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Merge remote branch 'kwolf/for-anthony' into staging
[qemu.git] / linux-user / syscall.c
blob4412a9b1433562e9f6eec662154267b5e246b8f1
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 #define __NR_sys_sched_getaffinity __NR_sched_getaffinity
239 _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
240 unsigned long *, user_mask_ptr);
241 #define __NR_sys_sched_setaffinity __NR_sched_setaffinity
242 _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
243 unsigned long *, user_mask_ptr);
244
245 static bitmask_transtbl fcntl_flags_tbl[] = {
246 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
247 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
248 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
249 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
250 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
251 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
252 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
253 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
254 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
255 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
256 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
257 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
258 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
259 #if defined(O_DIRECT)
260 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
261 #endif
262 { 0, 0, 0, 0 }
263 };
264
265 #define COPY_UTSNAME_FIELD(dest, src) \
266 do { \
267 /* __NEW_UTS_LEN doesn't include terminating null */ \
268 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
269 (dest)[__NEW_UTS_LEN] = '\0'; \
270 } while (0)
271
272 static int sys_uname(struct new_utsname *buf)
273 {
274 struct utsname uts_buf;
275
276 if (uname(&uts_buf) < 0)
277 return (-1);
278
279 /*
280 * Just in case these have some differences, we
281 * translate utsname to new_utsname (which is the
282 * struct linux kernel uses).
283 */
284
285 bzero(buf, sizeof (*buf));
286 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
287 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
288 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
289 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
290 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
291 #ifdef _GNU_SOURCE
292 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
293 #endif
294 return (0);
295
296 #undef COPY_UTSNAME_FIELD
297 }
298
299 static int sys_getcwd1(char *buf, size_t size)
300 {
301 if (getcwd(buf, size) == NULL) {
302 /* getcwd() sets errno */
303 return (-1);
304 }
305 return strlen(buf)+1;
306 }
307
308 #ifdef CONFIG_ATFILE
309 /*
310 * Host system seems to have atfile syscall stubs available. We
311 * now enable them one by one as specified by target syscall_nr.h.
312 */
313
314 #ifdef TARGET_NR_faccessat
315 static int sys_faccessat(int dirfd, const char *pathname, int mode)
316 {
317 return (faccessat(dirfd, pathname, mode, 0));
318 }
319 #endif
320 #ifdef TARGET_NR_fchmodat
321 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
322 {
323 return (fchmodat(dirfd, pathname, mode, 0));
324 }
325 #endif
326 #if defined(TARGET_NR_fchownat) && defined(USE_UID16)
327 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
328 gid_t group, int flags)
329 {
330 return (fchownat(dirfd, pathname, owner, group, flags));
331 }
332 #endif
333 #ifdef __NR_fstatat64
334 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
335 int flags)
336 {
337 return (fstatat(dirfd, pathname, buf, flags));
338 }
339 #endif
340 #ifdef __NR_newfstatat
341 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
342 int flags)
343 {
344 return (fstatat(dirfd, pathname, buf, flags));
345 }
346 #endif
347 #ifdef TARGET_NR_futimesat
348 static int sys_futimesat(int dirfd, const char *pathname,
349 const struct timeval times[2])
350 {
351 return (futimesat(dirfd, pathname, times));
352 }
353 #endif
354 #ifdef TARGET_NR_linkat
355 static int sys_linkat(int olddirfd, const char *oldpath,
356 int newdirfd, const char *newpath, int flags)
357 {
358 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
359 }
360 #endif
361 #ifdef TARGET_NR_mkdirat
362 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
363 {
364 return (mkdirat(dirfd, pathname, mode));
365 }
366 #endif
367 #ifdef TARGET_NR_mknodat
368 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
369 dev_t dev)
370 {
371 return (mknodat(dirfd, pathname, mode, dev));
372 }
373 #endif
374 #ifdef TARGET_NR_openat
375 static int sys_openat(int dirfd, const char *pathname, int flags, ...)
376 {
377 /*
378 * open(2) has extra parameter 'mode' when called with
379 * flag O_CREAT.
380 */
381 if ((flags & O_CREAT) != 0) {
382 va_list ap;
383 mode_t mode;
384
385 /*
386 * Get the 'mode' parameter and translate it to
387 * host bits.
388 */
389 va_start(ap, flags);
390 mode = va_arg(ap, mode_t);
391 mode = target_to_host_bitmask(mode, fcntl_flags_tbl);
392 va_end(ap);
393
394 return (openat(dirfd, pathname, flags, mode));
395 }
396 return (openat(dirfd, pathname, flags));
397 }
398 #endif
399 #ifdef TARGET_NR_readlinkat
400 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
401 {
402 return (readlinkat(dirfd, pathname, buf, bufsiz));
403 }
404 #endif
405 #ifdef TARGET_NR_renameat
406 static int sys_renameat(int olddirfd, const char *oldpath,
407 int newdirfd, const char *newpath)
408 {
409 return (renameat(olddirfd, oldpath, newdirfd, newpath));
410 }
411 #endif
412 #ifdef TARGET_NR_symlinkat
413 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
414 {
415 return (symlinkat(oldpath, newdirfd, newpath));
416 }
417 #endif
418 #ifdef TARGET_NR_unlinkat
419 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
420 {
421 return (unlinkat(dirfd, pathname, flags));
422 }
423 #endif
424 #else /* !CONFIG_ATFILE */
425
426 /*
427 * Try direct syscalls instead
428 */
429 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
430 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
431 #endif
432 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
433 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
434 #endif
435 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
436 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
437 uid_t,owner,gid_t,group,int,flags)
438 #endif
439 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
440 defined(__NR_fstatat64)
441 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
442 struct stat *,buf,int,flags)
443 #endif
444 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
445 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
446 const struct timeval *,times)
447 #endif
448 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
449 defined(__NR_newfstatat)
450 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
451 struct stat *,buf,int,flags)
452 #endif
453 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
454 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
455 int,newdirfd,const char *,newpath,int,flags)
456 #endif
457 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
458 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
459 #endif
460 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
461 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
462 mode_t,mode,dev_t,dev)
463 #endif
464 #if defined(TARGET_NR_openat) && defined(__NR_openat)
465 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
466 #endif
467 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
468 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
469 char *,buf,size_t,bufsize)
470 #endif
471 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
472 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
473 int,newdirfd,const char *,newpath)
474 #endif
475 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
476 _syscall3(int,sys_symlinkat,const char *,oldpath,
477 int,newdirfd,const char *,newpath)
478 #endif
479 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
480 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
481 #endif
482
483 #endif /* CONFIG_ATFILE */
484
485 #ifdef CONFIG_UTIMENSAT
486 static int sys_utimensat(int dirfd, const char *pathname,
487 const struct timespec times[2], int flags)
488 {
489 if (pathname == NULL)
490 return futimens(dirfd, times);
491 else
492 return utimensat(dirfd, pathname, times, flags);
493 }
494 #else
495 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
496 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
497 const struct timespec *,tsp,int,flags)
498 #endif
499 #endif /* CONFIG_UTIMENSAT */
500
501 #ifdef CONFIG_INOTIFY
502 #include <sys/inotify.h>
503
504 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
505 static int sys_inotify_init(void)
506 {
507 return (inotify_init());
508 }
509 #endif
510 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
511 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
512 {
513 return (inotify_add_watch(fd, pathname, mask));
514 }
515 #endif
516 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
517 static int sys_inotify_rm_watch(int fd, int32_t wd)
518 {
519 return (inotify_rm_watch(fd, wd));
520 }
521 #endif
522 #ifdef CONFIG_INOTIFY1
523 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
524 static int sys_inotify_init1(int flags)
525 {
526 return (inotify_init1(flags));
527 }
528 #endif
529 #endif
530 #else
531 /* Userspace can usually survive runtime without inotify */
532 #undef TARGET_NR_inotify_init
533 #undef TARGET_NR_inotify_init1
534 #undef TARGET_NR_inotify_add_watch
535 #undef TARGET_NR_inotify_rm_watch
536 #endif /* CONFIG_INOTIFY */
537
538 #if defined(TARGET_NR_ppoll)
539 #ifndef __NR_ppoll
540 # define __NR_ppoll -1
541 #endif
542 #define __NR_sys_ppoll __NR_ppoll
543 _syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
544 struct timespec *, timeout, const __sigset_t *, sigmask,
545 size_t, sigsetsize)
546 #endif
547
548 extern int personality(int);
549 extern int flock(int, int);
550 extern int setfsuid(int);
551 extern int setfsgid(int);
552 extern int setgroups(int, gid_t *);
553
554 #define ERRNO_TABLE_SIZE 1200
555
556 /* target_to_host_errno_table[] is initialized from
557 * host_to_target_errno_table[] in syscall_init(). */
558 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
559 };
560
561 /*
562 * This list is the union of errno values overridden in asm-<arch>/errno.h
563 * minus the errnos that are not actually generic to all archs.
564 */
565 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
566 [EIDRM] = TARGET_EIDRM,
567 [ECHRNG] = TARGET_ECHRNG,
568 [EL2NSYNC] = TARGET_EL2NSYNC,
569 [EL3HLT] = TARGET_EL3HLT,
570 [EL3RST] = TARGET_EL3RST,
571 [ELNRNG] = TARGET_ELNRNG,
572 [EUNATCH] = TARGET_EUNATCH,
573 [ENOCSI] = TARGET_ENOCSI,
574 [EL2HLT] = TARGET_EL2HLT,
575 [EDEADLK] = TARGET_EDEADLK,
576 [ENOLCK] = TARGET_ENOLCK,
577 [EBADE] = TARGET_EBADE,
578 [EBADR] = TARGET_EBADR,
579 [EXFULL] = TARGET_EXFULL,
580 [ENOANO] = TARGET_ENOANO,
581 [EBADRQC] = TARGET_EBADRQC,
582 [EBADSLT] = TARGET_EBADSLT,
583 [EBFONT] = TARGET_EBFONT,
584 [ENOSTR] = TARGET_ENOSTR,
585 [ENODATA] = TARGET_ENODATA,
586 [ETIME] = TARGET_ETIME,
587 [ENOSR] = TARGET_ENOSR,
588 [ENONET] = TARGET_ENONET,
589 [ENOPKG] = TARGET_ENOPKG,
590 [EREMOTE] = TARGET_EREMOTE,
591 [ENOLINK] = TARGET_ENOLINK,
592 [EADV] = TARGET_EADV,
593 [ESRMNT] = TARGET_ESRMNT,
594 [ECOMM] = TARGET_ECOMM,
595 [EPROTO] = TARGET_EPROTO,
596 [EDOTDOT] = TARGET_EDOTDOT,
597 [EMULTIHOP] = TARGET_EMULTIHOP,
598 [EBADMSG] = TARGET_EBADMSG,
599 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
600 [EOVERFLOW] = TARGET_EOVERFLOW,
601 [ENOTUNIQ] = TARGET_ENOTUNIQ,
602 [EBADFD] = TARGET_EBADFD,
603 [EREMCHG] = TARGET_EREMCHG,
604 [ELIBACC] = TARGET_ELIBACC,
605 [ELIBBAD] = TARGET_ELIBBAD,
606 [ELIBSCN] = TARGET_ELIBSCN,
607 [ELIBMAX] = TARGET_ELIBMAX,
608 [ELIBEXEC] = TARGET_ELIBEXEC,
609 [EILSEQ] = TARGET_EILSEQ,
610 [ENOSYS] = TARGET_ENOSYS,
611 [ELOOP] = TARGET_ELOOP,
612 [ERESTART] = TARGET_ERESTART,
613 [ESTRPIPE] = TARGET_ESTRPIPE,
614 [ENOTEMPTY] = TARGET_ENOTEMPTY,
615 [EUSERS] = TARGET_EUSERS,
616 [ENOTSOCK] = TARGET_ENOTSOCK,
617 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
618 [EMSGSIZE] = TARGET_EMSGSIZE,
619 [EPROTOTYPE] = TARGET_EPROTOTYPE,
620 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
621 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
622 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
623 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
624 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
625 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
626 [EADDRINUSE] = TARGET_EADDRINUSE,
627 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
628 [ENETDOWN] = TARGET_ENETDOWN,
629 [ENETUNREACH] = TARGET_ENETUNREACH,
630 [ENETRESET] = TARGET_ENETRESET,
631 [ECONNABORTED] = TARGET_ECONNABORTED,
632 [ECONNRESET] = TARGET_ECONNRESET,
633 [ENOBUFS] = TARGET_ENOBUFS,
634 [EISCONN] = TARGET_EISCONN,
635 [ENOTCONN] = TARGET_ENOTCONN,
636 [EUCLEAN] = TARGET_EUCLEAN,
637 [ENOTNAM] = TARGET_ENOTNAM,
638 [ENAVAIL] = TARGET_ENAVAIL,
639 [EISNAM] = TARGET_EISNAM,
640 [EREMOTEIO] = TARGET_EREMOTEIO,
641 [ESHUTDOWN] = TARGET_ESHUTDOWN,
642 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
643 [ETIMEDOUT] = TARGET_ETIMEDOUT,
644 [ECONNREFUSED] = TARGET_ECONNREFUSED,
645 [EHOSTDOWN] = TARGET_EHOSTDOWN,
646 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
647 [EALREADY] = TARGET_EALREADY,
648 [EINPROGRESS] = TARGET_EINPROGRESS,
649 [ESTALE] = TARGET_ESTALE,
650 [ECANCELED] = TARGET_ECANCELED,
651 [ENOMEDIUM] = TARGET_ENOMEDIUM,
652 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
653 #ifdef ENOKEY
654 [ENOKEY] = TARGET_ENOKEY,
655 #endif
656 #ifdef EKEYEXPIRED
657 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
658 #endif
659 #ifdef EKEYREVOKED
660 [EKEYREVOKED] = TARGET_EKEYREVOKED,
661 #endif
662 #ifdef EKEYREJECTED
663 [EKEYREJECTED] = TARGET_EKEYREJECTED,
664 #endif
665 #ifdef EOWNERDEAD
666 [EOWNERDEAD] = TARGET_EOWNERDEAD,
667 #endif
668 #ifdef ENOTRECOVERABLE
669 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
670 #endif
671 };
672
673 static inline int host_to_target_errno(int err)
674 {
675 if(host_to_target_errno_table[err])
676 return host_to_target_errno_table[err];
677 return err;
678 }
679
680 static inline int target_to_host_errno(int err)
681 {
682 if (target_to_host_errno_table[err])
683 return target_to_host_errno_table[err];
684 return err;
685 }
686
687 static inline abi_long get_errno(abi_long ret)
688 {
689 if (ret == -1)
690 return -host_to_target_errno(errno);
691 else
692 return ret;
693 }
694
695 static inline int is_error(abi_long ret)
696 {
697 return (abi_ulong)ret >= (abi_ulong)(-4096);
698 }
699
700 char *target_strerror(int err)
701 {
702 return strerror(target_to_host_errno(err));
703 }
704
705 static abi_ulong target_brk;
706 static abi_ulong target_original_brk;
707
708 void target_set_brk(abi_ulong new_brk)
709 {
710 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
711 }
712
713 /* do_brk() must return target values and target errnos. */
714 abi_long do_brk(abi_ulong new_brk)
715 {
716 abi_ulong brk_page;
717 abi_long mapped_addr;
718 int new_alloc_size;
719
720 if (!new_brk)
721 return target_brk;
722 if (new_brk < target_original_brk)
723 return target_brk;
724
725 brk_page = HOST_PAGE_ALIGN(target_brk);
726
727 /* If the new brk is less than this, set it and we're done... */
728 if (new_brk < brk_page) {
729 target_brk = new_brk;
730 return target_brk;
731 }
732
733 /* We need to allocate more memory after the brk... */
734 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
735 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
736 PROT_READ|PROT_WRITE,
737 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
738
739 #if defined(TARGET_ALPHA)
740 /* We (partially) emulate OSF/1 on Alpha, which requires we
741 return a proper errno, not an unchanged brk value. */
742 if (is_error(mapped_addr)) {
743 return -TARGET_ENOMEM;
744 }
745 #endif
746
747 if (!is_error(mapped_addr)) {
748 target_brk = new_brk;
749 }
750 return target_brk;
751 }
752
753 static inline abi_long copy_from_user_fdset(fd_set *fds,
754 abi_ulong target_fds_addr,
755 int n)
756 {
757 int i, nw, j, k;
758 abi_ulong b, *target_fds;
759
760 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
761 if (!(target_fds = lock_user(VERIFY_READ,
762 target_fds_addr,
763 sizeof(abi_ulong) * nw,
764 1)))
765 return -TARGET_EFAULT;
766
767 FD_ZERO(fds);
768 k = 0;
769 for (i = 0; i < nw; i++) {
770 /* grab the abi_ulong */
771 __get_user(b, &target_fds[i]);
772 for (j = 0; j < TARGET_ABI_BITS; j++) {
773 /* check the bit inside the abi_ulong */
774 if ((b >> j) & 1)
775 FD_SET(k, fds);
776 k++;
777 }
778 }
779
780 unlock_user(target_fds, target_fds_addr, 0);
781
782 return 0;
783 }
784
785 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
786 const fd_set *fds,
787 int n)
788 {
789 int i, nw, j, k;
790 abi_long v;
791 abi_ulong *target_fds;
792
793 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
794 if (!(target_fds = lock_user(VERIFY_WRITE,
795 target_fds_addr,
796 sizeof(abi_ulong) * nw,
797 0)))
798 return -TARGET_EFAULT;
799
800 k = 0;
801 for (i = 0; i < nw; i++) {
802 v = 0;
803 for (j = 0; j < TARGET_ABI_BITS; j++) {
804 v |= ((FD_ISSET(k, fds) != 0) << j);
805 k++;
806 }
807 __put_user(v, &target_fds[i]);
808 }
809
810 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
811
812 return 0;
813 }
814
815 #if defined(__alpha__)
816 #define HOST_HZ 1024
817 #else
818 #define HOST_HZ 100
819 #endif
820
821 static inline abi_long host_to_target_clock_t(long ticks)
822 {
823 #if HOST_HZ == TARGET_HZ
824 return ticks;
825 #else
826 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
827 #endif
828 }
829
830 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
831 const struct rusage *rusage)
832 {
833 struct target_rusage *target_rusage;
834
835 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
836 return -TARGET_EFAULT;
837 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
838 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
839 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
840 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
841 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
842 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
843 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
844 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
845 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
846 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
847 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
848 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
849 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
850 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
851 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
852 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
853 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
854 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
855 unlock_user_struct(target_rusage, target_addr, 1);
856
857 return 0;
858 }
859
860 static inline rlim_t target_to_host_rlim(target_ulong target_rlim)
861 {
862 if (target_rlim == TARGET_RLIM_INFINITY)
863 return RLIM_INFINITY;
864 else
865 return tswapl(target_rlim);
866 }
867
868 static inline target_ulong host_to_target_rlim(rlim_t rlim)
869 {
870 if (rlim == RLIM_INFINITY || rlim != (target_long)rlim)
871 return TARGET_RLIM_INFINITY;
872 else
873 return tswapl(rlim);
874 }
875
876 static inline abi_long copy_from_user_timeval(struct timeval *tv,
877 abi_ulong target_tv_addr)
878 {
879 struct target_timeval *target_tv;
880
881 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
882 return -TARGET_EFAULT;
883
884 __get_user(tv->tv_sec, &target_tv->tv_sec);
885 __get_user(tv->tv_usec, &target_tv->tv_usec);
886
887 unlock_user_struct(target_tv, target_tv_addr, 0);
888
889 return 0;
890 }
891
892 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
893 const struct timeval *tv)
894 {
895 struct target_timeval *target_tv;
896
897 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
898 return -TARGET_EFAULT;
899
900 __put_user(tv->tv_sec, &target_tv->tv_sec);
901 __put_user(tv->tv_usec, &target_tv->tv_usec);
902
903 unlock_user_struct(target_tv, target_tv_addr, 1);
904
905 return 0;
906 }
907
908 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
909 #include <mqueue.h>
910
911 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
912 abi_ulong target_mq_attr_addr)
913 {
914 struct target_mq_attr *target_mq_attr;
915
916 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
917 target_mq_attr_addr, 1))
918 return -TARGET_EFAULT;
919
920 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
921 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
922 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
923 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
924
925 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
926
927 return 0;
928 }
929
930 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
931 const struct mq_attr *attr)
932 {
933 struct target_mq_attr *target_mq_attr;
934
935 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
936 target_mq_attr_addr, 0))
937 return -TARGET_EFAULT;
938
939 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
940 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
941 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
942 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
943
944 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
945
946 return 0;
947 }
948 #endif
949
950 /* do_select() must return target values and target errnos. */
951 static abi_long do_select(int n,
952 abi_ulong rfd_addr, abi_ulong wfd_addr,
953 abi_ulong efd_addr, abi_ulong target_tv_addr)
954 {
955 fd_set rfds, wfds, efds;
956 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
957 struct timeval tv, *tv_ptr;
958 abi_long ret;
959
960 if (rfd_addr) {
961 if (copy_from_user_fdset(&rfds, rfd_addr, n))
962 return -TARGET_EFAULT;
963 rfds_ptr = &rfds;
964 } else {
965 rfds_ptr = NULL;
966 }
967 if (wfd_addr) {
968 if (copy_from_user_fdset(&wfds, wfd_addr, n))
969 return -TARGET_EFAULT;
970 wfds_ptr = &wfds;
971 } else {
972 wfds_ptr = NULL;
973 }
974 if (efd_addr) {
975 if (copy_from_user_fdset(&efds, efd_addr, n))
976 return -TARGET_EFAULT;
977 efds_ptr = &efds;
978 } else {
979 efds_ptr = NULL;
980 }
981
982 if (target_tv_addr) {
983 if (copy_from_user_timeval(&tv, target_tv_addr))
984 return -TARGET_EFAULT;
985 tv_ptr = &tv;
986 } else {
987 tv_ptr = NULL;
988 }
989
990 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
991
992 if (!is_error(ret)) {
993 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
994 return -TARGET_EFAULT;
995 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
996 return -TARGET_EFAULT;
997 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
998 return -TARGET_EFAULT;
999
1000 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
1001 return -TARGET_EFAULT;
1002 }
1003
1004 return ret;
1005 }
1006
1007 static abi_long do_pipe2(int host_pipe[], int flags)
1008 {
1009 #ifdef CONFIG_PIPE2
1010 return pipe2(host_pipe, flags);
1011 #else
1012 return -ENOSYS;
1013 #endif
1014 }
1015
1016 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1017 int flags, int is_pipe2)
1018 {
1019 int host_pipe[2];
1020 abi_long ret;
1021 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1022
1023 if (is_error(ret))
1024 return get_errno(ret);
1025
1026 /* Several targets have special calling conventions for the original
1027 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1028 if (!is_pipe2) {
1029 #if defined(TARGET_ALPHA)
1030 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1031 return host_pipe[0];
1032 #elif defined(TARGET_MIPS)
1033 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1034 return host_pipe[0];
1035 #elif defined(TARGET_SH4)
1036 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1037 return host_pipe[0];
1038 #endif
1039 }
1040
1041 if (put_user_s32(host_pipe[0], pipedes)
1042 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1043 return -TARGET_EFAULT;
1044 return get_errno(ret);
1045 }
1046
1047 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1048 abi_ulong target_addr,
1049 socklen_t len)
1050 {
1051 struct target_ip_mreqn *target_smreqn;
1052
1053 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1054 if (!target_smreqn)
1055 return -TARGET_EFAULT;
1056 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1057 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1058 if (len == sizeof(struct target_ip_mreqn))
1059 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex);
1060 unlock_user(target_smreqn, target_addr, 0);
1061
1062 return 0;
1063 }
1064
1065 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1066 abi_ulong target_addr,
1067 socklen_t len)
1068 {
1069 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1070 sa_family_t sa_family;
1071 struct target_sockaddr *target_saddr;
1072
1073 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1074 if (!target_saddr)
1075 return -TARGET_EFAULT;
1076
1077 sa_family = tswap16(target_saddr->sa_family);
1078
1079 /* Oops. The caller might send a incomplete sun_path; sun_path
1080 * must be terminated by \0 (see the manual page), but
1081 * unfortunately it is quite common to specify sockaddr_un
1082 * length as "strlen(x->sun_path)" while it should be
1083 * "strlen(...) + 1". We'll fix that here if needed.
1084 * Linux kernel has a similar feature.
