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uname + sysctl fix (Paul Brook)
[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 <sys/shm.h>
45 #include <utime.h>
46 #include <sys/sysinfo.h>
47 //#include <sys/user.h>
48 #include <netinet/ip.h>
49 #include <netinet/tcp.h>
50
51 #define termios host_termios
52 #define winsize host_winsize
53 #define termio host_termio
54 #define sgttyb host_sgttyb /* same as target */
55 #define tchars host_tchars /* same as target */
56 #define ltchars host_ltchars /* same as target */
57
58 #include <linux/termios.h>
59 #include <linux/unistd.h>
60 #include <linux/utsname.h>
61 #include <linux/cdrom.h>
62 #include <linux/hdreg.h>
63 #include <linux/soundcard.h>
64 #include <linux/dirent.h>
65 #include <linux/kd.h>
66
67 #include "qemu.h"
68
69 //#define DEBUG
70
71 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
72 /* 16 bit uid wrappers emulation */
73 #define USE_UID16
74 #endif
75
76 //#include <linux/msdos_fs.h>
77 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
78 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
79
80
81 #if defined(__powerpc__)
82 #undef __syscall_nr
83 #undef __sc_loadargs_0
84 #undef __sc_loadargs_1
85 #undef __sc_loadargs_2
86 #undef __sc_loadargs_3
87 #undef __sc_loadargs_4
88 #undef __sc_loadargs_5
89 #undef __sc_asm_input_0
90 #undef __sc_asm_input_1
91 #undef __sc_asm_input_2
92 #undef __sc_asm_input_3
93 #undef __sc_asm_input_4
94 #undef __sc_asm_input_5
95 #undef _syscall0
96 #undef _syscall1
97 #undef _syscall2
98 #undef _syscall3
99 #undef _syscall4
100 #undef _syscall5
101
102 /* need to redefine syscalls as Linux kernel defines are incorrect for
103 the clobber list */
104 /* On powerpc a system call basically clobbers the same registers like a
105 * function call, with the exception of LR (which is needed for the
106 * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
107 * an error return status).
108 */
109
110 #define __syscall_nr(nr, type, name, args...) \
111 unsigned long __sc_ret, __sc_err; \
112 { \
113 register unsigned long __sc_0 __asm__ ("r0"); \
114 register unsigned long __sc_3 __asm__ ("r3"); \
115 register unsigned long __sc_4 __asm__ ("r4"); \
116 register unsigned long __sc_5 __asm__ ("r5"); \
117 register unsigned long __sc_6 __asm__ ("r6"); \
118 register unsigned long __sc_7 __asm__ ("r7"); \
119 \
120 __sc_loadargs_##nr(name, args); \
121 __asm__ __volatile__ \
122 ("sc \n\t" \
123 "mfcr %0 " \
124 : "=&r" (__sc_0), \
125 "=&r" (__sc_3), "=&r" (__sc_4), \
126 "=&r" (__sc_5), "=&r" (__sc_6), \
127 "=&r" (__sc_7) \
128 : __sc_asm_input_##nr \
129 : "cr0", "ctr", "memory", \
130 "r8", "r9", "r10","r11", "r12"); \
131 __sc_ret = __sc_3; \
132 __sc_err = __sc_0; \
133 } \
134 if (__sc_err & 0x10000000) \
135 { \
136 errno = __sc_ret; \
137 __sc_ret = -1; \
138 } \
139 return (type) __sc_ret
140
141 #define __sc_loadargs_0(name, dummy...) \
142 __sc_0 = __NR_##name
143 #define __sc_loadargs_1(name, arg1) \
144 __sc_loadargs_0(name); \
145 __sc_3 = (unsigned long) (arg1)
146 #define __sc_loadargs_2(name, arg1, arg2) \
147 __sc_loadargs_1(name, arg1); \
148 __sc_4 = (unsigned long) (arg2)
149 #define __sc_loadargs_3(name, arg1, arg2, arg3) \
150 __sc_loadargs_2(name, arg1, arg2); \
151 __sc_5 = (unsigned long) (arg3)
152 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4) \
153 __sc_loadargs_3(name, arg1, arg2, arg3); \
154 __sc_6 = (unsigned long) (arg4)
155 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5) \
156 __sc_loadargs_4(name, arg1, arg2, arg3, arg4); \
157 __sc_7 = (unsigned long) (arg5)
