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checkpatch: remove rule on non-indented labels
[qemu.git] / linux-user / syscall.c
blob9f5da360212debfc6c0bfbf0790f80c343b8e45a
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 <linux/wireless.h>
63 #include "qemu-common.h"
64 #ifdef TARGET_GPROF
65 #include <sys/gmon.h>
66 #endif
67 #ifdef CONFIG_EVENTFD
68 #include <sys/eventfd.h>
69 #endif
70 #ifdef CONFIG_EPOLL
71 #include <sys/epoll.h>
72 #endif
73 #ifdef CONFIG_ATTR
74 #include <attr/xattr.h>
75 #endif
76
77 #define termios host_termios
78 #define winsize host_winsize
79 #define termio host_termio
80 #define sgttyb host_sgttyb /* same as target */
81 #define tchars host_tchars /* same as target */
82 #define ltchars host_ltchars /* same as target */
83
84 #include <linux/termios.h>
85 #include <linux/unistd.h>
86 #include <linux/utsname.h>
87 #include <linux/cdrom.h>
88 #include <linux/hdreg.h>
89 #include <linux/soundcard.h>
90 #include <linux/kd.h>
91 #include <linux/mtio.h>
92 #include <linux/fs.h>
93 #if defined(CONFIG_FIEMAP)
94 #include <linux/fiemap.h>
95 #endif
96 #include <linux/fb.h>
97 #include <linux/vt.h>
98 #include "linux_loop.h"
99 #include "cpu-uname.h"
100
101 #include "qemu.h"
102
103 #if defined(CONFIG_USE_NPTL)
104 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
105 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
106 #else
107 /* XXX: Hardcode the above values. */
108 #define CLONE_NPTL_FLAGS2 0
109 #endif
110
111 //#define DEBUG
112
113 //#include <linux/msdos_fs.h>
114 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
115 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
116
117
118 #undef _syscall0
119 #undef _syscall1
120 #undef _syscall2
121 #undef _syscall3
122 #undef _syscall4
123 #undef _syscall5
124 #undef _syscall6
125
126 #define _syscall0(type,name) \
127 static type name (void) \
128 { \
129 return syscall(__NR_##name); \
130 }
131
132 #define _syscall1(type,name,type1,arg1) \
133 static type name (type1 arg1) \
134 { \
135 return syscall(__NR_##name, arg1); \
136 }
137
138 #define _syscall2(type,name,type1,arg1,type2,arg2) \
139 static type name (type1 arg1,type2 arg2) \
140 { \
141 return syscall(__NR_##name, arg1, arg2); \
142 }
143
144 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
145 static type name (type1 arg1,type2 arg2,type3 arg3) \
146 { \
147 return syscall(__NR_##name, arg1, arg2, arg3); \
148 }
149
150 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
151 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
152 { \
153 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
154 }
155
156 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
157 type5,arg5) \
158 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
159 { \
160 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
161 }
162
163
164 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
165 type5,arg5,type6,arg6) \
166 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
167 type6 arg6) \
168 { \
169 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
170 }
171
172
173 #define __NR_sys_uname __NR_uname
174 #define __NR_sys_faccessat __NR_faccessat
175 #define __NR_sys_fchmodat __NR_fchmodat
176 #define __NR_sys_fchownat __NR_fchownat
177 #define __NR_sys_fstatat64 __NR_fstatat64
178 #define __NR_sys_futimesat __NR_futimesat
179 #define __NR_sys_getcwd1 __NR_getcwd
180 #define __NR_sys_getdents __NR_getdents
181 #define __NR_sys_getdents64 __NR_getdents64
182 #define __NR_sys_getpriority __NR_getpriority
183 #define __NR_sys_linkat __NR_linkat
184 #define __NR_sys_mkdirat __NR_mkdirat
185 #define __NR_sys_mknodat __NR_mknodat
186 #define __NR_sys_newfstatat __NR_newfstatat
187 #define __NR_sys_openat __NR_openat
188 #define __NR_sys_readlinkat __NR_readlinkat
189 #define __NR_sys_renameat __NR_renameat
190 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
191 #define __NR_sys_symlinkat __NR_symlinkat
192 #define __NR_sys_syslog __NR_syslog
193 #define __NR_sys_tgkill __NR_tgkill
194 #define __NR_sys_tkill __NR_tkill
195 #define __NR_sys_unlinkat __NR_unlinkat
196 #define __NR_sys_utimensat __NR_utimensat
197 #define __NR_sys_futex __NR_futex
198 #define __NR_sys_inotify_init __NR_inotify_init
199 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
200 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
201
202 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \
203 defined(__s390x__)
204 #define __NR__llseek __NR_lseek
205 #endif
206
207 #ifdef __NR_gettid
208 _syscall0(int, gettid)
209 #else
210 /* This is a replacement for the host gettid() and must return a host
211 errno. */
212 static int gettid(void) {
213 return -ENOSYS;
214 }
215 #endif
216 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
217 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
218 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
219 #endif
220 _syscall2(int, sys_getpriority, int, which, int, who);
221 #if defined(TARGET_NR__llseek) && defined(__NR_llseek)
222 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
223 loff_t *, res, uint, wh);
224 #endif
225 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
226 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
227 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
228 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
229 #endif
230 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
231 _syscall2(int,sys_tkill,int,tid,int,sig)
232 #endif
233 #ifdef __NR_exit_group
234 _syscall1(int,exit_group,int,error_code)
235 #endif
236 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
237 _syscall1(int,set_tid_address,int *,tidptr)
238 #endif
239 #if defined(CONFIG_USE_NPTL)
240 #if defined(TARGET_NR_futex) && defined(__NR_futex)
241 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
242 const struct timespec *,timeout,int *,uaddr2,int,val3)
243 #endif
244 #endif
245 #define __NR_sys_sched_getaffinity __NR_sched_getaffinity
246 _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
247 unsigned long *, user_mask_ptr);
248 #define __NR_sys_sched_setaffinity __NR_sched_setaffinity
249 _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
250 unsigned long *, user_mask_ptr);
251 _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
252 void *, arg);
253
254 static bitmask_transtbl fcntl_flags_tbl[] = {
255 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
256 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
257 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
258 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
259 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
260 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
261 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
262 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
263 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
264 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
265 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
266 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
267 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
268 #if defined(O_DIRECT)
269 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
270 #endif
271 { 0, 0, 0, 0 }
272 };
273
274 #define COPY_UTSNAME_FIELD(dest, src) \
275 do { \
276 /* __NEW_UTS_LEN doesn't include terminating null */ \
277 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
278 (dest)[__NEW_UTS_LEN] = '\0'; \
279 } while (0)
280
281 static int sys_uname(struct new_utsname *buf)
282 {
283 struct utsname uts_buf;
284
285 if (uname(&uts_buf) < 0)
286 return (-1);
287
288 /*
289 * Just in case these have some differences, we
290 * translate utsname to new_utsname (which is the
291 * struct linux kernel uses).
292 */
293
294 memset(buf, 0, sizeof(*buf));
295 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
296 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
297 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
298 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
299 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
300 #ifdef _GNU_SOURCE
301 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
302 #endif
303 return (0);
304
305 #undef COPY_UTSNAME_FIELD
306 }
307
308 static int sys_getcwd1(char *buf, size_t size)
309 {
310 if (getcwd(buf, size) == NULL) {
311 /* getcwd() sets errno */
312 return (-1);
313 }
314 return strlen(buf)+1;
315 }
316
317 #ifdef CONFIG_ATFILE
318 /*
319 * Host system seems to have atfile syscall stubs available. We
320 * now enable them one by one as specified by target syscall_nr.h.
321 */
322
323 #ifdef TARGET_NR_faccessat
324 static int sys_faccessat(int dirfd, const char *pathname, int mode)
325 {
326 return (faccessat(dirfd, pathname, mode, 0));
327 }
328 #endif
329 #ifdef TARGET_NR_fchmodat
330 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
331 {
332 return (fchmodat(dirfd, pathname, mode, 0));
333 }
334 #endif
335 #if defined(TARGET_NR_fchownat)
336 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
337 gid_t group, int flags)
338 {
339 return (fchownat(dirfd, pathname, owner, group, flags));
340 }
341 #endif
342 #ifdef __NR_fstatat64
343 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
344 int flags)
345 {
346 return (fstatat(dirfd, pathname, buf, flags));
347 }
348 #endif
349 #ifdef __NR_newfstatat
350 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
351 int flags)
352 {
353 return (fstatat(dirfd, pathname, buf, flags));
354 }
355 #endif
356 #ifdef TARGET_NR_futimesat
357 static int sys_futimesat(int dirfd, const char *pathname,
358 const struct timeval times[2])
359 {
360 return (futimesat(dirfd, pathname, times));
361 }
362 #endif
363 #ifdef TARGET_NR_linkat
364 static int sys_linkat(int olddirfd, const char *oldpath,
365 int newdirfd, const char *newpath, int flags)
366 {
367 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
368 }
369 #endif
370 #ifdef TARGET_NR_mkdirat
371 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
372 {
373 return (mkdirat(dirfd, pathname, mode));
374 }
375 #endif
376 #ifdef TARGET_NR_mknodat
377 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
378 dev_t dev)
379 {
380 return (mknodat(dirfd, pathname, mode, dev));
381 }
382 #endif
383 #ifdef TARGET_NR_openat
384 static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode)
385 {
386 /*
387 * open(2) has extra parameter 'mode' when called with
388 * flag O_CREAT.
389 */
390 if ((flags & O_CREAT) != 0) {
391 return (openat(dirfd, pathname, flags, mode));
392 }
393 return (openat(dirfd, pathname, flags));
394 }
395 #endif
396 #ifdef TARGET_NR_readlinkat
397 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
398 {
399 return (readlinkat(dirfd, pathname, buf, bufsiz));
400 }
401 #endif
402 #ifdef TARGET_NR_renameat
403 static int sys_renameat(int olddirfd, const char *oldpath,
404 int newdirfd, const char *newpath)
405 {
406 return (renameat(olddirfd, oldpath, newdirfd, newpath));
407 }
408 #endif
409 #ifdef TARGET_NR_symlinkat
410 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
411 {
412 return (symlinkat(oldpath, newdirfd, newpath));
413 }
414 #endif
415 #ifdef TARGET_NR_unlinkat
416 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
417 {
418 return (unlinkat(dirfd, pathname, flags));
419 }
420 #endif
421 #else /* !CONFIG_ATFILE */
422
423 /*
424 * Try direct syscalls instead
425 */
426 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
427 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
428 #endif
429 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
430 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
431 #endif
432 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
433 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
434 uid_t,owner,gid_t,group,int,flags)
435 #endif
436 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
437 defined(__NR_fstatat64)
438 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
439 struct stat *,buf,int,flags)
440 #endif
441 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
442 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
443 const struct timeval *,times)
444 #endif
445 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
446 defined(__NR_newfstatat)
447 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
448 struct stat *,buf,int,flags)
449 #endif
450 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
451 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
452 int,newdirfd,const char *,newpath,int,flags)
453 #endif
454 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
455 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
456 #endif
457 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
458 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
459 mode_t,mode,dev_t,dev)
460 #endif
461 #if defined(TARGET_NR_openat) && defined(__NR_openat)
462 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
463 #endif
464 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
465 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
466 char *,buf,size_t,bufsize)
467 #endif
468 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
469 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
470 int,newdirfd,const char *,newpath)
471 #endif
472 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
473 _syscall3(int,sys_symlinkat,const char *,oldpath,
474 int,newdirfd,const char *,newpath)
475 #endif
476 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
477 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
478 #endif
479
480 #endif /* CONFIG_ATFILE */
481
482 #ifdef CONFIG_UTIMENSAT
483 static int sys_utimensat(int dirfd, const char *pathname,
484 const struct timespec times[2], int flags)
485 {
486 if (pathname == NULL)
487 return futimens(dirfd, times);
488 else
489 return utimensat(dirfd, pathname, times, flags);
490 }
491 #else
492 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
493 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
494 const struct timespec *,tsp,int,flags)
495 #endif
496 #endif /* CONFIG_UTIMENSAT */
497
498 #ifdef CONFIG_INOTIFY
499 #include <sys/inotify.h>
500
501 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
502 static int sys_inotify_init(void)
503 {
504 return (inotify_init());
505 }
506 #endif
507 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
508 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
509 {
510 return (inotify_add_watch(fd, pathname, mask));
511 }
512 #endif
513 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
514 static int sys_inotify_rm_watch(int fd, int32_t wd)
515 {
516 return (inotify_rm_watch(fd, wd));
517 }
518 #endif
519 #ifdef CONFIG_INOTIFY1
520 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
521 static int sys_inotify_init1(int flags)
522 {
523 return (inotify_init1(flags));
524 }
525 #endif
526 #endif
527 #else
528 /* Userspace can usually survive runtime without inotify */
529 #undef TARGET_NR_inotify_init
530 #undef TARGET_NR_inotify_init1
531 #undef TARGET_NR_inotify_add_watch
532 #undef TARGET_NR_inotify_rm_watch
533 #endif /* CONFIG_INOTIFY */
534
535 #if defined(TARGET_NR_ppoll)
536 #ifndef __NR_ppoll
537 # define __NR_ppoll -1
538 #endif
539 #define __NR_sys_ppoll __NR_ppoll
540 _syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
541 struct timespec *, timeout, const __sigset_t *, sigmask,
542 size_t, sigsetsize)
543 #endif
544
545 #if defined(TARGET_NR_pselect6)
546 #ifndef __NR_pselect6
547 # define __NR_pselect6 -1
548 #endif
549 #define __NR_sys_pselect6 __NR_pselect6
550 _syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds,
551 fd_set *, exceptfds, struct timespec *, timeout, void *, sig);
552 #endif
553
554 #if defined(TARGET_NR_prlimit64)
555 #ifndef __NR_prlimit64
556 # define __NR_prlimit64 -1
557 #endif
558 #define __NR_sys_prlimit64 __NR_prlimit64
559 /* The glibc rlimit structure may not be that used by the underlying syscall */
560 struct host_rlimit64 {
561 uint64_t rlim_cur;
562 uint64_t rlim_max;
563 };
564 _syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
565 const struct host_rlimit64 *, new_limit,
566 struct host_rlimit64 *, old_limit)
567 #endif
568
569 extern int personality(int);
570 extern int flock(int, int);
571 extern int setfsuid(int);
572 extern int setfsgid(int);
573 extern int setgroups(int, gid_t *);
574
575 /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
576 #ifdef TARGET_ARM
577 static inline int regpairs_aligned(void *cpu_env) {
578 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
579 }
580 #elif defined(TARGET_MIPS)
581 static inline int regpairs_aligned(void *cpu_env) { return 1; }
582 #else
583 static inline int regpairs_aligned(void *cpu_env) { return 0; }
584 #endif
585
586 #define ERRNO_TABLE_SIZE 1200
587
588 /* target_to_host_errno_table[] is initialized from
589 * host_to_target_errno_table[] in syscall_init(). */
590 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
591 };
592
593 /*
594 * This list is the union of errno values overridden in asm-<arch>/errno.h
595 * minus the errnos that are not actually generic to all archs.
596 */
597 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
598 [EIDRM] = TARGET_EIDRM,
599 [ECHRNG] = TARGET_ECHRNG,
600 [EL2NSYNC] = TARGET_EL2NSYNC,
601 [EL3HLT] = TARGET_EL3HLT,
602 [EL3RST] = TARGET_EL3RST,
603 [ELNRNG] = TARGET_ELNRNG,
604 [EUNATCH] = TARGET_EUNATCH,
605 [ENOCSI] = TARGET_ENOCSI,
606 [EL2HLT] = TARGET_EL2HLT,
607 [EDEADLK] = TARGET_EDEADLK,
608 [ENOLCK] = TARGET_ENOLCK,
609 [EBADE] = TARGET_EBADE,
610 [EBADR] = TARGET_EBADR,
611 [EXFULL] = TARGET_EXFULL,
612 [ENOANO] = TARGET_ENOANO,
613 [EBADRQC] = TARGET_EBADRQC,
614 [EBADSLT] = TARGET_EBADSLT,
615 [EBFONT] = TARGET_EBFONT,
616 [ENOSTR] = TARGET_ENOSTR,
617 [ENODATA] = TARGET_ENODATA,
618 [ETIME] = TARGET_ETIME,
619 [ENOSR] = TARGET_ENOSR,
620 [ENONET] = TARGET_ENONET,
621 [ENOPKG] = TARGET_ENOPKG,
622 [EREMOTE] = TARGET_EREMOTE,
623 [ENOLINK] = TARGET_ENOLINK,
624 [EADV] = TARGET_EADV,
625 [ESRMNT] = TARGET_ESRMNT,
626 [ECOMM] = TARGET_ECOMM,
627 [EPROTO] = TARGET_EPROTO,
628 [EDOTDOT] = TARGET_EDOTDOT,
629 [EMULTIHOP] = TARGET_EMULTIHOP,
630 [EBADMSG] = TARGET_EBADMSG,
631 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
632 [EOVERFLOW] = TARGET_EOVERFLOW,
633 [ENOTUNIQ] = TARGET_ENOTUNIQ,
634 [EBADFD] = TARGET_EBADFD,
635 [EREMCHG] = TARGET_EREMCHG,
636 [ELIBACC] = TARGET_ELIBACC,
637 [ELIBBAD] = TARGET_ELIBBAD,
638 [ELIBSCN] = TARGET_ELIBSCN,
639 [ELIBMAX] = TARGET_ELIBMAX,
640 [ELIBEXEC] = TARGET_ELIBEXEC,
641 [EILSEQ] = TARGET_EILSEQ,
642 [ENOSYS] = TARGET_ENOSYS,
643 [ELOOP] = TARGET_ELOOP,
644 [ERESTART] = TARGET_ERESTART,
645 [ESTRPIPE] = TARGET_ESTRPIPE,
646 [ENOTEMPTY] = TARGET_ENOTEMPTY,
647 [EUSERS] = TARGET_EUSERS,
648 [ENOTSOCK] = TARGET_ENOTSOCK,
649 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
650 [EMSGSIZE] = TARGET_EMSGSIZE,
651 [EPROTOTYPE] = TARGET_EPROTOTYPE,
652 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
653 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
654 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
655 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
656 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
657 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
658 [EADDRINUSE] = TARGET_EADDRINUSE,
659 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
660 [ENETDOWN] = TARGET_ENETDOWN,
661 [ENETUNREACH] = TARGET_ENETUNREACH,
662 [ENETRESET] = TARGET_ENETRESET,
663 [ECONNABORTED] = TARGET_ECONNABORTED,
664 [ECONNRESET] = TARGET_ECONNRESET,
665 [ENOBUFS] = TARGET_ENOBUFS,
666 [EISCONN] = TARGET_EISCONN,
667 [ENOTCONN] = TARGET_ENOTCONN,
668 [EUCLEAN] = TARGET_EUCLEAN,
669 [ENOTNAM] = TARGET_ENOTNAM,
670 [ENAVAIL] = TARGET_ENAVAIL,
671 [EISNAM] = TARGET_EISNAM,
672 [EREMOTEIO] = TARGET_EREMOTEIO,
673 [ESHUTDOWN] = TARGET_ESHUTDOWN,
674 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
675 [ETIMEDOUT] = TARGET_ETIMEDOUT,
676 [ECONNREFUSED] = TARGET_ECONNREFUSED,
677 [EHOSTDOWN] = TARGET_EHOSTDOWN,
678 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
679 [EALREADY] = TARGET_EALREADY,
680 [EINPROGRESS] = TARGET_EINPROGRESS,
681 [ESTALE] = TARGET_ESTALE,
682 [ECANCELED] = TARGET_ECANCELED,
683 [ENOMEDIUM] = TARGET_ENOMEDIUM,
684 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
685 #ifdef ENOKEY
686 [ENOKEY] = TARGET_ENOKEY,
687 #endif
688 #ifdef EKEYEXPIRED
689 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
690 #endif
691 #ifdef EKEYREVOKED
692 [EKEYREVOKED] = TARGET_EKEYREVOKED,
693 #endif
694 #ifdef EKEYREJECTED
695 [EKEYREJECTED] = TARGET_EKEYREJECTED,
696 #endif
697 #ifdef EOWNERDEAD
698 [EOWNERDEAD] = TARGET_EOWNERDEAD,
699 #endif
700 #ifdef ENOTRECOVERABLE
701 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
702 #endif
703 };
704
705 static inline int host_to_target_errno(int err)
706 {
707 if(host_to_target_errno_table[err])
708 return host_to_target_errno_table[err];
709 return err;
710 }
711
712 static inline int target_to_host_errno(int err)
713 {
714 if (target_to_host_errno_table[err])
715 return target_to_host_errno_table[err];
716 return err;
717 }
718
719 static inline abi_long get_errno(abi_long ret)
720 {
721 if (ret == -1)
722 return -host_to_target_errno(errno);
723 else
724 return ret;
725 }
726
727 static inline int is_error(abi_long ret)
728 {
729 return (abi_ulong)ret >= (abi_ulong)(-4096);
730 }
731
732 char *target_strerror(int err)
733 {
734 return strerror(target_to_host_errno(err));
735 }
736
737 static abi_ulong target_brk;
738 static abi_ulong target_original_brk;
739 static abi_ulong brk_page;
740
741 void target_set_brk(abi_ulong new_brk)
742 {
743 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
744 brk_page = HOST_PAGE_ALIGN(target_brk);
745 }
746
747 //#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
748 #define DEBUGF_BRK(message, args...)
749
750 /* do_brk() must return target values and target errnos. */
751 abi_long do_brk(abi_ulong new_brk)
752 {
753 abi_long mapped_addr;
754 int new_alloc_size;
755
756 DEBUGF_BRK("do_brk(%#010x) -> ", new_brk);
757
758 if (!new_brk) {
759 DEBUGF_BRK("%#010x (!new_brk)\n", target_brk);
760 return target_brk;
761 }
762 if (new_brk < target_original_brk) {
763 DEBUGF_BRK("%#010x (new_brk < target_original_brk)\n", target_brk);
764 return target_brk;
765 }
766
767 /* If the new brk is less than the highest page reserved to the
768 * target heap allocation, set it and we're almost done... */
769 if (new_brk <= brk_page) {
770 /* Heap contents are initialized to zero, as for anonymous
771 * mapped pages. */
772 if (new_brk > target_brk) {
773 memset(g2h(target_brk), 0, new_brk - target_brk);
774 }
775 target_brk = new_brk;
776 DEBUGF_BRK("%#010x (new_brk <= brk_page)\n", target_brk);
777 return target_brk;
778 }
779
780 /* We need to allocate more memory after the brk... Note that
781 * we don't use MAP_FIXED because that will map over the top of
782 * any existing mapping (like the one with the host libc or qemu
783 * itself); instead we treat "mapped but at wrong address" as
784 * a failure and unmap again.
785 */
786 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
787 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
788 PROT_READ|PROT_WRITE,
789 MAP_ANON|MAP_PRIVATE, 0, 0));
790
791 if (mapped_addr == brk_page) {
792 /* Heap contents are initialized to zero, as for anonymous
793 * mapped pages. Technically the new pages are already
794 * initialized to zero since they *are* anonymous mapped
795 * pages, however we have to take care with the contents that
796 * come from the remaining part of the previous page: it may
797 * contains garbage data due to a previous heap usage (grown
798 * then shrunken). */
799 memset(g2h(target_brk), 0, brk_page - target_brk);
800
801 target_brk = new_brk;
802 brk_page = HOST_PAGE_ALIGN(target_brk);
803 DEBUGF_BRK("%#010x (mapped_addr == brk_page)\n", target_brk);
804 return target_brk;
805 } else if (mapped_addr != -1) {
806 /* Mapped but at wrong address, meaning there wasn't actually
807 * enough space for this brk.
808 */
809 target_munmap(mapped_addr, new_alloc_size);
810 mapped_addr = -1;
811 DEBUGF_BRK("%#010x (mapped_addr != -1)\n", target_brk);
812 }
813 else {
814 DEBUGF_BRK("%#010x (otherwise)\n", target_brk);
815 }
816
817 #if defined(TARGET_ALPHA)
818 /* We (partially) emulate OSF/1 on Alpha, which requires we
819 return a proper errno, not an unchanged brk value. */
820 return -TARGET_ENOMEM;
821 #endif
822 /* For everything else, return the previous break. */
823 return target_brk;
824 }
825
826 static inline abi_long copy_from_user_fdset(fd_set *fds,
827 abi_ulong target_fds_addr,
828 int n)
829 {
830 int i, nw, j, k;
831 abi_ulong b, *target_fds;
832
833 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
834 if (!(target_fds = lock_user(VERIFY_READ,
835 target_fds_addr,
836 sizeof(abi_ulong) * nw,
837 1)))
838 return -TARGET_EFAULT;
839
840 FD_ZERO(fds);
841 k = 0;
842 for (i = 0; i < nw; i++) {
843 /* grab the abi_ulong */
844 __get_user(b, &target_fds[i]);
845 for (j = 0; j < TARGET_ABI_BITS; j++) {
846 /* check the bit inside the abi_ulong */
847 if ((b >> j) & 1)
848 FD_SET(k, fds);
849 k++;
850 }
851 }
852
853 unlock_user(target_fds, target_fds_addr, 0);
854
855 return 0;
856 }
857
858 static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
859 abi_ulong target_fds_addr,
860 int n)
861 {
862 if (target_fds_addr) {
863 if (copy_from_user_fdset(fds, target_fds_addr, n))
864 return -TARGET_EFAULT;
865 *fds_ptr = fds;
866 } else {
867 *fds_ptr = NULL;
868 }
869 return 0;
870 }
871
872 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
873 const fd_set *fds,
874 int n)
875 {
876 int i, nw, j, k;
877 abi_long v;
878 abi_ulong *target_fds;
879
880 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
881 if (!(target_fds = lock_user(VERIFY_WRITE,
882 target_fds_addr,
883 sizeof(abi_ulong) * nw,
884 0)))
885 return -TARGET_EFAULT;
886
887 k = 0;
888 for (i = 0; i < nw; i++) {
889 v = 0;
890 for (j = 0; j < TARGET_ABI_BITS; j++) {
891 v |= ((FD_ISSET(k, fds) != 0) << j);
892 k++;
893 }
894 __put_user(v, &target_fds[i]);
895 }
896
897 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
898
899 return 0;
900 }
901
902 #if defined(__alpha__)
903 #define HOST_HZ 1024
904 #else
905 #define HOST_HZ 100
906 #endif
907
908 static inline abi_long host_to_target_clock_t(long ticks)
909 {
910 #if HOST_HZ == TARGET_HZ
911 return ticks;
912 #else
913 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
914 #endif
915 }
916
917 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
918 const struct rusage *rusage)
919 {
920 struct target_rusage *target_rusage;
921
922 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
923 return -TARGET_EFAULT;
924 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
925 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
926 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
927 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
928 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
929 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
930 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
931 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
932 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
933 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
934 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
935 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
936 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
937 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
938 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
939 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
940 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
941 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
942 unlock_user_struct(target_rusage, target_addr, 1);
943
944 return 0;
945 }
946
947 static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
948 {
949 abi_ulong target_rlim_swap;
950 rlim_t result;
951
952 target_rlim_swap = tswapal(target_rlim);
953 if (target_rlim_swap == TARGET_RLIM_INFINITY)
954 return RLIM_INFINITY;
955
956 result = target_rlim_swap;
957 if (target_rlim_swap != (rlim_t)result)
958 return RLIM_INFINITY;
959
960 return result;
961 }
962
963 static inline abi_ulong host_to_target_rlim(rlim_t rlim)
964 {
965 abi_ulong target_rlim_swap;
966 abi_ulong result;
967
968 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
969 target_rlim_swap = TARGET_RLIM_INFINITY;
970 else
971 target_rlim_swap = rlim;
972 result = tswapal(target_rlim_swap);
973
974 return result;
975 }
976
977 static inline int target_to_host_resource(int code)
978 {
979 switch (code) {
980 case TARGET_RLIMIT_AS:
981 return RLIMIT_AS;
982 case TARGET_RLIMIT_CORE:
983 return RLIMIT_CORE;
984 case TARGET_RLIMIT_CPU:
985 return RLIMIT_CPU;
986 case TARGET_RLIMIT_DATA:
987 return RLIMIT_DATA;
988 case TARGET_RLIMIT_FSIZE:
989 return RLIMIT_FSIZE;
990 case TARGET_RLIMIT_LOCKS:
991 return RLIMIT_LOCKS;
992 case TARGET_RLIMIT_MEMLOCK:
993 return RLIMIT_MEMLOCK;
994 case TARGET_RLIMIT_MSGQUEUE:
995 return RLIMIT_MSGQUEUE;
996 case TARGET_RLIMIT_NICE:
997 return RLIMIT_NICE;
998 case TARGET_RLIMIT_NOFILE:
999 return RLIMIT_NOFILE;
1000 case TARGET_RLIMIT_NPROC:
1001 return RLIMIT_NPROC;
1002 case TARGET_RLIMIT_RSS:
1003 return RLIMIT_RSS;
1004 case TARGET_RLIMIT_RTPRIO:
1005 return RLIMIT_RTPRIO;
1006 case TARGET_RLIMIT_SIGPENDING:
1007 return RLIMIT_SIGPENDING;
1008 case TARGET_RLIMIT_STACK:
1009 return RLIMIT_STACK;
1010 default:
1011 return code;
1012 }
1013 }
1014
1015 static inline abi_long copy_from_user_timeval(struct timeval *tv,
1016 abi_ulong target_tv_addr)
1017 {
1018 struct target_timeval *target_tv;
1019
1020 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
1021 return -TARGET_EFAULT;
1022
1023 __get_user(tv->tv_sec, &target_tv->tv_sec);
1024 __get_user(tv->tv_usec, &target_tv->tv_usec);
1025
1026 unlock_user_struct(target_tv, target_tv_addr, 0);
1027
1028 return 0;
1029 }
1030
1031 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1032 const struct timeval *tv)
1033 {
1034 struct target_timeval *target_tv;
1035
1036 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
1037 return -TARGET_EFAULT;
1038
1039 __put_user(tv->tv_sec, &target_tv->tv_sec);
1040 __put_user(tv->tv_usec, &target_tv->tv_usec);
1041
1042 unlock_user_struct(target_tv, target_tv_addr, 1);
1043
1044 return 0;
1045 }
1046
1047 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1048 #include <mqueue.h>
1049
1050 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1051 abi_ulong target_mq_attr_addr)
1052 {
1053 struct target_mq_attr *target_mq_attr;
1054
1055 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1056 target_mq_attr_addr, 1))
1057 return -TARGET_EFAULT;
1058
1059 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1060 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1061 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1062 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1063
1064 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1065
1066 return 0;
1067 }
1068
1069 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1070 const struct mq_attr *attr)
1071 {
1072 struct target_mq_attr *target_mq_attr;
1073
1074 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1075 target_mq_attr_addr, 0))
1076 return -TARGET_EFAULT;
1077
1078 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1079 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1080 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1081 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1082
1083 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1084
1085 return 0;
1086 }
1087 #endif
1088
1089 #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
1090 /* do_select() must return target values and target errnos. */
1091 static abi_long do_select(int n,
1092 abi_ulong rfd_addr, abi_ulong wfd_addr,
1093 abi_ulong efd_addr, abi_ulong target_tv_addr)
1094 {
1095 fd_set rfds, wfds, efds;
1096 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
1097 struct timeval tv, *tv_ptr;
1098 abi_long ret;
1099
1100 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1101 if (ret) {
1102 return ret;
1103 }
1104 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1105 if (ret) {
1106 return ret;
1107 }
1108 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1109 if (ret) {
1110 return ret;
1111 }
1112
1113 if (target_tv_addr) {
1114 if (copy_from_user_timeval(&tv, target_tv_addr))
1115 return -TARGET_EFAULT;
1116 tv_ptr = &tv;
1117 } else {
1118 tv_ptr = NULL;
1119 }
1120
1121 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
1122
1123 if (!is_error(ret)) {
1124 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1125 return -TARGET_EFAULT;
1126 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1127 return -TARGET_EFAULT;
1128 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1129 return -TARGET_EFAULT;
1130
1131 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
1132 return -TARGET_EFAULT;
1133 }
1134
1135 return ret;
1136 }
1137 #endif
1138
1139 static abi_long do_pipe2(int host_pipe[], int flags)
1140 {
1141 #ifdef CONFIG_PIPE2
1142 return pipe2(host_pipe, flags);
1143 #else
1144 return -ENOSYS;
1145 #endif
1146 }
1147
1148 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1149 int flags, int is_pipe2)
1150 {
1151 int host_pipe[2];
1152 abi_long ret;
1153 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1154
1155 if (is_error(ret))
1156 return get_errno(ret);
1157
1158 /* Several targets have special calling conventions for the original
1159 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1160 if (!is_pipe2) {
1161 #if defined(TARGET_ALPHA)
1162 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1163 return host_pipe[0];
1164 #elif defined(TARGET_MIPS)
1165 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1166 return host_pipe[0];
1167 #elif defined(TARGET_SH4)
1168 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1169 return host_pipe[0];
1170 #endif
1171 }
1172
1173 if (put_user_s32(host_pipe[0], pipedes)
1174 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1175 return -TARGET_EFAULT;
1176 return get_errno(ret);
1177 }
1178
1179 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1180 abi_ulong target_addr,
1181 socklen_t len)
1182 {
1183 struct target_ip_mreqn *target_smreqn;
1184
1185 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1186 if (!target_smreqn)
1187 return -TARGET_EFAULT;
1188 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1189 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1190 if (len == sizeof(struct target_ip_mreqn))
1191 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
1192 unlock_user(target_smreqn, target_addr, 0);
1193
1194 return 0;
1195 }
1196
1197 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1198 abi_ulong target_addr,
1199 socklen_t len)
1200 {
1201 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1202 sa_family_t sa_family;
1203 struct target_sockaddr *target_saddr;
1204
1205 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1206 if (!target_saddr)
1207 return -TARGET_EFAULT;
1208
1209 sa_family = tswap16(target_saddr->sa_family);
1210
1211 /* Oops. The caller might send a incomplete sun_path; sun_path
1212 * must be terminated by \0 (see the manual page), but
1213 * unfortunately it is quite common to specify sockaddr_un
1214 * length as "strlen(x->sun_path)" while it should be
1215 * "strlen(...) + 1". We'll fix that here if needed.
