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PowerPC target support (Jocelyn Mayer) - added better support for uid16
[qemu.git] / linux-user / syscall.c
1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <elf.h>
25 #include <endian.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <time.h>
30 #include <sys/types.h>
31 #include <sys/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 <utime.h>
45 //#include <sys/user.h>
46 #include <netinet/tcp.h>
47
48 #define termios host_termios
49 #define winsize host_winsize
50 #define termio host_termio
51 #define sgttyb host_sgttyb /* same as target */
52 #define tchars host_tchars /* same as target */
53 #define ltchars host_ltchars /* same as target */
54
55 #include <linux/termios.h>
56 #include <linux/unistd.h>
57 #include <linux/utsname.h>
58 #include <linux/cdrom.h>
59 #include <linux/hdreg.h>
60 #include <linux/soundcard.h>
61 #include <linux/dirent.h>
62 #include <linux/kd.h>
63
64 #include "qemu.h"
65
66 //#define DEBUG
67
68 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
69 /* 16 bit uid wrappers emulation */
70 #define USE_UID16
71 #endif
72
73 //#include <linux/msdos_fs.h>
74 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
75 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
76
77
78 #if defined(__powerpc__)
79 #undef __syscall_nr
80 #undef __sc_loadargs_0
81 #undef __sc_loadargs_1
82 #undef __sc_loadargs_2
83 #undef __sc_loadargs_3
84 #undef __sc_loadargs_4
85 #undef __sc_loadargs_5
86 #undef __sc_asm_input_0
87 #undef __sc_asm_input_1
88 #undef __sc_asm_input_2
89 #undef __sc_asm_input_3
90 #undef __sc_asm_input_4
91 #undef __sc_asm_input_5
92 #undef _syscall0
93 #undef _syscall1
94 #undef _syscall2
95 #undef _syscall3
96 #undef _syscall4
97 #undef _syscall5
98
99 /* need to redefine syscalls as Linux kernel defines are incorrect for
100 the clobber list */
101 /* On powerpc a system call basically clobbers the same registers like a
102 * function call, with the exception of LR (which is needed for the
103 * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
104 * an error return status).
105 */
106
107 #define __syscall_nr(nr, type, name, args...) \
108 unsigned long __sc_ret, __sc_err; \
109 { \
110 register unsigned long __sc_0 __asm__ ("r0"); \
111 register unsigned long __sc_3 __asm__ ("r3"); \
112 register unsigned long __sc_4 __asm__ ("r4"); \
113 register unsigned long __sc_5 __asm__ ("r5"); \
114 register unsigned long __sc_6 __asm__ ("r6"); \
115 register unsigned long __sc_7 __asm__ ("r7"); \
116 \
117 __sc_loadargs_##nr(name, args); \
118 __asm__ __volatile__ \
119 ("sc \n\t" \
120 "mfcr %0 " \
121 : "=&r" (__sc_0), \
122 "=&r" (__sc_3), "=&r" (__sc_4), \
123 "=&r" (__sc_5), "=&r" (__sc_6), \
124 "=&r" (__sc_7) \
125 : __sc_asm_input_##nr \
126 : "cr0", "ctr", "memory", \
127 "r8", "r9", "r10","r11", "r12"); \
128 __sc_ret = __sc_3; \
129 __sc_err = __sc_0; \
130 } \
131 if (__sc_err & 0x10000000) \
132 { \
133 errno = __sc_ret; \
134 __sc_ret = -1; \
135 } \
136 return (type) __sc_ret
137
138 #define __sc_loadargs_0(name, dummy...) \
139 __sc_0 = __NR_##name
140 #define __sc_loadargs_1(name, arg1) \
141 __sc_loadargs_0(name); \
142 __sc_3 = (unsigned long) (arg1)
143 #define __sc_loadargs_2(name, arg1, arg2) \
144 __sc_loadargs_1(name, arg1); \
145 __sc_4 = (unsigned long) (arg2)
146 #define __sc_loadargs_3(name, arg1, arg2, arg3) \
147 __sc_loadargs_2(name, arg1, arg2); \
148 __sc_5 = (unsigned long) (arg3)
149 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4) \
150 __sc_loadargs_3(name, arg1, arg2, arg3); \
151 __sc_6 = (unsigned long) (arg4)
152 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5) \
153 __sc_loadargs_4(name, arg1, arg2, arg3, arg4); \
154 __sc_7 = (unsigned long) (arg5)
155
156 #define __sc_asm_input_0 "0" (__sc_0)
157 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
158 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
159 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
160 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
161 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
162
163 #define _syscall0(type,name) \
164 type name(void) \
165 { \
166 __syscall_nr(0, type, name); \
167 }
168
169 #define _syscall1(type,name,type1,arg1) \
170 type name(type1 arg1) \
171 { \
172 __syscall_nr(1, type, name, arg1); \
173 }
174
175 #define _syscall2(type,name,type1,arg1,type2,arg2) \
176 type name(type1 arg1, type2 arg2) \
177 { \
178 __syscall_nr(2, type, name, arg1, arg2); \
179 }
180
181 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
182 type name(type1 arg1, type2 arg2, type3 arg3) \
183 { \
184 __syscall_nr(3, type, name, arg1, arg2, arg3); \
185 }
186
187 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
188 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
189 { \
190 __syscall_nr(4, type, name, arg1, arg2, arg3, arg4); \
191 }
192
193 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
194 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
195 { \
196 __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5); \
197 }
198 #endif
199
200 #define __NR_sys_uname __NR_uname
201 #define __NR_sys_getcwd1 __NR_getcwd
202 #define __NR_sys_statfs __NR_statfs
203 #define __NR_sys_fstatfs __NR_fstatfs
204 #define __NR_sys_getdents __NR_getdents
205 #define __NR_sys_getdents64 __NR_getdents64
206 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
207
208 #if defined(__alpha__) || defined (__ia64__)
209 #define __NR__llseek __NR_lseek
210 #endif
211
212 #ifdef __NR_gettid
213 _syscall0(int, gettid)
214 #else
215 static int gettid(void) {
216 return -ENOSYS;
217 }
218 #endif
219 _syscall1(int,sys_uname,struct new_utsname *,buf)
220 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
221 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
222 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
223 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
224 loff_t *, res, uint, wh);
225 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
226 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
227 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
228 #ifdef __NR_exit_group
229 _syscall1(int,exit_group,int,error_code)
230 #endif
231
232 extern int personality(int);
233 extern int flock(int, int);
234 extern int setfsuid(int);
235 extern int setfsgid(int);
236 extern int setresuid(uid_t, uid_t, uid_t);
237 extern int getresuid(uid_t *, uid_t *, uid_t *);
238 extern int setresgid(gid_t, gid_t, gid_t);
239 extern int getresgid(gid_t *, gid_t *, gid_t *);
240 extern int setgroups(int, gid_t *);
241
242 static inline long get_errno(long ret)
243 {
244 if (ret == -1)
245 return -errno;
246 else
247 return ret;
248 }
249
250 static inline int is_error(long ret)
251 {
252 return (unsigned long)ret >= (unsigned long)(-4096);
253 }
254
255 static char *target_brk;
256 static char *target_original_brk;
257
258 void target_set_brk(char *new_brk)
259 {
260 target_brk = new_brk;
261 target_original_brk = new_brk;
262 }
263
264 static long do_brk(char *new_brk)
265 {
266 char *brk_page;
267 long mapped_addr;
268 int new_alloc_size;
269
270 if (!new_brk)
271 return (long)target_brk;
272 if (new_brk < target_original_brk)
273 return -ENOMEM;
274
275 brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
276
277 /* If the new brk is less than this, set it and we're done... */
278 if (new_brk < brk_page) {
279 target_brk = new_brk;
280 return (long)target_brk;
281 }
282
283 /* We need to allocate more memory after the brk... */
284 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
285 mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size,
286 PROT_READ|PROT_WRITE,
287 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
288 if (is_error(mapped_addr)) {
289 return mapped_addr;
290 } else {
291 target_brk = new_brk;
292 return (long)target_brk;
293 }
294 }
295
296 static inline fd_set *target_to_host_fds(fd_set *fds,
297 target_long *target_fds, int n)
298 {
299 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
300 return (fd_set *)target_fds;
301 #else
302 int i, b;
303 if (target_fds) {
304 FD_ZERO(fds);
305 for(i = 0;i < n; i++) {
306 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
307 (i & (TARGET_LONG_BITS - 1))) & 1;
308 if (b)
309 FD_SET(i, fds);
310 }
311 return fds;
312 } else {
313 return NULL;
314 }
315 #endif
316 }
317
318 static inline void host_to_target_fds(target_long *target_fds,
319 fd_set *fds, int n)
320 {
321 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
322 /* nothing to do */
323 #else
324 int i, nw, j, k;
325 target_long v;
326
327 if (target_fds) {
328 nw = n / TARGET_LONG_BITS;
329 k = 0;
330 for(i = 0;i < nw; i++) {
331 v = 0;
332 for(j = 0; j < TARGET_LONG_BITS; j++) {
333 v |= ((FD_ISSET(k, fds) != 0) << j);
334 k++;
335 }
336 target_fds[i] = tswapl(v);
337 }
338 }
339 #endif
340 }
341
342 #if defined(__alpha__)
343 #define HOST_HZ 1024
344 #else
345 #define HOST_HZ 100
346 #endif
347
348 static inline long host_to_target_clock_t(long ticks)
349 {
350 #if HOST_HZ == TARGET_HZ
351 return ticks;
352 #else
353 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
354 #endif
355 }
356
357 static inline void host_to_target_rusage(struct target_rusage *target_rusage,
358 const struct rusage *rusage)
359 {
360 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
361 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
362 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
363 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
364 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
365 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
366 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
367 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
368 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
369 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
370 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
371 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
372 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
373 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
374 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
