4 * Copyright (c) 2003 Fabrice Bellard
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.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 #define _ATFILE_SOURCE
20 #include "qemu/osdep.h"
21 #include "qemu/cutils.h"
22 #include "qemu/path.h"
23 #include "qemu/memfd.h"
24 #include "qemu/queue.h"
25 #include "qemu/plugin.h"
26 #include "target_mman.h"
33 #include <sys/mount.h>
35 #include <sys/fsuid.h>
36 #include <sys/personality.h>
37 #include <sys/prctl.h>
38 #include <sys/resource.h>
40 #include <linux/capability.h>
42 #include <sys/timex.h>
43 #include <sys/socket.h>
44 #include <linux/sockios.h>
48 #include <sys/times.h>
51 #include <sys/statfs.h>
53 #include <sys/sysinfo.h>
54 #include <sys/signalfd.h>
55 //#include <sys/user.h>
56 #include <netinet/in.h>
57 #include <netinet/ip.h>
58 #include <netinet/tcp.h>
59 #include <netinet/udp.h>
60 #include <linux/wireless.h>
61 #include <linux/icmp.h>
62 #include <linux/icmpv6.h>
63 #include <linux/if_tun.h>
64 #include <linux/in6.h>
65 #include <linux/errqueue.h>
66 #include <linux/random.h>
68 #include <sys/timerfd.h>
71 #include <sys/eventfd.h>
74 #include <sys/epoll.h>
77 #include "qemu/xattr.h"
79 #ifdef CONFIG_SENDFILE
80 #include <sys/sendfile.h>
82 #ifdef HAVE_SYS_KCOV_H
86 #define termios host_termios
87 #define winsize host_winsize
88 #define termio host_termio
89 #define sgttyb host_sgttyb /* same as target */
90 #define tchars host_tchars /* same as target */
91 #define ltchars host_ltchars /* same as target */
93 #include <linux/termios.h>
94 #include <linux/unistd.h>
95 #include <linux/cdrom.h>
96 #include <linux/hdreg.h>
97 #include <linux/soundcard.h>
99 #include <linux/mtio.h>
100 #include <linux/fs.h>
101 #include <linux/fd.h>
102 #if defined(CONFIG_FIEMAP)
103 #include <linux/fiemap.h>
105 #include <linux/fb.h>
106 #if defined(CONFIG_USBFS)
107 #include <linux/usbdevice_fs.h>
108 #include <linux/usb/ch9.h>
110 #include <linux/vt.h>
111 #include <linux/dm-ioctl.h>
112 #include <linux/reboot.h>
113 #include <linux/route.h>
114 #include <linux/filter.h>
115 #include <linux/blkpg.h>
116 #include <netpacket/packet.h>
117 #include <linux/netlink.h>
118 #include <linux/if_alg.h>
119 #include <linux/rtc.h>
120 #include <sound/asound.h>
122 #include <linux/btrfs.h>
125 #include <libdrm/drm.h>
126 #include <libdrm/i915_drm.h>
128 #include "linux_loop.h"
132 #include "user-internals.h"
134 #include "signal-common.h"
136 #include "user-mmap.h"
137 #include "user/safe-syscall.h"
138 #include "qemu/guest-random.h"
139 #include "qemu/selfmap.h"
140 #include "user/syscall-trace.h"
141 #include "special-errno.h"
142 #include "qapi/error.h"
143 #include "fd-trans.h"
145 #include "cpu_loop-common.h"
148 #define CLONE_IO 0x80000000 /* Clone io context */
151 /* We can't directly call the host clone syscall, because this will
152 * badly confuse libc (breaking mutexes, for example). So we must
153 * divide clone flags into:
154 * * flag combinations that look like pthread_create()
155 * * flag combinations that look like fork()
156 * * flags we can implement within QEMU itself
157 * * flags we can't support and will return an error for
159 /* For thread creation, all these flags must be present; for
160 * fork, none must be present.
162 #define CLONE_THREAD_FLAGS \
163 (CLONE_VM | CLONE_FS | CLONE_FILES | \
164 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
166 /* These flags are ignored:
167 * CLONE_DETACHED is now ignored by the kernel;
168 * CLONE_IO is just an optimisation hint to the I/O scheduler
170 #define CLONE_IGNORED_FLAGS \
171 (CLONE_DETACHED | CLONE_IO)
174 # define CLONE_PIDFD 0x00001000
177 /* Flags for fork which we can implement within QEMU itself */
178 #define CLONE_OPTIONAL_FORK_FLAGS \
179 (CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_PIDFD | \
180 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
182 /* Flags for thread creation which we can implement within QEMU itself */
183 #define CLONE_OPTIONAL_THREAD_FLAGS \
184 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
185 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
187 #define CLONE_INVALID_FORK_FLAGS \
188 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
190 #define CLONE_INVALID_THREAD_FLAGS \
191 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
192 CLONE_IGNORED_FLAGS))
194 /* CLONE_VFORK is special cased early in do_fork(). The other flag bits
195 * have almost all been allocated. We cannot support any of
196 * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
197 * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
198 * The checks against the invalid thread masks above will catch these.
199 * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
202 /* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
203 * once. This exercises the codepaths for restart.
205 //#define DEBUG_ERESTARTSYS
207 //#include <linux/msdos_fs.h>
208 #define VFAT_IOCTL_READDIR_BOTH \
209 _IOC(_IOC_READ, 'r', 1, (sizeof(struct linux_dirent) + 256) * 2)
210 #define VFAT_IOCTL_READDIR_SHORT \
211 _IOC(_IOC_READ, 'r', 2, (sizeof(struct linux_dirent) + 256) * 2)
221 #define _syscall0(type,name) \
222 static type name (void) \
224 return syscall(__NR_##name); \
227 #define _syscall1(type,name,type1,arg1) \
228 static type name (type1 arg1) \
230 return syscall(__NR_##name, arg1); \
233 #define _syscall2(type,name,type1,arg1,type2,arg2) \
234 static type name (type1 arg1,type2 arg2) \
236 return syscall(__NR_##name, arg1, arg2); \
239 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
240 static type name (type1 arg1,type2 arg2,type3 arg3) \
242 return syscall(__NR_##name, arg1, arg2, arg3); \
245 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
246 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
248 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
251 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
253 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
255 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
259 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
260 type5,arg5,type6,arg6) \
261 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
264 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
268 #define __NR_sys_uname __NR_uname
269 #define __NR_sys_getcwd1 __NR_getcwd
270 #define __NR_sys_getdents __NR_getdents
271 #define __NR_sys_getdents64 __NR_getdents64
272 #define __NR_sys_getpriority __NR_getpriority
273 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
274 #define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
275 #define __NR_sys_syslog __NR_syslog
276 #if defined(__NR_futex)
277 # define __NR_sys_futex __NR_futex
279 #if defined(__NR_futex_time64)
280 # define __NR_sys_futex_time64 __NR_futex_time64
282 #define __NR_sys_statx __NR_statx
284 #if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
285 #define __NR__llseek __NR_lseek
288 /* Newer kernel ports have llseek() instead of _llseek() */
289 #if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
290 #define TARGET_NR__llseek TARGET_NR_llseek
293 /* some platforms need to mask more bits than just TARGET_O_NONBLOCK */
294 #ifndef TARGET_O_NONBLOCK_MASK
295 #define TARGET_O_NONBLOCK_MASK TARGET_O_NONBLOCK
298 #define __NR_sys_gettid __NR_gettid
299 _syscall0(int, sys_gettid
)
301 /* For the 64-bit guest on 32-bit host case we must emulate
302 * getdents using getdents64, because otherwise the host
303 * might hand us back more dirent records than we can fit
304 * into the guest buffer after structure format conversion.
305 * Otherwise we emulate getdents with getdents if the host has it.
307 #if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
308 #define EMULATE_GETDENTS_WITH_GETDENTS
311 #if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
312 _syscall3(int, sys_getdents
, unsigned int, fd
, struct linux_dirent
*, dirp
, unsigned int, count
);
314 #if (defined(TARGET_NR_getdents) && \
315 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
316 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
317 _syscall3(int, sys_getdents64
, unsigned int, fd
, struct linux_dirent64
*, dirp
, unsigned int, count
);
319 #if defined(TARGET_NR__llseek) && defined(__NR_llseek)
320 _syscall5(int, _llseek
, unsigned int, fd
, unsigned long, hi
, unsigned long, lo
,
321 loff_t
*, res
, unsigned int, wh
);
323 _syscall3(int, sys_rt_sigqueueinfo
, pid_t
, pid
, int, sig
, siginfo_t
*, uinfo
)
324 _syscall4(int, sys_rt_tgsigqueueinfo
, pid_t
, pid
, pid_t
, tid
, int, sig
,
326 _syscall3(int,sys_syslog
,int,type
,char*,bufp
,int,len
)
327 #ifdef __NR_exit_group
328 _syscall1(int,exit_group
,int,error_code
)
330 #if defined(__NR_close_range) && defined(TARGET_NR_close_range)
331 #define __NR_sys_close_range __NR_close_range
332 _syscall3(int,sys_close_range
,int,first
,int,last
,int,flags
)
333 #ifndef CLOSE_RANGE_CLOEXEC
334 #define CLOSE_RANGE_CLOEXEC (1U << 2)
337 #if defined(__NR_futex)
338 _syscall6(int,sys_futex
,int *,uaddr
,int,op
,int,val
,
339 const struct timespec
*,timeout
,int *,uaddr2
,int,val3
)
341 #if defined(__NR_futex_time64)
342 _syscall6(int,sys_futex_time64
,int *,uaddr
,int,op
,int,val
,
343 const struct timespec
*,timeout
,int *,uaddr2
,int,val3
)
345 #if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
346 _syscall2(int, pidfd_open
, pid_t
, pid
, unsigned int, flags
);
348 #if defined(__NR_pidfd_send_signal) && defined(TARGET_NR_pidfd_send_signal)
349 _syscall4(int, pidfd_send_signal
, int, pidfd
, int, sig
, siginfo_t
*, info
,
350 unsigned int, flags
);
352 #if defined(__NR_pidfd_getfd) && defined(TARGET_NR_pidfd_getfd)
353 _syscall3(int, pidfd_getfd
, int, pidfd
, int, targetfd
, unsigned int, flags
);
355 #define __NR_sys_sched_getaffinity __NR_sched_getaffinity
356 _syscall3(int, sys_sched_getaffinity
, pid_t
, pid
, unsigned int, len
,
357 unsigned long *, user_mask_ptr
);
358 #define __NR_sys_sched_setaffinity __NR_sched_setaffinity
359 _syscall3(int, sys_sched_setaffinity
, pid_t
, pid
, unsigned int, len
,
360 unsigned long *, user_mask_ptr
);
361 /* sched_attr is not defined in glibc */
364 uint32_t sched_policy
;
365 uint64_t sched_flags
;
367 uint32_t sched_priority
;
368 uint64_t sched_runtime
;
369 uint64_t sched_deadline
;
370 uint64_t sched_period
;
371 uint32_t sched_util_min
;
372 uint32_t sched_util_max
;
374 #define __NR_sys_sched_getattr __NR_sched_getattr
375 _syscall4(int, sys_sched_getattr
, pid_t
, pid
, struct sched_attr
*, attr
,
376 unsigned int, size
, unsigned int, flags
);
377 #define __NR_sys_sched_setattr __NR_sched_setattr
378 _syscall3(int, sys_sched_setattr
, pid_t
, pid
, struct sched_attr
*, attr
,
379 unsigned int, flags
);
380 #define __NR_sys_sched_getscheduler __NR_sched_getscheduler
381 _syscall1(int, sys_sched_getscheduler
, pid_t
, pid
);
382 #define __NR_sys_sched_setscheduler __NR_sched_setscheduler
383 _syscall3(int, sys_sched_setscheduler
, pid_t
, pid
, int, policy
,
384 const struct sched_param
*, param
);
385 #define __NR_sys_sched_getparam __NR_sched_getparam
386 _syscall2(int, sys_sched_getparam
, pid_t
, pid
,
387 struct sched_param
*, param
);
388 #define __NR_sys_sched_setparam __NR_sched_setparam
389 _syscall2(int, sys_sched_setparam
, pid_t
, pid
,
390 const struct sched_param
*, param
);
391 #define __NR_sys_getcpu __NR_getcpu
392 _syscall3(int, sys_getcpu
, unsigned *, cpu
, unsigned *, node
, void *, tcache
);
393 _syscall4(int, reboot
, int, magic1
, int, magic2
, unsigned int, cmd
,
395 _syscall2(int, capget
, struct __user_cap_header_struct
*, header
,
396 struct __user_cap_data_struct
*, data
);
397 _syscall2(int, capset
, struct __user_cap_header_struct
*, header
,
398 struct __user_cap_data_struct
*, data
);
399 #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
400 _syscall2(int, ioprio_get
, int, which
, int, who
)
402 #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
403 _syscall3(int, ioprio_set
, int, which
, int, who
, int, ioprio
)
405 #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
406 _syscall3(int, getrandom
, void *, buf
, size_t, buflen
, unsigned int, flags
)
409 #if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
410 _syscall5(int, kcmp
, pid_t
, pid1
, pid_t
, pid2
, int, type
,
411 unsigned long, idx1
, unsigned long, idx2
)
415 * It is assumed that struct statx is architecture independent.
417 #if defined(TARGET_NR_statx) && defined(__NR_statx)
418 _syscall5(int, sys_statx
, int, dirfd
, const char *, pathname
, int, flags
,
419 unsigned int, mask
, struct target_statx
*, statxbuf
)
421 #if defined(TARGET_NR_membarrier) && defined(__NR_membarrier)
422 _syscall2(int, membarrier
, int, cmd
, int, flags
)
425 static const bitmask_transtbl fcntl_flags_tbl
[] = {
426 { TARGET_O_ACCMODE
, TARGET_O_WRONLY
, O_ACCMODE
, O_WRONLY
, },
427 { TARGET_O_ACCMODE
, TARGET_O_RDWR
, O_ACCMODE
, O_RDWR
, },
428 { TARGET_O_CREAT
, TARGET_O_CREAT
, O_CREAT
, O_CREAT
, },
429 { TARGET_O_EXCL
, TARGET_O_EXCL
, O_EXCL
, O_EXCL
, },
430 { TARGET_O_NOCTTY
, TARGET_O_NOCTTY
, O_NOCTTY
, O_NOCTTY
, },
431 { TARGET_O_TRUNC
, TARGET_O_TRUNC
, O_TRUNC
, O_TRUNC
, },
432 { TARGET_O_APPEND
, TARGET_O_APPEND
, O_APPEND
, O_APPEND
, },
433 { TARGET_O_NONBLOCK
, TARGET_O_NONBLOCK
, O_NONBLOCK
, O_NONBLOCK
, },
434 { TARGET_O_SYNC
, TARGET_O_DSYNC
, O_SYNC
, O_DSYNC
, },
435 { TARGET_O_SYNC
, TARGET_O_SYNC
, O_SYNC
, O_SYNC
, },
436 { TARGET_FASYNC
, TARGET_FASYNC
, FASYNC
, FASYNC
, },
437 { TARGET_O_DIRECTORY
, TARGET_O_DIRECTORY
, O_DIRECTORY
, O_DIRECTORY
, },
438 { TARGET_O_NOFOLLOW
, TARGET_O_NOFOLLOW
, O_NOFOLLOW
, O_NOFOLLOW
, },
439 #if defined(O_DIRECT)
440 { TARGET_O_DIRECT
, TARGET_O_DIRECT
, O_DIRECT
, O_DIRECT
, },
442 #if defined(O_NOATIME)
443 { TARGET_O_NOATIME
, TARGET_O_NOATIME
, O_NOATIME
, O_NOATIME
},
445 #if defined(O_CLOEXEC)
446 { TARGET_O_CLOEXEC
, TARGET_O_CLOEXEC
, O_CLOEXEC
, O_CLOEXEC
},
449 { TARGET_O_PATH
, TARGET_O_PATH
, O_PATH
, O_PATH
},
451 #if defined(O_TMPFILE)
452 { TARGET_O_TMPFILE
, TARGET_O_TMPFILE
, O_TMPFILE
, O_TMPFILE
},
454 /* Don't terminate the list prematurely on 64-bit host+guest. */
455 #if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
456 { TARGET_O_LARGEFILE
, TARGET_O_LARGEFILE
, O_LARGEFILE
, O_LARGEFILE
, },
461 _syscall2(int, sys_getcwd1
, char *, buf
, size_t, size
)
463 #if defined(TARGET_NR_utimensat) || defined(TARGET_NR_utimensat_time64)
464 #if defined(__NR_utimensat)
465 #define __NR_sys_utimensat __NR_utimensat
466 _syscall4(int,sys_utimensat
,int,dirfd
,const char *,pathname
,
467 const struct timespec
*,tsp
,int,flags
)
469 static int sys_utimensat(int dirfd
, const char *pathname
,
470 const struct timespec times
[2], int flags
)
476 #endif /* TARGET_NR_utimensat */
478 #ifdef TARGET_NR_renameat2
479 #if defined(__NR_renameat2)
480 #define __NR_sys_renameat2 __NR_renameat2
481 _syscall5(int, sys_renameat2
, int, oldfd
, const char *, old
, int, newfd
,
482 const char *, new, unsigned int, flags
)
484 static int sys_renameat2(int oldfd
, const char *old
,
485 int newfd
, const char *new, int flags
)
488 return renameat(oldfd
, old
, newfd
, new);
494 #endif /* TARGET_NR_renameat2 */
496 #ifdef CONFIG_INOTIFY
497 #include <sys/inotify.h>
499 /* Userspace can usually survive runtime without inotify */
500 #undef TARGET_NR_inotify_init
501 #undef TARGET_NR_inotify_init1
502 #undef TARGET_NR_inotify_add_watch
503 #undef TARGET_NR_inotify_rm_watch
504 #endif /* CONFIG_INOTIFY */
506 #if defined(TARGET_NR_prlimit64)
507 #ifndef __NR_prlimit64
508 # define __NR_prlimit64 -1
510 #define __NR_sys_prlimit64 __NR_prlimit64
511 /* The glibc rlimit structure may not be that used by the underlying syscall */
512 struct host_rlimit64
{
516 _syscall4(int, sys_prlimit64
, pid_t
, pid
, int, resource
,
517 const struct host_rlimit64
*, new_limit
,
518 struct host_rlimit64
*, old_limit
)
522 #if defined(TARGET_NR_timer_create)
523 /* Maximum of 32 active POSIX timers allowed at any one time. */
524 #define GUEST_TIMER_MAX 32
525 static timer_t g_posix_timers
[GUEST_TIMER_MAX
];
526 static int g_posix_timer_allocated
[GUEST_TIMER_MAX
];
528 static inline int next_free_host_timer(void)
531 for (k
= 0; k
< ARRAY_SIZE(g_posix_timer_allocated
); k
++) {
532 if (qatomic_xchg(g_posix_timer_allocated
+ k
, 1) == 0) {
539 static inline void free_host_timer_slot(int id
)
541 qatomic_store_release(g_posix_timer_allocated
+ id
, 0);
545 static inline int host_to_target_errno(int host_errno
)
547 switch (host_errno
) {
548 #define E(X) case X: return TARGET_##X;
549 #include "errnos.c.inc"
556 static inline int target_to_host_errno(int target_errno
)
558 switch (target_errno
) {
559 #define E(X) case TARGET_##X: return X;
560 #include "errnos.c.inc"
567 abi_long
get_errno(abi_long ret
)
570 return -host_to_target_errno(errno
);
575 const char *target_strerror(int err
)
577 if (err
== QEMU_ERESTARTSYS
) {
578 return "To be restarted";
580 if (err
== QEMU_ESIGRETURN
) {
581 return "Successful exit from sigreturn";
584 return strerror(target_to_host_errno(err
));
587 static int check_zeroed_user(abi_long addr
, size_t ksize
, size_t usize
)
591 if (usize
<= ksize
) {
594 for (i
= ksize
; i
< usize
; i
++) {
595 if (get_user_u8(b
, addr
+ i
)) {
596 return -TARGET_EFAULT
;
605 #define safe_syscall0(type, name) \
606 static type safe_##name(void) \
608 return safe_syscall(__NR_##name); \
611 #define safe_syscall1(type, name, type1, arg1) \
612 static type safe_##name(type1 arg1) \
614 return safe_syscall(__NR_##name, arg1); \
617 #define safe_syscall2(type, name, type1, arg1, type2, arg2) \
618 static type safe_##name(type1 arg1, type2 arg2) \
620 return safe_syscall(__NR_##name, arg1, arg2); \
623 #define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
624 static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
626 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
629 #define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
631 static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
633 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
636 #define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
637 type4, arg4, type5, arg5) \
638 static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
641 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
644 #define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
645 type4, arg4, type5, arg5, type6, arg6) \
646 static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
647 type5 arg5, type6 arg6) \
649 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
652 safe_syscall3(ssize_t
, read
, int, fd
, void *, buff
, size_t, count
)
653 safe_syscall3(ssize_t
, write
, int, fd
, const void *, buff
, size_t, count
)
654 safe_syscall4(int, openat
, int, dirfd
, const char *, pathname
, \
655 int, flags
, mode_t
, mode
)
656 #if defined(TARGET_NR_wait4) || defined(TARGET_NR_waitpid)
657 safe_syscall4(pid_t
, wait4
, pid_t
, pid
, int *, status
, int, options
, \
658 struct rusage
*, rusage
)
660 safe_syscall5(int, waitid
, idtype_t
, idtype
, id_t
, id
, siginfo_t
*, infop
, \
661 int, options
, struct rusage
*, rusage
)
662 safe_syscall3(int, execve
, const char *, filename
, char **, argv
, char **, envp
)
663 safe_syscall5(int, execveat
, int, dirfd
, const char *, filename
,
664 char **, argv
, char **, envp
, int, flags
)
665 #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
666 defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
667 safe_syscall6(int, pselect6
, int, nfds
, fd_set
*, readfds
, fd_set
*, writefds
, \
668 fd_set
*, exceptfds
, struct timespec
*, timeout
, void *, sig
)
670 #if defined(TARGET_NR_ppoll) || defined(TARGET_NR_ppoll_time64)
671 safe_syscall5(int, ppoll
, struct pollfd
*, ufds
, unsigned int, nfds
,
672 struct timespec
*, tsp
, const sigset_t
*, sigmask
,
675 safe_syscall6(int, epoll_pwait
, int, epfd
, struct epoll_event
*, events
,
676 int, maxevents
, int, timeout
, const sigset_t
*, sigmask
,
678 #if defined(__NR_futex)
679 safe_syscall6(int,futex
,int *,uaddr
,int,op
,int,val
, \
680 const struct timespec
*,timeout
,int *,uaddr2
,int,val3
)
682 #if defined(__NR_futex_time64)
683 safe_syscall6(int,futex_time64
,int *,uaddr
,int,op
,int,val
, \
684 const struct timespec
*,timeout
,int *,uaddr2
,int,val3
)
686 safe_syscall2(int, rt_sigsuspend
, sigset_t
*, newset
, size_t, sigsetsize
)
687 safe_syscall2(int, kill
, pid_t
, pid
, int, sig
)
688 safe_syscall2(int, tkill
, int, tid
, int, sig
)
689 safe_syscall3(int, tgkill
, int, tgid
, int, pid
, int, sig
)
690 safe_syscall3(ssize_t
, readv
, int, fd
, const struct iovec
*, iov
, int, iovcnt
)
691 safe_syscall3(ssize_t
, writev
, int, fd
, const struct iovec
*, iov
, int, iovcnt
)
692 safe_syscall5(ssize_t
, preadv
, int, fd
, const struct iovec
*, iov
, int, iovcnt
,
693 unsigned long, pos_l
, unsigned long, pos_h
)
694 safe_syscall5(ssize_t
, pwritev
, int, fd
, const struct iovec
*, iov
, int, iovcnt
,
695 unsigned long, pos_l
, unsigned long, pos_h
)
696 safe_syscall3(int, connect
, int, fd
, const struct sockaddr
*, addr
,
698 safe_syscall6(ssize_t
, sendto
, int, fd
, const void *, buf
, size_t, len
,
699 int, flags
, const struct sockaddr
*, addr
, socklen_t
, addrlen
)
700 safe_syscall6(ssize_t
, recvfrom
, int, fd
, void *, buf
, size_t, len
,
701 int, flags
, struct sockaddr
*, addr
, socklen_t
*, addrlen
)
702 safe_syscall3(ssize_t
, sendmsg
, int, fd
, const struct msghdr
*, msg
, int, flags
)
703 safe_syscall3(ssize_t
, recvmsg
, int, fd
, struct msghdr
*, msg
, int, flags
)
704 safe_syscall2(int, flock
, int, fd
, int, operation
)
705 #if defined(TARGET_NR_rt_sigtimedwait) || defined(TARGET_NR_rt_sigtimedwait_time64)
706 safe_syscall4(int, rt_sigtimedwait
, const sigset_t
*, these
, siginfo_t
*, uinfo
,
707 const struct timespec
*, uts
, size_t, sigsetsize
)
709 safe_syscall4(int, accept4
, int, fd
, struct sockaddr
*, addr
, socklen_t
*, len
,
711 #if defined(TARGET_NR_nanosleep)
712 safe_syscall2(int, nanosleep
, const struct timespec
*, req
,
713 struct timespec
*, rem
)
715 #if defined(TARGET_NR_clock_nanosleep) || \
716 defined(TARGET_NR_clock_nanosleep_time64)
717 safe_syscall4(int, clock_nanosleep
, const clockid_t
, clock
, int, flags
,
718 const struct timespec
*, req
, struct timespec
*, rem
)
722 safe_syscall5(int, ipc
, int, call
, long, first
, long, second
, long, third
,
725 safe_syscall6(int, ipc
, int, call
, long, first
, long, second
, long, third
,
726 void *, ptr
, long, fifth
)
730 safe_syscall4(int, msgsnd
, int, msgid
, const void *, msgp
, size_t, sz
,
734 safe_syscall5(int, msgrcv
, int, msgid
, void *, msgp
, size_t, sz
,
735 long, msgtype
, int, flags
)
737 #ifdef __NR_semtimedop
738 safe_syscall4(int, semtimedop
, int, semid
, struct sembuf
*, tsops
,
739 unsigned, nsops
, const struct timespec
*, timeout
)
741 #if defined(TARGET_NR_mq_timedsend) || \
742 defined(TARGET_NR_mq_timedsend_time64)
743 safe_syscall5(int, mq_timedsend
, int, mqdes
, const char *, msg_ptr
,
744 size_t, len
, unsigned, prio
, const struct timespec
*, timeout
)
746 #if defined(TARGET_NR_mq_timedreceive) || \
747 defined(TARGET_NR_mq_timedreceive_time64)
748 safe_syscall5(int, mq_timedreceive
, int, mqdes
, char *, msg_ptr
,
749 size_t, len
, unsigned *, prio
, const struct timespec
*, timeout
)
751 #if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
752 safe_syscall6(ssize_t
, copy_file_range
, int, infd
, loff_t
*, pinoff
,
753 int, outfd
, loff_t
*, poutoff
, size_t, length
,
757 /* We do ioctl like this rather than via safe_syscall3 to preserve the
758 * "third argument might be integer or pointer or not present" behaviour of
761 #define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
762 /* Similarly for fcntl. Note that callers must always:
763 * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
764 * use the flock64 struct rather than unsuffixed flock
765 * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
768 #define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
770 #define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
773 static inline int host_to_target_sock_type(int host_type
)
777 switch (host_type
& 0xf /* SOCK_TYPE_MASK */) {
779 target_type
= TARGET_SOCK_DGRAM
;
782 target_type
= TARGET_SOCK_STREAM
;
785 target_type
= host_type
& 0xf /* SOCK_TYPE_MASK */;
789 #if defined(SOCK_CLOEXEC)
790 if (host_type
& SOCK_CLOEXEC
) {
791 target_type
|= TARGET_SOCK_CLOEXEC
;
795 #if defined(SOCK_NONBLOCK)
796 if (host_type
& SOCK_NONBLOCK
) {
797 target_type
|= TARGET_SOCK_NONBLOCK
;
804 static abi_ulong target_brk
, initial_target_brk
;
805 static abi_ulong brk_page
;
807 void target_set_brk(abi_ulong new_brk
)
809 target_brk
= TARGET_PAGE_ALIGN(new_brk
);
810 initial_target_brk
= target_brk
;
811 brk_page
= HOST_PAGE_ALIGN(target_brk
);
814 /* do_brk() must return target values and target errnos. */
815 abi_long
do_brk(abi_ulong brk_val
)
817 abi_long mapped_addr
;
818 abi_ulong new_alloc_size
;
819 abi_ulong new_brk
, new_host_brk_page
;
821 /* brk pointers are always untagged */
823 /* return old brk value if brk_val unchanged or zero */
824 if (!brk_val
|| brk_val
== target_brk
) {
828 /* do not allow to shrink below initial brk value */
829 if (brk_val
< initial_target_brk
) {
830 brk_val
= initial_target_brk
;
833 new_brk
= TARGET_PAGE_ALIGN(brk_val
);
834 new_host_brk_page
= HOST_PAGE_ALIGN(brk_val
);
836 /* brk_val and old target_brk might be on the same page */
837 if (new_brk
== TARGET_PAGE_ALIGN(target_brk
)) {
838 /* empty remaining bytes in (possibly larger) host page */
839 memset(g2h_untagged(new_brk
), 0, new_host_brk_page
- new_brk
);
840 target_brk
= brk_val
;
844 /* Release heap if necesary */
845 if (new_brk
< target_brk
) {
846 /* empty remaining bytes in (possibly larger) host page */
847 memset(g2h_untagged(new_brk
), 0, new_host_brk_page
- new_brk
);
849 /* free unused host pages and set new brk_page */
850 target_munmap(new_host_brk_page
, brk_page
- new_host_brk_page
);
851 brk_page
= new_host_brk_page
;
853 target_brk
= brk_val
;
857 /* We need to allocate more memory after the brk... Note that
858 * we don't use MAP_FIXED because that will map over the top of
859 * any existing mapping (like the one with the host libc or qemu
860 * itself); instead we treat "mapped but at wrong address" as
861 * a failure and unmap again.
863 if (new_host_brk_page
> brk_page
) {
864 new_alloc_size
= new_host_brk_page
- brk_page
;
865 mapped_addr
= get_errno(target_mmap(brk_page
, new_alloc_size
,
866 PROT_READ
|PROT_WRITE
,
867 MAP_ANON
|MAP_PRIVATE
, 0, 0));
870 mapped_addr
= brk_page
;
873 if (mapped_addr
== brk_page
) {
874 /* Heap contents are initialized to zero, as for anonymous
875 * mapped pages. Technically the new pages are already
876 * initialized to zero since they *are* anonymous mapped
877 * pages, however we have to take care with the contents that
878 * come from the remaining part of the previous page: it may
879 * contains garbage data due to a previous heap usage (grown
881 memset(g2h_untagged(brk_page
), 0, HOST_PAGE_ALIGN(brk_page
) - brk_page
);
883 target_brk
= brk_val
;
884 brk_page
= new_host_brk_page
;
886 } else if (mapped_addr
!= -1) {
887 /* Mapped but at wrong address, meaning there wasn't actually
888 * enough space for this brk.
890 target_munmap(mapped_addr
, new_alloc_size
);
894 #if defined(TARGET_ALPHA)
895 /* We (partially) emulate OSF/1 on Alpha, which requires we
896 return a proper errno, not an unchanged brk value. */
897 return -TARGET_ENOMEM
;
899 /* For everything else, return the previous break. */
903 #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
904 defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
905 static inline abi_long
copy_from_user_fdset(fd_set
*fds
,
906 abi_ulong target_fds_addr
,
910 abi_ulong b
, *target_fds
;
912 nw
= DIV_ROUND_UP(n
, TARGET_ABI_BITS
);
913 if (!(target_fds
= lock_user(VERIFY_READ
,
915 sizeof(abi_ulong
) * nw
,
917 return -TARGET_EFAULT
;
921 for (i
= 0; i
< nw
; i
++) {
922 /* grab the abi_ulong */
923 __get_user(b
, &target_fds
[i
]);
924 for (j
= 0; j
< TARGET_ABI_BITS
; j
++) {
925 /* check the bit inside the abi_ulong */
932 unlock_user(target_fds
, target_fds_addr
, 0);
937 static inline abi_ulong
copy_from_user_fdset_ptr(fd_set
*fds
, fd_set
**fds_ptr
,
938 abi_ulong target_fds_addr
,
941 if (target_fds_addr
) {
942 if (copy_from_user_fdset(fds
, target_fds_addr
, n
))
943 return -TARGET_EFAULT
;
951 static inline abi_long
copy_to_user_fdset(abi_ulong target_fds_addr
,
957 abi_ulong
*target_fds
;
959 nw
= DIV_ROUND_UP(n
, TARGET_ABI_BITS
);
960 if (!(target_fds
= lock_user(VERIFY_WRITE
,
962 sizeof(abi_ulong
) * nw
,
964 return -TARGET_EFAULT
;
967 for (i
= 0; i
< nw
; i
++) {
969 for (j
= 0; j
< TARGET_ABI_BITS
; j
++) {
970 v
|= ((abi_ulong
)(FD_ISSET(k
, fds
) != 0) << j
);
973 __put_user(v
, &target_fds
[i
]);
976 unlock_user(target_fds
, target_fds_addr
, sizeof(abi_ulong
) * nw
);
982 #if defined(__alpha__)
988 static inline abi_long
host_to_target_clock_t(long ticks
)
990 #if HOST_HZ == TARGET_HZ
993 return ((int64_t)ticks
* TARGET_HZ
) / HOST_HZ
;
997 static inline abi_long
host_to_target_rusage(abi_ulong target_addr
,
998 const struct rusage
*rusage
)
1000 struct target_rusage
*target_rusage
;
1002 if (!lock_user_struct(VERIFY_WRITE
, target_rusage
, target_addr
, 0))
1003 return -TARGET_EFAULT
;
1004 target_rusage
->ru_utime
.tv_sec
= tswapal(rusage
->ru_utime
.tv_sec
);
1005 target_rusage
->ru_utime
.tv_usec
= tswapal(rusage
->ru_utime
.tv_usec
);
1006 target_rusage
->ru_stime
.tv_sec
= tswapal(rusage
->ru_stime
.tv_sec
);
1007 target_rusage
->ru_stime
.tv_usec
= tswapal(rusage
->ru_stime
.tv_usec
);
1008 target_rusage
->ru_maxrss
= tswapal(rusage
->ru_maxrss
);
1009 target_rusage
->ru_ixrss
= tswapal(rusage
->ru_ixrss
);
1010 target_rusage
->ru_idrss
= tswapal(rusage
->ru_idrss
);
1011 target_rusage
->ru_isrss
= tswapal(rusage
->ru_isrss
);
1012 target_rusage
->ru_minflt
= tswapal(rusage
->ru_minflt
);
1013 target_rusage
->ru_majflt
= tswapal(rusage
->ru_majflt
);
1014 target_rusage
->ru_nswap
= tswapal(rusage
->ru_nswap
);
1015 target_rusage
->ru_inblock
= tswapal(rusage
->ru_inblock
);
1016 target_rusage
->ru_oublock
= tswapal(rusage
->ru_oublock
);
1017 target_rusage
->ru_msgsnd
= tswapal(rusage
->ru_msgsnd
);
1018 target_rusage
->ru_msgrcv
= tswapal(rusage
->ru_msgrcv
);
1019 target_rusage
->ru_nsignals
= tswapal(rusage
->ru_nsignals
);
1020 target_rusage
->ru_nvcsw
= tswapal(rusage
->ru_nvcsw
);
1021 target_rusage
->ru_nivcsw
= tswapal(rusage
->ru_nivcsw
);
1022 unlock_user_struct(target_rusage
, target_addr
, 1);
1027 #ifdef TARGET_NR_setrlimit
1028 static inline rlim_t
target_to_host_rlim(abi_ulong target_rlim
)
1030 abi_ulong target_rlim_swap
;
1033 target_rlim_swap
= tswapal(target_rlim
);
1034 if (target_rlim_swap
== TARGET_RLIM_INFINITY
)
1035 return RLIM_INFINITY
;
1037 result
= target_rlim_swap
;
1038 if (target_rlim_swap
!= (rlim_t
)result
)
1039 return RLIM_INFINITY
;
1045 #if defined(TARGET_NR_getrlimit) || defined(TARGET_NR_ugetrlimit)
1046 static inline abi_ulong
host_to_target_rlim(rlim_t rlim
)
1048 abi_ulong target_rlim_swap
;
1051 if (rlim
== RLIM_INFINITY
|| rlim
!= (abi_long
)rlim
)
1052 target_rlim_swap
= TARGET_RLIM_INFINITY
;
1054 target_rlim_swap
= rlim
;
1055 result
= tswapal(target_rlim_swap
);
1061 static inline int target_to_host_resource(int code
)
1064 case TARGET_RLIMIT_AS
:
1066 case TARGET_RLIMIT_CORE
:
1068 case TARGET_RLIMIT_CPU
:
1070 case TARGET_RLIMIT_DATA
:
1072 case TARGET_RLIMIT_FSIZE
:
1073 return RLIMIT_FSIZE
;
1074 case TARGET_RLIMIT_LOCKS
:
1075 return RLIMIT_LOCKS
;
1076 case TARGET_RLIMIT_MEMLOCK
:
1077 return RLIMIT_MEMLOCK
;
1078 case TARGET_RLIMIT_MSGQUEUE
:
1079 return RLIMIT_MSGQUEUE
;
1080 case TARGET_RLIMIT_NICE
:
1082 case TARGET_RLIMIT_NOFILE
:
1083 return RLIMIT_NOFILE
;
1084 case TARGET_RLIMIT_NPROC
:
1085 return RLIMIT_NPROC
;
1086 case TARGET_RLIMIT_RSS
:
1088 case TARGET_RLIMIT_RTPRIO
:
1089 return RLIMIT_RTPRIO
;
1090 #ifdef RLIMIT_RTTIME
1091 case TARGET_RLIMIT_RTTIME
:
1092 return RLIMIT_RTTIME
;
1094 case TARGET_RLIMIT_SIGPENDING
:
1095 return RLIMIT_SIGPENDING
;
1096 case TARGET_RLIMIT_STACK
:
1097 return RLIMIT_STACK
;
1103 static inline abi_long
copy_from_user_timeval(struct timeval
*tv
,
1104 abi_ulong target_tv_addr
)
1106 struct target_timeval
*target_tv
;
1108 if (!lock_user_struct(VERIFY_READ
, target_tv
, target_tv_addr
, 1)) {
1109 return -TARGET_EFAULT
;
1112 __get_user(tv
->tv_sec
, &target_tv
->tv_sec
);
1113 __get_user(tv
->tv_usec
, &target_tv
->tv_usec
);
1115 unlock_user_struct(target_tv
, target_tv_addr
, 0);
1120 static inline abi_long
copy_to_user_timeval(abi_ulong target_tv_addr
,
1121 const struct timeval
*tv
)
1123 struct target_timeval
*target_tv
;
1125 if (!lock_user_struct(VERIFY_WRITE
, target_tv
, target_tv_addr
, 0)) {
1126 return -TARGET_EFAULT
;
1129 __put_user(tv
->tv_sec
, &target_tv
->tv_sec
);
1130 __put_user(tv
->tv_usec
, &target_tv
->tv_usec
);
1132 unlock_user_struct(target_tv
, target_tv_addr
, 1);
1137 #if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
1138 static inline abi_long
copy_from_user_timeval64(struct timeval
*tv
,
1139 abi_ulong target_tv_addr
)
1141 struct target__kernel_sock_timeval
*target_tv
;
1143 if (!lock_user_struct(VERIFY_READ
, target_tv
, target_tv_addr
, 1)) {
1144 return -TARGET_EFAULT
;
1147 __get_user(tv
->tv_sec
, &target_tv
->tv_sec
);
1148 __get_user(tv
->tv_usec
, &target_tv
->tv_usec
);
1150 unlock_user_struct(target_tv
, target_tv_addr
, 0);
1156 static inline abi_long
copy_to_user_timeval64(abi_ulong target_tv_addr
,
1157 const struct timeval
*tv
)
1159 struct target__kernel_sock_timeval
*target_tv
;
1161 if (!lock_user_struct(VERIFY_WRITE
, target_tv
, target_tv_addr
, 0)) {
1162 return -TARGET_EFAULT
;
1165 __put_user(tv
->tv_sec
, &target_tv
->tv_sec
);
1166 __put_user(tv
->tv_usec
, &target_tv
->tv_usec
);
1168 unlock_user_struct(target_tv
, target_tv_addr
, 1);
1173 #if defined(TARGET_NR_futex) || \
1174 defined(TARGET_NR_rt_sigtimedwait) || \
1175 defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6) || \
1176 defined(TARGET_NR_nanosleep) || defined(TARGET_NR_clock_settime) || \
1177 defined(TARGET_NR_utimensat) || defined(TARGET_NR_mq_timedsend) || \
1178 defined(TARGET_NR_mq_timedreceive) || defined(TARGET_NR_ipc) || \
1179 defined(TARGET_NR_semop) || defined(TARGET_NR_semtimedop) || \
1180 defined(TARGET_NR_timer_settime) || \
1181 (defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
1182 static inline abi_long
target_to_host_timespec(struct timespec
*host_ts
,
1183 abi_ulong target_addr
)
1185 struct target_timespec
*target_ts
;
1187 if (!lock_user_struct(VERIFY_READ
, target_ts
, target_addr
, 1)) {
1188 return -TARGET_EFAULT
;
1190 __get_user(host_ts
->tv_sec
, &target_ts
->tv_sec
);
1191 __get_user(host_ts
->tv_nsec
, &target_ts
->tv_nsec
);
1192 unlock_user_struct(target_ts
, target_addr
, 0);
1197 #if defined(TARGET_NR_clock_settime64) || defined(TARGET_NR_futex_time64) || \
1198 defined(TARGET_NR_timer_settime64) || \
1199 defined(TARGET_NR_mq_timedsend_time64) || \
1200 defined(TARGET_NR_mq_timedreceive_time64) || \
1201 (defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)) || \
1202 defined(TARGET_NR_clock_nanosleep_time64) || \
1203 defined(TARGET_NR_rt_sigtimedwait_time64) || \
1204 defined(TARGET_NR_utimensat) || \
1205 defined(TARGET_NR_utimensat_time64) || \
1206 defined(TARGET_NR_semtimedop_time64) || \
1207 defined(TARGET_NR_pselect6_time64) || defined(TARGET_NR_ppoll_time64)
1208 static inline abi_long
target_to_host_timespec64(struct timespec
*host_ts
,
1209 abi_ulong target_addr
)
1211 struct target__kernel_timespec
*target_ts
;
1213 if (!lock_user_struct(VERIFY_READ
, target_ts
, target_addr
, 1)) {
1214 return -TARGET_EFAULT
;
1216 __get_user(host_ts
->tv_sec
, &target_ts
->tv_sec
);
1217 __get_user(host_ts
->tv_nsec
, &target_ts
->tv_nsec
);
1218 /* in 32bit mode, this drops the padding */
1219 host_ts
->tv_nsec
= (long)(abi_long
)host_ts
->tv_nsec
;
1220 unlock_user_struct(target_ts
, target_addr
, 0);
1225 static inline abi_long
host_to_target_timespec(abi_ulong target_addr
,
1226 struct timespec
*host_ts
)
1228 struct target_timespec
*target_ts
;
1230 if (!lock_user_struct(VERIFY_WRITE
, target_ts
, target_addr
, 0)) {
1231 return -TARGET_EFAULT
;
1233 __put_user(host_ts
->tv_sec
, &target_ts
->tv_sec
);
1234 __put_user(host_ts
->tv_nsec
, &target_ts
->tv_nsec
);
1235 unlock_user_struct(target_ts
, target_addr
, 1);
1239 static inline abi_long
host_to_target_timespec64(abi_ulong target_addr
,
1240 struct timespec
*host_ts
)
1242 struct target__kernel_timespec
*target_ts
;
1244 if (!lock_user_struct(VERIFY_WRITE
, target_ts
, target_addr
, 0)) {
1245 return -TARGET_EFAULT
;
1247 __put_user(host_ts
->tv_sec
, &target_ts
->tv_sec
);
1248 __put_user(host_ts
->tv_nsec
, &target_ts
->tv_nsec
);
1249 unlock_user_struct(target_ts
, target_addr
, 1);
1253 #if defined(TARGET_NR_gettimeofday)
1254 static inline abi_long
copy_to_user_timezone(abi_ulong target_tz_addr
,
1255 struct timezone
*tz
)
1257 struct target_timezone
*target_tz
;
1259 if (!lock_user_struct(VERIFY_WRITE
, target_tz
, target_tz_addr
, 1)) {
1260 return -TARGET_EFAULT
;
1263 __put_user(tz
->tz_minuteswest
, &target_tz
->tz_minuteswest
);
1264 __put_user(tz
->tz_dsttime
, &target_tz
->tz_dsttime
);
1266 unlock_user_struct(target_tz
, target_tz_addr
, 1);
1272 #if defined(TARGET_NR_settimeofday)
1273 static inline abi_long
copy_from_user_timezone(struct timezone
*tz
,
1274 abi_ulong target_tz_addr
)
1276 struct target_timezone
*target_tz
;
1278 if (!lock_user_struct(VERIFY_READ
, target_tz
, target_tz_addr
, 1)) {
1279 return -TARGET_EFAULT
;
1282 __get_user(tz
->tz_minuteswest
, &target_tz
->tz_minuteswest
);
1283 __get_user(tz
->tz_dsttime
, &target_tz
->tz_dsttime
);
1285 unlock_user_struct(target_tz
, target_tz_addr
, 0);
1291 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1294 static inline abi_long
copy_from_user_mq_attr(struct mq_attr
*attr
,
1295 abi_ulong target_mq_attr_addr
)
1297 struct target_mq_attr
*target_mq_attr
;
1299 if (!lock_user_struct(VERIFY_READ
, target_mq_attr
,
1300 target_mq_attr_addr
, 1))
1301 return -TARGET_EFAULT
;
1303 __get_user(attr
->mq_flags
, &target_mq_attr
->mq_flags
);
1304 __get_user(attr
->mq_maxmsg
, &target_mq_attr
->mq_maxmsg
);
1305 __get_user(attr
->mq_msgsize
, &target_mq_attr
->mq_msgsize
);
1306 __get_user(attr
->mq_curmsgs
, &target_mq_attr
->mq_curmsgs
);
1308 unlock_user_struct(target_mq_attr
, target_mq_attr_addr
, 0);
1313 static inline abi_long
copy_to_user_mq_attr(abi_ulong target_mq_attr_addr
,
1314 const struct mq_attr
*attr
)
1316 struct target_mq_attr
*target_mq_attr
;
1318 if (!lock_user_struct(VERIFY_WRITE
, target_mq_attr
,
1319 target_mq_attr_addr
, 0))
1320 return -TARGET_EFAULT
;
1322 __put_user(attr
->mq_flags
, &target_mq_attr
->mq_flags
);
1323 __put_user(attr
->mq_maxmsg
, &target_mq_attr
->mq_maxmsg
);
1324 __put_user(attr
->mq_msgsize
, &target_mq_attr
->mq_msgsize
);
1325 __put_user(attr
->mq_curmsgs
, &target_mq_attr
->mq_curmsgs
);
1327 unlock_user_struct(target_mq_attr
, target_mq_attr_addr
, 1);
1333 #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
1334 /* do_select() must return target values and target errnos. */
1335 static abi_long
do_select(int n
,
1336 abi_ulong rfd_addr
, abi_ulong wfd_addr
,
1337 abi_ulong efd_addr
, abi_ulong target_tv_addr
)
1339 fd_set rfds
, wfds
, efds
;
1340 fd_set
*rfds_ptr
, *wfds_ptr
, *efds_ptr
;
1342 struct timespec ts
, *ts_ptr
;
1345 ret
= copy_from_user_fdset_ptr(&rfds
, &rfds_ptr
, rfd_addr
, n
);
1349 ret
= copy_from_user_fdset_ptr(&wfds
, &wfds_ptr
, wfd_addr
, n
);
1353 ret
= copy_from_user_fdset_ptr(&efds
, &efds_ptr
, efd_addr
, n
);
1358 if (target_tv_addr
) {
1359 if (copy_from_user_timeval(&tv
, target_tv_addr
))
1360 return -TARGET_EFAULT
;
1361 ts
.tv_sec
= tv
.tv_sec
;
1362 ts
.tv_nsec
= tv
.tv_usec
* 1000;
1368 ret
= get_errno(safe_pselect6(n
, rfds_ptr
, wfds_ptr
, efds_ptr
,
1371 if (!is_error(ret
)) {
1372 if (rfd_addr
&& copy_to_user_fdset(rfd_addr
, &rfds
, n
))
1373 return -TARGET_EFAULT
;
1374 if (wfd_addr
&& copy_to_user_fdset(wfd_addr
, &wfds
, n
))
1375 return -TARGET_EFAULT
;
1376 if (efd_addr
&& copy_to_user_fdset(efd_addr
, &efds
, n
))
1377 return -TARGET_EFAULT
;
1379 if (target_tv_addr
) {
1380 tv
.tv_sec
= ts
.tv_sec
;
1381 tv
.tv_usec
= ts
.tv_nsec
/ 1000;
1382 if (copy_to_user_timeval(target_tv_addr
, &tv
)) {
1383 return -TARGET_EFAULT
;
1391 #if defined(TARGET_WANT_OLD_SYS_SELECT)
1392 static abi_long
do_old_select(abi_ulong arg1
)
1394 struct target_sel_arg_struct
*sel
;
1395 abi_ulong inp
, outp
, exp
, tvp
;
1398 if (!lock_user_struct(VERIFY_READ
, sel
, arg1
, 1)) {
1399 return -TARGET_EFAULT
;
1402 nsel
= tswapal(sel
->n
);
1403 inp
= tswapal(sel
->inp
);
1404 outp
= tswapal(sel
->outp
);
1405 exp
= tswapal(sel
->exp
);
1406 tvp
= tswapal(sel
->tvp
);
1408 unlock_user_struct(sel
, arg1
, 0);
1410 return do_select(nsel
, inp
, outp
, exp
, tvp
);
1415 #if defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
1416 static abi_long
do_pselect6(abi_long arg1
, abi_long arg2
, abi_long arg3
,
1417 abi_long arg4
, abi_long arg5
, abi_long arg6
,
1420 abi_long rfd_addr
, wfd_addr
, efd_addr
, n
, ts_addr
;
1421 fd_set rfds
, wfds
, efds
;
1422 fd_set
*rfds_ptr
, *wfds_ptr
, *efds_ptr
;
1423 struct timespec ts
, *ts_ptr
;
1427 * The 6th arg is actually two args smashed together,
1428 * so we cannot use the C library.
1435 abi_ulong arg_sigset
, arg_sigsize
, *arg7
;
1443 ret
= copy_from_user_fdset_ptr(&rfds
, &rfds_ptr
, rfd_addr
, n
);
1447 ret
= copy_from_user_fdset_ptr(&wfds
, &wfds_ptr
, wfd_addr
, n
);
1451 ret
= copy_from_user_fdset_ptr(&efds
, &efds_ptr
, efd_addr
, n
);
1457 * This takes a timespec, and not a timeval, so we cannot
1458 * use the do_select() helper ...
1462 if (target_to_host_timespec64(&ts
, ts_addr
)) {
1463 return -TARGET_EFAULT
;
1466 if (target_to_host_timespec(&ts
, ts_addr
)) {
1467 return -TARGET_EFAULT
;
1475 /* Extract the two packed args for the sigset */
1478 arg7
= lock_user(VERIFY_READ
, arg6
, sizeof(*arg7
) * 2, 1);
1480 return -TARGET_EFAULT
;
1482 arg_sigset
= tswapal(arg7
[0]);
1483 arg_sigsize
= tswapal(arg7
[1]);
1484 unlock_user(arg7
, arg6
, 0);
1487 ret
= process_sigsuspend_mask(&sig
.set
, arg_sigset
, arg_sigsize
);
1492 sig
.size
= SIGSET_T_SIZE
;
1496 ret
= get_errno(safe_pselect6(n
, rfds_ptr
, wfds_ptr
, efds_ptr
,
1500 finish_sigsuspend_mask(ret
);
1503 if (!is_error(ret
)) {
1504 if (rfd_addr
&& copy_to_user_fdset(rfd_addr
, &rfds
, n
)) {
1505 return -TARGET_EFAULT
;
1507 if (wfd_addr
&& copy_to_user_fdset(wfd_addr
, &wfds
, n
)) {
1508 return -TARGET_EFAULT
;
1510 if (efd_addr
&& copy_to_user_fdset(efd_addr
, &efds
, n
)) {
1511 return -TARGET_EFAULT
;
1514 if (ts_addr
&& host_to_target_timespec64(ts_addr
, &ts
)) {
1515 return -TARGET_EFAULT
;
1518 if (ts_addr
&& host_to_target_timespec(ts_addr
, &ts
)) {
1519 return -TARGET_EFAULT
;
1527 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) || \
1528 defined(TARGET_NR_ppoll_time64)
1529 static abi_long
do_ppoll(abi_long arg1
, abi_long arg2
, abi_long arg3
,
1530 abi_long arg4
, abi_long arg5
, bool ppoll
, bool time64
)
1532 struct target_pollfd
*target_pfd
;
1533 unsigned int nfds
= arg2
;
1541 if (nfds
> (INT_MAX
/ sizeof(struct target_pollfd
))) {
1542 return -TARGET_EINVAL
;
1544 target_pfd
= lock_user(VERIFY_WRITE
, arg1
,
1545 sizeof(struct target_pollfd
) * nfds
, 1);
1547 return -TARGET_EFAULT
;
1550 pfd
= alloca(sizeof(struct pollfd
) * nfds
);
1551 for (i
= 0; i
< nfds
; i
++) {
1552 pfd
[i
].fd
= tswap32(target_pfd
[i
].fd
);
1553 pfd
[i
].events
= tswap16(target_pfd
[i
].events
);
1557 struct timespec _timeout_ts
, *timeout_ts
= &_timeout_ts
;
1558 sigset_t
*set
= NULL
;
1562 if (target_to_host_timespec64(timeout_ts
, arg3
)) {
1563 unlock_user(target_pfd
, arg1
, 0);
1564 return -TARGET_EFAULT
;
1567 if (target_to_host_timespec(timeout_ts
, arg3
)) {
1568 unlock_user(target_pfd
, arg1
, 0);
1569 return -TARGET_EFAULT
;
1577 ret
= process_sigsuspend_mask(&set
, arg4
, arg5
);
1579 unlock_user(target_pfd
, arg1
, 0);
1584 ret
= get_errno(safe_ppoll(pfd
, nfds
, timeout_ts
,
1585 set
, SIGSET_T_SIZE
));
1588 finish_sigsuspend_mask(ret
);
1590 if (!is_error(ret
) && arg3
) {
1592 if (host_to_target_timespec64(arg3
, timeout_ts
)) {
1593 return -TARGET_EFAULT
;
1596 if (host_to_target_timespec(arg3
, timeout_ts
)) {
1597 return -TARGET_EFAULT
;
1602 struct timespec ts
, *pts
;
1605 /* Convert ms to secs, ns */
1606 ts
.tv_sec
= arg3
/ 1000;
1607 ts
.tv_nsec
= (arg3
% 1000) * 1000000LL;
1610 /* -ve poll() timeout means "infinite" */
1613 ret
= get_errno(safe_ppoll(pfd
, nfds
, pts
, NULL
, 0));
1616 if (!is_error(ret
)) {
1617 for (i
= 0; i
< nfds
; i
++) {
1618 target_pfd
[i
].revents
= tswap16(pfd
[i
].revents
);
1621 unlock_user(target_pfd
, arg1
, sizeof(struct target_pollfd
) * nfds
);
1626 static abi_long
do_pipe(CPUArchState
*cpu_env
, abi_ulong pipedes
,
1627 int flags
, int is_pipe2
)
1631 ret
= pipe2(host_pipe
, flags
);
1634 return get_errno(ret
);
1636 /* Several targets have special calling conventions for the original
1637 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1639 #if defined(TARGET_ALPHA)
1640 cpu_env
->ir
[IR_A4
] = host_pipe
[1];
1641 return host_pipe
[0];
1642 #elif defined(TARGET_MIPS)
1643 cpu_env
->active_tc
.gpr
[3] = host_pipe
[1];
1644 return host_pipe
[0];
1645 #elif defined(TARGET_SH4)
1646 cpu_env
->gregs
[1] = host_pipe
[1];
1647 return host_pipe
[0];
1648 #elif defined(TARGET_SPARC)
1649 cpu_env
->regwptr
[1] = host_pipe
[1];
1650 return host_pipe
[0];
1654 if (put_user_s32(host_pipe
[0], pipedes
)
1655 || put_user_s32(host_pipe
[1], pipedes
+ sizeof(abi_int
)))
1656 return -TARGET_EFAULT
;
1657 return get_errno(ret
);
1660 static inline abi_long
target_to_host_ip_mreq(struct ip_mreqn
*mreqn
,
1661 abi_ulong target_addr
,
1664 struct target_ip_mreqn
*target_smreqn
;
1666 target_smreqn
= lock_user(VERIFY_READ
, target_addr
, len
, 1);
1668 return -TARGET_EFAULT
;
1669 mreqn
->imr_multiaddr
.s_addr
= target_smreqn
->imr_multiaddr
.s_addr
;
1670 mreqn
->imr_address
.s_addr
= target_smreqn
->imr_address
.s_addr
;
1671 if (len
== sizeof(struct target_ip_mreqn
))
1672 mreqn
->imr_ifindex
= tswapal(target_smreqn
->imr_ifindex
);
1673 unlock_user(target_smreqn
, target_addr
, 0);
1678 static inline abi_long
target_to_host_sockaddr(int fd
, struct sockaddr
*addr
,
1679 abi_ulong target_addr
,
1682 const socklen_t unix_maxlen
= sizeof (struct sockaddr_un
);
1683 sa_family_t sa_family
;
1684 struct target_sockaddr
*target_saddr
;
1686 if (fd_trans_target_to_host_addr(fd
)) {
1687 return fd_trans_target_to_host_addr(fd
)(addr
, target_addr
, len
);
1690 target_saddr
= lock_user(VERIFY_READ
, target_addr
, len
, 1);
1692 return -TARGET_EFAULT
;
1694 sa_family
= tswap16(target_saddr
->sa_family
);
1696 /* Oops. The caller might send a incomplete sun_path; sun_path
1697 * must be terminated by \0 (see the manual page), but
1698 * unfortunately it is quite common to specify sockaddr_un
1699 * length as "strlen(x->sun_path)" while it should be
1700 * "strlen(...) + 1". We'll fix that here if needed.
1701 * Linux kernel has a similar feature.
