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Don't error out on zero-length chunks in writev, as to mimic Linux (Kirill A. Shutemov).
[qemu.git] / linux-user / syscall.c
1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
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 <sys/types.h>
31 #include <sys/ipc.h>
32 #include <sys/msg.h>
33 #include <sys/wait.h>
34 #include <sys/time.h>
35 #include <sys/stat.h>
36 #include <sys/mount.h>
37 #include <sys/prctl.h>
38 #include <sys/resource.h>
39 #include <sys/mman.h>
40 #include <sys/swap.h>
41 #include <signal.h>
42 #include <sched.h>
43 #include <sys/socket.h>
44 #include <sys/uio.h>
45 #include <sys/poll.h>
46 #include <sys/times.h>
47 #include <sys/shm.h>
48 #include <sys/sem.h>
49 #include <sys/statfs.h>
50 #include <utime.h>
51 #include <sys/sysinfo.h>
52 //#include <sys/user.h>
53 #include <netinet/ip.h>
54 #include <netinet/tcp.h>
55
56 #define termios host_termios
57 #define winsize host_winsize
58 #define termio host_termio
59 #define sgttyb host_sgttyb /* same as target */
60 #define tchars host_tchars /* same as target */
61 #define ltchars host_ltchars /* same as target */
62
63 #include <linux/termios.h>
64 #include <linux/unistd.h>
65 #include <linux/utsname.h>
66 #include <linux/cdrom.h>
67 #include <linux/hdreg.h>
68 #include <linux/soundcard.h>
69 #include <linux/dirent.h>
70 #include <linux/kd.h>
71
72 #include "qemu.h"
73
74 //#define DEBUG
75
76 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
77 || defined(TARGET_M68K) || defined(TARGET_SH4) || defined(TARGET_CRIS)
78 /* 16 bit uid wrappers emulation */
79 #define USE_UID16
80 #endif
81
82 //#include <linux/msdos_fs.h>
83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
84 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
85
86
87 #undef _syscall0
88 #undef _syscall1
89 #undef _syscall2
90 #undef _syscall3
91 #undef _syscall4
92 #undef _syscall5
93 #undef _syscall6
94
95 #define _syscall0(type,name) \
96 type name (void) \
97 { \
98 return syscall(__NR_##name); \
99 }
100
101 #define _syscall1(type,name,type1,arg1) \
102 type name (type1 arg1) \
103 { \
104 return syscall(__NR_##name, arg1); \
105 }
106
107 #define _syscall2(type,name,type1,arg1,type2,arg2) \
108 type name (type1 arg1,type2 arg2) \
109 { \
110 return syscall(__NR_##name, arg1, arg2); \
111 }
112
113 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
114 type name (type1 arg1,type2 arg2,type3 arg3) \
115 { \
116 return syscall(__NR_##name, arg1, arg2, arg3); \
117 }
118
119 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
120 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
121 { \
122 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
123 }
124
125 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
126 type5,arg5) \
127 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
128 { \
129 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
130 }
131
132
133 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
134 type5,arg5,type6,arg6) \
135 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
136 { \
137 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
138 }
139
140
141 #define __NR_sys_uname __NR_uname
142 #define __NR_sys_faccessat __NR_faccessat
143 #define __NR_sys_fchmodat __NR_fchmodat
144 #define __NR_sys_fchownat __NR_fchownat
145 #define __NR_sys_getcwd1 __NR_getcwd
146 #define __NR_sys_getdents __NR_getdents
147 #define __NR_sys_getdents64 __NR_getdents64
148 #define __NR_sys_getpriority __NR_getpriority
149 #define __NR_sys_linkat __NR_linkat
150 #define __NR_sys_mkdirat __NR_mkdirat
151 #define __NR_sys_mknodat __NR_mknodat
152 #define __NR_sys_openat __NR_openat
153 #define __NR_sys_readlinkat __NR_readlinkat
154 #define __NR_sys_renameat __NR_renameat
155 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
156 #define __NR_sys_symlinkat __NR_symlinkat
157 #define __NR_sys_syslog __NR_syslog
158 #define __NR_sys_tgkill __NR_tgkill
159 #define __NR_sys_tkill __NR_tkill
160 #define __NR_sys_unlinkat __NR_unlinkat
161 #define __NR_sys_utimensat __NR_utimensat
162
163 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
164 #define __NR__llseek __NR_lseek
165 #endif
166
167 #ifdef __NR_gettid
168 _syscall0(int, gettid)
169 #else
170 /* This is a replacement for the host gettid() and must return a host
171 errno. */
172 static int gettid(void) {
173 return -ENOSYS;
174 }
175 #endif
176 _syscall1(int,sys_uname,struct new_utsname *,buf)
177 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
178 _syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
179 #endif
180 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
181 _syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
182 mode_t,mode,int,flags)
183 #endif
184 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
185 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
186 uid_t,owner,gid_t,group,int,flags)
187 #endif
188 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
189 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
190 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
191 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
192 #endif
193 _syscall2(int, sys_getpriority, int, which, int, who);
194 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
195 loff_t *, res, uint, wh);
196 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
197 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
198 int,newdirfd,const char *,newpath,int,flags)
199 #endif
200 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
201 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
202 #endif
203 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
204 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
205 mode_t,mode,dev_t,dev)
206 #endif
207 #if defined(TARGET_NR_openat) && defined(__NR_openat)
208 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
209 #endif
210 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
211 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
212 char *,buf,size_t,bufsize)
213 #endif
214 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
215 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
216 int,newdirfd,const char *,newpath)
217 #endif
218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
219 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
220 _syscall3(int,sys_symlinkat,const char *,oldpath,
221 int,newdirfd,const char *,newpath)
222 #endif
223 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
224 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
225 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
226 #endif
227 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
228 _syscall2(int,sys_tkill,int,tid,int,sig)
229 #endif
230 #ifdef __NR_exit_group
231 _syscall1(int,exit_group,int,error_code)
232 #endif
233 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
234 _syscall1(int,set_tid_address,int *,tidptr)
235 #endif
236 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
237 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
238 #endif
239 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
240 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
241 const struct timespec *,tsp,int,flags)
242 #endif
243
244 extern int personality(int);
245 extern int flock(int, int);
246 extern int setfsuid(int);
247 extern int setfsgid(int);
248 extern int setresuid(uid_t, uid_t, uid_t);
249 extern int getresuid(uid_t *, uid_t *, uid_t *);
250 extern int setresgid(gid_t, gid_t, gid_t);
251 extern int getresgid(gid_t *, gid_t *, gid_t *);
252 extern int setgroups(int, gid_t *);
253
254 #define ERRNO_TABLE_SIZE 1200
255
256 /* target_to_host_errno_table[] is initialized from
257 * host_to_target_errno_table[] in syscall_init(). */
258 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
259 };
260
261 /*
262 * This list is the union of errno values overridden in asm-<arch>/errno.h
263 * minus the errnos that are not actually generic to all archs.
264 */
265 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
266 [EIDRM] = TARGET_EIDRM,
267 [ECHRNG] = TARGET_ECHRNG,
268 [EL2NSYNC] = TARGET_EL2NSYNC,
269 [EL3HLT] = TARGET_EL3HLT,
270 [EL3RST] = TARGET_EL3RST,
271 [ELNRNG] = TARGET_ELNRNG,
272 [EUNATCH] = TARGET_EUNATCH,
273 [ENOCSI] = TARGET_ENOCSI,
274 [EL2HLT] = TARGET_EL2HLT,
275 [EDEADLK] = TARGET_EDEADLK,
276 [ENOLCK] = TARGET_ENOLCK,
277 [EBADE] = TARGET_EBADE,
278 [EBADR] = TARGET_EBADR,
279 [EXFULL] = TARGET_EXFULL,
280 [ENOANO] = TARGET_ENOANO,
281 [EBADRQC] = TARGET_EBADRQC,
282 [EBADSLT] = TARGET_EBADSLT,
283 [EBFONT] = TARGET_EBFONT,
284 [ENOSTR] = TARGET_ENOSTR,
285 [ENODATA] = TARGET_ENODATA,
286 [ETIME] = TARGET_ETIME,
287 [ENOSR] = TARGET_ENOSR,
288 [ENONET] = TARGET_ENONET,
289 [ENOPKG] = TARGET_ENOPKG,
290 [EREMOTE] = TARGET_EREMOTE,
291 [ENOLINK] = TARGET_ENOLINK,
292 [EADV] = TARGET_EADV,
293 [ESRMNT] = TARGET_ESRMNT,
294 [ECOMM] = TARGET_ECOMM,
295 [EPROTO] = TARGET_EPROTO,
296 [EDOTDOT] = TARGET_EDOTDOT,
297 [EMULTIHOP] = TARGET_EMULTIHOP,
298 [EBADMSG] = TARGET_EBADMSG,
299 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
300 [EOVERFLOW] = TARGET_EOVERFLOW,
301 [ENOTUNIQ] = TARGET_ENOTUNIQ,
302 [EBADFD] = TARGET_EBADFD,
303 [EREMCHG] = TARGET_EREMCHG,
304 [ELIBACC] = TARGET_ELIBACC,
305 [ELIBBAD] = TARGET_ELIBBAD,
306 [ELIBSCN] = TARGET_ELIBSCN,
307 [ELIBMAX] = TARGET_ELIBMAX,
308 [ELIBEXEC] = TARGET_ELIBEXEC,
309 [EILSEQ] = TARGET_EILSEQ,
310 [ENOSYS] = TARGET_ENOSYS,
311 [ELOOP] = TARGET_ELOOP,
312 [ERESTART] = TARGET_ERESTART,
313 [ESTRPIPE] = TARGET_ESTRPIPE,
314 [ENOTEMPTY] = TARGET_ENOTEMPTY,
315 [EUSERS] = TARGET_EUSERS,
316 [ENOTSOCK] = TARGET_ENOTSOCK,
317 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
318 [EMSGSIZE] = TARGET_EMSGSIZE,
319 [EPROTOTYPE] = TARGET_EPROTOTYPE,
320 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
321 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
322 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
323 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
324 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
325 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
326 [EADDRINUSE] = TARGET_EADDRINUSE,
327 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
328 [ENETDOWN] = TARGET_ENETDOWN,
329 [ENETUNREACH] = TARGET_ENETUNREACH,
330 [ENETRESET] = TARGET_ENETRESET,
331 [ECONNABORTED] = TARGET_ECONNABORTED,
332 [ECONNRESET] = TARGET_ECONNRESET,
333 [ENOBUFS] = TARGET_ENOBUFS,
334 [EISCONN] = TARGET_EISCONN,
335 [ENOTCONN] = TARGET_ENOTCONN,
336 [EUCLEAN] = TARGET_EUCLEAN,
337 [ENOTNAM] = TARGET_ENOTNAM,
338 [ENAVAIL] = TARGET_ENAVAIL,
339 [EISNAM] = TARGET_EISNAM,
340 [EREMOTEIO] = TARGET_EREMOTEIO,
341 [ESHUTDOWN] = TARGET_ESHUTDOWN,
342 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
343 [ETIMEDOUT] = TARGET_ETIMEDOUT,
344 [ECONNREFUSED] = TARGET_ECONNREFUSED,
345 [EHOSTDOWN] = TARGET_EHOSTDOWN,
346 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
347 [EALREADY] = TARGET_EALREADY,
348 [EINPROGRESS] = TARGET_EINPROGRESS,
349 [ESTALE] = TARGET_ESTALE,
350 [ECANCELED] = TARGET_ECANCELED,
351 [ENOMEDIUM] = TARGET_ENOMEDIUM,
352 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
353 #ifdef ENOKEY
354 [ENOKEY] = TARGET_ENOKEY,
355 #endif
356 #ifdef EKEYEXPIRED
357 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
358 #endif
359 #ifdef EKEYREVOKED
360 [EKEYREVOKED] = TARGET_EKEYREVOKED,
361 #endif
362 #ifdef EKEYREJECTED
363 [EKEYREJECTED] = TARGET_EKEYREJECTED,
364 #endif
365 #ifdef EOWNERDEAD
366 [EOWNERDEAD] = TARGET_EOWNERDEAD,
367 #endif
368 #ifdef ENOTRECOVERABLE
369 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
370 #endif
371 };
372
373 static inline int host_to_target_errno(int err)
374 {
375 if(host_to_target_errno_table[err])
376 return host_to_target_errno_table[err];
377 return err;
378 }
379
380 static inline int target_to_host_errno(int err)
381 {
382 if (target_to_host_errno_table[err])
383 return target_to_host_errno_table[err];
384 return err;
385 }
386
387 static inline abi_long get_errno(abi_long ret)
388 {
389 if (ret == -1)
390 return -host_to_target_errno(errno);
391 else
392 return ret;
393 }
394
395 static inline int is_error(abi_long ret)
396 {
397 return (abi_ulong)ret >= (abi_ulong)(-4096);
398 }
399
400 char *target_strerror(int err)
401 {
402 return strerror(target_to_host_errno(err));
403 }
404
405 static abi_ulong target_brk;
406 static abi_ulong target_original_brk;
407
408 void target_set_brk(abi_ulong new_brk)
409 {
410 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
411 }
412
413 /* do_brk() must return target values and target errnos. */
414 abi_long do_brk(abi_ulong new_brk)
415 {
416 abi_ulong brk_page;
417 abi_long mapped_addr;
418 int new_alloc_size;
419
420 if (!new_brk)
421 return target_brk;
422 if (new_brk < target_original_brk)
423 return -TARGET_ENOMEM;
424
425 brk_page = HOST_PAGE_ALIGN(target_brk);
426
427 /* If the new brk is less than this, set it and we're done... */
428 if (new_brk < brk_page) {
429 target_brk = new_brk;
430 return target_brk;
431 }
432
433 /* We need to allocate more memory after the brk... */
434 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
435 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
436 PROT_READ|PROT_WRITE,
437 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
438 if (is_error(mapped_addr)) {
439 return mapped_addr;
440 } else {
441 target_brk = new_brk;
442 return target_brk;
443 }
444 }
445
446 static inline abi_long copy_from_user_fdset(fd_set *fds,
447 abi_ulong target_fds_addr,
448 int n)
449 {
450 int i, nw, j, k;
451 abi_ulong b, *target_fds;
452
453 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
454 if (!(target_fds = lock_user(VERIFY_READ,
455 target_fds_addr,
456 sizeof(abi_ulong) * nw,
457 1)))
458 return -TARGET_EFAULT;
459
460 FD_ZERO(fds);
461 k = 0;
462 for (i = 0; i < nw; i++) {
463 /* grab the abi_ulong */
464 __get_user(b, &target_fds[i]);
465 for (j = 0; j < TARGET_ABI_BITS; j++) {
466 /* check the bit inside the abi_ulong */
467 if ((b >> j) & 1)
468 FD_SET(k, fds);
469 k++;
470 }
471 }
472
473 unlock_user(target_fds, target_fds_addr, 0);
474
475 return 0;
476 }
477
478 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
479 const fd_set *fds,
480 int n)
481 {
482 int i, nw, j, k;
483 abi_long v;
484 abi_ulong *target_fds;
485
486 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
487 if (!(target_fds = lock_user(VERIFY_WRITE,
488 target_fds_addr,
489 sizeof(abi_ulong) * nw,
490 0)))
491 return -TARGET_EFAULT;
492
493 k = 0;
494 for (i = 0; i < nw; i++) {
495 v = 0;
496 for (j = 0; j < TARGET_ABI_BITS; j++) {
497 v |= ((FD_ISSET(k, fds) != 0) << j);
498 k++;
499 }
500 __put_user(v, &target_fds[i]);
501 }
502
503 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
504
505 return 0;
506 }
507
508 #if defined(__alpha__)
509 #define HOST_HZ 1024
510 #else
511 #define HOST_HZ 100
512 #endif
513
514 static inline abi_long host_to_target_clock_t(long ticks)
515 {
516 #if HOST_HZ == TARGET_HZ
517 return ticks;
518 #else
519 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
520 #endif
521 }
522
523 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
524 const struct rusage *rusage)
525 {
526 struct target_rusage *target_rusage;
527
528 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
529 return -TARGET_EFAULT;
530 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
531 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
532 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
533 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
534 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
535 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
536 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
537 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
538 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
539 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
540 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
541 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
542 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
543 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
544 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
545 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
546 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
547 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
548 unlock_user_struct(target_rusage, target_addr, 1);
549
550 return 0;
551 }
552
553 static inline abi_long copy_from_user_timeval(struct timeval *tv,
554 abi_ulong target_tv_addr)
555 {
556 struct target_timeval *target_tv;
557
558 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
559 return -TARGET_EFAULT;
560
561 __get_user(tv->tv_sec, &target_tv->tv_sec);
562 __get_user(tv->tv_usec, &target_tv->tv_usec);
563
564 unlock_user_struct(target_tv, target_tv_addr, 0);
565
566 return 0;
567 }
568
569 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
570 const struct timeval *tv)
571 {
572 struct target_timeval *target_tv;
573
574 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
575 return -TARGET_EFAULT;
576
577 __put_user(tv->tv_sec, &target_tv->tv_sec);
578 __put_user(tv->tv_usec, &target_tv->tv_usec);
579
580 unlock_user_struct(target_tv, target_tv_addr, 1);
581
582 return 0;
583 }
584
585
586 /* do_select() must return target values and target errnos. */
587 static abi_long do_select(int n,
588 abi_ulong rfd_addr, abi_ulong wfd_addr,
589 abi_ulong efd_addr, abi_ulong target_tv_addr)
590 {
591 fd_set rfds, wfds, efds;
592 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
593 struct timeval tv, *tv_ptr;
594 abi_long ret;
595
596 if (rfd_addr) {
597 if (copy_from_user_fdset(&rfds, rfd_addr, n))
598 return -TARGET_EFAULT;
599 rfds_ptr = &rfds;
600 } else {
601 rfds_ptr = NULL;
602 }
603 if (wfd_addr) {
604 if (copy_from_user_fdset(&wfds, wfd_addr, n))
605 return -TARGET_EFAULT;
606 wfds_ptr = &wfds;
607 } else {
608 wfds_ptr = NULL;
609 }
610 if (efd_addr) {
611 if (copy_from_user_fdset(&efds, efd_addr, n))
612 return -TARGET_EFAULT;
613 efds_ptr = &efds;
614 } else {
615 efds_ptr = NULL;
616 }
617
618 if (target_tv_addr) {
619 if (copy_from_user_timeval(&tv, target_tv_addr))
620 return -TARGET_EFAULT;
621 tv_ptr = &tv;
622 } else {
623 tv_ptr = NULL;
624 }
625
626 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
627
628 if (!is_error(ret)) {
629 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
630 return -TARGET_EFAULT;
631 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
632 return -TARGET_EFAULT;
633 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
634 return -TARGET_EFAULT;
635
636 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
637 return -TARGET_EFAULT;
638 }
639
640 return ret;
641 }
642
643 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
644 abi_ulong target_addr,
645 socklen_t len)
646 {
647 struct target_sockaddr *target_saddr;
648
649 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
650 if (!target_saddr)
651 return -TARGET_EFAULT;
652 memcpy(addr, target_saddr, len);
653 addr->sa_family = tswap16(target_saddr->sa_family);
654 unlock_user(target_saddr, target_addr, 0);
655
656 return 0;
657 }
658
659 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
660 struct sockaddr *addr,
661 socklen_t len)
662 {
663 struct target_sockaddr *target_saddr;
664
665 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
666 if (!target_saddr)
667 return -TARGET_EFAULT;
668 memcpy(target_saddr, addr, len);
669 target_saddr->sa_family = tswap16(addr->sa_family);
670 unlock_user(target_saddr, target_addr, len);
671
672 return 0;
673 }
674
675 /* ??? Should this also swap msgh->name? */
676 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
677 struct target_msghdr *target_msgh)
678 {
679 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
680 abi_long msg_controllen;
681 abi_ulong target_cmsg_addr;
682 struct target_cmsghdr *target_cmsg;
683 socklen_t space = 0;
684
685 msg_controllen = tswapl(target_msgh->msg_controllen);
686 if (msg_controllen < sizeof (struct target_cmsghdr))
687 goto the_end;
688 target_cmsg_addr = tswapl(target_msgh->msg_control);
689 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
690 if (!target_cmsg)
691 return -TARGET_EFAULT;
692
693 while (cmsg && target_cmsg) {
694 void *data = CMSG_DATA(cmsg);
695 void *target_data = TARGET_CMSG_DATA(target_cmsg);
696
697 int len = tswapl(target_cmsg->cmsg_len)
698 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
699
700 space += CMSG_SPACE(len);
701 if (space > msgh->msg_controllen) {
702 space -= CMSG_SPACE(len);
703 gemu_log("Host cmsg overflow\n");
704 break;
705 }
706
707 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
708 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
709 cmsg->cmsg_len = CMSG_LEN(len);
710
711 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
712 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
713 memcpy(data, target_data, len);
714 } else {
715 int *fd = (int *)data;
716 int *target_fd = (int *)target_data;
717 int i, numfds = len / sizeof(int);
718
719 for (i = 0; i < numfds; i++)
720 fd[i] = tswap32(target_fd[i]);
721 }
722
723 cmsg = CMSG_NXTHDR(msgh, cmsg);
724 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
725 }
726 unlock_user(target_cmsg, target_cmsg_addr, 0);
727 the_end:
728 msgh->msg_controllen = space;
729 return 0;
730 }
731
732 /* ??? Should this also swap msgh->name? */
733 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
734 struct msghdr *msgh)
735 {
736 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
737 abi_long msg_controllen;
738 abi_ulong target_cmsg_addr;
739 struct target_cmsghdr *target_cmsg;
740 socklen_t space = 0;
741
742 msg_controllen = tswapl(target_msgh->msg_controllen);
743 if (msg_controllen < sizeof (struct target_cmsghdr))
744 goto the_end;
745 target_cmsg_addr = tswapl(target_msgh->msg_control);
746 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
747 if (!target_cmsg)
748 return -TARGET_EFAULT;
749
750 while (cmsg && target_cmsg) {
751 void *data = CMSG_DATA(cmsg);
752 void *target_data = TARGET_CMSG_DATA(target_cmsg);
753
754 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
755
756 space += TARGET_CMSG_SPACE(len);
757 if (space > msg_controllen) {
758 space -= TARGET_CMSG_SPACE(len);
759 gemu_log("Target cmsg overflow\n");
760 break;
761 }
762
763 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
764 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
765 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
766
767 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
