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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.0-pull-request...
[mirror_qemu.git] / linux-user / syscall.c
CommitLineData
31e31b8a
FB		 1/*
2 * Linux syscalls
5fafdf24 3 *
31e31b8a
FB		 4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
8167ee88 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
31e31b8a 18 */
d5b3a9b6 19#define _ATFILE_SOURCE
d39594e9 20#include "qemu/osdep.h"
f348b6d1
VB		 21#include "qemu/cutils.h"
22#include "qemu/path.h"
9bdfa4d2 23#include "qemu/memfd.h"
dc5e9ac7 24#include "qemu/queue.h"
31e31b8a
FB		 25#include <elf.h>
26#include <endian.h>
c56dc774 27#include <grp.h>
d08d3bb8
TS		 28#include <sys/ipc.h>
29#include <sys/msg.h>
31e31b8a 30#include <sys/wait.h>
31e31b8a 31#include <sys/mount.h>
586b0bef
JS		 32#include <sys/file.h>
33#include <sys/fsuid.h>
34#include <sys/personality.h>
39b9aae1 35#include <sys/prctl.h>
31e31b8a 36#include <sys/resource.h>
31e31b8a 37#include <sys/swap.h>
e0eb210e 38#include <linux/capability.h>
31e31b8a 39#include <sched.h>
19f59bce 40#include <sys/timex.h>
31e31b8a 41#include <sys/socket.h>
6d5d5dde 42#include <linux/sockios.h>
607175e0 43#include <sys/un.h>
31e31b8a 44#include <sys/uio.h>
0839f11c 45#include <poll.h>
32f36bce 46#include <sys/times.h>
8853f86e 47#include <sys/shm.h>
fa294816 48#include <sys/sem.h>
56c8f68f 49#include <sys/statfs.h>
ebc05488 50#include <utime.h>
a5448a7d 51#include <sys/sysinfo.h>
e36800c9 52#include <sys/signalfd.h>
72f03900 53//#include <sys/user.h>
22db1213 54#include <netinet/in.h>
8853f86e 55#include <netinet/ip.h>
7854b056 56#include <netinet/tcp.h>
fe51b0a5 57#include <netinet/udp.h>
86fcd946 58#include <linux/wireless.h>
920394db 59#include <linux/icmp.h>
ee1ac3a1 60#include <linux/icmpv6.h>
6addf06a 61#include <linux/if_tun.h>
22db1213 62#include <linux/in6.h>
ee1ac3a1 63#include <linux/errqueue.h>
d6d6d6fe 64#include <linux/random.h>
d80a1905
RV		 65#ifdef CONFIG_TIMERFD
66#include <sys/timerfd.h>
67#endif
c2882b96
RV		 68#ifdef CONFIG_EVENTFD
69#include <sys/eventfd.h>
70#endif
3b6edd16
PM		 71#ifdef CONFIG_EPOLL
72#include <sys/epoll.h>
73#endif
a790ae38 74#ifdef CONFIG_ATTR
1de7afc9 75#include "qemu/xattr.h"
a790ae38 76#endif
a8fd1aba
PM		 77#ifdef CONFIG_SENDFILE
78#include <sys/sendfile.h>
79#endif
4a9d5f89 80#ifdef HAVE_SYS_KCOV_H
bd27e675
AM		 81#include <sys/kcov.h>
82#endif
31e31b8a
FB		 83
84#define termios host_termios
85#define winsize host_winsize
86#define termio host_termio
04369ff2
FB		 87#define sgttyb host_sgttyb /* same as target */
88#define tchars host_tchars /* same as target */
89#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 90
91#include <linux/termios.h>
92#include <linux/unistd.h>
31e31b8a
FB		 93#include <linux/cdrom.h>
94#include <linux/hdreg.h>
95#include <linux/soundcard.h>
19b84f3c 96#include <linux/kd.h>
8fbd6b52 97#include <linux/mtio.h>
350d1779 98#include <linux/fs.h>
ab22b4dd 99#include <linux/fd.h>
dace20dc 100#if defined(CONFIG_FIEMAP)
285da2b9 101#include <linux/fiemap.h>
dace20dc 102#endif
f7680a55 103#include <linux/fb.h>
6c753a63
CT		 104#if defined(CONFIG_USBFS)
105#include <linux/usbdevice_fs.h>
a133367e 106#include <linux/usb/ch9.h>
6c753a63 107#endif
f7680a55 108#include <linux/vt.h>
56e904ec 109#include <linux/dm-ioctl.h>
c07ecc68 110#include <linux/reboot.h>
7ff7b666 111#include <linux/route.h>
f57d4192 112#include <linux/filter.h>
fff8c539 113#include <linux/blkpg.h>
a82ea939 114#include <netpacket/packet.h>
6c5b5645 115#include <linux/netlink.h>
f31dddd2 116#include <linux/if_alg.h>
68365f96 117#include <linux/rtc.h>
1c4c6fcd 118#include <sound/asound.h>
48f670ec 119#ifdef HAVE_BTRFS_H
d6092e08
FB		 120#include <linux/btrfs.h>
121#endif
e865b97f
CG		 122#ifdef HAVE_DRM_H
123#include <libdrm/drm.h>
913b03c2 124#include <libdrm/i915_drm.h>
e865b97f 125#endif
d7e4036e 126#include "linux_loop.h"
18cb0088 127#include "uname.h"
31e31b8a 128
3ef693a0 129#include "qemu.h"
5ebdd774 130#include "qemu/guest-random.h"
01ef6b9e 131#include "qemu/selfmap.h"
c36f7a64 132#include "user/syscall-trace.h"
51977e25 133#include "qapi/error.h"
f7e6a401 134#include "fd-trans.h"
dcb32f1d 135#include "tcg/tcg.h"
31e31b8a 136
5ea2fc84
PM		 137#ifndef CLONE_IO
138#define CLONE_IO 0x80000000 /* Clone io context */
139#endif
140
141/* We can't directly call the host clone syscall, because this will
142 * badly confuse libc (breaking mutexes, for example). So we must
143 * divide clone flags into:
144 * * flag combinations that look like pthread_create()
145 * * flag combinations that look like fork()
146 * * flags we can implement within QEMU itself
147 * * flags we can't support and will return an error for
148 */
149/* For thread creation, all these flags must be present; for
150 * fork, none must be present.
151 */
152#define CLONE_THREAD_FLAGS \
153 (CLONE_VM | CLONE_FS | CLONE_FILES | \
154 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
155
156/* These flags are ignored:
157 * CLONE_DETACHED is now ignored by the kernel;
158 * CLONE_IO is just an optimisation hint to the I/O scheduler
159 */
160#define CLONE_IGNORED_FLAGS \
161 (CLONE_DETACHED | CLONE_IO)
162
163/* Flags for fork which we can implement within QEMU itself */
164#define CLONE_OPTIONAL_FORK_FLAGS \
165 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
166 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
167
168/* Flags for thread creation which we can implement within QEMU itself */
169#define CLONE_OPTIONAL_THREAD_FLAGS \
170 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
171 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
172
173#define CLONE_INVALID_FORK_FLAGS \
174 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
175
176#define CLONE_INVALID_THREAD_FLAGS \
177 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
178 CLONE_IGNORED_FLAGS))
179
180/* CLONE_VFORK is special cased early in do_fork(). The other flag bits
181 * have almost all been allocated. We cannot support any of
182 * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
183 * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
184 * The checks against the invalid thread masks above will catch these.
185 * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
186 */
30813cea 187
71a8f7fe
TB		 188/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
189 * once. This exercises the codepaths for restart.
190 */
191//#define DEBUG_ERESTARTSYS
31e31b8a 192
1a9353d2 193//#include <linux/msdos_fs.h>
6556a833
AJ		 194#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
195#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 196
70a194b9
FB		 197#undef _syscall0
198#undef _syscall1
199#undef _syscall2
200#undef _syscall3
201#undef _syscall4
202#undef _syscall5
83fcb515 203#undef _syscall6
70a194b9 204
83fcb515 205#define _syscall0(type,name) \
8fcd3692 206static type name (void) \
83fcb515
FB		 207{ \
208 return syscall(__NR_##name); \
209}
70a194b9 210
83fcb515 211#define _syscall1(type,name,type1,arg1) \
8fcd3692 212static type name (type1 arg1) \
83fcb515
FB		 213{ \
214 return syscall(__NR_##name, arg1); \
70a194b9
FB		 215}
216
83fcb515 217#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 218static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 219{ \
220 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 221}
222
83fcb515 223#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 224static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 225{ \
226 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 227}
228
83fcb515 229#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 230static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 231{ \
232 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 233}
234
83fcb515
FB		 235#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
236 type5,arg5) \
8fcd3692 237static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 238{ \
239 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 240}
241
83fcb515
FB		 242
243#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
244 type5,arg5,type6,arg6) \
8fcd3692
BS		 245static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
246 type6 arg6) \
83fcb515
FB		 247{ \
248 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 249}
83fcb515 250
70a194b9 251
31e31b8a 252#define __NR_sys_uname __NR_uname
72f03900 253#define __NR_sys_getcwd1 __NR_getcwd
72f03900 254#define __NR_sys_getdents __NR_getdents
dab2ed99 255#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 256#define __NR_sys_getpriority __NR_getpriority
66fb9763 257#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
cf8b8bfc 258#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
7494b0f9 259#define __NR_sys_syslog __NR_syslog
14690296
AF		 260#if defined(__NR_futex)
261# define __NR_sys_futex __NR_futex
262#endif
263#if defined(__NR_futex_time64)
264# define __NR_sys_futex_time64 __NR_futex_time64
265#endif
39b59763
AJ		 266#define __NR_sys_inotify_init __NR_inotify_init
267#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
268#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
efa92184 269#define __NR_sys_statx __NR_statx
31e31b8a 270
b1cef6d0 271#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
9af9eaaa
FB		 272#define __NR__llseek __NR_lseek
273#endif
274
a29e5ba2
JH		 275/* Newer kernel ports have llseek() instead of _llseek() */
276#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
277#define TARGET_NR__llseek TARGET_NR_llseek
278#endif
279
78721301
HD		 280/* some platforms need to mask more bits than just TARGET_O_NONBLOCK */
281#ifndef TARGET_O_NONBLOCK_MASK
282#define TARGET_O_NONBLOCK_MASK TARGET_O_NONBLOCK
283#endif
284
71ba74f6
DB		 285#define __NR_sys_gettid __NR_gettid
286_syscall0(int, sys_gettid)
2b3f64cb
PM		 287
288/* For the 64-bit guest on 32-bit host case we must emulate
289 * getdents using getdents64, because otherwise the host
290 * might hand us back more dirent records than we can fit
291 * into the guest buffer after structure format conversion.
292 * Otherwise we emulate getdents with getdents if the host has it.
293 */
294#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
295#define EMULATE_GETDENTS_WITH_GETDENTS
296#endif
297
298#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
3b3f24ad 299_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236 300#endif
2b3f64cb
PM		 301#if (defined(TARGET_NR_getdents) && \
302 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
3307e236 303 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 304_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
305#endif
d35b261c 306#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 307_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
308 loff_t *, res, uint, wh);
309#endif
c1a402a7 310_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
cf8b8bfc
MS		 311_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
312 siginfo_t *, uinfo)
3b3f24ad 313_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
3b3f24ad
AJ		 314#ifdef __NR_exit_group
315_syscall1(int,exit_group,int,error_code)
316#endif
317#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
318_syscall1(int,set_tid_address,int *,tidptr)
319#endif
14690296 320#if defined(__NR_futex)
3b3f24ad
AJ		 321_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
322 const struct timespec *,timeout,int *,uaddr2,int,val3)
323#endif
14690296
AF		 324#if defined(__NR_futex_time64)
325_syscall6(int,sys_futex_time64,int *,uaddr,int,op,int,val,
326 const struct timespec *,timeout,int *,uaddr2,int,val3)
327#endif
737de1d1
MF		 328#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
329_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
330 unsigned long *, user_mask_ptr);
331#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
332_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
333 unsigned long *, user_mask_ptr);
b827c3ed
ST		 334#define __NR_sys_getcpu __NR_getcpu
335_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
0f6b4d21
AG		 336_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
337 void *, arg);
e0eb210e
PM		 338_syscall2(int, capget, struct __user_cap_header_struct *, header,
339 struct __user_cap_data_struct *, data);
340_syscall2(int, capset, struct __user_cap_header_struct *, header,
341 struct __user_cap_data_struct *, data);
ab31cda3
PB		 342#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
343_syscall2(int, ioprio_get, int, which, int, who)
344#endif
345#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
346_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
347#endif
f894efd1
LV		 348#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
349_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
350#endif
3b3f24ad 351
2f14788c
LV		 352#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
353_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
354 unsigned long, idx1, unsigned long, idx2)
355#endif
356
efa92184
AR		 357/*
358 * It is assumed that struct statx is architecture independent.
359 */
360#if defined(TARGET_NR_statx) && defined(__NR_statx)
361_syscall5(int, sys_statx, int, dirfd, const char *, pathname, int, flags,
362 unsigned int, mask, struct target_statx *, statxbuf)
363#endif
8500476f
AS		 364#if defined(TARGET_NR_membarrier) && defined(__NR_membarrier)
365_syscall2(int, membarrier, int, cmd, int, flags)
366#endif
efa92184 367
3b3f24ad
AJ		 368static bitmask_transtbl fcntl_flags_tbl[] = {
369 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
370 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
371 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
372 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
373 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
374 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
375 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
376 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 377 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 378 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
379 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
380 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
381 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 382#if defined(O_DIRECT)
383 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 384#endif
385#if defined(O_NOATIME)
386 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
387#endif
388#if defined(O_CLOEXEC)
389 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
390#endif
391#if defined(O_PATH)
392 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
5f9cee46
RV		 393#endif
394#if defined(O_TMPFILE)
395 { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
afc8763f
RH		 396#endif
397 /* Don't terminate the list prematurely on 64-bit host+guest. */
398#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
399 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 400#endif
401 { 0, 0, 0, 0 }
402};
403
0f6bb195 404_syscall2(int, sys_getcwd1, char *, buf, size_t, size)
3b3f24ad 405
cac46eb0 406#if defined(TARGET_NR_utimensat) || defined(TARGET_NR_utimensat_time64)
700fa58e 407#if defined(__NR_utimensat)
1acae9f2 408#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 409_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
410 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 411#else
412static int sys_utimensat(int dirfd, const char *pathname,
413 const struct timespec times[2], int flags)
414{
415 errno = ENOSYS;
416 return -1;
417}
9007f0ef 418#endif
1acae9f2 419#endif /* TARGET_NR_utimensat */
3b3f24ad 420
95d0307c
AS		 421#ifdef TARGET_NR_renameat2
422#if defined(__NR_renameat2)
423#define __NR_sys_renameat2 __NR_renameat2
424_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
425 const char *, new, unsigned int, flags)
426#else
427static int sys_renameat2(int oldfd, const char *old,
428 int newfd, const char *new, int flags)
429{
430 if (flags == 0) {
431 return renameat(oldfd, old, newfd, new);
432 }
433 errno = ENOSYS;
434 return -1;
435}
436#endif
437#endif /* TARGET_NR_renameat2 */
438
3b3f24ad 439#ifdef CONFIG_INOTIFY
8690e420 440#include <sys/inotify.h>
3b3f24ad 441
39b59763 442#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 443static int sys_inotify_init(void)
444{
445 return (inotify_init());
446}
39b59763
AJ		 447#endif
448#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 449static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
450{
451 return (inotify_add_watch(fd, pathname, mask));
452}
39b59763
AJ		 453#endif
454#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 455static int sys_inotify_rm_watch(int fd, int32_t wd)
456{
8690e420 457 return (inotify_rm_watch(fd, wd));
3b3f24ad 458}
bd0c5661 459#endif
c05c7a73
RV		 460#ifdef CONFIG_INOTIFY1
461#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
462static int sys_inotify_init1(int flags)
463{
464 return (inotify_init1(flags));
465}
466#endif
467#endif
3b3f24ad
AJ		 468#else
469/* Userspace can usually survive runtime without inotify */
470#undef TARGET_NR_inotify_init
c05c7a73 471#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 472#undef TARGET_NR_inotify_add_watch
473#undef TARGET_NR_inotify_rm_watch
474#endif /* CONFIG_INOTIFY */
475
163a05a8
PM		 476#if defined(TARGET_NR_prlimit64)
477#ifndef __NR_prlimit64
478# define __NR_prlimit64 -1
479#endif
480#define __NR_sys_prlimit64 __NR_prlimit64
481/* The glibc rlimit structure may not be that used by the underlying syscall */
482struct host_rlimit64 {
483 uint64_t rlim_cur;
484 uint64_t rlim_max;
485};
486_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
487 const struct host_rlimit64 *, new_limit,
488 struct host_rlimit64 *, old_limit)
489#endif
490
f4f1e10a
ECL		 491
492#if defined(TARGET_NR_timer_create)
6f9ff551 493/* Maximum of 32 active POSIX timers allowed at any one time. */
f4f1e10a
ECL		 494static timer_t g_posix_timers[32] = { 0, } ;
495
496static inline int next_free_host_timer(void)
497{
498 int k ;
499 /* FIXME: Does finding the next free slot require a lock? */
500 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
501 if (g_posix_timers[k] == 0) {
502 g_posix_timers[k] = (timer_t) 1;
503 return k;
504 }
505 }
506 return -1;
507}
508#endif
509
b92c47c1
TS		 510#define ERRNO_TABLE_SIZE 1200
511
512/* target_to_host_errno_table[] is initialized from
513 * host_to_target_errno_table[] in syscall_init(). */
514static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
515};
516
637947f1 517/*
fe8f096b 518 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 519 * minus the errnos that are not actually generic to all archs.
520 */
b92c47c1 521static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
08703b9f 522 [EAGAIN] = TARGET_EAGAIN,
637947f1
TS		 523 [EIDRM] = TARGET_EIDRM,
524 [ECHRNG] = TARGET_ECHRNG,
525 [EL2NSYNC] = TARGET_EL2NSYNC,
526 [EL3HLT] = TARGET_EL3HLT,
527 [EL3RST] = TARGET_EL3RST,
528 [ELNRNG] = TARGET_ELNRNG,
529 [EUNATCH] = TARGET_EUNATCH,
530 [ENOCSI] = TARGET_ENOCSI,
531 [EL2HLT] = TARGET_EL2HLT,
532 [EDEADLK] = TARGET_EDEADLK,
533 [ENOLCK] = TARGET_ENOLCK,
534 [EBADE] = TARGET_EBADE,
535 [EBADR] = TARGET_EBADR,
536 [EXFULL] = TARGET_EXFULL,
537 [ENOANO] = TARGET_ENOANO,
538 [EBADRQC] = TARGET_EBADRQC,
539 [EBADSLT] = TARGET_EBADSLT,
540 [EBFONT] = TARGET_EBFONT,
541 [ENOSTR] = TARGET_ENOSTR,
542 [ENODATA] = TARGET_ENODATA,
543 [ETIME] = TARGET_ETIME,
544 [ENOSR] = TARGET_ENOSR,
545 [ENONET] = TARGET_ENONET,
546 [ENOPKG] = TARGET_ENOPKG,
547 [EREMOTE] = TARGET_EREMOTE,
548 [ENOLINK] = TARGET_ENOLINK,
549 [EADV] = TARGET_EADV,
550 [ESRMNT] = TARGET_ESRMNT,
551 [ECOMM] = TARGET_ECOMM,
552 [EPROTO] = TARGET_EPROTO,
553 [EDOTDOT] = TARGET_EDOTDOT,
554 [EMULTIHOP] = TARGET_EMULTIHOP,
555 [EBADMSG] = TARGET_EBADMSG,
556 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
557 [EOVERFLOW] = TARGET_EOVERFLOW,
558 [ENOTUNIQ] = TARGET_ENOTUNIQ,
559 [EBADFD] = TARGET_EBADFD,
560 [EREMCHG] = TARGET_EREMCHG,
561 [ELIBACC] = TARGET_ELIBACC,
562 [ELIBBAD] = TARGET_ELIBBAD,
563 [ELIBSCN] = TARGET_ELIBSCN,
564 [ELIBMAX] = TARGET_ELIBMAX,
565 [ELIBEXEC] = TARGET_ELIBEXEC,
566 [EILSEQ] = TARGET_EILSEQ,
567 [ENOSYS] = TARGET_ENOSYS,
568 [ELOOP] = TARGET_ELOOP,
569 [ERESTART] = TARGET_ERESTART,
570 [ESTRPIPE] = TARGET_ESTRPIPE,
571 [ENOTEMPTY] = TARGET_ENOTEMPTY,
572 [EUSERS] = TARGET_EUSERS,
573 [ENOTSOCK] = TARGET_ENOTSOCK,
574 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
575 [EMSGSIZE] = TARGET_EMSGSIZE,
576 [EPROTOTYPE] = TARGET_EPROTOTYPE,
577 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
578 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
579 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
580 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
581 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
582 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
583 [EADDRINUSE] = TARGET_EADDRINUSE,
584 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
585 [ENETDOWN] = TARGET_ENETDOWN,
586 [ENETUNREACH] = TARGET_ENETUNREACH,
587 [ENETRESET] = TARGET_ENETRESET,
588 [ECONNABORTED] = TARGET_ECONNABORTED,
589 [ECONNRESET] = TARGET_ECONNRESET,
590 [ENOBUFS] = TARGET_ENOBUFS,
591 [EISCONN] = TARGET_EISCONN,
592 [ENOTCONN] = TARGET_ENOTCONN,
593 [EUCLEAN] = TARGET_EUCLEAN,
594 [ENOTNAM] = TARGET_ENOTNAM,
595 [ENAVAIL] = TARGET_ENAVAIL,
596 [EISNAM] = TARGET_EISNAM,
597 [EREMOTEIO] = TARGET_EREMOTEIO,
0444a3b7 598 [EDQUOT] = TARGET_EDQUOT,
637947f1
TS		 599 [ESHUTDOWN] = TARGET_ESHUTDOWN,
600 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
601 [ETIMEDOUT] = TARGET_ETIMEDOUT,
602 [ECONNREFUSED] = TARGET_ECONNREFUSED,
603 [EHOSTDOWN] = TARGET_EHOSTDOWN,
604 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
605 [EALREADY] = TARGET_EALREADY,
606 [EINPROGRESS] = TARGET_EINPROGRESS,
607 [ESTALE] = TARGET_ESTALE,
608 [ECANCELED] = TARGET_ECANCELED,
609 [ENOMEDIUM] = TARGET_ENOMEDIUM,
610 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 611#ifdef ENOKEY
637947f1 612 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 613#endif
614#ifdef EKEYEXPIRED
637947f1 615 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 616#endif
617#ifdef EKEYREVOKED
637947f1 618 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 619#endif
620#ifdef EKEYREJECTED
637947f1 621 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 622#endif
623#ifdef EOWNERDEAD
637947f1 624 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 625#endif
626#ifdef ENOTRECOVERABLE
637947f1 627 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 628#endif
da39db63
AM		 629#ifdef ENOMSG
630 [ENOMSG] = TARGET_ENOMSG,
631#endif
fe8ed7d5
RH		 632#ifdef ERKFILL
633 [ERFKILL] = TARGET_ERFKILL,
634#endif
635#ifdef EHWPOISON
636 [EHWPOISON] = TARGET_EHWPOISON,
637#endif
b92c47c1 638};
637947f1
TS		 639
640static inline int host_to_target_errno(int err)
641{
2466119c
TB		 642 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
643 host_to_target_errno_table[err]) {
637947f1 644 return host_to_target_errno_table[err];
2466119c 645 }
637947f1
TS		 646 return err;
647}
648
b92c47c1
TS		 649static inline int target_to_host_errno(int err)
650{
2466119c
TB		 651 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
652 target_to_host_errno_table[err]) {
b92c47c1 653 return target_to_host_errno_table[err];
2466119c 654 }
b92c47c1
TS		 655 return err;
656}
657
992f48a0 658static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 659{
660 if (ret == -1)
637947f1 661 return -host_to_target_errno(errno);
31e31b8a
FB		 662 else
663 return ret;
664}
665
7dcdaeaf 666const char *target_strerror(int err)
b92c47c1 667{
da2a34f7
PM		 668 if (err == TARGET_ERESTARTSYS) {
669 return "To be restarted";
670 }
671 if (err == TARGET_QEMU_ESIGRETURN) {
672 return "Successful exit from sigreturn";
673 }
674
962b289e
AG		 675 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
676 return NULL;
677 }
b92c47c1
TS		 678 return strerror(target_to_host_errno(err));
679}
680
4d330cee
TB		 681#define safe_syscall0(type, name) \
682static type safe_##name(void) \
683{ \
684 return safe_syscall(__NR_##name); \
685}
686
687#define safe_syscall1(type, name, type1, arg1) \
688static type safe_##name(type1 arg1) \
689{ \
690 return safe_syscall(__NR_##name, arg1); \
691}
692
693#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
694static type safe_##name(type1 arg1, type2 arg2) \
695{ \
696 return safe_syscall(__NR_##name, arg1, arg2); \
697}
698
699#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
700static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
701{ \
702 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
703}
704
705#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
706 type4, arg4) \
707static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
708{ \
709 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
710}
711
712#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
713 type4, arg4, type5, arg5) \
714static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
715 type5 arg5) \
716{ \
717 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
718}
719
720#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
721 type4, arg4, type5, arg5, type6, arg6) \
722static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
723 type5 arg5, type6 arg6) \
724{ \
725 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
726}
727
50afd02b
TB		 728safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
729safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
c10a0738
TB		 730safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
731 int, flags, mode_t, mode)
859e8a89 732#if defined(TARGET_NR_wait4) || defined(TARGET_NR_waitpid)
4af80a37
TB		 733safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
734 struct rusage *, rusage)
859e8a89 735#endif
4af80a37
TB		 736safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
737 int, options, struct rusage *, rusage)
ffdcbe22 738safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
859e8a89 739#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
e5ce9688 740 defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
6df9d38d
PM		 741safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
742 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
859e8a89 743#endif
e5ce9688 744#if defined(TARGET_NR_ppoll) || defined(TARGET_NR_ppoll_time64)
a6130237
PM		 745safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
746 struct timespec *, tsp, const sigset_t *, sigmask,
747 size_t, sigsetsize)
859e8a89 748#endif
227f0214
PM		 749safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
750 int, maxevents, int, timeout, const sigset_t *, sigmask,
751 size_t, sigsetsize)
14690296 752#if defined(__NR_futex)
d509eeb1
PM		 753safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
754 const struct timespec *,timeout,int *,uaddr2,int,val3)
859e8a89 755#endif
14690296
AF		 756#if defined(__NR_futex_time64)
757safe_syscall6(int,futex_time64,int *,uaddr,int,op,int,val, \
758 const struct timespec *,timeout,int *,uaddr2,int,val3)
759#endif
2fe4fba1 760safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
bef653d9
PM		 761safe_syscall2(int, kill, pid_t, pid, int, sig)
762safe_syscall2(int, tkill, int, tid, int, sig)
763safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
918c03ed
PM		 764safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
765safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
0f26386c
DJ		 766safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
767 unsigned long, pos_l, unsigned long, pos_h)
f8d00fba
DJ		 768safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
769 unsigned long, pos_l, unsigned long, pos_h)
2a3c7619
PM		 770safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
771 socklen_t, addrlen)
66687530
PM		 772safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
773 int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
774safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
775 int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
776safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
777safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
2a845989 778safe_syscall2(int, flock, int, fd, int, operation)
ddcbde15 779#if defined(TARGET_NR_rt_sigtimedwait) || defined(TARGET_NR_rt_sigtimedwait_time64)
b3f82330
PM		 780safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
781 const struct timespec *, uts, size_t, sigsetsize)
859e8a89 782#endif
ff6dc130
PM		 783safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
784 int, flags)
859e8a89 785#if defined(TARGET_NR_nanosleep)
9e518226
PM		 786safe_syscall2(int, nanosleep, const struct timespec *, req,
787 struct timespec *, rem)
859e8a89 788#endif
6ac03b2c
FB		 789#if defined(TARGET_NR_clock_nanosleep) || \
790 defined(TARGET_NR_clock_nanosleep_time64)
9e518226
PM		 791safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
792 const struct timespec *, req, struct timespec *, rem)
793#endif
524fa340 794#ifdef __NR_ipc
d8c08b1e
MK		 795#ifdef __s390x__
796safe_syscall5(int, ipc, int, call, long, first, long, second, long, third,
797 void *, ptr)
798#else
89f9fe44
PM		 799safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
800 void *, ptr, long, fifth)
86e63695 801#endif
d8c08b1e 802#endif
86e63695
LV		 803#ifdef __NR_msgsnd
804safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
805 int, flags)
86e63695
LV		 806#endif
807#ifdef __NR_msgrcv
808safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
809 long, msgtype, int, flags)
86e63695
LV		 810#endif
811#ifdef __NR_semtimedop
812safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
813 unsigned, nsops, const struct timespec *, timeout)
89f9fe44 814#endif
d107e375
FB		 815#if defined(TARGET_NR_mq_timedsend) || \
816 defined(TARGET_NR_mq_timedsend_time64)
d40ecd66
PM		 817safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
818 size_t, len, unsigned, prio, const struct timespec *, timeout)
859e8a89 819#endif
d107e375
FB		 820#if defined(TARGET_NR_mq_timedreceive) || \
821 defined(TARGET_NR_mq_timedreceive_time64)
d40ecd66
PM		 822safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
823 size_t, len, unsigned *, prio, const struct timespec *, timeout)
824#endif
84946457
AS		 825#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
826safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff,
827 int, outfd, loff_t *, poutoff, size_t, length,
828 unsigned int, flags)
829#endif
830
49ca6f3e
PM		 831/* We do ioctl like this rather than via safe_syscall3 to preserve the
832 * "third argument might be integer or pointer or not present" behaviour of
833 * the libc function.
834 */
835#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
435da5e7
PM		 836/* Similarly for fcntl. Note that callers must always:
837 * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
838 * use the flock64 struct rather than unsuffixed flock
839 * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
840 */
841#ifdef __NR_fcntl64
842#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
843#else
844#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
845#endif
50afd02b 846
8289d112
PB		 847static inline int host_to_target_sock_type(int host_type)
848{
849 int target_type;
850
851 switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
852 case SOCK_DGRAM:
853 target_type = TARGET_SOCK_DGRAM;
854 break;
855 case SOCK_STREAM:
856 target_type = TARGET_SOCK_STREAM;
857 break;
858 default:
859 target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
860 break;
861 }
862
863#if defined(SOCK_CLOEXEC)
864 if (host_type & SOCK_CLOEXEC) {
865 target_type |= TARGET_SOCK_CLOEXEC;
866 }
867#endif
868
869#if defined(SOCK_NONBLOCK)
870 if (host_type & SOCK_NONBLOCK) {
871 target_type |= TARGET_SOCK_NONBLOCK;
872 }
873#endif
874
875 return target_type;
876}
877
992f48a0
BS		 878static abi_ulong target_brk;
879static abi_ulong target_original_brk;
4d1de87c 880static abi_ulong brk_page;
31e31b8a 881
992f48a0 882void target_set_brk(abi_ulong new_brk)
31e31b8a 883{
4c1de73d 884 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 885 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 886}
887
4d1de87c
CV		 888//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
889#define DEBUGF_BRK(message, args...)
890
0da46a6e 891/* do_brk() must return target values and target errnos. */
992f48a0 892abi_long do_brk(abi_ulong new_brk)
31e31b8a 893{
992f48a0 894 abi_long mapped_addr;
ef4330c2 895 abi_ulong new_alloc_size;
31e31b8a 896
ee1bf83d
RH		 897 /* brk pointers are always untagged */
898
3a0c6c4a 899 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 900
901 if (!new_brk) {
3a0c6c4a 902 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 903 return target_brk;
4d1de87c
CV		 904 }
905 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 906 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
907 target_brk);
7ab240ad 908 return target_brk;
4d1de87c 909 }
3b46e624 910
4d1de87c
CV		 911 /* If the new brk is less than the highest page reserved to the
912 * target heap allocation, set it and we're almost done... */
913 if (new_brk <= brk_page) {
914 /* Heap contents are initialized to zero, as for anonymous
915 * mapped pages. */
916 if (new_brk > target_brk) {
3e8f1628 917 memset(g2h_untagged(target_brk), 0, new_brk - target_brk);
4d1de87c 918 }
31e31b8a 919 target_brk = new_brk;
3a0c6c4a 920 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
72e21db7 921 return target_brk;
31e31b8a
FB		 922 }
923
00faf08c
PM		 924 /* We need to allocate more memory after the brk... Note that
925 * we don't use MAP_FIXED because that will map over the top of
926 * any existing mapping (like the one with the host libc or qemu
927 * itself); instead we treat "mapped but at wrong address" as
928 * a failure and unmap again.
929 */
4d1de87c 930 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 931 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 932 PROT_READ|PROT_WRITE,
00faf08c
PM		 933 MAP_ANON|MAP_PRIVATE, 0, 0));
934
935 if (mapped_addr == brk_page) {
70afc343
CV		 936 /* Heap contents are initialized to zero, as for anonymous
937 * mapped pages. Technically the new pages are already
938 * initialized to zero since they *are* anonymous mapped
939 * pages, however we have to take care with the contents that
940 * come from the remaining part of the previous page: it may
941 * contains garbage data due to a previous heap usage (grown
942 * then shrunken). */
3e8f1628 943 memset(g2h_untagged(target_brk), 0, brk_page - target_brk);
70afc343 944
00faf08c 945 target_brk = new_brk;
4d1de87c 946 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 947 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
948 target_brk);
00faf08c
PM		 949 return target_brk;
950 } else if (mapped_addr != -1) {
951 /* Mapped but at wrong address, meaning there wasn't actually
952 * enough space for this brk.
953 */
954 target_munmap(mapped_addr, new_alloc_size);
955 mapped_addr = -1;
3a0c6c4a 956 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 957 }
958 else {
3a0c6c4a 959 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 960 }
7ab240ad 961
7dd46c02
RH		 962#if defined(TARGET_ALPHA)
963 /* We (partially) emulate OSF/1 on Alpha, which requires we
964 return a proper errno, not an unchanged brk value. */
00faf08c 965 return -TARGET_ENOMEM;
7dd46c02 966#endif
00faf08c 967 /* For everything else, return the previous break. */
7ab240ad 968 return target_brk;
31e31b8a
FB		 969}
970
859e8a89 971#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
e5ce9688 972 defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
26edcf41
TS		 973static inline abi_long copy_from_user_fdset(fd_set *fds,
974 abi_ulong target_fds_addr,
975 int n)
31e31b8a 976{
26edcf41
TS		 977 int i, nw, j, k;
978 abi_ulong b, *target_fds;
979
b1b2db29 980 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 981 if (!(target_fds = lock_user(VERIFY_READ,
982 target_fds_addr,
983 sizeof(abi_ulong) * nw,
984 1)))
985 return -TARGET_EFAULT;
986
987 FD_ZERO(fds);
988 k = 0;
989 for (i = 0; i < nw; i++) {
990 /* grab the abi_ulong */
991 __get_user(b, &target_fds[i]);
992 for (j = 0; j < TARGET_ABI_BITS; j++) {
993 /* check the bit inside the abi_ulong */
994 if ((b >> j) & 1)
995 FD_SET(k, fds);
996 k++;
31e31b8a 997 }
31e31b8a 998 }
26edcf41
TS		 999
1000 unlock_user(target_fds, target_fds_addr, 0);
1001
1002 return 0;
31e31b8a
FB		 1003}
1004
055e0906
MF		 1005static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
1006 abi_ulong target_fds_addr,
1007 int n)
1008{
1009 if (target_fds_addr) {
1010 if (copy_from_user_fdset(fds, target_fds_addr, n))
1011 return -TARGET_EFAULT;
1012 *fds_ptr = fds;
1013 } else {
1014 *fds_ptr = NULL;
1015 }
1016 return 0;
1017}
1018
26edcf41
TS		 1019static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
1020 const fd_set *fds,
1021 int n)
31e31b8a 1022{
31e31b8a 1023 int i, nw, j, k;
992f48a0 1024 abi_long v;
26edcf41 1025 abi_ulong *target_fds;
31e31b8a 1026
b1b2db29 1027 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 1028 if (!(target_fds = lock_user(VERIFY_WRITE,
1029 target_fds_addr,
1030 sizeof(abi_ulong) * nw,
1031 0)))
1032 return -TARGET_EFAULT;
1033
1034 k = 0;
1035 for (i = 0; i < nw; i++) {
1036 v = 0;
1037 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 1038 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 1039 k++;
31e31b8a 1040 }
26edcf41 1041 __put_user(v, &target_fds[i]);
31e31b8a 1042 }
26edcf41
TS		 1043
1044 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
1045
1046 return 0;
31e31b8a 1047}
859e8a89 1048#endif
31e31b8a 1049
c596ed17
FB		 1050#if defined(__alpha__)
1051#define HOST_HZ 1024
1052#else
1053#define HOST_HZ 100
1054#endif
1055
992f48a0 1056static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 1057{
1058#if HOST_HZ == TARGET_HZ
1059 return ticks;
1060#else
1061 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
1062#endif
1063}
1064
579a97f7
FB		 1065static inline abi_long host_to_target_rusage(abi_ulong target_addr,
1066 const struct rusage *rusage)
b409186b 1067{
53a5960a
PB		 1068 struct target_rusage *target_rusage;
1069
579a97f7
FB		 1070 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
1071 return -TARGET_EFAULT;
cbb21eed
MB		 1072 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
1073 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
1074 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
1075 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
1076 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
1077 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
1078 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
1079 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
1080 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
1081 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
1082 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
1083 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
1084 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
1085 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
1086 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
1087 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
1088 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
1089 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 1090 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 1091
1092 return 0;
b409186b
FB		 1093}
1094
859e8a89 1095#ifdef TARGET_NR_setrlimit
cbb21eed 1096static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 1097{
cbb21eed 1098 abi_ulong target_rlim_swap;
95b33b2f
WT		 1099 rlim_t result;
1100
cbb21eed
MB		 1101 target_rlim_swap = tswapal(target_rlim);
1102 if (target_rlim_swap == TARGET_RLIM_INFINITY)
1103 return RLIM_INFINITY;
1104
1105 result = target_rlim_swap;
1106 if (target_rlim_swap != (rlim_t)result)
1107 return RLIM_INFINITY;
95b33b2f
WT		 1108
1109 return result;
81bbe906 1110}
859e8a89 1111#endif
81bbe906 1112
859e8a89 1113#if defined(TARGET_NR_getrlimit) || defined(TARGET_NR_ugetrlimit)
cbb21eed 1114static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 1115{
cbb21eed
MB		 1116 abi_ulong target_rlim_swap;
1117 abi_ulong result;
95b33b2f 1118
cbb21eed 1119 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 1120 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 1121 else
95b33b2f 1122 target_rlim_swap = rlim;
cbb21eed 1123 result = tswapal(target_rlim_swap);
95b33b2f
WT		 1124
1125 return result;
81bbe906 1126}
859e8a89 1127#endif
81bbe906 1128
e22b7015
WT		 1129static inline int target_to_host_resource(int code)
1130{
1131 switch (code) {
1132 case TARGET_RLIMIT_AS:
1133 return RLIMIT_AS;
1134 case TARGET_RLIMIT_CORE:
1135 return RLIMIT_CORE;
1136 case TARGET_RLIMIT_CPU:
1137 return RLIMIT_CPU;
1138 case TARGET_RLIMIT_DATA:
1139 return RLIMIT_DATA;
1140 case TARGET_RLIMIT_FSIZE:
1141 return RLIMIT_FSIZE;
1142 case TARGET_RLIMIT_LOCKS:
1143 return RLIMIT_LOCKS;
1144 case TARGET_RLIMIT_MEMLOCK:
1145 return RLIMIT_MEMLOCK;
1146 case TARGET_RLIMIT_MSGQUEUE:
1147 return RLIMIT_MSGQUEUE;
1148 case TARGET_RLIMIT_NICE:
1149 return RLIMIT_NICE;
1150 case TARGET_RLIMIT_NOFILE:
1151 return RLIMIT_NOFILE;
1152 case TARGET_RLIMIT_NPROC:
1153 return RLIMIT_NPROC;
1154 case TARGET_RLIMIT_RSS:
1155 return RLIMIT_RSS;
1156 case TARGET_RLIMIT_RTPRIO:
1157 return RLIMIT_RTPRIO;
1158 case TARGET_RLIMIT_SIGPENDING:
1159 return RLIMIT_SIGPENDING;
1160 case TARGET_RLIMIT_STACK:
1161 return RLIMIT_STACK;
1162 default:
1163 return code;
1164 }
1165}
1166
788f5ec4
TS		 1167static inline abi_long copy_from_user_timeval(struct timeval *tv,
1168 abi_ulong target_tv_addr)
31e31b8a 1169{
53a5960a
PB		 1170 struct target_timeval *target_tv;
1171
6d5d5dde 1172 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
579a97f7 1173 return -TARGET_EFAULT;
6d5d5dde 1174 }
788f5ec4
TS		 1175
1176 __get_user(tv->tv_sec, &target_tv->tv_sec);
1177 __get_user(tv->tv_usec, &target_tv->tv_usec);
1178
1179 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 1180
1181 return 0;
31e31b8a
FB		 1182}
1183
788f5ec4
TS		 1184static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1185 const struct timeval *tv)
31e31b8a 1186{
53a5960a
PB		 1187 struct target_timeval *target_tv;
1188
6d5d5dde
DB		 1189 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
1190 return -TARGET_EFAULT;
1191 }
1192
1193 __put_user(tv->tv_sec, &target_tv->tv_sec);
1194 __put_user(tv->tv_usec, &target_tv->tv_usec);
1195
1196 unlock_user_struct(target_tv, target_tv_addr, 1);
1197
1198 return 0;
1199}
1200
6ac03b2c
FB		 1201#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
1202static inline abi_long copy_from_user_timeval64(struct timeval *tv,
1203 abi_ulong target_tv_addr)
1204{
1205 struct target__kernel_sock_timeval *target_tv;
1206
1207 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
1208 return -TARGET_EFAULT;
1209 }
1210
1211 __get_user(tv->tv_sec, &target_tv->tv_sec);
1212 __get_user(tv->tv_usec, &target_tv->tv_usec);
1213
1214 unlock_user_struct(target_tv, target_tv_addr, 0);
1215
1216 return 0;
1217}
1218#endif
1219
6d5d5dde 1220static inline abi_long copy_to_user_timeval64(abi_ulong target_tv_addr,
6ac03b2c 1221 const struct timeval *tv)
6d5d5dde
DB		 1222{
1223 struct target__kernel_sock_timeval *target_tv;
1224
1225 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
579a97f7 1226 return -TARGET_EFAULT;
6d5d5dde 1227 }
788f5ec4
TS		 1228
1229 __put_user(tv->tv_sec, &target_tv->tv_sec);
1230 __put_user(tv->tv_usec, &target_tv->tv_usec);
1231
1232 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 1233
1234 return 0;
31e31b8a
FB		 1235}
1236
859e8a89
AF		 1237#if defined(TARGET_NR_futex) || \
1238 defined(TARGET_NR_rt_sigtimedwait) || \
1239 defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6) || \
1240 defined(TARGET_NR_nanosleep) || defined(TARGET_NR_clock_settime) || \
1241 defined(TARGET_NR_utimensat) || defined(TARGET_NR_mq_timedsend) || \
d8c08b1e 1242 defined(TARGET_NR_mq_timedreceive) || defined(TARGET_NR_ipc) || \
2c86c90f
FB		 1243 defined(TARGET_NR_semop) || defined(TARGET_NR_semtimedop) || \
1244 defined(TARGET_NR_timer_settime) || \
1245 (defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
6d5d5dde
DB		 1246static inline abi_long target_to_host_timespec(struct timespec *host_ts,
1247 abi_ulong target_addr)
1248{
1249 struct target_timespec *target_ts;
1250
1251 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
1252 return -TARGET_EFAULT;
1253 }
1254 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
1255 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
1256 unlock_user_struct(target_ts, target_addr, 0);
1257 return 0;
1258}
859e8a89 1259#endif
6d5d5dde 1260
828cb3a1
FB		 1261#if defined(TARGET_NR_clock_settime64) || defined(TARGET_NR_futex_time64) || \
1262 defined(TARGET_NR_timer_settime64) || \
d107e375
FB		 1263 defined(TARGET_NR_mq_timedsend_time64) || \
1264 defined(TARGET_NR_mq_timedreceive_time64) || \
6ac03b2c 1265 (defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)) || \
ddcbde15 1266 defined(TARGET_NR_clock_nanosleep_time64) || \
cac46eb0
FB		 1267 defined(TARGET_NR_rt_sigtimedwait_time64) || \
1268 defined(TARGET_NR_utimensat) || \
1269 defined(TARGET_NR_utimensat_time64) || \
e5ce9688
FB		 1270 defined(TARGET_NR_semtimedop_time64) || \
1271 defined(TARGET_NR_pselect6_time64) || defined(TARGET_NR_ppoll_time64)
c6c8d102
AF		 1272static inline abi_long target_to_host_timespec64(struct timespec *host_ts,
1273 abi_ulong target_addr)
1274{
1275 struct target__kernel_timespec *target_ts;
1276
1277 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
1278 return -TARGET_EFAULT;
1279 }
1280 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
1281 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
00576757
LV		 1282 /* in 32bit mode, this drops the padding */
1283 host_ts->tv_nsec = (long)(abi_long)host_ts->tv_nsec;
c6c8d102
AF		 1284 unlock_user_struct(target_ts, target_addr, 0);
1285 return 0;
1286}
1287#endif
1288
6d5d5dde
DB		 1289static inline abi_long host_to_target_timespec(abi_ulong target_addr,
1290 struct timespec *host_ts)
1291{
1292 struct target_timespec *target_ts;
1293
1294 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
1295 return -TARGET_EFAULT;
1296 }
1297 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
1298 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
1299 unlock_user_struct(target_ts, target_addr, 1);
1300 return 0;
1301}
1302
1303static inline abi_long host_to_target_timespec64(abi_ulong target_addr,
1304 struct timespec *host_ts)
1305{
1306 struct target__kernel_timespec *target_ts;
1307
1308 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
1309 return -TARGET_EFAULT;
1310 }
1311 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
1312 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
1313 unlock_user_struct(target_ts, target_addr, 1);
1314 return 0;
1315}
1316
a52f5f87
RH		 1317#if defined(TARGET_NR_gettimeofday)
1318static inline abi_long copy_to_user_timezone(abi_ulong target_tz_addr,
1319 struct timezone *tz)
1320{
1321 struct target_timezone *target_tz;
1322
1323 if (!lock_user_struct(VERIFY_WRITE, target_tz, target_tz_addr, 1)) {
1324 return -TARGET_EFAULT;
1325 }
1326
1327 __put_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1328 __put_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1329
1330 unlock_user_struct(target_tz, target_tz_addr, 1);
1331
1332 return 0;
1333}
1334#endif
1335
859e8a89 1336#if defined(TARGET_NR_settimeofday)
ef4467e9
PB		 1337static inline abi_long copy_from_user_timezone(struct timezone *tz,
1338 abi_ulong target_tz_addr)
1339{
1340 struct target_timezone *target_tz;
1341
1342 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1343 return -TARGET_EFAULT;
1344 }
1345
1346 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1347 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1348
1349 unlock_user_struct(target_tz, target_tz_addr, 0);
1350
1351 return 0;
1352}
859e8a89 1353#endif
ef4467e9 1354
8ec9cf89
NF		 1355#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1356#include <mqueue.h>
1357
24e1003a
AJ		 1358static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1359 abi_ulong target_mq_attr_addr)
1360{
1361 struct target_mq_attr *target_mq_attr;
1362
1363 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1364 target_mq_attr_addr, 1))
1365 return -TARGET_EFAULT;
1366
1367 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1368 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1369 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1370 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1371
1372 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1373
1374 return 0;
1375}
1376
1377static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1378 const struct mq_attr *attr)
1379{
1380 struct target_mq_attr *target_mq_attr;
1381
1382 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1383 target_mq_attr_addr, 0))
1384 return -TARGET_EFAULT;
1385
1386 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1387 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1388 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1389 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1390
1391 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1392
1393 return 0;
1394}
8ec9cf89 1395#endif
31e31b8a 1396
055e0906 1397#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 1398/* do_select() must return target values and target errnos. */
992f48a0 1399static abi_long do_select(int n,
26edcf41
TS		 1400 abi_ulong rfd_addr, abi_ulong wfd_addr,
1401 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 1402{
1403 fd_set rfds, wfds, efds;
1404 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6df9d38d
PM		 1405 struct timeval tv;
1406 struct timespec ts, *ts_ptr;
992f48a0 1407 abi_long ret;
31e31b8a 1408
055e0906
MF		 1409 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1410 if (ret) {
1411 return ret;
53a5960a 1412 }
055e0906
MF		 1413 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1414 if (ret) {
1415 return ret;
53a5960a 1416 }
055e0906
MF		 1417 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1418 if (ret) {
1419 return ret;
53a5960a 1420 }
3b46e624 1421
26edcf41 1422 if (target_tv_addr) {
788f5ec4
TS		 1423 if (copy_from_user_timeval(&tv, target_tv_addr))
1424 return -TARGET_EFAULT;
6df9d38d
PM		 1425 ts.tv_sec = tv.tv_sec;
1426 ts.tv_nsec = tv.tv_usec * 1000;
1427 ts_ptr = &ts;
31e31b8a 1428 } else {
6df9d38d 1429 ts_ptr = NULL;
31e31b8a 1430 }
26edcf41 1431
6df9d38d
PM		 1432 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1433 ts_ptr, NULL));
53a5960a 1434
26edcf41
TS		 1435 if (!is_error(ret)) {
1436 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1437 return -TARGET_EFAULT;
1438 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1439 return -TARGET_EFAULT;
1440 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1441 return -TARGET_EFAULT;
31e31b8a 1442
6df9d38d
PM		 1443 if (target_tv_addr) {
1444 tv.tv_sec = ts.tv_sec;
1445 tv.tv_usec = ts.tv_nsec / 1000;
1446 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1447 return -TARGET_EFAULT;
1448 }
1449 }
31e31b8a 1450 }
579a97f7 1451
31e31b8a
FB		 1452 return ret;
1453}
5457dc9e
LV		 1454
1455#if defined(TARGET_WANT_OLD_SYS_SELECT)
1456static abi_long do_old_select(abi_ulong arg1)
1457{
1458 struct target_sel_arg_struct *sel;
1459 abi_ulong inp, outp, exp, tvp;
1460 long nsel;
1461
1462 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
1463 return -TARGET_EFAULT;
1464 }
1465
1466 nsel = tswapal(sel->n);
1467 inp = tswapal(sel->inp);
1468 outp = tswapal(sel->outp);
1469 exp = tswapal(sel->exp);
1470 tvp = tswapal(sel->tvp);
1471
1472 unlock_user_struct(sel, arg1, 0);
1473
1474 return do_select(nsel, inp, outp, exp, tvp);
1475}
1476#endif
055e0906 1477#endif
31e31b8a 1478
e5ce9688
FB		 1479#if defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
1480static abi_long do_pselect6(abi_long arg1, abi_long arg2, abi_long arg3,
1481 abi_long arg4, abi_long arg5, abi_long arg6,
1482 bool time64)
1483{
1484 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
1485 fd_set rfds, wfds, efds;
1486 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
1487 struct timespec ts, *ts_ptr;
1488 abi_long ret;
1489
1490 /*
1491 * The 6th arg is actually two args smashed together,
1492 * so we cannot use the C library.
1493 */
1494 sigset_t set;
1495 struct {
1496 sigset_t *set;
1497 size_t size;
1498 } sig, *sig_ptr;
1499
1500 abi_ulong arg_sigset, arg_sigsize, *arg7;
1501 target_sigset_t *target_sigset;
1502
1503 n = arg1;
1504 rfd_addr = arg2;
1505 wfd_addr = arg3;
1506 efd_addr = arg4;
1507 ts_addr = arg5;
1508
1509 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1510 if (ret) {
1511 return ret;
1512 }
1513 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1514 if (ret) {
1515 return ret;
1516 }
1517 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1518 if (ret) {
1519 return ret;
1520 }
1521
1522 /*
1523 * This takes a timespec, and not a timeval, so we cannot
1524 * use the do_select() helper ...
1525 */
1526 if (ts_addr) {
1527 if (time64) {
1528 if (target_to_host_timespec64(&ts, ts_addr)) {
1529 return -TARGET_EFAULT;
1530 }
1531 } else {
1532 if (target_to_host_timespec(&ts, ts_addr)) {
1533 return -TARGET_EFAULT;
1534 }
1535 }
1536 ts_ptr = &ts;
1537 } else {
1538 ts_ptr = NULL;
1539 }
1540
1541 /* Extract the two packed args for the sigset */
1542 if (arg6) {
1543 sig_ptr = &sig;
1544 sig.size = SIGSET_T_SIZE;
1545
1546 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
1547 if (!arg7) {
1548 return -TARGET_EFAULT;
1549 }
1550 arg_sigset = tswapal(arg7[0]);
1551 arg_sigsize = tswapal(arg7[1]);
1552 unlock_user(arg7, arg6, 0);
1553
1554 if (arg_sigset) {
1555 sig.set = &set;
1556 if (arg_sigsize != sizeof(*target_sigset)) {
1557 /* Like the kernel, we enforce correct size sigsets */
1558 return -TARGET_EINVAL;
1559 }
1560 target_sigset = lock_user(VERIFY_READ, arg_sigset,
1561 sizeof(*target_sigset), 1);
1562 if (!target_sigset) {
1563 return -TARGET_EFAULT;
1564 }
1565 target_to_host_sigset(&set, target_sigset);
1566 unlock_user(target_sigset, arg_sigset, 0);
1567 } else {
1568 sig.set = NULL;
1569 }
1570 } else {
1571 sig_ptr = NULL;
1572 }
1573
1574 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1575 ts_ptr, sig_ptr));
1576
1577 if (!is_error(ret)) {
1578 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) {
1579 return -TARGET_EFAULT;
1580 }
1581 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) {
1582 return -TARGET_EFAULT;
1583 }
1584 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) {
1585 return -TARGET_EFAULT;
1586 }
1587 if (time64) {
1588 if (ts_addr && host_to_target_timespec64(ts_addr, &ts)) {
1589 return -TARGET_EFAULT;
1590 }
1591 } else {
1592 if (ts_addr && host_to_target_timespec(ts_addr, &ts)) {
1593 return -TARGET_EFAULT;
1594 }
1595 }
1596 }
1597 return ret;
1598}
1599#endif
1600
1601#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) || \
1602 defined(TARGET_NR_ppoll_time64)
1603static abi_long do_ppoll(abi_long arg1, abi_long arg2, abi_long arg3,
1604 abi_long arg4, abi_long arg5, bool ppoll, bool time64)
1605{
1606 struct target_pollfd *target_pfd;
1607 unsigned int nfds = arg2;
1608 struct pollfd *pfd;
1609 unsigned int i;
1610 abi_long ret;
1611
1612 pfd = NULL;
1613 target_pfd = NULL;
1614 if (nfds) {
1615 if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
1616 return -TARGET_EINVAL;
1617 }
1618 target_pfd = lock_user(VERIFY_WRITE, arg1,
1619 sizeof(struct target_pollfd) * nfds, 1);
1620 if (!target_pfd) {
1621 return -TARGET_EFAULT;
1622 }
1623
1624 pfd = alloca(sizeof(struct pollfd) * nfds);
1625 for (i = 0; i < nfds; i++) {
1626 pfd[i].fd = tswap32(target_pfd[i].fd);
1627 pfd[i].events = tswap16(target_pfd[i].events);
1628 }
1629 }
1630 if (ppoll) {
1631 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
1632 target_sigset_t *target_set;
1633 sigset_t _set, *set = &_set;
1634
1635 if (arg3) {
1636 if (time64) {
1637 if (target_to_host_timespec64(timeout_ts, arg3)) {
1638 unlock_user(target_pfd, arg1, 0);
1639 return -TARGET_EFAULT;
1640 }
1641 } else {
1642 if (target_to_host_timespec(timeout_ts, arg3)) {
1643 unlock_user(target_pfd, arg1, 0);
1644 return -TARGET_EFAULT;
1645 }
1646 }
1647 } else {
1648 timeout_ts = NULL;
1649 }
1650
1651 if (arg4) {
1652 if (arg5 != sizeof(target_sigset_t)) {
1653 unlock_user(target_pfd, arg1, 0);
1654 return -TARGET_EINVAL;
1655 }
1656
1657 target_set = lock_user(VERIFY_READ, arg4,
1658 sizeof(target_sigset_t), 1);
1659 if (!target_set) {
1660 unlock_user(target_pfd, arg1, 0);
1661 return -TARGET_EFAULT;
1662 }
1663 target_to_host_sigset(set, target_set);
1664 } else {
1665 set = NULL;
1666 }
1667
1668 ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
1669 set, SIGSET_T_SIZE));
1670
1671 if (!is_error(ret) && arg3) {
1672 if (time64) {
1673 if (host_to_target_timespec64(arg3, timeout_ts)) {
1674 return -TARGET_EFAULT;
1675 }
1676 } else {
1677 if (host_to_target_timespec(arg3, timeout_ts)) {
1678 return -TARGET_EFAULT;
1679 }
1680 }
1681 }
1682 if (arg4) {
1683 unlock_user(target_set, arg4, 0);
1684 }
1685 } else {
1686 struct timespec ts, *pts;
1687
1688 if (arg3 >= 0) {
1689 /* Convert ms to secs, ns */
1690 ts.tv_sec = arg3 / 1000;
1691 ts.tv_nsec = (arg3 % 1000) * 1000000LL;
1692 pts = &ts;
1693 } else {
1694 /* -ve poll() timeout means "infinite" */
1695 pts = NULL;
1696 }
1697 ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
1698 }
1699
1700 if (!is_error(ret)) {
1701 for (i = 0; i < nfds; i++) {
1702 target_pfd[i].revents = tswap16(pfd[i].revents);
1703 }
1704 }
1705 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
1706 return ret;
1707}
1708#endif
1709
099d6b0f
RV		 1710static abi_long do_pipe2(int host_pipe[], int flags)
1711{
1712#ifdef CONFIG_PIPE2
1713 return pipe2(host_pipe, flags);
1714#else
1715 return -ENOSYS;
1716#endif
1717}
1718
fb41a66e
RH		 1719static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1720 int flags, int is_pipe2)
099d6b0f
RV		 1721{
1722 int host_pipe[2];
1723 abi_long ret;
1724 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1725
1726 if (is_error(ret))
1727 return get_errno(ret);
fb41a66e
RH		 1728
1729 /* Several targets have special calling conventions for the original
1730 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1731 if (!is_pipe2) {
1732#if defined(TARGET_ALPHA)
1733 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1734 return host_pipe[0];
1735#elif defined(TARGET_MIPS)
1736 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1737 return host_pipe[0];
1738#elif defined(TARGET_SH4)
597c0212 1739 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1740 return host_pipe[0];
82f05b69
PM		 1741#elif defined(TARGET_SPARC)
1742 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1743 return host_pipe[0];
597c0212 1744#endif
fb41a66e
RH		 1745 }
1746
099d6b0f
RV		 1747 if (put_user_s32(host_pipe[0], pipedes)
1748 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1749 return -TARGET_EFAULT;
099d6b0f
RV		 1750 return get_errno(ret);
1751}
1752
b975b83b
LL		 1753static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1754 abi_ulong target_addr,
1755 socklen_t len)
1756{
1757 struct target_ip_mreqn *target_smreqn;
1758
1759 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1760 if (!target_smreqn)
1761 return -TARGET_EFAULT;
1762 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1763 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1764 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1765 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1766 unlock_user(target_smreqn, target_addr, 0);
1767
1768 return 0;
1769}
1770
7b36f782 1771static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
579a97f7
FB		 1772 abi_ulong target_addr,
1773 socklen_t len)
7854b056 1774{
607175e0
AJ		 1775 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1776 sa_family_t sa_family;
53a5960a
PB		 1777 struct target_sockaddr *target_saddr;
1778
7b36f782
LV		 1779 if (fd_trans_target_to_host_addr(fd)) {
1780 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1781 }
1782
579a97f7
FB		 1783 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1784 if (!target_saddr)
1785 return -TARGET_EFAULT;
607175e0
AJ		 1786
1787 sa_family = tswap16(target_saddr->sa_family);
1788
1789 /* Oops. The caller might send a incomplete sun_path; sun_path
1790 * must be terminated by \0 (see the manual page), but
1791 * unfortunately it is quite common to specify sockaddr_un
1792 * length as "strlen(x->sun_path)" while it should be
1793 * "strlen(...) + 1". We'll fix that here if needed.
1794 * Linux kernel has a similar feature.