158
159 #define __sc_asm_input_0 "0" (__sc_0)
160 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
161 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
162 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
163 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
164 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
165
166 #define _syscall0(type,name) \
167 type name(void) \
168 { \
169 __syscall_nr(0, type, name); \
170 }
171
172 #define _syscall1(type,name,type1,arg1) \
173 type name(type1 arg1) \
174 { \
175 __syscall_nr(1, type, name, arg1); \
176 }
177
178 #define _syscall2(type,name,type1,arg1,type2,arg2) \
179 type name(type1 arg1, type2 arg2) \
180 { \
181 __syscall_nr(2, type, name, arg1, arg2); \
182 }
183
184 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
185 type name(type1 arg1, type2 arg2, type3 arg3) \
186 { \
187 __syscall_nr(3, type, name, arg1, arg2, arg3); \
188 }
189
190 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
191 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
192 { \
193 __syscall_nr(4, type, name, arg1, arg2, arg3, arg4); \
194 }
195
196 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
197 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
198 { \
199 __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5); \
200 }
201 #endif
202
203 #define __NR_sys_uname __NR_uname
204 #define __NR_sys_getcwd1 __NR_getcwd
205 #define __NR_sys_statfs __NR_statfs
206 #define __NR_sys_fstatfs __NR_fstatfs
207 #define __NR_sys_getdents __NR_getdents
208 #define __NR_sys_getdents64 __NR_getdents64
209 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
210
211 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
212 #define __NR__llseek __NR_lseek
213 #endif
214
215 #ifdef __NR_gettid
216 _syscall0(int, gettid)
217 #else
218 static int gettid(void) {
219 return -ENOSYS;
220 }
221 #endif
222 _syscall1(int,sys_uname,struct new_utsname *,buf)
223 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
224 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
225 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
226 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
227 loff_t *, res, uint, wh);
228 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
229 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
230 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
231 #ifdef __NR_exit_group
232 _syscall1(int,exit_group,int,error_code)
233 #endif
234
235 extern int personality(int);
236 extern int flock(int, int);
237 extern int setfsuid(int);
238 extern int setfsgid(int);
239 extern int setresuid(uid_t, uid_t, uid_t);
240 extern int getresuid(uid_t *, uid_t *, uid_t *);
241 extern int setresgid(gid_t, gid_t, gid_t);
242 extern int getresgid(gid_t *, gid_t *, gid_t *);
243 extern int setgroups(int, gid_t *);
244
245 static inline long get_errno(long ret)
246 {
247 if (ret == -1)
248 return -errno;
249 else
250 return ret;
251 }
252
253 static inline int is_error(long ret)
254 {
255 return (unsigned long)ret >= (unsigned long)(-4096);
256 }
257
258 static char *target_brk;
259 static char *target_original_brk;
260
261 void target_set_brk(char *new_brk)
262 {
263 target_brk = new_brk;
264 target_original_brk = new_brk;
265 }
266
267 static long do_brk(char *new_brk)
268 {
269 char *brk_page;
270 long mapped_addr;
271 int new_alloc_size;
272
273 if (!new_brk)
274 return (long)target_brk;
275 if (new_brk < target_original_brk)
276 return -ENOMEM;
277
278 brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
279
280 /* If the new brk is less than this, set it and we're done... */
