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1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #define _ATFILE_SOURCE
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <elf.h>
25 #include <endian.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <time.h>
30 #include <limits.h>
31 #include <sys/types.h>
32 #include <sys/ipc.h>
33 #include <sys/msg.h>
34 #include <sys/wait.h>
35 #include <sys/time.h>
36 #include <sys/stat.h>
37 #include <sys/mount.h>
38 #include <sys/prctl.h>
39 #include <sys/resource.h>
40 #include <sys/mman.h>
41 #include <sys/swap.h>
42 #include <signal.h>
43 #include <sched.h>
44 #ifdef __ia64__
45 int __clone2(int (*fn)(void *), void *child_stack_base,
46 size_t stack_size, int flags, void *arg, ...);
47 #endif
48 #include <sys/socket.h>
49 #include <sys/un.h>
50 #include <sys/uio.h>
51 #include <sys/poll.h>
52 #include <sys/times.h>
53 #include <sys/shm.h>
54 #include <sys/sem.h>
55 #include <sys/statfs.h>
56 #include <utime.h>
57 #include <sys/sysinfo.h>
58 #include <sys/utsname.h>
59 //#include <sys/user.h>
60 #include <netinet/ip.h>
61 #include <netinet/tcp.h>
62 #include <qemu-common.h>
63 #ifdef TARGET_GPROF
64 #include <sys/gmon.h>
65 #endif
66 #ifdef CONFIG_EVENTFD
67 #include <sys/eventfd.h>
68 #endif
69
70 #define termios host_termios
71 #define winsize host_winsize
72 #define termio host_termio
73 #define sgttyb host_sgttyb /* same as target */
74 #define tchars host_tchars /* same as target */
75 #define ltchars host_ltchars /* same as target */
76
77 #include <linux/termios.h>
78 #include <linux/unistd.h>
79 #include <linux/utsname.h>
80 #include <linux/cdrom.h>
81 #include <linux/hdreg.h>
82 #include <linux/soundcard.h>
83 #include <linux/kd.h>
84 #include <linux/mtio.h>
85 #include <linux/fs.h>
86 #include <linux/fiemap.h>
87 #include <linux/fb.h>
88 #include <linux/vt.h>
89 #include "linux_loop.h"
90 #include "cpu-uname.h"
91
92 #include "qemu.h"
93 #include "qemu-common.h"
94
95 #if defined(CONFIG_USE_NPTL)
96 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
97 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
98 #else
99 /* XXX: Hardcode the above values. */
100 #define CLONE_NPTL_FLAGS2 0
101 #endif
102
103 //#define DEBUG
104
105 //#include <linux/msdos_fs.h>
106 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
107 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
108
109
110 #undef _syscall0
111 #undef _syscall1
112 #undef _syscall2
113 #undef _syscall3
114 #undef _syscall4
115 #undef _syscall5
116 #undef _syscall6
117
118 #define _syscall0(type,name) \
119 static type name (void) \
120 { \
121 return syscall(__NR_##name); \
122 }
123
124 #define _syscall1(type,name,type1,arg1) \
125 static type name (type1 arg1) \
126 { \
127 return syscall(__NR_##name, arg1); \
128 }
129
130 #define _syscall2(type,name,type1,arg1,type2,arg2) \
131 static type name (type1 arg1,type2 arg2) \
132 { \
133 return syscall(__NR_##name, arg1, arg2); \
134 }
135
136 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
137 static type name (type1 arg1,type2 arg2,type3 arg3) \
138 { \
139 return syscall(__NR_##name, arg1, arg2, arg3); \
140 }
141
142 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
143 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
144 { \
145 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
146 }
147
148 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
149 type5,arg5) \
150 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
151 { \
152 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
153 }
154
155
156 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
157 type5,arg5,type6,arg6) \
158 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
159 type6 arg6) \
160 { \
161 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
162 }
163
164
165 #define __NR_sys_uname __NR_uname
166 #define __NR_sys_faccessat __NR_faccessat
167 #define __NR_sys_fchmodat __NR_fchmodat
168 #define __NR_sys_fchownat __NR_fchownat
169 #define __NR_sys_fstatat64 __NR_fstatat64
170 #define __NR_sys_futimesat __NR_futimesat
171 #define __NR_sys_getcwd1 __NR_getcwd
172 #define __NR_sys_getdents __NR_getdents
173 #define __NR_sys_getdents64 __NR_getdents64
174 #define __NR_sys_getpriority __NR_getpriority
175 #define __NR_sys_linkat __NR_linkat
176 #define __NR_sys_mkdirat __NR_mkdirat
177 #define __NR_sys_mknodat __NR_mknodat
178 #define __NR_sys_newfstatat __NR_newfstatat
179 #define __NR_sys_openat __NR_openat
180 #define __NR_sys_readlinkat __NR_readlinkat
181 #define __NR_sys_renameat __NR_renameat
182 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
183 #define __NR_sys_symlinkat __NR_symlinkat
184 #define __NR_sys_syslog __NR_syslog
185 #define __NR_sys_tgkill __NR_tgkill
186 #define __NR_sys_tkill __NR_tkill
187 #define __NR_sys_unlinkat __NR_unlinkat
188 #define __NR_sys_utimensat __NR_utimensat
189 #define __NR_sys_futex __NR_futex
190 #define __NR_sys_inotify_init __NR_inotify_init
191 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
192 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
193
194 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
195 #define __NR__llseek __NR_lseek
196 #endif
197
198 #ifdef __NR_gettid
199 _syscall0(int, gettid)
200 #else
201 /* This is a replacement for the host gettid() and must return a host
202 errno. */
203 static int gettid(void) {
204 return -ENOSYS;
205 }
206 #endif
207 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
208 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
209 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
210 #endif
211 _syscall2(int, sys_getpriority, int, which, int, who);
212 #if defined(TARGET_NR__llseek) && defined(__NR_llseek)
213 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
214 loff_t *, res, uint, wh);
215 #endif
216 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
217 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
218 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
219 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
220 #endif
221 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
222 _syscall2(int,sys_tkill,int,tid,int,sig)
223 #endif
224 #ifdef __NR_exit_group
225 _syscall1(int,exit_group,int,error_code)
226 #endif
227 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
228 _syscall1(int,set_tid_address,int *,tidptr)
229 #endif
230 #if defined(CONFIG_USE_NPTL)
231 #if defined(TARGET_NR_futex) && defined(__NR_futex)
232 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
233 const struct timespec *,timeout,int *,uaddr2,int,val3)
234 #endif
235 #endif
236
237 static bitmask_transtbl fcntl_flags_tbl[] = {
238 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
239 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
240 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
241 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
242 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
243 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
244 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
245 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
246 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
247 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
248 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
249 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
250 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
251 #if defined(O_DIRECT)
252 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
253 #endif
254 { 0, 0, 0, 0 }
255 };
256
257 #define COPY_UTSNAME_FIELD(dest, src) \
258 do { \
259 /* __NEW_UTS_LEN doesn't include terminating null */ \
260 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
261 (dest)[__NEW_UTS_LEN] = '\0'; \
262 } while (0)
263
264 static int sys_uname(struct new_utsname *buf)
265 {
266 struct utsname uts_buf;
267
268 if (uname(&uts_buf) < 0)
269 return (-1);
270
271 /*
272 * Just in case these have some differences, we
273 * translate utsname to new_utsname (which is the
274 * struct linux kernel uses).
275 */
276
277 bzero(buf, sizeof (*buf));
278 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
279 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
280 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
281 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
282 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
283 #ifdef _GNU_SOURCE
284 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
285 #endif
286 return (0);
287
288 #undef COPY_UTSNAME_FIELD
289 }
290
291 static int sys_getcwd1(char *buf, size_t size)
292 {
293 if (getcwd(buf, size) == NULL) {
294 /* getcwd() sets errno */
295 return (-1);
296 }
297 return strlen(buf)+1;
298 }
299
300 #ifdef CONFIG_ATFILE
301 /*
302 * Host system seems to have atfile syscall stubs available. We
303 * now enable them one by one as specified by target syscall_nr.h.
304 */
305
306 #ifdef TARGET_NR_faccessat
307 static int sys_faccessat(int dirfd, const char *pathname, int mode)
308 {
309 return (faccessat(dirfd, pathname, mode, 0));
310 }
311 #endif
312 #ifdef TARGET_NR_fchmodat
313 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
314 {
315 return (fchmodat(dirfd, pathname, mode, 0));
316 }
317 #endif
318 #if defined(TARGET_NR_fchownat) && defined(USE_UID16)
319 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
320 gid_t group, int flags)
321 {
322 return (fchownat(dirfd, pathname, owner, group, flags));
323 }
324 #endif
325 #ifdef __NR_fstatat64
326 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
327 int flags)
328 {
329 return (fstatat(dirfd, pathname, buf, flags));
330 }
331 #endif
332 #ifdef __NR_newfstatat
333 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
334 int flags)
335 {
336 return (fstatat(dirfd, pathname, buf, flags));
337 }
338 #endif
339 #ifdef TARGET_NR_futimesat
340 static int sys_futimesat(int dirfd, const char *pathname,
341 const struct timeval times[2])
342 {
343 return (futimesat(dirfd, pathname, times));
344 }
345 #endif
346 #ifdef TARGET_NR_linkat
347 static int sys_linkat(int olddirfd, const char *oldpath,
348 int newdirfd, const char *newpath, int flags)
349 {
350 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
351 }
352 #endif
353 #ifdef TARGET_NR_mkdirat
354 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
355 {
356 return (mkdirat(dirfd, pathname, mode));
357 }
358 #endif
359 #ifdef TARGET_NR_mknodat
360 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
361 dev_t dev)
362 {
363 return (mknodat(dirfd, pathname, mode, dev));
364 }
365 #endif
366 #ifdef TARGET_NR_openat
367 static int sys_openat(int dirfd, const char *pathname, int flags, ...)
368 {
369 /*
370 * open(2) has extra parameter 'mode' when called with
371 * flag O_CREAT.
372 */
373 if ((flags & O_CREAT) != 0) {
374 va_list ap;
375 mode_t mode;
376
377 /*
378 * Get the 'mode' parameter and translate it to
379 * host bits.
380 */
381 va_start(ap, flags);
382 mode = va_arg(ap, mode_t);
383 mode = target_to_host_bitmask(mode, fcntl_flags_tbl);
384 va_end(ap);
385
386 return (openat(dirfd, pathname, flags, mode));
387 }
388 return (openat(dirfd, pathname, flags));
389 }
390 #endif
391 #ifdef TARGET_NR_readlinkat
392 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
393 {
394 return (readlinkat(dirfd, pathname, buf, bufsiz));
395 }
396 #endif
397 #ifdef TARGET_NR_renameat
398 static int sys_renameat(int olddirfd, const char *oldpath,
399 int newdirfd, const char *newpath)
400 {
401 return (renameat(olddirfd, oldpath, newdirfd, newpath));
402 }
403 #endif
404 #ifdef TARGET_NR_symlinkat
405 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
406 {
407 return (symlinkat(oldpath, newdirfd, newpath));
408 }
409 #endif
410 #ifdef TARGET_NR_unlinkat
411 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
412 {
413 return (unlinkat(dirfd, pathname, flags));
414 }
415 #endif
416 #else /* !CONFIG_ATFILE */
417
418 /*
419 * Try direct syscalls instead
420 */
421 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
422 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
423 #endif
424 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
425 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
426 #endif
427 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
428 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
429 uid_t,owner,gid_t,group,int,flags)
430 #endif
431 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
432 defined(__NR_fstatat64)
433 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
434 struct stat *,buf,int,flags)
435 #endif
436 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
437 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
438 const struct timeval *,times)
439 #endif
440 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
441 defined(__NR_newfstatat)
442 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
443 struct stat *,buf,int,flags)
444 #endif
445 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
446 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
447 int,newdirfd,const char *,newpath,int,flags)
448 #endif
449 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
450 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
451 #endif
452 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
453 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
454 mode_t,mode,dev_t,dev)
455 #endif
456 #if defined(TARGET_NR_openat) && defined(__NR_openat)
457 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
458 #endif
459 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
460 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
461 char *,buf,size_t,bufsize)
462 #endif
463 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
464 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
465 int,newdirfd,const char *,newpath)
466 #endif
467 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
468 _syscall3(int,sys_symlinkat,const char *,oldpath,
469 int,newdirfd,const char *,newpath)
470 #endif
471 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
472 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
473 #endif
474
475 #endif /* CONFIG_ATFILE */
476
477 #ifdef CONFIG_UTIMENSAT
478 static int sys_utimensat(int dirfd, const char *pathname,
479 const struct timespec times[2], int flags)
480 {
481 if (pathname == NULL)
482 return futimens(dirfd, times);
483 else
484 return utimensat(dirfd, pathname, times, flags);
485 }
486 #else
487 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
488 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
489 const struct timespec *,tsp,int,flags)
490 #endif
491 #endif /* CONFIG_UTIMENSAT */
492
493 #ifdef CONFIG_INOTIFY
494 #include <sys/inotify.h>
495
496 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
497 static int sys_inotify_init(void)
498 {
499 return (inotify_init());
500 }
501 #endif
502 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
503 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
504 {
505 return (inotify_add_watch(fd, pathname, mask));
506 }
507 #endif
508 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
509 static int sys_inotify_rm_watch(int fd, int32_t wd)
510 {
511 return (inotify_rm_watch(fd, wd));
512 }
513 #endif
514 #ifdef CONFIG_INOTIFY1
515 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
516 static int sys_inotify_init1(int flags)
517 {
518 return (inotify_init1(flags));
519 }
520 #endif
521 #endif
522 #else
523 /* Userspace can usually survive runtime without inotify */
524 #undef TARGET_NR_inotify_init
525 #undef TARGET_NR_inotify_init1
526 #undef TARGET_NR_inotify_add_watch
527 #undef TARGET_NR_inotify_rm_watch
528 #endif /* CONFIG_INOTIFY */
529
530
531 extern int personality(int);
532 extern int flock(int, int);
533 extern int setfsuid(int);
534 extern int setfsgid(int);
535 extern int setgroups(int, gid_t *);
536
537 #define ERRNO_TABLE_SIZE 1200
538
539 /* target_to_host_errno_table[] is initialized from
540 * host_to_target_errno_table[] in syscall_init(). */
541 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
542 };
543
544 /*
545 * This list is the union of errno values overridden in asm-<arch>/errno.h
546 * minus the errnos that are not actually generic to all archs.
547 */
548 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
549 [EIDRM] = TARGET_EIDRM,
550 [ECHRNG] = TARGET_ECHRNG,
551 [EL2NSYNC] = TARGET_EL2NSYNC,
552 [EL3HLT] = TARGET_EL3HLT,
553 [EL3RST] = TARGET_EL3RST,
554 [ELNRNG] = TARGET_ELNRNG,
555 [EUNATCH] = TARGET_EUNATCH,
556 [ENOCSI] = TARGET_ENOCSI,
557 [EL2HLT] = TARGET_EL2HLT,
558 [EDEADLK] = TARGET_EDEADLK,
559 [ENOLCK] = TARGET_ENOLCK,
560 [EBADE] = TARGET_EBADE,
561 [EBADR] = TARGET_EBADR,
562 [EXFULL] = TARGET_EXFULL,
563 [ENOANO] = TARGET_ENOANO,
564 [EBADRQC] = TARGET_EBADRQC,
565 [EBADSLT] = TARGET_EBADSLT,
566 [EBFONT] = TARGET_EBFONT,
567 [ENOSTR] = TARGET_ENOSTR,
568 [ENODATA] = TARGET_ENODATA,
569 [ETIME] = TARGET_ETIME,
570 [ENOSR] = TARGET_ENOSR,
571 [ENONET] = TARGET_ENONET,
572 [ENOPKG] = TARGET_ENOPKG,
573 [EREMOTE] = TARGET_EREMOTE,
574 [ENOLINK] = TARGET_ENOLINK,
575 [EADV] = TARGET_EADV,
576 [ESRMNT] = TARGET_ESRMNT,
577 [ECOMM] = TARGET_ECOMM,
578 [EPROTO] = TARGET_EPROTO,
579 [EDOTDOT] = TARGET_EDOTDOT,
580 [EMULTIHOP] = TARGET_EMULTIHOP,
581 [EBADMSG] = TARGET_EBADMSG,
582 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
583 [EOVERFLOW] = TARGET_EOVERFLOW,
584 [ENOTUNIQ] = TARGET_ENOTUNIQ,
585 [EBADFD] = TARGET_EBADFD,
586 [EREMCHG] = TARGET_EREMCHG,
587 [ELIBACC] = TARGET_ELIBACC,
588 [ELIBBAD] = TARGET_ELIBBAD,
589 [ELIBSCN] = TARGET_ELIBSCN,
590 [ELIBMAX] = TARGET_ELIBMAX,
591 [ELIBEXEC] = TARGET_ELIBEXEC,
592 [EILSEQ] = TARGET_EILSEQ,
593 [ENOSYS] = TARGET_ENOSYS,
594 [ELOOP] = TARGET_ELOOP,
595 [ERESTART] = TARGET_ERESTART,
596 [ESTRPIPE] = TARGET_ESTRPIPE,
597 [ENOTEMPTY] = TARGET_ENOTEMPTY,
598 [EUSERS] = TARGET_EUSERS,
599 [ENOTSOCK] = TARGET_ENOTSOCK,
600 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
601 [EMSGSIZE] = TARGET_EMSGSIZE,
602 [EPROTOTYPE] = TARGET_EPROTOTYPE,
603 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
604 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
605 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
606 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
607 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
608 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
609 [EADDRINUSE] = TARGET_EADDRINUSE,
610 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
611 [ENETDOWN] = TARGET_ENETDOWN,
612 [ENETUNREACH] = TARGET_ENETUNREACH,
613 [ENETRESET] = TARGET_ENETRESET,
614 [ECONNABORTED] = TARGET_ECONNABORTED,
615 [ECONNRESET] = TARGET_ECONNRESET,
616 [ENOBUFS] = TARGET_ENOBUFS,
617 [EISCONN] = TARGET_EISCONN,
618 [ENOTCONN] = TARGET_ENOTCONN,
619 [EUCLEAN] = TARGET_EUCLEAN,
620 [ENOTNAM] = TARGET_ENOTNAM,
621 [ENAVAIL] = TARGET_ENAVAIL,
622 [EISNAM] = TARGET_EISNAM,
623 [EREMOTEIO] = TARGET_EREMOTEIO,
624 [ESHUTDOWN] = TARGET_ESHUTDOWN,
625 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
626 [ETIMEDOUT] = TARGET_ETIMEDOUT,
627 [ECONNREFUSED] = TARGET_ECONNREFUSED,
628 [EHOSTDOWN] = TARGET_EHOSTDOWN,
629 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
630 [EALREADY] = TARGET_EALREADY,
631 [EINPROGRESS] = TARGET_EINPROGRESS,
632 [ESTALE] = TARGET_ESTALE,
633 [ECANCELED] = TARGET_ECANCELED,
634 [ENOMEDIUM] = TARGET_ENOMEDIUM,
635 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
636 #ifdef ENOKEY
637 [ENOKEY] = TARGET_ENOKEY,
638 #endif
639 #ifdef EKEYEXPIRED
640 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
641 #endif
642 #ifdef EKEYREVOKED
643 [EKEYREVOKED] = TARGET_EKEYREVOKED,
644 #endif
645 #ifdef EKEYREJECTED
646 [EKEYREJECTED] = TARGET_EKEYREJECTED,
647 #endif
648 #ifdef EOWNERDEAD
649 [EOWNERDEAD] = TARGET_EOWNERDEAD,
650 #endif
651 #ifdef ENOTRECOVERABLE
652 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
653 #endif
654 };
655
656 static inline int host_to_target_errno(int err)
657 {
658 if(host_to_target_errno_table[err])
659 return host_to_target_errno_table[err];
660 return err;
661 }
662
663 static inline int target_to_host_errno(int err)
664 {
665 if (target_to_host_errno_table[err])
666 return target_to_host_errno_table[err];
667 return err;
668 }
669
670 static inline abi_long get_errno(abi_long ret)
671 {
672 if (ret == -1)
673 return -host_to_target_errno(errno);
674 else
675 return ret;
676 }
677
678 static inline int is_error(abi_long ret)
679 {
680 return (abi_ulong)ret >= (abi_ulong)(-4096);
681 }
682
683 char *target_strerror(int err)
684 {
685 return strerror(target_to_host_errno(err));
686 }
687
688 static abi_ulong target_brk;
689 static abi_ulong target_original_brk;
690
691 void target_set_brk(abi_ulong new_brk)
692 {
693 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
694 }
695
696 /* do_brk() must return target values and target errnos. */
697 abi_long do_brk(abi_ulong new_brk)
698 {
699 abi_ulong brk_page;
700 abi_long mapped_addr;
701 int new_alloc_size;
702
703 if (!new_brk)
704 return target_brk;
705 if (new_brk < target_original_brk)
706 return target_brk;
707
708 brk_page = HOST_PAGE_ALIGN(target_brk);
709
710 /* If the new brk is less than this, set it and we're done... */
711 if (new_brk < brk_page) {
712 target_brk = new_brk;
713 return target_brk;
714 }
715
716 /* We need to allocate more memory after the brk... */
717 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
718 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
719 PROT_READ|PROT_WRITE,
720 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
721
722 #if defined(TARGET_ALPHA)
723 /* We (partially) emulate OSF/1 on Alpha, which requires we
724 return a proper errno, not an unchanged brk value. */
725 if (is_error(mapped_addr)) {
726 return -TARGET_ENOMEM;
727 }
728 #endif
729
730 if (!is_error(mapped_addr)) {
731 target_brk = new_brk;
732 }
733 return target_brk;
734 }
735
736 static inline abi_long copy_from_user_fdset(fd_set *fds,
737 abi_ulong target_fds_addr,
738 int n)
739 {
740 int i, nw, j, k;
741 abi_ulong b, *target_fds;
742
743 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
744 if (!(target_fds = lock_user(VERIFY_READ,
745 target_fds_addr,
746 sizeof(abi_ulong) * nw,
747 1)))
748 return -TARGET_EFAULT;
749
750 FD_ZERO(fds);
751 k = 0;
752 for (i = 0; i < nw; i++) {
753 /* grab the abi_ulong */
754 __get_user(b, &target_fds[i]);
755 for (j = 0; j < TARGET_ABI_BITS; j++) {
756 /* check the bit inside the abi_ulong */
757 if ((b >> j) & 1)
758 FD_SET(k, fds);
759 k++;
760 }
761 }
762
763 unlock_user(target_fds, target_fds_addr, 0);
764
765 return 0;
766 }
767
768 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
769 const fd_set *fds,
770 int n)
771 {
772 int i, nw, j, k;
773 abi_long v;
774 abi_ulong *target_fds;
775
776 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
777 if (!(target_fds = lock_user(VERIFY_WRITE,
778 target_fds_addr,
779 sizeof(abi_ulong) * nw,
780 0)))
781 return -TARGET_EFAULT;
782
783 k = 0;
784 for (i = 0; i < nw; i++) {
785 v = 0;
786 for (j = 0; j < TARGET_ABI_BITS; j++) {
787 v |= ((FD_ISSET(k, fds) != 0) << j);
788 k++;
789 }
790 __put_user(v, &target_fds[i]);
791 }
792
793 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
794
795 return 0;
796 }
797
798 #if defined(__alpha__)
799 #define HOST_HZ 1024
800 #else
801 #define HOST_HZ 100
802 #endif
803
804 static inline abi_long host_to_target_clock_t(long ticks)
805 {
806 #if HOST_HZ == TARGET_HZ
807 return ticks;
808 #else
809 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
810 #endif
811 }
812
813 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
814 const struct rusage *rusage)
815 {
816 struct target_rusage *target_rusage;
817
818 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
819 return -TARGET_EFAULT;
820 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
821 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
822 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
823 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
824 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
825 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
826 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
827 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
828 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
829 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
830 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
831 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
832 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
833 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
834 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
835 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
836 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
837 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
838 unlock_user_struct(target_rusage, target_addr, 1);
839
840 return 0;
841 }
842
843 static inline rlim_t target_to_host_rlim(target_ulong target_rlim)
844 {
845 if (target_rlim == TARGET_RLIM_INFINITY)
846 return RLIM_INFINITY;
847 else
848 return tswapl(target_rlim);
849 }
850
851 static inline target_ulong host_to_target_rlim(rlim_t rlim)
852 {
853 if (rlim == RLIM_INFINITY || rlim != (target_long)rlim)
854 return TARGET_RLIM_INFINITY;
855 else
856 return tswapl(rlim);
857 }
858
859 static inline abi_long copy_from_user_timeval(struct timeval *tv,
860 abi_ulong target_tv_addr)
861 {
862 struct target_timeval *target_tv;
863
864 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
865 return -TARGET_EFAULT;
866
867 __get_user(tv->tv_sec, &target_tv->tv_sec);
868 __get_user(tv->tv_usec, &target_tv->tv_usec);
869
870 unlock_user_struct(target_tv, target_tv_addr, 0);
871
872 return 0;
873 }
874
875 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
876 const struct timeval *tv)
877 {
878 struct target_timeval *target_tv;
879
880 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
881 return -TARGET_EFAULT;
882
883 __put_user(tv->tv_sec, &target_tv->tv_sec);
884 __put_user(tv->tv_usec, &target_tv->tv_usec);
885
886 unlock_user_struct(target_tv, target_tv_addr, 1);
887
888 return 0;
889 }
890
891 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
892 #include <mqueue.h>
893
894 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
895 abi_ulong target_mq_attr_addr)
896 {
897 struct target_mq_attr *target_mq_attr;
898
899 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
900 target_mq_attr_addr, 1))
901 return -TARGET_EFAULT;
902
903 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
904 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
905 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
906 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
907
908 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
909
910 return 0;
911 }
912
913 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
914 const struct mq_attr *attr)
915 {
916 struct target_mq_attr *target_mq_attr;
917
918 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
919 target_mq_attr_addr, 0))
920 return -TARGET_EFAULT;
921
922 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
923 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
924 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
925 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
926
927 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
928
929 return 0;
930 }
931 #endif
932
933 /* do_select() must return target values and target errnos. */
934 static abi_long do_select(int n,
935 abi_ulong rfd_addr, abi_ulong wfd_addr,
936 abi_ulong efd_addr, abi_ulong target_tv_addr)
937 {
938 fd_set rfds, wfds, efds;
939 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
940 struct timeval tv, *tv_ptr;
941 abi_long ret;
942
943 if (rfd_addr) {
944 if (copy_from_user_fdset(&rfds, rfd_addr, n))
945 return -TARGET_EFAULT;
946 rfds_ptr = &rfds;
947 } else {
948 rfds_ptr = NULL;
949 }
950 if (wfd_addr) {
951 if (copy_from_user_fdset(&wfds, wfd_addr, n))
952 return -TARGET_EFAULT;
953 wfds_ptr = &wfds;
954 } else {
955 wfds_ptr = NULL;
956 }
957 if (efd_addr) {
958 if (copy_from_user_fdset(&efds, efd_addr, n))
959 return -TARGET_EFAULT;
960 efds_ptr = &efds;
961 } else {
962 efds_ptr = NULL;
963 }
964
965 if (target_tv_addr) {
966 if (copy_from_user_timeval(&tv, target_tv_addr))
967 return -TARGET_EFAULT;
968 tv_ptr = &tv;
969 } else {
970 tv_ptr = NULL;
971 }
972
973 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
974
975 if (!is_error(ret)) {
976 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
977 return -TARGET_EFAULT;
978 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
979 return -TARGET_EFAULT;
980 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
981 return -TARGET_EFAULT;
982
983 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
984 return -TARGET_EFAULT;
985 }
986
987 return ret;
988 }
989
990 static abi_long do_pipe2(int host_pipe[], int flags)
991 {
992 #ifdef CONFIG_PIPE2
993 return pipe2(host_pipe, flags);
994 #else
995 return -ENOSYS;
996 #endif
997 }
998
999 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1000 int flags, int is_pipe2)
1001 {
1002 int host_pipe[2];
1003 abi_long ret;
1004 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1005
1006 if (is_error(ret))
1007 return get_errno(ret);
1008
1009 /* Several targets have special calling conventions for the original
1010 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1011 if (!is_pipe2) {
1012 #if defined(TARGET_ALPHA)
1013 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1014 return host_pipe[0];
1015 #elif defined(TARGET_MIPS)
1016 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1017 return host_pipe[0];
1018 #elif defined(TARGET_SH4)
1019 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1020 return host_pipe[0];
1021 #endif
1022 }
1023
1024 if (put_user_s32(host_pipe[0], pipedes)
1025 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1026 return -TARGET_EFAULT;
1027 return get_errno(ret);
1028 }
1029
1030 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1031 abi_ulong target_addr,
1032 socklen_t len)
1033 {
1034 struct target_ip_mreqn *target_smreqn;
1035
1036 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1037 if (!target_smreqn)
1038 return -TARGET_EFAULT;
1039 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1040 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1041 if (len == sizeof(struct target_ip_mreqn))
1042 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex);
1043 unlock_user(target_smreqn, target_addr, 0);
1044
1045 return 0;
1046 }
1047
1048 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1049 abi_ulong target_addr,
1050 socklen_t len)
1051 {
1052 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1053 sa_family_t sa_family;
1054 struct target_sockaddr *target_saddr;
1055
1056 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1057 if (!target_saddr)
1058 return -TARGET_EFAULT;
1059
1060 sa_family = tswap16(target_saddr->sa_family);
1061
1062 /* Oops. The caller might send a incomplete sun_path; sun_path
1063 * must be terminated by \0 (see the manual page), but
1064 * unfortunately it is quite common to specify sockaddr_un
1065 * length as "strlen(x->sun_path)" while it should be
1066 * "strlen(...) + 1". We'll fix that here if needed.