1216 * Linux kernel has a similar feature.
1217 */
1218
1219 if (sa_family == AF_UNIX) {
1220 if (len < unix_maxlen && len > 0) {
1221 char *cp = (char*)target_saddr;
1222
1223 if ( cp[len-1] && !cp[len] )
1224 len++;
1225 }
1226 if (len > unix_maxlen)
1227 len = unix_maxlen;
1228 }
1229
1230 memcpy(addr, target_saddr, len);
1231 addr->sa_family = sa_family;
1232 unlock_user(target_saddr, target_addr, 0);
1233
1234 return 0;
1235 }
1236
1237 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1238 struct sockaddr *addr,
1239 socklen_t len)
1240 {
1241 struct target_sockaddr *target_saddr;
1242
1243 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1244 if (!target_saddr)
1245 return -TARGET_EFAULT;
1246 memcpy(target_saddr, addr, len);
1247 target_saddr->sa_family = tswap16(addr->sa_family);
1248 unlock_user(target_saddr, target_addr, len);
1249
1250 return 0;
1251 }
1252
1253 /* ??? Should this also swap msgh->name? */
1254 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1255 struct target_msghdr *target_msgh)
1256 {
1257 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1258 abi_long msg_controllen;
1259 abi_ulong target_cmsg_addr;
1260 struct target_cmsghdr *target_cmsg;
1261 socklen_t space = 0;
1262
1263 msg_controllen = tswapal(target_msgh->msg_controllen);
1264 if (msg_controllen < sizeof (struct target_cmsghdr))
1265 goto the_end;
1266 target_cmsg_addr = tswapal(target_msgh->msg_control);
1267 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1268 if (!target_cmsg)
1269 return -TARGET_EFAULT;
1270
1271 while (cmsg && target_cmsg) {
1272 void *data = CMSG_DATA(cmsg);
1273 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1274
1275 int len = tswapal(target_cmsg->cmsg_len)
1276 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1277
1278 space += CMSG_SPACE(len);
1279 if (space > msgh->msg_controllen) {
1280 space -= CMSG_SPACE(len);
1281 gemu_log("Host cmsg overflow\n");
1282 break;
1283 }
1284
1285 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1286 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1287 cmsg->cmsg_len = CMSG_LEN(len);
1288
1289 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1290 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1291 memcpy(data, target_data, len);
1292 } else {
1293 int *fd = (int *)data;
1294 int *target_fd = (int *)target_data;
1295 int i, numfds = len / sizeof(int);
1296
1297 for (i = 0; i < numfds; i++)
1298 fd[i] = tswap32(target_fd[i]);
1299 }
1300
1301 cmsg = CMSG_NXTHDR(msgh, cmsg);
1302 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1303 }
1304 unlock_user(target_cmsg, target_cmsg_addr, 0);
1305 the_end:
1306 msgh->msg_controllen = space;
1307 return 0;
1308 }
1309
1310 /* ??? Should this also swap msgh->name? */
1311 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1312 struct msghdr *msgh)
1313 {
1314 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1315 abi_long msg_controllen;
1316 abi_ulong target_cmsg_addr;
1317 struct target_cmsghdr *target_cmsg;
1318 socklen_t space = 0;
1319
1320 msg_controllen = tswapal(target_msgh->msg_controllen);
1321 if (msg_controllen < sizeof (struct target_cmsghdr))
1322 goto the_end;
1323 target_cmsg_addr = tswapal(target_msgh->msg_control);
1324 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1325 if (!target_cmsg)
1326 return -TARGET_EFAULT;
1327
1328 while (cmsg && target_cmsg) {
1329 void *data = CMSG_DATA(cmsg);
1330 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1331
1332 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1333
1334 space += TARGET_CMSG_SPACE(len);
1335 if (space > msg_controllen) {
1336 space -= TARGET_CMSG_SPACE(len);
1337 gemu_log("Target cmsg overflow\n");
1338 break;
1339 }
1340
1341 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1342 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1343 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));
1344
1345 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1346 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1347 memcpy(target_data, data, len);
1348 } else {
1349 int *fd = (int *)data;
1350 int *target_fd = (int *)target_data;
1351 int i, numfds = len / sizeof(int);
1352
1353 for (i = 0; i < numfds; i++)
1354 target_fd[i] = tswap32(fd[i]);
1355 }
1356
1357 cmsg = CMSG_NXTHDR(msgh, cmsg);
1358 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1359 }
1360 unlock_user(target_cmsg, target_cmsg_addr, space);
1361 the_end:
1362 target_msgh->msg_controllen = tswapal(space);
1363 return 0;
1364 }
1365
1366 /* do_setsockopt() Must return target values and target errnos. */
1367 static abi_long do_setsockopt(int sockfd, int level, int optname,
1368 abi_ulong optval_addr, socklen_t optlen)
1369 {
1370 abi_long ret;
1371 int val;
1372 struct ip_mreqn *ip_mreq;
1373 struct ip_mreq_source *ip_mreq_source;
1374
1375 switch(level) {
1376 case SOL_TCP:
1377 /* TCP options all take an 'int' value. */
1378 if (optlen < sizeof(uint32_t))
1379 return -TARGET_EINVAL;
1380
1381 if (get_user_u32(val, optval_addr))
1382 return -TARGET_EFAULT;
1383 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1384 break;
1385 case SOL_IP:
1386 switch(optname) {
1387 case IP_TOS:
1388 case IP_TTL:
1389 case IP_HDRINCL:
1390 case IP_ROUTER_ALERT:
1391 case IP_RECVOPTS:
1392 case IP_RETOPTS:
1393 case IP_PKTINFO:
1394 case IP_MTU_DISCOVER:
1395 case IP_RECVERR:
1396 case IP_RECVTOS:
1397 #ifdef IP_FREEBIND
1398 case IP_FREEBIND:
1399 #endif
1400 case IP_MULTICAST_TTL:
1401 case IP_MULTICAST_LOOP:
1402 val = 0;
1403 if (optlen >= sizeof(uint32_t)) {
1404 if (get_user_u32(val, optval_addr))
1405 return -TARGET_EFAULT;
1406 } else if (optlen >= 1) {
1407 if (get_user_u8(val, optval_addr))
1408 return -TARGET_EFAULT;
1409 }
1410 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1411 break;
1412 case IP_ADD_MEMBERSHIP:
1413 case IP_DROP_MEMBERSHIP:
1414 if (optlen < sizeof (struct target_ip_mreq) ||
1415 optlen > sizeof (struct target_ip_mreqn))
1416 return -TARGET_EINVAL;
1417
1418 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1419 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1420 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1421 break;
1422
1423 case IP_BLOCK_SOURCE:
1424 case IP_UNBLOCK_SOURCE:
1425 case IP_ADD_SOURCE_MEMBERSHIP:
1426 case IP_DROP_SOURCE_MEMBERSHIP:
1427 if (optlen != sizeof (struct target_ip_mreq_source))
1428 return -TARGET_EINVAL;
1429
1430 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1431 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1432 unlock_user (ip_mreq_source, optval_addr, 0);
1433 break;
1434
1435 default:
1436 goto unimplemented;
1437 }
1438 break;
1439 case TARGET_SOL_SOCKET:
1440 switch (optname) {
1441 /* Options with 'int' argument. */
1442 case TARGET_SO_DEBUG:
1443 optname = SO_DEBUG;
1444 break;
1445 case TARGET_SO_REUSEADDR:
1446 optname = SO_REUSEADDR;
1447 break;
1448 case TARGET_SO_TYPE:
1449 optname = SO_TYPE;
1450 break;
1451 case TARGET_SO_ERROR:
1452 optname = SO_ERROR;
1453 break;
1454 case TARGET_SO_DONTROUTE:
1455 optname = SO_DONTROUTE;
1456 break;
1457 case TARGET_SO_BROADCAST:
1458 optname = SO_BROADCAST;
1459 break;
1460 case TARGET_SO_SNDBUF:
1461 optname = SO_SNDBUF;
1462 break;
1463 case TARGET_SO_RCVBUF:
1464 optname = SO_RCVBUF;
1465 break;
1466 case TARGET_SO_KEEPALIVE:
1467 optname = SO_KEEPALIVE;
1468 break;
1469 case TARGET_SO_OOBINLINE:
1470 optname = SO_OOBINLINE;
1471 break;
1472 case TARGET_SO_NO_CHECK:
1473 optname = SO_NO_CHECK;
1474 break;
1475 case TARGET_SO_PRIORITY:
1476 optname = SO_PRIORITY;
1477 break;
1478 #ifdef SO_BSDCOMPAT
1479 case TARGET_SO_BSDCOMPAT:
1480 optname = SO_BSDCOMPAT;
1481 break;
1482 #endif
1483 case TARGET_SO_PASSCRED:
1484 optname = SO_PASSCRED;
1485 break;
1486 case TARGET_SO_TIMESTAMP:
1487 optname = SO_TIMESTAMP;
1488 break;
1489 case TARGET_SO_RCVLOWAT:
1490 optname = SO_RCVLOWAT;
1491 break;
1492 case TARGET_SO_RCVTIMEO:
1493 optname = SO_RCVTIMEO;
1494 break;
1495 case TARGET_SO_SNDTIMEO:
1496 optname = SO_SNDTIMEO;
1497 break;
1498 break;
1499 default:
1500 goto unimplemented;
1501 }
1502 if (optlen < sizeof(uint32_t))
1503 return -TARGET_EINVAL;
1504
1505 if (get_user_u32(val, optval_addr))
1506 return -TARGET_EFAULT;
1507 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1508 break;
1509 default:
1510 unimplemented:
1511 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
1512 ret = -TARGET_ENOPROTOOPT;
1513 }
1514 return ret;
1515 }
1516
1517 /* do_getsockopt() Must return target values and target errnos. */
1518 static abi_long do_getsockopt(int sockfd, int level, int optname,
1519 abi_ulong optval_addr, abi_ulong optlen)
1520 {
1521 abi_long ret;
1522 int len, val;
1523 socklen_t lv;
1524
1525 switch(level) {
1526 case TARGET_SOL_SOCKET:
1527 level = SOL_SOCKET;
1528 switch (optname) {
1529 /* These don't just return a single integer */
1530 case TARGET_SO_LINGER:
1531 case TARGET_SO_RCVTIMEO:
1532 case TARGET_SO_SNDTIMEO:
1533 case TARGET_SO_PEERCRED:
1534 case TARGET_SO_PEERNAME:
1535 goto unimplemented;
1536 /* Options with 'int' argument. */
1537 case TARGET_SO_DEBUG:
1538 optname = SO_DEBUG;
1539 goto int_case;
1540 case TARGET_SO_REUSEADDR:
1541 optname = SO_REUSEADDR;
1542 goto int_case;
1543 case TARGET_SO_TYPE:
1544 optname = SO_TYPE;
1545 goto int_case;
1546 case TARGET_SO_ERROR:
1547 optname = SO_ERROR;
1548 goto int_case;
1549 case TARGET_SO_DONTROUTE:
1550 optname = SO_DONTROUTE;
1551 goto int_case;
1552 case TARGET_SO_BROADCAST:
1553 optname = SO_BROADCAST;
1554 goto int_case;
1555 case TARGET_SO_SNDBUF:
1556 optname = SO_SNDBUF;
1557 goto int_case;
1558 case TARGET_SO_RCVBUF:
1559 optname = SO_RCVBUF;
1560 goto int_case;
1561 case TARGET_SO_KEEPALIVE:
1562 optname = SO_KEEPALIVE;
1563 goto int_case;
1564 case TARGET_SO_OOBINLINE:
1565 optname = SO_OOBINLINE;
1566 goto int_case;
1567 case TARGET_SO_NO_CHECK:
1568 optname = SO_NO_CHECK;
1569 goto int_case;
1570 case TARGET_SO_PRIORITY:
1571 optname = SO_PRIORITY;
1572 goto int_case;
1573 #ifdef SO_BSDCOMPAT
1574 case TARGET_SO_BSDCOMPAT:
1575 optname = SO_BSDCOMPAT;
1576 goto int_case;
1577 #endif
1578 case TARGET_SO_PASSCRED:
1579 optname = SO_PASSCRED;
1580 goto int_case;
1581 case TARGET_SO_TIMESTAMP:
1582 optname = SO_TIMESTAMP;
1583 goto int_case;
1584 case TARGET_SO_RCVLOWAT:
1585 optname = SO_RCVLOWAT;
1586 goto int_case;
1587 default:
1588 goto int_case;
1589 }
1590 break;
1591 case SOL_TCP:
1592 /* TCP options all take an 'int' value. */
1593 int_case:
1594 if (get_user_u32(len, optlen))
1595 return -TARGET_EFAULT;
1596 if (len < 0)
1597 return -TARGET_EINVAL;
1598 lv = sizeof(lv);
1599 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1600 if (ret < 0)
1601 return ret;
1602 if (len > lv)
1603 len = lv;
1604 if (len == 4) {
1605 if (put_user_u32(val, optval_addr))
1606 return -TARGET_EFAULT;
1607 } else {
1608 if (put_user_u8(val, optval_addr))
1609 return -TARGET_EFAULT;
1610 }
1611 if (put_user_u32(len, optlen))
1612 return -TARGET_EFAULT;
1613 break;
1614 case SOL_IP:
1615 switch(optname) {
1616 case IP_TOS:
1617 case IP_TTL:
1618 case IP_HDRINCL:
1619 case IP_ROUTER_ALERT:
1620 case IP_RECVOPTS:
1621 case IP_RETOPTS:
1622 case IP_PKTINFO:
1623 case IP_MTU_DISCOVER:
1624 case IP_RECVERR:
1625 case IP_RECVTOS:
1626 #ifdef IP_FREEBIND
1627 case IP_FREEBIND:
1628 #endif
1629 case IP_MULTICAST_TTL:
1630 case IP_MULTICAST_LOOP:
1631 if (get_user_u32(len, optlen))
1632 return -TARGET_EFAULT;
1633 if (len < 0)
1634 return -TARGET_EINVAL;
1635 lv = sizeof(lv);
1636 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1637 if (ret < 0)
1638 return ret;
1639 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1640 len = 1;
1641 if (put_user_u32(len, optlen)
1642 || put_user_u8(val, optval_addr))
1643 return -TARGET_EFAULT;
1644 } else {
1645 if (len > sizeof(int))
1646 len = sizeof(int);
1647 if (put_user_u32(len, optlen)
1648 || put_user_u32(val, optval_addr))
1649 return -TARGET_EFAULT;
1650 }
1651 break;
1652 default:
1653 ret = -TARGET_ENOPROTOOPT;
1654 break;
1655 }
1656 break;
1657 default:
1658 unimplemented:
1659 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1660 level, optname);
1661 ret = -TARGET_EOPNOTSUPP;
1662 break;
1663 }
1664 return ret;
1665 }
1666
1667 /* FIXME
1668 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1669 * other lock functions have a return code of 0 for failure.
1670 */
1671 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1672 int count, int copy)
1673 {
1674 struct target_iovec *target_vec;
1675 abi_ulong base;
1676 int i;
1677
1678 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1679 if (!target_vec)
1680 return -TARGET_EFAULT;
1681 for(i = 0;i < count; i++) {
1682 base = tswapal(target_vec[i].iov_base);
1683 vec[i].iov_len = tswapal(target_vec[i].iov_len);
1684 if (vec[i].iov_len != 0) {
1685 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1686 /* Don't check lock_user return value. We must call writev even
1687 if a element has invalid base address. */
1688 } else {
1689 /* zero length pointer is ignored */
1690 vec[i].iov_base = NULL;
1691 }
1692 }
1693 unlock_user (target_vec, target_addr, 0);
1694 return 0;
1695 }
1696
1697 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1698 int count, int copy)
1699 {
1700 struct target_iovec *target_vec;
1701 abi_ulong base;
1702 int i;
1703
1704 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1705 if (!target_vec)
1706 return -TARGET_EFAULT;
1707 for(i = 0;i < count; i++) {
1708 if (target_vec[i].iov_base) {
1709 base = tswapal(target_vec[i].iov_base);
1710 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1711 }
1712 }
1713 unlock_user (target_vec, target_addr, 0);
1714
1715 return 0;
1716 }
1717
1718 /* do_socket() Must return target values and target errnos. */
1719 static abi_long do_socket(int domain, int type, int protocol)
1720 {
1721 #if defined(TARGET_MIPS)
1722 switch(type) {
1723 case TARGET_SOCK_DGRAM:
1724 type = SOCK_DGRAM;
1725 break;
1726 case TARGET_SOCK_STREAM:
1727 type = SOCK_STREAM;
1728 break;
1729 case TARGET_SOCK_RAW:
1730 type = SOCK_RAW;
1731 break;
1732 case TARGET_SOCK_RDM:
1733 type = SOCK_RDM;
1734 break;
1735 case TARGET_SOCK_SEQPACKET:
1736 type = SOCK_SEQPACKET;
1737 break;
1738 case TARGET_SOCK_PACKET:
1739 type = SOCK_PACKET;
1740 break;
1741 }
1742 #endif
1743 if (domain == PF_NETLINK)
1744 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1745 return get_errno(socket(domain, type, protocol));
1746 }
1747
1748 /* do_bind() Must return target values and target errnos. */
1749 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1750 socklen_t addrlen)
1751 {
1752 void *addr;
1753 abi_long ret;
1754
1755 if ((int)addrlen < 0) {
1756 return -TARGET_EINVAL;
1757 }
1758
1759 addr = alloca(addrlen+1);
1760
1761 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1762 if (ret)
1763 return ret;
1764
1765 return get_errno(bind(sockfd, addr, addrlen));
1766 }
1767
1768 /* do_connect() Must return target values and target errnos. */
1769 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1770 socklen_t addrlen)
1771 {
1772 void *addr;
1773 abi_long ret;
1774
1775 if ((int)addrlen < 0) {
1776 return -TARGET_EINVAL;
1777 }
1778
1779 addr = alloca(addrlen);
1780
1781 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1782 if (ret)
1783 return ret;
1784
1785 return get_errno(connect(sockfd, addr, addrlen));
1786 }
1787
1788 /* do_sendrecvmsg() Must return target values and target errnos. */
1789 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1790 int flags, int send)
1791 {
1792 abi_long ret, len;
1793 struct target_msghdr *msgp;
1794 struct msghdr msg;
1795 int count;
1796 struct iovec *vec;
1797 abi_ulong target_vec;
1798
1799 /* FIXME */
1800 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1801 msgp,
1802 target_msg,
1803 send ? 1 : 0))
1804 return -TARGET_EFAULT;
1805 if (msgp->msg_name) {
1806 msg.msg_namelen = tswap32(msgp->msg_namelen);
1807 msg.msg_name = alloca(msg.msg_namelen);
1808 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
1809 msg.msg_namelen);
1810 if (ret) {
1811 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1812 return ret;
1813 }
1814 } else {
1815 msg.msg_name = NULL;
1816 msg.msg_namelen = 0;
1817 }
1818 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
1819 msg.msg_control = alloca(msg.msg_controllen);
1820 msg.msg_flags = tswap32(msgp->msg_flags);
1821
1822 count = tswapal(msgp->msg_iovlen);
1823 vec = alloca(count * sizeof(struct iovec));
1824 target_vec = tswapal(msgp->msg_iov);
1825 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1826 msg.msg_iovlen = count;
1827 msg.msg_iov = vec;
1828
1829 if (send) {
1830 ret = target_to_host_cmsg(&msg, msgp);
1831 if (ret == 0)
1832 ret = get_errno(sendmsg(fd, &msg, flags));
1833 } else {
1834 ret = get_errno(recvmsg(fd, &msg, flags));
1835 if (!is_error(ret)) {
1836 len = ret;
1837 ret = host_to_target_cmsg(msgp, &msg);
1838 if (!is_error(ret))
1839 ret = len;
1840 }
1841 }
1842 unlock_iovec(vec, target_vec, count, !send);
1843 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1844 return ret;
1845 }
1846
1847 /* do_accept() Must return target values and target errnos. */
1848 static abi_long do_accept(int fd, abi_ulong target_addr,
1849 abi_ulong target_addrlen_addr)
1850 {
1851 socklen_t addrlen;
1852 void *addr;
1853 abi_long ret;
1854
1855 if (target_addr == 0)
1856 return get_errno(accept(fd, NULL, NULL));
1857
1858 /* linux returns EINVAL if addrlen pointer is invalid */
1859 if (get_user_u32(addrlen, target_addrlen_addr))
1860 return -TARGET_EINVAL;
1861
1862 if ((int)addrlen < 0) {
1863 return -TARGET_EINVAL;
1864 }
1865
1866 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1867 return -TARGET_EINVAL;
1868
1869 addr = alloca(addrlen);
1870
1871 ret = get_errno(accept(fd, addr, &addrlen));
1872 if (!is_error(ret)) {
1873 host_to_target_sockaddr(target_addr, addr, addrlen);
1874 if (put_user_u32(addrlen, target_addrlen_addr))
1875 ret = -TARGET_EFAULT;
1876 }
1877 return ret;
1878 }
1879
1880 /* do_getpeername() Must return target values and target errnos. */
1881 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1882 abi_ulong target_addrlen_addr)
1883 {
1884 socklen_t addrlen;
1885 void *addr;
1886 abi_long ret;
1887
1888 if (get_user_u32(addrlen, target_addrlen_addr))
1889 return -TARGET_EFAULT;
1890
1891 if ((int)addrlen < 0) {
1892 return -TARGET_EINVAL;
1893 }
1894
1895 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1896 return -TARGET_EFAULT;
1897
1898 addr = alloca(addrlen);
1899
1900 ret = get_errno(getpeername(fd, addr, &addrlen));
1901 if (!is_error(ret)) {
1902 host_to_target_sockaddr(target_addr, addr, addrlen);
1903 if (put_user_u32(addrlen, target_addrlen_addr))
1904 ret = -TARGET_EFAULT;
1905 }
1906 return ret;
1907 }
1908
1909 /* do_getsockname() Must return target values and target errnos. */
1910 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1911 abi_ulong target_addrlen_addr)
1912 {
1913 socklen_t addrlen;
1914 void *addr;
1915 abi_long ret;
1916
1917 if (get_user_u32(addrlen, target_addrlen_addr))
1918 return -TARGET_EFAULT;
1919
1920 if ((int)addrlen < 0) {
1921 return -TARGET_EINVAL;
1922 }
1923
1924 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1925 return -TARGET_EFAULT;
1926
1927 addr = alloca(addrlen);
1928
1929 ret = get_errno(getsockname(fd, addr, &addrlen));
1930 if (!is_error(ret)) {
1931 host_to_target_sockaddr(target_addr, addr, addrlen);
1932 if (put_user_u32(addrlen, target_addrlen_addr))
1933 ret = -TARGET_EFAULT;
1934 }
1935 return ret;
1936 }
1937
1938 /* do_socketpair() Must return target values and target errnos. */
1939 static abi_long do_socketpair(int domain, int type, int protocol,
1940 abi_ulong target_tab_addr)
1941 {
1942 int tab[2];
1943 abi_long ret;
1944
1945 ret = get_errno(socketpair(domain, type, protocol, tab));
1946 if (!is_error(ret)) {
1947 if (put_user_s32(tab[0], target_tab_addr)
1948 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1949 ret = -TARGET_EFAULT;
1950 }
1951 return ret;
1952 }
1953
1954 /* do_sendto() Must return target values and target errnos. */
1955 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1956 abi_ulong target_addr, socklen_t addrlen)
1957 {
1958 void *addr;
1959 void *host_msg;
1960 abi_long ret;
1961
1962 if ((int)addrlen < 0) {
1963 return -TARGET_EINVAL;
1964 }
1965
1966 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1967 if (!host_msg)
1968 return -TARGET_EFAULT;
1969 if (target_addr) {
1970 addr = alloca(addrlen);
1971 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1972 if (ret) {
1973 unlock_user(host_msg, msg, 0);
1974 return ret;
1975 }
1976 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1977 } else {
1978 ret = get_errno(send(fd, host_msg, len, flags));
1979 }
1980 unlock_user(host_msg, msg, 0);
1981 return ret;
1982 }
1983
1984 /* do_recvfrom() Must return target values and target errnos. */
1985 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1986 abi_ulong target_addr,
1987 abi_ulong target_addrlen)
1988 {
1989 socklen_t addrlen;
1990 void *addr;
1991 void *host_msg;
1992 abi_long ret;
1993
1994 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1995 if (!host_msg)
1996 return -TARGET_EFAULT;
1997 if (target_addr) {
1998 if (get_user_u32(addrlen, target_addrlen)) {
1999 ret = -TARGET_EFAULT;
2000 goto fail;
2001 }
2002 if ((int)addrlen < 0) {
2003 ret = -TARGET_EINVAL;
2004 goto fail;
2005 }
2006 addr = alloca(addrlen);
2007 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
2008 } else {
2009 addr = NULL; /* To keep compiler quiet. */
2010 ret = get_errno(qemu_recv(fd, host_msg, len, flags));
2011 }
2012 if (!is_error(ret)) {
2013 if (target_addr) {
2014 host_to_target_sockaddr(target_addr, addr, addrlen);
2015 if (put_user_u32(addrlen, target_addrlen)) {
2016 ret = -TARGET_EFAULT;
2017 goto fail;
2018 }
2019 }
2020 unlock_user(host_msg, msg, len);
2021 } else {
2022 fail:
2023 unlock_user(host_msg, msg, 0);
2024 }
2025 return ret;
2026 }
2027
2028 #ifdef TARGET_NR_socketcall
2029 /* do_socketcall() Must return target values and target errnos. */
2030 static abi_long do_socketcall(int num, abi_ulong vptr)
2031 {
2032 abi_long ret;
2033 const int n = sizeof(abi_ulong);
2034
2035 switch(num) {
2036 case SOCKOP_socket:
2037 {
2038 abi_ulong domain, type, protocol;
2039
2040 if (get_user_ual(domain, vptr)
2041 || get_user_ual(type, vptr + n)
2042 || get_user_ual(protocol, vptr + 2 * n))
2043 return -TARGET_EFAULT;
2044
2045 ret = do_socket(domain, type, protocol);
2046 }
2047 break;
2048 case SOCKOP_bind:
2049 {
2050 abi_ulong sockfd;
2051 abi_ulong target_addr;
2052 socklen_t addrlen;
2053
2054 if (get_user_ual(sockfd, vptr)
2055 || get_user_ual(target_addr, vptr + n)
2056 || get_user_ual(addrlen, vptr + 2 * n))
2057 return -TARGET_EFAULT;
2058
2059 ret = do_bind(sockfd, target_addr, addrlen);
2060 }
2061 break;
2062 case SOCKOP_connect:
2063 {
2064 abi_ulong sockfd;
2065 abi_ulong target_addr;
2066 socklen_t addrlen;
2067
2068 if (get_user_ual(sockfd, vptr)
2069 || get_user_ual(target_addr, vptr + n)
2070 || get_user_ual(addrlen, vptr + 2 * n))
2071 return -TARGET_EFAULT;
2072
2073 ret = do_connect(sockfd, target_addr, addrlen);
2074 }
2075 break;
2076 case SOCKOP_listen:
2077 {
2078 abi_ulong sockfd, backlog;
2079
2080 if (get_user_ual(sockfd, vptr)
2081 || get_user_ual(backlog, vptr + n))
2082 return -TARGET_EFAULT;
2083
2084 ret = get_errno(listen(sockfd, backlog));
2085 }
2086 break;
2087 case SOCKOP_accept:
2088 {
2089 abi_ulong sockfd;
2090 abi_ulong target_addr, target_addrlen;
2091
2092 if (get_user_ual(sockfd, vptr)
2093 || get_user_ual(target_addr, vptr + n)
2094 || get_user_ual(target_addrlen, vptr + 2 * n))
2095 return -TARGET_EFAULT;
2096
2097 ret = do_accept(sockfd, target_addr, target_addrlen);
2098 }
2099 break;
2100 case SOCKOP_getsockname:
2101 {
2102 abi_ulong sockfd;
2103 abi_ulong target_addr, target_addrlen;
2104
2105 if (get_user_ual(sockfd, vptr)
2106 || get_user_ual(target_addr, vptr + n)
2107 || get_user_ual(target_addrlen, vptr + 2 * n))
2108 return -TARGET_EFAULT;
2109
2110 ret = do_getsockname(sockfd, target_addr, target_addrlen);
2111 }
2112 break;
2113 case SOCKOP_getpeername:
2114 {
2115 abi_ulong sockfd;
2116 abi_ulong target_addr, target_addrlen;
2117
2118 if (get_user_ual(sockfd, vptr)
2119 || get_user_ual(target_addr, vptr + n)
2120 || get_user_ual(target_addrlen, vptr + 2 * n))
2121 return -TARGET_EFAULT;
2122
2123 ret = do_getpeername(sockfd, target_addr, target_addrlen);
2124 }
2125 break;
2126 case SOCKOP_socketpair:
2127 {
2128 abi_ulong domain, type, protocol;
2129 abi_ulong tab;
2130
2131 if (get_user_ual(domain, vptr)
2132 || get_user_ual(type, vptr + n)
2133 || get_user_ual(protocol, vptr + 2 * n)
2134 || get_user_ual(tab, vptr + 3 * n))
2135 return -TARGET_EFAULT;
2136
2137 ret = do_socketpair(domain, type, protocol, tab);
2138 }
2139 break;
2140 case SOCKOP_send:
2141 {
2142 abi_ulong sockfd;
2143 abi_ulong msg;
2144 size_t len;
2145 abi_ulong flags;
2146
2147 if (get_user_ual(sockfd, vptr)
2148 || get_user_ual(msg, vptr + n)
2149 || get_user_ual(len, vptr + 2 * n)
2150 || get_user_ual(flags, vptr + 3 * n))
2151 return -TARGET_EFAULT;
2152
2153 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2154 }
2155 break;
2156 case SOCKOP_recv:
2157 {
2158 abi_ulong sockfd;
2159 abi_ulong msg;
2160 size_t len;
2161 abi_ulong flags;
2162
2163 if (get_user_ual(sockfd, vptr)
2164 || get_user_ual(msg, vptr + n)
2165 || get_user_ual(len, vptr + 2 * n)
2166 || get_user_ual(flags, vptr + 3 * n))
2167 return -TARGET_EFAULT;
2168
2169 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2170 }
2171 break;
2172 case SOCKOP_sendto:
2173 {
2174 abi_ulong sockfd;
2175 abi_ulong msg;
2176 size_t len;
2177 abi_ulong flags;
2178 abi_ulong addr;
2179 socklen_t addrlen;
2180
2181 if (get_user_ual(sockfd, vptr)
2182 || get_user_ual(msg, vptr + n)
2183 || get_user_ual(len, vptr + 2 * n)
2184 || get_user_ual(flags, vptr + 3 * n)
2185 || get_user_ual(addr, vptr + 4 * n)
2186 || get_user_ual(addrlen, vptr + 5 * n))
2187 return -TARGET_EFAULT;
2188
2189 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2190 }
2191 break;
2192 case SOCKOP_recvfrom:
2193 {
2194 abi_ulong sockfd;
2195 abi_ulong msg;
2196 size_t len;
2197 abi_ulong flags;
2198 abi_ulong addr;
2199 socklen_t addrlen;
2200
2201 if (get_user_ual(sockfd, vptr)
2202 || get_user_ual(msg, vptr + n)
2203 || get_user_ual(len, vptr + 2 * n)
2204 || get_user_ual(flags, vptr + 3 * n)
2205 || get_user_ual(addr, vptr + 4 * n)
2206 || get_user_ual(addrlen, vptr + 5 * n))
2207 return -TARGET_EFAULT;
2208
2209 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2210 }
2211 break;
2212 case SOCKOP_shutdown:
2213 {
2214 abi_ulong sockfd, how;
2215
2216 if (get_user_ual(sockfd, vptr)
2217 || get_user_ual(how, vptr + n))
2218 return -TARGET_EFAULT;
2219
2220 ret = get_errno(shutdown(sockfd, how));
2221 }
2222 break;
2223 case SOCKOP_sendmsg:
