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raw-posix: Remove O_RDWR when attempting to open a file read-only
[qemu-kvm/amd-iommu.git] / linux-user / syscall.c
blob53a11ab8770bdcedd15e6e3865251907033b9706
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, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 * MA 02110-1301, USA.
20 */
21 #define _ATFILE_SOURCE
22 #include <stdlib.h>
23 #include <stdio.h>
24 #include <stdarg.h>
25 #include <string.h>
26 #include <elf.h>
27 #include <endian.h>
28 #include <errno.h>
29 #include <unistd.h>
30 #include <fcntl.h>
31 #include <time.h>
32 #include <limits.h>
33 #include <mqueue.h>
34 #include <sys/types.h>
35 #include <sys/ipc.h>
36 #include <sys/msg.h>
37 #include <sys/wait.h>
38 #include <sys/time.h>
39 #include <sys/stat.h>
40 #include <sys/mount.h>
41 #include <sys/prctl.h>
42 #include <sys/resource.h>
43 #include <sys/mman.h>
44 #include <sys/swap.h>
45 #include <signal.h>
46 #include <sched.h>
47 #include <sys/socket.h>
48 #include <sys/un.h>
49 #include <sys/uio.h>
50 #include <sys/poll.h>
51 #include <sys/times.h>
52 #include <sys/shm.h>
53 #include <sys/sem.h>
54 #include <sys/statfs.h>
55 #include <utime.h>
56 #include <sys/sysinfo.h>
57 #include <sys/utsname.h>
58 //#include <sys/user.h>
59 #include <netinet/ip.h>
60 #include <netinet/tcp.h>
61 #include <qemu-common.h>
62 #ifdef HAVE_GPROF
63 #include <sys/gmon.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(USE_NPTL)
88 #include <linux/futex.h>
89 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
90 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
91 #else
92 /* XXX: Hardcode the above values. */
93 #define CLONE_NPTL_FLAGS2 0
94 #endif
95
96 //#define DEBUG
97
98 //#include <linux/msdos_fs.h>
99 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
100 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
101
102
103 #undef _syscall0
104 #undef _syscall1
105 #undef _syscall2
106 #undef _syscall3
107 #undef _syscall4
108 #undef _syscall5
109 #undef _syscall6
110
111 #define _syscall0(type,name) \
112 static type name (void) \
113 { \
114 return syscall(__NR_##name); \
115 }
116
117 #define _syscall1(type,name,type1,arg1) \
118 static type name (type1 arg1) \
119 { \
120 return syscall(__NR_##name, arg1); \
121 }
122
123 #define _syscall2(type,name,type1,arg1,type2,arg2) \
124 static type name (type1 arg1,type2 arg2) \
125 { \
126 return syscall(__NR_##name, arg1, arg2); \
127 }
128
129 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
130 static type name (type1 arg1,type2 arg2,type3 arg3) \
131 { \
132 return syscall(__NR_##name, arg1, arg2, arg3); \
133 }
134
135 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
136 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
137 { \
138 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
139 }
140
141 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
142 type5,arg5) \
143 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
144 { \
145 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
146 }
147
148
149 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
150 type5,arg5,type6,arg6) \
151 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
152 type6 arg6) \
153 { \
154 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
155 }
156
157
158 #define __NR_sys_uname __NR_uname
159 #define __NR_sys_faccessat __NR_faccessat
160 #define __NR_sys_fchmodat __NR_fchmodat
161 #define __NR_sys_fchownat __NR_fchownat
162 #define __NR_sys_fstatat64 __NR_fstatat64
163 #define __NR_sys_futimesat __NR_futimesat
164 #define __NR_sys_getcwd1 __NR_getcwd
165 #define __NR_sys_getdents __NR_getdents
166 #define __NR_sys_getdents64 __NR_getdents64
167 #define __NR_sys_getpriority __NR_getpriority
168 #define __NR_sys_linkat __NR_linkat
169 #define __NR_sys_mkdirat __NR_mkdirat
170 #define __NR_sys_mknodat __NR_mknodat
171 #define __NR_sys_newfstatat __NR_newfstatat
172 #define __NR_sys_openat __NR_openat
173 #define __NR_sys_readlinkat __NR_readlinkat
174 #define __NR_sys_renameat __NR_renameat
175 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
176 #define __NR_sys_symlinkat __NR_symlinkat
177 #define __NR_sys_syslog __NR_syslog
178 #define __NR_sys_tgkill __NR_tgkill
179 #define __NR_sys_tkill __NR_tkill
180 #define __NR_sys_unlinkat __NR_unlinkat
181 #define __NR_sys_utimensat __NR_utimensat
182 #define __NR_sys_futex __NR_futex
183 #define __NR_sys_inotify_init __NR_inotify_init
184 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
185 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
186
187 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
188 #define __NR__llseek __NR_lseek
189 #endif
190
191 #ifdef __NR_gettid
192 _syscall0(int, gettid)
193 #else
194 /* This is a replacement for the host gettid() and must return a host
195 errno. */
196 static int gettid(void) {
197 return -ENOSYS;
198 }
199 #endif
200 #if TARGET_ABI_BITS == 32
201 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
202 #endif
203 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
204 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
205 #endif
206 _syscall2(int, sys_getpriority, int, which, int, who);
207 #if defined(TARGET_NR__llseek) && !defined (__x86_64__)
208 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
209 loff_t *, res, uint, wh);
210 #endif
211 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
212 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
213 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
214 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
215 #endif
216 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
217 _syscall2(int,sys_tkill,int,tid,int,sig)
218 #endif
219 #ifdef __NR_exit_group
220 _syscall1(int,exit_group,int,error_code)
221 #endif
222 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
223 _syscall1(int,set_tid_address,int *,tidptr)
224 #endif
225 #if defined(USE_NPTL)
226 #if defined(TARGET_NR_futex) && defined(__NR_futex)
227 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
228 const struct timespec *,timeout,int *,uaddr2,int,val3)
229 #endif
230 #endif
231
232 static bitmask_transtbl fcntl_flags_tbl[] = {
233 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
234 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
235 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
236 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
237 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
238 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
239 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
240 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
241 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
242 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
243 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
244 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
245 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
246 #if defined(O_DIRECT)
247 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
248 #endif
249 { 0, 0, 0, 0 }
250 };
251
252 #define COPY_UTSNAME_FIELD(dest, src) \
253 do { \
254 /* __NEW_UTS_LEN doesn't include terminating null */ \
255 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
256 (dest)[__NEW_UTS_LEN] = '\0'; \
257 } while (0)
258
259 static int sys_uname(struct new_utsname *buf)
260 {
261 struct utsname uts_buf;
262
263 if (uname(&uts_buf) < 0)
264 return (-1);
265
266 /*
267 * Just in case these have some differences, we
268 * translate utsname to new_utsname (which is the
269 * struct linux kernel uses).
270 */
271
272 bzero(buf, sizeof (*buf));
273 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
274 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
275 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
276 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
277 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
278 #ifdef _GNU_SOURCE
279 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
280 #endif
281 return (0);
282
283 #undef COPY_UTSNAME_FIELD
284 }
285
286 static int sys_getcwd1(char *buf, size_t size)
287 {
288 if (getcwd(buf, size) == NULL) {
289 /* getcwd() sets errno */
290 return (-1);
291 }
292 return strlen(buf)+1;
293 }
294
295 #ifdef CONFIG_ATFILE
296 /*
297 * Host system seems to have atfile syscall stubs available. We
298 * now enable them one by one as specified by target syscall_nr.h.
299 */
300
301 #ifdef TARGET_NR_faccessat
302 static int sys_faccessat(int dirfd, const char *pathname, int mode)
303 {
304 return (faccessat(dirfd, pathname, mode, 0));
305 }
306 #endif
307 #ifdef TARGET_NR_fchmodat
308 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
309 {
310 return (fchmodat(dirfd, pathname, mode, 0));
311 }
312 #endif
313 #if defined(TARGET_NR_fchownat) && defined(USE_UID16)
314 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
315 gid_t group, int flags)
316 {
317 return (fchownat(dirfd, pathname, owner, group, flags));
318 }
319 #endif
320 #ifdef __NR_fstatat64
321 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
322 int flags)
323 {
324 return (fstatat(dirfd, pathname, buf, flags));
325 }
326 #endif
327 #ifdef __NR_newfstatat
328 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
329 int flags)
330 {
331 return (fstatat(dirfd, pathname, buf, flags));
332 }
333 #endif
334 #ifdef TARGET_NR_futimesat
335 static int sys_futimesat(int dirfd, const char *pathname,
336 const struct timeval times[2])
337 {
338 return (futimesat(dirfd, pathname, times));
339 }
340 #endif
341 #ifdef TARGET_NR_linkat
342 static int sys_linkat(int olddirfd, const char *oldpath,
343 int newdirfd, const char *newpath, int flags)
344 {
345 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
346 }
347 #endif
348 #ifdef TARGET_NR_mkdirat
349 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
350 {
351 return (mkdirat(dirfd, pathname, mode));
352 }
353 #endif
354 #ifdef TARGET_NR_mknodat
355 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
356 dev_t dev)
357 {
358 return (mknodat(dirfd, pathname, mode, dev));
359 }
360 #endif
361 #ifdef TARGET_NR_openat
362 static int sys_openat(int dirfd, const char *pathname, int flags, ...)
363 {
364 /*
365 * open(2) has extra parameter 'mode' when called with
366 * flag O_CREAT.
367 */
368 if ((flags & O_CREAT) != 0) {
369 va_list ap;
370 mode_t mode;
371
372 /*
373 * Get the 'mode' parameter and translate it to
374 * host bits.
375 */
376 va_start(ap, flags);
377 mode = va_arg(ap, mode_t);
378 mode = target_to_host_bitmask(mode, fcntl_flags_tbl);
379 va_end(ap);
380
381 return (openat(dirfd, pathname, flags, mode));
382 }
383 return (openat(dirfd, pathname, flags));
384 }
385 #endif
386 #ifdef TARGET_NR_readlinkat
387 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
388 {
389 return (readlinkat(dirfd, pathname, buf, bufsiz));
390 }
391 #endif
392 #ifdef TARGET_NR_renameat
393 static int sys_renameat(int olddirfd, const char *oldpath,
394 int newdirfd, const char *newpath)
395 {
396 return (renameat(olddirfd, oldpath, newdirfd, newpath));
397 }
398 #endif
399 #ifdef TARGET_NR_symlinkat
400 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
401 {
402 return (symlinkat(oldpath, newdirfd, newpath));
403 }
404 #endif
405 #ifdef TARGET_NR_unlinkat
406 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
407 {
408 return (unlinkat(dirfd, pathname, flags));
409 }
410 #endif
411 #else /* !CONFIG_ATFILE */
412
413 /*
414 * Try direct syscalls instead
415 */
416 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
417 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
418 #endif
419 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
420 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
421 #endif
422 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
423 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
424 uid_t,owner,gid_t,group,int,flags)
425 #endif
426 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
427 defined(__NR_fstatat64)
428 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
429 struct stat *,buf,int,flags)
430 #endif
431 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
432 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
433 const struct timeval *,times)
434 #endif
435 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
436 defined(__NR_newfstatat)
437 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
438 struct stat *,buf,int,flags)
439 #endif
440 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
441 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
442 int,newdirfd,const char *,newpath,int,flags)
443 #endif
444 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
445 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
446 #endif
447 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
448 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
449 mode_t,mode,dev_t,dev)
450 #endif
451 #if defined(TARGET_NR_openat) && defined(__NR_openat)
452 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
453 #endif
454 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
455 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
456 char *,buf,size_t,bufsize)
457 #endif
458 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
459 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
460 int,newdirfd,const char *,newpath)
461 #endif
462 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
463 _syscall3(int,sys_symlinkat,const char *,oldpath,
464 int,newdirfd,const char *,newpath)
465 #endif
466 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
467 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
468 #endif
469
470 #endif /* CONFIG_ATFILE */
471
472 #ifdef CONFIG_UTIMENSAT
473 static int sys_utimensat(int dirfd, const char *pathname,
474 const struct timespec times[2], int flags)
475 {
476 if (pathname == NULL)
477 return futimens(dirfd, times);
478 else
479 return utimensat(dirfd, pathname, times, flags);
480 }
481 #else
482 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
483 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
484 const struct timespec *,tsp,int,flags)
485 #endif
486 #endif /* CONFIG_UTIMENSAT */
487
488 #ifdef CONFIG_INOTIFY
489 #include <sys/inotify.h>
490
491 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
492 static int sys_inotify_init(void)
493 {
494 return (inotify_init());
495 }
496 #endif
497 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
498 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
499 {
500 return (inotify_add_watch(fd, pathname, mask));
501 }
502 #endif
503 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
504 static int sys_inotify_rm_watch(int fd, int32_t wd)
505 {
506 return (inotify_rm_watch(fd, wd));
507 }
508 #endif
509 #else
510 /* Userspace can usually survive runtime without inotify */
511 #undef TARGET_NR_inotify_init
512 #undef TARGET_NR_inotify_add_watch
513 #undef TARGET_NR_inotify_rm_watch
514 #endif /* CONFIG_INOTIFY */
515
516
517 extern int personality(int);
518 extern int flock(int, int);
519 extern int setfsuid(int);
520 extern int setfsgid(int);
521 extern int setgroups(int, gid_t *);
522
523 #define ERRNO_TABLE_SIZE 1200
524
525 /* target_to_host_errno_table[] is initialized from
526 * host_to_target_errno_table[] in syscall_init(). */
527 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
528 };
529
530 /*
531 * This list is the union of errno values overridden in asm-<arch>/errno.h
532 * minus the errnos that are not actually generic to all archs.
533 */
534 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
535 [EIDRM] = TARGET_EIDRM,
536 [ECHRNG] = TARGET_ECHRNG,
537 [EL2NSYNC] = TARGET_EL2NSYNC,
538 [EL3HLT] = TARGET_EL3HLT,
539 [EL3RST] = TARGET_EL3RST,
540 [ELNRNG] = TARGET_ELNRNG,
541 [EUNATCH] = TARGET_EUNATCH,
542 [ENOCSI] = TARGET_ENOCSI,
543 [EL2HLT] = TARGET_EL2HLT,
544 [EDEADLK] = TARGET_EDEADLK,
545 [ENOLCK] = TARGET_ENOLCK,
546 [EBADE] = TARGET_EBADE,
547 [EBADR] = TARGET_EBADR,
548 [EXFULL] = TARGET_EXFULL,
549 [ENOANO] = TARGET_ENOANO,
550 [EBADRQC] = TARGET_EBADRQC,
551 [EBADSLT] = TARGET_EBADSLT,
552 [EBFONT] = TARGET_EBFONT,
553 [ENOSTR] = TARGET_ENOSTR,
554 [ENODATA] = TARGET_ENODATA,
555 [ETIME] = TARGET_ETIME,
556 [ENOSR] = TARGET_ENOSR,
557 [ENONET] = TARGET_ENONET,
558 [ENOPKG] = TARGET_ENOPKG,
559 [EREMOTE] = TARGET_EREMOTE,
560 [ENOLINK] = TARGET_ENOLINK,
561 [EADV] = TARGET_EADV,
562 [ESRMNT] = TARGET_ESRMNT,
563 [ECOMM] = TARGET_ECOMM,
564 [EPROTO] = TARGET_EPROTO,
565 [EDOTDOT] = TARGET_EDOTDOT,
566 [EMULTIHOP] = TARGET_EMULTIHOP,
567 [EBADMSG] = TARGET_EBADMSG,
568 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
569 [EOVERFLOW] = TARGET_EOVERFLOW,
570 [ENOTUNIQ] = TARGET_ENOTUNIQ,
571 [EBADFD] = TARGET_EBADFD,
572 [EREMCHG] = TARGET_EREMCHG,
573 [ELIBACC] = TARGET_ELIBACC,
574 [ELIBBAD] = TARGET_ELIBBAD,
575 [ELIBSCN] = TARGET_ELIBSCN,
576 [ELIBMAX] = TARGET_ELIBMAX,
577 [ELIBEXEC] = TARGET_ELIBEXEC,
578 [EILSEQ] = TARGET_EILSEQ,
579 [ENOSYS] = TARGET_ENOSYS,
580 [ELOOP] = TARGET_ELOOP,
581 [ERESTART] = TARGET_ERESTART,
582 [ESTRPIPE] = TARGET_ESTRPIPE,
583 [ENOTEMPTY] = TARGET_ENOTEMPTY,
584 [EUSERS] = TARGET_EUSERS,
585 [ENOTSOCK] = TARGET_ENOTSOCK,
586 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
587 [EMSGSIZE] = TARGET_EMSGSIZE,
588 [EPROTOTYPE] = TARGET_EPROTOTYPE,
589 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
590 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
591 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
592 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
593 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
594 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
595 [EADDRINUSE] = TARGET_EADDRINUSE,
596 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
597 [ENETDOWN] = TARGET_ENETDOWN,
598 [ENETUNREACH] = TARGET_ENETUNREACH,
599 [ENETRESET] = TARGET_ENETRESET,
600 [ECONNABORTED] = TARGET_ECONNABORTED,
601 [ECONNRESET] = TARGET_ECONNRESET,
602 [ENOBUFS] = TARGET_ENOBUFS,
603 [EISCONN] = TARGET_EISCONN,
604 [ENOTCONN] = TARGET_ENOTCONN,
605 [EUCLEAN] = TARGET_EUCLEAN,
606 [ENOTNAM] = TARGET_ENOTNAM,
607 [ENAVAIL] = TARGET_ENAVAIL,
608 [EISNAM] = TARGET_EISNAM,
609 [EREMOTEIO] = TARGET_EREMOTEIO,
610 [ESHUTDOWN] = TARGET_ESHUTDOWN,
611 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
612 [ETIMEDOUT] = TARGET_ETIMEDOUT,
613 [ECONNREFUSED] = TARGET_ECONNREFUSED,
614 [EHOSTDOWN] = TARGET_EHOSTDOWN,
615 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
616 [EALREADY] = TARGET_EALREADY,
617 [EINPROGRESS] = TARGET_EINPROGRESS,
618 [ESTALE] = TARGET_ESTALE,
619 [ECANCELED] = TARGET_ECANCELED,
620 [ENOMEDIUM] = TARGET_ENOMEDIUM,
621 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
622 #ifdef ENOKEY
623 [ENOKEY] = TARGET_ENOKEY,
624 #endif
625 #ifdef EKEYEXPIRED
626 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
627 #endif
628 #ifdef EKEYREVOKED
629 [EKEYREVOKED] = TARGET_EKEYREVOKED,
630 #endif
631 #ifdef EKEYREJECTED
632 [EKEYREJECTED] = TARGET_EKEYREJECTED,
633 #endif
634 #ifdef EOWNERDEAD
635 [EOWNERDEAD] = TARGET_EOWNERDEAD,
636 #endif
637 #ifdef ENOTRECOVERABLE
638 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
639 #endif
640 };
641
642 static inline int host_to_target_errno(int err)
643 {
644 if(host_to_target_errno_table[err])
645 return host_to_target_errno_table[err];
646 return err;
647 }
648
649 static inline int target_to_host_errno(int err)
650 {
651 if (target_to_host_errno_table[err])
652 return target_to_host_errno_table[err];
653 return err;
654 }
655
656 static inline abi_long get_errno(abi_long ret)
657 {
658 if (ret == -1)
659 return -host_to_target_errno(errno);
660 else
661 return ret;
662 }
663
664 static inline int is_error(abi_long ret)
665 {
666 return (abi_ulong)ret >= (abi_ulong)(-4096);
667 }
668
669 char *target_strerror(int err)
670 {
671 return strerror(target_to_host_errno(err));
672 }
673
674 static abi_ulong target_brk;
675 static abi_ulong target_original_brk;
676
677 void target_set_brk(abi_ulong new_brk)
678 {
679 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
680 }
681
682 /* do_brk() must return target values and target errnos. */
683 abi_long do_brk(abi_ulong new_brk)
684 {
685 abi_ulong brk_page;
686 abi_long mapped_addr;
687 int new_alloc_size;
688
689 if (!new_brk)
690 return target_brk;
691 if (new_brk < target_original_brk)
692 return target_brk;
693
694 brk_page = HOST_PAGE_ALIGN(target_brk);
695
696 /* If the new brk is less than this, set it and we're done... */
697 if (new_brk < brk_page) {
698 target_brk = new_brk;
699 return target_brk;
700 }
701
702 /* We need to allocate more memory after the brk... */
703 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
704 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
705 PROT_READ|PROT_WRITE,
706 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
707
708 if (!is_error(mapped_addr))
709 target_brk = new_brk;
710
711 return target_brk;
712 }
713
714 static inline abi_long copy_from_user_fdset(fd_set *fds,
715 abi_ulong target_fds_addr,
716 int n)
717 {
718 int i, nw, j, k;
719 abi_ulong b, *target_fds;
720
721 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
722 if (!(target_fds = lock_user(VERIFY_READ,
723 target_fds_addr,
724 sizeof(abi_ulong) * nw,
725 1)))
726 return -TARGET_EFAULT;
727
728 FD_ZERO(fds);
729 k = 0;
730 for (i = 0; i < nw; i++) {
731 /* grab the abi_ulong */
732 __get_user(b, &target_fds[i]);
733 for (j = 0; j < TARGET_ABI_BITS; j++) {
734 /* check the bit inside the abi_ulong */
735 if ((b >> j) & 1)
736 FD_SET(k, fds);
737 k++;
738 }
739 }
740
741 unlock_user(target_fds, target_fds_addr, 0);
742
743 return 0;
744 }
745
746 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
747 const fd_set *fds,
748 int n)
749 {
750 int i, nw, j, k;
751 abi_long v;
752 abi_ulong *target_fds;
753
754 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
755 if (!(target_fds = lock_user(VERIFY_WRITE,
756 target_fds_addr,
757 sizeof(abi_ulong) * nw,
758 0)))
759 return -TARGET_EFAULT;
760
761 k = 0;
762 for (i = 0; i < nw; i++) {
763 v = 0;
764 for (j = 0; j < TARGET_ABI_BITS; j++) {
765 v |= ((FD_ISSET(k, fds) != 0) << j);
766 k++;
767 }
768 __put_user(v, &target_fds[i]);
769 }
770
771 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
772
773 return 0;
774 }
775
776 #if defined(__alpha__)
777 #define HOST_HZ 1024
778 #else
779 #define HOST_HZ 100
780 #endif
781
782 static inline abi_long host_to_target_clock_t(long ticks)
783 {
784 #if HOST_HZ == TARGET_HZ
785 return ticks;
786 #else
787 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
788 #endif
789 }
790
791 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
792 const struct rusage *rusage)
793 {
794 struct target_rusage *target_rusage;
795
796 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
797 return -TARGET_EFAULT;
798 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
799 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
800 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
801 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
802 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
803 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
804 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
805 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
806 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
807 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
808 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
809 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
810 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
811 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
812 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
813 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
814 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
815 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
816 unlock_user_struct(target_rusage, target_addr, 1);
817
818 return 0;
819 }
820
821 static inline abi_long copy_from_user_timeval(struct timeval *tv,
822 abi_ulong target_tv_addr)
823 {
824 struct target_timeval *target_tv;
825
826 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
827 return -TARGET_EFAULT;
828
829 __get_user(tv->tv_sec, &target_tv->tv_sec);
830 __get_user(tv->tv_usec, &target_tv->tv_usec);
831
832 unlock_user_struct(target_tv, target_tv_addr, 0);
833
834 return 0;
835 }
836
837 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
838 const struct timeval *tv)
839 {
840 struct target_timeval *target_tv;
841
842 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
843 return -TARGET_EFAULT;
844
845 __put_user(tv->tv_sec, &target_tv->tv_sec);
846 __put_user(tv->tv_usec, &target_tv->tv_usec);
847
848 unlock_user_struct(target_tv, target_tv_addr, 1);
849
850 return 0;
851 }
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
891 /* do_select() must return target values and target errnos. */
892 static abi_long do_select(int n,
893 abi_ulong rfd_addr, abi_ulong wfd_addr,
894 abi_ulong efd_addr, abi_ulong target_tv_addr)
895 {
896 fd_set rfds, wfds, efds;
897 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
898 struct timeval tv, *tv_ptr;
899 abi_long ret;
900
901 if (rfd_addr) {
902 if (copy_from_user_fdset(&rfds, rfd_addr, n))
903 return -TARGET_EFAULT;
904 rfds_ptr = &rfds;
905 } else {
906 rfds_ptr = NULL;
907 }
908 if (wfd_addr) {
909 if (copy_from_user_fdset(&wfds, wfd_addr, n))
910 return -TARGET_EFAULT;
911 wfds_ptr = &wfds;
912 } else {
913 wfds_ptr = NULL;
914 }
915 if (efd_addr) {
916 if (copy_from_user_fdset(&efds, efd_addr, n))
917 return -TARGET_EFAULT;
918 efds_ptr = &efds;
919 } else {
920 efds_ptr = NULL;
921 }
922
923 if (target_tv_addr) {
924 if (copy_from_user_timeval(&tv, target_tv_addr))
925 return -TARGET_EFAULT;
926 tv_ptr = &tv;
927 } else {
928 tv_ptr = NULL;
929 }
930
931 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
932
933 if (!is_error(ret)) {
934 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
935 return -TARGET_EFAULT;
936 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
937 return -TARGET_EFAULT;
938 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
939 return -TARGET_EFAULT;
940
941 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
942 return -TARGET_EFAULT;
943 }
944
945 return ret;
946 }
947
948 static abi_long do_pipe2(int host_pipe[], int flags)
949 {
950 #ifdef CONFIG_PIPE2
951 return pipe2(host_pipe, flags);
952 #else
953 return -ENOSYS;
954 #endif
955 }
956
957 static abi_long do_pipe(void *cpu_env, int pipedes, int flags)
958 {
959 int host_pipe[2];
960 abi_long ret;
961 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
962
963 if (is_error(ret))
964 return get_errno(ret);
965 #if defined(TARGET_MIPS)
966 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
967 ret = host_pipe[0];
968 #elif defined(TARGET_SH4)
969 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
970 ret = host_pipe[0];
971 #else
972 if (put_user_s32(host_pipe[0], pipedes)
973 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
974 return -TARGET_EFAULT;
975 #endif
976 return get_errno(ret);
977 }
978
979 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
980 abi_ulong target_addr,
981 socklen_t len)
982 {
983 struct target_ip_mreqn *target_smreqn;
984
985 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
986 if (!target_smreqn)
987 return -TARGET_EFAULT;
988 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
989 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
990 if (len == sizeof(struct target_ip_mreqn))
991 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex);
992 unlock_user(target_smreqn, target_addr, 0);
993
994 return 0;
995 }
996
997 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
998 abi_ulong target_addr,
999 socklen_t len)
1000 {
1001 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1002 sa_family_t sa_family;
1003 struct target_sockaddr *target_saddr;
1004
1005 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1006 if (!target_saddr)
1007 return -TARGET_EFAULT;
1008
1009 sa_family = tswap16(target_saddr->sa_family);
1010
1011 /* Oops. The caller might send a incomplete sun_path; sun_path
1012 * must be terminated by \0 (see the manual page), but
1013 * unfortunately it is quite common to specify sockaddr_un
1014 * length as "strlen(x->sun_path)" while it should be
1015 * "strlen(...) + 1". We'll fix that here if needed.
