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vnc: fix uint8_t comparisons with negative values
[qemu/ar7.git] / linux-user / syscall.c
blobcf8a4c387698a616a0e941187116be32a5aa4d5b
1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #define _ATFILE_SOURCE
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <elf.h>
25 #include <endian.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <time.h>
30 #include <limits.h>
31 #include <sys/types.h>
32 #include <sys/ipc.h>
33 #include <sys/msg.h>
34 #include <sys/wait.h>
35 #include <sys/time.h>
36 #include <sys/stat.h>
37 #include <sys/mount.h>
38 #include <sys/prctl.h>
39 #include <sys/resource.h>
40 #include <sys/mman.h>
41 #include <sys/swap.h>
42 #include <signal.h>
43 #include <sched.h>
44 #ifdef __ia64__
45 int __clone2(int (*fn)(void *), void *child_stack_base,
46 size_t stack_size, int flags, void *arg, ...);
47 #endif
48 #include <sys/socket.h>
49 #include <sys/un.h>
50 #include <sys/uio.h>
51 #include <sys/poll.h>
52 #include <sys/times.h>
53 #include <sys/shm.h>
54 #include <sys/sem.h>
55 #include <sys/statfs.h>
56 #include <utime.h>
57 #include <sys/sysinfo.h>
58 #include <sys/utsname.h>
59 //#include <sys/user.h>
60 #include <netinet/ip.h>
61 #include <netinet/tcp.h>
62 #include <qemu-common.h>
63 #ifdef TARGET_GPROF
64 #include <sys/gmon.h>
65 #endif
66 #ifdef CONFIG_EVENTFD
67 #include <sys/eventfd.h>
68 #endif
69 #ifdef CONFIG_EPOLL
70 #include <sys/epoll.h>
71 #endif
72
73 #define termios host_termios
74 #define winsize host_winsize
75 #define termio host_termio
76 #define sgttyb host_sgttyb /* same as target */
77 #define tchars host_tchars /* same as target */
78 #define ltchars host_ltchars /* same as target */
79
80 #include <linux/termios.h>
81 #include <linux/unistd.h>
82 #include <linux/utsname.h>
83 #include <linux/cdrom.h>
84 #include <linux/hdreg.h>
85 #include <linux/soundcard.h>
86 #include <linux/kd.h>
87 #include <linux/mtio.h>
88 #include <linux/fs.h>
89 #if defined(CONFIG_FIEMAP)
90 #include <linux/fiemap.h>
91 #endif
92 #include <linux/fb.h>
93 #include <linux/vt.h>
94 #include "linux_loop.h"
95 #include "cpu-uname.h"
96
97 #include "qemu.h"
98 #include "qemu-common.h"
99
100 #if defined(CONFIG_USE_NPTL)
101 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
102 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
103 #else
104 /* XXX: Hardcode the above values. */
105 #define CLONE_NPTL_FLAGS2 0
106 #endif
107
108 //#define DEBUG
109
110 //#include <linux/msdos_fs.h>
111 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
112 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
113
114
115 #undef _syscall0
116 #undef _syscall1
117 #undef _syscall2
118 #undef _syscall3
119 #undef _syscall4
120 #undef _syscall5
121 #undef _syscall6
122
123 #define _syscall0(type,name) \
124 static type name (void) \
125 { \
126 return syscall(__NR_##name); \
127 }
128
129 #define _syscall1(type,name,type1,arg1) \
130 static type name (type1 arg1) \
131 { \
132 return syscall(__NR_##name, arg1); \
133 }
134
135 #define _syscall2(type,name,type1,arg1,type2,arg2) \
136 static type name (type1 arg1,type2 arg2) \
137 { \
138 return syscall(__NR_##name, arg1, arg2); \
139 }
140
141 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
142 static type name (type1 arg1,type2 arg2,type3 arg3) \
143 { \
144 return syscall(__NR_##name, arg1, arg2, arg3); \
145 }
146
147 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
148 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
149 { \
150 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
151 }
152
153 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
154 type5,arg5) \
155 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
156 { \
157 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
158 }
159
160
161 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
162 type5,arg5,type6,arg6) \
163 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
164 type6 arg6) \
165 { \
166 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
167 }
168
169
170 #define __NR_sys_uname __NR_uname
171 #define __NR_sys_faccessat __NR_faccessat
172 #define __NR_sys_fchmodat __NR_fchmodat
173 #define __NR_sys_fchownat __NR_fchownat
174 #define __NR_sys_fstatat64 __NR_fstatat64
175 #define __NR_sys_futimesat __NR_futimesat
176 #define __NR_sys_getcwd1 __NR_getcwd
177 #define __NR_sys_getdents __NR_getdents
178 #define __NR_sys_getdents64 __NR_getdents64
179 #define __NR_sys_getpriority __NR_getpriority
180 #define __NR_sys_linkat __NR_linkat
181 #define __NR_sys_mkdirat __NR_mkdirat
182 #define __NR_sys_mknodat __NR_mknodat
183 #define __NR_sys_newfstatat __NR_newfstatat
184 #define __NR_sys_openat __NR_openat
185 #define __NR_sys_readlinkat __NR_readlinkat
186 #define __NR_sys_renameat __NR_renameat
187 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
188 #define __NR_sys_symlinkat __NR_symlinkat
189 #define __NR_sys_syslog __NR_syslog
190 #define __NR_sys_tgkill __NR_tgkill
191 #define __NR_sys_tkill __NR_tkill
192 #define __NR_sys_unlinkat __NR_unlinkat
193 #define __NR_sys_utimensat __NR_utimensat
194 #define __NR_sys_futex __NR_futex
195 #define __NR_sys_inotify_init __NR_inotify_init
196 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
197 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
198
199 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
200 #define __NR__llseek __NR_lseek
201 #endif
202
203 #ifdef __NR_gettid
204 _syscall0(int, gettid)
205 #else
206 /* This is a replacement for the host gettid() and must return a host
207 errno. */
208 static int gettid(void) {
209 return -ENOSYS;
210 }
211 #endif
212 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
213 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
214 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
215 #endif
216 _syscall2(int, sys_getpriority, int, which, int, who);
217 #if defined(TARGET_NR__llseek) && defined(__NR_llseek)
218 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
219 loff_t *, res, uint, wh);
220 #endif
221 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
222 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
223 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
224 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
225 #endif
226 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
227 _syscall2(int,sys_tkill,int,tid,int,sig)
228 #endif
229 #ifdef __NR_exit_group
230 _syscall1(int,exit_group,int,error_code)
231 #endif
232 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
233 _syscall1(int,set_tid_address,int *,tidptr)
234 #endif
235 #if defined(CONFIG_USE_NPTL)
236 #if defined(TARGET_NR_futex) && defined(__NR_futex)
237 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
238 const struct timespec *,timeout,int *,uaddr2,int,val3)
239 #endif
240 #endif
241 #define __NR_sys_sched_getaffinity __NR_sched_getaffinity
242 _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
243 unsigned long *, user_mask_ptr);
244 #define __NR_sys_sched_setaffinity __NR_sched_setaffinity
245 _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
246 unsigned long *, user_mask_ptr);
247
248 static bitmask_transtbl fcntl_flags_tbl[] = {
249 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
250 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
251 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
252 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
253 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
254 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
255 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
256 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
257 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
258 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
259 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
260 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
261 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
262 #if defined(O_DIRECT)
263 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
264 #endif
265 { 0, 0, 0, 0 }
266 };
267
268 #define COPY_UTSNAME_FIELD(dest, src) \
269 do { \
270 /* __NEW_UTS_LEN doesn't include terminating null */ \
271 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
272 (dest)[__NEW_UTS_LEN] = '\0'; \
273 } while (0)
274
275 static int sys_uname(struct new_utsname *buf)
276 {
277 struct utsname uts_buf;
278
279 if (uname(&uts_buf) < 0)
280 return (-1);
281
282 /*
283 * Just in case these have some differences, we
284 * translate utsname to new_utsname (which is the
285 * struct linux kernel uses).
286 */
287
288 bzero(buf, sizeof (*buf));
289 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
290 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
291 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
292 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
293 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
294 #ifdef _GNU_SOURCE
295 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
296 #endif
297 return (0);
298
299 #undef COPY_UTSNAME_FIELD
300 }
301
302 static int sys_getcwd1(char *buf, size_t size)
303 {
304 if (getcwd(buf, size) == NULL) {
305 /* getcwd() sets errno */
306 return (-1);
307 }
308 return strlen(buf)+1;
309 }
310
311 #ifdef CONFIG_ATFILE
312 /*
313 * Host system seems to have atfile syscall stubs available. We
314 * now enable them one by one as specified by target syscall_nr.h.
315 */
316
317 #ifdef TARGET_NR_faccessat
318 static int sys_faccessat(int dirfd, const char *pathname, int mode)
319 {
320 return (faccessat(dirfd, pathname, mode, 0));
321 }
322 #endif
323 #ifdef TARGET_NR_fchmodat
324 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode)
325 {
326 return (fchmodat(dirfd, pathname, mode, 0));
327 }
328 #endif
329 #if defined(TARGET_NR_fchownat) && defined(USE_UID16)
330 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner,
331 gid_t group, int flags)
332 {
333 return (fchownat(dirfd, pathname, owner, group, flags));
334 }
335 #endif
336 #ifdef __NR_fstatat64
337 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf,
338 int flags)
339 {
340 return (fstatat(dirfd, pathname, buf, flags));
341 }
342 #endif
343 #ifdef __NR_newfstatat
344 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf,
345 int flags)
346 {
347 return (fstatat(dirfd, pathname, buf, flags));
348 }
349 #endif
350 #ifdef TARGET_NR_futimesat
351 static int sys_futimesat(int dirfd, const char *pathname,
352 const struct timeval times[2])
353 {
354 return (futimesat(dirfd, pathname, times));
355 }
356 #endif
357 #ifdef TARGET_NR_linkat
358 static int sys_linkat(int olddirfd, const char *oldpath,
359 int newdirfd, const char *newpath, int flags)
360 {
361 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags));
362 }
363 #endif
364 #ifdef TARGET_NR_mkdirat
365 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode)
366 {
367 return (mkdirat(dirfd, pathname, mode));
368 }
369 #endif
370 #ifdef TARGET_NR_mknodat
371 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode,
372 dev_t dev)
373 {
374 return (mknodat(dirfd, pathname, mode, dev));
375 }
376 #endif
377 #ifdef TARGET_NR_openat
378 static int sys_openat(int dirfd, const char *pathname, int flags, ...)
379 {
380 /*
381 * open(2) has extra parameter 'mode' when called with
382 * flag O_CREAT.
383 */
384 if ((flags & O_CREAT) != 0) {
385 va_list ap;
386 mode_t mode;
387
388 /*
389 * Get the 'mode' parameter and translate it to
390 * host bits.
391 */
392 va_start(ap, flags);
393 mode = va_arg(ap, mode_t);
394 mode = target_to_host_bitmask(mode, fcntl_flags_tbl);
395 va_end(ap);
396
397 return (openat(dirfd, pathname, flags, mode));
398 }
399 return (openat(dirfd, pathname, flags));
400 }
401 #endif
402 #ifdef TARGET_NR_readlinkat
403 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz)
404 {
405 return (readlinkat(dirfd, pathname, buf, bufsiz));
406 }
407 #endif
408 #ifdef TARGET_NR_renameat
409 static int sys_renameat(int olddirfd, const char *oldpath,
410 int newdirfd, const char *newpath)
411 {
412 return (renameat(olddirfd, oldpath, newdirfd, newpath));
413 }
414 #endif
415 #ifdef TARGET_NR_symlinkat
416 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath)
417 {
418 return (symlinkat(oldpath, newdirfd, newpath));
419 }
420 #endif
421 #ifdef TARGET_NR_unlinkat
422 static int sys_unlinkat(int dirfd, const char *pathname, int flags)
423 {
424 return (unlinkat(dirfd, pathname, flags));
425 }
426 #endif
427 #else /* !CONFIG_ATFILE */
428
429 /*
430 * Try direct syscalls instead
431 */
432 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
433 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode)
434 #endif
435 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
436 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode)
437 #endif
438 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
439 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
440 uid_t,owner,gid_t,group,int,flags)
441 #endif
442 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
443 defined(__NR_fstatat64)
444 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
445 struct stat *,buf,int,flags)
446 #endif
447 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
448 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
449 const struct timeval *,times)
450 #endif
451 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \
452 defined(__NR_newfstatat)
453 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname,
454 struct stat *,buf,int,flags)
455 #endif
456 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
457 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
458 int,newdirfd,const char *,newpath,int,flags)
459 #endif
460 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
461 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
462 #endif
463 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
464 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
465 mode_t,mode,dev_t,dev)
466 #endif
467 #if defined(TARGET_NR_openat) && defined(__NR_openat)
468 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
469 #endif
470 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
471 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
472 char *,buf,size_t,bufsize)
473 #endif
474 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
475 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
476 int,newdirfd,const char *,newpath)
477 #endif
478 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
479 _syscall3(int,sys_symlinkat,const char *,oldpath,
480 int,newdirfd,const char *,newpath)
481 #endif
482 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
483 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
484 #endif
485
486 #endif /* CONFIG_ATFILE */
487
488 #ifdef CONFIG_UTIMENSAT
489 static int sys_utimensat(int dirfd, const char *pathname,
490 const struct timespec times[2], int flags)
491 {
492 if (pathname == NULL)
493 return futimens(dirfd, times);
494 else
495 return utimensat(dirfd, pathname, times, flags);
496 }
497 #else
498 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
499 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
500 const struct timespec *,tsp,int,flags)
501 #endif
502 #endif /* CONFIG_UTIMENSAT */
503
504 #ifdef CONFIG_INOTIFY
505 #include <sys/inotify.h>
506
507 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
508 static int sys_inotify_init(void)
509 {
510 return (inotify_init());
511 }
512 #endif
513 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
514 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
515 {
516 return (inotify_add_watch(fd, pathname, mask));
517 }
518 #endif
519 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
520 static int sys_inotify_rm_watch(int fd, int32_t wd)
521 {
522 return (inotify_rm_watch(fd, wd));
523 }
524 #endif
525 #ifdef CONFIG_INOTIFY1
526 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
527 static int sys_inotify_init1(int flags)
528 {
529 return (inotify_init1(flags));
530 }
531 #endif
532 #endif
533 #else
534 /* Userspace can usually survive runtime without inotify */
535 #undef TARGET_NR_inotify_init
536 #undef TARGET_NR_inotify_init1
537 #undef TARGET_NR_inotify_add_watch
538 #undef TARGET_NR_inotify_rm_watch
539 #endif /* CONFIG_INOTIFY */
540
541 #if defined(TARGET_NR_ppoll)
542 #ifndef __NR_ppoll
543 # define __NR_ppoll -1
544 #endif
545 #define __NR_sys_ppoll __NR_ppoll
546 _syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
547 struct timespec *, timeout, const __sigset_t *, sigmask,
548 size_t, sigsetsize)
549 #endif
550
551 extern int personality(int);
552 extern int flock(int, int);
553 extern int setfsuid(int);
554 extern int setfsgid(int);
555 extern int setgroups(int, gid_t *);
556
557 #define ERRNO_TABLE_SIZE 1200
558
559 /* target_to_host_errno_table[] is initialized from
560 * host_to_target_errno_table[] in syscall_init(). */
561 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
562 };
563
564 /*
565 * This list is the union of errno values overridden in asm-<arch>/errno.h
566 * minus the errnos that are not actually generic to all archs.
567 */
568 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
569 [EIDRM] = TARGET_EIDRM,
570 [ECHRNG] = TARGET_ECHRNG,
571 [EL2NSYNC] = TARGET_EL2NSYNC,
572 [EL3HLT] = TARGET_EL3HLT,
573 [EL3RST] = TARGET_EL3RST,
574 [ELNRNG] = TARGET_ELNRNG,
575 [EUNATCH] = TARGET_EUNATCH,
576 [ENOCSI] = TARGET_ENOCSI,
577 [EL2HLT] = TARGET_EL2HLT,
578 [EDEADLK] = TARGET_EDEADLK,
579 [ENOLCK] = TARGET_ENOLCK,
580 [EBADE] = TARGET_EBADE,
581 [EBADR] = TARGET_EBADR,
582 [EXFULL] = TARGET_EXFULL,
583 [ENOANO] = TARGET_ENOANO,
584 [EBADRQC] = TARGET_EBADRQC,
585 [EBADSLT] = TARGET_EBADSLT,
586 [EBFONT] = TARGET_EBFONT,
587 [ENOSTR] = TARGET_ENOSTR,
588 [ENODATA] = TARGET_ENODATA,
589 [ETIME] = TARGET_ETIME,
590 [ENOSR] = TARGET_ENOSR,
591 [ENONET] = TARGET_ENONET,
592 [ENOPKG] = TARGET_ENOPKG,
593 [EREMOTE] = TARGET_EREMOTE,
594 [ENOLINK] = TARGET_ENOLINK,
595 [EADV] = TARGET_EADV,
596 [ESRMNT] = TARGET_ESRMNT,
597 [ECOMM] = TARGET_ECOMM,
598 [EPROTO] = TARGET_EPROTO,
599 [EDOTDOT] = TARGET_EDOTDOT,
600 [EMULTIHOP] = TARGET_EMULTIHOP,
601 [EBADMSG] = TARGET_EBADMSG,
602 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
603 [EOVERFLOW] = TARGET_EOVERFLOW,
604 [ENOTUNIQ] = TARGET_ENOTUNIQ,
605 [EBADFD] = TARGET_EBADFD,
606 [EREMCHG] = TARGET_EREMCHG,
607 [ELIBACC] = TARGET_ELIBACC,
608 [ELIBBAD] = TARGET_ELIBBAD,
609 [ELIBSCN] = TARGET_ELIBSCN,
610 [ELIBMAX] = TARGET_ELIBMAX,
611 [ELIBEXEC] = TARGET_ELIBEXEC,
612 [EILSEQ] = TARGET_EILSEQ,
613 [ENOSYS] = TARGET_ENOSYS,
614 [ELOOP] = TARGET_ELOOP,
615 [ERESTART] = TARGET_ERESTART,
616 [ESTRPIPE] = TARGET_ESTRPIPE,
617 [ENOTEMPTY] = TARGET_ENOTEMPTY,
618 [EUSERS] = TARGET_EUSERS,
619 [ENOTSOCK] = TARGET_ENOTSOCK,
620 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
621 [EMSGSIZE] = TARGET_EMSGSIZE,
622 [EPROTOTYPE] = TARGET_EPROTOTYPE,
623 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
624 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
625 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
626 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
627 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
628 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
629 [EADDRINUSE] = TARGET_EADDRINUSE,
630 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
631 [ENETDOWN] = TARGET_ENETDOWN,
632 [ENETUNREACH] = TARGET_ENETUNREACH,
633 [ENETRESET] = TARGET_ENETRESET,
634 [ECONNABORTED] = TARGET_ECONNABORTED,
635 [ECONNRESET] = TARGET_ECONNRESET,
636 [ENOBUFS] = TARGET_ENOBUFS,
637 [EISCONN] = TARGET_EISCONN,
638 [ENOTCONN] = TARGET_ENOTCONN,
639 [EUCLEAN] = TARGET_EUCLEAN,
640 [ENOTNAM] = TARGET_ENOTNAM,
641 [ENAVAIL] = TARGET_ENAVAIL,
642 [EISNAM] = TARGET_EISNAM,
643 [EREMOTEIO] = TARGET_EREMOTEIO,
644 [ESHUTDOWN] = TARGET_ESHUTDOWN,
645 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
646 [ETIMEDOUT] = TARGET_ETIMEDOUT,
647 [ECONNREFUSED] = TARGET_ECONNREFUSED,
648 [EHOSTDOWN] = TARGET_EHOSTDOWN,
649 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
650 [EALREADY] = TARGET_EALREADY,
651 [EINPROGRESS] = TARGET_EINPROGRESS,
652 [ESTALE] = TARGET_ESTALE,
653 [ECANCELED] = TARGET_ECANCELED,
654 [ENOMEDIUM] = TARGET_ENOMEDIUM,
655 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
656 #ifdef ENOKEY
657 [ENOKEY] = TARGET_ENOKEY,
658 #endif
659 #ifdef EKEYEXPIRED
660 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
661 #endif
662 #ifdef EKEYREVOKED
663 [EKEYREVOKED] = TARGET_EKEYREVOKED,
664 #endif
665 #ifdef EKEYREJECTED
666 [EKEYREJECTED] = TARGET_EKEYREJECTED,
667 #endif
668 #ifdef EOWNERDEAD
669 [EOWNERDEAD] = TARGET_EOWNERDEAD,
670 #endif
671 #ifdef ENOTRECOVERABLE
672 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
673 #endif
674 };
675
676 static inline int host_to_target_errno(int err)
677 {
678 if(host_to_target_errno_table[err])
679 return host_to_target_errno_table[err];
680 return err;
681 }
682
683 static inline int target_to_host_errno(int err)
684 {
685 if (target_to_host_errno_table[err])
686 return target_to_host_errno_table[err];
687 return err;
688 }
689
690 static inline abi_long get_errno(abi_long ret)
691 {
692 if (ret == -1)
693 return -host_to_target_errno(errno);
694 else
695 return ret;
696 }
697
698 static inline int is_error(abi_long ret)
699 {
700 return (abi_ulong)ret >= (abi_ulong)(-4096);
701 }
702
703 char *target_strerror(int err)
704 {
705 return strerror(target_to_host_errno(err));
706 }
707
708 static abi_ulong target_brk;
709 static abi_ulong target_original_brk;
710
711 void target_set_brk(abi_ulong new_brk)
712 {
713 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
714 }
715
716 /* do_brk() must return target values and target errnos. */
717 abi_long do_brk(abi_ulong new_brk)
718 {
719 abi_ulong brk_page;
720 abi_long mapped_addr;
721 int new_alloc_size;
722
723 if (!new_brk)
724 return target_brk;
725 if (new_brk < target_original_brk)
726 return target_brk;
727
728 brk_page = HOST_PAGE_ALIGN(target_brk);
729
730 /* If the new brk is less than this, set it and we're done... */
731 if (new_brk < brk_page) {
732 target_brk = new_brk;
733 return target_brk;
734 }
735
736 /* We need to allocate more memory after the brk... */
737 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
738 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
739 PROT_READ|PROT_WRITE,
740 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
741
742 #if defined(TARGET_ALPHA)
743 /* We (partially) emulate OSF/1 on Alpha, which requires we
744 return a proper errno, not an unchanged brk value. */
745 if (is_error(mapped_addr)) {
746 return -TARGET_ENOMEM;
747 }
748 #endif
749
750 if (!is_error(mapped_addr)) {
751 target_brk = new_brk;
752 }
753 return target_brk;
754 }
755
756 static inline abi_long copy_from_user_fdset(fd_set *fds,
757 abi_ulong target_fds_addr,
758 int n)
759 {
760 int i, nw, j, k;
761 abi_ulong b, *target_fds;
762
763 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
764 if (!(target_fds = lock_user(VERIFY_READ,
765 target_fds_addr,
766 sizeof(abi_ulong) * nw,
767 1)))
768 return -TARGET_EFAULT;
769
770 FD_ZERO(fds);
771 k = 0;
772 for (i = 0; i < nw; i++) {
773 /* grab the abi_ulong */
774 __get_user(b, &target_fds[i]);
775 for (j = 0; j < TARGET_ABI_BITS; j++) {
776 /* check the bit inside the abi_ulong */
777 if ((b >> j) & 1)
778 FD_SET(k, fds);
779 k++;
780 }
781 }
782
783 unlock_user(target_fds, target_fds_addr, 0);
784
785 return 0;
786 }
787
788 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
789 const fd_set *fds,
790 int n)
791 {
792 int i, nw, j, k;
793 abi_long v;
794 abi_ulong *target_fds;
795
796 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
797 if (!(target_fds = lock_user(VERIFY_WRITE,
798 target_fds_addr,
799 sizeof(abi_ulong) * nw,
800 0)))
801 return -TARGET_EFAULT;
802
803 k = 0;
804 for (i = 0; i < nw; i++) {
805 v = 0;
806 for (j = 0; j < TARGET_ABI_BITS; j++) {
807 v |= ((FD_ISSET(k, fds) != 0) << j);
808 k++;
809 }
810 __put_user(v, &target_fds[i]);
811 }
812
813 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
814
815 return 0;
816 }
817
818 #if defined(__alpha__)
819 #define HOST_HZ 1024
820 #else
821 #define HOST_HZ 100
822 #endif
823
824 static inline abi_long host_to_target_clock_t(long ticks)
825 {
826 #if HOST_HZ == TARGET_HZ
827 return ticks;
828 #else
829 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
830 #endif
831 }
832
833 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
834 const struct rusage *rusage)
835 {
836 struct target_rusage *target_rusage;
837
838 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
839 return -TARGET_EFAULT;
840 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
841 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
842 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
843 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
844 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
845 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
846 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
847 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
848 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
849 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
850 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
851 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
852 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
853 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
854 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
855 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
856 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
857 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
858 unlock_user_struct(target_rusage, target_addr, 1);
859
860 return 0;
861 }
862
863 static inline rlim_t target_to_host_rlim(target_ulong target_rlim)
864 {
865 if (target_rlim == TARGET_RLIM_INFINITY)
866 return RLIM_INFINITY;
867 else
868 return tswapl(target_rlim);
869 }
870
871 static inline target_ulong host_to_target_rlim(rlim_t rlim)
872 {
873 if (rlim == RLIM_INFINITY || rlim != (target_long)rlim)
874 return TARGET_RLIM_INFINITY;
875 else
876 return tswapl(rlim);
877 }
878
879 static inline abi_long copy_from_user_timeval(struct timeval *tv,
880 abi_ulong target_tv_addr)
881 {
882 struct target_timeval *target_tv;
883
884 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
885 return -TARGET_EFAULT;
886
887 __get_user(tv->tv_sec, &target_tv->tv_sec);
888 __get_user(tv->tv_usec, &target_tv->tv_usec);
889
890 unlock_user_struct(target_tv, target_tv_addr, 0);
891
892 return 0;
893 }
894
895 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
896 const struct timeval *tv)
897 {
898 struct target_timeval *target_tv;
899
900 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
901 return -TARGET_EFAULT;
902
903 __put_user(tv->tv_sec, &target_tv->tv_sec);
904 __put_user(tv->tv_usec, &target_tv->tv_usec);
905
906 unlock_user_struct(target_tv, target_tv_addr, 1);
907
908 return 0;
909 }
910
911 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
912 #include <mqueue.h>
913
914 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
915 abi_ulong target_mq_attr_addr)
916 {
917 struct target_mq_attr *target_mq_attr;
918
919 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
920 target_mq_attr_addr, 1))
921 return -TARGET_EFAULT;
922
923 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
924 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
925 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
926 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
927
928 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
929
930 return 0;
931 }
932
933 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
934 const struct mq_attr *attr)
935 {
936 struct target_mq_attr *target_mq_attr;
937
938 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
939 target_mq_attr_addr, 0))
940 return -TARGET_EFAULT;
941
942 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
943 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
944 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
945 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
946
947 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
948
949 return 0;
950 }
951 #endif
952
953 /* do_select() must return target values and target errnos. */
954 static abi_long do_select(int n,
955 abi_ulong rfd_addr, abi_ulong wfd_addr,
956 abi_ulong efd_addr, abi_ulong target_tv_addr)
957 {
958 fd_set rfds, wfds, efds;
959 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
960 struct timeval tv, *tv_ptr;
961 abi_long ret;
962
963 if (rfd_addr) {
964 if (copy_from_user_fdset(&rfds, rfd_addr, n))
965 return -TARGET_EFAULT;
966 rfds_ptr = &rfds;
967 } else {
968 rfds_ptr = NULL;
969 }
970 if (wfd_addr) {
971 if (copy_from_user_fdset(&wfds, wfd_addr, n))
972 return -TARGET_EFAULT;
973 wfds_ptr = &wfds;
974 } else {
975 wfds_ptr = NULL;
976 }
977 if (efd_addr) {
978 if (copy_from_user_fdset(&efds, efd_addr, n))
979 return -TARGET_EFAULT;
980 efds_ptr = &efds;
981 } else {
982 efds_ptr = NULL;
983 }
984
985 if (target_tv_addr) {
986 if (copy_from_user_timeval(&tv, target_tv_addr))
987 return -TARGET_EFAULT;
988 tv_ptr = &tv;
989 } else {
990 tv_ptr = NULL;
991 }
992
993 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
994
995 if (!is_error(ret)) {
996 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
997 return -TARGET_EFAULT;
998 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
999 return -TARGET_EFAULT;
1000 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1001 return -TARGET_EFAULT;
1002
1003 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
1004 return -TARGET_EFAULT;
1005 }
1006
1007 return ret;
1008 }
1009
1010 static abi_long do_pipe2(int host_pipe[], int flags)
1011 {
1012 #ifdef CONFIG_PIPE2
1013 return pipe2(host_pipe, flags);
1014 #else
1015 return -ENOSYS;
1016 #endif
1017 }
1018
1019 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1020 int flags, int is_pipe2)
1021 {
1022 int host_pipe[2];
1023 abi_long ret;
1024 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1025
1026 if (is_error(ret))
1027 return get_errno(ret);
1028
1029 /* Several targets have special calling conventions for the original
1030 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1031 if (!is_pipe2) {
1032 #if defined(TARGET_ALPHA)
1033 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1034 return host_pipe[0];
1035 #elif defined(TARGET_MIPS)
1036 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1037 return host_pipe[0];
1038 #elif defined(TARGET_SH4)
1039 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1040 return host_pipe[0];
1041 #endif
1042 }
1043
1044 if (put_user_s32(host_pipe[0], pipedes)
1045 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1046 return -TARGET_EFAULT;
1047 return get_errno(ret);
1048 }
1049
1050 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1051 abi_ulong target_addr,
1052 socklen_t len)
1053 {
1054 struct target_ip_mreqn *target_smreqn;
1055
1056 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1057 if (!target_smreqn)
1058 return -TARGET_EFAULT;
1059 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1060 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1061 if (len == sizeof(struct target_ip_mreqn))
1062 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex);
1063 unlock_user(target_smreqn, target_addr, 0);
1064
1065 return 0;
1066 }
1067
1068 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1069 abi_ulong target_addr,
1070 socklen_t len)
1071 {
1072 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1073 sa_family_t sa_family;
1074 struct target_sockaddr *target_saddr;
1075
1076 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1077 if (!target_saddr)
1078 return -TARGET_EFAULT;
1079
1080 sa_family = tswap16(target_saddr->sa_family);
1081
1082 /* Oops. The caller might send a incomplete sun_path; sun_path
1083 * must be terminated by \0 (see the manual page), but
1084 * unfortunately it is quite common to specify sockaddr_un
1085 * length as "strlen(x->sun_path)" while it should be
1086 * "strlen(...) + 1". We'll fix that here if needed.