1704 if (sa_family
== AF_UNIX
) {
1705 if (len
< unix_maxlen
&& len
> 0) {
1706 char *cp
= (char*)target_saddr
;
1708 if ( cp
[len
-1] && !cp
[len
] )
1711 if (len
> unix_maxlen
)
1715 memcpy(addr
, target_saddr
, len
);
1716 addr
->sa_family
= sa_family
;
1717 if (sa_family
== AF_NETLINK
) {
1718 struct sockaddr_nl
*nladdr
;
1720 nladdr
= (struct sockaddr_nl
*)addr
;
1721 nladdr
->nl_pid
= tswap32(nladdr
->nl_pid
);
1722 nladdr
->nl_groups
= tswap32(nladdr
->nl_groups
);
1723 } else if (sa_family
== AF_PACKET
) {
1724 struct target_sockaddr_ll
*lladdr
;
1726 lladdr
= (struct target_sockaddr_ll
*)addr
;
1727 lladdr
->sll_ifindex
= tswap32(lladdr
->sll_ifindex
);
1728 lladdr
->sll_hatype
= tswap16(lladdr
->sll_hatype
);
1729 } else if (sa_family
== AF_INET6
) {
1730 struct sockaddr_in6
*in6addr
;
1732 in6addr
= (struct sockaddr_in6
*)addr
;
1733 in6addr
->sin6_scope_id
= tswap32(in6addr
->sin6_scope_id
);
1735 unlock_user(target_saddr
, target_addr
, 0);
1740 static inline abi_long
host_to_target_sockaddr(abi_ulong target_addr
,
1741 struct sockaddr
*addr
,
1744 struct target_sockaddr
*target_saddr
;
1751 target_saddr
= lock_user(VERIFY_WRITE
, target_addr
, len
, 0);
1753 return -TARGET_EFAULT
;
1754 memcpy(target_saddr
, addr
, len
);
1755 if (len
>= offsetof(struct target_sockaddr
, sa_family
) +
1756 sizeof(target_saddr
->sa_family
)) {
1757 target_saddr
->sa_family
= tswap16(addr
->sa_family
);
1759 if (addr
->sa_family
== AF_NETLINK
&&
1760 len
>= sizeof(struct target_sockaddr_nl
)) {
1761 struct target_sockaddr_nl
*target_nl
=
1762 (struct target_sockaddr_nl
*)target_saddr
;
1763 target_nl
->nl_pid
= tswap32(target_nl
->nl_pid
);
1764 target_nl
->nl_groups
= tswap32(target_nl
->nl_groups
);
1765 } else if (addr
->sa_family
== AF_PACKET
) {
1766 struct sockaddr_ll
*target_ll
= (struct sockaddr_ll
*)target_saddr
;
1767 target_ll
->sll_ifindex
= tswap32(target_ll
->sll_ifindex
);
1768 target_ll
->sll_hatype
= tswap16(target_ll
->sll_hatype
);
1769 } else if (addr
->sa_family
== AF_INET6
&&
1770 len
>= sizeof(struct target_sockaddr_in6
)) {
1771 struct target_sockaddr_in6
*target_in6
=
1772 (struct target_sockaddr_in6
*)target_saddr
;
1773 target_in6
->sin6_scope_id
= tswap16(target_in6
->sin6_scope_id
);
1775 unlock_user(target_saddr
, target_addr
, len
);
1780 static inline abi_long
target_to_host_cmsg(struct msghdr
*msgh
,
1781 struct target_msghdr
*target_msgh
)
1783 struct cmsghdr
*cmsg
= CMSG_FIRSTHDR(msgh
);
1784 abi_long msg_controllen
;
1785 abi_ulong target_cmsg_addr
;
1786 struct target_cmsghdr
*target_cmsg
, *target_cmsg_start
;
1787 socklen_t space
= 0;
1789 msg_controllen
= tswapal(target_msgh
->msg_controllen
);
1790 if (msg_controllen
< sizeof (struct target_cmsghdr
))
1792 target_cmsg_addr
= tswapal(target_msgh
->msg_control
);
1793 target_cmsg
= lock_user(VERIFY_READ
, target_cmsg_addr
, msg_controllen
, 1);
1794 target_cmsg_start
= target_cmsg
;
1796 return -TARGET_EFAULT
;
1798 while (cmsg
&& target_cmsg
) {
1799 void *data
= CMSG_DATA(cmsg
);
1800 void *target_data
= TARGET_CMSG_DATA(target_cmsg
);
1802 int len
= tswapal(target_cmsg
->cmsg_len
)
1803 - sizeof(struct target_cmsghdr
);
1805 space
+= CMSG_SPACE(len
);
1806 if (space
> msgh
->msg_controllen
) {
1807 space
-= CMSG_SPACE(len
);
1808 /* This is a QEMU bug, since we allocated the payload
1809 * area ourselves (unlike overflow in host-to-target
1810 * conversion, which is just the guest giving us a buffer
1811 * that's too small). It can't happen for the payload types
1812 * we currently support; if it becomes an issue in future
1813 * we would need to improve our allocation strategy to
1814 * something more intelligent than "twice the size of the
1815 * target buffer we're reading from".
1817 qemu_log_mask(LOG_UNIMP
,
1818 ("Unsupported ancillary data %d/%d: "
1819 "unhandled msg size\n"),
1820 tswap32(target_cmsg
->cmsg_level
),
1821 tswap32(target_cmsg
->cmsg_type
));
1825 if (tswap32(target_cmsg
->cmsg_level
) == TARGET_SOL_SOCKET
) {
1826 cmsg
->cmsg_level
= SOL_SOCKET
;
1828 cmsg
->cmsg_level
= tswap32(target_cmsg
->cmsg_level
);
1830 cmsg
->cmsg_type
= tswap32(target_cmsg
->cmsg_type
);
1831 cmsg
->cmsg_len
= CMSG_LEN(len
);
1833 if (cmsg
->cmsg_level
== SOL_SOCKET
&& cmsg
->cmsg_type
== SCM_RIGHTS
) {
1834 int *fd
= (int *)data
;
1835 int *target_fd
= (int *)target_data
;
1836 int i
, numfds
= len
/ sizeof(int);
1838 for (i
= 0; i
< numfds
; i
++) {
1839 __get_user(fd
[i
], target_fd
+ i
);
1841 } else if (cmsg
->cmsg_level
== SOL_SOCKET
1842 && cmsg
->cmsg_type
== SCM_CREDENTIALS
) {
1843 struct ucred
*cred
= (struct ucred
*)data
;
1844 struct target_ucred
*target_cred
=
1845 (struct target_ucred
*)target_data
;
1847 __get_user(cred
->pid
, &target_cred
->pid
);
1848 __get_user(cred
->uid
, &target_cred
->uid
);
1849 __get_user(cred
->gid
, &target_cred
->gid
);
1850 } else if (cmsg
->cmsg_level
== SOL_ALG
) {
1851 uint32_t *dst
= (uint32_t *)data
;
1853 memcpy(dst
, target_data
, len
);
1854 /* fix endianess of first 32-bit word */
1855 if (len
>= sizeof(uint32_t)) {
1856 *dst
= tswap32(*dst
);
1859 qemu_log_mask(LOG_UNIMP
, "Unsupported ancillary data: %d/%d\n",
1860 cmsg
->cmsg_level
, cmsg
->cmsg_type
);
1861 memcpy(data
, target_data
, len
);
1864 cmsg
= CMSG_NXTHDR(msgh
, cmsg
);
1865 target_cmsg
= TARGET_CMSG_NXTHDR(target_msgh
, target_cmsg
,
1868 unlock_user(target_cmsg
, target_cmsg_addr
, 0);
1870 msgh
->msg_controllen
= space
;
1874 static inline abi_long
host_to_target_cmsg(struct target_msghdr
*target_msgh
,
1875 struct msghdr
*msgh
)
1877 struct cmsghdr
*cmsg
= CMSG_FIRSTHDR(msgh
);
1878 abi_long msg_controllen
;
1879 abi_ulong target_cmsg_addr
;
1880 struct target_cmsghdr
*target_cmsg
, *target_cmsg_start
;
1881 socklen_t space
= 0;
1883 msg_controllen
= tswapal(target_msgh
->msg_controllen
);
1884 if (msg_controllen
< sizeof (struct target_cmsghdr
))
1886 target_cmsg_addr
= tswapal(target_msgh
->msg_control
);
1887 target_cmsg
= lock_user(VERIFY_WRITE
, target_cmsg_addr
, msg_controllen
, 0);
1888 target_cmsg_start
= target_cmsg
;
1890 return -TARGET_EFAULT
;
1892 while (cmsg
&& target_cmsg
) {
1893 void *data
= CMSG_DATA(cmsg
);
1894 void *target_data
= TARGET_CMSG_DATA(target_cmsg
);
1896 int len
= cmsg
->cmsg_len
- sizeof(struct cmsghdr
);
1897 int tgt_len
, tgt_space
;
1899 /* We never copy a half-header but may copy half-data;
1900 * this is Linux's behaviour in put_cmsg(). Note that
1901 * truncation here is a guest problem (which we report
1902 * to the guest via the CTRUNC bit), unlike truncation
1903 * in target_to_host_cmsg, which is a QEMU bug.
1905 if (msg_controllen
< sizeof(struct target_cmsghdr
)) {
1906 target_msgh
->msg_flags
|= tswap32(MSG_CTRUNC
);
1910 if (cmsg
->cmsg_level
== SOL_SOCKET
) {
1911 target_cmsg
->cmsg_level
= tswap32(TARGET_SOL_SOCKET
);
1913 target_cmsg
->cmsg_level
= tswap32(cmsg
->cmsg_level
);
1915 target_cmsg
->cmsg_type
= tswap32(cmsg
->cmsg_type
);
1917 /* Payload types which need a different size of payload on
1918 * the target must adjust tgt_len here.
1921 switch (cmsg
->cmsg_level
) {
1923 switch (cmsg
->cmsg_type
) {
1925 tgt_len
= sizeof(struct target_timeval
);
1935 if (msg_controllen
< TARGET_CMSG_LEN(tgt_len
)) {
1936 target_msgh
->msg_flags
|= tswap32(MSG_CTRUNC
);
1937 tgt_len
= msg_controllen
- sizeof(struct target_cmsghdr
);
1940 /* We must now copy-and-convert len bytes of payload
1941 * into tgt_len bytes of destination space. Bear in mind
1942 * that in both source and destination we may be dealing
1943 * with a truncated value!
1945 switch (cmsg
->cmsg_level
) {
1947 switch (cmsg
->cmsg_type
) {
1950 int *fd
= (int *)data
;
1951 int *target_fd
= (int *)target_data
;
1952 int i
, numfds
= tgt_len
/ sizeof(int);
1954 for (i
= 0; i
< numfds
; i
++) {
1955 __put_user(fd
[i
], target_fd
+ i
);
1961 struct timeval
*tv
= (struct timeval
*)data
;
1962 struct target_timeval
*target_tv
=
1963 (struct target_timeval
*)target_data
;
1965 if (len
!= sizeof(struct timeval
) ||
1966 tgt_len
!= sizeof(struct target_timeval
)) {
1970 /* copy struct timeval to target */
1971 __put_user(tv
->tv_sec
, &target_tv
->tv_sec
);
1972 __put_user(tv
->tv_usec
, &target_tv
->tv_usec
);
1975 case SCM_CREDENTIALS
:
1977 struct ucred
*cred
= (struct ucred
*)data
;
1978 struct target_ucred
*target_cred
=
1979 (struct target_ucred
*)target_data
;
1981 __put_user(cred
->pid
, &target_cred
->pid
);
1982 __put_user(cred
->uid
, &target_cred
->uid
);
1983 __put_user(cred
->gid
, &target_cred
->gid
);
1992 switch (cmsg
->cmsg_type
) {
1995 uint32_t *v
= (uint32_t *)data
;
1996 uint32_t *t_int
= (uint32_t *)target_data
;
1998 if (len
!= sizeof(uint32_t) ||
1999 tgt_len
!= sizeof(uint32_t)) {
2002 __put_user(*v
, t_int
);
2008 struct sock_extended_err ee
;
2009 struct sockaddr_in offender
;
2011 struct errhdr_t
*errh
= (struct errhdr_t
*)data
;
2012 struct errhdr_t
*target_errh
=
2013 (struct errhdr_t
*)target_data
;
2015 if (len
!= sizeof(struct errhdr_t
) ||
2016 tgt_len
!= sizeof(struct errhdr_t
)) {
2019 __put_user(errh
->ee
.ee_errno
, &target_errh
->ee
.ee_errno
);
2020 __put_user(errh
->ee
.ee_origin
, &target_errh
->ee
.ee_origin
);
2021 __put_user(errh
->ee
.ee_type
, &target_errh
->ee
.ee_type
);
2022 __put_user(errh
->ee
.ee_code
, &target_errh
->ee
.ee_code
);
2023 __put_user(errh
->ee
.ee_pad
, &target_errh
->ee
.ee_pad
);
2024 __put_user(errh
->ee
.ee_info
, &target_errh
->ee
.ee_info
);
2025 __put_user(errh
->ee
.ee_data
, &target_errh
->ee
.ee_data
);
2026 host_to_target_sockaddr((unsigned long) &target_errh
->offender
,
2027 (void *) &errh
->offender
, sizeof(errh
->offender
));
2036 switch (cmsg
->cmsg_type
) {
2039 uint32_t *v
= (uint32_t *)data
;
2040 uint32_t *t_int
= (uint32_t *)target_data
;
2042 if (len
!= sizeof(uint32_t) ||
2043 tgt_len
!= sizeof(uint32_t)) {
2046 __put_user(*v
, t_int
);
2052 struct sock_extended_err ee
;
2053 struct sockaddr_in6 offender
;
2055 struct errhdr6_t
*errh
= (struct errhdr6_t
*)data
;
2056 struct errhdr6_t
*target_errh
=
2057 (struct errhdr6_t
*)target_data
;
2059 if (len
!= sizeof(struct errhdr6_t
) ||
2060 tgt_len
!= sizeof(struct errhdr6_t
)) {
2063 __put_user(errh
->ee
.ee_errno
, &target_errh
->ee
.ee_errno
);
2064 __put_user(errh
->ee
.ee_origin
, &target_errh
->ee
.ee_origin
);
2065 __put_user(errh
->ee
.ee_type
, &target_errh
->ee
.ee_type
);
2066 __put_user(errh
->ee
.ee_code
, &target_errh
->ee
.ee_code
);
2067 __put_user(errh
->ee
.ee_pad
, &target_errh
->ee
.ee_pad
);
2068 __put_user(errh
->ee
.ee_info
, &target_errh
->ee
.ee_info
);
2069 __put_user(errh
->ee
.ee_data
, &target_errh
->ee
.ee_data
);
2070 host_to_target_sockaddr((unsigned long) &target_errh
->offender
,
2071 (void *) &errh
->offender
, sizeof(errh
->offender
));
2081 qemu_log_mask(LOG_UNIMP
, "Unsupported ancillary data: %d/%d\n",
2082 cmsg
->cmsg_level
, cmsg
->cmsg_type
);
2083 memcpy(target_data
, data
, MIN(len
, tgt_len
));
2084 if (tgt_len
> len
) {
2085 memset(target_data
+ len
, 0, tgt_len
- len
);
2089 target_cmsg
->cmsg_len
= tswapal(TARGET_CMSG_LEN(tgt_len
));
2090 tgt_space
= TARGET_CMSG_SPACE(tgt_len
);
2091 if (msg_controllen
< tgt_space
) {
2092 tgt_space
= msg_controllen
;
2094 msg_controllen
-= tgt_space
;
2096 cmsg
= CMSG_NXTHDR(msgh
, cmsg
);
2097 target_cmsg
= TARGET_CMSG_NXTHDR(target_msgh
, target_cmsg
,
2100 unlock_user(target_cmsg
, target_cmsg_addr
, space
);
2102 target_msgh
->msg_controllen
= tswapal(space
);
2106 /* do_setsockopt() Must return target values and target errnos. */
2107 static abi_long
do_setsockopt(int sockfd
, int level
, int optname
,
2108 abi_ulong optval_addr
, socklen_t optlen
)
2112 struct ip_mreqn
*ip_mreq
;
2113 struct ip_mreq_source
*ip_mreq_source
;
2118 /* TCP and UDP options all take an 'int' value. */
2119 if (optlen
< sizeof(uint32_t))
2120 return -TARGET_EINVAL
;
2122 if (get_user_u32(val
, optval_addr
))
2123 return -TARGET_EFAULT
;
2124 ret
= get_errno(setsockopt(sockfd
, level
, optname
, &val
, sizeof(val
)));
2131 case IP_ROUTER_ALERT
:
2135 case IP_MTU_DISCOVER
:
2142 case IP_MULTICAST_TTL
:
2143 case IP_MULTICAST_LOOP
:
2145 if (optlen
>= sizeof(uint32_t)) {
2146 if (get_user_u32(val
, optval_addr
))
2147 return -TARGET_EFAULT
;
2148 } else if (optlen
>= 1) {
2149 if (get_user_u8(val
, optval_addr
))
2150 return -TARGET_EFAULT
;
2152 ret
= get_errno(setsockopt(sockfd
, level
, optname
, &val
, sizeof(val
)));
2154 case IP_ADD_MEMBERSHIP
:
2155 case IP_DROP_MEMBERSHIP
:
2156 if (optlen
< sizeof (struct target_ip_mreq
) ||
2157 optlen
> sizeof (struct target_ip_mreqn
))
2158 return -TARGET_EINVAL
;
2160 ip_mreq
= (struct ip_mreqn
*) alloca(optlen
);
2161 target_to_host_ip_mreq(ip_mreq
, optval_addr
, optlen
);
2162 ret
= get_errno(setsockopt(sockfd
, level
, optname
, ip_mreq
, optlen
));
2165 case IP_BLOCK_SOURCE
:
2166 case IP_UNBLOCK_SOURCE
:
2167 case IP_ADD_SOURCE_MEMBERSHIP
:
2168 case IP_DROP_SOURCE_MEMBERSHIP
:
2169 if (optlen
!= sizeof (struct target_ip_mreq_source
))
2170 return -TARGET_EINVAL
;
2172 ip_mreq_source
= lock_user(VERIFY_READ
, optval_addr
, optlen
, 1);
2173 if (!ip_mreq_source
) {
2174 return -TARGET_EFAULT
;
2176 ret
= get_errno(setsockopt(sockfd
, level
, optname
, ip_mreq_source
, optlen
));
2177 unlock_user (ip_mreq_source
, optval_addr
, 0);
2186 case IPV6_MTU_DISCOVER
:
2189 case IPV6_RECVPKTINFO
:
2190 case IPV6_UNICAST_HOPS
:
2191 case IPV6_MULTICAST_HOPS
:
2192 case IPV6_MULTICAST_LOOP
:
2194 case IPV6_RECVHOPLIMIT
:
2195 case IPV6_2292HOPLIMIT
:
2198 case IPV6_2292PKTINFO
:
2199 case IPV6_RECVTCLASS
:
2200 case IPV6_RECVRTHDR
:
2201 case IPV6_2292RTHDR
:
2202 case IPV6_RECVHOPOPTS
:
2203 case IPV6_2292HOPOPTS
:
2204 case IPV6_RECVDSTOPTS
:
2205 case IPV6_2292DSTOPTS
:
2207 case IPV6_ADDR_PREFERENCES
:
2208 #ifdef IPV6_RECVPATHMTU
2209 case IPV6_RECVPATHMTU
:
2211 #ifdef IPV6_TRANSPARENT
2212 case IPV6_TRANSPARENT
:
2214 #ifdef IPV6_FREEBIND
2217 #ifdef IPV6_RECVORIGDSTADDR
2218 case IPV6_RECVORIGDSTADDR
:
2221 if (optlen
< sizeof(uint32_t)) {
2222 return -TARGET_EINVAL
;
2224 if (get_user_u32(val
, optval_addr
)) {
2225 return -TARGET_EFAULT
;
2227 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2228 &val
, sizeof(val
)));
2232 struct in6_pktinfo pki
;
2234 if (optlen
< sizeof(pki
)) {
2235 return -TARGET_EINVAL
;
2238 if (copy_from_user(&pki
, optval_addr
, sizeof(pki
))) {
2239 return -TARGET_EFAULT
;
2242 pki
.ipi6_ifindex
= tswap32(pki
.ipi6_ifindex
);
2244 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2245 &pki
, sizeof(pki
)));
2248 case IPV6_ADD_MEMBERSHIP
:
2249 case IPV6_DROP_MEMBERSHIP
:
2251 struct ipv6_mreq ipv6mreq
;
2253 if (optlen
< sizeof(ipv6mreq
)) {
2254 return -TARGET_EINVAL
;
2257 if (copy_from_user(&ipv6mreq
, optval_addr
, sizeof(ipv6mreq
))) {
2258 return -TARGET_EFAULT
;
2261 ipv6mreq
.ipv6mr_interface
= tswap32(ipv6mreq
.ipv6mr_interface
);
2263 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2264 &ipv6mreq
, sizeof(ipv6mreq
)));
2275 struct icmp6_filter icmp6f
;
2277 if (optlen
> sizeof(icmp6f
)) {
2278 optlen
= sizeof(icmp6f
);
2281 if (copy_from_user(&icmp6f
, optval_addr
, optlen
)) {
2282 return -TARGET_EFAULT
;
2285 for (val
= 0; val
< 8; val
++) {
2286 icmp6f
.data
[val
] = tswap32(icmp6f
.data
[val
]);
2289 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2301 /* those take an u32 value */
2302 if (optlen
< sizeof(uint32_t)) {
2303 return -TARGET_EINVAL
;
2306 if (get_user_u32(val
, optval_addr
)) {
2307 return -TARGET_EFAULT
;
2309 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2310 &val
, sizeof(val
)));
2317 #if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE)
2322 char *alg_key
= g_malloc(optlen
);
2325 return -TARGET_ENOMEM
;
2327 if (copy_from_user(alg_key
, optval_addr
, optlen
)) {
2329 return -TARGET_EFAULT
;
2331 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2336 case ALG_SET_AEAD_AUTHSIZE
:
2338 ret
= get_errno(setsockopt(sockfd
, level
, optname
,
2347 case TARGET_SOL_SOCKET
:
2349 case TARGET_SO_RCVTIMEO
:
2353 optname
= SO_RCVTIMEO
;
2356 if (optlen
!= sizeof(struct target_timeval
)) {
2357 return -TARGET_EINVAL
;
2360 if (copy_from_user_timeval(&tv
, optval_addr
)) {
2361 return -TARGET_EFAULT
;
2364 ret
= get_errno(setsockopt(sockfd
, SOL_SOCKET
, optname
,
2368 case TARGET_SO_SNDTIMEO
:
2369 optname
= SO_SNDTIMEO
;
2371 case TARGET_SO_ATTACH_FILTER
:
2373 struct target_sock_fprog
*tfprog
;
2374 struct target_sock_filter
*tfilter
;
2375 struct sock_fprog fprog
;
2376 struct sock_filter
*filter
;
2379 if (optlen
!= sizeof(*tfprog
)) {
2380 return -TARGET_EINVAL
;
2382 if (!lock_user_struct(VERIFY_READ
, tfprog
, optval_addr
, 0)) {
2383 return -TARGET_EFAULT
;
2385 if (!lock_user_struct(VERIFY_READ
, tfilter
,
2386 tswapal(tfprog
->filter
), 0)) {
2387 unlock_user_struct(tfprog
, optval_addr
, 1);
2388 return -TARGET_EFAULT
;
2391 fprog
.len
= tswap16(tfprog
->len
);
2392 filter
= g_try_new(struct sock_filter
, fprog
.len
);
2393 if (filter
== NULL
) {
2394 unlock_user_struct(tfilter
, tfprog
->filter
, 1);
2395 unlock_user_struct(tfprog
, optval_addr
, 1);
2396 return -TARGET_ENOMEM
;
2398 for (i
= 0; i
< fprog
.len
; i
++) {
2399 filter
[i
].code
= tswap16(tfilter
[i
].code
);
2400 filter
[i
].jt
= tfilter
[i
].jt
;
2401 filter
[i
].jf
= tfilter
[i
].jf
;
2402 filter
[i
].k
= tswap32(tfilter
[i
].k
);
2404 fprog
.filter
= filter
;
2406 ret
= get_errno(setsockopt(sockfd
, SOL_SOCKET
,
2407 SO_ATTACH_FILTER
, &fprog
, sizeof(fprog
)));
2410 unlock_user_struct(tfilter
, tfprog
->filter
, 1);
2411 unlock_user_struct(tfprog
, optval_addr
, 1);
2414 case TARGET_SO_BINDTODEVICE
:
2416 char *dev_ifname
, *addr_ifname
;
2418 if (optlen
> IFNAMSIZ
- 1) {
2419 optlen
= IFNAMSIZ
- 1;
2421 dev_ifname
= lock_user(VERIFY_READ
, optval_addr
, optlen
, 1);
2423 return -TARGET_EFAULT
;
2425 optname
= SO_BINDTODEVICE
;
2426 addr_ifname
= alloca(IFNAMSIZ
);
2427 memcpy(addr_ifname
, dev_ifname
, optlen
);
2428 addr_ifname
[optlen
] = 0;
2429 ret
= get_errno(setsockopt(sockfd
, SOL_SOCKET
, optname
,
2430 addr_ifname
, optlen
));
2431 unlock_user (dev_ifname
, optval_addr
, 0);
2434 case TARGET_SO_LINGER
:
2437 struct target_linger
*tlg
;
2439 if (optlen
!= sizeof(struct target_linger
)) {
2440 return -TARGET_EINVAL
;
2442 if (!lock_user_struct(VERIFY_READ
, tlg
, optval_addr
, 1)) {
2443 return -TARGET_EFAULT
;
2445 __get_user(lg
.l_onoff
, &tlg
->l_onoff
);
2446 __get_user(lg
.l_linger
, &tlg
->l_linger
);
2447 ret
= get_errno(setsockopt(sockfd
, SOL_SOCKET
, SO_LINGER
,
2449 unlock_user_struct(tlg
, optval_addr
, 0);
2452 /* Options with 'int' argument. */
2453 case TARGET_SO_DEBUG
:
2456 case TARGET_SO_REUSEADDR
:
2457 optname
= SO_REUSEADDR
;
2460 case TARGET_SO_REUSEPORT
:
2461 optname
= SO_REUSEPORT
;
2464 case TARGET_SO_TYPE
:
2467 case TARGET_SO_ERROR
:
2470 case TARGET_SO_DONTROUTE
:
2471 optname
= SO_DONTROUTE
;
2473 case TARGET_SO_BROADCAST
:
2474 optname
= SO_BROADCAST
;
2476 case TARGET_SO_SNDBUF
:
2477 optname
= SO_SNDBUF
;
2479 case TARGET_SO_SNDBUFFORCE
:
2480 optname
= SO_SNDBUFFORCE
;
2482 case TARGET_SO_RCVBUF
:
2483 optname
= SO_RCVBUF
;
2485 case TARGET_SO_RCVBUFFORCE
:
2486 optname
= SO_RCVBUFFORCE
;
2488 case TARGET_SO_KEEPALIVE
:
2489 optname
= SO_KEEPALIVE
;
2491 case TARGET_SO_OOBINLINE
:
2492 optname
= SO_OOBINLINE
;
2494 case TARGET_SO_NO_CHECK
:
2495 optname
= SO_NO_CHECK
;
2497 case TARGET_SO_PRIORITY
:
2498 optname
= SO_PRIORITY
;
2501 case TARGET_SO_BSDCOMPAT
:
2502 optname
= SO_BSDCOMPAT
;
2505 case TARGET_SO_PASSCRED
:
2506 optname
= SO_PASSCRED
;
2508 case TARGET_SO_PASSSEC
:
2509 optname
= SO_PASSSEC
;
2511 case TARGET_SO_TIMESTAMP
:
2512 optname
= SO_TIMESTAMP
;
2514 case TARGET_SO_RCVLOWAT
:
2515 optname
= SO_RCVLOWAT
;
2520 if (optlen
< sizeof(uint32_t))
2521 return -TARGET_EINVAL
;
2523 if (get_user_u32(val
, optval_addr
))
2524 return -TARGET_EFAULT
;
2525 ret
= get_errno(setsockopt(sockfd
, SOL_SOCKET
, optname
, &val
, sizeof(val
)));
2530 case NETLINK_PKTINFO
:
2531 case NETLINK_ADD_MEMBERSHIP
:
2532 case NETLINK_DROP_MEMBERSHIP
:
2533 case NETLINK_BROADCAST_ERROR
:
2534 case NETLINK_NO_ENOBUFS
:
2535 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
2536 case NETLINK_LISTEN_ALL_NSID
:
2537 case NETLINK_CAP_ACK
:
2538 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
2539 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
2540 case NETLINK_EXT_ACK
:
2541 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2542 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
2543 case NETLINK_GET_STRICT_CHK
:
2544 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2550 if (optlen
< sizeof(uint32_t)) {
2551 return -TARGET_EINVAL
;
2553 if (get_user_u32(val
, optval_addr
)) {
2554 return -TARGET_EFAULT
;
2556 ret
= get_errno(setsockopt(sockfd
, SOL_NETLINK
, optname
, &val
,
2559 #endif /* SOL_NETLINK */
2562 qemu_log_mask(LOG_UNIMP
, "Unsupported setsockopt level=%d optname=%d\n",
2564 ret
= -TARGET_ENOPROTOOPT
;
2569 /* do_getsockopt() Must return target values and target errnos. */
2570 static abi_long
do_getsockopt(int sockfd
, int level
, int optname
,
2571 abi_ulong optval_addr
, abi_ulong optlen
)
2578 case TARGET_SOL_SOCKET
:
2581 /* These don't just return a single integer */
2582 case TARGET_SO_PEERNAME
:
2584 case TARGET_SO_RCVTIMEO
: {
2588 optname
= SO_RCVTIMEO
;
2591 if (get_user_u32(len
, optlen
)) {
2592 return -TARGET_EFAULT
;
2595 return -TARGET_EINVAL
;
2599 ret
= get_errno(getsockopt(sockfd
, level
, optname
,
2604 if (len
> sizeof(struct target_timeval
)) {
2605 len
= sizeof(struct target_timeval
);
2607 if (copy_to_user_timeval(optval_addr
, &tv
)) {
2608 return -TARGET_EFAULT
;
2610 if (put_user_u32(len
, optlen
)) {
2611 return -TARGET_EFAULT
;
2615 case TARGET_SO_SNDTIMEO
:
2616 optname
= SO_SNDTIMEO
;
2618 case TARGET_SO_PEERCRED
: {
2621 struct target_ucred
*tcr
;
2623 if (get_user_u32(len
, optlen
)) {
2624 return -TARGET_EFAULT
;
2627 return -TARGET_EINVAL
;
2631 ret
= get_errno(getsockopt(sockfd
, level
, SO_PEERCRED
,
2639 if (!lock_user_struct(VERIFY_WRITE
, tcr
, optval_addr
, 0)) {
2640 return -TARGET_EFAULT
;
2642 __put_user(cr
.pid
, &tcr
->pid
);
2643 __put_user(cr
.uid
, &tcr
->uid
);
2644 __put_user(cr
.gid
, &tcr
->gid
);
2645 unlock_user_struct(tcr
, optval_addr
, 1);
2646 if (put_user_u32(len
, optlen
)) {
2647 return -TARGET_EFAULT
;
2651 case TARGET_SO_PEERSEC
: {
2654 if (get_user_u32(len
, optlen
)) {
2655 return -TARGET_EFAULT
;
2658 return -TARGET_EINVAL
;
2660 name
= lock_user(VERIFY_WRITE
, optval_addr
, len
, 0);
2662 return -TARGET_EFAULT
;
2665 ret
= get_errno(getsockopt(sockfd
, level
, SO_PEERSEC
,
2667 if (put_user_u32(lv
, optlen
)) {
2668 ret
= -TARGET_EFAULT
;
2670 unlock_user(name
, optval_addr
, lv
);
2673 case TARGET_SO_LINGER
:
2677 struct target_linger
*tlg
;
2679 if (get_user_u32(len
, optlen
)) {
2680 return -TARGET_EFAULT
;
2683 return -TARGET_EINVAL
;
2687 ret
= get_errno(getsockopt(sockfd
, level
, SO_LINGER
,
2695 if (!lock_user_struct(VERIFY_WRITE
, tlg
, optval_addr
, 0)) {
2696 return -TARGET_EFAULT
;
2698 __put_user(lg
.l_onoff
, &tlg
->l_onoff
);
2699 __put_user(lg
.l_linger
, &tlg
->l_linger
);
2700 unlock_user_struct(tlg
, optval_addr
, 1);
2701 if (put_user_u32(len
, optlen
)) {
2702 return -TARGET_EFAULT
;
2706 /* Options with 'int' argument. */
2707 case TARGET_SO_DEBUG
:
2710 case TARGET_SO_REUSEADDR
:
2711 optname
= SO_REUSEADDR
;
2714 case TARGET_SO_REUSEPORT
:
2715 optname
= SO_REUSEPORT
;
2718 case TARGET_SO_TYPE
:
2721 case TARGET_SO_ERROR
:
2724 case TARGET_SO_DONTROUTE
:
2725 optname
= SO_DONTROUTE
;
2727 case TARGET_SO_BROADCAST
:
2728 optname
= SO_BROADCAST
;
2730 case TARGET_SO_SNDBUF
:
2731 optname
= SO_SNDBUF
;
2733 case TARGET_SO_RCVBUF
:
2734 optname
= SO_RCVBUF
;
2736 case TARGET_SO_KEEPALIVE
:
2737 optname
= SO_KEEPALIVE
;
2739 case TARGET_SO_OOBINLINE
:
2740 optname
= SO_OOBINLINE
;
2742 case TARGET_SO_NO_CHECK
:
2743 optname
= SO_NO_CHECK
;
2745 case TARGET_SO_PRIORITY
:
2746 optname
= SO_PRIORITY
;
2749 case TARGET_SO_BSDCOMPAT
:
2750 optname
= SO_BSDCOMPAT
;
2753 case TARGET_SO_PASSCRED
:
2754 optname
= SO_PASSCRED
;
2756 case TARGET_SO_TIMESTAMP
:
2757 optname
= SO_TIMESTAMP
;
2759 case TARGET_SO_RCVLOWAT
:
2760 optname
= SO_RCVLOWAT
;
2762 case TARGET_SO_ACCEPTCONN
:
2763 optname
= SO_ACCEPTCONN
;
2765 case TARGET_SO_PROTOCOL
:
2766 optname
= SO_PROTOCOL
;
2768 case TARGET_SO_DOMAIN
:
2769 optname
= SO_DOMAIN
;
2777 /* TCP and UDP options all take an 'int' value. */
2779 if (get_user_u32(len
, optlen
))
2780 return -TARGET_EFAULT
;
2782 return -TARGET_EINVAL
;
2784 ret
= get_errno(getsockopt(sockfd
, level
, optname
, &val
, &lv
));
2789 val
= host_to_target_sock_type(val
);
2792 val
= host_to_target_errno(val
);
2798 if (put_user_u32(val
, optval_addr
))
2799 return -TARGET_EFAULT
;
2801 if (put_user_u8(val
, optval_addr
))
2802 return -TARGET_EFAULT
;
2804 if (put_user_u32(len
, optlen
))
2805 return -TARGET_EFAULT
;
2812 case IP_ROUTER_ALERT
:
2816 case IP_MTU_DISCOVER
:
2822 case IP_MULTICAST_TTL
:
2823 case IP_MULTICAST_LOOP
:
2824 if (get_user_u32(len
, optlen
))
2825 return -TARGET_EFAULT
;
2827 return -TARGET_EINVAL
;
2829 ret
= get_errno(getsockopt(sockfd
, level
, optname
, &val
, &lv
));
2832 if (len
< sizeof(int) && len
> 0 && val
>= 0 && val
< 255) {
2834 if (put_user_u32(len
, optlen
)
2835 || put_user_u8(val
, optval_addr
))
2836 return -TARGET_EFAULT
;
2838 if (len
> sizeof(int))
2840 if (put_user_u32(len
, optlen
)
2841 || put_user_u32(val
, optval_addr
))
2842 return -TARGET_EFAULT
;
2846 ret
= -TARGET_ENOPROTOOPT
;
2852 case IPV6_MTU_DISCOVER
:
2855 case IPV6_RECVPKTINFO
:
2856 case IPV6_UNICAST_HOPS
:
2857 case IPV6_MULTICAST_HOPS
:
2858 case IPV6_MULTICAST_LOOP
:
2860 case IPV6_RECVHOPLIMIT
:
2861 case IPV6_2292HOPLIMIT
:
2864 case IPV6_2292PKTINFO
:
2865 case IPV6_RECVTCLASS
:
2866 case IPV6_RECVRTHDR
:
2867 case IPV6_2292RTHDR
:
2868 case IPV6_RECVHOPOPTS
:
2869 case IPV6_2292HOPOPTS
:
2870 case IPV6_RECVDSTOPTS
:
2871 case IPV6_2292DSTOPTS
:
2873 case IPV6_ADDR_PREFERENCES
:
2874 #ifdef IPV6_RECVPATHMTU
2875 case IPV6_RECVPATHMTU
:
2877 #ifdef IPV6_TRANSPARENT
2878 case IPV6_TRANSPARENT
:
2880 #ifdef IPV6_FREEBIND
2883 #ifdef IPV6_RECVORIGDSTADDR
2884 case IPV6_RECVORIGDSTADDR
:
2886 if (get_user_u32(len
, optlen
))
2887 return -TARGET_EFAULT
;
2889 return -TARGET_EINVAL
;
2891 ret
= get_errno(getsockopt(sockfd
, level
, optname
, &val
, &lv
));
2894 if (len
< sizeof(int) && len
> 0 && val
>= 0 && val
< 255) {
2896 if (put_user_u32(len
, optlen
)
2897 || put_user_u8(val
, optval_addr
))
2898 return -TARGET_EFAULT
;
2900 if (len
> sizeof(int))
2902 if (put_user_u32(len
, optlen
)
2903 || put_user_u32(val
, optval_addr
))
2904 return -TARGET_EFAULT
;
2908 ret
= -TARGET_ENOPROTOOPT
;
2915 case NETLINK_PKTINFO
:
2916 case NETLINK_BROADCAST_ERROR
:
2917 case NETLINK_NO_ENOBUFS
:
2918 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
2919 case NETLINK_LISTEN_ALL_NSID
:
2920 case NETLINK_CAP_ACK
:
2921 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
2922 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
2923 case NETLINK_EXT_ACK
:
2924 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2925 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
2926 case NETLINK_GET_STRICT_CHK
:
2927 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */
2928 if (get_user_u32(len
, optlen
)) {
2929 return -TARGET_EFAULT
;
2931 if (len
!= sizeof(val
)) {
2932 return -TARGET_EINVAL
;
2935 ret
= get_errno(getsockopt(sockfd
, level
, optname
, &val
, &lv
));
2939 if (put_user_u32(lv
, optlen
)
2940 || put_user_u32(val
, optval_addr
)) {
2941 return -TARGET_EFAULT
;
2944 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
2945 case NETLINK_LIST_MEMBERSHIPS
:
2949 if (get_user_u32(len
, optlen
)) {
2950 return -TARGET_EFAULT
;
2953 return -TARGET_EINVAL
;
2955 results
= lock_user(VERIFY_WRITE
, optval_addr
, len
, 1);
2956 if (!results
&& len
> 0) {
2957 return -TARGET_EFAULT
;
2960 ret
= get_errno(getsockopt(sockfd
, level
, optname
, results
, &lv
));
2962 unlock_user(results
, optval_addr
, 0);
2965 /* swap host endianess to target endianess. */
2966 for (i
= 0; i
< (len
/ sizeof(uint32_t)); i
++) {
2967 results
[i
] = tswap32(results
[i
]);
2969 if (put_user_u32(lv
, optlen
)) {
2970 return -TARGET_EFAULT
;
2972 unlock_user(results
, optval_addr
, 0);
2975 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */
2980 #endif /* SOL_NETLINK */
2983 qemu_log_mask(LOG_UNIMP
,
2984 "getsockopt level=%d optname=%d not yet supported\n",
2986 ret
= -TARGET_EOPNOTSUPP
;
2992 /* Convert target low/high pair representing file offset into the host
2993 * low/high pair. This function doesn't handle offsets bigger than 64 bits
2994 * as the kernel doesn't handle them either.
2996 static void target_to_host_low_high(abi_ulong tlow
,
2998 unsigned long *hlow
,
2999 unsigned long *hhigh
)
3001 uint64_t off
= tlow
|
3002 ((unsigned long long)thigh
<< TARGET_LONG_BITS
/ 2) <<
3003 TARGET_LONG_BITS
/ 2;
3006 *hhigh
= (off
>> HOST_LONG_BITS
/ 2) >> HOST_LONG_BITS
/ 2;
3009 static struct iovec
*lock_iovec(int type
, abi_ulong target_addr
,
3010 abi_ulong count
, int copy
)
3012 struct target_iovec
*target_vec
;
3014 abi_ulong total_len
, max_len
;
3017 bool bad_address
= false;
3023 if (count
> IOV_MAX
) {
3028 vec
= g_try_new0(struct iovec
, count
);
3034 target_vec
= lock_user(VERIFY_READ
, target_addr
,
3035 count
* sizeof(struct target_iovec
), 1);
3036 if (target_vec
== NULL
) {
3041 /* ??? If host page size > target page size, this will result in a
3042 value larger than what we can actually support. */
3043 max_len
= 0x7fffffff & TARGET_PAGE_MASK
;
3046 for (i
= 0; i
< count
; i
++) {
3047 abi_ulong base
= tswapal(target_vec
[i
].iov_base
);
3048 abi_long len
= tswapal(target_vec
[i
].iov_len
);
3053 } else if (len
== 0) {
3054 /* Zero length pointer is ignored. */
3055 vec
[i
].iov_base
= 0;
3057 vec
[i
].iov_base
= lock_user(type
, base
, len
, copy
);
3058 /* If the first buffer pointer is bad, this is a fault. But
3059 * subsequent bad buffers will result in a partial write; this
3060 * is realized by filling the vector with null pointers and
3062 if (!vec
[i
].iov_base
) {
3073 if (len
> max_len
- total_len
) {
3074 len
= max_len
- total_len
;
3077 vec
[i
].iov_len
= len
;
3081 unlock_user(target_vec
, target_addr
, 0);
3086 if (tswapal(target_vec
[i
].iov_len
) > 0) {
3087 unlock_user(vec
[i
].iov_base
, tswapal(target_vec
[i
].iov_base
), 0);
3090 unlock_user(target_vec
, target_addr
, 0);
3097 static void unlock_iovec(struct iovec
*vec
, abi_ulong target_addr
,
3098 abi_ulong count
, int copy
)
3100 struct target_iovec
*target_vec
;
3103 target_vec
= lock_user(VERIFY_READ
, target_addr
,
3104 count
* sizeof(struct target_iovec
), 1);
3106 for (i
= 0; i
< count
; i
++) {
3107 abi_ulong base
= tswapal(target_vec
[i
].iov_base
);
3108 abi_long len
= tswapal(target_vec
[i
].iov_len
);
3112 unlock_user(vec
[i
].iov_base
, base
, copy
? vec
[i
].iov_len
: 0);
3114 unlock_user(target_vec
, target_addr
, 0);
3120 static inline int target_to_host_sock_type(int *type
)
3123 int target_type
= *type
;
3125 switch (target_type
& TARGET_SOCK_TYPE_MASK
) {
3126 case TARGET_SOCK_DGRAM
:
3127 host_type
= SOCK_DGRAM
;
3129 case TARGET_SOCK_STREAM
:
3130 host_type
= SOCK_STREAM
;
3133 host_type
= target_type
& TARGET_SOCK_TYPE_MASK
;
3136 if (target_type
& TARGET_SOCK_CLOEXEC
) {
3137 #if defined(SOCK_CLOEXEC)
3138 host_type
|= SOCK_CLOEXEC
;
3140 return -TARGET_EINVAL
;
3143 if (target_type
& TARGET_SOCK_NONBLOCK
) {
3144 #if defined(SOCK_NONBLOCK)
3145 host_type
|= SOCK_NONBLOCK
;
3146 #elif !defined(O_NONBLOCK)
3147 return -TARGET_EINVAL
;
3154 /* Try to emulate socket type flags after socket creation. */
3155 static int sock_flags_fixup(int fd
, int target_type
)
3157 #if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
3158 if (target_type
& TARGET_SOCK_NONBLOCK
) {
3159 int flags
= fcntl(fd
, F_GETFL
);
3160 if (fcntl(fd
, F_SETFL
, O_NONBLOCK
| flags
) == -1) {
3162 return -TARGET_EINVAL
;
3169 /* do_socket() Must return target values and target errnos. */
3170 static abi_long
do_socket(int domain
, int type
, int protocol
)
3172 int target_type
= type
;
3175 ret
= target_to_host_sock_type(&type
);
3180 if (domain
== PF_NETLINK
&& !(
3181 #ifdef CONFIG_RTNETLINK
3182 protocol
== NETLINK_ROUTE
||
3184 protocol
== NETLINK_KOBJECT_UEVENT
||
3185 protocol
== NETLINK_AUDIT
)) {
3186 return -TARGET_EPROTONOSUPPORT
;
3189 if (domain
== AF_PACKET
||
3190 (domain
== AF_INET
&& type
== SOCK_PACKET
)) {
3191 protocol
= tswap16(protocol
);
3194 ret
= get_errno(socket(domain
, type
, protocol
));
3196 ret
= sock_flags_fixup(ret
, target_type
);
3197 if (type
== SOCK_PACKET
) {
3198 /* Manage an obsolete case :
3199 * if socket type is SOCK_PACKET, bind by name
3201 fd_trans_register(ret
, &target_packet_trans
);
3202 } else if (domain
== PF_NETLINK
) {
3204 #ifdef CONFIG_RTNETLINK
3206 fd_trans_register(ret
, &target_netlink_route_trans
);
3209 case NETLINK_KOBJECT_UEVENT
:
3210 /* nothing to do: messages are strings */
3213 fd_trans_register(ret
, &target_netlink_audit_trans
);
3216 g_assert_not_reached();
3223 /* do_bind() Must return target values and target errnos. */
3224 static abi_long
do_bind(int sockfd
, abi_ulong target_addr
,
3230 if ((int)addrlen
< 0) {
3231 return -TARGET_EINVAL
;
3234 addr
= alloca(addrlen
+1);
3236 ret
= target_to_host_sockaddr(sockfd
, addr
, target_addr
, addrlen
);
3240 return get_errno(bind(sockfd
, addr
, addrlen
));
3243 /* do_connect() Must return target values and target errnos. */
3244 static abi_long
do_connect(int sockfd
, abi_ulong target_addr
,
3250 if ((int)addrlen
< 0) {
3251 return -TARGET_EINVAL
;
3254 addr
= alloca(addrlen
+1);
3256 ret
= target_to_host_sockaddr(sockfd
, addr
, target_addr
, addrlen
);
3260 return get_errno(safe_connect(sockfd
, addr
, addrlen
));
3263 /* do_sendrecvmsg_locked() Must return target values and target errnos. */
3264 static abi_long
do_sendrecvmsg_locked(int fd
, struct target_msghdr
*msgp
,
3265 int flags
, int send
)
3271 abi_ulong target_vec
;
3273 if (msgp
->msg_name
) {
3274 msg
.msg_namelen
= tswap32(msgp
->msg_namelen
);
3275 msg
.msg_name
= alloca(msg
.msg_namelen
+1);
3276 ret
= target_to_host_sockaddr(fd
, msg
.msg_name
,
3277 tswapal(msgp
->msg_name
),
3279 if (ret
== -TARGET_EFAULT
) {
3280 /* For connected sockets msg_name and msg_namelen must
3281 * be ignored, so returning EFAULT immediately is wrong.
3282 * Instead, pass a bad msg_name to the host kernel, and
3283 * let it decide whether to return EFAULT or not.
3285 msg
.msg_name
= (void *)-1;
3290 msg
.msg_name
= NULL
;
3291 msg
.msg_namelen
= 0;
3293 msg
.msg_controllen
= 2 * tswapal(msgp
->msg_controllen
);
3294 msg
.msg_control
= alloca(msg
.msg_controllen
);
3295 memset(msg
.msg_control
, 0, msg
.msg_controllen
);
3297 msg
.msg_flags
= tswap32(msgp
->msg_flags
);
3299 count
= tswapal(msgp
->msg_iovlen
);
3300 target_vec
= tswapal(msgp
->msg_iov
);
3302 if (count
> IOV_MAX
) {
3303 /* sendrcvmsg returns a different errno for this condition than
3304 * readv/writev, so we must catch it here before lock_iovec() does.
3306 ret
= -TARGET_EMSGSIZE
;
3310 vec
= lock_iovec(send
? VERIFY_READ
: VERIFY_WRITE
,
3311 target_vec
, count
, send
);
3313 ret
= -host_to_target_errno(errno
);
3314 /* allow sending packet without any iov, e.g. with MSG_MORE flag */
3319 msg
.msg_iovlen
= count
;
3323 if (fd_trans_target_to_host_data(fd
)) {
3326 host_msg
= g_malloc(msg
.msg_iov
->iov_len
);
3327 memcpy(host_msg
, msg
.msg_iov
->iov_base
, msg
.msg_iov
->iov_len
);
3328 ret
= fd_trans_target_to_host_data(fd
)(host_msg
,
3329 msg
.msg_iov
->iov_len
);
3331 msg
.msg_iov
->iov_base
= host_msg
;
3332 ret
= get_errno(safe_sendmsg(fd
, &msg
, flags
));
3336 ret
= target_to_host_cmsg(&msg
, msgp
);
3338 ret
= get_errno(safe_sendmsg(fd
, &msg
, flags
));
3342 ret
= get_errno(safe_recvmsg(fd
, &msg
, flags
));
3343 if (!is_error(ret
)) {
3345 if (fd_trans_host_to_target_data(fd
)) {
3346 ret
= fd_trans_host_to_target_data(fd
)(msg
.msg_iov
->iov_base
,
3347 MIN(msg
.msg_iov
->iov_len
, len
));
3349 if (!is_error(ret
)) {
3350 ret
= host_to_target_cmsg(msgp
, &msg
);
3352 if (!is_error(ret
)) {
3353 msgp
->msg_namelen
= tswap32(msg
.msg_namelen
);
3354 msgp
->msg_flags
= tswap32(msg
.msg_flags
);
3355 if (msg
.msg_name
!= NULL
&& msg
.msg_name
!= (void *)-1) {
3356 ret
= host_to_target_sockaddr(tswapal(msgp
->msg_name
),
3357 msg
.msg_name
, msg
.msg_namelen
);
3370 unlock_iovec(vec
, target_vec
, count
, !send
);
3376 static abi_long
do_sendrecvmsg(int fd
, abi_ulong target_msg
,
3377 int flags
, int send
)
3380 struct target_msghdr
*msgp
;
3382 if (!lock_user_struct(send
? VERIFY_READ
: VERIFY_WRITE
,
3386 return -TARGET_EFAULT
;
3388 ret
= do_sendrecvmsg_locked(fd
, msgp
, flags
, send
);
3389 unlock_user_struct(msgp
, target_msg
, send
? 0 : 1);
3393 /* We don't rely on the C library to have sendmmsg/recvmmsg support,
3394 * so it might not have this *mmsg-specific flag either.
3396 #ifndef MSG_WAITFORONE
3397 #define MSG_WAITFORONE 0x10000
3400 static abi_long
do_sendrecvmmsg(int fd
, abi_ulong target_msgvec
,
3401 unsigned int vlen
, unsigned int flags
,
3404 struct target_mmsghdr
*mmsgp
;
3408 if (vlen
> UIO_MAXIOV
) {
3412 mmsgp
= lock_user(VERIFY_WRITE
, target_msgvec
, sizeof(*mmsgp
) * vlen
, 1);
3414 return -TARGET_EFAULT
;
3417 for (i
= 0; i
< vlen
; i
++) {
3418 ret
= do_sendrecvmsg_locked(fd
, &mmsgp
[i
].msg_hdr
, flags
, send
);
3419 if (is_error(ret
)) {
3422 mmsgp
[i
].msg_len
= tswap32(ret
);
3423 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
3424 if (flags
& MSG_WAITFORONE
) {
3425 flags
|= MSG_DONTWAIT
;
3429 unlock_user(mmsgp
, target_msgvec
, sizeof(*mmsgp
) * i
);
3431 /* Return number of datagrams sent if we sent any at all;
3432 * otherwise return the error.