2224 case SOCKOP_recvmsg:
2225 {
2226 abi_ulong fd;
2227 abi_ulong target_msg;
2228 abi_ulong flags;
2229
2230 if (get_user_ual(fd, vptr)
2231 || get_user_ual(target_msg, vptr + n)
2232 || get_user_ual(flags, vptr + 2 * n))
2233 return -TARGET_EFAULT;
2234
2235 ret = do_sendrecvmsg(fd, target_msg, flags,
2236 (num == SOCKOP_sendmsg));
2237 }
2238 break;
2239 case SOCKOP_setsockopt:
2240 {
2241 abi_ulong sockfd;
2242 abi_ulong level;
2243 abi_ulong optname;
2244 abi_ulong optval;
2245 socklen_t optlen;
2246
2247 if (get_user_ual(sockfd, vptr)
2248 || get_user_ual(level, vptr + n)
2249 || get_user_ual(optname, vptr + 2 * n)
2250 || get_user_ual(optval, vptr + 3 * n)
2251 || get_user_ual(optlen, vptr + 4 * n))
2252 return -TARGET_EFAULT;
2253
2254 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2255 }
2256 break;
2257 case SOCKOP_getsockopt:
2258 {
2259 abi_ulong sockfd;
2260 abi_ulong level;
2261 abi_ulong optname;
2262 abi_ulong optval;
2263 socklen_t optlen;
2264
2265 if (get_user_ual(sockfd, vptr)
2266 || get_user_ual(level, vptr + n)
2267 || get_user_ual(optname, vptr + 2 * n)
2268 || get_user_ual(optval, vptr + 3 * n)
2269 || get_user_ual(optlen, vptr + 4 * n))
2270 return -TARGET_EFAULT;
2271
2272 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2273 }
2274 break;
2275 default:
2276 gemu_log("Unsupported socketcall: %d\n", num);
2277 ret = -TARGET_ENOSYS;
2278 break;
2279 }
2280 return ret;
2281 }
2282 #endif
2283
2284 #define N_SHM_REGIONS 32
2285
2286 static struct shm_region {
2287 abi_ulong start;
2288 abi_ulong size;
2289 } shm_regions[N_SHM_REGIONS];
2290
2291 struct target_ipc_perm
2292 {
2293 abi_long __key;
2294 abi_ulong uid;
2295 abi_ulong gid;
2296 abi_ulong cuid;
2297 abi_ulong cgid;
2298 unsigned short int mode;
2299 unsigned short int __pad1;
2300 unsigned short int __seq;
2301 unsigned short int __pad2;
2302 abi_ulong __unused1;
2303 abi_ulong __unused2;
2304 };
2305
2306 struct target_semid_ds
2307 {
2308 struct target_ipc_perm sem_perm;
2309 abi_ulong sem_otime;
2310 abi_ulong __unused1;
2311 abi_ulong sem_ctime;
2312 abi_ulong __unused2;
2313 abi_ulong sem_nsems;
2314 abi_ulong __unused3;
2315 abi_ulong __unused4;
2316 };
2317
2318 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2319 abi_ulong target_addr)
2320 {
2321 struct target_ipc_perm *target_ip;
2322 struct target_semid_ds *target_sd;
2323
2324 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2325 return -TARGET_EFAULT;
2326 target_ip = &(target_sd->sem_perm);
2327 host_ip->__key = tswapal(target_ip->__key);
2328 host_ip->uid = tswapal(target_ip->uid);
2329 host_ip->gid = tswapal(target_ip->gid);
2330 host_ip->cuid = tswapal(target_ip->cuid);
2331 host_ip->cgid = tswapal(target_ip->cgid);
2332 host_ip->mode = tswap16(target_ip->mode);
2333 unlock_user_struct(target_sd, target_addr, 0);
2334 return 0;
2335 }
2336
2337 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2338 struct ipc_perm *host_ip)
2339 {
2340 struct target_ipc_perm *target_ip;
2341 struct target_semid_ds *target_sd;
2342
2343 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2344 return -TARGET_EFAULT;
2345 target_ip = &(target_sd->sem_perm);
2346 target_ip->__key = tswapal(host_ip->__key);
2347 target_ip->uid = tswapal(host_ip->uid);
2348 target_ip->gid = tswapal(host_ip->gid);
2349 target_ip->cuid = tswapal(host_ip->cuid);
2350 target_ip->cgid = tswapal(host_ip->cgid);
2351 target_ip->mode = tswap16(host_ip->mode);
2352 unlock_user_struct(target_sd, target_addr, 1);
2353 return 0;
2354 }
2355
2356 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2357 abi_ulong target_addr)
2358 {
2359 struct target_semid_ds *target_sd;
2360
2361 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2362 return -TARGET_EFAULT;
2363 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2364 return -TARGET_EFAULT;
2365 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
2366 host_sd->sem_otime = tswapal(target_sd->sem_otime);
2367 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
2368 unlock_user_struct(target_sd, target_addr, 0);
2369 return 0;
2370 }
2371
2372 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2373 struct semid_ds *host_sd)
2374 {
2375 struct target_semid_ds *target_sd;
2376
2377 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2378 return -TARGET_EFAULT;
2379 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2380 return -TARGET_EFAULT;;
2381 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
2382 target_sd->sem_otime = tswapal(host_sd->sem_otime);
2383 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
2384 unlock_user_struct(target_sd, target_addr, 1);
2385 return 0;
2386 }
2387
2388 struct target_seminfo {
2389 int semmap;
2390 int semmni;
2391 int semmns;
2392 int semmnu;
2393 int semmsl;
2394 int semopm;
2395 int semume;
2396 int semusz;
2397 int semvmx;
2398 int semaem;
2399 };
2400
2401 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2402 struct seminfo *host_seminfo)
2403 {
2404 struct target_seminfo *target_seminfo;
2405 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2406 return -TARGET_EFAULT;
2407 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2408 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2409 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2410 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2411 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2412 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2413 __put_user(host_seminfo->semume, &target_seminfo->semume);
2414 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2415 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2416 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2417 unlock_user_struct(target_seminfo, target_addr, 1);
2418 return 0;
2419 }
2420
2421 union semun {
2422 int val;
2423 struct semid_ds *buf;
2424 unsigned short *array;
2425 struct seminfo *__buf;
2426 };
2427
2428 union target_semun {
2429 int val;
2430 abi_ulong buf;
2431 abi_ulong array;
2432 abi_ulong __buf;
2433 };
2434
2435 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2436 abi_ulong target_addr)
2437 {
2438 int nsems;
2439 unsigned short *array;
2440 union semun semun;
2441 struct semid_ds semid_ds;
2442 int i, ret;
2443
2444 semun.buf = &semid_ds;
2445
2446 ret = semctl(semid, 0, IPC_STAT, semun);
2447 if (ret == -1)
2448 return get_errno(ret);
2449
2450 nsems = semid_ds.sem_nsems;
2451
2452 *host_array = malloc(nsems*sizeof(unsigned short));
2453 array = lock_user(VERIFY_READ, target_addr,
2454 nsems*sizeof(unsigned short), 1);
2455 if (!array)
2456 return -TARGET_EFAULT;
2457
2458 for(i=0; i<nsems; i++) {
2459 __get_user((*host_array)[i], &array[i]);
2460 }
2461 unlock_user(array, target_addr, 0);
2462
2463 return 0;
2464 }
2465
2466 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2467 unsigned short **host_array)
2468 {
2469 int nsems;
2470 unsigned short *array;
2471 union semun semun;
2472 struct semid_ds semid_ds;
2473 int i, ret;
2474
2475 semun.buf = &semid_ds;
2476
2477 ret = semctl(semid, 0, IPC_STAT, semun);
2478 if (ret == -1)
2479 return get_errno(ret);
2480
2481 nsems = semid_ds.sem_nsems;
2482
2483 array = lock_user(VERIFY_WRITE, target_addr,
2484 nsems*sizeof(unsigned short), 0);
2485 if (!array)
2486 return -TARGET_EFAULT;
2487
2488 for(i=0; i<nsems; i++) {
2489 __put_user((*host_array)[i], &array[i]);
2490 }
2491 free(*host_array);
2492 unlock_user(array, target_addr, 1);
2493
2494 return 0;
2495 }
2496
2497 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2498 union target_semun target_su)
2499 {
2500 union semun arg;
2501 struct semid_ds dsarg;
2502 unsigned short *array = NULL;
2503 struct seminfo seminfo;
2504 abi_long ret = -TARGET_EINVAL;
2505 abi_long err;
2506 cmd &= 0xff;
2507
2508 switch( cmd ) {
2509 case GETVAL:
2510 case SETVAL:
2511 arg.val = tswap32(target_su.val);
2512 ret = get_errno(semctl(semid, semnum, cmd, arg));
2513 target_su.val = tswap32(arg.val);
2514 break;
2515 case GETALL:
2516 case SETALL:
2517 err = target_to_host_semarray(semid, &array, target_su.array);
2518 if (err)
2519 return err;
2520 arg.array = array;
2521 ret = get_errno(semctl(semid, semnum, cmd, arg));
2522 err = host_to_target_semarray(semid, target_su.array, &array);
2523 if (err)
2524 return err;
2525 break;
2526 case IPC_STAT:
2527 case IPC_SET:
2528 case SEM_STAT:
2529 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2530 if (err)
2531 return err;
2532 arg.buf = &dsarg;
2533 ret = get_errno(semctl(semid, semnum, cmd, arg));
2534 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2535 if (err)
2536 return err;
2537 break;
2538 case IPC_INFO:
2539 case SEM_INFO:
2540 arg.__buf = &seminfo;
2541 ret = get_errno(semctl(semid, semnum, cmd, arg));
2542 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2543 if (err)
2544 return err;
2545 break;
2546 case IPC_RMID:
2547 case GETPID:
2548 case GETNCNT:
2549 case GETZCNT:
2550 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2551 break;
2552 }
2553
2554 return ret;
2555 }
2556
2557 struct target_sembuf {
2558 unsigned short sem_num;
2559 short sem_op;
2560 short sem_flg;
2561 };
2562
2563 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2564 abi_ulong target_addr,
2565 unsigned nsops)
2566 {
2567 struct target_sembuf *target_sembuf;
2568 int i;
2569
2570 target_sembuf = lock_user(VERIFY_READ, target_addr,
2571 nsops*sizeof(struct target_sembuf), 1);
2572 if (!target_sembuf)
2573 return -TARGET_EFAULT;
2574
2575 for(i=0; i<nsops; i++) {
2576 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2577 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2578 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2579 }
2580
2581 unlock_user(target_sembuf, target_addr, 0);
2582
2583 return 0;
2584 }
2585
2586 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2587 {
2588 struct sembuf sops[nsops];
2589
2590 if (target_to_host_sembuf(sops, ptr, nsops))
2591 return -TARGET_EFAULT;
2592
2593 return semop(semid, sops, nsops);
2594 }
2595
2596 struct target_msqid_ds
2597 {
2598 struct target_ipc_perm msg_perm;
2599 abi_ulong msg_stime;
2600 #if TARGET_ABI_BITS == 32
2601 abi_ulong __unused1;
2602 #endif
2603 abi_ulong msg_rtime;
2604 #if TARGET_ABI_BITS == 32
2605 abi_ulong __unused2;
2606 #endif
2607 abi_ulong msg_ctime;
2608 #if TARGET_ABI_BITS == 32
2609 abi_ulong __unused3;
2610 #endif
2611 abi_ulong __msg_cbytes;
2612 abi_ulong msg_qnum;
2613 abi_ulong msg_qbytes;
2614 abi_ulong msg_lspid;
2615 abi_ulong msg_lrpid;
2616 abi_ulong __unused4;
2617 abi_ulong __unused5;
2618 };
2619
2620 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2621 abi_ulong target_addr)
2622 {
2623 struct target_msqid_ds *target_md;
2624
2625 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2626 return -TARGET_EFAULT;
2627 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2628 return -TARGET_EFAULT;
2629 host_md->msg_stime = tswapal(target_md->msg_stime);
2630 host_md->msg_rtime = tswapal(target_md->msg_rtime);
2631 host_md->msg_ctime = tswapal(target_md->msg_ctime);
2632 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
2633 host_md->msg_qnum = tswapal(target_md->msg_qnum);
2634 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
2635 host_md->msg_lspid = tswapal(target_md->msg_lspid);
2636 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
2637 unlock_user_struct(target_md, target_addr, 0);
2638 return 0;
2639 }
2640
2641 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2642 struct msqid_ds *host_md)
2643 {
2644 struct target_msqid_ds *target_md;
2645
2646 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2647 return -TARGET_EFAULT;
2648 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2649 return -TARGET_EFAULT;
2650 target_md->msg_stime = tswapal(host_md->msg_stime);
2651 target_md->msg_rtime = tswapal(host_md->msg_rtime);
2652 target_md->msg_ctime = tswapal(host_md->msg_ctime);
2653 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
2654 target_md->msg_qnum = tswapal(host_md->msg_qnum);
2655 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
2656 target_md->msg_lspid = tswapal(host_md->msg_lspid);
2657 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
2658 unlock_user_struct(target_md, target_addr, 1);
2659 return 0;
2660 }
2661
2662 struct target_msginfo {
2663 int msgpool;
2664 int msgmap;
2665 int msgmax;
2666 int msgmnb;
2667 int msgmni;
2668 int msgssz;
2669 int msgtql;
2670 unsigned short int msgseg;
2671 };
2672
2673 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2674 struct msginfo *host_msginfo)
2675 {
2676 struct target_msginfo *target_msginfo;
2677 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2678 return -TARGET_EFAULT;
2679 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2680 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2681 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2682 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2683 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2684 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2685 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2686 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2687 unlock_user_struct(target_msginfo, target_addr, 1);
2688 return 0;
2689 }
2690
2691 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2692 {
2693 struct msqid_ds dsarg;
2694 struct msginfo msginfo;
2695 abi_long ret = -TARGET_EINVAL;
2696
2697 cmd &= 0xff;
2698
2699 switch (cmd) {
2700 case IPC_STAT:
2701 case IPC_SET:
2702 case MSG_STAT:
2703 if (target_to_host_msqid_ds(&dsarg,ptr))
2704 return -TARGET_EFAULT;
2705 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2706 if (host_to_target_msqid_ds(ptr,&dsarg))
2707 return -TARGET_EFAULT;
2708 break;
2709 case IPC_RMID:
2710 ret = get_errno(msgctl(msgid, cmd, NULL));
2711 break;
2712 case IPC_INFO:
2713 case MSG_INFO:
2714 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2715 if (host_to_target_msginfo(ptr, &msginfo))
2716 return -TARGET_EFAULT;
2717 break;
2718 }
2719
2720 return ret;
2721 }
2722
2723 struct target_msgbuf {
2724 abi_long mtype;
2725 char mtext[1];
2726 };
2727
2728 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2729 unsigned int msgsz, int msgflg)
2730 {
2731 struct target_msgbuf *target_mb;
2732 struct msgbuf *host_mb;
2733 abi_long ret = 0;
2734
2735 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2736 return -TARGET_EFAULT;
2737 host_mb = malloc(msgsz+sizeof(long));
2738 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
2739 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2740 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2741 free(host_mb);
2742 unlock_user_struct(target_mb, msgp, 0);
2743
2744 return ret;
2745 }
2746
2747 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2748 unsigned int msgsz, abi_long msgtyp,
2749 int msgflg)
2750 {
2751 struct target_msgbuf *target_mb;
2752 char *target_mtext;
2753 struct msgbuf *host_mb;
2754 abi_long ret = 0;
2755
2756 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2757 return -TARGET_EFAULT;
2758
2759 host_mb = malloc(msgsz+sizeof(long));
2760 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapal(msgtyp), msgflg));
2761
2762 if (ret > 0) {
2763 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2764 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2765 if (!target_mtext) {
2766 ret = -TARGET_EFAULT;
2767 goto end;
2768 }
2769 memcpy(target_mb->mtext, host_mb->mtext, ret);
2770 unlock_user(target_mtext, target_mtext_addr, ret);
2771 }
2772
2773 target_mb->mtype = tswapal(host_mb->mtype);
2774 free(host_mb);
2775
2776 end:
2777 if (target_mb)
2778 unlock_user_struct(target_mb, msgp, 1);
2779 return ret;
2780 }
2781
2782 struct target_shmid_ds
2783 {
2784 struct target_ipc_perm shm_perm;
2785 abi_ulong shm_segsz;
2786 abi_ulong shm_atime;
2787 #if TARGET_ABI_BITS == 32
2788 abi_ulong __unused1;
2789 #endif
2790 abi_ulong shm_dtime;
2791 #if TARGET_ABI_BITS == 32
2792 abi_ulong __unused2;
2793 #endif
2794 abi_ulong shm_ctime;
2795 #if TARGET_ABI_BITS == 32
2796 abi_ulong __unused3;
2797 #endif
2798 int shm_cpid;
2799 int shm_lpid;
2800 abi_ulong shm_nattch;
2801 unsigned long int __unused4;
2802 unsigned long int __unused5;
2803 };
2804
2805 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2806 abi_ulong target_addr)
2807 {
2808 struct target_shmid_ds *target_sd;
2809
2810 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2811 return -TARGET_EFAULT;
2812 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2813 return -TARGET_EFAULT;
2814 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2815 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2816 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2817 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2818 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2819 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2820 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2821 unlock_user_struct(target_sd, target_addr, 0);
2822 return 0;
2823 }
2824
2825 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2826 struct shmid_ds *host_sd)
2827 {
2828 struct target_shmid_ds *target_sd;
2829
2830 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2831 return -TARGET_EFAULT;
2832 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2833 return -TARGET_EFAULT;
2834 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2835 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2836 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2837 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2838 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2839 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2840 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2841 unlock_user_struct(target_sd, target_addr, 1);
2842 return 0;
2843 }
2844
2845 struct target_shminfo {
2846 abi_ulong shmmax;
2847 abi_ulong shmmin;
2848 abi_ulong shmmni;
2849 abi_ulong shmseg;
2850 abi_ulong shmall;
2851 };
2852
2853 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2854 struct shminfo *host_shminfo)
2855 {
2856 struct target_shminfo *target_shminfo;
2857 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2858 return -TARGET_EFAULT;
2859 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2860 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2861 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2862 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2863 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2864 unlock_user_struct(target_shminfo, target_addr, 1);
2865 return 0;
2866 }
2867
2868 struct target_shm_info {
2869 int used_ids;
2870 abi_ulong shm_tot;
2871 abi_ulong shm_rss;
2872 abi_ulong shm_swp;
2873 abi_ulong swap_attempts;
2874 abi_ulong swap_successes;
2875 };
2876
2877 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2878 struct shm_info *host_shm_info)
2879 {
2880 struct target_shm_info *target_shm_info;
2881 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2882 return -TARGET_EFAULT;
2883 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2884 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2885 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2886 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2887 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2888 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2889 unlock_user_struct(target_shm_info, target_addr, 1);
2890 return 0;
2891 }
2892
2893 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2894 {
2895 struct shmid_ds dsarg;
2896 struct shminfo shminfo;
2897 struct shm_info shm_info;
2898 abi_long ret = -TARGET_EINVAL;
2899
2900 cmd &= 0xff;
2901
2902 switch(cmd) {
2903 case IPC_STAT:
2904 case IPC_SET:
2905 case SHM_STAT:
2906 if (target_to_host_shmid_ds(&dsarg, buf))
2907 return -TARGET_EFAULT;
2908 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2909 if (host_to_target_shmid_ds(buf, &dsarg))
2910 return -TARGET_EFAULT;
2911 break;
2912 case IPC_INFO:
2913 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2914 if (host_to_target_shminfo(buf, &shminfo))
2915 return -TARGET_EFAULT;
2916 break;
2917 case SHM_INFO:
2918 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2919 if (host_to_target_shm_info(buf, &shm_info))
2920 return -TARGET_EFAULT;
2921 break;
2922 case IPC_RMID:
2923 case SHM_LOCK:
2924 case SHM_UNLOCK:
2925 ret = get_errno(shmctl(shmid, cmd, NULL));
2926 break;
2927 }
2928
2929 return ret;
2930 }
2931
2932 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2933 {
2934 abi_long raddr;
2935 void *host_raddr;
2936 struct shmid_ds shm_info;
2937 int i,ret;
2938
2939 /* find out the length of the shared memory segment */
2940 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2941 if (is_error(ret)) {
2942 /* can't get length, bail out */
2943 return ret;
2944 }
2945
2946 mmap_lock();
2947
2948 if (shmaddr)
2949 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2950 else {
2951 abi_ulong mmap_start;
2952
2953 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2954
2955 if (mmap_start == -1) {
2956 errno = ENOMEM;
2957 host_raddr = (void *)-1;
2958 } else
2959 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2960 }
2961
2962 if (host_raddr == (void *)-1) {
2963 mmap_unlock();
2964 return get_errno((long)host_raddr);
2965 }
2966 raddr=h2g((unsigned long)host_raddr);
2967
2968 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2969 PAGE_VALID | PAGE_READ |
2970 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2971
2972 for (i = 0; i < N_SHM_REGIONS; i++) {
2973 if (shm_regions[i].start == 0) {
2974 shm_regions[i].start = raddr;
2975 shm_regions[i].size = shm_info.shm_segsz;
2976 break;
2977 }
2978 }
2979
2980 mmap_unlock();
2981 return raddr;
2982
2983 }
2984
2985 static inline abi_long do_shmdt(abi_ulong shmaddr)
2986 {
2987 int i;
2988
2989 for (i = 0; i < N_SHM_REGIONS; ++i) {
2990 if (shm_regions[i].start == shmaddr) {
2991 shm_regions[i].start = 0;
2992 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
2993 break;
2994 }
2995 }
2996
2997 return get_errno(shmdt(g2h(shmaddr)));
2998 }
2999
3000 #ifdef TARGET_NR_ipc
3001 /* ??? This only works with linear mappings. */
3002 /* do_ipc() must return target values and target errnos. */
3003 static abi_long do_ipc(unsigned int call, int first,
3004 int second, int third,
3005 abi_long ptr, abi_long fifth)
3006 {
3007 int version;
3008 abi_long ret = 0;
3009
3010 version = call >> 16;
3011 call &= 0xffff;
3012
3013 switch (call) {
3014 case IPCOP_semop:
3015 ret = do_semop(first, ptr, second);
3016 break;
3017
3018 case IPCOP_semget:
3019 ret = get_errno(semget(first, second, third));
3020 break;
3021
3022 case IPCOP_semctl:
3023 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
3024 break;
3025
3026 case IPCOP_msgget:
3027 ret = get_errno(msgget(first, second));
3028 break;
3029
3030 case IPCOP_msgsnd:
3031 ret = do_msgsnd(first, ptr, second, third);
3032 break;
3033
3034 case IPCOP_msgctl:
3035 ret = do_msgctl(first, second, ptr);
3036 break;
3037
3038 case IPCOP_msgrcv:
3039 switch (version) {
3040 case 0:
3041 {
3042 struct target_ipc_kludge {
3043 abi_long msgp;
3044 abi_long msgtyp;
3045 } *tmp;
3046
3047 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3048 ret = -TARGET_EFAULT;
3049 break;
3050 }
3051
3052 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
3053
3054 unlock_user_struct(tmp, ptr, 0);
3055 break;
3056 }
3057 default:
3058 ret = do_msgrcv(first, ptr, second, fifth, third);
3059 }
3060 break;
3061
3062 case IPCOP_shmat:
3063 switch (version) {
3064 default:
3065 {
3066 abi_ulong raddr;
3067 raddr = do_shmat(first, ptr, second);
3068 if (is_error(raddr))
3069 return get_errno(raddr);
3070 if (put_user_ual(raddr, third))
3071 return -TARGET_EFAULT;
3072 break;
3073 }
3074 case 1:
3075 ret = -TARGET_EINVAL;
3076 break;
3077 }
3078 break;
3079 case IPCOP_shmdt:
3080 ret = do_shmdt(ptr);
3081 break;
3082
3083 case IPCOP_shmget:
3084 /* IPC_* flag values are the same on all linux platforms */
3085 ret = get_errno(shmget(first, second, third));
3086 break;
3087
3088 /* IPC_* and SHM_* command values are the same on all linux platforms */
3089 case IPCOP_shmctl:
3090 ret = do_shmctl(first, second, third);
3091 break;
3092 default:
3093 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
3094 ret = -TARGET_ENOSYS;
3095 break;
3096 }
3097 return ret;
3098 }
3099 #endif
3100
3101 /* kernel structure types definitions */
3102
3103 #define STRUCT(name, ...) STRUCT_ ## name,
3104 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
3105 enum {
3106 #include "syscall_types.h"
3107 };
3108 #undef STRUCT
3109 #undef STRUCT_SPECIAL
3110
3111 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
3112 #define STRUCT_SPECIAL(name)
3113 #include "syscall_types.h"
3114 #undef STRUCT
3115 #undef STRUCT_SPECIAL
3116
3117 typedef struct IOCTLEntry IOCTLEntry;
3118
3119 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
3120 int fd, abi_long cmd, abi_long arg);
3121
3122 struct IOCTLEntry {
3123 unsigned int target_cmd;
3124 unsigned int host_cmd;
3125 const char *name;
3126 int access;
3127 do_ioctl_fn *do_ioctl;
3128 const argtype arg_type[5];
3129 };
3130
3131 #define IOC_R 0x0001
3132 #define IOC_W 0x0002
3133 #define IOC_RW (IOC_R | IOC_W)
3134
3135 #define MAX_STRUCT_SIZE 4096
3136
3137 #ifdef CONFIG_FIEMAP
3138 /* So fiemap access checks don't overflow on 32 bit systems.
3139 * This is very slightly smaller than the limit imposed by
3140 * the underlying kernel.
3141 */
3142 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
3143 / sizeof(struct fiemap_extent))
3144
3145 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
3146 int fd, abi_long cmd, abi_long arg)
3147 {
3148 /* The parameter for this ioctl is a struct fiemap followed
3149 * by an array of struct fiemap_extent whose size is set
3150 * in fiemap->fm_extent_count. The array is filled in by the
3151 * ioctl.
3152 */
3153 int target_size_in, target_size_out;
3154 struct fiemap *fm;
3155 const argtype *arg_type = ie->arg_type;
3156 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3157 void *argptr, *p;
3158 abi_long ret;
3159 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3160 uint32_t outbufsz;
3161 int free_fm = 0;
3162
3163 assert(arg_type[0] == TYPE_PTR);
3164 assert(ie->access == IOC_RW);
3165 arg_type++;
3166 target_size_in = thunk_type_size(arg_type, 0);
3167 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3168 if (!argptr) {
3169 return -TARGET_EFAULT;
3170 }
3171 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3172 unlock_user(argptr, arg, 0);
3173 fm = (struct fiemap *)buf_temp;
3174 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3175 return -TARGET_EINVAL;
3176 }
3177
3178 outbufsz = sizeof (*fm) +
3179 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3180
3181 if (outbufsz > MAX_STRUCT_SIZE) {
3182 /* We can't fit all the extents into the fixed size buffer.
3183 * Allocate one that is large enough and use it instead.
