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kvm: libkvm: add backward compatibility support for kvm abi 10
[qemu-kvm/fedora.git] / linux-user / syscall.c
blob45c8f2939765c701086481bbee53381cf2264677
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/wait.h>
32 #include <sys/time.h>
33 #include <sys/stat.h>
34 #include <sys/mount.h>
35 #include <sys/resource.h>
36 #include <sys/mman.h>
37 #include <sys/swap.h>
38 #include <signal.h>
39 #include <sched.h>
40 #include <sys/socket.h>
41 #include <sys/uio.h>
42 #include <sys/poll.h>
43 #include <sys/times.h>
44 #include <sys/shm.h>
45 #include <sys/sem.h>
46 #include <sys/statfs.h>
47 #include <utime.h>
48 #include <sys/sysinfo.h>
49 //#include <sys/user.h>
50 #include <netinet/ip.h>
51 #include <netinet/tcp.h>
52
53 #define termios host_termios
54 #define winsize host_winsize
55 #define termio host_termio
56 #define sgttyb host_sgttyb /* same as target */
57 #define tchars host_tchars /* same as target */
58 #define ltchars host_ltchars /* same as target */
59
60 #include <linux/termios.h>
61 #include <linux/unistd.h>
62 #include <linux/utsname.h>
63 #include <linux/cdrom.h>
64 #include <linux/hdreg.h>
65 #include <linux/soundcard.h>
66 #include <linux/dirent.h>
67 #include <linux/kd.h>
68
69 #include "qemu.h"
70
71 //#define DEBUG
72
73 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
74 || defined(TARGET_M68K)
75 /* 16 bit uid wrappers emulation */
76 #define USE_UID16
77 #endif
78
79 //#include <linux/msdos_fs.h>
80 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
81 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
82
83
84 #undef _syscall0
85 #undef _syscall1
86 #undef _syscall2
87 #undef _syscall3
88 #undef _syscall4
89 #undef _syscall5
90 #undef _syscall6
91
92 #define _syscall0(type,name) \
93 type name (void) \
94 { \
95 return syscall(__NR_##name); \
96 }
97
98 #define _syscall1(type,name,type1,arg1) \
99 type name (type1 arg1) \
100 { \
101 return syscall(__NR_##name, arg1); \
102 }
103
104 #define _syscall2(type,name,type1,arg1,type2,arg2) \
105 type name (type1 arg1,type2 arg2) \
106 { \
107 return syscall(__NR_##name, arg1, arg2); \
108 }
109
110 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
111 type name (type1 arg1,type2 arg2,type3 arg3) \
112 { \
113 return syscall(__NR_##name, arg1, arg2, arg3); \
114 }
115
116 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
117 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
118 { \
119 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
120 }
121
122 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
123 type5,arg5) \
124 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
125 { \
126 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
127 }
128
129
130 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
131 type5,arg5,type6,arg6) \
132 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
133 { \
134 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
135 }
136
137
138 #define __NR_sys_uname __NR_uname
139 #define __NR_sys_getcwd1 __NR_getcwd
140 #define __NR_sys_getdents __NR_getdents
141 #define __NR_sys_getdents64 __NR_getdents64
142 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
143
144 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
145 #define __NR__llseek __NR_lseek
146 #endif
147
148 #ifdef __NR_gettid
149 _syscall0(int, gettid)
150 #else
151 static int gettid(void) {
152 return -ENOSYS;
153 }
154 #endif
155 _syscall1(int,sys_uname,struct new_utsname *,buf)
156 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
157 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
158 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
159 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
160 loff_t *, res, uint, wh);
161 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
162 #ifdef __NR_exit_group
163 _syscall1(int,exit_group,int,error_code)
164 #endif
165
166 extern int personality(int);
167 extern int flock(int, int);
168 extern int setfsuid(int);
169 extern int setfsgid(int);
170 extern int setresuid(uid_t, uid_t, uid_t);
171 extern int getresuid(uid_t *, uid_t *, uid_t *);
172 extern int setresgid(gid_t, gid_t, gid_t);
173 extern int getresgid(gid_t *, gid_t *, gid_t *);
174 extern int setgroups(int, gid_t *);
175
176 static inline long get_errno(long ret)
177 {
178 if (ret == -1)
179 return -errno;
180 else
181 return ret;
182 }
183
184 static inline int is_error(long ret)
185 {
186 return (unsigned long)ret >= (unsigned long)(-4096);
187 }
188
189 static target_ulong target_brk;
190 static target_ulong target_original_brk;
191
192 void target_set_brk(target_ulong new_brk)
193 {
194 target_original_brk = target_brk = new_brk;
195 }
196
197 long do_brk(target_ulong new_brk)
198 {
199 target_ulong brk_page;
200 long mapped_addr;
201 int new_alloc_size;
202
203 if (!new_brk)
204 return target_brk;
205 if (new_brk < target_original_brk)
206 return -ENOMEM;
207
208 brk_page = HOST_PAGE_ALIGN(target_brk);
209
210 /* If the new brk is less than this, set it and we're done... */
211 if (new_brk < brk_page) {
212 target_brk = new_brk;
213 return target_brk;
214 }
215
216 /* We need to allocate more memory after the brk... */
217 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
218 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
219 PROT_READ|PROT_WRITE,
220 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
221 if (is_error(mapped_addr)) {
222 return mapped_addr;
223 } else {
224 target_brk = new_brk;
225 return target_brk;
226 }
227 }
228
229 static inline fd_set *target_to_host_fds(fd_set *fds,
230 target_long *target_fds, int n)
231 {
232 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
233 return (fd_set *)target_fds;
234 #else
235 int i, b;
236 if (target_fds) {
237 FD_ZERO(fds);
238 for(i = 0;i < n; i++) {
239 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
240 (i & (TARGET_LONG_BITS - 1))) & 1;
241 if (b)
242 FD_SET(i, fds);
243 }
244 return fds;
245 } else {
246 return NULL;
247 }
248 #endif
249 }
250
251 static inline void host_to_target_fds(target_long *target_fds,
252 fd_set *fds, int n)
253 {
254 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
255 /* nothing to do */
256 #else
257 int i, nw, j, k;
258 target_long v;
259
260 if (target_fds) {
261 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
262 k = 0;
263 for(i = 0;i < nw; i++) {
264 v = 0;
265 for(j = 0; j < TARGET_LONG_BITS; j++) {
266 v |= ((FD_ISSET(k, fds) != 0) << j);
267 k++;
268 }
269 target_fds[i] = tswapl(v);
270 }
271 }
272 #endif
273 }
274
275 #if defined(__alpha__)
276 #define HOST_HZ 1024
277 #else
278 #define HOST_HZ 100
279 #endif
280
281 static inline long host_to_target_clock_t(long ticks)
282 {
283 #if HOST_HZ == TARGET_HZ
284 return ticks;
285 #else
286 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
287 #endif
288 }
289
290 static inline void host_to_target_rusage(target_ulong target_addr,
291 const struct rusage *rusage)
292 {
293 struct target_rusage *target_rusage;
294
295 lock_user_struct(target_rusage, target_addr, 0);
296 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
297 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
298 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
299 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
300 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
301 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
302 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
303 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
304 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
305 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
306 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
307 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
308 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
309 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
310 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
311 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
312 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
313 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
314 unlock_user_struct(target_rusage, target_addr, 1);
315 }
316
317 static inline void target_to_host_timeval(struct timeval *tv,
318 target_ulong target_addr)
319 {
320 struct target_timeval *target_tv;
321
322 lock_user_struct(target_tv, target_addr, 1);
323 tv->tv_sec = tswapl(target_tv->tv_sec);
324 tv->tv_usec = tswapl(target_tv->tv_usec);
325 unlock_user_struct(target_tv, target_addr, 0);
326 }
327
328 static inline void host_to_target_timeval(target_ulong target_addr,
329 const struct timeval *tv)
330 {
331 struct target_timeval *target_tv;
332
333 lock_user_struct(target_tv, target_addr, 0);
334 target_tv->tv_sec = tswapl(tv->tv_sec);
335 target_tv->tv_usec = tswapl(tv->tv_usec);
336 unlock_user_struct(target_tv, target_addr, 1);
337 }
338
339
340 static long do_select(long n,
341 target_ulong rfd_p, target_ulong wfd_p,
342 target_ulong efd_p, target_ulong target_tv)
343 {
344 fd_set rfds, wfds, efds;
345 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
346 target_long *target_rfds, *target_wfds, *target_efds;
347 struct timeval tv, *tv_ptr;
348 long ret;
349 int ok;
350
351 if (rfd_p) {
352 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
353 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
354 } else {
355 target_rfds = NULL;
356 rfds_ptr = NULL;
357 }
358 if (wfd_p) {
359 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
360 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
361 } else {
362 target_wfds = NULL;
363 wfds_ptr = NULL;
364 }
365 if (efd_p) {
366 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
367 efds_ptr = target_to_host_fds(&efds, target_efds, n);
368 } else {
369 target_efds = NULL;
370 efds_ptr = NULL;
371 }
372
373 if (target_tv) {
374 target_to_host_timeval(&tv, target_tv);
375 tv_ptr = &tv;
376 } else {
377 tv_ptr = NULL;
378 }
379 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
380 ok = !is_error(ret);
381
382 if (ok) {
383 host_to_target_fds(target_rfds, rfds_ptr, n);
384 host_to_target_fds(target_wfds, wfds_ptr, n);
385 host_to_target_fds(target_efds, efds_ptr, n);
386
387 if (target_tv) {
388 host_to_target_timeval(target_tv, &tv);
389 }
390 }
391 if (target_rfds)
392 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
393 if (target_wfds)
394 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
395 if (target_efds)
396 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
397
398 return ret;
399 }
400
401 static inline void target_to_host_sockaddr(struct sockaddr *addr,
402 target_ulong target_addr,
403 socklen_t len)
404 {
405 struct target_sockaddr *target_saddr;
406
407 target_saddr = lock_user(target_addr, len, 1);
408 memcpy(addr, target_saddr, len);
409 addr->sa_family = tswap16(target_saddr->sa_family);
410 unlock_user(target_saddr, target_addr, 0);
411 }
412
413 static inline void host_to_target_sockaddr(target_ulong target_addr,
414 struct sockaddr *addr,
415 socklen_t len)
416 {
417 struct target_sockaddr *target_saddr;
418
419 target_saddr = lock_user(target_addr, len, 0);
420 memcpy(target_saddr, addr, len);
421 target_saddr->sa_family = tswap16(addr->sa_family);
422 unlock_user(target_saddr, target_addr, len);
423 }
424
425 /* ??? Should this also swap msgh->name? */
426 static inline void target_to_host_cmsg(struct msghdr *msgh,
427 struct target_msghdr *target_msgh)
428 {
429 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
430 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
431 socklen_t space = 0;
432
433 while (cmsg && target_cmsg) {
434 void *data = CMSG_DATA(cmsg);
435 void *target_data = TARGET_CMSG_DATA(target_cmsg);
436
437 int len = tswapl(target_cmsg->cmsg_len)
438 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
439
440 space += CMSG_SPACE(len);
441 if (space > msgh->msg_controllen) {
442 space -= CMSG_SPACE(len);
443 gemu_log("Host cmsg overflow\n");
444 break;
445 }
446
447 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
448 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
449 cmsg->cmsg_len = CMSG_LEN(len);
450
451 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
452 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
453 memcpy(data, target_data, len);
454 } else {
455 int *fd = (int *)data;
456 int *target_fd = (int *)target_data;
457 int i, numfds = len / sizeof(int);
458
459 for (i = 0; i < numfds; i++)
460 fd[i] = tswap32(target_fd[i]);
461 }
462
463 cmsg = CMSG_NXTHDR(msgh, cmsg);
464 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
465 }
466
467 msgh->msg_controllen = space;
468 }
469
470 /* ??? Should this also swap msgh->name? */
471 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
472 struct msghdr *msgh)
473 {
474 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
475 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
476 socklen_t space = 0;
477
478 while (cmsg && target_cmsg) {
479 void *data = CMSG_DATA(cmsg);
480 void *target_data = TARGET_CMSG_DATA(target_cmsg);
481
482 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
483
484 space += TARGET_CMSG_SPACE(len);
485 if (space > tswapl(target_msgh->msg_controllen)) {
486 space -= TARGET_CMSG_SPACE(len);
487 gemu_log("Target cmsg overflow\n");
488 break;
489 }
490
491 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
492 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
493 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
494
495 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
496 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
497 memcpy(target_data, data, len);
498 } else {
499 int *fd = (int *)data;
500 int *target_fd = (int *)target_data;
501 int i, numfds = len / sizeof(int);
502
503 for (i = 0; i < numfds; i++)
504 target_fd[i] = tswap32(fd[i]);
505 }
506
507 cmsg = CMSG_NXTHDR(msgh, cmsg);
508 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
509 }
510
511 msgh->msg_controllen = tswapl(space);
512 }
513
514 static long do_setsockopt(int sockfd, int level, int optname,
515 target_ulong optval, socklen_t optlen)
516 {
517 int val, ret;