1087 * Linux kernel has a similar feature.
1088 */
1089
1090 if (sa_family == AF_UNIX) {
1091 if (len < unix_maxlen && len > 0) {
1092 char *cp = (char*)target_saddr;
1093
1094 if ( cp[len-1] && !cp[len] )
1095 len++;
1096 }
1097 if (len > unix_maxlen)
1098 len = unix_maxlen;
1099 }
1100
1101 memcpy(addr, target_saddr, len);
1102 addr->sa_family = sa_family;
1103 unlock_user(target_saddr, target_addr, 0);
1104
1105 return 0;
1106 }
1107
1108 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1109 struct sockaddr *addr,
1110 socklen_t len)
1111 {
1112 struct target_sockaddr *target_saddr;
1113
1114 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1115 if (!target_saddr)
1116 return -TARGET_EFAULT;
1117 memcpy(target_saddr, addr, len);
1118 target_saddr->sa_family = tswap16(addr->sa_family);
1119 unlock_user(target_saddr, target_addr, len);
1120
1121 return 0;
1122 }
1123
1124 /* ??? Should this also swap msgh->name? */
1125 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1126 struct target_msghdr *target_msgh)
1127 {
1128 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1129 abi_long msg_controllen;
1130 abi_ulong target_cmsg_addr;
1131 struct target_cmsghdr *target_cmsg;
1132 socklen_t space = 0;
1133
1134 msg_controllen = tswapl(target_msgh->msg_controllen);
1135 if (msg_controllen < sizeof (struct target_cmsghdr))
1136 goto the_end;
1137 target_cmsg_addr = tswapl(target_msgh->msg_control);
1138 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1139 if (!target_cmsg)
1140 return -TARGET_EFAULT;
1141
1142 while (cmsg && target_cmsg) {
1143 void *data = CMSG_DATA(cmsg);
1144 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1145
1146 int len = tswapl(target_cmsg->cmsg_len)
1147 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1148
1149 space += CMSG_SPACE(len);
1150 if (space > msgh->msg_controllen) {
1151 space -= CMSG_SPACE(len);
1152 gemu_log("Host cmsg overflow\n");
1153 break;
1154 }
1155
1156 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1157 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1158 cmsg->cmsg_len = CMSG_LEN(len);
1159
1160 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1161 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1162 memcpy(data, target_data, len);
1163 } else {
1164 int *fd = (int *)data;
1165 int *target_fd = (int *)target_data;
1166 int i, numfds = len / sizeof(int);
1167
1168 for (i = 0; i < numfds; i++)
1169 fd[i] = tswap32(target_fd[i]);
1170 }
1171
1172 cmsg = CMSG_NXTHDR(msgh, cmsg);
1173 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1174 }
1175 unlock_user(target_cmsg, target_cmsg_addr, 0);
1176 the_end:
1177 msgh->msg_controllen = space;
1178 return 0;
1179 }
1180
1181 /* ??? Should this also swap msgh->name? */
1182 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1183 struct msghdr *msgh)
1184 {
1185 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1186 abi_long msg_controllen;
1187 abi_ulong target_cmsg_addr;
1188 struct target_cmsghdr *target_cmsg;
1189 socklen_t space = 0;
1190
1191 msg_controllen = tswapl(target_msgh->msg_controllen);
1192 if (msg_controllen < sizeof (struct target_cmsghdr))
1193 goto the_end;
1194 target_cmsg_addr = tswapl(target_msgh->msg_control);
1195 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1196 if (!target_cmsg)
1197 return -TARGET_EFAULT;
1198
1199 while (cmsg && target_cmsg) {
1200 void *data = CMSG_DATA(cmsg);
1201 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1202
1203 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1204
1205 space += TARGET_CMSG_SPACE(len);
1206 if (space > msg_controllen) {
1207 space -= TARGET_CMSG_SPACE(len);
1208 gemu_log("Target cmsg overflow\n");
1209 break;
1210 }
1211
1212 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1213 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1214 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
1215
1216 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1217 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1218 memcpy(target_data, data, len);
1219 } else {
1220 int *fd = (int *)data;
1221 int *target_fd = (int *)target_data;
1222 int i, numfds = len / sizeof(int);
1223
1224 for (i = 0; i < numfds; i++)
1225 target_fd[i] = tswap32(fd[i]);
1226 }
1227
1228 cmsg = CMSG_NXTHDR(msgh, cmsg);
1229 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1230 }
1231 unlock_user(target_cmsg, target_cmsg_addr, space);
1232 the_end:
1233 target_msgh->msg_controllen = tswapl(space);
1234 return 0;
1235 }
1236
1237 /* do_setsockopt() Must return target values and target errnos. */
1238 static abi_long do_setsockopt(int sockfd, int level, int optname,
1239 abi_ulong optval_addr, socklen_t optlen)
1240 {
1241 abi_long ret;
1242 int val;
1243 struct ip_mreqn *ip_mreq;
1244 struct ip_mreq_source *ip_mreq_source;
1245
1246 switch(level) {
1247 case SOL_TCP:
1248 /* TCP options all take an 'int' value. */
1249 if (optlen < sizeof(uint32_t))
1250 return -TARGET_EINVAL;
1251
1252 if (get_user_u32(val, optval_addr))
1253 return -TARGET_EFAULT;
1254 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1255 break;
1256 case SOL_IP:
1257 switch(optname) {
1258 case IP_TOS:
1259 case IP_TTL:
1260 case IP_HDRINCL:
1261 case IP_ROUTER_ALERT:
1262 case IP_RECVOPTS:
1263 case IP_RETOPTS:
1264 case IP_PKTINFO:
1265 case IP_MTU_DISCOVER:
1266 case IP_RECVERR:
1267 case IP_RECVTOS:
1268 #ifdef IP_FREEBIND
1269 case IP_FREEBIND:
1270 #endif
1271 case IP_MULTICAST_TTL:
1272 case IP_MULTICAST_LOOP:
1273 val = 0;
1274 if (optlen >= sizeof(uint32_t)) {
1275 if (get_user_u32(val, optval_addr))
1276 return -TARGET_EFAULT;
1277 } else if (optlen >= 1) {
1278 if (get_user_u8(val, optval_addr))
1279 return -TARGET_EFAULT;
1280 }
1281 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1282 break;
1283 case IP_ADD_MEMBERSHIP:
1284 case IP_DROP_MEMBERSHIP:
1285 if (optlen < sizeof (struct target_ip_mreq) ||
1286 optlen > sizeof (struct target_ip_mreqn))
1287 return -TARGET_EINVAL;
1288
1289 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1290 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1291 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1292 break;
1293
1294 case IP_BLOCK_SOURCE:
1295 case IP_UNBLOCK_SOURCE:
1296 case IP_ADD_SOURCE_MEMBERSHIP:
1297 case IP_DROP_SOURCE_MEMBERSHIP:
1298 if (optlen != sizeof (struct target_ip_mreq_source))
1299 return -TARGET_EINVAL;
1300
1301 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1302 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1303 unlock_user (ip_mreq_source, optval_addr, 0);
1304 break;
1305
1306 default:
1307 goto unimplemented;
1308 }
1309 break;
1310 case TARGET_SOL_SOCKET:
1311 switch (optname) {
1312 /* Options with 'int' argument. */
1313 case TARGET_SO_DEBUG:
1314 optname = SO_DEBUG;
1315 break;
1316 case TARGET_SO_REUSEADDR:
1317 optname = SO_REUSEADDR;
1318 break;
1319 case TARGET_SO_TYPE:
1320 optname = SO_TYPE;
1321 break;
1322 case TARGET_SO_ERROR:
1323 optname = SO_ERROR;
1324 break;
1325 case TARGET_SO_DONTROUTE:
1326 optname = SO_DONTROUTE;
1327 break;
1328 case TARGET_SO_BROADCAST:
1329 optname = SO_BROADCAST;
1330 break;
1331 case TARGET_SO_SNDBUF:
1332 optname = SO_SNDBUF;
1333 break;
1334 case TARGET_SO_RCVBUF:
1335 optname = SO_RCVBUF;
1336 break;
1337 case TARGET_SO_KEEPALIVE:
1338 optname = SO_KEEPALIVE;
1339 break;
1340 case TARGET_SO_OOBINLINE:
1341 optname = SO_OOBINLINE;
1342 break;
1343 case TARGET_SO_NO_CHECK:
1344 optname = SO_NO_CHECK;
1345 break;
1346 case TARGET_SO_PRIORITY:
1347 optname = SO_PRIORITY;
1348 break;
1349 #ifdef SO_BSDCOMPAT
1350 case TARGET_SO_BSDCOMPAT:
1351 optname = SO_BSDCOMPAT;
1352 break;
1353 #endif
1354 case TARGET_SO_PASSCRED:
1355 optname = SO_PASSCRED;
1356 break;
1357 case TARGET_SO_TIMESTAMP:
1358 optname = SO_TIMESTAMP;
1359 break;
1360 case TARGET_SO_RCVLOWAT:
1361 optname = SO_RCVLOWAT;
1362 break;
1363 case TARGET_SO_RCVTIMEO:
1364 optname = SO_RCVTIMEO;
1365 break;
1366 case TARGET_SO_SNDTIMEO:
1367 optname = SO_SNDTIMEO;
1368 break;
1369 break;
1370 default:
1371 goto unimplemented;
1372 }
1373 if (optlen < sizeof(uint32_t))
1374 return -TARGET_EINVAL;
1375
1376 if (get_user_u32(val, optval_addr))
1377 return -TARGET_EFAULT;
1378 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1379 break;
1380 default:
1381 unimplemented:
1382 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
1383 ret = -TARGET_ENOPROTOOPT;
1384 }
1385 return ret;
1386 }
1387
1388 /* do_getsockopt() Must return target values and target errnos. */
1389 static abi_long do_getsockopt(int sockfd, int level, int optname,
1390 abi_ulong optval_addr, abi_ulong optlen)
1391 {
1392 abi_long ret;
1393 int len, val;
1394 socklen_t lv;
1395
1396 switch(level) {
1397 case TARGET_SOL_SOCKET:
1398 level = SOL_SOCKET;
1399 switch (optname) {
1400 /* These don't just return a single integer */
1401 case TARGET_SO_LINGER:
1402 case TARGET_SO_RCVTIMEO:
1403 case TARGET_SO_SNDTIMEO:
1404 case TARGET_SO_PEERCRED:
1405 case TARGET_SO_PEERNAME:
1406 goto unimplemented;
1407 /* Options with 'int' argument. */
1408 case TARGET_SO_DEBUG:
1409 optname = SO_DEBUG;
1410 goto int_case;
1411 case TARGET_SO_REUSEADDR:
1412 optname = SO_REUSEADDR;
1413 goto int_case;
1414 case TARGET_SO_TYPE:
1415 optname = SO_TYPE;
1416 goto int_case;
1417 case TARGET_SO_ERROR:
1418 optname = SO_ERROR;
1419 goto int_case;
1420 case TARGET_SO_DONTROUTE:
1421 optname = SO_DONTROUTE;
1422 goto int_case;
1423 case TARGET_SO_BROADCAST:
1424 optname = SO_BROADCAST;
1425 goto int_case;
1426 case TARGET_SO_SNDBUF:
1427 optname = SO_SNDBUF;
1428 goto int_case;
1429 case TARGET_SO_RCVBUF:
1430 optname = SO_RCVBUF;
1431 goto int_case;
1432 case TARGET_SO_KEEPALIVE:
1433 optname = SO_KEEPALIVE;
1434 goto int_case;
1435 case TARGET_SO_OOBINLINE:
1436 optname = SO_OOBINLINE;
1437 goto int_case;
1438 case TARGET_SO_NO_CHECK:
1439 optname = SO_NO_CHECK;
1440 goto int_case;
1441 case TARGET_SO_PRIORITY:
1442 optname = SO_PRIORITY;
1443 goto int_case;
1444 #ifdef SO_BSDCOMPAT
1445 case TARGET_SO_BSDCOMPAT:
1446 optname = SO_BSDCOMPAT;
1447 goto int_case;
1448 #endif
1449 case TARGET_SO_PASSCRED:
1450 optname = SO_PASSCRED;
1451 goto int_case;
1452 case TARGET_SO_TIMESTAMP:
1453 optname = SO_TIMESTAMP;
1454 goto int_case;
1455 case TARGET_SO_RCVLOWAT:
1456 optname = SO_RCVLOWAT;
1457 goto int_case;
1458 default:
1459 goto int_case;
1460 }
1461 break;
1462 case SOL_TCP:
1463 /* TCP options all take an 'int' value. */
1464 int_case:
1465 if (get_user_u32(len, optlen))
1466 return -TARGET_EFAULT;
1467 if (len < 0)
1468 return -TARGET_EINVAL;
1469 lv = sizeof(lv);
1470 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1471 if (ret < 0)
1472 return ret;
1473 if (len > lv)
1474 len = lv;
1475 if (len == 4) {
1476 if (put_user_u32(val, optval_addr))
1477 return -TARGET_EFAULT;
1478 } else {
1479 if (put_user_u8(val, optval_addr))
1480 return -TARGET_EFAULT;
1481 }
1482 if (put_user_u32(len, optlen))
1483 return -TARGET_EFAULT;
1484 break;
1485 case SOL_IP:
1486 switch(optname) {
1487 case IP_TOS:
1488 case IP_TTL:
1489 case IP_HDRINCL:
1490 case IP_ROUTER_ALERT:
1491 case IP_RECVOPTS:
1492 case IP_RETOPTS:
1493 case IP_PKTINFO:
1494 case IP_MTU_DISCOVER:
1495 case IP_RECVERR:
1496 case IP_RECVTOS:
1497 #ifdef IP_FREEBIND
1498 case IP_FREEBIND:
1499 #endif
1500 case IP_MULTICAST_TTL:
1501 case IP_MULTICAST_LOOP:
1502 if (get_user_u32(len, optlen))
1503 return -TARGET_EFAULT;
1504 if (len < 0)
1505 return -TARGET_EINVAL;
1506 lv = sizeof(lv);
1507 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1508 if (ret < 0)
1509 return ret;
1510 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1511 len = 1;
1512 if (put_user_u32(len, optlen)
1513 || put_user_u8(val, optval_addr))
1514 return -TARGET_EFAULT;
1515 } else {
1516 if (len > sizeof(int))
1517 len = sizeof(int);
1518 if (put_user_u32(len, optlen)
1519 || put_user_u32(val, optval_addr))
1520 return -TARGET_EFAULT;
1521 }
1522 break;
1523 default:
1524 ret = -TARGET_ENOPROTOOPT;
1525 break;
1526 }
1527 break;
1528 default:
1529 unimplemented:
1530 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1531 level, optname);
1532 ret = -TARGET_EOPNOTSUPP;
1533 break;
1534 }
1535 return ret;
1536 }
1537
1538 /* FIXME
1539 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1540 * other lock functions have a return code of 0 for failure.
1541 */
1542 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1543 int count, int copy)
1544 {
1545 struct target_iovec *target_vec;
1546 abi_ulong base;
1547 int i;
1548
1549 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1550 if (!target_vec)
1551 return -TARGET_EFAULT;
1552 for(i = 0;i < count; i++) {
1553 base = tswapl(target_vec[i].iov_base);
1554 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1555 if (vec[i].iov_len != 0) {
1556 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1557 /* Don't check lock_user return value. We must call writev even
1558 if a element has invalid base address. */
1559 } else {
1560 /* zero length pointer is ignored */
1561 vec[i].iov_base = NULL;
1562 }
1563 }
1564 unlock_user (target_vec, target_addr, 0);
1565 return 0;
1566 }
1567
1568 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1569 int count, int copy)
1570 {
1571 struct target_iovec *target_vec;
1572 abi_ulong base;
1573 int i;
1574
1575 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1576 if (!target_vec)
1577 return -TARGET_EFAULT;
1578 for(i = 0;i < count; i++) {
1579 if (target_vec[i].iov_base) {
1580 base = tswapl(target_vec[i].iov_base);
1581 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1582 }
1583 }
1584 unlock_user (target_vec, target_addr, 0);
1585
1586 return 0;
1587 }
1588
1589 /* do_socket() Must return target values and target errnos. */
1590 static abi_long do_socket(int domain, int type, int protocol)
1591 {
1592 #if defined(TARGET_MIPS)
1593 switch(type) {
1594 case TARGET_SOCK_DGRAM:
1595 type = SOCK_DGRAM;
1596 break;
1597 case TARGET_SOCK_STREAM:
1598 type = SOCK_STREAM;
1599 break;
1600 case TARGET_SOCK_RAW:
1601 type = SOCK_RAW;
1602 break;
1603 case TARGET_SOCK_RDM:
1604 type = SOCK_RDM;
1605 break;
1606 case TARGET_SOCK_SEQPACKET:
1607 type = SOCK_SEQPACKET;
1608 break;
1609 case TARGET_SOCK_PACKET:
1610 type = SOCK_PACKET;
1611 break;
1612 }
1613 #endif
1614 if (domain == PF_NETLINK)
1615 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1616 return get_errno(socket(domain, type, protocol));
1617 }
1618
1619 /* do_bind() Must return target values and target errnos. */
1620 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1621 socklen_t addrlen)
1622 {
1623 void *addr;
1624 abi_long ret;
1625
1626 if ((int)addrlen < 0) {
1627 return -TARGET_EINVAL;
1628 }
1629
1630 addr = alloca(addrlen+1);
1631
1632 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1633 if (ret)
1634 return ret;
1635
1636 return get_errno(bind(sockfd, addr, addrlen));
1637 }
1638
1639 /* do_connect() Must return target values and target errnos. */
1640 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1641 socklen_t addrlen)
1642 {
1643 void *addr;
1644 abi_long ret;
1645
1646 if ((int)addrlen < 0) {
1647 return -TARGET_EINVAL;
1648 }
1649
1650 addr = alloca(addrlen);
1651
1652 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1653 if (ret)
1654 return ret;
1655
1656 return get_errno(connect(sockfd, addr, addrlen));
1657 }
1658
1659 /* do_sendrecvmsg() Must return target values and target errnos. */
1660 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1661 int flags, int send)
1662 {
1663 abi_long ret, len;
1664 struct target_msghdr *msgp;
1665 struct msghdr msg;
1666 int count;
1667 struct iovec *vec;
1668 abi_ulong target_vec;
1669
1670 /* FIXME */
1671 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1672 msgp,
1673 target_msg,
1674 send ? 1 : 0))
1675 return -TARGET_EFAULT;
1676 if (msgp->msg_name) {
1677 msg.msg_namelen = tswap32(msgp->msg_namelen);
1678 msg.msg_name = alloca(msg.msg_namelen);
1679 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1680 msg.msg_namelen);
1681 if (ret) {
1682 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1683 return ret;
1684 }
1685 } else {
1686 msg.msg_name = NULL;
1687 msg.msg_namelen = 0;
1688 }
1689 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1690 msg.msg_control = alloca(msg.msg_controllen);
1691 msg.msg_flags = tswap32(msgp->msg_flags);
1692
1693 count = tswapl(msgp->msg_iovlen);
1694 vec = alloca(count * sizeof(struct iovec));
1695 target_vec = tswapl(msgp->msg_iov);
1696 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1697 msg.msg_iovlen = count;
1698 msg.msg_iov = vec;
1699
1700 if (send) {
1701 ret = target_to_host_cmsg(&msg, msgp);
1702 if (ret == 0)
1703 ret = get_errno(sendmsg(fd, &msg, flags));
1704 } else {
1705 ret = get_errno(recvmsg(fd, &msg, flags));
1706 if (!is_error(ret)) {
1707 len = ret;
1708 ret = host_to_target_cmsg(msgp, &msg);
1709 if (!is_error(ret))
1710 ret = len;
1711 }
1712 }
1713 unlock_iovec(vec, target_vec, count, !send);
1714 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1715 return ret;
1716 }
1717
1718 /* do_accept() Must return target values and target errnos. */
1719 static abi_long do_accept(int fd, abi_ulong target_addr,
1720 abi_ulong target_addrlen_addr)
1721 {
1722 socklen_t addrlen;
1723 void *addr;
1724 abi_long ret;
1725
1726 if (target_addr == 0)
1727 return get_errno(accept(fd, NULL, NULL));
1728
1729 /* linux returns EINVAL if addrlen pointer is invalid */
1730 if (get_user_u32(addrlen, target_addrlen_addr))
1731 return -TARGET_EINVAL;
1732
1733 if ((int)addrlen < 0) {
1734 return -TARGET_EINVAL;
1735 }
1736
1737 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1738 return -TARGET_EINVAL;
1739
1740 addr = alloca(addrlen);
1741
1742 ret = get_errno(accept(fd, addr, &addrlen));
1743 if (!is_error(ret)) {
1744 host_to_target_sockaddr(target_addr, addr, addrlen);
1745 if (put_user_u32(addrlen, target_addrlen_addr))
1746 ret = -TARGET_EFAULT;
1747 }
1748 return ret;
1749 }
1750
1751 /* do_getpeername() Must return target values and target errnos. */
1752 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1753 abi_ulong target_addrlen_addr)
1754 {
1755 socklen_t addrlen;
1756 void *addr;
1757 abi_long ret;
1758
1759 if (get_user_u32(addrlen, target_addrlen_addr))
1760 return -TARGET_EFAULT;
1761
1762 if ((int)addrlen < 0) {
1763 return -TARGET_EINVAL;
1764 }
1765
1766 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1767 return -TARGET_EFAULT;
1768
1769 addr = alloca(addrlen);
1770
1771 ret = get_errno(getpeername(fd, addr, &addrlen));
1772 if (!is_error(ret)) {
1773 host_to_target_sockaddr(target_addr, addr, addrlen);
1774 if (put_user_u32(addrlen, target_addrlen_addr))
1775 ret = -TARGET_EFAULT;
1776 }
1777 return ret;
1778 }
1779
1780 /* do_getsockname() Must return target values and target errnos. */
1781 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1782 abi_ulong target_addrlen_addr)
1783 {
1784 socklen_t addrlen;
1785 void *addr;
1786 abi_long ret;
1787
1788 if (get_user_u32(addrlen, target_addrlen_addr))
1789 return -TARGET_EFAULT;
1790
1791 if ((int)addrlen < 0) {
1792 return -TARGET_EINVAL;
1793 }
1794
1795 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1796 return -TARGET_EFAULT;
1797
1798 addr = alloca(addrlen);
1799
1800 ret = get_errno(getsockname(fd, addr, &addrlen));
1801 if (!is_error(ret)) {
1802 host_to_target_sockaddr(target_addr, addr, addrlen);
1803 if (put_user_u32(addrlen, target_addrlen_addr))
1804 ret = -TARGET_EFAULT;
1805 }
1806 return ret;
1807 }
1808
1809 /* do_socketpair() Must return target values and target errnos. */
1810 static abi_long do_socketpair(int domain, int type, int protocol,
1811 abi_ulong target_tab_addr)
1812 {
1813 int tab[2];
1814 abi_long ret;
1815
1816 ret = get_errno(socketpair(domain, type, protocol, tab));
1817 if (!is_error(ret)) {
1818 if (put_user_s32(tab[0], target_tab_addr)
1819 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1820 ret = -TARGET_EFAULT;
1821 }
1822 return ret;
1823 }
1824
1825 /* do_sendto() Must return target values and target errnos. */
1826 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1827 abi_ulong target_addr, socklen_t addrlen)
1828 {
1829 void *addr;
1830 void *host_msg;
1831 abi_long ret;
1832
1833 if ((int)addrlen < 0) {
1834 return -TARGET_EINVAL;
1835 }
1836
1837 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1838 if (!host_msg)
1839 return -TARGET_EFAULT;
1840 if (target_addr) {
1841 addr = alloca(addrlen);
1842 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1843 if (ret) {
1844 unlock_user(host_msg, msg, 0);
1845 return ret;
1846 }
1847 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1848 } else {
1849 ret = get_errno(send(fd, host_msg, len, flags));
1850 }
1851 unlock_user(host_msg, msg, 0);
1852 return ret;
1853 }
1854
1855 /* do_recvfrom() Must return target values and target errnos. */
1856 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1857 abi_ulong target_addr,
1858 abi_ulong target_addrlen)
1859 {
1860 socklen_t addrlen;
1861 void *addr;
1862 void *host_msg;
1863 abi_long ret;
1864
1865 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1866 if (!host_msg)
1867 return -TARGET_EFAULT;
1868 if (target_addr) {
1869 if (get_user_u32(addrlen, target_addrlen)) {
1870 ret = -TARGET_EFAULT;
1871 goto fail;
1872 }
1873 if ((int)addrlen < 0) {
1874 ret = -TARGET_EINVAL;
1875 goto fail;
1876 }
1877 addr = alloca(addrlen);
1878 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1879 } else {
1880 addr = NULL; /* To keep compiler quiet. */
1881 ret = get_errno(recv(fd, host_msg, len, flags));
1882 }
1883 if (!is_error(ret)) {
1884 if (target_addr) {
1885 host_to_target_sockaddr(target_addr, addr, addrlen);
1886 if (put_user_u32(addrlen, target_addrlen)) {
1887 ret = -TARGET_EFAULT;
1888 goto fail;
1889 }
1890 }
1891 unlock_user(host_msg, msg, len);
1892 } else {
1893 fail:
1894 unlock_user(host_msg, msg, 0);
1895 }
1896 return ret;
1897 }
1898
1899 #ifdef TARGET_NR_socketcall
1900 /* do_socketcall() Must return target values and target errnos. */
1901 static abi_long do_socketcall(int num, abi_ulong vptr)
1902 {
1903 abi_long ret;
1904 const int n = sizeof(abi_ulong);
1905
1906 switch(num) {
1907 case SOCKOP_socket:
1908 {
1909 abi_ulong domain, type, protocol;
1910
1911 if (get_user_ual(domain, vptr)
1912 || get_user_ual(type, vptr + n)
1913 || get_user_ual(protocol, vptr + 2 * n))
1914 return -TARGET_EFAULT;
1915
1916 ret = do_socket(domain, type, protocol);
1917 }
1918 break;
1919 case SOCKOP_bind:
1920 {
1921 abi_ulong sockfd;
1922 abi_ulong target_addr;
1923 socklen_t addrlen;
1924
1925 if (get_user_ual(sockfd, vptr)
1926 || get_user_ual(target_addr, vptr + n)
1927 || get_user_ual(addrlen, vptr + 2 * n))
1928 return -TARGET_EFAULT;
1929
1930 ret = do_bind(sockfd, target_addr, addrlen);
1931 }
1932 break;
1933 case SOCKOP_connect:
1934 {
1935 abi_ulong sockfd;
1936 abi_ulong target_addr;
1937 socklen_t addrlen;
1938
1939 if (get_user_ual(sockfd, vptr)
1940 || get_user_ual(target_addr, vptr + n)
1941 || get_user_ual(addrlen, vptr + 2 * n))
1942 return -TARGET_EFAULT;
1943
1944 ret = do_connect(sockfd, target_addr, addrlen);
1945 }
1946 break;
1947 case SOCKOP_listen:
1948 {
1949 abi_ulong sockfd, backlog;
1950
1951 if (get_user_ual(sockfd, vptr)
1952 || get_user_ual(backlog, vptr + n))
1953 return -TARGET_EFAULT;
1954
1955 ret = get_errno(listen(sockfd, backlog));
1956 }
1957 break;
1958 case SOCKOP_accept:
1959 {
1960 abi_ulong sockfd;
1961 abi_ulong target_addr, target_addrlen;
1962
1963 if (get_user_ual(sockfd, vptr)
1964 || get_user_ual(target_addr, vptr + n)
1965 || get_user_ual(target_addrlen, vptr + 2 * n))
1966 return -TARGET_EFAULT;
1967
1968 ret = do_accept(sockfd, target_addr, target_addrlen);
1969 }
1970 break;
1971 case SOCKOP_getsockname:
1972 {
1973 abi_ulong sockfd;
1974 abi_ulong target_addr, target_addrlen;
1975
1976 if (get_user_ual(sockfd, vptr)
1977 || get_user_ual(target_addr, vptr + n)
1978 || get_user_ual(target_addrlen, vptr + 2 * n))
1979 return -TARGET_EFAULT;
1980
1981 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1982 }
1983 break;
1984 case SOCKOP_getpeername:
1985 {
1986 abi_ulong sockfd;
1987 abi_ulong target_addr, target_addrlen;
1988
1989 if (get_user_ual(sockfd, vptr)
1990 || get_user_ual(target_addr, vptr + n)
1991 || get_user_ual(target_addrlen, vptr + 2 * n))
1992 return -TARGET_EFAULT;
1993
1994 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1995 }
1996 break;
1997 case SOCKOP_socketpair:
1998 {
1999 abi_ulong domain, type, protocol;
2000 abi_ulong tab;
2001
2002 if (get_user_ual(domain, vptr)
2003 || get_user_ual(type, vptr + n)
2004 || get_user_ual(protocol, vptr + 2 * n)
2005 || get_user_ual(tab, vptr + 3 * n))
2006 return -TARGET_EFAULT;
2007
2008 ret = do_socketpair(domain, type, protocol, tab);
2009 }
2010 break;
2011 case SOCKOP_send:
2012 {
2013 abi_ulong sockfd;
2014 abi_ulong msg;
2015 size_t len;
2016 abi_ulong flags;
2017
2018 if (get_user_ual(sockfd, vptr)
2019 || get_user_ual(msg, vptr + n)
2020 || get_user_ual(len, vptr + 2 * n)
2021 || get_user_ual(flags, vptr + 3 * n))
2022 return -TARGET_EFAULT;
2023
2024 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2025 }
2026 break;
2027 case SOCKOP_recv:
2028 {
2029 abi_ulong sockfd;
2030 abi_ulong msg;
2031 size_t len;
2032 abi_ulong flags;
2033
2034 if (get_user_ual(sockfd, vptr)
2035 || get_user_ual(msg, vptr + n)
2036 || get_user_ual(len, vptr + 2 * n)
2037 || get_user_ual(flags, vptr + 3 * n))
2038 return -TARGET_EFAULT;
2039
2040 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2041 }
2042 break;
2043 case SOCKOP_sendto:
2044 {
2045 abi_ulong sockfd;
2046 abi_ulong msg;
2047 size_t len;
2048 abi_ulong flags;
2049 abi_ulong addr;
2050 socklen_t addrlen;
2051
2052 if (get_user_ual(sockfd, vptr)
2053 || get_user_ual(msg, vptr + n)
2054 || get_user_ual(len, vptr + 2 * n)
2055 || get_user_ual(flags, vptr + 3 * n)
2056 || get_user_ual(addr, vptr + 4 * n)
2057 || get_user_ual(addrlen, vptr + 5 * n))
2058 return -TARGET_EFAULT;
2059
2060 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2061 }
2062 break;
2063 case SOCKOP_recvfrom:
2064 {
2065 abi_ulong sockfd;
2066 abi_ulong msg;
2067 size_t len;
2068 abi_ulong flags;
2069 abi_ulong addr;
2070 socklen_t addrlen;
2071
2072 if (get_user_ual(sockfd, vptr)
2073 || get_user_ual(msg, vptr + n)
2074 || get_user_ual(len, vptr + 2 * n)
2075 || get_user_ual(flags, vptr + 3 * n)
2076 || get_user_ual(addr, vptr + 4 * n)
2077 || get_user_ual(addrlen, vptr + 5 * n))
2078 return -TARGET_EFAULT;
2079
2080 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2081 }
2082 break;
2083 case SOCKOP_shutdown:
2084 {
2085 abi_ulong sockfd, how;
2086
2087 if (get_user_ual(sockfd, vptr)
2088 || get_user_ual(how, vptr + n))
2089 return -TARGET_EFAULT;
2090
2091 ret = get_errno(shutdown(sockfd, how));
2092 }
2093 break;
2094 case SOCKOP_sendmsg:
2095 case SOCKOP_recvmsg:
2096 {
2097 abi_ulong fd;
2098 abi_ulong target_msg;
2099 abi_ulong flags;
2100
2101 if (get_user_ual(fd, vptr)
2102 || get_user_ual(target_msg, vptr + n)
2103 || get_user_ual(flags, vptr + 2 * n))
2104 return -TARGET_EFAULT;
2105
2106 ret = do_sendrecvmsg(fd, target_msg, flags,
2107 (num == SOCKOP_sendmsg));
2108 }
2109 break;
2110 case SOCKOP_setsockopt:
2111 {
2112 abi_ulong sockfd;
2113 abi_ulong level;
2114 abi_ulong optname;
2115 abi_ulong optval;
2116 socklen_t optlen;
2117
2118 if (get_user_ual(sockfd, vptr)
2119 || get_user_ual(level, vptr + n)
2120 || get_user_ual(optname, vptr + 2 * n)
2121 || get_user_ual(optval, vptr + 3 * n)
2122 || get_user_ual(optlen, vptr + 4 * n))
2123 return -TARGET_EFAULT;
2124
2125 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2126 }
2127 break;
2128 case SOCKOP_getsockopt:
2129 {
2130 abi_ulong sockfd;
2131 abi_ulong level;
2132 abi_ulong optname;
2133 abi_ulong optval;
2134 socklen_t optlen;
2135
2136 if (get_user_ual(sockfd, vptr)
2137 || get_user_ual(level, vptr + n)
2138 || get_user_ual(optname, vptr + 2 * n)
2139 || get_user_ual(optval, vptr + 3 * n)
2140 || get_user_ual(optlen, vptr + 4 * n))
2141 return -TARGET_EFAULT;
2142
2143 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2144 }
2145 break;
2146 default:
2147 gemu_log("Unsupported socketcall: %d\n", num);
2148 ret = -TARGET_ENOSYS;
2149 break;
2150 }
2151 return ret;
2152 }
2153 #endif
2154
2155 #define N_SHM_REGIONS 32
2156
2157 static struct shm_region {
2158 abi_ulong start;
2159 abi_ulong size;
2160 } shm_regions[N_SHM_REGIONS];
2161
2162 struct target_ipc_perm
2163 {
2164 abi_long __key;
2165 abi_ulong uid;
2166 abi_ulong gid;
2167 abi_ulong cuid;
2168 abi_ulong cgid;
2169 unsigned short int mode;
2170 unsigned short int __pad1;
2171 unsigned short int __seq;
2172 unsigned short int __pad2;
2173 abi_ulong __unused1;
2174 abi_ulong __unused2;
2175 };
2176
2177 struct target_semid_ds
2178 {
2179 struct target_ipc_perm sem_perm;
2180 abi_ulong sem_otime;
2181 abi_ulong __unused1;
2182 abi_ulong sem_ctime;
2183 abi_ulong __unused2;
2184 abi_ulong sem_nsems;
2185 abi_ulong __unused3;
2186 abi_ulong __unused4;
2187 };
2188
2189 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2190 abi_ulong target_addr)
2191 {
2192 struct target_ipc_perm *target_ip;
2193 struct target_semid_ds *target_sd;
2194
2195 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2196 return -TARGET_EFAULT;
2197 target_ip = &(target_sd->sem_perm);
2198 host_ip->__key = tswapl(target_ip->__key);
2199 host_ip->uid = tswapl(target_ip->uid);
2200 host_ip->gid = tswapl(target_ip->gid);
2201 host_ip->cuid = tswapl(target_ip->cuid);
2202 host_ip->cgid = tswapl(target_ip->cgid);
2203 host_ip->mode = tswapl(target_ip->mode);
2204 unlock_user_struct(target_sd, target_addr, 0);
2205 return 0;
2206 }
2207
2208 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2209 struct ipc_perm *host_ip)
2210 {
2211 struct target_ipc_perm *target_ip;
2212 struct target_semid_ds *target_sd;
2213
2214 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2215 return -TARGET_EFAULT;
2216 target_ip = &(target_sd->sem_perm);
2217 target_ip->__key = tswapl(host_ip->__key);
2218 target_ip->uid = tswapl(host_ip->uid);
2219 target_ip->gid = tswapl(host_ip->gid);
2220 target_ip->cuid = tswapl(host_ip->cuid);
2221 target_ip->cgid = tswapl(host_ip->cgid);
2222 target_ip->mode = tswapl(host_ip->mode);
2223 unlock_user_struct(target_sd, target_addr, 1);
2224 return 0;
2225 }
2226
2227 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2228 abi_ulong target_addr)
2229 {
2230 struct target_semid_ds *target_sd;
2231
2232 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2233 return -TARGET_EFAULT;
2234 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2235 return -TARGET_EFAULT;
2236 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
2237 host_sd->sem_otime = tswapl(target_sd->sem_otime);
2238 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
2239 unlock_user_struct(target_sd, target_addr, 0);
2240 return 0;
2241 }
2242
2243 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2244 struct semid_ds *host_sd)
2245 {
2246 struct target_semid_ds *target_sd;
2247
2248 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2249 return -TARGET_EFAULT;
2250 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2251 return -TARGET_EFAULT;;
2252 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
2253 target_sd->sem_otime = tswapl(host_sd->sem_otime);
2254 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
2255 unlock_user_struct(target_sd, target_addr, 1);
2256 return 0;
2257 }
2258
2259 struct target_seminfo {
2260 int semmap;
2261 int semmni;
2262 int semmns;
2263 int semmnu;
2264 int semmsl;
2265 int semopm;
2266 int semume;
2267 int semusz;
2268 int semvmx;
2269 int semaem;
2270 };
2271
2272 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2273 struct seminfo *host_seminfo)
2274 {
2275 struct target_seminfo *target_seminfo;
2276 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2277 return -TARGET_EFAULT;
2278 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2279 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2280 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2281 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2282 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2283 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2284 __put_user(host_seminfo->semume, &target_seminfo->semume);
2285 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2286 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2287 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2288 unlock_user_struct(target_seminfo, target_addr, 1);
2289 return 0;
2290 }
2291
2292 union semun {
2293 int val;
2294 struct semid_ds *buf;
2295 unsigned short *array;
2296 struct seminfo *__buf;
2297 };
2298
2299 union target_semun {
2300 int val;
2301 abi_ulong buf;
2302 abi_ulong array;
2303 abi_ulong __buf;
2304 };
2305
2306 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2307 abi_ulong target_addr)
2308 {
2309 int nsems;
2310 unsigned short *array;
2311 union semun semun;
2312 struct semid_ds semid_ds;
2313 int i, ret;
2314
2315 semun.buf = &semid_ds;
2316
2317 ret = semctl(semid, 0, IPC_STAT, semun);
2318 if (ret == -1)
2319 return get_errno(ret);
2320
2321 nsems = semid_ds.sem_nsems;
2322
2323 *host_array = malloc(nsems*sizeof(unsigned short));
2324 array = lock_user(VERIFY_READ, target_addr,
2325 nsems*sizeof(unsigned short), 1);
2326 if (!array)
2327 return -TARGET_EFAULT;
2328
2329 for(i=0; i<nsems; i++) {
2330 __get_user((*host_array)[i], &array[i]);
2331 }
2332 unlock_user(array, target_addr, 0);
2333
2334 return 0;
2335 }
2336
2337 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2338 unsigned short **host_array)
2339 {
2340 int nsems;
2341 unsigned short *array;
2342 union semun semun;
2343 struct semid_ds semid_ds;
2344 int i, ret;
2345
2346 semun.buf = &semid_ds;
2347
2348 ret = semctl(semid, 0, IPC_STAT, semun);
2349 if (ret == -1)
2350 return get_errno(ret);
2351
2352 nsems = semid_ds.sem_nsems;
2353
2354 array = lock_user(VERIFY_WRITE, target_addr,
2355 nsems*sizeof(unsigned short), 0);
2356 if (!array)
2357 return -TARGET_EFAULT;
2358
2359 for(i=0; i<nsems; i++) {
2360 __put_user((*host_array)[i], &array[i]);
2361 }
2362 free(*host_array);
2363 unlock_user(array, target_addr, 1);
2364
2365 return 0;
2366 }
2367
2368 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2369 union target_semun target_su)
2370 {
2371 union semun arg;
2372 struct semid_ds dsarg;
2373 unsigned short *array = NULL;
2374 struct seminfo seminfo;
2375 abi_long ret = -TARGET_EINVAL;
2376 abi_long err;
2377 cmd &= 0xff;
2378
2379 switch( cmd ) {
2380 case GETVAL:
2381 case SETVAL:
2382 arg.val = tswapl(target_su.val);
2383 ret = get_errno(semctl(semid, semnum, cmd, arg));
2384 target_su.val = tswapl(arg.val);
2385 break;
2386 case GETALL:
2387 case SETALL:
2388 err = target_to_host_semarray(semid, &array, target_su.array);
2389 if (err)
2390 return err;
2391 arg.array = array;
2392 ret = get_errno(semctl(semid, semnum, cmd, arg));
2393 err = host_to_target_semarray(semid, target_su.array, &array);
2394 if (err)
2395 return err;
2396 break;
2397 case IPC_STAT:
2398 case IPC_SET:
2399 case SEM_STAT:
2400 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2401 if (err)
2402 return err;
2403 arg.buf = &dsarg;
2404 ret = get_errno(semctl(semid, semnum, cmd, arg));
2405 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2406 if (err)
2407 return err;
2408 break;
2409 case IPC_INFO:
2410 case SEM_INFO:
2411 arg.__buf = &seminfo;
2412 ret = get_errno(semctl(semid, semnum, cmd, arg));
2413 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2414 if (err)
2415 return err;
2416 break;
2417 case IPC_RMID:
2418 case GETPID:
2419 case GETNCNT:
2420 case GETZCNT:
2421 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2422 break;
2423 }
2424
2425 return ret;
2426 }
2427
2428 struct target_sembuf {
2429 unsigned short sem_num;
2430 short sem_op;
2431 short sem_flg;
2432 };
2433
2434 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2435 abi_ulong target_addr,
2436 unsigned nsops)
2437 {
2438 struct target_sembuf *target_sembuf;
2439 int i;
2440
2441 target_sembuf = lock_user(VERIFY_READ, target_addr,
2442 nsops*sizeof(struct target_sembuf), 1);
2443 if (!target_sembuf)
2444 return -TARGET_EFAULT;
2445
2446 for(i=0; i<nsops; i++) {
2447 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2448 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2449 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2450 }
2451
2452 unlock_user(target_sembuf, target_addr, 0);
2453
2454 return 0;
2455 }
2456
2457 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2458 {
2459 struct sembuf sops[nsops];
2460
2461 if (target_to_host_sembuf(sops, ptr, nsops))
2462 return -TARGET_EFAULT;
2463
2464 return semop(semid, sops, nsops);
2465 }
2466
2467 struct target_msqid_ds
2468 {
2469 struct target_ipc_perm msg_perm;
2470 abi_ulong msg_stime;
2471 #if TARGET_ABI_BITS == 32
2472 abi_ulong __unused1;
2473 #endif
2474 abi_ulong msg_rtime;
2475 #if TARGET_ABI_BITS == 32
2476 abi_ulong __unused2;
2477 #endif
2478 abi_ulong msg_ctime;
2479 #if TARGET_ABI_BITS == 32
2480 abi_ulong __unused3;
2481 #endif
2482 abi_ulong __msg_cbytes;
2483 abi_ulong msg_qnum;
2484 abi_ulong msg_qbytes;
2485 abi_ulong msg_lspid;
2486 abi_ulong msg_lrpid;
2487 abi_ulong __unused4;
2488 abi_ulong __unused5;
2489 };
2490
2491 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2492 abi_ulong target_addr)
2493 {
2494 struct target_msqid_ds *target_md;
2495
2496 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2497 return -TARGET_EFAULT;
2498 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2499 return -TARGET_EFAULT;
2500 host_md->msg_stime = tswapl(target_md->msg_stime);
2501 host_md->msg_rtime = tswapl(target_md->msg_rtime);
2502 host_md->msg_ctime = tswapl(target_md->msg_ctime);
2503 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
2504 host_md->msg_qnum = tswapl(target_md->msg_qnum);
2505 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
2506 host_md->msg_lspid = tswapl(target_md->msg_lspid);
2507 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
2508 unlock_user_struct(target_md, target_addr, 0);
2509 return 0;
2510 }
2511
2512 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2513 struct msqid_ds *host_md)
2514 {
2515 struct target_msqid_ds *target_md;
2516
2517 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2518 return -TARGET_EFAULT;
2519 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2520 return -TARGET_EFAULT;
2521 target_md->msg_stime = tswapl(host_md->msg_stime);
2522 target_md->msg_rtime = tswapl(host_md->msg_rtime);
2523 target_md->msg_ctime = tswapl(host_md->msg_ctime);
2524 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
2525 target_md->msg_qnum = tswapl(host_md->msg_qnum);
2526 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
2527 target_md->msg_lspid = tswapl(host_md->msg_lspid);
2528 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
2529 unlock_user_struct(target_md, target_addr, 1);
2530 return 0;
2531 }
2532
2533 struct target_msginfo {
2534 int msgpool;
2535 int msgmap;
2536 int msgmax;
2537 int msgmnb;
2538 int msgmni;
2539 int msgssz;
2540 int msgtql;
2541 unsigned short int msgseg;
2542 };
2543
2544 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2545 struct msginfo *host_msginfo)
2546 {
2547 struct target_msginfo *target_msginfo;
2548 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2549 return -TARGET_EFAULT;
2550 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2551 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2552 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2553 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2554 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2555 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2556 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2557 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2558 unlock_user_struct(target_msginfo, target_addr, 1);
2559 return 0;
2560 }
2561
2562 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2563 {
2564 struct msqid_ds dsarg;
2565 struct msginfo msginfo;
2566 abi_long ret = -TARGET_EINVAL;
2567
2568 cmd &= 0xff;
2569
2570 switch (cmd) {
2571 case IPC_STAT:
2572 case IPC_SET:
2573 case MSG_STAT:
2574 if (target_to_host_msqid_ds(&dsarg,ptr))
2575 return -TARGET_EFAULT;
2576 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2577 if (host_to_target_msqid_ds(ptr,&dsarg))
2578 return -TARGET_EFAULT;
2579 break;
2580 case IPC_RMID:
2581 ret = get_errno(msgctl(msgid, cmd, NULL));
2582 break;
2583 case IPC_INFO:
2584 case MSG_INFO:
2585 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2586 if (host_to_target_msginfo(ptr, &msginfo))
2587 return -TARGET_EFAULT;
2588 break;
2589 }
2590
2591 return ret;
2592 }
2593
2594 struct target_msgbuf {
2595 abi_long mtype;
2596 char mtext[1];
2597 };
2598
2599 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2600 unsigned int msgsz, int msgflg)
2601 {
2602 struct target_msgbuf *target_mb;
2603 struct msgbuf *host_mb;
2604 abi_long ret = 0;
2605
2606 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2607 return -TARGET_EFAULT;
2608 host_mb = malloc(msgsz+sizeof(long));
2609 host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
2610 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2611 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2612 free(host_mb);
2613 unlock_user_struct(target_mb, msgp, 0);
2614
2615 return ret;
2616 }
2617
2618 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2619 unsigned int msgsz, abi_long msgtyp,
2620 int msgflg)
2621 {
2622 struct target_msgbuf *target_mb;
2623 char *target_mtext;
2624 struct msgbuf *host_mb;
2625 abi_long ret = 0;
2626
2627 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2628 return -TARGET_EFAULT;
2629
2630 host_mb = malloc(msgsz+sizeof(long));
2631 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
2632
2633 if (ret > 0) {
2634 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2635 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2636 if (!target_mtext) {
2637 ret = -TARGET_EFAULT;
2638 goto end;
2639 }
2640 memcpy(target_mb->mtext, host_mb->mtext, ret);
2641 unlock_user(target_mtext, target_mtext_addr, ret);
2642 }
2643
2644 target_mb->mtype = tswapl(host_mb->mtype);
2645 free(host_mb);
2646
2647 end:
2648 if (target_mb)
2649 unlock_user_struct(target_mb, msgp, 1);
2650 return ret;
2651 }
2652
2653 struct target_shmid_ds
2654 {
2655 struct target_ipc_perm shm_perm;
2656 abi_ulong shm_segsz;
2657 abi_ulong shm_atime;
2658 #if TARGET_ABI_BITS == 32
2659 abi_ulong __unused1;
2660 #endif
2661 abi_ulong shm_dtime;
2662 #if TARGET_ABI_BITS == 32
2663 abi_ulong __unused2;
2664 #endif
2665 abi_ulong shm_ctime;
2666 #if TARGET_ABI_BITS == 32
2667 abi_ulong __unused3;
2668 #endif
2669 int shm_cpid;
2670 int shm_lpid;
2671 abi_ulong shm_nattch;
2672 unsigned long int __unused4;
2673 unsigned long int __unused5;
2674 };
2675
2676 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2677 abi_ulong target_addr)
2678 {
2679 struct target_shmid_ds *target_sd;
2680
2681 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2682 return -TARGET_EFAULT;
2683 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2684 return -TARGET_EFAULT;
2685 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2686 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2687 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2688 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2689 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2690 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2691 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2692 unlock_user_struct(target_sd, target_addr, 0);
2693 return 0;
2694 }
2695
2696 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2697 struct shmid_ds *host_sd)
2698 {
2699 struct target_shmid_ds *target_sd;
2700
2701 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2702 return -TARGET_EFAULT;
2703 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2704 return -TARGET_EFAULT;
2705 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2706 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2707 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2708 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2709 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2710 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2711 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2712 unlock_user_struct(target_sd, target_addr, 1);
2713 return 0;
2714 }
2715
2716 struct target_shminfo {
2717 abi_ulong shmmax;
2718 abi_ulong shmmin;
2719 abi_ulong shmmni;
2720 abi_ulong shmseg;
2721 abi_ulong shmall;
2722 };
2723
2724 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2725 struct shminfo *host_shminfo)
2726 {
2727 struct target_shminfo *target_shminfo;
2728 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2729 return -TARGET_EFAULT;
2730 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2731 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2732 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2733 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2734 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2735 unlock_user_struct(target_shminfo, target_addr, 1);
2736 return 0;
2737 }
2738
2739 struct target_shm_info {
2740 int used_ids;
2741 abi_ulong shm_tot;
2742 abi_ulong shm_rss;
2743 abi_ulong shm_swp;
2744 abi_ulong swap_attempts;
2745 abi_ulong swap_successes;
2746 };
2747
2748 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2749 struct shm_info *host_shm_info)
2750 {
2751 struct target_shm_info *target_shm_info;
2752 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2753 return -TARGET_EFAULT;
2754 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2755 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2756 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2757 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2758 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2759 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2760 unlock_user_struct(target_shm_info, target_addr, 1);
2761 return 0;
2762 }
2763
2764 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2765 {
2766 struct shmid_ds dsarg;
2767 struct shminfo shminfo;
2768 struct shm_info shm_info;
2769 abi_long ret = -TARGET_EINVAL;
2770
2771 cmd &= 0xff;
2772
2773 switch(cmd) {
2774 case IPC_STAT:
2775 case IPC_SET:
2776 case SHM_STAT:
2777 if (target_to_host_shmid_ds(&dsarg, buf))
2778 return -TARGET_EFAULT;
2779 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2780 if (host_to_target_shmid_ds(buf, &dsarg))
2781 return -TARGET_EFAULT;
2782 break;
2783 case IPC_INFO:
2784 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2785 if (host_to_target_shminfo(buf, &shminfo))
2786 return -TARGET_EFAULT;
2787 break;
2788 case SHM_INFO:
2789 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2790 if (host_to_target_shm_info(buf, &shm_info))
2791 return -TARGET_EFAULT;
2792 break;
2793 case IPC_RMID:
2794 case SHM_LOCK:
2795 case SHM_UNLOCK:
2796 ret = get_errno(shmctl(shmid, cmd, NULL));
2797 break;
2798 }
2799
2800 return ret;
2801 }
2802
2803 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2804 {
2805 abi_long raddr;
2806 void *host_raddr;
2807 struct shmid_ds shm_info;
2808 int i,ret;
2809
2810 /* find out the length of the shared memory segment */
2811 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2812 if (is_error(ret)) {
2813 /* can't get length, bail out */
2814 return ret;
2815 }
2816
2817 mmap_lock();
2818
2819 if (shmaddr)
2820 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2821 else {
2822 abi_ulong mmap_start;
2823
2824 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2825
2826 if (mmap_start == -1) {
2827 errno = ENOMEM;
2828 host_raddr = (void *)-1;
2829 } else
2830 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2831 }
2832
2833 if (host_raddr == (void *)-1) {
2834 mmap_unlock();
2835 return get_errno((long)host_raddr);
2836 }
2837 raddr=h2g((unsigned long)host_raddr);
2838
2839 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2840 PAGE_VALID | PAGE_READ |
2841 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2842
2843 for (i = 0; i < N_SHM_REGIONS; i++) {
2844 if (shm_regions[i].start == 0) {
2845 shm_regions[i].start = raddr;
2846 shm_regions[i].size = shm_info.shm_segsz;
2847 break;
2848 }
2849 }
2850
2851 mmap_unlock();
2852 return raddr;
2853
2854 }
2855
2856 static inline abi_long do_shmdt(abi_ulong shmaddr)
2857 {
2858 int i;
2859
2860 for (i = 0; i < N_SHM_REGIONS; ++i) {
2861 if (shm_regions[i].start == shmaddr) {
2862 shm_regions[i].start = 0;
2863 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
2864 break;
2865 }
2866 }
2867
2868 return get_errno(shmdt(g2h(shmaddr)));
2869 }
2870
2871 #ifdef TARGET_NR_ipc
2872 /* ??? This only works with linear mappings. */
2873 /* do_ipc() must return target values and target errnos. */
2874 static abi_long do_ipc(unsigned int call, int first,
2875 int second, int third,
2876 abi_long ptr, abi_long fifth)
2877 {
2878 int version;
2879 abi_long ret = 0;
2880
2881 version = call >> 16;
2882 call &= 0xffff;
2883
2884 switch (call) {
2885 case IPCOP_semop:
2886 ret = do_semop(first, ptr, second);
2887 break;
2888
2889 case IPCOP_semget:
2890 ret = get_errno(semget(first, second, third));
2891 break;
2892
2893 case IPCOP_semctl:
2894 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
2895 break;
2896
2897 case IPCOP_msgget:
2898 ret = get_errno(msgget(first, second));
2899 break;
2900
2901 case IPCOP_msgsnd:
2902 ret = do_msgsnd(first, ptr, second, third);
2903 break;
2904
2905 case IPCOP_msgctl:
2906 ret = do_msgctl(first, second, ptr);
2907 break;
2908
2909 case IPCOP_msgrcv:
2910 switch (version) {
2911 case 0:
2912 {
2913 struct target_ipc_kludge {
2914 abi_long msgp;
2915 abi_long msgtyp;
2916 } *tmp;
2917
2918 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
2919 ret = -TARGET_EFAULT;
2920 break;
2921 }
2922
2923 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
2924
2925 unlock_user_struct(tmp, ptr, 0);
2926 break;
2927 }
2928 default:
2929 ret = do_msgrcv(first, ptr, second, fifth, third);
2930 }
2931 break;
2932
2933 case IPCOP_shmat:
2934 switch (version) {
2935 default:
2936 {
2937 abi_ulong raddr;
2938 raddr = do_shmat(first, ptr, second);
2939 if (is_error(raddr))
2940 return get_errno(raddr);
2941 if (put_user_ual(raddr, third))
2942 return -TARGET_EFAULT;
2943 break;
2944 }
2945 case 1:
2946 ret = -TARGET_EINVAL;
2947 break;
2948 }
2949 break;
2950 case IPCOP_shmdt:
2951 ret = do_shmdt(ptr);
2952 break;
2953
2954 case IPCOP_shmget:
2955 /* IPC_* flag values are the same on all linux platforms */
2956 ret = get_errno(shmget(first, second, third));
2957 break;
2958
2959 /* IPC_* and SHM_* command values are the same on all linux platforms */
2960 case IPCOP_shmctl:
2961 ret = do_shmctl(first, second, third);
2962 break;
2963 default:
2964 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2965 ret = -TARGET_ENOSYS;
2966 break;
2967 }
2968 return ret;
2969 }
2970 #endif
2971
2972 /* kernel structure types definitions */
2973 #define IFNAMSIZ 16
2974
2975 #define STRUCT(name, ...) STRUCT_ ## name,
2976 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2977 enum {
2978 #include "syscall_types.h"
2979 };
2980 #undef STRUCT
2981 #undef STRUCT_SPECIAL
2982
2983 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
2984 #define STRUCT_SPECIAL(name)
2985 #include "syscall_types.h"
2986 #undef STRUCT
2987 #undef STRUCT_SPECIAL
2988
2989 typedef struct IOCTLEntry IOCTLEntry;
2990
2991 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
2992 int fd, abi_long cmd, abi_long arg);
2993
2994 struct IOCTLEntry {
2995 unsigned int target_cmd;
2996 unsigned int host_cmd;
2997 const char *name;
2998 int access;
2999 do_ioctl_fn *do_ioctl;
3000 const argtype arg_type[5];
3001 };
3002
3003 #define IOC_R 0x0001
3004 #define IOC_W 0x0002
3005 #define IOC_RW (IOC_R | IOC_W)
3006
3007 #define MAX_STRUCT_SIZE 4096
3008
3009 #ifdef CONFIG_FIEMAP
3010 /* So fiemap access checks don't overflow on 32 bit systems.
3011 * This is very slightly smaller than the limit imposed by
3012 * the underlying kernel.
3013 */
3014 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
3015 / sizeof(struct fiemap_extent))
3016
3017 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
3018 int fd, abi_long cmd, abi_long arg)
3019 {
3020 /* The parameter for this ioctl is a struct fiemap followed
3021 * by an array of struct fiemap_extent whose size is set
3022 * in fiemap->fm_extent_count. The array is filled in by the
3023 * ioctl.
3024 */
3025 int target_size_in, target_size_out;
3026 struct fiemap *fm;
3027 const argtype *arg_type = ie->arg_type;
3028 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3029 void *argptr, *p;
3030 abi_long ret;
3031 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3032 uint32_t outbufsz;
3033 int free_fm = 0;
3034
3035 assert(arg_type[0] == TYPE_PTR);
3036 assert(ie->access == IOC_RW);
3037 arg_type++;
3038 target_size_in = thunk_type_size(arg_type, 0);
3039 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3040 if (!argptr) {
3041 return -TARGET_EFAULT;
3042 }
3043 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3044 unlock_user(argptr, arg, 0);
3045 fm = (struct fiemap *)buf_temp;
3046 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3047 return -TARGET_EINVAL;
3048 }
3049
3050 outbufsz = sizeof (*fm) +
3051 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3052
3053 if (outbufsz > MAX_STRUCT_SIZE) {
3054 /* We can't fit all the extents into the fixed size buffer.
3055 * Allocate one that is large enough and use it instead.