375 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
376 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
377 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
378 }
379
380 static inline void target_to_host_timeval(struct timeval *tv,
381 const struct target_timeval *target_tv)
382 {
383 tv->tv_sec = tswapl(target_tv->tv_sec);
384 tv->tv_usec = tswapl(target_tv->tv_usec);
385 }
386
387 static inline void host_to_target_timeval(struct target_timeval *target_tv,
388 const struct timeval *tv)
389 {
390 target_tv->tv_sec = tswapl(tv->tv_sec);
391 target_tv->tv_usec = tswapl(tv->tv_usec);
392 }
393
394
395 static long do_select(long n,
396 target_long *target_rfds, target_long *target_wfds,
397 target_long *target_efds, struct target_timeval *target_tv)
398 {
399 fd_set rfds, wfds, efds;
400 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
401 struct timeval tv, *tv_ptr;
402 long ret;
403
404 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
405 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
406 efds_ptr = target_to_host_fds(&efds, target_efds, n);
407
408 if (target_tv) {
409 target_to_host_timeval(&tv, target_tv);
410 tv_ptr = &tv;
411 } else {
412 tv_ptr = NULL;
413 }
414 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
415 if (!is_error(ret)) {
416 host_to_target_fds(target_rfds, rfds_ptr, n);
417 host_to_target_fds(target_wfds, wfds_ptr, n);
418 host_to_target_fds(target_efds, efds_ptr, n);
419
420 if (target_tv) {
421 host_to_target_timeval(target_tv, &tv);
422 }
423 }
424 return ret;
425 }
426
427 static inline void target_to_host_sockaddr(struct sockaddr *addr,
428 struct target_sockaddr *target_addr,
429 socklen_t len)
430 {
431 memcpy(addr, target_addr, len);
432 addr->sa_family = tswap16(target_addr->sa_family);
433 }
434
435 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
436 struct sockaddr *addr,
437 socklen_t len)
438 {
439 memcpy(target_addr, addr, len);
440 target_addr->sa_family = tswap16(addr->sa_family);
441 }
442
443 static inline void target_to_host_cmsg(struct msghdr *msgh,
444 struct target_msghdr *target_msgh)
445 {
446 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
447 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
448 socklen_t space = 0;
449
450 while (cmsg && target_cmsg) {
451 void *data = CMSG_DATA(cmsg);
452 void *target_data = TARGET_CMSG_DATA(target_cmsg);
453
454 int len = tswapl(target_cmsg->cmsg_len)
455 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
456
457 space += CMSG_SPACE(len);
458 if (space > msgh->msg_controllen) {
459 space -= CMSG_SPACE(len);
460 gemu_log("Host cmsg overflow");
461 break;
462 }
463
464 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
465 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
466 cmsg->cmsg_len = CMSG_LEN(len);
467
468 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
469 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
470 memcpy(data, target_data, len);
471 } else {
472 int *fd = (int *)data;
473 int *target_fd = (int *)target_data;
474 int i, numfds = len / sizeof(int);
475
476 for (i = 0; i < numfds; i++)
477 fd[i] = tswap32(target_fd[i]);
478 }
479
480 cmsg = CMSG_NXTHDR(msgh, cmsg);
481 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
482 }
483
484 msgh->msg_controllen = space;
485 }
486
487 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
488 struct msghdr *msgh)
489 {
490 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
491 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
492 socklen_t space = 0;
493
494 while (cmsg && target_cmsg) {
495 void *data = CMSG_DATA(cmsg);
496 void *target_data = TARGET_CMSG_DATA(target_cmsg);
497
498 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
499
500 space += TARGET_CMSG_SPACE(len);
501 if (space > tswapl(target_msgh->msg_controllen)) {
502 space -= TARGET_CMSG_SPACE(len);
503 gemu_log("Target cmsg overflow");
504 break;
505 }
506
507 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
508 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
509 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
510
511 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
512 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
513 memcpy(target_data, data, len);
514 } else {
515 int *fd = (int *)data;
516 int *target_fd = (int *)target_data;
517 int i, numfds = len / sizeof(int);
518
519 for (i = 0; i < numfds; i++)
520 target_fd[i] = tswap32(fd[i]);
521 }
522
523 cmsg = CMSG_NXTHDR(msgh, cmsg);
524 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
525 }
526
527 msgh->msg_controllen = tswapl(space);
528 }
529
530 static long do_setsockopt(int sockfd, int level, int optname,
531 void *optval, socklen_t optlen)
532 {
533 if (level == SOL_TCP) {
534 /* TCP options all take an 'int' value. */
535 int val;
536
537 if (optlen < sizeof(uint32_t))
538 return -EINVAL;
539
540 val = tswap32(*(uint32_t *)optval);
541 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
542 }
543
544 else if (level != SOL_SOCKET) {
545 gemu_log("Unsupported setsockopt level: %d\n", level);
546 return -ENOSYS;
547 }
548
549 switch (optname) {
550 /* Options with 'int' argument. */
551 case SO_DEBUG:
552 case SO_REUSEADDR:
553 case SO_TYPE:
554 case SO_ERROR:
555 case SO_DONTROUTE:
556 case SO_BROADCAST:
557 case SO_SNDBUF:
558 case SO_RCVBUF:
559 case SO_KEEPALIVE:
560 case SO_OOBINLINE:
561 case SO_NO_CHECK:
562 case SO_PRIORITY:
563 case SO_BSDCOMPAT:
564 case SO_PASSCRED:
565 case SO_TIMESTAMP:
566 case SO_RCVLOWAT:
567 case SO_RCVTIMEO:
568 case SO_SNDTIMEO:
569 {
570 int val;
571 if (optlen < sizeof(uint32_t))
572 return -EINVAL;
573 val = tswap32(*(uint32_t *)optval);
574 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
575 }
576
577 default:
578 gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
579 return -ENOSYS;
580 }
581 }
582
583 static long do_getsockopt(int sockfd, int level, int optname,
584 void *optval, socklen_t *optlen)
585 {
586 gemu_log("getsockopt not yet supported\n");
587 return -ENOSYS;
588 }
589
590 static long do_socketcall(int num, int32_t *vptr)
591 {
592 long ret;
593
594 switch(num) {
595 case SOCKOP_socket:
596 {
597 int domain = tswap32(vptr[0]);
598 int type = tswap32(vptr[1]);
599 int protocol = tswap32(vptr[2]);
600
601 ret = get_errno(socket(domain, type, protocol));
602 }
603 break;
604 case SOCKOP_bind:
605 {
606 int sockfd = tswap32(vptr[0]);
607 void *target_addr = (void *)tswap32(vptr[1]);
608 socklen_t addrlen = tswap32(vptr[2]);
609 void *addr = alloca(addrlen);
610
611 target_to_host_sockaddr(addr, target_addr, addrlen);
612 ret = get_errno(bind(sockfd, addr, addrlen));
613 }
614 break;
615 case SOCKOP_connect:
616 {
617 int sockfd = tswap32(vptr[0]);
618 void *target_addr = (void *)tswap32(vptr[1]);
619 socklen_t addrlen = tswap32(vptr[2]);
620 void *addr = alloca(addrlen);
621
622 target_to_host_sockaddr(addr, target_addr, addrlen);
623 ret = get_errno(connect(sockfd, addr, addrlen));
624 }
625 break;
626 case SOCKOP_listen:
627 {
628 int sockfd = tswap32(vptr[0]);
629 int backlog = tswap32(vptr[1]);
630
631 ret = get_errno(listen(sockfd, backlog));
632 }
633 break;
634 case SOCKOP_accept:
635 {
636 int sockfd = tswap32(vptr[0]);
637 void *target_addr = (void *)tswap32(vptr[1]);
638 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
639 socklen_t addrlen = tswap32(*target_addrlen);
640 void *addr = alloca(addrlen);
641
642 ret = get_errno(accept(sockfd, addr, &addrlen));
643 if (!is_error(ret)) {
644 host_to_target_sockaddr(target_addr, addr, addrlen);
645 *target_addrlen = tswap32(addrlen);
646 }
647 }
648 break;
649 case SOCKOP_getsockname:
650 {
651 int sockfd = tswap32(vptr[0]);
652 void *target_addr = (void *)tswap32(vptr[1]);
653 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
654 socklen_t addrlen = tswap32(*target_addrlen);
655 void *addr = alloca(addrlen);
656
657 ret = get_errno(getsockname(sockfd, addr, &addrlen));
658 if (!is_error(ret)) {
659 host_to_target_sockaddr(target_addr, addr, addrlen);
660 *target_addrlen = tswap32(addrlen);
661 }
662 }
663 break;
664 case SOCKOP_getpeername:
665 {
666 int sockfd = tswap32(vptr[0]);
667 void *target_addr = (void *)tswap32(vptr[1]);
668 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
669 socklen_t addrlen = tswap32(*target_addrlen);
670 void *addr = alloca(addrlen);
671
672 ret = get_errno(getpeername(sockfd, addr, &addrlen));
673 if (!is_error(ret)) {
674 host_to_target_sockaddr(target_addr, addr, addrlen);
675 *target_addrlen = tswap32(addrlen);
676 }
677 }
678 break;
679 case SOCKOP_socketpair:
680 {
681 int domain = tswap32(vptr[0]);
682 int type = tswap32(vptr[1]);
683 int protocol = tswap32(vptr[2]);
684 int32_t *target_tab = (void *)tswap32(vptr[3]);
685 int tab[2];
686
687 ret = get_errno(socketpair(domain, type, protocol, tab));
688 if (!is_error(ret)) {
689 target_tab[0] = tswap32(tab[0]);
690 target_tab[1] = tswap32(tab[1]);
691 }
692 }
693 break;
694 case SOCKOP_send:
695 {
696 int sockfd = tswap32(vptr[0]);
697 void *msg = (void *)tswap32(vptr[1]);
698 size_t len = tswap32(vptr[2]);
699 int flags = tswap32(vptr[3]);
700
701 ret = get_errno(send(sockfd, msg, len, flags));
702 }
703 break;
704 case SOCKOP_recv:
705 {
706 int sockfd = tswap32(vptr[0]);
707 void *msg = (void *)tswap32(vptr[1]);
708 size_t len = tswap32(vptr[2]);
709 int flags = tswap32(vptr[3]);
710
711 ret = get_errno(recv(sockfd, msg, len, flags));
712 }
713 break;
714 case SOCKOP_sendto:
715 {
716 int sockfd = tswap32(vptr[0]);
717 void *msg = (void *)tswap32(vptr[1]);
718 size_t len = tswap32(vptr[2]);
719 int flags = tswap32(vptr[3]);
720 void *target_addr = (void *)tswap32(vptr[4]);
721 socklen_t addrlen = tswap32(vptr[5]);
722 void *addr = alloca(addrlen);
723
724 target_to_host_sockaddr(addr, target_addr, addrlen);
725 ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
726 }
727 break;
728 case SOCKOP_recvfrom:
729 {
730 int sockfd = tswap32(vptr[0]);
731 void *msg = (void *)tswap32(vptr[1]);
732 size_t len = tswap32(vptr[2]);
733 int flags = tswap32(vptr[3]);
734 void *target_addr = (void *)tswap32(vptr[4]);
735 uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