518
519 switch(level) {
520 case SOL_TCP:
521 /* TCP options all take an 'int' value. */
522 if (optlen < sizeof(uint32_t))
523 return -EINVAL;
524
525 val = tget32(optval);
526 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
527 break;
528 case SOL_IP:
529 switch(optname) {
530 case IP_TOS:
531 case IP_TTL:
532 case IP_HDRINCL:
533 case IP_ROUTER_ALERT:
534 case IP_RECVOPTS:
535 case IP_RETOPTS:
536 case IP_PKTINFO:
537 case IP_MTU_DISCOVER:
538 case IP_RECVERR:
539 case IP_RECVTOS:
540 #ifdef IP_FREEBIND
541 case IP_FREEBIND:
542 #endif
543 case IP_MULTICAST_TTL:
544 case IP_MULTICAST_LOOP:
545 val = 0;
546 if (optlen >= sizeof(uint32_t)) {
547 val = tget32(optval);
548 } else if (optlen >= 1) {
549 val = tget8(optval);
550 }
551 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
552 break;
553 default:
554 goto unimplemented;
555 }
556 break;
557 case TARGET_SOL_SOCKET:
558 switch (optname) {
559 /* Options with 'int' argument. */
560 case TARGET_SO_DEBUG:
561 optname = SO_DEBUG;
562 break;
563 case TARGET_SO_REUSEADDR:
564 optname = SO_REUSEADDR;
565 break;
566 case TARGET_SO_TYPE:
567 optname = SO_TYPE;
568 break;
569 case TARGET_SO_ERROR:
570 optname = SO_ERROR;
571 break;
572 case TARGET_SO_DONTROUTE:
573 optname = SO_DONTROUTE;
574 break;
575 case TARGET_SO_BROADCAST:
576 optname = SO_BROADCAST;
577 break;
578 case TARGET_SO_SNDBUF:
579 optname = SO_SNDBUF;
580 break;
581 case TARGET_SO_RCVBUF:
582 optname = SO_RCVBUF;
583 break;
584 case TARGET_SO_KEEPALIVE:
585 optname = SO_KEEPALIVE;
586 break;
587 case TARGET_SO_OOBINLINE:
588 optname = SO_OOBINLINE;
589 break;
590 case TARGET_SO_NO_CHECK:
591 optname = SO_NO_CHECK;
592 break;
593 case TARGET_SO_PRIORITY:
594 optname = SO_PRIORITY;
595 break;
596 #ifdef SO_BSDCOMPAT
597 case TARGET_SO_BSDCOMPAT:
598 optname = SO_BSDCOMPAT;
599 break;
600 #endif
601 case TARGET_SO_PASSCRED:
602 optname = SO_PASSCRED;
603 break;
604 case TARGET_SO_TIMESTAMP:
605 optname = SO_TIMESTAMP;
606 break;
607 case TARGET_SO_RCVLOWAT:
608 optname = SO_RCVLOWAT;
609 break;
610 case TARGET_SO_RCVTIMEO:
611 optname = SO_RCVTIMEO;
612 break;
613 case TARGET_SO_SNDTIMEO:
614 optname = SO_SNDTIMEO;
615 break;
616 break;
617 default:
618 goto unimplemented;
619 }
620 if (optlen < sizeof(uint32_t))
621 return -EINVAL;
622
623 val = tget32(optval);
624 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
625 break;
626 default:
627 unimplemented:
628 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
629 ret = -ENOSYS;
630 }
631 return ret;
632 }
633
634 static long do_getsockopt(int sockfd, int level, int optname,
635 target_ulong optval, target_ulong optlen)
636 {
637 int len, lv, val, ret;
638
639 switch(level) {
640 case TARGET_SOL_SOCKET:
641 level = SOL_SOCKET;
642 switch (optname) {
643 case TARGET_SO_LINGER:
644 case TARGET_SO_RCVTIMEO:
645 case TARGET_SO_SNDTIMEO:
646 case TARGET_SO_PEERCRED:
647 case TARGET_SO_PEERNAME:
648 /* These don't just return a single integer */
649 goto unimplemented;
650 default:
651 goto int_case;
652 }
653 break;
654 case SOL_TCP:
655 /* TCP options all take an 'int' value. */
656 int_case:
657 len = tget32(optlen);
658 if (len < 0)
659 return -EINVAL;
660 lv = sizeof(int);
661 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
662 if (ret < 0)
663 return ret;
664 val = tswap32(val);
665 if (len > lv)
666 len = lv;
667 if (len == 4)
668 tput32(optval, val);
669 else
670 tput8(optval, val);
671 tput32(optlen, len);
672 break;
673 case SOL_IP:
674 switch(optname) {
675 case IP_TOS:
676 case IP_TTL:
677 case IP_HDRINCL:
678 case IP_ROUTER_ALERT:
679 case IP_RECVOPTS:
680 case IP_RETOPTS:
681 case IP_PKTINFO:
682 case IP_MTU_DISCOVER:
683 case IP_RECVERR:
684 case IP_RECVTOS:
685 #ifdef IP_FREEBIND
686 case IP_FREEBIND:
687 #endif
688 case IP_MULTICAST_TTL:
689 case IP_MULTICAST_LOOP:
690 len = tget32(optlen);
691 if (len < 0)
692 return -EINVAL;
693 lv = sizeof(int);
694 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
695 if (ret < 0)
696 return ret;
697 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
698 len = 1;
699 tput32(optlen, len);
700 tput8(optval, val);
701 } else {
702 if (len > sizeof(int))
703 len = sizeof(int);
704 tput32(optlen, len);
705 tput32(optval, val);
706 }
707 break;
708 default:
709 goto unimplemented;
710 }
711 break;
712 default:
713 unimplemented:
714 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
715 level, optname);
716 ret = -ENOSYS;
717 break;
718 }
719 return ret;
720 }
721
722 static void lock_iovec(struct iovec *vec, target_ulong target_addr,
723 int count, int copy)
724 {
725 struct target_iovec *target_vec;
726 target_ulong base;
727 int i;
728
729 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
730 for(i = 0;i < count; i++) {
731 base = tswapl(target_vec[i].iov_base);
732 vec[i].iov_len = tswapl(target_vec[i].iov_len);
733 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
734 }
735 unlock_user (target_vec, target_addr, 0);
736 }
737
738 static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
739 int count, int copy)
740 {
741 struct target_iovec *target_vec;
742 target_ulong base;
743 int i;
744
745 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
746 for(i = 0;i < count; i++) {
747 base = tswapl(target_vec[i].iov_base);
748 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
749 }
750 unlock_user (target_vec, target_addr, 0);
751 }
752
753 static long do_socket(int domain, int type, int protocol)
754 {
755 #if defined(TARGET_MIPS)
756 switch(type) {
757 case TARGET_SOCK_DGRAM:
758 type = SOCK_DGRAM;
759 break;
760 case TARGET_SOCK_STREAM:
761 type = SOCK_STREAM;
762 break;
763 case TARGET_SOCK_RAW:
764 type = SOCK_RAW;
765 break;
766 case TARGET_SOCK_RDM:
767 type = SOCK_RDM;
768 break;
769 case TARGET_SOCK_SEQPACKET:
770 type = SOCK_SEQPACKET;
771 break;
772 case TARGET_SOCK_PACKET:
773 type = SOCK_PACKET;
774 break;
775 }
776 #endif
777 return get_errno(socket(domain, type, protocol));
778 }
779
780 static long do_bind(int sockfd, target_ulong target_addr,
781 socklen_t addrlen)
782 {
783 void *addr = alloca(addrlen);
784
785 target_to_host_sockaddr(addr, target_addr, addrlen);
786 return get_errno(bind(sockfd, addr, addrlen));
787 }
788
789 static long do_connect(int sockfd, target_ulong target_addr,
790 socklen_t addrlen)
791 {
792 void *addr = alloca(addrlen);
793
794 target_to_host_sockaddr(addr, target_addr, addrlen);
795 return get_errno(connect(sockfd, addr, addrlen));
796 }
797
798 static long do_sendrecvmsg(int fd, target_ulong target_msg,
799 int flags, int send)
800 {
801 long ret;
802 struct target_msghdr *msgp;
803 struct msghdr msg;
804 int count;
805 struct iovec *vec;
806 target_ulong target_vec;
807
808 lock_user_struct(msgp, target_msg, 1);
809 if (msgp->msg_name) {
810 msg.msg_namelen = tswap32(msgp->msg_namelen);
811 msg.msg_name = alloca(msg.msg_namelen);
812 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
813 msg.msg_namelen);
814 } else {
815 msg.msg_name = NULL;
816 msg.msg_namelen = 0;
817 }
818 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
819 msg.msg_control = alloca(msg.msg_controllen);
820 msg.msg_flags = tswap32(msgp->msg_flags);
821
822 count = tswapl(msgp->msg_iovlen);
823 vec = alloca(count * sizeof(struct iovec));
824 target_vec = tswapl(msgp->msg_iov);
825 lock_iovec(vec, target_vec, count, send);
826 msg.msg_iovlen = count;
827 msg.msg_iov = vec;
828
829 if (send) {
830 target_to_host_cmsg(&msg, msgp);
831 ret = get_errno(sendmsg(fd, &msg, flags));
832 } else {
833 ret = get_errno(recvmsg(fd, &msg, flags));
834 if (!is_error(ret))
835 host_to_target_cmsg(msgp, &msg);
836 }
837 unlock_iovec(vec, target_vec, count, !send);
838 return ret;
839 }
840
841 static long do_accept(int fd, target_ulong target_addr,
842 target_ulong target_addrlen)
843 {
844 socklen_t addrlen = tget32(target_addrlen);
845 void *addr = alloca(addrlen);
846 long ret;
847
848 ret = get_errno(accept(fd, addr, &addrlen));
849 if (!is_error(ret)) {
850 host_to_target_sockaddr(target_addr, addr, addrlen);
851 tput32(target_addrlen, addrlen);
852 }
853 return ret;
854 }
855
856 static long do_getpeername(int fd, target_ulong target_addr,
857 target_ulong target_addrlen)
858 {
859 socklen_t addrlen = tget32(target_addrlen);
860 void *addr = alloca(target_addrlen);
861 long ret;
862
863 ret = get_errno(getpeername(fd, addr, &addrlen));
864 if (!is_error(ret)) {
865 host_to_target_sockaddr(target_addr, addr, addrlen);
866 tput32(target_addrlen, addrlen);
867 }
868 return ret;
869 }
870
871 static long do_getsockname(int fd, target_ulong target_addr,
872 target_ulong target_addrlen)
873 {
874 socklen_t addrlen = tget32(target_addrlen);
875 void *addr = alloca(target_addrlen);
876 long ret;
877
878 ret = get_errno(getsockname(fd, addr, &addrlen));
879 if (!is_error(ret)) {
880 host_to_target_sockaddr(target_addr, addr, addrlen);
881 tput32(target_addrlen, addrlen);
882 }
883 return ret;
884 }
885
886 static long do_socketpair(int domain, int type, int protocol,
887 target_ulong target_tab)
888 {
889 int tab[2];
890 long ret;
891
892 ret = get_errno(socketpair(domain, type, protocol, tab));
893 if (!is_error(ret)) {
894 tput32(target_tab, tab[0]);
895 tput32(target_tab + 4, tab[1]);
896 }
897 return ret;
898 }
899
900 static long do_sendto(int fd, target_ulong msg, size_t len, int flags,
901 target_ulong target_addr, socklen_t addrlen)
902 {
903 void *addr;
904 void *host_msg;
905 long ret;
906
907 host_msg = lock_user(msg, len, 1);
908 if (target_addr) {
909 addr = alloca(addrlen);
910 target_to_host_sockaddr(addr, target_addr, addrlen);
911 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
912 } else {
913 ret = get_errno(send(fd, host_msg, len, flags));
914 }
915 unlock_user(host_msg, msg, 0);
916 return ret;
917 }
918
919 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
920 target_ulong target_addr, target_ulong target_addrlen)
921 {
922 socklen_t addrlen;
923 void *addr;
924 void *host_msg;
925 long ret;
926
927 host_msg = lock_user(msg, len, 0);
928 if (target_addr) {
929 addrlen = tget32(target_addrlen);
930 addr = alloca(addrlen);
931 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
932 } else {
933 addr = NULL; /* To keep compiler quiet. */
934 ret = get_errno(recv(fd, host_msg, len, flags));
935 }
936 if (!is_error(ret)) {
937 if (target_addr) {
938 host_to_target_sockaddr(target_addr, addr, addrlen);
939 tput32(target_addrlen, addrlen);
940 }
941 unlock_user(host_msg, msg, len);
942 } else {
943 unlock_user(host_msg, msg, 0);
944 }
945 return ret;
946 }
947
948 static long do_socketcall(int num, target_ulong vptr)
949 {
950 long ret;
951 const int n = sizeof(target_ulong);
952
953 switch(num) {
954 case SOCKOP_socket:
955 {
956 int domain = tgetl(vptr);
957 int type = tgetl(vptr + n);
958 int protocol = tgetl(vptr + 2 * n);
959 ret = do_socket(domain, type, protocol);
960 }
961 break;
962 case SOCKOP_bind:
963 {
964 int sockfd = tgetl(vptr);
965 target_ulong target_addr = tgetl(vptr + n);
966 socklen_t addrlen = tgetl(vptr + 2 * n);
967 ret = do_bind(sockfd, target_addr, addrlen);
968 }
969 break;
970 case SOCKOP_connect:
971 {
972 int sockfd = tgetl(vptr);
973 target_ulong target_addr = tgetl(vptr + n);
974 socklen_t addrlen = tgetl(vptr + 2 * n);
975 ret = do_connect(sockfd, target_addr, addrlen);
976 }
977 break;
978 case SOCKOP_listen:
979 {
980 int sockfd = tgetl(vptr);
981 int backlog = tgetl(vptr + n);
982 ret = get_errno(listen(sockfd, backlog));
983 }
984 break;
985 case SOCKOP_accept:
986 {
987 int sockfd = tgetl(vptr);
988 target_ulong target_addr = tgetl(vptr + n);
989 target_ulong target_addrlen = tgetl(vptr + 2 * n);
990 ret = do_accept(sockfd, target_addr, target_addrlen);
991 }
992 break;
993 case SOCKOP_getsockname:
994 {
995 int sockfd = tgetl(vptr);
996 target_ulong target_addr = tgetl(vptr + n);
997 target_ulong target_addrlen = tgetl(vptr + 2 * n);
998 ret = do_getsockname(sockfd, target_addr, target_addrlen);
999 }
1000 break;
1001 case SOCKOP_getpeername:
1002 {
1003 int sockfd = tgetl(vptr);
1004 target_ulong target_addr = tgetl(vptr + n);
1005 target_ulong target_addrlen = tgetl(vptr + 2 * n);
1006 ret = do_getpeername(sockfd, target_addr, target_addrlen);
1007 }
1008 break;
1009 case SOCKOP_socketpair:
1010 {
1011 int domain = tgetl(vptr);
1012 int type = tgetl(vptr + n);
1013 int protocol = tgetl(vptr + 2 * n);
1014 target_ulong tab = tgetl(vptr + 3 * n);
1015 ret = do_socketpair(domain, type, protocol, tab);
1016 }
1017 break;
1018 case SOCKOP_send:
1019 {
1020 int sockfd = tgetl(vptr);
1021 target_ulong msg = tgetl(vptr + n);
1022 size_t len = tgetl(vptr + 2 * n);
1023 int flags = tgetl(vptr + 3 * n);
1024 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1025 }
1026 break;
1027 case SOCKOP_recv:
1028 {
1029 int sockfd = tgetl(vptr);
1030 target_ulong msg = tgetl(vptr + n);
1031 size_t len = tgetl(vptr + 2 * n);
1032 int flags = tgetl(vptr + 3 * n);
1033 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1034 }
1035 break;
1036 case SOCKOP_sendto:
1037 {
1038 int sockfd = tgetl(vptr);
1039 target_ulong msg = tgetl(vptr + n);
1040 size_t len = tgetl(vptr + 2 * n);
1041 int flags = tgetl(vptr + 3 * n);
1042 target_ulong addr = tgetl(vptr + 4 * n);
1043 socklen_t addrlen = tgetl(vptr + 5 * n);
1044 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1045 }
1046 break;
1047 case SOCKOP_recvfrom:
1048 {
1049 int sockfd = tgetl(vptr);
1050 target_ulong msg = tgetl(vptr + n);
1051 size_t len = tgetl(vptr + 2 * n);
1052 int flags = tgetl(vptr + 3 * n);
1053 target_ulong addr = tgetl(vptr + 4 * n);
1054 target_ulong addrlen = tgetl(vptr + 5 * n);
1055 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1056 }
1057 break;
1058 case SOCKOP_shutdown:
1059 {
1060 int sockfd = tgetl(vptr);
1061 int how = tgetl(vptr + n);
1062
1063 ret = get_errno(shutdown(sockfd, how));
1064 }
1065 break;
1066 case SOCKOP_sendmsg:
1067 case SOCKOP_recvmsg:
1068 {
1069 int fd;
1070 target_ulong target_msg;
1071 int flags;
1072
1073 fd = tgetl(vptr);
1074 target_msg = tgetl(vptr + n);
1075 flags = tgetl(vptr + 2 * n);
1076