1795 */
1796
1797 if (sa_family == AF_UNIX) {
1798 if (len < unix_maxlen && len > 0) {
1799 char *cp = (char*)target_saddr;
1800
1801 if ( cp[len-1] && !cp[len] )
1802 len++;
1803 }
1804 if (len > unix_maxlen)
1805 len = unix_maxlen;
1806 }
1807
53a5960a 1808 memcpy(addr, target_saddr, len);
607175e0 1809 addr->sa_family = sa_family;
6c5b5645
LV		 1810 if (sa_family == AF_NETLINK) {
1811 struct sockaddr_nl *nladdr;
1812
1813 nladdr = (struct sockaddr_nl *)addr;
1814 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1815 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1816 } else if (sa_family == AF_PACKET) {
33a29b51
JT		 1817 struct target_sockaddr_ll *lladdr;
1818
1819 lladdr = (struct target_sockaddr_ll *)addr;
1820 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1821 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1822 }
53a5960a 1823 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1824
1825 return 0;
7854b056
FB		 1826}
1827
579a97f7
FB		 1828static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1829 struct sockaddr *addr,
1830 socklen_t len)
7854b056 1831{
53a5960a
PB		 1832 struct target_sockaddr *target_saddr;
1833
a1e22192
PM		 1834 if (len == 0) {
1835 return 0;
1836 }
6860710c 1837 assert(addr);
a1e22192 1838
579a97f7
FB		 1839 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1840 if (!target_saddr)
1841 return -TARGET_EFAULT;
53a5960a 1842 memcpy(target_saddr, addr, len);
a1e22192
PM		 1843 if (len >= offsetof(struct target_sockaddr, sa_family) +
1844 sizeof(target_saddr->sa_family)) {
1845 target_saddr->sa_family = tswap16(addr->sa_family);
1846 }
a47401bc
PMD		 1847 if (addr->sa_family == AF_NETLINK &&
1848 len >= sizeof(struct target_sockaddr_nl)) {
1849 struct target_sockaddr_nl *target_nl =
1850 (struct target_sockaddr_nl *)target_saddr;
6c5b5645
LV		 1851 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1852 target_nl->nl_groups = tswap32(target_nl->nl_groups);
a82ea939
LV		 1853 } else if (addr->sa_family == AF_PACKET) {
1854 struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
1855 target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
1856 target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
ee1ac3a1
HD		 1857 } else if (addr->sa_family == AF_INET6 &&
1858 len >= sizeof(struct target_sockaddr_in6)) {
1859 struct target_sockaddr_in6 *target_in6 =
1860 (struct target_sockaddr_in6 *)target_saddr;
1861 target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
6c5b5645 1862 }
53a5960a 1863 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1864
1865 return 0;
7854b056
FB		 1866}
1867
5a4a898d
FB		 1868static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1869 struct target_msghdr *target_msgh)
7854b056
FB		 1870{
1871 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1872 abi_long msg_controllen;
1873 abi_ulong target_cmsg_addr;
ee104587 1874 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056 1875 socklen_t space = 0;
5a4a898d 1876
cbb21eed 1877 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1878 if (msg_controllen < sizeof (struct target_cmsghdr))
1879 goto the_end;
cbb21eed 1880 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1881 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
ee104587 1882 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1883 if (!target_cmsg)
1884 return -TARGET_EFAULT;
7854b056
FB		 1885
1886 while (cmsg && target_cmsg) {
1887 void *data = CMSG_DATA(cmsg);
1888 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1889
cbb21eed 1890 int len = tswapal(target_cmsg->cmsg_len)
ad762b99 1891 - sizeof(struct target_cmsghdr);
7854b056
FB		 1892
1893 space += CMSG_SPACE(len);
1894 if (space > msgh->msg_controllen) {
1895 space -= CMSG_SPACE(len);
c2aeb258
PM		 1896 /* This is a QEMU bug, since we allocated the payload
1897 * area ourselves (unlike overflow in host-to-target
1898 * conversion, which is just the guest giving us a buffer
1899 * that's too small). It can't happen for the payload types
1900 * we currently support; if it becomes an issue in future
1901 * we would need to improve our allocation strategy to
1902 * something more intelligent than "twice the size of the
1903 * target buffer we're reading from".
1904 */
39be5350
JK		 1905 qemu_log_mask(LOG_UNIMP,
1906 ("Unsupported ancillary data %d/%d: "
1907 "unhandled msg size\n"),
1908 tswap32(target_cmsg->cmsg_level),
1909 tswap32(target_cmsg->cmsg_type));
7854b056
FB		 1910 break;
1911 }
1912
dbf4f796
PJ		 1913 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1914 cmsg->cmsg_level = SOL_SOCKET;
1915 } else {
1916 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1917 }
7854b056
FB		 1918 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1919 cmsg->cmsg_len = CMSG_LEN(len);
1920
30b8b68e 1921 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
7854b056
FB		 1922 int *fd = (int *)data;
1923 int *target_fd = (int *)target_data;
1924 int i, numfds = len / sizeof(int);
1925
876e23cb
PM		 1926 for (i = 0; i < numfds; i++) {
1927 __get_user(fd[i], target_fd + i);
1928 }
30b8b68e
AS		 1929 } else if (cmsg->cmsg_level == SOL_SOCKET
1930 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1931 struct ucred *cred = (struct ucred *)data;
1932 struct target_ucred *target_cred =
1933 (struct target_ucred *)target_data;
1934
876e23cb
PM		 1935 __get_user(cred->pid, &target_cred->pid);
1936 __get_user(cred->uid, &target_cred->uid);
1937 __get_user(cred->gid, &target_cred->gid);
30b8b68e 1938 } else {
39be5350
JK		 1939 qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n",
1940 cmsg->cmsg_level, cmsg->cmsg_type);
30b8b68e 1941 memcpy(data, target_data, len);
7854b056
FB		 1942 }
1943
1944 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1945 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1946 target_cmsg_start);
7854b056 1947 }
5a4a898d
FB		 1948 unlock_user(target_cmsg, target_cmsg_addr, 0);
1949 the_end:
7854b056 1950 msgh->msg_controllen = space;
5a4a898d 1951 return 0;
7854b056
FB		 1952}
1953
5a4a898d
FB		 1954static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1955 struct msghdr *msgh)
7854b056
FB		 1956{
1957 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1958 abi_long msg_controllen;
1959 abi_ulong target_cmsg_addr;
ee104587 1960 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056
FB		 1961 socklen_t space = 0;
1962
cbb21eed 1963 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1964 if (msg_controllen < sizeof (struct target_cmsghdr))
1965 goto the_end;
cbb21eed 1966 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1967 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
ee104587 1968 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1969 if (!target_cmsg)
1970 return -TARGET_EFAULT;
1971
7854b056
FB		 1972 while (cmsg && target_cmsg) {
1973 void *data = CMSG_DATA(cmsg);
1974 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1975
ad762b99 1976 int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
c2aeb258 1977 int tgt_len, tgt_space;
7854b056 1978
c2aeb258
PM		 1979 /* We never copy a half-header but may copy half-data;
1980 * this is Linux's behaviour in put_cmsg(). Note that
1981 * truncation here is a guest problem (which we report
1982 * to the guest via the CTRUNC bit), unlike truncation
1983 * in target_to_host_cmsg, which is a QEMU bug.
1984 */
7174970a 1985 if (msg_controllen < sizeof(struct target_cmsghdr)) {
c2aeb258 1986 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7854b056
FB		 1987 break;
1988 }
1989
dbf4f796
PJ		 1990 if (cmsg->cmsg_level == SOL_SOCKET) {
1991 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1992 } else {
1993 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1994 }
7854b056 1995 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
7854b056 1996
c2aeb258
PM		 1997 /* Payload types which need a different size of payload on
1998 * the target must adjust tgt_len here.
1999 */
309786cf 2000 tgt_len = len;
c2aeb258
PM		 2001 switch (cmsg->cmsg_level) {
2002 case SOL_SOCKET:
2003 switch (cmsg->cmsg_type) {
2004 case SO_TIMESTAMP:
2005 tgt_len = sizeof(struct target_timeval);
2006 break;
2007 default:
2008 break;
2009 }
309786cf 2010 break;
c2aeb258
PM		 2011 default:
2012 break;
2013 }
2014
7174970a 2015 if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
c2aeb258 2016 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7174970a 2017 tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
c2aeb258
PM		 2018 }
2019
2020 /* We must now copy-and-convert len bytes of payload
2021 * into tgt_len bytes of destination space. Bear in mind
2022 * that in both source and destination we may be dealing
2023 * with a truncated value!
2024 */
52b65494
HD		 2025 switch (cmsg->cmsg_level) {
2026 case SOL_SOCKET:
2027 switch (cmsg->cmsg_type) {
2028 case SCM_RIGHTS:
2029 {
2030 int *fd = (int *)data;
2031 int *target_fd = (int *)target_data;
c2aeb258 2032 int i, numfds = tgt_len / sizeof(int);
52b65494 2033
876e23cb
PM		 2034 for (i = 0; i < numfds; i++) {
2035 __put_user(fd[i], target_fd + i);
2036 }
52b65494
HD		 2037 break;
2038 }
2039 case SO_TIMESTAMP:
2040 {
2041 struct timeval *tv = (struct timeval *)data;
2042 struct target_timeval *target_tv =
2043 (struct target_timeval *)target_data;
2044
c2aeb258
PM		 2045 if (len != sizeof(struct timeval) ||
2046 tgt_len != sizeof(struct target_timeval)) {
52b65494 2047 goto unimplemented;
c2aeb258 2048 }
52b65494
HD		 2049
2050 /* copy struct timeval to target */
876e23cb
PM		 2051 __put_user(tv->tv_sec, &target_tv->tv_sec);
2052 __put_user(tv->tv_usec, &target_tv->tv_usec);
52b65494
HD		 2053 break;
2054 }
4bc29756
HD		 2055 case SCM_CREDENTIALS:
2056 {
2057 struct ucred *cred = (struct ucred *)data;
2058 struct target_ucred *target_cred =
2059 (struct target_ucred *)target_data;
2060
2061 __put_user(cred->pid, &target_cred->pid);
2062 __put_user(cred->uid, &target_cred->uid);
2063 __put_user(cred->gid, &target_cred->gid);
2064 break;
2065 }
52b65494
HD		 2066 default:
2067 goto unimplemented;
2068 }
2069 break;
7854b056 2070
ee1ac3a1
HD		 2071 case SOL_IP:
2072 switch (cmsg->cmsg_type) {
2073 case IP_TTL:
2074 {
2075 uint32_t *v = (uint32_t *)data;
2076 uint32_t *t_int = (uint32_t *)target_data;
2077
7174970a
PM		 2078 if (len != sizeof(uint32_t) ||
2079 tgt_len != sizeof(uint32_t)) {
2080 goto unimplemented;
2081 }
ee1ac3a1
HD		 2082 __put_user(*v, t_int);
2083 break;
2084 }
2085 case IP_RECVERR:
2086 {
2087 struct errhdr_t {
2088 struct sock_extended_err ee;
2089 struct sockaddr_in offender;
2090 };
2091 struct errhdr_t *errh = (struct errhdr_t *)data;
2092 struct errhdr_t *target_errh =
2093 (struct errhdr_t *)target_data;
2094
7174970a
PM		 2095 if (len != sizeof(struct errhdr_t) ||
2096 tgt_len != sizeof(struct errhdr_t)) {
2097 goto unimplemented;
2098 }
ee1ac3a1
HD		 2099 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
2100 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
2101 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
2102 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
2103 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
2104 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
2105 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
2106 host_to_target_sockaddr((unsigned long) &target_errh->offender,
2107 (void *) &errh->offender, sizeof(errh->offender));
2108 break;
2109 }
2110 default:
2111 goto unimplemented;
2112 }
2113 break;
2114
2115 case SOL_IPV6:
2116 switch (cmsg->cmsg_type) {
2117 case IPV6_HOPLIMIT:
2118 {
2119 uint32_t *v = (uint32_t *)data;
2120 uint32_t *t_int = (uint32_t *)target_data;
2121
7174970a
PM		 2122 if (len != sizeof(uint32_t) ||
2123 tgt_len != sizeof(uint32_t)) {
2124 goto unimplemented;
2125 }
ee1ac3a1
HD		 2126 __put_user(*v, t_int);
2127 break;
2128 }
2129 case IPV6_RECVERR:
2130 {
2131 struct errhdr6_t {
2132 struct sock_extended_err ee;
2133 struct sockaddr_in6 offender;
2134 };
2135 struct errhdr6_t *errh = (struct errhdr6_t *)data;
2136 struct errhdr6_t *target_errh =
2137 (struct errhdr6_t *)target_data;
2138
7174970a
PM		 2139 if (len != sizeof(struct errhdr6_t) ||
2140 tgt_len != sizeof(struct errhdr6_t)) {
2141 goto unimplemented;
2142 }
ee1ac3a1
HD		 2143 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
2144 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
2145 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
2146 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
2147 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
2148 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
2149 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
2150 host_to_target_sockaddr((unsigned long) &target_errh->offender,
2151 (void *) &errh->offender, sizeof(errh->offender));
2152 break;
2153 }
2154 default:
2155 goto unimplemented;
2156 }
2157 break;
2158
52b65494
HD		 2159 default:
2160 unimplemented:
39be5350
JK		 2161 qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n",
2162 cmsg->cmsg_level, cmsg->cmsg_type);
c2aeb258
PM		 2163 memcpy(target_data, data, MIN(len, tgt_len));
2164 if (tgt_len > len) {
2165 memset(target_data + len, 0, tgt_len - len);
2166 }
7854b056
FB		 2167 }
2168
7174970a
PM		 2169 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
2170 tgt_space = TARGET_CMSG_SPACE(tgt_len);
c2aeb258
PM		 2171 if (msg_controllen < tgt_space) {
2172 tgt_space = msg_controllen;
2173 }
2174 msg_controllen -= tgt_space;
2175 space += tgt_space;
7854b056 2176 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 2177 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
2178 target_cmsg_start);
7854b056 2179 }
5a4a898d
FB		 2180 unlock_user(target_cmsg, target_cmsg_addr, space);
2181 the_end:
cbb21eed 2182 target_msgh->msg_controllen = tswapal(space);
5a4a898d 2183 return 0;
7854b056
FB		 2184}
2185
0da46a6e 2186/* do_setsockopt() Must return target values and target errnos. */
992f48a0 2187static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 2188 abi_ulong optval_addr, socklen_t optlen)
7854b056 2189{
992f48a0 2190 abi_long ret;
32407103 2191 int val;
b975b83b 2192 struct ip_mreqn *ip_mreq;
6e3cb58f 2193 struct ip_mreq_source *ip_mreq_source;
3b46e624 2194
8853f86e
FB		 2195 switch(level) {
2196 case SOL_TCP:
fe51b0a5
SCW		 2197 case SOL_UDP:
2198 /* TCP and UDP options all take an 'int' value. */
7854b056 2199 if (optlen < sizeof(uint32_t))
0da46a6e 2200 return -TARGET_EINVAL;
3b46e624 2201
2f619698
FB		 2202 if (get_user_u32(val, optval_addr))
2203 return -TARGET_EFAULT;
8853f86e
FB		 2204 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
2205 break;
2206 case SOL_IP:
2207 switch(optname) {
2efbe911
FB		 2208 case IP_TOS:
2209 case IP_TTL:
8853f86e 2210 case IP_HDRINCL:
2efbe911
FB		 2211 case IP_ROUTER_ALERT:
2212 case IP_RECVOPTS:
2213 case IP_RETOPTS:
2214 case IP_PKTINFO:
2215 case IP_MTU_DISCOVER:
2216 case IP_RECVERR:
ee1ac3a1 2217 case IP_RECVTTL:
2efbe911
FB		 2218 case IP_RECVTOS:
2219#ifdef IP_FREEBIND
2220 case IP_FREEBIND:
2221#endif
2222 case IP_MULTICAST_TTL:
2223 case IP_MULTICAST_LOOP:
8853f86e
FB		 2224 val = 0;
2225 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 2226 if (get_user_u32(val, optval_addr))
2227 return -TARGET_EFAULT;
8853f86e 2228 } else if (optlen >= 1) {
2f619698
FB		 2229 if (get_user_u8(val, optval_addr))
2230 return -TARGET_EFAULT;
8853f86e
FB		 2231 }
2232 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
2233 break;
b975b83b
LL		 2234 case IP_ADD_MEMBERSHIP:
2235 case IP_DROP_MEMBERSHIP:
2236 if (optlen < sizeof (struct target_ip_mreq) ||
2237 optlen > sizeof (struct target_ip_mreqn))
2238 return -TARGET_EINVAL;
2239
2240 ip_mreq = (struct ip_mreqn *) alloca(optlen);
2241 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
2242 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
2243 break;
2244
6e3cb58f
LL		 2245 case IP_BLOCK_SOURCE:
2246 case IP_UNBLOCK_SOURCE:
2247 case IP_ADD_SOURCE_MEMBERSHIP:
2248 case IP_DROP_SOURCE_MEMBERSHIP:
2249 if (optlen != sizeof (struct target_ip_mreq_source))
2250 return -TARGET_EINVAL;
2251
2252 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2253 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
2254 unlock_user (ip_mreq_source, optval_addr, 0);
2255 break;
2256
920394db
JH		 2257 default:
2258 goto unimplemented;
2259 }
2260 break;
0d78b3b5
LV		 2261 case SOL_IPV6:
2262 switch (optname) {
2263 case IPV6_MTU_DISCOVER:
2264 case IPV6_MTU:
2265 case IPV6_V6ONLY:
2266 case IPV6_RECVPKTINFO:
ee1ac3a1 2267 case IPV6_UNICAST_HOPS:
21749c4c
LV		 2268 case IPV6_MULTICAST_HOPS:
2269 case IPV6_MULTICAST_LOOP:
ee1ac3a1
HD		 2270 case IPV6_RECVERR:
2271 case IPV6_RECVHOPLIMIT:
2272 case IPV6_2292HOPLIMIT:
2273 case IPV6_CHECKSUM:
b9cce6d7
HD		 2274 case IPV6_ADDRFORM:
2275 case IPV6_2292PKTINFO:
2276 case IPV6_RECVTCLASS:
2277 case IPV6_RECVRTHDR:
2278 case IPV6_2292RTHDR:
2279 case IPV6_RECVHOPOPTS:
2280 case IPV6_2292HOPOPTS:
2281 case IPV6_RECVDSTOPTS:
2282 case IPV6_2292DSTOPTS:
2283 case IPV6_TCLASS:
22db1213 2284 case IPV6_ADDR_PREFERENCES:
b9cce6d7
HD		 2285#ifdef IPV6_RECVPATHMTU
2286 case IPV6_RECVPATHMTU:
2287#endif
2288#ifdef IPV6_TRANSPARENT
2289 case IPV6_TRANSPARENT:
2290#endif
2291#ifdef IPV6_FREEBIND
2292 case IPV6_FREEBIND:
2293#endif
2294#ifdef IPV6_RECVORIGDSTADDR
2295 case IPV6_RECVORIGDSTADDR:
2296#endif
0d78b3b5
LV		 2297 val = 0;
2298 if (optlen < sizeof(uint32_t)) {
2299 return -TARGET_EINVAL;
2300 }
2301 if (get_user_u32(val, optval_addr)) {
2302 return -TARGET_EFAULT;
2303 }
2304 ret = get_errno(setsockopt(sockfd, level, optname,
2305 &val, sizeof(val)));
2306 break;
ee1ac3a1
HD		 2307 case IPV6_PKTINFO:
2308 {
2309 struct in6_pktinfo pki;
2310
2311 if (optlen < sizeof(pki)) {
2312 return -TARGET_EINVAL;
2313 }
2314
2315 if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
2316 return -TARGET_EFAULT;
2317 }
2318
2319 pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
2320
2321 ret = get_errno(setsockopt(sockfd, level, optname,
2322 &pki, sizeof(pki)));
2323 break;
2324 }
22bf4ee9
NC		 2325 case IPV6_ADD_MEMBERSHIP:
2326 case IPV6_DROP_MEMBERSHIP:
2327 {
2328 struct ipv6_mreq ipv6mreq;
2329
2330 if (optlen < sizeof(ipv6mreq)) {
2331 return -TARGET_EINVAL;
2332 }
2333
2334 if (copy_from_user(&ipv6mreq, optval_addr, sizeof(ipv6mreq))) {
2335 return -TARGET_EFAULT;
2336 }
2337
2338 ipv6mreq.ipv6mr_interface = tswap32(ipv6mreq.ipv6mr_interface);
2339
2340 ret = get_errno(setsockopt(sockfd, level, optname,
2341 &ipv6mreq, sizeof(ipv6mreq)));
2342 break;
2343 }
ee1ac3a1
HD		 2344 default:
2345 goto unimplemented;
2346 }
2347 break;
2348 case SOL_ICMPV6:
2349 switch (optname) {
2350 case ICMPV6_FILTER:
2351 {
2352 struct icmp6_filter icmp6f;
2353
2354 if (optlen > sizeof(icmp6f)) {
2355 optlen = sizeof(icmp6f);
2356 }
2357
2358 if (copy_from_user(&icmp6f, optval_addr, optlen)) {
2359 return -TARGET_EFAULT;
2360 }
2361
2362 for (val = 0; val < 8; val++) {
2363 icmp6f.data[val] = tswap32(icmp6f.data[val]);
2364 }
2365
2366 ret = get_errno(setsockopt(sockfd, level, optname,
2367 &icmp6f, optlen));
2368 break;
2369 }
0d78b3b5
LV		 2370 default:
2371 goto unimplemented;
2372 }
2373 break;
920394db
JH		 2374 case SOL_RAW:
2375 switch (optname) {
2376 case ICMP_FILTER:
ee1ac3a1
HD		 2377 case IPV6_CHECKSUM:
2378 /* those take an u32 value */
920394db
JH		 2379 if (optlen < sizeof(uint32_t)) {
2380 return -TARGET_EINVAL;
2381 }
2382
2383 if (get_user_u32(val, optval_addr)) {
2384 return -TARGET_EFAULT;
2385 }
2386 ret = get_errno(setsockopt(sockfd, level, optname,
2387 &val, sizeof(val)));
2388 break;
2389
8853f86e
FB		 2390 default:
2391 goto unimplemented;
2392 }
2393 break;
f31dddd2
YS		 2394#if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE)
2395 case SOL_ALG:
2396 switch (optname) {
2397 case ALG_SET_KEY:
2398 {
2399 char *alg_key = g_malloc(optlen);
2400
2401 if (!alg_key) {
2402 return -TARGET_ENOMEM;
2403 }
2404 if (copy_from_user(alg_key, optval_addr, optlen)) {
2405 g_free(alg_key);
2406 return -TARGET_EFAULT;
2407 }
2408 ret = get_errno(setsockopt(sockfd, level, optname,
2409 alg_key, optlen));
2410 g_free(alg_key);
2411 break;
2412 }
2413 case ALG_SET_AEAD_AUTHSIZE:
2414 {
2415 ret = get_errno(setsockopt(sockfd, level, optname,
2416 NULL, optlen));
2417 break;
2418 }
2419 default:
2420 goto unimplemented;
2421 }
2422 break;
2423#endif
3532fa74 2424 case TARGET_SOL_SOCKET:
8853f86e 2425 switch (optname) {
1b09aeb9
LV		 2426 case TARGET_SO_RCVTIMEO:
2427 {
2428 struct timeval tv;
2429
2430 optname = SO_RCVTIMEO;
2431
2432set_timeout:
2433 if (optlen != sizeof(struct target_timeval)) {
2434 return -TARGET_EINVAL;
2435 }
2436
2437 if (copy_from_user_timeval(&tv, optval_addr)) {
2438 return -TARGET_EFAULT;
2439 }
2440
2441 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2442 &tv, sizeof(tv)));
2443 return ret;
2444 }
2445 case TARGET_SO_SNDTIMEO:
2446 optname = SO_SNDTIMEO;
2447 goto set_timeout;
f57d4192
LV		 2448 case TARGET_SO_ATTACH_FILTER:
2449 {
2450 struct target_sock_fprog *tfprog;
2451 struct target_sock_filter *tfilter;
2452 struct sock_fprog fprog;
2453 struct sock_filter *filter;
2454 int i;
2455
2456 if (optlen != sizeof(*tfprog)) {
2457 return -TARGET_EINVAL;
2458 }
2459 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
2460 return -TARGET_EFAULT;
2461 }
2462 if (!lock_user_struct(VERIFY_READ, tfilter,
2463 tswapal(tfprog->filter), 0)) {
2464 unlock_user_struct(tfprog, optval_addr, 1);
2465 return -TARGET_EFAULT;
2466 }
2467
2468 fprog.len = tswap16(tfprog->len);
0e173b24 2469 filter = g_try_new(struct sock_filter, fprog.len);
f57d4192
LV		 2470 if (filter == NULL) {
2471 unlock_user_struct(tfilter, tfprog->filter, 1);
2472 unlock_user_struct(tfprog, optval_addr, 1);
2473 return -TARGET_ENOMEM;
2474 }
2475 for (i = 0; i < fprog.len; i++) {
2476 filter[i].code = tswap16(tfilter[i].code);
2477 filter[i].jt = tfilter[i].jt;
2478 filter[i].jf = tfilter[i].jf;
2479 filter[i].k = tswap32(tfilter[i].k);
2480 }
2481 fprog.filter = filter;
2482
2483 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2484 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
0e173b24 2485 g_free(filter);
f57d4192
LV		 2486
2487 unlock_user_struct(tfilter, tfprog->filter, 1);
2488 unlock_user_struct(tfprog, optval_addr, 1);
2489 return ret;
2490 }
451aaf68
JT		 2491 case TARGET_SO_BINDTODEVICE:
2492 {
2493 char *dev_ifname, *addr_ifname;
2494
2495 if (optlen > IFNAMSIZ - 1) {
2496 optlen = IFNAMSIZ - 1;
2497 }
2498 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2499 if (!dev_ifname) {
2500 return -TARGET_EFAULT;
2501 }
2502 optname = SO_BINDTODEVICE;
2503 addr_ifname = alloca(IFNAMSIZ);
2504 memcpy(addr_ifname, dev_ifname, optlen);
2505 addr_ifname[optlen] = 0;
fad6c58a
CG		 2506 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2507 addr_ifname, optlen));
451aaf68
JT		 2508 unlock_user (dev_ifname, optval_addr, 0);
2509 return ret;
2510 }
83eb6e50
CMAB		 2511 case TARGET_SO_LINGER:
2512 {
2513 struct linger lg;
2514 struct target_linger *tlg;
2515
2516 if (optlen != sizeof(struct target_linger)) {
2517 return -TARGET_EINVAL;
2518 }
2519 if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
2520 return -TARGET_EFAULT;
2521 }
2522 __get_user(lg.l_onoff, &tlg->l_onoff);
2523 __get_user(lg.l_linger, &tlg->l_linger);
2524 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
2525 &lg, sizeof(lg)));
2526 unlock_user_struct(tlg, optval_addr, 0);
2527 return ret;
2528 }
8853f86e 2529 /* Options with 'int' argument. */
3532fa74
FB		 2530 case TARGET_SO_DEBUG:
2531 optname = SO_DEBUG;
2532 break;
2533 case TARGET_SO_REUSEADDR:
2534 optname = SO_REUSEADDR;
2535 break;
113a9dd7
YS		 2536#ifdef SO_REUSEPORT
2537 case TARGET_SO_REUSEPORT:
2538 optname = SO_REUSEPORT;
2539 break;
2540#endif
3532fa74
FB		 2541 case TARGET_SO_TYPE:
2542 optname = SO_TYPE;
2543 break;
2544 case TARGET_SO_ERROR:
2545 optname = SO_ERROR;
2546 break;
2547 case TARGET_SO_DONTROUTE:
2548 optname = SO_DONTROUTE;
2549 break;
2550 case TARGET_SO_BROADCAST:
2551 optname = SO_BROADCAST;
2552 break;
2553 case TARGET_SO_SNDBUF:
2554 optname = SO_SNDBUF;
2555 break;
d79b6cc4
PB		 2556 case TARGET_SO_SNDBUFFORCE:
2557 optname = SO_SNDBUFFORCE;
2558 break;
3532fa74
FB		 2559 case TARGET_SO_RCVBUF:
2560 optname = SO_RCVBUF;
2561 break;
d79b6cc4
PB		 2562 case TARGET_SO_RCVBUFFORCE:
2563 optname = SO_RCVBUFFORCE;
2564 break;
3532fa74
FB		 2565 case TARGET_SO_KEEPALIVE:
2566 optname = SO_KEEPALIVE;
2567 break;
2568 case TARGET_SO_OOBINLINE:
2569 optname = SO_OOBINLINE;
2570 break;
2571 case TARGET_SO_NO_CHECK:
2572 optname = SO_NO_CHECK;
2573 break;
2574 case TARGET_SO_PRIORITY:
2575 optname = SO_PRIORITY;
2576 break;
5e83e8e3 2577#ifdef SO_BSDCOMPAT
3532fa74
FB		 2578 case TARGET_SO_BSDCOMPAT:
2579 optname = SO_BSDCOMPAT;
2580 break;
5e83e8e3 2581#endif
3532fa74
FB		 2582 case TARGET_SO_PASSCRED:
2583 optname = SO_PASSCRED;
2584 break;
82d0fe6b
PB		 2585 case TARGET_SO_PASSSEC:
2586 optname = SO_PASSSEC;
2587 break;
3532fa74
FB		 2588 case TARGET_SO_TIMESTAMP:
2589 optname = SO_TIMESTAMP;
2590 break;
2591 case TARGET_SO_RCVLOWAT:
2592 optname = SO_RCVLOWAT;
2593 break;
8853f86e
FB		 2594 default:
2595 goto unimplemented;
2596 }
3532fa74 2597 if (optlen < sizeof(uint32_t))
2f619698 2598 return -TARGET_EINVAL;
3532fa74 2599
2f619698
FB		 2600 if (get_user_u32(val, optval_addr))
2601 return -TARGET_EFAULT;
3532fa74 2602 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 2603 break;
a2d86682
JK		 2604#ifdef SOL_NETLINK
2605 case SOL_NETLINK:
2606 switch (optname) {
2607 case NETLINK_PKTINFO:
2608 case NETLINK_ADD_MEMBERSHIP:
2609 case NETLINK_DROP_MEMBERSHIP:
2610 case NETLINK_BROADCAST_ERROR:
2611 case NETLINK_NO_ENOBUFS:
2612#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
2613 case NETLINK_LISTEN_ALL_NSID:
2614 case NETLINK_CAP_ACK:
2615#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
2616#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
2617 case NETLINK_EXT_ACK:
2618#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2619#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
2620 case NETLINK_GET_STRICT_CHK:
2621#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2622 break;
2623 default:
2624 goto unimplemented;
2625 }
2626 val = 0;
2627 if (optlen < sizeof(uint32_t)) {
2628 return -TARGET_EINVAL;
2629 }
2630 if (get_user_u32(val, optval_addr)) {
2631 return -TARGET_EFAULT;
2632 }
2633 ret = get_errno(setsockopt(sockfd, SOL_NETLINK, optname, &val,
2634 sizeof(val)));
2635 break;
2636#endif /* SOL_NETLINK */
7854b056 2637 default:
8853f86e 2638 unimplemented:
39be5350
JK		 2639 qemu_log_mask(LOG_UNIMP, "Unsupported setsockopt level=%d optname=%d\n",
2640 level, optname);
6fa13c17 2641 ret = -TARGET_ENOPROTOOPT;
7854b056 2642 }
8853f86e 2643 return ret;
7854b056
FB		 2644}
2645
0da46a6e 2646/* do_getsockopt() Must return target values and target errnos. */
992f48a0 2647static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 2648 abi_ulong optval_addr, abi_ulong optlen)
7854b056 2649{
992f48a0 2650 abi_long ret;
b55266b5
BS		 2651 int len, val;
2652 socklen_t lv;
8853f86e
FB		 2653
2654 switch(level) {
3532fa74 2655 case TARGET_SOL_SOCKET:
f3b974cd
JL		 2656 level = SOL_SOCKET;
2657 switch (optname) {
2658 /* These don't just return a single integer */
f3b974cd
JL		 2659 case TARGET_SO_PEERNAME:
2660 goto unimplemented;
405dc4cf
AS		 2661 case TARGET_SO_RCVTIMEO: {
2662 struct timeval tv;
2663 socklen_t tvlen;
2664
2665 optname = SO_RCVTIMEO;
2666
2667get_timeout:
2668 if (get_user_u32(len, optlen)) {
2669 return -TARGET_EFAULT;
2670 }
2671 if (len < 0) {
2672 return -TARGET_EINVAL;
2673 }
2674
2675 tvlen = sizeof(tv);
2676 ret = get_errno(getsockopt(sockfd, level, optname,
2677 &tv, &tvlen));
2678 if (ret < 0) {
2679 return ret;
2680 }
2681 if (len > sizeof(struct target_timeval)) {
2682 len = sizeof(struct target_timeval);
2683 }
2684 if (copy_to_user_timeval(optval_addr, &tv)) {
2685 return -TARGET_EFAULT;
2686 }
2687 if (put_user_u32(len, optlen)) {
2688 return -TARGET_EFAULT;
2689 }
2690 break;
2691 }
2692 case TARGET_SO_SNDTIMEO:
2693 optname = SO_SNDTIMEO;
2694 goto get_timeout;
583359a6
AP		 2695 case TARGET_SO_PEERCRED: {
2696 struct ucred cr;
2697 socklen_t crlen;
2698 struct target_ucred *tcr;
2699
2700 if (get_user_u32(len, optlen)) {
2701 return -TARGET_EFAULT;
2702 }
2703 if (len < 0) {
2704 return -TARGET_EINVAL;
2705 }
2706
2707 crlen = sizeof(cr);
2708 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2709 &cr, &crlen));
2710 if (ret < 0) {
2711 return ret;
2712 }
2713 if (len > crlen) {
2714 len = crlen;
2715 }
2716 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2717 return -TARGET_EFAULT;
2718 }
2719 __put_user(cr.pid, &tcr->pid);
2720 __put_user(cr.uid, &tcr->uid);
2721 __put_user(cr.gid, &tcr->gid);
2722 unlock_user_struct(tcr, optval_addr, 1);
2723 if (put_user_u32(len, optlen)) {
83eb6e50
CMAB		 2724 return -TARGET_EFAULT;
2725 }
2726 break;
2727 }
6d485a55
LV		 2728 case TARGET_SO_PEERSEC: {
2729 char *name;
2730
2731 if (get_user_u32(len, optlen)) {
2732 return -TARGET_EFAULT;
2733 }
2734 if (len < 0) {
2735 return -TARGET_EINVAL;
2736 }
2737 name = lock_user(VERIFY_WRITE, optval_addr, len, 0);
2738 if (!name) {
2739 return -TARGET_EFAULT;
2740 }
2741 lv = len;
2742 ret = get_errno(getsockopt(sockfd, level, SO_PEERSEC,
2743 name, &lv));
2744 if (put_user_u32(lv, optlen)) {
2745 ret = -TARGET_EFAULT;
2746 }
2747 unlock_user(name, optval_addr, lv);
2748 break;
2749 }
83eb6e50
CMAB		 2750 case TARGET_SO_LINGER:
2751 {
2752 struct linger lg;
2753 socklen_t lglen;
2754 struct target_linger *tlg;
2755
2756 if (get_user_u32(len, optlen)) {
2757 return -TARGET_EFAULT;
2758 }
2759 if (len < 0) {
2760 return -TARGET_EINVAL;
2761 }
2762
2763 lglen = sizeof(lg);
2764 ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
2765 &lg, &lglen));
2766 if (ret < 0) {
2767 return ret;
2768 }
2769 if (len > lglen) {
2770 len = lglen;
2771 }
2772 if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
2773 return -TARGET_EFAULT;
2774 }
2775 __put_user(lg.l_onoff, &tlg->l_onoff);
2776 __put_user(lg.l_linger, &tlg->l_linger);
2777 unlock_user_struct(tlg, optval_addr, 1);
2778 if (put_user_u32(len, optlen)) {
583359a6
AP		 2779 return -TARGET_EFAULT;
2780 }
2781 break;
2782 }
f3b974cd
JL		 2783 /* Options with 'int' argument. */
2784 case TARGET_SO_DEBUG:
2785 optname = SO_DEBUG;
2786 goto int_case;
2787 case TARGET_SO_REUSEADDR:
2788 optname = SO_REUSEADDR;
2789 goto int_case;
113a9dd7
YS		 2790#ifdef SO_REUSEPORT
2791 case TARGET_SO_REUSEPORT:
2792 optname = SO_REUSEPORT;
2793 goto int_case;
2794#endif
f3b974cd
JL		 2795 case TARGET_SO_TYPE:
2796 optname = SO_TYPE;
2797 goto int_case;
2798 case TARGET_SO_ERROR:
2799 optname = SO_ERROR;
2800 goto int_case;
2801 case TARGET_SO_DONTROUTE:
2802 optname = SO_DONTROUTE;
2803 goto int_case;
2804 case TARGET_SO_BROADCAST:
2805 optname = SO_BROADCAST;
2806 goto int_case;
2807 case TARGET_SO_SNDBUF:
2808 optname = SO_SNDBUF;
2809 goto int_case;
2810 case TARGET_SO_RCVBUF:
2811 optname = SO_RCVBUF;
2812 goto int_case;
2813 case TARGET_SO_KEEPALIVE:
2814 optname = SO_KEEPALIVE;
2815 goto int_case;
2816 case TARGET_SO_OOBINLINE:
2817 optname = SO_OOBINLINE;
2818 goto int_case;
2819 case TARGET_SO_NO_CHECK:
2820 optname = SO_NO_CHECK;
2821 goto int_case;
2822 case TARGET_SO_PRIORITY:
2823 optname = SO_PRIORITY;
2824 goto int_case;
2825#ifdef SO_BSDCOMPAT
2826 case TARGET_SO_BSDCOMPAT:
2827 optname = SO_BSDCOMPAT;
2828 goto int_case;
2829#endif
2830 case TARGET_SO_PASSCRED:
2831 optname = SO_PASSCRED;
2832 goto int_case;
2833 case TARGET_SO_TIMESTAMP:
2834 optname = SO_TIMESTAMP;
2835 goto int_case;
2836 case TARGET_SO_RCVLOWAT:
2837 optname = SO_RCVLOWAT;
2838 goto int_case;
aec1ca41
PB		 2839 case TARGET_SO_ACCEPTCONN:
2840 optname = SO_ACCEPTCONN;
2841 goto int_case;
ec63e06e
JD		 2842 case TARGET_SO_PROTOCOL:
2843 optname = SO_PROTOCOL;
2844 goto int_case;
2845 case TARGET_SO_DOMAIN:
2846 optname = SO_DOMAIN;
2847 goto int_case;
8853f86e 2848 default:
2efbe911
FB		 2849 goto int_case;
2850 }
2851 break;
2852 case SOL_TCP:
fe51b0a5
SCW		 2853 case SOL_UDP:
2854 /* TCP and UDP options all take an 'int' value. */
2efbe911 2855 int_case:
2f619698
FB		 2856 if (get_user_u32(len, optlen))
2857 return -TARGET_EFAULT;
2efbe911 2858 if (len < 0)
0da46a6e 2859 return -TARGET_EINVAL;
73160d95 2860 lv = sizeof(lv);
2efbe911
FB		 2861 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2862 if (ret < 0)
2863 return ret;
8289d112
PB		 2864 if (optname == SO_TYPE) {
2865 val = host_to_target_sock_type(val);
2866 }
2efbe911
FB		 2867 if (len > lv)
2868 len = lv;
2f619698
FB		 2869 if (len == 4) {
2870 if (put_user_u32(val, optval_addr))
2871 return -TARGET_EFAULT;
2872 } else {
2873 if (put_user_u8(val, optval_addr))
2874 return -TARGET_EFAULT;
f3b974cd 2875 }
2f619698
FB		 2876 if (put_user_u32(len, optlen))
2877 return -TARGET_EFAULT;
2efbe911
FB		 2878 break;
2879 case SOL_IP:
2880 switch(optname) {
2881 case IP_TOS:
2882 case IP_TTL:
2883 case IP_HDRINCL:
2884 case IP_ROUTER_ALERT:
2885 case IP_RECVOPTS:
2886 case IP_RETOPTS:
2887 case IP_PKTINFO:
2888 case IP_MTU_DISCOVER:
2889 case IP_RECVERR:
2890 case IP_RECVTOS:
2891#ifdef IP_FREEBIND
2892 case IP_FREEBIND:
2893#endif
2894 case IP_MULTICAST_TTL:
2895 case IP_MULTICAST_LOOP:
2f619698
FB		 2896 if (get_user_u32(len, optlen))
2897 return -TARGET_EFAULT;
8853f86e 2898 if (len < 0)
0da46a6e 2899 return -TARGET_EINVAL;
73160d95 2900 lv = sizeof(lv);
8853f86e
FB		 2901 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2902 if (ret < 0)
2903 return ret;
2efbe911 2904 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 2905 len = 1;
2f619698
FB		 2906 if (put_user_u32(len, optlen)
2907 || put_user_u8(val, optval_addr))
2908 return -TARGET_EFAULT;
2efbe911 2909 } else {
2efbe911
FB		 2910 if (len > sizeof(int))
2911 len = sizeof(int);
2f619698
FB		 2912 if (put_user_u32(len, optlen)
2913 || put_user_u32(val, optval_addr))
2914 return -TARGET_EFAULT;
2efbe911 2915 }
8853f86e 2916 break;
2efbe911 2917 default:
c02f499e
TS		 2918 ret = -TARGET_ENOPROTOOPT;
2919 break;
8853f86e
FB		 2920 }
2921 break;
bd8ed485
TD		 2922 case SOL_IPV6:
2923 switch (optname) {
2924 case IPV6_MTU_DISCOVER:
2925 case IPV6_MTU:
2926 case IPV6_V6ONLY:
2927 case IPV6_RECVPKTINFO:
2928 case IPV6_UNICAST_HOPS:
2929 case IPV6_MULTICAST_HOPS:
2930 case IPV6_MULTICAST_LOOP:
2931 case IPV6_RECVERR:
2932 case IPV6_RECVHOPLIMIT:
2933 case IPV6_2292HOPLIMIT:
2934 case IPV6_CHECKSUM:
b9cce6d7
HD		 2935 case IPV6_ADDRFORM:
2936 case IPV6_2292PKTINFO:
2937 case IPV6_RECVTCLASS:
2938 case IPV6_RECVRTHDR:
2939 case IPV6_2292RTHDR:
2940 case IPV6_RECVHOPOPTS:
2941 case IPV6_2292HOPOPTS:
2942 case IPV6_RECVDSTOPTS:
2943 case IPV6_2292DSTOPTS:
2944 case IPV6_TCLASS:
22db1213 2945 case IPV6_ADDR_PREFERENCES:
b9cce6d7
HD		 2946#ifdef IPV6_RECVPATHMTU
2947 case IPV6_RECVPATHMTU:
2948#endif
2949#ifdef IPV6_TRANSPARENT
2950 case IPV6_TRANSPARENT:
2951#endif
2952#ifdef IPV6_FREEBIND
2953 case IPV6_FREEBIND:
2954#endif
2955#ifdef IPV6_RECVORIGDSTADDR
2956 case IPV6_RECVORIGDSTADDR:
2957#endif
bd8ed485
TD		 2958 if (get_user_u32(len, optlen))
2959 return -TARGET_EFAULT;
2960 if (len < 0)
2961 return -TARGET_EINVAL;
2962 lv = sizeof(lv);
2963 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2964 if (ret < 0)
2965 return ret;
2966 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2967 len = 1;
2968 if (put_user_u32(len, optlen)
2969 || put_user_u8(val, optval_addr))
2970 return -TARGET_EFAULT;
2971 } else {
2972 if (len > sizeof(int))
2973 len = sizeof(int);
2974 if (put_user_u32(len, optlen)
2975 || put_user_u32(val, optval_addr))
2976 return -TARGET_EFAULT;
2977 }
2978 break;
2979 default:
2980 ret = -TARGET_ENOPROTOOPT;
2981 break;
2982 }
2983 break;
a2d86682
JK		 2984#ifdef SOL_NETLINK
2985 case SOL_NETLINK:
2986 switch (optname) {
2987 case NETLINK_PKTINFO:
2988 case NETLINK_BROADCAST_ERROR:
2989 case NETLINK_NO_ENOBUFS:
2990#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
2991 case NETLINK_LISTEN_ALL_NSID:
2992 case NETLINK_CAP_ACK:
2993#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
2994#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
2995 case NETLINK_EXT_ACK:
2996#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2997#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
2998 case NETLINK_GET_STRICT_CHK:
2999#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
3000 if (get_user_u32(len, optlen)) {
3001 return -TARGET_EFAULT;
3002 }
3003 if (len != sizeof(val)) {
3004 return -TARGET_EINVAL;
3005 }
3006 lv = len;
3007 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
3008 if (ret < 0) {
3009 return ret;
3010 }
3011 if (put_user_u32(lv, optlen)
3012 || put_user_u32(val, optval_addr)) {
3013 return -TARGET_EFAULT;
3014 }
3015 break;
3016#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
3017 case NETLINK_LIST_MEMBERSHIPS:
3018 {
3019 uint32_t *results;
3020 int i;
3021 if (get_user_u32(len, optlen)) {
3022 return -TARGET_EFAULT;
3023 }
3024 if (len < 0) {
3025 return -TARGET_EINVAL;
3026 }
3027 results = lock_user(VERIFY_WRITE, optval_addr, len, 1);
3028 if (!results) {
3029 return -TARGET_EFAULT;
3030 }
3031 lv = len;
3032 ret = get_errno(getsockopt(sockfd, level, optname, results, &lv));
3033 if (ret < 0) {
3034 unlock_user(results, optval_addr, 0);
3035 return ret;
3036 }
3037 /* swap host endianess to target endianess. */
3038 for (i = 0; i < (len / sizeof(uint32_t)); i++) {
3039 results[i] = tswap32(results[i]);
3040 }
3041 if (put_user_u32(lv, optlen)) {
3042 return -TARGET_EFAULT;
3043 }
3044 unlock_user(results, optval_addr, 0);
3045 break;
3046 }
3047#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
3048 default:
3049 goto unimplemented;
3050 }
c0cb8801 3051 break;
a2d86682 3052#endif /* SOL_NETLINK */
8853f86e
FB		 3053 default:
3054 unimplemented:
39be5350
JK		 3055 qemu_log_mask(LOG_UNIMP,
3056 "getsockopt level=%d optname=%d not yet supported\n",
3057 level, optname);
c02f499e 3058 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 3059 break;
3060 }
3061 return ret;
7854b056
FB		 3062}
3063
9ac22517
MF		 3064/* Convert target low/high pair representing file offset into the host
3065 * low/high pair. This function doesn't handle offsets bigger than 64 bits
3066 * as the kernel doesn't handle them either.
3067 */
3068static void target_to_host_low_high(abi_ulong tlow,
3069 abi_ulong thigh,
3070 unsigned long *hlow,
3071 unsigned long *hhigh)
3072{
3073 uint64_t off = tlow |
3074 ((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
3075 TARGET_LONG_BITS / 2;
3076
3077 *hlow = off;
3078 *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
3079}
3080
f287b2c2 3081static struct iovec *lock_iovec(int type, abi_ulong target_addr,
dab32b32 3082 abi_ulong count, int copy)
53a5960a
PB		 3083{
3084 struct target_iovec *target_vec;
f287b2c2
RH		 3085 struct iovec *vec;
3086 abi_ulong total_len, max_len;
d732dcb4 3087 int i;
501bb4b0 3088 int err = 0;
29560a6c 3089 bool bad_address = false;
53a5960a 3090
f287b2c2
RH		 3091 if (count == 0) {
3092 errno = 0;
3093 return NULL;
3094 }
dab32b32 3095 if (count > IOV_MAX) {
f287b2c2
RH		 3096 errno = EINVAL;
3097 return NULL;
3098 }
3099
0e173b24 3100 vec = g_try_new0(struct iovec, count);
f287b2c2
RH		 3101 if (vec == NULL) {
3102 errno = ENOMEM;
3103 return NULL;
3104 }
3105
3106 target_vec = lock_user(VERIFY_READ, target_addr,
3107 count * sizeof(struct target_iovec), 1);
3108 if (target_vec == NULL) {
501bb4b0 3109 err = EFAULT;
f287b2c2
RH		 3110 goto fail2;
3111 }
3112
3113 /* ??? If host page size > target page size, this will result in a
3114 value larger than what we can actually support. */
3115 max_len = 0x7fffffff & TARGET_PAGE_MASK;
3116 total_len = 0;
3117
3118 for (i = 0; i < count; i++) {
3119 abi_ulong base = tswapal(target_vec[i].iov_base);
3120 abi_long len = tswapal(target_vec[i].iov_len);
3121
3122 if (len < 0) {
501bb4b0 3123 err = EINVAL;
f287b2c2
RH		 3124 goto fail;
3125 } else if (len == 0) {
3126 /* Zero length pointer is ignored. */
3127 vec[i].iov_base = 0;
41df8411 3128 } else {
f287b2c2 3129 vec[i].iov_base = lock_user(type, base, len, copy);
29560a6c
TM		 3130 /* If the first buffer pointer is bad, this is a fault. But
3131 * subsequent bad buffers will result in a partial write; this
3132 * is realized by filling the vector with null pointers and
3133 * zero lengths. */
f287b2c2 3134 if (!vec[i].iov_base) {
29560a6c
TM		 3135 if (i == 0) {
3136 err = EFAULT;
3137 goto fail;
3138 } else {
3139 bad_address = true;
3140 }
3141 }
3142 if (bad_address) {
3143 len = 0;
f287b2c2
RH		 3144 }
3145 if (len > max_len - total_len) {
3146 len = max_len - total_len;
3147 }
41df8411 3148 }
f287b2c2
RH		 3149 vec[i].iov_len = len;
3150 total_len += len;
579a97f7 3151 }
f287b2c2
RH		 3152
3153 unlock_user(target_vec, target_addr, 0);
3154 return vec;
3155
3156 fail:
7eff518b
CG		 3157 while (--i >= 0) {
3158 if (tswapal(target_vec[i].iov_len) > 0) {
3159 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
3160 }
3161 }
f287b2c2 3162 unlock_user(target_vec, target_addr, 0);
501bb4b0 3163 fail2:
0e173b24 3164 g_free(vec);
501bb4b0 3165 errno = err;
f287b2c2 3166 return NULL;
53a5960a
PB		 3167}
3168
f287b2c2 3169static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
dab32b32 3170 abi_ulong count, int copy)
53a5960a
PB		 3171{
3172 struct target_iovec *target_vec;
53a5960a
PB		 3173 int i;
3174
f287b2c2
RH		 3175 target_vec = lock_user(VERIFY_READ, target_addr,
3176 count * sizeof(struct target_iovec), 1);
3177 if (target_vec) {
3178 for (i = 0; i < count; i++) {
3179 abi_ulong base = tswapal(target_vec[i].iov_base);
71ec7cef 3180 abi_long len = tswapal(target_vec[i].iov_len);
f287b2c2
RH		 3181 if (len < 0) {
3182 break;
3183 }
d732dcb4
AZ		 3184 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
3185 }
f287b2c2 3186 unlock_user(target_vec, target_addr, 0);
53a5960a 3187 }
579a97f7 3188
0e173b24 3189 g_free(vec);
53a5960a
PB		 3190}
3191
53d09b76 3192static inline int target_to_host_sock_type(int *type)
3532fa74 3193{
f651e6ae
PJ		 3194 int host_type = 0;
3195 int target_type = *type;
3196
3197 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 3198 case TARGET_SOCK_DGRAM:
f651e6ae 3199 host_type = SOCK_DGRAM;
3532fa74
FB		 3200 break;
3201 case TARGET_SOCK_STREAM:
f651e6ae 3202 host_type = SOCK_STREAM;
3532fa74 3203 break;
f651e6ae
PJ		 3204 default:
3205 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 3206 break;
3207 }
f651e6ae 3208 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 3209#if defined(SOCK_CLOEXEC)
f651e6ae 3210 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 3211#else
3212 return -TARGET_EINVAL;
3213#endif
f651e6ae
PJ		 3214 }
3215 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 3216#if defined(SOCK_NONBLOCK)
f651e6ae 3217 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 3218#elif !defined(O_NONBLOCK)
3219 return -TARGET_EINVAL;
3220#endif
f651e6ae
PJ		 3221 }
3222 *type = host_type;
53d09b76
EI		 3223 return 0;
3224}
3225
3226/* Try to emulate socket type flags after socket creation. */
3227static int sock_flags_fixup(int fd, int target_type)
3228{
3229#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
3230 if (target_type & TARGET_SOCK_NONBLOCK) {
3231 int flags = fcntl(fd, F_GETFL);
3232 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
3233 close(fd);
3234 return -TARGET_EINVAL;
3235 }
3236 }
3237#endif
3238 return fd;
f651e6ae
PJ		 3239}
3240
3241/* do_socket() Must return target values and target errnos. */
3242static abi_long do_socket(int domain, int type, int protocol)
3243{
53d09b76
EI		 3244 int target_type = type;
3245 int ret;
3246
3247 ret = target_to_host_sock_type(&type);
3248 if (ret) {
3249 return ret;
3250 }
f651e6ae 3251
575b22b1
LV		 3252 if (domain == PF_NETLINK && !(
3253#ifdef CONFIG_RTNETLINK
3254 protocol == NETLINK_ROUTE ||
3255#endif
3256 protocol == NETLINK_KOBJECT_UEVENT ||
3257 protocol == NETLINK_AUDIT)) {
71e2443e 3258 return -TARGET_EPROTONOSUPPORT;
6c5b5645 3259 }
ff626f2d
LV		 3260
3261 if (domain == AF_PACKET ||
3262 (domain == AF_INET && type == SOCK_PACKET)) {
3263 protocol = tswap16(protocol);
3264 }
3265
53d09b76
EI		 3266 ret = get_errno(socket(domain, type, protocol));
3267 if (ret >= 0) {
3268 ret = sock_flags_fixup(ret, target_type);
0cf22722
LV		 3269 if (type == SOCK_PACKET) {
3270 /* Manage an obsolete case :
3271 * if socket type is SOCK_PACKET, bind by name
3272 */
3273 fd_trans_register(ret, &target_packet_trans);
6c5b5645
LV		 3274 } else if (domain == PF_NETLINK) {
3275 switch (protocol) {
575b22b1 3276#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 3277 case NETLINK_ROUTE:
3278 fd_trans_register(ret, &target_netlink_route_trans);
3279 break;
575b22b1 3280#endif
b265620b
LV		 3281 case NETLINK_KOBJECT_UEVENT:
3282 /* nothing to do: messages are strings */
3283 break;
5ce9bb59
LV		 3284 case NETLINK_AUDIT:
3285 fd_trans_register(ret, &target_netlink_audit_trans);
3286 break;
6c5b5645
LV		 3287 default:
3288 g_assert_not_reached();
3289 }
0cf22722 3290 }
53d09b76
EI		 3291 }
3292 return ret;
3532fa74
FB		 3293}
3294
0da46a6e 3295/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 3296static abi_long do_bind(int sockfd, abi_ulong target_addr,
3297 socklen_t addrlen)
3532fa74 3298{
8f7aeaf6 3299 void *addr;
917507b0 3300 abi_long ret;
8f7aeaf6 3301
38724253 3302 if ((int)addrlen < 0) {
8f7aeaf6 3303 return -TARGET_EINVAL;
38724253 3304 }
8f7aeaf6 3305
607175e0 3306 addr = alloca(addrlen+1);
3b46e624 3307
7b36f782 3308 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 3309 if (ret)
3310 return ret;
3311
3532fa74
FB		 3312 return get_errno(bind(sockfd, addr, addrlen));
3313}
3314
0da46a6e 3315/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 3316static abi_long do_connect(int sockfd, abi_ulong target_addr,
3317 socklen_t addrlen)
3532fa74 3318{
8f7aeaf6 3319 void *addr;
917507b0 3320 abi_long ret;
8f7aeaf6 3321
38724253 3322 if ((int)addrlen < 0) {
8f7aeaf6 3323 return -TARGET_EINVAL;
38724253 3324 }
8f7aeaf6 3325
2dd08dfd 3326 addr = alloca(addrlen+1);
3b46e624 3327
7b36f782 3328 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 3329 if (ret)
3330 return ret;
3331
2a3c7619 3332 return get_errno(safe_connect(sockfd, addr, addrlen));
3532fa74
FB		 3333}
3334
f19e00d7
AG		 3335/* do_sendrecvmsg_locked() Must return target values and target errnos. */
3336static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
3337 int flags, int send)
3532fa74 3338{
6de645c7 3339 abi_long ret, len;
3532fa74 3340 struct msghdr msg;
dab32b32 3341 abi_ulong count;
3532fa74 3342 struct iovec *vec;
992f48a0 3343 abi_ulong target_vec;
3532fa74 3344
3532fa74
FB		 3345 if (msgp->msg_name) {
3346 msg.msg_namelen = tswap32(msgp->msg_namelen);
2dd08dfd 3347 msg.msg_name = alloca(msg.msg_namelen+1);
7b36f782
LV		 3348 ret = target_to_host_sockaddr(fd, msg.msg_name,
3349 tswapal(msgp->msg_name),
3350 msg.msg_namelen);
26a6fc96
PM		 3351 if (ret == -TARGET_EFAULT) {
3352 /* For connected sockets msg_name and msg_namelen must
3353 * be ignored, so returning EFAULT immediately is wrong.
3354 * Instead, pass a bad msg_name to the host kernel, and
3355 * let it decide whether to return EFAULT or not.
3356 */
3357 msg.msg_name = (void *)-1;
3358 } else if (ret) {
f287b2c2 3359 goto out2;
917507b0 3360 }
3532fa74
FB		 3361 } else {
3362 msg.msg_name = NULL;
3363 msg.msg_namelen = 0;
3364 }
cbb21eed 3365 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74 3366 msg.msg_control = alloca(msg.msg_controllen);
1d3d1b23
JS		 3367 memset(msg.msg_control, 0, msg.msg_controllen);
3368
3532fa74 3369 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 3370
cbb21eed 3371 count = tswapal(msgp->msg_iovlen);
cbb21eed 3372 target_vec = tswapal(msgp->msg_iov);
97b07970
PM		 3373
3374 if (count > IOV_MAX) {
3375 /* sendrcvmsg returns a different errno for this condition than
3376 * readv/writev, so we must catch it here before lock_iovec() does.
3377 */
3378 ret = -TARGET_EMSGSIZE;
3379 goto out2;
3380 }
3381
f287b2c2
RH		 3382 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
3383 target_vec, count, send);
3384 if (vec == NULL) {
3385 ret = -host_to_target_errno(errno);
3386 goto out2;
3387 }
3532fa74
FB		 3388 msg.msg_iovlen = count;
3389 msg.msg_iov = vec;
3b46e624 3390
3532fa74 3391 if (send) {
6c5b5645 3392 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 3393 void *host_msg;
3394
3395 host_msg = g_malloc(msg.msg_iov->iov_len);
3396 memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
3397 ret = fd_trans_target_to_host_data(fd)(host_msg,
6c5b5645 3398 msg.msg_iov->iov_len);
7d61d892
LV		 3399 if (ret >= 0) {
3400 msg.msg_iov->iov_base = host_msg;
3401 ret = get_errno(safe_sendmsg(fd, &msg, flags));
3402 }
3403 g_free(host_msg);
6c5b5645
LV		 3404 } else {
3405 ret = target_to_host_cmsg(&msg, msgp);
7d61d892
LV		 3406 if (ret == 0) {
3407 ret = get_errno(safe_sendmsg(fd, &msg, flags));
3408 }
6c5b5645 3409 }
3532fa74 3410 } else {
66687530 3411 ret = get_errno(safe_recvmsg(fd, &msg, flags));
6de645c7
AZ		 3412 if (!is_error(ret)) {
3413 len = ret;
6c5b5645
LV		 3414 if (fd_trans_host_to_target_data(fd)) {
3415 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2a03d3e6 3416 MIN(msg.msg_iov->iov_len, len));
6c5b5645
LV		 3417 } else {
3418 ret = host_to_target_cmsg(msgp, &msg);
3419 }
ca619067
JH		 3420 if (!is_error(ret)) {
3421 msgp->msg_namelen = tswap32(msg.msg_namelen);
24894f39 3422 msgp->msg_flags = tswap32(msg.msg_flags);
26a6fc96 3423 if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
ca619067
JH		 3424 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
3425 msg.msg_name, msg.msg_namelen);
3426 if (ret) {
3427 goto out;
3428 }
3429 }
3430
6de645c7 3431 ret = len;
ca619067 3432 }
6de645c7 3433 }
3532fa74 3434 }
ca619067
JH		 3435
3436out:
3532fa74 3437 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 3438out2:
f19e00d7
AG		 3439 return ret;
3440}
3441
3442static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
3443 int flags, int send)
3444{
3445 abi_long ret;
3446 struct target_msghdr *msgp;
3447
3448 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
3449 msgp,
3450 target_msg,
3451 send ? 1 : 0)) {
3452 return -TARGET_EFAULT;
3453 }
3454 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 3455 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 3456 return ret;
3457}
3458
f19e00d7
AG		 3459/* We don't rely on the C library to have sendmmsg/recvmmsg support,
3460 * so it might not have this *mmsg-specific flag either.
3461 */
3462#ifndef MSG_WAITFORONE
3463#define MSG_WAITFORONE 0x10000
3464#endif
3465
3466static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
3467 unsigned int vlen, unsigned int flags,
3468 int send)
3469{
3470 struct target_mmsghdr *mmsgp;
3471 abi_long ret = 0;
3472 int i;
3473
3474 if (vlen > UIO_MAXIOV) {
3475 vlen = UIO_MAXIOV;
3476 }
3477
3478 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
3479 if (!mmsgp) {
3480 return -TARGET_EFAULT;
3481 }
3482
3483 for (i = 0; i < vlen; i++) {
3484 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
3485 if (is_error(ret)) {
3486 break;
3487 }
3488 mmsgp[i].msg_len = tswap32(ret);
3489 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
3490 if (flags & MSG_WAITFORONE) {
3491 flags |= MSG_DONTWAIT;
3492 }
3493 }
3494
3495 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
3496
3497 /* Return number of datagrams sent if we sent any at all;
3498 * otherwise return the error.
