?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
monitor: Convert do_info_version() to QObject
[qemu.git] / linux-user / syscall.c
blobbf06d14fc7227e9d8396cb15503bf1fafb91880a
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 #ifdef TARGET_NR_getppid /* not on alpha */
4750 case TARGET_NR_getppid:
4751 ret = get_errno(getppid());
4752 break;
4753 #endif
4754 case TARGET_NR_getpgrp:
4755 ret = get_errno(getpgrp());
4756 break;
4757 case TARGET_NR_setsid:
4758 ret = get_errno(setsid());
4759 break;
4760 #ifdef TARGET_NR_sigaction
4761 case TARGET_NR_sigaction:
4762 {
4763 #if !defined(TARGET_MIPS)
4764 struct target_old_sigaction *old_act;
4765 struct target_sigaction act, oact, *pact;
4766 if (arg2) {
4767 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4768 goto efault;
4769 act._sa_handler = old_act->_sa_handler;
4770 target_siginitset(&act.sa_mask, old_act->sa_mask);
4771 act.sa_flags = old_act->sa_flags;
4772 act.sa_restorer = old_act->sa_restorer;
4773 unlock_user_struct(old_act, arg2, 0);
4774 pact = &act;
4775 } else {
4776 pact = NULL;
4777 }
4778 ret = get_errno(do_sigaction(arg1, pact, &oact));
4779 if (!is_error(ret) && arg3) {
4780 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
4781 goto efault;
4782 old_act->_sa_handler = oact._sa_handler;
4783 old_act->sa_mask = oact.sa_mask.sig[0];
4784 old_act->sa_flags = oact.sa_flags;
4785 old_act->sa_restorer = oact.sa_restorer;
4786 unlock_user_struct(old_act, arg3, 1);
4787 }
4788 #else
4789 struct target_sigaction act, oact, *pact, *old_act;
4790
4791 if (arg2) {
4792 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4793 goto efault;
4794 act._sa_handler = old_act->_sa_handler;
4795 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
4796 act.sa_flags = old_act->sa_flags;
4797 unlock_user_struct(old_act, arg2, 0);
4798 pact = &act;
4799 } else {
4800 pact = NULL;
4801 }
4802
4803 ret = get_errno(do_sigaction(arg1, pact, &oact));
4804
4805 if (!is_error(ret) && arg3) {
4806 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
4807 goto efault;
4808 old_act->_sa_handler = oact._sa_handler;
4809 old_act->sa_flags = oact.sa_flags;
4810 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
4811 old_act->sa_mask.sig[1] = 0;
4812 old_act->sa_mask.sig[2] = 0;
4813 old_act->sa_mask.sig[3] = 0;
4814 unlock_user_struct(old_act, arg3, 1);
4815 }
4816 #endif
4817 }
4818 break;
4819 #endif
4820 case TARGET_NR_rt_sigaction:
4821 {
4822 struct target_sigaction *act;
4823 struct target_sigaction *oact;
4824
4825 if (arg2) {
4826 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
4827 goto efault;
4828 } else
4829 act = NULL;
4830 if (arg3) {
4831 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
4832 ret = -TARGET_EFAULT;
4833 goto rt_sigaction_fail;
4834 }
4835 } else
4836 oact = NULL;
4837 ret = get_errno(do_sigaction(arg1, act, oact));
4838 rt_sigaction_fail:
4839 if (act)
4840 unlock_user_struct(act, arg2, 0);
4841 if (oact)
4842 unlock_user_struct(oact, arg3, 1);
4843 }
4844 break;
4845 #ifdef TARGET_NR_sgetmask /* not on alpha */
4846 case TARGET_NR_sgetmask:
4847 {
4848 sigset_t cur_set;
4849 abi_ulong target_set;
4850 sigprocmask(0, NULL, &cur_set);
4851 host_to_target_old_sigset(&target_set, &cur_set);
4852 ret = target_set;
4853 }
4854 break;
4855 #endif
4856 #ifdef TARGET_NR_ssetmask /* not on alpha */
4857 case TARGET_NR_ssetmask:
4858 {
4859 sigset_t set, oset, cur_set;
4860 abi_ulong target_set = arg1;
4861 sigprocmask(0, NULL, &cur_set);
4862 target_to_host_old_sigset(&set, &target_set);
4863 sigorset(&set, &set, &cur_set);
4864 sigprocmask(SIG_SETMASK, &set, &oset);
4865 host_to_target_old_sigset(&target_set, &oset);
4866 ret = target_set;
4867 }
4868 break;
4869 #endif
4870 #ifdef TARGET_NR_sigprocmask
4871 case TARGET_NR_sigprocmask:
4872 {
4873 int how = arg1;
4874 sigset_t set, oldset, *set_ptr;
4875
4876 if (arg2) {
4877 switch(how) {
4878 case TARGET_SIG_BLOCK:
4879 how = SIG_BLOCK;
4880 break;
4881 case TARGET_SIG_UNBLOCK:
4882 how = SIG_UNBLOCK;
4883 break;
4884 case TARGET_SIG_SETMASK:
4885 how = SIG_SETMASK;
4886 break;
4887 default:
4888 ret = -TARGET_EINVAL;
4889 goto fail;
4890 }
4891 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
4892 goto efault;
4893 target_to_host_old_sigset(&set, p);
4894 unlock_user(p, arg2, 0);
4895 set_ptr = &set;
4896 } else {
4897 how = 0;
4898 set_ptr = NULL;
4899 }
4900 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
4901 if (!is_error(ret) && arg3) {
4902 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
4903 goto efault;
4904 host_to_target_old_sigset(p, &oldset);
4905 unlock_user(p, arg3, sizeof(target_sigset_t));
4906 }
4907 }
4908 break;
4909 #endif
4910 case TARGET_NR_rt_sigprocmask:
4911 {
4912 int how = arg1;
4913 sigset_t set, oldset, *set_ptr;
4914
4915 if (arg2) {
4916 switch(how) {
4917 case TARGET_SIG_BLOCK:
4918 how = SIG_BLOCK;
4919 break;
4920 case TARGET_SIG_UNBLOCK:
4921 how = SIG_UNBLOCK;
4922 break;
4923 case TARGET_SIG_SETMASK:
4924 how = SIG_SETMASK;
4925 break;
4926 default:
4927 ret = -TARGET_EINVAL;
4928 goto fail;
4929 }
4930 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
4931 goto efault;
4932 target_to_host_sigset(&set, p);
4933 unlock_user(p, arg2, 0);
4934 set_ptr = &set;
4935 } else {
4936 how = 0;
4937 set_ptr = NULL;
4938 }
4939 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
4940 if (!is_error(ret) && arg3) {
4941 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
4942 goto efault;
4943 host_to_target_sigset(p, &oldset);
4944 unlock_user(p, arg3, sizeof(target_sigset_t));
4945 }
4946 }
4947 break;
4948 #ifdef TARGET_NR_sigpending
4949 case TARGET_NR_sigpending:
4950 {
4951 sigset_t set;
4952 ret = get_errno(sigpending(&set));
4953 if (!is_error(ret)) {
4954 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
4955 goto efault;
4956 host_to_target_old_sigset(p, &set);
4957 unlock_user(p, arg1, sizeof(target_sigset_t));
4958 }
4959 }
4960 break;
4961 #endif
4962 case TARGET_NR_rt_sigpending:
4963 {
4964 sigset_t set;
4965 ret = get_errno(sigpending(&set));
4966 if (!is_error(ret)) {
4967 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
4968 goto efault;
4969 host_to_target_sigset(p, &set);
4970 unlock_user(p, arg1, sizeof(target_sigset_t));
4971 }
4972 }
4973 break;
4974 #ifdef TARGET_NR_sigsuspend
4975 case TARGET_NR_sigsuspend:
4976 {
4977 sigset_t set;
4978 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4979 goto efault;
4980 target_to_host_old_sigset(&set, p);
4981 unlock_user(p, arg1, 0);
4982 ret = get_errno(sigsuspend(&set));
4983 }
4984 break;
4985 #endif
4986 case TARGET_NR_rt_sigsuspend:
4987 {
4988 sigset_t set;
4989 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4990 goto efault;
4991 target_to_host_sigset(&set, p);
4992 unlock_user(p, arg1, 0);
4993 ret = get_errno(sigsuspend(&set));
4994 }
4995 break;
4996 case TARGET_NR_rt_sigtimedwait:
4997 {
4998 sigset_t set;
4999 struct timespec uts, *puts;
5000 siginfo_t uinfo;
5001
5002 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5003 goto efault;
5004 target_to_host_sigset(&set, p);
5005 unlock_user(p, arg1, 0);
5006 if (arg3) {
5007 puts = &uts;
5008 target_to_host_timespec(puts, arg3);
5009 } else {
5010 puts = NULL;
5011 }
5012 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5013 if (!is_error(ret) && arg2) {
5014 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5015 goto efault;
5016 host_to_target_siginfo(p, &uinfo);
5017 unlock_user(p, arg2, sizeof(target_siginfo_t));
5018 }
5019 }
5020 break;
5021 case TARGET_NR_rt_sigqueueinfo:
5022 {
5023 siginfo_t uinfo;
5024 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5025 goto efault;
5026 target_to_host_siginfo(&uinfo, p);
5027 unlock_user(p, arg1, 0);
5028 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5029 }
5030 break;
5031 #ifdef TARGET_NR_sigreturn
5032 case TARGET_NR_sigreturn:
5033 /* NOTE: ret is eax, so not transcoding must be done */
5034 ret = do_sigreturn(cpu_env);
5035 break;
5036 #endif
5037 case TARGET_NR_rt_sigreturn:
5038 /* NOTE: ret is eax, so not transcoding must be done */
5039 ret = do_rt_sigreturn(cpu_env);
5040 break;
5041 case TARGET_NR_sethostname:
5042 if (!(p = lock_user_string(arg1)))
5043 goto efault;
5044 ret = get_errno(sethostname(p, arg2));
5045 unlock_user(p, arg1, 0);
5046 break;
5047 case TARGET_NR_setrlimit:
5048 {
5049 /* XXX: convert resource ? */
5050 int resource = arg1;
5051 struct target_rlimit *target_rlim;
5052 struct rlimit rlim;
5053 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5054 goto efault;
5055 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
5056 rlim.rlim_max = tswapl(target_rlim->rlim_max);
5057 unlock_user_struct(target_rlim, arg2, 0);
5058 ret = get_errno(setrlimit(resource, &rlim));
5059 }
5060 break;
5061 case TARGET_NR_getrlimit:
5062 {
5063 /* XXX: convert resource ? */
5064 int resource = arg1;
5065 struct target_rlimit *target_rlim;
5066 struct rlimit rlim;
5067
5068 ret = get_errno(getrlimit(resource, &rlim));
5069 if (!is_error(ret)) {
5070 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5071 goto efault;
5072 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
5073 target_rlim->rlim_max = tswapl(rlim.rlim_max);
5074 unlock_user_struct(target_rlim, arg2, 1);
5075 }
5076 }
5077 break;
5078 case TARGET_NR_getrusage:
5079 {
5080 struct rusage rusage;
5081 ret = get_errno(getrusage(arg1, &rusage));
5082 if (!is_error(ret)) {
5083 host_to_target_rusage(arg2, &rusage);
5084 }
5085 }
5086 break;
5087 case TARGET_NR_gettimeofday:
5088 {
5089 struct timeval tv;
5090 ret = get_errno(gettimeofday(&tv, NULL));
5091 if (!is_error(ret)) {
5092 if (copy_to_user_timeval(arg1, &tv))
5093 goto efault;
5094 }
5095 }
5096 break;
5097 case TARGET_NR_settimeofday:
5098 {
5099 struct timeval tv;
5100 if (copy_from_user_timeval(&tv, arg1))
5101 goto efault;
5102 ret = get_errno(settimeofday(&tv, NULL));
5103 }
5104 break;
5105 #ifdef TARGET_NR_select
5106 case TARGET_NR_select:
5107 {
5108 struct target_sel_arg_struct *sel;
5109 abi_ulong inp, outp, exp, tvp;
5110 long nsel;
5111
5112 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5113 goto efault;
5114 nsel = tswapl(sel->n);
5115 inp = tswapl(sel->inp);
5116 outp = tswapl(sel->outp);
5117 exp = tswapl(sel->exp);
5118 tvp = tswapl(sel->tvp);
5119 unlock_user_struct(sel, arg1, 0);
5120 ret = do_select(nsel, inp, outp, exp, tvp);
5121 }
5122 break;
5123 #endif
5124 case TARGET_NR_symlink:
5125 {
5126 void *p2;
5127 p = lock_user_string(arg1);
5128 p2 = lock_user_string(arg2);
5129 if (!p || !p2)
5130 ret = -TARGET_EFAULT;
5131 else
5132 ret = get_errno(symlink(p, p2));
5133 unlock_user(p2, arg2, 0);
5134 unlock_user(p, arg1, 0);
5135 }
5136 break;
5137 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5138 case TARGET_NR_symlinkat:
5139 {
5140 void *p2;
5141 p = lock_user_string(arg1);
5142 p2 = lock_user_string(arg3);
5143 if (!p || !p2)
5144 ret = -TARGET_EFAULT;
5145 else
5146 ret = get_errno(sys_symlinkat(p, arg2, p2));
5147 unlock_user(p2, arg3, 0);
5148 unlock_user(p, arg1, 0);
5149 }
5150 break;
5151 #endif
5152 #ifdef TARGET_NR_oldlstat
5153 case TARGET_NR_oldlstat:
5154 goto unimplemented;
5155 #endif
5156 case TARGET_NR_readlink:
5157 {
5158 void *p2, *temp;
5159 p = lock_user_string(arg1);
5160 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5161 if (!p || !p2)
5162 ret = -TARGET_EFAULT;
5163 else {
5164 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5165 char real[PATH_MAX];
5166 temp = realpath(exec_path,real);
5167 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5168 snprintf((char *)p2, arg3, "%s", real);
5169 }
5170 else
5171 ret = get_errno(readlink(path(p), p2, arg3));
5172 }
5173 unlock_user(p2, arg2, ret);
5174 unlock_user(p, arg1, 0);
5175 }
5176 break;
5177 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5178 case TARGET_NR_readlinkat:
5179 {
5180 void *p2;
5181 p = lock_user_string(arg2);
5182 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5183 if (!p || !p2)
5184 ret = -TARGET_EFAULT;
5185 else
5186 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5187 unlock_user(p2, arg3, ret);
5188 unlock_user(p, arg2, 0);
5189 }
5190 break;
5191 #endif
5192 #ifdef TARGET_NR_uselib
5193 case TARGET_NR_uselib:
5194 goto unimplemented;
5195 #endif
5196 #ifdef TARGET_NR_swapon
5197 case TARGET_NR_swapon:
5198 if (!(p = lock_user_string(arg1)))
5199 goto efault;
5200 ret = get_errno(swapon(p, arg2));
5201 unlock_user(p, arg1, 0);
5202 break;
5203 #endif
5204 case TARGET_NR_reboot:
5205 goto unimplemented;
5206 #ifdef TARGET_NR_readdir
5207 case TARGET_NR_readdir:
5208 goto unimplemented;
5209 #endif
5210 #ifdef TARGET_NR_mmap
5211 case TARGET_NR_mmap:
5212 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5213 {
5214 abi_ulong *v;
5215 abi_ulong v1, v2, v3, v4, v5, v6;
5216 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5217 goto efault;
5218 v1 = tswapl(v[0]);
5219 v2 = tswapl(v[1]);
5220 v3 = tswapl(v[2]);
5221 v4 = tswapl(v[3]);
5222 v5 = tswapl(v[4]);
5223 v6 = tswapl(v[5]);
5224 unlock_user(v, arg1, 0);
5225 ret = get_errno(target_mmap(v1, v2, v3,
5226 target_to_host_bitmask(v4, mmap_flags_tbl),
5227 v5, v6));
5228 }
5229 #else
5230 ret = get_errno(target_mmap(arg1, arg2, arg3,
5231 target_to_host_bitmask(arg4, mmap_flags_tbl),
5232 arg5,
5233 arg6));
5234 #endif
5235 break;
5236 #endif
5237 #ifdef TARGET_NR_mmap2
5238 case TARGET_NR_mmap2:
5239 #ifndef MMAP_SHIFT
5240 #define MMAP_SHIFT 12
5241 #endif
5242 ret = get_errno(target_mmap(arg1, arg2, arg3,
5243 target_to_host_bitmask(arg4, mmap_flags_tbl),
5244 arg5,
5245 arg6 << MMAP_SHIFT));
5246 break;
5247 #endif
5248 case TARGET_NR_munmap:
5249 ret = get_errno(target_munmap(arg1, arg2));
5250 break;
5251 case TARGET_NR_mprotect:
5252 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5253 break;
5254 #ifdef TARGET_NR_mremap
5255 case TARGET_NR_mremap:
5256 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5257 break;
5258 #endif
5259 /* ??? msync/mlock/munlock are broken for softmmu. */
5260 #ifdef TARGET_NR_msync
5261 case TARGET_NR_msync:
5262 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5263 break;
5264 #endif
5265 #ifdef TARGET_NR_mlock
5266 case TARGET_NR_mlock:
5267 ret = get_errno(mlock(g2h(arg1), arg2));
5268 break;
5269 #endif
5270 #ifdef TARGET_NR_munlock
5271 case TARGET_NR_munlock:
5272 ret = get_errno(munlock(g2h(arg1), arg2));
5273 break;
5274 #endif
5275 #ifdef TARGET_NR_mlockall
5276 case TARGET_NR_mlockall:
5277 ret = get_errno(mlockall(arg1));
5278 break;
5279 #endif
5280 #ifdef TARGET_NR_munlockall
5281 case TARGET_NR_munlockall:
5282 ret = get_errno(munlockall());
5283 break;
5284 #endif
5285 case TARGET_NR_truncate:
5286 if (!(p = lock_user_string(arg1)))
5287 goto efault;
5288 ret = get_errno(truncate(p, arg2));
5289 unlock_user(p, arg1, 0);
5290 break;
5291 case TARGET_NR_ftruncate:
5292 ret = get_errno(ftruncate(arg1, arg2));
5293 break;
5294 case TARGET_NR_fchmod:
5295 ret = get_errno(fchmod(arg1, arg2));
5296 break;
5297 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5298 case TARGET_NR_fchmodat:
5299 if (!(p = lock_user_string(arg2)))
5300 goto efault;
5301 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5302 unlock_user(p, arg2, 0);
5303 break;
5304 #endif
5305 case TARGET_NR_getpriority:
5306 /* libc does special remapping of the return value of
5307 * sys_getpriority() so it's just easiest to call
5308 * sys_getpriority() directly rather than through libc. */
5309 ret = sys_getpriority(arg1, arg2);
5310 break;
5311 case TARGET_NR_setpriority:
5312 ret = get_errno(setpriority(arg1, arg2, arg3));
5313 break;
5314 #ifdef TARGET_NR_profil
5315 case TARGET_NR_profil:
5316 goto unimplemented;
5317 #endif
5318 case TARGET_NR_statfs:
5319 if (!(p = lock_user_string(arg1)))
5320 goto efault;
5321 ret = get_errno(statfs(path(p), &stfs));
5322 unlock_user(p, arg1, 0);
5323 convert_statfs:
5324 if (!is_error(ret)) {
5325 struct target_statfs *target_stfs;
5326
5327 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5328 goto efault;