736 socklen_t addrlen = tswap32(*target_addrlen);
737 void *addr = alloca(addrlen);
738
739 ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
740 if (!is_error(ret)) {
741 host_to_target_sockaddr(target_addr, addr, addrlen);
742 *target_addrlen = tswap32(addrlen);
743 }
744 }
745 break;
746 case SOCKOP_shutdown:
747 {
748 int sockfd = tswap32(vptr[0]);
749 int how = tswap32(vptr[1]);
750
751 ret = get_errno(shutdown(sockfd, how));
752 }
753 break;
754 case SOCKOP_sendmsg:
755 case SOCKOP_recvmsg:
756 {
757 int fd;
758 struct target_msghdr *msgp;
759 struct msghdr msg;
760 int flags, count, i;
761 struct iovec *vec;
762 struct target_iovec *target_vec;
763
764 msgp = (void *)tswap32(vptr[1]);
765 msg.msg_name = (void *)tswapl(msgp->msg_name);
766 msg.msg_namelen = tswapl(msgp->msg_namelen);
767 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
768 msg.msg_control = alloca(msg.msg_controllen);
769 msg.msg_flags = tswap32(msgp->msg_flags);
770
771 count = tswapl(msgp->msg_iovlen);
772 vec = alloca(count * sizeof(struct iovec));
773 target_vec = (void *)tswapl(msgp->msg_iov);
774 for(i = 0;i < count; i++) {
775 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
776 vec[i].iov_len = tswapl(target_vec[i].iov_len);
777 }
778 msg.msg_iovlen = count;
779 msg.msg_iov = vec;
780
781 fd = tswap32(vptr[0]);
782 flags = tswap32(vptr[2]);
783 if (num == SOCKOP_sendmsg) {
784 target_to_host_cmsg(&msg, msgp);
785 ret = get_errno(sendmsg(fd, &msg, flags));
786 } else {
787 ret = get_errno(recvmsg(fd, &msg, flags));
788 if (!is_error(ret))
789 host_to_target_cmsg(msgp, &msg);
790 }
791 }
792 break;
793 case SOCKOP_setsockopt:
794 {
795 int sockfd = tswap32(vptr[0]);
796 int level = tswap32(vptr[1]);
797 int optname = tswap32(vptr[2]);
798 void *optval = (void *)tswap32(vptr[3]);
799 socklen_t optlen = tswap32(vptr[4]);
800
801 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
802 }
803 break;
804 case SOCKOP_getsockopt:
805 {
806 int sockfd = tswap32(vptr[0]);
807 int level = tswap32(vptr[1]);
808 int optname = tswap32(vptr[2]);
809 void *optval = (void *)tswap32(vptr[3]);
810 uint32_t *target_len = (void *)tswap32(vptr[4]);
811 socklen_t optlen = tswap32(*target_len);
812
813 ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
814 if (!is_error(ret))
815 *target_len = tswap32(optlen);
816 }
817 break;
818 default:
819 gemu_log("Unsupported socketcall: %d\n", num);
820 ret = -ENOSYS;
821 break;
822 }
823 return ret;
824 }
825
826 /* kernel structure types definitions */
827 #define IFNAMSIZ 16
828
829 #define STRUCT(name, list...) STRUCT_ ## name,
830 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
831 enum {
832 #include "syscall_types.h"
833 };
834 #undef STRUCT
835 #undef STRUCT_SPECIAL
836
837 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
838 #define STRUCT_SPECIAL(name)
839 #include "syscall_types.h"
840 #undef STRUCT
841 #undef STRUCT_SPECIAL
842
843 typedef struct IOCTLEntry {
844 unsigned int target_cmd;
845 unsigned int host_cmd;
846 const char *name;
847 int access;
848 const argtype arg_type[5];
849 } IOCTLEntry;
850
851 #define IOC_R 0x0001
852 #define IOC_W 0x0002
853 #define IOC_RW (IOC_R | IOC_W)
854
855 #define MAX_STRUCT_SIZE 4096
856
857 IOCTLEntry ioctl_entries[] = {
858 #define IOCTL(cmd, access, types...) \
859 { TARGET_ ## cmd, cmd, #cmd, access, { types } },
860 #include "ioctls.h"
861 { 0, 0, },
862 };
863
864 static long do_ioctl(long fd, long cmd, long arg)
865 {
866 const IOCTLEntry *ie;
867 const argtype *arg_type;
868 long ret;
869 uint8_t buf_temp[MAX_STRUCT_SIZE];
870
871 ie = ioctl_entries;
872 for(;;) {
873 if (ie->target_cmd == 0) {
874 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
875 return -ENOSYS;
876 }
877 if (ie->target_cmd == cmd)
878 break;
879 ie++;
880 }
881 arg_type = ie->arg_type;
882 #if defined(DEBUG)
883 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
884 #endif
885 switch(arg_type[0]) {
886 case TYPE_NULL:
887 /* no argument */
888 ret = get_errno(ioctl(fd, ie->host_cmd));
889 break;
890 case TYPE_PTRVOID:
891 case TYPE_INT:
892 /* int argment */
893 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
894 break;
895 case TYPE_PTR:
896 arg_type++;
897 switch(ie->access) {
898 case IOC_R:
899 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
900 if (!is_error(ret)) {
901 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
902 }
903 break;
904 case IOC_W:
905 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
906 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
907 break;
908 default:
909 case IOC_RW:
910 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
911 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
912 if (!is_error(ret)) {
913 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
914 }
915 break;
916 }
917 break;
918 default:
919 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
920 ret = -ENOSYS;
921 break;
922 }
923 return ret;
924 }
925
926 bitmask_transtbl iflag_tbl[] = {
927 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
928 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
929 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
930 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
931 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
932 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
933 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
934 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
935 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
936 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
937 { TARGET_IXON, TARGET_IXON, IXON, IXON },
938 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
939 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
940 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
941 { 0, 0, 0, 0 }
942 };
943
944 bitmask_transtbl oflag_tbl[] = {
945 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
946 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
947 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
948 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
949 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
950 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
951 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
952 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
953 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
954 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
955 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
956 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
957 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
958 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
959 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
960 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
961 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
962 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
963 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
964 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
965 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
966 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
967 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
968 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
969 { 0, 0, 0, 0 }
970 };
971
972 bitmask_transtbl cflag_tbl[] = {
973 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
974 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
975 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
976 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
977 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
978 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
979 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
980 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
981 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
982 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
983 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
984 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
985 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
986 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
987 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
988 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
989 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
990 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
991 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
992 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
993 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
994 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
995 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
996 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
997 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
998 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
999 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1000 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1001 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1002 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1003 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1004 { 0, 0, 0, 0 }
1005 };
1006
1007 bitmask_transtbl lflag_tbl[] = {
1008 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1009 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1010 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1011 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1012 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1013 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1014 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1015 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1016 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1017 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1018 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1019 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1020 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1021 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1022 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1023 { 0, 0, 0, 0 }
1024 };
1025
1026 static void target_to_host_termios (void *dst, const void *src)
