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linux-user: getpriority errno fix
[qemu/kraxel.git] / linux-user / syscall.c
blobbaf00e0bf9ae7506c975f080324b63c67a6fd035
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 #include <sys/socket.h>
45 #include <sys/un.h>
46 #include <sys/uio.h>
47 #include <sys/poll.h>
48 #include <sys/times.h>
49 #include <sys/shm.h>
50 #include <sys/sem.h>
51 #include <sys/statfs.h>
52 #include <utime.h>
53 #include <sys/sysinfo.h>
54 #include <sys/utsname.h>
55 //#include <sys/user.h>
56 #include <netinet/ip.h>
57 #include <netinet/tcp.h>
58 #include <qemu-common.h>
59 #ifdef TARGET_GPROF
60 #include <sys/gmon.h>
61 #endif
62 #ifdef CONFIG_EVENTFD
63 #include <sys/eventfd.h>
64 #endif
65
66 #define termios host_termios
67 #define winsize host_winsize
68 #define termio host_termio
69 #define sgttyb host_sgttyb /* same as target */
70 #define tchars host_tchars /* same as target */
71 #define ltchars host_ltchars /* same as target */
72
73 #include <linux/termios.h>
74 #include <linux/unistd.h>
75 #include <linux/utsname.h>
76 #include <linux/cdrom.h>
77 #include <linux/hdreg.h>
78 #include <linux/soundcard.h>
79 #include <linux/kd.h>
80 #include <linux/mtio.h>
81 #include <linux/fs.h>
82 #include "linux_loop.h"
83
84 #include "qemu.h"
85 #include "qemu-common.h"
86
87 #if defined(CONFIG_USE_NPTL)
88 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
89 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
90 #else
91 /* XXX: Hardcode the above values. */
92 #define CLONE_NPTL_FLAGS2 0
93 #endif
94
95 //#define DEBUG
96
97 //#include <linux/msdos_fs.h>
98 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
99 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
100
101
102 #undef _syscall0
103 #undef _syscall1
104 #undef _syscall2
105 #undef _syscall3
106 #undef _syscall4
107 #undef _syscall5
108 #undef _syscall6
109
110 #define _syscall0(type,name) \
111 static type name (void) \
112 { \
113 return syscall(__NR_##name); \
114 }
115
116 #define _syscall1(type,name,type1,arg1) \
117 static type name (type1 arg1) \
118 { \
119 return syscall(__NR_##name, arg1); \
120 }
121
122 #define _syscall2(type,name,type1,arg1,type2,arg2) \
123 static type name (type1 arg1,type2 arg2) \
124 { \
125 return syscall(__NR_##name, arg1, arg2); \
126 }
127
128 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
129 static type name (type1 arg1,type2 arg2,type3 arg3) \
130 { \
131 return syscall(__NR_##name, arg1, arg2, arg3); \
132 }
133
134 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
135 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
136 { \
137 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
138 }
139
140 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
141 type5,arg5) \
142 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
143 { \
144 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
145 }
146
147
148 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
149 type5,arg5,type6,arg6) \
150 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
151 type6 arg6) \
152 { \
153 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
154 }
155
156
157 #define __NR_sys_uname __NR_uname
158 #define __NR_sys_faccessat __NR_faccessat
159 #define __NR_sys_fchmodat __NR_fchmodat
160 #define __NR_sys_fchownat __NR_fchownat
161 #define __NR_sys_fstatat64 __NR_fstatat64
162 #define __NR_sys_futimesat __NR_futimesat
163 #define __NR_sys_getcwd1 __NR_getcwd
164 #define __NR_sys_getdents __NR_getdents
165 #define __NR_sys_getdents64 __NR_getdents64
166 #define __NR_sys_getpriority __NR_getpriority
167 #define __NR_sys_linkat __NR_linkat
168 #define __NR_sys_mkdirat __NR_mkdirat
169 #define __NR_sys_mknodat __NR_mknodat
170 #define __NR_sys_newfstatat __NR_newfstatat
171 #define __NR_sys_openat __NR_openat
172 #define __NR_sys_readlinkat __NR_readlinkat
173 #define __NR_sys_renameat __NR_renameat
174 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
175 #define __NR_sys_symlinkat __NR_symlinkat
176 #define __NR_sys_syslog __NR_syslog
177 #define __NR_sys_tgkill __NR_tgkill
178 #define __NR_sys_tkill __NR_tkill
179 #define __NR_sys_unlinkat __NR_unlinkat
180 #define __NR_sys_utimensat __NR_utimensat
181 #define __NR_sys_futex __NR_futex
182 #define __NR_sys_inotify_init __NR_inotify_init
183 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
184 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
185
186 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
187 #define __NR__llseek __NR_lseek
188 #endif
189
190 #ifdef __NR_gettid
191 _syscall0(int, gettid)
192 #else
193 /* This is a replacement for the host gettid() and must return a host
194 errno. */
195 static int gettid(void) {
196 return -ENOSYS;
197 }
198 #endif
199 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
200 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
201 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
202 #endif
203 _syscall2(int, sys_getpriority, int, which, int, who);
204 #if defined(TARGET_NR__llseek) && !defined (__x86_64__)
205 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
206 loff_t *, res, uint, wh);
207 #endif
208 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
209 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
210 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
211 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
212 #endif
213 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
214 _syscall2(int,sys_tkill,int,tid,int,sig)
215 #endif
216 #ifdef __NR_exit_group
217 _syscall1(int,exit_group,int,error_code)
218 #endif
219 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
220 _syscall1(int,set_tid_address,int *,tidptr)
221 #endif
222 #if defined(CONFIG_USE_NPTL)
223 #if defined(TARGET_NR_futex) && defined(__NR_futex)
224 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
225 const struct timespec *,timeout,int *,uaddr2,int,val3)
226 #endif
227 #endif
228
229 static bitmask_transtbl fcntl_flags_tbl[] = {
230 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
231 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
232 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
233 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
234 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
235 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
236 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
237 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
238 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
239 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
240 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
241 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
242 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
243 #if defined(O_DIRECT)
244 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
245 #endif
246 { 0, 0, 0, 0 }
247 };
248
249 #define COPY_UTSNAME_FIELD(dest, src) \
250 do { \
251 /* __NEW_UTS_LEN doesn't include terminating null */ \
252 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
253 (dest)[__NEW_UTS_LEN] = '\0'; \
254 } while (0)
255
256 static int sys_uname(struct new_utsname *buf)
257 {
258 struct utsname uts_buf;
259
260 if (uname(&uts_buf) < 0)
261 return (-1);
262
263 /*
264 * Just in case these have some differences, we
265 * translate utsname to new_utsname (which is the
266 * struct linux kernel uses).
267 */
268
269 bzero(buf, sizeof (*buf));
270 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
271 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
272 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
273 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
274 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
275 #ifdef _GNU_SOURCE
276 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
277 #endif
278 return (0);
279
280 #undef COPY_UTSNAME_FIELD
281 }
282
283 static int sys_getcwd1(char *buf, size_t size)
284 {
285 if (getcwd(buf, size) == NULL) {
286 /* getcwd() sets errno */
287 return (-1);
288 }
289 return strlen(buf)+1;
290 }
291
292 #ifdef CONFIG_ATFILE
293 /*
294 * Host system seems to have atfile syscall stubs available. We
295 * now enable them one by one as specified by target syscall_nr.h.
296 */
297
298 #ifdef TARGET_NR_faccessat
299 static int sys_faccessat(int dirfd, const char *pathname, int mode)
300 {
301 return (faccessat(dirfd, pathname, mode, 0));
302 }
303 #endif
304 #ifdef TARGET_NR_fchmodat
305 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
306 {
307 return (fchmodat(dirfd, pathname, mode, 0));
308 }
309 #endif
310 #if defined(TARGET_NR_fchownat) && defined(USE_UID16)
311 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
312 gid_t group, int flags)
313 {
314 return (fchownat(dirfd, pathname, owner, group, flags));
315 }
316 #endif
317 #ifdef __NR_fstatat64
318 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
319 int flags)
320 {
321 return (fstatat(dirfd, pathname, buf, flags));
322 }
323 #endif
324 #ifdef __NR_newfstatat
325 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
326 int flags)
327 {
328 return (fstatat(dirfd, pathname, buf, flags));
329 }
330 #endif
331 #ifdef TARGET_NR_futimesat
332 static int sys_futimesat(int dirfd, const char *pathname,
333 const struct timeval times[2])
334 {
335 return (futimesat(dirfd, pathname, times));
336 }
337 #endif
338 #ifdef TARGET_NR_linkat
339 static int sys_linkat(int olddirfd, const char *oldpath,
340 int newdirfd, const char *newpath, int flags)
341 {
342 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
343 }
344 #endif
345 #ifdef TARGET_NR_mkdirat
346 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
347 {
348 return (mkdirat(dirfd, pathname, mode));
349 }
350 #endif
351 #ifdef TARGET_NR_mknodat
352 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
353 dev_t dev)
354 {
355 return (mknodat(dirfd, pathname, mode, dev));
356 }
357 #endif
358 #ifdef TARGET_NR_openat
359 static int sys_openat(int dirfd, const char *pathname, int flags, ...)
360 {
361 /*
362 * open(2) has extra parameter 'mode' when called with
363 * flag O_CREAT.
364 */
365 if ((flags & O_CREAT) != 0) {
366 va_list ap;
367 mode_t mode;
368
369 /*
370 * Get the 'mode' parameter and translate it to
371 * host bits.
372 */
373 va_start(ap, flags);
374 mode = va_arg(ap, mode_t);
375 mode = target_to_host_bitmask(mode, fcntl_flags_tbl);
376 va_end(ap);
377
378 return (openat(dirfd, pathname, flags, mode));
379 }
380 return (openat(dirfd, pathname, flags));
381 }
382 #endif
383 #ifdef TARGET_NR_readlinkat
384 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
385 {
386 return (readlinkat(dirfd, pathname, buf, bufsiz));
387 }
388 #endif
389 #ifdef TARGET_NR_renameat
390 static int sys_renameat(int olddirfd, const char *oldpath,
391 int newdirfd, const char *newpath)
392 {
393 return (renameat(olddirfd, oldpath, newdirfd, newpath));
394 }
395 #endif
396 #ifdef TARGET_NR_symlinkat
397 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
398 {
399 return (symlinkat(oldpath, newdirfd, newpath));
400 }
401 #endif
402 #ifdef TARGET_NR_unlinkat
403 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
404 {
405 return (unlinkat(dirfd, pathname, flags));
406 }
407 #endif
408 #else /* !CONFIG_ATFILE */
409
410 /*
411 * Try direct syscalls instead
412 */
413 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
414 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
415 #endif
416 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
417 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
418 #endif
419 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
420 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
421 uid_t,owner,gid_t,group,int,flags)
422 #endif
423 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
424 defined(__NR_fstatat64)
425 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
426 struct stat *,buf,int,flags)
427 #endif
428 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
429 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
430 const struct timeval *,times)
431 #endif
432 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
433 defined(__NR_newfstatat)
434 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
435 struct stat *,buf,int,flags)
436 #endif
437 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
438 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
439 int,newdirfd,const char *,newpath,int,flags)
440 #endif
441 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
442 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
443 #endif
444 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
445 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
446 mode_t,mode,dev_t,dev)
447 #endif
448 #if defined(TARGET_NR_openat) && defined(__NR_openat)
449 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
450 #endif
451 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
452 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
453 char *,buf,size_t,bufsize)
454 #endif
455 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
456 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
457 int,newdirfd,const char *,newpath)
458 #endif
459 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
460 _syscall3(int,sys_symlinkat,const char *,oldpath,
461 int,newdirfd,const char *,newpath)
462 #endif
463 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
464 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
465 #endif
466
467 #endif /* CONFIG_ATFILE */
468
469 #ifdef CONFIG_UTIMENSAT
470 static int sys_utimensat(int dirfd, const char *pathname,
471 const struct timespec times[2], int flags)
472 {
473 if (pathname == NULL)
474 return futimens(dirfd, times);
475 else
476 return utimensat(dirfd, pathname, times, flags);
477 }
478 #else
479 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
480 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
481 const struct timespec *,tsp,int,flags)
482 #endif
483 #endif /* CONFIG_UTIMENSAT */
484
485 #ifdef CONFIG_INOTIFY
486 #include <sys/inotify.h>
487
488 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
489 static int sys_inotify_init(void)
490 {
491 return (inotify_init());
492 }
493 #endif
494 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
495 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
496 {
497 return (inotify_add_watch(fd, pathname, mask));
498 }
499 #endif
500 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
501 static int sys_inotify_rm_watch(int fd, int32_t wd)
502 {
503 return (inotify_rm_watch(fd, wd));
504 }
505 #endif
506 #else
507 /* Userspace can usually survive runtime without inotify */
508 #undef TARGET_NR_inotify_init
509 #undef TARGET_NR_inotify_add_watch
510 #undef TARGET_NR_inotify_rm_watch
511 #endif /* CONFIG_INOTIFY */
512
513
514 extern int personality(int);
515 extern int flock(int, int);
516 extern int setfsuid(int);
517 extern int setfsgid(int);
518 extern int setgroups(int, gid_t *);
519
520 #define ERRNO_TABLE_SIZE 1200
521
522 /* target_to_host_errno_table[] is initialized from
523 * host_to_target_errno_table[] in syscall_init(). */
524 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
525 };
526
527 /*
528 * This list is the union of errno values overridden in asm-<arch>/errno.h
529 * minus the errnos that are not actually generic to all archs.
530 */
531 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
532 [EIDRM] = TARGET_EIDRM,
533 [ECHRNG] = TARGET_ECHRNG,
534 [EL2NSYNC] = TARGET_EL2NSYNC,
535 [EL3HLT] = TARGET_EL3HLT,
536 [EL3RST] = TARGET_EL3RST,
537 [ELNRNG] = TARGET_ELNRNG,
538 [EUNATCH] = TARGET_EUNATCH,
539 [ENOCSI] = TARGET_ENOCSI,
540 [EL2HLT] = TARGET_EL2HLT,
541 [EDEADLK] = TARGET_EDEADLK,
542 [ENOLCK] = TARGET_ENOLCK,
543 [EBADE] = TARGET_EBADE,
544 [EBADR] = TARGET_EBADR,
545 [EXFULL] = TARGET_EXFULL,
546 [ENOANO] = TARGET_ENOANO,
547 [EBADRQC] = TARGET_EBADRQC,
548 [EBADSLT] = TARGET_EBADSLT,
549 [EBFONT] = TARGET_EBFONT,
550 [ENOSTR] = TARGET_ENOSTR,
551 [ENODATA] = TARGET_ENODATA,
552 [ETIME] = TARGET_ETIME,
553 [ENOSR] = TARGET_ENOSR,
554 [ENONET] = TARGET_ENONET,
555 [ENOPKG] = TARGET_ENOPKG,
556 [EREMOTE] = TARGET_EREMOTE,
557 [ENOLINK] = TARGET_ENOLINK,
558 [EADV] = TARGET_EADV,
559 [ESRMNT] = TARGET_ESRMNT,
560 [ECOMM] = TARGET_ECOMM,
561 [EPROTO] = TARGET_EPROTO,
562 [EDOTDOT] = TARGET_EDOTDOT,
563 [EMULTIHOP] = TARGET_EMULTIHOP,
564 [EBADMSG] = TARGET_EBADMSG,
565 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
566 [EOVERFLOW] = TARGET_EOVERFLOW,
567 [ENOTUNIQ] = TARGET_ENOTUNIQ,
568 [EBADFD] = TARGET_EBADFD,
569 [EREMCHG] = TARGET_EREMCHG,
570 [ELIBACC] = TARGET_ELIBACC,
571 [ELIBBAD] = TARGET_ELIBBAD,
572 [ELIBSCN] = TARGET_ELIBSCN,
573 [ELIBMAX] = TARGET_ELIBMAX,
574 [ELIBEXEC] = TARGET_ELIBEXEC,
575 [EILSEQ] = TARGET_EILSEQ,
576 [ENOSYS] = TARGET_ENOSYS,
577 [ELOOP] = TARGET_ELOOP,
578 [ERESTART] = TARGET_ERESTART,
579 [ESTRPIPE] = TARGET_ESTRPIPE,
580 [ENOTEMPTY] = TARGET_ENOTEMPTY,
581 [EUSERS] = TARGET_EUSERS,
582 [ENOTSOCK] = TARGET_ENOTSOCK,
583 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
584 [EMSGSIZE] = TARGET_EMSGSIZE,
585 [EPROTOTYPE] = TARGET_EPROTOTYPE,
586 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
587 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
588 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
589 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
590 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
591 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
592 [EADDRINUSE] = TARGET_EADDRINUSE,
593 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
594 [ENETDOWN] = TARGET_ENETDOWN,
595 [ENETUNREACH] = TARGET_ENETUNREACH,
596 [ENETRESET] = TARGET_ENETRESET,
597 [ECONNABORTED] = TARGET_ECONNABORTED,
598 [ECONNRESET] = TARGET_ECONNRESET,
599 [ENOBUFS] = TARGET_ENOBUFS,
600 [EISCONN] = TARGET_EISCONN,
601 [ENOTCONN] = TARGET_ENOTCONN,
602 [EUCLEAN] = TARGET_EUCLEAN,
603 [ENOTNAM] = TARGET_ENOTNAM,
604 [ENAVAIL] = TARGET_ENAVAIL,
605 [EISNAM] = TARGET_EISNAM,
606 [EREMOTEIO] = TARGET_EREMOTEIO,
607 [ESHUTDOWN] = TARGET_ESHUTDOWN,
608 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
609 [ETIMEDOUT] = TARGET_ETIMEDOUT,
610 [ECONNREFUSED] = TARGET_ECONNREFUSED,
611 [EHOSTDOWN] = TARGET_EHOSTDOWN,
612 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
613 [EALREADY] = TARGET_EALREADY,
614 [EINPROGRESS] = TARGET_EINPROGRESS,
615 [ESTALE] = TARGET_ESTALE,
616 [ECANCELED] = TARGET_ECANCELED,
617 [ENOMEDIUM] = TARGET_ENOMEDIUM,
618 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
619 #ifdef ENOKEY
620 [ENOKEY] = TARGET_ENOKEY,
621 #endif
622 #ifdef EKEYEXPIRED
623 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
624 #endif
625 #ifdef EKEYREVOKED
626 [EKEYREVOKED] = TARGET_EKEYREVOKED,
627 #endif
628 #ifdef EKEYREJECTED
629 [EKEYREJECTED] = TARGET_EKEYREJECTED,
630 #endif
631 #ifdef EOWNERDEAD
632 [EOWNERDEAD] = TARGET_EOWNERDEAD,
633 #endif
634 #ifdef ENOTRECOVERABLE
635 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
636 #endif
637 };
638
639 static inline int host_to_target_errno(int err)
640 {
641 if(host_to_target_errno_table[err])
642 return host_to_target_errno_table[err];
643 return err;
644 }
645
646 static inline int target_to_host_errno(int err)
647 {
648 if (target_to_host_errno_table[err])
649 return target_to_host_errno_table[err];
650 return err;
651 }
652
653 static inline abi_long get_errno(abi_long ret)
654 {
655 if (ret == -1)
656 return -host_to_target_errno(errno);
657 else
658 return ret;
659 }
660
661 static inline int is_error(abi_long ret)
662 {
663 return (abi_ulong)ret >= (abi_ulong)(-4096);
664 }
665
666 char *target_strerror(int err)
667 {
668 return strerror(target_to_host_errno(err));
669 }
670
671 static abi_ulong target_brk;
672 static abi_ulong target_original_brk;
673
674 void target_set_brk(abi_ulong new_brk)
675 {
676 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
677 }
678
679 /* do_brk() must return target values and target errnos. */
680 abi_long do_brk(abi_ulong new_brk)
681 {
682 abi_ulong brk_page;
683 abi_long mapped_addr;
684 int new_alloc_size;
685
686 if (!new_brk)
687 return target_brk;
688 if (new_brk < target_original_brk)
689 return target_brk;
690
691 brk_page = HOST_PAGE_ALIGN(target_brk);
692
693 /* If the new brk is less than this, set it and we're done... */
694 if (new_brk < brk_page) {
695 target_brk = new_brk;
696 return target_brk;
697 }
698
699 /* We need to allocate more memory after the brk... */
700 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
701 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
702 PROT_READ|PROT_WRITE,
703 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
704
705 if (!is_error(mapped_addr))
706 target_brk = new_brk;
707
708 return target_brk;
709 }
710
711 static inline abi_long copy_from_user_fdset(fd_set *fds,
712 abi_ulong target_fds_addr,
713 int n)
714 {
715 int i, nw, j, k;
716 abi_ulong b, *target_fds;
717
718 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
719 if (!(target_fds = lock_user(VERIFY_READ,
720 target_fds_addr,
721 sizeof(abi_ulong) * nw,
722 1)))
723 return -TARGET_EFAULT;
724
725 FD_ZERO(fds);
726 k = 0;
727 for (i = 0; i < nw; i++) {
728 /* grab the abi_ulong */
729 __get_user(b, &target_fds[i]);
730 for (j = 0; j < TARGET_ABI_BITS; j++) {
731 /* check the bit inside the abi_ulong */
732 if ((b >> j) & 1)
733 FD_SET(k, fds);
734 k++;
735 }
736 }
737
738 unlock_user(target_fds, target_fds_addr, 0);
739
740 return 0;
741 }
742
743 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
744 const fd_set *fds,
745 int n)
746 {
747 int i, nw, j, k;
748 abi_long v;
749 abi_ulong *target_fds;
750
751 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
752 if (!(target_fds = lock_user(VERIFY_WRITE,
753 target_fds_addr,
754 sizeof(abi_ulong) * nw,
755 0)))
756 return -TARGET_EFAULT;
757
758 k = 0;
759 for (i = 0; i < nw; i++) {
760 v = 0;
761 for (j = 0; j < TARGET_ABI_BITS; j++) {
762 v |= ((FD_ISSET(k, fds) != 0) << j);
763 k++;
764 }
765 __put_user(v, &target_fds[i]);
766 }
767
768 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
769
770 return 0;
771 }
772
773 #if defined(__alpha__)
774 #define HOST_HZ 1024
775 #else
776 #define HOST_HZ 100
777 #endif
778
779 static inline abi_long host_to_target_clock_t(long ticks)
780 {
781 #if HOST_HZ == TARGET_HZ
782 return ticks;
783 #else
784 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
785 #endif
786 }
787
788 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
789 const struct rusage *rusage)
790 {
791 struct target_rusage *target_rusage;
792
793 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
794 return -TARGET_EFAULT;
795 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
796 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
797 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
798 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
799 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
800 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
801 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
802 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
803 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
804 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
805 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
806 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
807 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
808 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
809 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
810 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
811 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
812 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
813 unlock_user_struct(target_rusage, target_addr, 1);
814
815 return 0;
816 }
817
818 static inline abi_long copy_from_user_timeval(struct timeval *tv,
819 abi_ulong target_tv_addr)
820 {
821 struct target_timeval *target_tv;
822
823 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
824 return -TARGET_EFAULT;
825
826 __get_user(tv->tv_sec, &target_tv->tv_sec);
827 __get_user(tv->tv_usec, &target_tv->tv_usec);
828
829 unlock_user_struct(target_tv, target_tv_addr, 0);
830
831 return 0;
832 }
833
834 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
835 const struct timeval *tv)
836 {
837 struct target_timeval *target_tv;
838
839 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
840 return -TARGET_EFAULT;
841
842 __put_user(tv->tv_sec, &target_tv->tv_sec);
843 __put_user(tv->tv_usec, &target_tv->tv_usec);
844
845 unlock_user_struct(target_tv, target_tv_addr, 1);
846
847 return 0;
848 }
849
850 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
851 #include <mqueue.h>
852
853 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
854 abi_ulong target_mq_attr_addr)
855 {
856 struct target_mq_attr *target_mq_attr;
857
858 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
859 target_mq_attr_addr, 1))
860 return -TARGET_EFAULT;
861
862 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
863 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
864 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
865 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
866
867 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
868
869 return 0;
870 }
871
872 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
873 const struct mq_attr *attr)
874 {
875 struct target_mq_attr *target_mq_attr;
876
877 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
878 target_mq_attr_addr, 0))
879 return -TARGET_EFAULT;
880
881 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
882 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
883 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
884 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
885
886 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
887
888 return 0;
889 }
890 #endif
891
892 /* do_select() must return target values and target errnos. */
893 static abi_long do_select(int n,
894 abi_ulong rfd_addr, abi_ulong wfd_addr,
895 abi_ulong efd_addr, abi_ulong target_tv_addr)
896 {
897 fd_set rfds, wfds, efds;
898 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
899 struct timeval tv, *tv_ptr;
900 abi_long ret;
901
902 if (rfd_addr) {
903 if (copy_from_user_fdset(&rfds, rfd_addr, n))
904 return -TARGET_EFAULT;
905 rfds_ptr = &rfds;
906 } else {
907 rfds_ptr = NULL;
908 }
909 if (wfd_addr) {
910 if (copy_from_user_fdset(&wfds, wfd_addr, n))
911 return -TARGET_EFAULT;
912 wfds_ptr = &wfds;
913 } else {
914 wfds_ptr = NULL;
915 }
916 if (efd_addr) {
917 if (copy_from_user_fdset(&efds, efd_addr, n))
918 return -TARGET_EFAULT;
919 efds_ptr = &efds;
920 } else {
921 efds_ptr = NULL;
922 }
923
924 if (target_tv_addr) {
925 if (copy_from_user_timeval(&tv, target_tv_addr))
926 return -TARGET_EFAULT;
927 tv_ptr = &tv;
928 } else {
929 tv_ptr = NULL;
930 }
931
932 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
933
934 if (!is_error(ret)) {
935 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
936 return -TARGET_EFAULT;
937 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
938 return -TARGET_EFAULT;
939 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
940 return -TARGET_EFAULT;
941
942 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
943 return -TARGET_EFAULT;
944 }
945
946 return ret;
947 }
948
949 static abi_long do_pipe2(int host_pipe[], int flags)
950 {
951 #ifdef CONFIG_PIPE2
952 return pipe2(host_pipe, flags);
953 #else
954 return -ENOSYS;
955 #endif
956 }
957
958 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, int flags)
959 {
960 int host_pipe[2];
961 abi_long ret;
962 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
963
964 if (is_error(ret))
965 return get_errno(ret);
966 #if defined(TARGET_MIPS)
967 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
968 ret = host_pipe[0];
969 #elif defined(TARGET_SH4)
970 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
971 ret = host_pipe[0];
972 #else
973 if (put_user_s32(host_pipe[0], pipedes)
974 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
975 return -TARGET_EFAULT;
976 #endif
977 return get_errno(ret);
978 }
979
980 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
981 abi_ulong target_addr,
982 socklen_t len)
983 {
984 struct target_ip_mreqn *target_smreqn;
985
986 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
987 if (!target_smreqn)
988 return -TARGET_EFAULT;
989 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
990 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
991 if (len == sizeof(struct target_ip_mreqn))
992 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex);
993 unlock_user(target_smreqn, target_addr, 0);
994
995 return 0;
996 }
997
998 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
999 abi_ulong target_addr,
1000 socklen_t len)
1001 {
1002 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1003 sa_family_t sa_family;
1004 struct target_sockaddr *target_saddr;
1005
1006 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1007 if (!target_saddr)
1008 return -TARGET_EFAULT;
1009
1010 sa_family = tswap16(target_saddr->sa_family);
1011
1012 /* Oops. The caller might send a incomplete sun_path; sun_path
1013 * must be terminated by \0 (see the manual page), but
1014 * unfortunately it is quite common to specify sockaddr_un
1015 * length as "strlen(x->sun_path)" while it should be
1016 * "strlen(...) + 1". We'll fix that here if needed.