1067 * Linux kernel has a similar feature.
1068 */
1069
1070 if (sa_family == AF_UNIX) {
1071 if (len < unix_maxlen && len > 0) {
1072 char *cp = (char*)target_saddr;
1073
1074 if ( cp[len-1] && !cp[len] )
1075 len++;
1076 }
1077 if (len > unix_maxlen)
1078 len = unix_maxlen;
1079 }
1080
1081 memcpy(addr, target_saddr, len);
1082 addr->sa_family = sa_family;
1083 unlock_user(target_saddr, target_addr, 0);
1084
1085 return 0;
1086 }
1087
1088 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1089 struct sockaddr *addr,
1090 socklen_t len)
1091 {
1092 struct target_sockaddr *target_saddr;
1093
1094 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1095 if (!target_saddr)
1096 return -TARGET_EFAULT;
1097 memcpy(target_saddr, addr, len);
1098 target_saddr->sa_family = tswap16(addr->sa_family);
1099 unlock_user(target_saddr, target_addr, len);
1100
1101 return 0;
1102 }
1103
1104 /* ??? Should this also swap msgh->name? */
1105 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1106 struct target_msghdr *target_msgh)
1107 {
1108 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1109 abi_long msg_controllen;
1110 abi_ulong target_cmsg_addr;
1111 struct target_cmsghdr *target_cmsg;
1112 socklen_t space = 0;
1113
1114 msg_controllen = tswapl(target_msgh->msg_controllen);
1115 if (msg_controllen < sizeof (struct target_cmsghdr))
1116 goto the_end;
1117 target_cmsg_addr = tswapl(target_msgh->msg_control);
1118 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1119 if (!target_cmsg)
1120 return -TARGET_EFAULT;
1121
1122 while (cmsg && target_cmsg) {
1123 void *data = CMSG_DATA(cmsg);
1124 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1125
1126 int len = tswapl(target_cmsg->cmsg_len)
1127 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1128
1129 space += CMSG_SPACE(len);
1130 if (space > msgh->msg_controllen) {
1131 space -= CMSG_SPACE(len);
1132 gemu_log("Host cmsg overflow\n");
1133 break;
1134 }
1135
1136 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1137 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1138 cmsg->cmsg_len = CMSG_LEN(len);
1139
1140 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1141 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1142 memcpy(data, target_data, len);
1143 } else {
1144 int *fd = (int *)data;
1145 int *target_fd = (int *)target_data;
1146 int i, numfds = len / sizeof(int);
1147
1148 for (i = 0; i < numfds; i++)
1149 fd[i] = tswap32(target_fd[i]);
1150 }
1151
1152 cmsg = CMSG_NXTHDR(msgh, cmsg);
1153 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1154 }
1155 unlock_user(target_cmsg, target_cmsg_addr, 0);
1156 the_end:
1157 msgh->msg_controllen = space;
1158 return 0;
1159 }
1160
1161 /* ??? Should this also swap msgh->name? */
1162 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1163 struct msghdr *msgh)
1164 {
1165 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1166 abi_long msg_controllen;
1167 abi_ulong target_cmsg_addr;
1168 struct target_cmsghdr *target_cmsg;
1169 socklen_t space = 0;
1170
1171 msg_controllen = tswapl(target_msgh->msg_controllen);
1172 if (msg_controllen < sizeof (struct target_cmsghdr))
1173 goto the_end;
1174 target_cmsg_addr = tswapl(target_msgh->msg_control);
1175 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1176 if (!target_cmsg)
1177 return -TARGET_EFAULT;
1178
1179 while (cmsg && target_cmsg) {
1180 void *data = CMSG_DATA(cmsg);
1181 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1182
1183 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1184
1185 space += TARGET_CMSG_SPACE(len);
1186 if (space > msg_controllen) {
1187 space -= TARGET_CMSG_SPACE(len);
1188 gemu_log("Target cmsg overflow\n");
1189 break;
1190 }
1191
1192 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1193 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1194 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
1195
1196 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1197 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1198 memcpy(target_data, data, len);
1199 } else {
1200 int *fd = (int *)data;
1201 int *target_fd = (int *)target_data;
1202 int i, numfds = len / sizeof(int);
1203
1204 for (i = 0; i < numfds; i++)
1205 target_fd[i] = tswap32(fd[i]);
1206 }
1207
1208 cmsg = CMSG_NXTHDR(msgh, cmsg);
1209 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1210 }
1211 unlock_user(target_cmsg, target_cmsg_addr, space);
1212 the_end:
1213 target_msgh->msg_controllen = tswapl(space);
1214 return 0;
1215 }
1216
1217 /* do_setsockopt() Must return target values and target errnos. */
1218 static abi_long do_setsockopt(int sockfd, int level, int optname,
1219 abi_ulong optval_addr, socklen_t optlen)
1220 {
1221 abi_long ret;
1222 int val;
1223 struct ip_mreqn *ip_mreq;
1224 struct ip_mreq_source *ip_mreq_source;
1225
1226 switch(level) {
1227 case SOL_TCP:
1228 /* TCP options all take an 'int' value. */
1229 if (optlen < sizeof(uint32_t))
1230 return -TARGET_EINVAL;
1231
1232 if (get_user_u32(val, optval_addr))
1233 return -TARGET_EFAULT;
1234 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1235 break;
1236 case SOL_IP:
1237 switch(optname) {
1238 case IP_TOS:
1239 case IP_TTL:
1240 case IP_HDRINCL:
1241 case IP_ROUTER_ALERT:
1242 case IP_RECVOPTS:
1243 case IP_RETOPTS:
1244 case IP_PKTINFO:
1245 case IP_MTU_DISCOVER:
1246 case IP_RECVERR:
1247 case IP_RECVTOS:
1248 #ifdef IP_FREEBIND
1249 case IP_FREEBIND:
1250 #endif
1251 case IP_MULTICAST_TTL:
1252 case IP_MULTICAST_LOOP:
1253 val = 0;
1254 if (optlen >= sizeof(uint32_t)) {
1255 if (get_user_u32(val, optval_addr))
1256 return -TARGET_EFAULT;
1257 } else if (optlen >= 1) {
1258 if (get_user_u8(val, optval_addr))
1259 return -TARGET_EFAULT;
1260 }
1261 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1262 break;
1263 case IP_ADD_MEMBERSHIP:
1264 case IP_DROP_MEMBERSHIP:
1265 if (optlen < sizeof (struct target_ip_mreq) ||
1266 optlen > sizeof (struct target_ip_mreqn))
1267 return -TARGET_EINVAL;
1268
1269 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1270 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1271 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1272 break;
1273
1274 case IP_BLOCK_SOURCE:
1275 case IP_UNBLOCK_SOURCE:
1276 case IP_ADD_SOURCE_MEMBERSHIP:
1277 case IP_DROP_SOURCE_MEMBERSHIP:
1278 if (optlen != sizeof (struct target_ip_mreq_source))
1279 return -TARGET_EINVAL;
1280
1281 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1282 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1283 unlock_user (ip_mreq_source, optval_addr, 0);
1284 break;
1285
1286 default:
1287 goto unimplemented;
1288 }
1289 break;
1290 case TARGET_SOL_SOCKET:
1291 switch (optname) {
1292 /* Options with 'int' argument. */
1293 case TARGET_SO_DEBUG:
1294 optname = SO_DEBUG;
1295 break;
1296 case TARGET_SO_REUSEADDR:
1297 optname = SO_REUSEADDR;
1298 break;
1299 case TARGET_SO_TYPE:
1300 optname = SO_TYPE;
1301 break;
1302 case TARGET_SO_ERROR:
1303 optname = SO_ERROR;
1304 break;
1305 case TARGET_SO_DONTROUTE:
1306 optname = SO_DONTROUTE;
1307 break;
1308 case TARGET_SO_BROADCAST:
1309 optname = SO_BROADCAST;
1310 break;
1311 case TARGET_SO_SNDBUF:
1312 optname = SO_SNDBUF;
1313 break;
1314 case TARGET_SO_RCVBUF:
1315 optname = SO_RCVBUF;
1316 break;
1317 case TARGET_SO_KEEPALIVE:
1318 optname = SO_KEEPALIVE;
1319 break;
1320 case TARGET_SO_OOBINLINE:
1321 optname = SO_OOBINLINE;
1322 break;
1323 case TARGET_SO_NO_CHECK:
1324 optname = SO_NO_CHECK;
1325 break;
1326 case TARGET_SO_PRIORITY:
1327 optname = SO_PRIORITY;
1328 break;
1329 #ifdef SO_BSDCOMPAT
1330 case TARGET_SO_BSDCOMPAT:
1331 optname = SO_BSDCOMPAT;
1332 break;
1333 #endif
1334 case TARGET_SO_PASSCRED:
1335 optname = SO_PASSCRED;
1336 break;
1337 case TARGET_SO_TIMESTAMP:
1338 optname = SO_TIMESTAMP;
1339 break;
1340 case TARGET_SO_RCVLOWAT:
1341 optname = SO_RCVLOWAT;
1342 break;
1343 case TARGET_SO_RCVTIMEO:
1344 optname = SO_RCVTIMEO;
1345 break;
1346 case TARGET_SO_SNDTIMEO:
1347 optname = SO_SNDTIMEO;
1348 break;
1349 break;
1350 default:
1351 goto unimplemented;
1352 }
1353 if (optlen < sizeof(uint32_t))
1354 return -TARGET_EINVAL;
1355
1356 if (get_user_u32(val, optval_addr))
1357 return -TARGET_EFAULT;
1358 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1359 break;
1360 default:
1361 unimplemented:
1362 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
1363 ret = -TARGET_ENOPROTOOPT;
1364 }
1365 return ret;
1366 }
1367
1368 /* do_getsockopt() Must return target values and target errnos. */
1369 static abi_long do_getsockopt(int sockfd, int level, int optname,
1370 abi_ulong optval_addr, abi_ulong optlen)
1371 {
1372 abi_long ret;
1373 int len, val;
1374 socklen_t lv;
1375
1376 switch(level) {
1377 case TARGET_SOL_SOCKET:
1378 level = SOL_SOCKET;
1379 switch (optname) {
1380 /* These don't just return a single integer */
1381 case TARGET_SO_LINGER:
1382 case TARGET_SO_RCVTIMEO:
1383 case TARGET_SO_SNDTIMEO:
1384 case TARGET_SO_PEERCRED:
1385 case TARGET_SO_PEERNAME:
1386 goto unimplemented;
1387 /* Options with 'int' argument. */
1388 case TARGET_SO_DEBUG:
1389 optname = SO_DEBUG;
1390 goto int_case;
1391 case TARGET_SO_REUSEADDR:
1392 optname = SO_REUSEADDR;
1393 goto int_case;
1394 case TARGET_SO_TYPE:
1395 optname = SO_TYPE;
1396 goto int_case;
1397 case TARGET_SO_ERROR:
1398 optname = SO_ERROR;
1399 goto int_case;
1400 case TARGET_SO_DONTROUTE:
1401 optname = SO_DONTROUTE;
1402 goto int_case;
1403 case TARGET_SO_BROADCAST:
1404 optname = SO_BROADCAST;
1405 goto int_case;
1406 case TARGET_SO_SNDBUF:
1407 optname = SO_SNDBUF;
1408 goto int_case;
1409 case TARGET_SO_RCVBUF:
1410 optname = SO_RCVBUF;
1411 goto int_case;
1412 case TARGET_SO_KEEPALIVE:
1413 optname = SO_KEEPALIVE;
1414 goto int_case;
1415 case TARGET_SO_OOBINLINE:
1416 optname = SO_OOBINLINE;
1417 goto int_case;
1418 case TARGET_SO_NO_CHECK:
1419 optname = SO_NO_CHECK;
1420 goto int_case;
1421 case TARGET_SO_PRIORITY:
1422 optname = SO_PRIORITY;
1423 goto int_case;
1424 #ifdef SO_BSDCOMPAT
1425 case TARGET_SO_BSDCOMPAT:
1426 optname = SO_BSDCOMPAT;
1427 goto int_case;
1428 #endif
1429 case TARGET_SO_PASSCRED:
1430 optname = SO_PASSCRED;
1431 goto int_case;
1432 case TARGET_SO_TIMESTAMP:
1433 optname = SO_TIMESTAMP;
1434 goto int_case;
1435 case TARGET_SO_RCVLOWAT:
1436 optname = SO_RCVLOWAT;
1437 goto int_case;
1438 default:
1439 goto int_case;
1440 }
1441 break;
1442 case SOL_TCP:
1443 /* TCP options all take an 'int' value. */
1444 int_case:
1445 if (get_user_u32(len, optlen))
1446 return -TARGET_EFAULT;
1447 if (len < 0)
1448 return -TARGET_EINVAL;
1449 lv = sizeof(int);
1450 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1451 if (ret < 0)
1452 return ret;
1453 if (len > lv)
1454 len = lv;
1455 if (len == 4) {
1456 if (put_user_u32(val, optval_addr))
1457 return -TARGET_EFAULT;
1458 } else {
1459 if (put_user_u8(val, optval_addr))
1460 return -TARGET_EFAULT;
1461 }
1462 if (put_user_u32(len, optlen))
1463 return -TARGET_EFAULT;
1464 break;
1465 case SOL_IP:
1466 switch(optname) {
1467 case IP_TOS:
1468 case IP_TTL:
1469 case IP_HDRINCL:
1470 case IP_ROUTER_ALERT:
1471 case IP_RECVOPTS:
1472 case IP_RETOPTS:
1473 case IP_PKTINFO:
1474 case IP_MTU_DISCOVER:
1475 case IP_RECVERR:
1476 case IP_RECVTOS:
1477 #ifdef IP_FREEBIND
1478 case IP_FREEBIND:
1479 #endif
1480 case IP_MULTICAST_TTL:
1481 case IP_MULTICAST_LOOP:
1482 if (get_user_u32(len, optlen))
1483 return -TARGET_EFAULT;
1484 if (len < 0)
1485 return -TARGET_EINVAL;
1486 lv = sizeof(int);
1487 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1488 if (ret < 0)
1489 return ret;
1490 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1491 len = 1;
1492 if (put_user_u32(len, optlen)
1493 || put_user_u8(val, optval_addr))
1494 return -TARGET_EFAULT;
1495 } else {
1496 if (len > sizeof(int))
1497 len = sizeof(int);
1498 if (put_user_u32(len, optlen)
1499 || put_user_u32(val, optval_addr))
1500 return -TARGET_EFAULT;
1501 }
1502 break;
1503 default:
1504 ret = -TARGET_ENOPROTOOPT;
1505 break;
1506 }
1507 break;
1508 default:
1509 unimplemented:
1510 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1511 level, optname);
1512 ret = -TARGET_EOPNOTSUPP;
1513 break;
1514 }
1515 return ret;
1516 }
1517
1518 /* FIXME
1519 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1520 * other lock functions have a return code of 0 for failure.
1521 */
1522 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1523 int count, int copy)
1524 {
1525 struct target_iovec *target_vec;
1526 abi_ulong base;
1527 int i;
1528
1529 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1530 if (!target_vec)
1531 return -TARGET_EFAULT;
1532 for(i = 0;i < count; i++) {
1533 base = tswapl(target_vec[i].iov_base);
1534 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1535 if (vec[i].iov_len != 0) {
1536 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1537 /* Don't check lock_user return value. We must call writev even
1538 if a element has invalid base address. */
1539 } else {
1540 /* zero length pointer is ignored */
1541 vec[i].iov_base = NULL;
1542 }
1543 }
1544 unlock_user (target_vec, target_addr, 0);
1545 return 0;
1546 }
1547
1548 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1549 int count, int copy)
1550 {
1551 struct target_iovec *target_vec;
1552 abi_ulong base;
1553 int i;
1554
1555 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1556 if (!target_vec)
1557 return -TARGET_EFAULT;
1558 for(i = 0;i < count; i++) {
1559 if (target_vec[i].iov_base) {
1560 base = tswapl(target_vec[i].iov_base);
1561 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1562 }
1563 }
1564 unlock_user (target_vec, target_addr, 0);
1565
1566 return 0;
1567 }
1568
1569 /* do_socket() Must return target values and target errnos. */
1570 static abi_long do_socket(int domain, int type, int protocol)
1571 {
1572 #if defined(TARGET_MIPS)
1573 switch(type) {
1574 case TARGET_SOCK_DGRAM:
1575 type = SOCK_DGRAM;
1576 break;
1577 case TARGET_SOCK_STREAM:
1578 type = SOCK_STREAM;
1579 break;
1580 case TARGET_SOCK_RAW:
1581 type = SOCK_RAW;
1582 break;
1583 case TARGET_SOCK_RDM:
1584 type = SOCK_RDM;
1585 break;
1586 case TARGET_SOCK_SEQPACKET:
1587 type = SOCK_SEQPACKET;
1588 break;
1589 case TARGET_SOCK_PACKET:
1590 type = SOCK_PACKET;
1591 break;
1592 }
1593 #endif
1594 if (domain == PF_NETLINK)
1595 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1596 return get_errno(socket(domain, type, protocol));
1597 }
1598
1599 /* do_bind() Must return target values and target errnos. */
1600 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1601 socklen_t addrlen)
1602 {
1603 void *addr;
1604 abi_long ret;
1605
1606 if ((int)addrlen < 0) {
1607 return -TARGET_EINVAL;
1608 }
1609
1610 addr = alloca(addrlen+1);
1611
1612 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1613 if (ret)
1614 return ret;
1615
1616 return get_errno(bind(sockfd, addr, addrlen));
1617 }
1618
1619 /* do_connect() Must return target values and target errnos. */
1620 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1621 socklen_t addrlen)
1622 {
1623 void *addr;
1624 abi_long ret;
1625
1626 if ((int)addrlen < 0) {
1627 return -TARGET_EINVAL;
1628 }
1629
1630 addr = alloca(addrlen);
1631
1632 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1633 if (ret)
1634 return ret;
1635
1636 return get_errno(connect(sockfd, addr, addrlen));
1637 }
1638
1639 /* do_sendrecvmsg() Must return target values and target errnos. */
1640 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1641 int flags, int send)
1642 {
1643 abi_long ret, len;
1644 struct target_msghdr *msgp;
1645 struct msghdr msg;
1646 int count;
1647 struct iovec *vec;
1648 abi_ulong target_vec;
1649
1650 /* FIXME */
1651 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1652 msgp,
1653 target_msg,
1654 send ? 1 : 0))
1655 return -TARGET_EFAULT;
1656 if (msgp->msg_name) {
1657 msg.msg_namelen = tswap32(msgp->msg_namelen);
1658 msg.msg_name = alloca(msg.msg_namelen);
1659 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1660 msg.msg_namelen);
1661 if (ret) {
1662 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1663 return ret;
1664 }
1665 } else {
1666 msg.msg_name = NULL;
1667 msg.msg_namelen = 0;
1668 }
1669 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1670 msg.msg_control = alloca(msg.msg_controllen);
1671 msg.msg_flags = tswap32(msgp->msg_flags);
1672
1673 count = tswapl(msgp->msg_iovlen);
1674 vec = alloca(count * sizeof(struct iovec));
1675 target_vec = tswapl(msgp->msg_iov);
1676 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1677 msg.msg_iovlen = count;
1678 msg.msg_iov = vec;
1679
1680 if (send) {
1681 ret = target_to_host_cmsg(&msg, msgp);
1682 if (ret == 0)
1683 ret = get_errno(sendmsg(fd, &msg, flags));
1684 } else {
1685 ret = get_errno(recvmsg(fd, &msg, flags));
1686 if (!is_error(ret)) {
1687 len = ret;
1688 ret = host_to_target_cmsg(msgp, &msg);
1689 if (!is_error(ret))
1690 ret = len;
1691 }
1692 }
1693 unlock_iovec(vec, target_vec, count, !send);
1694 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1695 return ret;
1696 }
1697
1698 /* do_accept() Must return target values and target errnos. */
1699 static abi_long do_accept(int fd, abi_ulong target_addr,
1700 abi_ulong target_addrlen_addr)
1701 {
1702 socklen_t addrlen;
1703 void *addr;
1704 abi_long ret;
1705
1706 if (target_addr == 0)
1707 return get_errno(accept(fd, NULL, NULL));
1708
1709 /* linux returns EINVAL if addrlen pointer is invalid */
1710 if (get_user_u32(addrlen, target_addrlen_addr))
1711 return -TARGET_EINVAL;
1712
1713 if ((int)addrlen < 0) {
1714 return -TARGET_EINVAL;
1715 }
1716
1717 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1718 return -TARGET_EINVAL;
1719
1720 addr = alloca(addrlen);
1721
1722 ret = get_errno(accept(fd, addr, &addrlen));
1723 if (!is_error(ret)) {
1724 host_to_target_sockaddr(target_addr, addr, addrlen);
1725 if (put_user_u32(addrlen, target_addrlen_addr))
1726 ret = -TARGET_EFAULT;
1727 }
1728 return ret;
1729 }
1730
1731 /* do_getpeername() Must return target values and target errnos. */
1732 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1733 abi_ulong target_addrlen_addr)
1734 {
1735 socklen_t addrlen;
1736 void *addr;
1737 abi_long ret;
1738
1739 if (get_user_u32(addrlen, target_addrlen_addr))
1740 return -TARGET_EFAULT;
1741
1742 if ((int)addrlen < 0) {
1743 return -TARGET_EINVAL;
1744 }
1745
1746 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1747 return -TARGET_EFAULT;
1748
1749 addr = alloca(addrlen);
1750
1751 ret = get_errno(getpeername(fd, addr, &addrlen));
1752 if (!is_error(ret)) {
1753 host_to_target_sockaddr(target_addr, addr, addrlen);
1754 if (put_user_u32(addrlen, target_addrlen_addr))
1755 ret = -TARGET_EFAULT;
1756 }
1757 return ret;
1758 }
1759
1760 /* do_getsockname() Must return target values and target errnos. */
1761 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1762 abi_ulong target_addrlen_addr)
1763 {
1764 socklen_t addrlen;
1765 void *addr;
1766 abi_long ret;
1767
1768 if (get_user_u32(addrlen, target_addrlen_addr))
1769 return -TARGET_EFAULT;
1770
1771 if ((int)addrlen < 0) {
1772 return -TARGET_EINVAL;
1773 }
1774
1775 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1776 return -TARGET_EFAULT;
1777
1778 addr = alloca(addrlen);
1779
1780 ret = get_errno(getsockname(fd, addr, &addrlen));
1781 if (!is_error(ret)) {
1782 host_to_target_sockaddr(target_addr, addr, addrlen);
1783 if (put_user_u32(addrlen, target_addrlen_addr))
1784 ret = -TARGET_EFAULT;
1785 }
1786 return ret;
1787 }
1788
1789 /* do_socketpair() Must return target values and target errnos. */
1790 static abi_long do_socketpair(int domain, int type, int protocol,
1791 abi_ulong target_tab_addr)
1792 {
1793 int tab[2];
1794 abi_long ret;
1795
1796 ret = get_errno(socketpair(domain, type, protocol, tab));
1797 if (!is_error(ret)) {
1798 if (put_user_s32(tab[0], target_tab_addr)
1799 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1800 ret = -TARGET_EFAULT;
1801 }
1802 return ret;
1803 }
1804
1805 /* do_sendto() Must return target values and target errnos. */
1806 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1807 abi_ulong target_addr, socklen_t addrlen)
1808 {
1809 void *addr;
1810 void *host_msg;
1811 abi_long ret;
1812
1813 if ((int)addrlen < 0) {
1814 return -TARGET_EINVAL;
1815 }
1816
1817 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1818 if (!host_msg)
1819 return -TARGET_EFAULT;
1820 if (target_addr) {
1821 addr = alloca(addrlen);
1822 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1823 if (ret) {
1824 unlock_user(host_msg, msg, 0);
1825 return ret;
1826 }
1827 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1828 } else {
1829 ret = get_errno(send(fd, host_msg, len, flags));
1830 }
1831 unlock_user(host_msg, msg, 0);
1832 return ret;
1833 }
1834
1835 /* do_recvfrom() Must return target values and target errnos. */
1836 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1837 abi_ulong target_addr,
1838 abi_ulong target_addrlen)
1839 {
1840 socklen_t addrlen;
1841 void *addr;
1842 void *host_msg;
1843 abi_long ret;
1844
1845 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1846 if (!host_msg)
1847 return -TARGET_EFAULT;
1848 if (target_addr) {
1849 if (get_user_u32(addrlen, target_addrlen)) {
1850 ret = -TARGET_EFAULT;
1851 goto fail;
1852 }
1853 if ((int)addrlen < 0) {
1854 ret = -TARGET_EINVAL;
1855 goto fail;
1856 }
1857 addr = alloca(addrlen);
1858 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1859 } else {
1860 addr = NULL; /* To keep compiler quiet. */
1861 ret = get_errno(recv(fd, host_msg, len, flags));
1862 }
1863 if (!is_error(ret)) {
1864 if (target_addr) {
1865 host_to_target_sockaddr(target_addr, addr, addrlen);
1866 if (put_user_u32(addrlen, target_addrlen)) {
1867 ret = -TARGET_EFAULT;
1868 goto fail;
1869 }
1870 }
1871 unlock_user(host_msg, msg, len);
1872 } else {
1873 fail:
1874 unlock_user(host_msg, msg, 0);
1875 }
1876 return ret;
1877 }
1878
1879 #ifdef TARGET_NR_socketcall
1880 /* do_socketcall() Must return target values and target errnos. */
1881 static abi_long do_socketcall(int num, abi_ulong vptr)
1882 {
1883 abi_long ret;
1884 const int n = sizeof(abi_ulong);
1885
1886 switch(num) {
1887 case SOCKOP_socket:
1888 {
1889 abi_ulong domain, type, protocol;
1890
1891 if (get_user_ual(domain, vptr)
1892 || get_user_ual(type, vptr + n)
1893 || get_user_ual(protocol, vptr + 2 * n))
1894 return -TARGET_EFAULT;
1895
1896 ret = do_socket(domain, type, protocol);
1897 }
1898 break;
1899 case SOCKOP_bind:
1900 {
1901 abi_ulong sockfd;
1902 abi_ulong target_addr;
1903 socklen_t addrlen;
1904
1905 if (get_user_ual(sockfd, vptr)
1906 || get_user_ual(target_addr, vptr + n)
1907 || get_user_ual(addrlen, vptr + 2 * n))
1908 return -TARGET_EFAULT;
1909
1910 ret = do_bind(sockfd, target_addr, addrlen);
1911 }
1912 break;
1913 case SOCKOP_connect:
1914 {
1915 abi_ulong sockfd;
1916 abi_ulong target_addr;
1917 socklen_t addrlen;
1918
1919 if (get_user_ual(sockfd, vptr)
1920 || get_user_ual(target_addr, vptr + n)
1921 || get_user_ual(addrlen, vptr + 2 * n))
1922 return -TARGET_EFAULT;
1923
1924 ret = do_connect(sockfd, target_addr, addrlen);
1925 }
1926 break;
1927 case SOCKOP_listen:
1928 {
1929 abi_ulong sockfd, backlog;
1930
1931 if (get_user_ual(sockfd, vptr)
1932 || get_user_ual(backlog, vptr + n))
1933 return -TARGET_EFAULT;
1934
1935 ret = get_errno(listen(sockfd, backlog));
1936 }
1937 break;
1938 case SOCKOP_accept:
1939 {
1940 abi_ulong sockfd;
1941 abi_ulong target_addr, target_addrlen;
1942
1943 if (get_user_ual(sockfd, vptr)
1944 || get_user_ual(target_addr, vptr + n)
1945 || get_user_ual(target_addrlen, vptr + 2 * n))
1946 return -TARGET_EFAULT;
1947
1948 ret = do_accept(sockfd, target_addr, target_addrlen);
1949 }
1950 break;
1951 case SOCKOP_getsockname:
1952 {
1953 abi_ulong sockfd;
1954 abi_ulong target_addr, target_addrlen;
1955
1956 if (get_user_ual(sockfd, vptr)
1957 || get_user_ual(target_addr, vptr + n)
1958 || get_user_ual(target_addrlen, vptr + 2 * n))
1959 return -TARGET_EFAULT;
1960
1961 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1962 }
1963 break;
1964 case SOCKOP_getpeername:
1965 {
1966 abi_ulong sockfd;
1967 abi_ulong target_addr, target_addrlen;
1968
1969 if (get_user_ual(sockfd, vptr)
1970 || get_user_ual(target_addr, vptr + n)
1971 || get_user_ual(target_addrlen, vptr + 2 * n))
1972 return -TARGET_EFAULT;
1973
1974 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1975 }
1976 break;
1977 case SOCKOP_socketpair:
1978 {
1979 abi_ulong domain, type, protocol;
1980 abi_ulong tab;
1981
1982 if (get_user_ual(domain, vptr)
1983 || get_user_ual(type, vptr + n)
1984 || get_user_ual(protocol, vptr + 2 * n)
1985 || get_user_ual(tab, vptr + 3 * n))
1986 return -TARGET_EFAULT;
1987
1988 ret = do_socketpair(domain, type, protocol, tab);
1989 }
1990 break;
1991 case SOCKOP_send:
1992 {
1993 abi_ulong sockfd;
1994 abi_ulong msg;
1995 size_t len;
1996 abi_ulong flags;
1997
1998 if (get_user_ual(sockfd, vptr)
1999 || get_user_ual(msg, vptr + n)
2000 || get_user_ual(len, vptr + 2 * n)
2001 || get_user_ual(flags, vptr + 3 * n))
2002 return -TARGET_EFAULT;
2003
2004 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2005 }
2006 break;
2007 case SOCKOP_recv:
2008 {
2009 abi_ulong sockfd;
2010 abi_ulong msg;
2011 size_t len;
2012 abi_ulong flags;
2013
2014 if (get_user_ual(sockfd, vptr)
2015 || get_user_ual(msg, vptr + n)
2016 || get_user_ual(len, vptr + 2 * n)
2017 || get_user_ual(flags, vptr + 3 * n))
2018 return -TARGET_EFAULT;
2019
2020 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2021 }
2022 break;
2023 case SOCKOP_sendto:
2024 {
2025 abi_ulong sockfd;
2026 abi_ulong msg;
2027 size_t len;
2028 abi_ulong flags;
2029 abi_ulong addr;
2030 socklen_t addrlen;
2031
2032 if (get_user_ual(sockfd, vptr)
2033 || get_user_ual(msg, vptr + n)
2034 || get_user_ual(len, vptr + 2 * n)
2035 || get_user_ual(flags, vptr + 3 * n)
2036 || get_user_ual(addr, vptr + 4 * n)
2037 || get_user_ual(addrlen, vptr + 5 * n))
2038 return -TARGET_EFAULT;
2039
2040 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2041 }
