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Merge remote branch 'amit/for-anthony' into staging
[qemu.git] / linux-user / syscall.c
blob499c4d7d62efb3d0cddb3f8175b01da63d7ca95e
1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #define _ATFILE_SOURCE
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <elf.h>
25 #include <endian.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <time.h>
30 #include <limits.h>
31 #include <sys/types.h>
32 #include <sys/ipc.h>
33 #include <sys/msg.h>
34 #include <sys/wait.h>
35 #include <sys/time.h>
36 #include <sys/stat.h>
37 #include <sys/mount.h>
38 #include <sys/prctl.h>
39 #include <sys/resource.h>
40 #include <sys/mman.h>
41 #include <sys/swap.h>
42 #include <signal.h>
43 #include <sched.h>
44 #ifdef __ia64__
45 int __clone2(int (*fn)(void *), void *child_stack_base,
46 size_t stack_size, int flags, void *arg, ...);
47 #endif
48 #include <sys/socket.h>
49 #include <sys/un.h>
50 #include <sys/uio.h>
51 #include <sys/poll.h>
52 #include <sys/times.h>
53 #include <sys/shm.h>
54 #include <sys/sem.h>
55 #include <sys/statfs.h>
56 #include <utime.h>
57 #include <sys/sysinfo.h>
58 #include <sys/utsname.h>
59 //#include <sys/user.h>
60 #include <netinet/ip.h>
61 #include <netinet/tcp.h>
62 #include <qemu-common.h>
63 #ifdef TARGET_GPROF
64 #include <sys/gmon.h>
65 #endif
66 #ifdef CONFIG_EVENTFD
67 #include <sys/eventfd.h>
68 #endif
69
70 #define termios host_termios
71 #define winsize host_winsize
72 #define termio host_termio
73 #define sgttyb host_sgttyb /* same as target */
74 #define tchars host_tchars /* same as target */
75 #define ltchars host_ltchars /* same as target */
76
77 #include <linux/termios.h>
78 #include <linux/unistd.h>
79 #include <linux/utsname.h>
80 #include <linux/cdrom.h>
81 #include <linux/hdreg.h>
82 #include <linux/soundcard.h>
83 #include <linux/kd.h>
84 #include <linux/mtio.h>
85 #include <linux/fs.h>
86 #if defined(CONFIG_FIEMAP)
87 #include <linux/fiemap.h>
88 #endif
89 #include <linux/fb.h>
90 #include <linux/vt.h>
91 #include "linux_loop.h"
92 #include "cpu-uname.h"
93
94 #include "qemu.h"
95 #include "qemu-common.h"
96
97 #if defined(CONFIG_USE_NPTL)
98 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
99 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
100 #else
101 /* XXX: Hardcode the above values. */
102 #define CLONE_NPTL_FLAGS2 0
103 #endif
104
105 //#define DEBUG
106
107 //#include <linux/msdos_fs.h>
108 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
109 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
110
111
112 #undef _syscall0
113 #undef _syscall1
114 #undef _syscall2
115 #undef _syscall3
116 #undef _syscall4
117 #undef _syscall5
118 #undef _syscall6
119
120 #define _syscall0(type,name) \
121 static type name (void) \
122 { \
123 return syscall(__NR_##name); \
124 }
125
126 #define _syscall1(type,name,type1,arg1) \
127 static type name (type1 arg1) \
128 { \
129 return syscall(__NR_##name, arg1); \
130 }
131
132 #define _syscall2(type,name,type1,arg1,type2,arg2) \
133 static type name (type1 arg1,type2 arg2) \
134 { \
135 return syscall(__NR_##name, arg1, arg2); \
136 }
137
138 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
139 static type name (type1 arg1,type2 arg2,type3 arg3) \
140 { \
141 return syscall(__NR_##name, arg1, arg2, arg3); \
142 }
143
144 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
145 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
146 { \
147 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
148 }
149
150 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
151 type5,arg5) \
152 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
153 { \
154 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
155 }
156
157
158 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
159 type5,arg5,type6,arg6) \
160 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
161 type6 arg6) \
162 { \
163 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
164 }
165
166
167 #define __NR_sys_uname __NR_uname
168 #define __NR_sys_faccessat __NR_faccessat
169 #define __NR_sys_fchmodat __NR_fchmodat
170 #define __NR_sys_fchownat __NR_fchownat
171 #define __NR_sys_fstatat64 __NR_fstatat64
172 #define __NR_sys_futimesat __NR_futimesat
173 #define __NR_sys_getcwd1 __NR_getcwd
174 #define __NR_sys_getdents __NR_getdents
175 #define __NR_sys_getdents64 __NR_getdents64
176 #define __NR_sys_getpriority __NR_getpriority
177 #define __NR_sys_linkat __NR_linkat
178 #define __NR_sys_mkdirat __NR_mkdirat
179 #define __NR_sys_mknodat __NR_mknodat
180 #define __NR_sys_newfstatat __NR_newfstatat
181 #define __NR_sys_openat __NR_openat
182 #define __NR_sys_readlinkat __NR_readlinkat
183 #define __NR_sys_renameat __NR_renameat
184 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
185 #define __NR_sys_symlinkat __NR_symlinkat
186 #define __NR_sys_syslog __NR_syslog
187 #define __NR_sys_tgkill __NR_tgkill
188 #define __NR_sys_tkill __NR_tkill
189 #define __NR_sys_unlinkat __NR_unlinkat
190 #define __NR_sys_utimensat __NR_utimensat
191 #define __NR_sys_futex __NR_futex
192 #define __NR_sys_inotify_init __NR_inotify_init
193 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
194 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
195
196 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
197 #define __NR__llseek __NR_lseek
198 #endif
199
200 #ifdef __NR_gettid
201 _syscall0(int, gettid)
202 #else
203 /* This is a replacement for the host gettid() and must return a host
204 errno. */
205 static int gettid(void) {
206 return -ENOSYS;
207 }
208 #endif
209 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
210 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
211 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
212 #endif
213 _syscall2(int, sys_getpriority, int, which, int, who);
214 #if defined(TARGET_NR__llseek) && defined(__NR_llseek)
215 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
216 loff_t *, res, uint, wh);
217 #endif
218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
219 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
220 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
221 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
222 #endif
223 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
224 _syscall2(int,sys_tkill,int,tid,int,sig)
225 #endif
226 #ifdef __NR_exit_group
227 _syscall1(int,exit_group,int,error_code)
228 #endif
229 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
230 _syscall1(int,set_tid_address,int *,tidptr)
231 #endif
232 #if defined(CONFIG_USE_NPTL)
233 #if defined(TARGET_NR_futex) && defined(__NR_futex)
234 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
235 const struct timespec *,timeout,int *,uaddr2,int,val3)
236 #endif
237 #endif
238
239 static bitmask_transtbl fcntl_flags_tbl[] = {
240 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
241 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
242 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
243 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
244 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
245 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
246 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
247 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
248 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
249 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
250 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
251 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
252 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
253 #if defined(O_DIRECT)
254 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
255 #endif
256 { 0, 0, 0, 0 }
257 };
258
259 #define COPY_UTSNAME_FIELD(dest, src) \
260 do { \
261 /* __NEW_UTS_LEN doesn't include terminating null */ \
262 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
263 (dest)[__NEW_UTS_LEN] = '\0'; \
264 } while (0)
265
266 static int sys_uname(struct new_utsname *buf)
267 {
268 struct utsname uts_buf;
269
270 if (uname(&uts_buf) < 0)
271 return (-1);
272
273 /*
274 * Just in case these have some differences, we
275 * translate utsname to new_utsname (which is the
276 * struct linux kernel uses).
277 */
278
279 bzero(buf, sizeof (*buf));
280 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
281 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
282 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
283 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
284 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
285 #ifdef _GNU_SOURCE
286 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
287 #endif
288 return (0);
289
290 #undef COPY_UTSNAME_FIELD
291 }
292
293 static int sys_getcwd1(char *buf, size_t size)
294 {
295 if (getcwd(buf, size) == NULL) {
296 /* getcwd() sets errno */
297 return (-1);
298 }
299 return strlen(buf)+1;
300 }
301
302 #ifdef CONFIG_ATFILE
303 /*
304 * Host system seems to have atfile syscall stubs available. We
305 * now enable them one by one as specified by target syscall_nr.h.
306 */
307
308 #ifdef TARGET_NR_faccessat
309 static int sys_faccessat(int dirfd, const char *pathname, int mode)
310 {
311 return (faccessat(dirfd, pathname, mode, 0));
312 }
313 #endif
314 #ifdef TARGET_NR_fchmodat
315 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
316 {
317 return (fchmodat(dirfd, pathname, mode, 0));
318 }
319 #endif
320 #if defined(TARGET_NR_fchownat) && defined(USE_UID16)
321 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
322 gid_t group, int flags)
323 {
324 return (fchownat(dirfd, pathname, owner, group, flags));
325 }
326 #endif
327 #ifdef __NR_fstatat64
328 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
329 int flags)
330 {
331 return (fstatat(dirfd, pathname, buf, flags));
332 }
333 #endif
334 #ifdef __NR_newfstatat
335 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
336 int flags)
337 {
338 return (fstatat(dirfd, pathname, buf, flags));
339 }
340 #endif
341 #ifdef TARGET_NR_futimesat
342 static int sys_futimesat(int dirfd, const char *pathname,
343 const struct timeval times[2])
344 {
345 return (futimesat(dirfd, pathname, times));
346 }
347 #endif
348 #ifdef TARGET_NR_linkat
349 static int sys_linkat(int olddirfd, const char *oldpath,
350 int newdirfd, const char *newpath, int flags)
351 {
352 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
353 }
354 #endif
355 #ifdef TARGET_NR_mkdirat
356 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
357 {
358 return (mkdirat(dirfd, pathname, mode));
359 }
360 #endif
361 #ifdef TARGET_NR_mknodat
362 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
363 dev_t dev)
364 {
365 return (mknodat(dirfd, pathname, mode, dev));
366 }
367 #endif
368 #ifdef TARGET_NR_openat
369 static int sys_openat(int dirfd, const char *pathname, int flags, ...)
370 {
371 /*
372 * open(2) has extra parameter 'mode' when called with
373 * flag O_CREAT.
374 */
375 if ((flags & O_CREAT) != 0) {
376 va_list ap;
377 mode_t mode;
378
379 /*
380 * Get the 'mode' parameter and translate it to
381 * host bits.
382 */
383 va_start(ap, flags);
384 mode = va_arg(ap, mode_t);
385 mode = target_to_host_bitmask(mode, fcntl_flags_tbl);
386 va_end(ap);
387
388 return (openat(dirfd, pathname, flags, mode));
389 }
390 return (openat(dirfd, pathname, flags));
391 }
392 #endif
393 #ifdef TARGET_NR_readlinkat
394 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
395 {
396 return (readlinkat(dirfd, pathname, buf, bufsiz));
397 }
398 #endif
399 #ifdef TARGET_NR_renameat
400 static int sys_renameat(int olddirfd, const char *oldpath,
401 int newdirfd, const char *newpath)
402 {
403 return (renameat(olddirfd, oldpath, newdirfd, newpath));
404 }
405 #endif
406 #ifdef TARGET_NR_symlinkat
407 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
408 {
409 return (symlinkat(oldpath, newdirfd, newpath));
410 }
411 #endif
412 #ifdef TARGET_NR_unlinkat
413 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
414 {
415 return (unlinkat(dirfd, pathname, flags));
416 }
417 #endif
418 #else /* !CONFIG_ATFILE */
419
420 /*
421 * Try direct syscalls instead
422 */
423 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
424 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
425 #endif
426 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
427 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
428 #endif
429 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
430 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
431 uid_t,owner,gid_t,group,int,flags)
432 #endif
433 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
434 defined(__NR_fstatat64)
435 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
436 struct stat *,buf,int,flags)
437 #endif
438 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
439 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
440 const struct timeval *,times)
441 #endif
442 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
443 defined(__NR_newfstatat)
444 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
445 struct stat *,buf,int,flags)
446 #endif
447 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
448 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
449 int,newdirfd,const char *,newpath,int,flags)
450 #endif
451 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
452 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
453 #endif
454 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
455 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
456 mode_t,mode,dev_t,dev)
457 #endif
458 #if defined(TARGET_NR_openat) && defined(__NR_openat)
459 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
460 #endif
461 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
462 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
463 char *,buf,size_t,bufsize)
464 #endif
465 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
466 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
467 int,newdirfd,const char *,newpath)
468 #endif
469 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
470 _syscall3(int,sys_symlinkat,const char *,oldpath,
471 int,newdirfd,const char *,newpath)
472 #endif
473 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
474 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
475 #endif
476
477 #endif /* CONFIG_ATFILE */
478
479 #ifdef CONFIG_UTIMENSAT
480 static int sys_utimensat(int dirfd, const char *pathname,
481 const struct timespec times[2], int flags)
482 {
483 if (pathname == NULL)
484 return futimens(dirfd, times);
485 else
486 return utimensat(dirfd, pathname, times, flags);
487 }
488 #else
489 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
490 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
491 const struct timespec *,tsp,int,flags)
492 #endif
493 #endif /* CONFIG_UTIMENSAT */
494
495 #ifdef CONFIG_INOTIFY
496 #include <sys/inotify.h>
497
498 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
499 static int sys_inotify_init(void)
500 {
501 return (inotify_init());
502 }
503 #endif
504 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
505 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
506 {
507 return (inotify_add_watch(fd, pathname, mask));
508 }
509 #endif
510 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
511 static int sys_inotify_rm_watch(int fd, int32_t wd)
512 {
513 return (inotify_rm_watch(fd, wd));
514 }
515 #endif
516 #ifdef CONFIG_INOTIFY1
517 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
518 static int sys_inotify_init1(int flags)
519 {
520 return (inotify_init1(flags));
521 }
522 #endif
523 #endif
524 #else
525 /* Userspace can usually survive runtime without inotify */
526 #undef TARGET_NR_inotify_init
527 #undef TARGET_NR_inotify_init1
528 #undef TARGET_NR_inotify_add_watch
529 #undef TARGET_NR_inotify_rm_watch
530 #endif /* CONFIG_INOTIFY */
531
532
533 extern int personality(int);
534 extern int flock(int, int);
535 extern int setfsuid(int);
536 extern int setfsgid(int);
537 extern int setgroups(int, gid_t *);
538
539 #define ERRNO_TABLE_SIZE 1200
540
541 /* target_to_host_errno_table[] is initialized from
542 * host_to_target_errno_table[] in syscall_init(). */
543 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
544 };
545
546 /*
547 * This list is the union of errno values overridden in asm-<arch>/errno.h
548 * minus the errnos that are not actually generic to all archs.
549 */
550 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
551 [EIDRM] = TARGET_EIDRM,
552 [ECHRNG] = TARGET_ECHRNG,
553 [EL2NSYNC] = TARGET_EL2NSYNC,
554 [EL3HLT] = TARGET_EL3HLT,
555 [EL3RST] = TARGET_EL3RST,
556 [ELNRNG] = TARGET_ELNRNG,
557 [EUNATCH] = TARGET_EUNATCH,
558 [ENOCSI] = TARGET_ENOCSI,
559 [EL2HLT] = TARGET_EL2HLT,
560 [EDEADLK] = TARGET_EDEADLK,
561 [ENOLCK] = TARGET_ENOLCK,
562 [EBADE] = TARGET_EBADE,
563 [EBADR] = TARGET_EBADR,
564 [EXFULL] = TARGET_EXFULL,
565 [ENOANO] = TARGET_ENOANO,
566 [EBADRQC] = TARGET_EBADRQC,
567 [EBADSLT] = TARGET_EBADSLT,
568 [EBFONT] = TARGET_EBFONT,
569 [ENOSTR] = TARGET_ENOSTR,
570 [ENODATA] = TARGET_ENODATA,
571 [ETIME] = TARGET_ETIME,
572 [ENOSR] = TARGET_ENOSR,
573 [ENONET] = TARGET_ENONET,
574 [ENOPKG] = TARGET_ENOPKG,
575 [EREMOTE] = TARGET_EREMOTE,
576 [ENOLINK] = TARGET_ENOLINK,
577 [EADV] = TARGET_EADV,
578 [ESRMNT] = TARGET_ESRMNT,
579 [ECOMM] = TARGET_ECOMM,
580 [EPROTO] = TARGET_EPROTO,
581 [EDOTDOT] = TARGET_EDOTDOT,
582 [EMULTIHOP] = TARGET_EMULTIHOP,
583 [EBADMSG] = TARGET_EBADMSG,
584 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
585 [EOVERFLOW] = TARGET_EOVERFLOW,
586 [ENOTUNIQ] = TARGET_ENOTUNIQ,
587 [EBADFD] = TARGET_EBADFD,
588 [EREMCHG] = TARGET_EREMCHG,
589 [ELIBACC] = TARGET_ELIBACC,
590 [ELIBBAD] = TARGET_ELIBBAD,
591 [ELIBSCN] = TARGET_ELIBSCN,
592 [ELIBMAX] = TARGET_ELIBMAX,
593 [ELIBEXEC] = TARGET_ELIBEXEC,
594 [EILSEQ] = TARGET_EILSEQ,
595 [ENOSYS] = TARGET_ENOSYS,
596 [ELOOP] = TARGET_ELOOP,
597 [ERESTART] = TARGET_ERESTART,
598 [ESTRPIPE] = TARGET_ESTRPIPE,
599 [ENOTEMPTY] = TARGET_ENOTEMPTY,
600 [EUSERS] = TARGET_EUSERS,
601 [ENOTSOCK] = TARGET_ENOTSOCK,
602 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
603 [EMSGSIZE] = TARGET_EMSGSIZE,
604 [EPROTOTYPE] = TARGET_EPROTOTYPE,
605 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
606 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
607 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
608 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
609 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
610 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
611 [EADDRINUSE] = TARGET_EADDRINUSE,
612 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
613 [ENETDOWN] = TARGET_ENETDOWN,
614 [ENETUNREACH] = TARGET_ENETUNREACH,
615 [ENETRESET] = TARGET_ENETRESET,
616 [ECONNABORTED] = TARGET_ECONNABORTED,
617 [ECONNRESET] = TARGET_ECONNRESET,
618 [ENOBUFS] = TARGET_ENOBUFS,
619 [EISCONN] = TARGET_EISCONN,
620 [ENOTCONN] = TARGET_ENOTCONN,
621 [EUCLEAN] = TARGET_EUCLEAN,
622 [ENOTNAM] = TARGET_ENOTNAM,
623 [ENAVAIL] = TARGET_ENAVAIL,
624 [EISNAM] = TARGET_EISNAM,
625 [EREMOTEIO] = TARGET_EREMOTEIO,
626 [ESHUTDOWN] = TARGET_ESHUTDOWN,
627 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
628 [ETIMEDOUT] = TARGET_ETIMEDOUT,
629 [ECONNREFUSED] = TARGET_ECONNREFUSED,
630 [EHOSTDOWN] = TARGET_EHOSTDOWN,
631 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
632 [EALREADY] = TARGET_EALREADY,
633 [EINPROGRESS] = TARGET_EINPROGRESS,
634 [ESTALE] = TARGET_ESTALE,
635 [ECANCELED] = TARGET_ECANCELED,
636 [ENOMEDIUM] = TARGET_ENOMEDIUM,
637 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
638 #ifdef ENOKEY
639 [ENOKEY] = TARGET_ENOKEY,
640 #endif
641 #ifdef EKEYEXPIRED
642 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
643 #endif
644 #ifdef EKEYREVOKED
645 [EKEYREVOKED] = TARGET_EKEYREVOKED,
646 #endif
647 #ifdef EKEYREJECTED
648 [EKEYREJECTED] = TARGET_EKEYREJECTED,
649 #endif
650 #ifdef EOWNERDEAD
651 [EOWNERDEAD] = TARGET_EOWNERDEAD,
652 #endif
653 #ifdef ENOTRECOVERABLE
654 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
655 #endif
656 };
657
658 static inline int host_to_target_errno(int err)
659 {
660 if(host_to_target_errno_table[err])
661 return host_to_target_errno_table[err];
662 return err;
663 }
664
665 static inline int target_to_host_errno(int err)
666 {
667 if (target_to_host_errno_table[err])
668 return target_to_host_errno_table[err];
669 return err;
670 }
671
672 static inline abi_long get_errno(abi_long ret)
673 {
674 if (ret == -1)
675 return -host_to_target_errno(errno);
676 else
677 return ret;
678 }
679
680 static inline int is_error(abi_long ret)
681 {
682 return (abi_ulong)ret >= (abi_ulong)(-4096);
683 }
684
685 char *target_strerror(int err)
686 {
687 return strerror(target_to_host_errno(err));
688 }
689
690 static abi_ulong target_brk;
691 static abi_ulong target_original_brk;
692
693 void target_set_brk(abi_ulong new_brk)
694 {
695 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
696 }
697
698 /* do_brk() must return target values and target errnos. */
699 abi_long do_brk(abi_ulong new_brk)
700 {
701 abi_ulong brk_page;
702 abi_long mapped_addr;
703 int new_alloc_size;
704
705 if (!new_brk)
706 return target_brk;
707 if (new_brk < target_original_brk)
708 return target_brk;
709
710 brk_page = HOST_PAGE_ALIGN(target_brk);
711
712 /* If the new brk is less than this, set it and we're done... */
713 if (new_brk < brk_page) {
714 target_brk = new_brk;
715 return target_brk;
716 }
717
718 /* We need to allocate more memory after the brk... */
719 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
720 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
721 PROT_READ|PROT_WRITE,
722 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
723
724 #if defined(TARGET_ALPHA)
725 /* We (partially) emulate OSF/1 on Alpha, which requires we
726 return a proper errno, not an unchanged brk value. */
727 if (is_error(mapped_addr)) {
728 return -TARGET_ENOMEM;
729 }
730 #endif
731
732 if (!is_error(mapped_addr)) {
733 target_brk = new_brk;
734 }
735 return target_brk;
736 }
737
738 static inline abi_long copy_from_user_fdset(fd_set *fds,
739 abi_ulong target_fds_addr,
740 int n)
741 {
742 int i, nw, j, k;
743 abi_ulong b, *target_fds;
744
745 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
746 if (!(target_fds = lock_user(VERIFY_READ,
747 target_fds_addr,
748 sizeof(abi_ulong) * nw,
749 1)))
750 return -TARGET_EFAULT;
751
752 FD_ZERO(fds);
753 k = 0;
754 for (i = 0; i < nw; i++) {
755 /* grab the abi_ulong */
756 __get_user(b, &target_fds[i]);
757 for (j = 0; j < TARGET_ABI_BITS; j++) {
758 /* check the bit inside the abi_ulong */
759 if ((b >> j) & 1)
760 FD_SET(k, fds);
761 k++;
762 }
763 }
764
765 unlock_user(target_fds, target_fds_addr, 0);
766
767 return 0;
768 }
769
770 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
771 const fd_set *fds,
772 int n)
773 {
774 int i, nw, j, k;
775 abi_long v;
776 abi_ulong *target_fds;
777
778 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
779 if (!(target_fds = lock_user(VERIFY_WRITE,
780 target_fds_addr,
781 sizeof(abi_ulong) * nw,
782 0)))
783 return -TARGET_EFAULT;
784
785 k = 0;
786 for (i = 0; i < nw; i++) {
787 v = 0;
788 for (j = 0; j < TARGET_ABI_BITS; j++) {
789 v |= ((FD_ISSET(k, fds) != 0) << j);
790 k++;
791 }
792 __put_user(v, &target_fds[i]);
793 }
794
795 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
796
797 return 0;
798 }
799
800 #if defined(__alpha__)
801 #define HOST_HZ 1024
802 #else
803 #define HOST_HZ 100
804 #endif
805
806 static inline abi_long host_to_target_clock_t(long ticks)
807 {
808 #if HOST_HZ == TARGET_HZ
809 return ticks;
810 #else
811 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
812 #endif
813 }
814
815 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
816 const struct rusage *rusage)
817 {
818 struct target_rusage *target_rusage;
819
820 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
821 return -TARGET_EFAULT;
822 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
823 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
824 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
825 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
826 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
827 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
828 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
829 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
830 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
831 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
832 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
833 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
834 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
835 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
836 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
837 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
838 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
839 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
840 unlock_user_struct(target_rusage, target_addr, 1);
841
842 return 0;
843 }
844
845 static inline rlim_t target_to_host_rlim(target_ulong target_rlim)
846 {
847 if (target_rlim == TARGET_RLIM_INFINITY)
848 return RLIM_INFINITY;
849 else
850 return tswapl(target_rlim);
851 }
852
853 static inline target_ulong host_to_target_rlim(rlim_t rlim)
854 {
855 if (rlim == RLIM_INFINITY || rlim != (target_long)rlim)
856 return TARGET_RLIM_INFINITY;
857 else
858 return tswapl(rlim);
859 }
860
861 static inline abi_long copy_from_user_timeval(struct timeval *tv,
862 abi_ulong target_tv_addr)
863 {
864 struct target_timeval *target_tv;
865
866 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
867 return -TARGET_EFAULT;
868
869 __get_user(tv->tv_sec, &target_tv->tv_sec);
870 __get_user(tv->tv_usec, &target_tv->tv_usec);
871
872 unlock_user_struct(target_tv, target_tv_addr, 0);
873
874 return 0;
875 }
876
877 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
878 const struct timeval *tv)
879 {
880 struct target_timeval *target_tv;
881
882 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
883 return -TARGET_EFAULT;
884
885 __put_user(tv->tv_sec, &target_tv->tv_sec);
886 __put_user(tv->tv_usec, &target_tv->tv_usec);
887
888 unlock_user_struct(target_tv, target_tv_addr, 1);
889
890 return 0;
891 }
892
893 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
894 #include <mqueue.h>
895
896 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
897 abi_ulong target_mq_attr_addr)
898 {
899 struct target_mq_attr *target_mq_attr;
900
901 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
902 target_mq_attr_addr, 1))
903 return -TARGET_EFAULT;
904
905 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
906 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
907 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
908 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
909
910 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
911
912 return 0;
913 }
914
915 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
916 const struct mq_attr *attr)
917 {
918 struct target_mq_attr *target_mq_attr;
919
920 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
921 target_mq_attr_addr, 0))
922 return -TARGET_EFAULT;
923
924 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
925 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
926 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
927 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
928
929 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
930
931 return 0;
932 }
933 #endif
934
935 /* do_select() must return target values and target errnos. */
936 static abi_long do_select(int n,
937 abi_ulong rfd_addr, abi_ulong wfd_addr,
938 abi_ulong efd_addr, abi_ulong target_tv_addr)
939 {
940 fd_set rfds, wfds, efds;
941 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
942 struct timeval tv, *tv_ptr;
943 abi_long ret;
944
945 if (rfd_addr) {
946 if (copy_from_user_fdset(&rfds, rfd_addr, n))
947 return -TARGET_EFAULT;
948 rfds_ptr = &rfds;
949 } else {
950 rfds_ptr = NULL;
951 }
952 if (wfd_addr) {
953 if (copy_from_user_fdset(&wfds, wfd_addr, n))
954 return -TARGET_EFAULT;
955 wfds_ptr = &wfds;
956 } else {
957 wfds_ptr = NULL;
958 }
959 if (efd_addr) {
960 if (copy_from_user_fdset(&efds, efd_addr, n))
961 return -TARGET_EFAULT;
962 efds_ptr = &efds;
963 } else {
964 efds_ptr = NULL;
965 }
966
967 if (target_tv_addr) {
968 if (copy_from_user_timeval(&tv, target_tv_addr))
969 return -TARGET_EFAULT;
970 tv_ptr = &tv;
971 } else {
972 tv_ptr = NULL;
973 }
974
975 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
976
977 if (!is_error(ret)) {
978 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
979 return -TARGET_EFAULT;
980 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
981 return -TARGET_EFAULT;
982 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
983 return -TARGET_EFAULT;
984
985 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
986 return -TARGET_EFAULT;
987 }
988
989 return ret;
990 }
991
992 static abi_long do_pipe2(int host_pipe[], int flags)
993 {
994 #ifdef CONFIG_PIPE2
995 return pipe2(host_pipe, flags);
996 #else
997 return -ENOSYS;
998 #endif
999 }
1000
1001 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1002 int flags, int is_pipe2)
1003 {
1004 int host_pipe[2];
1005 abi_long ret;
1006 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1007
1008 if (is_error(ret))
1009 return get_errno(ret);
1010
1011 /* Several targets have special calling conventions for the original
1012 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1013 if (!is_pipe2) {
1014 #if defined(TARGET_ALPHA)
1015 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1016 return host_pipe[0];
1017 #elif defined(TARGET_MIPS)
1018 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1019 return host_pipe[0];
1020 #elif defined(TARGET_SH4)
1021 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1022 return host_pipe[0];
1023 #endif
1024 }
1025
1026 if (put_user_s32(host_pipe[0], pipedes)
1027 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1028 return -TARGET_EFAULT;
1029 return get_errno(ret);
1030 }
1031
1032 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1033 abi_ulong target_addr,
1034 socklen_t len)
1035 {
1036 struct target_ip_mreqn *target_smreqn;
1037
1038 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1039 if (!target_smreqn)
1040 return -TARGET_EFAULT;
1041 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1042 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1043 if (len == sizeof(struct target_ip_mreqn))
1044 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex);
1045 unlock_user(target_smreqn, target_addr, 0);
1046
1047 return 0;
1048 }
1049
1050 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1051 abi_ulong target_addr,
1052 socklen_t len)
1053 {
1054 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1055 sa_family_t sa_family;
1056 struct target_sockaddr *target_saddr;
1057
1058 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1059 if (!target_saddr)
1060 return -TARGET_EFAULT;
1061
1062 sa_family = tswap16(target_saddr->sa_family);
1063
1064 /* Oops. The caller might send a incomplete sun_path; sun_path
1065 * must be terminated by \0 (see the manual page), but
1066 * unfortunately it is quite common to specify sockaddr_un
1067 * length as "strlen(x->sun_path)" while it should be
1068 * "strlen(...) + 1". We'll fix that here if needed.