5329 __put_user(stfs.f_type, &target_stfs->f_type);
5330 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5331 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5332 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5333 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5334 __put_user(stfs.f_files, &target_stfs->f_files);
5335 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5336 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5337 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5338 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5339 unlock_user_struct(target_stfs, arg2, 1);
5340 }
5341 break;
5342 case TARGET_NR_fstatfs:
5343 ret = get_errno(fstatfs(arg1, &stfs));
5344 goto convert_statfs;
5345 #ifdef TARGET_NR_statfs64
5346 case TARGET_NR_statfs64:
5347 if (!(p = lock_user_string(arg1)))
5348 goto efault;
5349 ret = get_errno(statfs(path(p), &stfs));
5350 unlock_user(p, arg1, 0);
5351 convert_statfs64:
5352 if (!is_error(ret)) {
5353 struct target_statfs64 *target_stfs;
5354
5355 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5356 goto efault;
5357 __put_user(stfs.f_type, &target_stfs->f_type);
5358 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5359 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5360 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5361 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5362 __put_user(stfs.f_files, &target_stfs->f_files);
5363 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5364 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5365 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5366 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5367 unlock_user_struct(target_stfs, arg3, 1);
5368 }
5369 break;
5370 case TARGET_NR_fstatfs64:
5371 ret = get_errno(fstatfs(arg1, &stfs));
5372 goto convert_statfs64;
5373 #endif
5374 #ifdef TARGET_NR_ioperm
5375 case TARGET_NR_ioperm:
5376 goto unimplemented;
5377 #endif
5378 #ifdef TARGET_NR_socketcall
5379 case TARGET_NR_socketcall:
5380 ret = do_socketcall(arg1, arg2);
5381 break;
5382 #endif
5383 #ifdef TARGET_NR_accept
5384 case TARGET_NR_accept:
5385 ret = do_accept(arg1, arg2, arg3);
5386 break;
5387 #endif
5388 #ifdef TARGET_NR_bind
5389 case TARGET_NR_bind:
5390 ret = do_bind(arg1, arg2, arg3);
5391 break;
5392 #endif
5393 #ifdef TARGET_NR_connect
5394 case TARGET_NR_connect:
5395 ret = do_connect(arg1, arg2, arg3);
5396 break;
5397 #endif
5398 #ifdef TARGET_NR_getpeername
5399 case TARGET_NR_getpeername:
5400 ret = do_getpeername(arg1, arg2, arg3);
5401 break;
5402 #endif
5403 #ifdef TARGET_NR_getsockname
5404 case TARGET_NR_getsockname:
5405 ret = do_getsockname(arg1, arg2, arg3);
5406 break;
5407 #endif
5408 #ifdef TARGET_NR_getsockopt
5409 case TARGET_NR_getsockopt:
5410 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5411 break;
5412 #endif
5413 #ifdef TARGET_NR_listen
5414 case TARGET_NR_listen:
5415 ret = get_errno(listen(arg1, arg2));
5416 break;
5417 #endif
5418 #ifdef TARGET_NR_recv
5419 case TARGET_NR_recv:
5420 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5421 break;
5422 #endif
5423 #ifdef TARGET_NR_recvfrom
5424 case TARGET_NR_recvfrom:
5425 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5426 break;
5427 #endif
5428 #ifdef TARGET_NR_recvmsg
5429 case TARGET_NR_recvmsg:
5430 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5431 break;
5432 #endif
5433 #ifdef TARGET_NR_send
5434 case TARGET_NR_send:
5435 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5436 break;
5437 #endif
5438 #ifdef TARGET_NR_sendmsg
5439 case TARGET_NR_sendmsg:
5440 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5441 break;
5442 #endif
5443 #ifdef TARGET_NR_sendto
5444 case TARGET_NR_sendto:
5445 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5446 break;
5447 #endif
5448 #ifdef TARGET_NR_shutdown
5449 case TARGET_NR_shutdown:
5450 ret = get_errno(shutdown(arg1, arg2));
5451 break;
5452 #endif
5453 #ifdef TARGET_NR_socket
5454 case TARGET_NR_socket:
5455 ret = do_socket(arg1, arg2, arg3);
5456 break;
5457 #endif
5458 #ifdef TARGET_NR_socketpair
5459 case TARGET_NR_socketpair:
5460 ret = do_socketpair(arg1, arg2, arg3, arg4);
5461 break;
5462 #endif
5463 #ifdef TARGET_NR_setsockopt
5464 case TARGET_NR_setsockopt:
5465 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5466 break;
5467 #endif
5468
5469 case TARGET_NR_syslog:
5470 if (!(p = lock_user_string(arg2)))
5471 goto efault;
5472 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5473 unlock_user(p, arg2, 0);
5474 break;
5475
5476 case TARGET_NR_setitimer:
5477 {
5478 struct itimerval value, ovalue, *pvalue;
5479
5480 if (arg2) {
5481 pvalue = &value;
5482 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5483 || copy_from_user_timeval(&pvalue->it_value,
5484 arg2 + sizeof(struct target_timeval)))
5485 goto efault;
5486 } else {
5487 pvalue = NULL;
5488 }
5489 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5490 if (!is_error(ret) && arg3) {
5491 if (copy_to_user_timeval(arg3,
5492 &ovalue.it_interval)
5493 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5494 &ovalue.it_value))
5495 goto efault;
5496 }
5497 }
5498 break;
5499 case TARGET_NR_getitimer:
5500 {
5501 struct itimerval value;
5502
5503 ret = get_errno(getitimer(arg1, &value));
5504 if (!is_error(ret) && arg2) {
5505 if (copy_to_user_timeval(arg2,
5506 &value.it_interval)
5507 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5508 &value.it_value))
5509 goto efault;
5510 }
5511 }
5512 break;
5513 case TARGET_NR_stat:
5514 if (!(p = lock_user_string(arg1)))
5515 goto efault;
5516 ret = get_errno(stat(path(p), &st));
5517 unlock_user(p, arg1, 0);
5518 goto do_stat;
5519 case TARGET_NR_lstat:
5520 if (!(p = lock_user_string(arg1)))
5521 goto efault;
5522 ret = get_errno(lstat(path(p), &st));
5523 unlock_user(p, arg1, 0);
5524 goto do_stat;
5525 case TARGET_NR_fstat:
5526 {
5527 ret = get_errno(fstat(arg1, &st));
5528 do_stat:
5529 if (!is_error(ret)) {
5530 struct target_stat *target_st;
5531
5532 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5533 goto efault;
5534 memset(target_st, 0, sizeof(*target_st));
5535 __put_user(st.st_dev, &target_st->st_dev);
5536 __put_user(st.st_ino, &target_st->st_ino);
5537 __put_user(st.st_mode, &target_st->st_mode);
5538 __put_user(st.st_uid, &target_st->st_uid);
5539 __put_user(st.st_gid, &target_st->st_gid);
5540 __put_user(st.st_nlink, &target_st->st_nlink);
5541 __put_user(st.st_rdev, &target_st->st_rdev);
5542 __put_user(st.st_size, &target_st->st_size);
5543 __put_user(st.st_blksize, &target_st->st_blksize);
5544 __put_user(st.st_blocks, &target_st->st_blocks);
5545 __put_user(st.st_atime, &target_st->target_st_atime);
5546 __put_user(st.st_mtime, &target_st->target_st_mtime);
5547 __put_user(st.st_ctime, &target_st->target_st_ctime);
5548 unlock_user_struct(target_st, arg2, 1);
5549 }
5550 }
5551 break;
5552 #ifdef TARGET_NR_olduname
5553 case TARGET_NR_olduname:
5554 goto unimplemented;
5555 #endif
5556 #ifdef TARGET_NR_iopl
5557 case TARGET_NR_iopl:
5558 goto unimplemented;
5559 #endif
5560 case TARGET_NR_vhangup:
5561 ret = get_errno(vhangup());
5562 break;
5563 #ifdef TARGET_NR_idle
5564 case TARGET_NR_idle:
5565 goto unimplemented;
5566 #endif
5567 #ifdef TARGET_NR_syscall
5568 case TARGET_NR_syscall:
5569 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5570 break;
5571 #endif
5572 case TARGET_NR_wait4:
5573 {
5574 int status;
5575 abi_long status_ptr = arg2;
5576 struct rusage rusage, *rusage_ptr;
5577 abi_ulong target_rusage = arg4;
5578 if (target_rusage)
5579 rusage_ptr = &rusage;
5580 else
5581 rusage_ptr = NULL;
5582 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5583 if (!is_error(ret)) {
5584 if (status_ptr) {
5585 status = host_to_target_waitstatus(status);
5586 if (put_user_s32(status, status_ptr))
5587 goto efault;
5588 }
5589 if (target_rusage)
5590 host_to_target_rusage(target_rusage, &rusage);
5591 }
5592 }
5593 break;
5594 #ifdef TARGET_NR_swapoff
5595 case TARGET_NR_swapoff:
5596 if (!(p = lock_user_string(arg1)))
5597 goto efault;
5598 ret = get_errno(swapoff(p));
5599 unlock_user(p, arg1, 0);
5600 break;
5601 #endif
5602 case TARGET_NR_sysinfo:
5603 {
5604 struct target_sysinfo *target_value;
5605 struct sysinfo value;
5606 ret = get_errno(sysinfo(&value));
5607 if (!is_error(ret) && arg1)
5608 {
5609 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5610 goto efault;
5611 __put_user(value.uptime, &target_value->uptime);
5612 __put_user(value.loads[0], &target_value->loads[0]);
5613 __put_user(value.loads[1], &target_value->loads[1]);
5614 __put_user(value.loads[2], &target_value->loads[2]);
5615 __put_user(value.totalram, &target_value->totalram);
5616 __put_user(value.freeram, &target_value->freeram);
5617 __put_user(value.sharedram, &target_value->sharedram);
5618 __put_user(value.bufferram, &target_value->bufferram);
5619 __put_user(value.totalswap, &target_value->totalswap);
5620 __put_user(value.freeswap, &target_value->freeswap);
5621 __put_user(value.procs, &target_value->procs);
5622 __put_user(value.totalhigh, &target_value->totalhigh);
5623 __put_user(value.freehigh, &target_value->freehigh);
5624 __put_user(value.mem_unit, &target_value->mem_unit);
5625 unlock_user_struct(target_value, arg1, 1);
5626 }
5627 }
5628 break;
5629 #ifdef TARGET_NR_ipc
5630 case TARGET_NR_ipc:
5631 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5632 break;
5633 #endif
5634 #ifdef TARGET_NR_semget
5635 case TARGET_NR_semget:
5636 ret = get_errno(semget(arg1, arg2, arg3));
5637 break;
5638 #endif
5639 #ifdef TARGET_NR_semop
5640 case TARGET_NR_semop:
5641 ret = get_errno(do_semop(arg1, arg2, arg3));
5642 break;
5643 #endif
5644 #ifdef TARGET_NR_semctl
5645 case TARGET_NR_semctl:
5646 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5647 break;
5648 #endif
5649 #ifdef TARGET_NR_msgctl
5650 case TARGET_NR_msgctl:
5651 ret = do_msgctl(arg1, arg2, arg3);
5652 break;
5653 #endif
5654 #ifdef TARGET_NR_msgget
5655 case TARGET_NR_msgget:
5656 ret = get_errno(msgget(arg1, arg2));
5657 break;
5658 #endif
5659 #ifdef TARGET_NR_msgrcv
5660 case TARGET_NR_msgrcv:
5661 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
5662 break;
5663 #endif
5664 #ifdef TARGET_NR_msgsnd
5665 case TARGET_NR_msgsnd:
5666 ret = do_msgsnd(arg1, arg2, arg3, arg4);
5667 break;
5668 #endif
5669 #ifdef TARGET_NR_shmget
5670 case TARGET_NR_shmget:
5671 ret = get_errno(shmget(arg1, arg2, arg3));
5672 break;
5673 #endif
5674 #ifdef TARGET_NR_shmctl
5675 case TARGET_NR_shmctl:
5676 ret = do_shmctl(arg1, arg2, arg3);
5677 break;
5678 #endif
5679 #ifdef TARGET_NR_shmat
5680 case TARGET_NR_shmat:
5681 ret = do_shmat(arg1, arg2, arg3);
5682 break;
5683 #endif
5684 #ifdef TARGET_NR_shmdt
5685 case TARGET_NR_shmdt:
5686 ret = do_shmdt(arg1);
5687 break;
5688 #endif
5689 case TARGET_NR_fsync:
5690 ret = get_errno(fsync(arg1));
5691 break;
5692 case TARGET_NR_clone:
5693 #if defined(TARGET_SH4)
5694 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
5695 #elif defined(TARGET_CRIS)
5696 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
5697 #else
5698 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
5699 #endif
5700 break;
5701 #ifdef __NR_exit_group
5702 /* new thread calls */
5703 case TARGET_NR_exit_group:
5704 #ifdef TARGET_GPROF
5705 _mcleanup();
5706 #endif
5707 gdb_exit(cpu_env, arg1);
5708 ret = get_errno(exit_group(arg1));
5709 break;
5710 #endif
5711 case TARGET_NR_setdomainname:
5712 if (!(p = lock_user_string(arg1)))
5713 goto efault;
5714 ret = get_errno(setdomainname(p, arg2));
5715 unlock_user(p, arg1, 0);
5716 break;
5717 case TARGET_NR_uname:
5718 /* no need to transcode because we use the linux syscall */
5719 {
5720 struct new_utsname * buf;
5721
5722 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
5723 goto efault;
5724 ret = get_errno(sys_uname(buf));
5725 if (!is_error(ret)) {
5726 /* Overrite the native machine name with whatever is being
5727 emulated. */
5728 strcpy (buf->machine, UNAME_MACHINE);
5729 /* Allow the user to override the reported release. */
5730 if (qemu_uname_release && *qemu_uname_release)
5731 strcpy (buf->release, qemu_uname_release);
5732 }
5733 unlock_user_struct(buf, arg1, 1);
5734 }
5735 break;
5736 #ifdef TARGET_I386
5737 case TARGET_NR_modify_ldt:
5738 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
5739 break;
5740 #if !defined(TARGET_X86_64)
5741 case TARGET_NR_vm86old:
5742 goto unimplemented;
5743 case TARGET_NR_vm86:
5744 ret = do_vm86(cpu_env, arg1, arg2);
5745 break;
5746 #endif
5747 #endif
5748 case TARGET_NR_adjtimex:
5749 goto unimplemented;
5750 #ifdef TARGET_NR_create_module
5751 case TARGET_NR_create_module:
5752 #endif
5753 case TARGET_NR_init_module:
5754 case TARGET_NR_delete_module:
5755 #ifdef TARGET_NR_get_kernel_syms
5756 case TARGET_NR_get_kernel_syms:
5757 #endif
5758 goto unimplemented;
5759 case TARGET_NR_quotactl:
5760 goto unimplemented;
5761 case TARGET_NR_getpgid:
5762 ret = get_errno(getpgid(arg1));
5763 break;
5764 case TARGET_NR_fchdir:
5765 ret = get_errno(fchdir(arg1));
5766 break;
5767 #ifdef TARGET_NR_bdflush /* not on x86_64 */
5768 case TARGET_NR_bdflush:
5769 goto unimplemented;
5770 #endif
5771 #ifdef TARGET_NR_sysfs
5772 case TARGET_NR_sysfs:
5773 goto unimplemented;
5774 #endif
5775 case TARGET_NR_personality:
5776 ret = get_errno(personality(arg1));
5777 break;
5778 #ifdef TARGET_NR_afs_syscall
5779 case TARGET_NR_afs_syscall:
5780 goto unimplemented;
5781 #endif
5782 #ifdef TARGET_NR__llseek /* Not on alpha */
5783 case TARGET_NR__llseek:
5784 {
5785 #if defined (__x86_64__)
5786 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
5787 if (put_user_s64(ret, arg4))
5788 goto efault;
5789 #else
5790 int64_t res;
5791 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
5792 if (put_user_s64(res, arg4))
5793 goto efault;
5794 #endif
5795 }
5796 break;
5797 #endif
5798 case TARGET_NR_getdents:
5799 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
5800 {
5801 struct target_dirent *target_dirp;
5802 struct linux_dirent *dirp;
5803 abi_long count = arg3;
5804
5805 dirp = malloc(count);
5806 if (!dirp) {
5807 ret = -TARGET_ENOMEM;
5808 goto fail;
5809 }
5810
5811 ret = get_errno(sys_getdents(arg1, dirp, count));
5812 if (!is_error(ret)) {
5813 struct linux_dirent *de;
5814 struct target_dirent *tde;
5815 int len = ret;
5816 int reclen, treclen;
5817 int count1, tnamelen;
5818
5819 count1 = 0;
5820 de = dirp;
5821 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5822 goto efault;
5823 tde = target_dirp;
5824 while (len > 0) {
5825 reclen = de->d_reclen;
5826 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
5827 tde->d_reclen = tswap16(treclen);
5828 tde->d_ino = tswapl(de->d_ino);
5829 tde->d_off = tswapl(de->d_off);
5830 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
5831 if (tnamelen > 256)
5832 tnamelen = 256;
5833 /* XXX: may not be correct */
5834 pstrcpy(tde->d_name, tnamelen, de->d_name);
5835 de = (struct linux_dirent *)((char *)de + reclen);
5836 len -= reclen;
5837 tde = (struct target_dirent *)((char *)tde + treclen);
5838 count1 += treclen;
5839 }
5840 ret = count1;
5841 unlock_user(target_dirp, arg2, ret);
5842 }
5843 free(dirp);
5844 }
5845 #else
5846 {
5847 struct linux_dirent *dirp;
5848 abi_long count = arg3;
5849
5850 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5851 goto efault;
5852 ret = get_errno(sys_getdents(arg1, dirp, count));
5853 if (!is_error(ret)) {
5854 struct linux_dirent *de;
5855 int len = ret;
5856 int reclen;
5857 de = dirp;
5858 while (len > 0) {
5859 reclen = de->d_reclen;
5860 if (reclen > len)
5861 break;
5862 de->d_reclen = tswap16(reclen);
5863 tswapls(&de->d_ino);
5864 tswapls(&de->d_off);
5865 de = (struct linux_dirent *)((char *)de + reclen);
5866 len -= reclen;
5867 }
5868 }
5869 unlock_user(dirp, arg2, ret);
5870 }
5871 #endif
5872 break;
5873 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
5874 case TARGET_NR_getdents64:
5875 {
5876 struct linux_dirent64 *dirp;
5877 abi_long count = arg3;