2042 break;
2043 case SOCKOP_recvfrom:
2044 {
2045 abi_ulong sockfd;
2046 abi_ulong msg;
2047 size_t len;
2048 abi_ulong flags;
2049 abi_ulong addr;
2050 socklen_t addrlen;
2051
2052 if (get_user_ual(sockfd, vptr)
2053 || get_user_ual(msg, vptr + n)
2054 || get_user_ual(len, vptr + 2 * n)
2055 || get_user_ual(flags, vptr + 3 * n)
2056 || get_user_ual(addr, vptr + 4 * n)
2057 || get_user_ual(addrlen, vptr + 5 * n))
2058 return -TARGET_EFAULT;
2059
2060 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2061 }
2062 break;
2063 case SOCKOP_shutdown:
2064 {
2065 abi_ulong sockfd, how;
2066
2067 if (get_user_ual(sockfd, vptr)
2068 || get_user_ual(how, vptr + n))
2069 return -TARGET_EFAULT;
2070
2071 ret = get_errno(shutdown(sockfd, how));
2072 }
2073 break;
2074 case SOCKOP_sendmsg:
2075 case SOCKOP_recvmsg:
2076 {
2077 abi_ulong fd;
2078 abi_ulong target_msg;
2079 abi_ulong flags;
2080
2081 if (get_user_ual(fd, vptr)
2082 || get_user_ual(target_msg, vptr + n)
2083 || get_user_ual(flags, vptr + 2 * n))
2084 return -TARGET_EFAULT;
2085
2086 ret = do_sendrecvmsg(fd, target_msg, flags,
2087 (num == SOCKOP_sendmsg));
2088 }
2089 break;
2090 case SOCKOP_setsockopt:
2091 {
2092 abi_ulong sockfd;
2093 abi_ulong level;
2094 abi_ulong optname;
2095 abi_ulong optval;
2096 socklen_t optlen;
2097
2098 if (get_user_ual(sockfd, vptr)
2099 || get_user_ual(level, vptr + n)
2100 || get_user_ual(optname, vptr + 2 * n)
2101 || get_user_ual(optval, vptr + 3 * n)
2102 || get_user_ual(optlen, vptr + 4 * n))
2103 return -TARGET_EFAULT;
2104
2105 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2106 }
2107 break;
2108 case SOCKOP_getsockopt:
2109 {
2110 abi_ulong sockfd;
2111 abi_ulong level;
2112 abi_ulong optname;
2113 abi_ulong optval;
2114 socklen_t optlen;
2115
2116 if (get_user_ual(sockfd, vptr)
2117 || get_user_ual(level, vptr + n)
2118 || get_user_ual(optname, vptr + 2 * n)
2119 || get_user_ual(optval, vptr + 3 * n)
2120 || get_user_ual(optlen, vptr + 4 * n))
2121 return -TARGET_EFAULT;
2122
2123 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2124 }
2125 break;
2126 default:
2127 gemu_log("Unsupported socketcall: %d\n", num);
2128 ret = -TARGET_ENOSYS;
2129 break;
2130 }
2131 return ret;
2132 }
2133 #endif
2134
2135 #define N_SHM_REGIONS 32
2136
2137 static struct shm_region {
2138 abi_ulong start;
2139 abi_ulong size;
2140 } shm_regions[N_SHM_REGIONS];
2141
2142 struct target_ipc_perm
2143 {
2144 abi_long __key;
2145 abi_ulong uid;
2146 abi_ulong gid;
2147 abi_ulong cuid;
2148 abi_ulong cgid;
2149 unsigned short int mode;
2150 unsigned short int __pad1;
2151 unsigned short int __seq;
2152 unsigned short int __pad2;
2153 abi_ulong __unused1;
2154 abi_ulong __unused2;
2155 };
2156
2157 struct target_semid_ds
2158 {
2159 struct target_ipc_perm sem_perm;
2160 abi_ulong sem_otime;
2161 abi_ulong __unused1;
2162 abi_ulong sem_ctime;
2163 abi_ulong __unused2;
2164 abi_ulong sem_nsems;
2165 abi_ulong __unused3;
2166 abi_ulong __unused4;
2167 };
2168
2169 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2170 abi_ulong target_addr)
2171 {
2172 struct target_ipc_perm *target_ip;
2173 struct target_semid_ds *target_sd;
2174
2175 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2176 return -TARGET_EFAULT;
2177 target_ip = &(target_sd->sem_perm);
2178 host_ip->__key = tswapl(target_ip->__key);
2179 host_ip->uid = tswapl(target_ip->uid);
2180 host_ip->gid = tswapl(target_ip->gid);
2181 host_ip->cuid = tswapl(target_ip->cuid);
2182 host_ip->cgid = tswapl(target_ip->cgid);
2183 host_ip->mode = tswapl(target_ip->mode);
2184 unlock_user_struct(target_sd, target_addr, 0);
2185 return 0;
2186 }
2187
2188 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2189 struct ipc_perm *host_ip)
2190 {
2191 struct target_ipc_perm *target_ip;
2192 struct target_semid_ds *target_sd;
2193
2194 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2195 return -TARGET_EFAULT;
2196 target_ip = &(target_sd->sem_perm);
2197 target_ip->__key = tswapl(host_ip->__key);
2198 target_ip->uid = tswapl(host_ip->uid);
2199 target_ip->gid = tswapl(host_ip->gid);
2200 target_ip->cuid = tswapl(host_ip->cuid);
2201 target_ip->cgid = tswapl(host_ip->cgid);
2202 target_ip->mode = tswapl(host_ip->mode);
2203 unlock_user_struct(target_sd, target_addr, 1);
2204 return 0;
2205 }
2206
2207 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2208 abi_ulong target_addr)
2209 {
2210 struct target_semid_ds *target_sd;
2211
2212 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2213 return -TARGET_EFAULT;
2214 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2215 return -TARGET_EFAULT;
2216 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
2217 host_sd->sem_otime = tswapl(target_sd->sem_otime);
2218 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
2219 unlock_user_struct(target_sd, target_addr, 0);
2220 return 0;
2221 }
2222
2223 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2224 struct semid_ds *host_sd)
2225 {
2226 struct target_semid_ds *target_sd;
2227
2228 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2229 return -TARGET_EFAULT;
2230 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2231 return -TARGET_EFAULT;;
2232 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
2233 target_sd->sem_otime = tswapl(host_sd->sem_otime);
2234 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
2235 unlock_user_struct(target_sd, target_addr, 1);
2236 return 0;
2237 }
2238
2239 struct target_seminfo {
2240 int semmap;
2241 int semmni;
2242 int semmns;
2243 int semmnu;
2244 int semmsl;
2245 int semopm;
2246 int semume;
2247 int semusz;
2248 int semvmx;
2249 int semaem;
2250 };
2251
2252 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2253 struct seminfo *host_seminfo)
2254 {
2255 struct target_seminfo *target_seminfo;
2256 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2257 return -TARGET_EFAULT;
2258 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2259 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2260 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2261 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2262 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2263 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2264 __put_user(host_seminfo->semume, &target_seminfo->semume);
2265 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2266 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2267 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2268 unlock_user_struct(target_seminfo, target_addr, 1);
2269 return 0;
2270 }
2271
2272 union semun {
2273 int val;
2274 struct semid_ds *buf;
2275 unsigned short *array;
2276 struct seminfo *__buf;
2277 };
2278
2279 union target_semun {
2280 int val;
2281 abi_ulong buf;
2282 abi_ulong array;
2283 abi_ulong __buf;
2284 };
2285
2286 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2287 abi_ulong target_addr)
2288 {
2289 int nsems;
2290 unsigned short *array;
2291 union semun semun;
2292 struct semid_ds semid_ds;
2293 int i, ret;
2294
2295 semun.buf = &semid_ds;
2296
2297 ret = semctl(semid, 0, IPC_STAT, semun);
2298 if (ret == -1)
2299 return get_errno(ret);
2300
2301 nsems = semid_ds.sem_nsems;
2302
2303 *host_array = malloc(nsems*sizeof(unsigned short));
2304 array = lock_user(VERIFY_READ, target_addr,
2305 nsems*sizeof(unsigned short), 1);
2306 if (!array)
2307 return -TARGET_EFAULT;
2308
2309 for(i=0; i<nsems; i++) {
2310 __get_user((*host_array)[i], &array[i]);
2311 }
2312 unlock_user(array, target_addr, 0);
2313
2314 return 0;
2315 }
2316
2317 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2318 unsigned short **host_array)
2319 {
2320 int nsems;
2321 unsigned short *array;
2322 union semun semun;
2323 struct semid_ds semid_ds;
2324 int i, ret;
2325
2326 semun.buf = &semid_ds;
2327
2328 ret = semctl(semid, 0, IPC_STAT, semun);
2329 if (ret == -1)
2330 return get_errno(ret);
2331
2332 nsems = semid_ds.sem_nsems;
2333
2334 array = lock_user(VERIFY_WRITE, target_addr,
2335 nsems*sizeof(unsigned short), 0);
2336 if (!array)
2337 return -TARGET_EFAULT;
2338
2339 for(i=0; i<nsems; i++) {
2340 __put_user((*host_array)[i], &array[i]);
2341 }
2342 free(*host_array);
2343 unlock_user(array, target_addr, 1);
2344
2345 return 0;
2346 }
2347
2348 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2349 union target_semun target_su)
2350 {
2351 union semun arg;
2352 struct semid_ds dsarg;
2353 unsigned short *array = NULL;
2354 struct seminfo seminfo;
2355 abi_long ret = -TARGET_EINVAL;
2356 abi_long err;
2357 cmd &= 0xff;
2358
2359 switch( cmd ) {
2360 case GETVAL:
2361 case SETVAL:
2362 arg.val = tswapl(target_su.val);
2363 ret = get_errno(semctl(semid, semnum, cmd, arg));
2364 target_su.val = tswapl(arg.val);
2365 break;
2366 case GETALL:
2367 case SETALL:
2368 err = target_to_host_semarray(semid, &array, target_su.array);
2369 if (err)
2370 return err;
2371 arg.array = array;
2372 ret = get_errno(semctl(semid, semnum, cmd, arg));
2373 err = host_to_target_semarray(semid, target_su.array, &array);
2374 if (err)
2375 return err;
2376 break;
2377 case IPC_STAT:
2378 case IPC_SET:
2379 case SEM_STAT:
2380 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2381 if (err)
2382 return err;
2383 arg.buf = &dsarg;
2384 ret = get_errno(semctl(semid, semnum, cmd, arg));
2385 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2386 if (err)
2387 return err;
2388 break;
2389 case IPC_INFO:
2390 case SEM_INFO:
2391 arg.__buf = &seminfo;
2392 ret = get_errno(semctl(semid, semnum, cmd, arg));
2393 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2394 if (err)
2395 return err;
2396 break;
2397 case IPC_RMID:
2398 case GETPID:
2399 case GETNCNT:
2400 case GETZCNT:
2401 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2402 break;
2403 }
2404
2405 return ret;
2406 }
2407
2408 struct target_sembuf {
2409 unsigned short sem_num;
2410 short sem_op;
2411 short sem_flg;
2412 };
2413
2414 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2415 abi_ulong target_addr,
2416 unsigned nsops)
2417 {
2418 struct target_sembuf *target_sembuf;
2419 int i;
2420
2421 target_sembuf = lock_user(VERIFY_READ, target_addr,
2422 nsops*sizeof(struct target_sembuf), 1);
2423 if (!target_sembuf)
2424 return -TARGET_EFAULT;
2425
2426 for(i=0; i<nsops; i++) {
2427 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2428 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2429 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2430 }
2431
2432 unlock_user(target_sembuf, target_addr, 0);
2433
2434 return 0;
2435 }
2436
2437 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2438 {
2439 struct sembuf sops[nsops];
2440
2441 if (target_to_host_sembuf(sops, ptr, nsops))
2442 return -TARGET_EFAULT;
2443
2444 return semop(semid, sops, nsops);
2445 }
2446
2447 struct target_msqid_ds
2448 {
2449 struct target_ipc_perm msg_perm;
2450 abi_ulong msg_stime;
2451 #if TARGET_ABI_BITS == 32
2452 abi_ulong __unused1;
2453 #endif
2454 abi_ulong msg_rtime;
2455 #if TARGET_ABI_BITS == 32
2456 abi_ulong __unused2;
2457 #endif
2458 abi_ulong msg_ctime;
2459 #if TARGET_ABI_BITS == 32
2460 abi_ulong __unused3;
2461 #endif
2462 abi_ulong __msg_cbytes;
2463 abi_ulong msg_qnum;
2464 abi_ulong msg_qbytes;
2465 abi_ulong msg_lspid;
2466 abi_ulong msg_lrpid;
2467 abi_ulong __unused4;
2468 abi_ulong __unused5;
2469 };
2470
2471 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2472 abi_ulong target_addr)
2473 {
2474 struct target_msqid_ds *target_md;
2475
2476 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2477 return -TARGET_EFAULT;
2478 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2479 return -TARGET_EFAULT;
2480 host_md->msg_stime = tswapl(target_md->msg_stime);
2481 host_md->msg_rtime = tswapl(target_md->msg_rtime);
2482 host_md->msg_ctime = tswapl(target_md->msg_ctime);
2483 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
2484 host_md->msg_qnum = tswapl(target_md->msg_qnum);
2485 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
2486 host_md->msg_lspid = tswapl(target_md->msg_lspid);
2487 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
2488 unlock_user_struct(target_md, target_addr, 0);
2489 return 0;
2490 }
2491
2492 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2493 struct msqid_ds *host_md)
2494 {
2495 struct target_msqid_ds *target_md;
2496
2497 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2498 return -TARGET_EFAULT;
2499 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2500 return -TARGET_EFAULT;
2501 target_md->msg_stime = tswapl(host_md->msg_stime);
2502 target_md->msg_rtime = tswapl(host_md->msg_rtime);
2503 target_md->msg_ctime = tswapl(host_md->msg_ctime);
2504 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
2505 target_md->msg_qnum = tswapl(host_md->msg_qnum);
2506 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
2507 target_md->msg_lspid = tswapl(host_md->msg_lspid);
2508 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
2509 unlock_user_struct(target_md, target_addr, 1);
2510 return 0;
2511 }
2512
2513 struct target_msginfo {
2514 int msgpool;
2515 int msgmap;
2516 int msgmax;
2517 int msgmnb;
2518 int msgmni;
2519 int msgssz;
2520 int msgtql;
2521 unsigned short int msgseg;
2522 };
2523
2524 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2525 struct msginfo *host_msginfo)
2526 {
2527 struct target_msginfo *target_msginfo;
2528 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2529 return -TARGET_EFAULT;
2530 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2531 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2532 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2533 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2534 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2535 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2536 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2537 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2538 unlock_user_struct(target_msginfo, target_addr, 1);
2539 return 0;
2540 }
2541
2542 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2543 {
2544 struct msqid_ds dsarg;
2545 struct msginfo msginfo;
2546 abi_long ret = -TARGET_EINVAL;
2547
2548 cmd &= 0xff;
2549
2550 switch (cmd) {
2551 case IPC_STAT:
2552 case IPC_SET:
2553 case MSG_STAT:
2554 if (target_to_host_msqid_ds(&dsarg,ptr))
2555 return -TARGET_EFAULT;
2556 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2557 if (host_to_target_msqid_ds(ptr,&dsarg))
2558 return -TARGET_EFAULT;
2559 break;
2560 case IPC_RMID:
2561 ret = get_errno(msgctl(msgid, cmd, NULL));
2562 break;
2563 case IPC_INFO:
2564 case MSG_INFO:
2565 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2566 if (host_to_target_msginfo(ptr, &msginfo))
2567 return -TARGET_EFAULT;
2568 break;
2569 }
2570
2571 return ret;
2572 }
2573
2574 struct target_msgbuf {
2575 abi_long mtype;
2576 char mtext[1];
2577 };
2578
2579 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2580 unsigned int msgsz, int msgflg)
2581 {
2582 struct target_msgbuf *target_mb;
2583 struct msgbuf *host_mb;
2584 abi_long ret = 0;
2585
2586 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2587 return -TARGET_EFAULT;
2588 host_mb = malloc(msgsz+sizeof(long));
2589 host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
2590 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2591 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2592 free(host_mb);
2593 unlock_user_struct(target_mb, msgp, 0);
2594
2595 return ret;
2596 }
2597
2598 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2599 unsigned int msgsz, abi_long msgtyp,
2600 int msgflg)
2601 {
2602 struct target_msgbuf *target_mb;
2603 char *target_mtext;
2604 struct msgbuf *host_mb;
2605 abi_long ret = 0;
2606
2607 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2608 return -TARGET_EFAULT;
2609
2610 host_mb = malloc(msgsz+sizeof(long));
2611 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
2612
2613 if (ret > 0) {
2614 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2615 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2616 if (!target_mtext) {
2617 ret = -TARGET_EFAULT;
2618 goto end;
2619 }
2620 memcpy(target_mb->mtext, host_mb->mtext, ret);
2621 unlock_user(target_mtext, target_mtext_addr, ret);
2622 }
2623
2624 target_mb->mtype = tswapl(host_mb->mtype);
2625 free(host_mb);
2626
2627 end:
2628 if (target_mb)
2629 unlock_user_struct(target_mb, msgp, 1);
2630 return ret;
2631 }
2632
2633 struct target_shmid_ds
2634 {
2635 struct target_ipc_perm shm_perm;
2636 abi_ulong shm_segsz;
2637 abi_ulong shm_atime;
2638 #if TARGET_ABI_BITS == 32
2639 abi_ulong __unused1;
2640 #endif
2641 abi_ulong shm_dtime;
2642 #if TARGET_ABI_BITS == 32
2643 abi_ulong __unused2;
2644 #endif
2645 abi_ulong shm_ctime;
2646 #if TARGET_ABI_BITS == 32
2647 abi_ulong __unused3;
2648 #endif
2649 int shm_cpid;
2650 int shm_lpid;
2651 abi_ulong shm_nattch;
2652 unsigned long int __unused4;
2653 unsigned long int __unused5;
2654 };
2655
2656 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2657 abi_ulong target_addr)
2658 {
2659 struct target_shmid_ds *target_sd;
2660
2661 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2662 return -TARGET_EFAULT;
2663 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2664 return -TARGET_EFAULT;
2665 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2666 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2667 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2668 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2669 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2670 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2671 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2672 unlock_user_struct(target_sd, target_addr, 0);
2673 return 0;
2674 }
2675
2676 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2677 struct shmid_ds *host_sd)
2678 {
2679 struct target_shmid_ds *target_sd;
2680
2681 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2682 return -TARGET_EFAULT;
2683 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2684 return -TARGET_EFAULT;
2685 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2686 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2687 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2688 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2689 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2690 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2691 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2692 unlock_user_struct(target_sd, target_addr, 1);
2693 return 0;
2694 }
2695
2696 struct target_shminfo {
2697 abi_ulong shmmax;
2698 abi_ulong shmmin;
2699 abi_ulong shmmni;
2700 abi_ulong shmseg;
2701 abi_ulong shmall;
2702 };
2703
2704 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2705 struct shminfo *host_shminfo)
2706 {
2707 struct target_shminfo *target_shminfo;
2708 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2709 return -TARGET_EFAULT;
2710 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2711 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2712 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2713 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2714 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2715 unlock_user_struct(target_shminfo, target_addr, 1);
2716 return 0;
2717 }
2718
2719 struct target_shm_info {
2720 int used_ids;
2721 abi_ulong shm_tot;
2722 abi_ulong shm_rss;
2723 abi_ulong shm_swp;
2724 abi_ulong swap_attempts;
2725 abi_ulong swap_successes;
2726 };
2727
2728 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2729 struct shm_info *host_shm_info)
2730 {
2731 struct target_shm_info *target_shm_info;
2732 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2733 return -TARGET_EFAULT;
2734 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2735 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2736 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2737 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2738 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2739 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2740 unlock_user_struct(target_shm_info, target_addr, 1);
2741 return 0;
2742 }
2743
2744 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2745 {
2746 struct shmid_ds dsarg;
2747 struct shminfo shminfo;
2748 struct shm_info shm_info;
2749 abi_long ret = -TARGET_EINVAL;
2750
2751 cmd &= 0xff;
2752
2753 switch(cmd) {
2754 case IPC_STAT:
2755 case IPC_SET:
2756 case SHM_STAT:
2757 if (target_to_host_shmid_ds(&dsarg, buf))
2758 return -TARGET_EFAULT;
2759 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2760 if (host_to_target_shmid_ds(buf, &dsarg))
2761 return -TARGET_EFAULT;
2762 break;
2763 case IPC_INFO:
2764 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2765 if (host_to_target_shminfo(buf, &shminfo))
2766 return -TARGET_EFAULT;
2767 break;
2768 case SHM_INFO:
2769 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2770 if (host_to_target_shm_info(buf, &shm_info))
2771 return -TARGET_EFAULT;
2772 break;
2773 case IPC_RMID:
2774 case SHM_LOCK:
2775 case SHM_UNLOCK:
2776 ret = get_errno(shmctl(shmid, cmd, NULL));
2777 break;
2778 }
2779
2780 return ret;
2781 }
2782
2783 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2784 {
2785 abi_long raddr;
2786 void *host_raddr;
2787 struct shmid_ds shm_info;
2788 int i,ret;
2789
2790 /* find out the length of the shared memory segment */
2791 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2792 if (is_error(ret)) {
2793 /* can't get length, bail out */
2794 return ret;
2795 }
2796
2797 mmap_lock();
2798
2799 if (shmaddr)
2800 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2801 else {
2802 abi_ulong mmap_start;
2803
2804 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2805
2806 if (mmap_start == -1) {
2807 errno = ENOMEM;
2808 host_raddr = (void *)-1;
2809 } else
2810 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2811 }
2812
2813 if (host_raddr == (void *)-1) {
2814 mmap_unlock();
2815 return get_errno((long)host_raddr);
2816 }
2817 raddr=h2g((unsigned long)host_raddr);
2818
2819 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2820 PAGE_VALID | PAGE_READ |
2821 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2822
2823 for (i = 0; i < N_SHM_REGIONS; i++) {
2824 if (shm_regions[i].start == 0) {
2825 shm_regions[i].start = raddr;
2826 shm_regions[i].size = shm_info.shm_segsz;
2827 break;
2828 }
2829 }
2830
2831 mmap_unlock();
2832 return raddr;
2833
2834 }
2835
2836 static inline abi_long do_shmdt(abi_ulong shmaddr)
2837 {
2838 int i;
2839
2840 for (i = 0; i < N_SHM_REGIONS; ++i) {
2841 if (shm_regions[i].start == shmaddr) {
2842 shm_regions[i].start = 0;
2843 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
2844 break;
2845 }
2846 }
2847
2848 return get_errno(shmdt(g2h(shmaddr)));
2849 }
2850
2851 #ifdef TARGET_NR_ipc
2852 /* ??? This only works with linear mappings. */
2853 /* do_ipc() must return target values and target errnos. */
2854 static abi_long do_ipc(unsigned int call, int first,
2855 int second, int third,
2856 abi_long ptr, abi_long fifth)
2857 {
2858 int version;
2859 abi_long ret = 0;
2860
2861 version = call >> 16;
2862 call &= 0xffff;
2863
2864 switch (call) {
2865 case IPCOP_semop:
2866 ret = do_semop(first, ptr, second);
2867 break;
2868
2869 case IPCOP_semget:
2870 ret = get_errno(semget(first, second, third));
2871 break;
2872
2873 case IPCOP_semctl:
2874 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
2875 break;
2876
2877 case IPCOP_msgget:
2878 ret = get_errno(msgget(first, second));
2879 break;
2880
2881 case IPCOP_msgsnd:
2882 ret = do_msgsnd(first, ptr, second, third);
2883 break;
2884
2885 case IPCOP_msgctl:
2886 ret = do_msgctl(first, second, ptr);
2887 break;
2888
2889 case IPCOP_msgrcv:
2890 switch (version) {
2891 case 0:
2892 {
2893 struct target_ipc_kludge {
2894 abi_long msgp;
2895 abi_long msgtyp;
2896 } *tmp;
2897
2898 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
2899 ret = -TARGET_EFAULT;
2900 break;
2901 }
2902
2903 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
2904
2905 unlock_user_struct(tmp, ptr, 0);
2906 break;
2907 }
2908 default:
2909 ret = do_msgrcv(first, ptr, second, fifth, third);
2910 }
2911 break;
2912
2913 case IPCOP_shmat:
2914 switch (version) {
2915 default:
2916 {
2917 abi_ulong raddr;
2918 raddr = do_shmat(first, ptr, second);
2919 if (is_error(raddr))
2920 return get_errno(raddr);
2921 if (put_user_ual(raddr, third))
2922 return -TARGET_EFAULT;
2923 break;
2924 }
2925 case 1:
2926 ret = -TARGET_EINVAL;
2927 break;
2928 }
2929 break;
2930 case IPCOP_shmdt:
2931 ret = do_shmdt(ptr);
2932 break;
2933
2934 case IPCOP_shmget:
2935 /* IPC_* flag values are the same on all linux platforms */
2936 ret = get_errno(shmget(first, second, third));
2937 break;
2938
2939 /* IPC_* and SHM_* command values are the same on all linux platforms */
2940 case IPCOP_shmctl:
2941 ret = do_shmctl(first, second, third);
2942 break;
2943 default:
2944 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2945 ret = -TARGET_ENOSYS;
2946 break;
2947 }
2948 return ret;
2949 }
2950 #endif
2951
2952 /* kernel structure types definitions */
2953 #define IFNAMSIZ 16
2954
2955 #define STRUCT(name, ...) STRUCT_ ## name,
2956 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2957 enum {
2958 #include "syscall_types.h"
2959 };
2960 #undef STRUCT
2961 #undef STRUCT_SPECIAL
2962
2963 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
2964 #define STRUCT_SPECIAL(name)
2965 #include "syscall_types.h"
2966 #undef STRUCT
2967 #undef STRUCT_SPECIAL
2968
2969 typedef struct IOCTLEntry IOCTLEntry;
2970
2971 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
2972 int fd, abi_long cmd, abi_long arg);
2973
2974 struct IOCTLEntry {
2975 unsigned int target_cmd;
2976 unsigned int host_cmd;
2977 const char *name;
2978 int access;
2979 do_ioctl_fn *do_ioctl;
2980 const argtype arg_type[5];
2981 };
2982
2983 #define IOC_R 0x0001
2984 #define IOC_W 0x0002
2985 #define IOC_RW (IOC_R | IOC_W)
2986
2987 #define MAX_STRUCT_SIZE 4096
2988
2989 /* So fiemap access checks don't overflow on 32 bit systems.
