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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 <utime.h>
46 //#include <sys/user.h>
47 #include <netinet/ip.h>
48 #include <netinet/tcp.h>
49
50 #define termios host_termios
51 #define winsize host_winsize
52 #define termio host_termio
53 #define sgttyb host_sgttyb /* same as target */
54 #define tchars host_tchars /* same as target */
55 #define ltchars host_ltchars /* same as target */
56
57 #include <linux/termios.h>
58 #include <linux/unistd.h>
59 #include <linux/utsname.h>
60 #include <linux/cdrom.h>
61 #include <linux/hdreg.h>
62 #include <linux/soundcard.h>
63 #include <linux/dirent.h>
64 #include <linux/kd.h>
65
66 #include "qemu.h"
67
68 //#define DEBUG
69
70 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
71 /* 16 bit uid wrappers emulation */
72 #define USE_UID16
73 #endif
74
75 //#include <linux/msdos_fs.h>
76 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
77 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
78
79
80 #if defined(__powerpc__)
81 #undef __syscall_nr
82 #undef __sc_loadargs_0
83 #undef __sc_loadargs_1
84 #undef __sc_loadargs_2
85 #undef __sc_loadargs_3
86 #undef __sc_loadargs_4
87 #undef __sc_loadargs_5
88 #undef __sc_asm_input_0
89 #undef __sc_asm_input_1
90 #undef __sc_asm_input_2
91 #undef __sc_asm_input_3
92 #undef __sc_asm_input_4
93 #undef __sc_asm_input_5
94 #undef _syscall0
95 #undef _syscall1
96 #undef _syscall2
97 #undef _syscall3
98 #undef _syscall4
99 #undef _syscall5
100
101 /* need to redefine syscalls as Linux kernel defines are incorrect for
102 the clobber list */
103 /* On powerpc a system call basically clobbers the same registers like a
104 * function call, with the exception of LR (which is needed for the
105 * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
106 * an error return status).
107 */
108
109 #define __syscall_nr(nr, type, name, args...) \
110 unsigned long __sc_ret, __sc_err; \
111 { \
112 register unsigned long __sc_0 __asm__ ("r0"); \
113 register unsigned long __sc_3 __asm__ ("r3"); \
114 register unsigned long __sc_4 __asm__ ("r4"); \
115 register unsigned long __sc_5 __asm__ ("r5"); \
116 register unsigned long __sc_6 __asm__ ("r6"); \
117 register unsigned long __sc_7 __asm__ ("r7"); \
118 \
119 __sc_loadargs_##nr(name, args); \
120 __asm__ __volatile__ \
121 ("sc \n\t" \
122 "mfcr %0 " \
123 : "=&r" (__sc_0), \
124 "=&r" (__sc_3), "=&r" (__sc_4), \
125 "=&r" (__sc_5), "=&r" (__sc_6), \
126 "=&r" (__sc_7) \
127 : __sc_asm_input_##nr \
128 : "cr0", "ctr", "memory", \
129 "r8", "r9", "r10","r11", "r12"); \
130 __sc_ret = __sc_3; \
131 __sc_err = __sc_0; \
132 } \
133 if (__sc_err & 0x10000000) \
134 { \
135 errno = __sc_ret; \
136 __sc_ret = -1; \
137 } \
138 return (type) __sc_ret
139
140 #define __sc_loadargs_0(name, dummy...) \
141 __sc_0 = __NR_##name
142 #define __sc_loadargs_1(name, arg1) \
143 __sc_loadargs_0(name); \
144 __sc_3 = (unsigned long) (arg1)
145 #define __sc_loadargs_2(name, arg1, arg2) \
146 __sc_loadargs_1(name, arg1); \
147 __sc_4 = (unsigned long) (arg2)
148 #define __sc_loadargs_3(name, arg1, arg2, arg3) \
149 __sc_loadargs_2(name, arg1, arg2); \
150 __sc_5 = (unsigned long) (arg3)
151 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4) \
152 __sc_loadargs_3(name, arg1, arg2, arg3); \
153 __sc_6 = (unsigned long) (arg4)
154 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5) \
155 __sc_loadargs_4(name, arg1, arg2, arg3, arg4); \
156 __sc_7 = (unsigned long) (arg5)
157
158 #define __sc_asm_input_0 "0" (__sc_0)
159 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
160 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
161 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
162 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
163 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
164
165 #define _syscall0(type,name) \
166 type name(void) \
167 { \
168 __syscall_nr(0, type, name); \
169 }
170
171 #define _syscall1(type,name,type1,arg1) \
172 type name(type1 arg1) \
173 { \
174 __syscall_nr(1, type, name, arg1); \
175 }
176
177 #define _syscall2(type,name,type1,arg1,type2,arg2) \
178 type name(type1 arg1, type2 arg2) \
179 { \
180 __syscall_nr(2, type, name, arg1, arg2); \
181 }
182
183 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
184 type name(type1 arg1, type2 arg2, type3 arg3) \
185 { \
186 __syscall_nr(3, type, name, arg1, arg2, arg3); \
187 }
188
189 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
190 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
191 { \
192 __syscall_nr(4, type, name, arg1, arg2, arg3, arg4); \
193 }
194
195 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
196 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
197 { \
198 __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5); \
199 }
200 #endif
201
202 #define __NR_sys_uname __NR_uname
203 #define __NR_sys_getcwd1 __NR_getcwd
204 #define __NR_sys_statfs __NR_statfs
205 #define __NR_sys_fstatfs __NR_fstatfs
206 #define __NR_sys_getdents __NR_getdents
207 #define __NR_sys_getdents64 __NR_getdents64
208 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
209
210 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
211 #define __NR__llseek __NR_lseek
212 #endif
213
214 #ifdef __NR_gettid
215 _syscall0(int, gettid)
216 #else
217 static int gettid(void) {
218 return -ENOSYS;
219 }
220 #endif
221 _syscall1(int,sys_uname,struct new_utsname *,buf)
222 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
223 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
224 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
225 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
226 loff_t *, res, uint, wh);
227 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
228 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
229 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
230 #ifdef __NR_exit_group
231 _syscall1(int,exit_group,int,error_code)
232 #endif
233
234 extern int personality(int);
235 extern int flock(int, int);
236 extern int setfsuid(int);
237 extern int setfsgid(int);
238 extern int setresuid(uid_t, uid_t, uid_t);
239 extern int getresuid(uid_t *, uid_t *, uid_t *);
240 extern int setresgid(gid_t, gid_t, gid_t);
241 extern int getresgid(gid_t *, gid_t *, gid_t *);
242 extern int setgroups(int, gid_t *);
243
244 static inline long get_errno(long ret)
245 {
246 if (ret == -1)
247 return -errno;
248 else
249 return ret;
250 }
251
252 static inline int is_error(long ret)
253 {
254 return (unsigned long)ret >= (unsigned long)(-4096);
255 }
256
257 static char *target_brk;
258 static char *target_original_brk;
259
260 void target_set_brk(char *new_brk)
261 {
262 target_brk = new_brk;
263 target_original_brk = new_brk;
264 }
265
266 static long do_brk(char *new_brk)
267 {
268 char *brk_page;
269 long mapped_addr;
270 int new_alloc_size;
271
272 if (!new_brk)
273 return (long)target_brk;
274 if (new_brk < target_original_brk)
275 return -ENOMEM;
276
277 brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
278
279 /* If the new brk is less than this, set it and we're done... */
280 if (new_brk < brk_page) {
281 target_brk = new_brk;
282 return (long)target_brk;
283 }
284
285 /* We need to allocate more memory after the brk... */
286 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
287 mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size,
288 PROT_READ|PROT_WRITE,
289 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
290 if (is_error(mapped_addr)) {
291 return mapped_addr;
292 } else {
293 target_brk = new_brk;
294 return (long)target_brk;
295 }
296 }
297
298 static inline fd_set *target_to_host_fds(fd_set *fds,
299 target_long *target_fds, int n)
300 {
301 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
302 return (fd_set *)target_fds;
303 #else
304 int i, b;
305 if (target_fds) {
306 FD_ZERO(fds);
307 for(i = 0;i < n; i++) {
308 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
309 (i & (TARGET_LONG_BITS - 1))) & 1;
310 if (b)
311 FD_SET(i, fds);
312 }
313 return fds;
314 } else {
315 return NULL;
316 }
317 #endif
318 }
319
320 static inline void host_to_target_fds(target_long *target_fds,
321 fd_set *fds, int n)
322 {
323 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
324 /* nothing to do */
325 #else
326 int i, nw, j, k;
327 target_long v;
328
329 if (target_fds) {
330 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
331 k = 0;
332 for(i = 0;i < nw; i++) {
333 v = 0;
334 for(j = 0; j < TARGET_LONG_BITS; j++) {
335 v |= ((FD_ISSET(k, fds) != 0) << j);
336 k++;
337 }
338 target_fds[i] = tswapl(v);
339 }
340 }
341 #endif
342 }
343
344 #if defined(__alpha__)
345 #define HOST_HZ 1024
346 #else
347 #define HOST_HZ 100
348 #endif
349
350 static inline long host_to_target_clock_t(long ticks)
351 {
352 #if HOST_HZ == TARGET_HZ
353 return ticks;
354 #else
355 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
356 #endif
357 }
358
359 static inline void host_to_target_rusage(struct target_rusage *target_rusage,
360 const struct rusage *rusage)
361 {
362 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
363 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
364 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
365 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
366 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
367 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
368 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
369 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
370 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
371 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
372 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
373 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
374 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
375 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
376 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
377 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
378 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
379 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
380 }
381
382 static inline void target_to_host_timeval(struct timeval *tv,
383 const struct target_timeval *target_tv)
384 {
385 tv->tv_sec = tswapl(target_tv->tv_sec);
386 tv->tv_usec = tswapl(target_tv->tv_usec);
387 }
388
389 static inline void host_to_target_timeval(struct target_timeval *target_tv,
390 const struct timeval *tv)
391 {
392 target_tv->tv_sec = tswapl(tv->tv_sec);
393 target_tv->tv_usec = tswapl(tv->tv_usec);
394 }
395
396
397 static long do_select(long n,
398 target_long *target_rfds, target_long *target_wfds,
399 target_long *target_efds, struct target_timeval *target_tv)
400 {
401 fd_set rfds, wfds, efds;
402 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