3440 /* do_accept4() Must return target values and target errnos. */
3441 static abi_long
do_accept4(int fd
, abi_ulong target_addr
,
3442 abi_ulong target_addrlen_addr
, int flags
)
3444 socklen_t addrlen
, ret_addrlen
;
3449 if (flags
& ~(TARGET_SOCK_CLOEXEC
| TARGET_SOCK_NONBLOCK
)) {
3450 return -TARGET_EINVAL
;
3454 if (flags
& TARGET_SOCK_NONBLOCK
) {
3455 host_flags
|= SOCK_NONBLOCK
;
3457 if (flags
& TARGET_SOCK_CLOEXEC
) {
3458 host_flags
|= SOCK_CLOEXEC
;
3461 if (target_addr
== 0) {
3462 return get_errno(safe_accept4(fd
, NULL
, NULL
, host_flags
));
3465 /* linux returns EFAULT if addrlen pointer is invalid */
3466 if (get_user_u32(addrlen
, target_addrlen_addr
))
3467 return -TARGET_EFAULT
;
3469 if ((int)addrlen
< 0) {
3470 return -TARGET_EINVAL
;
3473 if (!access_ok(thread_cpu
, VERIFY_WRITE
, target_addr
, addrlen
)) {
3474 return -TARGET_EFAULT
;
3477 addr
= alloca(addrlen
);
3479 ret_addrlen
= addrlen
;
3480 ret
= get_errno(safe_accept4(fd
, addr
, &ret_addrlen
, host_flags
));
3481 if (!is_error(ret
)) {
3482 host_to_target_sockaddr(target_addr
, addr
, MIN(addrlen
, ret_addrlen
));
3483 if (put_user_u32(ret_addrlen
, target_addrlen_addr
)) {
3484 ret
= -TARGET_EFAULT
;
3490 /* do_getpeername() Must return target values and target errnos. */
3491 static abi_long
do_getpeername(int fd
, abi_ulong target_addr
,
3492 abi_ulong target_addrlen_addr
)
3494 socklen_t addrlen
, ret_addrlen
;
3498 if (get_user_u32(addrlen
, target_addrlen_addr
))
3499 return -TARGET_EFAULT
;
3501 if ((int)addrlen
< 0) {
3502 return -TARGET_EINVAL
;
3505 if (!access_ok(thread_cpu
, VERIFY_WRITE
, target_addr
, addrlen
)) {
3506 return -TARGET_EFAULT
;
3509 addr
= alloca(addrlen
);
3511 ret_addrlen
= addrlen
;
3512 ret
= get_errno(getpeername(fd
, addr
, &ret_addrlen
));
3513 if (!is_error(ret
)) {
3514 host_to_target_sockaddr(target_addr
, addr
, MIN(addrlen
, ret_addrlen
));
3515 if (put_user_u32(ret_addrlen
, target_addrlen_addr
)) {
3516 ret
= -TARGET_EFAULT
;
3522 /* do_getsockname() Must return target values and target errnos. */
3523 static abi_long
do_getsockname(int fd
, abi_ulong target_addr
,
3524 abi_ulong target_addrlen_addr
)
3526 socklen_t addrlen
, ret_addrlen
;
3530 if (get_user_u32(addrlen
, target_addrlen_addr
))
3531 return -TARGET_EFAULT
;
3533 if ((int)addrlen
< 0) {
3534 return -TARGET_EINVAL
;
3537 if (!access_ok(thread_cpu
, VERIFY_WRITE
, target_addr
, addrlen
)) {
3538 return -TARGET_EFAULT
;
3541 addr
= alloca(addrlen
);
3543 ret_addrlen
= addrlen
;
3544 ret
= get_errno(getsockname(fd
, addr
, &ret_addrlen
));
3545 if (!is_error(ret
)) {
3546 host_to_target_sockaddr(target_addr
, addr
, MIN(addrlen
, ret_addrlen
));
3547 if (put_user_u32(ret_addrlen
, target_addrlen_addr
)) {
3548 ret
= -TARGET_EFAULT
;
3554 /* do_socketpair() Must return target values and target errnos. */
3555 static abi_long
do_socketpair(int domain
, int type
, int protocol
,
3556 abi_ulong target_tab_addr
)
3561 target_to_host_sock_type(&type
);
3563 ret
= get_errno(socketpair(domain
, type
, protocol
, tab
));
3564 if (!is_error(ret
)) {
3565 if (put_user_s32(tab
[0], target_tab_addr
)
3566 || put_user_s32(tab
[1], target_tab_addr
+ sizeof(tab
[0])))
3567 ret
= -TARGET_EFAULT
;
3572 /* do_sendto() Must return target values and target errnos. */
3573 static abi_long
do_sendto(int fd
, abi_ulong msg
, size_t len
, int flags
,
3574 abi_ulong target_addr
, socklen_t addrlen
)
3578 void *copy_msg
= NULL
;
3581 if ((int)addrlen
< 0) {
3582 return -TARGET_EINVAL
;
3585 host_msg
= lock_user(VERIFY_READ
, msg
, len
, 1);
3587 return -TARGET_EFAULT
;
3588 if (fd_trans_target_to_host_data(fd
)) {
3589 copy_msg
= host_msg
;
3590 host_msg
= g_malloc(len
);
3591 memcpy(host_msg
, copy_msg
, len
);
3592 ret
= fd_trans_target_to_host_data(fd
)(host_msg
, len
);
3598 addr
= alloca(addrlen
+1);
3599 ret
= target_to_host_sockaddr(fd
, addr
, target_addr
, addrlen
);
3603 ret
= get_errno(safe_sendto(fd
, host_msg
, len
, flags
, addr
, addrlen
));
3605 ret
= get_errno(safe_sendto(fd
, host_msg
, len
, flags
, NULL
, 0));
3610 host_msg
= copy_msg
;
3612 unlock_user(host_msg
, msg
, 0);
3616 /* do_recvfrom() Must return target values and target errnos. */
3617 static abi_long
do_recvfrom(int fd
, abi_ulong msg
, size_t len
, int flags
,
3618 abi_ulong target_addr
,
3619 abi_ulong target_addrlen
)
3621 socklen_t addrlen
, ret_addrlen
;
3629 host_msg
= lock_user(VERIFY_WRITE
, msg
, len
, 0);
3631 return -TARGET_EFAULT
;
3635 if (get_user_u32(addrlen
, target_addrlen
)) {
3636 ret
= -TARGET_EFAULT
;
3639 if ((int)addrlen
< 0) {
3640 ret
= -TARGET_EINVAL
;
3643 addr
= alloca(addrlen
);
3644 ret_addrlen
= addrlen
;
3645 ret
= get_errno(safe_recvfrom(fd
, host_msg
, len
, flags
,
3646 addr
, &ret_addrlen
));
3648 addr
= NULL
; /* To keep compiler quiet. */
3649 addrlen
= 0; /* To keep compiler quiet. */
3650 ret
= get_errno(safe_recvfrom(fd
, host_msg
, len
, flags
, NULL
, 0));
3652 if (!is_error(ret
)) {
3653 if (fd_trans_host_to_target_data(fd
)) {
3655 trans
= fd_trans_host_to_target_data(fd
)(host_msg
, MIN(ret
, len
));
3656 if (is_error(trans
)) {
3662 host_to_target_sockaddr(target_addr
, addr
,
3663 MIN(addrlen
, ret_addrlen
));
3664 if (put_user_u32(ret_addrlen
, target_addrlen
)) {
3665 ret
= -TARGET_EFAULT
;
3669 unlock_user(host_msg
, msg
, len
);
3672 unlock_user(host_msg
, msg
, 0);
3677 #ifdef TARGET_NR_socketcall
3678 /* do_socketcall() must return target values and target errnos. */
3679 static abi_long
do_socketcall(int num
, abi_ulong vptr
)
3681 static const unsigned nargs
[] = { /* number of arguments per operation */
3682 [TARGET_SYS_SOCKET
] = 3, /* domain, type, protocol */
3683 [TARGET_SYS_BIND
] = 3, /* fd, addr, addrlen */
3684 [TARGET_SYS_CONNECT
] = 3, /* fd, addr, addrlen */
3685 [TARGET_SYS_LISTEN
] = 2, /* fd, backlog */
3686 [TARGET_SYS_ACCEPT
] = 3, /* fd, addr, addrlen */
3687 [TARGET_SYS_GETSOCKNAME
] = 3, /* fd, addr, addrlen */
3688 [TARGET_SYS_GETPEERNAME
] = 3, /* fd, addr, addrlen */
3689 [TARGET_SYS_SOCKETPAIR
] = 4, /* domain, type, protocol, tab */
3690 [TARGET_SYS_SEND
] = 4, /* fd, msg, len, flags */
3691 [TARGET_SYS_RECV
] = 4, /* fd, msg, len, flags */
3692 [TARGET_SYS_SENDTO
] = 6, /* fd, msg, len, flags, addr, addrlen */
3693 [TARGET_SYS_RECVFROM
] = 6, /* fd, msg, len, flags, addr, addrlen */
3694 [TARGET_SYS_SHUTDOWN
] = 2, /* fd, how */
3695 [TARGET_SYS_SETSOCKOPT
] = 5, /* fd, level, optname, optval, optlen */
3696 [TARGET_SYS_GETSOCKOPT
] = 5, /* fd, level, optname, optval, optlen */
3697 [TARGET_SYS_SENDMSG
] = 3, /* fd, msg, flags */
3698 [TARGET_SYS_RECVMSG
] = 3, /* fd, msg, flags */
3699 [TARGET_SYS_ACCEPT4
] = 4, /* fd, addr, addrlen, flags */
3700 [TARGET_SYS_RECVMMSG
] = 4, /* fd, msgvec, vlen, flags */
3701 [TARGET_SYS_SENDMMSG
] = 4, /* fd, msgvec, vlen, flags */
3703 abi_long a
[6]; /* max 6 args */
3706 /* check the range of the first argument num */
3707 /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
3708 if (num
< 1 || num
> TARGET_SYS_SENDMMSG
) {
3709 return -TARGET_EINVAL
;
3711 /* ensure we have space for args */
3712 if (nargs
[num
] > ARRAY_SIZE(a
)) {
3713 return -TARGET_EINVAL
;
3715 /* collect the arguments in a[] according to nargs[] */
3716 for (i
= 0; i
< nargs
[num
]; ++i
) {
3717 if (get_user_ual(a
[i
], vptr
+ i
* sizeof(abi_long
)) != 0) {
3718 return -TARGET_EFAULT
;
3721 /* now when we have the args, invoke the appropriate underlying function */
3723 case TARGET_SYS_SOCKET
: /* domain, type, protocol */
3724 return do_socket(a
[0], a
[1], a
[2]);
3725 case TARGET_SYS_BIND
: /* sockfd, addr, addrlen */
3726 return do_bind(a
[0], a
[1], a
[2]);
3727 case TARGET_SYS_CONNECT
: /* sockfd, addr, addrlen */
3728 return do_connect(a
[0], a
[1], a
[2]);
3729 case TARGET_SYS_LISTEN
: /* sockfd, backlog */
3730 return get_errno(listen(a
[0], a
[1]));
3731 case TARGET_SYS_ACCEPT
: /* sockfd, addr, addrlen */
3732 return do_accept4(a
[0], a
[1], a
[2], 0);
3733 case TARGET_SYS_GETSOCKNAME
: /* sockfd, addr, addrlen */
3734 return do_getsockname(a
[0], a
[1], a
[2]);
3735 case TARGET_SYS_GETPEERNAME
: /* sockfd, addr, addrlen */
3736 return do_getpeername(a
[0], a
[1], a
[2]);
3737 case TARGET_SYS_SOCKETPAIR
: /* domain, type, protocol, tab */
3738 return do_socketpair(a
[0], a
[1], a
[2], a
[3]);
3739 case TARGET_SYS_SEND
: /* sockfd, msg, len, flags */
3740 return do_sendto(a
[0], a
[1], a
[2], a
[3], 0, 0);
3741 case TARGET_SYS_RECV
: /* sockfd, msg, len, flags */
3742 return do_recvfrom(a
[0], a
[1], a
[2], a
[3], 0, 0);
3743 case TARGET_SYS_SENDTO
: /* sockfd, msg, len, flags, addr, addrlen */
3744 return do_sendto(a
[0], a
[1], a
[2], a
[3], a
[4], a
[5]);
3745 case TARGET_SYS_RECVFROM
: /* sockfd, msg, len, flags, addr, addrlen */
3746 return do_recvfrom(a
[0], a
[1], a
[2], a
[3], a
[4], a
[5]);
3747 case TARGET_SYS_SHUTDOWN
: /* sockfd, how */
3748 return get_errno(shutdown(a
[0], a
[1]));
3749 case TARGET_SYS_SETSOCKOPT
: /* sockfd, level, optname, optval, optlen */
3750 return do_setsockopt(a
[0], a
[1], a
[2], a
[3], a
[4]);
3751 case TARGET_SYS_GETSOCKOPT
: /* sockfd, level, optname, optval, optlen */
3752 return do_getsockopt(a
[0], a
[1], a
[2], a
[3], a
[4]);
3753 case TARGET_SYS_SENDMSG
: /* sockfd, msg, flags */
3754 return do_sendrecvmsg(a
[0], a
[1], a
[2], 1);
3755 case TARGET_SYS_RECVMSG
: /* sockfd, msg, flags */
3756 return do_sendrecvmsg(a
[0], a
[1], a
[2], 0);
3757 case TARGET_SYS_ACCEPT4
: /* sockfd, addr, addrlen, flags */
3758 return do_accept4(a
[0], a
[1], a
[2], a
[3]);
3759 case TARGET_SYS_RECVMMSG
: /* sockfd, msgvec, vlen, flags */
3760 return do_sendrecvmmsg(a
[0], a
[1], a
[2], a
[3], 0);
3761 case TARGET_SYS_SENDMMSG
: /* sockfd, msgvec, vlen, flags */
3762 return do_sendrecvmmsg(a
[0], a
[1], a
[2], a
[3], 1);
3764 qemu_log_mask(LOG_UNIMP
, "Unsupported socketcall: %d\n", num
);
3765 return -TARGET_EINVAL
;
3770 #define N_SHM_REGIONS 32
3772 static struct shm_region
{
3776 } shm_regions
[N_SHM_REGIONS
];
3778 #ifndef TARGET_SEMID64_DS
3779 /* asm-generic version of this struct */
3780 struct target_semid64_ds
3782 struct target_ipc_perm sem_perm
;
3783 abi_ulong sem_otime
;
3784 #if TARGET_ABI_BITS == 32
3785 abi_ulong __unused1
;
3787 abi_ulong sem_ctime
;
3788 #if TARGET_ABI_BITS == 32
3789 abi_ulong __unused2
;
3791 abi_ulong sem_nsems
;
3792 abi_ulong __unused3
;
3793 abi_ulong __unused4
;
3797 static inline abi_long
target_to_host_ipc_perm(struct ipc_perm
*host_ip
,
3798 abi_ulong target_addr
)
3800 struct target_ipc_perm
*target_ip
;
3801 struct target_semid64_ds
*target_sd
;
3803 if (!lock_user_struct(VERIFY_READ
, target_sd
, target_addr
, 1))
3804 return -TARGET_EFAULT
;
3805 target_ip
= &(target_sd
->sem_perm
);
3806 host_ip
->__key
= tswap32(target_ip
->__key
);
3807 host_ip
->uid
= tswap32(target_ip
->uid
);
3808 host_ip
->gid
= tswap32(target_ip
->gid
);
3809 host_ip
->cuid
= tswap32(target_ip
->cuid
);
3810 host_ip
->cgid
= tswap32(target_ip
->cgid
);
3811 #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3812 host_ip
->mode
= tswap32(target_ip
->mode
);
3814 host_ip
->mode
= tswap16(target_ip
->mode
);
3816 #if defined(TARGET_PPC)
3817 host_ip
->__seq
= tswap32(target_ip
->__seq
);
3819 host_ip
->__seq
= tswap16(target_ip
->__seq
);
3821 unlock_user_struct(target_sd
, target_addr
, 0);
3825 static inline abi_long
host_to_target_ipc_perm(abi_ulong target_addr
,
3826 struct ipc_perm
*host_ip
)
3828 struct target_ipc_perm
*target_ip
;
3829 struct target_semid64_ds
*target_sd
;
3831 if (!lock_user_struct(VERIFY_WRITE
, target_sd
, target_addr
, 0))
3832 return -TARGET_EFAULT
;
3833 target_ip
= &(target_sd
->sem_perm
);
3834 target_ip
->__key
= tswap32(host_ip
->__key
);
3835 target_ip
->uid
= tswap32(host_ip
->uid
);
3836 target_ip
->gid
= tswap32(host_ip
->gid
);
3837 target_ip
->cuid
= tswap32(host_ip
->cuid
);
3838 target_ip
->cgid
= tswap32(host_ip
->cgid
);
3839 #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3840 target_ip
->mode
= tswap32(host_ip
->mode
);
3842 target_ip
->mode
= tswap16(host_ip
->mode
);
3844 #if defined(TARGET_PPC)
3845 target_ip
->__seq
= tswap32(host_ip
->__seq
);
3847 target_ip
->__seq
= tswap16(host_ip
->__seq
);
3849 unlock_user_struct(target_sd
, target_addr
, 1);
3853 static inline abi_long
target_to_host_semid_ds(struct semid_ds
*host_sd
,
3854 abi_ulong target_addr
)
3856 struct target_semid64_ds
*target_sd
;
3858 if (!lock_user_struct(VERIFY_READ
, target_sd
, target_addr
, 1))
3859 return -TARGET_EFAULT
;
3860 if (target_to_host_ipc_perm(&(host_sd
->sem_perm
),target_addr
))
3861 return -TARGET_EFAULT
;
3862 host_sd
->sem_nsems
= tswapal(target_sd
->sem_nsems
);
3863 host_sd
->sem_otime
= tswapal(target_sd
->sem_otime
);
3864 host_sd
->sem_ctime
= tswapal(target_sd
->sem_ctime
);
3865 unlock_user_struct(target_sd
, target_addr
, 0);
3869 static inline abi_long
host_to_target_semid_ds(abi_ulong target_addr
,
3870 struct semid_ds
*host_sd
)
3872 struct target_semid64_ds
*target_sd
;
3874 if (!lock_user_struct(VERIFY_WRITE
, target_sd
, target_addr
, 0))
3875 return -TARGET_EFAULT
;
3876 if (host_to_target_ipc_perm(target_addr
,&(host_sd
->sem_perm
)))
3877 return -TARGET_EFAULT
;
3878 target_sd
->sem_nsems
= tswapal(host_sd
->sem_nsems
);
3879 target_sd
->sem_otime
= tswapal(host_sd
->sem_otime
);
3880 target_sd
->sem_ctime
= tswapal(host_sd
->sem_ctime
);
3881 unlock_user_struct(target_sd
, target_addr
, 1);
3885 struct target_seminfo
{
3898 static inline abi_long
host_to_target_seminfo(abi_ulong target_addr
,
3899 struct seminfo
*host_seminfo
)
3901 struct target_seminfo
*target_seminfo
;
3902 if (!lock_user_struct(VERIFY_WRITE
, target_seminfo
, target_addr
, 0))
3903 return -TARGET_EFAULT
;
3904 __put_user(host_seminfo
->semmap
, &target_seminfo
->semmap
);
3905 __put_user(host_seminfo
->semmni
, &target_seminfo
->semmni
);
3906 __put_user(host_seminfo
->semmns
, &target_seminfo
->semmns
);
3907 __put_user(host_seminfo
->semmnu
, &target_seminfo
->semmnu
);
3908 __put_user(host_seminfo
->semmsl
, &target_seminfo
->semmsl
);
3909 __put_user(host_seminfo
->semopm
, &target_seminfo
->semopm
);
3910 __put_user(host_seminfo
->semume
, &target_seminfo
->semume
);
3911 __put_user(host_seminfo
->semusz
, &target_seminfo
->semusz
);
3912 __put_user(host_seminfo
->semvmx
, &target_seminfo
->semvmx
);
3913 __put_user(host_seminfo
->semaem
, &target_seminfo
->semaem
);
3914 unlock_user_struct(target_seminfo
, target_addr
, 1);
3920 struct semid_ds
*buf
;
3921 unsigned short *array
;
3922 struct seminfo
*__buf
;
3925 union target_semun
{
3932 static inline abi_long
target_to_host_semarray(int semid
, unsigned short **host_array
,
3933 abi_ulong target_addr
)
3936 unsigned short *array
;
3938 struct semid_ds semid_ds
;
3941 semun
.buf
= &semid_ds
;
3943 ret
= semctl(semid
, 0, IPC_STAT
, semun
);
3945 return get_errno(ret
);
3947 nsems
= semid_ds
.sem_nsems
;
3949 *host_array
= g_try_new(unsigned short, nsems
);
3951 return -TARGET_ENOMEM
;
3953 array
= lock_user(VERIFY_READ
, target_addr
,
3954 nsems
*sizeof(unsigned short), 1);
3956 g_free(*host_array
);
3957 return -TARGET_EFAULT
;
3960 for(i
=0; i
<nsems
; i
++) {
3961 __get_user((*host_array
)[i
], &array
[i
]);
3963 unlock_user(array
, target_addr
, 0);
3968 static inline abi_long
host_to_target_semarray(int semid
, abi_ulong target_addr
,
3969 unsigned short **host_array
)
3972 unsigned short *array
;
3974 struct semid_ds semid_ds
;
3977 semun
.buf
= &semid_ds
;
3979 ret
= semctl(semid
, 0, IPC_STAT
, semun
);
3981 return get_errno(ret
);
3983 nsems
= semid_ds
.sem_nsems
;
3985 array
= lock_user(VERIFY_WRITE
, target_addr
,
3986 nsems
*sizeof(unsigned short), 0);
3988 return -TARGET_EFAULT
;
3990 for(i
=0; i
<nsems
; i
++) {
3991 __put_user((*host_array
)[i
], &array
[i
]);
3993 g_free(*host_array
);
3994 unlock_user(array
, target_addr
, 1);
3999 static inline abi_long
do_semctl(int semid
, int semnum
, int cmd
,
4000 abi_ulong target_arg
)
4002 union target_semun target_su
= { .buf
= target_arg
};
4004 struct semid_ds dsarg
;
4005 unsigned short *array
= NULL
;
4006 struct seminfo seminfo
;
4007 abi_long ret
= -TARGET_EINVAL
;
4014 /* In 64 bit cross-endian situations, we will erroneously pick up
4015 * the wrong half of the union for the "val" element. To rectify
4016 * this, the entire 8-byte structure is byteswapped, followed by
4017 * a swap of the 4 byte val field. In other cases, the data is
4018 * already in proper host byte order. */
4019 if (sizeof(target_su
.val
) != (sizeof(target_su
.buf
))) {
4020 target_su
.buf
= tswapal(target_su
.buf
);
4021 arg
.val
= tswap32(target_su
.val
);
4023 arg
.val
= target_su
.val
;
4025 ret
= get_errno(semctl(semid
, semnum
, cmd
, arg
));
4029 err
= target_to_host_semarray(semid
, &array
, target_su
.array
);
4033 ret
= get_errno(semctl(semid
, semnum
, cmd
, arg
));
4034 err
= host_to_target_semarray(semid
, target_su
.array
, &array
);
4041 err
= target_to_host_semid_ds(&dsarg
, target_su
.buf
);
4045 ret
= get_errno(semctl(semid
, semnum
, cmd
, arg
));
4046 err
= host_to_target_semid_ds(target_su
.buf
, &dsarg
);
4052 arg
.__buf
= &seminfo
;
4053 ret
= get_errno(semctl(semid
, semnum
, cmd
, arg
));
4054 err
= host_to_target_seminfo(target_su
.__buf
, &seminfo
);
4062 ret
= get_errno(semctl(semid
, semnum
, cmd
, NULL
));
4069 struct target_sembuf
{
4070 unsigned short sem_num
;
4075 static inline abi_long
target_to_host_sembuf(struct sembuf
*host_sembuf
,
4076 abi_ulong target_addr
,
4079 struct target_sembuf
*target_sembuf
;
4082 target_sembuf
= lock_user(VERIFY_READ
, target_addr
,
4083 nsops
*sizeof(struct target_sembuf
), 1);
4085 return -TARGET_EFAULT
;
4087 for(i
=0; i
<nsops
; i
++) {
4088 __get_user(host_sembuf
[i
].sem_num
, &target_sembuf
[i
].sem_num
);
4089 __get_user(host_sembuf
[i
].sem_op
, &target_sembuf
[i
].sem_op
);
4090 __get_user(host_sembuf
[i
].sem_flg
, &target_sembuf
[i
].sem_flg
);
4093 unlock_user(target_sembuf
, target_addr
, 0);
4098 #if defined(TARGET_NR_ipc) || defined(TARGET_NR_semop) || \
4099 defined(TARGET_NR_semtimedop) || defined(TARGET_NR_semtimedop_time64)
4102 * This macro is required to handle the s390 variants, which passes the
4103 * arguments in a different order than default.
4106 #define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
4107 (__nsops), (__timeout), (__sops)
4109 #define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
4110 (__nsops), 0, (__sops), (__timeout)
4113 static inline abi_long
do_semtimedop(int semid
,
4116 abi_long timeout
, bool time64
)
4118 struct sembuf
*sops
;
4119 struct timespec ts
, *pts
= NULL
;
4125 if (target_to_host_timespec64(pts
, timeout
)) {
4126 return -TARGET_EFAULT
;
4129 if (target_to_host_timespec(pts
, timeout
)) {
4130 return -TARGET_EFAULT
;
4135 if (nsops
> TARGET_SEMOPM
) {
4136 return -TARGET_E2BIG
;
4139 sops
= g_new(struct sembuf
, nsops
);
4141 if (target_to_host_sembuf(sops
, ptr
, nsops
)) {
4143 return -TARGET_EFAULT
;
4146 ret
= -TARGET_ENOSYS
;
4147 #ifdef __NR_semtimedop
4148 ret
= get_errno(safe_semtimedop(semid
, sops
, nsops
, pts
));
4151 if (ret
== -TARGET_ENOSYS
) {
4152 ret
= get_errno(safe_ipc(IPCOP_semtimedop
, semid
,
4153 SEMTIMEDOP_IPC_ARGS(nsops
, sops
, (long)pts
)));
4161 struct target_msqid_ds
4163 struct target_ipc_perm msg_perm
;
4164 abi_ulong msg_stime
;
4165 #if TARGET_ABI_BITS == 32
4166 abi_ulong __unused1
;
4168 abi_ulong msg_rtime
;
4169 #if TARGET_ABI_BITS == 32
4170 abi_ulong __unused2
;
4172 abi_ulong msg_ctime
;
4173 #if TARGET_ABI_BITS == 32
4174 abi_ulong __unused3
;
4176 abi_ulong __msg_cbytes
;
4178 abi_ulong msg_qbytes
;
4179 abi_ulong msg_lspid
;
4180 abi_ulong msg_lrpid
;
4181 abi_ulong __unused4
;
4182 abi_ulong __unused5
;
4185 static inline abi_long
target_to_host_msqid_ds(struct msqid_ds
*host_md
,
4186 abi_ulong target_addr
)
4188 struct target_msqid_ds
*target_md
;
4190 if (!lock_user_struct(VERIFY_READ
, target_md
, target_addr
, 1))
4191 return -TARGET_EFAULT
;
4192 if (target_to_host_ipc_perm(&(host_md
->msg_perm
),target_addr
))
4193 return -TARGET_EFAULT
;
4194 host_md
->msg_stime
= tswapal(target_md
->msg_stime
);
4195 host_md
->msg_rtime
= tswapal(target_md
->msg_rtime
);
4196 host_md
->msg_ctime
= tswapal(target_md
->msg_ctime
);
4197 host_md
->__msg_cbytes
= tswapal(target_md
->__msg_cbytes
);
4198 host_md
->msg_qnum
= tswapal(target_md
->msg_qnum
);
4199 host_md
->msg_qbytes
= tswapal(target_md
->msg_qbytes
);
4200 host_md
->msg_lspid
= tswapal(target_md
->msg_lspid
);
4201 host_md
->msg_lrpid
= tswapal(target_md
->msg_lrpid
);
4202 unlock_user_struct(target_md
, target_addr
, 0);
4206 static inline abi_long
host_to_target_msqid_ds(abi_ulong target_addr
,
4207 struct msqid_ds
*host_md
)
4209 struct target_msqid_ds
*target_md
;
4211 if (!lock_user_struct(VERIFY_WRITE
, target_md
, target_addr
, 0))
4212 return -TARGET_EFAULT
;
4213 if (host_to_target_ipc_perm(target_addr
,&(host_md
->msg_perm
)))
4214 return -TARGET_EFAULT
;
4215 target_md
->msg_stime
= tswapal(host_md
->msg_stime
);
4216 target_md
->msg_rtime
= tswapal(host_md
->msg_rtime
);
4217 target_md
->msg_ctime
= tswapal(host_md
->msg_ctime
);
4218 target_md
->__msg_cbytes
= tswapal(host_md
->__msg_cbytes
);
4219 target_md
->msg_qnum
= tswapal(host_md
->msg_qnum
);
4220 target_md
->msg_qbytes
= tswapal(host_md
->msg_qbytes
);
4221 target_md
->msg_lspid
= tswapal(host_md
->msg_lspid
);
4222 target_md
->msg_lrpid
= tswapal(host_md
->msg_lrpid
);
4223 unlock_user_struct(target_md
, target_addr
, 1);
4227 struct target_msginfo
{
4235 unsigned short int msgseg
;
4238 static inline abi_long
host_to_target_msginfo(abi_ulong target_addr
,
4239 struct msginfo
*host_msginfo
)
4241 struct target_msginfo
*target_msginfo
;
4242 if (!lock_user_struct(VERIFY_WRITE
, target_msginfo
, target_addr
, 0))
4243 return -TARGET_EFAULT
;
4244 __put_user(host_msginfo
->msgpool
, &target_msginfo
->msgpool
);
4245 __put_user(host_msginfo
->msgmap
, &target_msginfo
->msgmap
);
4246 __put_user(host_msginfo
->msgmax
, &target_msginfo
->msgmax
);
4247 __put_user(host_msginfo
->msgmnb
, &target_msginfo
->msgmnb
);
4248 __put_user(host_msginfo
->msgmni
, &target_msginfo
->msgmni
);
4249 __put_user(host_msginfo
->msgssz
, &target_msginfo
->msgssz
);
4250 __put_user(host_msginfo
->msgtql
, &target_msginfo
->msgtql
);
4251 __put_user(host_msginfo
->msgseg
, &target_msginfo
->msgseg
);
4252 unlock_user_struct(target_msginfo
, target_addr
, 1);
4256 static inline abi_long
do_msgctl(int msgid
, int cmd
, abi_long ptr
)
4258 struct msqid_ds dsarg
;
4259 struct msginfo msginfo
;
4260 abi_long ret
= -TARGET_EINVAL
;
4268 if (target_to_host_msqid_ds(&dsarg
,ptr
))
4269 return -TARGET_EFAULT
;
4270 ret
= get_errno(msgctl(msgid
, cmd
, &dsarg
));
4271 if (host_to_target_msqid_ds(ptr
,&dsarg
))
4272 return -TARGET_EFAULT
;
4275 ret
= get_errno(msgctl(msgid
, cmd
, NULL
));
4279 ret
= get_errno(msgctl(msgid
, cmd
, (struct msqid_ds
*)&msginfo
));
4280 if (host_to_target_msginfo(ptr
, &msginfo
))
4281 return -TARGET_EFAULT
;
4288 struct target_msgbuf
{
4293 static inline abi_long
do_msgsnd(int msqid
, abi_long msgp
,
4294 ssize_t msgsz
, int msgflg
)
4296 struct target_msgbuf
*target_mb
;
4297 struct msgbuf
*host_mb
;
4301 return -TARGET_EINVAL
;
4304 if (!lock_user_struct(VERIFY_READ
, target_mb
, msgp
, 0))
4305 return -TARGET_EFAULT
;
4306 host_mb
= g_try_malloc(msgsz
+ sizeof(long));
4308 unlock_user_struct(target_mb
, msgp
, 0);
4309 return -TARGET_ENOMEM
;
4311 host_mb
->mtype
= (abi_long
) tswapal(target_mb
->mtype
);
4312 memcpy(host_mb
->mtext
, target_mb
->mtext
, msgsz
);
4313 ret
= -TARGET_ENOSYS
;
4315 ret
= get_errno(safe_msgsnd(msqid
, host_mb
, msgsz
, msgflg
));
4318 if (ret
== -TARGET_ENOSYS
) {
4320 ret
= get_errno(safe_ipc(IPCOP_msgsnd
, msqid
, msgsz
, msgflg
,
4323 ret
= get_errno(safe_ipc(IPCOP_msgsnd
, msqid
, msgsz
, msgflg
,
4329 unlock_user_struct(target_mb
, msgp
, 0);
4335 #if defined(__sparc__)
4336 /* SPARC for msgrcv it does not use the kludge on final 2 arguments. */
4337 #define MSGRCV_ARGS(__msgp, __msgtyp) __msgp, __msgtyp
4338 #elif defined(__s390x__)
4339 /* The s390 sys_ipc variant has only five parameters. */
4340 #define MSGRCV_ARGS(__msgp, __msgtyp) \
4341 ((long int[]){(long int)__msgp, __msgtyp})
4343 #define MSGRCV_ARGS(__msgp, __msgtyp) \
4344 ((long int[]){(long int)__msgp, __msgtyp}), 0
4348 static inline abi_long
do_msgrcv(int msqid
, abi_long msgp
,
4349 ssize_t msgsz
, abi_long msgtyp
,
4352 struct target_msgbuf
*target_mb
;
4354 struct msgbuf
*host_mb
;
4358 return -TARGET_EINVAL
;
4361 if (!lock_user_struct(VERIFY_WRITE
, target_mb
, msgp
, 0))
4362 return -TARGET_EFAULT
;
4364 host_mb
= g_try_malloc(msgsz
+ sizeof(long));
4366 ret
= -TARGET_ENOMEM
;
4369 ret
= -TARGET_ENOSYS
;
4371 ret
= get_errno(safe_msgrcv(msqid
, host_mb
, msgsz
, msgtyp
, msgflg
));
4374 if (ret
== -TARGET_ENOSYS
) {
4375 ret
= get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv
), msqid
, msgsz
,
4376 msgflg
, MSGRCV_ARGS(host_mb
, msgtyp
)));
4381 abi_ulong target_mtext_addr
= msgp
+ sizeof(abi_ulong
);
4382 target_mtext
= lock_user(VERIFY_WRITE
, target_mtext_addr
, ret
, 0);
4383 if (!target_mtext
) {
4384 ret
= -TARGET_EFAULT
;
4387 memcpy(target_mb
->mtext
, host_mb
->mtext
, ret
);
4388 unlock_user(target_mtext
, target_mtext_addr
, ret
);
4391 target_mb
->mtype
= tswapal(host_mb
->mtype
);
4395 unlock_user_struct(target_mb
, msgp
, 1);
4400 static inline abi_long
target_to_host_shmid_ds(struct shmid_ds
*host_sd
,
4401 abi_ulong target_addr
)
4403 struct target_shmid_ds
*target_sd
;
4405 if (!lock_user_struct(VERIFY_READ
, target_sd
, target_addr
, 1))
4406 return -TARGET_EFAULT
;
4407 if (target_to_host_ipc_perm(&(host_sd
->shm_perm
), target_addr
))
4408 return -TARGET_EFAULT
;
4409 __get_user(host_sd
->shm_segsz
, &target_sd
->shm_segsz
);
4410 __get_user(host_sd
->shm_atime
, &target_sd
->shm_atime
);
4411 __get_user(host_sd
->shm_dtime
, &target_sd
->shm_dtime
);
4412 __get_user(host_sd
->shm_ctime
, &target_sd
->shm_ctime
);
4413 __get_user(host_sd
->shm_cpid
, &target_sd
->shm_cpid
);
4414 __get_user(host_sd
->shm_lpid
, &target_sd
->shm_lpid
);
4415 __get_user(host_sd
->shm_nattch
, &target_sd
->shm_nattch
);
4416 unlock_user_struct(target_sd
, target_addr
, 0);
4420 static inline abi_long
host_to_target_shmid_ds(abi_ulong target_addr
,
4421 struct shmid_ds
*host_sd
)
4423 struct target_shmid_ds
*target_sd
;
4425 if (!lock_user_struct(VERIFY_WRITE
, target_sd
, target_addr
, 0))
4426 return -TARGET_EFAULT
;
4427 if (host_to_target_ipc_perm(target_addr
, &(host_sd
->shm_perm
)))
4428 return -TARGET_EFAULT
;
4429 __put_user(host_sd
->shm_segsz
, &target_sd
->shm_segsz
);
4430 __put_user(host_sd
->shm_atime
, &target_sd
->shm_atime
);
4431 __put_user(host_sd
->shm_dtime
, &target_sd
->shm_dtime
);
4432 __put_user(host_sd
->shm_ctime
, &target_sd
->shm_ctime
);
4433 __put_user(host_sd
->shm_cpid
, &target_sd
->shm_cpid
);
4434 __put_user(host_sd
->shm_lpid
, &target_sd
->shm_lpid
);
4435 __put_user(host_sd
->shm_nattch
, &target_sd
->shm_nattch
);
4436 unlock_user_struct(target_sd
, target_addr
, 1);
4440 struct target_shminfo
{
4448 static inline abi_long
host_to_target_shminfo(abi_ulong target_addr
,
4449 struct shminfo
*host_shminfo
)
4451 struct target_shminfo
*target_shminfo
;
4452 if (!lock_user_struct(VERIFY_WRITE
, target_shminfo
, target_addr
, 0))
4453 return -TARGET_EFAULT
;
4454 __put_user(host_shminfo
->shmmax
, &target_shminfo
->shmmax
);
4455 __put_user(host_shminfo
->shmmin
, &target_shminfo
->shmmin
);
4456 __put_user(host_shminfo
->shmmni
, &target_shminfo
->shmmni
);
4457 __put_user(host_shminfo
->shmseg
, &target_shminfo
->shmseg
);
4458 __put_user(host_shminfo
->shmall
, &target_shminfo
->shmall
);
4459 unlock_user_struct(target_shminfo
, target_addr
, 1);
4463 struct target_shm_info
{
4468 abi_ulong swap_attempts
;
4469 abi_ulong swap_successes
;
4472 static inline abi_long
host_to_target_shm_info(abi_ulong target_addr
,
4473 struct shm_info
*host_shm_info
)
4475 struct target_shm_info
*target_shm_info
;
4476 if (!lock_user_struct(VERIFY_WRITE
, target_shm_info
, target_addr
, 0))
4477 return -TARGET_EFAULT
;
4478 __put_user(host_shm_info
->used_ids
, &target_shm_info
->used_ids
);
4479 __put_user(host_shm_info
->shm_tot
, &target_shm_info
->shm_tot
);
4480 __put_user(host_shm_info
->shm_rss
, &target_shm_info
->shm_rss
);
4481 __put_user(host_shm_info
->shm_swp
, &target_shm_info
->shm_swp
);
4482 __put_user(host_shm_info
->swap_attempts
, &target_shm_info
->swap_attempts
);
4483 __put_user(host_shm_info
->swap_successes
, &target_shm_info
->swap_successes
);
4484 unlock_user_struct(target_shm_info
, target_addr
, 1);
4488 static inline abi_long
do_shmctl(int shmid
, int cmd
, abi_long buf
)
4490 struct shmid_ds dsarg
;
4491 struct shminfo shminfo
;
4492 struct shm_info shm_info
;
4493 abi_long ret
= -TARGET_EINVAL
;
4501 if (target_to_host_shmid_ds(&dsarg
, buf
))
4502 return -TARGET_EFAULT
;
4503 ret
= get_errno(shmctl(shmid
, cmd
, &dsarg
));
4504 if (host_to_target_shmid_ds(buf
, &dsarg
))
4505 return -TARGET_EFAULT
;
4508 ret
= get_errno(shmctl(shmid
, cmd
, (struct shmid_ds
*)&shminfo
));
4509 if (host_to_target_shminfo(buf
, &shminfo
))
4510 return -TARGET_EFAULT
;
4513 ret
= get_errno(shmctl(shmid
, cmd
, (struct shmid_ds
*)&shm_info
));
4514 if (host_to_target_shm_info(buf
, &shm_info
))
4515 return -TARGET_EFAULT
;
4520 ret
= get_errno(shmctl(shmid
, cmd
, NULL
));
4527 #ifndef TARGET_FORCE_SHMLBA
4528 /* For most architectures, SHMLBA is the same as the page size;
4529 * some architectures have larger values, in which case they should
4530 * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
4531 * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
4532 * and defining its own value for SHMLBA.
4534 * The kernel also permits SHMLBA to be set by the architecture to a
4535 * value larger than the page size without setting __ARCH_FORCE_SHMLBA;
4536 * this means that addresses are rounded to the large size if
4537 * SHM_RND is set but addresses not aligned to that size are not rejected
4538 * as long as they are at least page-aligned. Since the only architecture
4539 * which uses this is ia64 this code doesn't provide for that oddity.
4541 static inline abi_ulong
target_shmlba(CPUArchState
*cpu_env
)
4543 return TARGET_PAGE_SIZE
;
4547 static abi_ulong
do_shmat(CPUArchState
*cpu_env
, int shmid
,
4548 abi_ulong shmaddr
, int shmflg
)
4550 CPUState
*cpu
= env_cpu(cpu_env
);
4553 struct shmid_ds shm_info
;
4557 /* shmat pointers are always untagged */
4559 /* find out the length of the shared memory segment */
4560 ret
= get_errno(shmctl(shmid
, IPC_STAT
, &shm_info
));
4561 if (is_error(ret
)) {
4562 /* can't get length, bail out */
4566 shmlba
= target_shmlba(cpu_env
);
4568 if (shmaddr
& (shmlba
- 1)) {
4569 if (shmflg
& SHM_RND
) {
4570 shmaddr
&= ~(shmlba
- 1);
4572 return -TARGET_EINVAL
;
4575 if (!guest_range_valid_untagged(shmaddr
, shm_info
.shm_segsz
)) {
4576 return -TARGET_EINVAL
;
4582 * We're mapping shared memory, so ensure we generate code for parallel
4583 * execution and flush old translations. This will work up to the level
4584 * supported by the host -- anything that requires EXCP_ATOMIC will not
4585 * be atomic with respect to an external process.
4587 if (!(cpu
->tcg_cflags
& CF_PARALLEL
)) {
4588 cpu
->tcg_cflags
|= CF_PARALLEL
;
4593 host_raddr
= shmat(shmid
, (void *)g2h_untagged(shmaddr
), shmflg
);
4595 abi_ulong mmap_start
;
4597 /* In order to use the host shmat, we need to honor host SHMLBA. */
4598 mmap_start
= mmap_find_vma(0, shm_info
.shm_segsz
, MAX(SHMLBA
, shmlba
));
4600 if (mmap_start
== -1) {
4602 host_raddr
= (void *)-1;
4604 host_raddr
= shmat(shmid
, g2h_untagged(mmap_start
),
4605 shmflg
| SHM_REMAP
);
4608 if (host_raddr
== (void *)-1) {
4610 return get_errno((intptr_t)host_raddr
);
4612 raddr
= h2g((uintptr_t)host_raddr
);
4614 page_set_flags(raddr
, raddr
+ shm_info
.shm_segsz
- 1,
4615 PAGE_VALID
| PAGE_RESET
| PAGE_READ
|
4616 (shmflg
& SHM_RDONLY
? 0 : PAGE_WRITE
));
4618 for (i
= 0; i
< N_SHM_REGIONS
; i
++) {
4619 if (!shm_regions
[i
].in_use
) {
4620 shm_regions
[i
].in_use
= true;
4621 shm_regions
[i
].start
= raddr
;
4622 shm_regions
[i
].size
= shm_info
.shm_segsz
;
4631 static inline abi_long
do_shmdt(abi_ulong shmaddr
)
4636 /* shmdt pointers are always untagged */
4640 for (i
= 0; i
< N_SHM_REGIONS
; ++i
) {
4641 if (shm_regions
[i
].in_use
&& shm_regions
[i
].start
== shmaddr
) {
4642 shm_regions
[i
].in_use
= false;
4643 page_set_flags(shmaddr
, shmaddr
+ shm_regions
[i
].size
- 1, 0);
4647 rv
= get_errno(shmdt(g2h_untagged(shmaddr
)));
4654 #ifdef TARGET_NR_ipc
4655 /* ??? This only works with linear mappings. */
4656 /* do_ipc() must return target values and target errnos. */
4657 static abi_long
do_ipc(CPUArchState
*cpu_env
,
4658 unsigned int call
, abi_long first
,
4659 abi_long second
, abi_long third
,
4660 abi_long ptr
, abi_long fifth
)
4665 version
= call
>> 16;
4670 ret
= do_semtimedop(first
, ptr
, second
, 0, false);
4672 case IPCOP_semtimedop
:
4674 * The s390 sys_ipc variant has only five parameters instead of six
4675 * (as for default variant) and the only difference is the handling of
4676 * SEMTIMEDOP where on s390 the third parameter is used as a pointer
4677 * to a struct timespec where the generic variant uses fifth parameter.
4679 #if defined(TARGET_S390X)
4680 ret
= do_semtimedop(first
, ptr
, second
, third
, TARGET_ABI_BITS
== 64);
4682 ret
= do_semtimedop(first
, ptr
, second
, fifth
, TARGET_ABI_BITS
== 64);
4687 ret
= get_errno(semget(first
, second
, third
));
4690 case IPCOP_semctl
: {
4691 /* The semun argument to semctl is passed by value, so dereference the
4694 get_user_ual(atptr
, ptr
);
4695 ret
= do_semctl(first
, second
, third
, atptr
);
4700 ret
= get_errno(msgget(first
, second
));
4704 ret
= do_msgsnd(first
, ptr
, second
, third
);
4708 ret
= do_msgctl(first
, second
, ptr
);
4715 struct target_ipc_kludge
{
4720 if (!lock_user_struct(VERIFY_READ
, tmp
, ptr
, 1)) {
4721 ret
= -TARGET_EFAULT
;
4725 ret
= do_msgrcv(first
, tswapal(tmp
->msgp
), second
, tswapal(tmp
->msgtyp
), third
);
4727 unlock_user_struct(tmp
, ptr
, 0);
4731 ret
= do_msgrcv(first
, ptr
, second
, fifth
, third
);
4740 raddr
= do_shmat(cpu_env
, first
, ptr
, second
);
4741 if (is_error(raddr
))
4742 return get_errno(raddr
);
4743 if (put_user_ual(raddr
, third
))
4744 return -TARGET_EFAULT
;
4748 ret
= -TARGET_EINVAL
;
4753 ret
= do_shmdt(ptr
);
4757 /* IPC_* flag values are the same on all linux platforms */
4758 ret
= get_errno(shmget(first
, second
, third
));
4761 /* IPC_* and SHM_* command values are the same on all linux platforms */
4763 ret
= do_shmctl(first
, second
, ptr
);
4766 qemu_log_mask(LOG_UNIMP
, "Unsupported ipc call: %d (version %d)\n",
4768 ret
= -TARGET_ENOSYS
;
4775 /* kernel structure types definitions */
4777 #define STRUCT(name, ...) STRUCT_ ## name,
4778 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
4780 #include "syscall_types.h"
4784 #undef STRUCT_SPECIAL
4786 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
4787 #define STRUCT_SPECIAL(name)
4788 #include "syscall_types.h"
4790 #undef STRUCT_SPECIAL
4792 #define MAX_STRUCT_SIZE 4096
4794 #ifdef CONFIG_FIEMAP
4795 /* So fiemap access checks don't overflow on 32 bit systems.
4796 * This is very slightly smaller than the limit imposed by
4797 * the underlying kernel.
4799 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4800 / sizeof(struct fiemap_extent))
4802 static abi_long
do_ioctl_fs_ioc_fiemap(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
4803 int fd
, int cmd
, abi_long arg
)
4805 /* The parameter for this ioctl is a struct fiemap followed
4806 * by an array of struct fiemap_extent whose size is set
4807 * in fiemap->fm_extent_count. The array is filled in by the
4810 int target_size_in
, target_size_out
;
4812 const argtype
*arg_type
= ie
->arg_type
;
4813 const argtype extent_arg_type
[] = { MK_STRUCT(STRUCT_fiemap_extent
) };
4816 int i
, extent_size
= thunk_type_size(extent_arg_type
, 0);
4820 assert(arg_type
[0] == TYPE_PTR
);
4821 assert(ie
->access
== IOC_RW
);
4823 target_size_in
= thunk_type_size(arg_type
, 0);
4824 argptr
= lock_user(VERIFY_READ
, arg
, target_size_in
, 1);
4826 return -TARGET_EFAULT
;
4828 thunk_convert(buf_temp
, argptr
, arg_type
, THUNK_HOST
);
4829 unlock_user(argptr
, arg
, 0);
4830 fm
= (struct fiemap
*)buf_temp
;
4831 if (fm
->fm_extent_count
> FIEMAP_MAX_EXTENTS
) {
4832 return -TARGET_EINVAL
;
4835 outbufsz
= sizeof (*fm
) +
4836 (sizeof(struct fiemap_extent
) * fm
->fm_extent_count
);
4838 if (outbufsz
> MAX_STRUCT_SIZE
) {
4839 /* We can't fit all the extents into the fixed size buffer.
4840 * Allocate one that is large enough and use it instead.
4842 fm
= g_try_malloc(outbufsz
);
4844 return -TARGET_ENOMEM
;
4846 memcpy(fm
, buf_temp
, sizeof(struct fiemap
));
4849 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, fm
));
4850 if (!is_error(ret
)) {
4851 target_size_out
= target_size_in
;
4852 /* An extent_count of 0 means we were only counting the extents
4853 * so there are no structs to copy
4855 if (fm
->fm_extent_count
!= 0) {
4856 target_size_out
+= fm
->fm_mapped_extents
* extent_size
;
4858 argptr
= lock_user(VERIFY_WRITE
, arg
, target_size_out
, 0);
4860 ret
= -TARGET_EFAULT
;
4862 /* Convert the struct fiemap */
4863 thunk_convert(argptr
, fm
, arg_type
, THUNK_TARGET
);
4864 if (fm
->fm_extent_count
!= 0) {
4865 p
= argptr
+ target_size_in
;
4866 /* ...and then all the struct fiemap_extents */
4867 for (i
= 0; i
< fm
->fm_mapped_extents
; i
++) {
4868 thunk_convert(p
, &fm
->fm_extents
[i
], extent_arg_type
,
4873 unlock_user(argptr
, arg
, target_size_out
);
4883 static abi_long
do_ioctl_ifconf(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
4884 int fd
, int cmd
, abi_long arg
)
4886 const argtype
*arg_type
= ie
->arg_type
;
4890 struct ifconf
*host_ifconf
;
4892 const argtype ifreq_arg_type
[] = { MK_STRUCT(STRUCT_sockaddr_ifreq
) };
4893 const argtype ifreq_max_type
[] = { MK_STRUCT(STRUCT_ifmap_ifreq
) };
4894 int target_ifreq_size
;
4899 abi_long target_ifc_buf
;
4903 assert(arg_type
[0] == TYPE_PTR
);
4904 assert(ie
->access
== IOC_RW
);
4907 target_size
= thunk_type_size(arg_type
, 0);
4909 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
4911 return -TARGET_EFAULT
;
4912 thunk_convert(buf_temp
, argptr
, arg_type
, THUNK_HOST
);
4913 unlock_user(argptr
, arg
, 0);
4915 host_ifconf
= (struct ifconf
*)(unsigned long)buf_temp
;
4916 target_ifc_buf
= (abi_long
)(unsigned long)host_ifconf
->ifc_buf
;
4917 target_ifreq_size
= thunk_type_size(ifreq_max_type
, 0);
4919 if (target_ifc_buf
!= 0) {
4920 target_ifc_len
= host_ifconf
->ifc_len
;
4921 nb_ifreq
= target_ifc_len
/ target_ifreq_size
;
4922 host_ifc_len
= nb_ifreq
* sizeof(struct ifreq
);
4924 outbufsz
= sizeof(*host_ifconf
) + host_ifc_len
;
4925 if (outbufsz
> MAX_STRUCT_SIZE
) {
4927 * We can't fit all the extents into the fixed size buffer.
4928 * Allocate one that is large enough and use it instead.
4930 host_ifconf
= g_try_malloc(outbufsz
);
4932 return -TARGET_ENOMEM
;
4934 memcpy(host_ifconf
, buf_temp
, sizeof(*host_ifconf
));
4937 host_ifc_buf
= (char *)host_ifconf
+ sizeof(*host_ifconf
);
4939 host_ifconf
->ifc_len
= host_ifc_len
;
4941 host_ifc_buf
= NULL
;
4943 host_ifconf
->ifc_buf
= host_ifc_buf
;
4945 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, host_ifconf
));
4946 if (!is_error(ret
)) {
4947 /* convert host ifc_len to target ifc_len */
4949 nb_ifreq
= host_ifconf
->ifc_len
/ sizeof(struct ifreq
);
4950 target_ifc_len
= nb_ifreq
* target_ifreq_size
;
4951 host_ifconf
->ifc_len
= target_ifc_len
;
4953 /* restore target ifc_buf */
4955 host_ifconf
->ifc_buf
= (char *)(unsigned long)target_ifc_buf
;
4957 /* copy struct ifconf to target user */
4959 argptr
= lock_user(VERIFY_WRITE
, arg
, target_size
, 0);
4961 return -TARGET_EFAULT
;
4962 thunk_convert(argptr
, host_ifconf
, arg_type
, THUNK_TARGET
);
4963 unlock_user(argptr
, arg
, target_size
);
4965 if (target_ifc_buf
!= 0) {
4966 /* copy ifreq[] to target user */
4967 argptr
= lock_user(VERIFY_WRITE
, target_ifc_buf
, target_ifc_len
, 0);
4968 for (i
= 0; i
< nb_ifreq
; i
++) {
4969 thunk_convert(argptr
+ i
* target_ifreq_size
,
4970 host_ifc_buf
+ i
* sizeof(struct ifreq
),
4971 ifreq_arg_type
, THUNK_TARGET
);
4973 unlock_user(argptr
, target_ifc_buf
, target_ifc_len
);
4978 g_free(host_ifconf
);
4984 #if defined(CONFIG_USBFS)
4985 #if HOST_LONG_BITS > 64
4986 #error USBDEVFS thunks do not support >64 bit hosts yet.
4989 uint64_t target_urb_adr
;
4990 uint64_t target_buf_adr
;
4991 char *target_buf_ptr
;
4992 struct usbdevfs_urb host_urb
;
4995 static GHashTable
*usbdevfs_urb_hashtable(void)
4997 static GHashTable
*urb_hashtable
;
4999 if (!urb_hashtable
) {
5000 urb_hashtable
= g_hash_table_new(g_int64_hash
, g_int64_equal
);
5002 return urb_hashtable
;
5005 static void urb_hashtable_insert(struct live_urb
*urb
)
5007 GHashTable
*urb_hashtable
= usbdevfs_urb_hashtable();
5008 g_hash_table_insert(urb_hashtable
, urb
, urb
);
5011 static struct live_urb
*urb_hashtable_lookup(uint64_t target_urb_adr
)
5013 GHashTable
*urb_hashtable
= usbdevfs_urb_hashtable();
5014 return g_hash_table_lookup(urb_hashtable
, &target_urb_adr
);
5017 static void urb_hashtable_remove(struct live_urb
*urb
)
5019 GHashTable
*urb_hashtable
= usbdevfs_urb_hashtable();
5020 g_hash_table_remove(urb_hashtable
, urb
);
5024 do_ioctl_usbdevfs_reapurb(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5025 int fd
, int cmd
, abi_long arg
)
5027 const argtype usbfsurb_arg_type
[] = { MK_STRUCT(STRUCT_usbdevfs_urb
) };
5028 const argtype ptrvoid_arg_type
[] = { TYPE_PTRVOID
, 0, 0 };
5029 struct live_urb
*lurb
;
5033 uintptr_t target_urb_adr
;
5036 target_size
= thunk_type_size(usbfsurb_arg_type
, THUNK_TARGET
);
5038 memset(buf_temp
, 0, sizeof(uint64_t));
5039 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, buf_temp
));
5040 if (is_error(ret
)) {
5044 memcpy(&hurb
, buf_temp
, sizeof(uint64_t));
5045 lurb
= (void *)((uintptr_t)hurb
- offsetof(struct live_urb
, host_urb
));
5046 if (!lurb
->target_urb_adr
) {
5047 return -TARGET_EFAULT
;
5049 urb_hashtable_remove(lurb
);
5050 unlock_user(lurb
->target_buf_ptr
, lurb
->target_buf_adr
,
5051 lurb
->host_urb
.buffer_length
);
5052 lurb
->target_buf_ptr
= NULL
;
5054 /* restore the guest buffer pointer */
5055 lurb
->host_urb
.buffer
= (void *)(uintptr_t)lurb
->target_buf_adr
;
5057 /* update the guest urb struct */
5058 argptr
= lock_user(VERIFY_WRITE
, lurb
->target_urb_adr
, target_size
, 0);
5061 return -TARGET_EFAULT
;
5063 thunk_convert(argptr
, &lurb
->host_urb
, usbfsurb_arg_type
, THUNK_TARGET
);
5064 unlock_user(argptr
, lurb
->target_urb_adr
, target_size
);
5066 target_size
= thunk_type_size(ptrvoid_arg_type
, THUNK_TARGET
);
5067 /* write back the urb handle */
5068 argptr
= lock_user(VERIFY_WRITE
, arg
, target_size
, 0);
5071 return -TARGET_EFAULT
;
5074 /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
5075 target_urb_adr
= lurb
->target_urb_adr
;
5076 thunk_convert(argptr
, &target_urb_adr
, ptrvoid_arg_type
, THUNK_TARGET
);
5077 unlock_user(argptr
, arg
, target_size
);
5084 do_ioctl_usbdevfs_discardurb(const IOCTLEntry
*ie
,
5085 uint8_t *buf_temp
__attribute__((unused
)),
5086 int fd
, int cmd
, abi_long arg
)
5088 struct live_urb
*lurb
;
5090 /* map target address back to host URB with metadata. */
5091 lurb
= urb_hashtable_lookup(arg
);
5093 return -TARGET_EFAULT
;
5095 return get_errno(safe_ioctl(fd
, ie
->host_cmd
, &lurb
->host_urb
));
5099 do_ioctl_usbdevfs_submiturb(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5100 int fd
, int cmd
, abi_long arg
)
5102 const argtype
*arg_type
= ie
->arg_type
;
5107 struct live_urb
*lurb
;
5110 * each submitted URB needs to map to a unique ID for the
5111 * kernel, and that unique ID needs to be a pointer to
5112 * host memory. hence, we need to malloc for each URB.
5113 * isochronous transfers have a variable length struct.