1017 * Linux kernel has a similar feature.
1018 */
1019
1020 if (sa_family == AF_UNIX) {
1021 if (len < unix_maxlen && len > 0) {
1022 char *cp = (char*)target_saddr;
1023
1024 if ( cp[len-1] && !cp[len] )
1025 len++;
1026 }
1027 if (len > unix_maxlen)
1028 len = unix_maxlen;
1029 }
1030
1031 memcpy(addr, target_saddr, len);
1032 addr->sa_family = sa_family;
1033 unlock_user(target_saddr, target_addr, 0);
1034
1035 return 0;
1036 }
1037
1038 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1039 struct sockaddr *addr,
1040 socklen_t len)
1041 {
1042 struct target_sockaddr *target_saddr;
1043
1044 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1045 if (!target_saddr)
1046 return -TARGET_EFAULT;
1047 memcpy(target_saddr, addr, len);
1048 target_saddr->sa_family = tswap16(addr->sa_family);
1049 unlock_user(target_saddr, target_addr, len);
1050
1051 return 0;
1052 }
1053
1054 /* ??? Should this also swap msgh->name? */
1055 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1056 struct target_msghdr *target_msgh)
1057 {
1058 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1059 abi_long msg_controllen;
1060 abi_ulong target_cmsg_addr;
1061 struct target_cmsghdr *target_cmsg;
1062 socklen_t space = 0;
1063
1064 msg_controllen = tswapl(target_msgh->msg_controllen);
1065 if (msg_controllen < sizeof (struct target_cmsghdr))
1066 goto the_end;
1067 target_cmsg_addr = tswapl(target_msgh->msg_control);
1068 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1069 if (!target_cmsg)
1070 return -TARGET_EFAULT;
1071
1072 while (cmsg && target_cmsg) {
1073 void *data = CMSG_DATA(cmsg);
1074 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1075
1076 int len = tswapl(target_cmsg->cmsg_len)
1077 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1078
1079 space += CMSG_SPACE(len);
1080 if (space > msgh->msg_controllen) {
1081 space -= CMSG_SPACE(len);
1082 gemu_log("Host cmsg overflow\n");
1083 break;
1084 }
1085
1086 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1087 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1088 cmsg->cmsg_len = CMSG_LEN(len);
1089
1090 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1091 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1092 memcpy(data, target_data, len);
1093 } else {
1094 int *fd = (int *)data;
1095 int *target_fd = (int *)target_data;
1096 int i, numfds = len / sizeof(int);
1097
1098 for (i = 0; i < numfds; i++)
1099 fd[i] = tswap32(target_fd[i]);
1100 }
1101
1102 cmsg = CMSG_NXTHDR(msgh, cmsg);
1103 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1104 }
1105 unlock_user(target_cmsg, target_cmsg_addr, 0);
1106 the_end:
1107 msgh->msg_controllen = space;
1108 return 0;
1109 }
1110
1111 /* ??? Should this also swap msgh->name? */
1112 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1113 struct msghdr *msgh)
1114 {
1115 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1116 abi_long msg_controllen;
1117 abi_ulong target_cmsg_addr;
1118 struct target_cmsghdr *target_cmsg;
1119 socklen_t space = 0;
1120
1121 msg_controllen = tswapl(target_msgh->msg_controllen);
1122 if (msg_controllen < sizeof (struct target_cmsghdr))
1123 goto the_end;
1124 target_cmsg_addr = tswapl(target_msgh->msg_control);
1125 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1126 if (!target_cmsg)
1127 return -TARGET_EFAULT;
1128
1129 while (cmsg && target_cmsg) {
1130 void *data = CMSG_DATA(cmsg);
1131 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1132
1133 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1134
1135 space += TARGET_CMSG_SPACE(len);
1136 if (space > msg_controllen) {
1137 space -= TARGET_CMSG_SPACE(len);
1138 gemu_log("Target cmsg overflow\n");
1139 break;
1140 }
1141
1142 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1143 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1144 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
1145
1146 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1147 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1148 memcpy(target_data, data, len);
1149 } else {
1150 int *fd = (int *)data;
1151 int *target_fd = (int *)target_data;
1152 int i, numfds = len / sizeof(int);
1153
1154 for (i = 0; i < numfds; i++)
1155 target_fd[i] = tswap32(fd[i]);
1156 }
1157
1158 cmsg = CMSG_NXTHDR(msgh, cmsg);
1159 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1160 }
1161 unlock_user(target_cmsg, target_cmsg_addr, space);
1162 the_end:
1163 target_msgh->msg_controllen = tswapl(space);
1164 return 0;
1165 }
1166
1167 /* do_setsockopt() Must return target values and target errnos. */
1168 static abi_long do_setsockopt(int sockfd, int level, int optname,
1169 abi_ulong optval_addr, socklen_t optlen)
1170 {
1171 abi_long ret;
1172 int val;
1173 struct ip_mreqn *ip_mreq;
1174 struct ip_mreq_source *ip_mreq_source;
1175
1176 switch(level) {
1177 case SOL_TCP:
1178 /* TCP options all take an 'int' value. */
1179 if (optlen < sizeof(uint32_t))
1180 return -TARGET_EINVAL;
1181
1182 if (get_user_u32(val, optval_addr))
1183 return -TARGET_EFAULT;
1184 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1185 break;
1186 case SOL_IP:
1187 switch(optname) {
1188 case IP_TOS:
1189 case IP_TTL:
1190 case IP_HDRINCL:
1191 case IP_ROUTER_ALERT:
1192 case IP_RECVOPTS:
1193 case IP_RETOPTS:
1194 case IP_PKTINFO:
1195 case IP_MTU_DISCOVER:
1196 case IP_RECVERR:
1197 case IP_RECVTOS:
1198 #ifdef IP_FREEBIND
1199 case IP_FREEBIND:
1200 #endif
1201 case IP_MULTICAST_TTL:
1202 case IP_MULTICAST_LOOP:
1203 val = 0;
1204 if (optlen >= sizeof(uint32_t)) {
1205 if (get_user_u32(val, optval_addr))
1206 return -TARGET_EFAULT;
1207 } else if (optlen >= 1) {
1208 if (get_user_u8(val, optval_addr))
1209 return -TARGET_EFAULT;
1210 }
1211 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1212 break;
1213 case IP_ADD_MEMBERSHIP:
1214 case IP_DROP_MEMBERSHIP:
1215 if (optlen < sizeof (struct target_ip_mreq) ||
1216 optlen > sizeof (struct target_ip_mreqn))
1217 return -TARGET_EINVAL;
1218
1219 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1220 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1221 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1222 break;
1223
1224 case IP_BLOCK_SOURCE:
1225 case IP_UNBLOCK_SOURCE:
1226 case IP_ADD_SOURCE_MEMBERSHIP:
1227 case IP_DROP_SOURCE_MEMBERSHIP:
1228 if (optlen != sizeof (struct target_ip_mreq_source))
1229 return -TARGET_EINVAL;
1230
1231 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1232 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1233 unlock_user (ip_mreq_source, optval_addr, 0);
1234 break;
1235
1236 default:
1237 goto unimplemented;
1238 }
1239 break;
1240 case TARGET_SOL_SOCKET:
1241 switch (optname) {
1242 /* Options with 'int' argument. */
1243 case TARGET_SO_DEBUG:
1244 optname = SO_DEBUG;
1245 break;
1246 case TARGET_SO_REUSEADDR:
1247 optname = SO_REUSEADDR;
1248 break;
1249 case TARGET_SO_TYPE:
1250 optname = SO_TYPE;
1251 break;
1252 case TARGET_SO_ERROR:
1253 optname = SO_ERROR;
1254 break;
1255 case TARGET_SO_DONTROUTE:
1256 optname = SO_DONTROUTE;
1257 break;
1258 case TARGET_SO_BROADCAST:
1259 optname = SO_BROADCAST;
1260 break;
1261 case TARGET_SO_SNDBUF:
1262 optname = SO_SNDBUF;
1263 break;
1264 case TARGET_SO_RCVBUF:
1265 optname = SO_RCVBUF;
1266 break;
1267 case TARGET_SO_KEEPALIVE:
1268 optname = SO_KEEPALIVE;
1269 break;
1270 case TARGET_SO_OOBINLINE:
1271 optname = SO_OOBINLINE;
1272 break;
1273 case TARGET_SO_NO_CHECK:
1274 optname = SO_NO_CHECK;
1275 break;
1276 case TARGET_SO_PRIORITY:
1277 optname = SO_PRIORITY;
1278 break;
1279 #ifdef SO_BSDCOMPAT
1280 case TARGET_SO_BSDCOMPAT:
1281 optname = SO_BSDCOMPAT;
1282 break;
1283 #endif
1284 case TARGET_SO_PASSCRED:
1285 optname = SO_PASSCRED;
1286 break;
1287 case TARGET_SO_TIMESTAMP:
1288 optname = SO_TIMESTAMP;
1289 break;
1290 case TARGET_SO_RCVLOWAT:
1291 optname = SO_RCVLOWAT;
1292 break;
1293 case TARGET_SO_RCVTIMEO:
1294 optname = SO_RCVTIMEO;
1295 break;
1296 case TARGET_SO_SNDTIMEO:
1297 optname = SO_SNDTIMEO;
1298 break;
1299 break;
1300 default:
1301 goto unimplemented;
1302 }
1303 if (optlen < sizeof(uint32_t))
1304 return -TARGET_EINVAL;
1305
1306 if (get_user_u32(val, optval_addr))
1307 return -TARGET_EFAULT;
1308 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1309 break;
1310 default:
1311 unimplemented:
1312 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
1313 ret = -TARGET_ENOPROTOOPT;
1314 }
1315 return ret;
1316 }
1317
1318 /* do_getsockopt() Must return target values and target errnos. */
1319 static abi_long do_getsockopt(int sockfd, int level, int optname,
1320 abi_ulong optval_addr, abi_ulong optlen)
1321 {
1322 abi_long ret;
1323 int len, val;
1324 socklen_t lv;
1325
1326 switch(level) {
1327 case TARGET_SOL_SOCKET:
1328 level = SOL_SOCKET;
1329 switch (optname) {
1330 case TARGET_SO_LINGER:
1331 case TARGET_SO_RCVTIMEO:
1332 case TARGET_SO_SNDTIMEO:
1333 case TARGET_SO_PEERCRED:
1334 case TARGET_SO_PEERNAME:
1335 /* These don't just return a single integer */
1336 goto unimplemented;
1337 default:
1338 goto int_case;
1339 }
1340 break;
1341 case SOL_TCP:
1342 /* TCP options all take an 'int' value. */
1343 int_case:
1344 if (get_user_u32(len, optlen))
1345 return -TARGET_EFAULT;
1346 if (len < 0)
1347 return -TARGET_EINVAL;
1348 lv = sizeof(int);
1349 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1350 if (ret < 0)
1351 return ret;
1352 if (len > lv)
1353 len = lv;
1354 if (len == 4) {
1355 if (put_user_u32(val, optval_addr))
1356 return -TARGET_EFAULT;
1357 } else {
1358 if (put_user_u8(val, optval_addr))
1359 return -TARGET_EFAULT;
1360 }
1361 if (put_user_u32(len, optlen))
1362 return -TARGET_EFAULT;
1363 break;
1364 case SOL_IP:
1365 switch(optname) {
1366 case IP_TOS:
1367 case IP_TTL:
1368 case IP_HDRINCL:
1369 case IP_ROUTER_ALERT:
1370 case IP_RECVOPTS:
1371 case IP_RETOPTS:
1372 case IP_PKTINFO:
1373 case IP_MTU_DISCOVER:
1374 case IP_RECVERR:
1375 case IP_RECVTOS:
1376 #ifdef IP_FREEBIND
1377 case IP_FREEBIND:
1378 #endif
1379 case IP_MULTICAST_TTL:
1380 case IP_MULTICAST_LOOP:
1381 if (get_user_u32(len, optlen))
1382 return -TARGET_EFAULT;
1383 if (len < 0)
1384 return -TARGET_EINVAL;
1385 lv = sizeof(int);
1386 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1387 if (ret < 0)
1388 return ret;
1389 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1390 len = 1;
1391 if (put_user_u32(len, optlen)
1392 || put_user_u8(val, optval_addr))
1393 return -TARGET_EFAULT;
1394 } else {
1395 if (len > sizeof(int))
1396 len = sizeof(int);
1397 if (put_user_u32(len, optlen)
1398 || put_user_u32(val, optval_addr))
1399 return -TARGET_EFAULT;
1400 }
1401 break;
1402 default:
1403 ret = -TARGET_ENOPROTOOPT;
1404 break;
1405 }
1406 break;
1407 default:
1408 unimplemented:
1409 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1410 level, optname);
1411 ret = -TARGET_EOPNOTSUPP;
1412 break;
1413 }
1414 return ret;
1415 }
1416
1417 /* FIXME
1418 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1419 * other lock functions have a return code of 0 for failure.
1420 */
1421 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1422 int count, int copy)
1423 {
1424 struct target_iovec *target_vec;
1425 abi_ulong base;
1426 int i;
1427
1428 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1429 if (!target_vec)
1430 return -TARGET_EFAULT;
1431 for(i = 0;i < count; i++) {
1432 base = tswapl(target_vec[i].iov_base);
1433 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1434 if (vec[i].iov_len != 0) {
1435 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1436 /* Don't check lock_user return value. We must call writev even
1437 if a element has invalid base address. */
1438 } else {
1439 /* zero length pointer is ignored */
1440 vec[i].iov_base = NULL;
1441 }
1442 }
1443 unlock_user (target_vec, target_addr, 0);
1444 return 0;
1445 }
1446
1447 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1448 int count, int copy)
1449 {
1450 struct target_iovec *target_vec;
1451 abi_ulong base;
1452 int i;
1453
1454 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1455 if (!target_vec)
1456 return -TARGET_EFAULT;
1457 for(i = 0;i < count; i++) {
1458 if (target_vec[i].iov_base) {
1459 base = tswapl(target_vec[i].iov_base);
1460 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1461 }
1462 }
1463 unlock_user (target_vec, target_addr, 0);
1464
1465 return 0;
1466 }
1467
1468 /* do_socket() Must return target values and target errnos. */
1469 static abi_long do_socket(int domain, int type, int protocol)
1470 {
1471 #if defined(TARGET_MIPS)
1472 switch(type) {
1473 case TARGET_SOCK_DGRAM:
1474 type = SOCK_DGRAM;
1475 break;
1476 case TARGET_SOCK_STREAM:
1477 type = SOCK_STREAM;
1478 break;
1479 case TARGET_SOCK_RAW:
1480 type = SOCK_RAW;
1481 break;
1482 case TARGET_SOCK_RDM:
1483 type = SOCK_RDM;
1484 break;
1485 case TARGET_SOCK_SEQPACKET:
1486 type = SOCK_SEQPACKET;
1487 break;
1488 case TARGET_SOCK_PACKET:
1489 type = SOCK_PACKET;
1490 break;
1491 }
1492 #endif
1493 if (domain == PF_NETLINK)
1494 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1495 return get_errno(socket(domain, type, protocol));
1496 }
1497
1498 /* do_bind() Must return target values and target errnos. */
1499 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1500 socklen_t addrlen)
1501 {
1502 void *addr;
1503 abi_long ret;
1504
1505 if (addrlen < 0)
1506 return -TARGET_EINVAL;
1507
1508 addr = alloca(addrlen+1);
1509
1510 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1511 if (ret)
1512 return ret;
1513
1514 return get_errno(bind(sockfd, addr, addrlen));
1515 }
1516
1517 /* do_connect() Must return target values and target errnos. */
1518 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1519 socklen_t addrlen)
1520 {
1521 void *addr;
1522 abi_long ret;
1523
1524 if (addrlen < 0)
1525 return -TARGET_EINVAL;
1526
1527 addr = alloca(addrlen);
1528
1529 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1530 if (ret)
1531 return ret;
1532
1533 return get_errno(connect(sockfd, addr, addrlen));
1534 }
1535
1536 /* do_sendrecvmsg() Must return target values and target errnos. */
1537 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1538 int flags, int send)
1539 {
1540 abi_long ret, len;
1541 struct target_msghdr *msgp;
1542 struct msghdr msg;
1543 int count;
1544 struct iovec *vec;
1545 abi_ulong target_vec;
1546
1547 /* FIXME */
1548 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1549 msgp,
1550 target_msg,
1551 send ? 1 : 0))
1552 return -TARGET_EFAULT;
1553 if (msgp->msg_name) {
1554 msg.msg_namelen = tswap32(msgp->msg_namelen);
1555 msg.msg_name = alloca(msg.msg_namelen);
1556 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1557 msg.msg_namelen);
1558 if (ret) {
1559 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1560 return ret;
1561 }
1562 } else {
1563 msg.msg_name = NULL;
1564 msg.msg_namelen = 0;
1565 }
1566 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1567 msg.msg_control = alloca(msg.msg_controllen);
1568 msg.msg_flags = tswap32(msgp->msg_flags);
1569
1570 count = tswapl(msgp->msg_iovlen);
1571 vec = alloca(count * sizeof(struct iovec));
1572 target_vec = tswapl(msgp->msg_iov);
1573 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1574 msg.msg_iovlen = count;
1575 msg.msg_iov = vec;
1576
1577 if (send) {
1578 ret = target_to_host_cmsg(&msg, msgp);
1579 if (ret == 0)
1580 ret = get_errno(sendmsg(fd, &msg, flags));
1581 } else {
1582 ret = get_errno(recvmsg(fd, &msg, flags));
1583 if (!is_error(ret)) {
1584 len = ret;
1585 ret = host_to_target_cmsg(msgp, &msg);
1586 if (!is_error(ret))
1587 ret = len;
1588 }
1589 }
1590 unlock_iovec(vec, target_vec, count, !send);
1591 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1592 return ret;
1593 }
1594
1595 /* do_accept() Must return target values and target errnos. */
1596 static abi_long do_accept(int fd, abi_ulong target_addr,
1597 abi_ulong target_addrlen_addr)
1598 {
1599 socklen_t addrlen;
1600 void *addr;
1601 abi_long ret;
1602
1603 if (target_addr == 0)
1604 return get_errno(accept(fd, NULL, NULL));
1605
1606 /* linux returns EINVAL if addrlen pointer is invalid */
1607 if (get_user_u32(addrlen, target_addrlen_addr))
1608 return -TARGET_EINVAL;
1609
1610 if (addrlen < 0)
1611 return -TARGET_EINVAL;
1612
1613 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1614 return -TARGET_EINVAL;
1615
1616 addr = alloca(addrlen);
1617
1618 ret = get_errno(accept(fd, addr, &addrlen));
1619 if (!is_error(ret)) {
1620 host_to_target_sockaddr(target_addr, addr, addrlen);
1621 if (put_user_u32(addrlen, target_addrlen_addr))
1622 ret = -TARGET_EFAULT;
1623 }
1624 return ret;
1625 }
1626
1627 /* do_getpeername() Must return target values and target errnos. */
1628 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1629 abi_ulong target_addrlen_addr)
1630 {
1631 socklen_t addrlen;
1632 void *addr;
1633 abi_long ret;
1634
1635 if (get_user_u32(addrlen, target_addrlen_addr))
1636 return -TARGET_EFAULT;
1637
1638 if (addrlen < 0)
1639 return -TARGET_EINVAL;
1640
1641 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1642 return -TARGET_EFAULT;
1643
1644 addr = alloca(addrlen);
1645
1646 ret = get_errno(getpeername(fd, addr, &addrlen));
1647 if (!is_error(ret)) {
1648 host_to_target_sockaddr(target_addr, addr, addrlen);
1649 if (put_user_u32(addrlen, target_addrlen_addr))
1650 ret = -TARGET_EFAULT;
1651 }
1652 return ret;
1653 }
1654
1655 /* do_getsockname() Must return target values and target errnos. */
1656 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1657 abi_ulong target_addrlen_addr)
1658 {
1659 socklen_t addrlen;
1660 void *addr;
1661 abi_long ret;
1662
1663 if (get_user_u32(addrlen, target_addrlen_addr))
1664 return -TARGET_EFAULT;
1665
1666 if (addrlen < 0)
1667 return -TARGET_EINVAL;
1668
1669 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1670 return -TARGET_EFAULT;
1671
1672 addr = alloca(addrlen);
1673
1674 ret = get_errno(getsockname(fd, addr, &addrlen));
1675 if (!is_error(ret)) {
1676 host_to_target_sockaddr(target_addr, addr, addrlen);
1677 if (put_user_u32(addrlen, target_addrlen_addr))
1678 ret = -TARGET_EFAULT;
1679 }
1680 return ret;
1681 }
1682
1683 /* do_socketpair() Must return target values and target errnos. */
1684 static abi_long do_socketpair(int domain, int type, int protocol,
1685 abi_ulong target_tab_addr)
1686 {
1687 int tab[2];
1688 abi_long ret;
1689
1690 ret = get_errno(socketpair(domain, type, protocol, tab));
1691 if (!is_error(ret)) {
1692 if (put_user_s32(tab[0], target_tab_addr)
1693 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1694 ret = -TARGET_EFAULT;
1695 }
1696 return ret;
1697 }
1698
1699 /* do_sendto() Must return target values and target errnos. */
1700 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1701 abi_ulong target_addr, socklen_t addrlen)
1702 {
1703 void *addr;
1704 void *host_msg;
1705 abi_long ret;
1706
1707 if (addrlen < 0)
1708 return -TARGET_EINVAL;
1709
1710 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1711 if (!host_msg)
1712 return -TARGET_EFAULT;
1713 if (target_addr) {
1714 addr = alloca(addrlen);
1715 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1716 if (ret) {
1717 unlock_user(host_msg, msg, 0);
1718 return ret;
1719 }
1720 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1721 } else {
1722 ret = get_errno(send(fd, host_msg, len, flags));
1723 }
1724 unlock_user(host_msg, msg, 0);
1725 return ret;
1726 }
1727
1728 /* do_recvfrom() Must return target values and target errnos. */
1729 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1730 abi_ulong target_addr,
1731 abi_ulong target_addrlen)
1732 {
1733 socklen_t addrlen;
1734 void *addr;
1735 void *host_msg;
1736 abi_long ret;
1737
1738 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1739 if (!host_msg)
1740 return -TARGET_EFAULT;
1741 if (target_addr) {
1742 if (get_user_u32(addrlen, target_addrlen)) {
1743 ret = -TARGET_EFAULT;
1744 goto fail;
1745 }
1746 if (addrlen < 0) {
1747 ret = -TARGET_EINVAL;
1748 goto fail;
1749 }
1750 addr = alloca(addrlen);
1751 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1752 } else {
1753 addr = NULL; /* To keep compiler quiet. */
1754 ret = get_errno(recv(fd, host_msg, len, flags));
1755 }
1756 if (!is_error(ret)) {
1757 if (target_addr) {
1758 host_to_target_sockaddr(target_addr, addr, addrlen);
1759 if (put_user_u32(addrlen, target_addrlen)) {
1760 ret = -TARGET_EFAULT;
1761 goto fail;
1762 }
1763 }
1764 unlock_user(host_msg, msg, len);
1765 } else {
1766 fail:
1767 unlock_user(host_msg, msg, 0);
1768 }
1769 return ret;
1770 }
1771
1772 #ifdef TARGET_NR_socketcall
1773 /* do_socketcall() Must return target values and target errnos. */
1774 static abi_long do_socketcall(int num, abi_ulong vptr)
1775 {
1776 abi_long ret;
1777 const int n = sizeof(abi_ulong);
1778
1779 switch(num) {
1780 case SOCKOP_socket:
1781 {
1782 abi_ulong domain, type, protocol;
1783
1784 if (get_user_ual(domain, vptr)
1785 || get_user_ual(type, vptr + n)
1786 || get_user_ual(protocol, vptr + 2 * n))
1787 return -TARGET_EFAULT;
1788
1789 ret = do_socket(domain, type, protocol);
1790 }
1791 break;
1792 case SOCKOP_bind:
1793 {
1794 abi_ulong sockfd;
1795 abi_ulong target_addr;
1796 socklen_t addrlen;
1797
1798 if (get_user_ual(sockfd, vptr)
1799 || get_user_ual(target_addr, vptr + n)
1800 || get_user_ual(addrlen, vptr + 2 * n))
1801 return -TARGET_EFAULT;
1802
1803 ret = do_bind(sockfd, target_addr, addrlen);
1804 }
1805 break;
1806 case SOCKOP_connect:
1807 {
1808 abi_ulong sockfd;
1809 abi_ulong target_addr;
1810 socklen_t addrlen;
1811
1812 if (get_user_ual(sockfd, vptr)
1813 || get_user_ual(target_addr, vptr + n)
1814 || get_user_ual(addrlen, vptr + 2 * n))
1815 return -TARGET_EFAULT;
1816
1817 ret = do_connect(sockfd, target_addr, addrlen);
1818 }
1819 break;
1820 case SOCKOP_listen:
1821 {
1822 abi_ulong sockfd, backlog;
1823
1824 if (get_user_ual(sockfd, vptr)
1825 || get_user_ual(backlog, vptr + n))
1826 return -TARGET_EFAULT;
1827
1828 ret = get_errno(listen(sockfd, backlog));
1829 }
1830 break;
1831 case SOCKOP_accept:
1832 {
1833 abi_ulong sockfd;
1834 abi_ulong target_addr, target_addrlen;
1835
1836 if (get_user_ual(sockfd, vptr)
1837 || get_user_ual(target_addr, vptr + n)
1838 || get_user_ual(target_addrlen, vptr + 2 * n))
1839 return -TARGET_EFAULT;
1840
1841 ret = do_accept(sockfd, target_addr, target_addrlen);
1842 }
1843 break;
1844 case SOCKOP_getsockname:
1845 {
1846 abi_ulong sockfd;
1847 abi_ulong target_addr, target_addrlen;
1848
1849 if (get_user_ual(sockfd, vptr)
1850 || get_user_ual(target_addr, vptr + n)
1851 || get_user_ual(target_addrlen, vptr + 2 * n))
1852 return -TARGET_EFAULT;
1853
1854 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1855 }
1856 break;
1857 case SOCKOP_getpeername:
1858 {
1859 abi_ulong sockfd;
1860 abi_ulong target_addr, target_addrlen;
1861
1862 if (get_user_ual(sockfd, vptr)
1863 || get_user_ual(target_addr, vptr + n)
1864 || get_user_ual(target_addrlen, vptr + 2 * n))
1865 return -TARGET_EFAULT;
1866
1867 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1868 }
1869 break;
1870 case SOCKOP_socketpair:
1871 {
1872 abi_ulong domain, type, protocol;
1873 abi_ulong tab;
1874
1875 if (get_user_ual(domain, vptr)
1876 || get_user_ual(type, vptr + n)
1877 || get_user_ual(protocol, vptr + 2 * n)
1878 || get_user_ual(tab, vptr + 3 * n))
1879 return -TARGET_EFAULT;
1880
1881 ret = do_socketpair(domain, type, protocol, tab);
1882 }
1883 break;
1884 case SOCKOP_send:
1885 {
1886 abi_ulong sockfd;
1887 abi_ulong msg;
1888 size_t len;
1889 abi_ulong flags;
1890
1891 if (get_user_ual(sockfd, vptr)
1892 || get_user_ual(msg, vptr + n)
1893 || get_user_ual(len, vptr + 2 * n)
1894 || get_user_ual(flags, vptr + 3 * n))
1895 return -TARGET_EFAULT;
1896
1897 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1898 }
1899 break;
1900 case SOCKOP_recv:
1901 {
1902 abi_ulong sockfd;
1903 abi_ulong msg;
1904 size_t len;
1905 abi_ulong flags;
1906
1907 if (get_user_ual(sockfd, vptr)
1908 || get_user_ual(msg, vptr + n)
1909 || get_user_ual(len, vptr + 2 * n)
1910 || get_user_ual(flags, vptr + 3 * n))
1911 return -TARGET_EFAULT;
1912
1913 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1914 }
1915 break;
1916 case SOCKOP_sendto:
1917 {
1918 abi_ulong sockfd;
1919 abi_ulong msg;
1920 size_t len;
1921 abi_ulong flags;
1922 abi_ulong addr;
1923 socklen_t addrlen;
1924
1925 if (get_user_ual(sockfd, vptr)
1926 || get_user_ual(msg, vptr + n)
1927 || get_user_ual(len, vptr + 2 * n)
1928 || get_user_ual(flags, vptr + 3 * n)
1929 || get_user_ual(addr, vptr + 4 * n)
1930 || get_user_ual(addrlen, vptr + 5 * n))
1931 return -TARGET_EFAULT;
1932
1933 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1934 }
1935 break;
1936 case SOCKOP_recvfrom:
1937 {
1938 abi_ulong sockfd;
1939 abi_ulong msg;
1940 size_t len;
1941 abi_ulong flags;
1942 abi_ulong addr;
1943 socklen_t addrlen;
1944
1945 if (get_user_ual(sockfd, vptr)
1946 || get_user_ual(msg, vptr + n)
1947 || get_user_ual(len, vptr + 2 * n)
1948 || get_user_ual(flags, vptr + 3 * n)
1949 || get_user_ual(addr, vptr + 4 * n)
1950 || get_user_ual(addrlen, vptr + 5 * n))
1951 return -TARGET_EFAULT;
1952
1953 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1954 }