1069 * Linux kernel has a similar feature.
1070 */
1071
1072 if (sa_family == AF_UNIX) {
1073 if (len < unix_maxlen && len > 0) {
1074 char *cp = (char*)target_saddr;
1075
1076 if ( cp[len-1] && !cp[len] )
1077 len++;
1078 }
1079 if (len > unix_maxlen)
1080 len = unix_maxlen;
1081 }
1082
1083 memcpy(addr, target_saddr, len);
1084 addr->sa_family = sa_family;
1085 unlock_user(target_saddr, target_addr, 0);
1086
1087 return 0;
1088 }
1089
1090 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1091 struct sockaddr *addr,
1092 socklen_t len)
1093 {
1094 struct target_sockaddr *target_saddr;
1095
1096 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1097 if (!target_saddr)
1098 return -TARGET_EFAULT;
1099 memcpy(target_saddr, addr, len);
1100 target_saddr->sa_family = tswap16(addr->sa_family);
1101 unlock_user(target_saddr, target_addr, len);
1102
1103 return 0;
1104 }
1105
1106 /* ??? Should this also swap msgh->name? */
1107 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1108 struct target_msghdr *target_msgh)
1109 {
1110 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1111 abi_long msg_controllen;
1112 abi_ulong target_cmsg_addr;
1113 struct target_cmsghdr *target_cmsg;
1114 socklen_t space = 0;
1115
1116 msg_controllen = tswapl(target_msgh->msg_controllen);
1117 if (msg_controllen < sizeof (struct target_cmsghdr))
1118 goto the_end;
1119 target_cmsg_addr = tswapl(target_msgh->msg_control);
1120 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1121 if (!target_cmsg)
1122 return -TARGET_EFAULT;
1123
1124 while (cmsg && target_cmsg) {
1125 void *data = CMSG_DATA(cmsg);
1126 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1127
1128 int len = tswapl(target_cmsg->cmsg_len)
1129 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1130
1131 space += CMSG_SPACE(len);
1132 if (space > msgh->msg_controllen) {
1133 space -= CMSG_SPACE(len);
1134 gemu_log("Host cmsg overflow\n");
1135 break;
1136 }
1137
1138 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1139 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1140 cmsg->cmsg_len = CMSG_LEN(len);
1141
1142 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1143 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1144 memcpy(data, target_data, len);
1145 } else {
1146 int *fd = (int *)data;
1147 int *target_fd = (int *)target_data;
1148 int i, numfds = len / sizeof(int);
1149
1150 for (i = 0; i < numfds; i++)
1151 fd[i] = tswap32(target_fd[i]);
1152 }
1153
1154 cmsg = CMSG_NXTHDR(msgh, cmsg);
1155 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1156 }
1157 unlock_user(target_cmsg, target_cmsg_addr, 0);
1158 the_end:
1159 msgh->msg_controllen = space;
1160 return 0;
1161 }
1162
1163 /* ??? Should this also swap msgh->name? */
1164 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1165 struct msghdr *msgh)
1166 {
1167 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1168 abi_long msg_controllen;
1169 abi_ulong target_cmsg_addr;
1170 struct target_cmsghdr *target_cmsg;
1171 socklen_t space = 0;
1172
1173 msg_controllen = tswapl(target_msgh->msg_controllen);
1174 if (msg_controllen < sizeof (struct target_cmsghdr))
1175 goto the_end;
1176 target_cmsg_addr = tswapl(target_msgh->msg_control);
1177 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1178 if (!target_cmsg)
1179 return -TARGET_EFAULT;
1180
1181 while (cmsg && target_cmsg) {
1182 void *data = CMSG_DATA(cmsg);
1183 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1184
1185 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1186
1187 space += TARGET_CMSG_SPACE(len);
1188 if (space > msg_controllen) {
1189 space -= TARGET_CMSG_SPACE(len);
1190 gemu_log("Target cmsg overflow\n");
1191 break;
1192 }
1193
1194 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1195 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1196 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
1197
1198 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1199 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1200 memcpy(target_data, data, len);
1201 } else {
1202 int *fd = (int *)data;
1203 int *target_fd = (int *)target_data;
1204 int i, numfds = len / sizeof(int);
1205
1206 for (i = 0; i < numfds; i++)
1207 target_fd[i] = tswap32(fd[i]);
1208 }
1209
1210 cmsg = CMSG_NXTHDR(msgh, cmsg);
1211 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1212 }
1213 unlock_user(target_cmsg, target_cmsg_addr, space);
1214 the_end:
1215 target_msgh->msg_controllen = tswapl(space);
1216 return 0;
1217 }
1218
1219 /* do_setsockopt() Must return target values and target errnos. */
1220 static abi_long do_setsockopt(int sockfd, int level, int optname,
1221 abi_ulong optval_addr, socklen_t optlen)
1222 {
1223 abi_long ret;
1224 int val;
1225 struct ip_mreqn *ip_mreq;
1226 struct ip_mreq_source *ip_mreq_source;
1227
1228 switch(level) {
1229 case SOL_TCP:
1230 /* TCP options all take an 'int' value. */
1231 if (optlen < sizeof(uint32_t))
1232 return -TARGET_EINVAL;
1233
1234 if (get_user_u32(val, optval_addr))
1235 return -TARGET_EFAULT;
1236 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1237 break;
1238 case SOL_IP:
1239 switch(optname) {
1240 case IP_TOS:
1241 case IP_TTL:
1242 case IP_HDRINCL:
1243 case IP_ROUTER_ALERT:
1244 case IP_RECVOPTS:
1245 case IP_RETOPTS:
1246 case IP_PKTINFO:
1247 case IP_MTU_DISCOVER:
1248 case IP_RECVERR:
1249 case IP_RECVTOS:
1250 #ifdef IP_FREEBIND
1251 case IP_FREEBIND:
1252 #endif
1253 case IP_MULTICAST_TTL:
1254 case IP_MULTICAST_LOOP:
1255 val = 0;
1256 if (optlen >= sizeof(uint32_t)) {
1257 if (get_user_u32(val, optval_addr))
1258 return -TARGET_EFAULT;
1259 } else if (optlen >= 1) {
1260 if (get_user_u8(val, optval_addr))
1261 return -TARGET_EFAULT;
1262 }
1263 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1264 break;
1265 case IP_ADD_MEMBERSHIP:
1266 case IP_DROP_MEMBERSHIP:
1267 if (optlen < sizeof (struct target_ip_mreq) ||
1268 optlen > sizeof (struct target_ip_mreqn))
1269 return -TARGET_EINVAL;
1270
1271 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1272 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1273 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1274 break;
1275
1276 case IP_BLOCK_SOURCE:
1277 case IP_UNBLOCK_SOURCE:
1278 case IP_ADD_SOURCE_MEMBERSHIP:
1279 case IP_DROP_SOURCE_MEMBERSHIP:
1280 if (optlen != sizeof (struct target_ip_mreq_source))
1281 return -TARGET_EINVAL;
1282
1283 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1284 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1285 unlock_user (ip_mreq_source, optval_addr, 0);
1286 break;
1287
1288 default:
1289 goto unimplemented;
1290 }
1291 break;
1292 case TARGET_SOL_SOCKET:
1293 switch (optname) {
1294 /* Options with 'int' argument. */
1295 case TARGET_SO_DEBUG:
1296 optname = SO_DEBUG;
1297 break;
1298 case TARGET_SO_REUSEADDR:
1299 optname = SO_REUSEADDR;
1300 break;
1301 case TARGET_SO_TYPE:
1302 optname = SO_TYPE;
1303 break;
1304 case TARGET_SO_ERROR:
1305 optname = SO_ERROR;
1306 break;
1307 case TARGET_SO_DONTROUTE:
1308 optname = SO_DONTROUTE;
1309 break;
1310 case TARGET_SO_BROADCAST:
1311 optname = SO_BROADCAST;
1312 break;
1313 case TARGET_SO_SNDBUF:
1314 optname = SO_SNDBUF;
1315 break;
1316 case TARGET_SO_RCVBUF:
1317 optname = SO_RCVBUF;
1318 break;
1319 case TARGET_SO_KEEPALIVE:
1320 optname = SO_KEEPALIVE;
1321 break;
1322 case TARGET_SO_OOBINLINE:
1323 optname = SO_OOBINLINE;
1324 break;
1325 case TARGET_SO_NO_CHECK:
1326 optname = SO_NO_CHECK;
1327 break;
1328 case TARGET_SO_PRIORITY:
1329 optname = SO_PRIORITY;
1330 break;
1331 #ifdef SO_BSDCOMPAT
1332 case TARGET_SO_BSDCOMPAT:
1333 optname = SO_BSDCOMPAT;
1334 break;
1335 #endif
1336 case TARGET_SO_PASSCRED:
1337 optname = SO_PASSCRED;
1338 break;
1339 case TARGET_SO_TIMESTAMP:
1340 optname = SO_TIMESTAMP;
1341 break;
1342 case TARGET_SO_RCVLOWAT:
1343 optname = SO_RCVLOWAT;
1344 break;
1345 case TARGET_SO_RCVTIMEO:
1346 optname = SO_RCVTIMEO;
1347 break;
1348 case TARGET_SO_SNDTIMEO:
1349 optname = SO_SNDTIMEO;
1350 break;
1351 break;
1352 default:
1353 goto unimplemented;
1354 }
1355 if (optlen < sizeof(uint32_t))
1356 return -TARGET_EINVAL;
1357
1358 if (get_user_u32(val, optval_addr))
1359 return -TARGET_EFAULT;
1360 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1361 break;
1362 default:
1363 unimplemented:
1364 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
1365 ret = -TARGET_ENOPROTOOPT;
1366 }
1367 return ret;
1368 }
1369
1370 /* do_getsockopt() Must return target values and target errnos. */
1371 static abi_long do_getsockopt(int sockfd, int level, int optname,
1372 abi_ulong optval_addr, abi_ulong optlen)
1373 {
1374 abi_long ret;
1375 int len, val;
1376 socklen_t lv;
1377
1378 switch(level) {
1379 case TARGET_SOL_SOCKET:
1380 level = SOL_SOCKET;
1381 switch (optname) {
1382 /* These don't just return a single integer */
1383 case TARGET_SO_LINGER:
1384 case TARGET_SO_RCVTIMEO:
1385 case TARGET_SO_SNDTIMEO:
1386 case TARGET_SO_PEERCRED:
1387 case TARGET_SO_PEERNAME:
1388 goto unimplemented;
1389 /* Options with 'int' argument. */
1390 case TARGET_SO_DEBUG:
1391 optname = SO_DEBUG;
1392 goto int_case;
1393 case TARGET_SO_REUSEADDR:
1394 optname = SO_REUSEADDR;
1395 goto int_case;
1396 case TARGET_SO_TYPE:
1397 optname = SO_TYPE;
1398 goto int_case;
1399 case TARGET_SO_ERROR:
1400 optname = SO_ERROR;
1401 goto int_case;
1402 case TARGET_SO_DONTROUTE:
1403 optname = SO_DONTROUTE;
1404 goto int_case;
1405 case TARGET_SO_BROADCAST:
1406 optname = SO_BROADCAST;
1407 goto int_case;
1408 case TARGET_SO_SNDBUF:
1409 optname = SO_SNDBUF;
1410 goto int_case;
1411 case TARGET_SO_RCVBUF:
1412 optname = SO_RCVBUF;
1413 goto int_case;
1414 case TARGET_SO_KEEPALIVE:
1415 optname = SO_KEEPALIVE;
1416 goto int_case;
1417 case TARGET_SO_OOBINLINE:
1418 optname = SO_OOBINLINE;
1419 goto int_case;
1420 case TARGET_SO_NO_CHECK:
1421 optname = SO_NO_CHECK;
1422 goto int_case;
1423 case TARGET_SO_PRIORITY:
1424 optname = SO_PRIORITY;
1425 goto int_case;
1426 #ifdef SO_BSDCOMPAT
1427 case TARGET_SO_BSDCOMPAT:
1428 optname = SO_BSDCOMPAT;
1429 goto int_case;
1430 #endif
1431 case TARGET_SO_PASSCRED:
1432 optname = SO_PASSCRED;
1433 goto int_case;
1434 case TARGET_SO_TIMESTAMP:
1435 optname = SO_TIMESTAMP;
1436 goto int_case;
1437 case TARGET_SO_RCVLOWAT:
1438 optname = SO_RCVLOWAT;
1439 goto int_case;
1440 default:
1441 goto int_case;
1442 }
1443 break;
1444 case SOL_TCP:
1445 /* TCP options all take an 'int' value. */
1446 int_case:
1447 if (get_user_u32(len, optlen))
1448 return -TARGET_EFAULT;
1449 if (len < 0)
1450 return -TARGET_EINVAL;
1451 lv = sizeof(int);
1452 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1453 if (ret < 0)
1454 return ret;
1455 if (len > lv)
1456 len = lv;
1457 if (len == 4) {
1458 if (put_user_u32(val, optval_addr))
1459 return -TARGET_EFAULT;
1460 } else {
1461 if (put_user_u8(val, optval_addr))
1462 return -TARGET_EFAULT;
1463 }
1464 if (put_user_u32(len, optlen))
1465 return -TARGET_EFAULT;
1466 break;
1467 case SOL_IP:
1468 switch(optname) {
1469 case IP_TOS:
1470 case IP_TTL:
1471 case IP_HDRINCL:
1472 case IP_ROUTER_ALERT:
1473 case IP_RECVOPTS:
1474 case IP_RETOPTS:
1475 case IP_PKTINFO:
1476 case IP_MTU_DISCOVER:
1477 case IP_RECVERR:
1478 case IP_RECVTOS:
1479 #ifdef IP_FREEBIND
1480 case IP_FREEBIND:
1481 #endif
1482 case IP_MULTICAST_TTL:
1483 case IP_MULTICAST_LOOP:
1484 if (get_user_u32(len, optlen))
1485 return -TARGET_EFAULT;
1486 if (len < 0)
1487 return -TARGET_EINVAL;
1488 lv = sizeof(int);
1489 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1490 if (ret < 0)
1491 return ret;
1492 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1493 len = 1;
1494 if (put_user_u32(len, optlen)
1495 || put_user_u8(val, optval_addr))
1496 return -TARGET_EFAULT;
1497 } else {
1498 if (len > sizeof(int))
1499 len = sizeof(int);
1500 if (put_user_u32(len, optlen)
1501 || put_user_u32(val, optval_addr))
1502 return -TARGET_EFAULT;
1503 }
1504 break;
1505 default:
1506 ret = -TARGET_ENOPROTOOPT;
1507 break;
1508 }
1509 break;
1510 default:
1511 unimplemented:
1512 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1513 level, optname);
1514 ret = -TARGET_EOPNOTSUPP;
1515 break;
1516 }
1517 return ret;
1518 }
1519
1520 /* FIXME
1521 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1522 * other lock functions have a return code of 0 for failure.
1523 */
1524 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1525 int count, int copy)
1526 {
1527 struct target_iovec *target_vec;
1528 abi_ulong base;
1529 int i;
1530
1531 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1532 if (!target_vec)
1533 return -TARGET_EFAULT;
1534 for(i = 0;i < count; i++) {
1535 base = tswapl(target_vec[i].iov_base);
1536 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1537 if (vec[i].iov_len != 0) {
1538 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1539 /* Don't check lock_user return value. We must call writev even
1540 if a element has invalid base address. */
1541 } else {
1542 /* zero length pointer is ignored */
1543 vec[i].iov_base = NULL;
1544 }
1545 }
1546 unlock_user (target_vec, target_addr, 0);
1547 return 0;
1548 }
1549
1550 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1551 int count, int copy)
1552 {
1553 struct target_iovec *target_vec;
1554 abi_ulong base;
1555 int i;
1556
1557 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1558 if (!target_vec)
1559 return -TARGET_EFAULT;
1560 for(i = 0;i < count; i++) {
1561 if (target_vec[i].iov_base) {
1562 base = tswapl(target_vec[i].iov_base);
1563 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1564 }
1565 }
1566 unlock_user (target_vec, target_addr, 0);
1567
1568 return 0;
1569 }
1570
1571 /* do_socket() Must return target values and target errnos. */
1572 static abi_long do_socket(int domain, int type, int protocol)
1573 {
1574 #if defined(TARGET_MIPS)
1575 switch(type) {
1576 case TARGET_SOCK_DGRAM:
1577 type = SOCK_DGRAM;
1578 break;
1579 case TARGET_SOCK_STREAM:
1580 type = SOCK_STREAM;
1581 break;
1582 case TARGET_SOCK_RAW:
1583 type = SOCK_RAW;
1584 break;
1585 case TARGET_SOCK_RDM:
1586 type = SOCK_RDM;
1587 break;
1588 case TARGET_SOCK_SEQPACKET:
1589 type = SOCK_SEQPACKET;
1590 break;
1591 case TARGET_SOCK_PACKET:
1592 type = SOCK_PACKET;
1593 break;
1594 }
1595 #endif
1596 if (domain == PF_NETLINK)
1597 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1598 return get_errno(socket(domain, type, protocol));
1599 }
1600
1601 /* do_bind() Must return target values and target errnos. */
1602 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1603 socklen_t addrlen)
1604 {
1605 void *addr;
1606 abi_long ret;
1607
1608 if ((int)addrlen < 0) {
1609 return -TARGET_EINVAL;
1610 }
1611
1612 addr = alloca(addrlen+1);
1613
1614 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1615 if (ret)
1616 return ret;
1617
1618 return get_errno(bind(sockfd, addr, addrlen));
1619 }
1620
1621 /* do_connect() Must return target values and target errnos. */
1622 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1623 socklen_t addrlen)
1624 {
1625 void *addr;
1626 abi_long ret;
1627
1628 if ((int)addrlen < 0) {
1629 return -TARGET_EINVAL;
1630 }
1631
1632 addr = alloca(addrlen);
1633
1634 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1635 if (ret)
1636 return ret;
1637
1638 return get_errno(connect(sockfd, addr, addrlen));
1639 }
1640
1641 /* do_sendrecvmsg() Must return target values and target errnos. */
1642 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1643 int flags, int send)
1644 {
1645 abi_long ret, len;
1646 struct target_msghdr *msgp;
1647 struct msghdr msg;
1648 int count;
1649 struct iovec *vec;
1650 abi_ulong target_vec;
1651
1652 /* FIXME */
1653 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1654 msgp,
1655 target_msg,
1656 send ? 1 : 0))
1657 return -TARGET_EFAULT;
1658 if (msgp->msg_name) {
1659 msg.msg_namelen = tswap32(msgp->msg_namelen);
1660 msg.msg_name = alloca(msg.msg_namelen);
1661 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1662 msg.msg_namelen);
1663 if (ret) {
1664 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1665 return ret;
1666 }
1667 } else {
1668 msg.msg_name = NULL;
1669 msg.msg_namelen = 0;
1670 }
1671 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1672 msg.msg_control = alloca(msg.msg_controllen);
1673 msg.msg_flags = tswap32(msgp->msg_flags);
1674
1675 count = tswapl(msgp->msg_iovlen);
1676 vec = alloca(count * sizeof(struct iovec));
1677 target_vec = tswapl(msgp->msg_iov);
1678 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1679 msg.msg_iovlen = count;
1680 msg.msg_iov = vec;
1681
1682 if (send) {
1683 ret = target_to_host_cmsg(&msg, msgp);
1684 if (ret == 0)
1685 ret = get_errno(sendmsg(fd, &msg, flags));
1686 } else {
1687 ret = get_errno(recvmsg(fd, &msg, flags));
1688 if (!is_error(ret)) {
1689 len = ret;
1690 ret = host_to_target_cmsg(msgp, &msg);
1691 if (!is_error(ret))
1692 ret = len;
1693 }
1694 }
1695 unlock_iovec(vec, target_vec, count, !send);
1696 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1697 return ret;
1698 }
1699
1700 /* do_accept() Must return target values and target errnos. */
1701 static abi_long do_accept(int fd, abi_ulong target_addr,
1702 abi_ulong target_addrlen_addr)
1703 {
1704 socklen_t addrlen;
1705 void *addr;
1706 abi_long ret;
1707
1708 if (target_addr == 0)
1709 return get_errno(accept(fd, NULL, NULL));
1710
1711 /* linux returns EINVAL if addrlen pointer is invalid */
1712 if (get_user_u32(addrlen, target_addrlen_addr))
1713 return -TARGET_EINVAL;
1714
1715 if ((int)addrlen < 0) {
1716 return -TARGET_EINVAL;
1717 }
1718
1719 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1720 return -TARGET_EINVAL;
1721
1722 addr = alloca(addrlen);
1723
1724 ret = get_errno(accept(fd, addr, &addrlen));
1725 if (!is_error(ret)) {
1726 host_to_target_sockaddr(target_addr, addr, addrlen);
1727 if (put_user_u32(addrlen, target_addrlen_addr))
1728 ret = -TARGET_EFAULT;
1729 }
1730 return ret;
1731 }
1732
1733 /* do_getpeername() Must return target values and target errnos. */
1734 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1735 abi_ulong target_addrlen_addr)
1736 {
1737 socklen_t addrlen;
1738 void *addr;
1739 abi_long ret;
1740
1741 if (get_user_u32(addrlen, target_addrlen_addr))
1742 return -TARGET_EFAULT;
1743
1744 if ((int)addrlen < 0) {
1745 return -TARGET_EINVAL;
1746 }
1747
1748 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1749 return -TARGET_EFAULT;
1750
1751 addr = alloca(addrlen);
1752
1753 ret = get_errno(getpeername(fd, addr, &addrlen));
1754 if (!is_error(ret)) {
1755 host_to_target_sockaddr(target_addr, addr, addrlen);
1756 if (put_user_u32(addrlen, target_addrlen_addr))
1757 ret = -TARGET_EFAULT;
1758 }
1759 return ret;
1760 }
1761
1762 /* do_getsockname() Must return target values and target errnos. */
1763 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1764 abi_ulong target_addrlen_addr)
1765 {
1766 socklen_t addrlen;
1767 void *addr;
1768 abi_long ret;
1769
1770 if (get_user_u32(addrlen, target_addrlen_addr))
1771 return -TARGET_EFAULT;
1772
1773 if ((int)addrlen < 0) {
1774 return -TARGET_EINVAL;
1775 }
1776
1777 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1778 return -TARGET_EFAULT;
1779
1780 addr = alloca(addrlen);
1781
1782 ret = get_errno(getsockname(fd, addr, &addrlen));
1783 if (!is_error(ret)) {
1784 host_to_target_sockaddr(target_addr, addr, addrlen);
1785 if (put_user_u32(addrlen, target_addrlen_addr))
1786 ret = -TARGET_EFAULT;
1787 }
1788 return ret;
1789 }
1790
1791 /* do_socketpair() Must return target values and target errnos. */
1792 static abi_long do_socketpair(int domain, int type, int protocol,
1793 abi_ulong target_tab_addr)
1794 {
1795 int tab[2];
1796 abi_long ret;
1797
1798 ret = get_errno(socketpair(domain, type, protocol, tab));
1799 if (!is_error(ret)) {
1800 if (put_user_s32(tab[0], target_tab_addr)
1801 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1802 ret = -TARGET_EFAULT;
1803 }
1804 return ret;
1805 }
1806
1807 /* do_sendto() Must return target values and target errnos. */
1808 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1809 abi_ulong target_addr, socklen_t addrlen)
1810 {
1811 void *addr;
1812 void *host_msg;
1813 abi_long ret;
1814
1815 if ((int)addrlen < 0) {
1816 return -TARGET_EINVAL;
1817 }
1818
1819 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1820 if (!host_msg)
1821 return -TARGET_EFAULT;
1822 if (target_addr) {
1823 addr = alloca(addrlen);
1824 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1825 if (ret) {
1826 unlock_user(host_msg, msg, 0);
1827 return ret;
1828 }
1829 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1830 } else {
1831 ret = get_errno(send(fd, host_msg, len, flags));
1832 }
1833 unlock_user(host_msg, msg, 0);
1834 return ret;
1835 }
1836
1837 /* do_recvfrom() Must return target values and target errnos. */
1838 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1839 abi_ulong target_addr,
1840 abi_ulong target_addrlen)
1841 {
1842 socklen_t addrlen;
1843 void *addr;
1844 void *host_msg;
1845 abi_long ret;
1846
1847 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1848 if (!host_msg)
1849 return -TARGET_EFAULT;
1850 if (target_addr) {
1851 if (get_user_u32(addrlen, target_addrlen)) {
1852 ret = -TARGET_EFAULT;
1853 goto fail;
1854 }
1855 if ((int)addrlen < 0) {
1856 ret = -TARGET_EINVAL;
1857 goto fail;
1858 }
1859 addr = alloca(addrlen);
1860 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1861 } else {
1862 addr = NULL; /* To keep compiler quiet. */
1863 ret = get_errno(recv(fd, host_msg, len, flags));
1864 }
1865 if (!is_error(ret)) {
1866 if (target_addr) {
1867 host_to_target_sockaddr(target_addr, addr, addrlen);
1868 if (put_user_u32(addrlen, target_addrlen)) {
1869 ret = -TARGET_EFAULT;
1870 goto fail;
1871 }
1872 }
1873 unlock_user(host_msg, msg, len);
1874 } else {
1875 fail:
1876 unlock_user(host_msg, msg, 0);
1877 }
1878 return ret;
1879 }
1880
1881 #ifdef TARGET_NR_socketcall
1882 /* do_socketcall() Must return target values and target errnos. */
1883 static abi_long do_socketcall(int num, abi_ulong vptr)
1884 {
1885 abi_long ret;
1886 const int n = sizeof(abi_ulong);
1887
1888 switch(num) {
1889 case SOCKOP_socket:
1890 {
1891 abi_ulong domain, type, protocol;
1892
1893 if (get_user_ual(domain, vptr)
1894 || get_user_ual(type, vptr + n)
1895 || get_user_ual(protocol, vptr + 2 * n))
1896 return -TARGET_EFAULT;
1897
1898 ret = do_socket(domain, type, protocol);
1899 }
1900 break;
1901 case SOCKOP_bind:
1902 {
1903 abi_ulong sockfd;
1904 abi_ulong target_addr;
1905 socklen_t addrlen;
1906
1907 if (get_user_ual(sockfd, vptr)
1908 || get_user_ual(target_addr, vptr + n)
1909 || get_user_ual(addrlen, vptr + 2 * n))
1910 return -TARGET_EFAULT;
1911
1912 ret = do_bind(sockfd, target_addr, addrlen);
1913 }
1914 break;
1915 case SOCKOP_connect:
1916 {
1917 abi_ulong sockfd;
1918 abi_ulong target_addr;
1919 socklen_t addrlen;
1920
1921 if (get_user_ual(sockfd, vptr)
1922 || get_user_ual(target_addr, vptr + n)
1923 || get_user_ual(addrlen, vptr + 2 * n))
1924 return -TARGET_EFAULT;
1925
1926 ret = do_connect(sockfd, target_addr, addrlen);
1927 }
1928 break;
1929 case SOCKOP_listen:
1930 {
1931 abi_ulong sockfd, backlog;
1932
1933 if (get_user_ual(sockfd, vptr)
1934 || get_user_ual(backlog, vptr + n))
1935 return -TARGET_EFAULT;
1936
1937 ret = get_errno(listen(sockfd, backlog));
1938 }
1939 break;
1940 case SOCKOP_accept:
1941 {
1942 abi_ulong sockfd;
1943 abi_ulong target_addr, target_addrlen;
1944
1945 if (get_user_ual(sockfd, vptr)
1946 || get_user_ual(target_addr, vptr + n)
1947 || get_user_ual(target_addrlen, vptr + 2 * n))
1948 return -TARGET_EFAULT;
1949
1950 ret = do_accept(sockfd, target_addr, target_addrlen);
1951 }
1952 break;
1953 case SOCKOP_getsockname:
1954 {
1955 abi_ulong sockfd;
1956 abi_ulong target_addr, target_addrlen;
1957
1958 if (get_user_ual(sockfd, vptr)
1959 || get_user_ual(target_addr, vptr + n)
1960 || get_user_ual(target_addrlen, vptr + 2 * n))
1961 return -TARGET_EFAULT;
1962
1963 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1964 }
1965 break;
1966 case SOCKOP_getpeername:
1967 {
1968 abi_ulong sockfd;
1969 abi_ulong target_addr, target_addrlen;
1970
1971 if (get_user_ual(sockfd, vptr)
1972 || get_user_ual(target_addr, vptr + n)
1973 || get_user_ual(target_addrlen, vptr + 2 * n))
1974 return -TARGET_EFAULT;
1975
1976 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1977 }
1978 break;
1979 case SOCKOP_socketpair:
1980 {
1981 abi_ulong domain, type, protocol;
1982 abi_ulong tab;
1983
1984 if (get_user_ual(domain, vptr)
1985 || get_user_ual(type, vptr + n)
1986 || get_user_ual(protocol, vptr + 2 * n)
1987 || get_user_ual(tab, vptr + 3 * n))
1988 return -TARGET_EFAULT;
1989
1990 ret = do_socketpair(domain, type, protocol, tab);
1991 }
1992 break;
1993 case SOCKOP_send:
1994 {
1995 abi_ulong sockfd;
1996 abi_ulong msg;
1997 size_t len;
1998 abi_ulong flags;
1999
2000 if (get_user_ual(sockfd, vptr)
2001 || get_user_ual(msg, vptr + n)
2002 || get_user_ual(len, vptr + 2 * n)
2003 || get_user_ual(flags, vptr + 3 * n))
2004 return -TARGET_EFAULT;
2005
2006 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2007 }
2008 break;
2009 case SOCKOP_recv:
2010 {
2011 abi_ulong sockfd;
2012 abi_ulong msg;
2013 size_t len;
2014 abi_ulong flags;
2015
2016 if (get_user_ual(sockfd, vptr)
2017 || get_user_ual(msg, vptr + n)
2018 || get_user_ual(len, vptr + 2 * n)
2019 || get_user_ual(flags, vptr + 3 * n))
2020 return -TARGET_EFAULT;
2021
2022 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2023 }
2024 break;
2025 case SOCKOP_sendto:
2026 {
2027 abi_ulong sockfd;
2028 abi_ulong msg;
2029 size_t len;
2030 abi_ulong flags;
2031 abi_ulong addr;
2032 socklen_t addrlen;
2033
2034 if (get_user_ual(sockfd, vptr)
2035 || get_user_ual(msg, vptr + n)
2036 || get_user_ual(len, vptr + 2 * n)
2037 || get_user_ual(flags, vptr + 3 * n)
2038 || get_user_ual(addr, vptr + 4 * n)
2039 || get_user_ual(addrlen, vptr + 5 * n))
2040 return -TARGET_EFAULT;
2041
2042 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2043 }