403 struct timeval tv, *tv_ptr;
404 long ret;
405
406 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
407 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
408 efds_ptr = target_to_host_fds(&efds, target_efds, n);
409
410 if (target_tv) {
411 target_to_host_timeval(&tv, target_tv);
412 tv_ptr = &tv;
413 } else {
414 tv_ptr = NULL;
415 }
416 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
417 if (!is_error(ret)) {
418 host_to_target_fds(target_rfds, rfds_ptr, n);
419 host_to_target_fds(target_wfds, wfds_ptr, n);
420 host_to_target_fds(target_efds, efds_ptr, n);
421
422 if (target_tv) {
423 host_to_target_timeval(target_tv, &tv);
424 }
425 }
426 return ret;
427 }
428
429 static inline void target_to_host_sockaddr(struct sockaddr *addr,
430 struct target_sockaddr *target_addr,
431 socklen_t len)
432 {
433 memcpy(addr, target_addr, len);
434 addr->sa_family = tswap16(target_addr->sa_family);
435 }
436
437 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
438 struct sockaddr *addr,
439 socklen_t len)
440 {
441 memcpy(target_addr, addr, len);
442 target_addr->sa_family = tswap16(addr->sa_family);
443 }
444
445 static inline void target_to_host_cmsg(struct msghdr *msgh,
446 struct target_msghdr *target_msgh)
447 {
448 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
449 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
450 socklen_t space = 0;
451
452 while (cmsg && target_cmsg) {
453 void *data = CMSG_DATA(cmsg);
454 void *target_data = TARGET_CMSG_DATA(target_cmsg);
455
456 int len = tswapl(target_cmsg->cmsg_len)
457 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
458
459 space += CMSG_SPACE(len);
460 if (space > msgh->msg_controllen) {
461 space -= CMSG_SPACE(len);
462 gemu_log("Host cmsg overflow");
463 break;
464 }
465
466 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
467 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
468 cmsg->cmsg_len = CMSG_LEN(len);
469
470 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
471 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
472 memcpy(data, target_data, len);
473 } else {
474 int *fd = (int *)data;
475 int *target_fd = (int *)target_data;
476 int i, numfds = len / sizeof(int);
477
478 for (i = 0; i < numfds; i++)
479 fd[i] = tswap32(target_fd[i]);
480 }
481
482 cmsg = CMSG_NXTHDR(msgh, cmsg);
483 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
484 }
485
486 msgh->msg_controllen = space;
487 }
488
489 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
490 struct msghdr *msgh)
491 {
492 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
493 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
494 socklen_t space = 0;
495
496 while (cmsg && target_cmsg) {
497 void *data = CMSG_DATA(cmsg);
498 void *target_data = TARGET_CMSG_DATA(target_cmsg);
499
500 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
501
502 space += TARGET_CMSG_SPACE(len);
503 if (space > tswapl(target_msgh->msg_controllen)) {
504 space -= TARGET_CMSG_SPACE(len);
505 gemu_log("Target cmsg overflow");
506 break;
507 }
508
509 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
510 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
511 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
512
513 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
514 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
515 memcpy(target_data, data, len);
516 } else {
517 int *fd = (int *)data;
518 int *target_fd = (int *)target_data;
519 int i, numfds = len / sizeof(int);
520
521 for (i = 0; i < numfds; i++)
522 target_fd[i] = tswap32(fd[i]);
523 }
524
525 cmsg = CMSG_NXTHDR(msgh, cmsg);
526 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
527 }
528
529 msgh->msg_controllen = tswapl(space);
530 }
531
532 static long do_setsockopt(int sockfd, int level, int optname,
533 void *optval, socklen_t optlen)
534 {
535 int val, ret;
536
537 switch(level) {
538 case SOL_TCP:
539 /* TCP options all take an 'int' value. */
540 if (optlen < sizeof(uint32_t))
541 return -EINVAL;
542
543 if (get_user(val, (uint32_t *)optval))
544 return -EFAULT;
545 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
546 break;
547 case SOL_IP:
548 switch(optname) {
549 case IP_HDRINCL:
550 val = 0;
551 if (optlen >= sizeof(uint32_t)) {
552 if (get_user(val, (uint32_t *)optval))
553 return -EFAULT;
554 } else if (optlen >= 1) {
555 if (get_user(val, (uint8_t *)optval))
556 return -EFAULT;
557 }
558 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
559 break;
560 default:
561 goto unimplemented;
562 }
563 break;
564 case SOL_SOCKET:
565 switch (optname) {
566 /* Options with 'int' argument. */
567 case SO_DEBUG:
568 case SO_REUSEADDR:
569 case SO_TYPE:
570 case SO_ERROR:
571 case SO_DONTROUTE:
572 case SO_BROADCAST:
573 case SO_SNDBUF:
574 case SO_RCVBUF:
575 case SO_KEEPALIVE:
576 case SO_OOBINLINE:
577 case SO_NO_CHECK:
578 case SO_PRIORITY:
579 case SO_BSDCOMPAT:
580 case SO_PASSCRED:
581 case SO_TIMESTAMP:
582 case SO_RCVLOWAT:
583 case SO_RCVTIMEO:
584 case SO_SNDTIMEO:
585 if (optlen < sizeof(uint32_t))
586 return -EINVAL;
587 if (get_user(val, (uint32_t *)optval))
588 return -EFAULT;
589 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
590 break;
591 default:
592 goto unimplemented;
593 }
594 break;
595 default:
596 unimplemented:
597 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
598 ret = -ENOSYS;
599 }
600 return ret;
601 }
602
603 static long do_getsockopt(int sockfd, int level, int optname,
604 void *optval, socklen_t *optlen)
605 {
606 int len, lv, val, ret;
607
608 switch(level) {
609 case SOL_SOCKET:
610 switch (optname) {
611 case SO_LINGER:
612 case SO_RCVTIMEO:
613 case SO_SNDTIMEO:
614 case SO_PEERCRED:
615 case SO_PEERNAME:
616 /* These don't just return a single integer */
617 goto unimplemented;
618 default:
619 if (get_user(len, optlen))
620 return -EFAULT;
621 if (len < 0)
622 return -EINVAL;
623 lv = sizeof(int);
624 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
625 if (ret < 0)
626 return ret;
627 val = tswap32(val);
628 if (len > lv)
629 len = lv;
630 if (copy_to_user(optval, &val, len))
631 return -EFAULT;
632 if (put_user(len, optlen))
633 return -EFAULT;
634 break;
635 }
636 break;
637 default:
638 unimplemented:
639 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
640 level, optname);
641 ret = -ENOSYS;
642 break;
643 }
644 return ret;
645 }
646
647 static long do_socketcall(int num, int32_t *vptr)
648 {
649 long ret;
650
651 switch(num) {
652 case SOCKOP_socket:
653 {
654 int domain = tswap32(vptr[0]);
655 int type = tswap32(vptr[1]);
656 int protocol = tswap32(vptr[2]);
657
658 ret = get_errno(socket(domain, type, protocol));
659 }
660 break;
661 case SOCKOP_bind:
662 {
663 int sockfd = tswap32(vptr[0]);
664 void *target_addr = (void *)tswap32(vptr[1]);
665 socklen_t addrlen = tswap32(vptr[2]);
666 void *addr = alloca(addrlen);
667
668 target_to_host_sockaddr(addr, target_addr, addrlen);
669 ret = get_errno(bind(sockfd, addr, addrlen));
670 }
671 break;
672 case SOCKOP_connect:
673 {
674 int sockfd = tswap32(vptr[0]);
675 void *target_addr = (void *)tswap32(vptr[1]);
676 socklen_t addrlen = tswap32(vptr[2]);
677 void *addr = alloca(addrlen);
678
679 target_to_host_sockaddr(addr, target_addr, addrlen);
680 ret = get_errno(connect(sockfd, addr, addrlen));
681 }
682 break;
683 case SOCKOP_listen:
684 {
685 int sockfd = tswap32(vptr[0]);
686 int backlog = tswap32(vptr[1]);
687
688 ret = get_errno(listen(sockfd, backlog));
689 }
690 break;
691 case SOCKOP_accept:
692 {
693 int sockfd = tswap32(vptr[0]);
694 void *target_addr = (void *)tswap32(vptr[1]);
695 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
696 socklen_t addrlen = tswap32(*target_addrlen);
697 void *addr = alloca(addrlen);
698
699 ret = get_errno(accept(sockfd, addr, &addrlen));
700 if (!is_error(ret)) {
701 host_to_target_sockaddr(target_addr, addr, addrlen);
702 *target_addrlen = tswap32(addrlen);
703 }
704 }
705 break;
706 case SOCKOP_getsockname:
707 {
708 int sockfd = tswap32(vptr[0]);
709 void *target_addr = (void *)tswap32(vptr[1]);
710 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
711 socklen_t addrlen = tswap32(*target_addrlen);
712 void *addr = alloca(addrlen);
713
714 ret = get_errno(getsockname(sockfd, addr, &addrlen));
715 if (!is_error(ret)) {
716 host_to_target_sockaddr(target_addr, addr, addrlen);
717 *target_addrlen = tswap32(addrlen);
718 }
719 }
720 break;
721 case SOCKOP_getpeername:
722 {
723 int sockfd = tswap32(vptr[0]);
724 void *target_addr = (void *)tswap32(vptr[1]);
725 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
726 socklen_t addrlen = tswap32(*target_addrlen);
727 void *addr = alloca(addrlen);
728
729 ret = get_errno(getpeername(sockfd, addr, &addrlen));
730 if (!is_error(ret)) {
731 host_to_target_sockaddr(target_addr, addr, addrlen);
732 *target_addrlen = tswap32(addrlen);
733 }
734 }
735 break;
736 case SOCKOP_socketpair:
737 {
738 int domain = tswap32(vptr[0]);
739 int type = tswap32(vptr[1]);
740 int protocol = tswap32(vptr[2]);
741 int32_t *target_tab = (void *)tswap32(vptr[3]);
742 int tab[2];
743
744 ret = get_errno(socketpair(domain, type, protocol, tab));
745 if (!is_error(ret)) {
746 target_tab[0] = tswap32(tab[0]);
747 target_tab[1] = tswap32(tab[1]);
748 }
749 }
750 break;
751 case SOCKOP_send:
752 {
753 int sockfd = tswap32(vptr[0]);
754 void *msg = (void *)tswap32(vptr[1]);
755 size_t len = tswap32(vptr[2]);
756 int flags = tswap32(vptr[3]);
757
758 ret = get_errno(send(sockfd, msg, len, flags));
759 }
760 break;
761 case SOCKOP_recv:
762 {
763 int sockfd = tswap32(vptr[0]);
764 void *msg = (void *)tswap32(vptr[1]);
765 size_t len = tswap32(vptr[2]);
766 int flags = tswap32(vptr[3]);
767
768 ret = get_errno(recv(sockfd, msg, len, flags));
769 }
770 break;
771 case SOCKOP_sendto:
772 {
773 int sockfd = tswap32(vptr[0]);
774 void *msg = (void *)tswap32(vptr[1]);
775 size_t len = tswap32(vptr[2]);
776 int flags = tswap32(vptr[3]);
777 void *target_addr = (void *)tswap32(vptr[4]);
778 socklen_t addrlen = tswap32(vptr[5]);
779 void *addr = alloca(addrlen);
780
781 target_to_host_sockaddr(addr, target_addr, addrlen);
782 ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
783 }
784 break;
785 case SOCKOP_recvfrom:
786 {
787 int sockfd = tswap32(vptr[0]);
788 void *msg = (void *)tswap32(vptr[1]);
789 size_t len = tswap32(vptr[2]);
790 int flags = tswap32(vptr[3]);
791 void *target_addr = (void *)tswap32(vptr[4]);
792 uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
793 socklen_t addrlen = tswap32(*target_addrlen);
794 void *addr = alloca(addrlen);
795
796 ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
797 if (!is_error(ret)) {
798 host_to_target_sockaddr(target_addr, addr, addrlen);
799 *target_addrlen = tswap32(addrlen);