281 if (new_brk < brk_page) {
282 target_brk = new_brk;
283 return (long)target_brk;
284 }
285
286 /* We need to allocate more memory after the brk... */
287 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
288 mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size,
289 PROT_READ|PROT_WRITE,
290 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
291 if (is_error(mapped_addr)) {
292 return mapped_addr;
293 } else {
294 target_brk = new_brk;
295 return (long)target_brk;
296 }
297 }
298
299 static inline fd_set *target_to_host_fds(fd_set *fds,
300 target_long *target_fds, int n)
301 {
302 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
303 return (fd_set *)target_fds;
304 #else
305 int i, b;
306 if (target_fds) {
307 FD_ZERO(fds);
308 for(i = 0;i < n; i++) {
309 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
310 (i & (TARGET_LONG_BITS - 1))) & 1;
311 if (b)
312 FD_SET(i, fds);
313 }
314 return fds;
315 } else {
316 return NULL;
317 }
318 #endif
319 }
320
321 static inline void host_to_target_fds(target_long *target_fds,
322 fd_set *fds, int n)
323 {
324 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
325 /* nothing to do */
326 #else
327 int i, nw, j, k;
328 target_long v;
329
330 if (target_fds) {
331 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
332 k = 0;
333 for(i = 0;i < nw; i++) {
334 v = 0;
335 for(j = 0; j < TARGET_LONG_BITS; j++) {
336 v |= ((FD_ISSET(k, fds) != 0) << j);
337 k++;
338 }
339 target_fds[i] = tswapl(v);
340 }
341 }
342 #endif
343 }
344
345 #if defined(__alpha__)
346 #define HOST_HZ 1024
347 #else
348 #define HOST_HZ 100
349 #endif
350
351 static inline long host_to_target_clock_t(long ticks)
352 {
353 #if HOST_HZ == TARGET_HZ
354 return ticks;
355 #else
356 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
357 #endif
358 }
359
360 static inline void host_to_target_rusage(struct target_rusage *target_rusage,
361 const struct rusage *rusage)
362 {
363 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
364 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
365 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
366 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
367 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
368 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
369 target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
370 target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
371 target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
372 target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
373 target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
374 target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
375 target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
376 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
377 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
378 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
379 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
380 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
381 }
382
383 static inline void target_to_host_timeval(struct timeval *tv,
384 const struct target_timeval *target_tv)
385 {
386 tv->tv_sec = tswapl(target_tv->tv_sec);
387 tv->tv_usec = tswapl(target_tv->tv_usec);
388 }
389
390 static inline void host_to_target_timeval(struct target_timeval *target_tv,
391 const struct timeval *tv)
392 {
393 target_tv->tv_sec = tswapl(tv->tv_sec);
394 target_tv->tv_usec = tswapl(tv->tv_usec);
395 }
396
397
398 static long do_select(long n,
399 target_long *target_rfds, target_long *target_wfds,