1027 {
1028 struct host_termios *host = dst;
1029 const struct target_termios *target = src;
1030
1031 host->c_iflag =
1032 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1033 host->c_oflag =
1034 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1035 host->c_cflag =
1036 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1037 host->c_lflag =
1038 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1039 host->c_line = target->c_line;
1040
1041 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1042 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1043 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1044 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1045 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1046 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1047 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1048 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1049 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1050 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1051 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1052 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1053 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1054 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1055 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1056 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1057 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1058 }
1059
1060 static void host_to_target_termios (void *dst, const void *src)
1061 {
1062 struct target_termios *target = dst;
1063 const struct host_termios *host = src;
1064
1065 target->c_iflag =
1066 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1067 target->c_oflag =
1068 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1069 target->c_cflag =
1070 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1071 target->c_lflag =
1072 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1073 target->c_line = host->c_line;
1074
1075 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1076 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1077 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1078 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1079 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1080 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1081 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1082 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1083 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1084 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1085 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1086 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1087 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1088 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1089 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1090 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1091 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1092 }
1093
1094 StructEntry struct_termios_def = {
1095 .convert = { host_to_target_termios, target_to_host_termios },
1096 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1097 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1098 };
1099
1100 static bitmask_transtbl mmap_flags_tbl[] = {
1101 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1102 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1103 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1104 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1105 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1106 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1107 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1108 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1109 { 0, 0, 0, 0 }
1110 };
1111
1112 #if defined(TARGET_I386)
1113
1114 /* NOTE: there is really one LDT for all the threads */
1115 uint8_t *ldt_table;
1116
1117 static int read_ldt(void *ptr, unsigned long bytecount)
1118 {
1119 int size;
1120
1121 if (!ldt_table)
1122 return 0;
1123 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1124 if (size > bytecount)
1125 size = bytecount;
1126 memcpy(ptr, ldt_table, size);
1127 return size;
1128 }
1129
1130 /* XXX: add locking support */
1131 static int write_ldt(CPUX86State *env,
1132 void *ptr, unsigned long bytecount, int oldmode)
1133 {
1134 struct target_modify_ldt_ldt_s ldt_info;
1135 int seg_32bit, contents, read_exec_only, limit_in_pages;
1136 int seg_not_present, useable;
1137 uint32_t *lp, entry_1, entry_2;
1138
1139 if (bytecount != sizeof(ldt_info))
1140 return -EINVAL;
1141 memcpy(&ldt_info, ptr, sizeof(ldt_info));
1142 tswap32s(&ldt_info.entry_number);
1143 tswapls((long *)&ldt_info.base_addr);
1144 tswap32s(&ldt_info.limit);
1145 tswap32s(&ldt_info.flags);
1146
1147 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1148 return -EINVAL;
1149 seg_32bit = ldt_info.flags & 1;
1150 contents = (ldt_info.flags >> 1) & 3;
1151 read_exec_only = (ldt_info.flags >> 3) & 1;
1152 limit_in_pages = (ldt_info.flags >> 4) & 1;
1153 seg_not_present = (ldt_info.flags >> 5) & 1;
1154 useable = (ldt_info.flags >> 6) & 1;
1155
1156 if (contents == 3) {
1157 if (oldmode)
1158 return -EINVAL;
1159 if (seg_not_present == 0)
1160 return -EINVAL;
1161 }
1162 /* allocate the LDT */
1163 if (!ldt_table) {
1164 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1165 if (!ldt_table)
1166 return -ENOMEM;
1167 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1168 env->ldt.base = ldt_table;
1169 env->ldt.limit = 0xffff;
1170 }
1171
1172 /* NOTE: same code as Linux kernel */
1173 /* Allow LDTs to be cleared by the user. */
1174 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1175 if (oldmode ||
1176 (contents == 0 &&
1177 read_exec_only == 1 &&
1178 seg_32bit == 0 &&
1179 limit_in_pages == 0 &&
1180 seg_not_present == 1 &&
1181 useable == 0 )) {
1182 entry_1 = 0;
1183 entry_2 = 0;
1184 goto install;
1185 }
1186 }
1187
1188 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1189 (ldt_info.limit & 0x0ffff);
1190 entry_2 = (ldt_info.base_addr & 0xff000000) |
1191 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1192 (ldt_info.limit & 0xf0000) |
1193 ((read_exec_only ^ 1) << 9) |
1194 (contents << 10) |
1195 ((seg_not_present ^ 1) << 15) |
1196 (seg_32bit << 22) |
1197 (limit_in_pages << 23) |
1198 0x7000;
1199 if (!oldmode)
1200 entry_2 |= (useable << 20);
1201
1202 /* Install the new entry ... */
1203 install:
1204 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1205 lp[0] = tswap32(entry_1);
1206 lp[1] = tswap32(entry_2);
1207 return 0;
1208 }
1209
1210 /* specific and weird i386 syscalls */
1211 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1212 {
1213 int ret = -ENOSYS;
1214
1215 switch (func) {
1216 case 0:
1217 ret = read_ldt(ptr, bytecount);
1218 break;
1219 case 1:
1220 ret = write_ldt(env, ptr, bytecount, 1);
1221 break;
1222 case 0x11:
1223 ret = write_ldt(env, ptr, bytecount, 0);
1224 break;
1225 }
1226 return ret;
1227 }
1228
1229 #endif /* defined(TARGET_I386) */
1230
1231 /* this stack is the equivalent of the kernel stack associated with a
1232 thread/process */
1233 #define NEW_STACK_SIZE 8192
1234
1235 static int clone_func(void *arg)
1236 {
1237 CPUState *env = arg;
1238 cpu_loop(env);
1239 /* never exits */
1240 return 0;
1241 }
1242
1243 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1244 {
1245 int ret;
1246 TaskState *ts;
1247 uint8_t *new_stack;
1248 CPUState *new_env;
1249
1250 if (flags & CLONE_VM) {
1251 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1252 memset(ts, 0, sizeof(TaskState));
1253 new_stack = ts->stack;
1254 ts->used = 1;
1255 /* add in task state list */
1256 ts->next = first_task_state;
1257 first_task_state = ts;
1258 /* we create a new CPU instance. */
1259 new_env = cpu_init();
1260 memcpy(new_env, env, sizeof(CPUState));
1261 #if defined(TARGET_I386)
1262 if (!newsp)
1263 newsp = env->regs[R_ESP];
1264 new_env->regs[R_ESP] = newsp;
1265 new_env->regs[R_EAX] = 0;
1266 #elif defined(TARGET_ARM)
1267 if (!newsp)
1268 newsp = env->regs[13];
1269 new_env->regs[13] = newsp;
1270 new_env->regs[0] = 0;
1271 #elif defined(TARGET_SPARC)
1272 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1273 #elif defined(TARGET_PPC)
1274 if (!newsp)
1275 newsp = env->gpr[1];
1276 new_env->gpr[1] = newsp;
1277 {
1278 int i;
1279 for (i = 7; i < 32; i++)
1280 new_env->gpr[i] = 0;
1281 }
1282 #else
1283 #error unsupported target CPU
1284 #endif
1285 new_env->opaque = ts;
1286 #ifdef __ia64__
1287 ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1288 #else
1289 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1290 #endif
1291 } else {
1292 /* if no CLONE_VM, we consider it is a fork */
1293 if ((flags & ~CSIGNAL) != 0)
1294 return -EINVAL;
1295 ret = fork();
1296 }
1297 return ret;
1298 }
1299
1300 static long do_fcntl(int fd, int cmd, unsigned long arg)
1301 {
1302 struct flock fl;
1303 struct target_flock *target_fl = (void *)arg;
1304 long ret;
1305
1306 switch(cmd) {
1307 case TARGET_F_GETLK:
1308 ret = fcntl(fd, cmd, &fl);
1309 if (ret == 0) {
1310 target_fl->l_type = tswap16(fl.l_type);
1311 target_fl->l_whence = tswap16(fl.l_whence);
1312 target_fl->l_start = tswapl(fl.l_start);
1313 target_fl->l_len = tswapl(fl.l_len);
1314 target_fl->l_pid = tswapl(fl.l_pid);
1315 }
1316 break;
1317
1318 case TARGET_F_SETLK:
1319 case TARGET_F_SETLKW:
1320 fl.l_type = tswap16(target_fl->l_type);
1321 fl.l_whence = tswap16(target_fl->l_whence);
1322 fl.l_start = tswapl(target_fl->l_start);
1323 fl.l_len = tswapl(target_fl->l_len);
1324 fl.l_pid = tswapl(target_fl->l_pid);
1325 ret = fcntl(fd, cmd, &fl);
1326 break;
1327
1328 case TARGET_F_GETLK64:
1329 case TARGET_F_SETLK64:
1330 case TARGET_F_SETLKW64:
1331 ret = -1;
1332 errno = EINVAL;
1333 break;
1334
1335 default:
1336 ret = fcntl(fd, cmd, arg);
1337 break;
1338 }
1339 return ret;
1340 }
1341
1342 #ifdef USE_UID16
1343
1344 static inline int high2lowuid(int uid)
1345 {
1346 if (uid > 65535)
1347 return 65534;
1348 else
1349 return uid;
1350 }
1351
1352 static inline int high2lowgid(int gid)
1353 {
1354 if (gid > 65535)
1355 return 65534;