800 }
801 }
802 break;
803 case SOCKOP_shutdown:
804 {
805 int sockfd = tswap32(vptr[0]);
806 int how = tswap32(vptr[1]);
807
808 ret = get_errno(shutdown(sockfd, how));
809 }
810 break;
811 case SOCKOP_sendmsg:
812 case SOCKOP_recvmsg:
813 {
814 int fd;
815 struct target_msghdr *msgp;
816 struct msghdr msg;
817 int flags, count, i;
818 struct iovec *vec;
819 struct target_iovec *target_vec;
820
821 msgp = (void *)tswap32(vptr[1]);
822 msg.msg_name = (void *)tswapl(msgp->msg_name);
823 msg.msg_namelen = tswapl(msgp->msg_namelen);
824 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
825 msg.msg_control = alloca(msg.msg_controllen);
826 msg.msg_flags = tswap32(msgp->msg_flags);
827
828 count = tswapl(msgp->msg_iovlen);
829 vec = alloca(count * sizeof(struct iovec));
830 target_vec = (void *)tswapl(msgp->msg_iov);
831 for(i = 0;i < count; i++) {
832 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
833 vec[i].iov_len = tswapl(target_vec[i].iov_len);
834 }
835 msg.msg_iovlen = count;
836 msg.msg_iov = vec;
837
838 fd = tswap32(vptr[0]);
839 flags = tswap32(vptr[2]);
840 if (num == SOCKOP_sendmsg) {
841 target_to_host_cmsg(&msg, msgp);
842 ret = get_errno(sendmsg(fd, &msg, flags));
843 } else {
844 ret = get_errno(recvmsg(fd, &msg, flags));
845 if (!is_error(ret))
846 host_to_target_cmsg(msgp, &msg);
847 }
848 }
849 break;
850 case SOCKOP_setsockopt:
851 {
852 int sockfd = tswap32(vptr[0]);
853 int level = tswap32(vptr[1]);
854 int optname = tswap32(vptr[2]);
855 void *optval = (void *)tswap32(vptr[3]);
856 socklen_t optlen = tswap32(vptr[4]);
857
858 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
859 }
860 break;
861 case SOCKOP_getsockopt:
862 {
863 int sockfd = tswap32(vptr[0]);
864 int level = tswap32(vptr[1]);
865 int optname = tswap32(vptr[2]);
866 void *optval = (void *)tswap32(vptr[3]);
867 uint32_t *poptlen = (void *)tswap32(vptr[4]);
868
869 ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
870 }
871 break;
872 default:
873 gemu_log("Unsupported socketcall: %d\n", num);
874 ret = -ENOSYS;
875 break;
876 }
877 return ret;
878 }
879
880
881 #define N_SHM_REGIONS 32
882
883 static struct shm_region {
884 uint32_t start;
885 uint32_t size;
886 } shm_regions[N_SHM_REGIONS];
887
888 static long do_ipc(long call, long first, long second, long third,
889 long ptr, long fifth)
890 {
891 int version;
892 long ret = 0;
893 unsigned long raddr;
894 struct shmid_ds shm_info;
895 int i;
896
897 version = call >> 16;
898 call &= 0xffff;
899
900 switch (call) {
901 case IPCOP_shmat:
902 /* SHM_* flags are the same on all linux platforms */
903 ret = get_errno((long) shmat(first, (void *) ptr, second));
904 if (is_error(ret))
905 break;
906 raddr = ret;
907 /* find out the length of the shared memory segment */
908
909 ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
910 if (is_error(ret)) {
911 /* can't get length, bail out */
912 shmdt((void *) raddr);
913 break;
914 }
915 page_set_flags(raddr, raddr + shm_info.shm_segsz,
916 PAGE_VALID | PAGE_READ |
917 ((second & SHM_RDONLY)? 0: PAGE_WRITE));
918 for (i = 0; i < N_SHM_REGIONS; ++i) {
919 if (shm_regions[i].start == 0) {
920 shm_regions[i].start = raddr;
921 shm_regions[i].size = shm_info.shm_segsz;
922 break;
923 }
924 }
925 if (put_user(raddr, (uint32_t *)third))
926 return -EFAULT;
927 ret = 0;
928 break;
929 case IPCOP_shmdt:
930 for (i = 0; i < N_SHM_REGIONS; ++i) {
931 if (shm_regions[i].start == ptr) {
932 shm_regions[i].start = 0;
933 page_set_flags(ptr, shm_regions[i].size, 0);
934 break;
935 }
936 }
937 ret = get_errno(shmdt((void *) ptr));
938 break;
939
940 case IPCOP_shmget:
941 /* IPC_* flag values are the same on all linux platforms */
942 ret = get_errno(shmget(first, second, third));
943 break;
944
945 /* IPC_* and SHM_* command values are the same on all linux platforms */
946 case IPCOP_shmctl:
947 switch(second) {
948 case IPC_RMID:
949 case SHM_LOCK:
950 case SHM_UNLOCK:
951 ret = get_errno(shmctl(first, second, NULL));
952 break;
953 default:
954 goto unimplemented;
955 }
956 break;
957 default:
958 unimplemented:
959 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
960 ret = -ENOSYS;
961 break;
962 }
963 return ret;
964 }
965
966 /* kernel structure types definitions */
967 #define IFNAMSIZ 16
968
969 #define STRUCT(name, list...) STRUCT_ ## name,
970 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
971 enum {
972 #include "syscall_types.h"
973 };
974 #undef STRUCT
975 #undef STRUCT_SPECIAL
976
977 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
978 #define STRUCT_SPECIAL(name)
979 #include "syscall_types.h"
980 #undef STRUCT
981 #undef STRUCT_SPECIAL
982
983 typedef struct IOCTLEntry {
984 unsigned int target_cmd;
985 unsigned int host_cmd;
986 const char *name;
987 int access;
988 const argtype arg_type[5];
989 } IOCTLEntry;
990
991 #define IOC_R 0x0001
992 #define IOC_W 0x0002
993 #define IOC_RW (IOC_R | IOC_W)
994
995 #define MAX_STRUCT_SIZE 4096
996
997 IOCTLEntry ioctl_entries[] = {
998 #define IOCTL(cmd, access, types...) \
999 { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1000 #include "ioctls.h"
1001 { 0, 0, },
1002 };
1003
1004 static long do_ioctl(long fd, long cmd, long arg)
1005 {
1006 const IOCTLEntry *ie;
1007 const argtype *arg_type;
1008 long ret;
1009 uint8_t buf_temp[MAX_STRUCT_SIZE];
1010
1011 ie = ioctl_entries;
1012 for(;;) {
1013 if (ie->target_cmd == 0) {
1014 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1015 return -ENOSYS;
1016 }
1017 if (ie->target_cmd == cmd)
1018 break;
1019 ie++;
1020 }
1021 arg_type = ie->arg_type;
1022 #if defined(DEBUG)
1023 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1024 #endif
1025 switch(arg_type[0]) {
1026 case TYPE_NULL:
1027 /* no argument */
1028 ret = get_errno(ioctl(fd, ie->host_cmd));
1029 break;
1030 case TYPE_PTRVOID:
1031 case TYPE_INT:
1032 /* int argment */
1033 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1034 break;
1035 case TYPE_PTR:
1036 arg_type++;
1037 switch(ie->access) {
1038 case IOC_R:
1039 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1040 if (!is_error(ret)) {
1041 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1042 }
1043 break;
1044 case IOC_W:
1045 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1046 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1047 break;
1048 default:
1049 case IOC_RW:
1050 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1051 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1052 if (!is_error(ret)) {
1053 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1054 }
1055 break;
1056 }
1057 break;
1058 default:
1059 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1060 ret = -ENOSYS;
1061 break;
1062 }
1063 return ret;
1064 }
1065
1066 bitmask_transtbl iflag_tbl[] = {
1067 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1068 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1069 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1070 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1071 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1072 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1073 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1074 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1075 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1076 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1077 { TARGET_IXON, TARGET_IXON, IXON, IXON },
1078 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1079 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1080 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1081 { 0, 0, 0, 0 }
1082 };
1083
1084 bitmask_transtbl oflag_tbl[] = {
1085 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1086 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1087 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1088 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1089 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1090 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1091 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1092 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1093 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1094 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1095 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1096 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1097 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1098 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1099 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1100 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1101 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1102 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1103 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1104 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1105 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1106 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1107 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1108 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1109 { 0, 0, 0, 0 }
1110 };
1111
1112 bitmask_transtbl cflag_tbl[] = {
1113 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1114 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1115 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1116 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1117 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1118 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1119 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1120 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1121 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1122 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1123 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1124 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1125 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1126 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1127 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1128 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1129 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1130 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1131 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1132 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1133 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1134 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1135 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1136 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1137 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1138 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1139 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1140 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1141 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1142 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1143 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1144 { 0, 0, 0, 0 }