3056 */
3057 fm = malloc(outbufsz);
3058 if (!fm) {
3059 return -TARGET_ENOMEM;
3060 }
3061 memcpy(fm, buf_temp, sizeof(struct fiemap));
3062 free_fm = 1;
3063 }
3064 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3065 if (!is_error(ret)) {
3066 target_size_out = target_size_in;
3067 /* An extent_count of 0 means we were only counting the extents
3068 * so there are no structs to copy
3069 */
3070 if (fm->fm_extent_count != 0) {
3071 target_size_out += fm->fm_mapped_extents * extent_size;
3072 }
3073 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3074 if (!argptr) {
3075 ret = -TARGET_EFAULT;
3076 } else {
3077 /* Convert the struct fiemap */
3078 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3079 if (fm->fm_extent_count != 0) {
3080 p = argptr + target_size_in;
3081 /* ...and then all the struct fiemap_extents */
3082 for (i = 0; i < fm->fm_mapped_extents; i++) {
3083 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3084 THUNK_TARGET);
3085 p += extent_size;
3086 }
3087 }
3088 unlock_user(argptr, arg, target_size_out);
3089 }
3090 }
3091 if (free_fm) {
3092 free(fm);
3093 }
3094 return ret;
3095 }
3096 #endif
3097
3098 static IOCTLEntry ioctl_entries[] = {
3099 #define IOCTL(cmd, access, ...) \
3100 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3101 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3102 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3103 #include "ioctls.h"
3104 { 0, 0, },
3105 };
3106
3107 /* ??? Implement proper locking for ioctls. */
3108 /* do_ioctl() Must return target values and target errnos. */
3109 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3110 {
3111 const IOCTLEntry *ie;
3112 const argtype *arg_type;
3113 abi_long ret;
3114 uint8_t buf_temp[MAX_STRUCT_SIZE];
3115 int target_size;
3116 void *argptr;
3117
3118 ie = ioctl_entries;
3119 for(;;) {
3120 if (ie->target_cmd == 0) {
3121 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3122 return -TARGET_ENOSYS;
3123 }
3124 if (ie->target_cmd == cmd)
3125 break;
3126 ie++;
3127 }
3128 arg_type = ie->arg_type;
3129 #if defined(DEBUG)
3130 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3131 #endif
3132 if (ie->do_ioctl) {
3133 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3134 }
3135
3136 switch(arg_type[0]) {
3137 case TYPE_NULL:
3138 /* no argument */
3139 ret = get_errno(ioctl(fd, ie->host_cmd));
3140 break;
3141 case TYPE_PTRVOID:
3142 case TYPE_INT:
3143 /* int argment */
3144 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3145 break;
3146 case TYPE_PTR:
3147 arg_type++;
3148 target_size = thunk_type_size(arg_type, 0);
3149 switch(ie->access) {
3150 case IOC_R:
3151 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3152 if (!is_error(ret)) {
3153 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3154 if (!argptr)
3155 return -TARGET_EFAULT;
3156 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3157 unlock_user(argptr, arg, target_size);
3158 }
3159 break;
3160 case IOC_W:
3161 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3162 if (!argptr)
3163 return -TARGET_EFAULT;
3164 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3165 unlock_user(argptr, arg, 0);
3166 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3167 break;
3168 default:
3169 case IOC_RW:
3170 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3171 if (!argptr)
3172 return -TARGET_EFAULT;
3173 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3174 unlock_user(argptr, arg, 0);
3175 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3176 if (!is_error(ret)) {
3177 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3178 if (!argptr)
3179 return -TARGET_EFAULT;
3180 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3181 unlock_user(argptr, arg, target_size);
3182 }
3183 break;
3184 }
3185 break;
3186 default:
3187 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3188 (long)cmd, arg_type[0]);
3189 ret = -TARGET_ENOSYS;
3190 break;
3191 }
3192 return ret;
3193 }
3194
3195 static const bitmask_transtbl iflag_tbl[] = {
3196 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3197 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3198 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3199 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3200 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3201 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3202 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3203 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3204 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3205 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3206 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3207 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3208 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3209 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3210 { 0, 0, 0, 0 }
3211 };
3212
3213 static const bitmask_transtbl oflag_tbl[] = {
3214 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3215 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3216 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3217 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3218 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3219 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3220 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3221 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3222 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3223 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3224 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3225 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3226 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3227 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3228 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3229 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3230 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3231 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3232 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3233 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3234 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3235 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3236 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3237 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3238 { 0, 0, 0, 0 }
3239 };
3240
3241 static const bitmask_transtbl cflag_tbl[] = {
3242 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3243 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3244 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3245 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3246 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3247 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3248 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3249 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3250 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3251 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3252 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3253 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3254 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3255 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3256 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3257 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3258 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3259 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3260 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3261 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3262 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3263 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3264 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3265 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3266 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3267 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3268 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3269 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3270 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3271 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3272 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3273 { 0, 0, 0, 0 }
3274 };
3275
3276 static const bitmask_transtbl lflag_tbl[] = {
3277 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3278 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3279 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3280 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3281 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3282 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3283 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3284 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3285 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3286 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3287 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3288 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3289 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3290 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3291 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3292 { 0, 0, 0, 0 }
3293 };
3294
3295 static void target_to_host_termios (void *dst, const void *src)
3296 {
3297 struct host_termios *host = dst;
3298 const struct target_termios *target = src;
3299
3300 host->c_iflag =
3301 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3302 host->c_oflag =
3303 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3304 host->c_cflag =
3305 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3306 host->c_lflag =
3307 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3308 host->c_line = target->c_line;
3309
3310 memset(host->c_cc, 0, sizeof(host->c_cc));
3311 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3312 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3313 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3314 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3315 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3316 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3317 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3318 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3319 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3320 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3321 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3322 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3323 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3324 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3325 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3326 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3327 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3328 }
3329
3330 static void host_to_target_termios (void *dst, const void *src)
3331 {
3332 struct target_termios *target = dst;
3333 const struct host_termios *host = src;
3334
3335 target->c_iflag =
3336 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3337 target->c_oflag =
3338 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3339 target->c_cflag =
3340 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3341 target->c_lflag =
3342 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3343 target->c_line = host->c_line;
3344
3345 memset(target->c_cc, 0, sizeof(target->c_cc));
3346 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3347 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3348 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3349 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3350 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3351 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3352 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3353 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3354 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3355 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3356 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3357 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3358 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3359 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3360 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3361 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3362 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3363 }
3364
3365 static const StructEntry struct_termios_def = {
3366 .convert = { host_to_target_termios, target_to_host_termios },
3367 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3368 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3369 };
3370
3371 static bitmask_transtbl mmap_flags_tbl[] = {
3372 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3373 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3374 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3375 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3376 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3377 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3378 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3379 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3380 { 0, 0, 0, 0 }
3381 };
3382
3383 #if defined(TARGET_I386)
3384
3385 /* NOTE: there is really one LDT for all the threads */
3386 static uint8_t *ldt_table;
3387
3388 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3389 {
3390 int size;
3391 void *p;
3392
3393 if (!ldt_table)
3394 return 0;
3395 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3396 if (size > bytecount)
3397 size = bytecount;
3398 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3399 if (!p)
3400 return -TARGET_EFAULT;
3401 /* ??? Should this by byteswapped? */
3402 memcpy(p, ldt_table, size);
3403 unlock_user(p, ptr, size);
3404 return size;
3405 }
3406
3407 /* XXX: add locking support */
3408 static abi_long write_ldt(CPUX86State *env,
3409 abi_ulong ptr, unsigned long bytecount, int oldmode)
3410 {
3411 struct target_modify_ldt_ldt_s ldt_info;
3412 struct target_modify_ldt_ldt_s *target_ldt_info;
3413 int seg_32bit, contents, read_exec_only, limit_in_pages;
3414 int seg_not_present, useable, lm;
3415 uint32_t *lp, entry_1, entry_2;
3416
3417 if (bytecount != sizeof(ldt_info))
3418 return -TARGET_EINVAL;
3419 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3420 return -TARGET_EFAULT;
3421 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3422 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3423 ldt_info.limit = tswap32(target_ldt_info->limit);
3424 ldt_info.flags = tswap32(target_ldt_info->flags);
3425 unlock_user_struct(target_ldt_info, ptr, 0);
3426
3427 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3428 return -TARGET_EINVAL;
3429 seg_32bit = ldt_info.flags & 1;
3430 contents = (ldt_info.flags >> 1) & 3;
3431 read_exec_only = (ldt_info.flags >> 3) & 1;
3432 limit_in_pages = (ldt_info.flags >> 4) & 1;
3433 seg_not_present = (ldt_info.flags >> 5) & 1;
3434 useable = (ldt_info.flags >> 6) & 1;
3435 #ifdef TARGET_ABI32
3436 lm = 0;
3437 #else
3438 lm = (ldt_info.flags >> 7) & 1;
3439 #endif
3440 if (contents == 3) {
3441 if (oldmode)
3442 return -TARGET_EINVAL;
3443 if (seg_not_present == 0)
3444 return -TARGET_EINVAL;
3445 }
3446 /* allocate the LDT */
3447 if (!ldt_table) {
3448 env->ldt.base = target_mmap(0,
3449 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3450 PROT_READ|PROT_WRITE,
3451 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3452 if (env->ldt.base == -1)
3453 return -TARGET_ENOMEM;
3454 memset(g2h(env->ldt.base), 0,
3455 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3456 env->ldt.limit = 0xffff;
3457 ldt_table = g2h(env->ldt.base);
3458 }
3459
3460 /* NOTE: same code as Linux kernel */
3461 /* Allow LDTs to be cleared by the user. */
3462 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3463 if (oldmode ||
3464 (contents == 0 &&
3465 read_exec_only == 1 &&
3466 seg_32bit == 0 &&
3467 limit_in_pages == 0 &&
3468 seg_not_present == 1 &&
3469 useable == 0 )) {
3470 entry_1 = 0;
3471 entry_2 = 0;
3472 goto install;
3473 }
3474 }
3475
3476 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3477 (ldt_info.limit & 0x0ffff);
3478 entry_2 = (ldt_info.base_addr & 0xff000000) |
3479 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3480 (ldt_info.limit & 0xf0000) |
3481 ((read_exec_only ^ 1) << 9) |
3482 (contents << 10) |
3483 ((seg_not_present ^ 1) << 15) |
3484 (seg_32bit << 22) |
3485 (limit_in_pages << 23) |
3486 (lm << 21) |
3487 0x7000;
3488 if (!oldmode)
3489 entry_2 |= (useable << 20);
3490
3491 /* Install the new entry ... */
3492 install:
3493 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
3494 lp[0] = tswap32(entry_1);
3495 lp[1] = tswap32(entry_2);
3496 return 0;
3497 }
3498
3499 /* specific and weird i386 syscalls */
3500 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
3501 unsigned long bytecount)
3502 {
3503 abi_long ret;
3504
3505 switch (func) {
3506 case 0:
3507 ret = read_ldt(ptr, bytecount);
3508 break;
3509 case 1:
3510 ret = write_ldt(env, ptr, bytecount, 1);
3511 break;
3512 case 0x11:
3513 ret = write_ldt(env, ptr, bytecount, 0);
3514 break;
3515 default:
3516 ret = -TARGET_ENOSYS;
3517 break;
3518 }
3519 return ret;
3520 }
3521
3522 #if defined(TARGET_I386) && defined(TARGET_ABI32)
3523 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
3524 {
3525 uint64_t *gdt_table = g2h(env->gdt.base);
3526 struct target_modify_ldt_ldt_s ldt_info;
3527 struct target_modify_ldt_ldt_s *target_ldt_info;
3528 int seg_32bit, contents, read_exec_only, limit_in_pages;
3529 int seg_not_present, useable, lm;
3530 uint32_t *lp, entry_1, entry_2;
3531 int i;
3532
3533 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3534 if (!target_ldt_info)
3535 return -TARGET_EFAULT;
3536 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3537 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
3538 ldt_info.limit = tswap32(target_ldt_info->limit);
3539 ldt_info.flags = tswap32(target_ldt_info->flags);
3540 if (ldt_info.entry_number == -1) {
3541 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
3542 if (gdt_table[i] == 0) {
3543 ldt_info.entry_number = i;
3544 target_ldt_info->entry_number = tswap32(i);
3545 break;
3546 }
3547 }
3548 }
3549 unlock_user_struct(target_ldt_info, ptr, 1);
3550
3551 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
3552 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
3553 return -TARGET_EINVAL;
3554 seg_32bit = ldt_info.flags & 1;
3555 contents = (ldt_info.flags >> 1) & 3;
3556 read_exec_only = (ldt_info.flags >> 3) & 1;
3557 limit_in_pages = (ldt_info.flags >> 4) & 1;
3558 seg_not_present = (ldt_info.flags >> 5) & 1;
3559 useable = (ldt_info.flags >> 6) & 1;
3560 #ifdef TARGET_ABI32
3561 lm = 0;
3562 #else
3563 lm = (ldt_info.flags >> 7) & 1;
3564 #endif
3565
3566 if (contents == 3) {
3567 if (seg_not_present == 0)
3568 return -TARGET_EINVAL;
3569 }
3570
3571 /* NOTE: same code as Linux kernel */
3572 /* Allow LDTs to be cleared by the user. */
3573 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3574 if ((contents == 0 &&
3575 read_exec_only == 1 &&
3576 seg_32bit == 0 &&
3577 limit_in_pages == 0 &&
3578 seg_not_present == 1 &&
3579 useable == 0 )) {
3580 entry_1 = 0;
3581 entry_2 = 0;
3582 goto install;
3583 }
3584 }
3585
3586 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
3587 (ldt_info.limit & 0x0ffff);
3588 entry_2 = (ldt_info.base_addr & 0xff000000) |
3589 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
3590 (ldt_info.limit & 0xf0000) |
3591 ((read_exec_only ^ 1) << 9) |
3592 (contents << 10) |
3593 ((seg_not_present ^ 1) << 15) |
3594 (seg_32bit << 22) |
3595 (limit_in_pages << 23) |
3596 (useable << 20) |
3597 (lm << 21) |
3598 0x7000;
3599
3600 /* Install the new entry ... */
3601 install:
3602 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
3603 lp[0] = tswap32(entry_1);
3604 lp[1] = tswap32(entry_2);
3605 return 0;
3606 }
3607
3608 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
3609 {
3610 struct target_modify_ldt_ldt_s *target_ldt_info;
3611 uint64_t *gdt_table = g2h(env->gdt.base);
3612 uint32_t base_addr, limit, flags;
3613 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
3614 int seg_not_present, useable, lm;
3615 uint32_t *lp, entry_1, entry_2;
3616
3617 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
3618 if (!target_ldt_info)
3619 return -TARGET_EFAULT;
3620 idx = tswap32(target_ldt_info->entry_number);
3621 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
3622 idx > TARGET_GDT_ENTRY_TLS_MAX) {
3623 unlock_user_struct(target_ldt_info, ptr, 1);
3624 return -TARGET_EINVAL;
3625 }
3626 lp = (uint32_t *)(gdt_table + idx);
3627 entry_1 = tswap32(lp[0]);
3628 entry_2 = tswap32(lp[1]);
3629
3630 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
3631 contents = (entry_2 >> 10) & 3;
3632 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
3633 seg_32bit = (entry_2 >> 22) & 1;
3634 limit_in_pages = (entry_2 >> 23) & 1;
3635 useable = (entry_2 >> 20) & 1;
3636 #ifdef TARGET_ABI32
3637 lm = 0;
3638 #else
3639 lm = (entry_2 >> 21) & 1;
3640 #endif
3641 flags = (seg_32bit << 0) | (contents << 1) |
3642 (read_exec_only << 3) | (limit_in_pages << 4) |
3643 (seg_not_present << 5) | (useable << 6) | (lm << 7);
3644 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
3645 base_addr = (entry_1 >> 16) |
3646 (entry_2 & 0xff000000) |
3647 ((entry_2 & 0xff) << 16);
3648 target_ldt_info->base_addr = tswapl(base_addr);
3649 target_ldt_info->limit = tswap32(limit);
3650 target_ldt_info->flags = tswap32(flags);
3651 unlock_user_struct(target_ldt_info, ptr, 1);
3652 return 0;
3653 }
3654 #endif /* TARGET_I386 && TARGET_ABI32 */
3655
3656 #ifndef TARGET_ABI32
3657 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
3658 {
3659 abi_long ret;
3660 abi_ulong val;
3661 int idx;
3662
3663 switch(code) {
3664 case TARGET_ARCH_SET_GS:
3665 case TARGET_ARCH_SET_FS:
3666 if (code == TARGET_ARCH_SET_GS)
3667 idx = R_GS;
3668 else
3669 idx = R_FS;
3670 cpu_x86_load_seg(env, idx, 0);
3671 env->segs[idx].base = addr;
3672 break;
3673 case TARGET_ARCH_GET_GS:
3674 case TARGET_ARCH_GET_FS:
3675 if (code == TARGET_ARCH_GET_GS)
3676 idx = R_GS;
3677 else
3678 idx = R_FS;
3679 val = env->segs[idx].base;
3680 if (put_user(val, addr, abi_ulong))
3681 return -TARGET_EFAULT;
3682 break;
3683 default:
3684 ret = -TARGET_EINVAL;
3685 break;
3686 }
3687 return 0;
3688 }
3689 #endif
3690
3691 #endif /* defined(TARGET_I386) */
3692
3693 #if defined(CONFIG_USE_NPTL)
3694
3695 #define NEW_STACK_SIZE PTHREAD_STACK_MIN
3696
3697 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
3698 typedef struct {
3699 CPUState *env;
3700 pthread_mutex_t mutex;
3701 pthread_cond_t cond;
3702 pthread_t thread;
3703 uint32_t tid;
3704 abi_ulong child_tidptr;
3705 abi_ulong parent_tidptr;
3706 sigset_t sigmask;
3707 } new_thread_info;
3708
3709 static void *clone_func(void *arg)
3710 {
3711 new_thread_info *info = arg;
3712 CPUState *env;
3713 TaskState *ts;
3714
3715 env = info->env;
3716 thread_env = env;
3717 ts = (TaskState *)thread_env->opaque;
3718 info->tid = gettid();
3719 env->host_tid = info->tid;
3720 task_settid(ts);
3721 if (info->child_tidptr)
3722 put_user_u32(info->tid, info->child_tidptr);
3723 if (info->parent_tidptr)
3724 put_user_u32(info->tid, info->parent_tidptr);
3725 /* Enable signals. */
3726 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
3727 /* Signal to the parent that we're ready. */
3728 pthread_mutex_lock(&info->mutex);
3729 pthread_cond_broadcast(&info->cond);
3730 pthread_mutex_unlock(&info->mutex);
3731 /* Wait until the parent has finshed initializing the tls state. */
3732 pthread_mutex_lock(&clone_lock);
3733 pthread_mutex_unlock(&clone_lock);
3734 cpu_loop(env);
3735 /* never exits */
3736 return NULL;
3737 }
3738 #else
3739 /* this stack is the equivalent of the kernel stack associated with a
3740 thread/process */
3741 #define NEW_STACK_SIZE 8192
3742
3743 static int clone_func(void *arg)
3744 {
3745 CPUState *env = arg;
3746 cpu_loop(env);
3747 /* never exits */
3748 return 0;
3749 }
3750 #endif
3751
3752 /* do_fork() Must return host values and target errnos (unlike most
3753 do_*() functions). */
3754 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
3755 abi_ulong parent_tidptr, target_ulong newtls,
3756 abi_ulong child_tidptr)
3757 {
3758 int ret;
3759 TaskState *ts;
3760 CPUState *new_env;
3761 #if defined(CONFIG_USE_NPTL)
3762 unsigned int nptl_flags;
3763 sigset_t sigmask;
3764 #else
3765 uint8_t *new_stack;
3766 #endif
3767
3768 /* Emulate vfork() with fork() */
3769 if (flags & CLONE_VFORK)
3770 flags &= ~(CLONE_VFORK | CLONE_VM);
3771
3772 if (flags & CLONE_VM) {
3773 TaskState *parent_ts = (TaskState *)env->opaque;
3774 #if defined(CONFIG_USE_NPTL)
3775 new_thread_info info;
3776 pthread_attr_t attr;
3777 #endif
3778 ts = qemu_mallocz(sizeof(TaskState));
3779 init_task_state(ts);
3780 /* we create a new CPU instance. */
3781 new_env = cpu_copy(env);
3782 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3783 cpu_reset(new_env);
3784 #endif
3785 /* Init regs that differ from the parent. */
3786 cpu_clone_regs(new_env, newsp);
3787 new_env->opaque = ts;
3788 ts->bprm = parent_ts->bprm;
3789 ts->info = parent_ts->info;
3790 #if defined(CONFIG_USE_NPTL)
3791 nptl_flags = flags;
3792 flags &= ~CLONE_NPTL_FLAGS2;
3793
3794 if (nptl_flags & CLONE_CHILD_CLEARTID) {
3795 ts->child_tidptr = child_tidptr;
3796 }
3797
3798 if (nptl_flags & CLONE_SETTLS)
3799 cpu_set_tls (new_env, newtls);
3800
3801 /* Grab a mutex so that thread setup appears atomic. */
3802 pthread_mutex_lock(&clone_lock);
3803
3804 memset(&info, 0, sizeof(info));
3805 pthread_mutex_init(&info.mutex, NULL);
3806 pthread_mutex_lock(&info.mutex);
3807 pthread_cond_init(&info.cond, NULL);
3808 info.env = new_env;
3809 if (nptl_flags & CLONE_CHILD_SETTID)
3810 info.child_tidptr = child_tidptr;
3811 if (nptl_flags & CLONE_PARENT_SETTID)
3812 info.parent_tidptr = parent_tidptr;
3813
3814 ret = pthread_attr_init(&attr);
3815 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
3816 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
3817 /* It is not safe to deliver signals until the child has finished
3818 initializing, so temporarily block all signals. */
3819 sigfillset(&sigmask);
3820 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
3821
3822 ret = pthread_create(&info.thread, &attr, clone_func, &info);
3823 /* TODO: Free new CPU state if thread creation failed. */
3824
3825 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
3826 pthread_attr_destroy(&attr);
3827 if (ret == 0) {
3828 /* Wait for the child to initialize. */
3829 pthread_cond_wait(&info.cond, &info.mutex);
3830 ret = info.tid;
3831 if (flags & CLONE_PARENT_SETTID)
3832 put_user_u32(ret, parent_tidptr);
3833 } else {
3834 ret = -1;
3835 }
3836 pthread_mutex_unlock(&info.mutex);
3837 pthread_cond_destroy(&info.cond);
3838 pthread_mutex_destroy(&info.mutex);
3839 pthread_mutex_unlock(&clone_lock);
3840 #else
3841 if (flags & CLONE_NPTL_FLAGS2)
3842 return -EINVAL;
3843 /* This is probably going to die very quickly, but do it anyway. */
3844 new_stack = qemu_mallocz (NEW_STACK_SIZE);
3845 #ifdef __ia64__
3846 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env);
3847 #else
3848 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
3849 #endif
3850 #endif
3851 } else {
3852 /* if no CLONE_VM, we consider it is a fork */
3853 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
3854 return -EINVAL;
3855 fork_start();
3856 ret = fork();
3857 if (ret == 0) {
3858 /* Child Process. */
3859 cpu_clone_regs(env, newsp);
3860 fork_end(1);
3861 #if defined(CONFIG_USE_NPTL)
3862 /* There is a race condition here. The parent process could
3863 theoretically read the TID in the child process before the child
3864 tid is set. This would require using either ptrace
3865 (not implemented) or having *_tidptr to point at a shared memory
3866 mapping. We can't repeat the spinlock hack used above because
3867 the child process gets its own copy of the lock. */
3868 if (flags & CLONE_CHILD_SETTID)
3869 put_user_u32(gettid(), child_tidptr);
3870 if (flags & CLONE_PARENT_SETTID)
3871 put_user_u32(gettid(), parent_tidptr);
3872 ts = (TaskState *)env->opaque;
3873 if (flags & CLONE_SETTLS)
3874 cpu_set_tls (env, newtls);
3875 if (flags & CLONE_CHILD_CLEARTID)
3876 ts->child_tidptr = child_tidptr;
3877 #endif
3878 } else {
3879 fork_end(0);
3880 }
3881 }
3882 return ret;
3883 }
3884
3885 /* warning : doesn't handle linux specific flags... */
3886 static int target_to_host_fcntl_cmd(int cmd)
3887 {
3888 switch(cmd) {
3889 case TARGET_F_DUPFD:
3890 case TARGET_F_GETFD:
3891 case TARGET_F_SETFD:
3892 case TARGET_F_GETFL:
3893 case TARGET_F_SETFL:
3894 return cmd;
3895 case TARGET_F_GETLK:
3896 return F_GETLK;
3897 case TARGET_F_SETLK:
3898 return F_SETLK;
3899 case TARGET_F_SETLKW:
3900 return F_SETLKW;
3901 case TARGET_F_GETOWN:
3902 return F_GETOWN;
3903 case TARGET_F_SETOWN:
3904 return F_SETOWN;
3905 case TARGET_F_GETSIG:
3906 return F_GETSIG;
3907 case TARGET_F_SETSIG:
3908 return F_SETSIG;
3909 #if TARGET_ABI_BITS == 32
3910 case TARGET_F_GETLK64:
3911 return F_GETLK64;
3912 case TARGET_F_SETLK64:
3913 return F_SETLK64;
3914 case TARGET_F_SETLKW64:
3915 return F_SETLKW64;
3916 #endif
3917 case TARGET_F_SETLEASE:
3918 return F_SETLEASE;
3919 case TARGET_F_GETLEASE:
3920 return F_GETLEASE;
3921 #ifdef F_DUPFD_CLOEXEC
3922 case TARGET_F_DUPFD_CLOEXEC:
3923 return F_DUPFD_CLOEXEC;
3924 #endif
3925 case TARGET_F_NOTIFY:
3926 return F_NOTIFY;
3927 default:
3928 return -TARGET_EINVAL;
3929 }
3930 return -TARGET_EINVAL;
3931 }
3932
3933 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
3934 {
3935 struct flock fl;
3936 struct target_flock *target_fl;
3937 struct flock64 fl64;
3938 struct target_flock64 *target_fl64;
3939 abi_long ret;
3940 int host_cmd = target_to_host_fcntl_cmd(cmd);
3941
3942 if (host_cmd == -TARGET_EINVAL)
3943 return host_cmd;
3944
3945 switch(cmd) {
3946 case TARGET_F_GETLK:
3947 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3948 return -TARGET_EFAULT;
3949 fl.l_type = tswap16(target_fl->l_type);
3950 fl.l_whence = tswap16(target_fl->l_whence);
3951 fl.l_start = tswapl(target_fl->l_start);
3952 fl.l_len = tswapl(target_fl->l_len);
3953 fl.l_pid = tswap32(target_fl->l_pid);
3954 unlock_user_struct(target_fl, arg, 0);
3955 ret = get_errno(fcntl(fd, host_cmd, &fl));
3956 if (ret == 0) {
3957 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
3958 return -TARGET_EFAULT;
3959 target_fl->l_type = tswap16(fl.l_type);
3960 target_fl->l_whence = tswap16(fl.l_whence);
3961 target_fl->l_start = tswapl(fl.l_start);
3962 target_fl->l_len = tswapl(fl.l_len);
3963 target_fl->l_pid = tswap32(fl.l_pid);
3964 unlock_user_struct(target_fl, arg, 1);
3965 }
3966 break;
3967
3968 case TARGET_F_SETLK:
3969 case TARGET_F_SETLKW:
3970 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
3971 return -TARGET_EFAULT;
3972 fl.l_type = tswap16(target_fl->l_type);
3973 fl.l_whence = tswap16(target_fl->l_whence);
3974 fl.l_start = tswapl(target_fl->l_start);
3975 fl.l_len = tswapl(target_fl->l_len);
3976 fl.l_pid = tswap32(target_fl->l_pid);
3977 unlock_user_struct(target_fl, arg, 0);
3978 ret = get_errno(fcntl(fd, host_cmd, &fl));
3979 break;
3980
3981 case TARGET_F_GETLK64:
3982 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
3983 return -TARGET_EFAULT;
3984 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
3985 fl64.l_whence = tswap16(target_fl64->l_whence);
3986 fl64.l_start = tswapl(target_fl64->l_start);
3987 fl64.l_len = tswapl(target_fl64->l_len);
3988 fl64.l_pid = tswap32(target_fl64->l_pid);
3989 unlock_user_struct(target_fl64, arg, 0);
3990 ret = get_errno(fcntl(fd, host_cmd, &fl64));
3991 if (ret == 0) {
3992 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
3993 return -TARGET_EFAULT;
3994 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
3995 target_fl64->l_whence = tswap16(fl64.l_whence);
3996 target_fl64->l_start = tswapl(fl64.l_start);
3997 target_fl64->l_len = tswapl(fl64.l_len);
3998 target_fl64->l_pid = tswap32(fl64.l_pid);
3999 unlock_user_struct(target_fl64, arg, 1);
4000 }
4001 break;
4002 case TARGET_F_SETLK64:
4003 case TARGET_F_SETLKW64:
4004 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4005 return -TARGET_EFAULT;
4006 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
4007 fl64.l_whence = tswap16(target_fl64->l_whence);
4008 fl64.l_start = tswapl(target_fl64->l_start);
4009 fl64.l_len = tswapl(target_fl64->l_len);
4010 fl64.l_pid = tswap32(target_fl64->l_pid);
4011 unlock_user_struct(target_fl64, arg, 0);
4012 ret = get_errno(fcntl(fd, host_cmd, &fl64));
4013 break;
4014
4015 case TARGET_F_GETFL:
4016 ret = get_errno(fcntl(fd, host_cmd, arg));
4017 if (ret >= 0) {
4018 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
4019 }
4020 break;
4021
4022 case TARGET_F_SETFL:
4023 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
4024 break;
4025
4026 case TARGET_F_SETOWN:
4027 case TARGET_F_GETOWN:
4028 case TARGET_F_SETSIG:
4029 case TARGET_F_GETSIG:
4030 case TARGET_F_SETLEASE:
4031 case TARGET_F_GETLEASE:
4032 ret = get_errno(fcntl(fd, host_cmd, arg));
4033 break;
4034
4035 default:
4036 ret = get_errno(fcntl(fd, cmd, arg));
4037 break;
4038 }
4039 return ret;
4040 }
4041
4042 #ifdef USE_UID16
4043
4044 static inline int high2lowuid(int uid)
4045 {
4046 if (uid > 65535)
4047 return 65534;
4048 else
4049 return uid;
4050 }
4051
4052 static inline int high2lowgid(int gid)
4053 {
4054 if (gid > 65535)
4055 return 65534;
4056 else
4057 return gid;
4058 }
4059
4060 static inline int low2highuid(int uid)
4061 {
4062 if ((int16_t)uid == -1)
4063 return -1;
4064 else
4065 return uid;
4066 }
4067
4068 static inline int low2highgid(int gid)
4069 {
4070 if ((int16_t)gid == -1)
4071 return -1;
4072 else
4073 return gid;
4074 }
4075
4076 #endif /* USE_UID16 */
4077
4078 void syscall_init(void)
4079 {
4080 IOCTLEntry *ie;
4081 const argtype *arg_type;
4082 int size;
4083 int i;
4084
4085 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
4086 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
4087 #include "syscall_types.h"
4088 #undef STRUCT
4089 #undef STRUCT_SPECIAL
4090
4091 /* we patch the ioctl size if necessary. We rely on the fact that
4092 no ioctl has all the bits at '1' in the size field */
4093 ie = ioctl_entries;
4094 while (ie->target_cmd != 0) {
4095 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4096 TARGET_IOC_SIZEMASK) {
4097 arg_type = ie->arg_type;
4098 if (arg_type[0] != TYPE_PTR) {
4099 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
4100 ie->target_cmd);
4101 exit(1);
4102 }
4103 arg_type++;
4104 size = thunk_type_size(arg_type, 0);
4105 ie->target_cmd = (ie->target_cmd &
4106 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4107 (size << TARGET_IOC_SIZESHIFT);
4108 }
4109
4110 /* Build target_to_host_errno_table[] table from
4111 * host_to_target_errno_table[]. */
4112 for (i=0; i < ERRNO_TABLE_SIZE; i++)
4113 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4114
4115 /* automatic consistency check if same arch */
4116 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4117 (defined(__x86_64__) && defined(TARGET_X86_64))
4118 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4119 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4120 ie->name, ie->target_cmd, ie->host_cmd);
4121 }
4122 #endif
4123 ie++;
4124 }
4125 }
4126
4127 #if TARGET_ABI_BITS == 32
4128 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4129 {
4130 #ifdef TARGET_WORDS_BIGENDIAN
4131 return ((uint64_t)word0 << 32) | word1;
4132 #else
4133 return ((uint64_t)word1 << 32) | word0;
4134 #endif
4135 }
4136 #else /* TARGET_ABI_BITS == 32 */
4137 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4138 {
4139 return word0;
4140 }
4141 #endif /* TARGET_ABI_BITS != 32 */
4142
4143 #ifdef TARGET_NR_truncate64
4144 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4145 abi_long arg2,
4146 abi_long arg3,
4147 abi_long arg4)
4148 {
4149 #ifdef TARGET_ARM
4150 if (((CPUARMState *)cpu_env)->eabi)
4151 {
4152 arg2 = arg3;
4153 arg3 = arg4;
4154 }
4155 #endif
4156 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4157 }
4158 #endif
4159
4160 #ifdef TARGET_NR_ftruncate64
4161 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4162 abi_long arg2,
4163 abi_long arg3,
4164 abi_long arg4)
4165 {
4166 #ifdef TARGET_ARM
4167 if (((CPUARMState *)cpu_env)->eabi)
4168 {
4169 arg2 = arg3;
4170 arg3 = arg4;
4171 }
4172 #endif
4173 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4174 }
4175 #endif
4176
4177 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4178 abi_ulong target_addr)
4179 {
4180 struct target_timespec *target_ts;
4181
4182 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4183 return -TARGET_EFAULT;
4184 host_ts->tv_sec = tswapl(target_ts->tv_sec);
4185 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
4186 unlock_user_struct(target_ts, target_addr, 0);
4187 return 0;
4188 }
4189
4190 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4191 struct timespec *host_ts)
4192 {
4193 struct target_timespec *target_ts;
4194
4195 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4196 return -TARGET_EFAULT;
4197 target_ts->tv_sec = tswapl(host_ts->tv_sec);
4198 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
4199 unlock_user_struct(target_ts, target_addr, 1);
4200 return 0;
4201 }
4202
4203 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
4204 static inline abi_long host_to_target_stat64(void *cpu_env,
4205 abi_ulong target_addr,
4206 struct stat *host_st)
4207 {
4208 #ifdef TARGET_ARM
4209 if (((CPUARMState *)cpu_env)->eabi) {
4210 struct target_eabi_stat64 *target_st;
4211
4212 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4213 return -TARGET_EFAULT;
4214 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4215 __put_user(host_st->st_dev, &target_st->st_dev);
4216 __put_user(host_st->st_ino, &target_st->st_ino);
4217 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4218 __put_user(host_st->st_ino, &target_st->__st_ino);
4219 #endif
4220 __put_user(host_st->st_mode, &target_st->st_mode);
4221 __put_user(host_st->st_nlink, &target_st->st_nlink);
4222 __put_user(host_st->st_uid, &target_st->st_uid);
4223 __put_user(host_st->st_gid, &target_st->st_gid);
4224 __put_user(host_st->st_rdev, &target_st->st_rdev);
4225 __put_user(host_st->st_size, &target_st->st_size);
4226 __put_user(host_st->st_blksize, &target_st->st_blksize);
4227 __put_user(host_st->st_blocks, &target_st->st_blocks);
4228 __put_user(host_st->st_atime, &target_st->target_st_atime);
4229 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4230 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4231 unlock_user_struct(target_st, target_addr, 1);
4232 } else
4233 #endif
4234 {
4235 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
4236 struct target_stat *target_st;
4237 #else
4238 struct target_stat64 *target_st;
4239 #endif
4240
4241 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4242 return -TARGET_EFAULT;
4243 memset(target_st, 0, sizeof(*target_st));
4244 __put_user(host_st->st_dev, &target_st->st_dev);
4245 __put_user(host_st->st_ino, &target_st->st_ino);
4246 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4247 __put_user(host_st->st_ino, &target_st->__st_ino);
4248 #endif
4249 __put_user(host_st->st_mode, &target_st->st_mode);
4250 __put_user(host_st->st_nlink, &target_st->st_nlink);
4251 __put_user(host_st->st_uid, &target_st->st_uid);
4252 __put_user(host_st->st_gid, &target_st->st_gid);
4253 __put_user(host_st->st_rdev, &target_st->st_rdev);
4254 /* XXX: better use of kernel struct */
4255 __put_user(host_st->st_size, &target_st->st_size);
4256 __put_user(host_st->st_blksize, &target_st->st_blksize);
4257 __put_user(host_st->st_blocks, &target_st->st_blocks);
4258 __put_user(host_st->st_atime, &target_st->target_st_atime);
4259 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4260 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4261 unlock_user_struct(target_st, target_addr, 1);
4262 }
4263
4264 return 0;
4265 }
4266 #endif
4267
4268 #if defined(CONFIG_USE_NPTL)
4269 /* ??? Using host futex calls even when target atomic operations
4270 are not really atomic probably breaks things. However implementing
4271 futexes locally would make futexes shared between multiple processes
4272 tricky. However they're probably useless because guest atomic
4273 operations won't work either. */
4274 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4275 target_ulong uaddr2, int val3)
4276 {
4277 struct timespec ts, *pts;
4278 int base_op;
4279
4280 /* ??? We assume FUTEX_* constants are the same on both host
4281 and target. */
4282 #ifdef FUTEX_CMD_MASK
4283 base_op = op & FUTEX_CMD_MASK;
4284 #else
4285 base_op = op;
4286 #endif
4287 switch (base_op) {
4288 case FUTEX_WAIT:
4289 if (timeout) {
4290 pts = &ts;
4291 target_to_host_timespec(pts, timeout);
4292 } else {
4293 pts = NULL;
4294 }
4295 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4296 pts, NULL, 0));
4297 case FUTEX_WAKE:
4298 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4299 case FUTEX_FD:
4300 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4301 case FUTEX_REQUEUE:
4302 case FUTEX_CMP_REQUEUE:
4303 case FUTEX_WAKE_OP:
4304 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4305 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4306 But the prototype takes a `struct timespec *'; insert casts
4307 to satisfy the compiler. We do not need to tswap TIMEOUT
4308 since it's not compared to guest memory. */
4309 pts = (struct timespec *)(uintptr_t) timeout;
4310 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4311 g2h(uaddr2),
4312 (base_op == FUTEX_CMP_REQUEUE
4313 ? tswap32(val3)
4314 : val3)));
4315 default:
4316 return -TARGET_ENOSYS;
4317 }
4318 }
4319 #endif
4320
4321 /* Map host to target signal numbers for the wait family of syscalls.