3499 */
3500 if (i) {
3501 return i;
3502 }
3503 return ret;
3504}
f19e00d7 3505
a94b4987
PM		 3506/* do_accept4() Must return target values and target errnos. */
3507static abi_long do_accept4(int fd, abi_ulong target_addr,
3508 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 3509{
cd813367 3510 socklen_t addrlen, ret_addrlen;
2f619698 3511 void *addr;
992f48a0 3512 abi_long ret;
d25295d4
PJ		 3513 int host_flags;
3514
3515 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
1be9e1dc 3516
a94b4987 3517 if (target_addr == 0) {
ff6dc130 3518 return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
a94b4987 3519 }
917507b0 3520
e554eb4b 3521 /* linux returns EFAULT if addrlen pointer is invalid */
2f619698 3522 if (get_user_u32(addrlen, target_addrlen_addr))
e554eb4b 3523 return -TARGET_EFAULT;
2f619698 3524
38724253 3525 if ((int)addrlen < 0) {
8f7aeaf6 3526 return -TARGET_EINVAL;
38724253 3527 }
8f7aeaf6 3528
c7169b02 3529 if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
e554eb4b 3530 return -TARGET_EFAULT;
c7169b02 3531 }
917507b0 3532
2f619698
FB		 3533 addr = alloca(addrlen);
3534
cd813367
AS		 3535 ret_addrlen = addrlen;
3536 ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags));
1be9e1dc 3537 if (!is_error(ret)) {
cd813367
AS		 3538 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
3539 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 3540 ret = -TARGET_EFAULT;
cd813367 3541 }
1be9e1dc
PB		 3542 }
3543 return ret;
3544}
3545
0da46a6e 3546/* do_getpeername() Must return target values and target errnos. */
992f48a0 3547static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 3548 abi_ulong target_addrlen_addr)
1be9e1dc 3549{
cd813367 3550 socklen_t addrlen, ret_addrlen;
2f619698 3551 void *addr;
992f48a0 3552 abi_long ret;
1be9e1dc 3553
2f619698
FB		 3554 if (get_user_u32(addrlen, target_addrlen_addr))
3555 return -TARGET_EFAULT;
3556
38724253 3557 if ((int)addrlen < 0) {
8f7aeaf6 3558 return -TARGET_EINVAL;
38724253 3559 }
8f7aeaf6 3560
c7169b02 3561 if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
917507b0 3562 return -TARGET_EFAULT;
c7169b02 3563 }
917507b0 3564
2f619698
FB		 3565 addr = alloca(addrlen);
3566
cd813367
AS		 3567 ret_addrlen = addrlen;
3568 ret = get_errno(getpeername(fd, addr, &ret_addrlen));
1be9e1dc 3569 if (!is_error(ret)) {
cd813367
AS		 3570 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
3571 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 3572 ret = -TARGET_EFAULT;
cd813367 3573 }
1be9e1dc
PB		 3574 }
3575 return ret;
3576}
3577
0da46a6e 3578/* do_getsockname() Must return target values and target errnos. */
992f48a0 3579static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 3580 abi_ulong target_addrlen_addr)
1be9e1dc 3581{
cd813367 3582 socklen_t addrlen, ret_addrlen;
2f619698 3583 void *addr;
992f48a0 3584 abi_long ret;
1be9e1dc 3585
2f619698
FB		 3586 if (get_user_u32(addrlen, target_addrlen_addr))
3587 return -TARGET_EFAULT;
3588
38724253 3589 if ((int)addrlen < 0) {
8f7aeaf6 3590 return -TARGET_EINVAL;
38724253 3591 }
8f7aeaf6 3592
c7169b02 3593 if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
917507b0 3594 return -TARGET_EFAULT;
c7169b02 3595 }
917507b0 3596
2f619698
FB		 3597 addr = alloca(addrlen);
3598
cd813367
AS		 3599 ret_addrlen = addrlen;
3600 ret = get_errno(getsockname(fd, addr, &ret_addrlen));
1be9e1dc 3601 if (!is_error(ret)) {
cd813367
AS		 3602 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
3603 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 3604 ret = -TARGET_EFAULT;
cd813367 3605 }
1be9e1dc
PB		 3606 }
3607 return ret;
3608}
3609
0da46a6e 3610/* do_socketpair() Must return target values and target errnos. */
992f48a0 3611static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 3612 abi_ulong target_tab_addr)
1be9e1dc
PB		 3613{
3614 int tab[2];
992f48a0 3615 abi_long ret;
1be9e1dc 3616
f651e6ae
PJ		 3617 target_to_host_sock_type(&type);
3618
1be9e1dc
PB		 3619 ret = get_errno(socketpair(domain, type, protocol, tab));
3620 if (!is_error(ret)) {
2f619698
FB		 3621 if (put_user_s32(tab[0], target_tab_addr)
3622 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
3623 ret = -TARGET_EFAULT;
1be9e1dc
PB		 3624 }
3625 return ret;
3626}
3627
0da46a6e 3628/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 3629static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
3630 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 3631{
3632 void *addr;
3633 void *host_msg;
7d61d892 3634 void *copy_msg = NULL;
992f48a0 3635 abi_long ret;
1be9e1dc 3636
38724253 3637 if ((int)addrlen < 0) {
8f7aeaf6 3638 return -TARGET_EINVAL;
38724253 3639 }
8f7aeaf6 3640
579a97f7
FB		 3641 host_msg = lock_user(VERIFY_READ, msg, len, 1);
3642 if (!host_msg)
3643 return -TARGET_EFAULT;
6c5b5645 3644 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 3645 copy_msg = host_msg;
3646 host_msg = g_malloc(len);
3647 memcpy(host_msg, copy_msg, len);
6c5b5645
LV		 3648 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
3649 if (ret < 0) {
7d61d892 3650 goto fail;
6c5b5645
LV		 3651 }
3652 }
1be9e1dc 3653 if (target_addr) {
2dd08dfd 3654 addr = alloca(addrlen+1);
7b36f782 3655 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
917507b0 3656 if (ret) {
7d61d892 3657 goto fail;
917507b0 3658 }
66687530 3659 ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
1be9e1dc 3660 } else {
66687530 3661 ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
1be9e1dc 3662 }
7d61d892
LV		 3663fail:
3664 if (copy_msg) {
3665 g_free(host_msg);
3666 host_msg = copy_msg;
3667 }
1be9e1dc
PB		 3668 unlock_user(host_msg, msg, 0);
3669 return ret;
3670}
3671
0da46a6e 3672/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 3673static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
3674 abi_ulong target_addr,
3675 abi_ulong target_addrlen)
1be9e1dc 3676{
cd813367 3677 socklen_t addrlen, ret_addrlen;
1be9e1dc
PB		 3678 void *addr;
3679 void *host_msg;
992f48a0 3680 abi_long ret;
1be9e1dc 3681
4a1e6bce
ZR		 3682 if (!msg) {
3683 host_msg = NULL;
3684 } else {
3685 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
3686 if (!host_msg) {
3687 return -TARGET_EFAULT;
3688 }
3689 }
1be9e1dc 3690 if (target_addr) {
2f619698
FB		 3691 if (get_user_u32(addrlen, target_addrlen)) {
3692 ret = -TARGET_EFAULT;
3693 goto fail;
3694 }
38724253 3695 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 3696 ret = -TARGET_EINVAL;
3697 goto fail;
3698 }
1be9e1dc 3699 addr = alloca(addrlen);
cd813367 3700 ret_addrlen = addrlen;
66687530 3701 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
cd813367 3702 addr, &ret_addrlen));
1be9e1dc
PB		 3703 } else {
3704 addr = NULL; /* To keep compiler quiet. */
cd813367 3705 addrlen = 0; /* To keep compiler quiet. */
66687530 3706 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
1be9e1dc
PB		 3707 }
3708 if (!is_error(ret)) {
c35e1f9c 3709 if (fd_trans_host_to_target_data(fd)) {
2a03d3e6
LV		 3710 abi_long trans;
3711 trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
3712 if (is_error(trans)) {
3713 ret = trans;
3714 goto fail;
3715 }
c35e1f9c 3716 }
1be9e1dc 3717 if (target_addr) {
cd813367
AS		 3718 host_to_target_sockaddr(target_addr, addr,
3719 MIN(addrlen, ret_addrlen));
3720 if (put_user_u32(ret_addrlen, target_addrlen)) {
2f619698
FB		 3721 ret = -TARGET_EFAULT;
3722 goto fail;
3723 }
1be9e1dc
PB		 3724 }
3725 unlock_user(host_msg, msg, len);
3726 } else {
2f619698 3727fail:
1be9e1dc
PB		 3728 unlock_user(host_msg, msg, 0);
3729 }
3730 return ret;
3731}
3732
32407103 3733#ifdef TARGET_NR_socketcall
ff71a454 3734/* do_socketcall() must return target values and target errnos. */
992f48a0 3735static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 3736{
ff71a454
AM		 3737 static const unsigned nargs[] = { /* number of arguments per operation */
3738 [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */
3739 [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */
3740 [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */
3741 [TARGET_SYS_LISTEN] = 2, /* fd, backlog */
3742 [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */
3743 [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */
3744 [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */
3745 [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */
3746 [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */
3747 [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */
3748 [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */
3749 [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */
3750 [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */
3751 [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3752 [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3753 [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */
3754 [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */
3755 [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */
3756 [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */
3757 [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */
62dc90c6
MT		 3758 };
3759 abi_long a[6]; /* max 6 args */
ff71a454 3760 unsigned i;
62dc90c6 3761
ff71a454
AM		 3762 /* check the range of the first argument num */
3763 /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
3764 if (num < 1 || num > TARGET_SYS_SENDMMSG) {
3765 return -TARGET_EINVAL;
3766 }
3767 /* ensure we have space for args */
3768 if (nargs[num] > ARRAY_SIZE(a)) {
3769 return -TARGET_EINVAL;
3770 }
3771 /* collect the arguments in a[] according to nargs[] */
3772 for (i = 0; i < nargs[num]; ++i) {
3773 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
3774 return -TARGET_EFAULT;
31e31b8a 3775 }
62dc90c6 3776 }
ff71a454 3777 /* now when we have the args, invoke the appropriate underlying function */
62dc90c6 3778 switch (num) {
ff71a454 3779 case TARGET_SYS_SOCKET: /* domain, type, protocol */
62dc90c6 3780 return do_socket(a[0], a[1], a[2]);
ff71a454 3781 case TARGET_SYS_BIND: /* sockfd, addr, addrlen */
62dc90c6 3782 return do_bind(a[0], a[1], a[2]);
ff71a454 3783 case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */
62dc90c6 3784 return do_connect(a[0], a[1], a[2]);
ff71a454 3785 case TARGET_SYS_LISTEN: /* sockfd, backlog */
62dc90c6 3786 return get_errno(listen(a[0], a[1]));
ff71a454 3787 case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */
62dc90c6 3788 return do_accept4(a[0], a[1], a[2], 0);
ff71a454 3789 case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */
62dc90c6 3790 return do_getsockname(a[0], a[1], a[2]);
ff71a454 3791 case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */
62dc90c6 3792 return do_getpeername(a[0], a[1], a[2]);
ff71a454 3793 case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */
62dc90c6 3794 return do_socketpair(a[0], a[1], a[2], a[3]);
ff71a454 3795 case TARGET_SYS_SEND: /* sockfd, msg, len, flags */
62dc90c6 3796 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3797 case TARGET_SYS_RECV: /* sockfd, msg, len, flags */
62dc90c6 3798 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3799 case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3800 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3801 case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3802 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3803 case TARGET_SYS_SHUTDOWN: /* sockfd, how */
62dc90c6 3804 return get_errno(shutdown(a[0], a[1]));
ff71a454
AM		 3805 case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3806 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3807 case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3808 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
3809 case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */
62dc90c6 3810 return do_sendrecvmsg(a[0], a[1], a[2], 1);
ff71a454 3811 case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */
62dc90c6 3812 return do_sendrecvmsg(a[0], a[1], a[2], 0);
ff71a454
AM		 3813 case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */
3814 return do_accept4(a[0], a[1], a[2], a[3]);
3815 case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */
5a53dc50 3816 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
ff71a454
AM		 3817 case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */
3818 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
31e31b8a 3819 default:
39be5350 3820 qemu_log_mask(LOG_UNIMP, "Unsupported socketcall: %d\n", num);
ff71a454 3821 return -TARGET_EINVAL;
31e31b8a 3822 }
31e31b8a 3823}
32407103 3824#endif
31e31b8a 3825
8853f86e
FB		 3826#define N_SHM_REGIONS 32
3827
3828static struct shm_region {
b6e17875
PM		 3829 abi_ulong start;
3830 abi_ulong size;
3831 bool in_use;
8853f86e
FB		 3832} shm_regions[N_SHM_REGIONS];
3833
005eb2ae
PM		 3834#ifndef TARGET_SEMID64_DS
3835/* asm-generic version of this struct */
3836struct target_semid64_ds
3eb6b044
TS		 3837{
3838 struct target_ipc_perm sem_perm;
992f48a0 3839 abi_ulong sem_otime;
005eb2ae 3840#if TARGET_ABI_BITS == 32
992f48a0 3841 abi_ulong __unused1;
03527344 3842#endif
992f48a0 3843 abi_ulong sem_ctime;
005eb2ae 3844#if TARGET_ABI_BITS == 32
992f48a0 3845 abi_ulong __unused2;
03527344 3846#endif
992f48a0
BS		 3847 abi_ulong sem_nsems;
3848 abi_ulong __unused3;
3849 abi_ulong __unused4;
3eb6b044 3850};
005eb2ae 3851#endif
3eb6b044 3852
579a97f7
FB		 3853static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3854 abi_ulong target_addr)
3eb6b044
TS		 3855{
3856 struct target_ipc_perm *target_ip;
005eb2ae 3857 struct target_semid64_ds *target_sd;
3eb6b044 3858
579a97f7
FB		 3859 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3860 return -TARGET_EFAULT;
e8bbe36c 3861 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3862 host_ip->__key = tswap32(target_ip->__key);
3863 host_ip->uid = tswap32(target_ip->uid);
3864 host_ip->gid = tswap32(target_ip->gid);
3865 host_ip->cuid = tswap32(target_ip->cuid);
3866 host_ip->cgid = tswap32(target_ip->cgid);
3867#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3868 host_ip->mode = tswap32(target_ip->mode);
3869#else
cbb21eed 3870 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 3871#endif
3872#if defined(TARGET_PPC)
3873 host_ip->__seq = tswap32(target_ip->__seq);
3874#else
3875 host_ip->__seq = tswap16(target_ip->__seq);
3876#endif
3eb6b044 3877 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3878 return 0;
3eb6b044
TS		 3879}
3880
579a97f7
FB		 3881static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3882 struct ipc_perm *host_ip)
3eb6b044
TS		 3883{
3884 struct target_ipc_perm *target_ip;
005eb2ae 3885 struct target_semid64_ds *target_sd;
3eb6b044 3886
579a97f7
FB		 3887 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3888 return -TARGET_EFAULT;
3eb6b044 3889 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3890 target_ip->__key = tswap32(host_ip->__key);
3891 target_ip->uid = tswap32(host_ip->uid);
3892 target_ip->gid = tswap32(host_ip->gid);
3893 target_ip->cuid = tswap32(host_ip->cuid);
3894 target_ip->cgid = tswap32(host_ip->cgid);
3895#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3896 target_ip->mode = tswap32(host_ip->mode);
3897#else
cbb21eed 3898 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 3899#endif
3900#if defined(TARGET_PPC)
3901 target_ip->__seq = tswap32(host_ip->__seq);
3902#else
3903 target_ip->__seq = tswap16(host_ip->__seq);
3904#endif
3eb6b044 3905 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3906 return 0;
3eb6b044
TS		 3907}
3908
579a97f7
FB		 3909static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3910 abi_ulong target_addr)
3eb6b044 3911{
005eb2ae 3912 struct target_semid64_ds *target_sd;
3eb6b044 3913
579a97f7
FB		 3914 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3915 return -TARGET_EFAULT;
e5289087
AJ		 3916 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3917 return -TARGET_EFAULT;
cbb21eed
MB		 3918 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3919 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3920 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 3921 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3922 return 0;
3eb6b044
TS		 3923}
3924
579a97f7
FB		 3925static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3926 struct semid_ds *host_sd)
3eb6b044 3927{
005eb2ae 3928 struct target_semid64_ds *target_sd;
3eb6b044 3929
579a97f7
FB		 3930 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3931 return -TARGET_EFAULT;
e5289087 3932 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 3933 return -TARGET_EFAULT;
cbb21eed
MB		 3934 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3935 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3936 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 3937 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3938 return 0;
3eb6b044
TS		 3939}
3940
e5289087
AJ		 3941struct target_seminfo {
3942 int semmap;
3943 int semmni;
3944 int semmns;
3945 int semmnu;
3946 int semmsl;
3947 int semopm;
3948 int semume;
3949 int semusz;
3950 int semvmx;
3951 int semaem;
3952};
3953
3954static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3955 struct seminfo *host_seminfo)
3956{
3957 struct target_seminfo *target_seminfo;
3958 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3959 return -TARGET_EFAULT;
3960 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3961 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3962 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3963 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3964 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3965 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3966 __put_user(host_seminfo->semume, &target_seminfo->semume);
3967 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3968 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3969 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3970 unlock_user_struct(target_seminfo, target_addr, 1);
3971 return 0;
3972}
3973
fa294816
TS		 3974union semun {
3975 int val;
3eb6b044 3976 struct semid_ds *buf;
fa294816 3977 unsigned short *array;
e5289087 3978 struct seminfo *__buf;
fa294816
TS		 3979};
3980
3eb6b044
TS		 3981union target_semun {
3982 int val;
e5289087
AJ		 3983 abi_ulong buf;
3984 abi_ulong array;
3985 abi_ulong __buf;
3eb6b044
TS		 3986};
3987
e5289087
AJ		 3988static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3989 abi_ulong target_addr)
3eb6b044 3990{
e5289087
AJ		 3991 int nsems;
3992 unsigned short *array;
3993 union semun semun;
3994 struct semid_ds semid_ds;
3995 int i, ret;
3eb6b044 3996
e5289087
AJ		 3997 semun.buf = &semid_ds;
3998
3999 ret = semctl(semid, 0, IPC_STAT, semun);
4000 if (ret == -1)
4001 return get_errno(ret);
4002
4003 nsems = semid_ds.sem_nsems;
4004
0e173b24 4005 *host_array = g_try_new(unsigned short, nsems);
69d4c703
PM		 4006 if (!*host_array) {
4007 return -TARGET_ENOMEM;
4008 }
e5289087
AJ		 4009 array = lock_user(VERIFY_READ, target_addr,
4010 nsems*sizeof(unsigned short), 1);
69d4c703 4011 if (!array) {
0e173b24 4012 g_free(*host_array);
e5289087 4013 return -TARGET_EFAULT;
69d4c703 4014 }
e5289087
AJ		 4015
4016 for(i=0; i<nsems; i++) {
4017 __get_user((*host_array)[i], &array[i]);
3eb6b044 4018 }
e5289087
AJ		 4019 unlock_user(array, target_addr, 0);
4020
579a97f7 4021 return 0;
3eb6b044
TS		 4022}
4023
e5289087
AJ		 4024static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
4025 unsigned short **host_array)
3eb6b044 4026{
e5289087
AJ		 4027 int nsems;
4028 unsigned short *array;
4029 union semun semun;
4030 struct semid_ds semid_ds;
4031 int i, ret;
3eb6b044 4032
e5289087
AJ		 4033 semun.buf = &semid_ds;
4034
4035 ret = semctl(semid, 0, IPC_STAT, semun);
4036 if (ret == -1)
4037 return get_errno(ret);
4038
4039 nsems = semid_ds.sem_nsems;
4040
4041 array = lock_user(VERIFY_WRITE, target_addr,
4042 nsems*sizeof(unsigned short), 0);
4043 if (!array)
4044 return -TARGET_EFAULT;
4045
4046 for(i=0; i<nsems; i++) {
4047 __put_user((*host_array)[i], &array[i]);
3eb6b044 4048 }
0e173b24 4049 g_free(*host_array);
e5289087
AJ		 4050 unlock_user(array, target_addr, 1);
4051
579a97f7 4052 return 0;
3eb6b044
TS		 4053}
4054
e5289087 4055static inline abi_long do_semctl(int semid, int semnum, int cmd,
d1c002b6 4056 abi_ulong target_arg)
3eb6b044 4057{
d1c002b6 4058 union target_semun target_su = { .buf = target_arg };
3eb6b044
TS		 4059 union semun arg;
4060 struct semid_ds dsarg;
7b8118e8 4061 unsigned short *array = NULL;
e5289087
AJ		 4062 struct seminfo seminfo;
4063 abi_long ret = -TARGET_EINVAL;
4064 abi_long err;
4065 cmd &= 0xff;
3eb6b044
TS		 4066
4067 switch( cmd ) {
4068 case GETVAL:
3eb6b044 4069 case SETVAL:
5464baec
TM		 4070 /* In 64 bit cross-endian situations, we will erroneously pick up
4071 * the wrong half of the union for the "val" element. To rectify
4072 * this, the entire 8-byte structure is byteswapped, followed by
4073 * a swap of the 4 byte val field. In other cases, the data is
4074 * already in proper host byte order. */
4075 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
4076 target_su.buf = tswapal(target_su.buf);
4077 arg.val = tswap32(target_su.val);
4078 } else {
4079 arg.val = target_su.val;
4080 }
e5289087 4081 ret = get_errno(semctl(semid, semnum, cmd, arg));
3eb6b044
TS		 4082 break;
4083 case GETALL:
3eb6b044 4084 case SETALL:
e5289087
AJ		 4085 err = target_to_host_semarray(semid, &array, target_su.array);
4086 if (err)
4087 return err;
4088 arg.array = array;
4089 ret = get_errno(semctl(semid, semnum, cmd, arg));
4090 err = host_to_target_semarray(semid, target_su.array, &array);
4091 if (err)
4092 return err;
3eb6b044
TS		 4093 break;
4094 case IPC_STAT:
3eb6b044 4095 case IPC_SET:
e5289087
AJ		 4096 case SEM_STAT:
4097 err = target_to_host_semid_ds(&dsarg, target_su.buf);
4098 if (err)
4099 return err;
4100 arg.buf = &dsarg;
4101 ret = get_errno(semctl(semid, semnum, cmd, arg));
4102 err = host_to_target_semid_ds(target_su.buf, &dsarg);
4103 if (err)
4104 return err;
4105 break;
4106 case IPC_INFO:
4107 case SEM_INFO:
4108 arg.__buf = &seminfo;
4109 ret = get_errno(semctl(semid, semnum, cmd, arg));
4110 err = host_to_target_seminfo(target_su.__buf, &seminfo);
4111 if (err)
4112 return err;
4113 break;
4114 case IPC_RMID:
4115 case GETPID:
4116 case GETNCNT:
4117 case GETZCNT:
4118 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 4119 break;
3eb6b044
TS		 4120 }
4121
4122 return ret;
4123}
4124
e5289087
AJ		 4125struct target_sembuf {
4126 unsigned short sem_num;
4127 short sem_op;
4128 short sem_flg;
4129};
4130
4131static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
4132 abi_ulong target_addr,
4133 unsigned nsops)
4134{
4135 struct target_sembuf *target_sembuf;
4136 int i;
4137
4138 target_sembuf = lock_user(VERIFY_READ, target_addr,
4139 nsops*sizeof(struct target_sembuf), 1);
4140 if (!target_sembuf)
4141 return -TARGET_EFAULT;
4142
4143 for(i=0; i<nsops; i++) {
4144 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
4145 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
4146 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
4147 }
4148
4149 unlock_user(target_sembuf, target_addr, 0);
4150
4151 return 0;
4152}
4153
d8c08b1e 4154#if defined(TARGET_NR_ipc) || defined(TARGET_NR_semop) || \
cac46eb0 4155 defined(TARGET_NR_semtimedop) || defined(TARGET_NR_semtimedop_time64)
d8c08b1e
MK		 4156
4157/*
4158 * This macro is required to handle the s390 variants, which passes the
4159 * arguments in a different order than default.
4160 */
4161#ifdef __s390x__
4162#define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
4163 (__nsops), (__timeout), (__sops)
4164#else
4165#define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
4166 (__nsops), 0, (__sops), (__timeout)
4167#endif
4168
4169static inline abi_long do_semtimedop(int semid,
4170 abi_long ptr,
4171 unsigned nsops,
cac46eb0 4172 abi_long timeout, bool time64)
e5289087 4173{
0a7ec849 4174 struct sembuf *sops;
d8c08b1e 4175 struct timespec ts, *pts = NULL;
524fa340 4176 abi_long ret;
e5289087 4177
d8c08b1e
MK		 4178 if (timeout) {
4179 pts = &ts;
cac46eb0
FB		 4180 if (time64) {
4181 if (target_to_host_timespec64(pts, timeout)) {
4182 return -TARGET_EFAULT;
4183 }
4184 } else {
4185 if (target_to_host_timespec(pts, timeout)) {
4186 return -TARGET_EFAULT;
4187 }
d8c08b1e
MK		 4188 }
4189 }
4190
0a7ec849
FB		 4191 if (nsops > TARGET_SEMOPM) {
4192 return -TARGET_E2BIG;
4193 }
4194
4195 sops = g_new(struct sembuf, nsops);
4196
4197 if (target_to_host_sembuf(sops, ptr, nsops)) {
4198 g_free(sops);
e5289087 4199 return -TARGET_EFAULT;
0a7ec849 4200 }
e5289087 4201
524fa340
LV		 4202 ret = -TARGET_ENOSYS;
4203#ifdef __NR_semtimedop
d8c08b1e 4204 ret = get_errno(safe_semtimedop(semid, sops, nsops, pts));
524fa340
LV		 4205#endif
4206#ifdef __NR_ipc
4207 if (ret == -TARGET_ENOSYS) {
d8c08b1e
MK		 4208 ret = get_errno(safe_ipc(IPCOP_semtimedop, semid,
4209 SEMTIMEDOP_IPC_ARGS(nsops, sops, (long)pts)));
524fa340
LV		 4210 }
4211#endif
0a7ec849 4212 g_free(sops);
524fa340 4213 return ret;
e5289087 4214}
d8c08b1e 4215#endif
e5289087 4216
1bc012f6
TS		 4217struct target_msqid_ds
4218{
1c54ff97
AJ		 4219 struct target_ipc_perm msg_perm;
4220 abi_ulong msg_stime;
4221#if TARGET_ABI_BITS == 32
4222 abi_ulong __unused1;
4223#endif
4224 abi_ulong msg_rtime;
4225#if TARGET_ABI_BITS == 32
4226 abi_ulong __unused2;
4227#endif
4228 abi_ulong msg_ctime;
4229#if TARGET_ABI_BITS == 32
4230 abi_ulong __unused3;
4231#endif
4232 abi_ulong __msg_cbytes;
4233 abi_ulong msg_qnum;
4234 abi_ulong msg_qbytes;
4235 abi_ulong msg_lspid;
4236 abi_ulong msg_lrpid;
4237 abi_ulong __unused4;
4238 abi_ulong __unused5;
1bc012f6
TS		 4239};
4240
579a97f7
FB		 4241static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
4242 abi_ulong target_addr)
1bc012f6
TS		 4243{
4244 struct target_msqid_ds *target_md;
4245
579a97f7
FB		 4246 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
4247 return -TARGET_EFAULT;
1c54ff97
AJ		 4248 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
4249 return -TARGET_EFAULT;
cbb21eed
MB		 4250 host_md->msg_stime = tswapal(target_md->msg_stime);
4251 host_md->msg_rtime = tswapal(target_md->msg_rtime);
4252 host_md->msg_ctime = tswapal(target_md->msg_ctime);
4253 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
4254 host_md->msg_qnum = tswapal(target_md->msg_qnum);
4255 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
4256 host_md->msg_lspid = tswapal(target_md->msg_lspid);
4257 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 4258 unlock_user_struct(target_md, target_addr, 0);
579a97f7 4259 return 0;
1bc012f6
TS		 4260}
4261
579a97f7
FB		 4262static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
4263 struct msqid_ds *host_md)
1bc012f6
TS		 4264{
4265 struct target_msqid_ds *target_md;
4266
579a97f7
FB		 4267 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
4268 return -TARGET_EFAULT;
1c54ff97
AJ		 4269 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
4270 return -TARGET_EFAULT;
cbb21eed
MB		 4271 target_md->msg_stime = tswapal(host_md->msg_stime);
4272 target_md->msg_rtime = tswapal(host_md->msg_rtime);
4273 target_md->msg_ctime = tswapal(host_md->msg_ctime);
4274 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
4275 target_md->msg_qnum = tswapal(host_md->msg_qnum);
4276 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
4277 target_md->msg_lspid = tswapal(host_md->msg_lspid);
4278 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 4279 unlock_user_struct(target_md, target_addr, 1);
579a97f7 4280 return 0;
1bc012f6
TS		 4281}
4282
1c54ff97
AJ		 4283struct target_msginfo {
4284 int msgpool;
4285 int msgmap;
4286 int msgmax;
4287 int msgmnb;
4288 int msgmni;
4289 int msgssz;
4290 int msgtql;
4291 unsigned short int msgseg;
4292};
4293
4294static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
4295 struct msginfo *host_msginfo)
4296{
4297 struct target_msginfo *target_msginfo;
4298 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
4299 return -TARGET_EFAULT;
4300 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
4301 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
4302 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
4303 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
4304 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
4305 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
4306 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
4307 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
4308 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 4309 return 0;
1c54ff97
AJ		 4310}
4311
4312static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 4313{
4314 struct msqid_ds dsarg;
1c54ff97
AJ		 4315 struct msginfo msginfo;
4316 abi_long ret = -TARGET_EINVAL;
4317
4318 cmd &= 0xff;
4319
4320 switch (cmd) {
1bc012f6
TS		 4321 case IPC_STAT:
4322 case IPC_SET:
1c54ff97
AJ		 4323 case MSG_STAT:
4324 if (target_to_host_msqid_ds(&dsarg,ptr))
4325 return -TARGET_EFAULT;
4326 ret = get_errno(msgctl(msgid, cmd, &dsarg));
4327 if (host_to_target_msqid_ds(ptr,&dsarg))
4328 return -TARGET_EFAULT;
4329 break;
4330 case IPC_RMID:
4331 ret = get_errno(msgctl(msgid, cmd, NULL));
4332 break;
4333 case IPC_INFO:
4334 case MSG_INFO:
4335 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
4336 if (host_to_target_msginfo(ptr, &msginfo))
4337 return -TARGET_EFAULT;
4338 break;
1bc012f6 4339 }
1c54ff97 4340
1bc012f6
TS		 4341 return ret;
4342}
4343
4344struct target_msgbuf {
1c54ff97
AJ		 4345 abi_long mtype;
4346 char mtext[1];
1bc012f6
TS		 4347};
4348
992f48a0 4349static inline abi_long do_msgsnd(int msqid, abi_long msgp,
edcc5f9d 4350 ssize_t msgsz, int msgflg)
1bc012f6
TS		 4351{
4352 struct target_msgbuf *target_mb;
4353 struct msgbuf *host_mb;
992f48a0 4354 abi_long ret = 0;
1bc012f6 4355
edcc5f9d
TM		 4356 if (msgsz < 0) {
4357 return -TARGET_EINVAL;
4358 }
4359
579a97f7
FB		 4360 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
4361 return -TARGET_EFAULT;
0e173b24 4362 host_mb = g_try_malloc(msgsz + sizeof(long));
29e03fcb
HZ		 4363 if (!host_mb) {
4364 unlock_user_struct(target_mb, msgp, 0);
4365 return -TARGET_ENOMEM;
4366 }
cbb21eed 4367 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 4368 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
524fa340
LV		 4369 ret = -TARGET_ENOSYS;
4370#ifdef __NR_msgsnd
89f9fe44 4371 ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
524fa340
LV		 4372#endif
4373#ifdef __NR_ipc
4374 if (ret == -TARGET_ENOSYS) {
d8c08b1e
MK		 4375#ifdef __s390x__
4376 ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
4377 host_mb));
4378#else
524fa340
LV		 4379 ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
4380 host_mb, 0));
d8c08b1e 4381#endif
524fa340
LV		 4382 }
4383#endif
0e173b24 4384 g_free(host_mb);
1bc012f6
TS		 4385 unlock_user_struct(target_mb, msgp, 0);
4386
4387 return ret;
4388}
4389
d8c08b1e
MK		 4390#ifdef __NR_ipc
4391#if defined(__sparc__)
4392/* SPARC for msgrcv it does not use the kludge on final 2 arguments. */
4393#define MSGRCV_ARGS(__msgp, __msgtyp) __msgp, __msgtyp
4394#elif defined(__s390x__)
4395/* The s390 sys_ipc variant has only five parameters. */
4396#define MSGRCV_ARGS(__msgp, __msgtyp) \
4397 ((long int[]){(long int)__msgp, __msgtyp})
4398#else
4399#define MSGRCV_ARGS(__msgp, __msgtyp) \
4400 ((long int[]){(long int)__msgp, __msgtyp}), 0
4401#endif
4402#endif
4403
992f48a0 4404static inline abi_long do_msgrcv(int msqid, abi_long msgp,
99874f65 4405 ssize_t msgsz, abi_long msgtyp,
992f48a0 4406 int msgflg)
1bc012f6
TS		 4407{
4408 struct target_msgbuf *target_mb;
579a97f7 4409 char *target_mtext;
1bc012f6 4410 struct msgbuf *host_mb;
992f48a0 4411 abi_long ret = 0;
1bc012f6 4412
99874f65
PM		 4413 if (msgsz < 0) {
4414 return -TARGET_EINVAL;
4415 }
4416
579a97f7
FB		 4417 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
4418 return -TARGET_EFAULT;
1c54ff97 4419
415d8471
PM		 4420 host_mb = g_try_malloc(msgsz + sizeof(long));
4421 if (!host_mb) {
4422 ret = -TARGET_ENOMEM;
4423 goto end;
4424 }
524fa340
LV		 4425 ret = -TARGET_ENOSYS;
4426#ifdef __NR_msgrcv
89f9fe44 4427 ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
524fa340
LV		 4428#endif
4429#ifdef __NR_ipc
4430 if (ret == -TARGET_ENOSYS) {
4431 ret = get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv), msqid, msgsz,
d8c08b1e 4432 msgflg, MSGRCV_ARGS(host_mb, msgtyp)));
524fa340
LV		 4433 }
4434#endif
1c54ff97 4435
579a97f7
FB		 4436 if (ret > 0) {
4437 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
4438 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
4439 if (!target_mtext) {
4440 ret = -TARGET_EFAULT;
4441 goto end;
4442 }
1c54ff97 4443 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 4444 unlock_user(target_mtext, target_mtext_addr, ret);
4445 }
1c54ff97 4446
cbb21eed 4447 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 4448
579a97f7
FB		 4449end:
4450 if (target_mb)
4451 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 4452 g_free(host_mb);
1bc012f6
TS		 4453 return ret;
4454}
4455
88a8c984
RV		 4456static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
4457 abi_ulong target_addr)
4458{
4459 struct target_shmid_ds *target_sd;
4460
4461 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
4462 return -TARGET_EFAULT;
4463 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
4464 return -TARGET_EFAULT;
4465 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
4466 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
4467 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
4468 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
4469 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
4470 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
4471 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
4472 unlock_user_struct(target_sd, target_addr, 0);
4473 return 0;
4474}
4475
4476static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
4477 struct shmid_ds *host_sd)
4478{
4479 struct target_shmid_ds *target_sd;
4480
4481 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
4482 return -TARGET_EFAULT;
4483 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
4484 return -TARGET_EFAULT;
4485 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
4486 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
4487 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
4488 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
4489 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
4490 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
4491 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
4492 unlock_user_struct(target_sd, target_addr, 1);
4493 return 0;
4494}
4495
4496struct target_shminfo {
4497 abi_ulong shmmax;
4498 abi_ulong shmmin;
4499 abi_ulong shmmni;
4500 abi_ulong shmseg;
4501 abi_ulong shmall;
4502};
4503
4504static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
4505 struct shminfo *host_shminfo)
4506{
4507 struct target_shminfo *target_shminfo;
4508 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
4509 return -TARGET_EFAULT;
4510 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
4511 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
4512 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
4513 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
4514 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
4515 unlock_user_struct(target_shminfo, target_addr, 1);
4516 return 0;
4517}
4518
4519struct target_shm_info {
4520 int used_ids;
4521 abi_ulong shm_tot;
4522 abi_ulong shm_rss;
4523 abi_ulong shm_swp;
4524 abi_ulong swap_attempts;
4525 abi_ulong swap_successes;
4526};
4527
4528static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
4529 struct shm_info *host_shm_info)
4530{
4531 struct target_shm_info *target_shm_info;
4532 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
4533 return -TARGET_EFAULT;
4534 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
4535 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
4536 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
4537 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
4538 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
4539 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
4540 unlock_user_struct(target_shm_info, target_addr, 1);
4541 return 0;
4542}
4543
4544static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
4545{
4546 struct shmid_ds dsarg;
4547 struct shminfo shminfo;
4548 struct shm_info shm_info;
4549 abi_long ret = -TARGET_EINVAL;
4550
4551 cmd &= 0xff;
4552
4553 switch(cmd) {
4554 case IPC_STAT:
4555 case IPC_SET:
4556 case SHM_STAT:
4557 if (target_to_host_shmid_ds(&dsarg, buf))
4558 return -TARGET_EFAULT;
4559 ret = get_errno(shmctl(shmid, cmd, &dsarg));
4560 if (host_to_target_shmid_ds(buf, &dsarg))
4561 return -TARGET_EFAULT;
4562 break;
4563 case IPC_INFO:
4564 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
4565 if (host_to_target_shminfo(buf, &shminfo))
4566 return -TARGET_EFAULT;
4567 break;
4568 case SHM_INFO:
4569 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
4570 if (host_to_target_shm_info(buf, &shm_info))
4571 return -TARGET_EFAULT;
4572 break;
4573 case IPC_RMID:
4574 case SHM_LOCK:
4575 case SHM_UNLOCK:
4576 ret = get_errno(shmctl(shmid, cmd, NULL));
4577 break;
4578 }
4579
4580 return ret;
4581}
4582
ee8e7614
PM		 4583#ifndef TARGET_FORCE_SHMLBA
4584/* For most architectures, SHMLBA is the same as the page size;
4585 * some architectures have larger values, in which case they should
4586 * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
4587 * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
4588 * and defining its own value for SHMLBA.
4589 *
4590 * The kernel also permits SHMLBA to be set by the architecture to a
4591 * value larger than the page size without setting __ARCH_FORCE_SHMLBA;
4592 * this means that addresses are rounded to the large size if
4593 * SHM_RND is set but addresses not aligned to that size are not rejected
4594 * as long as they are at least page-aligned. Since the only architecture
4595 * which uses this is ia64 this code doesn't provide for that oddity.
4596 */
4597static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
4598{
4599 return TARGET_PAGE_SIZE;
4600}
4601#endif
4602
4603static inline abi_ulong do_shmat(CPUArchState *cpu_env,
4604 int shmid, abi_ulong shmaddr, int shmflg)
88a8c984
RV		 4605{
4606 abi_long raddr;
4607 void *host_raddr;
4608 struct shmid_ds shm_info;
4609 int i,ret;
ee8e7614 4610 abi_ulong shmlba;
88a8c984 4611
ee1bf83d
RH		 4612 /* shmat pointers are always untagged */
4613
88a8c984
RV		 4614 /* find out the length of the shared memory segment */
4615 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
4616 if (is_error(ret)) {
4617 /* can't get length, bail out */
4618 return ret;
4619 }
4620
ee8e7614
PM		 4621 shmlba = target_shmlba(cpu_env);
4622
4623 if (shmaddr & (shmlba - 1)) {
4624 if (shmflg & SHM_RND) {
4625 shmaddr &= ~(shmlba - 1);
4626 } else {
4627 return -TARGET_EINVAL;
4628 }
4629 }
46b12f46 4630 if (!guest_range_valid_untagged(shmaddr, shm_info.shm_segsz)) {
ebf9a363
MF		 4631 return -TARGET_EINVAL;
4632 }
ee8e7614 4633
88a8c984
RV		 4634 mmap_lock();
4635
4636 if (shmaddr)
3e8f1628 4637 host_raddr = shmat(shmid, (void *)g2h_untagged(shmaddr), shmflg);
88a8c984
RV		 4638 else {
4639 abi_ulong mmap_start;
4640
30ab9ef2
RH		 4641 /* In order to use the host shmat, we need to honor host SHMLBA. */
4642 mmap_start = mmap_find_vma(0, shm_info.shm_segsz, MAX(SHMLBA, shmlba));
88a8c984
RV		 4643
4644 if (mmap_start == -1) {
4645 errno = ENOMEM;
4646 host_raddr = (void *)-1;
4647 } else
3e8f1628
RH		 4648 host_raddr = shmat(shmid, g2h_untagged(mmap_start),
4649 shmflg | SHM_REMAP);
88a8c984
RV		 4650 }
4651
4652 if (host_raddr == (void *)-1) {
4653 mmap_unlock();
4654 return get_errno((long)host_raddr);
4655 }
4656 raddr=h2g((unsigned long)host_raddr);
4657
4658 page_set_flags(raddr, raddr + shm_info.shm_segsz,
d9c58585
RH		 4659 PAGE_VALID | PAGE_RESET | PAGE_READ |
4660 (shmflg & SHM_RDONLY ? 0 : PAGE_WRITE));
88a8c984
RV		 4661
4662 for (i = 0; i < N_SHM_REGIONS; i++) {
b6e17875
PM		 4663 if (!shm_regions[i].in_use) {
4664 shm_regions[i].in_use = true;
88a8c984
RV		 4665 shm_regions[i].start = raddr;
4666 shm_regions[i].size = shm_info.shm_segsz;
4667 break;
4668 }
4669 }
4670
4671 mmap_unlock();
4672 return raddr;
4673
4674}
4675
4676static inline abi_long do_shmdt(abi_ulong shmaddr)
4677{
4678 int i;
3c5f6a5f
MF		 4679 abi_long rv;
4680
ee1bf83d
RH		 4681 /* shmdt pointers are always untagged */
4682
3c5f6a5f 4683 mmap_lock();
88a8c984
RV		 4684
4685 for (i = 0; i < N_SHM_REGIONS; ++i) {
b6e17875
PM		 4686 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
4687 shm_regions[i].in_use = false;
e00ac249 4688 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 4689 break;
4690 }
4691 }
3e8f1628 4692 rv = get_errno(shmdt(g2h_untagged(shmaddr)));
88a8c984 4693
3c5f6a5f 4694 mmap_unlock();
88a8c984 4695
3c5f6a5f 4696 return rv;
88a8c984
RV		 4697}
4698
1c54ff97 4699#ifdef TARGET_NR_ipc
53a5960a 4700/* ??? This only works with linear mappings. */
0da46a6e 4701/* do_ipc() must return target values and target errnos. */
ee8e7614
PM		 4702static abi_long do_ipc(CPUArchState *cpu_env,
4703 unsigned int call, abi_long first,
37ed0956 4704 abi_long second, abi_long third,
992f48a0 4705 abi_long ptr, abi_long fifth)
8853f86e
FB		 4706{
4707 int version;
992f48a0 4708 abi_long ret = 0;
8853f86e
FB		 4709
4710 version = call >> 16;
4711 call &= 0xffff;
4712
4713 switch (call) {
fa294816 4714 case IPCOP_semop:
cac46eb0 4715 ret = do_semtimedop(first, ptr, second, 0, false);
d8c08b1e
MK		 4716 break;
4717 case IPCOP_semtimedop:
4718 /*
4719 * The s390 sys_ipc variant has only five parameters instead of six
4720 * (as for default variant) and the only difference is the handling of
4721 * SEMTIMEDOP where on s390 the third parameter is used as a pointer
4722 * to a struct timespec where the generic variant uses fifth parameter.
4723 */
4724#if defined(TARGET_S390X)
cac46eb0 4725 ret = do_semtimedop(first, ptr, second, third, TARGET_ABI_BITS == 64);
d8c08b1e 4726#else
cac46eb0 4727 ret = do_semtimedop(first, ptr, second, fifth, TARGET_ABI_BITS == 64);
d8c08b1e 4728#endif
fa294816
TS		 4729 break;
4730
4731 case IPCOP_semget:
4732 ret = get_errno(semget(first, second, third));
4733 break;
4734
5d2fa8eb
TM		 4735 case IPCOP_semctl: {
4736 /* The semun argument to semctl is passed by value, so dereference the
4737 * ptr argument. */
4738 abi_ulong atptr;
37ed0956 4739 get_user_ual(atptr, ptr);
d1c002b6 4740 ret = do_semctl(first, second, third, atptr);
fa294816 4741 break;
5d2fa8eb 4742 }
d96372ef 4743
1c54ff97
AJ		 4744 case IPCOP_msgget:
4745 ret = get_errno(msgget(first, second));
4746 break;
d96372ef 4747
1c54ff97
AJ		 4748 case IPCOP_msgsnd:
4749 ret = do_msgsnd(first, ptr, second, third);
4750 break;
d96372ef 4751
1c54ff97
AJ		 4752 case IPCOP_msgctl:
4753 ret = do_msgctl(first, second, ptr);
4754 break;
d96372ef 4755
1c54ff97
AJ		 4756 case IPCOP_msgrcv:
4757 switch (version) {
4758 case 0:
4759 {
4760 struct target_ipc_kludge {
4761 abi_long msgp;
4762 abi_long msgtyp;
4763 } *tmp;
4764
4765 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
4766 ret = -TARGET_EFAULT;
4767 break;
4768 }
d96372ef 4769
79dd77de 4770 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 4771
1c54ff97
AJ		 4772 unlock_user_struct(tmp, ptr, 0);
4773 break;
4774 }
4775 default:
4776 ret = do_msgrcv(first, ptr, second, fifth, third);
4777 }
4778 break;
d96372ef 4779
8853f86e 4780 case IPCOP_shmat:
88a8c984
RV		 4781 switch (version) {
4782 default:
5a4a898d
FB		 4783 {
4784 abi_ulong raddr;
ee8e7614 4785 raddr = do_shmat(cpu_env, first, ptr, second);
88a8c984
RV		 4786 if (is_error(raddr))
4787 return get_errno(raddr);
2f619698 4788 if (put_user_ual(raddr, third))
5a4a898d 4789 return -TARGET_EFAULT;
88a8c984
RV		 4790 break;
4791 }
4792 case 1:
4793 ret = -TARGET_EINVAL;
4794 break;
5a4a898d 4795 }
8853f86e
FB		 4796 break;
4797 case IPCOP_shmdt:
88a8c984 4798 ret = do_shmdt(ptr);
8853f86e
FB		 4799 break;
4800
4801 case IPCOP_shmget:
4802 /* IPC_* flag values are the same on all linux platforms */
4803 ret = get_errno(shmget(first, second, third));
4804 break;
4805
4806 /* IPC_* and SHM_* command values are the same on all linux platforms */
4807 case IPCOP_shmctl:
a2926784 4808 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 4809 break;
4810 default:
39be5350
JK		 4811 qemu_log_mask(LOG_UNIMP, "Unsupported ipc call: %d (version %d)\n",
4812 call, version);
0da46a6e 4813 ret = -TARGET_ENOSYS;
8853f86e
FB		 4814 break;
4815 }
4816 return ret;
4817}
32407103 4818#endif
8853f86e 4819
31e31b8a 4820/* kernel structure types definitions */
31e31b8a 4821
001faf32 4822#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 4823#define STRUCT_SPECIAL(name) STRUCT_ ## name,
4824enum {
4825#include "syscall_types.h"
8be656b8 4826STRUCT_MAX
31e31b8a
FB		 4827};
4828#undef STRUCT
4829#undef STRUCT_SPECIAL
4830
001faf32 4831#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 4832#define STRUCT_SPECIAL(name)
4833#include "syscall_types.h"
4834#undef STRUCT
4835#undef STRUCT_SPECIAL
4836
31e31b8a
FB		 4837#define MAX_STRUCT_SIZE 4096
4838
dace20dc 4839#ifdef CONFIG_FIEMAP
285da2b9
PM		 4840/* So fiemap access checks don't overflow on 32 bit systems.
4841 * This is very slightly smaller than the limit imposed by
4842 * the underlying kernel.
4843 */
4844#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4845 / sizeof(struct fiemap_extent))
4846
4847static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4848 int fd, int cmd, abi_long arg)
285da2b9
PM		 4849{
4850 /* The parameter for this ioctl is a struct fiemap followed
4851 * by an array of struct fiemap_extent whose size is set
4852 * in fiemap->fm_extent_count. The array is filled in by the
4853 * ioctl.
4854 */
4855 int target_size_in, target_size_out;
4856 struct fiemap *fm;
4857 const argtype *arg_type = ie->arg_type;
4858 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4859 void *argptr, *p;
4860 abi_long ret;
4861 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4862 uint32_t outbufsz;
4863 int free_fm = 0;
4864
4865 assert(arg_type[0] == TYPE_PTR);
4866 assert(ie->access == IOC_RW);
4867 arg_type++;
4868 target_size_in = thunk_type_size(arg_type, 0);
4869 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4870 if (!argptr) {
4871 return -TARGET_EFAULT;
4872 }
4873 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4874 unlock_user(argptr, arg, 0);
4875 fm = (struct fiemap *)buf_temp;
4876 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4877 return -TARGET_EINVAL;
4878 }
4879
4880 outbufsz = sizeof (*fm) +
4881 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4882
4883 if (outbufsz > MAX_STRUCT_SIZE) {
4884 /* We can't fit all the extents into the fixed size buffer.
4885 * Allocate one that is large enough and use it instead.
4886 */
0e173b24 4887 fm = g_try_malloc(outbufsz);
285da2b9
PM		 4888 if (!fm) {
4889 return -TARGET_ENOMEM;
4890 }
4891 memcpy(fm, buf_temp, sizeof(struct fiemap));
4892 free_fm = 1;
4893 }
49ca6f3e 4894 ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
285da2b9
PM		 4895 if (!is_error(ret)) {
4896 target_size_out = target_size_in;
4897 /* An extent_count of 0 means we were only counting the extents
4898 * so there are no structs to copy
4899 */
4900 if (fm->fm_extent_count != 0) {
4901 target_size_out += fm->fm_mapped_extents * extent_size;
4902 }
4903 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4904 if (!argptr) {
4905 ret = -TARGET_EFAULT;
4906 } else {
4907 /* Convert the struct fiemap */
4908 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4909 if (fm->fm_extent_count != 0) {
4910 p = argptr + target_size_in;
4911 /* ...and then all the struct fiemap_extents */
4912 for (i = 0; i < fm->fm_mapped_extents; i++) {
4913 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4914 THUNK_TARGET);
4915 p += extent_size;
4916 }
4917 }
4918 unlock_user(argptr, arg, target_size_out);
4919 }
4920 }
4921 if (free_fm) {
0e173b24 4922 g_free(fm);
285da2b9
PM		 4923 }
4924 return ret;
4925}
dace20dc 4926#endif
285da2b9 4927
059c2f2c 4928static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4929 int fd, int cmd, abi_long arg)
059c2f2c
LV		 4930{
4931 const argtype *arg_type = ie->arg_type;
4932 int target_size;
4933 void *argptr;
4934 int ret;
4935 struct ifconf *host_ifconf;
4936 uint32_t outbufsz;
4937 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4df7b7fa 4938 const argtype ifreq_max_type[] = { MK_STRUCT(STRUCT_ifmap_ifreq) };
059c2f2c
LV		 4939 int target_ifreq_size;
4940 int nb_ifreq;
4941 int free_buf = 0;
4942 int i;
4943 int target_ifc_len;
4944 abi_long target_ifc_buf;
4945 int host_ifc_len;
4946 char *host_ifc_buf;
4947
4948 assert(arg_type[0] == TYPE_PTR);
4949 assert(ie->access == IOC_RW);
4950
4951 arg_type++;
4952 target_size = thunk_type_size(arg_type, 0);
4953
4954 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4955 if (!argptr)
4956 return -TARGET_EFAULT;
4957 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4958 unlock_user(argptr, arg, 0);
4959
4960 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
059c2f2c 4961 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
4df7b7fa 4962 target_ifreq_size = thunk_type_size(ifreq_max_type, 0);
059c2f2c 4963
22e4a267
KL		 4964 if (target_ifc_buf != 0) {
4965 target_ifc_len = host_ifconf->ifc_len;
4966 nb_ifreq = target_ifc_len / target_ifreq_size;
4967 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4968
4969 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4970 if (outbufsz > MAX_STRUCT_SIZE) {
4971 /*
4972 * We can't fit all the extents into the fixed size buffer.
4973 * Allocate one that is large enough and use it instead.
4974 */
4975 host_ifconf = malloc(outbufsz);
4976 if (!host_ifconf) {
4977 return -TARGET_ENOMEM;
4978 }
4979 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4980 free_buf = 1;
059c2f2c 4981 }
22e4a267 4982 host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf);
059c2f2c 4983
22e4a267
KL		 4984 host_ifconf->ifc_len = host_ifc_len;
4985 } else {
4986 host_ifc_buf = NULL;
4987 }
059c2f2c
LV		 4988 host_ifconf->ifc_buf = host_ifc_buf;
4989
49ca6f3e 4990 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
059c2f2c
LV		 4991 if (!is_error(ret)) {
4992 /* convert host ifc_len to target ifc_len */
4993
4994 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4995 target_ifc_len = nb_ifreq * target_ifreq_size;
4996 host_ifconf->ifc_len = target_ifc_len;
4997
4998 /* restore target ifc_buf */
4999
5000 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
5001
5002 /* copy struct ifconf to target user */
5003
5004 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5005 if (!argptr)
5006 return -TARGET_EFAULT;
5007 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
5008 unlock_user(argptr, arg, target_size);
5009
22e4a267
KL		 5010 if (target_ifc_buf != 0) {
5011 /* copy ifreq[] to target user */
5012 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
5013 for (i = 0; i < nb_ifreq ; i++) {
5014 thunk_convert(argptr + i * target_ifreq_size,
5015 host_ifc_buf + i * sizeof(struct ifreq),
5016 ifreq_arg_type, THUNK_TARGET);
5017 }
5018 unlock_user(argptr, target_ifc_buf, target_ifc_len);
059c2f2c 5019 }
059c2f2c
LV		 5020 }
5021
5022 if (free_buf) {
5023 free(host_ifconf);
5024 }
5025
5026 return ret;
5027}
5028
a133367e
CT		 5029#if defined(CONFIG_USBFS)
5030#if HOST_LONG_BITS > 64
5031#error USBDEVFS thunks do not support >64 bit hosts yet.
5032#endif
5033struct live_urb {
5034 uint64_t target_urb_adr;
5035 uint64_t target_buf_adr;
5036 char *target_buf_ptr;
5037 struct usbdevfs_urb host_urb;
5038};
5039
5040static GHashTable *usbdevfs_urb_hashtable(void)
5041{
5042 static GHashTable *urb_hashtable;
5043
5044 if (!urb_hashtable) {
5045 urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
5046 }
5047 return urb_hashtable;
5048}
5049
5050static void urb_hashtable_insert(struct live_urb *urb)
5051{
5052 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
5053 g_hash_table_insert(urb_hashtable, urb, urb);
5054}
5055
5056static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
5057{
5058 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
5059 return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
5060}
5061
5062static void urb_hashtable_remove(struct live_urb *urb)
5063{
5064 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
5065 g_hash_table_remove(urb_hashtable, urb);
5066}
5067
5068static abi_long
5069do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
5070 int fd, int cmd, abi_long arg)
5071{
5072 const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
5073 const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
5074 struct live_urb *lurb;
5075 void *argptr;
5076 uint64_t hurb;
5077 int target_size;
5078 uintptr_t target_urb_adr;
5079 abi_long ret;
5080
5081 target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
5082
5083 memset(buf_temp, 0, sizeof(uint64_t));
5084 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
5085 if (is_error(ret)) {
5086 return ret;
5087 }
5088
5089 memcpy(&hurb, buf_temp, sizeof(uint64_t));
5090 lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
5091 if (!lurb->target_urb_adr) {
5092 return -TARGET_EFAULT;
5093 }
5094 urb_hashtable_remove(lurb);
5095 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
5096 lurb->host_urb.buffer_length);
5097 lurb->target_buf_ptr = NULL;
5098
5099 /* restore the guest buffer pointer */
5100 lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
5101
5102 /* update the guest urb struct */
5103 argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
5104 if (!argptr) {
5105 g_free(lurb);
5106 return -TARGET_EFAULT;
5107 }
5108 thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
5109 unlock_user(argptr, lurb->target_urb_adr, target_size);
5110
5111 target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
5112 /* write back the urb handle */
5113 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5114 if (!argptr) {
5115 g_free(lurb);
5116 return -TARGET_EFAULT;
5117 }
5118
5119 /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
5120 target_urb_adr = lurb->target_urb_adr;
5121 thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
5122 unlock_user(argptr, arg, target_size);
5123
5124 g_free(lurb);
5125 return ret;
5126}
5127
5128static abi_long
5129do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
5130 uint8_t *buf_temp __attribute__((unused)),
5131 int fd, int cmd, abi_long arg)
5132{
5133 struct live_urb *lurb;
5134
5135 /* map target address back to host URB with metadata. */
5136 lurb = urb_hashtable_lookup(arg);
5137 if (!lurb) {
5138 return -TARGET_EFAULT;
5139 }
5140 return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
5141}
5142
5143static abi_long
5144do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
5145 int fd, int cmd, abi_long arg)
5146{
5147 const argtype *arg_type = ie->arg_type;
5148 int target_size;
5149 abi_long ret;
5150 void *argptr;
5151 int rw_dir;
5152 struct live_urb *lurb;
5153
5154 /*
5155 * each submitted URB needs to map to a unique ID for the
5156 * kernel, and that unique ID needs to be a pointer to
5157 * host memory. hence, we need to malloc for each URB.
5158 * isochronous transfers have a variable length struct.