5116 target_size
= thunk_type_size(arg_type
, THUNK_TARGET
);
5118 /* construct host copy of urb and metadata */
5119 lurb
= g_try_new0(struct live_urb
, 1);
5121 return -TARGET_ENOMEM
;
5124 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5127 return -TARGET_EFAULT
;
5129 thunk_convert(&lurb
->host_urb
, argptr
, arg_type
, THUNK_HOST
);
5130 unlock_user(argptr
, arg
, 0);
5132 lurb
->target_urb_adr
= arg
;
5133 lurb
->target_buf_adr
= (uintptr_t)lurb
->host_urb
.buffer
;
5135 /* buffer space used depends on endpoint type so lock the entire buffer */
5136 /* control type urbs should check the buffer contents for true direction */
5137 rw_dir
= lurb
->host_urb
.endpoint
& USB_DIR_IN
? VERIFY_WRITE
: VERIFY_READ
;
5138 lurb
->target_buf_ptr
= lock_user(rw_dir
, lurb
->target_buf_adr
,
5139 lurb
->host_urb
.buffer_length
, 1);
5140 if (lurb
->target_buf_ptr
== NULL
) {
5142 return -TARGET_EFAULT
;
5145 /* update buffer pointer in host copy */
5146 lurb
->host_urb
.buffer
= lurb
->target_buf_ptr
;
5148 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, &lurb
->host_urb
));
5149 if (is_error(ret
)) {
5150 unlock_user(lurb
->target_buf_ptr
, lurb
->target_buf_adr
, 0);
5153 urb_hashtable_insert(lurb
);
5158 #endif /* CONFIG_USBFS */
5160 static abi_long
do_ioctl_dm(const IOCTLEntry
*ie
, uint8_t *buf_temp
, int fd
,
5161 int cmd
, abi_long arg
)
5164 struct dm_ioctl
*host_dm
;
5165 abi_long guest_data
;
5166 uint32_t guest_data_size
;
5168 const argtype
*arg_type
= ie
->arg_type
;
5170 void *big_buf
= NULL
;
5174 target_size
= thunk_type_size(arg_type
, 0);
5175 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5177 ret
= -TARGET_EFAULT
;
5180 thunk_convert(buf_temp
, argptr
, arg_type
, THUNK_HOST
);
5181 unlock_user(argptr
, arg
, 0);
5183 /* buf_temp is too small, so fetch things into a bigger buffer */
5184 big_buf
= g_malloc0(((struct dm_ioctl
*)buf_temp
)->data_size
* 2);
5185 memcpy(big_buf
, buf_temp
, target_size
);
5189 guest_data
= arg
+ host_dm
->data_start
;
5190 if ((guest_data
- arg
) < 0) {
5191 ret
= -TARGET_EINVAL
;
5194 guest_data_size
= host_dm
->data_size
- host_dm
->data_start
;
5195 host_data
= (char*)host_dm
+ host_dm
->data_start
;
5197 argptr
= lock_user(VERIFY_READ
, guest_data
, guest_data_size
, 1);
5199 ret
= -TARGET_EFAULT
;
5203 switch (ie
->host_cmd
) {
5205 case DM_LIST_DEVICES
:
5208 case DM_DEV_SUSPEND
:
5211 case DM_TABLE_STATUS
:
5212 case DM_TABLE_CLEAR
:
5214 case DM_LIST_VERSIONS
:
5218 case DM_DEV_SET_GEOMETRY
:
5219 /* data contains only strings */
5220 memcpy(host_data
, argptr
, guest_data_size
);
5223 memcpy(host_data
, argptr
, guest_data_size
);
5224 *(uint64_t*)host_data
= tswap64(*(uint64_t*)argptr
);
5228 void *gspec
= argptr
;
5229 void *cur_data
= host_data
;
5230 const argtype arg_type
[] = { MK_STRUCT(STRUCT_dm_target_spec
) };
5231 int spec_size
= thunk_type_size(arg_type
, 0);
5234 for (i
= 0; i
< host_dm
->target_count
; i
++) {
5235 struct dm_target_spec
*spec
= cur_data
;
5239 thunk_convert(spec
, gspec
, arg_type
, THUNK_HOST
);
5240 slen
= strlen((char*)gspec
+ spec_size
) + 1;
5242 spec
->next
= sizeof(*spec
) + slen
;
5243 strcpy((char*)&spec
[1], gspec
+ spec_size
);
5245 cur_data
+= spec
->next
;
5250 ret
= -TARGET_EINVAL
;
5251 unlock_user(argptr
, guest_data
, 0);
5254 unlock_user(argptr
, guest_data
, 0);
5256 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, buf_temp
));
5257 if (!is_error(ret
)) {
5258 guest_data
= arg
+ host_dm
->data_start
;
5259 guest_data_size
= host_dm
->data_size
- host_dm
->data_start
;
5260 argptr
= lock_user(VERIFY_WRITE
, guest_data
, guest_data_size
, 0);
5261 switch (ie
->host_cmd
) {
5266 case DM_DEV_SUSPEND
:
5269 case DM_TABLE_CLEAR
:
5271 case DM_DEV_SET_GEOMETRY
:
5272 /* no return data */
5274 case DM_LIST_DEVICES
:
5276 struct dm_name_list
*nl
= (void*)host_dm
+ host_dm
->data_start
;
5277 uint32_t remaining_data
= guest_data_size
;
5278 void *cur_data
= argptr
;
5279 const argtype arg_type
[] = { MK_STRUCT(STRUCT_dm_name_list
) };
5280 int nl_size
= 12; /* can't use thunk_size due to alignment */
5283 uint32_t next
= nl
->next
;
5285 nl
->next
= nl_size
+ (strlen(nl
->name
) + 1);
5287 if (remaining_data
< nl
->next
) {
5288 host_dm
->flags
|= DM_BUFFER_FULL_FLAG
;
5291 thunk_convert(cur_data
, nl
, arg_type
, THUNK_TARGET
);
5292 strcpy(cur_data
+ nl_size
, nl
->name
);
5293 cur_data
+= nl
->next
;
5294 remaining_data
-= nl
->next
;
5298 nl
= (void*)nl
+ next
;
5303 case DM_TABLE_STATUS
:
5305 struct dm_target_spec
*spec
= (void*)host_dm
+ host_dm
->data_start
;
5306 void *cur_data
= argptr
;
5307 const argtype arg_type
[] = { MK_STRUCT(STRUCT_dm_target_spec
) };
5308 int spec_size
= thunk_type_size(arg_type
, 0);
5311 for (i
= 0; i
< host_dm
->target_count
; i
++) {
5312 uint32_t next
= spec
->next
;
5313 int slen
= strlen((char*)&spec
[1]) + 1;
5314 spec
->next
= (cur_data
- argptr
) + spec_size
+ slen
;
5315 if (guest_data_size
< spec
->next
) {
5316 host_dm
->flags
|= DM_BUFFER_FULL_FLAG
;
5319 thunk_convert(cur_data
, spec
, arg_type
, THUNK_TARGET
);
5320 strcpy(cur_data
+ spec_size
, (char*)&spec
[1]);
5321 cur_data
= argptr
+ spec
->next
;
5322 spec
= (void*)host_dm
+ host_dm
->data_start
+ next
;
5328 void *hdata
= (void*)host_dm
+ host_dm
->data_start
;
5329 int count
= *(uint32_t*)hdata
;
5330 uint64_t *hdev
= hdata
+ 8;
5331 uint64_t *gdev
= argptr
+ 8;
5334 *(uint32_t*)argptr
= tswap32(count
);
5335 for (i
= 0; i
< count
; i
++) {
5336 *gdev
= tswap64(*hdev
);
5342 case DM_LIST_VERSIONS
:
5344 struct dm_target_versions
*vers
= (void*)host_dm
+ host_dm
->data_start
;
5345 uint32_t remaining_data
= guest_data_size
;
5346 void *cur_data
= argptr
;
5347 const argtype arg_type
[] = { MK_STRUCT(STRUCT_dm_target_versions
) };
5348 int vers_size
= thunk_type_size(arg_type
, 0);
5351 uint32_t next
= vers
->next
;
5353 vers
->next
= vers_size
+ (strlen(vers
->name
) + 1);
5355 if (remaining_data
< vers
->next
) {
5356 host_dm
->flags
|= DM_BUFFER_FULL_FLAG
;
5359 thunk_convert(cur_data
, vers
, arg_type
, THUNK_TARGET
);
5360 strcpy(cur_data
+ vers_size
, vers
->name
);
5361 cur_data
+= vers
->next
;
5362 remaining_data
-= vers
->next
;
5366 vers
= (void*)vers
+ next
;
5371 unlock_user(argptr
, guest_data
, 0);
5372 ret
= -TARGET_EINVAL
;
5375 unlock_user(argptr
, guest_data
, guest_data_size
);
5377 argptr
= lock_user(VERIFY_WRITE
, arg
, target_size
, 0);
5379 ret
= -TARGET_EFAULT
;
5382 thunk_convert(argptr
, buf_temp
, arg_type
, THUNK_TARGET
);
5383 unlock_user(argptr
, arg
, target_size
);
5390 static abi_long
do_ioctl_blkpg(const IOCTLEntry
*ie
, uint8_t *buf_temp
, int fd
,
5391 int cmd
, abi_long arg
)
5395 const argtype
*arg_type
= ie
->arg_type
;
5396 const argtype part_arg_type
[] = { MK_STRUCT(STRUCT_blkpg_partition
) };
5399 struct blkpg_ioctl_arg
*host_blkpg
= (void*)buf_temp
;
5400 struct blkpg_partition host_part
;
5402 /* Read and convert blkpg */
5404 target_size
= thunk_type_size(arg_type
, 0);
5405 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5407 ret
= -TARGET_EFAULT
;
5410 thunk_convert(buf_temp
, argptr
, arg_type
, THUNK_HOST
);
5411 unlock_user(argptr
, arg
, 0);
5413 switch (host_blkpg
->op
) {
5414 case BLKPG_ADD_PARTITION
:
5415 case BLKPG_DEL_PARTITION
:
5416 /* payload is struct blkpg_partition */
5419 /* Unknown opcode */
5420 ret
= -TARGET_EINVAL
;
5424 /* Read and convert blkpg->data */
5425 arg
= (abi_long
)(uintptr_t)host_blkpg
->data
;
5426 target_size
= thunk_type_size(part_arg_type
, 0);
5427 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5429 ret
= -TARGET_EFAULT
;
5432 thunk_convert(&host_part
, argptr
, part_arg_type
, THUNK_HOST
);
5433 unlock_user(argptr
, arg
, 0);
5435 /* Swizzle the data pointer to our local copy and call! */
5436 host_blkpg
->data
= &host_part
;
5437 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, host_blkpg
));
5443 static abi_long
do_ioctl_rt(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5444 int fd
, int cmd
, abi_long arg
)
5446 const argtype
*arg_type
= ie
->arg_type
;
5447 const StructEntry
*se
;
5448 const argtype
*field_types
;
5449 const int *dst_offsets
, *src_offsets
;
5452 abi_ulong
*target_rt_dev_ptr
= NULL
;
5453 unsigned long *host_rt_dev_ptr
= NULL
;
5457 assert(ie
->access
== IOC_W
);
5458 assert(*arg_type
== TYPE_PTR
);
5460 assert(*arg_type
== TYPE_STRUCT
);
5461 target_size
= thunk_type_size(arg_type
, 0);
5462 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5464 return -TARGET_EFAULT
;
5467 assert(*arg_type
== (int)STRUCT_rtentry
);
5468 se
= struct_entries
+ *arg_type
++;
5469 assert(se
->convert
[0] == NULL
);
5470 /* convert struct here to be able to catch rt_dev string */
5471 field_types
= se
->field_types
;
5472 dst_offsets
= se
->field_offsets
[THUNK_HOST
];
5473 src_offsets
= se
->field_offsets
[THUNK_TARGET
];
5474 for (i
= 0; i
< se
->nb_fields
; i
++) {
5475 if (dst_offsets
[i
] == offsetof(struct rtentry
, rt_dev
)) {
5476 assert(*field_types
== TYPE_PTRVOID
);
5477 target_rt_dev_ptr
= argptr
+ src_offsets
[i
];
5478 host_rt_dev_ptr
= (unsigned long *)(buf_temp
+ dst_offsets
[i
]);
5479 if (*target_rt_dev_ptr
!= 0) {
5480 *host_rt_dev_ptr
= (unsigned long)lock_user_string(
5481 tswapal(*target_rt_dev_ptr
));
5482 if (!*host_rt_dev_ptr
) {
5483 unlock_user(argptr
, arg
, 0);
5484 return -TARGET_EFAULT
;
5487 *host_rt_dev_ptr
= 0;
5492 field_types
= thunk_convert(buf_temp
+ dst_offsets
[i
],
5493 argptr
+ src_offsets
[i
],
5494 field_types
, THUNK_HOST
);
5496 unlock_user(argptr
, arg
, 0);
5498 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, buf_temp
));
5500 assert(host_rt_dev_ptr
!= NULL
);
5501 assert(target_rt_dev_ptr
!= NULL
);
5502 if (*host_rt_dev_ptr
!= 0) {
5503 unlock_user((void *)*host_rt_dev_ptr
,
5504 *target_rt_dev_ptr
, 0);
5509 static abi_long
do_ioctl_kdsigaccept(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5510 int fd
, int cmd
, abi_long arg
)
5512 int sig
= target_to_host_signal(arg
);
5513 return get_errno(safe_ioctl(fd
, ie
->host_cmd
, sig
));
5516 static abi_long
do_ioctl_SIOCGSTAMP(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5517 int fd
, int cmd
, abi_long arg
)
5522 ret
= get_errno(safe_ioctl(fd
, SIOCGSTAMP
, &tv
));
5523 if (is_error(ret
)) {
5527 if (cmd
== (int)TARGET_SIOCGSTAMP_OLD
) {
5528 if (copy_to_user_timeval(arg
, &tv
)) {
5529 return -TARGET_EFAULT
;
5532 if (copy_to_user_timeval64(arg
, &tv
)) {
5533 return -TARGET_EFAULT
;
5540 static abi_long
do_ioctl_SIOCGSTAMPNS(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5541 int fd
, int cmd
, abi_long arg
)
5546 ret
= get_errno(safe_ioctl(fd
, SIOCGSTAMPNS
, &ts
));
5547 if (is_error(ret
)) {
5551 if (cmd
== (int)TARGET_SIOCGSTAMPNS_OLD
) {
5552 if (host_to_target_timespec(arg
, &ts
)) {
5553 return -TARGET_EFAULT
;
5556 if (host_to_target_timespec64(arg
, &ts
)) {
5557 return -TARGET_EFAULT
;
5565 static abi_long
do_ioctl_tiocgptpeer(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5566 int fd
, int cmd
, abi_long arg
)
5568 int flags
= target_to_host_bitmask(arg
, fcntl_flags_tbl
);
5569 return get_errno(safe_ioctl(fd
, ie
->host_cmd
, flags
));
5575 static void unlock_drm_version(struct drm_version
*host_ver
,
5576 struct target_drm_version
*target_ver
,
5579 unlock_user(host_ver
->name
, target_ver
->name
,
5580 copy
? host_ver
->name_len
: 0);
5581 unlock_user(host_ver
->date
, target_ver
->date
,
5582 copy
? host_ver
->date_len
: 0);
5583 unlock_user(host_ver
->desc
, target_ver
->desc
,
5584 copy
? host_ver
->desc_len
: 0);
5587 static inline abi_long
target_to_host_drmversion(struct drm_version
*host_ver
,
5588 struct target_drm_version
*target_ver
)
5590 memset(host_ver
, 0, sizeof(*host_ver
));
5592 __get_user(host_ver
->name_len
, &target_ver
->name_len
);
5593 if (host_ver
->name_len
) {
5594 host_ver
->name
= lock_user(VERIFY_WRITE
, target_ver
->name
,
5595 target_ver
->name_len
, 0);
5596 if (!host_ver
->name
) {
5601 __get_user(host_ver
->date_len
, &target_ver
->date_len
);
5602 if (host_ver
->date_len
) {
5603 host_ver
->date
= lock_user(VERIFY_WRITE
, target_ver
->date
,
5604 target_ver
->date_len
, 0);
5605 if (!host_ver
->date
) {
5610 __get_user(host_ver
->desc_len
, &target_ver
->desc_len
);
5611 if (host_ver
->desc_len
) {
5612 host_ver
->desc
= lock_user(VERIFY_WRITE
, target_ver
->desc
,
5613 target_ver
->desc_len
, 0);
5614 if (!host_ver
->desc
) {
5621 unlock_drm_version(host_ver
, target_ver
, false);
5625 static inline void host_to_target_drmversion(
5626 struct target_drm_version
*target_ver
,
5627 struct drm_version
*host_ver
)
5629 __put_user(host_ver
->version_major
, &target_ver
->version_major
);
5630 __put_user(host_ver
->version_minor
, &target_ver
->version_minor
);
5631 __put_user(host_ver
->version_patchlevel
, &target_ver
->version_patchlevel
);
5632 __put_user(host_ver
->name_len
, &target_ver
->name_len
);
5633 __put_user(host_ver
->date_len
, &target_ver
->date_len
);
5634 __put_user(host_ver
->desc_len
, &target_ver
->desc_len
);
5635 unlock_drm_version(host_ver
, target_ver
, true);
5638 static abi_long
do_ioctl_drm(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5639 int fd
, int cmd
, abi_long arg
)
5641 struct drm_version
*ver
;
5642 struct target_drm_version
*target_ver
;
5645 switch (ie
->host_cmd
) {
5646 case DRM_IOCTL_VERSION
:
5647 if (!lock_user_struct(VERIFY_WRITE
, target_ver
, arg
, 0)) {
5648 return -TARGET_EFAULT
;
5650 ver
= (struct drm_version
*)buf_temp
;
5651 ret
= target_to_host_drmversion(ver
, target_ver
);
5652 if (!is_error(ret
)) {
5653 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, ver
));
5654 if (is_error(ret
)) {
5655 unlock_drm_version(ver
, target_ver
, false);
5657 host_to_target_drmversion(target_ver
, ver
);
5660 unlock_user_struct(target_ver
, arg
, 0);
5663 return -TARGET_ENOSYS
;
5666 static abi_long
do_ioctl_drm_i915_getparam(const IOCTLEntry
*ie
,
5667 struct drm_i915_getparam
*gparam
,
5668 int fd
, abi_long arg
)
5672 struct target_drm_i915_getparam
*target_gparam
;
5674 if (!lock_user_struct(VERIFY_READ
, target_gparam
, arg
, 0)) {
5675 return -TARGET_EFAULT
;
5678 __get_user(gparam
->param
, &target_gparam
->param
);
5679 gparam
->value
= &value
;
5680 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, gparam
));
5681 put_user_s32(value
, target_gparam
->value
);
5683 unlock_user_struct(target_gparam
, arg
, 0);
5687 static abi_long
do_ioctl_drm_i915(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5688 int fd
, int cmd
, abi_long arg
)
5690 switch (ie
->host_cmd
) {
5691 case DRM_IOCTL_I915_GETPARAM
:
5692 return do_ioctl_drm_i915_getparam(ie
,
5693 (struct drm_i915_getparam
*)buf_temp
,
5696 return -TARGET_ENOSYS
;
5702 static abi_long
do_ioctl_TUNSETTXFILTER(const IOCTLEntry
*ie
, uint8_t *buf_temp
,
5703 int fd
, int cmd
, abi_long arg
)
5705 struct tun_filter
*filter
= (struct tun_filter
*)buf_temp
;
5706 struct tun_filter
*target_filter
;
5709 assert(ie
->access
== IOC_W
);
5711 target_filter
= lock_user(VERIFY_READ
, arg
, sizeof(*target_filter
), 1);
5712 if (!target_filter
) {
5713 return -TARGET_EFAULT
;
5715 filter
->flags
= tswap16(target_filter
->flags
);
5716 filter
->count
= tswap16(target_filter
->count
);
5717 unlock_user(target_filter
, arg
, 0);
5719 if (filter
->count
) {
5720 if (offsetof(struct tun_filter
, addr
) + filter
->count
* ETH_ALEN
>
5722 return -TARGET_EFAULT
;
5725 target_addr
= lock_user(VERIFY_READ
,
5726 arg
+ offsetof(struct tun_filter
, addr
),
5727 filter
->count
* ETH_ALEN
, 1);
5729 return -TARGET_EFAULT
;
5731 memcpy(filter
->addr
, target_addr
, filter
->count
* ETH_ALEN
);
5732 unlock_user(target_addr
, arg
+ offsetof(struct tun_filter
, addr
), 0);
5735 return get_errno(safe_ioctl(fd
, ie
->host_cmd
, filter
));
5738 IOCTLEntry ioctl_entries
[] = {
5739 #define IOCTL(cmd, access, ...) \
5740 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
5741 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
5742 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
5743 #define IOCTL_IGNORE(cmd) \
5744 { TARGET_ ## cmd, 0, #cmd },
5749 /* ??? Implement proper locking for ioctls. */
5750 /* do_ioctl() Must return target values and target errnos. */
5751 static abi_long
do_ioctl(int fd
, int cmd
, abi_long arg
)
5753 const IOCTLEntry
*ie
;
5754 const argtype
*arg_type
;
5756 uint8_t buf_temp
[MAX_STRUCT_SIZE
];
5762 if (ie
->target_cmd
== 0) {
5764 LOG_UNIMP
, "Unsupported ioctl: cmd=0x%04lx\n", (long)cmd
);
5765 return -TARGET_ENOTTY
;
5767 if (ie
->target_cmd
== cmd
)
5771 arg_type
= ie
->arg_type
;
5773 return ie
->do_ioctl(ie
, buf_temp
, fd
, cmd
, arg
);
5774 } else if (!ie
->host_cmd
) {
5775 /* Some architectures define BSD ioctls in their headers
5776 that are not implemented in Linux. */
5777 return -TARGET_ENOTTY
;
5780 switch(arg_type
[0]) {
5783 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
));
5789 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, arg
));
5793 target_size
= thunk_type_size(arg_type
, 0);
5794 switch(ie
->access
) {
5796 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, buf_temp
));
5797 if (!is_error(ret
)) {
5798 argptr
= lock_user(VERIFY_WRITE
, arg
, target_size
, 0);
5800 return -TARGET_EFAULT
;
5801 thunk_convert(argptr
, buf_temp
, arg_type
, THUNK_TARGET
);
5802 unlock_user(argptr
, arg
, target_size
);
5806 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5808 return -TARGET_EFAULT
;
5809 thunk_convert(buf_temp
, argptr
, arg_type
, THUNK_HOST
);
5810 unlock_user(argptr
, arg
, 0);
5811 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, buf_temp
));
5815 argptr
= lock_user(VERIFY_READ
, arg
, target_size
, 1);
5817 return -TARGET_EFAULT
;
5818 thunk_convert(buf_temp
, argptr
, arg_type
, THUNK_HOST
);
5819 unlock_user(argptr
, arg
, 0);
5820 ret
= get_errno(safe_ioctl(fd
, ie
->host_cmd
, buf_temp
));
5821 if (!is_error(ret
)) {
5822 argptr
= lock_user(VERIFY_WRITE
, arg
, target_size
, 0);
5824 return -TARGET_EFAULT
;
5825 thunk_convert(argptr
, buf_temp
, arg_type
, THUNK_TARGET
);
5826 unlock_user(argptr
, arg
, target_size
);
5832 qemu_log_mask(LOG_UNIMP
,
5833 "Unsupported ioctl type: cmd=0x%04lx type=%d\n",
5834 (long)cmd
, arg_type
[0]);
5835 ret
= -TARGET_ENOTTY
;
5841 static const bitmask_transtbl iflag_tbl
[] = {
5842 { TARGET_IGNBRK
, TARGET_IGNBRK
, IGNBRK
, IGNBRK
},
5843 { TARGET_BRKINT
, TARGET_BRKINT
, BRKINT
, BRKINT
},
5844 { TARGET_IGNPAR
, TARGET_IGNPAR
, IGNPAR
, IGNPAR
},
5845 { TARGET_PARMRK
, TARGET_PARMRK
, PARMRK
, PARMRK
},
5846 { TARGET_INPCK
, TARGET_INPCK
, INPCK
, INPCK
},
5847 { TARGET_ISTRIP
, TARGET_ISTRIP
, ISTRIP
, ISTRIP
},
5848 { TARGET_INLCR
, TARGET_INLCR
, INLCR
, INLCR
},
5849 { TARGET_IGNCR
, TARGET_IGNCR
, IGNCR
, IGNCR
},
5850 { TARGET_ICRNL
, TARGET_ICRNL
, ICRNL
, ICRNL
},
5851 { TARGET_IUCLC
, TARGET_IUCLC
, IUCLC
, IUCLC
},
5852 { TARGET_IXON
, TARGET_IXON
, IXON
, IXON
},
5853 { TARGET_IXANY
, TARGET_IXANY
, IXANY
, IXANY
},
5854 { TARGET_IXOFF
, TARGET_IXOFF
, IXOFF
, IXOFF
},
5855 { TARGET_IMAXBEL
, TARGET_IMAXBEL
, IMAXBEL
, IMAXBEL
},
5856 { TARGET_IUTF8
, TARGET_IUTF8
, IUTF8
, IUTF8
},
5860 static const bitmask_transtbl oflag_tbl
[] = {
5861 { TARGET_OPOST
, TARGET_OPOST
, OPOST
, OPOST
},
5862 { TARGET_OLCUC
, TARGET_OLCUC
, OLCUC
, OLCUC
},
5863 { TARGET_ONLCR
, TARGET_ONLCR
, ONLCR
, ONLCR
},
5864 { TARGET_OCRNL
, TARGET_OCRNL
, OCRNL
, OCRNL
},
5865 { TARGET_ONOCR
, TARGET_ONOCR
, ONOCR
, ONOCR
},
5866 { TARGET_ONLRET
, TARGET_ONLRET
, ONLRET
, ONLRET
},
5867 { TARGET_OFILL
, TARGET_OFILL
, OFILL
, OFILL
},
5868 { TARGET_OFDEL
, TARGET_OFDEL
, OFDEL
, OFDEL
},
5869 { TARGET_NLDLY
, TARGET_NL0
, NLDLY
, NL0
},
5870 { TARGET_NLDLY
, TARGET_NL1
, NLDLY
, NL1
},
5871 { TARGET_CRDLY
, TARGET_CR0
, CRDLY
, CR0
},
5872 { TARGET_CRDLY
, TARGET_CR1
, CRDLY
, CR1
},
5873 { TARGET_CRDLY
, TARGET_CR2
, CRDLY
, CR2
},
5874 { TARGET_CRDLY
, TARGET_CR3
, CRDLY
, CR3
},
5875 { TARGET_TABDLY
, TARGET_TAB0
, TABDLY
, TAB0
},
5876 { TARGET_TABDLY
, TARGET_TAB1
, TABDLY
, TAB1
},
5877 { TARGET_TABDLY
, TARGET_TAB2
, TABDLY
, TAB2
},
5878 { TARGET_TABDLY
, TARGET_TAB3
, TABDLY
, TAB3
},
5879 { TARGET_BSDLY
, TARGET_BS0
, BSDLY
, BS0
},
5880 { TARGET_BSDLY
, TARGET_BS1
, BSDLY
, BS1
},
5881 { TARGET_VTDLY
, TARGET_VT0
, VTDLY
, VT0
},
5882 { TARGET_VTDLY
, TARGET_VT1
, VTDLY
, VT1
},
5883 { TARGET_FFDLY
, TARGET_FF0
, FFDLY
, FF0
},
5884 { TARGET_FFDLY
, TARGET_FF1
, FFDLY
, FF1
},
5888 static const bitmask_transtbl cflag_tbl
[] = {
5889 { TARGET_CBAUD
, TARGET_B0
, CBAUD
, B0
},
5890 { TARGET_CBAUD
, TARGET_B50
, CBAUD
, B50
},
5891 { TARGET_CBAUD
, TARGET_B75
, CBAUD
, B75
},
5892 { TARGET_CBAUD
, TARGET_B110
, CBAUD
, B110
},
5893 { TARGET_CBAUD
, TARGET_B134
, CBAUD
, B134
},
5894 { TARGET_CBAUD
, TARGET_B150
, CBAUD
, B150
},
5895 { TARGET_CBAUD
, TARGET_B200
, CBAUD
, B200
},
5896 { TARGET_CBAUD
, TARGET_B300
, CBAUD
, B300
},
5897 { TARGET_CBAUD
, TARGET_B600
, CBAUD
, B600
},
5898 { TARGET_CBAUD
, TARGET_B1200
, CBAUD
, B1200
},
5899 { TARGET_CBAUD
, TARGET_B1800
, CBAUD
, B1800
},
5900 { TARGET_CBAUD
, TARGET_B2400
, CBAUD
, B2400
},
5901 { TARGET_CBAUD
, TARGET_B4800
, CBAUD
, B4800
},
5902 { TARGET_CBAUD
, TARGET_B9600
, CBAUD
, B9600
},
5903 { TARGET_CBAUD
, TARGET_B19200
, CBAUD
, B19200
},
5904 { TARGET_CBAUD
, TARGET_B38400
, CBAUD
, B38400
},
5905 { TARGET_CBAUD
, TARGET_B57600
, CBAUD
, B57600
},
5906 { TARGET_CBAUD
, TARGET_B115200
, CBAUD
, B115200
},
5907 { TARGET_CBAUD
, TARGET_B230400
, CBAUD
, B230400
},
5908 { TARGET_CBAUD
, TARGET_B460800
, CBAUD
, B460800
},
5909 { TARGET_CSIZE
, TARGET_CS5
, CSIZE
, CS5
},
5910 { TARGET_CSIZE
, TARGET_CS6
, CSIZE
, CS6
},
5911 { TARGET_CSIZE
, TARGET_CS7
, CSIZE
, CS7
},
5912 { TARGET_CSIZE
, TARGET_CS8
, CSIZE
, CS8
},
5913 { TARGET_CSTOPB
, TARGET_CSTOPB
, CSTOPB
, CSTOPB
},
5914 { TARGET_CREAD
, TARGET_CREAD
, CREAD
, CREAD
},
5915 { TARGET_PARENB
, TARGET_PARENB
, PARENB
, PARENB
},
5916 { TARGET_PARODD
, TARGET_PARODD
, PARODD
, PARODD
},
5917 { TARGET_HUPCL
, TARGET_HUPCL
, HUPCL
, HUPCL
},
5918 { TARGET_CLOCAL
, TARGET_CLOCAL
, CLOCAL
, CLOCAL
},
5919 { TARGET_CRTSCTS
, TARGET_CRTSCTS
, CRTSCTS
, CRTSCTS
},
5923 static const bitmask_transtbl lflag_tbl
[] = {
5924 { TARGET_ISIG
, TARGET_ISIG
, ISIG
, ISIG
},
5925 { TARGET_ICANON
, TARGET_ICANON
, ICANON
, ICANON
},
5926 { TARGET_XCASE
, TARGET_XCASE
, XCASE
, XCASE
},
5927 { TARGET_ECHO
, TARGET_ECHO
, ECHO
, ECHO
},
5928 { TARGET_ECHOE
, TARGET_ECHOE
, ECHOE
, ECHOE
},
5929 { TARGET_ECHOK
, TARGET_ECHOK
, ECHOK
, ECHOK
},
5930 { TARGET_ECHONL
, TARGET_ECHONL
, ECHONL
, ECHONL
},
5931 { TARGET_NOFLSH
, TARGET_NOFLSH
, NOFLSH
, NOFLSH
},
5932 { TARGET_TOSTOP
, TARGET_TOSTOP
, TOSTOP
, TOSTOP
},
5933 { TARGET_ECHOCTL
, TARGET_ECHOCTL
, ECHOCTL
, ECHOCTL
},
5934 { TARGET_ECHOPRT
, TARGET_ECHOPRT
, ECHOPRT
, ECHOPRT
},
5935 { TARGET_ECHOKE
, TARGET_ECHOKE
, ECHOKE
, ECHOKE
},
5936 { TARGET_FLUSHO
, TARGET_FLUSHO
, FLUSHO
, FLUSHO
},
5937 { TARGET_PENDIN
, TARGET_PENDIN
, PENDIN
, PENDIN
},
5938 { TARGET_IEXTEN
, TARGET_IEXTEN
, IEXTEN
, IEXTEN
},
5939 { TARGET_EXTPROC
, TARGET_EXTPROC
, EXTPROC
, EXTPROC
},
5943 static void target_to_host_termios (void *dst
, const void *src
)
5945 struct host_termios
*host
= dst
;
5946 const struct target_termios
*target
= src
;
5949 target_to_host_bitmask(tswap32(target
->c_iflag
), iflag_tbl
);
5951 target_to_host_bitmask(tswap32(target
->c_oflag
), oflag_tbl
);
5953 target_to_host_bitmask(tswap32(target
->c_cflag
), cflag_tbl
);
5955 target_to_host_bitmask(tswap32(target
->c_lflag
), lflag_tbl
);
5956 host
->c_line
= target
->c_line
;
5958 memset(host
->c_cc
, 0, sizeof(host
->c_cc
));
5959 host
->c_cc
[VINTR
] = target
->c_cc
[TARGET_VINTR
];
5960 host
->c_cc
[VQUIT
] = target
->c_cc
[TARGET_VQUIT
];
5961 host
->c_cc
[VERASE
] = target
->c_cc
[TARGET_VERASE
];
5962 host
->c_cc
[VKILL
] = target
->c_cc
[TARGET_VKILL
];
5963 host
->c_cc
[VEOF
] = target
->c_cc
[TARGET_VEOF
];
5964 host
->c_cc
[VTIME
] = target
->c_cc
[TARGET_VTIME
];
5965 host
->c_cc
[VMIN
] = target
->c_cc
[TARGET_VMIN
];
5966 host
->c_cc
[VSWTC
] = target
->c_cc
[TARGET_VSWTC
];
5967 host
->c_cc
[VSTART
] = target
->c_cc
[TARGET_VSTART
];
5968 host
->c_cc
[VSTOP
] = target
->c_cc
[TARGET_VSTOP
];
5969 host
->c_cc
[VSUSP
] = target
->c_cc
[TARGET_VSUSP
];
5970 host
->c_cc
[VEOL
] = target
->c_cc
[TARGET_VEOL
];
5971 host
->c_cc
[VREPRINT
] = target
->c_cc
[TARGET_VREPRINT
];
5972 host
->c_cc
[VDISCARD
] = target
->c_cc
[TARGET_VDISCARD
];
5973 host
->c_cc
[VWERASE
] = target
->c_cc
[TARGET_VWERASE
];
5974 host
->c_cc
[VLNEXT
] = target
->c_cc
[TARGET_VLNEXT
];
5975 host
->c_cc
[VEOL2
] = target
->c_cc
[TARGET_VEOL2
];
5978 static void host_to_target_termios (void *dst
, const void *src
)
5980 struct target_termios
*target
= dst
;
5981 const struct host_termios
*host
= src
;
5984 tswap32(host_to_target_bitmask(host
->c_iflag
, iflag_tbl
));
5986 tswap32(host_to_target_bitmask(host
->c_oflag
, oflag_tbl
));
5988 tswap32(host_to_target_bitmask(host
->c_cflag
, cflag_tbl
));
5990 tswap32(host_to_target_bitmask(host
->c_lflag
, lflag_tbl
));
5991 target
->c_line
= host
->c_line
;
5993 memset(target
->c_cc
, 0, sizeof(target
->c_cc
));
5994 target
->c_cc
[TARGET_VINTR
] = host
->c_cc
[VINTR
];
5995 target
->c_cc
[TARGET_VQUIT
] = host
->c_cc
[VQUIT
];
5996 target
->c_cc
[TARGET_VERASE
] = host
->c_cc
[VERASE
];
5997 target
->c_cc
[TARGET_VKILL
] = host
->c_cc
[VKILL
];
5998 target
->c_cc
[TARGET_VEOF
] = host
->c_cc
[VEOF
];
5999 target
->c_cc
[TARGET_VTIME
] = host
->c_cc
[VTIME
];
6000 target
->c_cc
[TARGET_VMIN
] = host
->c_cc
[VMIN
];
6001 target
->c_cc
[TARGET_VSWTC
] = host
->c_cc
[VSWTC
];
6002 target
->c_cc
[TARGET_VSTART
] = host
->c_cc
[VSTART
];
6003 target
->c_cc
[TARGET_VSTOP
] = host
->c_cc
[VSTOP
];
6004 target
->c_cc
[TARGET_VSUSP
] = host
->c_cc
[VSUSP
];
6005 target
->c_cc
[TARGET_VEOL
] = host
->c_cc
[VEOL
];
6006 target
->c_cc
[TARGET_VREPRINT
] = host
->c_cc
[VREPRINT
];
6007 target
->c_cc
[TARGET_VDISCARD
] = host
->c_cc
[VDISCARD
];
6008 target
->c_cc
[TARGET_VWERASE
] = host
->c_cc
[VWERASE
];
6009 target
->c_cc
[TARGET_VLNEXT
] = host
->c_cc
[VLNEXT
];
6010 target
->c_cc
[TARGET_VEOL2
] = host
->c_cc
[VEOL2
];
6013 static const StructEntry struct_termios_def
= {
6014 .convert
= { host_to_target_termios
, target_to_host_termios
},
6015 .size
= { sizeof(struct target_termios
), sizeof(struct host_termios
) },
6016 .align
= { __alignof__(struct target_termios
), __alignof__(struct host_termios
) },
6017 .print
= print_termios
,
6020 /* If the host does not provide these bits, they may be safely discarded. */
6024 #ifndef MAP_UNINITIALIZED
6025 #define MAP_UNINITIALIZED 0
6028 static const bitmask_transtbl mmap_flags_tbl
[] = {
6029 { TARGET_MAP_TYPE
, TARGET_MAP_SHARED
, MAP_TYPE
, MAP_SHARED
},
6030 { TARGET_MAP_TYPE
, TARGET_MAP_PRIVATE
, MAP_TYPE
, MAP_PRIVATE
},
6031 { TARGET_MAP_TYPE
, TARGET_MAP_SHARED_VALIDATE
,
6032 MAP_TYPE
, MAP_SHARED_VALIDATE
},
6033 { TARGET_MAP_FIXED
, TARGET_MAP_FIXED
, MAP_FIXED
, MAP_FIXED
},
6034 { TARGET_MAP_ANONYMOUS
, TARGET_MAP_ANONYMOUS
,
6035 MAP_ANONYMOUS
, MAP_ANONYMOUS
},
6036 { TARGET_MAP_GROWSDOWN
, TARGET_MAP_GROWSDOWN
,
6037 MAP_GROWSDOWN
, MAP_GROWSDOWN
},
6038 { TARGET_MAP_DENYWRITE
, TARGET_MAP_DENYWRITE
,
6039 MAP_DENYWRITE
, MAP_DENYWRITE
},
6040 { TARGET_MAP_EXECUTABLE
, TARGET_MAP_EXECUTABLE
,
6041 MAP_EXECUTABLE
, MAP_EXECUTABLE
},
6042 { TARGET_MAP_LOCKED
, TARGET_MAP_LOCKED
, MAP_LOCKED
, MAP_LOCKED
},
6043 { TARGET_MAP_NORESERVE
, TARGET_MAP_NORESERVE
,
6044 MAP_NORESERVE
, MAP_NORESERVE
},
6045 { TARGET_MAP_HUGETLB
, TARGET_MAP_HUGETLB
, MAP_HUGETLB
, MAP_HUGETLB
},
6046 /* MAP_STACK had been ignored by the kernel for quite some time.
6047 Recognize it for the target insofar as we do not want to pass
6048 it through to the host. */
6049 { TARGET_MAP_STACK
, TARGET_MAP_STACK
, 0, 0 },
6050 { TARGET_MAP_SYNC
, TARGET_MAP_SYNC
, MAP_SYNC
, MAP_SYNC
},
6051 { TARGET_MAP_NONBLOCK
, TARGET_MAP_NONBLOCK
, MAP_NONBLOCK
, MAP_NONBLOCK
},
6052 { TARGET_MAP_POPULATE
, TARGET_MAP_POPULATE
, MAP_POPULATE
, MAP_POPULATE
},
6053 { TARGET_MAP_FIXED_NOREPLACE
, TARGET_MAP_FIXED_NOREPLACE
,
6054 MAP_FIXED_NOREPLACE
, MAP_FIXED_NOREPLACE
},
6055 { TARGET_MAP_UNINITIALIZED
, TARGET_MAP_UNINITIALIZED
,
6056 MAP_UNINITIALIZED
, MAP_UNINITIALIZED
},
6061 * NOTE: TARGET_ABI32 is defined for TARGET_I386 (but not for TARGET_X86_64)
6062 * TARGET_I386 is defined if TARGET_X86_64 is defined
6064 #if defined(TARGET_I386)
6066 /* NOTE: there is really one LDT for all the threads */
6067 static uint8_t *ldt_table
;
6069 static abi_long
read_ldt(abi_ulong ptr
, unsigned long bytecount
)
6076 size
= TARGET_LDT_ENTRIES
* TARGET_LDT_ENTRY_SIZE
;
6077 if (size
> bytecount
)
6079 p
= lock_user(VERIFY_WRITE
, ptr
, size
, 0);
6081 return -TARGET_EFAULT
;
6082 /* ??? Should this by byteswapped? */
6083 memcpy(p
, ldt_table
, size
);
6084 unlock_user(p
, ptr
, size
);
6088 /* XXX: add locking support */
6089 static abi_long
write_ldt(CPUX86State
*env
,
6090 abi_ulong ptr
, unsigned long bytecount
, int oldmode
)
6092 struct target_modify_ldt_ldt_s ldt_info
;
6093 struct target_modify_ldt_ldt_s
*target_ldt_info
;
6094 int seg_32bit
, contents
, read_exec_only
, limit_in_pages
;
6095 int seg_not_present
, useable
, lm
;
6096 uint32_t *lp
, entry_1
, entry_2
;
6098 if (bytecount
!= sizeof(ldt_info
))
6099 return -TARGET_EINVAL
;
6100 if (!lock_user_struct(VERIFY_READ
, target_ldt_info
, ptr
, 1))
6101 return -TARGET_EFAULT
;
6102 ldt_info
.entry_number
= tswap32(target_ldt_info
->entry_number
);
6103 ldt_info
.base_addr
= tswapal(target_ldt_info
->base_addr
);
6104 ldt_info
.limit
= tswap32(target_ldt_info
->limit
);
6105 ldt_info
.flags
= tswap32(target_ldt_info
->flags
);
6106 unlock_user_struct(target_ldt_info
, ptr
, 0);
6108 if (ldt_info
.entry_number
>= TARGET_LDT_ENTRIES
)
6109 return -TARGET_EINVAL
;
6110 seg_32bit
= ldt_info
.flags
& 1;
6111 contents
= (ldt_info
.flags
>> 1) & 3;
6112 read_exec_only
= (ldt_info
.flags
>> 3) & 1;
6113 limit_in_pages
= (ldt_info
.flags
>> 4) & 1;
6114 seg_not_present
= (ldt_info
.flags
>> 5) & 1;
6115 useable
= (ldt_info
.flags
>> 6) & 1;
6119 lm
= (ldt_info
.flags
>> 7) & 1;
6121 if (contents
== 3) {
6123 return -TARGET_EINVAL
;
6124 if (seg_not_present
== 0)
6125 return -TARGET_EINVAL
;
6127 /* allocate the LDT */
6129 env
->ldt
.base
= target_mmap(0,
6130 TARGET_LDT_ENTRIES
* TARGET_LDT_ENTRY_SIZE
,
6131 PROT_READ
|PROT_WRITE
,
6132 MAP_ANONYMOUS
|MAP_PRIVATE
, -1, 0);
6133 if (env
->ldt
.base
== -1)
6134 return -TARGET_ENOMEM
;
6135 memset(g2h_untagged(env
->ldt
.base
), 0,
6136 TARGET_LDT_ENTRIES
* TARGET_LDT_ENTRY_SIZE
);
6137 env
->ldt
.limit
= 0xffff;
6138 ldt_table
= g2h_untagged(env
->ldt
.base
);
6141 /* NOTE: same code as Linux kernel */
6142 /* Allow LDTs to be cleared by the user. */
6143 if (ldt_info
.base_addr
== 0 && ldt_info
.limit
== 0) {
6146 read_exec_only
== 1 &&
6148 limit_in_pages
== 0 &&
6149 seg_not_present
== 1 &&
6157 entry_1
= ((ldt_info
.base_addr
& 0x0000ffff) << 16) |
6158 (ldt_info
.limit
& 0x0ffff);
6159 entry_2
= (ldt_info
.base_addr
& 0xff000000) |
6160 ((ldt_info
.base_addr
& 0x00ff0000) >> 16) |
6161 (ldt_info
.limit
& 0xf0000) |
6162 ((read_exec_only
^ 1) << 9) |
6164 ((seg_not_present
^ 1) << 15) |
6166 (limit_in_pages
<< 23) |
6170 entry_2
|= (useable
<< 20);
6172 /* Install the new entry ... */
6174 lp
= (uint32_t *)(ldt_table
+ (ldt_info
.entry_number
<< 3));
6175 lp
[0] = tswap32(entry_1
);
6176 lp
[1] = tswap32(entry_2
);
6180 /* specific and weird i386 syscalls */
6181 static abi_long
do_modify_ldt(CPUX86State
*env
, int func
, abi_ulong ptr
,
6182 unsigned long bytecount
)
6188 ret
= read_ldt(ptr
, bytecount
);
6191 ret
= write_ldt(env
, ptr
, bytecount
, 1);
6194 ret
= write_ldt(env
, ptr
, bytecount
, 0);
6197 ret
= -TARGET_ENOSYS
;
6203 #if defined(TARGET_ABI32)
6204 abi_long
do_set_thread_area(CPUX86State
*env
, abi_ulong ptr
)
6206 uint64_t *gdt_table
= g2h_untagged(env
->gdt
.base
);
6207 struct target_modify_ldt_ldt_s ldt_info
;
6208 struct target_modify_ldt_ldt_s
*target_ldt_info
;
6209 int seg_32bit
, contents
, read_exec_only
, limit_in_pages
;
6210 int seg_not_present
, useable
, lm
;
6211 uint32_t *lp
, entry_1
, entry_2
;
6214 lock_user_struct(VERIFY_WRITE
, target_ldt_info
, ptr
, 1);
6215 if (!target_ldt_info
)
6216 return -TARGET_EFAULT
;
6217 ldt_info
.entry_number
= tswap32(target_ldt_info
->entry_number
);
6218 ldt_info
.base_addr
= tswapal(target_ldt_info
->base_addr
);
6219 ldt_info
.limit
= tswap32(target_ldt_info
->limit
);
6220 ldt_info
.flags
= tswap32(target_ldt_info
->flags
);
6221 if (ldt_info
.entry_number
== -1) {
6222 for (i
=TARGET_GDT_ENTRY_TLS_MIN
; i
<=TARGET_GDT_ENTRY_TLS_MAX
; i
++) {
6223 if (gdt_table
[i
] == 0) {
6224 ldt_info
.entry_number
= i
;
6225 target_ldt_info
->entry_number
= tswap32(i
);
6230 unlock_user_struct(target_ldt_info
, ptr
, 1);
6232 if (ldt_info
.entry_number
< TARGET_GDT_ENTRY_TLS_MIN
||
6233 ldt_info
.entry_number
> TARGET_GDT_ENTRY_TLS_MAX
)
6234 return -TARGET_EINVAL
;
6235 seg_32bit
= ldt_info
.flags
& 1;
6236 contents
= (ldt_info
.flags
>> 1) & 3;
6237 read_exec_only
= (ldt_info
.flags
>> 3) & 1;
6238 limit_in_pages
= (ldt_info
.flags
>> 4) & 1;
6239 seg_not_present
= (ldt_info
.flags
>> 5) & 1;
6240 useable
= (ldt_info
.flags
>> 6) & 1;
6244 lm
= (ldt_info
.flags
>> 7) & 1;
6247 if (contents
== 3) {
6248 if (seg_not_present
== 0)
6249 return -TARGET_EINVAL
;
6252 /* NOTE: same code as Linux kernel */
6253 /* Allow LDTs to be cleared by the user. */
6254 if (ldt_info
.base_addr
== 0 && ldt_info
.limit
== 0) {
6255 if ((contents
== 0 &&
6256 read_exec_only
== 1 &&
6258 limit_in_pages
== 0 &&
6259 seg_not_present
== 1 &&
6267 entry_1
= ((ldt_info
.base_addr
& 0x0000ffff) << 16) |
6268 (ldt_info
.limit
& 0x0ffff);
6269 entry_2
= (ldt_info
.base_addr
& 0xff000000) |
6270 ((ldt_info
.base_addr
& 0x00ff0000) >> 16) |
6271 (ldt_info
.limit
& 0xf0000) |
6272 ((read_exec_only
^ 1) << 9) |
6274 ((seg_not_present
^ 1) << 15) |
6276 (limit_in_pages
<< 23) |
6281 /* Install the new entry ... */
6283 lp
= (uint32_t *)(gdt_table
+ ldt_info
.entry_number
);
6284 lp
[0] = tswap32(entry_1
);
6285 lp
[1] = tswap32(entry_2
);
6289 static abi_long
do_get_thread_area(CPUX86State
*env
, abi_ulong ptr
)
6291 struct target_modify_ldt_ldt_s
*target_ldt_info
;
6292 uint64_t *gdt_table
= g2h_untagged(env
->gdt
.base
);
6293 uint32_t base_addr
, limit
, flags
;
6294 int seg_32bit
, contents
, read_exec_only
, limit_in_pages
, idx
;
6295 int seg_not_present
, useable
, lm
;
6296 uint32_t *lp
, entry_1
, entry_2
;
6298 lock_user_struct(VERIFY_WRITE
, target_ldt_info
, ptr
, 1);
6299 if (!target_ldt_info
)
6300 return -TARGET_EFAULT
;
6301 idx
= tswap32(target_ldt_info
->entry_number
);
6302 if (idx
< TARGET_GDT_ENTRY_TLS_MIN
||
6303 idx
> TARGET_GDT_ENTRY_TLS_MAX
) {
6304 unlock_user_struct(target_ldt_info
, ptr
, 1);
6305 return -TARGET_EINVAL
;
6307 lp
= (uint32_t *)(gdt_table
+ idx
);
6308 entry_1
= tswap32(lp
[0]);
6309 entry_2
= tswap32(lp
[1]);
6311 read_exec_only
= ((entry_2
>> 9) & 1) ^ 1;
6312 contents
= (entry_2
>> 10) & 3;
6313 seg_not_present
= ((entry_2
>> 15) & 1) ^ 1;
6314 seg_32bit
= (entry_2
>> 22) & 1;
6315 limit_in_pages
= (entry_2
>> 23) & 1;
6316 useable
= (entry_2
>> 20) & 1;
6320 lm
= (entry_2
>> 21) & 1;
6322 flags
= (seg_32bit
<< 0) | (contents
<< 1) |
6323 (read_exec_only
<< 3) | (limit_in_pages
<< 4) |
6324 (seg_not_present
<< 5) | (useable
<< 6) | (lm
<< 7);
6325 limit
= (entry_1
& 0xffff) | (entry_2
& 0xf0000);
6326 base_addr
= (entry_1
>> 16) |
6327 (entry_2
& 0xff000000) |
6328 ((entry_2
& 0xff) << 16);
6329 target_ldt_info
->base_addr
= tswapal(base_addr
);
6330 target_ldt_info
->limit
= tswap32(limit
);
6331 target_ldt_info
->flags
= tswap32(flags
);
6332 unlock_user_struct(target_ldt_info
, ptr
, 1);
6336 abi_long
do_arch_prctl(CPUX86State
*env
, int code
, abi_ulong addr
)
6338 return -TARGET_ENOSYS
;
6341 abi_long
do_arch_prctl(CPUX86State
*env
, int code
, abi_ulong addr
)
6348 case TARGET_ARCH_SET_GS
:
6349 case TARGET_ARCH_SET_FS
:
6350 if (code
== TARGET_ARCH_SET_GS
)
6354 cpu_x86_load_seg(env
, idx
, 0);
6355 env
->segs
[idx
].base
= addr
;
6357 case TARGET_ARCH_GET_GS
:
6358 case TARGET_ARCH_GET_FS
:
6359 if (code
== TARGET_ARCH_GET_GS
)
6363 val
= env
->segs
[idx
].base
;
6364 if (put_user(val
, addr
, abi_ulong
))
6365 ret
= -TARGET_EFAULT
;
6368 ret
= -TARGET_EINVAL
;
6373 #endif /* defined(TARGET_ABI32 */
6374 #endif /* defined(TARGET_I386) */
6377 * These constants are generic. Supply any that are missing from the host.
6380 # define PR_SET_NAME 15
6381 # define PR_GET_NAME 16
6383 #ifndef PR_SET_FP_MODE
6384 # define PR_SET_FP_MODE 45
6385 # define PR_GET_FP_MODE 46
6386 # define PR_FP_MODE_FR (1 << 0)
6387 # define PR_FP_MODE_FRE (1 << 1)
6389 #ifndef PR_SVE_SET_VL
6390 # define PR_SVE_SET_VL 50
6391 # define PR_SVE_GET_VL 51
6392 # define PR_SVE_VL_LEN_MASK 0xffff
6393 # define PR_SVE_VL_INHERIT (1 << 17)
6395 #ifndef PR_PAC_RESET_KEYS
6396 # define PR_PAC_RESET_KEYS 54
6397 # define PR_PAC_APIAKEY (1 << 0)
6398 # define PR_PAC_APIBKEY (1 << 1)
6399 # define PR_PAC_APDAKEY (1 << 2)
6400 # define PR_PAC_APDBKEY (1 << 3)
6401 # define PR_PAC_APGAKEY (1 << 4)
6403 #ifndef PR_SET_TAGGED_ADDR_CTRL
6404 # define PR_SET_TAGGED_ADDR_CTRL 55
6405 # define PR_GET_TAGGED_ADDR_CTRL 56
6406 # define PR_TAGGED_ADDR_ENABLE (1UL << 0)
6408 #ifndef PR_MTE_TCF_SHIFT
6409 # define PR_MTE_TCF_SHIFT 1
6410 # define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
6411 # define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
6412 # define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
6413 # define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
6414 # define PR_MTE_TAG_SHIFT 3
6415 # define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
6417 #ifndef PR_SET_IO_FLUSHER
6418 # define PR_SET_IO_FLUSHER 57
6419 # define PR_GET_IO_FLUSHER 58
6421 #ifndef PR_SET_SYSCALL_USER_DISPATCH
6422 # define PR_SET_SYSCALL_USER_DISPATCH 59
6424 #ifndef PR_SME_SET_VL
6425 # define PR_SME_SET_VL 63
6426 # define PR_SME_GET_VL 64
6427 # define PR_SME_VL_LEN_MASK 0xffff
6428 # define PR_SME_VL_INHERIT (1 << 17)
6431 #include "target_prctl.h"
6433 static abi_long
do_prctl_inval0(CPUArchState
*env
)
6435 return -TARGET_EINVAL
;
6438 static abi_long
do_prctl_inval1(CPUArchState
*env
, abi_long arg2
)
6440 return -TARGET_EINVAL
;
6443 #ifndef do_prctl_get_fp_mode
6444 #define do_prctl_get_fp_mode do_prctl_inval0
6446 #ifndef do_prctl_set_fp_mode
6447 #define do_prctl_set_fp_mode do_prctl_inval1
6449 #ifndef do_prctl_sve_get_vl
6450 #define do_prctl_sve_get_vl do_prctl_inval0
6452 #ifndef do_prctl_sve_set_vl
6453 #define do_prctl_sve_set_vl do_prctl_inval1
6455 #ifndef do_prctl_reset_keys
6456 #define do_prctl_reset_keys do_prctl_inval1
6458 #ifndef do_prctl_set_tagged_addr_ctrl
6459 #define do_prctl_set_tagged_addr_ctrl do_prctl_inval1
6461 #ifndef do_prctl_get_tagged_addr_ctrl
6462 #define do_prctl_get_tagged_addr_ctrl do_prctl_inval0
6464 #ifndef do_prctl_get_unalign
6465 #define do_prctl_get_unalign do_prctl_inval1
6467 #ifndef do_prctl_set_unalign
6468 #define do_prctl_set_unalign do_prctl_inval1
6470 #ifndef do_prctl_sme_get_vl
6471 #define do_prctl_sme_get_vl do_prctl_inval0
6473 #ifndef do_prctl_sme_set_vl
6474 #define do_prctl_sme_set_vl do_prctl_inval1
6477 static abi_long
do_prctl(CPUArchState
*env
, abi_long option
, abi_long arg2
,
6478 abi_long arg3
, abi_long arg4
, abi_long arg5
)
6483 case PR_GET_PDEATHSIG
:
6486 ret
= get_errno(prctl(PR_GET_PDEATHSIG
, &deathsig
,
6488 if (!is_error(ret
) &&
6489 put_user_s32(host_to_target_signal(deathsig
), arg2
)) {
6490 return -TARGET_EFAULT
;
6494 case PR_SET_PDEATHSIG
:
6495 return get_errno(prctl(PR_SET_PDEATHSIG
, target_to_host_signal(arg2
),
6499 void *name
= lock_user(VERIFY_WRITE
, arg2
, 16, 1);
6501 return -TARGET_EFAULT
;
6503 ret
= get_errno(prctl(PR_GET_NAME
, (uintptr_t)name
,
6505 unlock_user(name
, arg2
, 16);
6510 void *name
= lock_user(VERIFY_READ
, arg2
, 16, 1);
6512 return -TARGET_EFAULT
;
6514 ret
= get_errno(prctl(PR_SET_NAME
, (uintptr_t)name
,
6516 unlock_user(name
, arg2
, 0);
6519 case PR_GET_FP_MODE
:
6520 return do_prctl_get_fp_mode(env
);
6521 case PR_SET_FP_MODE
:
6522 return do_prctl_set_fp_mode(env
, arg2
);
6524 return do_prctl_sve_get_vl(env
);
6526 return do_prctl_sve_set_vl(env
, arg2
);
6528 return do_prctl_sme_get_vl(env
);
6530 return do_prctl_sme_set_vl(env
, arg2
);
6531 case PR_PAC_RESET_KEYS
:
6532 if (arg3
|| arg4
|| arg5
) {
6533 return -TARGET_EINVAL
;
6535 return do_prctl_reset_keys(env
, arg2
);
6536 case PR_SET_TAGGED_ADDR_CTRL
:
6537 if (arg3
|| arg4
|| arg5
) {
6538 return -TARGET_EINVAL
;
6540 return do_prctl_set_tagged_addr_ctrl(env
, arg2
);
6541 case PR_GET_TAGGED_ADDR_CTRL
:
6542 if (arg2
|| arg3
|| arg4
|| arg5
) {
6543 return -TARGET_EINVAL
;
6545 return do_prctl_get_tagged_addr_ctrl(env
);
6547 case PR_GET_UNALIGN
:
6548 return do_prctl_get_unalign(env
, arg2
);
6549 case PR_SET_UNALIGN
:
6550 return do_prctl_set_unalign(env
, arg2
);
6552 case PR_CAP_AMBIENT
:
6553 case PR_CAPBSET_READ
:
6554 case PR_CAPBSET_DROP
:
6555 case PR_GET_DUMPABLE
:
6556 case PR_SET_DUMPABLE
:
6557 case PR_GET_KEEPCAPS
:
6558 case PR_SET_KEEPCAPS
:
6559 case PR_GET_SECUREBITS
:
6560 case PR_SET_SECUREBITS
:
6563 case PR_GET_TIMERSLACK
:
6564 case PR_SET_TIMERSLACK
:
6566 case PR_MCE_KILL_GET
:
6567 case PR_GET_NO_NEW_PRIVS
:
6568 case PR_SET_NO_NEW_PRIVS
:
6569 case PR_GET_IO_FLUSHER
:
6570 case PR_SET_IO_FLUSHER
:
6571 /* Some prctl options have no pointer arguments and we can pass on. */
6572 return get_errno(prctl(option
, arg2
, arg3
, arg4
, arg5
));
6574 case PR_GET_CHILD_SUBREAPER
:
6575 case PR_SET_CHILD_SUBREAPER
:
6576 case PR_GET_SPECULATION_CTRL
:
6577 case PR_SET_SPECULATION_CTRL
:
6578 case PR_GET_TID_ADDRESS
:
6580 return -TARGET_EINVAL
;
6584 /* Was used for SPE on PowerPC. */
6585 return -TARGET_EINVAL
;
6592 case PR_GET_SECCOMP
:
6593 case PR_SET_SECCOMP
:
6594 case PR_SET_SYSCALL_USER_DISPATCH
:
6595 case PR_GET_THP_DISABLE
:
6596 case PR_SET_THP_DISABLE
:
6599 /* Disable to prevent the target disabling stuff we need. */
6600 return -TARGET_EINVAL
;
6603 qemu_log_mask(LOG_UNIMP
, "Unsupported prctl: " TARGET_ABI_FMT_ld
"\n",
6605 return -TARGET_EINVAL
;
6609 #define NEW_STACK_SIZE 0x40000
6612 static pthread_mutex_t clone_lock
= PTHREAD_MUTEX_INITIALIZER
;
6615 pthread_mutex_t mutex
;
6616 pthread_cond_t cond
;
6619 abi_ulong child_tidptr
;
6620 abi_ulong parent_tidptr
;
6624 static void *clone_func(void *arg
)
6626 new_thread_info
*info
= arg
;
6631 rcu_register_thread();
6632 tcg_register_thread();
6636 ts
= (TaskState
*)cpu
->opaque
;
6637 info
->tid
= sys_gettid();
6639 if (info
->child_tidptr
)
6640 put_user_u32(info
->tid
, info
->child_tidptr
);
6641 if (info
->parent_tidptr
)
6642 put_user_u32(info
->tid
, info
->parent_tidptr
);
6643 qemu_guest_random_seed_thread_part2(cpu
->random_seed
);
6644 /* Enable signals. */
6645 sigprocmask(SIG_SETMASK
, &info
->sigmask
, NULL
);
6646 /* Signal to the parent that we're ready. */
6647 pthread_mutex_lock(&info
->mutex
);
6648 pthread_cond_broadcast(&info
->cond
);
6649 pthread_mutex_unlock(&info
->mutex
);
6650 /* Wait until the parent has finished initializing the tls state. */
6651 pthread_mutex_lock(&clone_lock
);
6652 pthread_mutex_unlock(&clone_lock
);
6658 /* do_fork() Must return host values and target errnos (unlike most
6659 do_*() functions). */
6660 static int do_fork(CPUArchState
*env
, unsigned int flags
, abi_ulong newsp
,
6661 abi_ulong parent_tidptr
, target_ulong newtls
,
6662 abi_ulong child_tidptr
)
6664 CPUState
*cpu
= env_cpu(env
);
6668 CPUArchState
*new_env
;
6671 flags
&= ~CLONE_IGNORED_FLAGS
;
6673 /* Emulate vfork() with fork() */
6674 if (flags
& CLONE_VFORK
)
6675 flags
&= ~(CLONE_VFORK
| CLONE_VM
);
6677 if (flags
& CLONE_VM
) {
6678 TaskState
*parent_ts
= (TaskState
*)cpu
->opaque
;
6679 new_thread_info info
;
6680 pthread_attr_t attr
;
6682 if (((flags
& CLONE_THREAD_FLAGS
) != CLONE_THREAD_FLAGS
) ||
6683 (flags
& CLONE_INVALID_THREAD_FLAGS
)) {
6684 return -TARGET_EINVAL
;
6687 ts
= g_new0(TaskState
, 1);
6688 init_task_state(ts
);
6690 /* Grab a mutex so that thread setup appears atomic. */
6691 pthread_mutex_lock(&clone_lock
);
6694 * If this is our first additional thread, we need to ensure we
6695 * generate code for parallel execution and flush old translations.
6696 * Do this now so that the copy gets CF_PARALLEL too.
6698 if (!(cpu
->tcg_cflags
& CF_PARALLEL
)) {
6699 cpu
->tcg_cflags
|= CF_PARALLEL
;
6703 /* we create a new CPU instance. */
6704 new_env
= cpu_copy(env
);
6705 /* Init regs that differ from the parent. */
6706 cpu_clone_regs_child(new_env
, newsp
, flags
);
6707 cpu_clone_regs_parent(env
, flags
);
6708 new_cpu
= env_cpu(new_env
);
6709 new_cpu
->opaque
= ts
;
6710 ts
->bprm
= parent_ts
->bprm
;
6711 ts
->info
= parent_ts
->info
;
6712 ts
->signal_mask
= parent_ts
->signal_mask
;
6714 if (flags
& CLONE_CHILD_CLEARTID
) {
6715 ts
->child_tidptr
= child_tidptr
;
6718 if (flags
& CLONE_SETTLS
) {
6719 cpu_set_tls (new_env
, newtls
);
6722 memset(&info
, 0, sizeof(info
));
6723 pthread_mutex_init(&info
.mutex
, NULL
);
6724 pthread_mutex_lock(&info
.mutex
);
6725 pthread_cond_init(&info
.cond
, NULL
);
6727 if (flags
& CLONE_CHILD_SETTID
) {
6728 info
.child_tidptr
= child_tidptr
;
6730 if (flags
& CLONE_PARENT_SETTID
) {
6731 info
.parent_tidptr
= parent_tidptr
;
6734 ret
= pthread_attr_init(&attr
);
6735 ret
= pthread_attr_setstacksize(&attr
, NEW_STACK_SIZE
);
6736 ret
= pthread_attr_setdetachstate(&attr
, PTHREAD_CREATE_DETACHED
);
6737 /* It is not safe to deliver signals until the child has finished
6738 initializing, so temporarily block all signals. */
6739 sigfillset(&sigmask
);
6740 sigprocmask(SIG_BLOCK
, &sigmask
, &info
.sigmask
);
6741 cpu
->random_seed
= qemu_guest_random_seed_thread_part1();
6743 ret
= pthread_create(&info
.thread
, &attr
, clone_func
, &info
);
6744 /* TODO: Free new CPU state if thread creation failed. */
6746 sigprocmask(SIG_SETMASK
, &info
.sigmask
, NULL
);
6747 pthread_attr_destroy(&attr
);
6749 /* Wait for the child to initialize. */
6750 pthread_cond_wait(&info
.cond
, &info
.mutex
);
6755 pthread_mutex_unlock(&info
.mutex
);
6756 pthread_cond_destroy(&info
.cond
);
6757 pthread_mutex_destroy(&info
.mutex
);
6758 pthread_mutex_unlock(&clone_lock
);
6760 /* if no CLONE_VM, we consider it is a fork */
6761 if (flags
& CLONE_INVALID_FORK_FLAGS
) {
6762 return -TARGET_EINVAL
;
6765 /* We can't support custom termination signals */
6766 if ((flags
& CSIGNAL
) != TARGET_SIGCHLD
) {
6767 return -TARGET_EINVAL
;
6770 #if !defined(__NR_pidfd_open) || !defined(TARGET_NR_pidfd_open)
6771 if (flags
& CLONE_PIDFD
) {
6772 return -TARGET_EINVAL
;
6776 /* Can not allow CLONE_PIDFD with CLONE_PARENT_SETTID */
6777 if ((flags
& CLONE_PIDFD
) && (flags
& CLONE_PARENT_SETTID
)) {
6778 return -TARGET_EINVAL
;
6781 if (block_signals()) {
6782 return -QEMU_ERESTARTSYS
;
6788 /* Child Process. */
6789 cpu_clone_regs_child(env
, newsp
, flags
);
6791 /* There is a race condition here. The parent process could
6792 theoretically read the TID in the child process before the child
6793 tid is set. This would require using either ptrace
6794 (not implemented) or having *_tidptr to point at a shared memory
6795 mapping. We can't repeat the spinlock hack used above because
6796 the child process gets its own copy of the lock. */
6797 if (flags
& CLONE_CHILD_SETTID
)
6798 put_user_u32(sys_gettid(), child_tidptr
);
6799 if (flags
& CLONE_PARENT_SETTID
)
6800 put_user_u32(sys_gettid(), parent_tidptr
);
6801 ts
= (TaskState
*)cpu
->opaque
;
6802 if (flags
& CLONE_SETTLS
)
6803 cpu_set_tls (env
, newtls
);
6804 if (flags
& CLONE_CHILD_CLEARTID
)
6805 ts
->child_tidptr
= child_tidptr
;
6807 cpu_clone_regs_parent(env
, flags
);
6808 if (flags
& CLONE_PIDFD
) {
6810 #if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
6811 int pid_child
= ret
;
6812 pid_fd
= pidfd_open(pid_child
, 0);
6814 fcntl(pid_fd
, F_SETFD
, fcntl(pid_fd
, F_GETFL
)
6820 put_user_u32(pid_fd
, parent_tidptr
);
6824 g_assert(!cpu_in_exclusive_context(cpu
));
6829 /* warning : doesn't handle linux specific flags... */
6830 static int target_to_host_fcntl_cmd(int cmd
)
6835 case TARGET_F_DUPFD
:
6836 case TARGET_F_GETFD
:
6837 case TARGET_F_SETFD
:
6838 case TARGET_F_GETFL
:
6839 case TARGET_F_SETFL
:
6840 case TARGET_F_OFD_GETLK
:
6841 case TARGET_F_OFD_SETLK
:
6842 case TARGET_F_OFD_SETLKW
:
6845 case TARGET_F_GETLK
:
6848 case TARGET_F_SETLK
:
6851 case TARGET_F_SETLKW
:
6854 case TARGET_F_GETOWN
:
6857 case TARGET_F_SETOWN
:
6860 case TARGET_F_GETSIG
:
6863 case TARGET_F_SETSIG
:
6866 #if TARGET_ABI_BITS == 32
6867 case TARGET_F_GETLK64
:
6870 case TARGET_F_SETLK64
:
6873 case TARGET_F_SETLKW64
:
6877 case TARGET_F_SETLEASE
:
6880 case TARGET_F_GETLEASE
:
6883 #ifdef F_DUPFD_CLOEXEC
6884 case TARGET_F_DUPFD_CLOEXEC
:
6885 ret
= F_DUPFD_CLOEXEC
;
6888 case TARGET_F_NOTIFY
:
6892 case TARGET_F_GETOWN_EX
:
6897 case TARGET_F_SETOWN_EX
:
6902 case TARGET_F_SETPIPE_SZ
:
6905 case TARGET_F_GETPIPE_SZ
:
6910 case TARGET_F_ADD_SEALS
:
6913 case TARGET_F_GET_SEALS
:
6918 ret
= -TARGET_EINVAL
;
6922 #if defined(__powerpc64__)
6923 /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
6924 * is not supported by kernel. The glibc fcntl call actually adjusts
6925 * them to 5, 6 and 7 before making the syscall(). Since we make the
6926 * syscall directly, adjust to what is supported by the kernel.