1016 * Linux kernel has a similar feature.
1017 */
1018
1019 if (sa_family == AF_UNIX) {
1020 if (len < unix_maxlen && len > 0) {
1021 char *cp = (char*)target_saddr;
1022
1023 if ( cp[len-1] && !cp[len] )
1024 len++;
1025 }
1026 if (len > unix_maxlen)
1027 len = unix_maxlen;
1028 }
1029
1030 memcpy(addr, target_saddr, len);
1031 addr->sa_family = sa_family;
1032 unlock_user(target_saddr, target_addr, 0);
1033
1034 return 0;
1035 }
1036
1037 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1038 struct sockaddr *addr,
1039 socklen_t len)
1040 {
1041 struct target_sockaddr *target_saddr;
1042
1043 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1044 if (!target_saddr)
1045 return -TARGET_EFAULT;
1046 memcpy(target_saddr, addr, len);
1047 target_saddr->sa_family = tswap16(addr->sa_family);
1048 unlock_user(target_saddr, target_addr, len);
1049
1050 return 0;
1051 }
1052
1053 /* ??? Should this also swap msgh->name? */
1054 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1055 struct target_msghdr *target_msgh)
1056 {
1057 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1058 abi_long msg_controllen;
1059 abi_ulong target_cmsg_addr;
1060 struct target_cmsghdr *target_cmsg;
1061 socklen_t space = 0;
1062
1063 msg_controllen = tswapl(target_msgh->msg_controllen);
1064 if (msg_controllen < sizeof (struct target_cmsghdr))
1065 goto the_end;
1066 target_cmsg_addr = tswapl(target_msgh->msg_control);
1067 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1068 if (!target_cmsg)
1069 return -TARGET_EFAULT;
1070
1071 while (cmsg && target_cmsg) {
1072 void *data = CMSG_DATA(cmsg);
1073 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1074
1075 int len = tswapl(target_cmsg->cmsg_len)
1076 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1077
1078 space += CMSG_SPACE(len);
1079 if (space > msgh->msg_controllen) {
1080 space -= CMSG_SPACE(len);
1081 gemu_log("Host cmsg overflow\n");
1082 break;
1083 }
1084
1085 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1086 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1087 cmsg->cmsg_len = CMSG_LEN(len);
1088
1089 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1090 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1091 memcpy(data, target_data, len);
1092 } else {
1093 int *fd = (int *)data;
1094 int *target_fd = (int *)target_data;
1095 int i, numfds = len / sizeof(int);
1096
1097 for (i = 0; i < numfds; i++)
1098 fd[i] = tswap32(target_fd[i]);
1099 }
1100
1101 cmsg = CMSG_NXTHDR(msgh, cmsg);
1102 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1103 }
1104 unlock_user(target_cmsg, target_cmsg_addr, 0);
1105 the_end:
1106 msgh->msg_controllen = space;
1107 return 0;
1108 }
1109
1110 /* ??? Should this also swap msgh->name? */
1111 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1112 struct msghdr *msgh)
1113 {
1114 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1115 abi_long msg_controllen;
1116 abi_ulong target_cmsg_addr;
1117 struct target_cmsghdr *target_cmsg;
1118 socklen_t space = 0;
1119
1120 msg_controllen = tswapl(target_msgh->msg_controllen);
1121 if (msg_controllen < sizeof (struct target_cmsghdr))
1122 goto the_end;
1123 target_cmsg_addr = tswapl(target_msgh->msg_control);
1124 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1125 if (!target_cmsg)
1126 return -TARGET_EFAULT;
1127
1128 while (cmsg && target_cmsg) {
1129 void *data = CMSG_DATA(cmsg);
1130 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1131
1132 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1133
1134 space += TARGET_CMSG_SPACE(len);
1135 if (space > msg_controllen) {
1136 space -= TARGET_CMSG_SPACE(len);
1137 gemu_log("Target cmsg overflow\n");
1138 break;
1139 }
1140
1141 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1142 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1143 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
1144
1145 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1146 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1147 memcpy(target_data, data, len);
1148 } else {
1149 int *fd = (int *)data;
1150 int *target_fd = (int *)target_data;
1151 int i, numfds = len / sizeof(int);
1152
1153 for (i = 0; i < numfds; i++)
1154 target_fd[i] = tswap32(fd[i]);
1155 }
1156
1157 cmsg = CMSG_NXTHDR(msgh, cmsg);
1158 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1159 }
1160 unlock_user(target_cmsg, target_cmsg_addr, space);
1161 the_end:
1162 target_msgh->msg_controllen = tswapl(space);
1163 return 0;
1164 }
1165
1166 /* do_setsockopt() Must return target values and target errnos. */
1167 static abi_long do_setsockopt(int sockfd, int level, int optname,
1168 abi_ulong optval_addr, socklen_t optlen)
1169 {
1170 abi_long ret;
1171 int val;
1172 struct ip_mreqn *ip_mreq;
1173 struct ip_mreq_source *ip_mreq_source;
1174
1175 switch(level) {
1176 case SOL_TCP:
1177 /* TCP options all take an 'int' value. */
1178 if (optlen < sizeof(uint32_t))
1179 return -TARGET_EINVAL;
1180
1181 if (get_user_u32(val, optval_addr))
1182 return -TARGET_EFAULT;
1183 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1184 break;
1185 case SOL_IP:
1186 switch(optname) {
1187 case IP_TOS:
1188 case IP_TTL:
1189 case IP_HDRINCL:
1190 case IP_ROUTER_ALERT:
1191 case IP_RECVOPTS:
1192 case IP_RETOPTS:
1193 case IP_PKTINFO:
1194 case IP_MTU_DISCOVER:
1195 case IP_RECVERR:
1196 case IP_RECVTOS:
1197 #ifdef IP_FREEBIND
1198 case IP_FREEBIND:
1199 #endif
1200 case IP_MULTICAST_TTL:
1201 case IP_MULTICAST_LOOP:
1202 val = 0;
1203 if (optlen >= sizeof(uint32_t)) {
1204 if (get_user_u32(val, optval_addr))
1205 return -TARGET_EFAULT;
1206 } else if (optlen >= 1) {
1207 if (get_user_u8(val, optval_addr))
1208 return -TARGET_EFAULT;
1209 }
1210 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1211 break;
1212 case IP_ADD_MEMBERSHIP:
1213 case IP_DROP_MEMBERSHIP:
1214 if (optlen < sizeof (struct target_ip_mreq) ||
1215 optlen > sizeof (struct target_ip_mreqn))
1216 return -TARGET_EINVAL;
1217
1218 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1219 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1220 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1221 break;
1222
1223 case IP_BLOCK_SOURCE:
1224 case IP_UNBLOCK_SOURCE:
1225 case IP_ADD_SOURCE_MEMBERSHIP:
1226 case IP_DROP_SOURCE_MEMBERSHIP:
1227 if (optlen != sizeof (struct target_ip_mreq_source))
1228 return -TARGET_EINVAL;
1229
1230 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1231 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1232 unlock_user (ip_mreq_source, optval_addr, 0);
1233 break;
1234
1235 default:
1236 goto unimplemented;
1237 }
1238 break;
1239 case TARGET_SOL_SOCKET:
1240 switch (optname) {
1241 /* Options with 'int' argument. */
1242 case TARGET_SO_DEBUG:
1243 optname = SO_DEBUG;
1244 break;
1245 case TARGET_SO_REUSEADDR:
1246 optname = SO_REUSEADDR;
1247 break;
1248 case TARGET_SO_TYPE:
1249 optname = SO_TYPE;
1250 break;
1251 case TARGET_SO_ERROR:
1252 optname = SO_ERROR;
1253 break;
1254 case TARGET_SO_DONTROUTE:
1255 optname = SO_DONTROUTE;
1256 break;
1257 case TARGET_SO_BROADCAST:
1258 optname = SO_BROADCAST;
1259 break;
1260 case TARGET_SO_SNDBUF:
1261 optname = SO_SNDBUF;
1262 break;
1263 case TARGET_SO_RCVBUF:
1264 optname = SO_RCVBUF;
1265 break;
1266 case TARGET_SO_KEEPALIVE:
1267 optname = SO_KEEPALIVE;
1268 break;
1269 case TARGET_SO_OOBINLINE:
1270 optname = SO_OOBINLINE;
1271 break;
1272 case TARGET_SO_NO_CHECK:
1273 optname = SO_NO_CHECK;
1274 break;
1275 case TARGET_SO_PRIORITY:
1276 optname = SO_PRIORITY;
1277 break;
1278 #ifdef SO_BSDCOMPAT
1279 case TARGET_SO_BSDCOMPAT:
1280 optname = SO_BSDCOMPAT;
1281 break;
1282 #endif
1283 case TARGET_SO_PASSCRED:
1284 optname = SO_PASSCRED;
1285 break;
1286 case TARGET_SO_TIMESTAMP:
1287 optname = SO_TIMESTAMP;
1288 break;
1289 case TARGET_SO_RCVLOWAT:
1290 optname = SO_RCVLOWAT;
1291 break;
1292 case TARGET_SO_RCVTIMEO:
1293 optname = SO_RCVTIMEO;
1294 break;
1295 case TARGET_SO_SNDTIMEO:
1296 optname = SO_SNDTIMEO;
1297 break;
1298 break;
1299 default:
1300 goto unimplemented;
1301 }
1302 if (optlen < sizeof(uint32_t))
1303 return -TARGET_EINVAL;
1304
1305 if (get_user_u32(val, optval_addr))
1306 return -TARGET_EFAULT;
1307 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1308 break;
1309 default:
1310 unimplemented:
1311 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
1312 ret = -TARGET_ENOPROTOOPT;
1313 }
1314 return ret;
1315 }
1316
1317 /* do_getsockopt() Must return target values and target errnos. */
1318 static abi_long do_getsockopt(int sockfd, int level, int optname,
1319 abi_ulong optval_addr, abi_ulong optlen)
1320 {
1321 abi_long ret;
1322 int len, val;
1323 socklen_t lv;
1324
1325 switch(level) {
1326 case TARGET_SOL_SOCKET:
1327 level = SOL_SOCKET;
1328 switch (optname) {
1329 case TARGET_SO_LINGER:
1330 case TARGET_SO_RCVTIMEO:
1331 case TARGET_SO_SNDTIMEO:
1332 case TARGET_SO_PEERCRED:
1333 case TARGET_SO_PEERNAME:
1334 /* These don't just return a single integer */
1335 goto unimplemented;
1336 default:
1337 goto int_case;
1338 }
1339 break;
1340 case SOL_TCP:
1341 /* TCP options all take an 'int' value. */
1342 int_case:
1343 if (get_user_u32(len, optlen))
1344 return -TARGET_EFAULT;
1345 if (len < 0)
1346 return -TARGET_EINVAL;
1347 lv = sizeof(int);
1348 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1349 if (ret < 0)
1350 return ret;
1351 if (len > lv)
1352 len = lv;
1353 if (len == 4) {
1354 if (put_user_u32(val, optval_addr))
1355 return -TARGET_EFAULT;
1356 } else {
1357 if (put_user_u8(val, optval_addr))
1358 return -TARGET_EFAULT;
1359 }
1360 if (put_user_u32(len, optlen))
1361 return -TARGET_EFAULT;
1362 break;
1363 case SOL_IP:
1364 switch(optname) {
1365 case IP_TOS:
1366 case IP_TTL:
1367 case IP_HDRINCL:
1368 case IP_ROUTER_ALERT:
1369 case IP_RECVOPTS:
1370 case IP_RETOPTS:
1371 case IP_PKTINFO:
1372 case IP_MTU_DISCOVER:
1373 case IP_RECVERR:
1374 case IP_RECVTOS:
1375 #ifdef IP_FREEBIND
1376 case IP_FREEBIND:
1377 #endif
1378 case IP_MULTICAST_TTL:
1379 case IP_MULTICAST_LOOP:
1380 if (get_user_u32(len, optlen))
1381 return -TARGET_EFAULT;
1382 if (len < 0)
1383 return -TARGET_EINVAL;
1384 lv = sizeof(int);
1385 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1386 if (ret < 0)
1387 return ret;
1388 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1389 len = 1;
1390 if (put_user_u32(len, optlen)
1391 || put_user_u8(val, optval_addr))
1392 return -TARGET_EFAULT;
1393 } else {
1394 if (len > sizeof(int))
1395 len = sizeof(int);
1396 if (put_user_u32(len, optlen)
1397 || put_user_u32(val, optval_addr))
1398 return -TARGET_EFAULT;
1399 }
1400 break;
1401 default:
1402 ret = -TARGET_ENOPROTOOPT;
1403 break;
1404 }
1405 break;
1406 default:
1407 unimplemented:
1408 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1409 level, optname);
1410 ret = -TARGET_EOPNOTSUPP;
1411 break;
1412 }
1413 return ret;
1414 }
1415
1416 /* FIXME
1417 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1418 * other lock functions have a return code of 0 for failure.
1419 */
1420 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1421 int count, int copy)
1422 {
1423 struct target_iovec *target_vec;
1424 abi_ulong base;
1425 int i;
1426
1427 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1428 if (!target_vec)
1429 return -TARGET_EFAULT;
1430 for(i = 0;i < count; i++) {
1431 base = tswapl(target_vec[i].iov_base);
1432 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1433 if (vec[i].iov_len != 0) {
1434 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1435 /* Don't check lock_user return value. We must call writev even
1436 if a element has invalid base address. */
1437 } else {
1438 /* zero length pointer is ignored */
1439 vec[i].iov_base = NULL;
1440 }
1441 }
1442 unlock_user (target_vec, target_addr, 0);
1443 return 0;
1444 }
1445
1446 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1447 int count, int copy)
1448 {
1449 struct target_iovec *target_vec;
1450 abi_ulong base;
1451 int i;
1452
1453 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1454 if (!target_vec)
1455 return -TARGET_EFAULT;
1456 for(i = 0;i < count; i++) {
1457 if (target_vec[i].iov_base) {
1458 base = tswapl(target_vec[i].iov_base);
1459 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1460 }
1461 }
1462 unlock_user (target_vec, target_addr, 0);
1463
1464 return 0;
1465 }
1466
1467 /* do_socket() Must return target values and target errnos. */
1468 static abi_long do_socket(int domain, int type, int protocol)
1469 {
1470 #if defined(TARGET_MIPS)
1471 switch(type) {
1472 case TARGET_SOCK_DGRAM:
1473 type = SOCK_DGRAM;
1474 break;
1475 case TARGET_SOCK_STREAM:
1476 type = SOCK_STREAM;
1477 break;
1478 case TARGET_SOCK_RAW:
1479 type = SOCK_RAW;
1480 break;
1481 case TARGET_SOCK_RDM:
1482 type = SOCK_RDM;
1483 break;
1484 case TARGET_SOCK_SEQPACKET:
1485 type = SOCK_SEQPACKET;
1486 break;
1487 case TARGET_SOCK_PACKET:
1488 type = SOCK_PACKET;
1489 break;
1490 }
1491 #endif
1492 if (domain == PF_NETLINK)
1493 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1494 return get_errno(socket(domain, type, protocol));
1495 }
1496
1497 /* do_bind() Must return target values and target errnos. */
1498 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1499 socklen_t addrlen)
1500 {
1501 void *addr;
1502
1503 if (addrlen < 0)
1504 return -TARGET_EINVAL;
1505
1506 addr = alloca(addrlen+1);
1507
1508 target_to_host_sockaddr(addr, target_addr, addrlen);
1509 return get_errno(bind(sockfd, addr, addrlen));
1510 }
1511
1512 /* do_connect() Must return target values and target errnos. */
1513 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1514 socklen_t addrlen)
1515 {
1516 void *addr;
1517
1518 if (addrlen < 0)
1519 return -TARGET_EINVAL;
1520
1521 addr = alloca(addrlen);
1522
1523 target_to_host_sockaddr(addr, target_addr, addrlen);
1524 return get_errno(connect(sockfd, addr, addrlen));
1525 }
1526
1527 /* do_sendrecvmsg() Must return target values and target errnos. */
1528 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1529 int flags, int send)
1530 {
1531 abi_long ret, len;
1532 struct target_msghdr *msgp;
1533 struct msghdr msg;
1534 int count;
1535 struct iovec *vec;
1536 abi_ulong target_vec;
1537
1538 /* FIXME */
1539 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1540 msgp,
1541 target_msg,
1542 send ? 1 : 0))
1543 return -TARGET_EFAULT;
1544 if (msgp->msg_name) {
1545 msg.msg_namelen = tswap32(msgp->msg_namelen);
1546 msg.msg_name = alloca(msg.msg_namelen);
1547 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1548 msg.msg_namelen);
1549 } else {
1550 msg.msg_name = NULL;
1551 msg.msg_namelen = 0;
1552 }
1553 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1554 msg.msg_control = alloca(msg.msg_controllen);
1555 msg.msg_flags = tswap32(msgp->msg_flags);
1556
1557 count = tswapl(msgp->msg_iovlen);
1558 vec = alloca(count * sizeof(struct iovec));
1559 target_vec = tswapl(msgp->msg_iov);
1560 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1561 msg.msg_iovlen = count;
1562 msg.msg_iov = vec;
1563
1564 if (send) {
1565 ret = target_to_host_cmsg(&msg, msgp);
1566 if (ret == 0)
1567 ret = get_errno(sendmsg(fd, &msg, flags));
1568 } else {
1569 ret = get_errno(recvmsg(fd, &msg, flags));
1570 if (!is_error(ret)) {
1571 len = ret;
1572 ret = host_to_target_cmsg(msgp, &msg);
1573 if (!is_error(ret))
1574 ret = len;
1575 }
1576 }
1577 unlock_iovec(vec, target_vec, count, !send);
1578 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1579 return ret;
1580 }
1581
1582 /* do_accept() Must return target values and target errnos. */
1583 static abi_long do_accept(int fd, abi_ulong target_addr,
1584 abi_ulong target_addrlen_addr)
1585 {
1586 socklen_t addrlen;
1587 void *addr;
1588 abi_long ret;
1589
1590 if (get_user_u32(addrlen, target_addrlen_addr))
1591 return -TARGET_EFAULT;
1592
1593 if (addrlen < 0)
1594 return -TARGET_EINVAL;
1595
1596 addr = alloca(addrlen);
1597
1598 ret = get_errno(accept(fd, addr, &addrlen));
1599 if (!is_error(ret)) {
1600 host_to_target_sockaddr(target_addr, addr, addrlen);
1601 if (put_user_u32(addrlen, target_addrlen_addr))
1602 ret = -TARGET_EFAULT;
1603 }
1604 return ret;
1605 }
1606
1607 /* do_getpeername() Must return target values and target errnos. */
1608 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1609 abi_ulong target_addrlen_addr)
1610 {
1611 socklen_t addrlen;
1612 void *addr;
1613 abi_long ret;
1614
1615 if (get_user_u32(addrlen, target_addrlen_addr))
1616 return -TARGET_EFAULT;
1617
1618 if (addrlen < 0)
1619 return -TARGET_EINVAL;
1620
1621 addr = alloca(addrlen);
1622
1623 ret = get_errno(getpeername(fd, addr, &addrlen));
1624 if (!is_error(ret)) {
1625 host_to_target_sockaddr(target_addr, addr, addrlen);
1626 if (put_user_u32(addrlen, target_addrlen_addr))
1627 ret = -TARGET_EFAULT;
1628 }
1629 return ret;
1630 }
1631
1632 /* do_getsockname() Must return target values and target errnos. */
1633 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1634 abi_ulong target_addrlen_addr)
1635 {
1636 socklen_t addrlen;
1637 void *addr;
1638 abi_long ret;
1639
1640 if (target_addr == 0)
1641 return get_errno(accept(fd, NULL, NULL));
1642
1643 if (get_user_u32(addrlen, target_addrlen_addr))
1644 return -TARGET_EFAULT;
1645
1646 if (addrlen < 0)
1647 return -TARGET_EINVAL;
1648
1649 addr = alloca(addrlen);
1650
1651 ret = get_errno(getsockname(fd, addr, &addrlen));
1652 if (!is_error(ret)) {
1653 host_to_target_sockaddr(target_addr, addr, addrlen);
1654 if (put_user_u32(addrlen, target_addrlen_addr))
1655 ret = -TARGET_EFAULT;
1656 }
1657 return ret;
1658 }
1659
1660 /* do_socketpair() Must return target values and target errnos. */
1661 static abi_long do_socketpair(int domain, int type, int protocol,
1662 abi_ulong target_tab_addr)
1663 {
1664 int tab[2];
1665 abi_long ret;
1666
1667 ret = get_errno(socketpair(domain, type, protocol, tab));
1668 if (!is_error(ret)) {
1669 if (put_user_s32(tab[0], target_tab_addr)
1670 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1671 ret = -TARGET_EFAULT;
1672 }
1673 return ret;
1674 }
1675
1676 /* do_sendto() Must return target values and target errnos. */
1677 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1678 abi_ulong target_addr, socklen_t addrlen)
1679 {
1680 void *addr;
1681 void *host_msg;
1682 abi_long ret;
1683
1684 if (addrlen < 0)
1685 return -TARGET_EINVAL;
1686
1687 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1688 if (!host_msg)
1689 return -TARGET_EFAULT;
1690 if (target_addr) {
1691 addr = alloca(addrlen);
1692 target_to_host_sockaddr(addr, target_addr, addrlen);
1693 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1694 } else {
1695 ret = get_errno(send(fd, host_msg, len, flags));
1696 }
1697 unlock_user(host_msg, msg, 0);
1698 return ret;
1699 }
1700
1701 /* do_recvfrom() Must return target values and target errnos. */
1702 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1703 abi_ulong target_addr,
1704 abi_ulong target_addrlen)
1705 {
1706 socklen_t addrlen;
1707 void *addr;
1708 void *host_msg;
1709 abi_long ret;
1710
1711 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1712 if (!host_msg)
1713 return -TARGET_EFAULT;
1714 if (target_addr) {
1715 if (get_user_u32(addrlen, target_addrlen)) {
1716 ret = -TARGET_EFAULT;
1717 goto fail;
1718 }
1719 if (addrlen < 0) {
1720 ret = -TARGET_EINVAL;
1721 goto fail;
1722 }
1723 addr = alloca(addrlen);
1724 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1725 } else {
1726 addr = NULL; /* To keep compiler quiet. */
1727 ret = get_errno(recv(fd, host_msg, len, flags));
1728 }
1729 if (!is_error(ret)) {
1730 if (target_addr) {
1731 host_to_target_sockaddr(target_addr, addr, addrlen);
1732 if (put_user_u32(addrlen, target_addrlen)) {
1733 ret = -TARGET_EFAULT;
1734 goto fail;
1735 }
1736 }
1737 unlock_user(host_msg, msg, len);
1738 } else {
1739 fail:
1740 unlock_user(host_msg, msg, 0);
1741 }
1742 return ret;
1743 }
1744
1745 #ifdef TARGET_NR_socketcall
1746 /* do_socketcall() Must return target values and target errnos. */
1747 static abi_long do_socketcall(int num, abi_ulong vptr)
1748 {
1749 abi_long ret;
1750 const int n = sizeof(abi_ulong);
1751
1752 switch(num) {
1753 case SOCKOP_socket:
1754 {
1755 int domain, type, protocol;
1756
1757 if (get_user_s32(domain, vptr)
1758 || get_user_s32(type, vptr + n)
1759 || get_user_s32(protocol, vptr + 2 * n))
1760 return -TARGET_EFAULT;
1761
1762 ret = do_socket(domain, type, protocol);
1763 }
1764 break;
1765 case SOCKOP_bind:
1766 {
1767 int sockfd;
1768 abi_ulong target_addr;
1769 socklen_t addrlen;
1770
1771 if (get_user_s32(sockfd, vptr)
1772 || get_user_ual(target_addr, vptr + n)
1773 || get_user_u32(addrlen, vptr + 2 * n))
1774 return -TARGET_EFAULT;
1775
1776 ret = do_bind(sockfd, target_addr, addrlen);
1777 }
1778 break;
1779 case SOCKOP_connect:
1780 {
1781 int sockfd;
1782 abi_ulong target_addr;
1783 socklen_t addrlen;
1784
1785 if (get_user_s32(sockfd, vptr)
1786 || get_user_ual(target_addr, vptr + n)
1787 || get_user_u32(addrlen, vptr + 2 * n))
1788 return -TARGET_EFAULT;
1789
1790 ret = do_connect(sockfd, target_addr, addrlen);
1791 }
1792 break;
1793 case SOCKOP_listen:
1794 {
1795 int sockfd, backlog;
1796
1797 if (get_user_s32(sockfd, vptr)
1798 || get_user_s32(backlog, vptr + n))
1799 return -TARGET_EFAULT;
1800
1801 ret = get_errno(listen(sockfd, backlog));
1802 }
1803 break;
1804 case SOCKOP_accept:
1805 {
1806 int sockfd;
1807 abi_ulong target_addr, target_addrlen;
1808
1809 if (get_user_s32(sockfd, vptr)
1810 || get_user_ual(target_addr, vptr + n)
1811 || get_user_u32(target_addrlen, vptr + 2 * n))
1812 return -TARGET_EFAULT;
1813
1814 ret = do_accept(sockfd, target_addr, target_addrlen);
1815 }
1816 break;
1817 case SOCKOP_getsockname:
1818 {
1819 int sockfd;
1820 abi_ulong target_addr, target_addrlen;
1821
1822 if (get_user_s32(sockfd, vptr)
1823 || get_user_ual(target_addr, vptr + n)
1824 || get_user_u32(target_addrlen, vptr + 2 * n))
1825 return -TARGET_EFAULT;
1826
1827 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1828 }
1829 break;
1830 case SOCKOP_getpeername:
1831 {
1832 int sockfd;
1833 abi_ulong target_addr, target_addrlen;
1834
1835 if (get_user_s32(sockfd, vptr)
1836 || get_user_ual(target_addr, vptr + n)
1837 || get_user_u32(target_addrlen, vptr + 2 * n))
1838 return -TARGET_EFAULT;
1839
1840 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1841 }
1842 break;
1843 case SOCKOP_socketpair:
1844 {
1845 int domain, type, protocol;
1846 abi_ulong tab;
1847
1848 if (get_user_s32(domain, vptr)
1849 || get_user_s32(type, vptr + n)
1850 || get_user_s32(protocol, vptr + 2 * n)
1851 || get_user_ual(tab, vptr + 3 * n))
1852 return -TARGET_EFAULT;
1853
1854 ret = do_socketpair(domain, type, protocol, tab);
1855 }
1856 break;
1857 case SOCKOP_send:
1858 {
1859 int sockfd;
1860 abi_ulong msg;
1861 size_t len;
1862 int flags;
1863
1864 if (get_user_s32(sockfd, vptr)
1865 || get_user_ual(msg, vptr + n)
1866 || get_user_ual(len, vptr + 2 * n)
1867 || get_user_s32(flags, vptr + 3 * n))
1868 return -TARGET_EFAULT;
1869
1870 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1871 }
1872 break;
1873 case SOCKOP_recv:
1874 {
1875 int sockfd;
1876 abi_ulong msg;
1877 size_t len;
1878 int flags;
1879
1880 if (get_user_s32(sockfd, vptr)
1881 || get_user_ual(msg, vptr + n)
1882 || get_user_ual(len, vptr + 2 * n)
1883 || get_user_s32(flags, vptr + 3 * n))
1884 return -TARGET_EFAULT;
1885
1886 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1887 }
1888 break;
1889 case SOCKOP_sendto:
1890 {
1891 int sockfd;
1892 abi_ulong msg;
1893 size_t len;
1894 int flags;
1895 abi_ulong addr;
1896 socklen_t addrlen;
1897
1898 if (get_user_s32(sockfd, vptr)
1899 || get_user_ual(msg, vptr + n)
1900 || get_user_ual(len, vptr + 2 * n)
1901 || get_user_s32(flags, vptr + 3 * n)
1902 || get_user_ual(addr, vptr + 4 * n)
1903 || get_user_u32(addrlen, vptr + 5 * n))
1904 return -TARGET_EFAULT;
1905
1906 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1907 }
1908 break;
1909 case SOCKOP_recvfrom:
1910 {
1911 int sockfd;
1912 abi_ulong msg;
1913 size_t len;
1914 int flags;
1915 abi_ulong addr;
1916 socklen_t addrlen;
1917
1918 if (get_user_s32(sockfd, vptr)
1919 || get_user_ual(msg, vptr + n)
1920 || get_user_ual(len, vptr + 2 * n)
1921 || get_user_s32(flags, vptr + 3 * n)
1922 || get_user_ual(addr, vptr + 4 * n)
1923 || get_user_u32(addrlen, vptr + 5 * n))
1924 return -TARGET_EFAULT;
1925
1926 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1927 }
1928 break;
1929 case SOCKOP_shutdown:
1930 {
1931 int sockfd, how;
1932
1933 if (get_user_s32(sockfd, vptr)
1934 || get_user_s32(how, vptr + n))
1935 return -TARGET_EFAULT;
1936
1937 ret = get_errno(shutdown(sockfd, how));
1938 }
1939 break;
1940 case SOCKOP_sendmsg:
1941 case SOCKOP_recvmsg:
1942 {
1943 int fd;
1944 abi_ulong target_msg;