1085 */
1086
1087 if (sa_family == AF_UNIX) {
1088 if (len < unix_maxlen && len > 0) {
1089 char *cp = (char*)target_saddr;
1090
1091 if ( cp[len-1] && !cp[len] )
1092 len++;
1093 }
1094 if (len > unix_maxlen)
1095 len = unix_maxlen;
1096 }
1097
1098 memcpy(addr, target_saddr, len);
1099 addr->sa_family = sa_family;
1100 unlock_user(target_saddr, target_addr, 0);
1101
1102 return 0;
1103 }
1104
1105 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1106 struct sockaddr *addr,
1107 socklen_t len)
1108 {
1109 struct target_sockaddr *target_saddr;
1110
1111 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1112 if (!target_saddr)
1113 return -TARGET_EFAULT;
1114 memcpy(target_saddr, addr, len);
1115 target_saddr->sa_family = tswap16(addr->sa_family);
1116 unlock_user(target_saddr, target_addr, len);
1117
1118 return 0;
1119 }
1120
1121 /* ??? Should this also swap msgh->name? */
1122 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1123 struct target_msghdr *target_msgh)
1124 {
1125 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1126 abi_long msg_controllen;
1127 abi_ulong target_cmsg_addr;
1128 struct target_cmsghdr *target_cmsg;
1129 socklen_t space = 0;
1130
1131 msg_controllen = tswapl(target_msgh->msg_controllen);
1132 if (msg_controllen < sizeof (struct target_cmsghdr))
1133 goto the_end;
1134 target_cmsg_addr = tswapl(target_msgh->msg_control);
1135 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1136 if (!target_cmsg)
1137 return -TARGET_EFAULT;
1138
1139 while (cmsg && target_cmsg) {
1140 void *data = CMSG_DATA(cmsg);
1141 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1142
1143 int len = tswapl(target_cmsg->cmsg_len)
1144 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1145
1146 space += CMSG_SPACE(len);
1147 if (space > msgh->msg_controllen) {
1148 space -= CMSG_SPACE(len);
1149 gemu_log("Host cmsg overflow\n");
1150 break;
1151 }
1152
1153 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1154 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1155 cmsg->cmsg_len = CMSG_LEN(len);
1156
1157 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1158 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1159 memcpy(data, target_data, len);
1160 } else {
1161 int *fd = (int *)data;
1162 int *target_fd = (int *)target_data;
1163 int i, numfds = len / sizeof(int);
1164
1165 for (i = 0; i < numfds; i++)
1166 fd[i] = tswap32(target_fd[i]);
1167 }
1168
1169 cmsg = CMSG_NXTHDR(msgh, cmsg);
1170 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1171 }
1172 unlock_user(target_cmsg, target_cmsg_addr, 0);
1173 the_end:
1174 msgh->msg_controllen = space;
1175 return 0;
1176 }
1177
1178 /* ??? Should this also swap msgh->name? */
1179 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1180 struct msghdr *msgh)
1181 {
1182 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1183 abi_long msg_controllen;
1184 abi_ulong target_cmsg_addr;
1185 struct target_cmsghdr *target_cmsg;
1186 socklen_t space = 0;
1187
1188 msg_controllen = tswapl(target_msgh->msg_controllen);
1189 if (msg_controllen < sizeof (struct target_cmsghdr))
1190 goto the_end;
1191 target_cmsg_addr = tswapl(target_msgh->msg_control);
1192 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1193 if (!target_cmsg)
1194 return -TARGET_EFAULT;
1195
1196 while (cmsg && target_cmsg) {
1197 void *data = CMSG_DATA(cmsg);
1198 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1199
1200 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1201
1202 space += TARGET_CMSG_SPACE(len);
1203 if (space > msg_controllen) {
1204 space -= TARGET_CMSG_SPACE(len);
1205 gemu_log("Target cmsg overflow\n");
1206 break;
1207 }
1208
1209 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1210 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1211 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
1212
1213 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1214 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1215 memcpy(target_data, data, len);
1216 } else {
1217 int *fd = (int *)data;
1218 int *target_fd = (int *)target_data;
1219 int i, numfds = len / sizeof(int);
1220
1221 for (i = 0; i < numfds; i++)
1222 target_fd[i] = tswap32(fd[i]);
1223 }
1224
1225 cmsg = CMSG_NXTHDR(msgh, cmsg);
1226 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1227 }
1228 unlock_user(target_cmsg, target_cmsg_addr, space);
1229 the_end:
1230 target_msgh->msg_controllen = tswapl(space);
1231 return 0;
1232 }
1233
1234 /* do_setsockopt() Must return target values and target errnos. */
1235 static abi_long do_setsockopt(int sockfd, int level, int optname,
1236 abi_ulong optval_addr, socklen_t optlen)
1237 {
1238 abi_long ret;
1239 int val;
1240 struct ip_mreqn *ip_mreq;
1241 struct ip_mreq_source *ip_mreq_source;
1242
1243 switch(level) {
1244 case SOL_TCP:
1245 /* TCP options all take an 'int' value. */
1246 if (optlen < sizeof(uint32_t))
1247 return -TARGET_EINVAL;
1248
1249 if (get_user_u32(val, optval_addr))
1250 return -TARGET_EFAULT;
1251 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1252 break;
1253 case SOL_IP:
1254 switch(optname) {
1255 case IP_TOS:
1256 case IP_TTL:
1257 case IP_HDRINCL:
1258 case IP_ROUTER_ALERT:
1259 case IP_RECVOPTS:
1260 case IP_RETOPTS:
1261 case IP_PKTINFO:
1262 case IP_MTU_DISCOVER:
1263 case IP_RECVERR:
1264 case IP_RECVTOS:
1265 #ifdef IP_FREEBIND
1266 case IP_FREEBIND:
1267 #endif
1268 case IP_MULTICAST_TTL:
1269 case IP_MULTICAST_LOOP:
1270 val = 0;
1271 if (optlen >= sizeof(uint32_t)) {
1272 if (get_user_u32(val, optval_addr))
1273 return -TARGET_EFAULT;
1274 } else if (optlen >= 1) {
1275 if (get_user_u8(val, optval_addr))
1276 return -TARGET_EFAULT;
1277 }
1278 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1279 break;
1280 case IP_ADD_MEMBERSHIP:
1281 case IP_DROP_MEMBERSHIP:
1282 if (optlen < sizeof (struct target_ip_mreq) ||
1283 optlen > sizeof (struct target_ip_mreqn))
1284 return -TARGET_EINVAL;
1285
1286 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1287 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1288 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1289 break;
1290
1291 case IP_BLOCK_SOURCE:
1292 case IP_UNBLOCK_SOURCE:
1293 case IP_ADD_SOURCE_MEMBERSHIP:
1294 case IP_DROP_SOURCE_MEMBERSHIP:
1295 if (optlen != sizeof (struct target_ip_mreq_source))
1296 return -TARGET_EINVAL;
1297
1298 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1299 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1300 unlock_user (ip_mreq_source, optval_addr, 0);
1301 break;
1302
1303 default:
1304 goto unimplemented;
1305 }
1306 break;
1307 case TARGET_SOL_SOCKET:
1308 switch (optname) {
1309 /* Options with 'int' argument. */
1310 case TARGET_SO_DEBUG:
1311 optname = SO_DEBUG;
1312 break;
1313 case TARGET_SO_REUSEADDR:
1314 optname = SO_REUSEADDR;
1315 break;
1316 case TARGET_SO_TYPE:
1317 optname = SO_TYPE;
1318 break;
1319 case TARGET_SO_ERROR:
1320 optname = SO_ERROR;
1321 break;
1322 case TARGET_SO_DONTROUTE:
1323 optname = SO_DONTROUTE;
1324 break;
1325 case TARGET_SO_BROADCAST:
1326 optname = SO_BROADCAST;
1327 break;
1328 case TARGET_SO_SNDBUF:
1329 optname = SO_SNDBUF;
1330 break;
1331 case TARGET_SO_RCVBUF:
1332 optname = SO_RCVBUF;
1333 break;
1334 case TARGET_SO_KEEPALIVE:
1335 optname = SO_KEEPALIVE;
1336 break;
1337 case TARGET_SO_OOBINLINE:
1338 optname = SO_OOBINLINE;
1339 break;
1340 case TARGET_SO_NO_CHECK:
1341 optname = SO_NO_CHECK;
1342 break;
1343 case TARGET_SO_PRIORITY:
1344 optname = SO_PRIORITY;
1345 break;
1346 #ifdef SO_BSDCOMPAT
1347 case TARGET_SO_BSDCOMPAT:
1348 optname = SO_BSDCOMPAT;
1349 break;
1350 #endif
1351 case TARGET_SO_PASSCRED:
1352 optname = SO_PASSCRED;
1353 break;
1354 case TARGET_SO_TIMESTAMP:
1355 optname = SO_TIMESTAMP;
1356 break;
1357 case TARGET_SO_RCVLOWAT:
1358 optname = SO_RCVLOWAT;
1359 break;
1360 case TARGET_SO_RCVTIMEO:
1361 optname = SO_RCVTIMEO;
1362 break;
1363 case TARGET_SO_SNDTIMEO:
1364 optname = SO_SNDTIMEO;
1365 break;
1366 break;
1367 default:
1368 goto unimplemented;
1369 }
1370 if (optlen < sizeof(uint32_t))
1371 return -TARGET_EINVAL;
1372
1373 if (get_user_u32(val, optval_addr))
1374 return -TARGET_EFAULT;
1375 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1376 break;
1377 default:
1378 unimplemented:
1379 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
1380 ret = -TARGET_ENOPROTOOPT;
1381 }
1382 return ret;
1383 }
1384
1385 /* do_getsockopt() Must return target values and target errnos. */
1386 static abi_long do_getsockopt(int sockfd, int level, int optname,
1387 abi_ulong optval_addr, abi_ulong optlen)
1388 {
1389 abi_long ret;
1390 int len, val;
1391 socklen_t lv;
1392
1393 switch(level) {
1394 case TARGET_SOL_SOCKET:
1395 level = SOL_SOCKET;
1396 switch (optname) {
1397 /* These don't just return a single integer */
1398 case TARGET_SO_LINGER:
1399 case TARGET_SO_RCVTIMEO:
1400 case TARGET_SO_SNDTIMEO:
1401 case TARGET_SO_PEERCRED:
1402 case TARGET_SO_PEERNAME:
1403 goto unimplemented;
1404 /* Options with 'int' argument. */
1405 case TARGET_SO_DEBUG:
1406 optname = SO_DEBUG;
1407 goto int_case;
1408 case TARGET_SO_REUSEADDR:
1409 optname = SO_REUSEADDR;
1410 goto int_case;
1411 case TARGET_SO_TYPE:
1412 optname = SO_TYPE;
1413 goto int_case;
1414 case TARGET_SO_ERROR:
1415 optname = SO_ERROR;
1416 goto int_case;
1417 case TARGET_SO_DONTROUTE:
1418 optname = SO_DONTROUTE;
1419 goto int_case;
1420 case TARGET_SO_BROADCAST:
1421 optname = SO_BROADCAST;
1422 goto int_case;
1423 case TARGET_SO_SNDBUF:
1424 optname = SO_SNDBUF;
1425 goto int_case;
1426 case TARGET_SO_RCVBUF:
1427 optname = SO_RCVBUF;
1428 goto int_case;
1429 case TARGET_SO_KEEPALIVE:
1430 optname = SO_KEEPALIVE;
1431 goto int_case;
1432 case TARGET_SO_OOBINLINE:
1433 optname = SO_OOBINLINE;
1434 goto int_case;
1435 case TARGET_SO_NO_CHECK:
1436 optname = SO_NO_CHECK;
1437 goto int_case;
1438 case TARGET_SO_PRIORITY:
1439 optname = SO_PRIORITY;
1440 goto int_case;
1441 #ifdef SO_BSDCOMPAT
1442 case TARGET_SO_BSDCOMPAT:
1443 optname = SO_BSDCOMPAT;
1444 goto int_case;
1445 #endif
1446 case TARGET_SO_PASSCRED:
1447 optname = SO_PASSCRED;
1448 goto int_case;
1449 case TARGET_SO_TIMESTAMP:
1450 optname = SO_TIMESTAMP;
1451 goto int_case;
1452 case TARGET_SO_RCVLOWAT:
1453 optname = SO_RCVLOWAT;
1454 goto int_case;
1455 default:
1456 goto int_case;
1457 }
1458 break;
1459 case SOL_TCP:
1460 /* TCP options all take an 'int' value. */
1461 int_case:
1462 if (get_user_u32(len, optlen))
1463 return -TARGET_EFAULT;
1464 if (len < 0)
1465 return -TARGET_EINVAL;
1466 lv = sizeof(lv);
1467 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1468 if (ret < 0)
1469 return ret;
1470 if (len > lv)
1471 len = lv;
1472 if (len == 4) {
1473 if (put_user_u32(val, optval_addr))
1474 return -TARGET_EFAULT;
1475 } else {
1476 if (put_user_u8(val, optval_addr))
1477 return -TARGET_EFAULT;
1478 }
1479 if (put_user_u32(len, optlen))
1480 return -TARGET_EFAULT;
1481 break;
1482 case SOL_IP:
1483 switch(optname) {
1484 case IP_TOS:
1485 case IP_TTL:
1486 case IP_HDRINCL:
1487 case IP_ROUTER_ALERT:
1488 case IP_RECVOPTS:
1489 case IP_RETOPTS:
1490 case IP_PKTINFO:
1491 case IP_MTU_DISCOVER:
1492 case IP_RECVERR:
1493 case IP_RECVTOS:
1494 #ifdef IP_FREEBIND
1495 case IP_FREEBIND:
1496 #endif
1497 case IP_MULTICAST_TTL:
1498 case IP_MULTICAST_LOOP:
1499 if (get_user_u32(len, optlen))
1500 return -TARGET_EFAULT;
1501 if (len < 0)
1502 return -TARGET_EINVAL;
1503 lv = sizeof(lv);
1504 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1505 if (ret < 0)
1506 return ret;
1507 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1508 len = 1;
1509 if (put_user_u32(len, optlen)
1510 || put_user_u8(val, optval_addr))
1511 return -TARGET_EFAULT;
1512 } else {
1513 if (len > sizeof(int))
1514 len = sizeof(int);
1515 if (put_user_u32(len, optlen)
1516 || put_user_u32(val, optval_addr))
1517 return -TARGET_EFAULT;
1518 }
1519 break;
1520 default:
1521 ret = -TARGET_ENOPROTOOPT;
1522 break;
1523 }
1524 break;
1525 default:
1526 unimplemented:
1527 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1528 level, optname);
1529 ret = -TARGET_EOPNOTSUPP;
1530 break;
1531 }
1532 return ret;
1533 }
1534
1535 /* FIXME
1536 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1537 * other lock functions have a return code of 0 for failure.
1538 */
1539 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1540 int count, int copy)
1541 {
1542 struct target_iovec *target_vec;
1543 abi_ulong base;
1544 int i;
1545
1546 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1547 if (!target_vec)
1548 return -TARGET_EFAULT;
1549 for(i = 0;i < count; i++) {
1550 base = tswapl(target_vec[i].iov_base);
1551 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1552 if (vec[i].iov_len != 0) {
1553 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1554 /* Don't check lock_user return value. We must call writev even
1555 if a element has invalid base address. */
1556 } else {
1557 /* zero length pointer is ignored */
1558 vec[i].iov_base = NULL;
1559 }
1560 }
1561 unlock_user (target_vec, target_addr, 0);
1562 return 0;
1563 }
1564
1565 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1566 int count, int copy)
1567 {
1568 struct target_iovec *target_vec;
1569 abi_ulong base;
1570 int i;
1571
1572 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1573 if (!target_vec)
1574 return -TARGET_EFAULT;
1575 for(i = 0;i < count; i++) {
1576 if (target_vec[i].iov_base) {
1577 base = tswapl(target_vec[i].iov_base);
1578 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1579 }
1580 }
1581 unlock_user (target_vec, target_addr, 0);
1582
1583 return 0;
1584 }
1585
1586 /* do_socket() Must return target values and target errnos. */
1587 static abi_long do_socket(int domain, int type, int protocol)
1588 {
1589 #if defined(TARGET_MIPS)
1590 switch(type) {
1591 case TARGET_SOCK_DGRAM:
1592 type = SOCK_DGRAM;
1593 break;
1594 case TARGET_SOCK_STREAM:
1595 type = SOCK_STREAM;
1596 break;
1597 case TARGET_SOCK_RAW:
1598 type = SOCK_RAW;
1599 break;
1600 case TARGET_SOCK_RDM:
1601 type = SOCK_RDM;
1602 break;
1603 case TARGET_SOCK_SEQPACKET:
1604 type = SOCK_SEQPACKET;
1605 break;
1606 case TARGET_SOCK_PACKET:
1607 type = SOCK_PACKET;
1608 break;
1609 }
1610 #endif
1611 if (domain == PF_NETLINK)
1612 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1613 return get_errno(socket(domain, type, protocol));
1614 }
1615
1616 /* do_bind() Must return target values and target errnos. */
1617 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1618 socklen_t addrlen)
1619 {
1620 void *addr;
1621 abi_long ret;
1622
1623 if ((int)addrlen < 0) {
1624 return -TARGET_EINVAL;
1625 }
1626
1627 addr = alloca(addrlen+1);
1628
1629 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1630 if (ret)
1631 return ret;
1632
1633 return get_errno(bind(sockfd, addr, addrlen));
1634 }
1635
1636 /* do_connect() Must return target values and target errnos. */
1637 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1638 socklen_t addrlen)
1639 {
1640 void *addr;
1641 abi_long ret;
1642
1643 if ((int)addrlen < 0) {
1644 return -TARGET_EINVAL;
1645 }
1646
1647 addr = alloca(addrlen);
1648
1649 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1650 if (ret)
1651 return ret;
1652
1653 return get_errno(connect(sockfd, addr, addrlen));
1654 }
1655
1656 /* do_sendrecvmsg() Must return target values and target errnos. */
1657 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1658 int flags, int send)
1659 {
1660 abi_long ret, len;
1661 struct target_msghdr *msgp;
1662 struct msghdr msg;
1663 int count;
1664 struct iovec *vec;
1665 abi_ulong target_vec;
1666
1667 /* FIXME */
1668 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1669 msgp,
1670 target_msg,
1671 send ? 1 : 0))
1672 return -TARGET_EFAULT;
1673 if (msgp->msg_name) {
1674 msg.msg_namelen = tswap32(msgp->msg_namelen);
1675 msg.msg_name = alloca(msg.msg_namelen);
1676 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1677 msg.msg_namelen);
1678 if (ret) {
1679 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1680 return ret;
1681 }
1682 } else {
1683 msg.msg_name = NULL;
1684 msg.msg_namelen = 0;
1685 }
1686 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1687 msg.msg_control = alloca(msg.msg_controllen);
1688 msg.msg_flags = tswap32(msgp->msg_flags);
1689
1690 count = tswapl(msgp->msg_iovlen);
1691 vec = alloca(count * sizeof(struct iovec));
1692 target_vec = tswapl(msgp->msg_iov);
1693 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1694 msg.msg_iovlen = count;
1695 msg.msg_iov = vec;
1696
1697 if (send) {
1698 ret = target_to_host_cmsg(&msg, msgp);
1699 if (ret == 0)
1700 ret = get_errno(sendmsg(fd, &msg, flags));
1701 } else {
1702 ret = get_errno(recvmsg(fd, &msg, flags));
1703 if (!is_error(ret)) {
1704 len = ret;
1705 ret = host_to_target_cmsg(msgp, &msg);
1706 if (!is_error(ret))
1707 ret = len;
1708 }
1709 }
1710 unlock_iovec(vec, target_vec, count, !send);
1711 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1712 return ret;
1713 }
1714
1715 /* do_accept() Must return target values and target errnos. */
1716 static abi_long do_accept(int fd, abi_ulong target_addr,
1717 abi_ulong target_addrlen_addr)
1718 {
1719 socklen_t addrlen;
1720 void *addr;
1721 abi_long ret;
1722
1723 if (target_addr == 0)
1724 return get_errno(accept(fd, NULL, NULL));
1725
1726 /* linux returns EINVAL if addrlen pointer is invalid */
1727 if (get_user_u32(addrlen, target_addrlen_addr))
1728 return -TARGET_EINVAL;
1729
1730 if ((int)addrlen < 0) {
1731 return -TARGET_EINVAL;
1732 }
1733
1734 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1735 return -TARGET_EINVAL;
1736
1737 addr = alloca(addrlen);
1738
1739 ret = get_errno(accept(fd, addr, &addrlen));
1740 if (!is_error(ret)) {
1741 host_to_target_sockaddr(target_addr, addr, addrlen);
1742 if (put_user_u32(addrlen, target_addrlen_addr))
1743 ret = -TARGET_EFAULT;
1744 }
1745 return ret;
1746 }
1747
1748 /* do_getpeername() Must return target values and target errnos. */
1749 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1750 abi_ulong target_addrlen_addr)
1751 {
1752 socklen_t addrlen;
1753 void *addr;
1754 abi_long ret;
1755
1756 if (get_user_u32(addrlen, target_addrlen_addr))
1757 return -TARGET_EFAULT;
1758
1759 if ((int)addrlen < 0) {
1760 return -TARGET_EINVAL;
1761 }
1762
1763 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1764 return -TARGET_EFAULT;
1765
1766 addr = alloca(addrlen);
1767
1768 ret = get_errno(getpeername(fd, addr, &addrlen));
1769 if (!is_error(ret)) {
1770 host_to_target_sockaddr(target_addr, addr, addrlen);
1771 if (put_user_u32(addrlen, target_addrlen_addr))
1772 ret = -TARGET_EFAULT;
1773 }
1774 return ret;
1775 }
1776
1777 /* do_getsockname() Must return target values and target errnos. */
1778 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1779 abi_ulong target_addrlen_addr)
1780 {
1781 socklen_t addrlen;
1782 void *addr;
1783 abi_long ret;
1784
1785 if (get_user_u32(addrlen, target_addrlen_addr))
1786 return -TARGET_EFAULT;
1787
1788 if ((int)addrlen < 0) {
1789 return -TARGET_EINVAL;
1790 }
1791
1792 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1793 return -TARGET_EFAULT;
1794
1795 addr = alloca(addrlen);
1796
1797 ret = get_errno(getsockname(fd, addr, &addrlen));
1798 if (!is_error(ret)) {
1799 host_to_target_sockaddr(target_addr, addr, addrlen);
1800 if (put_user_u32(addrlen, target_addrlen_addr))
1801 ret = -TARGET_EFAULT;
1802 }
1803 return ret;
1804 }
1805
1806 /* do_socketpair() Must return target values and target errnos. */
1807 static abi_long do_socketpair(int domain, int type, int protocol,
1808 abi_ulong target_tab_addr)
1809 {
1810 int tab[2];
1811 abi_long ret;
1812
1813 ret = get_errno(socketpair(domain, type, protocol, tab));
1814 if (!is_error(ret)) {
1815 if (put_user_s32(tab[0], target_tab_addr)
1816 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1817 ret = -TARGET_EFAULT;
1818 }
1819 return ret;
1820 }
1821
1822 /* do_sendto() Must return target values and target errnos. */
1823 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1824 abi_ulong target_addr, socklen_t addrlen)
1825 {
1826 void *addr;
1827 void *host_msg;
1828 abi_long ret;
1829
1830 if ((int)addrlen < 0) {
1831 return -TARGET_EINVAL;
1832 }
1833
1834 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1835 if (!host_msg)
1836 return -TARGET_EFAULT;
1837 if (target_addr) {
1838 addr = alloca(addrlen);
1839 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1840 if (ret) {
1841 unlock_user(host_msg, msg, 0);
1842 return ret;
1843 }
1844 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1845 } else {
1846 ret = get_errno(send(fd, host_msg, len, flags));
1847 }
1848 unlock_user(host_msg, msg, 0);
1849 return ret;
1850 }
1851
1852 /* do_recvfrom() Must return target values and target errnos. */
1853 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1854 abi_ulong target_addr,
1855 abi_ulong target_addrlen)
1856 {
1857 socklen_t addrlen;
1858 void *addr;
1859 void *host_msg;
1860 abi_long ret;
1861
1862 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1863 if (!host_msg)
1864 return -TARGET_EFAULT;
1865 if (target_addr) {
1866 if (get_user_u32(addrlen, target_addrlen)) {
1867 ret = -TARGET_EFAULT;
1868 goto fail;
1869 }
1870 if ((int)addrlen < 0) {
1871 ret = -TARGET_EINVAL;
1872 goto fail;
1873 }
1874 addr = alloca(addrlen);
1875 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1876 } else {
1877 addr = NULL; /* To keep compiler quiet. */
1878 ret = get_errno(recv(fd, host_msg, len, flags));
1879 }
1880 if (!is_error(ret)) {
1881 if (target_addr) {
1882 host_to_target_sockaddr(target_addr, addr, addrlen);
1883 if (put_user_u32(addrlen, target_addrlen)) {
1884 ret = -TARGET_EFAULT;
1885 goto fail;
1886 }
1887 }
1888 unlock_user(host_msg, msg, len);
1889 } else {
1890 fail:
1891 unlock_user(host_msg, msg, 0);
1892 }
1893 return ret;
1894 }
1895
1896 #ifdef TARGET_NR_socketcall
1897 /* do_socketcall() Must return target values and target errnos. */
1898 static abi_long do_socketcall(int num, abi_ulong vptr)
1899 {
1900 abi_long ret;
1901 const int n = sizeof(abi_ulong);
1902
1903 switch(num) {
1904 case SOCKOP_socket:
1905 {
1906 abi_ulong domain, type, protocol;
1907
1908 if (get_user_ual(domain, vptr)
1909 || get_user_ual(type, vptr + n)
1910 || get_user_ual(protocol, vptr + 2 * n))
1911 return -TARGET_EFAULT;
1912
1913 ret = do_socket(domain, type, protocol);
1914 }
1915 break;
1916 case SOCKOP_bind:
1917 {
1918 abi_ulong sockfd;
1919 abi_ulong target_addr;
1920 socklen_t addrlen;
1921
1922 if (get_user_ual(sockfd, vptr)
1923 || get_user_ual(target_addr, vptr + n)
1924 || get_user_ual(addrlen, vptr + 2 * n))
1925 return -TARGET_EFAULT;
1926
1927 ret = do_bind(sockfd, target_addr, addrlen);
1928 }
1929 break;
1930 case SOCKOP_connect:
1931 {
1932 abi_ulong sockfd;
1933 abi_ulong target_addr;
1934 socklen_t addrlen;
1935
1936 if (get_user_ual(sockfd, vptr)
1937 || get_user_ual(target_addr, vptr + n)
1938 || get_user_ual(addrlen, vptr + 2 * n))
1939 return -TARGET_EFAULT;
1940
1941 ret = do_connect(sockfd, target_addr, addrlen);
1942 }
1943 break;
1944 case SOCKOP_listen:
1945 {
1946 abi_ulong sockfd, backlog;
1947
1948 if (get_user_ual(sockfd, vptr)
1949 || get_user_ual(backlog, vptr + n))
1950 return -TARGET_EFAULT;
1951
1952 ret = get_errno(listen(sockfd, backlog));
1953 }
1954 break;
1955 case SOCKOP_accept:
1956 {
1957 abi_ulong sockfd;
1958 abi_ulong target_addr, target_addrlen;
1959
1960 if (get_user_ual(sockfd, vptr)
1961 || get_user_ual(target_addr, vptr + n)
1962 || get_user_ual(target_addrlen, vptr + 2 * n))
1963 return -TARGET_EFAULT;
1964
1965 ret = do_accept(sockfd, target_addr, target_addrlen);
1966 }
1967 break;
1968 case SOCKOP_getsockname:
1969 {
1970 abi_ulong sockfd;
1971 abi_ulong target_addr, target_addrlen;
1972
1973 if (get_user_ual(sockfd, vptr)
1974 || get_user_ual(target_addr, vptr + n)
1975 || get_user_ual(target_addrlen, vptr + 2 * n))
1976 return -TARGET_EFAULT;
1977
1978 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1979 }
1980 break;
1981 case SOCKOP_getpeername:
1982 {
1983 abi_ulong sockfd;
1984 abi_ulong target_addr, target_addrlen;
1985
1986 if (get_user_ual(sockfd, vptr)
1987 || get_user_ual(target_addr, vptr + n)
1988 || get_user_ual(target_addrlen, vptr + 2 * n))
1989 return -TARGET_EFAULT;
1990
1991 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1992 }
1993 break;
1994 case SOCKOP_socketpair:
1995 {
1996 abi_ulong domain, type, protocol;
1997 abi_ulong tab;
1998
1999 if (get_user_ual(domain, vptr)
2000 || get_user_ual(type, vptr + n)
2001 || get_user_ual(protocol, vptr + 2 * n)
2002 || get_user_ual(tab, vptr + 3 * n))
2003 return -TARGET_EFAULT;
2004
2005 ret = do_socketpair(domain, type, protocol, tab);
2006 }
2007 break;
2008 case SOCKOP_send:
2009 {
2010 abi_ulong sockfd;
2011 abi_ulong msg;
2012 size_t len;
2013 abi_ulong flags;
2014
2015 if (get_user_ual(sockfd, vptr)
2016 || get_user_ual(msg, vptr + n)
2017 || get_user_ual(len, vptr + 2 * n)
2018 || get_user_ual(flags, vptr + 3 * n))
2019 return -TARGET_EFAULT;
2020
2021 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2022 }
2023 break;
2024 case SOCKOP_recv:
2025 {
2026 abi_ulong sockfd;
2027 abi_ulong msg;
2028 size_t len;
2029 abi_ulong flags;
2030
2031 if (get_user_ual(sockfd, vptr)
2032 || get_user_ual(msg, vptr + n)
2033 || get_user_ual(len, vptr + 2 * n)
2034 || get_user_ual(flags, vptr + 3 * n))
2035 return -TARGET_EFAULT;
2036
2037 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2038 }
2039 break;
2040 case SOCKOP_sendto:
2041 {
2042 abi_ulong sockfd;
2043 abi_ulong msg;
2044 size_t len;
2045 abi_ulong flags;
2046 abi_ulong addr;
2047 socklen_t addrlen;
2048
2049 if (get_user_ual(sockfd, vptr)
2050 || get_user_ual(msg, vptr + n)
2051 || get_user_ual(len, vptr + 2 * n)
2052 || get_user_ual(flags, vptr + 3 * n)
2053 || get_user_ual(addr, vptr + 4 * n)
2054 || get_user_ual(addrlen, vptr + 5 * n))
2055 return -TARGET_EFAULT;
2056
2057 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2058 }
2059 break;
2060 case SOCKOP_recvfrom:
2061 {
2062 abi_ulong sockfd;
2063 abi_ulong msg;
2064 size_t len;
2065 abi_ulong flags;
2066 abi_ulong addr;
2067 socklen_t addrlen;
2068
2069 if (get_user_ual(sockfd, vptr)
2070 || get_user_ual(msg, vptr + n)
2071 || get_user_ual(len, vptr + 2 * n)
2072 || get_user_ual(flags, vptr + 3 * n)
2073 || get_user_ual(addr, vptr + 4 * n)
2074 || get_user_ual(addrlen, vptr + 5 * n))
2075 return -TARGET_EFAULT;
2076
2077 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2078 }
2079 break;
2080 case SOCKOP_shutdown:
2081 {
2082 abi_ulong sockfd, how;
2083
2084 if (get_user_ual(sockfd, vptr)
2085 || get_user_ual(how, vptr + n))
2086 return -TARGET_EFAULT;
2087
2088 ret = get_errno(shutdown(sockfd, how));
2089 }
2090 break;
2091 case SOCKOP_sendmsg:
2092 case SOCKOP_recvmsg:
2093 {
2094 abi_ulong fd;
2095 abi_ulong target_msg;
2096 abi_ulong flags;
2097
2098 if (get_user_ual(fd, vptr)
2099 || get_user_ual(target_msg, vptr + n)
2100 || get_user_ual(flags, vptr + 2 * n))
2101 return -TARGET_EFAULT;
2102
2103 ret = do_sendrecvmsg(fd, target_msg, flags,
2104 (num == SOCKOP_sendmsg));
2105 }
2106 break;
2107 case SOCKOP_setsockopt:
2108 {
2109 abi_ulong sockfd;
2110 abi_ulong level;
2111 abi_ulong optname;
2112 abi_ulong optval;
2113 socklen_t optlen;
2114
2115 if (get_user_ual(sockfd, vptr)
2116 || get_user_ual(level, vptr + n)
2117 || get_user_ual(optname, vptr + 2 * n)
2118 || get_user_ual(optval, vptr + 3 * n)
2119 || get_user_ual(optlen, vptr + 4 * n))
2120 return -TARGET_EFAULT;
2121
2122 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2123 }
2124 break;
2125 case SOCKOP_getsockopt:
2126 {
2127 abi_ulong sockfd;
2128 abi_ulong level;
2129 abi_ulong optname;
2130 abi_ulong optval;
2131 socklen_t optlen;
2132
2133 if (get_user_ual(sockfd, vptr)
2134 || get_user_ual(level, vptr + n)
2135 || get_user_ual(optname, vptr + 2 * n)
2136 || get_user_ual(optval, vptr + 3 * n)
2137 || get_user_ual(optlen, vptr + 4 * n))
2138 return -TARGET_EFAULT;
2139
2140 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2141 }
2142 break;
2143 default:
2144 gemu_log("Unsupported socketcall: %d\n", num);
2145 ret = -TARGET_ENOSYS;
2146 break;
2147 }
2148 return ret;
2149 }
2150 #endif
2151
2152 #define N_SHM_REGIONS 32
2153
2154 static struct shm_region {
2155 abi_ulong start;
2156 abi_ulong size;
2157 } shm_regions[N_SHM_REGIONS];
2158
2159 struct target_ipc_perm
2160 {
2161 abi_long __key;
2162 abi_ulong uid;
2163 abi_ulong gid;
2164 abi_ulong cuid;
2165 abi_ulong cgid;
2166 unsigned short int mode;
2167 unsigned short int __pad1;
2168 unsigned short int __seq;
2169 unsigned short int __pad2;
2170 abi_ulong __unused1;
2171 abi_ulong __unused2;
2172 };
2173
2174 struct target_semid_ds
2175 {
2176 struct target_ipc_perm sem_perm;
2177 abi_ulong sem_otime;
2178 abi_ulong __unused1;
2179 abi_ulong sem_ctime;
2180 abi_ulong __unused2;
2181 abi_ulong sem_nsems;
2182 abi_ulong __unused3;
2183 abi_ulong __unused4;
2184 };
2185
2186 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2187 abi_ulong target_addr)
2188 {
2189 struct target_ipc_perm *target_ip;
2190 struct target_semid_ds *target_sd;
2191
2192 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2193 return -TARGET_EFAULT;
2194 target_ip = &(target_sd->sem_perm);
2195 host_ip->__key = tswapl(target_ip->__key);
2196 host_ip->uid = tswapl(target_ip->uid);
2197 host_ip->gid = tswapl(target_ip->gid);
2198 host_ip->cuid = tswapl(target_ip->cuid);
2199 host_ip->cgid = tswapl(target_ip->cgid);
2200 host_ip->mode = tswapl(target_ip->mode);
2201 unlock_user_struct(target_sd, target_addr, 0);
2202 return 0;
2203 }
2204
2205 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2206 struct ipc_perm *host_ip)
2207 {
2208 struct target_ipc_perm *target_ip;
2209 struct target_semid_ds *target_sd;
2210
2211 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2212 return -TARGET_EFAULT;
2213 target_ip = &(target_sd->sem_perm);
2214 target_ip->__key = tswapl(host_ip->__key);
2215 target_ip->uid = tswapl(host_ip->uid);
2216 target_ip->gid = tswapl(host_ip->gid);
2217 target_ip->cuid = tswapl(host_ip->cuid);
2218 target_ip->cgid = tswapl(host_ip->cgid);
2219 target_ip->mode = tswapl(host_ip->mode);
2220 unlock_user_struct(target_sd, target_addr, 1);
2221 return 0;
2222 }
2223
2224 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2225 abi_ulong target_addr)
2226 {
2227 struct target_semid_ds *target_sd;
2228
2229 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2230 return -TARGET_EFAULT;
2231 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2232 return -TARGET_EFAULT;
2233 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
2234 host_sd->sem_otime = tswapl(target_sd->sem_otime);
2235 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
2236 unlock_user_struct(target_sd, target_addr, 0);
2237 return 0;
2238 }
2239
2240 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2241 struct semid_ds *host_sd)
2242 {
2243 struct target_semid_ds *target_sd;
2244
2245 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2246 return -TARGET_EFAULT;
2247 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2248 return -TARGET_EFAULT;;
2249 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
2250 target_sd->sem_otime = tswapl(host_sd->sem_otime);
2251 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
2252 unlock_user_struct(target_sd, target_addr, 1);
2253 return 0;
2254 }
2255
2256 struct target_seminfo {
2257 int semmap;
2258 int semmni;
2259 int semmns;
2260 int semmnu;
2261 int semmsl;
2262 int semopm;
2263 int semume;
2264 int semusz;
2265 int semvmx;
2266 int semaem;
2267 };
2268
2269 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2270 struct seminfo *host_seminfo)
2271 {
2272 struct target_seminfo *target_seminfo;
2273 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2274 return -TARGET_EFAULT;
2275 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2276 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2277 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2278 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2279 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2280 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2281 __put_user(host_seminfo->semume, &target_seminfo->semume);
2282 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2283 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2284 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2285 unlock_user_struct(target_seminfo, target_addr, 1);
2286 return 0;
2287 }
2288
2289 union semun {
2290 int val;
2291 struct semid_ds *buf;
2292 unsigned short *array;
2293 struct seminfo *__buf;
2294 };
2295
2296 union target_semun {
2297 int val;
2298 abi_ulong buf;
2299 abi_ulong array;
2300 abi_ulong __buf;
2301 };
2302
2303 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2304 abi_ulong target_addr)
2305 {
2306 int nsems;
2307 unsigned short *array;
2308 union semun semun;
2309 struct semid_ds semid_ds;
2310 int i, ret;
2311
2312 semun.buf = &semid_ds;
2313
2314 ret = semctl(semid, 0, IPC_STAT, semun);
2315 if (ret == -1)
2316 return get_errno(ret);
2317
2318 nsems = semid_ds.sem_nsems;
2319
2320 *host_array = malloc(nsems*sizeof(unsigned short));
2321 array = lock_user(VERIFY_READ, target_addr,
2322 nsems*sizeof(unsigned short), 1);
2323 if (!array)
2324 return -TARGET_EFAULT;
2325
2326 for(i=0; i<nsems; i++) {
2327 __get_user((*host_array)[i], &array[i]);
2328 }
2329 unlock_user(array, target_addr, 0);
2330
2331 return 0;
2332 }
2333
2334 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2335 unsigned short **host_array)
2336 {
2337 int nsems;
2338 unsigned short *array;
2339 union semun semun;
2340 struct semid_ds semid_ds;
2341 int i, ret;
2342
2343 semun.buf = &semid_ds;
2344
2345 ret = semctl(semid, 0, IPC_STAT, semun);
2346 if (ret == -1)
2347 return get_errno(ret);
2348
2349 nsems = semid_ds.sem_nsems;
2350
2351 array = lock_user(VERIFY_WRITE, target_addr,
2352 nsems*sizeof(unsigned short), 0);
2353 if (!array)
2354 return -TARGET_EFAULT;
2355
2356 for(i=0; i<nsems; i++) {
2357 __put_user((*host_array)[i], &array[i]);
2358 }
2359 free(*host_array);
2360 unlock_user(array, target_addr, 1);
2361
2362 return 0;
2363 }
2364
2365 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2366 union target_semun target_su)
2367 {
2368 union semun arg;
2369 struct semid_ds dsarg;
2370 unsigned short *array = NULL;
2371 struct seminfo seminfo;
2372 abi_long ret = -TARGET_EINVAL;
2373 abi_long err;
2374 cmd &= 0xff;
2375
2376 switch( cmd ) {
2377 case GETVAL:
2378 case SETVAL:
2379 arg.val = tswapl(target_su.val);
2380 ret = get_errno(semctl(semid, semnum, cmd, arg));
2381 target_su.val = tswapl(arg.val);
2382 break;
2383 case GETALL:
2384 case SETALL:
2385 err = target_to_host_semarray(semid, &array, target_su.array);
2386 if (err)
2387 return err;
2388 arg.array = array;
2389 ret = get_errno(semctl(semid, semnum, cmd, arg));
2390 err = host_to_target_semarray(semid, target_su.array, &array);
2391 if (err)
2392 return err;
2393 break;
2394 case IPC_STAT:
2395 case IPC_SET:
2396 case SEM_STAT:
2397 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2398 if (err)
2399 return err;
2400 arg.buf = &dsarg;
2401 ret = get_errno(semctl(semid, semnum, cmd, arg));
2402 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2403 if (err)
2404 return err;
2405 break;
2406 case IPC_INFO:
2407 case SEM_INFO:
2408 arg.__buf = &seminfo;
2409 ret = get_errno(semctl(semid, semnum, cmd, arg));
2410 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2411 if (err)
2412 return err;
2413 break;
2414 case IPC_RMID:
2415 case GETPID:
2416 case GETNCNT:
2417 case GETZCNT:
2418 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2419 break;
2420 }
2421
2422 return ret;
2423 }
2424
2425 struct target_sembuf {
2426 unsigned short sem_num;
2427 short sem_op;
2428 short sem_flg;
2429 };
2430
2431 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2432 abi_ulong target_addr,
2433 unsigned nsops)
2434 {
2435 struct target_sembuf *target_sembuf;
2436 int i;
2437
2438 target_sembuf = lock_user(VERIFY_READ, target_addr,
2439 nsops*sizeof(struct target_sembuf), 1);
2440 if (!target_sembuf)
2441 return -TARGET_EFAULT;
2442
2443 for(i=0; i<nsops; i++) {
2444 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2445 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2446 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2447 }
2448
2449 unlock_user(target_sembuf, target_addr, 0);
2450
2451 return 0;
2452 }
2453
2454 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2455 {
2456 struct sembuf sops[nsops];
2457
2458 if (target_to_host_sembuf(sops, ptr, nsops))
2459 return -TARGET_EFAULT;
2460
2461 return semop(semid, sops, nsops);
2462 }
2463
2464 struct target_msqid_ds
2465 {
2466 struct target_ipc_perm msg_perm;
2467 abi_ulong msg_stime;
2468 #if TARGET_ABI_BITS == 32
2469 abi_ulong __unused1;
2470 #endif
2471 abi_ulong msg_rtime;
2472 #if TARGET_ABI_BITS == 32
2473 abi_ulong __unused2;
2474 #endif
2475 abi_ulong msg_ctime;
2476 #if TARGET_ABI_BITS == 32
2477 abi_ulong __unused3;
2478 #endif
2479 abi_ulong __msg_cbytes;
2480 abi_ulong msg_qnum;
2481 abi_ulong msg_qbytes;
2482 abi_ulong msg_lspid;
2483 abi_ulong msg_lrpid;
2484 abi_ulong __unused4;
2485 abi_ulong __unused5;
2486 };
2487
2488 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2489 abi_ulong target_addr)
2490 {
2491 struct target_msqid_ds *target_md;
2492
2493 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2494 return -TARGET_EFAULT;
2495 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2496 return -TARGET_EFAULT;
2497 host_md->msg_stime = tswapl(target_md->msg_stime);
2498 host_md->msg_rtime = tswapl(target_md->msg_rtime);
2499 host_md->msg_ctime = tswapl(target_md->msg_ctime);
2500 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
2501 host_md->msg_qnum = tswapl(target_md->msg_qnum);
2502 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
2503 host_md->msg_lspid = tswapl(target_md->msg_lspid);
2504 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
2505 unlock_user_struct(target_md, target_addr, 0);
2506 return 0;
2507 }
2508
2509 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2510 struct msqid_ds *host_md)
2511 {
2512 struct target_msqid_ds *target_md;
2513
2514 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2515 return -TARGET_EFAULT;
2516 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2517 return -TARGET_EFAULT;
2518 target_md->msg_stime = tswapl(host_md->msg_stime);
2519 target_md->msg_rtime = tswapl(host_md->msg_rtime);
2520 target_md->msg_ctime = tswapl(host_md->msg_ctime);
2521 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
2522 target_md->msg_qnum = tswapl(host_md->msg_qnum);
2523 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
2524 target_md->msg_lspid = tswapl(host_md->msg_lspid);
2525 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
2526 unlock_user_struct(target_md, target_addr, 1);
2527 return 0;
2528 }
2529
2530 struct target_msginfo {
2531 int msgpool;
2532 int msgmap;
2533 int msgmax;
2534 int msgmnb;
2535 int msgmni;
2536 int msgssz;
2537 int msgtql;
2538 unsigned short int msgseg;
2539 };
2540
2541 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2542 struct msginfo *host_msginfo)
2543 {
2544 struct target_msginfo *target_msginfo;
2545 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2546 return -TARGET_EFAULT;
2547 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2548 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2549 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2550 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2551 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2552 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2553 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2554 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2555 unlock_user_struct(target_msginfo, target_addr, 1);
2556 return 0;
2557 }
2558
2559 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2560 {
2561 struct msqid_ds dsarg;
2562 struct msginfo msginfo;
2563 abi_long ret = -TARGET_EINVAL;
2564
2565 cmd &= 0xff;
2566
2567 switch (cmd) {
2568 case IPC_STAT:
2569 case IPC_SET:
2570 case MSG_STAT:
2571 if (target_to_host_msqid_ds(&dsarg,ptr))
2572 return -TARGET_EFAULT;
2573 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2574 if (host_to_target_msqid_ds(ptr,&dsarg))
2575 return -TARGET_EFAULT;
2576 break;
2577 case IPC_RMID:
2578 ret = get_errno(msgctl(msgid, cmd, NULL));
2579 break;
2580 case IPC_INFO:
2581 case MSG_INFO:
2582 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2583 if (host_to_target_msginfo(ptr, &msginfo))
2584 return -TARGET_EFAULT;
2585 break;
2586 }
2587
2588 return ret;
2589 }
2590
2591 struct target_msgbuf {
2592 abi_long mtype;
2593 char mtext[1];
2594 };
2595
2596 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2597 unsigned int msgsz, int msgflg)
2598 {
2599 struct target_msgbuf *target_mb;
2600 struct msgbuf *host_mb;
2601 abi_long ret = 0;
2602
2603 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2604 return -TARGET_EFAULT;
2605 host_mb = malloc(msgsz+sizeof(long));
2606 host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
2607 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2608 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2609 free(host_mb);
2610 unlock_user_struct(target_mb, msgp, 0);
2611
2612 return ret;
2613 }
2614
2615 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2616 unsigned int msgsz, abi_long msgtyp,
2617 int msgflg)
2618 {
2619 struct target_msgbuf *target_mb;
2620 char *target_mtext;
2621 struct msgbuf *host_mb;
2622 abi_long ret = 0;
2623
2624 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2625 return -TARGET_EFAULT;
2626
2627 host_mb = malloc(msgsz+sizeof(long));
2628 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
2629
2630 if (ret > 0) {
2631 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2632 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2633 if (!target_mtext) {
2634 ret = -TARGET_EFAULT;
2635 goto end;
2636 }
2637 memcpy(target_mb->mtext, host_mb->mtext, ret);
2638 unlock_user(target_mtext, target_mtext_addr, ret);
2639 }
2640
2641 target_mb->mtype = tswapl(host_mb->mtype);
2642 free(host_mb);
2643
2644 end:
2645 if (target_mb)
2646 unlock_user_struct(target_mb, msgp, 1);
2647 return ret;
2648 }
2649
2650 struct target_shmid_ds
2651 {
2652 struct target_ipc_perm shm_perm;
2653 abi_ulong shm_segsz;
2654 abi_ulong shm_atime;
2655 #if TARGET_ABI_BITS == 32
2656 abi_ulong __unused1;
2657 #endif
2658 abi_ulong shm_dtime;
2659 #if TARGET_ABI_BITS == 32
2660 abi_ulong __unused2;
2661 #endif
2662 abi_ulong shm_ctime;
2663 #if TARGET_ABI_BITS == 32
2664 abi_ulong __unused3;
2665 #endif
2666 int shm_cpid;
2667 int shm_lpid;
2668 abi_ulong shm_nattch;
2669 unsigned long int __unused4;
2670 unsigned long int __unused5;
2671 };
2672
2673 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2674 abi_ulong target_addr)
2675 {
2676 struct target_shmid_ds *target_sd;
2677
2678 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2679 return -TARGET_EFAULT;
2680 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2681 return -TARGET_EFAULT;
2682 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2683 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2684 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2685 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2686 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2687 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2688 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2689 unlock_user_struct(target_sd, target_addr, 0);
2690 return 0;
2691 }
2692
2693 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2694 struct shmid_ds *host_sd)
2695 {
2696 struct target_shmid_ds *target_sd;
2697
2698 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2699 return -TARGET_EFAULT;
2700 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2701 return -TARGET_EFAULT;
2702 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2703 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2704 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2705 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2706 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2707 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2708 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2709 unlock_user_struct(target_sd, target_addr, 1);
2710 return 0;
2711 }
2712
2713 struct target_shminfo {
2714 abi_ulong shmmax;
2715 abi_ulong shmmin;
2716 abi_ulong shmmni;
2717 abi_ulong shmseg;
2718 abi_ulong shmall;
2719 };
2720
2721 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2722 struct shminfo *host_shminfo)
2723 {
2724 struct target_shminfo *target_shminfo;
2725 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2726 return -TARGET_EFAULT;
2727 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2728 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2729 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2730 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2731 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2732 unlock_user_struct(target_shminfo, target_addr, 1);
2733 return 0;
2734 }
2735
2736 struct target_shm_info {
2737 int used_ids;
2738 abi_ulong shm_tot;
2739 abi_ulong shm_rss;
2740 abi_ulong shm_swp;
2741 abi_ulong swap_attempts;
2742 abi_ulong swap_successes;
2743 };
2744
2745 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2746 struct shm_info *host_shm_info)
2747 {
2748 struct target_shm_info *target_shm_info;
2749 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2750 return -TARGET_EFAULT;
2751 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2752 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2753 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2754 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2755 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2756 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2757 unlock_user_struct(target_shm_info, target_addr, 1);
2758 return 0;
2759 }
2760
2761 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2762 {
2763 struct shmid_ds dsarg;
2764 struct shminfo shminfo;
2765 struct shm_info shm_info;
2766 abi_long ret = -TARGET_EINVAL;
2767
2768 cmd &= 0xff;
2769
2770 switch(cmd) {
2771 case IPC_STAT:
2772 case IPC_SET:
2773 case SHM_STAT:
2774 if (target_to_host_shmid_ds(&dsarg, buf))
2775 return -TARGET_EFAULT;
2776 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2777 if (host_to_target_shmid_ds(buf, &dsarg))
2778 return -TARGET_EFAULT;
2779 break;
2780 case IPC_INFO:
2781 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2782 if (host_to_target_shminfo(buf, &shminfo))
2783 return -TARGET_EFAULT;
2784 break;
2785 case SHM_INFO:
2786 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2787 if (host_to_target_shm_info(buf, &shm_info))
2788 return -TARGET_EFAULT;
2789 break;
2790 case IPC_RMID:
2791 case SHM_LOCK:
2792 case SHM_UNLOCK:
2793 ret = get_errno(shmctl(shmid, cmd, NULL));
2794 break;
2795 }
2796
2797 return ret;
2798 }
2799
2800 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2801 {
2802 abi_long raddr;
2803 void *host_raddr;
2804 struct shmid_ds shm_info;
2805 int i,ret;
2806
2807 /* find out the length of the shared memory segment */
2808 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2809 if (is_error(ret)) {
2810 /* can't get length, bail out */
2811 return ret;
2812 }
2813
2814 mmap_lock();
2815
2816 if (shmaddr)
2817 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2818 else {
2819 abi_ulong mmap_start;
2820
2821 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2822
2823 if (mmap_start == -1) {
2824 errno = ENOMEM;
2825 host_raddr = (void *)-1;
2826 } else
2827 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2828 }
2829
2830 if (host_raddr == (void *)-1) {
2831 mmap_unlock();
2832 return get_errno((long)host_raddr);
2833 }
2834 raddr=h2g((unsigned long)host_raddr);
2835
2836 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2837 PAGE_VALID | PAGE_READ |
2838 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2839
2840 for (i = 0; i < N_SHM_REGIONS; i++) {
2841 if (shm_regions[i].start == 0) {
2842 shm_regions[i].start = raddr;
2843 shm_regions[i].size = shm_info.shm_segsz;
2844 break;
2845 }
2846 }
2847
2848 mmap_unlock();
2849 return raddr;
2850
2851 }
2852
2853 static inline abi_long do_shmdt(abi_ulong shmaddr)
2854 {
2855 int i;
2856
2857 for (i = 0; i < N_SHM_REGIONS; ++i) {
2858 if (shm_regions[i].start == shmaddr) {
2859 shm_regions[i].start = 0;
2860 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
2861 break;
2862 }
2863 }
2864
2865 return get_errno(shmdt(g2h(shmaddr)));
2866 }
2867
2868 #ifdef TARGET_NR_ipc
2869 /* ??? This only works with linear mappings. */
2870 /* do_ipc() must return target values and target errnos. */
2871 static abi_long do_ipc(unsigned int call, int first,
2872 int second, int third,
2873 abi_long ptr, abi_long fifth)
2874 {
2875 int version;
2876 abi_long ret = 0;
2877
2878 version = call >> 16;
2879 call &= 0xffff;
2880
2881 switch (call) {
2882 case IPCOP_semop:
2883 ret = do_semop(first, ptr, second);
2884 break;
2885
2886 case IPCOP_semget:
2887 ret = get_errno(semget(first, second, third));
2888 break;
2889
2890 case IPCOP_semctl:
2891 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
2892 break;
2893
2894 case IPCOP_msgget:
2895 ret = get_errno(msgget(first, second));
2896 break;
2897
2898 case IPCOP_msgsnd:
2899 ret = do_msgsnd(first, ptr, second, third);
2900 break;
2901
2902 case IPCOP_msgctl:
2903 ret = do_msgctl(first, second, ptr);
2904 break;
2905
2906 case IPCOP_msgrcv:
2907 switch (version) {
2908 case 0:
2909 {
2910 struct target_ipc_kludge {
2911 abi_long msgp;
2912 abi_long msgtyp;
2913 } *tmp;
2914
2915 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
2916 ret = -TARGET_EFAULT;
2917 break;
2918 }
2919
2920 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
2921
2922 unlock_user_struct(tmp, ptr, 0);
2923 break;
2924 }
2925 default:
2926 ret = do_msgrcv(first, ptr, second, fifth, third);
2927 }
2928 break;
2929
2930 case IPCOP_shmat:
2931 switch (version) {
2932 default:
2933 {
2934 abi_ulong raddr;
2935 raddr = do_shmat(first, ptr, second);
2936 if (is_error(raddr))
2937 return get_errno(raddr);
2938 if (put_user_ual(raddr, third))
2939 return -TARGET_EFAULT;
2940 break;
2941 }
2942 case 1:
2943 ret = -TARGET_EINVAL;
2944 break;
2945 }
2946 break;
2947 case IPCOP_shmdt:
2948 ret = do_shmdt(ptr);
2949 break;
2950
2951 case IPCOP_shmget:
2952 /* IPC_* flag values are the same on all linux platforms */
2953 ret = get_errno(shmget(first, second, third));
2954 break;
2955
2956 /* IPC_* and SHM_* command values are the same on all linux platforms */
2957 case IPCOP_shmctl:
2958 ret = do_shmctl(first, second, third);
2959 break;
2960 default:
2961 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2962 ret = -TARGET_ENOSYS;
2963 break;
2964 }
2965 return ret;
2966 }
2967 #endif
2968
2969 /* kernel structure types definitions */
2970 #define IFNAMSIZ 16
2971
2972 #define STRUCT(name, ...) STRUCT_ ## name,
2973 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2974 enum {
2975 #include "syscall_types.h"
2976 };
2977 #undef STRUCT
2978 #undef STRUCT_SPECIAL
2979
2980 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
2981 #define STRUCT_SPECIAL(name)
2982 #include "syscall_types.h"
2983 #undef STRUCT
2984 #undef STRUCT_SPECIAL
2985
2986 typedef struct IOCTLEntry IOCTLEntry;
2987
2988 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
2989 int fd, abi_long cmd, abi_long arg);
2990
2991 struct IOCTLEntry {
2992 unsigned int target_cmd;
2993 unsigned int host_cmd;
2994 const char *name;
2995 int access;
2996 do_ioctl_fn *do_ioctl;
2997 const argtype arg_type[5];
2998 };
2999
3000 #define IOC_R 0x0001
3001 #define IOC_W 0x0002
3002 #define IOC_RW (IOC_R | IOC_W)
3003
3004 #define MAX_STRUCT_SIZE 4096
3005
3006 #ifdef CONFIG_FIEMAP
3007 /* So fiemap access checks don't overflow on 32 bit systems.
3008 * This is very slightly smaller than the limit imposed by
3009 * the underlying kernel.
3010 */
3011 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
3012 / sizeof(struct fiemap_extent))
3013
3014 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
3015 int fd, abi_long cmd, abi_long arg)
3016 {
3017 /* The parameter for this ioctl is a struct fiemap followed
3018 * by an array of struct fiemap_extent whose size is set
3019 * in fiemap->fm_extent_count. The array is filled in by the
3020 * ioctl.
3021 */
3022 int target_size_in, target_size_out;
3023 struct fiemap *fm;
3024 const argtype *arg_type = ie->arg_type;
3025 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3026 void *argptr, *p;
3027 abi_long ret;
3028 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3029 uint32_t outbufsz;
3030 int free_fm = 0;
3031
3032 assert(arg_type[0] == TYPE_PTR);
3033 assert(ie->access == IOC_RW);
3034 arg_type++;
3035 target_size_in = thunk_type_size(arg_type, 0);
3036 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3037 if (!argptr) {
3038 return -TARGET_EFAULT;
3039 }
3040 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3041 unlock_user(argptr, arg, 0);
3042 fm = (struct fiemap *)buf_temp;
3043 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3044 return -TARGET_EINVAL;
3045 }
3046
3047 outbufsz = sizeof (*fm) +
3048 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3049
3050 if (outbufsz > MAX_STRUCT_SIZE) {
3051 /* We can't fit all the extents into the fixed size buffer.
3052 * Allocate one that is large enough and use it instead.