2044 break;
2045 case SOCKOP_recvfrom:
2046 {
2047 abi_ulong sockfd;
2048 abi_ulong msg;
2049 size_t len;
2050 abi_ulong flags;
2051 abi_ulong addr;
2052 socklen_t addrlen;
2053
2054 if (get_user_ual(sockfd, vptr)
2055 || get_user_ual(msg, vptr + n)
2056 || get_user_ual(len, vptr + 2 * n)
2057 || get_user_ual(flags, vptr + 3 * n)
2058 || get_user_ual(addr, vptr + 4 * n)
2059 || get_user_ual(addrlen, vptr + 5 * n))
2060 return -TARGET_EFAULT;
2061
2062 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2063 }
2064 break;
2065 case SOCKOP_shutdown:
2066 {
2067 abi_ulong sockfd, how;
2068
2069 if (get_user_ual(sockfd, vptr)
2070 || get_user_ual(how, vptr + n))
2071 return -TARGET_EFAULT;
2072
2073 ret = get_errno(shutdown(sockfd, how));
2074 }
2075 break;
2076 case SOCKOP_sendmsg:
2077 case SOCKOP_recvmsg:
2078 {
2079 abi_ulong fd;
2080 abi_ulong target_msg;
2081 abi_ulong flags;
2082
2083 if (get_user_ual(fd, vptr)
2084 || get_user_ual(target_msg, vptr + n)
2085 || get_user_ual(flags, vptr + 2 * n))
2086 return -TARGET_EFAULT;
2087
2088 ret = do_sendrecvmsg(fd, target_msg, flags,
2089 (num == SOCKOP_sendmsg));
2090 }
2091 break;
2092 case SOCKOP_setsockopt:
2093 {
2094 abi_ulong sockfd;
2095 abi_ulong level;
2096 abi_ulong optname;
2097 abi_ulong optval;
2098 socklen_t optlen;
2099
2100 if (get_user_ual(sockfd, vptr)
2101 || get_user_ual(level, vptr + n)
2102 || get_user_ual(optname, vptr + 2 * n)
2103 || get_user_ual(optval, vptr + 3 * n)
2104 || get_user_ual(optlen, vptr + 4 * n))
2105 return -TARGET_EFAULT;
2106
2107 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2108 }
2109 break;
2110 case SOCKOP_getsockopt:
2111 {
2112 abi_ulong sockfd;
2113 abi_ulong level;
2114 abi_ulong optname;
2115 abi_ulong optval;
2116 socklen_t optlen;
2117
2118 if (get_user_ual(sockfd, vptr)
2119 || get_user_ual(level, vptr + n)
2120 || get_user_ual(optname, vptr + 2 * n)
2121 || get_user_ual(optval, vptr + 3 * n)
2122 || get_user_ual(optlen, vptr + 4 * n))
2123 return -TARGET_EFAULT;
2124
2125 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2126 }
2127 break;
2128 default:
2129 gemu_log("Unsupported socketcall: %d\n", num);
2130 ret = -TARGET_ENOSYS;
2131 break;
2132 }
2133 return ret;
2134 }
2135 #endif
2136
2137 #define N_SHM_REGIONS 32
2138
2139 static struct shm_region {
2140 abi_ulong start;
2141 abi_ulong size;
2142 } shm_regions[N_SHM_REGIONS];
2143
2144 struct target_ipc_perm
2145 {
2146 abi_long __key;
2147 abi_ulong uid;
2148 abi_ulong gid;
2149 abi_ulong cuid;
2150 abi_ulong cgid;
2151 unsigned short int mode;
2152 unsigned short int __pad1;
2153 unsigned short int __seq;
2154 unsigned short int __pad2;
2155 abi_ulong __unused1;
2156 abi_ulong __unused2;
2157 };
2158
2159 struct target_semid_ds
2160 {
2161 struct target_ipc_perm sem_perm;
2162 abi_ulong sem_otime;
2163 abi_ulong __unused1;
2164 abi_ulong sem_ctime;
2165 abi_ulong __unused2;
2166 abi_ulong sem_nsems;
2167 abi_ulong __unused3;
2168 abi_ulong __unused4;
2169 };
2170
2171 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2172 abi_ulong target_addr)
2173 {
2174 struct target_ipc_perm *target_ip;
2175 struct target_semid_ds *target_sd;
2176
2177 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2178 return -TARGET_EFAULT;
2179 target_ip = &(target_sd->sem_perm);
2180 host_ip->__key = tswapl(target_ip->__key);
2181 host_ip->uid = tswapl(target_ip->uid);
2182 host_ip->gid = tswapl(target_ip->gid);
2183 host_ip->cuid = tswapl(target_ip->cuid);
2184 host_ip->cgid = tswapl(target_ip->cgid);
2185 host_ip->mode = tswapl(target_ip->mode);
2186 unlock_user_struct(target_sd, target_addr, 0);
2187 return 0;
2188 }
2189
2190 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2191 struct ipc_perm *host_ip)
2192 {
2193 struct target_ipc_perm *target_ip;
2194 struct target_semid_ds *target_sd;
2195
2196 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2197 return -TARGET_EFAULT;
2198 target_ip = &(target_sd->sem_perm);
2199 target_ip->__key = tswapl(host_ip->__key);
2200 target_ip->uid = tswapl(host_ip->uid);
2201 target_ip->gid = tswapl(host_ip->gid);
2202 target_ip->cuid = tswapl(host_ip->cuid);
2203 target_ip->cgid = tswapl(host_ip->cgid);
2204 target_ip->mode = tswapl(host_ip->mode);
2205 unlock_user_struct(target_sd, target_addr, 1);
2206 return 0;
2207 }
2208
2209 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2210 abi_ulong target_addr)
2211 {
2212 struct target_semid_ds *target_sd;
2213
2214 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2215 return -TARGET_EFAULT;
2216 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2217 return -TARGET_EFAULT;
2218 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
2219 host_sd->sem_otime = tswapl(target_sd->sem_otime);
2220 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
2221 unlock_user_struct(target_sd, target_addr, 0);
2222 return 0;
2223 }
2224
2225 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2226 struct semid_ds *host_sd)
2227 {
2228 struct target_semid_ds *target_sd;
2229
2230 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2231 return -TARGET_EFAULT;
2232 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2233 return -TARGET_EFAULT;;
2234 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
2235 target_sd->sem_otime = tswapl(host_sd->sem_otime);
2236 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
2237 unlock_user_struct(target_sd, target_addr, 1);
2238 return 0;
2239 }
2240
2241 struct target_seminfo {
2242 int semmap;
2243 int semmni;
2244 int semmns;
2245 int semmnu;
2246 int semmsl;
2247 int semopm;
2248 int semume;
2249 int semusz;
2250 int semvmx;
2251 int semaem;
2252 };
2253
2254 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2255 struct seminfo *host_seminfo)
2256 {
2257 struct target_seminfo *target_seminfo;
2258 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2259 return -TARGET_EFAULT;
2260 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2261 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2262 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2263 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2264 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2265 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2266 __put_user(host_seminfo->semume, &target_seminfo->semume);
2267 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2268 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2269 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2270 unlock_user_struct(target_seminfo, target_addr, 1);
2271 return 0;
2272 }
2273
2274 union semun {
2275 int val;
2276 struct semid_ds *buf;
2277 unsigned short *array;
2278 struct seminfo *__buf;
2279 };
2280
2281 union target_semun {
2282 int val;
2283 abi_ulong buf;
2284 abi_ulong array;
2285 abi_ulong __buf;
2286 };
2287
2288 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2289 abi_ulong target_addr)
2290 {
2291 int nsems;
2292 unsigned short *array;
2293 union semun semun;
2294 struct semid_ds semid_ds;
2295 int i, ret;
2296
2297 semun.buf = &semid_ds;
2298
2299 ret = semctl(semid, 0, IPC_STAT, semun);
2300 if (ret == -1)
2301 return get_errno(ret);
2302
2303 nsems = semid_ds.sem_nsems;
2304
2305 *host_array = malloc(nsems*sizeof(unsigned short));
2306 array = lock_user(VERIFY_READ, target_addr,
2307 nsems*sizeof(unsigned short), 1);
2308 if (!array)
2309 return -TARGET_EFAULT;
2310
2311 for(i=0; i<nsems; i++) {
2312 __get_user((*host_array)[i], &array[i]);
2313 }
2314 unlock_user(array, target_addr, 0);
2315
2316 return 0;
2317 }
2318
2319 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2320 unsigned short **host_array)
2321 {
2322 int nsems;
2323 unsigned short *array;
2324 union semun semun;
2325 struct semid_ds semid_ds;
2326 int i, ret;
2327
2328 semun.buf = &semid_ds;
2329
2330 ret = semctl(semid, 0, IPC_STAT, semun);
2331 if (ret == -1)
2332 return get_errno(ret);
2333
2334 nsems = semid_ds.sem_nsems;
2335
2336 array = lock_user(VERIFY_WRITE, target_addr,
2337 nsems*sizeof(unsigned short), 0);
2338 if (!array)
2339 return -TARGET_EFAULT;
2340
2341 for(i=0; i<nsems; i++) {
2342 __put_user((*host_array)[i], &array[i]);
2343 }
2344 free(*host_array);
2345 unlock_user(array, target_addr, 1);
2346
2347 return 0;
2348 }
2349
2350 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2351 union target_semun target_su)
2352 {
2353 union semun arg;
2354 struct semid_ds dsarg;
2355 unsigned short *array = NULL;
2356 struct seminfo seminfo;
2357 abi_long ret = -TARGET_EINVAL;
2358 abi_long err;
2359 cmd &= 0xff;
2360
2361 switch( cmd ) {
2362 case GETVAL:
2363 case SETVAL:
2364 arg.val = tswapl(target_su.val);
2365 ret = get_errno(semctl(semid, semnum, cmd, arg));
2366 target_su.val = tswapl(arg.val);
2367 break;
2368 case GETALL:
2369 case SETALL:
2370 err = target_to_host_semarray(semid, &array, target_su.array);
2371 if (err)
2372 return err;
2373 arg.array = array;
2374 ret = get_errno(semctl(semid, semnum, cmd, arg));
2375 err = host_to_target_semarray(semid, target_su.array, &array);
2376 if (err)
2377 return err;
2378 break;
2379 case IPC_STAT:
2380 case IPC_SET:
2381 case SEM_STAT:
2382 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2383 if (err)
2384 return err;
2385 arg.buf = &dsarg;
2386 ret = get_errno(semctl(semid, semnum, cmd, arg));
2387 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2388 if (err)
2389 return err;
2390 break;
2391 case IPC_INFO:
2392 case SEM_INFO:
2393 arg.__buf = &seminfo;
2394 ret = get_errno(semctl(semid, semnum, cmd, arg));
2395 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2396 if (err)
2397 return err;
2398 break;
2399 case IPC_RMID:
2400 case GETPID:
2401 case GETNCNT:
2402 case GETZCNT:
2403 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2404 break;
2405 }
2406
2407 return ret;
2408 }
2409
2410 struct target_sembuf {
2411 unsigned short sem_num;
2412 short sem_op;
2413 short sem_flg;
2414 };
2415
2416 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2417 abi_ulong target_addr,
2418 unsigned nsops)
2419 {
2420 struct target_sembuf *target_sembuf;
2421 int i;
2422
2423 target_sembuf = lock_user(VERIFY_READ, target_addr,
2424 nsops*sizeof(struct target_sembuf), 1);
2425 if (!target_sembuf)
2426 return -TARGET_EFAULT;
2427
2428 for(i=0; i<nsops; i++) {
2429 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2430 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2431 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2432 }
2433
2434 unlock_user(target_sembuf, target_addr, 0);
2435
2436 return 0;
2437 }
2438
2439 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2440 {
2441 struct sembuf sops[nsops];
2442
2443 if (target_to_host_sembuf(sops, ptr, nsops))
2444 return -TARGET_EFAULT;
2445
2446 return semop(semid, sops, nsops);
2447 }
2448
2449 struct target_msqid_ds
2450 {
2451 struct target_ipc_perm msg_perm;
2452 abi_ulong msg_stime;
2453 #if TARGET_ABI_BITS == 32
2454 abi_ulong __unused1;
2455 #endif
2456 abi_ulong msg_rtime;
2457 #if TARGET_ABI_BITS == 32
2458 abi_ulong __unused2;
2459 #endif
2460 abi_ulong msg_ctime;
2461 #if TARGET_ABI_BITS == 32
2462 abi_ulong __unused3;
2463 #endif
2464 abi_ulong __msg_cbytes;
2465 abi_ulong msg_qnum;
2466 abi_ulong msg_qbytes;
2467 abi_ulong msg_lspid;
2468 abi_ulong msg_lrpid;
2469 abi_ulong __unused4;
2470 abi_ulong __unused5;
2471 };
2472
2473 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2474 abi_ulong target_addr)
2475 {
2476 struct target_msqid_ds *target_md;
2477
2478 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2479 return -TARGET_EFAULT;
2480 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2481 return -TARGET_EFAULT;
2482 host_md->msg_stime = tswapl(target_md->msg_stime);
2483 host_md->msg_rtime = tswapl(target_md->msg_rtime);
2484 host_md->msg_ctime = tswapl(target_md->msg_ctime);
2485 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
2486 host_md->msg_qnum = tswapl(target_md->msg_qnum);
2487 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
2488 host_md->msg_lspid = tswapl(target_md->msg_lspid);
2489 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
2490 unlock_user_struct(target_md, target_addr, 0);
2491 return 0;
2492 }
2493
2494 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2495 struct msqid_ds *host_md)
2496 {
2497 struct target_msqid_ds *target_md;
2498
2499 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2500 return -TARGET_EFAULT;
2501 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2502 return -TARGET_EFAULT;
2503 target_md->msg_stime = tswapl(host_md->msg_stime);
2504 target_md->msg_rtime = tswapl(host_md->msg_rtime);
2505 target_md->msg_ctime = tswapl(host_md->msg_ctime);
2506 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
2507 target_md->msg_qnum = tswapl(host_md->msg_qnum);
2508 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
2509 target_md->msg_lspid = tswapl(host_md->msg_lspid);
2510 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
2511 unlock_user_struct(target_md, target_addr, 1);
2512 return 0;
2513 }
2514
2515 struct target_msginfo {
2516 int msgpool;
2517 int msgmap;
2518 int msgmax;
2519 int msgmnb;
2520 int msgmni;
2521 int msgssz;
2522 int msgtql;
2523 unsigned short int msgseg;
2524 };
2525
2526 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2527 struct msginfo *host_msginfo)
2528 {
2529 struct target_msginfo *target_msginfo;
2530 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2531 return -TARGET_EFAULT;
2532 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2533 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2534 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2535 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2536 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2537 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2538 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2539 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2540 unlock_user_struct(target_msginfo, target_addr, 1);
2541 return 0;
2542 }
2543
2544 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2545 {
2546 struct msqid_ds dsarg;
2547 struct msginfo msginfo;
2548 abi_long ret = -TARGET_EINVAL;
2549
2550 cmd &= 0xff;
2551
2552 switch (cmd) {
2553 case IPC_STAT:
2554 case IPC_SET:
2555 case MSG_STAT:
2556 if (target_to_host_msqid_ds(&dsarg,ptr))
2557 return -TARGET_EFAULT;
2558 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2559 if (host_to_target_msqid_ds(ptr,&dsarg))
2560 return -TARGET_EFAULT;
2561 break;
2562 case IPC_RMID:
2563 ret = get_errno(msgctl(msgid, cmd, NULL));
2564 break;
2565 case IPC_INFO:
2566 case MSG_INFO:
2567 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2568 if (host_to_target_msginfo(ptr, &msginfo))
2569 return -TARGET_EFAULT;
2570 break;
2571 }
2572
2573 return ret;
2574 }
2575
2576 struct target_msgbuf {
2577 abi_long mtype;
2578 char mtext[1];
2579 };
2580
2581 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2582 unsigned int msgsz, int msgflg)
2583 {
2584 struct target_msgbuf *target_mb;
2585 struct msgbuf *host_mb;
2586 abi_long ret = 0;
2587
2588 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2589 return -TARGET_EFAULT;
2590 host_mb = malloc(msgsz+sizeof(long));
2591 host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
2592 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2593 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2594 free(host_mb);
2595 unlock_user_struct(target_mb, msgp, 0);
2596
2597 return ret;
2598 }
2599
2600 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2601 unsigned int msgsz, abi_long msgtyp,
2602 int msgflg)
2603 {
2604 struct target_msgbuf *target_mb;
2605 char *target_mtext;
2606 struct msgbuf *host_mb;
2607 abi_long ret = 0;
2608
2609 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2610 return -TARGET_EFAULT;
2611
2612 host_mb = malloc(msgsz+sizeof(long));
2613 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
2614
2615 if (ret > 0) {
2616 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2617 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2618 if (!target_mtext) {
2619 ret = -TARGET_EFAULT;
2620 goto end;
2621 }
2622 memcpy(target_mb->mtext, host_mb->mtext, ret);
2623 unlock_user(target_mtext, target_mtext_addr, ret);
2624 }
2625
2626 target_mb->mtype = tswapl(host_mb->mtype);
2627 free(host_mb);
2628
2629 end:
2630 if (target_mb)
2631 unlock_user_struct(target_mb, msgp, 1);
2632 return ret;
2633 }
2634
2635 struct target_shmid_ds
2636 {
2637 struct target_ipc_perm shm_perm;
2638 abi_ulong shm_segsz;
2639 abi_ulong shm_atime;
2640 #if TARGET_ABI_BITS == 32
2641 abi_ulong __unused1;
2642 #endif
2643 abi_ulong shm_dtime;
2644 #if TARGET_ABI_BITS == 32
2645 abi_ulong __unused2;
2646 #endif
2647 abi_ulong shm_ctime;
2648 #if TARGET_ABI_BITS == 32
2649 abi_ulong __unused3;
2650 #endif
2651 int shm_cpid;
2652 int shm_lpid;
2653 abi_ulong shm_nattch;
2654 unsigned long int __unused4;
2655 unsigned long int __unused5;
2656 };
2657
2658 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2659 abi_ulong target_addr)
2660 {
2661 struct target_shmid_ds *target_sd;
2662
2663 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2664 return -TARGET_EFAULT;
2665 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2666 return -TARGET_EFAULT;
2667 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2668 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2669 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2670 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2671 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2672 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2673 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2674 unlock_user_struct(target_sd, target_addr, 0);
2675 return 0;
2676 }
2677
2678 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2679 struct shmid_ds *host_sd)
2680 {
2681 struct target_shmid_ds *target_sd;
2682
2683 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2684 return -TARGET_EFAULT;
2685 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2686 return -TARGET_EFAULT;
2687 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2688 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2689 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2690 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2691 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2692 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2693 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2694 unlock_user_struct(target_sd, target_addr, 1);
2695 return 0;
2696 }
2697
2698 struct target_shminfo {
2699 abi_ulong shmmax;
2700 abi_ulong shmmin;
2701 abi_ulong shmmni;
2702 abi_ulong shmseg;
2703 abi_ulong shmall;
2704 };
2705
2706 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2707 struct shminfo *host_shminfo)
2708 {
2709 struct target_shminfo *target_shminfo;
2710 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2711 return -TARGET_EFAULT;
2712 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2713 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2714 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2715 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2716 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2717 unlock_user_struct(target_shminfo, target_addr, 1);
2718 return 0;
2719 }
2720
2721 struct target_shm_info {
2722 int used_ids;
2723 abi_ulong shm_tot;
2724 abi_ulong shm_rss;
2725 abi_ulong shm_swp;
2726 abi_ulong swap_attempts;
2727 abi_ulong swap_successes;
2728 };
2729
2730 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2731 struct shm_info *host_shm_info)
2732 {
2733 struct target_shm_info *target_shm_info;
2734 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2735 return -TARGET_EFAULT;
2736 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2737 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2738 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2739 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2740 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2741 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2742 unlock_user_struct(target_shm_info, target_addr, 1);
2743 return 0;
2744 }
2745
2746 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2747 {
2748 struct shmid_ds dsarg;
2749 struct shminfo shminfo;
2750 struct shm_info shm_info;
2751 abi_long ret = -TARGET_EINVAL;
2752
2753 cmd &= 0xff;
2754
2755 switch(cmd) {
2756 case IPC_STAT:
2757 case IPC_SET:
2758 case SHM_STAT:
2759 if (target_to_host_shmid_ds(&dsarg, buf))
2760 return -TARGET_EFAULT;
2761 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2762 if (host_to_target_shmid_ds(buf, &dsarg))
2763 return -TARGET_EFAULT;
2764 break;
2765 case IPC_INFO:
2766 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2767 if (host_to_target_shminfo(buf, &shminfo))
2768 return -TARGET_EFAULT;
2769 break;
2770 case SHM_INFO:
2771 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2772 if (host_to_target_shm_info(buf, &shm_info))
2773 return -TARGET_EFAULT;
2774 break;
2775 case IPC_RMID:
2776 case SHM_LOCK:
2777 case SHM_UNLOCK:
2778 ret = get_errno(shmctl(shmid, cmd, NULL));
2779 break;
2780 }
2781
2782 return ret;
2783 }
2784
2785 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2786 {
2787 abi_long raddr;
2788 void *host_raddr;
2789 struct shmid_ds shm_info;
2790 int i,ret;
2791
2792 /* find out the length of the shared memory segment */
2793 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2794 if (is_error(ret)) {
2795 /* can't get length, bail out */
2796 return ret;
2797 }
2798
2799 mmap_lock();
2800
2801 if (shmaddr)
2802 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2803 else {
2804 abi_ulong mmap_start;
2805
2806 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2807
2808 if (mmap_start == -1) {
2809 errno = ENOMEM;
2810 host_raddr = (void *)-1;
2811 } else
2812 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2813 }
2814
2815 if (host_raddr == (void *)-1) {
2816 mmap_unlock();
2817 return get_errno((long)host_raddr);
2818 }
2819 raddr=h2g((unsigned long)host_raddr);
2820
2821 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2822 PAGE_VALID | PAGE_READ |
2823 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2824
2825 for (i = 0; i < N_SHM_REGIONS; i++) {
2826 if (shm_regions[i].start == 0) {
2827 shm_regions[i].start = raddr;
2828 shm_regions[i].size = shm_info.shm_segsz;
2829 break;
2830 }
2831 }
2832
2833 mmap_unlock();
2834 return raddr;
2835
2836 }
2837
2838 static inline abi_long do_shmdt(abi_ulong shmaddr)
2839 {
2840 int i;
2841
2842 for (i = 0; i < N_SHM_REGIONS; ++i) {
2843 if (shm_regions[i].start == shmaddr) {
2844 shm_regions[i].start = 0;
2845 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
2846 break;
2847 }
2848 }
2849
2850 return get_errno(shmdt(g2h(shmaddr)));
2851 }
2852
2853 #ifdef TARGET_NR_ipc
2854 /* ??? This only works with linear mappings. */
2855 /* do_ipc() must return target values and target errnos. */
2856 static abi_long do_ipc(unsigned int call, int first,
2857 int second, int third,
2858 abi_long ptr, abi_long fifth)
2859 {
2860 int version;
2861 abi_long ret = 0;
2862
2863 version = call >> 16;
2864 call &= 0xffff;
2865
2866 switch (call) {
2867 case IPCOP_semop:
2868 ret = do_semop(first, ptr, second);
2869 break;
2870
2871 case IPCOP_semget:
2872 ret = get_errno(semget(first, second, third));
2873 break;
2874
2875 case IPCOP_semctl:
2876 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
2877 break;
2878
2879 case IPCOP_msgget:
2880 ret = get_errno(msgget(first, second));
2881 break;
2882
2883 case IPCOP_msgsnd:
2884 ret = do_msgsnd(first, ptr, second, third);
2885 break;
2886
2887 case IPCOP_msgctl:
2888 ret = do_msgctl(first, second, ptr);
2889 break;
2890
2891 case IPCOP_msgrcv:
2892 switch (version) {
2893 case 0:
2894 {
2895 struct target_ipc_kludge {
2896 abi_long msgp;
2897 abi_long msgtyp;
2898 } *tmp;
2899
2900 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
2901 ret = -TARGET_EFAULT;
2902 break;
2903 }
2904
2905 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
2906
2907 unlock_user_struct(tmp, ptr, 0);
2908 break;
2909 }
2910 default:
2911 ret = do_msgrcv(first, ptr, second, fifth, third);
2912 }
2913 break;
2914
2915 case IPCOP_shmat:
2916 switch (version) {
2917 default:
2918 {
2919 abi_ulong raddr;
2920 raddr = do_shmat(first, ptr, second);
2921 if (is_error(raddr))
2922 return get_errno(raddr);
2923 if (put_user_ual(raddr, third))
2924 return -TARGET_EFAULT;
2925 break;
2926 }
2927 case 1:
2928 ret = -TARGET_EINVAL;
2929 break;
2930 }
2931 break;
2932 case IPCOP_shmdt:
2933 ret = do_shmdt(ptr);
2934 break;
2935
2936 case IPCOP_shmget:
2937 /* IPC_* flag values are the same on all linux platforms */
2938 ret = get_errno(shmget(first, second, third));
2939 break;
2940
2941 /* IPC_* and SHM_* command values are the same on all linux platforms */
2942 case IPCOP_shmctl:
2943 ret = do_shmctl(first, second, third);
2944 break;
2945 default:
2946 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2947 ret = -TARGET_ENOSYS;
2948 break;
2949 }
2950 return ret;
2951 }
2952 #endif
2953
2954 /* kernel structure types definitions */
2955 #define IFNAMSIZ 16
2956
2957 #define STRUCT(name, ...) STRUCT_ ## name,
2958 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2959 enum {
2960 #include "syscall_types.h"
2961 };
2962 #undef STRUCT
2963 #undef STRUCT_SPECIAL
2964
2965 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
2966 #define STRUCT_SPECIAL(name)
2967 #include "syscall_types.h"
2968 #undef STRUCT
2969 #undef STRUCT_SPECIAL
2970
2971 typedef struct IOCTLEntry IOCTLEntry;
2972
2973 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
2974 int fd, abi_long cmd, abi_long arg);
2975
2976 struct IOCTLEntry {
2977 unsigned int target_cmd;
2978 unsigned int host_cmd;
2979 const char *name;
2980 int access;
2981 do_ioctl_fn *do_ioctl;
2982 const argtype arg_type[5];
2983 };
2984
2985 #define IOC_R 0x0001
2986 #define IOC_W 0x0002
2987 #define IOC_RW (IOC_R | IOC_W)
2988
2989 #define MAX_STRUCT_SIZE 4096
2990
2991 #ifdef CONFIG_FIEMAP
2992 /* So fiemap access checks don't overflow on 32 bit systems.