1945 int flags;
1946
1947 if (get_user_s32(fd, vptr)
1948 || get_user_ual(target_msg, vptr + n)
1949 || get_user_s32(flags, vptr + 2 * n))
1950 return -TARGET_EFAULT;
1951
1952 ret = do_sendrecvmsg(fd, target_msg, flags,
1953 (num == SOCKOP_sendmsg));
1954 }
1955 break;
1956 case SOCKOP_setsockopt:
1957 {
1958 int sockfd;
1959 int level;
1960 int optname;
1961 abi_ulong optval;
1962 socklen_t optlen;
1963
1964 if (get_user_s32(sockfd, vptr)
1965 || get_user_s32(level, vptr + n)
1966 || get_user_s32(optname, vptr + 2 * n)
1967 || get_user_ual(optval, vptr + 3 * n)
1968 || get_user_u32(optlen, vptr + 4 * n))
1969 return -TARGET_EFAULT;
1970
1971 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1972 }
1973 break;
1974 case SOCKOP_getsockopt:
1975 {
1976 int sockfd;
1977 int level;
1978 int optname;
1979 abi_ulong optval;
1980 socklen_t optlen;
1981
1982 if (get_user_s32(sockfd, vptr)
1983 || get_user_s32(level, vptr + n)
1984 || get_user_s32(optname, vptr + 2 * n)
1985 || get_user_ual(optval, vptr + 3 * n)
1986 || get_user_u32(optlen, vptr + 4 * n))
1987 return -TARGET_EFAULT;
1988
1989 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
1990 }
1991 break;
1992 default:
1993 gemu_log("Unsupported socketcall: %d\n", num);
1994 ret = -TARGET_ENOSYS;
1995 break;
1996 }
1997 return ret;
1998 }
1999 #endif
2000
2001 #define N_SHM_REGIONS 32
2002
2003 static struct shm_region {
2004 abi_ulong start;
2005 abi_ulong size;
2006 } shm_regions[N_SHM_REGIONS];
2007
2008 struct target_ipc_perm
2009 {
2010 abi_long __key;
2011 abi_ulong uid;
2012 abi_ulong gid;
2013 abi_ulong cuid;
2014 abi_ulong cgid;
2015 unsigned short int mode;
2016 unsigned short int __pad1;
2017 unsigned short int __seq;
2018 unsigned short int __pad2;
2019 abi_ulong __unused1;
2020 abi_ulong __unused2;
2021 };
2022
2023 struct target_semid_ds
2024 {
2025 struct target_ipc_perm sem_perm;
2026 abi_ulong sem_otime;
2027 abi_ulong __unused1;
2028 abi_ulong sem_ctime;
2029 abi_ulong __unused2;
2030 abi_ulong sem_nsems;
2031 abi_ulong __unused3;
2032 abi_ulong __unused4;
2033 };
2034
2035 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2036 abi_ulong target_addr)
2037 {
2038 struct target_ipc_perm *target_ip;
2039 struct target_semid_ds *target_sd;
2040
2041 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2042 return -TARGET_EFAULT;
2043 target_ip=&(target_sd->sem_perm);
2044 host_ip->__key = tswapl(target_ip->__key);
2045 host_ip->uid = tswapl(target_ip->uid);
2046 host_ip->gid = tswapl(target_ip->gid);
2047 host_ip->cuid = tswapl(target_ip->cuid);
2048 host_ip->cgid = tswapl(target_ip->cgid);
2049 host_ip->mode = tswapl(target_ip->mode);
2050 unlock_user_struct(target_sd, target_addr, 0);
2051 return 0;
2052 }
2053
2054 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2055 struct ipc_perm *host_ip)
2056 {
2057 struct target_ipc_perm *target_ip;
2058 struct target_semid_ds *target_sd;
2059
2060 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2061 return -TARGET_EFAULT;
2062 target_ip = &(target_sd->sem_perm);
2063 target_ip->__key = tswapl(host_ip->__key);
2064 target_ip->uid = tswapl(host_ip->uid);
2065 target_ip->gid = tswapl(host_ip->gid);
2066 target_ip->cuid = tswapl(host_ip->cuid);
2067 target_ip->cgid = tswapl(host_ip->cgid);
2068 target_ip->mode = tswapl(host_ip->mode);
2069 unlock_user_struct(target_sd, target_addr, 1);
2070 return 0;
2071 }
2072
2073 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2074 abi_ulong target_addr)
2075 {
2076 struct target_semid_ds *target_sd;
2077
2078 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2079 return -TARGET_EFAULT;
2080 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2081 return -TARGET_EFAULT;
2082 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
2083 host_sd->sem_otime = tswapl(target_sd->sem_otime);
2084 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
2085 unlock_user_struct(target_sd, target_addr, 0);
2086 return 0;
2087 }
2088
2089 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2090 struct semid_ds *host_sd)
2091 {
2092 struct target_semid_ds *target_sd;
2093
2094 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2095 return -TARGET_EFAULT;
2096 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2097 return -TARGET_EFAULT;;
2098 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
2099 target_sd->sem_otime = tswapl(host_sd->sem_otime);
2100 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
2101 unlock_user_struct(target_sd, target_addr, 1);
2102 return 0;
2103 }
2104
2105 struct target_seminfo {
2106 int semmap;
2107 int semmni;
2108 int semmns;
2109 int semmnu;
2110 int semmsl;
2111 int semopm;
2112 int semume;
2113 int semusz;
2114 int semvmx;
2115 int semaem;
2116 };
2117
2118 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2119 struct seminfo *host_seminfo)
2120 {
2121 struct target_seminfo *target_seminfo;
2122 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2123 return -TARGET_EFAULT;
2124 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2125 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2126 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2127 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2128 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2129 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2130 __put_user(host_seminfo->semume, &target_seminfo->semume);
2131 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2132 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2133 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2134 unlock_user_struct(target_seminfo, target_addr, 1);
2135 return 0;
2136 }
2137
2138 union semun {
2139 int val;
2140 struct semid_ds *buf;
2141 unsigned short *array;
2142 struct seminfo *__buf;
2143 };
2144
2145 union target_semun {
2146 int val;
2147 abi_ulong buf;
2148 abi_ulong array;
2149 abi_ulong __buf;
2150 };
2151
2152 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2153 abi_ulong target_addr)
2154 {
2155 int nsems;
2156 unsigned short *array;
2157 union semun semun;
2158 struct semid_ds semid_ds;
2159 int i, ret;
2160
2161 semun.buf = &semid_ds;
2162
2163 ret = semctl(semid, 0, IPC_STAT, semun);
2164 if (ret == -1)
2165 return get_errno(ret);
2166
2167 nsems = semid_ds.sem_nsems;
2168
2169 *host_array = malloc(nsems*sizeof(unsigned short));
2170 array = lock_user(VERIFY_READ, target_addr,
2171 nsems*sizeof(unsigned short), 1);
2172 if (!array)
2173 return -TARGET_EFAULT;
2174
2175 for(i=0; i<nsems; i++) {
2176 __get_user((*host_array)[i], &array[i]);
2177 }
2178 unlock_user(array, target_addr, 0);
2179
2180 return 0;
2181 }
2182
2183 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2184 unsigned short **host_array)
2185 {
2186 int nsems;
2187 unsigned short *array;
2188 union semun semun;
2189 struct semid_ds semid_ds;
2190 int i, ret;
2191
2192 semun.buf = &semid_ds;
2193
2194 ret = semctl(semid, 0, IPC_STAT, semun);
2195 if (ret == -1)
2196 return get_errno(ret);
2197
2198 nsems = semid_ds.sem_nsems;
2199
2200 array = lock_user(VERIFY_WRITE, target_addr,
2201 nsems*sizeof(unsigned short), 0);
2202 if (!array)
2203 return -TARGET_EFAULT;
2204
2205 for(i=0; i<nsems; i++) {
2206 __put_user((*host_array)[i], &array[i]);
2207 }
2208 free(*host_array);
2209 unlock_user(array, target_addr, 1);
2210
2211 return 0;
2212 }
2213
2214 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2215 union target_semun target_su)
2216 {
2217 union semun arg;
2218 struct semid_ds dsarg;
2219 unsigned short *array;
2220 struct seminfo seminfo;
2221 abi_long ret = -TARGET_EINVAL;
2222 abi_long err;
2223 cmd &= 0xff;
2224
2225 switch( cmd ) {
2226 case GETVAL:
2227 case SETVAL:
2228 arg.val = tswapl(target_su.val);
2229 ret = get_errno(semctl(semid, semnum, cmd, arg));
2230 target_su.val = tswapl(arg.val);
2231 break;
2232 case GETALL:
2233 case SETALL:
2234 err = target_to_host_semarray(semid, &array, target_su.array);
2235 if (err)
2236 return err;
2237 arg.array = array;
2238 ret = get_errno(semctl(semid, semnum, cmd, arg));
2239 err = host_to_target_semarray(semid, target_su.array, &array);
2240 if (err)
2241 return err;
2242 break;
2243 case IPC_STAT:
2244 case IPC_SET:
2245 case SEM_STAT:
2246 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2247 if (err)
2248 return err;
2249 arg.buf = &dsarg;
2250 ret = get_errno(semctl(semid, semnum, cmd, arg));
2251 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2252 if (err)
2253 return err;
2254 break;
2255 case IPC_INFO:
2256 case SEM_INFO:
2257 arg.__buf = &seminfo;
2258 ret = get_errno(semctl(semid, semnum, cmd, arg));
2259 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2260 if (err)
2261 return err;
2262 break;
2263 case IPC_RMID:
2264 case GETPID:
2265 case GETNCNT:
2266 case GETZCNT:
2267 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2268 break;
2269 }
2270
2271 return ret;
2272 }
2273
2274 struct target_sembuf {
2275 unsigned short sem_num;
2276 short sem_op;
2277 short sem_flg;
2278 };
2279
2280 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2281 abi_ulong target_addr,
2282 unsigned nsops)
2283 {
2284 struct target_sembuf *target_sembuf;
2285 int i;
2286
2287 target_sembuf = lock_user(VERIFY_READ, target_addr,
2288 nsops*sizeof(struct target_sembuf), 1);
2289 if (!target_sembuf)
2290 return -TARGET_EFAULT;
2291
2292 for(i=0; i<nsops; i++) {
2293 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2294 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2295 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2296 }
2297
2298 unlock_user(target_sembuf, target_addr, 0);
2299
2300 return 0;
2301 }
2302
2303 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2304 {
2305 struct sembuf sops[nsops];
2306
2307 if (target_to_host_sembuf(sops, ptr, nsops))
2308 return -TARGET_EFAULT;
2309
2310 return semop(semid, sops, nsops);
2311 }
2312
2313 struct target_msqid_ds
2314 {
2315 struct target_ipc_perm msg_perm;
2316 abi_ulong msg_stime;
2317 #if TARGET_ABI_BITS == 32
2318 abi_ulong __unused1;
2319 #endif
2320 abi_ulong msg_rtime;
2321 #if TARGET_ABI_BITS == 32
2322 abi_ulong __unused2;
2323 #endif
2324 abi_ulong msg_ctime;
2325 #if TARGET_ABI_BITS == 32
2326 abi_ulong __unused3;
2327 #endif
2328 abi_ulong __msg_cbytes;
2329 abi_ulong msg_qnum;
2330 abi_ulong msg_qbytes;
2331 abi_ulong msg_lspid;
2332 abi_ulong msg_lrpid;
2333 abi_ulong __unused4;
2334 abi_ulong __unused5;
2335 };
2336
2337 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2338 abi_ulong target_addr)
2339 {
2340 struct target_msqid_ds *target_md;
2341
2342 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2343 return -TARGET_EFAULT;
2344 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2345 return -TARGET_EFAULT;
2346 host_md->msg_stime = tswapl(target_md->msg_stime);
2347 host_md->msg_rtime = tswapl(target_md->msg_rtime);
2348 host_md->msg_ctime = tswapl(target_md->msg_ctime);
2349 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
2350 host_md->msg_qnum = tswapl(target_md->msg_qnum);
2351 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
2352 host_md->msg_lspid = tswapl(target_md->msg_lspid);
2353 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
2354 unlock_user_struct(target_md, target_addr, 0);
2355 return 0;
2356 }
2357
2358 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2359 struct msqid_ds *host_md)
2360 {
2361 struct target_msqid_ds *target_md;
2362
2363 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2364 return -TARGET_EFAULT;
2365 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2366 return -TARGET_EFAULT;
2367 target_md->msg_stime = tswapl(host_md->msg_stime);
2368 target_md->msg_rtime = tswapl(host_md->msg_rtime);
2369 target_md->msg_ctime = tswapl(host_md->msg_ctime);
2370 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
2371 target_md->msg_qnum = tswapl(host_md->msg_qnum);
2372 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
2373 target_md->msg_lspid = tswapl(host_md->msg_lspid);
2374 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
2375 unlock_user_struct(target_md, target_addr, 1);
2376 return 0;
2377 }
2378
2379 struct target_msginfo {
2380 int msgpool;
2381 int msgmap;
2382 int msgmax;
2383 int msgmnb;
2384 int msgmni;
2385 int msgssz;
2386 int msgtql;
2387 unsigned short int msgseg;
2388 };
2389
2390 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2391 struct msginfo *host_msginfo)
2392 {
2393 struct target_msginfo *target_msginfo;
2394 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2395 return -TARGET_EFAULT;
2396 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2397 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2398 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2399 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2400 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2401 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2402 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2403 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2404 unlock_user_struct(target_msginfo, target_addr, 1);
2405 return 0;
2406 }
2407
2408 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2409 {
2410 struct msqid_ds dsarg;
2411 struct msginfo msginfo;
2412 abi_long ret = -TARGET_EINVAL;
2413
2414 cmd &= 0xff;
2415
2416 switch (cmd) {
2417 case IPC_STAT:
2418 case IPC_SET:
2419 case MSG_STAT:
2420 if (target_to_host_msqid_ds(&dsarg,ptr))
2421 return -TARGET_EFAULT;
2422 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2423 if (host_to_target_msqid_ds(ptr,&dsarg))
2424 return -TARGET_EFAULT;
2425 break;
2426 case IPC_RMID:
2427 ret = get_errno(msgctl(msgid, cmd, NULL));
2428 break;
2429 case IPC_INFO:
2430 case MSG_INFO:
2431 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2432 if (host_to_target_msginfo(ptr, &msginfo))
2433 return -TARGET_EFAULT;
2434 break;
2435 }
2436
2437 return ret;
2438 }
2439
2440 struct target_msgbuf {
2441 abi_long mtype;
2442 char mtext[1];
2443 };
2444
2445 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2446 unsigned int msgsz, int msgflg)
2447 {
2448 struct target_msgbuf *target_mb;
2449 struct msgbuf *host_mb;
2450 abi_long ret = 0;
2451
2452 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2453 return -TARGET_EFAULT;
2454 host_mb = malloc(msgsz+sizeof(long));
2455 host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
2456 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2457 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2458 free(host_mb);
2459 unlock_user_struct(target_mb, msgp, 0);
2460
2461 return ret;
2462 }
2463
2464 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2465 unsigned int msgsz, abi_long msgtyp,
2466 int msgflg)
2467 {
2468 struct target_msgbuf *target_mb;
2469 char *target_mtext;
2470 struct msgbuf *host_mb;
2471 abi_long ret = 0;
2472
2473 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2474 return -TARGET_EFAULT;
2475
2476 host_mb = malloc(msgsz+sizeof(long));
2477 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
2478
2479 if (ret > 0) {
2480 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2481 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2482 if (!target_mtext) {
2483 ret = -TARGET_EFAULT;
2484 goto end;
2485 }
2486 memcpy(target_mb->mtext, host_mb->mtext, ret);
2487 unlock_user(target_mtext, target_mtext_addr, ret);
2488 }
2489
2490 target_mb->mtype = tswapl(host_mb->mtype);
2491 free(host_mb);
2492
2493 end:
2494 if (target_mb)
2495 unlock_user_struct(target_mb, msgp, 1);
2496 return ret;
2497 }
2498
2499 struct target_shmid_ds
2500 {
2501 struct target_ipc_perm shm_perm;
2502 abi_ulong shm_segsz;
2503 abi_ulong shm_atime;
2504 #if TARGET_ABI_BITS == 32
2505 abi_ulong __unused1;
2506 #endif
2507 abi_ulong shm_dtime;
2508 #if TARGET_ABI_BITS == 32
2509 abi_ulong __unused2;
2510 #endif
2511 abi_ulong shm_ctime;
2512 #if TARGET_ABI_BITS == 32
2513 abi_ulong __unused3;
2514 #endif
2515 int shm_cpid;
2516 int shm_lpid;
2517 abi_ulong shm_nattch;
2518 unsigned long int __unused4;
2519 unsigned long int __unused5;
2520 };
2521
2522 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2523 abi_ulong target_addr)
2524 {
2525 struct target_shmid_ds *target_sd;
2526
2527 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2528 return -TARGET_EFAULT;
2529 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2530 return -TARGET_EFAULT;
2531 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2532 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2533 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2534 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2535 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2536 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2537 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2538 unlock_user_struct(target_sd, target_addr, 0);
2539 return 0;
2540 }
2541
2542 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2543 struct shmid_ds *host_sd)
2544 {
2545 struct target_shmid_ds *target_sd;
2546
2547 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2548 return -TARGET_EFAULT;
2549 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2550 return -TARGET_EFAULT;
2551 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2552 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2553 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2554 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2555 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2556 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2557 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2558 unlock_user_struct(target_sd, target_addr, 1);
2559 return 0;
2560 }
2561
2562 struct target_shminfo {
2563 abi_ulong shmmax;
2564 abi_ulong shmmin;
2565 abi_ulong shmmni;
2566 abi_ulong shmseg;
2567 abi_ulong shmall;
2568 };
2569
2570 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2571 struct shminfo *host_shminfo)
2572 {
2573 struct target_shminfo *target_shminfo;
2574 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2575 return -TARGET_EFAULT;
2576 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2577 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2578 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2579 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2580 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2581 unlock_user_struct(target_shminfo, target_addr, 1);
2582 return 0;
2583 }
2584
2585 struct target_shm_info {
2586 int used_ids;
2587 abi_ulong shm_tot;
2588 abi_ulong shm_rss;
2589 abi_ulong shm_swp;
2590 abi_ulong swap_attempts;
2591 abi_ulong swap_successes;
2592 };
2593
2594 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2595 struct shm_info *host_shm_info)
2596 {
2597 struct target_shm_info *target_shm_info;
2598 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2599 return -TARGET_EFAULT;
2600 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2601 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2602 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2603 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2604 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2605 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2606 unlock_user_struct(target_shm_info, target_addr, 1);
2607 return 0;
2608 }
2609
2610 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2611 {
2612 struct shmid_ds dsarg;
2613 struct shminfo shminfo;
2614 struct shm_info shm_info;
2615 abi_long ret = -TARGET_EINVAL;
2616
2617 cmd &= 0xff;
2618
2619 switch(cmd) {
2620 case IPC_STAT:
2621 case IPC_SET:
2622 case SHM_STAT:
2623 if (target_to_host_shmid_ds(&dsarg, buf))
2624 return -TARGET_EFAULT;
2625 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2626 if (host_to_target_shmid_ds(buf, &dsarg))
2627 return -TARGET_EFAULT;
2628 break;
2629 case IPC_INFO:
2630 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2631 if (host_to_target_shminfo(buf, &shminfo))
2632 return -TARGET_EFAULT;
2633 break;
2634 case SHM_INFO:
2635 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2636 if (host_to_target_shm_info(buf, &shm_info))
2637 return -TARGET_EFAULT;
2638 break;
2639 case IPC_RMID:
2640 case SHM_LOCK:
2641 case SHM_UNLOCK:
2642 ret = get_errno(shmctl(shmid, cmd, NULL));
2643 break;
2644 }
2645
2646 return ret;
2647 }
2648
2649 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2650 {
2651 abi_long raddr;
2652 void *host_raddr;
2653 struct shmid_ds shm_info;
2654 int i,ret;
2655
2656 /* find out the length of the shared memory segment */
2657 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2658 if (is_error(ret)) {
2659 /* can't get length, bail out */
2660 return ret;
2661 }
2662
2663 mmap_lock();
2664
2665 if (shmaddr)
2666 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2667 else {
2668 abi_ulong mmap_start;
2669
2670 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2671
2672 if (mmap_start == -1) {
2673 errno = ENOMEM;
2674 host_raddr = (void *)-1;
2675 } else
2676 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2677 }
2678
2679 if (host_raddr == (void *)-1) {
2680 mmap_unlock();
2681 return get_errno((long)host_raddr);
2682 }
2683 raddr=h2g((unsigned long)host_raddr);
2684
2685 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2686 PAGE_VALID | PAGE_READ |
2687 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2688
2689 for (i = 0; i < N_SHM_REGIONS; i++) {
2690 if (shm_regions[i].start == 0) {
2691 shm_regions[i].start = raddr;
2692 shm_regions[i].size = shm_info.shm_segsz;
2693 break;
2694 }
2695 }
2696
2697 mmap_unlock();
2698 return raddr;
2699
2700 }
2701
2702 static inline abi_long do_shmdt(abi_ulong shmaddr)
2703 {
2704 int i;
2705
2706 for (i = 0; i < N_SHM_REGIONS; ++i) {
2707 if (shm_regions[i].start == shmaddr) {
2708 shm_regions[i].start = 0;
2709 page_set_flags(shmaddr, shm_regions[i].size, 0);
2710 break;
2711 }
2712 }
2713
2714 return get_errno(shmdt(g2h(shmaddr)));
2715 }
2716
2717 #ifdef TARGET_NR_ipc
2718 /* ??? This only works with linear mappings. */
2719 /* do_ipc() must return target values and target errnos. */
2720 static abi_long do_ipc(unsigned int call, int first,
2721 int second, int third,
2722 abi_long ptr, abi_long fifth)
2723 {
2724 int version;
2725 abi_long ret = 0;
2726
2727 version = call >> 16;
2728 call &= 0xffff;
2729
2730 switch (call) {
2731 case IPCOP_semop:
2732 ret = do_semop(first, ptr, second);
2733 break;
2734
2735 case IPCOP_semget:
2736 ret = get_errno(semget(first, second, third));
2737 break;
2738
2739 case IPCOP_semctl:
2740 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
2741 break;
2742
2743 case IPCOP_msgget:
2744 ret = get_errno(msgget(first, second));
2745 break;
2746
2747 case IPCOP_msgsnd:
2748 ret = do_msgsnd(first, ptr, second, third);
2749 break;
2750
2751 case IPCOP_msgctl:
2752 ret = do_msgctl(first, second, ptr);
2753 break;
2754
2755 case IPCOP_msgrcv:
2756 switch (version) {
2757 case 0:
2758 {
2759 struct target_ipc_kludge {
2760 abi_long msgp;
2761 abi_long msgtyp;
2762 } *tmp;
2763
2764 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
2765 ret = -TARGET_EFAULT;
2766 break;
2767 }
2768
2769 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
2770
2771 unlock_user_struct(tmp, ptr, 0);
2772 break;
2773 }
2774 default:
2775 ret = do_msgrcv(first, ptr, second, fifth, third);
2776 }
2777 break;
2778
2779 case IPCOP_shmat:
2780 switch (version) {
2781 default:
2782 {
2783 abi_ulong raddr;
2784 raddr = do_shmat(first, ptr, second);
2785 if (is_error(raddr))
2786 return get_errno(raddr);
2787 if (put_user_ual(raddr, third))
2788 return -TARGET_EFAULT;
2789 break;
2790 }
2791 case 1:
2792 ret = -TARGET_EINVAL;
2793 break;
2794 }
2795 break;
2796 case IPCOP_shmdt:
2797 ret = do_shmdt(ptr);
2798 break;
2799
2800 case IPCOP_shmget:
2801 /* IPC_* flag values are the same on all linux platforms */
2802 ret = get_errno(shmget(first, second, third));
2803 break;
2804
2805 /* IPC_* and SHM_* command values are the same on all linux platforms */
2806 case IPCOP_shmctl:
2807 ret = do_shmctl(first, second, third);
2808 break;
2809 default:
2810 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2811 ret = -TARGET_ENOSYS;
2812 break;
2813 }
2814 return ret;
2815 }
2816 #endif
2817
2818 /* kernel structure types definitions */
2819 #define IFNAMSIZ 16
2820
2821 #define STRUCT(name, ...) STRUCT_ ## name,
2822 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2823 enum {
2824 #include "syscall_types.h"
2825 };
2826 #undef STRUCT
2827 #undef STRUCT_SPECIAL
2828
2829 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
2830 #define STRUCT_SPECIAL(name)
2831 #include "syscall_types.h"
2832 #undef STRUCT
2833 #undef STRUCT_SPECIAL
2834
2835 typedef struct IOCTLEntry {
2836 unsigned int target_cmd;
2837 unsigned int host_cmd;
2838 const char *name;
2839 int access;
2840 const argtype arg_type[5];
2841 } IOCTLEntry;
2842
2843 #define IOC_R 0x0001