3184 */
3185 fm = malloc(outbufsz);
3186 if (!fm) {
3187 return -TARGET_ENOMEM;
3188 }
3189 memcpy(fm, buf_temp, sizeof(struct fiemap));
3190 free_fm = 1;
3191 }
3192 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3193 if (!is_error(ret)) {
3194 target_size_out = target_size_in;
3195 /* An extent_count of 0 means we were only counting the extents
3196 * so there are no structs to copy
3197 */
3198 if (fm->fm_extent_count != 0) {
3199 target_size_out += fm->fm_mapped_extents * extent_size;
3200 }
3201 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3202 if (!argptr) {
3203 ret = -TARGET_EFAULT;
3204 } else {
3205 /* Convert the struct fiemap */
3206 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3207 if (fm->fm_extent_count != 0) {
3208 p = argptr + target_size_in;
3209 /* ...and then all the struct fiemap_extents */
3210 for (i = 0; i < fm->fm_mapped_extents; i++) {
3211 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3212 THUNK_TARGET);
3213 p += extent_size;
3214 }
3215 }
3216 unlock_user(argptr, arg, target_size_out);
3217 }
3218 }
3219 if (free_fm) {
3220 free(fm);
3221 }
3222 return ret;
3223 }
3224 #endif
3225
3226 static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
3227 int fd, abi_long cmd, abi_long arg)
3228 {
3229 const argtype *arg_type = ie->arg_type;
3230 int target_size;
3231 void *argptr;
3232 int ret;
3233 struct ifconf *host_ifconf;
3234 uint32_t outbufsz;
3235 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
3236 int target_ifreq_size;
3237 int nb_ifreq;
3238 int free_buf = 0;
3239 int i;
3240 int target_ifc_len;
3241 abi_long target_ifc_buf;
3242 int host_ifc_len;
3243 char *host_ifc_buf;
3244
3245 assert(arg_type[0] == TYPE_PTR);
3246 assert(ie->access == IOC_RW);
3247
3248 arg_type++;
3249 target_size = thunk_type_size(arg_type, 0);
3250
3251 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3252 if (!argptr)
3253 return -TARGET_EFAULT;
3254 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3255 unlock_user(argptr, arg, 0);
3256
3257 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
3258 target_ifc_len = host_ifconf->ifc_len;
3259 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
3260
3261 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
3262 nb_ifreq = target_ifc_len / target_ifreq_size;
3263 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
3264
3265 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
3266 if (outbufsz > MAX_STRUCT_SIZE) {
3267 /* We can't fit all the extents into the fixed size buffer.
3268 * Allocate one that is large enough and use it instead.
3269 */
3270 host_ifconf = malloc(outbufsz);
3271 if (!host_ifconf) {
3272 return -TARGET_ENOMEM;
3273 }
3274 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
3275 free_buf = 1;
3276 }
3277 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
3278
3279 host_ifconf->ifc_len = host_ifc_len;
3280 host_ifconf->ifc_buf = host_ifc_buf;
3281
3282 ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf));
3283 if (!is_error(ret)) {
3284 /* convert host ifc_len to target ifc_len */
3285
3286 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
3287 target_ifc_len = nb_ifreq * target_ifreq_size;
3288 host_ifconf->ifc_len = target_ifc_len;
3289
3290 /* restore target ifc_buf */
3291
3292 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
3293
3294 /* copy struct ifconf to target user */
3295
3296 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3297 if (!argptr)
3298 return -TARGET_EFAULT;
3299 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
3300 unlock_user(argptr, arg, target_size);
3301
3302 /* copy ifreq[] to target user */
3303
3304 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
3305 for (i = 0; i < nb_ifreq ; i++) {
3306 thunk_convert(argptr + i * target_ifreq_size,
3307 host_ifc_buf + i * sizeof(struct ifreq),
3308 ifreq_arg_type, THUNK_TARGET);
3309 }
3310 unlock_user(argptr, target_ifc_buf, target_ifc_len);
3311 }
3312
3313 if (free_buf) {
3314 free(host_ifconf);
3315 }
3316
3317 return ret;
3318 }
3319
3320 static IOCTLEntry ioctl_entries[] = {
3321 #define IOCTL(cmd, access, ...) \
3322 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3323 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3324 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3325 #include "ioctls.h"
3326 { 0, 0, },
3327 };
3328
3329 /* ??? Implement proper locking for ioctls. */
3330 /* do_ioctl() Must return target values and target errnos. */
3331 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3332 {
3333 const IOCTLEntry *ie;
3334 const argtype *arg_type;
3335 abi_long ret;
3336 uint8_t buf_temp[MAX_STRUCT_SIZE];
3337 int target_size;
3338 void *argptr;
3339
3340 ie = ioctl_entries;
3341 for(;;) {
3342 if (ie->target_cmd == 0) {
3343 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3344 return -TARGET_ENOSYS;
3345 }
3346 if (ie->target_cmd == cmd)
3347 break;
3348 ie++;
3349 }
3350 arg_type = ie->arg_type;
3351 #if defined(DEBUG)
3352 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3353 #endif
3354 if (ie->do_ioctl) {
3355 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3356 }
3357
3358 switch(arg_type[0]) {
3359 case TYPE_NULL:
3360 /* no argument */
3361 ret = get_errno(ioctl(fd, ie->host_cmd));
3362 break;
3363 case TYPE_PTRVOID:
3364 case TYPE_INT:
3365 /* int argment */
3366 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3367 break;
3368 case TYPE_PTR:
3369 arg_type++;
3370 target_size = thunk_type_size(arg_type, 0);
3371 switch(ie->access) {
3372 case IOC_R:
3373 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3374 if (!is_error(ret)) {
3375 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3376 if (!argptr)
3377 return -TARGET_EFAULT;
3378 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3379 unlock_user(argptr, arg, target_size);
3380 }
3381 break;
3382 case IOC_W:
3383 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3384 if (!argptr)
3385 return -TARGET_EFAULT;
3386 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3387 unlock_user(argptr, arg, 0);
3388 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3389 break;
3390 default:
3391 case IOC_RW:
3392 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3393 if (!argptr)
3394 return -TARGET_EFAULT;
3395 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3396 unlock_user(argptr, arg, 0);
3397 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3398 if (!is_error(ret)) {
3399 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3400 if (!argptr)
3401 return -TARGET_EFAULT;
3402 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3403 unlock_user(argptr, arg, target_size);
3404 }
3405 break;
3406 }
3407 break;
3408 default:
3409 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3410 (long)cmd, arg_type[0]);
3411 ret = -TARGET_ENOSYS;
3412 break;
3413 }
3414 return ret;
3415 }
3416
3417 static const bitmask_transtbl iflag_tbl[] = {
3418 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3419 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3420 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3421 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3422 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3423 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3424 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3425 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3426 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3427 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3428 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3429 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3430 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3431 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3432 { 0, 0, 0, 0 }
3433 };
3434
3435 static const bitmask_transtbl oflag_tbl[] = {
3436 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3437 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3438 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3439 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3440 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3441 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3442 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3443 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3444 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3445 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3446 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3447 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3448 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3449 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3450 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3451 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3452 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3453 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3454 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3455 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3456 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3457 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3458 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3459 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3460 { 0, 0, 0, 0 }
3461 };
3462
3463 static const bitmask_transtbl cflag_tbl[] = {
3464 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3465 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3466 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3467 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3468 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3469 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3470 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3471 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3472 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3473 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3474 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3475 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3476 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3477 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3478 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3479 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3480 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3481 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3482 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3483 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3484 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3485 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3486 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3487 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3488 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3489 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3490 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3491 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3492 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3493 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3494 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3495 { 0, 0, 0, 0 }
3496 };
3497
3498 static const bitmask_transtbl lflag_tbl[] = {
3499 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3500 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3501 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3502 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3503 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3504 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3505 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3506 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3507 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3508 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3509 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3510 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3511 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3512 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3513 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3514 { 0, 0, 0, 0 }
3515 };
3516
3517 static void target_to_host_termios (void *dst, const void *src)
3518 {
3519 struct host_termios *host = dst;
3520 const struct target_termios *target = src;
3521
3522 host->c_iflag =
3523 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3524 host->c_oflag =
3525 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3526 host->c_cflag =
3527 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3528 host->c_lflag =
3529 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3530 host->c_line = target->c_line;
3531
3532 memset(host->c_cc, 0, sizeof(host->c_cc));
3533 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3534 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3535 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3536 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3537 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3538 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3539 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3540 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3541 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3542 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3543 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3544 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3545 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3546 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3547 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3548 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3549 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3550 }
3551
3552 static void host_to_target_termios (void *dst, const void *src)
3553 {
3554 struct target_termios *target = dst;
3555 const struct host_termios *host = src;
3556
3557 target->c_iflag =
3558 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3559 target->c_oflag =
3560 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3561 target->c_cflag =
3562 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3563 target->c_lflag =
3564 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3565 target->c_line = host->c_line;
3566
3567 memset(target->c_cc, 0, sizeof(target->c_cc));
3568 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3569 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3570 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3571 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3572 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3573 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3574 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3575 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3576 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3577 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3578 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3579 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3580 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3581 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3582 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3583 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3584 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3585 }
3586
3587 static const StructEntry struct_termios_def = {
3588 .convert = { host_to_target_termios, target_to_host_termios },
3589 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3590 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3591 };
3592
3593 static bitmask_transtbl mmap_flags_tbl[] = {
3594 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3595 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3596 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3597 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3598 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3599 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3600 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3601 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3602 { 0, 0, 0, 0 }
3603 };
3604
3605 #if defined(TARGET_I386)
3606
3607 /* NOTE: there is really one LDT for all the threads */
3608 static uint8_t *ldt_table;
3609
3610 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3611 {
3612 int size;
3613 void *p;
3614
3615 if (!ldt_table)
3616 return 0;
3617 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3618 if (size > bytecount)
3619 size = bytecount;
3620 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3621 if (!p)
3622 return -TARGET_EFAULT;
3623 /* ??? Should this by byteswapped? */
3624 memcpy(p, ldt_table, size);
3625 unlock_user(p, ptr, size);
3626 return size;
3627 }
3628
3629 /* XXX: add locking support */
3630 static abi_long write_ldt(CPUX86State *env,
3631 abi_ulong ptr, unsigned long bytecount, int oldmode)
3632 {
3633 struct target_modify_ldt_ldt_s ldt_info;
3634 struct target_modify_ldt_ldt_s *target_ldt_info;
3635 int seg_32bit, contents, read_exec_only, limit_in_pages;
3636 int seg_not_present, useable, lm;
3637 uint32_t *lp, entry_1, entry_2;
3638
3639 if (bytecount != sizeof(ldt_info))
3640 return -TARGET_EINVAL;
3641 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3642 return -TARGET_EFAULT;
3643 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3644 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
3645 ldt_info.limit = tswap32(target_ldt_info->limit);
3646 ldt_info.flags = tswap32(target_ldt_info->flags);
3647 unlock_user_struct(target_ldt_info, ptr, 0);
3648
3649 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3650 return -TARGET_EINVAL;
3651 seg_32bit = ldt_info.flags & 1;
3652 contents = (ldt_info.flags >> 1) & 3;
3653 read_exec_only = (ldt_info.flags >> 3) & 1;
3654 limit_in_pages = (ldt_info.flags >> 4) & 1;
3655 seg_not_present = (ldt_info.flags >> 5) & 1;
3656 useable = (ldt_info.flags >> 6) & 1;
3657 #ifdef TARGET_ABI32
3658 lm = 0;
3659 #else
3660 lm = (ldt_info.flags >> 7) & 1;
3661 #endif
3662 if (contents == 3) {
3663 if (oldmode)
3664 return -TARGET_EINVAL;
3665 if (seg_not_present == 0)
3666 return -TARGET_EINVAL;
3667 }
3668 /* allocate the LDT */
3669 if (!ldt_table) {
3670 env->ldt.base = target_mmap(0,
3671 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3672 PROT_READ|PROT_WRITE,
3673 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3674 if (env->ldt.base == -1)
3675 return -TARGET_ENOMEM;
3676 memset(g2h(env->ldt.base), 0,
3677 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3678 env->ldt.limit = 0xffff;
3679 ldt_table = g2h(env->ldt.base);
3680 }
3681
3682 /* NOTE: same code as Linux kernel */
3683 /* Allow LDTs to be cleared by the user. */
3684 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3685 if (oldmode ||
3686 (contents == 0 &&
3687 read_exec_only == 1 &&
3688 seg_32bit == 0 &&
3689 limit_in_pages == 0 &&
3690 seg_not_present == 1 &&
3691 useable == 0 )) {
3692 entry_1 = 0;
3693 entry_2 = 0;
3694 goto install;
3695 }
3696 }
3697
3698 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3699 (ldt_info.limit & 0x0ffff);
3700 entry_2 = (ldt_info.base_addr & 0xff000000) |
3701 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3702 (ldt_info.limit & 0xf0000) |
3703 ((read_exec_only ^ 1) << 9) |
3704 (contents << 10) |
3705 ((seg_not_present ^ 1) << 15) |
3706 (seg_32bit << 22) |
3707 (limit_in_pages << 23) |
3708 (lm << 21) |
3709 0x7000;
3710 if (!oldmode)
3711 entry_2 |= (useable << 20);
3712
3713 /* Install the new entry ... */
3714 install:
3715 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3716 lp[0] = tswap32(entry_1);
3717 lp[1] = tswap32(entry_2);
3718 return 0;
3719 }
3720
3721 /* specific and weird i386 syscalls */
3722 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3723 unsigned long bytecount)
3724 {
3725 abi_long ret;
3726
3727 switch (func) {
3728 case 0:
3729 ret = read_ldt(ptr, bytecount);
3730 break;
3731 case 1:
3732 ret = write_ldt(env, ptr, bytecount, 1);
3733 break;
3734 case 0x11:
3735 ret = write_ldt(env, ptr, bytecount, 0);
3736 break;
3737 default:
3738 ret = -TARGET_ENOSYS;
3739 break;
3740 }
3741 return ret;
3742 }
3743
3744 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3745 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3746 {
3747 uint64_t *gdt_table = g2h(env->gdt.base);
3748 struct target_modify_ldt_ldt_s ldt_info;
3749 struct target_modify_ldt_ldt_s *target_ldt_info;
3750 int seg_32bit, contents, read_exec_only, limit_in_pages;
3751 int seg_not_present, useable, lm;
3752 uint32_t *lp, entry_1, entry_2;
3753 int i;
3754
3755 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3756 if (!target_ldt_info)
3757 return -TARGET_EFAULT;
3758 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3759 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
3760 ldt_info.limit = tswap32(target_ldt_info->limit);
3761 ldt_info.flags = tswap32(target_ldt_info->flags);
3762 if (ldt_info.entry_number == -1) {
3763 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3764 if (gdt_table[i] == 0) {
3765 ldt_info.entry_number = i;
3766 target_ldt_info->entry_number = tswap32(i);
3767 break;
3768 }
3769 }
3770 }
3771 unlock_user_struct(target_ldt_info, ptr, 1);
3772
3773 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3774 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3775 return -TARGET_EINVAL;
3776 seg_32bit = ldt_info.flags & 1;
3777 contents = (ldt_info.flags >> 1) & 3;
3778 read_exec_only = (ldt_info.flags >> 3) & 1;
3779 limit_in_pages = (ldt_info.flags >> 4) & 1;
3780 seg_not_present = (ldt_info.flags >> 5) & 1;
3781 useable = (ldt_info.flags >> 6) & 1;
3782 #ifdef TARGET_ABI32
3783 lm = 0;
3784 #else
3785 lm = (ldt_info.flags >> 7) & 1;
3786 #endif
3787
3788 if (contents == 3) {
3789 if (seg_not_present == 0)
3790 return -TARGET_EINVAL;
3791 }
3792
3793 /* NOTE: same code as Linux kernel */
3794 /* Allow LDTs to be cleared by the user. */
3795 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3796 if ((contents == 0 &&
3797 read_exec_only == 1 &&
3798 seg_32bit == 0 &&
3799 limit_in_pages == 0 &&
3800 seg_not_present == 1 &&
3801 useable == 0 )) {
3802 entry_1 = 0;
3803 entry_2 = 0;
3804 goto install;
3805 }
3806 }
3807
3808 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3809 (ldt_info.limit & 0x0ffff);
3810 entry_2 = (ldt_info.base_addr & 0xff000000) |
3811 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3812 (ldt_info.limit & 0xf0000) |
3813 ((read_exec_only ^ 1) << 9) |
3814 (contents << 10) |
3815 ((seg_not_present ^ 1) << 15) |
3816 (seg_32bit << 22) |
3817 (limit_in_pages << 23) |
3818 (useable << 20) |
3819 (lm << 21) |
3820 0x7000;
3821
3822 /* Install the new entry ... */
3823 install:
3824 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3825 lp[0] = tswap32(entry_1);
3826 lp[1] = tswap32(entry_2);
3827 return 0;
3828 }
3829
3830 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3831 {
3832 struct target_modify_ldt_ldt_s *target_ldt_info;
3833 uint64_t *gdt_table = g2h(env->gdt.base);
3834 uint32_t base_addr, limit, flags;
3835 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3836 int seg_not_present, useable, lm;
3837 uint32_t *lp, entry_1, entry_2;
3838
3839 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3840 if (!target_ldt_info)
3841 return -TARGET_EFAULT;
3842 idx = tswap32(target_ldt_info->entry_number);
3843 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3844 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3845 unlock_user_struct(target_ldt_info, ptr, 1);
3846 return -TARGET_EINVAL;
3847 }
3848 lp = (uint32_t *)(gdt_table + idx);
3849 entry_1 = tswap32(lp[0]);
3850 entry_2 = tswap32(lp[1]);
3851
3852 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3853 contents = (entry_2 >> 10) & 3;
3854 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3855 seg_32bit = (entry_2 >> 22) & 1;
3856 limit_in_pages = (entry_2 >> 23) & 1;
3857 useable = (entry_2 >> 20) & 1;
3858 #ifdef TARGET_ABI32
3859 lm = 0;
3860 #else
3861 lm = (entry_2 >> 21) & 1;
3862 #endif
3863 flags = (seg_32bit << 0) | (contents << 1) |
3864 (read_exec_only << 3) | (limit_in_pages << 4) |
3865 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3866 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3867 base_addr = (entry_1 >> 16) |
3868 (entry_2 & 0xff000000) |
3869 ((entry_2 & 0xff) << 16);
3870 target_ldt_info->base_addr = tswapal(base_addr);
3871 target_ldt_info->limit = tswap32(limit);
3872 target_ldt_info->flags = tswap32(flags);
3873 unlock_user_struct(target_ldt_info, ptr, 1);
3874 return 0;
3875 }
3876 #endif /* TARGET_I386 && TARGET_ABI32 */
3877
3878 #ifndef TARGET_ABI32
3879 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3880 {
3881 abi_long ret = 0;
3882 abi_ulong val;
3883 int idx;
3884
3885 switch(code) {
3886 case TARGET_ARCH_SET_GS:
3887 case TARGET_ARCH_SET_FS:
3888 if (code == TARGET_ARCH_SET_GS)
3889 idx = R_GS;
3890 else
3891 idx = R_FS;
3892 cpu_x86_load_seg(env, idx, 0);
3893 env->segs[idx].base = addr;
3894 break;
3895 case TARGET_ARCH_GET_GS:
3896 case TARGET_ARCH_GET_FS:
3897 if (code == TARGET_ARCH_GET_GS)
3898 idx = R_GS;
3899 else
3900 idx = R_FS;
3901 val = env->segs[idx].base;
3902 if (put_user(val, addr, abi_ulong))
3903 ret = -TARGET_EFAULT;
3904 break;
3905 default:
3906 ret = -TARGET_EINVAL;
3907 break;
3908 }
3909 return ret;
3910 }
3911 #endif
3912
3913 #endif /* defined(TARGET_I386) */
3914
3915 #define NEW_STACK_SIZE 0x40000
3916
3917 #if defined(CONFIG_USE_NPTL)
3918
3919 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3920 typedef struct {
3921 CPUState *env;
3922 pthread_mutex_t mutex;
3923 pthread_cond_t cond;
3924 pthread_t thread;
3925 uint32_t tid;
3926 abi_ulong child_tidptr;
3927 abi_ulong parent_tidptr;
3928 sigset_t sigmask;
3929 } new_thread_info;
3930
3931 static void *clone_func(void *arg)
3932 {
3933 new_thread_info *info = arg;
3934 CPUState *env;
3935 TaskState *ts;
3936
3937 env = info->env;
3938 thread_env = env;
3939 ts = (TaskState *)thread_env->opaque;
3940 info->tid = gettid();
3941 env->host_tid = info->tid;
3942 task_settid(ts);
3943 if (info->child_tidptr)
3944 put_user_u32(info->tid, info->child_tidptr);
3945 if (info->parent_tidptr)
3946 put_user_u32(info->tid, info->parent_tidptr);
3947 /* Enable signals. */
3948 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3949 /* Signal to the parent that we're ready. */
3950 pthread_mutex_lock(&info->mutex);
3951 pthread_cond_broadcast(&info->cond);
3952 pthread_mutex_unlock(&info->mutex);
3953 /* Wait until the parent has finshed initializing the tls state. */
3954 pthread_mutex_lock(&clone_lock);
3955 pthread_mutex_unlock(&clone_lock);
3956 cpu_loop(env);
3957 /* never exits */
3958 return NULL;
3959 }
3960 #else
3961
3962 static int clone_func(void *arg)
3963 {
3964 CPUState *env = arg;
3965 cpu_loop(env);
3966 /* never exits */
3967 return 0;
3968 }
3969 #endif
3970
3971 /* do_fork() Must return host values and target errnos (unlike most
3972 do_*() functions). */
3973 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3974 abi_ulong parent_tidptr, target_ulong newtls,
3975 abi_ulong child_tidptr)
3976 {
3977 int ret;
3978 TaskState *ts;
3979 CPUState *new_env;
3980 #if defined(CONFIG_USE_NPTL)
3981 unsigned int nptl_flags;
3982 sigset_t sigmask;
3983 #else
3984 uint8_t *new_stack;
3985 #endif
3986
3987 /* Emulate vfork() with fork() */
3988 if (flags & CLONE_VFORK)
3989 flags &= ~(CLONE_VFORK | CLONE_VM);
3990
3991 if (flags & CLONE_VM) {
3992 TaskState *parent_ts = (TaskState *)env->opaque;
3993 #if defined(CONFIG_USE_NPTL)
3994 new_thread_info info;
3995 pthread_attr_t attr;
3996 #endif
3997 ts = g_malloc0(sizeof(TaskState));
3998 init_task_state(ts);
3999 /* we create a new CPU instance. */
4000 new_env = cpu_copy(env);
4001 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
4002 cpu_reset(new_env);
4003 #endif
4004 /* Init regs that differ from the parent. */
4005 cpu_clone_regs(new_env, newsp);
4006 new_env->opaque = ts;
4007 ts->bprm = parent_ts->bprm;
4008 ts->info = parent_ts->info;
4009 #if defined(CONFIG_USE_NPTL)
4010 nptl_flags = flags;
4011 flags &= ~CLONE_NPTL_FLAGS2;
4012
4013 if (nptl_flags & CLONE_CHILD_CLEARTID) {
4014 ts->child_tidptr = child_tidptr;
4015 }
4016
4017 if (nptl_flags & CLONE_SETTLS)
4018 cpu_set_tls (new_env, newtls);
4019
4020 /* Grab a mutex so that thread setup appears atomic. */
4021 pthread_mutex_lock(&clone_lock);
4022
4023 memset(&info, 0, sizeof(info));
4024 pthread_mutex_init(&info.mutex, NULL);
4025 pthread_mutex_lock(&info.mutex);
4026 pthread_cond_init(&info.cond, NULL);
4027 info.env = new_env;
4028 if (nptl_flags & CLONE_CHILD_SETTID)
4029 info.child_tidptr = child_tidptr;
4030 if (nptl_flags & CLONE_PARENT_SETTID)
4031 info.parent_tidptr = parent_tidptr;
4032
4033 ret = pthread_attr_init(&attr);
4034 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
4035 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
4036 /* It is not safe to deliver signals until the child has finished
4037 initializing, so temporarily block all signals. */
4038 sigfillset(&sigmask);
4039 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
4040
4041 ret = pthread_create(&info.thread, &attr, clone_func, &info);
4042 /* TODO: Free new CPU state if thread creation failed. */
4043
4044 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
4045 pthread_attr_destroy(&attr);
4046 if (ret == 0) {
4047 /* Wait for the child to initialize. */
4048 pthread_cond_wait(&info.cond, &info.mutex);
4049 ret = info.tid;
4050 if (flags & CLONE_PARENT_SETTID)
4051 put_user_u32(ret, parent_tidptr);
4052 } else {
4053 ret = -1;
4054 }
4055 pthread_mutex_unlock(&info.mutex);
4056 pthread_cond_destroy(&info.cond);
4057 pthread_mutex_destroy(&info.mutex);
4058 pthread_mutex_unlock(&clone_lock);
4059 #else
4060 if (flags & CLONE_NPTL_FLAGS2)
4061 return -EINVAL;
4062 /* This is probably going to die very quickly, but do it anyway. */
4063 new_stack = g_malloc0 (NEW_STACK_SIZE);
4064 #ifdef __ia64__
4065 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env);
4066 #else
4067 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
4068 #endif
4069 #endif
4070 } else {
4071 /* if no CLONE_VM, we consider it is a fork */
4072 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
4073 return -EINVAL;
4074 fork_start();
4075 ret = fork();
4076 if (ret == 0) {
4077 /* Child Process. */
4078 cpu_clone_regs(env, newsp);
4079 fork_end(1);
4080 #if defined(CONFIG_USE_NPTL)
4081 /* There is a race condition here. The parent process could
4082 theoretically read the TID in the child process before the child
4083 tid is set. This would require using either ptrace
4084 (not implemented) or having *_tidptr to point at a shared memory
4085 mapping. We can't repeat the spinlock hack used above because
4086 the child process gets its own copy of the lock. */
4087 if (flags & CLONE_CHILD_SETTID)
4088 put_user_u32(gettid(), child_tidptr);
4089 if (flags & CLONE_PARENT_SETTID)
4090 put_user_u32(gettid(), parent_tidptr);
4091 ts = (TaskState *)env->opaque;
4092 if (flags & CLONE_SETTLS)
4093 cpu_set_tls (env, newtls);
4094 if (flags & CLONE_CHILD_CLEARTID)
4095 ts->child_tidptr = child_tidptr;
4096 #endif
4097 } else {
4098 fork_end(0);
4099 }
4100 }
4101 return ret;
4102 }
4103
4104 /* warning : doesn't handle linux specific flags... */
4105 static int target_to_host_fcntl_cmd(int cmd)
4106 {
4107 switch(cmd) {
4108 case TARGET_F_DUPFD:
4109 case TARGET_F_GETFD:
4110 case TARGET_F_SETFD:
4111 case TARGET_F_GETFL:
4112 case TARGET_F_SETFL:
4113 return cmd;
4114 case TARGET_F_GETLK:
4115 return F_GETLK;
4116 case TARGET_F_SETLK:
4117 return F_SETLK;
4118 case TARGET_F_SETLKW:
4119 return F_SETLKW;
4120 case TARGET_F_GETOWN:
4121 return F_GETOWN;
4122 case TARGET_F_SETOWN:
4123 return F_SETOWN;
4124 case TARGET_F_GETSIG:
4125 return F_GETSIG;
4126 case TARGET_F_SETSIG:
4127 return F_SETSIG;
4128 #if TARGET_ABI_BITS == 32
4129 case TARGET_F_GETLK64:
4130 return F_GETLK64;
4131 case TARGET_F_SETLK64:
4132 return F_SETLK64;
4133 case TARGET_F_SETLKW64:
4134 return F_SETLKW64;
4135 #endif
4136 case TARGET_F_SETLEASE:
4137 return F_SETLEASE;
4138 case TARGET_F_GETLEASE:
4139 return F_GETLEASE;
4140 #ifdef F_DUPFD_CLOEXEC
4141 case TARGET_F_DUPFD_CLOEXEC:
4142 return F_DUPFD_CLOEXEC;
4143 #endif
4144 case TARGET_F_NOTIFY:
4145 return F_NOTIFY;
4146 default:
4147 return -TARGET_EINVAL;
4148 }
4149 return -TARGET_EINVAL;
4150 }
4151
4152 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
4153 {
4154 struct flock fl;
4155 struct target_flock *target_fl;
4156 struct flock64 fl64;
4157 struct target_flock64 *target_fl64;
4158 abi_long ret;
4159 int host_cmd = target_to_host_fcntl_cmd(cmd);
4160
4161 if (host_cmd == -TARGET_EINVAL)
4162 return host_cmd;
4163
4164 switch(cmd) {
4165 case TARGET_F_GETLK:
4166 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
4167 return -TARGET_EFAULT;
4168 fl.l_type = tswap16(target_fl->l_type);
4169 fl.l_whence = tswap16(target_fl->l_whence);
4170 fl.l_start = tswapal(target_fl->l_start);
4171 fl.l_len = tswapal(target_fl->l_len);
4172 fl.l_pid = tswap32(target_fl->l_pid);
4173 unlock_user_struct(target_fl, arg, 0);
4174 ret = get_errno(fcntl(fd, host_cmd, &fl));
4175 if (ret == 0) {
4176 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
4177 return -TARGET_EFAULT;
4178 target_fl->l_type = tswap16(fl.l_type);
4179 target_fl->l_whence = tswap16(fl.l_whence);
4180 target_fl->l_start = tswapal(fl.l_start);
4181 target_fl->l_len = tswapal(fl.l_len);
4182 target_fl->l_pid = tswap32(fl.l_pid);
4183 unlock_user_struct(target_fl, arg, 1);
4184 }
4185 break;
4186
4187 case TARGET_F_SETLK:
4188 case TARGET_F_SETLKW:
4189 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
4190 return -TARGET_EFAULT;
4191 fl.l_type = tswap16(target_fl->l_type);
4192 fl.l_whence = tswap16(target_fl->l_whence);
4193 fl.l_start = tswapal(target_fl->l_start);
4194 fl.l_len = tswapal(target_fl->l_len);
4195 fl.l_pid = tswap32(target_fl->l_pid);
4196 unlock_user_struct(target_fl, arg, 0);
4197 ret = get_errno(fcntl(fd, host_cmd, &fl));
4198 break;
4199
4200 case TARGET_F_GETLK64:
4201 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4202 return -TARGET_EFAULT;
4203 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
4204 fl64.l_whence = tswap16(target_fl64->l_whence);
4205 fl64.l_start = tswap64(target_fl64->l_start);
4206 fl64.l_len = tswap64(target_fl64->l_len);
4207 fl64.l_pid = tswap32(target_fl64->l_pid);
4208 unlock_user_struct(target_fl64, arg, 0);
4209 ret = get_errno(fcntl(fd, host_cmd, &fl64));
4210 if (ret == 0) {
4211 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
4212 return -TARGET_EFAULT;
4213 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
4214 target_fl64->l_whence = tswap16(fl64.l_whence);
4215 target_fl64->l_start = tswap64(fl64.l_start);
4216 target_fl64->l_len = tswap64(fl64.l_len);
4217 target_fl64->l_pid = tswap32(fl64.l_pid);
4218 unlock_user_struct(target_fl64, arg, 1);
4219 }
4220 break;
4221 case TARGET_F_SETLK64:
4222 case TARGET_F_SETLKW64:
4223 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4224 return -TARGET_EFAULT;
4225 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
4226 fl64.l_whence = tswap16(target_fl64->l_whence);
4227 fl64.l_start = tswap64(target_fl64->l_start);
4228 fl64.l_len = tswap64(target_fl64->l_len);
4229 fl64.l_pid = tswap32(target_fl64->l_pid);
4230 unlock_user_struct(target_fl64, arg, 0);
4231 ret = get_errno(fcntl(fd, host_cmd, &fl64));
4232 break;
4233
4234 case TARGET_F_GETFL:
4235 ret = get_errno(fcntl(fd, host_cmd, arg));
4236 if (ret >= 0) {
4237 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
4238 }
4239 break;
4240
4241 case TARGET_F_SETFL:
4242 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
4243 break;
4244
4245 case TARGET_F_SETOWN:
4246 case TARGET_F_GETOWN:
4247 case TARGET_F_SETSIG:
4248 case TARGET_F_GETSIG:
4249 case TARGET_F_SETLEASE:
4250 case TARGET_F_GETLEASE:
4251 ret = get_errno(fcntl(fd, host_cmd, arg));
4252 break;
4253
4254 default:
4255 ret = get_errno(fcntl(fd, cmd, arg));
4256 break;
4257 }
4258 return ret;
4259 }
4260
4261 #ifdef USE_UID16
4262
4263 static inline int high2lowuid(int uid)
4264 {
4265 if (uid > 65535)
4266 return 65534;
4267 else
4268 return uid;
4269 }
4270
4271 static inline int high2lowgid(int gid)
4272 {
4273 if (gid > 65535)
4274 return 65534;
4275 else
4276 return gid;
4277 }
4278
4279 static inline int low2highuid(int uid)
4280 {
4281 if ((int16_t)uid == -1)
4282 return -1;
4283 else
4284 return uid;
4285 }
4286
4287 static inline int low2highgid(int gid)
4288 {
4289 if ((int16_t)gid == -1)
4290 return -1;
4291 else
4292 return gid;
4293 }
4294 static inline int tswapid(int id)
4295 {
4296 return tswap16(id);
4297 }
4298 #else /* !USE_UID16 */
4299 static inline int high2lowuid(int uid)
4300 {
4301 return uid;
4302 }
4303 static inline int high2lowgid(int gid)
4304 {
4305 return gid;
4306 }
4307 static inline int low2highuid(int uid)
4308 {
4309 return uid;
4310 }
4311 static inline int low2highgid(int gid)
4312 {
4313 return gid;
4314 }
4315 static inline int tswapid(int id)
4316 {
4317 return tswap32(id);
4318 }
4319 #endif /* USE_UID16 */
4320
4321 void syscall_init(void)
4322 {
4323 IOCTLEntry *ie;
4324 const argtype *arg_type;
4325 int size;
4326 int i;
4327
4328 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
4329 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
4330 #include "syscall_types.h"
4331 #undef STRUCT
4332 #undef STRUCT_SPECIAL
4333
4334 /* we patch the ioctl size if necessary. We rely on the fact that
4335 no ioctl has all the bits at '1' in the size field */
4336 ie = ioctl_entries;
4337 while (ie->target_cmd != 0) {
4338 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4339 TARGET_IOC_SIZEMASK) {
4340 arg_type = ie->arg_type;
4341 if (arg_type[0] != TYPE_PTR) {
4342 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
4343 ie->target_cmd);
4344 exit(1);
4345 }
4346 arg_type++;
4347 size = thunk_type_size(arg_type, 0);
4348 ie->target_cmd = (ie->target_cmd &
4349 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4350 (size << TARGET_IOC_SIZESHIFT);
4351 }
4352
4353 /* Build target_to_host_errno_table[] table from
4354 * host_to_target_errno_table[]. */
4355 for (i=0; i < ERRNO_TABLE_SIZE; i++)
4356 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4357
4358 /* automatic consistency check if same arch */
4359 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4360 (defined(__x86_64__) && defined(TARGET_X86_64))
4361 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4362 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4363 ie->name, ie->target_cmd, ie->host_cmd);
4364 }
4365 #endif
4366 ie++;
4367 }
4368 }
4369
4370 #if TARGET_ABI_BITS == 32
4371 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4372 {
4373 #ifdef TARGET_WORDS_BIGENDIAN
4374 return ((uint64_t)word0 << 32) | word1;
4375 #else
4376 return ((uint64_t)word1 << 32) | word0;
4377 #endif
4378 }
4379 #else /* TARGET_ABI_BITS == 32 */
4380 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4381 {
4382 return word0;
4383 }
4384 #endif /* TARGET_ABI_BITS != 32 */
4385
4386 #ifdef TARGET_NR_truncate64
4387 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4388 abi_long arg2,
4389 abi_long arg3,
4390 abi_long arg4)
4391 {
4392 if (regpairs_aligned(cpu_env)) {
4393 arg2 = arg3;
4394 arg3 = arg4;
4395 }
4396 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4397 }
4398 #endif
4399
4400 #ifdef TARGET_NR_ftruncate64
4401 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4402 abi_long arg2,
4403 abi_long arg3,
4404 abi_long arg4)
4405 {
4406 if (regpairs_aligned(cpu_env)) {
4407 arg2 = arg3;
4408 arg3 = arg4;
4409 }
4410 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4411 }
4412 #endif
4413
4414 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4415 abi_ulong target_addr)
4416 {
4417 struct target_timespec *target_ts;
4418
4419 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4420 return -TARGET_EFAULT;
4421 host_ts->tv_sec = tswapal(target_ts->tv_sec);
4422 host_ts->tv_nsec = tswapal(target_ts->tv_nsec);
4423 unlock_user_struct(target_ts, target_addr, 0);
4424 return 0;
4425 }
4426
4427 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4428 struct timespec *host_ts)
4429 {
4430 struct target_timespec *target_ts;
4431
4432 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4433 return -TARGET_EFAULT;
4434 target_ts->tv_sec = tswapal(host_ts->tv_sec);
4435 target_ts->tv_nsec = tswapal(host_ts->tv_nsec);
4436 unlock_user_struct(target_ts, target_addr, 1);
4437 return 0;
4438 }
4439
4440 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
4441 static inline abi_long host_to_target_stat64(void *cpu_env,
4442 abi_ulong target_addr,
4443 struct stat *host_st)
4444 {
4445 #ifdef TARGET_ARM
4446 if (((CPUARMState *)cpu_env)->eabi) {
4447 struct target_eabi_stat64 *target_st;
4448
4449 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4450 return -TARGET_EFAULT;
4451 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4452 __put_user(host_st->st_dev, &target_st->st_dev);
4453 __put_user(host_st->st_ino, &target_st->st_ino);
4454 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4455 __put_user(host_st->st_ino, &target_st->__st_ino);
4456 #endif
4457 __put_user(host_st->st_mode, &target_st->st_mode);
4458 __put_user(host_st->st_nlink, &target_st->st_nlink);
4459 __put_user(host_st->st_uid, &target_st->st_uid);
4460 __put_user(host_st->st_gid, &target_st->st_gid);
4461 __put_user(host_st->st_rdev, &target_st->st_rdev);
4462 __put_user(host_st->st_size, &target_st->st_size);
4463 __put_user(host_st->st_blksize, &target_st->st_blksize);
4464 __put_user(host_st->st_blocks, &target_st->st_blocks);
4465 __put_user(host_st->st_atime, &target_st->target_st_atime);
4466 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4467 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4468 unlock_user_struct(target_st, target_addr, 1);
4469 } else
4470 #endif
4471 {
4472 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
4473 struct target_stat *target_st;
4474 #else
4475 struct target_stat64 *target_st;
4476 #endif
4477
4478 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4479 return -TARGET_EFAULT;
4480 memset(target_st, 0, sizeof(*target_st));
4481 __put_user(host_st->st_dev, &target_st->st_dev);
4482 __put_user(host_st->st_ino, &target_st->st_ino);
4483 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4484 __put_user(host_st->st_ino, &target_st->__st_ino);
4485 #endif
4486 __put_user(host_st->st_mode, &target_st->st_mode);
4487 __put_user(host_st->st_nlink, &target_st->st_nlink);
4488 __put_user(host_st->st_uid, &target_st->st_uid);
4489 __put_user(host_st->st_gid, &target_st->st_gid);
4490 __put_user(host_st->st_rdev, &target_st->st_rdev);
4491 /* XXX: better use of kernel struct */
4492 __put_user(host_st->st_size, &target_st->st_size);
4493 __put_user(host_st->st_blksize, &target_st->st_blksize);
4494 __put_user(host_st->st_blocks, &target_st->st_blocks);
4495 __put_user(host_st->st_atime, &target_st->target_st_atime);
4496 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4497 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4498 unlock_user_struct(target_st, target_addr, 1);
4499 }
4500
4501 return 0;
4502 }
4503 #endif
4504
4505 #if defined(CONFIG_USE_NPTL)
4506 /* ??? Using host futex calls even when target atomic operations
4507 are not really atomic probably breaks things. However implementing
4508 futexes locally would make futexes shared between multiple processes
4509 tricky. However they're probably useless because guest atomic
4510 operations won't work either. */
4511 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4512 target_ulong uaddr2, int val3)
4513 {
4514 struct timespec ts, *pts;
4515 int base_op;
4516
4517 /* ??? We assume FUTEX_* constants are the same on both host
4518 and target. */
4519 #ifdef FUTEX_CMD_MASK
4520 base_op = op & FUTEX_CMD_MASK;
4521 #else
4522 base_op = op;
4523 #endif
4524 switch (base_op) {
4525 case FUTEX_WAIT:
4526 if (timeout) {
4527 pts = &ts;
4528 target_to_host_timespec(pts, timeout);
4529 } else {
4530 pts = NULL;
4531 }
4532 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4533 pts, NULL, 0));
4534 case FUTEX_WAKE:
4535 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4536 case FUTEX_FD:
4537 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4538 case FUTEX_REQUEUE:
4539 case FUTEX_CMP_REQUEUE:
4540 case FUTEX_WAKE_OP:
4541 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4542 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4543 But the prototype takes a `struct timespec *'; insert casts
4544 to satisfy the compiler. We do not need to tswap TIMEOUT
4545 since it's not compared to guest memory. */
4546 pts = (struct timespec *)(uintptr_t) timeout;
4547 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4548 g2h(uaddr2),
4549 (base_op == FUTEX_CMP_REQUEUE
4550 ? tswap32(val3)
4551 : val3)));
4552 default:
4553 return -TARGET_ENOSYS;
4554 }
4555 }
4556 #endif
4557
4558 /* Map host to target signal numbers for the wait family of syscalls.