1145 };
1146
1147 bitmask_transtbl lflag_tbl[] = {
1148 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1149 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1150 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1151 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1152 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1153 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1154 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1155 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1156 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1157 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1158 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1159 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1160 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1161 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1162 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1163 { 0, 0, 0, 0 }
1164 };
1165
1166 static void target_to_host_termios (void *dst, const void *src)
1167 {
1168 struct host_termios *host = dst;
1169 const struct target_termios *target = src;
1170
1171 host->c_iflag =
1172 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1173 host->c_oflag =
1174 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1175 host->c_cflag =
1176 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1177 host->c_lflag =
1178 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1179 host->c_line = target->c_line;
1180
1181 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1182 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1183 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1184 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1185 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1186 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1187 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1188 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1189 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1190 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1191 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1192 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1193 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1194 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1195 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1196 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1197 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1198 }
1199
1200 static void host_to_target_termios (void *dst, const void *src)
1201 {
1202 struct target_termios *target = dst;
1203 const struct host_termios *host = src;
1204
1205 target->c_iflag =
1206 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1207 target->c_oflag =
1208 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1209 target->c_cflag =
1210 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1211 target->c_lflag =
1212 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1213 target->c_line = host->c_line;
1214
1215 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1216 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1217 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1218 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1219 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1220 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1221 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1222 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1223 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1224 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1225 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1226 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1227 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1228 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1229 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1230 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1231 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1232 }
1233
1234 StructEntry struct_termios_def = {
1235 .convert = { host_to_target_termios, target_to_host_termios },
1236 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1237 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1238 };
1239
1240 static bitmask_transtbl mmap_flags_tbl[] = {
1241 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1242 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1243 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1244 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1245 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1246 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1247 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1248 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1249 { 0, 0, 0, 0 }
1250 };
1251
1252 static bitmask_transtbl fcntl_flags_tbl[] = {
1253 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
1254 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
1255 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
1256 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
1257 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
1258 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
1259 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
1260 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
1261 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
1262 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
1263 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1264 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
1265 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1266 #if defined(O_DIRECT)
1267 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
1268 #endif
1269 { 0, 0, 0, 0 }
1270 };
1271
1272 #if defined(TARGET_I386)
1273
1274 /* NOTE: there is really one LDT for all the threads */
1275 uint8_t *ldt_table;
1276
1277 static int read_ldt(void *ptr, unsigned long bytecount)
1278 {
1279 int size;
1280
1281 if (!ldt_table)
1282 return 0;
1283 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1284 if (size > bytecount)
1285 size = bytecount;
1286 memcpy(ptr, ldt_table, size);
1287 return size;
1288 }
1289
1290 /* XXX: add locking support */
1291 static int write_ldt(CPUX86State *env,
1292 void *ptr, unsigned long bytecount, int oldmode)
1293 {
1294 struct target_modify_ldt_ldt_s ldt_info;
1295 int seg_32bit, contents, read_exec_only, limit_in_pages;
1296 int seg_not_present, useable;
1297 uint32_t *lp, entry_1, entry_2;
1298
1299 if (bytecount != sizeof(ldt_info))
1300 return -EINVAL;
1301 memcpy(&ldt_info, ptr, sizeof(ldt_info));
1302 tswap32s(&ldt_info.entry_number);
1303 tswapls((long *)&ldt_info.base_addr);
1304 tswap32s(&ldt_info.limit);
1305 tswap32s(&ldt_info.flags);
1306
1307 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1308 return -EINVAL;
1309 seg_32bit = ldt_info.flags & 1;
1310 contents = (ldt_info.flags >> 1) & 3;
1311 read_exec_only = (ldt_info.flags >> 3) & 1;
1312 limit_in_pages = (ldt_info.flags >> 4) & 1;
1313 seg_not_present = (ldt_info.flags >> 5) & 1;
1314 useable = (ldt_info.flags >> 6) & 1;
1315
1316 if (contents == 3) {
1317 if (oldmode)
1318 return -EINVAL;
1319 if (seg_not_present == 0)
1320 return -EINVAL;
1321 }
1322 /* allocate the LDT */
1323 if (!ldt_table) {
1324 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1325 if (!ldt_table)
1326 return -ENOMEM;
1327 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1328 env->ldt.base = ldt_table;
1329 env->ldt.limit = 0xffff;
1330 }
1331
1332 /* NOTE: same code as Linux kernel */
1333 /* Allow LDTs to be cleared by the user. */
1334 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1335 if (oldmode ||
1336 (contents == 0 &&
1337 read_exec_only == 1 &&
1338 seg_32bit == 0 &&
1339 limit_in_pages == 0 &&
1340 seg_not_present == 1 &&
1341 useable == 0 )) {
1342 entry_1 = 0;
1343 entry_2 = 0;
1344 goto install;
1345 }
1346 }
1347
1348 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1349 (ldt_info.limit & 0x0ffff);
1350 entry_2 = (ldt_info.base_addr & 0xff000000) |
1351 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1352 (ldt_info.limit & 0xf0000) |
1353 ((read_exec_only ^ 1) << 9) |
1354 (contents << 10) |
1355 ((seg_not_present ^ 1) << 15) |
1356 (seg_32bit << 22) |
1357 (limit_in_pages << 23) |
1358 0x7000;
1359 if (!oldmode)
1360 entry_2 |= (useable << 20);
1361
1362 /* Install the new entry ... */
1363 install:
1364 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1365 lp[0] = tswap32(entry_1);
1366 lp[1] = tswap32(entry_2);
1367 return 0;
1368 }
1369
1370 /* specific and weird i386 syscalls */
1371 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1372 {
1373 int ret = -ENOSYS;
1374
1375 switch (func) {
1376 case 0:
1377 ret = read_ldt(ptr, bytecount);
1378 break;
1379 case 1:
1380 ret = write_ldt(env, ptr, bytecount, 1);
1381 break;
1382 case 0x11:
1383 ret = write_ldt(env, ptr, bytecount, 0);
1384 break;
1385 }
1386 return ret;
1387 }
1388
1389 #endif /* defined(TARGET_I386) */
1390
1391 /* this stack is the equivalent of the kernel stack associated with a
1392 thread/process */
1393 #define NEW_STACK_SIZE 8192
1394
1395 static int clone_func(void *arg)
1396 {
1397 CPUState *env = arg;
1398 cpu_loop(env);
1399 /* never exits */
1400 return 0;
1401 }
1402
1403 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1404 {
1405 int ret;
1406 TaskState *ts;
1407 uint8_t *new_stack;
1408 CPUState *new_env;
1409
1410 if (flags & CLONE_VM) {
1411 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1412 memset(ts, 0, sizeof(TaskState));
1413 new_stack = ts->stack;
1414 ts->used = 1;
1415 /* add in task state list */
1416 ts->next = first_task_state;
1417 first_task_state = ts;
1418 /* we create a new CPU instance. */
1419 new_env = cpu_init();
1420 memcpy(new_env, env, sizeof(CPUState));
1421 #if defined(TARGET_I386)
1422 if (!newsp)
1423 newsp = env->regs[R_ESP];
1424 new_env->regs[R_ESP] = newsp;
1425 new_env->regs[R_EAX] = 0;
1426 #elif defined(TARGET_ARM)
1427 if (!newsp)
1428 newsp = env->regs[13];
1429 new_env->regs[13] = newsp;
1430 new_env->regs[0] = 0;
1431 #elif defined(TARGET_SPARC)
1432 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1433 #elif defined(TARGET_PPC)
1434 if (!newsp)
1435 newsp = env->gpr[1];
1436 new_env->gpr[1] = newsp;
1437 {
1438 int i;
1439 for (i = 7; i < 32; i++)
1440 new_env->gpr[i] = 0;
1441 }
1442 #else
1443 #error unsupported target CPU
1444 #endif
1445 new_env->opaque = ts;
1446 #ifdef __ia64__
1447 ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1448 #else
1449 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1450 #endif
1451 } else {