400 target_long *target_efds, struct target_timeval *target_tv)
401 {
402 fd_set rfds, wfds, efds;
403 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
404 struct timeval tv, *tv_ptr;
405 long ret;
406
407 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
408 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
409 efds_ptr = target_to_host_fds(&efds, target_efds, n);
410
411 if (target_tv) {
412 target_to_host_timeval(&tv, target_tv);
413 tv_ptr = &tv;
414 } else {
415 tv_ptr = NULL;
416 }
417 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
418 if (!is_error(ret)) {
419 host_to_target_fds(target_rfds, rfds_ptr, n);
420 host_to_target_fds(target_wfds, wfds_ptr, n);
421 host_to_target_fds(target_efds, efds_ptr, n);
422
423 if (target_tv) {
424 host_to_target_timeval(target_tv, &tv);
425 }
426 }
427 return ret;
428 }
429
430 static inline void target_to_host_sockaddr(struct sockaddr *addr,
431 struct target_sockaddr *target_addr,
432 socklen_t len)
433 {
434 memcpy(addr, target_addr, len);
435 addr->sa_family = tswap16(target_addr->sa_family);
436 }
437
438 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
439 struct sockaddr *addr,
440 socklen_t len)
441 {
442 memcpy(target_addr, addr, len);
443 target_addr->sa_family = tswap16(addr->sa_family);
444 }
445
446 static inline void target_to_host_cmsg(struct msghdr *msgh,
447 struct target_msghdr *target_msgh)
448 {
449 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
450 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
451 socklen_t space = 0;
452
453 while (cmsg && target_cmsg) {
454 void *data = CMSG_DATA(cmsg);
455 void *target_data = TARGET_CMSG_DATA(target_cmsg);
456
457 int len = tswapl(target_cmsg->cmsg_len)
458 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
459
460 space += CMSG_SPACE(len);
461 if (space > msgh->msg_controllen) {
462 space -= CMSG_SPACE(len);
463 gemu_log("Host cmsg overflow");
464 break;
465 }
466
467 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
468 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
469 cmsg->cmsg_len = CMSG_LEN(len);
470
471 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
472 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
473 memcpy(data, target_data, len);
474 } else {
475 int *fd = (int *)data;
476 int *target_fd = (int *)target_data;
477 int i, numfds = len / sizeof(int);
478
479 for (i = 0; i < numfds; i++)
480 fd[i] = tswap32(target_fd[i]);
481 }
482
483 cmsg = CMSG_NXTHDR(msgh, cmsg);
484 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
485 }
486
487 msgh->msg_controllen = space;
488 }
489
490 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
491 struct msghdr *msgh)
492 {
493 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
494 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
495 socklen_t space = 0;
496
497 while (cmsg && target_cmsg) {
498 void *data = CMSG_DATA(cmsg);
499 void *target_data = TARGET_CMSG_DATA(target_cmsg);
500
501 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
502
503 space += TARGET_CMSG_SPACE(len);
504 if (space > tswapl(target_msgh->msg_controllen)) {
505 space -= TARGET_CMSG_SPACE(len);
506 gemu_log("Target cmsg overflow");
507 break;
508 }
509
510 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
511 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
512 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
513
514 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
515 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
516 memcpy(target_data, data, len);
517 } else {
518 int *fd = (int *)data;