3053 */
3054 fm = malloc(outbufsz);
3055 if (!fm) {
3056 return -TARGET_ENOMEM;
3057 }
3058 memcpy(fm, buf_temp, sizeof(struct fiemap));
3059 free_fm = 1;
3060 }
3061 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3062 if (!is_error(ret)) {
3063 target_size_out = target_size_in;
3064 /* An extent_count of 0 means we were only counting the extents
3065 * so there are no structs to copy
3066 */
3067 if (fm->fm_extent_count != 0) {
3068 target_size_out += fm->fm_mapped_extents * extent_size;
3069 }
3070 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3071 if (!argptr) {
3072 ret = -TARGET_EFAULT;
3073 } else {
3074 /* Convert the struct fiemap */
3075 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3076 if (fm->fm_extent_count != 0) {
3077 p = argptr + target_size_in;
3078 /* ...and then all the struct fiemap_extents */
3079 for (i = 0; i < fm->fm_mapped_extents; i++) {
3080 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3081 THUNK_TARGET);
3082 p += extent_size;
3083 }
3084 }
3085 unlock_user(argptr, arg, target_size_out);
3086 }
3087 }
3088 if (free_fm) {
3089 free(fm);
3090 }
3091 return ret;
3092 }
3093 #endif
3094
3095 static IOCTLEntry ioctl_entries[] = {
3096 #define IOCTL(cmd, access, ...) \
3097 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3098 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3099 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3100 #include "ioctls.h"
3101 { 0, 0, },
3102 };
3103
3104 /* ??? Implement proper locking for ioctls. */
3105 /* do_ioctl() Must return target values and target errnos. */
3106 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3107 {
3108 const IOCTLEntry *ie;
3109 const argtype *arg_type;
3110 abi_long ret;
3111 uint8_t buf_temp[MAX_STRUCT_SIZE];
3112 int target_size;
3113 void *argptr;
3114
3115 ie = ioctl_entries;
3116 for(;;) {
3117 if (ie->target_cmd == 0) {
3118 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3119 return -TARGET_ENOSYS;
3120 }
3121 if (ie->target_cmd == cmd)
3122 break;
3123 ie++;
3124 }
3125 arg_type = ie->arg_type;
3126 #if defined(DEBUG)
3127 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3128 #endif
3129 if (ie->do_ioctl) {
3130 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3131 }
3132
3133 switch(arg_type[0]) {
3134 case TYPE_NULL:
3135 /* no argument */
3136 ret = get_errno(ioctl(fd, ie->host_cmd));
3137 break;
3138 case TYPE_PTRVOID:
3139 case TYPE_INT:
3140 /* int argment */
3141 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3142 break;
3143 case TYPE_PTR:
3144 arg_type++;
3145 target_size = thunk_type_size(arg_type, 0);
3146 switch(ie->access) {
3147 case IOC_R:
3148 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3149 if (!is_error(ret)) {
3150 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3151 if (!argptr)
3152 return -TARGET_EFAULT;
3153 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3154 unlock_user(argptr, arg, target_size);
3155 }
3156 break;
3157 case IOC_W:
3158 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3159 if (!argptr)
3160 return -TARGET_EFAULT;
3161 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3162 unlock_user(argptr, arg, 0);
3163 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3164 break;
3165 default:
3166 case IOC_RW:
3167 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3168 if (!argptr)
3169 return -TARGET_EFAULT;
3170 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3171 unlock_user(argptr, arg, 0);
3172 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3173 if (!is_error(ret)) {
3174 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3175 if (!argptr)
3176 return -TARGET_EFAULT;
3177 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3178 unlock_user(argptr, arg, target_size);
3179 }
3180 break;
3181 }
3182 break;
3183 default:
3184 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3185 (long)cmd, arg_type[0]);
3186 ret = -TARGET_ENOSYS;
3187 break;
3188 }
3189 return ret;
3190 }
3191
3192 static const bitmask_transtbl iflag_tbl[] = {
3193 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3194 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3195 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3196 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3197 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3198 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3199 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3200 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3201 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3202 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3203 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3204 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3205 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3206 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3207 { 0, 0, 0, 0 }
3208 };
3209
3210 static const bitmask_transtbl oflag_tbl[] = {
3211 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3212 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3213 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3214 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3215 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3216 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3217 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3218 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3219 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3220 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3221 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3222 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3223 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3224 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3225 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3226 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3227 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3228 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3229 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3230 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3231 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3232 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3233 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3234 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3235 { 0, 0, 0, 0 }
3236 };
3237
3238 static const bitmask_transtbl cflag_tbl[] = {
3239 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3240 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3241 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3242 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3243 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3244 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3245 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3246 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3247 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3248 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3249 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3250 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3251 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3252 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3253 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3254 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3255 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3256 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3257 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3258 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3259 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3260 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3261 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3262 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3263 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3264 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3265 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3266 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3267 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3268 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3269 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3270 { 0, 0, 0, 0 }
3271 };
3272
3273 static const bitmask_transtbl lflag_tbl[] = {
3274 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3275 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3276 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3277 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3278 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3279 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3280 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3281 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3282 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3283 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3284 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3285 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3286 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3287 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3288 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3289 { 0, 0, 0, 0 }
3290 };
3291
3292 static void target_to_host_termios (void *dst, const void *src)
3293 {
3294 struct host_termios *host = dst;
3295 const struct target_termios *target = src;
3296
3297 host->c_iflag =
3298 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3299 host->c_oflag =
3300 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3301 host->c_cflag =
3302 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3303 host->c_lflag =
3304 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3305 host->c_line = target->c_line;
3306
3307 memset(host->c_cc, 0, sizeof(host->c_cc));
3308 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3309 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3310 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3311 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3312 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3313 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3314 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3315 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3316 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3317 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3318 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3319 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3320 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3321 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3322 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3323 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3324 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3325 }
3326
3327 static void host_to_target_termios (void *dst, const void *src)
3328 {
3329 struct target_termios *target = dst;
3330 const struct host_termios *host = src;
3331
3332 target->c_iflag =
3333 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3334 target->c_oflag =
3335 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3336 target->c_cflag =
3337 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3338 target->c_lflag =
3339 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3340 target->c_line = host->c_line;
3341
3342 memset(target->c_cc, 0, sizeof(target->c_cc));
3343 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3344 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3345 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3346 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3347 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3348 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3349 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3350 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3351 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3352 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3353 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3354 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3355 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3356 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3357 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3358 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3359 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3360 }
3361
3362 static const StructEntry struct_termios_def = {
3363 .convert = { host_to_target_termios, target_to_host_termios },
3364 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3365 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3366 };
3367
3368 static bitmask_transtbl mmap_flags_tbl[] = {
3369 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3370 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3371 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3372 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3373 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3374 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3375 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3376 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3377 { 0, 0, 0, 0 }
3378 };
3379
3380 #if defined(TARGET_I386)
3381
3382 /* NOTE: there is really one LDT for all the threads */
3383 static uint8_t *ldt_table;
3384
3385 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3386 {
3387 int size;
3388 void *p;
3389
3390 if (!ldt_table)
3391 return 0;
3392 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3393 if (size > bytecount)
3394 size = bytecount;
3395 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3396 if (!p)
3397 return -TARGET_EFAULT;
3398 /* ??? Should this by byteswapped? */
3399 memcpy(p, ldt_table, size);
3400 unlock_user(p, ptr, size);
3401 return size;
3402 }
3403
3404 /* XXX: add locking support */
3405 static abi_long write_ldt(CPUX86State *env,
3406 abi_ulong ptr, unsigned long bytecount, int oldmode)
3407 {
3408 struct target_modify_ldt_ldt_s ldt_info;
3409 struct target_modify_ldt_ldt_s *target_ldt_info;
3410 int seg_32bit, contents, read_exec_only, limit_in_pages;
3411 int seg_not_present, useable, lm;
3412 uint32_t *lp, entry_1, entry_2;
3413
3414 if (bytecount != sizeof(ldt_info))
3415 return -TARGET_EINVAL;
3416 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3417 return -TARGET_EFAULT;
3418 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3419 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3420 ldt_info.limit = tswap32(target_ldt_info->limit);
3421 ldt_info.flags = tswap32(target_ldt_info->flags);
3422 unlock_user_struct(target_ldt_info, ptr, 0);
3423
3424 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3425 return -TARGET_EINVAL;
3426 seg_32bit = ldt_info.flags & 1;
3427 contents = (ldt_info.flags >> 1) & 3;
3428 read_exec_only = (ldt_info.flags >> 3) & 1;
3429 limit_in_pages = (ldt_info.flags >> 4) & 1;
3430 seg_not_present = (ldt_info.flags >> 5) & 1;
3431 useable = (ldt_info.flags >> 6) & 1;
3432 #ifdef TARGET_ABI32
3433 lm = 0;
3434 #else
3435 lm = (ldt_info.flags >> 7) & 1;
3436 #endif
3437 if (contents == 3) {
3438 if (oldmode)
3439 return -TARGET_EINVAL;
3440 if (seg_not_present == 0)
3441 return -TARGET_EINVAL;
3442 }
3443 /* allocate the LDT */
3444 if (!ldt_table) {
3445 env->ldt.base = target_mmap(0,
3446 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3447 PROT_READ|PROT_WRITE,
3448 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3449 if (env->ldt.base == -1)
3450 return -TARGET_ENOMEM;
3451 memset(g2h(env->ldt.base), 0,
3452 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3453 env->ldt.limit = 0xffff;
3454 ldt_table = g2h(env->ldt.base);
3455 }
3456
3457 /* NOTE: same code as Linux kernel */
3458 /* Allow LDTs to be cleared by the user. */
3459 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3460 if (oldmode ||
3461 (contents == 0 &&
3462 read_exec_only == 1 &&
3463 seg_32bit == 0 &&
3464 limit_in_pages == 0 &&
3465 seg_not_present == 1 &&
3466 useable == 0 )) {
3467 entry_1 = 0;
3468 entry_2 = 0;
3469 goto install;
3470 }
3471 }
3472
3473 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3474 (ldt_info.limit & 0x0ffff);
3475 entry_2 = (ldt_info.base_addr & 0xff000000) |
3476 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3477 (ldt_info.limit & 0xf0000) |
3478 ((read_exec_only ^ 1) << 9) |
3479 (contents << 10) |
3480 ((seg_not_present ^ 1) << 15) |
3481 (seg_32bit << 22) |
3482 (limit_in_pages << 23) |
3483 (lm << 21) |
3484 0x7000;
3485 if (!oldmode)
3486 entry_2 |= (useable << 20);
3487
3488 /* Install the new entry ... */
3489 install:
3490 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3491 lp[0] = tswap32(entry_1);
3492 lp[1] = tswap32(entry_2);
3493 return 0;
3494 }
3495
3496 /* specific and weird i386 syscalls */
3497 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3498 unsigned long bytecount)
3499 {
3500 abi_long ret;
3501
3502 switch (func) {
3503 case 0:
3504 ret = read_ldt(ptr, bytecount);
3505 break;
3506 case 1:
3507 ret = write_ldt(env, ptr, bytecount, 1);
3508 break;
3509 case 0x11:
3510 ret = write_ldt(env, ptr, bytecount, 0);
3511 break;
3512 default:
3513 ret = -TARGET_ENOSYS;
3514 break;
3515 }
3516 return ret;
3517 }
3518
3519 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3520 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3521 {
3522 uint64_t *gdt_table = g2h(env->gdt.base);
3523 struct target_modify_ldt_ldt_s ldt_info;
3524 struct target_modify_ldt_ldt_s *target_ldt_info;
3525 int seg_32bit, contents, read_exec_only, limit_in_pages;
3526 int seg_not_present, useable, lm;
3527 uint32_t *lp, entry_1, entry_2;
3528 int i;
3529
3530 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3531 if (!target_ldt_info)
3532 return -TARGET_EFAULT;
3533 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3534 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3535 ldt_info.limit = tswap32(target_ldt_info->limit);
3536 ldt_info.flags = tswap32(target_ldt_info->flags);
3537 if (ldt_info.entry_number == -1) {
3538 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3539 if (gdt_table[i] == 0) {
3540 ldt_info.entry_number = i;
3541 target_ldt_info->entry_number = tswap32(i);
3542 break;
3543 }
3544 }
3545 }
3546 unlock_user_struct(target_ldt_info, ptr, 1);
3547
3548 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3549 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3550 return -TARGET_EINVAL;
3551 seg_32bit = ldt_info.flags & 1;
3552 contents = (ldt_info.flags >> 1) & 3;
3553 read_exec_only = (ldt_info.flags >> 3) & 1;
3554 limit_in_pages = (ldt_info.flags >> 4) & 1;
3555 seg_not_present = (ldt_info.flags >> 5) & 1;
3556 useable = (ldt_info.flags >> 6) & 1;
3557 #ifdef TARGET_ABI32
3558 lm = 0;
3559 #else
3560 lm = (ldt_info.flags >> 7) & 1;
3561 #endif
3562
3563 if (contents == 3) {
3564 if (seg_not_present == 0)
3565 return -TARGET_EINVAL;
3566 }
3567
3568 /* NOTE: same code as Linux kernel */
3569 /* Allow LDTs to be cleared by the user. */
3570 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3571 if ((contents == 0 &&
3572 read_exec_only == 1 &&
3573 seg_32bit == 0 &&
3574 limit_in_pages == 0 &&
3575 seg_not_present == 1 &&
3576 useable == 0 )) {
3577 entry_1 = 0;
3578 entry_2 = 0;
3579 goto install;
3580 }
3581 }
3582
3583 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3584 (ldt_info.limit & 0x0ffff);
3585 entry_2 = (ldt_info.base_addr & 0xff000000) |
3586 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3587 (ldt_info.limit & 0xf0000) |
3588 ((read_exec_only ^ 1) << 9) |
3589 (contents << 10) |
3590 ((seg_not_present ^ 1) << 15) |
3591 (seg_32bit << 22) |
3592 (limit_in_pages << 23) |
3593 (useable << 20) |
3594 (lm << 21) |
3595 0x7000;
3596
3597 /* Install the new entry ... */
3598 install:
3599 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3600 lp[0] = tswap32(entry_1);
3601 lp[1] = tswap32(entry_2);
3602 return 0;
3603 }
3604
3605 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3606 {
3607 struct target_modify_ldt_ldt_s *target_ldt_info;
3608 uint64_t *gdt_table = g2h(env->gdt.base);
3609 uint32_t base_addr, limit, flags;
3610 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3611 int seg_not_present, useable, lm;
3612 uint32_t *lp, entry_1, entry_2;
3613
3614 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3615 if (!target_ldt_info)
3616 return -TARGET_EFAULT;
3617 idx = tswap32(target_ldt_info->entry_number);
3618 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3619 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3620 unlock_user_struct(target_ldt_info, ptr, 1);
3621 return -TARGET_EINVAL;
3622 }
3623 lp = (uint32_t *)(gdt_table + idx);
3624 entry_1 = tswap32(lp[0]);
3625 entry_2 = tswap32(lp[1]);
3626
3627 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3628 contents = (entry_2 >> 10) & 3;
3629 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3630 seg_32bit = (entry_2 >> 22) & 1;
3631 limit_in_pages = (entry_2 >> 23) & 1;
3632 useable = (entry_2 >> 20) & 1;
3633 #ifdef TARGET_ABI32
3634 lm = 0;
3635 #else
3636 lm = (entry_2 >> 21) & 1;
3637 #endif
3638 flags = (seg_32bit << 0) | (contents << 1) |
3639 (read_exec_only << 3) | (limit_in_pages << 4) |
3640 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3641 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3642 base_addr = (entry_1 >> 16) |
3643 (entry_2 & 0xff000000) |
3644 ((entry_2 & 0xff) << 16);
3645 target_ldt_info->base_addr = tswapl(base_addr);
3646 target_ldt_info->limit = tswap32(limit);
3647 target_ldt_info->flags = tswap32(flags);
3648 unlock_user_struct(target_ldt_info, ptr, 1);
3649 return 0;
3650 }
3651 #endif /* TARGET_I386 && TARGET_ABI32 */
3652
3653 #ifndef TARGET_ABI32
3654 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3655 {
3656 abi_long ret;
3657 abi_ulong val;
3658 int idx;
3659
3660 switch(code) {
3661 case TARGET_ARCH_SET_GS:
3662 case TARGET_ARCH_SET_FS:
3663 if (code == TARGET_ARCH_SET_GS)
3664 idx = R_GS;
3665 else
3666 idx = R_FS;
3667 cpu_x86_load_seg(env, idx, 0);
3668 env->segs[idx].base = addr;
3669 break;
3670 case TARGET_ARCH_GET_GS:
3671 case TARGET_ARCH_GET_FS:
3672 if (code == TARGET_ARCH_GET_GS)
3673 idx = R_GS;
3674 else
3675 idx = R_FS;
3676 val = env->segs[idx].base;
3677 if (put_user(val, addr, abi_ulong))
3678 return -TARGET_EFAULT;
3679 break;
3680 default:
3681 ret = -TARGET_EINVAL;
3682 break;
3683 }
3684 return 0;
3685 }
3686 #endif
3687
3688 #endif /* defined(TARGET_I386) */
3689
3690 #if defined(CONFIG_USE_NPTL)
3691
3692 #define NEW_STACK_SIZE PTHREAD_STACK_MIN
3693
3694 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3695 typedef struct {
3696 CPUState *env;
3697 pthread_mutex_t mutex;
3698 pthread_cond_t cond;
3699 pthread_t thread;
3700 uint32_t tid;
3701 abi_ulong child_tidptr;
3702 abi_ulong parent_tidptr;
3703 sigset_t sigmask;
3704 } new_thread_info;
3705
3706 static void *clone_func(void *arg)
3707 {
3708 new_thread_info *info = arg;
3709 CPUState *env;
3710 TaskState *ts;
3711
3712 env = info->env;
3713 thread_env = env;
3714 ts = (TaskState *)thread_env->opaque;
3715 info->tid = gettid();
3716 env->host_tid = info->tid;
3717 task_settid(ts);
3718 if (info->child_tidptr)
3719 put_user_u32(info->tid, info->child_tidptr);
3720 if (info->parent_tidptr)
3721 put_user_u32(info->tid, info->parent_tidptr);
3722 /* Enable signals. */
3723 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3724 /* Signal to the parent that we're ready. */
3725 pthread_mutex_lock(&info->mutex);
3726 pthread_cond_broadcast(&info->cond);
3727 pthread_mutex_unlock(&info->mutex);
3728 /* Wait until the parent has finshed initializing the tls state. */
3729 pthread_mutex_lock(&clone_lock);
3730 pthread_mutex_unlock(&clone_lock);
3731 cpu_loop(env);
3732 /* never exits */
3733 return NULL;
3734 }
3735 #else
3736 /* this stack is the equivalent of the kernel stack associated with a
3737 thread/process */
3738 #define NEW_STACK_SIZE 8192
3739
3740 static int clone_func(void *arg)
3741 {
3742 CPUState *env = arg;
3743 cpu_loop(env);
3744 /* never exits */
3745 return 0;
3746 }
3747 #endif
3748
3749 /* do_fork() Must return host values and target errnos (unlike most
3750 do_*() functions). */
3751 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3752 abi_ulong parent_tidptr, target_ulong newtls,
3753 abi_ulong child_tidptr)
3754 {
3755 int ret;
3756 TaskState *ts;
3757 CPUState *new_env;
3758 #if defined(CONFIG_USE_NPTL)
3759 unsigned int nptl_flags;
3760 sigset_t sigmask;
3761 #else
3762 uint8_t *new_stack;
3763 #endif
3764
3765 /* Emulate vfork() with fork() */
3766 if (flags & CLONE_VFORK)
3767 flags &= ~(CLONE_VFORK | CLONE_VM);
3768
3769 if (flags & CLONE_VM) {
3770 TaskState *parent_ts = (TaskState *)env->opaque;
3771 #if defined(CONFIG_USE_NPTL)
3772 new_thread_info info;
3773 pthread_attr_t attr;
3774 #endif
3775 ts = qemu_mallocz(sizeof(TaskState));
3776 init_task_state(ts);
3777 /* we create a new CPU instance. */
3778 new_env = cpu_copy(env);
3779 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3780 cpu_reset(new_env);
3781 #endif
3782 /* Init regs that differ from the parent. */
3783 cpu_clone_regs(new_env, newsp);
3784 new_env->opaque = ts;
3785 ts->bprm = parent_ts->bprm;
3786 ts->info = parent_ts->info;
3787 #if defined(CONFIG_USE_NPTL)
3788 nptl_flags = flags;
3789 flags &= ~CLONE_NPTL_FLAGS2;
3790
3791 if (nptl_flags & CLONE_CHILD_CLEARTID) {
3792 ts->child_tidptr = child_tidptr;
3793 }
3794
3795 if (nptl_flags & CLONE_SETTLS)
3796 cpu_set_tls (new_env, newtls);
3797
3798 /* Grab a mutex so that thread setup appears atomic. */
3799 pthread_mutex_lock(&clone_lock);
3800
3801 memset(&info, 0, sizeof(info));
3802 pthread_mutex_init(&info.mutex, NULL);
3803 pthread_mutex_lock(&info.mutex);
3804 pthread_cond_init(&info.cond, NULL);
3805 info.env = new_env;
3806 if (nptl_flags & CLONE_CHILD_SETTID)
3807 info.child_tidptr = child_tidptr;
3808 if (nptl_flags & CLONE_PARENT_SETTID)
3809 info.parent_tidptr = parent_tidptr;
3810
3811 ret = pthread_attr_init(&attr);
3812 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
3813 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
3814 /* It is not safe to deliver signals until the child has finished
3815 initializing, so temporarily block all signals. */
3816 sigfillset(&sigmask);
3817 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
3818
3819 ret = pthread_create(&info.thread, &attr, clone_func, &info);
3820 /* TODO: Free new CPU state if thread creation failed. */
3821
3822 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
3823 pthread_attr_destroy(&attr);
3824 if (ret == 0) {
3825 /* Wait for the child to initialize. */
3826 pthread_cond_wait(&info.cond, &info.mutex);
3827 ret = info.tid;
3828 if (flags & CLONE_PARENT_SETTID)
3829 put_user_u32(ret, parent_tidptr);
3830 } else {
3831 ret = -1;
3832 }
3833 pthread_mutex_unlock(&info.mutex);
3834 pthread_cond_destroy(&info.cond);
3835 pthread_mutex_destroy(&info.mutex);
3836 pthread_mutex_unlock(&clone_lock);
3837 #else
3838 if (flags & CLONE_NPTL_FLAGS2)
3839 return -EINVAL;
3840 /* This is probably going to die very quickly, but do it anyway. */
3841 new_stack = qemu_mallocz (NEW_STACK_SIZE);
3842 #ifdef __ia64__
3843 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env);
3844 #else
3845 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3846 #endif
3847 #endif
3848 } else {
3849 /* if no CLONE_VM, we consider it is a fork */
3850 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
3851 return -EINVAL;
3852 fork_start();
3853 ret = fork();
3854 if (ret == 0) {
3855 /* Child Process. */
3856 cpu_clone_regs(env, newsp);
3857 fork_end(1);
3858 #if defined(CONFIG_USE_NPTL)
3859 /* There is a race condition here. The parent process could
3860 theoretically read the TID in the child process before the child
3861 tid is set. This would require using either ptrace
3862 (not implemented) or having *_tidptr to point at a shared memory
3863 mapping. We can't repeat the spinlock hack used above because
3864 the child process gets its own copy of the lock. */
3865 if (flags & CLONE_CHILD_SETTID)
3866 put_user_u32(gettid(), child_tidptr);
3867 if (flags & CLONE_PARENT_SETTID)
3868 put_user_u32(gettid(), parent_tidptr);
3869 ts = (TaskState *)env->opaque;
3870 if (flags & CLONE_SETTLS)
3871 cpu_set_tls (env, newtls);
3872 if (flags & CLONE_CHILD_CLEARTID)
3873 ts->child_tidptr = child_tidptr;
3874 #endif
3875 } else {
3876 fork_end(0);
3877 }
3878 }
3879 return ret;
3880 }
3881
3882 /* warning : doesn't handle linux specific flags... */
3883 static int target_to_host_fcntl_cmd(int cmd)
3884 {
3885 switch(cmd) {
3886 case TARGET_F_DUPFD:
3887 case TARGET_F_GETFD:
3888 case TARGET_F_SETFD:
3889 case TARGET_F_GETFL:
3890 case TARGET_F_SETFL:
3891 return cmd;
3892 case TARGET_F_GETLK:
3893 return F_GETLK;
3894 case TARGET_F_SETLK:
3895 return F_SETLK;
3896 case TARGET_F_SETLKW:
3897 return F_SETLKW;
3898 case TARGET_F_GETOWN:
3899 return F_GETOWN;
3900 case TARGET_F_SETOWN:
3901 return F_SETOWN;
3902 case TARGET_F_GETSIG:
3903 return F_GETSIG;
3904 case TARGET_F_SETSIG:
3905 return F_SETSIG;
3906 #if TARGET_ABI_BITS == 32
3907 case TARGET_F_GETLK64:
3908 return F_GETLK64;
3909 case TARGET_F_SETLK64:
3910 return F_SETLK64;
3911 case TARGET_F_SETLKW64:
3912 return F_SETLKW64;
3913 #endif
3914 case TARGET_F_SETLEASE:
3915 return F_SETLEASE;
3916 case TARGET_F_GETLEASE:
3917 return F_GETLEASE;
3918 #ifdef F_DUPFD_CLOEXEC
3919 case TARGET_F_DUPFD_CLOEXEC:
3920 return F_DUPFD_CLOEXEC;
3921 #endif
3922 case TARGET_F_NOTIFY:
3923 return F_NOTIFY;
3924 default:
3925 return -TARGET_EINVAL;
3926 }
3927 return -TARGET_EINVAL;
3928 }
3929
3930 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
3931 {
3932 struct flock fl;
3933 struct target_flock *target_fl;
3934 struct flock64 fl64;
3935 struct target_flock64 *target_fl64;
3936 abi_long ret;
3937 int host_cmd = target_to_host_fcntl_cmd(cmd);
3938
3939 if (host_cmd == -TARGET_EINVAL)
3940 return host_cmd;
3941
3942 switch(cmd) {
3943 case TARGET_F_GETLK:
3944 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3945 return -TARGET_EFAULT;
3946 fl.l_type = tswap16(target_fl->l_type);
3947 fl.l_whence = tswap16(target_fl->l_whence);
3948 fl.l_start = tswapl(target_fl->l_start);
3949 fl.l_len = tswapl(target_fl->l_len);
3950 fl.l_pid = tswap32(target_fl->l_pid);
3951 unlock_user_struct(target_fl, arg, 0);
3952 ret = get_errno(fcntl(fd, host_cmd, &fl));
3953 if (ret == 0) {
3954 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
3955 return -TARGET_EFAULT;
3956 target_fl->l_type = tswap16(fl.l_type);
3957 target_fl->l_whence = tswap16(fl.l_whence);
3958 target_fl->l_start = tswapl(fl.l_start);
3959 target_fl->l_len = tswapl(fl.l_len);
3960 target_fl->l_pid = tswap32(fl.l_pid);
3961 unlock_user_struct(target_fl, arg, 1);
3962 }
3963 break;
3964
3965 case TARGET_F_SETLK:
3966 case TARGET_F_SETLKW:
3967 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3968 return -TARGET_EFAULT;
3969 fl.l_type = tswap16(target_fl->l_type);
3970 fl.l_whence = tswap16(target_fl->l_whence);
3971 fl.l_start = tswapl(target_fl->l_start);
3972 fl.l_len = tswapl(target_fl->l_len);
3973 fl.l_pid = tswap32(target_fl->l_pid);
3974 unlock_user_struct(target_fl, arg, 0);
3975 ret = get_errno(fcntl(fd, host_cmd, &fl));
3976 break;
3977
3978 case TARGET_F_GETLK64:
3979 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3980 return -TARGET_EFAULT;
3981 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3982 fl64.l_whence = tswap16(target_fl64->l_whence);
3983 fl64.l_start = tswapl(target_fl64->l_start);
3984 fl64.l_len = tswapl(target_fl64->l_len);
3985 fl64.l_pid = tswap32(target_fl64->l_pid);
3986 unlock_user_struct(target_fl64, arg, 0);
3987 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3988 if (ret == 0) {
3989 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
3990 return -TARGET_EFAULT;
3991 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
3992 target_fl64->l_whence = tswap16(fl64.l_whence);
3993 target_fl64->l_start = tswapl(fl64.l_start);
3994 target_fl64->l_len = tswapl(fl64.l_len);
3995 target_fl64->l_pid = tswap32(fl64.l_pid);
3996 unlock_user_struct(target_fl64, arg, 1);
3997 }
3998 break;
3999 case TARGET_F_SETLK64:
4000 case TARGET_F_SETLKW64:
4001 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4002 return -TARGET_EFAULT;
4003 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
4004 fl64.l_whence = tswap16(target_fl64->l_whence);
4005 fl64.l_start = tswapl(target_fl64->l_start);
4006 fl64.l_len = tswapl(target_fl64->l_len);
4007 fl64.l_pid = tswap32(target_fl64->l_pid);
4008 unlock_user_struct(target_fl64, arg, 0);
4009 ret = get_errno(fcntl(fd, host_cmd, &fl64));
4010 break;
4011
4012 case TARGET_F_GETFL:
4013 ret = get_errno(fcntl(fd, host_cmd, arg));
4014 if (ret >= 0) {
4015 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
4016 }
4017 break;
4018
4019 case TARGET_F_SETFL:
4020 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
4021 break;
4022
4023 case TARGET_F_SETOWN:
4024 case TARGET_F_GETOWN:
4025 case TARGET_F_SETSIG:
4026 case TARGET_F_GETSIG:
4027 case TARGET_F_SETLEASE:
4028 case TARGET_F_GETLEASE:
4029 ret = get_errno(fcntl(fd, host_cmd, arg));
4030 break;
4031
4032 default:
4033 ret = get_errno(fcntl(fd, cmd, arg));
4034 break;
4035 }
4036 return ret;
4037 }
4038
4039 #ifdef USE_UID16
4040
4041 static inline int high2lowuid(int uid)
4042 {
4043 if (uid > 65535)
4044 return 65534;
4045 else
4046 return uid;
4047 }
4048
4049 static inline int high2lowgid(int gid)
4050 {
4051 if (gid > 65535)
4052 return 65534;
4053 else
4054 return gid;
4055 }
4056
4057 static inline int low2highuid(int uid)
4058 {
4059 if ((int16_t)uid == -1)
4060 return -1;
4061 else
4062 return uid;
4063 }
4064
4065 static inline int low2highgid(int gid)
4066 {
4067 if ((int16_t)gid == -1)
4068 return -1;
4069 else
4070 return gid;
4071 }
4072
4073 #endif /* USE_UID16 */
4074
4075 void syscall_init(void)
4076 {
4077 IOCTLEntry *ie;
4078 const argtype *arg_type;
4079 int size;
4080 int i;
4081
4082 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
4083 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
4084 #include "syscall_types.h"
4085 #undef STRUCT
4086 #undef STRUCT_SPECIAL
4087
4088 /* we patch the ioctl size if necessary. We rely on the fact that
4089 no ioctl has all the bits at '1' in the size field */
4090 ie = ioctl_entries;
4091 while (ie->target_cmd != 0) {
4092 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4093 TARGET_IOC_SIZEMASK) {
4094 arg_type = ie->arg_type;
4095 if (arg_type[0] != TYPE_PTR) {
4096 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
4097 ie->target_cmd);
4098 exit(1);
4099 }
4100 arg_type++;
4101 size = thunk_type_size(arg_type, 0);
4102 ie->target_cmd = (ie->target_cmd &
4103 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4104 (size << TARGET_IOC_SIZESHIFT);
4105 }
4106
4107 /* Build target_to_host_errno_table[] table from
4108 * host_to_target_errno_table[]. */
4109 for (i=0; i < ERRNO_TABLE_SIZE; i++)
4110 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4111
4112 /* automatic consistency check if same arch */
4113 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4114 (defined(__x86_64__) && defined(TARGET_X86_64))
4115 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4116 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4117 ie->name, ie->target_cmd, ie->host_cmd);
4118 }
4119 #endif
4120 ie++;
4121 }
4122 }
4123
4124 #if TARGET_ABI_BITS == 32
4125 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4126 {
4127 #ifdef TARGET_WORDS_BIGENDIAN
4128 return ((uint64_t)word0 << 32) | word1;
4129 #else
4130 return ((uint64_t)word1 << 32) | word0;
4131 #endif
4132 }
4133 #else /* TARGET_ABI_BITS == 32 */
4134 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4135 {
4136 return word0;
4137 }
4138 #endif /* TARGET_ABI_BITS != 32 */
4139
4140 #ifdef TARGET_NR_truncate64
4141 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4142 abi_long arg2,
4143 abi_long arg3,
4144 abi_long arg4)
4145 {
4146 #ifdef TARGET_ARM
4147 if (((CPUARMState *)cpu_env)->eabi)
4148 {
4149 arg2 = arg3;
4150 arg3 = arg4;
4151 }
4152 #endif
4153 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4154 }
4155 #endif
4156
4157 #ifdef TARGET_NR_ftruncate64
4158 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4159 abi_long arg2,
4160 abi_long arg3,
4161 abi_long arg4)
4162 {
4163 #ifdef TARGET_ARM
4164 if (((CPUARMState *)cpu_env)->eabi)
4165 {
4166 arg2 = arg3;
4167 arg3 = arg4;
4168 }
4169 #endif
4170 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4171 }
4172 #endif
4173
4174 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4175 abi_ulong target_addr)
4176 {
4177 struct target_timespec *target_ts;
4178
4179 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4180 return -TARGET_EFAULT;
4181 host_ts->tv_sec = tswapl(target_ts->tv_sec);
4182 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
4183 unlock_user_struct(target_ts, target_addr, 0);
4184 return 0;
4185 }
4186
4187 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4188 struct timespec *host_ts)
4189 {
4190 struct target_timespec *target_ts;
4191
4192 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4193 return -TARGET_EFAULT;
4194 target_ts->tv_sec = tswapl(host_ts->tv_sec);
4195 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
4196 unlock_user_struct(target_ts, target_addr, 1);
4197 return 0;
4198 }
4199
4200 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
4201 static inline abi_long host_to_target_stat64(void *cpu_env,
4202 abi_ulong target_addr,
4203 struct stat *host_st)
4204 {
4205 #ifdef TARGET_ARM
4206 if (((CPUARMState *)cpu_env)->eabi) {
4207 struct target_eabi_stat64 *target_st;
4208
4209 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4210 return -TARGET_EFAULT;
4211 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4212 __put_user(host_st->st_dev, &target_st->st_dev);
4213 __put_user(host_st->st_ino, &target_st->st_ino);
4214 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4215 __put_user(host_st->st_ino, &target_st->__st_ino);
4216 #endif
4217 __put_user(host_st->st_mode, &target_st->st_mode);
4218 __put_user(host_st->st_nlink, &target_st->st_nlink);
4219 __put_user(host_st->st_uid, &target_st->st_uid);
4220 __put_user(host_st->st_gid, &target_st->st_gid);
4221 __put_user(host_st->st_rdev, &target_st->st_rdev);
4222 __put_user(host_st->st_size, &target_st->st_size);
4223 __put_user(host_st->st_blksize, &target_st->st_blksize);
4224 __put_user(host_st->st_blocks, &target_st->st_blocks);
4225 __put_user(host_st->st_atime, &target_st->target_st_atime);
4226 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4227 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4228 unlock_user_struct(target_st, target_addr, 1);
4229 } else
4230 #endif
4231 {
4232 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
4233 struct target_stat *target_st;
4234 #else
4235 struct target_stat64 *target_st;
4236 #endif
4237
4238 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4239 return -TARGET_EFAULT;
4240 memset(target_st, 0, sizeof(*target_st));
4241 __put_user(host_st->st_dev, &target_st->st_dev);
4242 __put_user(host_st->st_ino, &target_st->st_ino);
4243 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4244 __put_user(host_st->st_ino, &target_st->__st_ino);
4245 #endif
4246 __put_user(host_st->st_mode, &target_st->st_mode);
4247 __put_user(host_st->st_nlink, &target_st->st_nlink);
4248 __put_user(host_st->st_uid, &target_st->st_uid);
4249 __put_user(host_st->st_gid, &target_st->st_gid);
4250 __put_user(host_st->st_rdev, &target_st->st_rdev);
4251 /* XXX: better use of kernel struct */
4252 __put_user(host_st->st_size, &target_st->st_size);
4253 __put_user(host_st->st_blksize, &target_st->st_blksize);
4254 __put_user(host_st->st_blocks, &target_st->st_blocks);
4255 __put_user(host_st->st_atime, &target_st->target_st_atime);
4256 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4257 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4258 unlock_user_struct(target_st, target_addr, 1);
4259 }
4260
4261 return 0;
4262 }
4263 #endif
4264
4265 #if defined(CONFIG_USE_NPTL)
4266 /* ??? Using host futex calls even when target atomic operations
4267 are not really atomic probably breaks things. However implementing
4268 futexes locally would make futexes shared between multiple processes
4269 tricky. However they're probably useless because guest atomic
4270 operations won't work either. */
4271 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4272 target_ulong uaddr2, int val3)
4273 {
4274 struct timespec ts, *pts;
4275 int base_op;
4276
4277 /* ??? We assume FUTEX_* constants are the same on both host
4278 and target. */
4279 #ifdef FUTEX_CMD_MASK
4280 base_op = op & FUTEX_CMD_MASK;
4281 #else
4282 base_op = op;
4283 #endif
4284 switch (base_op) {
4285 case FUTEX_WAIT:
4286 if (timeout) {
4287 pts = &ts;
4288 target_to_host_timespec(pts, timeout);
4289 } else {
4290 pts = NULL;
4291 }
4292 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4293 pts, NULL, 0));
4294 case FUTEX_WAKE:
4295 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4296 case FUTEX_FD:
4297 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4298 case FUTEX_REQUEUE:
4299 case FUTEX_CMP_REQUEUE:
4300 case FUTEX_WAKE_OP:
4301 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4302 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4303 But the prototype takes a `struct timespec *'; insert casts
4304 to satisfy the compiler. We do not need to tswap TIMEOUT
4305 since it's not compared to guest memory. */
4306 pts = (struct timespec *)(uintptr_t) timeout;
4307 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4308 g2h(uaddr2),
4309 (base_op == FUTEX_CMP_REQUEUE
4310 ? tswap32(val3)
4311 : val3)));
4312 default:
4313 return -TARGET_ENOSYS;
4314 }
4315 }
4316 #endif
4317
4318 /* Map host to target signal numbers for the wait family of syscalls.