2844 #define IOC_W 0x0002
2845 #define IOC_RW (IOC_R | IOC_W)
2846
2847 #define MAX_STRUCT_SIZE 4096
2848
2849 static IOCTLEntry ioctl_entries[] = {
2850 #define IOCTL(cmd, access, ...) \
2851 { TARGET_ ## cmd, cmd, #cmd, access, { __VA_ARGS__ } },
2852 #include "ioctls.h"
2853 { 0, 0, },
2854 };
2855
2856 /* ??? Implement proper locking for ioctls. */
2857 /* do_ioctl() Must return target values and target errnos. */
2858 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
2859 {
2860 const IOCTLEntry *ie;
2861 const argtype *arg_type;
2862 abi_long ret;
2863 uint8_t buf_temp[MAX_STRUCT_SIZE];
2864 int target_size;
2865 void *argptr;
2866
2867 ie = ioctl_entries;
2868 for(;;) {
2869 if (ie->target_cmd == 0) {
2870 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
2871 return -TARGET_ENOSYS;
2872 }
2873 if (ie->target_cmd == cmd)
2874 break;
2875 ie++;
2876 }
2877 arg_type = ie->arg_type;
2878 #if defined(DEBUG)
2879 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
2880 #endif
2881 switch(arg_type[0]) {
2882 case TYPE_NULL:
2883 /* no argument */
2884 ret = get_errno(ioctl(fd, ie->host_cmd));
2885 break;
2886 case TYPE_PTRVOID:
2887 case TYPE_INT:
2888 /* int argment */
2889 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
2890 break;
2891 case TYPE_PTR:
2892 arg_type++;
2893 target_size = thunk_type_size(arg_type, 0);
2894 switch(ie->access) {
2895 case IOC_R:
2896 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2897 if (!is_error(ret)) {
2898 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2899 if (!argptr)
2900 return -TARGET_EFAULT;
2901 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2902 unlock_user(argptr, arg, target_size);
2903 }
2904 break;
2905 case IOC_W:
2906 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2907 if (!argptr)
2908 return -TARGET_EFAULT;
2909 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2910 unlock_user(argptr, arg, 0);
2911 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2912 break;
2913 default:
2914 case IOC_RW:
2915 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2916 if (!argptr)
2917 return -TARGET_EFAULT;
2918 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2919 unlock_user(argptr, arg, 0);
2920 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2921 if (!is_error(ret)) {
2922 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2923 if (!argptr)
2924 return -TARGET_EFAULT;
2925 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2926 unlock_user(argptr, arg, target_size);
2927 }
2928 break;
2929 }
2930 break;
2931 default:
2932 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
2933 (long)cmd, arg_type[0]);
2934 ret = -TARGET_ENOSYS;
2935 break;
2936 }
2937 return ret;
2938 }
2939
2940 static const bitmask_transtbl iflag_tbl[] = {
2941 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
2942 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
2943 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
2944 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
2945 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
2946 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
2947 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
2948 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
2949 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
2950 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
2951 { TARGET_IXON, TARGET_IXON, IXON, IXON },
2952 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
2953 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
2954 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
2955 { 0, 0, 0, 0 }
2956 };
2957
2958 static const bitmask_transtbl oflag_tbl[] = {
2959 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
2960 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
2961 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
2962 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
2963 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
2964 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
2965 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
2966 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
2967 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
2968 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
2969 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
2970 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
2971 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
2972 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
2973 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
2974 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
2975 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
2976 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
2977 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
2978 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
2979 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
2980 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
2981 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
2982 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
2983 { 0, 0, 0, 0 }
2984 };
2985
2986 static const bitmask_transtbl cflag_tbl[] = {
2987 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
2988 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
2989 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
2990 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
2991 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
2992 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
2993 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
2994 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
2995 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
2996 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
2997 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
2998 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
2999 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3000 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3001 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3002 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3003 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3004 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3005 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3006 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3007 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3008 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3009 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3010 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3011 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3012 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3013 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3014 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3015 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3016 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3017 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3018 { 0, 0, 0, 0 }
3019 };
3020
3021 static const bitmask_transtbl lflag_tbl[] = {
3022 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3023 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3024 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3025 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3026 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3027 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3028 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3029 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3030 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3031 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3032 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3033 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3034 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3035 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3036 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3037 { 0, 0, 0, 0 }
3038 };
3039
3040 static void target_to_host_termios (void *dst, const void *src)
3041 {
3042 struct host_termios *host = dst;
3043 const struct target_termios *target = src;
3044
3045 host->c_iflag =
3046 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3047 host->c_oflag =
3048 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3049 host->c_cflag =
3050 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3051 host->c_lflag =
3052 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3053 host->c_line = target->c_line;
3054
3055 memset(host->c_cc, 0, sizeof(host->c_cc));
3056 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3057 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3058 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3059 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3060 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3061 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3062 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3063 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3064 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3065 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3066 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3067 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3068 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3069 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3070 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3071 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3072 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3073 }
3074
3075 static void host_to_target_termios (void *dst, const void *src)
3076 {
3077 struct target_termios *target = dst;
3078 const struct host_termios *host = src;
3079
3080 target->c_iflag =
3081 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3082 target->c_oflag =
3083 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3084 target->c_cflag =
3085 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3086 target->c_lflag =
3087 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3088 target->c_line = host->c_line;
3089
3090 memset(target->c_cc, 0, sizeof(target->c_cc));
3091 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3092 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3093 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3094 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3095 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3096 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3097 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3098 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3099 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3100 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3101 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3102 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3103 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3104 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3105 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3106 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3107 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3108 }
3109
3110 static const StructEntry struct_termios_def = {
3111 .convert = { host_to_target_termios, target_to_host_termios },
3112 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3113 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3114 };
3115
3116 static bitmask_transtbl mmap_flags_tbl[] = {
3117 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3118 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3119 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3120 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3121 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3122 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3123 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3124 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3125 { 0, 0, 0, 0 }
3126 };
3127
3128 #if defined(TARGET_I386)
3129
3130 /* NOTE: there is really one LDT for all the threads */
3131 static uint8_t *ldt_table;
3132
3133 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3134 {
3135 int size;
3136 void *p;
3137
3138 if (!ldt_table)
3139 return 0;
3140 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3141 if (size > bytecount)
3142 size = bytecount;
3143 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3144 if (!p)
3145 return -TARGET_EFAULT;
3146 /* ??? Should this by byteswapped? */
3147 memcpy(p, ldt_table, size);
3148 unlock_user(p, ptr, size);
3149 return size;
3150 }
3151
3152 /* XXX: add locking support */
3153 static abi_long write_ldt(CPUX86State *env,
3154 abi_ulong ptr, unsigned long bytecount, int oldmode)
3155 {
3156 struct target_modify_ldt_ldt_s ldt_info;
3157 struct target_modify_ldt_ldt_s *target_ldt_info;
3158 int seg_32bit, contents, read_exec_only, limit_in_pages;
3159 int seg_not_present, useable, lm;
3160 uint32_t *lp, entry_1, entry_2;
3161
3162 if (bytecount != sizeof(ldt_info))
3163 return -TARGET_EINVAL;
3164 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3165 return -TARGET_EFAULT;
3166 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3167 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3168 ldt_info.limit = tswap32(target_ldt_info->limit);
3169 ldt_info.flags = tswap32(target_ldt_info->flags);
3170 unlock_user_struct(target_ldt_info, ptr, 0);
3171
3172 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3173 return -TARGET_EINVAL;
3174 seg_32bit = ldt_info.flags & 1;
3175 contents = (ldt_info.flags >> 1) & 3;
3176 read_exec_only = (ldt_info.flags >> 3) & 1;
3177 limit_in_pages = (ldt_info.flags >> 4) & 1;
3178 seg_not_present = (ldt_info.flags >> 5) & 1;
3179 useable = (ldt_info.flags >> 6) & 1;
3180 #ifdef TARGET_ABI32
3181 lm = 0;
3182 #else
3183 lm = (ldt_info.flags >> 7) & 1;
3184 #endif
3185 if (contents == 3) {
3186 if (oldmode)
3187 return -TARGET_EINVAL;
3188 if (seg_not_present == 0)
3189 return -TARGET_EINVAL;
3190 }
3191 /* allocate the LDT */
3192 if (!ldt_table) {
3193 env->ldt.base = target_mmap(0,
3194 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3195 PROT_READ|PROT_WRITE,
3196 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3197 if (env->ldt.base == -1)
3198 return -TARGET_ENOMEM;
3199 memset(g2h(env->ldt.base), 0,
3200 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3201 env->ldt.limit = 0xffff;
3202 ldt_table = g2h(env->ldt.base);
3203 }
3204
3205 /* NOTE: same code as Linux kernel */
3206 /* Allow LDTs to be cleared by the user. */
3207 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3208 if (oldmode ||
3209 (contents == 0 &&
3210 read_exec_only == 1 &&
3211 seg_32bit == 0 &&
3212 limit_in_pages == 0 &&
3213 seg_not_present == 1 &&
3214 useable == 0 )) {
3215 entry_1 = 0;
3216 entry_2 = 0;
3217 goto install;
3218 }
3219 }
3220
3221 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3222 (ldt_info.limit & 0x0ffff);
3223 entry_2 = (ldt_info.base_addr & 0xff000000) |
3224 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3225 (ldt_info.limit & 0xf0000) |
3226 ((read_exec_only ^ 1) << 9) |
3227 (contents << 10) |
3228 ((seg_not_present ^ 1) << 15) |
3229 (seg_32bit << 22) |
3230 (limit_in_pages << 23) |
3231 (lm << 21) |
3232 0x7000;
3233 if (!oldmode)
3234 entry_2 |= (useable << 20);
3235
3236 /* Install the new entry ... */
3237 install:
3238 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3239 lp[0] = tswap32(entry_1);
3240 lp[1] = tswap32(entry_2);
3241 return 0;
3242 }
3243
3244 /* specific and weird i386 syscalls */
3245 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3246 unsigned long bytecount)
3247 {
3248 abi_long ret;
3249
3250 switch (func) {
3251 case 0:
3252 ret = read_ldt(ptr, bytecount);
3253 break;
3254 case 1:
3255 ret = write_ldt(env, ptr, bytecount, 1);
3256 break;
3257 case 0x11:
3258 ret = write_ldt(env, ptr, bytecount, 0);
3259 break;
3260 default:
3261 ret = -TARGET_ENOSYS;
3262 break;
3263 }
3264 return ret;
3265 }
3266
3267 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3268 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3269 {
3270 uint64_t *gdt_table = g2h(env->gdt.base);
3271 struct target_modify_ldt_ldt_s ldt_info;
3272 struct target_modify_ldt_ldt_s *target_ldt_info;
3273 int seg_32bit, contents, read_exec_only, limit_in_pages;
3274 int seg_not_present, useable, lm;
3275 uint32_t *lp, entry_1, entry_2;
3276 int i;
3277
3278 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3279 if (!target_ldt_info)
3280 return -TARGET_EFAULT;
3281 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3282 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3283 ldt_info.limit = tswap32(target_ldt_info->limit);
3284 ldt_info.flags = tswap32(target_ldt_info->flags);
3285 if (ldt_info.entry_number == -1) {
3286 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3287 if (gdt_table[i] == 0) {
3288 ldt_info.entry_number = i;
3289 target_ldt_info->entry_number = tswap32(i);
3290 break;
3291 }
3292 }
3293 }
3294 unlock_user_struct(target_ldt_info, ptr, 1);
3295
3296 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3297 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3298 return -TARGET_EINVAL;
3299 seg_32bit = ldt_info.flags & 1;
3300 contents = (ldt_info.flags >> 1) & 3;
3301 read_exec_only = (ldt_info.flags >> 3) & 1;
3302 limit_in_pages = (ldt_info.flags >> 4) & 1;
3303 seg_not_present = (ldt_info.flags >> 5) & 1;
3304 useable = (ldt_info.flags >> 6) & 1;
3305 #ifdef TARGET_ABI32
3306 lm = 0;
3307 #else
3308 lm = (ldt_info.flags >> 7) & 1;
3309 #endif
3310
3311 if (contents == 3) {
3312 if (seg_not_present == 0)
3313 return -TARGET_EINVAL;
3314 }
3315
3316 /* NOTE: same code as Linux kernel */
3317 /* Allow LDTs to be cleared by the user. */
3318 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3319 if ((contents == 0 &&
3320 read_exec_only == 1 &&
3321 seg_32bit == 0 &&
3322 limit_in_pages == 0 &&
3323 seg_not_present == 1 &&
3324 useable == 0 )) {
3325 entry_1 = 0;
3326 entry_2 = 0;
3327 goto install;
3328 }
3329 }
3330
3331 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3332 (ldt_info.limit & 0x0ffff);
3333 entry_2 = (ldt_info.base_addr & 0xff000000) |
3334 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3335 (ldt_info.limit & 0xf0000) |
3336 ((read_exec_only ^ 1) << 9) |
3337 (contents << 10) |
3338 ((seg_not_present ^ 1) << 15) |
3339 (seg_32bit << 22) |
3340 (limit_in_pages << 23) |
3341 (useable << 20) |
3342 (lm << 21) |
3343 0x7000;
3344
3345 /* Install the new entry ... */
3346 install:
3347 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3348 lp[0] = tswap32(entry_1);
3349 lp[1] = tswap32(entry_2);
3350 return 0;
3351 }
3352
3353 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3354 {
3355 struct target_modify_ldt_ldt_s *target_ldt_info;
3356 uint64_t *gdt_table = g2h(env->gdt.base);
3357 uint32_t base_addr, limit, flags;
3358 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3359 int seg_not_present, useable, lm;
3360 uint32_t *lp, entry_1, entry_2;
3361
3362 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3363 if (!target_ldt_info)
3364 return -TARGET_EFAULT;
3365 idx = tswap32(target_ldt_info->entry_number);
3366 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3367 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3368 unlock_user_struct(target_ldt_info, ptr, 1);
3369 return -TARGET_EINVAL;
3370 }
3371 lp = (uint32_t *)(gdt_table + idx);
3372 entry_1 = tswap32(lp[0]);
3373 entry_2 = tswap32(lp[1]);
3374
3375 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3376 contents = (entry_2 >> 10) & 3;
3377 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3378 seg_32bit = (entry_2 >> 22) & 1;
3379 limit_in_pages = (entry_2 >> 23) & 1;
3380 useable = (entry_2 >> 20) & 1;
3381 #ifdef TARGET_ABI32
3382 lm = 0;
3383 #else
3384 lm = (entry_2 >> 21) & 1;
3385 #endif
3386 flags = (seg_32bit << 0) | (contents << 1) |
3387 (read_exec_only << 3) | (limit_in_pages << 4) |
3388 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3389 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3390 base_addr = (entry_1 >> 16) |
3391 (entry_2 & 0xff000000) |
3392 ((entry_2 & 0xff) << 16);
3393 target_ldt_info->base_addr = tswapl(base_addr);
3394 target_ldt_info->limit = tswap32(limit);
3395 target_ldt_info->flags = tswap32(flags);
3396 unlock_user_struct(target_ldt_info, ptr, 1);
3397 return 0;
3398 }
3399 #endif /* TARGET_I386 && TARGET_ABI32 */
3400
3401 #ifndef TARGET_ABI32
3402 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3403 {
3404 abi_long ret;
3405 abi_ulong val;
3406 int idx;
3407
3408 switch(code) {
3409 case TARGET_ARCH_SET_GS:
3410 case TARGET_ARCH_SET_FS:
3411 if (code == TARGET_ARCH_SET_GS)
3412 idx = R_GS;
3413 else
3414 idx = R_FS;
3415 cpu_x86_load_seg(env, idx, 0);
3416 env->segs[idx].base = addr;
3417 break;
3418 case TARGET_ARCH_GET_GS:
3419 case TARGET_ARCH_GET_FS:
3420 if (code == TARGET_ARCH_GET_GS)
3421 idx = R_GS;
3422 else
3423 idx = R_FS;
3424 val = env->segs[idx].base;
3425 if (put_user(val, addr, abi_ulong))
3426 return -TARGET_EFAULT;
3427 break;
3428 default:
3429 ret = -TARGET_EINVAL;
3430 break;
3431 }
3432 return 0;
3433 }
3434 #endif
3435
3436 #endif /* defined(TARGET_I386) */
3437
3438 #if defined(USE_NPTL)
3439
3440 #define NEW_STACK_SIZE PTHREAD_STACK_MIN
3441
3442 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3443 typedef struct {
3444 CPUState *env;
3445 pthread_mutex_t mutex;
3446 pthread_cond_t cond;
3447 pthread_t thread;
3448 uint32_t tid;
3449 abi_ulong child_tidptr;
3450 abi_ulong parent_tidptr;
3451 sigset_t sigmask;
3452 } new_thread_info;
3453
3454 static void *clone_func(void *arg)
3455 {
3456 new_thread_info *info = arg;
3457 CPUState *env;
3458 TaskState *ts;
3459
3460 env = info->env;
3461 thread_env = env;
3462 ts = (TaskState *)thread_env->opaque;
3463 info->tid = gettid();
3464 env->host_tid = info->tid;
3465 task_settid(ts);
3466 if (info->child_tidptr)
3467 put_user_u32(info->tid, info->child_tidptr);
3468 if (info->parent_tidptr)
3469 put_user_u32(info->tid, info->parent_tidptr);
3470 /* Enable signals. */
3471 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3472 /* Signal to the parent that we're ready. */
3473 pthread_mutex_lock(&info->mutex);
3474 pthread_cond_broadcast(&info->cond);
3475 pthread_mutex_unlock(&info->mutex);
3476 /* Wait until the parent has finshed initializing the tls state. */
3477 pthread_mutex_lock(&clone_lock);
3478 pthread_mutex_unlock(&clone_lock);
3479 cpu_loop(env);
3480 /* never exits */
3481 return NULL;
3482 }
3483 #else
3484 /* this stack is the equivalent of the kernel stack associated with a
3485 thread/process */
3486 #define NEW_STACK_SIZE 8192
3487
3488 static int clone_func(void *arg)
3489 {
3490 CPUState *env = arg;
3491 cpu_loop(env);
3492 /* never exits */
3493 return 0;
3494 }
3495 #endif
3496
3497 /* do_fork() Must return host values and target errnos (unlike most
3498 do_*() functions). */
3499 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3500 abi_ulong parent_tidptr, target_ulong newtls,
3501 abi_ulong child_tidptr)
3502 {
3503 int ret;
3504 TaskState *ts;
3505 uint8_t *new_stack;
3506 CPUState *new_env;
3507 #if defined(USE_NPTL)
3508 unsigned int nptl_flags;
3509 sigset_t sigmask;
3510 #endif
3511
3512 /* Emulate vfork() with fork() */
3513 if (flags & CLONE_VFORK)
3514 flags &= ~(CLONE_VFORK | CLONE_VM);
3515
3516 if (flags & CLONE_VM) {
3517 TaskState *parent_ts = (TaskState *)env->opaque;
3518 #if defined(USE_NPTL)
3519 new_thread_info info;
3520 pthread_attr_t attr;
3521 #endif
3522 ts = qemu_mallocz(sizeof(TaskState) + NEW_STACK_SIZE);
3523 init_task_state(ts);
3524 new_stack = ts->stack;
3525 /* we create a new CPU instance. */
3526 new_env = cpu_copy(env);
3527 /* Init regs that differ from the parent. */
3528 cpu_clone_regs(new_env, newsp);
3529 new_env->opaque = ts;
3530 ts->bprm = parent_ts->bprm;
3531 ts->info = parent_ts->info;
3532 #if defined(USE_NPTL)
3533 nptl_flags = flags;
3534 flags &= ~CLONE_NPTL_FLAGS2;
3535
3536 if (nptl_flags & CLONE_CHILD_CLEARTID) {
3537 ts->child_tidptr = child_tidptr;
3538 }
3539
3540 if (nptl_flags & CLONE_SETTLS)
3541 cpu_set_tls (new_env, newtls);
3542
3543 /* Grab a mutex so that thread setup appears atomic. */
3544 pthread_mutex_lock(&clone_lock);
3545
3546 memset(&info, 0, sizeof(info));
3547 pthread_mutex_init(&info.mutex, NULL);
3548 pthread_mutex_lock(&info.mutex);
3549 pthread_cond_init(&info.cond, NULL);
3550 info.env = new_env;
3551 if (nptl_flags & CLONE_CHILD_SETTID)
3552 info.child_tidptr = child_tidptr;
3553 if (nptl_flags & CLONE_PARENT_SETTID)
3554 info.parent_tidptr = parent_tidptr;
3555
3556 ret = pthread_attr_init(&attr);
3557 ret = pthread_attr_setstack(&attr, new_stack, NEW_STACK_SIZE);
3558 /* It is not safe to deliver signals until the child has finished
3559 initializing, so temporarily block all signals. */