519 int *target_fd = (int *)target_data;
520 int i, numfds = len / sizeof(int);
521
522 for (i = 0; i < numfds; i++)
523 target_fd[i] = tswap32(fd[i]);
524 }
525
526 cmsg = CMSG_NXTHDR(msgh, cmsg);
527 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
528 }
529
530 msgh->msg_controllen = tswapl(space);
531 }
532
533 static long do_setsockopt(int sockfd, int level, int optname,
534 void *optval, socklen_t optlen)
535 {
536 int val, ret;
537
538 switch(level) {
539 case SOL_TCP:
540 /* TCP options all take an 'int' value. */
541 if (optlen < sizeof(uint32_t))
542 return -EINVAL;
543
544 if (get_user(val, (uint32_t *)optval))
545 return -EFAULT;
546 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
547 break;
548 case SOL_IP:
549 switch(optname) {
550 case IP_HDRINCL:
551 val = 0;
552 if (optlen >= sizeof(uint32_t)) {
553 if (get_user(val, (uint32_t *)optval))
554 return -EFAULT;
555 } else if (optlen >= 1) {
556 if (get_user(val, (uint8_t *)optval))
557 return -EFAULT;
558 }
559 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
560 break;
561 default:
562 goto unimplemented;
563 }
564 break;
565 case SOL_SOCKET:
566 switch (optname) {
567 /* Options with 'int' argument. */
568 case SO_DEBUG:
569 case SO_REUSEADDR:
570 case SO_TYPE:
571 case SO_ERROR:
572 case SO_DONTROUTE:
573 case SO_BROADCAST:
574 case SO_SNDBUF:
575 case SO_RCVBUF:
576 case SO_KEEPALIVE:
577 case SO_OOBINLINE:
578 case SO_NO_CHECK:
579 case SO_PRIORITY:
580 case SO_BSDCOMPAT:
581 case SO_PASSCRED:
582 case SO_TIMESTAMP:
583 case SO_RCVLOWAT:
584 case SO_RCVTIMEO:
585 case SO_SNDTIMEO:
586 if (optlen < sizeof(uint32_t))
587 return -EINVAL;
588 if (get_user(val, (uint32_t *)optval))
589 return -EFAULT;
590 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
591 break;
592 default:
593 goto unimplemented;
594 }
595 break;
596 default:
597 unimplemented:
598 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
599 ret = -ENOSYS;
600 }
601 return ret;
602 }
603
604 static long do_getsockopt(int sockfd, int level, int optname,
605 void *optval, socklen_t *optlen)
606 {
607 int len, lv, val, ret;
608
609 switch(level) {
610 case SOL_SOCKET:
611 switch (optname) {
612 case SO_LINGER:
613 case SO_RCVTIMEO:
614 case SO_SNDTIMEO:
615 case SO_PEERCRED:
616 case SO_PEERNAME:
617 /* These don't just return a single integer */
618 goto unimplemented;
619 default:
620 if (get_user(len, optlen))
621 return -EFAULT;
622 if (len < 0)
623 return -EINVAL;
624 lv = sizeof(int);
625 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
626 if (ret < 0)
627 return ret;
628 val = tswap32(val);
629 if (len > lv)
630 len = lv;
631 if (copy_to_user(optval, &val, len))
632 return -EFAULT;
633 if (put_user(len, optlen))
634 return -EFAULT;
635 break;
636 }
637 break;
638 default:
639 unimplemented:
640 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
641 level, optname);
642 ret = -ENOSYS;
643 break;
644 }
645 return ret;
646 }
647
648 static long do_socketcall(int num, int32_t *vptr)
649 {
650 long ret;
651
652 switch(num) {
653 case SOCKOP_socket:
654 {
655 int domain = tswap32(vptr[0]);
656 int type = tswap32(vptr[1]);
657 int protocol = tswap32(vptr[2]);
658
659 ret = get_errno(socket(domain, type, protocol));
660 }
661 break;
662 case SOCKOP_bind:
663 {
664 int sockfd = tswap32(vptr[0]);
665 void *target_addr = (void *)tswap32(vptr[1]);
666 socklen_t addrlen = tswap32(vptr[2]);
667 void *addr = alloca(addrlen);
668
669 target_to_host_sockaddr(addr, target_addr, addrlen);
670 ret = get_errno(bind(sockfd, addr, addrlen));
671 }
672 break;
673 case SOCKOP_connect:
674 {
675 int sockfd = tswap32(vptr[0]);
676 void *target_addr = (void *)tswap32(vptr[1]);
677 socklen_t addrlen = tswap32(vptr[2]);
678 void *addr = alloca(addrlen);
679
680 target_to_host_sockaddr(addr, target_addr, addrlen);
681 ret = get_errno(connect(sockfd, addr, addrlen));
682 }
683 break;
684 case SOCKOP_listen:
685 {
686 int sockfd = tswap32(vptr[0]);
687 int backlog = tswap32(vptr[1]);
688
689 ret = get_errno(listen(sockfd, backlog));
690 }
691 break;
692 case SOCKOP_accept:
693 {
694 int sockfd = tswap32(vptr[0]);
695 void *target_addr = (void *)tswap32(vptr[1]);
696 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
697 socklen_t addrlen = tswap32(*target_addrlen);
698 void *addr = alloca(addrlen);
699
700 ret = get_errno(accept(sockfd, addr, &addrlen));
701 if (!is_error(ret)) {
702 host_to_target_sockaddr(target_addr, addr, addrlen);
703 *target_addrlen = tswap32(addrlen);
704 }
705 }
706 break;
707 case SOCKOP_getsockname:
708 {
709 int sockfd = tswap32(vptr[0]);
710 void *target_addr = (void *)tswap32(vptr[1]);
711 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
712 socklen_t addrlen = tswap32(*target_addrlen);
713 void *addr = alloca(addrlen);
714
715 ret = get_errno(getsockname(sockfd, addr, &addrlen));
716 if (!is_error(ret)) {
717 host_to_target_sockaddr(target_addr, addr, addrlen);
718 *target_addrlen = tswap32(addrlen);
719 }
720 }
721 break;
722 case SOCKOP_getpeername:
723 {
724 int sockfd = tswap32(vptr[0]);
725 void *target_addr = (void *)tswap32(vptr[1]);
726 uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
727 socklen_t addrlen = tswap32(*target_addrlen);
728 void *addr = alloca(addrlen);
729
730 ret = get_errno(getpeername(sockfd, addr, &addrlen));
731 if (!is_error(ret)) {
732 host_to_target_sockaddr(target_addr, addr, addrlen);
733 *target_addrlen = tswap32(addrlen);
734 }
735 }
736 break;
737 case SOCKOP_socketpair:
738 {
739 int domain = tswap32(vptr[0]);
740 int type = tswap32(vptr[1]);
741 int protocol = tswap32(vptr[2]);
742 int32_t *target_tab = (void *)tswap32(vptr[3]);
743 int tab[2];
744
745 ret = get_errno(socketpair(domain, type, protocol, tab));
746 if (!is_error(ret)) {
747 target_tab[0] = tswap32(tab[0]);
748 target_tab[1] = tswap32(tab[1]);
749 }
750 }
751 break;
752 case SOCKOP_send:
753 {
754 int sockfd = tswap32(vptr[0]);
755 void *msg = (void *)tswap32(vptr[1]);
756 size_t len = tswap32(vptr[2]);
757 int flags = tswap32(vptr[3]);
758
759 ret = get_errno(send(sockfd, msg, len, flags));
760 }
761 break;
762 case SOCKOP_recv:
763 {
764 int sockfd = tswap32(vptr[0]);
765 void *msg = (void *)tswap32(vptr[1]);
766 size_t len = tswap32(vptr[2]);
767 int flags = tswap32(vptr[3]);
768
769 ret = get_errno(recv(sockfd, msg, len, flags));
770 }
771 break;
772 case SOCKOP_sendto:
773 {
774 int sockfd = tswap32(vptr[0]);
775 void *msg = (void *)tswap32(vptr[1]);
776 size_t len = tswap32(vptr[2]);
777 int flags = tswap32(vptr[3]);
778 void *target_addr = (void *)tswap32(vptr[4]);
779 socklen_t addrlen = tswap32(vptr[5]);
780 void *addr = alloca(addrlen);
781
782 target_to_host_sockaddr(addr, target_addr, addrlen);
783 ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
784 }
785 break;
786 case SOCKOP_recvfrom:
787 {
788 int sockfd = tswap32(vptr[0]);
789 void *msg = (void *)tswap32(vptr[1]);
790 size_t len = tswap32(vptr[2]);
791 int flags = tswap32(vptr[3]);
792 void *target_addr = (void *)tswap32(vptr[4]);
793 uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
794 socklen_t addrlen = tswap32(*target_addrlen);
795 void *addr = alloca(addrlen);
796