4319 Assume all other status bits are the same. */
4320 static int host_to_target_waitstatus(int status)
4321 {
4322 if (WIFSIGNALED(status)) {
4323 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4324 }
4325 if (WIFSTOPPED(status)) {
4326 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4327 | (status & 0xff);
4328 }
4329 return status;
4330 }
4331
4332 int get_osversion(void)
4333 {
4334 static int osversion;
4335 struct new_utsname buf;
4336 const char *s;
4337 int i, n, tmp;
4338 if (osversion)
4339 return osversion;
4340 if (qemu_uname_release && *qemu_uname_release) {
4341 s = qemu_uname_release;
4342 } else {
4343 if (sys_uname(&buf))
4344 return 0;
4345 s = buf.release;
4346 }
4347 tmp = 0;
4348 for (i = 0; i < 3; i++) {
4349 n = 0;
4350 while (*s >= '0' && *s <= '9') {
4351 n *= 10;
4352 n += *s - '0';
4353 s++;
4354 }
4355 tmp = (tmp << 8) + n;
4356 if (*s == '.')
4357 s++;
4358 }
4359 osversion = tmp;
4360 return osversion;
4361 }
4362
4363 /* do_syscall() should always have a single exit point at the end so
4364 that actions, such as logging of syscall results, can be performed.
4365 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4366 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4367 abi_long arg2, abi_long arg3, abi_long arg4,
4368 abi_long arg5, abi_long arg6)
4369 {
4370 abi_long ret;
4371 struct stat st;
4372 struct statfs stfs;
4373 void *p;
4374
4375 #ifdef DEBUG
4376 gemu_log("syscall %d", num);
4377 #endif
4378 if(do_strace)
4379 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4380
4381 switch(num) {
4382 case TARGET_NR_exit:
4383 #ifdef CONFIG_USE_NPTL
4384 /* In old applications this may be used to implement _exit(2).
4385 However in threaded applictions it is used for thread termination,
4386 and _exit_group is used for application termination.
4387 Do thread termination if we have more then one thread. */
4388 /* FIXME: This probably breaks if a signal arrives. We should probably
4389 be disabling signals. */
4390 if (first_cpu->next_cpu) {
4391 TaskState *ts;
4392 CPUState **lastp;
4393 CPUState *p;
4394
4395 cpu_list_lock();
4396 lastp = &first_cpu;
4397 p = first_cpu;
4398 while (p && p != (CPUState *)cpu_env) {
4399 lastp = &p->next_cpu;
4400 p = p->next_cpu;
4401 }
4402 /* If we didn't find the CPU for this thread then something is
4403 horribly wrong. */
4404 if (!p)
4405 abort();
4406 /* Remove the CPU from the list. */
4407 *lastp = p->next_cpu;
4408 cpu_list_unlock();
4409 ts = ((CPUState *)cpu_env)->opaque;
4410 if (ts->child_tidptr) {
4411 put_user_u32(0, ts->child_tidptr);
4412 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4413 NULL, NULL, 0);
4414 }
4415 thread_env = NULL;
4416 qemu_free(cpu_env);
4417 qemu_free(ts);
4418 pthread_exit(NULL);
4419 }
4420 #endif
4421 #ifdef TARGET_GPROF
4422 _mcleanup();
4423 #endif
4424 gdb_exit(cpu_env, arg1);
4425 _exit(arg1);
4426 ret = 0; /* avoid warning */
4427 break;
4428 case TARGET_NR_read:
4429 if (arg3 == 0)
4430 ret = 0;
4431 else {
4432 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4433 goto efault;
4434 ret = get_errno(read(arg1, p, arg3));
4435 unlock_user(p, arg2, ret);
4436 }
4437 break;
4438 case TARGET_NR_write:
4439 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4440 goto efault;
4441 ret = get_errno(write(arg1, p, arg3));
4442 unlock_user(p, arg2, 0);
4443 break;
4444 case TARGET_NR_open:
4445 if (!(p = lock_user_string(arg1)))
4446 goto efault;
4447 ret = get_errno(open(path(p),
4448 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4449 arg3));
4450 unlock_user(p, arg1, 0);
4451 break;
4452 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4453 case TARGET_NR_openat:
4454 if (!(p = lock_user_string(arg2)))
4455 goto efault;
4456 ret = get_errno(sys_openat(arg1,
4457 path(p),
4458 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4459 arg4));
4460 unlock_user(p, arg2, 0);
4461 break;
4462 #endif
4463 case TARGET_NR_close:
4464 ret = get_errno(close(arg1));
4465 break;
4466 case TARGET_NR_brk:
4467 ret = do_brk(arg1);
4468 break;
4469 case TARGET_NR_fork:
4470 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4471 break;
4472 #ifdef TARGET_NR_waitpid
4473 case TARGET_NR_waitpid:
4474 {
4475 int status;
4476 ret = get_errno(waitpid(arg1, &status, arg3));
4477 if (!is_error(ret) && arg2
4478 && put_user_s32(host_to_target_waitstatus(status), arg2))
4479 goto efault;
4480 }
4481 break;
4482 #endif
4483 #ifdef TARGET_NR_waitid
4484 case TARGET_NR_waitid:
4485 {
4486 siginfo_t info;
4487 info.si_pid = 0;
4488 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4489 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4490 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4491 goto efault;
4492 host_to_target_siginfo(p, &info);
4493 unlock_user(p, arg3, sizeof(target_siginfo_t));
4494 }
4495 }
4496 break;
4497 #endif
4498 #ifdef TARGET_NR_creat /* not on alpha */
4499 case TARGET_NR_creat:
4500 if (!(p = lock_user_string(arg1)))
4501 goto efault;
4502 ret = get_errno(creat(p, arg2));
4503 unlock_user(p, arg1, 0);
4504 break;
4505 #endif
4506 case TARGET_NR_link:
4507 {
4508 void * p2;
4509 p = lock_user_string(arg1);
4510 p2 = lock_user_string(arg2);
4511 if (!p || !p2)
4512 ret = -TARGET_EFAULT;
4513 else
4514 ret = get_errno(link(p, p2));
4515 unlock_user(p2, arg2, 0);
4516 unlock_user(p, arg1, 0);
4517 }
4518 break;
4519 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4520 case TARGET_NR_linkat:
4521 {
4522 void * p2 = NULL;
4523 if (!arg2 || !arg4)
4524 goto efault;
4525 p = lock_user_string(arg2);
4526 p2 = lock_user_string(arg4);
4527 if (!p || !p2)
4528 ret = -TARGET_EFAULT;
4529 else
4530 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4531 unlock_user(p, arg2, 0);
4532 unlock_user(p2, arg4, 0);
4533 }
4534 break;
4535 #endif
4536 case TARGET_NR_unlink:
4537 if (!(p = lock_user_string(arg1)))
4538 goto efault;
4539 ret = get_errno(unlink(p));
4540 unlock_user(p, arg1, 0);
4541 break;
4542 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4543 case TARGET_NR_unlinkat:
4544 if (!(p = lock_user_string(arg2)))
4545 goto efault;
4546 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4547 unlock_user(p, arg2, 0);
4548 break;
4549 #endif
4550 case TARGET_NR_execve:
4551 {
4552 char **argp, **envp;
4553 int argc, envc;
4554 abi_ulong gp;
4555 abi_ulong guest_argp;
4556 abi_ulong guest_envp;
4557 abi_ulong addr;
4558 char **q;
4559
4560 argc = 0;
4561 guest_argp = arg2;
4562 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4563 if (get_user_ual(addr, gp))
4564 goto efault;
4565 if (!addr)
4566 break;
4567 argc++;
4568 }
4569 envc = 0;
4570 guest_envp = arg3;
4571 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4572 if (get_user_ual(addr, gp))
4573 goto efault;
4574 if (!addr)
4575 break;
4576 envc++;
4577 }
4578
4579 argp = alloca((argc + 1) * sizeof(void *));
4580 envp = alloca((envc + 1) * sizeof(void *));
4581
4582 for (gp = guest_argp, q = argp; gp;
4583 gp += sizeof(abi_ulong), q++) {
4584 if (get_user_ual(addr, gp))
4585 goto execve_efault;
4586 if (!addr)
4587 break;
4588 if (!(*q = lock_user_string(addr)))
4589 goto execve_efault;
4590 }
4591 *q = NULL;
4592
4593 for (gp = guest_envp, q = envp; gp;
4594 gp += sizeof(abi_ulong), q++) {
4595 if (get_user_ual(addr, gp))
4596 goto execve_efault;
4597 if (!addr)
4598 break;
4599 if (!(*q = lock_user_string(addr)))
4600 goto execve_efault;
4601 }
4602 *q = NULL;
4603
4604 if (!(p = lock_user_string(arg1)))
4605 goto execve_efault;
4606 ret = get_errno(execve(p, argp, envp));
4607 unlock_user(p, arg1, 0);
4608
4609 goto execve_end;
4610
4611 execve_efault:
4612 ret = -TARGET_EFAULT;
4613
4614 execve_end:
4615 for (gp = guest_argp, q = argp; *q;
4616 gp += sizeof(abi_ulong), q++) {
4617 if (get_user_ual(addr, gp)
4618 || !addr)
4619 break;
4620 unlock_user(*q, addr, 0);
4621 }
4622 for (gp = guest_envp, q = envp; *q;
4623 gp += sizeof(abi_ulong), q++) {
4624 if (get_user_ual(addr, gp)
4625 || !addr)
4626 break;
4627 unlock_user(*q, addr, 0);
4628 }
4629 }
4630 break;
4631 case TARGET_NR_chdir:
4632 if (!(p = lock_user_string(arg1)))
4633 goto efault;
4634 ret = get_errno(chdir(p));
4635 unlock_user(p, arg1, 0);
4636 break;
4637 #ifdef TARGET_NR_time
4638 case TARGET_NR_time:
4639 {
4640 time_t host_time;
4641 ret = get_errno(time(&host_time));
4642 if (!is_error(ret)
4643 && arg1
4644 && put_user_sal(host_time, arg1))
4645 goto efault;
4646 }
4647 break;
4648 #endif
4649 case TARGET_NR_mknod:
4650 if (!(p = lock_user_string(arg1)))
4651 goto efault;
4652 ret = get_errno(mknod(p, arg2, arg3));
4653 unlock_user(p, arg1, 0);
4654 break;
4655 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4656 case TARGET_NR_mknodat:
4657 if (!(p = lock_user_string(arg2)))
4658 goto efault;
4659 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4660 unlock_user(p, arg2, 0);
4661 break;
4662 #endif
4663 case TARGET_NR_chmod:
4664 if (!(p = lock_user_string(arg1)))
4665 goto efault;
4666 ret = get_errno(chmod(p, arg2));
4667 unlock_user(p, arg1, 0);
4668 break;
4669 #ifdef TARGET_NR_break
4670 case TARGET_NR_break:
4671 goto unimplemented;
4672 #endif
4673 #ifdef TARGET_NR_oldstat
4674 case TARGET_NR_oldstat:
4675 goto unimplemented;
4676 #endif
4677 case TARGET_NR_lseek:
4678 ret = get_errno(lseek(arg1, arg2, arg3));
4679 break;
4680 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
4681 /* Alpha specific */
4682 case TARGET_NR_getxpid:
4683 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
4684 ret = get_errno(getpid());
4685 break;
4686 #endif
4687 #ifdef TARGET_NR_getpid
4688 case TARGET_NR_getpid:
4689 ret = get_errno(getpid());
4690 break;
4691 #endif
4692 case TARGET_NR_mount:
4693 {
4694 /* need to look at the data field */
4695 void *p2, *p3;
4696 p = lock_user_string(arg1);
4697 p2 = lock_user_string(arg2);
4698 p3 = lock_user_string(arg3);
4699 if (!p || !p2 || !p3)
4700 ret = -TARGET_EFAULT;
4701 else {
4702 /* FIXME - arg5 should be locked, but it isn't clear how to
4703 * do that since it's not guaranteed to be a NULL-terminated
4704 * string.
4705 */
4706 if ( ! arg5 )
4707 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
4708 else
4709 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4710 }
4711 unlock_user(p, arg1, 0);
4712 unlock_user(p2, arg2, 0);
4713 unlock_user(p3, arg3, 0);
4714 break;
4715 }
4716 #ifdef TARGET_NR_umount
4717 case TARGET_NR_umount:
4718 if (!(p = lock_user_string(arg1)))
4719 goto efault;
4720 ret = get_errno(umount(p));
4721 unlock_user(p, arg1, 0);
4722 break;
4723 #endif
4724 #ifdef TARGET_NR_stime /* not on alpha */
4725 case TARGET_NR_stime:
4726 {
4727 time_t host_time;
4728 if (get_user_sal(host_time, arg1))
4729 goto efault;
4730 ret = get_errno(stime(&host_time));
4731 }
4732 break;
4733 #endif
4734 case TARGET_NR_ptrace:
4735 goto unimplemented;
4736 #ifdef TARGET_NR_alarm /* not on alpha */
4737 case TARGET_NR_alarm:
4738 ret = alarm(arg1);
4739 break;
4740 #endif
4741 #ifdef TARGET_NR_oldfstat
4742 case TARGET_NR_oldfstat:
4743 goto unimplemented;
4744 #endif
4745 #ifdef TARGET_NR_pause /* not on alpha */
4746 case TARGET_NR_pause:
4747 ret = get_errno(pause());
4748 break;
4749 #endif
4750 #ifdef TARGET_NR_utime
4751 case TARGET_NR_utime:
4752 {
4753 struct utimbuf tbuf, *host_tbuf;
4754 struct target_utimbuf *target_tbuf;
4755 if (arg2) {
4756 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4757 goto efault;
4758 tbuf.actime = tswapl(target_tbuf->actime);
4759 tbuf.modtime = tswapl(target_tbuf->modtime);
4760 unlock_user_struct(target_tbuf, arg2, 0);
4761 host_tbuf = &tbuf;
4762 } else {
4763 host_tbuf = NULL;
4764 }
4765 if (!(p = lock_user_string(arg1)))
4766 goto efault;
4767 ret = get_errno(utime(p, host_tbuf));
4768 unlock_user(p, arg1, 0);
4769 }
4770 break;
4771 #endif
4772 case TARGET_NR_utimes:
4773 {
4774 struct timeval *tvp, tv[2];
4775 if (arg2) {
4776 if (copy_from_user_timeval(&tv[0], arg2)
4777 || copy_from_user_timeval(&tv[1],
4778 arg2 + sizeof(struct target_timeval)))
4779 goto efault;
4780 tvp = tv;
4781 } else {
4782 tvp = NULL;
4783 }
4784 if (!(p = lock_user_string(arg1)))
4785 goto efault;
4786 ret = get_errno(utimes(p, tvp));
4787 unlock_user(p, arg1, 0);
4788 }
4789 break;
4790 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
4791 case TARGET_NR_futimesat:
4792 {
4793 struct timeval *tvp, tv[2];
4794 if (arg3) {
4795 if (copy_from_user_timeval(&tv[0], arg3)
4796 || copy_from_user_timeval(&tv[1],
4797 arg3 + sizeof(struct target_timeval)))
4798 goto efault;
4799 tvp = tv;
4800 } else {
4801 tvp = NULL;
4802 }
4803 if (!(p = lock_user_string(arg2)))
4804 goto efault;
4805 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
4806 unlock_user(p, arg2, 0);
4807 }
4808 break;
4809 #endif
4810 #ifdef TARGET_NR_stty
4811 case TARGET_NR_stty:
4812 goto unimplemented;
4813 #endif
4814 #ifdef TARGET_NR_gtty
4815 case TARGET_NR_gtty:
4816 goto unimplemented;
4817 #endif
4818 case TARGET_NR_access:
4819 if (!(p = lock_user_string(arg1)))
4820 goto efault;
4821 ret = get_errno(access(path(p), arg2));
4822 unlock_user(p, arg1, 0);
4823 break;
4824 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
4825 case TARGET_NR_faccessat:
4826 if (!(p = lock_user_string(arg2)))
4827 goto efault;
4828 ret = get_errno(sys_faccessat(arg1, p, arg3));
4829 unlock_user(p, arg2, 0);
4830 break;
4831 #endif
4832 #ifdef TARGET_NR_nice /* not on alpha */
4833 case TARGET_NR_nice:
4834 ret = get_errno(nice(arg1));
4835 break;
4836 #endif
4837 #ifdef TARGET_NR_ftime
4838 case TARGET_NR_ftime:
4839 goto unimplemented;
4840 #endif
4841 case TARGET_NR_sync:
4842 sync();
4843 ret = 0;
4844 break;
4845 case TARGET_NR_kill:
4846 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
4847 break;
4848 case TARGET_NR_rename:
4849 {
4850 void *p2;
4851 p = lock_user_string(arg1);
4852 p2 = lock_user_string(arg2);
4853 if (!p || !p2)
4854 ret = -TARGET_EFAULT;
4855 else
4856 ret = get_errno(rename(p, p2));
4857 unlock_user(p2, arg2, 0);
4858 unlock_user(p, arg1, 0);
4859 }
4860 break;
4861 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
4862 case TARGET_NR_renameat:
4863 {
4864 void *p2;
4865 p = lock_user_string(arg2);
4866 p2 = lock_user_string(arg4);
4867 if (!p || !p2)
4868 ret = -TARGET_EFAULT;
4869 else
4870 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
4871 unlock_user(p2, arg4, 0);
4872 unlock_user(p, arg2, 0);
4873 }
4874 break;
4875 #endif
4876 case TARGET_NR_mkdir:
4877 if (!(p = lock_user_string(arg1)))
4878 goto efault;
4879 ret = get_errno(mkdir(p, arg2));
4880 unlock_user(p, arg1, 0);
4881 break;
4882 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
4883 case TARGET_NR_mkdirat:
4884 if (!(p = lock_user_string(arg2)))
4885 goto efault;
4886 ret = get_errno(sys_mkdirat(arg1, p, arg3));
4887 unlock_user(p, arg2, 0);
4888 break;
4889 #endif
4890 case TARGET_NR_rmdir:
4891 if (!(p = lock_user_string(arg1)))
4892 goto efault;
4893 ret = get_errno(rmdir(p));
4894 unlock_user(p, arg1, 0);
4895 break;
4896 case TARGET_NR_dup:
4897 ret = get_errno(dup(arg1));
4898 break;
4899 case TARGET_NR_pipe:
4900 ret = do_pipe(cpu_env, arg1, 0, 0);
4901 break;
4902 #ifdef TARGET_NR_pipe2
4903 case TARGET_NR_pipe2:
4904 ret = do_pipe(cpu_env, arg1, arg2, 1);
4905 break;
4906 #endif
4907 case TARGET_NR_times:
4908 {
4909 struct target_tms *tmsp;
4910 struct tms tms;
4911 ret = get_errno(times(&tms));
4912 if (arg1) {
4913 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
4914 if (!tmsp)
4915 goto efault;
4916 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
4917 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
4918 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
4919 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
4920 }
4921 if (!is_error(ret))
4922 ret = host_to_target_clock_t(ret);
4923 }
4924 break;
4925 #ifdef TARGET_NR_prof
4926 case TARGET_NR_prof:
4927 goto unimplemented;
4928 #endif
4929 #ifdef TARGET_NR_signal
4930 case TARGET_NR_signal:
4931 goto unimplemented;
4932 #endif
4933 case TARGET_NR_acct:
4934 if (arg1 == 0) {
4935 ret = get_errno(acct(NULL));
4936 } else {
4937 if (!(p = lock_user_string(arg1)))
4938 goto efault;
4939 ret = get_errno(acct(path(p)));
4940 unlock_user(p, arg1, 0);
4941 }
4942 break;
4943 #ifdef TARGET_NR_umount2 /* not on alpha */
4944 case TARGET_NR_umount2:
4945 if (!(p = lock_user_string(arg1)))
4946 goto efault;
4947 ret = get_errno(umount2(p, arg2));
4948 unlock_user(p, arg1, 0);
4949 break;
4950 #endif
4951 #ifdef TARGET_NR_lock
4952 case TARGET_NR_lock:
4953 goto unimplemented;
4954 #endif
4955 case TARGET_NR_ioctl:
4956 ret = do_ioctl(arg1, arg2, arg3);
4957 break;
4958 case TARGET_NR_fcntl:
4959 ret = do_fcntl(arg1, arg2, arg3);
4960 break;
4961 #ifdef TARGET_NR_mpx
4962 case TARGET_NR_mpx:
4963 goto unimplemented;
4964 #endif
4965 case TARGET_NR_setpgid:
4966 ret = get_errno(setpgid(arg1, arg2));
4967 break;
4968 #ifdef TARGET_NR_ulimit
4969 case TARGET_NR_ulimit:
4970 goto unimplemented;
4971 #endif
4972 #ifdef TARGET_NR_oldolduname
4973 case TARGET_NR_oldolduname:
4974 goto unimplemented;
4975 #endif
4976 case TARGET_NR_umask:
4977 ret = get_errno(umask(arg1));
4978 break;
4979 case TARGET_NR_chroot:
4980 if (!(p = lock_user_string(arg1)))
4981 goto efault;
4982 ret = get_errno(chroot(p));
4983 unlock_user(p, arg1, 0);
4984 break;
4985 case TARGET_NR_ustat:
4986 goto unimplemented;
4987 case TARGET_NR_dup2:
4988 ret = get_errno(dup2(arg1, arg2));
4989 break;
4990 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
4991 case TARGET_NR_dup3:
4992 ret = get_errno(dup3(arg1, arg2, arg3));
4993 break;
4994 #endif
4995 #ifdef TARGET_NR_getppid /* not on alpha */
4996 case TARGET_NR_getppid:
4997 ret = get_errno(getppid());
4998 break;
4999 #endif
5000 case TARGET_NR_getpgrp:
5001 ret = get_errno(getpgrp());
5002 break;
5003 case TARGET_NR_setsid:
5004 ret = get_errno(setsid());
5005 break;
5006 #ifdef TARGET_NR_sigaction
5007 case TARGET_NR_sigaction:
5008 {
5009 #if defined(TARGET_ALPHA)
5010 struct target_sigaction act, oact, *pact = 0;
5011 struct target_old_sigaction *old_act;
5012 if (arg2) {
5013 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5014 goto efault;
5015 act._sa_handler = old_act->_sa_handler;
5016 target_siginitset(&act.sa_mask, old_act->sa_mask);
5017 act.sa_flags = old_act->sa_flags;
5018 act.sa_restorer = 0;
5019 unlock_user_struct(old_act, arg2, 0);
5020 pact = &act;
5021 }
5022 ret = get_errno(do_sigaction(arg1, pact, &oact));
5023 if (!is_error(ret) && arg3) {
5024 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5025 goto efault;
5026 old_act->_sa_handler = oact._sa_handler;
5027 old_act->sa_mask = oact.sa_mask.sig[0];
5028 old_act->sa_flags = oact.sa_flags;
5029 unlock_user_struct(old_act, arg3, 1);
5030 }
5031 #elif defined(TARGET_MIPS)
5032 struct target_sigaction act, oact, *pact, *old_act;
5033
5034 if (arg2) {
5035 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5036 goto efault;
5037 act._sa_handler = old_act->_sa_handler;
5038 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5039 act.sa_flags = old_act->sa_flags;
5040 unlock_user_struct(old_act, arg2, 0);
5041 pact = &act;
5042 } else {
5043 pact = NULL;
5044 }
5045
5046 ret = get_errno(do_sigaction(arg1, pact, &oact));
5047
5048 if (!is_error(ret) && arg3) {
5049 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5050 goto efault;
5051 old_act->_sa_handler = oact._sa_handler;
5052 old_act->sa_flags = oact.sa_flags;
5053 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5054 old_act->sa_mask.sig[1] = 0;
5055 old_act->sa_mask.sig[2] = 0;
5056 old_act->sa_mask.sig[3] = 0;
5057 unlock_user_struct(old_act, arg3, 1);
5058 }
5059 #else
5060 struct target_old_sigaction *old_act;
5061 struct target_sigaction act, oact, *pact;
5062 if (arg2) {
5063 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5064 goto efault;
5065 act._sa_handler = old_act->_sa_handler;
5066 target_siginitset(&act.sa_mask, old_act->sa_mask);
5067 act.sa_flags = old_act->sa_flags;
5068 act.sa_restorer = old_act->sa_restorer;
5069 unlock_user_struct(old_act, arg2, 0);
5070 pact = &act;
5071 } else {
5072 pact = NULL;
5073 }
5074 ret = get_errno(do_sigaction(arg1, pact, &oact));
5075 if (!is_error(ret) && arg3) {
5076 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5077 goto efault;
5078 old_act->_sa_handler = oact._sa_handler;
5079 old_act->sa_mask = oact.sa_mask.sig[0];
5080 old_act->sa_flags = oact.sa_flags;
5081 old_act->sa_restorer = oact.sa_restorer;
5082 unlock_user_struct(old_act, arg3, 1);
5083 }
5084 #endif
5085 }
5086 break;
5087 #endif
5088 case TARGET_NR_rt_sigaction:
5089 {
5090 #if defined(TARGET_ALPHA)
5091 struct target_sigaction act, oact, *pact = 0;
5092 struct target_rt_sigaction *rt_act;
5093 /* ??? arg4 == sizeof(sigset_t). */
5094 if (arg2) {
5095 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5096 goto efault;
5097 act._sa_handler = rt_act->_sa_handler;
5098 act.sa_mask = rt_act->sa_mask;
5099 act.sa_flags = rt_act->sa_flags;
5100 act.sa_restorer = arg5;
5101 unlock_user_struct(rt_act, arg2, 0);
5102 pact = &act;
5103 }
5104 ret = get_errno(do_sigaction(arg1, pact, &oact));
5105 if (!is_error(ret) && arg3) {
5106 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5107 goto efault;
5108 rt_act->_sa_handler = oact._sa_handler;
5109 rt_act->sa_mask = oact.sa_mask;
5110 rt_act->sa_flags = oact.sa_flags;
5111 unlock_user_struct(rt_act, arg3, 1);
5112 }
5113 #else
5114 struct target_sigaction *act;
5115 struct target_sigaction *oact;
5116
5117 if (arg2) {
5118 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5119 goto efault;
5120 } else
5121 act = NULL;
5122 if (arg3) {
5123 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5124 ret = -TARGET_EFAULT;
5125 goto rt_sigaction_fail;
5126 }
5127 } else
5128 oact = NULL;
5129 ret = get_errno(do_sigaction(arg1, act, oact));
5130 rt_sigaction_fail:
5131 if (act)
5132 unlock_user_struct(act, arg2, 0);
5133 if (oact)
5134 unlock_user_struct(oact, arg3, 1);
5135 #endif
5136 }
5137 break;
5138 #ifdef TARGET_NR_sgetmask /* not on alpha */
5139 case TARGET_NR_sgetmask:
5140 {
5141 sigset_t cur_set;
5142 abi_ulong target_set;
5143 sigprocmask(0, NULL, &cur_set);
5144 host_to_target_old_sigset(&target_set, &cur_set);
5145 ret = target_set;
5146 }
5147 break;
5148 #endif
5149 #ifdef TARGET_NR_ssetmask /* not on alpha */
5150 case TARGET_NR_ssetmask:
5151 {
5152 sigset_t set, oset, cur_set;
5153 abi_ulong target_set = arg1;
5154 sigprocmask(0, NULL, &cur_set);
5155 target_to_host_old_sigset(&set, &target_set);
5156 sigorset(&set, &set, &cur_set);
5157 sigprocmask(SIG_SETMASK, &set, &oset);
5158 host_to_target_old_sigset(&target_set, &oset);
5159 ret = target_set;
5160 }
5161 break;
5162 #endif
5163 #ifdef TARGET_NR_sigprocmask
5164 case TARGET_NR_sigprocmask:
5165 {
5166 #if defined(TARGET_ALPHA)
5167 sigset_t set, oldset;
5168 abi_ulong mask;
5169 int how;
5170
5171 switch (arg1) {
5172 case TARGET_SIG_BLOCK:
5173 how = SIG_BLOCK;
5174 break;
5175 case TARGET_SIG_UNBLOCK:
5176 how = SIG_UNBLOCK;
5177 break;
5178 case TARGET_SIG_SETMASK:
5179 how = SIG_SETMASK;
5180 break;
5181 default:
5182 ret = -TARGET_EINVAL;
5183 goto fail;
5184 }
5185 mask = arg2;
5186 target_to_host_old_sigset(&set, &mask);
5187
5188 ret = get_errno(sigprocmask(how, &set, &oldset));
5189
5190 if (!is_error(ret)) {
5191 host_to_target_old_sigset(&mask, &oldset);
5192 ret = mask;
5193 ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */
5194 }
5195 #else
5196 sigset_t set, oldset, *set_ptr;
5197 int how;
5198
5199 if (arg2) {
5200 switch (arg1) {