3560 sigfillset(&sigmask);
3561 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
3562
3563 ret = pthread_create(&info.thread, &attr, clone_func, &info);
3564 /* TODO: Free new CPU state if thread creation failed. */
3565
3566 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
3567 pthread_attr_destroy(&attr);
3568 if (ret == 0) {
3569 /* Wait for the child to initialize. */
3570 pthread_cond_wait(&info.cond, &info.mutex);
3571 ret = info.tid;
3572 if (flags & CLONE_PARENT_SETTID)
3573 put_user_u32(ret, parent_tidptr);
3574 } else {
3575 ret = -1;
3576 }
3577 pthread_mutex_unlock(&info.mutex);
3578 pthread_cond_destroy(&info.cond);
3579 pthread_mutex_destroy(&info.mutex);
3580 pthread_mutex_unlock(&clone_lock);
3581 #else
3582 if (flags & CLONE_NPTL_FLAGS2)
3583 return -EINVAL;
3584 /* This is probably going to die very quickly, but do it anyway. */
3585 #ifdef __ia64__
3586 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3587 #else
3588 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3589 #endif
3590 #endif
3591 } else {
3592 /* if no CLONE_VM, we consider it is a fork */
3593 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
3594 return -EINVAL;
3595 fork_start();
3596 ret = fork();
3597 if (ret == 0) {
3598 /* Child Process. */
3599 cpu_clone_regs(env, newsp);
3600 fork_end(1);
3601 #if defined(USE_NPTL)
3602 /* There is a race condition here. The parent process could
3603 theoretically read the TID in the child process before the child
3604 tid is set. This would require using either ptrace
3605 (not implemented) or having *_tidptr to point at a shared memory
3606 mapping. We can't repeat the spinlock hack used above because
3607 the child process gets its own copy of the lock. */
3608 if (flags & CLONE_CHILD_SETTID)
3609 put_user_u32(gettid(), child_tidptr);
3610 if (flags & CLONE_PARENT_SETTID)
3611 put_user_u32(gettid(), parent_tidptr);
3612 ts = (TaskState *)env->opaque;
3613 if (flags & CLONE_SETTLS)
3614 cpu_set_tls (env, newtls);
3615 if (flags & CLONE_CHILD_CLEARTID)
3616 ts->child_tidptr = child_tidptr;
3617 #endif
3618 } else {
3619 fork_end(0);
3620 }
3621 }
3622 return ret;
3623 }
3624
3625 /* warning : doesn't handle linux specific flags... */
3626 static int target_to_host_fcntl_cmd(int cmd)
3627 {
3628 switch(cmd) {
3629 case TARGET_F_DUPFD:
3630 case TARGET_F_GETFD:
3631 case TARGET_F_SETFD:
3632 case TARGET_F_GETFL:
3633 case TARGET_F_SETFL:
3634 return cmd;
3635 case TARGET_F_GETLK:
3636 return F_GETLK;
3637 case TARGET_F_SETLK:
3638 return F_SETLK;
3639 case TARGET_F_SETLKW:
3640 return F_SETLKW;
3641 case TARGET_F_GETOWN:
3642 return F_GETOWN;
3643 case TARGET_F_SETOWN:
3644 return F_SETOWN;
3645 case TARGET_F_GETSIG:
3646 return F_GETSIG;
3647 case TARGET_F_SETSIG:
3648 return F_SETSIG;
3649 #if TARGET_ABI_BITS == 32
3650 case TARGET_F_GETLK64:
3651 return F_GETLK64;
3652 case TARGET_F_SETLK64:
3653 return F_SETLK64;
3654 case TARGET_F_SETLKW64:
3655 return F_SETLKW64;
3656 #endif
3657 default:
3658 return -TARGET_EINVAL;
3659 }
3660 return -TARGET_EINVAL;
3661 }
3662
3663 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
3664 {
3665 struct flock fl;
3666 struct target_flock *target_fl;
3667 struct flock64 fl64;
3668 struct target_flock64 *target_fl64;
3669 abi_long ret;
3670 int host_cmd = target_to_host_fcntl_cmd(cmd);
3671
3672 if (host_cmd == -TARGET_EINVAL)
3673 return host_cmd;
3674
3675 switch(cmd) {
3676 case TARGET_F_GETLK:
3677 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3678 return -TARGET_EFAULT;
3679 fl.l_type = tswap16(target_fl->l_type);
3680 fl.l_whence = tswap16(target_fl->l_whence);
3681 fl.l_start = tswapl(target_fl->l_start);
3682 fl.l_len = tswapl(target_fl->l_len);
3683 fl.l_pid = tswapl(target_fl->l_pid);
3684 unlock_user_struct(target_fl, arg, 0);
3685 ret = get_errno(fcntl(fd, host_cmd, &fl));
3686 if (ret == 0) {
3687 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
3688 return -TARGET_EFAULT;
3689 target_fl->l_type = tswap16(fl.l_type);
3690 target_fl->l_whence = tswap16(fl.l_whence);
3691 target_fl->l_start = tswapl(fl.l_start);
3692 target_fl->l_len = tswapl(fl.l_len);
3693 target_fl->l_pid = tswapl(fl.l_pid);
3694 unlock_user_struct(target_fl, arg, 1);
3695 }
3696 break;
3697
3698 case TARGET_F_SETLK:
3699 case TARGET_F_SETLKW:
3700 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3701 return -TARGET_EFAULT;
3702 fl.l_type = tswap16(target_fl->l_type);
3703 fl.l_whence = tswap16(target_fl->l_whence);
3704 fl.l_start = tswapl(target_fl->l_start);
3705 fl.l_len = tswapl(target_fl->l_len);
3706 fl.l_pid = tswapl(target_fl->l_pid);
3707 unlock_user_struct(target_fl, arg, 0);
3708 ret = get_errno(fcntl(fd, host_cmd, &fl));
3709 break;
3710
3711 case TARGET_F_GETLK64:
3712 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3713 return -TARGET_EFAULT;
3714 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3715 fl64.l_whence = tswap16(target_fl64->l_whence);
3716 fl64.l_start = tswapl(target_fl64->l_start);
3717 fl64.l_len = tswapl(target_fl64->l_len);
3718 fl64.l_pid = tswap16(target_fl64->l_pid);
3719 unlock_user_struct(target_fl64, arg, 0);
3720 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3721 if (ret == 0) {
3722 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
3723 return -TARGET_EFAULT;
3724 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
3725 target_fl64->l_whence = tswap16(fl64.l_whence);
3726 target_fl64->l_start = tswapl(fl64.l_start);
3727 target_fl64->l_len = tswapl(fl64.l_len);
3728 target_fl64->l_pid = tswapl(fl64.l_pid);
3729 unlock_user_struct(target_fl64, arg, 1);
3730 }
3731 break;
3732 case TARGET_F_SETLK64:
3733 case TARGET_F_SETLKW64:
3734 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3735 return -TARGET_EFAULT;
3736 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3737 fl64.l_whence = tswap16(target_fl64->l_whence);
3738 fl64.l_start = tswapl(target_fl64->l_start);
3739 fl64.l_len = tswapl(target_fl64->l_len);
3740 fl64.l_pid = tswap16(target_fl64->l_pid);
3741 unlock_user_struct(target_fl64, arg, 0);
3742 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3743 break;
3744
3745 case TARGET_F_GETFL:
3746 ret = get_errno(fcntl(fd, host_cmd, arg));
3747 if (ret >= 0) {
3748 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
3749 }
3750 break;
3751
3752 case TARGET_F_SETFL:
3753 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
3754 break;
3755
3756 case TARGET_F_SETOWN:
3757 case TARGET_F_GETOWN:
3758 case TARGET_F_SETSIG:
3759 case TARGET_F_GETSIG:
3760 ret = get_errno(fcntl(fd, host_cmd, arg));
3761 break;
3762
3763 default:
3764 ret = get_errno(fcntl(fd, cmd, arg));
3765 break;
3766 }
3767 return ret;
3768 }
3769
3770 #ifdef USE_UID16
3771
3772 static inline int high2lowuid(int uid)
3773 {
3774 if (uid > 65535)
3775 return 65534;
3776 else
3777 return uid;
3778 }
3779
3780 static inline int high2lowgid(int gid)
3781 {
3782 if (gid > 65535)
3783 return 65534;
3784 else
3785 return gid;
3786 }
3787
3788 static inline int low2highuid(int uid)
3789 {
3790 if ((int16_t)uid == -1)
3791 return -1;
3792 else
3793 return uid;
3794 }
3795
3796 static inline int low2highgid(int gid)
3797 {
3798 if ((int16_t)gid == -1)
3799 return -1;
3800 else
3801 return gid;
3802 }
3803
3804 #endif /* USE_UID16 */
3805
3806 void syscall_init(void)
3807 {
3808 IOCTLEntry *ie;
3809 const argtype *arg_type;
3810 int size;
3811 int i;
3812
3813 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
3814 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
3815 #include "syscall_types.h"
3816 #undef STRUCT
3817 #undef STRUCT_SPECIAL
3818
3819 /* we patch the ioctl size if necessary. We rely on the fact that
3820 no ioctl has all the bits at '1' in the size field */
3821 ie = ioctl_entries;
3822 while (ie->target_cmd != 0) {
3823 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
3824 TARGET_IOC_SIZEMASK) {
3825 arg_type = ie->arg_type;
3826 if (arg_type[0] != TYPE_PTR) {
3827 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
3828 ie->target_cmd);
3829 exit(1);
3830 }
3831 arg_type++;
3832 size = thunk_type_size(arg_type, 0);
3833 ie->target_cmd = (ie->target_cmd &
3834 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
3835 (size << TARGET_IOC_SIZESHIFT);
3836 }
3837
3838 /* Build target_to_host_errno_table[] table from
3839 * host_to_target_errno_table[]. */
3840 for (i=0; i < ERRNO_TABLE_SIZE; i++)
3841 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
3842
3843 /* automatic consistency check if same arch */
3844 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
3845 (defined(__x86_64__) && defined(TARGET_X86_64))
3846 if (unlikely(ie->target_cmd != ie->host_cmd)) {
3847 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
3848 ie->name, ie->target_cmd, ie->host_cmd);
3849 }
3850 #endif
3851 ie++;
3852 }
3853 }
3854
3855 #if TARGET_ABI_BITS == 32
3856 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
3857 {
3858 #ifdef TARGET_WORDS_BIGENDIAN
3859 return ((uint64_t)word0 << 32) | word1;
3860 #else
3861 return ((uint64_t)word1 << 32) | word0;
3862 #endif
3863 }
3864 #else /* TARGET_ABI_BITS == 32 */
3865 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
3866 {
3867 return word0;
3868 }
3869 #endif /* TARGET_ABI_BITS != 32 */
3870
3871 #ifdef TARGET_NR_truncate64
3872 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
3873 abi_long arg2,
3874 abi_long arg3,
3875 abi_long arg4)
3876 {
3877 #ifdef TARGET_ARM
3878 if (((CPUARMState *)cpu_env)->eabi)
3879 {
3880 arg2 = arg3;
3881 arg3 = arg4;
3882 }
3883 #endif
3884 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
3885 }
3886 #endif
3887
3888 #ifdef TARGET_NR_ftruncate64
3889 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
3890 abi_long arg2,
3891 abi_long arg3,
3892 abi_long arg4)
3893 {
3894 #ifdef TARGET_ARM
3895 if (((CPUARMState *)cpu_env)->eabi)
3896 {
3897 arg2 = arg3;
3898 arg3 = arg4;
3899 }
3900 #endif
3901 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
3902 }
3903 #endif
3904
3905 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
3906 abi_ulong target_addr)
3907 {
3908 struct target_timespec *target_ts;
3909
3910 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
3911 return -TARGET_EFAULT;
3912 host_ts->tv_sec = tswapl(target_ts->tv_sec);
3913 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
3914 unlock_user_struct(target_ts, target_addr, 0);
3915 return 0;
3916 }
3917
3918 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
3919 struct timespec *host_ts)
3920 {
3921 struct target_timespec *target_ts;
3922
3923 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
3924 return -TARGET_EFAULT;
3925 target_ts->tv_sec = tswapl(host_ts->tv_sec);
3926 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
3927 unlock_user_struct(target_ts, target_addr, 1);
3928 return 0;
3929 }
3930
3931 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
3932 static inline abi_long host_to_target_stat64(void *cpu_env,
3933 abi_ulong target_addr,
3934 struct stat *host_st)
3935 {
3936 #ifdef TARGET_ARM
3937 if (((CPUARMState *)cpu_env)->eabi) {
3938 struct target_eabi_stat64 *target_st;
3939
3940 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
3941 return -TARGET_EFAULT;
3942 memset(target_st, 0, sizeof(struct target_eabi_stat64));
3943 __put_user(host_st->st_dev, &target_st->st_dev);
3944 __put_user(host_st->st_ino, &target_st->st_ino);
3945 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3946 __put_user(host_st->st_ino, &target_st->__st_ino);
3947 #endif
3948 __put_user(host_st->st_mode, &target_st->st_mode);
3949 __put_user(host_st->st_nlink, &target_st->st_nlink);
3950 __put_user(host_st->st_uid, &target_st->st_uid);
3951 __put_user(host_st->st_gid, &target_st->st_gid);
3952 __put_user(host_st->st_rdev, &target_st->st_rdev);
3953 __put_user(host_st->st_size, &target_st->st_size);
3954 __put_user(host_st->st_blksize, &target_st->st_blksize);
3955 __put_user(host_st->st_blocks, &target_st->st_blocks);
3956 __put_user(host_st->st_atime, &target_st->target_st_atime);
3957 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
3958 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
3959 unlock_user_struct(target_st, target_addr, 1);
3960 } else
3961 #endif
3962 {
3963 #if TARGET_LONG_BITS == 64
3964 struct target_stat *target_st;
3965 #else
3966 struct target_stat64 *target_st;
3967 #endif
3968
3969 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
3970 return -TARGET_EFAULT;
3971 memset(target_st, 0, sizeof(*target_st));
3972 __put_user(host_st->st_dev, &target_st->st_dev);
3973 __put_user(host_st->st_ino, &target_st->st_ino);
3974 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3975 __put_user(host_st->st_ino, &target_st->__st_ino);
3976 #endif
3977 __put_user(host_st->st_mode, &target_st->st_mode);
3978 __put_user(host_st->st_nlink, &target_st->st_nlink);
3979 __put_user(host_st->st_uid, &target_st->st_uid);
3980 __put_user(host_st->st_gid, &target_st->st_gid);
3981 __put_user(host_st->st_rdev, &target_st->st_rdev);
3982 /* XXX: better use of kernel struct */
3983 __put_user(host_st->st_size, &target_st->st_size);
3984 __put_user(host_st->st_blksize, &target_st->st_blksize);
3985 __put_user(host_st->st_blocks, &target_st->st_blocks);
3986 __put_user(host_st->st_atime, &target_st->target_st_atime);
3987 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
3988 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
3989 unlock_user_struct(target_st, target_addr, 1);
3990 }
3991
3992 return 0;
3993 }
3994 #endif
3995
3996 #if defined(USE_NPTL)
3997 /* ??? Using host futex calls even when target atomic operations
3998 are not really atomic probably breaks things. However implementing
3999 futexes locally would make futexes shared between multiple processes
4000 tricky. However they're probably useless because guest atomic
4001 operations won't work either. */
4002 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4003 target_ulong uaddr2, int val3)
4004 {
4005 struct timespec ts, *pts;
4006
4007 /* ??? We assume FUTEX_* constants are the same on both host
4008 and target. */
4009 #ifdef FUTEX_CMD_MASK
4010 switch ((op&FUTEX_CMD_MASK)) {
4011 #else
4012 switch (op) {
4013 #endif
4014 case FUTEX_WAIT:
4015 if (timeout) {
4016 pts = &ts;
4017 target_to_host_timespec(pts, timeout);
4018 } else {
4019 pts = NULL;
4020 }
4021 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4022 pts, NULL, 0));
4023 case FUTEX_WAKE:
4024 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4025 case FUTEX_WAKE_OP:
4026 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, g2h(uaddr2), val3 ));
4027 case FUTEX_FD:
4028 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4029 case FUTEX_REQUEUE:
4030 return get_errno(sys_futex(g2h(uaddr), op, val,
4031 NULL, g2h(uaddr2), 0));
4032 case FUTEX_CMP_REQUEUE:
4033 return get_errno(sys_futex(g2h(uaddr), op, val,
4034 NULL, g2h(uaddr2), tswap32(val3)));
4035 default:
4036 return -TARGET_ENOSYS;
4037 }
4038 }
4039 #endif
4040
4041 /* Map host to target signal numbers for the wait family of syscalls.
4042 Assume all other status bits are the same. */
4043 static int host_to_target_waitstatus(int status)
4044 {
4045 if (WIFSIGNALED(status)) {
4046 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4047 }
4048 if (WIFSTOPPED(status)) {
4049 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4050 | (status & 0xff);
4051 }
4052 return status;
4053 }
4054
4055 int get_osversion(void)
4056 {
4057 static int osversion;
4058 struct new_utsname buf;
4059 const char *s;
4060 int i, n, tmp;
4061 if (osversion)
4062 return osversion;
4063 if (qemu_uname_release && *qemu_uname_release) {
4064 s = qemu_uname_release;
4065 } else {
4066 if (sys_uname(&buf))
4067 return 0;
4068 s = buf.release;
4069 }
4070 tmp = 0;
4071 for (i = 0; i < 3; i++) {
4072 n = 0;
4073 while (*s >= '0' && *s <= '9') {
4074 n *= 10;
4075 n += *s - '0';
4076 s++;
4077 }
4078 tmp = (tmp << 8) + n;
4079 if (*s == '.')
4080 s++;
4081 }
4082 osversion = tmp;
4083 return osversion;
4084 }
4085
4086 /* do_syscall() should always have a single exit point at the end so
4087 that actions, such as logging of syscall results, can be performed.
4088 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4089 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4090 abi_long arg2, abi_long arg3, abi_long arg4,
4091 abi_long arg5, abi_long arg6)
4092 {
4093 abi_long ret;
4094 struct stat st;
4095 struct statfs stfs;
4096 void *p;
4097
4098 #ifdef DEBUG
4099 gemu_log("syscall %d", num);
4100 #endif
4101 if(do_strace)
4102 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4103
4104 switch(num) {
4105 case TARGET_NR_exit:
4106 #ifdef USE_NPTL
4107 /* In old applications this may be used to implement _exit(2).
4108 However in threaded applictions it is used for thread termination,
4109 and _exit_group is used for application termination.
4110 Do thread termination if we have more then one thread. */
4111 /* FIXME: This probably breaks if a signal arrives. We should probably
4112 be disabling signals. */
4113 if (first_cpu->next_cpu) {
4114 TaskState *ts;
4115 CPUState **lastp;
4116 CPUState *p;
4117
4118 cpu_list_lock();
4119 lastp = &first_cpu;
4120 p = first_cpu;
4121 while (p && p != (CPUState *)cpu_env) {
4122 lastp = &p->next_cpu;
4123 p = p->next_cpu;
4124 }
4125 /* If we didn't find the CPU for this thread then something is
4126 horribly wrong. */
4127 if (!p)
4128 abort();
4129 /* Remove the CPU from the list. */
4130 *lastp = p->next_cpu;
4131 cpu_list_unlock();
4132 ts = ((CPUState *)cpu_env)->opaque;
4133 if (ts->child_tidptr) {
4134 put_user_u32(0, ts->child_tidptr);
4135 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4136 NULL, NULL, 0);
4137 }
4138 /* TODO: Free CPU state. */
4139 pthread_exit(NULL);
4140 }
4141 #endif
4142 #ifdef HAVE_GPROF
4143 _mcleanup();
4144 #endif
4145 gdb_exit(cpu_env, arg1);
4146 _exit(arg1);
4147 ret = 0; /* avoid warning */
4148 break;
4149 case TARGET_NR_read:
4150 if (arg3 == 0)
4151 ret = 0;
4152 else {
4153 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4154 goto efault;
4155 ret = get_errno(read(arg1, p, arg3));
4156 unlock_user(p, arg2, ret);
4157 }
4158 break;
4159 case TARGET_NR_write:
4160 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4161 goto efault;
4162 ret = get_errno(write(arg1, p, arg3));
4163 unlock_user(p, arg2, 0);
4164 break;
4165 case TARGET_NR_open:
4166 if (!(p = lock_user_string(arg1)))
4167 goto efault;
4168 ret = get_errno(open(path(p),
4169 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4170 arg3));
4171 unlock_user(p, arg1, 0);
4172 break;
4173 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4174 case TARGET_NR_openat:
4175 if (!(p = lock_user_string(arg2)))
4176 goto efault;
4177 ret = get_errno(sys_openat(arg1,
4178 path(p),
4179 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4180 arg4));
4181 unlock_user(p, arg2, 0);
4182 break;
4183 #endif
4184 case TARGET_NR_close:
4185 ret = get_errno(close(arg1));
4186 break;
4187 case TARGET_NR_brk:
4188 ret = do_brk(arg1);
4189 break;
4190 case TARGET_NR_fork:
4191 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4192 break;
4193 #ifdef TARGET_NR_waitpid
4194 case TARGET_NR_waitpid:
4195 {
4196 int status;
4197 ret = get_errno(waitpid(arg1, &status, arg3));
4198 if (!is_error(ret) && arg2
4199 && put_user_s32(host_to_target_waitstatus(status), arg2))
4200 goto efault;
4201 }
4202 break;
4203 #endif
4204 #ifdef TARGET_NR_waitid
4205 case TARGET_NR_waitid:
4206 {
4207 siginfo_t info;
4208 info.si_pid = 0;
4209 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4210 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4211 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4212 goto efault;
4213 host_to_target_siginfo(p, &info);
4214 unlock_user(p, arg3, sizeof(target_siginfo_t));
4215 }
4216 }
4217 break;
4218 #endif
4219 #ifdef TARGET_NR_creat /* not on alpha */
4220 case TARGET_NR_creat:
4221 if (!(p = lock_user_string(arg1)))
4222 goto efault;
4223 ret = get_errno(creat(p, arg2));
4224 unlock_user(p, arg1, 0);
4225 break;
4226 #endif
4227 case TARGET_NR_link:
4228 {
4229 void * p2;
4230 p = lock_user_string(arg1);
4231 p2 = lock_user_string(arg2);
4232 if (!p || !p2)
4233 ret = -TARGET_EFAULT;
4234 else
4235 ret = get_errno(link(p, p2));
4236 unlock_user(p2, arg2, 0);
4237 unlock_user(p, arg1, 0);
4238 }
4239 break;
4240 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4241 case TARGET_NR_linkat:
4242 {
4243 void * p2 = NULL;
4244 if (!arg2 || !arg4)
4245 goto efault;
4246 p = lock_user_string(arg2);
4247 p2 = lock_user_string(arg4);
4248 if (!p || !p2)
4249 ret = -TARGET_EFAULT;
4250 else
4251 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4252 unlock_user(p, arg2, 0);
4253 unlock_user(p2, arg4, 0);
4254 }
4255 break;
4256 #endif
4257 case TARGET_NR_unlink:
4258 if (!(p = lock_user_string(arg1)))
4259 goto efault;
4260 ret = get_errno(unlink(p));
4261 unlock_user(p, arg1, 0);
4262 break;
4263 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4264 case TARGET_NR_unlinkat:
4265 if (!(p = lock_user_string(arg2)))
4266 goto efault;
4267 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4268 unlock_user(p, arg2, 0);
4269 break;
4270 #endif
4271 case TARGET_NR_execve:
4272 {
4273 char **argp, **envp;
4274 int argc, envc;
4275 abi_ulong gp;
4276 abi_ulong guest_argp;
4277 abi_ulong guest_envp;
4278 abi_ulong addr;
4279 char **q;
4280
4281 argc = 0;
4282 guest_argp = arg2;
4283 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4284 if (get_user_ual(addr, gp))
4285 goto efault;
4286 if (!addr)
4287 break;
4288 argc++;
4289 }
4290 envc = 0;
4291 guest_envp = arg3;
4292 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4293 if (get_user_ual(addr, gp))
4294 goto efault;
4295 if (!addr)
4296 break;
4297 envc++;
4298 }
4299
4300 argp = alloca((argc + 1) * sizeof(void *));
4301 envp = alloca((envc + 1) * sizeof(void *));
4302
4303 for (gp = guest_argp, q = argp; gp;
4304 gp += sizeof(abi_ulong), q++) {
4305 if (get_user_ual(addr, gp))
4306 goto execve_efault;
4307 if (!addr)
4308 break;
4309 if (!(*q = lock_user_string(addr)))
4310 goto execve_efault;
4311 }
4312 *q = NULL;
4313
4314 for (gp = guest_envp, q = envp; gp;
4315 gp += sizeof(abi_ulong), q++) {
4316 if (get_user_ual(addr, gp))
4317 goto execve_efault;
4318 if (!addr)
4319 break;
4320 if (!(*q = lock_user_string(addr)))
4321 goto execve_efault;
4322 }
4323 *q = NULL;
4324
4325 if (!(p = lock_user_string(arg1)))
4326 goto execve_efault;
4327 ret = get_errno(execve(p, argp, envp));
4328 unlock_user(p, arg1, 0);
4329
4330 goto execve_end;
4331
4332 execve_efault:
4333 ret = -TARGET_EFAULT;
4334
4335 execve_end:
4336 for (gp = guest_argp, q = argp; *q;
4337 gp += sizeof(abi_ulong), q++) {
4338 if (get_user_ual(addr, gp)
4339 || !addr)
4340 break;
4341 unlock_user(*q, addr, 0);
4342 }
4343 for (gp = guest_envp, q = envp; *q;
4344 gp += sizeof(abi_ulong), q++) {
4345 if (get_user_ual(addr, gp)
4346 || !addr)
4347 break;
4348 unlock_user(*q, addr, 0);
4349 }
4350 }
4351 break;
4352 case TARGET_NR_chdir:
4353 if (!(p = lock_user_string(arg1)))
4354 goto efault;
4355 ret = get_errno(chdir(p));
4356 unlock_user(p, arg1, 0);
4357 break;
4358 #ifdef TARGET_NR_time
4359 case TARGET_NR_time:
4360 {
4361 time_t host_time;
4362 ret = get_errno(time(&host_time));
4363 if (!is_error(ret)
4364 && arg1
4365 && put_user_sal(host_time, arg1))
4366 goto efault;
4367 }
4368 break;
4369 #endif
4370 case TARGET_NR_mknod:
4371 if (!(p = lock_user_string(arg1)))
4372 goto efault;
4373 ret = get_errno(mknod(p, arg2, arg3));
4374 unlock_user(p, arg1, 0);
4375 break;
4376 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4377 case TARGET_NR_mknodat:
4378 if (!(p = lock_user_string(arg2)))
4379 goto efault;
4380 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4381 unlock_user(p, arg2, 0);
4382 break;
4383 #endif
4384 case TARGET_NR_chmod:
4385 if (!(p = lock_user_string(arg1)))
4386 goto efault;
4387 ret = get_errno(chmod(p, arg2));
4388 unlock_user(p, arg1, 0);
4389 break;
4390 #ifdef TARGET_NR_break
4391 case TARGET_NR_break:
4392 goto unimplemented;
4393 #endif
4394 #ifdef TARGET_NR_oldstat
4395 case TARGET_NR_oldstat:
4396 goto unimplemented;
4397 #endif
4398 case TARGET_NR_lseek:
4399 ret = get_errno(lseek(arg1, arg2, arg3));
4400 break;
4401 #ifdef TARGET_NR_getxpid
4402 case TARGET_NR_getxpid:
4403 #else
4404 case TARGET_NR_getpid:
4405 #endif
4406 ret = get_errno(getpid());
4407 break;
4408 case TARGET_NR_mount:
4409 {
4410 /* need to look at the data field */
4411 void *p2, *p3;
4412 p = lock_user_string(arg1);
4413 p2 = lock_user_string(arg2);
4414 p3 = lock_user_string(arg3);
4415 if (!p || !p2 || !p3)
4416 ret = -TARGET_EFAULT;
4417 else
4418 /* FIXME - arg5 should be locked, but it isn't clear how to
4419 * do that since it's not guaranteed to be a NULL-terminated
4420 * string.