768 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
769 memcpy(target_data, data, len);
770 } else {
771 int *fd = (int *)data;
772 int *target_fd = (int *)target_data;
773 int i, numfds = len / sizeof(int);
774
775 for (i = 0; i < numfds; i++)
776 target_fd[i] = tswap32(fd[i]);
777 }
778
779 cmsg = CMSG_NXTHDR(msgh, cmsg);
780 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
781 }
782 unlock_user(target_cmsg, target_cmsg_addr, space);
783 the_end:
784 target_msgh->msg_controllen = tswapl(space);
785 return 0;
786 }
787
788 /* do_setsockopt() Must return target values and target errnos. */
789 static abi_long do_setsockopt(int sockfd, int level, int optname,
790 abi_ulong optval_addr, socklen_t optlen)
791 {
792 abi_long ret;
793 int val;
794
795 switch(level) {
796 case SOL_TCP:
797 /* TCP options all take an 'int' value. */
798 if (optlen < sizeof(uint32_t))
799 return -TARGET_EINVAL;
800
801 if (get_user_u32(val, optval_addr))
802 return -TARGET_EFAULT;
803 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
804 break;
805 case SOL_IP:
806 switch(optname) {
807 case IP_TOS:
808 case IP_TTL:
809 case IP_HDRINCL:
810 case IP_ROUTER_ALERT:
811 case IP_RECVOPTS:
812 case IP_RETOPTS:
813 case IP_PKTINFO:
814 case IP_MTU_DISCOVER:
815 case IP_RECVERR:
816 case IP_RECVTOS:
817 #ifdef IP_FREEBIND
818 case IP_FREEBIND:
819 #endif
820 case IP_MULTICAST_TTL:
821 case IP_MULTICAST_LOOP:
822 val = 0;
823 if (optlen >= sizeof(uint32_t)) {
824 if (get_user_u32(val, optval_addr))
825 return -TARGET_EFAULT;
826 } else if (optlen >= 1) {
827 if (get_user_u8(val, optval_addr))
828 return -TARGET_EFAULT;
829 }
830 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
831 break;
832 default:
833 goto unimplemented;
834 }
835 break;
836 case TARGET_SOL_SOCKET:
837 switch (optname) {
838 /* Options with 'int' argument. */
839 case TARGET_SO_DEBUG:
840 optname = SO_DEBUG;
841 break;
842 case TARGET_SO_REUSEADDR:
843 optname = SO_REUSEADDR;
844 break;
845 case TARGET_SO_TYPE:
846 optname = SO_TYPE;
847 break;
848 case TARGET_SO_ERROR:
849 optname = SO_ERROR;
850 break;
851 case TARGET_SO_DONTROUTE:
852 optname = SO_DONTROUTE;
853 break;
854 case TARGET_SO_BROADCAST:
855 optname = SO_BROADCAST;
856 break;
857 case TARGET_SO_SNDBUF:
858 optname = SO_SNDBUF;
859 break;
860 case TARGET_SO_RCVBUF:
861 optname = SO_RCVBUF;
862 break;
863 case TARGET_SO_KEEPALIVE:
864 optname = SO_KEEPALIVE;
865 break;
866 case TARGET_SO_OOBINLINE:
867 optname = SO_OOBINLINE;
868 break;
869 case TARGET_SO_NO_CHECK:
870 optname = SO_NO_CHECK;
871 break;
872 case TARGET_SO_PRIORITY:
873 optname = SO_PRIORITY;
874 break;
875 #ifdef SO_BSDCOMPAT
876 case TARGET_SO_BSDCOMPAT:
877 optname = SO_BSDCOMPAT;
878 break;
879 #endif
880 case TARGET_SO_PASSCRED:
881 optname = SO_PASSCRED;
882 break;
883 case TARGET_SO_TIMESTAMP:
884 optname = SO_TIMESTAMP;
885 break;
886 case TARGET_SO_RCVLOWAT:
887 optname = SO_RCVLOWAT;
888 break;
889 case TARGET_SO_RCVTIMEO:
890 optname = SO_RCVTIMEO;
891 break;
892 case TARGET_SO_SNDTIMEO:
893 optname = SO_SNDTIMEO;
894 break;
895 break;
896 default:
897 goto unimplemented;
898 }
899 if (optlen < sizeof(uint32_t))
900 return -TARGET_EINVAL;
901
902 if (get_user_u32(val, optval_addr))
903 return -TARGET_EFAULT;
904 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
905 break;
906 default:
907 unimplemented:
908 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
909 ret = -TARGET_ENOPROTOOPT;
910 }
911 return ret;
912 }
913
914 /* do_getsockopt() Must return target values and target errnos. */
915 static abi_long do_getsockopt(int sockfd, int level, int optname,
916 abi_ulong optval_addr, abi_ulong optlen)
917 {
918 abi_long ret;
919 int len, lv, val;
920
921 switch(level) {
922 case TARGET_SOL_SOCKET:
923 level = SOL_SOCKET;
924 switch (optname) {
925 case TARGET_SO_LINGER:
926 case TARGET_SO_RCVTIMEO:
927 case TARGET_SO_SNDTIMEO:
928 case TARGET_SO_PEERCRED:
929 case TARGET_SO_PEERNAME:
930 /* These don't just return a single integer */
931 goto unimplemented;
932 default:
933 goto int_case;
934 }
935 break;
936 case SOL_TCP:
937 /* TCP options all take an 'int' value. */
938 int_case:
939 if (get_user_u32(len, optlen))
940 return -TARGET_EFAULT;
941 if (len < 0)
942 return -TARGET_EINVAL;
943 lv = sizeof(int);
944 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
945 if (ret < 0)
946 return ret;
947 val = tswap32(val);
948 if (len > lv)
949 len = lv;
950 if (len == 4) {
951 if (put_user_u32(val, optval_addr))
952 return -TARGET_EFAULT;
953 } else {
954 if (put_user_u8(val, optval_addr))
955 return -TARGET_EFAULT;
956 }
957 if (put_user_u32(len, optlen))
958 return -TARGET_EFAULT;
959 break;
960 case SOL_IP:
961 switch(optname) {
962 case IP_TOS:
963 case IP_TTL:
964 case IP_HDRINCL:
965 case IP_ROUTER_ALERT:
966 case IP_RECVOPTS:
967 case IP_RETOPTS:
968 case IP_PKTINFO:
969 case IP_MTU_DISCOVER:
970 case IP_RECVERR:
971 case IP_RECVTOS:
972 #ifdef IP_FREEBIND
973 case IP_FREEBIND:
974 #endif
975 case IP_MULTICAST_TTL:
976 case IP_MULTICAST_LOOP:
977 if (get_user_u32(len, optlen))
978 return -TARGET_EFAULT;
979 if (len < 0)
980 return -TARGET_EINVAL;
981 lv = sizeof(int);
982 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
983 if (ret < 0)
984 return ret;
985 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
986 len = 1;
987 if (put_user_u32(len, optlen)
988 || put_user_u8(val, optval_addr))
989 return -TARGET_EFAULT;
990 } else {
991 if (len > sizeof(int))
992 len = sizeof(int);
993 if (put_user_u32(len, optlen)
994 || put_user_u32(val, optval_addr))
995 return -TARGET_EFAULT;
996 }
997 break;
998 default:
999 ret = -TARGET_ENOPROTOOPT;
1000 break;
1001 }
1002 break;
1003 default:
1004 unimplemented:
1005 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1006 level, optname);
1007 ret = -TARGET_EOPNOTSUPP;
1008 break;
1009 }
1010 return ret;
1011 }
1012
1013 /* FIXME
1014 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1015 * other lock functions have a return code of 0 for failure.
1016 */
1017 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1018 int count, int copy)
1019 {
1020 struct target_iovec *target_vec;
1021 abi_ulong base;
1022 int i, j;
1023
1024 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1025 if (!target_vec)
1026 return -TARGET_EFAULT;
1027 for(i = 0;i < count; i++) {
1028 base = tswapl(target_vec[i].iov_base);
1029 vec[i].iov_len = tswapl(target_vec[i].iov_len);
1030 if (vec[i].iov_len != 0) {
1031 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1032 if (!vec[i].iov_base && vec[i].iov_len)
1033 goto fail;
1034 } else {
1035 /* zero length pointer is ignored */
1036 vec[i].iov_base = NULL;
1037 }
1038 }
1039 unlock_user (target_vec, target_addr, 0);
1040 return 0;
1041 fail:
1042 /* failure - unwind locks */
1043 for (j = 0; j < i; j++) {
1044 base = tswapl(target_vec[j].iov_base);
1045 unlock_user(vec[j].iov_base, base, 0);
1046 }
1047 unlock_user (target_vec, target_addr, 0);
1048 return -TARGET_EFAULT;
1049 }
1050
1051 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1052 int count, int copy)
1053 {
1054 struct target_iovec *target_vec;
1055 abi_ulong base;
1056 int i;
1057
1058 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1059 if (!target_vec)
1060 return -TARGET_EFAULT;
1061 for(i = 0;i < count; i++) {
1062 base = tswapl(target_vec[i].iov_base);
1063 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1064 }
1065 unlock_user (target_vec, target_addr, 0);
1066
1067 return 0;
1068 }
1069
1070 /* do_socket() Must return target values and target errnos. */
1071 static abi_long do_socket(int domain, int type, int protocol)
1072 {
1073 #if defined(TARGET_MIPS)
1074 switch(type) {
1075 case TARGET_SOCK_DGRAM:
1076 type = SOCK_DGRAM;
1077 break;
1078 case TARGET_SOCK_STREAM:
1079 type = SOCK_STREAM;
1080 break;
1081 case TARGET_SOCK_RAW:
1082 type = SOCK_RAW;
1083 break;
1084 case TARGET_SOCK_RDM:
1085 type = SOCK_RDM;
1086 break;
1087 case TARGET_SOCK_SEQPACKET:
1088 type = SOCK_SEQPACKET;
1089 break;
1090 case TARGET_SOCK_PACKET:
1091 type = SOCK_PACKET;
1092 break;
1093 }
1094 #endif
1095 if (domain == PF_NETLINK)
1096 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1097 return get_errno(socket(domain, type, protocol));
1098 }
1099
1100 /* do_bind() Must return target values and target errnos. */
1101 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1102 socklen_t addrlen)
1103 {
1104 void *addr = alloca(addrlen);
1105
1106 target_to_host_sockaddr(addr, target_addr, addrlen);
1107 return get_errno(bind(sockfd, addr, addrlen));
1108 }
1109
1110 /* do_connect() Must return target values and target errnos. */
1111 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1112 socklen_t addrlen)
1113 {
1114 void *addr = alloca(addrlen);
1115
1116 target_to_host_sockaddr(addr, target_addr, addrlen);
1117 return get_errno(connect(sockfd, addr, addrlen));
1118 }
1119
1120 /* do_sendrecvmsg() Must return target values and target errnos. */
1121 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1122 int flags, int send)
1123 {
1124 abi_long ret;
1125 struct target_msghdr *msgp;
1126 struct msghdr msg;
1127 int count;
1128 struct iovec *vec;
1129 abi_ulong target_vec;
1130
1131 /* FIXME */
1132 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1133 msgp,
1134 target_msg,
1135 send ? 1 : 0))
1136 return -TARGET_EFAULT;
1137 if (msgp->msg_name) {
1138 msg.msg_namelen = tswap32(msgp->msg_namelen);
1139 msg.msg_name = alloca(msg.msg_namelen);
1140 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1141 msg.msg_namelen);
1142 } else {
1143 msg.msg_name = NULL;
1144 msg.msg_namelen = 0;
1145 }
1146 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1147 msg.msg_control = alloca(msg.msg_controllen);
1148 msg.msg_flags = tswap32(msgp->msg_flags);
1149
1150 count = tswapl(msgp->msg_iovlen);
1151 vec = alloca(count * sizeof(struct iovec));
1152 target_vec = tswapl(msgp->msg_iov);
1153 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1154 msg.msg_iovlen = count;
1155 msg.msg_iov = vec;
1156
1157 if (send) {
1158 ret = target_to_host_cmsg(&msg, msgp);
1159 if (ret == 0)
1160 ret = get_errno(sendmsg(fd, &msg, flags));
1161 } else {
1162 ret = get_errno(recvmsg(fd, &msg, flags));
1163 if (!is_error(ret))
1164 ret = host_to_target_cmsg(msgp, &msg);
1165 }
1166 unlock_iovec(vec, target_vec, count, !send);
1167 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1168 return ret;
1169 }
1170
1171 /* do_accept() Must return target values and target errnos. */
1172 static abi_long do_accept(int fd, abi_ulong target_addr,
1173 abi_ulong target_addrlen_addr)
1174 {
1175 socklen_t addrlen;
1176 void *addr;
1177 abi_long ret;
1178
1179 if (get_user_u32(addrlen, target_addrlen_addr))
1180 return -TARGET_EFAULT;
1181
1182 addr = alloca(addrlen);
1183
1184 ret = get_errno(accept(fd, addr, &addrlen));
1185 if (!is_error(ret)) {
1186 host_to_target_sockaddr(target_addr, addr, addrlen);
1187 if (put_user_u32(addrlen, target_addrlen_addr))
1188 ret = -TARGET_EFAULT;
1189 }
1190 return ret;
1191 }
1192
1193 /* do_getpeername() Must return target values and target errnos. */
1194 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1195 abi_ulong target_addrlen_addr)
1196 {
1197 socklen_t addrlen;
1198 void *addr;
1199 abi_long ret;
1200
1201 if (get_user_u32(addrlen, target_addrlen_addr))
1202 return -TARGET_EFAULT;
1203
1204 addr = alloca(addrlen);
1205
1206 ret = get_errno(getpeername(fd, addr, &addrlen));
1207 if (!is_error(ret)) {
1208 host_to_target_sockaddr(target_addr, addr, addrlen);
1209 if (put_user_u32(addrlen, target_addrlen_addr))
1210 ret = -TARGET_EFAULT;
1211 }
1212 return ret;
1213 }
1214
1215 /* do_getsockname() Must return target values and target errnos. */
1216 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1217 abi_ulong target_addrlen_addr)
1218 {
1219 socklen_t addrlen;
1220 void *addr;
1221 abi_long ret;
1222
1223 if (get_user_u32(addrlen, target_addrlen_addr))
1224 return -TARGET_EFAULT;
1225
1226 addr = alloca(addrlen);
1227
1228 ret = get_errno(getsockname(fd, addr, &addrlen));
1229 if (!is_error(ret)) {
1230 host_to_target_sockaddr(target_addr, addr, addrlen);
1231 if (put_user_u32(addrlen, target_addrlen_addr))
1232 ret = -TARGET_EFAULT;
1233 }
1234 return ret;
1235 }
1236
1237 /* do_socketpair() Must return target values and target errnos. */
1238 static abi_long do_socketpair(int domain, int type, int protocol,
1239 abi_ulong target_tab_addr)
1240 {
1241 int tab[2];
1242 abi_long ret;
1243
1244 ret = get_errno(socketpair(domain, type, protocol, tab));
1245 if (!is_error(ret)) {
1246 if (put_user_s32(tab[0], target_tab_addr)
1247 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1248 ret = -TARGET_EFAULT;
1249 }
1250 return ret;
1251 }
1252
1253 /* do_sendto() Must return target values and target errnos. */
1254 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1255 abi_ulong target_addr, socklen_t addrlen)
1256 {
1257 void *addr;
1258 void *host_msg;
1259 abi_long ret;
1260
1261 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1262 if (!host_msg)
1263 return -TARGET_EFAULT;
1264 if (target_addr) {
1265 addr = alloca(addrlen);
1266 target_to_host_sockaddr(addr, target_addr, addrlen);
1267 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1268 } else {
1269 ret = get_errno(send(fd, host_msg, len, flags));
1270 }
1271 unlock_user(host_msg, msg, 0);
1272 return ret;
1273 }
1274
1275 /* do_recvfrom() Must return target values and target errnos. */
1276 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1277 abi_ulong target_addr,
1278 abi_ulong target_addrlen)
1279 {
1280 socklen_t addrlen;
1281 void *addr;
1282 void *host_msg;
1283 abi_long ret;
1284
1285 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1286 if (!host_msg)
1287 return -TARGET_EFAULT;
1288 if (target_addr) {
1289 if (get_user_u32(addrlen, target_addrlen)) {
1290 ret = -TARGET_EFAULT;
1291 goto fail;
1292 }
1293 addr = alloca(addrlen);
1294 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1295 } else {
1296 addr = NULL; /* To keep compiler quiet. */
1297 ret = get_errno(recv(fd, host_msg, len, flags));
1298 }
1299 if (!is_error(ret)) {
1300 if (target_addr) {
1301 host_to_target_sockaddr(target_addr, addr, addrlen);
1302 if (put_user_u32(addrlen, target_addrlen)) {
1303 ret = -TARGET_EFAULT;
1304 goto fail;
1305 }
1306 }
1307 unlock_user(host_msg, msg, len);
1308 } else {
1309 fail:
1310 unlock_user(host_msg, msg, 0);
1311 }
1312 return ret;
1313 }
1314
1315 #ifdef TARGET_NR_socketcall
1316 /* do_socketcall() Must return target values and target errnos. */
1317 static abi_long do_socketcall(int num, abi_ulong vptr)
1318 {
1319 abi_long ret;
1320 const int n = sizeof(abi_ulong);
1321
1322 switch(num) {
1323 case SOCKOP_socket:
1324 {
1325 int domain, type, protocol;
1326
1327 if (get_user_s32(domain, vptr)
1328 || get_user_s32(type, vptr + n)
1329 || get_user_s32(protocol, vptr + 2 * n))
1330 return -TARGET_EFAULT;
1331
1332 ret = do_socket(domain, type, protocol);
1333 }
1334 break;
1335 case SOCKOP_bind:
1336 {
1337 int sockfd;
1338 abi_ulong target_addr;
1339 socklen_t addrlen;
1340
1341 if (get_user_s32(sockfd, vptr)
1342 || get_user_ual(target_addr, vptr + n)
1343 || get_user_u32(addrlen, vptr + 2 * n))
1344 return -TARGET_EFAULT;
1345
1346 ret = do_bind(sockfd, target_addr, addrlen);
1347 }
1348 break;
1349 case SOCKOP_connect:
1350 {
1351 int sockfd;
1352 abi_ulong target_addr;
1353 socklen_t addrlen;
1354
1355 if (get_user_s32(sockfd, vptr)
1356 || get_user_ual(target_addr, vptr + n)
1357 || get_user_u32(addrlen, vptr + 2 * n))
1358 return -TARGET_EFAULT;
1359
1360 ret = do_connect(sockfd, target_addr, addrlen);
1361 }
1362 break;
1363 case SOCKOP_listen:
1364 {
1365 int sockfd, backlog;
1366
1367 if (get_user_s32(sockfd, vptr)
1368 || get_user_s32(backlog, vptr + n))
1369 return -TARGET_EFAULT;
1370
1371 ret = get_errno(listen(sockfd, backlog));
1372 }
1373 break;
1374 case SOCKOP_accept:
1375 {
1376 int sockfd;
1377 abi_ulong target_addr, target_addrlen;
1378
1379 if (get_user_s32(sockfd, vptr)
1380 || get_user_ual(target_addr, vptr + n)
1381 || get_user_u32(target_addrlen, vptr + 2 * n))
1382 return -TARGET_EFAULT;
1383
1384 ret = do_accept(sockfd, target_addr, target_addrlen);
1385 }
1386 break;
1387 case SOCKOP_getsockname:
1388 {
1389 int sockfd;
1390 abi_ulong target_addr, target_addrlen;
1391
1392 if (get_user_s32(sockfd, vptr)
1393 || get_user_ual(target_addr, vptr + n)
1394 || get_user_u32(target_addrlen, vptr + 2 * n))
1395 return -TARGET_EFAULT;
1396
1397 ret = do_getsockname(sockfd, target_addr, target_addrlen);
1398 }
1399 break;
1400 case SOCKOP_getpeername:
1401 {
1402 int sockfd;
1403 abi_ulong target_addr, target_addrlen;
1404
1405 if (get_user_s32(sockfd, vptr)
1406 || get_user_ual(target_addr, vptr + n)
1407 || get_user_u32(target_addrlen, vptr + 2 * n))
1408 return -TARGET_EFAULT;
1409
1410 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1411 }
1412 break;
1413 case SOCKOP_socketpair:
1414 {
1415 int domain, type, protocol;
1416 abi_ulong tab;
1417
1418 if (get_user_s32(domain, vptr)
1419 || get_user_s32(type, vptr + n)
1420 || get_user_s32(protocol, vptr + 2 * n)
1421 || get_user_ual(tab, vptr + 3 * n))
1422 return -TARGET_EFAULT;
1423
1424 ret = do_socketpair(domain, type, protocol, tab);
1425 }
1426 break;
1427 case SOCKOP_send:
1428 {
1429 int sockfd;
1430 abi_ulong msg;
1431 size_t len;
1432 int flags;
1433
1434 if (get_user_s32(sockfd, vptr)
1435 || get_user_ual(msg, vptr + n)
1436 || get_user_ual(len, vptr + 2 * n)
1437 || get_user_s32(flags, vptr + 3 * n))
1438 return -TARGET_EFAULT;
1439
1440 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1441 }
1442 break;
1443 case SOCKOP_recv:
1444 {
1445 int sockfd;
1446 abi_ulong msg;
1447 size_t len;
1448 int flags;
1449
1450 if (get_user_s32(sockfd, vptr)
1451 || get_user_ual(msg, vptr + n)
1452 || get_user_ual(len, vptr + 2 * n)
1453 || get_user_s32(flags, vptr + 3 * n))
1454 return -TARGET_EFAULT;
1455
1456 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1457 }
1458 break;
1459 case SOCKOP_sendto:
1460 {
1461 int sockfd;
1462 abi_ulong msg;
1463 size_t len;
1464 int flags;
1465 abi_ulong addr;
1466 socklen_t addrlen;
1467
1468 if (get_user_s32(sockfd, vptr)
1469 || get_user_ual(msg, vptr + n)
1470 || get_user_ual(len, vptr + 2 * n)
1471 || get_user_s32(flags, vptr + 3 * n)
1472 || get_user_ual(addr, vptr + 4 * n)
1473 || get_user_u32(addrlen, vptr + 5 * n))
1474 return -TARGET_EFAULT;
1475
1476 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1477 }
1478 break;
1479 case SOCKOP_recvfrom:
1480 {
1481 int sockfd;
1482 abi_ulong msg;
1483 size_t len;
1484 int flags;
1485 abi_ulong addr;
1486 socklen_t addrlen;
1487
1488 if (get_user_s32(sockfd, vptr)
1489 || get_user_ual(msg, vptr + n)
1490 || get_user_ual(len, vptr + 2 * n)
1491 || get_user_s32(flags, vptr + 3 * n)
1492 || get_user_ual(addr, vptr + 4 * n)
1493 || get_user_u32(addrlen, vptr + 5 * n))
1494 return -TARGET_EFAULT;
1495
1496 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1497 }
1498 break;
1499 case SOCKOP_shutdown:
1500 {
1501 int sockfd, how;
1502
1503 if (get_user_s32(sockfd, vptr)
1504 || get_user_s32(how, vptr + n))
1505 return -TARGET_EFAULT;
1506
1507 ret = get_errno(shutdown(sockfd, how));
1508 }
1509 break;
1510 case SOCKOP_sendmsg:
1511 case SOCKOP_recvmsg:
1512 {
1513 int fd;
1514 abi_ulong target_msg;
1515 int flags;
1516
1517 if (get_user_s32(fd, vptr)
1518 || get_user_ual(target_msg, vptr + n)
1519 || get_user_s32(flags, vptr + 2 * n))
1520 return -TARGET_EFAULT;
1521
1522 ret = do_sendrecvmsg(fd, target_msg, flags,
1523 (num == SOCKOP_sendmsg));
1524 }
1525 break;
1526 case SOCKOP_setsockopt:
1527 {
1528 int sockfd;
1529 int level;
1530 int optname;
1531 abi_ulong optval;
1532 socklen_t optlen;
1533
1534 if (get_user_s32(sockfd, vptr)
1535 || get_user_s32(level, vptr + n)
1536 || get_user_s32(optname, vptr + 2 * n)
1537 || get_user_ual(optval, vptr + 3 * n)
1538 || get_user_u32(optlen, vptr + 4 * n))
1539 return -TARGET_EFAULT;
1540
1541 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1542 }
1543 break;
1544 case SOCKOP_getsockopt:
1545 {
1546 int sockfd;
1547 int level;
1548 int optname;
1549 abi_ulong optval;
1550 socklen_t optlen;
1551
1552 if (get_user_s32(sockfd, vptr)
1553 || get_user_s32(level, vptr + n)
1554 || get_user_s32(optname, vptr + 2 * n)
1555 || get_user_ual(optval, vptr + 3 * n)
1556 || get_user_u32(optlen, vptr + 4 * n))
1557 return -TARGET_EFAULT;
1558
1559 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
1560 }
1561 break;
1562 default:
1563 gemu_log("Unsupported socketcall: %d\n", num);
1564 ret = -TARGET_ENOSYS;
1565 break;
1566 }
1567 return ret;
1568 }
1569 #endif
1570
1571 #ifdef TARGET_NR_ipc
1572 #define N_SHM_REGIONS 32
1573
1574 static struct shm_region {
1575 abi_ulong start;
1576 abi_ulong size;
1577 } shm_regions[N_SHM_REGIONS];
1578
1579 struct target_ipc_perm
1580 {
1581 abi_long __key;
1582 abi_ulong uid;
1583 abi_ulong gid;
1584 abi_ulong cuid;
1585 abi_ulong cgid;
1586 unsigned short int mode;
1587 unsigned short int __pad1;
1588 unsigned short int __seq;
1589 unsigned short int __pad2;
1590 abi_ulong __unused1;
1591 abi_ulong __unused2;
1592 };
1593
1594 struct target_semid_ds
1595 {
1596 struct target_ipc_perm sem_perm;
1597 abi_ulong sem_otime;
1598 abi_ulong __unused1;
1599 abi_ulong sem_ctime;
1600 abi_ulong __unused2;
1601 abi_ulong sem_nsems;
1602 abi_ulong __unused3;
1603 abi_ulong __unused4;
1604 };
1605
1606 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
1607 abi_ulong target_addr)
1608 {
1609 struct target_ipc_perm *target_ip;
1610 struct target_semid_ds *target_sd;
1611
1612 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
1613 return -TARGET_EFAULT;
1614 target_ip=&(target_sd->sem_perm);
1615 host_ip->__key = tswapl(target_ip->__key);
1616 host_ip->uid = tswapl(target_ip->uid);
1617 host_ip->gid = tswapl(target_ip->gid);
1618 host_ip->cuid = tswapl(target_ip->cuid);
1619 host_ip->cgid = tswapl(target_ip->cgid);
1620 host_ip->mode = tswapl(target_ip->mode);
1621 unlock_user_struct(target_sd, target_addr, 0);
1622 return 0;
1623 }
1624
1625 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
1626 struct ipc_perm *host_ip)
1627 {
1628 struct target_ipc_perm *target_ip;
1629 struct target_semid_ds *target_sd;
1630
1631 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
1632 return -TARGET_EFAULT;
1633 target_ip = &(target_sd->sem_perm);
1634 target_ip->__key = tswapl(host_ip->__key);
1635 target_ip->uid = tswapl(host_ip->uid);
1636 target_ip->gid = tswapl(host_ip->gid);