4559 Assume all other status bits are the same. */
4560 static int host_to_target_waitstatus(int status)
4561 {
4562 if (WIFSIGNALED(status)) {
4563 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4564 }
4565 if (WIFSTOPPED(status)) {
4566 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4567 | (status & 0xff);
4568 }
4569 return status;
4570 }
4571
4572 int get_osversion(void)
4573 {
4574 static int osversion;
4575 struct new_utsname buf;
4576 const char *s;
4577 int i, n, tmp;
4578 if (osversion)
4579 return osversion;
4580 if (qemu_uname_release && *qemu_uname_release) {
4581 s = qemu_uname_release;
4582 } else {
4583 if (sys_uname(&buf))
4584 return 0;
4585 s = buf.release;
4586 }
4587 tmp = 0;
4588 for (i = 0; i < 3; i++) {
4589 n = 0;
4590 while (*s >= '0' && *s <= '9') {
4591 n *= 10;
4592 n += *s - '0';
4593 s++;
4594 }
4595 tmp = (tmp << 8) + n;
4596 if (*s == '.')
4597 s++;
4598 }
4599 osversion = tmp;
4600 return osversion;
4601 }
4602
4603 /* do_syscall() should always have a single exit point at the end so
4604 that actions, such as logging of syscall results, can be performed.
4605 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4606 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4607 abi_long arg2, abi_long arg3, abi_long arg4,
4608 abi_long arg5, abi_long arg6, abi_long arg7,
4609 abi_long arg8)
4610 {
4611 abi_long ret;
4612 struct stat st;
4613 struct statfs stfs;
4614 void *p;
4615
4616 #ifdef DEBUG
4617 gemu_log("syscall %d", num);
4618 #endif
4619 if(do_strace)
4620 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4621
4622 switch(num) {
4623 case TARGET_NR_exit:
4624 #ifdef CONFIG_USE_NPTL
4625 /* In old applications this may be used to implement _exit(2).
4626 However in threaded applictions it is used for thread termination,
4627 and _exit_group is used for application termination.
4628 Do thread termination if we have more then one thread. */
4629 /* FIXME: This probably breaks if a signal arrives. We should probably
4630 be disabling signals. */
4631 if (first_cpu->next_cpu) {
4632 TaskState *ts;
4633 CPUState **lastp;
4634 CPUState *p;
4635
4636 cpu_list_lock();
4637 lastp = &first_cpu;
4638 p = first_cpu;
4639 while (p && p != (CPUState *)cpu_env) {
4640 lastp = &p->next_cpu;
4641 p = p->next_cpu;
4642 }
4643 /* If we didn't find the CPU for this thread then something is
4644 horribly wrong. */
4645 if (!p)
4646 abort();
4647 /* Remove the CPU from the list. */
4648 *lastp = p->next_cpu;
4649 cpu_list_unlock();
4650 ts = ((CPUState *)cpu_env)->opaque;
4651 if (ts->child_tidptr) {
4652 put_user_u32(0, ts->child_tidptr);
4653 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4654 NULL, NULL, 0);
4655 }
4656 thread_env = NULL;
4657 g_free(cpu_env);
4658 g_free(ts);
4659 pthread_exit(NULL);
4660 }
4661 #endif
4662 #ifdef TARGET_GPROF
4663 _mcleanup();
4664 #endif
4665 gdb_exit(cpu_env, arg1);
4666 _exit(arg1);
4667 ret = 0; /* avoid warning */
4668 break;
4669 case TARGET_NR_read:
4670 if (arg3 == 0)
4671 ret = 0;
4672 else {
4673 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4674 goto efault;
4675 ret = get_errno(read(arg1, p, arg3));
4676 unlock_user(p, arg2, ret);
4677 }
4678 break;
4679 case TARGET_NR_write:
4680 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4681 goto efault;
4682 ret = get_errno(write(arg1, p, arg3));
4683 unlock_user(p, arg2, 0);
4684 break;
4685 case TARGET_NR_open:
4686 if (!(p = lock_user_string(arg1)))
4687 goto efault;
4688 ret = get_errno(open(path(p),
4689 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4690 arg3));
4691 unlock_user(p, arg1, 0);
4692 break;
4693 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4694 case TARGET_NR_openat:
4695 if (!(p = lock_user_string(arg2)))
4696 goto efault;
4697 ret = get_errno(sys_openat(arg1,
4698 path(p),
4699 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4700 arg4));
4701 unlock_user(p, arg2, 0);
4702 break;
4703 #endif
4704 case TARGET_NR_close:
4705 ret = get_errno(close(arg1));
4706 break;
4707 case TARGET_NR_brk:
4708 ret = do_brk(arg1);
4709 break;
4710 case TARGET_NR_fork:
4711 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4712 break;
4713 #ifdef TARGET_NR_waitpid
4714 case TARGET_NR_waitpid:
4715 {
4716 int status;
4717 ret = get_errno(waitpid(arg1, &status, arg3));
4718 if (!is_error(ret) && arg2
4719 && put_user_s32(host_to_target_waitstatus(status), arg2))
4720 goto efault;
4721 }
4722 break;
4723 #endif
4724 #ifdef TARGET_NR_waitid
4725 case TARGET_NR_waitid:
4726 {
4727 siginfo_t info;
4728 info.si_pid = 0;
4729 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4730 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4731 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4732 goto efault;
4733 host_to_target_siginfo(p, &info);
4734 unlock_user(p, arg3, sizeof(target_siginfo_t));
4735 }
4736 }
4737 break;
4738 #endif
4739 #ifdef TARGET_NR_creat /* not on alpha */
4740 case TARGET_NR_creat:
4741 if (!(p = lock_user_string(arg1)))
4742 goto efault;
4743 ret = get_errno(creat(p, arg2));
4744 unlock_user(p, arg1, 0);
4745 break;
4746 #endif
4747 case TARGET_NR_link:
4748 {
4749 void * p2;
4750 p = lock_user_string(arg1);
4751 p2 = lock_user_string(arg2);
4752 if (!p || !p2)
4753 ret = -TARGET_EFAULT;
4754 else
4755 ret = get_errno(link(p, p2));
4756 unlock_user(p2, arg2, 0);
4757 unlock_user(p, arg1, 0);
4758 }
4759 break;
4760 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4761 case TARGET_NR_linkat:
4762 {
4763 void * p2 = NULL;
4764 if (!arg2 || !arg4)
4765 goto efault;
4766 p = lock_user_string(arg2);
4767 p2 = lock_user_string(arg4);
4768 if (!p || !p2)
4769 ret = -TARGET_EFAULT;
4770 else
4771 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4772 unlock_user(p, arg2, 0);
4773 unlock_user(p2, arg4, 0);
4774 }
4775 break;
4776 #endif
4777 case TARGET_NR_unlink:
4778 if (!(p = lock_user_string(arg1)))
4779 goto efault;
4780 ret = get_errno(unlink(p));
4781 unlock_user(p, arg1, 0);
4782 break;
4783 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4784 case TARGET_NR_unlinkat:
4785 if (!(p = lock_user_string(arg2)))
4786 goto efault;
4787 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4788 unlock_user(p, arg2, 0);
4789 break;
4790 #endif
4791 case TARGET_NR_execve:
4792 {
4793 char **argp, **envp;
4794 int argc, envc;
4795 abi_ulong gp;
4796 abi_ulong guest_argp;
4797 abi_ulong guest_envp;
4798 abi_ulong addr;
4799 char **q;
4800
4801 argc = 0;
4802 guest_argp = arg2;
4803 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4804 if (get_user_ual(addr, gp))
4805 goto efault;
4806 if (!addr)
4807 break;
4808 argc++;
4809 }
4810 envc = 0;
4811 guest_envp = arg3;
4812 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4813 if (get_user_ual(addr, gp))
4814 goto efault;
4815 if (!addr)
4816 break;
4817 envc++;
4818 }
4819
4820 argp = alloca((argc + 1) * sizeof(void *));
4821 envp = alloca((envc + 1) * sizeof(void *));
4822
4823 for (gp = guest_argp, q = argp; gp;
4824 gp += sizeof(abi_ulong), q++) {
4825 if (get_user_ual(addr, gp))
4826 goto execve_efault;
4827 if (!addr)
4828 break;
4829 if (!(*q = lock_user_string(addr)))
4830 goto execve_efault;
4831 }
4832 *q = NULL;
4833
4834 for (gp = guest_envp, q = envp; gp;
4835 gp += sizeof(abi_ulong), q++) {
4836 if (get_user_ual(addr, gp))
4837 goto execve_efault;
4838 if (!addr)
4839 break;
4840 if (!(*q = lock_user_string(addr)))
4841 goto execve_efault;
4842 }
4843 *q = NULL;
4844
4845 if (!(p = lock_user_string(arg1)))
4846 goto execve_efault;
4847 ret = get_errno(execve(p, argp, envp));
4848 unlock_user(p, arg1, 0);
4849
4850 goto execve_end;
4851
4852 execve_efault:
4853 ret = -TARGET_EFAULT;
4854
4855 execve_end:
4856 for (gp = guest_argp, q = argp; *q;
4857 gp += sizeof(abi_ulong), q++) {
4858 if (get_user_ual(addr, gp)
4859 || !addr)
4860 break;
4861 unlock_user(*q, addr, 0);
4862 }
4863 for (gp = guest_envp, q = envp; *q;
4864 gp += sizeof(abi_ulong), q++) {
4865 if (get_user_ual(addr, gp)
4866 || !addr)
4867 break;
4868 unlock_user(*q, addr, 0);
4869 }
4870 }
4871 break;
4872 case TARGET_NR_chdir:
4873 if (!(p = lock_user_string(arg1)))
4874 goto efault;
4875 ret = get_errno(chdir(p));
4876 unlock_user(p, arg1, 0);
4877 break;
4878 #ifdef TARGET_NR_time
4879 case TARGET_NR_time:
4880 {
4881 time_t host_time;
4882 ret = get_errno(time(&host_time));
4883 if (!is_error(ret)
4884 && arg1
4885 && put_user_sal(host_time, arg1))
4886 goto efault;
4887 }
4888 break;
4889 #endif
4890 case TARGET_NR_mknod:
4891 if (!(p = lock_user_string(arg1)))
4892 goto efault;
4893 ret = get_errno(mknod(p, arg2, arg3));
4894 unlock_user(p, arg1, 0);
4895 break;
4896 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4897 case TARGET_NR_mknodat:
4898 if (!(p = lock_user_string(arg2)))
4899 goto efault;
4900 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4901 unlock_user(p, arg2, 0);
4902 break;
4903 #endif
4904 case TARGET_NR_chmod:
4905 if (!(p = lock_user_string(arg1)))
4906 goto efault;
4907 ret = get_errno(chmod(p, arg2));
4908 unlock_user(p, arg1, 0);
4909 break;
4910 #ifdef TARGET_NR_break
4911 case TARGET_NR_break:
4912 goto unimplemented;
4913 #endif
4914 #ifdef TARGET_NR_oldstat
4915 case TARGET_NR_oldstat:
4916 goto unimplemented;
4917 #endif
4918 case TARGET_NR_lseek:
4919 ret = get_errno(lseek(arg1, arg2, arg3));
4920 break;
4921 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
4922 /* Alpha specific */
4923 case TARGET_NR_getxpid:
4924 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
4925 ret = get_errno(getpid());
4926 break;
4927 #endif
4928 #ifdef TARGET_NR_getpid
4929 case TARGET_NR_getpid:
4930 ret = get_errno(getpid());
4931 break;
4932 #endif
4933 case TARGET_NR_mount:
4934 {
4935 /* need to look at the data field */
4936 void *p2, *p3;
4937 p = lock_user_string(arg1);
4938 p2 = lock_user_string(arg2);
4939 p3 = lock_user_string(arg3);
4940 if (!p || !p2 || !p3)
4941 ret = -TARGET_EFAULT;
4942 else {
4943 /* FIXME - arg5 should be locked, but it isn't clear how to
4944 * do that since it's not guaranteed to be a NULL-terminated
4945 * string.
4946 */
4947 if ( ! arg5 )
4948 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
4949 else
4950 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4951 }
4952 unlock_user(p, arg1, 0);
4953 unlock_user(p2, arg2, 0);
4954 unlock_user(p3, arg3, 0);
4955 break;
4956 }
4957 #ifdef TARGET_NR_umount
4958 case TARGET_NR_umount:
4959 if (!(p = lock_user_string(arg1)))
4960 goto efault;
4961 ret = get_errno(umount(p));
4962 unlock_user(p, arg1, 0);
4963 break;
4964 #endif
4965 #ifdef TARGET_NR_stime /* not on alpha */
4966 case TARGET_NR_stime:
4967 {
4968 time_t host_time;
4969 if (get_user_sal(host_time, arg1))
4970 goto efault;
4971 ret = get_errno(stime(&host_time));
4972 }
4973 break;
4974 #endif
4975 case TARGET_NR_ptrace:
4976 goto unimplemented;
4977 #ifdef TARGET_NR_alarm /* not on alpha */
4978 case TARGET_NR_alarm:
4979 ret = alarm(arg1);
4980 break;
4981 #endif
4982 #ifdef TARGET_NR_oldfstat
4983 case TARGET_NR_oldfstat:
4984 goto unimplemented;
4985 #endif
4986 #ifdef TARGET_NR_pause /* not on alpha */
4987 case TARGET_NR_pause:
4988 ret = get_errno(pause());
4989 break;
4990 #endif
4991 #ifdef TARGET_NR_utime
4992 case TARGET_NR_utime:
4993 {
4994 struct utimbuf tbuf, *host_tbuf;
4995 struct target_utimbuf *target_tbuf;
4996 if (arg2) {
4997 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4998 goto efault;
4999 tbuf.actime = tswapal(target_tbuf->actime);
5000 tbuf.modtime = tswapal(target_tbuf->modtime);
5001 unlock_user_struct(target_tbuf, arg2, 0);
5002 host_tbuf = &tbuf;
5003 } else {
5004 host_tbuf = NULL;
5005 }
5006 if (!(p = lock_user_string(arg1)))
5007 goto efault;
5008 ret = get_errno(utime(p, host_tbuf));
5009 unlock_user(p, arg1, 0);
5010 }
5011 break;
5012 #endif
5013 case TARGET_NR_utimes:
5014 {
5015 struct timeval *tvp, tv[2];
5016 if (arg2) {
5017 if (copy_from_user_timeval(&tv[0], arg2)
5018 || copy_from_user_timeval(&tv[1],
5019 arg2 + sizeof(struct target_timeval)))
5020 goto efault;
5021 tvp = tv;
5022 } else {
5023 tvp = NULL;
5024 }
5025 if (!(p = lock_user_string(arg1)))
5026 goto efault;
5027 ret = get_errno(utimes(p, tvp));
5028 unlock_user(p, arg1, 0);
5029 }
5030 break;
5031 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
5032 case TARGET_NR_futimesat:
5033 {
5034 struct timeval *tvp, tv[2];
5035 if (arg3) {
5036 if (copy_from_user_timeval(&tv[0], arg3)
5037 || copy_from_user_timeval(&tv[1],
5038 arg3 + sizeof(struct target_timeval)))
5039 goto efault;
5040 tvp = tv;
5041 } else {
5042 tvp = NULL;
5043 }
5044 if (!(p = lock_user_string(arg2)))
5045 goto efault;
5046 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
5047 unlock_user(p, arg2, 0);
5048 }
5049 break;
5050 #endif
5051 #ifdef TARGET_NR_stty
5052 case TARGET_NR_stty:
5053 goto unimplemented;
5054 #endif
5055 #ifdef TARGET_NR_gtty
5056 case TARGET_NR_gtty:
5057 goto unimplemented;
5058 #endif
5059 case TARGET_NR_access:
5060 if (!(p = lock_user_string(arg1)))
5061 goto efault;
5062 ret = get_errno(access(path(p), arg2));
5063 unlock_user(p, arg1, 0);
5064 break;
5065 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
5066 case TARGET_NR_faccessat:
5067 if (!(p = lock_user_string(arg2)))
5068 goto efault;
5069 ret = get_errno(sys_faccessat(arg1, p, arg3));
5070 unlock_user(p, arg2, 0);
5071 break;
5072 #endif
5073 #ifdef TARGET_NR_nice /* not on alpha */
5074 case TARGET_NR_nice:
5075 ret = get_errno(nice(arg1));
5076 break;
5077 #endif
5078 #ifdef TARGET_NR_ftime
5079 case TARGET_NR_ftime:
5080 goto unimplemented;
5081 #endif
5082 case TARGET_NR_sync:
5083 sync();
5084 ret = 0;
5085 break;
5086 case TARGET_NR_kill:
5087 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
5088 break;
5089 case TARGET_NR_rename:
5090 {
5091 void *p2;
5092 p = lock_user_string(arg1);
5093 p2 = lock_user_string(arg2);
5094 if (!p || !p2)
5095 ret = -TARGET_EFAULT;
5096 else
5097 ret = get_errno(rename(p, p2));
5098 unlock_user(p2, arg2, 0);
5099 unlock_user(p, arg1, 0);
5100 }
5101 break;
5102 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
5103 case TARGET_NR_renameat:
5104 {
5105 void *p2;
5106 p = lock_user_string(arg2);
5107 p2 = lock_user_string(arg4);
5108 if (!p || !p2)
5109 ret = -TARGET_EFAULT;
5110 else
5111 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
5112 unlock_user(p2, arg4, 0);
5113 unlock_user(p, arg2, 0);
5114 }
5115 break;
5116 #endif
5117 case TARGET_NR_mkdir:
5118 if (!(p = lock_user_string(arg1)))
5119 goto efault;
5120 ret = get_errno(mkdir(p, arg2));
5121 unlock_user(p, arg1, 0);
5122 break;
5123 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
5124 case TARGET_NR_mkdirat:
5125 if (!(p = lock_user_string(arg2)))
5126 goto efault;
5127 ret = get_errno(sys_mkdirat(arg1, p, arg3));
5128 unlock_user(p, arg2, 0);
5129 break;
5130 #endif
5131 case TARGET_NR_rmdir:
5132 if (!(p = lock_user_string(arg1)))
5133 goto efault;
5134 ret = get_errno(rmdir(p));
5135 unlock_user(p, arg1, 0);
5136 break;
5137 case TARGET_NR_dup:
5138 ret = get_errno(dup(arg1));
5139 break;
5140 case TARGET_NR_pipe:
5141 ret = do_pipe(cpu_env, arg1, 0, 0);
5142 break;
5143 #ifdef TARGET_NR_pipe2
5144 case TARGET_NR_pipe2:
5145 ret = do_pipe(cpu_env, arg1, arg2, 1);
5146 break;
5147 #endif
5148 case TARGET_NR_times:
5149 {
5150 struct target_tms *tmsp;
5151 struct tms tms;
5152 ret = get_errno(times(&tms));
5153 if (arg1) {
5154 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
5155 if (!tmsp)
5156 goto efault;
5157 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
5158 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
5159 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
5160 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
5161 }
5162 if (!is_error(ret))
5163 ret = host_to_target_clock_t(ret);
5164 }
5165 break;
5166 #ifdef TARGET_NR_prof
5167 case TARGET_NR_prof:
5168 goto unimplemented;
5169 #endif
5170 #ifdef TARGET_NR_signal
5171 case TARGET_NR_signal:
5172 goto unimplemented;
5173 #endif
5174 case TARGET_NR_acct:
5175 if (arg1 == 0) {
5176 ret = get_errno(acct(NULL));
5177 } else {
5178 if (!(p = lock_user_string(arg1)))
5179 goto efault;
5180 ret = get_errno(acct(path(p)));
5181 unlock_user(p, arg1, 0);
5182 }
5183 break;
5184 #ifdef TARGET_NR_umount2 /* not on alpha */
5185 case TARGET_NR_umount2:
5186 if (!(p = lock_user_string(arg1)))
5187 goto efault;
5188 ret = get_errno(umount2(p, arg2));
5189 unlock_user(p, arg1, 0);
5190 break;
5191 #endif
5192 #ifdef TARGET_NR_lock
5193 case TARGET_NR_lock:
5194 goto unimplemented;
5195 #endif
5196 case TARGET_NR_ioctl:
5197 ret = do_ioctl(arg1, arg2, arg3);
5198 break;
5199 case TARGET_NR_fcntl:
5200 ret = do_fcntl(arg1, arg2, arg3);
5201 break;
5202 #ifdef TARGET_NR_mpx
5203 case TARGET_NR_mpx:
5204 goto unimplemented;
5205 #endif
5206 case TARGET_NR_setpgid:
5207 ret = get_errno(setpgid(arg1, arg2));
5208 break;
5209 #ifdef TARGET_NR_ulimit
5210 case TARGET_NR_ulimit:
5211 goto unimplemented;
5212 #endif
5213 #ifdef TARGET_NR_oldolduname
5214 case TARGET_NR_oldolduname:
5215 goto unimplemented;
5216 #endif
5217 case TARGET_NR_umask:
5218 ret = get_errno(umask(arg1));
5219 break;
5220 case TARGET_NR_chroot:
5221 if (!(p = lock_user_string(arg1)))
5222 goto efault;
5223 ret = get_errno(chroot(p));
5224 unlock_user(p, arg1, 0);
5225 break;
5226 case TARGET_NR_ustat:
5227 goto unimplemented;
5228 case TARGET_NR_dup2:
5229 ret = get_errno(dup2(arg1, arg2));
5230 break;
5231 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
5232 case TARGET_NR_dup3:
5233 ret = get_errno(dup3(arg1, arg2, arg3));
5234 break;
5235 #endif
5236 #ifdef TARGET_NR_getppid /* not on alpha */
5237 case TARGET_NR_getppid:
5238 ret = get_errno(getppid());
5239 break;
5240 #endif
5241 case TARGET_NR_getpgrp:
5242 ret = get_errno(getpgrp());
5243 break;
5244 case TARGET_NR_setsid:
5245 ret = get_errno(setsid());
5246 break;
5247 #ifdef TARGET_NR_sigaction
5248 case TARGET_NR_sigaction:
5249 {
5250 #if defined(TARGET_ALPHA)
5251 struct target_sigaction act, oact, *pact = 0;
5252 struct target_old_sigaction *old_act;
5253 if (arg2) {
5254 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5255 goto efault;
5256 act._sa_handler = old_act->_sa_handler;
5257 target_siginitset(&act.sa_mask, old_act->sa_mask);
5258 act.sa_flags = old_act->sa_flags;
5259 act.sa_restorer = 0;
5260 unlock_user_struct(old_act, arg2, 0);
5261 pact = &act;
5262 }
5263 ret = get_errno(do_sigaction(arg1, pact, &oact));
5264 if (!is_error(ret) && arg3) {
5265 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5266 goto efault;
5267 old_act->_sa_handler = oact._sa_handler;
5268 old_act->sa_mask = oact.sa_mask.sig[0];
5269 old_act->sa_flags = oact.sa_flags;
5270 unlock_user_struct(old_act, arg3, 1);
5271 }
5272 #elif defined(TARGET_MIPS)
5273 struct target_sigaction act, oact, *pact, *old_act;
5274
5275 if (arg2) {
5276 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5277 goto efault;
5278 act._sa_handler = old_act->_sa_handler;
5279 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5280 act.sa_flags = old_act->sa_flags;
5281 unlock_user_struct(old_act, arg2, 0);
5282 pact = &act;
5283 } else {
5284 pact = NULL;
5285 }
5286
5287 ret = get_errno(do_sigaction(arg1, pact, &oact));
5288
5289 if (!is_error(ret) && arg3) {
5290 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5291 goto efault;
5292 old_act->_sa_handler = oact._sa_handler;
5293 old_act->sa_flags = oact.sa_flags;
5294 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5295 old_act->sa_mask.sig[1] = 0;
5296 old_act->sa_mask.sig[2] = 0;
5297 old_act->sa_mask.sig[3] = 0;
5298 unlock_user_struct(old_act, arg3, 1);
5299 }
5300 #else
5301 struct target_old_sigaction *old_act;
5302 struct target_sigaction act, oact, *pact;
5303 if (arg2) {
5304 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5305 goto efault;
5306 act._sa_handler = old_act->_sa_handler;
5307 target_siginitset(&act.sa_mask, old_act->sa_mask);
5308 act.sa_flags = old_act->sa_flags;
5309 act.sa_restorer = old_act->sa_restorer;
5310 unlock_user_struct(old_act, arg2, 0);
5311 pact = &act;
5312 } else {
5313 pact = NULL;
5314 }
5315 ret = get_errno(do_sigaction(arg1, pact, &oact));
5316 if (!is_error(ret) && arg3) {
5317 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5318 goto efault;
5319 old_act->_sa_handler = oact._sa_handler;
5320 old_act->sa_mask = oact.sa_mask.sig[0];
5321 old_act->sa_flags = oact.sa_flags;
5322 old_act->sa_restorer = oact.sa_restorer;
5323 unlock_user_struct(old_act, arg3, 1);
5324 }
5325 #endif
5326 }
5327 break;
5328 #endif
5329 case TARGET_NR_rt_sigaction:
5330 {
5331 #if defined(TARGET_ALPHA)
5332 struct target_sigaction act, oact, *pact = 0;
5333 struct target_rt_sigaction *rt_act;
5334 /* ??? arg4 == sizeof(sigset_t). */
5335 if (arg2) {
5336 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5337 goto efault;
5338 act._sa_handler = rt_act->_sa_handler;
5339 act.sa_mask = rt_act->sa_mask;
5340 act.sa_flags = rt_act->sa_flags;
5341 act.sa_restorer = arg5;
5342 unlock_user_struct(rt_act, arg2, 0);
5343 pact = &act;
5344 }
5345 ret = get_errno(do_sigaction(arg1, pact, &oact));
5346 if (!is_error(ret) && arg3) {
5347 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5348 goto efault;
5349 rt_act->_sa_handler = oact._sa_handler;
5350 rt_act->sa_mask = oact.sa_mask;
5351 rt_act->sa_flags = oact.sa_flags;
5352 unlock_user_struct(rt_act, arg3, 1);
5353 }
5354 #else
5355 struct target_sigaction *act;
5356 struct target_sigaction *oact;
5357
5358 if (arg2) {
5359 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5360 goto efault;
5361 } else
5362 act = NULL;
5363 if (arg3) {
5364 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5365 ret = -TARGET_EFAULT;
5366 goto rt_sigaction_fail;
5367 }
5368 } else
5369 oact = NULL;
5370 ret = get_errno(do_sigaction(arg1, act, oact));
5371 rt_sigaction_fail:
5372 if (act)
5373 unlock_user_struct(act, arg2, 0);
5374 if (oact)
5375 unlock_user_struct(oact, arg3, 1);
5376 #endif
5377 }
5378 break;
5379 #ifdef TARGET_NR_sgetmask /* not on alpha */
5380 case TARGET_NR_sgetmask:
5381 {
5382 sigset_t cur_set;
5383 abi_ulong target_set;
5384 sigprocmask(0, NULL, &cur_set);
5385 host_to_target_old_sigset(&target_set, &cur_set);
5386 ret = target_set;
5387 }
5388 break;
5389 #endif
5390 #ifdef TARGET_NR_ssetmask /* not on alpha */
5391 case TARGET_NR_ssetmask:
5392 {
5393 sigset_t set, oset, cur_set;
5394 abi_ulong target_set = arg1;
5395 sigprocmask(0, NULL, &cur_set);
5396 target_to_host_old_sigset(&set, &target_set);
5397 sigorset(&set, &set, &cur_set);
5398 sigprocmask(SIG_SETMASK, &set, &oset);
5399 host_to_target_old_sigset(&target_set, &oset);
5400 ret = target_set;
5401 }
5402 break;
5403 #endif
5404 #ifdef TARGET_NR_sigprocmask
5405 case TARGET_NR_sigprocmask:
5406 {
5407 #if defined(TARGET_ALPHA)
5408 sigset_t set, oldset;
5409 abi_ulong mask;
5410 int how;
5411
5412 switch (arg1) {
5413 case TARGET_SIG_BLOCK:
5414 how = SIG_BLOCK;
5415 break;
5416 case TARGET_SIG_UNBLOCK:
5417 how = SIG_UNBLOCK;
5418 break;
5419 case TARGET_SIG_SETMASK:
5420 how = SIG_SETMASK;
5421 break;
5422 default:
5423 ret = -TARGET_EINVAL;
5424 goto fail;
5425 }
5426 mask = arg2;
5427 target_to_host_old_sigset(&set, &mask);
5428
5429 ret = get_errno(sigprocmask(how, &set, &oldset));
5430
5431 if (!is_error(ret)) {
5432 host_to_target_old_sigset(&mask, &oldset);
5433 ret = mask;
5434 ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */
5435 }
5436 #else
5437 sigset_t set, oldset, *set_ptr;
5438 int how;
5439
5440 if (arg2) {
5441 switch (arg1) {
5442 case TARGET_SIG_BLOCK:
5443 how = SIG_BLOCK;
5444 break;
5445 case TARGET_SIG_UNBLOCK:
5446 how = SIG_UNBLOCK;
5447 break;
5448 case TARGET_SIG_SETMASK:
5449 how = SIG_SETMASK;
5450 break;
5451 default:
5452 ret = -TARGET_EINVAL;
5453 goto fail;
5454 }
5455 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5456 goto efault;
5457 target_to_host_old_sigset(&set, p);
5458 unlock_user(p, arg2, 0);
5459 set_ptr = &set;
5460 } else {
5461 how = 0;
5462 set_ptr = NULL;
5463 }
5464 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5465 if (!is_error(ret) && arg3) {
5466 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5467 goto efault;
5468 host_to_target_old_sigset(p, &oldset);
5469 unlock_user(p, arg3, sizeof(target_sigset_t));
5470 }
5471 #endif
5472 }
5473 break;
5474 #endif
5475 case TARGET_NR_rt_sigprocmask:
5476 {
5477 int how = arg1;
5478 sigset_t set, oldset, *set_ptr;
5479
5480 if (arg2) {
5481 switch(how) {