4421 */
4422 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4423 unlock_user(p, arg1, 0);
4424 unlock_user(p2, arg2, 0);
4425 unlock_user(p3, arg3, 0);
4426 break;
4427 }
4428 #ifdef TARGET_NR_umount
4429 case TARGET_NR_umount:
4430 if (!(p = lock_user_string(arg1)))
4431 goto efault;
4432 ret = get_errno(umount(p));
4433 unlock_user(p, arg1, 0);
4434 break;
4435 #endif
4436 #ifdef TARGET_NR_stime /* not on alpha */
4437 case TARGET_NR_stime:
4438 {
4439 time_t host_time;
4440 if (get_user_sal(host_time, arg1))
4441 goto efault;
4442 ret = get_errno(stime(&host_time));
4443 }
4444 break;
4445 #endif
4446 case TARGET_NR_ptrace:
4447 goto unimplemented;
4448 #ifdef TARGET_NR_alarm /* not on alpha */
4449 case TARGET_NR_alarm:
4450 ret = alarm(arg1);
4451 break;
4452 #endif
4453 #ifdef TARGET_NR_oldfstat
4454 case TARGET_NR_oldfstat:
4455 goto unimplemented;
4456 #endif
4457 #ifdef TARGET_NR_pause /* not on alpha */
4458 case TARGET_NR_pause:
4459 ret = get_errno(pause());
4460 break;
4461 #endif
4462 #ifdef TARGET_NR_utime
4463 case TARGET_NR_utime:
4464 {
4465 struct utimbuf tbuf, *host_tbuf;
4466 struct target_utimbuf *target_tbuf;
4467 if (arg2) {
4468 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4469 goto efault;
4470 tbuf.actime = tswapl(target_tbuf->actime);
4471 tbuf.modtime = tswapl(target_tbuf->modtime);
4472 unlock_user_struct(target_tbuf, arg2, 0);
4473 host_tbuf = &tbuf;
4474 } else {
4475 host_tbuf = NULL;
4476 }
4477 if (!(p = lock_user_string(arg1)))
4478 goto efault;
4479 ret = get_errno(utime(p, host_tbuf));
4480 unlock_user(p, arg1, 0);
4481 }
4482 break;
4483 #endif
4484 case TARGET_NR_utimes:
4485 {
4486 struct timeval *tvp, tv[2];
4487 if (arg2) {
4488 if (copy_from_user_timeval(&tv[0], arg2)
4489 || copy_from_user_timeval(&tv[1],
4490 arg2 + sizeof(struct target_timeval)))
4491 goto efault;
4492 tvp = tv;
4493 } else {
4494 tvp = NULL;
4495 }
4496 if (!(p = lock_user_string(arg1)))
4497 goto efault;
4498 ret = get_errno(utimes(p, tvp));
4499 unlock_user(p, arg1, 0);
4500 }
4501 break;
4502 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
4503 case TARGET_NR_futimesat:
4504 {
4505 struct timeval *tvp, tv[2];
4506 if (arg3) {
4507 if (copy_from_user_timeval(&tv[0], arg3)
4508 || copy_from_user_timeval(&tv[1],
4509 arg3 + sizeof(struct target_timeval)))
4510 goto efault;
4511 tvp = tv;
4512 } else {
4513 tvp = NULL;
4514 }
4515 if (!(p = lock_user_string(arg2)))
4516 goto efault;
4517 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
4518 unlock_user(p, arg2, 0);
4519 }
4520 break;
4521 #endif
4522 #ifdef TARGET_NR_stty
4523 case TARGET_NR_stty:
4524 goto unimplemented;
4525 #endif
4526 #ifdef TARGET_NR_gtty
4527 case TARGET_NR_gtty:
4528 goto unimplemented;
4529 #endif
4530 case TARGET_NR_access:
4531 if (!(p = lock_user_string(arg1)))
4532 goto efault;
4533 ret = get_errno(access(p, arg2));
4534 unlock_user(p, arg1, 0);
4535 break;
4536 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
4537 case TARGET_NR_faccessat:
4538 if (!(p = lock_user_string(arg2)))
4539 goto efault;
4540 ret = get_errno(sys_faccessat(arg1, p, arg3));
4541 unlock_user(p, arg2, 0);
4542 break;
4543 #endif
4544 #ifdef TARGET_NR_nice /* not on alpha */
4545 case TARGET_NR_nice:
4546 ret = get_errno(nice(arg1));
4547 break;
4548 #endif
4549 #ifdef TARGET_NR_ftime
4550 case TARGET_NR_ftime:
4551 goto unimplemented;
4552 #endif
4553 case TARGET_NR_sync:
4554 sync();
4555 ret = 0;
4556 break;
4557 case TARGET_NR_kill:
4558 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
4559 break;
4560 case TARGET_NR_rename:
4561 {
4562 void *p2;
4563 p = lock_user_string(arg1);
4564 p2 = lock_user_string(arg2);
4565 if (!p || !p2)
4566 ret = -TARGET_EFAULT;
4567 else
4568 ret = get_errno(rename(p, p2));
4569 unlock_user(p2, arg2, 0);
4570 unlock_user(p, arg1, 0);
4571 }
4572 break;
4573 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
4574 case TARGET_NR_renameat:
4575 {
4576 void *p2;
4577 p = lock_user_string(arg2);
4578 p2 = lock_user_string(arg4);
4579 if (!p || !p2)
4580 ret = -TARGET_EFAULT;
4581 else
4582 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
4583 unlock_user(p2, arg4, 0);
4584 unlock_user(p, arg2, 0);
4585 }
4586 break;
4587 #endif
4588 case TARGET_NR_mkdir:
4589 if (!(p = lock_user_string(arg1)))
4590 goto efault;
4591 ret = get_errno(mkdir(p, arg2));
4592 unlock_user(p, arg1, 0);
4593 break;
4594 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
4595 case TARGET_NR_mkdirat:
4596 if (!(p = lock_user_string(arg2)))
4597 goto efault;
4598 ret = get_errno(sys_mkdirat(arg1, p, arg3));
4599 unlock_user(p, arg2, 0);
4600 break;
4601 #endif
4602 case TARGET_NR_rmdir:
4603 if (!(p = lock_user_string(arg1)))
4604 goto efault;
4605 ret = get_errno(rmdir(p));
4606 unlock_user(p, arg1, 0);
4607 break;
4608 case TARGET_NR_dup:
4609 ret = get_errno(dup(arg1));
4610 break;
4611 case TARGET_NR_pipe:
4612 ret = do_pipe(cpu_env, arg1, 0);
4613 break;
4614 #ifdef TARGET_NR_pipe2
4615 case TARGET_NR_pipe2:
4616 ret = do_pipe(cpu_env, arg1, arg2);
4617 break;
4618 #endif
4619 case TARGET_NR_times:
4620 {
4621 struct target_tms *tmsp;
4622 struct tms tms;
4623 ret = get_errno(times(&tms));
4624 if (arg1) {
4625 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
4626 if (!tmsp)
4627 goto efault;
4628 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
4629 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
4630 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
4631 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
4632 }
4633 if (!is_error(ret))
4634 ret = host_to_target_clock_t(ret);
4635 }
4636 break;
4637 #ifdef TARGET_NR_prof
4638 case TARGET_NR_prof:
4639 goto unimplemented;
4640 #endif
4641 #ifdef TARGET_NR_signal
4642 case TARGET_NR_signal:
4643 goto unimplemented;
4644 #endif
4645 case TARGET_NR_acct:
4646 if (arg1 == 0) {
4647 ret = get_errno(acct(NULL));
4648 } else {
4649 if (!(p = lock_user_string(arg1)))
4650 goto efault;
4651 ret = get_errno(acct(path(p)));
4652 unlock_user(p, arg1, 0);
4653 }
4654 break;
4655 #ifdef TARGET_NR_umount2 /* not on alpha */
4656 case TARGET_NR_umount2:
4657 if (!(p = lock_user_string(arg1)))
4658 goto efault;
4659 ret = get_errno(umount2(p, arg2));
4660 unlock_user(p, arg1, 0);
4661 break;
4662 #endif
4663 #ifdef TARGET_NR_lock
4664 case TARGET_NR_lock:
4665 goto unimplemented;
4666 #endif
4667 case TARGET_NR_ioctl:
4668 ret = do_ioctl(arg1, arg2, arg3);
4669 break;
4670 case TARGET_NR_fcntl:
4671 ret = do_fcntl(arg1, arg2, arg3);
4672 break;
4673 #ifdef TARGET_NR_mpx
4674 case TARGET_NR_mpx:
4675 goto unimplemented;
4676 #endif
4677 case TARGET_NR_setpgid:
4678 ret = get_errno(setpgid(arg1, arg2));
4679 break;
4680 #ifdef TARGET_NR_ulimit
4681 case TARGET_NR_ulimit:
4682 goto unimplemented;
4683 #endif
4684 #ifdef TARGET_NR_oldolduname
4685 case TARGET_NR_oldolduname:
4686 goto unimplemented;
4687 #endif
4688 case TARGET_NR_umask:
4689 ret = get_errno(umask(arg1));
4690 break;
4691 case TARGET_NR_chroot:
4692 if (!(p = lock_user_string(arg1)))
4693 goto efault;
4694 ret = get_errno(chroot(p));
4695 unlock_user(p, arg1, 0);
4696 break;
4697 case TARGET_NR_ustat:
4698 goto unimplemented;
4699 case TARGET_NR_dup2:
4700 ret = get_errno(dup2(arg1, arg2));
4701 break;
4702 #ifdef TARGET_NR_getppid /* not on alpha */
4703 case TARGET_NR_getppid:
4704 ret = get_errno(getppid());
4705 break;
4706 #endif
4707 case TARGET_NR_getpgrp:
4708 ret = get_errno(getpgrp());
4709 break;
4710 case TARGET_NR_setsid:
4711 ret = get_errno(setsid());
4712 break;
4713 #ifdef TARGET_NR_sigaction
4714 case TARGET_NR_sigaction:
4715 {
4716 #if !defined(TARGET_MIPS)
4717 struct target_old_sigaction *old_act;
4718 struct target_sigaction act, oact, *pact;
4719 if (arg2) {
4720 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4721 goto efault;
4722 act._sa_handler = old_act->_sa_handler;
4723 target_siginitset(&act.sa_mask, old_act->sa_mask);
4724 act.sa_flags = old_act->sa_flags;
4725 act.sa_restorer = old_act->sa_restorer;
4726 unlock_user_struct(old_act, arg2, 0);
4727 pact = &act;
4728 } else {
4729 pact = NULL;
4730 }
4731 ret = get_errno(do_sigaction(arg1, pact, &oact));
4732 if (!is_error(ret) && arg3) {
4733 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
4734 goto efault;
4735 old_act->_sa_handler = oact._sa_handler;
4736 old_act->sa_mask = oact.sa_mask.sig[0];
4737 old_act->sa_flags = oact.sa_flags;
4738 old_act->sa_restorer = oact.sa_restorer;
4739 unlock_user_struct(old_act, arg3, 1);
4740 }
4741 #else
4742 struct target_sigaction act, oact, *pact, *old_act;
4743
4744 if (arg2) {
4745 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4746 goto efault;
4747 act._sa_handler = old_act->_sa_handler;
4748 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
4749 act.sa_flags = old_act->sa_flags;
4750 unlock_user_struct(old_act, arg2, 0);
4751 pact = &act;
4752 } else {
4753 pact = NULL;
4754 }
4755
4756 ret = get_errno(do_sigaction(arg1, pact, &oact));
4757
4758 if (!is_error(ret) && arg3) {
4759 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
4760 goto efault;
4761 old_act->_sa_handler = oact._sa_handler;
4762 old_act->sa_flags = oact.sa_flags;
4763 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
4764 old_act->sa_mask.sig[1] = 0;
4765 old_act->sa_mask.sig[2] = 0;
4766 old_act->sa_mask.sig[3] = 0;
4767 unlock_user_struct(old_act, arg3, 1);
4768 }
4769 #endif
4770 }
4771 break;
4772 #endif
4773 case TARGET_NR_rt_sigaction:
4774 {
4775 struct target_sigaction *act;
4776 struct target_sigaction *oact;
4777
4778 if (arg2) {
4779 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
4780 goto efault;
4781 } else
4782 act = NULL;
4783 if (arg3) {
4784 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
4785 ret = -TARGET_EFAULT;
4786 goto rt_sigaction_fail;
4787 }
4788 } else
4789 oact = NULL;
4790 ret = get_errno(do_sigaction(arg1, act, oact));
4791 rt_sigaction_fail:
4792 if (act)
4793 unlock_user_struct(act, arg2, 0);
4794 if (oact)
4795 unlock_user_struct(oact, arg3, 1);
4796 }
4797 break;
4798 #ifdef TARGET_NR_sgetmask /* not on alpha */
4799 case TARGET_NR_sgetmask:
4800 {
4801 sigset_t cur_set;
4802 abi_ulong target_set;
4803 sigprocmask(0, NULL, &cur_set);
4804 host_to_target_old_sigset(&target_set, &cur_set);
4805 ret = target_set;
4806 }
4807 break;
4808 #endif
4809 #ifdef TARGET_NR_ssetmask /* not on alpha */
4810 case TARGET_NR_ssetmask:
4811 {
4812 sigset_t set, oset, cur_set;
4813 abi_ulong target_set = arg1;
4814 sigprocmask(0, NULL, &cur_set);
4815 target_to_host_old_sigset(&set, &target_set);
4816 sigorset(&set, &set, &cur_set);
4817 sigprocmask(SIG_SETMASK, &set, &oset);
4818 host_to_target_old_sigset(&target_set, &oset);
4819 ret = target_set;
4820 }
4821 break;
4822 #endif
4823 #ifdef TARGET_NR_sigprocmask
4824 case TARGET_NR_sigprocmask:
4825 {
4826 int how = arg1;
4827 sigset_t set, oldset, *set_ptr;
4828
4829 if (arg2) {
4830 switch(how) {
4831 case TARGET_SIG_BLOCK:
4832 how = SIG_BLOCK;
4833 break;
4834 case TARGET_SIG_UNBLOCK:
4835 how = SIG_UNBLOCK;
4836 break;
4837 case TARGET_SIG_SETMASK:
4838 how = SIG_SETMASK;
4839 break;
4840 default:
4841 ret = -TARGET_EINVAL;
4842 goto fail;
4843 }
4844 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
4845 goto efault;
4846 target_to_host_old_sigset(&set, p);
4847 unlock_user(p, arg2, 0);
4848 set_ptr = &set;
4849 } else {
4850 how = 0;
4851 set_ptr = NULL;
4852 }
4853 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
4854 if (!is_error(ret) && arg3) {
4855 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
4856 goto efault;
4857 host_to_target_old_sigset(p, &oldset);
4858 unlock_user(p, arg3, sizeof(target_sigset_t));
4859 }
4860 }
4861 break;
4862 #endif
4863 case TARGET_NR_rt_sigprocmask:
4864 {
4865 int how = arg1;
4866 sigset_t set, oldset, *set_ptr;
4867
4868 if (arg2) {
4869 switch(how) {
4870 case TARGET_SIG_BLOCK:
4871 how = SIG_BLOCK;
4872 break;
4873 case TARGET_SIG_UNBLOCK:
4874 how = SIG_UNBLOCK;
4875 break;
4876 case TARGET_SIG_SETMASK:
4877 how = SIG_SETMASK;
4878 break;
4879 default:
4880 ret = -TARGET_EINVAL;
4881 goto fail;
4882 }
4883 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
4884 goto efault;
4885 target_to_host_sigset(&set, p);
4886 unlock_user(p, arg2, 0);
4887 set_ptr = &set;
4888 } else {
4889 how = 0;
4890 set_ptr = NULL;
4891 }
4892 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
4893 if (!is_error(ret) && arg3) {
4894 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
4895 goto efault;
4896 host_to_target_sigset(p, &oldset);
4897 unlock_user(p, arg3, sizeof(target_sigset_t));
4898 }
4899 }
4900 break;
4901 #ifdef TARGET_NR_sigpending
4902 case TARGET_NR_sigpending:
4903 {
4904 sigset_t set;
4905 ret = get_errno(sigpending(&set));
4906 if (!is_error(ret)) {
4907 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
4908 goto efault;
4909 host_to_target_old_sigset(p, &set);
4910 unlock_user(p, arg1, sizeof(target_sigset_t));
4911 }
4912 }
4913 break;
4914 #endif
4915 case TARGET_NR_rt_sigpending:
4916 {
4917 sigset_t set;
4918 ret = get_errno(sigpending(&set));
4919 if (!is_error(ret)) {
4920 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
4921 goto efault;
4922 host_to_target_sigset(p, &set);
4923 unlock_user(p, arg1, sizeof(target_sigset_t));
4924 }
4925 }
4926 break;
4927 #ifdef TARGET_NR_sigsuspend
4928 case TARGET_NR_sigsuspend:
4929 {
4930 sigset_t set;
4931 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4932 goto efault;
4933 target_to_host_old_sigset(&set, p);
4934 unlock_user(p, arg1, 0);
4935 ret = get_errno(sigsuspend(&set));
4936 }
4937 break;
4938 #endif
4939 case TARGET_NR_rt_sigsuspend:
4940 {
4941 sigset_t set;
4942 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4943 goto efault;
4944 target_to_host_sigset(&set, p);
4945 unlock_user(p, arg1, 0);
4946 ret = get_errno(sigsuspend(&set));
4947 }
4948 break;
4949 case TARGET_NR_rt_sigtimedwait:
4950 {
4951 sigset_t set;
4952 struct timespec uts, *puts;
4953 siginfo_t uinfo;
4954
4955 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
4956 goto efault;
4957 target_to_host_sigset(&set, p);
4958 unlock_user(p, arg1, 0);
4959 if (arg3) {
4960 puts = &uts;
4961 target_to_host_timespec(puts, arg3);
4962 } else {
4963 puts = NULL;
4964 }
4965 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
4966 if (!is_error(ret) && arg2) {
4967 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
4968 goto efault;
4969 host_to_target_siginfo(p, &uinfo);
4970 unlock_user(p, arg2, sizeof(target_siginfo_t));
4971 }
4972 }
4973 break;
4974 case TARGET_NR_rt_sigqueueinfo:
4975 {
4976 siginfo_t uinfo;
4977 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
4978 goto efault;
4979 target_to_host_siginfo(&uinfo, p);
4980 unlock_user(p, arg1, 0);
4981 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
4982 }
4983 break;
4984 #ifdef TARGET_NR_sigreturn
4985 case TARGET_NR_sigreturn:
4986 /* NOTE: ret is eax, so not transcoding must be done */
4987 ret = do_sigreturn(cpu_env);
4988 break;
4989 #endif
4990 case TARGET_NR_rt_sigreturn:
4991 /* NOTE: ret is eax, so not transcoding must be done */
4992 ret = do_rt_sigreturn(cpu_env);
4993 break;
4994 case TARGET_NR_sethostname:
4995 if (!(p = lock_user_string(arg1)))
4996 goto efault;
4997 ret = get_errno(sethostname(p, arg2));
4998 unlock_user(p, arg1, 0);
4999 break;
5000 case TARGET_NR_setrlimit:
5001 {
5002 /* XXX: convert resource ? */
5003 int resource = arg1;
5004 struct target_rlimit *target_rlim;
5005 struct rlimit rlim;
5006 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5007 goto efault;
5008 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
5009 rlim.rlim_max = tswapl(target_rlim->rlim_max);
5010 unlock_user_struct(target_rlim, arg2, 0);
5011 ret = get_errno(setrlimit(resource, &rlim));
5012 }
5013 break;
5014 case TARGET_NR_getrlimit:
5015 {
5016 /* XXX: convert resource ? */
5017 int resource = arg1;
5018 struct target_rlimit *target_rlim;
5019 struct rlimit rlim;
5020
5021 ret = get_errno(getrlimit(resource, &rlim));
5022 if (!is_error(ret)) {
5023 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5024 goto efault;
5025 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
5026 rlim.rlim_max = tswapl(target_rlim->rlim_max);
5027 unlock_user_struct(target_rlim, arg2, 1);
5028 }
5029 }
5030 break;
5031 case TARGET_NR_getrusage:
5032 {
5033 struct rusage rusage;
5034 ret = get_errno(getrusage(arg1, &rusage));
5035 if (!is_error(ret)) {
5036 host_to_target_rusage(arg2, &rusage);
5037 }
5038 }
5039 break;
5040 case TARGET_NR_gettimeofday:
5041 {
5042 struct timeval tv;
5043 ret = get_errno(gettimeofday(&tv, NULL));
5044 if (!is_error(ret)) {
5045 if (copy_to_user_timeval(arg1, &tv))
5046 goto efault;
5047 }
5048 }
5049 break;
5050 case TARGET_NR_settimeofday:
5051 {
5052 struct timeval tv;
5053 if (copy_from_user_timeval(&tv, arg1))
5054 goto efault;
5055 ret = get_errno(settimeofday(&tv, NULL));
5056 }
5057 break;
5058 #ifdef TARGET_NR_select
5059 case TARGET_NR_select:
5060 {
5061 struct target_sel_arg_struct *sel;
5062 abi_ulong inp, outp, exp, tvp;
5063 long nsel;
5064
5065 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5066 goto efault;
5067 nsel = tswapl(sel->n);
5068 inp = tswapl(sel->inp);
5069 outp = tswapl(sel->outp);
5070 exp = tswapl(sel->exp);
5071 tvp = tswapl(sel->tvp);
5072 unlock_user_struct(sel, arg1, 0);
5073 ret = do_select(nsel, inp, outp, exp, tvp);
5074 }
5075 break;
5076 #endif
5077 case TARGET_NR_symlink:
5078 {
5079 void *p2;
5080 p = lock_user_string(arg1);
5081 p2 = lock_user_string(arg2);
5082 if (!p || !p2)
5083 ret = -TARGET_EFAULT;
5084 else
5085 ret = get_errno(symlink(p, p2));
5086 unlock_user(p2, arg2, 0);
5087 unlock_user(p, arg1, 0);
5088 }
5089 break;
5090 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5091 case TARGET_NR_symlinkat:
5092 {
5093 void *p2;
5094 p = lock_user_string(arg1);
5095 p2 = lock_user_string(arg3);
5096 if (!p || !p2)
5097 ret = -TARGET_EFAULT;
5098 else
5099 ret = get_errno(sys_symlinkat(p, arg2, p2));
5100 unlock_user(p2, arg3, 0);
5101 unlock_user(p, arg1, 0);
5102 }
5103 break;
5104 #endif
5105 #ifdef TARGET_NR_oldlstat
5106 case TARGET_NR_oldlstat:
5107 goto unimplemented;
5108 #endif
5109 case TARGET_NR_readlink:
5110 {
5111 void *p2, *temp;
5112 p = lock_user_string(arg1);
5113 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5114 if (!p || !p2)
5115 ret = -TARGET_EFAULT;
5116 else {
5117 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5118 char real[PATH_MAX];
5119 temp = realpath(exec_path,real);
5120 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5121 snprintf((char *)p2, arg3, "%s", real);
5122 }
5123 else
5124 ret = get_errno(readlink(path(p), p2, arg3));
5125 }
5126 unlock_user(p2, arg2, ret);
5127 unlock_user(p, arg1, 0);
5128 }
5129 break;
5130 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5131 case TARGET_NR_readlinkat:
5132 {
5133 void *p2;
5134 p = lock_user_string(arg2);
5135 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5136 if (!p || !p2)
5137 ret = -TARGET_EFAULT;
5138 else
5139 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5140 unlock_user(p2, arg3, ret);
5141 unlock_user(p, arg2, 0);
5142 }
5143 break;
5144 #endif
5145 #ifdef TARGET_NR_uselib
5146 case TARGET_NR_uselib:
5147 goto unimplemented;
5148 #endif
5149 #ifdef TARGET_NR_swapon
5150 case TARGET_NR_swapon:
5151 if (!(p = lock_user_string(arg1)))
5152 goto efault;
5153 ret = get_errno(swapon(p, arg2));
5154 unlock_user(p, arg1, 0);
5155 break;
5156 #endif
5157 case TARGET_NR_reboot:
5158 goto unimplemented;
5159 #ifdef TARGET_NR_readdir
5160 case TARGET_NR_readdir:
5161 goto unimplemented;
5162 #endif
5163 #ifdef TARGET_NR_mmap
5164 case TARGET_NR_mmap:
5165 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5166 {
5167 abi_ulong *v;
5168 abi_ulong v1, v2, v3, v4, v5, v6;
5169 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5170 goto efault;
5171 v1 = tswapl(v[0]);
5172 v2 = tswapl(v[1]);
5173 v3 = tswapl(v[2]);
5174 v4 = tswapl(v[3]);
5175 v5 = tswapl(v[4]);
5176 v6 = tswapl(v[5]);
5177 unlock_user(v, arg1, 0);
5178 ret = get_errno(target_mmap(v1, v2, v3,
5179 target_to_host_bitmask(v4, mmap_flags_tbl),
5180 v5, v6));
5181 }
5182 #else
5183 ret = get_errno(target_mmap(arg1, arg2, arg3,
5184 target_to_host_bitmask(arg4, mmap_flags_tbl),
5185 arg5,
5186 arg6));
5187 #endif
5188 break;
5189 #endif
5190 #ifdef TARGET_NR_mmap2
5191 case TARGET_NR_mmap2:
5192 #ifndef MMAP_SHIFT
5193 #define MMAP_SHIFT 12
5194 #endif
5195 ret = get_errno(target_mmap(arg1, arg2, arg3,
5196 target_to_host_bitmask(arg4, mmap_flags_tbl),
5197 arg5,
5198 arg6 << MMAP_SHIFT));
5199 break;
5200 #endif
5201 case TARGET_NR_munmap:
5202 ret = get_errno(target_munmap(arg1, arg2));
5203 break;
5204 case TARGET_NR_mprotect:
5205 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5206 break;
5207 #ifdef TARGET_NR_mremap
5208 case TARGET_NR_mremap:
5209 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5210 break;
5211 #endif
5212 /* ??? msync/mlock/munlock are broken for softmmu. */
5213 #ifdef TARGET_NR_msync
5214 case TARGET_NR_msync:
5215 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5216 break;
5217 #endif
5218 #ifdef TARGET_NR_mlock
5219 case TARGET_NR_mlock:
5220 ret = get_errno(mlock(g2h(arg1), arg2));
5221 break;
5222 #endif
5223 #ifdef TARGET_NR_munlock
5224 case TARGET_NR_munlock:
5225 ret = get_errno(munlock(g2h(arg1), arg2));
5226 break;
5227 #endif
5228 #ifdef TARGET_NR_mlockall
5229 case TARGET_NR_mlockall:
5230 ret = get_errno(mlockall(arg1));
5231 break;
5232 #endif
5233 #ifdef TARGET_NR_munlockall
5234 case TARGET_NR_munlockall:
5235 ret = get_errno(munlockall());
5236 break;
5237 #endif
5238 case TARGET_NR_truncate:
5239 if (!(p = lock_user_string(arg1)))
5240 goto efault;
5241 ret = get_errno(truncate(p, arg2));
5242 unlock_user(p, arg1, 0);
5243 break;
5244 case TARGET_NR_ftruncate:
5245 ret = get_errno(ftruncate(arg1, arg2));
5246 break;
5247 case TARGET_NR_fchmod:
5248 ret = get_errno(fchmod(arg1, arg2));
5249 break;
5250 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5251 case TARGET_NR_fchmodat:
5252 if (!(p = lock_user_string(arg2)))
5253 goto efault;
5254 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5255 unlock_user(p, arg2, 0);
5256 break;
5257 #endif
5258 case TARGET_NR_getpriority:
5259 /* libc does special remapping of the return value of
5260 * sys_getpriority() so it's just easiest to call
5261 * sys_getpriority() directly rather than through libc. */
5262 ret = sys_getpriority(arg1, arg2);
5263 break;
5264 case TARGET_NR_setpriority:
5265 ret = get_errno(setpriority(arg1, arg2, arg3));
5266 break;
5267 #ifdef TARGET_NR_profil
5268 case TARGET_NR_profil:
5269 goto unimplemented;
5270 #endif
5271 case TARGET_NR_statfs:
5272 if (!(p = lock_user_string(arg1)))
5273 goto efault;
5274 ret = get_errno(statfs(path(p), &stfs));
5275 unlock_user(p, arg1, 0);
5276 convert_statfs:
5277 if (!is_error(ret)) {
5278 struct target_statfs *target_stfs;
5279
5280 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5281 goto efault;
5282 __put_user(stfs.f_type, &target_stfs->f_type);
5283 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5284 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5285 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5286 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5287 __put_user(stfs.f_files, &target_stfs->f_files);