1077 ret = do_sendrecvmsg(fd, target_msg, flags,
1078 (num == SOCKOP_sendmsg));
1079 }
1080 break;
1081 case SOCKOP_setsockopt:
1082 {
1083 int sockfd = tgetl(vptr);
1084 int level = tgetl(vptr + n);
1085 int optname = tgetl(vptr + 2 * n);
1086 target_ulong optval = tgetl(vptr + 3 * n);
1087 socklen_t optlen = tgetl(vptr + 4 * n);
1088
1089 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1090 }
1091 break;
1092 case SOCKOP_getsockopt:
1093 {
1094 int sockfd = tgetl(vptr);
1095 int level = tgetl(vptr + n);
1096 int optname = tgetl(vptr + 2 * n);
1097 target_ulong optval = tgetl(vptr + 3 * n);
1098 target_ulong poptlen = tgetl(vptr + 4 * n);
1099
1100 ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1101 }
1102 break;
1103 default:
1104 gemu_log("Unsupported socketcall: %d\n", num);
1105 ret = -ENOSYS;
1106 break;
1107 }
1108 return ret;
1109 }
1110
1111 #define N_SHM_REGIONS 32
1112
1113 static struct shm_region {
1114 uint32_t start;
1115 uint32_t size;
1116 } shm_regions[N_SHM_REGIONS];
1117
1118 union semun {
1119 int val;
1120 struct senid_ds *buf;
1121 unsigned short *array;
1122 };
1123
1124 /* ??? This only works with linear mappings. */
1125 static long do_ipc(long call, long first, long second, long third,
1126 long ptr, long fifth)
1127 {
1128 int version;
1129 long ret = 0;
1130 unsigned long raddr;
1131 struct shmid_ds shm_info;
1132 int i;
1133
1134 version = call >> 16;
1135 call &= 0xffff;
1136
1137 switch (call) {
1138 case IPCOP_semop:
1139 ret = get_errno(semop(first,(struct sembuf *) ptr, second));
1140 break;
1141
1142 case IPCOP_semget:
1143 ret = get_errno(semget(first, second, third));
1144 break;
1145
1146 case IPCOP_semctl:
1147 ret = get_errno(semctl(first, second, third, ((union semun*)ptr)->val));
1148
1149 break;
1150
1151 case IPCOP_semtimedop:
1152 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1153 ret = -ENOSYS;
1154 break;
1155
1156 case IPCOP_msgget:
1157 ret = get_errno(msgget(first, second));
1158 break;
1159
1160 case IPCOP_msgsnd:
1161 ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third));
1162 break;
1163
1164 case IPCOP_msgctl:
1165 ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr));
1166 break;
1167
1168 case IPCOP_msgrcv:
1169 {
1170 struct ipc_kludge
1171 {
1172 void *__unbounded msgp;
1173 long int msgtyp;
1174 };
1175
1176 struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
1177 struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1178
1179 ret = get_errno(msgrcv(first, msgp, second, 0, third));
1180
1181 }
1182 break;
1183
1184 case IPCOP_shmat:
1185 /* SHM_* flags are the same on all linux platforms */
1186 ret = get_errno((long) shmat(first, (void *) ptr, second));
1187 if (is_error(ret))
1188 break;
1189 raddr = ret;
1190 /* find out the length of the shared memory segment */
1191
1192 ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1193 if (is_error(ret)) {
1194 /* can't get length, bail out */
1195 shmdt((void *) raddr);
1196 break;
1197 }
1198 page_set_flags(raddr, raddr + shm_info.shm_segsz,
1199 PAGE_VALID | PAGE_READ |
1200 ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1201 for (i = 0; i < N_SHM_REGIONS; ++i) {
1202 if (shm_regions[i].start == 0) {
1203 shm_regions[i].start = raddr;
1204 shm_regions[i].size = shm_info.shm_segsz;
1205 break;
1206 }
1207 }
1208 if (put_user(raddr, (uint32_t *)third))
1209 return -EFAULT;
1210 ret = 0;
1211 break;
1212 case IPCOP_shmdt:
1213 for (i = 0; i < N_SHM_REGIONS; ++i) {
1214 if (shm_regions[i].start == ptr) {
1215 shm_regions[i].start = 0;
1216 page_set_flags(ptr, shm_regions[i].size, 0);
1217 break;
1218 }
1219 }
1220 ret = get_errno(shmdt((void *) ptr));
1221 break;
1222
1223 case IPCOP_shmget:
1224 /* IPC_* flag values are the same on all linux platforms */
1225 ret = get_errno(shmget(first, second, third));
1226 break;
1227
1228 /* IPC_* and SHM_* command values are the same on all linux platforms */
1229 case IPCOP_shmctl:
1230 switch(second) {
1231 case IPC_RMID:
1232 case SHM_LOCK:
1233 case SHM_UNLOCK:
1234 ret = get_errno(shmctl(first, second, NULL));
1235 break;
1236 default:
1237 goto unimplemented;
1238 }
1239 break;
1240 default:
1241 unimplemented:
1242 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1243 ret = -ENOSYS;
1244 break;
1245 }
1246 return ret;
1247 }
1248
1249 /* kernel structure types definitions */
1250 #define IFNAMSIZ 16
1251
1252 #define STRUCT(name, list...) STRUCT_ ## name,
1253 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
1254 enum {
1255 #include "syscall_types.h"
1256 };
1257 #undef STRUCT
1258 #undef STRUCT_SPECIAL
1259
1260 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1261 #define STRUCT_SPECIAL(name)
1262 #include "syscall_types.h"
1263 #undef STRUCT
1264 #undef STRUCT_SPECIAL
1265
1266 typedef struct IOCTLEntry {
1267 unsigned int target_cmd;
1268 unsigned int host_cmd;
1269 const char *name;
1270 int access;
1271 const argtype arg_type[5];
1272 } IOCTLEntry;
1273
1274 #define IOC_R 0x0001
1275 #define IOC_W 0x0002
1276 #define IOC_RW (IOC_R | IOC_W)
1277
1278 #define MAX_STRUCT_SIZE 4096
1279
1280 IOCTLEntry ioctl_entries[] = {
1281 #define IOCTL(cmd, access, types...) \
1282 { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1283 #include "ioctls.h"
1284 { 0, 0, },
1285 };
1286
1287 /* ??? Implement proper locking for ioctls. */
1288 static long do_ioctl(long fd, long cmd, long arg)
1289 {
1290 const IOCTLEntry *ie;
1291 const argtype *arg_type;
1292 long ret;
1293 uint8_t buf_temp[MAX_STRUCT_SIZE];
1294 int target_size;
1295 void *argptr;
1296
1297 ie = ioctl_entries;
1298 for(;;) {
1299 if (ie->target_cmd == 0) {
1300 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1301 return -ENOSYS;
1302 }
1303 if (ie->target_cmd == cmd)
1304 break;
1305 ie++;
1306 }
1307 arg_type = ie->arg_type;
1308 #if defined(DEBUG)
1309 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1310 #endif
1311 switch(arg_type[0]) {
1312 case TYPE_NULL:
1313 /* no argument */
1314 ret = get_errno(ioctl(fd, ie->host_cmd));
1315 break;
1316 case TYPE_PTRVOID:
1317 case TYPE_INT:
1318 /* int argment */
1319 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1320 break;
1321 case TYPE_PTR:
1322 arg_type++;
1323 target_size = thunk_type_size(arg_type, 0);
1324 switch(ie->access) {
1325 case IOC_R:
1326 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1327 if (!is_error(ret)) {
1328 argptr = lock_user(arg, target_size, 0);
1329 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1330 unlock_user(argptr, arg, target_size);
1331 }
1332 break;
1333 case IOC_W:
1334 argptr = lock_user(arg, target_size, 1);
1335 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1336 unlock_user(argptr, arg, 0);
1337 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1338 break;
1339 default:
1340 case IOC_RW:
1341 argptr = lock_user(arg, target_size, 1);
1342 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1343 unlock_user(argptr, arg, 0);
1344 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1345 if (!is_error(ret)) {
1346 argptr = lock_user(arg, target_size, 0);
1347 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1348 unlock_user(argptr, arg, target_size);
1349 }
1350 break;
1351 }
1352 break;
1353 default:
1354 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1355 ret = -ENOSYS;
1356 break;
1357 }
1358 return ret;
1359 }
1360
1361 bitmask_transtbl iflag_tbl[] = {
1362 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1363 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1364 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1365 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1366 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1367 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1368 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1369 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1370 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1371 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1372 { TARGET_IXON, TARGET_IXON, IXON, IXON },
1373 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1374 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1375 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1376 { 0, 0, 0, 0 }
1377 };
1378
1379 bitmask_transtbl oflag_tbl[] = {
1380 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1381 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1382 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1383 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1384 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1385 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1386 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1387 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1388 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1389 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1390 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1391 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1392 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1393 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1394 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1395 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1396 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1397 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1398 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1399 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1400 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1401 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1402 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1403 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1404 { 0, 0, 0, 0 }
1405 };
1406
1407 bitmask_transtbl cflag_tbl[] = {
1408 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1409 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1410 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1411 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1412 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1413 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1414 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1415 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1416 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1417 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1418 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1419 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1420 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1421 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1422 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1423 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1424 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1425 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1426 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1427 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1428 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1429 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1430 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1431 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1432 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1433 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1434 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1435 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1436 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1437 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1438 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1439 { 0, 0, 0, 0 }
1440 };
1441
1442 bitmask_transtbl lflag_tbl[] = {
1443 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1444 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1445 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1446 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1447 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1448 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1449 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1450 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1451 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1452 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1453 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1454 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1455 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1456 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1457 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1458 { 0, 0, 0, 0 }
1459 };
1460
1461 static void target_to_host_termios (void *dst, const void *src)
1462 {
1463 struct host_termios *host = dst;
1464 const struct target_termios *target = src;
1465
1466 host->c_iflag =
1467 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1468 host->c_oflag =
1469 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1470 host->c_cflag =
1471 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1472 host->c_lflag =
1473 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1474 host->c_line = target->c_line;
1475
1476 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1477 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1478 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1479 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1480 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1481 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1482 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1483 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1484 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1485 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1486 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1487 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1488 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1489 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1490 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1491 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1492 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1493 }
1494
1495 static void host_to_target_termios (void *dst, const void *src)
1496 {