5159 */
5160 arg_type++;
5161 target_size = thunk_type_size(arg_type, THUNK_TARGET);
5162
5163 /* construct host copy of urb and metadata */
5164 lurb = g_try_malloc0(sizeof(struct live_urb));
5165 if (!lurb) {
5166 return -TARGET_ENOMEM;
5167 }
5168
5169 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5170 if (!argptr) {
5171 g_free(lurb);
5172 return -TARGET_EFAULT;
5173 }
5174 thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
5175 unlock_user(argptr, arg, 0);
5176
5177 lurb->target_urb_adr = arg;
5178 lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
5179
5180 /* buffer space used depends on endpoint type so lock the entire buffer */
5181 /* control type urbs should check the buffer contents for true direction */
5182 rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
5183 lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
5184 lurb->host_urb.buffer_length, 1);
5185 if (lurb->target_buf_ptr == NULL) {
5186 g_free(lurb);
5187 return -TARGET_EFAULT;
5188 }
5189
5190 /* update buffer pointer in host copy */
5191 lurb->host_urb.buffer = lurb->target_buf_ptr;
5192
5193 ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
5194 if (is_error(ret)) {
5195 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
5196 g_free(lurb);
5197 } else {
5198 urb_hashtable_insert(lurb);
5199 }
5200
5201 return ret;
5202}
5203#endif /* CONFIG_USBFS */
5204
56e904ec 5205static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 5206 int cmd, abi_long arg)
56e904ec
AG		 5207{
5208 void *argptr;
5209 struct dm_ioctl *host_dm;
5210 abi_long guest_data;
5211 uint32_t guest_data_size;
5212 int target_size;
5213 const argtype *arg_type = ie->arg_type;
5214 abi_long ret;
5215 void *big_buf = NULL;
5216 char *host_data;
5217
5218 arg_type++;
5219 target_size = thunk_type_size(arg_type, 0);
5220 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5221 if (!argptr) {
5222 ret = -TARGET_EFAULT;
5223 goto out;
5224 }
5225 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
5226 unlock_user(argptr, arg, 0);
5227
5228 /* buf_temp is too small, so fetch things into a bigger buffer */
5229 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
5230 memcpy(big_buf, buf_temp, target_size);
5231 buf_temp = big_buf;
5232 host_dm = big_buf;
5233
5234 guest_data = arg + host_dm->data_start;
5235 if ((guest_data - arg) < 0) {
f9757b1d 5236 ret = -TARGET_EINVAL;
56e904ec
AG		 5237 goto out;
5238 }
5239 guest_data_size = host_dm->data_size - host_dm->data_start;
5240 host_data = (char*)host_dm + host_dm->data_start;
5241
5242 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3211215e
PM		 5243 if (!argptr) {
5244 ret = -TARGET_EFAULT;
5245 goto out;
5246 }
5247
56e904ec
AG		 5248 switch (ie->host_cmd) {
5249 case DM_REMOVE_ALL:
5250 case DM_LIST_DEVICES:
5251 case DM_DEV_CREATE:
5252 case DM_DEV_REMOVE:
5253 case DM_DEV_SUSPEND:
5254 case DM_DEV_STATUS:
5255 case DM_DEV_WAIT:
5256 case DM_TABLE_STATUS:
5257 case DM_TABLE_CLEAR:
5258 case DM_TABLE_DEPS:
5259 case DM_LIST_VERSIONS:
5260 /* no input data */
5261 break;
5262 case DM_DEV_RENAME:
5263 case DM_DEV_SET_GEOMETRY:
5264 /* data contains only strings */
5265 memcpy(host_data, argptr, guest_data_size);
5266 break;
5267 case DM_TARGET_MSG:
5268 memcpy(host_data, argptr, guest_data_size);
5269 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
5270 break;
5271 case DM_TABLE_LOAD:
5272 {
5273 void *gspec = argptr;
5274 void *cur_data = host_data;
5275 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
5276 int spec_size = thunk_type_size(arg_type, 0);
5277 int i;
5278
5279 for (i = 0; i < host_dm->target_count; i++) {
5280 struct dm_target_spec *spec = cur_data;
5281 uint32_t next;
5282 int slen;
5283
5284 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
5285 slen = strlen((char*)gspec + spec_size) + 1;
5286 next = spec->next;
5287 spec->next = sizeof(*spec) + slen;
5288 strcpy((char*)&spec[1], gspec + spec_size);
5289 gspec += next;
5290 cur_data += spec->next;
5291 }
5292 break;
5293 }
5294 default:
5295 ret = -TARGET_EINVAL;
dec0473d 5296 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 5297 goto out;
5298 }
5299 unlock_user(argptr, guest_data, 0);
5300
49ca6f3e 5301 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
56e904ec
AG		 5302 if (!is_error(ret)) {
5303 guest_data = arg + host_dm->data_start;
5304 guest_data_size = host_dm->data_size - host_dm->data_start;
5305 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
5306 switch (ie->host_cmd) {
5307 case DM_REMOVE_ALL:
5308 case DM_DEV_CREATE:
5309 case DM_DEV_REMOVE:
5310 case DM_DEV_RENAME:
5311 case DM_DEV_SUSPEND:
5312 case DM_DEV_STATUS:
5313 case DM_TABLE_LOAD:
5314 case DM_TABLE_CLEAR:
5315 case DM_TARGET_MSG:
5316 case DM_DEV_SET_GEOMETRY:
5317 /* no return data */
5318 break;
5319 case DM_LIST_DEVICES:
5320 {
5321 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
5322 uint32_t remaining_data = guest_data_size;
5323 void *cur_data = argptr;
5324 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
5325 int nl_size = 12; /* can't use thunk_size due to alignment */
5326
5327 while (1) {
5328 uint32_t next = nl->next;
5329 if (next) {
5330 nl->next = nl_size + (strlen(nl->name) + 1);
5331 }
5332 if (remaining_data < nl->next) {
5333 host_dm->flags |= DM_BUFFER_FULL_FLAG;
5334 break;
5335 }
5336 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
5337 strcpy(cur_data + nl_size, nl->name);
5338 cur_data += nl->next;
5339 remaining_data -= nl->next;
5340 if (!next) {
5341 break;
5342 }
5343 nl = (void*)nl + next;
5344 }
5345 break;
5346 }
5347 case DM_DEV_WAIT:
5348 case DM_TABLE_STATUS:
5349 {
5350 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
5351 void *cur_data = argptr;
5352 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
5353 int spec_size = thunk_type_size(arg_type, 0);
5354 int i;
5355
5356 for (i = 0; i < host_dm->target_count; i++) {
5357 uint32_t next = spec->next;
5358 int slen = strlen((char*)&spec[1]) + 1;
5359 spec->next = (cur_data - argptr) + spec_size + slen;
5360 if (guest_data_size < spec->next) {
5361 host_dm->flags |= DM_BUFFER_FULL_FLAG;
5362 break;
5363 }
5364 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
5365 strcpy(cur_data + spec_size, (char*)&spec[1]);
5366 cur_data = argptr + spec->next;
5367 spec = (void*)host_dm + host_dm->data_start + next;
5368 }
5369 break;
5370 }
5371 case DM_TABLE_DEPS:
5372 {
5373 void *hdata = (void*)host_dm + host_dm->data_start;
5374 int count = *(uint32_t*)hdata;
5375 uint64_t *hdev = hdata + 8;
5376 uint64_t *gdev = argptr + 8;
5377 int i;
5378
5379 *(uint32_t*)argptr = tswap32(count);
5380 for (i = 0; i < count; i++) {
5381 *gdev = tswap64(*hdev);
5382 gdev++;
5383 hdev++;
5384 }
5385 break;
5386 }
5387 case DM_LIST_VERSIONS:
5388 {
5389 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
5390 uint32_t remaining_data = guest_data_size;
5391 void *cur_data = argptr;
5392 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
5393 int vers_size = thunk_type_size(arg_type, 0);
5394
5395 while (1) {
5396 uint32_t next = vers->next;
5397 if (next) {
5398 vers->next = vers_size + (strlen(vers->name) + 1);
5399 }
5400 if (remaining_data < vers->next) {
5401 host_dm->flags |= DM_BUFFER_FULL_FLAG;
5402 break;
5403 }
5404 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
5405 strcpy(cur_data + vers_size, vers->name);
5406 cur_data += vers->next;
5407 remaining_data -= vers->next;
5408 if (!next) {
5409 break;
5410 }
5411 vers = (void*)vers + next;
5412 }
5413 break;
5414 }
5415 default:
dec0473d 5416 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 5417 ret = -TARGET_EINVAL;
5418 goto out;
5419 }
5420 unlock_user(argptr, guest_data, guest_data_size);
5421
5422 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5423 if (!argptr) {
5424 ret = -TARGET_EFAULT;
5425 goto out;
5426 }
5427 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
5428 unlock_user(argptr, arg, target_size);
5429 }
5430out:
ad11ad77 5431 g_free(big_buf);
56e904ec
AG		 5432 return ret;
5433}
5434
a59b5e35 5435static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 5436 int cmd, abi_long arg)
a59b5e35
AG		 5437{
5438 void *argptr;
5439 int target_size;
5440 const argtype *arg_type = ie->arg_type;
5441 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
5442 abi_long ret;
5443
5444 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
5445 struct blkpg_partition host_part;
5446
5447 /* Read and convert blkpg */
5448 arg_type++;
5449 target_size = thunk_type_size(arg_type, 0);
5450 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5451 if (!argptr) {
5452 ret = -TARGET_EFAULT;
5453 goto out;
5454 }
5455 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
5456 unlock_user(argptr, arg, 0);
5457
5458 switch (host_blkpg->op) {
5459 case BLKPG_ADD_PARTITION:
5460 case BLKPG_DEL_PARTITION:
5461 /* payload is struct blkpg_partition */
5462 break;
5463 default:
5464 /* Unknown opcode */
5465 ret = -TARGET_EINVAL;
5466 goto out;
5467 }
5468
5469 /* Read and convert blkpg->data */
5470 arg = (abi_long)(uintptr_t)host_blkpg->data;
5471 target_size = thunk_type_size(part_arg_type, 0);
5472 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5473 if (!argptr) {
5474 ret = -TARGET_EFAULT;
5475 goto out;
5476 }
5477 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
5478 unlock_user(argptr, arg, 0);
5479
5480 /* Swizzle the data pointer to our local copy and call! */
5481 host_blkpg->data = &host_part;
49ca6f3e 5482 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
a59b5e35
AG		 5483
5484out:
5485 return ret;
5486}
5487
7ff7b666 5488static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 5489 int fd, int cmd, abi_long arg)
7ff7b666
LV		 5490{
5491 const argtype *arg_type = ie->arg_type;
5492 const StructEntry *se;
5493 const argtype *field_types;
5494 const int *dst_offsets, *src_offsets;
5495 int target_size;
5496 void *argptr;
b78c522a
MAL		 5497 abi_ulong *target_rt_dev_ptr = NULL;
5498 unsigned long *host_rt_dev_ptr = NULL;
7ff7b666
LV		 5499 abi_long ret;
5500 int i;
5501
5502 assert(ie->access == IOC_W);
5503 assert(*arg_type == TYPE_PTR);
5504 arg_type++;
5505 assert(*arg_type == TYPE_STRUCT);
5506 target_size = thunk_type_size(arg_type, 0);
5507 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5508 if (!argptr) {
5509 return -TARGET_EFAULT;
5510 }
5511 arg_type++;
5512 assert(*arg_type == (int)STRUCT_rtentry);
5513 se = struct_entries + *arg_type++;
5514 assert(se->convert[0] == NULL);
5515 /* convert struct here to be able to catch rt_dev string */
5516 field_types = se->field_types;
5517 dst_offsets = se->field_offsets[THUNK_HOST];
5518 src_offsets = se->field_offsets[THUNK_TARGET];
5519 for (i = 0; i < se->nb_fields; i++) {
5520 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
5521 assert(*field_types == TYPE_PTRVOID);
5522 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
5523 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
5524 if (*target_rt_dev_ptr != 0) {
5525 *host_rt_dev_ptr = (unsigned long)lock_user_string(
5526 tswapal(*target_rt_dev_ptr));
5527 if (!*host_rt_dev_ptr) {
5528 unlock_user(argptr, arg, 0);
5529 return -TARGET_EFAULT;
5530 }
5531 } else {
5532 *host_rt_dev_ptr = 0;
5533 }
5534 field_types++;
5535 continue;
5536 }
5537 field_types = thunk_convert(buf_temp + dst_offsets[i],
5538 argptr + src_offsets[i],
5539 field_types, THUNK_HOST);
5540 }
5541 unlock_user(argptr, arg, 0);
5542
49ca6f3e 5543 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
b78c522a
MAL		 5544
5545 assert(host_rt_dev_ptr != NULL);
5546 assert(target_rt_dev_ptr != NULL);
7ff7b666
LV		 5547 if (*host_rt_dev_ptr != 0) {
5548 unlock_user((void *)*host_rt_dev_ptr,
5549 *target_rt_dev_ptr, 0);
5550 }
5551 return ret;
5552}
5553
ca56f5b5 5554static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 5555 int fd, int cmd, abi_long arg)
ca56f5b5
PB		 5556{
5557 int sig = target_to_host_signal(arg);
49ca6f3e 5558 return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
ca56f5b5
PB		 5559}
5560
6d5d5dde
DB		 5561static abi_long do_ioctl_SIOCGSTAMP(const IOCTLEntry *ie, uint8_t *buf_temp,
5562 int fd, int cmd, abi_long arg)
5563{
5564 struct timeval tv;
5565 abi_long ret;
5566
5567 ret = get_errno(safe_ioctl(fd, SIOCGSTAMP, &tv));
5568 if (is_error(ret)) {
5569 return ret;
5570 }
5571
5572 if (cmd == (int)TARGET_SIOCGSTAMP_OLD) {
5573 if (copy_to_user_timeval(arg, &tv)) {
5574 return -TARGET_EFAULT;
5575 }
5576 } else {
5577 if (copy_to_user_timeval64(arg, &tv)) {
5578 return -TARGET_EFAULT;
5579 }
5580 }
5581
5582 return ret;
5583}
5584
5585static abi_long do_ioctl_SIOCGSTAMPNS(const IOCTLEntry *ie, uint8_t *buf_temp,
5586 int fd, int cmd, abi_long arg)
5587{
5588 struct timespec ts;
5589 abi_long ret;
5590
5591 ret = get_errno(safe_ioctl(fd, SIOCGSTAMPNS, &ts));
5592 if (is_error(ret)) {
5593 return ret;
5594 }
5595
5596 if (cmd == (int)TARGET_SIOCGSTAMPNS_OLD) {
5597 if (host_to_target_timespec(arg, &ts)) {
5598 return -TARGET_EFAULT;
5599 }
5600 } else{
5601 if (host_to_target_timespec64(arg, &ts)) {
5602 return -TARGET_EFAULT;
5603 }
5604 }
5605
5606 return ret;
5607}
5608
2b74f621
AS		 5609#ifdef TIOCGPTPEER
5610static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
5611 int fd, int cmd, abi_long arg)
5612{
5613 int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
5614 return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
5615}
5616#endif
5617
e865b97f
CG		 5618#ifdef HAVE_DRM_H
5619
5620static void unlock_drm_version(struct drm_version *host_ver,
5621 struct target_drm_version *target_ver,
5622 bool copy)
5623{
5624 unlock_user(host_ver->name, target_ver->name,
5625 copy ? host_ver->name_len : 0);
5626 unlock_user(host_ver->date, target_ver->date,
5627 copy ? host_ver->date_len : 0);
5628 unlock_user(host_ver->desc, target_ver->desc,
5629 copy ? host_ver->desc_len : 0);
5630}
5631
5632static inline abi_long target_to_host_drmversion(struct drm_version *host_ver,
5633 struct target_drm_version *target_ver)
5634{
5635 memset(host_ver, 0, sizeof(*host_ver));
5636
5637 __get_user(host_ver->name_len, &target_ver->name_len);
5638 if (host_ver->name_len) {
5639 host_ver->name = lock_user(VERIFY_WRITE, target_ver->name,
5640 target_ver->name_len, 0);
5641 if (!host_ver->name) {
5642 return -EFAULT;
5643 }
5644 }
5645
5646 __get_user(host_ver->date_len, &target_ver->date_len);
5647 if (host_ver->date_len) {
5648 host_ver->date = lock_user(VERIFY_WRITE, target_ver->date,
5649 target_ver->date_len, 0);
5650 if (!host_ver->date) {
5651 goto err;
5652 }
5653 }
5654
5655 __get_user(host_ver->desc_len, &target_ver->desc_len);
5656 if (host_ver->desc_len) {
5657 host_ver->desc = lock_user(VERIFY_WRITE, target_ver->desc,
5658 target_ver->desc_len, 0);
5659 if (!host_ver->desc) {
5660 goto err;
5661 }
5662 }
5663
5664 return 0;
5665err:
5666 unlock_drm_version(host_ver, target_ver, false);
5667 return -EFAULT;
5668}
5669
5670static inline void host_to_target_drmversion(
5671 struct target_drm_version *target_ver,
5672 struct drm_version *host_ver)
5673{
5674 __put_user(host_ver->version_major, &target_ver->version_major);
5675 __put_user(host_ver->version_minor, &target_ver->version_minor);
5676 __put_user(host_ver->version_patchlevel, &target_ver->version_patchlevel);
5677 __put_user(host_ver->name_len, &target_ver->name_len);
5678 __put_user(host_ver->date_len, &target_ver->date_len);
5679 __put_user(host_ver->desc_len, &target_ver->desc_len);
5680 unlock_drm_version(host_ver, target_ver, true);
5681}
5682
5683static abi_long do_ioctl_drm(const IOCTLEntry *ie, uint8_t *buf_temp,
5684 int fd, int cmd, abi_long arg)
5685{
5686 struct drm_version *ver;
5687 struct target_drm_version *target_ver;
5688 abi_long ret;
5689
5690 switch (ie->host_cmd) {
5691 case DRM_IOCTL_VERSION:
5692 if (!lock_user_struct(VERIFY_WRITE, target_ver, arg, 0)) {
5693 return -TARGET_EFAULT;
5694 }
5695 ver = (struct drm_version *)buf_temp;
5696 ret = target_to_host_drmversion(ver, target_ver);
5697 if (!is_error(ret)) {
5698 ret = get_errno(safe_ioctl(fd, ie->host_cmd, ver));
5699 if (is_error(ret)) {
5700 unlock_drm_version(ver, target_ver, false);
5701 } else {
5702 host_to_target_drmversion(target_ver, ver);
5703 }
5704 }
5705 unlock_user_struct(target_ver, arg, 0);
5706 return ret;
5707 }
5708 return -TARGET_ENOSYS;
5709}
5710
913b03c2
CG		 5711static abi_long do_ioctl_drm_i915_getparam(const IOCTLEntry *ie,
5712 struct drm_i915_getparam *gparam,
5713 int fd, abi_long arg)
5714{
5715 abi_long ret;
5716 int value;
5717 struct target_drm_i915_getparam *target_gparam;
5718
5719 if (!lock_user_struct(VERIFY_READ, target_gparam, arg, 0)) {
5720 return -TARGET_EFAULT;
5721 }
5722
5723 __get_user(gparam->param, &target_gparam->param);
5724 gparam->value = &value;
5725 ret = get_errno(safe_ioctl(fd, ie->host_cmd, gparam));
5726 put_user_s32(value, target_gparam->value);
5727
5728 unlock_user_struct(target_gparam, arg, 0);
5729 return ret;
5730}
5731
5732static abi_long do_ioctl_drm_i915(const IOCTLEntry *ie, uint8_t *buf_temp,
5733 int fd, int cmd, abi_long arg)
5734{
5735 switch (ie->host_cmd) {
5736 case DRM_IOCTL_I915_GETPARAM:
5737 return do_ioctl_drm_i915_getparam(ie,
5738 (struct drm_i915_getparam *)buf_temp,
5739 fd, arg);
5740 default:
5741 return -TARGET_ENOSYS;
5742 }
5743}
5744
e865b97f
CG		 5745#endif
5746
6addf06a
SCW		 5747static abi_long do_ioctl_TUNSETTXFILTER(const IOCTLEntry *ie, uint8_t *buf_temp,
5748 int fd, int cmd, abi_long arg)
5749{
5750 struct tun_filter *filter = (struct tun_filter *)buf_temp;
5751 struct tun_filter *target_filter;
5752 char *target_addr;
5753
5754 assert(ie->access == IOC_W);
5755
5756 target_filter = lock_user(VERIFY_READ, arg, sizeof(*target_filter), 1);
5757 if (!target_filter) {
5758 return -TARGET_EFAULT;
5759 }
5760 filter->flags = tswap16(target_filter->flags);
5761 filter->count = tswap16(target_filter->count);
5762 unlock_user(target_filter, arg, 0);
5763
5764 if (filter->count) {
5765 if (offsetof(struct tun_filter, addr) + filter->count * ETH_ALEN >
5766 MAX_STRUCT_SIZE) {
5767 return -TARGET_EFAULT;
5768 }
5769
5770 target_addr = lock_user(VERIFY_READ,
5771 arg + offsetof(struct tun_filter, addr),
5772 filter->count * ETH_ALEN, 1);
5773 if (!target_addr) {
5774 return -TARGET_EFAULT;
5775 }
5776 memcpy(filter->addr, target_addr, filter->count * ETH_ALEN);
5777 unlock_user(target_addr, arg + offsetof(struct tun_filter, addr), 0);
5778 }
5779
5780 return get_errno(safe_ioctl(fd, ie->host_cmd, filter));
5781}
5782
79482e59 5783IOCTLEntry ioctl_entries[] = {
001faf32 5784#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 5785 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
5786#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
5787 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
8cb762fe
HD		 5788#define IOCTL_IGNORE(cmd) \
5789 { TARGET_ ## cmd, 0, #cmd },
31e31b8a
FB		 5790#include "ioctls.h"
5791 { 0, 0, },
5792};
5793
53a5960a 5794/* ??? Implement proper locking for ioctls. */
0da46a6e 5795/* do_ioctl() Must return target values and target errnos. */
45c874eb 5796static abi_long do_ioctl(int fd, int cmd, abi_long arg)
31e31b8a
FB		 5797{
5798 const IOCTLEntry *ie;
5799 const argtype *arg_type;
992f48a0 5800 abi_long ret;
31e31b8a 5801 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 5802 int target_size;
5803 void *argptr;
31e31b8a
FB		 5804
5805 ie = ioctl_entries;
5806 for(;;) {
5807 if (ie->target_cmd == 0) {
39be5350
JK		 5808 qemu_log_mask(
5809 LOG_UNIMP, "Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 5810 return -TARGET_ENOSYS;
31e31b8a
FB		 5811 }
5812 if (ie->target_cmd == cmd)
5813 break;
5814 ie++;
5815 }
5816 arg_type = ie->arg_type;
d2ef05bb
PM		 5817 if (ie->do_ioctl) {
5818 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
8cb762fe
HD		 5819 } else if (!ie->host_cmd) {
5820 /* Some architectures define BSD ioctls in their headers
5821 that are not implemented in Linux. */
5822 return -TARGET_ENOSYS;
d2ef05bb
PM		 5823 }
5824
31e31b8a
FB		 5825 switch(arg_type[0]) {
5826 case TYPE_NULL:
5827 /* no argument */
49ca6f3e 5828 ret = get_errno(safe_ioctl(fd, ie->host_cmd));
31e31b8a
FB		 5829 break;
5830 case TYPE_PTRVOID:
5831 case TYPE_INT:
c858e537
FB		 5832 case TYPE_LONG:
5833 case TYPE_ULONG:
49ca6f3e 5834 ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
31e31b8a
FB		 5835 break;
5836 case TYPE_PTR:
5837 arg_type++;
53a5960a 5838 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 5839 switch(ie->access) {
5840 case IOC_R:
49ca6f3e 5841 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 5842 if (!is_error(ret)) {
579a97f7
FB		 5843 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5844 if (!argptr)
5845 return -TARGET_EFAULT;
53a5960a
PB		 5846 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
5847 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 5848 }
5849 break;
5850 case IOC_W:
579a97f7
FB		 5851 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5852 if (!argptr)
5853 return -TARGET_EFAULT;
53a5960a
PB		 5854 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
5855 unlock_user(argptr, arg, 0);
49ca6f3e 5856 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a
FB		 5857 break;
5858 default:
5859 case IOC_RW:
579a97f7
FB		 5860 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5861 if (!argptr)
5862 return -TARGET_EFAULT;
53a5960a
PB		 5863 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
5864 unlock_user(argptr, arg, 0);
49ca6f3e 5865 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 5866 if (!is_error(ret)) {
579a97f7
FB		 5867 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5868 if (!argptr)
5869 return -TARGET_EFAULT;
53a5960a
PB		 5870 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
5871 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 5872 }
5873 break;
5874 }
5875 break;
5876 default:
39be5350
JK		 5877 qemu_log_mask(LOG_UNIMP,
5878 "Unsupported ioctl type: cmd=0x%04lx type=%d\n",
5879 (long)cmd, arg_type[0]);
0da46a6e 5880 ret = -TARGET_ENOSYS;
31e31b8a
FB		 5881 break;
5882 }
5883 return ret;
5884}
5885
b39bc503 5886static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 5887 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
5888 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
5889 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
5890 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
5891 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
5892 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
5893 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
5894 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
5895 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
5896 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
5897 { TARGET_IXON, TARGET_IXON, IXON, IXON },
5898 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
5899 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
5900 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
c218b4ed 5901 { TARGET_IUTF8, TARGET_IUTF8, IUTF8, IUTF8},
31e31b8a
FB		 5902 { 0, 0, 0, 0 }
5903};
5904
b39bc503 5905static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 5906 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
5907 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
5908 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
5909 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
5910 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
5911 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
5912 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
5913 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
5914 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
5915 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
5916 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
5917 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
5918 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
5919 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
5920 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
5921 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
5922 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
5923 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
5924 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
5925 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
5926 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
5927 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
5928 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
5929 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
5930 { 0, 0, 0, 0 }
5931};
5932
b39bc503 5933static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 5934 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
5935 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
5936 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
5937 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
5938 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
5939 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
5940 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
5941 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
5942 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
5943 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
5944 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
5945 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
5946 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
5947 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
5948 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
5949 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
5950 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
5951 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
5952 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
5953 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
5954 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
5955 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
5956 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
5957 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
5958 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
5959 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
5960 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
5961 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
5962 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
5963 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
5964 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
5965 { 0, 0, 0, 0 }
5966};
5967
b39bc503 5968static const bitmask_transtbl lflag_tbl[] = {
c218b4ed
FB		 5969 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
5970 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
5971 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
5972 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
5973 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
5974 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
5975 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
5976 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
5977 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
5978 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
5979 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
5980 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
5981 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
5982 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
5983 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
5984 { TARGET_EXTPROC, TARGET_EXTPROC, EXTPROC, EXTPROC},
5985 { 0, 0, 0, 0 }
31e31b8a
FB		 5986};
5987
5988static void target_to_host_termios (void *dst, const void *src)
5989{
5990 struct host_termios *host = dst;
5991 const struct target_termios *target = src;
3b46e624 5992
5fafdf24 5993 host->c_iflag =
31e31b8a 5994 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 5995 host->c_oflag =
31e31b8a 5996 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 5997 host->c_cflag =
31e31b8a 5998 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 5999 host->c_lflag =
31e31b8a
FB		 6000 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
6001 host->c_line = target->c_line;
3b46e624 6002
44607123 6003 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 6004 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
6005 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 6006 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 6007 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 6008 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 6009 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 6010 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 6011 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 6012 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 6013 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
6014 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 6015 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
6016 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
6017 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
6018 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
6019 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
5fafdf24 6020 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 6021}
3b46e624 6022
31e31b8a
FB		 6023static void host_to_target_termios (void *dst, const void *src)
6024{
6025 struct target_termios *target = dst;
6026 const struct host_termios *host = src;
6027
5fafdf24 6028 target->c_iflag =
31e31b8a 6029 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 6030 target->c_oflag =
31e31b8a 6031 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 6032 target->c_cflag =
31e31b8a 6033 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 6034 target->c_lflag =
31e31b8a
FB		 6035 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
6036 target->c_line = host->c_line;
3b46e624 6037
44607123 6038 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 6039 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
6040 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
6041 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
6042 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
6043 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
6044 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
6045 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
6046 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
6047 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
6048 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
6049 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
6050 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
6051 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
6052 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
6053 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
6054 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
6055 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
6056}
6057
8e853dc7 6058static const StructEntry struct_termios_def = {
31e31b8a
FB		 6059 .convert = { host_to_target_termios, target_to_host_termios },
6060 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
6061 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
888468db 6062 .print = print_termios,
31e31b8a
FB		 6063};
6064
5286db75 6065static bitmask_transtbl mmap_flags_tbl[] = {
541e1690
HD		 6066 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
6067 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
6068 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
6069 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
6070 MAP_ANONYMOUS, MAP_ANONYMOUS },
6071 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
6072 MAP_GROWSDOWN, MAP_GROWSDOWN },
6073 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
6074 MAP_DENYWRITE, MAP_DENYWRITE },
6075 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
6076 MAP_EXECUTABLE, MAP_EXECUTABLE },
6077 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
6078 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
6079 MAP_NORESERVE, MAP_NORESERVE },
6080 { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
6081 /* MAP_STACK had been ignored by the kernel for quite some time.
6082 Recognize it for the target insofar as we do not want to pass
6083 it through to the host. */
6084 { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
6085 { 0, 0, 0, 0 }
5286db75
FB		 6086};
6087
9d12f79d
LV		 6088/*
6089 * NOTE: TARGET_ABI32 is defined for TARGET_I386 (but not for TARGET_X86_64)
6090 * TARGET_I386 is defined if TARGET_X86_64 is defined
6091 */
2ab83ea7 6092#if defined(TARGET_I386)
6dbad63e
FB		 6093
6094/* NOTE: there is really one LDT for all the threads */
b1d8e52e 6095static uint8_t *ldt_table;
6dbad63e 6096
03acab66 6097static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 6098{
6099 int size;
53a5960a 6100 void *p;
6dbad63e
FB		 6101
6102 if (!ldt_table)
6103 return 0;
6104 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
6105 if (size > bytecount)
6106 size = bytecount;
579a97f7
FB		 6107 p = lock_user(VERIFY_WRITE, ptr, size, 0);
6108 if (!p)
03acab66 6109 return -TARGET_EFAULT;
579a97f7 6110 /* ??? Should this by byteswapped? */
53a5960a
PB		 6111 memcpy(p, ldt_table, size);
6112 unlock_user(p, ptr, size);
6dbad63e
FB		 6113 return size;
6114}
6115
6116/* XXX: add locking support */
03acab66
FB		 6117static abi_long write_ldt(CPUX86State *env,
6118 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 6119{
6120 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 6121 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 6122 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 6123 int seg_not_present, useable, lm;
6dbad63e
FB		 6124 uint32_t *lp, entry_1, entry_2;
6125
6126 if (bytecount != sizeof(ldt_info))
03acab66 6127 return -TARGET_EINVAL;
579a97f7 6128 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 6129 return -TARGET_EFAULT;
53a5960a 6130 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 6131 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 6132 ldt_info.limit = tswap32(target_ldt_info->limit);
6133 ldt_info.flags = tswap32(target_ldt_info->flags);
6134 unlock_user_struct(target_ldt_info, ptr, 0);
3b46e624 6135
6dbad63e 6136 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 6137 return -TARGET_EINVAL;
6dbad63e
FB		 6138 seg_32bit = ldt_info.flags & 1;
6139 contents = (ldt_info.flags >> 1) & 3;
6140 read_exec_only = (ldt_info.flags >> 3) & 1;
6141 limit_in_pages = (ldt_info.flags >> 4) & 1;
6142 seg_not_present = (ldt_info.flags >> 5) & 1;
6143 useable = (ldt_info.flags >> 6) & 1;
8d18e893
FB		 6144#ifdef TARGET_ABI32
6145 lm = 0;
6146#else
6147 lm = (ldt_info.flags >> 7) & 1;
6148#endif
6dbad63e
FB		 6149 if (contents == 3) {
6150 if (oldmode)
03acab66 6151 return -TARGET_EINVAL;
6dbad63e 6152 if (seg_not_present == 0)
03acab66 6153 return -TARGET_EINVAL;
6dbad63e
FB		 6154 }
6155 /* allocate the LDT */
6156 if (!ldt_table) {
e441570f
AZ		 6157 env->ldt.base = target_mmap(0,
6158 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
6159 PROT_READ|PROT_WRITE,
6160 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
6161 if (env->ldt.base == -1)
03acab66 6162 return -TARGET_ENOMEM;
3e8f1628 6163 memset(g2h_untagged(env->ldt.base), 0,
e441570f 6164 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 6165 env->ldt.limit = 0xffff;
3e8f1628 6166 ldt_table = g2h_untagged(env->ldt.base);
6dbad63e
FB		 6167 }
6168
6169 /* NOTE: same code as Linux kernel */
6170 /* Allow LDTs to be cleared by the user. */
6171 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
6172 if (oldmode ||
6173 (contents == 0 &&
6174 read_exec_only == 1 &&
6175 seg_32bit == 0 &&
6176 limit_in_pages == 0 &&
6177 seg_not_present == 1 &&
6178 useable == 0 )) {
6179 entry_1 = 0;
6180 entry_2 = 0;
6181 goto install;
6182 }
6183 }
3b46e624 6184
6dbad63e
FB		 6185 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
6186 (ldt_info.limit & 0x0ffff);
6187 entry_2 = (ldt_info.base_addr & 0xff000000) |
6188 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
6189 (ldt_info.limit & 0xf0000) |
6190 ((read_exec_only ^ 1) << 9) |
6191 (contents << 10) |
6192 ((seg_not_present ^ 1) << 15) |
6193 (seg_32bit << 22) |
6194 (limit_in_pages << 23) |
8d18e893 6195 (lm << 21) |
6dbad63e
FB		 6196 0x7000;
6197 if (!oldmode)
6198 entry_2 |= (useable << 20);
14ae3ba7 6199
6dbad63e
FB		 6200 /* Install the new entry ... */
6201install:
6202 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
6203 lp[0] = tswap32(entry_1);
6204 lp[1] = tswap32(entry_2);
6205 return 0;
6206}
6207
6208/* specific and weird i386 syscalls */
8fcd3692
BS		 6209static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
6210 unsigned long bytecount)
6dbad63e 6211{
03acab66 6212 abi_long ret;
3b46e624 6213
6dbad63e
FB		 6214 switch (func) {
6215 case 0:
6216 ret = read_ldt(ptr, bytecount);
6217 break;
6218 case 1:
6219 ret = write_ldt(env, ptr, bytecount, 1);
6220 break;
6221 case 0x11:
6222 ret = write_ldt(env, ptr, bytecount, 0);
6223 break;
03acab66
FB		 6224 default:
6225 ret = -TARGET_ENOSYS;
6226 break;
6dbad63e
FB		 6227 }
6228 return ret;
6229}
1b6b029e 6230
9d12f79d 6231#if defined(TARGET_ABI32)
bc22eb44 6232abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893 6233{
3e8f1628 6234 uint64_t *gdt_table = g2h_untagged(env->gdt.base);
8d18e893
FB		 6235 struct target_modify_ldt_ldt_s ldt_info;
6236 struct target_modify_ldt_ldt_s *target_ldt_info;
6237 int seg_32bit, contents, read_exec_only, limit_in_pages;
6238 int seg_not_present, useable, lm;
6239 uint32_t *lp, entry_1, entry_2;
6240 int i;
6241
6242 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
6243 if (!target_ldt_info)
6244 return -TARGET_EFAULT;
6245 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 6246 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 6247 ldt_info.limit = tswap32(target_ldt_info->limit);
6248 ldt_info.flags = tswap32(target_ldt_info->flags);
6249 if (ldt_info.entry_number == -1) {
6250 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
6251 if (gdt_table[i] == 0) {
6252 ldt_info.entry_number = i;
6253 target_ldt_info->entry_number = tswap32(i);
6254 break;
6255 }
6256 }
6257 }
6258 unlock_user_struct(target_ldt_info, ptr, 1);
6259
6260 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
6261 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
6262 return -TARGET_EINVAL;
6263 seg_32bit = ldt_info.flags & 1;
6264 contents = (ldt_info.flags >> 1) & 3;
6265 read_exec_only = (ldt_info.flags >> 3) & 1;
6266 limit_in_pages = (ldt_info.flags >> 4) & 1;
6267 seg_not_present = (ldt_info.flags >> 5) & 1;
6268 useable = (ldt_info.flags >> 6) & 1;
6269#ifdef TARGET_ABI32
6270 lm = 0;
6271#else
6272 lm = (ldt_info.flags >> 7) & 1;
6273#endif
6274
6275 if (contents == 3) {
6276 if (seg_not_present == 0)
6277 return -TARGET_EINVAL;
6278 }
6279
6280 /* NOTE: same code as Linux kernel */
6281 /* Allow LDTs to be cleared by the user. */
6282 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
6283 if ((contents == 0 &&
6284 read_exec_only == 1 &&
6285 seg_32bit == 0 &&
6286 limit_in_pages == 0 &&
6287 seg_not_present == 1 &&
6288 useable == 0 )) {
6289 entry_1 = 0;
6290 entry_2 = 0;
6291 goto install;
6292 }
6293 }
6294
6295 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
6296 (ldt_info.limit & 0x0ffff);
6297 entry_2 = (ldt_info.base_addr & 0xff000000) |
6298 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
6299 (ldt_info.limit & 0xf0000) |
6300 ((read_exec_only ^ 1) << 9) |
6301 (contents << 10) |
6302 ((seg_not_present ^ 1) << 15) |
6303 (seg_32bit << 22) |
6304 (limit_in_pages << 23) |
6305 (useable << 20) |
6306 (lm << 21) |
6307 0x7000;
6308
6309 /* Install the new entry ... */
6310install:
6311 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
6312 lp[0] = tswap32(entry_1);
6313 lp[1] = tswap32(entry_2);
6314 return 0;
6315}
6316
8fcd3692 6317static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 6318{
6319 struct target_modify_ldt_ldt_s *target_ldt_info;
3e8f1628 6320 uint64_t *gdt_table = g2h_untagged(env->gdt.base);
8d18e893
FB		 6321 uint32_t base_addr, limit, flags;
6322 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
6323 int seg_not_present, useable, lm;
6324 uint32_t *lp, entry_1, entry_2;
6325
6326 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
6327 if (!target_ldt_info)
6328 return -TARGET_EFAULT;
6329 idx = tswap32(target_ldt_info->entry_number);
6330 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
6331 idx > TARGET_GDT_ENTRY_TLS_MAX) {
6332 unlock_user_struct(target_ldt_info, ptr, 1);
6333 return -TARGET_EINVAL;
6334 }
6335 lp = (uint32_t *)(gdt_table + idx);
6336 entry_1 = tswap32(lp[0]);
6337 entry_2 = tswap32(lp[1]);
6338
6339 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
6340 contents = (entry_2 >> 10) & 3;
6341 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
6342 seg_32bit = (entry_2 >> 22) & 1;
6343 limit_in_pages = (entry_2 >> 23) & 1;
6344 useable = (entry_2 >> 20) & 1;
6345#ifdef TARGET_ABI32
6346 lm = 0;
6347#else
6348 lm = (entry_2 >> 21) & 1;
6349#endif
6350 flags = (seg_32bit << 0) | (contents << 1) |
6351 (read_exec_only << 3) | (limit_in_pages << 4) |
6352 (seg_not_present << 5) | (useable << 6) | (lm << 7);
6353 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
6354 base_addr = (entry_1 >> 16) |
6355 (entry_2 & 0xff000000) |
6356 ((entry_2 & 0xff) << 16);
cbb21eed 6357 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 6358 target_ldt_info->limit = tswap32(limit);
6359 target_ldt_info->flags = tswap32(flags);
6360 unlock_user_struct(target_ldt_info, ptr, 1);
6361 return 0;
6362}
6363
9d12f79d
LV		 6364abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
6365{
538fabcb 6366 return -TARGET_ENOSYS;
9d12f79d
LV		 6367}
6368#else
2667e71c 6369abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 6370{
1add8698 6371 abi_long ret = 0;
d2fd1af7
FB		 6372 abi_ulong val;
6373 int idx;
1add8698 6374
d2fd1af7
FB		 6375 switch(code) {
6376 case TARGET_ARCH_SET_GS:
6377 case TARGET_ARCH_SET_FS:
6378 if (code == TARGET_ARCH_SET_GS)
6379 idx = R_GS;
6380 else
6381 idx = R_FS;
6382 cpu_x86_load_seg(env, idx, 0);
6383 env->segs[idx].base = addr;
6384 break;
6385 case TARGET_ARCH_GET_GS:
6386 case TARGET_ARCH_GET_FS:
6387 if (code == TARGET_ARCH_GET_GS)
6388 idx = R_GS;
6389 else
6390 idx = R_FS;
6391 val = env->segs[idx].base;
6392 if (put_user(val, addr, abi_ulong))
1add8698 6393 ret = -TARGET_EFAULT;
d2fd1af7
FB		 6394 break;
6395 default:
6396 ret = -TARGET_EINVAL;
6397 break;
6398 }
1add8698 6399 return ret;
d2fd1af7 6400}
9d12f79d 6401#endif /* defined(TARGET_ABI32 */
d2fd1af7 6402
2ab83ea7
FB		 6403#endif /* defined(TARGET_I386) */
6404
05098a93 6405#define NEW_STACK_SIZE 0x40000
d865bab5 6406
d865bab5
PB		 6407
6408static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
6409typedef struct {
9349b4f9 6410 CPUArchState *env;
d865bab5
PB		 6411 pthread_mutex_t mutex;
6412 pthread_cond_t cond;
6413 pthread_t thread;
6414 uint32_t tid;
6415 abi_ulong child_tidptr;
6416 abi_ulong parent_tidptr;
6417 sigset_t sigmask;
6418} new_thread_info;
6419
6420static void *clone_func(void *arg)
6421{
6422 new_thread_info *info = arg;
9349b4f9 6423 CPUArchState *env;
0d34282f 6424 CPUState *cpu;
edf8e2af 6425 TaskState *ts;
d865bab5 6426
70903763 6427 rcu_register_thread();
3468b59e 6428 tcg_register_thread();
d865bab5 6429 env = info->env;
29a0af61 6430 cpu = env_cpu(env);
a2247f8e 6431 thread_cpu = cpu;
0429a971 6432 ts = (TaskState *)cpu->opaque;
71ba74f6 6433 info->tid = sys_gettid();
edf8e2af 6434 task_settid(ts);
d865bab5
PB		 6435 if (info->child_tidptr)
6436 put_user_u32(info->tid, info->child_tidptr);
6437 if (info->parent_tidptr)
6438 put_user_u32(info->tid, info->parent_tidptr);
5ebdd774 6439 qemu_guest_random_seed_thread_part2(cpu->random_seed);
d865bab5
PB		 6440 /* Enable signals. */
6441 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
6442 /* Signal to the parent that we're ready. */
6443 pthread_mutex_lock(&info->mutex);
6444 pthread_cond_broadcast(&info->cond);
6445 pthread_mutex_unlock(&info->mutex);
a4dd3d51 6446 /* Wait until the parent has finished initializing the tls state. */
d865bab5
PB		 6447 pthread_mutex_lock(&clone_lock);
6448 pthread_mutex_unlock(&clone_lock);
6449 cpu_loop(env);
6450 /* never exits */
6451 return NULL;
6452}
1b6b029e 6453
0da46a6e
TS		 6454/* do_fork() Must return host values and target errnos (unlike most
6455 do_*() functions). */
9349b4f9 6456static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 6457 abi_ulong parent_tidptr, target_ulong newtls,
6458 abi_ulong child_tidptr)
1b6b029e 6459{
29a0af61 6460 CPUState *cpu = env_cpu(env);
1b6b029e 6461 int ret;
5cd4393b 6462 TaskState *ts;
0429a971 6463 CPUState *new_cpu;
9349b4f9 6464 CPUArchState *new_env;
d865bab5 6465 sigset_t sigmask;
3b46e624 6466
5ea2fc84
PM		 6467 flags &= ~CLONE_IGNORED_FLAGS;
6468
436d124b
AZ		 6469 /* Emulate vfork() with fork() */
6470 if (flags & CLONE_VFORK)
6471 flags &= ~(CLONE_VFORK | CLONE_VM);
6472
1b6b029e 6473 if (flags & CLONE_VM) {
0429a971 6474 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 6475 new_thread_info info;
6476 pthread_attr_t attr;
24cb36a6 6477
5ea2fc84
PM		 6478 if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
6479 (flags & CLONE_INVALID_THREAD_FLAGS)) {
6480 return -TARGET_EINVAL;
6481 }
6482
c78d65e8 6483 ts = g_new0(TaskState, 1);
624f7979 6484 init_task_state(ts);
73a988d9
MF		 6485
6486 /* Grab a mutex so that thread setup appears atomic. */
6487 pthread_mutex_lock(&clone_lock);
6488
6cc9d67c
RH		 6489 /*
6490 * If this is our first additional thread, we need to ensure we
6491 * generate code for parallel execution and flush old translations.
6492 * Do this now so that the copy gets CF_PARALLEL too.
6493 */
6494 if (!(cpu->tcg_cflags & CF_PARALLEL)) {
6495 cpu->tcg_cflags |= CF_PARALLEL;
6496 tb_flush(cpu);
6497 }
6498
1b6b029e 6499 /* we create a new CPU instance. */
c5be9f08 6500 new_env = cpu_copy(env);
6e68e076 6501 /* Init regs that differ from the parent. */
608999d1 6502 cpu_clone_regs_child(new_env, newsp, flags);
07a6ecf4 6503 cpu_clone_regs_parent(env, flags);
29a0af61 6504 new_cpu = env_cpu(new_env);
0429a971 6505 new_cpu->opaque = ts;
edf8e2af
MW		 6506 ts->bprm = parent_ts->bprm;
6507 ts->info = parent_ts->info;
3d3efba0 6508 ts->signal_mask = parent_ts->signal_mask;
d865bab5 6509
7cfbd386 6510 if (flags & CLONE_CHILD_CLEARTID) {
c2764719
PB		 6511 ts->child_tidptr = child_tidptr;
6512 }
6513
7cfbd386 6514 if (flags & CLONE_SETTLS) {
d865bab5 6515 cpu_set_tls (new_env, newtls);
7cfbd386 6516 }
d865bab5 6517
d865bab5
PB		 6518 memset(&info, 0, sizeof(info));
6519 pthread_mutex_init(&info.mutex, NULL);
6520 pthread_mutex_lock(&info.mutex);
6521 pthread_cond_init(&info.cond, NULL);
6522 info.env = new_env;
7cfbd386 6523 if (flags & CLONE_CHILD_SETTID) {
d865bab5 6524 info.child_tidptr = child_tidptr;
7cfbd386
PM		 6525 }
6526 if (flags & CLONE_PARENT_SETTID) {
d865bab5 6527 info.parent_tidptr = parent_tidptr;
7cfbd386 6528 }
d865bab5
PB		 6529
6530 ret = pthread_attr_init(&attr);
48e15fc2
NF		 6531 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
6532 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 6533 /* It is not safe to deliver signals until the child has finished
6534 initializing, so temporarily block all signals. */
6535 sigfillset(&sigmask);
6536 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5ebdd774 6537 cpu->random_seed = qemu_guest_random_seed_thread_part1();
d865bab5
PB		 6538
6539 ret = pthread_create(&info.thread, &attr, clone_func, &info);
c2764719 6540 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 6541
6542 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
6543 pthread_attr_destroy(&attr);
6544 if (ret == 0) {
6545 /* Wait for the child to initialize. */
6546 pthread_cond_wait(&info.cond, &info.mutex);
6547 ret = info.tid;
d865bab5
PB		 6548 } else {
6549 ret = -1;
6550 }
6551 pthread_mutex_unlock(&info.mutex);
6552 pthread_cond_destroy(&info.cond);
6553 pthread_mutex_destroy(&info.mutex);
6554 pthread_mutex_unlock(&clone_lock);
1b6b029e
FB		 6555 } else {
6556 /* if no CLONE_VM, we consider it is a fork */
5ea2fc84
PM		 6557 if (flags & CLONE_INVALID_FORK_FLAGS) {
6558 return -TARGET_EINVAL;
6559 }
6560
6561 /* We can't support custom termination signals */
6562 if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
93b4eff8
TB		 6563 return -TARGET_EINVAL;
6564 }
7d92d34e
TB		 6565
6566 if (block_signals()) {
6567 return -TARGET_ERESTARTSYS;
6568 }
6569
d865bab5 6570 fork_start();
1b6b029e 6571 ret = fork();
d865bab5 6572 if (ret == 0) {
2b1319c8 6573 /* Child Process. */
608999d1 6574 cpu_clone_regs_child(env, newsp, flags);
d865bab5 6575 fork_end(1);
2b1319c8
AJ		 6576 /* There is a race condition here. The parent process could
6577 theoretically read the TID in the child process before the child
6578 tid is set. This would require using either ptrace
6579 (not implemented) or having *_tidptr to point at a shared memory
6580 mapping. We can't repeat the spinlock hack used above because
6581 the child process gets its own copy of the lock. */
d865bab5 6582 if (flags & CLONE_CHILD_SETTID)
71ba74f6 6583 put_user_u32(sys_gettid(), child_tidptr);
d865bab5 6584 if (flags & CLONE_PARENT_SETTID)
71ba74f6 6585 put_user_u32(sys_gettid(), parent_tidptr);
0429a971 6586 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 6587 if (flags & CLONE_SETTLS)
6588 cpu_set_tls (env, newtls);
c2764719
PB		 6589 if (flags & CLONE_CHILD_CLEARTID)
6590 ts->child_tidptr = child_tidptr;
d865bab5 6591 } else {
07a6ecf4 6592 cpu_clone_regs_parent(env, flags);
d865bab5
PB		 6593 fork_end(0);
6594 }
1b6b029e
FB		 6595 }
6596 return ret;
6597}
6598
5f106811
APR		 6599/* warning : doesn't handle linux specific flags... */
6600static int target_to_host_fcntl_cmd(int cmd)
6601{
4a545761
SB		 6602 int ret;
6603
5f106811 6604 switch(cmd) {
4a545761
SB		 6605 case TARGET_F_DUPFD:
6606 case TARGET_F_GETFD:
6607 case TARGET_F_SETFD:
6608 case TARGET_F_GETFL:
6609 case TARGET_F_SETFL:
2d92c682
AS		 6610 case TARGET_F_OFD_GETLK:
6611 case TARGET_F_OFD_SETLK:
6612 case TARGET_F_OFD_SETLKW:
4a545761
SB		 6613 ret = cmd;
6614 break;
6615 case TARGET_F_GETLK:
6616 ret = F_GETLK64;
6617 break;
6618 case TARGET_F_SETLK:
6619 ret = F_SETLK64;
6620 break;
6621 case TARGET_F_SETLKW:
6622 ret = F_SETLKW64;
6623 break;
6624 case TARGET_F_GETOWN:
6625 ret = F_GETOWN;
6626 break;
6627 case TARGET_F_SETOWN:
6628 ret = F_SETOWN;
6629 break;
6630 case TARGET_F_GETSIG:
6631 ret = F_GETSIG;
6632 break;
6633 case TARGET_F_SETSIG:
6634 ret = F_SETSIG;
6635 break;
5f106811 6636#if TARGET_ABI_BITS == 32
4a545761
SB		 6637 case TARGET_F_GETLK64:
6638 ret = F_GETLK64;
6639 break;
6640 case TARGET_F_SETLK64:
6641 ret = F_SETLK64;
6642 break;
6643 case TARGET_F_SETLKW64:
6644 ret = F_SETLKW64;
6645 break;
5f106811 6646#endif
4a545761
SB		 6647 case TARGET_F_SETLEASE:
6648 ret = F_SETLEASE;
6649 break;
6650 case TARGET_F_GETLEASE:
6651 ret = F_GETLEASE;
6652 break;
fbd5de9b 6653#ifdef F_DUPFD_CLOEXEC
4a545761
SB		 6654 case TARGET_F_DUPFD_CLOEXEC:
6655 ret = F_DUPFD_CLOEXEC;
6656 break;
fbd5de9b 6657#endif
4a545761
SB		 6658 case TARGET_F_NOTIFY:
6659 ret = F_NOTIFY;
6660 break;
8d5d3004 6661#ifdef F_GETOWN_EX
4a545761
SB		 6662 case TARGET_F_GETOWN_EX:
6663 ret = F_GETOWN_EX;
6664 break;
8d5d3004
AS		 6665#endif
6666#ifdef F_SETOWN_EX
4a545761
SB		 6667 case TARGET_F_SETOWN_EX:
6668 ret = F_SETOWN_EX;
6669 break;
8d5d3004 6670#endif
ddf31aa8 6671#ifdef F_SETPIPE_SZ
4a545761
SB		 6672 case TARGET_F_SETPIPE_SZ:
6673 ret = F_SETPIPE_SZ;
6674 break;
6675 case TARGET_F_GETPIPE_SZ:
6676 ret = F_GETPIPE_SZ;
6677 break;
2bb963ff
SCW		 6678#endif
6679#ifdef F_ADD_SEALS
6680 case TARGET_F_ADD_SEALS:
6681 ret = F_ADD_SEALS;
6682 break;
6683 case TARGET_F_GET_SEALS:
6684 ret = F_GET_SEALS;
6685 break;
ddf31aa8 6686#endif
4a545761
SB		 6687 default:
6688 ret = -TARGET_EINVAL;
6689 break;
6690 }
6691
6692#if defined(__powerpc64__)
6693 /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
6694 * is not supported by kernel. The glibc fcntl call actually adjusts
6695 * them to 5, 6 and 7 before making the syscall(). Since we make the
6696 * syscall directly, adjust to what is supported by the kernel.
6697 */
6698 if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
6699 ret -= F_GETLK64 - 5;
5f106811 6700 }
4a545761
SB		 6701#endif
6702
6703 return ret;
5f106811
APR		 6704}
6705
ae68ad9f
LV		 6706#define FLOCK_TRANSTBL \
6707 switch (type) { \
6708 TRANSTBL_CONVERT(F_RDLCK); \
6709 TRANSTBL_CONVERT(F_WRLCK); \
6710 TRANSTBL_CONVERT(F_UNLCK); \
ae68ad9f
LV		 6711 }
6712
6713static int target_to_host_flock(int type)
6714{
6715#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
6716 FLOCK_TRANSTBL
6717#undef TRANSTBL_CONVERT
6718 return -TARGET_EINVAL;
6719}
6720
6721static int host_to_target_flock(int type)
6722{
6723#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
6724 FLOCK_TRANSTBL
6725#undef TRANSTBL_CONVERT
6726 /* if we don't know how to convert the value coming
6727 * from the host we copy to the target field as-is
6728 */
6729 return type;
6730}
2ba7f730 6731
213d3e9e
PM		 6732static inline abi_long copy_from_user_flock(struct flock64 *fl,
6733 abi_ulong target_flock_addr)
7775e9ec 6734{
53a5960a 6735 struct target_flock *target_fl;
ae68ad9f 6736 int l_type;
213d3e9e
PM		 6737
6738 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
6739 return -TARGET_EFAULT;
6740 }
6741
6742 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 6743 l_type = target_to_host_flock(l_type);
6744 if (l_type < 0) {
6745 return l_type;
6746 }
6747 fl->l_type = l_type;
213d3e9e
PM		 6748 __get_user(fl->l_whence, &target_fl->l_whence);
6749 __get_user(fl->l_start, &target_fl->l_start);
6750 __get_user(fl->l_len, &target_fl->l_len);
6751 __get_user(fl->l_pid, &target_fl->l_pid);
6752 unlock_user_struct(target_fl, target_flock_addr, 0);
6753 return 0;
6754}
6755
6756static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
6757 const struct flock64 *fl)
6758{
6759 struct target_flock *target_fl;
6760 short l_type;
6761
6762 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
6763 return -TARGET_EFAULT;
6764 }
6765
ae68ad9f 6766 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 6767 __put_user(l_type, &target_fl->l_type);
6768 __put_user(fl->l_whence, &target_fl->l_whence);
6769 __put_user(fl->l_start, &target_fl->l_start);
6770 __put_user(fl->l_len, &target_fl->l_len);
6771 __put_user(fl->l_pid, &target_fl->l_pid);
6772 unlock_user_struct(target_fl, target_flock_addr, 1);
6773 return 0;
6774}
6775
6776typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
6777typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
6778
6779#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
7f254c5c 6780static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
213d3e9e
PM		 6781 abi_ulong target_flock_addr)
6782{
7f254c5c 6783 struct target_oabi_flock64 *target_fl;
ae68ad9f 6784 int l_type;
213d3e9e
PM		 6785
6786 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
6787 return -TARGET_EFAULT;
6788 }
6789
6790 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 6791 l_type = target_to_host_flock(l_type);
6792 if (l_type < 0) {
6793 return l_type;
6794 }
6795 fl->l_type = l_type;
213d3e9e
PM		 6796 __get_user(fl->l_whence, &target_fl->l_whence);
6797 __get_user(fl->l_start, &target_fl->l_start);
6798 __get_user(fl->l_len, &target_fl->l_len);
6799 __get_user(fl->l_pid, &target_fl->l_pid);
6800 unlock_user_struct(target_fl, target_flock_addr, 0);
6801 return 0;
6802}
6803
7f254c5c 6804static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
213d3e9e
PM		 6805 const struct flock64 *fl)
6806{
7f254c5c 6807 struct target_oabi_flock64 *target_fl;
213d3e9e
PM		 6808 short l_type;
6809
6810 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
6811 return -TARGET_EFAULT;
6812 }
6813
ae68ad9f 6814 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 6815 __put_user(l_type, &target_fl->l_type);
6816 __put_user(fl->l_whence, &target_fl->l_whence);
6817 __put_user(fl->l_start, &target_fl->l_start);
6818 __put_user(fl->l_len, &target_fl->l_len);
6819 __put_user(fl->l_pid, &target_fl->l_pid);
6820 unlock_user_struct(target_fl, target_flock_addr, 1);
6821 return 0;
6822}
6823#endif
6824
6825static inline abi_long copy_from_user_flock64(struct flock64 *fl,
6826 abi_ulong target_flock_addr)
6827{
6828 struct target_flock64 *target_fl;
ae68ad9f 6829 int l_type;
213d3e9e
PM		 6830
6831 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
6832 return -TARGET_EFAULT;
6833 }
6834
6835 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 6836 l_type = target_to_host_flock(l_type);
6837 if (l_type < 0) {
6838 return l_type;
6839 }
6840 fl->l_type = l_type;
213d3e9e
PM		 6841 __get_user(fl->l_whence, &target_fl->l_whence);
6842 __get_user(fl->l_start, &target_fl->l_start);
6843 __get_user(fl->l_len, &target_fl->l_len);
6844 __get_user(fl->l_pid, &target_fl->l_pid);
6845 unlock_user_struct(target_fl, target_flock_addr, 0);
6846 return 0;
6847}
6848
6849static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
6850 const struct flock64 *fl)
6851{
6852 struct target_flock64 *target_fl;
6853 short l_type;
6854
6855 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
6856 return -TARGET_EFAULT;
6857 }
6858
ae68ad9f 6859 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 6860 __put_user(l_type, &target_fl->l_type);
6861 __put_user(fl->l_whence, &target_fl->l_whence);
6862 __put_user(fl->l_start, &target_fl->l_start);
6863 __put_user(fl->l_len, &target_fl->l_len);
6864 __put_user(fl->l_pid, &target_fl->l_pid);
6865 unlock_user_struct(target_fl, target_flock_addr, 1);
6866 return 0;
6867}
6868
6869static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
6870{
43f238d7 6871 struct flock64 fl64;
8d5d3004
AS		 6872#ifdef F_GETOWN_EX
6873 struct f_owner_ex fox;
6874 struct target_f_owner_ex *target_fox;
6875#endif
992f48a0 6876 abi_long ret;
5f106811
APR		 6877 int host_cmd = target_to_host_fcntl_cmd(cmd);
6878
6879 if (host_cmd == -TARGET_EINVAL)
6880 return host_cmd;
53a5960a 6881
7775e9ec
FB		 6882 switch(cmd) {
6883 case TARGET_F_GETLK:
213d3e9e
PM		 6884 ret = copy_from_user_flock(&fl64, arg);
6885 if (ret) {
6886 return ret;
6887 }
435da5e7 6888 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 6889 if (ret == 0) {
213d3e9e 6890 ret = copy_to_user_flock(arg, &fl64);
7775e9ec
FB		 6891 }
6892 break;
3b46e624 6893
7775e9ec
FB		 6894 case TARGET_F_SETLK:
6895 case TARGET_F_SETLKW:
213d3e9e
PM		 6896 ret = copy_from_user_flock(&fl64, arg);
6897 if (ret) {
6898 return ret;
6899 }
435da5e7 6900 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 6901 break;
3b46e624 6902
7775e9ec 6903 case TARGET_F_GETLK64:
2d92c682 6904 case TARGET_F_OFD_GETLK:
213d3e9e
PM		 6905 ret = copy_from_user_flock64(&fl64, arg);
6906 if (ret) {
6907 return ret;
6908 }
435da5e7 6909 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
43f238d7 6910 if (ret == 0) {
213d3e9e 6911 ret = copy_to_user_flock64(arg, &fl64);
43f238d7 6912 }
9ee1fa2c 6913 break;
7775e9ec
FB		 6914 case TARGET_F_SETLK64:
6915 case TARGET_F_SETLKW64:
2d92c682
AS		 6916 case TARGET_F_OFD_SETLK:
6917 case TARGET_F_OFD_SETLKW:
213d3e9e
PM		 6918 ret = copy_from_user_flock64(&fl64, arg);
6919 if (ret) {
6920 return ret;
6921 }
435da5e7 6922 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 6923 break;
6924
5f106811 6925 case TARGET_F_GETFL:
435da5e7 6926 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 6927 if (ret >= 0) {
6928 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
6929 }
ffa65c3b
FB		 6930 break;
6931
5f106811 6932 case TARGET_F_SETFL:
435da5e7
PM		 6933 ret = get_errno(safe_fcntl(fd, host_cmd,
6934 target_to_host_bitmask(arg,
6935 fcntl_flags_tbl)));
5f106811
APR		 6936 break;
6937
8d5d3004
AS		 6938#ifdef F_GETOWN_EX
6939 case TARGET_F_GETOWN_EX:
435da5e7 6940 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 6941 if (ret >= 0) {
6942 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
6943 return -TARGET_EFAULT;
6944 target_fox->type = tswap32(fox.type);
6945 target_fox->pid = tswap32(fox.pid);
6946 unlock_user_struct(target_fox, arg, 1);
6947 }
6948 break;
6949#endif
6950
6951#ifdef F_SETOWN_EX
6952 case TARGET_F_SETOWN_EX:
6953 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
6954 return -TARGET_EFAULT;
6955 fox.type = tswap32(target_fox->type);
6956 fox.pid = tswap32(target_fox->pid);
6957 unlock_user_struct(target_fox, arg, 0);
435da5e7 6958 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 6959 break;
6960#endif
6961
5f106811 6962 case TARGET_F_SETSIG:
a7b4c9b1
TB		 6963 ret = get_errno(safe_fcntl(fd, host_cmd, target_to_host_signal(arg)));
6964 break;
6965
5f106811 6966 case TARGET_F_GETSIG:
a7b4c9b1
TB		 6967 ret = host_to_target_signal(get_errno(safe_fcntl(fd, host_cmd, arg)));
6968 break;
6969
6970 case TARGET_F_SETOWN:
6971 case TARGET_F_GETOWN:
7e22e546
UH		 6972 case TARGET_F_SETLEASE:
6973 case TARGET_F_GETLEASE:
7e3b92ec
PM		 6974 case TARGET_F_SETPIPE_SZ:
6975 case TARGET_F_GETPIPE_SZ:
2bb963ff
SCW		 6976 case TARGET_F_ADD_SEALS:
6977 case TARGET_F_GET_SEALS:
435da5e7 6978 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 6979 break;
6980
7775e9ec 6981 default:
435da5e7 6982 ret = get_errno(safe_fcntl(fd, cmd, arg));
7775e9ec
FB		 6983 break;
6984 }
6985 return ret;
6986}
6987
67867308 6988#ifdef USE_UID16
7775e9ec 6989
67867308
FB		 6990static inline int high2lowuid(int uid)
6991{
6992 if (uid > 65535)
6993 return 65534;
6994 else
6995 return uid;
6996}
6997
6998static inline int high2lowgid(int gid)
6999{
7000 if (gid > 65535)
7001 return 65534;
7002 else
7003 return gid;
7004}
7005
7006static inline int low2highuid(int uid)
7007{
7008 if ((int16_t)uid == -1)
7009 return -1;
7010 else
7011 return uid;
7012}
7013
7014static inline int low2highgid(int gid)
7015{
7016 if ((int16_t)gid == -1)
7017 return -1;
7018 else
7019 return gid;
7020}
0c866a7e
RV		 7021static inline int tswapid(int id)
7022{
7023 return tswap16(id);
7024}
76ca310a
PM		 7025
7026#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
7027
0c866a7e
RV		 7028#else /* !USE_UID16 */
7029static inline int high2lowuid(int uid)
7030{
7031 return uid;
7032}
7033static inline int high2lowgid(int gid)
7034{
7035 return gid;
7036}
7037static inline int low2highuid(int uid)
7038{
7039 return uid;
7040}
7041static inline int low2highgid(int gid)
7042{
7043 return gid;
7044}
7045static inline int tswapid(int id)
7046{
7047 return tswap32(id);
7048}
76ca310a
PM		 7049
7050#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
7051
67867308 7052#endif /* USE_UID16 */
1b6b029e 7053
fd6f7798
PM		 7054/* We must do direct syscalls for setting UID/GID, because we want to
7055 * implement the Linux system call semantics of "change only for this thread",
7056 * not the libc/POSIX semantics of "change for all threads in process".
7057 * (See http://ewontfix.com/17/ for more details.)
7058 * We use the 32-bit version of the syscalls if present; if it is not
7059 * then either the host architecture supports 32-bit UIDs natively with
7060 * the standard syscall, or the 16-bit UID is the best we can do.