5288 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5289 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5290 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5291 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5292 unlock_user_struct(target_stfs, arg2, 1);
5293 }
5294 break;
5295 case TARGET_NR_fstatfs:
5296 ret = get_errno(fstatfs(arg1, &stfs));
5297 goto convert_statfs;
5298 #ifdef TARGET_NR_statfs64
5299 case TARGET_NR_statfs64:
5300 if (!(p = lock_user_string(arg1)))
5301 goto efault;
5302 ret = get_errno(statfs(path(p), &stfs));
5303 unlock_user(p, arg1, 0);
5304 convert_statfs64:
5305 if (!is_error(ret)) {
5306 struct target_statfs64 *target_stfs;
5307
5308 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5309 goto efault;
5310 __put_user(stfs.f_type, &target_stfs->f_type);
5311 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5312 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5313 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5314 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5315 __put_user(stfs.f_files, &target_stfs->f_files);
5316 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5317 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5318 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5319 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5320 unlock_user_struct(target_stfs, arg3, 1);
5321 }
5322 break;
5323 case TARGET_NR_fstatfs64:
5324 ret = get_errno(fstatfs(arg1, &stfs));
5325 goto convert_statfs64;
5326 #endif
5327 #ifdef TARGET_NR_ioperm
5328 case TARGET_NR_ioperm:
5329 goto unimplemented;
5330 #endif
5331 #ifdef TARGET_NR_socketcall
5332 case TARGET_NR_socketcall:
5333 ret = do_socketcall(arg1, arg2);
5334 break;
5335 #endif
5336 #ifdef TARGET_NR_accept
5337 case TARGET_NR_accept:
5338 ret = do_accept(arg1, arg2, arg3);
5339 break;
5340 #endif
5341 #ifdef TARGET_NR_bind
5342 case TARGET_NR_bind:
5343 ret = do_bind(arg1, arg2, arg3);
5344 break;
5345 #endif
5346 #ifdef TARGET_NR_connect
5347 case TARGET_NR_connect:
5348 ret = do_connect(arg1, arg2, arg3);
5349 break;
5350 #endif
5351 #ifdef TARGET_NR_getpeername
5352 case TARGET_NR_getpeername:
5353 ret = do_getpeername(arg1, arg2, arg3);
5354 break;
5355 #endif
5356 #ifdef TARGET_NR_getsockname
5357 case TARGET_NR_getsockname:
5358 ret = do_getsockname(arg1, arg2, arg3);
5359 break;
5360 #endif
5361 #ifdef TARGET_NR_getsockopt
5362 case TARGET_NR_getsockopt:
5363 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5364 break;
5365 #endif
5366 #ifdef TARGET_NR_listen
5367 case TARGET_NR_listen:
5368 ret = get_errno(listen(arg1, arg2));
5369 break;
5370 #endif
5371 #ifdef TARGET_NR_recv
5372 case TARGET_NR_recv:
5373 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5374 break;
5375 #endif
5376 #ifdef TARGET_NR_recvfrom
5377 case TARGET_NR_recvfrom:
5378 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5379 break;
5380 #endif
5381 #ifdef TARGET_NR_recvmsg
5382 case TARGET_NR_recvmsg:
5383 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5384 break;
5385 #endif
5386 #ifdef TARGET_NR_send
5387 case TARGET_NR_send:
5388 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5389 break;
5390 #endif
5391 #ifdef TARGET_NR_sendmsg
5392 case TARGET_NR_sendmsg:
5393 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5394 break;
5395 #endif
5396 #ifdef TARGET_NR_sendto
5397 case TARGET_NR_sendto:
5398 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5399 break;
5400 #endif
5401 #ifdef TARGET_NR_shutdown
5402 case TARGET_NR_shutdown:
5403 ret = get_errno(shutdown(arg1, arg2));
5404 break;
5405 #endif
5406 #ifdef TARGET_NR_socket
5407 case TARGET_NR_socket:
5408 ret = do_socket(arg1, arg2, arg3);
5409 break;
5410 #endif
5411 #ifdef TARGET_NR_socketpair
5412 case TARGET_NR_socketpair:
5413 ret = do_socketpair(arg1, arg2, arg3, arg4);
5414 break;
5415 #endif
5416 #ifdef TARGET_NR_setsockopt
5417 case TARGET_NR_setsockopt:
5418 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5419 break;
5420 #endif
5421
5422 case TARGET_NR_syslog:
5423 if (!(p = lock_user_string(arg2)))
5424 goto efault;
5425 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5426 unlock_user(p, arg2, 0);
5427 break;
5428
5429 case TARGET_NR_setitimer:
5430 {
5431 struct itimerval value, ovalue, *pvalue;
5432
5433 if (arg2) {
5434 pvalue = &value;
5435 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5436 || copy_from_user_timeval(&pvalue->it_value,
5437 arg2 + sizeof(struct target_timeval)))
5438 goto efault;
5439 } else {
5440 pvalue = NULL;
5441 }
5442 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5443 if (!is_error(ret) && arg3) {
5444 if (copy_to_user_timeval(arg3,
5445 &ovalue.it_interval)
5446 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5447 &ovalue.it_value))
5448 goto efault;
5449 }
5450 }
5451 break;
5452 case TARGET_NR_getitimer:
5453 {
5454 struct itimerval value;
5455
5456 ret = get_errno(getitimer(arg1, &value));
5457 if (!is_error(ret) && arg2) {
5458 if (copy_to_user_timeval(arg2,
5459 &value.it_interval)
5460 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5461 &value.it_value))
5462 goto efault;
5463 }
5464 }
5465 break;
5466 case TARGET_NR_stat:
5467 if (!(p = lock_user_string(arg1)))
5468 goto efault;
5469 ret = get_errno(stat(path(p), &st));
5470 unlock_user(p, arg1, 0);
5471 goto do_stat;
5472 case TARGET_NR_lstat:
5473 if (!(p = lock_user_string(arg1)))
5474 goto efault;
5475 ret = get_errno(lstat(path(p), &st));
5476 unlock_user(p, arg1, 0);
5477 goto do_stat;
5478 case TARGET_NR_fstat:
5479 {
5480 ret = get_errno(fstat(arg1, &st));
5481 do_stat:
5482 if (!is_error(ret)) {
5483 struct target_stat *target_st;
5484
5485 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5486 goto efault;
5487 __put_user(st.st_dev, &target_st->st_dev);
5488 __put_user(st.st_ino, &target_st->st_ino);
5489 __put_user(st.st_mode, &target_st->st_mode);
5490 __put_user(st.st_uid, &target_st->st_uid);
5491 __put_user(st.st_gid, &target_st->st_gid);
5492 __put_user(st.st_nlink, &target_st->st_nlink);
5493 __put_user(st.st_rdev, &target_st->st_rdev);
5494 __put_user(st.st_size, &target_st->st_size);
5495 __put_user(st.st_blksize, &target_st->st_blksize);
5496 __put_user(st.st_blocks, &target_st->st_blocks);
5497 __put_user(st.st_atime, &target_st->target_st_atime);
5498 __put_user(st.st_mtime, &target_st->target_st_mtime);
5499 __put_user(st.st_ctime, &target_st->target_st_ctime);
5500 unlock_user_struct(target_st, arg2, 1);
5501 }
5502 }
5503 break;
5504 #ifdef TARGET_NR_olduname
5505 case TARGET_NR_olduname:
5506 goto unimplemented;
5507 #endif
5508 #ifdef TARGET_NR_iopl
5509 case TARGET_NR_iopl:
5510 goto unimplemented;
5511 #endif
5512 case TARGET_NR_vhangup:
5513 ret = get_errno(vhangup());
5514 break;
5515 #ifdef TARGET_NR_idle
5516 case TARGET_NR_idle:
5517 goto unimplemented;
5518 #endif
5519 #ifdef TARGET_NR_syscall
5520 case TARGET_NR_syscall:
5521 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5522 break;
5523 #endif
5524 case TARGET_NR_wait4:
5525 {
5526 int status;
5527 abi_long status_ptr = arg2;
5528 struct rusage rusage, *rusage_ptr;
5529 abi_ulong target_rusage = arg4;
5530 if (target_rusage)
5531 rusage_ptr = &rusage;
5532 else
5533 rusage_ptr = NULL;
5534 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5535 if (!is_error(ret)) {
5536 if (status_ptr) {
5537 status = host_to_target_waitstatus(status);
5538 if (put_user_s32(status, status_ptr))
5539 goto efault;
5540 }
5541 if (target_rusage)
5542 host_to_target_rusage(target_rusage, &rusage);
5543 }
5544 }
5545 break;
5546 #ifdef TARGET_NR_swapoff
5547 case TARGET_NR_swapoff:
5548 if (!(p = lock_user_string(arg1)))
5549 goto efault;
5550 ret = get_errno(swapoff(p));
5551 unlock_user(p, arg1, 0);
5552 break;
5553 #endif
5554 case TARGET_NR_sysinfo:
5555 {
5556 struct target_sysinfo *target_value;
5557 struct sysinfo value;
5558 ret = get_errno(sysinfo(&value));
5559 if (!is_error(ret) && arg1)
5560 {
5561 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5562 goto efault;
5563 __put_user(value.uptime, &target_value->uptime);
5564 __put_user(value.loads[0], &target_value->loads[0]);
5565 __put_user(value.loads[1], &target_value->loads[1]);
5566 __put_user(value.loads[2], &target_value->loads[2]);
5567 __put_user(value.totalram, &target_value->totalram);
5568 __put_user(value.freeram, &target_value->freeram);
5569 __put_user(value.sharedram, &target_value->sharedram);
5570 __put_user(value.bufferram, &target_value->bufferram);
5571 __put_user(value.totalswap, &target_value->totalswap);
5572 __put_user(value.freeswap, &target_value->freeswap);
5573 __put_user(value.procs, &target_value->procs);
5574 __put_user(value.totalhigh, &target_value->totalhigh);
5575 __put_user(value.freehigh, &target_value->freehigh);
5576 __put_user(value.mem_unit, &target_value->mem_unit);
5577 unlock_user_struct(target_value, arg1, 1);
5578 }
5579 }
5580 break;
5581 #ifdef TARGET_NR_ipc
5582 case TARGET_NR_ipc:
5583 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5584 break;
5585 #endif
5586 #ifdef TARGET_NR_semget
5587 case TARGET_NR_semget:
5588 ret = get_errno(semget(arg1, arg2, arg3));
5589 break;
5590 #endif
5591 #ifdef TARGET_NR_semop
5592 case TARGET_NR_semop:
5593 ret = get_errno(do_semop(arg1, arg2, arg3));
5594 break;
5595 #endif
5596 #ifdef TARGET_NR_semctl
5597 case TARGET_NR_semctl:
5598 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5599 break;
5600 #endif
5601 #ifdef TARGET_NR_msgctl
5602 case TARGET_NR_msgctl:
5603 ret = do_msgctl(arg1, arg2, arg3);
5604 break;
5605 #endif
5606 #ifdef TARGET_NR_msgget
5607 case TARGET_NR_msgget:
5608 ret = get_errno(msgget(arg1, arg2));
5609 break;
5610 #endif
5611 #ifdef TARGET_NR_msgrcv
5612 case TARGET_NR_msgrcv:
5613 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
5614 break;
5615 #endif
5616 #ifdef TARGET_NR_msgsnd
5617 case TARGET_NR_msgsnd:
5618 ret = do_msgsnd(arg1, arg2, arg3, arg4);
5619 break;
5620 #endif
5621 #ifdef TARGET_NR_shmget
5622 case TARGET_NR_shmget:
5623 ret = get_errno(shmget(arg1, arg2, arg3));
5624 break;
5625 #endif
5626 #ifdef TARGET_NR_shmctl
5627 case TARGET_NR_shmctl:
5628 ret = do_shmctl(arg1, arg2, arg3);
5629 break;
5630 #endif
5631 #ifdef TARGET_NR_shmat
5632 case TARGET_NR_shmat:
5633 ret = do_shmat(arg1, arg2, arg3);
5634 break;
5635 #endif
5636 #ifdef TARGET_NR_shmdt
5637 case TARGET_NR_shmdt:
5638 ret = do_shmdt(arg1);
5639 break;
5640 #endif
5641 case TARGET_NR_fsync:
5642 ret = get_errno(fsync(arg1));
5643 break;
5644 case TARGET_NR_clone:
5645 #if defined(TARGET_SH4)
5646 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
5647 #elif defined(TARGET_CRIS)
5648 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
5649 #else
5650 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
5651 #endif
5652 break;
5653 #ifdef __NR_exit_group
5654 /* new thread calls */
5655 case TARGET_NR_exit_group:
5656 #ifdef HAVE_GPROF
5657 _mcleanup();
5658 #endif
5659 gdb_exit(cpu_env, arg1);
5660 ret = get_errno(exit_group(arg1));
5661 break;
5662 #endif
5663 case TARGET_NR_setdomainname:
5664 if (!(p = lock_user_string(arg1)))
5665 goto efault;
5666 ret = get_errno(setdomainname(p, arg2));
5667 unlock_user(p, arg1, 0);
5668 break;
5669 case TARGET_NR_uname:
5670 /* no need to transcode because we use the linux syscall */
5671 {
5672 struct new_utsname * buf;
5673
5674 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
5675 goto efault;
5676 ret = get_errno(sys_uname(buf));
5677 if (!is_error(ret)) {
5678 /* Overrite the native machine name with whatever is being
5679 emulated. */
5680 strcpy (buf->machine, UNAME_MACHINE);
5681 /* Allow the user to override the reported release. */
5682 if (qemu_uname_release && *qemu_uname_release)
5683 strcpy (buf->release, qemu_uname_release);
5684 }
5685 unlock_user_struct(buf, arg1, 1);
5686 }
5687 break;
5688 #ifdef TARGET_I386
5689 case TARGET_NR_modify_ldt:
5690 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
5691 break;
5692 #if !defined(TARGET_X86_64)
5693 case TARGET_NR_vm86old:
5694 goto unimplemented;
5695 case TARGET_NR_vm86:
5696 ret = do_vm86(cpu_env, arg1, arg2);
5697 break;
5698 #endif
5699 #endif
5700 case TARGET_NR_adjtimex:
5701 goto unimplemented;
5702 #ifdef TARGET_NR_create_module
5703 case TARGET_NR_create_module:
5704 #endif
5705 case TARGET_NR_init_module:
5706 case TARGET_NR_delete_module:
5707 #ifdef TARGET_NR_get_kernel_syms
5708 case TARGET_NR_get_kernel_syms:
5709 #endif
5710 goto unimplemented;
5711 case TARGET_NR_quotactl:
5712 goto unimplemented;
5713 case TARGET_NR_getpgid:
5714 ret = get_errno(getpgid(arg1));
5715 break;
5716 case TARGET_NR_fchdir:
5717 ret = get_errno(fchdir(arg1));
5718 break;
5719 #ifdef TARGET_NR_bdflush /* not on x86_64 */
5720 case TARGET_NR_bdflush:
5721 goto unimplemented;
5722 #endif
5723 #ifdef TARGET_NR_sysfs
5724 case TARGET_NR_sysfs:
5725 goto unimplemented;
5726 #endif
5727 case TARGET_NR_personality:
5728 ret = get_errno(personality(arg1));
5729 break;
5730 #ifdef TARGET_NR_afs_syscall
5731 case TARGET_NR_afs_syscall:
5732 goto unimplemented;
5733 #endif
5734 #ifdef TARGET_NR__llseek /* Not on alpha */
5735 case TARGET_NR__llseek:
5736 {
5737 #if defined (__x86_64__)
5738 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
5739 if (put_user_s64(ret, arg4))
5740 goto efault;
5741 #else
5742 int64_t res;
5743 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
5744 if (put_user_s64(res, arg4))
5745 goto efault;
5746 #endif
5747 }
5748 break;
5749 #endif
5750 case TARGET_NR_getdents:
5751 #if TARGET_ABI_BITS != 32
5752 goto unimplemented;
5753 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
5754 {
5755 struct target_dirent *target_dirp;
5756 struct linux_dirent *dirp;
5757 abi_long count = arg3;
5758
5759 dirp = malloc(count);
5760 if (!dirp) {
5761 ret = -TARGET_ENOMEM;
5762 goto fail;
5763 }
5764
5765 ret = get_errno(sys_getdents(arg1, dirp, count));
5766 if (!is_error(ret)) {
5767 struct linux_dirent *de;
5768 struct target_dirent *tde;
5769 int len = ret;
5770 int reclen, treclen;
5771 int count1, tnamelen;
5772
5773 count1 = 0;
5774 de = dirp;
5775 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5776 goto efault;
5777 tde = target_dirp;
5778 while (len > 0) {
5779 reclen = de->d_reclen;
5780 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
5781 tde->d_reclen = tswap16(treclen);
5782 tde->d_ino = tswapl(de->d_ino);
5783 tde->d_off = tswapl(de->d_off);
5784 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
5785 if (tnamelen > 256)
5786 tnamelen = 256;
5787 /* XXX: may not be correct */
5788 pstrcpy(tde->d_name, tnamelen, de->d_name);
5789 de = (struct linux_dirent *)((char *)de + reclen);
5790 len -= reclen;
5791 tde = (struct target_dirent *)((char *)tde + treclen);
5792 count1 += treclen;
5793 }
5794 ret = count1;
5795 unlock_user(target_dirp, arg2, ret);
5796 }
5797 free(dirp);
5798 }
5799 #else
5800 {
5801 struct linux_dirent *dirp;
5802 abi_long count = arg3;
5803
5804 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5805 goto efault;
5806 ret = get_errno(sys_getdents(arg1, dirp, count));
5807 if (!is_error(ret)) {
5808 struct linux_dirent *de;
5809 int len = ret;
5810 int reclen;
5811 de = dirp;
5812 while (len > 0) {
5813 reclen = de->d_reclen;
5814 if (reclen > len)
5815 break;
5816 de->d_reclen = tswap16(reclen);
5817 tswapls(&de->d_ino);
5818 tswapls(&de->d_off);
5819 de = (struct linux_dirent *)((char *)de + reclen);
5820 len -= reclen;
5821 }
5822 }
5823 unlock_user(dirp, arg2, ret);
5824 }
5825 #endif
5826 break;
5827 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
5828 case TARGET_NR_getdents64:
5829 {
5830 struct linux_dirent64 *dirp;
5831 abi_long count = arg3;
5832 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
5833 goto efault;
5834 ret = get_errno(sys_getdents64(arg1, dirp, count));
5835 if (!is_error(ret)) {
5836 struct linux_dirent64 *de;
5837 int len = ret;
5838 int reclen;
5839 de = dirp;
5840 while (len > 0) {
5841 reclen = de->d_reclen;
5842 if (reclen > len)
5843 break;
5844 de->d_reclen = tswap16(reclen);
5845 tswap64s((uint64_t *)&de->d_ino);
5846 tswap64s((uint64_t *)&de->d_off);
5847 de = (struct linux_dirent64 *)((char *)de + reclen);
5848 len -= reclen;
5849 }
5850 }
5851 unlock_user(dirp, arg2, ret);
5852 }
5853 break;
5854 #endif /* TARGET_NR_getdents64 */
5855 #ifdef TARGET_NR__newselect
5856 case TARGET_NR__newselect:
5857 ret = do_select(arg1, arg2, arg3, arg4, arg5);
5858 break;
5859 #endif
5860 #ifdef TARGET_NR_poll
5861 case TARGET_NR_poll:
5862 {
5863 struct target_pollfd *target_pfd;
5864 unsigned int nfds = arg2;
5865 int timeout = arg3;
5866 struct pollfd *pfd;
5867 unsigned int i;
5868
5869 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
5870 if (!target_pfd)
5871 goto efault;
5872 pfd = alloca(sizeof(struct pollfd) * nfds);
5873 for(i = 0; i < nfds; i++) {
5874 pfd[i].fd = tswap32(target_pfd[i].fd);
5875 pfd[i].events = tswap16(target_pfd[i].events);
5876 }
5877 ret = get_errno(poll(pfd, nfds, timeout));
5878 if (!is_error(ret)) {
5879 for(i = 0; i < nfds; i++) {
5880 target_pfd[i].revents = tswap16(pfd[i].revents);
5881 }
5882 ret += nfds * (sizeof(struct target_pollfd)
5883 - sizeof(struct pollfd));
5884 }
5885 unlock_user(target_pfd, arg1, ret);
5886 }
5887 break;
5888 #endif
5889 case TARGET_NR_flock:
5890 /* NOTE: the flock constant seems to be the same for every
5891 Linux platform */
5892 ret = get_errno(flock(arg1, arg2));
5893 break;
5894 case TARGET_NR_readv:
5895 {
5896 int count = arg3;
5897 struct iovec *vec;
5898
5899 vec = alloca(count * sizeof(struct iovec));
5900 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
5901 goto efault;
5902 ret = get_errno(readv(arg1, vec, count));
5903 unlock_iovec(vec, arg2, count, 1);
5904 }
5905 break;
5906 case TARGET_NR_writev:
5907 {
5908 int count = arg3;
5909 struct iovec *vec;
5910
5911 vec = alloca(count * sizeof(struct iovec));
5912 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
5913 goto efault;
5914 ret = get_errno(writev(arg1, vec, count));
5915 unlock_iovec(vec, arg2, count, 0);
5916 }
5917 break;
5918 case TARGET_NR_getsid:
5919 ret = get_errno(getsid(arg1));
5920 break;
5921 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
5922 case TARGET_NR_fdatasync:
5923 ret = get_errno(fdatasync(arg1));
5924 break;
5925 #endif
5926 case TARGET_NR__sysctl:
5927 /* We don't implement this, but ENOTDIR is always a safe
5928 return value. */
5929 ret = -TARGET_ENOTDIR;
5930 break;
5931 case TARGET_NR_sched_setparam:
5932 {
5933 struct sched_param *target_schp;
5934 struct sched_param schp;
5935
5936 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
5937 goto efault;
5938 schp.sched_priority = tswap32(target_schp->sched_priority);
5939 unlock_user_struct(target_schp, arg2, 0);
5940 ret = get_errno(sched_setparam(arg1, &schp));
5941 }
5942 break;
5943 case TARGET_NR_sched_getparam:
5944 {
5945 struct sched_param *target_schp;
5946 struct sched_param schp;
5947 ret = get_errno(sched_getparam(arg1, &schp));
5948 if (!is_error(ret)) {
5949 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
5950 goto efault;
5951 target_schp->sched_priority = tswap32(schp.sched_priority);
5952 unlock_user_struct(target_schp, arg2, 1);
5953 }
5954 }
5955 break;
5956 case TARGET_NR_sched_setscheduler:
5957 {
5958 struct sched_param *target_schp;
5959 struct sched_param schp;
5960 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
5961 goto efault;
5962 schp.sched_priority = tswap32(target_schp->sched_priority);
5963 unlock_user_struct(target_schp, arg3, 0);
5964 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
5965 }
5966 break;
5967 case TARGET_NR_sched_getscheduler:
5968 ret = get_errno(sched_getscheduler(arg1));
5969 break;
5970 case TARGET_NR_sched_yield:
5971 ret = get_errno(sched_yield());
5972 break;
5973 case TARGET_NR_sched_get_priority_max:
5974 ret = get_errno(sched_get_priority_max(arg1));
5975 break;
5976 case TARGET_NR_sched_get_priority_min:
5977 ret = get_errno(sched_get_priority_min(arg1));
5978 break;
5979 case TARGET_NR_sched_rr_get_interval:
5980 {
5981 struct timespec ts;
5982 ret = get_errno(sched_rr_get_interval(arg1, &ts));
5983 if (!is_error(ret)) {
5984 host_to_target_timespec(arg2, &ts);
5985 }
5986 }
5987 break;
5988 case TARGET_NR_nanosleep:
5989 {
5990 struct timespec req, rem;
5991 target_to_host_timespec(&req, arg1);
5992 ret = get_errno(nanosleep(&req, &rem));
5993 if (is_error(ret) && arg2) {
5994 host_to_target_timespec(arg2, &rem);
5995 }
5996 }
5997 break;
5998 #ifdef TARGET_NR_query_module
5999 case TARGET_NR_query_module:
6000 goto unimplemented;
6001 #endif
6002 #ifdef TARGET_NR_nfsservctl
6003 case TARGET_NR_nfsservctl:
6004 goto unimplemented;
6005 #endif
6006 case TARGET_NR_prctl:
6007 switch (arg1)
6008 {
6009 case PR_GET_PDEATHSIG:
6010 {
6011 int deathsig;
6012 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6013 if (!is_error(ret) && arg2
6014 && put_user_ual(deathsig, arg2))
6015 goto efault;
6016 }
6017 break;
6018 default:
6019 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6020 break;
6021 }
6022 break;
6023 #ifdef TARGET_NR_arch_prctl
6024 case TARGET_NR_arch_prctl:
6025 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6026 ret = do_arch_prctl(cpu_env, arg1, arg2);
6027 break;
6028 #else
6029 goto unimplemented;
6030 #endif
6031 #endif
6032 #ifdef TARGET_NR_pread
6033 case TARGET_NR_pread:
6034 #ifdef TARGET_ARM
6035 if (((CPUARMState *)cpu_env)->eabi)
6036 arg4 = arg5;
6037 #endif
6038 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6039 goto efault;
6040 ret = get_errno(pread(arg1, p, arg3, arg4));
6041 unlock_user(p, arg2, ret);
6042 break;
6043 case TARGET_NR_pwrite:
6044 #ifdef TARGET_ARM
6045 if (((CPUARMState *)cpu_env)->eabi)
6046 arg4 = arg5;
6047 #endif
6048 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6049 goto efault;
6050 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6051 unlock_user(p, arg2, 0);
6052 break;
6053 #endif
6054 #ifdef TARGET_NR_pread64
6055 case TARGET_NR_pread64:
6056 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6057 goto efault;
6058 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6059 unlock_user(p, arg2, ret);
6060 break;
6061 case TARGET_NR_pwrite64:
6062 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6063 goto efault;
6064 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6065 unlock_user(p, arg2, 0);
6066 break;
6067 #endif
6068 case TARGET_NR_getcwd:
6069 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6070 goto efault;
6071 ret = get_errno(sys_getcwd1(p, arg2));
6072 unlock_user(p, arg1, ret);
6073 break;
6074 case TARGET_NR_capget:
6075 goto unimplemented;
6076 case TARGET_NR_capset:
6077 goto unimplemented;
6078 case TARGET_NR_sigaltstack:
6079 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6080 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA)
6081 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6082 break;
6083 #else
6084 goto unimplemented;
6085 #endif
6086 case TARGET_NR_sendfile:
6087 goto unimplemented;
6088 #ifdef TARGET_NR_getpmsg
6089 case TARGET_NR_getpmsg:
6090 goto unimplemented;
6091 #endif
6092 #ifdef TARGET_NR_putpmsg
6093 case TARGET_NR_putpmsg:
6094 goto unimplemented;
6095 #endif
6096 #ifdef TARGET_NR_vfork
6097 case TARGET_NR_vfork:
6098 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6099 0, 0, 0, 0));
6100 break;
6101 #endif
6102 #ifdef TARGET_NR_ugetrlimit
6103 case TARGET_NR_ugetrlimit:
6104 {
6105 struct rlimit rlim;
6106 ret = get_errno(getrlimit(arg1, &rlim));