5201 case TARGET_SIG_BLOCK:
5202 how = SIG_BLOCK;
5203 break;
5204 case TARGET_SIG_UNBLOCK:
5205 how = SIG_UNBLOCK;
5206 break;
5207 case TARGET_SIG_SETMASK:
5208 how = SIG_SETMASK;
5209 break;
5210 default:
5211 ret = -TARGET_EINVAL;
5212 goto fail;
5213 }
5214 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5215 goto efault;
5216 target_to_host_old_sigset(&set, p);
5217 unlock_user(p, arg2, 0);
5218 set_ptr = &set;
5219 } else {
5220 how = 0;
5221 set_ptr = NULL;
5222 }
5223 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5224 if (!is_error(ret) && arg3) {
5225 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5226 goto efault;
5227 host_to_target_old_sigset(p, &oldset);
5228 unlock_user(p, arg3, sizeof(target_sigset_t));
5229 }
5230 #endif
5231 }
5232 break;
5233 #endif
5234 case TARGET_NR_rt_sigprocmask:
5235 {
5236 int how = arg1;
5237 sigset_t set, oldset, *set_ptr;
5238
5239 if (arg2) {
5240 switch(how) {
5241 case TARGET_SIG_BLOCK:
5242 how = SIG_BLOCK;
5243 break;
5244 case TARGET_SIG_UNBLOCK:
5245 how = SIG_UNBLOCK;
5246 break;
5247 case TARGET_SIG_SETMASK:
5248 how = SIG_SETMASK;
5249 break;
5250 default:
5251 ret = -TARGET_EINVAL;
5252 goto fail;
5253 }
5254 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5255 goto efault;
5256 target_to_host_sigset(&set, p);
5257 unlock_user(p, arg2, 0);
5258 set_ptr = &set;
5259 } else {
5260 how = 0;
5261 set_ptr = NULL;
5262 }
5263 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5264 if (!is_error(ret) && arg3) {
5265 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5266 goto efault;
5267 host_to_target_sigset(p, &oldset);
5268 unlock_user(p, arg3, sizeof(target_sigset_t));
5269 }
5270 }
5271 break;
5272 #ifdef TARGET_NR_sigpending
5273 case TARGET_NR_sigpending:
5274 {
5275 sigset_t set;
5276 ret = get_errno(sigpending(&set));
5277 if (!is_error(ret)) {
5278 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5279 goto efault;
5280 host_to_target_old_sigset(p, &set);
5281 unlock_user(p, arg1, sizeof(target_sigset_t));
5282 }
5283 }
5284 break;
5285 #endif
5286 case TARGET_NR_rt_sigpending:
5287 {
5288 sigset_t set;
5289 ret = get_errno(sigpending(&set));
5290 if (!is_error(ret)) {
5291 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5292 goto efault;
5293 host_to_target_sigset(p, &set);
5294 unlock_user(p, arg1, sizeof(target_sigset_t));
5295 }
5296 }
5297 break;
5298 #ifdef TARGET_NR_sigsuspend
5299 case TARGET_NR_sigsuspend:
5300 {
5301 sigset_t set;
5302 #if defined(TARGET_ALPHA)
5303 abi_ulong mask = arg1;
5304 target_to_host_old_sigset(&set, &mask);
5305 #else
5306 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5307 goto efault;
5308 target_to_host_old_sigset(&set, p);
5309 unlock_user(p, arg1, 0);
5310 #endif
5311 ret = get_errno(sigsuspend(&set));
5312 }
5313 break;
5314 #endif
5315 case TARGET_NR_rt_sigsuspend:
5316 {
5317 sigset_t set;
5318 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5319 goto efault;
5320 target_to_host_sigset(&set, p);
5321 unlock_user(p, arg1, 0);
5322 ret = get_errno(sigsuspend(&set));
5323 }
5324 break;
5325 case TARGET_NR_rt_sigtimedwait:
5326 {
5327 sigset_t set;
5328 struct timespec uts, *puts;
5329 siginfo_t uinfo;
5330
5331 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5332 goto efault;
5333 target_to_host_sigset(&set, p);
5334 unlock_user(p, arg1, 0);
5335 if (arg3) {
5336 puts = &uts;
5337 target_to_host_timespec(puts, arg3);
5338 } else {
5339 puts = NULL;
5340 }
5341 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5342 if (!is_error(ret) && arg2) {
5343 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5344 goto efault;
5345 host_to_target_siginfo(p, &uinfo);
5346 unlock_user(p, arg2, sizeof(target_siginfo_t));
5347 }
5348 }
5349 break;
5350 case TARGET_NR_rt_sigqueueinfo:
5351 {
5352 siginfo_t uinfo;
5353 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5354 goto efault;
5355 target_to_host_siginfo(&uinfo, p);
5356 unlock_user(p, arg1, 0);
5357 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5358 }
5359 break;
5360 #ifdef TARGET_NR_sigreturn
5361 case TARGET_NR_sigreturn:
5362 /* NOTE: ret is eax, so not transcoding must be done */
5363 ret = do_sigreturn(cpu_env);
5364 break;
5365 #endif
5366 case TARGET_NR_rt_sigreturn:
5367 /* NOTE: ret is eax, so not transcoding must be done */
5368 ret = do_rt_sigreturn(cpu_env);
5369 break;
5370 case TARGET_NR_sethostname:
5371 if (!(p = lock_user_string(arg1)))
5372 goto efault;
5373 ret = get_errno(sethostname(p, arg2));
5374 unlock_user(p, arg1, 0);
5375 break;
5376 case TARGET_NR_setrlimit:
5377 {
5378 int resource = arg1;
5379 struct target_rlimit *target_rlim;
5380 struct rlimit rlim;
5381 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5382 goto efault;
5383 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
5384 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
5385 unlock_user_struct(target_rlim, arg2, 0);
5386 ret = get_errno(setrlimit(resource, &rlim));
5387 }
5388 break;
5389 case TARGET_NR_getrlimit:
5390 {
5391 int resource = arg1;
5392 struct target_rlimit *target_rlim;
5393 struct rlimit rlim;
5394
5395 ret = get_errno(getrlimit(resource, &rlim));
5396 if (!is_error(ret)) {
5397 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5398 goto efault;
5399 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
5400 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
5401 unlock_user_struct(target_rlim, arg2, 1);
5402 }
5403 }
5404 break;
5405 case TARGET_NR_getrusage:
5406 {
5407 struct rusage rusage;
5408 ret = get_errno(getrusage(arg1, &rusage));
5409 if (!is_error(ret)) {
5410 host_to_target_rusage(arg2, &rusage);
5411 }
5412 }
5413 break;
5414 case TARGET_NR_gettimeofday:
5415 {
5416 struct timeval tv;
5417 ret = get_errno(gettimeofday(&tv, NULL));
5418 if (!is_error(ret)) {
5419 if (copy_to_user_timeval(arg1, &tv))
5420 goto efault;
5421 }
5422 }
5423 break;
5424 case TARGET_NR_settimeofday:
5425 {
5426 struct timeval tv;
5427 if (copy_from_user_timeval(&tv, arg1))
5428 goto efault;
5429 ret = get_errno(settimeofday(&tv, NULL));
5430 }
5431 break;
5432 #ifdef TARGET_NR_select
5433 case TARGET_NR_select:
5434 {
5435 struct target_sel_arg_struct *sel;
5436 abi_ulong inp, outp, exp, tvp;
5437 long nsel;
5438
5439 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5440 goto efault;
5441 nsel = tswapl(sel->n);
5442 inp = tswapl(sel->inp);
5443 outp = tswapl(sel->outp);
5444 exp = tswapl(sel->exp);
5445 tvp = tswapl(sel->tvp);
5446 unlock_user_struct(sel, arg1, 0);
5447 ret = do_select(nsel, inp, outp, exp, tvp);
5448 }
5449 break;
5450 #endif
5451 #ifdef TARGET_NR_pselect6
5452 case TARGET_NR_pselect6:
5453 goto unimplemented_nowarn;
5454 #endif
5455 case TARGET_NR_symlink:
5456 {
5457 void *p2;
5458 p = lock_user_string(arg1);
5459 p2 = lock_user_string(arg2);
5460 if (!p || !p2)
5461 ret = -TARGET_EFAULT;
5462 else
5463 ret = get_errno(symlink(p, p2));
5464 unlock_user(p2, arg2, 0);
5465 unlock_user(p, arg1, 0);
5466 }
5467 break;
5468 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5469 case TARGET_NR_symlinkat:
5470 {
5471 void *p2;
5472 p = lock_user_string(arg1);
5473 p2 = lock_user_string(arg3);
5474 if (!p || !p2)
5475 ret = -TARGET_EFAULT;
5476 else
5477 ret = get_errno(sys_symlinkat(p, arg2, p2));
5478 unlock_user(p2, arg3, 0);
5479 unlock_user(p, arg1, 0);
5480 }
5481 break;
5482 #endif
5483 #ifdef TARGET_NR_oldlstat
5484 case TARGET_NR_oldlstat:
5485 goto unimplemented;
5486 #endif
5487 case TARGET_NR_readlink:
5488 {
5489 void *p2, *temp;
5490 p = lock_user_string(arg1);
5491 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5492 if (!p || !p2)
5493 ret = -TARGET_EFAULT;
5494 else {
5495 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5496 char real[PATH_MAX];
5497 temp = realpath(exec_path,real);
5498 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5499 snprintf((char *)p2, arg3, "%s", real);
5500 }
5501 else
5502 ret = get_errno(readlink(path(p), p2, arg3));
5503 }
5504 unlock_user(p2, arg2, ret);
5505 unlock_user(p, arg1, 0);
5506 }
5507 break;
5508 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5509 case TARGET_NR_readlinkat:
5510 {
5511 void *p2;
5512 p = lock_user_string(arg2);
5513 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5514 if (!p || !p2)
5515 ret = -TARGET_EFAULT;
5516 else
5517 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5518 unlock_user(p2, arg3, ret);
5519 unlock_user(p, arg2, 0);
5520 }
5521 break;
5522 #endif
5523 #ifdef TARGET_NR_uselib
5524 case TARGET_NR_uselib:
5525 goto unimplemented;
5526 #endif
5527 #ifdef TARGET_NR_swapon
5528 case TARGET_NR_swapon:
5529 if (!(p = lock_user_string(arg1)))
5530 goto efault;
5531 ret = get_errno(swapon(p, arg2));
5532 unlock_user(p, arg1, 0);
5533 break;
5534 #endif
5535 case TARGET_NR_reboot:
5536 goto unimplemented;
5537 #ifdef TARGET_NR_readdir
5538 case TARGET_NR_readdir:
5539 goto unimplemented;
5540 #endif
5541 #ifdef TARGET_NR_mmap
5542 case TARGET_NR_mmap:
5543 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5544 {
5545 abi_ulong *v;
5546 abi_ulong v1, v2, v3, v4, v5, v6;
5547 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5548 goto efault;
5549 v1 = tswapl(v[0]);
5550 v2 = tswapl(v[1]);
5551 v3 = tswapl(v[2]);
5552 v4 = tswapl(v[3]);
5553 v5 = tswapl(v[4]);
5554 v6 = tswapl(v[5]);
5555 unlock_user(v, arg1, 0);
5556 ret = get_errno(target_mmap(v1, v2, v3,
5557 target_to_host_bitmask(v4, mmap_flags_tbl),
5558 v5, v6));
5559 }
5560 #else
5561 ret = get_errno(target_mmap(arg1, arg2, arg3,
5562 target_to_host_bitmask(arg4, mmap_flags_tbl),
5563 arg5,
5564 arg6));
5565 #endif
5566 break;
5567 #endif
5568 #ifdef TARGET_NR_mmap2
5569 case TARGET_NR_mmap2:
5570 #ifndef MMAP_SHIFT
5571 #define MMAP_SHIFT 12
5572 #endif
5573 ret = get_errno(target_mmap(arg1, arg2, arg3,
5574 target_to_host_bitmask(arg4, mmap_flags_tbl),
5575 arg5,
5576 arg6 << MMAP_SHIFT));
5577 break;
5578 #endif
5579 case TARGET_NR_munmap:
5580 ret = get_errno(target_munmap(arg1, arg2));
5581 break;
5582 case TARGET_NR_mprotect:
5583 {
5584 TaskState *ts = ((CPUState *)cpu_env)->opaque;
5585 /* Special hack to detect libc making the stack executable. */
5586 if ((arg3 & PROT_GROWSDOWN)
5587 && arg1 >= ts->info->stack_limit
5588 && arg1 <= ts->info->start_stack) {
5589 arg3 &= ~PROT_GROWSDOWN;
5590 arg2 = arg2 + arg1 - ts->info->stack_limit;
5591 arg1 = ts->info->stack_limit;
5592 }
5593 }
5594 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5595 break;
5596 #ifdef TARGET_NR_mremap
5597 case TARGET_NR_mremap:
5598 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5599 break;
5600 #endif
5601 /* ??? msync/mlock/munlock are broken for softmmu. */
5602 #ifdef TARGET_NR_msync
5603 case TARGET_NR_msync:
5604 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5605 break;
5606 #endif
5607 #ifdef TARGET_NR_mlock
5608 case TARGET_NR_mlock:
5609 ret = get_errno(mlock(g2h(arg1), arg2));
5610 break;
5611 #endif
5612 #ifdef TARGET_NR_munlock
5613 case TARGET_NR_munlock:
5614 ret = get_errno(munlock(g2h(arg1), arg2));
5615 break;
5616 #endif
5617 #ifdef TARGET_NR_mlockall
5618 case TARGET_NR_mlockall:
5619 ret = get_errno(mlockall(arg1));
5620 break;
5621 #endif
5622 #ifdef TARGET_NR_munlockall
5623 case TARGET_NR_munlockall:
5624 ret = get_errno(munlockall());
5625 break;
5626 #endif
5627 case TARGET_NR_truncate:
5628 if (!(p = lock_user_string(arg1)))
5629 goto efault;
5630 ret = get_errno(truncate(p, arg2));
5631 unlock_user(p, arg1, 0);
5632 break;
5633 case TARGET_NR_ftruncate:
5634 ret = get_errno(ftruncate(arg1, arg2));
5635 break;
5636 case TARGET_NR_fchmod:
5637 ret = get_errno(fchmod(arg1, arg2));
5638 break;
5639 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5640 case TARGET_NR_fchmodat:
5641 if (!(p = lock_user_string(arg2)))
5642 goto efault;
5643 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5644 unlock_user(p, arg2, 0);
5645 break;
5646 #endif
5647 case TARGET_NR_getpriority:
5648 /* libc does special remapping of the return value of
5649 * sys_getpriority() so it's just easiest to call
5650 * sys_getpriority() directly rather than through libc. */
5651 ret = get_errno(sys_getpriority(arg1, arg2));
5652 break;
5653 case TARGET_NR_setpriority:
5654 ret = get_errno(setpriority(arg1, arg2, arg3));
5655 break;
5656 #ifdef TARGET_NR_profil
5657 case TARGET_NR_profil:
5658 goto unimplemented;
5659 #endif
5660 case TARGET_NR_statfs:
5661 if (!(p = lock_user_string(arg1)))
5662 goto efault;
5663 ret = get_errno(statfs(path(p), &stfs));
5664 unlock_user(p, arg1, 0);
5665 convert_statfs:
5666 if (!is_error(ret)) {
5667 struct target_statfs *target_stfs;
5668
5669 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5670 goto efault;
5671 __put_user(stfs.f_type, &target_stfs->f_type);
5672 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5673 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5674 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5675 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5676 __put_user(stfs.f_files, &target_stfs->f_files);
5677 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5678 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5679 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5680 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5681 unlock_user_struct(target_stfs, arg2, 1);
5682 }
5683 break;
5684 case TARGET_NR_fstatfs:
5685 ret = get_errno(fstatfs(arg1, &stfs));
5686 goto convert_statfs;
5687 #ifdef TARGET_NR_statfs64
5688 case TARGET_NR_statfs64:
5689 if (!(p = lock_user_string(arg1)))
5690 goto efault;
5691 ret = get_errno(statfs(path(p), &stfs));
5692 unlock_user(p, arg1, 0);
5693 convert_statfs64:
5694 if (!is_error(ret)) {
5695 struct target_statfs64 *target_stfs;
5696
5697 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5698 goto efault;
5699 __put_user(stfs.f_type, &target_stfs->f_type);
5700 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5701 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5702 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5703 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5704 __put_user(stfs.f_files, &target_stfs->f_files);
5705 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5706 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5707 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5708 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5709 unlock_user_struct(target_stfs, arg3, 1);
5710 }
5711 break;
5712 case TARGET_NR_fstatfs64:
5713 ret = get_errno(fstatfs(arg1, &stfs));
5714 goto convert_statfs64;
5715 #endif
5716 #ifdef TARGET_NR_ioperm
5717 case TARGET_NR_ioperm:
5718 goto unimplemented;
5719 #endif
5720 #ifdef TARGET_NR_socketcall
5721 case TARGET_NR_socketcall:
5722 ret = do_socketcall(arg1, arg2);
5723 break;
5724 #endif
5725 #ifdef TARGET_NR_accept
5726 case TARGET_NR_accept:
5727 ret = do_accept(arg1, arg2, arg3);
5728 break;
5729 #endif
5730 #ifdef TARGET_NR_bind
5731 case TARGET_NR_bind:
5732 ret = do_bind(arg1, arg2, arg3);
5733 break;
5734 #endif
5735 #ifdef TARGET_NR_connect
5736 case TARGET_NR_connect:
5737 ret = do_connect(arg1, arg2, arg3);
5738 break;
5739 #endif
5740 #ifdef TARGET_NR_getpeername
5741 case TARGET_NR_getpeername:
5742 ret = do_getpeername(arg1, arg2, arg3);
5743 break;
5744 #endif
5745 #ifdef TARGET_NR_getsockname
5746 case TARGET_NR_getsockname:
5747 ret = do_getsockname(arg1, arg2, arg3);
5748 break;
5749 #endif
5750 #ifdef TARGET_NR_getsockopt
5751 case TARGET_NR_getsockopt:
5752 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5753 break;
5754 #endif
5755 #ifdef TARGET_NR_listen
5756 case TARGET_NR_listen:
5757 ret = get_errno(listen(arg1, arg2));
5758 break;
5759 #endif
5760 #ifdef TARGET_NR_recv
5761 case TARGET_NR_recv:
5762 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5763 break;
5764 #endif
5765 #ifdef TARGET_NR_recvfrom
5766 case TARGET_NR_recvfrom:
5767 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5768 break;
5769 #endif
5770 #ifdef TARGET_NR_recvmsg
5771 case TARGET_NR_recvmsg:
5772 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5773 break;
5774 #endif
5775 #ifdef TARGET_NR_send
5776 case TARGET_NR_send:
5777 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5778 break;
5779 #endif
5780 #ifdef TARGET_NR_sendmsg
5781 case TARGET_NR_sendmsg:
5782 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5783 break;
5784 #endif
5785 #ifdef TARGET_NR_sendto
5786 case TARGET_NR_sendto:
5787 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5788 break;
5789 #endif
5790 #ifdef TARGET_NR_shutdown
5791 case TARGET_NR_shutdown:
5792 ret = get_errno(shutdown(arg1, arg2));
5793 break;
5794 #endif
5795 #ifdef TARGET_NR_socket
5796 case TARGET_NR_socket:
5797 ret = do_socket(arg1, arg2, arg3);
5798 break;
5799 #endif
5800 #ifdef TARGET_NR_socketpair
5801 case TARGET_NR_socketpair:
5802 ret = do_socketpair(arg1, arg2, arg3, arg4);
5803 break;
5804 #endif
5805 #ifdef TARGET_NR_setsockopt
5806 case TARGET_NR_setsockopt:
5807 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5808 break;
5809 #endif
5810
5811 case TARGET_NR_syslog:
5812 if (!(p = lock_user_string(arg2)))
5813 goto efault;
5814 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5815 unlock_user(p, arg2, 0);
5816 break;
5817
5818 case TARGET_NR_setitimer:
5819 {
5820 struct itimerval value, ovalue, *pvalue;
5821
5822 if (arg2) {
5823 pvalue = &value;
5824 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5825 || copy_from_user_timeval(&pvalue->it_value,
5826 arg2 + sizeof(struct target_timeval)))
5827 goto efault;
5828 } else {
5829 pvalue = NULL;
5830 }
5831 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5832 if (!is_error(ret) && arg3) {
5833 if (copy_to_user_timeval(arg3,
5834 &ovalue.it_interval)
5835 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5836 &ovalue.it_value))
5837 goto efault;
5838 }
5839 }
5840 break;
5841 case TARGET_NR_getitimer:
5842 {
5843 struct itimerval value;
5844
5845 ret = get_errno(getitimer(arg1, &value));
5846 if (!is_error(ret) && arg2) {
5847 if (copy_to_user_timeval(arg2,
5848 &value.it_interval)
5849 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5850 &value.it_value))
5851 goto efault;
5852 }
5853 }
5854 break;
5855 case TARGET_NR_stat:
5856 if (!(p = lock_user_string(arg1)))
5857 goto efault;
5858 ret = get_errno(stat(path(p), &st));
5859 unlock_user(p, arg1, 0);
5860 goto do_stat;
5861 case TARGET_NR_lstat:
5862 if (!(p = lock_user_string(arg1)))
5863 goto efault;
5864 ret = get_errno(lstat(path(p), &st));
5865 unlock_user(p, arg1, 0);
5866 goto do_stat;
5867 case TARGET_NR_fstat:
5868 {
5869 ret = get_errno(fstat(arg1, &st));
5870 do_stat:
5871 if (!is_error(ret)) {
5872 struct target_stat *target_st;
5873
5874 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5875 goto efault;
5876 memset(target_st, 0, sizeof(*target_st));
5877 __put_user(st.st_dev, &target_st->st_dev);
5878 __put_user(st.st_ino, &target_st->st_ino);
5879 __put_user(st.st_mode, &target_st->st_mode);
5880 __put_user(st.st_uid, &target_st->st_uid);
5881 __put_user(st.st_gid, &target_st->st_gid);
5882 __put_user(st.st_nlink, &target_st->st_nlink);
5883 __put_user(st.st_rdev, &target_st->st_rdev);
5884 __put_user(st.st_size, &target_st->st_size);
5885 __put_user(st.st_blksize, &target_st->st_blksize);
5886 __put_user(st.st_blocks, &target_st->st_blocks);
5887 __put_user(st.st_atime, &target_st->target_st_atime);
5888 __put_user(st.st_mtime, &target_st->target_st_mtime);
5889 __put_user(st.st_ctime, &target_st->target_st_ctime);
5890 unlock_user_struct(target_st, arg2, 1);
5891 }
5892 }
5893 break;
5894 #ifdef TARGET_NR_olduname
5895 case TARGET_NR_olduname:
5896 goto unimplemented;
5897 #endif
5898 #ifdef TARGET_NR_iopl
5899 case TARGET_NR_iopl:
5900 goto unimplemented;
5901 #endif
5902 case TARGET_NR_vhangup:
5903 ret = get_errno(vhangup());
5904 break;
5905 #ifdef TARGET_NR_idle
5906 case TARGET_NR_idle:
5907 goto unimplemented;
5908 #endif
5909 #ifdef TARGET_NR_syscall
5910 case TARGET_NR_syscall:
5911 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5912 break;
5913 #endif
5914 case TARGET_NR_wait4:
5915 {
5916 int status;
5917 abi_long status_ptr = arg2;
5918 struct rusage rusage, *rusage_ptr;
5919 abi_ulong target_rusage = arg4;
5920 if (target_rusage)
5921 rusage_ptr = &rusage;
5922 else
5923 rusage_ptr = NULL;
5924 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5925 if (!is_error(ret)) {
5926 if (status_ptr) {
5927 status = host_to_target_waitstatus(status);
5928 if (put_user_s32(status, status_ptr))
5929 goto efault;
5930 }
5931 if (target_rusage)
5932 host_to_target_rusage(target_rusage, &rusage);
5933 }
5934 }
5935 break;
5936 #ifdef TARGET_NR_swapoff
5937 case TARGET_NR_swapoff:
5938 if (!(p = lock_user_string(arg1)))
5939 goto efault;
5940 ret = get_errno(swapoff(p));
5941 unlock_user(p, arg1, 0);
5942 break;
5943 #endif
5944 case TARGET_NR_sysinfo:
5945 {
5946 struct target_sysinfo *target_value;
5947 struct sysinfo value;
5948 ret = get_errno(sysinfo(&value));
5949 if (!is_error(ret) && arg1)
5950 {
5951 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5952 goto efault;
5953 __put_user(value.uptime, &target_value->uptime);
5954 __put_user(value.loads[0], &target_value->loads[0]);
5955 __put_user(value.loads[1], &target_value->loads[1]);
5956 __put_user(value.loads[2], &target_value->loads[2]);
5957 __put_user(value.totalram, &target_value->totalram);
5958 __put_user(value.freeram, &target_value->freeram);
5959 __put_user(value.sharedram, &target_value->sharedram);
5960 __put_user(value.bufferram, &target_value->bufferram);
5961 __put_user(value.totalswap, &target_value->totalswap);
5962 __put_user(value.freeswap, &target_value->freeswap);
5963 __put_user(value.procs, &target_value->procs);
5964 __put_user(value.totalhigh, &target_value->totalhigh);
5965 __put_user(value.freehigh, &target_value->freehigh);
5966 __put_user(value.mem_unit, &target_value->mem_unit);
5967 unlock_user_struct(target_value, arg1, 1);
5968 }
5969 }
5970 break;
5971 #ifdef TARGET_NR_ipc
5972 case TARGET_NR_ipc:
5973 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5974 break;
5975 #endif
5976 #ifdef TARGET_NR_semget
5977 case TARGET_NR_semget:
5978 ret = get_errno(semget(arg1, arg2, arg3));
5979 break;
5980 #endif
5981 #ifdef TARGET_NR_semop
5982 case TARGET_NR_semop:
5983 ret = get_errno(do_semop(arg1, arg2, arg3));
5984 break;
5985 #endif
5986 #ifdef TARGET_NR_semctl
5987 case TARGET_NR_semctl:
5988 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5989 break;
5990 #endif
5991 #ifdef TARGET_NR_msgctl
5992 case TARGET_NR_msgctl:
5993 ret = do_msgctl(arg1, arg2, arg3);
5994 break;
5995 #endif
5996 #ifdef TARGET_NR_msgget
5997 case TARGET_NR_msgget:
5998 ret = get_errno(msgget(arg1, arg2));
5999 break;
6000 #endif
6001 #ifdef TARGET_NR_msgrcv
6002 case TARGET_NR_msgrcv:
6003 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
6004 break;
6005 #endif
6006 #ifdef TARGET_NR_msgsnd
6007 case TARGET_NR_msgsnd:
6008 ret = do_msgsnd(arg1, arg2, arg3, arg4);
6009 break;
6010 #endif
6011 #ifdef TARGET_NR_shmget
6012 case TARGET_NR_shmget:
6013 ret = get_errno(shmget(arg1, arg2, arg3));
6014 break;
6015 #endif
6016 #ifdef TARGET_NR_shmctl
6017 case TARGET_NR_shmctl:
6018 ret = do_shmctl(arg1, arg2, arg3);
6019 break;
6020 #endif
6021 #ifdef TARGET_NR_shmat
6022 case TARGET_NR_shmat:
6023 ret = do_shmat(arg1, arg2, arg3);
6024 break;
6025 #endif
6026 #ifdef TARGET_NR_shmdt
6027 case TARGET_NR_shmdt:
6028 ret = do_shmdt(arg1);
6029 break;
6030 #endif
6031 case TARGET_NR_fsync:
6032 ret = get_errno(fsync(arg1));
6033 break;
6034 case TARGET_NR_clone:
6035 #if defined(TARGET_SH4) || defined(TARGET_ALPHA)
6036 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6037 #elif defined(TARGET_CRIS)
6038 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
6039 #else
6040 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6041 #endif
6042 break;
6043 #ifdef __NR_exit_group
6044 /* new thread calls */
6045 case TARGET_NR_exit_group:
6046 #ifdef TARGET_GPROF
6047 _mcleanup();
6048 #endif
6049 gdb_exit(cpu_env, arg1);
6050 ret = get_errno(exit_group(arg1));
6051 break;
6052 #endif
6053 case TARGET_NR_setdomainname:
6054 if (!(p = lock_user_string(arg1)))
6055 goto efault;
6056 ret = get_errno(setdomainname(p, arg2));
6057 unlock_user(p, arg1, 0);
6058 break;
6059 case TARGET_NR_uname:
6060 /* no need to transcode because we use the linux syscall */
6061 {
6062 struct new_utsname * buf;
6063
6064 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6065 goto efault;
6066 ret = get_errno(sys_uname(buf));
6067 if (!is_error(ret)) {
6068 /* Overrite the native machine name with whatever is being
6069 emulated. */
6070 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6071 /* Allow the user to override the reported release. */
6072 if (qemu_uname_release && *qemu_uname_release)
6073 strcpy (buf->release, qemu_uname_release);
6074 }
6075 unlock_user_struct(buf, arg1, 1);
6076 }
6077 break;
6078 #ifdef TARGET_I386
6079 case TARGET_NR_modify_ldt:
6080 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6081 break;
6082 #if !defined(TARGET_X86_64)
6083 case TARGET_NR_vm86old:
6084 goto unimplemented;
6085 case TARGET_NR_vm86:
6086 ret = do_vm86(cpu_env, arg1, arg2);
6087 break;
6088 #endif
6089 #endif
6090 case TARGET_NR_adjtimex:
6091 goto unimplemented;
6092 #ifdef TARGET_NR_create_module
6093 case TARGET_NR_create_module:
6094 #endif
6095 case TARGET_NR_init_module:
6096 case TARGET_NR_delete_module:
6097 #ifdef TARGET_NR_get_kernel_syms
6098 case TARGET_NR_get_kernel_syms:
6099 #endif
6100 goto unimplemented;
6101 case TARGET_NR_quotactl:
6102 goto unimplemented;
6103 case TARGET_NR_getpgid:
6104 ret = get_errno(getpgid(arg1));
6105 break;
6106 case TARGET_NR_fchdir:
6107 ret = get_errno(fchdir(arg1));
6108 break;
6109 #ifdef TARGET_NR_bdflush /* not on x86_64 */
6110 case TARGET_NR_bdflush:
6111 goto unimplemented;
6112 #endif
6113 #ifdef TARGET_NR_sysfs
6114 case TARGET_NR_sysfs:
6115 goto unimplemented;
6116 #endif
6117 case TARGET_NR_personality:
6118 ret = get_errno(personality(arg1));
6119 break;
6120 #ifdef TARGET_NR_afs_syscall
6121 case TARGET_NR_afs_syscall:
6122 goto unimplemented;
6123 #endif
6124 #ifdef TARGET_NR__llseek /* Not on alpha */
6125 case TARGET_NR__llseek:
6126 {
6127 #if !defined(__NR_llseek)
6128 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
6129 if (put_user_s64(ret, arg4))
6130 goto efault;
6131 #else
6132 int64_t res;
6133 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
6134 if (put_user_s64(res, arg4))
6135 goto efault;
6136 #endif
6137 }
6138 break;
6139 #endif
6140 case TARGET_NR_getdents:
6141 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
6142 {
6143 struct target_dirent *target_dirp;
6144 struct linux_dirent *dirp;
6145 abi_long count = arg3;
6146
6147 dirp = malloc(count);
6148 if (!dirp) {
6149 ret = -TARGET_ENOMEM;
6150 goto fail;
6151 }
6152
6153 ret = get_errno(sys_getdents(arg1, dirp, count));
6154 if (!is_error(ret)) {
6155 struct linux_dirent *de;
6156 struct target_dirent *tde;
6157 int len = ret;
6158 int reclen, treclen;
6159 int count1, tnamelen;
6160
6161 count1 = 0;
6162 de = dirp;
6163 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6164 goto efault;
6165 tde = target_dirp;
6166 while (len > 0) {
6167 reclen = de->d_reclen;
6168 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
6169 tde->d_reclen = tswap16(treclen);
6170 tde->d_ino = tswapl(de->d_ino);
6171 tde->d_off = tswapl(de->d_off);
6172 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
6173 if (tnamelen > 256)
6174 tnamelen = 256;
6175 /* XXX: may not be correct */
6176 pstrcpy(tde->d_name, tnamelen, de->d_name);
6177 de = (struct linux_dirent *)((char *)de + reclen);
6178 len -= reclen;
6179 tde = (struct target_dirent *)((char *)tde + treclen);
6180 count1 += treclen;
6181 }
6182 ret = count1;
6183 unlock_user(target_dirp, arg2, ret);
6184 }
6185 free(dirp);
6186 }
6187 #else
6188 {
6189 struct linux_dirent *dirp;
6190 abi_long count = arg3;
6191
6192 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6193 goto efault;
6194 ret = get_errno(sys_getdents(arg1, dirp, count));
6195 if (!is_error(ret)) {
6196 struct linux_dirent *de;
6197 int len = ret;
6198 int reclen;
6199 de = dirp;
6200 while (len > 0) {
6201 reclen = de->d_reclen;
6202 if (reclen > len)
6203 break;
6204 de->d_reclen = tswap16(reclen);
6205 tswapls(&de->d_ino);
6206 tswapls(&de->d_off);
6207 de = (struct linux_dirent *)((char *)de + reclen);
6208 len -= reclen;
6209 }
6210 }
6211 unlock_user(dirp, arg2, ret);
6212 }
6213 #endif
6214 break;
6215 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
6216 case TARGET_NR_getdents64:
6217 {
6218 struct linux_dirent64 *dirp;
6219 abi_long count = arg3;
6220 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6221 goto efault;
6222 ret = get_errno(sys_getdents64(arg1, dirp, count));
6223 if (!is_error(ret)) {
6224 struct linux_dirent64 *de;
6225 int len = ret;
6226 int reclen;
6227 de = dirp;
6228 while (len > 0) {
6229 reclen = de->d_reclen;
6230 if (reclen > len)
6231 break;
6232 de->d_reclen = tswap16(reclen);
6233 tswap64s((uint64_t *)&de->d_ino);
6234 tswap64s((uint64_t *)&de->d_off);
6235 de = (struct linux_dirent64 *)((char *)de + reclen);
6236 len -= reclen;
6237 }
6238 }
6239 unlock_user(dirp, arg2, ret);
6240 }
6241 break;
6242 #endif /* TARGET_NR_getdents64 */
6243 #ifdef TARGET_NR__newselect
6244 case TARGET_NR__newselect:
6245 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6246 break;
6247 #endif
6248 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
6249 # ifdef TARGET_NR_poll
6250 case TARGET_NR_poll:
6251 # endif
6252 # ifdef TARGET_NR_ppoll
6253 case TARGET_NR_ppoll:
6254 # endif
6255 {
6256 struct target_pollfd *target_pfd;
6257 unsigned int nfds = arg2;
6258 int timeout = arg3;
6259 struct pollfd *pfd;
6260 unsigned int i;
6261
6262 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
6263 if (!target_pfd)
6264 goto efault;
6265
6266 pfd = alloca(sizeof(struct pollfd) * nfds);
6267 for(i = 0; i < nfds; i++) {
6268 pfd[i].fd = tswap32(target_pfd[i].fd);
6269 pfd[i].events = tswap16(target_pfd[i].events);
6270 }
6271
6272 # ifdef TARGET_NR_ppoll
6273 if (num == TARGET_NR_ppoll) {
6274 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
6275 target_sigset_t *target_set;
6276 sigset_t _set, *set = &_set;
6277
6278 if (arg3) {
6279 if (target_to_host_timespec(timeout_ts, arg3)) {
6280 unlock_user(target_pfd, arg1, 0);
6281 goto efault;
6282 }
6283 } else {
6284 timeout_ts = NULL;
6285 }
6286
6287 if (arg4) {
6288 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
6289 if (!target_set) {
6290 unlock_user(target_pfd, arg1, 0);
6291 goto efault;
6292 }
6293 target_to_host_sigset(set, target_set);
6294 } else {
6295 set = NULL;
6296 }
6297
6298 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
6299
6300 if (!is_error(ret) && arg3) {
6301 host_to_target_timespec(arg3, timeout_ts);
6302 }
6303 if (arg4) {
6304 unlock_user(target_set, arg4, 0);
6305 }
6306 } else
6307 # endif
6308 ret = get_errno(poll(pfd, nfds, timeout));
6309
6310 if (!is_error(ret)) {
6311 for(i = 0; i < nfds; i++) {
6312 target_pfd[i].revents = tswap16(pfd[i].revents);
6313 }
6314 ret += nfds * (sizeof(struct target_pollfd)
6315 - sizeof(struct pollfd));
6316 }
6317 unlock_user(target_pfd, arg1, ret);
6318 }
6319 break;
6320 #endif
6321 case TARGET_NR_flock:
6322 /* NOTE: the flock constant seems to be the same for every
6323 Linux platform */
6324 ret = get_errno(flock(arg1, arg2));
6325 break;
6326 case TARGET_NR_readv:
6327 {
6328 int count = arg3;
6329 struct iovec *vec;
6330
6331 vec = alloca(count * sizeof(struct iovec));
6332 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
6333 goto efault;
6334 ret = get_errno(readv(arg1, vec, count));
6335 unlock_iovec(vec, arg2, count, 1);
6336 }
6337 break;
6338 case TARGET_NR_writev:
6339 {
6340 int count = arg3;
6341 struct iovec *vec;
6342
6343 vec = alloca(count * sizeof(struct iovec));
6344 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6345 goto efault;
6346 ret = get_errno(writev(arg1, vec, count));
6347 unlock_iovec(vec, arg2, count, 0);
6348 }
6349 break;
6350 case TARGET_NR_getsid:
6351 ret = get_errno(getsid(arg1));
6352 break;
6353 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
6354 case TARGET_NR_fdatasync:
6355 ret = get_errno(fdatasync(arg1));
6356 break;
6357 #endif
6358 case TARGET_NR__sysctl:
6359 /* We don't implement this, but ENOTDIR is always a safe
6360 return value. */
6361 ret = -TARGET_ENOTDIR;
6362 break;
6363 case TARGET_NR_sched_getaffinity:
6364 {
6365 unsigned int mask_size;
6366 unsigned long *mask;
6367
6368 /*
6369 * sched_getaffinity needs multiples of ulong, so need to take
6370 * care of mismatches between target ulong and host ulong sizes.
6371 */
6372 if (arg2 & (sizeof(abi_ulong) - 1)) {
6373 ret = -TARGET_EINVAL;
6374 break;
6375 }
6376 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
6377
6378 mask = alloca(mask_size);
6379 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
6380
6381 if (!is_error(ret)) {
6382 if (arg2 > ret) {
6383 /* Zero out any extra space kernel didn't fill */
6384 unsigned long zero = arg2 - ret;
6385 p = alloca(zero);
6386 memset(p, 0, zero);
6387 if (copy_to_user(arg3 + zero, p, zero)) {
6388 goto efault;
6389 }
6390 arg2 = ret;
6391 }
6392 if (copy_to_user(arg3, mask, arg2)) {
6393 goto efault;
6394 }
6395 ret = arg2;
6396 }
6397 }
6398 break;
6399 case TARGET_NR_sched_setaffinity:
6400 {
6401 unsigned int mask_size;
6402 unsigned long *mask;
6403
6404 /*
6405 * sched_setaffinity needs multiples of ulong, so need to take
6406 * care of mismatches between target ulong and host ulong sizes.
6407 */
6408 if (arg2 & (sizeof(abi_ulong) - 1)) {
6409 ret = -TARGET_EINVAL;
6410 break;
6411 }
6412 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
6413
6414 mask = alloca(mask_size);
6415 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
6416 goto efault;
6417 }
6418 memcpy(mask, p, arg2);
6419 unlock_user_struct(p, arg2, 0);
6420
6421 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
6422 }
6423 break;
6424 case TARGET_NR_sched_setparam:
6425 {
6426 struct sched_param *target_schp;
6427 struct sched_param schp;
6428
6429 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
6430 goto efault;
6431 schp.sched_priority = tswap32(target_schp->sched_priority);
6432 unlock_user_struct(target_schp, arg2, 0);
6433 ret = get_errno(sched_setparam(arg1, &schp));
6434 }
6435 break;
6436 case TARGET_NR_sched_getparam:
6437 {
6438 struct sched_param *target_schp;
6439 struct sched_param schp;
6440 ret = get_errno(sched_getparam(arg1, &schp));
6441 if (!is_error(ret)) {
6442 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
6443 goto efault;
6444 target_schp->sched_priority = tswap32(schp.sched_priority);
6445 unlock_user_struct(target_schp, arg2, 1);
6446 }
6447 }
6448 break;
6449 case TARGET_NR_sched_setscheduler:
6450 {
6451 struct sched_param *target_schp;
6452 struct sched_param schp;
6453 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6454 goto efault;
6455 schp.sched_priority = tswap32(target_schp->sched_priority);
6456 unlock_user_struct(target_schp, arg3, 0);
6457 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6458 }
6459 break;
6460 case TARGET_NR_sched_getscheduler:
6461 ret = get_errno(sched_getscheduler(arg1));
6462 break;
6463 case TARGET_NR_sched_yield:
6464 ret = get_errno(sched_yield());
6465 break;
6466 case TARGET_NR_sched_get_priority_max:
6467 ret = get_errno(sched_get_priority_max(arg1));
6468 break;
6469 case TARGET_NR_sched_get_priority_min:
6470 ret = get_errno(sched_get_priority_min(arg1));
6471 break;
6472 case TARGET_NR_sched_rr_get_interval:
6473 {
6474 struct timespec ts;
6475 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6476 if (!is_error(ret)) {
6477 host_to_target_timespec(arg2, &ts);
6478 }
6479 }
6480 break;
6481 case TARGET_NR_nanosleep:
6482 {
6483 struct timespec req, rem;
6484 target_to_host_timespec(&req, arg1);
6485 ret = get_errno(nanosleep(&req, &rem));
6486 if (is_error(ret) && arg2) {
6487 host_to_target_timespec(arg2, &rem);
6488 }
6489 }
6490 break;
6491 #ifdef TARGET_NR_query_module
6492 case TARGET_NR_query_module:
6493 goto unimplemented;
6494 #endif
6495 #ifdef TARGET_NR_nfsservctl
6496 case TARGET_NR_nfsservctl:
6497 goto unimplemented;
6498 #endif
6499 case TARGET_NR_prctl:
6500 switch (arg1)
6501 {
6502 case PR_GET_PDEATHSIG:
6503 {
6504 int deathsig;
6505 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6506 if (!is_error(ret) && arg2
6507 && put_user_ual(deathsig, arg2))
6508 goto efault;
6509 }
6510 break;
6511 default:
6512 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6513 break;
6514 }
6515 break;
6516 #ifdef TARGET_NR_arch_prctl
6517 case TARGET_NR_arch_prctl:
6518 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6519 ret = do_arch_prctl(cpu_env, arg1, arg2);
6520 break;
6521 #else
6522 goto unimplemented;
6523 #endif
6524 #endif
6525 #ifdef TARGET_NR_pread
6526 case TARGET_NR_pread:
6527 #ifdef TARGET_ARM
6528 if (((CPUARMState *)cpu_env)->eabi)
6529 arg4 = arg5;
6530 #endif
6531 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6532 goto efault;
6533 ret = get_errno(pread(arg1, p, arg3, arg4));
6534 unlock_user(p, arg2, ret);
6535 break;
6536 case TARGET_NR_pwrite:
6537 #ifdef TARGET_ARM
6538 if (((CPUARMState *)cpu_env)->eabi)
6539 arg4 = arg5;
6540 #endif
6541 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6542 goto efault;
6543 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6544 unlock_user(p, arg2, 0);
6545 break;
6546 #endif
6547 #ifdef TARGET_NR_pread64
6548 case TARGET_NR_pread64:
6549 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6550 goto efault;
6551 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6552 unlock_user(p, arg2, ret);
6553 break;
6554 case TARGET_NR_pwrite64:
6555 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6556 goto efault;
6557 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6558 unlock_user(p, arg2, 0);
6559 break;
6560 #endif
6561 case TARGET_NR_getcwd:
6562 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6563 goto efault;
6564 ret = get_errno(sys_getcwd1(p, arg2));
6565 unlock_user(p, arg1, ret);
6566 break;
6567 case TARGET_NR_capget:
6568 goto unimplemented;
6569 case TARGET_NR_capset:
6570 goto unimplemented;
6571 case TARGET_NR_sigaltstack:
6572 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6573 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6574 defined(TARGET_M68K)
6575 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6576 break;
6577 #else
6578 goto unimplemented;
6579 #endif
6580 case TARGET_NR_sendfile:
6581 goto unimplemented;
6582 #ifdef TARGET_NR_getpmsg
6583 case TARGET_NR_getpmsg:
6584 goto unimplemented;
6585 #endif
6586 #ifdef TARGET_NR_putpmsg
6587 case TARGET_NR_putpmsg:
6588 goto unimplemented;
6589 #endif
6590 #ifdef TARGET_NR_vfork
6591 case TARGET_NR_vfork:
6592 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6593 0, 0, 0, 0));
6594 break;
6595 #endif
6596 #ifdef TARGET_NR_ugetrlimit
6597 case TARGET_NR_ugetrlimit:
6598 {
6599 struct rlimit rlim;
6600 ret = get_errno(getrlimit(arg1, &rlim));
6601 if (!is_error(ret)) {
6602 struct target_rlimit *target_rlim;
6603 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6604 goto efault;
6605 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6606 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6607 unlock_user_struct(target_rlim, arg2, 1);
6608 }
6609 break;
6610 }
6611 #endif
6612 #ifdef TARGET_NR_truncate64
6613 case TARGET_NR_truncate64:
6614 if (!(p = lock_user_string(arg1)))
6615 goto efault;
6616 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6617 unlock_user(p, arg1, 0);
6618 break;
6619 #endif
6620 #ifdef TARGET_NR_ftruncate64
6621 case TARGET_NR_ftruncate64:
6622 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6623 break;
6624 #endif
6625 #ifdef TARGET_NR_stat64
6626 case TARGET_NR_stat64:
6627 if (!(p = lock_user_string(arg1)))
6628 goto efault;
6629 ret = get_errno(stat(path(p), &st));
6630 unlock_user(p, arg1, 0);
6631 if (!is_error(ret))
6632 ret = host_to_target_stat64(cpu_env, arg2, &st);
6633 break;
6634 #endif
6635 #ifdef TARGET_NR_lstat64
6636 case TARGET_NR_lstat64:
6637 if (!(p = lock_user_string(arg1)))
6638 goto efault;
6639 ret = get_errno(lstat(path(p), &st));
6640 unlock_user(p, arg1, 0);
6641 if (!is_error(ret))
6642 ret = host_to_target_stat64(cpu_env, arg2, &st);
6643 break;
6644 #endif
6645 #ifdef TARGET_NR_fstat64
6646 case TARGET_NR_fstat64:
6647 ret = get_errno(fstat(arg1, &st));
6648 if (!is_error(ret))
6649 ret = host_to_target_stat64(cpu_env, arg2, &st);
6650 break;
6651 #endif
6652 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6653 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6654 #ifdef TARGET_NR_fstatat64
6655 case TARGET_NR_fstatat64:
6656 #endif
6657 #ifdef TARGET_NR_newfstatat
6658 case TARGET_NR_newfstatat:
6659 #endif
6660 if (!(p = lock_user_string(arg2)))
6661 goto efault;
6662 #ifdef __NR_fstatat64
6663 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6664 #else
6665 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6666 #endif
6667 if (!is_error(ret))
6668 ret = host_to_target_stat64(cpu_env, arg3, &st);
6669 break;
6670 #endif
6671 #ifdef USE_UID16
6672 case TARGET_NR_lchown:
6673 if (!(p = lock_user_string(arg1)))
6674 goto efault;
6675 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6676 unlock_user(p, arg1, 0);
6677 break;
6678 case TARGET_NR_getuid:
6679 ret = get_errno(high2lowuid(getuid()));
6680 break;
6681 case TARGET_NR_getgid:
6682 ret = get_errno(high2lowgid(getgid()));
6683 break;
6684 case TARGET_NR_geteuid:
6685 ret = get_errno(high2lowuid(geteuid()));
6686 break;
6687 case TARGET_NR_getegid:
6688 ret = get_errno(high2lowgid(getegid()));
6689 break;
6690 case TARGET_NR_setreuid:
6691 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6692 break;
6693 case TARGET_NR_setregid:
6694 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6695 break;
6696 case TARGET_NR_getgroups:
6697 {
6698 int gidsetsize = arg1;
6699 uint16_t *target_grouplist;
6700 gid_t *grouplist;
6701 int i;
6702
6703 grouplist = alloca(gidsetsize * sizeof(gid_t));
6704 ret = get_errno(getgroups(gidsetsize, grouplist));
6705 if (gidsetsize == 0)
6706 break;
6707 if (!is_error(ret)) {
6708 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6709 if (!target_grouplist)
6710 goto efault;
6711 for(i = 0;i < ret; i++)
6712 target_grouplist[i] = tswap16(grouplist[i]);
6713 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6714 }
6715 }
6716 break;
6717 case TARGET_NR_setgroups:
6718 {
6719 int gidsetsize = arg1;
6720 uint16_t *target_grouplist;
6721 gid_t *grouplist;
6722 int i;
6723
6724 grouplist = alloca(gidsetsize * sizeof(gid_t));
6725 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6726 if (!target_grouplist) {
6727 ret = -TARGET_EFAULT;
6728 goto fail;
6729 }
6730 for(i = 0;i < gidsetsize; i++)
6731 grouplist[i] = tswap16(target_grouplist[i]);
6732 unlock_user(target_grouplist, arg2, 0);
6733 ret = get_errno(setgroups(gidsetsize, grouplist));
6734 }
6735 break;
6736 case TARGET_NR_fchown:
6737 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6738 break;
6739 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6740 case TARGET_NR_fchownat:
6741 if (!(p = lock_user_string(arg2)))
6742 goto efault;
6743 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6744 unlock_user(p, arg2, 0);
6745 break;
6746 #endif
6747 #ifdef TARGET_NR_setresuid
6748 case TARGET_NR_setresuid:
6749 ret = get_errno(setresuid(low2highuid(arg1),
6750 low2highuid(arg2),
6751 low2highuid(arg3)));
6752 break;
6753 #endif
6754 #ifdef TARGET_NR_getresuid
6755 case TARGET_NR_getresuid:
6756 {
6757 uid_t ruid, euid, suid;
6758 ret = get_errno(getresuid(&ruid, &euid, &suid));
6759 if (!is_error(ret)) {
6760 if (put_user_u16(high2lowuid(ruid), arg1)
6761 || put_user_u16(high2lowuid(euid), arg2)
6762 || put_user_u16(high2lowuid(suid), arg3))
6763 goto efault;
6764 }
6765 }
6766 break;
6767 #endif
6768 #ifdef TARGET_NR_getresgid
6769 case TARGET_NR_setresgid:
6770 ret = get_errno(setresgid(low2highgid(arg1),
6771 low2highgid(arg2),
6772 low2highgid(arg3)));
6773 break;
6774 #endif
6775 #ifdef TARGET_NR_getresgid
6776 case TARGET_NR_getresgid:
6777 {
6778 gid_t rgid, egid, sgid;
6779 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6780 if (!is_error(ret)) {
6781 if (put_user_u16(high2lowgid(rgid), arg1)
6782 || put_user_u16(high2lowgid(egid), arg2)
6783 || put_user_u16(high2lowgid(sgid), arg3))
6784 goto efault;
6785 }
6786 }
6787 break;
6788 #endif
6789 case TARGET_NR_chown:
6790 if (!(p = lock_user_string(arg1)))
6791 goto efault;
6792 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6793 unlock_user(p, arg1, 0);
6794 break;
6795 case TARGET_NR_setuid:
6796 ret = get_errno(setuid(low2highuid(arg1)));
6797 break;
6798 case TARGET_NR_setgid:
6799 ret = get_errno(setgid(low2highgid(arg1)));
6800 break;
6801 case TARGET_NR_setfsuid:
6802 ret = get_errno(setfsuid(arg1));
6803 break;
6804 case TARGET_NR_setfsgid:
6805 ret = get_errno(setfsgid(arg1));
6806 break;
6807 #endif /* USE_UID16 */
6808
6809 #ifdef TARGET_NR_lchown32
6810 case TARGET_NR_lchown32:
6811 if (!(p = lock_user_string(arg1)))
6812 goto efault;
6813 ret = get_errno(lchown(p, arg2, arg3));
6814 unlock_user(p, arg1, 0);
6815 break;
6816 #endif
6817 #ifdef TARGET_NR_getuid32
6818 case TARGET_NR_getuid32:
6819 ret = get_errno(getuid());
6820 break;
6821 #endif
6822
6823 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6824 /* Alpha specific */
6825 case TARGET_NR_getxuid:
6826 {
6827 uid_t euid;
6828 euid=geteuid();
6829 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6830 }
6831 ret = get_errno(getuid());
6832 break;
6833 #endif
6834 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6835 /* Alpha specific */
6836 case TARGET_NR_getxgid:
6837 {
6838 uid_t egid;
6839 egid=getegid();
6840 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6841 }
6842 ret = get_errno(getgid());
6843 break;
6844 #endif
6845 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
6846 /* Alpha specific */
6847 case TARGET_NR_osf_getsysinfo:
6848 ret = -TARGET_EOPNOTSUPP;
6849 switch (arg1) {
6850 case TARGET_GSI_IEEE_FP_CONTROL:
6851 {
6852 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
6853
6854 /* Copied from linux ieee_fpcr_to_swcr. */
6855 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
6856 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
6857 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
6858 | SWCR_TRAP_ENABLE_DZE
6859 | SWCR_TRAP_ENABLE_OVF);
6860 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
6861 | SWCR_TRAP_ENABLE_INE);
6862 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
6863 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
6864
6865 if (put_user_u64 (swcr, arg2))
6866 goto efault;
6867 ret = 0;
6868 }
6869 break;
6870
6871 /* case GSI_IEEE_STATE_AT_SIGNAL:
6872 -- Not implemented in linux kernel.