5878 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5879 goto efault;
5880 ret = get_errno(sys_getdents64(arg1, dirp, count));
5881 if (!is_error(ret)) {
5882 struct linux_dirent64 *de;
5883 int len = ret;
5884 int reclen;
5885 de = dirp;
5886 while (len > 0) {
5887 reclen = de->d_reclen;
5888 if (reclen > len)
5889 break;
5890 de->d_reclen = tswap16(reclen);
5891 tswap64s((uint64_t *)&de->d_ino);
5892 tswap64s((uint64_t *)&de->d_off);
5893 de = (struct linux_dirent64 *)((char *)de + reclen);
5894 len -= reclen;
5895 }
5896 }
5897 unlock_user(dirp, arg2, ret);
5898 }
5899 break;
5900 #endif /* TARGET_NR_getdents64 */
5901 #ifdef TARGET_NR__newselect
5902 case TARGET_NR__newselect:
5903 ret = do_select(arg1, arg2, arg3, arg4, arg5);
5904 break;
5905 #endif
5906 #ifdef TARGET_NR_poll
5907 case TARGET_NR_poll:
5908 {
5909 struct target_pollfd *target_pfd;
5910 unsigned int nfds = arg2;
5911 int timeout = arg3;
5912 struct pollfd *pfd;
5913 unsigned int i;
5914
5915 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
5916 if (!target_pfd)
5917 goto efault;
5918 pfd = alloca(sizeof(struct pollfd) * nfds);
5919 for(i = 0; i < nfds; i++) {
5920 pfd[i].fd = tswap32(target_pfd[i].fd);
5921 pfd[i].events = tswap16(target_pfd[i].events);
5922 }
5923 ret = get_errno(poll(pfd, nfds, timeout));
5924 if (!is_error(ret)) {
5925 for(i = 0; i < nfds; i++) {
5926 target_pfd[i].revents = tswap16(pfd[i].revents);
5927 }
5928 ret += nfds * (sizeof(struct target_pollfd)
5929 - sizeof(struct pollfd));
5930 }
5931 unlock_user(target_pfd, arg1, ret);
5932 }
5933 break;
5934 #endif
5935 case TARGET_NR_flock:
5936 /* NOTE: the flock constant seems to be the same for every
5937 Linux platform */
5938 ret = get_errno(flock(arg1, arg2));
5939 break;
5940 case TARGET_NR_readv:
5941 {
5942 int count = arg3;
5943 struct iovec *vec;
5944
5945 vec = alloca(count * sizeof(struct iovec));
5946 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
5947 goto efault;
5948 ret = get_errno(readv(arg1, vec, count));
5949 unlock_iovec(vec, arg2, count, 1);
5950 }
5951 break;
5952 case TARGET_NR_writev:
5953 {
5954 int count = arg3;
5955 struct iovec *vec;
5956
5957 vec = alloca(count * sizeof(struct iovec));
5958 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
5959 goto efault;
5960 ret = get_errno(writev(arg1, vec, count));
5961 unlock_iovec(vec, arg2, count, 0);
5962 }
5963 break;
5964 case TARGET_NR_getsid:
5965 ret = get_errno(getsid(arg1));
5966 break;
5967 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
5968 case TARGET_NR_fdatasync:
5969 ret = get_errno(fdatasync(arg1));
5970 break;
5971 #endif
5972 case TARGET_NR__sysctl:
5973 /* We don't implement this, but ENOTDIR is always a safe
5974 return value. */
5975 ret = -TARGET_ENOTDIR;
5976 break;
5977 case TARGET_NR_sched_setparam:
5978 {
5979 struct sched_param *target_schp;
5980 struct sched_param schp;
5981
5982 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
5983 goto efault;
5984 schp.sched_priority = tswap32(target_schp->sched_priority);
5985 unlock_user_struct(target_schp, arg2, 0);
5986 ret = get_errno(sched_setparam(arg1, &schp));
5987 }
5988 break;
5989 case TARGET_NR_sched_getparam:
5990 {
5991 struct sched_param *target_schp;
5992 struct sched_param schp;
5993 ret = get_errno(sched_getparam(arg1, &schp));
5994 if (!is_error(ret)) {
5995 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
5996 goto efault;
5997 target_schp->sched_priority = tswap32(schp.sched_priority);
5998 unlock_user_struct(target_schp, arg2, 1);
5999 }
6000 }
6001 break;
6002 case TARGET_NR_sched_setscheduler:
6003 {
6004 struct sched_param *target_schp;
6005 struct sched_param schp;
6006 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6007 goto efault;
6008 schp.sched_priority = tswap32(target_schp->sched_priority);
6009 unlock_user_struct(target_schp, arg3, 0);
6010 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6011 }
6012 break;
6013 case TARGET_NR_sched_getscheduler:
6014 ret = get_errno(sched_getscheduler(arg1));
6015 break;
6016 case TARGET_NR_sched_yield:
6017 ret = get_errno(sched_yield());
6018 break;
6019 case TARGET_NR_sched_get_priority_max:
6020 ret = get_errno(sched_get_priority_max(arg1));
6021 break;
6022 case TARGET_NR_sched_get_priority_min:
6023 ret = get_errno(sched_get_priority_min(arg1));
6024 break;
6025 case TARGET_NR_sched_rr_get_interval:
6026 {
6027 struct timespec ts;
6028 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6029 if (!is_error(ret)) {
6030 host_to_target_timespec(arg2, &ts);
6031 }
6032 }
6033 break;
6034 case TARGET_NR_nanosleep:
6035 {
6036 struct timespec req, rem;
6037 target_to_host_timespec(&req, arg1);
6038 ret = get_errno(nanosleep(&req, &rem));
6039 if (is_error(ret) && arg2) {
6040 host_to_target_timespec(arg2, &rem);
6041 }
6042 }
6043 break;
6044 #ifdef TARGET_NR_query_module
6045 case TARGET_NR_query_module:
6046 goto unimplemented;
6047 #endif
6048 #ifdef TARGET_NR_nfsservctl
6049 case TARGET_NR_nfsservctl:
6050 goto unimplemented;
6051 #endif
6052 case TARGET_NR_prctl:
6053 switch (arg1)
6054 {
6055 case PR_GET_PDEATHSIG:
6056 {
6057 int deathsig;
6058 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6059 if (!is_error(ret) && arg2
6060 && put_user_ual(deathsig, arg2))
6061 goto efault;
6062 }
6063 break;
6064 default:
6065 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6066 break;
6067 }
6068 break;
6069 #ifdef TARGET_NR_arch_prctl
6070 case TARGET_NR_arch_prctl:
6071 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6072 ret = do_arch_prctl(cpu_env, arg1, arg2);
6073 break;
6074 #else
6075 goto unimplemented;
6076 #endif
6077 #endif
6078 #ifdef TARGET_NR_pread
6079 case TARGET_NR_pread:
6080 #ifdef TARGET_ARM
6081 if (((CPUARMState *)cpu_env)->eabi)
6082 arg4 = arg5;
6083 #endif
6084 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6085 goto efault;
6086 ret = get_errno(pread(arg1, p, arg3, arg4));
6087 unlock_user(p, arg2, ret);
6088 break;
6089 case TARGET_NR_pwrite:
6090 #ifdef TARGET_ARM
6091 if (((CPUARMState *)cpu_env)->eabi)
6092 arg4 = arg5;
6093 #endif
6094 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6095 goto efault;
6096 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6097 unlock_user(p, arg2, 0);
6098 break;
6099 #endif
6100 #ifdef TARGET_NR_pread64
6101 case TARGET_NR_pread64:
6102 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6103 goto efault;
6104 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6105 unlock_user(p, arg2, ret);
6106 break;
6107 case TARGET_NR_pwrite64:
6108 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6109 goto efault;
6110 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6111 unlock_user(p, arg2, 0);
6112 break;
6113 #endif
6114 case TARGET_NR_getcwd:
6115 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6116 goto efault;
6117 ret = get_errno(sys_getcwd1(p, arg2));
6118 unlock_user(p, arg1, ret);
6119 break;
6120 case TARGET_NR_capget:
6121 goto unimplemented;
6122 case TARGET_NR_capset:
6123 goto unimplemented;
6124 case TARGET_NR_sigaltstack:
6125 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6126 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6127 defined(TARGET_M68K)
6128 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6129 break;
6130 #else
6131 goto unimplemented;
6132 #endif
6133 case TARGET_NR_sendfile:
6134 goto unimplemented;
6135 #ifdef TARGET_NR_getpmsg
6136 case TARGET_NR_getpmsg:
6137 goto unimplemented;
6138 #endif
6139 #ifdef TARGET_NR_putpmsg
6140 case TARGET_NR_putpmsg:
6141 goto unimplemented;
6142 #endif
6143 #ifdef TARGET_NR_vfork
6144 case TARGET_NR_vfork:
6145 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6146 0, 0, 0, 0));
6147 break;
6148 #endif
6149 #ifdef TARGET_NR_ugetrlimit
6150 case TARGET_NR_ugetrlimit:
6151 {
6152 struct rlimit rlim;
6153 ret = get_errno(getrlimit(arg1, &rlim));
6154 if (!is_error(ret)) {
6155 struct target_rlimit *target_rlim;
6156 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6157 goto efault;