1497 struct target_termios *target = dst;
1498 const struct host_termios *host = src;
1499
1500 target->c_iflag =
1501 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1502 target->c_oflag =
1503 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1504 target->c_cflag =
1505 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1506 target->c_lflag =
1507 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1508 target->c_line = host->c_line;
1509
1510 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1511 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1512 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1513 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1514 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1515 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1516 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1517 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1518 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1519 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1520 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1521 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1522 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1523 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1524 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1525 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1526 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1527 }
1528
1529 StructEntry struct_termios_def = {
1530 .convert = { host_to_target_termios, target_to_host_termios },
1531 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1532 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1533 };
1534
1535 static bitmask_transtbl mmap_flags_tbl[] = {
1536 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1537 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1538 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1539 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1540 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1541 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1542 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1543 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1544 { 0, 0, 0, 0 }
1545 };
1546
1547 static bitmask_transtbl fcntl_flags_tbl[] = {
1548 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
1549 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
1550 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
1551 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
1552 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
1553 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
1554 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
1555 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
1556 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
1557 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
1558 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1559 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
1560 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1561 #if defined(O_DIRECT)
1562 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
1563 #endif
1564 { 0, 0, 0, 0 }
1565 };
1566
1567 #if defined(TARGET_I386)
1568
1569 /* NOTE: there is really one LDT for all the threads */
1570 uint8_t *ldt_table;
1571
1572 static int read_ldt(target_ulong ptr, unsigned long bytecount)
1573 {
1574 int size;
1575 void *p;
1576
1577 if (!ldt_table)
1578 return 0;
1579 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1580 if (size > bytecount)
1581 size = bytecount;
1582 p = lock_user(ptr, size, 0);
1583 /* ??? Shoudl this by byteswapped? */
1584 memcpy(p, ldt_table, size);
1585 unlock_user(p, ptr, size);
1586 return size;
1587 }
1588
1589 /* XXX: add locking support */
1590 static int write_ldt(CPUX86State *env,
1591 target_ulong ptr, unsigned long bytecount, int oldmode)
1592 {
1593 struct target_modify_ldt_ldt_s ldt_info;
1594 struct target_modify_ldt_ldt_s *target_ldt_info;
1595 int seg_32bit, contents, read_exec_only, limit_in_pages;
1596 int seg_not_present, useable;
1597 uint32_t *lp, entry_1, entry_2;
1598
1599 if (bytecount != sizeof(ldt_info))
1600 return -EINVAL;
1601 lock_user_struct(target_ldt_info, ptr, 1);
1602 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1603 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1604 ldt_info.limit = tswap32(target_ldt_info->limit);
1605 ldt_info.flags = tswap32(target_ldt_info->flags);
1606 unlock_user_struct(target_ldt_info, ptr, 0);
1607
1608 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1609 return -EINVAL;
1610 seg_32bit = ldt_info.flags & 1;
1611 contents = (ldt_info.flags >> 1) & 3;
1612 read_exec_only = (ldt_info.flags >> 3) & 1;
1613 limit_in_pages = (ldt_info.flags >> 4) & 1;
1614 seg_not_present = (ldt_info.flags >> 5) & 1;
1615 useable = (ldt_info.flags >> 6) & 1;
1616
1617 if (contents == 3) {
1618 if (oldmode)
1619 return -EINVAL;
1620 if (seg_not_present == 0)
1621 return -EINVAL;
1622 }
1623 /* allocate the LDT */
1624 if (!ldt_table) {
1625 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1626 if (!ldt_table)
1627 return -ENOMEM;
1628 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1629 env->ldt.base = h2g(ldt_table);
1630 env->ldt.limit = 0xffff;
1631 }
1632
1633 /* NOTE: same code as Linux kernel */
1634 /* Allow LDTs to be cleared by the user. */
1635 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1636 if (oldmode ||
1637 (contents == 0 &&
1638 read_exec_only == 1 &&
1639 seg_32bit == 0 &&
1640 limit_in_pages == 0 &&
1641 seg_not_present == 1 &&
1642 useable == 0 )) {
1643 entry_1 = 0;
1644 entry_2 = 0;
1645 goto install;
1646 }
1647 }
1648
1649 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1650 (ldt_info.limit & 0x0ffff);
1651 entry_2 = (ldt_info.base_addr & 0xff000000) |
1652 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1653 (ldt_info.limit & 0xf0000) |
1654 ((read_exec_only ^ 1) << 9) |
1655 (contents << 10) |
1656 ((seg_not_present ^ 1) << 15) |
1657 (seg_32bit << 22) |
1658 (limit_in_pages << 23) |
1659 0x7000;
1660 if (!oldmode)
1661 entry_2 |= (useable << 20);
1662
1663 /* Install the new entry ... */
1664 install:
1665 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1666 lp[0] = tswap32(entry_1);
1667 lp[1] = tswap32(entry_2);
1668 return 0;
1669 }
1670
1671 /* specific and weird i386 syscalls */
1672 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1673 {
1674 int ret = -ENOSYS;
1675
1676 switch (func) {
1677 case 0:
1678 ret = read_ldt(ptr, bytecount);
1679 break;
1680 case 1:
1681 ret = write_ldt(env, ptr, bytecount, 1);
1682 break;
1683 case 0x11:
1684 ret = write_ldt(env, ptr, bytecount, 0);
1685 break;
1686 }
1687 return ret;
1688 }
1689
1690 #endif /* defined(TARGET_I386) */
1691
1692 /* this stack is the equivalent of the kernel stack associated with a
1693 thread/process */
1694 #define NEW_STACK_SIZE 8192
1695
1696 static int clone_func(void *arg)
1697 {
1698 CPUState *env = arg;
1699 cpu_loop(env);
1700 /* never exits */
1701 return 0;
1702 }
1703
1704 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1705 {
1706 int ret;
1707 TaskState *ts;
1708 uint8_t *new_stack;
1709 CPUState *new_env;
1710
1711 if (flags & CLONE_VM) {
1712 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1713 memset(ts, 0, sizeof(TaskState));
1714 new_stack = ts->stack;
1715 ts->used = 1;
1716 /* add in task state list */
1717 ts->next = first_task_state;
1718 first_task_state = ts;
1719 /* we create a new CPU instance. */
1720 new_env = cpu_init();
1721 memcpy(new_env, env, sizeof(CPUState));
1722 #if defined(TARGET_I386)
1723 if (!newsp)
1724 newsp = env->regs[R_ESP];
1725 new_env->regs[R_ESP] = newsp;
1726 new_env->regs[R_EAX] = 0;
1727 #elif defined(TARGET_ARM)
1728 if (!newsp)
1729 newsp = env->regs[13];
1730 new_env->regs[13] = newsp;
1731 new_env->regs[0] = 0;
1732 #elif defined(TARGET_SPARC)
1733 if (!newsp)
1734 newsp = env->regwptr[22];
1735 new_env->regwptr[22] = newsp;
1736 new_env->regwptr[0] = 0;
1737 /* XXXXX */
1738 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1739 #elif defined(TARGET_M68K)
1740 if (!newsp)
1741 newsp = env->aregs[7];
1742 new_env->aregs[7] = newsp;
1743 new_env->dregs[0] = 0;
1744 /* ??? is this sufficient? */
1745 #elif defined(TARGET_MIPS)
1746 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1747 #elif defined(TARGET_PPC)
1748 if (!newsp)
1749 newsp = env->gpr[1];
1750 new_env->gpr[1] = newsp;
1751 {
1752 int i;
1753 for (i = 7; i < 32; i++)
1754 new_env->gpr[i] = 0;
1755 }
1756 #elif defined(TARGET_SH4)
1757 if (!newsp)
1758 newsp = env->gregs[15];
1759 new_env->gregs[15] = newsp;
1760 /* XXXXX */
1761 #else
1762 #error unsupported target CPU
1763 #endif
1764 new_env->opaque = ts;
1765 #ifdef __ia64__
1766 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1767 #else
1768 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1769 #endif
1770 } else {
1771 /* if no CLONE_VM, we consider it is a fork */
1772 if ((flags & ~CSIGNAL) != 0)
1773 return -EINVAL;
1774 ret = fork();
1775 }
1776 return ret;
1777 }
1778
1779 static long do_fcntl(int fd, int cmd, target_ulong arg)
1780 {
1781 struct flock fl;
1782 struct target_flock *target_fl;
1783 struct flock64 fl64;
1784 struct target_flock64 *target_fl64;
1785 long ret;
1786
1787 switch(cmd) {
1788 case TARGET_F_GETLK:
1789 ret = fcntl(fd, cmd, &fl);
1790 if (ret == 0) {
1791 lock_user_struct(target_fl, arg, 0);
1792 target_fl->l_type = tswap16(fl.l_type);
1793 target_fl->l_whence = tswap16(fl.l_whence);
1794 target_fl->l_start = tswapl(fl.l_start);
1795 target_fl->l_len = tswapl(fl.l_len);
1796 target_fl->l_pid = tswapl(fl.l_pid);
1797 unlock_user_struct(target_fl, arg, 1);
1798 }
1799 break;
1800
1801 case TARGET_F_SETLK:
1802 case TARGET_F_SETLKW:
1803 lock_user_struct(target_fl, arg, 1);
1804 fl.l_type = tswap16(target_fl->l_type);
1805 fl.l_whence = tswap16(target_fl->l_whence);
1806 fl.l_start = tswapl(target_fl->l_start);
1807 fl.l_len = tswapl(target_fl->l_len);
1808 fl.l_pid = tswapl(target_fl->l_pid);
1809 unlock_user_struct(target_fl, arg, 0);
1810 ret = fcntl(fd, cmd, &fl);
1811 break;
1812
1813 case TARGET_F_GETLK64:
1814 ret = fcntl(fd, cmd >> 1, &fl64);
1815 if (ret == 0) {
1816 lock_user_struct(target_fl64, arg, 0);
1817 target_fl64->l_type = tswap16(fl64.l_type) >> 1;
1818 target_fl64->l_whence = tswap16(fl64.l_whence);
1819 target_fl64->l_start = tswapl(fl64.l_start);
1820 target_fl64->l_len = tswapl(fl64.l_len);
1821 target_fl64->l_pid = tswapl(fl64.l_pid);
1822 unlock_user_struct(target_fl64, arg, 1);
1823 }
1824 break;
1825 case TARGET_F_SETLK64:
1826 case TARGET_F_SETLKW64:
1827 lock_user_struct(target_fl64, arg, 1);
1828 fl64.l_type = tswap16(target_fl64->l_type) >> 1;
1829 fl64.l_whence = tswap16(target_fl64->l_whence);
1830 fl64.l_start = tswapl(target_fl64->l_start);
1831 fl64.l_len = tswapl(target_fl64->l_len);
1832 fl64.l_pid = tswap16(target_fl64->l_pid);
1833 unlock_user_struct(target_fl64, arg, 0);
1834 ret = fcntl(fd, cmd >> 1, &fl64);
1835 break;
1836
1837 case F_GETFL:
1838 ret = fcntl(fd, cmd, arg);
1839 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1840 break;
1841
1842 case F_SETFL:
1843 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1844 break;
1845
1846 default:
1847 ret = fcntl(fd, cmd, arg);
1848 break;
1849 }
1850 return ret;
1851 }
1852
1853 #ifdef USE_UID16
1854
1855 static inline int high2lowuid(int uid)
1856 {
1857 if (uid > 65535)
1858 return 65534;
1859 else
1860 return uid;
1861 }
1862
1863 static inline int high2lowgid(int gid)
1864 {
1865 if (gid > 65535)
1866 return 65534;
1867 else
1868 return gid;
1869 }
1870
1871 static inline int low2highuid(int uid)
1872 {
1873 if ((int16_t)uid == -1)
1874 return -1;
1875 else
1876 return uid;
1877 }
1878
1879 static inline int low2highgid(int gid)
1880 {
1881 if ((int16_t)gid == -1)
1882 return -1;
1883 else
1884 return gid;
1885 }
1886
1887 #endif /* USE_UID16 */
1888
1889 void syscall_init(void)
1890 {
1891 IOCTLEntry *ie;
1892 const argtype *arg_type;
1893 int size;
1894
1895 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1896 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1897 #include "syscall_types.h"
1898 #undef STRUCT
1899 #undef STRUCT_SPECIAL
1900
1901 /* we patch the ioctl size if necessary. We rely on the fact that
1902 no ioctl has all the bits at '1' in the size field */
1903 ie = ioctl_entries;
1904 while (ie->target_cmd != 0) {
1905 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1906 TARGET_IOC_SIZEMASK) {
1907 arg_type = ie->arg_type;
1908 if (arg_type[0] != TYPE_PTR) {
1909 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1910 ie->target_cmd);
1911 exit(1);
1912 }
1913 arg_type++;
1914 size = thunk_type_size(arg_type, 0);
1915 ie->target_cmd = (ie->target_cmd &
1916 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1917 (size << TARGET_IOC_SIZESHIFT);
1918 }
1919 /* automatic consistency check if same arch */
1920 #if defined(__i386__) && defined(TARGET_I386)
1921 if (ie->target_cmd != ie->host_cmd) {
1922 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1923 ie->target_cmd, ie->host_cmd);
1924 }
1925 #endif
1926 ie++;
1927 }
1928 }
1929
1930 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1931 {
1932 #ifdef TARGET_WORDS_BIG_ENDIAN
1933 return ((uint64_t)word0 << 32) | word1;
1934 #else
1935 return ((uint64_t)word1 << 32) | word0;
1936 #endif
1937 }
1938
1939 #ifdef TARGET_NR_truncate64
1940 static inline long target_truncate64(void *cpu_env, const char *arg1,
1941 long arg2, long arg3, long arg4)
1942 {
1943 #ifdef TARGET_ARM
1944 if (((CPUARMState *)cpu_env)->eabi)
1945 {
1946 arg2 = arg3;
1947 arg3 = arg4;
1948 }
1949 #endif
1950 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1951 }
1952 #endif
1953
1954 #ifdef TARGET_NR_ftruncate64
1955 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1956 long arg3, long arg4)
1957 {
1958 #ifdef TARGET_ARM
1959 if (((CPUARMState *)cpu_env)->eabi)
1960 {
1961 arg2 = arg3;
1962 arg3 = arg4;
1963 }
1964 #endif
1965 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1966 }
1967 #endif
1968