6928 if (ret
>= F_GETLK64
&& ret
<= F_SETLKW64
) {
6929 ret
-= F_GETLK64
- 5;
6936 #define FLOCK_TRANSTBL \
6938 TRANSTBL_CONVERT(F_RDLCK); \
6939 TRANSTBL_CONVERT(F_WRLCK); \
6940 TRANSTBL_CONVERT(F_UNLCK); \
6943 static int target_to_host_flock(int type
)
6945 #define TRANSTBL_CONVERT(a) case TARGET_##a: return a
6947 #undef TRANSTBL_CONVERT
6948 return -TARGET_EINVAL
;
6951 static int host_to_target_flock(int type
)
6953 #define TRANSTBL_CONVERT(a) case a: return TARGET_##a
6955 #undef TRANSTBL_CONVERT
6956 /* if we don't know how to convert the value coming
6957 * from the host we copy to the target field as-is
6962 static inline abi_long
copy_from_user_flock(struct flock64
*fl
,
6963 abi_ulong target_flock_addr
)
6965 struct target_flock
*target_fl
;
6968 if (!lock_user_struct(VERIFY_READ
, target_fl
, target_flock_addr
, 1)) {
6969 return -TARGET_EFAULT
;
6972 __get_user(l_type
, &target_fl
->l_type
);
6973 l_type
= target_to_host_flock(l_type
);
6977 fl
->l_type
= l_type
;
6978 __get_user(fl
->l_whence
, &target_fl
->l_whence
);
6979 __get_user(fl
->l_start
, &target_fl
->l_start
);
6980 __get_user(fl
->l_len
, &target_fl
->l_len
);
6981 __get_user(fl
->l_pid
, &target_fl
->l_pid
);
6982 unlock_user_struct(target_fl
, target_flock_addr
, 0);
6986 static inline abi_long
copy_to_user_flock(abi_ulong target_flock_addr
,
6987 const struct flock64
*fl
)
6989 struct target_flock
*target_fl
;
6992 if (!lock_user_struct(VERIFY_WRITE
, target_fl
, target_flock_addr
, 0)) {
6993 return -TARGET_EFAULT
;
6996 l_type
= host_to_target_flock(fl
->l_type
);
6997 __put_user(l_type
, &target_fl
->l_type
);
6998 __put_user(fl
->l_whence
, &target_fl
->l_whence
);
6999 __put_user(fl
->l_start
, &target_fl
->l_start
);
7000 __put_user(fl
->l_len
, &target_fl
->l_len
);
7001 __put_user(fl
->l_pid
, &target_fl
->l_pid
);
7002 unlock_user_struct(target_fl
, target_flock_addr
, 1);
7006 typedef abi_long
from_flock64_fn(struct flock64
*fl
, abi_ulong target_addr
);
7007 typedef abi_long
to_flock64_fn(abi_ulong target_addr
, const struct flock64
*fl
);
7009 #if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
7010 struct target_oabi_flock64
{
7018 static inline abi_long
copy_from_user_oabi_flock64(struct flock64
*fl
,
7019 abi_ulong target_flock_addr
)
7021 struct target_oabi_flock64
*target_fl
;
7024 if (!lock_user_struct(VERIFY_READ
, target_fl
, target_flock_addr
, 1)) {
7025 return -TARGET_EFAULT
;
7028 __get_user(l_type
, &target_fl
->l_type
);
7029 l_type
= target_to_host_flock(l_type
);
7033 fl
->l_type
= l_type
;
7034 __get_user(fl
->l_whence
, &target_fl
->l_whence
);
7035 __get_user(fl
->l_start
, &target_fl
->l_start
);
7036 __get_user(fl
->l_len
, &target_fl
->l_len
);
7037 __get_user(fl
->l_pid
, &target_fl
->l_pid
);
7038 unlock_user_struct(target_fl
, target_flock_addr
, 0);
7042 static inline abi_long
copy_to_user_oabi_flock64(abi_ulong target_flock_addr
,
7043 const struct flock64
*fl
)
7045 struct target_oabi_flock64
*target_fl
;
7048 if (!lock_user_struct(VERIFY_WRITE
, target_fl
, target_flock_addr
, 0)) {
7049 return -TARGET_EFAULT
;
7052 l_type
= host_to_target_flock(fl
->l_type
);
7053 __put_user(l_type
, &target_fl
->l_type
);
7054 __put_user(fl
->l_whence
, &target_fl
->l_whence
);
7055 __put_user(fl
->l_start
, &target_fl
->l_start
);
7056 __put_user(fl
->l_len
, &target_fl
->l_len
);
7057 __put_user(fl
->l_pid
, &target_fl
->l_pid
);
7058 unlock_user_struct(target_fl
, target_flock_addr
, 1);
7063 static inline abi_long
copy_from_user_flock64(struct flock64
*fl
,
7064 abi_ulong target_flock_addr
)
7066 struct target_flock64
*target_fl
;
7069 if (!lock_user_struct(VERIFY_READ
, target_fl
, target_flock_addr
, 1)) {
7070 return -TARGET_EFAULT
;
7073 __get_user(l_type
, &target_fl
->l_type
);
7074 l_type
= target_to_host_flock(l_type
);
7078 fl
->l_type
= l_type
;
7079 __get_user(fl
->l_whence
, &target_fl
->l_whence
);
7080 __get_user(fl
->l_start
, &target_fl
->l_start
);
7081 __get_user(fl
->l_len
, &target_fl
->l_len
);
7082 __get_user(fl
->l_pid
, &target_fl
->l_pid
);
7083 unlock_user_struct(target_fl
, target_flock_addr
, 0);
7087 static inline abi_long
copy_to_user_flock64(abi_ulong target_flock_addr
,
7088 const struct flock64
*fl
)
7090 struct target_flock64
*target_fl
;
7093 if (!lock_user_struct(VERIFY_WRITE
, target_fl
, target_flock_addr
, 0)) {
7094 return -TARGET_EFAULT
;
7097 l_type
= host_to_target_flock(fl
->l_type
);
7098 __put_user(l_type
, &target_fl
->l_type
);
7099 __put_user(fl
->l_whence
, &target_fl
->l_whence
);
7100 __put_user(fl
->l_start
, &target_fl
->l_start
);
7101 __put_user(fl
->l_len
, &target_fl
->l_len
);
7102 __put_user(fl
->l_pid
, &target_fl
->l_pid
);
7103 unlock_user_struct(target_fl
, target_flock_addr
, 1);
7107 static abi_long
do_fcntl(int fd
, int cmd
, abi_ulong arg
)
7109 struct flock64 fl64
;
7111 struct f_owner_ex fox
;
7112 struct target_f_owner_ex
*target_fox
;
7115 int host_cmd
= target_to_host_fcntl_cmd(cmd
);
7117 if (host_cmd
== -TARGET_EINVAL
)
7121 case TARGET_F_GETLK
:
7122 ret
= copy_from_user_flock(&fl64
, arg
);
7126 ret
= get_errno(safe_fcntl(fd
, host_cmd
, &fl64
));
7128 ret
= copy_to_user_flock(arg
, &fl64
);
7132 case TARGET_F_SETLK
:
7133 case TARGET_F_SETLKW
:
7134 ret
= copy_from_user_flock(&fl64
, arg
);
7138 ret
= get_errno(safe_fcntl(fd
, host_cmd
, &fl64
));
7141 case TARGET_F_GETLK64
:
7142 case TARGET_F_OFD_GETLK
:
7143 ret
= copy_from_user_flock64(&fl64
, arg
);
7147 ret
= get_errno(safe_fcntl(fd
, host_cmd
, &fl64
));
7149 ret
= copy_to_user_flock64(arg
, &fl64
);
7152 case TARGET_F_SETLK64
:
7153 case TARGET_F_SETLKW64
:
7154 case TARGET_F_OFD_SETLK
:
7155 case TARGET_F_OFD_SETLKW
:
7156 ret
= copy_from_user_flock64(&fl64
, arg
);
7160 ret
= get_errno(safe_fcntl(fd
, host_cmd
, &fl64
));
7163 case TARGET_F_GETFL
:
7164 ret
= get_errno(safe_fcntl(fd
, host_cmd
, arg
));
7166 ret
= host_to_target_bitmask(ret
, fcntl_flags_tbl
);
7167 /* tell 32-bit guests it uses largefile on 64-bit hosts: */
7168 if (O_LARGEFILE
== 0 && HOST_LONG_BITS
== 64) {
7169 ret
|= TARGET_O_LARGEFILE
;
7174 case TARGET_F_SETFL
:
7175 ret
= get_errno(safe_fcntl(fd
, host_cmd
,
7176 target_to_host_bitmask(arg
,
7181 case TARGET_F_GETOWN_EX
:
7182 ret
= get_errno(safe_fcntl(fd
, host_cmd
, &fox
));
7184 if (!lock_user_struct(VERIFY_WRITE
, target_fox
, arg
, 0))
7185 return -TARGET_EFAULT
;
7186 target_fox
->type
= tswap32(fox
.type
);
7187 target_fox
->pid
= tswap32(fox
.pid
);
7188 unlock_user_struct(target_fox
, arg
, 1);
7194 case TARGET_F_SETOWN_EX
:
7195 if (!lock_user_struct(VERIFY_READ
, target_fox
, arg
, 1))
7196 return -TARGET_EFAULT
;
7197 fox
.type
= tswap32(target_fox
->type
);
7198 fox
.pid
= tswap32(target_fox
->pid
);
7199 unlock_user_struct(target_fox
, arg
, 0);
7200 ret
= get_errno(safe_fcntl(fd
, host_cmd
, &fox
));
7204 case TARGET_F_SETSIG
:
7205 ret
= get_errno(safe_fcntl(fd
, host_cmd
, target_to_host_signal(arg
)));
7208 case TARGET_F_GETSIG
:
7209 ret
= host_to_target_signal(get_errno(safe_fcntl(fd
, host_cmd
, arg
)));
7212 case TARGET_F_SETOWN
:
7213 case TARGET_F_GETOWN
:
7214 case TARGET_F_SETLEASE
:
7215 case TARGET_F_GETLEASE
:
7216 case TARGET_F_SETPIPE_SZ
:
7217 case TARGET_F_GETPIPE_SZ
:
7218 case TARGET_F_ADD_SEALS
:
7219 case TARGET_F_GET_SEALS
:
7220 ret
= get_errno(safe_fcntl(fd
, host_cmd
, arg
));
7224 ret
= get_errno(safe_fcntl(fd
, cmd
, arg
));
7232 static inline int high2lowuid(int uid
)
7240 static inline int high2lowgid(int gid
)
7248 static inline int low2highuid(int uid
)
7250 if ((int16_t)uid
== -1)
7256 static inline int low2highgid(int gid
)
7258 if ((int16_t)gid
== -1)
7263 static inline int tswapid(int id
)
7268 #define put_user_id(x, gaddr) put_user_u16(x, gaddr)
7270 #else /* !USE_UID16 */
7271 static inline int high2lowuid(int uid
)
7275 static inline int high2lowgid(int gid
)
7279 static inline int low2highuid(int uid
)
7283 static inline int low2highgid(int gid
)
7287 static inline int tswapid(int id
)
7292 #define put_user_id(x, gaddr) put_user_u32(x, gaddr)
7294 #endif /* USE_UID16 */
7296 /* We must do direct syscalls for setting UID/GID, because we want to
7297 * implement the Linux system call semantics of "change only for this thread",
7298 * not the libc/POSIX semantics of "change for all threads in process".
7299 * (See http://ewontfix.com/17/ for more details.)
7300 * We use the 32-bit version of the syscalls if present; if it is not
7301 * then either the host architecture supports 32-bit UIDs natively with
7302 * the standard syscall, or the 16-bit UID is the best we can do.
7304 #ifdef __NR_setuid32
7305 #define __NR_sys_setuid __NR_setuid32
7307 #define __NR_sys_setuid __NR_setuid
7309 #ifdef __NR_setgid32
7310 #define __NR_sys_setgid __NR_setgid32
7312 #define __NR_sys_setgid __NR_setgid
7314 #ifdef __NR_setresuid32
7315 #define __NR_sys_setresuid __NR_setresuid32
7317 #define __NR_sys_setresuid __NR_setresuid
7319 #ifdef __NR_setresgid32
7320 #define __NR_sys_setresgid __NR_setresgid32
7322 #define __NR_sys_setresgid __NR_setresgid
7325 _syscall1(int, sys_setuid
, uid_t
, uid
)
7326 _syscall1(int, sys_setgid
, gid_t
, gid
)
7327 _syscall3(int, sys_setresuid
, uid_t
, ruid
, uid_t
, euid
, uid_t
, suid
)
7328 _syscall3(int, sys_setresgid
, gid_t
, rgid
, gid_t
, egid
, gid_t
, sgid
)
7330 void syscall_init(void)
7333 const argtype
*arg_type
;
7336 thunk_init(STRUCT_MAX
);
7338 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
7339 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
7340 #include "syscall_types.h"
7342 #undef STRUCT_SPECIAL
7344 /* we patch the ioctl size if necessary. We rely on the fact that
7345 no ioctl has all the bits at '1' in the size field */
7347 while (ie
->target_cmd
!= 0) {
7348 if (((ie
->target_cmd
>> TARGET_IOC_SIZESHIFT
) & TARGET_IOC_SIZEMASK
) ==
7349 TARGET_IOC_SIZEMASK
) {
7350 arg_type
= ie
->arg_type
;
7351 if (arg_type
[0] != TYPE_PTR
) {
7352 fprintf(stderr
, "cannot patch size for ioctl 0x%x\n",
7357 size
= thunk_type_size(arg_type
, 0);
7358 ie
->target_cmd
= (ie
->target_cmd
&
7359 ~(TARGET_IOC_SIZEMASK
<< TARGET_IOC_SIZESHIFT
)) |
7360 (size
<< TARGET_IOC_SIZESHIFT
);
7363 /* automatic consistency check if same arch */
7364 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
7365 (defined(__x86_64__) && defined(TARGET_X86_64))
7366 if (unlikely(ie
->target_cmd
!= ie
->host_cmd
)) {
7367 fprintf(stderr
, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
7368 ie
->name
, ie
->target_cmd
, ie
->host_cmd
);
7375 #ifdef TARGET_NR_truncate64
7376 static inline abi_long
target_truncate64(CPUArchState
*cpu_env
, const char *arg1
,
7381 if (regpairs_aligned(cpu_env
, TARGET_NR_truncate64
)) {
7385 return get_errno(truncate64(arg1
, target_offset64(arg2
, arg3
)));
7389 #ifdef TARGET_NR_ftruncate64
7390 static inline abi_long
target_ftruncate64(CPUArchState
*cpu_env
, abi_long arg1
,
7395 if (regpairs_aligned(cpu_env
, TARGET_NR_ftruncate64
)) {
7399 return get_errno(ftruncate64(arg1
, target_offset64(arg2
, arg3
)));
7403 #if defined(TARGET_NR_timer_settime) || \
7404 (defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
7405 static inline abi_long
target_to_host_itimerspec(struct itimerspec
*host_its
,
7406 abi_ulong target_addr
)
7408 if (target_to_host_timespec(&host_its
->it_interval
, target_addr
+
7409 offsetof(struct target_itimerspec
,
7411 target_to_host_timespec(&host_its
->it_value
, target_addr
+
7412 offsetof(struct target_itimerspec
,
7414 return -TARGET_EFAULT
;
7421 #if defined(TARGET_NR_timer_settime64) || \
7422 (defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD))
7423 static inline abi_long
target_to_host_itimerspec64(struct itimerspec
*host_its
,
7424 abi_ulong target_addr
)
7426 if (target_to_host_timespec64(&host_its
->it_interval
, target_addr
+
7427 offsetof(struct target__kernel_itimerspec
,
7429 target_to_host_timespec64(&host_its
->it_value
, target_addr
+
7430 offsetof(struct target__kernel_itimerspec
,
7432 return -TARGET_EFAULT
;
7439 #if ((defined(TARGET_NR_timerfd_gettime) || \
7440 defined(TARGET_NR_timerfd_settime)) && defined(CONFIG_TIMERFD)) || \
7441 defined(TARGET_NR_timer_gettime) || defined(TARGET_NR_timer_settime)
7442 static inline abi_long
host_to_target_itimerspec(abi_ulong target_addr
,
7443 struct itimerspec
*host_its
)
7445 if (host_to_target_timespec(target_addr
+ offsetof(struct target_itimerspec
,
7447 &host_its
->it_interval
) ||
7448 host_to_target_timespec(target_addr
+ offsetof(struct target_itimerspec
,
7450 &host_its
->it_value
)) {
7451 return -TARGET_EFAULT
;
7457 #if ((defined(TARGET_NR_timerfd_gettime64) || \
7458 defined(TARGET_NR_timerfd_settime64)) && defined(CONFIG_TIMERFD)) || \
7459 defined(TARGET_NR_timer_gettime64) || defined(TARGET_NR_timer_settime64)
7460 static inline abi_long
host_to_target_itimerspec64(abi_ulong target_addr
,
7461 struct itimerspec
*host_its
)
7463 if (host_to_target_timespec64(target_addr
+
7464 offsetof(struct target__kernel_itimerspec
,
7466 &host_its
->it_interval
) ||
7467 host_to_target_timespec64(target_addr
+
7468 offsetof(struct target__kernel_itimerspec
,
7470 &host_its
->it_value
)) {
7471 return -TARGET_EFAULT
;
7477 #if defined(TARGET_NR_adjtimex) || \
7478 (defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME))
7479 static inline abi_long
target_to_host_timex(struct timex
*host_tx
,
7480 abi_long target_addr
)
7482 struct target_timex
*target_tx
;
7484 if (!lock_user_struct(VERIFY_READ
, target_tx
, target_addr
, 1)) {
7485 return -TARGET_EFAULT
;
7488 __get_user(host_tx
->modes
, &target_tx
->modes
);
7489 __get_user(host_tx
->offset
, &target_tx
->offset
);
7490 __get_user(host_tx
->freq
, &target_tx
->freq
);
7491 __get_user(host_tx
->maxerror
, &target_tx
->maxerror
);
7492 __get_user(host_tx
->esterror
, &target_tx
->esterror
);
7493 __get_user(host_tx
->status
, &target_tx
->status
);
7494 __get_user(host_tx
->constant
, &target_tx
->constant
);
7495 __get_user(host_tx
->precision
, &target_tx
->precision
);
7496 __get_user(host_tx
->tolerance
, &target_tx
->tolerance
);
7497 __get_user(host_tx
->time
.tv_sec
, &target_tx
->time
.tv_sec
);
7498 __get_user(host_tx
->time
.tv_usec
, &target_tx
->time
.tv_usec
);
7499 __get_user(host_tx
->tick
, &target_tx
->tick
);
7500 __get_user(host_tx
->ppsfreq
, &target_tx
->ppsfreq
);
7501 __get_user(host_tx
->jitter
, &target_tx
->jitter
);
7502 __get_user(host_tx
->shift
, &target_tx
->shift
);
7503 __get_user(host_tx
->stabil
, &target_tx
->stabil
);
7504 __get_user(host_tx
->jitcnt
, &target_tx
->jitcnt
);
7505 __get_user(host_tx
->calcnt
, &target_tx
->calcnt
);
7506 __get_user(host_tx
->errcnt
, &target_tx
->errcnt
);
7507 __get_user(host_tx
->stbcnt
, &target_tx
->stbcnt
);
7508 __get_user(host_tx
->tai
, &target_tx
->tai
);
7510 unlock_user_struct(target_tx
, target_addr
, 0);
7514 static inline abi_long
host_to_target_timex(abi_long target_addr
,
7515 struct timex
*host_tx
)
7517 struct target_timex
*target_tx
;
7519 if (!lock_user_struct(VERIFY_WRITE
, target_tx
, target_addr
, 0)) {
7520 return -TARGET_EFAULT
;
7523 __put_user(host_tx
->modes
, &target_tx
->modes
);
7524 __put_user(host_tx
->offset
, &target_tx
->offset
);
7525 __put_user(host_tx
->freq
, &target_tx
->freq
);
7526 __put_user(host_tx
->maxerror
, &target_tx
->maxerror
);
7527 __put_user(host_tx
->esterror
, &target_tx
->esterror
);
7528 __put_user(host_tx
->status
, &target_tx
->status
);
7529 __put_user(host_tx
->constant
, &target_tx
->constant
);
7530 __put_user(host_tx
->precision
, &target_tx
->precision
);
7531 __put_user(host_tx
->tolerance
, &target_tx
->tolerance
);
7532 __put_user(host_tx
->time
.tv_sec
, &target_tx
->time
.tv_sec
);
7533 __put_user(host_tx
->time
.tv_usec
, &target_tx
->time
.tv_usec
);
7534 __put_user(host_tx
->tick
, &target_tx
->tick
);
7535 __put_user(host_tx
->ppsfreq
, &target_tx
->ppsfreq
);
7536 __put_user(host_tx
->jitter
, &target_tx
->jitter
);
7537 __put_user(host_tx
->shift
, &target_tx
->shift
);
7538 __put_user(host_tx
->stabil
, &target_tx
->stabil
);
7539 __put_user(host_tx
->jitcnt
, &target_tx
->jitcnt
);
7540 __put_user(host_tx
->calcnt
, &target_tx
->calcnt
);
7541 __put_user(host_tx
->errcnt
, &target_tx
->errcnt
);
7542 __put_user(host_tx
->stbcnt
, &target_tx
->stbcnt
);
7543 __put_user(host_tx
->tai
, &target_tx
->tai
);
7545 unlock_user_struct(target_tx
, target_addr
, 1);
7551 #if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
7552 static inline abi_long
target_to_host_timex64(struct timex
*host_tx
,
7553 abi_long target_addr
)
7555 struct target__kernel_timex
*target_tx
;
7557 if (copy_from_user_timeval64(&host_tx
->time
, target_addr
+
7558 offsetof(struct target__kernel_timex
,
7560 return -TARGET_EFAULT
;
7563 if (!lock_user_struct(VERIFY_READ
, target_tx
, target_addr
, 1)) {
7564 return -TARGET_EFAULT
;
7567 __get_user(host_tx
->modes
, &target_tx
->modes
);
7568 __get_user(host_tx
->offset
, &target_tx
->offset
);
7569 __get_user(host_tx
->freq
, &target_tx
->freq
);
7570 __get_user(host_tx
->maxerror
, &target_tx
->maxerror
);
7571 __get_user(host_tx
->esterror
, &target_tx
->esterror
);
7572 __get_user(host_tx
->status
, &target_tx
->status
);
7573 __get_user(host_tx
->constant
, &target_tx
->constant
);
7574 __get_user(host_tx
->precision
, &target_tx
->precision
);
7575 __get_user(host_tx
->tolerance
, &target_tx
->tolerance
);
7576 __get_user(host_tx
->tick
, &target_tx
->tick
);
7577 __get_user(host_tx
->ppsfreq
, &target_tx
->ppsfreq
);
7578 __get_user(host_tx
->jitter
, &target_tx
->jitter
);
7579 __get_user(host_tx
->shift
, &target_tx
->shift
);
7580 __get_user(host_tx
->stabil
, &target_tx
->stabil
);
7581 __get_user(host_tx
->jitcnt
, &target_tx
->jitcnt
);
7582 __get_user(host_tx
->calcnt
, &target_tx
->calcnt
);
7583 __get_user(host_tx
->errcnt
, &target_tx
->errcnt
);
7584 __get_user(host_tx
->stbcnt
, &target_tx
->stbcnt
);
7585 __get_user(host_tx
->tai
, &target_tx
->tai
);
7587 unlock_user_struct(target_tx
, target_addr
, 0);
7591 static inline abi_long
host_to_target_timex64(abi_long target_addr
,
7592 struct timex
*host_tx
)
7594 struct target__kernel_timex
*target_tx
;
7596 if (copy_to_user_timeval64(target_addr
+
7597 offsetof(struct target__kernel_timex
, time
),
7599 return -TARGET_EFAULT
;
7602 if (!lock_user_struct(VERIFY_WRITE
, target_tx
, target_addr
, 0)) {
7603 return -TARGET_EFAULT
;
7606 __put_user(host_tx
->modes
, &target_tx
->modes
);
7607 __put_user(host_tx
->offset
, &target_tx
->offset
);
7608 __put_user(host_tx
->freq
, &target_tx
->freq
);
7609 __put_user(host_tx
->maxerror
, &target_tx
->maxerror
);
7610 __put_user(host_tx
->esterror
, &target_tx
->esterror
);
7611 __put_user(host_tx
->status
, &target_tx
->status
);
7612 __put_user(host_tx
->constant
, &target_tx
->constant
);
7613 __put_user(host_tx
->precision
, &target_tx
->precision
);
7614 __put_user(host_tx
->tolerance
, &target_tx
->tolerance
);
7615 __put_user(host_tx
->tick
, &target_tx
->tick
);
7616 __put_user(host_tx
->ppsfreq
, &target_tx
->ppsfreq
);
7617 __put_user(host_tx
->jitter
, &target_tx
->jitter
);
7618 __put_user(host_tx
->shift
, &target_tx
->shift
);
7619 __put_user(host_tx
->stabil
, &target_tx
->stabil
);
7620 __put_user(host_tx
->jitcnt
, &target_tx
->jitcnt
);
7621 __put_user(host_tx
->calcnt
, &target_tx
->calcnt
);
7622 __put_user(host_tx
->errcnt
, &target_tx
->errcnt
);
7623 __put_user(host_tx
->stbcnt
, &target_tx
->stbcnt
);
7624 __put_user(host_tx
->tai
, &target_tx
->tai
);
7626 unlock_user_struct(target_tx
, target_addr
, 1);
7631 #ifndef HAVE_SIGEV_NOTIFY_THREAD_ID
7632 #define sigev_notify_thread_id _sigev_un._tid
7635 static inline abi_long
target_to_host_sigevent(struct sigevent
*host_sevp
,
7636 abi_ulong target_addr
)
7638 struct target_sigevent
*target_sevp
;
7640 if (!lock_user_struct(VERIFY_READ
, target_sevp
, target_addr
, 1)) {
7641 return -TARGET_EFAULT
;
7644 /* This union is awkward on 64 bit systems because it has a 32 bit
7645 * integer and a pointer in it; we follow the conversion approach
7646 * used for handling sigval types in signal.c so the guest should get
7647 * the correct value back even if we did a 64 bit byteswap and it's
7648 * using the 32 bit integer.
7650 host_sevp
->sigev_value
.sival_ptr
=
7651 (void *)(uintptr_t)tswapal(target_sevp
->sigev_value
.sival_ptr
);
7652 host_sevp
->sigev_signo
=
7653 target_to_host_signal(tswap32(target_sevp
->sigev_signo
));
7654 host_sevp
->sigev_notify
= tswap32(target_sevp
->sigev_notify
);
7655 host_sevp
->sigev_notify_thread_id
= tswap32(target_sevp
->_sigev_un
._tid
);
7657 unlock_user_struct(target_sevp
, target_addr
, 1);
7661 #if defined(TARGET_NR_mlockall)
7662 static inline int target_to_host_mlockall_arg(int arg
)
7666 if (arg
& TARGET_MCL_CURRENT
) {
7667 result
|= MCL_CURRENT
;
7669 if (arg
& TARGET_MCL_FUTURE
) {
7670 result
|= MCL_FUTURE
;
7673 if (arg
& TARGET_MCL_ONFAULT
) {
7674 result
|= MCL_ONFAULT
;
7682 static inline int target_to_host_msync_arg(abi_long arg
)
7684 return ((arg
& TARGET_MS_ASYNC
) ? MS_ASYNC
: 0) |
7685 ((arg
& TARGET_MS_INVALIDATE
) ? MS_INVALIDATE
: 0) |
7686 ((arg
& TARGET_MS_SYNC
) ? MS_SYNC
: 0) |
7687 (arg
& ~(TARGET_MS_ASYNC
| TARGET_MS_INVALIDATE
| TARGET_MS_SYNC
));
7690 #if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
7691 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
7692 defined(TARGET_NR_newfstatat))
7693 static inline abi_long
host_to_target_stat64(CPUArchState
*cpu_env
,
7694 abi_ulong target_addr
,
7695 struct stat
*host_st
)
7697 #if defined(TARGET_ARM) && defined(TARGET_ABI32)
7698 if (cpu_env
->eabi
) {
7699 struct target_eabi_stat64
*target_st
;
7701 if (!lock_user_struct(VERIFY_WRITE
, target_st
, target_addr
, 0))
7702 return -TARGET_EFAULT
;
7703 memset(target_st
, 0, sizeof(struct target_eabi_stat64
));
7704 __put_user(host_st
->st_dev
, &target_st
->st_dev
);
7705 __put_user(host_st
->st_ino
, &target_st
->st_ino
);
7706 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
7707 __put_user(host_st
->st_ino
, &target_st
->__st_ino
);
7709 __put_user(host_st
->st_mode
, &target_st
->st_mode
);
7710 __put_user(host_st
->st_nlink
, &target_st
->st_nlink
);
7711 __put_user(host_st
->st_uid
, &target_st
->st_uid
);
7712 __put_user(host_st
->st_gid
, &target_st
->st_gid
);
7713 __put_user(host_st
->st_rdev
, &target_st
->st_rdev
);
7714 __put_user(host_st
->st_size
, &target_st
->st_size
);
7715 __put_user(host_st
->st_blksize
, &target_st
->st_blksize
);
7716 __put_user(host_st
->st_blocks
, &target_st
->st_blocks
);
7717 __put_user(host_st
->st_atime
, &target_st
->target_st_atime
);
7718 __put_user(host_st
->st_mtime
, &target_st
->target_st_mtime
);
7719 __put_user(host_st
->st_ctime
, &target_st
->target_st_ctime
);
7720 #ifdef HAVE_STRUCT_STAT_ST_ATIM
7721 __put_user(host_st
->st_atim
.tv_nsec
, &target_st
->target_st_atime_nsec
);
7722 __put_user(host_st
->st_mtim
.tv_nsec
, &target_st
->target_st_mtime_nsec
);
7723 __put_user(host_st
->st_ctim
.tv_nsec
, &target_st
->target_st_ctime_nsec
);
7725 unlock_user_struct(target_st
, target_addr
, 1);
7729 #if defined(TARGET_HAS_STRUCT_STAT64)
7730 struct target_stat64
*target_st
;
7732 struct target_stat
*target_st
;
7735 if (!lock_user_struct(VERIFY_WRITE
, target_st
, target_addr
, 0))
7736 return -TARGET_EFAULT
;
7737 memset(target_st
, 0, sizeof(*target_st
));
7738 __put_user(host_st
->st_dev
, &target_st
->st_dev
);
7739 __put_user(host_st
->st_ino
, &target_st
->st_ino
);
7740 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
7741 __put_user(host_st
->st_ino
, &target_st
->__st_ino
);
7743 __put_user(host_st
->st_mode
, &target_st
->st_mode
);
7744 __put_user(host_st
->st_nlink
, &target_st
->st_nlink
);
7745 __put_user(host_st
->st_uid
, &target_st
->st_uid
);
7746 __put_user(host_st
->st_gid
, &target_st
->st_gid
);
7747 __put_user(host_st
->st_rdev
, &target_st
->st_rdev
);
7748 /* XXX: better use of kernel struct */
7749 __put_user(host_st
->st_size
, &target_st
->st_size
);
7750 __put_user(host_st
->st_blksize
, &target_st
->st_blksize
);
7751 __put_user(host_st
->st_blocks
, &target_st
->st_blocks
);
7752 __put_user(host_st
->st_atime
, &target_st
->target_st_atime
);
7753 __put_user(host_st
->st_mtime
, &target_st
->target_st_mtime
);
7754 __put_user(host_st
->st_ctime
, &target_st
->target_st_ctime
);
7755 #ifdef HAVE_STRUCT_STAT_ST_ATIM
7756 __put_user(host_st
->st_atim
.tv_nsec
, &target_st
->target_st_atime_nsec
);
7757 __put_user(host_st
->st_mtim
.tv_nsec
, &target_st
->target_st_mtime_nsec
);
7758 __put_user(host_st
->st_ctim
.tv_nsec
, &target_st
->target_st_ctime_nsec
);
7760 unlock_user_struct(target_st
, target_addr
, 1);
7767 #if defined(TARGET_NR_statx) && defined(__NR_statx)
7768 static inline abi_long
host_to_target_statx(struct target_statx
*host_stx
,
7769 abi_ulong target_addr
)
7771 struct target_statx
*target_stx
;
7773 if (!lock_user_struct(VERIFY_WRITE
, target_stx
, target_addr
, 0)) {
7774 return -TARGET_EFAULT
;
7776 memset(target_stx
, 0, sizeof(*target_stx
));
7778 __put_user(host_stx
->stx_mask
, &target_stx
->stx_mask
);
7779 __put_user(host_stx
->stx_blksize
, &target_stx
->stx_blksize
);
7780 __put_user(host_stx
->stx_attributes
, &target_stx
->stx_attributes
);
7781 __put_user(host_stx
->stx_nlink
, &target_stx
->stx_nlink
);
7782 __put_user(host_stx
->stx_uid
, &target_stx
->stx_uid
);
7783 __put_user(host_stx
->stx_gid
, &target_stx
->stx_gid
);
7784 __put_user(host_stx
->stx_mode
, &target_stx
->stx_mode
);
7785 __put_user(host_stx
->stx_ino
, &target_stx
->stx_ino
);
7786 __put_user(host_stx
->stx_size
, &target_stx
->stx_size
);
7787 __put_user(host_stx
->stx_blocks
, &target_stx
->stx_blocks
);
7788 __put_user(host_stx
->stx_attributes_mask
, &target_stx
->stx_attributes_mask
);
7789 __put_user(host_stx
->stx_atime
.tv_sec
, &target_stx
->stx_atime
.tv_sec
);
7790 __put_user(host_stx
->stx_atime
.tv_nsec
, &target_stx
->stx_atime
.tv_nsec
);
7791 __put_user(host_stx
->stx_btime
.tv_sec
, &target_stx
->stx_btime
.tv_sec
);
7792 __put_user(host_stx
->stx_btime
.tv_nsec
, &target_stx
->stx_btime
.tv_nsec
);
7793 __put_user(host_stx
->stx_ctime
.tv_sec
, &target_stx
->stx_ctime
.tv_sec
);
7794 __put_user(host_stx
->stx_ctime
.tv_nsec
, &target_stx
->stx_ctime
.tv_nsec
);
7795 __put_user(host_stx
->stx_mtime
.tv_sec
, &target_stx
->stx_mtime
.tv_sec
);
7796 __put_user(host_stx
->stx_mtime
.tv_nsec
, &target_stx
->stx_mtime
.tv_nsec
);
7797 __put_user(host_stx
->stx_rdev_major
, &target_stx
->stx_rdev_major
);
7798 __put_user(host_stx
->stx_rdev_minor
, &target_stx
->stx_rdev_minor
);
7799 __put_user(host_stx
->stx_dev_major
, &target_stx
->stx_dev_major
);
7800 __put_user(host_stx
->stx_dev_minor
, &target_stx
->stx_dev_minor
);
7802 unlock_user_struct(target_stx
, target_addr
, 1);
7808 static int do_sys_futex(int *uaddr
, int op
, int val
,
7809 const struct timespec
*timeout
, int *uaddr2
,
7812 #if HOST_LONG_BITS == 64
7813 #if defined(__NR_futex)
7814 /* always a 64-bit time_t, it doesn't define _time64 version */
7815 return sys_futex(uaddr
, op
, val
, timeout
, uaddr2
, val3
);
7818 #else /* HOST_LONG_BITS == 64 */
7819 #if defined(__NR_futex_time64)
7820 if (sizeof(timeout
->tv_sec
) == 8) {
7821 /* _time64 function on 32bit arch */
7822 return sys_futex_time64(uaddr
, op
, val
, timeout
, uaddr2
, val3
);
7825 #if defined(__NR_futex)
7826 /* old function on 32bit arch */
7827 return sys_futex(uaddr
, op
, val
, timeout
, uaddr2
, val3
);
7829 #endif /* HOST_LONG_BITS == 64 */
7830 g_assert_not_reached();
7833 static int do_safe_futex(int *uaddr
, int op
, int val
,
7834 const struct timespec
*timeout
, int *uaddr2
,
7837 #if HOST_LONG_BITS == 64
7838 #if defined(__NR_futex)
7839 /* always a 64-bit time_t, it doesn't define _time64 version */
7840 return get_errno(safe_futex(uaddr
, op
, val
, timeout
, uaddr2
, val3
));
7842 #else /* HOST_LONG_BITS == 64 */
7843 #if defined(__NR_futex_time64)
7844 if (sizeof(timeout
->tv_sec
) == 8) {
7845 /* _time64 function on 32bit arch */
7846 return get_errno(safe_futex_time64(uaddr
, op
, val
, timeout
, uaddr2
,
7850 #if defined(__NR_futex)
7851 /* old function on 32bit arch */
7852 return get_errno(safe_futex(uaddr
, op
, val
, timeout
, uaddr2
, val3
));
7854 #endif /* HOST_LONG_BITS == 64 */
7855 return -TARGET_ENOSYS
;
7858 /* ??? Using host futex calls even when target atomic operations
7859 are not really atomic probably breaks things. However implementing
7860 futexes locally would make futexes shared between multiple processes
7861 tricky. However they're probably useless because guest atomic
7862 operations won't work either. */
7863 #if defined(TARGET_NR_futex) || defined(TARGET_NR_futex_time64)
7864 static int do_futex(CPUState
*cpu
, bool time64
, target_ulong uaddr
,
7865 int op
, int val
, target_ulong timeout
,
7866 target_ulong uaddr2
, int val3
)
7868 struct timespec ts
, *pts
= NULL
;
7869 void *haddr2
= NULL
;
7872 /* We assume FUTEX_* constants are the same on both host and target. */
7873 #ifdef FUTEX_CMD_MASK
7874 base_op
= op
& FUTEX_CMD_MASK
;
7880 case FUTEX_WAIT_BITSET
:
7883 case FUTEX_WAIT_REQUEUE_PI
:
7885 haddr2
= g2h(cpu
, uaddr2
);
7888 case FUTEX_LOCK_PI2
:
7891 case FUTEX_WAKE_BITSET
:
7892 case FUTEX_TRYLOCK_PI
:
7893 case FUTEX_UNLOCK_PI
:
7897 val
= target_to_host_signal(val
);
7900 case FUTEX_CMP_REQUEUE
:
7901 case FUTEX_CMP_REQUEUE_PI
:
7902 val3
= tswap32(val3
);
7907 * For these, the 4th argument is not TIMEOUT, but VAL2.
7908 * But the prototype of do_safe_futex takes a pointer, so
7909 * insert casts to satisfy the compiler. We do not need
7910 * to tswap VAL2 since it's not compared to guest memory.
7912 pts
= (struct timespec
*)(uintptr_t)timeout
;
7914 haddr2
= g2h(cpu
, uaddr2
);
7917 return -TARGET_ENOSYS
;
7922 ? target_to_host_timespec64(pts
, timeout
)
7923 : target_to_host_timespec(pts
, timeout
)) {
7924 return -TARGET_EFAULT
;
7927 return do_safe_futex(g2h(cpu
, uaddr
), op
, val
, pts
, haddr2
, val3
);
7931 #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7932 static abi_long
do_name_to_handle_at(abi_long dirfd
, abi_long pathname
,
7933 abi_long handle
, abi_long mount_id
,
7936 struct file_handle
*target_fh
;
7937 struct file_handle
*fh
;
7941 unsigned int size
, total_size
;
7943 if (get_user_s32(size
, handle
)) {
7944 return -TARGET_EFAULT
;
7947 name
= lock_user_string(pathname
);
7949 return -TARGET_EFAULT
;
7952 total_size
= sizeof(struct file_handle
) + size
;
7953 target_fh
= lock_user(VERIFY_WRITE
, handle
, total_size
, 0);
7955 unlock_user(name
, pathname
, 0);
7956 return -TARGET_EFAULT
;
7959 fh
= g_malloc0(total_size
);
7960 fh
->handle_bytes
= size
;
7962 ret
= get_errno(name_to_handle_at(dirfd
, path(name
), fh
, &mid
, flags
));
7963 unlock_user(name
, pathname
, 0);
7965 /* man name_to_handle_at(2):
7966 * Other than the use of the handle_bytes field, the caller should treat
7967 * the file_handle structure as an opaque data type
7970 memcpy(target_fh
, fh
, total_size
);
7971 target_fh
->handle_bytes
= tswap32(fh
->handle_bytes
);
7972 target_fh
->handle_type
= tswap32(fh
->handle_type
);
7974 unlock_user(target_fh
, handle
, total_size
);
7976 if (put_user_s32(mid
, mount_id
)) {
7977 return -TARGET_EFAULT
;
7985 #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7986 static abi_long
do_open_by_handle_at(abi_long mount_fd
, abi_long handle
,
7989 struct file_handle
*target_fh
;
7990 struct file_handle
*fh
;
7991 unsigned int size
, total_size
;
7994 if (get_user_s32(size
, handle
)) {
7995 return -TARGET_EFAULT
;
7998 total_size
= sizeof(struct file_handle
) + size
;
7999 target_fh
= lock_user(VERIFY_READ
, handle
, total_size
, 1);
8001 return -TARGET_EFAULT
;
8004 fh
= g_memdup(target_fh
, total_size
);
8005 fh
->handle_bytes
= size
;
8006 fh
->handle_type
= tswap32(target_fh
->handle_type
);
8008 ret
= get_errno(open_by_handle_at(mount_fd
, fh
,
8009 target_to_host_bitmask(flags
, fcntl_flags_tbl
)));
8013 unlock_user(target_fh
, handle
, total_size
);
8019 #if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
8021 static abi_long
do_signalfd4(int fd
, abi_long mask
, int flags
)
8024 target_sigset_t
*target_mask
;
8028 if (flags
& ~(TARGET_O_NONBLOCK_MASK
| TARGET_O_CLOEXEC
)) {
8029 return -TARGET_EINVAL
;
8031 if (!lock_user_struct(VERIFY_READ
, target_mask
, mask
, 1)) {
8032 return -TARGET_EFAULT
;
8035 target_to_host_sigset(&host_mask
, target_mask
);
8037 host_flags
= target_to_host_bitmask(flags
, fcntl_flags_tbl
);
8039 ret
= get_errno(signalfd(fd
, &host_mask
, host_flags
));
8041 fd_trans_register(ret
, &target_signalfd_trans
);
8044 unlock_user_struct(target_mask
, mask
, 0);
8050 /* Map host to target signal numbers for the wait family of syscalls.
8051 Assume all other status bits are the same. */
8052 int host_to_target_waitstatus(int status
)
8054 if (WIFSIGNALED(status
)) {
8055 return host_to_target_signal(WTERMSIG(status
)) | (status
& ~0x7f);
8057 if (WIFSTOPPED(status
)) {
8058 return (host_to_target_signal(WSTOPSIG(status
)) << 8)
8064 static int open_self_cmdline(CPUArchState
*cpu_env
, int fd
)
8066 CPUState
*cpu
= env_cpu(cpu_env
);
8067 struct linux_binprm
*bprm
= ((TaskState
*)cpu
->opaque
)->bprm
;
8070 for (i
= 0; i
< bprm
->argc
; i
++) {
8071 size_t len
= strlen(bprm
->argv
[i
]) + 1;
8073 if (write(fd
, bprm
->argv
[i
], len
) != len
) {
8081 static void show_smaps(int fd
, unsigned long size
)
8083 unsigned long page_size_kb
= TARGET_PAGE_SIZE
>> 10;
8084 unsigned long size_kb
= size
>> 10;
8086 dprintf(fd
, "Size: %lu kB\n"
8087 "KernelPageSize: %lu kB\n"
8088 "MMUPageSize: %lu kB\n"
8092 "Shared_Clean: 0 kB\n"
8093 "Shared_Dirty: 0 kB\n"
8094 "Private_Clean: 0 kB\n"
8095 "Private_Dirty: 0 kB\n"
8096 "Referenced: 0 kB\n"
8099 "AnonHugePages: 0 kB\n"
8100 "ShmemPmdMapped: 0 kB\n"
8101 "FilePmdMapped: 0 kB\n"
8102 "Shared_Hugetlb: 0 kB\n"
8103 "Private_Hugetlb: 0 kB\n"
8107 "THPeligible: 0\n", size_kb
, page_size_kb
, page_size_kb
);
8110 static int open_self_maps_1(CPUArchState
*cpu_env
, int fd
, bool smaps
)
8112 CPUState
*cpu
= env_cpu(cpu_env
);
8113 TaskState
*ts
= cpu
->opaque
;
8114 GSList
*map_info
= read_self_maps();
8118 for (s
= map_info
; s
; s
= g_slist_next(s
)) {
8119 MapInfo
*e
= (MapInfo
*) s
->data
;
8121 if (h2g_valid(e
->start
)) {
8122 unsigned long min
= e
->start
;
8123 unsigned long max
= e
->end
;
8124 int flags
= page_get_flags(h2g(min
));
8127 max
= h2g_valid(max
- 1) ?
8128 max
: (uintptr_t) g2h_untagged(GUEST_ADDR_MAX
) + 1;
8130 if (!page_check_range(h2g(min
), max
- min
, flags
)) {
8135 if (h2g(max
) == ts
->info
->stack_limit
) {
8137 if (h2g(min
) == ts
->info
->stack_limit
) {
8144 count
= dprintf(fd
, TARGET_ABI_FMT_ptr
"-" TARGET_ABI_FMT_ptr
8145 " %c%c%c%c %08" PRIx64
" %s %"PRId64
,
8146 h2g(min
), h2g(max
- 1) + 1,
8147 (flags
& PAGE_READ
) ? 'r' : '-',
8148 (flags
& PAGE_WRITE_ORG
) ? 'w' : '-',
8149 (flags
& PAGE_EXEC
) ? 'x' : '-',
8150 e
->is_priv
? 'p' : 's',
8151 (uint64_t) e
->offset
, e
->dev
, e
->inode
);
8153 dprintf(fd
, "%*s%s\n", 73 - count
, "", path
);
8158 show_smaps(fd
, max
- min
);
8159 dprintf(fd
, "VmFlags:%s%s%s%s%s%s%s%s\n",
8160 (flags
& PAGE_READ
) ? " rd" : "",
8161 (flags
& PAGE_WRITE_ORG
) ? " wr" : "",
8162 (flags
& PAGE_EXEC
) ? " ex" : "",
8163 e
->is_priv
? "" : " sh",
8164 (flags
& PAGE_READ
) ? " mr" : "",
8165 (flags
& PAGE_WRITE_ORG
) ? " mw" : "",
8166 (flags
& PAGE_EXEC
) ? " me" : "",
8167 e
->is_priv
? "" : " ms");
8172 free_self_maps(map_info
);
8174 #ifdef TARGET_VSYSCALL_PAGE
8176 * We only support execution from the vsyscall page.
8177 * This is as if CONFIG_LEGACY_VSYSCALL_XONLY=y from v5.3.
8179 count
= dprintf(fd
, TARGET_FMT_lx
"-" TARGET_FMT_lx
8180 " --xp 00000000 00:00 0",
8181 TARGET_VSYSCALL_PAGE
, TARGET_VSYSCALL_PAGE
+ TARGET_PAGE_SIZE
);
8182 dprintf(fd
, "%*s%s\n", 73 - count
, "", "[vsyscall]");
8184 show_smaps(fd
, TARGET_PAGE_SIZE
);
8185 dprintf(fd
, "VmFlags: ex\n");
8192 static int open_self_maps(CPUArchState
*cpu_env
, int fd
)
8194 return open_self_maps_1(cpu_env
, fd
, false);
8197 static int open_self_smaps(CPUArchState
*cpu_env
, int fd
)
8199 return open_self_maps_1(cpu_env
, fd
, true);
8202 static int open_self_stat(CPUArchState
*cpu_env
, int fd
)
8204 CPUState
*cpu
= env_cpu(cpu_env
);
8205 TaskState
*ts
= cpu
->opaque
;
8206 g_autoptr(GString
) buf
= g_string_new(NULL
);
8209 for (i
= 0; i
< 44; i
++) {
8212 g_string_printf(buf
, FMT_pid
" ", getpid());
8213 } else if (i
== 1) {
8215 gchar
*bin
= g_strrstr(ts
->bprm
->argv
[0], "/");
8216 bin
= bin
? bin
+ 1 : ts
->bprm
->argv
[0];
8217 g_string_printf(buf
, "(%.15s) ", bin
);
8218 } else if (i
== 2) {
8220 g_string_assign(buf
, "R "); /* we are running right now */
8221 } else if (i
== 3) {
8223 g_string_printf(buf
, FMT_pid
" ", getppid());
8224 } else if (i
== 21) {
8226 g_string_printf(buf
, "%" PRIu64
" ", ts
->start_boottime
);
8227 } else if (i
== 27) {
8229 g_string_printf(buf
, TARGET_ABI_FMT_ld
" ", ts
->info
->start_stack
);
8231 /* for the rest, there is MasterCard */
8232 g_string_printf(buf
, "0%c", i
== 43 ? '\n' : ' ');
8235 if (write(fd
, buf
->str
, buf
->len
) != buf
->len
) {
8243 static int open_self_auxv(CPUArchState
*cpu_env
, int fd
)
8245 CPUState
*cpu
= env_cpu(cpu_env
);
8246 TaskState
*ts
= cpu
->opaque
;
8247 abi_ulong auxv
= ts
->info
->saved_auxv
;
8248 abi_ulong len
= ts
->info
->auxv_len
;
8252 * Auxiliary vector is stored in target process stack.
8253 * read in whole auxv vector and copy it to file
8255 ptr
= lock_user(VERIFY_READ
, auxv
, len
, 0);
8259 r
= write(fd
, ptr
, len
);
8266 lseek(fd
, 0, SEEK_SET
);
8267 unlock_user(ptr
, auxv
, len
);
8273 static int is_proc_myself(const char *filename
, const char *entry
)
8275 if (!strncmp(filename
, "/proc/", strlen("/proc/"))) {
8276 filename
+= strlen("/proc/");
8277 if (!strncmp(filename
, "self/", strlen("self/"))) {
8278 filename
+= strlen("self/");
8279 } else if (*filename
>= '1' && *filename
<= '9') {
8281 snprintf(myself
, sizeof(myself
), "%d/", getpid());
8282 if (!strncmp(filename
, myself
, strlen(myself
))) {
8283 filename
+= strlen(myself
);
8290 if (!strcmp(filename
, entry
)) {
8297 static void excp_dump_file(FILE *logfile
, CPUArchState
*env
,
8298 const char *fmt
, int code
)
8301 CPUState
*cs
= env_cpu(env
);
8303 fprintf(logfile
, fmt
, code
);
8304 fprintf(logfile
, "Failing executable: %s\n", exec_path
);
8305 cpu_dump_state(cs
, logfile
, 0);
8306 open_self_maps(env
, fileno(logfile
));
8310 void target_exception_dump(CPUArchState
*env
, const char *fmt
, int code
)
8312 /* dump to console */
8313 excp_dump_file(stderr
, env
, fmt
, code
);
8315 /* dump to log file */
8316 if (qemu_log_separate()) {
8317 FILE *logfile
= qemu_log_trylock();
8319 excp_dump_file(logfile
, env
, fmt
, code
);
8320 qemu_log_unlock(logfile
);
8324 #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN || \
8325 defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA) || \
8326 defined(TARGET_RISCV) || defined(TARGET_S390X)
8327 static int is_proc(const char *filename
, const char *entry
)
8329 return strcmp(filename
, entry
) == 0;
8333 #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
8334 static int open_net_route(CPUArchState
*cpu_env
, int fd
)
8341 fp
= fopen("/proc/net/route", "r");
8348 read
= getline(&line
, &len
, fp
);
8349 dprintf(fd
, "%s", line
);
8353 while ((read
= getline(&line
, &len
, fp
)) != -1) {
8355 uint32_t dest
, gw
, mask
;
8356 unsigned int flags
, refcnt
, use
, metric
, mtu
, window
, irtt
;
8359 fields
= sscanf(line
,
8360 "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
8361 iface
, &dest
, &gw
, &flags
, &refcnt
, &use
, &metric
,
8362 &mask
, &mtu
, &window
, &irtt
);
8366 dprintf(fd
, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
8367 iface
, tswap32(dest
), tswap32(gw
), flags
, refcnt
, use
,
8368 metric
, tswap32(mask
), mtu
, window
, irtt
);
8378 #if defined(TARGET_SPARC)
8379 static int open_cpuinfo(CPUArchState
*cpu_env
, int fd
)
8381 dprintf(fd
, "type\t\t: sun4u\n");
8386 #if defined(TARGET_HPPA)
8387 static int open_cpuinfo(CPUArchState
*cpu_env
, int fd
)
8391 num_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
8392 for (i
= 0; i
< num_cpus
; i
++) {
8393 dprintf(fd
, "processor\t: %d\n", i
);
8394 dprintf(fd
, "cpu family\t: PA-RISC 1.1e\n");
8395 dprintf(fd
, "cpu\t\t: PA7300LC (PCX-L2)\n");
8396 dprintf(fd
, "capabilities\t: os32\n");
8397 dprintf(fd
, "model\t\t: 9000/778/B160L - "
8398 "Merlin L2 160 QEMU (9000/778/B160L)\n\n");
8404 #if defined(TARGET_RISCV)
8405 static int open_cpuinfo(CPUArchState
*cpu_env
, int fd
)
8408 int num_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
8409 RISCVCPU
*cpu
= env_archcpu(cpu_env
);
8410 const RISCVCPUConfig
*cfg
= riscv_cpu_cfg((CPURISCVState
*) cpu_env
);
8411 char *isa_string
= riscv_isa_string(cpu
);
8415 mmu
= (cpu_env
->xl
== MXL_RV32
) ? "sv32" : "sv48";
8420 for (i
= 0; i
< num_cpus
; i
++) {
8421 dprintf(fd
, "processor\t: %d\n", i
);
8422 dprintf(fd
, "hart\t\t: %d\n", i
);
8423 dprintf(fd
, "isa\t\t: %s\n", isa_string
);
8424 dprintf(fd
, "mmu\t\t: %s\n", mmu
);
8425 dprintf(fd
, "uarch\t\t: qemu\n\n");
8433 #if defined(TARGET_S390X)
8435 * Emulate what a Linux kernel running in qemu-system-s390x -M accel=tcg would
8436 * show in /proc/cpuinfo.
8438 * Skip the following in order to match the missing support in op_ecag():
8439 * - show_cacheinfo().
8440 * - show_cpu_topology().
8443 * Use fixed values for certain fields:
8444 * - bogomips per cpu - from a qemu-system-s390x run.
8445 * - max thread id = 0, since SMT / SIGP_SET_MULTI_THREADING is not supported.
8447 * Keep the code structure close to arch/s390/kernel/processor.c.