2990 * This is very slightly smaller than the limit imposed by
2991 * the underlying kernel.
2992 */
2993 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
2994 / sizeof(struct fiemap_extent))
2995
2996 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
2997 int fd, abi_long cmd, abi_long arg)
2998 {
2999 /* The parameter for this ioctl is a struct fiemap followed
3000 * by an array of struct fiemap_extent whose size is set
3001 * in fiemap->fm_extent_count. The array is filled in by the
3002 * ioctl.
3003 */
3004 int target_size_in, target_size_out;
3005 struct fiemap *fm;
3006 const argtype *arg_type = ie->arg_type;
3007 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3008 void *argptr, *p;
3009 abi_long ret;
3010 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3011 uint32_t outbufsz;
3012 int free_fm = 0;
3013
3014 assert(arg_type[0] == TYPE_PTR);
3015 assert(ie->access == IOC_RW);
3016 arg_type++;
3017 target_size_in = thunk_type_size(arg_type, 0);
3018 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3019 if (!argptr) {
3020 return -TARGET_EFAULT;
3021 }
3022 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3023 unlock_user(argptr, arg, 0);
3024 fm = (struct fiemap *)buf_temp;
3025 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3026 return -TARGET_EINVAL;
3027 }
3028
3029 outbufsz = sizeof (*fm) +
3030 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3031
3032 if (outbufsz > MAX_STRUCT_SIZE) {
3033 /* We can't fit all the extents into the fixed size buffer.
3034 * Allocate one that is large enough and use it instead.
3035 */
3036 fm = malloc(outbufsz);
3037 if (!fm) {
3038 return -TARGET_ENOMEM;
3039 }
3040 memcpy(fm, buf_temp, sizeof(struct fiemap));
3041 free_fm = 1;
3042 }
3043 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3044 if (!is_error(ret)) {
3045 target_size_out = target_size_in;
3046 /* An extent_count of 0 means we were only counting the extents
3047 * so there are no structs to copy
3048 */
3049 if (fm->fm_extent_count != 0) {
3050 target_size_out += fm->fm_mapped_extents * extent_size;
3051 }
3052 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3053 if (!argptr) {
3054 ret = -TARGET_EFAULT;
3055 } else {
3056 /* Convert the struct fiemap */
3057 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3058 if (fm->fm_extent_count != 0) {
3059 p = argptr + target_size_in;
3060 /* ...and then all the struct fiemap_extents */
3061 for (i = 0; i < fm->fm_mapped_extents; i++) {
3062 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3063 THUNK_TARGET);
3064 p += extent_size;
3065 }
3066 }
3067 unlock_user(argptr, arg, target_size_out);
3068 }
3069 }
3070 if (free_fm) {
3071 free(fm);
3072 }
3073 return ret;
3074 }
3075
3076 static IOCTLEntry ioctl_entries[] = {
3077 #define IOCTL(cmd, access, ...) \
3078 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3079 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3080 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3081 #include "ioctls.h"
3082 { 0, 0, },
3083 };
3084
3085 /* ??? Implement proper locking for ioctls. */
3086 /* do_ioctl() Must return target values and target errnos. */
3087 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3088 {
3089 const IOCTLEntry *ie;
3090 const argtype *arg_type;
3091 abi_long ret;
3092 uint8_t buf_temp[MAX_STRUCT_SIZE];
3093 int target_size;
3094 void *argptr;
3095
3096 ie = ioctl_entries;
3097 for(;;) {
3098 if (ie->target_cmd == 0) {
3099 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3100 return -TARGET_ENOSYS;
3101 }
3102 if (ie->target_cmd == cmd)
3103 break;
3104 ie++;
3105 }
3106 arg_type = ie->arg_type;
3107 #if defined(DEBUG)
3108 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3109 #endif
3110 if (ie->do_ioctl) {
3111 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3112 }
3113
3114 switch(arg_type[0]) {
3115 case TYPE_NULL:
3116 /* no argument */
3117 ret = get_errno(ioctl(fd, ie->host_cmd));
3118 break;
3119 case TYPE_PTRVOID:
3120 case TYPE_INT:
3121 /* int argment */
3122 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3123 break;
3124 case TYPE_PTR:
3125 arg_type++;
3126 target_size = thunk_type_size(arg_type, 0);
3127 switch(ie->access) {
3128 case IOC_R:
3129 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3130 if (!is_error(ret)) {
3131 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3132 if (!argptr)
3133 return -TARGET_EFAULT;
3134 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3135 unlock_user(argptr, arg, target_size);
3136 }
3137 break;
3138 case IOC_W:
3139 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3140 if (!argptr)
3141 return -TARGET_EFAULT;
3142 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3143 unlock_user(argptr, arg, 0);
3144 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3145 break;
3146 default:
3147 case IOC_RW:
3148 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3149 if (!argptr)
3150 return -TARGET_EFAULT;
3151 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3152 unlock_user(argptr, arg, 0);
3153 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3154 if (!is_error(ret)) {
3155 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3156 if (!argptr)
3157 return -TARGET_EFAULT;
3158 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3159 unlock_user(argptr, arg, target_size);
3160 }
3161 break;
3162 }
3163 break;
3164 default:
3165 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3166 (long)cmd, arg_type[0]);
3167 ret = -TARGET_ENOSYS;
3168 break;
3169 }
3170 return ret;
3171 }
3172
3173 static const bitmask_transtbl iflag_tbl[] = {
3174 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3175 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3176 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3177 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3178 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3179 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3180 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3181 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3182 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3183 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3184 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3185 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3186 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3187 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3188 { 0, 0, 0, 0 }
3189 };
3190
3191 static const bitmask_transtbl oflag_tbl[] = {
3192 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3193 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3194 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3195 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3196 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3197 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3198 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3199 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3200 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3201 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3202 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3203 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3204 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3205 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3206 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3207 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3208 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3209 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3210 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3211 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3212 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3213 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3214 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3215 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3216 { 0, 0, 0, 0 }
3217 };
3218
3219 static const bitmask_transtbl cflag_tbl[] = {
3220 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3221 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3222 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3223 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3224 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3225 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3226 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3227 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3228 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3229 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3230 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3231 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3232 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3233 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3234 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3235 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3236 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3237 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3238 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3239 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3240 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3241 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3242 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3243 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3244 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3245 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3246 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3247 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3248 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3249 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3250 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3251 { 0, 0, 0, 0 }
3252 };
3253
3254 static const bitmask_transtbl lflag_tbl[] = {
3255 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3256 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3257 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3258 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3259 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3260 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3261 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3262 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3263 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3264 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3265 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3266 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3267 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3268 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3269 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3270 { 0, 0, 0, 0 }
3271 };
3272
3273 static void target_to_host_termios (void *dst, const void *src)
3274 {
3275 struct host_termios *host = dst;
3276 const struct target_termios *target = src;
3277
3278 host->c_iflag =
3279 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3280 host->c_oflag =
3281 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3282 host->c_cflag =
3283 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3284 host->c_lflag =
3285 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3286 host->c_line = target->c_line;
3287
3288 memset(host->c_cc, 0, sizeof(host->c_cc));
3289 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3290 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3291 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3292 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3293 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3294 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3295 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3296 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3297 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3298 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3299 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3300 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3301 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3302 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3303 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3304 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3305 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3306 }
3307
3308 static void host_to_target_termios (void *dst, const void *src)
3309 {
3310 struct target_termios *target = dst;
3311 const struct host_termios *host = src;
3312
3313 target->c_iflag =
3314 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3315 target->c_oflag =
3316 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3317 target->c_cflag =
3318 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3319 target->c_lflag =
3320 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3321 target->c_line = host->c_line;
3322
3323 memset(target->c_cc, 0, sizeof(target->c_cc));
3324 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3325 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3326 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3327 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3328 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3329 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3330 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3331 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3332 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3333 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3334 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3335 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3336 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3337 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3338 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3339 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3340 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3341 }
3342
3343 static const StructEntry struct_termios_def = {
3344 .convert = { host_to_target_termios, target_to_host_termios },
3345 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3346 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3347 };
3348
3349 static bitmask_transtbl mmap_flags_tbl[] = {
3350 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3351 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3352 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3353 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3354 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3355 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3356 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3357 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3358 { 0, 0, 0, 0 }
3359 };
3360
3361 #if defined(TARGET_I386)
3362
3363 /* NOTE: there is really one LDT for all the threads */
3364 static uint8_t *ldt_table;
3365
3366 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3367 {
3368 int size;
3369 void *p;
3370
3371 if (!ldt_table)
3372 return 0;
3373 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3374 if (size > bytecount)
3375 size = bytecount;
3376 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3377 if (!p)
3378 return -TARGET_EFAULT;
3379 /* ??? Should this by byteswapped? */
3380 memcpy(p, ldt_table, size);
3381 unlock_user(p, ptr, size);
3382 return size;
3383 }
3384
3385 /* XXX: add locking support */
3386 static abi_long write_ldt(CPUX86State *env,
3387 abi_ulong ptr, unsigned long bytecount, int oldmode)
3388 {
3389 struct target_modify_ldt_ldt_s ldt_info;
3390 struct target_modify_ldt_ldt_s *target_ldt_info;
3391 int seg_32bit, contents, read_exec_only, limit_in_pages;
3392 int seg_not_present, useable, lm;
3393 uint32_t *lp, entry_1, entry_2;
3394
3395 if (bytecount != sizeof(ldt_info))
3396 return -TARGET_EINVAL;
3397 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3398 return -TARGET_EFAULT;
3399 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3400 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3401 ldt_info.limit = tswap32(target_ldt_info->limit);
3402 ldt_info.flags = tswap32(target_ldt_info->flags);
3403 unlock_user_struct(target_ldt_info, ptr, 0);
3404
3405 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3406 return -TARGET_EINVAL;
3407 seg_32bit = ldt_info.flags & 1;
3408 contents = (ldt_info.flags >> 1) & 3;
3409 read_exec_only = (ldt_info.flags >> 3) & 1;
3410 limit_in_pages = (ldt_info.flags >> 4) & 1;
3411 seg_not_present = (ldt_info.flags >> 5) & 1;
3412 useable = (ldt_info.flags >> 6) & 1;
3413 #ifdef TARGET_ABI32
3414 lm = 0;
3415 #else
3416 lm = (ldt_info.flags >> 7) & 1;
3417 #endif
3418 if (contents == 3) {
3419 if (oldmode)
3420 return -TARGET_EINVAL;
3421 if (seg_not_present == 0)
3422 return -TARGET_EINVAL;
3423 }
3424 /* allocate the LDT */
3425 if (!ldt_table) {
3426 env->ldt.base = target_mmap(0,
3427 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3428 PROT_READ|PROT_WRITE,
3429 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3430 if (env->ldt.base == -1)
3431 return -TARGET_ENOMEM;
3432 memset(g2h(env->ldt.base), 0,
3433 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3434 env->ldt.limit = 0xffff;
3435 ldt_table = g2h(env->ldt.base);
3436 }
3437
3438 /* NOTE: same code as Linux kernel */
3439 /* Allow LDTs to be cleared by the user. */
3440 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3441 if (oldmode ||
3442 (contents == 0 &&
3443 read_exec_only == 1 &&
3444 seg_32bit == 0 &&
3445 limit_in_pages == 0 &&
3446 seg_not_present == 1 &&
3447 useable == 0 )) {
3448 entry_1 = 0;
3449 entry_2 = 0;
3450 goto install;
3451 }
3452 }
3453
3454 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3455 (ldt_info.limit & 0x0ffff);
3456 entry_2 = (ldt_info.base_addr & 0xff000000) |
3457 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3458 (ldt_info.limit & 0xf0000) |
3459 ((read_exec_only ^ 1) << 9) |
3460 (contents << 10) |
3461 ((seg_not_present ^ 1) << 15) |
3462 (seg_32bit << 22) |
3463 (limit_in_pages << 23) |
3464 (lm << 21) |
3465 0x7000;
3466 if (!oldmode)
3467 entry_2 |= (useable << 20);
3468
3469 /* Install the new entry ... */
3470 install:
3471 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3472 lp[0] = tswap32(entry_1);
3473 lp[1] = tswap32(entry_2);
3474 return 0;
3475 }
3476
3477 /* specific and weird i386 syscalls */
3478 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3479 unsigned long bytecount)
3480 {
3481 abi_long ret;
3482
3483 switch (func) {
3484 case 0:
3485 ret = read_ldt(ptr, bytecount);
3486 break;
3487 case 1:
3488 ret = write_ldt(env, ptr, bytecount, 1);
3489 break;
3490 case 0x11:
3491 ret = write_ldt(env, ptr, bytecount, 0);
3492 break;
3493 default:
3494 ret = -TARGET_ENOSYS;
3495 break;
3496 }
3497 return ret;
3498 }
3499
3500 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3501 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3502 {
3503 uint64_t *gdt_table = g2h(env->gdt.base);
3504 struct target_modify_ldt_ldt_s ldt_info;
3505 struct target_modify_ldt_ldt_s *target_ldt_info;
3506 int seg_32bit, contents, read_exec_only, limit_in_pages;
3507 int seg_not_present, useable, lm;
3508 uint32_t *lp, entry_1, entry_2;
3509 int i;
3510
3511 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3512 if (!target_ldt_info)
3513 return -TARGET_EFAULT;
3514 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3515 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3516 ldt_info.limit = tswap32(target_ldt_info->limit);
3517 ldt_info.flags = tswap32(target_ldt_info->flags);
3518 if (ldt_info.entry_number == -1) {
3519 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3520 if (gdt_table[i] == 0) {
3521 ldt_info.entry_number = i;
3522 target_ldt_info->entry_number = tswap32(i);
3523 break;
3524 }
3525 }
3526 }
3527 unlock_user_struct(target_ldt_info, ptr, 1);
3528
3529 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3530 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3531 return -TARGET_EINVAL;
3532 seg_32bit = ldt_info.flags & 1;
3533 contents = (ldt_info.flags >> 1) & 3;
3534 read_exec_only = (ldt_info.flags >> 3) & 1;
3535 limit_in_pages = (ldt_info.flags >> 4) & 1;
3536 seg_not_present = (ldt_info.flags >> 5) & 1;
3537 useable = (ldt_info.flags >> 6) & 1;
3538 #ifdef TARGET_ABI32
3539 lm = 0;
3540 #else
3541 lm = (ldt_info.flags >> 7) & 1;
3542 #endif
3543
3544 if (contents == 3) {
3545 if (seg_not_present == 0)
3546 return -TARGET_EINVAL;
3547 }
3548
3549 /* NOTE: same code as Linux kernel */
3550 /* Allow LDTs to be cleared by the user. */
3551 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3552 if ((contents == 0 &&
3553 read_exec_only == 1 &&
3554 seg_32bit == 0 &&
3555 limit_in_pages == 0 &&
3556 seg_not_present == 1 &&
3557 useable == 0 )) {
3558 entry_1 = 0;
3559 entry_2 = 0;
3560 goto install;
3561 }
3562 }
3563
3564 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3565 (ldt_info.limit & 0x0ffff);
3566 entry_2 = (ldt_info.base_addr & 0xff000000) |
3567 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3568 (ldt_info.limit & 0xf0000) |
3569 ((read_exec_only ^ 1) << 9) |
3570 (contents << 10) |
3571 ((seg_not_present ^ 1) << 15) |
3572 (seg_32bit << 22) |
3573 (limit_in_pages << 23) |
3574 (useable << 20) |
3575 (lm << 21) |
3576 0x7000;
3577
3578 /* Install the new entry ... */
3579 install:
3580 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3581 lp[0] = tswap32(entry_1);
3582 lp[1] = tswap32(entry_2);
3583 return 0;
3584 }
3585
3586 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3587 {
3588 struct target_modify_ldt_ldt_s *target_ldt_info;
3589 uint64_t *gdt_table = g2h(env->gdt.base);
3590 uint32_t base_addr, limit, flags;
3591 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3592 int seg_not_present, useable, lm;
3593 uint32_t *lp, entry_1, entry_2;
3594
3595 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3596 if (!target_ldt_info)
3597 return -TARGET_EFAULT;
3598 idx = tswap32(target_ldt_info->entry_number);
3599 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3600 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3601 unlock_user_struct(target_ldt_info, ptr, 1);
3602 return -TARGET_EINVAL;
3603 }
3604 lp = (uint32_t *)(gdt_table + idx);
3605 entry_1 = tswap32(lp[0]);
3606 entry_2 = tswap32(lp[1]);
3607
3608 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3609 contents = (entry_2 >> 10) & 3;
3610 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3611 seg_32bit = (entry_2 >> 22) & 1;
3612 limit_in_pages = (entry_2 >> 23) & 1;
3613 useable = (entry_2 >> 20) & 1;
3614 #ifdef TARGET_ABI32
3615 lm = 0;
3616 #else
3617 lm = (entry_2 >> 21) & 1;
3618 #endif
3619 flags = (seg_32bit << 0) | (contents << 1) |
3620 (read_exec_only << 3) | (limit_in_pages << 4) |
3621 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3622 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3623 base_addr = (entry_1 >> 16) |
3624 (entry_2 & 0xff000000) |
3625 ((entry_2 & 0xff) << 16);
3626 target_ldt_info->base_addr = tswapl(base_addr);
3627 target_ldt_info->limit = tswap32(limit);
3628 target_ldt_info->flags = tswap32(flags);
3629 unlock_user_struct(target_ldt_info, ptr, 1);
3630 return 0;
3631 }
3632 #endif /* TARGET_I386 && TARGET_ABI32 */
3633
3634 #ifndef TARGET_ABI32
3635 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3636 {
3637 abi_long ret;
3638 abi_ulong val;
3639 int idx;
3640
3641 switch(code) {
3642 case TARGET_ARCH_SET_GS:
3643 case TARGET_ARCH_SET_FS:
3644 if (code == TARGET_ARCH_SET_GS)
3645 idx = R_GS;
3646 else
3647 idx = R_FS;
3648 cpu_x86_load_seg(env, idx, 0);
3649 env->segs[idx].base = addr;
3650 break;
3651 case TARGET_ARCH_GET_GS:
3652 case TARGET_ARCH_GET_FS:
3653 if (code == TARGET_ARCH_GET_GS)
3654 idx = R_GS;
3655 else
3656 idx = R_FS;
3657 val = env->segs[idx].base;
3658 if (put_user(val, addr, abi_ulong))
3659 return -TARGET_EFAULT;
3660 break;
3661 default:
3662 ret = -TARGET_EINVAL;
3663 break;
3664 }
3665 return 0;
3666 }
3667 #endif
3668
3669 #endif /* defined(TARGET_I386) */
3670
3671 #if defined(CONFIG_USE_NPTL)
3672
3673 #define NEW_STACK_SIZE PTHREAD_STACK_MIN
3674
3675 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3676 typedef struct {
3677 CPUState *env;
3678 pthread_mutex_t mutex;
3679 pthread_cond_t cond;
3680 pthread_t thread;
3681 uint32_t tid;
3682 abi_ulong child_tidptr;
3683 abi_ulong parent_tidptr;
3684 sigset_t sigmask;
3685 } new_thread_info;
3686
3687 static void *clone_func(void *arg)
3688 {
3689 new_thread_info *info = arg;
3690 CPUState *env;
3691 TaskState *ts;
3692
3693 env = info->env;
3694 thread_env = env;
3695 ts = (TaskState *)thread_env->opaque;
3696 info->tid = gettid();
3697 env->host_tid = info->tid;
3698 task_settid(ts);
3699 if (info->child_tidptr)
3700 put_user_u32(info->tid, info->child_tidptr);
3701 if (info->parent_tidptr)
3702 put_user_u32(info->tid, info->parent_tidptr);
3703 /* Enable signals. */
3704 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3705 /* Signal to the parent that we're ready. */
3706 pthread_mutex_lock(&info->mutex);
3707 pthread_cond_broadcast(&info->cond);
3708 pthread_mutex_unlock(&info->mutex);
3709 /* Wait until the parent has finshed initializing the tls state. */
3710 pthread_mutex_lock(&clone_lock);
3711 pthread_mutex_unlock(&clone_lock);
3712 cpu_loop(env);
3713 /* never exits */
3714 return NULL;
3715 }
3716 #else
3717 /* this stack is the equivalent of the kernel stack associated with a
3718 thread/process */
3719 #define NEW_STACK_SIZE 8192
3720
3721 static int clone_func(void *arg)
3722 {
3723 CPUState *env = arg;
3724 cpu_loop(env);
3725 /* never exits */
3726 return 0;
3727 }
3728 #endif
3729
3730 /* do_fork() Must return host values and target errnos (unlike most
3731 do_*() functions). */
3732 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3733 abi_ulong parent_tidptr, target_ulong newtls,
3734 abi_ulong child_tidptr)
3735 {
3736 int ret;
3737 TaskState *ts;
3738 CPUState *new_env;
3739 #if defined(CONFIG_USE_NPTL)
3740 unsigned int nptl_flags;
3741 sigset_t sigmask;
3742 #else
3743 uint8_t *new_stack;
3744 #endif
3745
3746 /* Emulate vfork() with fork() */
3747 if (flags & CLONE_VFORK)
3748 flags &= ~(CLONE_VFORK | CLONE_VM);
3749
3750 if (flags & CLONE_VM) {
3751 TaskState *parent_ts = (TaskState *)env->opaque;
3752 #if defined(CONFIG_USE_NPTL)
3753 new_thread_info info;
3754 pthread_attr_t attr;
3755 #endif
3756 ts = qemu_mallocz(sizeof(TaskState));
3757 init_task_state(ts);
3758 /* we create a new CPU instance. */
3759 new_env = cpu_copy(env);
3760 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3761 cpu_reset(new_env);
3762 #endif
3763 /* Init regs that differ from the parent. */
3764 cpu_clone_regs(new_env, newsp);
3765 new_env->opaque = ts;
3766 ts->bprm = parent_ts->bprm;
3767 ts->info = parent_ts->info;