1969 static inline void target_to_host_timespec(struct timespec *host_ts,
1970 target_ulong target_addr)
1971 {
1972 struct target_timespec *target_ts;
1973
1974 lock_user_struct(target_ts, target_addr, 1);
1975 host_ts->tv_sec = tswapl(target_ts->tv_sec);
1976 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1977 unlock_user_struct(target_ts, target_addr, 0);
1978 }
1979
1980 static inline void host_to_target_timespec(target_ulong target_addr,
1981 struct timespec *host_ts)
1982 {
1983 struct target_timespec *target_ts;
1984
1985 lock_user_struct(target_ts, target_addr, 0);
1986 target_ts->tv_sec = tswapl(host_ts->tv_sec);
1987 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
1988 unlock_user_struct(target_ts, target_addr, 1);
1989 }
1990
1991 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1992 long arg4, long arg5, long arg6)
1993 {
1994 long ret;
1995 struct stat st;
1996 struct statfs stfs;
1997 void *p;
1998
1999 #ifdef DEBUG
2000 gemu_log("syscall %d", num);
2001 #endif
2002 switch(num) {
2003 case TARGET_NR_exit:
2004 #ifdef HAVE_GPROF
2005 _mcleanup();
2006 #endif
2007 gdb_exit(cpu_env, arg1);
2008 /* XXX: should free thread stack and CPU env */
2009 _exit(arg1);
2010 ret = 0; /* avoid warning */
2011 break;
2012 case TARGET_NR_read:
2013 page_unprotect_range(arg2, arg3);
2014 p = lock_user(arg2, arg3, 0);
2015 ret = get_errno(read(arg1, p, arg3));
2016 unlock_user(p, arg2, ret);
2017 break;
2018 case TARGET_NR_write:
2019 p = lock_user(arg2, arg3, 1);
2020 ret = get_errno(write(arg1, p, arg3));
2021 unlock_user(p, arg2, 0);
2022 break;
2023 case TARGET_NR_open:
2024 p = lock_user_string(arg1);
2025 ret = get_errno(open(path(p),
2026 target_to_host_bitmask(arg2, fcntl_flags_tbl),
2027 arg3));
2028 unlock_user(p, arg1, 0);
2029 break;
2030 case TARGET_NR_close:
2031 ret = get_errno(close(arg1));
2032 break;
2033 case TARGET_NR_brk:
2034 ret = do_brk(arg1);
2035 break;
2036 case TARGET_NR_fork:
2037 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
2038 break;
2039 case TARGET_NR_waitpid:
2040 {
2041 int status;
2042 ret = get_errno(waitpid(arg1, &status, arg3));
2043 if (!is_error(ret) && arg2)
2044 tput32(arg2, status);
2045 }
2046 break;
2047 case TARGET_NR_creat:
2048 p = lock_user_string(arg1);
2049 ret = get_errno(creat(p, arg2));
2050 unlock_user(p, arg1, 0);
2051 break;
2052 case TARGET_NR_link:
2053 {
2054 void * p2;
2055 p = lock_user_string(arg1);
2056 p2 = lock_user_string(arg2);
2057 ret = get_errno(link(p, p2));
2058 unlock_user(p2, arg2, 0);
2059 unlock_user(p, arg1, 0);
2060 }
2061 break;
2062 case TARGET_NR_unlink:
2063 p = lock_user_string(arg1);
2064 ret = get_errno(unlink(p));
2065 unlock_user(p, arg1, 0);
2066 break;
2067 case TARGET_NR_execve:
2068 {
2069 char **argp, **envp;
2070 int argc, envc;
2071 target_ulong gp;
2072 target_ulong guest_argp;
2073 target_ulong guest_envp;
2074 target_ulong addr;
2075 char **q;
2076
2077 argc = 0;
2078 guest_argp = arg2;
2079 for (gp = guest_argp; tgetl(gp); gp++)
2080 argc++;
2081 envc = 0;
2082 guest_envp = arg3;
2083 for (gp = guest_envp; tgetl(gp); gp++)
2084 envc++;
2085
2086 argp = alloca((argc + 1) * sizeof(void *));
2087 envp = alloca((envc + 1) * sizeof(void *));
2088
2089 for (gp = guest_argp, q = argp; ;
2090 gp += sizeof(target_ulong), q++) {
2091 addr = tgetl(gp);
2092 if (!addr)
2093 break;
2094 *q = lock_user_string(addr);
2095 }
2096 *q = NULL;
2097
2098 for (gp = guest_envp, q = envp; ;
2099 gp += sizeof(target_ulong), q++) {
2100 addr = tgetl(gp);
2101 if (!addr)
2102 break;
2103 *q = lock_user_string(addr);
2104 }
2105 *q = NULL;
2106
2107 p = lock_user_string(arg1);
2108 ret = get_errno(execve(p, argp, envp));
2109 unlock_user(p, arg1, 0);
2110
2111 for (gp = guest_argp, q = argp; *q;
2112 gp += sizeof(target_ulong), q++) {
2113 addr = tgetl(gp);
2114 unlock_user(*q, addr, 0);
2115 }
2116 for (gp = guest_envp, q = envp; *q;
2117 gp += sizeof(target_ulong), q++) {
2118 addr = tgetl(gp);
2119 unlock_user(*q, addr, 0);
2120 }
2121 }
2122 break;
2123 case TARGET_NR_chdir:
2124 p = lock_user_string(arg1);
2125 ret = get_errno(chdir(p));
2126 unlock_user(p, arg1, 0);
2127 break;
2128 #ifdef TARGET_NR_time
2129 case TARGET_NR_time:
2130 {
2131 time_t host_time;
2132 ret = get_errno(time(&host_time));
2133 if (!is_error(ret) && arg1)
2134 tputl(arg1, host_time);
2135 }
2136 break;
2137 #endif
2138 case TARGET_NR_mknod:
2139 p = lock_user_string(arg1);
2140 ret = get_errno(mknod(p, arg2, arg3));
2141 unlock_user(p, arg1, 0);
2142 break;
2143 case TARGET_NR_chmod:
2144 p = lock_user_string(arg1);
2145 ret = get_errno(chmod(p, arg2));
2146 unlock_user(p, arg1, 0);
2147 break;
2148 #ifdef TARGET_NR_break
2149 case TARGET_NR_break:
2150 goto unimplemented;
2151 #endif
2152 #ifdef TARGET_NR_oldstat
2153 case TARGET_NR_oldstat:
2154 goto unimplemented;
2155 #endif
2156 case TARGET_NR_lseek:
2157 ret = get_errno(lseek(arg1, arg2, arg3));
2158 break;
2159 case TARGET_NR_getpid:
2160 ret = get_errno(getpid());
2161 break;
2162 case TARGET_NR_mount:
2163 /* need to look at the data field */
2164 goto unimplemented;
2165 case TARGET_NR_umount:
2166 p = lock_user_string(arg1);
2167 ret = get_errno(umount(p));
2168 unlock_user(p, arg1, 0);
2169 break;
2170 case TARGET_NR_stime:
2171 {
2172 time_t host_time;
2173 host_time = tgetl(arg1);
2174 ret = get_errno(stime(&host_time));
2175 }
2176 break;
2177 case TARGET_NR_ptrace:
2178 goto unimplemented;
2179 case TARGET_NR_alarm:
2180 ret = alarm(arg1);
2181 break;
2182 #ifdef TARGET_NR_oldfstat
2183 case TARGET_NR_oldfstat:
2184 goto unimplemented;
2185 #endif
2186 case TARGET_NR_pause:
2187 ret = get_errno(pause());
2188 break;
2189 case TARGET_NR_utime:
2190 {
2191 struct utimbuf tbuf, *host_tbuf;
2192 struct target_utimbuf *target_tbuf;
2193 if (arg2) {
2194 lock_user_struct(target_tbuf, arg2, 1);
2195 tbuf.actime = tswapl(target_tbuf->actime);
2196 tbuf.modtime = tswapl(target_tbuf->modtime);
2197 unlock_user_struct(target_tbuf, arg2, 0);
2198 host_tbuf = &tbuf;
2199 } else {
2200 host_tbuf = NULL;
2201 }
2202 p = lock_user_string(arg1);
2203 ret = get_errno(utime(p, host_tbuf));
2204 unlock_user(p, arg1, 0);
2205 }
2206 break;
2207 case TARGET_NR_utimes:
2208 {
2209 struct timeval *tvp, tv[2];
2210 if (arg2) {
2211 target_to_host_timeval(&tv[0], arg2);
2212 target_to_host_timeval(&tv[1],
2213 arg2 + sizeof (struct target_timeval));
2214 tvp = tv;
2215 } else {
2216 tvp = NULL;
2217 }
2218 p = lock_user_string(arg1);
2219 ret = get_errno(utimes(p, tvp));
2220 unlock_user(p, arg1, 0);
2221 }
2222 break;
2223 #ifdef TARGET_NR_stty
2224 case TARGET_NR_stty:
2225 goto unimplemented;
2226 #endif
2227 #ifdef TARGET_NR_gtty
2228 case TARGET_NR_gtty:
2229 goto unimplemented;
2230 #endif
2231 case TARGET_NR_access:
2232 p = lock_user_string(arg1);
2233 ret = get_errno(access(p, arg2));
2234 unlock_user(p, arg1, 0);
2235 break;
2236 case TARGET_NR_nice:
2237 ret = get_errno(nice(arg1));
2238 break;
2239 #ifdef TARGET_NR_ftime
2240 case TARGET_NR_ftime:
2241 goto unimplemented;
2242 #endif
2243 case TARGET_NR_sync:
2244 sync();
2245 ret = 0;
2246 break;
2247 case TARGET_NR_kill:
2248 ret = get_errno(kill(arg1, arg2));
2249 break;
2250 case TARGET_NR_rename:
2251 {
2252 void *p2;
2253 p = lock_user_string(arg1);
2254 p2 = lock_user_string(arg2);
2255 ret = get_errno(rename(p, p2));
2256 unlock_user(p2, arg2, 0);
2257 unlock_user(p, arg1, 0);
2258 }
2259 break;
2260 case TARGET_NR_mkdir:
2261 p = lock_user_string(arg1);
2262 ret = get_errno(mkdir(p, arg2));
2263 unlock_user(p, arg1, 0);
2264 break;
2265 case TARGET_NR_rmdir:
2266 p = lock_user_string(arg1);
2267 ret = get_errno(rmdir(p));
2268 unlock_user(p, arg1, 0);
2269 break;
2270 case TARGET_NR_dup:
2271 ret = get_errno(dup(arg1));
2272 break;
2273 case TARGET_NR_pipe:
2274 {
2275 int host_pipe[2];
2276 ret = get_errno(pipe(host_pipe));
2277 if (!is_error(ret)) {
2278 tput32(arg1, host_pipe[0]);
2279 tput32(arg1 + 4, host_pipe[1]);
2280 }
2281 }
2282 break;
2283 case TARGET_NR_times:
2284 {
2285 struct target_tms *tmsp;
2286 struct tms tms;
2287 ret = get_errno(times(&tms));
2288 if (arg1) {
2289 tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2290 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2291 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2292 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2293 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2294 }
2295 if (!is_error(ret))
2296 ret = host_to_target_clock_t(ret);
2297 }
2298 break;
2299 #ifdef TARGET_NR_prof
2300 case TARGET_NR_prof:
2301 goto unimplemented;
2302 #endif
2303 case TARGET_NR_signal:
2304 goto unimplemented;
2305
2306 case TARGET_NR_acct:
2307 p = lock_user_string(arg1);
2308 ret = get_errno(acct(path(p)));
2309 unlock_user(p, arg1, 0);
2310 break;
2311 case TARGET_NR_umount2:
2312 p = lock_user_string(arg1);
2313 ret = get_errno(umount2(p, arg2));
2314 unlock_user(p, arg1, 0);
2315 break;
2316 #ifdef TARGET_NR_lock
2317 case TARGET_NR_lock:
2318 goto unimplemented;
2319 #endif
2320 case TARGET_NR_ioctl:
2321 ret = do_ioctl(arg1, arg2, arg3);
2322 break;
2323 case TARGET_NR_fcntl:
2324 ret = get_errno(do_fcntl(arg1, arg2, arg3));
2325 break;
2326 #ifdef TARGET_NR_mpx
2327 case TARGET_NR_mpx:
2328 goto unimplemented;
2329 #endif
2330 case TARGET_NR_setpgid:
2331 ret = get_errno(setpgid(arg1, arg2));
2332 break;
2333 #ifdef TARGET_NR_ulimit
2334 case TARGET_NR_ulimit:
2335 goto unimplemented;
2336 #endif
2337 #ifdef TARGET_NR_oldolduname
2338 case TARGET_NR_oldolduname:
2339 goto unimplemented;
2340 #endif
2341 case TARGET_NR_umask:
2342 ret = get_errno(umask(arg1));
2343 break;
2344 case TARGET_NR_chroot:
2345 p = lock_user_string(arg1);
2346 ret = get_errno(chroot(p));
2347 unlock_user(p, arg1, 0);
2348 break;
2349 case TARGET_NR_ustat:
2350 goto unimplemented;
2351 case TARGET_NR_dup2:
2352 ret = get_errno(dup2(arg1, arg2));
2353 break;
2354 case TARGET_NR_getppid:
2355 ret = get_errno(getppid());
2356 break;
2357 case TARGET_NR_getpgrp:
2358 ret = get_errno(getpgrp());
2359 break;
2360 case TARGET_NR_setsid:
2361 ret = get_errno(setsid());
2362 break;
2363 case TARGET_NR_sigaction:
2364 {
2365 #if !defined(TARGET_MIPS)
2366 struct target_old_sigaction *old_act;
2367 struct target_sigaction act, oact, *pact;
2368 if (arg2) {
2369 lock_user_struct(old_act, arg2, 1);
2370 act._sa_handler = old_act->_sa_handler;
2371 target_siginitset(&act.sa_mask, old_act->sa_mask);
2372 act.sa_flags = old_act->sa_flags;
2373 act.sa_restorer = old_act->sa_restorer;
2374 unlock_user_struct(old_act, arg2, 0);
2375 pact = &act;
2376 } else {
2377 pact = NULL;
2378 }
2379 ret = get_errno(do_sigaction(arg1, pact, &oact));
2380 if (!is_error(ret) && arg3) {
2381 lock_user_struct(old_act, arg3, 0);
2382 old_act->_sa_handler = oact._sa_handler;
2383 old_act->sa_mask = oact.sa_mask.sig[0];
2384 old_act->sa_flags = oact.sa_flags;
2385 old_act->sa_restorer = oact.sa_restorer;
2386 unlock_user_struct(old_act, arg3, 1);
2387 }
2388 #else
2389 struct target_sigaction act, oact, *pact, *old_act;
2390
2391 if (arg2) {
2392 lock_user_struct(old_act, arg2, 1);
2393 act._sa_handler = old_act->_sa_handler;
2394 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
2395 act.sa_flags = old_act->sa_flags;
2396 unlock_user_struct(old_act, arg2, 0);
2397 pact = &act;
2398 } else {
2399 pact = NULL;
2400 }
2401
2402 ret = get_errno(do_sigaction(arg1, pact, &oact));
2403
2404 if (!is_error(ret) && arg3) {
2405 lock_user_struct(old_act, arg3, 0);
2406 old_act->_sa_handler = oact._sa_handler;
2407 old_act->sa_flags = oact.sa_flags;
2408 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
2409 old_act->sa_mask.sig[1] = 0;
2410 old_act->sa_mask.sig[2] = 0;
2411 old_act->sa_mask.sig[3] = 0;
2412 unlock_user_struct(old_act, arg3, 1);
2413 }
2414 #endif
2415 }
2416 break;
2417 case TARGET_NR_rt_sigaction:
2418 {
2419 struct target_sigaction *act;
2420 struct target_sigaction *oact;
2421
2422 if (arg2)
2423 lock_user_struct(act, arg2, 1);
2424 else
2425 act = NULL;
2426 if (arg3)
2427 lock_user_struct(oact, arg3, 0);
2428 else
2429 oact = NULL;
2430 ret = get_errno(do_sigaction(arg1, act, oact));
2431 if (arg2)
2432 unlock_user_struct(act, arg2, 0);
2433 if (arg3)
2434 unlock_user_struct(oact, arg3, 1);
2435 }
2436 break;
2437 case TARGET_NR_sgetmask:
2438 {
2439 sigset_t cur_set;
2440 target_ulong target_set;
2441 sigprocmask(0, NULL, &cur_set);
2442 host_to_target_old_sigset(&target_set, &cur_set);
2443 ret = target_set;
2444 }
2445 break;
2446 case TARGET_NR_ssetmask:
2447 {
2448 sigset_t set, oset, cur_set;
2449 target_ulong target_set = arg1;
2450 sigprocmask(0, NULL, &cur_set);
2451 target_to_host_old_sigset(&set, &target_set);
2452 sigorset(&set, &set, &cur_set);
2453 sigprocmask(SIG_SETMASK, &set, &oset);
2454 host_to_target_old_sigset(&target_set, &oset);
2455 ret = target_set;
2456 }
2457 break;
2458 case TARGET_NR_sigprocmask:
2459 {
2460 int how = arg1;
2461 sigset_t set, oldset, *set_ptr;
2462
2463 if (arg2) {
2464 switch(how) {
2465 case TARGET_SIG_BLOCK:
2466 how = SIG_BLOCK;
2467 break;
2468 case TARGET_SIG_UNBLOCK:
2469 how = SIG_UNBLOCK;
2470 break;
2471 case TARGET_SIG_SETMASK:
2472 how = SIG_SETMASK;
2473 break;
2474 default:
2475 ret = -EINVAL;
2476 goto fail;
2477 }
2478 p = lock_user(arg2, sizeof(target_sigset_t), 1);
2479 target_to_host_old_sigset(&set, p);
2480 unlock_user(p, arg2, 0);
2481 set_ptr = &set;
2482 } else {
2483 how = 0;
2484 set_ptr = NULL;
2485 }
2486 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2487 if (!is_error(ret) && arg3) {
2488 p = lock_user(arg3, sizeof(target_sigset_t), 0);
2489 host_to_target_old_sigset(p, &oldset);
2490 unlock_user(p, arg3, sizeof(target_sigset_t));
2491 }
2492 }
2493 break;
2494 case TARGET_NR_rt_sigprocmask:
2495 {
2496 int how = arg1;
2497 sigset_t set, oldset, *set_ptr;
2498
2499 if (arg2) {
2500 switch(how) {
2501 case TARGET_SIG_BLOCK:
2502 how = SIG_BLOCK;
2503 break;
2504 case TARGET_SIG_UNBLOCK:
2505 how = SIG_UNBLOCK;
2506 break;
2507 case TARGET_SIG_SETMASK:
2508 how = SIG_SETMASK;
2509 break;
2510 default:
2511 ret = -EINVAL;