4322 Assume all other status bits are the same. */
4323 static int host_to_target_waitstatus(int status)
4324 {
4325 if (WIFSIGNALED(status)) {
4326 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4327 }
4328 if (WIFSTOPPED(status)) {
4329 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4330 | (status & 0xff);
4331 }
4332 return status;
4333 }
4334
4335 int get_osversion(void)
4336 {
4337 static int osversion;
4338 struct new_utsname buf;
4339 const char *s;
4340 int i, n, tmp;
4341 if (osversion)
4342 return osversion;
4343 if (qemu_uname_release && *qemu_uname_release) {
4344 s = qemu_uname_release;
4345 } else {
4346 if (sys_uname(&buf))
4347 return 0;
4348 s = buf.release;
4349 }
4350 tmp = 0;
4351 for (i = 0; i < 3; i++) {
4352 n = 0;
4353 while (*s >= '0' && *s <= '9') {
4354 n *= 10;
4355 n += *s - '0';
4356 s++;
4357 }
4358 tmp = (tmp << 8) + n;
4359 if (*s == '.')
4360 s++;
4361 }
4362 osversion = tmp;
4363 return osversion;
4364 }
4365
4366 /* do_syscall() should always have a single exit point at the end so
4367 that actions, such as logging of syscall results, can be performed.
4368 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
4369 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
4370 abi_long arg2, abi_long arg3, abi_long arg4,
4371 abi_long arg5, abi_long arg6)
4372 {
4373 abi_long ret;
4374 struct stat st;
4375 struct statfs stfs;
4376 void *p;
4377
4378 #ifdef DEBUG
4379 gemu_log("syscall %d", num);
4380 #endif
4381 if(do_strace)
4382 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
4383
4384 switch(num) {
4385 case TARGET_NR_exit:
4386 #ifdef CONFIG_USE_NPTL
4387 /* In old applications this may be used to implement _exit(2).
4388 However in threaded applictions it is used for thread termination,
4389 and _exit_group is used for application termination.
4390 Do thread termination if we have more then one thread. */
4391 /* FIXME: This probably breaks if a signal arrives. We should probably
4392 be disabling signals. */
4393 if (first_cpu->next_cpu) {
4394 TaskState *ts;
4395 CPUState **lastp;
4396 CPUState *p;
4397
4398 cpu_list_lock();
4399 lastp = &first_cpu;
4400 p = first_cpu;
4401 while (p && p != (CPUState *)cpu_env) {
4402 lastp = &p->next_cpu;
4403 p = p->next_cpu;
4404 }
4405 /* If we didn't find the CPU for this thread then something is
4406 horribly wrong. */
4407 if (!p)
4408 abort();
4409 /* Remove the CPU from the list. */
4410 *lastp = p->next_cpu;
4411 cpu_list_unlock();
4412 ts = ((CPUState *)cpu_env)->opaque;
4413 if (ts->child_tidptr) {
4414 put_user_u32(0, ts->child_tidptr);
4415 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
4416 NULL, NULL, 0);
4417 }
4418 thread_env = NULL;
4419 qemu_free(cpu_env);
4420 qemu_free(ts);
4421 pthread_exit(NULL);
4422 }
4423 #endif
4424 #ifdef TARGET_GPROF
4425 _mcleanup();
4426 #endif
4427 gdb_exit(cpu_env, arg1);
4428 _exit(arg1);
4429 ret = 0; /* avoid warning */
4430 break;
4431 case TARGET_NR_read:
4432 if (arg3 == 0)
4433 ret = 0;
4434 else {
4435 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4436 goto efault;
4437 ret = get_errno(read(arg1, p, arg3));
4438 unlock_user(p, arg2, ret);
4439 }
4440 break;
4441 case TARGET_NR_write:
4442 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4443 goto efault;
4444 ret = get_errno(write(arg1, p, arg3));
4445 unlock_user(p, arg2, 0);
4446 break;
4447 case TARGET_NR_open:
4448 if (!(p = lock_user_string(arg1)))
4449 goto efault;
4450 ret = get_errno(open(path(p),
4451 target_to_host_bitmask(arg2, fcntl_flags_tbl),
4452 arg3));
4453 unlock_user(p, arg1, 0);
4454 break;
4455 #if defined(TARGET_NR_openat) && defined(__NR_openat)
4456 case TARGET_NR_openat:
4457 if (!(p = lock_user_string(arg2)))
4458 goto efault;
4459 ret = get_errno(sys_openat(arg1,
4460 path(p),
4461 target_to_host_bitmask(arg3, fcntl_flags_tbl),
4462 arg4));
4463 unlock_user(p, arg2, 0);
4464 break;
4465 #endif
4466 case TARGET_NR_close:
4467 ret = get_errno(close(arg1));
4468 break;
4469 case TARGET_NR_brk:
4470 ret = do_brk(arg1);
4471 break;
4472 case TARGET_NR_fork:
4473 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
4474 break;
4475 #ifdef TARGET_NR_waitpid
4476 case TARGET_NR_waitpid:
4477 {
4478 int status;
4479 ret = get_errno(waitpid(arg1, &status, arg3));
4480 if (!is_error(ret) && arg2
4481 && put_user_s32(host_to_target_waitstatus(status), arg2))
4482 goto efault;
4483 }
4484 break;
4485 #endif
4486 #ifdef TARGET_NR_waitid
4487 case TARGET_NR_waitid:
4488 {
4489 siginfo_t info;
4490 info.si_pid = 0;
4491 ret = get_errno(waitid(arg1, arg2, &info, arg4));
4492 if (!is_error(ret) && arg3 && info.si_pid != 0) {
4493 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
4494 goto efault;
4495 host_to_target_siginfo(p, &info);
4496 unlock_user(p, arg3, sizeof(target_siginfo_t));
4497 }
4498 }
4499 break;
4500 #endif
4501 #ifdef TARGET_NR_creat /* not on alpha */
4502 case TARGET_NR_creat:
4503 if (!(p = lock_user_string(arg1)))
4504 goto efault;
4505 ret = get_errno(creat(p, arg2));
4506 unlock_user(p, arg1, 0);
4507 break;
4508 #endif
4509 case TARGET_NR_link:
4510 {
4511 void * p2;
4512 p = lock_user_string(arg1);
4513 p2 = lock_user_string(arg2);
4514 if (!p || !p2)
4515 ret = -TARGET_EFAULT;
4516 else
4517 ret = get_errno(link(p, p2));
4518 unlock_user(p2, arg2, 0);
4519 unlock_user(p, arg1, 0);
4520 }
4521 break;
4522 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
4523 case TARGET_NR_linkat:
4524 {
4525 void * p2 = NULL;
4526 if (!arg2 || !arg4)
4527 goto efault;
4528 p = lock_user_string(arg2);
4529 p2 = lock_user_string(arg4);
4530 if (!p || !p2)
4531 ret = -TARGET_EFAULT;
4532 else
4533 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
4534 unlock_user(p, arg2, 0);
4535 unlock_user(p2, arg4, 0);
4536 }
4537 break;
4538 #endif
4539 case TARGET_NR_unlink:
4540 if (!(p = lock_user_string(arg1)))
4541 goto efault;
4542 ret = get_errno(unlink(p));
4543 unlock_user(p, arg1, 0);
4544 break;
4545 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
4546 case TARGET_NR_unlinkat:
4547 if (!(p = lock_user_string(arg2)))
4548 goto efault;
4549 ret = get_errno(sys_unlinkat(arg1, p, arg3));
4550 unlock_user(p, arg2, 0);
4551 break;
4552 #endif
4553 case TARGET_NR_execve:
4554 {
4555 char **argp, **envp;
4556 int argc, envc;
4557 abi_ulong gp;
4558 abi_ulong guest_argp;
4559 abi_ulong guest_envp;
4560 abi_ulong addr;
4561 char **q;
4562
4563 argc = 0;
4564 guest_argp = arg2;
4565 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
4566 if (get_user_ual(addr, gp))
4567 goto efault;
4568 if (!addr)
4569 break;
4570 argc++;
4571 }
4572 envc = 0;
4573 guest_envp = arg3;
4574 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
4575 if (get_user_ual(addr, gp))
4576 goto efault;
4577 if (!addr)
4578 break;
4579 envc++;
4580 }
4581
4582 argp = alloca((argc + 1) * sizeof(void *));
4583 envp = alloca((envc + 1) * sizeof(void *));
4584
4585 for (gp = guest_argp, q = argp; gp;
4586 gp += sizeof(abi_ulong), q++) {
4587 if (get_user_ual(addr, gp))
4588 goto execve_efault;
4589 if (!addr)
4590 break;
4591 if (!(*q = lock_user_string(addr)))
4592 goto execve_efault;
4593 }
4594 *q = NULL;
4595
4596 for (gp = guest_envp, q = envp; gp;
4597 gp += sizeof(abi_ulong), q++) {
4598 if (get_user_ual(addr, gp))
4599 goto execve_efault;
4600 if (!addr)
4601 break;
4602 if (!(*q = lock_user_string(addr)))
4603 goto execve_efault;
4604 }
4605 *q = NULL;
4606
4607 if (!(p = lock_user_string(arg1)))
4608 goto execve_efault;
4609 ret = get_errno(execve(p, argp, envp));
4610 unlock_user(p, arg1, 0);
4611
4612 goto execve_end;
4613
4614 execve_efault:
4615 ret = -TARGET_EFAULT;
4616
4617 execve_end:
4618 for (gp = guest_argp, q = argp; *q;
4619 gp += sizeof(abi_ulong), q++) {
4620 if (get_user_ual(addr, gp)
4621 || !addr)
4622 break;
4623 unlock_user(*q, addr, 0);
4624 }
4625 for (gp = guest_envp, q = envp; *q;
4626 gp += sizeof(abi_ulong), q++) {
4627 if (get_user_ual(addr, gp)
4628 || !addr)
4629 break;
4630 unlock_user(*q, addr, 0);
4631 }
4632 }
4633 break;
4634 case TARGET_NR_chdir:
4635 if (!(p = lock_user_string(arg1)))
4636 goto efault;
4637 ret = get_errno(chdir(p));
4638 unlock_user(p, arg1, 0);
4639 break;
4640 #ifdef TARGET_NR_time
4641 case TARGET_NR_time:
4642 {
4643 time_t host_time;
4644 ret = get_errno(time(&host_time));
4645 if (!is_error(ret)
4646 && arg1
4647 && put_user_sal(host_time, arg1))
4648 goto efault;
4649 }
4650 break;
4651 #endif
4652 case TARGET_NR_mknod:
4653 if (!(p = lock_user_string(arg1)))
4654 goto efault;
4655 ret = get_errno(mknod(p, arg2, arg3));
4656 unlock_user(p, arg1, 0);
4657 break;
4658 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
4659 case TARGET_NR_mknodat:
4660 if (!(p = lock_user_string(arg2)))
4661 goto efault;
4662 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
4663 unlock_user(p, arg2, 0);
4664 break;
4665 #endif
4666 case TARGET_NR_chmod:
4667 if (!(p = lock_user_string(arg1)))
4668 goto efault;
4669 ret = get_errno(chmod(p, arg2));
4670 unlock_user(p, arg1, 0);
4671 break;
4672 #ifdef TARGET_NR_break
4673 case TARGET_NR_break:
4674 goto unimplemented;
4675 #endif
4676 #ifdef TARGET_NR_oldstat
4677 case TARGET_NR_oldstat:
4678 goto unimplemented;
4679 #endif
4680 case TARGET_NR_lseek:
4681 ret = get_errno(lseek(arg1, arg2, arg3));
4682 break;
4683 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
4684 /* Alpha specific */
4685 case TARGET_NR_getxpid:
4686 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
4687 ret = get_errno(getpid());
4688 break;
4689 #endif
4690 #ifdef TARGET_NR_getpid
4691 case TARGET_NR_getpid:
4692 ret = get_errno(getpid());
4693 break;
4694 #endif
4695 case TARGET_NR_mount:
4696 {
4697 /* need to look at the data field */
4698 void *p2, *p3;
4699 p = lock_user_string(arg1);
4700 p2 = lock_user_string(arg2);
4701 p3 = lock_user_string(arg3);
4702 if (!p || !p2 || !p3)
4703 ret = -TARGET_EFAULT;
4704 else {
4705 /* FIXME - arg5 should be locked, but it isn't clear how to
4706 * do that since it's not guaranteed to be a NULL-terminated
4707 * string.
4708 */
4709 if ( ! arg5 )
4710 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
4711 else
4712 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
4713 }
4714 unlock_user(p, arg1, 0);
4715 unlock_user(p2, arg2, 0);
4716 unlock_user(p3, arg3, 0);
4717 break;
4718 }
4719 #ifdef TARGET_NR_umount
4720 case TARGET_NR_umount:
4721 if (!(p = lock_user_string(arg1)))
4722 goto efault;
4723 ret = get_errno(umount(p));
4724 unlock_user(p, arg1, 0);
4725 break;
4726 #endif
4727 #ifdef TARGET_NR_stime /* not on alpha */
4728 case TARGET_NR_stime:
4729 {
4730 time_t host_time;
4731 if (get_user_sal(host_time, arg1))
4732 goto efault;
4733 ret = get_errno(stime(&host_time));
4734 }
4735 break;
4736 #endif
4737 case TARGET_NR_ptrace:
4738 goto unimplemented;
4739 #ifdef TARGET_NR_alarm /* not on alpha */
4740 case TARGET_NR_alarm:
4741 ret = alarm(arg1);
4742 break;
4743 #endif
4744 #ifdef TARGET_NR_oldfstat
4745 case TARGET_NR_oldfstat:
4746 goto unimplemented;
4747 #endif
4748 #ifdef TARGET_NR_pause /* not on alpha */
4749 case TARGET_NR_pause:
4750 ret = get_errno(pause());
4751 break;
4752 #endif
4753 #ifdef TARGET_NR_utime
4754 case TARGET_NR_utime:
4755 {
4756 struct utimbuf tbuf, *host_tbuf;
4757 struct target_utimbuf *target_tbuf;
4758 if (arg2) {
4759 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
4760 goto efault;
4761 tbuf.actime = tswapl(target_tbuf->actime);
4762 tbuf.modtime = tswapl(target_tbuf->modtime);
4763 unlock_user_struct(target_tbuf, arg2, 0);
4764 host_tbuf = &tbuf;
4765 } else {
4766 host_tbuf = NULL;
4767 }
4768 if (!(p = lock_user_string(arg1)))
4769 goto efault;
4770 ret = get_errno(utime(p, host_tbuf));
4771 unlock_user(p, arg1, 0);
4772 }
4773 break;
4774 #endif
4775 case TARGET_NR_utimes:
4776 {
4777 struct timeval *tvp, tv[2];
4778 if (arg2) {
4779 if (copy_from_user_timeval(&tv[0], arg2)
4780 || copy_from_user_timeval(&tv[1],
4781 arg2 + sizeof(struct target_timeval)))
4782 goto efault;
4783 tvp = tv;
4784 } else {
4785 tvp = NULL;
4786 }
4787 if (!(p = lock_user_string(arg1)))
4788 goto efault;
4789 ret = get_errno(utimes(p, tvp));
4790 unlock_user(p, arg1, 0);
4791 }
4792 break;
4793 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
4794 case TARGET_NR_futimesat:
4795 {
4796 struct timeval *tvp, tv[2];
4797 if (arg3) {
4798 if (copy_from_user_timeval(&tv[0], arg3)
4799 || copy_from_user_timeval(&tv[1],
4800 arg3 + sizeof(struct target_timeval)))
4801 goto efault;
4802 tvp = tv;
4803 } else {
4804 tvp = NULL;
4805 }
4806 if (!(p = lock_user_string(arg2)))
4807 goto efault;
4808 ret = get_errno(sys_futimesat(arg1, path(p), tvp));
4809 unlock_user(p, arg2, 0);
4810 }
4811 break;
4812 #endif
4813 #ifdef TARGET_NR_stty
4814 case TARGET_NR_stty:
4815 goto unimplemented;
4816 #endif
4817 #ifdef TARGET_NR_gtty
4818 case TARGET_NR_gtty:
4819 goto unimplemented;
4820 #endif
4821 case TARGET_NR_access:
4822 if (!(p = lock_user_string(arg1)))
4823 goto efault;
4824 ret = get_errno(access(path(p), arg2));
4825 unlock_user(p, arg1, 0);
4826 break;
4827 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
4828 case TARGET_NR_faccessat:
4829 if (!(p = lock_user_string(arg2)))
4830 goto efault;
4831 ret = get_errno(sys_faccessat(arg1, p, arg3));
4832 unlock_user(p, arg2, 0);
4833 break;
4834 #endif
4835 #ifdef TARGET_NR_nice /* not on alpha */
4836 case TARGET_NR_nice:
4837 ret = get_errno(nice(arg1));
4838 break;
4839 #endif
4840 #ifdef TARGET_NR_ftime
4841 case TARGET_NR_ftime:
4842 goto unimplemented;
4843 #endif
4844 case TARGET_NR_sync:
4845 sync();
4846 ret = 0;
4847 break;
4848 case TARGET_NR_kill:
4849 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
4850 break;
4851 case TARGET_NR_rename:
4852 {
4853 void *p2;
4854 p = lock_user_string(arg1);
4855 p2 = lock_user_string(arg2);
4856 if (!p || !p2)
4857 ret = -TARGET_EFAULT;
4858 else
4859 ret = get_errno(rename(p, p2));
4860 unlock_user(p2, arg2, 0);
4861 unlock_user(p, arg1, 0);
4862 }
4863 break;
4864 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
4865 case TARGET_NR_renameat:
4866 {
4867 void *p2;
4868 p = lock_user_string(arg2);
4869 p2 = lock_user_string(arg4);
4870 if (!p || !p2)
4871 ret = -TARGET_EFAULT;
4872 else
4873 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
4874 unlock_user(p2, arg4, 0);
4875 unlock_user(p, arg2, 0);
4876 }
4877 break;
4878 #endif
4879 case TARGET_NR_mkdir:
4880 if (!(p = lock_user_string(arg1)))
4881 goto efault;
4882 ret = get_errno(mkdir(p, arg2));
4883 unlock_user(p, arg1, 0);
4884 break;
4885 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
4886 case TARGET_NR_mkdirat:
4887 if (!(p = lock_user_string(arg2)))
4888 goto efault;
4889 ret = get_errno(sys_mkdirat(arg1, p, arg3));
4890 unlock_user(p, arg2, 0);
4891 break;
4892 #endif
4893 case TARGET_NR_rmdir:
4894 if (!(p = lock_user_string(arg1)))
4895 goto efault;
4896 ret = get_errno(rmdir(p));
4897 unlock_user(p, arg1, 0);
4898 break;
4899 case TARGET_NR_dup:
4900 ret = get_errno(dup(arg1));
4901 break;
4902 case TARGET_NR_pipe:
4903 ret = do_pipe(cpu_env, arg1, 0, 0);
4904 break;
4905 #ifdef TARGET_NR_pipe2
4906 case TARGET_NR_pipe2:
4907 ret = do_pipe(cpu_env, arg1, arg2, 1);
4908 break;
4909 #endif
4910 case TARGET_NR_times:
4911 {
4912 struct target_tms *tmsp;
4913 struct tms tms;
4914 ret = get_errno(times(&tms));
4915 if (arg1) {
4916 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
4917 if (!tmsp)
4918 goto efault;
4919 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
4920 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
4921 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
4922 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
4923 }
4924 if (!is_error(ret))
4925 ret = host_to_target_clock_t(ret);
4926 }
4927 break;
4928 #ifdef TARGET_NR_prof
4929 case TARGET_NR_prof:
4930 goto unimplemented;
4931 #endif
4932 #ifdef TARGET_NR_signal
4933 case TARGET_NR_signal:
4934 goto unimplemented;
4935 #endif
4936 case TARGET_NR_acct:
4937 if (arg1 == 0) {
4938 ret = get_errno(acct(NULL));
4939 } else {
4940 if (!(p = lock_user_string(arg1)))
4941 goto efault;
4942 ret = get_errno(acct(path(p)));
4943 unlock_user(p, arg1, 0);
4944 }
4945 break;
4946 #ifdef TARGET_NR_umount2 /* not on alpha */
4947 case TARGET_NR_umount2:
4948 if (!(p = lock_user_string(arg1)))
4949 goto efault;
4950 ret = get_errno(umount2(p, arg2));
4951 unlock_user(p, arg1, 0);
4952 break;
4953 #endif
4954 #ifdef TARGET_NR_lock
4955 case TARGET_NR_lock:
4956 goto unimplemented;
4957 #endif
4958 case TARGET_NR_ioctl:
4959 ret = do_ioctl(arg1, arg2, arg3);
4960 break;
4961 case TARGET_NR_fcntl:
4962 ret = do_fcntl(arg1, arg2, arg3);
4963 break;
4964 #ifdef TARGET_NR_mpx
4965 case TARGET_NR_mpx:
4966 goto unimplemented;
4967 #endif
4968 case TARGET_NR_setpgid:
4969 ret = get_errno(setpgid(arg1, arg2));
4970 break;
4971 #ifdef TARGET_NR_ulimit
4972 case TARGET_NR_ulimit:
4973 goto unimplemented;
4974 #endif
4975 #ifdef TARGET_NR_oldolduname
4976 case TARGET_NR_oldolduname:
4977 goto unimplemented;
4978 #endif
4979 case TARGET_NR_umask:
4980 ret = get_errno(umask(arg1));
4981 break;
4982 case TARGET_NR_chroot:
4983 if (!(p = lock_user_string(arg1)))
4984 goto efault;
4985 ret = get_errno(chroot(p));
4986 unlock_user(p, arg1, 0);
4987 break;
4988 case TARGET_NR_ustat:
4989 goto unimplemented;
4990 case TARGET_NR_dup2:
4991 ret = get_errno(dup2(arg1, arg2));
4992 break;
4993 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
4994 case TARGET_NR_dup3:
4995 ret = get_errno(dup3(arg1, arg2, arg3));
4996 break;
4997 #endif
4998 #ifdef TARGET_NR_getppid /* not on alpha */
4999 case TARGET_NR_getppid:
5000 ret = get_errno(getppid());
5001 break;
5002 #endif
5003 case TARGET_NR_getpgrp:
5004 ret = get_errno(getpgrp());
5005 break;
5006 case TARGET_NR_setsid:
5007 ret = get_errno(setsid());
5008 break;
5009 #ifdef TARGET_NR_sigaction
5010 case TARGET_NR_sigaction:
5011 {
5012 #if defined(TARGET_ALPHA)
5013 struct target_sigaction act, oact, *pact = 0;
5014 struct target_old_sigaction *old_act;
5015 if (arg2) {
5016 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5017 goto efault;
5018 act._sa_handler = old_act->_sa_handler;
5019 target_siginitset(&act.sa_mask, old_act->sa_mask);
5020 act.sa_flags = old_act->sa_flags;
5021 act.sa_restorer = 0;
5022 unlock_user_struct(old_act, arg2, 0);
5023 pact = &act;
5024 }
5025 ret = get_errno(do_sigaction(arg1, pact, &oact));
5026 if (!is_error(ret) && arg3) {
5027 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5028 goto efault;
5029 old_act->_sa_handler = oact._sa_handler;
5030 old_act->sa_mask = oact.sa_mask.sig[0];
5031 old_act->sa_flags = oact.sa_flags;
5032 unlock_user_struct(old_act, arg3, 1);
5033 }
5034 #elif defined(TARGET_MIPS)
5035 struct target_sigaction act, oact, *pact, *old_act;
5036
5037 if (arg2) {
5038 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5039 goto efault;
5040 act._sa_handler = old_act->_sa_handler;
5041 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5042 act.sa_flags = old_act->sa_flags;
5043 unlock_user_struct(old_act, arg2, 0);
5044 pact = &act;
5045 } else {
5046 pact = NULL;
5047 }
5048
5049 ret = get_errno(do_sigaction(arg1, pact, &oact));
5050
5051 if (!is_error(ret) && arg3) {
5052 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5053 goto efault;
5054 old_act->_sa_handler = oact._sa_handler;
5055 old_act->sa_flags = oact.sa_flags;
5056 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5057 old_act->sa_mask.sig[1] = 0;
5058 old_act->sa_mask.sig[2] = 0;
5059 old_act->sa_mask.sig[3] = 0;
5060 unlock_user_struct(old_act, arg3, 1);
5061 }
5062 #else
5063 struct target_old_sigaction *old_act;
5064 struct target_sigaction act, oact, *pact;
5065 if (arg2) {
5066 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5067 goto efault;
5068 act._sa_handler = old_act->_sa_handler;
5069 target_siginitset(&act.sa_mask, old_act->sa_mask);
5070 act.sa_flags = old_act->sa_flags;
5071 act.sa_restorer = old_act->sa_restorer;
5072 unlock_user_struct(old_act, arg2, 0);
5073 pact = &act;
5074 } else {
5075 pact = NULL;
5076 }
5077 ret = get_errno(do_sigaction(arg1, pact, &oact));
5078 if (!is_error(ret) && arg3) {
5079 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5080 goto efault;
5081 old_act->_sa_handler = oact._sa_handler;
5082 old_act->sa_mask = oact.sa_mask.sig[0];
5083 old_act->sa_flags = oact.sa_flags;
5084 old_act->sa_restorer = oact.sa_restorer;
5085 unlock_user_struct(old_act, arg3, 1);
5086 }
5087 #endif
5088 }
5089 break;
5090 #endif
5091 case TARGET_NR_rt_sigaction:
5092 {
5093 #if defined(TARGET_ALPHA)
5094 struct target_sigaction act, oact, *pact = 0;
5095 struct target_rt_sigaction *rt_act;
5096 /* ??? arg4 == sizeof(sigset_t). */
5097 if (arg2) {
5098 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5099 goto efault;
5100 act._sa_handler = rt_act->_sa_handler;
5101 act.sa_mask = rt_act->sa_mask;
5102 act.sa_flags = rt_act->sa_flags;
5103 act.sa_restorer = arg5;
5104 unlock_user_struct(rt_act, arg2, 0);
5105 pact = &act;
5106 }
5107 ret = get_errno(do_sigaction(arg1, pact, &oact));
5108 if (!is_error(ret) && arg3) {
5109 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5110 goto efault;
5111 rt_act->_sa_handler = oact._sa_handler;
5112 rt_act->sa_mask = oact.sa_mask;
5113 rt_act->sa_flags = oact.sa_flags;
5114 unlock_user_struct(rt_act, arg3, 1);
5115 }
5116 #else
5117 struct target_sigaction *act;
5118 struct target_sigaction *oact;
5119
5120 if (arg2) {
5121 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5122 goto efault;
5123 } else
5124 act = NULL;
5125 if (arg3) {
5126 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5127 ret = -TARGET_EFAULT;
5128 goto rt_sigaction_fail;
5129 }
5130 } else
5131 oact = NULL;
5132 ret = get_errno(do_sigaction(arg1, act, oact));
5133 rt_sigaction_fail:
5134 if (act)
5135 unlock_user_struct(act, arg2, 0);
5136 if (oact)
5137 unlock_user_struct(oact, arg3, 1);
5138 #endif
5139 }
5140 break;
5141 #ifdef TARGET_NR_sgetmask /* not on alpha */
5142 case TARGET_NR_sgetmask:
5143 {
5144 sigset_t cur_set;
5145 abi_ulong target_set;
5146 sigprocmask(0, NULL, &cur_set);
5147 host_to_target_old_sigset(&target_set, &cur_set);
5148 ret = target_set;
5149 }
5150 break;
5151 #endif
5152 #ifdef TARGET_NR_ssetmask /* not on alpha */
5153 case TARGET_NR_ssetmask:
5154 {
5155 sigset_t set, oset, cur_set;
5156 abi_ulong target_set = arg1;
5157 sigprocmask(0, NULL, &cur_set);
5158 target_to_host_old_sigset(&set, &target_set);
5159 sigorset(&set, &set, &cur_set);
5160 sigprocmask(SIG_SETMASK, &set, &oset);
5161 host_to_target_old_sigset(&target_set, &oset);
5162 ret = target_set;
5163 }
5164 break;
5165 #endif
5166 #ifdef TARGET_NR_sigprocmask
5167 case TARGET_NR_sigprocmask:
5168 {
5169 #if defined(TARGET_ALPHA)
5170 sigset_t set, oldset;
5171 abi_ulong mask;
5172 int how;
5173
5174 switch (arg1) {
5175 case TARGET_SIG_BLOCK:
5176 how = SIG_BLOCK;
5177 break;
5178 case TARGET_SIG_UNBLOCK:
5179 how = SIG_UNBLOCK;
5180 break;
5181 case TARGET_SIG_SETMASK:
5182 how = SIG_SETMASK;
5183 break;
5184 default:
5185 ret = -TARGET_EINVAL;
5186 goto fail;
5187 }
5188 mask = arg2;
5189 target_to_host_old_sigset(&set, &mask);
5190
5191 ret = get_errno(sigprocmask(how, &set, &oldset));
5192
5193 if (!is_error(ret)) {
5194 host_to_target_old_sigset(&mask, &oldset);
5195 ret = mask;
5196 ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */
5197 }
5198 #else
5199 sigset_t set, oldset, *set_ptr;
5200 int how;
5201
5202 if (arg2) {
5203 switch (arg1) {
5204 case TARGET_SIG_BLOCK:
5205 how = SIG_BLOCK;
5206 break;
5207 case TARGET_SIG_UNBLOCK:
5208 how = SIG_UNBLOCK;
5209 break;
5210 case TARGET_SIG_SETMASK:
5211 how = SIG_SETMASK;
5212 break;
5213 default:
5214 ret = -TARGET_EINVAL;
5215 goto fail;
5216 }
5217 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5218 goto efault;
5219 target_to_host_old_sigset(&set, p);
5220 unlock_user(p, arg2, 0);
5221 set_ptr = &set;
5222 } else {
5223 how = 0;
5224 set_ptr = NULL;
5225 }
5226 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5227 if (!is_error(ret) && arg3) {
5228 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5229 goto efault;
5230 host_to_target_old_sigset(p, &oldset);
5231 unlock_user(p, arg3, sizeof(target_sigset_t));
5232 }
5233 #endif
5234 }
5235 break;
5236 #endif
5237 case TARGET_NR_rt_sigprocmask:
5238 {
5239 int how = arg1;
5240 sigset_t set, oldset, *set_ptr;
5241
5242 if (arg2) {
5243 switch(how) {
5244 case TARGET_SIG_BLOCK:
5245 how = SIG_BLOCK;
5246 break;
5247 case TARGET_SIG_UNBLOCK:
5248 how = SIG_UNBLOCK;
5249 break;
5250 case TARGET_SIG_SETMASK:
5251 how = SIG_SETMASK;
5252 break;
5253 default:
5254 ret = -TARGET_EINVAL;
5255 goto fail;
5256 }
5257 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5258 goto efault;
5259 target_to_host_sigset(&set, p);
5260 unlock_user(p, arg2, 0);
5261 set_ptr = &set;
5262 } else {
5263 how = 0;
5264 set_ptr = NULL;
5265 }
5266 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5267 if (!is_error(ret) && arg3) {
5268 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5269 goto efault;
5270 host_to_target_sigset(p, &oldset);
5271 unlock_user(p, arg3, sizeof(target_sigset_t));
5272 }
5273 }
5274 break;
5275 #ifdef TARGET_NR_sigpending
5276 case TARGET_NR_sigpending:
5277 {
5278 sigset_t set;
5279 ret = get_errno(sigpending(&set));
5280 if (!is_error(ret)) {
5281 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5282 goto efault;
5283 host_to_target_old_sigset(p, &set);
5284 unlock_user(p, arg1, sizeof(target_sigset_t));
5285 }
5286 }
5287 break;
5288 #endif
5289 case TARGET_NR_rt_sigpending:
5290 {
5291 sigset_t set;
5292 ret = get_errno(sigpending(&set));
5293 if (!is_error(ret)) {
5294 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
5295 goto efault;
5296 host_to_target_sigset(p, &set);
5297 unlock_user(p, arg1, sizeof(target_sigset_t));
5298 }
5299 }
5300 break;
5301 #ifdef TARGET_NR_sigsuspend
5302 case TARGET_NR_sigsuspend:
5303 {
5304 sigset_t set;
5305 #if defined(TARGET_ALPHA)
5306 abi_ulong mask = arg1;
5307 target_to_host_old_sigset(&set, &mask);
5308 #else
5309 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5310 goto efault;
5311 target_to_host_old_sigset(&set, p);
5312 unlock_user(p, arg1, 0);
5313 #endif
5314 ret = get_errno(sigsuspend(&set));
5315 }
5316 break;
5317 #endif
5318 case TARGET_NR_rt_sigsuspend:
5319 {
5320 sigset_t set;
5321 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5322 goto efault;
5323 target_to_host_sigset(&set, p);
5324 unlock_user(p, arg1, 0);
5325 ret = get_errno(sigsuspend(&set));
5326 }
5327 break;
5328 case TARGET_NR_rt_sigtimedwait:
5329 {
5330 sigset_t set;
5331 struct timespec uts, *puts;
5332 siginfo_t uinfo;
5333
5334 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
5335 goto efault;
5336 target_to_host_sigset(&set, p);
5337 unlock_user(p, arg1, 0);
5338 if (arg3) {
5339 puts = &uts;
5340 target_to_host_timespec(puts, arg3);
5341 } else {
5342 puts = NULL;
5343 }
5344 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
5345 if (!is_error(ret) && arg2) {
5346 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
5347 goto efault;
5348 host_to_target_siginfo(p, &uinfo);
5349 unlock_user(p, arg2, sizeof(target_siginfo_t));
5350 }
5351 }
5352 break;
5353 case TARGET_NR_rt_sigqueueinfo:
5354 {
5355 siginfo_t uinfo;
5356 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
5357 goto efault;
5358 target_to_host_siginfo(&uinfo, p);
5359 unlock_user(p, arg1, 0);
5360 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
5361 }
5362 break;
5363 #ifdef TARGET_NR_sigreturn
5364 case TARGET_NR_sigreturn:
5365 /* NOTE: ret is eax, so not transcoding must be done */
5366 ret = do_sigreturn(cpu_env);
5367 break;
5368 #endif
5369 case TARGET_NR_rt_sigreturn:
5370 /* NOTE: ret is eax, so not transcoding must be done */
5371 ret = do_rt_sigreturn(cpu_env);
5372 break;
5373 case TARGET_NR_sethostname:
5374 if (!(p = lock_user_string(arg1)))
5375 goto efault;
5376 ret = get_errno(sethostname(p, arg2));
5377 unlock_user(p, arg1, 0);
5378 break;
5379 case TARGET_NR_setrlimit:
5380 {
5381 int resource = arg1;
5382 struct target_rlimit *target_rlim;
5383 struct rlimit rlim;
5384 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
5385 goto efault;
5386 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
5387 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
5388 unlock_user_struct(target_rlim, arg2, 0);
5389 ret = get_errno(setrlimit(resource, &rlim));
5390 }
5391 break;
5392 case TARGET_NR_getrlimit:
5393 {
5394 int resource = arg1;
5395 struct target_rlimit *target_rlim;
5396 struct rlimit rlim;
5397
5398 ret = get_errno(getrlimit(resource, &rlim));
5399 if (!is_error(ret)) {
5400 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
5401 goto efault;
5402 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
5403 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
5404 unlock_user_struct(target_rlim, arg2, 1);
5405 }
5406 }
5407 break;
5408 case TARGET_NR_getrusage:
5409 {
5410 struct rusage rusage;
5411 ret = get_errno(getrusage(arg1, &rusage));
5412 if (!is_error(ret)) {
5413 host_to_target_rusage(arg2, &rusage);
5414 }
5415 }
5416 break;
5417 case TARGET_NR_gettimeofday:
5418 {
5419 struct timeval tv;
5420 ret = get_errno(gettimeofday(&tv, NULL));
5421 if (!is_error(ret)) {
5422 if (copy_to_user_timeval(arg1, &tv))
5423 goto efault;
5424 }
5425 }
5426 break;
5427 case TARGET_NR_settimeofday:
5428 {
5429 struct timeval tv;
5430 if (copy_from_user_timeval(&tv, arg1))
5431 goto efault;
5432 ret = get_errno(settimeofday(&tv, NULL));
5433 }
5434 break;
5435 #ifdef TARGET_NR_select
5436 case TARGET_NR_select:
5437 {
5438 struct target_sel_arg_struct *sel;
5439 abi_ulong inp, outp, exp, tvp;
5440 long nsel;
5441
5442 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
5443 goto efault;
5444 nsel = tswapl(sel->n);
5445 inp = tswapl(sel->inp);
5446 outp = tswapl(sel->outp);
5447 exp = tswapl(sel->exp);
5448 tvp = tswapl(sel->tvp);
5449 unlock_user_struct(sel, arg1, 0);
5450 ret = do_select(nsel, inp, outp, exp, tvp);
5451 }
5452 break;
5453 #endif
5454 #ifdef TARGET_NR_pselect6
5455 case TARGET_NR_pselect6:
5456 goto unimplemented_nowarn;
5457 #endif
5458 case TARGET_NR_symlink:
5459 {
5460 void *p2;
5461 p = lock_user_string(arg1);
5462 p2 = lock_user_string(arg2);
5463 if (!p || !p2)
5464 ret = -TARGET_EFAULT;
5465 else
5466 ret = get_errno(symlink(p, p2));
5467 unlock_user(p2, arg2, 0);
5468 unlock_user(p, arg1, 0);
5469 }
5470 break;
5471 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
5472 case TARGET_NR_symlinkat:
5473 {
5474 void *p2;
5475 p = lock_user_string(arg1);
5476 p2 = lock_user_string(arg3);
5477 if (!p || !p2)
5478 ret = -TARGET_EFAULT;
5479 else
5480 ret = get_errno(sys_symlinkat(p, arg2, p2));
5481 unlock_user(p2, arg3, 0);
5482 unlock_user(p, arg1, 0);
5483 }
5484 break;
5485 #endif
5486 #ifdef TARGET_NR_oldlstat
5487 case TARGET_NR_oldlstat:
5488 goto unimplemented;
5489 #endif
5490 case TARGET_NR_readlink:
5491 {
5492 void *p2, *temp;
5493 p = lock_user_string(arg1);
5494 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
5495 if (!p || !p2)
5496 ret = -TARGET_EFAULT;
5497 else {
5498 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) {
5499 char real[PATH_MAX];
5500 temp = realpath(exec_path,real);
5501 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ;
5502 snprintf((char *)p2, arg3, "%s", real);
5503 }
5504 else
5505 ret = get_errno(readlink(path(p), p2, arg3));
5506 }
5507 unlock_user(p2, arg2, ret);
5508 unlock_user(p, arg1, 0);
5509 }
5510 break;
5511 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
5512 case TARGET_NR_readlinkat:
5513 {
5514 void *p2;
5515 p = lock_user_string(arg2);
5516 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
5517 if (!p || !p2)
5518 ret = -TARGET_EFAULT;
5519 else
5520 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
5521 unlock_user(p2, arg3, ret);
5522 unlock_user(p, arg2, 0);
5523 }
5524 break;
5525 #endif
5526 #ifdef TARGET_NR_uselib
5527 case TARGET_NR_uselib:
5528 goto unimplemented;
5529 #endif
5530 #ifdef TARGET_NR_swapon
5531 case TARGET_NR_swapon:
5532 if (!(p = lock_user_string(arg1)))
5533 goto efault;
5534 ret = get_errno(swapon(p, arg2));
5535 unlock_user(p, arg1, 0);
5536 break;
5537 #endif
5538 case TARGET_NR_reboot:
5539 goto unimplemented;
5540 #ifdef TARGET_NR_readdir
5541 case TARGET_NR_readdir:
5542 goto unimplemented;
5543 #endif
5544 #ifdef TARGET_NR_mmap
5545 case TARGET_NR_mmap:
5546 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE)
5547 {
5548 abi_ulong *v;
5549 abi_ulong v1, v2, v3, v4, v5, v6;
5550 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
5551 goto efault;
5552 v1 = tswapl(v[0]);
5553 v2 = tswapl(v[1]);
5554 v3 = tswapl(v[2]);
5555 v4 = tswapl(v[3]);
5556 v5 = tswapl(v[4]);
5557 v6 = tswapl(v[5]);
5558 unlock_user(v, arg1, 0);
5559 ret = get_errno(target_mmap(v1, v2, v3,
5560 target_to_host_bitmask(v4, mmap_flags_tbl),
5561 v5, v6));
5562 }
5563 #else
5564 ret = get_errno(target_mmap(arg1, arg2, arg3,
5565 target_to_host_bitmask(arg4, mmap_flags_tbl),
5566 arg5,
5567 arg6));
5568 #endif
5569 break;
5570 #endif
5571 #ifdef TARGET_NR_mmap2
5572 case TARGET_NR_mmap2:
5573 #ifndef MMAP_SHIFT
5574 #define MMAP_SHIFT 12
5575 #endif
5576 ret = get_errno(target_mmap(arg1, arg2, arg3,
5577 target_to_host_bitmask(arg4, mmap_flags_tbl),
5578 arg5,
5579 arg6 << MMAP_SHIFT));
5580 break;
5581 #endif
5582 case TARGET_NR_munmap:
5583 ret = get_errno(target_munmap(arg1, arg2));
5584 break;
5585 case TARGET_NR_mprotect:
5586 {
5587 TaskState *ts = ((CPUState *)cpu_env)->opaque;
5588 /* Special hack to detect libc making the stack executable. */
5589 if ((arg3 & PROT_GROWSDOWN)
5590 && arg1 >= ts->info->stack_limit
5591 && arg1 <= ts->info->start_stack) {
5592 arg3 &= ~PROT_GROWSDOWN;
5593 arg2 = arg2 + arg1 - ts->info->stack_limit;
5594 arg1 = ts->info->stack_limit;
5595 }
5596 }
5597 ret = get_errno(target_mprotect(arg1, arg2, arg3));
5598 break;
5599 #ifdef TARGET_NR_mremap
5600 case TARGET_NR_mremap:
5601 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
5602 break;
5603 #endif
5604 /* ??? msync/mlock/munlock are broken for softmmu. */
5605 #ifdef TARGET_NR_msync
5606 case TARGET_NR_msync:
5607 ret = get_errno(msync(g2h(arg1), arg2, arg3));
5608 break;
5609 #endif
5610 #ifdef TARGET_NR_mlock
5611 case TARGET_NR_mlock:
5612 ret = get_errno(mlock(g2h(arg1), arg2));
5613 break;
5614 #endif
5615 #ifdef TARGET_NR_munlock
5616 case TARGET_NR_munlock:
5617 ret = get_errno(munlock(g2h(arg1), arg2));
5618 break;
5619 #endif
5620 #ifdef TARGET_NR_mlockall
5621 case TARGET_NR_mlockall:
5622 ret = get_errno(mlockall(arg1));
5623 break;
5624 #endif
5625 #ifdef TARGET_NR_munlockall
5626 case TARGET_NR_munlockall:
5627 ret = get_errno(munlockall());
5628 break;
5629 #endif
5630 case TARGET_NR_truncate:
5631 if (!(p = lock_user_string(arg1)))
5632 goto efault;
5633 ret = get_errno(truncate(p, arg2));
5634 unlock_user(p, arg1, 0);
5635 break;
5636 case TARGET_NR_ftruncate:
5637 ret = get_errno(ftruncate(arg1, arg2));
5638 break;
5639 case TARGET_NR_fchmod:
5640 ret = get_errno(fchmod(arg1, arg2));
5641 break;
5642 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
5643 case TARGET_NR_fchmodat:
5644 if (!(p = lock_user_string(arg2)))
5645 goto efault;
5646 ret = get_errno(sys_fchmodat(arg1, p, arg3));
5647 unlock_user(p, arg2, 0);
5648 break;
5649 #endif
5650 case TARGET_NR_getpriority:
5651 /* libc does special remapping of the return value of
5652 * sys_getpriority() so it's just easiest to call
5653 * sys_getpriority() directly rather than through libc. */
5654 ret = get_errno(sys_getpriority(arg1, arg2));
5655 break;
5656 case TARGET_NR_setpriority:
5657 ret = get_errno(setpriority(arg1, arg2, arg3));
5658 break;
5659 #ifdef TARGET_NR_profil
5660 case TARGET_NR_profil:
5661 goto unimplemented;
5662 #endif
5663 case TARGET_NR_statfs:
5664 if (!(p = lock_user_string(arg1)))
5665 goto efault;
5666 ret = get_errno(statfs(path(p), &stfs));
5667 unlock_user(p, arg1, 0);
5668 convert_statfs:
5669 if (!is_error(ret)) {
5670 struct target_statfs *target_stfs;
5671
5672 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
5673 goto efault;
5674 __put_user(stfs.f_type, &target_stfs->f_type);
5675 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5676 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5677 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5678 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5679 __put_user(stfs.f_files, &target_stfs->f_files);
5680 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5681 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5682 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5683 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5684 unlock_user_struct(target_stfs, arg2, 1);
5685 }
5686 break;
5687 case TARGET_NR_fstatfs:
5688 ret = get_errno(fstatfs(arg1, &stfs));
5689 goto convert_statfs;
5690 #ifdef TARGET_NR_statfs64
5691 case TARGET_NR_statfs64:
5692 if (!(p = lock_user_string(arg1)))
5693 goto efault;
5694 ret = get_errno(statfs(path(p), &stfs));
5695 unlock_user(p, arg1, 0);
5696 convert_statfs64:
5697 if (!is_error(ret)) {
5698 struct target_statfs64 *target_stfs;
5699
5700 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
5701 goto efault;
5702 __put_user(stfs.f_type, &target_stfs->f_type);
5703 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
5704 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
5705 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
5706 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
5707 __put_user(stfs.f_files, &target_stfs->f_files);
5708 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
5709 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
5710 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
5711 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
5712 unlock_user_struct(target_stfs, arg3, 1);
5713 }
5714 break;
5715 case TARGET_NR_fstatfs64:
5716 ret = get_errno(fstatfs(arg1, &stfs));
5717 goto convert_statfs64;
5718 #endif
5719 #ifdef TARGET_NR_ioperm
5720 case TARGET_NR_ioperm:
5721 goto unimplemented;
5722 #endif
5723 #ifdef TARGET_NR_socketcall
5724 case TARGET_NR_socketcall:
5725 ret = do_socketcall(arg1, arg2);
5726 break;
5727 #endif
5728 #ifdef TARGET_NR_accept
5729 case TARGET_NR_accept:
5730 ret = do_accept(arg1, arg2, arg3);
5731 break;
5732 #endif
5733 #ifdef TARGET_NR_bind
5734 case TARGET_NR_bind:
5735 ret = do_bind(arg1, arg2, arg3);
5736 break;
5737 #endif
5738 #ifdef TARGET_NR_connect
5739 case TARGET_NR_connect:
5740 ret = do_connect(arg1, arg2, arg3);
5741 break;
5742 #endif
5743 #ifdef TARGET_NR_getpeername
5744 case TARGET_NR_getpeername:
5745 ret = do_getpeername(arg1, arg2, arg3);
5746 break;
5747 #endif
5748 #ifdef TARGET_NR_getsockname
5749 case TARGET_NR_getsockname:
5750 ret = do_getsockname(arg1, arg2, arg3);
5751 break;
5752 #endif
5753 #ifdef TARGET_NR_getsockopt
5754 case TARGET_NR_getsockopt:
5755 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
5756 break;
5757 #endif
5758 #ifdef TARGET_NR_listen
5759 case TARGET_NR_listen:
5760 ret = get_errno(listen(arg1, arg2));
5761 break;
5762 #endif
5763 #ifdef TARGET_NR_recv
5764 case TARGET_NR_recv:
5765 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
5766 break;
5767 #endif
5768 #ifdef TARGET_NR_recvfrom
5769 case TARGET_NR_recvfrom:
5770 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
5771 break;
5772 #endif
5773 #ifdef TARGET_NR_recvmsg
5774 case TARGET_NR_recvmsg:
5775 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
5776 break;
5777 #endif
5778 #ifdef TARGET_NR_send
5779 case TARGET_NR_send:
5780 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
5781 break;
5782 #endif
5783 #ifdef TARGET_NR_sendmsg
5784 case TARGET_NR_sendmsg:
5785 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
5786 break;
5787 #endif
5788 #ifdef TARGET_NR_sendto
5789 case TARGET_NR_sendto:
5790 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
5791 break;
5792 #endif
5793 #ifdef TARGET_NR_shutdown
5794 case TARGET_NR_shutdown:
5795 ret = get_errno(shutdown(arg1, arg2));
5796 break;
5797 #endif
5798 #ifdef TARGET_NR_socket
5799 case TARGET_NR_socket:
5800 ret = do_socket(arg1, arg2, arg3);
5801 break;
5802 #endif
5803 #ifdef TARGET_NR_socketpair
5804 case TARGET_NR_socketpair:
5805 ret = do_socketpair(arg1, arg2, arg3, arg4);
5806 break;
5807 #endif
5808 #ifdef TARGET_NR_setsockopt
5809 case TARGET_NR_setsockopt:
5810 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
5811 break;
5812 #endif
5813
5814 case TARGET_NR_syslog:
5815 if (!(p = lock_user_string(arg2)))
5816 goto efault;
5817 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
5818 unlock_user(p, arg2, 0);
5819 break;
5820
5821 case TARGET_NR_setitimer:
5822 {
5823 struct itimerval value, ovalue, *pvalue;
5824
5825 if (arg2) {
5826 pvalue = &value;
5827 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
5828 || copy_from_user_timeval(&pvalue->it_value,
5829 arg2 + sizeof(struct target_timeval)))
5830 goto efault;
5831 } else {
5832 pvalue = NULL;
5833 }
5834 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
5835 if (!is_error(ret) && arg3) {
5836 if (copy_to_user_timeval(arg3,
5837 &ovalue.it_interval)
5838 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
5839 &ovalue.it_value))
5840 goto efault;
5841 }
5842 }
5843 break;
5844 case TARGET_NR_getitimer:
5845 {
5846 struct itimerval value;
5847
5848 ret = get_errno(getitimer(arg1, &value));
5849 if (!is_error(ret) && arg2) {
5850 if (copy_to_user_timeval(arg2,
5851 &value.it_interval)
5852 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
5853 &value.it_value))
5854 goto efault;
5855 }
5856 }
5857 break;
5858 case TARGET_NR_stat:
5859 if (!(p = lock_user_string(arg1)))
5860 goto efault;
5861 ret = get_errno(stat(path(p), &st));
5862 unlock_user(p, arg1, 0);
5863 goto do_stat;
5864 case TARGET_NR_lstat:
5865 if (!(p = lock_user_string(arg1)))
5866 goto efault;
5867 ret = get_errno(lstat(path(p), &st));
5868 unlock_user(p, arg1, 0);
5869 goto do_stat;
5870 case TARGET_NR_fstat:
5871 {
5872 ret = get_errno(fstat(arg1, &st));
5873 do_stat:
5874 if (!is_error(ret)) {
5875 struct target_stat *target_st;
5876
5877 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
5878 goto efault;
5879 memset(target_st, 0, sizeof(*target_st));
5880 __put_user(st.st_dev, &target_st->st_dev);
5881 __put_user(st.st_ino, &target_st->st_ino);
5882 __put_user(st.st_mode, &target_st->st_mode);
5883 __put_user(st.st_uid, &target_st->st_uid);
5884 __put_user(st.st_gid, &target_st->st_gid);
5885 __put_user(st.st_nlink, &target_st->st_nlink);
5886 __put_user(st.st_rdev, &target_st->st_rdev);
5887 __put_user(st.st_size, &target_st->st_size);
5888 __put_user(st.st_blksize, &target_st->st_blksize);
5889 __put_user(st.st_blocks, &target_st->st_blocks);
5890 __put_user(st.st_atime, &target_st->target_st_atime);
5891 __put_user(st.st_mtime, &target_st->target_st_mtime);
5892 __put_user(st.st_ctime, &target_st->target_st_ctime);
5893 unlock_user_struct(target_st, arg2, 1);
5894 }
5895 }
5896 break;
5897 #ifdef TARGET_NR_olduname
5898 case TARGET_NR_olduname:
5899 goto unimplemented;
5900 #endif
5901 #ifdef TARGET_NR_iopl
5902 case TARGET_NR_iopl:
5903 goto unimplemented;
5904 #endif
5905 case TARGET_NR_vhangup:
5906 ret = get_errno(vhangup());
5907 break;
5908 #ifdef TARGET_NR_idle
5909 case TARGET_NR_idle:
5910 goto unimplemented;
5911 #endif
5912 #ifdef TARGET_NR_syscall
5913 case TARGET_NR_syscall:
5914 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
5915 break;
5916 #endif
5917 case TARGET_NR_wait4:
5918 {
5919 int status;
5920 abi_long status_ptr = arg2;
5921 struct rusage rusage, *rusage_ptr;
5922 abi_ulong target_rusage = arg4;
5923 if (target_rusage)
5924 rusage_ptr = &rusage;
5925 else
5926 rusage_ptr = NULL;
5927 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
5928 if (!is_error(ret)) {
5929 if (status_ptr) {
5930 status = host_to_target_waitstatus(status);
5931 if (put_user_s32(status, status_ptr))
5932 goto efault;
5933 }
5934 if (target_rusage)
5935 host_to_target_rusage(target_rusage, &rusage);
5936 }
5937 }
5938 break;
5939 #ifdef TARGET_NR_swapoff
5940 case TARGET_NR_swapoff:
5941 if (!(p = lock_user_string(arg1)))
5942 goto efault;
5943 ret = get_errno(swapoff(p));
5944 unlock_user(p, arg1, 0);
5945 break;
5946 #endif
5947 case TARGET_NR_sysinfo:
5948 {
5949 struct target_sysinfo *target_value;
5950 struct sysinfo value;
5951 ret = get_errno(sysinfo(&value));
5952 if (!is_error(ret) && arg1)
5953 {
5954 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
5955 goto efault;
5956 __put_user(value.uptime, &target_value->uptime);
5957 __put_user(value.loads[0], &target_value->loads[0]);
5958 __put_user(value.loads[1], &target_value->loads[1]);
5959 __put_user(value.loads[2], &target_value->loads[2]);
5960 __put_user(value.totalram, &target_value->totalram);
5961 __put_user(value.freeram, &target_value->freeram);
5962 __put_user(value.sharedram, &target_value->sharedram);
5963 __put_user(value.bufferram, &target_value->bufferram);
5964 __put_user(value.totalswap, &target_value->totalswap);
5965 __put_user(value.freeswap, &target_value->freeswap);
5966 __put_user(value.procs, &target_value->procs);
5967 __put_user(value.totalhigh, &target_value->totalhigh);
5968 __put_user(value.freehigh, &target_value->freehigh);
5969 __put_user(value.mem_unit, &target_value->mem_unit);
5970 unlock_user_struct(target_value, arg1, 1);
5971 }
5972 }
5973 break;
5974 #ifdef TARGET_NR_ipc
5975 case TARGET_NR_ipc:
5976 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
5977 break;
5978 #endif
5979 #ifdef TARGET_NR_semget
5980 case TARGET_NR_semget:
5981 ret = get_errno(semget(arg1, arg2, arg3));
5982 break;
5983 #endif
5984 #ifdef TARGET_NR_semop
5985 case TARGET_NR_semop:
5986 ret = get_errno(do_semop(arg1, arg2, arg3));
5987 break;
5988 #endif
5989 #ifdef TARGET_NR_semctl
5990 case TARGET_NR_semctl:
5991 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
5992 break;
5993 #endif
5994 #ifdef TARGET_NR_msgctl
5995 case TARGET_NR_msgctl:
5996 ret = do_msgctl(arg1, arg2, arg3);
5997 break;
5998 #endif
5999 #ifdef TARGET_NR_msgget
6000 case TARGET_NR_msgget:
6001 ret = get_errno(msgget(arg1, arg2));
6002 break;
6003 #endif
6004 #ifdef TARGET_NR_msgrcv
6005 case TARGET_NR_msgrcv:
6006 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
6007 break;
6008 #endif
6009 #ifdef TARGET_NR_msgsnd
6010 case TARGET_NR_msgsnd:
6011 ret = do_msgsnd(arg1, arg2, arg3, arg4);
6012 break;
6013 #endif
6014 #ifdef TARGET_NR_shmget
6015 case TARGET_NR_shmget:
6016 ret = get_errno(shmget(arg1, arg2, arg3));
6017 break;
6018 #endif
6019 #ifdef TARGET_NR_shmctl
6020 case TARGET_NR_shmctl:
6021 ret = do_shmctl(arg1, arg2, arg3);
6022 break;
6023 #endif
6024 #ifdef TARGET_NR_shmat
6025 case TARGET_NR_shmat:
6026 ret = do_shmat(arg1, arg2, arg3);
6027 break;
6028 #endif
6029 #ifdef TARGET_NR_shmdt
6030 case TARGET_NR_shmdt:
6031 ret = do_shmdt(arg1);
6032 break;
6033 #endif
6034 case TARGET_NR_fsync:
6035 ret = get_errno(fsync(arg1));
6036 break;
6037 case TARGET_NR_clone:
6038 #if defined(TARGET_SH4) || defined(TARGET_ALPHA)
6039 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6040 #elif defined(TARGET_CRIS)
6041 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5));
6042 #else
6043 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6044 #endif
6045 break;
6046 #ifdef __NR_exit_group
6047 /* new thread calls */
6048 case TARGET_NR_exit_group:
6049 #ifdef TARGET_GPROF
6050 _mcleanup();
6051 #endif
6052 gdb_exit(cpu_env, arg1);
6053 ret = get_errno(exit_group(arg1));
6054 break;
6055 #endif
6056 case TARGET_NR_setdomainname:
6057 if (!(p = lock_user_string(arg1)))
6058 goto efault;
6059 ret = get_errno(setdomainname(p, arg2));
6060 unlock_user(p, arg1, 0);
6061 break;
6062 case TARGET_NR_uname:
6063 /* no need to transcode because we use the linux syscall */
6064 {
6065 struct new_utsname * buf;
6066
6067 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6068 goto efault;
6069 ret = get_errno(sys_uname(buf));
6070 if (!is_error(ret)) {
6071 /* Overrite the native machine name with whatever is being
6072 emulated. */
6073 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6074 /* Allow the user to override the reported release. */
6075 if (qemu_uname_release && *qemu_uname_release)
6076 strcpy (buf->release, qemu_uname_release);
6077 }
6078 unlock_user_struct(buf, arg1, 1);
6079 }
6080 break;
6081 #ifdef TARGET_I386
6082 case TARGET_NR_modify_ldt:
6083 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6084 break;
6085 #if !defined(TARGET_X86_64)
6086 case TARGET_NR_vm86old:
6087 goto unimplemented;
6088 case TARGET_NR_vm86:
6089 ret = do_vm86(cpu_env, arg1, arg2);
6090 break;
6091 #endif
6092 #endif
6093 case TARGET_NR_adjtimex:
6094 goto unimplemented;
6095 #ifdef TARGET_NR_create_module
6096 case TARGET_NR_create_module:
6097 #endif
6098 case TARGET_NR_init_module:
6099 case TARGET_NR_delete_module:
6100 #ifdef TARGET_NR_get_kernel_syms
6101 case TARGET_NR_get_kernel_syms:
6102 #endif
6103 goto unimplemented;
6104 case TARGET_NR_quotactl:
6105 goto unimplemented;
6106 case TARGET_NR_getpgid:
6107 ret = get_errno(getpgid(arg1));
6108 break;
6109 case TARGET_NR_fchdir:
6110 ret = get_errno(fchdir(arg1));
6111 break;
6112 #ifdef TARGET_NR_bdflush /* not on x86_64 */
6113 case TARGET_NR_bdflush:
6114 goto unimplemented;
6115 #endif
6116 #ifdef TARGET_NR_sysfs
6117 case TARGET_NR_sysfs:
6118 goto unimplemented;
6119 #endif
6120 case TARGET_NR_personality:
6121 ret = get_errno(personality(arg1));
6122 break;
6123 #ifdef TARGET_NR_afs_syscall
6124 case TARGET_NR_afs_syscall:
6125 goto unimplemented;
6126 #endif
6127 #ifdef TARGET_NR__llseek /* Not on alpha */
6128 case TARGET_NR__llseek:
6129 {
6130 #if !defined(__NR_llseek)
6131 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
6132 if (put_user_s64(ret, arg4))
6133 goto efault;
6134 #else
6135 int64_t res;
6136 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
6137 if (put_user_s64(res, arg4))
6138 goto efault;
6139 #endif
6140 }
6141 break;
6142 #endif
6143 case TARGET_NR_getdents:
6144 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
6145 {
6146 struct target_dirent *target_dirp;
6147 struct linux_dirent *dirp;
6148 abi_long count = arg3;
6149
6150 dirp = malloc(count);
6151 if (!dirp) {
6152 ret = -TARGET_ENOMEM;
6153 goto fail;
6154 }
6155
6156 ret = get_errno(sys_getdents(arg1, dirp, count));
6157 if (!is_error(ret)) {
6158 struct linux_dirent *de;
6159 struct target_dirent *tde;
6160 int len = ret;
6161 int reclen, treclen;
6162 int count1, tnamelen;
6163
6164 count1 = 0;
6165 de = dirp;
6166 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6167 goto efault;
6168 tde = target_dirp;
6169 while (len > 0) {
6170 reclen = de->d_reclen;
6171 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
6172 tde->d_reclen = tswap16(treclen);
6173 tde->d_ino = tswapl(de->d_ino);
6174 tde->d_off = tswapl(de->d_off);
6175 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
6176 if (tnamelen > 256)
6177 tnamelen = 256;
6178 /* XXX: may not be correct */
6179 pstrcpy(tde->d_name, tnamelen, de->d_name);
6180 de = (struct linux_dirent *)((char *)de + reclen);
6181 len -= reclen;
6182 tde = (struct target_dirent *)((char *)tde + treclen);
6183 count1 += treclen;
6184 }
6185 ret = count1;
6186 unlock_user(target_dirp, arg2, ret);
6187 }
6188 free(dirp);
6189 }
6190 #else
6191 {
6192 struct linux_dirent *dirp;
6193 abi_long count = arg3;
6194
6195 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6196 goto efault;
6197 ret = get_errno(sys_getdents(arg1, dirp, count));
6198 if (!is_error(ret)) {
6199 struct linux_dirent *de;
6200 int len = ret;
6201 int reclen;
6202 de = dirp;
6203 while (len > 0) {
6204 reclen = de->d_reclen;
6205 if (reclen > len)
6206 break;
6207 de->d_reclen = tswap16(reclen);
6208 tswapls(&de->d_ino);
6209 tswapls(&de->d_off);
6210 de = (struct linux_dirent *)((char *)de + reclen);
6211 len -= reclen;
6212 }
6213 }
6214 unlock_user(dirp, arg2, ret);
6215 }
6216 #endif
6217 break;
6218 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
6219 case TARGET_NR_getdents64:
6220 {
6221 struct linux_dirent64 *dirp;
6222 abi_long count = arg3;
6223 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
6224 goto efault;
6225 ret = get_errno(sys_getdents64(arg1, dirp, count));
6226 if (!is_error(ret)) {
6227 struct linux_dirent64 *de;
6228 int len = ret;
6229 int reclen;
6230 de = dirp;
6231 while (len > 0) {
6232 reclen = de->d_reclen;
6233 if (reclen > len)
6234 break;
6235 de->d_reclen = tswap16(reclen);
6236 tswap64s((uint64_t *)&de->d_ino);
6237 tswap64s((uint64_t *)&de->d_off);
6238 de = (struct linux_dirent64 *)((char *)de + reclen);
6239 len -= reclen;
6240 }
6241 }
6242 unlock_user(dirp, arg2, ret);
6243 }
6244 break;
6245 #endif /* TARGET_NR_getdents64 */
6246 #ifdef TARGET_NR__newselect
6247 case TARGET_NR__newselect:
6248 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6249 break;
6250 #endif
6251 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
6252 # ifdef TARGET_NR_poll
6253 case TARGET_NR_poll:
6254 # endif
6255 # ifdef TARGET_NR_ppoll
6256 case TARGET_NR_ppoll:
6257 # endif
6258 {
6259 struct target_pollfd *target_pfd;
6260 unsigned int nfds = arg2;
6261 int timeout = arg3;
6262 struct pollfd *pfd;
6263 unsigned int i;
6264
6265 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
6266 if (!target_pfd)
6267 goto efault;
6268
6269 pfd = alloca(sizeof(struct pollfd) * nfds);
6270 for(i = 0; i < nfds; i++) {
6271 pfd[i].fd = tswap32(target_pfd[i].fd);
6272 pfd[i].events = tswap16(target_pfd[i].events);
6273 }
6274
6275 # ifdef TARGET_NR_ppoll
6276 if (num == TARGET_NR_ppoll) {
6277 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
6278 target_sigset_t *target_set;
6279 sigset_t _set, *set = &_set;
6280
6281 if (arg3) {
6282 if (target_to_host_timespec(timeout_ts, arg3)) {
6283 unlock_user(target_pfd, arg1, 0);
6284 goto efault;
6285 }
6286 } else {
6287 timeout_ts = NULL;
6288 }
6289
6290 if (arg4) {
6291 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
6292 if (!target_set) {
6293 unlock_user(target_pfd, arg1, 0);
6294 goto efault;
6295 }
6296 target_to_host_sigset(set, target_set);
6297 } else {
6298 set = NULL;
6299 }
6300
6301 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
6302
6303 if (!is_error(ret) && arg3) {
6304 host_to_target_timespec(arg3, timeout_ts);
6305 }
6306 if (arg4) {
6307 unlock_user(target_set, arg4, 0);
6308 }
6309 } else
6310 # endif
6311 ret = get_errno(poll(pfd, nfds, timeout));
6312
6313 if (!is_error(ret)) {
6314 for(i = 0; i < nfds; i++) {
6315 target_pfd[i].revents = tswap16(pfd[i].revents);
6316 }
6317 ret += nfds * (sizeof(struct target_pollfd)
6318 - sizeof(struct pollfd));
6319 }
6320 unlock_user(target_pfd, arg1, ret);
6321 }
6322 break;
6323 #endif
6324 case TARGET_NR_flock:
6325 /* NOTE: the flock constant seems to be the same for every
6326 Linux platform */
6327 ret = get_errno(flock(arg1, arg2));
6328 break;
6329 case TARGET_NR_readv:
6330 {
6331 int count = arg3;
6332 struct iovec *vec;
6333
6334 vec = alloca(count * sizeof(struct iovec));
6335 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
6336 goto efault;
6337 ret = get_errno(readv(arg1, vec, count));
6338 unlock_iovec(vec, arg2, count, 1);
6339 }
6340 break;
6341 case TARGET_NR_writev:
6342 {
6343 int count = arg3;
6344 struct iovec *vec;
6345
6346 vec = alloca(count * sizeof(struct iovec));
6347 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
6348 goto efault;
6349 ret = get_errno(writev(arg1, vec, count));
6350 unlock_iovec(vec, arg2, count, 0);
6351 }
6352 break;
6353 case TARGET_NR_getsid:
6354 ret = get_errno(getsid(arg1));
6355 break;
6356 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
6357 case TARGET_NR_fdatasync:
6358 ret = get_errno(fdatasync(arg1));
6359 break;
6360 #endif
6361 case TARGET_NR__sysctl:
6362 /* We don't implement this, but ENOTDIR is always a safe
6363 return value. */
6364 ret = -TARGET_ENOTDIR;
6365 break;
6366 case TARGET_NR_sched_getaffinity:
6367 {
6368 unsigned int mask_size;
6369 unsigned long *mask;
6370
6371 /*
6372 * sched_getaffinity needs multiples of ulong, so need to take
6373 * care of mismatches between target ulong and host ulong sizes.
6374 */
6375 if (arg2 & (sizeof(abi_ulong) - 1)) {
6376 ret = -TARGET_EINVAL;
6377 break;
6378 }
6379 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
6380
6381 mask = alloca(mask_size);
6382 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
6383
6384 if (!is_error(ret)) {
6385 if (arg2 > ret) {
6386 /* Zero out any extra space kernel didn't fill */
6387 unsigned long zero = arg2 - ret;
6388 p = alloca(zero);
6389 memset(p, 0, zero);
6390 if (copy_to_user(arg3 + zero, p, zero)) {
6391 goto efault;
6392 }
6393 arg2 = ret;
6394 }
6395 if (copy_to_user(arg3, mask, arg2)) {
6396 goto efault;
6397 }
6398 ret = arg2;
6399 }
6400 }
6401 break;
6402 case TARGET_NR_sched_setaffinity:
6403 {
6404 unsigned int mask_size;
6405 unsigned long *mask;
6406
6407 /*
6408 * sched_setaffinity needs multiples of ulong, so need to take
6409 * care of mismatches between target ulong and host ulong sizes.
6410 */
6411 if (arg2 & (sizeof(abi_ulong) - 1)) {
6412 ret = -TARGET_EINVAL;
6413 break;
6414 }
6415 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
6416
6417 mask = alloca(mask_size);
6418 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
6419 goto efault;
6420 }
6421 memcpy(mask, p, arg2);
6422 unlock_user_struct(p, arg2, 0);
6423
6424 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
6425 }
6426 break;
6427 case TARGET_NR_sched_setparam:
6428 {
6429 struct sched_param *target_schp;
6430 struct sched_param schp;
6431
6432 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
6433 goto efault;
6434 schp.sched_priority = tswap32(target_schp->sched_priority);
6435 unlock_user_struct(target_schp, arg2, 0);
6436 ret = get_errno(sched_setparam(arg1, &schp));
6437 }
6438 break;
6439 case TARGET_NR_sched_getparam:
6440 {
6441 struct sched_param *target_schp;
6442 struct sched_param schp;
6443 ret = get_errno(sched_getparam(arg1, &schp));
6444 if (!is_error(ret)) {
6445 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
6446 goto efault;
6447 target_schp->sched_priority = tswap32(schp.sched_priority);
6448 unlock_user_struct(target_schp, arg2, 1);
6449 }
6450 }
6451 break;
6452 case TARGET_NR_sched_setscheduler:
6453 {
6454 struct sched_param *target_schp;
6455 struct sched_param schp;
6456 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
6457 goto efault;
6458 schp.sched_priority = tswap32(target_schp->sched_priority);
6459 unlock_user_struct(target_schp, arg3, 0);
6460 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
6461 }
6462 break;
6463 case TARGET_NR_sched_getscheduler:
6464 ret = get_errno(sched_getscheduler(arg1));
6465 break;
6466 case TARGET_NR_sched_yield:
6467 ret = get_errno(sched_yield());
6468 break;
6469 case TARGET_NR_sched_get_priority_max:
6470 ret = get_errno(sched_get_priority_max(arg1));
6471 break;
6472 case TARGET_NR_sched_get_priority_min:
6473 ret = get_errno(sched_get_priority_min(arg1));
6474 break;
6475 case TARGET_NR_sched_rr_get_interval:
6476 {
6477 struct timespec ts;
6478 ret = get_errno(sched_rr_get_interval(arg1, &ts));
6479 if (!is_error(ret)) {
6480 host_to_target_timespec(arg2, &ts);
6481 }
6482 }
6483 break;
6484 case TARGET_NR_nanosleep:
6485 {
6486 struct timespec req, rem;
6487 target_to_host_timespec(&req, arg1);
6488 ret = get_errno(nanosleep(&req, &rem));
6489 if (is_error(ret) && arg2) {
6490 host_to_target_timespec(arg2, &rem);
6491 }
6492 }
6493 break;
6494 #ifdef TARGET_NR_query_module
6495 case TARGET_NR_query_module:
6496 goto unimplemented;
6497 #endif
6498 #ifdef TARGET_NR_nfsservctl
6499 case TARGET_NR_nfsservctl:
6500 goto unimplemented;
6501 #endif
6502 case TARGET_NR_prctl:
6503 switch (arg1)
6504 {
6505 case PR_GET_PDEATHSIG:
6506 {
6507 int deathsig;
6508 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
6509 if (!is_error(ret) && arg2
6510 && put_user_ual(deathsig, arg2))
6511 goto efault;
6512 }
6513 break;
6514 default:
6515 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
6516 break;
6517 }
6518 break;
6519 #ifdef TARGET_NR_arch_prctl
6520 case TARGET_NR_arch_prctl:
6521 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
6522 ret = do_arch_prctl(cpu_env, arg1, arg2);
6523 break;
6524 #else
6525 goto unimplemented;
6526 #endif
6527 #endif
6528 #ifdef TARGET_NR_pread
6529 case TARGET_NR_pread:
6530 #ifdef TARGET_ARM
6531 if (((CPUARMState *)cpu_env)->eabi)
6532 arg4 = arg5;
6533 #endif
6534 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6535 goto efault;
6536 ret = get_errno(pread(arg1, p, arg3, arg4));
6537 unlock_user(p, arg2, ret);
6538 break;
6539 case TARGET_NR_pwrite:
6540 #ifdef TARGET_ARM
6541 if (((CPUARMState *)cpu_env)->eabi)
6542 arg4 = arg5;
6543 #endif
6544 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6545 goto efault;
6546 ret = get_errno(pwrite(arg1, p, arg3, arg4));
6547 unlock_user(p, arg2, 0);
6548 break;
6549 #endif
6550 #ifdef TARGET_NR_pread64
6551 case TARGET_NR_pread64:
6552 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6553 goto efault;
6554 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
6555 unlock_user(p, arg2, ret);
6556 break;
6557 case TARGET_NR_pwrite64:
6558 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6559 goto efault;
6560 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
6561 unlock_user(p, arg2, 0);
6562 break;
6563 #endif
6564 case TARGET_NR_getcwd:
6565 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
6566 goto efault;
6567 ret = get_errno(sys_getcwd1(p, arg2));
6568 unlock_user(p, arg1, ret);
6569 break;
6570 case TARGET_NR_capget:
6571 goto unimplemented;
6572 case TARGET_NR_capset:
6573 goto unimplemented;
6574 case TARGET_NR_sigaltstack:
6575 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
6576 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
6577 defined(TARGET_M68K)
6578 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
6579 break;
6580 #else
6581 goto unimplemented;
6582 #endif
6583 case TARGET_NR_sendfile:
6584 goto unimplemented;
6585 #ifdef TARGET_NR_getpmsg
6586 case TARGET_NR_getpmsg:
6587 goto unimplemented;
6588 #endif
6589 #ifdef TARGET_NR_putpmsg
6590 case TARGET_NR_putpmsg:
6591 goto unimplemented;
6592 #endif
6593 #ifdef TARGET_NR_vfork
6594 case TARGET_NR_vfork:
6595 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
6596 0, 0, 0, 0));
6597 break;
6598 #endif
6599 #ifdef TARGET_NR_ugetrlimit
6600 case TARGET_NR_ugetrlimit:
6601 {
6602 struct rlimit rlim;
6603 ret = get_errno(getrlimit(arg1, &rlim));
6604 if (!is_error(ret)) {
6605 struct target_rlimit *target_rlim;
6606 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6607 goto efault;
6608 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6609 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6610 unlock_user_struct(target_rlim, arg2, 1);
6611 }
6612 break;
6613 }
6614 #endif
6615 #ifdef TARGET_NR_truncate64
6616 case TARGET_NR_truncate64:
6617 if (!(p = lock_user_string(arg1)))
6618 goto efault;
6619 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
6620 unlock_user(p, arg1, 0);
6621 break;
6622 #endif
6623 #ifdef TARGET_NR_ftruncate64
6624 case TARGET_NR_ftruncate64:
6625 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
6626 break;
6627 #endif
6628 #ifdef TARGET_NR_stat64
6629 case TARGET_NR_stat64:
6630 if (!(p = lock_user_string(arg1)))
6631 goto efault;
6632 ret = get_errno(stat(path(p), &st));
6633 unlock_user(p, arg1, 0);
6634 if (!is_error(ret))
6635 ret = host_to_target_stat64(cpu_env, arg2, &st);
6636 break;
6637 #endif
6638 #ifdef TARGET_NR_lstat64
6639 case TARGET_NR_lstat64:
6640 if (!(p = lock_user_string(arg1)))
6641 goto efault;
6642 ret = get_errno(lstat(path(p), &st));
6643 unlock_user(p, arg1, 0);
6644 if (!is_error(ret))
6645 ret = host_to_target_stat64(cpu_env, arg2, &st);
6646 break;
6647 #endif
6648 #ifdef TARGET_NR_fstat64
6649 case TARGET_NR_fstat64:
6650 ret = get_errno(fstat(arg1, &st));
6651 if (!is_error(ret))
6652 ret = host_to_target_stat64(cpu_env, arg2, &st);
6653 break;
6654 #endif
6655 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \
6656 (defined(__NR_fstatat64) || defined(__NR_newfstatat))
6657 #ifdef TARGET_NR_fstatat64
6658 case TARGET_NR_fstatat64:
6659 #endif
6660 #ifdef TARGET_NR_newfstatat
6661 case TARGET_NR_newfstatat:
6662 #endif
6663 if (!(p = lock_user_string(arg2)))
6664 goto efault;
6665 #ifdef __NR_fstatat64
6666 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
6667 #else
6668 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4));
6669 #endif
6670 if (!is_error(ret))
6671 ret = host_to_target_stat64(cpu_env, arg3, &st);
6672 break;
6673 #endif
6674 #ifdef USE_UID16
6675 case TARGET_NR_lchown:
6676 if (!(p = lock_user_string(arg1)))
6677 goto efault;
6678 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
6679 unlock_user(p, arg1, 0);
6680 break;
6681 case TARGET_NR_getuid:
6682 ret = get_errno(high2lowuid(getuid()));
6683 break;
6684 case TARGET_NR_getgid:
6685 ret = get_errno(high2lowgid(getgid()));
6686 break;
6687 case TARGET_NR_geteuid:
6688 ret = get_errno(high2lowuid(geteuid()));
6689 break;
6690 case TARGET_NR_getegid:
6691 ret = get_errno(high2lowgid(getegid()));
6692 break;
6693 case TARGET_NR_setreuid:
6694 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
6695 break;
6696 case TARGET_NR_setregid:
6697 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
6698 break;
6699 case TARGET_NR_getgroups:
6700 {
6701 int gidsetsize = arg1;
6702 uint16_t *target_grouplist;
6703 gid_t *grouplist;
6704 int i;
6705
6706 grouplist = alloca(gidsetsize * sizeof(gid_t));
6707 ret = get_errno(getgroups(gidsetsize, grouplist));
6708 if (gidsetsize == 0)
6709 break;
6710 if (!is_error(ret)) {
6711 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
6712 if (!target_grouplist)
6713 goto efault;
6714 for(i = 0;i < ret; i++)
6715 target_grouplist[i] = tswap16(grouplist[i]);
6716 unlock_user(target_grouplist, arg2, gidsetsize * 2);
6717 }
6718 }
6719 break;
6720 case TARGET_NR_setgroups:
6721 {
6722 int gidsetsize = arg1;
6723 uint16_t *target_grouplist;
6724 gid_t *grouplist;
6725 int i;
6726
6727 grouplist = alloca(gidsetsize * sizeof(gid_t));
6728 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
6729 if (!target_grouplist) {
6730 ret = -TARGET_EFAULT;
6731 goto fail;
6732 }
6733 for(i = 0;i < gidsetsize; i++)
6734 grouplist[i] = tswap16(target_grouplist[i]);
6735 unlock_user(target_grouplist, arg2, 0);
6736 ret = get_errno(setgroups(gidsetsize, grouplist));
6737 }
6738 break;
6739 case TARGET_NR_fchown:
6740 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
6741 break;
6742 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
6743 case TARGET_NR_fchownat:
6744 if (!(p = lock_user_string(arg2)))
6745 goto efault;
6746 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
6747 unlock_user(p, arg2, 0);
6748 break;
6749 #endif
6750 #ifdef TARGET_NR_setresuid
6751 case TARGET_NR_setresuid:
6752 ret = get_errno(setresuid(low2highuid(arg1),
6753 low2highuid(arg2),
6754 low2highuid(arg3)));
6755 break;
6756 #endif
6757 #ifdef TARGET_NR_getresuid
6758 case TARGET_NR_getresuid:
6759 {
6760 uid_t ruid, euid, suid;
6761 ret = get_errno(getresuid(&ruid, &euid, &suid));
6762 if (!is_error(ret)) {
6763 if (put_user_u16(high2lowuid(ruid), arg1)
6764 || put_user_u16(high2lowuid(euid), arg2)
6765 || put_user_u16(high2lowuid(suid), arg3))
6766 goto efault;
6767 }
6768 }
6769 break;
6770 #endif
6771 #ifdef TARGET_NR_getresgid
6772 case TARGET_NR_setresgid:
6773 ret = get_errno(setresgid(low2highgid(arg1),
6774 low2highgid(arg2),
6775 low2highgid(arg3)));
6776 break;
6777 #endif
6778 #ifdef TARGET_NR_getresgid
6779 case TARGET_NR_getresgid:
6780 {
6781 gid_t rgid, egid, sgid;
6782 ret = get_errno(getresgid(&rgid, &egid, &sgid));
6783 if (!is_error(ret)) {
6784 if (put_user_u16(high2lowgid(rgid), arg1)
6785 || put_user_u16(high2lowgid(egid), arg2)
6786 || put_user_u16(high2lowgid(sgid), arg3))
6787 goto efault;
6788 }
6789 }
6790 break;
6791 #endif
6792 case TARGET_NR_chown:
6793 if (!(p = lock_user_string(arg1)))
6794 goto efault;
6795 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
6796 unlock_user(p, arg1, 0);
6797 break;
6798 case TARGET_NR_setuid:
6799 ret = get_errno(setuid(low2highuid(arg1)));
6800 break;
6801 case TARGET_NR_setgid:
6802 ret = get_errno(setgid(low2highgid(arg1)));
6803 break;
6804 case TARGET_NR_setfsuid:
6805 ret = get_errno(setfsuid(arg1));
6806 break;
6807 case TARGET_NR_setfsgid:
6808 ret = get_errno(setfsgid(arg1));
6809 break;
6810 #endif /* USE_UID16 */
6811
6812 #ifdef TARGET_NR_lchown32
6813 case TARGET_NR_lchown32:
6814 if (!(p = lock_user_string(arg1)))
6815 goto efault;
6816 ret = get_errno(lchown(p, arg2, arg3));
6817 unlock_user(p, arg1, 0);
6818 break;
6819 #endif
6820 #ifdef TARGET_NR_getuid32
6821 case TARGET_NR_getuid32:
6822 ret = get_errno(getuid());
6823 break;
6824 #endif
6825
6826 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
6827 /* Alpha specific */
6828 case TARGET_NR_getxuid:
6829 {
6830 uid_t euid;
6831 euid=geteuid();
6832 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
6833 }
6834 ret = get_errno(getuid());
6835 break;
6836 #endif
6837 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
6838 /* Alpha specific */
6839 case TARGET_NR_getxgid:
6840 {
6841 uid_t egid;
6842 egid=getegid();
6843 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
6844 }
6845 ret = get_errno(getgid());
6846 break;
6847 #endif
6848 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
6849 /* Alpha specific */
6850 case TARGET_NR_osf_getsysinfo:
6851 ret = -TARGET_EOPNOTSUPP;
6852 switch (arg1) {
6853 case TARGET_GSI_IEEE_FP_CONTROL:
6854 {
6855 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
6856
6857 /* Copied from linux ieee_fpcr_to_swcr. */
6858 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
6859 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
6860 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
6861 | SWCR_TRAP_ENABLE_DZE
6862 | SWCR_TRAP_ENABLE_OVF);
6863 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
6864 | SWCR_TRAP_ENABLE_INE);
6865 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
6866 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
6867
6868 if (put_user_u64 (swcr, arg2))
6869 goto efault;
6870 ret = 0;
6871 }
6872 break;
6873
6874 /* case GSI_IEEE_STATE_AT_SIGNAL:
6875 -- Not implemented in linux kernel.