8450 static void show_facilities(int fd
)
8452 size_t sizeof_stfl_bytes
= 2048;
8453 g_autofree
uint8_t *stfl_bytes
= g_new0(uint8_t, sizeof_stfl_bytes
);
8456 dprintf(fd
, "facilities :");
8457 s390_get_feat_block(S390_FEAT_TYPE_STFL
, stfl_bytes
);
8458 for (bit
= 0; bit
< sizeof_stfl_bytes
* 8; bit
++) {
8459 if (test_be_bit(bit
, stfl_bytes
)) {
8460 dprintf(fd
, " %d", bit
);
8466 static int cpu_ident(unsigned long n
)
8468 return deposit32(0, CPU_ID_BITS
- CPU_PHYS_ADDR_BITS
, CPU_PHYS_ADDR_BITS
,
8472 static void show_cpu_summary(CPUArchState
*cpu_env
, int fd
)
8474 S390CPUModel
*model
= env_archcpu(cpu_env
)->model
;
8475 int num_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
8476 uint32_t elf_hwcap
= get_elf_hwcap();
8477 const char *hwcap_str
;
8480 dprintf(fd
, "vendor_id : IBM/S390\n"
8481 "# processors : %i\n"
8482 "bogomips per cpu: 13370.00\n",
8484 dprintf(fd
, "max thread id : 0\n");
8485 dprintf(fd
, "features\t: ");
8486 for (i
= 0; i
< sizeof(elf_hwcap
) * 8; i
++) {
8487 if (!(elf_hwcap
& (1 << i
))) {
8490 hwcap_str
= elf_hwcap_str(i
);
8492 dprintf(fd
, "%s ", hwcap_str
);
8496 show_facilities(fd
);
8497 for (i
= 0; i
< num_cpus
; i
++) {
8498 dprintf(fd
, "processor %d: "
8500 "identification = %06X, "
8502 i
, model
->cpu_ver
, cpu_ident(i
), model
->def
->type
);
8506 static void show_cpu_ids(CPUArchState
*cpu_env
, int fd
, unsigned long n
)
8508 S390CPUModel
*model
= env_archcpu(cpu_env
)->model
;
8510 dprintf(fd
, "version : %02X\n", model
->cpu_ver
);
8511 dprintf(fd
, "identification : %06X\n", cpu_ident(n
));
8512 dprintf(fd
, "machine : %04X\n", model
->def
->type
);
8515 static void show_cpuinfo(CPUArchState
*cpu_env
, int fd
, unsigned long n
)
8517 dprintf(fd
, "\ncpu number : %ld\n", n
);
8518 show_cpu_ids(cpu_env
, fd
, n
);
8521 static int open_cpuinfo(CPUArchState
*cpu_env
, int fd
)
8523 int num_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
8526 show_cpu_summary(cpu_env
, fd
);
8527 for (i
= 0; i
< num_cpus
; i
++) {
8528 show_cpuinfo(cpu_env
, fd
, i
);
8534 #if defined(TARGET_M68K)
8535 static int open_hardware(CPUArchState
*cpu_env
, int fd
)
8537 dprintf(fd
, "Model:\t\tqemu-m68k\n");
8542 int do_guest_openat(CPUArchState
*cpu_env
, int dirfd
, const char *pathname
,
8543 int flags
, mode_t mode
, bool safe
)
8546 const char *filename
;
8547 int (*fill
)(CPUArchState
*cpu_env
, int fd
);
8548 int (*cmp
)(const char *s1
, const char *s2
);
8550 const struct fake_open
*fake_open
;
8551 static const struct fake_open fakes
[] = {
8552 { "maps", open_self_maps
, is_proc_myself
},
8553 { "smaps", open_self_smaps
, is_proc_myself
},
8554 { "stat", open_self_stat
, is_proc_myself
},
8555 { "auxv", open_self_auxv
, is_proc_myself
},
8556 { "cmdline", open_self_cmdline
, is_proc_myself
},
8557 #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
8558 { "/proc/net/route", open_net_route
, is_proc
},
8560 #if defined(TARGET_SPARC) || defined(TARGET_HPPA) || \
8561 defined(TARGET_RISCV) || defined(TARGET_S390X)
8562 { "/proc/cpuinfo", open_cpuinfo
, is_proc
},
8564 #if defined(TARGET_M68K)
8565 { "/proc/hardware", open_hardware
, is_proc
},
8567 { NULL
, NULL
, NULL
}
8570 if (is_proc_myself(pathname
, "exe")) {
8572 return safe_openat(dirfd
, exec_path
, flags
, mode
);
8574 return openat(dirfd
, exec_path
, flags
, mode
);
8578 for (fake_open
= fakes
; fake_open
->filename
; fake_open
++) {
8579 if (fake_open
->cmp(pathname
, fake_open
->filename
)) {
8584 if (fake_open
->filename
) {
8586 char filename
[PATH_MAX
];
8589 fd
= memfd_create("qemu-open", 0);
8591 if (errno
!= ENOSYS
) {
8594 /* create temporary file to map stat to */
8595 tmpdir
= getenv("TMPDIR");
8598 snprintf(filename
, sizeof(filename
), "%s/qemu-open.XXXXXX", tmpdir
);
8599 fd
= mkstemp(filename
);
8606 if ((r
= fake_open
->fill(cpu_env
, fd
))) {
8612 lseek(fd
, 0, SEEK_SET
);
8618 return safe_openat(dirfd
, path(pathname
), flags
, mode
);
8620 return openat(dirfd
, path(pathname
), flags
, mode
);
8624 ssize_t
do_guest_readlink(const char *pathname
, char *buf
, size_t bufsiz
)
8628 if (!pathname
|| !buf
) {
8634 /* Short circuit this for the magic exe check. */
8639 if (is_proc_myself((const char *)pathname
, "exe")) {
8641 * Don't worry about sign mismatch as earlier mapping
8642 * logic would have thrown a bad address error.
8644 ret
= MIN(strlen(exec_path
), bufsiz
);
8645 /* We cannot NUL terminate the string. */
8646 memcpy(buf
, exec_path
, ret
);
8648 ret
= readlink(path(pathname
), buf
, bufsiz
);
8654 static int do_execv(CPUArchState
*cpu_env
, int dirfd
,
8655 abi_long pathname
, abi_long guest_argp
,
8656 abi_long guest_envp
, int flags
, bool is_execveat
)
8659 char **argp
, **envp
;
8668 for (gp
= guest_argp
; gp
; gp
+= sizeof(abi_ulong
)) {
8669 if (get_user_ual(addr
, gp
)) {
8670 return -TARGET_EFAULT
;
8678 for (gp
= guest_envp
; gp
; gp
+= sizeof(abi_ulong
)) {
8679 if (get_user_ual(addr
, gp
)) {
8680 return -TARGET_EFAULT
;
8688 argp
= g_new0(char *, argc
+ 1);
8689 envp
= g_new0(char *, envc
+ 1);
8691 for (gp
= guest_argp
, q
= argp
; gp
; gp
+= sizeof(abi_ulong
), q
++) {
8692 if (get_user_ual(addr
, gp
)) {
8698 *q
= lock_user_string(addr
);
8705 for (gp
= guest_envp
, q
= envp
; gp
; gp
+= sizeof(abi_ulong
), q
++) {
8706 if (get_user_ual(addr
, gp
)) {
8712 *q
= lock_user_string(addr
);
8720 * Although execve() is not an interruptible syscall it is
8721 * a special case where we must use the safe_syscall wrapper:
8722 * if we allow a signal to happen before we make the host
8723 * syscall then we will 'lose' it, because at the point of
8724 * execve the process leaves QEMU's control. So we use the
8725 * safe syscall wrapper to ensure that we either take the
8726 * signal as a guest signal, or else it does not happen
8727 * before the execve completes and makes it the other
8728 * program's problem.
8730 p
= lock_user_string(pathname
);
8735 const char *exe
= p
;
8736 if (is_proc_myself(p
, "exe")) {
8740 ? safe_execveat(dirfd
, exe
, argp
, envp
, flags
)
8741 : safe_execve(exe
, argp
, envp
);
8742 ret
= get_errno(ret
);
8744 unlock_user(p
, pathname
, 0);
8749 ret
= -TARGET_EFAULT
;
8752 for (gp
= guest_argp
, q
= argp
; *q
; gp
+= sizeof(abi_ulong
), q
++) {
8753 if (get_user_ual(addr
, gp
) || !addr
) {
8756 unlock_user(*q
, addr
, 0);
8758 for (gp
= guest_envp
, q
= envp
; *q
; gp
+= sizeof(abi_ulong
), q
++) {
8759 if (get_user_ual(addr
, gp
) || !addr
) {
8762 unlock_user(*q
, addr
, 0);
8770 #define TIMER_MAGIC 0x0caf0000
8771 #define TIMER_MAGIC_MASK 0xffff0000
8773 /* Convert QEMU provided timer ID back to internal 16bit index format */
8774 static target_timer_t
get_timer_id(abi_long arg
)
8776 target_timer_t timerid
= arg
;
8778 if ((timerid
& TIMER_MAGIC_MASK
) != TIMER_MAGIC
) {
8779 return -TARGET_EINVAL
;
8784 if (timerid
>= ARRAY_SIZE(g_posix_timers
)) {
8785 return -TARGET_EINVAL
;
8791 static int target_to_host_cpu_mask(unsigned long *host_mask
,
8793 abi_ulong target_addr
,
8796 unsigned target_bits
= sizeof(abi_ulong
) * 8;
8797 unsigned host_bits
= sizeof(*host_mask
) * 8;
8798 abi_ulong
*target_mask
;
8801 assert(host_size
>= target_size
);
8803 target_mask
= lock_user(VERIFY_READ
, target_addr
, target_size
, 1);
8805 return -TARGET_EFAULT
;
8807 memset(host_mask
, 0, host_size
);
8809 for (i
= 0 ; i
< target_size
/ sizeof(abi_ulong
); i
++) {
8810 unsigned bit
= i
* target_bits
;
8813 __get_user(val
, &target_mask
[i
]);
8814 for (j
= 0; j
< target_bits
; j
++, bit
++) {
8815 if (val
& (1UL << j
)) {
8816 host_mask
[bit
/ host_bits
] |= 1UL << (bit
% host_bits
);
8821 unlock_user(target_mask
, target_addr
, 0);
8825 static int host_to_target_cpu_mask(const unsigned long *host_mask
,
8827 abi_ulong target_addr
,
8830 unsigned target_bits
= sizeof(abi_ulong
) * 8;
8831 unsigned host_bits
= sizeof(*host_mask
) * 8;
8832 abi_ulong
*target_mask
;
8835 assert(host_size
>= target_size
);
8837 target_mask
= lock_user(VERIFY_WRITE
, target_addr
, target_size
, 0);
8839 return -TARGET_EFAULT
;
8842 for (i
= 0 ; i
< target_size
/ sizeof(abi_ulong
); i
++) {
8843 unsigned bit
= i
* target_bits
;
8846 for (j
= 0; j
< target_bits
; j
++, bit
++) {
8847 if (host_mask
[bit
/ host_bits
] & (1UL << (bit
% host_bits
))) {
8851 __put_user(val
, &target_mask
[i
]);
8854 unlock_user(target_mask
, target_addr
, target_size
);
8858 #ifdef TARGET_NR_getdents
8859 static int do_getdents(abi_long dirfd
, abi_long arg2
, abi_long count
)
8861 g_autofree
void *hdirp
= NULL
;
8863 int hlen
, hoff
, toff
;
8864 int hreclen
, treclen
;
8865 off64_t prev_diroff
= 0;
8867 hdirp
= g_try_malloc(count
);
8869 return -TARGET_ENOMEM
;
8872 #ifdef EMULATE_GETDENTS_WITH_GETDENTS
8873 hlen
= sys_getdents(dirfd
, hdirp
, count
);
8875 hlen
= sys_getdents64(dirfd
, hdirp
, count
);
8878 hlen
= get_errno(hlen
);
8879 if (is_error(hlen
)) {
8883 tdirp
= lock_user(VERIFY_WRITE
, arg2
, count
, 0);
8885 return -TARGET_EFAULT
;
8888 for (hoff
= toff
= 0; hoff
< hlen
; hoff
+= hreclen
, toff
+= treclen
) {
8889 #ifdef EMULATE_GETDENTS_WITH_GETDENTS
8890 struct linux_dirent
*hde
= hdirp
+ hoff
;
8892 struct linux_dirent64
*hde
= hdirp
+ hoff
;
8894 struct target_dirent
*tde
= tdirp
+ toff
;
8898 namelen
= strlen(hde
->d_name
);
8899 hreclen
= hde
->d_reclen
;
8900 treclen
= offsetof(struct target_dirent
, d_name
) + namelen
+ 2;
8901 treclen
= QEMU_ALIGN_UP(treclen
, __alignof(struct target_dirent
));
8903 if (toff
+ treclen
> count
) {
8905 * If the host struct is smaller than the target struct, or
8906 * requires less alignment and thus packs into less space,
8907 * then the host can return more entries than we can pass
8911 toff
= -TARGET_EINVAL
; /* result buffer is too small */
8915 * Return what we have, resetting the file pointer to the
8916 * location of the first record not returned.
8918 lseek64(dirfd
, prev_diroff
, SEEK_SET
);
8922 prev_diroff
= hde
->d_off
;
8923 tde
->d_ino
= tswapal(hde
->d_ino
);
8924 tde
->d_off
= tswapal(hde
->d_off
);
8925 tde
->d_reclen
= tswap16(treclen
);
8926 memcpy(tde
->d_name
, hde
->d_name
, namelen
+ 1);
8929 * The getdents type is in what was formerly a padding byte at the
8930 * end of the structure.
8932 #ifdef EMULATE_GETDENTS_WITH_GETDENTS
8933 type
= *((uint8_t *)hde
+ hreclen
- 1);
8937 *((uint8_t *)tde
+ treclen
- 1) = type
;
8940 unlock_user(tdirp
, arg2
, toff
);
8943 #endif /* TARGET_NR_getdents */
8945 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
8946 static int do_getdents64(abi_long dirfd
, abi_long arg2
, abi_long count
)
8948 g_autofree
void *hdirp
= NULL
;
8950 int hlen
, hoff
, toff
;
8951 int hreclen
, treclen
;
8952 off64_t prev_diroff
= 0;
8954 hdirp
= g_try_malloc(count
);
8956 return -TARGET_ENOMEM
;
8959 hlen
= get_errno(sys_getdents64(dirfd
, hdirp
, count
));
8960 if (is_error(hlen
)) {
8964 tdirp
= lock_user(VERIFY_WRITE
, arg2
, count
, 0);
8966 return -TARGET_EFAULT
;
8969 for (hoff
= toff
= 0; hoff
< hlen
; hoff
+= hreclen
, toff
+= treclen
) {
8970 struct linux_dirent64
*hde
= hdirp
+ hoff
;
8971 struct target_dirent64
*tde
= tdirp
+ toff
;
8974 namelen
= strlen(hde
->d_name
) + 1;
8975 hreclen
= hde
->d_reclen
;
8976 treclen
= offsetof(struct target_dirent64
, d_name
) + namelen
;
8977 treclen
= QEMU_ALIGN_UP(treclen
, __alignof(struct target_dirent64
));
8979 if (toff
+ treclen
> count
) {
8981 * If the host struct is smaller than the target struct, or
8982 * requires less alignment and thus packs into less space,
8983 * then the host can return more entries than we can pass
8987 toff
= -TARGET_EINVAL
; /* result buffer is too small */
8991 * Return what we have, resetting the file pointer to the
8992 * location of the first record not returned.
8994 lseek64(dirfd
, prev_diroff
, SEEK_SET
);
8998 prev_diroff
= hde
->d_off
;
8999 tde
->d_ino
= tswap64(hde
->d_ino
);
9000 tde
->d_off
= tswap64(hde
->d_off
);
9001 tde
->d_reclen
= tswap16(treclen
);
9002 tde
->d_type
= hde
->d_type
;
9003 memcpy(tde
->d_name
, hde
->d_name
, namelen
);
9006 unlock_user(tdirp
, arg2
, toff
);
9009 #endif /* TARGET_NR_getdents64 */
9011 #if defined(TARGET_NR_riscv_hwprobe)
9013 #define RISCV_HWPROBE_KEY_MVENDORID 0
9014 #define RISCV_HWPROBE_KEY_MARCHID 1
9015 #define RISCV_HWPROBE_KEY_MIMPID 2
9017 #define RISCV_HWPROBE_KEY_BASE_BEHAVIOR 3
9018 #define RISCV_HWPROBE_BASE_BEHAVIOR_IMA (1 << 0)
9020 #define RISCV_HWPROBE_KEY_IMA_EXT_0 4
9021 #define RISCV_HWPROBE_IMA_FD (1 << 0)
9022 #define RISCV_HWPROBE_IMA_C (1 << 1)
9024 #define RISCV_HWPROBE_KEY_CPUPERF_0 5
9025 #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0)
9026 #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0)
9027 #define RISCV_HWPROBE_MISALIGNED_SLOW (2 << 0)
9028 #define RISCV_HWPROBE_MISALIGNED_FAST (3 << 0)
9029 #define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0)
9030 #define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0)
9032 struct riscv_hwprobe
{
9037 static void risc_hwprobe_fill_pairs(CPURISCVState
*env
,
9038 struct riscv_hwprobe
*pair
,
9041 const RISCVCPUConfig
*cfg
= riscv_cpu_cfg(env
);
9043 for (; pair_count
> 0; pair_count
--, pair
++) {
9046 __put_user(0, &pair
->value
);
9047 __get_user(key
, &pair
->key
);
9049 case RISCV_HWPROBE_KEY_MVENDORID
:
9050 __put_user(cfg
->mvendorid
, &pair
->value
);
9052 case RISCV_HWPROBE_KEY_MARCHID
:
9053 __put_user(cfg
->marchid
, &pair
->value
);
9055 case RISCV_HWPROBE_KEY_MIMPID
:
9056 __put_user(cfg
->mimpid
, &pair
->value
);
9058 case RISCV_HWPROBE_KEY_BASE_BEHAVIOR
:
9059 value
= riscv_has_ext(env
, RVI
) &&
9060 riscv_has_ext(env
, RVM
) &&
9061 riscv_has_ext(env
, RVA
) ?
9062 RISCV_HWPROBE_BASE_BEHAVIOR_IMA
: 0;
9063 __put_user(value
, &pair
->value
);
9065 case RISCV_HWPROBE_KEY_IMA_EXT_0
:
9066 value
= riscv_has_ext(env
, RVF
) &&
9067 riscv_has_ext(env
, RVD
) ?
9068 RISCV_HWPROBE_IMA_FD
: 0;
9069 value
|= riscv_has_ext(env
, RVC
) ?
9070 RISCV_HWPROBE_IMA_C
: pair
->value
;
9071 __put_user(value
, &pair
->value
);
9073 case RISCV_HWPROBE_KEY_CPUPERF_0
:
9074 __put_user(RISCV_HWPROBE_MISALIGNED_FAST
, &pair
->value
);
9077 __put_user(-1, &pair
->key
);
9083 static int cpu_set_valid(abi_long arg3
, abi_long arg4
)
9086 size_t host_mask_size
, target_mask_size
;
9087 unsigned long *host_mask
;
9090 * cpu_set_t represent CPU masks as bit masks of type unsigned long *.
9091 * arg3 contains the cpu count.
9093 tmp
= (8 * sizeof(abi_ulong
));
9094 target_mask_size
= ((arg3
+ tmp
- 1) / tmp
) * sizeof(abi_ulong
);
9095 host_mask_size
= (target_mask_size
+ (sizeof(*host_mask
) - 1)) &
9096 ~(sizeof(*host_mask
) - 1);
9098 host_mask
= alloca(host_mask_size
);
9100 ret
= target_to_host_cpu_mask(host_mask
, host_mask_size
,
9101 arg4
, target_mask_size
);
9106 for (i
= 0 ; i
< host_mask_size
/ sizeof(*host_mask
); i
++) {
9107 if (host_mask
[i
] != 0) {
9111 return -TARGET_EINVAL
;
9114 static abi_long
do_riscv_hwprobe(CPUArchState
*cpu_env
, abi_long arg1
,
9115 abi_long arg2
, abi_long arg3
,
9116 abi_long arg4
, abi_long arg5
)
9119 struct riscv_hwprobe
*host_pairs
;
9121 /* flags must be 0 */
9123 return -TARGET_EINVAL
;
9128 ret
= cpu_set_valid(arg3
, arg4
);
9132 } else if (arg4
!= 0) {
9133 return -TARGET_EINVAL
;
9141 host_pairs
= lock_user(VERIFY_WRITE
, arg1
,
9142 sizeof(*host_pairs
) * (size_t)arg2
, 0);
9143 if (host_pairs
== NULL
) {
9144 return -TARGET_EFAULT
;
9146 risc_hwprobe_fill_pairs(cpu_env
, host_pairs
, arg2
);
9147 unlock_user(host_pairs
, arg1
, sizeof(*host_pairs
) * (size_t)arg2
);
9150 #endif /* TARGET_NR_riscv_hwprobe */
9152 #if defined(TARGET_NR_pivot_root) && defined(__NR_pivot_root)
9153 _syscall2(int, pivot_root
, const char *, new_root
, const char *, put_old
)
9156 #if defined(TARGET_NR_open_tree) && defined(__NR_open_tree)
9157 #define __NR_sys_open_tree __NR_open_tree
9158 _syscall3(int, sys_open_tree
, int, __dfd
, const char *, __filename
,
9159 unsigned int, __flags
)
9162 #if defined(TARGET_NR_move_mount) && defined(__NR_move_mount)
9163 #define __NR_sys_move_mount __NR_move_mount
9164 _syscall5(int, sys_move_mount
, int, __from_dfd
, const char *, __from_pathname
,
9165 int, __to_dfd
, const char *, __to_pathname
, unsigned int, flag
)
9168 /* This is an internal helper for do_syscall so that it is easier
9169 * to have a single return point, so that actions, such as logging
9170 * of syscall results, can be performed.
9171 * All errnos that do_syscall() returns must be -TARGET_<errcode>.
9173 static abi_long
do_syscall1(CPUArchState
*cpu_env
, int num
, abi_long arg1
,
9174 abi_long arg2
, abi_long arg3
, abi_long arg4
,
9175 abi_long arg5
, abi_long arg6
, abi_long arg7
,
9178 CPUState
*cpu
= env_cpu(cpu_env
);
9180 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
9181 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
9182 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \
9183 || defined(TARGET_NR_statx)
9186 #if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
9187 || defined(TARGET_NR_fstatfs)
9193 case TARGET_NR_exit
:
9194 /* In old applications this may be used to implement _exit(2).
9195 However in threaded applications it is used for thread termination,
9196 and _exit_group is used for application termination.
9197 Do thread termination if we have more then one thread. */
9199 if (block_signals()) {
9200 return -QEMU_ERESTARTSYS
;
9203 pthread_mutex_lock(&clone_lock
);
9205 if (CPU_NEXT(first_cpu
)) {
9206 TaskState
*ts
= cpu
->opaque
;
9208 if (ts
->child_tidptr
) {
9209 put_user_u32(0, ts
->child_tidptr
);
9210 do_sys_futex(g2h(cpu
, ts
->child_tidptr
),
9211 FUTEX_WAKE
, INT_MAX
, NULL
, NULL
, 0);
9214 object_unparent(OBJECT(cpu
));
9215 object_unref(OBJECT(cpu
));
9217 * At this point the CPU should be unrealized and removed
9218 * from cpu lists. We can clean-up the rest of the thread
9219 * data without the lock held.
9222 pthread_mutex_unlock(&clone_lock
);
9226 rcu_unregister_thread();
9230 pthread_mutex_unlock(&clone_lock
);
9231 preexit_cleanup(cpu_env
, arg1
);
9233 return 0; /* avoid warning */
9234 case TARGET_NR_read
:
9235 if (arg2
== 0 && arg3
== 0) {
9236 return get_errno(safe_read(arg1
, 0, 0));
9238 if (!(p
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0)))
9239 return -TARGET_EFAULT
;
9240 ret
= get_errno(safe_read(arg1
, p
, arg3
));
9242 fd_trans_host_to_target_data(arg1
)) {
9243 ret
= fd_trans_host_to_target_data(arg1
)(p
, ret
);
9245 unlock_user(p
, arg2
, ret
);
9248 case TARGET_NR_write
:
9249 if (arg2
== 0 && arg3
== 0) {
9250 return get_errno(safe_write(arg1
, 0, 0));
9252 if (!(p
= lock_user(VERIFY_READ
, arg2
, arg3
, 1)))
9253 return -TARGET_EFAULT
;
9254 if (fd_trans_target_to_host_data(arg1
)) {
9255 void *copy
= g_malloc(arg3
);
9256 memcpy(copy
, p
, arg3
);
9257 ret
= fd_trans_target_to_host_data(arg1
)(copy
, arg3
);
9259 ret
= get_errno(safe_write(arg1
, copy
, ret
));
9263 ret
= get_errno(safe_write(arg1
, p
, arg3
));
9265 unlock_user(p
, arg2
, 0);
9268 #ifdef TARGET_NR_open
9269 case TARGET_NR_open
:
9270 if (!(p
= lock_user_string(arg1
)))
9271 return -TARGET_EFAULT
;
9272 ret
= get_errno(do_guest_openat(cpu_env
, AT_FDCWD
, p
,
9273 target_to_host_bitmask(arg2
, fcntl_flags_tbl
),
9275 fd_trans_unregister(ret
);
9276 unlock_user(p
, arg1
, 0);
9279 case TARGET_NR_openat
:
9280 if (!(p
= lock_user_string(arg2
)))
9281 return -TARGET_EFAULT
;
9282 ret
= get_errno(do_guest_openat(cpu_env
, arg1
, p
,
9283 target_to_host_bitmask(arg3
, fcntl_flags_tbl
),
9285 fd_trans_unregister(ret
);
9286 unlock_user(p
, arg2
, 0);
9288 #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
9289 case TARGET_NR_name_to_handle_at
:
9290 ret
= do_name_to_handle_at(arg1
, arg2
, arg3
, arg4
, arg5
);
9293 #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
9294 case TARGET_NR_open_by_handle_at
:
9295 ret
= do_open_by_handle_at(arg1
, arg2
, arg3
);
9296 fd_trans_unregister(ret
);
9299 #if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
9300 case TARGET_NR_pidfd_open
:
9301 return get_errno(pidfd_open(arg1
, arg2
));
9303 #if defined(__NR_pidfd_send_signal) && defined(TARGET_NR_pidfd_send_signal)
9304 case TARGET_NR_pidfd_send_signal
:
9306 siginfo_t uinfo
, *puinfo
;
9309 p
= lock_user(VERIFY_READ
, arg3
, sizeof(target_siginfo_t
), 1);
9311 return -TARGET_EFAULT
;
9313 target_to_host_siginfo(&uinfo
, p
);
9314 unlock_user(p
, arg3
, 0);
9319 ret
= get_errno(pidfd_send_signal(arg1
, target_to_host_signal(arg2
),
9324 #if defined(__NR_pidfd_getfd) && defined(TARGET_NR_pidfd_getfd)
9325 case TARGET_NR_pidfd_getfd
:
9326 return get_errno(pidfd_getfd(arg1
, arg2
, arg3
));
9328 case TARGET_NR_close
:
9329 fd_trans_unregister(arg1
);
9330 return get_errno(close(arg1
));
9331 #if defined(__NR_close_range) && defined(TARGET_NR_close_range)
9332 case TARGET_NR_close_range
:
9333 ret
= get_errno(sys_close_range(arg1
, arg2
, arg3
));
9334 if (ret
== 0 && !(arg3
& CLOSE_RANGE_CLOEXEC
)) {
9336 maxfd
= MIN(arg2
, target_fd_max
);
9337 for (fd
= arg1
; fd
< maxfd
; fd
++) {
9338 fd_trans_unregister(fd
);
9345 return do_brk(arg1
);
9346 #ifdef TARGET_NR_fork
9347 case TARGET_NR_fork
:
9348 return get_errno(do_fork(cpu_env
, TARGET_SIGCHLD
, 0, 0, 0, 0));
9350 #ifdef TARGET_NR_waitpid
9351 case TARGET_NR_waitpid
:
9354 ret
= get_errno(safe_wait4(arg1
, &status
, arg3
, 0));
9355 if (!is_error(ret
) && arg2
&& ret
9356 && put_user_s32(host_to_target_waitstatus(status
), arg2
))
9357 return -TARGET_EFAULT
;
9361 #ifdef TARGET_NR_waitid
9362 case TARGET_NR_waitid
:
9366 ret
= get_errno(safe_waitid(arg1
, arg2
, &info
, arg4
, NULL
));
9367 if (!is_error(ret
) && arg3
&& info
.si_pid
!= 0) {
9368 if (!(p
= lock_user(VERIFY_WRITE
, arg3
, sizeof(target_siginfo_t
), 0)))
9369 return -TARGET_EFAULT
;
9370 host_to_target_siginfo(p
, &info
);
9371 unlock_user(p
, arg3
, sizeof(target_siginfo_t
));
9376 #ifdef TARGET_NR_creat /* not on alpha */
9377 case TARGET_NR_creat
:
9378 if (!(p
= lock_user_string(arg1
)))
9379 return -TARGET_EFAULT
;
9380 ret
= get_errno(creat(p
, arg2
));
9381 fd_trans_unregister(ret
);
9382 unlock_user(p
, arg1
, 0);
9385 #ifdef TARGET_NR_link
9386 case TARGET_NR_link
:
9389 p
= lock_user_string(arg1
);
9390 p2
= lock_user_string(arg2
);
9392 ret
= -TARGET_EFAULT
;
9394 ret
= get_errno(link(p
, p2
));
9395 unlock_user(p2
, arg2
, 0);
9396 unlock_user(p
, arg1
, 0);
9400 #if defined(TARGET_NR_linkat)
9401 case TARGET_NR_linkat
:
9405 return -TARGET_EFAULT
;
9406 p
= lock_user_string(arg2
);
9407 p2
= lock_user_string(arg4
);
9409 ret
= -TARGET_EFAULT
;
9411 ret
= get_errno(linkat(arg1
, p
, arg3
, p2
, arg5
));
9412 unlock_user(p
, arg2
, 0);
9413 unlock_user(p2
, arg4
, 0);
9417 #ifdef TARGET_NR_unlink
9418 case TARGET_NR_unlink
:
9419 if (!(p
= lock_user_string(arg1
)))
9420 return -TARGET_EFAULT
;
9421 ret
= get_errno(unlink(p
));
9422 unlock_user(p
, arg1
, 0);
9425 #if defined(TARGET_NR_unlinkat)
9426 case TARGET_NR_unlinkat
:
9427 if (!(p
= lock_user_string(arg2
)))
9428 return -TARGET_EFAULT
;
9429 ret
= get_errno(unlinkat(arg1
, p
, arg3
));
9430 unlock_user(p
, arg2
, 0);
9433 case TARGET_NR_execveat
:
9434 return do_execv(cpu_env
, arg1
, arg2
, arg3
, arg4
, arg5
, true);
9435 case TARGET_NR_execve
:
9436 return do_execv(cpu_env
, AT_FDCWD
, arg1
, arg2
, arg3
, 0, false);
9437 case TARGET_NR_chdir
:
9438 if (!(p
= lock_user_string(arg1
)))
9439 return -TARGET_EFAULT
;
9440 ret
= get_errno(chdir(p
));
9441 unlock_user(p
, arg1
, 0);
9443 #ifdef TARGET_NR_time
9444 case TARGET_NR_time
:
9447 ret
= get_errno(time(&host_time
));
9450 && put_user_sal(host_time
, arg1
))
9451 return -TARGET_EFAULT
;
9455 #ifdef TARGET_NR_mknod
9456 case TARGET_NR_mknod
:
9457 if (!(p
= lock_user_string(arg1
)))
9458 return -TARGET_EFAULT
;
9459 ret
= get_errno(mknod(p
, arg2
, arg3
));
9460 unlock_user(p
, arg1
, 0);
9463 #if defined(TARGET_NR_mknodat)
9464 case TARGET_NR_mknodat
:
9465 if (!(p
= lock_user_string(arg2
)))
9466 return -TARGET_EFAULT
;
9467 ret
= get_errno(mknodat(arg1
, p
, arg3
, arg4
));
9468 unlock_user(p
, arg2
, 0);
9471 #ifdef TARGET_NR_chmod
9472 case TARGET_NR_chmod
:
9473 if (!(p
= lock_user_string(arg1
)))
9474 return -TARGET_EFAULT
;
9475 ret
= get_errno(chmod(p
, arg2
));
9476 unlock_user(p
, arg1
, 0);
9479 #ifdef TARGET_NR_lseek
9480 case TARGET_NR_lseek
:
9481 return get_errno(lseek(arg1
, arg2
, arg3
));
9483 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
9484 /* Alpha specific */
9485 case TARGET_NR_getxpid
:
9486 cpu_env
->ir
[IR_A4
] = getppid();
9487 return get_errno(getpid());
9489 #ifdef TARGET_NR_getpid
9490 case TARGET_NR_getpid
:
9491 return get_errno(getpid());
9493 case TARGET_NR_mount
:
9495 /* need to look at the data field */
9499 p
= lock_user_string(arg1
);
9501 return -TARGET_EFAULT
;
9507 p2
= lock_user_string(arg2
);
9510 unlock_user(p
, arg1
, 0);
9512 return -TARGET_EFAULT
;
9516 p3
= lock_user_string(arg3
);
9519 unlock_user(p
, arg1
, 0);
9521 unlock_user(p2
, arg2
, 0);
9522 return -TARGET_EFAULT
;
9528 /* FIXME - arg5 should be locked, but it isn't clear how to
9529 * do that since it's not guaranteed to be a NULL-terminated
9533 ret
= mount(p
, p2
, p3
, (unsigned long)arg4
, NULL
);
9535 ret
= mount(p
, p2
, p3
, (unsigned long)arg4
, g2h(cpu
, arg5
));
9537 ret
= get_errno(ret
);
9540 unlock_user(p
, arg1
, 0);
9542 unlock_user(p2
, arg2
, 0);
9544 unlock_user(p3
, arg3
, 0);
9548 #if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount)
9549 #if defined(TARGET_NR_umount)
9550 case TARGET_NR_umount
:
9552 #if defined(TARGET_NR_oldumount)
9553 case TARGET_NR_oldumount
:
9555 if (!(p
= lock_user_string(arg1
)))
9556 return -TARGET_EFAULT
;
9557 ret
= get_errno(umount(p
));
9558 unlock_user(p
, arg1
, 0);
9561 #if defined(TARGET_NR_move_mount) && defined(__NR_move_mount)
9562 case TARGET_NR_move_mount
:
9566 if (!arg2
|| !arg4
) {
9567 return -TARGET_EFAULT
;
9570 p2
= lock_user_string(arg2
);
9572 return -TARGET_EFAULT
;
9575 p4
= lock_user_string(arg4
);
9577 unlock_user(p2
, arg2
, 0);
9578 return -TARGET_EFAULT
;
9580 ret
= get_errno(sys_move_mount(arg1
, p2
, arg3
, p4
, arg5
));
9582 unlock_user(p2
, arg2
, 0);
9583 unlock_user(p4
, arg4
, 0);
9588 #if defined(TARGET_NR_open_tree) && defined(__NR_open_tree)
9589 case TARGET_NR_open_tree
:
9595 return -TARGET_EFAULT
;
9598 p2
= lock_user_string(arg2
);
9600 return -TARGET_EFAULT
;
9603 host_flags
= arg3
& ~TARGET_O_CLOEXEC
;
9604 if (arg3
& TARGET_O_CLOEXEC
) {
9605 host_flags
|= O_CLOEXEC
;
9608 ret
= get_errno(sys_open_tree(arg1
, p2
, host_flags
));
9610 unlock_user(p2
, arg2
, 0);
9615 #ifdef TARGET_NR_stime /* not on alpha */
9616 case TARGET_NR_stime
:
9620 if (get_user_sal(ts
.tv_sec
, arg1
)) {
9621 return -TARGET_EFAULT
;
9623 return get_errno(clock_settime(CLOCK_REALTIME
, &ts
));
9626 #ifdef TARGET_NR_alarm /* not on alpha */
9627 case TARGET_NR_alarm
:
9630 #ifdef TARGET_NR_pause /* not on alpha */
9631 case TARGET_NR_pause
:
9632 if (!block_signals()) {
9633 sigsuspend(&((TaskState
*)cpu
->opaque
)->signal_mask
);
9635 return -TARGET_EINTR
;
9637 #ifdef TARGET_NR_utime
9638 case TARGET_NR_utime
:
9640 struct utimbuf tbuf
, *host_tbuf
;
9641 struct target_utimbuf
*target_tbuf
;
9643 if (!lock_user_struct(VERIFY_READ
, target_tbuf
, arg2
, 1))
9644 return -TARGET_EFAULT
;
9645 tbuf
.actime
= tswapal(target_tbuf
->actime
);
9646 tbuf
.modtime
= tswapal(target_tbuf
->modtime
);
9647 unlock_user_struct(target_tbuf
, arg2
, 0);
9652 if (!(p
= lock_user_string(arg1
)))
9653 return -TARGET_EFAULT
;
9654 ret
= get_errno(utime(p
, host_tbuf
));
9655 unlock_user(p
, arg1
, 0);
9659 #ifdef TARGET_NR_utimes
9660 case TARGET_NR_utimes
:
9662 struct timeval
*tvp
, tv
[2];
9664 if (copy_from_user_timeval(&tv
[0], arg2
)
9665 || copy_from_user_timeval(&tv
[1],
9666 arg2
+ sizeof(struct target_timeval
)))
9667 return -TARGET_EFAULT
;
9672 if (!(p
= lock_user_string(arg1
)))
9673 return -TARGET_EFAULT
;
9674 ret
= get_errno(utimes(p
, tvp
));
9675 unlock_user(p
, arg1
, 0);
9679 #if defined(TARGET_NR_futimesat)
9680 case TARGET_NR_futimesat
:
9682 struct timeval
*tvp
, tv
[2];
9684 if (copy_from_user_timeval(&tv
[0], arg3
)
9685 || copy_from_user_timeval(&tv
[1],
9686 arg3
+ sizeof(struct target_timeval
)))
9687 return -TARGET_EFAULT
;
9692 if (!(p
= lock_user_string(arg2
))) {
9693 return -TARGET_EFAULT
;
9695 ret
= get_errno(futimesat(arg1
, path(p
), tvp
));
9696 unlock_user(p
, arg2
, 0);
9700 #ifdef TARGET_NR_access
9701 case TARGET_NR_access
:
9702 if (!(p
= lock_user_string(arg1
))) {
9703 return -TARGET_EFAULT
;
9705 ret
= get_errno(access(path(p
), arg2
));
9706 unlock_user(p
, arg1
, 0);
9709 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
9710 case TARGET_NR_faccessat
:
9711 if (!(p
= lock_user_string(arg2
))) {
9712 return -TARGET_EFAULT
;
9714 ret
= get_errno(faccessat(arg1
, p
, arg3
, 0));
9715 unlock_user(p
, arg2
, 0);
9718 #if defined(TARGET_NR_faccessat2)
9719 case TARGET_NR_faccessat2
:
9720 if (!(p
= lock_user_string(arg2
))) {
9721 return -TARGET_EFAULT
;
9723 ret
= get_errno(faccessat(arg1
, p
, arg3
, arg4
));
9724 unlock_user(p
, arg2
, 0);
9727 #ifdef TARGET_NR_nice /* not on alpha */
9728 case TARGET_NR_nice
:
9729 return get_errno(nice(arg1
));
9731 case TARGET_NR_sync
:
9734 #if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
9735 case TARGET_NR_syncfs
:
9736 return get_errno(syncfs(arg1
));
9738 case TARGET_NR_kill
:
9739 return get_errno(safe_kill(arg1
, target_to_host_signal(arg2
)));
9740 #ifdef TARGET_NR_rename
9741 case TARGET_NR_rename
:
9744 p
= lock_user_string(arg1
);
9745 p2
= lock_user_string(arg2
);
9747 ret
= -TARGET_EFAULT
;
9749 ret
= get_errno(rename(p
, p2
));
9750 unlock_user(p2
, arg2
, 0);
9751 unlock_user(p
, arg1
, 0);
9755 #if defined(TARGET_NR_renameat)
9756 case TARGET_NR_renameat
:
9759 p
= lock_user_string(arg2
);
9760 p2
= lock_user_string(arg4
);
9762 ret
= -TARGET_EFAULT
;
9764 ret
= get_errno(renameat(arg1
, p
, arg3
, p2
));
9765 unlock_user(p2
, arg4
, 0);
9766 unlock_user(p
, arg2
, 0);
9770 #if defined(TARGET_NR_renameat2)
9771 case TARGET_NR_renameat2
:
9774 p
= lock_user_string(arg2
);
9775 p2
= lock_user_string(arg4
);
9777 ret
= -TARGET_EFAULT
;
9779 ret
= get_errno(sys_renameat2(arg1
, p
, arg3
, p2
, arg5
));
9781 unlock_user(p2
, arg4
, 0);
9782 unlock_user(p
, arg2
, 0);
9786 #ifdef TARGET_NR_mkdir
9787 case TARGET_NR_mkdir
:
9788 if (!(p
= lock_user_string(arg1
)))
9789 return -TARGET_EFAULT
;
9790 ret
= get_errno(mkdir(p
, arg2
));
9791 unlock_user(p
, arg1
, 0);
9794 #if defined(TARGET_NR_mkdirat)
9795 case TARGET_NR_mkdirat
:
9796 if (!(p
= lock_user_string(arg2
)))
9797 return -TARGET_EFAULT
;
9798 ret
= get_errno(mkdirat(arg1
, p
, arg3
));
9799 unlock_user(p
, arg2
, 0);
9802 #ifdef TARGET_NR_rmdir
9803 case TARGET_NR_rmdir
:
9804 if (!(p
= lock_user_string(arg1
)))
9805 return -TARGET_EFAULT
;
9806 ret
= get_errno(rmdir(p
));
9807 unlock_user(p
, arg1
, 0);
9811 ret
= get_errno(dup(arg1
));
9813 fd_trans_dup(arg1
, ret
);
9816 #ifdef TARGET_NR_pipe
9817 case TARGET_NR_pipe
:
9818 return do_pipe(cpu_env
, arg1
, 0, 0);
9820 #ifdef TARGET_NR_pipe2
9821 case TARGET_NR_pipe2
:
9822 return do_pipe(cpu_env
, arg1
,
9823 target_to_host_bitmask(arg2
, fcntl_flags_tbl
), 1);
9825 case TARGET_NR_times
:
9827 struct target_tms
*tmsp
;
9829 ret
= get_errno(times(&tms
));
9831 tmsp
= lock_user(VERIFY_WRITE
, arg1
, sizeof(struct target_tms
), 0);
9833 return -TARGET_EFAULT
;
9834 tmsp
->tms_utime
= tswapal(host_to_target_clock_t(tms
.tms_utime
));
9835 tmsp
->tms_stime
= tswapal(host_to_target_clock_t(tms
.tms_stime
));
9836 tmsp
->tms_cutime
= tswapal(host_to_target_clock_t(tms
.tms_cutime
));
9837 tmsp
->tms_cstime
= tswapal(host_to_target_clock_t(tms
.tms_cstime
));
9840 ret
= host_to_target_clock_t(ret
);
9843 case TARGET_NR_acct
:
9845 ret
= get_errno(acct(NULL
));
9847 if (!(p
= lock_user_string(arg1
))) {
9848 return -TARGET_EFAULT
;
9850 ret
= get_errno(acct(path(p
)));
9851 unlock_user(p
, arg1
, 0);
9854 #ifdef TARGET_NR_umount2
9855 case TARGET_NR_umount2
:
9856 if (!(p
= lock_user_string(arg1
)))
9857 return -TARGET_EFAULT
;
9858 ret
= get_errno(umount2(p
, arg2
));
9859 unlock_user(p
, arg1
, 0);
9862 case TARGET_NR_ioctl
:
9863 return do_ioctl(arg1
, arg2
, arg3
);
9864 #ifdef TARGET_NR_fcntl
9865 case TARGET_NR_fcntl
:
9866 return do_fcntl(arg1
, arg2
, arg3
);
9868 case TARGET_NR_setpgid
:
9869 return get_errno(setpgid(arg1
, arg2
));
9870 case TARGET_NR_umask
:
9871 return get_errno(umask(arg1
));
9872 case TARGET_NR_chroot
:
9873 if (!(p
= lock_user_string(arg1
)))
9874 return -TARGET_EFAULT
;
9875 ret
= get_errno(chroot(p
));
9876 unlock_user(p
, arg1
, 0);
9878 #ifdef TARGET_NR_dup2
9879 case TARGET_NR_dup2
:
9880 ret
= get_errno(dup2(arg1
, arg2
));
9882 fd_trans_dup(arg1
, arg2
);
9886 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
9887 case TARGET_NR_dup3
:
9891 if ((arg3
& ~TARGET_O_CLOEXEC
) != 0) {
9894 host_flags
= target_to_host_bitmask(arg3
, fcntl_flags_tbl
);
9895 ret
= get_errno(dup3(arg1
, arg2
, host_flags
));
9897 fd_trans_dup(arg1
, arg2
);
9902 #ifdef TARGET_NR_getppid /* not on alpha */
9903 case TARGET_NR_getppid
:
9904 return get_errno(getppid());
9906 #ifdef TARGET_NR_getpgrp
9907 case TARGET_NR_getpgrp
:
9908 return get_errno(getpgrp());
9910 case TARGET_NR_setsid
:
9911 return get_errno(setsid());
9912 #ifdef TARGET_NR_sigaction
9913 case TARGET_NR_sigaction
:
9915 #if defined(TARGET_MIPS)
9916 struct target_sigaction act
, oact
, *pact
, *old_act
;
9919 if (!lock_user_struct(VERIFY_READ
, old_act
, arg2
, 1))
9920 return -TARGET_EFAULT
;
9921 act
._sa_handler
= old_act
->_sa_handler
;
9922 target_siginitset(&act
.sa_mask
, old_act
->sa_mask
.sig
[0]);
9923 act
.sa_flags
= old_act
->sa_flags
;
9924 unlock_user_struct(old_act
, arg2
, 0);
9930 ret
= get_errno(do_sigaction(arg1
, pact
, &oact
, 0));
9932 if (!is_error(ret
) && arg3
) {
9933 if (!lock_user_struct(VERIFY_WRITE
, old_act
, arg3
, 0))
9934 return -TARGET_EFAULT
;
9935 old_act
->_sa_handler
= oact
._sa_handler
;
9936 old_act
->sa_flags
= oact
.sa_flags
;
9937 old_act
->sa_mask
.sig
[0] = oact
.sa_mask
.sig
[0];
9938 old_act
->sa_mask
.sig
[1] = 0;
9939 old_act
->sa_mask
.sig
[2] = 0;
9940 old_act
->sa_mask
.sig
[3] = 0;
9941 unlock_user_struct(old_act
, arg3
, 1);
9944 struct target_old_sigaction
*old_act
;
9945 struct target_sigaction act
, oact
, *pact
;
9947 if (!lock_user_struct(VERIFY_READ
, old_act
, arg2
, 1))
9948 return -TARGET_EFAULT
;
9949 act
._sa_handler
= old_act
->_sa_handler
;
9950 target_siginitset(&act
.sa_mask
, old_act
->sa_mask
);
9951 act
.sa_flags
= old_act
->sa_flags
;
9952 #ifdef TARGET_ARCH_HAS_SA_RESTORER
9953 act
.sa_restorer
= old_act
->sa_restorer
;
9955 unlock_user_struct(old_act
, arg2
, 0);
9960 ret
= get_errno(do_sigaction(arg1
, pact
, &oact
, 0));
9961 if (!is_error(ret
) && arg3
) {
9962 if (!lock_user_struct(VERIFY_WRITE
, old_act
, arg3
, 0))
9963 return -TARGET_EFAULT
;
9964 old_act
->_sa_handler
= oact
._sa_handler
;
9965 old_act
->sa_mask
= oact
.sa_mask
.sig
[0];
9966 old_act
->sa_flags
= oact
.sa_flags
;
9967 #ifdef TARGET_ARCH_HAS_SA_RESTORER
9968 old_act
->sa_restorer
= oact
.sa_restorer
;
9970 unlock_user_struct(old_act
, arg3
, 1);
9976 case TARGET_NR_rt_sigaction
:
9979 * For Alpha and SPARC this is a 5 argument syscall, with
9980 * a 'restorer' parameter which must be copied into the
9981 * sa_restorer field of the sigaction struct.
9982 * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
9983 * and arg5 is the sigsetsize.
9985 #if defined(TARGET_ALPHA)
9986 target_ulong sigsetsize
= arg4
;
9987 target_ulong restorer
= arg5
;
9988 #elif defined(TARGET_SPARC)
9989 target_ulong restorer
= arg4
;
9990 target_ulong sigsetsize
= arg5
;
9992 target_ulong sigsetsize
= arg4
;
9993 target_ulong restorer
= 0;
9995 struct target_sigaction
*act
= NULL
;
9996 struct target_sigaction
*oact
= NULL
;
9998 if (sigsetsize
!= sizeof(target_sigset_t
)) {
9999 return -TARGET_EINVAL
;
10001 if (arg2
&& !lock_user_struct(VERIFY_READ
, act
, arg2
, 1)) {
10002 return -TARGET_EFAULT
;
10004 if (arg3
&& !lock_user_struct(VERIFY_WRITE
, oact
, arg3
, 0)) {
10005 ret
= -TARGET_EFAULT
;
10007 ret
= get_errno(do_sigaction(arg1
, act
, oact
, restorer
));
10009 unlock_user_struct(oact
, arg3
, 1);
10013 unlock_user_struct(act
, arg2
, 0);
10017 #ifdef TARGET_NR_sgetmask /* not on alpha */
10018 case TARGET_NR_sgetmask
:
10021 abi_ulong target_set
;
10022 ret
= do_sigprocmask(0, NULL
, &cur_set
);
10024 host_to_target_old_sigset(&target_set
, &cur_set
);
10030 #ifdef TARGET_NR_ssetmask /* not on alpha */
10031 case TARGET_NR_ssetmask
:
10033 sigset_t set
, oset
;
10034 abi_ulong target_set
= arg1
;
10035 target_to_host_old_sigset(&set
, &target_set
);
10036 ret
= do_sigprocmask(SIG_SETMASK
, &set
, &oset
);
10038 host_to_target_old_sigset(&target_set
, &oset
);
10044 #ifdef TARGET_NR_sigprocmask
10045 case TARGET_NR_sigprocmask
:
10047 #if defined(TARGET_ALPHA)
10048 sigset_t set
, oldset
;
10053 case TARGET_SIG_BLOCK
:
10056 case TARGET_SIG_UNBLOCK
:
10059 case TARGET_SIG_SETMASK
:
10063 return -TARGET_EINVAL
;
10066 target_to_host_old_sigset(&set
, &mask
);
10068 ret
= do_sigprocmask(how
, &set
, &oldset
);
10069 if (!is_error(ret
)) {
10070 host_to_target_old_sigset(&mask
, &oldset
);
10072 cpu_env
->ir
[IR_V0
] = 0; /* force no error */
10075 sigset_t set
, oldset
, *set_ptr
;
10079 p
= lock_user(VERIFY_READ
, arg2
, sizeof(target_sigset_t
), 1);
10081 return -TARGET_EFAULT
;
10083 target_to_host_old_sigset(&set
, p
);
10084 unlock_user(p
, arg2
, 0);
10087 case TARGET_SIG_BLOCK
:
10090 case TARGET_SIG_UNBLOCK
:
10093 case TARGET_SIG_SETMASK
:
10097 return -TARGET_EINVAL
;
10103 ret
= do_sigprocmask(how
, set_ptr
, &oldset
);
10104 if (!is_error(ret
) && arg3
) {
10105 if (!(p
= lock_user(VERIFY_WRITE
, arg3
, sizeof(target_sigset_t
), 0)))
10106 return -TARGET_EFAULT
;
10107 host_to_target_old_sigset(p
, &oldset
);
10108 unlock_user(p
, arg3
, sizeof(target_sigset_t
));
10114 case TARGET_NR_rt_sigprocmask
:
10117 sigset_t set
, oldset
, *set_ptr
;
10119 if (arg4
!= sizeof(target_sigset_t
)) {
10120 return -TARGET_EINVAL
;
10124 p
= lock_user(VERIFY_READ
, arg2
, sizeof(target_sigset_t
), 1);
10126 return -TARGET_EFAULT
;
10128 target_to_host_sigset(&set
, p
);
10129 unlock_user(p
, arg2
, 0);
10132 case TARGET_SIG_BLOCK
:
10135 case TARGET_SIG_UNBLOCK
:
10138 case TARGET_SIG_SETMASK
:
10142 return -TARGET_EINVAL
;
10148 ret
= do_sigprocmask(how
, set_ptr
, &oldset
);
10149 if (!is_error(ret
) && arg3
) {
10150 if (!(p
= lock_user(VERIFY_WRITE
, arg3
, sizeof(target_sigset_t
), 0)))
10151 return -TARGET_EFAULT
;
10152 host_to_target_sigset(p
, &oldset
);
10153 unlock_user(p
, arg3
, sizeof(target_sigset_t
));
10157 #ifdef TARGET_NR_sigpending
10158 case TARGET_NR_sigpending
:
10161 ret
= get_errno(sigpending(&set
));
10162 if (!is_error(ret
)) {
10163 if (!(p
= lock_user(VERIFY_WRITE
, arg1
, sizeof(target_sigset_t
), 0)))
10164 return -TARGET_EFAULT
;
10165 host_to_target_old_sigset(p
, &set
);
10166 unlock_user(p
, arg1
, sizeof(target_sigset_t
));
10171 case TARGET_NR_rt_sigpending
:
10175 /* Yes, this check is >, not != like most. We follow the kernel's
10176 * logic and it does it like this because it implements
10177 * NR_sigpending through the same code path, and in that case
10178 * the old_sigset_t is smaller in size.
10180 if (arg2
> sizeof(target_sigset_t
)) {
10181 return -TARGET_EINVAL
;
10184 ret
= get_errno(sigpending(&set
));
10185 if (!is_error(ret
)) {
10186 if (!(p
= lock_user(VERIFY_WRITE
, arg1
, sizeof(target_sigset_t
), 0)))
10187 return -TARGET_EFAULT
;
10188 host_to_target_sigset(p
, &set
);
10189 unlock_user(p
, arg1
, sizeof(target_sigset_t
));
10193 #ifdef TARGET_NR_sigsuspend
10194 case TARGET_NR_sigsuspend
:
10198 #if defined(TARGET_ALPHA)
10199 TaskState
*ts
= cpu
->opaque
;
10200 /* target_to_host_old_sigset will bswap back */
10201 abi_ulong mask
= tswapal(arg1
);
10202 set
= &ts
->sigsuspend_mask
;
10203 target_to_host_old_sigset(set
, &mask
);
10205 ret
= process_sigsuspend_mask(&set
, arg1
, sizeof(target_sigset_t
));
10210 ret
= get_errno(safe_rt_sigsuspend(set
, SIGSET_T_SIZE
));
10211 finish_sigsuspend_mask(ret
);
10215 case TARGET_NR_rt_sigsuspend
:
10219 ret
= process_sigsuspend_mask(&set
, arg1
, arg2
);
10223 ret
= get_errno(safe_rt_sigsuspend(set
, SIGSET_T_SIZE
));
10224 finish_sigsuspend_mask(ret
);
10227 #ifdef TARGET_NR_rt_sigtimedwait
10228 case TARGET_NR_rt_sigtimedwait
:
10231 struct timespec uts
, *puts
;
10234 if (arg4
!= sizeof(target_sigset_t
)) {
10235 return -TARGET_EINVAL
;
10238 if (!(p
= lock_user(VERIFY_READ
, arg1
, sizeof(target_sigset_t
), 1)))
10239 return -TARGET_EFAULT
;
10240 target_to_host_sigset(&set
, p
);
10241 unlock_user(p
, arg1
, 0);
10244 if (target_to_host_timespec(puts
, arg3
)) {
10245 return -TARGET_EFAULT
;
10250 ret
= get_errno(safe_rt_sigtimedwait(&set
, &uinfo
, puts
,
10252 if (!is_error(ret
)) {
10254 p
= lock_user(VERIFY_WRITE
, arg2
, sizeof(target_siginfo_t
),
10257 return -TARGET_EFAULT
;
10259 host_to_target_siginfo(p
, &uinfo
);
10260 unlock_user(p
, arg2
, sizeof(target_siginfo_t
));
10262 ret
= host_to_target_signal(ret
);
10267 #ifdef TARGET_NR_rt_sigtimedwait_time64
10268 case TARGET_NR_rt_sigtimedwait_time64
:
10271 struct timespec uts
, *puts
;
10274 if (arg4
!= sizeof(target_sigset_t
)) {
10275 return -TARGET_EINVAL
;
10278 p
= lock_user(VERIFY_READ
, arg1
, sizeof(target_sigset_t
), 1);
10280 return -TARGET_EFAULT
;
10282 target_to_host_sigset(&set
, p
);
10283 unlock_user(p
, arg1
, 0);
10286 if (target_to_host_timespec64(puts
, arg3
)) {
10287 return -TARGET_EFAULT
;
10292 ret
= get_errno(safe_rt_sigtimedwait(&set
, &uinfo
, puts
,
10294 if (!is_error(ret
)) {
10296 p
= lock_user(VERIFY_WRITE
, arg2
,
10297 sizeof(target_siginfo_t
), 0);
10299 return -TARGET_EFAULT
;
10301 host_to_target_siginfo(p
, &uinfo
);
10302 unlock_user(p
, arg2
, sizeof(target_siginfo_t
));
10304 ret
= host_to_target_signal(ret
);
10309 case TARGET_NR_rt_sigqueueinfo
:
10313 p
= lock_user(VERIFY_READ
, arg3
, sizeof(target_siginfo_t
), 1);
10315 return -TARGET_EFAULT
;
10317 target_to_host_siginfo(&uinfo
, p
);
10318 unlock_user(p
, arg3
, 0);
10319 ret
= get_errno(sys_rt_sigqueueinfo(arg1
, target_to_host_signal(arg2
), &uinfo
));
10322 case TARGET_NR_rt_tgsigqueueinfo
:
10326 p
= lock_user(VERIFY_READ
, arg4
, sizeof(target_siginfo_t
), 1);
10328 return -TARGET_EFAULT
;
10330 target_to_host_siginfo(&uinfo
, p
);
10331 unlock_user(p
, arg4
, 0);
10332 ret
= get_errno(sys_rt_tgsigqueueinfo(arg1
, arg2
, target_to_host_signal(arg3
), &uinfo
));
10335 #ifdef TARGET_NR_sigreturn
10336 case TARGET_NR_sigreturn
:
10337 if (block_signals()) {
10338 return -QEMU_ERESTARTSYS
;
10340 return do_sigreturn(cpu_env
);
10342 case TARGET_NR_rt_sigreturn
:
10343 if (block_signals()) {
10344 return -QEMU_ERESTARTSYS
;
10346 return do_rt_sigreturn(cpu_env
);
10347 case TARGET_NR_sethostname
:
10348 if (!(p
= lock_user_string(arg1
)))
10349 return -TARGET_EFAULT
;
10350 ret
= get_errno(sethostname(p
, arg2
));
10351 unlock_user(p
, arg1
, 0);
10353 #ifdef TARGET_NR_setrlimit
10354 case TARGET_NR_setrlimit
:
10356 int resource
= target_to_host_resource(arg1
);
10357 struct target_rlimit
*target_rlim
;
10358 struct rlimit rlim
;
10359 if (!lock_user_struct(VERIFY_READ
, target_rlim
, arg2
, 1))
10360 return -TARGET_EFAULT
;
10361 rlim
.rlim_cur
= target_to_host_rlim(target_rlim
->rlim_cur
);
10362 rlim
.rlim_max
= target_to_host_rlim(target_rlim
->rlim_max
);
10363 unlock_user_struct(target_rlim
, arg2
, 0);
10365 * If we just passed through resource limit settings for memory then
10366 * they would also apply to QEMU's own allocations, and QEMU will
10367 * crash or hang or die if its allocations fail. Ideally we would
10368 * track the guest allocations in QEMU and apply the limits ourselves.
10369 * For now, just tell the guest the call succeeded but don't actually
10372 if (resource
!= RLIMIT_AS
&&
10373 resource
!= RLIMIT_DATA
&&
10374 resource
!= RLIMIT_STACK
) {
10375 return get_errno(setrlimit(resource
, &rlim
));
10381 #ifdef TARGET_NR_getrlimit
10382 case TARGET_NR_getrlimit
:
10384 int resource
= target_to_host_resource(arg1
);
10385 struct target_rlimit
*target_rlim
;
10386 struct rlimit rlim
;
10388 ret
= get_errno(getrlimit(resource
, &rlim
));
10389 if (!is_error(ret
)) {
10390 if (!lock_user_struct(VERIFY_WRITE
, target_rlim
, arg2
, 0))
10391 return -TARGET_EFAULT
;
10392 target_rlim
->rlim_cur
= host_to_target_rlim(rlim
.rlim_cur
);
10393 target_rlim
->rlim_max
= host_to_target_rlim(rlim
.rlim_max
);
10394 unlock_user_struct(target_rlim
, arg2
, 1);
10399 case TARGET_NR_getrusage
:
10401 struct rusage rusage
;
10402 ret
= get_errno(getrusage(arg1
, &rusage
));
10403 if (!is_error(ret
)) {
10404 ret
= host_to_target_rusage(arg2
, &rusage
);
10408 #if defined(TARGET_NR_gettimeofday)
10409 case TARGET_NR_gettimeofday
:
10412 struct timezone tz
;
10414 ret
= get_errno(gettimeofday(&tv
, &tz
));
10415 if (!is_error(ret
)) {
10416 if (arg1
&& copy_to_user_timeval(arg1
, &tv
)) {
10417 return -TARGET_EFAULT
;
10419 if (arg2
&& copy_to_user_timezone(arg2
, &tz
)) {
10420 return -TARGET_EFAULT
;
10426 #if defined(TARGET_NR_settimeofday)
10427 case TARGET_NR_settimeofday
:
10429 struct timeval tv
, *ptv
= NULL
;
10430 struct timezone tz
, *ptz
= NULL
;
10433 if (copy_from_user_timeval(&tv
, arg1
)) {
10434 return -TARGET_EFAULT
;
10440 if (copy_from_user_timezone(&tz
, arg2
)) {
10441 return -TARGET_EFAULT
;
10446 return get_errno(settimeofday(ptv
, ptz
));
10449 #if defined(TARGET_NR_select)
10450 case TARGET_NR_select
:
10451 #if defined(TARGET_WANT_NI_OLD_SELECT)
10452 /* some architectures used to have old_select here
10453 * but now ENOSYS it.