5482 case TARGET_SIG_BLOCK:
5483 how = SIG_BLOCK;
5484 break;
5485 case TARGET_SIG_UNBLOCK:
5486 how = SIG_UNBLOCK;
5487 break;
5488 case TARGET_SIG_SETMASK:
5489 how = SIG_SETMASK;
5490 break;
5491 default:
5492 ret = -TARGET_EINVAL;
5493 goto fail;
5494 }
5495 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5496 goto efault;
5497 target_to_host_sigset(&set, p);
5498 unlock_user(p, arg2, 0);
5499 set_ptr = &set;
5500 } else {
5501 how = 0;
5502 set_ptr = NULL;
5503 }
5504 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5505 if (!is_error(ret) && arg3) {
5506 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5507 goto efault;
5508 host_to_target_sigset(p, &oldset);
5509 unlock_user(p, arg3, sizeof(target_sigset_t));
5510 }
5511 }
5512 break;
5513 #ifdef TARGET_NR_sigpending
5514 case TARGET_NR_sigpending:
5515 {
5516 sigset_t set;
5517 ret = get_errno(sigpending(&set));
5518 if (!is_error(ret)) {
5519 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5520 goto efault;
5521 host_to_target_old_sigset(p, &set);
5522 unlock_user(p, arg1, sizeof(target_sigset_t));
5523 }
5524 }
5525 break;
5526 #endif
5527 case TARGET_NR_rt_sigpending:
5528 {
5529 sigset_t set;
5530 ret = get_errno(sigpending(&set));
5531 if (!is_error(ret)) {
5532 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5533 goto efault;
5534 host_to_target_sigset(p, &set);
5535 unlock_user(p, arg1, sizeof(target_sigset_t));
5536 }
5537 }
5538 break;
5539 #ifdef TARGET_NR_sigsuspend
5540 case TARGET_NR_sigsuspend:
5541 {
5542 sigset_t set;
5543 #if defined(TARGET_ALPHA)
5544 abi_ulong mask = arg1;
5545 target_to_host_old_sigset(&set, &mask);
5546 #else
5547 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5548 goto efault;
5549 target_to_host_old_sigset(&set, p);
5550 unlock_user(p, arg1, 0);
5551 #endif
5552 ret = get_errno(sigsuspend(&set));
5553 }
5554 break;
5555 #endif
5556 case TARGET_NR_rt_sigsuspend:
5557 {
5558 sigset_t set;
5559 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5560 goto efault;
5561 target_to_host_sigset(&set, p);
5562 unlock_user(p, arg1, 0);
5563 ret = get_errno(sigsuspend(&set));
5564 }
5565 break;
5566 case TARGET_NR_rt_sigtimedwait:
5567 {
5568 sigset_t set;
5569 struct timespec uts, *puts;
5570 siginfo_t uinfo;
5571
5572 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5573 goto efault;
5574 target_to_host_sigset(&set, p);
5575 unlock_user(p, arg1, 0);
5576 if (arg3) {
5577 puts = &uts;
5578 target_to_host_timespec(puts, arg3);
5579 } else {
5580 puts = NULL;
5581 }
5582 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5583 if (!is_error(ret) && arg2) {
5584 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5585 goto efault;
5586 host_to_target_siginfo(p, &uinfo);
5587 unlock_user(p, arg2, sizeof(target_siginfo_t));
5588 }
5589 }
5590 break;
5591 case TARGET_NR_rt_sigqueueinfo:
5592 {
5593 siginfo_t uinfo;
5594 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5595 goto efault;
5596 target_to_host_siginfo(&uinfo, p);
5597 unlock_user(p, arg1, 0);
5598 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5599 }
5600 break;
5601 #ifdef TARGET_NR_sigreturn
5602 case TARGET_NR_sigreturn:
5603 /* NOTE: ret is eax, so not transcoding must be done */
5604 ret = do_sigreturn(cpu_env);
5605 break;
5606 #endif
5607 case TARGET_NR_rt_sigreturn:
5608 /* NOTE: ret is eax, so not transcoding must be done */
5609 ret = do_rt_sigreturn(cpu_env);
5610 break;
5611 case TARGET_NR_sethostname:
5612 if (!(p = lock_user_string(arg1)))
5613 goto efault;
5614 ret = get_errno(sethostname(p, arg2));
5615 unlock_user(p, arg1, 0);
5616 break;
5617 case TARGET_NR_setrlimit:
5618 {
5619 int resource = target_to_host_resource(arg1);
5620 struct target_rlimit *target_rlim;
5621 struct rlimit rlim;
5622 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5623 goto efault;
5624 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
5625 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
5626 unlock_user_struct(target_rlim, arg2, 0);
5627 ret = get_errno(setrlimit(resource, &rlim));
5628 }
5629 break;
5630 case TARGET_NR_getrlimit:
5631 {
5632 int resource = target_to_host_resource(arg1);
5633 struct target_rlimit *target_rlim;
5634 struct rlimit rlim;
5635
5636 ret = get_errno(getrlimit(resource, &rlim));
5637 if (!is_error(ret)) {
5638 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5639 goto efault;
5640 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
5641 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
5642 unlock_user_struct(target_rlim, arg2, 1);
5643 }
5644 }
5645 break;
5646 case TARGET_NR_getrusage:
5647 {
5648 struct rusage rusage;
5649 ret = get_errno(getrusage(arg1, &rusage));
5650 if (!is_error(ret)) {
5651 host_to_target_rusage(arg2, &rusage);
5652 }
5653 }
5654 break;
5655 case TARGET_NR_gettimeofday:
5656 {
5657 struct timeval tv;
5658 ret = get_errno(gettimeofday(&tv, NULL));
5659 if (!is_error(ret)) {
5660 if (copy_to_user_timeval(arg1, &tv))
5661 goto efault;
5662 }
5663 }
5664 break;
5665 case TARGET_NR_settimeofday:
5666 {
5667 struct timeval tv;
5668 if (copy_from_user_timeval(&tv, arg1))
5669 goto efault;
5670 ret = get_errno(settimeofday(&tv, NULL));
5671 }
5672 break;
5673 #if defined(TARGET_NR_select) && !defined(TARGET_S390X) && !defined(TARGET_S390)
5674 case TARGET_NR_select:
5675 {
5676 struct target_sel_arg_struct *sel;
5677 abi_ulong inp, outp, exp, tvp;
5678 long nsel;
5679
5680 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5681 goto efault;
5682 nsel = tswapal(sel->n);
5683 inp = tswapal(sel->inp);
5684 outp = tswapal(sel->outp);
5685 exp = tswapal(sel->exp);
5686 tvp = tswapal(sel->tvp);
5687 unlock_user_struct(sel, arg1, 0);
5688 ret = do_select(nsel, inp, outp, exp, tvp);
5689 }
5690 break;
5691 #endif
5692 #ifdef TARGET_NR_pselect6
5693 case TARGET_NR_pselect6:
5694 {
5695 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
5696 fd_set rfds, wfds, efds;
5697 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
5698 struct timespec ts, *ts_ptr;
5699
5700 /*
5701 * The 6th arg is actually two args smashed together,
5702 * so we cannot use the C library.
5703 */
5704 sigset_t set;
5705 struct {
5706 sigset_t *set;
5707 size_t size;
5708 } sig, *sig_ptr;
5709
5710 abi_ulong arg_sigset, arg_sigsize, *arg7;
5711 target_sigset_t *target_sigset;
5712
5713 n = arg1;
5714 rfd_addr = arg2;
5715 wfd_addr = arg3;
5716 efd_addr = arg4;
5717 ts_addr = arg5;
5718
5719 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
5720 if (ret) {
5721 goto fail;
5722 }
5723 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
5724 if (ret) {
5725 goto fail;
5726 }
5727 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
5728 if (ret) {
5729 goto fail;
5730 }
5731
5732 /*
5733 * This takes a timespec, and not a timeval, so we cannot
5734 * use the do_select() helper ...
5735 */
5736 if (ts_addr) {
5737 if (target_to_host_timespec(&ts, ts_addr)) {
5738 goto efault;
5739 }
5740 ts_ptr = &ts;
5741 } else {
5742 ts_ptr = NULL;
5743 }
5744
5745 /* Extract the two packed args for the sigset */
5746 if (arg6) {
5747 sig_ptr = &sig;
5748 sig.size = _NSIG / 8;
5749
5750 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
5751 if (!arg7) {
5752 goto efault;
5753 }
5754 arg_sigset = tswapal(arg7[0]);
5755 arg_sigsize = tswapal(arg7[1]);
5756 unlock_user(arg7, arg6, 0);
5757
5758 if (arg_sigset) {
5759 sig.set = &set;
5760 if (arg_sigsize != sizeof(*target_sigset)) {
5761 /* Like the kernel, we enforce correct size sigsets */
5762 ret = -TARGET_EINVAL;
5763 goto fail;
5764 }
5765 target_sigset = lock_user(VERIFY_READ, arg_sigset,
5766 sizeof(*target_sigset), 1);
5767 if (!target_sigset) {
5768 goto efault;
5769 }
5770 target_to_host_sigset(&set, target_sigset);
5771 unlock_user(target_sigset, arg_sigset, 0);
5772 } else {
5773 sig.set = NULL;
5774 }
5775 } else {
5776 sig_ptr = NULL;
5777 }
5778
5779 ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
5780 ts_ptr, sig_ptr));
5781
5782 if (!is_error(ret)) {
5783 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
5784 goto efault;
5785 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
5786 goto efault;
5787 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
5788 goto efault;
5789
5790 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
5791 goto efault;
5792 }
5793 }
5794 break;
5795 #endif
5796 case TARGET_NR_symlink:
5797 {
5798 void *p2;
5799 p = lock_user_string(arg1);
5800 p2 = lock_user_string(arg2);
5801 if (!p || !p2)
5802 ret = -TARGET_EFAULT;
5803 else
5804 ret = get_errno(symlink(p, p2));
5805 unlock_user(p2, arg2, 0);
5806 unlock_user(p, arg1, 0);
5807 }
5808 break;
5809 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5810 case TARGET_NR_symlinkat:
5811 {
5812 void *p2;
5813 p = lock_user_string(arg1);
5814 p2 = lock_user_string(arg3);
5815 if (!p || !p2)
5816 ret = -TARGET_EFAULT;
5817 else
5818 ret = get_errno(sys_symlinkat(p, arg2, p2));
5819 unlock_user(p2, arg3, 0);
5820 unlock_user(p, arg1, 0);
5821 }
5822 break;
5823 #endif
5824 #ifdef TARGET_NR_oldlstat
5825 case TARGET_NR_oldlstat:
5826 goto unimplemented;
5827 #endif
5828 case TARGET_NR_readlink:
5829 {
5830 void *p2, *temp;
5831 p = lock_user_string(arg1);
5832 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5833 if (!p || !p2)
5834 ret = -TARGET_EFAULT;
5835 else {
5836 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5837 char real[PATH_MAX];
5838 temp = realpath(exec_path,real);
5839 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5840 snprintf((char *)p2, arg3, "%s", real);
5841 }
5842 else
5843 ret = get_errno(readlink(path(p), p2, arg3));
5844 }
5845 unlock_user(p2, arg2, ret);
5846 unlock_user(p, arg1, 0);
5847 }
5848 break;
5849 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5850 case TARGET_NR_readlinkat:
5851 {
5852 void *p2;
5853 p = lock_user_string(arg2);
5854 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5855 if (!p || !p2)
5856 ret = -TARGET_EFAULT;
5857 else
5858 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5859 unlock_user(p2, arg3, ret);
5860 unlock_user(p, arg2, 0);
5861 }
5862 break;
5863 #endif
5864 #ifdef TARGET_NR_uselib
5865 case TARGET_NR_uselib:
5866 goto unimplemented;
5867 #endif
5868 #ifdef TARGET_NR_swapon
5869 case TARGET_NR_swapon:
5870 if (!(p = lock_user_string(arg1)))
5871 goto efault;
5872 ret = get_errno(swapon(p, arg2));
5873 unlock_user(p, arg1, 0);
5874 break;
5875 #endif
5876 case TARGET_NR_reboot:
5877 if (!(p = lock_user_string(arg4)))
5878 goto efault;
5879 ret = reboot(arg1, arg2, arg3, p);
5880 unlock_user(p, arg4, 0);
5881 break;
5882 #ifdef TARGET_NR_readdir
5883 case TARGET_NR_readdir:
5884 goto unimplemented;
5885 #endif
5886 #ifdef TARGET_NR_mmap
5887 case TARGET_NR_mmap:
5888 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || \
5889 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
5890 || defined(TARGET_S390X)
5891 {
5892 abi_ulong *v;
5893 abi_ulong v1, v2, v3, v4, v5, v6;
5894 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5895 goto efault;
5896 v1 = tswapal(v[0]);
5897 v2 = tswapal(v[1]);
5898 v3 = tswapal(v[2]);
5899 v4 = tswapal(v[3]);
5900 v5 = tswapal(v[4]);
5901 v6 = tswapal(v[5]);
5902 unlock_user(v, arg1, 0);
5903 ret = get_errno(target_mmap(v1, v2, v3,
5904 target_to_host_bitmask(v4, mmap_flags_tbl),
5905 v5, v6));
5906 }
5907 #else
5908 ret = get_errno(target_mmap(arg1, arg2, arg3,
5909 target_to_host_bitmask(arg4, mmap_flags_tbl),
5910 arg5,
5911 arg6));
5912 #endif
5913 break;
5914 #endif
5915 #ifdef TARGET_NR_mmap2
5916 case TARGET_NR_mmap2:
5917 #ifndef MMAP_SHIFT
5918 #define MMAP_SHIFT 12
5919 #endif
5920 ret = get_errno(target_mmap(arg1, arg2, arg3,
5921 target_to_host_bitmask(arg4, mmap_flags_tbl),
5922 arg5,
5923 arg6 << MMAP_SHIFT));
5924 break;
5925 #endif
5926 case TARGET_NR_munmap:
5927 ret = get_errno(target_munmap(arg1, arg2));
5928 break;
5929 case TARGET_NR_mprotect:
5930 {
5931 TaskState *ts = ((CPUState *)cpu_env)->opaque;
5932 /* Special hack to detect libc making the stack executable. */
5933 if ((arg3 & PROT_GROWSDOWN)
5934 && arg1 >= ts->info->stack_limit
5935 && arg1 <= ts->info->start_stack) {
5936 arg3 &= ~PROT_GROWSDOWN;
5937 arg2 = arg2 + arg1 - ts->info->stack_limit;
5938 arg1 = ts->info->stack_limit;
5939 }
5940 }
5941 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5942 break;
5943 #ifdef TARGET_NR_mremap
5944 case TARGET_NR_mremap:
5945 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5946 break;
5947 #endif
5948 /* ??? msync/mlock/munlock are broken for softmmu. */
5949 #ifdef TARGET_NR_msync
5950 case TARGET_NR_msync:
5951 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5952 break;
5953 #endif
5954 #ifdef TARGET_NR_mlock
5955 case TARGET_NR_mlock:
5956 ret = get_errno(mlock(g2h(arg1), arg2));
5957 break;
5958 #endif
5959 #ifdef TARGET_NR_munlock
5960 case TARGET_NR_munlock:
5961 ret = get_errno(munlock(g2h(arg1), arg2));
5962 break;
5963 #endif
5964 #ifdef TARGET_NR_mlockall
5965 case TARGET_NR_mlockall:
5966 ret = get_errno(mlockall(arg1));
5967 break;
5968 #endif
5969 #ifdef TARGET_NR_munlockall
5970 case TARGET_NR_munlockall:
5971 ret = get_errno(munlockall());
5972 break;
5973 #endif
5974 case TARGET_NR_truncate:
5975 if (!(p = lock_user_string(arg1)))
5976 goto efault;
5977 ret = get_errno(truncate(p, arg2));
5978 unlock_user(p, arg1, 0);
5979 break;
5980 case TARGET_NR_ftruncate:
5981 ret = get_errno(ftruncate(arg1, arg2));
5982 break;
5983 case TARGET_NR_fchmod:
5984 ret = get_errno(fchmod(arg1, arg2));
5985 break;
5986 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5987 case TARGET_NR_fchmodat:
5988 if (!(p = lock_user_string(arg2)))
5989 goto efault;
5990 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5991 unlock_user(p, arg2, 0);
5992 break;
5993 #endif
5994 case TARGET_NR_getpriority:
5995 /* libc does special remapping of the return value of
5996 * sys_getpriority() so it's just easiest to call
5997 * sys_getpriority() directly rather than through libc. */
5998 ret = get_errno(sys_getpriority(arg1, arg2));
5999 break;
6000 case TARGET_NR_setpriority:
6001 ret = get_errno(setpriority(arg1, arg2, arg3));
6002 break;
6003 #ifdef TARGET_NR_profil
6004 case TARGET_NR_profil:
6005 goto unimplemented;
6006 #endif
6007 case TARGET_NR_statfs:
6008 if (!(p = lock_user_string(arg1)))
6009 goto efault;
6010 ret = get_errno(statfs(path(p), &stfs));
6011 unlock_user(p, arg1, 0);
6012 convert_statfs:
6013 if (!is_error(ret)) {
6014 struct target_statfs *target_stfs;
6015
6016 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
6017 goto efault;
6018 __put_user(stfs.f_type, &target_stfs->f_type);
6019 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6020 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6021 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6022 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6023 __put_user(stfs.f_files, &target_stfs->f_files);
6024 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6025 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6026 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6027 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
6028 unlock_user_struct(target_stfs, arg2, 1);
6029 }
6030 break;
6031 case TARGET_NR_fstatfs:
6032 ret = get_errno(fstatfs(arg1, &stfs));
6033 goto convert_statfs;
6034 #ifdef TARGET_NR_statfs64
6035 case TARGET_NR_statfs64:
6036 if (!(p = lock_user_string(arg1)))
6037 goto efault;
6038 ret = get_errno(statfs(path(p), &stfs));
6039 unlock_user(p, arg1, 0);
6040 convert_statfs64:
6041 if (!is_error(ret)) {
6042 struct target_statfs64 *target_stfs;
6043
6044 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
6045 goto efault;
6046 __put_user(stfs.f_type, &target_stfs->f_type);
6047 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6048 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6049 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6050 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6051 __put_user(stfs.f_files, &target_stfs->f_files);
6052 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6053 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6054 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6055 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
6056 unlock_user_struct(target_stfs, arg3, 1);
6057 }
6058 break;
6059 case TARGET_NR_fstatfs64:
6060 ret = get_errno(fstatfs(arg1, &stfs));
6061 goto convert_statfs64;
6062 #endif
6063 #ifdef TARGET_NR_ioperm
6064 case TARGET_NR_ioperm:
6065 goto unimplemented;
6066 #endif
6067 #ifdef TARGET_NR_socketcall
6068 case TARGET_NR_socketcall:
6069 ret = do_socketcall(arg1, arg2);
6070 break;
6071 #endif
6072 #ifdef TARGET_NR_accept
6073 case TARGET_NR_accept:
6074 ret = do_accept(arg1, arg2, arg3);
6075 break;
6076 #endif
6077 #ifdef TARGET_NR_bind
6078 case TARGET_NR_bind:
6079 ret = do_bind(arg1, arg2, arg3);
6080 break;
6081 #endif
6082 #ifdef TARGET_NR_connect
6083 case TARGET_NR_connect:
6084 ret = do_connect(arg1, arg2, arg3);
6085 break;
6086 #endif
6087 #ifdef TARGET_NR_getpeername
6088 case TARGET_NR_getpeername:
6089 ret = do_getpeername(arg1, arg2, arg3);
6090 break;
6091 #endif
6092 #ifdef TARGET_NR_getsockname
6093 case TARGET_NR_getsockname:
6094 ret = do_getsockname(arg1, arg2, arg3);
6095 break;
6096 #endif
6097 #ifdef TARGET_NR_getsockopt
6098 case TARGET_NR_getsockopt:
6099 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
6100 break;
6101 #endif
6102 #ifdef TARGET_NR_listen
6103 case TARGET_NR_listen:
6104 ret = get_errno(listen(arg1, arg2));
6105 break;
6106 #endif
6107 #ifdef TARGET_NR_recv
6108 case TARGET_NR_recv:
6109 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
6110 break;
6111 #endif
6112 #ifdef TARGET_NR_recvfrom
6113 case TARGET_NR_recvfrom:
6114 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
6115 break;
6116 #endif
6117 #ifdef TARGET_NR_recvmsg
6118 case TARGET_NR_recvmsg:
6119 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
6120 break;
6121 #endif
6122 #ifdef TARGET_NR_send
6123 case TARGET_NR_send:
6124 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
6125 break;
6126 #endif
6127 #ifdef TARGET_NR_sendmsg
6128 case TARGET_NR_sendmsg:
6129 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
6130 break;
6131 #endif
6132 #ifdef TARGET_NR_sendto
6133 case TARGET_NR_sendto:
6134 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
6135 break;
6136 #endif
6137 #ifdef TARGET_NR_shutdown
6138 case TARGET_NR_shutdown:
6139 ret = get_errno(shutdown(arg1, arg2));
6140 break;
6141 #endif
6142 #ifdef TARGET_NR_socket
6143 case TARGET_NR_socket:
6144 ret = do_socket(arg1, arg2, arg3);
6145 break;
6146 #endif
6147 #ifdef TARGET_NR_socketpair
6148 case TARGET_NR_socketpair:
6149 ret = do_socketpair(arg1, arg2, arg3, arg4);
6150 break;
6151 #endif
6152 #ifdef TARGET_NR_setsockopt
6153 case TARGET_NR_setsockopt:
6154 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
6155 break;
6156 #endif
6157
6158 case TARGET_NR_syslog:
6159 if (!(p = lock_user_string(arg2)))
6160 goto efault;
6161 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
6162 unlock_user(p, arg2, 0);
6163 break;
6164
6165 case TARGET_NR_setitimer:
6166 {
6167 struct itimerval value, ovalue, *pvalue;
6168
6169 if (arg2) {
6170 pvalue = &value;
6171 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
6172 || copy_from_user_timeval(&pvalue->it_value,
6173 arg2 + sizeof(struct target_timeval)))
6174 goto efault;
6175 } else {
6176 pvalue = NULL;
6177 }
6178 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
6179 if (!is_error(ret) && arg3) {
6180 if (copy_to_user_timeval(arg3,
6181 &ovalue.it_interval)
6182 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
6183 &ovalue.it_value))
6184 goto efault;
6185 }
6186 }
6187 break;
6188 case TARGET_NR_getitimer:
6189 {
6190 struct itimerval value;
6191
6192 ret = get_errno(getitimer(arg1, &value));
6193 if (!is_error(ret) && arg2) {
6194 if (copy_to_user_timeval(arg2,
6195 &value.it_interval)
6196 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
6197 &value.it_value))
6198 goto efault;
6199 }
6200 }
6201 break;
6202 case TARGET_NR_stat:
6203 if (!(p = lock_user_string(arg1)))
6204 goto efault;
6205 ret = get_errno(stat(path(p), &st));
6206 unlock_user(p, arg1, 0);
6207 goto do_stat;
6208 case TARGET_NR_lstat:
6209 if (!(p = lock_user_string(arg1)))
6210 goto efault;
6211 ret = get_errno(lstat(path(p), &st));
6212 unlock_user(p, arg1, 0);
6213 goto do_stat;
6214 case TARGET_NR_fstat:
6215 {
6216 ret = get_errno(fstat(arg1, &st));
6217 do_stat:
6218 if (!is_error(ret)) {
6219 struct target_stat *target_st;
6220
6221 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
6222 goto efault;
6223 memset(target_st, 0, sizeof(*target_st));
6224 __put_user(st.st_dev, &target_st->st_dev);
6225 __put_user(st.st_ino, &target_st->st_ino);
6226 __put_user(st.st_mode, &target_st->st_mode);
6227 __put_user(st.st_uid, &target_st->st_uid);
6228 __put_user(st.st_gid, &target_st->st_gid);
6229 __put_user(st.st_nlink, &target_st->st_nlink);
6230 __put_user(st.st_rdev, &target_st->st_rdev);
6231 __put_user(st.st_size, &target_st->st_size);
6232 __put_user(st.st_blksize, &target_st->st_blksize);
6233 __put_user(st.st_blocks, &target_st->st_blocks);
6234 __put_user(st.st_atime, &target_st->target_st_atime);
6235 __put_user(st.st_mtime, &target_st->target_st_mtime);
6236 __put_user(st.st_ctime, &target_st->target_st_ctime);
6237 unlock_user_struct(target_st, arg2, 1);
6238 }
6239 }
6240 break;
6241 #ifdef TARGET_NR_olduname
6242 case TARGET_NR_olduname:
6243 goto unimplemented;
6244 #endif
6245 #ifdef TARGET_NR_iopl
6246 case TARGET_NR_iopl:
6247 goto unimplemented;
6248 #endif
6249 case TARGET_NR_vhangup:
6250 ret = get_errno(vhangup());
6251 break;
6252 #ifdef TARGET_NR_idle
6253 case TARGET_NR_idle:
6254 goto unimplemented;
6255 #endif
6256 #ifdef TARGET_NR_syscall
6257 case TARGET_NR_syscall:
6258 ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
6259 arg6, arg7, arg8, 0);
6260 break;
6261 #endif
6262 case TARGET_NR_wait4:
6263 {
6264 int status;
6265 abi_long status_ptr = arg2;
6266 struct rusage rusage, *rusage_ptr;
6267 abi_ulong target_rusage = arg4;
6268 if (target_rusage)
6269 rusage_ptr = &rusage;
6270 else
6271 rusage_ptr = NULL;
6272 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
6273 if (!is_error(ret)) {
6274 if (status_ptr) {
6275 status = host_to_target_waitstatus(status);
6276 if (put_user_s32(status, status_ptr))
6277 goto efault;
6278 }
6279 if (target_rusage)
6280 host_to_target_rusage(target_rusage, &rusage);
6281 }
6282 }
6283 break;
6284 #ifdef TARGET_NR_swapoff
6285 case TARGET_NR_swapoff:
6286 if (!(p = lock_user_string(arg1)))
6287 goto efault;
6288 ret = get_errno(swapoff(p));
6289 unlock_user(p, arg1, 0);
6290 break;
6291 #endif
6292 case TARGET_NR_sysinfo:
6293 {
6294 struct target_sysinfo *target_value;
6295 struct sysinfo value;
6296 ret = get_errno(sysinfo(&value));
6297 if (!is_error(ret) && arg1)
6298 {
6299 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
6300 goto efault;
6301 __put_user(value.uptime, &target_value->uptime);
6302 __put_user(value.loads[0], &target_value->loads[0]);
6303 __put_user(value.loads[1], &target_value->loads[1]);
6304 __put_user(value.loads[2], &target_value->loads[2]);
6305 __put_user(value.totalram, &target_value->totalram);
6306 __put_user(value.freeram, &target_value->freeram);
6307 __put_user(value.sharedram, &target_value->sharedram);
6308 __put_user(value.bufferram, &target_value->bufferram);
6309 __put_user(value.totalswap, &target_value->totalswap);
6310 __put_user(value.freeswap, &target_value->freeswap);
6311 __put_user(value.procs, &target_value->procs);
6312 __put_user(value.totalhigh, &target_value->totalhigh);
6313 __put_user(value.freehigh, &target_value->freehigh);
6314 __put_user(value.mem_unit, &target_value->mem_unit);
6315 unlock_user_struct(target_value, arg1, 1);
6316 }
6317 }
6318 break;
6319 #ifdef TARGET_NR_ipc
6320 case TARGET_NR_ipc:
6321 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
6322 break;
6323 #endif
6324 #ifdef TARGET_NR_semget
6325 case TARGET_NR_semget:
6326 ret = get_errno(semget(arg1, arg2, arg3));
6327 break;
6328 #endif
6329 #ifdef TARGET_NR_semop
6330 case TARGET_NR_semop:
6331 ret = get_errno(do_semop(arg1, arg2, arg3));
6332 break;
6333 #endif
6334 #ifdef TARGET_NR_semctl
6335 case TARGET_NR_semctl:
6336 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
6337 break;
6338 #endif
6339 #ifdef TARGET_NR_msgctl
6340 case TARGET_NR_msgctl:
6341 ret = do_msgctl(arg1, arg2, arg3);
6342 break;