1955 break;
1956 case SOCKOP_shutdown:
1957 {
1958 abi_ulong sockfd, how;
1959
1960 if (get_user_ual(sockfd, vptr)
1961 || get_user_ual(how, vptr + n))
1962 return -TARGET_EFAULT;
1963
1964 ret = get_errno(shutdown(sockfd, how));
1965 }
1966 break;
1967 case SOCKOP_sendmsg:
1968 case SOCKOP_recvmsg:
1969 {
1970 abi_ulong fd;
1971 abi_ulong target_msg;
1972 abi_ulong flags;
1973
1974 if (get_user_ual(fd, vptr)
1975 || get_user_ual(target_msg, vptr + n)
1976 || get_user_ual(flags, vptr + 2 * n))
1977 return -TARGET_EFAULT;
1978
1979 ret = do_sendrecvmsg(fd, target_msg, flags,
1980 (num == SOCKOP_sendmsg));
1981 }
1982 break;
1983 case SOCKOP_setsockopt:
1984 {
1985 abi_ulong sockfd;
1986 abi_ulong level;
1987 abi_ulong optname;
1988 abi_ulong optval;
1989 socklen_t optlen;
1990
1991 if (get_user_ual(sockfd, vptr)
1992 || get_user_ual(level, vptr + n)
1993 || get_user_ual(optname, vptr + 2 * n)
1994 || get_user_ual(optval, vptr + 3 * n)
1995 || get_user_ual(optlen, vptr + 4 * n))
1996 return -TARGET_EFAULT;
1997
1998 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1999 }
2000 break;
2001 case SOCKOP_getsockopt:
2002 {
2003 abi_ulong sockfd;
2004 abi_ulong level;
2005 abi_ulong optname;
2006 abi_ulong optval;
2007 socklen_t optlen;
2008
2009 if (get_user_ual(sockfd, vptr)
2010 || get_user_ual(level, vptr + n)
2011 || get_user_ual(optname, vptr + 2 * n)
2012 || get_user_ual(optval, vptr + 3 * n)
2013 || get_user_ual(optlen, vptr + 4 * n))
2014 return -TARGET_EFAULT;
2015
2016 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2017 }
2018 break;
2019 default:
2020 gemu_log("Unsupported socketcall: %d\n", num);
2021 ret = -TARGET_ENOSYS;
2022 break;
2023 }
2024 return ret;
2025 }
2026 #endif
2027
2028 #define N_SHM_REGIONS 32
2029
2030 static struct shm_region {
2031 abi_ulong start;
2032 abi_ulong size;
2033 } shm_regions[N_SHM_REGIONS];
2034
2035 struct target_ipc_perm
2036 {
2037 abi_long __key;
2038 abi_ulong uid;
2039 abi_ulong gid;
2040 abi_ulong cuid;
2041 abi_ulong cgid;
2042 unsigned short int mode;
2043 unsigned short int __pad1;
2044 unsigned short int __seq;
2045 unsigned short int __pad2;
2046 abi_ulong __unused1;
2047 abi_ulong __unused2;
2048 };
2049
2050 struct target_semid_ds
2051 {
2052 struct target_ipc_perm sem_perm;
2053 abi_ulong sem_otime;
2054 abi_ulong __unused1;
2055 abi_ulong sem_ctime;
2056 abi_ulong __unused2;
2057 abi_ulong sem_nsems;
2058 abi_ulong __unused3;
2059 abi_ulong __unused4;
2060 };
2061
2062 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2063 abi_ulong target_addr)
2064 {
2065 struct target_ipc_perm *target_ip;
2066 struct target_semid_ds *target_sd;
2067
2068 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2069 return -TARGET_EFAULT;
2070 target_ip = &(target_sd->sem_perm);
2071 host_ip->__key = tswapl(target_ip->__key);
2072 host_ip->uid = tswapl(target_ip->uid);
2073 host_ip->gid = tswapl(target_ip->gid);
2074 host_ip->cuid = tswapl(target_ip->cuid);
2075 host_ip->cgid = tswapl(target_ip->cgid);
2076 host_ip->mode = tswapl(target_ip->mode);
2077 unlock_user_struct(target_sd, target_addr, 0);
2078 return 0;
2079 }
2080
2081 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2082 struct ipc_perm *host_ip)
2083 {
2084 struct target_ipc_perm *target_ip;
2085 struct target_semid_ds *target_sd;
2086
2087 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2088 return -TARGET_EFAULT;
2089 target_ip = &(target_sd->sem_perm);
2090 target_ip->__key = tswapl(host_ip->__key);
2091 target_ip->uid = tswapl(host_ip->uid);
2092 target_ip->gid = tswapl(host_ip->gid);
2093 target_ip->cuid = tswapl(host_ip->cuid);
2094 target_ip->cgid = tswapl(host_ip->cgid);
2095 target_ip->mode = tswapl(host_ip->mode);
2096 unlock_user_struct(target_sd, target_addr, 1);
2097 return 0;
2098 }
2099
2100 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2101 abi_ulong target_addr)
2102 {
2103 struct target_semid_ds *target_sd;
2104
2105 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2106 return -TARGET_EFAULT;
2107 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2108 return -TARGET_EFAULT;
2109 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
2110 host_sd->sem_otime = tswapl(target_sd->sem_otime);
2111 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
2112 unlock_user_struct(target_sd, target_addr, 0);
2113 return 0;
2114 }
2115
2116 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2117 struct semid_ds *host_sd)
2118 {
2119 struct target_semid_ds *target_sd;
2120
2121 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2122 return -TARGET_EFAULT;
2123 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2124 return -TARGET_EFAULT;;
2125 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
2126 target_sd->sem_otime = tswapl(host_sd->sem_otime);
2127 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
2128 unlock_user_struct(target_sd, target_addr, 1);
2129 return 0;
2130 }
2131
2132 struct target_seminfo {
2133 int semmap;
2134 int semmni;
2135 int semmns;
2136 int semmnu;
2137 int semmsl;
2138 int semopm;
2139 int semume;
2140 int semusz;
2141 int semvmx;
2142 int semaem;
2143 };
2144
2145 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2146 struct seminfo *host_seminfo)
2147 {
2148 struct target_seminfo *target_seminfo;
2149 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2150 return -TARGET_EFAULT;
2151 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2152 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2153 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2154 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2155 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2156 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2157 __put_user(host_seminfo->semume, &target_seminfo->semume);
2158 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2159 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2160 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2161 unlock_user_struct(target_seminfo, target_addr, 1);
2162 return 0;
2163 }
2164
2165 union semun {
2166 int val;
2167 struct semid_ds *buf;
2168 unsigned short *array;
2169 struct seminfo *__buf;
2170 };
2171
2172 union target_semun {
2173 int val;
2174 abi_ulong buf;
2175 abi_ulong array;
2176 abi_ulong __buf;
2177 };
2178
2179 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2180 abi_ulong target_addr)
2181 {
2182 int nsems;
2183 unsigned short *array;
2184 union semun semun;
2185 struct semid_ds semid_ds;
2186 int i, ret;
2187
2188 semun.buf = &semid_ds;
2189
2190 ret = semctl(semid, 0, IPC_STAT, semun);
2191 if (ret == -1)
2192 return get_errno(ret);
2193
2194 nsems = semid_ds.sem_nsems;
2195
2196 *host_array = malloc(nsems*sizeof(unsigned short));
2197 array = lock_user(VERIFY_READ, target_addr,
2198 nsems*sizeof(unsigned short), 1);
2199 if (!array)
2200 return -TARGET_EFAULT;
2201
2202 for(i=0; i<nsems; i++) {
2203 __get_user((*host_array)[i], &array[i]);
2204 }
2205 unlock_user(array, target_addr, 0);
2206
2207 return 0;
2208 }
2209
2210 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2211 unsigned short **host_array)
2212 {
2213 int nsems;
2214 unsigned short *array;
2215 union semun semun;
2216 struct semid_ds semid_ds;
2217 int i, ret;
2218
2219 semun.buf = &semid_ds;
2220
2221 ret = semctl(semid, 0, IPC_STAT, semun);
2222 if (ret == -1)
2223 return get_errno(ret);
2224
2225 nsems = semid_ds.sem_nsems;
2226
2227 array = lock_user(VERIFY_WRITE, target_addr,
2228 nsems*sizeof(unsigned short), 0);
2229 if (!array)
2230 return -TARGET_EFAULT;
2231
2232 for(i=0; i<nsems; i++) {
2233 __put_user((*host_array)[i], &array[i]);
2234 }
2235 free(*host_array);
2236 unlock_user(array, target_addr, 1);
2237
2238 return 0;
2239 }
2240
2241 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2242 union target_semun target_su)
2243 {
2244 union semun arg;
2245 struct semid_ds dsarg;
2246 unsigned short *array = NULL;
2247 struct seminfo seminfo;
2248 abi_long ret = -TARGET_EINVAL;
2249 abi_long err;
2250 cmd &= 0xff;
2251
2252 switch( cmd ) {
2253 case GETVAL:
2254 case SETVAL:
2255 arg.val = tswapl(target_su.val);
2256 ret = get_errno(semctl(semid, semnum, cmd, arg));
2257 target_su.val = tswapl(arg.val);
2258 break;
2259 case GETALL:
2260 case SETALL:
2261 err = target_to_host_semarray(semid, &array, target_su.array);
2262 if (err)
2263 return err;
2264 arg.array = array;
2265 ret = get_errno(semctl(semid, semnum, cmd, arg));
2266 err = host_to_target_semarray(semid, target_su.array, &array);
2267 if (err)
2268 return err;
2269 break;
2270 case IPC_STAT:
2271 case IPC_SET:
2272 case SEM_STAT:
2273 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2274 if (err)
2275 return err;
2276 arg.buf = &dsarg;
2277 ret = get_errno(semctl(semid, semnum, cmd, arg));
2278 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2279 if (err)
2280 return err;
2281 break;
2282 case IPC_INFO:
2283 case SEM_INFO:
2284 arg.__buf = &seminfo;
2285 ret = get_errno(semctl(semid, semnum, cmd, arg));
2286 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2287 if (err)
2288 return err;
2289 break;
2290 case IPC_RMID:
2291 case GETPID:
2292 case GETNCNT:
2293 case GETZCNT:
2294 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2295 break;
2296 }
2297
2298 return ret;
2299 }
2300
2301 struct target_sembuf {
2302 unsigned short sem_num;
2303 short sem_op;
2304 short sem_flg;
2305 };
2306
2307 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2308 abi_ulong target_addr,
2309 unsigned nsops)
2310 {
2311 struct target_sembuf *target_sembuf;
2312 int i;
2313
2314 target_sembuf = lock_user(VERIFY_READ, target_addr,
2315 nsops*sizeof(struct target_sembuf), 1);
2316 if (!target_sembuf)
2317 return -TARGET_EFAULT;
2318
2319 for(i=0; i<nsops; i++) {
2320 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2321 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2322 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2323 }
2324
2325 unlock_user(target_sembuf, target_addr, 0);
2326
2327 return 0;
2328 }
2329
2330 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2331 {
2332 struct sembuf sops[nsops];
2333
2334 if (target_to_host_sembuf(sops, ptr, nsops))
2335 return -TARGET_EFAULT;
2336
2337 return semop(semid, sops, nsops);
2338 }
2339
2340 struct target_msqid_ds
2341 {
2342 struct target_ipc_perm msg_perm;
2343 abi_ulong msg_stime;
2344 #if TARGET_ABI_BITS == 32
2345 abi_ulong __unused1;
2346 #endif
2347 abi_ulong msg_rtime;
2348 #if TARGET_ABI_BITS == 32
2349 abi_ulong __unused2;
2350 #endif
2351 abi_ulong msg_ctime;
2352 #if TARGET_ABI_BITS == 32
2353 abi_ulong __unused3;
2354 #endif
2355 abi_ulong __msg_cbytes;
2356 abi_ulong msg_qnum;
2357 abi_ulong msg_qbytes;
2358 abi_ulong msg_lspid;
2359 abi_ulong msg_lrpid;
2360 abi_ulong __unused4;
2361 abi_ulong __unused5;
2362 };
2363
2364 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2365 abi_ulong target_addr)
2366 {
2367 struct target_msqid_ds *target_md;
2368
2369 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2370 return -TARGET_EFAULT;
2371 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2372 return -TARGET_EFAULT;
2373 host_md->msg_stime = tswapl(target_md->msg_stime);
2374 host_md->msg_rtime = tswapl(target_md->msg_rtime);
2375 host_md->msg_ctime = tswapl(target_md->msg_ctime);
2376 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
2377 host_md->msg_qnum = tswapl(target_md->msg_qnum);
2378 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
2379 host_md->msg_lspid = tswapl(target_md->msg_lspid);
2380 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
2381 unlock_user_struct(target_md, target_addr, 0);
2382 return 0;
2383 }
2384
2385 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2386 struct msqid_ds *host_md)
2387 {
2388 struct target_msqid_ds *target_md;
2389
2390 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2391 return -TARGET_EFAULT;
2392 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2393 return -TARGET_EFAULT;
2394 target_md->msg_stime = tswapl(host_md->msg_stime);
2395 target_md->msg_rtime = tswapl(host_md->msg_rtime);
2396 target_md->msg_ctime = tswapl(host_md->msg_ctime);
2397 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
2398 target_md->msg_qnum = tswapl(host_md->msg_qnum);
2399 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
2400 target_md->msg_lspid = tswapl(host_md->msg_lspid);
2401 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
2402 unlock_user_struct(target_md, target_addr, 1);
2403 return 0;
2404 }
2405
2406 struct target_msginfo {
2407 int msgpool;
2408 int msgmap;
2409 int msgmax;
2410 int msgmnb;
2411 int msgmni;
2412 int msgssz;
2413 int msgtql;
2414 unsigned short int msgseg;
2415 };
2416
2417 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2418 struct msginfo *host_msginfo)
2419 {
2420 struct target_msginfo *target_msginfo;
2421 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2422 return -TARGET_EFAULT;
2423 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2424 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2425 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2426 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2427 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2428 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2429 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2430 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2431 unlock_user_struct(target_msginfo, target_addr, 1);
2432 return 0;
2433 }
2434
2435 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2436 {
2437 struct msqid_ds dsarg;
2438 struct msginfo msginfo;
2439 abi_long ret = -TARGET_EINVAL;
2440
2441 cmd &= 0xff;
2442
2443 switch (cmd) {
2444 case IPC_STAT:
2445 case IPC_SET:
2446 case MSG_STAT:
2447 if (target_to_host_msqid_ds(&dsarg,ptr))
2448 return -TARGET_EFAULT;
2449 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2450 if (host_to_target_msqid_ds(ptr,&dsarg))
2451 return -TARGET_EFAULT;
2452 break;
2453 case IPC_RMID:
2454 ret = get_errno(msgctl(msgid, cmd, NULL));
2455 break;
2456 case IPC_INFO:
2457 case MSG_INFO:
2458 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2459 if (host_to_target_msginfo(ptr, &msginfo))
2460 return -TARGET_EFAULT;
2461 break;
2462 }
2463
2464 return ret;
2465 }
2466
2467 struct target_msgbuf {
2468 abi_long mtype;
2469 char mtext[1];
2470 };
2471
2472 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2473 unsigned int msgsz, int msgflg)
2474 {
2475 struct target_msgbuf *target_mb;
2476 struct msgbuf *host_mb;
2477 abi_long ret = 0;
2478
2479 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2480 return -TARGET_EFAULT;
2481 host_mb = malloc(msgsz+sizeof(long));
2482 host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
2483 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2484 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2485 free(host_mb);
2486 unlock_user_struct(target_mb, msgp, 0);
2487
2488 return ret;
2489 }
2490
2491 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2492 unsigned int msgsz, abi_long msgtyp,
2493 int msgflg)
2494 {
2495 struct target_msgbuf *target_mb;
2496 char *target_mtext;
2497 struct msgbuf *host_mb;
2498 abi_long ret = 0;
2499
2500 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2501 return -TARGET_EFAULT;
2502
2503 host_mb = malloc(msgsz+sizeof(long));
2504 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
2505
2506 if (ret > 0) {
2507 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2508 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2509 if (!target_mtext) {
2510 ret = -TARGET_EFAULT;
2511 goto end;
2512 }
2513 memcpy(target_mb->mtext, host_mb->mtext, ret);
2514 unlock_user(target_mtext, target_mtext_addr, ret);
2515 }
2516
2517 target_mb->mtype = tswapl(host_mb->mtype);
2518 free(host_mb);
2519
2520 end:
2521 if (target_mb)
2522 unlock_user_struct(target_mb, msgp, 1);
2523 return ret;
2524 }
2525
2526 struct target_shmid_ds
2527 {
2528 struct target_ipc_perm shm_perm;
2529 abi_ulong shm_segsz;
2530 abi_ulong shm_atime;
2531 #if TARGET_ABI_BITS == 32
2532 abi_ulong __unused1;
2533 #endif
2534 abi_ulong shm_dtime;
2535 #if TARGET_ABI_BITS == 32
2536 abi_ulong __unused2;
2537 #endif
2538 abi_ulong shm_ctime;
2539 #if TARGET_ABI_BITS == 32
2540 abi_ulong __unused3;
2541 #endif
2542 int shm_cpid;
2543 int shm_lpid;
2544 abi_ulong shm_nattch;
2545 unsigned long int __unused4;
2546 unsigned long int __unused5;
2547 };
2548
2549 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2550 abi_ulong target_addr)
2551 {
2552 struct target_shmid_ds *target_sd;
2553
2554 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2555 return -TARGET_EFAULT;
2556 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2557 return -TARGET_EFAULT;
2558 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2559 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2560 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2561 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2562 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2563 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2564 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2565 unlock_user_struct(target_sd, target_addr, 0);
2566 return 0;
2567 }
2568
2569 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2570 struct shmid_ds *host_sd)
2571 {
2572 struct target_shmid_ds *target_sd;
2573
2574 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2575 return -TARGET_EFAULT;
2576 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2577 return -TARGET_EFAULT;
2578 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2579 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2580 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2581 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2582 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2583 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2584 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2585 unlock_user_struct(target_sd, target_addr, 1);
2586 return 0;
2587 }
2588
2589 struct target_shminfo {
2590 abi_ulong shmmax;
2591 abi_ulong shmmin;
2592 abi_ulong shmmni;
2593 abi_ulong shmseg;
2594 abi_ulong shmall;
2595 };
2596
2597 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2598 struct shminfo *host_shminfo)
2599 {
2600 struct target_shminfo *target_shminfo;
2601 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2602 return -TARGET_EFAULT;
2603 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2604 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2605 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2606 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2607 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2608 unlock_user_struct(target_shminfo, target_addr, 1);
2609 return 0;
2610 }
2611
2612 struct target_shm_info {
2613 int used_ids;
2614 abi_ulong shm_tot;
2615 abi_ulong shm_rss;
2616 abi_ulong shm_swp;
2617 abi_ulong swap_attempts;
2618 abi_ulong swap_successes;
2619 };
2620
2621 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2622 struct shm_info *host_shm_info)
2623 {
2624 struct target_shm_info *target_shm_info;
2625 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2626 return -TARGET_EFAULT;
2627 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2628 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2629 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2630 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2631 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2632 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2633 unlock_user_struct(target_shm_info, target_addr, 1);
2634 return 0;
2635 }
2636
2637 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2638 {
2639 struct shmid_ds dsarg;
2640 struct shminfo shminfo;
2641 struct shm_info shm_info;
2642 abi_long ret = -TARGET_EINVAL;
2643
2644 cmd &= 0xff;
2645
2646 switch(cmd) {
2647 case IPC_STAT:
2648 case IPC_SET:
2649 case SHM_STAT:
2650 if (target_to_host_shmid_ds(&dsarg, buf))
2651 return -TARGET_EFAULT;
2652 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2653 if (host_to_target_shmid_ds(buf, &dsarg))
2654 return -TARGET_EFAULT;
2655 break;
2656 case IPC_INFO:
2657 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2658 if (host_to_target_shminfo(buf, &shminfo))
2659 return -TARGET_EFAULT;
2660 break;
2661 case SHM_INFO:
2662 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2663 if (host_to_target_shm_info(buf, &shm_info))
2664 return -TARGET_EFAULT;
2665 break;
2666 case IPC_RMID:
2667 case SHM_LOCK:
2668 case SHM_UNLOCK:
2669 ret = get_errno(shmctl(shmid, cmd, NULL));
2670 break;
2671 }
2672
2673 return ret;
2674 }
2675
2676 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2677 {
2678 abi_long raddr;
2679 void *host_raddr;
2680 struct shmid_ds shm_info;
2681 int i,ret;
2682
2683 /* find out the length of the shared memory segment */
2684 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2685 if (is_error(ret)) {
2686 /* can't get length, bail out */
2687 return ret;
2688 }
2689
2690 mmap_lock();
2691
2692 if (shmaddr)
2693 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2694 else {
2695 abi_ulong mmap_start;
2696
2697 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2698
2699 if (mmap_start == -1) {
2700 errno = ENOMEM;
2701 host_raddr = (void *)-1;
2702 } else
2703 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2704 }
2705
2706 if (host_raddr == (void *)-1) {
2707 mmap_unlock();
2708 return get_errno((long)host_raddr);
2709 }
2710 raddr=h2g((unsigned long)host_raddr);
2711
2712 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2713 PAGE_VALID | PAGE_READ |
2714 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2715
2716 for (i = 0; i < N_SHM_REGIONS; i++) {
2717 if (shm_regions[i].start == 0) {
2718 shm_regions[i].start = raddr;
2719 shm_regions[i].size = shm_info.shm_segsz;
2720 break;
2721 }
2722 }
2723
2724 mmap_unlock();
2725 return raddr;
2726
2727 }
2728
2729 static inline abi_long do_shmdt(abi_ulong shmaddr)
2730 {
2731 int i;
2732
2733 for (i = 0; i < N_SHM_REGIONS; ++i) {
2734 if (shm_regions[i].start == shmaddr) {
2735 shm_regions[i].start = 0;
2736 page_set_flags(shmaddr, shm_regions[i].size, 0);
2737 break;
2738 }
2739 }
2740
2741 return get_errno(shmdt(g2h(shmaddr)));
2742 }
2743
2744 #ifdef TARGET_NR_ipc
2745 /* ??? This only works with linear mappings. */
2746 /* do_ipc() must return target values and target errnos. */
2747 static abi_long do_ipc(unsigned int call, int first,
2748 int second, int third,
2749 abi_long ptr, abi_long fifth)
2750 {
2751 int version;
2752 abi_long ret = 0;
2753
2754 version = call >> 16;
2755 call &= 0xffff;
2756
2757 switch (call) {
2758 case IPCOP_semop:
2759 ret = do_semop(first, ptr, second);
2760 break;
2761
2762 case IPCOP_semget:
2763 ret = get_errno(semget(first, second, third));
2764 break;
2765
2766 case IPCOP_semctl:
2767 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
2768 break;
2769
2770 case IPCOP_msgget:
2771 ret = get_errno(msgget(first, second));
2772 break;
2773
2774 case IPCOP_msgsnd:
2775 ret = do_msgsnd(first, ptr, second, third);
2776 break;
2777
2778 case IPCOP_msgctl:
2779 ret = do_msgctl(first, second, ptr);
2780 break;
2781
2782 case IPCOP_msgrcv:
2783 switch (version) {
2784 case 0:
2785 {
2786 struct target_ipc_kludge {
2787 abi_long msgp;
2788 abi_long msgtyp;
2789 } *tmp;
2790
2791 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
2792 ret = -TARGET_EFAULT;
2793 break;
2794 }
2795
2796 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
2797
2798 unlock_user_struct(tmp, ptr, 0);
2799 break;
2800 }
2801 default:
2802 ret = do_msgrcv(first, ptr, second, fifth, third);
2803 }
2804 break;
2805
2806 case IPCOP_shmat:
2807 switch (version) {
2808 default:
2809 {
2810 abi_ulong raddr;
2811 raddr = do_shmat(first, ptr, second);
2812 if (is_error(raddr))
2813 return get_errno(raddr);
2814 if (put_user_ual(raddr, third))
2815 return -TARGET_EFAULT;
2816 break;
2817 }
2818 case 1:
2819 ret = -TARGET_EINVAL;
2820 break;
2821 }
2822 break;
2823 case IPCOP_shmdt:
2824 ret = do_shmdt(ptr);
2825 break;
2826
2827 case IPCOP_shmget:
2828 /* IPC_* flag values are the same on all linux platforms */
2829 ret = get_errno(shmget(first, second, third));
2830 break;
2831
2832 /* IPC_* and SHM_* command values are the same on all linux platforms */
2833 case IPCOP_shmctl:
2834 ret = do_shmctl(first, second, third);
2835 break;
2836 default:
2837 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2838 ret = -TARGET_ENOSYS;
2839 break;
2840 }
2841 return ret;
2842 }
2843 #endif
2844
2845 /* kernel structure types definitions */
2846 #define IFNAMSIZ 16
2847
2848 #define STRUCT(name, ...) STRUCT_ ## name,
2849 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2850 enum {
2851 #include "syscall_types.h"
2852 };
2853 #undef STRUCT
2854 #undef STRUCT_SPECIAL
2855
2856 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
2857 #define STRUCT_SPECIAL(name)
2858 #include "syscall_types.h"
2859 #undef STRUCT
2860 #undef STRUCT_SPECIAL
2861
2862 typedef struct IOCTLEntry {
2863 unsigned int target_cmd;
2864 unsigned int host_cmd;
2865 const char *name;
2866 int access;