797 ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
798 if (!is_error(ret)) {
799 host_to_target_sockaddr(target_addr, addr, addrlen);
800 *target_addrlen = tswap32(addrlen);
801 }
802 }
803 break;
804 case SOCKOP_shutdown:
805 {
806 int sockfd = tswap32(vptr[0]);
807 int how = tswap32(vptr[1]);
808
809 ret = get_errno(shutdown(sockfd, how));
810 }
811 break;
812 case SOCKOP_sendmsg:
813 case SOCKOP_recvmsg:
814 {
815 int fd;
816 struct target_msghdr *msgp;
817 struct msghdr msg;
818 int flags, count, i;
819 struct iovec *vec;
820 struct target_iovec *target_vec;
821
822 msgp = (void *)tswap32(vptr[1]);
823 msg.msg_name = (void *)tswapl(msgp->msg_name);
824 msg.msg_namelen = tswapl(msgp->msg_namelen);
825 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
826 msg.msg_control = alloca(msg.msg_controllen);
827 msg.msg_flags = tswap32(msgp->msg_flags);
828
829 count = tswapl(msgp->msg_iovlen);
830 vec = alloca(count * sizeof(struct iovec));
831 target_vec = (void *)tswapl(msgp->msg_iov);
832 for(i = 0;i < count; i++) {
833 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
834 vec[i].iov_len = tswapl(target_vec[i].iov_len);
835 }
836 msg.msg_iovlen = count;
837 msg.msg_iov = vec;
838
839 fd = tswap32(vptr[0]);
840 flags = tswap32(vptr[2]);
841 if (num == SOCKOP_sendmsg) {
842 target_to_host_cmsg(&msg, msgp);
843 ret = get_errno(sendmsg(fd, &msg, flags));
844 } else {
845 ret = get_errno(recvmsg(fd, &msg, flags));
846 if (!is_error(ret))
847 host_to_target_cmsg(msgp, &msg);
848 }
849 }
850 break;
851 case SOCKOP_setsockopt:
852 {
853 int sockfd = tswap32(vptr[0]);
854 int level = tswap32(vptr[1]);
855 int optname = tswap32(vptr[2]);
856 void *optval = (void *)tswap32(vptr[3]);
857 socklen_t optlen = tswap32(vptr[4]);
858
859 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
860 }
861 break;
862 case SOCKOP_getsockopt:
863 {
864 int sockfd = tswap32(vptr[0]);
865 int level = tswap32(vptr[1]);
866 int optname = tswap32(vptr[2]);
867 void *optval = (void *)tswap32(vptr[3]);
868 uint32_t *poptlen = (void *)tswap32(vptr[4]);
869
870 ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
871 }
872 break;
873 default:
874 gemu_log("Unsupported socketcall: %d\n", num);
875 ret = -ENOSYS;
876 break;
877 }
878 return ret;
879 }
880
881
882 #define N_SHM_REGIONS 32
883
884 static struct shm_region {
885 uint32_t start;
886 uint32_t size;
887 } shm_regions[N_SHM_REGIONS];
888
889 static long do_ipc(long call, long first, long second, long third,
890 long ptr, long fifth)
891 {
892 int version;
893 long ret = 0;
894 unsigned long raddr;
895 struct shmid_ds shm_info;
896 int i;
897
898 version = call >> 16;
899 call &= 0xffff;
900
901 switch (call) {
902 case IPCOP_shmat:
903 /* SHM_* flags are the same on all linux platforms */
904 ret = get_errno((long) shmat(first, (void *) ptr, second));
905 if (is_error(ret))
906 break;
907 raddr = ret;
908 /* find out the length of the shared memory segment */
909
910 ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
911 if (is_error(ret)) {
912 /* can't get length, bail out */
913 shmdt((void *) raddr);
914 break;
915 }
916 page_set_flags(raddr, raddr + shm_info.shm_segsz,
917 PAGE_VALID | PAGE_READ |
918 ((second & SHM_RDONLY)? 0: PAGE_WRITE));
919 for (i = 0; i < N_SHM_REGIONS; ++i) {
920 if (shm_regions[i].start == 0) {
921 shm_regions[i].start = raddr;
922 shm_regions[i].size = shm_info.shm_segsz;
923 break;
924 }
925 }
926 if (put_user(raddr, (uint32_t *)third))
927 return -EFAULT;
928 ret = 0;
929 break;
930 case IPCOP_shmdt:
931 for (i = 0; i < N_SHM_REGIONS; ++i) {
932 if (shm_regions[i].start == ptr) {