1637 target_ip->cuid = tswapl(host_ip->cuid);
1638 target_ip->cgid = tswapl(host_ip->cgid);
1639 target_ip->mode = tswapl(host_ip->mode);
1640 unlock_user_struct(target_sd, target_addr, 1);
1641 return 0;
1642 }
1643
1644 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
1645 abi_ulong target_addr)
1646 {
1647 struct target_semid_ds *target_sd;
1648
1649 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
1650 return -TARGET_EFAULT;
1651 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
1652 host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
1653 host_sd->sem_otime = tswapl(target_sd->sem_otime);
1654 host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
1655 unlock_user_struct(target_sd, target_addr, 0);
1656 return 0;
1657 }
1658
1659 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
1660 struct semid_ds *host_sd)
1661 {
1662 struct target_semid_ds *target_sd;
1663
1664 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
1665 return -TARGET_EFAULT;
1666 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
1667 target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
1668 target_sd->sem_otime = tswapl(host_sd->sem_otime);
1669 target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
1670 unlock_user_struct(target_sd, target_addr, 1);
1671 return 0;
1672 }
1673
1674 union semun {
1675 int val;
1676 struct semid_ds *buf;
1677 unsigned short *array;
1678 };
1679
1680 union target_semun {
1681 int val;
1682 abi_long buf;
1683 unsigned short int *array;
1684 };
1685
1686 static inline abi_long target_to_host_semun(int cmd,
1687 union semun *host_su,
1688 abi_ulong target_addr,
1689 struct semid_ds *ds)
1690 {
1691 union target_semun *target_su;
1692
1693 switch( cmd ) {
1694 case IPC_STAT:
1695 case IPC_SET:
1696 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
1697 return -TARGET_EFAULT;
1698 target_to_host_semid_ds(ds,target_su->buf);
1699 host_su->buf = ds;
1700 unlock_user_struct(target_su, target_addr, 0);
1701 break;
1702 case GETVAL:
1703 case SETVAL:
1704 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
1705 return -TARGET_EFAULT;
1706 host_su->val = tswapl(target_su->val);
1707 unlock_user_struct(target_su, target_addr, 0);
1708 break;
1709 case GETALL:
1710 case SETALL:
1711 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
1712 return -TARGET_EFAULT;
1713 *host_su->array = tswap16(*target_su->array);
1714 unlock_user_struct(target_su, target_addr, 0);
1715 break;
1716 default:
1717 gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1718 }
1719 return 0;
1720 }
1721
1722 static inline abi_long host_to_target_semun(int cmd,
1723 abi_ulong target_addr,
1724 union semun *host_su,
1725 struct semid_ds *ds)
1726 {
1727 union target_semun *target_su;
1728
1729 switch( cmd ) {
1730 case IPC_STAT:
1731 case IPC_SET:
1732 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
1733 return -TARGET_EFAULT;
1734 host_to_target_semid_ds(target_su->buf,ds);
1735 unlock_user_struct(target_su, target_addr, 1);
1736 break;
1737 case GETVAL:
1738 case SETVAL:
1739 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
1740 return -TARGET_EFAULT;
1741 target_su->val = tswapl(host_su->val);
1742 unlock_user_struct(target_su, target_addr, 1);
1743 break;
1744 case GETALL:
1745 case SETALL:
1746 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
1747 return -TARGET_EFAULT;
1748 *target_su->array = tswap16(*host_su->array);
1749 unlock_user_struct(target_su, target_addr, 1);
1750 break;
1751 default:
1752 gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1753 }
1754 return 0;
1755 }
1756
1757 static inline abi_long do_semctl(int first, int second, int third,
1758 abi_long ptr)
1759 {
1760 union semun arg;
1761 struct semid_ds dsarg;
1762 int cmd = third&0xff;
1763 abi_long ret = 0;
1764
1765 switch( cmd ) {
1766 case GETVAL:
1767 target_to_host_semun(cmd,&arg,ptr,&dsarg);
1768 ret = get_errno(semctl(first, second, cmd, arg));
1769 host_to_target_semun(cmd,ptr,&arg,&dsarg);
1770 break;
1771 case SETVAL:
1772 target_to_host_semun(cmd,&arg,ptr,&dsarg);
1773 ret = get_errno(semctl(first, second, cmd, arg));
1774 host_to_target_semun(cmd,ptr,&arg,&dsarg);
1775 break;
1776 case GETALL:
1777 target_to_host_semun(cmd,&arg,ptr,&dsarg);
1778 ret = get_errno(semctl(first, second, cmd, arg));
1779 host_to_target_semun(cmd,ptr,&arg,&dsarg);
1780 break;
1781 case SETALL:
1782 target_to_host_semun(cmd,&arg,ptr,&dsarg);
1783 ret = get_errno(semctl(first, second, cmd, arg));
1784 host_to_target_semun(cmd,ptr,&arg,&dsarg);
1785 break;
1786 case IPC_STAT:
1787 target_to_host_semun(cmd,&arg,ptr,&dsarg);
1788 ret = get_errno(semctl(first, second, cmd, arg));
1789 host_to_target_semun(cmd,ptr,&arg,&dsarg);
1790 break;
1791 case IPC_SET:
1792 target_to_host_semun(cmd,&arg,ptr,&dsarg);
1793 ret = get_errno(semctl(first, second, cmd, arg));
1794 host_to_target_semun(cmd,ptr,&arg,&dsarg);
1795 break;
1796 default:
1797 ret = get_errno(semctl(first, second, cmd, arg));
1798 }
1799
1800 return ret;
1801 }
1802
1803 struct target_msqid_ds
1804 {
1805 struct target_ipc_perm msg_perm;
1806 abi_ulong msg_stime;
1807 abi_ulong __unused1;
1808 abi_ulong msg_rtime;
1809 abi_ulong __unused2;
1810 abi_ulong msg_ctime;
1811 abi_ulong __unused3;
1812 abi_ulong __msg_cbytes;
1813 abi_ulong msg_qnum;
1814 abi_ulong msg_qbytes;
1815 abi_ulong msg_lspid;
1816 abi_ulong msg_lrpid;
1817 abi_ulong __unused4;
1818 abi_ulong __unused5;
1819 };
1820
1821 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
1822 abi_ulong target_addr)
1823 {
1824 struct target_msqid_ds *target_md;
1825
1826 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
1827 return -TARGET_EFAULT;
1828 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr);
1829 host_md->msg_stime = tswapl(target_md->msg_stime);
1830 host_md->msg_rtime = tswapl(target_md->msg_rtime);
1831 host_md->msg_ctime = tswapl(target_md->msg_ctime);
1832 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
1833 host_md->msg_qnum = tswapl(target_md->msg_qnum);
1834 host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
1835 host_md->msg_lspid = tswapl(target_md->msg_lspid);
1836 host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
1837 unlock_user_struct(target_md, target_addr, 0);
1838 return 0;
1839 }
1840
1841 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
1842 struct msqid_ds *host_md)
1843 {
1844 struct target_msqid_ds *target_md;
1845
1846 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
1847 return -TARGET_EFAULT;
1848 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm));
1849 target_md->msg_stime = tswapl(host_md->msg_stime);
1850 target_md->msg_rtime = tswapl(host_md->msg_rtime);
1851 target_md->msg_ctime = tswapl(host_md->msg_ctime);
1852 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
1853 target_md->msg_qnum = tswapl(host_md->msg_qnum);
1854 target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
1855 target_md->msg_lspid = tswapl(host_md->msg_lspid);
1856 target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
1857 unlock_user_struct(target_md, target_addr, 1);
1858 return 0;
1859 }
1860
1861 static inline abi_long do_msgctl(int first, int second, abi_long ptr)
1862 {
1863 struct msqid_ds dsarg;
1864 int cmd = second&0xff;
1865 abi_long ret = 0;
1866 switch( cmd ) {
1867 case IPC_STAT:
1868 case IPC_SET:
1869 target_to_host_msqid_ds(&dsarg,ptr);
1870 ret = get_errno(msgctl(first, cmd, &dsarg));
1871 host_to_target_msqid_ds(ptr,&dsarg);
1872 default:
1873 ret = get_errno(msgctl(first, cmd, &dsarg));
1874 }
1875 return ret;
1876 }
1877
1878 struct target_msgbuf {
1879 abi_ulong mtype;
1880 char mtext[1];
1881 };
1882
1883 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
1884 unsigned int msgsz, int msgflg)
1885 {
1886 struct target_msgbuf *target_mb;
1887 struct msgbuf *host_mb;
1888 abi_long ret = 0;
1889
1890 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
1891 return -TARGET_EFAULT;
1892 host_mb = malloc(msgsz+sizeof(long));
1893 host_mb->mtype = tswapl(target_mb->mtype);
1894 memcpy(host_mb->mtext,target_mb->mtext,msgsz);
1895 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
1896 free(host_mb);
1897 unlock_user_struct(target_mb, msgp, 0);
1898
1899 return ret;
1900 }
1901
1902 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
1903 unsigned int msgsz, int msgtype,
1904 int msgflg)
1905 {
1906 struct target_msgbuf *target_mb;
1907 char *target_mtext;
1908 struct msgbuf *host_mb;
1909 abi_long ret = 0;
1910
1911 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
1912 return -TARGET_EFAULT;
1913 host_mb = malloc(msgsz+sizeof(long));
1914 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg));
1915 if (ret > 0) {
1916 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
1917 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
1918 if (!target_mtext) {
1919 ret = -TARGET_EFAULT;
1920 goto end;
1921 }
1922 memcpy(target_mb->mtext, host_mb->mtext, ret);
1923 unlock_user(target_mtext, target_mtext_addr, ret);
1924 }
1925 target_mb->mtype = tswapl(host_mb->mtype);
1926 free(host_mb);
1927
1928 end:
1929 if (target_mb)
1930 unlock_user_struct(target_mb, msgp, 1);
1931 return ret;
1932 }
1933
1934 /* ??? This only works with linear mappings. */
1935 /* do_ipc() must return target values and target errnos. */
1936 static abi_long do_ipc(unsigned int call, int first,
1937 int second, int third,
1938 abi_long ptr, abi_long fifth)
1939 {
1940 int version;
1941 abi_long ret = 0;
1942 struct shmid_ds shm_info;
1943 int i;
1944
1945 version = call >> 16;
1946 call &= 0xffff;
1947
1948 switch (call) {
1949 case IPCOP_semop:
1950 ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second));
1951 break;
1952
1953 case IPCOP_semget:
1954 ret = get_errno(semget(first, second, third));
1955 break;
1956
1957 case IPCOP_semctl:
1958 ret = do_semctl(first, second, third, ptr);
1959 break;
1960
1961 case IPCOP_semtimedop:
1962 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
1963 ret = -TARGET_ENOSYS;
1964 break;
1965
1966 case IPCOP_msgget:
1967 ret = get_errno(msgget(first, second));
1968 break;
1969
1970 case IPCOP_msgsnd:
1971 ret = do_msgsnd(first, ptr, second, third);
1972 break;
1973
1974 case IPCOP_msgctl:
1975 ret = do_msgctl(first, second, ptr);
1976 break;
1977
1978 case IPCOP_msgrcv:
1979 {
1980 /* XXX: this code is not correct */
1981 struct ipc_kludge
1982 {
1983 void *__unbounded msgp;
1984 long int msgtyp;
1985 };
1986
1987 struct ipc_kludge *foo = (struct ipc_kludge *)g2h(ptr);
1988 struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1989
1990 ret = do_msgrcv(first, (long)msgp, second, 0, third);
1991
1992 }
1993 break;
1994
1995 case IPCOP_shmat:
1996 {
1997 abi_ulong raddr;
1998 void *host_addr;
1999 /* SHM_* flags are the same on all linux platforms */
2000 host_addr = shmat(first, (void *)g2h(ptr), second);
2001 if (host_addr == (void *)-1) {
2002 ret = get_errno((long)host_addr);
2003 break;
2004 }
2005 raddr = h2g((unsigned long)host_addr);
2006 /* find out the length of the shared memory segment */
2007
2008 ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
2009 if (is_error(ret)) {
2010 /* can't get length, bail out */
2011 shmdt(host_addr);
2012 break;
2013 }
2014 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2015 PAGE_VALID | PAGE_READ |
2016 ((second & SHM_RDONLY)? 0: PAGE_WRITE));
2017 for (i = 0; i < N_SHM_REGIONS; ++i) {
2018 if (shm_regions[i].start == 0) {
2019 shm_regions[i].start = raddr;
2020 shm_regions[i].size = shm_info.shm_segsz;
2021 break;
2022 }
2023 }
2024 if (put_user_ual(raddr, third))
2025 return -TARGET_EFAULT;
2026 ret = 0;
2027 }
2028 break;
2029 case IPCOP_shmdt:
2030 for (i = 0; i < N_SHM_REGIONS; ++i) {
2031 if (shm_regions[i].start == ptr) {
2032 shm_regions[i].start = 0;
2033 page_set_flags(ptr, shm_regions[i].size, 0);
2034 break;
2035 }
2036 }
2037 ret = get_errno(shmdt((void *)g2h(ptr)));
2038 break;
2039
2040 case IPCOP_shmget:
2041 /* IPC_* flag values are the same on all linux platforms */
2042 ret = get_errno(shmget(first, second, third));
2043 break;
2044
2045 /* IPC_* and SHM_* command values are the same on all linux platforms */
2046 case IPCOP_shmctl:
2047 switch(second) {
2048 case IPC_RMID:
2049 case SHM_LOCK:
2050 case SHM_UNLOCK:
2051 ret = get_errno(shmctl(first, second, NULL));
2052 break;
2053 default:
2054 goto unimplemented;
2055 }
2056 break;
2057 default:
2058 unimplemented:
2059 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2060 ret = -TARGET_ENOSYS;
2061 break;
2062 }
2063 return ret;
2064 }
2065 #endif
2066
2067 /* kernel structure types definitions */
2068 #define IFNAMSIZ 16
2069
2070 #define STRUCT(name, list...) STRUCT_ ## name,
2071 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
2072 enum {
2073 #include "syscall_types.h"
2074 };
2075 #undef STRUCT
2076 #undef STRUCT_SPECIAL
2077
2078 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
2079 #define STRUCT_SPECIAL(name)
2080 #include "syscall_types.h"
2081 #undef STRUCT
2082 #undef STRUCT_SPECIAL
2083
2084 typedef struct IOCTLEntry {
2085 unsigned int target_cmd;
2086 unsigned int host_cmd;
2087 const char *name;
2088 int access;
2089 const argtype arg_type[5];
2090 } IOCTLEntry;
2091
2092 #define IOC_R 0x0001
2093 #define IOC_W 0x0002
2094 #define IOC_RW (IOC_R | IOC_W)
2095
2096 #define MAX_STRUCT_SIZE 4096
2097
2098 IOCTLEntry ioctl_entries[] = {
2099 #define IOCTL(cmd, access, types...) \
2100 { TARGET_ ## cmd, cmd, #cmd, access, { types } },
2101 #include "ioctls.h"
2102 { 0, 0, },
2103 };
2104
2105 /* ??? Implement proper locking for ioctls. */
2106 /* do_ioctl() Must return target values and target errnos. */
2107 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
2108 {
2109 const IOCTLEntry *ie;
2110 const argtype *arg_type;
2111 abi_long ret;
2112 uint8_t buf_temp[MAX_STRUCT_SIZE];
2113 int target_size;
2114 void *argptr;
2115
2116 ie = ioctl_entries;
2117 for(;;) {
2118 if (ie->target_cmd == 0) {
2119 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
2120 return -TARGET_ENOSYS;
2121 }
2122 if (ie->target_cmd == cmd)
2123 break;
2124 ie++;
2125 }
2126 arg_type = ie->arg_type;
2127 #if defined(DEBUG)
2128 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
2129 #endif
2130 switch(arg_type[0]) {
2131 case TYPE_NULL:
2132 /* no argument */
2133 ret = get_errno(ioctl(fd, ie->host_cmd));
2134 break;
2135 case TYPE_PTRVOID:
2136 case TYPE_INT:
2137 /* int argment */
2138 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
2139 break;
2140 case TYPE_PTR:
2141 arg_type++;
2142 target_size = thunk_type_size(arg_type, 0);
2143 switch(ie->access) {
2144 case IOC_R:
2145 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2146 if (!is_error(ret)) {
2147 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2148 if (!argptr)
2149 return -TARGET_EFAULT;
2150 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2151 unlock_user(argptr, arg, target_size);
2152 }
2153 break;
2154 case IOC_W:
2155 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2156 if (!argptr)
2157 return -TARGET_EFAULT;
2158 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2159 unlock_user(argptr, arg, 0);
2160 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2161 break;
2162 default:
2163 case IOC_RW:
2164 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2165 if (!argptr)
2166 return -TARGET_EFAULT;
2167 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2168 unlock_user(argptr, arg, 0);
2169 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2170 if (!is_error(ret)) {
2171 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2172 if (!argptr)
2173 return -TARGET_EFAULT;
2174 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2175 unlock_user(argptr, arg, target_size);
2176 }
2177 break;
2178 }
2179 break;
2180 default:
2181 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
2182 (long)cmd, arg_type[0]);
2183 ret = -TARGET_ENOSYS;
2184 break;
2185 }
2186 return ret;
2187 }
2188
2189 bitmask_transtbl iflag_tbl[] = {
2190 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
2191 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
2192 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
2193 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
2194 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
2195 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
2196 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
2197 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
2198 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
2199 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
2200 { TARGET_IXON, TARGET_IXON, IXON, IXON },
2201 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
2202 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
2203 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
2204 { 0, 0, 0, 0 }
2205 };
2206
2207 bitmask_transtbl oflag_tbl[] = {
2208 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
2209 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
2210 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
2211 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
2212 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
2213 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
2214 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
2215 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
2216 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
2217 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
2218 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
2219 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
2220 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
2221 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
2222 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
2223 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
2224 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
2225 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
2226 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
2227 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
2228 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
2229 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
2230 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
2231 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
2232 { 0, 0, 0, 0 }
2233 };
2234
2235 bitmask_transtbl cflag_tbl[] = {
2236 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
2237 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
2238 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
2239 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
2240 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
2241 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
2242 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
2243 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
2244 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
2245 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
2246 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
2247 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
2248 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
2249 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
2250 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
2251 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
2252 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
2253 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
2254 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
2255 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
2256 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
2257 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
2258 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
2259 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
2260 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
2261 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
2262 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
2263 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
2264 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
2265 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
2266 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
2267 { 0, 0, 0, 0 }
2268 };
2269
2270 bitmask_transtbl lflag_tbl[] = {
2271 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
2272 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
2273 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
2274 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
2275 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
2276 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
2277 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
2278 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
2279 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
2280 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
2281 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
2282 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
2283 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
2284 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
2285 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
2286 { 0, 0, 0, 0 }
2287 };
2288
2289 static void target_to_host_termios (void *dst, const void *src)
2290 {
2291 struct host_termios *host = dst;
2292 const struct target_termios *target = src;
2293
2294 host->c_iflag =
2295 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
2296 host->c_oflag =
2297 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
2298 host->c_cflag =
2299 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
2300 host->c_lflag =
2301 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
2302 host->c_line = target->c_line;
2303
2304 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
2305 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
2306 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
2307 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
2308 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
2309 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
2310 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
2311 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
2312 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
2313 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
2314 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
2315 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
2316 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
2317 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
2318 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
2319 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