2512 goto fail;
2513 }
2514 p = lock_user(arg2, sizeof(target_sigset_t), 1);
2515 target_to_host_sigset(&set, p);
2516 unlock_user(p, arg2, 0);
2517 set_ptr = &set;
2518 } else {
2519 how = 0;
2520 set_ptr = NULL;
2521 }
2522 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2523 if (!is_error(ret) && arg3) {
2524 p = lock_user(arg3, sizeof(target_sigset_t), 0);
2525 host_to_target_sigset(p, &oldset);
2526 unlock_user(p, arg3, sizeof(target_sigset_t));
2527 }
2528 }
2529 break;
2530 case TARGET_NR_sigpending:
2531 {
2532 sigset_t set;
2533 ret = get_errno(sigpending(&set));
2534 if (!is_error(ret)) {
2535 p = lock_user(arg1, sizeof(target_sigset_t), 0);
2536 host_to_target_old_sigset(p, &set);
2537 unlock_user(p, arg1, sizeof(target_sigset_t));
2538 }
2539 }
2540 break;
2541 case TARGET_NR_rt_sigpending:
2542 {
2543 sigset_t set;
2544 ret = get_errno(sigpending(&set));
2545 if (!is_error(ret)) {
2546 p = lock_user(arg1, sizeof(target_sigset_t), 0);
2547 host_to_target_sigset(p, &set);
2548 unlock_user(p, arg1, sizeof(target_sigset_t));
2549 }
2550 }
2551 break;
2552 case TARGET_NR_sigsuspend:
2553 {
2554 sigset_t set;
2555 p = lock_user(arg1, sizeof(target_sigset_t), 1);
2556 target_to_host_old_sigset(&set, p);
2557 unlock_user(p, arg1, 0);
2558 ret = get_errno(sigsuspend(&set));
2559 }
2560 break;
2561 case TARGET_NR_rt_sigsuspend:
2562 {
2563 sigset_t set;
2564 p = lock_user(arg1, sizeof(target_sigset_t), 1);
2565 target_to_host_sigset(&set, p);
2566 unlock_user(p, arg1, 0);
2567 ret = get_errno(sigsuspend(&set));
2568 }
2569 break;
2570 case TARGET_NR_rt_sigtimedwait:
2571 {
2572 sigset_t set;
2573 struct timespec uts, *puts;
2574 siginfo_t uinfo;
2575
2576 p = lock_user(arg1, sizeof(target_sigset_t), 1);
2577 target_to_host_sigset(&set, p);
2578 unlock_user(p, arg1, 0);
2579 if (arg3) {
2580 puts = &uts;
2581 target_to_host_timespec(puts, arg3);
2582 } else {
2583 puts = NULL;
2584 }
2585 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2586 if (!is_error(ret) && arg2) {
2587 p = lock_user(arg2, sizeof(target_sigset_t), 0);
2588 host_to_target_siginfo(p, &uinfo);
2589 unlock_user(p, arg2, sizeof(target_sigset_t));
2590 }
2591 }
2592 break;
2593 case TARGET_NR_rt_sigqueueinfo:
2594 {
2595 siginfo_t uinfo;
2596 p = lock_user(arg3, sizeof(target_sigset_t), 1);
2597 target_to_host_siginfo(&uinfo, p);
2598 unlock_user(p, arg1, 0);
2599 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2600 }
2601 break;
2602 case TARGET_NR_sigreturn:
2603 /* NOTE: ret is eax, so not transcoding must be done */
2604 ret = do_sigreturn(cpu_env);
2605 break;
2606 case TARGET_NR_rt_sigreturn:
2607 /* NOTE: ret is eax, so not transcoding must be done */
2608 ret = do_rt_sigreturn(cpu_env);
2609 break;
2610 case TARGET_NR_sethostname:
2611 p = lock_user_string(arg1);
2612 ret = get_errno(sethostname(p, arg2));
2613 unlock_user(p, arg1, 0);
2614 break;
2615 case TARGET_NR_setrlimit:
2616 {
2617 /* XXX: convert resource ? */
2618 int resource = arg1;
2619 struct target_rlimit *target_rlim;
2620 struct rlimit rlim;
2621 lock_user_struct(target_rlim, arg2, 1);
2622 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2623 rlim.rlim_max = tswapl(target_rlim->rlim_max);
2624 unlock_user_struct(target_rlim, arg2, 0);
2625 ret = get_errno(setrlimit(resource, &rlim));
2626 }
2627 break;
2628 case TARGET_NR_getrlimit:
2629 {
2630 /* XXX: convert resource ? */
2631 int resource = arg1;
2632 struct target_rlimit *target_rlim;
2633 struct rlimit rlim;
2634
2635 ret = get_errno(getrlimit(resource, &rlim));
2636 if (!is_error(ret)) {
2637 lock_user_struct(target_rlim, arg2, 0);
2638 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2639 rlim.rlim_max = tswapl(target_rlim->rlim_max);
2640 unlock_user_struct(target_rlim, arg2, 1);
2641 }
2642 }
2643 break;
2644 case TARGET_NR_getrusage:
2645 {
2646 struct rusage rusage;
2647 ret = get_errno(getrusage(arg1, &rusage));
2648 if (!is_error(ret)) {
2649 host_to_target_rusage(arg2, &rusage);
2650 }
2651 }
2652 break;
2653 case TARGET_NR_gettimeofday:
2654 {
2655 struct timeval tv;
2656 ret = get_errno(gettimeofday(&tv, NULL));
2657 if (!is_error(ret)) {
2658 host_to_target_timeval(arg1, &tv);
2659 }
2660 }
2661 break;
2662 case TARGET_NR_settimeofday:
2663 {
2664 struct timeval tv;
2665 target_to_host_timeval(&tv, arg1);
2666 ret = get_errno(settimeofday(&tv, NULL));
2667 }
2668 break;
2669 #ifdef TARGET_NR_select
2670 case TARGET_NR_select:
2671 {
2672 struct target_sel_arg_struct *sel;
2673 target_ulong inp, outp, exp, tvp;
2674 long nsel;
2675
2676 lock_user_struct(sel, arg1, 1);
2677 nsel = tswapl(sel->n);
2678 inp = tswapl(sel->inp);
2679 outp = tswapl(sel->outp);
2680 exp = tswapl(sel->exp);
2681 tvp = tswapl(sel->tvp);
2682 unlock_user_struct(sel, arg1, 0);
2683 ret = do_select(nsel, inp, outp, exp, tvp);
2684 }
2685 break;
2686 #endif
2687 case TARGET_NR_symlink:
2688 {
2689 void *p2;
2690 p = lock_user_string(arg1);
2691 p2 = lock_user_string(arg2);
2692 ret = get_errno(symlink(p, p2));
2693 unlock_user(p2, arg2, 0);
2694 unlock_user(p, arg1, 0);
2695 }
2696 break;
2697 #ifdef TARGET_NR_oldlstat
2698 case TARGET_NR_oldlstat:
2699 goto unimplemented;
2700 #endif
2701 case TARGET_NR_readlink:
2702 {
2703 void *p2;
2704 p = lock_user_string(arg1);
2705 p2 = lock_user(arg2, arg3, 0);
2706 ret = get_errno(readlink(path(p), p2, arg3));
2707 unlock_user(p2, arg2, ret);
2708 unlock_user(p, arg1, 0);
2709 }
2710 break;
2711 case TARGET_NR_uselib:
2712 goto unimplemented;
2713 case TARGET_NR_swapon:
2714 p = lock_user_string(arg1);
2715 ret = get_errno(swapon(p, arg2));
2716 unlock_user(p, arg1, 0);
2717 break;
2718 case TARGET_NR_reboot:
2719 goto unimplemented;
2720 case TARGET_NR_readdir:
2721 goto unimplemented;
2722 case TARGET_NR_mmap:
2723 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
2724 {
2725 target_ulong *v;
2726 target_ulong v1, v2, v3, v4, v5, v6;
2727 v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2728 v1 = tswapl(v[0]);
2729 v2 = tswapl(v[1]);
2730 v3 = tswapl(v[2]);
2731 v4 = tswapl(v[3]);
2732 v5 = tswapl(v[4]);
2733 v6 = tswapl(v[5]);
2734 unlock_user(v, arg1, 0);
2735 ret = get_errno(target_mmap(v1, v2, v3,
2736 target_to_host_bitmask(v4, mmap_flags_tbl),
2737 v5, v6));
2738 }
2739 #else
2740 ret = get_errno(target_mmap(arg1, arg2, arg3,
2741 target_to_host_bitmask(arg4, mmap_flags_tbl),
2742 arg5,
2743 arg6));
2744 #endif
2745 break;
2746 #ifdef TARGET_NR_mmap2
2747 case TARGET_NR_mmap2:
2748 #if defined(TARGET_SPARC) || defined(TARGET_MIPS)
2749 #define MMAP_SHIFT 12
2750 #else
2751 #define MMAP_SHIFT TARGET_PAGE_BITS
2752 #endif
2753 ret = get_errno(target_mmap(arg1, arg2, arg3,
2754 target_to_host_bitmask(arg4, mmap_flags_tbl),
2755 arg5,
2756 arg6 << MMAP_SHIFT));
2757 break;
2758 #endif
2759 case TARGET_NR_munmap:
2760 ret = get_errno(target_munmap(arg1, arg2));
2761 break;
2762 case TARGET_NR_mprotect:
2763 ret = get_errno(target_mprotect(arg1, arg2, arg3));
2764 break;
2765 case TARGET_NR_mremap:
2766 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2767 break;
2768 /* ??? msync/mlock/munlock are broken for softmmu. */
2769 case TARGET_NR_msync:
2770 ret = get_errno(msync(g2h(arg1), arg2, arg3));
2771 break;
2772 case TARGET_NR_mlock:
2773 ret = get_errno(mlock(g2h(arg1), arg2));
2774 break;
2775 case TARGET_NR_munlock:
2776 ret = get_errno(munlock(g2h(arg1), arg2));
2777 break;
2778 case TARGET_NR_mlockall:
2779 ret = get_errno(mlockall(arg1));
2780 break;
2781 case TARGET_NR_munlockall:
2782 ret = get_errno(munlockall());
2783 break;
2784 case TARGET_NR_truncate:
2785 p = lock_user_string(arg1);
2786 ret = get_errno(truncate(p, arg2));
2787 unlock_user(p, arg1, 0);
2788 break;
2789 case TARGET_NR_ftruncate:
2790 ret = get_errno(ftruncate(arg1, arg2));
2791 break;
2792 case TARGET_NR_fchmod:
2793 ret = get_errno(fchmod(arg1, arg2));
2794 break;
2795 case TARGET_NR_getpriority:
2796 ret = get_errno(getpriority(arg1, arg2));
2797 break;
2798 case TARGET_NR_setpriority:
2799 ret = get_errno(setpriority(arg1, arg2, arg3));
2800 break;
2801 #ifdef TARGET_NR_profil
2802 case TARGET_NR_profil:
2803 goto unimplemented;
2804 #endif
2805 case TARGET_NR_statfs:
2806 p = lock_user_string(arg1);
2807 ret = get_errno(statfs(path(p), &stfs));
2808 unlock_user(p, arg1, 0);
2809 convert_statfs:
2810 if (!is_error(ret)) {
2811 struct target_statfs *target_stfs;
2812
2813 lock_user_struct(target_stfs, arg2, 0);
2814 /* ??? put_user is probably wrong. */
2815 put_user(stfs.f_type, &target_stfs->f_type);
2816 put_user(stfs.f_bsize, &target_stfs->f_bsize);
2817 put_user(stfs.f_blocks, &target_stfs->f_blocks);
2818 put_user(stfs.f_bfree, &target_stfs->f_bfree);
2819 put_user(stfs.f_bavail, &target_stfs->f_bavail);
2820 put_user(stfs.f_files, &target_stfs->f_files);
2821 put_user(stfs.f_ffree, &target_stfs->f_ffree);
2822 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2823 put_user(stfs.f_namelen, &target_stfs->f_namelen);
2824 unlock_user_struct(target_stfs, arg2, 1);
2825 }
2826 break;
2827 case TARGET_NR_fstatfs:
2828 ret = get_errno(fstatfs(arg1, &stfs));
2829 goto convert_statfs;
2830 #ifdef TARGET_NR_statfs64
2831 case TARGET_NR_statfs64:
2832 p = lock_user_string(arg1);
2833 ret = get_errno(statfs(path(p), &stfs));
2834 unlock_user(p, arg1, 0);
2835 convert_statfs64:
2836 if (!is_error(ret)) {
2837 struct target_statfs64 *target_stfs;
2838
2839 lock_user_struct(target_stfs, arg3, 0);
2840 /* ??? put_user is probably wrong. */
2841 put_user(stfs.f_type, &target_stfs->f_type);
2842 put_user(stfs.f_bsize, &target_stfs->f_bsize);
2843 put_user(stfs.f_blocks, &target_stfs->f_blocks);
2844 put_user(stfs.f_bfree, &target_stfs->f_bfree);
2845 put_user(stfs.f_bavail, &target_stfs->f_bavail);
2846 put_user(stfs.f_files, &target_stfs->f_files);
2847 put_user(stfs.f_ffree, &target_stfs->f_ffree);
2848 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2849 put_user(stfs.f_namelen, &target_stfs->f_namelen);
2850 unlock_user_struct(target_stfs, arg3, 0);
2851 }
2852 break;
2853 case TARGET_NR_fstatfs64:
2854 ret = get_errno(fstatfs(arg1, &stfs));
2855 goto convert_statfs64;
2856 #endif
2857 #ifdef TARGET_NR_ioperm
2858 case TARGET_NR_ioperm:
2859 goto unimplemented;
2860 #endif
2861 case TARGET_NR_socketcall:
2862 ret = do_socketcall(arg1, arg2);
2863 break;
2864
2865 #ifdef TARGET_NR_accept
2866 case TARGET_NR_accept:
2867 ret = do_accept(arg1, arg2, arg3);
2868 break;
2869 #endif
2870 #ifdef TARGET_NR_bind
2871 case TARGET_NR_bind:
2872 ret = do_bind(arg1, arg2, arg3);
2873 break;
2874 #endif
2875 #ifdef TARGET_NR_connect
2876 case TARGET_NR_connect:
2877 ret = do_connect(arg1, arg2, arg3);
2878 break;
2879 #endif
2880 #ifdef TARGET_NR_getpeername
2881 case TARGET_NR_getpeername:
2882 ret = do_getpeername(arg1, arg2, arg3);
2883 break;
2884 #endif
2885 #ifdef TARGET_NR_getsockname
2886 case TARGET_NR_getsockname:
2887 ret = do_getsockname(arg1, arg2, arg3);
2888 break;
2889 #endif
2890 #ifdef TARGET_NR_getsockopt
2891 case TARGET_NR_getsockopt:
2892 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
2893 break;
2894 #endif
2895 #ifdef TARGET_NR_listen
2896 case TARGET_NR_listen:
2897 ret = get_errno(listen(arg1, arg2));
2898 break;
2899 #endif
2900 #ifdef TARGET_NR_recv
2901 case TARGET_NR_recv:
2902 ret = do_recvfrom(arg1, arg1, arg3, arg4, 0, 0);
2903 break;
2904 #endif
2905 #ifdef TARGET_NR_recvfrom
2906 case TARGET_NR_recvfrom:
2907 ret = do_recvfrom(arg1, arg1, arg3, arg4, arg5, arg6);
2908 break;
2909 #endif
2910 #ifdef TARGET_NR_recvmsg
2911 case TARGET_NR_recvmsg:
2912 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
2913 break;
2914 #endif
2915 #ifdef TARGET_NR_send
2916 case TARGET_NR_send:
2917 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
2918 break;
2919 #endif
2920 #ifdef TARGET_NR_sendmsg
2921 case TARGET_NR_sendmsg:
2922 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
2923 break;
2924 #endif
2925 #ifdef TARGET_NR_sendto
2926 case TARGET_NR_sendto:
2927 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
2928 break;
2929 #endif
2930 #ifdef TARGET_NR_shutdown
2931 case TARGET_NR_shutdown:
2932 ret = get_errno(shutdown(arg1, arg2));
2933 break;
2934 #endif
2935 #ifdef TARGET_NR_socket
2936 case TARGET_NR_socket:
2937 ret = do_socket(arg1, arg2, arg3);
2938 break;
2939 #endif
2940 #ifdef TARGET_NR_socketpair
2941 case TARGET_NR_socketpair:
2942 ret = do_socketpair(arg1, arg2, arg3, arg4);
2943 break;
2944 #endif
2945 #ifdef TARGET_NR_setsockopt
2946 case TARGET_NR_setsockopt:
2947 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
2948 break;
2949 #endif
2950
2951 case TARGET_NR_syslog:
2952 goto unimplemented;
2953 case TARGET_NR_setitimer:
2954 {
2955 struct itimerval value, ovalue, *pvalue;
2956
2957 if (arg2) {
2958 pvalue = &value;
2959 target_to_host_timeval(&pvalue->it_interval,
2960 arg2);
2961 target_to_host_timeval(&pvalue->it_value,
2962 arg2 + sizeof(struct target_timeval));
2963 } else {
2964 pvalue = NULL;
2965 }
2966 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2967 if (!is_error(ret) && arg3) {
2968 host_to_target_timeval(arg3,
2969 &ovalue.it_interval);
2970 host_to_target_timeval(arg3 + sizeof(struct target_timeval),
2971 &ovalue.it_value);
2972 }
2973 }
2974 break;
2975 case TARGET_NR_getitimer:
2976 {
2977 struct itimerval value;
2978
2979 ret = get_errno(getitimer(arg1, &value));
2980 if (!is_error(ret) && arg2) {
2981 host_to_target_timeval(arg2,
2982 &value.it_interval);
2983 host_to_target_timeval(arg2 + sizeof(struct target_timeval),
2984 &value.it_value);
2985 }
2986 }
2987 break;
2988 case TARGET_NR_stat:
2989 p = lock_user_string(arg1);
2990 ret = get_errno(stat(path(p), &st));
2991 unlock_user(p, arg1, 0);
2992 goto do_stat;
2993 case TARGET_NR_lstat:
2994 p = lock_user_string(arg1);
2995 ret = get_errno(lstat(path(p), &st));
2996 unlock_user(p, arg1, 0);
2997 goto do_stat;
2998 case TARGET_NR_fstat:
2999 {
3000 ret = get_errno(fstat(arg1, &st));
3001 do_stat:
3002 if (!is_error(ret)) {
3003 struct target_stat *target_st;
3004
3005 lock_user_struct(target_st, arg2, 0);
3006 target_st->st_dev = tswap16(st.st_dev);