6158 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
6159 target_rlim->rlim_max = tswapl(rlim.rlim_max);
6160 unlock_user_struct(target_rlim, arg2, 1);
6161 }
6162 break;
6163 }
6164 #endif
6165 #ifdef TARGET_NR_truncate64
6166 case TARGET_NR_truncate64:
6167 if (!(p = lock_user_string(arg1)))
6168 goto efault;
6169 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6170 unlock_user(p, arg1, 0);
6171 break;
6172 #endif
6173 #ifdef TARGET_NR_ftruncate64
6174 case TARGET_NR_ftruncate64:
6175 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6176 break;
6177 #endif
6178 #ifdef TARGET_NR_stat64
6179 case TARGET_NR_stat64:
6180 if (!(p = lock_user_string(arg1)))
6181 goto efault;
6182 ret = get_errno(stat(path(p), &st));
6183 unlock_user(p, arg1, 0);
6184 if (!is_error(ret))
6185 ret = host_to_target_stat64(cpu_env, arg2, &st);
6186 break;
6187 #endif
6188 #ifdef TARGET_NR_lstat64
6189 case TARGET_NR_lstat64:
6190 if (!(p = lock_user_string(arg1)))
6191 goto efault;
6192 ret = get_errno(lstat(path(p), &st));
6193 unlock_user(p, arg1, 0);
6194 if (!is_error(ret))
6195 ret = host_to_target_stat64(cpu_env, arg2, &st);
6196 break;
6197 #endif
6198 #ifdef TARGET_NR_fstat64
6199 case TARGET_NR_fstat64:
6200 ret = get_errno(fstat(arg1, &st));
6201 if (!is_error(ret))
6202 ret = host_to_target_stat64(cpu_env, arg2, &st);
6203 break;
6204 #endif
6205 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6206 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6207 #ifdef TARGET_NR_fstatat64
6208 case TARGET_NR_fstatat64:
6209 #endif
6210 #ifdef TARGET_NR_newfstatat
6211 case TARGET_NR_newfstatat:
6212 #endif
6213 if (!(p = lock_user_string(arg2)))
6214 goto efault;
6215 #ifdef __NR_fstatat64
6216 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6217 #else
6218 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6219 #endif
6220 if (!is_error(ret))
6221 ret = host_to_target_stat64(cpu_env, arg3, &st);
6222 break;
6223 #endif
6224 #ifdef USE_UID16
6225 case TARGET_NR_lchown:
6226 if (!(p = lock_user_string(arg1)))
6227 goto efault;
6228 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6229 unlock_user(p, arg1, 0);
6230 break;
6231 case TARGET_NR_getuid:
6232 ret = get_errno(high2lowuid(getuid()));
6233 break;
6234 case TARGET_NR_getgid:
6235 ret = get_errno(high2lowgid(getgid()));
6236 break;
6237 case TARGET_NR_geteuid:
6238 ret = get_errno(high2lowuid(geteuid()));
6239 break;
6240 case TARGET_NR_getegid:
6241 ret = get_errno(high2lowgid(getegid()));
6242 break;
6243 case TARGET_NR_setreuid:
6244 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6245 break;
6246 case TARGET_NR_setregid:
6247 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6248 break;
6249 case TARGET_NR_getgroups:
6250 {
6251 int gidsetsize = arg1;
6252 uint16_t *target_grouplist;
6253 gid_t *grouplist;
6254 int i;
6255
6256 grouplist = alloca(gidsetsize * sizeof(gid_t));
6257 ret = get_errno(getgroups(gidsetsize, grouplist));
6258 if (gidsetsize == 0)
6259 break;
6260 if (!is_error(ret)) {
6261 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6262 if (!target_grouplist)
6263 goto efault;
6264 for(i = 0;i < ret; i++)
6265 target_grouplist[i] = tswap16(grouplist[i]);
6266 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6267 }
6268 }
6269 break;
6270 case TARGET_NR_setgroups:
6271 {
6272 int gidsetsize = arg1;
6273 uint16_t *target_grouplist;
6274 gid_t *grouplist;
6275 int i;
6276
6277 grouplist = alloca(gidsetsize * sizeof(gid_t));
6278 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6279 if (!target_grouplist) {
6280 ret = -TARGET_EFAULT;
6281 goto fail;
6282 }
6283 for(i = 0;i < gidsetsize; i++)
6284 grouplist[i] = tswap16(target_grouplist[i]);
6285 unlock_user(target_grouplist, arg2, 0);
6286 ret = get_errno(setgroups(gidsetsize, grouplist));
6287 }
6288 break;
6289 case TARGET_NR_fchown:
6290 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6291 break;
6292 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6293 case TARGET_NR_fchownat:
6294 if (!(p = lock_user_string(arg2)))
6295 goto efault;
6296 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6297 unlock_user(p, arg2, 0);
6298 break;
6299 #endif
6300 #ifdef TARGET_NR_setresuid
6301 case TARGET_NR_setresuid:
6302 ret = get_errno(setresuid(low2highuid(arg1),
6303 low2highuid(arg2),
6304 low2highuid(arg3)));
6305 break;
6306 #endif
6307 #ifdef TARGET_NR_getresuid
6308 case TARGET_NR_getresuid:
6309 {
6310 uid_t ruid, euid, suid;
6311 ret = get_errno(getresuid(&ruid, &euid, &suid));
6312 if (!is_error(ret)) {
6313 if (put_user_u16(high2lowuid(ruid), arg1)
6314 || put_user_u16(high2lowuid(euid), arg2)
6315 || put_user_u16(high2lowuid(suid), arg3))
6316 goto efault;
6317 }
6318 }
6319 break;
6320 #endif
6321 #ifdef TARGET_NR_getresgid
6322 case TARGET_NR_setresgid:
6323 ret = get_errno(setresgid(low2highgid(arg1),
6324 low2highgid(arg2),
6325 low2highgid(arg3)));
6326 break;
6327 #endif
6328 #ifdef TARGET_NR_getresgid
6329 case TARGET_NR_getresgid:
6330 {
6331 gid_t rgid, egid, sgid;
6332 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6333 if (!is_error(ret)) {
6334 if (put_user_u16(high2lowgid(rgid), arg1)
6335 || put_user_u16(high2lowgid(egid), arg2)
6336 || put_user_u16(high2lowgid(sgid), arg3))
6337 goto efault;
6338 }
6339 }
6340 break;
6341 #endif
6342 case TARGET_NR_chown:
6343 if (!(p = lock_user_string(arg1)))
6344 goto efault;
6345 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6346 unlock_user(p, arg1, 0);
6347 break;
6348 case TARGET_NR_setuid:
6349 ret = get_errno(setuid(low2highuid(arg1)));
6350 break;
6351 case TARGET_NR_setgid:
6352 ret = get_errno(setgid(low2highgid(arg1)));
6353 break;
6354 case TARGET_NR_setfsuid:
6355 ret = get_errno(setfsuid(arg1));
6356 break;
6357 case TARGET_NR_setfsgid:
6358 ret = get_errno(setfsgid(arg1));
6359 break;
6360 #endif /* USE_UID16 */
6361
6362 #ifdef TARGET_NR_lchown32
6363 case TARGET_NR_lchown32:
6364 if (!(p = lock_user_string(arg1)))
6365 goto efault;
6366 ret = get_errno(lchown(p, arg2, arg3));
6367 unlock_user(p, arg1, 0);
6368 break;
6369 #endif
6370 #ifdef TARGET_NR_getuid32
6371 case TARGET_NR_getuid32:
6372 ret = get_errno(getuid());
6373 break;
6374 #endif
6375
6376 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6377 /* Alpha specific */
6378 case TARGET_NR_getxuid:
6379 {
6380 uid_t euid;
6381 euid=geteuid();
6382 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6383 }
6384 ret = get_errno(getuid());
6385 break;
6386 #endif
6387 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6388 /* Alpha specific */
6389 case TARGET_NR_getxgid:
6390 {
6391 uid_t egid;
6392 egid=getegid();
6393 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6394 }
6395 ret = get_errno(getgid());
6396 break;
6397 #endif
6398
6399 #ifdef TARGET_NR_getgid32
6400 case TARGET_NR_getgid32:
6401 ret = get_errno(getgid());
6402 break;
6403 #endif
6404 #ifdef TARGET_NR_geteuid32
6405 case TARGET_NR_geteuid32:
6406 ret = get_errno(geteuid());
6407 break;
6408 #endif
6409 #ifdef TARGET_NR_getegid32
6410 case TARGET_NR_getegid32:
6411 ret = get_errno(getegid());
6412 break;
6413 #endif
6414 #ifdef TARGET_NR_setreuid32
6415 case TARGET_NR_setreuid32:
6416 ret = get_errno(setreuid(arg1, arg2));
6417 break;
6418 #endif
6419 #ifdef TARGET_NR_setregid32
6420 case TARGET_NR_setregid32:
6421 ret = get_errno(setregid(arg1, arg2));
6422 break;
6423 #endif
6424 #ifdef TARGET_NR_getgroups32
6425 case TARGET_NR_getgroups32:
6426 {
6427 int gidsetsize = arg1;
6428 uint32_t *target_grouplist;
6429 gid_t *grouplist;
6430 int i;
6431
6432 grouplist = alloca(gidsetsize * sizeof(gid_t));
6433 ret = get_errno(getgroups(gidsetsize, grouplist));
6434 if (gidsetsize == 0)
6435 break;
6436 if (!is_error(ret)) {
6437 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
6438 if (!target_grouplist) {
6439 ret = -TARGET_EFAULT;
6440 goto fail;
6441 }
6442 for(i = 0;i < ret; i++)
6443 target_grouplist[i] = tswap32(grouplist[i]);
6444 unlock_user(target_grouplist, arg2, gidsetsize * 4);