2867 const argtype arg_type[5];
2868 } IOCTLEntry;
2869
2870 #define IOC_R 0x0001
2871 #define IOC_W 0x0002
2872 #define IOC_RW (IOC_R | IOC_W)
2873
2874 #define MAX_STRUCT_SIZE 4096
2875
2876 static IOCTLEntry ioctl_entries[] = {
2877 #define IOCTL(cmd, access, ...) \
2878 { TARGET_ ## cmd, cmd, #cmd, access, { __VA_ARGS__ } },
2879 #include "ioctls.h"
2880 { 0, 0, },
2881 };
2882
2883 /* ??? Implement proper locking for ioctls. */
2884 /* do_ioctl() Must return target values and target errnos. */
2885 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
2886 {
2887 const IOCTLEntry *ie;
2888 const argtype *arg_type;
2889 abi_long ret;
2890 uint8_t buf_temp[MAX_STRUCT_SIZE];
2891 int target_size;
2892 void *argptr;
2893
2894 ie = ioctl_entries;
2895 for(;;) {
2896 if (ie->target_cmd == 0) {
2897 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
2898 return -TARGET_ENOSYS;
2899 }
2900 if (ie->target_cmd == cmd)
2901 break;
2902 ie++;
2903 }
2904 arg_type = ie->arg_type;
2905 #if defined(DEBUG)
2906 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
2907 #endif
2908 switch(arg_type[0]) {
2909 case TYPE_NULL:
2910 /* no argument */
2911 ret = get_errno(ioctl(fd, ie->host_cmd));
2912 break;
2913 case TYPE_PTRVOID:
2914 case TYPE_INT:
2915 /* int argment */
2916 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
2917 break;
2918 case TYPE_PTR:
2919 arg_type++;
2920 target_size = thunk_type_size(arg_type, 0);
2921 switch(ie->access) {
2922 case IOC_R:
2923 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2924 if (!is_error(ret)) {
2925 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2926 if (!argptr)
2927 return -TARGET_EFAULT;
2928 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2929 unlock_user(argptr, arg, target_size);
2930 }
2931 break;
2932 case IOC_W:
2933 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2934 if (!argptr)
2935 return -TARGET_EFAULT;
2936 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2937 unlock_user(argptr, arg, 0);
2938 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2939 break;
2940 default:
2941 case IOC_RW:
2942 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2943 if (!argptr)
2944 return -TARGET_EFAULT;
2945 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2946 unlock_user(argptr, arg, 0);
2947 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2948 if (!is_error(ret)) {
2949 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2950 if (!argptr)
2951 return -TARGET_EFAULT;
2952 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2953 unlock_user(argptr, arg, target_size);
2954 }
2955 break;
2956 }
2957 break;
2958 default:
2959 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
2960 (long)cmd, arg_type[0]);
2961 ret = -TARGET_ENOSYS;
2962 break;
2963 }
2964 return ret;
2965 }
2966
2967 static const bitmask_transtbl iflag_tbl[] = {
2968 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
2969 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
2970 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
2971 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
2972 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
2973 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
2974 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
2975 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
2976 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
2977 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
2978 { TARGET_IXON, TARGET_IXON, IXON, IXON },
2979 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
2980 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
2981 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
2982 { 0, 0, 0, 0 }
2983 };
2984
2985 static const bitmask_transtbl oflag_tbl[] = {
2986 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
2987 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
2988 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
2989 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
2990 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
2991 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
2992 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
2993 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
2994 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
2995 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
2996 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
2997 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
2998 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
2999 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3000 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3001 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3002 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3003 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3004 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3005 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3006 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3007 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3008 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3009 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3010 { 0, 0, 0, 0 }
3011 };
3012
3013 static const bitmask_transtbl cflag_tbl[] = {
3014 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3015 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3016 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3017 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3018 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3019 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3020 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3021 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3022 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3023 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3024 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3025 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3026 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3027 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3028 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3029 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3030 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3031 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3032 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3033 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3034 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3035 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3036 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3037 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3038 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3039 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3040 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3041 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3042 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3043 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3044 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3045 { 0, 0, 0, 0 }
3046 };
3047
3048 static const bitmask_transtbl lflag_tbl[] = {
3049 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3050 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3051 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3052 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3053 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3054 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3055 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3056 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3057 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3058 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3059 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3060 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3061 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3062 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3063 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3064 { 0, 0, 0, 0 }
3065 };
3066
3067 static void target_to_host_termios (void *dst, const void *src)
3068 {
3069 struct host_termios *host = dst;
3070 const struct target_termios *target = src;
3071
3072 host->c_iflag =
3073 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3074 host->c_oflag =
3075 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3076 host->c_cflag =
3077 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3078 host->c_lflag =
3079 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3080 host->c_line = target->c_line;
3081
3082 memset(host->c_cc, 0, sizeof(host->c_cc));
3083 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3084 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3085 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3086 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3087 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3088 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3089 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3090 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3091 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3092 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3093 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3094 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3095 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3096 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3097 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3098 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3099 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3100 }
3101
3102 static void host_to_target_termios (void *dst, const void *src)
3103 {
3104 struct target_termios *target = dst;
3105 const struct host_termios *host = src;
3106
3107 target->c_iflag =
3108 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3109 target->c_oflag =
3110 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3111 target->c_cflag =
3112 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3113 target->c_lflag =
3114 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3115 target->c_line = host->c_line;
3116
3117 memset(target->c_cc, 0, sizeof(target->c_cc));
3118 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3119 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3120 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3121 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3122 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3123 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3124 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3125 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3126 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3127 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3128 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3129 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3130 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3131 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3132 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3133 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3134 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3135 }
3136
3137 static const StructEntry struct_termios_def = {
3138 .convert = { host_to_target_termios, target_to_host_termios },
3139 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3140 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3141 };
3142
3143 static bitmask_transtbl mmap_flags_tbl[] = {
3144 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3145 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3146 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3147 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3148 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3149 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3150 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3151 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3152 { 0, 0, 0, 0 }
3153 };
3154
3155 #if defined(TARGET_I386)
3156
3157 /* NOTE: there is really one LDT for all the threads */
3158 static uint8_t *ldt_table;
3159
3160 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3161 {
3162 int size;
3163 void *p;
3164
3165 if (!ldt_table)
3166 return 0;
3167 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3168 if (size > bytecount)
3169 size = bytecount;
3170 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3171 if (!p)
3172 return -TARGET_EFAULT;
3173 /* ??? Should this by byteswapped? */
3174 memcpy(p, ldt_table, size);
3175 unlock_user(p, ptr, size);
3176 return size;
3177 }
3178
3179 /* XXX: add locking support */
3180 static abi_long write_ldt(CPUX86State *env,
3181 abi_ulong ptr, unsigned long bytecount, int oldmode)
3182 {
3183 struct target_modify_ldt_ldt_s ldt_info;
3184 struct target_modify_ldt_ldt_s *target_ldt_info;
3185 int seg_32bit, contents, read_exec_only, limit_in_pages;
3186 int seg_not_present, useable, lm;
3187 uint32_t *lp, entry_1, entry_2;
3188
3189 if (bytecount != sizeof(ldt_info))
3190 return -TARGET_EINVAL;
3191 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3192 return -TARGET_EFAULT;
3193 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3194 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3195 ldt_info.limit = tswap32(target_ldt_info->limit);
3196 ldt_info.flags = tswap32(target_ldt_info->flags);
3197 unlock_user_struct(target_ldt_info, ptr, 0);
3198
3199 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3200 return -TARGET_EINVAL;
3201 seg_32bit = ldt_info.flags & 1;
3202 contents = (ldt_info.flags >> 1) & 3;
3203 read_exec_only = (ldt_info.flags >> 3) & 1;
3204 limit_in_pages = (ldt_info.flags >> 4) & 1;
3205 seg_not_present = (ldt_info.flags >> 5) & 1;
3206 useable = (ldt_info.flags >> 6) & 1;
3207 #ifdef TARGET_ABI32
3208 lm = 0;
3209 #else
3210 lm = (ldt_info.flags >> 7) & 1;
3211 #endif
3212 if (contents == 3) {
3213 if (oldmode)
3214 return -TARGET_EINVAL;
3215 if (seg_not_present == 0)
3216 return -TARGET_EINVAL;
3217 }
3218 /* allocate the LDT */
3219 if (!ldt_table) {
3220 env->ldt.base = target_mmap(0,
3221 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3222 PROT_READ|PROT_WRITE,
3223 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3224 if (env->ldt.base == -1)
3225 return -TARGET_ENOMEM;
3226 memset(g2h(env->ldt.base), 0,
3227 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3228 env->ldt.limit = 0xffff;
3229 ldt_table = g2h(env->ldt.base);
3230 }
3231
3232 /* NOTE: same code as Linux kernel */
3233 /* Allow LDTs to be cleared by the user. */
3234 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3235 if (oldmode ||
3236 (contents == 0 &&
3237 read_exec_only == 1 &&
3238 seg_32bit == 0 &&
3239 limit_in_pages == 0 &&
3240 seg_not_present == 1 &&
3241 useable == 0 )) {
3242 entry_1 = 0;
3243 entry_2 = 0;
3244 goto install;
3245 }
3246 }
3247
3248 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3249 (ldt_info.limit & 0x0ffff);
3250 entry_2 = (ldt_info.base_addr & 0xff000000) |
3251 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3252 (ldt_info.limit & 0xf0000) |
3253 ((read_exec_only ^ 1) << 9) |
3254 (contents << 10) |
3255 ((seg_not_present ^ 1) << 15) |
3256 (seg_32bit << 22) |
3257 (limit_in_pages << 23) |
3258 (lm << 21) |
3259 0x7000;
3260 if (!oldmode)
3261 entry_2 |= (useable << 20);
3262
3263 /* Install the new entry ... */
3264 install:
3265 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3266 lp[0] = tswap32(entry_1);
3267 lp[1] = tswap32(entry_2);
3268 return 0;
3269 }
3270
3271 /* specific and weird i386 syscalls */
3272 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3273 unsigned long bytecount)
3274 {
3275 abi_long ret;
3276
3277 switch (func) {
3278 case 0:
3279 ret = read_ldt(ptr, bytecount);
3280 break;
3281 case 1:
3282 ret = write_ldt(env, ptr, bytecount, 1);
3283 break;
3284 case 0x11:
3285 ret = write_ldt(env, ptr, bytecount, 0);
3286 break;
3287 default:
3288 ret = -TARGET_ENOSYS;
3289 break;
3290 }
3291 return ret;
3292 }
3293
3294 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3295 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3296 {
3297 uint64_t *gdt_table = g2h(env->gdt.base);
3298 struct target_modify_ldt_ldt_s ldt_info;
3299 struct target_modify_ldt_ldt_s *target_ldt_info;
3300 int seg_32bit, contents, read_exec_only, limit_in_pages;
3301 int seg_not_present, useable, lm;
3302 uint32_t *lp, entry_1, entry_2;
3303 int i;
3304
3305 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3306 if (!target_ldt_info)
3307 return -TARGET_EFAULT;
3308 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3309 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3310 ldt_info.limit = tswap32(target_ldt_info->limit);
3311 ldt_info.flags = tswap32(target_ldt_info->flags);
3312 if (ldt_info.entry_number == -1) {
3313 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3314 if (gdt_table[i] == 0) {
3315 ldt_info.entry_number = i;
3316 target_ldt_info->entry_number = tswap32(i);
3317 break;
3318 }
3319 }
3320 }
3321 unlock_user_struct(target_ldt_info, ptr, 1);
3322
3323 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3324 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3325 return -TARGET_EINVAL;
3326 seg_32bit = ldt_info.flags & 1;
3327 contents = (ldt_info.flags >> 1) & 3;
3328 read_exec_only = (ldt_info.flags >> 3) & 1;
3329 limit_in_pages = (ldt_info.flags >> 4) & 1;
3330 seg_not_present = (ldt_info.flags >> 5) & 1;
3331 useable = (ldt_info.flags >> 6) & 1;
3332 #ifdef TARGET_ABI32
3333 lm = 0;
3334 #else
3335 lm = (ldt_info.flags >> 7) & 1;
3336 #endif
3337
3338 if (contents == 3) {
3339 if (seg_not_present == 0)
3340 return -TARGET_EINVAL;
3341 }
3342
3343 /* NOTE: same code as Linux kernel */
3344 /* Allow LDTs to be cleared by the user. */
3345 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3346 if ((contents == 0 &&
3347 read_exec_only == 1 &&
3348 seg_32bit == 0 &&
3349 limit_in_pages == 0 &&
3350 seg_not_present == 1 &&
3351 useable == 0 )) {
3352 entry_1 = 0;
3353 entry_2 = 0;
3354 goto install;
3355 }
3356 }
3357
3358 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3359 (ldt_info.limit & 0x0ffff);
3360 entry_2 = (ldt_info.base_addr & 0xff000000) |
3361 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3362 (ldt_info.limit & 0xf0000) |
3363 ((read_exec_only ^ 1) << 9) |
3364 (contents << 10) |
3365 ((seg_not_present ^ 1) << 15) |
3366 (seg_32bit << 22) |
3367 (limit_in_pages << 23) |
3368 (useable << 20) |
3369 (lm << 21) |
3370 0x7000;
3371
3372 /* Install the new entry ... */
3373 install:
3374 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3375 lp[0] = tswap32(entry_1);
3376 lp[1] = tswap32(entry_2);
3377 return 0;
3378 }
3379
3380 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3381 {
3382 struct target_modify_ldt_ldt_s *target_ldt_info;
3383 uint64_t *gdt_table = g2h(env->gdt.base);
3384 uint32_t base_addr, limit, flags;
3385 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3386 int seg_not_present, useable, lm;
3387 uint32_t *lp, entry_1, entry_2;
3388
3389 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3390 if (!target_ldt_info)
3391 return -TARGET_EFAULT;
3392 idx = tswap32(target_ldt_info->entry_number);
3393 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3394 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3395 unlock_user_struct(target_ldt_info, ptr, 1);
3396 return -TARGET_EINVAL;
3397 }
3398 lp = (uint32_t *)(gdt_table + idx);
3399 entry_1 = tswap32(lp[0]);
3400 entry_2 = tswap32(lp[1]);
3401
3402 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3403 contents = (entry_2 >> 10) & 3;
3404 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3405 seg_32bit = (entry_2 >> 22) & 1;
3406 limit_in_pages = (entry_2 >> 23) & 1;
3407 useable = (entry_2 >> 20) & 1;
3408 #ifdef TARGET_ABI32
3409 lm = 0;
3410 #else
3411 lm = (entry_2 >> 21) & 1;
3412 #endif
3413 flags = (seg_32bit << 0) | (contents << 1) |
3414 (read_exec_only << 3) | (limit_in_pages << 4) |
3415 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3416 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3417 base_addr = (entry_1 >> 16) |
3418 (entry_2 & 0xff000000) |
3419 ((entry_2 & 0xff) << 16);
3420 target_ldt_info->base_addr = tswapl(base_addr);
3421 target_ldt_info->limit = tswap32(limit);
3422 target_ldt_info->flags = tswap32(flags);
3423 unlock_user_struct(target_ldt_info, ptr, 1);
3424 return 0;
3425 }
3426 #endif /* TARGET_I386 && TARGET_ABI32 */
3427
3428 #ifndef TARGET_ABI32
3429 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3430 {
3431 abi_long ret;
3432 abi_ulong val;
3433 int idx;
3434
3435 switch(code) {
3436 case TARGET_ARCH_SET_GS:
3437 case TARGET_ARCH_SET_FS:
3438 if (code == TARGET_ARCH_SET_GS)
3439 idx = R_GS;
3440 else
3441 idx = R_FS;
3442 cpu_x86_load_seg(env, idx, 0);
3443 env->segs[idx].base = addr;
3444 break;
3445 case TARGET_ARCH_GET_GS:
3446 case TARGET_ARCH_GET_FS:
3447 if (code == TARGET_ARCH_GET_GS)
3448 idx = R_GS;
3449 else
3450 idx = R_FS;
3451 val = env->segs[idx].base;
3452 if (put_user(val, addr, abi_ulong))
3453 return -TARGET_EFAULT;
3454 break;
3455 default:
3456 ret = -TARGET_EINVAL;
3457 break;
3458 }
3459 return 0;
3460 }
3461 #endif
3462
3463 #endif /* defined(TARGET_I386) */
3464
3465 #if defined(CONFIG_USE_NPTL)
3466
3467 #define NEW_STACK_SIZE PTHREAD_STACK_MIN
3468
3469 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3470 typedef struct {
3471 CPUState *env;
3472 pthread_mutex_t mutex;
3473 pthread_cond_t cond;
3474 pthread_t thread;
3475 uint32_t tid;
3476 abi_ulong child_tidptr;
3477 abi_ulong parent_tidptr;
3478 sigset_t sigmask;
3479 } new_thread_info;
3480
3481 static void *clone_func(void *arg)
3482 {
3483 new_thread_info *info = arg;
3484 CPUState *env;
3485 TaskState *ts;
3486
3487 env = info->env;
3488 thread_env = env;
3489 ts = (TaskState *)thread_env->opaque;
3490 info->tid = gettid();
3491 env->host_tid = info->tid;
3492 task_settid(ts);
3493 if (info->child_tidptr)
3494 put_user_u32(info->tid, info->child_tidptr);
3495 if (info->parent_tidptr)
3496 put_user_u32(info->tid, info->parent_tidptr);
3497 /* Enable signals. */
3498 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3499 /* Signal to the parent that we're ready. */
3500 pthread_mutex_lock(&info->mutex);
3501 pthread_cond_broadcast(&info->cond);
3502 pthread_mutex_unlock(&info->mutex);
3503 /* Wait until the parent has finshed initializing the tls state. */
3504 pthread_mutex_lock(&clone_lock);
3505 pthread_mutex_unlock(&clone_lock);
3506 cpu_loop(env);
3507 /* never exits */
3508 return NULL;
3509 }
3510 #else
3511 /* this stack is the equivalent of the kernel stack associated with a
3512 thread/process */
3513 #define NEW_STACK_SIZE 8192
3514
3515 static int clone_func(void *arg)
3516 {
3517 CPUState *env = arg;
3518 cpu_loop(env);
3519 /* never exits */
3520 return 0;
3521 }
3522 #endif
3523
3524 /* do_fork() Must return host values and target errnos (unlike most
3525 do_*() functions). */
3526 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3527 abi_ulong parent_tidptr, target_ulong newtls,
3528 abi_ulong child_tidptr)
3529 {
3530 int ret;
3531 TaskState *ts;
3532 uint8_t *new_stack;
3533 CPUState *new_env;
3534 #if defined(CONFIG_USE_NPTL)
3535 unsigned int nptl_flags;
3536 sigset_t sigmask;
3537 #endif
3538
3539 /* Emulate vfork() with fork() */
3540 if (flags & CLONE_VFORK)
3541 flags &= ~(CLONE_VFORK | CLONE_VM);
3542
3543 if (flags & CLONE_VM) {
3544 TaskState *parent_ts = (TaskState *)env->opaque;
3545 #if defined(CONFIG_USE_NPTL)
3546 new_thread_info info;
3547 pthread_attr_t attr;
3548 #endif
3549 ts = qemu_mallocz(sizeof(TaskState) + NEW_STACK_SIZE);
3550 init_task_state(ts);
3551 new_stack = ts->stack;
3552 /* we create a new CPU instance. */
3553 new_env = cpu_copy(env);
3554 /* Init regs that differ from the parent. */
3555 cpu_clone_regs(new_env, newsp);
3556 new_env->opaque = ts;
3557 ts->bprm = parent_ts->bprm;
3558 ts->info = parent_ts->info;
3559 #if defined(CONFIG_USE_NPTL)
3560 nptl_flags = flags;
3561 flags &= ~CLONE_NPTL_FLAGS2;
3562
3563 if (nptl_flags & CLONE_CHILD_CLEARTID) {
3564 ts->child_tidptr = child_tidptr;
3565 }
3566
3567 if (nptl_flags & CLONE_SETTLS)
3568 cpu_set_tls (new_env, newtls);
3569
3570 /* Grab a mutex so that thread setup appears atomic. */
3571 pthread_mutex_lock(&clone_lock);
3572
3573 memset(&info, 0, sizeof(info));
3574 pthread_mutex_init(&info.mutex, NULL);
3575 pthread_mutex_lock(&info.mutex);
3576 pthread_cond_init(&info.cond, NULL);
3577 info.env = new_env;
3578 if (nptl_flags & CLONE_CHILD_SETTID)
3579 info.child_tidptr = child_tidptr;
3580 if (nptl_flags & CLONE_PARENT_SETTID)
3581 info.parent_tidptr = parent_tidptr;
3582
3583 ret = pthread_attr_init(&attr);
3584 ret = pthread_attr_setstack(&attr, new_stack, NEW_STACK_SIZE);
3585 /* It is not safe to deliver signals until the child has finished
3586 initializing, so temporarily block all signals. */
3587 sigfillset(&sigmask);
3588 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
3589
3590 ret = pthread_create(&info.thread, &attr, clone_func, &info);
3591 /* TODO: Free new CPU state if thread creation failed. */
3592
3593 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