3768 #if defined(CONFIG_USE_NPTL)
3769 nptl_flags = flags;
3770 flags &= ~CLONE_NPTL_FLAGS2;
3771
3772 if (nptl_flags & CLONE_CHILD_CLEARTID) {
3773 ts->child_tidptr = child_tidptr;
3774 }
3775
3776 if (nptl_flags & CLONE_SETTLS)
3777 cpu_set_tls (new_env, newtls);
3778
3779 /* Grab a mutex so that thread setup appears atomic. */
3780 pthread_mutex_lock(&clone_lock);
3781
3782 memset(&info, 0, sizeof(info));
3783 pthread_mutex_init(&info.mutex, NULL);
3784 pthread_mutex_lock(&info.mutex);
3785 pthread_cond_init(&info.cond, NULL);
3786 info.env = new_env;
3787 if (nptl_flags & CLONE_CHILD_SETTID)
3788 info.child_tidptr = child_tidptr;
3789 if (nptl_flags & CLONE_PARENT_SETTID)
3790 info.parent_tidptr = parent_tidptr;
3791
3792 ret = pthread_attr_init(&attr);
3793 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
3794 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
3795 /* It is not safe to deliver signals until the child has finished
3796 initializing, so temporarily block all signals. */
3797 sigfillset(&sigmask);
3798 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
3799
3800 ret = pthread_create(&info.thread, &attr, clone_func, &info);
3801 /* TODO: Free new CPU state if thread creation failed. */
3802
3803 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
3804 pthread_attr_destroy(&attr);
3805 if (ret == 0) {
3806 /* Wait for the child to initialize. */
3807 pthread_cond_wait(&info.cond, &info.mutex);
3808 ret = info.tid;
3809 if (flags & CLONE_PARENT_SETTID)
3810 put_user_u32(ret, parent_tidptr);
3811 } else {
3812 ret = -1;
3813 }
3814 pthread_mutex_unlock(&info.mutex);
3815 pthread_cond_destroy(&info.cond);
3816 pthread_mutex_destroy(&info.mutex);
3817 pthread_mutex_unlock(&clone_lock);
3818 #else
3819 if (flags & CLONE_NPTL_FLAGS2)
3820 return -EINVAL;
3821 /* This is probably going to die very quickly, but do it anyway. */
3822 new_stack = qemu_mallocz (NEW_STACK_SIZE);
3823 #ifdef __ia64__
3824 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env);
3825 #else
3826 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3827 #endif
3828 #endif
3829 } else {
3830 /* if no CLONE_VM, we consider it is a fork */
3831 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
3832 return -EINVAL;
3833 fork_start();
3834 ret = fork();
3835 if (ret == 0) {
3836 /* Child Process. */
3837 cpu_clone_regs(env, newsp);
3838 fork_end(1);
3839 #if defined(CONFIG_USE_NPTL)
3840 /* There is a race condition here. The parent process could
3841 theoretically read the TID in the child process before the child
3842 tid is set. This would require using either ptrace
3843 (not implemented) or having *_tidptr to point at a shared memory
3844 mapping. We can't repeat the spinlock hack used above because
3845 the child process gets its own copy of the lock. */
3846 if (flags & CLONE_CHILD_SETTID)
3847 put_user_u32(gettid(), child_tidptr);
3848 if (flags & CLONE_PARENT_SETTID)
3849 put_user_u32(gettid(), parent_tidptr);
3850 ts = (TaskState *)env->opaque;
3851 if (flags & CLONE_SETTLS)
3852 cpu_set_tls (env, newtls);
3853 if (flags & CLONE_CHILD_CLEARTID)
3854 ts->child_tidptr = child_tidptr;
3855 #endif
3856 } else {
3857 fork_end(0);
3858 }
3859 }
3860 return ret;
3861 }
3862
3863 /* warning : doesn't handle linux specific flags... */
3864 static int target_to_host_fcntl_cmd(int cmd)
3865 {
3866 switch(cmd) {
3867 case TARGET_F_DUPFD:
3868 case TARGET_F_GETFD:
3869 case TARGET_F_SETFD:
3870 case TARGET_F_GETFL:
3871 case TARGET_F_SETFL:
3872 return cmd;
3873 case TARGET_F_GETLK:
3874 return F_GETLK;
3875 case TARGET_F_SETLK:
3876 return F_SETLK;
3877 case TARGET_F_SETLKW:
3878 return F_SETLKW;
3879 case TARGET_F_GETOWN:
3880 return F_GETOWN;
3881 case TARGET_F_SETOWN:
3882 return F_SETOWN;
3883 case TARGET_F_GETSIG:
3884 return F_GETSIG;
3885 case TARGET_F_SETSIG:
3886 return F_SETSIG;
3887 #if TARGET_ABI_BITS == 32
3888 case TARGET_F_GETLK64:
3889 return F_GETLK64;
3890 case TARGET_F_SETLK64:
3891 return F_SETLK64;
3892 case TARGET_F_SETLKW64:
3893 return F_SETLKW64;
3894 #endif
3895 case TARGET_F_SETLEASE:
3896 return F_SETLEASE;
3897 case TARGET_F_GETLEASE:
3898 return F_GETLEASE;
3899 #ifdef F_DUPFD_CLOEXEC
3900 case TARGET_F_DUPFD_CLOEXEC:
3901 return F_DUPFD_CLOEXEC;
3902 #endif
3903 case TARGET_F_NOTIFY:
3904 return F_NOTIFY;
3905 default:
3906 return -TARGET_EINVAL;
3907 }
3908 return -TARGET_EINVAL;
3909 }
3910
3911 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
3912 {
3913 struct flock fl;
3914 struct target_flock *target_fl;
3915 struct flock64 fl64;
3916 struct target_flock64 *target_fl64;
3917 abi_long ret;
3918 int host_cmd = target_to_host_fcntl_cmd(cmd);
3919
3920 if (host_cmd == -TARGET_EINVAL)
3921 return host_cmd;
3922
3923 switch(cmd) {
3924 case TARGET_F_GETLK:
3925 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3926 return -TARGET_EFAULT;
3927 fl.l_type = tswap16(target_fl->l_type);
3928 fl.l_whence = tswap16(target_fl->l_whence);
3929 fl.l_start = tswapl(target_fl->l_start);
3930 fl.l_len = tswapl(target_fl->l_len);
3931 fl.l_pid = tswap32(target_fl->l_pid);
3932 unlock_user_struct(target_fl, arg, 0);
3933 ret = get_errno(fcntl(fd, host_cmd, &fl));
3934 if (ret == 0) {
3935 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
3936 return -TARGET_EFAULT;
3937 target_fl->l_type = tswap16(fl.l_type);
3938 target_fl->l_whence = tswap16(fl.l_whence);
3939 target_fl->l_start = tswapl(fl.l_start);
3940 target_fl->l_len = tswapl(fl.l_len);
3941 target_fl->l_pid = tswap32(fl.l_pid);
3942 unlock_user_struct(target_fl, arg, 1);
3943 }
3944 break;
3945
3946 case TARGET_F_SETLK:
3947 case TARGET_F_SETLKW:
3948 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3949 return -TARGET_EFAULT;
3950 fl.l_type = tswap16(target_fl->l_type);
3951 fl.l_whence = tswap16(target_fl->l_whence);
3952 fl.l_start = tswapl(target_fl->l_start);
3953 fl.l_len = tswapl(target_fl->l_len);
3954 fl.l_pid = tswap32(target_fl->l_pid);
3955 unlock_user_struct(target_fl, arg, 0);
3956 ret = get_errno(fcntl(fd, host_cmd, &fl));
3957 break;
3958
3959 case TARGET_F_GETLK64:
3960 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3961 return -TARGET_EFAULT;
3962 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3963 fl64.l_whence = tswap16(target_fl64->l_whence);
3964 fl64.l_start = tswapl(target_fl64->l_start);
3965 fl64.l_len = tswapl(target_fl64->l_len);
3966 fl64.l_pid = tswap32(target_fl64->l_pid);
3967 unlock_user_struct(target_fl64, arg, 0);
3968 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3969 if (ret == 0) {
3970 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
3971 return -TARGET_EFAULT;
3972 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
3973 target_fl64->l_whence = tswap16(fl64.l_whence);
3974 target_fl64->l_start = tswapl(fl64.l_start);
3975 target_fl64->l_len = tswapl(fl64.l_len);
3976 target_fl64->l_pid = tswap32(fl64.l_pid);
3977 unlock_user_struct(target_fl64, arg, 1);
3978 }
3979 break;
3980 case TARGET_F_SETLK64:
3981 case TARGET_F_SETLKW64:
3982 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3983 return -TARGET_EFAULT;
3984 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3985 fl64.l_whence = tswap16(target_fl64->l_whence);
3986 fl64.l_start = tswapl(target_fl64->l_start);
3987 fl64.l_len = tswapl(target_fl64->l_len);
3988 fl64.l_pid = tswap32(target_fl64->l_pid);
3989 unlock_user_struct(target_fl64, arg, 0);
3990 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3991 break;
3992
3993 case TARGET_F_GETFL:
3994 ret = get_errno(fcntl(fd, host_cmd, arg));
3995 if (ret >= 0) {
3996 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
3997 }
3998 break;
3999
4000 case TARGET_F_SETFL:
4001 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
4002 break;
4003
4004 case TARGET_F_SETOWN:
4005 case TARGET_F_GETOWN:
4006 case TARGET_F_SETSIG:
4007 case TARGET_F_GETSIG:
4008 case TARGET_F_SETLEASE:
4009 case TARGET_F_GETLEASE:
4010 ret = get_errno(fcntl(fd, host_cmd, arg));
4011 break;
4012
4013 default:
4014 ret = get_errno(fcntl(fd, cmd, arg));
4015 break;
4016 }
4017 return ret;
4018 }
4019
4020 #ifdef USE_UID16
4021
4022 static inline int high2lowuid(int uid)
4023 {
4024 if (uid > 65535)
4025 return 65534;
4026 else
4027 return uid;
4028 }
4029
4030 static inline int high2lowgid(int gid)
4031 {
4032 if (gid > 65535)
4033 return 65534;
4034 else
4035 return gid;
4036 }
4037
4038 static inline int low2highuid(int uid)
4039 {
4040 if ((int16_t)uid == -1)
4041 return -1;
4042 else
4043 return uid;
4044 }
4045
4046 static inline int low2highgid(int gid)
4047 {
4048 if ((int16_t)gid == -1)
4049 return -1;
4050 else
4051 return gid;
4052 }
4053
4054 #endif /* USE_UID16 */
4055
4056 void syscall_init(void)
4057 {
4058 IOCTLEntry *ie;
4059 const argtype *arg_type;
4060 int size;
4061 int i;
4062
4063 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
4064 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
4065 #include "syscall_types.h"
4066 #undef STRUCT
4067 #undef STRUCT_SPECIAL
4068
4069 /* we patch the ioctl size if necessary. We rely on the fact that
4070 no ioctl has all the bits at '1' in the size field */
4071 ie = ioctl_entries;
4072 while (ie->target_cmd != 0) {
4073 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4074 TARGET_IOC_SIZEMASK) {
4075 arg_type = ie->arg_type;
4076 if (arg_type[0] != TYPE_PTR) {
4077 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
4078 ie->target_cmd);
4079 exit(1);
4080 }
4081 arg_type++;
4082 size = thunk_type_size(arg_type, 0);
4083 ie->target_cmd = (ie->target_cmd &
4084 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4085 (size << TARGET_IOC_SIZESHIFT);
4086 }
4087
4088 /* Build target_to_host_errno_table[] table from
4089 * host_to_target_errno_table[]. */
4090 for (i=0; i < ERRNO_TABLE_SIZE; i++)
4091 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4092
4093 /* automatic consistency check if same arch */
4094 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4095 (defined(__x86_64__) && defined(TARGET_X86_64))
4096 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4097 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4098 ie->name, ie->target_cmd, ie->host_cmd);
4099 }
4100 #endif
4101 ie++;
4102 }
4103 }
4104
4105 #if TARGET_ABI_BITS == 32
4106 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4107 {
4108 #ifdef TARGET_WORDS_BIGENDIAN
4109 return ((uint64_t)word0 << 32) | word1;
4110 #else
4111 return ((uint64_t)word1 << 32) | word0;
4112 #endif
4113 }
4114 #else /* TARGET_ABI_BITS == 32 */
4115 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4116 {
4117 return word0;
4118 }
4119 #endif /* TARGET_ABI_BITS != 32 */
4120
4121 #ifdef TARGET_NR_truncate64
4122 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4123 abi_long arg2,
4124 abi_long arg3,
4125 abi_long arg4)
4126 {
4127 #ifdef TARGET_ARM
4128 if (((CPUARMState *)cpu_env)->eabi)
4129 {
4130 arg2 = arg3;
4131 arg3 = arg4;
4132 }
4133 #endif
4134 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4135 }
4136 #endif
4137
4138 #ifdef TARGET_NR_ftruncate64
4139 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4140 abi_long arg2,
4141 abi_long arg3,
4142 abi_long arg4)
4143 {
4144 #ifdef TARGET_ARM
4145 if (((CPUARMState *)cpu_env)->eabi)
4146 {
4147 arg2 = arg3;
4148 arg3 = arg4;
4149 }
4150 #endif
4151 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4152 }
4153 #endif
4154
4155 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4156 abi_ulong target_addr)
4157 {
4158 struct target_timespec *target_ts;
4159
4160 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4161 return -TARGET_EFAULT;
4162 host_ts->tv_sec = tswapl(target_ts->tv_sec);
4163 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
4164 unlock_user_struct(target_ts, target_addr, 0);
4165 return 0;
4166 }
4167
4168 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4169 struct timespec *host_ts)
4170 {
4171 struct target_timespec *target_ts;
4172
4173 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4174 return -TARGET_EFAULT;
4175 target_ts->tv_sec = tswapl(host_ts->tv_sec);
4176 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
4177 unlock_user_struct(target_ts, target_addr, 1);
4178 return 0;
4179 }
4180
4181 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
4182 static inline abi_long host_to_target_stat64(void *cpu_env,
4183 abi_ulong target_addr,
4184 struct stat *host_st)
4185 {
4186 #ifdef TARGET_ARM
4187 if (((CPUARMState *)cpu_env)->eabi) {
4188 struct target_eabi_stat64 *target_st;
4189
4190 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4191 return -TARGET_EFAULT;
4192 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4193 __put_user(host_st->st_dev, &target_st->st_dev);
4194 __put_user(host_st->st_ino, &target_st->st_ino);
4195 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4196 __put_user(host_st->st_ino, &target_st->__st_ino);
4197 #endif
4198 __put_user(host_st->st_mode, &target_st->st_mode);
4199 __put_user(host_st->st_nlink, &target_st->st_nlink);
4200 __put_user(host_st->st_uid, &target_st->st_uid);
4201 __put_user(host_st->st_gid, &target_st->st_gid);
4202 __put_user(host_st->st_rdev, &target_st->st_rdev);
4203 __put_user(host_st->st_size, &target_st->st_size);
4204 __put_user(host_st->st_blksize, &target_st->st_blksize);
4205 __put_user(host_st->st_blocks, &target_st->st_blocks);
4206 __put_user(host_st->st_atime, &target_st->target_st_atime);
4207 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4208 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4209 unlock_user_struct(target_st, target_addr, 1);
4210 } else
4211 #endif
4212 {
4213 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
4214 struct target_stat *target_st;
4215 #else
4216 struct target_stat64 *target_st;
4217 #endif
4218
4219 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4220 return -TARGET_EFAULT;
4221 memset(target_st, 0, sizeof(*target_st));
4222 __put_user(host_st->st_dev, &target_st->st_dev);
4223 __put_user(host_st->st_ino, &target_st->st_ino);
4224 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4225 __put_user(host_st->st_ino, &target_st->__st_ino);
4226 #endif
4227 __put_user(host_st->st_mode, &target_st->st_mode);
4228 __put_user(host_st->st_nlink, &target_st->st_nlink);
4229 __put_user(host_st->st_uid, &target_st->st_uid);
4230 __put_user(host_st->st_gid, &target_st->st_gid);
4231 __put_user(host_st->st_rdev, &target_st->st_rdev);
4232 /* XXX: better use of kernel struct */
4233 __put_user(host_st->st_size, &target_st->st_size);
4234 __put_user(host_st->st_blksize, &target_st->st_blksize);
4235 __put_user(host_st->st_blocks, &target_st->st_blocks);
4236 __put_user(host_st->st_atime, &target_st->target_st_atime);
4237 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4238 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4239 unlock_user_struct(target_st, target_addr, 1);
4240 }
4241
4242 return 0;
4243 }
4244 #endif
4245
4246 #if defined(CONFIG_USE_NPTL)
4247 /* ??? Using host futex calls even when target atomic operations
4248 are not really atomic probably breaks things. However implementing
4249 futexes locally would make futexes shared between multiple processes
4250 tricky. However they're probably useless because guest atomic
4251 operations won't work either. */
4252 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4253 target_ulong uaddr2, int val3)
4254 {
4255 struct timespec ts, *pts;
4256 int base_op;
4257
4258 /* ??? We assume FUTEX_* constants are the same on both host
4259 and target. */
4260 #ifdef FUTEX_CMD_MASK
4261 base_op = op & FUTEX_CMD_MASK;
4262 #else
4263 base_op = op;
4264 #endif
4265 switch (base_op) {
4266 case FUTEX_WAIT:
4267 if (timeout) {
4268 pts = &ts;
4269 target_to_host_timespec(pts, timeout);
4270 } else {
4271 pts = NULL;
4272 }
4273 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4274 pts, NULL, 0));
4275 case FUTEX_WAKE:
4276 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4277 case FUTEX_FD:
4278 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4279 case FUTEX_REQUEUE:
4280 case FUTEX_CMP_REQUEUE:
4281 case FUTEX_WAKE_OP:
4282 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4283 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4284 But the prototype takes a `struct timespec *'; insert casts
4285 to satisfy the compiler. We do not need to tswap TIMEOUT
4286 since it's not compared to guest memory. */
4287 pts = (struct timespec *)(uintptr_t) timeout;
4288 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4289 g2h(uaddr2),
4290 (base_op == FUTEX_CMP_REQUEUE
4291 ? tswap32(val3)
4292 : val3)));
4293 default:
4294 return -TARGET_ENOSYS;
4295 }
4296 }
4297 #endif
4298
4299 /* Map host to target signal numbers for the wait family of syscalls.
4300 Assume all other status bits are the same. */
4301 static int host_to_target_waitstatus(int status)
4302 {
4303 if (WIFSIGNALED(status)) {
4304 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4305 }
4306 if (WIFSTOPPED(status)) {
4307 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4308 | (status & 0xff);
4309 }
4310 return status;
4311 }
4312
4313 int get_osversion(void)
4314 {
4315 static int osversion;
4316 struct new_utsname buf;
4317 const char *s;
4318 int i, n, tmp;
4319 if (osversion)
4320 return osversion;
4321 if (qemu_uname_release && *qemu_uname_release) {
4322 s = qemu_uname_release;
4323 } else {
4324 if (sys_uname(&buf))
4325 return 0;
4326 s = buf.release;
4327 }
4328 tmp = 0;
4329 for (i = 0; i < 3; i++) {
4330 n = 0;
4331 while (*s >= '0' && *s <= '9') {
4332 n *= 10;
4333 n += *s - '0';
4334 s++;
4335 }
4336 tmp = (tmp << 8) + n;
4337 if (*s == '.')
4338 s++;
4339 }
4340 osversion = tmp;
4341 return osversion;
4342 }
4343
4344 /* do_syscall() should always have a single exit point at the end so
4345 that actions, such as logging of syscall results, can be performed.
4346 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4347 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4348 abi_long arg2, abi_long arg3, abi_long arg4,
4349 abi_long arg5, abi_long arg6)
4350 {
4351 abi_long ret;
4352 struct stat st;
4353 struct statfs stfs;
4354 void *p;
4355
4356 #ifdef DEBUG
4357 gemu_log("syscall %d", num);
4358 #endif
4359 if(do_strace)
4360 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4361
4362 switch(num) {
4363 case TARGET_NR_exit:
4364 #ifdef CONFIG_USE_NPTL
4365 /* In old applications this may be used to implement _exit(2).
4366 However in threaded applictions it is used for thread termination,
4367 and _exit_group is used for application termination.
4368 Do thread termination if we have more then one thread. */
4369 /* FIXME: This probably breaks if a signal arrives. We should probably
4370 be disabling signals. */
4371 if (first_cpu->next_cpu) {
4372 TaskState *ts;
4373 CPUState **lastp;
4374 CPUState *p;
4375
4376 cpu_list_lock();
4377 lastp = &first_cpu;
4378 p = first_cpu;
4379 while (p && p != (CPUState *)cpu_env) {
4380 lastp = &p->next_cpu;
4381 p = p->next_cpu;
4382 }
4383 /* If we didn't find the CPU for this thread then something is
4384 horribly wrong. */
4385 if (!p)
4386 abort();
4387 /* Remove the CPU from the list. */
4388 *lastp = p->next_cpu;
4389 cpu_list_unlock();
4390 ts = ((CPUState *)cpu_env)->opaque;
4391 if (ts->child_tidptr) {
4392 put_user_u32(0, ts->child_tidptr);
4393 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4394 NULL, NULL, 0);
4395 }
4396 thread_env = NULL;
4397 qemu_free(cpu_env);
4398 qemu_free(ts);
4399 pthread_exit(NULL);
4400 }
4401 #endif
4402 #ifdef TARGET_GPROF
4403 _mcleanup();
4404 #endif
4405 gdb_exit(cpu_env, arg1);
4406 _exit(arg1);
4407 ret = 0; /* avoid warning */
4408 break;
4409 case TARGET_NR_read:
4410 if (arg3 == 0)
4411 ret = 0;
4412 else {
4413 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4414 goto efault;
4415 ret = get_errno(read(arg1, p, arg3));
4416 unlock_user(p, arg2, ret);
4417 }
4418 break;
4419 case TARGET_NR_write:
4420 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4421 goto efault;
4422 ret = get_errno(write(arg1, p, arg3));
4423 unlock_user(p, arg2, 0);
4424 break;
4425 case TARGET_NR_open:
4426 if (!(p = lock_user_string(arg1)))
4427 goto efault;
4428 ret = get_errno(open(path(p),
4429 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4430 arg3));
4431 unlock_user(p, arg1, 0);
4432 break;
4433 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4434 case TARGET_NR_openat:
4435 if (!(p = lock_user_string(arg2)))
4436 goto efault;
4437 ret = get_errno(sys_openat(arg1,
4438 path(p),
4439 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4440 arg4));
4441 unlock_user(p, arg2, 0);
4442 break;
4443 #endif
4444 case TARGET_NR_close:
4445 ret = get_errno(close(arg1));
4446 break;
4447 case TARGET_NR_brk:
4448 ret = do_brk(arg1);
4449 break;
4450 case TARGET_NR_fork:
4451 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4452 break;
4453 #ifdef TARGET_NR_waitpid
4454 case TARGET_NR_waitpid:
4455 {
4456 int status;
4457 ret = get_errno(waitpid(arg1, &status, arg3));
4458 if (!is_error(ret) && arg2
4459 && put_user_s32(host_to_target_waitstatus(status), arg2))
4460 goto efault;
4461 }
4462 break;
4463 #endif
4464 #ifdef TARGET_NR_waitid
4465 case TARGET_NR_waitid:
4466 {
4467 siginfo_t info;
4468 info.si_pid = 0;
4469 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4470 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4471 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4472 goto efault;
4473 host_to_target_siginfo(p, &info);
4474 unlock_user(p, arg3, sizeof(target_siginfo_t));
4475 }
4476 }
4477 break;
4478 #endif
4479 #ifdef TARGET_NR_creat /* not on alpha */
4480 case TARGET_NR_creat:
4481 if (!(p = lock_user_string(arg1)))
4482 goto efault;
4483 ret = get_errno(creat(p, arg2));
4484 unlock_user(p, arg1, 0);
4485 break;
4486 #endif
4487 case TARGET_NR_link:
4488 {
4489 void * p2;
4490 p = lock_user_string(arg1);
4491 p2 = lock_user_string(arg2);
4492 if (!p || !p2)
4493 ret = -TARGET_EFAULT;
4494 else
4495 ret = get_errno(link(p, p2));
4496 unlock_user(p2, arg2, 0);
4497 unlock_user(p, arg1, 0);
4498 }
4499 break;
4500 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4501 case TARGET_NR_linkat:
4502 {
4503 void * p2 = NULL;
4504 if (!arg2 || !arg4)
4505 goto efault;
4506 p = lock_user_string(arg2);
4507 p2 = lock_user_string(arg4);
4508 if (!p || !p2)
4509 ret = -TARGET_EFAULT;
4510 else
4511 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4512 unlock_user(p, arg2, 0);
4513 unlock_user(p2, arg4, 0);
4514 }
4515 break;
4516 #endif
4517 case TARGET_NR_unlink:
4518 if (!(p = lock_user_string(arg1)))
4519 goto efault;
4520 ret = get_errno(unlink(p));
4521 unlock_user(p, arg1, 0);
4522 break;
4523 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4524 case TARGET_NR_unlinkat:
4525 if (!(p = lock_user_string(arg2)))
4526 goto efault;
4527 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4528 unlock_user(p, arg2, 0);
4529 break;
4530 #endif
4531 case TARGET_NR_execve:
4532 {
4533 char **argp, **envp;
4534 int argc, envc;
4535 abi_ulong gp;
4536 abi_ulong guest_argp;
4537 abi_ulong guest_envp;
4538 abi_ulong addr;
4539 char **q;
4540
4541 argc = 0;
4542 guest_argp = arg2;
4543 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4544 if (get_user_ual(addr, gp))
4545 goto efault;
4546 if (!addr)
4547 break;
4548 argc++;
4549 }
4550 envc = 0;
4551 guest_envp = arg3;
4552 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4553 if (get_user_ual(addr, gp))
4554 goto efault;
4555 if (!addr)
4556 break;
4557 envc++;
4558 }
4559
4560 argp = alloca((argc + 1) * sizeof(void *));
4561 envp = alloca((envc + 1) * sizeof(void *));
4562
4563 for (gp = guest_argp, q = argp; gp;
4564 gp += sizeof(abi_ulong), q++) {
4565 if (get_user_ual(addr, gp))
4566 goto execve_efault;
4567 if (!addr)
4568 break;
4569 if (!(*q = lock_user_string(addr)))
4570 goto execve_efault;
4571 }
4572 *q = NULL;
4573
4574 for (gp = guest_envp, q = envp; gp;
4575 gp += sizeof(abi_ulong), q++) {
4576 if (get_user_ual(addr, gp))
4577 goto execve_efault;
4578 if (!addr)
4579 break;
4580 if (!(*q = lock_user_string(addr)))
4581 goto execve_efault;
4582 }
4583 *q = NULL;
4584
4585 if (!(p = lock_user_string(arg1)))
4586 goto execve_efault;
4587 ret = get_errno(execve(p, argp, envp));
4588 unlock_user(p, arg1, 0);
4589
4590 goto execve_end;
4591
4592 execve_efault:
4593 ret = -TARGET_EFAULT;
4594
4595 execve_end:
4596 for (gp = guest_argp, q = argp; *q;
4597 gp += sizeof(abi_ulong), q++) {
4598 if (get_user_ual(addr, gp)
4599 || !addr)
4600 break;
4601 unlock_user(*q, addr, 0);
4602 }
4603 for (gp = guest_envp, q = envp; *q;
4604 gp += sizeof(abi_ulong), q++) {
4605 if (get_user_ual(addr, gp)
4606 || !addr)
4607 break;
4608 unlock_user(*q, addr, 0);
4609 }
4610 }
4611 break;
4612 case TARGET_NR_chdir:
4613 if (!(p = lock_user_string(arg1)))
4614 goto efault;
4615 ret = get_errno(chdir(p));
4616 unlock_user(p, arg1, 0);
4617 break;
4618 #ifdef TARGET_NR_time
4619 case TARGET_NR_time:
4620 {
4621 time_t host_time;
4622 ret = get_errno(time(&host_time));
4623 if (!is_error(ret)
4624 && arg1
4625 && put_user_sal(host_time, arg1))
4626 goto efault;
4627 }
4628 break;
4629 #endif
4630 case TARGET_NR_mknod:
4631 if (!(p = lock_user_string(arg1)))
4632 goto efault;
4633 ret = get_errno(mknod(p, arg2, arg3));
4634 unlock_user(p, arg1, 0);
4635 break;
4636 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4637 case TARGET_NR_mknodat:
4638 if (!(p = lock_user_string(arg2)))
4639 goto efault;
4640 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4641 unlock_user(p, arg2, 0);
4642 break;
4643 #endif
4644 case TARGET_NR_chmod:
4645 if (!(p = lock_user_string(arg1)))
4646 goto efault;
4647 ret = get_errno(chmod(p, arg2));
4648 unlock_user(p, arg1, 0);
4649 break;
4650 #ifdef TARGET_NR_break
4651 case TARGET_NR_break:
4652 goto unimplemented;
4653 #endif
4654 #ifdef TARGET_NR_oldstat
4655 case TARGET_NR_oldstat:
4656 goto unimplemented;
4657 #endif
4658 case TARGET_NR_lseek:
4659 ret = get_errno(lseek(arg1, arg2, arg3));
4660 break;
4661 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
4662 /* Alpha specific */
4663 case TARGET_NR_getxpid:
4664 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
4665 ret = get_errno(getpid());
4666 break;
4667 #endif
4668 #ifdef TARGET_NR_getpid
4669 case TARGET_NR_getpid:
4670 ret = get_errno(getpid());
4671 break;
4672 #endif
4673 case TARGET_NR_mount:
4674 {
4675 /* need to look at the data field */
4676 void *p2, *p3;
4677 p = lock_user_string(arg1);
4678 p2 = lock_user_string(arg2);
4679 p3 = lock_user_string(arg3);
4680 if (!p || !p2 || !p3)
4681 ret = -TARGET_EFAULT;
4682 else {
4683 /* FIXME - arg5 should be locked, but it isn't clear how to
4684 * do that since it's not guaranteed to be a NULL-terminated
4685 * string.