6445 }
6446 }
6447 break;
6448 #endif
6449 #ifdef TARGET_NR_setgroups32
6450 case TARGET_NR_setgroups32:
6451 {
6452 int gidsetsize = arg1;
6453 uint32_t *target_grouplist;
6454 gid_t *grouplist;
6455 int i;
6456
6457 grouplist = alloca(gidsetsize * sizeof(gid_t));
6458 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
6459 if (!target_grouplist) {
6460 ret = -TARGET_EFAULT;
6461 goto fail;
6462 }
6463 for(i = 0;i < gidsetsize; i++)
6464 grouplist[i] = tswap32(target_grouplist[i]);
6465 unlock_user(target_grouplist, arg2, 0);
6466 ret = get_errno(setgroups(gidsetsize, grouplist));
6467 }
6468 break;
6469 #endif
6470 #ifdef TARGET_NR_fchown32
6471 case TARGET_NR_fchown32:
6472 ret = get_errno(fchown(arg1, arg2, arg3));
6473 break;
6474 #endif
6475 #ifdef TARGET_NR_setresuid32
6476 case TARGET_NR_setresuid32:
6477 ret = get_errno(setresuid(arg1, arg2, arg3));
6478 break;
6479 #endif
6480 #ifdef TARGET_NR_getresuid32
6481 case TARGET_NR_getresuid32:
6482 {
6483 uid_t ruid, euid, suid;
6484 ret = get_errno(getresuid(&ruid, &euid, &suid));
6485 if (!is_error(ret)) {
6486 if (put_user_u32(ruid, arg1)
6487 || put_user_u32(euid, arg2)
6488 || put_user_u32(suid, arg3))
6489 goto efault;
6490 }
6491 }
6492 break;
6493 #endif
6494 #ifdef TARGET_NR_setresgid32
6495 case TARGET_NR_setresgid32:
6496 ret = get_errno(setresgid(arg1, arg2, arg3));
6497 break;
6498 #endif
6499 #ifdef TARGET_NR_getresgid32
6500 case TARGET_NR_getresgid32:
6501 {
6502 gid_t rgid, egid, sgid;
6503 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6504 if (!is_error(ret)) {
6505 if (put_user_u32(rgid, arg1)
6506 || put_user_u32(egid, arg2)
6507 || put_user_u32(sgid, arg3))
6508 goto efault;
6509 }
6510 }
6511 break;
6512 #endif
6513 #ifdef TARGET_NR_chown32
6514 case TARGET_NR_chown32:
6515 if (!(p = lock_user_string(arg1)))
6516 goto efault;
6517 ret = get_errno(chown(p, arg2, arg3));
6518 unlock_user(p, arg1, 0);
6519 break;
6520 #endif
6521 #ifdef TARGET_NR_setuid32
6522 case TARGET_NR_setuid32:
6523 ret = get_errno(setuid(arg1));
6524 break;
6525 #endif
6526 #ifdef TARGET_NR_setgid32
6527 case TARGET_NR_setgid32:
6528 ret = get_errno(setgid(arg1));
6529 break;
6530 #endif
6531 #ifdef TARGET_NR_setfsuid32
6532 case TARGET_NR_setfsuid32:
6533 ret = get_errno(setfsuid(arg1));
6534 break;
6535 #endif
6536 #ifdef TARGET_NR_setfsgid32
6537 case TARGET_NR_setfsgid32:
6538 ret = get_errno(setfsgid(arg1));
6539 break;
6540 #endif
6541
6542 case TARGET_NR_pivot_root:
6543 goto unimplemented;
6544 #ifdef TARGET_NR_mincore
6545 case TARGET_NR_mincore:
6546 {
6547 void *a;
6548 ret = -TARGET_EFAULT;
6549 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
6550 goto efault;
6551 if (!(p = lock_user_string(arg3)))
6552 goto mincore_fail;
6553 ret = get_errno(mincore(a, arg2, p));
6554 unlock_user(p, arg3, ret);
6555 mincore_fail:
6556 unlock_user(a, arg1, 0);
6557 }
6558 break;
6559 #endif
6560 #ifdef TARGET_NR_arm_fadvise64_64
6561 case TARGET_NR_arm_fadvise64_64:
6562 {
6563 /*
6564 * arm_fadvise64_64 looks like fadvise64_64 but
6565 * with different argument order
6566 */
6567 abi_long temp;
6568 temp = arg3;
6569 arg3 = arg4;
6570 arg4 = temp;
6571 }
6572 #endif
6573 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
6574 #ifdef TARGET_NR_fadvise64_64
6575 case TARGET_NR_fadvise64_64:
6576 #endif
6577 #ifdef TARGET_NR_fadvise64
6578 case TARGET_NR_fadvise64:
6579 #endif
6580 #ifdef TARGET_S390X
6581 switch (arg4) {
6582 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
6583 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
6584 case 6: arg4 = POSIX_FADV_DONTNEED; break;
6585 case 7: arg4 = POSIX_FADV_NOREUSE; break;
6586 default: break;
6587 }
6588 #endif
6589 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
6590 break;
6591 #endif
6592 #ifdef TARGET_NR_madvise
6593 case TARGET_NR_madvise:
6594 /* A straight passthrough may not be safe because qemu sometimes
6595 turns private flie-backed mappings into anonymous mappings.
6596 This will break MADV_DONTNEED.
6597 This is a hint, so ignoring and returning success is ok. */
6598 ret = get_errno(0);
6599 break;
6600 #endif
6601 #if TARGET_ABI_BITS == 32
6602 case TARGET_NR_fcntl64:
6603 {
6604 int cmd;
6605 struct flock64 fl;
6606 struct target_flock64 *target_fl;
6607 #ifdef TARGET_ARM
6608 struct target_eabi_flock64 *target_efl;
6609 #endif
6610
6611 cmd = target_to_host_fcntl_cmd(arg2);
6612 if (cmd == -TARGET_EINVAL)
6613 return cmd;
6614
6615 switch(arg2) {
6616 case TARGET_F_GETLK64:
6617 #ifdef TARGET_ARM
6618 if (((CPUARMState *)cpu_env)->eabi) {
6619 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
6620 goto efault;
6621 fl.l_type = tswap16(target_efl->l_type);
6622 fl.l_whence = tswap16(target_efl->l_whence);
6623 fl.l_start = tswap64(target_efl->l_start);
6624 fl.l_len = tswap64(target_efl->l_len);
6625 fl.l_pid = tswap32(target_efl->l_pid);
6626 unlock_user_struct(target_efl, arg3, 0);
6627 } else
6628 #endif
6629 {
6630 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
6631 goto efault;
6632 fl.l_type = tswap16(target_fl->l_type);
6633 fl.l_whence = tswap16(target_fl->l_whence);
6634 fl.l_start = tswap64(target_fl->l_start);
6635 fl.l_len = tswap64(target_fl->l_len);
6636 fl.l_pid = tswap32(target_fl->l_pid);
6637 unlock_user_struct(target_fl, arg3, 0);
6638 }
6639 ret = get_errno(fcntl(arg1, cmd, &fl));
6640 if (ret == 0) {
6641 #ifdef TARGET_ARM
6642 if (((CPUARMState *)cpu_env)->eabi) {
6643 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
6644 goto efault;
6645 target_efl->l_type = tswap16(fl.l_type);
6646 target_efl->l_whence = tswap16(fl.l_whence);
6647 target_efl->l_start = tswap64(fl.l_start);
6648 target_efl->l_len = tswap64(fl.l_len);
6649 target_efl->l_pid = tswap32(fl.l_pid);
6650 unlock_user_struct(target_efl, arg3, 1);
6651 } else
6652 #endif
6653 {
6654 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
6655 goto efault;
6656 target_fl->l_type = tswap16(fl.l_type);
6657 target_fl->l_whence = tswap16(fl.l_whence);
6658 target_fl->l_start = tswap64(fl.l_start);
6659 target_fl->l_len = tswap64(fl.l_len);
6660 target_fl->l_pid = tswap32(fl.l_pid);
6661 unlock_user_struct(target_fl, arg3, 1);
6662 }
6663 }
6664 break;
6665
6666 case TARGET_F_SETLK64:
6667 case TARGET_F_SETLKW64:
6668 #ifdef TARGET_ARM
6669 if (((CPUARMState *)cpu_env)->eabi) {
6670 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
6671 goto efault;
6672 fl.l_type = tswap16(target_efl->l_type);
6673 fl.l_whence = tswap16(target_efl->l_whence);
6674 fl.l_start = tswap64(target_efl->l_start);
6675 fl.l_len = tswap64(target_efl->l_len);
6676 fl.l_pid = tswap32(target_efl->l_pid);
6677 unlock_user_struct(target_efl, arg3, 0);
6678 } else
6679 #endif
6680 {
6681 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
6682 goto efault;
6683 fl.l_type = tswap16(target_fl->l_type);
6684 fl.l_whence = tswap16(target_fl->l_whence);
6685 fl.l_start = tswap64(target_fl->l_start);
6686 fl.l_len = tswap64(target_fl->l_len);
6687 fl.l_pid = tswap32(target_fl->l_pid);
6688 unlock_user_struct(target_fl, arg3, 0);
6689 }
6690 ret = get_errno(fcntl(arg1, cmd, &fl));
6691 break;
6692 default:
6693 ret = do_fcntl(arg1, arg2, arg3);
6694 break;
6695 }
6696 break;
6697 }
6698 #endif
6699 #ifdef TARGET_NR_cacheflush
6700 case TARGET_NR_cacheflush:
6701 /* self-modifying code is handled automatically, so nothing needed */
6702 ret = 0;
6703 break;
6704 #endif
6705 #ifdef TARGET_NR_security
6706 case TARGET_NR_security:
6707 goto unimplemented;
6708 #endif
6709 #ifdef TARGET_NR_getpagesize
6710 case TARGET_NR_getpagesize:
6711 ret = TARGET_PAGE_SIZE;
6712 break;
6713 #endif
6714 case TARGET_NR_gettid:
6715 ret = get_errno(gettid());
6716 break;
6717 #ifdef TARGET_NR_readahead
6718 case TARGET_NR_readahead:
6719 #if TARGET_ABI_BITS == 32
6720 #ifdef TARGET_ARM
6721 if (((CPUARMState *)cpu_env)->eabi)
6722 {
6723 arg2 = arg3;
6724 arg3 = arg4;
6725 arg4 = arg5;
6726 }
6727 #endif
6728 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
6729 #else