6343 #endif
6344 #ifdef TARGET_NR_msgget
6345 case TARGET_NR_msgget:
6346 ret = get_errno(msgget(arg1, arg2));
6347 break;
6348 #endif
6349 #ifdef TARGET_NR_msgrcv
6350 case TARGET_NR_msgrcv:
6351 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
6352 break;
6353 #endif
6354 #ifdef TARGET_NR_msgsnd
6355 case TARGET_NR_msgsnd:
6356 ret = do_msgsnd(arg1, arg2, arg3, arg4);
6357 break;
6358 #endif
6359 #ifdef TARGET_NR_shmget
6360 case TARGET_NR_shmget:
6361 ret = get_errno(shmget(arg1, arg2, arg3));
6362 break;
6363 #endif
6364 #ifdef TARGET_NR_shmctl
6365 case TARGET_NR_shmctl:
6366 ret = do_shmctl(arg1, arg2, arg3);
6367 break;
6368 #endif
6369 #ifdef TARGET_NR_shmat
6370 case TARGET_NR_shmat:
6371 ret = do_shmat(arg1, arg2, arg3);
6372 break;
6373 #endif
6374 #ifdef TARGET_NR_shmdt
6375 case TARGET_NR_shmdt:
6376 ret = do_shmdt(arg1);
6377 break;
6378 #endif
6379 case TARGET_NR_fsync:
6380 ret = get_errno(fsync(arg1));
6381 break;
6382 case TARGET_NR_clone:
6383 #if defined(TARGET_SH4) || defined(TARGET_ALPHA)
6384 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6385 #elif defined(TARGET_CRIS)
6386 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
6387 #elif defined(TARGET_S390X)
6388 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
6389 #else
6390 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6391 #endif
6392 break;
6393 #ifdef __NR_exit_group
6394 /* new thread calls */
6395 case TARGET_NR_exit_group:
6396 #ifdef TARGET_GPROF
6397 _mcleanup();
6398 #endif
6399 gdb_exit(cpu_env, arg1);
6400 ret = get_errno(exit_group(arg1));
6401 break;
6402 #endif
6403 case TARGET_NR_setdomainname:
6404 if (!(p = lock_user_string(arg1)))
6405 goto efault;
6406 ret = get_errno(setdomainname(p, arg2));
6407 unlock_user(p, arg1, 0);
6408 break;
6409 case TARGET_NR_uname:
6410 /* no need to transcode because we use the linux syscall */
6411 {
6412 struct new_utsname * buf;
6413
6414 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6415 goto efault;
6416 ret = get_errno(sys_uname(buf));
6417 if (!is_error(ret)) {
6418 /* Overrite the native machine name with whatever is being
6419 emulated. */
6420 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6421 /* Allow the user to override the reported release. */
6422 if (qemu_uname_release && *qemu_uname_release)
6423 strcpy (buf->release, qemu_uname_release);
6424 }
6425 unlock_user_struct(buf, arg1, 1);
6426 }
6427 break;
6428 #ifdef TARGET_I386
6429 case TARGET_NR_modify_ldt:
6430 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6431 break;
6432 #if !defined(TARGET_X86_64)
6433 case TARGET_NR_vm86old:
6434 goto unimplemented;
6435 case TARGET_NR_vm86:
6436 ret = do_vm86(cpu_env, arg1, arg2);
6437 break;
6438 #endif
6439 #endif
6440 case TARGET_NR_adjtimex:
6441 goto unimplemented;
6442 #ifdef TARGET_NR_create_module
6443 case TARGET_NR_create_module:
6444 #endif
6445 case TARGET_NR_init_module:
6446 case TARGET_NR_delete_module:
6447 #ifdef TARGET_NR_get_kernel_syms
6448 case TARGET_NR_get_kernel_syms:
6449 #endif
6450 goto unimplemented;
6451 case TARGET_NR_quotactl:
6452 goto unimplemented;
6453 case TARGET_NR_getpgid:
6454 ret = get_errno(getpgid(arg1));
6455 break;
6456 case TARGET_NR_fchdir:
6457 ret = get_errno(fchdir(arg1));
6458 break;
6459 #ifdef TARGET_NR_bdflush /* not on x86_64 */
6460 case TARGET_NR_bdflush:
6461 goto unimplemented;
6462 #endif
6463 #ifdef TARGET_NR_sysfs
6464 case TARGET_NR_sysfs:
6465 goto unimplemented;
6466 #endif
6467 case TARGET_NR_personality:
6468 ret = get_errno(personality(arg1));
6469 break;
6470 #ifdef TARGET_NR_afs_syscall
6471 case TARGET_NR_afs_syscall:
6472 goto unimplemented;
6473 #endif
6474 #ifdef TARGET_NR__llseek /* Not on alpha */
6475 case TARGET_NR__llseek:
6476 {
6477 int64_t res;
6478 #if !defined(__NR_llseek)
6479 res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);
6480 if (res == -1) {
6481 ret = get_errno(res);
6482 } else {
6483 ret = 0;
6484 }
6485 #else
6486 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
6487 #endif
6488 if ((ret == 0) && put_user_s64(res, arg4)) {
6489 goto efault;
6490 }
6491 }
6492 break;
6493 #endif
6494 case TARGET_NR_getdents:
6495 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
6496 {
6497 struct target_dirent *target_dirp;
6498 struct linux_dirent *dirp;
6499 abi_long count = arg3;
6500
6501 dirp = malloc(count);
6502 if (!dirp) {
6503 ret = -TARGET_ENOMEM;
6504 goto fail;
6505 }
6506
6507 ret = get_errno(sys_getdents(arg1, dirp, count));
6508 if (!is_error(ret)) {
6509 struct linux_dirent *de;
6510 struct target_dirent *tde;
6511 int len = ret;
6512 int reclen, treclen;
6513 int count1, tnamelen;
6514
6515 count1 = 0;
6516 de = dirp;
6517 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6518 goto efault;
6519 tde = target_dirp;
6520 while (len > 0) {
6521 reclen = de->d_reclen;
6522 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
6523 tde->d_reclen = tswap16(treclen);
6524 tde->d_ino = tswapal(de->d_ino);
6525 tde->d_off = tswapal(de->d_off);
6526 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
6527 if (tnamelen > 256)
6528 tnamelen = 256;
6529 /* XXX: may not be correct */
6530 pstrcpy(tde->d_name, tnamelen, de->d_name);
6531 de = (struct linux_dirent *)((char *)de + reclen);
6532 len -= reclen;
6533 tde = (struct target_dirent *)((char *)tde + treclen);
6534 count1 += treclen;
6535 }
6536 ret = count1;
6537 unlock_user(target_dirp, arg2, ret);
6538 }
6539 free(dirp);
6540 }
6541 #else
6542 {
6543 struct linux_dirent *dirp;
6544 abi_long count = arg3;
6545
6546 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6547 goto efault;
6548 ret = get_errno(sys_getdents(arg1, dirp, count));
6549 if (!is_error(ret)) {
6550 struct linux_dirent *de;
6551 int len = ret;
6552 int reclen;
6553 de = dirp;
6554 while (len > 0) {
6555 reclen = de->d_reclen;
6556 if (reclen > len)
6557 break;
6558 de->d_reclen = tswap16(reclen);
6559 tswapls(&de->d_ino);
6560 tswapls(&de->d_off);
6561 de = (struct linux_dirent *)((char *)de + reclen);
6562 len -= reclen;
6563 }
6564 }
6565 unlock_user(dirp, arg2, ret);
6566 }
6567 #endif
6568 break;
6569 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
6570 case TARGET_NR_getdents64:
6571 {
6572 struct linux_dirent64 *dirp;
6573 abi_long count = arg3;
6574 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6575 goto efault;
6576 ret = get_errno(sys_getdents64(arg1, dirp, count));
6577 if (!is_error(ret)) {
6578 struct linux_dirent64 *de;
6579 int len = ret;
6580 int reclen;
6581 de = dirp;
6582 while (len > 0) {
6583 reclen = de->d_reclen;
6584 if (reclen > len)
6585 break;
6586 de->d_reclen = tswap16(reclen);
6587 tswap64s((uint64_t *)&de->d_ino);
6588 tswap64s((uint64_t *)&de->d_off);
6589 de = (struct linux_dirent64 *)((char *)de + reclen);
6590 len -= reclen;
6591 }
6592 }
6593 unlock_user(dirp, arg2, ret);
6594 }
6595 break;
6596 #endif /* TARGET_NR_getdents64 */
6597 #if defined(TARGET_NR__newselect) || defined(TARGET_S390X)
6598 #ifdef TARGET_S390X
6599 case TARGET_NR_select:
6600 #else
6601 case TARGET_NR__newselect:
6602 #endif
6603 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6604 break;
6605 #endif
6606 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
6607 # ifdef TARGET_NR_poll
6608 case TARGET_NR_poll:
6609 # endif
6610 # ifdef TARGET_NR_ppoll
6611 case TARGET_NR_ppoll:
6612 # endif
6613 {
6614 struct target_pollfd *target_pfd;
6615 unsigned int nfds = arg2;
6616 int timeout = arg3;
6617 struct pollfd *pfd;
6618 unsigned int i;
6619
6620 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
6621 if (!target_pfd)
6622 goto efault;
6623
6624 pfd = alloca(sizeof(struct pollfd) * nfds);
6625 for(i = 0; i < nfds; i++) {
6626 pfd[i].fd = tswap32(target_pfd[i].fd);
6627 pfd[i].events = tswap16(target_pfd[i].events);
6628 }
6629
6630 # ifdef TARGET_NR_ppoll
6631 if (num == TARGET_NR_ppoll) {
6632 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
6633 target_sigset_t *target_set;
6634 sigset_t _set, *set = &_set;
6635
6636 if (arg3) {
6637 if (target_to_host_timespec(timeout_ts, arg3)) {
6638 unlock_user(target_pfd, arg1, 0);
6639 goto efault;
6640 }
6641 } else {
6642 timeout_ts = NULL;
6643 }
6644
6645 if (arg4) {
6646 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
6647 if (!target_set) {
6648 unlock_user(target_pfd, arg1, 0);
6649 goto efault;
6650 }
6651 target_to_host_sigset(set, target_set);
6652 } else {
6653 set = NULL;
6654 }
6655
6656 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
6657
6658 if (!is_error(ret) && arg3) {
6659 host_to_target_timespec(arg3, timeout_ts);
6660 }
6661 if (arg4) {
6662 unlock_user(target_set, arg4, 0);
6663 }
6664 } else
6665 # endif
6666 ret = get_errno(poll(pfd, nfds, timeout));
6667
6668 if (!is_error(ret)) {
6669 for(i = 0; i < nfds; i++) {
6670 target_pfd[i].revents = tswap16(pfd[i].revents);
6671 }
6672 }
6673 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
6674 }
6675 break;
6676 #endif
6677 case TARGET_NR_flock:
6678 /* NOTE: the flock constant seems to be the same for every
6679 Linux platform */
6680 ret = get_errno(flock(arg1, arg2));
6681 break;
6682 case TARGET_NR_readv:
6683 {
6684 int count = arg3;
6685 struct iovec *vec;
6686
6687 vec = alloca(count * sizeof(struct iovec));
6688 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
6689 goto efault;
6690 ret = get_errno(readv(arg1, vec, count));
6691 unlock_iovec(vec, arg2, count, 1);
6692 }
6693 break;
6694 case TARGET_NR_writev:
6695 {
6696 int count = arg3;
6697 struct iovec *vec;
6698
6699 vec = alloca(count * sizeof(struct iovec));
6700 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6701 goto efault;
6702 ret = get_errno(writev(arg1, vec, count));
6703 unlock_iovec(vec, arg2, count, 0);
6704 }
6705 break;
6706 case TARGET_NR_getsid:
6707 ret = get_errno(getsid(arg1));
6708 break;
6709 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
6710 case TARGET_NR_fdatasync:
6711 ret = get_errno(fdatasync(arg1));
6712 break;
6713 #endif
6714 case TARGET_NR__sysctl:
6715 /* We don't implement this, but ENOTDIR is always a safe
6716 return value. */
6717 ret = -TARGET_ENOTDIR;
6718 break;
6719 case TARGET_NR_sched_getaffinity:
6720 {
6721 unsigned int mask_size;
6722 unsigned long *mask;
6723
6724 /*
6725 * sched_getaffinity needs multiples of ulong, so need to take
6726 * care of mismatches between target ulong and host ulong sizes.
6727 */
6728 if (arg2 & (sizeof(abi_ulong) - 1)) {
6729 ret = -TARGET_EINVAL;
6730 break;
6731 }
6732 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
6733
6734 mask = alloca(mask_size);
6735 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
6736
6737 if (!is_error(ret)) {
6738 if (copy_to_user(arg3, mask, ret)) {
6739 goto efault;
6740 }
6741 }
6742 }
6743 break;
6744 case TARGET_NR_sched_setaffinity:
6745 {
6746 unsigned int mask_size;
6747 unsigned long *mask;
6748
6749 /*
6750 * sched_setaffinity needs multiples of ulong, so need to take
6751 * care of mismatches between target ulong and host ulong sizes.
6752 */
6753 if (arg2 & (sizeof(abi_ulong) - 1)) {
6754 ret = -TARGET_EINVAL;
6755 break;
6756 }
6757 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
6758
6759 mask = alloca(mask_size);
6760 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
6761 goto efault;
6762 }
6763 memcpy(mask, p, arg2);
6764 unlock_user_struct(p, arg2, 0);
6765
6766 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
6767 }
6768 break;
6769 case TARGET_NR_sched_setparam:
6770 {
6771 struct sched_param *target_schp;
6772 struct sched_param schp;
6773
6774 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
6775 goto efault;
6776 schp.sched_priority = tswap32(target_schp->sched_priority);
6777 unlock_user_struct(target_schp, arg2, 0);
6778 ret = get_errno(sched_setparam(arg1, &schp));
6779 }
6780 break;
6781 case TARGET_NR_sched_getparam:
6782 {
6783 struct sched_param *target_schp;
6784 struct sched_param schp;
6785 ret = get_errno(sched_getparam(arg1, &schp));
6786 if (!is_error(ret)) {
6787 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
6788 goto efault;
6789 target_schp->sched_priority = tswap32(schp.sched_priority);
6790 unlock_user_struct(target_schp, arg2, 1);
6791 }
6792 }
6793 break;
6794 case TARGET_NR_sched_setscheduler:
6795 {
6796 struct sched_param *target_schp;
6797 struct sched_param schp;
6798 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6799 goto efault;
6800 schp.sched_priority = tswap32(target_schp->sched_priority);
6801 unlock_user_struct(target_schp, arg3, 0);
6802 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6803 }
6804 break;
6805 case TARGET_NR_sched_getscheduler:
6806 ret = get_errno(sched_getscheduler(arg1));
6807 break;
6808 case TARGET_NR_sched_yield:
6809 ret = get_errno(sched_yield());
6810 break;
6811 case TARGET_NR_sched_get_priority_max:
6812 ret = get_errno(sched_get_priority_max(arg1));
6813 break;
6814 case TARGET_NR_sched_get_priority_min:
6815 ret = get_errno(sched_get_priority_min(arg1));
6816 break;
6817 case TARGET_NR_sched_rr_get_interval:
6818 {
6819 struct timespec ts;
6820 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6821 if (!is_error(ret)) {
6822 host_to_target_timespec(arg2, &ts);
6823 }
6824 }
6825 break;
6826 case TARGET_NR_nanosleep:
6827 {
6828 struct timespec req, rem;
6829 target_to_host_timespec(&req, arg1);
6830 ret = get_errno(nanosleep(&req, &rem));
6831 if (is_error(ret) && arg2) {
6832 host_to_target_timespec(arg2, &rem);
6833 }
6834 }
6835 break;
6836 #ifdef TARGET_NR_query_module
6837 case TARGET_NR_query_module:
6838 goto unimplemented;
6839 #endif
6840 #ifdef TARGET_NR_nfsservctl
6841 case TARGET_NR_nfsservctl:
6842 goto unimplemented;
6843 #endif
6844 case TARGET_NR_prctl:
6845 switch (arg1)
6846 {
6847 case PR_GET_PDEATHSIG:
6848 {
6849 int deathsig;
6850 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6851 if (!is_error(ret) && arg2
6852 && put_user_ual(deathsig, arg2))
6853 goto efault;
6854 }
6855 break;
6856 default:
6857 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6858 break;
6859 }
6860 break;
6861 #ifdef TARGET_NR_arch_prctl
6862 case TARGET_NR_arch_prctl:
6863 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6864 ret = do_arch_prctl(cpu_env, arg1, arg2);
6865 break;
6866 #else
6867 goto unimplemented;
6868 #endif
6869 #endif
6870 #ifdef TARGET_NR_pread
6871 case TARGET_NR_pread:
6872 if (regpairs_aligned(cpu_env))
6873 arg4 = arg5;
6874 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6875 goto efault;
6876 ret = get_errno(pread(arg1, p, arg3, arg4));
6877 unlock_user(p, arg2, ret);
6878 break;
6879 case TARGET_NR_pwrite:
6880 if (regpairs_aligned(cpu_env))
6881 arg4 = arg5;
6882 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6883 goto efault;
6884 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6885 unlock_user(p, arg2, 0);
6886 break;
6887 #endif
6888 #ifdef TARGET_NR_pread64
6889 case TARGET_NR_pread64:
6890 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6891 goto efault;
6892 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6893 unlock_user(p, arg2, ret);
6894 break;
6895 case TARGET_NR_pwrite64:
6896 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6897 goto efault;
6898 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6899 unlock_user(p, arg2, 0);
6900 break;
6901 #endif
6902 case TARGET_NR_getcwd:
6903 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6904 goto efault;
6905 ret = get_errno(sys_getcwd1(p, arg2));
6906 unlock_user(p, arg1, ret);
6907 break;
6908 case TARGET_NR_capget:
6909 goto unimplemented;
6910 case TARGET_NR_capset:
6911 goto unimplemented;
6912 case TARGET_NR_sigaltstack:
6913 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6914 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6915 defined(TARGET_M68K) || defined(TARGET_S390X)
6916 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6917 break;
6918 #else
6919 goto unimplemented;
6920 #endif
6921 case TARGET_NR_sendfile:
6922 goto unimplemented;
6923 #ifdef TARGET_NR_getpmsg
6924 case TARGET_NR_getpmsg:
6925 goto unimplemented;
6926 #endif
6927 #ifdef TARGET_NR_putpmsg
6928 case TARGET_NR_putpmsg:
6929 goto unimplemented;
6930 #endif
6931 #ifdef TARGET_NR_vfork
6932 case TARGET_NR_vfork:
6933 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6934 0, 0, 0, 0));
6935 break;
6936 #endif
6937 #ifdef TARGET_NR_ugetrlimit
6938 case TARGET_NR_ugetrlimit:
6939 {
6940 struct rlimit rlim;
6941 int resource = target_to_host_resource(arg1);
6942 ret = get_errno(getrlimit(resource, &rlim));
6943 if (!is_error(ret)) {
6944 struct target_rlimit *target_rlim;
6945 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6946 goto efault;
6947 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6948 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6949 unlock_user_struct(target_rlim, arg2, 1);
6950 }
6951 break;
6952 }
6953 #endif
6954 #ifdef TARGET_NR_truncate64
6955 case TARGET_NR_truncate64:
6956 if (!(p = lock_user_string(arg1)))
6957 goto efault;
6958 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6959 unlock_user(p, arg1, 0);
6960 break;
6961 #endif
6962 #ifdef TARGET_NR_ftruncate64
6963 case TARGET_NR_ftruncate64:
6964 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6965 break;
6966 #endif
6967 #ifdef TARGET_NR_stat64
6968 case TARGET_NR_stat64:
6969 if (!(p = lock_user_string(arg1)))
6970 goto efault;
6971 ret = get_errno(stat(path(p), &st));
6972 unlock_user(p, arg1, 0);
6973 if (!is_error(ret))
6974 ret = host_to_target_stat64(cpu_env, arg2, &st);
6975 break;
6976 #endif
6977 #ifdef TARGET_NR_lstat64
6978 case TARGET_NR_lstat64:
6979 if (!(p = lock_user_string(arg1)))
6980 goto efault;
6981 ret = get_errno(lstat(path(p), &st));
6982 unlock_user(p, arg1, 0);
6983 if (!is_error(ret))
6984 ret = host_to_target_stat64(cpu_env, arg2, &st);
6985 break;
6986 #endif
6987 #ifdef TARGET_NR_fstat64
6988 case TARGET_NR_fstat64:
6989 ret = get_errno(fstat(arg1, &st));
6990 if (!is_error(ret))
6991 ret = host_to_target_stat64(cpu_env, arg2, &st);
6992 break;
6993 #endif
6994 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6995 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6996 #ifdef TARGET_NR_fstatat64
6997 case TARGET_NR_fstatat64:
6998 #endif
6999 #ifdef TARGET_NR_newfstatat
7000 case TARGET_NR_newfstatat:
7001 #endif
7002 if (!(p = lock_user_string(arg2)))
7003 goto efault;
7004 #ifdef __NR_fstatat64
7005 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
7006 #else
7007 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
7008 #endif
7009 if (!is_error(ret))
7010 ret = host_to_target_stat64(cpu_env, arg3, &st);
7011 break;
7012 #endif
7013 case TARGET_NR_lchown:
7014 if (!(p = lock_user_string(arg1)))
7015 goto efault;
7016 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
7017 unlock_user(p, arg1, 0);
7018 break;
7019 #ifdef TARGET_NR_getuid
7020 case TARGET_NR_getuid:
7021 ret = get_errno(high2lowuid(getuid()));
7022 break;
7023 #endif
7024 #ifdef TARGET_NR_getgid
7025 case TARGET_NR_getgid:
7026 ret = get_errno(high2lowgid(getgid()));
7027 break;
7028 #endif
7029 #ifdef TARGET_NR_geteuid
7030 case TARGET_NR_geteuid:
7031 ret = get_errno(high2lowuid(geteuid()));
7032 break;
7033 #endif
7034 #ifdef TARGET_NR_getegid
7035 case TARGET_NR_getegid:
7036 ret = get_errno(high2lowgid(getegid()));
7037 break;
7038 #endif
7039 case TARGET_NR_setreuid:
7040 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
7041 break;
7042 case TARGET_NR_setregid:
7043 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
7044 break;
7045 case TARGET_NR_getgroups:
7046 {
7047 int gidsetsize = arg1;
7048 target_id *target_grouplist;
7049 gid_t *grouplist;
7050 int i;
7051
7052 grouplist = alloca(gidsetsize * sizeof(gid_t));
7053 ret = get_errno(getgroups(gidsetsize, grouplist));
7054 if (gidsetsize == 0)
7055 break;
7056 if (!is_error(ret)) {
7057 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
7058 if (!target_grouplist)
7059 goto efault;
7060 for(i = 0;i < ret; i++)
7061 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
7062 unlock_user(target_grouplist, arg2, gidsetsize * 2);
7063 }
7064 }
7065 break;
7066 case TARGET_NR_setgroups:
7067 {
7068 int gidsetsize = arg1;
7069 target_id *target_grouplist;
7070 gid_t *grouplist;
7071 int i;
7072
7073 grouplist = alloca(gidsetsize * sizeof(gid_t));
7074 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
7075 if (!target_grouplist) {
7076 ret = -TARGET_EFAULT;
7077 goto fail;
7078 }
7079 for(i = 0;i < gidsetsize; i++)
7080 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
7081 unlock_user(target_grouplist, arg2, 0);
7082 ret = get_errno(setgroups(gidsetsize, grouplist));
7083 }
7084 break;
7085 case TARGET_NR_fchown:
7086 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
7087 break;
7088 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
7089 case TARGET_NR_fchownat:
7090 if (!(p = lock_user_string(arg2)))
7091 goto efault;
7092 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
7093 unlock_user(p, arg2, 0);
7094 break;
7095 #endif
7096 #ifdef TARGET_NR_setresuid
7097 case TARGET_NR_setresuid:
7098 ret = get_errno(setresuid(low2highuid(arg1),
7099 low2highuid(arg2),
7100 low2highuid(arg3)));
7101 break;
7102 #endif
7103 #ifdef TARGET_NR_getresuid
7104 case TARGET_NR_getresuid:
7105 {
7106 uid_t ruid, euid, suid;
7107 ret = get_errno(getresuid(&ruid, &euid, &suid));
7108 if (!is_error(ret)) {
7109 if (put_user_u16(high2lowuid(ruid), arg1)
7110 || put_user_u16(high2lowuid(euid), arg2)
7111 || put_user_u16(high2lowuid(suid), arg3))
7112 goto efault;
7113 }
7114 }
7115 break;
7116 #endif
7117 #ifdef TARGET_NR_getresgid
7118 case TARGET_NR_setresgid:
7119 ret = get_errno(setresgid(low2highgid(arg1),
7120 low2highgid(arg2),
7121 low2highgid(arg3)));
7122 break;
7123 #endif
7124 #ifdef TARGET_NR_getresgid
7125 case TARGET_NR_getresgid:
7126 {
7127 gid_t rgid, egid, sgid;
7128 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7129 if (!is_error(ret)) {
7130 if (put_user_u16(high2lowgid(rgid), arg1)
7131 || put_user_u16(high2lowgid(egid), arg2)
7132 || put_user_u16(high2lowgid(sgid), arg3))
7133 goto efault;
7134 }
7135 }
7136 break;
7137 #endif
7138 case TARGET_NR_chown:
7139 if (!(p = lock_user_string(arg1)))
7140 goto efault;
7141 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
7142 unlock_user(p, arg1, 0);
7143 break;
7144 case TARGET_NR_setuid:
7145 ret = get_errno(setuid(low2highuid(arg1)));
7146 break;
7147 case TARGET_NR_setgid:
7148 ret = get_errno(setgid(low2highgid(arg1)));
7149 break;
7150 case TARGET_NR_setfsuid:
7151 ret = get_errno(setfsuid(arg1));
7152 break;
7153 case TARGET_NR_setfsgid:
7154 ret = get_errno(setfsgid(arg1));
7155 break;
7156
7157 #ifdef TARGET_NR_lchown32
7158 case TARGET_NR_lchown32:
7159 if (!(p = lock_user_string(arg1)))
7160 goto efault;
7161 ret = get_errno(lchown(p, arg2, arg3));
7162 unlock_user(p, arg1, 0);
7163 break;
7164 #endif
7165 #ifdef TARGET_NR_getuid32
7166 case TARGET_NR_getuid32:
7167 ret = get_errno(getuid());
7168 break;
7169 #endif
7170
7171 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
7172 /* Alpha specific */
7173 case TARGET_NR_getxuid:
7174 {
7175 uid_t euid;
7176 euid=geteuid();
7177 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
7178 }
7179 ret = get_errno(getuid());
7180 break;
7181 #endif
7182 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
7183 /* Alpha specific */
7184 case TARGET_NR_getxgid:
7185 {
7186 uid_t egid;
7187 egid=getegid();
7188 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
7189 }
7190 ret = get_errno(getgid());
7191 break;
7192 #endif
7193 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
7194 /* Alpha specific */
7195 case TARGET_NR_osf_getsysinfo:
7196 ret = -TARGET_EOPNOTSUPP;
7197 switch (arg1) {
7198 case TARGET_GSI_IEEE_FP_CONTROL:
7199 {
7200 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
7201
7202 /* Copied from linux ieee_fpcr_to_swcr. */
7203 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
7204 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
7205 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
7206 | SWCR_TRAP_ENABLE_DZE
7207 | SWCR_TRAP_ENABLE_OVF);
7208 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
7209 | SWCR_TRAP_ENABLE_INE);
7210 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
7211 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
7212
7213 if (put_user_u64 (swcr, arg2))
7214 goto efault;
7215 ret = 0;
7216 }
7217 break;
7218
7219 /* case GSI_IEEE_STATE_AT_SIGNAL:
7220 -- Not implemented in linux kernel.