3594 pthread_attr_destroy(&attr);
3595 if (ret == 0) {
3596 /* Wait for the child to initialize. */
3597 pthread_cond_wait(&info.cond, &info.mutex);
3598 ret = info.tid;
3599 if (flags & CLONE_PARENT_SETTID)
3600 put_user_u32(ret, parent_tidptr);
3601 } else {
3602 ret = -1;
3603 }
3604 pthread_mutex_unlock(&info.mutex);
3605 pthread_cond_destroy(&info.cond);
3606 pthread_mutex_destroy(&info.mutex);
3607 pthread_mutex_unlock(&clone_lock);
3608 #else
3609 if (flags & CLONE_NPTL_FLAGS2)
3610 return -EINVAL;
3611 /* This is probably going to die very quickly, but do it anyway. */
3612 #ifdef __ia64__
3613 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3614 #else
3615 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3616 #endif
3617 #endif
3618 } else {
3619 /* if no CLONE_VM, we consider it is a fork */
3620 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
3621 return -EINVAL;
3622 fork_start();
3623 ret = fork();
3624 if (ret == 0) {
3625 /* Child Process. */
3626 cpu_clone_regs(env, newsp);
3627 fork_end(1);
3628 #if defined(CONFIG_USE_NPTL)
3629 /* There is a race condition here. The parent process could
3630 theoretically read the TID in the child process before the child
3631 tid is set. This would require using either ptrace
3632 (not implemented) or having *_tidptr to point at a shared memory
3633 mapping. We can't repeat the spinlock hack used above because
3634 the child process gets its own copy of the lock. */
3635 if (flags & CLONE_CHILD_SETTID)
3636 put_user_u32(gettid(), child_tidptr);
3637 if (flags & CLONE_PARENT_SETTID)
3638 put_user_u32(gettid(), parent_tidptr);
3639 ts = (TaskState *)env->opaque;
3640 if (flags & CLONE_SETTLS)
3641 cpu_set_tls (env, newtls);
3642 if (flags & CLONE_CHILD_CLEARTID)
3643 ts->child_tidptr = child_tidptr;
3644 #endif
3645 } else {
3646 fork_end(0);
3647 }
3648 }
3649 return ret;
3650 }
3651
3652 /* warning : doesn't handle linux specific flags... */
3653 static int target_to_host_fcntl_cmd(int cmd)
3654 {
3655 switch(cmd) {
3656 case TARGET_F_DUPFD:
3657 case TARGET_F_GETFD:
3658 case TARGET_F_SETFD:
3659 case TARGET_F_GETFL:
3660 case TARGET_F_SETFL:
3661 return cmd;
3662 case TARGET_F_GETLK:
3663 return F_GETLK;
3664 case TARGET_F_SETLK:
3665 return F_SETLK;
3666 case TARGET_F_SETLKW:
3667 return F_SETLKW;
3668 case TARGET_F_GETOWN:
3669 return F_GETOWN;
3670 case TARGET_F_SETOWN:
3671 return F_SETOWN;
3672 case TARGET_F_GETSIG:
3673 return F_GETSIG;
3674 case TARGET_F_SETSIG:
3675 return F_SETSIG;
3676 #if TARGET_ABI_BITS == 32
3677 case TARGET_F_GETLK64:
3678 return F_GETLK64;
3679 case TARGET_F_SETLK64:
3680 return F_SETLK64;
3681 case TARGET_F_SETLKW64:
3682 return F_SETLKW64;
3683 #endif
3684 case TARGET_F_SETLEASE:
3685 return F_SETLEASE;
3686 case TARGET_F_GETLEASE:
3687 return F_GETLEASE;
3688 #ifdef F_DUPFD_CLOEXEC
3689 case TARGET_F_DUPFD_CLOEXEC:
3690 return F_DUPFD_CLOEXEC;
3691 #endif
3692 case TARGET_F_NOTIFY:
3693 return F_NOTIFY;
3694 default:
3695 return -TARGET_EINVAL;
3696 }
3697 return -TARGET_EINVAL;
3698 }
3699
3700 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
3701 {
3702 struct flock fl;
3703 struct target_flock *target_fl;
3704 struct flock64 fl64;
3705 struct target_flock64 *target_fl64;
3706 abi_long ret;
3707 int host_cmd = target_to_host_fcntl_cmd(cmd);
3708
3709 if (host_cmd == -TARGET_EINVAL)
3710 return host_cmd;
3711
3712 switch(cmd) {
3713 case TARGET_F_GETLK:
3714 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3715 return -TARGET_EFAULT;
3716 fl.l_type = tswap16(target_fl->l_type);
3717 fl.l_whence = tswap16(target_fl->l_whence);
3718 fl.l_start = tswapl(target_fl->l_start);
3719 fl.l_len = tswapl(target_fl->l_len);
3720 fl.l_pid = tswap32(target_fl->l_pid);
3721 unlock_user_struct(target_fl, arg, 0);
3722 ret = get_errno(fcntl(fd, host_cmd, &fl));
3723 if (ret == 0) {
3724 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
3725 return -TARGET_EFAULT;
3726 target_fl->l_type = tswap16(fl.l_type);
3727 target_fl->l_whence = tswap16(fl.l_whence);
3728 target_fl->l_start = tswapl(fl.l_start);
3729 target_fl->l_len = tswapl(fl.l_len);
3730 target_fl->l_pid = tswap32(fl.l_pid);
3731 unlock_user_struct(target_fl, arg, 1);
3732 }
3733 break;
3734
3735 case TARGET_F_SETLK:
3736 case TARGET_F_SETLKW:
3737 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3738 return -TARGET_EFAULT;
3739 fl.l_type = tswap16(target_fl->l_type);
3740 fl.l_whence = tswap16(target_fl->l_whence);
3741 fl.l_start = tswapl(target_fl->l_start);
3742 fl.l_len = tswapl(target_fl->l_len);
3743 fl.l_pid = tswap32(target_fl->l_pid);
3744 unlock_user_struct(target_fl, arg, 0);
3745 ret = get_errno(fcntl(fd, host_cmd, &fl));
3746 break;
3747
3748 case TARGET_F_GETLK64:
3749 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3750 return -TARGET_EFAULT;
3751 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3752 fl64.l_whence = tswap16(target_fl64->l_whence);
3753 fl64.l_start = tswapl(target_fl64->l_start);
3754 fl64.l_len = tswapl(target_fl64->l_len);
3755 fl64.l_pid = tswap32(target_fl64->l_pid);
3756 unlock_user_struct(target_fl64, arg, 0);
3757 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3758 if (ret == 0) {
3759 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
3760 return -TARGET_EFAULT;
3761 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
3762 target_fl64->l_whence = tswap16(fl64.l_whence);
3763 target_fl64->l_start = tswapl(fl64.l_start);
3764 target_fl64->l_len = tswapl(fl64.l_len);
3765 target_fl64->l_pid = tswap32(fl64.l_pid);
3766 unlock_user_struct(target_fl64, arg, 1);
3767 }
3768 break;
3769 case TARGET_F_SETLK64:
3770 case TARGET_F_SETLKW64:
3771 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3772 return -TARGET_EFAULT;
3773 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3774 fl64.l_whence = tswap16(target_fl64->l_whence);
3775 fl64.l_start = tswapl(target_fl64->l_start);
3776 fl64.l_len = tswapl(target_fl64->l_len);
3777 fl64.l_pid = tswap32(target_fl64->l_pid);
3778 unlock_user_struct(target_fl64, arg, 0);
3779 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3780 break;
3781
3782 case TARGET_F_GETFL:
3783 ret = get_errno(fcntl(fd, host_cmd, arg));
3784 if (ret >= 0) {
3785 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
3786 }
3787 break;
3788
3789 case TARGET_F_SETFL:
3790 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
3791 break;
3792
3793 case TARGET_F_SETOWN:
3794 case TARGET_F_GETOWN:
3795 case TARGET_F_SETSIG:
3796 case TARGET_F_GETSIG:
3797 case TARGET_F_SETLEASE:
3798 case TARGET_F_GETLEASE:
3799 ret = get_errno(fcntl(fd, host_cmd, arg));
3800 break;
3801
3802 default:
3803 ret = get_errno(fcntl(fd, cmd, arg));
3804 break;
3805 }
3806 return ret;
3807 }
3808
3809 #ifdef USE_UID16
3810
3811 static inline int high2lowuid(int uid)
3812 {
3813 if (uid > 65535)
3814 return 65534;
3815 else
3816 return uid;
3817 }
3818
3819 static inline int high2lowgid(int gid)
3820 {
3821 if (gid > 65535)
3822 return 65534;
3823 else
3824 return gid;
3825 }
3826
3827 static inline int low2highuid(int uid)
3828 {
3829 if ((int16_t)uid == -1)
3830 return -1;
3831 else
3832 return uid;
3833 }
3834
3835 static inline int low2highgid(int gid)
3836 {
3837 if ((int16_t)gid == -1)
3838 return -1;
3839 else
3840 return gid;
3841 }
3842
3843 #endif /* USE_UID16 */
3844
3845 void syscall_init(void)
3846 {
3847 IOCTLEntry *ie;
3848 const argtype *arg_type;
3849 int size;
3850 int i;
3851
3852 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
3853 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
3854 #include "syscall_types.h"
3855 #undef STRUCT
3856 #undef STRUCT_SPECIAL
3857
3858 /* we patch the ioctl size if necessary. We rely on the fact that
3859 no ioctl has all the bits at '1' in the size field */
3860 ie = ioctl_entries;
3861 while (ie->target_cmd != 0) {
3862 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
3863 TARGET_IOC_SIZEMASK) {
3864 arg_type = ie->arg_type;
3865 if (arg_type[0] != TYPE_PTR) {
3866 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
3867 ie->target_cmd);
3868 exit(1);
3869 }
3870 arg_type++;
3871 size = thunk_type_size(arg_type, 0);
3872 ie->target_cmd = (ie->target_cmd &
3873 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
3874 (size << TARGET_IOC_SIZESHIFT);
3875 }
3876
3877 /* Build target_to_host_errno_table[] table from
3878 * host_to_target_errno_table[]. */
3879 for (i=0; i < ERRNO_TABLE_SIZE; i++)
3880 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
3881
3882 /* automatic consistency check if same arch */
3883 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
3884 (defined(__x86_64__) && defined(TARGET_X86_64))
3885 if (unlikely(ie->target_cmd != ie->host_cmd)) {
3886 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
3887 ie->name, ie->target_cmd, ie->host_cmd);
3888 }
3889 #endif
3890 ie++;
3891 }
3892 }
3893
3894 #if TARGET_ABI_BITS == 32
3895 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
3896 {
3897 #ifdef TARGET_WORDS_BIGENDIAN
3898 return ((uint64_t)word0 << 32) | word1;
3899 #else
3900 return ((uint64_t)word1 << 32) | word0;
3901 #endif
3902 }
3903 #else /* TARGET_ABI_BITS == 32 */
3904 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
3905 {
3906 return word0;
3907 }
3908 #endif /* TARGET_ABI_BITS != 32 */
3909
3910 #ifdef TARGET_NR_truncate64
3911 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
3912 abi_long arg2,
3913 abi_long arg3,
3914 abi_long arg4)
3915 {
3916 #ifdef TARGET_ARM
3917 if (((CPUARMState *)cpu_env)->eabi)
3918 {
3919 arg2 = arg3;
3920 arg3 = arg4;
3921 }
3922 #endif
3923 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
3924 }
3925 #endif
3926
3927 #ifdef TARGET_NR_ftruncate64
3928 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
3929 abi_long arg2,
3930 abi_long arg3,
3931 abi_long arg4)
3932 {
3933 #ifdef TARGET_ARM
3934 if (((CPUARMState *)cpu_env)->eabi)
3935 {
3936 arg2 = arg3;
3937 arg3 = arg4;
3938 }
3939 #endif
3940 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
3941 }
3942 #endif
3943
3944 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
3945 abi_ulong target_addr)
3946 {
3947 struct target_timespec *target_ts;
3948
3949 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
3950 return -TARGET_EFAULT;
3951 host_ts->tv_sec = tswapl(target_ts->tv_sec);
3952 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
3953 unlock_user_struct(target_ts, target_addr, 0);
3954 return 0;
3955 }
3956
3957 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
3958 struct timespec *host_ts)
3959 {
3960 struct target_timespec *target_ts;
3961
3962 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
3963 return -TARGET_EFAULT;
3964 target_ts->tv_sec = tswapl(host_ts->tv_sec);
3965 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
3966 unlock_user_struct(target_ts, target_addr, 1);
3967 return 0;
3968 }
3969
3970 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
3971 static inline abi_long host_to_target_stat64(void *cpu_env,
3972 abi_ulong target_addr,
3973 struct stat *host_st)
3974 {
3975 #ifdef TARGET_ARM
3976 if (((CPUARMState *)cpu_env)->eabi) {
3977 struct target_eabi_stat64 *target_st;
3978
3979 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
3980 return -TARGET_EFAULT;
3981 memset(target_st, 0, sizeof(struct target_eabi_stat64));
3982 __put_user(host_st->st_dev, &target_st->st_dev);
3983 __put_user(host_st->st_ino, &target_st->st_ino);
3984 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3985 __put_user(host_st->st_ino, &target_st->__st_ino);
3986 #endif
3987 __put_user(host_st->st_mode, &target_st->st_mode);
3988 __put_user(host_st->st_nlink, &target_st->st_nlink);
3989 __put_user(host_st->st_uid, &target_st->st_uid);
3990 __put_user(host_st->st_gid, &target_st->st_gid);
3991 __put_user(host_st->st_rdev, &target_st->st_rdev);
3992 __put_user(host_st->st_size, &target_st->st_size);
3993 __put_user(host_st->st_blksize, &target_st->st_blksize);
3994 __put_user(host_st->st_blocks, &target_st->st_blocks);
3995 __put_user(host_st->st_atime, &target_st->target_st_atime);
3996 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
3997 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
3998 unlock_user_struct(target_st, target_addr, 1);
3999 } else
4000 #endif
4001 {
4002 #if TARGET_LONG_BITS == 64
4003 struct target_stat *target_st;
4004 #else
4005 struct target_stat64 *target_st;
4006 #endif
4007
4008 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4009 return -TARGET_EFAULT;
4010 memset(target_st, 0, sizeof(*target_st));
4011 __put_user(host_st->st_dev, &target_st->st_dev);
4012 __put_user(host_st->st_ino, &target_st->st_ino);
4013 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4014 __put_user(host_st->st_ino, &target_st->__st_ino);
4015 #endif
4016 __put_user(host_st->st_mode, &target_st->st_mode);
4017 __put_user(host_st->st_nlink, &target_st->st_nlink);
4018 __put_user(host_st->st_uid, &target_st->st_uid);
4019 __put_user(host_st->st_gid, &target_st->st_gid);
4020 __put_user(host_st->st_rdev, &target_st->st_rdev);
4021 /* XXX: better use of kernel struct */
4022 __put_user(host_st->st_size, &target_st->st_size);
4023 __put_user(host_st->st_blksize, &target_st->st_blksize);
4024 __put_user(host_st->st_blocks, &target_st->st_blocks);
4025 __put_user(host_st->st_atime, &target_st->target_st_atime);
4026 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4027 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4028 unlock_user_struct(target_st, target_addr, 1);
4029 }
4030
4031 return 0;
4032 }
4033 #endif
4034
4035 #if defined(CONFIG_USE_NPTL)
4036 /* ??? Using host futex calls even when target atomic operations
4037 are not really atomic probably breaks things. However implementing
4038 futexes locally would make futexes shared between multiple processes
4039 tricky. However they're probably useless because guest atomic
4040 operations won't work either. */
4041 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4042 target_ulong uaddr2, int val3)
4043 {
4044 struct timespec ts, *pts;
4045 int base_op;
4046
4047 /* ??? We assume FUTEX_* constants are the same on both host
4048 and target. */
4049 #ifdef FUTEX_CMD_MASK
4050 base_op = op & FUTEX_CMD_MASK;
4051 #else
4052 base_op = op;
4053 #endif
4054 switch (base_op) {
4055 case FUTEX_WAIT:
4056 if (timeout) {
4057 pts = &ts;
4058 target_to_host_timespec(pts, timeout);
4059 } else {
4060 pts = NULL;
4061 }
4062 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4063 pts, NULL, 0));
4064 case FUTEX_WAKE:
4065 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4066 case FUTEX_FD:
4067 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4068 case FUTEX_REQUEUE:
4069 case FUTEX_CMP_REQUEUE:
4070 case FUTEX_WAKE_OP:
4071 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4072 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4073 But the prototype takes a `struct timespec *'; insert casts
4074 to satisfy the compiler. We do not need to tswap TIMEOUT
4075 since it's not compared to guest memory. */
4076 pts = (struct timespec *)(uintptr_t) timeout;
4077 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4078 g2h(uaddr2),
4079 (base_op == FUTEX_CMP_REQUEUE
4080 ? tswap32(val3)
4081 : val3)));
4082 default:
4083 return -TARGET_ENOSYS;
4084 }
4085 }
4086 #endif
4087
4088 /* Map host to target signal numbers for the wait family of syscalls.
4089 Assume all other status bits are the same. */
4090 static int host_to_target_waitstatus(int status)
4091 {
4092 if (WIFSIGNALED(status)) {
4093 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4094 }
4095 if (WIFSTOPPED(status)) {
4096 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4097 | (status & 0xff);
4098 }
4099 return status;
4100 }
4101
4102 int get_osversion(void)
4103 {
4104 static int osversion;
4105 struct new_utsname buf;
4106 const char *s;
4107 int i, n, tmp;
4108 if (osversion)
4109 return osversion;
4110 if (qemu_uname_release && *qemu_uname_release) {
4111 s = qemu_uname_release;
4112 } else {
4113 if (sys_uname(&buf))
4114 return 0;
4115 s = buf.release;
4116 }
4117 tmp = 0;
4118 for (i = 0; i < 3; i++) {
4119 n = 0;
4120 while (*s >= '0' && *s <= '9') {
4121 n *= 10;
4122 n += *s - '0';
4123 s++;
4124 }
4125 tmp = (tmp << 8) + n;
4126 if (*s == '.')
4127 s++;
4128 }
4129 osversion = tmp;
4130 return osversion;
4131 }
4132
4133 /* do_syscall() should always have a single exit point at the end so
4134 that actions, such as logging of syscall results, can be performed.
4135 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4136 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4137 abi_long arg2, abi_long arg3, abi_long arg4,
4138 abi_long arg5, abi_long arg6)
4139 {
4140 abi_long ret;
4141 struct stat st;
4142 struct statfs stfs;
4143 void *p;
4144
4145 #ifdef DEBUG
4146 gemu_log("syscall %d", num);
4147 #endif
4148 if(do_strace)
4149 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4150
4151 switch(num) {
4152 case TARGET_NR_exit:
4153 #ifdef CONFIG_USE_NPTL
4154 /* In old applications this may be used to implement _exit(2).
4155 However in threaded applictions it is used for thread termination,
4156 and _exit_group is used for application termination.
4157 Do thread termination if we have more then one thread. */
4158 /* FIXME: This probably breaks if a signal arrives. We should probably
4159 be disabling signals. */
4160 if (first_cpu->next_cpu) {
4161 TaskState *ts;
4162 CPUState **lastp;
4163 CPUState *p;
4164
4165 cpu_list_lock();
4166 lastp = &first_cpu;
4167 p = first_cpu;
4168 while (p && p != (CPUState *)cpu_env) {
4169 lastp = &p->next_cpu;
4170 p = p->next_cpu;
4171 }
4172 /* If we didn't find the CPU for this thread then something is
4173 horribly wrong. */
4174 if (!p)
4175 abort();
4176 /* Remove the CPU from the list. */
4177 *lastp = p->next_cpu;
4178 cpu_list_unlock();
4179 ts = ((CPUState *)cpu_env)->opaque;
4180 if (ts->child_tidptr) {
4181 put_user_u32(0, ts->child_tidptr);
4182 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4183 NULL, NULL, 0);
4184 }
4185 /* TODO: Free CPU state. */
4186 pthread_exit(NULL);
4187 }
4188 #endif
4189 #ifdef TARGET_GPROF
4190 _mcleanup();
4191 #endif
4192 gdb_exit(cpu_env, arg1);
4193 _exit(arg1);
4194 ret = 0; /* avoid warning */
4195 break;
4196 case TARGET_NR_read:
4197 if (arg3 == 0)
4198 ret = 0;
4199 else {
4200 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4201 goto efault;
4202 ret = get_errno(read(arg1, p, arg3));
4203 unlock_user(p, arg2, ret);
4204 }
4205 break;
4206 case TARGET_NR_write:
4207 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4208 goto efault;
4209 ret = get_errno(write(arg1, p, arg3));
4210 unlock_user(p, arg2, 0);
4211 break;
4212 case TARGET_NR_open:
4213 if (!(p = lock_user_string(arg1)))
4214 goto efault;
4215 ret = get_errno(open(path(p),
4216 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4217 arg3));
4218 unlock_user(p, arg1, 0);
4219 break;
4220 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4221 case TARGET_NR_openat:
4222 if (!(p = lock_user_string(arg2)))
4223 goto efault;
4224 ret = get_errno(sys_openat(arg1,
4225 path(p),
4226 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4227 arg4));
4228 unlock_user(p, arg2, 0);
4229 break;
4230 #endif
4231 case TARGET_NR_close:
4232 ret = get_errno(close(arg1));
4233 break;
4234 case TARGET_NR_brk:
4235 ret = do_brk(arg1);
4236 break;
4237 case TARGET_NR_fork:
4238 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4239 break;
4240 #ifdef TARGET_NR_waitpid
4241 case TARGET_NR_waitpid:
4242 {
4243 int status;
4244 ret = get_errno(waitpid(arg1, &status, arg3));
4245 if (!is_error(ret) && arg2
4246 && put_user_s32(host_to_target_waitstatus(status), arg2))
4247 goto efault;
4248 }
4249 break;
4250 #endif
4251 #ifdef TARGET_NR_waitid
4252 case TARGET_NR_waitid:
4253 {
4254 siginfo_t info;
4255 info.si_pid = 0;
4256 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4257 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4258 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4259 goto efault;
4260 host_to_target_siginfo(p, &info);
4261 unlock_user(p, arg3, sizeof(target_siginfo_t));
4262 }
4263 }
4264 break;
4265 #endif
4266 #ifdef TARGET_NR_creat /* not on alpha */
4267 case TARGET_NR_creat:
4268 if (!(p = lock_user_string(arg1)))
4269 goto efault;
4270 ret = get_errno(creat(p, arg2));
4271 unlock_user(p, arg1, 0);
4272 break;
4273 #endif
4274 case TARGET_NR_link:
4275 {
4276 void * p2;
4277 p = lock_user_string(arg1);
4278 p2 = lock_user_string(arg2);
4279 if (!p || !p2)
4280 ret = -TARGET_EFAULT;
4281 else
4282 ret = get_errno(link(p, p2));
4283 unlock_user(p2, arg2, 0);
4284 unlock_user(p, arg1, 0);
4285 }
4286 break;
4287 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4288 case TARGET_NR_linkat:
4289 {
4290 void * p2 = NULL;
4291 if (!arg2 || !arg4)
4292 goto efault;
4293 p = lock_user_string(arg2);
4294 p2 = lock_user_string(arg4);
4295 if (!p || !p2)
4296 ret = -TARGET_EFAULT;
4297 else
4298 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4299 unlock_user(p, arg2, 0);
4300 unlock_user(p2, arg4, 0);
4301 }
4302 break;
4303 #endif
4304 case TARGET_NR_unlink:
4305 if (!(p = lock_user_string(arg1)))
4306 goto efault;
4307 ret = get_errno(unlink(p));
4308 unlock_user(p, arg1, 0);
4309 break;
4310 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4311 case TARGET_NR_unlinkat:
4312 if (!(p = lock_user_string(arg2)))
4313 goto efault;
4314 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4315 unlock_user(p, arg2, 0);
4316 break;
4317 #endif
4318 case TARGET_NR_execve:
4319 {
4320 char **argp, **envp;
4321 int argc, envc;
4322 abi_ulong gp;
4323 abi_ulong guest_argp;
4324 abi_ulong guest_envp;
4325 abi_ulong addr;
4326 char **q;
4327
4328 argc = 0;
4329 guest_argp = arg2;
4330 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4331 if (get_user_ual(addr, gp))
4332 goto efault;
4333 if (!addr)
4334 break;
4335 argc++;
4336 }
4337 envc = 0;
4338 guest_envp = arg3;
4339 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4340 if (get_user_ual(addr, gp))
4341 goto efault;
4342 if (!addr)
4343 break;
4344 envc++;
4345 }
4346
4347 argp = alloca((argc + 1) * sizeof(void *));
4348 envp = alloca((envc + 1) * sizeof(void *));
4349
4350 for (gp = guest_argp, q = argp; gp;
4351 gp += sizeof(abi_ulong), q++) {
4352 if (get_user_ual(addr, gp))
4353 goto execve_efault;
4354 if (!addr)
4355 break;
4356 if (!(*q = lock_user_string(addr)))
4357 goto execve_efault;
4358 }
4359 *q = NULL;
4360
4361 for (gp = guest_envp, q = envp; gp;
4362 gp += sizeof(abi_ulong), q++) {
4363 if (get_user_ual(addr, gp))
4364 goto execve_efault;
4365 if (!addr)
4366 break;
4367 if (!(*q = lock_user_string(addr)))
4368 goto execve_efault;
4369 }
4370 *q = NULL;
4371
4372 if (!(p = lock_user_string(arg1)))
4373 goto execve_efault;
4374 ret = get_errno(execve(p, argp, envp));
4375 unlock_user(p, arg1, 0);
4376
4377 goto execve_end;
4378
4379 execve_efault:
4380 ret = -TARGET_EFAULT;
4381
4382 execve_end:
4383 for (gp = guest_argp, q = argp; *q;
4384 gp += sizeof(abi_ulong), q++) {
4385 if (get_user_ual(addr, gp)
4386 || !addr)
4387 break;
4388 unlock_user(*q, addr, 0);
4389 }
4390 for (gp = guest_envp, q = envp; *q;
4391 gp += sizeof(abi_ulong), q++) {
4392 if (get_user_ual(addr, gp)
4393 || !addr)
4394 break;
4395 unlock_user(*q, addr, 0);
4396 }
4397 }
4398 break;
4399 case TARGET_NR_chdir:
4400 if (!(p = lock_user_string(arg1)))
4401 goto efault;
4402 ret = get_errno(chdir(p));
4403 unlock_user(p, arg1, 0);
4404 break;
4405 #ifdef TARGET_NR_time
4406 case TARGET_NR_time:
4407 {
4408 time_t host_time;
4409 ret = get_errno(time(&host_time));
4410 if (!is_error(ret)
4411 && arg1
4412 && put_user_sal(host_time, arg1))
4413 goto efault;
4414 }
4415 break;
4416 #endif
4417 case TARGET_NR_mknod:
4418 if (!(p = lock_user_string(arg1)))
4419 goto efault;
4420 ret = get_errno(mknod(p, arg2, arg3));
4421 unlock_user(p, arg1, 0);
4422 break;
4423 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4424 case TARGET_NR_mknodat:
4425 if (!(p = lock_user_string(arg2)))
4426 goto efault;
4427 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4428 unlock_user(p, arg2, 0);
4429 break;
4430 #endif
4431 case TARGET_NR_chmod:
4432 if (!(p = lock_user_string(arg1)))
4433 goto efault;
4434 ret = get_errno(chmod(p, arg2));
4435 unlock_user(p, arg1, 0);
4436 break;
4437 #ifdef TARGET_NR_break
4438 case TARGET_NR_break:
4439 goto unimplemented;
4440 #endif
4441 #ifdef TARGET_NR_oldstat
4442 case TARGET_NR_oldstat:
4443 goto unimplemented;
4444 #endif
4445 case TARGET_NR_lseek:
4446 ret = get_errno(lseek(arg1, arg2, arg3));
4447 break;
4448 #ifdef TARGET_NR_getxpid
4449 case TARGET_NR_getxpid:
4450 #else
4451 case TARGET_NR_getpid:
4452 #endif
4453 ret = get_errno(getpid());
4454 break;
4455 case TARGET_NR_mount:
4456 {
4457 /* need to look at the data field */
4458 void *p2, *p3;
4459 p = lock_user_string(arg1);
4460 p2 = lock_user_string(arg2);
4461 p3 = lock_user_string(arg3);
4462 if (!p || !p2 || !p3)
4463 ret = -TARGET_EFAULT;
4464 else
4465 /* FIXME - arg5 should be locked, but it isn't clear how to
4466 * do that since it's not guaranteed to be a NULL-terminated
4467 * string.