6876 case GSI_UACPROC:
6877 -- Retrieves current unaligned access state; not much used.
6878 case GSI_PROC_TYPE:
6879 -- Retrieves implver information; surely not used.
6880 case GSI_GET_HWRPB:
6881 -- Grabs a copy of the HWRPB; surely not used.
6882 */
6883 }
6884 break;
6885 #endif
6886 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
6887 /* Alpha specific */
6888 case TARGET_NR_osf_setsysinfo:
6889 ret = -TARGET_EOPNOTSUPP;
6890 switch (arg1) {
6891 case TARGET_SSI_IEEE_FP_CONTROL:
6892 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
6893 {
6894 uint64_t swcr, fpcr, orig_fpcr;
6895
6896 if (get_user_u64 (swcr, arg2))
6897 goto efault;
6898 orig_fpcr = cpu_alpha_load_fpcr (cpu_env);
6899 fpcr = orig_fpcr & FPCR_DYN_MASK;
6900
6901 /* Copied from linux ieee_swcr_to_fpcr. */
6902 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
6903 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
6904 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
6905 | SWCR_TRAP_ENABLE_DZE
6906 | SWCR_TRAP_ENABLE_OVF)) << 48;
6907 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
6908 | SWCR_TRAP_ENABLE_INE)) << 57;
6909 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
6910 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
6911
6912 cpu_alpha_store_fpcr (cpu_env, fpcr);
6913 ret = 0;
6914
6915 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) {
6916 /* Old exceptions are not signaled. */
6917 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
6918
6919 /* If any exceptions set by this call, and are unmasked,
6920 send a signal. */
6921 /* ??? FIXME */
6922 }
6923 }
6924 break;
6925
6926 /* case SSI_NVPAIRS:
6927 -- Used with SSIN_UACPROC to enable unaligned accesses.
6928 case SSI_IEEE_STATE_AT_SIGNAL:
6929 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
6930 -- Not implemented in linux kernel
6931 */
6932 }
6933 break;
6934 #endif
6935 #ifdef TARGET_NR_osf_sigprocmask
6936 /* Alpha specific. */
6937 case TARGET_NR_osf_sigprocmask:
6938 {
6939 abi_ulong mask;
6940 int how = arg1;
6941 sigset_t set, oldset;
6942
6943 switch(arg1) {
6944 case TARGET_SIG_BLOCK:
6945 how = SIG_BLOCK;
6946 break;
6947 case TARGET_SIG_UNBLOCK:
6948 how = SIG_UNBLOCK;
6949 break;
6950 case TARGET_SIG_SETMASK:
6951 how = SIG_SETMASK;
6952 break;
6953 default:
6954 ret = -TARGET_EINVAL;
6955 goto fail;
6956 }
6957 mask = arg2;
6958 target_to_host_old_sigset(&set, &mask);
6959 sigprocmask(arg1, &set, &oldset);
6960 host_to_target_old_sigset(&mask, &oldset);
6961 ret = mask;
6962 }
6963 break;
6964 #endif
6965
6966 #ifdef TARGET_NR_getgid32
6967 case TARGET_NR_getgid32:
6968 ret = get_errno(getgid());
6969 break;
6970 #endif
6971 #ifdef TARGET_NR_geteuid32
6972 case TARGET_NR_geteuid32:
6973 ret = get_errno(geteuid());
6974 break;
6975 #endif
6976 #ifdef TARGET_NR_getegid32
6977 case TARGET_NR_getegid32:
6978 ret = get_errno(getegid());
6979 break;
6980 #endif
6981 #ifdef TARGET_NR_setreuid32
6982 case TARGET_NR_setreuid32:
6983 ret = get_errno(setreuid(arg1, arg2));
6984 break;
6985 #endif
6986 #ifdef TARGET_NR_setregid32
6987 case TARGET_NR_setregid32:
6988 ret = get_errno(setregid(arg1, arg2));
6989 break;
6990 #endif
6991 #ifdef TARGET_NR_getgroups32
6992 case TARGET_NR_getgroups32:
6993 {
6994 int gidsetsize = arg1;
6995 uint32_t *target_grouplist;
6996 gid_t *grouplist;
6997 int i;
6998
6999 grouplist = alloca(gidsetsize * sizeof(gid_t));
7000 ret = get_errno(getgroups(gidsetsize, grouplist));
7001 if (gidsetsize == 0)
7002 break;
7003 if (!is_error(ret)) {
7004 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
7005 if (!target_grouplist) {
7006 ret = -TARGET_EFAULT;
7007 goto fail;
7008 }
7009 for(i = 0;i < ret; i++)
7010 target_grouplist[i] = tswap32(grouplist[i]);
7011 unlock_user(target_grouplist, arg2, gidsetsize * 4);
7012 }
7013 }
7014 break;
7015 #endif
7016 #ifdef TARGET_NR_setgroups32
7017 case TARGET_NR_setgroups32:
7018 {
7019 int gidsetsize = arg1;
7020 uint32_t *target_grouplist;
7021 gid_t *grouplist;
7022 int i;
7023
7024 grouplist = alloca(gidsetsize * sizeof(gid_t));
7025 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
7026 if (!target_grouplist) {
7027 ret = -TARGET_EFAULT;
7028 goto fail;
7029 }
7030 for(i = 0;i < gidsetsize; i++)
7031 grouplist[i] = tswap32(target_grouplist[i]);
7032 unlock_user(target_grouplist, arg2, 0);
7033 ret = get_errno(setgroups(gidsetsize, grouplist));
7034 }
7035 break;
7036 #endif
7037 #ifdef TARGET_NR_fchown32
7038 case TARGET_NR_fchown32:
7039 ret = get_errno(fchown(arg1, arg2, arg3));
7040 break;
7041 #endif
7042 #ifdef TARGET_NR_setresuid32
7043 case TARGET_NR_setresuid32:
7044 ret = get_errno(setresuid(arg1, arg2, arg3));
7045 break;
7046 #endif
7047 #ifdef TARGET_NR_getresuid32
7048 case TARGET_NR_getresuid32:
7049 {
7050 uid_t ruid, euid, suid;
7051 ret = get_errno(getresuid(&ruid, &euid, &suid));
7052 if (!is_error(ret)) {
7053 if (put_user_u32(ruid, arg1)
7054 || put_user_u32(euid, arg2)
7055 || put_user_u32(suid, arg3))
7056 goto efault;
7057 }
7058 }
7059 break;
7060 #endif
7061 #ifdef TARGET_NR_setresgid32
7062 case TARGET_NR_setresgid32:
7063 ret = get_errno(setresgid(arg1, arg2, arg3));
7064 break;
7065 #endif
7066 #ifdef TARGET_NR_getresgid32
7067 case TARGET_NR_getresgid32:
7068 {
7069 gid_t rgid, egid, sgid;
7070 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7071 if (!is_error(ret)) {
7072 if (put_user_u32(rgid, arg1)
7073 || put_user_u32(egid, arg2)
7074 || put_user_u32(sgid, arg3))
7075 goto efault;
7076 }
7077 }
7078 break;
7079 #endif
7080 #ifdef TARGET_NR_chown32
7081 case TARGET_NR_chown32:
7082 if (!(p = lock_user_string(arg1)))
7083 goto efault;
7084 ret = get_errno(chown(p, arg2, arg3));
7085 unlock_user(p, arg1, 0);
7086 break;
7087 #endif
7088 #ifdef TARGET_NR_setuid32
7089 case TARGET_NR_setuid32:
7090 ret = get_errno(setuid(arg1));
7091 break;
7092 #endif
7093 #ifdef TARGET_NR_setgid32
7094 case TARGET_NR_setgid32:
7095 ret = get_errno(setgid(arg1));
7096 break;
7097 #endif
7098 #ifdef TARGET_NR_setfsuid32
7099 case TARGET_NR_setfsuid32:
7100 ret = get_errno(setfsuid(arg1));
7101 break;
7102 #endif
7103 #ifdef TARGET_NR_setfsgid32
7104 case TARGET_NR_setfsgid32:
7105 ret = get_errno(setfsgid(arg1));
7106 break;
7107 #endif
7108
7109 case TARGET_NR_pivot_root:
7110 goto unimplemented;
7111 #ifdef TARGET_NR_mincore
7112 case TARGET_NR_mincore:
7113 {
7114 void *a;
7115 ret = -TARGET_EFAULT;
7116 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
7117 goto efault;
7118 if (!(p = lock_user_string(arg3)))
7119 goto mincore_fail;
7120 ret = get_errno(mincore(a, arg2, p));
7121 unlock_user(p, arg3, ret);
7122 mincore_fail:
7123 unlock_user(a, arg1, 0);
7124 }
7125 break;
7126 #endif
7127 #ifdef TARGET_NR_arm_fadvise64_64
7128 case TARGET_NR_arm_fadvise64_64:
7129 {
7130 /*
7131 * arm_fadvise64_64 looks like fadvise64_64 but
7132 * with different argument order
7133 */
7134 abi_long temp;
7135 temp = arg3;
7136 arg3 = arg4;
7137 arg4 = temp;
7138 }
7139 #endif
7140 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
7141 #ifdef TARGET_NR_fadvise64_64
7142 case TARGET_NR_fadvise64_64:
7143 #endif
7144 #ifdef TARGET_NR_fadvise64
7145 case TARGET_NR_fadvise64:
7146 #endif
7147 #ifdef TARGET_S390X
7148 switch (arg4) {
7149 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
7150 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
7151 case 6: arg4 = POSIX_FADV_DONTNEED; break;
7152 case 7: arg4 = POSIX_FADV_NOREUSE; break;
7153 default: break;
7154 }
7155 #endif
7156 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
7157 break;
7158 #endif
7159 #ifdef TARGET_NR_madvise
7160 case TARGET_NR_madvise:
7161 /* A straight passthrough may not be safe because qemu sometimes
7162 turns private flie-backed mappings into anonymous mappings.
7163 This will break MADV_DONTNEED.
7164 This is a hint, so ignoring and returning success is ok. */
7165 ret = get_errno(0);
7166 break;
7167 #endif
7168 #if TARGET_ABI_BITS == 32
7169 case TARGET_NR_fcntl64:
7170 {
7171 int cmd;
7172 struct flock64 fl;
7173 struct target_flock64 *target_fl;
7174 #ifdef TARGET_ARM
7175 struct target_eabi_flock64 *target_efl;
7176 #endif
7177
7178 cmd = target_to_host_fcntl_cmd(arg2);
7179 if (cmd == -TARGET_EINVAL)
7180 return cmd;
7181
7182 switch(arg2) {
7183 case TARGET_F_GETLK64:
7184 #ifdef TARGET_ARM
7185 if (((CPUARMState *)cpu_env)->eabi) {
7186 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7187 goto efault;
7188 fl.l_type = tswap16(target_efl->l_type);
7189 fl.l_whence = tswap16(target_efl->l_whence);
7190 fl.l_start = tswap64(target_efl->l_start);
7191 fl.l_len = tswap64(target_efl->l_len);
7192 fl.l_pid = tswap32(target_efl->l_pid);
7193 unlock_user_struct(target_efl, arg3, 0);
7194 } else
7195 #endif
7196 {
7197 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7198 goto efault;
7199 fl.l_type = tswap16(target_fl->l_type);
7200 fl.l_whence = tswap16(target_fl->l_whence);
7201 fl.l_start = tswap64(target_fl->l_start);
7202 fl.l_len = tswap64(target_fl->l_len);
7203 fl.l_pid = tswap32(target_fl->l_pid);
7204 unlock_user_struct(target_fl, arg3, 0);
7205 }
7206 ret = get_errno(fcntl(arg1, cmd, &fl));
7207 if (ret == 0) {
7208 #ifdef TARGET_ARM
7209 if (((CPUARMState *)cpu_env)->eabi) {
7210 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
7211 goto efault;
7212 target_efl->l_type = tswap16(fl.l_type);
7213 target_efl->l_whence = tswap16(fl.l_whence);
7214 target_efl->l_start = tswap64(fl.l_start);
7215 target_efl->l_len = tswap64(fl.l_len);
7216 target_efl->l_pid = tswap32(fl.l_pid);
7217 unlock_user_struct(target_efl, arg3, 1);
7218 } else
7219 #endif
7220 {
7221 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
7222 goto efault;
7223 target_fl->l_type = tswap16(fl.l_type);
7224 target_fl->l_whence = tswap16(fl.l_whence);
7225 target_fl->l_start = tswap64(fl.l_start);
7226 target_fl->l_len = tswap64(fl.l_len);
7227 target_fl->l_pid = tswap32(fl.l_pid);
7228 unlock_user_struct(target_fl, arg3, 1);
7229 }
7230 }
7231 break;
7232
7233 case TARGET_F_SETLK64:
7234 case TARGET_F_SETLKW64:
7235 #ifdef TARGET_ARM
7236 if (((CPUARMState *)cpu_env)->eabi) {
7237 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
7238 goto efault;
7239 fl.l_type = tswap16(target_efl->l_type);
7240 fl.l_whence = tswap16(target_efl->l_whence);
7241 fl.l_start = tswap64(target_efl->l_start);
7242 fl.l_len = tswap64(target_efl->l_len);
7243 fl.l_pid = tswap32(target_efl->l_pid);
7244 unlock_user_struct(target_efl, arg3, 0);
7245 } else
7246 #endif
7247 {
7248 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
7249 goto efault;
7250 fl.l_type = tswap16(target_fl->l_type);
7251 fl.l_whence = tswap16(target_fl->l_whence);
7252 fl.l_start = tswap64(target_fl->l_start);
7253 fl.l_len = tswap64(target_fl->l_len);
7254 fl.l_pid = tswap32(target_fl->l_pid);
7255 unlock_user_struct(target_fl, arg3, 0);
7256 }
7257 ret = get_errno(fcntl(arg1, cmd, &fl));
7258 break;
7259 default:
7260 ret = do_fcntl(arg1, arg2, arg3);
7261 break;
7262 }
7263 break;
7264 }
7265 #endif
7266 #ifdef TARGET_NR_cacheflush
7267 case TARGET_NR_cacheflush:
7268 /* self-modifying code is handled automatically, so nothing needed */
7269 ret = 0;
7270 break;
7271 #endif
7272 #ifdef TARGET_NR_security
7273 case TARGET_NR_security:
7274 goto unimplemented;
7275 #endif
7276 #ifdef TARGET_NR_getpagesize
7277 case TARGET_NR_getpagesize:
7278 ret = TARGET_PAGE_SIZE;
7279 break;
7280 #endif
7281 case TARGET_NR_gettid:
7282 ret = get_errno(gettid());
7283 break;
7284 #ifdef TARGET_NR_readahead
7285 case TARGET_NR_readahead:
7286 #if TARGET_ABI_BITS == 32
7287 #ifdef TARGET_ARM
7288 if (((CPUARMState *)cpu_env)->eabi)
7289 {
7290 arg2 = arg3;
7291 arg3 = arg4;
7292 arg4 = arg5;
7293 }
7294 #endif
7295 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
7296 #else
7297 ret = get_errno(readahead(arg1, arg2, arg3));
7298 #endif
7299 break;
7300 #endif
7301 #ifdef TARGET_NR_setxattr
7302 case TARGET_NR_setxattr:
7303 case TARGET_NR_lsetxattr:
7304 case TARGET_NR_fsetxattr:
7305 case TARGET_NR_getxattr:
7306 case TARGET_NR_lgetxattr:
7307 case TARGET_NR_fgetxattr:
7308 case TARGET_NR_listxattr:
7309 case TARGET_NR_llistxattr:
7310 case TARGET_NR_flistxattr:
7311 case TARGET_NR_removexattr:
7312 case TARGET_NR_lremovexattr:
7313 case TARGET_NR_fremovexattr:
7314 ret = -TARGET_EOPNOTSUPP;
7315 break;
7316 #endif
7317 #ifdef TARGET_NR_set_thread_area
7318 case TARGET_NR_set_thread_area:
7319 #if defined(TARGET_MIPS)
7320 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
7321 ret = 0;
7322 break;
7323 #elif defined(TARGET_CRIS)
7324 if (arg1 & 0xff)
7325 ret = -TARGET_EINVAL;
7326 else {
7327 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
7328 ret = 0;
7329 }
7330 break;
7331 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
7332 ret = do_set_thread_area(cpu_env, arg1);
7333 break;
7334 #else
7335 goto unimplemented_nowarn;
7336 #endif
7337 #endif
7338 #ifdef TARGET_NR_get_thread_area
7339 case TARGET_NR_get_thread_area:
7340 #if defined(TARGET_I386) && defined(TARGET_ABI32)
7341 ret = do_get_thread_area(cpu_env, arg1);
7342 #else
7343 goto unimplemented_nowarn;
7344 #endif
7345 #endif
7346 #ifdef TARGET_NR_getdomainname
7347 case TARGET_NR_getdomainname:
7348 goto unimplemented_nowarn;
7349 #endif
7350
7351 #ifdef TARGET_NR_clock_gettime
7352 case TARGET_NR_clock_gettime:
7353 {
7354 struct timespec ts;
7355 ret = get_errno(clock_gettime(arg1, &ts));
7356 if (!is_error(ret)) {
7357 host_to_target_timespec(arg2, &ts);
7358 }
7359 break;
7360 }
7361 #endif
7362 #ifdef TARGET_NR_clock_getres
7363 case TARGET_NR_clock_getres:
7364 {
7365 struct timespec ts;
7366 ret = get_errno(clock_getres(arg1, &ts));
7367 if (!is_error(ret)) {
7368 host_to_target_timespec(arg2, &ts);
7369 }
7370 break;
7371 }
7372 #endif
7373 #ifdef TARGET_NR_clock_nanosleep
7374 case TARGET_NR_clock_nanosleep:
7375 {
7376 struct timespec ts;
7377 target_to_host_timespec(&ts, arg3);
7378 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
7379 if (arg4)
7380 host_to_target_timespec(arg4, &ts);
7381 break;
7382 }
7383 #endif
7384
7385 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
7386 case TARGET_NR_set_tid_address:
7387 ret = get_errno(set_tid_address((int *)g2h(arg1)));
7388 break;
7389 #endif
7390
7391 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
7392 case TARGET_NR_tkill:
7393 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
7394 break;
7395 #endif
7396
7397 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
7398 case TARGET_NR_tgkill:
7399 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
7400 target_to_host_signal(arg3)));
7401 break;
7402 #endif
7403
7404 #ifdef TARGET_NR_set_robust_list
7405 case TARGET_NR_set_robust_list:
7406 goto unimplemented_nowarn;
7407 #endif
7408
7409 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
7410 case TARGET_NR_utimensat:
7411 {
7412 struct timespec *tsp, ts[2];
7413 if (!arg3) {
7414 tsp = NULL;
7415 } else {
7416 target_to_host_timespec(ts, arg3);
7417 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
7418 tsp = ts;
7419 }
7420 if (!arg2)
7421 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
7422 else {
7423 if (!(p = lock_user_string(arg2))) {
7424 ret = -TARGET_EFAULT;
7425 goto fail;
7426 }
7427 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
7428 unlock_user(p, arg2, 0);
7429 }
7430 }
7431 break;
7432 #endif
7433 #if defined(CONFIG_USE_NPTL)
7434 case TARGET_NR_futex:
7435 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
7436 break;
7437 #endif
7438 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
7439 case TARGET_NR_inotify_init:
7440 ret = get_errno(sys_inotify_init());
7441 break;
7442 #endif
7443 #ifdef CONFIG_INOTIFY1
7444 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
7445 case TARGET_NR_inotify_init1:
7446 ret = get_errno(sys_inotify_init1(arg1));
7447 break;
7448 #endif
7449 #endif
7450 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
7451 case TARGET_NR_inotify_add_watch:
7452 p = lock_user_string(arg2);
7453 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
7454 unlock_user(p, arg2, 0);
7455 break;
7456 #endif
7457 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
7458 case TARGET_NR_inotify_rm_watch:
7459 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
7460 break;
7461 #endif
7462
7463 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
7464 case TARGET_NR_mq_open:
7465 {
7466 struct mq_attr posix_mq_attr;
7467
7468 p = lock_user_string(arg1 - 1);
7469 if (arg4 != 0)
7470 copy_from_user_mq_attr (&posix_mq_attr, arg4);
7471 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
7472 unlock_user (p, arg1, 0);
7473 }
7474 break;
7475
7476 case TARGET_NR_mq_unlink:
7477 p = lock_user_string(arg1 - 1);
7478 ret = get_errno(mq_unlink(p));
7479 unlock_user (p, arg1, 0);
7480 break;
7481
7482 case TARGET_NR_mq_timedsend:
7483 {
7484 struct timespec ts;
7485
7486 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7487 if (arg5 != 0) {
7488 target_to_host_timespec(&ts, arg5);
7489 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
7490 host_to_target_timespec(arg5, &ts);
7491 }
7492 else
7493 ret = get_errno(mq_send(arg1, p, arg3, arg4));
7494 unlock_user (p, arg2, arg3);
7495 }
7496 break;
7497
7498 case TARGET_NR_mq_timedreceive:
7499 {
7500 struct timespec ts;
7501 unsigned int prio;
7502
7503 p = lock_user (VERIFY_READ, arg2, arg3, 1);
7504 if (arg5 != 0) {
7505 target_to_host_timespec(&ts, arg5);
7506 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
7507 host_to_target_timespec(arg5, &ts);
7508 }
7509 else
7510 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
7511 unlock_user (p, arg2, arg3);
7512 if (arg4 != 0)
7513 put_user_u32(prio, arg4);
7514 }
7515 break;
7516
7517 /* Not implemented for now... */
7518 /* case TARGET_NR_mq_notify: */
7519 /* break; */
7520
7521 case TARGET_NR_mq_getsetattr:
7522 {
7523 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
7524 ret = 0;
7525 if (arg3 != 0) {
7526 ret = mq_getattr(arg1, &posix_mq_attr_out);
7527 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
7528 }
7529 if (arg2 != 0) {
7530 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
7531 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
7532 }
7533
7534 }
7535 break;
7536 #endif
7537
7538 #ifdef CONFIG_SPLICE
7539 #ifdef TARGET_NR_tee
7540 case TARGET_NR_tee:
7541 {
7542 ret = get_errno(tee(arg1,arg2,arg3,arg4));
7543 }
7544 break;
7545 #endif
7546 #ifdef TARGET_NR_splice
7547 case TARGET_NR_splice:
7548 {
7549 loff_t loff_in, loff_out;
7550 loff_t *ploff_in = NULL, *ploff_out = NULL;
7551 if(arg2) {
7552 get_user_u64(loff_in, arg2);
7553 ploff_in = &loff_in;
7554 }
7555 if(arg4) {
7556 get_user_u64(loff_out, arg2);
7557 ploff_out = &loff_out;
7558 }
7559 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
7560 }
7561 break;
7562 #endif
7563 #ifdef TARGET_NR_vmsplice
7564 case TARGET_NR_vmsplice:
7565 {
7566 int count = arg3;
7567 struct iovec *vec;
7568
7569 vec = alloca(count * sizeof(struct iovec));
7570 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
7571 goto efault;
7572 ret = get_errno(vmsplice(arg1, vec, count, arg4));
7573 unlock_iovec(vec, arg2, count, 0);
7574 }
7575 break;
7576 #endif
7577 #endif /* CONFIG_SPLICE */
7578 #ifdef CONFIG_EVENTFD
7579 #if defined(TARGET_NR_eventfd)
7580 case TARGET_NR_eventfd:
7581 ret = get_errno(eventfd(arg1, 0));
7582 break;
7583 #endif
7584 #if defined(TARGET_NR_eventfd2)
7585 case TARGET_NR_eventfd2:
7586 ret = get_errno(eventfd(arg1, arg2));
7587 break;
7588 #endif
7589 #endif /* CONFIG_EVENTFD */
7590 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
7591 case TARGET_NR_fallocate:
7592 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
7593 break;
7594 #endif
7595 #if defined(CONFIG_SYNC_FILE_RANGE)
7596 #if defined(TARGET_NR_sync_file_range)
7597 case TARGET_NR_sync_file_range:
7598 #if TARGET_ABI_BITS == 32
7599 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
7600 target_offset64(arg4, arg5), arg6));
7601 #else
7602 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
7603 #endif
7604 break;
7605 #endif
7606 #if defined(TARGET_NR_sync_file_range2)
7607 case TARGET_NR_sync_file_range2:
7608 /* This is like sync_file_range but the arguments are reordered */
7609 #if TARGET_ABI_BITS == 32
7610 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
7611 target_offset64(arg5, arg6), arg2));
7612 #else
7613 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
7614 #endif
7615 break;
7616 #endif
7617 #endif
7618 #if defined(CONFIG_EPOLL)
7619 #if defined(TARGET_NR_epoll_create)
7620 case TARGET_NR_epoll_create:
7621 ret = get_errno(epoll_create(arg1));
7622 break;
7623 #endif
7624 #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
7625 case TARGET_NR_epoll_create1:
7626 ret = get_errno(epoll_create1(arg1));
7627 break;
7628 #endif
7629 #if defined(TARGET_NR_epoll_ctl)
7630 case TARGET_NR_epoll_ctl:
7631 {
7632 struct epoll_event ep;
7633 struct epoll_event *epp = 0;
7634 if (arg4) {
7635 struct target_epoll_event *target_ep;
7636 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
7637 goto efault;
7638 }
7639 ep.events = tswap32(target_ep->events);
7640 /* The epoll_data_t union is just opaque data to the kernel,
7641 * so we transfer all 64 bits across and need not worry what
7642 * actual data type it is.
7643 */
7644 ep.data.u64 = tswap64(target_ep->data.u64);
7645 unlock_user_struct(target_ep, arg4, 0);
7646 epp = &ep;
7647 }
7648 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
7649 break;
7650 }
7651 #endif
7652
7653 #if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
7654 #define IMPLEMENT_EPOLL_PWAIT
7655 #endif
7656 #if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
7657 #if defined(TARGET_NR_epoll_wait)
7658 case TARGET_NR_epoll_wait:
7659 #endif
7660 #if defined(IMPLEMENT_EPOLL_PWAIT)
7661 case TARGET_NR_epoll_pwait:
7662 #endif
7663 {
7664 struct target_epoll_event *target_ep;
7665 struct epoll_event *ep;
7666 int epfd = arg1;
7667 int maxevents = arg3;
7668 int timeout = arg4;
7669
7670 target_ep = lock_user(VERIFY_WRITE, arg2,
7671 maxevents * sizeof(struct target_epoll_event), 1);
7672 if (!target_ep) {
7673 goto efault;
7674 }
7675
7676 ep = alloca(maxevents * sizeof(struct epoll_event));
7677
7678 switch (num) {
7679 #if defined(IMPLEMENT_EPOLL_PWAIT)
7680 case TARGET_NR_epoll_pwait:
7681 {
7682 target_sigset_t *target_set;
7683 sigset_t _set, *set = &_set;
7684
7685 if (arg5) {
7686 target_set = lock_user(VERIFY_READ, arg5,
7687 sizeof(target_sigset_t), 1);
7688 if (!target_set) {
7689 unlock_user(target_ep, arg2, 0);
7690 goto efault;
7691 }
7692 target_to_host_sigset(set, target_set);
7693 unlock_user(target_set, arg5, 0);
7694 } else {
7695 set = NULL;
7696 }
7697
7698 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
7699 break;
7700 }
7701 #endif
7702 #if defined(TARGET_NR_epoll_wait)
7703 case TARGET_NR_epoll_wait:
7704 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
7705 break;
7706 #endif
7707 default:
7708 ret = -TARGET_ENOSYS;
7709 }
7710 if (!is_error(ret)) {
7711 int i;
7712 for (i = 0; i < ret; i++) {
7713 target_ep[i].events = tswap32(ep[i].events);
7714 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
7715 }
7716 }
7717 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
7718 break;
7719 }
7720 #endif
7721 #endif
7722 default:
7723 unimplemented:
7724 gemu_log("qemu: Unsupported syscall: %d\n", num);
7725 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
7726 unimplemented_nowarn:
7727 #endif
7728 ret = -TARGET_ENOSYS;
7729 break;
7730 }
7731 fail:
7732 #ifdef DEBUG
7733 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
7734 #endif
7735 if(do_strace)
7736 print_syscall_ret(num, ret);
7737 return ret;
7738 efault:
7739 ret = -TARGET_EFAULT;
7740 goto fail;
7741 }
AR7 emulation for QEMU