2993 * This is very slightly smaller than the limit imposed by
2994 * the underlying kernel.
2995 */
2996 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
2997 / sizeof(struct fiemap_extent))
2998
2999 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
3000 int fd, abi_long cmd, abi_long arg)
3001 {
3002 /* The parameter for this ioctl is a struct fiemap followed
3003 * by an array of struct fiemap_extent whose size is set
3004 * in fiemap->fm_extent_count. The array is filled in by the
3005 * ioctl.
3006 */
3007 int target_size_in, target_size_out;
3008 struct fiemap *fm;
3009 const argtype *arg_type = ie->arg_type;
3010 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3011 void *argptr, *p;
3012 abi_long ret;
3013 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3014 uint32_t outbufsz;
3015 int free_fm = 0;
3016
3017 assert(arg_type[0] == TYPE_PTR);
3018 assert(ie->access == IOC_RW);
3019 arg_type++;
3020 target_size_in = thunk_type_size(arg_type, 0);
3021 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3022 if (!argptr) {
3023 return -TARGET_EFAULT;
3024 }
3025 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3026 unlock_user(argptr, arg, 0);
3027 fm = (struct fiemap *)buf_temp;
3028 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3029 return -TARGET_EINVAL;
3030 }
3031
3032 outbufsz = sizeof (*fm) +
3033 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3034
3035 if (outbufsz > MAX_STRUCT_SIZE) {
3036 /* We can't fit all the extents into the fixed size buffer.
3037 * Allocate one that is large enough and use it instead.
3038 */
3039 fm = malloc(outbufsz);
3040 if (!fm) {
3041 return -TARGET_ENOMEM;
3042 }
3043 memcpy(fm, buf_temp, sizeof(struct fiemap));
3044 free_fm = 1;
3045 }
3046 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3047 if (!is_error(ret)) {
3048 target_size_out = target_size_in;
3049 /* An extent_count of 0 means we were only counting the extents
3050 * so there are no structs to copy
3051 */
3052 if (fm->fm_extent_count != 0) {
3053 target_size_out += fm->fm_mapped_extents * extent_size;
3054 }
3055 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3056 if (!argptr) {
3057 ret = -TARGET_EFAULT;
3058 } else {
3059 /* Convert the struct fiemap */
3060 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3061 if (fm->fm_extent_count != 0) {
3062 p = argptr + target_size_in;
3063 /* ...and then all the struct fiemap_extents */
3064 for (i = 0; i < fm->fm_mapped_extents; i++) {
3065 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3066 THUNK_TARGET);
3067 p += extent_size;
3068 }
3069 }
3070 unlock_user(argptr, arg, target_size_out);
3071 }
3072 }
3073 if (free_fm) {
3074 free(fm);
3075 }
3076 return ret;
3077 }
3078 #endif
3079
3080 static IOCTLEntry ioctl_entries[] = {
3081 #define IOCTL(cmd, access, ...) \
3082 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3083 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3084 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3085 #include "ioctls.h"
3086 { 0, 0, },
3087 };
3088
3089 /* ??? Implement proper locking for ioctls. */
3090 /* do_ioctl() Must return target values and target errnos. */
3091 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3092 {
3093 const IOCTLEntry *ie;
3094 const argtype *arg_type;
3095 abi_long ret;
3096 uint8_t buf_temp[MAX_STRUCT_SIZE];
3097 int target_size;
3098 void *argptr;
3099
3100 ie = ioctl_entries;
3101 for(;;) {
3102 if (ie->target_cmd == 0) {
3103 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3104 return -TARGET_ENOSYS;
3105 }
3106 if (ie->target_cmd == cmd)
3107 break;
3108 ie++;
3109 }
3110 arg_type = ie->arg_type;
3111 #if defined(DEBUG)
3112 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3113 #endif
3114 if (ie->do_ioctl) {
3115 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3116 }
3117
3118 switch(arg_type[0]) {
3119 case TYPE_NULL:
3120 /* no argument */
3121 ret = get_errno(ioctl(fd, ie->host_cmd));
3122 break;
3123 case TYPE_PTRVOID:
3124 case TYPE_INT:
3125 /* int argment */
3126 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3127 break;
3128 case TYPE_PTR:
3129 arg_type++;
3130 target_size = thunk_type_size(arg_type, 0);
3131 switch(ie->access) {
3132 case IOC_R:
3133 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3134 if (!is_error(ret)) {
3135 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3136 if (!argptr)
3137 return -TARGET_EFAULT;
3138 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3139 unlock_user(argptr, arg, target_size);
3140 }
3141 break;
3142 case IOC_W:
3143 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3144 if (!argptr)
3145 return -TARGET_EFAULT;
3146 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3147 unlock_user(argptr, arg, 0);
3148 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3149 break;
3150 default:
3151 case IOC_RW:
3152 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3153 if (!argptr)
3154 return -TARGET_EFAULT;
3155 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3156 unlock_user(argptr, arg, 0);
3157 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3158 if (!is_error(ret)) {
3159 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3160 if (!argptr)
3161 return -TARGET_EFAULT;
3162 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3163 unlock_user(argptr, arg, target_size);
3164 }
3165 break;
3166 }
3167 break;
3168 default:
3169 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3170 (long)cmd, arg_type[0]);
3171 ret = -TARGET_ENOSYS;
3172 break;
3173 }
3174 return ret;
3175 }
3176
3177 static const bitmask_transtbl iflag_tbl[] = {
3178 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3179 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3180 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3181 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3182 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3183 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3184 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3185 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3186 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3187 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3188 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3189 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3190 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3191 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3192 { 0, 0, 0, 0 }
3193 };
3194
3195 static const bitmask_transtbl oflag_tbl[] = {
3196 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3197 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3198 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3199 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3200 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3201 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3202 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3203 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3204 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3205 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3206 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3207 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3208 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3209 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3210 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3211 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3212 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3213 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3214 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3215 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3216 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3217 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3218 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3219 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3220 { 0, 0, 0, 0 }
3221 };
3222
3223 static const bitmask_transtbl cflag_tbl[] = {
3224 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3225 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3226 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3227 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3228 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3229 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3230 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3231 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3232 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3233 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3234 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3235 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3236 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3237 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3238 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3239 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3240 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3241 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3242 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3243 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3244 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3245 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3246 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3247 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3248 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3249 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3250 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3251 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3252 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3253 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3254 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3255 { 0, 0, 0, 0 }
3256 };
3257
3258 static const bitmask_transtbl lflag_tbl[] = {
3259 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3260 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3261 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3262 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3263 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3264 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3265 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3266 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3267 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3268 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3269 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3270 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3271 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3272 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3273 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3274 { 0, 0, 0, 0 }
3275 };
3276
3277 static void target_to_host_termios (void *dst, const void *src)
3278 {
3279 struct host_termios *host = dst;
3280 const struct target_termios *target = src;
3281
3282 host->c_iflag =
3283 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3284 host->c_oflag =
3285 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3286 host->c_cflag =
3287 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3288 host->c_lflag =
3289 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3290 host->c_line = target->c_line;
3291
3292 memset(host->c_cc, 0, sizeof(host->c_cc));
3293 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3294 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3295 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3296 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3297 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3298 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3299 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3300 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3301 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3302 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3303 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3304 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3305 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3306 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3307 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3308 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3309 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3310 }
3311
3312 static void host_to_target_termios (void *dst, const void *src)
3313 {
3314 struct target_termios *target = dst;
3315 const struct host_termios *host = src;
3316
3317 target->c_iflag =
3318 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3319 target->c_oflag =
3320 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3321 target->c_cflag =
3322 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3323 target->c_lflag =
3324 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3325 target->c_line = host->c_line;
3326
3327 memset(target->c_cc, 0, sizeof(target->c_cc));
3328 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3329 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3330 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3331 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3332 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3333 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3334 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3335 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3336 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3337 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3338 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3339 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3340 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3341 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3342 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3343 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3344 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3345 }
3346
3347 static const StructEntry struct_termios_def = {
3348 .convert = { host_to_target_termios, target_to_host_termios },
3349 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3350 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3351 };
3352
3353 static bitmask_transtbl mmap_flags_tbl[] = {
3354 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3355 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3356 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3357 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3358 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3359 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3360 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3361 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3362 { 0, 0, 0, 0 }
3363 };
3364
3365 #if defined(TARGET_I386)
3366
3367 /* NOTE: there is really one LDT for all the threads */
3368 static uint8_t *ldt_table;
3369
3370 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3371 {
3372 int size;
3373 void *p;
3374
3375 if (!ldt_table)
3376 return 0;
3377 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3378 if (size > bytecount)
3379 size = bytecount;
3380 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3381 if (!p)
3382 return -TARGET_EFAULT;
3383 /* ??? Should this by byteswapped? */
3384 memcpy(p, ldt_table, size);
3385 unlock_user(p, ptr, size);
3386 return size;
3387 }
3388
3389 /* XXX: add locking support */
3390 static abi_long write_ldt(CPUX86State *env,
3391 abi_ulong ptr, unsigned long bytecount, int oldmode)
3392 {
3393 struct target_modify_ldt_ldt_s ldt_info;
3394 struct target_modify_ldt_ldt_s *target_ldt_info;
3395 int seg_32bit, contents, read_exec_only, limit_in_pages;
3396 int seg_not_present, useable, lm;
3397 uint32_t *lp, entry_1, entry_2;
3398
3399 if (bytecount != sizeof(ldt_info))
3400 return -TARGET_EINVAL;
3401 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3402 return -TARGET_EFAULT;
3403 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3404 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3405 ldt_info.limit = tswap32(target_ldt_info->limit);
3406 ldt_info.flags = tswap32(target_ldt_info->flags);
3407 unlock_user_struct(target_ldt_info, ptr, 0);
3408
3409 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3410 return -TARGET_EINVAL;
3411 seg_32bit = ldt_info.flags & 1;
3412 contents = (ldt_info.flags >> 1) & 3;
3413 read_exec_only = (ldt_info.flags >> 3) & 1;
3414 limit_in_pages = (ldt_info.flags >> 4) & 1;
3415 seg_not_present = (ldt_info.flags >> 5) & 1;
3416 useable = (ldt_info.flags >> 6) & 1;
3417 #ifdef TARGET_ABI32
3418 lm = 0;
3419 #else
3420 lm = (ldt_info.flags >> 7) & 1;
3421 #endif
3422 if (contents == 3) {
3423 if (oldmode)
3424 return -TARGET_EINVAL;
3425 if (seg_not_present == 0)
3426 return -TARGET_EINVAL;
3427 }
3428 /* allocate the LDT */
3429 if (!ldt_table) {
3430 env->ldt.base = target_mmap(0,
3431 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3432 PROT_READ|PROT_WRITE,
3433 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3434 if (env->ldt.base == -1)
3435 return -TARGET_ENOMEM;
3436 memset(g2h(env->ldt.base), 0,
3437 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3438 env->ldt.limit = 0xffff;
3439 ldt_table = g2h(env->ldt.base);
3440 }
3441
3442 /* NOTE: same code as Linux kernel */
3443 /* Allow LDTs to be cleared by the user. */
3444 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3445 if (oldmode ||
3446 (contents == 0 &&
3447 read_exec_only == 1 &&
3448 seg_32bit == 0 &&
3449 limit_in_pages == 0 &&
3450 seg_not_present == 1 &&
3451 useable == 0 )) {
3452 entry_1 = 0;
3453 entry_2 = 0;
3454 goto install;
3455 }
3456 }
3457
3458 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3459 (ldt_info.limit & 0x0ffff);
3460 entry_2 = (ldt_info.base_addr & 0xff000000) |
3461 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3462 (ldt_info.limit & 0xf0000) |
3463 ((read_exec_only ^ 1) << 9) |
3464 (contents << 10) |
3465 ((seg_not_present ^ 1) << 15) |
3466 (seg_32bit << 22) |
3467 (limit_in_pages << 23) |
3468 (lm << 21) |
3469 0x7000;
3470 if (!oldmode)
3471 entry_2 |= (useable << 20);
3472
3473 /* Install the new entry ... */
3474 install:
3475 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3476 lp[0] = tswap32(entry_1);
3477 lp[1] = tswap32(entry_2);
3478 return 0;
3479 }
3480
3481 /* specific and weird i386 syscalls */
3482 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3483 unsigned long bytecount)
3484 {
3485 abi_long ret;
3486
3487 switch (func) {
3488 case 0:
3489 ret = read_ldt(ptr, bytecount);
3490 break;
3491 case 1:
3492 ret = write_ldt(env, ptr, bytecount, 1);
3493 break;
3494 case 0x11:
3495 ret = write_ldt(env, ptr, bytecount, 0);
3496 break;
3497 default:
3498 ret = -TARGET_ENOSYS;
3499 break;
3500 }
3501 return ret;
3502 }
3503
3504 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3505 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3506 {
3507 uint64_t *gdt_table = g2h(env->gdt.base);
3508 struct target_modify_ldt_ldt_s ldt_info;
3509 struct target_modify_ldt_ldt_s *target_ldt_info;
3510 int seg_32bit, contents, read_exec_only, limit_in_pages;
3511 int seg_not_present, useable, lm;
3512 uint32_t *lp, entry_1, entry_2;
3513 int i;
3514
3515 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3516 if (!target_ldt_info)
3517 return -TARGET_EFAULT;
3518 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3519 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3520 ldt_info.limit = tswap32(target_ldt_info->limit);
3521 ldt_info.flags = tswap32(target_ldt_info->flags);
3522 if (ldt_info.entry_number == -1) {
3523 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3524 if (gdt_table[i] == 0) {
3525 ldt_info.entry_number = i;
3526 target_ldt_info->entry_number = tswap32(i);
3527 break;
3528 }
3529 }
3530 }
3531 unlock_user_struct(target_ldt_info, ptr, 1);
3532
3533 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3534 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3535 return -TARGET_EINVAL;
3536 seg_32bit = ldt_info.flags & 1;
3537 contents = (ldt_info.flags >> 1) & 3;
3538 read_exec_only = (ldt_info.flags >> 3) & 1;
3539 limit_in_pages = (ldt_info.flags >> 4) & 1;
3540 seg_not_present = (ldt_info.flags >> 5) & 1;
3541 useable = (ldt_info.flags >> 6) & 1;
3542 #ifdef TARGET_ABI32
3543 lm = 0;
3544 #else
3545 lm = (ldt_info.flags >> 7) & 1;
3546 #endif
3547
3548 if (contents == 3) {
3549 if (seg_not_present == 0)
3550 return -TARGET_EINVAL;
3551 }
3552
3553 /* NOTE: same code as Linux kernel */
3554 /* Allow LDTs to be cleared by the user. */
3555 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3556 if ((contents == 0 &&
3557 read_exec_only == 1 &&
3558 seg_32bit == 0 &&
3559 limit_in_pages == 0 &&
3560 seg_not_present == 1 &&
3561 useable == 0 )) {
3562 entry_1 = 0;
3563 entry_2 = 0;
3564 goto install;
3565 }
3566 }
3567
3568 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3569 (ldt_info.limit & 0x0ffff);
3570 entry_2 = (ldt_info.base_addr & 0xff000000) |
3571 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3572 (ldt_info.limit & 0xf0000) |
3573 ((read_exec_only ^ 1) << 9) |
3574 (contents << 10) |
3575 ((seg_not_present ^ 1) << 15) |
3576 (seg_32bit << 22) |
3577 (limit_in_pages << 23) |
3578 (useable << 20) |
3579 (lm << 21) |
3580 0x7000;
3581
3582 /* Install the new entry ... */
3583 install:
3584 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3585 lp[0] = tswap32(entry_1);
3586 lp[1] = tswap32(entry_2);
3587 return 0;
3588 }
3589
3590 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3591 {
3592 struct target_modify_ldt_ldt_s *target_ldt_info;
3593 uint64_t *gdt_table = g2h(env->gdt.base);
3594 uint32_t base_addr, limit, flags;
3595 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3596 int seg_not_present, useable, lm;
3597 uint32_t *lp, entry_1, entry_2;
3598
3599 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3600 if (!target_ldt_info)
3601 return -TARGET_EFAULT;
3602 idx = tswap32(target_ldt_info->entry_number);
3603 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3604 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3605 unlock_user_struct(target_ldt_info, ptr, 1);
3606 return -TARGET_EINVAL;
3607 }
3608 lp = (uint32_t *)(gdt_table + idx);
3609 entry_1 = tswap32(lp[0]);
3610 entry_2 = tswap32(lp[1]);
3611
3612 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3613 contents = (entry_2 >> 10) & 3;
3614 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3615 seg_32bit = (entry_2 >> 22) & 1;
3616 limit_in_pages = (entry_2 >> 23) & 1;
3617 useable = (entry_2 >> 20) & 1;
3618 #ifdef TARGET_ABI32
3619 lm = 0;
3620 #else
3621 lm = (entry_2 >> 21) & 1;
3622 #endif
3623 flags = (seg_32bit << 0) | (contents << 1) |
3624 (read_exec_only << 3) | (limit_in_pages << 4) |
3625 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3626 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3627 base_addr = (entry_1 >> 16) |
3628 (entry_2 & 0xff000000) |
3629 ((entry_2 & 0xff) << 16);
3630 target_ldt_info->base_addr = tswapl(base_addr);
3631 target_ldt_info->limit = tswap32(limit);
3632 target_ldt_info->flags = tswap32(flags);
3633 unlock_user_struct(target_ldt_info, ptr, 1);
3634 return 0;
3635 }
3636 #endif /* TARGET_I386 && TARGET_ABI32 */
3637
3638 #ifndef TARGET_ABI32
3639 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3640 {
3641 abi_long ret;
3642 abi_ulong val;
3643 int idx;
3644
3645 switch(code) {
3646 case TARGET_ARCH_SET_GS:
3647 case TARGET_ARCH_SET_FS:
3648 if (code == TARGET_ARCH_SET_GS)
3649 idx = R_GS;
3650 else
3651 idx = R_FS;
3652 cpu_x86_load_seg(env, idx, 0);
3653 env->segs[idx].base = addr;
3654 break;
3655 case TARGET_ARCH_GET_GS:
3656 case TARGET_ARCH_GET_FS:
3657 if (code == TARGET_ARCH_GET_GS)
3658 idx = R_GS;
3659 else
3660 idx = R_FS;
3661 val = env->segs[idx].base;
3662 if (put_user(val, addr, abi_ulong))
3663 return -TARGET_EFAULT;
3664 break;
3665 default:
3666 ret = -TARGET_EINVAL;
3667 break;
3668 }
3669 return 0;
3670 }
3671 #endif
3672
3673 #endif /* defined(TARGET_I386) */
3674
3675 #if defined(CONFIG_USE_NPTL)
3676
3677 #define NEW_STACK_SIZE PTHREAD_STACK_MIN
3678
3679 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3680 typedef struct {
3681 CPUState *env;
3682 pthread_mutex_t mutex;
3683 pthread_cond_t cond;
3684 pthread_t thread;
3685 uint32_t tid;
3686 abi_ulong child_tidptr;
3687 abi_ulong parent_tidptr;
3688 sigset_t sigmask;
3689 } new_thread_info;
3690
3691 static void *clone_func(void *arg)
3692 {
3693 new_thread_info *info = arg;
3694 CPUState *env;
3695 TaskState *ts;
3696
3697 env = info->env;
3698 thread_env = env;
3699 ts = (TaskState *)thread_env->opaque;
3700 info->tid = gettid();
3701 env->host_tid = info->tid;
3702 task_settid(ts);
3703 if (info->child_tidptr)
3704 put_user_u32(info->tid, info->child_tidptr);
3705 if (info->parent_tidptr)
3706 put_user_u32(info->tid, info->parent_tidptr);
3707 /* Enable signals. */
3708 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3709 /* Signal to the parent that we're ready. */
3710 pthread_mutex_lock(&info->mutex);
3711 pthread_cond_broadcast(&info->cond);
3712 pthread_mutex_unlock(&info->mutex);
3713 /* Wait until the parent has finshed initializing the tls state. */
3714 pthread_mutex_lock(&clone_lock);
3715 pthread_mutex_unlock(&clone_lock);
3716 cpu_loop(env);
3717 /* never exits */
3718 return NULL;
3719 }
3720 #else
3721 /* this stack is the equivalent of the kernel stack associated with a
3722 thread/process */
3723 #define NEW_STACK_SIZE 8192
3724
3725 static int clone_func(void *arg)
3726 {
3727 CPUState *env = arg;
3728 cpu_loop(env);
3729 /* never exits */
3730 return 0;
3731 }
3732 #endif
3733
3734 /* do_fork() Must return host values and target errnos (unlike most
3735 do_*() functions). */
3736 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3737 abi_ulong parent_tidptr, target_ulong newtls,
3738 abi_ulong child_tidptr)
3739 {
3740 int ret;
3741 TaskState *ts;
3742 CPUState *new_env;
3743 #if defined(CONFIG_USE_NPTL)
3744 unsigned int nptl_flags;
3745 sigset_t sigmask;
3746 #else
3747 uint8_t *new_stack;
3748 #endif
3749
3750 /* Emulate vfork() with fork() */
3751 if (flags & CLONE_VFORK)
3752 flags &= ~(CLONE_VFORK | CLONE_VM);
3753
3754 if (flags & CLONE_VM) {
3755 TaskState *parent_ts = (TaskState *)env->opaque;
3756 #if defined(CONFIG_USE_NPTL)
3757 new_thread_info info;
3758 pthread_attr_t attr;
3759 #endif
3760 ts = qemu_mallocz(sizeof(TaskState));
3761 init_task_state(ts);
3762 /* we create a new CPU instance. */
3763 new_env = cpu_copy(env);
3764 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3765 cpu_reset(new_env);
3766 #endif
3767 /* Init regs that differ from the parent. */
3768 cpu_clone_regs(new_env, newsp);
3769 new_env->opaque = ts;
3770 ts->bprm = parent_ts->bprm;
3771 ts->info = parent_ts->info;