4686 */
4687 if ( ! arg5 )
4688 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
4689 else
4690 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4691 }
4692 unlock_user(p, arg1, 0);
4693 unlock_user(p2, arg2, 0);
4694 unlock_user(p3, arg3, 0);
4695 break;
4696 }
4697 #ifdef TARGET_NR_umount
4698 case TARGET_NR_umount:
4699 if (!(p = lock_user_string(arg1)))
4700 goto efault;
4701 ret = get_errno(umount(p));
4702 unlock_user(p, arg1, 0);
4703 break;
4704 #endif
4705 #ifdef TARGET_NR_stime /* not on alpha */
4706 case TARGET_NR_stime:
4707 {
4708 time_t host_time;
4709 if (get_user_sal(host_time, arg1))
4710 goto efault;
4711 ret = get_errno(stime(&host_time));
4712 }
4713 break;
4714 #endif
4715 case TARGET_NR_ptrace:
4716 goto unimplemented;
4717 #ifdef TARGET_NR_alarm /* not on alpha */
4718 case TARGET_NR_alarm:
4719 ret = alarm(arg1);
4720 break;
4721 #endif
4722 #ifdef TARGET_NR_oldfstat
4723 case TARGET_NR_oldfstat:
4724 goto unimplemented;
4725 #endif
4726 #ifdef TARGET_NR_pause /* not on alpha */
4727 case TARGET_NR_pause:
4728 ret = get_errno(pause());
4729 break;
4730 #endif
4731 #ifdef TARGET_NR_utime
4732 case TARGET_NR_utime:
4733 {
4734 struct utimbuf tbuf, *host_tbuf;
4735 struct target_utimbuf *target_tbuf;
4736 if (arg2) {
4737 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4738 goto efault;
4739 tbuf.actime = tswapl(target_tbuf->actime);
4740 tbuf.modtime = tswapl(target_tbuf->modtime);
4741 unlock_user_struct(target_tbuf, arg2, 0);
4742 host_tbuf = &tbuf;
4743 } else {
4744 host_tbuf = NULL;
4745 }
4746 if (!(p = lock_user_string(arg1)))
4747 goto efault;
4748 ret = get_errno(utime(p, host_tbuf));
4749 unlock_user(p, arg1, 0);
4750 }
4751 break;
4752 #endif
4753 case TARGET_NR_utimes:
4754 {
4755 struct timeval *tvp, tv[2];
4756 if (arg2) {
4757 if (copy_from_user_timeval(&tv[0], arg2)
4758 || copy_from_user_timeval(&tv[1],
4759 arg2 + sizeof(struct target_timeval)))
4760 goto efault;
4761 tvp = tv;
4762 } else {
4763 tvp = NULL;
4764 }
4765 if (!(p = lock_user_string(arg1)))
4766 goto efault;
4767 ret = get_errno(utimes(p, tvp));
4768 unlock_user(p, arg1, 0);
4769 }
4770 break;
4771 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
4772 case TARGET_NR_futimesat:
4773 {
4774 struct timeval *tvp, tv[2];
4775 if (arg3) {
4776 if (copy_from_user_timeval(&tv[0], arg3)
4777 || copy_from_user_timeval(&tv[1],
4778 arg3 + sizeof(struct target_timeval)))
4779 goto efault;
4780 tvp = tv;
4781 } else {
4782 tvp = NULL;
4783 }
4784 if (!(p = lock_user_string(arg2)))
4785 goto efault;
4786 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
4787 unlock_user(p, arg2, 0);
4788 }
4789 break;
4790 #endif
4791 #ifdef TARGET_NR_stty
4792 case TARGET_NR_stty:
4793 goto unimplemented;
4794 #endif
4795 #ifdef TARGET_NR_gtty
4796 case TARGET_NR_gtty:
4797 goto unimplemented;
4798 #endif
4799 case TARGET_NR_access:
4800 if (!(p = lock_user_string(arg1)))
4801 goto efault;
4802 ret = get_errno(access(path(p), arg2));
4803 unlock_user(p, arg1, 0);
4804 break;
4805 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
4806 case TARGET_NR_faccessat:
4807 if (!(p = lock_user_string(arg2)))
4808 goto efault;
4809 ret = get_errno(sys_faccessat(arg1, p, arg3));
4810 unlock_user(p, arg2, 0);
4811 break;
4812 #endif
4813 #ifdef TARGET_NR_nice /* not on alpha */
4814 case TARGET_NR_nice:
4815 ret = get_errno(nice(arg1));
4816 break;
4817 #endif
4818 #ifdef TARGET_NR_ftime
4819 case TARGET_NR_ftime:
4820 goto unimplemented;
4821 #endif
4822 case TARGET_NR_sync:
4823 sync();
4824 ret = 0;
4825 break;
4826 case TARGET_NR_kill:
4827 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
4828 break;
4829 case TARGET_NR_rename:
4830 {
4831 void *p2;
4832 p = lock_user_string(arg1);
4833 p2 = lock_user_string(arg2);
4834 if (!p || !p2)
4835 ret = -TARGET_EFAULT;
4836 else
4837 ret = get_errno(rename(p, p2));
4838 unlock_user(p2, arg2, 0);
4839 unlock_user(p, arg1, 0);
4840 }
4841 break;
4842 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
4843 case TARGET_NR_renameat:
4844 {
4845 void *p2;
4846 p = lock_user_string(arg2);
4847 p2 = lock_user_string(arg4);
4848 if (!p || !p2)
4849 ret = -TARGET_EFAULT;
4850 else
4851 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
4852 unlock_user(p2, arg4, 0);
4853 unlock_user(p, arg2, 0);
4854 }
4855 break;
4856 #endif
4857 case TARGET_NR_mkdir:
4858 if (!(p = lock_user_string(arg1)))
4859 goto efault;
4860 ret = get_errno(mkdir(p, arg2));
4861 unlock_user(p, arg1, 0);
4862 break;
4863 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
4864 case TARGET_NR_mkdirat:
4865 if (!(p = lock_user_string(arg2)))
4866 goto efault;
4867 ret = get_errno(sys_mkdirat(arg1, p, arg3));
4868 unlock_user(p, arg2, 0);
4869 break;
4870 #endif
4871 case TARGET_NR_rmdir:
4872 if (!(p = lock_user_string(arg1)))
4873 goto efault;
4874 ret = get_errno(rmdir(p));
4875 unlock_user(p, arg1, 0);
4876 break;
4877 case TARGET_NR_dup:
4878 ret = get_errno(dup(arg1));
4879 break;
4880 case TARGET_NR_pipe:
4881 ret = do_pipe(cpu_env, arg1, 0, 0);
4882 break;
4883 #ifdef TARGET_NR_pipe2
4884 case TARGET_NR_pipe2:
4885 ret = do_pipe(cpu_env, arg1, arg2, 1);
4886 break;
4887 #endif
4888 case TARGET_NR_times:
4889 {
4890 struct target_tms *tmsp;
4891 struct tms tms;
4892 ret = get_errno(times(&tms));
4893 if (arg1) {
4894 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
4895 if (!tmsp)
4896 goto efault;
4897 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
4898 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
4899 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
4900 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
4901 }
4902 if (!is_error(ret))
4903 ret = host_to_target_clock_t(ret);
4904 }
4905 break;
4906 #ifdef TARGET_NR_prof
4907 case TARGET_NR_prof:
4908 goto unimplemented;
4909 #endif
4910 #ifdef TARGET_NR_signal
4911 case TARGET_NR_signal:
4912 goto unimplemented;
4913 #endif
4914 case TARGET_NR_acct:
4915 if (arg1 == 0) {
4916 ret = get_errno(acct(NULL));
4917 } else {
4918 if (!(p = lock_user_string(arg1)))
4919 goto efault;
4920 ret = get_errno(acct(path(p)));
4921 unlock_user(p, arg1, 0);
4922 }
4923 break;
4924 #ifdef TARGET_NR_umount2 /* not on alpha */
4925 case TARGET_NR_umount2:
4926 if (!(p = lock_user_string(arg1)))
4927 goto efault;
4928 ret = get_errno(umount2(p, arg2));
4929 unlock_user(p, arg1, 0);
4930 break;
4931 #endif
4932 #ifdef TARGET_NR_lock
4933 case TARGET_NR_lock:
4934 goto unimplemented;
4935 #endif
4936 case TARGET_NR_ioctl:
4937 ret = do_ioctl(arg1, arg2, arg3);
4938 break;
4939 case TARGET_NR_fcntl:
4940 ret = do_fcntl(arg1, arg2, arg3);
4941 break;
4942 #ifdef TARGET_NR_mpx
4943 case TARGET_NR_mpx:
4944 goto unimplemented;
4945 #endif
4946 case TARGET_NR_setpgid:
4947 ret = get_errno(setpgid(arg1, arg2));
4948 break;
4949 #ifdef TARGET_NR_ulimit
4950 case TARGET_NR_ulimit:
4951 goto unimplemented;
4952 #endif
4953 #ifdef TARGET_NR_oldolduname
4954 case TARGET_NR_oldolduname:
4955 goto unimplemented;
4956 #endif
4957 case TARGET_NR_umask:
4958 ret = get_errno(umask(arg1));
4959 break;
4960 case TARGET_NR_chroot:
4961 if (!(p = lock_user_string(arg1)))
4962 goto efault;
4963 ret = get_errno(chroot(p));
4964 unlock_user(p, arg1, 0);
4965 break;
4966 case TARGET_NR_ustat:
4967 goto unimplemented;
4968 case TARGET_NR_dup2:
4969 ret = get_errno(dup2(arg1, arg2));
4970 break;
4971 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
4972 case TARGET_NR_dup3:
4973 ret = get_errno(dup3(arg1, arg2, arg3));
4974 break;
4975 #endif
4976 #ifdef TARGET_NR_getppid /* not on alpha */
4977 case TARGET_NR_getppid:
4978 ret = get_errno(getppid());
4979 break;
4980 #endif
4981 case TARGET_NR_getpgrp:
4982 ret = get_errno(getpgrp());
4983 break;
4984 case TARGET_NR_setsid:
4985 ret = get_errno(setsid());
4986 break;
4987 #ifdef TARGET_NR_sigaction
4988 case TARGET_NR_sigaction:
4989 {
4990 #if defined(TARGET_ALPHA)
4991 struct target_sigaction act, oact, *pact = 0;
4992 struct target_old_sigaction *old_act;
4993 if (arg2) {
4994 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4995 goto efault;
4996 act._sa_handler = old_act->_sa_handler;
4997 target_siginitset(&act.sa_mask, old_act->sa_mask);
4998 act.sa_flags = old_act->sa_flags;
4999 act.sa_restorer = 0;
5000 unlock_user_struct(old_act, arg2, 0);
5001 pact = &act;
5002 }
5003 ret = get_errno(do_sigaction(arg1, pact, &oact));
5004 if (!is_error(ret) && arg3) {
5005 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5006 goto efault;
5007 old_act->_sa_handler = oact._sa_handler;
5008 old_act->sa_mask = oact.sa_mask.sig[0];
5009 old_act->sa_flags = oact.sa_flags;
5010 unlock_user_struct(old_act, arg3, 1);
5011 }
5012 #elif defined(TARGET_MIPS)
5013 struct target_sigaction act, oact, *pact, *old_act;
5014
5015 if (arg2) {
5016 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5017 goto efault;
5018 act._sa_handler = old_act->_sa_handler;
5019 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5020 act.sa_flags = old_act->sa_flags;
5021 unlock_user_struct(old_act, arg2, 0);
5022 pact = &act;
5023 } else {
5024 pact = NULL;
5025 }
5026
5027 ret = get_errno(do_sigaction(arg1, pact, &oact));
5028
5029 if (!is_error(ret) && arg3) {
5030 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5031 goto efault;
5032 old_act->_sa_handler = oact._sa_handler;
5033 old_act->sa_flags = oact.sa_flags;
5034 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5035 old_act->sa_mask.sig[1] = 0;
5036 old_act->sa_mask.sig[2] = 0;
5037 old_act->sa_mask.sig[3] = 0;
5038 unlock_user_struct(old_act, arg3, 1);
5039 }
5040 #else
5041 struct target_old_sigaction *old_act;
5042 struct target_sigaction act, oact, *pact;
5043 if (arg2) {
5044 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5045 goto efault;
5046 act._sa_handler = old_act->_sa_handler;
5047 target_siginitset(&act.sa_mask, old_act->sa_mask);
5048 act.sa_flags = old_act->sa_flags;
5049 act.sa_restorer = old_act->sa_restorer;
5050 unlock_user_struct(old_act, arg2, 0);
5051 pact = &act;
5052 } else {
5053 pact = NULL;
5054 }
5055 ret = get_errno(do_sigaction(arg1, pact, &oact));
5056 if (!is_error(ret) && arg3) {
5057 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5058 goto efault;
5059 old_act->_sa_handler = oact._sa_handler;
5060 old_act->sa_mask = oact.sa_mask.sig[0];
5061 old_act->sa_flags = oact.sa_flags;
5062 old_act->sa_restorer = oact.sa_restorer;
5063 unlock_user_struct(old_act, arg3, 1);
5064 }
5065 #endif
5066 }
5067 break;
5068 #endif
5069 case TARGET_NR_rt_sigaction:
5070 {
5071 #if defined(TARGET_ALPHA)
5072 struct target_sigaction act, oact, *pact = 0;
5073 struct target_rt_sigaction *rt_act;
5074 /* ??? arg4 == sizeof(sigset_t). */
5075 if (arg2) {
5076 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5077 goto efault;
5078 act._sa_handler = rt_act->_sa_handler;
5079 act.sa_mask = rt_act->sa_mask;
5080 act.sa_flags = rt_act->sa_flags;
5081 act.sa_restorer = arg5;
5082 unlock_user_struct(rt_act, arg2, 0);
5083 pact = &act;
5084 }
5085 ret = get_errno(do_sigaction(arg1, pact, &oact));
5086 if (!is_error(ret) && arg3) {
5087 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5088 goto efault;
5089 rt_act->_sa_handler = oact._sa_handler;
5090 rt_act->sa_mask = oact.sa_mask;
5091 rt_act->sa_flags = oact.sa_flags;
5092 unlock_user_struct(rt_act, arg3, 1);
5093 }
5094 #else
5095 struct target_sigaction *act;
5096 struct target_sigaction *oact;
5097
5098 if (arg2) {
5099 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5100 goto efault;
5101 } else
5102 act = NULL;
5103 if (arg3) {
5104 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5105 ret = -TARGET_EFAULT;
5106 goto rt_sigaction_fail;
5107 }
5108 } else
5109 oact = NULL;
5110 ret = get_errno(do_sigaction(arg1, act, oact));
5111 rt_sigaction_fail:
5112 if (act)
5113 unlock_user_struct(act, arg2, 0);
5114 if (oact)
5115 unlock_user_struct(oact, arg3, 1);
5116 #endif
5117 }
5118 break;
5119 #ifdef TARGET_NR_sgetmask /* not on alpha */
5120 case TARGET_NR_sgetmask:
5121 {
5122 sigset_t cur_set;
5123 abi_ulong target_set;
5124 sigprocmask(0, NULL, &cur_set);
5125 host_to_target_old_sigset(&target_set, &cur_set);
5126 ret = target_set;
5127 }
5128 break;
5129 #endif
5130 #ifdef TARGET_NR_ssetmask /* not on alpha */
5131 case TARGET_NR_ssetmask:
5132 {
5133 sigset_t set, oset, cur_set;
5134 abi_ulong target_set = arg1;
5135 sigprocmask(0, NULL, &cur_set);
5136 target_to_host_old_sigset(&set, &target_set);
5137 sigorset(&set, &set, &cur_set);
5138 sigprocmask(SIG_SETMASK, &set, &oset);
5139 host_to_target_old_sigset(&target_set, &oset);
5140 ret = target_set;
5141 }
5142 break;
5143 #endif
5144 #ifdef TARGET_NR_sigprocmask
5145 case TARGET_NR_sigprocmask:
5146 {
5147 #if defined(TARGET_ALPHA)
5148 sigset_t set, oldset;
5149 abi_ulong mask;
5150 int how;
5151
5152 switch (arg1) {
5153 case TARGET_SIG_BLOCK:
5154 how = SIG_BLOCK;
5155 break;
5156 case TARGET_SIG_UNBLOCK:
5157 how = SIG_UNBLOCK;
5158 break;
5159 case TARGET_SIG_SETMASK:
5160 how = SIG_SETMASK;
5161 break;
5162 default:
5163 ret = -TARGET_EINVAL;
5164 goto fail;
5165 }
5166 mask = arg2;
5167 target_to_host_old_sigset(&set, &mask);
5168
5169 ret = get_errno(sigprocmask(how, &set, &oldset));
5170
5171 if (!is_error(ret)) {
5172 host_to_target_old_sigset(&mask, &oldset);
5173 ret = mask;
5174 ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */
5175 }
5176 #else
5177 sigset_t set, oldset, *set_ptr;
5178 int how;
5179
5180 if (arg2) {
5181 switch (arg1) {
5182 case TARGET_SIG_BLOCK:
5183 how = SIG_BLOCK;
5184 break;
5185 case TARGET_SIG_UNBLOCK:
5186 how = SIG_UNBLOCK;
5187 break;
5188 case TARGET_SIG_SETMASK:
5189 how = SIG_SETMASK;
5190 break;
5191 default:
5192 ret = -TARGET_EINVAL;
5193 goto fail;
5194 }
5195 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5196 goto efault;
5197 target_to_host_old_sigset(&set, p);
5198 unlock_user(p, arg2, 0);
5199 set_ptr = &set;
5200 } else {
5201 how = 0;
5202 set_ptr = NULL;
5203 }
5204 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5205 if (!is_error(ret) && arg3) {
5206 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5207 goto efault;
5208 host_to_target_old_sigset(p, &oldset);
5209 unlock_user(p, arg3, sizeof(target_sigset_t));
5210 }
5211 #endif
5212 }
5213 break;
5214 #endif
5215 case TARGET_NR_rt_sigprocmask:
5216 {
5217 int how = arg1;
5218 sigset_t set, oldset, *set_ptr;
5219
5220 if (arg2) {
5221 switch(how) {
5222 case TARGET_SIG_BLOCK:
5223 how = SIG_BLOCK;
5224 break;
5225 case TARGET_SIG_UNBLOCK:
5226 how = SIG_UNBLOCK;
5227 break;
5228 case TARGET_SIG_SETMASK:
5229 how = SIG_SETMASK;
5230 break;
5231 default:
5232 ret = -TARGET_EINVAL;
5233 goto fail;
5234 }
5235 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5236 goto efault;
5237 target_to_host_sigset(&set, p);
5238 unlock_user(p, arg2, 0);
5239 set_ptr = &set;
5240 } else {
5241 how = 0;
5242 set_ptr = NULL;
5243 }
5244 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5245 if (!is_error(ret) && arg3) {
5246 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5247 goto efault;
5248 host_to_target_sigset(p, &oldset);
5249 unlock_user(p, arg3, sizeof(target_sigset_t));
5250 }
5251 }
5252 break;
5253 #ifdef TARGET_NR_sigpending
5254 case TARGET_NR_sigpending:
5255 {
5256 sigset_t set;
5257 ret = get_errno(sigpending(&set));
5258 if (!is_error(ret)) {
5259 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5260 goto efault;
5261 host_to_target_old_sigset(p, &set);
5262 unlock_user(p, arg1, sizeof(target_sigset_t));
5263 }
5264 }
5265 break;
5266 #endif
5267 case TARGET_NR_rt_sigpending:
5268 {
5269 sigset_t set;
5270 ret = get_errno(sigpending(&set));
5271 if (!is_error(ret)) {
5272 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5273 goto efault;
5274 host_to_target_sigset(p, &set);
5275 unlock_user(p, arg1, sizeof(target_sigset_t));
5276 }
5277 }
5278 break;
5279 #ifdef TARGET_NR_sigsuspend
5280 case TARGET_NR_sigsuspend:
5281 {
5282 sigset_t set;
5283 #if defined(TARGET_ALPHA)
5284 abi_ulong mask = arg1;
5285 target_to_host_old_sigset(&set, &mask);
5286 #else
5287 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5288 goto efault;
5289 target_to_host_old_sigset(&set, p);
5290 unlock_user(p, arg1, 0);
5291 #endif
5292 ret = get_errno(sigsuspend(&set));
5293 }
5294 break;
5295 #endif
5296 case TARGET_NR_rt_sigsuspend:
5297 {
5298 sigset_t set;
5299 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5300 goto efault;
5301 target_to_host_sigset(&set, p);
5302 unlock_user(p, arg1, 0);
5303 ret = get_errno(sigsuspend(&set));
5304 }
5305 break;
5306 case TARGET_NR_rt_sigtimedwait:
5307 {
5308 sigset_t set;
5309 struct timespec uts, *puts;
5310 siginfo_t uinfo;
5311
5312 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5313 goto efault;
5314 target_to_host_sigset(&set, p);
5315 unlock_user(p, arg1, 0);
5316 if (arg3) {
5317 puts = &uts;
5318 target_to_host_timespec(puts, arg3);
5319 } else {
5320 puts = NULL;
5321 }
5322 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5323 if (!is_error(ret) && arg2) {
5324 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5325 goto efault;
5326 host_to_target_siginfo(p, &uinfo);
5327 unlock_user(p, arg2, sizeof(target_siginfo_t));
5328 }
5329 }
5330 break;
5331 case TARGET_NR_rt_sigqueueinfo:
5332 {
5333 siginfo_t uinfo;
5334 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5335 goto efault;
5336 target_to_host_siginfo(&uinfo, p);
5337 unlock_user(p, arg1, 0);
5338 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5339 }
5340 break;
5341 #ifdef TARGET_NR_sigreturn
5342 case TARGET_NR_sigreturn:
5343 /* NOTE: ret is eax, so not transcoding must be done */
5344 ret = do_sigreturn(cpu_env);
5345 break;
5346 #endif
5347 case TARGET_NR_rt_sigreturn:
5348 /* NOTE: ret is eax, so not transcoding must be done */
5349 ret = do_rt_sigreturn(cpu_env);
5350 break;
5351 case TARGET_NR_sethostname:
5352 if (!(p = lock_user_string(arg1)))
5353 goto efault;
5354 ret = get_errno(sethostname(p, arg2));
5355 unlock_user(p, arg1, 0);
5356 break;
5357 case TARGET_NR_setrlimit:
5358 {
5359 int resource = arg1;
5360 struct target_rlimit *target_rlim;
5361 struct rlimit rlim;
5362 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5363 goto efault;
5364 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
5365 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
5366 unlock_user_struct(target_rlim, arg2, 0);
5367 ret = get_errno(setrlimit(resource, &rlim));
5368 }
5369 break;
5370 case TARGET_NR_getrlimit:
5371 {
5372 int resource = arg1;
5373 struct target_rlimit *target_rlim;
5374 struct rlimit rlim;
5375
5376 ret = get_errno(getrlimit(resource, &rlim));
5377 if (!is_error(ret)) {
5378 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5379 goto efault;
5380 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
5381 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
5382 unlock_user_struct(target_rlim, arg2, 1);
5383 }
5384 }
5385 break;
5386 case TARGET_NR_getrusage:
5387 {
5388 struct rusage rusage;
5389 ret = get_errno(getrusage(arg1, &rusage));
5390 if (!is_error(ret)) {
5391 host_to_target_rusage(arg2, &rusage);
5392 }
5393 }
5394 break;
5395 case TARGET_NR_gettimeofday:
5396 {
5397 struct timeval tv;
5398 ret = get_errno(gettimeofday(&tv, NULL));
5399 if (!is_error(ret)) {
5400 if (copy_to_user_timeval(arg1, &tv))
5401 goto efault;
5402 }
5403 }
5404 break;
5405 case TARGET_NR_settimeofday:
5406 {
5407 struct timeval tv;
5408 if (copy_from_user_timeval(&tv, arg1))
5409 goto efault;
5410 ret = get_errno(settimeofday(&tv, NULL));
5411 }
5412 break;
5413 #ifdef TARGET_NR_select
5414 case TARGET_NR_select:
5415 {
5416 struct target_sel_arg_struct *sel;
5417 abi_ulong inp, outp, exp, tvp;
5418 long nsel;
5419
5420 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5421 goto efault;
5422 nsel = tswapl(sel->n);
5423 inp = tswapl(sel->inp);
5424 outp = tswapl(sel->outp);
5425 exp = tswapl(sel->exp);
5426 tvp = tswapl(sel->tvp);
5427 unlock_user_struct(sel, arg1, 0);
5428 ret = do_select(nsel, inp, outp, exp, tvp);
5429 }
5430 break;
5431 #endif
5432 #ifdef TARGET_NR_pselect6
5433 case TARGET_NR_pselect6:
5434 goto unimplemented_nowarn;
5435 #endif
5436 case TARGET_NR_symlink:
5437 {
5438 void *p2;
5439 p = lock_user_string(arg1);
5440 p2 = lock_user_string(arg2);
5441 if (!p || !p2)
5442 ret = -TARGET_EFAULT;
5443 else
5444 ret = get_errno(symlink(p, p2));
5445 unlock_user(p2, arg2, 0);
5446 unlock_user(p, arg1, 0);
5447 }
5448 break;
5449 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5450 case TARGET_NR_symlinkat:
5451 {
5452 void *p2;
5453 p = lock_user_string(arg1);
5454 p2 = lock_user_string(arg3);
5455 if (!p || !p2)
5456 ret = -TARGET_EFAULT;
5457 else
5458 ret = get_errno(sys_symlinkat(p, arg2, p2));
5459 unlock_user(p2, arg3, 0);
5460 unlock_user(p, arg1, 0);
5461 }
5462 break;
5463 #endif
5464 #ifdef TARGET_NR_oldlstat
5465 case TARGET_NR_oldlstat:
5466 goto unimplemented;
5467 #endif
5468 case TARGET_NR_readlink:
5469 {
5470 void *p2, *temp;
5471 p = lock_user_string(arg1);
5472 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5473 if (!p || !p2)
5474 ret = -TARGET_EFAULT;
5475 else {
5476 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5477 char real[PATH_MAX];
5478 temp = realpath(exec_path,real);
5479 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5480 snprintf((char *)p2, arg3, "%s", real);
5481 }
5482 else
5483 ret = get_errno(readlink(path(p), p2, arg3));
5484 }
5485 unlock_user(p2, arg2, ret);
5486 unlock_user(p, arg1, 0);
5487 }
5488 break;
5489 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5490 case TARGET_NR_readlinkat:
5491 {
5492 void *p2;
5493 p = lock_user_string(arg2);
5494 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5495 if (!p || !p2)
5496 ret = -TARGET_EFAULT;
5497 else
5498 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5499 unlock_user(p2, arg3, ret);
5500 unlock_user(p, arg2, 0);
5501 }
5502 break;
5503 #endif
5504 #ifdef TARGET_NR_uselib
5505 case TARGET_NR_uselib:
5506 goto unimplemented;
5507 #endif
5508 #ifdef TARGET_NR_swapon
5509 case TARGET_NR_swapon:
5510 if (!(p = lock_user_string(arg1)))
5511 goto efault;
5512 ret = get_errno(swapon(p, arg2));
5513 unlock_user(p, arg1, 0);
5514 break;
5515 #endif
5516 case TARGET_NR_reboot:
5517 goto unimplemented;
5518 #ifdef TARGET_NR_readdir
5519 case TARGET_NR_readdir:
5520 goto unimplemented;
5521 #endif
5522 #ifdef TARGET_NR_mmap
5523 case TARGET_NR_mmap:
5524 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5525 {
5526 abi_ulong *v;
5527 abi_ulong v1, v2, v3, v4, v5, v6;
5528 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5529 goto efault;
5530 v1 = tswapl(v[0]);
5531 v2 = tswapl(v[1]);
5532 v3 = tswapl(v[2]);
5533 v4 = tswapl(v[3]);
5534 v5 = tswapl(v[4]);
5535 v6 = tswapl(v[5]);
5536 unlock_user(v, arg1, 0);
5537 ret = get_errno(target_mmap(v1, v2, v3,
5538 target_to_host_bitmask(v4, mmap_flags_tbl),
5539 v5, v6));
5540 }
5541 #else
5542 ret = get_errno(target_mmap(arg1, arg2, arg3,
5543 target_to_host_bitmask(arg4, mmap_flags_tbl),
5544 arg5,
5545 arg6));
5546 #endif
5547 break;
5548 #endif
5549 #ifdef TARGET_NR_mmap2
5550 case TARGET_NR_mmap2:
5551 #ifndef MMAP_SHIFT
5552 #define MMAP_SHIFT 12
5553 #endif
5554 ret = get_errno(target_mmap(arg1, arg2, arg3,
5555 target_to_host_bitmask(arg4, mmap_flags_tbl),
5556 arg5,
5557 arg6 << MMAP_SHIFT));
5558 break;
5559 #endif
5560 case TARGET_NR_munmap:
5561 ret = get_errno(target_munmap(arg1, arg2));
5562 break;
5563 case TARGET_NR_mprotect:
5564 {
5565 TaskState *ts = ((CPUState *)cpu_env)->opaque;
5566 /* Special hack to detect libc making the stack executable. */
5567 if ((arg3 & PROT_GROWSDOWN)
5568 && arg1 >= ts->info->stack_limit
5569 && arg1 <= ts->info->start_stack) {
5570 arg3 &= ~PROT_GROWSDOWN;
5571 arg2 = arg2 + arg1 - ts->info->stack_limit;
5572 arg1 = ts->info->stack_limit;
5573 }
5574 }
5575 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5576 break;
5577 #ifdef TARGET_NR_mremap
5578 case TARGET_NR_mremap:
5579 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5580 break;
5581 #endif
5582 /* ??? msync/mlock/munlock are broken for softmmu. */
5583 #ifdef TARGET_NR_msync
5584 case TARGET_NR_msync:
5585 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5586 break;
5587 #endif
5588 #ifdef TARGET_NR_mlock
5589 case TARGET_NR_mlock:
5590 ret = get_errno(mlock(g2h(arg1), arg2));
5591 break;
5592 #endif
5593 #ifdef TARGET_NR_munlock
5594 case TARGET_NR_munlock:
5595 ret = get_errno(munlock(g2h(arg1), arg2));
5596 break;
5597 #endif
5598 #ifdef TARGET_NR_mlockall
5599 case TARGET_NR_mlockall:
5600 ret = get_errno(mlockall(arg1));
5601 break;
5602 #endif
5603 #ifdef TARGET_NR_munlockall
5604 case TARGET_NR_munlockall:
5605 ret = get_errno(munlockall());
5606 break;
5607 #endif
5608 case TARGET_NR_truncate:
5609 if (!(p = lock_user_string(arg1)))
5610 goto efault;
5611 ret = get_errno(truncate(p, arg2));
5612 unlock_user(p, arg1, 0);
5613 break;
5614 case TARGET_NR_ftruncate:
5615 ret = get_errno(ftruncate(arg1, arg2));
5616 break;
5617 case TARGET_NR_fchmod:
5618 ret = get_errno(fchmod(arg1, arg2));
5619 break;
5620 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5621 case TARGET_NR_fchmodat:
5622 if (!(p = lock_user_string(arg2)))
5623 goto efault;
5624 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5625 unlock_user(p, arg2, 0);
5626 break;
5627 #endif
5628 case TARGET_NR_getpriority:
5629 /* libc does special remapping of the return value of
5630 * sys_getpriority() so it's just easiest to call
5631 * sys_getpriority() directly rather than through libc. */
5632 ret = get_errno(sys_getpriority(arg1, arg2));
5633 break;
5634 case TARGET_NR_setpriority:
5635 ret = get_errno(setpriority(arg1, arg2, arg3));
5636 break;
5637 #ifdef TARGET_NR_profil
5638 case TARGET_NR_profil:
5639 goto unimplemented;
5640 #endif
5641 case TARGET_NR_statfs:
5642 if (!(p = lock_user_string(arg1)))
5643 goto efault;
5644 ret = get_errno(statfs(path(p), &stfs));
5645 unlock_user(p, arg1, 0);
5646 convert_statfs:
5647 if (!is_error(ret)) {
5648 struct target_statfs *target_stfs;
5649
5650 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5651 goto efault;
5652 __put_user(stfs.f_type, &target_stfs->f_type);
5653 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5654 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5655 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5656 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5657 __put_user(stfs.f_files, &target_stfs->f_files);
5658 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5659 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5660 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5661 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5662 unlock_user_struct(target_stfs, arg2, 1);
5663 }
5664 break;
5665 case TARGET_NR_fstatfs:
5666 ret = get_errno(fstatfs(arg1, &stfs));
5667 goto convert_statfs;
5668 #ifdef TARGET_NR_statfs64
5669 case TARGET_NR_statfs64:
5670 if (!(p = lock_user_string(arg1)))
5671 goto efault;
5672 ret = get_errno(statfs(path(p), &stfs));
5673 unlock_user(p, arg1, 0);
5674 convert_statfs64:
5675 if (!is_error(ret)) {
5676 struct target_statfs64 *target_stfs;
5677
5678 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5679 goto efault;
5680 __put_user(stfs.f_type, &target_stfs->f_type);
5681 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5682 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5683 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5684 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5685 __put_user(stfs.f_files, &target_stfs->f_files);
5686 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5687 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5688 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5689 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5690 unlock_user_struct(target_stfs, arg3, 1);
5691 }
5692 break;
5693 case TARGET_NR_fstatfs64:
5694 ret = get_errno(fstatfs(arg1, &stfs));
5695 goto convert_statfs64;
5696 #endif
5697 #ifdef TARGET_NR_ioperm
5698 case TARGET_NR_ioperm:
5699 goto unimplemented;
5700 #endif
5701 #ifdef TARGET_NR_socketcall
5702 case TARGET_NR_socketcall:
5703 ret = do_socketcall(arg1, arg2);
5704 break;
5705 #endif
5706 #ifdef TARGET_NR_accept
5707 case TARGET_NR_accept:
5708 ret = do_accept(arg1, arg2, arg3);
5709 break;
5710 #endif
5711 #ifdef TARGET_NR_bind
5712 case TARGET_NR_bind:
5713 ret = do_bind(arg1, arg2, arg3);
5714 break;
5715 #endif
5716 #ifdef TARGET_NR_connect
5717 case TARGET_NR_connect:
5718 ret = do_connect(arg1, arg2, arg3);
5719 break;
5720 #endif
5721 #ifdef TARGET_NR_getpeername
5722 case TARGET_NR_getpeername:
5723 ret = do_getpeername(arg1, arg2, arg3);
5724 break;
5725 #endif
5726 #ifdef TARGET_NR_getsockname
5727 case TARGET_NR_getsockname:
5728 ret = do_getsockname(arg1, arg2, arg3);
5729 break;
5730 #endif
5731 #ifdef TARGET_NR_getsockopt
5732 case TARGET_NR_getsockopt:
5733 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5734 break;
5735 #endif
5736 #ifdef TARGET_NR_listen
5737 case TARGET_NR_listen:
5738 ret = get_errno(listen(arg1, arg2));
5739 break;
5740 #endif
5741 #ifdef TARGET_NR_recv
5742 case TARGET_NR_recv:
5743 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5744 break;
5745 #endif
5746 #ifdef TARGET_NR_recvfrom
5747 case TARGET_NR_recvfrom:
5748 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5749 break;
5750 #endif
5751 #ifdef TARGET_NR_recvmsg
5752 case TARGET_NR_recvmsg:
5753 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5754 break;
5755 #endif
5756 #ifdef TARGET_NR_send
5757 case TARGET_NR_send:
5758 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5759 break;
5760 #endif
5761 #ifdef TARGET_NR_sendmsg
5762 case TARGET_NR_sendmsg:
5763 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5764 break;
5765 #endif
5766 #ifdef TARGET_NR_sendto
5767 case TARGET_NR_sendto:
5768 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5769 break;
5770 #endif
5771 #ifdef TARGET_NR_shutdown
5772 case TARGET_NR_shutdown:
5773 ret = get_errno(shutdown(arg1, arg2));
5774 break;
5775 #endif
5776 #ifdef TARGET_NR_socket
5777 case TARGET_NR_socket:
5778 ret = do_socket(arg1, arg2, arg3);
5779 break;
5780 #endif
5781 #ifdef TARGET_NR_socketpair
5782 case TARGET_NR_socketpair:
5783 ret = do_socketpair(arg1, arg2, arg3, arg4);
5784 break;
5785 #endif
5786 #ifdef TARGET_NR_setsockopt
5787 case TARGET_NR_setsockopt:
5788 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5789 break;
5790 #endif
5791
5792 case TARGET_NR_syslog:
5793 if (!(p = lock_user_string(arg2)))
5794 goto efault;
5795 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5796 unlock_user(p, arg2, 0);
5797 break;
5798
5799 case TARGET_NR_setitimer:
5800 {
5801 struct itimerval value, ovalue, *pvalue;
5802
5803 if (arg2) {
5804 pvalue = &value;
5805 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5806 || copy_from_user_timeval(&pvalue->it_value,
5807 arg2 + sizeof(struct target_timeval)))
5808 goto efault;
5809 } else {
5810 pvalue = NULL;
5811 }
5812 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5813 if (!is_error(ret) && arg3) {
5814 if (copy_to_user_timeval(arg3,
5815 &ovalue.it_interval)
5816 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5817 &ovalue.it_value))
5818 goto efault;
5819 }
5820 }
5821 break;
5822 case TARGET_NR_getitimer:
5823 {
5824 struct itimerval value;
5825
5826 ret = get_errno(getitimer(arg1, &value));
5827 if (!is_error(ret) && arg2) {
5828 if (copy_to_user_timeval(arg2,
5829 &value.it_interval)
5830 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5831 &value.it_value))
5832 goto efault;
5833 }
5834 }
5835 break;
5836 case TARGET_NR_stat:
5837 if (!(p = lock_user_string(arg1)))
5838 goto efault;
5839 ret = get_errno(stat(path(p), &st));
5840 unlock_user(p, arg1, 0);
5841 goto do_stat;
5842 case TARGET_NR_lstat:
5843 if (!(p = lock_user_string(arg1)))
5844 goto efault;
5845 ret = get_errno(lstat(path(p), &st));
5846 unlock_user(p, arg1, 0);
5847 goto do_stat;
5848 case TARGET_NR_fstat:
5849 {
5850 ret = get_errno(fstat(arg1, &st));
5851 do_stat:
5852 if (!is_error(ret)) {
5853 struct target_stat *target_st;
5854
5855 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5856 goto efault;
5857 memset(target_st, 0, sizeof(*target_st));
5858 __put_user(st.st_dev, &target_st->st_dev);
5859 __put_user(st.st_ino, &target_st->st_ino);
5860 __put_user(st.st_mode, &target_st->st_mode);
5861 __put_user(st.st_uid, &target_st->st_uid);
5862 __put_user(st.st_gid, &target_st->st_gid);
5863 __put_user(st.st_nlink, &target_st->st_nlink);
5864 __put_user(st.st_rdev, &target_st->st_rdev);
5865 __put_user(st.st_size, &target_st->st_size);
5866 __put_user(st.st_blksize, &target_st->st_blksize);
5867 __put_user(st.st_blocks, &target_st->st_blocks);
5868 __put_user(st.st_atime, &target_st->target_st_atime);
5869 __put_user(st.st_mtime, &target_st->target_st_mtime);
5870 __put_user(st.st_ctime, &target_st->target_st_ctime);
5871 unlock_user_struct(target_st, arg2, 1);
5872 }
5873 }
5874 break;
5875 #ifdef TARGET_NR_olduname
5876 case TARGET_NR_olduname:
5877 goto unimplemented;
5878 #endif
5879 #ifdef TARGET_NR_iopl
5880 case TARGET_NR_iopl:
5881 goto unimplemented;
5882 #endif
5883 case TARGET_NR_vhangup:
5884 ret = get_errno(vhangup());
5885 break;
5886 #ifdef TARGET_NR_idle
5887 case TARGET_NR_idle:
5888 goto unimplemented;
5889 #endif
5890 #ifdef TARGET_NR_syscall
5891 case TARGET_NR_syscall:
5892 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5893 break;
5894 #endif
5895 case TARGET_NR_wait4:
5896 {
5897 int status;
5898 abi_long status_ptr = arg2;
5899 struct rusage rusage, *rusage_ptr;
5900 abi_ulong target_rusage = arg4;
5901 if (target_rusage)
5902 rusage_ptr = &rusage;
5903 else
5904 rusage_ptr = NULL;
5905 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5906 if (!is_error(ret)) {
5907 if (status_ptr) {
5908 status = host_to_target_waitstatus(status);
5909 if (put_user_s32(status, status_ptr))
5910 goto efault;
5911 }
5912 if (target_rusage)
5913 host_to_target_rusage(target_rusage, &rusage);
5914 }
5915 }
5916 break;
5917 #ifdef TARGET_NR_swapoff
5918 case TARGET_NR_swapoff:
5919 if (!(p = lock_user_string(arg1)))
5920 goto efault;
5921 ret = get_errno(swapoff(p));
5922 unlock_user(p, arg1, 0);
5923 break;
5924 #endif
5925 case TARGET_NR_sysinfo:
5926 {
5927 struct target_sysinfo *target_value;
5928 struct sysinfo value;
5929 ret = get_errno(sysinfo(&value));
5930 if (!is_error(ret) && arg1)
5931 {
5932 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5933 goto efault;
5934 __put_user(value.uptime, &target_value->uptime);
5935 __put_user(value.loads[0], &target_value->loads[0]);
5936 __put_user(value.loads[1], &target_value->loads[1]);
5937 __put_user(value.loads[2], &target_value->loads[2]);
5938 __put_user(value.totalram, &target_value->totalram);
5939 __put_user(value.freeram, &target_value->freeram);
5940 __put_user(value.sharedram, &target_value->sharedram);
5941 __put_user(value.bufferram, &target_value->bufferram);
5942 __put_user(value.totalswap, &target_value->totalswap);
5943 __put_user(value.freeswap, &target_value->freeswap);
5944 __put_user(value.procs, &target_value->procs);
5945 __put_user(value.totalhigh, &target_value->totalhigh);
5946 __put_user(value.freehigh, &target_value->freehigh);
5947 __put_user(value.mem_unit, &target_value->mem_unit);
5948 unlock_user_struct(target_value, arg1, 1);
5949 }
5950 }
5951 break;
5952 #ifdef TARGET_NR_ipc
5953 case TARGET_NR_ipc:
5954 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5955 break;
5956 #endif
5957 #ifdef TARGET_NR_semget
5958 case TARGET_NR_semget:
5959 ret = get_errno(semget(arg1, arg2, arg3));
5960 break;
5961 #endif
5962 #ifdef TARGET_NR_semop
5963 case TARGET_NR_semop:
5964 ret = get_errno(do_semop(arg1, arg2, arg3));
5965 break;
5966 #endif
5967 #ifdef TARGET_NR_semctl
5968 case TARGET_NR_semctl:
5969 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5970 break;
5971 #endif
5972 #ifdef TARGET_NR_msgctl
5973 case TARGET_NR_msgctl:
5974 ret = do_msgctl(arg1, arg2, arg3);
5975 break;
5976 #endif
5977 #ifdef TARGET_NR_msgget
5978 case TARGET_NR_msgget:
5979 ret = get_errno(msgget(arg1, arg2));
5980 break;
5981 #endif
5982 #ifdef TARGET_NR_msgrcv
5983 case TARGET_NR_msgrcv:
5984 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
5985 break;
5986 #endif
5987 #ifdef TARGET_NR_msgsnd
5988 case TARGET_NR_msgsnd:
5989 ret = do_msgsnd(arg1, arg2, arg3, arg4);
5990 break;
5991 #endif
5992 #ifdef TARGET_NR_shmget
5993 case TARGET_NR_shmget:
5994 ret = get_errno(shmget(arg1, arg2, arg3));
5995 break;
5996 #endif
5997 #ifdef TARGET_NR_shmctl
5998 case TARGET_NR_shmctl:
5999 ret = do_shmctl(arg1, arg2, arg3);
6000 break;
6001 #endif
6002 #ifdef TARGET_NR_shmat
6003 case TARGET_NR_shmat:
6004 ret = do_shmat(arg1, arg2, arg3);
6005 break;
6006 #endif
6007 #ifdef TARGET_NR_shmdt
6008 case TARGET_NR_shmdt:
6009 ret = do_shmdt(arg1);
6010 break;
6011 #endif
6012 case TARGET_NR_fsync:
6013 ret = get_errno(fsync(arg1));
6014 break;
6015 case TARGET_NR_clone:
6016 #if defined(TARGET_SH4) || defined(TARGET_ALPHA)
6017 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6018 #elif defined(TARGET_CRIS)
6019 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
6020 #else
6021 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6022 #endif
6023 break;
6024 #ifdef __NR_exit_group
6025 /* new thread calls */
6026 case TARGET_NR_exit_group:
6027 #ifdef TARGET_GPROF
6028 _mcleanup();
6029 #endif
6030 gdb_exit(cpu_env, arg1);
6031 ret = get_errno(exit_group(arg1));
6032 break;
6033 #endif
6034 case TARGET_NR_setdomainname:
6035 if (!(p = lock_user_string(arg1)))
6036 goto efault;
6037 ret = get_errno(setdomainname(p, arg2));
6038 unlock_user(p, arg1, 0);
6039 break;
6040 case TARGET_NR_uname:
6041 /* no need to transcode because we use the linux syscall */
6042 {
6043 struct new_utsname * buf;
6044
6045 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6046 goto efault;
6047 ret = get_errno(sys_uname(buf));
6048 if (!is_error(ret)) {
6049 /* Overrite the native machine name with whatever is being
6050 emulated. */
6051 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6052 /* Allow the user to override the reported release. */
6053 if (qemu_uname_release && *qemu_uname_release)
6054 strcpy (buf->release, qemu_uname_release);
6055 }
6056 unlock_user_struct(buf, arg1, 1);
6057 }
6058 break;
6059 #ifdef TARGET_I386
6060 case TARGET_NR_modify_ldt:
6061 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6062 break;
6063 #if !defined(TARGET_X86_64)
6064 case TARGET_NR_vm86old:
6065 goto unimplemented;
6066 case TARGET_NR_vm86:
6067 ret = do_vm86(cpu_env, arg1, arg2);
6068 break;
6069 #endif
6070 #endif
6071 case TARGET_NR_adjtimex:
6072 goto unimplemented;
6073 #ifdef TARGET_NR_create_module
6074 case TARGET_NR_create_module:
6075 #endif
6076 case TARGET_NR_init_module:
6077 case TARGET_NR_delete_module:
6078 #ifdef TARGET_NR_get_kernel_syms
6079 case TARGET_NR_get_kernel_syms:
6080 #endif
6081 goto unimplemented;
6082 case TARGET_NR_quotactl:
6083 goto unimplemented;
6084 case TARGET_NR_getpgid:
6085 ret = get_errno(getpgid(arg1));
6086 break;
6087 case TARGET_NR_fchdir:
6088 ret = get_errno(fchdir(arg1));
6089 break;
6090 #ifdef TARGET_NR_bdflush /* not on x86_64 */
6091 case TARGET_NR_bdflush:
6092 goto unimplemented;
6093 #endif
6094 #ifdef TARGET_NR_sysfs
6095 case TARGET_NR_sysfs:
6096 goto unimplemented;
6097 #endif
6098 case TARGET_NR_personality:
6099 ret = get_errno(personality(arg1));
6100 break;
6101 #ifdef TARGET_NR_afs_syscall
6102 case TARGET_NR_afs_syscall:
6103 goto unimplemented;
6104 #endif
6105 #ifdef TARGET_NR__llseek /* Not on alpha */
6106 case TARGET_NR__llseek:
6107 {
6108 #if !defined(__NR_llseek)
6109 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
6110 if (put_user_s64(ret, arg4))
6111 goto efault;
6112 #else
6113 int64_t res;
6114 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
6115 if (put_user_s64(res, arg4))
6116 goto efault;
6117 #endif
6118 }
6119 break;
6120 #endif
6121 case TARGET_NR_getdents:
6122 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
6123 {
6124 struct target_dirent *target_dirp;
6125 struct linux_dirent *dirp;
6126 abi_long count = arg3;
6127
6128 dirp = malloc(count);
6129 if (!dirp) {
6130 ret = -TARGET_ENOMEM;
6131 goto fail;
6132 }
6133
6134 ret = get_errno(sys_getdents(arg1, dirp, count));
6135 if (!is_error(ret)) {
6136 struct linux_dirent *de;
6137 struct target_dirent *tde;
6138 int len = ret;
6139 int reclen, treclen;
6140 int count1, tnamelen;
6141
6142 count1 = 0;
6143 de = dirp;
6144 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6145 goto efault;
6146 tde = target_dirp;
6147 while (len > 0) {
6148 reclen = de->d_reclen;
6149 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
6150 tde->d_reclen = tswap16(treclen);
6151 tde->d_ino = tswapl(de->d_ino);
6152 tde->d_off = tswapl(de->d_off);
6153 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
6154 if (tnamelen > 256)
6155 tnamelen = 256;
6156 /* XXX: may not be correct */
6157 pstrcpy(tde->d_name, tnamelen, de->d_name);
6158 de = (struct linux_dirent *)((char *)de + reclen);
6159 len -= reclen;
6160 tde = (struct target_dirent *)((char *)tde + treclen);
6161 count1 += treclen;
6162 }
6163 ret = count1;
6164 unlock_user(target_dirp, arg2, ret);
6165 }
6166 free(dirp);
6167 }
6168 #else
6169 {
6170 struct linux_dirent *dirp;
6171 abi_long count = arg3;
6172
6173 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6174 goto efault;
6175 ret = get_errno(sys_getdents(arg1, dirp, count));
6176 if (!is_error(ret)) {
6177 struct linux_dirent *de;
6178 int len = ret;
6179 int reclen;
6180 de = dirp;
6181 while (len > 0) {
6182 reclen = de->d_reclen;
6183 if (reclen > len)
6184 break;
6185 de->d_reclen = tswap16(reclen);
6186 tswapls(&de->d_ino);
6187 tswapls(&de->d_off);
6188 de = (struct linux_dirent *)((char *)de + reclen);
6189 len -= reclen;
6190 }
6191 }
6192 unlock_user(dirp, arg2, ret);
6193 }
6194 #endif
6195 break;
6196 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
6197 case TARGET_NR_getdents64:
6198 {
6199 struct linux_dirent64 *dirp;
6200 abi_long count = arg3;
6201 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6202 goto efault;
6203 ret = get_errno(sys_getdents64(arg1, dirp, count));
6204 if (!is_error(ret)) {
6205 struct linux_dirent64 *de;
6206 int len = ret;
6207 int reclen;
6208 de = dirp;
6209 while (len > 0) {
6210 reclen = de->d_reclen;
6211 if (reclen > len)
6212 break;
6213 de->d_reclen = tswap16(reclen);
6214 tswap64s((uint64_t *)&de->d_ino);
6215 tswap64s((uint64_t *)&de->d_off);
6216 de = (struct linux_dirent64 *)((char *)de + reclen);
6217 len -= reclen;
6218 }
6219 }
6220 unlock_user(dirp, arg2, ret);
6221 }
6222 break;
6223 #endif /* TARGET_NR_getdents64 */
6224 #ifdef TARGET_NR__newselect
6225 case TARGET_NR__newselect:
6226 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6227 break;
6228 #endif
6229 #ifdef TARGET_NR_poll
6230 case TARGET_NR_poll:
6231 {
6232 struct target_pollfd *target_pfd;
6233 unsigned int nfds = arg2;
6234 int timeout = arg3;
6235 struct pollfd *pfd;
6236 unsigned int i;
6237
6238 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
6239 if (!target_pfd)
6240 goto efault;
6241 pfd = alloca(sizeof(struct pollfd) * nfds);
6242 for(i = 0; i < nfds; i++) {
6243 pfd[i].fd = tswap32(target_pfd[i].fd);
6244 pfd[i].events = tswap16(target_pfd[i].events);
6245 }
6246 ret = get_errno(poll(pfd, nfds, timeout));
6247 if (!is_error(ret)) {
6248 for(i = 0; i < nfds; i++) {
6249 target_pfd[i].revents = tswap16(pfd[i].revents);
6250 }
6251 ret += nfds * (sizeof(struct target_pollfd)
6252 - sizeof(struct pollfd));
6253 }
6254 unlock_user(target_pfd, arg1, ret);
6255 }
6256 break;
6257 #endif
6258 case TARGET_NR_flock:
6259 /* NOTE: the flock constant seems to be the same for every
6260 Linux platform */
6261 ret = get_errno(flock(arg1, arg2));
6262 break;
6263 case TARGET_NR_readv:
6264 {
6265 int count = arg3;
6266 struct iovec *vec;
6267
6268 vec = alloca(count * sizeof(struct iovec));
6269 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
6270 goto efault;
6271 ret = get_errno(readv(arg1, vec, count));
6272 unlock_iovec(vec, arg2, count, 1);
6273 }
6274 break;
6275 case TARGET_NR_writev:
6276 {
6277 int count = arg3;
6278 struct iovec *vec;
6279
6280 vec = alloca(count * sizeof(struct iovec));
6281 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6282 goto efault;
6283 ret = get_errno(writev(arg1, vec, count));
6284 unlock_iovec(vec, arg2, count, 0);
6285 }
6286 break;
6287 case TARGET_NR_getsid:
6288 ret = get_errno(getsid(arg1));
6289 break;
6290 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
6291 case TARGET_NR_fdatasync:
6292 ret = get_errno(fdatasync(arg1));
6293 break;
6294 #endif
6295 case TARGET_NR__sysctl:
6296 /* We don't implement this, but ENOTDIR is always a safe
6297 return value. */
6298 ret = -TARGET_ENOTDIR;
6299 break;
6300 case TARGET_NR_sched_setparam:
6301 {
6302 struct sched_param *target_schp;
6303 struct sched_param schp;
6304
6305 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
6306 goto efault;
6307 schp.sched_priority = tswap32(target_schp->sched_priority);
6308 unlock_user_struct(target_schp, arg2, 0);
6309 ret = get_errno(sched_setparam(arg1, &schp));
6310 }
6311 break;
6312 case TARGET_NR_sched_getparam:
6313 {
6314 struct sched_param *target_schp;
6315 struct sched_param schp;
6316 ret = get_errno(sched_getparam(arg1, &schp));
6317 if (!is_error(ret)) {
6318 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
6319 goto efault;
6320 target_schp->sched_priority = tswap32(schp.sched_priority);
6321 unlock_user_struct(target_schp, arg2, 1);
6322 }
6323 }
6324 break;
6325 case TARGET_NR_sched_setscheduler:
6326 {
6327 struct sched_param *target_schp;
6328 struct sched_param schp;
6329 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6330 goto efault;
6331 schp.sched_priority = tswap32(target_schp->sched_priority);
6332 unlock_user_struct(target_schp, arg3, 0);
6333 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6334 }
6335 break;
6336 case TARGET_NR_sched_getscheduler:
6337 ret = get_errno(sched_getscheduler(arg1));
6338 break;
6339 case TARGET_NR_sched_yield:
6340 ret = get_errno(sched_yield());
6341 break;
6342 case TARGET_NR_sched_get_priority_max:
6343 ret = get_errno(sched_get_priority_max(arg1));
6344 break;
6345 case TARGET_NR_sched_get_priority_min:
6346 ret = get_errno(sched_get_priority_min(arg1));
6347 break;
6348 case TARGET_NR_sched_rr_get_interval:
6349 {
6350 struct timespec ts;
6351 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6352 if (!is_error(ret)) {
6353 host_to_target_timespec(arg2, &ts);
6354 }
6355 }
6356 break;
6357 case TARGET_NR_nanosleep:
6358 {
6359 struct timespec req, rem;
6360 target_to_host_timespec(&req, arg1);
6361 ret = get_errno(nanosleep(&req, &rem));
6362 if (is_error(ret) && arg2) {
6363 host_to_target_timespec(arg2, &rem);
6364 }
6365 }
6366 break;
6367 #ifdef TARGET_NR_query_module
6368 case TARGET_NR_query_module:
6369 goto unimplemented;
6370 #endif
6371 #ifdef TARGET_NR_nfsservctl
6372 case TARGET_NR_nfsservctl:
6373 goto unimplemented;
6374 #endif
6375 case TARGET_NR_prctl:
6376 switch (arg1)
6377 {
6378 case PR_GET_PDEATHSIG:
6379 {
6380 int deathsig;
6381 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6382 if (!is_error(ret) && arg2
6383 && put_user_ual(deathsig, arg2))
6384 goto efault;
6385 }
6386 break;
6387 default:
6388 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6389 break;
6390 }
6391 break;
6392 #ifdef TARGET_NR_arch_prctl
6393 case TARGET_NR_arch_prctl:
6394 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6395 ret = do_arch_prctl(cpu_env, arg1, arg2);
6396 break;
6397 #else
6398 goto unimplemented;
6399 #endif
6400 #endif
6401 #ifdef TARGET_NR_pread
6402 case TARGET_NR_pread:
6403 #ifdef TARGET_ARM
6404 if (((CPUARMState *)cpu_env)->eabi)
6405 arg4 = arg5;
6406 #endif
6407 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6408 goto efault;
6409 ret = get_errno(pread(arg1, p, arg3, arg4));
6410 unlock_user(p, arg2, ret);
6411 break;
6412 case TARGET_NR_pwrite:
6413 #ifdef TARGET_ARM
6414 if (((CPUARMState *)cpu_env)->eabi)
6415 arg4 = arg5;
6416 #endif
6417 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6418 goto efault;
6419 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6420 unlock_user(p, arg2, 0);
6421 break;
6422 #endif
6423 #ifdef TARGET_NR_pread64
6424 case TARGET_NR_pread64:
6425 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6426 goto efault;
6427 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6428 unlock_user(p, arg2, ret);
6429 break;
6430 case TARGET_NR_pwrite64:
6431 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6432 goto efault;
6433 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6434 unlock_user(p, arg2, 0);
6435 break;
6436 #endif
6437 case TARGET_NR_getcwd:
6438 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6439 goto efault;
6440 ret = get_errno(sys_getcwd1(p, arg2));
6441 unlock_user(p, arg1, ret);
6442 break;
6443 case TARGET_NR_capget:
6444 goto unimplemented;
6445 case TARGET_NR_capset:
6446 goto unimplemented;
6447 case TARGET_NR_sigaltstack:
6448 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6449 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6450 defined(TARGET_M68K)
6451 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6452 break;
6453 #else
6454 goto unimplemented;
6455 #endif
6456 case TARGET_NR_sendfile:
6457 goto unimplemented;
6458 #ifdef TARGET_NR_getpmsg
6459 case TARGET_NR_getpmsg:
6460 goto unimplemented;
6461 #endif
6462 #ifdef TARGET_NR_putpmsg
6463 case TARGET_NR_putpmsg:
6464 goto unimplemented;
6465 #endif
6466 #ifdef TARGET_NR_vfork
6467 case TARGET_NR_vfork:
6468 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6469 0, 0, 0, 0));
6470 break;
6471 #endif
6472 #ifdef TARGET_NR_ugetrlimit
6473 case TARGET_NR_ugetrlimit:
6474 {
6475 struct rlimit rlim;
6476 ret = get_errno(getrlimit(arg1, &rlim));
6477 if (!is_error(ret)) {
6478 struct target_rlimit *target_rlim;
6479 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6480 goto efault;
6481 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6482 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6483 unlock_user_struct(target_rlim, arg2, 1);
6484 }
6485 break;
6486 }
6487 #endif
6488 #ifdef TARGET_NR_truncate64
6489 case TARGET_NR_truncate64:
6490 if (!(p = lock_user_string(arg1)))
6491 goto efault;
6492 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6493 unlock_user(p, arg1, 0);
6494 break;
6495 #endif
6496 #ifdef TARGET_NR_ftruncate64
6497 case TARGET_NR_ftruncate64:
6498 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6499 break;
6500 #endif
6501 #ifdef TARGET_NR_stat64
6502 case TARGET_NR_stat64:
6503 if (!(p = lock_user_string(arg1)))
6504 goto efault;
6505 ret = get_errno(stat(path(p), &st));
6506 unlock_user(p, arg1, 0);
6507 if (!is_error(ret))
6508 ret = host_to_target_stat64(cpu_env, arg2, &st);
6509 break;
6510 #endif
6511 #ifdef TARGET_NR_lstat64
6512 case TARGET_NR_lstat64:
6513 if (!(p = lock_user_string(arg1)))
6514 goto efault;
6515 ret = get_errno(lstat(path(p), &st));
6516 unlock_user(p, arg1, 0);
6517 if (!is_error(ret))
6518 ret = host_to_target_stat64(cpu_env, arg2, &st);
6519 break;
6520 #endif
6521 #ifdef TARGET_NR_fstat64
6522 case TARGET_NR_fstat64:
6523 ret = get_errno(fstat(arg1, &st));
6524 if (!is_error(ret))
6525 ret = host_to_target_stat64(cpu_env, arg2, &st);
6526 break;
6527 #endif
6528 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6529 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6530 #ifdef TARGET_NR_fstatat64
6531 case TARGET_NR_fstatat64:
6532 #endif
6533 #ifdef TARGET_NR_newfstatat
6534 case TARGET_NR_newfstatat:
6535 #endif
6536 if (!(p = lock_user_string(arg2)))
6537 goto efault;
6538 #ifdef __NR_fstatat64
6539 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6540 #else
6541 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6542 #endif
6543 if (!is_error(ret))
6544 ret = host_to_target_stat64(cpu_env, arg3, &st);
6545 break;
6546 #endif
6547 #ifdef USE_UID16
6548 case TARGET_NR_lchown:
6549 if (!(p = lock_user_string(arg1)))
6550 goto efault;
6551 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6552 unlock_user(p, arg1, 0);
6553 break;
6554 case TARGET_NR_getuid:
6555 ret = get_errno(high2lowuid(getuid()));
6556 break;
6557 case TARGET_NR_getgid:
6558 ret = get_errno(high2lowgid(getgid()));
6559 break;
6560 case TARGET_NR_geteuid:
6561 ret = get_errno(high2lowuid(geteuid()));
6562 break;
6563 case TARGET_NR_getegid:
6564 ret = get_errno(high2lowgid(getegid()));
6565 break;
6566 case TARGET_NR_setreuid:
6567 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6568 break;
6569 case TARGET_NR_setregid:
6570 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6571 break;
6572 case TARGET_NR_getgroups:
6573 {
6574 int gidsetsize = arg1;
6575 uint16_t *target_grouplist;
6576 gid_t *grouplist;
6577 int i;
6578
6579 grouplist = alloca(gidsetsize * sizeof(gid_t));
6580 ret = get_errno(getgroups(gidsetsize, grouplist));
6581 if (gidsetsize == 0)
6582 break;
6583 if (!is_error(ret)) {
6584 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6585 if (!target_grouplist)
6586 goto efault;
6587 for(i = 0;i < ret; i++)
6588 target_grouplist[i] = tswap16(grouplist[i]);
6589 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6590 }
6591 }
6592 break;
6593 case TARGET_NR_setgroups:
6594 {
6595 int gidsetsize = arg1;
6596 uint16_t *target_grouplist;
6597 gid_t *grouplist;
6598 int i;
6599
6600 grouplist = alloca(gidsetsize * sizeof(gid_t));
6601 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6602 if (!target_grouplist) {
6603 ret = -TARGET_EFAULT;
6604 goto fail;
6605 }
6606 for(i = 0;i < gidsetsize; i++)
6607 grouplist[i] = tswap16(target_grouplist[i]);
6608 unlock_user(target_grouplist, arg2, 0);
6609 ret = get_errno(setgroups(gidsetsize, grouplist));
6610 }
6611 break;
6612 case TARGET_NR_fchown:
6613 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6614 break;
6615 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6616 case TARGET_NR_fchownat:
6617 if (!(p = lock_user_string(arg2)))
6618 goto efault;
6619 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6620 unlock_user(p, arg2, 0);
6621 break;
6622 #endif
6623 #ifdef TARGET_NR_setresuid
6624 case TARGET_NR_setresuid:
6625 ret = get_errno(setresuid(low2highuid(arg1),
6626 low2highuid(arg2),
6627 low2highuid(arg3)));
6628 break;
6629 #endif
6630 #ifdef TARGET_NR_getresuid
6631 case TARGET_NR_getresuid:
6632 {
6633 uid_t ruid, euid, suid;
6634 ret = get_errno(getresuid(&ruid, &euid, &suid));
6635 if (!is_error(ret)) {
6636 if (put_user_u16(high2lowuid(ruid), arg1)
6637 || put_user_u16(high2lowuid(euid), arg2)
6638 || put_user_u16(high2lowuid(suid), arg3))
6639 goto efault;
6640 }
6641 }
6642 break;
6643 #endif
6644 #ifdef TARGET_NR_getresgid
6645 case TARGET_NR_setresgid:
6646 ret = get_errno(setresgid(low2highgid(arg1),
6647 low2highgid(arg2),
6648 low2highgid(arg3)));
6649 break;
6650 #endif
6651 #ifdef TARGET_NR_getresgid
6652 case TARGET_NR_getresgid:
6653 {
6654 gid_t rgid, egid, sgid;
6655 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6656 if (!is_error(ret)) {
6657 if (put_user_u16(high2lowgid(rgid), arg1)
6658 || put_user_u16(high2lowgid(egid), arg2)
6659 || put_user_u16(high2lowgid(sgid), arg3))
6660 goto efault;
6661 }
6662 }
6663 break;
6664 #endif
6665 case TARGET_NR_chown:
6666 if (!(p = lock_user_string(arg1)))
6667 goto efault;
6668 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6669 unlock_user(p, arg1, 0);
6670 break;
6671 case TARGET_NR_setuid:
6672 ret = get_errno(setuid(low2highuid(arg1)));
6673 break;
6674 case TARGET_NR_setgid:
6675 ret = get_errno(setgid(low2highgid(arg1)));
6676 break;
6677 case TARGET_NR_setfsuid:
6678 ret = get_errno(setfsuid(arg1));
6679 break;
6680 case TARGET_NR_setfsgid:
6681 ret = get_errno(setfsgid(arg1));
6682 break;
6683 #endif /* USE_UID16 */
6684
6685 #ifdef TARGET_NR_lchown32
6686 case TARGET_NR_lchown32:
6687 if (!(p = lock_user_string(arg1)))
6688 goto efault;
6689 ret = get_errno(lchown(p, arg2, arg3));
6690 unlock_user(p, arg1, 0);
6691 break;
6692 #endif
6693 #ifdef TARGET_NR_getuid32
6694 case TARGET_NR_getuid32:
6695 ret = get_errno(getuid());
6696 break;
6697 #endif
6698
6699 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6700 /* Alpha specific */
6701 case TARGET_NR_getxuid:
6702 {
6703 uid_t euid;
6704 euid=geteuid();
6705 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6706 }
6707 ret = get_errno(getuid());
6708 break;
6709 #endif
6710 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6711 /* Alpha specific */
6712 case TARGET_NR_getxgid:
6713 {
6714 uid_t egid;
6715 egid=getegid();
6716 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6717 }
6718 ret = get_errno(getgid());
6719 break;
6720 #endif
6721 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
6722 /* Alpha specific */
6723 case TARGET_NR_osf_getsysinfo:
6724 ret = -TARGET_EOPNOTSUPP;
6725 switch (arg1) {
6726 case TARGET_GSI_IEEE_FP_CONTROL:
6727 {
6728 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
6729
6730 /* Copied from linux ieee_fpcr_to_swcr. */
6731 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
6732 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
6733 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
6734 | SWCR_TRAP_ENABLE_DZE
6735 | SWCR_TRAP_ENABLE_OVF);
6736 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
6737 | SWCR_TRAP_ENABLE_INE);
6738 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
6739 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
6740
6741 if (put_user_u64 (swcr, arg2))
6742 goto efault;
6743 ret = 0;
6744 }
6745 break;
6746
6747 /* case GSI_IEEE_STATE_AT_SIGNAL:
6748 -- Not implemented in linux kernel.