10455 ret
= -TARGET_ENOSYS
;
10456 #elif defined(TARGET_WANT_OLD_SYS_SELECT)
10457 ret
= do_old_select(arg1
);
10459 ret
= do_select(arg1
, arg2
, arg3
, arg4
, arg5
);
10463 #ifdef TARGET_NR_pselect6
10464 case TARGET_NR_pselect6
:
10465 return do_pselect6(arg1
, arg2
, arg3
, arg4
, arg5
, arg6
, false);
10467 #ifdef TARGET_NR_pselect6_time64
10468 case TARGET_NR_pselect6_time64
:
10469 return do_pselect6(arg1
, arg2
, arg3
, arg4
, arg5
, arg6
, true);
10471 #ifdef TARGET_NR_symlink
10472 case TARGET_NR_symlink
:
10475 p
= lock_user_string(arg1
);
10476 p2
= lock_user_string(arg2
);
10478 ret
= -TARGET_EFAULT
;
10480 ret
= get_errno(symlink(p
, p2
));
10481 unlock_user(p2
, arg2
, 0);
10482 unlock_user(p
, arg1
, 0);
10486 #if defined(TARGET_NR_symlinkat)
10487 case TARGET_NR_symlinkat
:
10490 p
= lock_user_string(arg1
);
10491 p2
= lock_user_string(arg3
);
10493 ret
= -TARGET_EFAULT
;
10495 ret
= get_errno(symlinkat(p
, arg2
, p2
));
10496 unlock_user(p2
, arg3
, 0);
10497 unlock_user(p
, arg1
, 0);
10501 #ifdef TARGET_NR_readlink
10502 case TARGET_NR_readlink
:
10505 p
= lock_user_string(arg1
);
10506 p2
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0);
10507 ret
= get_errno(do_guest_readlink(p
, p2
, arg3
));
10508 unlock_user(p2
, arg2
, ret
);
10509 unlock_user(p
, arg1
, 0);
10513 #if defined(TARGET_NR_readlinkat)
10514 case TARGET_NR_readlinkat
:
10517 p
= lock_user_string(arg2
);
10518 p2
= lock_user(VERIFY_WRITE
, arg3
, arg4
, 0);
10520 ret
= -TARGET_EFAULT
;
10521 } else if (!arg4
) {
10522 /* Short circuit this for the magic exe check. */
10523 ret
= -TARGET_EINVAL
;
10524 } else if (is_proc_myself((const char *)p
, "exe")) {
10526 * Don't worry about sign mismatch as earlier mapping
10527 * logic would have thrown a bad address error.
10529 ret
= MIN(strlen(exec_path
), arg4
);
10530 /* We cannot NUL terminate the string. */
10531 memcpy(p2
, exec_path
, ret
);
10533 ret
= get_errno(readlinkat(arg1
, path(p
), p2
, arg4
));
10535 unlock_user(p2
, arg3
, ret
);
10536 unlock_user(p
, arg2
, 0);
10540 #ifdef TARGET_NR_swapon
10541 case TARGET_NR_swapon
:
10542 if (!(p
= lock_user_string(arg1
)))
10543 return -TARGET_EFAULT
;
10544 ret
= get_errno(swapon(p
, arg2
));
10545 unlock_user(p
, arg1
, 0);
10548 case TARGET_NR_reboot
:
10549 if (arg3
== LINUX_REBOOT_CMD_RESTART2
) {
10550 /* arg4 must be ignored in all other cases */
10551 p
= lock_user_string(arg4
);
10553 return -TARGET_EFAULT
;
10555 ret
= get_errno(reboot(arg1
, arg2
, arg3
, p
));
10556 unlock_user(p
, arg4
, 0);
10558 ret
= get_errno(reboot(arg1
, arg2
, arg3
, NULL
));
10561 #ifdef TARGET_NR_mmap
10562 case TARGET_NR_mmap
:
10563 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
10564 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
10565 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
10566 || defined(TARGET_S390X)
10569 abi_ulong v1
, v2
, v3
, v4
, v5
, v6
;
10570 if (!(v
= lock_user(VERIFY_READ
, arg1
, 6 * sizeof(abi_ulong
), 1)))
10571 return -TARGET_EFAULT
;
10572 v1
= tswapal(v
[0]);
10573 v2
= tswapal(v
[1]);
10574 v3
= tswapal(v
[2]);
10575 v4
= tswapal(v
[3]);
10576 v5
= tswapal(v
[4]);
10577 v6
= tswapal(v
[5]);
10578 unlock_user(v
, arg1
, 0);
10579 ret
= get_errno(target_mmap(v1
, v2
, v3
,
10580 target_to_host_bitmask(v4
, mmap_flags_tbl
),
10584 /* mmap pointers are always untagged */
10585 ret
= get_errno(target_mmap(arg1
, arg2
, arg3
,
10586 target_to_host_bitmask(arg4
, mmap_flags_tbl
),
10592 #ifdef TARGET_NR_mmap2
10593 case TARGET_NR_mmap2
:
10595 #define MMAP_SHIFT 12
10597 ret
= target_mmap(arg1
, arg2
, arg3
,
10598 target_to_host_bitmask(arg4
, mmap_flags_tbl
),
10599 arg5
, (off_t
)(abi_ulong
)arg6
<< MMAP_SHIFT
);
10600 return get_errno(ret
);
10602 case TARGET_NR_munmap
:
10603 arg1
= cpu_untagged_addr(cpu
, arg1
);
10604 return get_errno(target_munmap(arg1
, arg2
));
10605 case TARGET_NR_mprotect
:
10606 arg1
= cpu_untagged_addr(cpu
, arg1
);
10608 TaskState
*ts
= cpu
->opaque
;
10609 /* Special hack to detect libc making the stack executable. */
10610 if ((arg3
& PROT_GROWSDOWN
)
10611 && arg1
>= ts
->info
->stack_limit
10612 && arg1
<= ts
->info
->start_stack
) {
10613 arg3
&= ~PROT_GROWSDOWN
;
10614 arg2
= arg2
+ arg1
- ts
->info
->stack_limit
;
10615 arg1
= ts
->info
->stack_limit
;
10618 return get_errno(target_mprotect(arg1
, arg2
, arg3
));
10619 #ifdef TARGET_NR_mremap
10620 case TARGET_NR_mremap
:
10621 arg1
= cpu_untagged_addr(cpu
, arg1
);
10622 /* mremap new_addr (arg5) is always untagged */
10623 return get_errno(target_mremap(arg1
, arg2
, arg3
, arg4
, arg5
));
10625 /* ??? msync/mlock/munlock are broken for softmmu. */
10626 #ifdef TARGET_NR_msync
10627 case TARGET_NR_msync
:
10628 return get_errno(msync(g2h(cpu
, arg1
), arg2
,
10629 target_to_host_msync_arg(arg3
)));
10631 #ifdef TARGET_NR_mlock
10632 case TARGET_NR_mlock
:
10633 return get_errno(mlock(g2h(cpu
, arg1
), arg2
));
10635 #ifdef TARGET_NR_munlock
10636 case TARGET_NR_munlock
:
10637 return get_errno(munlock(g2h(cpu
, arg1
), arg2
));
10639 #ifdef TARGET_NR_mlockall
10640 case TARGET_NR_mlockall
:
10641 return get_errno(mlockall(target_to_host_mlockall_arg(arg1
)));
10643 #ifdef TARGET_NR_munlockall
10644 case TARGET_NR_munlockall
:
10645 return get_errno(munlockall());
10647 #ifdef TARGET_NR_truncate
10648 case TARGET_NR_truncate
:
10649 if (!(p
= lock_user_string(arg1
)))
10650 return -TARGET_EFAULT
;
10651 ret
= get_errno(truncate(p
, arg2
));
10652 unlock_user(p
, arg1
, 0);
10655 #ifdef TARGET_NR_ftruncate
10656 case TARGET_NR_ftruncate
:
10657 return get_errno(ftruncate(arg1
, arg2
));
10659 case TARGET_NR_fchmod
:
10660 return get_errno(fchmod(arg1
, arg2
));
10661 #if defined(TARGET_NR_fchmodat)
10662 case TARGET_NR_fchmodat
:
10663 if (!(p
= lock_user_string(arg2
)))
10664 return -TARGET_EFAULT
;
10665 ret
= get_errno(fchmodat(arg1
, p
, arg3
, 0));
10666 unlock_user(p
, arg2
, 0);
10669 case TARGET_NR_getpriority
:
10670 /* Note that negative values are valid for getpriority, so we must
10671 differentiate based on errno settings. */
10673 ret
= getpriority(arg1
, arg2
);
10674 if (ret
== -1 && errno
!= 0) {
10675 return -host_to_target_errno(errno
);
10677 #ifdef TARGET_ALPHA
10678 /* Return value is the unbiased priority. Signal no error. */
10679 cpu_env
->ir
[IR_V0
] = 0;
10681 /* Return value is a biased priority to avoid negative numbers. */
10685 case TARGET_NR_setpriority
:
10686 return get_errno(setpriority(arg1
, arg2
, arg3
));
10687 #ifdef TARGET_NR_statfs
10688 case TARGET_NR_statfs
:
10689 if (!(p
= lock_user_string(arg1
))) {
10690 return -TARGET_EFAULT
;
10692 ret
= get_errno(statfs(path(p
), &stfs
));
10693 unlock_user(p
, arg1
, 0);
10695 if (!is_error(ret
)) {
10696 struct target_statfs
*target_stfs
;
10698 if (!lock_user_struct(VERIFY_WRITE
, target_stfs
, arg2
, 0))
10699 return -TARGET_EFAULT
;
10700 __put_user(stfs
.f_type
, &target_stfs
->f_type
);
10701 __put_user(stfs
.f_bsize
, &target_stfs
->f_bsize
);
10702 __put_user(stfs
.f_blocks
, &target_stfs
->f_blocks
);
10703 __put_user(stfs
.f_bfree
, &target_stfs
->f_bfree
);
10704 __put_user(stfs
.f_bavail
, &target_stfs
->f_bavail
);
10705 __put_user(stfs
.f_files
, &target_stfs
->f_files
);
10706 __put_user(stfs
.f_ffree
, &target_stfs
->f_ffree
);
10707 __put_user(stfs
.f_fsid
.__val
[0], &target_stfs
->f_fsid
.val
[0]);
10708 __put_user(stfs
.f_fsid
.__val
[1], &target_stfs
->f_fsid
.val
[1]);
10709 __put_user(stfs
.f_namelen
, &target_stfs
->f_namelen
);
10710 __put_user(stfs
.f_frsize
, &target_stfs
->f_frsize
);
10711 #ifdef _STATFS_F_FLAGS
10712 __put_user(stfs
.f_flags
, &target_stfs
->f_flags
);
10714 __put_user(0, &target_stfs
->f_flags
);
10716 memset(target_stfs
->f_spare
, 0, sizeof(target_stfs
->f_spare
));
10717 unlock_user_struct(target_stfs
, arg2
, 1);
10721 #ifdef TARGET_NR_fstatfs
10722 case TARGET_NR_fstatfs
:
10723 ret
= get_errno(fstatfs(arg1
, &stfs
));
10724 goto convert_statfs
;
10726 #ifdef TARGET_NR_statfs64
10727 case TARGET_NR_statfs64
:
10728 if (!(p
= lock_user_string(arg1
))) {
10729 return -TARGET_EFAULT
;
10731 ret
= get_errno(statfs(path(p
), &stfs
));
10732 unlock_user(p
, arg1
, 0);
10734 if (!is_error(ret
)) {
10735 struct target_statfs64
*target_stfs
;
10737 if (!lock_user_struct(VERIFY_WRITE
, target_stfs
, arg3
, 0))
10738 return -TARGET_EFAULT
;
10739 __put_user(stfs
.f_type
, &target_stfs
->f_type
);
10740 __put_user(stfs
.f_bsize
, &target_stfs
->f_bsize
);
10741 __put_user(stfs
.f_blocks
, &target_stfs
->f_blocks
);
10742 __put_user(stfs
.f_bfree
, &target_stfs
->f_bfree
);
10743 __put_user(stfs
.f_bavail
, &target_stfs
->f_bavail
);
10744 __put_user(stfs
.f_files
, &target_stfs
->f_files
);
10745 __put_user(stfs
.f_ffree
, &target_stfs
->f_ffree
);
10746 __put_user(stfs
.f_fsid
.__val
[0], &target_stfs
->f_fsid
.val
[0]);
10747 __put_user(stfs
.f_fsid
.__val
[1], &target_stfs
->f_fsid
.val
[1]);
10748 __put_user(stfs
.f_namelen
, &target_stfs
->f_namelen
);
10749 __put_user(stfs
.f_frsize
, &target_stfs
->f_frsize
);
10750 #ifdef _STATFS_F_FLAGS
10751 __put_user(stfs
.f_flags
, &target_stfs
->f_flags
);
10753 __put_user(0, &target_stfs
->f_flags
);
10755 memset(target_stfs
->f_spare
, 0, sizeof(target_stfs
->f_spare
));
10756 unlock_user_struct(target_stfs
, arg3
, 1);
10759 case TARGET_NR_fstatfs64
:
10760 ret
= get_errno(fstatfs(arg1
, &stfs
));
10761 goto convert_statfs64
;
10763 #ifdef TARGET_NR_socketcall
10764 case TARGET_NR_socketcall
:
10765 return do_socketcall(arg1
, arg2
);
10767 #ifdef TARGET_NR_accept
10768 case TARGET_NR_accept
:
10769 return do_accept4(arg1
, arg2
, arg3
, 0);
10771 #ifdef TARGET_NR_accept4
10772 case TARGET_NR_accept4
:
10773 return do_accept4(arg1
, arg2
, arg3
, arg4
);
10775 #ifdef TARGET_NR_bind
10776 case TARGET_NR_bind
:
10777 return do_bind(arg1
, arg2
, arg3
);
10779 #ifdef TARGET_NR_connect
10780 case TARGET_NR_connect
:
10781 return do_connect(arg1
, arg2
, arg3
);
10783 #ifdef TARGET_NR_getpeername
10784 case TARGET_NR_getpeername
:
10785 return do_getpeername(arg1
, arg2
, arg3
);
10787 #ifdef TARGET_NR_getsockname
10788 case TARGET_NR_getsockname
:
10789 return do_getsockname(arg1
, arg2
, arg3
);
10791 #ifdef TARGET_NR_getsockopt
10792 case TARGET_NR_getsockopt
:
10793 return do_getsockopt(arg1
, arg2
, arg3
, arg4
, arg5
);
10795 #ifdef TARGET_NR_listen
10796 case TARGET_NR_listen
:
10797 return get_errno(listen(arg1
, arg2
));
10799 #ifdef TARGET_NR_recv
10800 case TARGET_NR_recv
:
10801 return do_recvfrom(arg1
, arg2
, arg3
, arg4
, 0, 0);
10803 #ifdef TARGET_NR_recvfrom
10804 case TARGET_NR_recvfrom
:
10805 return do_recvfrom(arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
10807 #ifdef TARGET_NR_recvmsg
10808 case TARGET_NR_recvmsg
:
10809 return do_sendrecvmsg(arg1
, arg2
, arg3
, 0);
10811 #ifdef TARGET_NR_send
10812 case TARGET_NR_send
:
10813 return do_sendto(arg1
, arg2
, arg3
, arg4
, 0, 0);
10815 #ifdef TARGET_NR_sendmsg
10816 case TARGET_NR_sendmsg
:
10817 return do_sendrecvmsg(arg1
, arg2
, arg3
, 1);
10819 #ifdef TARGET_NR_sendmmsg
10820 case TARGET_NR_sendmmsg
:
10821 return do_sendrecvmmsg(arg1
, arg2
, arg3
, arg4
, 1);
10823 #ifdef TARGET_NR_recvmmsg
10824 case TARGET_NR_recvmmsg
:
10825 return do_sendrecvmmsg(arg1
, arg2
, arg3
, arg4
, 0);
10827 #ifdef TARGET_NR_sendto
10828 case TARGET_NR_sendto
:
10829 return do_sendto(arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
10831 #ifdef TARGET_NR_shutdown
10832 case TARGET_NR_shutdown
:
10833 return get_errno(shutdown(arg1
, arg2
));
10835 #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
10836 case TARGET_NR_getrandom
:
10837 p
= lock_user(VERIFY_WRITE
, arg1
, arg2
, 0);
10839 return -TARGET_EFAULT
;
10841 ret
= get_errno(getrandom(p
, arg2
, arg3
));
10842 unlock_user(p
, arg1
, ret
);
10845 #ifdef TARGET_NR_socket
10846 case TARGET_NR_socket
:
10847 return do_socket(arg1
, arg2
, arg3
);
10849 #ifdef TARGET_NR_socketpair
10850 case TARGET_NR_socketpair
:
10851 return do_socketpair(arg1
, arg2
, arg3
, arg4
);
10853 #ifdef TARGET_NR_setsockopt
10854 case TARGET_NR_setsockopt
:
10855 return do_setsockopt(arg1
, arg2
, arg3
, arg4
, (socklen_t
) arg5
);
10857 #if defined(TARGET_NR_syslog)
10858 case TARGET_NR_syslog
:
10863 case TARGET_SYSLOG_ACTION_CLOSE
: /* Close log */
10864 case TARGET_SYSLOG_ACTION_OPEN
: /* Open log */
10865 case TARGET_SYSLOG_ACTION_CLEAR
: /* Clear ring buffer */
10866 case TARGET_SYSLOG_ACTION_CONSOLE_OFF
: /* Disable logging */
10867 case TARGET_SYSLOG_ACTION_CONSOLE_ON
: /* Enable logging */
10868 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL
: /* Set messages level */
10869 case TARGET_SYSLOG_ACTION_SIZE_UNREAD
: /* Number of chars */
10870 case TARGET_SYSLOG_ACTION_SIZE_BUFFER
: /* Size of the buffer */
10871 return get_errno(sys_syslog((int)arg1
, NULL
, (int)arg3
));
10872 case TARGET_SYSLOG_ACTION_READ
: /* Read from log */
10873 case TARGET_SYSLOG_ACTION_READ_CLEAR
: /* Read/clear msgs */
10874 case TARGET_SYSLOG_ACTION_READ_ALL
: /* Read last messages */
10877 return -TARGET_EINVAL
;
10882 p
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0);
10884 return -TARGET_EFAULT
;
10886 ret
= get_errno(sys_syslog((int)arg1
, p
, (int)arg3
));
10887 unlock_user(p
, arg2
, arg3
);
10891 return -TARGET_EINVAL
;
10896 case TARGET_NR_setitimer
:
10898 struct itimerval value
, ovalue
, *pvalue
;
10902 if (copy_from_user_timeval(&pvalue
->it_interval
, arg2
)
10903 || copy_from_user_timeval(&pvalue
->it_value
,
10904 arg2
+ sizeof(struct target_timeval
)))
10905 return -TARGET_EFAULT
;
10909 ret
= get_errno(setitimer(arg1
, pvalue
, &ovalue
));
10910 if (!is_error(ret
) && arg3
) {
10911 if (copy_to_user_timeval(arg3
,
10912 &ovalue
.it_interval
)
10913 || copy_to_user_timeval(arg3
+ sizeof(struct target_timeval
),
10915 return -TARGET_EFAULT
;
10919 case TARGET_NR_getitimer
:
10921 struct itimerval value
;
10923 ret
= get_errno(getitimer(arg1
, &value
));
10924 if (!is_error(ret
) && arg2
) {
10925 if (copy_to_user_timeval(arg2
,
10926 &value
.it_interval
)
10927 || copy_to_user_timeval(arg2
+ sizeof(struct target_timeval
),
10929 return -TARGET_EFAULT
;
10933 #ifdef TARGET_NR_stat
10934 case TARGET_NR_stat
:
10935 if (!(p
= lock_user_string(arg1
))) {
10936 return -TARGET_EFAULT
;
10938 ret
= get_errno(stat(path(p
), &st
));
10939 unlock_user(p
, arg1
, 0);
10942 #ifdef TARGET_NR_lstat
10943 case TARGET_NR_lstat
:
10944 if (!(p
= lock_user_string(arg1
))) {
10945 return -TARGET_EFAULT
;
10947 ret
= get_errno(lstat(path(p
), &st
));
10948 unlock_user(p
, arg1
, 0);
10951 #ifdef TARGET_NR_fstat
10952 case TARGET_NR_fstat
:
10954 ret
= get_errno(fstat(arg1
, &st
));
10955 #if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
10958 if (!is_error(ret
)) {
10959 struct target_stat
*target_st
;
10961 if (!lock_user_struct(VERIFY_WRITE
, target_st
, arg2
, 0))
10962 return -TARGET_EFAULT
;
10963 memset(target_st
, 0, sizeof(*target_st
));
10964 __put_user(st
.st_dev
, &target_st
->st_dev
);
10965 __put_user(st
.st_ino
, &target_st
->st_ino
);
10966 __put_user(st
.st_mode
, &target_st
->st_mode
);
10967 __put_user(st
.st_uid
, &target_st
->st_uid
);
10968 __put_user(st
.st_gid
, &target_st
->st_gid
);
10969 __put_user(st
.st_nlink
, &target_st
->st_nlink
);
10970 __put_user(st
.st_rdev
, &target_st
->st_rdev
);
10971 __put_user(st
.st_size
, &target_st
->st_size
);
10972 __put_user(st
.st_blksize
, &target_st
->st_blksize
);
10973 __put_user(st
.st_blocks
, &target_st
->st_blocks
);
10974 __put_user(st
.st_atime
, &target_st
->target_st_atime
);
10975 __put_user(st
.st_mtime
, &target_st
->target_st_mtime
);
10976 __put_user(st
.st_ctime
, &target_st
->target_st_ctime
);
10977 #if defined(HAVE_STRUCT_STAT_ST_ATIM) && defined(TARGET_STAT_HAVE_NSEC)
10978 __put_user(st
.st_atim
.tv_nsec
,
10979 &target_st
->target_st_atime_nsec
);
10980 __put_user(st
.st_mtim
.tv_nsec
,
10981 &target_st
->target_st_mtime_nsec
);
10982 __put_user(st
.st_ctim
.tv_nsec
,
10983 &target_st
->target_st_ctime_nsec
);
10985 unlock_user_struct(target_st
, arg2
, 1);
10990 case TARGET_NR_vhangup
:
10991 return get_errno(vhangup());
10992 #ifdef TARGET_NR_syscall
10993 case TARGET_NR_syscall
:
10994 return do_syscall(cpu_env
, arg1
& 0xffff, arg2
, arg3
, arg4
, arg5
,
10995 arg6
, arg7
, arg8
, 0);
10997 #if defined(TARGET_NR_wait4)
10998 case TARGET_NR_wait4
:
11001 abi_long status_ptr
= arg2
;
11002 struct rusage rusage
, *rusage_ptr
;
11003 abi_ulong target_rusage
= arg4
;
11004 abi_long rusage_err
;
11006 rusage_ptr
= &rusage
;
11009 ret
= get_errno(safe_wait4(arg1
, &status
, arg3
, rusage_ptr
));
11010 if (!is_error(ret
)) {
11011 if (status_ptr
&& ret
) {
11012 status
= host_to_target_waitstatus(status
);
11013 if (put_user_s32(status
, status_ptr
))
11014 return -TARGET_EFAULT
;
11016 if (target_rusage
) {
11017 rusage_err
= host_to_target_rusage(target_rusage
, &rusage
);
11026 #ifdef TARGET_NR_swapoff
11027 case TARGET_NR_swapoff
:
11028 if (!(p
= lock_user_string(arg1
)))
11029 return -TARGET_EFAULT
;
11030 ret
= get_errno(swapoff(p
));
11031 unlock_user(p
, arg1
, 0);
11034 case TARGET_NR_sysinfo
:
11036 struct target_sysinfo
*target_value
;
11037 struct sysinfo value
;
11038 ret
= get_errno(sysinfo(&value
));
11039 if (!is_error(ret
) && arg1
)
11041 if (!lock_user_struct(VERIFY_WRITE
, target_value
, arg1
, 0))
11042 return -TARGET_EFAULT
;
11043 __put_user(value
.uptime
, &target_value
->uptime
);
11044 __put_user(value
.loads
[0], &target_value
->loads
[0]);
11045 __put_user(value
.loads
[1], &target_value
->loads
[1]);
11046 __put_user(value
.loads
[2], &target_value
->loads
[2]);
11047 __put_user(value
.totalram
, &target_value
->totalram
);
11048 __put_user(value
.freeram
, &target_value
->freeram
);
11049 __put_user(value
.sharedram
, &target_value
->sharedram
);
11050 __put_user(value
.bufferram
, &target_value
->bufferram
);
11051 __put_user(value
.totalswap
, &target_value
->totalswap
);
11052 __put_user(value
.freeswap
, &target_value
->freeswap
);
11053 __put_user(value
.procs
, &target_value
->procs
);
11054 __put_user(value
.totalhigh
, &target_value
->totalhigh
);
11055 __put_user(value
.freehigh
, &target_value
->freehigh
);
11056 __put_user(value
.mem_unit
, &target_value
->mem_unit
);
11057 unlock_user_struct(target_value
, arg1
, 1);
11061 #ifdef TARGET_NR_ipc
11062 case TARGET_NR_ipc
:
11063 return do_ipc(cpu_env
, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
11065 #ifdef TARGET_NR_semget
11066 case TARGET_NR_semget
:
11067 return get_errno(semget(arg1
, arg2
, arg3
));
11069 #ifdef TARGET_NR_semop
11070 case TARGET_NR_semop
:
11071 return do_semtimedop(arg1
, arg2
, arg3
, 0, false);
11073 #ifdef TARGET_NR_semtimedop
11074 case TARGET_NR_semtimedop
:
11075 return do_semtimedop(arg1
, arg2
, arg3
, arg4
, false);
11077 #ifdef TARGET_NR_semtimedop_time64
11078 case TARGET_NR_semtimedop_time64
:
11079 return do_semtimedop(arg1
, arg2
, arg3
, arg4
, true);
11081 #ifdef TARGET_NR_semctl
11082 case TARGET_NR_semctl
:
11083 return do_semctl(arg1
, arg2
, arg3
, arg4
);
11085 #ifdef TARGET_NR_msgctl
11086 case TARGET_NR_msgctl
:
11087 return do_msgctl(arg1
, arg2
, arg3
);
11089 #ifdef TARGET_NR_msgget
11090 case TARGET_NR_msgget
:
11091 return get_errno(msgget(arg1
, arg2
));
11093 #ifdef TARGET_NR_msgrcv
11094 case TARGET_NR_msgrcv
:
11095 return do_msgrcv(arg1
, arg2
, arg3
, arg4
, arg5
);
11097 #ifdef TARGET_NR_msgsnd
11098 case TARGET_NR_msgsnd
:
11099 return do_msgsnd(arg1
, arg2
, arg3
, arg4
);
11101 #ifdef TARGET_NR_shmget
11102 case TARGET_NR_shmget
:
11103 return get_errno(shmget(arg1
, arg2
, arg3
));
11105 #ifdef TARGET_NR_shmctl
11106 case TARGET_NR_shmctl
:
11107 return do_shmctl(arg1
, arg2
, arg3
);
11109 #ifdef TARGET_NR_shmat
11110 case TARGET_NR_shmat
:
11111 return do_shmat(cpu_env
, arg1
, arg2
, arg3
);
11113 #ifdef TARGET_NR_shmdt
11114 case TARGET_NR_shmdt
:
11115 return do_shmdt(arg1
);
11117 case TARGET_NR_fsync
:
11118 return get_errno(fsync(arg1
));
11119 case TARGET_NR_clone
:
11120 /* Linux manages to have three different orderings for its
11121 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
11122 * match the kernel's CONFIG_CLONE_* settings.
11123 * Microblaze is further special in that it uses a sixth
11124 * implicit argument to clone for the TLS pointer.
11126 #if defined(TARGET_MICROBLAZE)
11127 ret
= get_errno(do_fork(cpu_env
, arg1
, arg2
, arg4
, arg6
, arg5
));
11128 #elif defined(TARGET_CLONE_BACKWARDS)
11129 ret
= get_errno(do_fork(cpu_env
, arg1
, arg2
, arg3
, arg4
, arg5
));
11130 #elif defined(TARGET_CLONE_BACKWARDS2)
11131 ret
= get_errno(do_fork(cpu_env
, arg2
, arg1
, arg3
, arg5
, arg4
));
11133 ret
= get_errno(do_fork(cpu_env
, arg1
, arg2
, arg3
, arg5
, arg4
));
11136 #ifdef __NR_exit_group
11137 /* new thread calls */
11138 case TARGET_NR_exit_group
:
11139 preexit_cleanup(cpu_env
, arg1
);
11140 return get_errno(exit_group(arg1
));
11142 case TARGET_NR_setdomainname
:
11143 if (!(p
= lock_user_string(arg1
)))
11144 return -TARGET_EFAULT
;
11145 ret
= get_errno(setdomainname(p
, arg2
));
11146 unlock_user(p
, arg1
, 0);
11148 case TARGET_NR_uname
:
11149 /* no need to transcode because we use the linux syscall */
11151 struct new_utsname
* buf
;
11153 if (!lock_user_struct(VERIFY_WRITE
, buf
, arg1
, 0))
11154 return -TARGET_EFAULT
;
11155 ret
= get_errno(sys_uname(buf
));
11156 if (!is_error(ret
)) {
11157 /* Overwrite the native machine name with whatever is being
11159 g_strlcpy(buf
->machine
, cpu_to_uname_machine(cpu_env
),
11160 sizeof(buf
->machine
));
11161 /* Allow the user to override the reported release. */
11162 if (qemu_uname_release
&& *qemu_uname_release
) {
11163 g_strlcpy(buf
->release
, qemu_uname_release
,
11164 sizeof(buf
->release
));
11167 unlock_user_struct(buf
, arg1
, 1);
11171 case TARGET_NR_modify_ldt
:
11172 return do_modify_ldt(cpu_env
, arg1
, arg2
, arg3
);
11173 #if !defined(TARGET_X86_64)
11174 case TARGET_NR_vm86
:
11175 return do_vm86(cpu_env
, arg1
, arg2
);
11178 #if defined(TARGET_NR_adjtimex)
11179 case TARGET_NR_adjtimex
:
11181 struct timex host_buf
;
11183 if (target_to_host_timex(&host_buf
, arg1
) != 0) {
11184 return -TARGET_EFAULT
;
11186 ret
= get_errno(adjtimex(&host_buf
));
11187 if (!is_error(ret
)) {
11188 if (host_to_target_timex(arg1
, &host_buf
) != 0) {
11189 return -TARGET_EFAULT
;
11195 #if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
11196 case TARGET_NR_clock_adjtime
:
11200 if (target_to_host_timex(&htx
, arg2
) != 0) {
11201 return -TARGET_EFAULT
;
11203 ret
= get_errno(clock_adjtime(arg1
, &htx
));
11204 if (!is_error(ret
) && host_to_target_timex(arg2
, &htx
)) {
11205 return -TARGET_EFAULT
;
11210 #if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
11211 case TARGET_NR_clock_adjtime64
:
11215 if (target_to_host_timex64(&htx
, arg2
) != 0) {
11216 return -TARGET_EFAULT
;
11218 ret
= get_errno(clock_adjtime(arg1
, &htx
));
11219 if (!is_error(ret
) && host_to_target_timex64(arg2
, &htx
)) {
11220 return -TARGET_EFAULT
;
11225 case TARGET_NR_getpgid
:
11226 return get_errno(getpgid(arg1
));
11227 case TARGET_NR_fchdir
:
11228 return get_errno(fchdir(arg1
));
11229 case TARGET_NR_personality
:
11230 return get_errno(personality(arg1
));
11231 #ifdef TARGET_NR__llseek /* Not on alpha */
11232 case TARGET_NR__llseek
:
11235 #if !defined(__NR_llseek)
11236 res
= lseek(arg1
, ((uint64_t)arg2
<< 32) | (abi_ulong
)arg3
, arg5
);
11238 ret
= get_errno(res
);
11243 ret
= get_errno(_llseek(arg1
, arg2
, arg3
, &res
, arg5
));
11245 if ((ret
== 0) && put_user_s64(res
, arg4
)) {
11246 return -TARGET_EFAULT
;
11251 #ifdef TARGET_NR_getdents
11252 case TARGET_NR_getdents
:
11253 return do_getdents(arg1
, arg2
, arg3
);
11254 #endif /* TARGET_NR_getdents */
11255 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
11256 case TARGET_NR_getdents64
:
11257 return do_getdents64(arg1
, arg2
, arg3
);
11258 #endif /* TARGET_NR_getdents64 */
11259 #if defined(TARGET_NR__newselect)
11260 case TARGET_NR__newselect
:
11261 return do_select(arg1
, arg2
, arg3
, arg4
, arg5
);
11263 #ifdef TARGET_NR_poll
11264 case TARGET_NR_poll
:
11265 return do_ppoll(arg1
, arg2
, arg3
, arg4
, arg5
, false, false);
11267 #ifdef TARGET_NR_ppoll
11268 case TARGET_NR_ppoll
:
11269 return do_ppoll(arg1
, arg2
, arg3
, arg4
, arg5
, true, false);
11271 #ifdef TARGET_NR_ppoll_time64
11272 case TARGET_NR_ppoll_time64
:
11273 return do_ppoll(arg1
, arg2
, arg3
, arg4
, arg5
, true, true);
11275 case TARGET_NR_flock
:
11276 /* NOTE: the flock constant seems to be the same for every
11278 return get_errno(safe_flock(arg1
, arg2
));
11279 case TARGET_NR_readv
:
11281 struct iovec
*vec
= lock_iovec(VERIFY_WRITE
, arg2
, arg3
, 0);
11283 ret
= get_errno(safe_readv(arg1
, vec
, arg3
));
11284 unlock_iovec(vec
, arg2
, arg3
, 1);
11286 ret
= -host_to_target_errno(errno
);
11290 case TARGET_NR_writev
:
11292 struct iovec
*vec
= lock_iovec(VERIFY_READ
, arg2
, arg3
, 1);
11294 ret
= get_errno(safe_writev(arg1
, vec
, arg3
));
11295 unlock_iovec(vec
, arg2
, arg3
, 0);
11297 ret
= -host_to_target_errno(errno
);
11301 #if defined(TARGET_NR_preadv)
11302 case TARGET_NR_preadv
:
11304 struct iovec
*vec
= lock_iovec(VERIFY_WRITE
, arg2
, arg3
, 0);
11306 unsigned long low
, high
;
11308 target_to_host_low_high(arg4
, arg5
, &low
, &high
);
11309 ret
= get_errno(safe_preadv(arg1
, vec
, arg3
, low
, high
));
11310 unlock_iovec(vec
, arg2
, arg3
, 1);
11312 ret
= -host_to_target_errno(errno
);
11317 #if defined(TARGET_NR_pwritev)
11318 case TARGET_NR_pwritev
:
11320 struct iovec
*vec
= lock_iovec(VERIFY_READ
, arg2
, arg3
, 1);
11322 unsigned long low
, high
;
11324 target_to_host_low_high(arg4
, arg5
, &low
, &high
);
11325 ret
= get_errno(safe_pwritev(arg1
, vec
, arg3
, low
, high
));
11326 unlock_iovec(vec
, arg2
, arg3
, 0);
11328 ret
= -host_to_target_errno(errno
);
11333 case TARGET_NR_getsid
:
11334 return get_errno(getsid(arg1
));
11335 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
11336 case TARGET_NR_fdatasync
:
11337 return get_errno(fdatasync(arg1
));
11339 case TARGET_NR_sched_getaffinity
:
11341 unsigned int mask_size
;
11342 unsigned long *mask
;
11345 * sched_getaffinity needs multiples of ulong, so need to take
11346 * care of mismatches between target ulong and host ulong sizes.
11348 if (arg2
& (sizeof(abi_ulong
) - 1)) {
11349 return -TARGET_EINVAL
;
11351 mask_size
= (arg2
+ (sizeof(*mask
) - 1)) & ~(sizeof(*mask
) - 1);
11353 mask
= alloca(mask_size
);
11354 memset(mask
, 0, mask_size
);
11355 ret
= get_errno(sys_sched_getaffinity(arg1
, mask_size
, mask
));
11357 if (!is_error(ret
)) {
11359 /* More data returned than the caller's buffer will fit.
11360 * This only happens if sizeof(abi_long) < sizeof(long)
11361 * and the caller passed us a buffer holding an odd number
11362 * of abi_longs. If the host kernel is actually using the
11363 * extra 4 bytes then fail EINVAL; otherwise we can just
11364 * ignore them and only copy the interesting part.
11366 int numcpus
= sysconf(_SC_NPROCESSORS_CONF
);
11367 if (numcpus
> arg2
* 8) {
11368 return -TARGET_EINVAL
;
11373 if (host_to_target_cpu_mask(mask
, mask_size
, arg3
, ret
)) {
11374 return -TARGET_EFAULT
;
11379 case TARGET_NR_sched_setaffinity
:
11381 unsigned int mask_size
;
11382 unsigned long *mask
;
11385 * sched_setaffinity needs multiples of ulong, so need to take
11386 * care of mismatches between target ulong and host ulong sizes.
11388 if (arg2
& (sizeof(abi_ulong
) - 1)) {
11389 return -TARGET_EINVAL
;
11391 mask_size
= (arg2
+ (sizeof(*mask
) - 1)) & ~(sizeof(*mask
) - 1);
11392 mask
= alloca(mask_size
);
11394 ret
= target_to_host_cpu_mask(mask
, mask_size
, arg3
, arg2
);
11399 return get_errno(sys_sched_setaffinity(arg1
, mask_size
, mask
));
11401 case TARGET_NR_getcpu
:
11403 unsigned cpu
, node
;
11404 ret
= get_errno(sys_getcpu(arg1
? &cpu
: NULL
,
11405 arg2
? &node
: NULL
,
11407 if (is_error(ret
)) {
11410 if (arg1
&& put_user_u32(cpu
, arg1
)) {
11411 return -TARGET_EFAULT
;
11413 if (arg2
&& put_user_u32(node
, arg2
)) {
11414 return -TARGET_EFAULT
;
11418 case TARGET_NR_sched_setparam
:
11420 struct target_sched_param
*target_schp
;
11421 struct sched_param schp
;
11424 return -TARGET_EINVAL
;
11426 if (!lock_user_struct(VERIFY_READ
, target_schp
, arg2
, 1)) {
11427 return -TARGET_EFAULT
;
11429 schp
.sched_priority
= tswap32(target_schp
->sched_priority
);
11430 unlock_user_struct(target_schp
, arg2
, 0);
11431 return get_errno(sys_sched_setparam(arg1
, &schp
));
11433 case TARGET_NR_sched_getparam
:
11435 struct target_sched_param
*target_schp
;
11436 struct sched_param schp
;
11439 return -TARGET_EINVAL
;
11441 ret
= get_errno(sys_sched_getparam(arg1
, &schp
));
11442 if (!is_error(ret
)) {
11443 if (!lock_user_struct(VERIFY_WRITE
, target_schp
, arg2
, 0)) {
11444 return -TARGET_EFAULT
;
11446 target_schp
->sched_priority
= tswap32(schp
.sched_priority
);
11447 unlock_user_struct(target_schp
, arg2
, 1);
11451 case TARGET_NR_sched_setscheduler
:
11453 struct target_sched_param
*target_schp
;
11454 struct sched_param schp
;
11456 return -TARGET_EINVAL
;
11458 if (!lock_user_struct(VERIFY_READ
, target_schp
, arg3
, 1)) {
11459 return -TARGET_EFAULT
;
11461 schp
.sched_priority
= tswap32(target_schp
->sched_priority
);
11462 unlock_user_struct(target_schp
, arg3
, 0);
11463 return get_errno(sys_sched_setscheduler(arg1
, arg2
, &schp
));
11465 case TARGET_NR_sched_getscheduler
:
11466 return get_errno(sys_sched_getscheduler(arg1
));
11467 case TARGET_NR_sched_getattr
:
11469 struct target_sched_attr
*target_scha
;
11470 struct sched_attr scha
;
11472 return -TARGET_EINVAL
;
11474 if (arg3
> sizeof(scha
)) {
11475 arg3
= sizeof(scha
);
11477 ret
= get_errno(sys_sched_getattr(arg1
, &scha
, arg3
, arg4
));
11478 if (!is_error(ret
)) {
11479 target_scha
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0);
11480 if (!target_scha
) {
11481 return -TARGET_EFAULT
;
11483 target_scha
->size
= tswap32(scha
.size
);
11484 target_scha
->sched_policy
= tswap32(scha
.sched_policy
);
11485 target_scha
->sched_flags
= tswap64(scha
.sched_flags
);
11486 target_scha
->sched_nice
= tswap32(scha
.sched_nice
);
11487 target_scha
->sched_priority
= tswap32(scha
.sched_priority
);
11488 target_scha
->sched_runtime
= tswap64(scha
.sched_runtime
);
11489 target_scha
->sched_deadline
= tswap64(scha
.sched_deadline
);
11490 target_scha
->sched_period
= tswap64(scha
.sched_period
);
11491 if (scha
.size
> offsetof(struct sched_attr
, sched_util_min
)) {
11492 target_scha
->sched_util_min
= tswap32(scha
.sched_util_min
);
11493 target_scha
->sched_util_max
= tswap32(scha
.sched_util_max
);
11495 unlock_user(target_scha
, arg2
, arg3
);
11499 case TARGET_NR_sched_setattr
:
11501 struct target_sched_attr
*target_scha
;
11502 struct sched_attr scha
;
11506 return -TARGET_EINVAL
;
11508 if (get_user_u32(size
, arg2
)) {
11509 return -TARGET_EFAULT
;
11512 size
= offsetof(struct target_sched_attr
, sched_util_min
);
11514 if (size
< offsetof(struct target_sched_attr
, sched_util_min
)) {
11515 if (put_user_u32(sizeof(struct target_sched_attr
), arg2
)) {
11516 return -TARGET_EFAULT
;
11518 return -TARGET_E2BIG
;
11521 zeroed
= check_zeroed_user(arg2
, sizeof(struct target_sched_attr
), size
);
11524 } else if (zeroed
== 0) {
11525 if (put_user_u32(sizeof(struct target_sched_attr
), arg2
)) {
11526 return -TARGET_EFAULT
;
11528 return -TARGET_E2BIG
;
11530 if (size
> sizeof(struct target_sched_attr
)) {
11531 size
= sizeof(struct target_sched_attr
);
11534 target_scha
= lock_user(VERIFY_READ
, arg2
, size
, 1);
11535 if (!target_scha
) {
11536 return -TARGET_EFAULT
;
11539 scha
.sched_policy
= tswap32(target_scha
->sched_policy
);
11540 scha
.sched_flags
= tswap64(target_scha
->sched_flags
);
11541 scha
.sched_nice
= tswap32(target_scha
->sched_nice
);
11542 scha
.sched_priority
= tswap32(target_scha
->sched_priority
);
11543 scha
.sched_runtime
= tswap64(target_scha
->sched_runtime
);
11544 scha
.sched_deadline
= tswap64(target_scha
->sched_deadline
);
11545 scha
.sched_period
= tswap64(target_scha
->sched_period
);
11546 if (size
> offsetof(struct target_sched_attr
, sched_util_min
)) {
11547 scha
.sched_util_min
= tswap32(target_scha
->sched_util_min
);
11548 scha
.sched_util_max
= tswap32(target_scha
->sched_util_max
);
11550 unlock_user(target_scha
, arg2
, 0);
11551 return get_errno(sys_sched_setattr(arg1
, &scha
, arg3
));
11553 case TARGET_NR_sched_yield
:
11554 return get_errno(sched_yield());
11555 case TARGET_NR_sched_get_priority_max
:
11556 return get_errno(sched_get_priority_max(arg1
));
11557 case TARGET_NR_sched_get_priority_min
:
11558 return get_errno(sched_get_priority_min(arg1
));
11559 #ifdef TARGET_NR_sched_rr_get_interval
11560 case TARGET_NR_sched_rr_get_interval
:
11562 struct timespec ts
;
11563 ret
= get_errno(sched_rr_get_interval(arg1
, &ts
));
11564 if (!is_error(ret
)) {
11565 ret
= host_to_target_timespec(arg2
, &ts
);
11570 #ifdef TARGET_NR_sched_rr_get_interval_time64
11571 case TARGET_NR_sched_rr_get_interval_time64
:
11573 struct timespec ts
;
11574 ret
= get_errno(sched_rr_get_interval(arg1
, &ts
));
11575 if (!is_error(ret
)) {
11576 ret
= host_to_target_timespec64(arg2
, &ts
);
11581 #if defined(TARGET_NR_nanosleep)
11582 case TARGET_NR_nanosleep
:
11584 struct timespec req
, rem
;
11585 target_to_host_timespec(&req
, arg1
);
11586 ret
= get_errno(safe_nanosleep(&req
, &rem
));
11587 if (is_error(ret
) && arg2
) {
11588 host_to_target_timespec(arg2
, &rem
);
11593 case TARGET_NR_prctl
:
11594 return do_prctl(cpu_env
, arg1
, arg2
, arg3
, arg4
, arg5
);
11596 #ifdef TARGET_NR_arch_prctl
11597 case TARGET_NR_arch_prctl
:
11598 return do_arch_prctl(cpu_env
, arg1
, arg2
);
11600 #ifdef TARGET_NR_pread64
11601 case TARGET_NR_pread64
:
11602 if (regpairs_aligned(cpu_env
, num
)) {
11606 if (arg2
== 0 && arg3
== 0) {
11607 /* Special-case NULL buffer and zero length, which should succeed */
11610 p
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0);
11612 return -TARGET_EFAULT
;
11615 ret
= get_errno(pread64(arg1
, p
, arg3
, target_offset64(arg4
, arg5
)));
11616 unlock_user(p
, arg2
, ret
);
11618 case TARGET_NR_pwrite64
:
11619 if (regpairs_aligned(cpu_env
, num
)) {
11623 if (arg2
== 0 && arg3
== 0) {
11624 /* Special-case NULL buffer and zero length, which should succeed */
11627 p
= lock_user(VERIFY_READ
, arg2
, arg3
, 1);
11629 return -TARGET_EFAULT
;
11632 ret
= get_errno(pwrite64(arg1
, p
, arg3
, target_offset64(arg4
, arg5
)));
11633 unlock_user(p
, arg2
, 0);
11636 case TARGET_NR_getcwd
:
11637 if (!(p
= lock_user(VERIFY_WRITE
, arg1
, arg2
, 0)))
11638 return -TARGET_EFAULT
;
11639 ret
= get_errno(sys_getcwd1(p
, arg2
));
11640 unlock_user(p
, arg1
, ret
);
11642 case TARGET_NR_capget
:
11643 case TARGET_NR_capset
:
11645 struct target_user_cap_header
*target_header
;
11646 struct target_user_cap_data
*target_data
= NULL
;
11647 struct __user_cap_header_struct header
;
11648 struct __user_cap_data_struct data
[2];
11649 struct __user_cap_data_struct
*dataptr
= NULL
;
11650 int i
, target_datalen
;
11651 int data_items
= 1;
11653 if (!lock_user_struct(VERIFY_WRITE
, target_header
, arg1
, 1)) {
11654 return -TARGET_EFAULT
;
11656 header
.version
= tswap32(target_header
->version
);
11657 header
.pid
= tswap32(target_header
->pid
);
11659 if (header
.version
!= _LINUX_CAPABILITY_VERSION
) {
11660 /* Version 2 and up takes pointer to two user_data structs */
11664 target_datalen
= sizeof(*target_data
) * data_items
;
11667 if (num
== TARGET_NR_capget
) {
11668 target_data
= lock_user(VERIFY_WRITE
, arg2
, target_datalen
, 0);
11670 target_data
= lock_user(VERIFY_READ
, arg2
, target_datalen
, 1);
11672 if (!target_data
) {
11673 unlock_user_struct(target_header
, arg1
, 0);
11674 return -TARGET_EFAULT
;
11677 if (num
== TARGET_NR_capset
) {
11678 for (i
= 0; i
< data_items
; i
++) {
11679 data
[i
].effective
= tswap32(target_data
[i
].effective
);
11680 data
[i
].permitted
= tswap32(target_data
[i
].permitted
);
11681 data
[i
].inheritable
= tswap32(target_data
[i
].inheritable
);
11688 if (num
== TARGET_NR_capget
) {
11689 ret
= get_errno(capget(&header
, dataptr
));
11691 ret
= get_errno(capset(&header
, dataptr
));
11694 /* The kernel always updates version for both capget and capset */
11695 target_header
->version
= tswap32(header
.version
);
11696 unlock_user_struct(target_header
, arg1
, 1);
11699 if (num
== TARGET_NR_capget
) {
11700 for (i
= 0; i
< data_items
; i
++) {
11701 target_data
[i
].effective
= tswap32(data
[i
].effective
);
11702 target_data
[i
].permitted
= tswap32(data
[i
].permitted
);
11703 target_data
[i
].inheritable
= tswap32(data
[i
].inheritable
);
11705 unlock_user(target_data
, arg2
, target_datalen
);
11707 unlock_user(target_data
, arg2
, 0);
11712 case TARGET_NR_sigaltstack
:
11713 return do_sigaltstack(arg1
, arg2
, cpu_env
);
11715 #ifdef CONFIG_SENDFILE
11716 #ifdef TARGET_NR_sendfile
11717 case TARGET_NR_sendfile
:
11719 off_t
*offp
= NULL
;
11722 ret
= get_user_sal(off
, arg3
);
11723 if (is_error(ret
)) {
11728 ret
= get_errno(sendfile(arg1
, arg2
, offp
, arg4
));
11729 if (!is_error(ret
) && arg3
) {
11730 abi_long ret2
= put_user_sal(off
, arg3
);
11731 if (is_error(ret2
)) {
11738 #ifdef TARGET_NR_sendfile64
11739 case TARGET_NR_sendfile64
:
11741 off_t
*offp
= NULL
;
11744 ret
= get_user_s64(off
, arg3
);
11745 if (is_error(ret
)) {
11750 ret
= get_errno(sendfile(arg1
, arg2
, offp
, arg4
));
11751 if (!is_error(ret
) && arg3
) {
11752 abi_long ret2
= put_user_s64(off
, arg3
);
11753 if (is_error(ret2
)) {
11761 #ifdef TARGET_NR_vfork
11762 case TARGET_NR_vfork
:
11763 return get_errno(do_fork(cpu_env
,
11764 CLONE_VFORK
| CLONE_VM
| TARGET_SIGCHLD
,
11767 #ifdef TARGET_NR_ugetrlimit
11768 case TARGET_NR_ugetrlimit
:
11770 struct rlimit rlim
;
11771 int resource
= target_to_host_resource(arg1
);
11772 ret
= get_errno(getrlimit(resource
, &rlim
));
11773 if (!is_error(ret
)) {
11774 struct target_rlimit
*target_rlim
;
11775 if (!lock_user_struct(VERIFY_WRITE
, target_rlim
, arg2
, 0))
11776 return -TARGET_EFAULT
;
11777 target_rlim
->rlim_cur
= host_to_target_rlim(rlim
.rlim_cur
);
11778 target_rlim
->rlim_max
= host_to_target_rlim(rlim
.rlim_max
);
11779 unlock_user_struct(target_rlim
, arg2
, 1);
11784 #ifdef TARGET_NR_truncate64
11785 case TARGET_NR_truncate64
:
11786 if (!(p
= lock_user_string(arg1
)))
11787 return -TARGET_EFAULT
;
11788 ret
= target_truncate64(cpu_env
, p
, arg2
, arg3
, arg4
);
11789 unlock_user(p
, arg1
, 0);
11792 #ifdef TARGET_NR_ftruncate64
11793 case TARGET_NR_ftruncate64
:
11794 return target_ftruncate64(cpu_env
, arg1
, arg2
, arg3
, arg4
);
11796 #ifdef TARGET_NR_stat64
11797 case TARGET_NR_stat64
:
11798 if (!(p
= lock_user_string(arg1
))) {
11799 return -TARGET_EFAULT
;
11801 ret
= get_errno(stat(path(p
), &st
));
11802 unlock_user(p
, arg1
, 0);
11803 if (!is_error(ret
))
11804 ret
= host_to_target_stat64(cpu_env
, arg2
, &st
);
11807 #ifdef TARGET_NR_lstat64
11808 case TARGET_NR_lstat64
:
11809 if (!(p
= lock_user_string(arg1
))) {
11810 return -TARGET_EFAULT
;
11812 ret
= get_errno(lstat(path(p
), &st
));
11813 unlock_user(p
, arg1
, 0);
11814 if (!is_error(ret
))
11815 ret
= host_to_target_stat64(cpu_env
, arg2
, &st
);
11818 #ifdef TARGET_NR_fstat64
11819 case TARGET_NR_fstat64
:
11820 ret
= get_errno(fstat(arg1
, &st
));
11821 if (!is_error(ret
))
11822 ret
= host_to_target_stat64(cpu_env
, arg2
, &st
);
11825 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
11826 #ifdef TARGET_NR_fstatat64
11827 case TARGET_NR_fstatat64
:
11829 #ifdef TARGET_NR_newfstatat
11830 case TARGET_NR_newfstatat
:
11832 if (!(p
= lock_user_string(arg2
))) {
11833 return -TARGET_EFAULT
;
11835 ret
= get_errno(fstatat(arg1
, path(p
), &st
, arg4
));
11836 unlock_user(p
, arg2
, 0);
11837 if (!is_error(ret
))
11838 ret
= host_to_target_stat64(cpu_env
, arg3
, &st
);
11841 #if defined(TARGET_NR_statx)
11842 case TARGET_NR_statx
:
11844 struct target_statx
*target_stx
;
11848 p
= lock_user_string(arg2
);
11850 return -TARGET_EFAULT
;
11852 #if defined(__NR_statx)
11855 * It is assumed that struct statx is architecture independent.