1452 /* if no CLONE_VM, we consider it is a fork */
1453 if ((flags & ~CSIGNAL) != 0)
1454 return -EINVAL;
1455 ret = fork();
1456 }
1457 return ret;
1458 }
1459
1460 static long do_fcntl(int fd, int cmd, unsigned long arg)
1461 {
1462 struct flock fl;
1463 struct target_flock *target_fl = (void *)arg;
1464 long ret;
1465
1466 switch(cmd) {
1467 case TARGET_F_GETLK:
1468 ret = fcntl(fd, cmd, &fl);
1469 if (ret == 0) {
1470 target_fl->l_type = tswap16(fl.l_type);
1471 target_fl->l_whence = tswap16(fl.l_whence);
1472 target_fl->l_start = tswapl(fl.l_start);
1473 target_fl->l_len = tswapl(fl.l_len);
1474 target_fl->l_pid = tswapl(fl.l_pid);
1475 }
1476 break;
1477
1478 case TARGET_F_SETLK:
1479 case TARGET_F_SETLKW:
1480 fl.l_type = tswap16(target_fl->l_type);
1481 fl.l_whence = tswap16(target_fl->l_whence);
1482 fl.l_start = tswapl(target_fl->l_start);
1483 fl.l_len = tswapl(target_fl->l_len);
1484 fl.l_pid = tswapl(target_fl->l_pid);
1485 ret = fcntl(fd, cmd, &fl);
1486 break;
1487
1488 case TARGET_F_GETLK64:
1489 case TARGET_F_SETLK64:
1490 case TARGET_F_SETLKW64:
1491 ret = -1;
1492 errno = EINVAL;
1493 break;
1494
1495 case F_GETFL:
1496 ret = fcntl(fd, cmd, arg);
1497 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1498 break;
1499
1500 case F_SETFL:
1501 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1502 break;
1503
1504 default:
1505 ret = fcntl(fd, cmd, arg);
1506 break;
1507 }
1508 return ret;
1509 }
1510
1511 #ifdef USE_UID16
1512
1513 static inline int high2lowuid(int uid)
1514 {
1515 if (uid > 65535)
1516 return 65534;
1517 else
1518 return uid;
1519 }
1520
1521 static inline int high2lowgid(int gid)
1522 {
1523 if (gid > 65535)
1524 return 65534;
1525 else
1526 return gid;
1527 }
1528
1529 static inline int low2highuid(int uid)
1530 {
1531 if ((int16_t)uid == -1)
1532 return -1;
1533 else
1534 return uid;
1535 }
1536
1537 static inline int low2highgid(int gid)
1538 {
1539 if ((int16_t)gid == -1)
1540 return -1;
1541 else
1542 return gid;
1543 }
1544
1545 #endif /* USE_UID16 */
1546
1547 void syscall_init(void)
1548 {
1549 IOCTLEntry *ie;
1550 const argtype *arg_type;
1551 int size;
1552
1553 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1554 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1555 #include "syscall_types.h"
1556 #undef STRUCT
1557 #undef STRUCT_SPECIAL
1558
1559 /* we patch the ioctl size if necessary. We rely on the fact that
1560 no ioctl has all the bits at '1' in the size field */
1561 ie = ioctl_entries;
1562 while (ie->target_cmd != 0) {
1563 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1564 TARGET_IOC_SIZEMASK) {
1565 arg_type = ie->arg_type;
1566 if (arg_type[0] != TYPE_PTR) {
1567 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1568 ie->target_cmd);
1569 exit(1);
1570 }
1571 arg_type++;
1572 size = thunk_type_size(arg_type, 0);
1573 ie->target_cmd = (ie->target_cmd &
1574 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1575 (size << TARGET_IOC_SIZESHIFT);
1576 }
1577 /* automatic consistency check if same arch */
1578 #if defined(__i386__) && defined(TARGET_I386)
1579 if (ie->target_cmd != ie->host_cmd) {
1580 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1581 ie->target_cmd, ie->host_cmd);
1582 }
1583 #endif
1584 ie++;
1585 }
1586 }
1587
1588 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1589 long arg4, long arg5, long arg6)
1590 {
1591 long ret;
1592 struct stat st;
1593 struct kernel_statfs *stfs;
1594
1595 #ifdef DEBUG
1596 gemu_log("syscall %d", num);
1597 #endif
1598 switch(num) {
1599 case TARGET_NR_exit:
1600 #ifdef HAVE_GPROF
1601 _mcleanup();
1602 #endif
1603 /* XXX: should free thread stack and CPU env */
1604 _exit(arg1);
1605 ret = 0; /* avoid warning */
1606 break;
1607 case TARGET_NR_read:
1608 page_unprotect_range((void *)arg2, arg3);
1609 ret = get_errno(read(arg1, (void *)arg2, arg3));
1610 break;
1611 case TARGET_NR_write:
1612 ret = get_errno(write(arg1, (void *)arg2, arg3));
1613 break;
1614 case TARGET_NR_open:
1615 ret = get_errno(open(path((const char *)arg1),
1616 target_to_host_bitmask(arg2, fcntl_flags_tbl),
1617 arg3));
1618 break;
1619 case TARGET_NR_close:
1620 ret = get_errno(close(arg1));
1621 break;
1622 case TARGET_NR_brk:
1623 ret = do_brk((char *)arg1);
1624 break;
1625 case TARGET_NR_fork:
1626 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1627 break;
1628 case TARGET_NR_waitpid:
1629 {
1630 int *status = (int *)arg2;
1631 ret = get_errno(waitpid(arg1, status, arg3));
1632 if (!is_error(ret) && status)
1633 tswapls((long *)&status);
1634 }
1635 break;
1636 case TARGET_NR_creat:
1637 ret = get_errno(creat((const char *)arg1, arg2));
1638 break;
1639 case TARGET_NR_link:
1640 ret = get_errno(link((const char *)arg1, (const char *)arg2));
1641 break;
1642 case TARGET_NR_unlink:
1643 ret = get_errno(unlink((const char *)arg1));
1644 break;
1645 case TARGET_NR_execve:
1646 {
1647 char **argp, **envp;
1648 int argc, envc;
1649 uint32_t *p;
1650 char **q;
1651
1652 argc = 0;
1653 for (p = (void *)arg2; *p; p++)
1654 argc++;
1655 envc = 0;
1656 for (p = (void *)arg3; *p; p++)
1657 envc++;
1658
1659 argp = alloca((argc + 1) * sizeof(void *));
1660 envp = alloca((envc + 1) * sizeof(void *));
1661
1662 for (p = (void *)arg2, q = argp; *p; p++, q++)
1663 *q = (void *)tswap32(*p);
1664 *q = NULL;
1665
1666 for (p = (void *)arg3, q = envp; *p; p++, q++)
1667 *q = (void *)tswap32(*p);
1668 *q = NULL;
1669
1670 ret = get_errno(execve((const char *)arg1, argp, envp));
1671 }
1672 break;
1673 case TARGET_NR_chdir:
1674 ret = get_errno(chdir((const char *)arg1));
1675 break;
1676 case TARGET_NR_time:
1677 {
1678 int *time_ptr = (int *)arg1;
1679 ret = get_errno(time((time_t *)time_ptr));
1680 if (!is_error(ret) && time_ptr)
1681 tswap32s(time_ptr);
1682 }
1683 break;
1684 case TARGET_NR_mknod:
1685 ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1686 break;
1687 case TARGET_NR_chmod:
1688 ret = get_errno(chmod((const char *)arg1, arg2));
1689 break;
1690 #ifdef TARGET_NR_break
1691 case TARGET_NR_break:
1692 goto unimplemented;
1693 #endif
1694 #ifdef TARGET_NR_oldstat
1695 case TARGET_NR_oldstat:
1696 goto unimplemented;
1697 #endif
1698 case TARGET_NR_lseek:
1699 ret = get_errno(lseek(arg1, arg2, arg3));
1700 break;
1701 case TARGET_NR_getpid:
1702 ret = get_errno(getpid());
1703 break;
1704 case TARGET_NR_mount:
1705 /* need to look at the data field */
1706 goto unimplemented;
1707 case TARGET_NR_umount:
1708 ret = get_errno(umount((const char *)arg1));
1709 break;
1710 case TARGET_NR_stime:
1711 {
1712 int *time_ptr = (int *)arg1;
1713 if (time_ptr)
1714 tswap32s(time_ptr);
1715 ret = get_errno(stime((time_t *)time_ptr));
1716 }
1717 break;
1718 case TARGET_NR_ptrace:
1719 goto unimplemented;
1720 case TARGET_NR_alarm:
1721 ret = alarm(arg1);
1722 break;
1723 #ifdef TARGET_NR_oldfstat
1724 case TARGET_NR_oldfstat:
1725 goto unimplemented;
1726 #endif
1727 case TARGET_NR_pause:
1728 ret = get_errno(pause());
1729 break;
1730 case TARGET_NR_utime:
1731 {
1732 struct utimbuf tbuf, *tbuf1;
1733 struct target_utimbuf *target_tbuf = (void *)arg2;
1734 if (target_tbuf) {
1735 get_user(tbuf.actime, &target_tbuf->actime);
1736 get_user(tbuf.modtime, &target_tbuf->modtime);
1737 tbuf1 = &tbuf;
1738 } else {
1739 tbuf1 = NULL;
1740 }
1741 ret = get_errno(utime((const char *)arg1, tbuf1));
1742 }
1743 break;
1744 #ifdef TARGET_NR_stty
1745 case TARGET_NR_stty:
1746 goto unimplemented;
1747 #endif
1748 #ifdef TARGET_NR_gtty
1749 case TARGET_NR_gtty:
1750 goto unimplemented;
1751 #endif
1752 case TARGET_NR_access:
1753 ret = get_errno(access((const char *)arg1, arg2));
1754 break;
1755 case TARGET_NR_nice:
1756 ret = get_errno(nice(arg1));
1757 break;
1758 #ifdef TARGET_NR_ftime
1759 case TARGET_NR_ftime:
1760 goto unimplemented;
1761 #endif
1762 case TARGET_NR_sync:
1763 sync();
1764 ret = 0;
1765 break;
1766 case TARGET_NR_kill:
1767 ret = get_errno(kill(arg1, arg2));
1768 break;
1769 case TARGET_NR_rename:
1770 ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1771 break;
1772 case TARGET_NR_mkdir:
1773 ret = get_errno(mkdir((const char *)arg1, arg2));
1774 break;
1775 case TARGET_NR_rmdir:
1776 ret = get_errno(rmdir((const char *)arg1));
1777 break;
1778 case TARGET_NR_dup:
1779 ret = get_errno(dup(arg1));
1780 break;
1781 case TARGET_NR_pipe:
1782 {
1783 int *pipe_ptr = (int *)arg1;
1784 ret = get_errno(pipe(pipe_ptr));
1785 if (!is_error(ret)) {
1786 tswap32s(&pipe_ptr[0]);
1787 tswap32s(&pipe_ptr[1]);
1788 }
1789 }
1790 break;
1791 case TARGET_NR_times:
1792 {
1793 struct target_tms *tmsp = (void *)arg1;
1794 struct tms tms;
1795 ret = get_errno(times(&tms));
1796 if (tmsp) {
1797 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1798 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1799 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1800 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1801 }
1802 if (!is_error(ret))
1803 ret = host_to_target_clock_t(ret);
1804 }
1805 break;
1806 #ifdef TARGET_NR_prof
1807 case TARGET_NR_prof:
1808 goto unimplemented;
1809 #endif
1810 case TARGET_NR_signal:
1811 goto unimplemented;
1812
1813 case TARGET_NR_acct:
1814 goto unimplemented;
1815 case TARGET_NR_umount2:
1816 ret = get_errno(umount2((const char *)arg1, arg2));
1817 break;
1818 #ifdef TARGET_NR_lock
1819 case TARGET_NR_lock:
1820 goto unimplemented;
1821 #endif
1822 case TARGET_NR_ioctl:
1823 ret = do_ioctl(arg1, arg2, arg3);
1824 break;
1825 case TARGET_NR_fcntl:
1826 ret = get_errno(do_fcntl(arg1, arg2, arg3));
1827 break;
1828 #ifdef TARGET_NR_mpx
1829 case TARGET_NR_mpx:
1830 goto unimplemented;
1831 #endif
1832 case TARGET_NR_setpgid:
1833 ret = get_errno(setpgid(arg1, arg2));
1834 break;
1835 #ifdef TARGET_NR_ulimit
1836 case TARGET_NR_ulimit:
1837 goto unimplemented;
1838 #endif
1839 #ifdef TARGET_NR_oldolduname
1840 case TARGET_NR_oldolduname:
1841 goto unimplemented;
1842 #endif
1843 case TARGET_NR_umask:
1844 ret = get_errno(umask(arg1));
1845 break;
1846 case TARGET_NR_chroot:
1847 ret = get_errno(chroot((const char *)arg1));
1848 break;
1849 case TARGET_NR_ustat:
1850 goto unimplemented;
1851 case TARGET_NR_dup2:
1852 ret = get_errno(dup2(arg1, arg2));
1853 break;
1854 case TARGET_NR_getppid:
1855 ret = get_errno(getppid());
1856 break;
1857 case TARGET_NR_getpgrp:
1858 ret = get_errno(getpgrp());
1859 break;
1860 case TARGET_NR_setsid:
1861 ret = get_errno(setsid());
1862 break;
1863 case TARGET_NR_sigaction:
1864 {
1865 struct target_old_sigaction *old_act = (void *)arg2;
1866 struct target_old_sigaction *old_oact = (void *)arg3;
1867 struct target_sigaction act, oact, *pact;
1868 if (old_act) {
1869 act._sa_handler = old_act->_sa_handler;
1870 target_siginitset(&act.sa_mask, old_act->sa_mask);
1871 act.sa_flags = old_act->sa_flags;