6730 ret = get_errno(readahead(arg1, arg2, arg3));
6731 #endif
6732 break;
6733 #endif
6734 #ifdef TARGET_NR_setxattr
6735 case TARGET_NR_setxattr:
6736 case TARGET_NR_lsetxattr:
6737 case TARGET_NR_fsetxattr:
6738 case TARGET_NR_getxattr:
6739 case TARGET_NR_lgetxattr:
6740 case TARGET_NR_fgetxattr:
6741 case TARGET_NR_listxattr:
6742 case TARGET_NR_llistxattr:
6743 case TARGET_NR_flistxattr:
6744 case TARGET_NR_removexattr:
6745 case TARGET_NR_lremovexattr:
6746 case TARGET_NR_fremovexattr:
6747 ret = -TARGET_EOPNOTSUPP;
6748 break;
6749 #endif
6750 #ifdef TARGET_NR_set_thread_area
6751 case TARGET_NR_set_thread_area:
6752 #if defined(TARGET_MIPS)
6753 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
6754 ret = 0;
6755 break;
6756 #elif defined(TARGET_CRIS)
6757 if (arg1 & 0xff)
6758 ret = -TARGET_EINVAL;
6759 else {
6760 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
6761 ret = 0;
6762 }
6763 break;
6764 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
6765 ret = do_set_thread_area(cpu_env, arg1);
6766 break;
6767 #else
6768 goto unimplemented_nowarn;
6769 #endif
6770 #endif
6771 #ifdef TARGET_NR_get_thread_area
6772 case TARGET_NR_get_thread_area:
6773 #if defined(TARGET_I386) && defined(TARGET_ABI32)
6774 ret = do_get_thread_area(cpu_env, arg1);
6775 #else
6776 goto unimplemented_nowarn;
6777 #endif
6778 #endif
6779 #ifdef TARGET_NR_getdomainname
6780 case TARGET_NR_getdomainname:
6781 goto unimplemented_nowarn;
6782 #endif
6783
6784 #ifdef TARGET_NR_clock_gettime
6785 case TARGET_NR_clock_gettime:
6786 {
6787 struct timespec ts;
6788 ret = get_errno(clock_gettime(arg1, &ts));
6789 if (!is_error(ret)) {
6790 host_to_target_timespec(arg2, &ts);
6791 }
6792 break;
6793 }
6794 #endif
6795 #ifdef TARGET_NR_clock_getres
6796 case TARGET_NR_clock_getres:
6797 {
6798 struct timespec ts;
6799 ret = get_errno(clock_getres(arg1, &ts));
6800 if (!is_error(ret)) {
6801 host_to_target_timespec(arg2, &ts);
6802 }
6803 break;
6804 }
6805 #endif
6806 #ifdef TARGET_NR_clock_nanosleep
6807 case TARGET_NR_clock_nanosleep:
6808 {
6809 struct timespec ts;
6810 target_to_host_timespec(&ts, arg3);
6811 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
6812 if (arg4)
6813 host_to_target_timespec(arg4, &ts);
6814 break;
6815 }
6816 #endif
6817
6818 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
6819 case TARGET_NR_set_tid_address:
6820 ret = get_errno(set_tid_address((int *)g2h(arg1)));
6821 break;
6822 #endif
6823
6824 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
6825 case TARGET_NR_tkill:
6826 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
6827 break;
6828 #endif
6829
6830 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
6831 case TARGET_NR_tgkill:
6832 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
6833 target_to_host_signal(arg3)));
6834 break;
6835 #endif
6836
6837 #ifdef TARGET_NR_set_robust_list
6838 case TARGET_NR_set_robust_list:
6839 goto unimplemented_nowarn;
6840 #endif
6841
6842 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
6843 case TARGET_NR_utimensat:
6844 {
6845 struct timespec *tsp, ts[2];
6846 if (!arg3) {
6847 tsp = NULL;
6848 } else {
6849 target_to_host_timespec(ts, arg3);
6850 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
6851 tsp = ts;
6852 }
6853 if (!arg2)
6854 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
6855 else {
6856 if (!(p = lock_user_string(arg2))) {
6857 ret = -TARGET_EFAULT;
6858 goto fail;
6859 }
6860 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
6861 unlock_user(p, arg2, 0);
6862 }
6863 }
6864 break;
6865 #endif
6866 #if defined(CONFIG_USE_NPTL)
6867 case TARGET_NR_futex:
6868 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
6869 break;
6870 #endif
6871 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
6872 case TARGET_NR_inotify_init:
6873 ret = get_errno(sys_inotify_init());
6874 break;
6875 #endif
6876 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
6877 case TARGET_NR_inotify_add_watch:
6878 p = lock_user_string(arg2);
6879 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
6880 unlock_user(p, arg2, 0);
6881 break;
6882 #endif
6883 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
6884 case TARGET_NR_inotify_rm_watch:
6885 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
6886 break;
6887 #endif
6888
6889 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
6890 case TARGET_NR_mq_open:
6891 {
6892 struct mq_attr posix_mq_attr;
6893
6894 p = lock_user_string(arg1 - 1);
6895 if (arg4 != 0)
6896 copy_from_user_mq_attr (&posix_mq_attr, arg4);
6897 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
6898 unlock_user (p, arg1, 0);
6899 }
6900 break;
6901
6902 case TARGET_NR_mq_unlink:
6903 p = lock_user_string(arg1 - 1);
6904 ret = get_errno(mq_unlink(p));
6905 unlock_user (p, arg1, 0);
6906 break;
6907
6908 case TARGET_NR_mq_timedsend:
6909 {
6910 struct timespec ts;
6911
6912 p = lock_user (VERIFY_READ, arg2, arg3, 1);
6913 if (arg5 != 0) {
6914 target_to_host_timespec(&ts, arg5);
6915 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
6916 host_to_target_timespec(arg5, &ts);
6917 }
6918 else
6919 ret = get_errno(mq_send(arg1, p, arg3, arg4));
6920 unlock_user (p, arg2, arg3);
6921 }
6922 break;
6923
6924 case TARGET_NR_mq_timedreceive:
6925 {
6926 struct timespec ts;
6927 unsigned int prio;
6928
6929 p = lock_user (VERIFY_READ, arg2, arg3, 1);
6930 if (arg5 != 0) {
6931 target_to_host_timespec(&ts, arg5);
6932 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
6933 host_to_target_timespec(arg5, &ts);
6934 }
6935 else
6936 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
6937 unlock_user (p, arg2, arg3);
6938 if (arg4 != 0)
6939 put_user_u32(prio, arg4);
6940 }
6941 break;
6942
6943 /* Not implemented for now... */
6944 /* case TARGET_NR_mq_notify: */
6945 /* break; */
6946
6947 case TARGET_NR_mq_getsetattr:
6948 {
6949 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
6950 ret = 0;
6951 if (arg3 != 0) {
6952 ret = mq_getattr(arg1, &posix_mq_attr_out);
6953 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
6954 }
6955 if (arg2 != 0) {
6956 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
6957 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
6958 }
6959
6960 }
6961 break;
6962 #endif
6963
6964 #ifdef CONFIG_SPLICE
6965 #ifdef TARGET_NR_tee
6966 case TARGET_NR_tee:
6967 {
6968 ret = get_errno(tee(arg1,arg2,arg3,arg4));
6969 }
6970 break;
6971 #endif
6972 #ifdef TARGET_NR_splice
6973 case TARGET_NR_splice:
6974 {
6975 loff_t loff_in, loff_out;
6976 loff_t *ploff_in = NULL, *ploff_out = NULL;
6977 if(arg2) {
6978 get_user_u64(loff_in, arg2);
6979 ploff_in = &loff_in;
6980 }
6981 if(arg4) {
6982 get_user_u64(loff_out, arg2);
6983 ploff_out = &loff_out;
6984 }
6985 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
6986 }
6987 break;
6988 #endif
6989 #ifdef TARGET_NR_vmsplice
6990 case TARGET_NR_vmsplice:
6991 {
6992 int count = arg3;
6993 struct iovec *vec;
6994
6995 vec = alloca(count * sizeof(struct iovec));
6996 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6997 goto efault;
6998 ret = get_errno(vmsplice(arg1, vec, count, arg4));
6999 unlock_iovec(vec, arg2, count, 0);
7000 }
7001 break;
7002 #endif
7003 #endif /* CONFIG_SPLICE */
7004 #ifdef CONFIG_EVENTFD
7005 #if defined(TARGET_NR_eventfd)
7006 case TARGET_NR_eventfd:
7007 ret = get_errno(eventfd(arg1, 0));
7008 break;
7009 #endif
7010 #if defined(TARGET_NR_eventfd2)
7011 case TARGET_NR_eventfd2:
7012 ret = get_errno(eventfd(arg1, arg2));
7013 break;
7014 #endif
7015 #endif /* CONFIG_EVENTFD */
7016 default:
7017 unimplemented:
7018 gemu_log("qemu: Unsupported syscall: %d\n", num);
7019 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
7020 unimplemented_nowarn:
7021 #endif
7022 ret = -TARGET_ENOSYS;
7023 break;
7024 }
7025 fail:
7026 #ifdef DEBUG
7027 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
7028 #endif
7029 if(do_strace)
7030 print_syscall_ret(num, ret);
7031 return ret;
7032 efault:
7033 ret = -TARGET_EFAULT;
7034 goto fail;
7035 }
QEmu