11857 struct target_statx host_stx
;
11860 ret
= get_errno(sys_statx(dirfd
, p
, flags
, mask
, &host_stx
));
11861 if (!is_error(ret
)) {
11862 if (host_to_target_statx(&host_stx
, arg5
) != 0) {
11863 unlock_user(p
, arg2
, 0);
11864 return -TARGET_EFAULT
;
11868 if (ret
!= -TARGET_ENOSYS
) {
11869 unlock_user(p
, arg2
, 0);
11874 ret
= get_errno(fstatat(dirfd
, path(p
), &st
, flags
));
11875 unlock_user(p
, arg2
, 0);
11877 if (!is_error(ret
)) {
11878 if (!lock_user_struct(VERIFY_WRITE
, target_stx
, arg5
, 0)) {
11879 return -TARGET_EFAULT
;
11881 memset(target_stx
, 0, sizeof(*target_stx
));
11882 __put_user(major(st
.st_dev
), &target_stx
->stx_dev_major
);
11883 __put_user(minor(st
.st_dev
), &target_stx
->stx_dev_minor
);
11884 __put_user(st
.st_ino
, &target_stx
->stx_ino
);
11885 __put_user(st
.st_mode
, &target_stx
->stx_mode
);
11886 __put_user(st
.st_uid
, &target_stx
->stx_uid
);
11887 __put_user(st
.st_gid
, &target_stx
->stx_gid
);
11888 __put_user(st
.st_nlink
, &target_stx
->stx_nlink
);
11889 __put_user(major(st
.st_rdev
), &target_stx
->stx_rdev_major
);
11890 __put_user(minor(st
.st_rdev
), &target_stx
->stx_rdev_minor
);
11891 __put_user(st
.st_size
, &target_stx
->stx_size
);
11892 __put_user(st
.st_blksize
, &target_stx
->stx_blksize
);
11893 __put_user(st
.st_blocks
, &target_stx
->stx_blocks
);
11894 __put_user(st
.st_atime
, &target_stx
->stx_atime
.tv_sec
);
11895 __put_user(st
.st_mtime
, &target_stx
->stx_mtime
.tv_sec
);
11896 __put_user(st
.st_ctime
, &target_stx
->stx_ctime
.tv_sec
);
11897 unlock_user_struct(target_stx
, arg5
, 1);
11902 #ifdef TARGET_NR_lchown
11903 case TARGET_NR_lchown
:
11904 if (!(p
= lock_user_string(arg1
)))
11905 return -TARGET_EFAULT
;
11906 ret
= get_errno(lchown(p
, low2highuid(arg2
), low2highgid(arg3
)));
11907 unlock_user(p
, arg1
, 0);
11910 #ifdef TARGET_NR_getuid
11911 case TARGET_NR_getuid
:
11912 return get_errno(high2lowuid(getuid()));
11914 #ifdef TARGET_NR_getgid
11915 case TARGET_NR_getgid
:
11916 return get_errno(high2lowgid(getgid()));
11918 #ifdef TARGET_NR_geteuid
11919 case TARGET_NR_geteuid
:
11920 return get_errno(high2lowuid(geteuid()));
11922 #ifdef TARGET_NR_getegid
11923 case TARGET_NR_getegid
:
11924 return get_errno(high2lowgid(getegid()));
11926 case TARGET_NR_setreuid
:
11927 return get_errno(setreuid(low2highuid(arg1
), low2highuid(arg2
)));
11928 case TARGET_NR_setregid
:
11929 return get_errno(setregid(low2highgid(arg1
), low2highgid(arg2
)));
11930 case TARGET_NR_getgroups
:
11931 { /* the same code as for TARGET_NR_getgroups32 */
11932 int gidsetsize
= arg1
;
11933 target_id
*target_grouplist
;
11934 g_autofree gid_t
*grouplist
= NULL
;
11937 if (gidsetsize
> NGROUPS_MAX
|| gidsetsize
< 0) {
11938 return -TARGET_EINVAL
;
11940 if (gidsetsize
> 0) {
11941 grouplist
= g_try_new(gid_t
, gidsetsize
);
11943 return -TARGET_ENOMEM
;
11946 ret
= get_errno(getgroups(gidsetsize
, grouplist
));
11947 if (!is_error(ret
) && gidsetsize
> 0) {
11948 target_grouplist
= lock_user(VERIFY_WRITE
, arg2
,
11949 gidsetsize
* sizeof(target_id
), 0);
11950 if (!target_grouplist
) {
11951 return -TARGET_EFAULT
;
11953 for (i
= 0; i
< ret
; i
++) {
11954 target_grouplist
[i
] = tswapid(high2lowgid(grouplist
[i
]));
11956 unlock_user(target_grouplist
, arg2
,
11957 gidsetsize
* sizeof(target_id
));
11961 case TARGET_NR_setgroups
:
11962 { /* the same code as for TARGET_NR_setgroups32 */
11963 int gidsetsize
= arg1
;
11964 target_id
*target_grouplist
;
11965 g_autofree gid_t
*grouplist
= NULL
;
11968 if (gidsetsize
> NGROUPS_MAX
|| gidsetsize
< 0) {
11969 return -TARGET_EINVAL
;
11971 if (gidsetsize
> 0) {
11972 grouplist
= g_try_new(gid_t
, gidsetsize
);
11974 return -TARGET_ENOMEM
;
11976 target_grouplist
= lock_user(VERIFY_READ
, arg2
,
11977 gidsetsize
* sizeof(target_id
), 1);
11978 if (!target_grouplist
) {
11979 return -TARGET_EFAULT
;
11981 for (i
= 0; i
< gidsetsize
; i
++) {
11982 grouplist
[i
] = low2highgid(tswapid(target_grouplist
[i
]));
11984 unlock_user(target_grouplist
, arg2
,
11985 gidsetsize
* sizeof(target_id
));
11987 return get_errno(setgroups(gidsetsize
, grouplist
));
11989 case TARGET_NR_fchown
:
11990 return get_errno(fchown(arg1
, low2highuid(arg2
), low2highgid(arg3
)));
11991 #if defined(TARGET_NR_fchownat)
11992 case TARGET_NR_fchownat
:
11993 if (!(p
= lock_user_string(arg2
)))
11994 return -TARGET_EFAULT
;
11995 ret
= get_errno(fchownat(arg1
, p
, low2highuid(arg3
),
11996 low2highgid(arg4
), arg5
));
11997 unlock_user(p
, arg2
, 0);
12000 #ifdef TARGET_NR_setresuid
12001 case TARGET_NR_setresuid
:
12002 return get_errno(sys_setresuid(low2highuid(arg1
),
12004 low2highuid(arg3
)));
12006 #ifdef TARGET_NR_getresuid
12007 case TARGET_NR_getresuid
:
12009 uid_t ruid
, euid
, suid
;
12010 ret
= get_errno(getresuid(&ruid
, &euid
, &suid
));
12011 if (!is_error(ret
)) {
12012 if (put_user_id(high2lowuid(ruid
), arg1
)
12013 || put_user_id(high2lowuid(euid
), arg2
)
12014 || put_user_id(high2lowuid(suid
), arg3
))
12015 return -TARGET_EFAULT
;
12020 #ifdef TARGET_NR_getresgid
12021 case TARGET_NR_setresgid
:
12022 return get_errno(sys_setresgid(low2highgid(arg1
),
12024 low2highgid(arg3
)));
12026 #ifdef TARGET_NR_getresgid
12027 case TARGET_NR_getresgid
:
12029 gid_t rgid
, egid
, sgid
;
12030 ret
= get_errno(getresgid(&rgid
, &egid
, &sgid
));
12031 if (!is_error(ret
)) {
12032 if (put_user_id(high2lowgid(rgid
), arg1
)
12033 || put_user_id(high2lowgid(egid
), arg2
)
12034 || put_user_id(high2lowgid(sgid
), arg3
))
12035 return -TARGET_EFAULT
;
12040 #ifdef TARGET_NR_chown
12041 case TARGET_NR_chown
:
12042 if (!(p
= lock_user_string(arg1
)))
12043 return -TARGET_EFAULT
;
12044 ret
= get_errno(chown(p
, low2highuid(arg2
), low2highgid(arg3
)));
12045 unlock_user(p
, arg1
, 0);
12048 case TARGET_NR_setuid
:
12049 return get_errno(sys_setuid(low2highuid(arg1
)));
12050 case TARGET_NR_setgid
:
12051 return get_errno(sys_setgid(low2highgid(arg1
)));
12052 case TARGET_NR_setfsuid
:
12053 return get_errno(setfsuid(arg1
));
12054 case TARGET_NR_setfsgid
:
12055 return get_errno(setfsgid(arg1
));
12057 #ifdef TARGET_NR_lchown32
12058 case TARGET_NR_lchown32
:
12059 if (!(p
= lock_user_string(arg1
)))
12060 return -TARGET_EFAULT
;
12061 ret
= get_errno(lchown(p
, arg2
, arg3
));
12062 unlock_user(p
, arg1
, 0);
12065 #ifdef TARGET_NR_getuid32
12066 case TARGET_NR_getuid32
:
12067 return get_errno(getuid());
12070 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
12071 /* Alpha specific */
12072 case TARGET_NR_getxuid
:
12076 cpu_env
->ir
[IR_A4
]=euid
;
12078 return get_errno(getuid());
12080 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
12081 /* Alpha specific */
12082 case TARGET_NR_getxgid
:
12086 cpu_env
->ir
[IR_A4
]=egid
;
12088 return get_errno(getgid());
12090 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
12091 /* Alpha specific */
12092 case TARGET_NR_osf_getsysinfo
:
12093 ret
= -TARGET_EOPNOTSUPP
;
12095 case TARGET_GSI_IEEE_FP_CONTROL
:
12097 uint64_t fpcr
= cpu_alpha_load_fpcr(cpu_env
);
12098 uint64_t swcr
= cpu_env
->swcr
;
12100 swcr
&= ~SWCR_STATUS_MASK
;
12101 swcr
|= (fpcr
>> 35) & SWCR_STATUS_MASK
;
12103 if (put_user_u64 (swcr
, arg2
))
12104 return -TARGET_EFAULT
;
12109 /* case GSI_IEEE_STATE_AT_SIGNAL:
12110 -- Not implemented in linux kernel.
12112 -- Retrieves current unaligned access state; not much used.
12113 case GSI_PROC_TYPE:
12114 -- Retrieves implver information; surely not used.
12115 case GSI_GET_HWRPB:
12116 -- Grabs a copy of the HWRPB; surely not used.
12121 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
12122 /* Alpha specific */
12123 case TARGET_NR_osf_setsysinfo
:
12124 ret
= -TARGET_EOPNOTSUPP
;
12126 case TARGET_SSI_IEEE_FP_CONTROL
:
12128 uint64_t swcr
, fpcr
;
12130 if (get_user_u64 (swcr
, arg2
)) {
12131 return -TARGET_EFAULT
;
12135 * The kernel calls swcr_update_status to update the
12136 * status bits from the fpcr at every point that it
12137 * could be queried. Therefore, we store the status
12138 * bits only in FPCR.
12140 cpu_env
->swcr
= swcr
& (SWCR_TRAP_ENABLE_MASK
| SWCR_MAP_MASK
);
12142 fpcr
= cpu_alpha_load_fpcr(cpu_env
);
12143 fpcr
&= ((uint64_t)FPCR_DYN_MASK
<< 32);
12144 fpcr
|= alpha_ieee_swcr_to_fpcr(swcr
);
12145 cpu_alpha_store_fpcr(cpu_env
, fpcr
);
12150 case TARGET_SSI_IEEE_RAISE_EXCEPTION
:
12152 uint64_t exc
, fpcr
, fex
;
12154 if (get_user_u64(exc
, arg2
)) {
12155 return -TARGET_EFAULT
;
12157 exc
&= SWCR_STATUS_MASK
;
12158 fpcr
= cpu_alpha_load_fpcr(cpu_env
);
12160 /* Old exceptions are not signaled. */
12161 fex
= alpha_ieee_fpcr_to_swcr(fpcr
);
12163 fex
>>= SWCR_STATUS_TO_EXCSUM_SHIFT
;
12164 fex
&= (cpu_env
)->swcr
;
12166 /* Update the hardware fpcr. */
12167 fpcr
|= alpha_ieee_swcr_to_fpcr(exc
);
12168 cpu_alpha_store_fpcr(cpu_env
, fpcr
);
12171 int si_code
= TARGET_FPE_FLTUNK
;
12172 target_siginfo_t info
;
12174 if (fex
& SWCR_TRAP_ENABLE_DNO
) {
12175 si_code
= TARGET_FPE_FLTUND
;
12177 if (fex
& SWCR_TRAP_ENABLE_INE
) {
12178 si_code
= TARGET_FPE_FLTRES
;
12180 if (fex
& SWCR_TRAP_ENABLE_UNF
) {
12181 si_code
= TARGET_FPE_FLTUND
;
12183 if (fex
& SWCR_TRAP_ENABLE_OVF
) {
12184 si_code
= TARGET_FPE_FLTOVF
;
12186 if (fex
& SWCR_TRAP_ENABLE_DZE
) {
12187 si_code
= TARGET_FPE_FLTDIV
;
12189 if (fex
& SWCR_TRAP_ENABLE_INV
) {
12190 si_code
= TARGET_FPE_FLTINV
;
12193 info
.si_signo
= SIGFPE
;
12195 info
.si_code
= si_code
;
12196 info
._sifields
._sigfault
._addr
= (cpu_env
)->pc
;
12197 queue_signal(cpu_env
, info
.si_signo
,
12198 QEMU_SI_FAULT
, &info
);
12204 /* case SSI_NVPAIRS:
12205 -- Used with SSIN_UACPROC to enable unaligned accesses.
12206 case SSI_IEEE_STATE_AT_SIGNAL:
12207 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
12208 -- Not implemented in linux kernel
12213 #ifdef TARGET_NR_osf_sigprocmask
12214 /* Alpha specific. */
12215 case TARGET_NR_osf_sigprocmask
:
12219 sigset_t set
, oldset
;
12222 case TARGET_SIG_BLOCK
:
12225 case TARGET_SIG_UNBLOCK
:
12228 case TARGET_SIG_SETMASK
:
12232 return -TARGET_EINVAL
;
12235 target_to_host_old_sigset(&set
, &mask
);
12236 ret
= do_sigprocmask(how
, &set
, &oldset
);
12238 host_to_target_old_sigset(&mask
, &oldset
);
12245 #ifdef TARGET_NR_getgid32
12246 case TARGET_NR_getgid32
:
12247 return get_errno(getgid());
12249 #ifdef TARGET_NR_geteuid32
12250 case TARGET_NR_geteuid32
:
12251 return get_errno(geteuid());
12253 #ifdef TARGET_NR_getegid32
12254 case TARGET_NR_getegid32
:
12255 return get_errno(getegid());
12257 #ifdef TARGET_NR_setreuid32
12258 case TARGET_NR_setreuid32
:
12259 return get_errno(setreuid(arg1
, arg2
));
12261 #ifdef TARGET_NR_setregid32
12262 case TARGET_NR_setregid32
:
12263 return get_errno(setregid(arg1
, arg2
));
12265 #ifdef TARGET_NR_getgroups32
12266 case TARGET_NR_getgroups32
:
12267 { /* the same code as for TARGET_NR_getgroups */
12268 int gidsetsize
= arg1
;
12269 uint32_t *target_grouplist
;
12270 g_autofree gid_t
*grouplist
= NULL
;
12273 if (gidsetsize
> NGROUPS_MAX
|| gidsetsize
< 0) {
12274 return -TARGET_EINVAL
;
12276 if (gidsetsize
> 0) {
12277 grouplist
= g_try_new(gid_t
, gidsetsize
);
12279 return -TARGET_ENOMEM
;
12282 ret
= get_errno(getgroups(gidsetsize
, grouplist
));
12283 if (!is_error(ret
) && gidsetsize
> 0) {
12284 target_grouplist
= lock_user(VERIFY_WRITE
, arg2
,
12285 gidsetsize
* 4, 0);
12286 if (!target_grouplist
) {
12287 return -TARGET_EFAULT
;
12289 for (i
= 0; i
< ret
; i
++) {
12290 target_grouplist
[i
] = tswap32(grouplist
[i
]);
12292 unlock_user(target_grouplist
, arg2
, gidsetsize
* 4);
12297 #ifdef TARGET_NR_setgroups32
12298 case TARGET_NR_setgroups32
:
12299 { /* the same code as for TARGET_NR_setgroups */
12300 int gidsetsize
= arg1
;
12301 uint32_t *target_grouplist
;
12302 g_autofree gid_t
*grouplist
= NULL
;
12305 if (gidsetsize
> NGROUPS_MAX
|| gidsetsize
< 0) {
12306 return -TARGET_EINVAL
;
12308 if (gidsetsize
> 0) {
12309 grouplist
= g_try_new(gid_t
, gidsetsize
);
12311 return -TARGET_ENOMEM
;
12313 target_grouplist
= lock_user(VERIFY_READ
, arg2
,
12314 gidsetsize
* 4, 1);
12315 if (!target_grouplist
) {
12316 return -TARGET_EFAULT
;
12318 for (i
= 0; i
< gidsetsize
; i
++) {
12319 grouplist
[i
] = tswap32(target_grouplist
[i
]);
12321 unlock_user(target_grouplist
, arg2
, 0);
12323 return get_errno(setgroups(gidsetsize
, grouplist
));
12326 #ifdef TARGET_NR_fchown32
12327 case TARGET_NR_fchown32
:
12328 return get_errno(fchown(arg1
, arg2
, arg3
));
12330 #ifdef TARGET_NR_setresuid32
12331 case TARGET_NR_setresuid32
:
12332 return get_errno(sys_setresuid(arg1
, arg2
, arg3
));
12334 #ifdef TARGET_NR_getresuid32
12335 case TARGET_NR_getresuid32
:
12337 uid_t ruid
, euid
, suid
;
12338 ret
= get_errno(getresuid(&ruid
, &euid
, &suid
));
12339 if (!is_error(ret
)) {
12340 if (put_user_u32(ruid
, arg1
)
12341 || put_user_u32(euid
, arg2
)
12342 || put_user_u32(suid
, arg3
))
12343 return -TARGET_EFAULT
;
12348 #ifdef TARGET_NR_setresgid32
12349 case TARGET_NR_setresgid32
:
12350 return get_errno(sys_setresgid(arg1
, arg2
, arg3
));
12352 #ifdef TARGET_NR_getresgid32
12353 case TARGET_NR_getresgid32
:
12355 gid_t rgid
, egid
, sgid
;
12356 ret
= get_errno(getresgid(&rgid
, &egid
, &sgid
));
12357 if (!is_error(ret
)) {
12358 if (put_user_u32(rgid
, arg1
)
12359 || put_user_u32(egid
, arg2
)
12360 || put_user_u32(sgid
, arg3
))
12361 return -TARGET_EFAULT
;
12366 #ifdef TARGET_NR_chown32
12367 case TARGET_NR_chown32
:
12368 if (!(p
= lock_user_string(arg1
)))
12369 return -TARGET_EFAULT
;
12370 ret
= get_errno(chown(p
, arg2
, arg3
));
12371 unlock_user(p
, arg1
, 0);
12374 #ifdef TARGET_NR_setuid32
12375 case TARGET_NR_setuid32
:
12376 return get_errno(sys_setuid(arg1
));
12378 #ifdef TARGET_NR_setgid32
12379 case TARGET_NR_setgid32
:
12380 return get_errno(sys_setgid(arg1
));
12382 #ifdef TARGET_NR_setfsuid32
12383 case TARGET_NR_setfsuid32
:
12384 return get_errno(setfsuid(arg1
));
12386 #ifdef TARGET_NR_setfsgid32
12387 case TARGET_NR_setfsgid32
:
12388 return get_errno(setfsgid(arg1
));
12390 #ifdef TARGET_NR_mincore
12391 case TARGET_NR_mincore
:
12393 void *a
= lock_user(VERIFY_NONE
, arg1
, arg2
, 0);
12395 return -TARGET_ENOMEM
;
12397 p
= lock_user_string(arg3
);
12399 ret
= -TARGET_EFAULT
;
12401 ret
= get_errno(mincore(a
, arg2
, p
));
12402 unlock_user(p
, arg3
, ret
);
12404 unlock_user(a
, arg1
, 0);
12408 #ifdef TARGET_NR_arm_fadvise64_64
12409 case TARGET_NR_arm_fadvise64_64
:
12410 /* arm_fadvise64_64 looks like fadvise64_64 but
12411 * with different argument order: fd, advice, offset, len
12412 * rather than the usual fd, offset, len, advice.
12413 * Note that offset and len are both 64-bit so appear as
12414 * pairs of 32-bit registers.
12416 ret
= posix_fadvise(arg1
, target_offset64(arg3
, arg4
),
12417 target_offset64(arg5
, arg6
), arg2
);
12418 return -host_to_target_errno(ret
);
12421 #if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
12423 #ifdef TARGET_NR_fadvise64_64
12424 case TARGET_NR_fadvise64_64
:
12425 #if defined(TARGET_PPC) || defined(TARGET_XTENSA)
12426 /* 6 args: fd, advice, offset (high, low), len (high, low) */
12434 /* 6 args: fd, offset (high, low), len (high, low), advice */
12435 if (regpairs_aligned(cpu_env
, num
)) {
12436 /* offset is in (3,4), len in (5,6) and advice in 7 */
12444 ret
= posix_fadvise(arg1
, target_offset64(arg2
, arg3
),
12445 target_offset64(arg4
, arg5
), arg6
);
12446 return -host_to_target_errno(ret
);
12449 #ifdef TARGET_NR_fadvise64
12450 case TARGET_NR_fadvise64
:
12451 /* 5 args: fd, offset (high, low), len, advice */
12452 if (regpairs_aligned(cpu_env
, num
)) {
12453 /* offset is in (3,4), len in 5 and advice in 6 */
12459 ret
= posix_fadvise(arg1
, target_offset64(arg2
, arg3
), arg4
, arg5
);
12460 return -host_to_target_errno(ret
);
12463 #else /* not a 32-bit ABI */
12464 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
12465 #ifdef TARGET_NR_fadvise64_64
12466 case TARGET_NR_fadvise64_64
:
12468 #ifdef TARGET_NR_fadvise64
12469 case TARGET_NR_fadvise64
:
12471 #ifdef TARGET_S390X
12473 case 4: arg4
= POSIX_FADV_NOREUSE
+ 1; break; /* make sure it's an invalid value */
12474 case 5: arg4
= POSIX_FADV_NOREUSE
+ 2; break; /* ditto */
12475 case 6: arg4
= POSIX_FADV_DONTNEED
; break;
12476 case 7: arg4
= POSIX_FADV_NOREUSE
; break;
12480 return -host_to_target_errno(posix_fadvise(arg1
, arg2
, arg3
, arg4
));
12482 #endif /* end of 64-bit ABI fadvise handling */
12484 #ifdef TARGET_NR_madvise
12485 case TARGET_NR_madvise
:
12486 return target_madvise(arg1
, arg2
, arg3
);
12488 #ifdef TARGET_NR_fcntl64
12489 case TARGET_NR_fcntl64
:
12493 from_flock64_fn
*copyfrom
= copy_from_user_flock64
;
12494 to_flock64_fn
*copyto
= copy_to_user_flock64
;
12497 if (!cpu_env
->eabi
) {
12498 copyfrom
= copy_from_user_oabi_flock64
;
12499 copyto
= copy_to_user_oabi_flock64
;
12503 cmd
= target_to_host_fcntl_cmd(arg2
);
12504 if (cmd
== -TARGET_EINVAL
) {
12509 case TARGET_F_GETLK64
:
12510 ret
= copyfrom(&fl
, arg3
);
12514 ret
= get_errno(safe_fcntl(arg1
, cmd
, &fl
));
12516 ret
= copyto(arg3
, &fl
);
12520 case TARGET_F_SETLK64
:
12521 case TARGET_F_SETLKW64
:
12522 ret
= copyfrom(&fl
, arg3
);
12526 ret
= get_errno(safe_fcntl(arg1
, cmd
, &fl
));
12529 ret
= do_fcntl(arg1
, arg2
, arg3
);
12535 #ifdef TARGET_NR_cacheflush
12536 case TARGET_NR_cacheflush
:
12537 /* self-modifying code is handled automatically, so nothing needed */
12540 #ifdef TARGET_NR_getpagesize
12541 case TARGET_NR_getpagesize
:
12542 return TARGET_PAGE_SIZE
;
12544 case TARGET_NR_gettid
:
12545 return get_errno(sys_gettid());
12546 #ifdef TARGET_NR_readahead
12547 case TARGET_NR_readahead
:
12548 #if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
12549 if (regpairs_aligned(cpu_env
, num
)) {
12554 ret
= get_errno(readahead(arg1
, target_offset64(arg2
, arg3
) , arg4
));
12556 ret
= get_errno(readahead(arg1
, arg2
, arg3
));
12561 #ifdef TARGET_NR_setxattr
12562 case TARGET_NR_listxattr
:
12563 case TARGET_NR_llistxattr
:
12567 b
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0);
12569 return -TARGET_EFAULT
;
12572 p
= lock_user_string(arg1
);
12574 if (num
== TARGET_NR_listxattr
) {
12575 ret
= get_errno(listxattr(p
, b
, arg3
));
12577 ret
= get_errno(llistxattr(p
, b
, arg3
));
12580 ret
= -TARGET_EFAULT
;
12582 unlock_user(p
, arg1
, 0);
12583 unlock_user(b
, arg2
, arg3
);
12586 case TARGET_NR_flistxattr
:
12590 b
= lock_user(VERIFY_WRITE
, arg2
, arg3
, 0);
12592 return -TARGET_EFAULT
;
12595 ret
= get_errno(flistxattr(arg1
, b
, arg3
));
12596 unlock_user(b
, arg2
, arg3
);
12599 case TARGET_NR_setxattr
:
12600 case TARGET_NR_lsetxattr
:
12602 void *p
, *n
, *v
= 0;
12604 v
= lock_user(VERIFY_READ
, arg3
, arg4
, 1);
12606 return -TARGET_EFAULT
;
12609 p
= lock_user_string(arg1
);
12610 n
= lock_user_string(arg2
);
12612 if (num
== TARGET_NR_setxattr
) {
12613 ret
= get_errno(setxattr(p
, n
, v
, arg4
, arg5
));
12615 ret
= get_errno(lsetxattr(p
, n
, v
, arg4
, arg5
));
12618 ret
= -TARGET_EFAULT
;
12620 unlock_user(p
, arg1
, 0);
12621 unlock_user(n
, arg2
, 0);
12622 unlock_user(v
, arg3
, 0);
12625 case TARGET_NR_fsetxattr
:
12629 v
= lock_user(VERIFY_READ
, arg3
, arg4
, 1);
12631 return -TARGET_EFAULT
;
12634 n
= lock_user_string(arg2
);
12636 ret
= get_errno(fsetxattr(arg1
, n
, v
, arg4
, arg5
));
12638 ret
= -TARGET_EFAULT
;
12640 unlock_user(n
, arg2
, 0);
12641 unlock_user(v
, arg3
, 0);
12644 case TARGET_NR_getxattr
:
12645 case TARGET_NR_lgetxattr
:
12647 void *p
, *n
, *v
= 0;
12649 v
= lock_user(VERIFY_WRITE
, arg3
, arg4
, 0);
12651 return -TARGET_EFAULT
;
12654 p
= lock_user_string(arg1
);
12655 n
= lock_user_string(arg2
);
12657 if (num
== TARGET_NR_getxattr
) {
12658 ret
= get_errno(getxattr(p
, n
, v
, arg4
));
12660 ret
= get_errno(lgetxattr(p
, n
, v
, arg4
));
12663 ret
= -TARGET_EFAULT
;
12665 unlock_user(p
, arg1
, 0);
12666 unlock_user(n
, arg2
, 0);
12667 unlock_user(v
, arg3
, arg4
);
12670 case TARGET_NR_fgetxattr
:
12674 v
= lock_user(VERIFY_WRITE
, arg3
, arg4
, 0);
12676 return -TARGET_EFAULT
;
12679 n
= lock_user_string(arg2
);
12681 ret
= get_errno(fgetxattr(arg1
, n
, v
, arg4
));
12683 ret
= -TARGET_EFAULT
;
12685 unlock_user(n
, arg2
, 0);
12686 unlock_user(v
, arg3
, arg4
);
12689 case TARGET_NR_removexattr
:
12690 case TARGET_NR_lremovexattr
:
12693 p
= lock_user_string(arg1
);
12694 n
= lock_user_string(arg2
);
12696 if (num
== TARGET_NR_removexattr
) {
12697 ret
= get_errno(removexattr(p
, n
));
12699 ret
= get_errno(lremovexattr(p
, n
));
12702 ret
= -TARGET_EFAULT
;
12704 unlock_user(p
, arg1
, 0);
12705 unlock_user(n
, arg2
, 0);
12708 case TARGET_NR_fremovexattr
:
12711 n
= lock_user_string(arg2
);
12713 ret
= get_errno(fremovexattr(arg1
, n
));
12715 ret
= -TARGET_EFAULT
;
12717 unlock_user(n
, arg2
, 0);
12721 #endif /* CONFIG_ATTR */
12722 #ifdef TARGET_NR_set_thread_area
12723 case TARGET_NR_set_thread_area
:
12724 #if defined(TARGET_MIPS)
12725 cpu_env
->active_tc
.CP0_UserLocal
= arg1
;
12727 #elif defined(TARGET_CRIS)
12729 ret
= -TARGET_EINVAL
;
12731 cpu_env
->pregs
[PR_PID
] = arg1
;
12735 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
12736 return do_set_thread_area(cpu_env
, arg1
);
12737 #elif defined(TARGET_M68K)
12739 TaskState
*ts
= cpu
->opaque
;
12740 ts
->tp_value
= arg1
;
12744 return -TARGET_ENOSYS
;
12747 #ifdef TARGET_NR_get_thread_area
12748 case TARGET_NR_get_thread_area
:
12749 #if defined(TARGET_I386) && defined(TARGET_ABI32)
12750 return do_get_thread_area(cpu_env
, arg1
);
12751 #elif defined(TARGET_M68K)
12753 TaskState
*ts
= cpu
->opaque
;
12754 return ts
->tp_value
;
12757 return -TARGET_ENOSYS
;
12760 #ifdef TARGET_NR_getdomainname
12761 case TARGET_NR_getdomainname
:
12762 return -TARGET_ENOSYS
;
12765 #ifdef TARGET_NR_clock_settime
12766 case TARGET_NR_clock_settime
:
12768 struct timespec ts
;
12770 ret
= target_to_host_timespec(&ts
, arg2
);
12771 if (!is_error(ret
)) {
12772 ret
= get_errno(clock_settime(arg1
, &ts
));
12777 #ifdef TARGET_NR_clock_settime64
12778 case TARGET_NR_clock_settime64
:
12780 struct timespec ts
;
12782 ret
= target_to_host_timespec64(&ts
, arg2
);
12783 if (!is_error(ret
)) {
12784 ret
= get_errno(clock_settime(arg1
, &ts
));
12789 #ifdef TARGET_NR_clock_gettime
12790 case TARGET_NR_clock_gettime
:
12792 struct timespec ts
;
12793 ret
= get_errno(clock_gettime(arg1
, &ts
));
12794 if (!is_error(ret
)) {
12795 ret
= host_to_target_timespec(arg2
, &ts
);
12800 #ifdef TARGET_NR_clock_gettime64
12801 case TARGET_NR_clock_gettime64
:
12803 struct timespec ts
;
12804 ret
= get_errno(clock_gettime(arg1
, &ts
));
12805 if (!is_error(ret
)) {
12806 ret
= host_to_target_timespec64(arg2
, &ts
);
12811 #ifdef TARGET_NR_clock_getres
12812 case TARGET_NR_clock_getres
:
12814 struct timespec ts
;
12815 ret
= get_errno(clock_getres(arg1
, &ts
));
12816 if (!is_error(ret
)) {
12817 host_to_target_timespec(arg2
, &ts
);
12822 #ifdef TARGET_NR_clock_getres_time64
12823 case TARGET_NR_clock_getres_time64
:
12825 struct timespec ts
;
12826 ret
= get_errno(clock_getres(arg1
, &ts
));
12827 if (!is_error(ret
)) {
12828 host_to_target_timespec64(arg2
, &ts
);
12833 #ifdef TARGET_NR_clock_nanosleep
12834 case TARGET_NR_clock_nanosleep
:
12836 struct timespec ts
;
12837 if (target_to_host_timespec(&ts
, arg3
)) {
12838 return -TARGET_EFAULT
;
12840 ret
= get_errno(safe_clock_nanosleep(arg1
, arg2
,
12841 &ts
, arg4
? &ts
: NULL
));
12843 * if the call is interrupted by a signal handler, it fails
12844 * with error -TARGET_EINTR and if arg4 is not NULL and arg2 is not
12845 * TIMER_ABSTIME, it returns the remaining unslept time in arg4.
12847 if (ret
== -TARGET_EINTR
&& arg4
&& arg2
!= TIMER_ABSTIME
&&
12848 host_to_target_timespec(arg4
, &ts
)) {
12849 return -TARGET_EFAULT
;
12855 #ifdef TARGET_NR_clock_nanosleep_time64
12856 case TARGET_NR_clock_nanosleep_time64
:
12858 struct timespec ts
;
12860 if (target_to_host_timespec64(&ts
, arg3
)) {
12861 return -TARGET_EFAULT
;
12864 ret
= get_errno(safe_clock_nanosleep(arg1
, arg2
,
12865 &ts
, arg4
? &ts
: NULL
));
12867 if (ret
== -TARGET_EINTR
&& arg4
&& arg2
!= TIMER_ABSTIME
&&
12868 host_to_target_timespec64(arg4
, &ts
)) {
12869 return -TARGET_EFAULT
;
12875 #if defined(TARGET_NR_set_tid_address)
12876 case TARGET_NR_set_tid_address
:
12878 TaskState
*ts
= cpu
->opaque
;
12879 ts
->child_tidptr
= arg1
;
12880 /* do not call host set_tid_address() syscall, instead return tid() */
12881 return get_errno(sys_gettid());
12885 case TARGET_NR_tkill
:
12886 return get_errno(safe_tkill((int)arg1
, target_to_host_signal(arg2
)));
12888 case TARGET_NR_tgkill
:
12889 return get_errno(safe_tgkill((int)arg1
, (int)arg2
,
12890 target_to_host_signal(arg3
)));
12892 #ifdef TARGET_NR_set_robust_list
12893 case TARGET_NR_set_robust_list
:
12894 case TARGET_NR_get_robust_list
:
12895 /* The ABI for supporting robust futexes has userspace pass
12896 * the kernel a pointer to a linked list which is updated by
12897 * userspace after the syscall; the list is walked by the kernel
12898 * when the thread exits. Since the linked list in QEMU guest
12899 * memory isn't a valid linked list for the host and we have
12900 * no way to reliably intercept the thread-death event, we can't
12901 * support these. Silently return ENOSYS so that guest userspace
12902 * falls back to a non-robust futex implementation (which should
12903 * be OK except in the corner case of the guest crashing while
12904 * holding a mutex that is shared with another process via
12907 return -TARGET_ENOSYS
;
12910 #if defined(TARGET_NR_utimensat)
12911 case TARGET_NR_utimensat
:
12913 struct timespec
*tsp
, ts
[2];
12917 if (target_to_host_timespec(ts
, arg3
)) {
12918 return -TARGET_EFAULT
;
12920 if (target_to_host_timespec(ts
+ 1, arg3
+
12921 sizeof(struct target_timespec
))) {
12922 return -TARGET_EFAULT
;
12927 ret
= get_errno(sys_utimensat(arg1
, NULL
, tsp
, arg4
));
12929 if (!(p
= lock_user_string(arg2
))) {
12930 return -TARGET_EFAULT
;
12932 ret
= get_errno(sys_utimensat(arg1
, path(p
), tsp
, arg4
));
12933 unlock_user(p
, arg2
, 0);
12938 #ifdef TARGET_NR_utimensat_time64
12939 case TARGET_NR_utimensat_time64
:
12941 struct timespec
*tsp
, ts
[2];
12945 if (target_to_host_timespec64(ts
, arg3
)) {
12946 return -TARGET_EFAULT
;
12948 if (target_to_host_timespec64(ts
+ 1, arg3
+
12949 sizeof(struct target__kernel_timespec
))) {
12950 return -TARGET_EFAULT
;
12955 ret
= get_errno(sys_utimensat(arg1
, NULL
, tsp
, arg4
));
12957 p
= lock_user_string(arg2
);
12959 return -TARGET_EFAULT
;
12961 ret
= get_errno(sys_utimensat(arg1
, path(p
), tsp
, arg4
));
12962 unlock_user(p
, arg2
, 0);
12967 #ifdef TARGET_NR_futex
12968 case TARGET_NR_futex
:
12969 return do_futex(cpu
, false, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
12971 #ifdef TARGET_NR_futex_time64
12972 case TARGET_NR_futex_time64
:
12973 return do_futex(cpu
, true, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
12975 #ifdef CONFIG_INOTIFY
12976 #if defined(TARGET_NR_inotify_init)
12977 case TARGET_NR_inotify_init
:
12978 ret
= get_errno(inotify_init());
12980 fd_trans_register(ret
, &target_inotify_trans
);
12984 #if defined(TARGET_NR_inotify_init1) && defined(CONFIG_INOTIFY1)
12985 case TARGET_NR_inotify_init1
:
12986 ret
= get_errno(inotify_init1(target_to_host_bitmask(arg1
,
12987 fcntl_flags_tbl
)));
12989 fd_trans_register(ret
, &target_inotify_trans
);
12993 #if defined(TARGET_NR_inotify_add_watch)
12994 case TARGET_NR_inotify_add_watch
:
12995 p
= lock_user_string(arg2
);
12996 ret
= get_errno(inotify_add_watch(arg1
, path(p
), arg3
));
12997 unlock_user(p
, arg2
, 0);
13000 #if defined(TARGET_NR_inotify_rm_watch)
13001 case TARGET_NR_inotify_rm_watch
:
13002 return get_errno(inotify_rm_watch(arg1
, arg2
));
13006 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
13007 case TARGET_NR_mq_open
:
13009 struct mq_attr posix_mq_attr
;
13010 struct mq_attr
*pposix_mq_attr
;
13013 host_flags
= target_to_host_bitmask(arg2
, fcntl_flags_tbl
);
13014 pposix_mq_attr
= NULL
;
13016 if (copy_from_user_mq_attr(&posix_mq_attr
, arg4
) != 0) {
13017 return -TARGET_EFAULT
;
13019 pposix_mq_attr
= &posix_mq_attr
;
13021 p
= lock_user_string(arg1
- 1);
13023 return -TARGET_EFAULT
;
13025 ret
= get_errno(mq_open(p
, host_flags
, arg3
, pposix_mq_attr
));
13026 unlock_user (p
, arg1
, 0);
13030 case TARGET_NR_mq_unlink
:
13031 p
= lock_user_string(arg1
- 1);
13033 return -TARGET_EFAULT
;
13035 ret
= get_errno(mq_unlink(p
));
13036 unlock_user (p
, arg1
, 0);
13039 #ifdef TARGET_NR_mq_timedsend
13040 case TARGET_NR_mq_timedsend
:
13042 struct timespec ts
;
13044 p
= lock_user (VERIFY_READ
, arg2
, arg3
, 1);
13046 if (target_to_host_timespec(&ts
, arg5
)) {
13047 return -TARGET_EFAULT
;
13049 ret
= get_errno(safe_mq_timedsend(arg1
, p
, arg3
, arg4
, &ts
));
13050 if (!is_error(ret
) && host_to_target_timespec(arg5
, &ts
)) {
13051 return -TARGET_EFAULT
;
13054 ret
= get_errno(safe_mq_timedsend(arg1
, p
, arg3
, arg4
, NULL
));
13056 unlock_user (p
, arg2
, arg3
);
13060 #ifdef TARGET_NR_mq_timedsend_time64
13061 case TARGET_NR_mq_timedsend_time64
:
13063 struct timespec ts
;
13065 p
= lock_user(VERIFY_READ
, arg2
, arg3
, 1);
13067 if (target_to_host_timespec64(&ts
, arg5
)) {
13068 return -TARGET_EFAULT
;
13070 ret
= get_errno(safe_mq_timedsend(arg1
, p
, arg3
, arg4
, &ts
));
13071 if (!is_error(ret
) && host_to_target_timespec64(arg5
, &ts
)) {
13072 return -TARGET_EFAULT
;
13075 ret
= get_errno(safe_mq_timedsend(arg1
, p
, arg3
, arg4
, NULL
));
13077 unlock_user(p
, arg2
, arg3
);
13082 #ifdef TARGET_NR_mq_timedreceive
13083 case TARGET_NR_mq_timedreceive
:
13085 struct timespec ts
;
13088 p
= lock_user (VERIFY_READ
, arg2
, arg3
, 1);
13090 if (target_to_host_timespec(&ts
, arg5
)) {
13091 return -TARGET_EFAULT
;
13093 ret
= get_errno(safe_mq_timedreceive(arg1
, p
, arg3
,
13095 if (!is_error(ret
) && host_to_target_timespec(arg5
, &ts
)) {
13096 return -TARGET_EFAULT
;
13099 ret
= get_errno(safe_mq_timedreceive(arg1
, p
, arg3
,
13102 unlock_user (p
, arg2
, arg3
);
13104 put_user_u32(prio
, arg4
);
13108 #ifdef TARGET_NR_mq_timedreceive_time64
13109 case TARGET_NR_mq_timedreceive_time64
:
13111 struct timespec ts
;
13114 p
= lock_user(VERIFY_READ
, arg2
, arg3
, 1);
13116 if (target_to_host_timespec64(&ts
, arg5
)) {
13117 return -TARGET_EFAULT
;
13119 ret
= get_errno(safe_mq_timedreceive(arg1
, p
, arg3
,
13121 if (!is_error(ret
) && host_to_target_timespec64(arg5
, &ts
)) {
13122 return -TARGET_EFAULT
;
13125 ret
= get_errno(safe_mq_timedreceive(arg1
, p
, arg3
,
13128 unlock_user(p
, arg2
, arg3
);
13130 put_user_u32(prio
, arg4
);
13136 /* Not implemented for now... */
13137 /* case TARGET_NR_mq_notify: */
13140 case TARGET_NR_mq_getsetattr
:
13142 struct mq_attr posix_mq_attr_in
, posix_mq_attr_out
;
13145 copy_from_user_mq_attr(&posix_mq_attr_in
, arg2
);
13146 ret
= get_errno(mq_setattr(arg1
, &posix_mq_attr_in
,
13147 &posix_mq_attr_out
));
13148 } else if (arg3
!= 0) {
13149 ret
= get_errno(mq_getattr(arg1
, &posix_mq_attr_out
));
13151 if (ret
== 0 && arg3
!= 0) {
13152 copy_to_user_mq_attr(arg3
, &posix_mq_attr_out
);
13158 #ifdef CONFIG_SPLICE
13159 #ifdef TARGET_NR_tee
13160 case TARGET_NR_tee
:
13162 ret
= get_errno(tee(arg1
,arg2
,arg3
,arg4
));
13166 #ifdef TARGET_NR_splice
13167 case TARGET_NR_splice
:
13169 loff_t loff_in
, loff_out
;
13170 loff_t
*ploff_in
= NULL
, *ploff_out
= NULL
;
13172 if (get_user_u64(loff_in
, arg2
)) {
13173 return -TARGET_EFAULT
;
13175 ploff_in
= &loff_in
;
13178 if (get_user_u64(loff_out
, arg4
)) {
13179 return -TARGET_EFAULT
;
13181 ploff_out
= &loff_out
;
13183 ret
= get_errno(splice(arg1
, ploff_in
, arg3
, ploff_out
, arg5
, arg6
));
13185 if (put_user_u64(loff_in
, arg2
)) {
13186 return -TARGET_EFAULT
;
13190 if (put_user_u64(loff_out
, arg4
)) {
13191 return -TARGET_EFAULT
;
13197 #ifdef TARGET_NR_vmsplice
13198 case TARGET_NR_vmsplice
:
13200 struct iovec
*vec
= lock_iovec(VERIFY_READ
, arg2
, arg3
, 1);
13202 ret
= get_errno(vmsplice(arg1
, vec
, arg3
, arg4
));
13203 unlock_iovec(vec
, arg2
, arg3
, 0);
13205 ret
= -host_to_target_errno(errno
);
13210 #endif /* CONFIG_SPLICE */
13211 #ifdef CONFIG_EVENTFD
13212 #if defined(TARGET_NR_eventfd)
13213 case TARGET_NR_eventfd
:
13214 ret
= get_errno(eventfd(arg1
, 0));
13216 fd_trans_register(ret
, &target_eventfd_trans
);
13220 #if defined(TARGET_NR_eventfd2)
13221 case TARGET_NR_eventfd2
:
13223 int host_flags
= arg2
& (~(TARGET_O_NONBLOCK_MASK
| TARGET_O_CLOEXEC
));
13224 if (arg2
& TARGET_O_NONBLOCK
) {
13225 host_flags
|= O_NONBLOCK
;
13227 if (arg2
& TARGET_O_CLOEXEC
) {
13228 host_flags
|= O_CLOEXEC
;
13230 ret
= get_errno(eventfd(arg1
, host_flags
));
13232 fd_trans_register(ret
, &target_eventfd_trans
);
13237 #endif /* CONFIG_EVENTFD */
13238 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
13239 case TARGET_NR_fallocate
:
13240 #if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
13241 ret
= get_errno(fallocate(arg1
, arg2
, target_offset64(arg3
, arg4
),
13242 target_offset64(arg5
, arg6
)));
13244 ret
= get_errno(fallocate(arg1
, arg2
, arg3
, arg4
));
13248 #if defined(CONFIG_SYNC_FILE_RANGE)
13249 #if defined(TARGET_NR_sync_file_range)
13250 case TARGET_NR_sync_file_range
:
13251 #if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
13252 #if defined(TARGET_MIPS)
13253 ret
= get_errno(sync_file_range(arg1
, target_offset64(arg3
, arg4
),
13254 target_offset64(arg5
, arg6
), arg7
));
13256 ret
= get_errno(sync_file_range(arg1
, target_offset64(arg2
, arg3
),
13257 target_offset64(arg4
, arg5
), arg6
));
13258 #endif /* !TARGET_MIPS */
13260 ret
= get_errno(sync_file_range(arg1
, arg2
, arg3
, arg4
));
13264 #if defined(TARGET_NR_sync_file_range2) || \
13265 defined(TARGET_NR_arm_sync_file_range)
13266 #if defined(TARGET_NR_sync_file_range2)
13267 case TARGET_NR_sync_file_range2
:
13269 #if defined(TARGET_NR_arm_sync_file_range)
13270 case TARGET_NR_arm_sync_file_range
:
13272 /* This is like sync_file_range but the arguments are reordered */
13273 #if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
13274 ret
= get_errno(sync_file_range(arg1
, target_offset64(arg3
, arg4
),
13275 target_offset64(arg5
, arg6
), arg2
));
13277 ret
= get_errno(sync_file_range(arg1
, arg3
, arg4
, arg2
));
13282 #if defined(TARGET_NR_signalfd4)
13283 case TARGET_NR_signalfd4
:
13284 return do_signalfd4(arg1
, arg2
, arg4
);
13286 #if defined(TARGET_NR_signalfd)
13287 case TARGET_NR_signalfd
:
13288 return do_signalfd4(arg1
, arg2
, 0);
13290 #if defined(CONFIG_EPOLL)
13291 #if defined(TARGET_NR_epoll_create)
13292 case TARGET_NR_epoll_create
:
13293 return get_errno(epoll_create(arg1
));
13295 #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
13296 case TARGET_NR_epoll_create1
:
13297 return get_errno(epoll_create1(target_to_host_bitmask(arg1
, fcntl_flags_tbl
)));
13299 #if defined(TARGET_NR_epoll_ctl)
13300 case TARGET_NR_epoll_ctl
:
13302 struct epoll_event ep
;
13303 struct epoll_event
*epp
= 0;
13305 if (arg2
!= EPOLL_CTL_DEL
) {
13306 struct target_epoll_event
*target_ep
;
13307 if (!lock_user_struct(VERIFY_READ
, target_ep
, arg4
, 1)) {
13308 return -TARGET_EFAULT
;
13310 ep
.events
= tswap32(target_ep
->events
);
13312 * The epoll_data_t union is just opaque data to the kernel,
13313 * so we transfer all 64 bits across and need not worry what
13314 * actual data type it is.
13316 ep
.data
.u64
= tswap64(target_ep
->data
.u64
);
13317 unlock_user_struct(target_ep
, arg4
, 0);
13320 * before kernel 2.6.9, EPOLL_CTL_DEL operation required a
13321 * non-null pointer, even though this argument is ignored.
13326 return get_errno(epoll_ctl(arg1
, arg2
, arg3
, epp
));
13330 #if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
13331 #if defined(TARGET_NR_epoll_wait)
13332 case TARGET_NR_epoll_wait
:
13334 #if defined(TARGET_NR_epoll_pwait)
13335 case TARGET_NR_epoll_pwait
:
13338 struct target_epoll_event
*target_ep
;
13339 struct epoll_event
*ep
;
13341 int maxevents
= arg3
;
13342 int timeout
= arg4
;
13344 if (maxevents
<= 0 || maxevents
> TARGET_EP_MAX_EVENTS
) {
13345 return -TARGET_EINVAL
;
13348 target_ep
= lock_user(VERIFY_WRITE
, arg2
,
13349 maxevents
* sizeof(struct target_epoll_event
), 1);
13351 return -TARGET_EFAULT
;
13354 ep
= g_try_new(struct epoll_event
, maxevents
);
13356 unlock_user(target_ep
, arg2
, 0);
13357 return -TARGET_ENOMEM
;
13361 #if defined(TARGET_NR_epoll_pwait)
13362 case TARGET_NR_epoll_pwait
:
13364 sigset_t
*set
= NULL
;
13367 ret
= process_sigsuspend_mask(&set
, arg5
, arg6
);
13373 ret
= get_errno(safe_epoll_pwait(epfd
, ep
, maxevents
, timeout
,
13374 set
, SIGSET_T_SIZE
));
13377 finish_sigsuspend_mask(ret
);
13382 #if defined(TARGET_NR_epoll_wait)
13383 case TARGET_NR_epoll_wait
:
13384 ret
= get_errno(safe_epoll_pwait(epfd
, ep
, maxevents
, timeout
,
13389 ret
= -TARGET_ENOSYS
;
13391 if (!is_error(ret
)) {
13393 for (i
= 0; i
< ret
; i
++) {
13394 target_ep
[i
].events
= tswap32(ep
[i
].events
);
13395 target_ep
[i
].data
.u64
= tswap64(ep
[i
].data
.u64
);
13397 unlock_user(target_ep
, arg2
,
13398 ret
* sizeof(struct target_epoll_event
));
13400 unlock_user(target_ep
, arg2
, 0);
13407 #ifdef TARGET_NR_prlimit64
13408 case TARGET_NR_prlimit64
:
13410 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
13411 struct target_rlimit64
*target_rnew
, *target_rold
;
13412 struct host_rlimit64 rnew
, rold
, *rnewp
= 0;
13413 int resource
= target_to_host_resource(arg2
);
13415 if (arg3
&& (resource
!= RLIMIT_AS
&&
13416 resource
!= RLIMIT_DATA
&&
13417 resource
!= RLIMIT_STACK
)) {
13418 if (!lock_user_struct(VERIFY_READ
, target_rnew
, arg3
, 1)) {
13419 return -TARGET_EFAULT
;
13421 __get_user(rnew
.rlim_cur
, &target_rnew
->rlim_cur
);
13422 __get_user(rnew
.rlim_max
, &target_rnew
->rlim_max
);
13423 unlock_user_struct(target_rnew
, arg3
, 0);
13427 ret
= get_errno(sys_prlimit64(arg1
, resource
, rnewp
, arg4
? &rold
: 0));
13428 if (!is_error(ret
) && arg4
) {
13429 if (!lock_user_struct(VERIFY_WRITE
, target_rold
, arg4
, 1)) {
13430 return -TARGET_EFAULT
;
13432 __put_user(rold
.rlim_cur
, &target_rold
->rlim_cur
);
13433 __put_user(rold
.rlim_max
, &target_rold
->rlim_max
);
13434 unlock_user_struct(target_rold
, arg4
, 1);
13439 #ifdef TARGET_NR_gethostname
13440 case TARGET_NR_gethostname
:
13442 char *name
= lock_user(VERIFY_WRITE
, arg1
, arg2
, 0);
13444 ret
= get_errno(gethostname(name
, arg2
));
13445 unlock_user(name
, arg1
, arg2
);
13447 ret
= -TARGET_EFAULT
;
13452 #ifdef TARGET_NR_atomic_cmpxchg_32
13453 case TARGET_NR_atomic_cmpxchg_32
:
13455 /* should use start_exclusive from main.c */
13456 abi_ulong mem_value
;
13457 if (get_user_u32(mem_value
, arg6
)) {
13458 target_siginfo_t info
;
13459 info
.si_signo
= SIGSEGV
;
13461 info
.si_code
= TARGET_SEGV_MAPERR
;
13462 info
._sifields
._sigfault
._addr
= arg6
;
13463 queue_signal(cpu_env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
13467 if (mem_value
== arg2
)
13468 put_user_u32(arg1
, arg6
);
13472 #ifdef TARGET_NR_atomic_barrier
13473 case TARGET_NR_atomic_barrier
:
13474 /* Like the kernel implementation and the
13475 qemu arm barrier, no-op this? */
13479 #ifdef TARGET_NR_timer_create
13480 case TARGET_NR_timer_create
:
13482 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
13484 struct sigevent host_sevp
= { {0}, }, *phost_sevp
= NULL
;
13487 int timer_index
= next_free_host_timer();
13489 if (timer_index
< 0) {
13490 ret
= -TARGET_EAGAIN
;
13492 timer_t
*phtimer
= g_posix_timers
+ timer_index
;
13495 phost_sevp
= &host_sevp
;
13496 ret
= target_to_host_sigevent(phost_sevp
, arg2
);
13498 free_host_timer_slot(timer_index
);
13503 ret
= get_errno(timer_create(clkid
, phost_sevp
, phtimer
));
13505 free_host_timer_slot(timer_index
);
13507 if (put_user(TIMER_MAGIC
| timer_index
, arg3
, target_timer_t
)) {
13508 timer_delete(*phtimer
);
13509 free_host_timer_slot(timer_index
);
13510 return -TARGET_EFAULT
;
13518 #ifdef TARGET_NR_timer_settime
13519 case TARGET_NR_timer_settime
:
13521 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
13522 * struct itimerspec * old_value */
13523 target_timer_t timerid
= get_timer_id(arg1
);
13527 } else if (arg3
== 0) {
13528 ret
= -TARGET_EINVAL
;
13530 timer_t htimer
= g_posix_timers
[timerid
];
13531 struct itimerspec hspec_new
= {{0},}, hspec_old
= {{0},};
13533 if (target_to_host_itimerspec(&hspec_new
, arg3
)) {
13534 return -TARGET_EFAULT
;
13537 timer_settime(htimer
, arg2
, &hspec_new
, &hspec_old
));
13538 if (arg4
&& host_to_target_itimerspec(arg4
, &hspec_old
)) {
13539 return -TARGET_EFAULT
;
13546 #ifdef TARGET_NR_timer_settime64
13547 case TARGET_NR_timer_settime64
:
13549 target_timer_t timerid
= get_timer_id(arg1
);
13553 } else if (arg3
== 0) {
13554 ret
= -TARGET_EINVAL
;
13556 timer_t htimer
= g_posix_timers
[timerid
];
13557 struct itimerspec hspec_new
= {{0},}, hspec_old
= {{0},};
13559 if (target_to_host_itimerspec64(&hspec_new
, arg3
)) {
13560 return -TARGET_EFAULT
;
13563 timer_settime(htimer
, arg2
, &hspec_new
, &hspec_old
));
13564 if (arg4
&& host_to_target_itimerspec64(arg4
, &hspec_old
)) {
13565 return -TARGET_EFAULT
;
13572 #ifdef TARGET_NR_timer_gettime
13573 case TARGET_NR_timer_gettime
:
13575 /* args: timer_t timerid, struct itimerspec *curr_value */
13576 target_timer_t timerid
= get_timer_id(arg1
);
13580 } else if (!arg2
) {
13581 ret
= -TARGET_EFAULT
;
13583 timer_t htimer
= g_posix_timers
[timerid
];
13584 struct itimerspec hspec
;
13585 ret
= get_errno(timer_gettime(htimer
, &hspec
));
13587 if (host_to_target_itimerspec(arg2
, &hspec
)) {
13588 ret
= -TARGET_EFAULT
;
13595 #ifdef TARGET_NR_timer_gettime64
13596 case TARGET_NR_timer_gettime64
:
13598 /* args: timer_t timerid, struct itimerspec64 *curr_value */
13599 target_timer_t timerid
= get_timer_id(arg1
);
13603 } else if (!arg2
) {
13604 ret
= -TARGET_EFAULT
;
13606 timer_t htimer
= g_posix_timers
[timerid
];
13607 struct itimerspec hspec
;
13608 ret
= get_errno(timer_gettime(htimer
, &hspec
));
13610 if (host_to_target_itimerspec64(arg2
, &hspec
)) {
13611 ret
= -TARGET_EFAULT
;
13618 #ifdef TARGET_NR_timer_getoverrun
13619 case TARGET_NR_timer_getoverrun
:
13621 /* args: timer_t timerid */
13622 target_timer_t timerid
= get_timer_id(arg1
);
13627 timer_t htimer
= g_posix_timers
[timerid
];
13628 ret
= get_errno(timer_getoverrun(htimer
));
13634 #ifdef TARGET_NR_timer_delete
13635 case TARGET_NR_timer_delete
:
13637 /* args: timer_t timerid */
13638 target_timer_t timerid
= get_timer_id(arg1
);
13643 timer_t htimer
= g_posix_timers
[timerid
];
13644 ret
= get_errno(timer_delete(htimer
));
13645 free_host_timer_slot(timerid
);
13651 #if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
13652 case TARGET_NR_timerfd_create
:
13653 ret
= get_errno(timerfd_create(arg1
,
13654 target_to_host_bitmask(arg2
, fcntl_flags_tbl
)));
13656 fd_trans_register(ret
, &target_timerfd_trans
);
13661 #if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
13662 case TARGET_NR_timerfd_gettime
:
13664 struct itimerspec its_curr
;
13666 ret
= get_errno(timerfd_gettime(arg1
, &its_curr
));
13668 if (arg2
&& host_to_target_itimerspec(arg2
, &its_curr
)) {
13669 return -TARGET_EFAULT
;
13675 #if defined(TARGET_NR_timerfd_gettime64) && defined(CONFIG_TIMERFD)
13676 case TARGET_NR_timerfd_gettime64
:
13678 struct itimerspec its_curr
;
13680 ret
= get_errno(timerfd_gettime(arg1
, &its_curr
));
13682 if (arg2
&& host_to_target_itimerspec64(arg2
, &its_curr
)) {
13683 return -TARGET_EFAULT
;
13689 #if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
13690 case TARGET_NR_timerfd_settime
:
13692 struct itimerspec its_new
, its_old
, *p_new
;
13695 if (target_to_host_itimerspec(&its_new
, arg3
)) {
13696 return -TARGET_EFAULT
;
13703 ret
= get_errno(timerfd_settime(arg1
, arg2
, p_new
, &its_old
));
13705 if (arg4
&& host_to_target_itimerspec(arg4
, &its_old
)) {
13706 return -TARGET_EFAULT
;
13712 #if defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)
13713 case TARGET_NR_timerfd_settime64
:
13715 struct itimerspec its_new
, its_old
, *p_new
;
13718 if (target_to_host_itimerspec64(&its_new
, arg3
)) {
13719 return -TARGET_EFAULT
;
13726 ret
= get_errno(timerfd_settime(arg1
, arg2
, p_new
, &its_old
));
13728 if (arg4
&& host_to_target_itimerspec64(arg4
, &its_old
)) {
13729 return -TARGET_EFAULT
;
13735 #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
13736 case TARGET_NR_ioprio_get
:
13737 return get_errno(ioprio_get(arg1
, arg2
));
13740 #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
13741 case TARGET_NR_ioprio_set
:
13742 return get_errno(ioprio_set(arg1
, arg2
, arg3
));
13745 #if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
13746 case TARGET_NR_setns
:
13747 return get_errno(setns(arg1
, arg2
));
13749 #if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
13750 case TARGET_NR_unshare
:
13751 return get_errno(unshare(arg1
));
13753 #if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
13754 case TARGET_NR_kcmp
:
13755 return get_errno(kcmp(arg1
, arg2
, arg3
, arg4
, arg5
));
13757 #ifdef TARGET_NR_swapcontext
13758 case TARGET_NR_swapcontext
:
13759 /* PowerPC specific. */
13760 return do_swapcontext(cpu_env
, arg1
, arg2
, arg3
);
13762 #ifdef TARGET_NR_memfd_create
13763 case TARGET_NR_memfd_create
:
13764 p
= lock_user_string(arg1
);
13766 return -TARGET_EFAULT
;
13768 ret
= get_errno(memfd_create(p
, arg2
));
13769 fd_trans_unregister(ret
);
13770 unlock_user(p
, arg1
, 0);
13773 #if defined TARGET_NR_membarrier && defined __NR_membarrier
13774 case TARGET_NR_membarrier
:
13775 return get_errno(membarrier(arg1
, arg2
));
13778 #if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
13779 case TARGET_NR_copy_file_range
:
13781 loff_t inoff
, outoff
;
13782 loff_t
*pinoff
= NULL
, *poutoff
= NULL
;
13785 if (get_user_u64(inoff
, arg2
)) {
13786 return -TARGET_EFAULT
;
13791 if (get_user_u64(outoff
, arg4
)) {
13792 return -TARGET_EFAULT
;
13796 /* Do not sign-extend the count parameter. */
13797 ret
= get_errno(safe_copy_file_range(arg1
, pinoff
, arg3
, poutoff
,
13798 (abi_ulong
)arg5
, arg6
));
13799 if (!is_error(ret
) && ret
> 0) {
13801 if (put_user_u64(inoff
, arg2
)) {
13802 return -TARGET_EFAULT
;
13806 if (put_user_u64(outoff
, arg4
)) {
13807 return -TARGET_EFAULT
;
13815 #if defined(TARGET_NR_pivot_root)
13816 case TARGET_NR_pivot_root
:
13819 p
= lock_user_string(arg1
); /* new_root */
13820 p2
= lock_user_string(arg2
); /* put_old */
13822 ret
= -TARGET_EFAULT
;
13824 ret
= get_errno(pivot_root(p
, p2
));
13826 unlock_user(p2
, arg2
, 0);
13827 unlock_user(p
, arg1
, 0);
13832 #if defined(TARGET_NR_riscv_hwprobe)
13833 case TARGET_NR_riscv_hwprobe
:
13834 return do_riscv_hwprobe(cpu_env
, arg1
, arg2
, arg3
, arg4
, arg5
);
13838 qemu_log_mask(LOG_UNIMP
, "Unsupported syscall: %d\n", num
);
13839 return -TARGET_ENOSYS
;
13844 abi_long
do_syscall(CPUArchState
*cpu_env
, int num
, abi_long arg1
,
13845 abi_long arg2
, abi_long arg3
, abi_long arg4
,
13846 abi_long arg5
, abi_long arg6
, abi_long arg7
,
13849 CPUState
*cpu
= env_cpu(cpu_env
);
13852 #ifdef DEBUG_ERESTARTSYS
13853 /* Debug-only code for exercising the syscall-restart code paths
13854 * in the per-architecture cpu main loops: restart every syscall
13855 * the guest makes once before letting it through.
13861 return -QEMU_ERESTARTSYS
;
13866 record_syscall_start(cpu
, num
, arg1
,
13867 arg2
, arg3
, arg4
, arg5
, arg6
, arg7
, arg8
);
13869 if (unlikely(qemu_loglevel_mask(LOG_STRACE
))) {
13870 print_syscall(cpu_env
, num
, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
13873 ret
= do_syscall1(cpu_env
, num
, arg1
, arg2
, arg3
, arg4
,
13874 arg5
, arg6
, arg7
, arg8
);
13876 if (unlikely(qemu_loglevel_mask(LOG_STRACE
))) {
13877 print_syscall_ret(cpu_env
, num
, ret
, arg1
, arg2
,
13878 arg3
, arg4
, arg5
, arg6
);
13881 record_syscall_return(cpu
, num
, ret
);