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