2320 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
2321 }
2322
2323 static void host_to_target_termios (void *dst, const void *src)
2324 {
2325 struct target_termios *target = dst;
2326 const struct host_termios *host = src;
2327
2328 target->c_iflag =
2329 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
2330 target->c_oflag =
2331 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
2332 target->c_cflag =
2333 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
2334 target->c_lflag =
2335 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
2336 target->c_line = host->c_line;
2337
2338 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
2339 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
2340 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
2341 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
2342 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
2343 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
2344 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
2345 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
2346 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
2347 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
2348 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
2349 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
2350 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
2351 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
2352 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
2353 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
2354 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
2355 }
2356
2357 StructEntry struct_termios_def = {
2358 .convert = { host_to_target_termios, target_to_host_termios },
2359 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
2360 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
2361 };
2362
2363 static bitmask_transtbl mmap_flags_tbl[] = {
2364 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
2365 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
2366 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
2367 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
2368 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
2369 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
2370 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
2371 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
2372 { 0, 0, 0, 0 }
2373 };
2374
2375 static bitmask_transtbl fcntl_flags_tbl[] = {
2376 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
2377 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
2378 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
2379 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
2380 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
2381 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
2382 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
2383 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
2384 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
2385 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
2386 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
2387 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
2388 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
2389 #if defined(O_DIRECT)
2390 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
2391 #endif
2392 { 0, 0, 0, 0 }
2393 };
2394
2395 #if defined(TARGET_I386)
2396
2397 /* NOTE: there is really one LDT for all the threads */
2398 uint8_t *ldt_table;
2399
2400 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
2401 {
2402 int size;
2403 void *p;
2404
2405 if (!ldt_table)
2406 return 0;
2407 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
2408 if (size > bytecount)
2409 size = bytecount;
2410 p = lock_user(VERIFY_WRITE, ptr, size, 0);
2411 if (!p)
2412 return -TARGET_EFAULT;
2413 /* ??? Should this by byteswapped? */
2414 memcpy(p, ldt_table, size);
2415 unlock_user(p, ptr, size);
2416 return size;
2417 }
2418
2419 /* XXX: add locking support */
2420 static abi_long write_ldt(CPUX86State *env,
2421 abi_ulong ptr, unsigned long bytecount, int oldmode)
2422 {
2423 struct target_modify_ldt_ldt_s ldt_info;
2424 struct target_modify_ldt_ldt_s *target_ldt_info;
2425 int seg_32bit, contents, read_exec_only, limit_in_pages;
2426 int seg_not_present, useable, lm;
2427 uint32_t *lp, entry_1, entry_2;
2428
2429 if (bytecount != sizeof(ldt_info))
2430 return -TARGET_EINVAL;
2431 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
2432 return -TARGET_EFAULT;
2433 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2434 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2435 ldt_info.limit = tswap32(target_ldt_info->limit);
2436 ldt_info.flags = tswap32(target_ldt_info->flags);
2437 unlock_user_struct(target_ldt_info, ptr, 0);
2438
2439 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
2440 return -TARGET_EINVAL;
2441 seg_32bit = ldt_info.flags & 1;
2442 contents = (ldt_info.flags >> 1) & 3;
2443 read_exec_only = (ldt_info.flags >> 3) & 1;
2444 limit_in_pages = (ldt_info.flags >> 4) & 1;
2445 seg_not_present = (ldt_info.flags >> 5) & 1;
2446 useable = (ldt_info.flags >> 6) & 1;
2447 #ifdef TARGET_ABI32
2448 lm = 0;
2449 #else
2450 lm = (ldt_info.flags >> 7) & 1;
2451 #endif
2452 if (contents == 3) {
2453 if (oldmode)
2454 return -TARGET_EINVAL;
2455 if (seg_not_present == 0)
2456 return -TARGET_EINVAL;
2457 }
2458 /* allocate the LDT */
2459 if (!ldt_table) {
2460 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2461 if (!ldt_table)
2462 return -TARGET_ENOMEM;
2463 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2464 env->ldt.base = h2g((unsigned long)ldt_table);
2465 env->ldt.limit = 0xffff;
2466 }
2467
2468 /* NOTE: same code as Linux kernel */
2469 /* Allow LDTs to be cleared by the user. */
2470 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2471 if (oldmode ||
2472 (contents == 0 &&
2473 read_exec_only == 1 &&
2474 seg_32bit == 0 &&
2475 limit_in_pages == 0 &&
2476 seg_not_present == 1 &&
2477 useable == 0 )) {
2478 entry_1 = 0;
2479 entry_2 = 0;
2480 goto install;
2481 }
2482 }
2483
2484 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2485 (ldt_info.limit & 0x0ffff);
2486 entry_2 = (ldt_info.base_addr & 0xff000000) |
2487 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2488 (ldt_info.limit & 0xf0000) |
2489 ((read_exec_only ^ 1) << 9) |
2490 (contents << 10) |
2491 ((seg_not_present ^ 1) << 15) |
2492 (seg_32bit << 22) |
2493 (limit_in_pages << 23) |
2494 (lm << 21) |
2495 0x7000;
2496 if (!oldmode)
2497 entry_2 |= (useable << 20);
2498
2499 /* Install the new entry ... */
2500 install:
2501 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
2502 lp[0] = tswap32(entry_1);
2503 lp[1] = tswap32(entry_2);
2504 return 0;
2505 }
2506
2507 /* specific and weird i386 syscalls */
2508 abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
2509 unsigned long bytecount)
2510 {
2511 abi_long ret;
2512
2513 switch (func) {
2514 case 0:
2515 ret = read_ldt(ptr, bytecount);
2516 break;
2517 case 1:
2518 ret = write_ldt(env, ptr, bytecount, 1);
2519 break;
2520 case 0x11:
2521 ret = write_ldt(env, ptr, bytecount, 0);
2522 break;
2523 default:
2524 ret = -TARGET_ENOSYS;
2525 break;
2526 }
2527 return ret;
2528 }
2529
2530 abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
2531 {
2532 uint64_t *gdt_table = g2h(env->gdt.base);
2533 struct target_modify_ldt_ldt_s ldt_info;
2534 struct target_modify_ldt_ldt_s *target_ldt_info;
2535 int seg_32bit, contents, read_exec_only, limit_in_pages;
2536 int seg_not_present, useable, lm;
2537 uint32_t *lp, entry_1, entry_2;
2538 int i;
2539
2540 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
2541 if (!target_ldt_info)
2542 return -TARGET_EFAULT;
2543 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2544 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2545 ldt_info.limit = tswap32(target_ldt_info->limit);
2546 ldt_info.flags = tswap32(target_ldt_info->flags);
2547 if (ldt_info.entry_number == -1) {
2548 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
2549 if (gdt_table[i] == 0) {
2550 ldt_info.entry_number = i;
2551 target_ldt_info->entry_number = tswap32(i);
2552 break;
2553 }
2554 }
2555 }
2556 unlock_user_struct(target_ldt_info, ptr, 1);
2557
2558 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
2559 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
2560 return -TARGET_EINVAL;
2561 seg_32bit = ldt_info.flags & 1;
2562 contents = (ldt_info.flags >> 1) & 3;
2563 read_exec_only = (ldt_info.flags >> 3) & 1;
2564 limit_in_pages = (ldt_info.flags >> 4) & 1;
2565 seg_not_present = (ldt_info.flags >> 5) & 1;
2566 useable = (ldt_info.flags >> 6) & 1;
2567 #ifdef TARGET_ABI32
2568 lm = 0;
2569 #else
2570 lm = (ldt_info.flags >> 7) & 1;
2571 #endif
2572
2573 if (contents == 3) {
2574 if (seg_not_present == 0)
2575 return -TARGET_EINVAL;
2576 }
2577
2578 /* NOTE: same code as Linux kernel */
2579 /* Allow LDTs to be cleared by the user. */
2580 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2581 if ((contents == 0 &&
2582 read_exec_only == 1 &&
2583 seg_32bit == 0 &&
2584 limit_in_pages == 0 &&
2585 seg_not_present == 1 &&
2586 useable == 0 )) {
2587 entry_1 = 0;
2588 entry_2 = 0;
2589 goto install;
2590 }
2591 }
2592
2593 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2594 (ldt_info.limit & 0x0ffff);
2595 entry_2 = (ldt_info.base_addr & 0xff000000) |
2596 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2597 (ldt_info.limit & 0xf0000) |
2598 ((read_exec_only ^ 1) << 9) |
2599 (contents << 10) |
2600 ((seg_not_present ^ 1) << 15) |
2601 (seg_32bit << 22) |
2602 (limit_in_pages << 23) |
2603 (useable << 20) |
2604 (lm << 21) |
2605 0x7000;
2606
2607 /* Install the new entry ... */
2608 install:
2609 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
2610 lp[0] = tswap32(entry_1);
2611 lp[1] = tswap32(entry_2);
2612 return 0;
2613 }
2614
2615 abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
2616 {
2617 struct target_modify_ldt_ldt_s *target_ldt_info;
2618 uint64_t *gdt_table = g2h(env->gdt.base);
2619 uint32_t base_addr, limit, flags;
2620 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
2621 int seg_not_present, useable, lm;
2622 uint32_t *lp, entry_1, entry_2;
2623
2624 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
2625 if (!target_ldt_info)
2626 return -TARGET_EFAULT;
2627 idx = tswap32(target_ldt_info->entry_number);
2628 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
2629 idx > TARGET_GDT_ENTRY_TLS_MAX) {
2630 unlock_user_struct(target_ldt_info, ptr, 1);
2631 return -TARGET_EINVAL;
2632 }
2633 lp = (uint32_t *)(gdt_table + idx);
2634 entry_1 = tswap32(lp[0]);
2635 entry_2 = tswap32(lp[1]);
2636
2637 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
2638 contents = (entry_2 >> 10) & 3;
2639 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
2640 seg_32bit = (entry_2 >> 22) & 1;
2641 limit_in_pages = (entry_2 >> 23) & 1;
2642 useable = (entry_2 >> 20) & 1;
2643 #ifdef TARGET_ABI32
2644 lm = 0;
2645 #else
2646 lm = (entry_2 >> 21) & 1;
2647 #endif
2648 flags = (seg_32bit << 0) | (contents << 1) |
2649 (read_exec_only << 3) | (limit_in_pages << 4) |
2650 (seg_not_present << 5) | (useable << 6) | (lm << 7);
2651 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
2652 base_addr = (entry_1 >> 16) |
2653 (entry_2 & 0xff000000) |
2654 ((entry_2 & 0xff) << 16);
2655 target_ldt_info->base_addr = tswapl(base_addr);
2656 target_ldt_info->limit = tswap32(limit);
2657 target_ldt_info->flags = tswap32(flags);
2658 unlock_user_struct(target_ldt_info, ptr, 1);
2659 return 0;
2660 }
2661
2662 #ifndef TARGET_ABI32
2663 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
2664 {
2665 abi_long ret;
2666 abi_ulong val;
2667 int idx;
2668
2669 switch(code) {
2670 case TARGET_ARCH_SET_GS:
2671 case TARGET_ARCH_SET_FS:
2672 if (code == TARGET_ARCH_SET_GS)
2673 idx = R_GS;
2674 else
2675 idx = R_FS;
2676 cpu_x86_load_seg(env, idx, 0);
2677 env->segs[idx].base = addr;
2678 break;
2679 case TARGET_ARCH_GET_GS:
2680 case TARGET_ARCH_GET_FS:
2681 if (code == TARGET_ARCH_GET_GS)
2682 idx = R_GS;
2683 else
2684 idx = R_FS;
2685 val = env->segs[idx].base;
2686 if (put_user(val, addr, abi_ulong))
2687 return -TARGET_EFAULT;
2688 break;
2689 default:
2690 ret = -TARGET_EINVAL;
2691 break;
2692 }
2693 return 0;
2694 }
2695 #endif
2696
2697 #endif /* defined(TARGET_I386) */
2698
2699 /* this stack is the equivalent of the kernel stack associated with a
2700 thread/process */
2701 #define NEW_STACK_SIZE 8192
2702
2703 static int clone_func(void *arg)
2704 {
2705 CPUState *env = arg;
2706 cpu_loop(env);
2707 /* never exits */
2708 return 0;
2709 }
2710
2711 /* do_fork() Must return host values and target errnos (unlike most
2712 do_*() functions). */
2713 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp)
2714 {
2715 int ret;
2716 TaskState *ts;
2717 uint8_t *new_stack;
2718 CPUState *new_env;
2719
2720 if (flags & CLONE_VM) {
2721 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
2722 memset(ts, 0, sizeof(TaskState));
2723 new_stack = ts->stack;
2724 ts->used = 1;
2725 /* add in task state list */
2726 ts->next = first_task_state;
2727 first_task_state = ts;
2728 /* we create a new CPU instance. */
2729 new_env = cpu_copy(env);
2730 #if defined(TARGET_I386)
2731 if (!newsp)
2732 newsp = env->regs[R_ESP];
2733 new_env->regs[R_ESP] = newsp;
2734 new_env->regs[R_EAX] = 0;
2735 #elif defined(TARGET_ARM)
2736 if (!newsp)
2737 newsp = env->regs[13];
2738 new_env->regs[13] = newsp;
2739 new_env->regs[0] = 0;
2740 #elif defined(TARGET_SPARC)
2741 if (!newsp)
2742 newsp = env->regwptr[22];
2743 new_env->regwptr[22] = newsp;
2744 new_env->regwptr[0] = 0;
2745 /* XXXXX */
2746 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
2747 #elif defined(TARGET_M68K)
2748 if (!newsp)
2749 newsp = env->aregs[7];
2750 new_env->aregs[7] = newsp;
2751 new_env->dregs[0] = 0;
2752 /* ??? is this sufficient? */
2753 #elif defined(TARGET_MIPS)
2754 if (!newsp)
2755 newsp = env->gpr[29][env->current_tc];
2756 new_env->gpr[29][env->current_tc] = newsp;
2757 #elif defined(TARGET_PPC)
2758 if (!newsp)
2759 newsp = env->gpr[1];
2760 new_env->gpr[1] = newsp;
2761 {
2762 int i;
2763 for (i = 7; i < 32; i++)
2764 new_env->gpr[i] = 0;
2765 }
2766 #elif defined(TARGET_SH4)
2767 if (!newsp)
2768 newsp = env->gregs[15];
2769 new_env->gregs[15] = newsp;
2770 /* XXXXX */
2771 #elif defined(TARGET_ALPHA)
2772 if (!newsp)
2773 newsp = env->ir[30];
2774 new_env->ir[30] = newsp;
2775 /* ? */
2776 {
2777 int i;
2778 for (i = 7; i < 30; i++)
2779 new_env->ir[i] = 0;
2780 }
2781 #elif defined(TARGET_CRIS)
2782 if (!newsp)
2783 newsp = env->regs[14];
2784 new_env->regs[14] = newsp;
2785 #else
2786 #error unsupported target CPU
2787 #endif
2788 new_env->opaque = ts;
2789 #ifdef __ia64__
2790 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2791 #else
2792 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2793 #endif
2794 } else {
2795 /* if no CLONE_VM, we consider it is a fork */
2796 if ((flags & ~CSIGNAL) != 0)
2797 return -EINVAL;
2798 ret = fork();
2799 }
2800 return ret;
2801 }
2802
2803 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
2804 {
2805 struct flock fl;
2806 struct target_flock *target_fl;
2807 struct flock64 fl64;
2808 struct target_flock64 *target_fl64;
2809 abi_long ret;
2810
2811 switch(cmd) {
2812 case TARGET_F_GETLK:
2813 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
2814 return -TARGET_EFAULT;
2815 fl.l_type = tswap16(target_fl->l_type);
2816 fl.l_whence = tswap16(target_fl->l_whence);
2817 fl.l_start = tswapl(target_fl->l_start);
2818 fl.l_len = tswapl(target_fl->l_len);
2819 fl.l_pid = tswapl(target_fl->l_pid);
2820 unlock_user_struct(target_fl, arg, 0);
2821 ret = get_errno(fcntl(fd, cmd, &fl));
2822 if (ret == 0) {
2823 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
2824 return -TARGET_EFAULT;
2825 target_fl->l_type = tswap16(fl.l_type);
2826 target_fl->l_whence = tswap16(fl.l_whence);
2827 target_fl->l_start = tswapl(fl.l_start);
2828 target_fl->l_len = tswapl(fl.l_len);
2829 target_fl->l_pid = tswapl(fl.l_pid);
2830 unlock_user_struct(target_fl, arg, 1);
2831 }
2832 break;
2833
2834 case TARGET_F_SETLK:
2835 case TARGET_F_SETLKW:
2836 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
2837 return -TARGET_EFAULT;
2838 fl.l_type = tswap16(target_fl->l_type);
2839 fl.l_whence = tswap16(target_fl->l_whence);
2840 fl.l_start = tswapl(target_fl->l_start);
2841 fl.l_len = tswapl(target_fl->l_len);
2842 fl.l_pid = tswapl(target_fl->l_pid);
2843 unlock_user_struct(target_fl, arg, 0);
2844 ret = get_errno(fcntl(fd, cmd, &fl));
2845 break;
2846
2847 case TARGET_F_GETLK64:
2848 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
2849 return -TARGET_EFAULT;
2850 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2851 fl64.l_whence = tswap16(target_fl64->l_whence);
2852 fl64.l_start = tswapl(target_fl64->l_start);
2853 fl64.l_len = tswapl(target_fl64->l_len);
2854 fl64.l_pid = tswap16(target_fl64->l_pid);
2855 unlock_user_struct(target_fl64, arg, 0);
2856 ret = get_errno(fcntl(fd, cmd >> 1, &fl64));
2857 if (ret == 0) {
2858 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
2859 return -TARGET_EFAULT;
2860 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
2861 target_fl64->l_whence = tswap16(fl64.l_whence);
2862 target_fl64->l_start = tswapl(fl64.l_start);
2863 target_fl64->l_len = tswapl(fl64.l_len);
2864 target_fl64->l_pid = tswapl(fl64.l_pid);
2865 unlock_user_struct(target_fl64, arg, 1);
2866 }
2867 break;
2868 case TARGET_F_SETLK64:
2869 case TARGET_F_SETLKW64:
2870 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
2871 return -TARGET_EFAULT;
2872 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2873 fl64.l_whence = tswap16(target_fl64->l_whence);
2874 fl64.l_start = tswapl(target_fl64->l_start);
2875 fl64.l_len = tswapl(target_fl64->l_len);
2876 fl64.l_pid = tswap16(target_fl64->l_pid);
2877 unlock_user_struct(target_fl64, arg, 0);
2878 ret = get_errno(fcntl(fd, cmd >> 1, &fl64));
2879 break;
2880
2881 case F_GETFL:
2882 ret = get_errno(fcntl(fd, cmd, arg));
2883 if (ret >= 0) {
2884 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
2885 }
2886 break;
2887
2888 case F_SETFL:
2889 ret = get_errno(fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
2890 break;
2891
2892 default:
2893 ret = get_errno(fcntl(fd, cmd, arg));
2894 break;
2895 }
2896 return ret;
2897 }
2898
2899 #ifdef USE_UID16
2900
2901 static inline int high2lowuid(int uid)
2902 {
2903 if (uid > 65535)
2904 return 65534;
2905 else
2906 return uid;
2907 }
2908
2909 static inline int high2lowgid(int gid)
2910 {
2911 if (gid > 65535)
2912 return 65534;
2913 else
2914 return gid;
2915 }
2916
2917 static inline int low2highuid(int uid)
2918 {
2919 if ((int16_t)uid == -1)
2920 return -1;
2921 else
2922 return uid;
2923 }
2924
2925 static inline int low2highgid(int gid)
2926 {
2927 if ((int16_t)gid == -1)
2928 return -1;
2929 else
2930 return gid;
2931 }
2932
2933 #endif /* USE_UID16 */
2934
2935 void syscall_init(void)
2936 {
2937 IOCTLEntry *ie;
2938 const argtype *arg_type;
2939 int size;
2940 int i;
2941
2942 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
2943 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
2944 #include "syscall_types.h"
2945 #undef STRUCT
2946 #undef STRUCT_SPECIAL
2947
2948 /* we patch the ioctl size if necessary. We rely on the fact that
2949 no ioctl has all the bits at '1' in the size field */
2950 ie = ioctl_entries;
2951 while (ie->target_cmd != 0) {
2952 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
2953 TARGET_IOC_SIZEMASK) {
2954 arg_type = ie->arg_type;
2955 if (arg_type[0] != TYPE_PTR) {
2956 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2957 ie->target_cmd);
2958 exit(1);
2959 }
2960 arg_type++;
2961 size = thunk_type_size(arg_type, 0);
2962 ie->target_cmd = (ie->target_cmd &
2963 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
2964 (size << TARGET_IOC_SIZESHIFT);
2965 }
2966
2967 /* Build target_to_host_errno_table[] table from
2968 * host_to_target_errno_table[]. */
2969 for (i=0; i < ERRNO_TABLE_SIZE; i++)
2970 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
2971
2972 /* automatic consistency check if same arch */
2973 #if defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)
2974 if (ie->target_cmd != ie->host_cmd) {
2975 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
2976 ie->target_cmd, ie->host_cmd);
2977 }
2978 #endif
2979 ie++;
2980 }
2981 }
2982
2983 #if TARGET_ABI_BITS == 32
2984 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
2985 {
2986 #ifdef TARGET_WORDS_BIG_ENDIAN
2987 return ((uint64_t)word0 << 32) | word1;
2988 #else
2989 return ((uint64_t)word1 << 32) | word0;
2990 #endif
2991 }
2992 #else /* TARGET_ABI_BITS == 32 */
2993 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
2994 {
2995 return word0;
2996 }
2997 #endif /* TARGET_ABI_BITS != 32 */
2998
2999 #ifdef TARGET_NR_truncate64
3000 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
3001 abi_long arg2,
3002 abi_long arg3,
3003 abi_long arg4)
3004 {
3005 #ifdef TARGET_ARM
3006 if (((CPUARMState *)cpu_env)->eabi)
3007 {
3008 arg2 = arg3;
3009 arg3 = arg4;
3010 }
3011 #endif
3012 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
3013 }
3014 #endif
3015
3016 #ifdef TARGET_NR_ftruncate64
3017 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
3018 abi_long arg2,
3019 abi_long arg3,
3020 abi_long arg4)
3021 {
3022 #ifdef TARGET_ARM
3023 if (((CPUARMState *)cpu_env)->eabi)
3024 {
3025 arg2 = arg3;
3026 arg3 = arg4;
3027 }
3028 #endif
3029 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
3030 }
3031 #endif
3032
3033 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
3034 abi_ulong target_addr)
3035 {
3036 struct target_timespec *target_ts;
3037
3038 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
3039 return -TARGET_EFAULT;
3040 host_ts->tv_sec = tswapl(target_ts->tv_sec);
3041 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
3042 unlock_user_struct(target_ts, target_addr, 0);
3043 }
3044
3045 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
3046 struct timespec *host_ts)
3047 {
3048 struct target_timespec *target_ts;
3049
3050 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
3051 return -TARGET_EFAULT;
3052 target_ts->tv_sec = tswapl(host_ts->tv_sec);
3053 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
3054 unlock_user_struct(target_ts, target_addr, 1);
3055 }
3056
3057 /* do_syscall() should always have a single exit point at the end so
3058 that actions, such as logging of syscall results, can be performed.