1356 else
1357 return gid;
1358 }
1359
1360 static inline int low2highuid(int uid)
1361 {
1362 if ((int16_t)uid == -1)
1363 return -1;
1364 else
1365 return uid;
1366 }
1367
1368 static inline int low2highgid(int gid)
1369 {
1370 if ((int16_t)gid == -1)
1371 return -1;
1372 else
1373 return gid;
1374 }
1375
1376 #endif /* USE_UID16 */
1377
1378 void syscall_init(void)
1379 {
1380 IOCTLEntry *ie;
1381 const argtype *arg_type;
1382 int size;
1383
1384 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1385 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1386 #include "syscall_types.h"
1387 #undef STRUCT
1388 #undef STRUCT_SPECIAL
1389
1390 /* we patch the ioctl size if necessary. We rely on the fact that
1391 no ioctl has all the bits at '1' in the size field */
1392 ie = ioctl_entries;
1393 while (ie->target_cmd != 0) {
1394 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1395 TARGET_IOC_SIZEMASK) {
1396 arg_type = ie->arg_type;
1397 if (arg_type[0] != TYPE_PTR) {
1398 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1399 ie->target_cmd);
1400 exit(1);
1401 }
1402 arg_type++;
1403 size = thunk_type_size(arg_type, 0);
1404 ie->target_cmd = (ie->target_cmd &
1405 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1406 (size << TARGET_IOC_SIZESHIFT);
1407 }
1408 /* automatic consistency check if same arch */
1409 #if defined(__i386__) && defined(TARGET_I386)
1410 if (ie->target_cmd != ie->host_cmd) {
1411 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1412 ie->target_cmd, ie->host_cmd);
1413 }
1414 #endif
1415 ie++;
1416 }
1417 }
1418
1419 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1420 long arg4, long arg5, long arg6)
1421 {
1422 long ret;
1423 struct stat st;
1424 struct kernel_statfs *stfs;
1425
1426 #ifdef DEBUG
1427 gemu_log("syscall %d\n", num);
1428 #endif
1429 switch(num) {
1430 case TARGET_NR_exit:
1431 #ifdef HAVE_GPROF
1432 _mcleanup();
1433 #endif
1434 /* XXX: should free thread stack and CPU env */
1435 _exit(arg1);
1436 ret = 0; /* avoid warning */
1437 break;
1438 case TARGET_NR_read:
1439 page_unprotect_range((void *)arg2, arg3);
1440 ret = get_errno(read(arg1, (void *)arg2, arg3));
1441 break;
1442 case TARGET_NR_write:
1443 ret = get_errno(write(arg1, (void *)arg2, arg3));
1444 break;
1445 case TARGET_NR_open:
1446 ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1447 break;
1448 case TARGET_NR_close:
1449 ret = get_errno(close(arg1));
1450 break;
1451 case TARGET_NR_brk:
1452 ret = do_brk((char *)arg1);
1453 break;
1454 case TARGET_NR_fork:
1455 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1456 break;
1457 case TARGET_NR_waitpid:
1458 {
1459 int *status = (int *)arg2;
1460 ret = get_errno(waitpid(arg1, status, arg3));
1461 if (!is_error(ret) && status)
1462 tswapls((long *)&status);
1463 }
1464 break;
1465 case TARGET_NR_creat:
1466 ret = get_errno(creat((const char *)arg1, arg2));
1467 break;
1468 case TARGET_NR_link:
1469 ret = get_errno(link((const char *)arg1, (const char *)arg2));
1470 break;
1471 case TARGET_NR_unlink:
1472 ret = get_errno(unlink((const char *)arg1));
1473 break;
1474 case TARGET_NR_execve:
1475 {
1476 char **argp, **envp;
1477 int argc, envc;
1478 uint32_t *p;
1479 char **q;
1480
1481 argc = 0;
1482 for (p = (void *)arg2; *p; p++)
1483 argc++;
1484 envc = 0;
1485 for (p = (void *)arg3; *p; p++)
1486 envc++;
1487
1488 argp = alloca((argc + 1) * sizeof(void *));
1489 envp = alloca((envc + 1) * sizeof(void *));
1490
1491 for (p = (void *)arg2, q = argp; *p; p++, q++)
1492 *q = (void *)tswap32(*p);
1493 *q = NULL;
1494
1495 for (p = (void *)arg3, q = envp; *p; p++, q++)
1496 *q = (void *)tswap32(*p);
1497 *q = NULL;
1498
1499 ret = get_errno(execve((const char *)arg1, argp, envp));
1500 }
1501 break;
1502 case TARGET_NR_chdir:
1503 ret = get_errno(chdir((const char *)arg1));
1504 break;
1505 case TARGET_NR_time:
1506 {
1507 int *time_ptr = (int *)arg1;
1508 ret = get_errno(time((time_t *)time_ptr));
1509 if (!is_error(ret) && time_ptr)
1510 tswap32s(time_ptr);
1511 }
1512 break;
1513 case TARGET_NR_mknod:
1514 ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1515 break;
1516 case TARGET_NR_chmod:
1517 ret = get_errno(chmod((const char *)arg1, arg2));
1518 break;
1519 #ifdef TARGET_NR_break
1520 case TARGET_NR_break:
1521 goto unimplemented;
1522 #endif
1523 #ifdef TARGET_NR_oldstat
1524 case TARGET_NR_oldstat:
1525 goto unimplemented;
1526 #endif
1527 case TARGET_NR_lseek:
1528 ret = get_errno(lseek(arg1, arg2, arg3));
1529 break;
1530 case TARGET_NR_getpid:
1531 ret = get_errno(getpid());
1532 break;
1533 case TARGET_NR_mount:
1534 /* need to look at the data field */
1535 goto unimplemented;
1536 case TARGET_NR_umount:
1537 ret = get_errno(umount((const char *)arg1));
1538 break;
1539 case TARGET_NR_stime:
1540 {
1541 int *time_ptr = (int *)arg1;
1542 if (time_ptr)
1543 tswap32s(time_ptr);
1544 ret = get_errno(stime((time_t *)time_ptr));
1545 }
1546 break;
1547 case TARGET_NR_ptrace:
1548 goto unimplemented;
1549 case TARGET_NR_alarm:
1550 ret = alarm(arg1);
1551 break;
1552 #ifdef TARGET_NR_oldfstat
1553 case TARGET_NR_oldfstat:
1554 goto unimplemented;
1555 #endif
1556 case TARGET_NR_pause:
1557 ret = get_errno(pause());
1558 break;
1559 case TARGET_NR_utime:
1560 {
1561 struct utimbuf tbuf;
1562 struct target_utimbuf *target_tbuf = (void *)arg2;
1563 tbuf.actime = tswapl(target_tbuf->actime);
1564 tbuf.modtime = tswapl(target_tbuf->modtime);
1565 ret = get_errno(utime((const char *)arg1, &tbuf));
1566 }
1567 break;
1568 #ifdef TARGET_NR_stty
1569 case TARGET_NR_stty:
1570 goto unimplemented;
1571 #endif
1572 #ifdef TARGET_NR_gtty
1573 case TARGET_NR_gtty:
1574 goto unimplemented;
1575 #endif
1576 case TARGET_NR_access:
1577 ret = get_errno(access((const char *)arg1, arg2));
1578 break;
1579 case TARGET_NR_nice:
1580 ret = get_errno(nice(arg1));
1581 break;
1582 #ifdef TARGET_NR_ftime
1583 case TARGET_NR_ftime:
1584 goto unimplemented;
1585 #endif
1586 case TARGET_NR_sync:
1587 sync();
1588 ret = 0;
1589 break;
1590 case TARGET_NR_kill:
1591 ret = get_errno(kill(arg1, arg2));
1592 break;
1593 case TARGET_NR_rename:
1594 ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1595 break;
1596 case TARGET_NR_mkdir:
1597 ret = get_errno(mkdir((const char *)arg1, arg2));
1598 break;
1599 case TARGET_NR_rmdir:
1600 ret = get_errno(rmdir((const char *)arg1));
1601 break;
1602 case TARGET_NR_dup:
1603 ret = get_errno(dup(arg1));
1604 break;
1605 case TARGET_NR_pipe:
1606 {
1607 int *pipe_ptr = (int *)arg1;
1608 ret = get_errno(pipe(pipe_ptr));
1609 if (!is_error(ret)) {
1610 tswap32s(&pipe_ptr[0]);
1611 tswap32s(&pipe_ptr[1]);
1612 }
1613 }
1614 break;
1615 case TARGET_NR_times:
1616 {
1617 struct target_tms *tmsp = (void *)arg1;
1618 struct tms tms;
1619 ret = get_errno(times(&tms));
1620 if (tmsp) {
1621 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1622 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1623 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1624 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1625 }
1626 if (!is_error(ret))
1627 ret = host_to_target_clock_t(ret);
1628 }
1629 break;
1630 #ifdef TARGET_NR_prof
1631 case TARGET_NR_prof:
1632 goto unimplemented;
1633 #endif
1634 case TARGET_NR_signal:
1635 goto unimplemented;
1636
1637 case TARGET_NR_acct:
1638 goto unimplemented;
1639 case TARGET_NR_umount2:
1640 ret = get_errno(umount2((const char *)arg1, arg2));
1641 break;
1642 #ifdef TARGET_NR_lock
1643 case TARGET_NR_lock:
1644 goto unimplemented;
1645 #endif
1646 case TARGET_NR_ioctl:
1647 ret = do_ioctl(arg1, arg2, arg3);
1648 break;
1649 case TARGET_NR_fcntl:
1650 ret = get_errno(do_fcntl(arg1, arg2, arg3));
1651 break;
1652 #ifdef TARGET_NR_mpx
1653 case TARGET_NR_mpx:
1654 goto unimplemented;
1655 #endif
1656 case TARGET_NR_setpgid:
1657 ret = get_errno(setpgid(arg1, arg2));
1658 break;
1659 #ifdef TARGET_NR_ulimit
1660 case TARGET_NR_ulimit:
1661 goto unimplemented;
1662 #endif
1663 #ifdef TARGET_NR_oldolduname
1664 case TARGET_NR_oldolduname:
1665 goto unimplemented;
1666 #endif
1667 case TARGET_NR_umask:
1668 ret = get_errno(umask(arg1));
1669 break;
1670 case TARGET_NR_chroot:
1671 ret = get_errno(chroot((const char *)arg1));
1672 break;
1673 case TARGET_NR_ustat:
1674 goto unimplemented;
1675 case TARGET_NR_dup2:
1676 ret = get_errno(dup2(arg1, arg2));
1677 break;
1678 case TARGET_NR_getppid:
1679 ret = get_errno(getppid());
1680 break;
1681 case TARGET_NR_getpgrp:
1682 ret = get_errno(getpgrp());
1683 break;
1684 case TARGET_NR_setsid:
1685 ret = get_errno(setsid());
1686 break;
1687 case TARGET_NR_sigaction:
1688 {
1689 struct target_old_sigaction *old_act = (void *)arg2;
1690 struct target_old_sigaction *old_oact = (void *)arg3;
1691 struct target_sigaction act, oact, *pact;
1692 if (old_act) {
1693 act._sa_handler = old_act->_sa_handler;
1694 target_siginitset(&act.sa_mask, old_act->sa_mask);
1695 act.sa_flags = old_act->sa_flags;
1696 act.sa_restorer = old_act->sa_restorer;
1697 pact = &act;
1698 } else {
1699 pact = NULL;
1700 }
1701 ret = get_errno(do_sigaction(arg1, pact, &oact));
1702 if (!is_error(ret) && old_oact) {
1703 old_oact->_sa_handler = oact._sa_handler;
1704 old_oact->sa_mask = oact.sa_mask.sig[0];
1705 old_oact->sa_flags = oact.sa_flags;
1706 old_oact->sa_restorer = oact.sa_restorer;
1707 }
1708 }
1709 break;
1710 case TARGET_NR_rt_sigaction:
1711 ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1712 break;
1713 case TARGET_NR_sgetmask:
1714 {
1715 sigset_t cur_set;
1716 target_ulong target_set;
1717 sigprocmask(0, NULL, &cur_set);
1718 host_to_target_old_sigset(&target_set, &cur_set);
1719 ret = target_set;
1720 }
1721 break;
1722 case TARGET_NR_ssetmask:
1723 {
1724 sigset_t set, oset, cur_set;
1725 target_ulong target_set = arg1;
1726 sigprocmask(0, NULL, &cur_set);
1727 target_to_host_old_sigset(&set, &target_set);
1728 sigorset(&set, &set, &cur_set);
1729 sigprocmask(SIG_SETMASK, &set, &oset);
1730 host_to_target_old_sigset(&target_set, &oset);
1731 ret = target_set;
1732 }
1733 break;
1734 case TARGET_NR_sigprocmask:
1735 {
1736 int how = arg1;
1737 sigset_t set, oldset, *set_ptr;