3007 target_st->st_ino = tswapl(st.st_ino);
3008 #if defined(TARGET_PPC) || defined(TARGET_MIPS)
3009 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
3010 target_st->st_uid = tswap32(st.st_uid);
3011 target_st->st_gid = tswap32(st.st_gid);
3012 #else
3013 target_st->st_mode = tswap16(st.st_mode);
3014 target_st->st_uid = tswap16(st.st_uid);
3015 target_st->st_gid = tswap16(st.st_gid);
3016 #endif
3017 target_st->st_nlink = tswap16(st.st_nlink);
3018 target_st->st_rdev = tswap16(st.st_rdev);
3019 target_st->st_size = tswapl(st.st_size);
3020 target_st->st_blksize = tswapl(st.st_blksize);
3021 target_st->st_blocks = tswapl(st.st_blocks);
3022 target_st->target_st_atime = tswapl(st.st_atime);
3023 target_st->target_st_mtime = tswapl(st.st_mtime);
3024 target_st->target_st_ctime = tswapl(st.st_ctime);
3025 unlock_user_struct(target_st, arg2, 1);
3026 }
3027 }
3028 break;
3029 #ifdef TARGET_NR_olduname
3030 case TARGET_NR_olduname:
3031 goto unimplemented;
3032 #endif
3033 #ifdef TARGET_NR_iopl
3034 case TARGET_NR_iopl:
3035 goto unimplemented;
3036 #endif
3037 case TARGET_NR_vhangup:
3038 ret = get_errno(vhangup());
3039 break;
3040 #ifdef TARGET_NR_idle
3041 case TARGET_NR_idle:
3042 goto unimplemented;
3043 #endif
3044 #ifdef TARGET_NR_syscall
3045 case TARGET_NR_syscall:
3046 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
3047 break;
3048 #endif
3049 case TARGET_NR_wait4:
3050 {
3051 int status;
3052 target_long status_ptr = arg2;
3053 struct rusage rusage, *rusage_ptr;
3054 target_ulong target_rusage = arg4;
3055 if (target_rusage)
3056 rusage_ptr = &rusage;
3057 else
3058 rusage_ptr = NULL;
3059 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
3060 if (!is_error(ret)) {
3061 if (status_ptr)
3062 tputl(status_ptr, status);
3063 if (target_rusage) {
3064 host_to_target_rusage(target_rusage, &rusage);
3065 }
3066 }
3067 }
3068 break;
3069 case TARGET_NR_swapoff:
3070 p = lock_user_string(arg1);
3071 ret = get_errno(swapoff(p));
3072 unlock_user(p, arg1, 0);
3073 break;
3074 case TARGET_NR_sysinfo:
3075 {
3076 struct target_sysinfo *target_value;
3077 struct sysinfo value;
3078 ret = get_errno(sysinfo(&value));
3079 if (!is_error(ret) && arg1)
3080 {
3081 /* ??? __put_user is probably wrong. */
3082 lock_user_struct(target_value, arg1, 0);
3083 __put_user(value.uptime, &target_value->uptime);
3084 __put_user(value.loads[0], &target_value->loads[0]);
3085 __put_user(value.loads[1], &target_value->loads[1]);
3086 __put_user(value.loads[2], &target_value->loads[2]);
3087 __put_user(value.totalram, &target_value->totalram);
3088 __put_user(value.freeram, &target_value->freeram);
3089 __put_user(value.sharedram, &target_value->sharedram);
3090 __put_user(value.bufferram, &target_value->bufferram);
3091 __put_user(value.totalswap, &target_value->totalswap);
3092 __put_user(value.freeswap, &target_value->freeswap);
3093 __put_user(value.procs, &target_value->procs);
3094 __put_user(value.totalhigh, &target_value->totalhigh);
3095 __put_user(value.freehigh, &target_value->freehigh);
3096 __put_user(value.mem_unit, &target_value->mem_unit);
3097 unlock_user_struct(target_value, arg1, 1);
3098 }
3099 }
3100 break;
3101 case TARGET_NR_ipc:
3102 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3103 break;
3104 case TARGET_NR_fsync:
3105 ret = get_errno(fsync(arg1));
3106 break;
3107 case TARGET_NR_clone:
3108 ret = get_errno(do_fork(cpu_env, arg1, arg2));
3109 break;
3110 #ifdef __NR_exit_group
3111 /* new thread calls */
3112 case TARGET_NR_exit_group:
3113 gdb_exit(cpu_env, arg1);
3114 ret = get_errno(exit_group(arg1));
3115 break;
3116 #endif
3117 case TARGET_NR_setdomainname:
3118 p = lock_user_string(arg1);
3119 ret = get_errno(setdomainname(p, arg2));
3120 unlock_user(p, arg1, 0);
3121 break;
3122 case TARGET_NR_uname:
3123 /* no need to transcode because we use the linux syscall */
3124 {
3125 struct new_utsname * buf;
3126
3127 lock_user_struct(buf, arg1, 0);
3128 ret = get_errno(sys_uname(buf));
3129 if (!is_error(ret)) {
3130 /* Overrite the native machine name with whatever is being
3131 emulated. */
3132 strcpy (buf->machine, UNAME_MACHINE);
3133 /* Allow the user to override the reported release. */
3134 if (qemu_uname_release && *qemu_uname_release)
3135 strcpy (buf->release, qemu_uname_release);
3136 }
3137 unlock_user_struct(buf, arg1, 1);
3138 }
3139 break;
3140 #ifdef TARGET_I386
3141 case TARGET_NR_modify_ldt:
3142 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3143 break;
3144 case TARGET_NR_vm86old:
3145 goto unimplemented;
3146 case TARGET_NR_vm86:
3147 ret = do_vm86(cpu_env, arg1, arg2);
3148 break;
3149 #endif
3150 case TARGET_NR_adjtimex:
3151 goto unimplemented;
3152 case TARGET_NR_create_module:
3153 case TARGET_NR_init_module:
3154 case TARGET_NR_delete_module:
3155 case TARGET_NR_get_kernel_syms:
3156 goto unimplemented;
3157 case TARGET_NR_quotactl:
3158 goto unimplemented;
3159 case TARGET_NR_getpgid:
3160 ret = get_errno(getpgid(arg1));
3161 break;
3162 case TARGET_NR_fchdir:
3163 ret = get_errno(fchdir(arg1));
3164 break;
3165 case TARGET_NR_bdflush:
3166 goto unimplemented;
3167 case TARGET_NR_sysfs:
3168 goto unimplemented;
3169 case TARGET_NR_personality:
3170 ret = get_errno(personality(arg1));
3171 break;
3172 case TARGET_NR_afs_syscall:
3173 goto unimplemented;
3174 case TARGET_NR__llseek:
3175 {
3176 #if defined (__x86_64__)
3177 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
3178 tput64(arg4, ret);
3179 #else
3180 int64_t res;
3181 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
3182 tput64(arg4, res);
3183 #endif
3184 }
3185 break;
3186 case TARGET_NR_getdents:
3187 #if TARGET_LONG_SIZE != 4
3188 goto unimplemented;
3189 #warning not supported
3190 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
3191 {
3192 struct target_dirent *target_dirp;
3193 struct dirent *dirp;
3194 long count = arg3;
3195
3196 dirp = malloc(count);
3197 if (!dirp)
3198 return -ENOMEM;
3199
3200 ret = get_errno(sys_getdents(arg1, dirp, count));
3201 if (!is_error(ret)) {
3202 struct dirent *de;
3203 struct target_dirent *tde;
3204 int len = ret;
3205 int reclen, treclen;
3206 int count1, tnamelen;
3207
3208 count1 = 0;
3209 de = dirp;
3210 target_dirp = lock_user(arg2, count, 0);
3211 tde = target_dirp;
3212 while (len > 0) {
3213 reclen = de->d_reclen;
3214 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
3215 tde->d_reclen = tswap16(treclen);
3216 tde->d_ino = tswapl(de->d_ino);
3217 tde->d_off = tswapl(de->d_off);
3218 tnamelen = treclen - (2 * sizeof(target_long) + 2);
3219 if (tnamelen > 256)
3220 tnamelen = 256;
3221 /* XXX: may not be correct */
3222 strncpy(tde->d_name, de->d_name, tnamelen);
3223 de = (struct dirent *)((char *)de + reclen);
3224 len -= reclen;
3225 tde = (struct dirent *)((char *)tde + treclen);
3226 count1 += treclen;
3227 }
3228 ret = count1;
3229 }
3230 unlock_user(target_dirp, arg2, ret);
3231 free(dirp);
3232 }
3233 #else
3234 {
3235 struct dirent *dirp;
3236 long count = arg3;
3237
3238 dirp = lock_user(arg2, count, 0);
3239 ret = get_errno(sys_getdents(arg1, dirp, count));
3240 if (!is_error(ret)) {
3241 struct dirent *de;
3242 int len = ret;
3243 int reclen;
3244 de = dirp;
3245 while (len > 0) {
3246 reclen = de->d_reclen;
3247 if (reclen > len)
3248 break;
3249 de->d_reclen = tswap16(reclen);
3250 tswapls(&de->d_ino);
3251 tswapls(&de->d_off);
3252 de = (struct dirent *)((char *)de + reclen);
3253 len -= reclen;
3254 }
3255 }
3256 unlock_user(dirp, arg2, ret);
3257 }
3258 #endif
3259 break;
3260 #ifdef TARGET_NR_getdents64
3261 case TARGET_NR_getdents64:
3262 {
3263 struct dirent64 *dirp;
3264 long count = arg3;
3265 dirp = lock_user(arg2, count, 0);
3266 ret = get_errno(sys_getdents64(arg1, dirp, count));
3267 if (!is_error(ret)) {
3268 struct dirent64 *de;
3269 int len = ret;
3270 int reclen;
3271 de = dirp;
3272 while (len > 0) {
3273 reclen = de->d_reclen;
3274 if (reclen > len)
3275 break;
3276 de->d_reclen = tswap16(reclen);
3277 tswap64s(&de->d_ino);
3278 tswap64s(&de->d_off);
3279 de = (struct dirent64 *)((char *)de + reclen);
3280 len -= reclen;
3281 }
3282 }
3283 unlock_user(dirp, arg2, ret);
3284 }
3285 break;
3286 #endif /* TARGET_NR_getdents64 */
3287 case TARGET_NR__newselect:
3288 ret = do_select(arg1, arg2, arg3, arg4, arg5);
3289 break;
3290 case TARGET_NR_poll:
3291 {
3292 struct target_pollfd *target_pfd;
3293 unsigned int nfds = arg2;
3294 int timeout = arg3;
3295 struct pollfd *pfd;
3296 unsigned int i;
3297
3298 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3299 pfd = alloca(sizeof(struct pollfd) * nfds);
3300 for(i = 0; i < nfds; i++) {
3301 pfd[i].fd = tswap32(target_pfd[i].fd);
3302 pfd[i].events = tswap16(target_pfd[i].events);
3303 }
3304 ret = get_errno(poll(pfd, nfds, timeout));
3305 if (!is_error(ret)) {
3306 for(i = 0; i < nfds; i++) {
3307 target_pfd[i].revents = tswap16(pfd[i].revents);
3308 }
3309 ret += nfds * (sizeof(struct target_pollfd)
3310 - sizeof(struct pollfd));
3311 }
3312 unlock_user(target_pfd, arg1, ret);
3313 }
3314 break;
3315 case TARGET_NR_flock:
3316 /* NOTE: the flock constant seems to be the same for every
3317 Linux platform */
3318 ret = get_errno(flock(arg1, arg2));
3319 break;
3320 case TARGET_NR_readv:
3321 {
3322 int count = arg3;
3323 struct iovec *vec;
3324
3325 vec = alloca(count * sizeof(struct iovec));
3326 lock_iovec(vec, arg2, count, 0);
3327 ret = get_errno(readv(arg1, vec, count));
3328 unlock_iovec(vec, arg2, count, 1);
3329 }
3330 break;
3331 case TARGET_NR_writev:
3332 {
3333 int count = arg3;
3334 struct iovec *vec;
3335
3336 vec = alloca(count * sizeof(struct iovec));
3337 lock_iovec(vec, arg2, count, 1);
3338 ret = get_errno(writev(arg1, vec, count));
3339 unlock_iovec(vec, arg2, count, 0);
3340 }
3341 break;
3342 case TARGET_NR_getsid:
3343 ret = get_errno(getsid(arg1));
3344 break;
3345 case TARGET_NR_fdatasync:
3346 ret = get_errno(fdatasync(arg1));
3347 break;
3348 case TARGET_NR__sysctl:
3349 /* We don't implement this, but ENODIR is always a safe
3350 return value. */
3351 return -ENOTDIR;
3352 case TARGET_NR_sched_setparam:
3353 {
3354 struct sched_param *target_schp;
3355 struct sched_param schp;
3356
3357 lock_user_struct(target_schp, arg2, 1);
3358 schp.sched_priority = tswap32(target_schp->sched_priority);
3359 unlock_user_struct(target_schp, arg2, 0);
3360 ret = get_errno(sched_setparam(arg1, &schp));
3361 }
3362 break;
3363 case TARGET_NR_sched_getparam:
3364 {
3365 struct sched_param *target_schp;
3366 struct sched_param schp;
3367 ret = get_errno(sched_getparam(arg1, &schp));
3368 if (!is_error(ret)) {
3369 lock_user_struct(target_schp, arg2, 0);
3370 target_schp->sched_priority = tswap32(schp.sched_priority);
3371 unlock_user_struct(target_schp, arg2, 1);
3372 }
3373 }
3374 break;
3375 case TARGET_NR_sched_setscheduler:
3376 {
3377 struct sched_param *target_schp;
3378 struct sched_param schp;
3379 lock_user_struct(target_schp, arg3, 1);
3380 schp.sched_priority = tswap32(target_schp->sched_priority);
3381 unlock_user_struct(target_schp, arg3, 0);
3382 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3383 }
3384 break;
3385 case TARGET_NR_sched_getscheduler:
3386 ret = get_errno(sched_getscheduler(arg1));
3387 break;
3388 case TARGET_NR_sched_yield:
3389 ret = get_errno(sched_yield());
3390 break;
3391 case TARGET_NR_sched_get_priority_max:
3392 ret = get_errno(sched_get_priority_max(arg1));
3393 break;
3394 case TARGET_NR_sched_get_priority_min:
3395 ret = get_errno(sched_get_priority_min(arg1));
3396 break;
3397 case TARGET_NR_sched_rr_get_interval:
3398 {
3399 struct timespec ts;
3400 ret = get_errno(sched_rr_get_interval(arg1, &ts));
3401 if (!is_error(ret)) {
3402 host_to_target_timespec(arg2, &ts);
3403 }
3404 }
3405 break;
3406 case TARGET_NR_nanosleep:
3407 {
3408 struct timespec req, rem;
3409 target_to_host_timespec(&req, arg1);
3410 ret = get_errno(nanosleep(&req, &rem));
3411 if (is_error(ret) && arg2) {
3412 host_to_target_timespec(arg2, &rem);
3413 }
3414 }
3415 break;
3416 case TARGET_NR_query_module:
3417 goto unimplemented;
3418 case TARGET_NR_nfsservctl:
3419 goto unimplemented;
3420 case TARGET_NR_prctl:
3421 goto unimplemented;
3422 #ifdef TARGET_NR_pread
3423 case TARGET_NR_pread:
3424 page_unprotect_range(arg2, arg3);
3425 p = lock_user(arg2, arg3, 0);
3426 ret = get_errno(pread(arg1, p, arg3, arg4));
3427 unlock_user(p, arg2, ret);
3428 break;
3429 case TARGET_NR_pwrite:
3430 p = lock_user(arg2, arg3, 1);
3431 ret = get_errno(pwrite(arg1, p, arg3, arg4));
3432 unlock_user(p, arg2, 0);
3433 break;
3434 #endif
3435 case TARGET_NR_getcwd:
3436 p = lock_user(arg1, arg2, 0);
3437 ret = get_errno(sys_getcwd1(p, arg2));
3438 unlock_user(p, arg1, ret);
3439 break;
3440 case TARGET_NR_capget:
3441 goto unimplemented;
3442 case TARGET_NR_capset:
3443 goto unimplemented;
3444 case TARGET_NR_sigaltstack:
3445 goto unimplemented;
3446 case TARGET_NR_sendfile:
3447 goto unimplemented;
3448 #ifdef TARGET_NR_getpmsg
3449 case TARGET_NR_getpmsg:
3450 goto unimplemented;
3451 #endif
3452 #ifdef TARGET_NR_putpmsg
3453 case TARGET_NR_putpmsg:
3454 goto unimplemented;
3455 #endif
3456 #ifdef TARGET_NR_vfork
3457 case TARGET_NR_vfork:
3458 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3459 break;
3460 #endif
3461 #ifdef TARGET_NR_ugetrlimit
3462 case TARGET_NR_ugetrlimit:
3463 {
3464 struct rlimit rlim;
3465 ret = get_errno(getrlimit(arg1, &rlim));
3466 if (!is_error(ret)) {
3467 struct target_rlimit *target_rlim;
3468 lock_user_struct(target_rlim, arg2, 0);
3469 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3470 target_rlim->rlim_max = tswapl(rlim.rlim_max);
3471 unlock_user_struct(target_rlim, arg2, 1);
3472 }
3473 break;
3474 }
3475 #endif
3476 #ifdef TARGET_NR_truncate64
3477 case TARGET_NR_truncate64:
3478 p = lock_user_string(arg1);
3479 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3480 unlock_user(p, arg1, 0);
3481 break;
3482 #endif
3483 #ifdef TARGET_NR_ftruncate64
3484 case TARGET_NR_ftruncate64:
3485 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3486 break;
3487 #endif
3488 #ifdef TARGET_NR_stat64