7061 */
7062#ifdef __NR_setuid32
7063#define __NR_sys_setuid __NR_setuid32
7064#else
7065#define __NR_sys_setuid __NR_setuid
7066#endif
7067#ifdef __NR_setgid32
7068#define __NR_sys_setgid __NR_setgid32
7069#else
7070#define __NR_sys_setgid __NR_setgid
7071#endif
7072#ifdef __NR_setresuid32
7073#define __NR_sys_setresuid __NR_setresuid32
7074#else
7075#define __NR_sys_setresuid __NR_setresuid
7076#endif
7077#ifdef __NR_setresgid32
7078#define __NR_sys_setresgid __NR_setresgid32
7079#else
7080#define __NR_sys_setresgid __NR_setresgid
7081#endif
7082
7083_syscall1(int, sys_setuid, uid_t, uid)
7084_syscall1(int, sys_setgid, gid_t, gid)
7085_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
7086_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
7087
31e31b8a
FB		 7088void syscall_init(void)
7089{
2ab83ea7
FB		 7090 IOCTLEntry *ie;
7091 const argtype *arg_type;
7092 int size;
b92c47c1 7093 int i;
2ab83ea7 7094
8be656b8
AG		 7095 thunk_init(STRUCT_MAX);
7096
001faf32 7097#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 7098#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 7099#include "syscall_types.h"
7100#undef STRUCT
7101#undef STRUCT_SPECIAL
2ab83ea7 7102
dd6e957a
PM		 7103 /* Build target_to_host_errno_table[] table from
7104 * host_to_target_errno_table[]. */
7105 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
7106 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
7107 }
7108
2ab83ea7
FB		 7109 /* we patch the ioctl size if necessary. We rely on the fact that
7110 no ioctl has all the bits at '1' in the size field */
7111 ie = ioctl_entries;
7112 while (ie->target_cmd != 0) {
7113 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
7114 TARGET_IOC_SIZEMASK) {
7115 arg_type = ie->arg_type;
7116 if (arg_type[0] != TYPE_PTR) {
5fafdf24 7117 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 7118 ie->target_cmd);
7119 exit(1);
7120 }
7121 arg_type++;
7122 size = thunk_type_size(arg_type, 0);
5fafdf24 7123 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 7124 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
7125 (size << TARGET_IOC_SIZESHIFT);
7126 }
b92c47c1 7127
2ab83ea7 7128 /* automatic consistency check if same arch */
872ea0c0
AZ		 7129#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
7130 (defined(__x86_64__) && defined(TARGET_X86_64))
7131 if (unlikely(ie->target_cmd != ie->host_cmd)) {
7132 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
7133 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 7134 }
7135#endif
7136 ie++;
7137 }
31e31b8a 7138}
c573ff67 7139
ce4defa0 7140#ifdef TARGET_NR_truncate64
992f48a0
BS		 7141static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
7142 abi_long arg2,
7143 abi_long arg3,
7144 abi_long arg4)
ce4defa0 7145{
8bf8e9df 7146 if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
ce4defa0
PB		 7147 arg2 = arg3;
7148 arg3 = arg4;
48e515d4 7149 }
ce4defa0
PB		 7150 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
7151}
7152#endif
7153
7154#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 7155static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
7156 abi_long arg2,
7157 abi_long arg3,
7158 abi_long arg4)
ce4defa0 7159{
8bf8e9df 7160 if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
ce4defa0
PB		 7161 arg2 = arg3;
7162 arg3 = arg4;
48e515d4 7163 }
ce4defa0
PB		 7164 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
7165}
7166#endif
7167
859e8a89
AF		 7168#if defined(TARGET_NR_timer_settime) || \
7169 (defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
2c86c90f 7170static inline abi_long target_to_host_itimerspec(struct itimerspec *host_its,
f4f1e10a
ECL		 7171 abi_ulong target_addr)
7172{
2c86c90f
FB		 7173 if (target_to_host_timespec(&host_its->it_interval, target_addr +
7174 offsetof(struct target_itimerspec,
7175 it_interval)) ||
7176 target_to_host_timespec(&host_its->it_value, target_addr +
7177 offsetof(struct target_itimerspec,
7178 it_value))) {
f4f1e10a
ECL		 7179 return -TARGET_EFAULT;
7180 }
7181
f4f1e10a
ECL		 7182 return 0;
7183}
859e8a89 7184#endif
f4f1e10a 7185
828cb3a1
FB		 7186#if defined(TARGET_NR_timer_settime64) || \
7187 (defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD))
7188static inline abi_long target_to_host_itimerspec64(struct itimerspec *host_its,
7189 abi_ulong target_addr)
7190{
7191 if (target_to_host_timespec64(&host_its->it_interval, target_addr +
7192 offsetof(struct target__kernel_itimerspec,
7193 it_interval)) ||
7194 target_to_host_timespec64(&host_its->it_value, target_addr +
7195 offsetof(struct target__kernel_itimerspec,
7196 it_value))) {
7197 return -TARGET_EFAULT;
7198 }
7199
7200 return 0;
7201}
7202#endif
7203
859e8a89
AF		 7204#if ((defined(TARGET_NR_timerfd_gettime) || \
7205 defined(TARGET_NR_timerfd_settime)) && defined(CONFIG_TIMERFD)) || \
2c86c90f 7206 defined(TARGET_NR_timer_gettime) || defined(TARGET_NR_timer_settime)
f4f1e10a 7207static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
2c86c90f
FB		 7208 struct itimerspec *host_its)
7209{
7210 if (host_to_target_timespec(target_addr + offsetof(struct target_itimerspec,
7211 it_interval),
7212 &host_its->it_interval) ||
7213 host_to_target_timespec(target_addr + offsetof(struct target_itimerspec,
7214 it_value),
7215 &host_its->it_value)) {
f4f1e10a
ECL		 7216 return -TARGET_EFAULT;
7217 }
f4f1e10a
ECL		 7218 return 0;
7219}
859e8a89 7220#endif
f4f1e10a 7221
828cb3a1
FB		 7222#if ((defined(TARGET_NR_timerfd_gettime64) || \
7223 defined(TARGET_NR_timerfd_settime64)) && defined(CONFIG_TIMERFD)) || \
7224 defined(TARGET_NR_timer_gettime64) || defined(TARGET_NR_timer_settime64)
7225static inline abi_long host_to_target_itimerspec64(abi_ulong target_addr,
7226 struct itimerspec *host_its)
7227{
7228 if (host_to_target_timespec64(target_addr +
7229 offsetof(struct target__kernel_itimerspec,
7230 it_interval),
7231 &host_its->it_interval) ||
7232 host_to_target_timespec64(target_addr +
7233 offsetof(struct target__kernel_itimerspec,
7234 it_value),
7235 &host_its->it_value)) {
7236 return -TARGET_EFAULT;
7237 }
7238 return 0;
7239}
7240#endif
7241
859e8a89
AF		 7242#if defined(TARGET_NR_adjtimex) || \
7243 (defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME))
19f59bce
AM		 7244static inline abi_long target_to_host_timex(struct timex *host_tx,
7245 abi_long target_addr)
7246{
7247 struct target_timex *target_tx;
7248
7249 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
7250 return -TARGET_EFAULT;
7251 }
7252
7253 __get_user(host_tx->modes, &target_tx->modes);
7254 __get_user(host_tx->offset, &target_tx->offset);
7255 __get_user(host_tx->freq, &target_tx->freq);
7256 __get_user(host_tx->maxerror, &target_tx->maxerror);
7257 __get_user(host_tx->esterror, &target_tx->esterror);
7258 __get_user(host_tx->status, &target_tx->status);
7259 __get_user(host_tx->constant, &target_tx->constant);
7260 __get_user(host_tx->precision, &target_tx->precision);
7261 __get_user(host_tx->tolerance, &target_tx->tolerance);
7262 __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
7263 __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
7264 __get_user(host_tx->tick, &target_tx->tick);
7265 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
7266 __get_user(host_tx->jitter, &target_tx->jitter);
7267 __get_user(host_tx->shift, &target_tx->shift);
7268 __get_user(host_tx->stabil, &target_tx->stabil);
7269 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
7270 __get_user(host_tx->calcnt, &target_tx->calcnt);
7271 __get_user(host_tx->errcnt, &target_tx->errcnt);
7272 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
7273 __get_user(host_tx->tai, &target_tx->tai);
7274
7275 unlock_user_struct(target_tx, target_addr, 0);
7276 return 0;
7277}
7278
7279static inline abi_long host_to_target_timex(abi_long target_addr,
7280 struct timex *host_tx)
7281{
7282 struct target_timex *target_tx;
7283
7284 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
7285 return -TARGET_EFAULT;
7286 }
7287
7288 __put_user(host_tx->modes, &target_tx->modes);
7289 __put_user(host_tx->offset, &target_tx->offset);
7290 __put_user(host_tx->freq, &target_tx->freq);
7291 __put_user(host_tx->maxerror, &target_tx->maxerror);
7292 __put_user(host_tx->esterror, &target_tx->esterror);
7293 __put_user(host_tx->status, &target_tx->status);
7294 __put_user(host_tx->constant, &target_tx->constant);
7295 __put_user(host_tx->precision, &target_tx->precision);
7296 __put_user(host_tx->tolerance, &target_tx->tolerance);
7297 __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
7298 __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
7299 __put_user(host_tx->tick, &target_tx->tick);
7300 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
7301 __put_user(host_tx->jitter, &target_tx->jitter);
7302 __put_user(host_tx->shift, &target_tx->shift);
7303 __put_user(host_tx->stabil, &target_tx->stabil);
7304 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
7305 __put_user(host_tx->calcnt, &target_tx->calcnt);
7306 __put_user(host_tx->errcnt, &target_tx->errcnt);
7307 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
7308 __put_user(host_tx->tai, &target_tx->tai);
7309
7310 unlock_user_struct(target_tx, target_addr, 1);
7311 return 0;
7312}
859e8a89 7313#endif
19f59bce 7314
6ac03b2c
FB		 7315
7316#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
7317static inline abi_long target_to_host_timex64(struct timex *host_tx,
7318 abi_long target_addr)
7319{
7320 struct target__kernel_timex *target_tx;
7321
7322 if (copy_from_user_timeval64(&host_tx->time, target_addr +
7323 offsetof(struct target__kernel_timex,
7324 time))) {
7325 return -TARGET_EFAULT;
7326 }
7327
7328 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
7329 return -TARGET_EFAULT;
7330 }
7331
7332 __get_user(host_tx->modes, &target_tx->modes);
7333 __get_user(host_tx->offset, &target_tx->offset);
7334 __get_user(host_tx->freq, &target_tx->freq);
7335 __get_user(host_tx->maxerror, &target_tx->maxerror);
7336 __get_user(host_tx->esterror, &target_tx->esterror);
7337 __get_user(host_tx->status, &target_tx->status);
7338 __get_user(host_tx->constant, &target_tx->constant);
7339 __get_user(host_tx->precision, &target_tx->precision);
7340 __get_user(host_tx->tolerance, &target_tx->tolerance);
7341 __get_user(host_tx->tick, &target_tx->tick);
7342 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
7343 __get_user(host_tx->jitter, &target_tx->jitter);
7344 __get_user(host_tx->shift, &target_tx->shift);
7345 __get_user(host_tx->stabil, &target_tx->stabil);
7346 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
7347 __get_user(host_tx->calcnt, &target_tx->calcnt);
7348 __get_user(host_tx->errcnt, &target_tx->errcnt);
7349 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
7350 __get_user(host_tx->tai, &target_tx->tai);
7351
7352 unlock_user_struct(target_tx, target_addr, 0);
7353 return 0;
7354}
7355
7356static inline abi_long host_to_target_timex64(abi_long target_addr,
7357 struct timex *host_tx)
7358{
7359 struct target__kernel_timex *target_tx;
7360
7361 if (copy_to_user_timeval64(target_addr +
7362 offsetof(struct target__kernel_timex, time),
7363 &host_tx->time)) {
7364 return -TARGET_EFAULT;
7365 }
7366
7367 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
7368 return -TARGET_EFAULT;
7369 }
7370
7371 __put_user(host_tx->modes, &target_tx->modes);
7372 __put_user(host_tx->offset, &target_tx->offset);
7373 __put_user(host_tx->freq, &target_tx->freq);
7374 __put_user(host_tx->maxerror, &target_tx->maxerror);
7375 __put_user(host_tx->esterror, &target_tx->esterror);
7376 __put_user(host_tx->status, &target_tx->status);
7377 __put_user(host_tx->constant, &target_tx->constant);
7378 __put_user(host_tx->precision, &target_tx->precision);
7379 __put_user(host_tx->tolerance, &target_tx->tolerance);
7380 __put_user(host_tx->tick, &target_tx->tick);
7381 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
7382 __put_user(host_tx->jitter, &target_tx->jitter);
7383 __put_user(host_tx->shift, &target_tx->shift);
7384 __put_user(host_tx->stabil, &target_tx->stabil);
7385 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
7386 __put_user(host_tx->calcnt, &target_tx->calcnt);
7387 __put_user(host_tx->errcnt, &target_tx->errcnt);
7388 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
7389 __put_user(host_tx->tai, &target_tx->tai);
7390
7391 unlock_user_struct(target_tx, target_addr, 1);
7392 return 0;
7393}
7394#endif
7395
c065976f
PM		 7396static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
7397 abi_ulong target_addr)
7398{
7399 struct target_sigevent *target_sevp;
7400
7401 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
7402 return -TARGET_EFAULT;
7403 }
7404
7405 /* This union is awkward on 64 bit systems because it has a 32 bit
7406 * integer and a pointer in it; we follow the conversion approach
7407 * used for handling sigval types in signal.c so the guest should get
7408 * the correct value back even if we did a 64 bit byteswap and it's
7409 * using the 32 bit integer.
7410 */
7411 host_sevp->sigev_value.sival_ptr =
7412 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
7413 host_sevp->sigev_signo =
7414 target_to_host_signal(tswap32(target_sevp->sigev_signo));
7415 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
7416 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
7417
7418 unlock_user_struct(target_sevp, target_addr, 1);
7419 return 0;
7420}
7421
6f6a4032
TM		 7422#if defined(TARGET_NR_mlockall)
7423static inline int target_to_host_mlockall_arg(int arg)
7424{
7425 int result = 0;
7426
02e5d7d7 7427 if (arg & TARGET_MCL_CURRENT) {
6f6a4032
TM		 7428 result |= MCL_CURRENT;
7429 }
02e5d7d7 7430 if (arg & TARGET_MCL_FUTURE) {
6f6a4032
TM		 7431 result |= MCL_FUTURE;
7432 }
02e5d7d7
FB		 7433#ifdef MCL_ONFAULT
7434 if (arg & TARGET_MCL_ONFAULT) {
7435 result |= MCL_ONFAULT;
7436 }
7437#endif
7438
6f6a4032
TM		 7439 return result;
7440}
7441#endif
7442
4f7f8924
AR		 7443#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
7444 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
7445 defined(TARGET_NR_newfstatat))
6a24a778
AZ		 7446static inline abi_long host_to_target_stat64(void *cpu_env,
7447 abi_ulong target_addr,
7448 struct stat *host_st)
7449{
09701199 7450#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 7451 if (((CPUARMState *)cpu_env)->eabi) {
7452 struct target_eabi_stat64 *target_st;
7453
7454 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
7455 return -TARGET_EFAULT;
7456 memset(target_st, 0, sizeof(struct target_eabi_stat64));
7457 __put_user(host_st->st_dev, &target_st->st_dev);
7458 __put_user(host_st->st_ino, &target_st->st_ino);
7459#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
7460 __put_user(host_st->st_ino, &target_st->__st_ino);
7461#endif
7462 __put_user(host_st->st_mode, &target_st->st_mode);
7463 __put_user(host_st->st_nlink, &target_st->st_nlink);
7464 __put_user(host_st->st_uid, &target_st->st_uid);
7465 __put_user(host_st->st_gid, &target_st->st_gid);
7466 __put_user(host_st->st_rdev, &target_st->st_rdev);
7467 __put_user(host_st->st_size, &target_st->st_size);
7468 __put_user(host_st->st_blksize, &target_st->st_blksize);
7469 __put_user(host_st->st_blocks, &target_st->st_blocks);
7470 __put_user(host_st->st_atime, &target_st->target_st_atime);
7471 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
7472 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
5f992db6
CYT		 7473#if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
7474 __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
7475 __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
7476 __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
7477#endif
6a24a778
AZ		 7478 unlock_user_struct(target_st, target_addr, 1);
7479 } else
7480#endif
7481 {
20d155bc 7482#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 7483 struct target_stat64 *target_st;
20d155bc
SW		 7484#else
7485 struct target_stat *target_st;
9d33b76b 7486#endif
6a24a778
AZ		 7487
7488 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
7489 return -TARGET_EFAULT;
9d33b76b 7490 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 7491 __put_user(host_st->st_dev, &target_st->st_dev);
7492 __put_user(host_st->st_ino, &target_st->st_ino);
7493#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
7494 __put_user(host_st->st_ino, &target_st->__st_ino);
7495#endif
7496 __put_user(host_st->st_mode, &target_st->st_mode);
7497 __put_user(host_st->st_nlink, &target_st->st_nlink);
7498 __put_user(host_st->st_uid, &target_st->st_uid);
7499 __put_user(host_st->st_gid, &target_st->st_gid);
7500 __put_user(host_st->st_rdev, &target_st->st_rdev);
7501 /* XXX: better use of kernel struct */
7502 __put_user(host_st->st_size, &target_st->st_size);
7503 __put_user(host_st->st_blksize, &target_st->st_blksize);
7504 __put_user(host_st->st_blocks, &target_st->st_blocks);
7505 __put_user(host_st->st_atime, &target_st->target_st_atime);
7506 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
7507 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
5f992db6
CYT		 7508#if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
7509 __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
7510 __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
7511 __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
7512#endif
6a24a778
AZ		 7513 unlock_user_struct(target_st, target_addr, 1);
7514 }
7515
7516 return 0;
7517}
4f7f8924 7518#endif
6a24a778 7519
efa92184
AR		 7520#if defined(TARGET_NR_statx) && defined(__NR_statx)
7521static inline abi_long host_to_target_statx(struct target_statx *host_stx,
7522 abi_ulong target_addr)
7523{
7524 struct target_statx *target_stx;
7525
7526 if (!lock_user_struct(VERIFY_WRITE, target_stx, target_addr, 0)) {
7527 return -TARGET_EFAULT;
7528 }
7529 memset(target_stx, 0, sizeof(*target_stx));
7530
7531 __put_user(host_stx->stx_mask, &target_stx->stx_mask);
7532 __put_user(host_stx->stx_blksize, &target_stx->stx_blksize);
7533 __put_user(host_stx->stx_attributes, &target_stx->stx_attributes);
7534 __put_user(host_stx->stx_nlink, &target_stx->stx_nlink);
7535 __put_user(host_stx->stx_uid, &target_stx->stx_uid);
7536 __put_user(host_stx->stx_gid, &target_stx->stx_gid);
7537 __put_user(host_stx->stx_mode, &target_stx->stx_mode);
7538 __put_user(host_stx->stx_ino, &target_stx->stx_ino);
7539 __put_user(host_stx->stx_size, &target_stx->stx_size);
7540 __put_user(host_stx->stx_blocks, &target_stx->stx_blocks);
7541 __put_user(host_stx->stx_attributes_mask, &target_stx->stx_attributes_mask);
7542 __put_user(host_stx->stx_atime.tv_sec, &target_stx->stx_atime.tv_sec);
7543 __put_user(host_stx->stx_atime.tv_nsec, &target_stx->stx_atime.tv_nsec);
d1e26707
AC		 7544 __put_user(host_stx->stx_btime.tv_sec, &target_stx->stx_btime.tv_sec);
7545 __put_user(host_stx->stx_btime.tv_nsec, &target_stx->stx_btime.tv_nsec);
7546 __put_user(host_stx->stx_ctime.tv_sec, &target_stx->stx_ctime.tv_sec);
7547 __put_user(host_stx->stx_ctime.tv_nsec, &target_stx->stx_ctime.tv_nsec);
7548 __put_user(host_stx->stx_mtime.tv_sec, &target_stx->stx_mtime.tv_sec);
7549 __put_user(host_stx->stx_mtime.tv_nsec, &target_stx->stx_mtime.tv_nsec);
efa92184
AR		 7550 __put_user(host_stx->stx_rdev_major, &target_stx->stx_rdev_major);
7551 __put_user(host_stx->stx_rdev_minor, &target_stx->stx_rdev_minor);
7552 __put_user(host_stx->stx_dev_major, &target_stx->stx_dev_major);
7553 __put_user(host_stx->stx_dev_minor, &target_stx->stx_dev_minor);
7554
7555 unlock_user_struct(target_stx, target_addr, 1);
7556
7557 return 0;
7558}
7559#endif
7560
14690296
AF		 7561static int do_sys_futex(int *uaddr, int op, int val,
7562 const struct timespec *timeout, int *uaddr2,
7563 int val3)
7564{
7565#if HOST_LONG_BITS == 64
7566#if defined(__NR_futex)
7567 /* always a 64-bit time_t, it doesn't define _time64 version */
7568 return sys_futex(uaddr, op, val, timeout, uaddr2, val3);
7569
7570#endif
7571#else /* HOST_LONG_BITS == 64 */
7572#if defined(__NR_futex_time64)
7573 if (sizeof(timeout->tv_sec) == 8) {
7574 /* _time64 function on 32bit arch */
7575 return sys_futex_time64(uaddr, op, val, timeout, uaddr2, val3);
7576 }
7577#endif
7578#if defined(__NR_futex)
7579 /* old function on 32bit arch */
7580 return sys_futex(uaddr, op, val, timeout, uaddr2, val3);
7581#endif
7582#endif /* HOST_LONG_BITS == 64 */
7583 g_assert_not_reached();
7584}
7585
7586static int do_safe_futex(int *uaddr, int op, int val,
7587 const struct timespec *timeout, int *uaddr2,
7588 int val3)
7589{
7590#if HOST_LONG_BITS == 64
7591#if defined(__NR_futex)
7592 /* always a 64-bit time_t, it doesn't define _time64 version */
7593 return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3));
7594#endif
7595#else /* HOST_LONG_BITS == 64 */
7596#if defined(__NR_futex_time64)
7597 if (sizeof(timeout->tv_sec) == 8) {
7598 /* _time64 function on 32bit arch */
7599 return get_errno(safe_futex_time64(uaddr, op, val, timeout, uaddr2,
7600 val3));
7601 }
7602#endif
7603#if defined(__NR_futex)
7604 /* old function on 32bit arch */
7605 return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3));
7606#endif
7607#endif /* HOST_LONG_BITS == 64 */
7608 return -TARGET_ENOSYS;
7609}
efa92184 7610
bd0c5661
PB		 7611/* ??? Using host futex calls even when target atomic operations
7612 are not really atomic probably breaks things. However implementing
7613 futexes locally would make futexes shared between multiple processes
7614 tricky. However they're probably useless because guest atomic
7615 operations won't work either. */
859e8a89 7616#if defined(TARGET_NR_futex)
3e8f1628
RH		 7617static int do_futex(CPUState *cpu, target_ulong uaddr, int op, int val,
7618 target_ulong timeout, target_ulong uaddr2, int val3)
bd0c5661
PB		 7619{
7620 struct timespec ts, *pts;
a16aae0c 7621 int base_op;
bd0c5661
PB		 7622
7623 /* ??? We assume FUTEX_* constants are the same on both host
7624 and target. */
a29ccd63 7625#ifdef FUTEX_CMD_MASK
a16aae0c 7626 base_op = op & FUTEX_CMD_MASK;
a29ccd63 7627#else
a16aae0c 7628 base_op = op;
a29ccd63 7629#endif
a16aae0c 7630 switch (base_op) {
bd0c5661 7631 case FUTEX_WAIT:
cce246e0 7632 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 7633 if (timeout) {
7634 pts = &ts;
7635 target_to_host_timespec(pts, timeout);
7636 } else {
7637 pts = NULL;
7638 }
3e8f1628
RH		 7639 return do_safe_futex(g2h(cpu, uaddr),
7640 op, tswap32(val), pts, NULL, val3);
bd0c5661 7641 case FUTEX_WAKE:
3e8f1628
RH		 7642 return do_safe_futex(g2h(cpu, uaddr),
7643 op, val, NULL, NULL, 0);
bd0c5661 7644 case FUTEX_FD:
3e8f1628
RH		 7645 return do_safe_futex(g2h(cpu, uaddr),
7646 op, val, NULL, NULL, 0);
bd0c5661 7647 case FUTEX_REQUEUE:
bd0c5661 7648 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 7649 case FUTEX_WAKE_OP:
7650 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
7651 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
7652 But the prototype takes a `struct timespec *'; insert casts
7653 to satisfy the compiler. We do not need to tswap TIMEOUT
7654 since it's not compared to guest memory. */
7655 pts = (struct timespec *)(uintptr_t) timeout;
3e8f1628 7656 return do_safe_futex(g2h(cpu, uaddr), op, val, pts, g2h(cpu, uaddr2),
14690296 7657 (base_op == FUTEX_CMP_REQUEUE
3e8f1628 7658 ? tswap32(val3) : val3));
bd0c5661
PB		 7659 default:
7660 return -TARGET_ENOSYS;
7661 }
7662}
859e8a89 7663#endif
14690296
AF		 7664
7665#if defined(TARGET_NR_futex_time64)
3e8f1628
RH		 7666static int do_futex_time64(CPUState *cpu, target_ulong uaddr, int op,
7667 int val, target_ulong timeout,
14690296
AF		 7668 target_ulong uaddr2, int val3)
7669{
7670 struct timespec ts, *pts;
7671 int base_op;
7672
7673 /* ??? We assume FUTEX_* constants are the same on both host
7674 and target. */
7675#ifdef FUTEX_CMD_MASK
7676 base_op = op & FUTEX_CMD_MASK;
7677#else
7678 base_op = op;
7679#endif
7680 switch (base_op) {
7681 case FUTEX_WAIT:
7682 case FUTEX_WAIT_BITSET:
7683 if (timeout) {
7684 pts = &ts;
e4ce178b
AF		 7685 if (target_to_host_timespec64(pts, timeout)) {
7686 return -TARGET_EFAULT;
7687 }
14690296
AF		 7688 } else {
7689 pts = NULL;
7690 }
3e8f1628
RH		 7691 return do_safe_futex(g2h(cpu, uaddr), op,
7692 tswap32(val), pts, NULL, val3);
14690296 7693 case FUTEX_WAKE:
3e8f1628 7694 return do_safe_futex(g2h(cpu, uaddr), op, val, NULL, NULL, 0);
14690296 7695 case FUTEX_FD:
3e8f1628 7696 return do_safe_futex(g2h(cpu, uaddr), op, val, NULL, NULL, 0);
14690296
AF		 7697 case FUTEX_REQUEUE:
7698 case FUTEX_CMP_REQUEUE:
7699 case FUTEX_WAKE_OP:
7700 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
7701 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
7702 But the prototype takes a `struct timespec *'; insert casts
7703 to satisfy the compiler. We do not need to tswap TIMEOUT
7704 since it's not compared to guest memory. */
7705 pts = (struct timespec *)(uintptr_t) timeout;
3e8f1628 7706 return do_safe_futex(g2h(cpu, uaddr), op, val, pts, g2h(cpu, uaddr2),
14690296 7707 (base_op == FUTEX_CMP_REQUEUE
3e8f1628 7708 ? tswap32(val3) : val3));
14690296
AF		 7709 default:
7710 return -TARGET_ENOSYS;
7711 }
7712}
7713#endif
7714
0f0426f3
LV		 7715#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7716static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
7717 abi_long handle, abi_long mount_id,
7718 abi_long flags)
7719{
7720 struct file_handle *target_fh;
7721 struct file_handle *fh;
7722 int mid = 0;
7723 abi_long ret;
7724 char *name;
7725 unsigned int size, total_size;
7726
7727 if (get_user_s32(size, handle)) {
7728 return -TARGET_EFAULT;
7729 }
7730
7731 name = lock_user_string(pathname);
7732 if (!name) {
7733 return -TARGET_EFAULT;
7734 }
7735
7736 total_size = sizeof(struct file_handle) + size;
7737 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
7738 if (!target_fh) {
7739 unlock_user(name, pathname, 0);
7740 return -TARGET_EFAULT;
7741 }
7742
7743 fh = g_malloc0(total_size);
7744 fh->handle_bytes = size;
7745
7746 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
7747 unlock_user(name, pathname, 0);
7748
7749 /* man name_to_handle_at(2):
7750 * Other than the use of the handle_bytes field, the caller should treat
7751 * the file_handle structure as an opaque data type
7752 */
7753
7754 memcpy(target_fh, fh, total_size);
7755 target_fh->handle_bytes = tswap32(fh->handle_bytes);
7756 target_fh->handle_type = tswap32(fh->handle_type);
7757 g_free(fh);
7758 unlock_user(target_fh, handle, total_size);
7759
7760 if (put_user_s32(mid, mount_id)) {
7761 return -TARGET_EFAULT;
7762 }
7763
7764 return ret;
7765
7766}
7767#endif
7768
7769#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7770static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
7771 abi_long flags)
7772{
7773 struct file_handle *target_fh;
7774 struct file_handle *fh;
7775 unsigned int size, total_size;
7776 abi_long ret;
7777
7778 if (get_user_s32(size, handle)) {
7779 return -TARGET_EFAULT;
7780 }
7781
7782 total_size = sizeof(struct file_handle) + size;
7783 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
7784 if (!target_fh) {
7785 return -TARGET_EFAULT;
7786 }
7787
e9d49d51 7788 fh = g_memdup(target_fh, total_size);
0f0426f3
LV		 7789 fh->handle_bytes = size;
7790 fh->handle_type = tswap32(target_fh->handle_type);
7791
7792 ret = get_errno(open_by_handle_at(mount_fd, fh,
7793 target_to_host_bitmask(flags, fcntl_flags_tbl)));
7794
7795 g_free(fh);
7796
7797 unlock_user(target_fh, handle, total_size);
7798
7799 return ret;
7800}
7801#endif
bd0c5661 7802
e36800c9
LV		 7803#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
7804
e36800c9
LV		 7805static abi_long do_signalfd4(int fd, abi_long mask, int flags)
7806{
7807 int host_flags;
7808 target_sigset_t *target_mask;
7809 sigset_t host_mask;
7810 abi_long ret;
7811
78721301 7812 if (flags & ~(TARGET_O_NONBLOCK_MASK | TARGET_O_CLOEXEC)) {
e36800c9
LV		 7813 return -TARGET_EINVAL;
7814 }
7815 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
7816 return -TARGET_EFAULT;
7817 }
7818
7819 target_to_host_sigset(&host_mask, target_mask);
7820
7821 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
7822
7823 ret = get_errno(signalfd(fd, &host_mask, host_flags));
7824 if (ret >= 0) {
7825 fd_trans_register(ret, &target_signalfd_trans);
7826 }
7827
7828 unlock_user_struct(target_mask, mask, 0);
7829
7830 return ret;
7831}
7832#endif
7833
1d9d8b55
PB		 7834/* Map host to target signal numbers for the wait family of syscalls.
7835 Assume all other status bits are the same. */
a05c6409 7836int host_to_target_waitstatus(int status)
1d9d8b55
PB		 7837{
7838 if (WIFSIGNALED(status)) {
7839 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
7840 }
7841 if (WIFSTOPPED(status)) {
7842 return (host_to_target_signal(WSTOPSIG(status)) << 8)
7843 | (status & 0xff);
7844 }
7845 return status;
7846}
7847
76b94245
WVS		 7848static int open_self_cmdline(void *cpu_env, int fd)
7849{
29a0af61 7850 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
58de8b96
AS		 7851 struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
7852 int i;
76b94245 7853
58de8b96
AS		 7854 for (i = 0; i < bprm->argc; i++) {
7855 size_t len = strlen(bprm->argv[i]) + 1;
76b94245 7856
58de8b96 7857 if (write(fd, bprm->argv[i], len) != len) {
76b94245 7858 return -1;
76b94245
WVS		 7859 }
7860 }
7861
58de8b96 7862 return 0;
76b94245
WVS		 7863}
7864
36c08d49
AG		 7865static int open_self_maps(void *cpu_env, int fd)
7866{
29a0af61 7867 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
0429a971 7868 TaskState *ts = cpu->opaque;
01ef6b9e
AB		 7869 GSList *map_info = read_self_maps();
7870 GSList *s;
bb55173c 7871 int count;
1a49ef2a 7872
01ef6b9e
AB		 7873 for (s = map_info; s; s = g_slist_next(s)) {
7874 MapInfo *e = (MapInfo *) s->data;
1a49ef2a 7875
01ef6b9e
AB		 7876 if (h2g_valid(e->start)) {
7877 unsigned long min = e->start;
7878 unsigned long max = e->end;
d67f4aaa 7879 int flags = page_get_flags(h2g(min));
01ef6b9e
AB		 7880 const char *path;
7881
7882 max = h2g_valid(max - 1) ?
3e8f1628 7883 max : (uintptr_t) g2h_untagged(GUEST_ADDR_MAX) + 1;
01ef6b9e 7884
d67f4aaa
MI		 7885 if (page_check_range(h2g(min), max - min, flags) == -1) {
7886 continue;
7887 }
01ef6b9e 7888
d67f4aaa 7889 if (h2g(min) == ts->info->stack_limit) {
bb55173c 7890 path = "[stack]";
01ef6b9e
AB		 7891 } else {
7892 path = e->path;
d67f4aaa 7893 }
01ef6b9e 7894
bb55173c
AB		 7895 count = dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
7896 " %c%c%c%c %08" PRIx64 " %s %"PRId64,
7897 h2g(min), h2g(max - 1) + 1,
08f3a96b
NS		 7898 (flags & PAGE_READ) ? 'r' : '-',
7899 (flags & PAGE_WRITE_ORG) ? 'w' : '-',
7900 (flags & PAGE_EXEC) ? 'x' : '-',
bb55173c
AB		 7901 e->is_priv ? 'p' : '-',
7902 (uint64_t) e->offset, e->dev, e->inode);
7903 if (path) {
7904 dprintf(fd, "%*s%s\n", 73 - count, "", path);
7905 } else {
7906 dprintf(fd, "\n");
7907 }
1a49ef2a
AG		 7908 }
7909 }
7910
01ef6b9e
AB		 7911 free_self_maps(map_info);
7912
bf02adcd
RH		 7913#ifdef TARGET_VSYSCALL_PAGE
7914 /*
7915 * We only support execution from the vsyscall page.
7916 * This is as if CONFIG_LEGACY_VSYSCALL_XONLY=y from v5.3.
7917 */
bb55173c
AB		 7918 count = dprintf(fd, TARGET_FMT_lx "-" TARGET_FMT_lx
7919 " --xp 00000000 00:00 0",
7920 TARGET_VSYSCALL_PAGE, TARGET_VSYSCALL_PAGE + TARGET_PAGE_SIZE);
7921 dprintf(fd, "%*s%s\n", 73 - count, "", "[vsyscall]");
bf02adcd
RH		 7922#endif
7923
36c08d49
AG		 7924 return 0;
7925}
7926
480b8e7d
AG		 7927static int open_self_stat(void *cpu_env, int fd)
7928{
29a0af61 7929 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
0429a971 7930 TaskState *ts = cpu->opaque;
7ad4d5a4 7931 g_autoptr(GString) buf = g_string_new(NULL);
480b8e7d
AG		 7932 int i;
7933
7934 for (i = 0; i < 44; i++) {
7ad4d5a4
AB		 7935 if (i == 0) {
7936 /* pid */
7937 g_string_printf(buf, FMT_pid " ", getpid());
7938 } else if (i == 1) {
7939 /* app name */
7940 gchar *bin = g_strrstr(ts->bprm->argv[0], "/");
7941 bin = bin ? bin + 1 : ts->bprm->argv[0];
7942 g_string_printf(buf, "(%.15s) ", bin);
7943 } else if (i == 27) {
7944 /* stack bottom */
7945 g_string_printf(buf, TARGET_ABI_FMT_ld " ", ts->info->start_stack);
7946 } else {
7947 /* for the rest, there is MasterCard */
7948 g_string_printf(buf, "0%c", i == 43 ? '\n' : ' ');
7949 }
7950
7951 if (write(fd, buf->str, buf->len) != buf->len) {
7952 return -1;
7953 }
480b8e7d
AG		 7954 }
7955
7956 return 0;
7957}
7958
257450ee
AG		 7959static int open_self_auxv(void *cpu_env, int fd)
7960{
29a0af61 7961 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
0429a971 7962 TaskState *ts = cpu->opaque;
257450ee
AG		 7963 abi_ulong auxv = ts->info->saved_auxv;
7964 abi_ulong len = ts->info->auxv_len;
7965 char *ptr;
7966
7967 /*
7968 * Auxiliary vector is stored in target process stack.
7969 * read in whole auxv vector and copy it to file
7970 */
7971 ptr = lock_user(VERIFY_READ, auxv, len, 0);
7972 if (ptr != NULL) {
7973 while (len > 0) {
7974 ssize_t r;
7975 r = write(fd, ptr, len);
7976 if (r <= 0) {
7977 break;
7978 }
7979 len -= r;
7980 ptr += r;
7981 }
7982 lseek(fd, 0, SEEK_SET);
7983 unlock_user(ptr, auxv, len);
7984 }
7985
7986 return 0;
7987}
7988
463d8e73
AS		 7989static int is_proc_myself(const char *filename, const char *entry)
7990{
7991 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
7992 filename += strlen("/proc/");
7993 if (!strncmp(filename, "self/", strlen("self/"))) {
7994 filename += strlen("self/");
7995 } else if (*filename >= '1' && *filename <= '9') {
7996 char myself[80];
7997 snprintf(myself, sizeof(myself), "%d/", getpid());
7998 if (!strncmp(filename, myself, strlen(myself))) {
7999 filename += strlen(myself);
8000 } else {
8001 return 0;
8002 }
8003 } else {
8004 return 0;
8005 }
8006 if (!strcmp(filename, entry)) {
8007 return 1;
8008 }
8009 }
8010 return 0;
8011}
8012
fff69382 8013#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \
93a5661d 8014 defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
de6b9933
LV		 8015static int is_proc(const char *filename, const char *entry)
8016{
8017 return strcmp(filename, entry) == 0;
8018}
fff69382 8019#endif
de6b9933 8020
fff69382 8021#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
de6b9933
LV		 8022static int open_net_route(void *cpu_env, int fd)
8023{
8024 FILE *fp;
8025 char *line = NULL;
8026 size_t len = 0;
8027 ssize_t read;
8028
8029 fp = fopen("/proc/net/route", "r");
8030 if (fp == NULL) {
a3ca7bb2 8031 return -1;
de6b9933
LV		 8032 }
8033
8034 /* read header */
8035
8036 read = getline(&line, &len, fp);
8037 dprintf(fd, "%s", line);
8038
8039 /* read routes */
8040
8041 while ((read = getline(&line, &len, fp)) != -1) {
8042 char iface[16];
8043 uint32_t dest, gw, mask;
8044 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
9d0bd0cd
PM		 8045 int fields;
8046
8047 fields = sscanf(line,
8048 "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
8049 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
8050 &mask, &mtu, &window, &irtt);
8051 if (fields != 11) {
8052 continue;
8053 }
de6b9933
LV		 8054 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
8055 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
8056 metric, tswap32(mask), mtu, window, irtt);
8057 }
8058
8059 free(line);
8060 fclose(fp);
8061
8062 return 0;
8063}
8064#endif
8065
fff69382
LV		 8066#if defined(TARGET_SPARC)
8067static int open_cpuinfo(void *cpu_env, int fd)
8068{
8069 dprintf(fd, "type\t\t: sun4u\n");
8070 return 0;
8071}
8072#endif
8073
93a5661d
HD		 8074#if defined(TARGET_HPPA)
8075static int open_cpuinfo(void *cpu_env, int fd)
8076{
8077 dprintf(fd, "cpu family\t: PA-RISC 1.1e\n");
8078 dprintf(fd, "cpu\t\t: PA7300LC (PCX-L2)\n");
8079 dprintf(fd, "capabilities\t: os32\n");
8080 dprintf(fd, "model\t\t: 9000/778/B160L\n");
8081 dprintf(fd, "model name\t: Merlin L2 160 QEMU (9000/778/B160L)\n");
8082 return 0;
8083}
8084#endif
8085
4ab6713e
LV		 8086#if defined(TARGET_M68K)
8087static int open_hardware(void *cpu_env, int fd)
8088{
8089 dprintf(fd, "Model:\t\tqemu-m68k\n");
8090 return 0;
8091}
8092#endif
8093
0b2effd7 8094static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
3be14d05
AG		 8095{
8096 struct fake_open {
8097 const char *filename;
8098 int (*fill)(void *cpu_env, int fd);
de6b9933 8099 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 8100 };
8101 const struct fake_open *fake_open;
8102 static const struct fake_open fakes[] = {
de6b9933
LV		 8103 { "maps", open_self_maps, is_proc_myself },
8104 { "stat", open_self_stat, is_proc_myself },
8105 { "auxv", open_self_auxv, is_proc_myself },
76b94245 8106 { "cmdline", open_self_cmdline, is_proc_myself },
de6b9933
LV		 8107#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
8108 { "/proc/net/route", open_net_route, is_proc },
fff69382 8109#endif
93a5661d 8110#if defined(TARGET_SPARC) || defined(TARGET_HPPA)
fff69382 8111 { "/proc/cpuinfo", open_cpuinfo, is_proc },
4ab6713e
LV		 8112#endif
8113#if defined(TARGET_M68K)
8114 { "/proc/hardware", open_hardware, is_proc },
de6b9933
LV		 8115#endif
8116 { NULL, NULL, NULL }
3be14d05
AG		 8117 };
8118
aa07f5ec
MO		 8119 if (is_proc_myself(pathname, "exe")) {
8120 int execfd = qemu_getauxval(AT_EXECFD);
c10a0738 8121 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
aa07f5ec
MO		 8122 }
8123
3be14d05 8124 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 8125 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 8126 break;
8127 }
8128 }
8129
8130 if (fake_open->filename) {
8131 const char *tmpdir;
8132 char filename[PATH_MAX];
8133 int fd, r;
8134
8135 /* create temporary file to map stat to */
8136 tmpdir = getenv("TMPDIR");
8137 if (!tmpdir)
8138 tmpdir = "/tmp";
8139 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
8140 fd = mkstemp(filename);
8141 if (fd < 0) {
8142 return fd;
8143 }
8144 unlink(filename);
8145
8146 if ((r = fake_open->fill(cpu_env, fd))) {
a3ca7bb2 8147 int e = errno;
3be14d05 8148 close(fd);
a3ca7bb2 8149 errno = e;
3be14d05
AG		 8150 return r;
8151 }
8152 lseek(fd, 0, SEEK_SET);
8153
8154 return fd;
8155 }
8156
c10a0738 8157 return safe_openat(dirfd, path(pathname), flags, mode);
3be14d05
AG		 8158}
8159
aecc8861
AG		 8160#define TIMER_MAGIC 0x0caf0000
8161#define TIMER_MAGIC_MASK 0xffff0000
8162
8163/* Convert QEMU provided timer ID back to internal 16bit index format */
8164static target_timer_t get_timer_id(abi_long arg)
8165{
8166 target_timer_t timerid = arg;
8167
8168 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
8169 return -TARGET_EINVAL;
8170 }
8171
8172 timerid &= 0xffff;
8173
8174 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
8175 return -TARGET_EINVAL;
8176 }
8177
8178 return timerid;
8179}
8180
2e0a8713
ST		 8181static int target_to_host_cpu_mask(unsigned long *host_mask,
8182 size_t host_size,
8183 abi_ulong target_addr,
8184 size_t target_size)
8185{
8186 unsigned target_bits = sizeof(abi_ulong) * 8;
8187 unsigned host_bits = sizeof(*host_mask) * 8;
8188 abi_ulong *target_mask;
8189 unsigned i, j;
8190
8191 assert(host_size >= target_size);
8192
8193 target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
8194 if (!target_mask) {
8195 return -TARGET_EFAULT;
8196 }
8197 memset(host_mask, 0, host_size);
8198
8199 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
8200 unsigned bit = i * target_bits;
8201 abi_ulong val;
8202
8203 __get_user(val, &target_mask[i]);
8204 for (j = 0; j < target_bits; j++, bit++) {
8205 if (val & (1UL << j)) {
8206 host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
8207 }
8208 }
8209 }
8210
8211 unlock_user(target_mask, target_addr, 0);
8212 return 0;
8213}
8214
8215static int host_to_target_cpu_mask(const unsigned long *host_mask,
8216 size_t host_size,
8217 abi_ulong target_addr,
8218 size_t target_size)
8219{
8220 unsigned target_bits = sizeof(abi_ulong) * 8;
8221 unsigned host_bits = sizeof(*host_mask) * 8;
8222 abi_ulong *target_mask;
8223 unsigned i, j;
8224
8225 assert(host_size >= target_size);
8226
8227 target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
8228 if (!target_mask) {
8229 return -TARGET_EFAULT;
8230 }
8231
8232 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
8233 unsigned bit = i * target_bits;
8234 abi_ulong val = 0;
8235
8236 for (j = 0; j < target_bits; j++, bit++) {
8237 if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
8238 val |= 1UL << j;
8239 }
8240 }
8241 __put_user(val, &target_mask[i]);
8242 }
8243
8244 unlock_user(target_mask, target_addr, target_size);
8245 return 0;
8246}
8247
dc1ce18b
RH		 8248/* This is an internal helper for do_syscall so that it is easier
8249 * to have a single return point, so that actions, such as logging
8250 * of syscall results, can be performed.
8251 * All errnos that do_syscall() returns must be -TARGET_<errcode>.
8252 */
8253static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
8254 abi_long arg2, abi_long arg3, abi_long arg4,
8255 abi_long arg5, abi_long arg6, abi_long arg7,
8256 abi_long arg8)
31e31b8a 8257{
29a0af61 8258 CPUState *cpu = env_cpu(cpu_env);
992f48a0 8259 abi_long ret;
4f7f8924
AR		 8260#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
8261 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
efa92184
AR		 8262 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \
8263 || defined(TARGET_NR_statx)
31e31b8a 8264 struct stat st;
4f7f8924
AR		 8265#endif
8266#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
8267 || defined(TARGET_NR_fstatfs)
56c8f68f 8268 struct statfs stfs;
4f7f8924 8269#endif
53a5960a 8270 void *p;
3b46e624 8271
31e31b8a
FB		 8272 switch(num) {
8273 case TARGET_NR_exit:
9b056fcc 8274 /* In old applications this may be used to implement _exit(2).
6f9ff551 8275 However in threaded applications it is used for thread termination,
9b056fcc
AF		 8276 and _exit_group is used for application termination.
8277 Do thread termination if we have more then one thread. */
a0995886
TB		 8278
8279 if (block_signals()) {
72eb7ea8 8280 return -TARGET_ERESTARTSYS;
a0995886
TB		 8281 }
8282
1f81ce90 8283 pthread_mutex_lock(&clone_lock);
dd1f6349 8284
bdc44640 8285 if (CPU_NEXT(first_cpu)) {
1f81ce90 8286 TaskState *ts = cpu->opaque;
9b056fcc 8287
5325cc34 8288 object_property_set_bool(OBJECT(cpu), "realized", false, NULL);
1f81ce90
AB		 8289 object_unref(OBJECT(cpu));
8290 /*
8291 * At this point the CPU should be unrealized and removed
8292 * from cpu lists. We can clean-up the rest of the thread
8293 * data without the lock held.
8294 */
dd1f6349 8295
1f81ce90 8296 pthread_mutex_unlock(&clone_lock);
dd1f6349 8297
9b056fcc
AF		 8298 if (ts->child_tidptr) {
8299 put_user_u32(0, ts->child_tidptr);
3e8f1628
RH		 8300 do_sys_futex(g2h(cpu, ts->child_tidptr),
8301 FUTEX_WAKE, INT_MAX, NULL, NULL, 0);
9b056fcc 8302 }
a2247f8e 8303 thread_cpu = NULL;
9b056fcc 8304 g_free(ts);
70903763 8305 rcu_unregister_thread();
9b056fcc
AF		 8306 pthread_exit(NULL);
8307 }
dd1f6349 8308
1f81ce90 8309 pthread_mutex_unlock(&clone_lock);
708b6a64 8310 preexit_cleanup(cpu_env, arg1);
c2764719 8311 _exit(arg1);
72eb7ea8 8312 return 0; /* avoid warning */
31e31b8a 8313 case TARGET_NR_read:
ba584f1d
AS		 8314 if (arg2 == 0 && arg3 == 0) {
8315 return get_errno(safe_read(arg1, 0, 0));
72eb7ea8 8316 } else {
38d840e6 8317 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
2852aafd 8318 return -TARGET_EFAULT;
50afd02b 8319 ret = get_errno(safe_read(arg1, p, arg3));
e36800c9 8320 if (ret >= 0 &&
5d4d3665
LV		 8321 fd_trans_host_to_target_data(arg1)) {
8322 ret = fd_trans_host_to_target_data(arg1)(p, ret);
e36800c9 8323 }
38d840e6
AJ		 8324 unlock_user(p, arg2, ret);
8325 }
72eb7ea8 8326 return ret;
31e31b8a 8327 case TARGET_NR_write:
58cfa6c2
TGJ		 8328 if (arg2 == 0 && arg3 == 0) {
8329 return get_errno(safe_write(arg1, 0, 0));
8330 }
579a97f7 8331 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
2852aafd 8332 return -TARGET_EFAULT;
04b9bcf9
LV		 8333 if (fd_trans_target_to_host_data(arg1)) {
8334 void *copy = g_malloc(arg3);
8335 memcpy(copy, p, arg3);
8336 ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
8337 if (ret >= 0) {
8338 ret = get_errno(safe_write(arg1, copy, ret));
8339 }
8340 g_free(copy);
8341 } else {
8342 ret = get_errno(safe_write(arg1, p, arg3));
8343 }
53a5960a 8344 unlock_user(p, arg2, 0);
72eb7ea8
RH		 8345 return ret;
8346
704eff6c 8347#ifdef TARGET_NR_open
31e31b8a 8348 case TARGET_NR_open:
2f619698 8349 if (!(p = lock_user_string(arg1)))
2852aafd 8350 return -TARGET_EFAULT;
0b2effd7
RV		 8351 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
8352 target_to_host_bitmask(arg2, fcntl_flags_tbl),
8353 arg3));
e36800c9 8354 fd_trans_unregister(ret);
53a5960a 8355 unlock_user(p, arg1, 0);
72eb7ea8 8356 return ret;
704eff6c 8357#endif
82424832 8358 case TARGET_NR_openat:
579a97f7 8359 if (!(p = lock_user_string(arg2)))
2852aafd 8360 return -TARGET_EFAULT;
0b2effd7
RV		 8361 ret = get_errno(do_openat(cpu_env, arg1, p,
8362 target_to_host_bitmask(arg3, fcntl_flags_tbl),
8363 arg4));
e36800c9 8364 fd_trans_unregister(ret);
579a97f7 8365 unlock_user(p, arg2, 0);
72eb7ea8 8366 return ret;
0f0426f3
LV		 8367#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
8368 case TARGET_NR_name_to_handle_at:
8369 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
72eb7ea8 8370 return ret;
0f0426f3
LV		 8371#endif
8372#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
8373 case TARGET_NR_open_by_handle_at:
8374 ret = do_open_by_handle_at(arg1, arg2, arg3);
e36800c9 8375 fd_trans_unregister(ret);
72eb7ea8 8376 return ret;
0f0426f3 8377#endif
31e31b8a 8378 case TARGET_NR_close:
e36800c9 8379 fd_trans_unregister(arg1);
72eb7ea8
RH		 8380 return get_errno(close(arg1));
8381
31e31b8a 8382 case TARGET_NR_brk:
72eb7ea8 8383 return do_brk(arg1);
704eff6c 8384#ifdef TARGET_NR_fork
31e31b8a 8385 case TARGET_NR_fork:
72eb7ea8 8386 return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
704eff6c 8387#endif
e5febef5 8388#ifdef TARGET_NR_waitpid
31e31b8a
FB		 8389 case TARGET_NR_waitpid:
8390 {
53a5960a 8391 int status;
4af80a37 8392 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
5379557b 8393 if (!is_error(ret) && arg2 && ret
1d9d8b55 8394 && put_user_s32(host_to_target_waitstatus(status), arg2))
2852aafd 8395 return -TARGET_EFAULT;
31e31b8a 8396 }
72eb7ea8 8397 return ret;
e5febef5 8398#endif
f0cbb613
PB		 8399#ifdef TARGET_NR_waitid
8400 case TARGET_NR_waitid:
8401 {
8402 siginfo_t info;
8403 info.si_pid = 0;
4af80a37 8404 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
f0cbb613 8405 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 8406 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
2852aafd 8407 return -TARGET_EFAULT;
f0cbb613 8408 host_to_target_siginfo(p, &info);
c227f099 8409 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 8410 }
8411 }
72eb7ea8 8412 return ret;
f0cbb613 8413#endif
7a3148a9 8414#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 8415 case TARGET_NR_creat:
579a97f7 8416 if (!(p = lock_user_string(arg1)))
2852aafd 8417 return -TARGET_EFAULT;
53a5960a 8418 ret = get_errno(creat(p, arg2));
e36800c9 8419 fd_trans_unregister(ret);
53a5960a 8420 unlock_user(p, arg1, 0);
72eb7ea8 8421 return ret;
7a3148a9 8422#endif
704eff6c 8423#ifdef TARGET_NR_link
31e31b8a 8424 case TARGET_NR_link:
53a5960a
PB		 8425 {
8426 void * p2;
8427 p = lock_user_string(arg1);
8428 p2 = lock_user_string(arg2);
579a97f7
FB		 8429 if (!p || !p2)
8430 ret = -TARGET_EFAULT;
8431 else
8432 ret = get_errno(link(p, p2));
53a5960a
PB		 8433 unlock_user(p2, arg2, 0);
8434 unlock_user(p, arg1, 0);
8435 }
72eb7ea8 8436 return ret;
704eff6c 8437#endif
c0d472b1 8438#if defined(TARGET_NR_linkat)
64f0ce4c 8439 case TARGET_NR_linkat:
64f0ce4c
TS		 8440 {
8441 void * p2 = NULL;
579a97f7 8442 if (!arg2 || !arg4)
2852aafd 8443 return -TARGET_EFAULT;
64f0ce4c
TS		 8444 p = lock_user_string(arg2);
8445 p2 = lock_user_string(arg4);
579a97f7 8446 if (!p || !p2)
0da46a6e 8447 ret = -TARGET_EFAULT;
64f0ce4c 8448 else
c0d472b1 8449 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 8450 unlock_user(p, arg2, 0);
8451 unlock_user(p2, arg4, 0);
64f0ce4c 8452 }
72eb7ea8 8453 return ret;
64f0ce4c 8454#endif
704eff6c 8455#ifdef TARGET_NR_unlink
31e31b8a 8456 case TARGET_NR_unlink:
579a97f7 8457 if (!(p = lock_user_string(arg1)))
2852aafd 8458 return -TARGET_EFAULT;
53a5960a
PB		 8459 ret = get_errno(unlink(p));
8460 unlock_user(p, arg1, 0);
72eb7ea8 8461 return ret;
704eff6c 8462#endif
c0d472b1 8463#if defined(TARGET_NR_unlinkat)
8170f56b 8464 case TARGET_NR_unlinkat:
579a97f7 8465 if (!(p = lock_user_string(arg2)))
2852aafd 8466 return -TARGET_EFAULT;
c0d472b1 8467 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 8468 unlock_user(p, arg2, 0);
72eb7ea8 8469 return ret;
b7d35e65 8470#endif
31e31b8a 8471 case TARGET_NR_execve:
7854b056
FB		 8472 {
8473 char **argp, **envp;
f7341ff4 8474 int argc, envc;
992f48a0
BS		 8475 abi_ulong gp;
8476 abi_ulong guest_argp;
8477 abi_ulong guest_envp;
8478 abi_ulong addr;
7854b056 8479 char **q;
a6f79cc9 8480 int total_size = 0;
7854b056 8481
f7341ff4 8482 argc = 0;
53a5960a 8483 guest_argp = arg2;
da94d263 8484 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 8485 if (get_user_ual(addr, gp))
2852aafd 8486 return -TARGET_EFAULT;
03aa1976 8487 if (!addr)
2f619698 8488 break;
7854b056 8489 argc++;
2f619698 8490 }
f7341ff4 8491 envc = 0;
53a5960a 8492 guest_envp = arg3;
da94d263 8493 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 8494 if (get_user_ual(addr, gp))
2852aafd 8495 return -TARGET_EFAULT;
03aa1976 8496 if (!addr)
2f619698 8497 break;
7854b056 8498 envc++;
2f619698 8499 }
7854b056 8500
b936cb50
PP		 8501 argp = g_new0(char *, argc + 1);
8502 envp = g_new0(char *, envc + 1);
7854b056 8503
da94d263 8504 for (gp = guest_argp, q = argp; gp;
992f48a0 8505 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 8506 if (get_user_ual(addr, gp))
8507 goto execve_efault;
53a5960a
PB		 8508 if (!addr)
8509 break;
2f619698
FB		 8510 if (!(*q = lock_user_string(addr)))
8511 goto execve_efault;
a6f79cc9 8512 total_size += strlen(*q) + 1;
53a5960a 8513 }
f7341ff4
FB		 8514 *q = NULL;
8515
da94d263 8516 for (gp = guest_envp, q = envp; gp;
992f48a0 8517 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 8518 if (get_user_ual(addr, gp))
8519 goto execve_efault;
53a5960a
PB		 8520 if (!addr)
8521 break;
2f619698
FB		 8522 if (!(*q = lock_user_string(addr)))
8523 goto execve_efault;
a6f79cc9 8524 total_size += strlen(*q) + 1;
53a5960a 8525 }
f7341ff4 8526 *q = NULL;
7854b056 8527
2f619698
FB		 8528 if (!(p = lock_user_string(arg1)))
8529 goto execve_efault;
ffdcbe22
TB		 8530 /* Although execve() is not an interruptible syscall it is
8531 * a special case where we must use the safe_syscall wrapper:
8532 * if we allow a signal to happen before we make the host
8533 * syscall then we will 'lose' it, because at the point of
8534 * execve the process leaves QEMU's control. So we use the
8535 * safe syscall wrapper to ensure that we either take the
8536 * signal as a guest signal, or else it does not happen
8537 * before the execve completes and makes it the other
8538 * program's problem.
8539 */
8540 ret = get_errno(safe_execve(p, argp, envp));
53a5960a
PB		 8541 unlock_user(p, arg1, 0);
8542
2f619698
FB		 8543 goto execve_end;
8544
8545 execve_efault:
8546 ret = -TARGET_EFAULT;
8547
8548 execve_end:
53a5960a 8549 for (gp = guest_argp, q = argp; *q;
992f48a0 8550 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 8551 if (get_user_ual(addr, gp)
8552 || !addr)
8553 break;
53a5960a
PB		 8554 unlock_user(*q, addr, 0);
8555 }
8556 for (gp = guest_envp, q = envp; *q;
992f48a0 8557 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 8558 if (get_user_ual(addr, gp)
8559 || !addr)
8560 break;
53a5960a
PB		 8561 unlock_user(*q, addr, 0);
8562 }
b936cb50
PP		 8563
8564 g_free(argp);
8565 g_free(envp);
7854b056 8566 }
72eb7ea8 8567 return ret;
31e31b8a 8568 case TARGET_NR_chdir:
579a97f7 8569 if (!(p = lock_user_string(arg1)))
2852aafd 8570 return -TARGET_EFAULT;
53a5960a
PB		 8571 ret = get_errno(chdir(p));
8572 unlock_user(p, arg1, 0);
72eb7ea8 8573 return ret;
a315a145 8574#ifdef TARGET_NR_time
31e31b8a
FB		 8575 case TARGET_NR_time:
8576 {
53a5960a
PB		 8577 time_t host_time;
8578 ret = get_errno(time(&host_time));
2f619698
FB		 8579 if (!is_error(ret)
8580 && arg1
8581 && put_user_sal(host_time, arg1))
2852aafd 8582 return -TARGET_EFAULT;
31e31b8a 8583 }
72eb7ea8 8584 return ret;
a315a145 8585#endif
704eff6c 8586#ifdef TARGET_NR_mknod
31e31b8a 8587 case TARGET_NR_mknod:
579a97f7 8588 if (!(p = lock_user_string(arg1)))
2852aafd 8589 return -TARGET_EFAULT;
53a5960a
PB		 8590 ret = get_errno(mknod(p, arg2, arg3));
8591 unlock_user(p, arg1, 0);
72eb7ea8 8592 return ret;
704eff6c 8593#endif
c0d472b1 8594#if defined(TARGET_NR_mknodat)
75ac37a0 8595 case TARGET_NR_mknodat:
579a97f7 8596 if (!(p = lock_user_string(arg2)))
2852aafd 8597 return -TARGET_EFAULT;
c0d472b1 8598 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 8599 unlock_user(p, arg2, 0);
72eb7ea8 8600 return ret;
75ac37a0 8601#endif
704eff6c 8602#ifdef TARGET_NR_chmod
31e31b8a 8603 case TARGET_NR_chmod:
579a97f7 8604 if (!(p = lock_user_string(arg1)))
2852aafd 8605 return -TARGET_EFAULT;
53a5960a
PB		 8606 ret = get_errno(chmod(p, arg2));
8607 unlock_user(p, arg1, 0);
72eb7ea8 8608 return ret;
704eff6c 8609#endif
4f7f8924 8610#ifdef TARGET_NR_lseek
31e31b8a 8611 case TARGET_NR_lseek:
72eb7ea8 8612 return get_errno(lseek(arg1, arg2, arg3));
4f7f8924 8613#endif
9231733a
RH		 8614#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
8615 /* Alpha specific */
7a3148a9 8616 case TARGET_NR_getxpid:
9231733a 8617 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
72eb7ea8 8618 return get_errno(getpid());
7a3148a9 8619#endif
9231733a
RH		 8620#ifdef TARGET_NR_getpid
8621 case TARGET_NR_getpid:
72eb7ea8 8622 return get_errno(getpid());
9231733a 8623#endif
31e31b8a 8624 case TARGET_NR_mount:
356d771b
PB		 8625 {
8626 /* need to look at the data field */
8627 void *p2, *p3;
8628
8629 if (arg1) {
8630 p = lock_user_string(arg1);
8631 if (!p) {
2852aafd 8632 return -TARGET_EFAULT;
356d771b
PB		 8633 }
8634 } else {
8635 p = NULL;
8636 }
8637
8638 p2 = lock_user_string(arg2);
8639 if (!p2) {
8640 if (arg1) {
8641 unlock_user(p, arg1, 0);
8642 }
2852aafd 8643 return -TARGET_EFAULT;
356d771b
PB		 8644 }
8645
8646 if (arg3) {
8647 p3 = lock_user_string(arg3);
8648 if (!p3) {
8649 if (arg1) {
579a97f7 8650 unlock_user(p, arg1, 0);
356d771b
PB		 8651 }
8652 unlock_user(p2, arg2, 0);
2852aafd 8653 return -TARGET_EFAULT;
356d771b
PB		 8654 }
8655 } else {
8656 p3 = NULL;
8657 }
8658
8659 /* FIXME - arg5 should be locked, but it isn't clear how to
8660 * do that since it's not guaranteed to be a NULL-terminated
8661 * string.