3772 #if defined(CONFIG_USE_NPTL)
3773 nptl_flags = flags;
3774 flags &= ~CLONE_NPTL_FLAGS2;
3775
3776 if (nptl_flags & CLONE_CHILD_CLEARTID) {
3777 ts->child_tidptr = child_tidptr;
3778 }
3779
3780 if (nptl_flags & CLONE_SETTLS)
3781 cpu_set_tls (new_env, newtls);
3782
3783 /* Grab a mutex so that thread setup appears atomic. */
3784 pthread_mutex_lock(&clone_lock);
3785
3786 memset(&info, 0, sizeof(info));
3787 pthread_mutex_init(&info.mutex, NULL);
3788 pthread_mutex_lock(&info.mutex);
3789 pthread_cond_init(&info.cond, NULL);
3790 info.env = new_env;
3791 if (nptl_flags & CLONE_CHILD_SETTID)
3792 info.child_tidptr = child_tidptr;
3793 if (nptl_flags & CLONE_PARENT_SETTID)
3794 info.parent_tidptr = parent_tidptr;
3795
3796 ret = pthread_attr_init(&attr);
3797 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
3798 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
3799 /* It is not safe to deliver signals until the child has finished
3800 initializing, so temporarily block all signals. */
3801 sigfillset(&sigmask);
3802 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
3803
3804 ret = pthread_create(&info.thread, &attr, clone_func, &info);
3805 /* TODO: Free new CPU state if thread creation failed. */
3806
3807 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
3808 pthread_attr_destroy(&attr);
3809 if (ret == 0) {
3810 /* Wait for the child to initialize. */
3811 pthread_cond_wait(&info.cond, &info.mutex);
3812 ret = info.tid;
3813 if (flags & CLONE_PARENT_SETTID)
3814 put_user_u32(ret, parent_tidptr);
3815 } else {
3816 ret = -1;
3817 }
3818 pthread_mutex_unlock(&info.mutex);
3819 pthread_cond_destroy(&info.cond);
3820 pthread_mutex_destroy(&info.mutex);
3821 pthread_mutex_unlock(&clone_lock);
3822 #else
3823 if (flags & CLONE_NPTL_FLAGS2)
3824 return -EINVAL;
3825 /* This is probably going to die very quickly, but do it anyway. */
3826 new_stack = qemu_mallocz (NEW_STACK_SIZE);
3827 #ifdef __ia64__
3828 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env);
3829 #else
3830 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3831 #endif
3832 #endif
3833 } else {
3834 /* if no CLONE_VM, we consider it is a fork */
3835 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
3836 return -EINVAL;
3837 fork_start();
3838 ret = fork();
3839 if (ret == 0) {
3840 /* Child Process. */
3841 cpu_clone_regs(env, newsp);
3842 fork_end(1);
3843 #if defined(CONFIG_USE_NPTL)
3844 /* There is a race condition here. The parent process could
3845 theoretically read the TID in the child process before the child
3846 tid is set. This would require using either ptrace
3847 (not implemented) or having *_tidptr to point at a shared memory
3848 mapping. We can't repeat the spinlock hack used above because
3849 the child process gets its own copy of the lock. */
3850 if (flags & CLONE_CHILD_SETTID)
3851 put_user_u32(gettid(), child_tidptr);
3852 if (flags & CLONE_PARENT_SETTID)
3853 put_user_u32(gettid(), parent_tidptr);
3854 ts = (TaskState *)env->opaque;
3855 if (flags & CLONE_SETTLS)
3856 cpu_set_tls (env, newtls);
3857 if (flags & CLONE_CHILD_CLEARTID)
3858 ts->child_tidptr = child_tidptr;
3859 #endif
3860 } else {
3861 fork_end(0);
3862 }
3863 }
3864 return ret;
3865 }
3866
3867 /* warning : doesn't handle linux specific flags... */
3868 static int target_to_host_fcntl_cmd(int cmd)
3869 {
3870 switch(cmd) {
3871 case TARGET_F_DUPFD:
3872 case TARGET_F_GETFD:
3873 case TARGET_F_SETFD:
3874 case TARGET_F_GETFL:
3875 case TARGET_F_SETFL:
3876 return cmd;
3877 case TARGET_F_GETLK:
3878 return F_GETLK;
3879 case TARGET_F_SETLK:
3880 return F_SETLK;
3881 case TARGET_F_SETLKW:
3882 return F_SETLKW;
3883 case TARGET_F_GETOWN:
3884 return F_GETOWN;
3885 case TARGET_F_SETOWN:
3886 return F_SETOWN;
3887 case TARGET_F_GETSIG:
3888 return F_GETSIG;
3889 case TARGET_F_SETSIG:
3890 return F_SETSIG;
3891 #if TARGET_ABI_BITS == 32
3892 case TARGET_F_GETLK64:
3893 return F_GETLK64;
3894 case TARGET_F_SETLK64:
3895 return F_SETLK64;
3896 case TARGET_F_SETLKW64:
3897 return F_SETLKW64;
3898 #endif
3899 case TARGET_F_SETLEASE:
3900 return F_SETLEASE;
3901 case TARGET_F_GETLEASE:
3902 return F_GETLEASE;
3903 #ifdef F_DUPFD_CLOEXEC
3904 case TARGET_F_DUPFD_CLOEXEC:
3905 return F_DUPFD_CLOEXEC;
3906 #endif
3907 case TARGET_F_NOTIFY:
3908 return F_NOTIFY;
3909 default:
3910 return -TARGET_EINVAL;
3911 }
3912 return -TARGET_EINVAL;
3913 }
3914
3915 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
3916 {
3917 struct flock fl;
3918 struct target_flock *target_fl;
3919 struct flock64 fl64;
3920 struct target_flock64 *target_fl64;
3921 abi_long ret;
3922 int host_cmd = target_to_host_fcntl_cmd(cmd);
3923
3924 if (host_cmd == -TARGET_EINVAL)
3925 return host_cmd;
3926
3927 switch(cmd) {
3928 case TARGET_F_GETLK:
3929 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3930 return -TARGET_EFAULT;
3931 fl.l_type = tswap16(target_fl->l_type);
3932 fl.l_whence = tswap16(target_fl->l_whence);
3933 fl.l_start = tswapl(target_fl->l_start);
3934 fl.l_len = tswapl(target_fl->l_len);
3935 fl.l_pid = tswap32(target_fl->l_pid);
3936 unlock_user_struct(target_fl, arg, 0);
3937 ret = get_errno(fcntl(fd, host_cmd, &fl));
3938 if (ret == 0) {
3939 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
3940 return -TARGET_EFAULT;
3941 target_fl->l_type = tswap16(fl.l_type);
3942 target_fl->l_whence = tswap16(fl.l_whence);
3943 target_fl->l_start = tswapl(fl.l_start);
3944 target_fl->l_len = tswapl(fl.l_len);
3945 target_fl->l_pid = tswap32(fl.l_pid);
3946 unlock_user_struct(target_fl, arg, 1);
3947 }
3948 break;
3949
3950 case TARGET_F_SETLK:
3951 case TARGET_F_SETLKW:
3952 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3953 return -TARGET_EFAULT;
3954 fl.l_type = tswap16(target_fl->l_type);
3955 fl.l_whence = tswap16(target_fl->l_whence);
3956 fl.l_start = tswapl(target_fl->l_start);
3957 fl.l_len = tswapl(target_fl->l_len);
3958 fl.l_pid = tswap32(target_fl->l_pid);
3959 unlock_user_struct(target_fl, arg, 0);
3960 ret = get_errno(fcntl(fd, host_cmd, &fl));
3961 break;
3962
3963 case TARGET_F_GETLK64:
3964 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3965 return -TARGET_EFAULT;
3966 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3967 fl64.l_whence = tswap16(target_fl64->l_whence);
3968 fl64.l_start = tswapl(target_fl64->l_start);
3969 fl64.l_len = tswapl(target_fl64->l_len);
3970 fl64.l_pid = tswap32(target_fl64->l_pid);
3971 unlock_user_struct(target_fl64, arg, 0);
3972 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3973 if (ret == 0) {
3974 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
3975 return -TARGET_EFAULT;
3976 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
3977 target_fl64->l_whence = tswap16(fl64.l_whence);
3978 target_fl64->l_start = tswapl(fl64.l_start);
3979 target_fl64->l_len = tswapl(fl64.l_len);
3980 target_fl64->l_pid = tswap32(fl64.l_pid);
3981 unlock_user_struct(target_fl64, arg, 1);
3982 }
3983 break;
3984 case TARGET_F_SETLK64:
3985 case TARGET_F_SETLKW64:
3986 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3987 return -TARGET_EFAULT;
3988 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3989 fl64.l_whence = tswap16(target_fl64->l_whence);
3990 fl64.l_start = tswapl(target_fl64->l_start);
3991 fl64.l_len = tswapl(target_fl64->l_len);
3992 fl64.l_pid = tswap32(target_fl64->l_pid);
3993 unlock_user_struct(target_fl64, arg, 0);
3994 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3995 break;
3996
3997 case TARGET_F_GETFL:
3998 ret = get_errno(fcntl(fd, host_cmd, arg));
3999 if (ret >= 0) {
4000 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
4001 }
4002 break;
4003
4004 case TARGET_F_SETFL:
4005 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
4006 break;
4007
4008 case TARGET_F_SETOWN:
4009 case TARGET_F_GETOWN:
4010 case TARGET_F_SETSIG:
4011 case TARGET_F_GETSIG:
4012 case TARGET_F_SETLEASE:
4013 case TARGET_F_GETLEASE:
4014 ret = get_errno(fcntl(fd, host_cmd, arg));
4015 break;
4016
4017 default:
4018 ret = get_errno(fcntl(fd, cmd, arg));
4019 break;
4020 }
4021 return ret;
4022 }
4023
4024 #ifdef USE_UID16
4025
4026 static inline int high2lowuid(int uid)
4027 {
4028 if (uid > 65535)
4029 return 65534;
4030 else
4031 return uid;
4032 }
4033
4034 static inline int high2lowgid(int gid)
4035 {
4036 if (gid > 65535)
4037 return 65534;
4038 else
4039 return gid;
4040 }
4041
4042 static inline int low2highuid(int uid)
4043 {
4044 if ((int16_t)uid == -1)
4045 return -1;
4046 else
4047 return uid;
4048 }
4049
4050 static inline int low2highgid(int gid)
4051 {
4052 if ((int16_t)gid == -1)
4053 return -1;
4054 else
4055 return gid;
4056 }
4057
4058 #endif /* USE_UID16 */
4059
4060 void syscall_init(void)
4061 {
4062 IOCTLEntry *ie;
4063 const argtype *arg_type;
4064 int size;
4065 int i;
4066
4067 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
4068 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
4069 #include "syscall_types.h"
4070 #undef STRUCT
4071 #undef STRUCT_SPECIAL
4072
4073 /* we patch the ioctl size if necessary. We rely on the fact that
4074 no ioctl has all the bits at '1' in the size field */
4075 ie = ioctl_entries;
4076 while (ie->target_cmd != 0) {
4077 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4078 TARGET_IOC_SIZEMASK) {
4079 arg_type = ie->arg_type;
4080 if (arg_type[0] != TYPE_PTR) {
4081 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
4082 ie->target_cmd);
4083 exit(1);
4084 }
4085 arg_type++;
4086 size = thunk_type_size(arg_type, 0);
4087 ie->target_cmd = (ie->target_cmd &
4088 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4089 (size << TARGET_IOC_SIZESHIFT);
4090 }
4091
4092 /* Build target_to_host_errno_table[] table from
4093 * host_to_target_errno_table[]. */
4094 for (i=0; i < ERRNO_TABLE_SIZE; i++)
4095 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4096
4097 /* automatic consistency check if same arch */
4098 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4099 (defined(__x86_64__) && defined(TARGET_X86_64))
4100 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4101 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4102 ie->name, ie->target_cmd, ie->host_cmd);
4103 }
4104 #endif
4105 ie++;
4106 }
4107 }
4108
4109 #if TARGET_ABI_BITS == 32
4110 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4111 {
4112 #ifdef TARGET_WORDS_BIGENDIAN
4113 return ((uint64_t)word0 << 32) | word1;
4114 #else
4115 return ((uint64_t)word1 << 32) | word0;
4116 #endif
4117 }
4118 #else /* TARGET_ABI_BITS == 32 */
4119 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4120 {
4121 return word0;
4122 }
4123 #endif /* TARGET_ABI_BITS != 32 */
4124
4125 #ifdef TARGET_NR_truncate64
4126 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4127 abi_long arg2,
4128 abi_long arg3,
4129 abi_long arg4)
4130 {
4131 #ifdef TARGET_ARM
4132 if (((CPUARMState *)cpu_env)->eabi)
4133 {
4134 arg2 = arg3;
4135 arg3 = arg4;
4136 }
4137 #endif
4138 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4139 }
4140 #endif
4141
4142 #ifdef TARGET_NR_ftruncate64
4143 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4144 abi_long arg2,
4145 abi_long arg3,
4146 abi_long arg4)
4147 {
4148 #ifdef TARGET_ARM
4149 if (((CPUARMState *)cpu_env)->eabi)
4150 {
4151 arg2 = arg3;
4152 arg3 = arg4;
4153 }
4154 #endif
4155 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4156 }
4157 #endif
4158
4159 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4160 abi_ulong target_addr)
4161 {
4162 struct target_timespec *target_ts;
4163
4164 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4165 return -TARGET_EFAULT;
4166 host_ts->tv_sec = tswapl(target_ts->tv_sec);
4167 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
4168 unlock_user_struct(target_ts, target_addr, 0);
4169 return 0;
4170 }
4171
4172 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4173 struct timespec *host_ts)
4174 {
4175 struct target_timespec *target_ts;
4176
4177 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4178 return -TARGET_EFAULT;
4179 target_ts->tv_sec = tswapl(host_ts->tv_sec);
4180 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
4181 unlock_user_struct(target_ts, target_addr, 1);
4182 return 0;
4183 }
4184
4185 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
4186 static inline abi_long host_to_target_stat64(void *cpu_env,
4187 abi_ulong target_addr,
4188 struct stat *host_st)
4189 {
4190 #ifdef TARGET_ARM
4191 if (((CPUARMState *)cpu_env)->eabi) {
4192 struct target_eabi_stat64 *target_st;
4193
4194 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4195 return -TARGET_EFAULT;
4196 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4197 __put_user(host_st->st_dev, &target_st->st_dev);
4198 __put_user(host_st->st_ino, &target_st->st_ino);
4199 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4200 __put_user(host_st->st_ino, &target_st->__st_ino);
4201 #endif
4202 __put_user(host_st->st_mode, &target_st->st_mode);
4203 __put_user(host_st->st_nlink, &target_st->st_nlink);
4204 __put_user(host_st->st_uid, &target_st->st_uid);
4205 __put_user(host_st->st_gid, &target_st->st_gid);
4206 __put_user(host_st->st_rdev, &target_st->st_rdev);
4207 __put_user(host_st->st_size, &target_st->st_size);
4208 __put_user(host_st->st_blksize, &target_st->st_blksize);
4209 __put_user(host_st->st_blocks, &target_st->st_blocks);
4210 __put_user(host_st->st_atime, &target_st->target_st_atime);
4211 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4212 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4213 unlock_user_struct(target_st, target_addr, 1);
4214 } else
4215 #endif
4216 {
4217 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
4218 struct target_stat *target_st;
4219 #else
4220 struct target_stat64 *target_st;
4221 #endif
4222
4223 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4224 return -TARGET_EFAULT;
4225 memset(target_st, 0, sizeof(*target_st));
4226 __put_user(host_st->st_dev, &target_st->st_dev);
4227 __put_user(host_st->st_ino, &target_st->st_ino);
4228 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4229 __put_user(host_st->st_ino, &target_st->__st_ino);
4230 #endif
4231 __put_user(host_st->st_mode, &target_st->st_mode);
4232 __put_user(host_st->st_nlink, &target_st->st_nlink);
4233 __put_user(host_st->st_uid, &target_st->st_uid);
4234 __put_user(host_st->st_gid, &target_st->st_gid);
4235 __put_user(host_st->st_rdev, &target_st->st_rdev);
4236 /* XXX: better use of kernel struct */
4237 __put_user(host_st->st_size, &target_st->st_size);
4238 __put_user(host_st->st_blksize, &target_st->st_blksize);
4239 __put_user(host_st->st_blocks, &target_st->st_blocks);
4240 __put_user(host_st->st_atime, &target_st->target_st_atime);
4241 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4242 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4243 unlock_user_struct(target_st, target_addr, 1);
4244 }
4245
4246 return 0;
4247 }
4248 #endif
4249
4250 #if defined(CONFIG_USE_NPTL)
4251 /* ??? Using host futex calls even when target atomic operations
4252 are not really atomic probably breaks things. However implementing
4253 futexes locally would make futexes shared between multiple processes
4254 tricky. However they're probably useless because guest atomic
4255 operations won't work either. */
4256 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4257 target_ulong uaddr2, int val3)
4258 {
4259 struct timespec ts, *pts;
4260 int base_op;
4261
4262 /* ??? We assume FUTEX_* constants are the same on both host
4263 and target. */
4264 #ifdef FUTEX_CMD_MASK
4265 base_op = op & FUTEX_CMD_MASK;
4266 #else
4267 base_op = op;
4268 #endif
4269 switch (base_op) {
4270 case FUTEX_WAIT:
4271 if (timeout) {
4272 pts = &ts;
4273 target_to_host_timespec(pts, timeout);
4274 } else {
4275 pts = NULL;
4276 }
4277 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4278 pts, NULL, 0));
4279 case FUTEX_WAKE:
4280 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4281 case FUTEX_FD:
4282 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4283 case FUTEX_REQUEUE:
4284 case FUTEX_CMP_REQUEUE:
4285 case FUTEX_WAKE_OP:
4286 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4287 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4288 But the prototype takes a `struct timespec *'; insert casts
4289 to satisfy the compiler. We do not need to tswap TIMEOUT
4290 since it's not compared to guest memory. */
4291 pts = (struct timespec *)(uintptr_t) timeout;
4292 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4293 g2h(uaddr2),
4294 (base_op == FUTEX_CMP_REQUEUE
4295 ? tswap32(val3)
4296 : val3)));
4297 default:
4298 return -TARGET_ENOSYS;
4299 }
4300 }
4301 #endif
4302
4303 /* Map host to target signal numbers for the wait family of syscalls.
4304 Assume all other status bits are the same. */
4305 static int host_to_target_waitstatus(int status)
4306 {
4307 if (WIFSIGNALED(status)) {
4308 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4309 }
4310 if (WIFSTOPPED(status)) {
4311 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4312 | (status & 0xff);
4313 }
4314 return status;
4315 }
4316
4317 int get_osversion(void)
4318 {
4319 static int osversion;
4320 struct new_utsname buf;
4321 const char *s;
4322 int i, n, tmp;
4323 if (osversion)
4324 return osversion;
4325 if (qemu_uname_release && *qemu_uname_release) {
4326 s = qemu_uname_release;
4327 } else {
4328 if (sys_uname(&buf))
4329 return 0;
4330 s = buf.release;
4331 }
4332 tmp = 0;
4333 for (i = 0; i < 3; i++) {
4334 n = 0;
4335 while (*s >= '0' && *s <= '9') {
4336 n *= 10;
4337 n += *s - '0';
4338 s++;
4339 }
4340 tmp = (tmp << 8) + n;
4341 if (*s == '.')
4342 s++;
4343 }
4344 osversion = tmp;
4345 return osversion;
4346 }
4347
4348 /* do_syscall() should always have a single exit point at the end so
4349 that actions, such as logging of syscall results, can be performed.
4350 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4351 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4352 abi_long arg2, abi_long arg3, abi_long arg4,
4353 abi_long arg5, abi_long arg6)
4354 {
4355 abi_long ret;
4356 struct stat st;
4357 struct statfs stfs;
4358 void *p;
4359
4360 #ifdef DEBUG
4361 gemu_log("syscall %d", num);
4362 #endif
4363 if(do_strace)
4364 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4365
4366 switch(num) {
4367 case TARGET_NR_exit:
4368 #ifdef CONFIG_USE_NPTL
4369 /* In old applications this may be used to implement _exit(2).
4370 However in threaded applictions it is used for thread termination,
4371 and _exit_group is used for application termination.
4372 Do thread termination if we have more then one thread. */
4373 /* FIXME: This probably breaks if a signal arrives. We should probably
4374 be disabling signals. */
4375 if (first_cpu->next_cpu) {
4376 TaskState *ts;
4377 CPUState **lastp;
4378 CPUState *p;
4379
4380 cpu_list_lock();
4381 lastp = &first_cpu;
4382 p = first_cpu;
4383 while (p && p != (CPUState *)cpu_env) {
4384 lastp = &p->next_cpu;
4385 p = p->next_cpu;
4386 }
4387 /* If we didn't find the CPU for this thread then something is
4388 horribly wrong. */
4389 if (!p)
4390 abort();
4391 /* Remove the CPU from the list. */
4392 *lastp = p->next_cpu;
4393 cpu_list_unlock();
4394 ts = ((CPUState *)cpu_env)->opaque;
4395 if (ts->child_tidptr) {
4396 put_user_u32(0, ts->child_tidptr);
4397 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4398 NULL, NULL, 0);
4399 }
4400 thread_env = NULL;
4401 qemu_free(cpu_env);
4402 qemu_free(ts);
4403 pthread_exit(NULL);
4404 }
4405 #endif
4406 #ifdef TARGET_GPROF
4407 _mcleanup();
4408 #endif
4409 gdb_exit(cpu_env, arg1);
4410 _exit(arg1);
4411 ret = 0; /* avoid warning */
4412 break;
4413 case TARGET_NR_read:
4414 if (arg3 == 0)
4415 ret = 0;
4416 else {
4417 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4418 goto efault;
4419 ret = get_errno(read(arg1, p, arg3));
4420 unlock_user(p, arg2, ret);
4421 }
4422 break;
4423 case TARGET_NR_write:
4424 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4425 goto efault;
4426 ret = get_errno(write(arg1, p, arg3));
4427 unlock_user(p, arg2, 0);
4428 break;
4429 case TARGET_NR_open:
4430 if (!(p = lock_user_string(arg1)))
4431 goto efault;
4432 ret = get_errno(open(path(p),
4433 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4434 arg3));
4435 unlock_user(p, arg1, 0);
4436 break;
4437 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4438 case TARGET_NR_openat:
4439 if (!(p = lock_user_string(arg2)))
4440 goto efault;
4441 ret = get_errno(sys_openat(arg1,
4442 path(p),
4443 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4444 arg4));
4445 unlock_user(p, arg2, 0);
4446 break;
4447 #endif
4448 case TARGET_NR_close:
4449 ret = get_errno(close(arg1));
4450 break;
4451 case TARGET_NR_brk:
4452 ret = do_brk(arg1);
4453 break;
4454 case TARGET_NR_fork:
4455 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4456 break;
4457 #ifdef TARGET_NR_waitpid
4458 case TARGET_NR_waitpid:
4459 {
4460 int status;
4461 ret = get_errno(waitpid(arg1, &status, arg3));
4462 if (!is_error(ret) && arg2
4463 && put_user_s32(host_to_target_waitstatus(status), arg2))
4464 goto efault;
4465 }
4466 break;
4467 #endif
4468 #ifdef TARGET_NR_waitid
4469 case TARGET_NR_waitid:
4470 {
4471 siginfo_t info;
4472 info.si_pid = 0;
4473 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4474 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4475 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4476 goto efault;
4477 host_to_target_siginfo(p, &info);
4478 unlock_user(p, arg3, sizeof(target_siginfo_t));
4479 }
4480 }
4481 break;
4482 #endif
4483 #ifdef TARGET_NR_creat /* not on alpha */
4484 case TARGET_NR_creat:
4485 if (!(p = lock_user_string(arg1)))
4486 goto efault;
4487 ret = get_errno(creat(p, arg2));
4488 unlock_user(p, arg1, 0);
4489 break;
4490 #endif
4491 case TARGET_NR_link:
4492 {
4493 void * p2;
4494 p = lock_user_string(arg1);
4495 p2 = lock_user_string(arg2);
4496 if (!p || !p2)
4497 ret = -TARGET_EFAULT;
4498 else
4499 ret = get_errno(link(p, p2));
4500 unlock_user(p2, arg2, 0);
4501 unlock_user(p, arg1, 0);
4502 }
4503 break;
4504 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4505 case TARGET_NR_linkat:
4506 {
4507 void * p2 = NULL;
4508 if (!arg2 || !arg4)
4509 goto efault;
4510 p = lock_user_string(arg2);
4511 p2 = lock_user_string(arg4);
4512 if (!p || !p2)
4513 ret = -TARGET_EFAULT;
4514 else
4515 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4516 unlock_user(p, arg2, 0);
4517 unlock_user(p2, arg4, 0);
4518 }
4519 break;
4520 #endif
4521 case TARGET_NR_unlink:
4522 if (!(p = lock_user_string(arg1)))
4523 goto efault;
4524 ret = get_errno(unlink(p));
4525 unlock_user(p, arg1, 0);
4526 break;
4527 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4528 case TARGET_NR_unlinkat:
4529 if (!(p = lock_user_string(arg2)))
4530 goto efault;
4531 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4532 unlock_user(p, arg2, 0);
4533 break;
4534 #endif
4535 case TARGET_NR_execve:
4536 {
4537 char **argp, **envp;
4538 int argc, envc;
4539 abi_ulong gp;
4540 abi_ulong guest_argp;
4541 abi_ulong guest_envp;
4542 abi_ulong addr;
4543 char **q;
4544
4545 argc = 0;
4546 guest_argp = arg2;
4547 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4548 if (get_user_ual(addr, gp))
4549 goto efault;
4550 if (!addr)
4551 break;
4552 argc++;
4553 }
4554 envc = 0;
4555 guest_envp = arg3;
4556 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4557 if (get_user_ual(addr, gp))
4558 goto efault;
4559 if (!addr)
4560 break;
4561 envc++;
4562 }
4563
4564 argp = alloca((argc + 1) * sizeof(void *));
4565 envp = alloca((envc + 1) * sizeof(void *));
4566
4567 for (gp = guest_argp, q = argp; gp;
4568 gp += sizeof(abi_ulong), q++) {
4569 if (get_user_ual(addr, gp))
4570 goto execve_efault;
4571 if (!addr)
4572 break;
4573 if (!(*q = lock_user_string(addr)))
4574 goto execve_efault;
4575 }
4576 *q = NULL;
4577
4578 for (gp = guest_envp, q = envp; gp;
4579 gp += sizeof(abi_ulong), q++) {
4580 if (get_user_ual(addr, gp))
4581 goto execve_efault;
4582 if (!addr)
4583 break;
4584 if (!(*q = lock_user_string(addr)))
4585 goto execve_efault;
4586 }
4587 *q = NULL;
4588
4589 if (!(p = lock_user_string(arg1)))
4590 goto execve_efault;
4591 ret = get_errno(execve(p, argp, envp));
4592 unlock_user(p, arg1, 0);
4593
4594 goto execve_end;
4595
4596 execve_efault:
4597 ret = -TARGET_EFAULT;
4598
4599 execve_end:
4600 for (gp = guest_argp, q = argp; *q;
4601 gp += sizeof(abi_ulong), q++) {
4602 if (get_user_ual(addr, gp)
4603 || !addr)
4604 break;
4605 unlock_user(*q, addr, 0);
4606 }
4607 for (gp = guest_envp, q = envp; *q;
4608 gp += sizeof(abi_ulong), q++) {
4609 if (get_user_ual(addr, gp)
4610 || !addr)
4611 break;
4612 unlock_user(*q, addr, 0);
4613 }
4614 }
4615 break;
4616 case TARGET_NR_chdir:
4617 if (!(p = lock_user_string(arg1)))
4618 goto efault;
4619 ret = get_errno(chdir(p));
4620 unlock_user(p, arg1, 0);
4621 break;
4622 #ifdef TARGET_NR_time
4623 case TARGET_NR_time:
4624 {
4625 time_t host_time;
4626 ret = get_errno(time(&host_time));
4627 if (!is_error(ret)
4628 && arg1
4629 && put_user_sal(host_time, arg1))
4630 goto efault;
4631 }
4632 break;
4633 #endif
4634 case TARGET_NR_mknod:
4635 if (!(p = lock_user_string(arg1)))
4636 goto efault;
4637 ret = get_errno(mknod(p, arg2, arg3));
4638 unlock_user(p, arg1, 0);
4639 break;
4640 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4641 case TARGET_NR_mknodat:
4642 if (!(p = lock_user_string(arg2)))
4643 goto efault;
4644 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4645 unlock_user(p, arg2, 0);
4646 break;
4647 #endif
4648 case TARGET_NR_chmod:
4649 if (!(p = lock_user_string(arg1)))
4650 goto efault;
4651 ret = get_errno(chmod(p, arg2));
4652 unlock_user(p, arg1, 0);
4653 break;
4654 #ifdef TARGET_NR_break
4655 case TARGET_NR_break:
4656 goto unimplemented;
4657 #endif
4658 #ifdef TARGET_NR_oldstat
4659 case TARGET_NR_oldstat:
4660 goto unimplemented;
4661 #endif
4662 case TARGET_NR_lseek:
4663 ret = get_errno(lseek(arg1, arg2, arg3));
4664 break;
4665 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
4666 /* Alpha specific */
4667 case TARGET_NR_getxpid:
4668 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
4669 ret = get_errno(getpid());
4670 break;
4671 #endif
4672 #ifdef TARGET_NR_getpid
4673 case TARGET_NR_getpid:
4674 ret = get_errno(getpid());
4675 break;
4676 #endif
4677 case TARGET_NR_mount:
4678 {
4679 /* need to look at the data field */
4680 void *p2, *p3;
4681 p = lock_user_string(arg1);
4682 p2 = lock_user_string(arg2);
4683 p3 = lock_user_string(arg3);
4684 if (!p || !p2 || !p3)
4685 ret = -TARGET_EFAULT;
4686 else {
4687 /* FIXME - arg5 should be locked, but it isn't clear how to
4688 * do that since it's not guaranteed to be a NULL-terminated
4689 * string.