1872 act.sa_restorer = old_act->sa_restorer;
1873 pact = &act;
1874 } else {
1875 pact = NULL;
1876 }
1877 ret = get_errno(do_sigaction(arg1, pact, &oact));
1878 if (!is_error(ret) && old_oact) {
1879 old_oact->_sa_handler = oact._sa_handler;
1880 old_oact->sa_mask = oact.sa_mask.sig[0];
1881 old_oact->sa_flags = oact.sa_flags;
1882 old_oact->sa_restorer = oact.sa_restorer;
1883 }
1884 }
1885 break;
1886 case TARGET_NR_rt_sigaction:
1887 ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1888 break;
1889 case TARGET_NR_sgetmask:
1890 {
1891 sigset_t cur_set;
1892 target_ulong target_set;
1893 sigprocmask(0, NULL, &cur_set);
1894 host_to_target_old_sigset(&target_set, &cur_set);
1895 ret = target_set;
1896 }
1897 break;
1898 case TARGET_NR_ssetmask:
1899 {
1900 sigset_t set, oset, cur_set;
1901 target_ulong target_set = arg1;
1902 sigprocmask(0, NULL, &cur_set);
1903 target_to_host_old_sigset(&set, &target_set);
1904 sigorset(&set, &set, &cur_set);
1905 sigprocmask(SIG_SETMASK, &set, &oset);
1906 host_to_target_old_sigset(&target_set, &oset);
1907 ret = target_set;
1908 }
1909 break;
1910 case TARGET_NR_sigprocmask:
1911 {
1912 int how = arg1;
1913 sigset_t set, oldset, *set_ptr;
1914 target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1915
1916 if (pset) {
1917 switch(how) {
1918 case TARGET_SIG_BLOCK:
1919 how = SIG_BLOCK;
1920 break;
1921 case TARGET_SIG_UNBLOCK:
1922 how = SIG_UNBLOCK;
1923 break;
1924 case TARGET_SIG_SETMASK:
1925 how = SIG_SETMASK;
1926 break;
1927 default:
1928 ret = -EINVAL;
1929 goto fail;
1930 }
1931 target_to_host_old_sigset(&set, pset);
1932 set_ptr = &set;
1933 } else {
1934 how = 0;
1935 set_ptr = NULL;
1936 }
1937 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1938 if (!is_error(ret) && poldset) {
1939 host_to_target_old_sigset(poldset, &oldset);
1940 }
1941 }
1942 break;
1943 case TARGET_NR_rt_sigprocmask:
1944 {
1945 int how = arg1;
1946 sigset_t set, oldset, *set_ptr;
1947 target_sigset_t *pset = (void *)arg2;
1948 target_sigset_t *poldset = (void *)arg3;
1949
1950 if (pset) {
1951 switch(how) {
1952 case TARGET_SIG_BLOCK:
1953 how = SIG_BLOCK;
1954 break;
1955 case TARGET_SIG_UNBLOCK:
1956 how = SIG_UNBLOCK;
1957 break;
1958 case TARGET_SIG_SETMASK:
1959 how = SIG_SETMASK;
1960 break;
1961 default:
1962 ret = -EINVAL;
1963 goto fail;
1964 }
1965 target_to_host_sigset(&set, pset);
1966 set_ptr = &set;
1967 } else {
1968 how = 0;
1969 set_ptr = NULL;
1970 }
1971 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1972 if (!is_error(ret) && poldset) {
1973 host_to_target_sigset(poldset, &oldset);
1974 }
1975 }
1976 break;
1977 case TARGET_NR_sigpending:
1978 {
1979 sigset_t set;
1980 ret = get_errno(sigpending(&set));
1981 if (!is_error(ret)) {
1982 host_to_target_old_sigset((target_ulong *)arg1, &set);
1983 }
1984 }
1985 break;
1986 case TARGET_NR_rt_sigpending:
1987 {
1988 sigset_t set;
1989 ret = get_errno(sigpending(&set));
1990 if (!is_error(ret)) {
1991 host_to_target_sigset((target_sigset_t *)arg1, &set);
1992 }
1993 }
1994 break;
1995 case TARGET_NR_sigsuspend:
1996 {
1997 sigset_t set;
1998 target_to_host_old_sigset(&set, (target_ulong *)arg1);
1999 ret = get_errno(sigsuspend(&set));
2000 }
2001 break;
2002 case TARGET_NR_rt_sigsuspend:
2003 {
2004 sigset_t set;
2005 target_to_host_sigset(&set, (target_sigset_t *)arg1);
2006 ret = get_errno(sigsuspend(&set));
2007 }
2008 break;
2009 case TARGET_NR_rt_sigtimedwait:
2010 {
2011 target_sigset_t *target_set = (void *)arg1;
2012 target_siginfo_t *target_uinfo = (void *)arg2;
2013 struct target_timespec *target_uts = (void *)arg3;
2014 sigset_t set;
2015 struct timespec uts, *puts;
2016 siginfo_t uinfo;
2017
2018 target_to_host_sigset(&set, target_set);
2019 if (target_uts) {
2020 puts = &uts;
2021 puts->tv_sec = tswapl(target_uts->tv_sec);
2022 puts->tv_nsec = tswapl(target_uts->tv_nsec);
2023 } else {
2024 puts = NULL;
2025 }
2026 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2027 if (!is_error(ret) && target_uinfo) {
2028 host_to_target_siginfo(target_uinfo, &uinfo);
2029 }
2030 }
2031 break;
2032 case TARGET_NR_rt_sigqueueinfo:
2033 {
2034 siginfo_t uinfo;
2035 target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
2036 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2037 }
2038 break;
2039 case TARGET_NR_sigreturn:
2040 /* NOTE: ret is eax, so not transcoding must be done */
2041 ret = do_sigreturn(cpu_env);
2042 break;
2043 case TARGET_NR_rt_sigreturn:
2044 /* NOTE: ret is eax, so not transcoding must be done */
2045 ret = do_rt_sigreturn(cpu_env);
2046 break;
2047 case TARGET_NR_sethostname:
2048 ret = get_errno(sethostname((const char *)arg1, arg2));
2049 break;
2050 case TARGET_NR_setrlimit:
2051 {
2052 /* XXX: convert resource ? */
2053 int resource = arg1;
2054 struct target_rlimit *target_rlim = (void *)arg2;
2055 struct rlimit rlim;
2056 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2057 rlim.rlim_max = tswapl(target_rlim->rlim_max);
2058 ret = get_errno(setrlimit(resource, &rlim));
2059 }
2060 break;
2061 case TARGET_NR_getrlimit:
2062 {
2063 /* XXX: convert resource ? */
2064 int resource = arg1;
2065 struct target_rlimit *target_rlim = (void *)arg2;
2066 struct rlimit rlim;
2067
2068 ret = get_errno(getrlimit(resource, &rlim));
2069 if (!is_error(ret)) {
2070 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2071 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2072 }
2073 }
2074 break;
2075 case TARGET_NR_getrusage:
2076 {
2077 struct rusage rusage;
2078 struct target_rusage *target_rusage = (void *)arg2;
2079 ret = get_errno(getrusage(arg1, &rusage));
2080 if (!is_error(ret)) {
2081 host_to_target_rusage(target_rusage, &rusage);
2082 }
2083 }
2084 break;
2085 case TARGET_NR_gettimeofday:
2086 {
2087 struct target_timeval *target_tv = (void *)arg1;
2088 struct timeval tv;
2089 ret = get_errno(gettimeofday(&tv, NULL));
2090 if (!is_error(ret)) {
2091 host_to_target_timeval(target_tv, &tv);
2092 }
2093 }
2094 break;
2095 case TARGET_NR_settimeofday:
2096 {
2097 struct target_timeval *target_tv = (void *)arg1;
2098 struct timeval tv;
2099 target_to_host_timeval(&tv, target_tv);
2100 ret = get_errno(settimeofday(&tv, NULL));
2101 }
2102 break;
2103 case TARGET_NR_select:
2104 {
2105 struct target_sel_arg_struct *sel = (void *)arg1;
2106 sel->n = tswapl(sel->n);
2107 sel->inp = tswapl(sel->inp);
2108 sel->outp = tswapl(sel->outp);
2109 sel->exp = tswapl(sel->exp);
2110 sel->tvp = tswapl(sel->tvp);
2111 ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
2112 (void *)sel->exp, (void *)sel->tvp);
2113 }
2114 break;
2115 case TARGET_NR_symlink:
2116 ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
2117 break;
2118 #ifdef TARGET_NR_oldlstat
2119 case TARGET_NR_oldlstat:
2120 goto unimplemented;
2121 #endif
2122 case TARGET_NR_readlink:
2123 ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
2124 break;
2125 case TARGET_NR_uselib:
2126 goto unimplemented;
2127 case TARGET_NR_swapon:
2128 ret = get_errno(swapon((const char *)arg1, arg2));
2129 break;
2130 case TARGET_NR_reboot:
2131 goto unimplemented;
2132 case TARGET_NR_readdir:
2133 goto unimplemented;
2134 case TARGET_NR_mmap:
2135 #if defined(TARGET_I386) || defined(TARGET_ARM)
2136 {
2137 uint32_t v1, v2, v3, v4, v5, v6, *vptr;
2138 vptr = (uint32_t *)arg1;
2139 v1 = tswap32(vptr[0]);
2140 v2 = tswap32(vptr[1]);
2141 v3 = tswap32(vptr[2]);
2142 v4 = tswap32(vptr[3]);
2143 v5 = tswap32(vptr[4]);
2144 v6 = tswap32(vptr[5]);
2145 ret = get_errno(target_mmap(v1, v2, v3,
2146 target_to_host_bitmask(v4, mmap_flags_tbl),
2147 v5, v6));
2148 }
2149 #else
2150 ret = get_errno(target_mmap(arg1, arg2, arg3,
2151 target_to_host_bitmask(arg4, mmap_flags_tbl),
2152 arg5,
2153 arg6));
2154 #endif
2155 break;
2156 case TARGET_NR_mmap2:
2157 #if defined(TARGET_SPARC)
2158 #define MMAP_SHIFT 12
2159 #else
2160 #define MMAP_SHIFT TARGET_PAGE_BITS
2161 #endif
2162 ret = get_errno(target_mmap(arg1, arg2, arg3,
2163 target_to_host_bitmask(arg4, mmap_flags_tbl),
2164 arg5,
2165 arg6 << MMAP_SHIFT));
2166 break;
2167 case TARGET_NR_munmap:
2168 ret = get_errno(target_munmap(arg1, arg2));
2169 break;
2170 case TARGET_NR_mprotect:
2171 ret = get_errno(target_mprotect(arg1, arg2, arg3));
2172 break;
2173 case TARGET_NR_mremap:
2174 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2175 break;
2176 case TARGET_NR_msync:
2177 ret = get_errno(msync((void *)arg1, arg2, arg3));
2178 break;
2179 case TARGET_NR_mlock:
2180 ret = get_errno(mlock((void *)arg1, arg2));
2181 break;
2182 case TARGET_NR_munlock:
2183 ret = get_errno(munlock((void *)arg1, arg2));
2184 break;
2185 case TARGET_NR_mlockall:
2186 ret = get_errno(mlockall(arg1));
2187 break;
2188 case TARGET_NR_munlockall:
2189 ret = get_errno(munlockall());
2190 break;
2191 case TARGET_NR_truncate:
2192 ret = get_errno(truncate((const char *)arg1, arg2));
2193 break;
2194 case TARGET_NR_ftruncate:
2195 ret = get_errno(ftruncate(arg1, arg2));
2196 break;
2197 case TARGET_NR_fchmod:
2198 ret = get_errno(fchmod(arg1, arg2));
2199 break;
2200 case TARGET_NR_getpriority:
2201 ret = get_errno(getpriority(arg1, arg2));
2202 break;
2203 case TARGET_NR_setpriority:
2204 ret = get_errno(setpriority(arg1, arg2, arg3));
2205 break;
2206 #ifdef TARGET_NR_profil
2207 case TARGET_NR_profil:
2208 goto unimplemented;
2209 #endif
2210 case TARGET_NR_statfs:
2211 stfs = (void *)arg2;
2212 ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2213 convert_statfs:
2214 if (!is_error(ret)) {
2215 tswap32s(&stfs->f_type);
2216 tswap32s(&stfs->f_bsize);
2217 tswap32s(&stfs->f_blocks);
2218 tswap32s(&stfs->f_bfree);
2219 tswap32s(&stfs->f_bavail);
2220 tswap32s(&stfs->f_files);
2221 tswap32s(&stfs->f_ffree);
2222 tswap32s(&stfs->f_fsid.val[0]);
2223 tswap32s(&stfs->f_fsid.val[1]);
2224 tswap32s(&stfs->f_namelen);
2225 }
2226 break;
2227 case TARGET_NR_fstatfs:
2228 stfs = (void *)arg2;
2229 ret = get_errno(sys_fstatfs(arg1, stfs));
2230 goto convert_statfs;
2231 #ifdef TARGET_NR_ioperm
2232 case TARGET_NR_ioperm:
2233 goto unimplemented;
2234 #endif
2235 case TARGET_NR_socketcall:
2236 ret = do_socketcall(arg1, (int32_t *)arg2);
2237 break;
2238 case TARGET_NR_syslog:
2239 goto unimplemented;
2240 case TARGET_NR_setitimer:
2241 {
2242 struct target_itimerval *target_value = (void *)arg2;
2243 struct target_itimerval *target_ovalue = (void *)arg3;
2244 struct itimerval value, ovalue, *pvalue;
2245
2246 if (target_value) {
2247 pvalue = &value;
2248 target_to_host_timeval(&pvalue->it_interval,
2249 &target_value->it_interval);
2250 target_to_host_timeval(&pvalue->it_value,
2251 &target_value->it_value);
2252 } else {
2253 pvalue = NULL;
2254 }
2255 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2256 if (!is_error(ret) && target_ovalue) {