8662 */
8663 if (!arg5) {
8664 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
8665 } else {
3e8f1628 8666 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(cpu, arg5));
356d771b
PB		 8667 }
8668 ret = get_errno(ret);
8669
8670 if (arg1) {
8671 unlock_user(p, arg1, 0);
8672 }
8673 unlock_user(p2, arg2, 0);
8674 if (arg3) {
8675 unlock_user(p3, arg3, 0);
8676 }
8677 }
72eb7ea8 8678 return ret;
6eb9dbf6
LV		 8679#if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount)
8680#if defined(TARGET_NR_umount)
31e31b8a 8681 case TARGET_NR_umount:
6eb9dbf6
LV		 8682#endif
8683#if defined(TARGET_NR_oldumount)
8684 case TARGET_NR_oldumount:
8685#endif
579a97f7 8686 if (!(p = lock_user_string(arg1)))
2852aafd 8687 return -TARGET_EFAULT;
53a5960a
PB		 8688 ret = get_errno(umount(p));
8689 unlock_user(p, arg1, 0);
72eb7ea8 8690 return ret;
e5febef5 8691#endif
7a3148a9 8692#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 8693 case TARGET_NR_stime:
8694 {
0f1f2d45
LV		 8695 struct timespec ts;
8696 ts.tv_nsec = 0;
8697 if (get_user_sal(ts.tv_sec, arg1)) {
2852aafd 8698 return -TARGET_EFAULT;
0f1f2d45
LV		 8699 }
8700 return get_errno(clock_settime(CLOCK_REALTIME, &ts));
31e31b8a 8701 }
7a3148a9 8702#endif
7a3148a9 8703#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a 8704 case TARGET_NR_alarm:
72eb7ea8 8705 return alarm(arg1);
7a3148a9 8706#endif
7a3148a9 8707#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a 8708 case TARGET_NR_pause:
f59ec606
TB		 8709 if (!block_signals()) {
8710 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
8711 }
72eb7ea8 8712 return -TARGET_EINTR;
7a3148a9 8713#endif
e5febef5 8714#ifdef TARGET_NR_utime
31e31b8a 8715 case TARGET_NR_utime:
ebc05488 8716 {
53a5960a
PB		 8717 struct utimbuf tbuf, *host_tbuf;
8718 struct target_utimbuf *target_tbuf;
8719 if (arg2) {
579a97f7 8720 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
2852aafd 8721 return -TARGET_EFAULT;
cbb21eed
MB		 8722 tbuf.actime = tswapal(target_tbuf->actime);
8723 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 8724 unlock_user_struct(target_tbuf, arg2, 0);
8725 host_tbuf = &tbuf;
f72e8ff4 8726 } else {
53a5960a 8727 host_tbuf = NULL;
f72e8ff4 8728 }
579a97f7 8729 if (!(p = lock_user_string(arg1)))
2852aafd 8730 return -TARGET_EFAULT;
53a5960a
PB		 8731 ret = get_errno(utime(p, host_tbuf));
8732 unlock_user(p, arg1, 0);
ebc05488 8733 }
72eb7ea8 8734 return ret;
e5febef5 8735#endif
704eff6c 8736#ifdef TARGET_NR_utimes
978a66ff
FB		 8737 case TARGET_NR_utimes:
8738 {
978a66ff 8739 struct timeval *tvp, tv[2];
53a5960a 8740 if (arg2) {
788f5ec4
TS		 8741 if (copy_from_user_timeval(&tv[0], arg2)
8742 || copy_from_user_timeval(&tv[1],
8743 arg2 + sizeof(struct target_timeval)))
2852aafd 8744 return -TARGET_EFAULT;
978a66ff
FB		 8745 tvp = tv;
8746 } else {
8747 tvp = NULL;
8748 }
579a97f7 8749 if (!(p = lock_user_string(arg1)))
2852aafd 8750 return -TARGET_EFAULT;
53a5960a
PB		 8751 ret = get_errno(utimes(p, tvp));
8752 unlock_user(p, arg1, 0);
978a66ff 8753 }
72eb7ea8 8754 return ret;
704eff6c 8755#endif
c0d472b1 8756#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 8757 case TARGET_NR_futimesat:
8758 {
8759 struct timeval *tvp, tv[2];
8760 if (arg3) {
8761 if (copy_from_user_timeval(&tv[0], arg3)
8762 || copy_from_user_timeval(&tv[1],
8763 arg3 + sizeof(struct target_timeval)))
2852aafd 8764 return -TARGET_EFAULT;
ac8a6556
AZ		 8765 tvp = tv;
8766 } else {
8767 tvp = NULL;
8768 }
2852aafd
RH		 8769 if (!(p = lock_user_string(arg2))) {
8770 return -TARGET_EFAULT;
8771 }
c0d472b1 8772 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 8773 unlock_user(p, arg2, 0);
8774 }
72eb7ea8 8775 return ret;
ac8a6556 8776#endif
704eff6c 8777#ifdef TARGET_NR_access
31e31b8a 8778 case TARGET_NR_access:
2852aafd
RH		 8779 if (!(p = lock_user_string(arg1))) {
8780 return -TARGET_EFAULT;
8781 }
719f908e 8782 ret = get_errno(access(path(p), arg2));
53a5960a 8783 unlock_user(p, arg1, 0);
72eb7ea8 8784 return ret;
704eff6c 8785#endif
92a34c10
TS		 8786#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
8787 case TARGET_NR_faccessat:
2852aafd
RH		 8788 if (!(p = lock_user_string(arg2))) {
8789 return -TARGET_EFAULT;
8790 }
c0d472b1 8791 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 8792 unlock_user(p, arg2, 0);
72eb7ea8 8793 return ret;
92a34c10 8794#endif
7a3148a9 8795#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a 8796 case TARGET_NR_nice:
72eb7ea8 8797 return get_errno(nice(arg1));
ebc05488 8798#endif
31e31b8a 8799 case TARGET_NR_sync:
04369ff2 8800 sync();
72eb7ea8 8801 return 0;
5a03cd00
AM		 8802#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
8803 case TARGET_NR_syncfs:
72eb7ea8 8804 return get_errno(syncfs(arg1));
5a03cd00 8805#endif
31e31b8a 8806 case TARGET_NR_kill:
72eb7ea8 8807 return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
704eff6c 8808#ifdef TARGET_NR_rename
31e31b8a 8809 case TARGET_NR_rename:
53a5960a
PB		 8810 {
8811 void *p2;
8812 p = lock_user_string(arg1);
8813 p2 = lock_user_string(arg2);
579a97f7
FB		 8814 if (!p || !p2)
8815 ret = -TARGET_EFAULT;
8816 else
8817 ret = get_errno(rename(p, p2));
53a5960a
PB		 8818 unlock_user(p2, arg2, 0);
8819 unlock_user(p, arg1, 0);
8820 }
72eb7ea8 8821 return ret;
704eff6c 8822#endif
c0d472b1 8823#if defined(TARGET_NR_renameat)
722183f6 8824 case TARGET_NR_renameat:
722183f6 8825 {
579a97f7 8826 void *p2;
722183f6
TS		 8827 p = lock_user_string(arg2);
8828 p2 = lock_user_string(arg4);
579a97f7 8829 if (!p || !p2)
0da46a6e 8830 ret = -TARGET_EFAULT;
722183f6 8831 else
c0d472b1 8832 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 8833 unlock_user(p2, arg4, 0);
8834 unlock_user(p, arg2, 0);
722183f6 8835 }
72eb7ea8 8836 return ret;
95d0307c
AS		 8837#endif
8838#if defined(TARGET_NR_renameat2)
8839 case TARGET_NR_renameat2:
8840 {
8841 void *p2;
8842 p = lock_user_string(arg2);
8843 p2 = lock_user_string(arg4);
8844 if (!p || !p2) {
8845 ret = -TARGET_EFAULT;
8846 } else {
8847 ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
8848 }
8849 unlock_user(p2, arg4, 0);
8850 unlock_user(p, arg2, 0);
8851 }
72eb7ea8 8852 return ret;
722183f6 8853#endif
704eff6c 8854#ifdef TARGET_NR_mkdir
31e31b8a 8855 case TARGET_NR_mkdir:
579a97f7 8856 if (!(p = lock_user_string(arg1)))
2852aafd 8857 return -TARGET_EFAULT;
53a5960a
PB		 8858 ret = get_errno(mkdir(p, arg2));
8859 unlock_user(p, arg1, 0);
72eb7ea8 8860 return ret;
704eff6c 8861#endif
c0d472b1 8862#if defined(TARGET_NR_mkdirat)
4472ad0d 8863 case TARGET_NR_mkdirat:
579a97f7 8864 if (!(p = lock_user_string(arg2)))
2852aafd 8865 return -TARGET_EFAULT;
c0d472b1 8866 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 8867 unlock_user(p, arg2, 0);
72eb7ea8 8868 return ret;
4472ad0d 8869#endif
704eff6c 8870#ifdef TARGET_NR_rmdir
31e31b8a 8871 case TARGET_NR_rmdir:
579a97f7 8872 if (!(p = lock_user_string(arg1)))
2852aafd 8873 return -TARGET_EFAULT;
53a5960a
PB		 8874 ret = get_errno(rmdir(p));
8875 unlock_user(p, arg1, 0);
72eb7ea8 8876 return ret;
704eff6c 8877#endif
31e31b8a
FB		 8878 case TARGET_NR_dup:
8879 ret = get_errno(dup(arg1));
e36800c9
LV		 8880 if (ret >= 0) {
8881 fd_trans_dup(arg1, ret);
8882 }
72eb7ea8 8883 return ret;
704eff6c 8884#ifdef TARGET_NR_pipe
31e31b8a 8885 case TARGET_NR_pipe:
72eb7ea8 8886 return do_pipe(cpu_env, arg1, 0, 0);
704eff6c 8887#endif
099d6b0f
RV		 8888#ifdef TARGET_NR_pipe2
8889 case TARGET_NR_pipe2:
72eb7ea8
RH		 8890 return do_pipe(cpu_env, arg1,
8891 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
099d6b0f 8892#endif
31e31b8a 8893 case TARGET_NR_times:
32f36bce 8894 {
53a5960a 8895 struct target_tms *tmsp;
32f36bce
FB		 8896 struct tms tms;
8897 ret = get_errno(times(&tms));
53a5960a 8898 if (arg1) {
579a97f7
FB		 8899 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
8900 if (!tmsp)
2852aafd 8901 return -TARGET_EFAULT;
cbb21eed
MB		 8902 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
8903 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
8904 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
8905 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 8906 }
c596ed17
FB		 8907 if (!is_error(ret))
8908 ret = host_to_target_clock_t(ret);
32f36bce 8909 }
72eb7ea8 8910 return ret;
31e31b8a 8911 case TARGET_NR_acct:
38d840e6
AJ		 8912 if (arg1 == 0) {
8913 ret = get_errno(acct(NULL));
8914 } else {
2852aafd
RH		 8915 if (!(p = lock_user_string(arg1))) {
8916 return -TARGET_EFAULT;
8917 }
38d840e6
AJ		 8918 ret = get_errno(acct(path(p)));
8919 unlock_user(p, arg1, 0);
8920 }
72eb7ea8 8921 return ret;
8070e7be 8922#ifdef TARGET_NR_umount2
31e31b8a 8923 case TARGET_NR_umount2:
579a97f7 8924 if (!(p = lock_user_string(arg1)))
2852aafd 8925 return -TARGET_EFAULT;
53a5960a
PB		 8926 ret = get_errno(umount2(p, arg2));
8927 unlock_user(p, arg1, 0);
72eb7ea8 8928 return ret;
ebc05488 8929#endif
31e31b8a 8930 case TARGET_NR_ioctl:
72eb7ea8 8931 return do_ioctl(arg1, arg2, arg3);
47ae93cd 8932#ifdef TARGET_NR_fcntl
31e31b8a 8933 case TARGET_NR_fcntl:
72eb7ea8 8934 return do_fcntl(arg1, arg2, arg3);
ebc05488 8935#endif
31e31b8a 8936 case TARGET_NR_setpgid:
72eb7ea8 8937 return get_errno(setpgid(arg1, arg2));
31e31b8a 8938 case TARGET_NR_umask:
72eb7ea8 8939 return get_errno(umask(arg1));
31e31b8a 8940 case TARGET_NR_chroot:
579a97f7 8941 if (!(p = lock_user_string(arg1)))
2852aafd 8942 return -TARGET_EFAULT;
53a5960a
PB		 8943 ret = get_errno(chroot(p));
8944 unlock_user(p, arg1, 0);
72eb7ea8 8945 return ret;
704eff6c 8946#ifdef TARGET_NR_dup2
31e31b8a
FB		 8947 case TARGET_NR_dup2:
8948 ret = get_errno(dup2(arg1, arg2));
e36800c9
LV		 8949 if (ret >= 0) {
8950 fd_trans_dup(arg1, arg2);
8951 }
72eb7ea8 8952 return ret;
704eff6c 8953#endif
d0927938
UH		 8954#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
8955 case TARGET_NR_dup3:
10fa993a
PM		 8956 {
8957 int host_flags;
8958
8959 if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
8960 return -EINVAL;
8961 }
8962 host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
8963 ret = get_errno(dup3(arg1, arg2, host_flags));
e36800c9
LV		 8964 if (ret >= 0) {
8965 fd_trans_dup(arg1, arg2);
8966 }
72eb7ea8 8967 return ret;
10fa993a 8968 }
d0927938 8969#endif
7a3148a9 8970#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a 8971 case TARGET_NR_getppid:
72eb7ea8 8972 return get_errno(getppid());
7a3148a9 8973#endif
704eff6c 8974#ifdef TARGET_NR_getpgrp
31e31b8a 8975 case TARGET_NR_getpgrp:
72eb7ea8 8976 return get_errno(getpgrp());
704eff6c 8977#endif
31e31b8a 8978 case TARGET_NR_setsid:
72eb7ea8 8979 return get_errno(setsid());
e5febef5 8980#ifdef TARGET_NR_sigaction
31e31b8a 8981 case TARGET_NR_sigaction:
31e31b8a 8982 {
6049f4f8
RH		 8983#if defined(TARGET_ALPHA)
8984 struct target_sigaction act, oact, *pact = 0;
53a5960a 8985 struct target_old_sigaction *old_act;
53a5960a 8986 if (arg2) {
579a97f7 8987 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 8988 return -TARGET_EFAULT;
66fb9763
FB		 8989 act._sa_handler = old_act->_sa_handler;
8990 target_siginitset(&act.sa_mask, old_act->sa_mask);
8991 act.sa_flags = old_act->sa_flags;
6049f4f8 8992 act.sa_restorer = 0;
53a5960a 8993 unlock_user_struct(old_act, arg2, 0);
66fb9763 8994 pact = &act;
66fb9763
FB		 8995 }
8996 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 8997 if (!is_error(ret) && arg3) {
579a97f7 8998 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 8999 return -TARGET_EFAULT;
53a5960a
PB		 9000 old_act->_sa_handler = oact._sa_handler;
9001 old_act->sa_mask = oact.sa_mask.sig[0];
9002 old_act->sa_flags = oact.sa_flags;
53a5960a 9003 unlock_user_struct(old_act, arg3, 1);
66fb9763 9004 }
6049f4f8 9005#elif defined(TARGET_MIPS)
106ec879
FB		 9006 struct target_sigaction act, oact, *pact, *old_act;
9007
9008 if (arg2) {
579a97f7 9009 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 9010 return -TARGET_EFAULT;
106ec879
FB		 9011 act._sa_handler = old_act->_sa_handler;
9012 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
9013 act.sa_flags = old_act->sa_flags;
9014 unlock_user_struct(old_act, arg2, 0);
9015 pact = &act;
9016 } else {
9017 pact = NULL;
9018 }
9019
9020 ret = get_errno(do_sigaction(arg1, pact, &oact));
9021
9022 if (!is_error(ret) && arg3) {
579a97f7 9023 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 9024 return -TARGET_EFAULT;
106ec879
FB		 9025 old_act->_sa_handler = oact._sa_handler;
9026 old_act->sa_flags = oact.sa_flags;
9027 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
9028 old_act->sa_mask.sig[1] = 0;
9029 old_act->sa_mask.sig[2] = 0;
9030 old_act->sa_mask.sig[3] = 0;
9031 unlock_user_struct(old_act, arg3, 1);
9032 }
6049f4f8
RH		 9033#else
9034 struct target_old_sigaction *old_act;
9035 struct target_sigaction act, oact, *pact;
9036 if (arg2) {
9037 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 9038 return -TARGET_EFAULT;
6049f4f8
RH		 9039 act._sa_handler = old_act->_sa_handler;
9040 target_siginitset(&act.sa_mask, old_act->sa_mask);
9041 act.sa_flags = old_act->sa_flags;
9042 act.sa_restorer = old_act->sa_restorer;
5de154e8
LV		 9043#ifdef TARGET_ARCH_HAS_KA_RESTORER
9044 act.ka_restorer = 0;
9045#endif
6049f4f8
RH		 9046 unlock_user_struct(old_act, arg2, 0);
9047 pact = &act;
9048 } else {
9049 pact = NULL;
9050 }
9051 ret = get_errno(do_sigaction(arg1, pact, &oact));
9052 if (!is_error(ret) && arg3) {
9053 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 9054 return -TARGET_EFAULT;
6049f4f8
RH		 9055 old_act->_sa_handler = oact._sa_handler;
9056 old_act->sa_mask = oact.sa_mask.sig[0];
9057 old_act->sa_flags = oact.sa_flags;
9058 old_act->sa_restorer = oact.sa_restorer;
9059 unlock_user_struct(old_act, arg3, 1);
9060 }
388bb21a 9061#endif
31e31b8a 9062 }
72eb7ea8 9063 return ret;
e5febef5 9064#endif
66fb9763 9065 case TARGET_NR_rt_sigaction:
53a5960a 9066 {
6049f4f8 9067#if defined(TARGET_ALPHA)
78bfef72
PM		 9068 /* For Alpha and SPARC this is a 5 argument syscall, with
9069 * a 'restorer' parameter which must be copied into the
9070 * sa_restorer field of the sigaction struct.
9071 * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
9072 * and arg5 is the sigsetsize.
9073 * Alpha also has a separate rt_sigaction struct that it uses
9074 * here; SPARC uses the usual sigaction struct.
9075 */
6049f4f8 9076 struct target_rt_sigaction *rt_act;
78bfef72 9077 struct target_sigaction act, oact, *pact = 0;
c815701e
PM		 9078
9079 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 9080 return -TARGET_EINVAL;
c815701e 9081 }
6049f4f8
RH		 9082 if (arg2) {
9083 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
2852aafd 9084 return -TARGET_EFAULT;
6049f4f8
RH		 9085 act._sa_handler = rt_act->_sa_handler;
9086 act.sa_mask = rt_act->sa_mask;
9087 act.sa_flags = rt_act->sa_flags;
9088 act.sa_restorer = arg5;
9089 unlock_user_struct(rt_act, arg2, 0);
9090 pact = &act;
9091 }
9092 ret = get_errno(do_sigaction(arg1, pact, &oact));
9093 if (!is_error(ret) && arg3) {
9094 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
2852aafd 9095 return -TARGET_EFAULT;
6049f4f8
RH		 9096 rt_act->_sa_handler = oact._sa_handler;
9097 rt_act->sa_mask = oact.sa_mask;
9098 rt_act->sa_flags = oact.sa_flags;
9099 unlock_user_struct(rt_act, arg3, 1);
9100 }
9101#else
78bfef72
PM		 9102#ifdef TARGET_SPARC
9103 target_ulong restorer = arg4;
9104 target_ulong sigsetsize = arg5;
9105#else
9106 target_ulong sigsetsize = arg4;
9107#endif
53a5960a
PB		 9108 struct target_sigaction *act;
9109 struct target_sigaction *oact;
9110
78bfef72 9111 if (sigsetsize != sizeof(target_sigset_t)) {
72eb7ea8 9112 return -TARGET_EINVAL;
c815701e 9113 }
579a97f7 9114 if (arg2) {
78bfef72 9115 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
2852aafd 9116 return -TARGET_EFAULT;
78bfef72 9117 }
5de154e8
LV		 9118#ifdef TARGET_ARCH_HAS_KA_RESTORER
9119 act->ka_restorer = restorer;
78bfef72
PM		 9120#endif
9121 } else {
53a5960a 9122 act = NULL;
78bfef72 9123 }
579a97f7
FB		 9124 if (arg3) {
9125 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
9126 ret = -TARGET_EFAULT;
9127 goto rt_sigaction_fail;
9128 }
9129 } else
53a5960a
PB		 9130 oact = NULL;
9131 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 9132 rt_sigaction_fail:
9133 if (act)
53a5960a 9134 unlock_user_struct(act, arg2, 0);
579a97f7 9135 if (oact)
53a5960a 9136 unlock_user_struct(oact, arg3, 1);
6049f4f8 9137#endif
53a5960a 9138 }
72eb7ea8 9139 return ret;
7a3148a9 9140#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 9141 case TARGET_NR_sgetmask:
66fb9763
FB		 9142 {
9143 sigset_t cur_set;
992f48a0 9144 abi_ulong target_set;
3d3efba0
PM		 9145 ret = do_sigprocmask(0, NULL, &cur_set);
9146 if (!ret) {
9147 host_to_target_old_sigset(&target_set, &cur_set);
9148 ret = target_set;
9149 }
66fb9763 9150 }
72eb7ea8 9151 return ret;
7a3148a9
JM		 9152#endif
9153#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 9154 case TARGET_NR_ssetmask:
66fb9763 9155 {
a8617d8c 9156 sigset_t set, oset;
992f48a0 9157 abi_ulong target_set = arg1;
66fb9763 9158 target_to_host_old_sigset(&set, &target_set);
3d3efba0
PM		 9159 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
9160 if (!ret) {
9161 host_to_target_old_sigset(&target_set, &oset);
9162 ret = target_set;
9163 }
66fb9763 9164 }
72eb7ea8 9165 return ret;
7a3148a9 9166#endif
e5febef5 9167#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 9168 case TARGET_NR_sigprocmask:
9169 {
a5b3b13b
RH		 9170#if defined(TARGET_ALPHA)
9171 sigset_t set, oldset;
9172 abi_ulong mask;
9173 int how;
9174
9175 switch (arg1) {
9176 case TARGET_SIG_BLOCK:
9177 how = SIG_BLOCK;
9178 break;
9179 case TARGET_SIG_UNBLOCK:
9180 how = SIG_UNBLOCK;
9181 break;
9182 case TARGET_SIG_SETMASK:
9183 how = SIG_SETMASK;
9184 break;
9185 default:
259841c1 9186 return -TARGET_EINVAL;
a5b3b13b
RH		 9187 }
9188 mask = arg2;
9189 target_to_host_old_sigset(&set, &mask);
9190
3d3efba0 9191 ret = do_sigprocmask(how, &set, &oldset);
a5b3b13b
RH		 9192 if (!is_error(ret)) {
9193 host_to_target_old_sigset(&mask, &oldset);
9194 ret = mask;
0229f5a3 9195 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 9196 }
9197#else
66fb9763 9198 sigset_t set, oldset, *set_ptr;
a5b3b13b 9199 int how;
3b46e624 9200
53a5960a 9201 if (arg2) {
a5b3b13b 9202 switch (arg1) {
66fb9763
FB		 9203 case TARGET_SIG_BLOCK:
9204 how = SIG_BLOCK;
9205 break;
9206 case TARGET_SIG_UNBLOCK:
9207 how = SIG_UNBLOCK;
9208 break;
9209 case TARGET_SIG_SETMASK:
9210 how = SIG_SETMASK;
9211 break;
9212 default:
259841c1 9213 return -TARGET_EINVAL;
66fb9763 9214 }
c227f099 9215 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 9216 return -TARGET_EFAULT;
53a5960a
PB		 9217 target_to_host_old_sigset(&set, p);
9218 unlock_user(p, arg2, 0);
66fb9763
FB		 9219 set_ptr = &set;
9220 } else {
9221 how = 0;
9222 set_ptr = NULL;
9223 }
3d3efba0 9224 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 9225 if (!is_error(ret) && arg3) {
c227f099 9226 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 9227 return -TARGET_EFAULT;
53a5960a 9228 host_to_target_old_sigset(p, &oldset);
c227f099 9229 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 9230 }
a5b3b13b 9231#endif
66fb9763 9232 }
72eb7ea8 9233 return ret;
e5febef5 9234#endif
66fb9763
FB		 9235 case TARGET_NR_rt_sigprocmask:
9236 {
9237 int how = arg1;
9238 sigset_t set, oldset, *set_ptr;
3b46e624 9239
c815701e 9240 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 9241 return -TARGET_EINVAL;
c815701e
PM		 9242 }
9243
53a5960a 9244 if (arg2) {
66fb9763
FB		 9245 switch(how) {
9246 case TARGET_SIG_BLOCK:
9247 how = SIG_BLOCK;
9248 break;
9249 case TARGET_SIG_UNBLOCK:
9250 how = SIG_UNBLOCK;
9251 break;
9252 case TARGET_SIG_SETMASK:
9253 how = SIG_SETMASK;
9254 break;
9255 default:
259841c1 9256 return -TARGET_EINVAL;
66fb9763 9257 }
c227f099 9258 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 9259 return -TARGET_EFAULT;
53a5960a
PB		 9260 target_to_host_sigset(&set, p);
9261 unlock_user(p, arg2, 0);
66fb9763
FB		 9262 set_ptr = &set;
9263 } else {
9264 how = 0;
9265 set_ptr = NULL;
9266 }
3d3efba0 9267 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 9268 if (!is_error(ret) && arg3) {
c227f099 9269 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 9270 return -TARGET_EFAULT;
53a5960a 9271 host_to_target_sigset(p, &oldset);
c227f099 9272 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 9273 }
9274 }
72eb7ea8 9275 return ret;
e5febef5 9276#ifdef TARGET_NR_sigpending
66fb9763
FB		 9277 case TARGET_NR_sigpending:
9278 {
9279 sigset_t set;
9280 ret = get_errno(sigpending(&set));
9281 if (!is_error(ret)) {
c227f099 9282 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 9283 return -TARGET_EFAULT;
53a5960a 9284 host_to_target_old_sigset(p, &set);
c227f099 9285 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 9286 }
9287 }
72eb7ea8 9288 return ret;
e5febef5 9289#endif
66fb9763
FB		 9290 case TARGET_NR_rt_sigpending:
9291 {
9292 sigset_t set;
c815701e
PM		 9293
9294 /* Yes, this check is >, not != like most. We follow the kernel's
9295 * logic and it does it like this because it implements
9296 * NR_sigpending through the same code path, and in that case
9297 * the old_sigset_t is smaller in size.
9298 */
9299 if (arg2 > sizeof(target_sigset_t)) {
72eb7ea8 9300 return -TARGET_EINVAL;
c815701e
PM		 9301 }
9302
66fb9763
FB		 9303 ret = get_errno(sigpending(&set));
9304 if (!is_error(ret)) {
c227f099 9305 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 9306 return -TARGET_EFAULT;
53a5960a 9307 host_to_target_sigset(p, &set);
c227f099 9308 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 9309 }
9310 }
72eb7ea8 9311 return ret;
e5febef5 9312#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 9313 case TARGET_NR_sigsuspend:
9314 {
3d3efba0 9315 TaskState *ts = cpu->opaque;
f43ce12b
RH		 9316#if defined(TARGET_ALPHA)
9317 abi_ulong mask = arg1;
3d3efba0 9318 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
f43ce12b 9319#else
c227f099 9320 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 9321 return -TARGET_EFAULT;
3d3efba0 9322 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
53a5960a 9323 unlock_user(p, arg1, 0);
f43ce12b 9324#endif
3d3efba0
PM		 9325 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
9326 SIGSET_T_SIZE));
9327 if (ret != -TARGET_ERESTARTSYS) {
9328 ts->in_sigsuspend = 1;
9329 }
66fb9763 9330 }
72eb7ea8 9331 return ret;
e5febef5 9332#endif
66fb9763
FB		 9333 case TARGET_NR_rt_sigsuspend:
9334 {
3d3efba0 9335 TaskState *ts = cpu->opaque;
c815701e
PM		 9336
9337 if (arg2 != sizeof(target_sigset_t)) {
72eb7ea8 9338 return -TARGET_EINVAL;
c815701e 9339 }
c227f099 9340 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 9341 return -TARGET_EFAULT;
3d3efba0 9342 target_to_host_sigset(&ts->sigsuspend_mask, p);
53a5960a 9343 unlock_user(p, arg1, 0);
3d3efba0
PM		 9344 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
9345 SIGSET_T_SIZE));
9346 if (ret != -TARGET_ERESTARTSYS) {
9347 ts->in_sigsuspend = 1;
9348 }
66fb9763 9349 }
72eb7ea8 9350 return ret;
859e8a89 9351#ifdef TARGET_NR_rt_sigtimedwait
66fb9763
FB		 9352 case TARGET_NR_rt_sigtimedwait:
9353 {
66fb9763
FB		 9354 sigset_t set;
9355 struct timespec uts, *puts;
9356 siginfo_t uinfo;
3b46e624 9357
c815701e 9358 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 9359 return -TARGET_EINVAL;
c815701e
PM		 9360 }
9361
c227f099 9362 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 9363 return -TARGET_EFAULT;
53a5960a
PB		 9364 target_to_host_sigset(&set, p);
9365 unlock_user(p, arg1, 0);
9366 if (arg3) {
66fb9763 9367 puts = &uts;
4d213001
FB		 9368 if (target_to_host_timespec(puts, arg3)) {
9369 return -TARGET_EFAULT;
9370 }
66fb9763
FB		 9371 } else {
9372 puts = NULL;
9373 }
b3f82330
PM		 9374 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
9375 SIGSET_T_SIZE));
974a196d
PJ		 9376 if (!is_error(ret)) {
9377 if (arg2) {
9378 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
9379 0);
9380 if (!p) {
2852aafd 9381 return -TARGET_EFAULT;
974a196d
PJ		 9382 }
9383 host_to_target_siginfo(p, &uinfo);
9384 unlock_user(p, arg2, sizeof(target_siginfo_t));
9385 }
9386 ret = host_to_target_signal(ret);
66fb9763
FB		 9387 }
9388 }
72eb7ea8 9389 return ret;
ddcbde15
FB		 9390#endif
9391#ifdef TARGET_NR_rt_sigtimedwait_time64
9392 case TARGET_NR_rt_sigtimedwait_time64:
9393 {
9394 sigset_t set;
9395 struct timespec uts, *puts;
9396 siginfo_t uinfo;
9397
9398 if (arg4 != sizeof(target_sigset_t)) {
9399 return -TARGET_EINVAL;
9400 }
9401
9402 p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1);
9403 if (!p) {
9404 return -TARGET_EFAULT;
9405 }
9406 target_to_host_sigset(&set, p);
9407 unlock_user(p, arg1, 0);
9408 if (arg3) {
9409 puts = &uts;
9410 if (target_to_host_timespec64(puts, arg3)) {
9411 return -TARGET_EFAULT;
9412 }
9413 } else {
9414 puts = NULL;
9415 }
9416 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
9417 SIGSET_T_SIZE));
9418 if (!is_error(ret)) {
9419 if (arg2) {
9420 p = lock_user(VERIFY_WRITE, arg2,
9421 sizeof(target_siginfo_t), 0);
9422 if (!p) {
9423 return -TARGET_EFAULT;
9424 }
9425 host_to_target_siginfo(p, &uinfo);
9426 unlock_user(p, arg2, sizeof(target_siginfo_t));
9427 }
9428 ret = host_to_target_signal(ret);
9429 }
9430 }
9431 return ret;
859e8a89 9432#endif
66fb9763
FB		 9433 case TARGET_NR_rt_sigqueueinfo:
9434 {
9435 siginfo_t uinfo;
4debae6f
PM		 9436
9437 p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
9438 if (!p) {
2852aafd 9439 return -TARGET_EFAULT;
4debae6f 9440 }
53a5960a 9441 target_to_host_siginfo(&uinfo, p);
d8b6d892 9442 unlock_user(p, arg3, 0);
66fb9763
FB		 9443 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
9444 }
72eb7ea8 9445 return ret;
cf8b8bfc
MS		 9446 case TARGET_NR_rt_tgsigqueueinfo:
9447 {
9448 siginfo_t uinfo;
9449
9450 p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
9451 if (!p) {
2852aafd 9452 return -TARGET_EFAULT;
cf8b8bfc
MS		 9453 }
9454 target_to_host_siginfo(&uinfo, p);
9455 unlock_user(p, arg4, 0);
9456 ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
9457 }
72eb7ea8 9458 return ret;
e5febef5 9459#ifdef TARGET_NR_sigreturn
66fb9763 9460 case TARGET_NR_sigreturn:
3d3efba0 9461 if (block_signals()) {
72eb7ea8 9462 return -TARGET_ERESTARTSYS;
3d3efba0 9463 }
72eb7ea8 9464 return do_sigreturn(cpu_env);
e5febef5 9465#endif
66fb9763 9466 case TARGET_NR_rt_sigreturn:
3d3efba0 9467 if (block_signals()) {
72eb7ea8 9468 return -TARGET_ERESTARTSYS;
3d3efba0 9469 }
72eb7ea8 9470 return do_rt_sigreturn(cpu_env);
31e31b8a 9471 case TARGET_NR_sethostname:
579a97f7 9472 if (!(p = lock_user_string(arg1)))
2852aafd 9473 return -TARGET_EFAULT;
53a5960a
PB		 9474 ret = get_errno(sethostname(p, arg2));
9475 unlock_user(p, arg1, 0);
72eb7ea8 9476 return ret;
4f7f8924 9477#ifdef TARGET_NR_setrlimit
31e31b8a 9478 case TARGET_NR_setrlimit:
9de5e440 9479 {
e22b7015 9480 int resource = target_to_host_resource(arg1);
53a5960a 9481 struct target_rlimit *target_rlim;
9de5e440 9482 struct rlimit rlim;
579a97f7 9483 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
2852aafd 9484 return -TARGET_EFAULT;
81bbe906
TY		 9485 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
9486 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 9487 unlock_user_struct(target_rlim, arg2, 0);
5dfa88f7
MF		 9488 /*
9489 * If we just passed through resource limit settings for memory then
9490 * they would also apply to QEMU's own allocations, and QEMU will
9491 * crash or hang or die if its allocations fail. Ideally we would
9492 * track the guest allocations in QEMU and apply the limits ourselves.
9493 * For now, just tell the guest the call succeeded but don't actually
9494 * limit anything.
9495 */
9496 if (resource != RLIMIT_AS &&
9497 resource != RLIMIT_DATA &&
9498 resource != RLIMIT_STACK) {
9499 return get_errno(setrlimit(resource, &rlim));
9500 } else {
9501 return 0;
9502 }
9de5e440 9503 }
4f7f8924
AR		 9504#endif
9505#ifdef TARGET_NR_getrlimit
31e31b8a 9506 case TARGET_NR_getrlimit:
9de5e440 9507 {
e22b7015 9508 int resource = target_to_host_resource(arg1);
53a5960a 9509 struct target_rlimit *target_rlim;
9de5e440 9510 struct rlimit rlim;
3b46e624 9511
9de5e440
FB		 9512 ret = get_errno(getrlimit(resource, &rlim));
9513 if (!is_error(ret)) {
579a97f7 9514 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 9515 return -TARGET_EFAULT;
81bbe906
TY		 9516 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
9517 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 9518 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 9519 }
9520 }
72eb7ea8 9521 return ret;
4f7f8924 9522#endif
31e31b8a 9523 case TARGET_NR_getrusage:
b409186b
FB		 9524 {
9525 struct rusage rusage;
b409186b
FB		 9526 ret = get_errno(getrusage(arg1, &rusage));
9527 if (!is_error(ret)) {
a39fb273 9528 ret = host_to_target_rusage(arg2, &rusage);
b409186b
FB		 9529 }
9530 }
72eb7ea8 9531 return ret;
859e8a89 9532#if defined(TARGET_NR_gettimeofday)
31e31b8a
FB		 9533 case TARGET_NR_gettimeofday:
9534 {
31e31b8a 9535 struct timeval tv;
a52f5f87
RH		 9536 struct timezone tz;
9537
9538 ret = get_errno(gettimeofday(&tv, &tz));
31e31b8a 9539 if (!is_error(ret)) {
a52f5f87
RH		 9540 if (arg1 && copy_to_user_timeval(arg1, &tv)) {
9541 return -TARGET_EFAULT;
9542 }
9543 if (arg2 && copy_to_user_timezone(arg2, &tz)) {
2852aafd 9544 return -TARGET_EFAULT;
a52f5f87 9545 }
31e31b8a
FB		 9546 }
9547 }
72eb7ea8 9548 return ret;
859e8a89
AF		 9549#endif
9550#if defined(TARGET_NR_settimeofday)
31e31b8a
FB		 9551 case TARGET_NR_settimeofday:
9552 {
b67d8031 9553 struct timeval tv, *ptv = NULL;
ef4467e9
PB		 9554 struct timezone tz, *ptz = NULL;
9555
b67d8031
PB		 9556 if (arg1) {
9557 if (copy_from_user_timeval(&tv, arg1)) {
2852aafd 9558 return -TARGET_EFAULT;
b67d8031
PB		 9559 }
9560 ptv = &tv;
9561 }
ef4467e9
PB		 9562
9563 if (arg2) {
9564 if (copy_from_user_timezone(&tz, arg2)) {
2852aafd 9565 return -TARGET_EFAULT;
ef4467e9
PB		 9566 }
9567 ptz = &tz;
9568 }
9569
72eb7ea8 9570 return get_errno(settimeofday(ptv, ptz));
31e31b8a 9571 }
859e8a89 9572#endif
9468a5d4 9573#if defined(TARGET_NR_select)
31e31b8a 9574 case TARGET_NR_select:
5457dc9e
LV		 9575#if defined(TARGET_WANT_NI_OLD_SELECT)
9576 /* some architectures used to have old_select here
9577 * but now ENOSYS it.
9578 */
9579 ret = -TARGET_ENOSYS;
9580#elif defined(TARGET_WANT_OLD_SYS_SELECT)
9581 ret = do_old_select(arg1);
9468a5d4 9582#else
5457dc9e 9583 ret = do_select(arg1, arg2, arg3, arg4, arg5);
9468a5d4 9584#endif
72eb7ea8 9585 return ret;
9e42382f
RV		 9586#endif
9587#ifdef TARGET_NR_pselect6
9588 case TARGET_NR_pselect6:
e5ce9688
FB		 9589 return do_pselect6(arg1, arg2, arg3, arg4, arg5, arg6, false);
9590#endif
9591#ifdef TARGET_NR_pselect6_time64
9592 case TARGET_NR_pselect6_time64:
9593 return do_pselect6(arg1, arg2, arg3, arg4, arg5, arg6, true);
048f6b4d 9594#endif
704eff6c 9595#ifdef TARGET_NR_symlink
31e31b8a 9596 case TARGET_NR_symlink:
53a5960a
PB		 9597 {
9598 void *p2;
9599 p = lock_user_string(arg1);
9600 p2 = lock_user_string(arg2);
579a97f7
FB		 9601 if (!p || !p2)
9602 ret = -TARGET_EFAULT;
9603 else
9604 ret = get_errno(symlink(p, p2));
53a5960a
PB		 9605 unlock_user(p2, arg2, 0);
9606 unlock_user(p, arg1, 0);
9607 }
72eb7ea8 9608 return ret;
704eff6c 9609#endif
c0d472b1 9610#if defined(TARGET_NR_symlinkat)
f0b6243d 9611 case TARGET_NR_symlinkat:
f0b6243d 9612 {
579a97f7 9613 void *p2;
f0b6243d
TS		 9614 p = lock_user_string(arg1);
9615 p2 = lock_user_string(arg3);
579a97f7 9616 if (!p || !p2)
0da46a6e 9617 ret = -TARGET_EFAULT;
f0b6243d 9618 else
c0d472b1 9619 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 9620 unlock_user(p2, arg3, 0);
9621 unlock_user(p, arg1, 0);
f0b6243d 9622 }
72eb7ea8 9623 return ret;
f0b6243d 9624#endif
704eff6c 9625#ifdef TARGET_NR_readlink
31e31b8a 9626 case TARGET_NR_readlink:
53a5960a 9627 {
463d8e73 9628 void *p2;
53a5960a 9629 p = lock_user_string(arg1);
579a97f7 9630 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 9631 if (!p || !p2) {
579a97f7 9632 ret = -TARGET_EFAULT;
f17f4989
MF		 9633 } else if (!arg3) {
9634 /* Short circuit this for the magic exe check. */
9635 ret = -TARGET_EINVAL;
463d8e73
AS		 9636 } else if (is_proc_myself((const char *)p, "exe")) {
9637 char real[PATH_MAX], *temp;
9638 temp = realpath(exec_path, real);
f17f4989
MF		 9639 /* Return value is # of bytes that we wrote to the buffer. */
9640 if (temp == NULL) {
9641 ret = get_errno(-1);
9642 } else {
9643 /* Don't worry about sign mismatch as earlier mapping
9644 * logic would have thrown a bad address error. */
9645 ret = MIN(strlen(real), arg3);
9646 /* We cannot NUL terminate the string. */
9647 memcpy(p2, real, ret);
9648 }
463d8e73
AS		 9649 } else {
9650 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 9651 }
53a5960a
PB		 9652 unlock_user(p2, arg2, ret);
9653 unlock_user(p, arg1, 0);
9654 }
72eb7ea8 9655 return ret;
704eff6c 9656#endif
c0d472b1 9657#if defined(TARGET_NR_readlinkat)
5e0ccb18 9658 case TARGET_NR_readlinkat:
5e0ccb18 9659 {
579a97f7 9660 void *p2;
5e0ccb18 9661 p = lock_user_string(arg2);
579a97f7 9662 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 9663 if (!p || !p2) {
9664 ret = -TARGET_EFAULT;
9665 } else if (is_proc_myself((const char *)p, "exe")) {
9666 char real[PATH_MAX], *temp;
9667 temp = realpath(exec_path, real);
9668 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
9669 snprintf((char *)p2, arg4, "%s", real);
9670 } else {
c0d472b1 9671 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 9672 }
579a97f7
FB		 9673 unlock_user(p2, arg3, ret);
9674 unlock_user(p, arg2, 0);
5e0ccb18 9675 }
72eb7ea8 9676 return ret;
5e0ccb18 9677#endif
e5febef5 9678#ifdef TARGET_NR_swapon
31e31b8a 9679 case TARGET_NR_swapon:
579a97f7 9680 if (!(p = lock_user_string(arg1)))
2852aafd 9681 return -TARGET_EFAULT;
53a5960a
PB		 9682 ret = get_errno(swapon(p, arg2));
9683 unlock_user(p, arg1, 0);
72eb7ea8 9684 return ret;
e5febef5 9685#endif
31e31b8a 9686 case TARGET_NR_reboot:
c07ecc68
LV		 9687 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
9688 /* arg4 must be ignored in all other cases */
9689 p = lock_user_string(arg4);
9690 if (!p) {
2852aafd 9691 return -TARGET_EFAULT;
c07ecc68
LV		 9692 }
9693 ret = get_errno(reboot(arg1, arg2, arg3, p));
9694 unlock_user(p, arg4, 0);
9695 } else {
9696 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
9697 }
72eb7ea8 9698 return ret;
e5febef5 9699#ifdef TARGET_NR_mmap
31e31b8a 9700 case TARGET_NR_mmap:
09701199
AG		 9701#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
9702 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 9703 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
9704 || defined(TARGET_S390X)
31e31b8a 9705 {
992f48a0
BS		 9706 abi_ulong *v;
9707 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7 9708 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
2852aafd 9709 return -TARGET_EFAULT;
cbb21eed
MB		 9710 v1 = tswapal(v[0]);
9711 v2 = tswapal(v[1]);
9712 v3 = tswapal(v[2]);
9713 v4 = tswapal(v[3]);
9714 v5 = tswapal(v[4]);
9715 v6 = tswapal(v[5]);
53a5960a 9716 unlock_user(v, arg1, 0);
5fafdf24 9717 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 9718 target_to_host_bitmask(v4, mmap_flags_tbl),
9719 v5, v6));
31e31b8a 9720 }
31e31b8a 9721#else
ee1bf83d 9722 /* mmap pointers are always untagged */
5fafdf24
TS		 9723 ret = get_errno(target_mmap(arg1, arg2, arg3,
9724 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 9725 arg5,
9726 arg6));
31e31b8a 9727#endif
72eb7ea8 9728 return ret;
e5febef5 9729#endif
a315a145 9730#ifdef TARGET_NR_mmap2
6fb883e8 9731 case TARGET_NR_mmap2:
bb7ec043 9732#ifndef MMAP_SHIFT
c573ff67 9733#define MMAP_SHIFT 12
c573ff67 9734#endif
72eb7ea8
RH		 9735 ret = target_mmap(arg1, arg2, arg3,
9736 target_to_host_bitmask(arg4, mmap_flags_tbl),
9737 arg5, arg6 << MMAP_SHIFT);
9738 return get_errno(ret);
a315a145 9739#endif
31e31b8a 9740 case TARGET_NR_munmap:
ee1bf83d 9741 arg1 = cpu_untagged_addr(cpu, arg1);
72eb7ea8 9742 return get_errno(target_munmap(arg1, arg2));
9de5e440 9743 case TARGET_NR_mprotect:
ee1bf83d 9744 arg1 = cpu_untagged_addr(cpu, arg1);
97374d38 9745 {
0429a971 9746 TaskState *ts = cpu->opaque;
97374d38
PB		 9747 /* Special hack to detect libc making the stack executable. */
9748 if ((arg3 & PROT_GROWSDOWN)
9749 && arg1 >= ts->info->stack_limit
9750 && arg1 <= ts->info->start_stack) {
9751 arg3 &= ~PROT_GROWSDOWN;
9752 arg2 = arg2 + arg1 - ts->info->stack_limit;
9753 arg1 = ts->info->stack_limit;
9754 }
9755 }
72eb7ea8 9756 return get_errno(target_mprotect(arg1, arg2, arg3));
e5febef5 9757#ifdef TARGET_NR_mremap
9de5e440 9758 case TARGET_NR_mremap:
ee1bf83d
RH		 9759 arg1 = cpu_untagged_addr(cpu, arg1);
9760 /* mremap new_addr (arg5) is always untagged */
72eb7ea8 9761 return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
e5febef5 9762#endif
53a5960a 9763 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 9764#ifdef TARGET_NR_msync
9de5e440 9765 case TARGET_NR_msync:
3e8f1628 9766 return get_errno(msync(g2h(cpu, arg1), arg2, arg3));
e5febef5
TS		 9767#endif
9768#ifdef TARGET_NR_mlock
9de5e440 9769 case TARGET_NR_mlock:
3e8f1628 9770 return get_errno(mlock(g2h(cpu, arg1), arg2));
e5febef5
TS		 9771#endif
9772#ifdef TARGET_NR_munlock
9de5e440 9773 case TARGET_NR_munlock:
3e8f1628 9774 return get_errno(munlock(g2h(cpu, arg1), arg2));
e5febef5
TS		 9775#endif
9776#ifdef TARGET_NR_mlockall
9de5e440 9777 case TARGET_NR_mlockall:
72eb7ea8 9778 return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
e5febef5
TS		 9779#endif
9780#ifdef TARGET_NR_munlockall
9de5e440 9781 case TARGET_NR_munlockall:
72eb7ea8 9782 return get_errno(munlockall());
e5febef5 9783#endif
4f7f8924 9784#ifdef TARGET_NR_truncate
31e31b8a 9785 case TARGET_NR_truncate:
579a97f7 9786 if (!(p = lock_user_string(arg1)))
2852aafd 9787 return -TARGET_EFAULT;
53a5960a
PB		 9788 ret = get_errno(truncate(p, arg2));
9789 unlock_user(p, arg1, 0);
72eb7ea8 9790 return ret;
4f7f8924
AR		 9791#endif
9792#ifdef TARGET_NR_ftruncate
31e31b8a 9793 case TARGET_NR_ftruncate:
72eb7ea8 9794 return get_errno(ftruncate(arg1, arg2));
4f7f8924 9795#endif
31e31b8a 9796 case TARGET_NR_fchmod:
72eb7ea8 9797 return get_errno(fchmod(arg1, arg2));
c0d472b1 9798#if defined(TARGET_NR_fchmodat)
814d7977 9799 case TARGET_NR_fchmodat:
579a97f7 9800 if (!(p = lock_user_string(arg2)))
2852aafd 9801 return -TARGET_EFAULT;
c0d472b1 9802 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 9803 unlock_user(p, arg2, 0);
72eb7ea8 9804 return ret;
814d7977 9805#endif
31e31b8a 9806 case TARGET_NR_getpriority:
95c09828
RH		 9807 /* Note that negative values are valid for getpriority, so we must
9808 differentiate based on errno settings. */
9809 errno = 0;
9810 ret = getpriority(arg1, arg2);
9811 if (ret == -1 && errno != 0) {
72eb7ea8 9812 return -host_to_target_errno(errno);
95c09828
RH		 9813 }
9814#ifdef TARGET_ALPHA
9815 /* Return value is the unbiased priority. Signal no error. */
9816 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
9817#else
9818 /* Return value is a biased priority to avoid negative numbers. */
9819 ret = 20 - ret;
9820#endif
72eb7ea8 9821 return ret;
31e31b8a 9822 case TARGET_NR_setpriority:
72eb7ea8 9823 return get_errno(setpriority(arg1, arg2, arg3));
4f7f8924 9824#ifdef TARGET_NR_statfs
31e31b8a 9825 case TARGET_NR_statfs:
2852aafd
RH		 9826 if (!(p = lock_user_string(arg1))) {
9827 return -TARGET_EFAULT;
9828 }
53a5960a
PB		 9829 ret = get_errno(statfs(path(p), &stfs));
9830 unlock_user(p, arg1, 0);
31e31b8a
FB		 9831 convert_statfs:
9832 if (!is_error(ret)) {
53a5960a 9833 struct target_statfs *target_stfs;
3b46e624 9834
579a97f7 9835 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
2852aafd 9836 return -TARGET_EFAULT;
579a97f7
FB		 9837 __put_user(stfs.f_type, &target_stfs->f_type);
9838 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
9839 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
9840 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
9841 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
9842 __put_user(stfs.f_files, &target_stfs->f_files);
9843 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
9844 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
9845 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
9846 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376 9847 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
d4247ec2
SL		 9848#ifdef _STATFS_F_FLAGS
9849 __put_user(stfs.f_flags, &target_stfs->f_flags);
9850#else
9851 __put_user(0, &target_stfs->f_flags);
9852#endif
229d3376 9853 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 9854 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a 9855 }
72eb7ea8 9856 return ret;
4f7f8924
AR		 9857#endif
9858#ifdef TARGET_NR_fstatfs
31e31b8a 9859 case TARGET_NR_fstatfs:
56c8f68f 9860 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 9861 goto convert_statfs;
4f7f8924 9862#endif
56c8f68f
FB		 9863#ifdef TARGET_NR_statfs64
9864 case TARGET_NR_statfs64:
2852aafd
RH		 9865 if (!(p = lock_user_string(arg1))) {
9866 return -TARGET_EFAULT;
9867 }
53a5960a
PB		 9868 ret = get_errno(statfs(path(p), &stfs));
9869 unlock_user(p, arg1, 0);
56c8f68f
FB		 9870 convert_statfs64:
9871 if (!is_error(ret)) {
53a5960a 9872 struct target_statfs64 *target_stfs;
3b46e624 9873
579a97f7 9874 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
2852aafd 9875 return -TARGET_EFAULT;
579a97f7
FB		 9876 __put_user(stfs.f_type, &target_stfs->f_type);
9877 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
9878 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
9879 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
9880 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
9881 __put_user(stfs.f_files, &target_stfs->f_files);
9882 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
9883 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
9884 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
9885 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376 9886 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
b94e2b4e
F		 9887#ifdef _STATFS_F_FLAGS
9888 __put_user(stfs.f_flags, &target_stfs->f_flags);
9889#else
9890 __put_user(0, &target_stfs->f_flags);
9891#endif
229d3376 9892 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 9893 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f 9894 }
72eb7ea8 9895 return ret;
56c8f68f
FB		 9896 case TARGET_NR_fstatfs64:
9897 ret = get_errno(fstatfs(arg1, &stfs));
9898 goto convert_statfs64;
9899#endif
e5febef5 9900#ifdef TARGET_NR_socketcall
31e31b8a 9901 case TARGET_NR_socketcall:
72eb7ea8 9902 return do_socketcall(arg1, arg2);
e5febef5 9903#endif
3532fa74
FB		 9904#ifdef TARGET_NR_accept
9905 case TARGET_NR_accept:
72eb7ea8 9906 return do_accept4(arg1, arg2, arg3, 0);
a94b4987
PM		 9907#endif
9908#ifdef TARGET_NR_accept4
9909 case TARGET_NR_accept4:
72eb7ea8 9910 return do_accept4(arg1, arg2, arg3, arg4);
3532fa74
FB		 9911#endif
9912#ifdef TARGET_NR_bind
9913 case TARGET_NR_bind:
72eb7ea8 9914 return do_bind(arg1, arg2, arg3);
3532fa74
FB		 9915#endif
9916#ifdef TARGET_NR_connect
9917 case TARGET_NR_connect:
72eb7ea8 9918 return do_connect(arg1, arg2, arg3);
3532fa74
FB		 9919#endif
9920#ifdef TARGET_NR_getpeername
9921 case TARGET_NR_getpeername:
72eb7ea8 9922 return do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 9923#endif
9924#ifdef TARGET_NR_getsockname
9925 case TARGET_NR_getsockname:
72eb7ea8 9926 return do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 9927#endif
9928#ifdef TARGET_NR_getsockopt
9929 case TARGET_NR_getsockopt:
72eb7ea8 9930 return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3532fa74
FB		 9931#endif
9932#ifdef TARGET_NR_listen
9933 case TARGET_NR_listen:
72eb7ea8 9934 return get_errno(listen(arg1, arg2));
3532fa74
FB		 9935#endif
9936#ifdef TARGET_NR_recv
9937 case TARGET_NR_recv:
72eb7ea8 9938 return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 9939#endif
9940#ifdef TARGET_NR_recvfrom
9941 case TARGET_NR_recvfrom:
72eb7ea8 9942 return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 9943#endif
9944#ifdef TARGET_NR_recvmsg
9945 case TARGET_NR_recvmsg:
72eb7ea8 9946 return do_sendrecvmsg(arg1, arg2, arg3, 0);
3532fa74
FB		 9947#endif
9948#ifdef TARGET_NR_send
9949 case TARGET_NR_send:
72eb7ea8 9950 return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 9951#endif
9952#ifdef TARGET_NR_sendmsg
9953 case TARGET_NR_sendmsg:
72eb7ea8 9954 return do_sendrecvmsg(arg1, arg2, arg3, 1);
3532fa74 9955#endif
f19e00d7
AG		 9956#ifdef TARGET_NR_sendmmsg
9957 case TARGET_NR_sendmmsg:
72eb7ea8 9958 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
859e8a89
AF		 9959#endif
9960#ifdef TARGET_NR_recvmmsg
f19e00d7 9961 case TARGET_NR_recvmmsg:
72eb7ea8 9962 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
f19e00d7 9963#endif
3532fa74
FB		 9964#ifdef TARGET_NR_sendto
9965 case TARGET_NR_sendto:
72eb7ea8 9966 return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 9967#endif
9968#ifdef TARGET_NR_shutdown
9969 case TARGET_NR_shutdown:
72eb7ea8 9970 return get_errno(shutdown(arg1, arg2));
3532fa74 9971#endif
f894efd1
LV		 9972#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
9973 case TARGET_NR_getrandom:
9974 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
9975 if (!p) {
2852aafd 9976 return -TARGET_EFAULT;
f894efd1
LV		 9977 }
9978 ret = get_errno(getrandom(p, arg2, arg3));
9979 unlock_user(p, arg1, ret);
72eb7ea8 9980 return ret;
f894efd1 9981#endif
3532fa74
FB		 9982#ifdef TARGET_NR_socket
9983 case TARGET_NR_socket:
72eb7ea8 9984 return do_socket(arg1, arg2, arg3);
3532fa74
FB		 9985#endif
9986#ifdef TARGET_NR_socketpair
9987 case TARGET_NR_socketpair:
72eb7ea8 9988 return do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 9989#endif
9990#ifdef TARGET_NR_setsockopt
9991 case TARGET_NR_setsockopt:
72eb7ea8 9992 return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3532fa74 9993#endif
da2c8ad7 9994#if defined(TARGET_NR_syslog)
31e31b8a 9995 case TARGET_NR_syslog:
da2c8ad7
AM		 9996 {
9997 int len = arg2;
7494b0f9 9998
da2c8ad7
AM		 9999 switch (arg1) {
10000 case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */
10001 case TARGET_SYSLOG_ACTION_OPEN: /* Open log */
10002 case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */
10003 case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */
10004 case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */
10005 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */
10006 case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */
10007 case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */
72eb7ea8 10008 return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
da2c8ad7
AM		 10009 case TARGET_SYSLOG_ACTION_READ: /* Read from log */
10010 case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */
10011 case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */
10012 {
da2c8ad7 10013 if (len < 0) {
259841c1 10014 return -TARGET_EINVAL;
da2c8ad7 10015 }
da2c8ad7 10016 if (len == 0) {
72eb7ea8 10017 return 0;
da2c8ad7
AM		 10018 }
10019 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10020 if (!p) {
259841c1 10021 return -TARGET_EFAULT;
da2c8ad7
AM		 10022 }
10023 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
10024 unlock_user(p, arg2, arg3);
10025 }
72eb7ea8 10026 return ret;
da2c8ad7 10027 default:
72eb7ea8 10028 return -TARGET_EINVAL;
da2c8ad7
AM		 10029 }
10030 }
10031 break;
10032#endif
31e31b8a 10033 case TARGET_NR_setitimer:
66fb9763 10034 {
66fb9763
FB		 10035 struct itimerval value, ovalue, *pvalue;
10036
53a5960a 10037 if (arg2) {
66fb9763 10038 pvalue = &value;
788f5ec4
TS		 10039 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
10040 || copy_from_user_timeval(&pvalue->it_value,
10041 arg2 + sizeof(struct target_timeval)))
2852aafd 10042 return -TARGET_EFAULT;
66fb9763
FB		 10043 } else {
10044 pvalue = NULL;
10045 }
10046 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 10047 if (!is_error(ret) && arg3) {
788f5ec4
TS		 10048 if (copy_to_user_timeval(arg3,
10049 &ovalue.it_interval)
10050 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
10051 &ovalue.it_value))
2852aafd 10052 return -TARGET_EFAULT;
66fb9763
FB		 10053 }
10054 }
72eb7ea8 10055 return ret;
31e31b8a 10056 case TARGET_NR_getitimer:
66fb9763 10057 {
66fb9763 10058 struct itimerval value;
3b46e624 10059
66fb9763 10060 ret = get_errno(getitimer(arg1, &value));
53a5960a 10061 if (!is_error(ret) && arg2) {
788f5ec4
TS		 10062 if (copy_to_user_timeval(arg2,
10063 &value.it_interval)
10064 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
10065 &value.it_value))
2852aafd 10066 return -TARGET_EFAULT;
66fb9763
FB		 10067 }
10068 }
72eb7ea8 10069 return ret;
704eff6c 10070#ifdef TARGET_NR_stat
31e31b8a 10071 case TARGET_NR_stat:
2852aafd
RH		 10072 if (!(p = lock_user_string(arg1))) {
10073 return -TARGET_EFAULT;
10074 }
53a5960a
PB		 10075 ret = get_errno(stat(path(p), &st));
10076 unlock_user(p, arg1, 0);
31e31b8a 10077 goto do_stat;
704eff6c
CG		 10078#endif
10079#ifdef TARGET_NR_lstat
31e31b8a 10080 case TARGET_NR_lstat:
2852aafd
RH		 10081 if (!(p = lock_user_string(arg1))) {
10082 return -TARGET_EFAULT;
10083 }
53a5960a
PB		 10084 ret = get_errno(lstat(path(p), &st));
10085 unlock_user(p, arg1, 0);
31e31b8a 10086 goto do_stat;
704eff6c 10087#endif
4f7f8924 10088#ifdef TARGET_NR_fstat
31e31b8a
FB		 10089 case TARGET_NR_fstat:
10090 {
10091 ret = get_errno(fstat(arg1, &st));
704eff6c 10092#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
31e31b8a 10093 do_stat:
704eff6c 10094#endif
31e31b8a 10095 if (!is_error(ret)) {
53a5960a 10096 struct target_stat *target_st;
e3584658 10097
579a97f7 10098 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
2852aafd 10099 return -TARGET_EFAULT;
12727917 10100 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 10101 __put_user(st.st_dev, &target_st->st_dev);
10102 __put_user(st.st_ino, &target_st->st_ino);
10103 __put_user(st.st_mode, &target_st->st_mode);
10104 __put_user(st.st_uid, &target_st->st_uid);
10105 __put_user(st.st_gid, &target_st->st_gid);
10106 __put_user(st.st_nlink, &target_st->st_nlink);
10107 __put_user(st.st_rdev, &target_st->st_rdev);
10108 __put_user(st.st_size, &target_st->st_size);
10109 __put_user(st.st_blksize, &target_st->st_blksize);
10110 __put_user(st.st_blocks, &target_st->st_blocks);
10111 __put_user(st.st_atime, &target_st->target_st_atime);
10112 __put_user(st.st_mtime, &target_st->target_st_mtime);
10113 __put_user(st.st_ctime, &target_st->target_st_ctime);
5f992db6
CYT		 10114#if (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) && \
10115 defined(TARGET_STAT_HAVE_NSEC)
10116 __put_user(st.st_atim.tv_nsec,
10117 &target_st->target_st_atime_nsec);
10118 __put_user(st.st_mtim.tv_nsec,
10119 &target_st->target_st_mtime_nsec);
10120 __put_user(st.st_ctim.tv_nsec,
10121 &target_st->target_st_ctime_nsec);
10122#endif
53a5960a 10123 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 10124 }
10125 }
72eb7ea8 10126 return ret;
ebc05488 10127#endif
31e31b8a 10128 case TARGET_NR_vhangup:
72eb7ea8 10129 return get_errno(vhangup());
42ad6ae9
FB		 10130#ifdef TARGET_NR_syscall
10131 case TARGET_NR_syscall:
72eb7ea8
RH		 10132 return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
10133 arg6, arg7, arg8, 0);
ebc05488 10134#endif
859e8a89 10135#if defined(TARGET_NR_wait4)
31e31b8a
FB		 10136 case TARGET_NR_wait4:
10137 {
10138 int status;
992f48a0 10139 abi_long status_ptr = arg2;
31e31b8a 10140 struct rusage rusage, *rusage_ptr;
992f48a0 10141 abi_ulong target_rusage = arg4;
a39fb273 10142 abi_long rusage_err;
31e31b8a
FB		 10143 if (target_rusage)
10144 rusage_ptr = &rusage;
10145 else
10146 rusage_ptr = NULL;
4af80a37 10147 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
31e31b8a 10148 if (!is_error(ret)) {
5379557b 10149 if (status_ptr && ret) {
1d9d8b55 10150 status = host_to_target_waitstatus(status);
2f619698 10151 if (put_user_s32(status, status_ptr))
2852aafd 10152 return -TARGET_EFAULT;
31e31b8a 10153 }
a39fb273
PJ		 10154 if (target_rusage) {
10155 rusage_err = host_to_target_rusage(target_rusage, &rusage);
10156 if (rusage_err) {
10157 ret = rusage_err;
10158 }
10159 }
31e31b8a
FB		 10160 }
10161 }
72eb7ea8 10162 return ret;
859e8a89 10163#endif
e5febef5 10164#ifdef TARGET_NR_swapoff
31e31b8a 10165 case TARGET_NR_swapoff:
579a97f7 10166 if (!(p = lock_user_string(arg1)))
2852aafd 10167 return -TARGET_EFAULT;
53a5960a
PB		 10168 ret = get_errno(swapoff(p));
10169 unlock_user(p, arg1, 0);
72eb7ea8 10170 return ret;
e5febef5 10171#endif
31e31b8a 10172 case TARGET_NR_sysinfo:
a5448a7d 10173 {
53a5960a 10174 struct target_sysinfo *target_value;
a5448a7d
FB		 10175 struct sysinfo value;
10176 ret = get_errno(sysinfo(&value));
53a5960a 10177 if (!is_error(ret) && arg1)
a5448a7d 10178 {
579a97f7 10179 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
2852aafd 10180 return -TARGET_EFAULT;
a5448a7d
FB		 10181 __put_user(value.uptime, &target_value->uptime);
10182 __put_user(value.loads[0], &target_value->loads[0]);
10183 __put_user(value.loads[1], &target_value->loads[1]);
10184 __put_user(value.loads[2], &target_value->loads[2]);
10185 __put_user(value.totalram, &target_value->totalram);
10186 __put_user(value.freeram, &target_value->freeram);
10187 __put_user(value.sharedram, &target_value->sharedram);
10188 __put_user(value.bufferram, &target_value->bufferram);
10189 __put_user(value.totalswap, &target_value->totalswap);
10190 __put_user(value.freeswap, &target_value->freeswap);
10191 __put_user(value.procs, &target_value->procs);
10192 __put_user(value.totalhigh, &target_value->totalhigh);
10193 __put_user(value.freehigh, &target_value->freehigh);
10194 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 10195 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 10196 }
10197 }
72eb7ea8 10198 return ret;
e5febef5 10199#ifdef TARGET_NR_ipc
31e31b8a 10200 case TARGET_NR_ipc:
72eb7ea8 10201 return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
e5febef5 10202#endif
e5289087
AJ		 10203#ifdef TARGET_NR_semget
10204 case TARGET_NR_semget:
72eb7ea8 10205 return get_errno(semget(arg1, arg2, arg3));
e5289087
AJ		 10206#endif
10207#ifdef TARGET_NR_semop
10208 case TARGET_NR_semop:
cac46eb0 10209 return do_semtimedop(arg1, arg2, arg3, 0, false);
d8c08b1e
MK		 10210#endif
10211#ifdef TARGET_NR_semtimedop
10212 case TARGET_NR_semtimedop:
cac46eb0
FB		 10213 return do_semtimedop(arg1, arg2, arg3, arg4, false);
10214#endif
10215#ifdef TARGET_NR_semtimedop_time64
10216 case TARGET_NR_semtimedop_time64:
10217 return do_semtimedop(arg1, arg2, arg3, arg4, true);
e5289087
AJ		 10218#endif
10219#ifdef TARGET_NR_semctl
10220 case TARGET_NR_semctl:
72eb7ea8 10221 return do_semctl(arg1, arg2, arg3, arg4);
e5289087 10222#endif
eeb438c1
AJ		 10223#ifdef TARGET_NR_msgctl
10224 case TARGET_NR_msgctl:
72eb7ea8 10225 return do_msgctl(arg1, arg2, arg3);
eeb438c1
AJ		 10226#endif
10227#ifdef TARGET_NR_msgget
10228 case TARGET_NR_msgget:
72eb7ea8 10229 return get_errno(msgget(arg1, arg2));
eeb438c1
AJ		 10230#endif
10231#ifdef TARGET_NR_msgrcv
10232 case TARGET_NR_msgrcv:
72eb7ea8 10233 return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
eeb438c1
AJ		 10234#endif
10235#ifdef TARGET_NR_msgsnd
10236 case TARGET_NR_msgsnd:
72eb7ea8 10237 return do_msgsnd(arg1, arg2, arg3, arg4);
88a8c984
RV		 10238#endif
10239#ifdef TARGET_NR_shmget
10240 case TARGET_NR_shmget:
72eb7ea8 10241 return get_errno(shmget(arg1, arg2, arg3));
88a8c984
RV		 10242#endif
10243#ifdef TARGET_NR_shmctl
10244 case TARGET_NR_shmctl:
72eb7ea8 10245 return do_shmctl(arg1, arg2, arg3);
88a8c984
RV		 10246#endif
10247#ifdef TARGET_NR_shmat
10248 case TARGET_NR_shmat:
72eb7ea8 10249 return do_shmat(cpu_env, arg1, arg2, arg3);
88a8c984
RV		 10250#endif
10251#ifdef TARGET_NR_shmdt
10252 case TARGET_NR_shmdt:
72eb7ea8 10253 return do_shmdt(arg1);
eeb438c1 10254#endif
31e31b8a 10255 case TARGET_NR_fsync:
72eb7ea8 10256 return get_errno(fsync(arg1));
31e31b8a 10257 case TARGET_NR_clone:
4ce6243d
PM		 10258 /* Linux manages to have three different orderings for its
10259 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
10260 * match the kernel's CONFIG_CLONE_* settings.