4690 */
4691 if ( ! arg5 )
4692 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
4693 else
4694 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4695 }
4696 unlock_user(p, arg1, 0);
4697 unlock_user(p2, arg2, 0);
4698 unlock_user(p3, arg3, 0);
4699 break;
4700 }
4701 #ifdef TARGET_NR_umount
4702 case TARGET_NR_umount:
4703 if (!(p = lock_user_string(arg1)))
4704 goto efault;
4705 ret = get_errno(umount(p));
4706 unlock_user(p, arg1, 0);
4707 break;
4708 #endif
4709 #ifdef TARGET_NR_stime /* not on alpha */
4710 case TARGET_NR_stime:
4711 {
4712 time_t host_time;
4713 if (get_user_sal(host_time, arg1))
4714 goto efault;
4715 ret = get_errno(stime(&host_time));
4716 }
4717 break;
4718 #endif
4719 case TARGET_NR_ptrace:
4720 goto unimplemented;
4721 #ifdef TARGET_NR_alarm /* not on alpha */
4722 case TARGET_NR_alarm:
4723 ret = alarm(arg1);
4724 break;
4725 #endif
4726 #ifdef TARGET_NR_oldfstat
4727 case TARGET_NR_oldfstat:
4728 goto unimplemented;
4729 #endif
4730 #ifdef TARGET_NR_pause /* not on alpha */
4731 case TARGET_NR_pause:
4732 ret = get_errno(pause());
4733 break;
4734 #endif
4735 #ifdef TARGET_NR_utime
4736 case TARGET_NR_utime:
4737 {
4738 struct utimbuf tbuf, *host_tbuf;
4739 struct target_utimbuf *target_tbuf;
4740 if (arg2) {
4741 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4742 goto efault;
4743 tbuf.actime = tswapl(target_tbuf->actime);
4744 tbuf.modtime = tswapl(target_tbuf->modtime);
4745 unlock_user_struct(target_tbuf, arg2, 0);
4746 host_tbuf = &tbuf;
4747 } else {
4748 host_tbuf = NULL;
4749 }
4750 if (!(p = lock_user_string(arg1)))
4751 goto efault;
4752 ret = get_errno(utime(p, host_tbuf));
4753 unlock_user(p, arg1, 0);
4754 }
4755 break;
4756 #endif
4757 case TARGET_NR_utimes:
4758 {
4759 struct timeval *tvp, tv[2];
4760 if (arg2) {
4761 if (copy_from_user_timeval(&tv[0], arg2)
4762 || copy_from_user_timeval(&tv[1],
4763 arg2 + sizeof(struct target_timeval)))
4764 goto efault;
4765 tvp = tv;
4766 } else {
4767 tvp = NULL;
4768 }
4769 if (!(p = lock_user_string(arg1)))
4770 goto efault;
4771 ret = get_errno(utimes(p, tvp));
4772 unlock_user(p, arg1, 0);
4773 }
4774 break;
4775 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
4776 case TARGET_NR_futimesat:
4777 {
4778 struct timeval *tvp, tv[2];
4779 if (arg3) {
4780 if (copy_from_user_timeval(&tv[0], arg3)
4781 || copy_from_user_timeval(&tv[1],
4782 arg3 + sizeof(struct target_timeval)))
4783 goto efault;
4784 tvp = tv;
4785 } else {
4786 tvp = NULL;
4787 }
4788 if (!(p = lock_user_string(arg2)))
4789 goto efault;
4790 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
4791 unlock_user(p, arg2, 0);
4792 }
4793 break;
4794 #endif
4795 #ifdef TARGET_NR_stty
4796 case TARGET_NR_stty:
4797 goto unimplemented;
4798 #endif
4799 #ifdef TARGET_NR_gtty
4800 case TARGET_NR_gtty:
4801 goto unimplemented;
4802 #endif
4803 case TARGET_NR_access:
4804 if (!(p = lock_user_string(arg1)))
4805 goto efault;
4806 ret = get_errno(access(path(p), arg2));
4807 unlock_user(p, arg1, 0);
4808 break;
4809 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
4810 case TARGET_NR_faccessat:
4811 if (!(p = lock_user_string(arg2)))
4812 goto efault;
4813 ret = get_errno(sys_faccessat(arg1, p, arg3));
4814 unlock_user(p, arg2, 0);
4815 break;
4816 #endif
4817 #ifdef TARGET_NR_nice /* not on alpha */
4818 case TARGET_NR_nice:
4819 ret = get_errno(nice(arg1));
4820 break;
4821 #endif
4822 #ifdef TARGET_NR_ftime
4823 case TARGET_NR_ftime:
4824 goto unimplemented;
4825 #endif
4826 case TARGET_NR_sync:
4827 sync();
4828 ret = 0;
4829 break;
4830 case TARGET_NR_kill:
4831 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
4832 break;
4833 case TARGET_NR_rename:
4834 {
4835 void *p2;
4836 p = lock_user_string(arg1);
4837 p2 = lock_user_string(arg2);
4838 if (!p || !p2)
4839 ret = -TARGET_EFAULT;
4840 else
4841 ret = get_errno(rename(p, p2));
4842 unlock_user(p2, arg2, 0);
4843 unlock_user(p, arg1, 0);
4844 }
4845 break;
4846 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
4847 case TARGET_NR_renameat:
4848 {
4849 void *p2;
4850 p = lock_user_string(arg2);
4851 p2 = lock_user_string(arg4);
4852 if (!p || !p2)
4853 ret = -TARGET_EFAULT;
4854 else
4855 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
4856 unlock_user(p2, arg4, 0);
4857 unlock_user(p, arg2, 0);
4858 }
4859 break;
4860 #endif
4861 case TARGET_NR_mkdir:
4862 if (!(p = lock_user_string(arg1)))
4863 goto efault;
4864 ret = get_errno(mkdir(p, arg2));
4865 unlock_user(p, arg1, 0);
4866 break;
4867 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
4868 case TARGET_NR_mkdirat:
4869 if (!(p = lock_user_string(arg2)))
4870 goto efault;
4871 ret = get_errno(sys_mkdirat(arg1, p, arg3));
4872 unlock_user(p, arg2, 0);
4873 break;
4874 #endif
4875 case TARGET_NR_rmdir:
4876 if (!(p = lock_user_string(arg1)))
4877 goto efault;
4878 ret = get_errno(rmdir(p));
4879 unlock_user(p, arg1, 0);
4880 break;
4881 case TARGET_NR_dup:
4882 ret = get_errno(dup(arg1));
4883 break;
4884 case TARGET_NR_pipe:
4885 ret = do_pipe(cpu_env, arg1, 0, 0);
4886 break;
4887 #ifdef TARGET_NR_pipe2
4888 case TARGET_NR_pipe2:
4889 ret = do_pipe(cpu_env, arg1, arg2, 1);
4890 break;
4891 #endif
4892 case TARGET_NR_times:
4893 {
4894 struct target_tms *tmsp;
4895 struct tms tms;
4896 ret = get_errno(times(&tms));
4897 if (arg1) {
4898 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
4899 if (!tmsp)
4900 goto efault;
4901 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
4902 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
4903 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
4904 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
4905 }
4906 if (!is_error(ret))
4907 ret = host_to_target_clock_t(ret);
4908 }
4909 break;
4910 #ifdef TARGET_NR_prof
4911 case TARGET_NR_prof:
4912 goto unimplemented;
4913 #endif
4914 #ifdef TARGET_NR_signal
4915 case TARGET_NR_signal:
4916 goto unimplemented;
4917 #endif
4918 case TARGET_NR_acct:
4919 if (arg1 == 0) {
4920 ret = get_errno(acct(NULL));
4921 } else {
4922 if (!(p = lock_user_string(arg1)))
4923 goto efault;
4924 ret = get_errno(acct(path(p)));
4925 unlock_user(p, arg1, 0);
4926 }
4927 break;
4928 #ifdef TARGET_NR_umount2 /* not on alpha */
4929 case TARGET_NR_umount2:
4930 if (!(p = lock_user_string(arg1)))
4931 goto efault;
4932 ret = get_errno(umount2(p, arg2));
4933 unlock_user(p, arg1, 0);
4934 break;
4935 #endif
4936 #ifdef TARGET_NR_lock
4937 case TARGET_NR_lock:
4938 goto unimplemented;
4939 #endif
4940 case TARGET_NR_ioctl:
4941 ret = do_ioctl(arg1, arg2, arg3);
4942 break;
4943 case TARGET_NR_fcntl:
4944 ret = do_fcntl(arg1, arg2, arg3);
4945 break;
4946 #ifdef TARGET_NR_mpx
4947 case TARGET_NR_mpx:
4948 goto unimplemented;
4949 #endif
4950 case TARGET_NR_setpgid:
4951 ret = get_errno(setpgid(arg1, arg2));
4952 break;
4953 #ifdef TARGET_NR_ulimit
4954 case TARGET_NR_ulimit:
4955 goto unimplemented;
4956 #endif
4957 #ifdef TARGET_NR_oldolduname
4958 case TARGET_NR_oldolduname:
4959 goto unimplemented;
4960 #endif
4961 case TARGET_NR_umask:
4962 ret = get_errno(umask(arg1));
4963 break;
4964 case TARGET_NR_chroot:
4965 if (!(p = lock_user_string(arg1)))
4966 goto efault;
4967 ret = get_errno(chroot(p));
4968 unlock_user(p, arg1, 0);
4969 break;
4970 case TARGET_NR_ustat:
4971 goto unimplemented;
4972 case TARGET_NR_dup2:
4973 ret = get_errno(dup2(arg1, arg2));
4974 break;
4975 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
4976 case TARGET_NR_dup3:
4977 ret = get_errno(dup3(arg1, arg2, arg3));
4978 break;
4979 #endif
4980 #ifdef TARGET_NR_getppid /* not on alpha */
4981 case TARGET_NR_getppid:
4982 ret = get_errno(getppid());
4983 break;
4984 #endif
4985 case TARGET_NR_getpgrp:
4986 ret = get_errno(getpgrp());
4987 break;
4988 case TARGET_NR_setsid:
4989 ret = get_errno(setsid());
4990 break;
4991 #ifdef TARGET_NR_sigaction
4992 case TARGET_NR_sigaction:
4993 {
4994 #if defined(TARGET_ALPHA)
4995 struct target_sigaction act, oact, *pact = 0;
4996 struct target_old_sigaction *old_act;
4997 if (arg2) {
4998 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
4999 goto efault;
5000 act._sa_handler = old_act->_sa_handler;
5001 target_siginitset(&act.sa_mask, old_act->sa_mask);
5002 act.sa_flags = old_act->sa_flags;
5003 act.sa_restorer = 0;
5004 unlock_user_struct(old_act, arg2, 0);
5005 pact = &act;
5006 }
5007 ret = get_errno(do_sigaction(arg1, pact, &oact));
5008 if (!is_error(ret) && arg3) {
5009 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5010 goto efault;
5011 old_act->_sa_handler = oact._sa_handler;
5012 old_act->sa_mask = oact.sa_mask.sig[0];
5013 old_act->sa_flags = oact.sa_flags;
5014 unlock_user_struct(old_act, arg3, 1);
5015 }
5016 #elif defined(TARGET_MIPS)
5017 struct target_sigaction act, oact, *pact, *old_act;
5018
5019 if (arg2) {
5020 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5021 goto efault;
5022 act._sa_handler = old_act->_sa_handler;
5023 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5024 act.sa_flags = old_act->sa_flags;
5025 unlock_user_struct(old_act, arg2, 0);
5026 pact = &act;
5027 } else {
5028 pact = NULL;
5029 }
5030
5031 ret = get_errno(do_sigaction(arg1, pact, &oact));
5032
5033 if (!is_error(ret) && arg3) {
5034 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5035 goto efault;
5036 old_act->_sa_handler = oact._sa_handler;
5037 old_act->sa_flags = oact.sa_flags;
5038 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5039 old_act->sa_mask.sig[1] = 0;
5040 old_act->sa_mask.sig[2] = 0;
5041 old_act->sa_mask.sig[3] = 0;
5042 unlock_user_struct(old_act, arg3, 1);
5043 }
5044 #else
5045 struct target_old_sigaction *old_act;
5046 struct target_sigaction act, oact, *pact;
5047 if (arg2) {
5048 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5049 goto efault;
5050 act._sa_handler = old_act->_sa_handler;
5051 target_siginitset(&act.sa_mask, old_act->sa_mask);
5052 act.sa_flags = old_act->sa_flags;
5053 act.sa_restorer = old_act->sa_restorer;
5054 unlock_user_struct(old_act, arg2, 0);
5055 pact = &act;
5056 } else {
5057 pact = NULL;
5058 }
5059 ret = get_errno(do_sigaction(arg1, pact, &oact));
5060 if (!is_error(ret) && arg3) {
5061 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5062 goto efault;
5063 old_act->_sa_handler = oact._sa_handler;
5064 old_act->sa_mask = oact.sa_mask.sig[0];
5065 old_act->sa_flags = oact.sa_flags;
5066 old_act->sa_restorer = oact.sa_restorer;
5067 unlock_user_struct(old_act, arg3, 1);
5068 }
5069 #endif
5070 }
5071 break;
5072 #endif
5073 case TARGET_NR_rt_sigaction:
5074 {
5075 #if defined(TARGET_ALPHA)
5076 struct target_sigaction act, oact, *pact = 0;
5077 struct target_rt_sigaction *rt_act;
5078 /* ??? arg4 == sizeof(sigset_t). */
5079 if (arg2) {
5080 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5081 goto efault;
5082 act._sa_handler = rt_act->_sa_handler;
5083 act.sa_mask = rt_act->sa_mask;
5084 act.sa_flags = rt_act->sa_flags;
5085 act.sa_restorer = arg5;
5086 unlock_user_struct(rt_act, arg2, 0);
5087 pact = &act;
5088 }
5089 ret = get_errno(do_sigaction(arg1, pact, &oact));
5090 if (!is_error(ret) && arg3) {
5091 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5092 goto efault;
5093 rt_act->_sa_handler = oact._sa_handler;
5094 rt_act->sa_mask = oact.sa_mask;
5095 rt_act->sa_flags = oact.sa_flags;
5096 unlock_user_struct(rt_act, arg3, 1);
5097 }
5098 #else
5099 struct target_sigaction *act;
5100 struct target_sigaction *oact;
5101
5102 if (arg2) {
5103 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5104 goto efault;
5105 } else
5106 act = NULL;
5107 if (arg3) {
5108 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5109 ret = -TARGET_EFAULT;
5110 goto rt_sigaction_fail;
5111 }
5112 } else
5113 oact = NULL;
5114 ret = get_errno(do_sigaction(arg1, act, oact));
5115 rt_sigaction_fail:
5116 if (act)
5117 unlock_user_struct(act, arg2, 0);
5118 if (oact)
5119 unlock_user_struct(oact, arg3, 1);
5120 #endif
5121 }
5122 break;
5123 #ifdef TARGET_NR_sgetmask /* not on alpha */
5124 case TARGET_NR_sgetmask:
5125 {
5126 sigset_t cur_set;
5127 abi_ulong target_set;
5128 sigprocmask(0, NULL, &cur_set);
5129 host_to_target_old_sigset(&target_set, &cur_set);
5130 ret = target_set;
5131 }
5132 break;
5133 #endif
5134 #ifdef TARGET_NR_ssetmask /* not on alpha */
5135 case TARGET_NR_ssetmask:
5136 {
5137 sigset_t set, oset, cur_set;
5138 abi_ulong target_set = arg1;
5139 sigprocmask(0, NULL, &cur_set);
5140 target_to_host_old_sigset(&set, &target_set);
5141 sigorset(&set, &set, &cur_set);
5142 sigprocmask(SIG_SETMASK, &set, &oset);
5143 host_to_target_old_sigset(&target_set, &oset);
5144 ret = target_set;
5145 }
5146 break;
5147 #endif
5148 #ifdef TARGET_NR_sigprocmask
5149 case TARGET_NR_sigprocmask:
5150 {
5151 #if defined(TARGET_ALPHA)
5152 sigset_t set, oldset;
5153 abi_ulong mask;
5154 int how;
5155
5156 switch (arg1) {
5157 case TARGET_SIG_BLOCK:
5158 how = SIG_BLOCK;
5159 break;
5160 case TARGET_SIG_UNBLOCK:
5161 how = SIG_UNBLOCK;
5162 break;
5163 case TARGET_SIG_SETMASK:
5164 how = SIG_SETMASK;
5165 break;
5166 default:
5167 ret = -TARGET_EINVAL;
5168 goto fail;
5169 }
5170 mask = arg2;
5171 target_to_host_old_sigset(&set, &mask);
5172
5173 ret = get_errno(sigprocmask(how, &set, &oldset));
5174
5175 if (!is_error(ret)) {
5176 host_to_target_old_sigset(&mask, &oldset);
5177 ret = mask;
5178 ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */
5179 }
5180 #else
5181 sigset_t set, oldset, *set_ptr;
5182 int how;
5183
5184 if (arg2) {
5185 switch (arg1) {
5186 case TARGET_SIG_BLOCK:
5187 how = SIG_BLOCK;
5188 break;
5189 case TARGET_SIG_UNBLOCK:
5190 how = SIG_UNBLOCK;
5191 break;
5192 case TARGET_SIG_SETMASK:
5193 how = SIG_SETMASK;
5194 break;
5195 default:
5196 ret = -TARGET_EINVAL;
5197 goto fail;
5198 }
5199 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5200 goto efault;
5201 target_to_host_old_sigset(&set, p);
5202 unlock_user(p, arg2, 0);
5203 set_ptr = &set;
5204 } else {
5205 how = 0;
5206 set_ptr = NULL;
5207 }
5208 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5209 if (!is_error(ret) && arg3) {
5210 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5211 goto efault;
5212 host_to_target_old_sigset(p, &oldset);
5213 unlock_user(p, arg3, sizeof(target_sigset_t));
5214 }
5215 #endif
5216 }
5217 break;
5218 #endif
5219 case TARGET_NR_rt_sigprocmask:
5220 {
5221 int how = arg1;
5222 sigset_t set, oldset, *set_ptr;
5223
5224 if (arg2) {
5225 switch(how) {
5226 case TARGET_SIG_BLOCK:
5227 how = SIG_BLOCK;
5228 break;
5229 case TARGET_SIG_UNBLOCK:
5230 how = SIG_UNBLOCK;
5231 break;
5232 case TARGET_SIG_SETMASK:
5233 how = SIG_SETMASK;
5234 break;
5235 default:
5236 ret = -TARGET_EINVAL;
5237 goto fail;
5238 }
5239 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5240 goto efault;
5241 target_to_host_sigset(&set, p);
5242 unlock_user(p, arg2, 0);
5243 set_ptr = &set;
5244 } else {
5245 how = 0;
5246 set_ptr = NULL;
5247 }
5248 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5249 if (!is_error(ret) && arg3) {
5250 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5251 goto efault;
5252 host_to_target_sigset(p, &oldset);
5253 unlock_user(p, arg3, sizeof(target_sigset_t));
5254 }
5255 }
5256 break;
5257 #ifdef TARGET_NR_sigpending
5258 case TARGET_NR_sigpending:
5259 {
5260 sigset_t set;
5261 ret = get_errno(sigpending(&set));
5262 if (!is_error(ret)) {
5263 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5264 goto efault;
5265 host_to_target_old_sigset(p, &set);
5266 unlock_user(p, arg1, sizeof(target_sigset_t));
5267 }
5268 }
5269 break;
5270 #endif
5271 case TARGET_NR_rt_sigpending:
5272 {
5273 sigset_t set;
5274 ret = get_errno(sigpending(&set));
5275 if (!is_error(ret)) {
5276 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5277 goto efault;
5278 host_to_target_sigset(p, &set);
5279 unlock_user(p, arg1, sizeof(target_sigset_t));
5280 }
5281 }
5282 break;
5283 #ifdef TARGET_NR_sigsuspend
5284 case TARGET_NR_sigsuspend:
5285 {
5286 sigset_t set;
5287 #if defined(TARGET_ALPHA)
5288 abi_ulong mask = arg1;
5289 target_to_host_old_sigset(&set, &mask);
5290 #else
5291 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5292 goto efault;
5293 target_to_host_old_sigset(&set, p);
5294 unlock_user(p, arg1, 0);
5295 #endif
5296 ret = get_errno(sigsuspend(&set));
5297 }
5298 break;
5299 #endif
5300 case TARGET_NR_rt_sigsuspend:
5301 {
5302 sigset_t set;
5303 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5304 goto efault;
5305 target_to_host_sigset(&set, p);
5306 unlock_user(p, arg1, 0);
5307 ret = get_errno(sigsuspend(&set));
5308 }
5309 break;
5310 case TARGET_NR_rt_sigtimedwait:
5311 {
5312 sigset_t set;
5313 struct timespec uts, *puts;
5314 siginfo_t uinfo;
5315
5316 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5317 goto efault;
5318 target_to_host_sigset(&set, p);
5319 unlock_user(p, arg1, 0);
5320 if (arg3) {
5321 puts = &uts;
5322 target_to_host_timespec(puts, arg3);
5323 } else {
5324 puts = NULL;
5325 }
5326 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5327 if (!is_error(ret) && arg2) {
5328 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5329 goto efault;
5330 host_to_target_siginfo(p, &uinfo);
5331 unlock_user(p, arg2, sizeof(target_siginfo_t));
5332 }
5333 }
5334 break;
5335 case TARGET_NR_rt_sigqueueinfo:
5336 {
5337 siginfo_t uinfo;
5338 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5339 goto efault;
5340 target_to_host_siginfo(&uinfo, p);
5341 unlock_user(p, arg1, 0);
5342 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5343 }
5344 break;
5345 #ifdef TARGET_NR_sigreturn
5346 case TARGET_NR_sigreturn:
5347 /* NOTE: ret is eax, so not transcoding must be done */
5348 ret = do_sigreturn(cpu_env);
5349 break;
5350 #endif
5351 case TARGET_NR_rt_sigreturn:
5352 /* NOTE: ret is eax, so not transcoding must be done */
5353 ret = do_rt_sigreturn(cpu_env);
5354 break;
5355 case TARGET_NR_sethostname:
5356 if (!(p = lock_user_string(arg1)))
5357 goto efault;
5358 ret = get_errno(sethostname(p, arg2));
5359 unlock_user(p, arg1, 0);
5360 break;
5361 case TARGET_NR_setrlimit:
5362 {
5363 int resource = arg1;
5364 struct target_rlimit *target_rlim;
5365 struct rlimit rlim;
5366 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5367 goto efault;
5368 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
5369 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
5370 unlock_user_struct(target_rlim, arg2, 0);
5371 ret = get_errno(setrlimit(resource, &rlim));
5372 }
5373 break;
5374 case TARGET_NR_getrlimit:
5375 {
5376 int resource = arg1;
5377 struct target_rlimit *target_rlim;
5378 struct rlimit rlim;
5379
5380 ret = get_errno(getrlimit(resource, &rlim));
5381 if (!is_error(ret)) {
5382 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5383 goto efault;
5384 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
5385 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
5386 unlock_user_struct(target_rlim, arg2, 1);
5387 }
5388 }
5389 break;
5390 case TARGET_NR_getrusage:
5391 {
5392 struct rusage rusage;
5393 ret = get_errno(getrusage(arg1, &rusage));
5394 if (!is_error(ret)) {
5395 host_to_target_rusage(arg2, &rusage);
5396 }
5397 }
5398 break;
5399 case TARGET_NR_gettimeofday:
5400 {
5401 struct timeval tv;
5402 ret = get_errno(gettimeofday(&tv, NULL));
5403 if (!is_error(ret)) {
5404 if (copy_to_user_timeval(arg1, &tv))
5405 goto efault;
5406 }
5407 }
5408 break;
5409 case TARGET_NR_settimeofday:
5410 {
5411 struct timeval tv;
5412 if (copy_from_user_timeval(&tv, arg1))
5413 goto efault;
5414 ret = get_errno(settimeofday(&tv, NULL));
5415 }
5416 break;
5417 #ifdef TARGET_NR_select
5418 case TARGET_NR_select:
5419 {
5420 struct target_sel_arg_struct *sel;
5421 abi_ulong inp, outp, exp, tvp;
5422 long nsel;
5423
5424 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5425 goto efault;
5426 nsel = tswapl(sel->n);
5427 inp = tswapl(sel->inp);
5428 outp = tswapl(sel->outp);
5429 exp = tswapl(sel->exp);
5430 tvp = tswapl(sel->tvp);
5431 unlock_user_struct(sel, arg1, 0);
5432 ret = do_select(nsel, inp, outp, exp, tvp);
5433 }
5434 break;
5435 #endif
5436 #ifdef TARGET_NR_pselect6
5437 case TARGET_NR_pselect6:
5438 goto unimplemented_nowarn;
5439 #endif
5440 case TARGET_NR_symlink:
5441 {
5442 void *p2;
5443 p = lock_user_string(arg1);
5444 p2 = lock_user_string(arg2);
5445 if (!p || !p2)
5446 ret = -TARGET_EFAULT;
5447 else
5448 ret = get_errno(symlink(p, p2));
5449 unlock_user(p2, arg2, 0);
5450 unlock_user(p, arg1, 0);
5451 }
5452 break;
5453 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5454 case TARGET_NR_symlinkat:
5455 {
5456 void *p2;
5457 p = lock_user_string(arg1);
5458 p2 = lock_user_string(arg3);
5459 if (!p || !p2)
5460 ret = -TARGET_EFAULT;
5461 else
5462 ret = get_errno(sys_symlinkat(p, arg2, p2));
5463 unlock_user(p2, arg3, 0);
5464 unlock_user(p, arg1, 0);
5465 }
5466 break;
5467 #endif
5468 #ifdef TARGET_NR_oldlstat
5469 case TARGET_NR_oldlstat:
5470 goto unimplemented;
5471 #endif
5472 case TARGET_NR_readlink:
5473 {
5474 void *p2, *temp;
5475 p = lock_user_string(arg1);
5476 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5477 if (!p || !p2)
5478 ret = -TARGET_EFAULT;
5479 else {
5480 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5481 char real[PATH_MAX];
5482 temp = realpath(exec_path,real);
5483 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5484 snprintf((char *)p2, arg3, "%s", real);
5485 }
5486 else
5487 ret = get_errno(readlink(path(p), p2, arg3));
5488 }
5489 unlock_user(p2, arg2, ret);
5490 unlock_user(p, arg1, 0);
5491 }
5492 break;
5493 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5494 case TARGET_NR_readlinkat:
5495 {
5496 void *p2;
5497 p = lock_user_string(arg2);
5498 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5499 if (!p || !p2)
5500 ret = -TARGET_EFAULT;
5501 else
5502 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5503 unlock_user(p2, arg3, ret);
5504 unlock_user(p, arg2, 0);
5505 }
5506 break;
5507 #endif
5508 #ifdef TARGET_NR_uselib
5509 case TARGET_NR_uselib:
5510 goto unimplemented;
5511 #endif
5512 #ifdef TARGET_NR_swapon
5513 case TARGET_NR_swapon:
5514 if (!(p = lock_user_string(arg1)))
5515 goto efault;
5516 ret = get_errno(swapon(p, arg2));
5517 unlock_user(p, arg1, 0);
5518 break;
5519 #endif
5520 case TARGET_NR_reboot:
5521 goto unimplemented;
5522 #ifdef TARGET_NR_readdir
5523 case TARGET_NR_readdir:
5524 goto unimplemented;
5525 #endif
5526 #ifdef TARGET_NR_mmap
5527 case TARGET_NR_mmap:
5528 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5529 {
5530 abi_ulong *v;
5531 abi_ulong v1, v2, v3, v4, v5, v6;
5532 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5533 goto efault;
5534 v1 = tswapl(v[0]);
5535 v2 = tswapl(v[1]);
5536 v3 = tswapl(v[2]);
5537 v4 = tswapl(v[3]);
5538 v5 = tswapl(v[4]);
5539 v6 = tswapl(v[5]);
5540 unlock_user(v, arg1, 0);
5541 ret = get_errno(target_mmap(v1, v2, v3,
5542 target_to_host_bitmask(v4, mmap_flags_tbl),
5543 v5, v6));
5544 }
5545 #else
5546 ret = get_errno(target_mmap(arg1, arg2, arg3,
5547 target_to_host_bitmask(arg4, mmap_flags_tbl),
5548 arg5,
5549 arg6));
5550 #endif
5551 break;
5552 #endif
5553 #ifdef TARGET_NR_mmap2
5554 case TARGET_NR_mmap2:
5555 #ifndef MMAP_SHIFT
5556 #define MMAP_SHIFT 12
5557 #endif
5558 ret = get_errno(target_mmap(arg1, arg2, arg3,
5559 target_to_host_bitmask(arg4, mmap_flags_tbl),
5560 arg5,
5561 arg6 << MMAP_SHIFT));
5562 break;
5563 #endif
5564 case TARGET_NR_munmap:
5565 ret = get_errno(target_munmap(arg1, arg2));
5566 break;
5567 case TARGET_NR_mprotect:
5568 {
5569 TaskState *ts = ((CPUState *)cpu_env)->opaque;
5570 /* Special hack to detect libc making the stack executable. */
5571 if ((arg3 & PROT_GROWSDOWN)
5572 && arg1 >= ts->info->stack_limit
5573 && arg1 <= ts->info->start_stack) {
5574 arg3 &= ~PROT_GROWSDOWN;
5575 arg2 = arg2 + arg1 - ts->info->stack_limit;
5576 arg1 = ts->info->stack_limit;
5577 }
5578 }
5579 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5580 break;
5581 #ifdef TARGET_NR_mremap
5582 case TARGET_NR_mremap:
5583 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5584 break;
5585 #endif
5586 /* ??? msync/mlock/munlock are broken for softmmu. */
5587 #ifdef TARGET_NR_msync
5588 case TARGET_NR_msync:
5589 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5590 break;
5591 #endif
5592 #ifdef TARGET_NR_mlock
5593 case TARGET_NR_mlock:
5594 ret = get_errno(mlock(g2h(arg1), arg2));
5595 break;
5596 #endif
5597 #ifdef TARGET_NR_munlock
5598 case TARGET_NR_munlock:
5599 ret = get_errno(munlock(g2h(arg1), arg2));
5600 break;
5601 #endif
5602 #ifdef TARGET_NR_mlockall
5603 case TARGET_NR_mlockall:
5604 ret = get_errno(mlockall(arg1));
5605 break;
5606 #endif
5607 #ifdef TARGET_NR_munlockall
5608 case TARGET_NR_munlockall:
5609 ret = get_errno(munlockall());
5610 break;
5611 #endif
5612 case TARGET_NR_truncate:
5613 if (!(p = lock_user_string(arg1)))
5614 goto efault;
5615 ret = get_errno(truncate(p, arg2));
5616 unlock_user(p, arg1, 0);
5617 break;
5618 case TARGET_NR_ftruncate:
5619 ret = get_errno(ftruncate(arg1, arg2));
5620 break;
5621 case TARGET_NR_fchmod:
5622 ret = get_errno(fchmod(arg1, arg2));
5623 break;
5624 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5625 case TARGET_NR_fchmodat:
5626 if (!(p = lock_user_string(arg2)))
5627 goto efault;
5628 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5629 unlock_user(p, arg2, 0);
5630 break;
5631 #endif
5632 case TARGET_NR_getpriority:
5633 /* libc does special remapping of the return value of
5634 * sys_getpriority() so it's just easiest to call
5635 * sys_getpriority() directly rather than through libc. */
5636 ret = get_errno(sys_getpriority(arg1, arg2));
5637 break;
5638 case TARGET_NR_setpriority:
5639 ret = get_errno(setpriority(arg1, arg2, arg3));
5640 break;
5641 #ifdef TARGET_NR_profil
5642 case TARGET_NR_profil:
5643 goto unimplemented;
5644 #endif
5645 case TARGET_NR_statfs:
5646 if (!(p = lock_user_string(arg1)))
5647 goto efault;
5648 ret = get_errno(statfs(path(p), &stfs));
5649 unlock_user(p, arg1, 0);
5650 convert_statfs:
5651 if (!is_error(ret)) {
5652 struct target_statfs *target_stfs;
5653
5654 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5655 goto efault;
5656 __put_user(stfs.f_type, &target_stfs->f_type);
5657 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5658 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5659 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5660 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5661 __put_user(stfs.f_files, &target_stfs->f_files);
5662 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5663 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5664 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5665 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5666 unlock_user_struct(target_stfs, arg2, 1);
5667 }
5668 break;
5669 case TARGET_NR_fstatfs:
5670 ret = get_errno(fstatfs(arg1, &stfs));
5671 goto convert_statfs;
5672 #ifdef TARGET_NR_statfs64
5673 case TARGET_NR_statfs64:
5674 if (!(p = lock_user_string(arg1)))
5675 goto efault;
5676 ret = get_errno(statfs(path(p), &stfs));
5677 unlock_user(p, arg1, 0);
5678 convert_statfs64:
5679 if (!is_error(ret)) {
5680 struct target_statfs64 *target_stfs;
5681
5682 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5683 goto efault;
5684 __put_user(stfs.f_type, &target_stfs->f_type);
5685 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5686 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5687 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5688 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5689 __put_user(stfs.f_files, &target_stfs->f_files);
5690 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5691 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5692 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5693 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5694 unlock_user_struct(target_stfs, arg3, 1);
5695 }
5696 break;
5697 case TARGET_NR_fstatfs64:
5698 ret = get_errno(fstatfs(arg1, &stfs));
5699 goto convert_statfs64;
5700 #endif
5701 #ifdef TARGET_NR_ioperm
5702 case TARGET_NR_ioperm:
5703 goto unimplemented;
5704 #endif
5705 #ifdef TARGET_NR_socketcall
5706 case TARGET_NR_socketcall:
5707 ret = do_socketcall(arg1, arg2);
5708 break;
5709 #endif
5710 #ifdef TARGET_NR_accept
5711 case TARGET_NR_accept:
5712 ret = do_accept(arg1, arg2, arg3);
5713 break;
5714 #endif
5715 #ifdef TARGET_NR_bind
5716 case TARGET_NR_bind:
5717 ret = do_bind(arg1, arg2, arg3);
5718 break;
5719 #endif
5720 #ifdef TARGET_NR_connect
5721 case TARGET_NR_connect:
5722 ret = do_connect(arg1, arg2, arg3);
5723 break;
5724 #endif
5725 #ifdef TARGET_NR_getpeername
5726 case TARGET_NR_getpeername:
5727 ret = do_getpeername(arg1, arg2, arg3);
5728 break;
5729 #endif
5730 #ifdef TARGET_NR_getsockname
5731 case TARGET_NR_getsockname:
5732 ret = do_getsockname(arg1, arg2, arg3);
5733 break;
5734 #endif
5735 #ifdef TARGET_NR_getsockopt
5736 case TARGET_NR_getsockopt:
5737 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5738 break;
5739 #endif
5740 #ifdef TARGET_NR_listen
5741 case TARGET_NR_listen:
5742 ret = get_errno(listen(arg1, arg2));
5743 break;
5744 #endif
5745 #ifdef TARGET_NR_recv
5746 case TARGET_NR_recv:
5747 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5748 break;
5749 #endif
5750 #ifdef TARGET_NR_recvfrom
5751 case TARGET_NR_recvfrom:
5752 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5753 break;
5754 #endif
5755 #ifdef TARGET_NR_recvmsg
5756 case TARGET_NR_recvmsg:
5757 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5758 break;
5759 #endif
5760 #ifdef TARGET_NR_send
5761 case TARGET_NR_send:
5762 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5763 break;
5764 #endif
5765 #ifdef TARGET_NR_sendmsg
5766 case TARGET_NR_sendmsg:
5767 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5768 break;
5769 #endif
5770 #ifdef TARGET_NR_sendto
5771 case TARGET_NR_sendto:
5772 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5773 break;
5774 #endif
5775 #ifdef TARGET_NR_shutdown
5776 case TARGET_NR_shutdown:
5777 ret = get_errno(shutdown(arg1, arg2));
5778 break;
5779 #endif
5780 #ifdef TARGET_NR_socket
5781 case TARGET_NR_socket:
5782 ret = do_socket(arg1, arg2, arg3);
5783 break;
5784 #endif
5785 #ifdef TARGET_NR_socketpair
5786 case TARGET_NR_socketpair:
5787 ret = do_socketpair(arg1, arg2, arg3, arg4);
5788 break;
5789 #endif
5790 #ifdef TARGET_NR_setsockopt
5791 case TARGET_NR_setsockopt:
5792 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5793 break;
5794 #endif
5795
5796 case TARGET_NR_syslog:
5797 if (!(p = lock_user_string(arg2)))
5798 goto efault;
5799 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5800 unlock_user(p, arg2, 0);
5801 break;
5802
5803 case TARGET_NR_setitimer:
5804 {
5805 struct itimerval value, ovalue, *pvalue;
5806
5807 if (arg2) {
5808 pvalue = &value;
5809 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5810 || copy_from_user_timeval(&pvalue->it_value,
5811 arg2 + sizeof(struct target_timeval)))
5812 goto efault;
5813 } else {
5814 pvalue = NULL;
5815 }
5816 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5817 if (!is_error(ret) && arg3) {
5818 if (copy_to_user_timeval(arg3,
5819 &ovalue.it_interval)
5820 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5821 &ovalue.it_value))
5822 goto efault;
5823 }
5824 }
5825 break;
5826 case TARGET_NR_getitimer:
5827 {
5828 struct itimerval value;
5829
5830 ret = get_errno(getitimer(arg1, &value));
5831 if (!is_error(ret) && arg2) {
5832 if (copy_to_user_timeval(arg2,
5833 &value.it_interval)
5834 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5835 &value.it_value))
5836 goto efault;
5837 }
5838 }
5839 break;
5840 case TARGET_NR_stat:
5841 if (!(p = lock_user_string(arg1)))
5842 goto efault;
5843 ret = get_errno(stat(path(p), &st));
5844 unlock_user(p, arg1, 0);
5845 goto do_stat;
5846 case TARGET_NR_lstat:
5847 if (!(p = lock_user_string(arg1)))
5848 goto efault;
5849 ret = get_errno(lstat(path(p), &st));
5850 unlock_user(p, arg1, 0);
5851 goto do_stat;
5852 case TARGET_NR_fstat:
5853 {
5854 ret = get_errno(fstat(arg1, &st));
5855 do_stat:
5856 if (!is_error(ret)) {
5857 struct target_stat *target_st;
5858
5859 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5860 goto efault;
5861 memset(target_st, 0, sizeof(*target_st));
5862 __put_user(st.st_dev, &target_st->st_dev);
5863 __put_user(st.st_ino, &target_st->st_ino);
5864 __put_user(st.st_mode, &target_st->st_mode);
5865 __put_user(st.st_uid, &target_st->st_uid);
5866 __put_user(st.st_gid, &target_st->st_gid);
5867 __put_user(st.st_nlink, &target_st->st_nlink);
5868 __put_user(st.st_rdev, &target_st->st_rdev);
5869 __put_user(st.st_size, &target_st->st_size);
5870 __put_user(st.st_blksize, &target_st->st_blksize);
5871 __put_user(st.st_blocks, &target_st->st_blocks);
5872 __put_user(st.st_atime, &target_st->target_st_atime);
5873 __put_user(st.st_mtime, &target_st->target_st_mtime);
5874 __put_user(st.st_ctime, &target_st->target_st_ctime);
5875 unlock_user_struct(target_st, arg2, 1);
5876 }
5877 }
5878 break;
5879 #ifdef TARGET_NR_olduname
5880 case TARGET_NR_olduname:
5881 goto unimplemented;
5882 #endif
5883 #ifdef TARGET_NR_iopl
5884 case TARGET_NR_iopl:
5885 goto unimplemented;
5886 #endif
5887 case TARGET_NR_vhangup:
5888 ret = get_errno(vhangup());
5889 break;
5890 #ifdef TARGET_NR_idle
5891 case TARGET_NR_idle:
5892 goto unimplemented;
5893 #endif
5894 #ifdef TARGET_NR_syscall
5895 case TARGET_NR_syscall:
5896 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5897 break;
5898 #endif
5899 case TARGET_NR_wait4:
5900 {
5901 int status;
5902 abi_long status_ptr = arg2;
5903 struct rusage rusage, *rusage_ptr;
5904 abi_ulong target_rusage = arg4;
5905 if (target_rusage)
5906 rusage_ptr = &rusage;
5907 else
5908 rusage_ptr = NULL;
5909 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5910 if (!is_error(ret)) {
5911 if (status_ptr) {
5912 status = host_to_target_waitstatus(status);
5913 if (put_user_s32(status, status_ptr))
5914 goto efault;
5915 }
5916 if (target_rusage)
5917 host_to_target_rusage(target_rusage, &rusage);
5918 }
5919 }
5920 break;
5921 #ifdef TARGET_NR_swapoff
5922 case TARGET_NR_swapoff:
5923 if (!(p = lock_user_string(arg1)))
5924 goto efault;
5925 ret = get_errno(swapoff(p));
5926 unlock_user(p, arg1, 0);
5927 break;
5928 #endif
5929 case TARGET_NR_sysinfo:
5930 {
5931 struct target_sysinfo *target_value;
5932 struct sysinfo value;
5933 ret = get_errno(sysinfo(&value));
5934 if (!is_error(ret) && arg1)
5935 {
5936 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5937 goto efault;
5938 __put_user(value.uptime, &target_value->uptime);
5939 __put_user(value.loads[0], &target_value->loads[0]);
5940 __put_user(value.loads[1], &target_value->loads[1]);
5941 __put_user(value.loads[2], &target_value->loads[2]);
5942 __put_user(value.totalram, &target_value->totalram);
5943 __put_user(value.freeram, &target_value->freeram);
5944 __put_user(value.sharedram, &target_value->sharedram);
5945 __put_user(value.bufferram, &target_value->bufferram);
5946 __put_user(value.totalswap, &target_value->totalswap);
5947 __put_user(value.freeswap, &target_value->freeswap);
5948 __put_user(value.procs, &target_value->procs);
5949 __put_user(value.totalhigh, &target_value->totalhigh);
5950 __put_user(value.freehigh, &target_value->freehigh);
5951 __put_user(value.mem_unit, &target_value->mem_unit);
5952 unlock_user_struct(target_value, arg1, 1);
5953 }
5954 }
5955 break;
5956 #ifdef TARGET_NR_ipc
5957 case TARGET_NR_ipc:
5958 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5959 break;
5960 #endif
5961 #ifdef TARGET_NR_semget
5962 case TARGET_NR_semget:
5963 ret = get_errno(semget(arg1, arg2, arg3));
5964 break;
5965 #endif
5966 #ifdef TARGET_NR_semop
5967 case TARGET_NR_semop:
5968 ret = get_errno(do_semop(arg1, arg2, arg3));
5969 break;
5970 #endif
5971 #ifdef TARGET_NR_semctl
5972 case TARGET_NR_semctl:
5973 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5974 break;
5975 #endif
5976 #ifdef TARGET_NR_msgctl
5977 case TARGET_NR_msgctl:
5978 ret = do_msgctl(arg1, arg2, arg3);
5979 break;
5980 #endif
5981 #ifdef TARGET_NR_msgget
5982 case TARGET_NR_msgget:
5983 ret = get_errno(msgget(arg1, arg2));
5984 break;
5985 #endif
5986 #ifdef TARGET_NR_msgrcv
5987 case TARGET_NR_msgrcv:
5988 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
5989 break;
5990 #endif
5991 #ifdef TARGET_NR_msgsnd
5992 case TARGET_NR_msgsnd:
5993 ret = do_msgsnd(arg1, arg2, arg3, arg4);
5994 break;
5995 #endif
5996 #ifdef TARGET_NR_shmget
5997 case TARGET_NR_shmget:
5998 ret = get_errno(shmget(arg1, arg2, arg3));
5999 break;
6000 #endif
6001 #ifdef TARGET_NR_shmctl
6002 case TARGET_NR_shmctl:
6003 ret = do_shmctl(arg1, arg2, arg3);
6004 break;
6005 #endif
6006 #ifdef TARGET_NR_shmat
6007 case TARGET_NR_shmat:
6008 ret = do_shmat(arg1, arg2, arg3);
6009 break;
6010 #endif
6011 #ifdef TARGET_NR_shmdt
6012 case TARGET_NR_shmdt:
6013 ret = do_shmdt(arg1);
6014 break;
6015 #endif
6016 case TARGET_NR_fsync:
6017 ret = get_errno(fsync(arg1));
6018 break;
6019 case TARGET_NR_clone:
6020 #if defined(TARGET_SH4) || defined(TARGET_ALPHA)
6021 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6022 #elif defined(TARGET_CRIS)
6023 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
6024 #else
6025 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6026 #endif
6027 break;
6028 #ifdef __NR_exit_group
6029 /* new thread calls */
6030 case TARGET_NR_exit_group:
6031 #ifdef TARGET_GPROF
6032 _mcleanup();
6033 #endif
6034 gdb_exit(cpu_env, arg1);
6035 ret = get_errno(exit_group(arg1));
6036 break;
6037 #endif
6038 case TARGET_NR_setdomainname:
6039 if (!(p = lock_user_string(arg1)))
6040 goto efault;
6041 ret = get_errno(setdomainname(p, arg2));
6042 unlock_user(p, arg1, 0);
6043 break;
6044 case TARGET_NR_uname:
6045 /* no need to transcode because we use the linux syscall */
6046 {
6047 struct new_utsname * buf;
6048
6049 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6050 goto efault;
6051 ret = get_errno(sys_uname(buf));
6052 if (!is_error(ret)) {
6053 /* Overrite the native machine name with whatever is being
6054 emulated. */
6055 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6056 /* Allow the user to override the reported release. */
6057 if (qemu_uname_release && *qemu_uname_release)
6058 strcpy (buf->release, qemu_uname_release);
6059 }
6060 unlock_user_struct(buf, arg1, 1);
6061 }
6062 break;
6063 #ifdef TARGET_I386
6064 case TARGET_NR_modify_ldt:
6065 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6066 break;
6067 #if !defined(TARGET_X86_64)
6068 case TARGET_NR_vm86old:
6069 goto unimplemented;
6070 case TARGET_NR_vm86:
6071 ret = do_vm86(cpu_env, arg1, arg2);
6072 break;
6073 #endif
6074 #endif
6075 case TARGET_NR_adjtimex:
6076 goto unimplemented;
6077 #ifdef TARGET_NR_create_module
6078 case TARGET_NR_create_module:
6079 #endif
6080 case TARGET_NR_init_module:
6081 case TARGET_NR_delete_module:
6082 #ifdef TARGET_NR_get_kernel_syms
6083 case TARGET_NR_get_kernel_syms:
6084 #endif
6085 goto unimplemented;
6086 case TARGET_NR_quotactl:
6087 goto unimplemented;
6088 case TARGET_NR_getpgid:
6089 ret = get_errno(getpgid(arg1));
6090 break;
6091 case TARGET_NR_fchdir:
6092 ret = get_errno(fchdir(arg1));
6093 break;
6094 #ifdef TARGET_NR_bdflush /* not on x86_64 */
6095 case TARGET_NR_bdflush:
6096 goto unimplemented;
6097 #endif
6098 #ifdef TARGET_NR_sysfs
6099 case TARGET_NR_sysfs:
6100 goto unimplemented;
6101 #endif
6102 case TARGET_NR_personality:
6103 ret = get_errno(personality(arg1));
6104 break;
6105 #ifdef TARGET_NR_afs_syscall
6106 case TARGET_NR_afs_syscall:
6107 goto unimplemented;
6108 #endif
6109 #ifdef TARGET_NR__llseek /* Not on alpha */
6110 case TARGET_NR__llseek:
6111 {
6112 #if !defined(__NR_llseek)
6113 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
6114 if (put_user_s64(ret, arg4))
6115 goto efault;
6116 #else
6117 int64_t res;
6118 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
6119 if (put_user_s64(res, arg4))
6120 goto efault;
6121 #endif
6122 }
6123 break;
6124 #endif
6125 case TARGET_NR_getdents:
6126 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
6127 {
6128 struct target_dirent *target_dirp;
6129 struct linux_dirent *dirp;
6130 abi_long count = arg3;
6131
6132 dirp = malloc(count);
6133 if (!dirp) {
6134 ret = -TARGET_ENOMEM;
6135 goto fail;
6136 }
6137
6138 ret = get_errno(sys_getdents(arg1, dirp, count));
6139 if (!is_error(ret)) {
6140 struct linux_dirent *de;
6141 struct target_dirent *tde;
6142 int len = ret;
6143 int reclen, treclen;
6144 int count1, tnamelen;
6145
6146 count1 = 0;
6147 de = dirp;
6148 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6149 goto efault;
6150 tde = target_dirp;
6151 while (len > 0) {
6152 reclen = de->d_reclen;
6153 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
6154 tde->d_reclen = tswap16(treclen);
6155 tde->d_ino = tswapl(de->d_ino);
6156 tde->d_off = tswapl(de->d_off);
6157 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
6158 if (tnamelen > 256)
6159 tnamelen = 256;
6160 /* XXX: may not be correct */
6161 pstrcpy(tde->d_name, tnamelen, de->d_name);
6162 de = (struct linux_dirent *)((char *)de + reclen);
6163 len -= reclen;
6164 tde = (struct target_dirent *)((char *)tde + treclen);
6165 count1 += treclen;
6166 }
6167 ret = count1;
6168 unlock_user(target_dirp, arg2, ret);
6169 }
6170 free(dirp);
6171 }
6172 #else
6173 {
6174 struct linux_dirent *dirp;
6175 abi_long count = arg3;
6176
6177 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6178 goto efault;
6179 ret = get_errno(sys_getdents(arg1, dirp, count));
6180 if (!is_error(ret)) {
6181 struct linux_dirent *de;
6182 int len = ret;
6183 int reclen;
6184 de = dirp;
6185 while (len > 0) {
6186 reclen = de->d_reclen;
6187 if (reclen > len)
6188 break;
6189 de->d_reclen = tswap16(reclen);
6190 tswapls(&de->d_ino);
6191 tswapls(&de->d_off);
6192 de = (struct linux_dirent *)((char *)de + reclen);
6193 len -= reclen;
6194 }
6195 }
6196 unlock_user(dirp, arg2, ret);
6197 }
6198 #endif
6199 break;
6200 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
6201 case TARGET_NR_getdents64:
6202 {
6203 struct linux_dirent64 *dirp;
6204 abi_long count = arg3;
6205 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6206 goto efault;
6207 ret = get_errno(sys_getdents64(arg1, dirp, count));
6208 if (!is_error(ret)) {
6209 struct linux_dirent64 *de;
6210 int len = ret;
6211 int reclen;
6212 de = dirp;
6213 while (len > 0) {
6214 reclen = de->d_reclen;
6215 if (reclen > len)
6216 break;
6217 de->d_reclen = tswap16(reclen);
6218 tswap64s((uint64_t *)&de->d_ino);
6219 tswap64s((uint64_t *)&de->d_off);
6220 de = (struct linux_dirent64 *)((char *)de + reclen);
6221 len -= reclen;
6222 }
6223 }
6224 unlock_user(dirp, arg2, ret);
6225 }
6226 break;
6227 #endif /* TARGET_NR_getdents64 */
6228 #ifdef TARGET_NR__newselect
6229 case TARGET_NR__newselect:
6230 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6231 break;
6232 #endif
6233 #ifdef TARGET_NR_poll
6234 case TARGET_NR_poll:
6235 {
6236 struct target_pollfd *target_pfd;
6237 unsigned int nfds = arg2;
6238 int timeout = arg3;
6239 struct pollfd *pfd;
6240 unsigned int i;
6241
6242 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
6243 if (!target_pfd)
6244 goto efault;
6245 pfd = alloca(sizeof(struct pollfd) * nfds);
6246 for(i = 0; i < nfds; i++) {
6247 pfd[i].fd = tswap32(target_pfd[i].fd);
6248 pfd[i].events = tswap16(target_pfd[i].events);
6249 }
6250 ret = get_errno(poll(pfd, nfds, timeout));
6251 if (!is_error(ret)) {
6252 for(i = 0; i < nfds; i++) {
6253 target_pfd[i].revents = tswap16(pfd[i].revents);
6254 }
6255 ret += nfds * (sizeof(struct target_pollfd)
6256 - sizeof(struct pollfd));
6257 }
6258 unlock_user(target_pfd, arg1, ret);
6259 }
6260 break;
6261 #endif
6262 case TARGET_NR_flock:
6263 /* NOTE: the flock constant seems to be the same for every
6264 Linux platform */
6265 ret = get_errno(flock(arg1, arg2));
6266 break;
6267 case TARGET_NR_readv:
6268 {
6269 int count = arg3;
6270 struct iovec *vec;
6271
6272 vec = alloca(count * sizeof(struct iovec));
6273 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
6274 goto efault;
6275 ret = get_errno(readv(arg1, vec, count));
6276 unlock_iovec(vec, arg2, count, 1);
6277 }
6278 break;
6279 case TARGET_NR_writev:
6280 {
6281 int count = arg3;
6282 struct iovec *vec;
6283
6284 vec = alloca(count * sizeof(struct iovec));
6285 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6286 goto efault;
6287 ret = get_errno(writev(arg1, vec, count));
6288 unlock_iovec(vec, arg2, count, 0);
6289 }
6290 break;
6291 case TARGET_NR_getsid:
6292 ret = get_errno(getsid(arg1));
6293 break;
6294 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
6295 case TARGET_NR_fdatasync:
6296 ret = get_errno(fdatasync(arg1));
6297 break;
6298 #endif
6299 case TARGET_NR__sysctl:
6300 /* We don't implement this, but ENOTDIR is always a safe
6301 return value. */
6302 ret = -TARGET_ENOTDIR;
6303 break;
6304 case TARGET_NR_sched_setparam:
6305 {
6306 struct sched_param *target_schp;
6307 struct sched_param schp;
6308
6309 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
6310 goto efault;
6311 schp.sched_priority = tswap32(target_schp->sched_priority);
6312 unlock_user_struct(target_schp, arg2, 0);
6313 ret = get_errno(sched_setparam(arg1, &schp));
6314 }
6315 break;
6316 case TARGET_NR_sched_getparam:
6317 {
6318 struct sched_param *target_schp;
6319 struct sched_param schp;
6320 ret = get_errno(sched_getparam(arg1, &schp));
6321 if (!is_error(ret)) {
6322 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
6323 goto efault;
6324 target_schp->sched_priority = tswap32(schp.sched_priority);
6325 unlock_user_struct(target_schp, arg2, 1);
6326 }
6327 }
6328 break;
6329 case TARGET_NR_sched_setscheduler:
6330 {
6331 struct sched_param *target_schp;
6332 struct sched_param schp;
6333 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6334 goto efault;
6335 schp.sched_priority = tswap32(target_schp->sched_priority);
6336 unlock_user_struct(target_schp, arg3, 0);
6337 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6338 }
6339 break;
6340 case TARGET_NR_sched_getscheduler:
6341 ret = get_errno(sched_getscheduler(arg1));
6342 break;
6343 case TARGET_NR_sched_yield:
6344 ret = get_errno(sched_yield());
6345 break;
6346 case TARGET_NR_sched_get_priority_max:
6347 ret = get_errno(sched_get_priority_max(arg1));
6348 break;
6349 case TARGET_NR_sched_get_priority_min:
6350 ret = get_errno(sched_get_priority_min(arg1));
6351 break;
6352 case TARGET_NR_sched_rr_get_interval:
6353 {
6354 struct timespec ts;
6355 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6356 if (!is_error(ret)) {
6357 host_to_target_timespec(arg2, &ts);
6358 }
6359 }
6360 break;
6361 case TARGET_NR_nanosleep:
6362 {
6363 struct timespec req, rem;
6364 target_to_host_timespec(&req, arg1);
6365 ret = get_errno(nanosleep(&req, &rem));
6366 if (is_error(ret) && arg2) {
6367 host_to_target_timespec(arg2, &rem);
6368 }
6369 }
6370 break;
6371 #ifdef TARGET_NR_query_module
6372 case TARGET_NR_query_module:
6373 goto unimplemented;
6374 #endif
6375 #ifdef TARGET_NR_nfsservctl
6376 case TARGET_NR_nfsservctl:
6377 goto unimplemented;
6378 #endif
6379 case TARGET_NR_prctl:
6380 switch (arg1)
6381 {
6382 case PR_GET_PDEATHSIG:
6383 {
6384 int deathsig;
6385 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6386 if (!is_error(ret) && arg2
6387 && put_user_ual(deathsig, arg2))
6388 goto efault;
6389 }
6390 break;
6391 default:
6392 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6393 break;
6394 }
6395 break;
6396 #ifdef TARGET_NR_arch_prctl
6397 case TARGET_NR_arch_prctl:
6398 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6399 ret = do_arch_prctl(cpu_env, arg1, arg2);
6400 break;
6401 #else
6402 goto unimplemented;
6403 #endif
6404 #endif
6405 #ifdef TARGET_NR_pread
6406 case TARGET_NR_pread:
6407 #ifdef TARGET_ARM
6408 if (((CPUARMState *)cpu_env)->eabi)
6409 arg4 = arg5;
6410 #endif
6411 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6412 goto efault;
6413 ret = get_errno(pread(arg1, p, arg3, arg4));
6414 unlock_user(p, arg2, ret);
6415 break;
6416 case TARGET_NR_pwrite:
6417 #ifdef TARGET_ARM
6418 if (((CPUARMState *)cpu_env)->eabi)
6419 arg4 = arg5;
6420 #endif
6421 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6422 goto efault;
6423 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6424 unlock_user(p, arg2, 0);
6425 break;
6426 #endif
6427 #ifdef TARGET_NR_pread64
6428 case TARGET_NR_pread64:
6429 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6430 goto efault;
6431 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6432 unlock_user(p, arg2, ret);
6433 break;
6434 case TARGET_NR_pwrite64:
6435 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6436 goto efault;
6437 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6438 unlock_user(p, arg2, 0);
6439 break;
6440 #endif
6441 case TARGET_NR_getcwd:
6442 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6443 goto efault;
6444 ret = get_errno(sys_getcwd1(p, arg2));
6445 unlock_user(p, arg1, ret);
6446 break;
6447 case TARGET_NR_capget:
6448 goto unimplemented;
6449 case TARGET_NR_capset:
6450 goto unimplemented;
6451 case TARGET_NR_sigaltstack:
6452 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6453 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6454 defined(TARGET_M68K)
6455 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6456 break;
6457 #else
6458 goto unimplemented;
6459 #endif
6460 case TARGET_NR_sendfile:
6461 goto unimplemented;
6462 #ifdef TARGET_NR_getpmsg
6463 case TARGET_NR_getpmsg:
6464 goto unimplemented;
6465 #endif
6466 #ifdef TARGET_NR_putpmsg
6467 case TARGET_NR_putpmsg:
6468 goto unimplemented;
6469 #endif
6470 #ifdef TARGET_NR_vfork
6471 case TARGET_NR_vfork:
6472 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6473 0, 0, 0, 0));
6474 break;
6475 #endif
6476 #ifdef TARGET_NR_ugetrlimit
6477 case TARGET_NR_ugetrlimit:
6478 {
6479 struct rlimit rlim;
6480 ret = get_errno(getrlimit(arg1, &rlim));
6481 if (!is_error(ret)) {
6482 struct target_rlimit *target_rlim;
6483 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6484 goto efault;
6485 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6486 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6487 unlock_user_struct(target_rlim, arg2, 1);
6488 }
6489 break;
6490 }
6491 #endif
6492 #ifdef TARGET_NR_truncate64
6493 case TARGET_NR_truncate64:
6494 if (!(p = lock_user_string(arg1)))
6495 goto efault;
6496 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6497 unlock_user(p, arg1, 0);
6498 break;
6499 #endif
6500 #ifdef TARGET_NR_ftruncate64
6501 case TARGET_NR_ftruncate64:
6502 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6503 break;
6504 #endif
6505 #ifdef TARGET_NR_stat64
6506 case TARGET_NR_stat64:
6507 if (!(p = lock_user_string(arg1)))
6508 goto efault;
6509 ret = get_errno(stat(path(p), &st));
6510 unlock_user(p, arg1, 0);
6511 if (!is_error(ret))
6512 ret = host_to_target_stat64(cpu_env, arg2, &st);
6513 break;
6514 #endif
6515 #ifdef TARGET_NR_lstat64
6516 case TARGET_NR_lstat64:
6517 if (!(p = lock_user_string(arg1)))
6518 goto efault;
6519 ret = get_errno(lstat(path(p), &st));
6520 unlock_user(p, arg1, 0);
6521 if (!is_error(ret))
6522 ret = host_to_target_stat64(cpu_env, arg2, &st);
6523 break;
6524 #endif
6525 #ifdef TARGET_NR_fstat64
6526 case TARGET_NR_fstat64:
6527 ret = get_errno(fstat(arg1, &st));
6528 if (!is_error(ret))
6529 ret = host_to_target_stat64(cpu_env, arg2, &st);
6530 break;
6531 #endif
6532 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6533 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6534 #ifdef TARGET_NR_fstatat64
6535 case TARGET_NR_fstatat64:
6536 #endif
6537 #ifdef TARGET_NR_newfstatat
6538 case TARGET_NR_newfstatat:
6539 #endif
6540 if (!(p = lock_user_string(arg2)))
6541 goto efault;
6542 #ifdef __NR_fstatat64
6543 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6544 #else
6545 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6546 #endif
6547 if (!is_error(ret))
6548 ret = host_to_target_stat64(cpu_env, arg3, &st);
6549 break;
6550 #endif
6551 #ifdef USE_UID16
6552 case TARGET_NR_lchown:
6553 if (!(p = lock_user_string(arg1)))
6554 goto efault;
6555 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6556 unlock_user(p, arg1, 0);
6557 break;
6558 case TARGET_NR_getuid:
6559 ret = get_errno(high2lowuid(getuid()));
6560 break;
6561 case TARGET_NR_getgid:
6562 ret = get_errno(high2lowgid(getgid()));
6563 break;
6564 case TARGET_NR_geteuid:
6565 ret = get_errno(high2lowuid(geteuid()));
6566 break;
6567 case TARGET_NR_getegid:
6568 ret = get_errno(high2lowgid(getegid()));
6569 break;
6570 case TARGET_NR_setreuid:
6571 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6572 break;
6573 case TARGET_NR_setregid:
6574 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6575 break;
6576 case TARGET_NR_getgroups:
6577 {
6578 int gidsetsize = arg1;
6579 uint16_t *target_grouplist;
6580 gid_t *grouplist;
6581 int i;
6582
6583 grouplist = alloca(gidsetsize * sizeof(gid_t));
6584 ret = get_errno(getgroups(gidsetsize, grouplist));
6585 if (gidsetsize == 0)
6586 break;
6587 if (!is_error(ret)) {
6588 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6589 if (!target_grouplist)
6590 goto efault;
6591 for(i = 0;i < ret; i++)
6592 target_grouplist[i] = tswap16(grouplist[i]);
6593 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6594 }
6595 }
6596 break;
6597 case TARGET_NR_setgroups:
6598 {
6599 int gidsetsize = arg1;
6600 uint16_t *target_grouplist;
6601 gid_t *grouplist;
6602 int i;
6603
6604 grouplist = alloca(gidsetsize * sizeof(gid_t));
6605 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6606 if (!target_grouplist) {
6607 ret = -TARGET_EFAULT;
6608 goto fail;
6609 }
6610 for(i = 0;i < gidsetsize; i++)
6611 grouplist[i] = tswap16(target_grouplist[i]);
6612 unlock_user(target_grouplist, arg2, 0);
6613 ret = get_errno(setgroups(gidsetsize, grouplist));
6614 }
6615 break;
6616 case TARGET_NR_fchown:
6617 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6618 break;
6619 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6620 case TARGET_NR_fchownat:
6621 if (!(p = lock_user_string(arg2)))
6622 goto efault;
6623 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6624 unlock_user(p, arg2, 0);
6625 break;
6626 #endif
6627 #ifdef TARGET_NR_setresuid
6628 case TARGET_NR_setresuid:
6629 ret = get_errno(setresuid(low2highuid(arg1),
6630 low2highuid(arg2),
6631 low2highuid(arg3)));
6632 break;
6633 #endif
6634 #ifdef TARGET_NR_getresuid
6635 case TARGET_NR_getresuid:
6636 {
6637 uid_t ruid, euid, suid;
6638 ret = get_errno(getresuid(&ruid, &euid, &suid));
6639 if (!is_error(ret)) {
6640 if (put_user_u16(high2lowuid(ruid), arg1)
6641 || put_user_u16(high2lowuid(euid), arg2)
6642 || put_user_u16(high2lowuid(suid), arg3))
6643 goto efault;
6644 }
6645 }
6646 break;
6647 #endif
6648 #ifdef TARGET_NR_getresgid
6649 case TARGET_NR_setresgid:
6650 ret = get_errno(setresgid(low2highgid(arg1),
6651 low2highgid(arg2),
6652 low2highgid(arg3)));
6653 break;
6654 #endif
6655 #ifdef TARGET_NR_getresgid
6656 case TARGET_NR_getresgid:
6657 {
6658 gid_t rgid, egid, sgid;
6659 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6660 if (!is_error(ret)) {
6661 if (put_user_u16(high2lowgid(rgid), arg1)
6662 || put_user_u16(high2lowgid(egid), arg2)
6663 || put_user_u16(high2lowgid(sgid), arg3))
6664 goto efault;
6665 }
6666 }
6667 break;
6668 #endif
6669 case TARGET_NR_chown:
6670 if (!(p = lock_user_string(arg1)))
6671 goto efault;
6672 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6673 unlock_user(p, arg1, 0);
6674 break;
6675 case TARGET_NR_setuid:
6676 ret = get_errno(setuid(low2highuid(arg1)));
6677 break;
6678 case TARGET_NR_setgid:
6679 ret = get_errno(setgid(low2highgid(arg1)));
6680 break;
6681 case TARGET_NR_setfsuid:
6682 ret = get_errno(setfsuid(arg1));
6683 break;
6684 case TARGET_NR_setfsgid:
6685 ret = get_errno(setfsgid(arg1));
6686 break;
6687 #endif /* USE_UID16 */
6688
6689 #ifdef TARGET_NR_lchown32
6690 case TARGET_NR_lchown32:
6691 if (!(p = lock_user_string(arg1)))
6692 goto efault;
6693 ret = get_errno(lchown(p, arg2, arg3));
6694 unlock_user(p, arg1, 0);
6695 break;
6696 #endif
6697 #ifdef TARGET_NR_getuid32
6698 case TARGET_NR_getuid32:
6699 ret = get_errno(getuid());
6700 break;
6701 #endif
6702
6703 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6704 /* Alpha specific */
6705 case TARGET_NR_getxuid:
6706 {
6707 uid_t euid;
6708 euid=geteuid();
6709 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6710 }
6711 ret = get_errno(getuid());
6712 break;
6713 #endif
6714 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6715 /* Alpha specific */
6716 case TARGET_NR_getxgid:
6717 {
6718 uid_t egid;
6719 egid=getegid();
6720 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6721 }
6722 ret = get_errno(getgid());
6723 break;
6724 #endif
6725 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
6726 /* Alpha specific */
6727 case TARGET_NR_osf_getsysinfo:
6728 ret = -TARGET_EOPNOTSUPP;
6729 switch (arg1) {
6730 case TARGET_GSI_IEEE_FP_CONTROL:
6731 {
6732 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
6733
6734 /* Copied from linux ieee_fpcr_to_swcr. */
6735 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
6736 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
6737 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
6738 | SWCR_TRAP_ENABLE_DZE
6739 | SWCR_TRAP_ENABLE_OVF);
6740 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
6741 | SWCR_TRAP_ENABLE_INE);
6742 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
6743 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
6744
6745 if (put_user_u64 (swcr, arg2))
6746 goto efault;
6747 ret = 0;
6748 }
6749 break;
6750
6751 /* case GSI_IEEE_STATE_AT_SIGNAL:
6752 -- Not implemented in linux kernel.