1738 target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1739
1740 if (pset) {
1741 switch(how) {
1742 case TARGET_SIG_BLOCK:
1743 how = SIG_BLOCK;
1744 break;
1745 case TARGET_SIG_UNBLOCK:
1746 how = SIG_UNBLOCK;
1747 break;
1748 case TARGET_SIG_SETMASK:
1749 how = SIG_SETMASK;
1750 break;
1751 default:
1752 ret = -EINVAL;
1753 goto fail;
1754 }
1755 target_to_host_old_sigset(&set, pset);
1756 set_ptr = &set;
1757 } else {
1758 how = 0;
1759 set_ptr = NULL;
1760 }
1761 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1762 if (!is_error(ret) && poldset) {
1763 host_to_target_old_sigset(poldset, &oldset);
1764 }
1765 }
1766 break;
1767 case TARGET_NR_rt_sigprocmask:
1768 {
1769 int how = arg1;
1770 sigset_t set, oldset, *set_ptr;
1771 target_sigset_t *pset = (void *)arg2;
1772 target_sigset_t *poldset = (void *)arg3;
1773
1774 if (pset) {
1775 switch(how) {
1776 case TARGET_SIG_BLOCK:
1777 how = SIG_BLOCK;
1778 break;
1779 case TARGET_SIG_UNBLOCK:
1780 how = SIG_UNBLOCK;
1781 break;
1782 case TARGET_SIG_SETMASK:
1783 how = SIG_SETMASK;
1784 break;
1785 default:
1786 ret = -EINVAL;
1787 goto fail;
1788 }
1789 target_to_host_sigset(&set, pset);
1790 set_ptr = &set;
1791 } else {
1792 how = 0;
1793 set_ptr = NULL;
1794 }
1795 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1796 if (!is_error(ret) && poldset) {
1797 host_to_target_sigset(poldset, &oldset);
1798 }
1799 }
1800 break;
1801 case TARGET_NR_sigpending:
1802 {
1803 sigset_t set;
1804 ret = get_errno(sigpending(&set));
1805 if (!is_error(ret)) {
1806 host_to_target_old_sigset((target_ulong *)arg1, &set);
1807 }
1808 }
1809 break;
1810 case TARGET_NR_rt_sigpending:
1811 {
1812 sigset_t set;
1813 ret = get_errno(sigpending(&set));
1814 if (!is_error(ret)) {
1815 host_to_target_sigset((target_sigset_t *)arg1, &set);
1816 }
1817 }
1818 break;
1819 case TARGET_NR_sigsuspend:
1820 {
1821 sigset_t set;
1822 target_to_host_old_sigset(&set, (target_ulong *)arg1);
1823 ret = get_errno(sigsuspend(&set));
1824 }
1825 break;
1826 case TARGET_NR_rt_sigsuspend:
1827 {
1828 sigset_t set;
1829 target_to_host_sigset(&set, (target_sigset_t *)arg1);
1830 ret = get_errno(sigsuspend(&set));
1831 }
1832 break;
1833 case TARGET_NR_rt_sigtimedwait:
1834 {
1835 target_sigset_t *target_set = (void *)arg1;
1836 target_siginfo_t *target_uinfo = (void *)arg2;
1837 struct target_timespec *target_uts = (void *)arg3;
1838 sigset_t set;
1839 struct timespec uts, *puts;
1840 siginfo_t uinfo;
1841
1842 target_to_host_sigset(&set, target_set);
1843 if (target_uts) {
1844 puts = &uts;
1845 puts->tv_sec = tswapl(target_uts->tv_sec);
1846 puts->tv_nsec = tswapl(target_uts->tv_nsec);
1847 } else {
1848 puts = NULL;
1849 }
1850 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1851 if (!is_error(ret) && target_uinfo) {
1852 host_to_target_siginfo(target_uinfo, &uinfo);
1853 }
1854 }
1855 break;
1856 case TARGET_NR_rt_sigqueueinfo:
1857 {
1858 siginfo_t uinfo;
1859 target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1860 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1861 }
1862 break;
1863 case TARGET_NR_sigreturn:
1864 /* NOTE: ret is eax, so not transcoding must be done */
1865 ret = do_sigreturn(cpu_env);
1866 break;
1867 case TARGET_NR_rt_sigreturn:
1868 /* NOTE: ret is eax, so not transcoding must be done */
1869 ret = do_rt_sigreturn(cpu_env);
1870 break;
1871 case TARGET_NR_sethostname:
1872 ret = get_errno(sethostname((const char *)arg1, arg2));
1873 break;
1874 case TARGET_NR_setrlimit:
1875 {
1876 /* XXX: convert resource ? */
1877 int resource = arg1;
1878 struct target_rlimit *target_rlim = (void *)arg2;
1879 struct rlimit rlim;
1880 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1881 rlim.rlim_max = tswapl(target_rlim->rlim_max);
1882 ret = get_errno(setrlimit(resource, &rlim));
1883 }
1884 break;
1885 case TARGET_NR_getrlimit:
1886 {
1887 /* XXX: convert resource ? */
1888 int resource = arg1;
1889 struct target_rlimit *target_rlim = (void *)arg2;
1890 struct rlimit rlim;
1891
1892 ret = get_errno(getrlimit(resource, &rlim));
1893 if (!is_error(ret)) {
1894 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1895 target_rlim->rlim_max = tswapl(rlim.rlim_max);
1896 }
1897 }
1898 break;
1899 case TARGET_NR_getrusage:
1900 {
1901 struct rusage rusage;
1902 struct target_rusage *target_rusage = (void *)arg2;
1903 ret = get_errno(getrusage(arg1, &rusage));
1904 if (!is_error(ret)) {
1905 host_to_target_rusage(target_rusage, &rusage);
1906 }
1907 }
1908 break;
1909 case TARGET_NR_gettimeofday:
1910 {
1911 struct target_timeval *target_tv = (void *)arg1;
1912 struct timeval tv;
1913 ret = get_errno(gettimeofday(&tv, NULL));
1914 if (!is_error(ret)) {
1915 host_to_target_timeval(target_tv, &tv);
1916 }
1917 }
1918 break;
1919 case TARGET_NR_settimeofday:
1920 {
1921 struct target_timeval *target_tv = (void *)arg1;
1922 struct timeval tv;
1923 target_to_host_timeval(&tv, target_tv);
1924 ret = get_errno(settimeofday(&tv, NULL));
1925 }
1926 break;
1927 case TARGET_NR_select:
1928 {
1929 struct target_sel_arg_struct *sel = (void *)arg1;
1930 sel->n = tswapl(sel->n);
1931 sel->inp = tswapl(sel->inp);
1932 sel->outp = tswapl(sel->outp);
1933 sel->exp = tswapl(sel->exp);
1934 sel->tvp = tswapl(sel->tvp);
1935 ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
1936 (void *)sel->exp, (void *)sel->tvp);
1937 }
1938 break;
1939 case TARGET_NR_symlink:
1940 ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1941 break;
1942 #ifdef TARGET_NR_oldlstat
1943 case TARGET_NR_oldlstat:
1944 goto unimplemented;
1945 #endif
1946 case TARGET_NR_readlink:
1947 ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1948 break;
1949 case TARGET_NR_uselib:
1950 goto unimplemented;
1951 case TARGET_NR_swapon:
1952 ret = get_errno(swapon((const char *)arg1, arg2));
1953 break;
1954 case TARGET_NR_reboot:
1955 goto unimplemented;
1956 case TARGET_NR_readdir:
1957 goto unimplemented;
1958 case TARGET_NR_mmap:
1959 #if defined(TARGET_I386) || defined(TARGET_ARM)
1960 {
1961 uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1962 vptr = (uint32_t *)arg1;
1963 v1 = tswap32(vptr[0]);
1964 v2 = tswap32(vptr[1]);
1965 v3 = tswap32(vptr[2]);
1966 v4 = tswap32(vptr[3]);
1967 v5 = tswap32(vptr[4]);
1968 v6 = tswap32(vptr[5]);
1969 ret = get_errno(target_mmap(v1, v2, v3,
1970 target_to_host_bitmask(v4, mmap_flags_tbl),
1971 v5, v6));
1972 }
1973 #else
1974 ret = get_errno(target_mmap(arg1, arg2, arg3,
1975 target_to_host_bitmask(arg4, mmap_flags_tbl),
1976 arg5,
1977 arg6));
1978 #endif
1979 break;
1980 case TARGET_NR_mmap2:
1981 ret = get_errno(target_mmap(arg1, arg2, arg3,
1982 target_to_host_bitmask(arg4, mmap_flags_tbl),
1983 arg5,
1984 arg6 << TARGET_PAGE_BITS));
1985 break;
1986 case TARGET_NR_munmap:
1987 ret = get_errno(target_munmap(arg1, arg2));
1988 break;
1989 case TARGET_NR_mprotect:
1990 ret = get_errno(target_mprotect(arg1, arg2, arg3));
1991 break;
1992 case TARGET_NR_mremap:
1993 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
1994 break;
1995 case TARGET_NR_msync:
1996 ret = get_errno(msync((void *)arg1, arg2, arg3));
1997 break;
1998 case TARGET_NR_mlock:
1999 ret = get_errno(mlock((void *)arg1, arg2));
2000 break;
2001 case TARGET_NR_munlock:
2002 ret = get_errno(munlock((void *)arg1, arg2));
2003 break;
2004 case TARGET_NR_mlockall:
2005 ret = get_errno(mlockall(arg1));
2006 break;
2007 case TARGET_NR_munlockall:
2008 ret = get_errno(munlockall());
2009 break;
2010 case TARGET_NR_truncate:
2011 ret = get_errno(truncate((const char *)arg1, arg2));
2012 break;
2013 case TARGET_NR_ftruncate:
2014 ret = get_errno(ftruncate(arg1, arg2));
2015 break;
2016 case TARGET_NR_fchmod:
2017 ret = get_errno(fchmod(arg1, arg2));
2018 break;
2019 case TARGET_NR_getpriority:
2020 ret = get_errno(getpriority(arg1, arg2));
2021 break;
2022 case TARGET_NR_setpriority:
2023 ret = get_errno(setpriority(arg1, arg2, arg3));
2024 break;
2025 #ifdef TARGET_NR_profil
2026 case TARGET_NR_profil:
2027 goto unimplemented;
2028 #endif
2029 case TARGET_NR_statfs:
2030 stfs = (void *)arg2;
2031 ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2032 convert_statfs:
2033 if (!is_error(ret)) {
2034 tswap32s(&stfs->f_type);
2035 tswap32s(&stfs->f_bsize);
2036 tswap32s(&stfs->f_blocks);
2037 tswap32s(&stfs->f_bfree);
2038 tswap32s(&stfs->f_bavail);
2039 tswap32s(&stfs->f_files);
2040 tswap32s(&stfs->f_ffree);
2041 tswap32s(&stfs->f_fsid.val[0]);
2042 tswap32s(&stfs->f_fsid.val[1]);
2043 tswap32s(&stfs->f_namelen);
2044 }
2045 break;
2046 case TARGET_NR_fstatfs:
2047 stfs = (void *)arg2;
2048 ret = get_errno(sys_fstatfs(arg1, stfs));
2049 goto convert_statfs;
2050 #ifdef TARGET_NR_ioperm
2051 case TARGET_NR_ioperm:
2052 goto unimplemented;
2053 #endif
2054 case TARGET_NR_socketcall:
2055 ret = do_socketcall(arg1, (int32_t *)arg2);
2056 break;
2057 case TARGET_NR_syslog:
2058 goto unimplemented;
2059 case TARGET_NR_setitimer:
2060 {
2061 struct target_itimerval *target_value = (void *)arg2;
2062 struct target_itimerval *target_ovalue = (void *)arg3;
2063 struct itimerval value, ovalue, *pvalue;
2064
2065 if (target_value) {
2066 pvalue = &value;
2067 target_to_host_timeval(&pvalue->it_interval,
2068 &target_value->it_interval);
2069 target_to_host_timeval(&pvalue->it_value,
2070 &target_value->it_value);
2071 } else {
2072 pvalue = NULL;
2073 }
2074 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2075 if (!is_error(ret) && target_ovalue) {
2076 host_to_target_timeval(&target_ovalue->it_interval,
2077 &ovalue.it_interval);
2078 host_to_target_timeval(&target_ovalue->it_value,
2079 &ovalue.it_value);
2080 }
2081 }
2082 break;
2083 case TARGET_NR_getitimer:
2084 {
2085 struct target_itimerval *target_value = (void *)arg2;
2086 struct itimerval value;
2087
2088 ret = get_errno(getitimer(arg1, &value));
2089 if (!is_error(ret) && target_value) {
2090 host_to_target_timeval(&target_value->it_interval,
2091 &value.it_interval);
2092 host_to_target_timeval(&target_value->it_value,
2093 &value.it_value);
2094 }
2095 }
2096 break;
2097 case TARGET_NR_stat:
2098 ret = get_errno(stat(path((const char *)arg1), &st));
2099 goto do_stat;
2100 case TARGET_NR_lstat:
2101 ret = get_errno(lstat(path((const char *)arg1), &st));
2102 goto do_stat;
2103 case TARGET_NR_fstat:
2104 {
2105 ret = get_errno(fstat(arg1, &st));
2106 do_stat:
2107 if (!is_error(ret)) {
2108 struct target_stat *target_st = (void *)arg2;
2109 target_st->st_dev = tswap16(st.st_dev);
2110 target_st->st_ino = tswapl(st.st_ino);
2111 #if defined(TARGET_PPC)
2112 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2113 target_st->st_uid = tswap32(st.st_uid);
2114 target_st->st_gid = tswap32(st.st_gid);
2115 #else
2116 target_st->st_mode = tswap16(st.st_mode);
2117 target_st->st_uid = tswap16(st.st_uid);
2118 target_st->st_gid = tswap16(st.st_gid);
2119 #endif
2120 target_st->st_nlink = tswap16(st.st_nlink);
2121 target_st->st_rdev = tswap16(st.st_rdev);
2122 target_st->st_size = tswapl(st.st_size);
2123 target_st->st_blksize = tswapl(st.st_blksize);
2124 target_st->st_blocks = tswapl(st.st_blocks);
2125 target_st->target_st_atime = tswapl(st.st_atime);
2126 target_st->target_st_mtime = tswapl(st.st_mtime);
2127 target_st->target_st_ctime = tswapl(st.st_ctime);
2128 }
2129 }
2130 break;
2131 #ifdef TARGET_NR_olduname
2132 case TARGET_NR_olduname:
2133 goto unimplemented;
2134 #endif
2135 #ifdef TARGET_NR_iopl
2136 case TARGET_NR_iopl:
2137 goto unimplemented;
2138 #endif
2139 case TARGET_NR_vhangup:
2140 ret = get_errno(vhangup());
2141 break;
2142 #ifdef TARGET_NR_idle
2143 case TARGET_NR_idle:
2144 goto unimplemented;
2145 #endif
2146 case TARGET_NR_wait4:
2147 {
2148 int status;
2149 target_long *status_ptr = (void *)arg2;
2150 struct rusage rusage, *rusage_ptr;
2151 struct target_rusage *target_rusage = (void *)arg4;
2152 if (target_rusage)
2153 rusage_ptr = &rusage;
2154 else
2155 rusage_ptr = NULL;
2156 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2157 if (!is_error(ret)) {
2158 if (status_ptr)
2159 *status_ptr = tswap32(status);
2160 if (target_rusage) {
2161 host_to_target_rusage(target_rusage, &rusage);
2162 }
2163 }
2164 }
2165 break;
2166 case TARGET_NR_swapoff:
2167 ret = get_errno(swapoff((const char *)arg1));
2168 break;
2169 case TARGET_NR_sysinfo:
2170 goto unimplemented;
2171 case TARGET_NR_ipc:
2172 goto unimplemented;
2173 case TARGET_NR_fsync:
2174 ret = get_errno(fsync(arg1));
2175 break;
2176 case TARGET_NR_clone:
2177 ret = get_errno(do_fork(cpu_env, arg1, arg2));
2178 break;
2179 #ifdef __NR_exit_group
2180 /* new thread calls */
2181 case TARGET_NR_exit_group:
2182 ret = get_errno(exit_group(arg1));
2183 break;
2184 #endif
2185 case TARGET_NR_setdomainname:
2186 ret = get_errno(setdomainname((const char *)arg1, arg2));
2187 break;
2188 case TARGET_NR_uname:
2189 /* no need to transcode because we use the linux syscall */
2190 ret = get_errno(sys_uname((struct new_utsname *)arg1));
2191 break;
2192 #ifdef TARGET_I386
2193 case TARGET_NR_modify_ldt:
2194 ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2195 break;
2196 case TARGET_NR_vm86old:
2197 goto unimplemented;
2198 case TARGET_NR_vm86:
2199 ret = do_vm86(cpu_env, arg1, (void *)arg2);
2200 break;
2201 #endif
2202 case TARGET_NR_adjtimex:
2203 goto unimplemented;
2204 case TARGET_NR_create_module:
2205 case TARGET_NR_init_module:
2206 case TARGET_NR_delete_module:
2207 case TARGET_NR_get_kernel_syms:
2208 goto unimplemented;
2209 case TARGET_NR_quotactl:
2210 goto unimplemented;
2211 case TARGET_NR_getpgid:
2212 ret = get_errno(getpgid(arg1));
2213 break;
2214 case TARGET_NR_fchdir:
2215 ret = get_errno(fchdir(arg1));
2216 break;
2217 case TARGET_NR_bdflush:
2218 goto unimplemented;
2219 case TARGET_NR_sysfs:
2220 goto unimplemented;
2221 case TARGET_NR_personality:
2222 ret = get_errno(personality(arg1));
2223 break;
2224 case TARGET_NR_afs_syscall:
2225 goto unimplemented;
2226 case TARGET_NR__llseek:
2227 {
2228 int64_t res;
2229 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2230 *(int64_t *)arg4 = tswap64(res);
2231 }
2232 break;
2233 case TARGET_NR_getdents:
2234 #if TARGET_LONG_SIZE != 4
2235 #error not supported
2236 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2237 {
2238 struct target_dirent *target_dirp = (void *)arg2;
2239 struct dirent *dirp;
2240 long count = arg3;
2241
2242 dirp = malloc(count);
2243 if (!dirp)
2244 return -ENOMEM;
2245
2246 ret = get_errno(sys_getdents(arg1, dirp, count));
2247 if (!is_error(ret)) {
2248 struct dirent *de;
2249 struct target_dirent *tde;
2250 int len = ret;
2251 int reclen, treclen;
2252 int count1, tnamelen;
2253
2254 count1 = 0;
2255 de = dirp;
2256 tde = target_dirp;
2257 while (len > 0) {
2258 reclen = de->d_reclen;
2259 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2260 tde->d_reclen = tswap16(treclen);
2261 tde->d_ino = tswapl(de->d_ino);
2262 tde->d_off = tswapl(de->d_off);
2263 tnamelen = treclen - (2 * sizeof(target_long) + 2);
2264 if (tnamelen > 256)
2265 tnamelen = 256;
2266 strncpy(tde->d_name, de->d_name, tnamelen);
2267 de = (struct dirent *)((char *)de + reclen);
2268 len -= reclen;
2269 tde = (struct dirent *)((char *)tde + treclen);
2270 count1 += treclen;
2271 }
2272 ret = count1;
2273 }
2274 free(dirp);
2275 }
2276 #else
2277 {
2278 struct dirent *dirp = (void *)arg2;
2279 long count = arg3;
2280
2281 ret = get_errno(sys_getdents(arg1, dirp, count));
2282 if (!is_error(ret)) {
2283 struct dirent *de;
2284 int len = ret;
2285 int reclen;
2286 de = dirp;
2287 while (len > 0) {
2288 reclen = de->d_reclen;
2289 if (reclen > len)
2290 break;
2291 de->d_reclen = tswap16(reclen);
2292 tswapls(&de->d_ino);
2293 tswapls(&de->d_off);
2294 de = (struct dirent *)((char *)de + reclen);
2295 len -= reclen;
2296 }
2297 }
2298 }
2299 #endif
2300 break;
2301 case TARGET_NR_getdents64:
2302 {
2303 struct dirent64 *dirp = (void *)arg2;
2304 long count = arg3;
2305 ret = get_errno(sys_getdents64(arg1, dirp, count));
2306 if (!is_error(ret)) {
2307 struct dirent64 *de;
2308 int len = ret;
2309 int reclen;
2310 de = dirp;
2311 while (len > 0) {
2312 reclen = de->d_reclen;
2313 if (reclen > len)
2314 break;
2315 de->d_reclen = tswap16(reclen);
2316 tswap64s(&de->d_ino);
2317 tswap64s(&de->d_off);
2318 de = (struct dirent64 *)((char *)de + reclen);
2319 len -= reclen;
2320 }
2321 }
2322 }
2323 break;
2324 case TARGET_NR__newselect:
2325 ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2326 (void *)arg5);
2327 break;
2328 case TARGET_NR_poll:
2329 {
2330 struct target_pollfd *target_pfd = (void *)arg1;
2331 unsigned int nfds = arg2;
2332 int timeout = arg3;
2333 struct pollfd *pfd;
2334 unsigned int i;
2335
2336 pfd = alloca(sizeof(struct pollfd) * nfds);
2337 for(i = 0; i < nfds; i++) {
2338 pfd[i].fd = tswap32(target_pfd[i].fd);
2339 pfd[i].events = tswap16(target_pfd[i].events);
2340 }
2341 ret = get_errno(poll(pfd, nfds, timeout));
2342 if (!is_error(ret)) {
2343 for(i = 0; i < nfds; i++) {
2344 target_pfd[i].revents = tswap16(pfd[i].revents);
2345 }
2346 }
2347 }
2348 break;
2349 case TARGET_NR_flock:
2350 /* NOTE: the flock constant seems to be the same for every
2351 Linux platform */
2352 ret = get_errno(flock(arg1, arg2));
2353 break;
2354 case TARGET_NR_readv:
2355 {
2356 int count = arg3;
2357 int i;
2358 struct iovec *vec;
2359 struct target_iovec *target_vec = (void *)arg2;
2360
2361 vec = alloca(count * sizeof(struct iovec));
2362 for(i = 0;i < count; i++) {
2363 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2364 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2365 }
2366 ret = get_errno(readv(arg1, vec, count));
2367 }
2368 break;
2369 case TARGET_NR_writev:
2370 {
2371 int count = arg3;
2372 int i;
2373 struct iovec *vec;
2374 struct target_iovec *target_vec = (void *)arg2;
2375
2376 vec = alloca(count * sizeof(struct iovec));
2377 for(i = 0;i < count; i++) {
2378 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2379 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2380 }
2381 ret = get_errno(writev(arg1, vec, count));
2382 }
2383 break;
2384 case TARGET_NR_getsid:
2385 ret = get_errno(getsid(arg1));
2386 break;
2387 case TARGET_NR_fdatasync:
2388 ret = get_errno(fdatasync(arg1));
2389 break;
2390 case TARGET_NR__sysctl:
2391 goto unimplemented;
2392 case TARGET_NR_sched_setparam:
2393 {
2394 struct sched_param *target_schp = (void *)arg2;
2395 struct sched_param schp;
2396 schp.sched_priority = tswap32(target_schp->sched_priority);
2397 ret = get_errno(sched_setparam(arg1, &schp));
2398 }
2399 break;
2400 case TARGET_NR_sched_getparam:
2401 {
2402 struct sched_param *target_schp = (void *)arg2;
2403 struct sched_param schp;
2404 ret = get_errno(sched_getparam(arg1, &schp));
2405 if (!is_error(ret)) {
2406 target_schp->sched_priority = tswap32(schp.sched_priority);
2407 }
2408 }
2409 break;
2410 case TARGET_NR_sched_setscheduler:
2411 {
2412 struct sched_param *target_schp = (void *)arg3;
2413 struct sched_param schp;
2414 schp.sched_priority = tswap32(target_schp->sched_priority);
2415 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2416 }
2417 break;
2418 case TARGET_NR_sched_getscheduler:
2419 ret = get_errno(sched_getscheduler(arg1));
2420 break;
2421 case TARGET_NR_sched_yield:
2422 ret = get_errno(sched_yield());
2423 break;
2424 case TARGET_NR_sched_get_priority_max:
2425 ret = get_errno(sched_get_priority_max(arg1));
2426 break;
2427 case TARGET_NR_sched_get_priority_min:
2428 ret = get_errno(sched_get_priority_min(arg1));
2429 break;
2430 case TARGET_NR_sched_rr_get_interval:
2431 {
2432 struct target_timespec *target_ts = (void *)arg2;
2433 struct timespec ts;
2434 ret = get_errno(sched_rr_get_interval(arg1, &ts));
2435 if (!is_error(ret)) {
2436 target_ts->tv_sec = tswapl(ts.tv_sec);
2437 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2438 }
2439 }
2440 break;
2441 case TARGET_NR_nanosleep:
2442 {
2443 struct target_timespec *target_req = (void *)arg1;
2444 struct target_timespec *target_rem = (void *)arg2;
2445 struct timespec req, rem;
2446 req.tv_sec = tswapl(target_req->tv_sec);
2447 req.tv_nsec = tswapl(target_req->tv_nsec);
2448 ret = get_errno(nanosleep(&req, &rem));
2449 if (is_error(ret) && target_rem) {
2450 target_rem->tv_sec = tswapl(rem.tv_sec);
2451 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2452 }
2453 }
