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