6753 case GSI_UACPROC:
6754 -- Retrieves current unaligned access state; not much used.
6755 case GSI_PROC_TYPE:
6756 -- Retrieves implver information; surely not used.
6757 case GSI_GET_HWRPB:
6758 -- Grabs a copy of the HWRPB; surely not used.
6759 */
6760 }
6761 break;
6762 #endif
6763 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
6764 /* Alpha specific */
6765 case TARGET_NR_osf_setsysinfo:
6766 ret = -TARGET_EOPNOTSUPP;
6767 switch (arg1) {
6768 case TARGET_SSI_IEEE_FP_CONTROL:
6769 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
6770 {
6771 uint64_t swcr, fpcr, orig_fpcr;
6772
6773 if (get_user_u64 (swcr, arg2))
6774 goto efault;
6775 orig_fpcr = cpu_alpha_load_fpcr (cpu_env);
6776 fpcr = orig_fpcr & FPCR_DYN_MASK;
6777
6778 /* Copied from linux ieee_swcr_to_fpcr. */
6779 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
6780 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
6781 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
6782 | SWCR_TRAP_ENABLE_DZE
6783 | SWCR_TRAP_ENABLE_OVF)) << 48;
6784 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
6785 | SWCR_TRAP_ENABLE_INE)) << 57;
6786 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
6787 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
6788
6789 cpu_alpha_store_fpcr (cpu_env, fpcr);
6790 ret = 0;
6791
6792 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) {
6793 /* Old exceptions are not signaled. */
6794 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
6795
6796 /* If any exceptions set by this call, and are unmasked,
6797 send a signal. */
6798 /* ??? FIXME */
6799 }
6800 }
6801 break;
6802
6803 /* case SSI_NVPAIRS:
6804 -- Used with SSIN_UACPROC to enable unaligned accesses.
6805 case SSI_IEEE_STATE_AT_SIGNAL:
6806 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
6807 -- Not implemented in linux kernel
6808 */
6809 }
6810 break;
6811 #endif
6812 #ifdef TARGET_NR_osf_sigprocmask
6813 /* Alpha specific. */
6814 case TARGET_NR_osf_sigprocmask:
6815 {
6816 abi_ulong mask;
6817 int how = arg1;
6818 sigset_t set, oldset;
6819
6820 switch(arg1) {
6821 case TARGET_SIG_BLOCK:
6822 how = SIG_BLOCK;
6823 break;
6824 case TARGET_SIG_UNBLOCK:
6825 how = SIG_UNBLOCK;
6826 break;
6827 case TARGET_SIG_SETMASK:
6828 how = SIG_SETMASK;
6829 break;
6830 default:
6831 ret = -TARGET_EINVAL;
6832 goto fail;
6833 }
6834 mask = arg2;
6835 target_to_host_old_sigset(&set, &mask);
6836 sigprocmask(arg1, &set, &oldset);
6837 host_to_target_old_sigset(&mask, &oldset);
6838 ret = mask;
6839 }
6840 break;
6841 #endif
6842
6843 #ifdef TARGET_NR_getgid32
6844 case TARGET_NR_getgid32:
6845 ret = get_errno(getgid());
6846 break;
6847 #endif
6848 #ifdef TARGET_NR_geteuid32
6849 case TARGET_NR_geteuid32:
6850 ret = get_errno(geteuid());
6851 break;
6852 #endif
6853 #ifdef TARGET_NR_getegid32
6854 case TARGET_NR_getegid32:
6855 ret = get_errno(getegid());
6856 break;
6857 #endif
6858 #ifdef TARGET_NR_setreuid32
6859 case TARGET_NR_setreuid32:
6860 ret = get_errno(setreuid(arg1, arg2));
6861 break;
6862 #endif
6863 #ifdef TARGET_NR_setregid32
6864 case TARGET_NR_setregid32:
6865 ret = get_errno(setregid(arg1, arg2));
6866 break;
6867 #endif
6868 #ifdef TARGET_NR_getgroups32
6869 case TARGET_NR_getgroups32:
6870 {
6871 int gidsetsize = arg1;
6872 uint32_t *target_grouplist;
6873 gid_t *grouplist;
6874 int i;
6875
6876 grouplist = alloca(gidsetsize * sizeof(gid_t));
6877 ret = get_errno(getgroups(gidsetsize, grouplist));
6878 if (gidsetsize == 0)
6879 break;
6880 if (!is_error(ret)) {
6881 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
6882 if (!target_grouplist) {
6883 ret = -TARGET_EFAULT;
6884 goto fail;
6885 }
6886 for(i = 0;i < ret; i++)
6887 target_grouplist[i] = tswap32(grouplist[i]);
6888 unlock_user(target_grouplist, arg2, gidsetsize * 4);
6889 }
6890 }
6891 break;
6892 #endif
6893 #ifdef TARGET_NR_setgroups32
6894 case TARGET_NR_setgroups32:
6895 {
6896 int gidsetsize = arg1;
6897 uint32_t *target_grouplist;
6898 gid_t *grouplist;
6899 int i;
6900
6901 grouplist = alloca(gidsetsize * sizeof(gid_t));
6902 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
6903 if (!target_grouplist) {
6904 ret = -TARGET_EFAULT;
6905 goto fail;
6906 }
6907 for(i = 0;i < gidsetsize; i++)
6908 grouplist[i] = tswap32(target_grouplist[i]);
6909 unlock_user(target_grouplist, arg2, 0);
6910 ret = get_errno(setgroups(gidsetsize, grouplist));
6911 }
6912 break;
6913 #endif
6914 #ifdef TARGET_NR_fchown32
6915 case TARGET_NR_fchown32:
6916 ret = get_errno(fchown(arg1, arg2, arg3));
6917 break;
6918 #endif
6919 #ifdef TARGET_NR_setresuid32
6920 case TARGET_NR_setresuid32:
6921 ret = get_errno(setresuid(arg1, arg2, arg3));
6922 break;
6923 #endif
6924 #ifdef TARGET_NR_getresuid32
6925 case TARGET_NR_getresuid32:
6926 {
6927 uid_t ruid, euid, suid;
6928 ret = get_errno(getresuid(&ruid, &euid, &suid));
6929 if (!is_error(ret)) {
6930 if (put_user_u32(ruid, arg1)
6931 || put_user_u32(euid, arg2)
6932 || put_user_u32(suid, arg3))
6933 goto efault;
6934 }
6935 }
6936 break;
6937 #endif
6938 #ifdef TARGET_NR_setresgid32
6939 case TARGET_NR_setresgid32:
6940 ret = get_errno(setresgid(arg1, arg2, arg3));
6941 break;
6942 #endif
6943 #ifdef TARGET_NR_getresgid32
6944 case TARGET_NR_getresgid32:
6945 {
6946 gid_t rgid, egid, sgid;
6947 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6948 if (!is_error(ret)) {
6949 if (put_user_u32(rgid, arg1)
6950 || put_user_u32(egid, arg2)
6951 || put_user_u32(sgid, arg3))
6952 goto efault;
6953 }
6954 }
6955 break;
6956 #endif
6957 #ifdef TARGET_NR_chown32
6958 case TARGET_NR_chown32:
6959 if (!(p = lock_user_string(arg1)))
6960 goto efault;
6961 ret = get_errno(chown(p, arg2, arg3));
6962 unlock_user(p, arg1, 0);
6963 break;
6964 #endif
6965 #ifdef TARGET_NR_setuid32
6966 case TARGET_NR_setuid32:
6967 ret = get_errno(setuid(arg1));
6968 break;
6969 #endif
6970 #ifdef TARGET_NR_setgid32
6971 case TARGET_NR_setgid32:
6972 ret = get_errno(setgid(arg1));
6973 break;
6974 #endif
6975 #ifdef TARGET_NR_setfsuid32
6976 case TARGET_NR_setfsuid32:
6977 ret = get_errno(setfsuid(arg1));
6978 break;
6979 #endif
6980 #ifdef TARGET_NR_setfsgid32
6981 case TARGET_NR_setfsgid32:
6982 ret = get_errno(setfsgid(arg1));
6983 break;
6984 #endif
6985
6986 case TARGET_NR_pivot_root:
6987 goto unimplemented;
6988 #ifdef TARGET_NR_mincore
6989 case TARGET_NR_mincore:
6990 {
6991 void *a;
6992 ret = -TARGET_EFAULT;
6993 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
6994 goto efault;
6995 if (!(p = lock_user_string(arg3)))
6996 goto mincore_fail;
6997 ret = get_errno(mincore(a, arg2, p));
6998 unlock_user(p, arg3, ret);
6999 mincore_fail:
7000 unlock_user(a, arg1, 0);
7001 }
7002 break;
7003 #endif
7004 #ifdef TARGET_NR_arm_fadvise64_64
7005 case TARGET_NR_arm_fadvise64_64:
7006 {
7007 /*
7008 * arm_fadvise64_64 looks like fadvise64_64 but
7009 * with different argument order
7010 */
7011 abi_long temp;
7012 temp = arg3;
7013 arg3 = arg4;
7014 arg4 = temp;
7015 }
7016 #endif
7017 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
7018 #ifdef TARGET_NR_fadvise64_64
7019 case TARGET_NR_fadvise64_64:
7020 #endif
7021 #ifdef TARGET_NR_fadvise64
7022 case TARGET_NR_fadvise64:
7023 #endif
7024 #ifdef TARGET_S390X
7025 switch (arg4) {
7026 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
7027 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
7028 case 6: arg4 = POSIX_FADV_DONTNEED; break;
7029 case 7: arg4 = POSIX_FADV_NOREUSE; break;
7030 default: break;
7031 }
7032 #endif
7033 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
7034 break;
7035 #endif
7036 #ifdef TARGET_NR_madvise
7037 case TARGET_NR_madvise:
7038 /* A straight passthrough may not be safe because qemu sometimes
7039 turns private flie-backed mappings into anonymous mappings.
7040 This will break MADV_DONTNEED.
7041 This is a hint, so ignoring and returning success is ok. */
7042 ret = get_errno(0);
7043 break;
7044 #endif
7045 #if TARGET_ABI_BITS == 32
7046 case TARGET_NR_fcntl64:
7047 {
7048 int cmd;
7049 struct flock64 fl;
7050 struct target_flock64 *target_fl;
7051 #ifdef TARGET_ARM
7052 struct target_eabi_flock64 *target_efl;
7053 #endif
7054
7055 cmd = target_to_host_fcntl_cmd(arg2);
7056 if (cmd == -TARGET_EINVAL)
7057 return cmd;
7058
7059 switch(arg2) {
7060 case TARGET_F_GETLK64:
7061 #ifdef TARGET_ARM
7062 if (((CPUARMState *)cpu_env)->eabi) {
7063 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7064 goto efault;
7065 fl.l_type = tswap16(target_efl->l_type);
7066 fl.l_whence = tswap16(target_efl->l_whence);
7067 fl.l_start = tswap64(target_efl->l_start);
7068 fl.l_len = tswap64(target_efl->l_len);
7069 fl.l_pid = tswap32(target_efl->l_pid);
7070 unlock_user_struct(target_efl, arg3, 0);
7071 } else
7072 #endif
7073 {
7074 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7075 goto efault;
7076 fl.l_type = tswap16(target_fl->l_type);
7077 fl.l_whence = tswap16(target_fl->l_whence);
7078 fl.l_start = tswap64(target_fl->l_start);
7079 fl.l_len = tswap64(target_fl->l_len);
7080 fl.l_pid = tswap32(target_fl->l_pid);
7081 unlock_user_struct(target_fl, arg3, 0);
7082 }
7083 ret = get_errno(fcntl(arg1, cmd, &fl));
7084 if (ret == 0) {
7085 #ifdef TARGET_ARM
7086 if (((CPUARMState *)cpu_env)->eabi) {
7087 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
7088 goto efault;
7089 target_efl->l_type = tswap16(fl.l_type);
7090 target_efl->l_whence = tswap16(fl.l_whence);
7091 target_efl->l_start = tswap64(fl.l_start);
7092 target_efl->l_len = tswap64(fl.l_len);
7093 target_efl->l_pid = tswap32(fl.l_pid);
7094 unlock_user_struct(target_efl, arg3, 1);
7095 } else
7096 #endif
7097 {
7098 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
7099 goto efault;
7100 target_fl->l_type = tswap16(fl.l_type);
7101 target_fl->l_whence = tswap16(fl.l_whence);
7102 target_fl->l_start = tswap64(fl.l_start);
7103 target_fl->l_len = tswap64(fl.l_len);
7104 target_fl->l_pid = tswap32(fl.l_pid);
7105 unlock_user_struct(target_fl, arg3, 1);
7106 }
7107 }
7108 break;
7109
7110 case TARGET_F_SETLK64:
7111 case TARGET_F_SETLKW64:
7112 #ifdef TARGET_ARM
7113 if (((CPUARMState *)cpu_env)->eabi) {
7114 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7115 goto efault;
7116 fl.l_type = tswap16(target_efl->l_type);
7117 fl.l_whence = tswap16(target_efl->l_whence);
7118 fl.l_start = tswap64(target_efl->l_start);
7119 fl.l_len = tswap64(target_efl->l_len);
7120 fl.l_pid = tswap32(target_efl->l_pid);
7121 unlock_user_struct(target_efl, arg3, 0);
7122 } else
7123 #endif
7124 {
7125 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7126 goto efault;
7127 fl.l_type = tswap16(target_fl->l_type);
7128 fl.l_whence = tswap16(target_fl->l_whence);
7129 fl.l_start = tswap64(target_fl->l_start);
7130 fl.l_len = tswap64(target_fl->l_len);
7131 fl.l_pid = tswap32(target_fl->l_pid);
7132 unlock_user_struct(target_fl, arg3, 0);
7133 }
7134 ret = get_errno(fcntl(arg1, cmd, &fl));
7135 break;
7136 default:
7137 ret = do_fcntl(arg1, arg2, arg3);
7138 break;
7139 }
7140 break;
7141 }
7142 #endif
7143 #ifdef TARGET_NR_cacheflush
7144 case TARGET_NR_cacheflush:
7145 /* self-modifying code is handled automatically, so nothing needed */
7146 ret = 0;
7147 break;
7148 #endif
7149 #ifdef TARGET_NR_security
7150 case TARGET_NR_security:
7151 goto unimplemented;
7152 #endif
7153 #ifdef TARGET_NR_getpagesize
7154 case TARGET_NR_getpagesize:
7155 ret = TARGET_PAGE_SIZE;
7156 break;
7157 #endif
7158 case TARGET_NR_gettid:
7159 ret = get_errno(gettid());
7160 break;
7161 #ifdef TARGET_NR_readahead
7162 case TARGET_NR_readahead:
7163 #if TARGET_ABI_BITS == 32
7164 #ifdef TARGET_ARM
7165 if (((CPUARMState *)cpu_env)->eabi)
7166 {
7167 arg2 = arg3;
7168 arg3 = arg4;
7169 arg4 = arg5;
7170 }
7171 #endif
7172 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
7173 #else
7174 ret = get_errno(readahead(arg1, arg2, arg3));
7175 #endif
7176 break;
7177 #endif
7178 #ifdef TARGET_NR_setxattr
7179 case TARGET_NR_setxattr:
7180 case TARGET_NR_lsetxattr:
7181 case TARGET_NR_fsetxattr:
7182 case TARGET_NR_getxattr:
7183 case TARGET_NR_lgetxattr:
7184 case TARGET_NR_fgetxattr:
7185 case TARGET_NR_listxattr:
7186 case TARGET_NR_llistxattr:
7187 case TARGET_NR_flistxattr:
7188 case TARGET_NR_removexattr:
7189 case TARGET_NR_lremovexattr:
7190 case TARGET_NR_fremovexattr:
7191 ret = -TARGET_EOPNOTSUPP;
7192 break;
7193 #endif
7194 #ifdef TARGET_NR_set_thread_area
7195 case TARGET_NR_set_thread_area:
7196 #if defined(TARGET_MIPS)
7197 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
7198 ret = 0;
7199 break;
7200 #elif defined(TARGET_CRIS)
7201 if (arg1 & 0xff)
7202 ret = -TARGET_EINVAL;
7203 else {
7204 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
7205 ret = 0;
7206 }
7207 break;
7208 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
7209 ret = do_set_thread_area(cpu_env, arg1);
7210 break;
7211 #else
7212 goto unimplemented_nowarn;
7213 #endif
7214 #endif
7215 #ifdef TARGET_NR_get_thread_area
7216 case TARGET_NR_get_thread_area:
7217 #if defined(TARGET_I386) && defined(TARGET_ABI32)
7218 ret = do_get_thread_area(cpu_env, arg1);
7219 #else
7220 goto unimplemented_nowarn;
7221 #endif
7222 #endif
7223 #ifdef TARGET_NR_getdomainname
7224 case TARGET_NR_getdomainname:
7225 goto unimplemented_nowarn;
7226 #endif
7227
7228 #ifdef TARGET_NR_clock_gettime
7229 case TARGET_NR_clock_gettime:
7230 {
7231 struct timespec ts;
7232 ret = get_errno(clock_gettime(arg1, &ts));
7233 if (!is_error(ret)) {
7234 host_to_target_timespec(arg2, &ts);
7235 }
7236 break;
7237 }
7238 #endif
7239 #ifdef TARGET_NR_clock_getres
7240 case TARGET_NR_clock_getres:
7241 {
7242 struct timespec ts;
7243 ret = get_errno(clock_getres(arg1, &ts));
7244 if (!is_error(ret)) {
7245 host_to_target_timespec(arg2, &ts);
7246 }
7247 break;
7248 }
7249 #endif
7250 #ifdef TARGET_NR_clock_nanosleep
7251 case TARGET_NR_clock_nanosleep:
7252 {
7253 struct timespec ts;
7254 target_to_host_timespec(&ts, arg3);
7255 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
7256 if (arg4)
7257 host_to_target_timespec(arg4, &ts);
7258 break;
7259 }
7260 #endif
7261
7262 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
7263 case TARGET_NR_set_tid_address:
7264 ret = get_errno(set_tid_address((int *)g2h(arg1)));
7265 break;
7266 #endif
7267
7268 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
7269 case TARGET_NR_tkill:
7270 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
7271 break;
7272 #endif
7273
7274 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
7275 case TARGET_NR_tgkill:
7276 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
7277 target_to_host_signal(arg3)));
7278 break;
7279 #endif
7280
7281 #ifdef TARGET_NR_set_robust_list
7282 case TARGET_NR_set_robust_list:
7283 goto unimplemented_nowarn;
7284 #endif
7285
7286 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
7287 case TARGET_NR_utimensat:
7288 {
7289 struct timespec *tsp, ts[2];
7290 if (!arg3) {
7291 tsp = NULL;
7292 } else {
7293 target_to_host_timespec(ts, arg3);
7294 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
7295 tsp = ts;
7296 }
7297 if (!arg2)
7298 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
7299 else {
7300 if (!(p = lock_user_string(arg2))) {
7301 ret = -TARGET_EFAULT;
7302 goto fail;
7303 }
7304 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
7305 unlock_user(p, arg2, 0);
7306 }
7307 }
7308 break;
7309 #endif
7310 #if defined(CONFIG_USE_NPTL)
7311 case TARGET_NR_futex:
7312 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
7313 break;
7314 #endif
7315 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
7316 case TARGET_NR_inotify_init:
7317 ret = get_errno(sys_inotify_init());
7318 break;
7319 #endif
7320 #ifdef CONFIG_INOTIFY1
7321 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
7322 case TARGET_NR_inotify_init1:
7323 ret = get_errno(sys_inotify_init1(arg1));
7324 break;
7325 #endif
7326 #endif
7327 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
7328 case TARGET_NR_inotify_add_watch:
7329 p = lock_user_string(arg2);
7330 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
7331 unlock_user(p, arg2, 0);
7332 break;
7333 #endif
7334 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
7335 case TARGET_NR_inotify_rm_watch:
7336 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
7337 break;
7338 #endif
7339
7340 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
7341 case TARGET_NR_mq_open:
7342 {
7343 struct mq_attr posix_mq_attr;
7344
7345 p = lock_user_string(arg1 - 1);
7346 if (arg4 != 0)
7347 copy_from_user_mq_attr (&posix_mq_attr, arg4);
7348 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
7349 unlock_user (p, arg1, 0);
7350 }
7351 break;
7352
7353 case TARGET_NR_mq_unlink:
7354 p = lock_user_string(arg1 - 1);
7355 ret = get_errno(mq_unlink(p));
7356 unlock_user (p, arg1, 0);
7357 break;
7358
7359 case TARGET_NR_mq_timedsend:
7360 {
7361 struct timespec ts;
7362
7363 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7364 if (arg5 != 0) {
7365 target_to_host_timespec(&ts, arg5);
7366 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
7367 host_to_target_timespec(arg5, &ts);
7368 }
7369 else
7370 ret = get_errno(mq_send(arg1, p, arg3, arg4));
7371 unlock_user (p, arg2, arg3);
7372 }
7373 break;
7374
7375 case TARGET_NR_mq_timedreceive:
7376 {
7377 struct timespec ts;
7378 unsigned int prio;
7379
7380 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7381 if (arg5 != 0) {
7382 target_to_host_timespec(&ts, arg5);
7383 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
7384 host_to_target_timespec(arg5, &ts);
7385 }
7386 else
7387 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
7388 unlock_user (p, arg2, arg3);
7389 if (arg4 != 0)
7390 put_user_u32(prio, arg4);
7391 }
7392 break;
7393
7394 /* Not implemented for now... */
7395 /* case TARGET_NR_mq_notify: */
7396 /* break; */
7397
7398 case TARGET_NR_mq_getsetattr:
7399 {
7400 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
7401 ret = 0;
7402 if (arg3 != 0) {
7403 ret = mq_getattr(arg1, &posix_mq_attr_out);
7404 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
7405 }
7406 if (arg2 != 0) {
7407 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
7408 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
7409 }
7410
7411 }
7412 break;
7413 #endif
7414
7415 #ifdef CONFIG_SPLICE
7416 #ifdef TARGET_NR_tee
7417 case TARGET_NR_tee:
7418 {
7419 ret = get_errno(tee(arg1,arg2,arg3,arg4));
7420 }
7421 break;
7422 #endif
7423 #ifdef TARGET_NR_splice
7424 case TARGET_NR_splice:
7425 {
7426 loff_t loff_in, loff_out;
7427 loff_t *ploff_in = NULL, *ploff_out = NULL;
7428 if(arg2) {
7429 get_user_u64(loff_in, arg2);
7430 ploff_in = &loff_in;
7431 }
7432 if(arg4) {
7433 get_user_u64(loff_out, arg2);
7434 ploff_out = &loff_out;
7435 }
7436 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
7437 }
7438 break;
7439 #endif
7440 #ifdef TARGET_NR_vmsplice
7441 case TARGET_NR_vmsplice:
7442 {
7443 int count = arg3;
7444 struct iovec *vec;
7445
7446 vec = alloca(count * sizeof(struct iovec));
7447 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
7448 goto efault;
7449 ret = get_errno(vmsplice(arg1, vec, count, arg4));
7450 unlock_iovec(vec, arg2, count, 0);
7451 }
7452 break;
7453 #endif
7454 #endif /* CONFIG_SPLICE */
7455 #ifdef CONFIG_EVENTFD
7456 #if defined(TARGET_NR_eventfd)
7457 case TARGET_NR_eventfd:
7458 ret = get_errno(eventfd(arg1, 0));
7459 break;
7460 #endif
7461 #if defined(TARGET_NR_eventfd2)
7462 case TARGET_NR_eventfd2:
7463 ret = get_errno(eventfd(arg1, arg2));
7464 break;
7465 #endif
7466 #endif /* CONFIG_EVENTFD */
7467 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
7468 case TARGET_NR_fallocate:
7469 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
7470 break;
7471 #endif
7472 #if defined(CONFIG_SYNC_FILE_RANGE)
7473 #if defined(TARGET_NR_sync_file_range)
7474 case TARGET_NR_sync_file_range:
7475 #if TARGET_ABI_BITS == 32
7476 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
7477 target_offset64(arg4, arg5), arg6));
7478 #else
7479 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
7480 #endif
7481 break;
7482 #endif
7483 #if defined(TARGET_NR_sync_file_range2)
7484 case TARGET_NR_sync_file_range2:
7485 /* This is like sync_file_range but the arguments are reordered */
7486 #if TARGET_ABI_BITS == 32
7487 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
7488 target_offset64(arg5, arg6), arg2));
7489 #else
7490 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
7491 #endif
7492 break;
7493 #endif
7494 #endif
7495 default:
7496 unimplemented:
7497 gemu_log("qemu: Unsupported syscall: %d\n", num);
7498 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
7499 unimplemented_nowarn:
7500 #endif
7501 ret = -TARGET_ENOSYS;
7502 break;
7503 }
7504 fail:
7505 #ifdef DEBUG
7506 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
7507 #endif
7508 if(do_strace)
7509 print_syscall_ret(num, ret);
7510 return ret;
7511 efault:
7512 ret = -TARGET_EFAULT;
7513 goto fail;
7514 }
QEmu