3059 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
3060 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
3061 abi_long arg2, abi_long arg3, abi_long arg4,
3062 abi_long arg5, abi_long arg6)
3063 {
3064 abi_long ret;
3065 struct stat st;
3066 struct statfs stfs;
3067 void *p;
3068
3069 #ifdef DEBUG
3070 gemu_log("syscall %d", num);
3071 #endif
3072 if(do_strace)
3073 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
3074
3075 switch(num) {
3076 case TARGET_NR_exit:
3077 #ifdef HAVE_GPROF
3078 _mcleanup();
3079 #endif
3080 gdb_exit(cpu_env, arg1);
3081 /* XXX: should free thread stack and CPU env */
3082 _exit(arg1);
3083 ret = 0; /* avoid warning */
3084 break;
3085 case TARGET_NR_read:
3086 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
3087 goto efault;
3088 ret = get_errno(read(arg1, p, arg3));
3089 unlock_user(p, arg2, ret);
3090 break;
3091 case TARGET_NR_write:
3092 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
3093 goto efault;
3094 ret = get_errno(write(arg1, p, arg3));
3095 unlock_user(p, arg2, 0);
3096 break;
3097 case TARGET_NR_open:
3098 if (!(p = lock_user_string(arg1)))
3099 goto efault;
3100 ret = get_errno(open(path(p),
3101 target_to_host_bitmask(arg2, fcntl_flags_tbl),
3102 arg3));
3103 unlock_user(p, arg1, 0);
3104 break;
3105 #if defined(TARGET_NR_openat) && defined(__NR_openat)
3106 case TARGET_NR_openat:
3107 if (!(p = lock_user_string(arg2)))
3108 goto efault;
3109 ret = get_errno(sys_openat(arg1,
3110 path(p),
3111 target_to_host_bitmask(arg3, fcntl_flags_tbl),
3112 arg4));
3113 unlock_user(p, arg2, 0);
3114 break;
3115 #endif
3116 case TARGET_NR_close:
3117 ret = get_errno(close(arg1));
3118 break;
3119 case TARGET_NR_brk:
3120 ret = do_brk(arg1);
3121 break;
3122 case TARGET_NR_fork:
3123 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
3124 break;
3125 #ifdef TARGET_NR_waitpid
3126 case TARGET_NR_waitpid:
3127 {
3128 int status;
3129 ret = get_errno(waitpid(arg1, &status, arg3));
3130 if (!is_error(ret) && arg2
3131 && put_user_s32(status, arg2))
3132 goto efault;
3133 }
3134 break;
3135 #endif
3136 #ifdef TARGET_NR_creat /* not on alpha */
3137 case TARGET_NR_creat:
3138 if (!(p = lock_user_string(arg1)))
3139 goto efault;
3140 ret = get_errno(creat(p, arg2));
3141 unlock_user(p, arg1, 0);
3142 break;
3143 #endif
3144 case TARGET_NR_link:
3145 {
3146 void * p2;
3147 p = lock_user_string(arg1);
3148 p2 = lock_user_string(arg2);
3149 if (!p || !p2)
3150 ret = -TARGET_EFAULT;
3151 else
3152 ret = get_errno(link(p, p2));
3153 unlock_user(p2, arg2, 0);
3154 unlock_user(p, arg1, 0);
3155 }
3156 break;
3157 #if defined(TARGET_NR_linkat) && defined(__NR_linkat)
3158 case TARGET_NR_linkat:
3159 {
3160 void * p2 = NULL;
3161 if (!arg2 || !arg4)
3162 goto efault;
3163 p = lock_user_string(arg2);
3164 p2 = lock_user_string(arg4);
3165 if (!p || !p2)
3166 ret = -TARGET_EFAULT;
3167 else
3168 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
3169 unlock_user(p, arg2, 0);
3170 unlock_user(p2, arg4, 0);
3171 }
3172 break;
3173 #endif
3174 case TARGET_NR_unlink:
3175 if (!(p = lock_user_string(arg1)))
3176 goto efault;
3177 ret = get_errno(unlink(p));
3178 unlock_user(p, arg1, 0);
3179 break;
3180 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
3181 case TARGET_NR_unlinkat:
3182 if (!(p = lock_user_string(arg2)))
3183 goto efault;
3184 ret = get_errno(sys_unlinkat(arg1, p, arg3));
3185 unlock_user(p, arg2, 0);
3186 break;
3187 #endif
3188 case TARGET_NR_execve:
3189 {
3190 char **argp, **envp;
3191 int argc, envc;
3192 abi_ulong gp;
3193 abi_ulong guest_argp;
3194 abi_ulong guest_envp;
3195 abi_ulong addr;
3196 char **q;
3197
3198 argc = 0;
3199 guest_argp = arg2;
3200 for (gp = guest_argp; ; gp += sizeof(abi_ulong)) {
3201 if (get_user_ual(addr, gp))
3202 goto efault;
3203 if (!addr)
3204 break;
3205 argc++;
3206 }
3207 envc = 0;
3208 guest_envp = arg3;
3209 for (gp = guest_envp; ; gp += sizeof(abi_ulong)) {
3210 if (get_user_ual(addr, gp))
3211 goto efault;
3212 if (!addr)
3213 break;
3214 envc++;
3215 }
3216
3217 argp = alloca((argc + 1) * sizeof(void *));
3218 envp = alloca((envc + 1) * sizeof(void *));
3219
3220 for (gp = guest_argp, q = argp; ;
3221 gp += sizeof(abi_ulong), q++) {
3222 if (get_user_ual(addr, gp))
3223 goto execve_efault;
3224 if (!addr)
3225 break;
3226 if (!(*q = lock_user_string(addr)))
3227 goto execve_efault;
3228 }
3229 *q = NULL;
3230
3231 for (gp = guest_envp, q = envp; ;
3232 gp += sizeof(abi_ulong), q++) {
3233 if (get_user_ual(addr, gp))
3234 goto execve_efault;
3235 if (!addr)
3236 break;
3237 if (!(*q = lock_user_string(addr)))
3238 goto execve_efault;
3239 }
3240 *q = NULL;
3241
3242 if (!(p = lock_user_string(arg1)))
3243 goto execve_efault;
3244 ret = get_errno(execve(p, argp, envp));
3245 unlock_user(p, arg1, 0);
3246
3247 goto execve_end;
3248
3249 execve_efault:
3250 ret = -TARGET_EFAULT;
3251
3252 execve_end:
3253 for (gp = guest_argp, q = argp; *q;
3254 gp += sizeof(abi_ulong), q++) {
3255 if (get_user_ual(addr, gp)
3256 || !addr)
3257 break;
3258 unlock_user(*q, addr, 0);
3259 }
3260 for (gp = guest_envp, q = envp; *q;
3261 gp += sizeof(abi_ulong), q++) {
3262 if (get_user_ual(addr, gp)
3263 || !addr)
3264 break;
3265 unlock_user(*q, addr, 0);
3266 }
3267 }
3268 break;
3269 case TARGET_NR_chdir:
3270 if (!(p = lock_user_string(arg1)))
3271 goto efault;
3272 ret = get_errno(chdir(p));
3273 unlock_user(p, arg1, 0);
3274 break;
3275 #ifdef TARGET_NR_time
3276 case TARGET_NR_time:
3277 {
3278 time_t host_time;
3279 ret = get_errno(time(&host_time));
3280 if (!is_error(ret)
3281 && arg1
3282 && put_user_sal(host_time, arg1))
3283 goto efault;
3284 }
3285 break;
3286 #endif
3287 case TARGET_NR_mknod:
3288 if (!(p = lock_user_string(arg1)))
3289 goto efault;
3290 ret = get_errno(mknod(p, arg2, arg3));
3291 unlock_user(p, arg1, 0);
3292 break;
3293 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
3294 case TARGET_NR_mknodat:
3295 if (!(p = lock_user_string(arg2)))
3296 goto efault;
3297 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
3298 unlock_user(p, arg2, 0);
3299 break;
3300 #endif
3301 case TARGET_NR_chmod:
3302 if (!(p = lock_user_string(arg1)))
3303 goto efault;
3304 ret = get_errno(chmod(p, arg2));
3305 unlock_user(p, arg1, 0);
3306 break;
3307 #ifdef TARGET_NR_break
3308 case TARGET_NR_break:
3309 goto unimplemented;
3310 #endif
3311 #ifdef TARGET_NR_oldstat
3312 case TARGET_NR_oldstat:
3313 goto unimplemented;
3314 #endif
3315 case TARGET_NR_lseek:
3316 ret = get_errno(lseek(arg1, arg2, arg3));
3317 break;
3318 #ifdef TARGET_NR_getxpid
3319 case TARGET_NR_getxpid:
3320 #else
3321 case TARGET_NR_getpid:
3322 #endif
3323 ret = get_errno(getpid());
3324 break;
3325 case TARGET_NR_mount:
3326 {
3327 /* need to look at the data field */
3328 void *p2, *p3;
3329 p = lock_user_string(arg1);
3330 p2 = lock_user_string(arg2);
3331 p3 = lock_user_string(arg3);
3332 if (!p || !p2 || !p3)
3333 ret = -TARGET_EFAULT;
3334 else
3335 /* FIXME - arg5 should be locked, but it isn't clear how to
3336 * do that since it's not guaranteed to be a NULL-terminated
3337 * string.
3338 */
3339 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
3340 unlock_user(p, arg1, 0);
3341 unlock_user(p2, arg2, 0);
3342 unlock_user(p3, arg3, 0);
3343 break;
3344 }
3345 #ifdef TARGET_NR_umount
3346 case TARGET_NR_umount:
3347 if (!(p = lock_user_string(arg1)))
3348 goto efault;
3349 ret = get_errno(umount(p));
3350 unlock_user(p, arg1, 0);
3351 break;
3352 #endif
3353 #ifdef TARGET_NR_stime /* not on alpha */
3354 case TARGET_NR_stime:
3355 {
3356 time_t host_time;
3357 if (get_user_sal(host_time, arg1))
3358 goto efault;
3359 ret = get_errno(stime(&host_time));
3360 }
3361 break;
3362 #endif
3363 case TARGET_NR_ptrace:
3364 goto unimplemented;
3365 #ifdef TARGET_NR_alarm /* not on alpha */
3366 case TARGET_NR_alarm:
3367 ret = alarm(arg1);
3368 break;
3369 #endif
3370 #ifdef TARGET_NR_oldfstat
3371 case TARGET_NR_oldfstat:
3372 goto unimplemented;
3373 #endif
3374 #ifdef TARGET_NR_pause /* not on alpha */
3375 case TARGET_NR_pause:
3376 ret = get_errno(pause());
3377 break;
3378 #endif
3379 #ifdef TARGET_NR_utime
3380 case TARGET_NR_utime:
3381 {
3382 struct utimbuf tbuf, *host_tbuf;
3383 struct target_utimbuf *target_tbuf;
3384 if (arg2) {
3385 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
3386 goto efault;
3387 tbuf.actime = tswapl(target_tbuf->actime);
3388 tbuf.modtime = tswapl(target_tbuf->modtime);
3389 unlock_user_struct(target_tbuf, arg2, 0);
3390 host_tbuf = &tbuf;
3391 } else {
3392 host_tbuf = NULL;
3393 }
3394 if (!(p = lock_user_string(arg1)))
3395 goto efault;
3396 ret = get_errno(utime(p, host_tbuf));
3397 unlock_user(p, arg1, 0);
3398 }
3399 break;
3400 #endif
3401 case TARGET_NR_utimes:
3402 {
3403 struct timeval *tvp, tv[2];
3404 if (arg2) {
3405 if (copy_from_user_timeval(&tv[0], arg2)
3406 || copy_from_user_timeval(&tv[1],
3407 arg2 + sizeof(struct target_timeval)))
3408 goto efault;
3409 tvp = tv;
3410 } else {
3411 tvp = NULL;
3412 }
3413 if (!(p = lock_user_string(arg1)))
3414 goto efault;
3415 ret = get_errno(utimes(p, tvp));
3416 unlock_user(p, arg1, 0);
3417 }
3418 break;
3419 #ifdef TARGET_NR_stty
3420 case TARGET_NR_stty:
3421 goto unimplemented;
3422 #endif
3423 #ifdef TARGET_NR_gtty
3424 case TARGET_NR_gtty:
3425 goto unimplemented;
3426 #endif
3427 case TARGET_NR_access:
3428 if (!(p = lock_user_string(arg1)))
3429 goto efault;
3430 ret = get_errno(access(p, arg2));
3431 unlock_user(p, arg1, 0);
3432 break;
3433 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
3434 case TARGET_NR_faccessat:
3435 if (!(p = lock_user_string(arg2)))
3436 goto efault;
3437 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4));
3438 unlock_user(p, arg2, 0);
3439 break;
3440 #endif
3441 #ifdef TARGET_NR_nice /* not on alpha */
3442 case TARGET_NR_nice:
3443 ret = get_errno(nice(arg1));
3444 break;
3445 #endif
3446 #ifdef TARGET_NR_ftime
3447 case TARGET_NR_ftime:
3448 goto unimplemented;
3449 #endif
3450 case TARGET_NR_sync:
3451 sync();
3452 ret = 0;
3453 break;
3454 case TARGET_NR_kill:
3455 ret = get_errno(kill(arg1, arg2));
3456 break;
3457 case TARGET_NR_rename:
3458 {
3459 void *p2;
3460 p = lock_user_string(arg1);
3461 p2 = lock_user_string(arg2);
3462 if (!p || !p2)
3463 ret = -TARGET_EFAULT;
3464 else
3465 ret = get_errno(rename(p, p2));
3466 unlock_user(p2, arg2, 0);
3467 unlock_user(p, arg1, 0);
3468 }
3469 break;
3470 #if defined(TARGET_NR_renameat) && defined(__NR_renameat)
3471 case TARGET_NR_renameat:
3472 {
3473 void *p2;
3474 p = lock_user_string(arg2);
3475 p2 = lock_user_string(arg4);
3476 if (!p || !p2)
3477 ret = -TARGET_EFAULT;
3478 else
3479 ret = get_errno(sys_renameat(arg1, p, arg3, p2));
3480 unlock_user(p2, arg4, 0);
3481 unlock_user(p, arg2, 0);
3482 }
3483 break;
3484 #endif
3485 case TARGET_NR_mkdir:
3486 if (!(p = lock_user_string(arg1)))
3487 goto efault;
3488 ret = get_errno(mkdir(p, arg2));
3489 unlock_user(p, arg1, 0);
3490 break;
3491 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
3492 case TARGET_NR_mkdirat:
3493 if (!(p = lock_user_string(arg2)))
3494 goto efault;
3495 ret = get_errno(sys_mkdirat(arg1, p, arg3));
3496 unlock_user(p, arg2, 0);
3497 break;
3498 #endif
3499 case TARGET_NR_rmdir:
3500 if (!(p = lock_user_string(arg1)))
3501 goto efault;
3502 ret = get_errno(rmdir(p));
3503 unlock_user(p, arg1, 0);
3504 break;
3505 case TARGET_NR_dup:
3506 ret = get_errno(dup(arg1));
3507 break;
3508 case TARGET_NR_pipe:
3509 {
3510 int host_pipe[2];
3511 ret = get_errno(pipe(host_pipe));
3512 if (!is_error(ret)) {
3513 #if defined(TARGET_MIPS)
3514 CPUMIPSState *env = (CPUMIPSState*)cpu_env;
3515 env->gpr[3][env->current_tc] = host_pipe[1];
3516 ret = host_pipe[0];
3517 #else
3518 if (put_user_s32(host_pipe[0], arg1)
3519 || put_user_s32(host_pipe[1], arg1 + sizeof(host_pipe[0])))
3520 goto efault;
3521 #endif
3522 }
3523 }
3524 break;
3525 case TARGET_NR_times:
3526 {
3527 struct target_tms *tmsp;
3528 struct tms tms;
3529 ret = get_errno(times(&tms));
3530 if (arg1) {
3531 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
3532 if (!tmsp)
3533 goto efault;
3534 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
3535 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
3536 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
3537 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
3538 }
3539 if (!is_error(ret))
3540 ret = host_to_target_clock_t(ret);
3541 }
3542 break;
3543 #ifdef TARGET_NR_prof
3544 case TARGET_NR_prof:
3545 goto unimplemented;
3546 #endif
3547 #ifdef TARGET_NR_signal
3548 case TARGET_NR_signal:
3549 goto unimplemented;
3550 #endif
3551 case TARGET_NR_acct:
3552 if (!(p = lock_user_string(arg1)))
3553 goto efault;
3554 ret = get_errno(acct(path(p)));
3555 unlock_user(p, arg1, 0);
3556 break;
3557 #ifdef TARGET_NR_umount2 /* not on alpha */
3558 case TARGET_NR_umount2:
3559 if (!(p = lock_user_string(arg1)))
3560 goto efault;
3561 ret = get_errno(umount2(p, arg2));
3562 unlock_user(p, arg1, 0);
3563 break;
3564 #endif
3565 #ifdef TARGET_NR_lock
3566 case TARGET_NR_lock:
3567 goto unimplemented;
3568 #endif
3569 case TARGET_NR_ioctl:
3570 ret = do_ioctl(arg1, arg2, arg3);
3571 break;
3572 case TARGET_NR_fcntl:
3573 ret = do_fcntl(arg1, arg2, arg3);
3574 break;
3575 #ifdef TARGET_NR_mpx
3576 case TARGET_NR_mpx:
3577 goto unimplemented;
3578 #endif
3579 case TARGET_NR_setpgid:
3580 ret = get_errno(setpgid(arg1, arg2));
3581 break;
3582 #ifdef TARGET_NR_ulimit
3583 case TARGET_NR_ulimit:
3584 goto unimplemented;
3585 #endif
3586 #ifdef TARGET_NR_oldolduname
3587 case TARGET_NR_oldolduname:
3588 goto unimplemented;
3589 #endif
3590 case TARGET_NR_umask:
3591 ret = get_errno(umask(arg1));
3592 break;
3593 case TARGET_NR_chroot:
3594 if (!(p = lock_user_string(arg1)))
3595 goto efault;
3596 ret = get_errno(chroot(p));
3597 unlock_user(p, arg1, 0);
3598 break;
3599 case TARGET_NR_ustat:
3600 goto unimplemented;
3601 case TARGET_NR_dup2:
3602 ret = get_errno(dup2(arg1, arg2));
3603 break;
3604 #ifdef TARGET_NR_getppid /* not on alpha */
3605 case TARGET_NR_getppid:
3606 ret = get_errno(getppid());
3607 break;
3608 #endif
3609 case TARGET_NR_getpgrp:
3610 ret = get_errno(getpgrp());
3611 break;
3612 case TARGET_NR_setsid:
3613 ret = get_errno(setsid());
3614 break;
3615 #ifdef TARGET_NR_sigaction
3616 case TARGET_NR_sigaction:
3617 {
3618 #if !defined(TARGET_MIPS)
3619 struct target_old_sigaction *old_act;
3620 struct target_sigaction act, oact, *pact;
3621 if (arg2) {
3622 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
3623 goto efault;
3624 act._sa_handler = old_act->_sa_handler;
3625 target_siginitset(&act.sa_mask, old_act->sa_mask);
3626 act.sa_flags = old_act->sa_flags;
3627 act.sa_restorer = old_act->sa_restorer;
3628 unlock_user_struct(old_act, arg2, 0);
3629 pact = &act;
3630 } else {
3631 pact = NULL;
3632 }
3633 ret = get_errno(do_sigaction(arg1, pact, &oact));
3634 if (!is_error(ret) && arg3) {
3635 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
3636 goto efault;
3637 old_act->_sa_handler = oact._sa_handler;
3638 old_act->sa_mask = oact.sa_mask.sig[0];
3639 old_act->sa_flags = oact.sa_flags;
3640 old_act->sa_restorer = oact.sa_restorer;
3641 unlock_user_struct(old_act, arg3, 1);
3642 }
3643 #else
3644 struct target_sigaction act, oact, *pact, *old_act;
3645
3646 if (arg2) {
3647 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
3648 goto efault;
3649 act._sa_handler = old_act->_sa_handler;
3650 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
3651 act.sa_flags = old_act->sa_flags;
3652 unlock_user_struct(old_act, arg2, 0);
3653 pact = &act;
3654 } else {
3655 pact = NULL;
3656 }
3657
3658 ret = get_errno(do_sigaction(arg1, pact, &oact));
3659
3660 if (!is_error(ret) && arg3) {
3661 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
3662 goto efault;
3663 old_act->_sa_handler = oact._sa_handler;
3664 old_act->sa_flags = oact.sa_flags;
3665 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
3666 old_act->sa_mask.sig[1] = 0;
3667 old_act->sa_mask.sig[2] = 0;
3668 old_act->sa_mask.sig[3] = 0;
3669 unlock_user_struct(old_act, arg3, 1);
3670 }
3671 #endif
3672 }
3673 break;
3674 #endif
3675 case TARGET_NR_rt_sigaction:
3676 {
3677 struct target_sigaction *act;
3678 struct target_sigaction *oact;
3679
3680 if (arg2) {
3681 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
3682 goto efault;
3683 } else
3684 act = NULL;
3685 if (arg3) {
3686 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
3687 ret = -TARGET_EFAULT;
3688 goto rt_sigaction_fail;
3689 }
3690 } else
3691 oact = NULL;
3692 ret = get_errno(do_sigaction(arg1, act, oact));
3693 rt_sigaction_fail:
3694 if (act)
3695 unlock_user_struct(act, arg2, 0);
3696 if (oact)
3697 unlock_user_struct(oact, arg3, 1);
3698 }
3699 break;
3700 #ifdef TARGET_NR_sgetmask /* not on alpha */
3701 case TARGET_NR_sgetmask:
3702 {
3703 sigset_t cur_set;
3704 abi_ulong target_set;
3705 sigprocmask(0, NULL, &cur_set);
3706 host_to_target_old_sigset(&target_set, &cur_set);
3707 ret = target_set;
3708 }
3709 break;
3710 #endif
3711 #ifdef TARGET_NR_ssetmask /* not on alpha */
3712 case TARGET_NR_ssetmask:
3713 {
3714 sigset_t set, oset, cur_set;
3715 abi_ulong target_set = arg1;
3716 sigprocmask(0, NULL, &cur_set);
3717 target_to_host_old_sigset(&set, &target_set);
3718 sigorset(&set, &set, &cur_set);
3719 sigprocmask(SIG_SETMASK, &set, &oset);
3720 host_to_target_old_sigset(&target_set, &oset);
3721 ret = target_set;
3722 }
3723 break;
3724 #endif
3725 #ifdef TARGET_NR_sigprocmask
3726 case TARGET_NR_sigprocmask:
3727 {
3728 int how = arg1;
3729 sigset_t set, oldset, *set_ptr;
3730
3731 if (arg2) {
3732 switch(how) {
3733 case TARGET_SIG_BLOCK:
3734 how = SIG_BLOCK;
3735 break;
3736 case TARGET_SIG_UNBLOCK:
3737 how = SIG_UNBLOCK;
3738 break;
3739 case TARGET_SIG_SETMASK:
3740 how = SIG_SETMASK;
3741 break;
3742 default:
3743 ret = -TARGET_EINVAL;
3744 goto fail;
3745 }
3746 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
3747 goto efault;
3748 target_to_host_old_sigset(&set, p);
3749 unlock_user(p, arg2, 0);
3750 set_ptr = &set;
3751 } else {
3752 how = 0;
3753 set_ptr = NULL;
3754 }
3755 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
3756 if (!is_error(ret) && arg3) {
3757 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
3758 goto efault;
3759 host_to_target_old_sigset(p, &oldset);
3760 unlock_user(p, arg3, sizeof(target_sigset_t));
3761 }
3762 }
3763 break;
3764 #endif
3765 case TARGET_NR_rt_sigprocmask:
3766 {
3767 int how = arg1;
3768 sigset_t set, oldset, *set_ptr;
3769
3770 if (arg2) {
3771 switch(how) {
3772 case TARGET_SIG_BLOCK:
3773 how = SIG_BLOCK;
3774 break;
3775 case TARGET_SIG_UNBLOCK:
3776 how = SIG_UNBLOCK;
3777 break;
3778 case TARGET_SIG_SETMASK:
3779 how = SIG_SETMASK;
3780 break;
3781 default:
3782 ret = -TARGET_EINVAL;
3783 goto fail;
3784 }
3785 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
3786 goto efault;
3787 target_to_host_sigset(&set, p);
3788 unlock_user(p, arg2, 0);
3789 set_ptr = &set;
3790 } else {
3791 how = 0;
3792 set_ptr = NULL;
3793 }
3794 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
3795 if (!is_error(ret) && arg3) {
3796 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
3797 goto efault;
3798 host_to_target_sigset(p, &oldset);
3799 unlock_user(p, arg3, sizeof(target_sigset_t));
3800 }
3801 }
3802 break;
3803 #ifdef TARGET_NR_sigpending
3804 case TARGET_NR_sigpending:
3805 {
3806 sigset_t set;
3807 ret = get_errno(sigpending(&set));
3808 if (!is_error(ret)) {
3809 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
3810 goto efault;
3811 host_to_target_old_sigset(p, &set);
3812 unlock_user(p, arg1, sizeof(target_sigset_t));
3813 }
3814 }
3815 break;
3816 #endif
3817 case TARGET_NR_rt_sigpending:
3818 {
3819 sigset_t set;
3820 ret = get_errno(sigpending(&set));
3821 if (!is_error(ret)) {
3822 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
3823 goto efault;
3824 host_to_target_sigset(p, &set);
3825 unlock_user(p, arg1, sizeof(target_sigset_t));
3826 }
3827 }
3828 break;
3829 #ifdef TARGET_NR_sigsuspend
3830 case TARGET_NR_sigsuspend:
3831 {
3832 sigset_t set;
3833 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
3834 goto efault;
3835 target_to_host_old_sigset(&set, p);
3836 unlock_user(p, arg1, 0);
3837 ret = get_errno(sigsuspend(&set));
3838 }
3839 break;
3840 #endif
3841 case TARGET_NR_rt_sigsuspend:
3842 {
3843 sigset_t set;
3844 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
3845 goto efault;
3846 target_to_host_sigset(&set, p);
3847 unlock_user(p, arg1, 0);
3848 ret = get_errno(sigsuspend(&set));
3849 }
3850 break;
3851 case TARGET_NR_rt_sigtimedwait:
3852 {
3853 sigset_t set;
3854 struct timespec uts, *puts;
3855 siginfo_t uinfo;
3856
3857 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
3858 goto efault;
3859 target_to_host_sigset(&set, p);
3860 unlock_user(p, arg1, 0);
3861 if (arg3) {
3862 puts = &uts;
3863 target_to_host_timespec(puts, arg3);
3864 } else {
3865 puts = NULL;
3866 }
3867 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
3868 if (!is_error(ret) && arg2) {
3869 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_sigset_t), 0)))
3870 goto efault;
3871 host_to_target_siginfo(p, &uinfo);
3872 unlock_user(p, arg2, sizeof(target_sigset_t));
3873 }
3874 }
3875 break;
3876 case TARGET_NR_rt_sigqueueinfo:
3877 {
3878 siginfo_t uinfo;
3879 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
3880 goto efault;
3881 target_to_host_siginfo(&uinfo, p);
3882 unlock_user(p, arg1, 0);
3883 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
3884 }
3885 break;
3886 #ifdef TARGET_NR_sigreturn
3887 case TARGET_NR_sigreturn:
3888 /* NOTE: ret is eax, so not transcoding must be done */
3889 ret = do_sigreturn(cpu_env);
3890 break;
3891 #endif
3892 case TARGET_NR_rt_sigreturn:
3893 /* NOTE: ret is eax, so not transcoding must be done */
3894 ret = do_rt_sigreturn(cpu_env);
3895 break;
3896 case TARGET_NR_sethostname:
3897 if (!(p = lock_user_string(arg1)))
3898 goto efault;
3899 ret = get_errno(sethostname(p, arg2));
3900 unlock_user(p, arg1, 0);
3901 break;
3902 case TARGET_NR_setrlimit:
3903 {
3904 /* XXX: convert resource ? */
3905 int resource = arg1;
3906 struct target_rlimit *target_rlim;
3907 struct rlimit rlim;
3908 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
3909 goto efault;
3910 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3911 rlim.rlim_max = tswapl(target_rlim->rlim_max);
3912 unlock_user_struct(target_rlim, arg2, 0);
3913 ret = get_errno(setrlimit(resource, &rlim));
3914 }
3915 break;
3916 case TARGET_NR_getrlimit:
3917 {
3918 /* XXX: convert resource ? */
3919 int resource = arg1;
3920 struct target_rlimit *target_rlim;
3921 struct rlimit rlim;
3922
3923 ret = get_errno(getrlimit(resource, &rlim));
3924 if (!is_error(ret)) {
3925 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
3926 goto efault;
3927 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3928 rlim.rlim_max = tswapl(target_rlim->rlim_max);
3929 unlock_user_struct(target_rlim, arg2, 1);
3930 }
3931 }
3932 break;
3933 case TARGET_NR_getrusage:
3934 {
3935 struct rusage rusage;
3936 ret = get_errno(getrusage(arg1, &rusage));
3937 if (!is_error(ret)) {
3938 host_to_target_rusage(arg2, &rusage);
3939 }
3940 }
3941 break;
3942 case TARGET_NR_gettimeofday:
3943 {
3944 struct timeval tv;
3945 ret = get_errno(gettimeofday(&tv, NULL));
3946 if (!is_error(ret)) {
3947 if (copy_to_user_timeval(arg1, &tv))
3948 goto efault;
3949 }
3950 }
3951 break;
3952 case TARGET_NR_settimeofday:
3953 {
3954 struct timeval tv;
3955 if (copy_from_user_timeval(&tv, arg1))
3956 goto efault;
3957 ret = get_errno(settimeofday(&tv, NULL));
3958 }
3959 break;
3960 #ifdef TARGET_NR_select
3961 case TARGET_NR_select:
3962 {
3963 struct target_sel_arg_struct *sel;
3964 abi_ulong inp, outp, exp, tvp;
3965 long nsel;
3966
3967 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
3968 goto efault;
3969 nsel = tswapl(sel->n);
3970 inp = tswapl(sel->inp);
3971 outp = tswapl(sel->outp);
3972 exp = tswapl(sel->exp);
3973 tvp = tswapl(sel->tvp);
3974 unlock_user_struct(sel, arg1, 0);
3975 ret = do_select(nsel, inp, outp, exp, tvp);
3976 }
3977 break;
3978 #endif
3979 case TARGET_NR_symlink:
3980 {
3981 void *p2;
3982 p = lock_user_string(arg1);
3983 p2 = lock_user_string(arg2);
3984 if (!p || !p2)
3985 ret = -TARGET_EFAULT;
3986 else
3987 ret = get_errno(symlink(p, p2));
3988 unlock_user(p2, arg2, 0);
3989 unlock_user(p, arg1, 0);
3990 }
3991 break;
3992 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
3993 case TARGET_NR_symlinkat:
3994 {
3995 void *p2;
3996 p = lock_user_string(arg1);
3997 p2 = lock_user_string(arg3);
3998 if (!p || !p2)
3999 ret = -TARGET_EFAULT;
4000 else
4001 ret = get_errno(sys_symlinkat(p, arg2, p2));
4002 unlock_user(p2, arg3, 0);
4003 unlock_user(p, arg1, 0);
4004 }
4005 break;
4006 #endif
4007 #ifdef TARGET_NR_oldlstat
4008 case TARGET_NR_oldlstat:
4009 goto unimplemented;
4010 #endif
4011 case TARGET_NR_readlink:
4012 {
4013 void *p2;
4014 p = lock_user_string(arg1);
4015 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
4016 if (!p || !p2)
4017 ret = -TARGET_EFAULT;
4018 else
4019 ret = get_errno(readlink(path(p), p2, arg3));
4020 unlock_user(p2, arg2, ret);
4021 unlock_user(p, arg1, 0);
4022 }
4023 break;
4024 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
4025 case TARGET_NR_readlinkat:
4026 {
4027 void *p2;
4028 p = lock_user_string(arg2);
4029 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
4030 if (!p || !p2)
4031 ret = -TARGET_EFAULT;
4032 else
4033 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
4034 unlock_user(p2, arg3, ret);
4035 unlock_user(p, arg2, 0);
4036 }
4037 break;
4038 #endif
4039 #ifdef TARGET_NR_uselib
4040 case TARGET_NR_uselib:
4041 goto unimplemented;
4042 #endif
4043 #ifdef TARGET_NR_swapon
4044 case TARGET_NR_swapon:
4045 if (!(p = lock_user_string(arg1)))
4046 goto efault;
4047 ret = get_errno(swapon(p, arg2));
4048 unlock_user(p, arg1, 0);
4049 break;
4050 #endif
4051 case TARGET_NR_reboot:
4052 goto unimplemented;
4053 #ifdef TARGET_NR_readdir
4054 case TARGET_NR_readdir:
4055 goto unimplemented;
4056 #endif
4057 #ifdef TARGET_NR_mmap
4058 case TARGET_NR_mmap:
4059 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS)
4060 {
4061 abi_ulong *v;
4062 abi_ulong v1, v2, v3, v4, v5, v6;
4063 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
4064 goto efault;
4065 v1 = tswapl(v[0]);
4066 v2 = tswapl(v[1]);
4067 v3 = tswapl(v[2]);
4068 v4 = tswapl(v[3]);
4069 v5 = tswapl(v[4]);
4070 v6 = tswapl(v[5]);
4071 unlock_user(v, arg1, 0);
4072 ret = get_errno(target_mmap(v1, v2, v3,
4073 target_to_host_bitmask(v4, mmap_flags_tbl),
4074 v5, v6));
4075 }
4076 #else
4077 ret = get_errno(target_mmap(arg1, arg2, arg3,
4078 target_to_host_bitmask(arg4, mmap_flags_tbl),
4079 arg5,
4080 arg6));
4081 #endif
4082 break;
4083 #endif
4084 #ifdef TARGET_NR_mmap2
4085 case TARGET_NR_mmap2:
4086 #if defined(TARGET_SPARC) || defined(TARGET_MIPS)
4087 #define MMAP_SHIFT 12
4088 #else
4089 #define MMAP_SHIFT TARGET_PAGE_BITS
4090 #endif
4091 ret = get_errno(target_mmap(arg1, arg2, arg3,
4092 target_to_host_bitmask(arg4, mmap_flags_tbl),
4093 arg5,
4094 arg6 << MMAP_SHIFT));
4095 break;
4096 #endif
4097 case TARGET_NR_munmap:
4098 ret = get_errno(target_munmap(arg1, arg2));
4099 break;
4100 case TARGET_NR_mprotect:
4101 ret = get_errno(target_mprotect(arg1, arg2, arg3));
4102 break;
4103 #ifdef TARGET_NR_mremap
4104 case TARGET_NR_mremap:
4105 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
4106 break;
4107 #endif
4108 /* ??? msync/mlock/munlock are broken for softmmu. */
4109 #ifdef TARGET_NR_msync
4110 case TARGET_NR_msync:
4111 ret = get_errno(msync(g2h(arg1), arg2, arg3));
4112 break;
4113 #endif
4114 #ifdef TARGET_NR_mlock
4115 case TARGET_NR_mlock:
4116 ret = get_errno(mlock(g2h(arg1), arg2));
4117 break;
4118 #endif
4119 #ifdef TARGET_NR_munlock
4120 case TARGET_NR_munlock:
4121 ret = get_errno(munlock(g2h(arg1), arg2));
4122 break;
4123 #endif
4124 #ifdef TARGET_NR_mlockall
4125 case TARGET_NR_mlockall:
4126 ret = get_errno(mlockall(arg1));
4127 break;
4128 #endif
4129 #ifdef TARGET_NR_munlockall
4130 case TARGET_NR_munlockall:
4131 ret = get_errno(munlockall());
4132 break;
4133 #endif
4134 case TARGET_NR_truncate:
4135 if (!(p = lock_user_string(arg1)))
4136 goto efault;
4137 ret = get_errno(truncate(p, arg2));
4138 unlock_user(p, arg1, 0);
4139 break;
4140 case TARGET_NR_ftruncate:
4141 ret = get_errno(ftruncate(arg1, arg2));
4142 break;
4143 case TARGET_NR_fchmod:
4144 ret = get_errno(fchmod(arg1, arg2));
4145 break;
4146 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
4147 case TARGET_NR_fchmodat:
4148 if (!(p = lock_user_string(arg2)))
4149 goto efault;
4150 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4));
4151 unlock_user(p, arg2, 0);
4152 break;
4153 #endif
4154 case TARGET_NR_getpriority:
4155 /* libc does special remapping of the return value of
4156 * sys_getpriority() so it's just easiest to call
4157 * sys_getpriority() directly rather than through libc. */
4158 ret = sys_getpriority(arg1, arg2);
4159 break;
4160 case TARGET_NR_setpriority:
4161 ret = get_errno(setpriority(arg1, arg2, arg3));
4162 break;
4163 #ifdef TARGET_NR_profil
4164 case TARGET_NR_profil:
4165 goto unimplemented;
4166 #endif
4167 case TARGET_NR_statfs:
4168 if (!(p = lock_user_string(arg1)))
4169 goto efault;
4170 ret = get_errno(statfs(path(p), &stfs));
4171 unlock_user(p, arg1, 0);
4172 convert_statfs:
4173 if (!is_error(ret)) {
4174 struct target_statfs *target_stfs;
4175
4176 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
4177 goto efault;
4178 __put_user(stfs.f_type, &target_stfs->f_type);
4179 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
4180 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
4181 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
4182 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
4183 __put_user(stfs.f_files, &target_stfs->f_files);
4184 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
4185 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
4186 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
4187 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
4188 unlock_user_struct(target_stfs, arg2, 1);
4189 }
4190 break;
4191 case TARGET_NR_fstatfs:
4192 ret = get_errno(fstatfs(arg1, &stfs));
4193 goto convert_statfs;
4194 #ifdef TARGET_NR_statfs64
4195 case TARGET_NR_statfs64:
4196 if (!(p = lock_user_string(arg1)))
4197 goto efault;
4198 ret = get_errno(statfs(path(p), &stfs));
4199 unlock_user(p, arg1, 0);
4200 convert_statfs64:
4201 if (!is_error(ret)) {
4202 struct target_statfs64 *target_stfs;
4203
4204 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
4205 goto efault;
4206 __put_user(stfs.f_type, &target_stfs->f_type);
4207 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
4208 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
4209 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
4210 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
4211 __put_user(stfs.f_files, &target_stfs->f_files);
4212 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
4213 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
4214 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
4215 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
4216 unlock_user_struct(target_stfs, arg3, 1);
4217 }
4218 break;
4219 case TARGET_NR_fstatfs64:
4220 ret = get_errno(fstatfs(arg1, &stfs));
4221 goto convert_statfs64;
4222 #endif
4223 #ifdef TARGET_NR_ioperm
4224 case TARGET_NR_ioperm:
4225 goto unimplemented;
4226 #endif
4227 #ifdef TARGET_NR_socketcall
4228 case TARGET_NR_socketcall:
4229 ret = do_socketcall(arg1, arg2);
4230 break;
4231 #endif
4232 #ifdef TARGET_NR_accept
4233 case TARGET_NR_accept:
4234 ret = do_accept(arg1, arg2, arg3);
4235 break;
4236 #endif
4237 #ifdef TARGET_NR_bind
4238 case TARGET_NR_bind:
4239 ret = do_bind(arg1, arg2, arg3);
4240 break;
4241 #endif
4242 #ifdef TARGET_NR_connect
4243 case TARGET_NR_connect:
4244 ret = do_connect(arg1, arg2, arg3);
4245 break;
4246 #endif
4247 #ifdef TARGET_NR_getpeername
4248 case TARGET_NR_getpeername:
4249 ret = do_getpeername(arg1, arg2, arg3);
4250 break;
4251 #endif
4252 #ifdef TARGET_NR_getsockname
4253 case TARGET_NR_getsockname:
4254 ret = do_getsockname(arg1, arg2, arg3);
4255 break;
4256 #endif
4257 #ifdef TARGET_NR_getsockopt
4258 case TARGET_NR_getsockopt:
4259 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
4260 break;
4261 #endif
4262 #ifdef TARGET_NR_listen
4263 case TARGET_NR_listen:
4264 ret = get_errno(listen(arg1, arg2));
4265 break;
4266 #endif
4267 #ifdef TARGET_NR_recv
4268 case TARGET_NR_recv:
4269 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
4270 break;
4271 #endif
4272 #ifdef TARGET_NR_recvfrom
4273 case TARGET_NR_recvfrom:
4274 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
4275 break;
4276 #endif
4277 #ifdef TARGET_NR_recvmsg
4278 case TARGET_NR_recvmsg:
4279 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
4280 break;
4281 #endif
4282 #ifdef TARGET_NR_send
4283 case TARGET_NR_send:
4284 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
4285 break;
4286 #endif
4287 #ifdef TARGET_NR_sendmsg
4288 case TARGET_NR_sendmsg:
4289 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
4290 break;
4291 #endif
4292 #ifdef TARGET_NR_sendto
4293 case TARGET_NR_sendto:
4294 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
4295 break;
4296 #endif
4297 #ifdef TARGET_NR_shutdown
4298 case TARGET_NR_shutdown:
4299 ret = get_errno(shutdown(arg1, arg2));
4300 break;
4301 #endif
4302 #ifdef TARGET_NR_socket
4303 case TARGET_NR_socket:
4304 ret = do_socket(arg1, arg2, arg3);
4305 break;
4306 #endif
4307 #ifdef TARGET_NR_socketpair
4308 case TARGET_NR_socketpair:
4309 ret = do_socketpair(arg1, arg2, arg3, arg4);
4310 break;
4311 #endif
4312 #ifdef TARGET_NR_setsockopt
4313 case TARGET_NR_setsockopt:
4314 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
4315 break;
4316 #endif
4317
4318 case TARGET_NR_syslog:
4319 if (!(p = lock_user_string(arg2)))
4320 goto efault;
4321 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
4322 unlock_user(p, arg2, 0);
4323 break;
4324
4325 case TARGET_NR_setitimer:
4326 {
4327 struct itimerval value, ovalue, *pvalue;
4328
4329 if (arg2) {
4330 pvalue = &value;
4331 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
4332 || copy_from_user_timeval(&pvalue->it_value,
4333 arg2 + sizeof(struct target_timeval)))
4334 goto efault;
4335 } else {
4336 pvalue = NULL;
4337 }
4338 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
4339 if (!is_error(ret) && arg3) {
4340 if (copy_to_user_timeval(arg3,
4341 &ovalue.it_interval)
4342 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
4343 &ovalue.it_value))
4344 goto efault;
4345 }
4346 }
4347 break;
4348 case TARGET_NR_getitimer:
4349 {
4350 struct itimerval value;
4351
4352 ret = get_errno(getitimer(arg1, &value));
4353 if (!is_error(ret) && arg2) {
4354 if (copy_to_user_timeval(arg2,
4355 &value.it_interval)
4356 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