2454 break;
2455 case TARGET_NR_query_module:
2456 goto unimplemented;
2457 case TARGET_NR_nfsservctl:
2458 goto unimplemented;
2459 case TARGET_NR_prctl:
2460 goto unimplemented;
2461 #ifdef TARGET_NR_pread
2462 case TARGET_NR_pread:
2463 page_unprotect_range((void *)arg2, arg3);
2464 ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2465 break;
2466 case TARGET_NR_pwrite:
2467 ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2468 break;
2469 #endif
2470 case TARGET_NR_getcwd:
2471 ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2472 break;
2473 case TARGET_NR_capget:
2474 goto unimplemented;
2475 case TARGET_NR_capset:
2476 goto unimplemented;
2477 case TARGET_NR_sigaltstack:
2478 goto unimplemented;
2479 case TARGET_NR_sendfile:
2480 goto unimplemented;
2481 #ifdef TARGET_NR_getpmsg
2482 case TARGET_NR_getpmsg:
2483 goto unimplemented;
2484 #endif
2485 #ifdef TARGET_NR_putpmsg
2486 case TARGET_NR_putpmsg:
2487 goto unimplemented;
2488 #endif
2489 case TARGET_NR_vfork:
2490 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2491 break;
2492 #ifdef TARGET_NR_ugetrlimit
2493 case TARGET_NR_ugetrlimit:
2494 {
2495 struct rlimit rlim;
2496 ret = get_errno(getrlimit(arg1, &rlim));
2497 if (!is_error(ret)) {
2498 struct target_rlimit *target_rlim = (void *)arg2;
2499 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2500 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2501 }
2502 break;
2503 }
2504 #endif
2505 case TARGET_NR_truncate64:
2506 goto unimplemented;
2507 case TARGET_NR_ftruncate64:
2508 goto unimplemented;
2509 case TARGET_NR_stat64:
2510 ret = get_errno(stat(path((const char *)arg1), &st));
2511 goto do_stat64;
2512 case TARGET_NR_lstat64:
2513 ret = get_errno(lstat(path((const char *)arg1), &st));
2514 goto do_stat64;
2515 case TARGET_NR_fstat64:
2516 {
2517 ret = get_errno(fstat(arg1, &st));
2518 do_stat64:
2519 if (!is_error(ret)) {
2520 struct target_stat64 *target_st = (void *)arg2;
2521 memset(target_st, 0, sizeof(struct target_stat64));
2522 target_st->st_dev = tswap16(st.st_dev);
2523 target_st->st_ino = tswap64(st.st_ino);
2524 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2525 target_st->__st_ino = tswapl(st.st_ino);
2526 #endif
2527 target_st->st_mode = tswap32(st.st_mode);
2528 target_st->st_nlink = tswap32(st.st_nlink);
2529 target_st->st_uid = tswapl(st.st_uid);
2530 target_st->st_gid = tswapl(st.st_gid);
2531 target_st->st_rdev = tswap16(st.st_rdev);
2532 /* XXX: better use of kernel struct */
2533 target_st->st_size = tswap64(st.st_size);
2534 target_st->st_blksize = tswapl(st.st_blksize);
2535 target_st->st_blocks = tswapl(st.st_blocks);
2536 target_st->target_st_atime = tswapl(st.st_atime);
2537 target_st->target_st_mtime = tswapl(st.st_mtime);
2538 target_st->target_st_ctime = tswapl(st.st_ctime);
2539 }
2540 }
2541 break;
2542
2543 #ifdef USE_UID16
2544 case TARGET_NR_lchown:
2545 ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2546 break;
2547 case TARGET_NR_getuid:
2548 ret = get_errno(high2lowuid(getuid()));
2549 break;
2550 case TARGET_NR_getgid:
2551 ret = get_errno(high2lowgid(getgid()));
2552 break;
2553 case TARGET_NR_geteuid:
2554 ret = get_errno(high2lowuid(geteuid()));
2555 break;
2556 case TARGET_NR_getegid:
2557 ret = get_errno(high2lowgid(getegid()));
2558 break;
2559 case TARGET_NR_setreuid:
2560 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2561 break;
2562 case TARGET_NR_setregid:
2563 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2564 break;
2565 case TARGET_NR_getgroups:
2566 {
2567 int gidsetsize = arg1;
2568 uint16_t *target_grouplist = (void *)arg2;
2569 gid_t *grouplist;
2570 int i;
2571
2572 grouplist = alloca(gidsetsize * sizeof(gid_t));
2573 ret = get_errno(getgroups(gidsetsize, grouplist));
2574 if (!is_error(ret)) {
2575 for(i = 0;i < gidsetsize; i++)
2576 target_grouplist[i] = tswap16(grouplist[i]);
2577 }
2578 }
2579 break;
2580 case TARGET_NR_setgroups:
2581 {
2582 int gidsetsize = arg1;
2583 uint16_t *target_grouplist = (void *)arg2;
2584 gid_t *grouplist;
2585 int i;
2586
2587 grouplist = alloca(gidsetsize * sizeof(gid_t));
2588 for(i = 0;i < gidsetsize; i++)
2589 grouplist[i] = tswap16(target_grouplist[i]);
2590 ret = get_errno(setgroups(gidsetsize, grouplist));
2591 }
2592 break;
2593 case TARGET_NR_fchown:
2594 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2595 break;
2596 #ifdef TARGET_NR_setresuid
2597 case TARGET_NR_setresuid:
2598 ret = get_errno(setresuid(low2highuid(arg1),
2599 low2highuid(arg2),
2600 low2highuid(arg3)));
2601 break;
2602 #endif
2603 #ifdef TARGET_NR_getresuid
2604 case TARGET_NR_getresuid:
2605 {
2606 int ruid, euid, suid;
2607 ret = get_errno(getresuid(&ruid, &euid, &suid));
2608 if (!is_error(ret)) {
2609 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2610 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2611 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2612 }
2613 }
2614 break;
2615 #endif
2616 #ifdef TARGET_NR_getresgid
2617 case TARGET_NR_setresgid:
2618 ret = get_errno(setresgid(low2highgid(arg1),
2619 low2highgid(arg2),
2620 low2highgid(arg3)));
2621 break;
2622 #endif
2623 #ifdef TARGET_NR_getresgid
2624 case TARGET_NR_getresgid:
2625 {
2626 int rgid, egid, sgid;
2627 ret = get_errno(getresgid(&rgid, &egid, &sgid));
2628 if (!is_error(ret)) {
2629 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2630 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2631 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2632 }
2633 }
2634 break;
2635 #endif
2636 case TARGET_NR_chown:
2637 ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2638 break;
2639 case TARGET_NR_setuid:
2640 ret = get_errno(setuid(low2highuid(arg1)));
2641 break;
2642 case TARGET_NR_setgid:
2643 ret = get_errno(setgid(low2highgid(arg1)));
2644 break;
2645 case TARGET_NR_setfsuid:
2646 ret = get_errno(setfsuid(arg1));
2647 break;
2648 case TARGET_NR_setfsgid:
2649 ret = get_errno(setfsgid(arg1));
2650 break;
2651 #endif /* USE_UID16 */
2652
2653 case TARGET_NR_lchown32:
2654 ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2655 break;
2656 case TARGET_NR_getuid32:
2657 ret = get_errno(getuid());
2658 break;
2659 case TARGET_NR_getgid32:
2660 ret = get_errno(getgid());
2661 break;
2662 case TARGET_NR_geteuid32:
2663 ret = get_errno(geteuid());
2664 break;
2665 case TARGET_NR_getegid32:
2666 ret = get_errno(getegid());
2667 break;
2668 case TARGET_NR_setreuid32:
2669 ret = get_errno(setreuid(arg1, arg2));
2670 break;
2671 case TARGET_NR_setregid32:
2672 ret = get_errno(setregid(arg1, arg2));
2673 break;
2674 case TARGET_NR_getgroups32:
2675 goto unimplemented;
2676 case TARGET_NR_setgroups32:
2677 goto unimplemented;
2678 case TARGET_NR_fchown32:
2679 ret = get_errno(fchown(arg1, arg2, arg3));
2680 break;
2681 case TARGET_NR_setresuid32:
2682 ret = get_errno(setresuid(arg1, arg2, arg3));
2683 break;
2684 case TARGET_NR_getresuid32:
2685 {
2686 int ruid, euid, suid;
2687 ret = get_errno(getresuid(&ruid, &euid, &suid));
2688 if (!is_error(ret)) {
2689 *(uint32_t *)arg1 = tswap32(ruid);
2690 *(uint32_t *)arg2 = tswap32(euid);
2691 *(uint32_t *)arg3 = tswap32(suid);
2692 }
2693 }
2694 break;
2695 case TARGET_NR_setresgid32:
2696 ret = get_errno(setresgid(arg1, arg2, arg3));
2697 break;
2698 case TARGET_NR_getresgid32:
2699 {
2700 int rgid, egid, sgid;
2701 ret = get_errno(getresgid(&rgid, &egid, &sgid));
2702 if (!is_error(ret)) {
2703 *(uint32_t *)arg1 = tswap32(rgid);
2704 *(uint32_t *)arg2 = tswap32(egid);
2705 *(uint32_t *)arg3 = tswap32(sgid);
2706 }
2707 }
2708 break;
2709 case TARGET_NR_chown32:
2710 ret = get_errno(chown((const char *)arg1, arg2, arg3));
2711 break;
2712 case TARGET_NR_setuid32:
2713 ret = get_errno(setuid(arg1));
2714 break;
2715 case TARGET_NR_setgid32:
2716 ret = get_errno(setgid(arg1));
2717 break;
2718 case TARGET_NR_setfsuid32:
2719 ret = get_errno(setfsuid(arg1));
2720 break;
2721 case TARGET_NR_setfsgid32:
2722 ret = get_errno(setfsgid(arg1));
2723 break;
2724
2725 case TARGET_NR_pivot_root:
2726 goto unimplemented;
2727 case TARGET_NR_mincore:
2728 goto unimplemented;
2729 case TARGET_NR_madvise:
2730 goto unimplemented;
2731 #if TARGET_LONG_BITS == 32
2732 case TARGET_NR_fcntl64:
2733 {
2734 struct flock64 fl;
2735 struct target_flock64 *target_fl = (void *)arg3;
2736
2737 switch(arg2) {
2738 case F_GETLK64:
2739 ret = get_errno(fcntl(arg1, arg2, &fl));
2740 if (ret == 0) {
2741 target_fl->l_type = tswap16(fl.l_type);
2742 target_fl->l_whence = tswap16(fl.l_whence);
2743 target_fl->l_start = tswap64(fl.l_start);
2744 target_fl->l_len = tswap64(fl.l_len);
2745 target_fl->l_pid = tswapl(fl.l_pid);
2746 }
2747 break;
2748
2749 case F_SETLK64:
2750 case F_SETLKW64:
2751 fl.l_type = tswap16(target_fl->l_type);
2752 fl.l_whence = tswap16(target_fl->l_whence);
2753 fl.l_start = tswap64(target_fl->l_start);
2754 fl.l_len = tswap64(target_fl->l_len);
2755 fl.l_pid = tswapl(target_fl->l_pid);
2756 ret = get_errno(fcntl(arg1, arg2, &fl));
2757 break;
2758 default:
2759 ret = get_errno(do_fcntl(arg1, arg2, arg3));
2760 break;
2761 }
2762 break;
2763 }
2764 #endif
2765 #ifdef TARGET_NR_security
2766 case TARGET_NR_security:
2767 goto unimplemented;
2768 #endif
2769 case TARGET_NR_gettid:
2770 ret = get_errno(gettid());
2771 break;
2772 case TARGET_NR_readahead:
2773 goto unimplemented;
2774 #ifdef TARGET_NR_setxattr
2775 case TARGET_NR_setxattr:
2776 case TARGET_NR_lsetxattr:
2777 case TARGET_NR_fsetxattr:
2778 case TARGET_NR_getxattr:
2779 case TARGET_NR_lgetxattr:
2780 case TARGET_NR_fgetxattr:
2781 case TARGET_NR_listxattr:
2782 case TARGET_NR_llistxattr:
2783 case TARGET_NR_flistxattr:
2784 case TARGET_NR_removexattr:
2785 case TARGET_NR_lremovexattr:
2786 case TARGET_NR_fremovexattr:
2787 goto unimplemented_nowarn;
2788 #endif
2789 #ifdef TARGET_NR_set_thread_area
2790 case TARGET_NR_set_thread_area:
2791 case TARGET_NR_get_thread_area:
2792 goto unimplemented_nowarn;
2793 #endif
2794 default:
2795 unimplemented:
2796 gemu_log("qemu: Unsupported syscall: %d\n", num);
2797 unimplemented_nowarn:
2798 ret = -ENOSYS;
2799 break;
2800 }
2801 fail:
2802 return ret;
2803 }
2804
Qemu copy for testing