6749 case GSI_UACPROC:
6750 -- Retrieves current unaligned access state; not much used.
6751 case GSI_PROC_TYPE:
6752 -- Retrieves implver information; surely not used.
6753 case GSI_GET_HWRPB:
6754 -- Grabs a copy of the HWRPB; surely not used.
6755 */
6756 }
6757 break;
6758 #endif
6759 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
6760 /* Alpha specific */
6761 case TARGET_NR_osf_setsysinfo:
6762 ret = -TARGET_EOPNOTSUPP;
6763 switch (arg1) {
6764 case TARGET_SSI_IEEE_FP_CONTROL:
6765 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
6766 {
6767 uint64_t swcr, fpcr, orig_fpcr;
6768
6769 if (get_user_u64 (swcr, arg2))
6770 goto efault;
6771 orig_fpcr = cpu_alpha_load_fpcr (cpu_env);
6772 fpcr = orig_fpcr & FPCR_DYN_MASK;
6773
6774 /* Copied from linux ieee_swcr_to_fpcr. */
6775 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
6776 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
6777 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
6778 | SWCR_TRAP_ENABLE_DZE
6779 | SWCR_TRAP_ENABLE_OVF)) << 48;
6780 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
6781 | SWCR_TRAP_ENABLE_INE)) << 57;
6782 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
6783 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
6784
6785 cpu_alpha_store_fpcr (cpu_env, fpcr);
6786 ret = 0;
6787
6788 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) {
6789 /* Old exceptions are not signaled. */
6790 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
6791
6792 /* If any exceptions set by this call, and are unmasked,
6793 send a signal. */
6794 /* ??? FIXME */
6795 }
6796 }
6797 break;
6798
6799 /* case SSI_NVPAIRS:
6800 -- Used with SSIN_UACPROC to enable unaligned accesses.
6801 case SSI_IEEE_STATE_AT_SIGNAL:
6802 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
6803 -- Not implemented in linux kernel
6804 */
6805 }
6806 break;
6807 #endif
6808 #ifdef TARGET_NR_osf_sigprocmask
6809 /* Alpha specific. */
6810 case TARGET_NR_osf_sigprocmask:
6811 {
6812 abi_ulong mask;
6813 int how = arg1;
6814 sigset_t set, oldset;
6815
6816 switch(arg1) {
6817 case TARGET_SIG_BLOCK:
6818 how = SIG_BLOCK;
6819 break;
6820 case TARGET_SIG_UNBLOCK:
6821 how = SIG_UNBLOCK;
6822 break;
6823 case TARGET_SIG_SETMASK:
6824 how = SIG_SETMASK;
6825 break;
6826 default:
6827 ret = -TARGET_EINVAL;
6828 goto fail;
6829 }
6830 mask = arg2;
6831 target_to_host_old_sigset(&set, &mask);
6832 sigprocmask(arg1, &set, &oldset);
6833 host_to_target_old_sigset(&mask, &oldset);
6834 ret = mask;
6835 }
6836 break;
6837 #endif
6838
6839 #ifdef TARGET_NR_getgid32
6840 case TARGET_NR_getgid32:
6841 ret = get_errno(getgid());
6842 break;
6843 #endif
6844 #ifdef TARGET_NR_geteuid32
6845 case TARGET_NR_geteuid32:
6846 ret = get_errno(geteuid());
6847 break;
6848 #endif
6849 #ifdef TARGET_NR_getegid32
6850 case TARGET_NR_getegid32:
6851 ret = get_errno(getegid());
6852 break;
6853 #endif
6854 #ifdef TARGET_NR_setreuid32
6855 case TARGET_NR_setreuid32:
6856 ret = get_errno(setreuid(arg1, arg2));
6857 break;
6858 #endif
6859 #ifdef TARGET_NR_setregid32
6860 case TARGET_NR_setregid32:
6861 ret = get_errno(setregid(arg1, arg2));
6862 break;
6863 #endif
6864 #ifdef TARGET_NR_getgroups32
6865 case TARGET_NR_getgroups32:
6866 {
6867 int gidsetsize = arg1;
6868 uint32_t *target_grouplist;
6869 gid_t *grouplist;
6870 int i;
6871
6872 grouplist = alloca(gidsetsize * sizeof(gid_t));
6873 ret = get_errno(getgroups(gidsetsize, grouplist));
6874 if (gidsetsize == 0)
6875 break;
6876 if (!is_error(ret)) {
6877 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
6878 if (!target_grouplist) {
6879 ret = -TARGET_EFAULT;
6880 goto fail;
6881 }
6882 for(i = 0;i < ret; i++)
6883 target_grouplist[i] = tswap32(grouplist[i]);
6884 unlock_user(target_grouplist, arg2, gidsetsize * 4);
6885 }
6886 }
6887 break;
6888 #endif
6889 #ifdef TARGET_NR_setgroups32
6890 case TARGET_NR_setgroups32:
6891 {
6892 int gidsetsize = arg1;
6893 uint32_t *target_grouplist;
6894 gid_t *grouplist;
6895 int i;
6896
6897 grouplist = alloca(gidsetsize * sizeof(gid_t));
6898 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
6899 if (!target_grouplist) {
6900 ret = -TARGET_EFAULT;
6901 goto fail;
6902 }
6903 for(i = 0;i < gidsetsize; i++)
6904 grouplist[i] = tswap32(target_grouplist[i]);
6905 unlock_user(target_grouplist, arg2, 0);
6906 ret = get_errno(setgroups(gidsetsize, grouplist));
6907 }
6908 break;
6909 #endif
6910 #ifdef TARGET_NR_fchown32
6911 case TARGET_NR_fchown32:
6912 ret = get_errno(fchown(arg1, arg2, arg3));
6913 break;
6914 #endif
6915 #ifdef TARGET_NR_setresuid32
6916 case TARGET_NR_setresuid32:
6917 ret = get_errno(setresuid(arg1, arg2, arg3));
6918 break;
6919 #endif
6920 #ifdef TARGET_NR_getresuid32
6921 case TARGET_NR_getresuid32:
6922 {
6923 uid_t ruid, euid, suid;
6924 ret = get_errno(getresuid(&ruid, &euid, &suid));
6925 if (!is_error(ret)) {
6926 if (put_user_u32(ruid, arg1)
6927 || put_user_u32(euid, arg2)
6928 || put_user_u32(suid, arg3))
6929 goto efault;
6930 }
6931 }
6932 break;
6933 #endif
6934 #ifdef TARGET_NR_setresgid32
6935 case TARGET_NR_setresgid32:
6936 ret = get_errno(setresgid(arg1, arg2, arg3));
6937 break;
6938 #endif
6939 #ifdef TARGET_NR_getresgid32
6940 case TARGET_NR_getresgid32:
6941 {
6942 gid_t rgid, egid, sgid;
6943 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6944 if (!is_error(ret)) {
6945 if (put_user_u32(rgid, arg1)
6946 || put_user_u32(egid, arg2)
6947 || put_user_u32(sgid, arg3))
6948 goto efault;
6949 }
6950 }
6951 break;
6952 #endif
6953 #ifdef TARGET_NR_chown32
6954 case TARGET_NR_chown32:
6955 if (!(p = lock_user_string(arg1)))
6956 goto efault;
6957 ret = get_errno(chown(p, arg2, arg3));
6958 unlock_user(p, arg1, 0);
6959 break;
6960 #endif
6961 #ifdef TARGET_NR_setuid32
6962 case TARGET_NR_setuid32:
6963 ret = get_errno(setuid(arg1));
6964 break;
6965 #endif
6966 #ifdef TARGET_NR_setgid32
6967 case TARGET_NR_setgid32:
6968 ret = get_errno(setgid(arg1));
6969 break;
6970 #endif
6971 #ifdef TARGET_NR_setfsuid32
6972 case TARGET_NR_setfsuid32:
6973 ret = get_errno(setfsuid(arg1));
6974 break;
6975 #endif
6976 #ifdef TARGET_NR_setfsgid32
6977 case TARGET_NR_setfsgid32:
6978 ret = get_errno(setfsgid(arg1));
6979 break;
6980 #endif
6981
6982 case TARGET_NR_pivot_root:
6983 goto unimplemented;
6984 #ifdef TARGET_NR_mincore
6985 case TARGET_NR_mincore:
6986 {
6987 void *a;
6988 ret = -TARGET_EFAULT;
6989 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
6990 goto efault;
6991 if (!(p = lock_user_string(arg3)))
6992 goto mincore_fail;
6993 ret = get_errno(mincore(a, arg2, p));
6994 unlock_user(p, arg3, ret);
6995 mincore_fail:
6996 unlock_user(a, arg1, 0);
6997 }
6998 break;
6999 #endif
7000 #ifdef TARGET_NR_arm_fadvise64_64
7001 case TARGET_NR_arm_fadvise64_64:
7002 {
7003 /*
7004 * arm_fadvise64_64 looks like fadvise64_64 but
7005 * with different argument order
7006 */
7007 abi_long temp;
7008 temp = arg3;
7009 arg3 = arg4;
7010 arg4 = temp;
7011 }
7012 #endif
7013 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
7014 #ifdef TARGET_NR_fadvise64_64
7015 case TARGET_NR_fadvise64_64:
7016 #endif
7017 #ifdef TARGET_NR_fadvise64
7018 case TARGET_NR_fadvise64:
7019 #endif
7020 #ifdef TARGET_S390X
7021 switch (arg4) {
7022 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
7023 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
7024 case 6: arg4 = POSIX_FADV_DONTNEED; break;
7025 case 7: arg4 = POSIX_FADV_NOREUSE; break;
7026 default: break;
7027 }
7028 #endif
7029 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
7030 break;
7031 #endif
7032 #ifdef TARGET_NR_madvise
7033 case TARGET_NR_madvise:
7034 /* A straight passthrough may not be safe because qemu sometimes
7035 turns private flie-backed mappings into anonymous mappings.
7036 This will break MADV_DONTNEED.
7037 This is a hint, so ignoring and returning success is ok. */
7038 ret = get_errno(0);
7039 break;
7040 #endif
7041 #if TARGET_ABI_BITS == 32
7042 case TARGET_NR_fcntl64:
7043 {
7044 int cmd;
7045 struct flock64 fl;
7046 struct target_flock64 *target_fl;
7047 #ifdef TARGET_ARM
7048 struct target_eabi_flock64 *target_efl;
7049 #endif
7050
7051 cmd = target_to_host_fcntl_cmd(arg2);
7052 if (cmd == -TARGET_EINVAL)
7053 return cmd;
7054
7055 switch(arg2) {
7056 case TARGET_F_GETLK64:
7057 #ifdef TARGET_ARM
7058 if (((CPUARMState *)cpu_env)->eabi) {
7059 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7060 goto efault;
7061 fl.l_type = tswap16(target_efl->l_type);
7062 fl.l_whence = tswap16(target_efl->l_whence);
7063 fl.l_start = tswap64(target_efl->l_start);
7064 fl.l_len = tswap64(target_efl->l_len);
7065 fl.l_pid = tswap32(target_efl->l_pid);
7066 unlock_user_struct(target_efl, arg3, 0);
7067 } else
7068 #endif
7069 {
7070 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7071 goto efault;
7072 fl.l_type = tswap16(target_fl->l_type);
7073 fl.l_whence = tswap16(target_fl->l_whence);
7074 fl.l_start = tswap64(target_fl->l_start);
7075 fl.l_len = tswap64(target_fl->l_len);
7076 fl.l_pid = tswap32(target_fl->l_pid);
7077 unlock_user_struct(target_fl, arg3, 0);
7078 }
7079 ret = get_errno(fcntl(arg1, cmd, &fl));
7080 if (ret == 0) {
7081 #ifdef TARGET_ARM
7082 if (((CPUARMState *)cpu_env)->eabi) {
7083 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
7084 goto efault;
7085 target_efl->l_type = tswap16(fl.l_type);
7086 target_efl->l_whence = tswap16(fl.l_whence);
7087 target_efl->l_start = tswap64(fl.l_start);
7088 target_efl->l_len = tswap64(fl.l_len);
7089 target_efl->l_pid = tswap32(fl.l_pid);
7090 unlock_user_struct(target_efl, arg3, 1);
7091 } else
7092 #endif
7093 {
7094 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
7095 goto efault;
7096 target_fl->l_type = tswap16(fl.l_type);
7097 target_fl->l_whence = tswap16(fl.l_whence);
7098 target_fl->l_start = tswap64(fl.l_start);
7099 target_fl->l_len = tswap64(fl.l_len);
7100 target_fl->l_pid = tswap32(fl.l_pid);
7101 unlock_user_struct(target_fl, arg3, 1);
7102 }
7103 }
7104 break;
7105
7106 case TARGET_F_SETLK64:
7107 case TARGET_F_SETLKW64:
7108 #ifdef TARGET_ARM
7109 if (((CPUARMState *)cpu_env)->eabi) {
7110 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7111 goto efault;
7112 fl.l_type = tswap16(target_efl->l_type);
7113 fl.l_whence = tswap16(target_efl->l_whence);
7114 fl.l_start = tswap64(target_efl->l_start);
7115 fl.l_len = tswap64(target_efl->l_len);
7116 fl.l_pid = tswap32(target_efl->l_pid);
7117 unlock_user_struct(target_efl, arg3, 0);
7118 } else
7119 #endif
7120 {
7121 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7122 goto efault;
7123 fl.l_type = tswap16(target_fl->l_type);
7124 fl.l_whence = tswap16(target_fl->l_whence);
7125 fl.l_start = tswap64(target_fl->l_start);
7126 fl.l_len = tswap64(target_fl->l_len);
7127 fl.l_pid = tswap32(target_fl->l_pid);
7128 unlock_user_struct(target_fl, arg3, 0);
7129 }
7130 ret = get_errno(fcntl(arg1, cmd, &fl));
7131 break;
7132 default:
7133 ret = do_fcntl(arg1, arg2, arg3);
7134 break;
7135 }
7136 break;
7137 }
7138 #endif
7139 #ifdef TARGET_NR_cacheflush
7140 case TARGET_NR_cacheflush:
7141 /* self-modifying code is handled automatically, so nothing needed */
7142 ret = 0;
7143 break;
7144 #endif
7145 #ifdef TARGET_NR_security
7146 case TARGET_NR_security:
7147 goto unimplemented;
7148 #endif
7149 #ifdef TARGET_NR_getpagesize
7150 case TARGET_NR_getpagesize:
7151 ret = TARGET_PAGE_SIZE;
7152 break;
7153 #endif
7154 case TARGET_NR_gettid:
7155 ret = get_errno(gettid());
7156 break;
7157 #ifdef TARGET_NR_readahead
7158 case TARGET_NR_readahead:
7159 #if TARGET_ABI_BITS == 32
7160 #ifdef TARGET_ARM
7161 if (((CPUARMState *)cpu_env)->eabi)
7162 {
7163 arg2 = arg3;
7164 arg3 = arg4;
7165 arg4 = arg5;
7166 }
7167 #endif
7168 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
7169 #else
7170 ret = get_errno(readahead(arg1, arg2, arg3));
7171 #endif
7172 break;
7173 #endif
7174 #ifdef TARGET_NR_setxattr
7175 case TARGET_NR_setxattr:
7176 case TARGET_NR_lsetxattr:
7177 case TARGET_NR_fsetxattr:
7178 case TARGET_NR_getxattr:
7179 case TARGET_NR_lgetxattr:
7180 case TARGET_NR_fgetxattr:
7181 case TARGET_NR_listxattr:
7182 case TARGET_NR_llistxattr:
7183 case TARGET_NR_flistxattr:
7184 case TARGET_NR_removexattr:
7185 case TARGET_NR_lremovexattr:
7186 case TARGET_NR_fremovexattr:
7187 ret = -TARGET_EOPNOTSUPP;
7188 break;
7189 #endif
7190 #ifdef TARGET_NR_set_thread_area
7191 case TARGET_NR_set_thread_area:
7192 #if defined(TARGET_MIPS)
7193 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
7194 ret = 0;
7195 break;
7196 #elif defined(TARGET_CRIS)
7197 if (arg1 & 0xff)
7198 ret = -TARGET_EINVAL;
7199 else {
7200 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
7201 ret = 0;
7202 }
7203 break;
7204 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
7205 ret = do_set_thread_area(cpu_env, arg1);
7206 break;
7207 #else
7208 goto unimplemented_nowarn;
7209 #endif
7210 #endif
7211 #ifdef TARGET_NR_get_thread_area
7212 case TARGET_NR_get_thread_area:
7213 #if defined(TARGET_I386) && defined(TARGET_ABI32)
7214 ret = do_get_thread_area(cpu_env, arg1);
7215 #else
7216 goto unimplemented_nowarn;
7217 #endif
7218 #endif
7219 #ifdef TARGET_NR_getdomainname
7220 case TARGET_NR_getdomainname:
7221 goto unimplemented_nowarn;
7222 #endif
7223
7224 #ifdef TARGET_NR_clock_gettime
7225 case TARGET_NR_clock_gettime:
7226 {
7227 struct timespec ts;
7228 ret = get_errno(clock_gettime(arg1, &ts));
7229 if (!is_error(ret)) {
7230 host_to_target_timespec(arg2, &ts);
7231 }
7232 break;
7233 }
7234 #endif
7235 #ifdef TARGET_NR_clock_getres
7236 case TARGET_NR_clock_getres:
7237 {
7238 struct timespec ts;
7239 ret = get_errno(clock_getres(arg1, &ts));
7240 if (!is_error(ret)) {
7241 host_to_target_timespec(arg2, &ts);
7242 }
7243 break;
7244 }
7245 #endif
7246 #ifdef TARGET_NR_clock_nanosleep
7247 case TARGET_NR_clock_nanosleep:
7248 {
7249 struct timespec ts;
7250 target_to_host_timespec(&ts, arg3);
7251 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
7252 if (arg4)
7253 host_to_target_timespec(arg4, &ts);
7254 break;
7255 }
7256 #endif
7257
7258 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
7259 case TARGET_NR_set_tid_address:
7260 ret = get_errno(set_tid_address((int *)g2h(arg1)));
7261 break;
7262 #endif
7263
7264 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
7265 case TARGET_NR_tkill:
7266 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
7267 break;
7268 #endif
7269
7270 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
7271 case TARGET_NR_tgkill:
7272 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
7273 target_to_host_signal(arg3)));
7274 break;
7275 #endif
7276
7277 #ifdef TARGET_NR_set_robust_list
7278 case TARGET_NR_set_robust_list:
7279 goto unimplemented_nowarn;
7280 #endif
7281
7282 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
7283 case TARGET_NR_utimensat:
7284 {
7285 struct timespec *tsp, ts[2];
7286 if (!arg3) {
7287 tsp = NULL;
7288 } else {
7289 target_to_host_timespec(ts, arg3);
7290 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
7291 tsp = ts;
7292 }
7293 if (!arg2)
7294 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
7295 else {
7296 if (!(p = lock_user_string(arg2))) {
7297 ret = -TARGET_EFAULT;
7298 goto fail;
7299 }
7300 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
7301 unlock_user(p, arg2, 0);
7302 }
7303 }
7304 break;
7305 #endif
7306 #if defined(CONFIG_USE_NPTL)
7307 case TARGET_NR_futex:
7308 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
7309 break;
7310 #endif
7311 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
7312 case TARGET_NR_inotify_init:
7313 ret = get_errno(sys_inotify_init());
7314 break;
7315 #endif
7316 #ifdef CONFIG_INOTIFY1
7317 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
7318 case TARGET_NR_inotify_init1:
7319 ret = get_errno(sys_inotify_init1(arg1));
7320 break;
7321 #endif
7322 #endif
7323 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
7324 case TARGET_NR_inotify_add_watch:
7325 p = lock_user_string(arg2);
7326 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
7327 unlock_user(p, arg2, 0);
7328 break;
7329 #endif
7330 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
7331 case TARGET_NR_inotify_rm_watch:
7332 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
7333 break;
7334 #endif
7335
7336 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
7337 case TARGET_NR_mq_open:
7338 {
7339 struct mq_attr posix_mq_attr;
7340
7341 p = lock_user_string(arg1 - 1);
7342 if (arg4 != 0)
7343 copy_from_user_mq_attr (&posix_mq_attr, arg4);
7344 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
7345 unlock_user (p, arg1, 0);
7346 }
7347 break;
7348
7349 case TARGET_NR_mq_unlink:
7350 p = lock_user_string(arg1 - 1);
7351 ret = get_errno(mq_unlink(p));
7352 unlock_user (p, arg1, 0);
7353 break;
7354
7355 case TARGET_NR_mq_timedsend:
7356 {
7357 struct timespec ts;
7358
7359 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7360 if (arg5 != 0) {
7361 target_to_host_timespec(&ts, arg5);
7362 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
7363 host_to_target_timespec(arg5, &ts);
7364 }
7365 else
7366 ret = get_errno(mq_send(arg1, p, arg3, arg4));
7367 unlock_user (p, arg2, arg3);
7368 }
7369 break;
7370
7371 case TARGET_NR_mq_timedreceive:
7372 {
7373 struct timespec ts;
7374 unsigned int prio;
7375
7376 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7377 if (arg5 != 0) {
7378 target_to_host_timespec(&ts, arg5);
7379 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
7380 host_to_target_timespec(arg5, &ts);
7381 }
7382 else
7383 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
7384 unlock_user (p, arg2, arg3);
7385 if (arg4 != 0)
7386 put_user_u32(prio, arg4);
7387 }
7388 break;
7389
7390 /* Not implemented for now... */
7391 /* case TARGET_NR_mq_notify: */
7392 /* break; */
7393
7394 case TARGET_NR_mq_getsetattr:
7395 {
7396 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
7397 ret = 0;
7398 if (arg3 != 0) {
7399 ret = mq_getattr(arg1, &posix_mq_attr_out);
7400 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
7401 }
7402 if (arg2 != 0) {
7403 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
7404 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
7405 }
7406
7407 }
7408 break;
7409 #endif
7410
7411 #ifdef CONFIG_SPLICE
7412 #ifdef TARGET_NR_tee
7413 case TARGET_NR_tee:
7414 {
7415 ret = get_errno(tee(arg1,arg2,arg3,arg4));
7416 }
7417 break;
7418 #endif
7419 #ifdef TARGET_NR_splice
7420 case TARGET_NR_splice:
7421 {
7422 loff_t loff_in, loff_out;
7423 loff_t *ploff_in = NULL, *ploff_out = NULL;
7424 if(arg2) {
7425 get_user_u64(loff_in, arg2);
7426 ploff_in = &loff_in;
7427 }
7428 if(arg4) {
7429 get_user_u64(loff_out, arg2);
7430 ploff_out = &loff_out;
7431 }
7432 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
7433 }
7434 break;
7435 #endif
7436 #ifdef TARGET_NR_vmsplice
7437 case TARGET_NR_vmsplice:
7438 {
7439 int count = arg3;
7440 struct iovec *vec;
7441
7442 vec = alloca(count * sizeof(struct iovec));
7443 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
7444 goto efault;
7445 ret = get_errno(vmsplice(arg1, vec, count, arg4));
7446 unlock_iovec(vec, arg2, count, 0);
7447 }
7448 break;
7449 #endif
7450 #endif /* CONFIG_SPLICE */
7451 #ifdef CONFIG_EVENTFD
7452 #if defined(TARGET_NR_eventfd)
7453 case TARGET_NR_eventfd:
7454 ret = get_errno(eventfd(arg1, 0));
7455 break;
7456 #endif
7457 #if defined(TARGET_NR_eventfd2)
7458 case TARGET_NR_eventfd2:
7459 ret = get_errno(eventfd(arg1, arg2));
7460 break;
7461 #endif
7462 #endif /* CONFIG_EVENTFD */
7463 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
7464 case TARGET_NR_fallocate:
7465 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
7466 break;
7467 #endif
7468 #if defined(CONFIG_SYNC_FILE_RANGE)
7469 #if defined(TARGET_NR_sync_file_range)
7470 case TARGET_NR_sync_file_range:
7471 #if TARGET_ABI_BITS == 32
7472 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
7473 target_offset64(arg4, arg5), arg6));
7474 #else
7475 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
7476 #endif
7477 break;
7478 #endif
7479 #if defined(TARGET_NR_sync_file_range2)
7480 case TARGET_NR_sync_file_range2:
7481 /* This is like sync_file_range but the arguments are reordered */
7482 #if TARGET_ABI_BITS == 32
7483 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
7484 target_offset64(arg5, arg6), arg2));
7485 #else
7486 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
7487 #endif
7488 break;
7489 #endif
7490 #endif
7491 default:
7492 unimplemented:
7493 gemu_log("qemu: Unsupported syscall: %d\n", num);
7494 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
7495 unimplemented_nowarn:
7496 #endif
7497 ret = -TARGET_ENOSYS;
7498 break;
7499 }
7500 fail:
7501 #ifdef DEBUG
7502 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
7503 #endif
7504 if(do_strace)
7505 print_syscall_ret(num, ret);
7506 return ret;
7507 efault:
7508 ret = -TARGET_EFAULT;
7509 goto fail;
7510 }
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