4468 */
4469 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4470 unlock_user(p, arg1, 0);
4471 unlock_user(p2, arg2, 0);
4472 unlock_user(p3, arg3, 0);
4473 break;
4474 }
4475 #ifdef TARGET_NR_umount
4476 case TARGET_NR_umount:
4477 if (!(p = lock_user_string(arg1)))
4478 goto efault;
4479 ret = get_errno(umount(p));
4480 unlock_user(p, arg1, 0);
4481 break;
4482 #endif
4483 #ifdef TARGET_NR_stime /* not on alpha */
4484 case TARGET_NR_stime:
4485 {
4486 time_t host_time;
4487 if (get_user_sal(host_time, arg1))
4488 goto efault;
4489 ret = get_errno(stime(&host_time));
4490 }
4491 break;
4492 #endif
4493 case TARGET_NR_ptrace:
4494 goto unimplemented;
4495 #ifdef TARGET_NR_alarm /* not on alpha */
4496 case TARGET_NR_alarm:
4497 ret = alarm(arg1);
4498 break;
4499 #endif
4500 #ifdef TARGET_NR_oldfstat
4501 case TARGET_NR_oldfstat:
4502 goto unimplemented;
4503 #endif
4504 #ifdef TARGET_NR_pause /* not on alpha */
4505 case TARGET_NR_pause:
4506 ret = get_errno(pause());
4507 break;
4508 #endif
4509 #ifdef TARGET_NR_utime
4510 case TARGET_NR_utime:
4511 {
4512 struct utimbuf tbuf, *host_tbuf;
4513 struct target_utimbuf *target_tbuf;
4514 if (arg2) {
4515 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4516 goto efault;
4517 tbuf.actime = tswapl(target_tbuf->actime);
4518 tbuf.modtime = tswapl(target_tbuf->modtime);
4519 unlock_user_struct(target_tbuf, arg2, 0);
4520 host_tbuf = &tbuf;
4521 } else {
4522 host_tbuf = NULL;
4523 }
4524 if (!(p = lock_user_string(arg1)))
4525 goto efault;
4526 ret = get_errno(utime(p, host_tbuf));
4527 unlock_user(p, arg1, 0);
4528 }
4529 break;
4530 #endif
4531 case TARGET_NR_utimes:
4532 {
4533 struct timeval *tvp, tv[2];
4534 if (arg2) {
4535 if (copy_from_user_timeval(&tv[0], arg2)
4536 || copy_from_user_timeval(&tv[1],
4537 arg2 + sizeof(struct target_timeval)))
4538 goto efault;
4539 tvp = tv;
4540 } else {
4541 tvp = NULL;
4542 }
4543 if (!(p = lock_user_string(arg1)))
4544 goto efault;
4545 ret = get_errno(utimes(p, tvp));
4546 unlock_user(p, arg1, 0);
4547 }
4548 break;
4549 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
4550 case TARGET_NR_futimesat:
4551 {
4552 struct timeval *tvp, tv[2];
4553 if (arg3) {
4554 if (copy_from_user_timeval(&tv[0], arg3)
4555 || copy_from_user_timeval(&tv[1],
4556 arg3 + sizeof(struct target_timeval)))
4557 goto efault;
4558 tvp = tv;
4559 } else {
4560 tvp = NULL;
4561 }
4562 if (!(p = lock_user_string(arg2)))
4563 goto efault;
4564 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
4565 unlock_user(p, arg2, 0);
4566 }
4567 break;
4568 #endif
4569 #ifdef TARGET_NR_stty
4570 case TARGET_NR_stty:
4571 goto unimplemented;
4572 #endif
4573 #ifdef TARGET_NR_gtty
4574 case TARGET_NR_gtty:
4575 goto unimplemented;
4576 #endif
4577 case TARGET_NR_access:
4578 if (!(p = lock_user_string(arg1)))
4579 goto efault;
4580 ret = get_errno(access(path(p), arg2));
4581 unlock_user(p, arg1, 0);
4582 break;
4583 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
4584 case TARGET_NR_faccessat:
4585 if (!(p = lock_user_string(arg2)))
4586 goto efault;
4587 ret = get_errno(sys_faccessat(arg1, p, arg3));
4588 unlock_user(p, arg2, 0);
4589 break;
4590 #endif
4591 #ifdef TARGET_NR_nice /* not on alpha */
4592 case TARGET_NR_nice:
4593 ret = get_errno(nice(arg1));
4594 break;
4595 #endif
4596 #ifdef TARGET_NR_ftime
4597 case TARGET_NR_ftime:
4598 goto unimplemented;
4599 #endif
4600 case TARGET_NR_sync:
4601 sync();
4602 ret = 0;
4603 break;
4604 case TARGET_NR_kill:
4605 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
4606 break;
4607 case TARGET_NR_rename:
4608 {
4609 void *p2;
4610 p = lock_user_string(arg1);
4611 p2 = lock_user_string(arg2);
4612 if (!p || !p2)
4613 ret = -TARGET_EFAULT;
4614 else
4615 ret = get_errno(rename(p, p2));
4616 unlock_user(p2, arg2, 0);
4617 unlock_user(p, arg1, 0);
4618 }
4619 break;
4620 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
4621 case TARGET_NR_renameat:
4622 {
4623 void *p2;
4624 p = lock_user_string(arg2);
4625 p2 = lock_user_string(arg4);
4626 if (!p || !p2)
4627 ret = -TARGET_EFAULT;
4628 else
4629 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
4630 unlock_user(p2, arg4, 0);
4631 unlock_user(p, arg2, 0);
4632 }
4633 break;
4634 #endif
4635 case TARGET_NR_mkdir:
4636 if (!(p = lock_user_string(arg1)))
4637 goto efault;
4638 ret = get_errno(mkdir(p, arg2));
4639 unlock_user(p, arg1, 0);
4640 break;
4641 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
4642 case TARGET_NR_mkdirat:
4643 if (!(p = lock_user_string(arg2)))
4644 goto efault;
4645 ret = get_errno(sys_mkdirat(arg1, p, arg3));
4646 unlock_user(p, arg2, 0);
4647 break;
4648 #endif
4649 case TARGET_NR_rmdir:
4650 if (!(p = lock_user_string(arg1)))
4651 goto efault;
4652 ret = get_errno(rmdir(p));
4653 unlock_user(p, arg1, 0);
4654 break;
4655 case TARGET_NR_dup:
4656 ret = get_errno(dup(arg1));
4657 break;
4658 case TARGET_NR_pipe:
4659 ret = do_pipe(cpu_env, arg1, 0);
4660 break;
4661 #ifdef TARGET_NR_pipe2
4662 case TARGET_NR_pipe2:
4663 ret = do_pipe(cpu_env, arg1, arg2);
4664 break;
4665 #endif
4666 case TARGET_NR_times:
4667 {
4668 struct target_tms *tmsp;
4669 struct tms tms;
4670 ret = get_errno(times(&tms));
4671 if (arg1) {
4672 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
4673 if (!tmsp)
4674 goto efault;
4675 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
4676 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
4677 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
4678 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
4679 }
4680 if (!is_error(ret))
4681 ret = host_to_target_clock_t(ret);
4682 }
4683 break;
4684 #ifdef TARGET_NR_prof
4685 case TARGET_NR_prof:
4686 goto unimplemented;
4687 #endif
4688 #ifdef TARGET_NR_signal
4689 case TARGET_NR_signal:
4690 goto unimplemented;
4691 #endif
4692 case TARGET_NR_acct:
4693 if (arg1 == 0) {
4694 ret = get_errno(acct(NULL));
4695 } else {
4696 if (!(p = lock_user_string(arg1)))
4697 goto efault;
4698 ret = get_errno(acct(path(p)));
4699 unlock_user(p, arg1, 0);
4700 }
4701 break;
4702 #ifdef TARGET_NR_umount2 /* not on alpha */
4703 case TARGET_NR_umount2:
4704 if (!(p = lock_user_string(arg1)))
4705 goto efault;
4706 ret = get_errno(umount2(p, arg2));
4707 unlock_user(p, arg1, 0);
4708 break;
4709 #endif
4710 #ifdef TARGET_NR_lock
4711 case TARGET_NR_lock:
4712 goto unimplemented;
4713 #endif
4714 case TARGET_NR_ioctl:
4715 ret = do_ioctl(arg1, arg2, arg3);
4716 break;
4717 case TARGET_NR_fcntl:
4718 ret = do_fcntl(arg1, arg2, arg3);
4719 break;
4720 #ifdef TARGET_NR_mpx
4721 case TARGET_NR_mpx:
4722 goto unimplemented;
4723 #endif
4724 case TARGET_NR_setpgid:
4725 ret = get_errno(setpgid(arg1, arg2));
4726 break;
4727 #ifdef TARGET_NR_ulimit
4728 case TARGET_NR_ulimit:
4729 goto unimplemented;
4730 #endif
4731 #ifdef TARGET_NR_oldolduname
4732 case TARGET_NR_oldolduname:
4733 goto unimplemented;
4734 #endif
4735 case TARGET_NR_umask:
4736 ret = get_errno(umask(arg1));
4737 break;
4738 case TARGET_NR_chroot:
4739 if (!(p = lock_user_string(arg1)))
4740 goto efault;
4741 ret = get_errno(chroot(p));
4742 unlock_user(p, arg1, 0);
4743 break;
4744 case TARGET_NR_ustat:
4745 goto unimplemented;
4746 case TARGET_NR_dup2:
4747 ret = get_errno(dup2(arg1, arg2));
4748 break;
4749 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
4750 case TARGET_NR_dup3:
4751 ret = get_errno(dup3(arg1, arg2, arg3));
4752 break;
4753 #endif
4754 #ifdef TARGET_NR_getppid /* not on alpha */
4755 case TARGET_NR_getppid:
4756 ret = get_errno(getppid());
4757 break;
4758 #endif
4759 case TARGET_NR_getpgrp:
4760 ret = get_errno(getpgrp());
4761 break;
4762 case TARGET_NR_setsid:
4763 ret = get_errno(setsid());
4764 break;
4765 #ifdef TARGET_NR_sigaction
4766 case TARGET_NR_sigaction:
4767 {
4768 #if !defined(TARGET_MIPS)
4769 struct target_old_sigaction *old_act;
4770 struct target_sigaction act, oact, *pact;
4771 if (arg2) {
4772 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4773 goto efault;
4774 act._sa_handler = old_act->_sa_handler;
4775 target_siginitset(&act.sa_mask, old_act->sa_mask);
4776 act.sa_flags = old_act->sa_flags;
4777 act.sa_restorer = old_act->sa_restorer;
4778 unlock_user_struct(old_act, arg2, 0);
4779 pact = &act;
4780 } else {
4781 pact = NULL;
4782 }
4783 ret = get_errno(do_sigaction(arg1, pact, &oact));
4784 if (!is_error(ret) && arg3) {
4785 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
4786 goto efault;
4787 old_act->_sa_handler = oact._sa_handler;
4788 old_act->sa_mask = oact.sa_mask.sig[0];
4789 old_act->sa_flags = oact.sa_flags;
4790 old_act->sa_restorer = oact.sa_restorer;
4791 unlock_user_struct(old_act, arg3, 1);
4792 }
4793 #else
4794 struct target_sigaction act, oact, *pact, *old_act;
4795
4796 if (arg2) {
4797 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4798 goto efault;
4799 act._sa_handler = old_act->_sa_handler;
4800 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
4801 act.sa_flags = old_act->sa_flags;
4802 unlock_user_struct(old_act, arg2, 0);
4803 pact = &act;
4804 } else {
4805 pact = NULL;
4806 }
4807
4808 ret = get_errno(do_sigaction(arg1, pact, &oact));
4809
4810 if (!is_error(ret) && arg3) {
4811 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
4812 goto efault;
4813 old_act->_sa_handler = oact._sa_handler;
4814 old_act->sa_flags = oact.sa_flags;
4815 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
4816 old_act->sa_mask.sig[1] = 0;
4817 old_act->sa_mask.sig[2] = 0;
4818 old_act->sa_mask.sig[3] = 0;
4819 unlock_user_struct(old_act, arg3, 1);
4820 }
4821 #endif
4822 }
4823 break;
4824 #endif
4825 case TARGET_NR_rt_sigaction:
4826 {
4827 struct target_sigaction *act;
4828 struct target_sigaction *oact;
4829
4830 if (arg2) {
4831 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
4832 goto efault;
4833 } else
4834 act = NULL;
4835 if (arg3) {
4836 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
4837 ret = -TARGET_EFAULT;
4838 goto rt_sigaction_fail;
4839 }
4840 } else
4841 oact = NULL;
4842 ret = get_errno(do_sigaction(arg1, act, oact));
4843 rt_sigaction_fail:
4844 if (act)
4845 unlock_user_struct(act, arg2, 0);
4846 if (oact)
4847 unlock_user_struct(oact, arg3, 1);
4848 }
4849 break;
4850 #ifdef TARGET_NR_sgetmask /* not on alpha */
4851 case TARGET_NR_sgetmask:
4852 {
4853 sigset_t cur_set;
4854 abi_ulong target_set;
4855 sigprocmask(0, NULL, &cur_set);
4856 host_to_target_old_sigset(&target_set, &cur_set);
4857 ret = target_set;
4858 }
4859 break;
4860 #endif
4861 #ifdef TARGET_NR_ssetmask /* not on alpha */
4862 case TARGET_NR_ssetmask:
4863 {
4864 sigset_t set, oset, cur_set;
4865 abi_ulong target_set = arg1;
4866 sigprocmask(0, NULL, &cur_set);
4867 target_to_host_old_sigset(&set, &target_set);
4868 sigorset(&set, &set, &cur_set);
4869 sigprocmask(SIG_SETMASK, &set, &oset);
4870 host_to_target_old_sigset(&target_set, &oset);
4871 ret = target_set;
4872 }
4873 break;
4874 #endif
4875 #ifdef TARGET_NR_sigprocmask
4876 case TARGET_NR_sigprocmask:
4877 {
4878 int how = arg1;
4879 sigset_t set, oldset, *set_ptr;
4880
4881 if (arg2) {
4882 switch(how) {
4883 case TARGET_SIG_BLOCK:
4884 how = SIG_BLOCK;
4885 break;
4886 case TARGET_SIG_UNBLOCK:
4887 how = SIG_UNBLOCK;
4888 break;
4889 case TARGET_SIG_SETMASK:
4890 how = SIG_SETMASK;
4891 break;
4892 default:
4893 ret = -TARGET_EINVAL;
4894 goto fail;
4895 }
4896 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
4897 goto efault;
4898 target_to_host_old_sigset(&set, p);
4899 unlock_user(p, arg2, 0);
4900 set_ptr = &set;
4901 } else {
4902 how = 0;
4903 set_ptr = NULL;
4904 }
4905 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
4906 if (!is_error(ret) && arg3) {
4907 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
4908 goto efault;
4909 host_to_target_old_sigset(p, &oldset);
4910 unlock_user(p, arg3, sizeof(target_sigset_t));
4911 }
4912 }
4913 break;
4914 #endif
4915 case TARGET_NR_rt_sigprocmask:
4916 {
4917 int how = arg1;
4918 sigset_t set, oldset, *set_ptr;
4919
4920 if (arg2) {
4921 switch(how) {
4922 case TARGET_SIG_BLOCK:
4923 how = SIG_BLOCK;
4924 break;
4925 case TARGET_SIG_UNBLOCK:
4926 how = SIG_UNBLOCK;
4927 break;
4928 case TARGET_SIG_SETMASK:
4929 how = SIG_SETMASK;
4930 break;
4931 default:
4932 ret = -TARGET_EINVAL;
4933 goto fail;
4934 }
4935 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
4936 goto efault;
4937 target_to_host_sigset(&set, p);
4938 unlock_user(p, arg2, 0);
4939 set_ptr = &set;
4940 } else {
4941 how = 0;
4942 set_ptr = NULL;
4943 }
4944 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
4945 if (!is_error(ret) && arg3) {
4946 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
4947 goto efault;
4948 host_to_target_sigset(p, &oldset);
4949 unlock_user(p, arg3, sizeof(target_sigset_t));
4950 }
4951 }
4952 break;
4953 #ifdef TARGET_NR_sigpending
4954 case TARGET_NR_sigpending:
4955 {
4956 sigset_t set;
4957 ret = get_errno(sigpending(&set));
4958 if (!is_error(ret)) {
4959 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
4960 goto efault;
4961 host_to_target_old_sigset(p, &set);
4962 unlock_user(p, arg1, sizeof(target_sigset_t));
4963 }
4964 }
4965 break;
4966 #endif
4967 case TARGET_NR_rt_sigpending:
4968 {
4969 sigset_t set;
4970 ret = get_errno(sigpending(&set));
4971 if (!is_error(ret)) {
4972 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
4973 goto efault;
4974 host_to_target_sigset(p, &set);
4975 unlock_user(p, arg1, sizeof(target_sigset_t));
4976 }
4977 }
4978 break;
4979 #ifdef TARGET_NR_sigsuspend
4980 case TARGET_NR_sigsuspend:
4981 {
4982 sigset_t set;
4983 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4984 goto efault;
4985 target_to_host_old_sigset(&set, p);
4986 unlock_user(p, arg1, 0);
4987 ret = get_errno(sigsuspend(&set));
4988 }
4989 break;
4990 #endif
4991 case TARGET_NR_rt_sigsuspend:
4992 {
4993 sigset_t set;
4994 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4995 goto efault;
4996 target_to_host_sigset(&set, p);
4997 unlock_user(p, arg1, 0);
4998 ret = get_errno(sigsuspend(&set));
4999 }
5000 break;
5001 case TARGET_NR_rt_sigtimedwait:
5002 {
5003 sigset_t set;
5004 struct timespec uts, *puts;
5005 siginfo_t uinfo;
5006
5007 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5008 goto efault;
5009 target_to_host_sigset(&set, p);
5010 unlock_user(p, arg1, 0);
5011 if (arg3) {
5012 puts = &uts;
5013 target_to_host_timespec(puts, arg3);
5014 } else {
5015 puts = NULL;
5016 }
5017 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5018 if (!is_error(ret) && arg2) {
5019 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5020 goto efault;
5021 host_to_target_siginfo(p, &uinfo);
5022 unlock_user(p, arg2, sizeof(target_siginfo_t));
5023 }
5024 }
5025 break;
5026 case TARGET_NR_rt_sigqueueinfo:
5027 {
5028 siginfo_t uinfo;
5029 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5030 goto efault;
5031 target_to_host_siginfo(&uinfo, p);
5032 unlock_user(p, arg1, 0);
5033 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5034 }
5035 break;
5036 #ifdef TARGET_NR_sigreturn
5037 case TARGET_NR_sigreturn:
5038 /* NOTE: ret is eax, so not transcoding must be done */
5039 ret = do_sigreturn(cpu_env);
5040 break;
5041 #endif
5042 case TARGET_NR_rt_sigreturn:
5043 /* NOTE: ret is eax, so not transcoding must be done */
5044 ret = do_rt_sigreturn(cpu_env);
5045 break;
5046 case TARGET_NR_sethostname:
5047 if (!(p = lock_user_string(arg1)))
5048 goto efault;
5049 ret = get_errno(sethostname(p, arg2));
5050 unlock_user(p, arg1, 0);
5051 break;
5052 case TARGET_NR_setrlimit:
5053 {
5054 /* XXX: convert resource ? */
5055 int resource = arg1;
5056 struct target_rlimit *target_rlim;
5057 struct rlimit rlim;
5058 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5059 goto efault;
5060 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
5061 rlim.rlim_max = tswapl(target_rlim->rlim_max);
5062 unlock_user_struct(target_rlim, arg2, 0);
5063 ret = get_errno(setrlimit(resource, &rlim));
5064 }
5065 break;
5066 case TARGET_NR_getrlimit:
5067 {
5068 /* XXX: convert resource ? */
5069 int resource = arg1;
5070 struct target_rlimit *target_rlim;
5071 struct rlimit rlim;
5072
5073 ret = get_errno(getrlimit(resource, &rlim));
5074 if (!is_error(ret)) {
5075 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5076 goto efault;
5077 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
5078 target_rlim->rlim_max = tswapl(rlim.rlim_max);
5079 unlock_user_struct(target_rlim, arg2, 1);
5080 }
5081 }
5082 break;
5083 case TARGET_NR_getrusage:
5084 {
5085 struct rusage rusage;
5086 ret = get_errno(getrusage(arg1, &rusage));
5087 if (!is_error(ret)) {
5088 host_to_target_rusage(arg2, &rusage);
5089 }
5090 }
5091 break;
5092 case TARGET_NR_gettimeofday:
5093 {
5094 struct timeval tv;
5095 ret = get_errno(gettimeofday(&tv, NULL));
5096 if (!is_error(ret)) {
5097 if (copy_to_user_timeval(arg1, &tv))
5098 goto efault;
5099 }
5100 }
5101 break;
5102 case TARGET_NR_settimeofday:
5103 {
5104 struct timeval tv;
5105 if (copy_from_user_timeval(&tv, arg1))
5106 goto efault;
5107 ret = get_errno(settimeofday(&tv, NULL));
5108 }
5109 break;
5110 #ifdef TARGET_NR_select
5111 case TARGET_NR_select:
5112 {
5113 struct target_sel_arg_struct *sel;
5114 abi_ulong inp, outp, exp, tvp;
5115 long nsel;
5116
5117 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5118 goto efault;
5119 nsel = tswapl(sel->n);
5120 inp = tswapl(sel->inp);
5121 outp = tswapl(sel->outp);
5122 exp = tswapl(sel->exp);
5123 tvp = tswapl(sel->tvp);
5124 unlock_user_struct(sel, arg1, 0);
5125 ret = do_select(nsel, inp, outp, exp, tvp);
5126 }
5127 break;
5128 #endif
5129 case TARGET_NR_symlink:
5130 {
5131 void *p2;
5132 p = lock_user_string(arg1);
5133 p2 = lock_user_string(arg2);
5134 if (!p || !p2)
5135 ret = -TARGET_EFAULT;
5136 else
5137 ret = get_errno(symlink(p, p2));
5138 unlock_user(p2, arg2, 0);
5139 unlock_user(p, arg1, 0);
5140 }
5141 break;
5142 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5143 case TARGET_NR_symlinkat:
5144 {
5145 void *p2;
5146 p = lock_user_string(arg1);
5147 p2 = lock_user_string(arg3);
5148 if (!p || !p2)
5149 ret = -TARGET_EFAULT;
5150 else
5151 ret = get_errno(sys_symlinkat(p, arg2, p2));
5152 unlock_user(p2, arg3, 0);
5153 unlock_user(p, arg1, 0);
5154 }
5155 break;
5156 #endif
5157 #ifdef TARGET_NR_oldlstat
5158 case TARGET_NR_oldlstat:
5159 goto unimplemented;
5160 #endif
5161 case TARGET_NR_readlink:
5162 {
5163 void *p2, *temp;
5164 p = lock_user_string(arg1);
5165 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5166 if (!p || !p2)
5167 ret = -TARGET_EFAULT;
5168 else {
5169 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5170 char real[PATH_MAX];
5171 temp = realpath(exec_path,real);
5172 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5173 snprintf((char *)p2, arg3, "%s", real);
5174 }
5175 else
5176 ret = get_errno(readlink(path(p), p2, arg3));
5177 }
5178 unlock_user(p2, arg2, ret);
5179 unlock_user(p, arg1, 0);
5180 }
5181 break;
5182 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5183 case TARGET_NR_readlinkat:
5184 {
5185 void *p2;
5186 p = lock_user_string(arg2);
5187 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5188 if (!p || !p2)
5189 ret = -TARGET_EFAULT;
5190 else
5191 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5192 unlock_user(p2, arg3, ret);
5193 unlock_user(p, arg2, 0);
5194 }
5195 break;
5196 #endif
5197 #ifdef TARGET_NR_uselib
5198 case TARGET_NR_uselib:
5199 goto unimplemented;
5200 #endif
5201 #ifdef TARGET_NR_swapon
5202 case TARGET_NR_swapon:
5203 if (!(p = lock_user_string(arg1)))
5204 goto efault;
5205 ret = get_errno(swapon(p, arg2));
5206 unlock_user(p, arg1, 0);
5207 break;
5208 #endif
5209 case TARGET_NR_reboot:
5210 goto unimplemented;
5211 #ifdef TARGET_NR_readdir
5212 case TARGET_NR_readdir:
5213 goto unimplemented;
5214 #endif
5215 #ifdef TARGET_NR_mmap
5216 case TARGET_NR_mmap:
5217 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5218 {
5219 abi_ulong *v;
5220 abi_ulong v1, v2, v3, v4, v5, v6;
5221 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5222 goto efault;
5223 v1 = tswapl(v[0]);
5224 v2 = tswapl(v[1]);
5225 v3 = tswapl(v[2]);
5226 v4 = tswapl(v[3]);
5227 v5 = tswapl(v[4]);
5228 v6 = tswapl(v[5]);
5229 unlock_user(v, arg1, 0);
5230 ret = get_errno(target_mmap(v1, v2, v3,
5231 target_to_host_bitmask(v4, mmap_flags_tbl),
5232 v5, v6));
5233 }
5234 #else
5235 ret = get_errno(target_mmap(arg1, arg2, arg3,
5236 target_to_host_bitmask(arg4, mmap_flags_tbl),
5237 arg5,
5238 arg6));
5239 #endif
5240 break;
5241 #endif
5242 #ifdef TARGET_NR_mmap2
5243 case TARGET_NR_mmap2:
5244 #ifndef MMAP_SHIFT
5245 #define MMAP_SHIFT 12
5246 #endif
5247 ret = get_errno(target_mmap(arg1, arg2, arg3,
5248 target_to_host_bitmask(arg4, mmap_flags_tbl),
5249 arg5,
5250 arg6 << MMAP_SHIFT));
5251 break;
5252 #endif
5253 case TARGET_NR_munmap:
5254 ret = get_errno(target_munmap(arg1, arg2));
5255 break;
5256 case TARGET_NR_mprotect:
5257 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5258 break;
5259 #ifdef TARGET_NR_mremap
5260 case TARGET_NR_mremap:
5261 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5262 break;
5263 #endif
5264 /* ??? msync/mlock/munlock are broken for softmmu. */
5265 #ifdef TARGET_NR_msync
5266 case TARGET_NR_msync:
5267 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5268 break;
5269 #endif
5270 #ifdef TARGET_NR_mlock
5271 case TARGET_NR_mlock:
5272 ret = get_errno(mlock(g2h(arg1), arg2));
5273 break;
5274 #endif
5275 #ifdef TARGET_NR_munlock
5276 case TARGET_NR_munlock:
5277 ret = get_errno(munlock(g2h(arg1), arg2));
5278 break;
5279 #endif
5280 #ifdef TARGET_NR_mlockall
5281 case TARGET_NR_mlockall:
5282 ret = get_errno(mlockall(arg1));
5283 break;
5284 #endif
5285 #ifdef TARGET_NR_munlockall
5286 case TARGET_NR_munlockall:
5287 ret = get_errno(munlockall());
5288 break;
5289 #endif
5290 case TARGET_NR_truncate:
5291 if (!(p = lock_user_string(arg1)))
5292 goto efault;
5293 ret = get_errno(truncate(p, arg2));
5294 unlock_user(p, arg1, 0);
5295 break;
5296 case TARGET_NR_ftruncate:
5297 ret = get_errno(ftruncate(arg1, arg2));
5298 break;
5299 case TARGET_NR_fchmod:
5300 ret = get_errno(fchmod(arg1, arg2));
5301 break;
5302 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5303 case TARGET_NR_fchmodat:
5304 if (!(p = lock_user_string(arg2)))
5305 goto efault;
5306 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5307 unlock_user(p, arg2, 0);
5308 break;
5309 #endif
5310 case TARGET_NR_getpriority:
5311 /* libc does special remapping of the return value of
5312 * sys_getpriority() so it's just easiest to call
5313 * sys_getpriority() directly rather than through libc. */
5314 ret = get_errno(sys_getpriority(arg1, arg2));
5315 break;
5316 case TARGET_NR_setpriority:
5317 ret = get_errno(setpriority(arg1, arg2, arg3));
5318 break;
5319 #ifdef TARGET_NR_profil
5320 case TARGET_NR_profil:
5321 goto unimplemented;
5322 #endif
5323 case TARGET_NR_statfs:
5324 if (!(p = lock_user_string(arg1)))
5325 goto efault;
5326 ret = get_errno(statfs(path(p), &stfs));
5327 unlock_user(p, arg1, 0);
5328 convert_statfs:
5329 if (!is_error(ret)) {
5330 struct target_statfs *target_stfs;
5331
5332 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5333 goto efault;
5334 __put_user(stfs.f_type, &target_stfs->f_type);
5335 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5336 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5337 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5338 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5339 __put_user(stfs.f_files, &target_stfs->f_files);
5340 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5341 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5342 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5343 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5344 unlock_user_struct(target_stfs, arg2, 1);