4357 &value.it_value))
4358 goto efault;
4359 }
4360 }
4361 break;
4362 case TARGET_NR_stat:
4363 if (!(p = lock_user_string(arg1)))
4364 goto efault;
4365 ret = get_errno(stat(path(p), &st));
4366 unlock_user(p, arg1, 0);
4367 goto do_stat;
4368 case TARGET_NR_lstat:
4369 if (!(p = lock_user_string(arg1)))
4370 goto efault;
4371 ret = get_errno(lstat(path(p), &st));
4372 unlock_user(p, arg1, 0);
4373 goto do_stat;
4374 case TARGET_NR_fstat:
4375 {
4376 ret = get_errno(fstat(arg1, &st));
4377 do_stat:
4378 if (!is_error(ret)) {
4379 struct target_stat *target_st;
4380
4381 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
4382 goto efault;
4383 __put_user(st.st_dev, &target_st->st_dev);
4384 __put_user(st.st_ino, &target_st->st_ino);
4385 __put_user(st.st_mode, &target_st->st_mode);
4386 __put_user(st.st_uid, &target_st->st_uid);
4387 __put_user(st.st_gid, &target_st->st_gid);
4388 __put_user(st.st_nlink, &target_st->st_nlink);
4389 __put_user(st.st_rdev, &target_st->st_rdev);
4390 __put_user(st.st_size, &target_st->st_size);
4391 __put_user(st.st_blksize, &target_st->st_blksize);
4392 __put_user(st.st_blocks, &target_st->st_blocks);
4393 __put_user(st.st_atime, &target_st->target_st_atime);
4394 __put_user(st.st_mtime, &target_st->target_st_mtime);
4395 __put_user(st.st_ctime, &target_st->target_st_ctime);
4396 unlock_user_struct(target_st, arg2, 1);
4397 }
4398 }
4399 break;
4400 #ifdef TARGET_NR_olduname
4401 case TARGET_NR_olduname:
4402 goto unimplemented;
4403 #endif
4404 #ifdef TARGET_NR_iopl
4405 case TARGET_NR_iopl:
4406 goto unimplemented;
4407 #endif
4408 case TARGET_NR_vhangup:
4409 ret = get_errno(vhangup());
4410 break;
4411 #ifdef TARGET_NR_idle
4412 case TARGET_NR_idle:
4413 goto unimplemented;
4414 #endif
4415 #ifdef TARGET_NR_syscall
4416 case TARGET_NR_syscall:
4417 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
4418 break;
4419 #endif
4420 case TARGET_NR_wait4:
4421 {
4422 int status;
4423 abi_long status_ptr = arg2;
4424 struct rusage rusage, *rusage_ptr;
4425 abi_ulong target_rusage = arg4;
4426 if (target_rusage)
4427 rusage_ptr = &rusage;
4428 else
4429 rusage_ptr = NULL;
4430 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
4431 if (!is_error(ret)) {
4432 if (status_ptr) {
4433 if (put_user_s32(status, status_ptr))
4434 goto efault;
4435 }
4436 if (target_rusage)
4437 host_to_target_rusage(target_rusage, &rusage);
4438 }
4439 }
4440 break;
4441 #ifdef TARGET_NR_swapoff
4442 case TARGET_NR_swapoff:
4443 if (!(p = lock_user_string(arg1)))
4444 goto efault;
4445 ret = get_errno(swapoff(p));
4446 unlock_user(p, arg1, 0);
4447 break;
4448 #endif
4449 case TARGET_NR_sysinfo:
4450 {
4451 struct target_sysinfo *target_value;
4452 struct sysinfo value;
4453 ret = get_errno(sysinfo(&value));
4454 if (!is_error(ret) && arg1)
4455 {
4456 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
4457 goto efault;
4458 __put_user(value.uptime, &target_value->uptime);
4459 __put_user(value.loads[0], &target_value->loads[0]);
4460 __put_user(value.loads[1], &target_value->loads[1]);
4461 __put_user(value.loads[2], &target_value->loads[2]);
4462 __put_user(value.totalram, &target_value->totalram);
4463 __put_user(value.freeram, &target_value->freeram);
4464 __put_user(value.sharedram, &target_value->sharedram);
4465 __put_user(value.bufferram, &target_value->bufferram);
4466 __put_user(value.totalswap, &target_value->totalswap);
4467 __put_user(value.freeswap, &target_value->freeswap);
4468 __put_user(value.procs, &target_value->procs);
4469 __put_user(value.totalhigh, &target_value->totalhigh);
4470 __put_user(value.freehigh, &target_value->freehigh);
4471 __put_user(value.mem_unit, &target_value->mem_unit);
4472 unlock_user_struct(target_value, arg1, 1);
4473 }
4474 }
4475 break;
4476 #ifdef TARGET_NR_ipc
4477 case TARGET_NR_ipc:
4478 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
4479 break;
4480 #endif
4481 case TARGET_NR_fsync:
4482 ret = get_errno(fsync(arg1));
4483 break;
4484 case TARGET_NR_clone:
4485 ret = get_errno(do_fork(cpu_env, arg1, arg2));
4486 break;
4487 #ifdef __NR_exit_group
4488 /* new thread calls */
4489 case TARGET_NR_exit_group:
4490 gdb_exit(cpu_env, arg1);
4491 ret = get_errno(exit_group(arg1));
4492 break;
4493 #endif
4494 case TARGET_NR_setdomainname:
4495 if (!(p = lock_user_string(arg1)))
4496 goto efault;
4497 ret = get_errno(setdomainname(p, arg2));
4498 unlock_user(p, arg1, 0);
4499 break;
4500 case TARGET_NR_uname:
4501 /* no need to transcode because we use the linux syscall */
4502 {
4503 struct new_utsname * buf;
4504
4505 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
4506 goto efault;
4507 ret = get_errno(sys_uname(buf));
4508 if (!is_error(ret)) {
4509 /* Overrite the native machine name with whatever is being
4510 emulated. */
4511 strcpy (buf->machine, UNAME_MACHINE);
4512 /* Allow the user to override the reported release. */
4513 if (qemu_uname_release && *qemu_uname_release)
4514 strcpy (buf->release, qemu_uname_release);
4515 }
4516 unlock_user_struct(buf, arg1, 1);
4517 }
4518 break;
4519 #ifdef TARGET_I386
4520 case TARGET_NR_modify_ldt:
4521 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
4522 break;
4523 #if !defined(TARGET_X86_64)
4524 case TARGET_NR_vm86old:
4525 goto unimplemented;
4526 case TARGET_NR_vm86:
4527 ret = do_vm86(cpu_env, arg1, arg2);
4528 break;
4529 #endif
4530 #endif
4531 case TARGET_NR_adjtimex:
4532 goto unimplemented;
4533 #ifdef TARGET_NR_create_module
4534 case TARGET_NR_create_module:
4535 #endif
4536 case TARGET_NR_init_module:
4537 case TARGET_NR_delete_module:
4538 #ifdef TARGET_NR_get_kernel_syms
4539 case TARGET_NR_get_kernel_syms:
4540 #endif
4541 goto unimplemented;
4542 case TARGET_NR_quotactl:
4543 goto unimplemented;
4544 case TARGET_NR_getpgid:
4545 ret = get_errno(getpgid(arg1));
4546 break;
4547 case TARGET_NR_fchdir:
4548 ret = get_errno(fchdir(arg1));
4549 break;
4550 #ifdef TARGET_NR_bdflush /* not on x86_64 */
4551 case TARGET_NR_bdflush:
4552 goto unimplemented;
4553 #endif
4554 #ifdef TARGET_NR_sysfs
4555 case TARGET_NR_sysfs:
4556 goto unimplemented;
4557 #endif
4558 case TARGET_NR_personality:
4559 ret = get_errno(personality(arg1));
4560 break;
4561 #ifdef TARGET_NR_afs_syscall
4562 case TARGET_NR_afs_syscall:
4563 goto unimplemented;
4564 #endif
4565 #ifdef TARGET_NR__llseek /* Not on alpha */
4566 case TARGET_NR__llseek:
4567 {
4568 #if defined (__x86_64__)
4569 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
4570 if (put_user_s64(ret, arg4))
4571 goto efault;
4572 #else
4573 int64_t res;
4574 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4575 if (put_user_s64(res, arg4))
4576 goto efault;
4577 #endif
4578 }
4579 break;
4580 #endif
4581 case TARGET_NR_getdents:
4582 #if TARGET_ABI_BITS != 32
4583 goto unimplemented;
4584 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4585 {
4586 struct target_dirent *target_dirp;
4587 struct dirent *dirp;
4588 abi_long count = arg3;
4589
4590 dirp = malloc(count);
4591 if (!dirp) {
4592 ret = -TARGET_ENOMEM;
4593 goto fail;
4594 }
4595
4596 ret = get_errno(sys_getdents(arg1, dirp, count));
4597 if (!is_error(ret)) {
4598 struct dirent *de;
4599 struct target_dirent *tde;
4600 int len = ret;
4601 int reclen, treclen;
4602 int count1, tnamelen;
4603
4604 count1 = 0;
4605 de = dirp;
4606 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
4607 goto efault;
4608 tde = target_dirp;
4609 while (len > 0) {
4610 reclen = de->d_reclen;
4611 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
4612 tde->d_reclen = tswap16(treclen);
4613 tde->d_ino = tswapl(de->d_ino);
4614 tde->d_off = tswapl(de->d_off);
4615 tnamelen = treclen - (2 * sizeof(abi_long) + 2);
4616 if (tnamelen > 256)
4617 tnamelen = 256;
4618 /* XXX: may not be correct */
4619 strncpy(tde->d_name, de->d_name, tnamelen);
4620 de = (struct dirent *)((char *)de + reclen);
4621 len -= reclen;
4622 tde = (struct target_dirent *)((char *)tde + treclen);
4623 count1 += treclen;
4624 }
4625 ret = count1;
4626 unlock_user(target_dirp, arg2, ret);
4627 }
4628 free(dirp);
4629 }
4630 #else
4631 {
4632 struct dirent *dirp;
4633 abi_long count = arg3;
4634
4635 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
4636 goto efault;
4637 ret = get_errno(sys_getdents(arg1, dirp, count));
4638 if (!is_error(ret)) {
4639 struct dirent *de;
4640 int len = ret;
4641 int reclen;
4642 de = dirp;
4643 while (len > 0) {
4644 reclen = de->d_reclen;
4645 if (reclen > len)
4646 break;
4647 de->d_reclen = tswap16(reclen);
4648 tswapls(&de->d_ino);
4649 tswapls(&de->d_off);
4650 de = (struct dirent *)((char *)de + reclen);
4651 len -= reclen;
4652 }
4653 }
4654 unlock_user(dirp, arg2, ret);
4655 }
4656 #endif
4657 break;
4658 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
4659 case TARGET_NR_getdents64:
4660 {
4661 struct dirent64 *dirp;
4662 abi_long count = arg3;
4663 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
4664 goto efault;
4665 ret = get_errno(sys_getdents64(arg1, dirp, count));
4666 if (!is_error(ret)) {
4667 struct dirent64 *de;
4668 int len = ret;
4669 int reclen;
4670 de = dirp;
4671 while (len > 0) {
4672 reclen = de->d_reclen;
4673 if (reclen > len)
4674 break;
4675 de->d_reclen = tswap16(reclen);
4676 tswap64s((uint64_t *)&de->d_ino);
4677 tswap64s((uint64_t *)&de->d_off);
4678 de = (struct dirent64 *)((char *)de + reclen);
4679 len -= reclen;
4680 }
4681 }
4682 unlock_user(dirp, arg2, ret);
4683 }
4684 break;
4685 #endif /* TARGET_NR_getdents64 */
4686 #ifdef TARGET_NR__newselect
4687 case TARGET_NR__newselect:
4688 ret = do_select(arg1, arg2, arg3, arg4, arg5);
4689 break;
4690 #endif
4691 #ifdef TARGET_NR_poll
4692 case TARGET_NR_poll:
4693 {
4694 struct target_pollfd *target_pfd;
4695 unsigned int nfds = arg2;
4696 int timeout = arg3;
4697 struct pollfd *pfd;
4698 unsigned int i;
4699
4700 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
4701 if (!target_pfd)
4702 goto efault;
4703 pfd = alloca(sizeof(struct pollfd) * nfds);
4704 for(i = 0; i < nfds; i++) {
4705 pfd[i].fd = tswap32(target_pfd[i].fd);
4706 pfd[i].events = tswap16(target_pfd[i].events);
4707 }
4708 ret = get_errno(poll(pfd, nfds, timeout));
4709 if (!is_error(ret)) {
4710 for(i = 0; i < nfds; i++) {
4711 target_pfd[i].revents = tswap16(pfd[i].revents);
4712 }
4713 ret += nfds * (sizeof(struct target_pollfd)
4714 - sizeof(struct pollfd));
4715 }
4716 unlock_user(target_pfd, arg1, ret);
4717 }
4718 break;
4719 #endif
4720 case TARGET_NR_flock:
4721 /* NOTE: the flock constant seems to be the same for every
4722 Linux platform */
4723 ret = get_errno(flock(arg1, arg2));
4724 break;
4725 case TARGET_NR_readv:
4726 {
4727 int count = arg3;
4728 struct iovec *vec;
4729
4730 vec = alloca(count * sizeof(struct iovec));
4731 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
4732 goto efault;
4733 ret = get_errno(readv(arg1, vec, count));
4734 unlock_iovec(vec, arg2, count, 1);
4735 }
4736 break;
4737 case TARGET_NR_writev:
4738 {
4739 int count = arg3;
4740 struct iovec *vec;
4741
4742 vec = alloca(count * sizeof(struct iovec));
4743 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
4744 goto efault;
4745 ret = get_errno(writev(arg1, vec, count));
4746 unlock_iovec(vec, arg2, count, 0);
4747 }
4748 break;
4749 case TARGET_NR_getsid:
4750 ret = get_errno(getsid(arg1));
4751 break;
4752 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
4753 case TARGET_NR_fdatasync:
4754 ret = get_errno(fdatasync(arg1));
4755 break;
4756 #endif
4757 case TARGET_NR__sysctl:
4758 /* We don't implement this, but ENOTDIR is always a safe
4759 return value. */
4760 ret = -TARGET_ENOTDIR;
4761 break;
4762 case TARGET_NR_sched_setparam:
4763 {
4764 struct sched_param *target_schp;
4765 struct sched_param schp;
4766
4767 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
4768 goto efault;
4769 schp.sched_priority = tswap32(target_schp->sched_priority);
4770 unlock_user_struct(target_schp, arg2, 0);
4771 ret = get_errno(sched_setparam(arg1, &schp));
4772 }
4773 break;
4774 case TARGET_NR_sched_getparam:
4775 {
4776 struct sched_param *target_schp;
4777 struct sched_param schp;
4778 ret = get_errno(sched_getparam(arg1, &schp));
4779 if (!is_error(ret)) {
4780 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
4781 goto efault;
4782 target_schp->sched_priority = tswap32(schp.sched_priority);
4783 unlock_user_struct(target_schp, arg2, 1);
4784 }
4785 }
4786 break;
4787 case TARGET_NR_sched_setscheduler:
4788 {
4789 struct sched_param *target_schp;
4790 struct sched_param schp;
4791 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
4792 goto efault;
4793 schp.sched_priority = tswap32(target_schp->sched_priority);
4794 unlock_user_struct(target_schp, arg3, 0);
4795 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
4796 }
4797 break;
4798 case TARGET_NR_sched_getscheduler:
4799 ret = get_errno(sched_getscheduler(arg1));
4800 break;
4801 case TARGET_NR_sched_yield:
4802 ret = get_errno(sched_yield());
4803 break;
4804 case TARGET_NR_sched_get_priority_max:
4805 ret = get_errno(sched_get_priority_max(arg1));
4806 break;
4807 case TARGET_NR_sched_get_priority_min:
4808 ret = get_errno(sched_get_priority_min(arg1));
4809 break;
4810 case TARGET_NR_sched_rr_get_interval:
4811 {
4812 struct timespec ts;
4813 ret = get_errno(sched_rr_get_interval(arg1, &ts));
4814 if (!is_error(ret)) {
4815 host_to_target_timespec(arg2, &ts);
4816 }
4817 }
4818 break;
4819 case TARGET_NR_nanosleep:
4820 {
4821 struct timespec req, rem;
4822 target_to_host_timespec(&req, arg1);
4823 ret = get_errno(nanosleep(&req, &rem));
4824 if (is_error(ret) && arg2) {
4825 host_to_target_timespec(arg2, &rem);
4826 }
4827 }
4828 break;
4829 #ifdef TARGET_NR_query_module
4830 case TARGET_NR_query_module:
4831 goto unimplemented;
4832 #endif
4833 #ifdef TARGET_NR_nfsservctl
4834 case TARGET_NR_nfsservctl:
4835 goto unimplemented;
4836 #endif
4837 case TARGET_NR_prctl:
4838 switch (arg1)
4839 {
4840 case PR_GET_PDEATHSIG:
4841 {
4842 int deathsig;
4843 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
4844 if (!is_error(ret) && arg2
4845 && put_user_ual(deathsig, arg2))
4846 goto efault;
4847 }
4848 break;
4849 default:
4850 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
4851 break;
4852 }
4853 break;
4854 #ifdef TARGET_NR_arch_prctl
4855 case TARGET_NR_arch_prctl:
4856 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
4857 ret = do_arch_prctl(cpu_env, arg1, arg2);
4858 break;
4859 #else
4860 goto unimplemented;
4861 #endif
4862 #endif
4863 #ifdef TARGET_NR_pread
4864 case TARGET_NR_pread:
4865 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4866 goto efault;
4867 ret = get_errno(pread(arg1, p, arg3, arg4));
4868 unlock_user(p, arg2, ret);
4869 break;
4870 case TARGET_NR_pwrite:
4871 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4872 goto efault;
4873 ret = get_errno(pwrite(arg1, p, arg3, arg4));
4874 unlock_user(p, arg2, 0);
4875 break;
4876 #endif
4877 case TARGET_NR_getcwd:
4878 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
4879 goto efault;
4880 ret = get_errno(sys_getcwd1(p, arg2));
4881 unlock_user(p, arg1, ret);
4882 break;
4883 case TARGET_NR_capget:
4884 goto unimplemented;
4885 case TARGET_NR_capset:
4886 goto unimplemented;
4887 case TARGET_NR_sigaltstack:
4888 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
4889 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA)
4890 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
4891 break;
4892 #else
4893 goto unimplemented;
4894 #endif
4895 case TARGET_NR_sendfile:
4896 goto unimplemented;
4897 #ifdef TARGET_NR_getpmsg
4898 case TARGET_NR_getpmsg:
4899 goto unimplemented;
4900 #endif
4901 #ifdef TARGET_NR_putpmsg
4902 case TARGET_NR_putpmsg:
4903 goto unimplemented;
4904 #endif
4905 #ifdef TARGET_NR_vfork
4906 case TARGET_NR_vfork:
4907 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
4908 break;
4909 #endif
4910 #ifdef TARGET_NR_ugetrlimit
4911 case TARGET_NR_ugetrlimit:
4912 {
4913 struct rlimit rlim;
4914 ret = get_errno(getrlimit(arg1, &rlim));
4915 if (!is_error(ret)) {
4916 struct target_rlimit *target_rlim;
4917 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
4918 goto efault;
4919 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
4920 target_rlim->rlim_max = tswapl(rlim.rlim_max);
4921 unlock_user_struct(target_rlim, arg2, 1);
4922 }
4923 break;
4924 }
4925 #endif
4926 #ifdef TARGET_NR_truncate64
4927 case TARGET_NR_truncate64:
4928 if (!(p = lock_user_string(arg1)))
4929 goto efault;
4930 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
4931 unlock_user(p, arg1, 0);
4932 break;
4933 #endif
4934 #ifdef TARGET_NR_ftruncate64
4935 case TARGET_NR_ftruncate64:
4936 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
4937 break;
4938 #endif
4939 #ifdef TARGET_NR_stat64
4940 case TARGET_NR_stat64:
4941 if (!(p = lock_user_string(arg1)))
4942 goto efault;
4943 ret = get_errno(stat(path(p), &st));
4944 unlock_user(p, arg1, 0);
4945 goto do_stat64;
4946 #endif
4947 #ifdef TARGET_NR_lstat64
4948 case TARGET_NR_lstat64:
4949 if (!(p = lock_user_string(arg1)))
4950 goto efault;
4951 ret = get_errno(lstat(path(p), &st));
4952 unlock_user(p, arg1, 0);
4953 goto do_stat64;
4954 #endif
4955 #ifdef TARGET_NR_fstat64
4956 case TARGET_NR_fstat64:
4957 {
4958 ret = get_errno(fstat(arg1, &st));
4959 do_stat64:
4960 if (!is_error(ret)) {
4961 #ifdef TARGET_ARM
4962 if (((CPUARMState *)cpu_env)->eabi) {
4963 struct target_eabi_stat64 *target_st;
4964
4965 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
4966 goto efault;