10261 * Microblaze is further special in that it uses a sixth
10262 * implicit argument to clone for the TLS pointer.
10263 */
10264#if defined(TARGET_MICROBLAZE)
a5b3bdcb 10265 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 10266#elif defined(TARGET_CLONE_BACKWARDS)
10267 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
10268#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 10269 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 10270#else
4ce6243d 10271 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 10272#endif
72eb7ea8 10273 return ret;
ec86b0fb
FB		 10274#ifdef __NR_exit_group
10275 /* new thread calls */
10276 case TARGET_NR_exit_group:
708b6a64 10277 preexit_cleanup(cpu_env, arg1);
72eb7ea8 10278 return get_errno(exit_group(arg1));
ec86b0fb 10279#endif
31e31b8a 10280 case TARGET_NR_setdomainname:
579a97f7 10281 if (!(p = lock_user_string(arg1)))
2852aafd 10282 return -TARGET_EFAULT;
53a5960a
PB		 10283 ret = get_errno(setdomainname(p, arg2));
10284 unlock_user(p, arg1, 0);
72eb7ea8 10285 return ret;
31e31b8a
FB		 10286 case TARGET_NR_uname:
10287 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 10288 {
10289 struct new_utsname * buf;
3b46e624 10290
579a97f7 10291 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
2852aafd 10292 return -TARGET_EFAULT;
29e619b1
FB		 10293 ret = get_errno(sys_uname(buf));
10294 if (!is_error(ret)) {
332c9781 10295 /* Overwrite the native machine name with whatever is being
29e619b1 10296 emulated. */
871f95c6
PMD		 10297 g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
10298 sizeof(buf->machine));
c5937220 10299 /* Allow the user to override the reported release. */
332c9781
PM		 10300 if (qemu_uname_release && *qemu_uname_release) {
10301 g_strlcpy(buf->release, qemu_uname_release,
10302 sizeof(buf->release));
10303 }
29e619b1 10304 }
53a5960a 10305 unlock_user_struct(buf, arg1, 1);
29e619b1 10306 }
72eb7ea8 10307 return ret;
6dbad63e 10308#ifdef TARGET_I386
31e31b8a 10309 case TARGET_NR_modify_ldt:
72eb7ea8 10310 return do_modify_ldt(cpu_env, arg1, arg2, arg3);
84409ddb 10311#if !defined(TARGET_X86_64)
5cd4393b 10312 case TARGET_NR_vm86:
72eb7ea8 10313 return do_vm86(cpu_env, arg1, arg2);
84409ddb 10314#endif
6dbad63e 10315#endif
859e8a89 10316#if defined(TARGET_NR_adjtimex)
31e31b8a 10317 case TARGET_NR_adjtimex:
19f59bce
AM		 10318 {
10319 struct timex host_buf;
10320
10321 if (target_to_host_timex(&host_buf, arg1) != 0) {
2852aafd 10322 return -TARGET_EFAULT;
19f59bce
AM		 10323 }
10324 ret = get_errno(adjtimex(&host_buf));
10325 if (!is_error(ret)) {
10326 if (host_to_target_timex(arg1, &host_buf) != 0) {
2852aafd 10327 return -TARGET_EFAULT;
19f59bce
AM		 10328 }
10329 }
10330 }
72eb7ea8 10331 return ret;
859e8a89 10332#endif
38860a03
AM		 10333#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
10334 case TARGET_NR_clock_adjtime:
10335 {
10336 struct timex htx, *phtx = &htx;
10337
10338 if (target_to_host_timex(phtx, arg2) != 0) {
2852aafd 10339 return -TARGET_EFAULT;
38860a03
AM		 10340 }
10341 ret = get_errno(clock_adjtime(arg1, phtx));
10342 if (!is_error(ret) && phtx) {
10343 if (host_to_target_timex(arg2, phtx) != 0) {
2852aafd 10344 return -TARGET_EFAULT;
38860a03
AM		 10345 }
10346 }
10347 }
72eb7ea8 10348 return ret;
6ac03b2c
FB		 10349#endif
10350#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
10351 case TARGET_NR_clock_adjtime64:
10352 {
10353 struct timex htx;
10354
10355 if (target_to_host_timex64(&htx, arg2) != 0) {
10356 return -TARGET_EFAULT;
10357 }
10358 ret = get_errno(clock_adjtime(arg1, &htx));
10359 if (!is_error(ret) && host_to_target_timex64(arg2, &htx)) {
10360 return -TARGET_EFAULT;
10361 }
10362 }
10363 return ret;
38860a03 10364#endif
31e31b8a 10365 case TARGET_NR_getpgid:
72eb7ea8 10366 return get_errno(getpgid(arg1));
31e31b8a 10367 case TARGET_NR_fchdir:
72eb7ea8 10368 return get_errno(fchdir(arg1));
31e31b8a 10369 case TARGET_NR_personality:
72eb7ea8 10370 return get_errno(personality(arg1));
7a3148a9 10371#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 10372 case TARGET_NR__llseek:
10373 {
0c1592d9 10374 int64_t res;
d35b261c 10375#if !defined(__NR_llseek)
9fea273c 10376 res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
0c1592d9
PM		 10377 if (res == -1) {
10378 ret = get_errno(res);
10379 } else {
10380 ret = 0;
10381 }
4f2ac237 10382#else
31e31b8a 10383 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 10384#endif
0c1592d9 10385 if ((ret == 0) && put_user_s64(res, arg4)) {
2852aafd 10386 return -TARGET_EFAULT;
0c1592d9 10387 }
31e31b8a 10388 }
72eb7ea8 10389 return ret;
7a3148a9 10390#endif
704eff6c 10391#ifdef TARGET_NR_getdents
31e31b8a 10392 case TARGET_NR_getdents:
2b3f64cb 10393#ifdef EMULATE_GETDENTS_WITH_GETDENTS
d83c8733 10394#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 10395 {
53a5960a 10396 struct target_dirent *target_dirp;
6556a833 10397 struct linux_dirent *dirp;
992f48a0 10398 abi_long count = arg3;
4add45b4 10399
0e173b24
HK		 10400 dirp = g_try_malloc(count);
10401 if (!dirp) {
259841c1 10402 return -TARGET_ENOMEM;
0da46a6e 10403 }
3b46e624 10404
4add45b4
FB		 10405 ret = get_errno(sys_getdents(arg1, dirp, count));
10406 if (!is_error(ret)) {
6556a833 10407 struct linux_dirent *de;
4add45b4
FB		 10408 struct target_dirent *tde;
10409 int len = ret;
10410 int reclen, treclen;
10411 int count1, tnamelen;
10412
10413 count1 = 0;
10414 de = dirp;
579a97f7 10415 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 10416 return -TARGET_EFAULT;
4add45b4
FB		 10417 tde = target_dirp;
10418 while (len > 0) {
10419 reclen = de->d_reclen;
333858b7
DL		 10420 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
10421 assert(tnamelen >= 0);
10422 treclen = tnamelen + offsetof(struct target_dirent, d_name);
10423 assert(count1 + treclen <= count);
4add45b4 10424 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 10425 tde->d_ino = tswapal(de->d_ino);
10426 tde->d_off = tswapal(de->d_off);
333858b7 10427 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 10428 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 10429 len -= reclen;
1c5bf3bf 10430 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 10431 count1 += treclen;
10432 }
10433 ret = count1;
579a97f7 10434 unlock_user(target_dirp, arg2, ret);
4add45b4 10435 }
0e173b24 10436 g_free(dirp);
4add45b4
FB		 10437 }
10438#else
31e31b8a 10439 {
6556a833 10440 struct linux_dirent *dirp;
992f48a0 10441 abi_long count = arg3;
dab2ed99 10442
579a97f7 10443 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 10444 return -TARGET_EFAULT;
72f03900 10445 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 10446 if (!is_error(ret)) {
6556a833 10447 struct linux_dirent *de;
31e31b8a
FB		 10448 int len = ret;
10449 int reclen;
10450 de = dirp;
10451 while (len > 0) {
8083a3e5 10452 reclen = de->d_reclen;
31e31b8a
FB		 10453 if (reclen > len)
10454 break;
8083a3e5 10455 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 10456 tswapls(&de->d_ino);
10457 tswapls(&de->d_off);
6556a833 10458 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 10459 len -= reclen;
10460 }
10461 }
53a5960a 10462 unlock_user(dirp, arg2, ret);
3307e236
PM		 10463 }
10464#endif
10465#else
10466 /* Implement getdents in terms of getdents64 */
10467 {
10468 struct linux_dirent64 *dirp;
10469 abi_long count = arg3;
10470
10471 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
10472 if (!dirp) {
2852aafd 10473 return -TARGET_EFAULT;
3307e236
PM		 10474 }
10475 ret = get_errno(sys_getdents64(arg1, dirp, count));
10476 if (!is_error(ret)) {
10477 /* Convert the dirent64 structs to target dirent. We do this
10478 * in-place, since we can guarantee that a target_dirent is no
10479 * larger than a dirent64; however this means we have to be
10480 * careful to read everything before writing in the new format.
10481 */
10482 struct linux_dirent64 *de;
10483 struct target_dirent *tde;
10484 int len = ret;
10485 int tlen = 0;
10486
10487 de = dirp;
10488 tde = (struct target_dirent *)dirp;
10489 while (len > 0) {
10490 int namelen, treclen;
10491 int reclen = de->d_reclen;
10492 uint64_t ino = de->d_ino;
10493 int64_t off = de->d_off;
10494 uint8_t type = de->d_type;
10495
10496 namelen = strlen(de->d_name);
10497 treclen = offsetof(struct target_dirent, d_name)
10498 + namelen + 2;
10499 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
10500
10501 memmove(tde->d_name, de->d_name, namelen + 1);
10502 tde->d_ino = tswapal(ino);
10503 tde->d_off = tswapal(off);
10504 tde->d_reclen = tswap16(treclen);
10505 /* The target_dirent type is in what was formerly a padding
10506 * byte at the end of the structure:
10507 */
10508 *(((char *)tde) + treclen - 1) = type;
10509
10510 de = (struct linux_dirent64 *)((char *)de + reclen);
10511 tde = (struct target_dirent *)((char *)tde + treclen);
10512 len -= reclen;
10513 tlen += treclen;
10514 }
10515 ret = tlen;
10516 }
10517 unlock_user(dirp, arg2, ret);
31e31b8a 10518 }
4add45b4 10519#endif
72eb7ea8 10520 return ret;
704eff6c 10521#endif /* TARGET_NR_getdents */
3ae43202 10522#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 10523 case TARGET_NR_getdents64:
10524 {
6556a833 10525 struct linux_dirent64 *dirp;
992f48a0 10526 abi_long count = arg3;
579a97f7 10527 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 10528 return -TARGET_EFAULT;
dab2ed99
FB		 10529 ret = get_errno(sys_getdents64(arg1, dirp, count));
10530 if (!is_error(ret)) {
6556a833 10531 struct linux_dirent64 *de;
dab2ed99
FB		 10532 int len = ret;
10533 int reclen;
10534 de = dirp;
10535 while (len > 0) {
8083a3e5 10536 reclen = de->d_reclen;
dab2ed99
FB		 10537 if (reclen > len)
10538 break;
8083a3e5 10539 de->d_reclen = tswap16(reclen);
8582a53a
FB		 10540 tswap64s((uint64_t *)&de->d_ino);
10541 tswap64s((uint64_t *)&de->d_off);
6556a833 10542 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 10543 len -= reclen;
10544 }
10545 }
53a5960a 10546 unlock_user(dirp, arg2, ret);
dab2ed99 10547 }
72eb7ea8 10548 return ret;
a541f297 10549#endif /* TARGET_NR_getdents64 */
9468a5d4 10550#if defined(TARGET_NR__newselect)
31e31b8a 10551 case TARGET_NR__newselect:
72eb7ea8 10552 return do_select(arg1, arg2, arg3, arg4, arg5);
e5febef5 10553#endif
e5ce9688 10554#ifdef TARGET_NR_poll
9de5e440 10555 case TARGET_NR_poll:
e5ce9688
FB		 10556 return do_ppoll(arg1, arg2, arg3, arg4, arg5, false, false);
10557#endif
10558#ifdef TARGET_NR_ppoll
d8035d4c 10559 case TARGET_NR_ppoll:
e5ce9688
FB		 10560 return do_ppoll(arg1, arg2, arg3, arg4, arg5, true, false);
10561#endif
10562#ifdef TARGET_NR_ppoll_time64
10563 case TARGET_NR_ppoll_time64:
10564 return do_ppoll(arg1, arg2, arg3, arg4, arg5, true, true);
e5febef5 10565#endif
31e31b8a 10566 case TARGET_NR_flock:
9de5e440
FB		 10567 /* NOTE: the flock constant seems to be the same for every
10568 Linux platform */
72eb7ea8 10569 return get_errno(safe_flock(arg1, arg2));
31e31b8a
FB		 10570 case TARGET_NR_readv:
10571 {
f287b2c2
RH		 10572 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
10573 if (vec != NULL) {
918c03ed 10574 ret = get_errno(safe_readv(arg1, vec, arg3));
f287b2c2
RH		 10575 unlock_iovec(vec, arg2, arg3, 1);
10576 } else {
10577 ret = -host_to_target_errno(errno);
10578 }
31e31b8a 10579 }
72eb7ea8 10580 return ret;
31e31b8a
FB		 10581 case TARGET_NR_writev:
10582 {
f287b2c2
RH		 10583 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
10584 if (vec != NULL) {
918c03ed 10585 ret = get_errno(safe_writev(arg1, vec, arg3));
f287b2c2
RH		 10586 unlock_iovec(vec, arg2, arg3, 0);
10587 } else {
10588 ret = -host_to_target_errno(errno);
10589 }
31e31b8a 10590 }
72eb7ea8 10591 return ret;
0f26386c
DJ		 10592#if defined(TARGET_NR_preadv)
10593 case TARGET_NR_preadv:
10594 {
10595 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
10596 if (vec != NULL) {
9ac22517
MF		 10597 unsigned long low, high;
10598
10599 target_to_host_low_high(arg4, arg5, &low, &high);
10600 ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
0f26386c
DJ		 10601 unlock_iovec(vec, arg2, arg3, 1);
10602 } else {
10603 ret = -host_to_target_errno(errno);
f8d00fba
DJ		 10604 }
10605 }
72eb7ea8 10606 return ret;
f8d00fba
DJ		 10607#endif
10608#if defined(TARGET_NR_pwritev)
10609 case TARGET_NR_pwritev:
10610 {
10611 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
10612 if (vec != NULL) {
9ac22517
MF		 10613 unsigned long low, high;
10614
10615 target_to_host_low_high(arg4, arg5, &low, &high);
10616 ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
f8d00fba
DJ		 10617 unlock_iovec(vec, arg2, arg3, 0);
10618 } else {
10619 ret = -host_to_target_errno(errno);
0f26386c
DJ		 10620 }
10621 }
72eb7ea8 10622 return ret;
0f26386c 10623#endif
31e31b8a 10624 case TARGET_NR_getsid:
72eb7ea8 10625 return get_errno(getsid(arg1));
7a3148a9 10626#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 10627 case TARGET_NR_fdatasync:
72eb7ea8 10628 return get_errno(fdatasync(arg1));
704eff6c 10629#endif
737de1d1
MF		 10630 case TARGET_NR_sched_getaffinity:
10631 {
10632 unsigned int mask_size;
10633 unsigned long *mask;
10634
10635 /*
10636 * sched_getaffinity needs multiples of ulong, so need to take
10637 * care of mismatches between target ulong and host ulong sizes.
10638 */
10639 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 10640 return -TARGET_EINVAL;
737de1d1
MF		 10641 }
10642 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
10643
10644 mask = alloca(mask_size);
2e0a8713 10645 memset(mask, 0, mask_size);
737de1d1
MF		 10646 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
10647
10648 if (!is_error(ret)) {
be3bd286
PM		 10649 if (ret > arg2) {
10650 /* More data returned than the caller's buffer will fit.
10651 * This only happens if sizeof(abi_long) < sizeof(long)
10652 * and the caller passed us a buffer holding an odd number
10653 * of abi_longs. If the host kernel is actually using the
10654 * extra 4 bytes then fail EINVAL; otherwise we can just
10655 * ignore them and only copy the interesting part.
10656 */
10657 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
10658 if (numcpus > arg2 * 8) {
72eb7ea8 10659 return -TARGET_EINVAL;
be3bd286
PM		 10660 }
10661 ret = arg2;
10662 }
10663
5fdefcf8 10664 if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
2852aafd 10665 return -TARGET_EFAULT;
5fdefcf8 10666 }
737de1d1
MF		 10667 }
10668 }
72eb7ea8 10669 return ret;
737de1d1
MF		 10670 case TARGET_NR_sched_setaffinity:
10671 {
10672 unsigned int mask_size;
10673 unsigned long *mask;
10674
10675 /*
10676 * sched_setaffinity needs multiples of ulong, so need to take
10677 * care of mismatches between target ulong and host ulong sizes.
10678 */
10679 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 10680 return -TARGET_EINVAL;
737de1d1
MF		 10681 }
10682 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
737de1d1 10683 mask = alloca(mask_size);
2e0a8713
ST		 10684
10685 ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
10686 if (ret) {
72eb7ea8 10687 return ret;
737de1d1 10688 }
737de1d1 10689
72eb7ea8 10690 return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
737de1d1 10691 }
b827c3ed
ST		 10692 case TARGET_NR_getcpu:
10693 {
10694 unsigned cpu, node;
10695 ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
10696 arg2 ? &node : NULL,
10697 NULL));
10698 if (is_error(ret)) {
259841c1 10699 return ret;
b827c3ed
ST		 10700 }
10701 if (arg1 && put_user_u32(cpu, arg1)) {
2852aafd 10702 return -TARGET_EFAULT;
b827c3ed
ST		 10703 }
10704 if (arg2 && put_user_u32(node, arg2)) {
2852aafd 10705 return -TARGET_EFAULT;
b827c3ed
ST		 10706 }
10707 }
72eb7ea8 10708 return ret;
31e31b8a 10709 case TARGET_NR_sched_setparam:
5cd4393b 10710 {
53a5960a 10711 struct sched_param *target_schp;
5cd4393b 10712 struct sched_param schp;
53a5960a 10713
a1d5c5b2
TM		 10714 if (arg2 == 0) {
10715 return -TARGET_EINVAL;
10716 }
579a97f7 10717 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
2852aafd 10718 return -TARGET_EFAULT;
5cd4393b 10719 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 10720 unlock_user_struct(target_schp, arg2, 0);
72eb7ea8 10721 return get_errno(sched_setparam(arg1, &schp));
5cd4393b 10722 }
31e31b8a 10723 case TARGET_NR_sched_getparam:
5cd4393b 10724 {
53a5960a 10725 struct sched_param *target_schp;
5cd4393b 10726 struct sched_param schp;
a1d5c5b2
TM		 10727
10728 if (arg2 == 0) {
10729 return -TARGET_EINVAL;
10730 }
5cd4393b
FB		 10731 ret = get_errno(sched_getparam(arg1, &schp));
10732 if (!is_error(ret)) {
579a97f7 10733 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
2852aafd 10734 return -TARGET_EFAULT;
5cd4393b 10735 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 10736 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 10737 }
10738 }
72eb7ea8 10739 return ret;
31e31b8a 10740 case TARGET_NR_sched_setscheduler:
5cd4393b 10741 {
53a5960a 10742 struct sched_param *target_schp;
5cd4393b 10743 struct sched_param schp;
a1d5c5b2
TM		 10744 if (arg3 == 0) {
10745 return -TARGET_EINVAL;
10746 }
579a97f7 10747 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
2852aafd 10748 return -TARGET_EFAULT;
5cd4393b 10749 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 10750 unlock_user_struct(target_schp, arg3, 0);
72eb7ea8 10751 return get_errno(sched_setscheduler(arg1, arg2, &schp));
5cd4393b 10752 }
31e31b8a 10753 case TARGET_NR_sched_getscheduler:
72eb7ea8 10754 return get_errno(sched_getscheduler(arg1));
31e31b8a 10755 case TARGET_NR_sched_yield:
72eb7ea8 10756 return get_errno(sched_yield());
31e31b8a 10757 case TARGET_NR_sched_get_priority_max:
72eb7ea8 10758 return get_errno(sched_get_priority_max(arg1));
31e31b8a 10759 case TARGET_NR_sched_get_priority_min:
72eb7ea8 10760 return get_errno(sched_get_priority_min(arg1));
859e8a89 10761#ifdef TARGET_NR_sched_rr_get_interval
31e31b8a 10762 case TARGET_NR_sched_rr_get_interval:
5cd4393b 10763 {
5cd4393b
FB		 10764 struct timespec ts;
10765 ret = get_errno(sched_rr_get_interval(arg1, &ts));
10766 if (!is_error(ret)) {
d4290c40 10767 ret = host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 10768 }
10769 }
72eb7ea8 10770 return ret;
859e8a89 10771#endif
ddcbde15
FB		 10772#ifdef TARGET_NR_sched_rr_get_interval_time64
10773 case TARGET_NR_sched_rr_get_interval_time64:
10774 {
10775 struct timespec ts;
10776 ret = get_errno(sched_rr_get_interval(arg1, &ts));
10777 if (!is_error(ret)) {
10778 ret = host_to_target_timespec64(arg2, &ts);
10779 }
10780 }
10781 return ret;
10782#endif
859e8a89 10783#if defined(TARGET_NR_nanosleep)
31e31b8a 10784 case TARGET_NR_nanosleep:
1b6b029e 10785 {
1b6b029e 10786 struct timespec req, rem;
53a5960a 10787 target_to_host_timespec(&req, arg1);
9e518226 10788 ret = get_errno(safe_nanosleep(&req, &rem));
53a5960a
PB		 10789 if (is_error(ret) && arg2) {
10790 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 10791 }
10792 }
72eb7ea8 10793 return ret;
859e8a89 10794#endif
31e31b8a 10795 case TARGET_NR_prctl:
1e6722f8
PM		 10796 switch (arg1) {
10797 case PR_GET_PDEATHSIG:
10798 {
10799 int deathsig;
10800 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
10801 if (!is_error(ret) && arg2
d9a5eba4 10802 && put_user_s32(deathsig, arg2)) {
2852aafd 10803 return -TARGET_EFAULT;
e5574487 10804 }
72eb7ea8 10805 return ret;
1e6722f8 10806 }
db9526b1
PM		 10807#ifdef PR_GET_NAME
10808 case PR_GET_NAME:
10809 {
10810 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
10811 if (!name) {
2852aafd 10812 return -TARGET_EFAULT;
db9526b1
PM		 10813 }
10814 ret = get_errno(prctl(arg1, (unsigned long)name,
10815 arg3, arg4, arg5));
10816 unlock_user(name, arg2, 16);
72eb7ea8 10817 return ret;
db9526b1
PM		 10818 }
10819 case PR_SET_NAME:
10820 {
10821 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
10822 if (!name) {
2852aafd 10823 return -TARGET_EFAULT;
db9526b1
PM		 10824 }
10825 ret = get_errno(prctl(arg1, (unsigned long)name,
10826 arg3, arg4, arg5));
10827 unlock_user(name, arg2, 0);
72eb7ea8 10828 return ret;
db9526b1
PM		 10829 }
10830#endif
5b702ffd
SM		 10831#ifdef TARGET_MIPS
10832 case TARGET_PR_GET_FP_MODE:
64ea3d67
SM		 10833 {
10834 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
10835 ret = 0;
10836 if (env->CP0_Status & (1 << CP0St_FR)) {
10837 ret |= TARGET_PR_FP_MODE_FR;
10838 }
10839 if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
10840 ret |= TARGET_PR_FP_MODE_FRE;
10841 }
10842 return ret;
10843 }
5b702ffd 10844 case TARGET_PR_SET_FP_MODE:
64ea3d67
SM		 10845 {
10846 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
10847 bool old_fr = env->CP0_Status & (1 << CP0St_FR);
6456c510 10848 bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
64ea3d67
SM		 10849 bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
10850 bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
10851
6456c510
SM		 10852 const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
10853 TARGET_PR_FP_MODE_FRE;
10854
10855 /* If nothing to change, return right away, successfully. */
10856 if (old_fr == new_fr && old_fre == new_fre) {
10857 return 0;
10858 }
10859 /* Check the value is valid */
10860 if (arg2 & ~known_bits) {
10861 return -TARGET_EOPNOTSUPP;
10862 }
10863 /* Setting FRE without FR is not supported. */
10864 if (new_fre && !new_fr) {
10865 return -TARGET_EOPNOTSUPP;
10866 }
64ea3d67
SM		 10867 if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
10868 /* FR1 is not supported */
10869 return -TARGET_EOPNOTSUPP;
10870 }
10871 if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
10872 && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
10873 /* cannot set FR=0 */
10874 return -TARGET_EOPNOTSUPP;
10875 }
10876 if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
10877 /* Cannot set FRE=1 */
10878 return -TARGET_EOPNOTSUPP;
10879 }
10880
10881 int i;
10882 fpr_t *fpr = env->active_fpu.fpr;
10883 for (i = 0; i < 32 ; i += 2) {
10884 if (!old_fr && new_fr) {
10885 fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
10886 } else if (old_fr && !new_fr) {
10887 fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
10888 }
10889 }
10890
10891 if (new_fr) {
10892 env->CP0_Status |= (1 << CP0St_FR);
10893 env->hflags |= MIPS_HFLAG_F64;
10894 } else {
10895 env->CP0_Status &= ~(1 << CP0St_FR);
6456c510 10896 env->hflags &= ~MIPS_HFLAG_F64;
64ea3d67
SM		 10897 }
10898 if (new_fre) {
10899 env->CP0_Config5 |= (1 << CP0C5_FRE);
10900 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
10901 env->hflags |= MIPS_HFLAG_FRE;
10902 }
10903 } else {
10904 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
6456c510 10905 env->hflags &= ~MIPS_HFLAG_FRE;
64ea3d67
SM		 10906 }
10907
10908 return 0;
10909 }
5b702ffd 10910#endif /* MIPS */
85fc7167
RH		 10911#ifdef TARGET_AARCH64
10912 case TARGET_PR_SVE_SET_VL:
adf92eab
RH		 10913 /*
10914 * We cannot support either PR_SVE_SET_VL_ONEXEC or
10915 * PR_SVE_VL_INHERIT. Note the kernel definition
10916 * of sve_vl_valid allows for VQ=512, i.e. VL=8192,
10917 * even though the current architectural maximum is VQ=16.
10918 */
85fc7167 10919 ret = -TARGET_EINVAL;
2fc0cc0e 10920 if (cpu_isar_feature(aa64_sve, env_archcpu(cpu_env))
adf92eab 10921 && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
85fc7167 10922 CPUARMState *env = cpu_env;
2fc0cc0e 10923 ARMCPU *cpu = env_archcpu(env);
adf92eab
RH		 10924 uint32_t vq, old_vq;
10925
10926 old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
10927 vq = MAX(arg2 / 16, 1);
10928 vq = MIN(vq, cpu->sve_max_vq);
85fc7167
RH		 10929
10930 if (vq < old_vq) {
10931 aarch64_sve_narrow_vq(env, vq);
10932 }
10933 env->vfp.zcr_el[1] = vq - 1;
a8a79c7a 10934 arm_rebuild_hflags(env);
85fc7167
RH		 10935 ret = vq * 16;
10936 }
72eb7ea8 10937 return ret;
85fc7167
RH		 10938 case TARGET_PR_SVE_GET_VL:
10939 ret = -TARGET_EINVAL;
cd208a1c 10940 {
2fc0cc0e 10941 ARMCPU *cpu = env_archcpu(cpu_env);
cd208a1c
RH		 10942 if (cpu_isar_feature(aa64_sve, cpu)) {
10943 ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
10944 }
85fc7167 10945 }
72eb7ea8 10946 return ret;
bff63fbf
RH		 10947 case TARGET_PR_PAC_RESET_KEYS:
10948 {
10949 CPUARMState *env = cpu_env;
2fc0cc0e 10950 ARMCPU *cpu = env_archcpu(env);
bff63fbf
RH		 10951
10952 if (arg3 || arg4 || arg5) {
10953 return -TARGET_EINVAL;
10954 }
10955 if (cpu_isar_feature(aa64_pauth, cpu)) {
10956 int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY |
10957 TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY |
10958 TARGET_PR_PAC_APGAKEY);
51977e25
RH		 10959 int ret = 0;
10960 Error *err = NULL;
10961
bff63fbf
RH		 10962 if (arg2 == 0) {
10963 arg2 = all;
10964 } else if (arg2 & ~all) {
10965 return -TARGET_EINVAL;
10966 }
10967 if (arg2 & TARGET_PR_PAC_APIAKEY) {
108b3ba8 10968 ret |= qemu_guest_getrandom(&env->keys.apia,
51977e25 10969 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10970 }
10971 if (arg2 & TARGET_PR_PAC_APIBKEY) {
108b3ba8 10972 ret |= qemu_guest_getrandom(&env->keys.apib,
51977e25 10973 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10974 }
10975 if (arg2 & TARGET_PR_PAC_APDAKEY) {
108b3ba8 10976 ret |= qemu_guest_getrandom(&env->keys.apda,
51977e25 10977 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10978 }
10979 if (arg2 & TARGET_PR_PAC_APDBKEY) {
108b3ba8 10980 ret |= qemu_guest_getrandom(&env->keys.apdb,
51977e25 10981 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10982 }
10983 if (arg2 & TARGET_PR_PAC_APGAKEY) {
108b3ba8 10984 ret |= qemu_guest_getrandom(&env->keys.apga,
51977e25
RH		 10985 sizeof(ARMPACKey), &err);
10986 }
10987 if (ret != 0) {
10988 /*
10989 * Some unknown failure in the crypto. The best
10990 * we can do is log it and fail the syscall.
10991 * The real syscall cannot fail this way.
10992 */
10993 qemu_log_mask(LOG_UNIMP,
10994 "PR_PAC_RESET_KEYS: Crypto failure: %s",
10995 error_get_pretty(err));
10996 error_free(err);
10997 return -TARGET_EIO;
bff63fbf
RH		 10998 }
10999 return 0;
11000 }
11001 }
11002 return -TARGET_EINVAL;
0e0c030c
RH		 11003 case TARGET_PR_SET_TAGGED_ADDR_CTRL:
11004 {
11005 abi_ulong valid_mask = TARGET_PR_TAGGED_ADDR_ENABLE;
11006 CPUARMState *env = cpu_env;
bfd0572f
RH		 11007 ARMCPU *cpu = env_archcpu(env);
11008
11009 if (cpu_isar_feature(aa64_mte, cpu)) {
11010 valid_mask |= TARGET_PR_MTE_TCF_MASK;
11011 valid_mask |= TARGET_PR_MTE_TAG_MASK;
11012 }
0e0c030c
RH		 11013
11014 if ((arg2 & ~valid_mask) || arg3 || arg4 || arg5) {
11015 return -TARGET_EINVAL;
11016 }
11017 env->tagged_addr_enable = arg2 & TARGET_PR_TAGGED_ADDR_ENABLE;
bfd0572f
RH		 11018
11019 if (cpu_isar_feature(aa64_mte, cpu)) {
11020 switch (arg2 & TARGET_PR_MTE_TCF_MASK) {
11021 case TARGET_PR_MTE_TCF_NONE:
11022 case TARGET_PR_MTE_TCF_SYNC:
11023 case TARGET_PR_MTE_TCF_ASYNC:
11024 break;
11025 default:
11026 return -EINVAL;
11027 }
11028
11029 /*
11030 * Write PR_MTE_TCF to SCTLR_EL1[TCF0].
11031 * Note that the syscall values are consistent with hw.
11032 */
11033 env->cp15.sctlr_el[1] =
11034 deposit64(env->cp15.sctlr_el[1], 38, 2,
11035 arg2 >> TARGET_PR_MTE_TCF_SHIFT);
11036
11037 /*
11038 * Write PR_MTE_TAG to GCR_EL1[Exclude].
11039 * Note that the syscall uses an include mask,
11040 * and hardware uses an exclude mask -- invert.
11041 */
11042 env->cp15.gcr_el1 =
11043 deposit64(env->cp15.gcr_el1, 0, 16,
11044 ~arg2 >> TARGET_PR_MTE_TAG_SHIFT);
11045 arm_rebuild_hflags(env);
11046 }
0e0c030c
RH		 11047 return 0;
11048 }
11049 case TARGET_PR_GET_TAGGED_ADDR_CTRL:
11050 {
11051 abi_long ret = 0;
11052 CPUARMState *env = cpu_env;
bfd0572f 11053 ARMCPU *cpu = env_archcpu(env);
0e0c030c
RH		 11054
11055 if (arg2 || arg3 || arg4 || arg5) {
11056 return -TARGET_EINVAL;
11057 }
11058 if (env->tagged_addr_enable) {
11059 ret |= TARGET_PR_TAGGED_ADDR_ENABLE;
11060 }
bfd0572f
RH		 11061 if (cpu_isar_feature(aa64_mte, cpu)) {
11062 /* See above. */
11063 ret |= (extract64(env->cp15.sctlr_el[1], 38, 2)
11064 << TARGET_PR_MTE_TCF_SHIFT);
11065 ret = deposit64(ret, TARGET_PR_MTE_TAG_SHIFT, 16,
11066 ~env->cp15.gcr_el1);
11067 }
0e0c030c
RH		 11068 return ret;
11069 }
85fc7167 11070#endif /* AARCH64 */
a8b154a6
JC		 11071 case PR_GET_SECCOMP:
11072 case PR_SET_SECCOMP:
11073 /* Disable seccomp to prevent the target disabling syscalls we
11074 * need. */
72eb7ea8 11075 return -TARGET_EINVAL;
1e6722f8
PM		 11076 default:
11077 /* Most prctl options have no pointer arguments */
72eb7ea8 11078 return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
1e6722f8 11079 }
39b9aae1 11080 break;
d2fd1af7
FB		 11081#ifdef TARGET_NR_arch_prctl
11082 case TARGET_NR_arch_prctl:
72eb7ea8 11083 return do_arch_prctl(cpu_env, arg1, arg2);
d2fd1af7 11084#endif
f2c7ba15
AJ		 11085#ifdef TARGET_NR_pread64
11086 case TARGET_NR_pread64:
8bf8e9df 11087 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 11088 arg4 = arg5;
11089 arg5 = arg6;
11090 }
2bd3f899
PM		 11091 if (arg2 == 0 && arg3 == 0) {
11092 /* Special-case NULL buffer and zero length, which should succeed */
11093 p = 0;
11094 } else {
11095 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
11096 if (!p) {
11097 return -TARGET_EFAULT;
11098 }
11099 }
f2c7ba15
AJ		 11100 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
11101 unlock_user(p, arg2, ret);
72eb7ea8 11102 return ret;
f2c7ba15 11103 case TARGET_NR_pwrite64:
8bf8e9df 11104 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 11105 arg4 = arg5;
11106 arg5 = arg6;
11107 }
2bd3f899
PM		 11108 if (arg2 == 0 && arg3 == 0) {
11109 /* Special-case NULL buffer and zero length, which should succeed */
11110 p = 0;
11111 } else {
11112 p = lock_user(VERIFY_READ, arg2, arg3, 1);
11113 if (!p) {
11114 return -TARGET_EFAULT;
11115 }
11116 }
f2c7ba15
AJ		 11117 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
11118 unlock_user(p, arg2, 0);
72eb7ea8 11119 return ret;
67867308 11120#endif
31e31b8a 11121 case TARGET_NR_getcwd:
579a97f7 11122 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
2852aafd 11123 return -TARGET_EFAULT;
53a5960a
PB		 11124 ret = get_errno(sys_getcwd1(p, arg2));
11125 unlock_user(p, arg1, ret);
72eb7ea8 11126 return ret;
31e31b8a
FB		 11127 case TARGET_NR_capget:
11128 case TARGET_NR_capset:
e0eb210e
PM		 11129 {
11130 struct target_user_cap_header *target_header;
11131 struct target_user_cap_data *target_data = NULL;
11132 struct __user_cap_header_struct header;
11133 struct __user_cap_data_struct data[2];
11134 struct __user_cap_data_struct *dataptr = NULL;
11135 int i, target_datalen;
11136 int data_items = 1;
11137
11138 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
2852aafd 11139 return -TARGET_EFAULT;
e0eb210e
PM		 11140 }
11141 header.version = tswap32(target_header->version);
11142 header.pid = tswap32(target_header->pid);
11143
ec864874 11144 if (header.version != _LINUX_CAPABILITY_VERSION) {
e0eb210e
PM		 11145 /* Version 2 and up takes pointer to two user_data structs */
11146 data_items = 2;
11147 }
11148
11149 target_datalen = sizeof(*target_data) * data_items;
11150
11151 if (arg2) {
11152 if (num == TARGET_NR_capget) {
11153 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
11154 } else {
11155 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
11156 }
11157 if (!target_data) {
11158 unlock_user_struct(target_header, arg1, 0);
2852aafd 11159 return -TARGET_EFAULT;
e0eb210e
PM		 11160 }
11161
11162 if (num == TARGET_NR_capset) {
11163 for (i = 0; i < data_items; i++) {
11164 data[i].effective = tswap32(target_data[i].effective);
11165 data[i].permitted = tswap32(target_data[i].permitted);
11166 data[i].inheritable = tswap32(target_data[i].inheritable);
11167 }
11168 }
11169
11170 dataptr = data;
11171 }
11172
11173 if (num == TARGET_NR_capget) {
11174 ret = get_errno(capget(&header, dataptr));
11175 } else {
11176 ret = get_errno(capset(&header, dataptr));
11177 }
11178
11179 /* The kernel always updates version for both capget and capset */
11180 target_header->version = tswap32(header.version);
11181 unlock_user_struct(target_header, arg1, 1);
11182
11183 if (arg2) {
11184 if (num == TARGET_NR_capget) {
11185 for (i = 0; i < data_items; i++) {
11186 target_data[i].effective = tswap32(data[i].effective);
11187 target_data[i].permitted = tswap32(data[i].permitted);
11188 target_data[i].inheritable = tswap32(data[i].inheritable);
11189 }
11190 unlock_user(target_data, arg2, target_datalen);
11191 } else {
11192 unlock_user(target_data, arg2, 0);
11193 }
11194 }
72eb7ea8 11195 return ret;
e0eb210e 11196 }
31e31b8a 11197 case TARGET_NR_sigaltstack:
72eb7ea8
RH		 11198 return do_sigaltstack(arg1, arg2,
11199 get_sp_from_cpustate((CPUArchState *)cpu_env));
a8fd1aba
PM		 11200
11201#ifdef CONFIG_SENDFILE
4f7f8924 11202#ifdef TARGET_NR_sendfile
a8fd1aba
PM		 11203 case TARGET_NR_sendfile:
11204 {
11205 off_t *offp = NULL;
11206 off_t off;
11207 if (arg3) {
11208 ret = get_user_sal(off, arg3);
11209 if (is_error(ret)) {
72eb7ea8 11210 return ret;
a8fd1aba
PM		 11211 }
11212 offp = &off;
11213 }
11214 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
11215 if (!is_error(ret) && arg3) {
11216 abi_long ret2 = put_user_sal(off, arg3);
11217 if (is_error(ret2)) {
11218 ret = ret2;
11219 }
11220 }
72eb7ea8 11221 return ret;
a8fd1aba 11222 }
4f7f8924 11223#endif
a8fd1aba
PM		 11224#ifdef TARGET_NR_sendfile64
11225 case TARGET_NR_sendfile64:
11226 {
11227 off_t *offp = NULL;
11228 off_t off;
11229 if (arg3) {
11230 ret = get_user_s64(off, arg3);
11231 if (is_error(ret)) {
72eb7ea8 11232 return ret;
a8fd1aba
PM		 11233 }
11234 offp = &off;
11235 }
11236 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
11237 if (!is_error(ret) && arg3) {
11238 abi_long ret2 = put_user_s64(off, arg3);
11239 if (is_error(ret2)) {
11240 ret = ret2;
11241 }
11242 }
72eb7ea8 11243 return ret;
a8fd1aba
PM		 11244 }
11245#endif
ebc05488 11246#endif
048f6b4d 11247#ifdef TARGET_NR_vfork
31e31b8a 11248 case TARGET_NR_vfork:
72eb7ea8
RH		 11249 return get_errno(do_fork(cpu_env,
11250 CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
11251 0, 0, 0, 0));
048f6b4d 11252#endif
ebc05488 11253#ifdef TARGET_NR_ugetrlimit
31e31b8a 11254 case TARGET_NR_ugetrlimit:
728584be
FB		 11255 {
11256 struct rlimit rlim;
e22b7015
WT		 11257 int resource = target_to_host_resource(arg1);
11258 ret = get_errno(getrlimit(resource, &rlim));
728584be 11259 if (!is_error(ret)) {
53a5960a 11260 struct target_rlimit *target_rlim;
579a97f7 11261 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 11262 return -TARGET_EFAULT;
81bbe906
TY		 11263 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
11264 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 11265 unlock_user_struct(target_rlim, arg2, 1);
728584be 11266 }
72eb7ea8 11267 return ret;
728584be 11268 }
ebc05488 11269#endif
a315a145 11270#ifdef TARGET_NR_truncate64
31e31b8a 11271 case TARGET_NR_truncate64:
579a97f7 11272 if (!(p = lock_user_string(arg1)))
2852aafd 11273 return -TARGET_EFAULT;
53a5960a
PB		 11274 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
11275 unlock_user(p, arg1, 0);
72eb7ea8 11276 return ret;
a315a145
FB		 11277#endif
11278#ifdef TARGET_NR_ftruncate64
31e31b8a 11279 case TARGET_NR_ftruncate64:
72eb7ea8 11280 return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
a315a145
FB		 11281#endif
11282#ifdef TARGET_NR_stat64
31e31b8a 11283 case TARGET_NR_stat64:
2852aafd
RH		 11284 if (!(p = lock_user_string(arg1))) {
11285 return -TARGET_EFAULT;
11286 }
53a5960a
PB		 11287 ret = get_errno(stat(path(p), &st));
11288 unlock_user(p, arg1, 0);
6a24a778
AZ		 11289 if (!is_error(ret))
11290 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 11291 return ret;
a315a145
FB		 11292#endif
11293#ifdef TARGET_NR_lstat64
31e31b8a 11294 case TARGET_NR_lstat64:
2852aafd
RH		 11295 if (!(p = lock_user_string(arg1))) {
11296 return -TARGET_EFAULT;
11297 }
53a5960a
PB		 11298 ret = get_errno(lstat(path(p), &st));
11299 unlock_user(p, arg1, 0);
6a24a778
AZ		 11300 if (!is_error(ret))
11301 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 11302 return ret;
a315a145
FB		 11303#endif
11304#ifdef TARGET_NR_fstat64
31e31b8a 11305 case TARGET_NR_fstat64:
6a24a778
AZ		 11306 ret = get_errno(fstat(arg1, &st));
11307 if (!is_error(ret))
11308 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 11309 return ret;
ce4defa0 11310#endif
c0d472b1 11311#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 11312#ifdef TARGET_NR_fstatat64
6a24a778 11313 case TARGET_NR_fstatat64:
9d33b76b
AJ		 11314#endif
11315#ifdef TARGET_NR_newfstatat
11316 case TARGET_NR_newfstatat:
11317#endif
2852aafd
RH		 11318 if (!(p = lock_user_string(arg2))) {
11319 return -TARGET_EFAULT;
11320 }
c0d472b1 11321 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
2852aafd 11322 unlock_user(p, arg2, 0);
6a24a778
AZ		 11323 if (!is_error(ret))
11324 ret = host_to_target_stat64(cpu_env, arg3, &st);
72eb7ea8 11325 return ret;
a315a145 11326#endif
efa92184
AR		 11327#if defined(TARGET_NR_statx)
11328 case TARGET_NR_statx:
11329 {
11330 struct target_statx *target_stx;
11331 int dirfd = arg1;
11332 int flags = arg3;
11333
11334 p = lock_user_string(arg2);
11335 if (p == NULL) {
11336 return -TARGET_EFAULT;
11337 }
11338#if defined(__NR_statx)
11339 {
11340 /*
11341 * It is assumed that struct statx is architecture independent.
11342 */
11343 struct target_statx host_stx;
11344 int mask = arg4;
11345
11346 ret = get_errno(sys_statx(dirfd, p, flags, mask, &host_stx));
11347 if (!is_error(ret)) {
11348 if (host_to_target_statx(&host_stx, arg5) != 0) {
11349 unlock_user(p, arg2, 0);
11350 return -TARGET_EFAULT;
11351 }
11352 }
11353
11354 if (ret != -TARGET_ENOSYS) {
11355 unlock_user(p, arg2, 0);
11356 return ret;
11357 }
11358 }
11359#endif
11360 ret = get_errno(fstatat(dirfd, path(p), &st, flags));
11361 unlock_user(p, arg2, 0);
11362
11363 if (!is_error(ret)) {
11364 if (!lock_user_struct(VERIFY_WRITE, target_stx, arg5, 0)) {
11365 return -TARGET_EFAULT;
11366 }
11367 memset(target_stx, 0, sizeof(*target_stx));
11368 __put_user(major(st.st_dev), &target_stx->stx_dev_major);
11369 __put_user(minor(st.st_dev), &target_stx->stx_dev_minor);
11370 __put_user(st.st_ino, &target_stx->stx_ino);
11371 __put_user(st.st_mode, &target_stx->stx_mode);
11372 __put_user(st.st_uid, &target_stx->stx_uid);
11373 __put_user(st.st_gid, &target_stx->stx_gid);
11374 __put_user(st.st_nlink, &target_stx->stx_nlink);
11375 __put_user(major(st.st_rdev), &target_stx->stx_rdev_major);
11376 __put_user(minor(st.st_rdev), &target_stx->stx_rdev_minor);
11377 __put_user(st.st_size, &target_stx->stx_size);
11378 __put_user(st.st_blksize, &target_stx->stx_blksize);
11379 __put_user(st.st_blocks, &target_stx->stx_blocks);
11380 __put_user(st.st_atime, &target_stx->stx_atime.tv_sec);
11381 __put_user(st.st_mtime, &target_stx->stx_mtime.tv_sec);
11382 __put_user(st.st_ctime, &target_stx->stx_ctime.tv_sec);
11383 unlock_user_struct(target_stx, arg5, 1);
11384 }
11385 }
11386 return ret;
11387#endif
704eff6c 11388#ifdef TARGET_NR_lchown
67867308 11389 case TARGET_NR_lchown:
579a97f7 11390 if (!(p = lock_user_string(arg1)))
2852aafd 11391 return -TARGET_EFAULT;
53a5960a
PB		 11392 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
11393 unlock_user(p, arg1, 0);
72eb7ea8 11394 return ret;
704eff6c 11395#endif
0c866a7e 11396#ifdef TARGET_NR_getuid
67867308 11397 case TARGET_NR_getuid:
72eb7ea8 11398 return get_errno(high2lowuid(getuid()));
0c866a7e
RV		 11399#endif
11400#ifdef TARGET_NR_getgid
67867308 11401 case TARGET_NR_getgid:
72eb7ea8 11402 return get_errno(high2lowgid(getgid()));
0c866a7e
RV		 11403#endif
11404#ifdef TARGET_NR_geteuid
67867308 11405 case TARGET_NR_geteuid:
72eb7ea8 11406 return get_errno(high2lowuid(geteuid()));
0c866a7e
RV		 11407#endif
11408#ifdef TARGET_NR_getegid
67867308 11409 case TARGET_NR_getegid:
72eb7ea8 11410 return get_errno(high2lowgid(getegid()));
0c866a7e 11411#endif
67867308 11412 case TARGET_NR_setreuid:
72eb7ea8 11413 return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
67867308 11414 case TARGET_NR_setregid:
72eb7ea8 11415 return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
67867308
FB		 11416 case TARGET_NR_getgroups:
11417 {
11418 int gidsetsize = arg1;
0c866a7e 11419 target_id *target_grouplist;
67867308
FB		 11420 gid_t *grouplist;
11421 int i;
11422
11423 grouplist = alloca(gidsetsize * sizeof(gid_t));
11424 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 11425 if (gidsetsize == 0)
72eb7ea8 11426 return ret;
67867308 11427 if (!is_error(ret)) {
03903ffc 11428 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7 11429 if (!target_grouplist)
2852aafd 11430 return -TARGET_EFAULT;
a2155fcc 11431 for(i = 0;i < ret; i++)
0c866a7e 11432 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 11433 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 11434 }
11435 }
72eb7ea8 11436 return ret;
67867308
FB		 11437 case TARGET_NR_setgroups:
11438 {
11439 int gidsetsize = arg1;
0c866a7e 11440 target_id *target_grouplist;
f2b79ce9 11441 gid_t *grouplist = NULL;
67867308 11442 int i;
f2b79ce9
DA		 11443 if (gidsetsize) {
11444 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 11445 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9 11446 if (!target_grouplist) {
259841c1 11447 return -TARGET_EFAULT;
f2b79ce9
DA		 11448 }
11449 for (i = 0; i < gidsetsize; i++) {
11450 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
11451 }
11452 unlock_user(target_grouplist, arg2, 0);
579a97f7 11453 }
72eb7ea8 11454 return get_errno(setgroups(gidsetsize, grouplist));
67867308 11455 }
67867308 11456 case TARGET_NR_fchown:
72eb7ea8 11457 return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
c0d472b1 11458#if defined(TARGET_NR_fchownat)
ccfa72b7 11459 case TARGET_NR_fchownat:
579a97f7 11460 if (!(p = lock_user_string(arg2)))
2852aafd 11461 return -TARGET_EFAULT;
c0d472b1
PM		 11462 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
11463 low2highgid(arg4), arg5));
579a97f7 11464 unlock_user(p, arg2, 0);
72eb7ea8 11465 return ret;
ccfa72b7 11466#endif
67867308
FB		 11467#ifdef TARGET_NR_setresuid
11468 case TARGET_NR_setresuid:
72eb7ea8
RH		 11469 return get_errno(sys_setresuid(low2highuid(arg1),
11470 low2highuid(arg2),
11471 low2highuid(arg3)));
67867308
FB		 11472#endif
11473#ifdef TARGET_NR_getresuid
11474 case TARGET_NR_getresuid:
11475 {
53a5960a 11476 uid_t ruid, euid, suid;
67867308
FB		 11477 ret = get_errno(getresuid(&ruid, &euid, &suid));
11478 if (!is_error(ret)) {
76ca310a
PM		 11479 if (put_user_id(high2lowuid(ruid), arg1)
11480 || put_user_id(high2lowuid(euid), arg2)
11481 || put_user_id(high2lowuid(suid), arg3))
2852aafd 11482 return -TARGET_EFAULT;
67867308
FB		 11483 }
11484 }
72eb7ea8 11485 return ret;
67867308
FB		 11486#endif
11487#ifdef TARGET_NR_getresgid
11488 case TARGET_NR_setresgid:
72eb7ea8
RH		 11489 return get_errno(sys_setresgid(low2highgid(arg1),
11490 low2highgid(arg2),
11491 low2highgid(arg3)));
67867308
FB		 11492#endif
11493#ifdef TARGET_NR_getresgid
11494 case TARGET_NR_getresgid:
11495 {
53a5960a 11496 gid_t rgid, egid, sgid;
67867308
FB		 11497 ret = get_errno(getresgid(&rgid, &egid, &sgid));
11498 if (!is_error(ret)) {
76ca310a
PM		 11499 if (put_user_id(high2lowgid(rgid), arg1)
11500 || put_user_id(high2lowgid(egid), arg2)
11501 || put_user_id(high2lowgid(sgid), arg3))
2852aafd 11502 return -TARGET_EFAULT;
67867308
FB		 11503 }
11504 }
72eb7ea8 11505 return ret;
67867308 11506#endif
704eff6c 11507#ifdef TARGET_NR_chown
67867308 11508 case TARGET_NR_chown:
579a97f7 11509 if (!(p = lock_user_string(arg1)))
2852aafd 11510 return -TARGET_EFAULT;
53a5960a
PB		 11511 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
11512 unlock_user(p, arg1, 0);
72eb7ea8 11513 return ret;
704eff6c 11514#endif
67867308 11515 case TARGET_NR_setuid:
72eb7ea8 11516 return get_errno(sys_setuid(low2highuid(arg1)));
67867308 11517 case TARGET_NR_setgid:
72eb7ea8 11518 return get_errno(sys_setgid(low2highgid(arg1)));
67867308 11519 case TARGET_NR_setfsuid:
72eb7ea8 11520 return get_errno(setfsuid(arg1));
67867308 11521 case TARGET_NR_setfsgid:
72eb7ea8 11522 return get_errno(setfsgid(arg1));
67867308 11523
a315a145 11524#ifdef TARGET_NR_lchown32
31e31b8a 11525 case TARGET_NR_lchown32:
579a97f7 11526 if (!(p = lock_user_string(arg1)))
2852aafd 11527 return -TARGET_EFAULT;
53a5960a
PB		 11528 ret = get_errno(lchown(p, arg2, arg3));
11529 unlock_user(p, arg1, 0);
72eb7ea8 11530 return ret;
a315a145
FB		 11531#endif
11532#ifdef TARGET_NR_getuid32
31e31b8a 11533 case TARGET_NR_getuid32:
72eb7ea8 11534 return get_errno(getuid());
a315a145 11535#endif
64b4d28c
AJ		 11536
11537#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
11538 /* Alpha specific */
11539 case TARGET_NR_getxuid:
ba0e276d
RH		 11540 {
11541 uid_t euid;
11542 euid=geteuid();
11543 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
11544 }
72eb7ea8 11545 return get_errno(getuid());
64b4d28c
AJ		 11546#endif
11547#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
11548 /* Alpha specific */
11549 case TARGET_NR_getxgid:
ba0e276d
RH		 11550 {
11551 uid_t egid;
11552 egid=getegid();
11553 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
11554 }
72eb7ea8 11555 return get_errno(getgid());
64b4d28c 11556#endif
ba0e276d
RH		 11557#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
11558 /* Alpha specific */
11559 case TARGET_NR_osf_getsysinfo:
11560 ret = -TARGET_EOPNOTSUPP;
11561 switch (arg1) {
11562 case TARGET_GSI_IEEE_FP_CONTROL:
11563 {
21ba8564
RH		 11564 uint64_t fpcr = cpu_alpha_load_fpcr(cpu_env);
11565 uint64_t swcr = ((CPUAlphaState *)cpu_env)->swcr;
11566
11567 swcr &= ~SWCR_STATUS_MASK;
11568 swcr |= (fpcr >> 35) & SWCR_STATUS_MASK;
ba0e276d
RH		 11569
11570 if (put_user_u64 (swcr, arg2))
2852aafd 11571 return -TARGET_EFAULT;
ba0e276d
RH		 11572 ret = 0;
11573 }
11574 break;
11575
11576 /* case GSI_IEEE_STATE_AT_SIGNAL:
11577 -- Not implemented in linux kernel.
11578 case GSI_UACPROC:
11579 -- Retrieves current unaligned access state; not much used.
11580 case GSI_PROC_TYPE:
11581 -- Retrieves implver information; surely not used.
11582 case GSI_GET_HWRPB:
11583 -- Grabs a copy of the HWRPB; surely not used.
11584 */
11585 }
72eb7ea8 11586 return ret;
ba0e276d
RH		 11587#endif
11588#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
11589 /* Alpha specific */
11590 case TARGET_NR_osf_setsysinfo:
11591 ret = -TARGET_EOPNOTSUPP;
11592 switch (arg1) {
11593 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d 11594 {
21ba8564 11595 uint64_t swcr, fpcr;
ba0e276d 11596
6e06d515 11597 if (get_user_u64 (swcr, arg2)) {
2852aafd 11598 return -TARGET_EFAULT;
6e06d515 11599 }
ba0e276d 11600
21ba8564
RH		 11601 /*
11602 * The kernel calls swcr_update_status to update the
11603 * status bits from the fpcr at every point that it
11604 * could be queried. Therefore, we store the status
11605 * bits only in FPCR.
11606 */
11607 ((CPUAlphaState *)cpu_env)->swcr
11608 = swcr & (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK);
11609
11610 fpcr = cpu_alpha_load_fpcr(cpu_env);
11611 fpcr &= ((uint64_t)FPCR_DYN_MASK << 32);
11612 fpcr |= alpha_ieee_swcr_to_fpcr(swcr);
6e06d515 11613 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 11614 ret = 0;
6e06d515
RH		 11615 }
11616 break;
11617
11618 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
11619 {
21ba8564 11620 uint64_t exc, fpcr, fex;
6e06d515
RH		 11621
11622 if (get_user_u64(exc, arg2)) {
2852aafd 11623 return -TARGET_EFAULT;
6e06d515 11624 }
21ba8564
RH		 11625 exc &= SWCR_STATUS_MASK;
11626 fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 11627
21ba8564
RH		 11628 /* Old exceptions are not signaled. */
11629 fex = alpha_ieee_fpcr_to_swcr(fpcr);
11630 fex = exc & ~fex;
11631 fex >>= SWCR_STATUS_TO_EXCSUM_SHIFT;
11632 fex &= ((CPUArchState *)cpu_env)->swcr;
6e06d515 11633
21ba8564
RH		 11634 /* Update the hardware fpcr. */
11635 fpcr |= alpha_ieee_swcr_to_fpcr(exc);
6e06d515 11636 cpu_alpha_store_fpcr(cpu_env, fpcr);
6e06d515 11637
21ba8564
RH		 11638 if (fex) {
11639 int si_code = TARGET_FPE_FLTUNK;
6e06d515 11640 target_siginfo_t info;
21ba8564
RH		 11641
11642 if (fex & SWCR_TRAP_ENABLE_DNO) {
11643 si_code = TARGET_FPE_FLTUND;
11644 }
11645 if (fex & SWCR_TRAP_ENABLE_INE) {
11646 si_code = TARGET_FPE_FLTRES;
11647 }
11648 if (fex & SWCR_TRAP_ENABLE_UNF) {
11649 si_code = TARGET_FPE_FLTUND;
11650 }
11651 if (fex & SWCR_TRAP_ENABLE_OVF) {
11652 si_code = TARGET_FPE_FLTOVF;
11653 }
11654 if (fex & SWCR_TRAP_ENABLE_DZE) {
11655 si_code = TARGET_FPE_FLTDIV;
11656 }
11657 if (fex & SWCR_TRAP_ENABLE_INV) {
11658 si_code = TARGET_FPE_FLTINV;
11659 }
11660
6e06d515
RH		 11661 info.si_signo = SIGFPE;
11662 info.si_errno = 0;
11663 info.si_code = si_code;
11664 info._sifields._sigfault._addr
11665 = ((CPUArchState *)cpu_env)->pc;
9d2803f7
PM		 11666 queue_signal((CPUArchState *)cpu_env, info.si_signo,
11667 QEMU_SI_FAULT, &info);
ba0e276d 11668 }
21ba8564 11669 ret = 0;
ba0e276d
RH		 11670 }
11671 break;
11672
11673 /* case SSI_NVPAIRS:
11674 -- Used with SSIN_UACPROC to enable unaligned accesses.