6873 case GSI_UACPROC:
6874 -- Retrieves current unaligned access state; not much used.
6875 case GSI_PROC_TYPE:
6876 -- Retrieves implver information; surely not used.
6877 case GSI_GET_HWRPB:
6878 -- Grabs a copy of the HWRPB; surely not used.
6879 */
6880 }
6881 break;
6882 #endif
6883 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
6884 /* Alpha specific */
6885 case TARGET_NR_osf_setsysinfo:
6886 ret = -TARGET_EOPNOTSUPP;
6887 switch (arg1) {
6888 case TARGET_SSI_IEEE_FP_CONTROL:
6889 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
6890 {
6891 uint64_t swcr, fpcr, orig_fpcr;
6892
6893 if (get_user_u64 (swcr, arg2))
6894 goto efault;
6895 orig_fpcr = cpu_alpha_load_fpcr (cpu_env);
6896 fpcr = orig_fpcr & FPCR_DYN_MASK;
6897
6898 /* Copied from linux ieee_swcr_to_fpcr. */
6899 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
6900 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
6901 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
6902 | SWCR_TRAP_ENABLE_DZE
6903 | SWCR_TRAP_ENABLE_OVF)) << 48;
6904 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
6905 | SWCR_TRAP_ENABLE_INE)) << 57;
6906 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
6907 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
6908
6909 cpu_alpha_store_fpcr (cpu_env, fpcr);
6910 ret = 0;
6911
6912 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) {
6913 /* Old exceptions are not signaled. */
6914 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
6915
6916 /* If any exceptions set by this call, and are unmasked,
6917 send a signal. */
6918 /* ??? FIXME */
6919 }
6920 }
6921 break;
6922
6923 /* case SSI_NVPAIRS:
6924 -- Used with SSIN_UACPROC to enable unaligned accesses.
6925 case SSI_IEEE_STATE_AT_SIGNAL:
6926 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
6927 -- Not implemented in linux kernel
6928 */
6929 }
6930 break;
6931 #endif
6932 #ifdef TARGET_NR_osf_sigprocmask
6933 /* Alpha specific. */
6934 case TARGET_NR_osf_sigprocmask:
6935 {
6936 abi_ulong mask;
6937 int how = arg1;
6938 sigset_t set, oldset;
6939
6940 switch(arg1) {
6941 case TARGET_SIG_BLOCK:
6942 how = SIG_BLOCK;
6943 break;
6944 case TARGET_SIG_UNBLOCK:
6945 how = SIG_UNBLOCK;
6946 break;
6947 case TARGET_SIG_SETMASK:
6948 how = SIG_SETMASK;
6949 break;
6950 default:
6951 ret = -TARGET_EINVAL;
6952 goto fail;
6953 }
6954 mask = arg2;
6955 target_to_host_old_sigset(&set, &mask);
6956 sigprocmask(arg1, &set, &oldset);
6957 host_to_target_old_sigset(&mask, &oldset);
6958 ret = mask;
6959 }
6960 break;
6961 #endif
6962
6963 #ifdef TARGET_NR_getgid32
6964 case TARGET_NR_getgid32:
6965 ret = get_errno(getgid());
6966 break;
6967 #endif
6968 #ifdef TARGET_NR_geteuid32
6969 case TARGET_NR_geteuid32:
6970 ret = get_errno(geteuid());
6971 break;
6972 #endif
6973 #ifdef TARGET_NR_getegid32
6974 case TARGET_NR_getegid32:
6975 ret = get_errno(getegid());
6976 break;
6977 #endif
6978 #ifdef TARGET_NR_setreuid32
6979 case TARGET_NR_setreuid32:
6980 ret = get_errno(setreuid(arg1, arg2));
6981 break;
6982 #endif
6983 #ifdef TARGET_NR_setregid32
6984 case TARGET_NR_setregid32:
6985 ret = get_errno(setregid(arg1, arg2));
6986 break;
6987 #endif
6988 #ifdef TARGET_NR_getgroups32
6989 case TARGET_NR_getgroups32:
6990 {
6991 int gidsetsize = arg1;
6992 uint32_t *target_grouplist;
6993 gid_t *grouplist;
6994 int i;
6995
6996 grouplist = alloca(gidsetsize * sizeof(gid_t));
6997 ret = get_errno(getgroups(gidsetsize, grouplist));
6998 if (gidsetsize == 0)
6999 break;
7000 if (!is_error(ret)) {
7001 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
7002 if (!target_grouplist) {
7003 ret = -TARGET_EFAULT;
7004 goto fail;
7005 }
7006 for(i = 0;i < ret; i++)
7007 target_grouplist[i] = tswap32(grouplist[i]);
7008 unlock_user(target_grouplist, arg2, gidsetsize * 4);
7009 }
7010 }
7011 break;
7012 #endif
7013 #ifdef TARGET_NR_setgroups32
7014 case TARGET_NR_setgroups32:
7015 {
7016 int gidsetsize = arg1;
7017 uint32_t *target_grouplist;
7018 gid_t *grouplist;
7019 int i;
7020
7021 grouplist = alloca(gidsetsize * sizeof(gid_t));
7022 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
7023 if (!target_grouplist) {
7024 ret = -TARGET_EFAULT;
7025 goto fail;
7026 }
7027 for(i = 0;i < gidsetsize; i++)
7028 grouplist[i] = tswap32(target_grouplist[i]);
7029 unlock_user(target_grouplist, arg2, 0);
7030 ret = get_errno(setgroups(gidsetsize, grouplist));
7031 }
7032 break;
7033 #endif
7034 #ifdef TARGET_NR_fchown32
7035 case TARGET_NR_fchown32:
7036 ret = get_errno(fchown(arg1, arg2, arg3));
7037 break;
7038 #endif
7039 #ifdef TARGET_NR_setresuid32
7040 case TARGET_NR_setresuid32:
7041 ret = get_errno(setresuid(arg1, arg2, arg3));
7042 break;
7043 #endif
7044 #ifdef TARGET_NR_getresuid32
7045 case TARGET_NR_getresuid32:
7046 {
7047 uid_t ruid, euid, suid;
7048 ret = get_errno(getresuid(&ruid, &euid, &suid));
7049 if (!is_error(ret)) {
7050 if (put_user_u32(ruid, arg1)
7051 || put_user_u32(euid, arg2)
7052 || put_user_u32(suid, arg3))
7053 goto efault;
7054 }
7055 }
7056 break;
7057 #endif
7058 #ifdef TARGET_NR_setresgid32
7059 case TARGET_NR_setresgid32:
7060 ret = get_errno(setresgid(arg1, arg2, arg3));
7061 break;
7062 #endif
7063 #ifdef TARGET_NR_getresgid32
7064 case TARGET_NR_getresgid32:
7065 {
7066 gid_t rgid, egid, sgid;
7067 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7068 if (!is_error(ret)) {
7069 if (put_user_u32(rgid, arg1)
7070 || put_user_u32(egid, arg2)
7071 || put_user_u32(sgid, arg3))
7072 goto efault;
7073 }
7074 }
7075 break;
7076 #endif
7077 #ifdef TARGET_NR_chown32
7078 case TARGET_NR_chown32:
7079 if (!(p = lock_user_string(arg1)))
7080 goto efault;
7081 ret = get_errno(chown(p, arg2, arg3));
7082 unlock_user(p, arg1, 0);
7083 break;
7084 #endif
7085 #ifdef TARGET_NR_setuid32
7086 case TARGET_NR_setuid32:
7087 ret = get_errno(setuid(arg1));
7088 break;
7089 #endif
7090 #ifdef TARGET_NR_setgid32
7091 case TARGET_NR_setgid32:
7092 ret = get_errno(setgid(arg1));
7093 break;
7094 #endif
7095 #ifdef TARGET_NR_setfsuid32
7096 case TARGET_NR_setfsuid32:
7097 ret = get_errno(setfsuid(arg1));
7098 break;
7099 #endif
7100 #ifdef TARGET_NR_setfsgid32
7101 case TARGET_NR_setfsgid32:
7102 ret = get_errno(setfsgid(arg1));
7103 break;
7104 #endif
7105
7106 case TARGET_NR_pivot_root:
7107 goto unimplemented;
7108 #ifdef TARGET_NR_mincore
7109 case TARGET_NR_mincore:
7110 {
7111 void *a;
7112 ret = -TARGET_EFAULT;
7113 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
7114 goto efault;
7115 if (!(p = lock_user_string(arg3)))
7116 goto mincore_fail;
7117 ret = get_errno(mincore(a, arg2, p));
7118 unlock_user(p, arg3, ret);
7119 mincore_fail:
7120 unlock_user(a, arg1, 0);
7121 }
7122 break;
7123 #endif
7124 #ifdef TARGET_NR_arm_fadvise64_64
7125 case TARGET_NR_arm_fadvise64_64:
7126 {
7127 /*
7128 * arm_fadvise64_64 looks like fadvise64_64 but
7129 * with different argument order
7130 */
7131 abi_long temp;
7132 temp = arg3;
7133 arg3 = arg4;
7134 arg4 = temp;
7135 }
7136 #endif
7137 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
7138 #ifdef TARGET_NR_fadvise64_64
7139 case TARGET_NR_fadvise64_64:
7140 #endif
7141 #ifdef TARGET_NR_fadvise64
7142 case TARGET_NR_fadvise64:
7143 #endif
7144 #ifdef TARGET_S390X
7145 switch (arg4) {
7146 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
7147 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
7148 case 6: arg4 = POSIX_FADV_DONTNEED; break;
7149 case 7: arg4 = POSIX_FADV_NOREUSE; break;
7150 default: break;
7151 }
7152 #endif
7153 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
7154 break;
7155 #endif
7156 #ifdef TARGET_NR_madvise
7157 case TARGET_NR_madvise:
7158 /* A straight passthrough may not be safe because qemu sometimes
7159 turns private flie-backed mappings into anonymous mappings.
7160 This will break MADV_DONTNEED.
7161 This is a hint, so ignoring and returning success is ok. */
7162 ret = get_errno(0);
7163 break;
7164 #endif
7165 #if TARGET_ABI_BITS == 32
7166 case TARGET_NR_fcntl64:
7167 {
7168 int cmd;
7169 struct flock64 fl;
7170 struct target_flock64 *target_fl;
7171 #ifdef TARGET_ARM
7172 struct target_eabi_flock64 *target_efl;
7173 #endif
7174
7175 cmd = target_to_host_fcntl_cmd(arg2);
7176 if (cmd == -TARGET_EINVAL)
7177 return cmd;
7178
7179 switch(arg2) {
7180 case TARGET_F_GETLK64:
7181 #ifdef TARGET_ARM
7182 if (((CPUARMState *)cpu_env)->eabi) {
7183 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7184 goto efault;
7185 fl.l_type = tswap16(target_efl->l_type);
7186 fl.l_whence = tswap16(target_efl->l_whence);
7187 fl.l_start = tswap64(target_efl->l_start);
7188 fl.l_len = tswap64(target_efl->l_len);
7189 fl.l_pid = tswap32(target_efl->l_pid);
7190 unlock_user_struct(target_efl, arg3, 0);
7191 } else
7192 #endif
7193 {
7194 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7195 goto efault;
7196 fl.l_type = tswap16(target_fl->l_type);
7197 fl.l_whence = tswap16(target_fl->l_whence);
7198 fl.l_start = tswap64(target_fl->l_start);
7199 fl.l_len = tswap64(target_fl->l_len);
7200 fl.l_pid = tswap32(target_fl->l_pid);
7201 unlock_user_struct(target_fl, arg3, 0);
7202 }
7203 ret = get_errno(fcntl(arg1, cmd, &fl));
7204 if (ret == 0) {
7205 #ifdef TARGET_ARM
7206 if (((CPUARMState *)cpu_env)->eabi) {
7207 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
7208 goto efault;
7209 target_efl->l_type = tswap16(fl.l_type);
7210 target_efl->l_whence = tswap16(fl.l_whence);
7211 target_efl->l_start = tswap64(fl.l_start);
7212 target_efl->l_len = tswap64(fl.l_len);
7213 target_efl->l_pid = tswap32(fl.l_pid);
7214 unlock_user_struct(target_efl, arg3, 1);
7215 } else
7216 #endif
7217 {
7218 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
7219 goto efault;
7220 target_fl->l_type = tswap16(fl.l_type);
7221 target_fl->l_whence = tswap16(fl.l_whence);
7222 target_fl->l_start = tswap64(fl.l_start);
7223 target_fl->l_len = tswap64(fl.l_len);
7224 target_fl->l_pid = tswap32(fl.l_pid);
7225 unlock_user_struct(target_fl, arg3, 1);
7226 }
7227 }
7228 break;
7229
7230 case TARGET_F_SETLK64:
7231 case TARGET_F_SETLKW64:
7232 #ifdef TARGET_ARM
7233 if (((CPUARMState *)cpu_env)->eabi) {
7234 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7235 goto efault;
7236 fl.l_type = tswap16(target_efl->l_type);
7237 fl.l_whence = tswap16(target_efl->l_whence);
7238 fl.l_start = tswap64(target_efl->l_start);
7239 fl.l_len = tswap64(target_efl->l_len);
7240 fl.l_pid = tswap32(target_efl->l_pid);
7241 unlock_user_struct(target_efl, arg3, 0);
7242 } else
7243 #endif
7244 {
7245 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7246 goto efault;
7247 fl.l_type = tswap16(target_fl->l_type);
7248 fl.l_whence = tswap16(target_fl->l_whence);
7249 fl.l_start = tswap64(target_fl->l_start);
7250 fl.l_len = tswap64(target_fl->l_len);
7251 fl.l_pid = tswap32(target_fl->l_pid);
7252 unlock_user_struct(target_fl, arg3, 0);
7253 }
7254 ret = get_errno(fcntl(arg1, cmd, &fl));
7255 break;
7256 default:
7257 ret = do_fcntl(arg1, arg2, arg3);
7258 break;
7259 }
7260 break;
7261 }
7262 #endif
7263 #ifdef TARGET_NR_cacheflush
7264 case TARGET_NR_cacheflush:
7265 /* self-modifying code is handled automatically, so nothing needed */
7266 ret = 0;
7267 break;
7268 #endif
7269 #ifdef TARGET_NR_security
7270 case TARGET_NR_security:
7271 goto unimplemented;
7272 #endif
7273 #ifdef TARGET_NR_getpagesize
7274 case TARGET_NR_getpagesize:
7275 ret = TARGET_PAGE_SIZE;
7276 break;
7277 #endif
7278 case TARGET_NR_gettid:
7279 ret = get_errno(gettid());
7280 break;
7281 #ifdef TARGET_NR_readahead
7282 case TARGET_NR_readahead:
7283 #if TARGET_ABI_BITS == 32
7284 #ifdef TARGET_ARM
7285 if (((CPUARMState *)cpu_env)->eabi)
7286 {
7287 arg2 = arg3;
7288 arg3 = arg4;
7289 arg4 = arg5;
7290 }
7291 #endif
7292 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
7293 #else
7294 ret = get_errno(readahead(arg1, arg2, arg3));
7295 #endif
7296 break;
7297 #endif
7298 #ifdef TARGET_NR_setxattr
7299 case TARGET_NR_setxattr:
7300 case TARGET_NR_lsetxattr:
7301 case TARGET_NR_fsetxattr:
7302 case TARGET_NR_getxattr:
7303 case TARGET_NR_lgetxattr:
7304 case TARGET_NR_fgetxattr:
7305 case TARGET_NR_listxattr:
7306 case TARGET_NR_llistxattr:
7307 case TARGET_NR_flistxattr:
7308 case TARGET_NR_removexattr:
7309 case TARGET_NR_lremovexattr:
7310 case TARGET_NR_fremovexattr:
7311 ret = -TARGET_EOPNOTSUPP;
7312 break;
7313 #endif
7314 #ifdef TARGET_NR_set_thread_area
7315 case TARGET_NR_set_thread_area:
7316 #if defined(TARGET_MIPS)
7317 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
7318 ret = 0;
7319 break;
7320 #elif defined(TARGET_CRIS)
7321 if (arg1 & 0xff)
7322 ret = -TARGET_EINVAL;
7323 else {
7324 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
7325 ret = 0;
7326 }
7327 break;
7328 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
7329 ret = do_set_thread_area(cpu_env, arg1);
7330 break;
7331 #else
7332 goto unimplemented_nowarn;
7333 #endif
7334 #endif
7335 #ifdef TARGET_NR_get_thread_area
7336 case TARGET_NR_get_thread_area:
7337 #if defined(TARGET_I386) && defined(TARGET_ABI32)
7338 ret = do_get_thread_area(cpu_env, arg1);
7339 #else
7340 goto unimplemented_nowarn;
7341 #endif
7342 #endif
7343 #ifdef TARGET_NR_getdomainname
7344 case TARGET_NR_getdomainname:
7345 goto unimplemented_nowarn;
7346 #endif
7347
7348 #ifdef TARGET_NR_clock_gettime
7349 case TARGET_NR_clock_gettime:
7350 {
7351 struct timespec ts;
7352 ret = get_errno(clock_gettime(arg1, &ts));
7353 if (!is_error(ret)) {
7354 host_to_target_timespec(arg2, &ts);
7355 }
7356 break;
7357 }
7358 #endif
7359 #ifdef TARGET_NR_clock_getres
7360 case TARGET_NR_clock_getres:
7361 {
7362 struct timespec ts;
7363 ret = get_errno(clock_getres(arg1, &ts));
7364 if (!is_error(ret)) {
7365 host_to_target_timespec(arg2, &ts);
7366 }
7367 break;
7368 }
7369 #endif
7370 #ifdef TARGET_NR_clock_nanosleep
7371 case TARGET_NR_clock_nanosleep:
7372 {
7373 struct timespec ts;
7374 target_to_host_timespec(&ts, arg3);
7375 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
7376 if (arg4)
7377 host_to_target_timespec(arg4, &ts);
7378 break;
7379 }
7380 #endif
7381
7382 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
7383 case TARGET_NR_set_tid_address:
7384 ret = get_errno(set_tid_address((int *)g2h(arg1)));
7385 break;
7386 #endif
7387
7388 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
7389 case TARGET_NR_tkill:
7390 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
7391 break;
7392 #endif
7393
7394 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
7395 case TARGET_NR_tgkill:
7396 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
7397 target_to_host_signal(arg3)));
7398 break;
7399 #endif
7400
7401 #ifdef TARGET_NR_set_robust_list
7402 case TARGET_NR_set_robust_list:
7403 goto unimplemented_nowarn;
7404 #endif
7405
7406 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
7407 case TARGET_NR_utimensat:
7408 {
7409 struct timespec *tsp, ts[2];
7410 if (!arg3) {
7411 tsp = NULL;
7412 } else {
7413 target_to_host_timespec(ts, arg3);
7414 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
7415 tsp = ts;
7416 }
7417 if (!arg2)
7418 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
7419 else {
7420 if (!(p = lock_user_string(arg2))) {
7421 ret = -TARGET_EFAULT;
7422 goto fail;
7423 }
7424 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
7425 unlock_user(p, arg2, 0);
7426 }
7427 }
7428 break;
7429 #endif
7430 #if defined(CONFIG_USE_NPTL)
7431 case TARGET_NR_futex:
7432 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
7433 break;
7434 #endif
7435 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
7436 case TARGET_NR_inotify_init:
7437 ret = get_errno(sys_inotify_init());
7438 break;
7439 #endif
7440 #ifdef CONFIG_INOTIFY1
7441 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
7442 case TARGET_NR_inotify_init1:
7443 ret = get_errno(sys_inotify_init1(arg1));
7444 break;
7445 #endif
7446 #endif
7447 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
7448 case TARGET_NR_inotify_add_watch:
7449 p = lock_user_string(arg2);
7450 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
7451 unlock_user(p, arg2, 0);
7452 break;
7453 #endif
7454 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
7455 case TARGET_NR_inotify_rm_watch:
7456 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
7457 break;
7458 #endif
7459
7460 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
7461 case TARGET_NR_mq_open:
7462 {
7463 struct mq_attr posix_mq_attr;
7464
7465 p = lock_user_string(arg1 - 1);
7466 if (arg4 != 0)
7467 copy_from_user_mq_attr (&posix_mq_attr, arg4);
7468 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
7469 unlock_user (p, arg1, 0);
7470 }
7471 break;
7472
7473 case TARGET_NR_mq_unlink:
7474 p = lock_user_string(arg1 - 1);
7475 ret = get_errno(mq_unlink(p));
7476 unlock_user (p, arg1, 0);
7477 break;
7478
7479 case TARGET_NR_mq_timedsend:
7480 {
7481 struct timespec ts;
7482
7483 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7484 if (arg5 != 0) {
7485 target_to_host_timespec(&ts, arg5);
7486 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
7487 host_to_target_timespec(arg5, &ts);
7488 }
7489 else
7490 ret = get_errno(mq_send(arg1, p, arg3, arg4));
7491 unlock_user (p, arg2, arg3);
7492 }
7493 break;
7494
7495 case TARGET_NR_mq_timedreceive:
7496 {
7497 struct timespec ts;
7498 unsigned int prio;
7499
7500 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7501 if (arg5 != 0) {
7502 target_to_host_timespec(&ts, arg5);
7503 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
7504 host_to_target_timespec(arg5, &ts);
7505 }
7506 else
7507 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
7508 unlock_user (p, arg2, arg3);
7509 if (arg4 != 0)
7510 put_user_u32(prio, arg4);
7511 }
7512 break;
7513
7514 /* Not implemented for now... */
7515 /* case TARGET_NR_mq_notify: */
7516 /* break; */
7517
7518 case TARGET_NR_mq_getsetattr:
7519 {
7520 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
7521 ret = 0;
7522 if (arg3 != 0) {
7523 ret = mq_getattr(arg1, &posix_mq_attr_out);
7524 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
7525 }
7526 if (arg2 != 0) {
7527 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
7528 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
7529 }
7530
7531 }
7532 break;
7533 #endif
7534
7535 #ifdef CONFIG_SPLICE
7536 #ifdef TARGET_NR_tee
7537 case TARGET_NR_tee:
7538 {
7539 ret = get_errno(tee(arg1,arg2,arg3,arg4));
7540 }
7541 break;
7542 #endif
7543 #ifdef TARGET_NR_splice
7544 case TARGET_NR_splice:
7545 {
7546 loff_t loff_in, loff_out;
7547 loff_t *ploff_in = NULL, *ploff_out = NULL;
7548 if(arg2) {
7549 get_user_u64(loff_in, arg2);
7550 ploff_in = &loff_in;
7551 }
7552 if(arg4) {
7553 get_user_u64(loff_out, arg2);
7554 ploff_out = &loff_out;
7555 }
7556 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
7557 }
7558 break;
7559 #endif
7560 #ifdef TARGET_NR_vmsplice
7561 case TARGET_NR_vmsplice:
7562 {
7563 int count = arg3;
7564 struct iovec *vec;
7565
7566 vec = alloca(count * sizeof(struct iovec));
7567 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
7568 goto efault;
7569 ret = get_errno(vmsplice(arg1, vec, count, arg4));
7570 unlock_iovec(vec, arg2, count, 0);
7571 }
7572 break;
7573 #endif
7574 #endif /* CONFIG_SPLICE */
7575 #ifdef CONFIG_EVENTFD
7576 #if defined(TARGET_NR_eventfd)
7577 case TARGET_NR_eventfd:
7578 ret = get_errno(eventfd(arg1, 0));
7579 break;
7580 #endif
7581 #if defined(TARGET_NR_eventfd2)
7582 case TARGET_NR_eventfd2:
7583 ret = get_errno(eventfd(arg1, arg2));
7584 break;
7585 #endif
7586 #endif /* CONFIG_EVENTFD */
7587 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
7588 case TARGET_NR_fallocate:
7589 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
7590 break;
7591 #endif
7592 #if defined(CONFIG_SYNC_FILE_RANGE)
7593 #if defined(TARGET_NR_sync_file_range)
7594 case TARGET_NR_sync_file_range:
7595 #if TARGET_ABI_BITS == 32
7596 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
7597 target_offset64(arg4, arg5), arg6));
7598 #else
7599 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
7600 #endif
7601 break;
7602 #endif
7603 #if defined(TARGET_NR_sync_file_range2)
7604 case TARGET_NR_sync_file_range2:
7605 /* This is like sync_file_range but the arguments are reordered */
7606 #if TARGET_ABI_BITS == 32
7607 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
7608 target_offset64(arg5, arg6), arg2));
7609 #else
7610 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
7611 #endif
7612 break;
7613 #endif
7614 #endif
7615 default:
7616 unimplemented:
7617 gemu_log("qemu: Unsupported syscall: %d\n", num);
7618 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
7619 unimplemented_nowarn:
7620 #endif
7621 ret = -TARGET_ENOSYS;
7622 break;
7623 }
7624 fail:
7625 #ifdef DEBUG
7626 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
7627 #endif
7628 if(do_strace)
7629 print_syscall_ret(num, ret);
7630 return ret;
7631 efault:
7632 ret = -TARGET_EFAULT;
7633 goto fail;
7634 }
QEmu