5345 }
5346 break;
5347 case TARGET_NR_fstatfs:
5348 ret = get_errno(fstatfs(arg1, &stfs));
5349 goto convert_statfs;
5350 #ifdef TARGET_NR_statfs64
5351 case TARGET_NR_statfs64:
5352 if (!(p = lock_user_string(arg1)))
5353 goto efault;
5354 ret = get_errno(statfs(path(p), &stfs));
5355 unlock_user(p, arg1, 0);
5356 convert_statfs64:
5357 if (!is_error(ret)) {
5358 struct target_statfs64 *target_stfs;
5359
5360 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5361 goto efault;
5362 __put_user(stfs.f_type, &target_stfs->f_type);
5363 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5364 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5365 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5366 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5367 __put_user(stfs.f_files, &target_stfs->f_files);
5368 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5369 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5370 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5371 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5372 unlock_user_struct(target_stfs, arg3, 1);
5373 }
5374 break;
5375 case TARGET_NR_fstatfs64:
5376 ret = get_errno(fstatfs(arg1, &stfs));
5377 goto convert_statfs64;
5378 #endif
5379 #ifdef TARGET_NR_ioperm
5380 case TARGET_NR_ioperm:
5381 goto unimplemented;
5382 #endif
5383 #ifdef TARGET_NR_socketcall
5384 case TARGET_NR_socketcall:
5385 ret = do_socketcall(arg1, arg2);
5386 break;
5387 #endif
5388 #ifdef TARGET_NR_accept
5389 case TARGET_NR_accept:
5390 ret = do_accept(arg1, arg2, arg3);
5391 break;
5392 #endif
5393 #ifdef TARGET_NR_bind
5394 case TARGET_NR_bind:
5395 ret = do_bind(arg1, arg2, arg3);
5396 break;
5397 #endif
5398 #ifdef TARGET_NR_connect
5399 case TARGET_NR_connect:
5400 ret = do_connect(arg1, arg2, arg3);
5401 break;
5402 #endif
5403 #ifdef TARGET_NR_getpeername
5404 case TARGET_NR_getpeername:
5405 ret = do_getpeername(arg1, arg2, arg3);
5406 break;
5407 #endif
5408 #ifdef TARGET_NR_getsockname
5409 case TARGET_NR_getsockname:
5410 ret = do_getsockname(arg1, arg2, arg3);
5411 break;
5412 #endif
5413 #ifdef TARGET_NR_getsockopt
5414 case TARGET_NR_getsockopt:
5415 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5416 break;
5417 #endif
5418 #ifdef TARGET_NR_listen
5419 case TARGET_NR_listen:
5420 ret = get_errno(listen(arg1, arg2));
5421 break;
5422 #endif
5423 #ifdef TARGET_NR_recv
5424 case TARGET_NR_recv:
5425 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5426 break;
5427 #endif
5428 #ifdef TARGET_NR_recvfrom
5429 case TARGET_NR_recvfrom:
5430 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5431 break;
5432 #endif
5433 #ifdef TARGET_NR_recvmsg
5434 case TARGET_NR_recvmsg:
5435 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5436 break;
5437 #endif
5438 #ifdef TARGET_NR_send
5439 case TARGET_NR_send:
5440 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5441 break;
5442 #endif
5443 #ifdef TARGET_NR_sendmsg
5444 case TARGET_NR_sendmsg:
5445 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5446 break;
5447 #endif
5448 #ifdef TARGET_NR_sendto
5449 case TARGET_NR_sendto:
5450 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5451 break;
5452 #endif
5453 #ifdef TARGET_NR_shutdown
5454 case TARGET_NR_shutdown:
5455 ret = get_errno(shutdown(arg1, arg2));
5456 break;
5457 #endif
5458 #ifdef TARGET_NR_socket
5459 case TARGET_NR_socket:
5460 ret = do_socket(arg1, arg2, arg3);
5461 break;
5462 #endif
5463 #ifdef TARGET_NR_socketpair
5464 case TARGET_NR_socketpair:
5465 ret = do_socketpair(arg1, arg2, arg3, arg4);
5466 break;
5467 #endif
5468 #ifdef TARGET_NR_setsockopt
5469 case TARGET_NR_setsockopt:
5470 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5471 break;
5472 #endif
5473
5474 case TARGET_NR_syslog:
5475 if (!(p = lock_user_string(arg2)))
5476 goto efault;
5477 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5478 unlock_user(p, arg2, 0);
5479 break;
5480
5481 case TARGET_NR_setitimer:
5482 {
5483 struct itimerval value, ovalue, *pvalue;
5484
5485 if (arg2) {
5486 pvalue = &value;
5487 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5488 || copy_from_user_timeval(&pvalue->it_value,
5489 arg2 + sizeof(struct target_timeval)))
5490 goto efault;
5491 } else {
5492 pvalue = NULL;
5493 }
5494 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5495 if (!is_error(ret) && arg3) {
5496 if (copy_to_user_timeval(arg3,
5497 &ovalue.it_interval)
5498 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5499 &ovalue.it_value))
5500 goto efault;
5501 }
5502 }
5503 break;
5504 case TARGET_NR_getitimer:
5505 {
5506 struct itimerval value;
5507
5508 ret = get_errno(getitimer(arg1, &value));
5509 if (!is_error(ret) && arg2) {
5510 if (copy_to_user_timeval(arg2,
5511 &value.it_interval)
5512 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5513 &value.it_value))
5514 goto efault;
5515 }
5516 }
5517 break;
5518 case TARGET_NR_stat:
5519 if (!(p = lock_user_string(arg1)))
5520 goto efault;
5521 ret = get_errno(stat(path(p), &st));
5522 unlock_user(p, arg1, 0);
5523 goto do_stat;
5524 case TARGET_NR_lstat:
5525 if (!(p = lock_user_string(arg1)))
5526 goto efault;
5527 ret = get_errno(lstat(path(p), &st));
5528 unlock_user(p, arg1, 0);
5529 goto do_stat;
5530 case TARGET_NR_fstat:
5531 {
5532 ret = get_errno(fstat(arg1, &st));
5533 do_stat:
5534 if (!is_error(ret)) {
5535 struct target_stat *target_st;
5536
5537 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5538 goto efault;
5539 memset(target_st, 0, sizeof(*target_st));
5540 __put_user(st.st_dev, &target_st->st_dev);
5541 __put_user(st.st_ino, &target_st->st_ino);
5542 __put_user(st.st_mode, &target_st->st_mode);
5543 __put_user(st.st_uid, &target_st->st_uid);
5544 __put_user(st.st_gid, &target_st->st_gid);
5545 __put_user(st.st_nlink, &target_st->st_nlink);
5546 __put_user(st.st_rdev, &target_st->st_rdev);
5547 __put_user(st.st_size, &target_st->st_size);
5548 __put_user(st.st_blksize, &target_st->st_blksize);
5549 __put_user(st.st_blocks, &target_st->st_blocks);
5550 __put_user(st.st_atime, &target_st->target_st_atime);
5551 __put_user(st.st_mtime, &target_st->target_st_mtime);
5552 __put_user(st.st_ctime, &target_st->target_st_ctime);
5553 unlock_user_struct(target_st, arg2, 1);
5554 }
5555 }
5556 break;
5557 #ifdef TARGET_NR_olduname
5558 case TARGET_NR_olduname:
5559 goto unimplemented;
5560 #endif
5561 #ifdef TARGET_NR_iopl
5562 case TARGET_NR_iopl:
5563 goto unimplemented;
5564 #endif
5565 case TARGET_NR_vhangup:
5566 ret = get_errno(vhangup());
5567 break;
5568 #ifdef TARGET_NR_idle
5569 case TARGET_NR_idle:
5570 goto unimplemented;
5571 #endif
5572 #ifdef TARGET_NR_syscall
5573 case TARGET_NR_syscall:
5574 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5575 break;
5576 #endif
5577 case TARGET_NR_wait4:
5578 {
5579 int status;
5580 abi_long status_ptr = arg2;
5581 struct rusage rusage, *rusage_ptr;
5582 abi_ulong target_rusage = arg4;
5583 if (target_rusage)
5584 rusage_ptr = &rusage;
5585 else
5586 rusage_ptr = NULL;
5587 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5588 if (!is_error(ret)) {
5589 if (status_ptr) {
5590 status = host_to_target_waitstatus(status);
5591 if (put_user_s32(status, status_ptr))
5592 goto efault;
5593 }
5594 if (target_rusage)
5595 host_to_target_rusage(target_rusage, &rusage);
5596 }
5597 }
5598 break;
5599 #ifdef TARGET_NR_swapoff
5600 case TARGET_NR_swapoff:
5601 if (!(p = lock_user_string(arg1)))
5602 goto efault;
5603 ret = get_errno(swapoff(p));
5604 unlock_user(p, arg1, 0);
5605 break;
5606 #endif
5607 case TARGET_NR_sysinfo:
5608 {
5609 struct target_sysinfo *target_value;
5610 struct sysinfo value;
5611 ret = get_errno(sysinfo(&value));
5612 if (!is_error(ret) && arg1)
5613 {
5614 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5615 goto efault;
5616 __put_user(value.uptime, &target_value->uptime);
5617 __put_user(value.loads[0], &target_value->loads[0]);
5618 __put_user(value.loads[1], &target_value->loads[1]);
5619 __put_user(value.loads[2], &target_value->loads[2]);
5620 __put_user(value.totalram, &target_value->totalram);
5621 __put_user(value.freeram, &target_value->freeram);
5622 __put_user(value.sharedram, &target_value->sharedram);
5623 __put_user(value.bufferram, &target_value->bufferram);
5624 __put_user(value.totalswap, &target_value->totalswap);
5625 __put_user(value.freeswap, &target_value->freeswap);
5626 __put_user(value.procs, &target_value->procs);
5627 __put_user(value.totalhigh, &target_value->totalhigh);
5628 __put_user(value.freehigh, &target_value->freehigh);
5629 __put_user(value.mem_unit, &target_value->mem_unit);
5630 unlock_user_struct(target_value, arg1, 1);
5631 }
5632 }
5633 break;
5634 #ifdef TARGET_NR_ipc
5635 case TARGET_NR_ipc:
5636 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5637 break;
5638 #endif
5639 #ifdef TARGET_NR_semget
5640 case TARGET_NR_semget:
5641 ret = get_errno(semget(arg1, arg2, arg3));
5642 break;
5643 #endif
5644 #ifdef TARGET_NR_semop
5645 case TARGET_NR_semop:
5646 ret = get_errno(do_semop(arg1, arg2, arg3));
5647 break;
5648 #endif
5649 #ifdef TARGET_NR_semctl
5650 case TARGET_NR_semctl:
5651 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5652 break;
5653 #endif
5654 #ifdef TARGET_NR_msgctl
5655 case TARGET_NR_msgctl:
5656 ret = do_msgctl(arg1, arg2, arg3);
5657 break;
5658 #endif
5659 #ifdef TARGET_NR_msgget
5660 case TARGET_NR_msgget:
5661 ret = get_errno(msgget(arg1, arg2));
5662 break;
5663 #endif
5664 #ifdef TARGET_NR_msgrcv
5665 case TARGET_NR_msgrcv:
5666 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
5667 break;
5668 #endif
5669 #ifdef TARGET_NR_msgsnd
5670 case TARGET_NR_msgsnd:
5671 ret = do_msgsnd(arg1, arg2, arg3, arg4);
5672 break;
5673 #endif
5674 #ifdef TARGET_NR_shmget
5675 case TARGET_NR_shmget:
5676 ret = get_errno(shmget(arg1, arg2, arg3));
5677 break;
5678 #endif
5679 #ifdef TARGET_NR_shmctl
5680 case TARGET_NR_shmctl:
5681 ret = do_shmctl(arg1, arg2, arg3);
5682 break;
5683 #endif
5684 #ifdef TARGET_NR_shmat
5685 case TARGET_NR_shmat:
5686 ret = do_shmat(arg1, arg2, arg3);
5687 break;
5688 #endif
5689 #ifdef TARGET_NR_shmdt
5690 case TARGET_NR_shmdt:
5691 ret = do_shmdt(arg1);
5692 break;
5693 #endif
5694 case TARGET_NR_fsync:
5695 ret = get_errno(fsync(arg1));
5696 break;
5697 case TARGET_NR_clone:
5698 #if defined(TARGET_SH4)
5699 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
5700 #elif defined(TARGET_CRIS)
5701 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
5702 #else
5703 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
5704 #endif
5705 break;
5706 #ifdef __NR_exit_group
5707 /* new thread calls */
5708 case TARGET_NR_exit_group:
5709 #ifdef TARGET_GPROF
5710 _mcleanup();
5711 #endif
5712 gdb_exit(cpu_env, arg1);
5713 ret = get_errno(exit_group(arg1));
5714 break;
5715 #endif
5716 case TARGET_NR_setdomainname:
5717 if (!(p = lock_user_string(arg1)))
5718 goto efault;
5719 ret = get_errno(setdomainname(p, arg2));
5720 unlock_user(p, arg1, 0);
5721 break;
5722 case TARGET_NR_uname:
5723 /* no need to transcode because we use the linux syscall */
5724 {
5725 struct new_utsname * buf;
5726
5727 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
5728 goto efault;
5729 ret = get_errno(sys_uname(buf));
5730 if (!is_error(ret)) {
5731 /* Overrite the native machine name with whatever is being
5732 emulated. */
5733 strcpy (buf->machine, UNAME_MACHINE);
5734 /* Allow the user to override the reported release. */
5735 if (qemu_uname_release && *qemu_uname_release)
5736 strcpy (buf->release, qemu_uname_release);
5737 }
5738 unlock_user_struct(buf, arg1, 1);
5739 }
5740 break;
5741 #ifdef TARGET_I386
5742 case TARGET_NR_modify_ldt:
5743 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
5744 break;
5745 #if !defined(TARGET_X86_64)
5746 case TARGET_NR_vm86old:
5747 goto unimplemented;
5748 case TARGET_NR_vm86:
5749 ret = do_vm86(cpu_env, arg1, arg2);
5750 break;
5751 #endif
5752 #endif
5753 case TARGET_NR_adjtimex:
5754 goto unimplemented;
5755 #ifdef TARGET_NR_create_module
5756 case TARGET_NR_create_module:
5757 #endif
5758 case TARGET_NR_init_module:
5759 case TARGET_NR_delete_module:
5760 #ifdef TARGET_NR_get_kernel_syms
5761 case TARGET_NR_get_kernel_syms:
5762 #endif
5763 goto unimplemented;
5764 case TARGET_NR_quotactl:
5765 goto unimplemented;
5766 case TARGET_NR_getpgid:
5767 ret = get_errno(getpgid(arg1));
5768 break;
5769 case TARGET_NR_fchdir:
5770 ret = get_errno(fchdir(arg1));
5771 break;
5772 #ifdef TARGET_NR_bdflush /* not on x86_64 */
5773 case TARGET_NR_bdflush:
5774 goto unimplemented;
5775 #endif
5776 #ifdef TARGET_NR_sysfs
5777 case TARGET_NR_sysfs:
5778 goto unimplemented;
5779 #endif
5780 case TARGET_NR_personality:
5781 ret = get_errno(personality(arg1));
5782 break;
5783 #ifdef TARGET_NR_afs_syscall
5784 case TARGET_NR_afs_syscall:
5785 goto unimplemented;
5786 #endif
5787 #ifdef TARGET_NR__llseek /* Not on alpha */
5788 case TARGET_NR__llseek:
5789 {
5790 #if defined (__x86_64__)
5791 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
5792 if (put_user_s64(ret, arg4))
5793 goto efault;
5794 #else
5795 int64_t res;
5796 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
5797 if (put_user_s64(res, arg4))
5798 goto efault;
5799 #endif
5800 }
5801 break;
5802 #endif
5803 case TARGET_NR_getdents:
5804 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
5805 {
5806 struct target_dirent *target_dirp;
5807 struct linux_dirent *dirp;
5808 abi_long count = arg3;
5809
5810 dirp = malloc(count);
5811 if (!dirp) {
5812 ret = -TARGET_ENOMEM;
5813 goto fail;
5814 }
5815
5816 ret = get_errno(sys_getdents(arg1, dirp, count));
5817 if (!is_error(ret)) {
5818 struct linux_dirent *de;
5819 struct target_dirent *tde;
5820 int len = ret;
5821 int reclen, treclen;
5822 int count1, tnamelen;
5823
5824 count1 = 0;
5825 de = dirp;
5826 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5827 goto efault;
5828 tde = target_dirp;
5829 while (len > 0) {
5830 reclen = de->d_reclen;
5831 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
5832 tde->d_reclen = tswap16(treclen);
5833 tde->d_ino = tswapl(de->d_ino);
5834 tde->d_off = tswapl(de->d_off);
5835 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
5836 if (tnamelen > 256)
5837 tnamelen = 256;
5838 /* XXX: may not be correct */
5839 pstrcpy(tde->d_name, tnamelen, de->d_name);
5840 de = (struct linux_dirent *)((char *)de + reclen);
5841 len -= reclen;
5842 tde = (struct target_dirent *)((char *)tde + treclen);
5843 count1 += treclen;
5844 }
5845 ret = count1;
5846 unlock_user(target_dirp, arg2, ret);
5847 }
5848 free(dirp);
5849 }
5850 #else
5851 {
5852 struct linux_dirent *dirp;
5853 abi_long count = arg3;
5854
5855 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5856 goto efault;
5857 ret = get_errno(sys_getdents(arg1, dirp, count));
5858 if (!is_error(ret)) {
5859 struct linux_dirent *de;
5860 int len = ret;
5861 int reclen;
5862 de = dirp;
5863 while (len > 0) {
5864 reclen = de->d_reclen;
5865 if (reclen > len)
5866 break;
5867 de->d_reclen = tswap16(reclen);
5868 tswapls(&de->d_ino);
5869 tswapls(&de->d_off);
5870 de = (struct linux_dirent *)((char *)de + reclen);
5871 len -= reclen;
5872 }
5873 }
5874 unlock_user(dirp, arg2, ret);
5875 }
5876 #endif
5877 break;
5878 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
5879 case TARGET_NR_getdents64:
5880 {
5881 struct linux_dirent64 *dirp;
5882 abi_long count = arg3;
5883 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5884 goto efault;
5885 ret = get_errno(sys_getdents64(arg1, dirp, count));
5886 if (!is_error(ret)) {
5887 struct linux_dirent64 *de;
5888 int len = ret;
5889 int reclen;
5890 de = dirp;
5891 while (len > 0) {
5892 reclen = de->d_reclen;
5893 if (reclen > len)
5894 break;
5895 de->d_reclen = tswap16(reclen);
5896 tswap64s((uint64_t *)&de->d_ino);
5897 tswap64s((uint64_t *)&de->d_off);
5898 de = (struct linux_dirent64 *)((char *)de + reclen);
5899 len -= reclen;
5900 }
5901 }
5902 unlock_user(dirp, arg2, ret);
5903 }
5904 break;
5905 #endif /* TARGET_NR_getdents64 */
5906 #ifdef TARGET_NR__newselect
5907 case TARGET_NR__newselect:
5908 ret = do_select(arg1, arg2, arg3, arg4, arg5);
5909 break;
5910 #endif
5911 #ifdef TARGET_NR_poll
5912 case TARGET_NR_poll:
5913 {
5914 struct target_pollfd *target_pfd;
5915 unsigned int nfds = arg2;
5916 int timeout = arg3;
5917 struct pollfd *pfd;
5918 unsigned int i;
5919
5920 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
5921 if (!target_pfd)
5922 goto efault;
5923 pfd = alloca(sizeof(struct pollfd) * nfds);
5924 for(i = 0; i < nfds; i++) {
5925 pfd[i].fd = tswap32(target_pfd[i].fd);
5926 pfd[i].events = tswap16(target_pfd[i].events);
5927 }
5928 ret = get_errno(poll(pfd, nfds, timeout));
5929 if (!is_error(ret)) {
5930 for(i = 0; i < nfds; i++) {
5931 target_pfd[i].revents = tswap16(pfd[i].revents);
5932 }
5933 ret += nfds * (sizeof(struct target_pollfd)
5934 - sizeof(struct pollfd));
5935 }
5936 unlock_user(target_pfd, arg1, ret);
5937 }
5938 break;
5939 #endif
5940 case TARGET_NR_flock:
5941 /* NOTE: the flock constant seems to be the same for every
5942 Linux platform */
5943 ret = get_errno(flock(arg1, arg2));
5944 break;
5945 case TARGET_NR_readv:
5946 {
5947 int count = arg3;
5948 struct iovec *vec;
5949
5950 vec = alloca(count * sizeof(struct iovec));
5951 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
5952 goto efault;
5953 ret = get_errno(readv(arg1, vec, count));
5954 unlock_iovec(vec, arg2, count, 1);
5955 }
5956 break;
5957 case TARGET_NR_writev:
5958 {
5959 int count = arg3;
5960 struct iovec *vec;
5961
5962 vec = alloca(count * sizeof(struct iovec));
5963 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
5964 goto efault;
5965 ret = get_errno(writev(arg1, vec, count));
5966 unlock_iovec(vec, arg2, count, 0);
5967 }
5968 break;
5969 case TARGET_NR_getsid:
5970 ret = get_errno(getsid(arg1));
5971 break;
5972 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
5973 case TARGET_NR_fdatasync:
5974 ret = get_errno(fdatasync(arg1));
5975 break;
5976 #endif
5977 case TARGET_NR__sysctl:
5978 /* We don't implement this, but ENOTDIR is always a safe
5979 return value. */
5980 ret = -TARGET_ENOTDIR;
5981 break;
5982 case TARGET_NR_sched_setparam:
5983 {
5984 struct sched_param *target_schp;
5985 struct sched_param schp;
5986
5987 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
5988 goto efault;
5989 schp.sched_priority = tswap32(target_schp->sched_priority);
5990 unlock_user_struct(target_schp, arg2, 0);
5991 ret = get_errno(sched_setparam(arg1, &schp));
5992 }
5993 break;
5994 case TARGET_NR_sched_getparam:
5995 {
5996 struct sched_param *target_schp;
5997 struct sched_param schp;
5998 ret = get_errno(sched_getparam(arg1, &schp));
5999 if (!is_error(ret)) {
6000 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
6001 goto efault;
6002 target_schp->sched_priority = tswap32(schp.sched_priority);
6003 unlock_user_struct(target_schp, arg2, 1);
6004 }
6005 }
6006 break;
6007 case TARGET_NR_sched_setscheduler:
6008 {
6009 struct sched_param *target_schp;
6010 struct sched_param schp;
6011 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6012 goto efault;
6013 schp.sched_priority = tswap32(target_schp->sched_priority);
6014 unlock_user_struct(target_schp, arg3, 0);
6015 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6016 }
6017 break;
6018 case TARGET_NR_sched_getscheduler:
6019 ret = get_errno(sched_getscheduler(arg1));
6020 break;
6021 case TARGET_NR_sched_yield:
6022 ret = get_errno(sched_yield());
6023 break;
6024 case TARGET_NR_sched_get_priority_max:
6025 ret = get_errno(sched_get_priority_max(arg1));
6026 break;
6027 case TARGET_NR_sched_get_priority_min:
6028 ret = get_errno(sched_get_priority_min(arg1));
6029 break;
6030 case TARGET_NR_sched_rr_get_interval:
6031 {
6032 struct timespec ts;
6033 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6034 if (!is_error(ret)) {
6035 host_to_target_timespec(arg2, &ts);
6036 }
6037 }
6038 break;
6039 case TARGET_NR_nanosleep:
6040 {
6041 struct timespec req, rem;
6042 target_to_host_timespec(&req, arg1);
6043 ret = get_errno(nanosleep(&req, &rem));
6044 if (is_error(ret) && arg2) {
6045 host_to_target_timespec(arg2, &rem);
6046 }
6047 }
6048 break;
6049 #ifdef TARGET_NR_query_module
6050 case TARGET_NR_query_module:
6051 goto unimplemented;
6052 #endif
6053 #ifdef TARGET_NR_nfsservctl
6054 case TARGET_NR_nfsservctl:
6055 goto unimplemented;
6056 #endif
6057 case TARGET_NR_prctl:
6058 switch (arg1)
6059 {
6060 case PR_GET_PDEATHSIG:
6061 {
6062 int deathsig;
6063 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6064 if (!is_error(ret) && arg2
6065 && put_user_ual(deathsig, arg2))
6066 goto efault;
6067 }
6068 break;
6069 default:
6070 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6071 break;
6072 }
6073 break;
6074 #ifdef TARGET_NR_arch_prctl
6075 case TARGET_NR_arch_prctl:
6076 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6077 ret = do_arch_prctl(cpu_env, arg1, arg2);
6078 break;
6079 #else
6080 goto unimplemented;
6081 #endif
6082 #endif
6083 #ifdef TARGET_NR_pread
6084 case TARGET_NR_pread:
6085 #ifdef TARGET_ARM
6086 if (((CPUARMState *)cpu_env)->eabi)
6087 arg4 = arg5;
6088 #endif
6089 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6090 goto efault;
6091 ret = get_errno(pread(arg1, p, arg3, arg4));
6092 unlock_user(p, arg2, ret);
6093 break;
6094 case TARGET_NR_pwrite:
6095 #ifdef TARGET_ARM
6096 if (((CPUARMState *)cpu_env)->eabi)
6097 arg4 = arg5;
6098 #endif
6099 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6100 goto efault;
6101 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6102 unlock_user(p, arg2, 0);
6103 break;
6104 #endif
6105 #ifdef TARGET_NR_pread64
6106 case TARGET_NR_pread64:
6107 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6108 goto efault;
6109 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6110 unlock_user(p, arg2, ret);
6111 break;
6112 case TARGET_NR_pwrite64:
6113 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6114 goto efault;
6115 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6116 unlock_user(p, arg2, 0);
6117 break;
6118 #endif
6119 case TARGET_NR_getcwd:
6120 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6121 goto efault;
6122 ret = get_errno(sys_getcwd1(p, arg2));
6123 unlock_user(p, arg1, ret);
6124 break;
6125 case TARGET_NR_capget:
6126 goto unimplemented;
6127 case TARGET_NR_capset:
6128 goto unimplemented;
6129 case TARGET_NR_sigaltstack:
6130 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6131 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6132 defined(TARGET_M68K)
6133 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6134 break;
6135 #else
6136 goto unimplemented;
6137 #endif
6138 case TARGET_NR_sendfile:
6139 goto unimplemented;
6140 #ifdef TARGET_NR_getpmsg
6141 case TARGET_NR_getpmsg:
6142 goto unimplemented;
6143 #endif
6144 #ifdef TARGET_NR_putpmsg
6145 case TARGET_NR_putpmsg:
6146 goto unimplemented;
6147 #endif
6148 #ifdef TARGET_NR_vfork
6149 case TARGET_NR_vfork:
6150 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6151 0, 0, 0, 0));
6152 break;
6153 #endif
6154 #ifdef TARGET_NR_ugetrlimit
6155 case TARGET_NR_ugetrlimit:
6156 {
6157 struct rlimit rlim;
6158 ret = get_errno(getrlimit(arg1, &rlim));
6159 if (!is_error(ret)) {
6160 struct target_rlimit *target_rlim;
6161 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6162 goto efault;
6163 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
6164 target_rlim->rlim_max = tswapl(rlim.rlim_max);
6165 unlock_user_struct(target_rlim, arg2, 1);
6166 }
6167 break;
6168 }
6169 #endif
6170 #ifdef TARGET_NR_truncate64
6171 case TARGET_NR_truncate64:
6172 if (!(p = lock_user_string(arg1)))
6173 goto efault;
6174 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6175 unlock_user(p, arg1, 0);