11675 case SSI_IEEE_STATE_AT_SIGNAL:
11676 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
11677 -- Not implemented in linux kernel
11678 */
11679 }
72eb7ea8 11680 return ret;
ba0e276d
RH		 11681#endif
11682#ifdef TARGET_NR_osf_sigprocmask
11683 /* Alpha specific. */
11684 case TARGET_NR_osf_sigprocmask:
11685 {
11686 abi_ulong mask;
bc088ba1 11687 int how;
ba0e276d
RH		 11688 sigset_t set, oldset;
11689
11690 switch(arg1) {
11691 case TARGET_SIG_BLOCK:
11692 how = SIG_BLOCK;
11693 break;
11694 case TARGET_SIG_UNBLOCK:
11695 how = SIG_UNBLOCK;
11696 break;
11697 case TARGET_SIG_SETMASK:
11698 how = SIG_SETMASK;
11699 break;
11700 default:
259841c1 11701 return -TARGET_EINVAL;
ba0e276d
RH		 11702 }
11703 mask = arg2;
11704 target_to_host_old_sigset(&set, &mask);
3d3efba0
PM		 11705 ret = do_sigprocmask(how, &set, &oldset);
11706 if (!ret) {
11707 host_to_target_old_sigset(&mask, &oldset);
11708 ret = mask;
11709 }
ba0e276d 11710 }
72eb7ea8 11711 return ret;
ba0e276d 11712#endif
64b4d28c 11713
a315a145 11714#ifdef TARGET_NR_getgid32
31e31b8a 11715 case TARGET_NR_getgid32:
72eb7ea8 11716 return get_errno(getgid());
a315a145
FB		 11717#endif
11718#ifdef TARGET_NR_geteuid32
31e31b8a 11719 case TARGET_NR_geteuid32:
72eb7ea8 11720 return get_errno(geteuid());
a315a145
FB		 11721#endif
11722#ifdef TARGET_NR_getegid32
31e31b8a 11723 case TARGET_NR_getegid32:
72eb7ea8 11724 return get_errno(getegid());
a315a145
FB		 11725#endif
11726#ifdef TARGET_NR_setreuid32
31e31b8a 11727 case TARGET_NR_setreuid32:
72eb7ea8 11728 return get_errno(setreuid(arg1, arg2));
a315a145
FB		 11729#endif
11730#ifdef TARGET_NR_setregid32
31e31b8a 11731 case TARGET_NR_setregid32:
72eb7ea8 11732 return get_errno(setregid(arg1, arg2));
a315a145
FB		 11733#endif
11734#ifdef TARGET_NR_getgroups32
31e31b8a 11735 case TARGET_NR_getgroups32:
99c475ab
FB		 11736 {
11737 int gidsetsize = arg1;
53a5960a 11738 uint32_t *target_grouplist;
99c475ab
FB		 11739 gid_t *grouplist;
11740 int i;
11741
11742 grouplist = alloca(gidsetsize * sizeof(gid_t));
11743 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 11744 if (gidsetsize == 0)
72eb7ea8 11745 return ret;
99c475ab 11746 if (!is_error(ret)) {
579a97f7
FB		 11747 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
11748 if (!target_grouplist) {
259841c1 11749 return -TARGET_EFAULT;
579a97f7 11750 }
a2155fcc 11751 for(i = 0;i < ret; i++)
53a5960a
PB		 11752 target_grouplist[i] = tswap32(grouplist[i]);
11753 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 11754 }
11755 }
72eb7ea8 11756 return ret;
a315a145
FB		 11757#endif
11758#ifdef TARGET_NR_setgroups32
31e31b8a 11759 case TARGET_NR_setgroups32:
99c475ab
FB		 11760 {
11761 int gidsetsize = arg1;
53a5960a 11762 uint32_t *target_grouplist;
99c475ab
FB		 11763 gid_t *grouplist;
11764 int i;
3b46e624 11765
99c475ab 11766 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 11767 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
11768 if (!target_grouplist) {
259841c1 11769 return -TARGET_EFAULT;
579a97f7 11770 }
99c475ab 11771 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 11772 grouplist[i] = tswap32(target_grouplist[i]);
11773 unlock_user(target_grouplist, arg2, 0);
72eb7ea8 11774 return get_errno(setgroups(gidsetsize, grouplist));
99c475ab 11775 }
a315a145
FB		 11776#endif
11777#ifdef TARGET_NR_fchown32
31e31b8a 11778 case TARGET_NR_fchown32:
72eb7ea8 11779 return get_errno(fchown(arg1, arg2, arg3));
a315a145
FB		 11780#endif
11781#ifdef TARGET_NR_setresuid32
31e31b8a 11782 case TARGET_NR_setresuid32:
72eb7ea8 11783 return get_errno(sys_setresuid(arg1, arg2, arg3));
a315a145
FB		 11784#endif
11785#ifdef TARGET_NR_getresuid32
31e31b8a 11786 case TARGET_NR_getresuid32:
b03c60f3 11787 {
53a5960a 11788 uid_t ruid, euid, suid;
b03c60f3
FB		 11789 ret = get_errno(getresuid(&ruid, &euid, &suid));
11790 if (!is_error(ret)) {
2f619698
FB		 11791 if (put_user_u32(ruid, arg1)
11792 || put_user_u32(euid, arg2)
11793 || put_user_u32(suid, arg3))
2852aafd 11794 return -TARGET_EFAULT;
b03c60f3
FB		 11795 }
11796 }
72eb7ea8 11797 return ret;
a315a145
FB		 11798#endif
11799#ifdef TARGET_NR_setresgid32
31e31b8a 11800 case TARGET_NR_setresgid32:
72eb7ea8 11801 return get_errno(sys_setresgid(arg1, arg2, arg3));
a315a145
FB		 11802#endif
11803#ifdef TARGET_NR_getresgid32
31e31b8a 11804 case TARGET_NR_getresgid32:
b03c60f3 11805 {
53a5960a 11806 gid_t rgid, egid, sgid;
b03c60f3
FB		 11807 ret = get_errno(getresgid(&rgid, &egid, &sgid));
11808 if (!is_error(ret)) {
2f619698
FB		 11809 if (put_user_u32(rgid, arg1)
11810 || put_user_u32(egid, arg2)
11811 || put_user_u32(sgid, arg3))
2852aafd 11812 return -TARGET_EFAULT;
b03c60f3
FB		 11813 }
11814 }
72eb7ea8 11815 return ret;
a315a145
FB		 11816#endif
11817#ifdef TARGET_NR_chown32
31e31b8a 11818 case TARGET_NR_chown32:
579a97f7 11819 if (!(p = lock_user_string(arg1)))
2852aafd 11820 return -TARGET_EFAULT;
53a5960a
PB		 11821 ret = get_errno(chown(p, arg2, arg3));
11822 unlock_user(p, arg1, 0);
72eb7ea8 11823 return ret;
a315a145
FB		 11824#endif
11825#ifdef TARGET_NR_setuid32
31e31b8a 11826 case TARGET_NR_setuid32:
72eb7ea8 11827 return get_errno(sys_setuid(arg1));
a315a145
FB		 11828#endif
11829#ifdef TARGET_NR_setgid32
31e31b8a 11830 case TARGET_NR_setgid32:
72eb7ea8 11831 return get_errno(sys_setgid(arg1));
a315a145
FB		 11832#endif
11833#ifdef TARGET_NR_setfsuid32
31e31b8a 11834 case TARGET_NR_setfsuid32:
72eb7ea8 11835 return get_errno(setfsuid(arg1));
a315a145
FB		 11836#endif
11837#ifdef TARGET_NR_setfsgid32
31e31b8a 11838 case TARGET_NR_setfsgid32:
72eb7ea8 11839 return get_errno(setfsgid(arg1));
a315a145 11840#endif
ffa65c3b 11841#ifdef TARGET_NR_mincore
31e31b8a 11842 case TARGET_NR_mincore:
04bb9ace 11843 {
259841c1 11844 void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
98a3331a 11845 if (!a) {
259841c1 11846 return -TARGET_ENOMEM;
98a3331a 11847 }
98a3331a
FSM		 11848 p = lock_user_string(arg3);
11849 if (!p) {
259841c1
RH		 11850 ret = -TARGET_EFAULT;
11851 } else {
11852 ret = get_errno(mincore(a, arg2, p));
11853 unlock_user(p, arg3, ret);
98a3331a 11854 }
04bb9ace
AJ		 11855 unlock_user(a, arg1, 0);
11856 }
72eb7ea8 11857 return ret;
ffa65c3b 11858#endif
408321b6
AJ		 11859#ifdef TARGET_NR_arm_fadvise64_64
11860 case TARGET_NR_arm_fadvise64_64:
e0156a9d
PM		 11861 /* arm_fadvise64_64 looks like fadvise64_64 but
11862 * with different argument order: fd, advice, offset, len
11863 * rather than the usual fd, offset, len, advice.
11864 * Note that offset and len are both 64-bit so appear as
11865 * pairs of 32-bit registers.
11866 */
11867 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
11868 target_offset64(arg5, arg6), arg2);
72eb7ea8 11869 return -host_to_target_errno(ret);
408321b6 11870#endif
badd3cd8
PM		 11871
11872#if TARGET_ABI_BITS == 32
11873
11874#ifdef TARGET_NR_fadvise64_64
11875 case TARGET_NR_fadvise64_64:
64a563dd 11876#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
43046b5a
LV		 11877 /* 6 args: fd, advice, offset (high, low), len (high, low) */
11878 ret = arg2;
11879 arg2 = arg3;
11880 arg3 = arg4;
11881 arg4 = arg5;
11882 arg5 = arg6;
11883 arg6 = ret;
11884#else
badd3cd8 11885 /* 6 args: fd, offset (high, low), len (high, low), advice */
8bf8e9df 11886 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 11887 /* offset is in (3,4), len in (5,6) and advice in 7 */
11888 arg2 = arg3;
11889 arg3 = arg4;
11890 arg4 = arg5;
11891 arg5 = arg6;
11892 arg6 = arg7;
11893 }
43046b5a 11894#endif
72eb7ea8
RH		 11895 ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
11896 target_offset64(arg4, arg5), arg6);
11897 return -host_to_target_errno(ret);
badd3cd8
PM		 11898#endif
11899
11900#ifdef TARGET_NR_fadvise64
11901 case TARGET_NR_fadvise64:
11902 /* 5 args: fd, offset (high, low), len, advice */
8bf8e9df 11903 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 11904 /* offset is in (3,4), len in 5 and advice in 6 */
11905 arg2 = arg3;
11906 arg3 = arg4;
11907 arg4 = arg5;
11908 arg5 = arg6;
11909 }
72eb7ea8
RH		 11910 ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
11911 return -host_to_target_errno(ret);
408321b6 11912#endif
badd3cd8
PM		 11913
11914#else /* not a 32-bit ABI */
e0156a9d 11915#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 11916#ifdef TARGET_NR_fadvise64_64
11917 case TARGET_NR_fadvise64_64:
11918#endif
e72d2cc7
UH		 11919#ifdef TARGET_NR_fadvise64
11920 case TARGET_NR_fadvise64:
11921#endif
11922#ifdef TARGET_S390X
11923 switch (arg4) {
11924 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
11925 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
11926 case 6: arg4 = POSIX_FADV_DONTNEED; break;
11927 case 7: arg4 = POSIX_FADV_NOREUSE; break;
11928 default: break;
11929 }
11930#endif
72eb7ea8 11931 return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
408321b6 11932#endif
badd3cd8
PM		 11933#endif /* end of 64-bit ABI fadvise handling */
11934
ffa65c3b 11935#ifdef TARGET_NR_madvise
31e31b8a 11936 case TARGET_NR_madvise:
24836689 11937 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 11938 turns private file-backed mappings into anonymous mappings.
24836689
PB		 11939 This will break MADV_DONTNEED.
11940 This is a hint, so ignoring and returning success is ok. */
72eb7ea8 11941 return 0;
ffa65c3b 11942#endif
bbf5f2a1 11943#ifdef TARGET_NR_fcntl64
31e31b8a 11944 case TARGET_NR_fcntl64:
77e4672d 11945 {
bbf5f2a1
AB		 11946 int cmd;
11947 struct flock64 fl;
213d3e9e
PM		 11948 from_flock64_fn *copyfrom = copy_from_user_flock64;
11949 to_flock64_fn *copyto = copy_to_user_flock64;
11950
ce4defa0 11951#ifdef TARGET_ARM
7f254c5c
LV		 11952 if (!((CPUARMState *)cpu_env)->eabi) {
11953 copyfrom = copy_from_user_oabi_flock64;
11954 copyto = copy_to_user_oabi_flock64;
213d3e9e 11955 }
ce4defa0 11956#endif
77e4672d 11957
bbf5f2a1 11958 cmd = target_to_host_fcntl_cmd(arg2);
31b63193 11959 if (cmd == -TARGET_EINVAL) {
72eb7ea8 11960 return cmd;
31b63193 11961 }
b1e341eb 11962
60cd49d5 11963 switch(arg2) {
b1e341eb 11964 case TARGET_F_GETLK64:
213d3e9e
PM		 11965 ret = copyfrom(&fl, arg3);
11966 if (ret) {
11967 break;
5813427b 11968 }
af8ab2bf 11969 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
213d3e9e
PM		 11970 if (ret == 0) {
11971 ret = copyto(arg3, &fl);
11972 }
77e4672d
FB		 11973 break;
11974
b1e341eb
TS		 11975 case TARGET_F_SETLK64:
11976 case TARGET_F_SETLKW64:
213d3e9e
PM		 11977 ret = copyfrom(&fl, arg3);
11978 if (ret) {
11979 break;
ce4defa0 11980 }
435da5e7 11981 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
77e4672d 11982 break;
60cd49d5 11983 default:
5f106811 11984 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 11985 break;
11986 }
72eb7ea8 11987 return ret;
77e4672d 11988 }
60cd49d5 11989#endif
7d600c80
TS		 11990#ifdef TARGET_NR_cacheflush
11991 case TARGET_NR_cacheflush:
11992 /* self-modifying code is handled automatically, so nothing needed */
72eb7ea8 11993 return 0;
7d600c80 11994#endif
c573ff67
FB		 11995#ifdef TARGET_NR_getpagesize
11996 case TARGET_NR_getpagesize:
72eb7ea8 11997 return TARGET_PAGE_SIZE;
ebc05488 11998#endif
31e31b8a 11999 case TARGET_NR_gettid:
71ba74f6 12000 return get_errno(sys_gettid());
e5febef5 12001#ifdef TARGET_NR_readahead
31e31b8a 12002 case TARGET_NR_readahead:
2054ac9b 12003#if TARGET_ABI_BITS == 32
8bf8e9df 12004 if (regpairs_aligned(cpu_env, num)) {
2054ac9b
AJ		 12005 arg2 = arg3;
12006 arg3 = arg4;
12007 arg4 = arg5;
12008 }
77c6850f 12009 ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
2054ac9b
AJ		 12010#else
12011 ret = get_errno(readahead(arg1, arg2, arg3));
12012#endif
72eb7ea8 12013 return ret;
e5febef5 12014#endif
a790ae38 12015#ifdef CONFIG_ATTR
ebc05488 12016#ifdef TARGET_NR_setxattr
31e31b8a
FB		 12017 case TARGET_NR_listxattr:
12018 case TARGET_NR_llistxattr:
fb5590f7
PM		 12019 {
12020 void *p, *b = 0;
12021 if (arg2) {
12022 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
12023 if (!b) {
72eb7ea8 12024 return -TARGET_EFAULT;
fb5590f7
PM		 12025 }
12026 }
12027 p = lock_user_string(arg1);
12028 if (p) {
12029 if (num == TARGET_NR_listxattr) {
12030 ret = get_errno(listxattr(p, b, arg3));
12031 } else {
12032 ret = get_errno(llistxattr(p, b, arg3));
12033 }
12034 } else {
12035 ret = -TARGET_EFAULT;
12036 }
12037 unlock_user(p, arg1, 0);
12038 unlock_user(b, arg2, arg3);
72eb7ea8 12039 return ret;
fb5590f7 12040 }
31e31b8a 12041 case TARGET_NR_flistxattr:
fb5590f7
PM		 12042 {
12043 void *b = 0;
12044 if (arg2) {
12045 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
12046 if (!b) {
72eb7ea8 12047 return -TARGET_EFAULT;
fb5590f7
PM		 12048 }
12049 }
12050 ret = get_errno(flistxattr(arg1, b, arg3));
12051 unlock_user(b, arg2, arg3);
72eb7ea8 12052 return ret;
fb5590f7 12053 }
a790ae38 12054 case TARGET_NR_setxattr:
30297b55 12055 case TARGET_NR_lsetxattr:
a790ae38 12056 {
e3c33ec6
PM		 12057 void *p, *n, *v = 0;
12058 if (arg3) {
12059 v = lock_user(VERIFY_READ, arg3, arg4, 1);
12060 if (!v) {
72eb7ea8 12061 return -TARGET_EFAULT;
e3c33ec6
PM		 12062 }
12063 }
a790ae38
ACH		 12064 p = lock_user_string(arg1);
12065 n = lock_user_string(arg2);
e3c33ec6 12066 if (p && n) {
30297b55
PM		 12067 if (num == TARGET_NR_setxattr) {
12068 ret = get_errno(setxattr(p, n, v, arg4, arg5));
12069 } else {
12070 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
12071 }
a790ae38
ACH		 12072 } else {
12073 ret = -TARGET_EFAULT;
12074 }
12075 unlock_user(p, arg1, 0);
12076 unlock_user(n, arg2, 0);
12077 unlock_user(v, arg3, 0);
12078 }
72eb7ea8 12079 return ret;
30297b55
PM		 12080 case TARGET_NR_fsetxattr:
12081 {
12082 void *n, *v = 0;
12083 if (arg3) {
12084 v = lock_user(VERIFY_READ, arg3, arg4, 1);
12085 if (!v) {
72eb7ea8 12086 return -TARGET_EFAULT;
30297b55
PM		 12087 }
12088 }
12089 n = lock_user_string(arg2);
12090 if (n) {
12091 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
12092 } else {
12093 ret = -TARGET_EFAULT;
12094 }
12095 unlock_user(n, arg2, 0);
12096 unlock_user(v, arg3, 0);
12097 }
72eb7ea8 12098 return ret;
a790ae38 12099 case TARGET_NR_getxattr:
30297b55 12100 case TARGET_NR_lgetxattr:
a790ae38 12101 {
e3c33ec6
PM		 12102 void *p, *n, *v = 0;
12103 if (arg3) {
12104 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
12105 if (!v) {
72eb7ea8 12106 return -TARGET_EFAULT;
e3c33ec6
PM		 12107 }
12108 }
a790ae38
ACH		 12109 p = lock_user_string(arg1);
12110 n = lock_user_string(arg2);
e3c33ec6 12111 if (p && n) {
30297b55
PM		 12112 if (num == TARGET_NR_getxattr) {
12113 ret = get_errno(getxattr(p, n, v, arg4));
12114 } else {
12115 ret = get_errno(lgetxattr(p, n, v, arg4));
12116 }
a790ae38
ACH		 12117 } else {
12118 ret = -TARGET_EFAULT;
12119 }
12120 unlock_user(p, arg1, 0);
12121 unlock_user(n, arg2, 0);
12122 unlock_user(v, arg3, arg4);
12123 }
72eb7ea8 12124 return ret;
30297b55
PM		 12125 case TARGET_NR_fgetxattr:
12126 {
12127 void *n, *v = 0;
12128 if (arg3) {
12129 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
12130 if (!v) {
72eb7ea8 12131 return -TARGET_EFAULT;
30297b55
PM		 12132 }
12133 }
12134 n = lock_user_string(arg2);
12135 if (n) {
12136 ret = get_errno(fgetxattr(arg1, n, v, arg4));
12137 } else {
12138 ret = -TARGET_EFAULT;
12139 }
12140 unlock_user(n, arg2, 0);
12141 unlock_user(v, arg3, arg4);
12142 }
72eb7ea8 12143 return ret;
a790ae38 12144 case TARGET_NR_removexattr:
30297b55 12145 case TARGET_NR_lremovexattr:
a790ae38
ACH		 12146 {
12147 void *p, *n;
12148 p = lock_user_string(arg1);
12149 n = lock_user_string(arg2);
12150 if (p && n) {
30297b55
PM		 12151 if (num == TARGET_NR_removexattr) {
12152 ret = get_errno(removexattr(p, n));
12153 } else {
12154 ret = get_errno(lremovexattr(p, n));
12155 }
a790ae38
ACH		 12156 } else {
12157 ret = -TARGET_EFAULT;
12158 }
12159 unlock_user(p, arg1, 0);
12160 unlock_user(n, arg2, 0);
12161 }
72eb7ea8 12162 return ret;
30297b55
PM		 12163 case TARGET_NR_fremovexattr:
12164 {
12165 void *n;
12166 n = lock_user_string(arg2);
12167 if (n) {
12168 ret = get_errno(fremovexattr(arg1, n));
12169 } else {
12170 ret = -TARGET_EFAULT;
12171 }
12172 unlock_user(n, arg2, 0);
12173 }
72eb7ea8 12174 return ret;
ebc05488 12175#endif
a790ae38 12176#endif /* CONFIG_ATTR */
ebc05488 12177#ifdef TARGET_NR_set_thread_area
5cd4393b 12178 case TARGET_NR_set_thread_area:
8d18e893 12179#if defined(TARGET_MIPS)
d279279e 12180 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
72eb7ea8 12181 return 0;
ef96779b
EI		 12182#elif defined(TARGET_CRIS)
12183 if (arg1 & 0xff)
12184 ret = -TARGET_EINVAL;
12185 else {
12186 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
12187 ret = 0;
12188 }
72eb7ea8 12189 return ret;
8d18e893 12190#elif defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 12191 return do_set_thread_area(cpu_env, arg1);
1ccd9374
PM		 12192#elif defined(TARGET_M68K)
12193 {
0429a971 12194 TaskState *ts = cpu->opaque;
1ccd9374 12195 ts->tp_value = arg1;
72eb7ea8 12196 return 0;
1ccd9374 12197 }
6f5b89a0 12198#else
10f45d98 12199 return -TARGET_ENOSYS;
6f5b89a0
TS		 12200#endif
12201#endif
12202#ifdef TARGET_NR_get_thread_area
5cd4393b 12203 case TARGET_NR_get_thread_area:
8d18e893 12204#if defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 12205 return do_get_thread_area(cpu_env, arg1);
1ccd9374
PM		 12206#elif defined(TARGET_M68K)
12207 {
0429a971 12208 TaskState *ts = cpu->opaque;
72eb7ea8 12209 return ts->tp_value;
1ccd9374 12210 }
8d18e893 12211#else
10f45d98 12212 return -TARGET_ENOSYS;
48dc41eb 12213#endif
8d18e893 12214#endif
48dc41eb
FB		 12215#ifdef TARGET_NR_getdomainname
12216 case TARGET_NR_getdomainname:
10f45d98 12217 return -TARGET_ENOSYS;
ebc05488 12218#endif
6f5b89a0 12219
12e3340c
MF		 12220#ifdef TARGET_NR_clock_settime
12221 case TARGET_NR_clock_settime:
12222 {
12223 struct timespec ts;
12224
12225 ret = target_to_host_timespec(&ts, arg2);
12226 if (!is_error(ret)) {
12227 ret = get_errno(clock_settime(arg1, &ts));
12228 }
72eb7ea8 12229 return ret;
12e3340c
MF		 12230 }
12231#endif
c6c8d102
AF		 12232#ifdef TARGET_NR_clock_settime64
12233 case TARGET_NR_clock_settime64:
12234 {
12235 struct timespec ts;
12236
12237 ret = target_to_host_timespec64(&ts, arg2);
12238 if (!is_error(ret)) {
12239 ret = get_errno(clock_settime(arg1, &ts));
12240 }
12241 return ret;
12242 }
12243#endif
b5906f95
TS		 12244#ifdef TARGET_NR_clock_gettime
12245 case TARGET_NR_clock_gettime:
12246 {
12247 struct timespec ts;
12248 ret = get_errno(clock_gettime(arg1, &ts));
12249 if (!is_error(ret)) {
b9f9908e 12250 ret = host_to_target_timespec(arg2, &ts);
b5906f95 12251 }
72eb7ea8 12252 return ret;
b5906f95
TS		 12253 }
12254#endif
c6c8d102
AF		 12255#ifdef TARGET_NR_clock_gettime64
12256 case TARGET_NR_clock_gettime64:
12257 {
12258 struct timespec ts;
12259 ret = get_errno(clock_gettime(arg1, &ts));
12260 if (!is_error(ret)) {
12261 ret = host_to_target_timespec64(arg2, &ts);
12262 }
12263 return ret;
12264 }
12265#endif
b5906f95
TS		 12266#ifdef TARGET_NR_clock_getres
12267 case TARGET_NR_clock_getres:
12268 {
12269 struct timespec ts;
12270 ret = get_errno(clock_getres(arg1, &ts));
12271 if (!is_error(ret)) {
12272 host_to_target_timespec(arg2, &ts);
12273 }
72eb7ea8 12274 return ret;
b5906f95
TS		 12275 }
12276#endif
828cb3a1
FB		 12277#ifdef TARGET_NR_clock_getres_time64
12278 case TARGET_NR_clock_getres_time64:
12279 {
12280 struct timespec ts;
12281 ret = get_errno(clock_getres(arg1, &ts));
12282 if (!is_error(ret)) {
12283 host_to_target_timespec64(arg2, &ts);
12284 }
12285 return ret;
12286 }
12287#endif
63d7651b
PB		 12288#ifdef TARGET_NR_clock_nanosleep
12289 case TARGET_NR_clock_nanosleep:
12290 {
12291 struct timespec ts;
b09d6406
FB		 12292 if (target_to_host_timespec(&ts, arg3)) {
12293 return -TARGET_EFAULT;
12294 }
9e518226
PM		 12295 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
12296 &ts, arg4 ? &ts : NULL));
8ec68a0a
LV		 12297 /*
12298 * if the call is interrupted by a signal handler, it fails
12299 * with error -TARGET_EINTR and if arg4 is not NULL and arg2 is not
12300 * TIMER_ABSTIME, it returns the remaining unslept time in arg4.
12301 */
b09d6406
FB		 12302 if (ret == -TARGET_EINTR && arg4 && arg2 != TIMER_ABSTIME &&
12303 host_to_target_timespec(arg4, &ts)) {
12304 return -TARGET_EFAULT;
8ec68a0a 12305 }
8fbe8fdf 12306
72eb7ea8 12307 return ret;
63d7651b
PB		 12308 }
12309#endif
6ac03b2c
FB		 12310#ifdef TARGET_NR_clock_nanosleep_time64
12311 case TARGET_NR_clock_nanosleep_time64:
12312 {
12313 struct timespec ts;
12314
12315 if (target_to_host_timespec64(&ts, arg3)) {
12316 return -TARGET_EFAULT;
12317 }
12318
12319 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
12320 &ts, arg4 ? &ts : NULL));
12321
12322 if (ret == -TARGET_EINTR && arg4 && arg2 != TIMER_ABSTIME &&
12323 host_to_target_timespec64(arg4, &ts)) {
12324 return -TARGET_EFAULT;
12325 }
12326 return ret;
12327 }
12328#endif
b5906f95 12329
6f5b89a0
TS		 12330#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
12331 case TARGET_NR_set_tid_address:
3e8f1628 12332 return get_errno(set_tid_address((int *)g2h(cpu, arg1)));
6f5b89a0
TS		 12333#endif
12334
4cae1d16 12335 case TARGET_NR_tkill:
72eb7ea8 12336 return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16 12337
71455574 12338 case TARGET_NR_tgkill:
72eb7ea8
RH		 12339 return get_errno(safe_tgkill((int)arg1, (int)arg2,
12340 target_to_host_signal(arg3)));
71455574 12341
4f2b1fe8
TS		 12342#ifdef TARGET_NR_set_robust_list
12343 case TARGET_NR_set_robust_list:
e9a970a8
PM		 12344 case TARGET_NR_get_robust_list:
12345 /* The ABI for supporting robust futexes has userspace pass
12346 * the kernel a pointer to a linked list which is updated by
12347 * userspace after the syscall; the list is walked by the kernel
12348 * when the thread exits. Since the linked list in QEMU guest
12349 * memory isn't a valid linked list for the host and we have
12350 * no way to reliably intercept the thread-death event, we can't
12351 * support these. Silently return ENOSYS so that guest userspace
12352 * falls back to a non-robust futex implementation (which should
12353 * be OK except in the corner case of the guest crashing while
12354 * holding a mutex that is shared with another process via
12355 * shared memory).
12356 */
10f45d98 12357 return -TARGET_ENOSYS;
4f2b1fe8
TS		 12358#endif
12359
1acae9f2 12360#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 12361 case TARGET_NR_utimensat:
12362 {
ebc996f3
RV		 12363 struct timespec *tsp, ts[2];
12364 if (!arg3) {
12365 tsp = NULL;
12366 } else {
b3a3af70
FB		 12367 if (target_to_host_timespec(ts, arg3)) {
12368 return -TARGET_EFAULT;
12369 }
12370 if (target_to_host_timespec(ts + 1, arg3 +
12371 sizeof(struct target_timespec))) {
12372 return -TARGET_EFAULT;
12373 }
ebc996f3
RV		 12374 tsp = ts;
12375 }
9007f0ef 12376 if (!arg2)
ebc996f3 12377 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 12378 else {
579a97f7 12379 if (!(p = lock_user_string(arg2))) {
259841c1 12380 return -TARGET_EFAULT;
579a97f7 12381 }
ebc996f3 12382 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 12383 unlock_user(p, arg2, 0);
cac46eb0
FB		 12384 }
12385 }
12386 return ret;
12387#endif
12388#ifdef TARGET_NR_utimensat_time64
12389 case TARGET_NR_utimensat_time64:
12390 {
12391 struct timespec *tsp, ts[2];
12392 if (!arg3) {
12393 tsp = NULL;
12394 } else {
12395 if (target_to_host_timespec64(ts, arg3)) {
12396 return -TARGET_EFAULT;
12397 }
12398 if (target_to_host_timespec64(ts + 1, arg3 +
12399 sizeof(struct target__kernel_timespec))) {
12400 return -TARGET_EFAULT;
12401 }
12402 tsp = ts;
12403 }
12404 if (!arg2)
12405 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
12406 else {
12407 p = lock_user_string(arg2);
12408 if (!p) {
12409 return -TARGET_EFAULT;
12410 }
12411 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
12412 unlock_user(p, arg2, 0);
9007f0ef
TS		 12413 }
12414 }
72eb7ea8 12415 return ret;
9007f0ef 12416#endif
859e8a89 12417#ifdef TARGET_NR_futex
bd0c5661 12418 case TARGET_NR_futex:
3e8f1628 12419 return do_futex(cpu, arg1, arg2, arg3, arg4, arg5, arg6);
859e8a89 12420#endif
14690296
AF		 12421#ifdef TARGET_NR_futex_time64
12422 case TARGET_NR_futex_time64:
3e8f1628 12423 return do_futex_time64(cpu, arg1, arg2, arg3, arg4, arg5, arg6);
14690296 12424#endif
dbfe4c36 12425#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 12426 case TARGET_NR_inotify_init:
12427 ret = get_errno(sys_inotify_init());
b929f7e5
PMD		 12428 if (ret >= 0) {
12429 fd_trans_register(ret, &target_inotify_trans);
12430 }
72eb7ea8 12431 return ret;
39b59763 12432#endif
a1606b0b 12433#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 12434#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
12435 case TARGET_NR_inotify_init1:
fea243e9
LD		 12436 ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
12437 fcntl_flags_tbl)));
b929f7e5
PMD		 12438 if (ret >= 0) {
12439 fd_trans_register(ret, &target_inotify_trans);
12440 }
72eb7ea8 12441 return ret;
c05c7a73 12442#endif
a1606b0b 12443#endif
dbfe4c36 12444#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 12445 case TARGET_NR_inotify_add_watch:
12446 p = lock_user_string(arg2);
12447 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
12448 unlock_user(p, arg2, 0);
72eb7ea8 12449 return ret;
39b59763 12450#endif
dbfe4c36 12451#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763 12452 case TARGET_NR_inotify_rm_watch:
72eb7ea8 12453 return get_errno(sys_inotify_rm_watch(arg1, arg2));
39b59763 12454#endif
9007f0ef 12455
8ec9cf89 12456#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 12457 case TARGET_NR_mq_open:
12458 {
c7536ab6 12459 struct mq_attr posix_mq_attr;
26400775 12460 struct mq_attr *pposix_mq_attr;
c7536ab6 12461 int host_flags;
24e1003a 12462
c7536ab6 12463 host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
26400775
LD		 12464 pposix_mq_attr = NULL;
12465 if (arg4) {
12466 if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
2852aafd 12467 return -TARGET_EFAULT;
26400775
LD		 12468 }
12469 pposix_mq_attr = &posix_mq_attr;
c7536ab6 12470 }
24e1003a 12471 p = lock_user_string(arg1 - 1);
c7536ab6 12472 if (!p) {
2852aafd 12473 return -TARGET_EFAULT;
b6ce1f6b 12474 }
26400775 12475 ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
24e1003a
AJ		 12476 unlock_user (p, arg1, 0);
12477 }
72eb7ea8 12478 return ret;
24e1003a
AJ		 12479
12480 case TARGET_NR_mq_unlink:
12481 p = lock_user_string(arg1 - 1);
3211215e 12482 if (!p) {
72eb7ea8 12483 return -TARGET_EFAULT;
3211215e 12484 }
24e1003a
AJ		 12485 ret = get_errno(mq_unlink(p));
12486 unlock_user (p, arg1, 0);
72eb7ea8 12487 return ret;
24e1003a 12488
859e8a89 12489#ifdef TARGET_NR_mq_timedsend
24e1003a
AJ		 12490 case TARGET_NR_mq_timedsend:
12491 {
12492 struct timespec ts;
12493
12494 p = lock_user (VERIFY_READ, arg2, arg3, 1);
12495 if (arg5 != 0) {
dcbcf5cf
FB		 12496 if (target_to_host_timespec(&ts, arg5)) {
12497 return -TARGET_EFAULT;
12498 }
d40ecd66 12499 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
dcbcf5cf
FB		 12500 if (!is_error(ret) && host_to_target_timespec(arg5, &ts)) {
12501 return -TARGET_EFAULT;
12502 }
d40ecd66
PM		 12503 } else {
12504 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
24e1003a 12505 }
24e1003a
AJ		 12506 unlock_user (p, arg2, arg3);
12507 }
72eb7ea8 12508 return ret;
859e8a89 12509#endif
d107e375
FB		 12510#ifdef TARGET_NR_mq_timedsend_time64
12511 case TARGET_NR_mq_timedsend_time64:
12512 {
12513 struct timespec ts;
12514
12515 p = lock_user(VERIFY_READ, arg2, arg3, 1);
12516 if (arg5 != 0) {
12517 if (target_to_host_timespec64(&ts, arg5)) {
12518 return -TARGET_EFAULT;
12519 }
12520 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
12521 if (!is_error(ret) && host_to_target_timespec64(arg5, &ts)) {
12522 return -TARGET_EFAULT;
12523 }
12524 } else {
12525 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
12526 }
12527 unlock_user(p, arg2, arg3);
12528 }
12529 return ret;
12530#endif
24e1003a 12531
859e8a89 12532#ifdef TARGET_NR_mq_timedreceive
24e1003a
AJ		 12533 case TARGET_NR_mq_timedreceive:
12534 {
12535 struct timespec ts;
12536 unsigned int prio;
12537
12538 p = lock_user (VERIFY_READ, arg2, arg3, 1);
12539 if (arg5 != 0) {
dcbcf5cf
FB		 12540 if (target_to_host_timespec(&ts, arg5)) {
12541 return -TARGET_EFAULT;
12542 }
d40ecd66
PM		 12543 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
12544 &prio, &ts));
dcbcf5cf
FB		 12545 if (!is_error(ret) && host_to_target_timespec(arg5, &ts)) {
12546 return -TARGET_EFAULT;
12547 }
d40ecd66
PM		 12548 } else {
12549 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
12550 &prio, NULL));
24e1003a 12551 }
24e1003a
AJ		 12552 unlock_user (p, arg2, arg3);
12553 if (arg4 != 0)
12554 put_user_u32(prio, arg4);
12555 }
72eb7ea8 12556 return ret;
859e8a89 12557#endif
d107e375
FB		 12558#ifdef TARGET_NR_mq_timedreceive_time64
12559 case TARGET_NR_mq_timedreceive_time64:
12560 {
12561 struct timespec ts;
12562 unsigned int prio;
12563
12564 p = lock_user(VERIFY_READ, arg2, arg3, 1);
12565 if (arg5 != 0) {
12566 if (target_to_host_timespec64(&ts, arg5)) {
12567 return -TARGET_EFAULT;
12568 }
12569 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
12570 &prio, &ts));
12571 if (!is_error(ret) && host_to_target_timespec64(arg5, &ts)) {
12572 return -TARGET_EFAULT;
12573 }
12574 } else {
12575 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
12576 &prio, NULL));
12577 }
12578 unlock_user(p, arg2, arg3);
12579 if (arg4 != 0) {
12580 put_user_u32(prio, arg4);
12581 }
12582 }
12583 return ret;
12584#endif
24e1003a
AJ		 12585
12586 /* Not implemented for now... */
12587/* case TARGET_NR_mq_notify: */
12588/* break; */
12589
12590 case TARGET_NR_mq_getsetattr:
12591 {
12592 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
12593 ret = 0;
24e1003a
AJ		 12594 if (arg2 != 0) {
12595 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
a23ea409
MF		 12596 ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
12597 &posix_mq_attr_out));
12598 } else if (arg3 != 0) {
12599 ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
12600 }
12601 if (ret == 0 && arg3 != 0) {
12602 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
24e1003a 12603 }
24e1003a 12604 }
72eb7ea8 12605 return ret;
24e1003a
AJ		 12606#endif
12607
3ce34dfb
VS		 12608#ifdef CONFIG_SPLICE
12609#ifdef TARGET_NR_tee
12610 case TARGET_NR_tee:
12611 {
12612 ret = get_errno(tee(arg1,arg2,arg3,arg4));
12613 }
72eb7ea8 12614 return ret;
3ce34dfb
VS		 12615#endif
12616#ifdef TARGET_NR_splice
12617 case TARGET_NR_splice:
12618 {
12619 loff_t loff_in, loff_out;
12620 loff_t *ploff_in = NULL, *ploff_out = NULL;
17644b36
AS		 12621 if (arg2) {
12622 if (get_user_u64(loff_in, arg2)) {
2852aafd 12623 return -TARGET_EFAULT;
17644b36 12624 }
3ce34dfb
VS		 12625 ploff_in = &loff_in;
12626 }
17644b36
AS		 12627 if (arg4) {
12628 if (get_user_u64(loff_out, arg4)) {
2852aafd 12629 return -TARGET_EFAULT;
17644b36 12630 }
3ce34dfb
VS		 12631 ploff_out = &loff_out;
12632 }
12633 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
17644b36
AS		 12634 if (arg2) {
12635 if (put_user_u64(loff_in, arg2)) {
2852aafd 12636 return -TARGET_EFAULT;
17644b36
AS		 12637 }
12638 }
12639 if (arg4) {
12640 if (put_user_u64(loff_out, arg4)) {
2852aafd 12641 return -TARGET_EFAULT;
17644b36
AS		 12642 }
12643 }
3ce34dfb 12644 }
72eb7ea8 12645 return ret;
3ce34dfb
VS		 12646#endif
12647#ifdef TARGET_NR_vmsplice
12648 case TARGET_NR_vmsplice:
12649 {
f287b2c2
RH		 12650 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
12651 if (vec != NULL) {
12652 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
12653 unlock_iovec(vec, arg2, arg3, 0);
12654 } else {
12655 ret = -host_to_target_errno(errno);
12656 }
3ce34dfb 12657 }
72eb7ea8 12658 return ret;
3ce34dfb
VS		 12659#endif
12660#endif /* CONFIG_SPLICE */
c2882b96
RV		 12661#ifdef CONFIG_EVENTFD
12662#if defined(TARGET_NR_eventfd)
12663 case TARGET_NR_eventfd:
12664 ret = get_errno(eventfd(arg1, 0));
b929f7e5
PMD		 12665 if (ret >= 0) {
12666 fd_trans_register(ret, &target_eventfd_trans);
12667 }
72eb7ea8 12668 return ret;
c2882b96
RV		 12669#endif
12670#if defined(TARGET_NR_eventfd2)
12671 case TARGET_NR_eventfd2:
5947c697 12672 {
78721301 12673 int host_flags = arg2 & (~(TARGET_O_NONBLOCK_MASK | TARGET_O_CLOEXEC));
5947c697
PJ		 12674 if (arg2 & TARGET_O_NONBLOCK) {
12675 host_flags |= O_NONBLOCK;
12676 }
12677 if (arg2 & TARGET_O_CLOEXEC) {
12678 host_flags |= O_CLOEXEC;
12679 }
12680 ret = get_errno(eventfd(arg1, host_flags));
b929f7e5
PMD		 12681 if (ret >= 0) {
12682 fd_trans_register(ret, &target_eventfd_trans);
12683 }
72eb7ea8 12684 return ret;
5947c697 12685 }
c2882b96
RV		 12686#endif
12687#endif /* CONFIG_EVENTFD */
d0927938
UH		 12688#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
12689 case TARGET_NR_fallocate:
20249ae1
AG		 12690#if TARGET_ABI_BITS == 32
12691 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
12692 target_offset64(arg5, arg6)));
12693#else
d0927938 12694 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 12695#endif
72eb7ea8 12696 return ret;
c727f47d
PM		 12697#endif
12698#if defined(CONFIG_SYNC_FILE_RANGE)
12699#if defined(TARGET_NR_sync_file_range)
12700 case TARGET_NR_sync_file_range:
12701#if TARGET_ABI_BITS == 32
bfcedc57
RV		 12702#if defined(TARGET_MIPS)
12703 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
12704 target_offset64(arg5, arg6), arg7));
12705#else
c727f47d
PM		 12706 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
12707 target_offset64(arg4, arg5), arg6));
bfcedc57 12708#endif /* !TARGET_MIPS */
c727f47d
PM		 12709#else
12710 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
12711#endif
72eb7ea8 12712 return ret;
c727f47d 12713#endif
5bcb4986
LV		 12714#if defined(TARGET_NR_sync_file_range2) || \
12715 defined(TARGET_NR_arm_sync_file_range)
c727f47d
PM		 12716#if defined(TARGET_NR_sync_file_range2)
12717 case TARGET_NR_sync_file_range2:
5bcb4986
LV		 12718#endif
12719#if defined(TARGET_NR_arm_sync_file_range)
12720 case TARGET_NR_arm_sync_file_range:
12721#endif
c727f47d
PM		 12722 /* This is like sync_file_range but the arguments are reordered */
12723#if TARGET_ABI_BITS == 32
12724 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
12725 target_offset64(arg5, arg6), arg2));
12726#else
12727 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
12728#endif
72eb7ea8 12729 return ret;
c727f47d 12730#endif
3b6edd16 12731#endif
e36800c9
LV		 12732#if defined(TARGET_NR_signalfd4)
12733 case TARGET_NR_signalfd4:
72eb7ea8 12734 return do_signalfd4(arg1, arg2, arg4);
e36800c9
LV		 12735#endif
12736#if defined(TARGET_NR_signalfd)
12737 case TARGET_NR_signalfd:
72eb7ea8 12738 return do_signalfd4(arg1, arg2, 0);
e36800c9 12739#endif
3b6edd16
PM		 12740#if defined(CONFIG_EPOLL)
12741#if defined(TARGET_NR_epoll_create)
12742 case TARGET_NR_epoll_create:
72eb7ea8 12743 return get_errno(epoll_create(arg1));
3b6edd16
PM		 12744#endif
12745#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
12746 case TARGET_NR_epoll_create1:
386d3865 12747 return get_errno(epoll_create1(target_to_host_bitmask(arg1, fcntl_flags_tbl)));
3b6edd16
PM		 12748#endif
12749#if defined(TARGET_NR_epoll_ctl)
12750 case TARGET_NR_epoll_ctl:
12751 {
12752 struct epoll_event ep;
12753 struct epoll_event *epp = 0;
12754 if (arg4) {
c7811022
L		 12755 if (arg2 != EPOLL_CTL_DEL) {
12756 struct target_epoll_event *target_ep;
12757 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
12758 return -TARGET_EFAULT;
12759 }
12760 ep.events = tswap32(target_ep->events);
12761 /*
12762 * The epoll_data_t union is just opaque data to the kernel,
12763 * so we transfer all 64 bits across and need not worry what
12764 * actual data type it is.
12765 */
12766 ep.data.u64 = tswap64(target_ep->data.u64);
12767 unlock_user_struct(target_ep, arg4, 0);
3b6edd16 12768 }
c7811022
L		 12769 /*
12770 * before kernel 2.6.9, EPOLL_CTL_DEL operation required a
12771 * non-null pointer, even though this argument is ignored.
12772 *
3b6edd16 12773 */
3b6edd16
PM		 12774 epp = &ep;
12775 }
72eb7ea8 12776 return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
3b6edd16
PM		 12777 }
12778#endif
12779
227f0214 12780#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 12781#if defined(TARGET_NR_epoll_wait)
12782 case TARGET_NR_epoll_wait:
12783#endif
227f0214 12784#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 12785 case TARGET_NR_epoll_pwait:
12786#endif
12787 {
12788 struct target_epoll_event *target_ep;
12789 struct epoll_event *ep;
12790 int epfd = arg1;
12791 int maxevents = arg3;
12792 int timeout = arg4;
12793
2ba7fae3 12794 if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
72eb7ea8 12795 return -TARGET_EINVAL;
2ba7fae3
PM		 12796 }
12797
3b6edd16
PM		 12798 target_ep = lock_user(VERIFY_WRITE, arg2,
12799 maxevents * sizeof(struct target_epoll_event), 1);
12800 if (!target_ep) {
2852aafd 12801 return -TARGET_EFAULT;
3b6edd16
PM		 12802 }
12803
04c95f4d
PM		 12804 ep = g_try_new(struct epoll_event, maxevents);
12805 if (!ep) {
12806 unlock_user(target_ep, arg2, 0);
72eb7ea8 12807 return -TARGET_ENOMEM;
04c95f4d 12808 }
3b6edd16
PM		 12809
12810 switch (num) {
227f0214 12811#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 12812 case TARGET_NR_epoll_pwait:
12813 {
12814 target_sigset_t *target_set;
12815 sigset_t _set, *set = &_set;
12816
12817 if (arg5) {
c815701e
PM		 12818 if (arg6 != sizeof(target_sigset_t)) {
12819 ret = -TARGET_EINVAL;
12820 break;
12821 }
12822
3b6edd16
PM		 12823 target_set = lock_user(VERIFY_READ, arg5,
12824 sizeof(target_sigset_t), 1);
12825 if (!target_set) {
04c95f4d
PM		 12826 ret = -TARGET_EFAULT;
12827 break;
3b6edd16
PM		 12828 }
12829 target_to_host_sigset(set, target_set);
12830 unlock_user(target_set, arg5, 0);
12831 } else {
12832 set = NULL;
12833 }
12834
227f0214
PM		 12835 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
12836 set, SIGSET_T_SIZE));
3b6edd16
PM		 12837 break;
12838 }
12839#endif
12840#if defined(TARGET_NR_epoll_wait)
12841 case TARGET_NR_epoll_wait:
227f0214
PM		 12842 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
12843 NULL, 0));
3b6edd16
PM		 12844 break;
12845#endif
12846 default:
12847 ret = -TARGET_ENOSYS;
12848 }
12849 if (!is_error(ret)) {
12850 int i;
12851 for (i = 0; i < ret; i++) {
12852 target_ep[i].events = tswap32(ep[i].events);
12853 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
12854 }
04c95f4d
PM		 12855 unlock_user(target_ep, arg2,
12856 ret * sizeof(struct target_epoll_event));
12857 } else {
12858 unlock_user(target_ep, arg2, 0);
3b6edd16 12859 }
04c95f4d 12860 g_free(ep);
72eb7ea8 12861 return ret;
3b6edd16
PM		 12862 }
12863#endif
163a05a8
PM		 12864#endif
12865#ifdef TARGET_NR_prlimit64
12866 case TARGET_NR_prlimit64:
12867 {
12868 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
12869 struct target_rlimit64 *target_rnew, *target_rold;
12870 struct host_rlimit64 rnew, rold, *rnewp = 0;
95018018 12871 int resource = target_to_host_resource(arg2);
055d92f8
TK		 12872
12873 if (arg3 && (resource != RLIMIT_AS &&
12874 resource != RLIMIT_DATA &&
12875 resource != RLIMIT_STACK)) {
163a05a8 12876 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
2852aafd 12877 return -TARGET_EFAULT;
163a05a8
PM		 12878 }
12879 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
12880 rnew.rlim_max = tswap64(target_rnew->rlim_max);
12881 unlock_user_struct(target_rnew, arg3, 0);
12882 rnewp = &rnew;
12883 }
12884
95018018 12885 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
163a05a8
PM		 12886 if (!is_error(ret) && arg4) {
12887 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
2852aafd 12888 return -TARGET_EFAULT;
163a05a8
PM		 12889 }
12890 target_rold->rlim_cur = tswap64(rold.rlim_cur);
12891 target_rold->rlim_max = tswap64(rold.rlim_max);
12892 unlock_user_struct(target_rold, arg4, 1);
12893 }
72eb7ea8 12894 return ret;
163a05a8 12895 }
3d21d29c
RH		 12896#endif
12897#ifdef TARGET_NR_gethostname
12898 case TARGET_NR_gethostname:
12899 {
12900 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
12901 if (name) {
12902 ret = get_errno(gethostname(name, arg2));
12903 unlock_user(name, arg1, arg2);
12904 } else {
12905 ret = -TARGET_EFAULT;
12906 }
72eb7ea8 12907 return ret;
3d21d29c 12908 }
89aaf1a6
RV		 12909#endif
12910#ifdef TARGET_NR_atomic_cmpxchg_32
12911 case TARGET_NR_atomic_cmpxchg_32:
12912 {
12913 /* should use start_exclusive from main.c */
12914 abi_ulong mem_value;
12915 if (get_user_u32(mem_value, arg6)) {
12916 target_siginfo_t info;
12917 info.si_signo = SIGSEGV;
12918 info.si_errno = 0;
12919 info.si_code = TARGET_SEGV_MAPERR;
12920 info._sifields._sigfault._addr = arg6;
9d2803f7
PM		 12921 queue_signal((CPUArchState *)cpu_env, info.si_signo,
12922 QEMU_SI_FAULT, &info);
89aaf1a6
RV		 12923 ret = 0xdeadbeef;
12924
12925 }
12926 if (mem_value == arg2)
12927 put_user_u32(arg1, arg6);
72eb7ea8 12928 return mem_value;
89aaf1a6
RV		 12929 }
12930#endif
12931#ifdef TARGET_NR_atomic_barrier
12932 case TARGET_NR_atomic_barrier:
72eb7ea8
RH		 12933 /* Like the kernel implementation and the
12934 qemu arm barrier, no-op this? */
12935 return 0;
d0927938 12936#endif
f4f1e10a
ECL		 12937
12938#ifdef TARGET_NR_timer_create
12939 case TARGET_NR_timer_create:
12940 {
12941 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
12942
12943 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
f4f1e10a
ECL		 12944
12945 int clkid = arg1;
12946 int timer_index = next_free_host_timer();
12947
12948 if (timer_index < 0) {
12949 ret = -TARGET_EAGAIN;
12950 } else {
12951 timer_t *phtimer = g_posix_timers + timer_index;
12952
12953 if (arg2) {
f4f1e10a 12954 phost_sevp = &host_sevp;
c065976f
PM		 12955 ret = target_to_host_sigevent(phost_sevp, arg2);
12956 if (ret != 0) {
72eb7ea8 12957 return ret;
c065976f 12958 }
f4f1e10a
ECL		 12959 }
12960
12961 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
12962 if (ret) {
12963 phtimer = NULL;
12964 } else {
aecc8861 12965 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
2852aafd 12966 return -TARGET_EFAULT;
f4f1e10a 12967 }
f4f1e10a
ECL		 12968 }
12969 }
72eb7ea8 12970 return ret;
f4f1e10a
ECL		 12971 }
12972#endif
12973
12974#ifdef TARGET_NR_timer_settime
12975 case TARGET_NR_timer_settime:
12976 {
12977 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
12978 * struct itimerspec * old_value */
aecc8861 12979 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 12980
aecc8861
AG		 12981 if (timerid < 0) {
12982 ret = timerid;
12983 } else if (arg3 == 0) {
f4f1e10a
ECL		 12984 ret = -TARGET_EINVAL;
12985 } else {
e52a99f7 12986 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 12987 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
12988
40c80b5e 12989 if (target_to_host_itimerspec(&hspec_new, arg3)) {
2852aafd 12990 return -TARGET_EFAULT;
40c80b5e 12991 }
f4f1e10a
ECL		 12992 ret = get_errno(
12993 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
40c80b5e 12994 if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
2852aafd 12995 return -TARGET_EFAULT;
40c80b5e 12996 }
f4f1e10a 12997 }
72eb7ea8 12998 return ret;
f4f1e10a
ECL		 12999 }
13000#endif
13001
828cb3a1
FB		 13002#ifdef TARGET_NR_timer_settime64
13003 case TARGET_NR_timer_settime64:
13004 {
13005 target_timer_t timerid = get_timer_id(arg1);
13006
13007 if (timerid < 0) {
13008 ret = timerid;
13009 } else if (arg3 == 0) {
13010 ret = -TARGET_EINVAL;
13011 } else {
13012 timer_t htimer = g_posix_timers[timerid];
13013 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
13014
13015 if (target_to_host_itimerspec64(&hspec_new, arg3)) {
13016 return -TARGET_EFAULT;
13017 }
13018 ret = get_errno(
13019 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
13020 if (arg4 && host_to_target_itimerspec64(arg4, &hspec_old)) {
13021 return -TARGET_EFAULT;
13022 }
13023 }
13024 return ret;
13025 }
13026#endif
13027
f4f1e10a
ECL		 13028#ifdef TARGET_NR_timer_gettime
13029 case TARGET_NR_timer_gettime:
13030 {
13031 /* args: timer_t timerid, struct itimerspec *curr_value */
aecc8861 13032 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 13033
aecc8861
AG		 13034 if (timerid < 0) {
13035 ret = timerid;
13036 } else if (!arg2) {
13037 ret = -TARGET_EFAULT;
f4f1e10a 13038 } else {
e52a99f7 13039 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 13040 struct itimerspec hspec;
13041 ret = get_errno(timer_gettime(htimer, &hspec));
13042
13043 if (host_to_target_itimerspec(arg2, &hspec)) {
13044 ret = -TARGET_EFAULT;
13045 }
13046 }
72eb7ea8 13047 return ret;
f4f1e10a
ECL		 13048 }
13049#endif
13050
828cb3a1
FB		 13051#ifdef TARGET_NR_timer_gettime64
13052 case TARGET_NR_timer_gettime64:
13053 {
13054 /* args: timer_t timerid, struct itimerspec64 *curr_value */
13055 target_timer_t timerid = get_timer_id(arg1);
13056
13057 if (timerid < 0) {
13058 ret = timerid;
13059 } else if (!arg2) {
13060 ret = -TARGET_EFAULT;
13061 } else {
13062 timer_t htimer = g_posix_timers[timerid];
13063 struct itimerspec hspec;
13064 ret = get_errno(timer_gettime(htimer, &hspec));
13065
13066 if (host_to_target_itimerspec64(arg2, &hspec)) {
13067 ret = -TARGET_EFAULT;
13068 }
13069 }
13070 return ret;
13071 }
13072#endif
13073
f4f1e10a
ECL		 13074#ifdef TARGET_NR_timer_getoverrun
13075 case TARGET_NR_timer_getoverrun:
13076 {
13077 /* args: timer_t timerid */
aecc8861 13078 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 13079
aecc8861
AG		 13080 if (timerid < 0) {
13081 ret = timerid;
f4f1e10a 13082 } else {
e52a99f7 13083 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 13084 ret = get_errno(timer_getoverrun(htimer));
13085 }
72eb7ea8 13086 return ret;
f4f1e10a
ECL		 13087 }
13088#endif
13089
13090#ifdef TARGET_NR_timer_delete
13091 case TARGET_NR_timer_delete:
13092 {
13093 /* args: timer_t timerid */
aecc8861 13094 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 13095
aecc8861
AG		 13096 if (timerid < 0) {
13097 ret = timerid;
f4f1e10a 13098 } else {
e52a99f7 13099 timer_t htimer = g_posix_timers[timerid];
f4f1e10a 13100 ret = get_errno(timer_delete(htimer));
e52a99f7 13101 g_posix_timers[timerid] = 0;
f4f1e10a 13102 }
72eb7ea8 13103 return ret;
f4f1e10a
ECL		 13104 }
13105#endif
13106
51834341
RV		 13107#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
13108 case TARGET_NR_timerfd_create:
72eb7ea8
RH		 13109 return get_errno(timerfd_create(arg1,
13110 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
51834341
RV		 13111#endif
13112
13113#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
13114 case TARGET_NR_timerfd_gettime:
13115 {
13116 struct itimerspec its_curr;
13117
13118 ret = get_errno(timerfd_gettime(arg1, &its_curr));
13119
13120 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
2852aafd 13121 return -TARGET_EFAULT;
51834341
RV		 13122 }
13123 }
72eb7ea8 13124 return ret;
51834341
RV		 13125#endif
13126
828cb3a1
FB		 13127#if defined(TARGET_NR_timerfd_gettime64) && defined(CONFIG_TIMERFD)
13128 case TARGET_NR_timerfd_gettime64:
13129 {
13130 struct itimerspec its_curr;
13131
13132 ret = get_errno(timerfd_gettime(arg1, &its_curr));
13133
13134 if (arg2 && host_to_target_itimerspec64(arg2, &its_curr)) {
13135 return -TARGET_EFAULT;
13136 }
13137 }
13138 return ret;
13139#endif
13140
51834341
RV		 13141#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
13142 case TARGET_NR_timerfd_settime:
13143 {
13144 struct itimerspec its_new, its_old, *p_new;
13145
13146 if (arg3) {
13147 if (target_to_host_itimerspec(&its_new, arg3)) {
2852aafd 13148 return -TARGET_EFAULT;
51834341
RV		 13149 }
13150 p_new = &its_new;
13151 } else {
13152 p_new = NULL;
13153 }
13154
13155 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
13156
13157 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
2852aafd 13158 return -TARGET_EFAULT;
51834341
RV		 13159 }
13160 }
72eb7ea8 13161 return ret;
51834341
RV		 13162#endif
13163
828cb3a1
FB		 13164#if defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)
13165 case TARGET_NR_timerfd_settime64:
13166 {
13167 struct itimerspec its_new, its_old, *p_new;
13168
13169 if (arg3) {
13170 if (target_to_host_itimerspec64(&its_new, arg3)) {
13171 return -TARGET_EFAULT;
13172 }
13173 p_new = &its_new;
13174 } else {
13175 p_new = NULL;
13176 }
13177
13178 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
13179
13180 if (arg4 && host_to_target_itimerspec64(arg4, &its_old)) {
13181 return -TARGET_EFAULT;
13182 }
13183 }
13184 return ret;
13185#endif
13186
ab31cda3
PB		 13187#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
13188 case TARGET_NR_ioprio_get:
72eb7ea8 13189 return get_errno(ioprio_get(arg1, arg2));
ab31cda3
PB		 13190#endif
13191
13192#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
13193 case TARGET_NR_ioprio_set:
72eb7ea8 13194 return get_errno(ioprio_set(arg1, arg2, arg3));
ab31cda3
PB		 13195#endif
13196
9af5c906
RV		 13197#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
13198 case TARGET_NR_setns:
72eb7ea8 13199 return get_errno(setns(arg1, arg2));
9af5c906
RV		 13200#endif
13201#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
13202 case TARGET_NR_unshare:
72eb7ea8 13203 return get_errno(unshare(arg1));
9af5c906 13204#endif
2f14788c
LV		 13205#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
13206 case TARGET_NR_kcmp:
72eb7ea8 13207 return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
2f14788c 13208#endif
fa97e38e
RH		 13209#ifdef TARGET_NR_swapcontext
13210 case TARGET_NR_swapcontext:
13211 /* PowerPC specific. */
72eb7ea8 13212 return do_swapcontext(cpu_env, arg1, arg2, arg3);
fa97e38e 13213#endif
9bdfa4d2
SCW		 13214#ifdef TARGET_NR_memfd_create
13215 case TARGET_NR_memfd_create:
13216 p = lock_user_string(arg1);
13217 if (!p) {
13218 return -TARGET_EFAULT;
13219 }
13220 ret = get_errno(memfd_create(p, arg2));
13221 fd_trans_unregister(ret);
13222 unlock_user(p, arg1, 0);
13223 return ret;
13224#endif
8500476f
AS		 13225#if defined TARGET_NR_membarrier && defined __NR_membarrier
13226 case TARGET_NR_membarrier:
13227 return get_errno(membarrier(arg1, arg2));
13228#endif
9af5c906 13229
84946457
AS		 13230#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
13231 case TARGET_NR_copy_file_range:
13232 {
13233 loff_t inoff, outoff;
13234 loff_t *pinoff = NULL, *poutoff = NULL;
13235
13236 if (arg2) {
13237 if (get_user_u64(inoff, arg2)) {
13238 return -TARGET_EFAULT;
13239 }
13240 pinoff = &inoff;
13241 }
13242 if (arg4) {
13243 if (get_user_u64(outoff, arg4)) {
13244 return -TARGET_EFAULT;
13245 }
13246 poutoff = &outoff;
13247 }
13248 ret = get_errno(safe_copy_file_range(arg1, pinoff, arg3, poutoff,
13249 arg5, arg6));
13250 if (!is_error(ret) && ret > 0) {
13251 if (arg2) {
13252 if (put_user_u64(inoff, arg2)) {
13253 return -TARGET_EFAULT;
13254 }
13255 }
13256 if (arg4) {
13257 if (put_user_u64(outoff, arg4)) {
13258 return -TARGET_EFAULT;
13259 }
13260 }
13261 }
13262 }
13263 return ret;
13264#endif
13265
31e31b8a 13266 default:
122f9c83 13267 qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
72eb7ea8 13268 return -TARGET_ENOSYS;
31e31b8a 13269 }
31e31b8a
FB		 13270 return ret;
13271}
dc1ce18b
RH		 13272
13273abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
13274 abi_long arg2, abi_long arg3, abi_long arg4,
13275 abi_long arg5, abi_long arg6, abi_long arg7,
13276 abi_long arg8)
13277{
29a0af61 13278 CPUState *cpu = env_cpu(cpu_env);
dc1ce18b
RH		 13279 abi_long ret;
13280
13281#ifdef DEBUG_ERESTARTSYS
13282 /* Debug-only code for exercising the syscall-restart code paths
13283 * in the per-architecture cpu main loops: restart every syscall
13284 * the guest makes once before letting it through.
13285 */
13286 {
13287 static bool flag;
13288 flag = !flag;
13289 if (flag) {
13290 return -TARGET_ERESTARTSYS;
13291 }
13292 }
13293#endif
13294
c36f7a64
EC		 13295 record_syscall_start(cpu, num, arg1,
13296 arg2, arg3, arg4, arg5, arg6, arg7, arg8);
dc1ce18b 13297
4b25a506 13298 if (unlikely(qemu_loglevel_mask(LOG_STRACE))) {
e400e119 13299 print_syscall(cpu_env, num, arg1, arg2, arg3, arg4, arg5, arg6);
4b25a506
JK		 13300 }
13301
13302 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
13303 arg5, arg6, arg7, arg8);
13304
13305 if (unlikely(qemu_loglevel_mask(LOG_STRACE))) {
e400e119
FB		 13306 print_syscall_ret(cpu_env, num, ret, arg1, arg2,
13307 arg3, arg4, arg5, arg6);
dc1ce18b
RH		 13308 }
13309
c36f7a64 13310 record_syscall_return(cpu, num, ret);
dc1ce18b
RH		 13311 return ret;
13312}
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