2257 host_to_target_timeval(&target_ovalue->it_interval,
2258 &ovalue.it_interval);
2259 host_to_target_timeval(&target_ovalue->it_value,
2260 &ovalue.it_value);
2261 }
2262 }
2263 break;
2264 case TARGET_NR_getitimer:
2265 {
2266 struct target_itimerval *target_value = (void *)arg2;
2267 struct itimerval value;
2268
2269 ret = get_errno(getitimer(arg1, &value));
2270 if (!is_error(ret) && target_value) {
2271 host_to_target_timeval(&target_value->it_interval,
2272 &value.it_interval);
2273 host_to_target_timeval(&target_value->it_value,
2274 &value.it_value);
2275 }
2276 }
2277 break;
2278 case TARGET_NR_stat:
2279 ret = get_errno(stat(path((const char *)arg1), &st));
2280 goto do_stat;
2281 case TARGET_NR_lstat:
2282 ret = get_errno(lstat(path((const char *)arg1), &st));
2283 goto do_stat;
2284 case TARGET_NR_fstat:
2285 {
2286 ret = get_errno(fstat(arg1, &st));
2287 do_stat:
2288 if (!is_error(ret)) {
2289 struct target_stat *target_st = (void *)arg2;
2290 target_st->st_dev = tswap16(st.st_dev);
2291 target_st->st_ino = tswapl(st.st_ino);
2292 #if defined(TARGET_PPC)
2293 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2294 target_st->st_uid = tswap32(st.st_uid);
2295 target_st->st_gid = tswap32(st.st_gid);
2296 #else
2297 target_st->st_mode = tswap16(st.st_mode);
2298 target_st->st_uid = tswap16(st.st_uid);
2299 target_st->st_gid = tswap16(st.st_gid);
2300 #endif
2301 target_st->st_nlink = tswap16(st.st_nlink);
2302 target_st->st_rdev = tswap16(st.st_rdev);
2303 target_st->st_size = tswapl(st.st_size);
2304 target_st->st_blksize = tswapl(st.st_blksize);
2305 target_st->st_blocks = tswapl(st.st_blocks);
2306 target_st->target_st_atime = tswapl(st.st_atime);
2307 target_st->target_st_mtime = tswapl(st.st_mtime);
2308 target_st->target_st_ctime = tswapl(st.st_ctime);
2309 }
2310 }
2311 break;
2312 #ifdef TARGET_NR_olduname
2313 case TARGET_NR_olduname:
2314 goto unimplemented;
2315 #endif
2316 #ifdef TARGET_NR_iopl
2317 case TARGET_NR_iopl:
2318 goto unimplemented;
2319 #endif
2320 case TARGET_NR_vhangup:
2321 ret = get_errno(vhangup());
2322 break;
2323 #ifdef TARGET_NR_idle
2324 case TARGET_NR_idle:
2325 goto unimplemented;
2326 #endif
2327 case TARGET_NR_wait4:
2328 {
2329 int status;
2330 target_long *status_ptr = (void *)arg2;
2331 struct rusage rusage, *rusage_ptr;
2332 struct target_rusage *target_rusage = (void *)arg4;
2333 if (target_rusage)
2334 rusage_ptr = &rusage;
2335 else
2336 rusage_ptr = NULL;
2337 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2338 if (!is_error(ret)) {
2339 if (status_ptr)
2340 *status_ptr = tswap32(status);
2341 if (target_rusage) {
2342 host_to_target_rusage(target_rusage, &rusage);
2343 }
2344 }
2345 }
2346 break;
2347 case TARGET_NR_swapoff:
2348 ret = get_errno(swapoff((const char *)arg1));
2349 break;
2350 case TARGET_NR_sysinfo:
2351 goto unimplemented;
2352 case TARGET_NR_ipc:
2353 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2354 break;
2355 case TARGET_NR_fsync:
2356 ret = get_errno(fsync(arg1));
2357 break;
2358 case TARGET_NR_clone:
2359 ret = get_errno(do_fork(cpu_env, arg1, arg2));
2360 break;
2361 #ifdef __NR_exit_group
2362 /* new thread calls */
2363 case TARGET_NR_exit_group:
2364 ret = get_errno(exit_group(arg1));
2365 break;
2366 #endif
2367 case TARGET_NR_setdomainname:
2368 ret = get_errno(setdomainname((const char *)arg1, arg2));
2369 break;
2370 case TARGET_NR_uname:
2371 /* no need to transcode because we use the linux syscall */
2372 ret = get_errno(sys_uname((struct new_utsname *)arg1));
2373 break;
2374 #ifdef TARGET_I386
2375 case TARGET_NR_modify_ldt:
2376 ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2377 break;
2378 case TARGET_NR_vm86old:
2379 goto unimplemented;
2380 case TARGET_NR_vm86:
2381 ret = do_vm86(cpu_env, arg1, (void *)arg2);
2382 break;
2383 #endif
2384 case TARGET_NR_adjtimex:
2385 goto unimplemented;
2386 case TARGET_NR_create_module:
2387 case TARGET_NR_init_module:
2388 case TARGET_NR_delete_module:
2389 case TARGET_NR_get_kernel_syms:
2390 goto unimplemented;
2391 case TARGET_NR_quotactl:
2392 goto unimplemented;
2393 case TARGET_NR_getpgid:
2394 ret = get_errno(getpgid(arg1));
2395 break;
2396 case TARGET_NR_fchdir:
2397 ret = get_errno(fchdir(arg1));
2398 break;
2399 case TARGET_NR_bdflush:
2400 goto unimplemented;
2401 case TARGET_NR_sysfs:
2402 goto unimplemented;
2403 case TARGET_NR_personality:
2404 ret = get_errno(personality(arg1));
2405 break;
2406 case TARGET_NR_afs_syscall:
2407 goto unimplemented;
2408 case TARGET_NR__llseek:
2409 {
2410 #if defined (__x86_64__)
2411 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2412 *(int64_t *)arg4 = ret;
2413 #else
2414 int64_t res;
2415 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2416 *(int64_t *)arg4 = tswap64(res);
2417 #endif
2418 }
2419 break;
2420 case TARGET_NR_getdents:
2421 #if TARGET_LONG_SIZE != 4
2422 #error not supported
2423 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2424 {
2425 struct target_dirent *target_dirp = (void *)arg2;
2426 struct dirent *dirp;
2427 long count = arg3;
2428
2429 dirp = malloc(count);
2430 if (!dirp)
2431 return -ENOMEM;
2432
2433 ret = get_errno(sys_getdents(arg1, dirp, count));
2434 if (!is_error(ret)) {
2435 struct dirent *de;
2436 struct target_dirent *tde;
2437 int len = ret;
2438 int reclen, treclen;
2439 int count1, tnamelen;
2440
2441 count1 = 0;
2442 de = dirp;
2443 tde = target_dirp;
2444 while (len > 0) {
2445 reclen = de->d_reclen;
2446 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2447 tde->d_reclen = tswap16(treclen);
2448 tde->d_ino = tswapl(de->d_ino);
2449 tde->d_off = tswapl(de->d_off);
2450 tnamelen = treclen - (2 * sizeof(target_long) + 2);
2451 if (tnamelen > 256)
2452 tnamelen = 256;
2453 strncpy(tde->d_name, de->d_name, tnamelen);
2454 de = (struct dirent *)((char *)de + reclen);
2455 len -= reclen;
2456 tde = (struct dirent *)((char *)tde + treclen);
2457 count1 += treclen;
2458 }
2459 ret = count1;
2460 }
2461 free(dirp);
2462 }
2463 #else
2464 {
2465 struct dirent *dirp = (void *)arg2;
2466 long count = arg3;
2467
2468 ret = get_errno(sys_getdents(arg1, dirp, count));
2469 if (!is_error(ret)) {
2470 struct dirent *de;
2471 int len = ret;
2472 int reclen;
2473 de = dirp;
2474 while (len > 0) {
2475 reclen = de->d_reclen;
2476 if (reclen > len)
2477 break;
2478 de->d_reclen = tswap16(reclen);
2479 tswapls(&de->d_ino);
2480 tswapls(&de->d_off);
2481 de = (struct dirent *)((char *)de + reclen);
2482 len -= reclen;
2483 }
2484 }
2485 }
2486 #endif
2487 break;
2488 #ifdef TARGET_NR_getdents64
2489 case TARGET_NR_getdents64:
2490 {
2491 struct dirent64 *dirp = (void *)arg2;
2492 long count = arg3;
2493 ret = get_errno(sys_getdents64(arg1, dirp, count));
2494 if (!is_error(ret)) {
2495 struct dirent64 *de;
2496 int len = ret;
2497 int reclen;
2498 de = dirp;
2499 while (len > 0) {
2500 reclen = de->d_reclen;
2501 if (reclen > len)
2502 break;
2503 de->d_reclen = tswap16(reclen);
2504 tswap64s(&de->d_ino);
2505 tswap64s(&de->d_off);
2506 de = (struct dirent64 *)((char *)de + reclen);
2507 len -= reclen;
2508 }
2509 }
2510 }
2511 break;
2512 #endif /* TARGET_NR_getdents64 */
2513 case TARGET_NR__newselect:
2514 ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2515 (void *)arg5);
2516 break;
2517 case TARGET_NR_poll:
2518 {
2519 struct target_pollfd *target_pfd = (void *)arg1;
2520 unsigned int nfds = arg2;
2521 int timeout = arg3;
2522 struct pollfd *pfd;
2523 unsigned int i;
2524
2525 pfd = alloca(sizeof(struct pollfd) * nfds);
2526 for(i = 0; i < nfds; i++) {
2527 pfd[i].fd = tswap32(target_pfd[i].fd);
2528 pfd[i].events = tswap16(target_pfd[i].events);
2529 }
2530 ret = get_errno(poll(pfd, nfds, timeout));
2531 if (!is_error(ret)) {
2532 for(i = 0; i < nfds; i++) {
2533 target_pfd[i].revents = tswap16(pfd[i].revents);
2534 }
2535 }
2536 }
2537 break;
2538 case TARGET_NR_flock:
2539 /* NOTE: the flock constant seems to be the same for every
2540 Linux platform */
2541 ret = get_errno(flock(arg1, arg2));
2542 break;
2543 case TARGET_NR_readv:
2544 {
2545 int count = arg3;
2546 int i;
2547 struct iovec *vec;
2548 struct target_iovec *target_vec = (void *)arg2;
2549
2550 vec = alloca(count * sizeof(struct iovec));
2551 for(i = 0;i < count; i++) {
2552 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2553 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2554 }
2555 ret = get_errno(readv(arg1, vec, count));
2556 }
2557 break;
2558 case TARGET_NR_writev:
2559 {
2560 int count = arg3;
2561 int i;
2562 struct iovec *vec;
2563 struct target_iovec *target_vec = (void *)arg2;
2564
2565 vec = alloca(count * sizeof(struct iovec));
2566 for(i = 0;i < count; i++) {
2567 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2568 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2569 }
2570 ret = get_errno(writev(arg1, vec, count));
2571 }
2572 break;
2573 case TARGET_NR_getsid:
2574 ret = get_errno(getsid(arg1));
2575 break;
2576 case TARGET_NR_fdatasync:
2577 ret = get_errno(fdatasync(arg1));
2578 break;
2579 case TARGET_NR__sysctl:
2580 goto unimplemented;
2581 case TARGET_NR_sched_setparam:
2582 {
2583 struct sched_param *target_schp = (void *)arg2;
2584 struct sched_param schp;
2585 schp.sched_priority = tswap32(target_schp->sched_priority);
2586 ret = get_errno(sched_setparam(arg1, &schp));
2587 }
2588 break;
2589 case TARGET_NR_sched_getparam:
2590 {
2591 struct sched_param *target_schp = (void *)arg2;
2592 struct sched_param schp;
2593 ret = get_errno(sched_getparam(arg1, &schp));
2594 if (!is_error(ret)) {
2595 target_schp->sched_priority = tswap32(schp.sched_priority);
2596 }
2597 }
2598 break;
2599 case TARGET_NR_sched_setscheduler:
2600 {
2601 struct sched_param *target_schp = (void *)arg3;
2602 struct sched_param schp;
2603 schp.sched_priority = tswap32(target_schp->sched_priority);
2604 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2605 }
2606 break;
2607 case TARGET_NR_sched_getscheduler:
2608 ret = get_errno(sched_getscheduler(arg1));
2609 break;
2610 case TARGET_NR_sched_yield:
2611 ret = get_errno(sched_yield());
2612 break;
2613 case TARGET_NR_sched_get_priority_max:
2614 ret = get_errno(sched_get_priority_max(arg1));
2615 break;
2616 case TARGET_NR_sched_get_priority_min:
2617 ret = get_errno(sched_get_priority_min(arg1));
2618 break;
2619 case TARGET_NR_sched_rr_get_interval:
2620 {
2621 struct target_timespec *target_ts = (void *)arg2;
2622 struct timespec ts;
2623 ret = get_errno(sched_rr_get_interval(arg1, &ts));
2624 if (!is_error(ret)) {
2625 target_ts->tv_sec = tswapl(ts.tv_sec);
2626 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2627 }
2628 }
2629 break;
2630 case TARGET_NR_nanosleep:
2631 {
2632 struct target_timespec *target_req = (void *)arg1;
2633 struct target_timespec *target_rem = (void *)arg2;