4967 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4968 __put_user(st.st_dev, &target_st->st_dev);
4969 __put_user(st.st_ino, &target_st->st_ino);
4970 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4971 __put_user(st.st_ino, &target_st->__st_ino);
4972 #endif
4973 __put_user(st.st_mode, &target_st->st_mode);
4974 __put_user(st.st_nlink, &target_st->st_nlink);
4975 __put_user(st.st_uid, &target_st->st_uid);
4976 __put_user(st.st_gid, &target_st->st_gid);
4977 __put_user(st.st_rdev, &target_st->st_rdev);
4978 __put_user(st.st_size, &target_st->st_size);
4979 __put_user(st.st_blksize, &target_st->st_blksize);
4980 __put_user(st.st_blocks, &target_st->st_blocks);
4981 __put_user(st.st_atime, &target_st->target_st_atime);
4982 __put_user(st.st_mtime, &target_st->target_st_mtime);
4983 __put_user(st.st_ctime, &target_st->target_st_ctime);
4984 unlock_user_struct(target_st, arg2, 1);
4985 } else
4986 #endif
4987 {
4988 struct target_stat64 *target_st;
4989
4990 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
4991 goto efault;
4992 memset(target_st, 0, sizeof(struct target_stat64));
4993 __put_user(st.st_dev, &target_st->st_dev);
4994 __put_user(st.st_ino, &target_st->st_ino);
4995 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4996 __put_user(st.st_ino, &target_st->__st_ino);
4997 #endif
4998 __put_user(st.st_mode, &target_st->st_mode);
4999 __put_user(st.st_nlink, &target_st->st_nlink);
5000 __put_user(st.st_uid, &target_st->st_uid);
5001 __put_user(st.st_gid, &target_st->st_gid);
5002 __put_user(st.st_rdev, &target_st->st_rdev);
5003 /* XXX: better use of kernel struct */
5004 __put_user(st.st_size, &target_st->st_size);
5005 __put_user(st.st_blksize, &target_st->st_blksize);
5006 __put_user(st.st_blocks, &target_st->st_blocks);
5007 __put_user(st.st_atime, &target_st->target_st_atime);
5008 __put_user(st.st_mtime, &target_st->target_st_mtime);
5009 __put_user(st.st_ctime, &target_st->target_st_ctime);
5010 unlock_user_struct(target_st, arg2, 1);
5011 }
5012 }
5013 }
5014 break;
5015 #endif
5016 #ifdef USE_UID16
5017 case TARGET_NR_lchown:
5018 if (!(p = lock_user_string(arg1)))
5019 goto efault;
5020 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
5021 unlock_user(p, arg1, 0);
5022 break;
5023 case TARGET_NR_getuid:
5024 ret = get_errno(high2lowuid(getuid()));
5025 break;
5026 case TARGET_NR_getgid:
5027 ret = get_errno(high2lowgid(getgid()));
5028 break;
5029 case TARGET_NR_geteuid:
5030 ret = get_errno(high2lowuid(geteuid()));
5031 break;
5032 case TARGET_NR_getegid:
5033 ret = get_errno(high2lowgid(getegid()));
5034 break;
5035 case TARGET_NR_setreuid:
5036 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
5037 break;
5038 case TARGET_NR_setregid:
5039 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
5040 break;
5041 case TARGET_NR_getgroups:
5042 {
5043 int gidsetsize = arg1;
5044 uint16_t *target_grouplist;
5045 gid_t *grouplist;
5046 int i;
5047
5048 grouplist = alloca(gidsetsize * sizeof(gid_t));
5049 ret = get_errno(getgroups(gidsetsize, grouplist));
5050 if (!is_error(ret)) {
5051 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
5052 if (!target_grouplist)
5053 goto efault;
5054 for(i = 0;i < gidsetsize; i++)
5055 target_grouplist[i] = tswap16(grouplist[i]);
5056 unlock_user(target_grouplist, arg2, gidsetsize * 2);
5057 }
5058 }
5059 break;
5060 case TARGET_NR_setgroups:
5061 {
5062 int gidsetsize = arg1;
5063 uint16_t *target_grouplist;
5064 gid_t *grouplist;
5065 int i;
5066
5067 grouplist = alloca(gidsetsize * sizeof(gid_t));
5068 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
5069 if (!target_grouplist) {
5070 ret = -TARGET_EFAULT;
5071 goto fail;
5072 }
5073 for(i = 0;i < gidsetsize; i++)
5074 grouplist[i] = tswap16(target_grouplist[i]);
5075 unlock_user(target_grouplist, arg2, 0);
5076 ret = get_errno(setgroups(gidsetsize, grouplist));
5077 }
5078 break;
5079 case TARGET_NR_fchown:
5080 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
5081 break;
5082 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
5083 case TARGET_NR_fchownat:
5084 if (!(p = lock_user_string(arg2)))
5085 goto efault;
5086 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
5087 unlock_user(p, arg2, 0);
5088 break;
5089 #endif
5090 #ifdef TARGET_NR_setresuid
5091 case TARGET_NR_setresuid:
5092 ret = get_errno(setresuid(low2highuid(arg1),
5093 low2highuid(arg2),
5094 low2highuid(arg3)));
5095 break;
5096 #endif
5097 #ifdef TARGET_NR_getresuid
5098 case TARGET_NR_getresuid:
5099 {
5100 uid_t ruid, euid, suid;
5101 ret = get_errno(getresuid(&ruid, &euid, &suid));
5102 if (!is_error(ret)) {
5103 if (put_user_u16(high2lowuid(ruid), arg1)
5104 || put_user_u16(high2lowuid(euid), arg2)
5105 || put_user_u16(high2lowuid(suid), arg3))
5106 goto efault;
5107 }
5108 }
5109 break;
5110 #endif
5111 #ifdef TARGET_NR_getresgid
5112 case TARGET_NR_setresgid:
5113 ret = get_errno(setresgid(low2highgid(arg1),
5114 low2highgid(arg2),
5115 low2highgid(arg3)));
5116 break;
5117 #endif
5118 #ifdef TARGET_NR_getresgid
5119 case TARGET_NR_getresgid:
5120 {
5121 gid_t rgid, egid, sgid;
5122 ret = get_errno(getresgid(&rgid, &egid, &sgid));
5123 if (!is_error(ret)) {
5124 if (put_user_u16(high2lowgid(rgid), arg1)
5125 || put_user_u16(high2lowgid(egid), arg2)
5126 || put_user_u16(high2lowgid(sgid), arg3))
5127 goto efault;
5128 }
5129 }
5130 break;
5131 #endif
5132 case TARGET_NR_chown:
5133 if (!(p = lock_user_string(arg1)))
5134 goto efault;
5135 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
5136 unlock_user(p, arg1, 0);
5137 break;
5138 case TARGET_NR_setuid:
5139 ret = get_errno(setuid(low2highuid(arg1)));
5140 break;
5141 case TARGET_NR_setgid:
5142 ret = get_errno(setgid(low2highgid(arg1)));
5143 break;
5144 case TARGET_NR_setfsuid:
5145 ret = get_errno(setfsuid(arg1));
5146 break;
5147 case TARGET_NR_setfsgid:
5148 ret = get_errno(setfsgid(arg1));
5149 break;
5150 #endif /* USE_UID16 */
5151
5152 #ifdef TARGET_NR_lchown32
5153 case TARGET_NR_lchown32:
5154 if (!(p = lock_user_string(arg1)))
5155 goto efault;
5156 ret = get_errno(lchown(p, arg2, arg3));
5157 unlock_user(p, arg1, 0);
5158 break;
5159 #endif
5160 #ifdef TARGET_NR_getuid32
5161 case TARGET_NR_getuid32:
5162 ret = get_errno(getuid());
5163 break;
5164 #endif
5165 #ifdef TARGET_NR_getgid32
5166 case TARGET_NR_getgid32:
5167 ret = get_errno(getgid());
5168 break;
5169 #endif
5170 #ifdef TARGET_NR_geteuid32
5171 case TARGET_NR_geteuid32:
5172 ret = get_errno(geteuid());
5173 break;
5174 #endif
5175 #ifdef TARGET_NR_getegid32
5176 case TARGET_NR_getegid32:
5177 ret = get_errno(getegid());
5178 break;
5179 #endif
5180 #ifdef TARGET_NR_setreuid32
5181 case TARGET_NR_setreuid32:
5182 ret = get_errno(setreuid(arg1, arg2));
5183 break;
5184 #endif
5185 #ifdef TARGET_NR_setregid32
5186 case TARGET_NR_setregid32:
5187 ret = get_errno(setregid(arg1, arg2));
5188 break;
5189 #endif
5190 #ifdef TARGET_NR_getgroups32
5191 case TARGET_NR_getgroups32:
5192 {
5193 int gidsetsize = arg1;
5194 uint32_t *target_grouplist;
5195 gid_t *grouplist;
5196 int i;
5197
5198 grouplist = alloca(gidsetsize * sizeof(gid_t));
5199 ret = get_errno(getgroups(gidsetsize, grouplist));
5200 if (!is_error(ret)) {
5201 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
5202 if (!target_grouplist) {
5203 ret = -TARGET_EFAULT;
5204 goto fail;
5205 }
5206 for(i = 0;i < gidsetsize; i++)
5207 target_grouplist[i] = tswap32(grouplist[i]);
5208 unlock_user(target_grouplist, arg2, gidsetsize * 4);
5209 }
5210 }
5211 break;
5212 #endif
5213 #ifdef TARGET_NR_setgroups32
5214 case TARGET_NR_setgroups32:
5215 {
5216 int gidsetsize = arg1;
5217 uint32_t *target_grouplist;
5218 gid_t *grouplist;
5219 int i;
5220
5221 grouplist = alloca(gidsetsize * sizeof(gid_t));
5222 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
5223 if (!target_grouplist) {
5224 ret = -TARGET_EFAULT;
5225 goto fail;
5226 }
5227 for(i = 0;i < gidsetsize; i++)
5228 grouplist[i] = tswap32(target_grouplist[i]);
5229 unlock_user(target_grouplist, arg2, 0);
5230 ret = get_errno(setgroups(gidsetsize, grouplist));
5231 }
5232 break;
5233 #endif
5234 #ifdef TARGET_NR_fchown32
5235 case TARGET_NR_fchown32:
5236 ret = get_errno(fchown(arg1, arg2, arg3));
5237 break;
5238 #endif
5239 #ifdef TARGET_NR_setresuid32
5240 case TARGET_NR_setresuid32:
5241 ret = get_errno(setresuid(arg1, arg2, arg3));
5242 break;
5243 #endif
5244 #ifdef TARGET_NR_getresuid32
5245 case TARGET_NR_getresuid32:
5246 {
5247 uid_t ruid, euid, suid;
5248 ret = get_errno(getresuid(&ruid, &euid, &suid));
5249 if (!is_error(ret)) {
5250 if (put_user_u32(ruid, arg1)
5251 || put_user_u32(euid, arg2)
5252 || put_user_u32(suid, arg3))
5253 goto efault;
5254 }
5255 }
5256 break;
5257 #endif
5258 #ifdef TARGET_NR_setresgid32
5259 case TARGET_NR_setresgid32:
5260 ret = get_errno(setresgid(arg1, arg2, arg3));
5261 break;
5262 #endif
5263 #ifdef TARGET_NR_getresgid32
5264 case TARGET_NR_getresgid32:
5265 {
5266 gid_t rgid, egid, sgid;
5267 ret = get_errno(getresgid(&rgid, &egid, &sgid));
5268 if (!is_error(ret)) {
5269 if (put_user_u32(rgid, arg1)
5270 || put_user_u32(egid, arg2)
5271 || put_user_u32(sgid, arg3))
5272 goto efault;
5273 }
5274 }
5275 break;
5276 #endif
5277 #ifdef TARGET_NR_chown32
5278 case TARGET_NR_chown32:
5279 if (!(p = lock_user_string(arg1)))
5280 goto efault;
5281 ret = get_errno(chown(p, arg2, arg3));
5282 unlock_user(p, arg1, 0);
5283 break;
5284 #endif
5285 #ifdef TARGET_NR_setuid32
5286 case TARGET_NR_setuid32:
5287 ret = get_errno(setuid(arg1));
5288 break;
5289 #endif
5290 #ifdef TARGET_NR_setgid32
5291 case TARGET_NR_setgid32:
5292 ret = get_errno(setgid(arg1));
5293 break;
5294 #endif
5295 #ifdef TARGET_NR_setfsuid32
5296 case TARGET_NR_setfsuid32:
5297 ret = get_errno(setfsuid(arg1));
5298 break;
5299 #endif
5300 #ifdef TARGET_NR_setfsgid32
5301 case TARGET_NR_setfsgid32:
5302 ret = get_errno(setfsgid(arg1));
5303 break;
5304 #endif
5305
5306 case TARGET_NR_pivot_root:
5307 goto unimplemented;
5308 #ifdef TARGET_NR_mincore
5309 case TARGET_NR_mincore:
5310 goto unimplemented;
5311 #endif
5312 #ifdef TARGET_NR_madvise
5313 case TARGET_NR_madvise:
5314 /* A straight passthrough may not be safe because qemu sometimes
5315 turns private flie-backed mappings into anonymous mappings.
5316 This will break MADV_DONTNEED.
5317 This is a hint, so ignoring and returning success is ok. */
5318 ret = get_errno(0);
5319 break;
5320 #endif
5321 #if TARGET_ABI_BITS == 32
5322 case TARGET_NR_fcntl64:
5323 {
5324 int cmd;
5325 struct flock64 fl;
5326 struct target_flock64 *target_fl;
5327 #ifdef TARGET_ARM
5328 struct target_eabi_flock64 *target_efl;
5329 #endif
5330
5331 switch(arg2){
5332 case TARGET_F_GETLK64:
5333 cmd = F_GETLK64;
5334 break;
5335 case TARGET_F_SETLK64:
5336 cmd = F_SETLK64;
5337 break;
5338 case TARGET_F_SETLKW64:
5339 cmd = F_SETLK64;
5340 break;
5341 default:
5342 cmd = arg2;
5343 break;
5344 }
5345
5346 switch(arg2) {
5347 case TARGET_F_GETLK64:
5348 #ifdef TARGET_ARM
5349 if (((CPUARMState *)cpu_env)->eabi) {
5350 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
5351 goto efault;
5352 fl.l_type = tswap16(target_efl->l_type);
5353 fl.l_whence = tswap16(target_efl->l_whence);
5354 fl.l_start = tswap64(target_efl->l_start);
5355 fl.l_len = tswap64(target_efl->l_len);
5356 fl.l_pid = tswapl(target_efl->l_pid);
5357 unlock_user_struct(target_efl, arg3, 0);
5358 } else
5359 #endif
5360 {
5361 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
5362 goto efault;
5363 fl.l_type = tswap16(target_fl->l_type);
5364 fl.l_whence = tswap16(target_fl->l_whence);
5365 fl.l_start = tswap64(target_fl->l_start);
5366 fl.l_len = tswap64(target_fl->l_len);
5367 fl.l_pid = tswapl(target_fl->l_pid);
5368 unlock_user_struct(target_fl, arg3, 0);
5369 }
5370 ret = get_errno(fcntl(arg1, cmd, &fl));
5371 if (ret == 0) {
5372 #ifdef TARGET_ARM
5373 if (((CPUARMState *)cpu_env)->eabi) {
5374 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
5375 goto efault;
5376 target_efl->l_type = tswap16(fl.l_type);
5377 target_efl->l_whence = tswap16(fl.l_whence);
5378 target_efl->l_start = tswap64(fl.l_start);
5379 target_efl->l_len = tswap64(fl.l_len);
5380 target_efl->l_pid = tswapl(fl.l_pid);
5381 unlock_user_struct(target_efl, arg3, 1);
5382 } else
5383 #endif
5384 {
5385 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
5386 goto efault;
5387 target_fl->l_type = tswap16(fl.l_type);
5388 target_fl->l_whence = tswap16(fl.l_whence);
5389 target_fl->l_start = tswap64(fl.l_start);
5390 target_fl->l_len = tswap64(fl.l_len);
5391 target_fl->l_pid = tswapl(fl.l_pid);
5392 unlock_user_struct(target_fl, arg3, 1);
5393 }
5394 }
5395 break;
5396
5397 case TARGET_F_SETLK64:
5398 case TARGET_F_SETLKW64:
5399 #ifdef TARGET_ARM
5400 if (((CPUARMState *)cpu_env)->eabi) {
5401 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
5402 goto efault;
5403 fl.l_type = tswap16(target_efl->l_type);
5404 fl.l_whence = tswap16(target_efl->l_whence);
5405 fl.l_start = tswap64(target_efl->l_start);
5406 fl.l_len = tswap64(target_efl->l_len);
5407 fl.l_pid = tswapl(target_efl->l_pid);
5408 unlock_user_struct(target_efl, arg3, 0);
5409 } else
5410 #endif
5411 {
5412 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
5413 goto efault;
5414 fl.l_type = tswap16(target_fl->l_type);
5415 fl.l_whence = tswap16(target_fl->l_whence);
5416 fl.l_start = tswap64(target_fl->l_start);
5417 fl.l_len = tswap64(target_fl->l_len);
5418 fl.l_pid = tswapl(target_fl->l_pid);
5419 unlock_user_struct(target_fl, arg3, 0);
5420 }
5421 ret = get_errno(fcntl(arg1, cmd, &fl));
5422 break;
5423 default:
5424 ret = do_fcntl(arg1, cmd, arg3);
5425 break;
5426 }
5427 break;
5428 }
5429 #endif
5430 #ifdef TARGET_NR_cacheflush
5431 case TARGET_NR_cacheflush:
5432 /* self-modifying code is handled automatically, so nothing needed */
5433 ret = 0;
5434 break;
5435 #endif
5436 #ifdef TARGET_NR_security
5437 case TARGET_NR_security:
5438 goto unimplemented;
5439 #endif
5440 #ifdef TARGET_NR_getpagesize
5441 case TARGET_NR_getpagesize:
5442 ret = TARGET_PAGE_SIZE;
5443 break;
5444 #endif
5445 case TARGET_NR_gettid:
5446 ret = get_errno(gettid());
5447 break;
5448 #ifdef TARGET_NR_readahead
5449 case TARGET_NR_readahead:
5450 goto unimplemented;
5451 #endif
5452 #ifdef TARGET_NR_setxattr
5453 case TARGET_NR_setxattr:
5454 case TARGET_NR_lsetxattr:
5455 case TARGET_NR_fsetxattr:
5456 case TARGET_NR_getxattr:
5457 case TARGET_NR_lgetxattr:
5458 case TARGET_NR_fgetxattr:
5459 case TARGET_NR_listxattr:
5460 case TARGET_NR_llistxattr:
5461 case TARGET_NR_flistxattr:
5462 case TARGET_NR_removexattr:
5463 case TARGET_NR_lremovexattr:
5464 case TARGET_NR_fremovexattr:
5465 goto unimplemented_nowarn;
5466 #endif
5467 #ifdef TARGET_NR_set_thread_area
5468 case TARGET_NR_set_thread_area:
5469 #if defined(TARGET_MIPS)
5470 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
5471 ret = 0;
5472 break;
5473 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
5474 ret = do_set_thread_area(cpu_env, arg1);
5475 break;
5476 #else
5477 goto unimplemented_nowarn;
5478 #endif
5479 #endif
5480 #ifdef TARGET_NR_get_thread_area
5481 case TARGET_NR_get_thread_area:
5482 #if defined(TARGET_I386) && defined(TARGET_ABI32)
5483 ret = do_get_thread_area(cpu_env, arg1);
5484 #else
5485 goto unimplemented_nowarn;
5486 #endif
5487 #endif
5488 #ifdef TARGET_NR_getdomainname
5489 case TARGET_NR_getdomainname:
5490 goto unimplemented_nowarn;
5491 #endif
5492
5493 #ifdef TARGET_NR_clock_gettime
5494 case TARGET_NR_clock_gettime:
5495 {
5496 struct timespec ts;
5497 ret = get_errno(clock_gettime(arg1, &ts));
5498 if (!is_error(ret)) {
5499 host_to_target_timespec(arg2, &ts);
5500 }
5501 break;
5502 }
5503 #endif
5504 #ifdef TARGET_NR_clock_getres
5505 case TARGET_NR_clock_getres:
5506 {
5507 struct timespec ts;
5508 ret = get_errno(clock_getres(arg1, &ts));
5509 if (!is_error(ret)) {
5510 host_to_target_timespec(arg2, &ts);
5511 }
5512 break;
5513 }
5514 #endif
5515
5516 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
5517 case TARGET_NR_set_tid_address:
5518 ret = get_errno(set_tid_address((int *)g2h(arg1)));
5519 break;
5520 #endif
5521
5522 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
5523 case TARGET_NR_tkill:
5524 ret = get_errno(sys_tkill((int)arg1, (int)arg2));
5525 break;
5526 #endif
5527
5528 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
5529 case TARGET_NR_tgkill:
5530 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3));
5531 break;
5532 #endif
5533
5534 #ifdef TARGET_NR_set_robust_list
5535 case TARGET_NR_set_robust_list:
5536 goto unimplemented_nowarn;
5537 #endif
5538
5539 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
5540 case TARGET_NR_utimensat:
5541 {
5542 struct timespec ts[2];
5543 target_to_host_timespec(ts, arg3);
5544 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
5545 if (!arg2)
5546 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4));
5547 else {
5548 if (!(p = lock_user_string(arg2))) {
5549 ret = -TARGET_EFAULT;
5550 goto fail;
5551 }
5552 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4));
5553 unlock_user(p, arg2, 0);
5554 }
5555 }
5556 break;
5557 #endif
5558
5559 default:
5560 unimplemented:
5561 gemu_log("qemu: Unsupported syscall: %d\n", num);
5562 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
5563 unimplemented_nowarn:
5564 #endif
5565 ret = -TARGET_ENOSYS;
5566 break;
5567 }
5568 fail:
5569 #ifdef DEBUG
5570 gemu_log(" = %ld\n", ret);
5571 #endif
5572 if(do_strace)
5573 print_syscall_ret(num, ret);
5574 return ret;
5575 efault:
5576 ret = -TARGET_EFAULT;
5577 goto fail;
5578 }
Qemu copy for testing