3489 case TARGET_NR_stat64:
3490 p = lock_user_string(arg1);
3491 ret = get_errno(stat(path(p), &st));
3492 unlock_user(p, arg1, 0);
3493 goto do_stat64;
3494 #endif
3495 #ifdef TARGET_NR_lstat64
3496 case TARGET_NR_lstat64:
3497 p = lock_user_string(arg1);
3498 ret = get_errno(lstat(path(p), &st));
3499 unlock_user(p, arg1, 0);
3500 goto do_stat64;
3501 #endif
3502 #ifdef TARGET_NR_fstat64
3503 case TARGET_NR_fstat64:
3504 {
3505 ret = get_errno(fstat(arg1, &st));
3506 do_stat64:
3507 if (!is_error(ret)) {
3508 #ifdef TARGET_ARM
3509 if (((CPUARMState *)cpu_env)->eabi) {
3510 struct target_eabi_stat64 *target_st;
3511 lock_user_struct(target_st, arg2, 1);
3512 memset(target_st, 0, sizeof(struct target_eabi_stat64));
3513 /* put_user is probably wrong. */
3514 put_user(st.st_dev, &target_st->st_dev);
3515 put_user(st.st_ino, &target_st->st_ino);
3516 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3517 put_user(st.st_ino, &target_st->__st_ino);
3518 #endif
3519 put_user(st.st_mode, &target_st->st_mode);
3520 put_user(st.st_nlink, &target_st->st_nlink);
3521 put_user(st.st_uid, &target_st->st_uid);
3522 put_user(st.st_gid, &target_st->st_gid);
3523 put_user(st.st_rdev, &target_st->st_rdev);
3524 /* XXX: better use of kernel struct */
3525 put_user(st.st_size, &target_st->st_size);
3526 put_user(st.st_blksize, &target_st->st_blksize);
3527 put_user(st.st_blocks, &target_st->st_blocks);
3528 put_user(st.st_atime, &target_st->target_st_atime);
3529 put_user(st.st_mtime, &target_st->target_st_mtime);
3530 put_user(st.st_ctime, &target_st->target_st_ctime);
3531 unlock_user_struct(target_st, arg2, 0);
3532 } else
3533 #endif
3534 {
3535 struct target_stat64 *target_st;
3536 lock_user_struct(target_st, arg2, 1);
3537 memset(target_st, 0, sizeof(struct target_stat64));
3538 /* ??? put_user is probably wrong. */
3539 put_user(st.st_dev, &target_st->st_dev);
3540 put_user(st.st_ino, &target_st->st_ino);
3541 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3542 put_user(st.st_ino, &target_st->__st_ino);
3543 #endif
3544 put_user(st.st_mode, &target_st->st_mode);
3545 put_user(st.st_nlink, &target_st->st_nlink);
3546 put_user(st.st_uid, &target_st->st_uid);
3547 put_user(st.st_gid, &target_st->st_gid);
3548 put_user(st.st_rdev, &target_st->st_rdev);
3549 /* XXX: better use of kernel struct */
3550 put_user(st.st_size, &target_st->st_size);
3551 put_user(st.st_blksize, &target_st->st_blksize);
3552 put_user(st.st_blocks, &target_st->st_blocks);
3553 put_user(st.st_atime, &target_st->target_st_atime);
3554 put_user(st.st_mtime, &target_st->target_st_mtime);
3555 put_user(st.st_ctime, &target_st->target_st_ctime);
3556 unlock_user_struct(target_st, arg2, 0);
3557 }
3558 }
3559 }
3560 break;
3561 #endif
3562 #ifdef USE_UID16
3563 case TARGET_NR_lchown:
3564 p = lock_user_string(arg1);
3565 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3566 unlock_user(p, arg1, 0);
3567 break;
3568 case TARGET_NR_getuid:
3569 ret = get_errno(high2lowuid(getuid()));
3570 break;
3571 case TARGET_NR_getgid:
3572 ret = get_errno(high2lowgid(getgid()));
3573 break;
3574 case TARGET_NR_geteuid:
3575 ret = get_errno(high2lowuid(geteuid()));
3576 break;
3577 case TARGET_NR_getegid:
3578 ret = get_errno(high2lowgid(getegid()));
3579 break;
3580 case TARGET_NR_setreuid:
3581 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3582 break;
3583 case TARGET_NR_setregid:
3584 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3585 break;
3586 case TARGET_NR_getgroups:
3587 {
3588 int gidsetsize = arg1;
3589 uint16_t *target_grouplist;
3590 gid_t *grouplist;
3591 int i;
3592
3593 grouplist = alloca(gidsetsize * sizeof(gid_t));
3594 ret = get_errno(getgroups(gidsetsize, grouplist));
3595 if (!is_error(ret)) {
3596 target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3597 for(i = 0;i < gidsetsize; i++)
3598 target_grouplist[i] = tswap16(grouplist[i]);
3599 unlock_user(target_grouplist, arg2, gidsetsize * 2);
3600 }
3601 }
3602 break;
3603 case TARGET_NR_setgroups:
3604 {
3605 int gidsetsize = arg1;
3606 uint16_t *target_grouplist;
3607 gid_t *grouplist;
3608 int i;
3609
3610 grouplist = alloca(gidsetsize * sizeof(gid_t));
3611 target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3612 for(i = 0;i < gidsetsize; i++)
3613 grouplist[i] = tswap16(target_grouplist[i]);
3614 unlock_user(target_grouplist, arg2, 0);
3615 ret = get_errno(setgroups(gidsetsize, grouplist));
3616 }
3617 break;
3618 case TARGET_NR_fchown:
3619 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3620 break;
3621 #ifdef TARGET_NR_setresuid
3622 case TARGET_NR_setresuid:
3623 ret = get_errno(setresuid(low2highuid(arg1),
3624 low2highuid(arg2),
3625 low2highuid(arg3)));
3626 break;
3627 #endif
3628 #ifdef TARGET_NR_getresuid
3629 case TARGET_NR_getresuid:
3630 {
3631 uid_t ruid, euid, suid;
3632 ret = get_errno(getresuid(&ruid, &euid, &suid));
3633 if (!is_error(ret)) {
3634 tput16(arg1, tswap16(high2lowuid(ruid)));
3635 tput16(arg2, tswap16(high2lowuid(euid)));
3636 tput16(arg3, tswap16(high2lowuid(suid)));
3637 }
3638 }
3639 break;
3640 #endif
3641 #ifdef TARGET_NR_getresgid
3642 case TARGET_NR_setresgid:
3643 ret = get_errno(setresgid(low2highgid(arg1),
3644 low2highgid(arg2),
3645 low2highgid(arg3)));
3646 break;
3647 #endif
3648 #ifdef TARGET_NR_getresgid
3649 case TARGET_NR_getresgid:
3650 {
3651 gid_t rgid, egid, sgid;
3652 ret = get_errno(getresgid(&rgid, &egid, &sgid));
3653 if (!is_error(ret)) {
3654 tput16(arg1, tswap16(high2lowgid(rgid)));
3655 tput16(arg2, tswap16(high2lowgid(egid)));
3656 tput16(arg3, tswap16(high2lowgid(sgid)));
3657 }
3658 }
3659 break;
3660 #endif
3661 case TARGET_NR_chown:
3662 p = lock_user_string(arg1);
3663 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3664 unlock_user(p, arg1, 0);
3665 break;
3666 case TARGET_NR_setuid:
3667 ret = get_errno(setuid(low2highuid(arg1)));
3668 break;
3669 case TARGET_NR_setgid:
3670 ret = get_errno(setgid(low2highgid(arg1)));
3671 break;
3672 case TARGET_NR_setfsuid:
3673 ret = get_errno(setfsuid(arg1));
3674 break;
3675 case TARGET_NR_setfsgid:
3676 ret = get_errno(setfsgid(arg1));
3677 break;
3678 #endif /* USE_UID16 */
3679
3680 #ifdef TARGET_NR_lchown32
3681 case TARGET_NR_lchown32:
3682 p = lock_user_string(arg1);
3683 ret = get_errno(lchown(p, arg2, arg3));
3684 unlock_user(p, arg1, 0);
3685 break;
3686 #endif
3687 #ifdef TARGET_NR_getuid32
3688 case TARGET_NR_getuid32:
3689 ret = get_errno(getuid());
3690 break;
3691 #endif
3692 #ifdef TARGET_NR_getgid32
3693 case TARGET_NR_getgid32:
3694 ret = get_errno(getgid());
3695 break;
3696 #endif
3697 #ifdef TARGET_NR_geteuid32
3698 case TARGET_NR_geteuid32:
3699 ret = get_errno(geteuid());
3700 break;
3701 #endif
3702 #ifdef TARGET_NR_getegid32
3703 case TARGET_NR_getegid32:
3704 ret = get_errno(getegid());
3705 break;
3706 #endif
3707 #ifdef TARGET_NR_setreuid32
3708 case TARGET_NR_setreuid32:
3709 ret = get_errno(setreuid(arg1, arg2));
3710 break;
3711 #endif
3712 #ifdef TARGET_NR_setregid32
3713 case TARGET_NR_setregid32:
3714 ret = get_errno(setregid(arg1, arg2));
3715 break;
3716 #endif
3717 #ifdef TARGET_NR_getgroups32
3718 case TARGET_NR_getgroups32:
3719 {
3720 int gidsetsize = arg1;
3721 uint32_t *target_grouplist;
3722 gid_t *grouplist;
3723 int i;
3724
3725 grouplist = alloca(gidsetsize * sizeof(gid_t));
3726 ret = get_errno(getgroups(gidsetsize, grouplist));
3727 if (!is_error(ret)) {
3728 target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3729 for(i = 0;i < gidsetsize; i++)
3730 target_grouplist[i] = tswap32(grouplist[i]);
3731 unlock_user(target_grouplist, arg2, gidsetsize * 4);
3732 }
3733 }
3734 break;
3735 #endif
3736 #ifdef TARGET_NR_setgroups32
3737 case TARGET_NR_setgroups32:
3738 {
3739 int gidsetsize = arg1;
3740 uint32_t *target_grouplist;
3741 gid_t *grouplist;
3742 int i;
3743
3744 grouplist = alloca(gidsetsize * sizeof(gid_t));
3745 target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3746 for(i = 0;i < gidsetsize; i++)
3747 grouplist[i] = tswap32(target_grouplist[i]);
3748 unlock_user(target_grouplist, arg2, 0);
3749 ret = get_errno(setgroups(gidsetsize, grouplist));
3750 }
3751 break;
3752 #endif
3753 #ifdef TARGET_NR_fchown32
3754 case TARGET_NR_fchown32:
3755 ret = get_errno(fchown(arg1, arg2, arg3));
3756 break;
3757 #endif
3758 #ifdef TARGET_NR_setresuid32
3759 case TARGET_NR_setresuid32:
3760 ret = get_errno(setresuid(arg1, arg2, arg3));
3761 break;
3762 #endif
3763 #ifdef TARGET_NR_getresuid32
3764 case TARGET_NR_getresuid32:
3765 {
3766 uid_t ruid, euid, suid;
3767 ret = get_errno(getresuid(&ruid, &euid, &suid));
3768 if (!is_error(ret)) {
3769 tput32(arg1, tswap32(ruid));
3770 tput32(arg2, tswap32(euid));
3771 tput32(arg3, tswap32(suid));
3772 }
3773 }
3774 break;
3775 #endif
3776 #ifdef TARGET_NR_setresgid32
3777 case TARGET_NR_setresgid32:
3778 ret = get_errno(setresgid(arg1, arg2, arg3));
3779 break;
3780 #endif
3781 #ifdef TARGET_NR_getresgid32
3782 case TARGET_NR_getresgid32:
3783 {
3784 gid_t rgid, egid, sgid;
3785 ret = get_errno(getresgid(&rgid, &egid, &sgid));
3786 if (!is_error(ret)) {
3787 tput32(arg1, tswap32(rgid));
3788 tput32(arg2, tswap32(egid));
3789 tput32(arg3, tswap32(sgid));
3790 }
3791 }
3792 break;
3793 #endif
3794 #ifdef TARGET_NR_chown32
3795 case TARGET_NR_chown32:
3796 p = lock_user_string(arg1);
3797 ret = get_errno(chown(p, arg2, arg3));
3798 unlock_user(p, arg1, 0);
3799 break;
3800 #endif
3801 #ifdef TARGET_NR_setuid32
3802 case TARGET_NR_setuid32:
3803 ret = get_errno(setuid(arg1));
3804 break;
3805 #endif
3806 #ifdef TARGET_NR_setgid32
3807 case TARGET_NR_setgid32:
3808 ret = get_errno(setgid(arg1));
3809 break;
3810 #endif
3811 #ifdef TARGET_NR_setfsuid32
3812 case TARGET_NR_setfsuid32:
3813 ret = get_errno(setfsuid(arg1));
3814 break;
3815 #endif
3816 #ifdef TARGET_NR_setfsgid32
3817 case TARGET_NR_setfsgid32:
3818 ret = get_errno(setfsgid(arg1));
3819 break;
3820 #endif
3821
3822 case TARGET_NR_pivot_root:
3823 goto unimplemented;
3824 #ifdef TARGET_NR_mincore
3825 case TARGET_NR_mincore:
3826 goto unimplemented;
3827 #endif
3828 #ifdef TARGET_NR_madvise
3829 case TARGET_NR_madvise:
3830 /* A straight passthrough may not be safe because qemu sometimes
3831 turns private flie-backed mappings into anonymous mappings.
3832 This will break MADV_DONTNEED.
3833 This is a hint, so ignoring and returning success is ok. */
3834 ret = get_errno(0);
3835 break;
3836 #endif
3837 #if TARGET_LONG_BITS == 32
3838 case TARGET_NR_fcntl64:
3839 {
3840 struct flock64 fl;
3841 struct target_flock64 *target_fl;
3842 #ifdef TARGET_ARM
3843 struct target_eabi_flock64 *target_efl;
3844 #endif
3845
3846 switch(arg2) {
3847 case F_GETLK64:
3848 ret = get_errno(fcntl(arg1, arg2, &fl));
3849 if (ret == 0) {
3850 #ifdef TARGET_ARM
3851 if (((CPUARMState *)cpu_env)->eabi) {
3852 lock_user_struct(target_efl, arg3, 0);
3853 target_efl->l_type = tswap16(fl.l_type);
3854 target_efl->l_whence = tswap16(fl.l_whence);
3855 target_efl->l_start = tswap64(fl.l_start);
3856 target_efl->l_len = tswap64(fl.l_len);
3857 target_efl->l_pid = tswapl(fl.l_pid);
3858 unlock_user_struct(target_efl, arg3, 1);
3859 } else
3860 #endif
3861 {
3862 lock_user_struct(target_fl, arg3, 0);
3863 target_fl->l_type = tswap16(fl.l_type);
3864 target_fl->l_whence = tswap16(fl.l_whence);
3865 target_fl->l_start = tswap64(fl.l_start);
3866 target_fl->l_len = tswap64(fl.l_len);
3867 target_fl->l_pid = tswapl(fl.l_pid);
3868 unlock_user_struct(target_fl, arg3, 1);
3869 }
3870 }
3871 break;
3872
3873 case F_SETLK64:
3874 case F_SETLKW64:
3875 #ifdef TARGET_ARM
3876 if (((CPUARMState *)cpu_env)->eabi) {
3877 lock_user_struct(target_efl, arg3, 1);
3878 fl.l_type = tswap16(target_efl->l_type);
3879 fl.l_whence = tswap16(target_efl->l_whence);
3880 fl.l_start = tswap64(target_efl->l_start);
3881 fl.l_len = tswap64(target_efl->l_len);
3882 fl.l_pid = tswapl(target_efl->l_pid);
3883 unlock_user_struct(target_efl, arg3, 0);
3884 } else
3885 #endif
3886 {
3887 lock_user_struct(target_fl, arg3, 1);
3888 fl.l_type = tswap16(target_fl->l_type);
3889 fl.l_whence = tswap16(target_fl->l_whence);
3890 fl.l_start = tswap64(target_fl->l_start);
3891 fl.l_len = tswap64(target_fl->l_len);
3892 fl.l_pid = tswapl(target_fl->l_pid);
3893 unlock_user_struct(target_fl, arg3, 0);
3894 }
3895 ret = get_errno(fcntl(arg1, arg2, &fl));
3896 break;
3897 default:
3898 ret = get_errno(do_fcntl(arg1, arg2, arg3));
3899 break;
3900 }
3901 break;
3902 }
3903 #endif
3904 #ifdef TARGET_NR_cacheflush
3905 case TARGET_NR_cacheflush:
3906 /* self-modifying code is handled automatically, so nothing needed */
3907 ret = 0;
3908 break;
3909 #endif
3910 #ifdef TARGET_NR_security
3911 case TARGET_NR_security:
3912 goto unimplemented;
3913 #endif
3914 #ifdef TARGET_NR_getpagesize
3915 case TARGET_NR_getpagesize:
3916 ret = TARGET_PAGE_SIZE;
3917 break;
3918 #endif
3919 case TARGET_NR_gettid:
3920 ret = get_errno(gettid());
3921 break;
3922 case TARGET_NR_readahead:
3923 goto unimplemented;
3924 #ifdef TARGET_NR_setxattr
3925 case TARGET_NR_setxattr:
3926 case TARGET_NR_lsetxattr:
3927 case TARGET_NR_fsetxattr:
3928 case TARGET_NR_getxattr:
3929 case TARGET_NR_lgetxattr:
3930 case TARGET_NR_fgetxattr:
3931 case TARGET_NR_listxattr:
3932 case TARGET_NR_llistxattr:
3933 case TARGET_NR_flistxattr:
3934 case TARGET_NR_removexattr:
3935 case TARGET_NR_lremovexattr:
3936 case TARGET_NR_fremovexattr:
3937 goto unimplemented_nowarn;
3938 #endif
3939 #ifdef TARGET_NR_set_thread_area
3940 case TARGET_NR_set_thread_area:
3941 case TARGET_NR_get_thread_area:
3942 goto unimplemented_nowarn;
3943 #endif
3944 #ifdef TARGET_NR_getdomainname
3945 case TARGET_NR_getdomainname:
3946 goto unimplemented_nowarn;
3947 #endif
3948 default:
3949 unimplemented:
3950 gemu_log("qemu: Unsupported syscall: %d\n", num);
3951 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area) || defined(TARGET_NR_getdomainname)
3952 unimplemented_nowarn:
3953 #endif
3954 ret = -ENOSYS;
3955 break;
3956 }
3957 fail:
3958 #ifdef DEBUG
3959 gemu_log(" = %ld\n", ret);
3960 #endif
3961 return ret;
3962 }
3963
Patches shipped by Fedora