2634 struct timespec req, rem;
2635 req.tv_sec = tswapl(target_req->tv_sec);
2636 req.tv_nsec = tswapl(target_req->tv_nsec);
2637 ret = get_errno(nanosleep(&req, &rem));
2638 if (is_error(ret) && target_rem) {
2639 target_rem->tv_sec = tswapl(rem.tv_sec);
2640 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2641 }
2642 }
2643 break;
2644 case TARGET_NR_query_module:
2645 goto unimplemented;
2646 case TARGET_NR_nfsservctl:
2647 goto unimplemented;
2648 case TARGET_NR_prctl:
2649 goto unimplemented;
2650 #ifdef TARGET_NR_pread
2651 case TARGET_NR_pread:
2652 page_unprotect_range((void *)arg2, arg3);
2653 ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2654 break;
2655 case TARGET_NR_pwrite:
2656 ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2657 break;
2658 #endif
2659 case TARGET_NR_getcwd:
2660 ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2661 break;
2662 case TARGET_NR_capget:
2663 goto unimplemented;
2664 case TARGET_NR_capset:
2665 goto unimplemented;
2666 case TARGET_NR_sigaltstack:
2667 goto unimplemented;
2668 case TARGET_NR_sendfile:
2669 goto unimplemented;
2670 #ifdef TARGET_NR_getpmsg
2671 case TARGET_NR_getpmsg:
2672 goto unimplemented;
2673 #endif
2674 #ifdef TARGET_NR_putpmsg
2675 case TARGET_NR_putpmsg:
2676 goto unimplemented;
2677 #endif
2678 case TARGET_NR_vfork:
2679 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2680 break;
2681 #ifdef TARGET_NR_ugetrlimit
2682 case TARGET_NR_ugetrlimit:
2683 {
2684 struct rlimit rlim;
2685 ret = get_errno(getrlimit(arg1, &rlim));
2686 if (!is_error(ret)) {
2687 struct target_rlimit *target_rlim = (void *)arg2;
2688 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2689 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2690 }
2691 break;
2692 }
2693 #endif
2694 case TARGET_NR_truncate64:
2695 goto unimplemented;
2696 case TARGET_NR_ftruncate64:
2697 goto unimplemented;
2698 case TARGET_NR_stat64:
2699 ret = get_errno(stat(path((const char *)arg1), &st));
2700 goto do_stat64;
2701 case TARGET_NR_lstat64:
2702 ret = get_errno(lstat(path((const char *)arg1), &st));
2703 goto do_stat64;
2704 case TARGET_NR_fstat64:
2705 {
2706 ret = get_errno(fstat(arg1, &st));
2707 do_stat64:
2708 if (!is_error(ret)) {
2709 struct target_stat64 *target_st = (void *)arg2;
2710 memset(target_st, 0, sizeof(struct target_stat64));
2711 put_user(st.st_dev, &target_st->st_dev);
2712 put_user(st.st_ino, &target_st->st_ino);
2713 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2714 put_user(st.st_ino, &target_st->__st_ino);
2715 #endif
2716 put_user(st.st_mode, &target_st->st_mode);
2717 put_user(st.st_nlink, &target_st->st_nlink);
2718 put_user(st.st_uid, &target_st->st_uid);
2719 put_user(st.st_gid, &target_st->st_gid);
2720 put_user(st.st_rdev, &target_st->st_rdev);
2721 /* XXX: better use of kernel struct */
2722 put_user(st.st_size, &target_st->st_size);
2723 put_user(st.st_blksize, &target_st->st_blksize);
2724 put_user(st.st_blocks, &target_st->st_blocks);
2725 put_user(st.st_atime, &target_st->target_st_atime);
2726 put_user(st.st_mtime, &target_st->target_st_mtime);
2727 put_user(st.st_ctime, &target_st->target_st_ctime);
2728 }
2729 }
2730 break;
2731
2732 #ifdef USE_UID16
2733 case TARGET_NR_lchown:
2734 ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2735 break;
2736 case TARGET_NR_getuid:
2737 ret = get_errno(high2lowuid(getuid()));
2738 break;
2739 case TARGET_NR_getgid:
2740 ret = get_errno(high2lowgid(getgid()));
2741 break;
2742 case TARGET_NR_geteuid:
2743 ret = get_errno(high2lowuid(geteuid()));
2744 break;
2745 case TARGET_NR_getegid:
2746 ret = get_errno(high2lowgid(getegid()));
2747 break;
2748 case TARGET_NR_setreuid:
2749 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2750 break;
2751 case TARGET_NR_setregid:
2752 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2753 break;
2754 case TARGET_NR_getgroups:
2755 {
2756 int gidsetsize = arg1;
2757 uint16_t *target_grouplist = (void *)arg2;
2758 gid_t *grouplist;
2759 int i;
2760
2761 grouplist = alloca(gidsetsize * sizeof(gid_t));
2762 ret = get_errno(getgroups(gidsetsize, grouplist));
2763 if (!is_error(ret)) {
2764 for(i = 0;i < gidsetsize; i++)
2765 target_grouplist[i] = tswap16(grouplist[i]);
2766 }
2767 }
2768 break;
2769 case TARGET_NR_setgroups:
2770 {
2771 int gidsetsize = arg1;
2772 uint16_t *target_grouplist = (void *)arg2;
2773 gid_t *grouplist;
2774 int i;
2775
2776 grouplist = alloca(gidsetsize * sizeof(gid_t));
2777 for(i = 0;i < gidsetsize; i++)
2778 grouplist[i] = tswap16(target_grouplist[i]);
2779 ret = get_errno(setgroups(gidsetsize, grouplist));
2780 }
2781 break;
2782 case TARGET_NR_fchown:
2783 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2784 break;
2785 #ifdef TARGET_NR_setresuid
2786 case TARGET_NR_setresuid:
2787 ret = get_errno(setresuid(low2highuid(arg1),
2788 low2highuid(arg2),
2789 low2highuid(arg3)));
2790 break;
2791 #endif
2792 #ifdef TARGET_NR_getresuid
2793 case TARGET_NR_getresuid:
2794 {
2795 int ruid, euid, suid;
2796 ret = get_errno(getresuid(&ruid, &euid, &suid));
2797 if (!is_error(ret)) {
2798 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2799 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2800 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2801 }
2802 }
2803 break;
2804 #endif
2805 #ifdef TARGET_NR_getresgid
2806 case TARGET_NR_setresgid:
2807 ret = get_errno(setresgid(low2highgid(arg1),
2808 low2highgid(arg2),
2809 low2highgid(arg3)));
2810 break;
2811 #endif
2812 #ifdef TARGET_NR_getresgid
2813 case TARGET_NR_getresgid:
2814 {
2815 int rgid, egid, sgid;
2816 ret = get_errno(getresgid(&rgid, &egid, &sgid));
2817 if (!is_error(ret)) {
2818 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2819 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2820 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2821 }
2822 }
2823 break;
2824 #endif
2825 case TARGET_NR_chown:
2826 ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2827 break;
2828 case TARGET_NR_setuid:
2829 ret = get_errno(setuid(low2highuid(arg1)));
2830 break;
2831 case TARGET_NR_setgid:
2832 ret = get_errno(setgid(low2highgid(arg1)));
2833 break;
2834 case TARGET_NR_setfsuid:
2835 ret = get_errno(setfsuid(arg1));
2836 break;
2837 case TARGET_NR_setfsgid:
2838 ret = get_errno(setfsgid(arg1));
2839 break;
2840 #endif /* USE_UID16 */
2841
2842 case TARGET_NR_lchown32:
2843 ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2844 break;
2845 case TARGET_NR_getuid32:
2846 ret = get_errno(getuid());
2847 break;
2848 case TARGET_NR_getgid32:
2849 ret = get_errno(getgid());
2850 break;
2851 case TARGET_NR_geteuid32:
2852 ret = get_errno(geteuid());
2853 break;
2854 case TARGET_NR_getegid32:
2855 ret = get_errno(getegid());
2856 break;
2857 case TARGET_NR_setreuid32:
2858 ret = get_errno(setreuid(arg1, arg2));
2859 break;
2860 case TARGET_NR_setregid32:
2861 ret = get_errno(setregid(arg1, arg2));
2862 break;
2863 case TARGET_NR_getgroups32:
2864 goto unimplemented;
2865 case TARGET_NR_setgroups32:
2866 goto unimplemented;
2867 case TARGET_NR_fchown32:
2868 ret = get_errno(fchown(arg1, arg2, arg3));
2869 break;
2870 case TARGET_NR_setresuid32:
2871 ret = get_errno(setresuid(arg1, arg2, arg3));
2872 break;
2873 case TARGET_NR_getresuid32:
2874 {
2875 int ruid, euid, suid;
2876 ret = get_errno(getresuid(&ruid, &euid, &suid));
2877 if (!is_error(ret)) {
2878 *(uint32_t *)arg1 = tswap32(ruid);
2879 *(uint32_t *)arg2 = tswap32(euid);
2880 *(uint32_t *)arg3 = tswap32(suid);
2881 }
2882 }
2883 break;
2884 case TARGET_NR_setresgid32:
2885 ret = get_errno(setresgid(arg1, arg2, arg3));
2886 break;
2887 case TARGET_NR_getresgid32:
2888 {
2889 int rgid, egid, sgid;
2890 ret = get_errno(getresgid(&rgid, &egid, &sgid));
2891 if (!is_error(ret)) {
2892 *(uint32_t *)arg1 = tswap32(rgid);
2893 *(uint32_t *)arg2 = tswap32(egid);
2894 *(uint32_t *)arg3 = tswap32(sgid);
2895 }
2896 }
2897 break;
2898 case TARGET_NR_chown32:
2899 ret = get_errno(chown((const char *)arg1, arg2, arg3));
2900 break;
2901 case TARGET_NR_setuid32:
2902 ret = get_errno(setuid(arg1));
2903 break;
2904 case TARGET_NR_setgid32:
2905 ret = get_errno(setgid(arg1));
2906 break;
2907 case TARGET_NR_setfsuid32:
2908 ret = get_errno(setfsuid(arg1));
2909 break;
2910 case TARGET_NR_setfsgid32:
2911 ret = get_errno(setfsgid(arg1));
2912 break;
2913
2914 case TARGET_NR_pivot_root:
2915 goto unimplemented;
2916 #ifdef TARGET_NR_mincore
2917 case TARGET_NR_mincore:
2918 goto unimplemented;
2919 #endif
2920 #ifdef TARGET_NR_madvise
2921 case TARGET_NR_madvise:
2922 goto unimplemented;
2923 #endif
2924 #if TARGET_LONG_BITS == 32
2925 case TARGET_NR_fcntl64:
2926 {
2927 struct flock64 fl;
2928 struct target_flock64 *target_fl = (void *)arg3;
2929
2930 switch(arg2) {
2931 case F_GETLK64:
2932 ret = get_errno(fcntl(arg1, arg2, &fl));
2933 if (ret == 0) {
2934 target_fl->l_type = tswap16(fl.l_type);
2935 target_fl->l_whence = tswap16(fl.l_whence);
2936 target_fl->l_start = tswap64(fl.l_start);
2937 target_fl->l_len = tswap64(fl.l_len);
2938 target_fl->l_pid = tswapl(fl.l_pid);
2939 }
2940 break;
2941
2942 case F_SETLK64:
2943 case F_SETLKW64:
2944 fl.l_type = tswap16(target_fl->l_type);
2945 fl.l_whence = tswap16(target_fl->l_whence);
2946 fl.l_start = tswap64(target_fl->l_start);
2947 fl.l_len = tswap64(target_fl->l_len);
2948 fl.l_pid = tswapl(target_fl->l_pid);
2949 ret = get_errno(fcntl(arg1, arg2, &fl));
2950 break;
2951 default:
2952 ret = get_errno(do_fcntl(arg1, arg2, arg3));
2953 break;
2954 }
2955 break;
2956 }
2957 #endif
2958 #ifdef TARGET_NR_security
2959 case TARGET_NR_security:
2960 goto unimplemented;
2961 #endif
2962 #ifdef TARGET_NR_getpagesize
2963 case TARGET_NR_getpagesize:
2964 ret = TARGET_PAGE_SIZE;
2965 break;
2966 #endif
2967 case TARGET_NR_gettid:
2968 ret = get_errno(gettid());
2969 break;
2970 case TARGET_NR_readahead:
2971 goto unimplemented;
2972 #ifdef TARGET_NR_setxattr
2973 case TARGET_NR_setxattr:
2974 case TARGET_NR_lsetxattr:
2975 case TARGET_NR_fsetxattr:
2976 case TARGET_NR_getxattr:
2977 case TARGET_NR_lgetxattr:
2978 case TARGET_NR_fgetxattr:
2979 case TARGET_NR_listxattr:
2980 case TARGET_NR_llistxattr:
2981 case TARGET_NR_flistxattr:
2982 case TARGET_NR_removexattr:
2983 case TARGET_NR_lremovexattr:
2984 case TARGET_NR_fremovexattr:
2985 goto unimplemented_nowarn;
2986 #endif
2987 #ifdef TARGET_NR_set_thread_area
2988 case TARGET_NR_set_thread_area:
2989 case TARGET_NR_get_thread_area:
2990 goto unimplemented_nowarn;
2991 #endif
2992 default:
2993 unimplemented:
2994 gemu_log("qemu: Unsupported syscall: %d\n", num);
2995 unimplemented_nowarn:
2996 ret = -ENOSYS;
2997 break;
2998 }
2999 fail:
3000 #ifdef DEBUG
3001 gemu_log(" = %ld\n", ret);
3002 #endif
3003 return ret;
3004 }
3005
Qemu copy for testing