6107 if (!is_error(ret)) {
6108 struct target_rlimit *target_rlim;
6109 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6110 goto efault;
6111 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
6112 target_rlim->rlim_max = tswapl(rlim.rlim_max);
6113 unlock_user_struct(target_rlim, arg2, 1);
6114 }
6115 break;
6116 }
6117 #endif
6118 #ifdef TARGET_NR_truncate64
6119 case TARGET_NR_truncate64:
6120 if (!(p = lock_user_string(arg1)))
6121 goto efault;
6122 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6123 unlock_user(p, arg1, 0);
6124 break;
6125 #endif
6126 #ifdef TARGET_NR_ftruncate64
6127 case TARGET_NR_ftruncate64:
6128 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6129 break;
6130 #endif
6131 #ifdef TARGET_NR_stat64
6132 case TARGET_NR_stat64:
6133 if (!(p = lock_user_string(arg1)))
6134 goto efault;
6135 ret = get_errno(stat(path(p), &st));
6136 unlock_user(p, arg1, 0);
6137 if (!is_error(ret))
6138 ret = host_to_target_stat64(cpu_env, arg2, &st);
6139 break;
6140 #endif
6141 #ifdef TARGET_NR_lstat64
6142 case TARGET_NR_lstat64:
6143 if (!(p = lock_user_string(arg1)))
6144 goto efault;
6145 ret = get_errno(lstat(path(p), &st));
6146 unlock_user(p, arg1, 0);
6147 if (!is_error(ret))
6148 ret = host_to_target_stat64(cpu_env, arg2, &st);
6149 break;
6150 #endif
6151 #ifdef TARGET_NR_fstat64
6152 case TARGET_NR_fstat64:
6153 ret = get_errno(fstat(arg1, &st));
6154 if (!is_error(ret))
6155 ret = host_to_target_stat64(cpu_env, arg2, &st);
6156 break;
6157 #endif
6158 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6159 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6160 #ifdef TARGET_NR_fstatat64
6161 case TARGET_NR_fstatat64:
6162 #endif
6163 #ifdef TARGET_NR_newfstatat
6164 case TARGET_NR_newfstatat:
6165 #endif
6166 if (!(p = lock_user_string(arg2)))
6167 goto efault;
6168 #ifdef __NR_fstatat64
6169 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6170 #else
6171 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6172 #endif
6173 if (!is_error(ret))
6174 ret = host_to_target_stat64(cpu_env, arg3, &st);
6175 break;
6176 #endif
6177 #ifdef USE_UID16
6178 case TARGET_NR_lchown:
6179 if (!(p = lock_user_string(arg1)))
6180 goto efault;
6181 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6182 unlock_user(p, arg1, 0);
6183 break;
6184 case TARGET_NR_getuid:
6185 ret = get_errno(high2lowuid(getuid()));
6186 break;
6187 case TARGET_NR_getgid:
6188 ret = get_errno(high2lowgid(getgid()));
6189 break;
6190 case TARGET_NR_geteuid:
6191 ret = get_errno(high2lowuid(geteuid()));
6192 break;
6193 case TARGET_NR_getegid:
6194 ret = get_errno(high2lowgid(getegid()));
6195 break;
6196 case TARGET_NR_setreuid:
6197 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6198 break;
6199 case TARGET_NR_setregid:
6200 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6201 break;
6202 case TARGET_NR_getgroups:
6203 {
6204 int gidsetsize = arg1;
6205 uint16_t *target_grouplist;
6206 gid_t *grouplist;
6207 int i;
6208
6209 grouplist = alloca(gidsetsize * sizeof(gid_t));
6210 ret = get_errno(getgroups(gidsetsize, grouplist));
6211 if (gidsetsize == 0)
6212 break;
6213 if (!is_error(ret)) {
6214 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6215 if (!target_grouplist)
6216 goto efault;
6217 for(i = 0;i < ret; i++)
6218 target_grouplist[i] = tswap16(grouplist[i]);
6219 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6220 }
6221 }
6222 break;
6223 case TARGET_NR_setgroups:
6224 {
6225 int gidsetsize = arg1;
6226 uint16_t *target_grouplist;
6227 gid_t *grouplist;
6228 int i;
6229
6230 grouplist = alloca(gidsetsize * sizeof(gid_t));
6231 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6232 if (!target_grouplist) {
6233 ret = -TARGET_EFAULT;
6234 goto fail;
6235 }
6236 for(i = 0;i < gidsetsize; i++)
6237 grouplist[i] = tswap16(target_grouplist[i]);
6238 unlock_user(target_grouplist, arg2, 0);
6239 ret = get_errno(setgroups(gidsetsize, grouplist));
6240 }
6241 break;
6242 case TARGET_NR_fchown:
6243 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6244 break;
6245 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6246 case TARGET_NR_fchownat:
6247 if (!(p = lock_user_string(arg2)))
6248 goto efault;
6249 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6250 unlock_user(p, arg2, 0);
6251 break;
6252 #endif
6253 #ifdef TARGET_NR_setresuid
6254 case TARGET_NR_setresuid:
6255 ret = get_errno(setresuid(low2highuid(arg1),
6256 low2highuid(arg2),
6257 low2highuid(arg3)));
6258 break;
6259 #endif
6260 #ifdef TARGET_NR_getresuid
6261 case TARGET_NR_getresuid:
6262 {
6263 uid_t ruid, euid, suid;
6264 ret = get_errno(getresuid(&ruid, &euid, &suid));
6265 if (!is_error(ret)) {
6266 if (put_user_u16(high2lowuid(ruid), arg1)
6267 || put_user_u16(high2lowuid(euid), arg2)
6268 || put_user_u16(high2lowuid(suid), arg3))
6269 goto efault;
6270 }
6271 }
6272 break;
6273 #endif
6274 #ifdef TARGET_NR_getresgid
6275 case TARGET_NR_setresgid:
6276 ret = get_errno(setresgid(low2highgid(arg1),
6277 low2highgid(arg2),
6278 low2highgid(arg3)));
6279 break;
6280 #endif
6281 #ifdef TARGET_NR_getresgid
6282 case TARGET_NR_getresgid:
6283 {
6284 gid_t rgid, egid, sgid;
6285 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6286 if (!is_error(ret)) {
6287 if (put_user_u16(high2lowgid(rgid), arg1)
6288 || put_user_u16(high2lowgid(egid), arg2)
6289 || put_user_u16(high2lowgid(sgid), arg3))
6290 goto efault;
6291 }
6292 }
6293 break;
6294 #endif
6295 case TARGET_NR_chown:
6296 if (!(p = lock_user_string(arg1)))
6297 goto efault;
6298 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6299 unlock_user(p, arg1, 0);
6300 break;
6301 case TARGET_NR_setuid:
6302 ret = get_errno(setuid(low2highuid(arg1)));
6303 break;
6304 case TARGET_NR_setgid:
6305 ret = get_errno(setgid(low2highgid(arg1)));
6306 break;
6307 case TARGET_NR_setfsuid:
6308 ret = get_errno(setfsuid(arg1));
6309 break;
6310 case TARGET_NR_setfsgid:
6311 ret = get_errno(setfsgid(arg1));
6312 break;
6313 #endif /* USE_UID16 */
6314
6315 #ifdef TARGET_NR_lchown32
6316 case TARGET_NR_lchown32:
6317 if (!(p = lock_user_string(arg1)))
6318 goto efault;
6319 ret = get_errno(lchown(p, arg2, arg3));
6320 unlock_user(p, arg1, 0);
6321 break;
6322 #endif
6323 #ifdef TARGET_NR_getuid32
6324 case TARGET_NR_getuid32:
6325 ret = get_errno(getuid());
6326 break;
6327 #endif
6328
6329 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6330 /* Alpha specific */
6331 case TARGET_NR_getxuid:
6332 {
6333 uid_t euid;
6334 euid=geteuid();
6335 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6336 }
6337 ret = get_errno(getuid());
6338 break;
6339 #endif
6340 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6341 /* Alpha specific */
6342 case TARGET_NR_getxgid:
6343 {
6344 uid_t egid;
6345 egid=getegid();
6346 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6347 }
6348 ret = get_errno(getgid());
6349 break;
6350 #endif
6351
6352 #ifdef TARGET_NR_getgid32
6353 case TARGET_NR_getgid32:
6354 ret = get_errno(getgid());
6355 break;
6356 #endif
6357 #ifdef TARGET_NR_geteuid32
6358 case TARGET_NR_geteuid32:
6359 ret = get_errno(geteuid());
6360 break;
6361 #endif
6362 #ifdef TARGET_NR_getegid32
6363 case TARGET_NR_getegid32:
6364 ret = get_errno(getegid());
6365 break;
6366 #endif
6367 #ifdef TARGET_NR_setreuid32
6368 case TARGET_NR_setreuid32:
6369 ret = get_errno(setreuid(arg1, arg2));
6370 break;
6371 #endif
6372 #ifdef TARGET_NR_setregid32
6373 case TARGET_NR_setregid32:
6374 ret = get_errno(setregid(arg1, arg2));
6375 break;
6376 #endif
6377 #ifdef TARGET_NR_getgroups32
6378 case TARGET_NR_getgroups32:
6379 {
6380 int gidsetsize = arg1;
6381 uint32_t *target_grouplist;
6382 gid_t *grouplist;
6383 int i;
6384
6385 grouplist = alloca(gidsetsize * sizeof(gid_t));
6386 ret = get_errno(getgroups(gidsetsize, grouplist));
6387 if (gidsetsize == 0)
6388 break;
6389 if (!is_error(ret)) {
6390 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
6391 if (!target_grouplist) {
6392 ret = -TARGET_EFAULT;
6393 goto fail;
6394 }
6395 for(i = 0;i < ret; i++)
6396 target_grouplist[i] = tswap32(grouplist[i]);
6397 unlock_user(target_grouplist, arg2, gidsetsize * 4);
6398 }
6399 }
6400 break;
6401 #endif
6402 #ifdef TARGET_NR_setgroups32
6403 case TARGET_NR_setgroups32:
6404 {
6405 int gidsetsize = arg1;
6406 uint32_t *target_grouplist;
6407 gid_t *grouplist;
6408 int i;
6409
6410 grouplist = alloca(gidsetsize * sizeof(gid_t));
6411 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
6412 if (!target_grouplist) {
6413 ret = -TARGET_EFAULT;
6414 goto fail;
6415 }
6416 for(i = 0;i < gidsetsize; i++)
6417 grouplist[i] = tswap32(target_grouplist[i]);
6418 unlock_user(target_grouplist, arg2, 0);
6419 ret = get_errno(setgroups(gidsetsize, grouplist));
6420 }
6421 break;
6422 #endif
6423 #ifdef TARGET_NR_fchown32
6424 case TARGET_NR_fchown32:
6425 ret = get_errno(fchown(arg1, arg2, arg3));
6426 break;
6427 #endif
6428 #ifdef TARGET_NR_setresuid32
6429 case TARGET_NR_setresuid32:
6430 ret = get_errno(setresuid(arg1, arg2, arg3));
6431 break;
6432 #endif
6433 #ifdef TARGET_NR_getresuid32
6434 case TARGET_NR_getresuid32:
6435 {
6436 uid_t ruid, euid, suid;
6437 ret = get_errno(getresuid(&ruid, &euid, &suid));
6438 if (!is_error(ret)) {
6439 if (put_user_u32(ruid, arg1)
6440 || put_user_u32(euid, arg2)
6441 || put_user_u32(suid, arg3))
6442 goto efault;
6443 }
6444 }
6445 break;
6446 #endif
6447 #ifdef TARGET_NR_setresgid32
6448 case TARGET_NR_setresgid32:
6449 ret = get_errno(setresgid(arg1, arg2, arg3));
6450 break;
6451 #endif
6452 #ifdef TARGET_NR_getresgid32
6453 case TARGET_NR_getresgid32:
6454 {
6455 gid_t rgid, egid, sgid;
6456 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6457 if (!is_error(ret)) {
6458 if (put_user_u32(rgid, arg1)
6459 || put_user_u32(egid, arg2)
6460 || put_user_u32(sgid, arg3))
6461 goto efault;
6462 }
6463 }
6464 break;
6465 #endif
6466 #ifdef TARGET_NR_chown32
6467 case TARGET_NR_chown32:
6468 if (!(p = lock_user_string(arg1)))
6469 goto efault;
6470 ret = get_errno(chown(p, arg2, arg3));
6471 unlock_user(p, arg1, 0);
6472 break;
6473 #endif
6474 #ifdef TARGET_NR_setuid32
6475 case TARGET_NR_setuid32:
6476 ret = get_errno(setuid(arg1));
6477 break;
6478 #endif
6479 #ifdef TARGET_NR_setgid32
6480 case TARGET_NR_setgid32:
6481 ret = get_errno(setgid(arg1));
6482 break;
6483 #endif
6484 #ifdef TARGET_NR_setfsuid32
6485 case TARGET_NR_setfsuid32:
6486 ret = get_errno(setfsuid(arg1));
6487 break;
6488 #endif
6489 #ifdef TARGET_NR_setfsgid32
6490 case TARGET_NR_setfsgid32:
6491 ret = get_errno(setfsgid(arg1));
6492 break;
6493 #endif
6494
6495 case TARGET_NR_pivot_root:
6496 goto unimplemented;
6497 #ifdef TARGET_NR_mincore
6498 case TARGET_NR_mincore:
6499 {
6500 void *a;
6501 ret = -TARGET_EFAULT;
6502 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
6503 goto efault;
6504 if (!(p = lock_user_string(arg3)))
6505 goto mincore_fail;
6506 ret = get_errno(mincore(a, arg2, p));
6507 unlock_user(p, arg3, ret);
6508 mincore_fail:
6509 unlock_user(a, arg1, 0);
6510 }
6511 break;
6512 #endif
6513 #ifdef TARGET_NR_arm_fadvise64_64
6514 case TARGET_NR_arm_fadvise64_64:
6515 {
6516 /*
6517 * arm_fadvise64_64 looks like fadvise64_64 but
6518 * with different argument order
6519 */
6520 abi_long temp;
6521 temp = arg3;
6522 arg3 = arg4;
6523 arg4 = temp;
6524 }
6525 #endif
6526 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64)
6527 #ifdef TARGET_NR_fadvise64_64
6528 case TARGET_NR_fadvise64_64:
6529 #endif
6530 /* This is a hint, so ignoring and returning success is ok. */
6531 ret = get_errno(0);
6532 break;
6533 #endif
6534 #ifdef TARGET_NR_madvise
6535 case TARGET_NR_madvise:
6536 /* A straight passthrough may not be safe because qemu sometimes
6537 turns private flie-backed mappings into anonymous mappings.
6538 This will break MADV_DONTNEED.
6539 This is a hint, so ignoring and returning success is ok. */
6540 ret = get_errno(0);
6541 break;
6542 #endif
6543 #if TARGET_ABI_BITS == 32
6544 case TARGET_NR_fcntl64:
6545 {
6546 int cmd;
6547 struct flock64 fl;
6548 struct target_flock64 *target_fl;
6549 #ifdef TARGET_ARM
6550 struct target_eabi_flock64 *target_efl;
6551 #endif
6552
6553 cmd = target_to_host_fcntl_cmd(arg2);
6554 if (cmd == -TARGET_EINVAL)
6555 return cmd;
6556
6557 switch(arg2) {
6558 case TARGET_F_GETLK64:
6559 #ifdef TARGET_ARM
6560 if (((CPUARMState *)cpu_env)->eabi) {
6561 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
6562 goto efault;
6563 fl.l_type = tswap16(target_efl->l_type);
6564 fl.l_whence = tswap16(target_efl->l_whence);
6565 fl.l_start = tswap64(target_efl->l_start);
6566 fl.l_len = tswap64(target_efl->l_len);
6567 fl.l_pid = tswapl(target_efl->l_pid);
6568 unlock_user_struct(target_efl, arg3, 0);
6569 } else
6570 #endif
6571 {
6572 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
6573 goto efault;
6574 fl.l_type = tswap16(target_fl->l_type);
6575 fl.l_whence = tswap16(target_fl->l_whence);
6576 fl.l_start = tswap64(target_fl->l_start);
6577 fl.l_len = tswap64(target_fl->l_len);
6578 fl.l_pid = tswapl(target_fl->l_pid);
6579 unlock_user_struct(target_fl, arg3, 0);
6580 }
6581 ret = get_errno(fcntl(arg1, cmd, &fl));
6582 if (ret == 0) {
6583 #ifdef TARGET_ARM
6584 if (((CPUARMState *)cpu_env)->eabi) {
6585 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
6586 goto efault;
6587 target_efl->l_type = tswap16(fl.l_type);
6588 target_efl->l_whence = tswap16(fl.l_whence);
6589 target_efl->l_start = tswap64(fl.l_start);
6590 target_efl->l_len = tswap64(fl.l_len);
6591 target_efl->l_pid = tswapl(fl.l_pid);
6592 unlock_user_struct(target_efl, arg3, 1);
6593 } else
6594 #endif
6595 {
6596 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
6597 goto efault;
6598 target_fl->l_type = tswap16(fl.l_type);
6599 target_fl->l_whence = tswap16(fl.l_whence);
6600 target_fl->l_start = tswap64(fl.l_start);
6601 target_fl->l_len = tswap64(fl.l_len);
6602 target_fl->l_pid = tswapl(fl.l_pid);
6603 unlock_user_struct(target_fl, arg3, 1);
6604 }
6605 }
6606 break;
6607
6608 case TARGET_F_SETLK64:
6609 case TARGET_F_SETLKW64:
6610 #ifdef TARGET_ARM
6611 if (((CPUARMState *)cpu_env)->eabi) {
6612 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
6613 goto efault;
6614 fl.l_type = tswap16(target_efl->l_type);
6615 fl.l_whence = tswap16(target_efl->l_whence);
6616 fl.l_start = tswap64(target_efl->l_start);
6617 fl.l_len = tswap64(target_efl->l_len);
6618 fl.l_pid = tswapl(target_efl->l_pid);
6619 unlock_user_struct(target_efl, arg3, 0);
6620 } else
6621 #endif
6622 {
6623 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
6624 goto efault;
6625 fl.l_type = tswap16(target_fl->l_type);
6626 fl.l_whence = tswap16(target_fl->l_whence);
6627 fl.l_start = tswap64(target_fl->l_start);
6628 fl.l_len = tswap64(target_fl->l_len);
6629 fl.l_pid = tswapl(target_fl->l_pid);
6630 unlock_user_struct(target_fl, arg3, 0);
6631 }
6632 ret = get_errno(fcntl(arg1, cmd, &fl));
6633 break;
6634 default:
6635 ret = do_fcntl(arg1, arg2, arg3);
6636 break;
6637 }
6638 break;
6639 }
6640 #endif
6641 #ifdef TARGET_NR_cacheflush
6642 case TARGET_NR_cacheflush:
6643 /* self-modifying code is handled automatically, so nothing needed */
6644 ret = 0;
6645 break;
6646 #endif
6647 #ifdef TARGET_NR_security
6648 case TARGET_NR_security:
6649 goto unimplemented;
6650 #endif
6651 #ifdef TARGET_NR_getpagesize
6652 case TARGET_NR_getpagesize:
6653 ret = TARGET_PAGE_SIZE;
6654 break;
6655 #endif
6656 case TARGET_NR_gettid:
6657 ret = get_errno(gettid());
6658 break;
6659 #ifdef TARGET_NR_readahead
6660 case TARGET_NR_readahead:
6661 #if TARGET_ABI_BITS == 32
6662 #ifdef TARGET_ARM
6663 if (((CPUARMState *)cpu_env)->eabi)
6664 {
6665 arg2 = arg3;
6666 arg3 = arg4;
6667 arg4 = arg5;
6668 }
6669 #endif
6670 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
6671 #else
6672 ret = get_errno(readahead(arg1, arg2, arg3));
6673 #endif
6674 break;
6675 #endif
6676 #ifdef TARGET_NR_setxattr
6677 case TARGET_NR_setxattr:
6678 case TARGET_NR_lsetxattr:
6679 case TARGET_NR_fsetxattr:
6680 case TARGET_NR_getxattr:
6681 case TARGET_NR_lgetxattr:
6682 case TARGET_NR_fgetxattr:
6683 case TARGET_NR_listxattr:
6684 case TARGET_NR_llistxattr:
6685 case TARGET_NR_flistxattr:
6686 case TARGET_NR_removexattr:
6687 case TARGET_NR_lremovexattr:
6688 case TARGET_NR_fremovexattr:
6689 ret = -TARGET_EOPNOTSUPP;
6690 break;
6691 #endif
6692 #ifdef TARGET_NR_set_thread_area
6693 case TARGET_NR_set_thread_area:
6694 #if defined(TARGET_MIPS)
6695 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
6696 ret = 0;
6697 break;
6698 #elif defined(TARGET_CRIS)
6699 if (arg1 & 0xff)
6700 ret = -TARGET_EINVAL;
6701 else {
6702 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
6703 ret = 0;
6704 }
6705 break;
6706 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
6707 ret = do_set_thread_area(cpu_env, arg1);
6708 break;
6709 #else
6710 goto unimplemented_nowarn;
6711 #endif
6712 #endif
6713 #ifdef TARGET_NR_get_thread_area
6714 case TARGET_NR_get_thread_area:
6715 #if defined(TARGET_I386) && defined(TARGET_ABI32)
6716 ret = do_get_thread_area(cpu_env, arg1);
6717 #else
6718 goto unimplemented_nowarn;
6719 #endif
6720 #endif
6721 #ifdef TARGET_NR_getdomainname
6722 case TARGET_NR_getdomainname:
6723 goto unimplemented_nowarn;
6724 #endif
6725
6726 #ifdef TARGET_NR_clock_gettime
6727 case TARGET_NR_clock_gettime:
6728 {
6729 struct timespec ts;
6730 ret = get_errno(clock_gettime(arg1, &ts));
6731 if (!is_error(ret)) {
6732 host_to_target_timespec(arg2, &ts);
6733 }
6734 break;
6735 }
6736 #endif
6737 #ifdef TARGET_NR_clock_getres
6738 case TARGET_NR_clock_getres:
6739 {
6740 struct timespec ts;
6741 ret = get_errno(clock_getres(arg1, &ts));
6742 if (!is_error(ret)) {
6743 host_to_target_timespec(arg2, &ts);
6744 }
6745 break;
6746 }
6747 #endif
6748 #ifdef TARGET_NR_clock_nanosleep
6749 case TARGET_NR_clock_nanosleep:
6750 {
6751 struct timespec ts;
6752 target_to_host_timespec(&ts, arg3);
6753 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
6754 if (arg4)
6755 host_to_target_timespec(arg4, &ts);
6756 break;
6757 }
6758 #endif
6759
6760 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
6761 case TARGET_NR_set_tid_address:
6762 ret = get_errno(set_tid_address((int *)g2h(arg1)));
6763 break;
6764 #endif
6765
6766 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
6767 case TARGET_NR_tkill:
6768 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
6769 break;
6770 #endif
6771
6772 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
6773 case TARGET_NR_tgkill:
6774 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
6775 target_to_host_signal(arg3)));
6776 break;
6777 #endif
6778
6779 #ifdef TARGET_NR_set_robust_list
6780 case TARGET_NR_set_robust_list:
6781 goto unimplemented_nowarn;
6782 #endif
6783
6784 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
6785 case TARGET_NR_utimensat:
6786 {
6787 struct timespec *tsp, ts[2];
6788 if (!arg3) {
6789 tsp = NULL;
6790 } else {
6791 target_to_host_timespec(ts, arg3);
6792 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
6793 tsp = ts;
6794 }
6795 if (!arg2)
6796 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
6797 else {
6798 if (!(p = lock_user_string(arg2))) {
6799 ret = -TARGET_EFAULT;
6800 goto fail;
6801 }
6802 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
6803 unlock_user(p, arg2, 0);
6804 }
6805 }
6806 break;
6807 #endif
6808 #if defined(USE_NPTL)
6809 case TARGET_NR_futex:
6810 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
6811 break;
6812 #endif
6813 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
6814 case TARGET_NR_inotify_init:
6815 ret = get_errno(sys_inotify_init());
6816 break;
6817 #endif
6818 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
6819 case TARGET_NR_inotify_add_watch:
6820 p = lock_user_string(arg2);
6821 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
6822 unlock_user(p, arg2, 0);
6823 break;
6824 #endif
6825 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
6826 case TARGET_NR_inotify_rm_watch:
6827 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
6828 break;
6829 #endif
6830
6831 #ifdef TARGET_NR_mq_open
6832 case TARGET_NR_mq_open:
6833 {
6834 struct mq_attr posix_mq_attr;
6835
6836 p = lock_user_string(arg1 - 1);
6837 if (arg4 != 0)
6838 copy_from_user_mq_attr (&posix_mq_attr, arg4);
6839 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
6840 unlock_user (p, arg1, 0);
6841 }
6842 break;
6843
6844 case TARGET_NR_mq_unlink:
6845 p = lock_user_string(arg1 - 1);
6846 ret = get_errno(mq_unlink(p));
6847 unlock_user (p, arg1, 0);
6848 break;
6849
6850 case TARGET_NR_mq_timedsend:
6851 {
6852 struct timespec ts;
6853
6854 p = lock_user (VERIFY_READ, arg2, arg3, 1);
6855 if (arg5 != 0) {
6856 target_to_host_timespec(&ts, arg5);
6857 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
6858 host_to_target_timespec(arg5, &ts);
6859 }
6860 else
6861 ret = get_errno(mq_send(arg1, p, arg3, arg4));
6862 unlock_user (p, arg2, arg3);
6863 }
6864 break;
6865
6866 case TARGET_NR_mq_timedreceive:
6867 {
6868 struct timespec ts;
6869 unsigned int prio;
6870
6871 p = lock_user (VERIFY_READ, arg2, arg3, 1);
6872 if (arg5 != 0) {
6873 target_to_host_timespec(&ts, arg5);
6874 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
6875 host_to_target_timespec(arg5, &ts);
6876 }
6877 else
6878 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
6879 unlock_user (p, arg2, arg3);
6880 if (arg4 != 0)
6881 put_user_u32(prio, arg4);
6882 }
6883 break;
6884
6885 /* Not implemented for now... */
6886 /* case TARGET_NR_mq_notify: */
6887 /* break; */
6888
6889 case TARGET_NR_mq_getsetattr:
6890 {
6891 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
6892 ret = 0;
6893 if (arg3 != 0) {
6894 ret = mq_getattr(arg1, &posix_mq_attr_out);
6895 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
6896 }
6897 if (arg2 != 0) {
6898 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
6899 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
6900 }
6901
6902 }
6903 break;
6904 #endif
6905
6906 #ifdef CONFIG_SPLICE
6907 #ifdef TARGET_NR_tee
6908 case TARGET_NR_tee:
6909 {
6910 ret = get_errno(tee(arg1,arg2,arg3,arg4));
6911 }
6912 break;
6913 #endif
6914 #ifdef TARGET_NR_splice
6915 case TARGET_NR_splice:
6916 {
6917 loff_t loff_in, loff_out;
6918 loff_t *ploff_in = NULL, *ploff_out = NULL;
6919 if(arg2) {
6920 get_user_u64(loff_in, arg2);
6921 ploff_in = &loff_in;
6922 }
6923 if(arg4) {
6924 get_user_u64(loff_out, arg2);
6925 ploff_out = &loff_out;
6926 }
6927 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
6928 }
6929 break;
6930 #endif
6931 #ifdef TARGET_NR_vmsplice
6932 case TARGET_NR_vmsplice:
6933 {
6934 int count = arg3;
6935 struct iovec *vec;
6936
6937 vec = alloca(count * sizeof(struct iovec));
6938 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6939 goto efault;
6940 ret = get_errno(vmsplice(arg1, vec, count, arg4));
6941 unlock_iovec(vec, arg2, count, 0);
6942 }
6943 break;
6944 #endif
6945 #endif /* CONFIG_SPLICE */
6946 default:
6947 unimplemented:
6948 gemu_log("qemu: Unsupported syscall: %d\n", num);
6949 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
6950 unimplemented_nowarn:
6951 #endif
6952 ret = -TARGET_ENOSYS;
6953 break;
6954 }
6955 fail:
6956 #ifdef DEBUG
6957 gemu_log(" = %ld\n", ret);
6958 #endif
6959 if(do_strace)
6960 print_syscall_ret(num, ret);
6961 return ret;
6962 efault:
6963 ret = -TARGET_EFAULT;
6964 goto fail;
6965 }
AMD IOMMU emulation for KVM