7221 case GSI_UACPROC:
7222 -- Retrieves current unaligned access state; not much used.
7223 case GSI_PROC_TYPE:
7224 -- Retrieves implver information; surely not used.
7225 case GSI_GET_HWRPB:
7226 -- Grabs a copy of the HWRPB; surely not used.
7227 */
7228 }
7229 break;
7230 #endif
7231 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
7232 /* Alpha specific */
7233 case TARGET_NR_osf_setsysinfo:
7234 ret = -TARGET_EOPNOTSUPP;
7235 switch (arg1) {
7236 case TARGET_SSI_IEEE_FP_CONTROL:
7237 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
7238 {
7239 uint64_t swcr, fpcr, orig_fpcr;
7240
7241 if (get_user_u64 (swcr, arg2))
7242 goto efault;
7243 orig_fpcr = cpu_alpha_load_fpcr (cpu_env);
7244 fpcr = orig_fpcr & FPCR_DYN_MASK;
7245
7246 /* Copied from linux ieee_swcr_to_fpcr. */
7247 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
7248 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
7249 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
7250 | SWCR_TRAP_ENABLE_DZE
7251 | SWCR_TRAP_ENABLE_OVF)) << 48;
7252 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
7253 | SWCR_TRAP_ENABLE_INE)) << 57;
7254 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
7255 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
7256
7257 cpu_alpha_store_fpcr (cpu_env, fpcr);
7258 ret = 0;
7259
7260 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) {
7261 /* Old exceptions are not signaled. */
7262 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
7263
7264 /* If any exceptions set by this call, and are unmasked,
7265 send a signal. */
7266 /* ??? FIXME */
7267 }
7268 }
7269 break;
7270
7271 /* case SSI_NVPAIRS:
7272 -- Used with SSIN_UACPROC to enable unaligned accesses.
7273 case SSI_IEEE_STATE_AT_SIGNAL:
7274 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
7275 -- Not implemented in linux kernel
7276 */
7277 }
7278 break;
7279 #endif
7280 #ifdef TARGET_NR_osf_sigprocmask
7281 /* Alpha specific. */
7282 case TARGET_NR_osf_sigprocmask:
7283 {
7284 abi_ulong mask;
7285 int how;
7286 sigset_t set, oldset;
7287
7288 switch(arg1) {
7289 case TARGET_SIG_BLOCK:
7290 how = SIG_BLOCK;
7291 break;
7292 case TARGET_SIG_UNBLOCK:
7293 how = SIG_UNBLOCK;
7294 break;
7295 case TARGET_SIG_SETMASK:
7296 how = SIG_SETMASK;
7297 break;
7298 default:
7299 ret = -TARGET_EINVAL;
7300 goto fail;
7301 }
7302 mask = arg2;
7303 target_to_host_old_sigset(&set, &mask);
7304 sigprocmask(how, &set, &oldset);
7305 host_to_target_old_sigset(&mask, &oldset);
7306 ret = mask;
7307 }
7308 break;
7309 #endif
7310
7311 #ifdef TARGET_NR_getgid32
7312 case TARGET_NR_getgid32:
7313 ret = get_errno(getgid());
7314 break;
7315 #endif
7316 #ifdef TARGET_NR_geteuid32
7317 case TARGET_NR_geteuid32:
7318 ret = get_errno(geteuid());
7319 break;
7320 #endif
7321 #ifdef TARGET_NR_getegid32
7322 case TARGET_NR_getegid32:
7323 ret = get_errno(getegid());
7324 break;
7325 #endif
7326 #ifdef TARGET_NR_setreuid32
7327 case TARGET_NR_setreuid32:
7328 ret = get_errno(setreuid(arg1, arg2));
7329 break;
7330 #endif
7331 #ifdef TARGET_NR_setregid32
7332 case TARGET_NR_setregid32:
7333 ret = get_errno(setregid(arg1, arg2));
7334 break;
7335 #endif
7336 #ifdef TARGET_NR_getgroups32
7337 case TARGET_NR_getgroups32:
7338 {
7339 int gidsetsize = arg1;
7340 uint32_t *target_grouplist;
7341 gid_t *grouplist;
7342 int i;
7343
7344 grouplist = alloca(gidsetsize * sizeof(gid_t));
7345 ret = get_errno(getgroups(gidsetsize, grouplist));
7346 if (gidsetsize == 0)
7347 break;
7348 if (!is_error(ret)) {
7349 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
7350 if (!target_grouplist) {
7351 ret = -TARGET_EFAULT;
7352 goto fail;
7353 }
7354 for(i = 0;i < ret; i++)
7355 target_grouplist[i] = tswap32(grouplist[i]);
7356 unlock_user(target_grouplist, arg2, gidsetsize * 4);
7357 }
7358 }
7359 break;
7360 #endif
7361 #ifdef TARGET_NR_setgroups32
7362 case TARGET_NR_setgroups32:
7363 {
7364 int gidsetsize = arg1;
7365 uint32_t *target_grouplist;
7366 gid_t *grouplist;
7367 int i;
7368
7369 grouplist = alloca(gidsetsize * sizeof(gid_t));
7370 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
7371 if (!target_grouplist) {
7372 ret = -TARGET_EFAULT;
7373 goto fail;
7374 }
7375 for(i = 0;i < gidsetsize; i++)
7376 grouplist[i] = tswap32(target_grouplist[i]);
7377 unlock_user(target_grouplist, arg2, 0);
7378 ret = get_errno(setgroups(gidsetsize, grouplist));
7379 }
7380 break;
7381 #endif
7382 #ifdef TARGET_NR_fchown32
7383 case TARGET_NR_fchown32:
7384 ret = get_errno(fchown(arg1, arg2, arg3));
7385 break;
7386 #endif
7387 #ifdef TARGET_NR_setresuid32
7388 case TARGET_NR_setresuid32:
7389 ret = get_errno(setresuid(arg1, arg2, arg3));
7390 break;
7391 #endif
7392 #ifdef TARGET_NR_getresuid32
7393 case TARGET_NR_getresuid32:
7394 {
7395 uid_t ruid, euid, suid;
7396 ret = get_errno(getresuid(&ruid, &euid, &suid));
7397 if (!is_error(ret)) {
7398 if (put_user_u32(ruid, arg1)
7399 || put_user_u32(euid, arg2)
7400 || put_user_u32(suid, arg3))
7401 goto efault;
7402 }
7403 }
7404 break;
7405 #endif
7406 #ifdef TARGET_NR_setresgid32
7407 case TARGET_NR_setresgid32:
7408 ret = get_errno(setresgid(arg1, arg2, arg3));
7409 break;
7410 #endif
7411 #ifdef TARGET_NR_getresgid32
7412 case TARGET_NR_getresgid32:
7413 {
7414 gid_t rgid, egid, sgid;
7415 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7416 if (!is_error(ret)) {
7417 if (put_user_u32(rgid, arg1)
7418 || put_user_u32(egid, arg2)
7419 || put_user_u32(sgid, arg3))
7420 goto efault;
7421 }
7422 }
7423 break;
7424 #endif
7425 #ifdef TARGET_NR_chown32
7426 case TARGET_NR_chown32:
7427 if (!(p = lock_user_string(arg1)))
7428 goto efault;
7429 ret = get_errno(chown(p, arg2, arg3));
7430 unlock_user(p, arg1, 0);
7431 break;
7432 #endif
7433 #ifdef TARGET_NR_setuid32
7434 case TARGET_NR_setuid32:
7435 ret = get_errno(setuid(arg1));
7436 break;
7437 #endif
7438 #ifdef TARGET_NR_setgid32
7439 case TARGET_NR_setgid32:
7440 ret = get_errno(setgid(arg1));
7441 break;
7442 #endif
7443 #ifdef TARGET_NR_setfsuid32
7444 case TARGET_NR_setfsuid32:
7445 ret = get_errno(setfsuid(arg1));
7446 break;
7447 #endif
7448 #ifdef TARGET_NR_setfsgid32
7449 case TARGET_NR_setfsgid32:
7450 ret = get_errno(setfsgid(arg1));
7451 break;
7452 #endif
7453
7454 case TARGET_NR_pivot_root:
7455 goto unimplemented;
7456 #ifdef TARGET_NR_mincore
7457 case TARGET_NR_mincore:
7458 {
7459 void *a;
7460 ret = -TARGET_EFAULT;
7461 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
7462 goto efault;
7463 if (!(p = lock_user_string(arg3)))
7464 goto mincore_fail;
7465 ret = get_errno(mincore(a, arg2, p));
7466 unlock_user(p, arg3, ret);
7467 mincore_fail:
7468 unlock_user(a, arg1, 0);
7469 }
7470 break;
7471 #endif
7472 #ifdef TARGET_NR_arm_fadvise64_64
7473 case TARGET_NR_arm_fadvise64_64:
7474 {
7475 /*
7476 * arm_fadvise64_64 looks like fadvise64_64 but
7477 * with different argument order
7478 */
7479 abi_long temp;
7480 temp = arg3;
7481 arg3 = arg4;
7482 arg4 = temp;
7483 }
7484 #endif
7485 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
7486 #ifdef TARGET_NR_fadvise64_64
7487 case TARGET_NR_fadvise64_64:
7488 #endif
7489 #ifdef TARGET_NR_fadvise64
7490 case TARGET_NR_fadvise64:
7491 #endif
7492 #ifdef TARGET_S390X
7493 switch (arg4) {
7494 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
7495 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
7496 case 6: arg4 = POSIX_FADV_DONTNEED; break;
7497 case 7: arg4 = POSIX_FADV_NOREUSE; break;
7498 default: break;
7499 }
7500 #endif
7501 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
7502 break;
7503 #endif
7504 #ifdef TARGET_NR_madvise
7505 case TARGET_NR_madvise:
7506 /* A straight passthrough may not be safe because qemu sometimes
7507 turns private flie-backed mappings into anonymous mappings.
7508 This will break MADV_DONTNEED.
7509 This is a hint, so ignoring and returning success is ok. */
7510 ret = get_errno(0);
7511 break;
7512 #endif
7513 #if TARGET_ABI_BITS == 32
7514 case TARGET_NR_fcntl64:
7515 {
7516 int cmd;
7517 struct flock64 fl;
7518 struct target_flock64 *target_fl;
7519 #ifdef TARGET_ARM
7520 struct target_eabi_flock64 *target_efl;
7521 #endif
7522
7523 cmd = target_to_host_fcntl_cmd(arg2);
7524 if (cmd == -TARGET_EINVAL)
7525 return cmd;
7526
7527 switch(arg2) {
7528 case TARGET_F_GETLK64:
7529 #ifdef TARGET_ARM
7530 if (((CPUARMState *)cpu_env)->eabi) {
7531 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7532 goto efault;
7533 fl.l_type = tswap16(target_efl->l_type);
7534 fl.l_whence = tswap16(target_efl->l_whence);
7535 fl.l_start = tswap64(target_efl->l_start);
7536 fl.l_len = tswap64(target_efl->l_len);
7537 fl.l_pid = tswap32(target_efl->l_pid);
7538 unlock_user_struct(target_efl, arg3, 0);
7539 } else
7540 #endif
7541 {
7542 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7543 goto efault;
7544 fl.l_type = tswap16(target_fl->l_type);
7545 fl.l_whence = tswap16(target_fl->l_whence);
7546 fl.l_start = tswap64(target_fl->l_start);
7547 fl.l_len = tswap64(target_fl->l_len);
7548 fl.l_pid = tswap32(target_fl->l_pid);
7549 unlock_user_struct(target_fl, arg3, 0);
7550 }
7551 ret = get_errno(fcntl(arg1, cmd, &fl));
7552 if (ret == 0) {
7553 #ifdef TARGET_ARM
7554 if (((CPUARMState *)cpu_env)->eabi) {
7555 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
7556 goto efault;
7557 target_efl->l_type = tswap16(fl.l_type);
7558 target_efl->l_whence = tswap16(fl.l_whence);
7559 target_efl->l_start = tswap64(fl.l_start);
7560 target_efl->l_len = tswap64(fl.l_len);
7561 target_efl->l_pid = tswap32(fl.l_pid);
7562 unlock_user_struct(target_efl, arg3, 1);
7563 } else
7564 #endif
7565 {
7566 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
7567 goto efault;
7568 target_fl->l_type = tswap16(fl.l_type);
7569 target_fl->l_whence = tswap16(fl.l_whence);
7570 target_fl->l_start = tswap64(fl.l_start);
7571 target_fl->l_len = tswap64(fl.l_len);
7572 target_fl->l_pid = tswap32(fl.l_pid);
7573 unlock_user_struct(target_fl, arg3, 1);
7574 }
7575 }
7576 break;
7577
7578 case TARGET_F_SETLK64:
7579 case TARGET_F_SETLKW64:
7580 #ifdef TARGET_ARM
7581 if (((CPUARMState *)cpu_env)->eabi) {
7582 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7583 goto efault;
7584 fl.l_type = tswap16(target_efl->l_type);
7585 fl.l_whence = tswap16(target_efl->l_whence);
7586 fl.l_start = tswap64(target_efl->l_start);
7587 fl.l_len = tswap64(target_efl->l_len);
7588 fl.l_pid = tswap32(target_efl->l_pid);
7589 unlock_user_struct(target_efl, arg3, 0);
7590 } else
7591 #endif
7592 {
7593 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7594 goto efault;
7595 fl.l_type = tswap16(target_fl->l_type);
7596 fl.l_whence = tswap16(target_fl->l_whence);
7597 fl.l_start = tswap64(target_fl->l_start);
7598 fl.l_len = tswap64(target_fl->l_len);
7599 fl.l_pid = tswap32(target_fl->l_pid);
7600 unlock_user_struct(target_fl, arg3, 0);
7601 }
7602 ret = get_errno(fcntl(arg1, cmd, &fl));
7603 break;
7604 default:
7605 ret = do_fcntl(arg1, arg2, arg3);
7606 break;
7607 }
7608 break;
7609 }
7610 #endif
7611 #ifdef TARGET_NR_cacheflush
7612 case TARGET_NR_cacheflush:
7613 /* self-modifying code is handled automatically, so nothing needed */
7614 ret = 0;
7615 break;
7616 #endif
7617 #ifdef TARGET_NR_security
7618 case TARGET_NR_security:
7619 goto unimplemented;
7620 #endif
7621 #ifdef TARGET_NR_getpagesize
7622 case TARGET_NR_getpagesize:
7623 ret = TARGET_PAGE_SIZE;
7624 break;
7625 #endif
7626 case TARGET_NR_gettid:
7627 ret = get_errno(gettid());
7628 break;
7629 #ifdef TARGET_NR_readahead
7630 case TARGET_NR_readahead:
7631 #if TARGET_ABI_BITS == 32
7632 if (regpairs_aligned(cpu_env)) {
7633 arg2 = arg3;
7634 arg3 = arg4;
7635 arg4 = arg5;
7636 }
7637 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
7638 #else
7639 ret = get_errno(readahead(arg1, arg2, arg3));
7640 #endif
7641 break;
7642 #endif
7643 #ifdef CONFIG_ATTR
7644 #ifdef TARGET_NR_setxattr
7645 case TARGET_NR_lsetxattr:
7646 case TARGET_NR_fsetxattr:
7647 case TARGET_NR_lgetxattr:
7648 case TARGET_NR_fgetxattr:
7649 case TARGET_NR_listxattr:
7650 case TARGET_NR_llistxattr:
7651 case TARGET_NR_flistxattr:
7652 case TARGET_NR_lremovexattr:
7653 case TARGET_NR_fremovexattr:
7654 ret = -TARGET_EOPNOTSUPP;
7655 break;
7656 case TARGET_NR_setxattr:
7657 {
7658 void *p, *n, *v;
7659 p = lock_user_string(arg1);
7660 n = lock_user_string(arg2);
7661 v = lock_user(VERIFY_READ, arg3, arg4, 1);
7662 if (p && n && v) {
7663 ret = get_errno(setxattr(p, n, v, arg4, arg5));
7664 } else {
7665 ret = -TARGET_EFAULT;
7666 }
7667 unlock_user(p, arg1, 0);
7668 unlock_user(n, arg2, 0);
7669 unlock_user(v, arg3, 0);
7670 }
7671 break;
7672 case TARGET_NR_getxattr:
7673 {
7674 void *p, *n, *v;
7675 p = lock_user_string(arg1);
7676 n = lock_user_string(arg2);
7677 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
7678 if (p && n && v) {
7679 ret = get_errno(getxattr(p, n, v, arg4));
7680 } else {
7681 ret = -TARGET_EFAULT;
7682 }
7683 unlock_user(p, arg1, 0);
7684 unlock_user(n, arg2, 0);
7685 unlock_user(v, arg3, arg4);
7686 }
7687 break;
7688 case TARGET_NR_removexattr:
7689 {
7690 void *p, *n;
7691 p = lock_user_string(arg1);
7692 n = lock_user_string(arg2);
7693 if (p && n) {
7694 ret = get_errno(removexattr(p, n));
7695 } else {
7696 ret = -TARGET_EFAULT;
7697 }
7698 unlock_user(p, arg1, 0);
7699 unlock_user(n, arg2, 0);
7700 }
7701 break;
7702 #endif
7703 #endif /* CONFIG_ATTR */
7704 #ifdef TARGET_NR_set_thread_area
7705 case TARGET_NR_set_thread_area:
7706 #if defined(TARGET_MIPS)
7707 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
7708 ret = 0;
7709 break;
7710 #elif defined(TARGET_CRIS)
7711 if (arg1 & 0xff)
7712 ret = -TARGET_EINVAL;
7713 else {
7714 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
7715 ret = 0;
7716 }
7717 break;
7718 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
7719 ret = do_set_thread_area(cpu_env, arg1);
7720 break;
7721 #else
7722 goto unimplemented_nowarn;
7723 #endif
7724 #endif
7725 #ifdef TARGET_NR_get_thread_area
7726 case TARGET_NR_get_thread_area:
7727 #if defined(TARGET_I386) && defined(TARGET_ABI32)
7728 ret = do_get_thread_area(cpu_env, arg1);
7729 #else
7730 goto unimplemented_nowarn;
7731 #endif
7732 #endif
7733 #ifdef TARGET_NR_getdomainname
7734 case TARGET_NR_getdomainname:
7735 goto unimplemented_nowarn;
7736 #endif
7737
7738 #ifdef TARGET_NR_clock_gettime
7739 case TARGET_NR_clock_gettime:
7740 {
7741 struct timespec ts;
7742 ret = get_errno(clock_gettime(arg1, &ts));
7743 if (!is_error(ret)) {
7744 host_to_target_timespec(arg2, &ts);
7745 }
7746 break;
7747 }
7748 #endif
7749 #ifdef TARGET_NR_clock_getres
7750 case TARGET_NR_clock_getres:
7751 {
7752 struct timespec ts;
7753 ret = get_errno(clock_getres(arg1, &ts));
7754 if (!is_error(ret)) {
7755 host_to_target_timespec(arg2, &ts);
7756 }
7757 break;
7758 }
7759 #endif
7760 #ifdef TARGET_NR_clock_nanosleep
7761 case TARGET_NR_clock_nanosleep:
7762 {
7763 struct timespec ts;
7764 target_to_host_timespec(&ts, arg3);
7765 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
7766 if (arg4)
7767 host_to_target_timespec(arg4, &ts);
7768 break;
7769 }
7770 #endif
7771
7772 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
7773 case TARGET_NR_set_tid_address:
7774 ret = get_errno(set_tid_address((int *)g2h(arg1)));
7775 break;
7776 #endif
7777
7778 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
7779 case TARGET_NR_tkill:
7780 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
7781 break;
7782 #endif
7783
7784 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
7785 case TARGET_NR_tgkill:
7786 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
7787 target_to_host_signal(arg3)));
7788 break;
7789 #endif
7790
7791 #ifdef TARGET_NR_set_robust_list
7792 case TARGET_NR_set_robust_list:
7793 goto unimplemented_nowarn;
7794 #endif
7795
7796 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
7797 case TARGET_NR_utimensat:
7798 {
7799 struct timespec *tsp, ts[2];
7800 if (!arg3) {
7801 tsp = NULL;
7802 } else {
7803 target_to_host_timespec(ts, arg3);
7804 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
7805 tsp = ts;
7806 }
7807 if (!arg2)
7808 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
7809 else {
7810 if (!(p = lock_user_string(arg2))) {
7811 ret = -TARGET_EFAULT;
7812 goto fail;
7813 }
7814 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
7815 unlock_user(p, arg2, 0);
7816 }
7817 }
7818 break;
7819 #endif
7820 #if defined(CONFIG_USE_NPTL)
7821 case TARGET_NR_futex:
7822 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
7823 break;
7824 #endif
7825 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
7826 case TARGET_NR_inotify_init:
7827 ret = get_errno(sys_inotify_init());
7828 break;
7829 #endif
7830 #ifdef CONFIG_INOTIFY1
7831 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
7832 case TARGET_NR_inotify_init1:
7833 ret = get_errno(sys_inotify_init1(arg1));
7834 break;
7835 #endif
7836 #endif
7837 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
7838 case TARGET_NR_inotify_add_watch:
7839 p = lock_user_string(arg2);
7840 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
7841 unlock_user(p, arg2, 0);
7842 break;
7843 #endif
7844 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
7845 case TARGET_NR_inotify_rm_watch:
7846 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
7847 break;
7848 #endif
7849
7850 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
7851 case TARGET_NR_mq_open:
7852 {
7853 struct mq_attr posix_mq_attr;
7854
7855 p = lock_user_string(arg1 - 1);
7856 if (arg4 != 0)
7857 copy_from_user_mq_attr (&posix_mq_attr, arg4);
7858 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
7859 unlock_user (p, arg1, 0);
7860 }
7861 break;
7862
7863 case TARGET_NR_mq_unlink:
7864 p = lock_user_string(arg1 - 1);
7865 ret = get_errno(mq_unlink(p));
7866 unlock_user (p, arg1, 0);
7867 break;
7868
7869 case TARGET_NR_mq_timedsend:
7870 {
7871 struct timespec ts;
7872
7873 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7874 if (arg5 != 0) {
7875 target_to_host_timespec(&ts, arg5);
7876 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
7877 host_to_target_timespec(arg5, &ts);
7878 }
7879 else
7880 ret = get_errno(mq_send(arg1, p, arg3, arg4));
7881 unlock_user (p, arg2, arg3);
7882 }
7883 break;
7884
7885 case TARGET_NR_mq_timedreceive:
7886 {
7887 struct timespec ts;
7888 unsigned int prio;
7889
7890 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7891 if (arg5 != 0) {
7892 target_to_host_timespec(&ts, arg5);
7893 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
7894 host_to_target_timespec(arg5, &ts);
7895 }
7896 else
7897 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
7898 unlock_user (p, arg2, arg3);
7899 if (arg4 != 0)
7900 put_user_u32(prio, arg4);
7901 }
7902 break;
7903
7904 /* Not implemented for now... */
7905 /* case TARGET_NR_mq_notify: */
7906 /* break; */
7907
7908 case TARGET_NR_mq_getsetattr:
7909 {
7910 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
7911 ret = 0;
7912 if (arg3 != 0) {
7913 ret = mq_getattr(arg1, &posix_mq_attr_out);
7914 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
7915 }
7916 if (arg2 != 0) {
7917 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
7918 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
7919 }
7920
7921 }
7922 break;
7923 #endif
7924
7925 #ifdef CONFIG_SPLICE
7926 #ifdef TARGET_NR_tee
7927 case TARGET_NR_tee:
7928 {
7929 ret = get_errno(tee(arg1,arg2,arg3,arg4));
7930 }
7931 break;
7932 #endif
7933 #ifdef TARGET_NR_splice
7934 case TARGET_NR_splice:
7935 {
7936 loff_t loff_in, loff_out;
7937 loff_t *ploff_in = NULL, *ploff_out = NULL;
7938 if(arg2) {
7939 get_user_u64(loff_in, arg2);
7940 ploff_in = &loff_in;
7941 }
7942 if(arg4) {
7943 get_user_u64(loff_out, arg2);
7944 ploff_out = &loff_out;
7945 }
7946 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
7947 }
7948 break;
7949 #endif
7950 #ifdef TARGET_NR_vmsplice
7951 case TARGET_NR_vmsplice:
7952 {
7953 int count = arg3;
7954 struct iovec *vec;
7955
7956 vec = alloca(count * sizeof(struct iovec));
7957 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
7958 goto efault;
7959 ret = get_errno(vmsplice(arg1, vec, count, arg4));
7960 unlock_iovec(vec, arg2, count, 0);
7961 }
7962 break;
7963 #endif
7964 #endif /* CONFIG_SPLICE */
7965 #ifdef CONFIG_EVENTFD
7966 #if defined(TARGET_NR_eventfd)
7967 case TARGET_NR_eventfd:
7968 ret = get_errno(eventfd(arg1, 0));
7969 break;
7970 #endif
7971 #if defined(TARGET_NR_eventfd2)
7972 case TARGET_NR_eventfd2:
7973 ret = get_errno(eventfd(arg1, arg2));
7974 break;
7975 #endif
7976 #endif /* CONFIG_EVENTFD */
7977 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
7978 case TARGET_NR_fallocate:
7979 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
7980 break;
7981 #endif
7982 #if defined(CONFIG_SYNC_FILE_RANGE)
7983 #if defined(TARGET_NR_sync_file_range)
7984 case TARGET_NR_sync_file_range:
7985 #if TARGET_ABI_BITS == 32
7986 #if defined(TARGET_MIPS)
7987 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
7988 target_offset64(arg5, arg6), arg7));
7989 #else
7990 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
7991 target_offset64(arg4, arg5), arg6));
7992 #endif /* !TARGET_MIPS */
7993 #else
7994 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
7995 #endif
7996 break;
7997 #endif
7998 #if defined(TARGET_NR_sync_file_range2)
7999 case TARGET_NR_sync_file_range2:
8000 /* This is like sync_file_range but the arguments are reordered */
8001 #if TARGET_ABI_BITS == 32
8002 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8003 target_offset64(arg5, arg6), arg2));
8004 #else
8005 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
8006 #endif
8007 break;
8008 #endif
8009 #endif
8010 #if defined(CONFIG_EPOLL)
8011 #if defined(TARGET_NR_epoll_create)
8012 case TARGET_NR_epoll_create:
8013 ret = get_errno(epoll_create(arg1));
8014 break;
8015 #endif
8016 #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
8017 case TARGET_NR_epoll_create1:
8018 ret = get_errno(epoll_create1(arg1));
8019 break;
8020 #endif
8021 #if defined(TARGET_NR_epoll_ctl)
8022 case TARGET_NR_epoll_ctl:
8023 {
8024 struct epoll_event ep;
8025 struct epoll_event *epp = 0;
8026 if (arg4) {
8027 struct target_epoll_event *target_ep;
8028 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
8029 goto efault;
8030 }
8031 ep.events = tswap32(target_ep->events);
8032 /* The epoll_data_t union is just opaque data to the kernel,
8033 * so we transfer all 64 bits across and need not worry what
8034 * actual data type it is.
8035 */
8036 ep.data.u64 = tswap64(target_ep->data.u64);
8037 unlock_user_struct(target_ep, arg4, 0);
8038 epp = &ep;
8039 }
8040 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
8041 break;
8042 }
8043 #endif
8044
8045 #if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
8046 #define IMPLEMENT_EPOLL_PWAIT
8047 #endif
8048 #if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
8049 #if defined(TARGET_NR_epoll_wait)
8050 case TARGET_NR_epoll_wait:
8051 #endif
8052 #if defined(IMPLEMENT_EPOLL_PWAIT)
8053 case TARGET_NR_epoll_pwait:
8054 #endif
8055 {
8056 struct target_epoll_event *target_ep;
8057 struct epoll_event *ep;
8058 int epfd = arg1;
8059 int maxevents = arg3;
8060 int timeout = arg4;
8061
8062 target_ep = lock_user(VERIFY_WRITE, arg2,
8063 maxevents * sizeof(struct target_epoll_event), 1);
8064 if (!target_ep) {
8065 goto efault;
8066 }
8067
8068 ep = alloca(maxevents * sizeof(struct epoll_event));
8069
8070 switch (num) {
8071 #if defined(IMPLEMENT_EPOLL_PWAIT)
8072 case TARGET_NR_epoll_pwait:
8073 {
8074 target_sigset_t *target_set;
8075 sigset_t _set, *set = &_set;
8076
8077 if (arg5) {
8078 target_set = lock_user(VERIFY_READ, arg5,
8079 sizeof(target_sigset_t), 1);
8080 if (!target_set) {
8081 unlock_user(target_ep, arg2, 0);
8082 goto efault;
8083 }
8084 target_to_host_sigset(set, target_set);
8085 unlock_user(target_set, arg5, 0);
8086 } else {
8087 set = NULL;
8088 }
8089
8090 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
8091 break;
8092 }
8093 #endif
8094 #if defined(TARGET_NR_epoll_wait)
8095 case TARGET_NR_epoll_wait:
8096 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
8097 break;
8098 #endif
8099 default:
8100 ret = -TARGET_ENOSYS;
8101 }
8102 if (!is_error(ret)) {
8103 int i;
8104 for (i = 0; i < ret; i++) {
8105 target_ep[i].events = tswap32(ep[i].events);
8106 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
8107 }
8108 }
8109 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
8110 break;
8111 }
8112 #endif
8113 #endif
8114 #ifdef TARGET_NR_prlimit64
8115 case TARGET_NR_prlimit64:
8116 {
8117 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
8118 struct target_rlimit64 *target_rnew, *target_rold;
8119 struct host_rlimit64 rnew, rold, *rnewp = 0;
8120 if (arg3) {
8121 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
8122 goto efault;
8123 }
8124 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
8125 rnew.rlim_max = tswap64(target_rnew->rlim_max);
8126 unlock_user_struct(target_rnew, arg3, 0);
8127 rnewp = &rnew;
8128 }
8129
8130 ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0));
8131 if (!is_error(ret) && arg4) {
8132 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
8133 goto efault;
8134 }
8135 target_rold->rlim_cur = tswap64(rold.rlim_cur);
8136 target_rold->rlim_max = tswap64(rold.rlim_max);
8137 unlock_user_struct(target_rold, arg4, 1);
8138 }
8139 break;
8140 }
8141 #endif
8142 default:
8143 unimplemented:
8144 gemu_log("qemu: Unsupported syscall: %d\n", num);
8145 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
8146 unimplemented_nowarn:
8147 #endif
8148 ret = -TARGET_ENOSYS;
8149 break;
8150 }
8151 fail:
8152 #ifdef DEBUG
8153 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
8154 #endif
8155 if(do_strace)
8156 print_syscall_ret(num, ret);
8157 return ret;
8158 efault:
8159 ret = -TARGET_EFAULT;
8160 goto fail;
8161 }
QEmu