6176 break;
6177 #endif
6178 #ifdef TARGET_NR_ftruncate64
6179 case TARGET_NR_ftruncate64:
6180 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6181 break;
6182 #endif
6183 #ifdef TARGET_NR_stat64
6184 case TARGET_NR_stat64:
6185 if (!(p = lock_user_string(arg1)))
6186 goto efault;
6187 ret = get_errno(stat(path(p), &st));
6188 unlock_user(p, arg1, 0);
6189 if (!is_error(ret))
6190 ret = host_to_target_stat64(cpu_env, arg2, &st);
6191 break;
6192 #endif
6193 #ifdef TARGET_NR_lstat64
6194 case TARGET_NR_lstat64:
6195 if (!(p = lock_user_string(arg1)))
6196 goto efault;
6197 ret = get_errno(lstat(path(p), &st));
6198 unlock_user(p, arg1, 0);
6199 if (!is_error(ret))
6200 ret = host_to_target_stat64(cpu_env, arg2, &st);
6201 break;
6202 #endif
6203 #ifdef TARGET_NR_fstat64
6204 case TARGET_NR_fstat64:
6205 ret = get_errno(fstat(arg1, &st));
6206 if (!is_error(ret))
6207 ret = host_to_target_stat64(cpu_env, arg2, &st);
6208 break;
6209 #endif
6210 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6211 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6212 #ifdef TARGET_NR_fstatat64
6213 case TARGET_NR_fstatat64:
6214 #endif
6215 #ifdef TARGET_NR_newfstatat
6216 case TARGET_NR_newfstatat:
6217 #endif
6218 if (!(p = lock_user_string(arg2)))
6219 goto efault;
6220 #ifdef __NR_fstatat64
6221 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6222 #else
6223 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6224 #endif
6225 if (!is_error(ret))
6226 ret = host_to_target_stat64(cpu_env, arg3, &st);
6227 break;
6228 #endif
6229 #ifdef USE_UID16
6230 case TARGET_NR_lchown:
6231 if (!(p = lock_user_string(arg1)))
6232 goto efault;
6233 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6234 unlock_user(p, arg1, 0);
6235 break;
6236 case TARGET_NR_getuid:
6237 ret = get_errno(high2lowuid(getuid()));
6238 break;
6239 case TARGET_NR_getgid:
6240 ret = get_errno(high2lowgid(getgid()));
6241 break;
6242 case TARGET_NR_geteuid:
6243 ret = get_errno(high2lowuid(geteuid()));
6244 break;
6245 case TARGET_NR_getegid:
6246 ret = get_errno(high2lowgid(getegid()));
6247 break;
6248 case TARGET_NR_setreuid:
6249 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6250 break;
6251 case TARGET_NR_setregid:
6252 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6253 break;
6254 case TARGET_NR_getgroups:
6255 {
6256 int gidsetsize = arg1;
6257 uint16_t *target_grouplist;
6258 gid_t *grouplist;
6259 int i;
6260
6261 grouplist = alloca(gidsetsize * sizeof(gid_t));
6262 ret = get_errno(getgroups(gidsetsize, grouplist));
6263 if (gidsetsize == 0)
6264 break;
6265 if (!is_error(ret)) {
6266 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6267 if (!target_grouplist)
6268 goto efault;
6269 for(i = 0;i < ret; i++)
6270 target_grouplist[i] = tswap16(grouplist[i]);
6271 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6272 }
6273 }
6274 break;
6275 case TARGET_NR_setgroups:
6276 {
6277 int gidsetsize = arg1;
6278 uint16_t *target_grouplist;
6279 gid_t *grouplist;
6280 int i;
6281
6282 grouplist = alloca(gidsetsize * sizeof(gid_t));
6283 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6284 if (!target_grouplist) {
6285 ret = -TARGET_EFAULT;
6286 goto fail;
6287 }
6288 for(i = 0;i < gidsetsize; i++)
6289 grouplist[i] = tswap16(target_grouplist[i]);
6290 unlock_user(target_grouplist, arg2, 0);
6291 ret = get_errno(setgroups(gidsetsize, grouplist));
6292 }
6293 break;
6294 case TARGET_NR_fchown:
6295 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6296 break;
6297 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6298 case TARGET_NR_fchownat:
6299 if (!(p = lock_user_string(arg2)))
6300 goto efault;
6301 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6302 unlock_user(p, arg2, 0);
6303 break;
6304 #endif
6305 #ifdef TARGET_NR_setresuid
6306 case TARGET_NR_setresuid:
6307 ret = get_errno(setresuid(low2highuid(arg1),
6308 low2highuid(arg2),
6309 low2highuid(arg3)));
6310 break;
6311 #endif
6312 #ifdef TARGET_NR_getresuid
6313 case TARGET_NR_getresuid:
6314 {
6315 uid_t ruid, euid, suid;
6316 ret = get_errno(getresuid(&ruid, &euid, &suid));
6317 if (!is_error(ret)) {
6318 if (put_user_u16(high2lowuid(ruid), arg1)
6319 || put_user_u16(high2lowuid(euid), arg2)
6320 || put_user_u16(high2lowuid(suid), arg3))
6321 goto efault;
6322 }
6323 }
6324 break;
6325 #endif
6326 #ifdef TARGET_NR_getresgid
6327 case TARGET_NR_setresgid:
6328 ret = get_errno(setresgid(low2highgid(arg1),
6329 low2highgid(arg2),
6330 low2highgid(arg3)));
6331 break;
6332 #endif
6333 #ifdef TARGET_NR_getresgid
6334 case TARGET_NR_getresgid:
6335 {
6336 gid_t rgid, egid, sgid;
6337 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6338 if (!is_error(ret)) {
6339 if (put_user_u16(high2lowgid(rgid), arg1)
6340 || put_user_u16(high2lowgid(egid), arg2)
6341 || put_user_u16(high2lowgid(sgid), arg3))
6342 goto efault;
6343 }
6344 }
6345 break;
6346 #endif
6347 case TARGET_NR_chown:
6348 if (!(p = lock_user_string(arg1)))
6349 goto efault;
6350 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6351 unlock_user(p, arg1, 0);
6352 break;
6353 case TARGET_NR_setuid:
6354 ret = get_errno(setuid(low2highuid(arg1)));
6355 break;
6356 case TARGET_NR_setgid:
6357 ret = get_errno(setgid(low2highgid(arg1)));
6358 break;
6359 case TARGET_NR_setfsuid:
6360 ret = get_errno(setfsuid(arg1));
6361 break;
6362 case TARGET_NR_setfsgid:
6363 ret = get_errno(setfsgid(arg1));
6364 break;
6365 #endif /* USE_UID16 */
6366
6367 #ifdef TARGET_NR_lchown32
6368 case TARGET_NR_lchown32:
6369 if (!(p = lock_user_string(arg1)))
6370 goto efault;
6371 ret = get_errno(lchown(p, arg2, arg3));
6372 unlock_user(p, arg1, 0);
6373 break;
6374 #endif
6375 #ifdef TARGET_NR_getuid32
6376 case TARGET_NR_getuid32:
6377 ret = get_errno(getuid());
6378 break;
6379 #endif
6380
6381 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6382 /* Alpha specific */
6383 case TARGET_NR_getxuid:
6384 {
6385 uid_t euid;
6386 euid=geteuid();
6387 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6388 }
6389 ret = get_errno(getuid());
6390 break;
6391 #endif
6392 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6393 /* Alpha specific */
6394 case TARGET_NR_getxgid:
6395 {
6396 uid_t egid;
6397 egid=getegid();
6398 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6399 }
6400 ret = get_errno(getgid());
6401 break;
6402 #endif
6403
6404 #ifdef TARGET_NR_getgid32
6405 case TARGET_NR_getgid32:
6406 ret = get_errno(getgid());
6407 break;
6408 #endif
6409 #ifdef TARGET_NR_geteuid32
6410 case TARGET_NR_geteuid32:
6411 ret = get_errno(geteuid());
6412 break;
6413 #endif
6414 #ifdef TARGET_NR_getegid32
6415 case TARGET_NR_getegid32:
6416 ret = get_errno(getegid());
6417 break;
6418 #endif
6419 #ifdef TARGET_NR_setreuid32
6420 case TARGET_NR_setreuid32:
6421 ret = get_errno(setreuid(arg1, arg2));
6422 break;
6423 #endif
6424 #ifdef TARGET_NR_setregid32
6425 case TARGET_NR_setregid32:
6426 ret = get_errno(setregid(arg1, arg2));
6427 break;
6428 #endif
6429 #ifdef TARGET_NR_getgroups32
6430 case TARGET_NR_getgroups32:
6431 {
6432 int gidsetsize = arg1;
6433 uint32_t *target_grouplist;
6434 gid_t *grouplist;
6435 int i;
6436
6437 grouplist = alloca(gidsetsize * sizeof(gid_t));
6438 ret = get_errno(getgroups(gidsetsize, grouplist));
6439 if (gidsetsize == 0)
6440 break;
6441 if (!is_error(ret)) {
6442 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
6443 if (!target_grouplist) {
6444 ret = -TARGET_EFAULT;
6445 goto fail;
6446 }
6447 for(i = 0;i < ret; i++)
6448 target_grouplist[i] = tswap32(grouplist[i]);
6449 unlock_user(target_grouplist, arg2, gidsetsize * 4);
6450 }
6451 }
6452 break;
6453 #endif
6454 #ifdef TARGET_NR_setgroups32
6455 case TARGET_NR_setgroups32:
6456 {
6457 int gidsetsize = arg1;
6458 uint32_t *target_grouplist;
6459 gid_t *grouplist;
6460 int i;
6461
6462 grouplist = alloca(gidsetsize * sizeof(gid_t));
6463 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
6464 if (!target_grouplist) {
6465 ret = -TARGET_EFAULT;
6466 goto fail;
6467 }
6468 for(i = 0;i < gidsetsize; i++)
6469 grouplist[i] = tswap32(target_grouplist[i]);
6470 unlock_user(target_grouplist, arg2, 0);
6471 ret = get_errno(setgroups(gidsetsize, grouplist));
6472 }
6473 break;
6474 #endif
6475 #ifdef TARGET_NR_fchown32
6476 case TARGET_NR_fchown32:
6477 ret = get_errno(fchown(arg1, arg2, arg3));
6478 break;
6479 #endif
6480 #ifdef TARGET_NR_setresuid32
6481 case TARGET_NR_setresuid32:
6482 ret = get_errno(setresuid(arg1, arg2, arg3));
6483 break;
6484 #endif
6485 #ifdef TARGET_NR_getresuid32
6486 case TARGET_NR_getresuid32:
6487 {
6488 uid_t ruid, euid, suid;
6489 ret = get_errno(getresuid(&ruid, &euid, &suid));
6490 if (!is_error(ret)) {
6491 if (put_user_u32(ruid, arg1)
6492 || put_user_u32(euid, arg2)
6493 || put_user_u32(suid, arg3))
6494 goto efault;
6495 }
6496 }
6497 break;
6498 #endif
6499 #ifdef TARGET_NR_setresgid32
6500 case TARGET_NR_setresgid32:
6501 ret = get_errno(setresgid(arg1, arg2, arg3));
6502 break;
6503 #endif
6504 #ifdef TARGET_NR_getresgid32
6505 case TARGET_NR_getresgid32:
6506 {
6507 gid_t rgid, egid, sgid;
6508 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6509 if (!is_error(ret)) {
6510 if (put_user_u32(rgid, arg1)
6511 || put_user_u32(egid, arg2)
6512 || put_user_u32(sgid, arg3))
6513 goto efault;
6514 }
6515 }
6516 break;
6517 #endif
6518 #ifdef TARGET_NR_chown32
6519 case TARGET_NR_chown32:
6520 if (!(p = lock_user_string(arg1)))
6521 goto efault;
6522 ret = get_errno(chown(p, arg2, arg3));
6523 unlock_user(p, arg1, 0);
6524 break;
6525 #endif
6526 #ifdef TARGET_NR_setuid32
6527 case TARGET_NR_setuid32:
6528 ret = get_errno(setuid(arg1));
6529 break;
6530 #endif
6531 #ifdef TARGET_NR_setgid32
6532 case TARGET_NR_setgid32:
6533 ret = get_errno(setgid(arg1));
6534 break;
6535 #endif
6536 #ifdef TARGET_NR_setfsuid32
6537 case TARGET_NR_setfsuid32:
6538 ret = get_errno(setfsuid(arg1));
6539 break;
6540 #endif
6541 #ifdef TARGET_NR_setfsgid32
6542 case TARGET_NR_setfsgid32:
6543 ret = get_errno(setfsgid(arg1));
6544 break;
6545 #endif
6546
6547 case TARGET_NR_pivot_root:
6548 goto unimplemented;
6549 #ifdef TARGET_NR_mincore
6550 case TARGET_NR_mincore:
6551 {
6552 void *a;
6553 ret = -TARGET_EFAULT;
6554 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
6555 goto efault;
6556 if (!(p = lock_user_string(arg3)))
6557 goto mincore_fail;
6558 ret = get_errno(mincore(a, arg2, p));
6559 unlock_user(p, arg3, ret);
6560 mincore_fail:
6561 unlock_user(a, arg1, 0);
6562 }
6563 break;
6564 #endif
6565 #ifdef TARGET_NR_arm_fadvise64_64
6566 case TARGET_NR_arm_fadvise64_64:
6567 {
6568 /*
6569 * arm_fadvise64_64 looks like fadvise64_64 but
6570 * with different argument order
6571 */
6572 abi_long temp;
6573 temp = arg3;
6574 arg3 = arg4;
6575 arg4 = temp;
6576 }
6577 #endif
6578 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
6579 #ifdef TARGET_NR_fadvise64_64
6580 case TARGET_NR_fadvise64_64:
6581 #endif
6582 #ifdef TARGET_NR_fadvise64
6583 case TARGET_NR_fadvise64:
6584 #endif
6585 #ifdef TARGET_S390X
6586 switch (arg4) {
6587 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
6588 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
6589 case 6: arg4 = POSIX_FADV_DONTNEED; break;
6590 case 7: arg4 = POSIX_FADV_NOREUSE; break;
6591 default: break;
6592 }
6593 #endif
6594 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
6595 break;
6596 #endif
6597 #ifdef TARGET_NR_madvise
6598 case TARGET_NR_madvise:
6599 /* A straight passthrough may not be safe because qemu sometimes
6600 turns private flie-backed mappings into anonymous mappings.
6601 This will break MADV_DONTNEED.
6602 This is a hint, so ignoring and returning success is ok. */
6603 ret = get_errno(0);
6604 break;
6605 #endif
6606 #if TARGET_ABI_BITS == 32
6607 case TARGET_NR_fcntl64:
6608 {
6609 int cmd;
6610 struct flock64 fl;
6611 struct target_flock64 *target_fl;
6612 #ifdef TARGET_ARM
6613 struct target_eabi_flock64 *target_efl;
6614 #endif
6615
6616 cmd = target_to_host_fcntl_cmd(arg2);
6617 if (cmd == -TARGET_EINVAL)
6618 return cmd;
6619
6620 switch(arg2) {
6621 case TARGET_F_GETLK64:
6622 #ifdef TARGET_ARM
6623 if (((CPUARMState *)cpu_env)->eabi) {
6624 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
6625 goto efault;
6626 fl.l_type = tswap16(target_efl->l_type);
6627 fl.l_whence = tswap16(target_efl->l_whence);
6628 fl.l_start = tswap64(target_efl->l_start);
6629 fl.l_len = tswap64(target_efl->l_len);
6630 fl.l_pid = tswap32(target_efl->l_pid);
6631 unlock_user_struct(target_efl, arg3, 0);
6632 } else
6633 #endif
6634 {
6635 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
6636 goto efault;
6637 fl.l_type = tswap16(target_fl->l_type);
6638 fl.l_whence = tswap16(target_fl->l_whence);
6639 fl.l_start = tswap64(target_fl->l_start);
6640 fl.l_len = tswap64(target_fl->l_len);
6641 fl.l_pid = tswap32(target_fl->l_pid);
6642 unlock_user_struct(target_fl, arg3, 0);
6643 }
6644 ret = get_errno(fcntl(arg1, cmd, &fl));
6645 if (ret == 0) {
6646 #ifdef TARGET_ARM
6647 if (((CPUARMState *)cpu_env)->eabi) {
6648 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
6649 goto efault;
6650 target_efl->l_type = tswap16(fl.l_type);
6651 target_efl->l_whence = tswap16(fl.l_whence);
6652 target_efl->l_start = tswap64(fl.l_start);
6653 target_efl->l_len = tswap64(fl.l_len);
6654 target_efl->l_pid = tswap32(fl.l_pid);
6655 unlock_user_struct(target_efl, arg3, 1);
6656 } else
6657 #endif
6658 {
6659 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
6660 goto efault;
6661 target_fl->l_type = tswap16(fl.l_type);
6662 target_fl->l_whence = tswap16(fl.l_whence);
6663 target_fl->l_start = tswap64(fl.l_start);
6664 target_fl->l_len = tswap64(fl.l_len);
6665 target_fl->l_pid = tswap32(fl.l_pid);
6666 unlock_user_struct(target_fl, arg3, 1);
6667 }
6668 }
6669 break;
6670
6671 case TARGET_F_SETLK64:
6672 case TARGET_F_SETLKW64:
6673 #ifdef TARGET_ARM
6674 if (((CPUARMState *)cpu_env)->eabi) {
6675 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
6676 goto efault;
6677 fl.l_type = tswap16(target_efl->l_type);
6678 fl.l_whence = tswap16(target_efl->l_whence);
6679 fl.l_start = tswap64(target_efl->l_start);
6680 fl.l_len = tswap64(target_efl->l_len);
6681 fl.l_pid = tswap32(target_efl->l_pid);
6682 unlock_user_struct(target_efl, arg3, 0);
6683 } else
6684 #endif
6685 {
6686 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
6687 goto efault;
6688 fl.l_type = tswap16(target_fl->l_type);
6689 fl.l_whence = tswap16(target_fl->l_whence);
6690 fl.l_start = tswap64(target_fl->l_start);
6691 fl.l_len = tswap64(target_fl->l_len);
6692 fl.l_pid = tswap32(target_fl->l_pid);
6693 unlock_user_struct(target_fl, arg3, 0);
6694 }
6695 ret = get_errno(fcntl(arg1, cmd, &fl));
6696 break;
6697 default:
6698 ret = do_fcntl(arg1, arg2, arg3);
6699 break;
6700 }
6701 break;
6702 }
6703 #endif
6704 #ifdef TARGET_NR_cacheflush
6705 case TARGET_NR_cacheflush:
6706 /* self-modifying code is handled automatically, so nothing needed */
6707 ret = 0;
6708 break;
6709 #endif
6710 #ifdef TARGET_NR_security
6711 case TARGET_NR_security:
6712 goto unimplemented;
6713 #endif
6714 #ifdef TARGET_NR_getpagesize
6715 case TARGET_NR_getpagesize:
6716 ret = TARGET_PAGE_SIZE;
6717 break;
6718 #endif
6719 case TARGET_NR_gettid:
6720 ret = get_errno(gettid());
6721 break;
6722 #ifdef TARGET_NR_readahead
6723 case TARGET_NR_readahead:
6724 #if TARGET_ABI_BITS == 32
6725 #ifdef TARGET_ARM
6726 if (((CPUARMState *)cpu_env)->eabi)
6727 {
6728 arg2 = arg3;
6729 arg3 = arg4;
6730 arg4 = arg5;
6731 }
6732 #endif
6733 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
6734 #else
6735 ret = get_errno(readahead(arg1, arg2, arg3));
6736 #endif
6737 break;
6738 #endif
6739 #ifdef TARGET_NR_setxattr
6740 case TARGET_NR_setxattr:
6741 case TARGET_NR_lsetxattr:
6742 case TARGET_NR_fsetxattr:
6743 case TARGET_NR_getxattr:
6744 case TARGET_NR_lgetxattr:
6745 case TARGET_NR_fgetxattr:
6746 case TARGET_NR_listxattr:
6747 case TARGET_NR_llistxattr:
6748 case TARGET_NR_flistxattr:
6749 case TARGET_NR_removexattr:
6750 case TARGET_NR_lremovexattr:
6751 case TARGET_NR_fremovexattr:
6752 ret = -TARGET_EOPNOTSUPP;
6753 break;
6754 #endif
6755 #ifdef TARGET_NR_set_thread_area
6756 case TARGET_NR_set_thread_area:
6757 #if defined(TARGET_MIPS)
6758 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
6759 ret = 0;
6760 break;
6761 #elif defined(TARGET_CRIS)
6762 if (arg1 & 0xff)
6763 ret = -TARGET_EINVAL;
6764 else {
6765 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
6766 ret = 0;
6767 }
6768 break;
6769 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
6770 ret = do_set_thread_area(cpu_env, arg1);
6771 break;
6772 #else
6773 goto unimplemented_nowarn;
6774 #endif
6775 #endif
6776 #ifdef TARGET_NR_get_thread_area
6777 case TARGET_NR_get_thread_area:
6778 #if defined(TARGET_I386) && defined(TARGET_ABI32)
6779 ret = do_get_thread_area(cpu_env, arg1);
6780 #else
6781 goto unimplemented_nowarn;
6782 #endif
6783 #endif
6784 #ifdef TARGET_NR_getdomainname
6785 case TARGET_NR_getdomainname:
6786 goto unimplemented_nowarn;
6787 #endif
6788
6789 #ifdef TARGET_NR_clock_gettime
6790 case TARGET_NR_clock_gettime:
6791 {
6792 struct timespec ts;
6793 ret = get_errno(clock_gettime(arg1, &ts));
6794 if (!is_error(ret)) {
6795 host_to_target_timespec(arg2, &ts);
6796 }
6797 break;
6798 }
6799 #endif
6800 #ifdef TARGET_NR_clock_getres
6801 case TARGET_NR_clock_getres:
6802 {
6803 struct timespec ts;
6804 ret = get_errno(clock_getres(arg1, &ts));
6805 if (!is_error(ret)) {
6806 host_to_target_timespec(arg2, &ts);
6807 }
6808 break;
6809 }
6810 #endif
6811 #ifdef TARGET_NR_clock_nanosleep
6812 case TARGET_NR_clock_nanosleep:
6813 {
6814 struct timespec ts;
6815 target_to_host_timespec(&ts, arg3);
6816 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
6817 if (arg4)
6818 host_to_target_timespec(arg4, &ts);
6819 break;
6820 }
6821 #endif
6822
6823 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
6824 case TARGET_NR_set_tid_address:
6825 ret = get_errno(set_tid_address((int *)g2h(arg1)));
6826 break;
6827 #endif
6828
6829 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
6830 case TARGET_NR_tkill:
6831 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
6832 break;
6833 #endif
6834
6835 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
6836 case TARGET_NR_tgkill:
6837 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
6838 target_to_host_signal(arg3)));
6839 break;
6840 #endif
6841
6842 #ifdef TARGET_NR_set_robust_list
6843 case TARGET_NR_set_robust_list:
6844 goto unimplemented_nowarn;
6845 #endif
6846
6847 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
6848 case TARGET_NR_utimensat:
6849 {
6850 struct timespec *tsp, ts[2];
6851 if (!arg3) {
6852 tsp = NULL;
6853 } else {
6854 target_to_host_timespec(ts, arg3);
6855 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
6856 tsp = ts;
6857 }
6858 if (!arg2)
6859 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
6860 else {
6861 if (!(p = lock_user_string(arg2))) {
6862 ret = -TARGET_EFAULT;
6863 goto fail;
6864 }
6865 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
6866 unlock_user(p, arg2, 0);
6867 }
6868 }
6869 break;
6870 #endif
6871 #if defined(CONFIG_USE_NPTL)
6872 case TARGET_NR_futex:
6873 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
6874 break;
6875 #endif
6876 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
6877 case TARGET_NR_inotify_init:
6878 ret = get_errno(sys_inotify_init());
6879 break;
6880 #endif
6881 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
6882 case TARGET_NR_inotify_add_watch:
6883 p = lock_user_string(arg2);
6884 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
6885 unlock_user(p, arg2, 0);
6886 break;
6887 #endif
6888 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
6889 case TARGET_NR_inotify_rm_watch:
6890 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
6891 break;
6892 #endif
6893
6894 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
6895 case TARGET_NR_mq_open:
6896 {
6897 struct mq_attr posix_mq_attr;
6898
6899 p = lock_user_string(arg1 - 1);
6900 if (arg4 != 0)
6901 copy_from_user_mq_attr (&posix_mq_attr, arg4);
6902 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
6903 unlock_user (p, arg1, 0);
6904 }
6905 break;
6906
6907 case TARGET_NR_mq_unlink:
6908 p = lock_user_string(arg1 - 1);
6909 ret = get_errno(mq_unlink(p));
6910 unlock_user (p, arg1, 0);
6911 break;
6912
6913 case TARGET_NR_mq_timedsend:
6914 {
6915 struct timespec ts;
6916
6917 p = lock_user (VERIFY_READ, arg2, arg3, 1);
6918 if (arg5 != 0) {
6919 target_to_host_timespec(&ts, arg5);
6920 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
6921 host_to_target_timespec(arg5, &ts);
6922 }
6923 else
6924 ret = get_errno(mq_send(arg1, p, arg3, arg4));
6925 unlock_user (p, arg2, arg3);
6926 }
6927 break;
6928
6929 case TARGET_NR_mq_timedreceive:
6930 {
6931 struct timespec ts;
6932 unsigned int prio;
6933
6934 p = lock_user (VERIFY_READ, arg2, arg3, 1);
6935 if (arg5 != 0) {
6936 target_to_host_timespec(&ts, arg5);
6937 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
6938 host_to_target_timespec(arg5, &ts);
6939 }
6940 else
6941 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
6942 unlock_user (p, arg2, arg3);
6943 if (arg4 != 0)
6944 put_user_u32(prio, arg4);
6945 }
6946 break;
6947
6948 /* Not implemented for now... */
6949 /* case TARGET_NR_mq_notify: */
6950 /* break; */
6951
6952 case TARGET_NR_mq_getsetattr:
6953 {
6954 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
6955 ret = 0;
6956 if (arg3 != 0) {
6957 ret = mq_getattr(arg1, &posix_mq_attr_out);
6958 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
6959 }
6960 if (arg2 != 0) {
6961 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
6962 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
6963 }
6964
6965 }
6966 break;
6967 #endif
6968
6969 #ifdef CONFIG_SPLICE
6970 #ifdef TARGET_NR_tee
6971 case TARGET_NR_tee:
6972 {
6973 ret = get_errno(tee(arg1,arg2,arg3,arg4));
6974 }
6975 break;
6976 #endif
6977 #ifdef TARGET_NR_splice
6978 case TARGET_NR_splice:
6979 {
6980 loff_t loff_in, loff_out;
6981 loff_t *ploff_in = NULL, *ploff_out = NULL;
6982 if(arg2) {
6983 get_user_u64(loff_in, arg2);
6984 ploff_in = &loff_in;
6985 }
6986 if(arg4) {
6987 get_user_u64(loff_out, arg2);
6988 ploff_out = &loff_out;
6989 }
6990 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
6991 }
6992 break;
6993 #endif
6994 #ifdef TARGET_NR_vmsplice
6995 case TARGET_NR_vmsplice:
6996 {
6997 int count = arg3;
6998 struct iovec *vec;
6999
7000 vec = alloca(count * sizeof(struct iovec));
7001 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
7002 goto efault;
7003 ret = get_errno(vmsplice(arg1, vec, count, arg4));
7004 unlock_iovec(vec, arg2, count, 0);
7005 }
7006 break;
7007 #endif
7008 #endif /* CONFIG_SPLICE */
7009 #ifdef CONFIG_EVENTFD
7010 #if defined(TARGET_NR_eventfd)
7011 case TARGET_NR_eventfd:
7012 ret = get_errno(eventfd(arg1, 0));
7013 break;
7014 #endif
7015 #if defined(TARGET_NR_eventfd2)
7016 case TARGET_NR_eventfd2:
7017 ret = get_errno(eventfd(arg1, arg2));
7018 break;
7019 #endif
7020 #endif /* CONFIG_EVENTFD */
7021 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
7022 case TARGET_NR_fallocate:
7023 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
7024 break;
7025 #endif
7026 default:
7027 unimplemented:
7028 gemu_log("qemu: Unsupported syscall: %d\n", num);
7029 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
7030 unimplemented_nowarn:
7031 #endif
7032 ret = -TARGET_ENOSYS;
7033 break;
7034 }
7035 fail:
7036 #ifdef DEBUG
7037 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
7038 #endif
7039 if(do_strace)
7040 print_syscall_ret(num, ret);
7041 return ret;
7042 efault:
7043 ret = -TARGET_EFAULT;
7044 goto fail;
7045 }
kraxel's qemu bits