933 shm_regions[i].start = 0;
934 page_set_flags(ptr, shm_regions[i].size, 0);
935 break;
936 }
937 }
938 ret = get_errno(shmdt((void *) ptr));
939 break;
940
941 case IPCOP_shmget:
942 /* IPC_* flag values are the same on all linux platforms */
943 ret = get_errno(shmget(first, second, third));
944 break;
945
946 /* IPC_* and SHM_* command values are the same on all linux platforms */
947 case IPCOP_shmctl:
948 switch(second) {
949 case IPC_RMID:
950 case SHM_LOCK:
951 case SHM_UNLOCK:
952 ret = get_errno(shmctl(first, second, NULL));
953 break;
954 default:
955 goto unimplemented;
956 }
957 break;
958 default:
959 unimplemented:
960 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
961 ret = -ENOSYS;
962 break;
963 }
964 return ret;
965 }
966
967 /* kernel structure types definitions */
968 #define IFNAMSIZ 16
969
970 #define STRUCT(name, list...) STRUCT_ ## name,
971 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
972 enum {
973 #include "syscall_types.h"
974 };
975 #undef STRUCT
976 #undef STRUCT_SPECIAL
977
978 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
979 #define STRUCT_SPECIAL(name)
980 #include "syscall_types.h"
981 #undef STRUCT
982 #undef STRUCT_SPECIAL
983
984 typedef struct IOCTLEntry {
985 unsigned int target_cmd;
986 unsigned int host_cmd;
987 const char *name;
988 int access;
989 const argtype arg_type[5];
990 } IOCTLEntry;
991
992 #define IOC_R 0x0001
993 #define IOC_W 0x0002
994 #define IOC_RW (IOC_R | IOC_W)
995
996 #define MAX_STRUCT_SIZE 4096
997
998 IOCTLEntry ioctl_entries[] = {
999 #define IOCTL(cmd, access, types...) \
1000 { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1001 #include "ioctls.h"
1002 { 0, 0, },
1003 };
1004
1005 static long do_ioctl(long fd, long cmd, long arg)
1006 {
1007 const IOCTLEntry *ie;
1008 const argtype *arg_type;
1009 long ret;
1010 uint8_t buf_temp[MAX_STRUCT_SIZE];
1011
1012 ie = ioctl_entries;
1013 for(;;) {
1014 if (ie->target_cmd == 0) {
1015 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1016 return -ENOSYS;
1017 }
1018 if (ie->target_cmd == cmd)
1019 break;
1020 ie++;
1021 }
1022 arg_type = ie->arg_type;
1023 #if defined(DEBUG)
1024 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1025 #endif
1026 switch(arg_type[0]) {
1027 case TYPE_NULL:
1028 /* no argument */
1029 ret = get_errno(ioctl(fd, ie->host_cmd));
1030 break;
1031 case TYPE_PTRVOID:
1032 case TYPE_INT:
1033 /* int argment */
1034 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1035 break;
1036 case TYPE_PTR:
1037 arg_type++;
1038 switch(ie->access) {
1039 case IOC_R:
1040 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1041 if (!is_error(ret)) {
1042 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1043 }
1044 break;
1045 case IOC_W:
1046 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1047 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1048 break;
1049 default:
1050 case IOC_RW:
1051 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1052 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1053 if (!is_error(ret)) {
1054 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1055 }
1056 break;
1057 }
1058 break;
1059 default:
1060 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1061 ret = -ENOSYS;
1062 break;
1063 }
1064 return ret;
1065 }
1066
1067 bitmask_transtbl iflag_tbl[] = {
1068 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1069 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1070 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1071 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1072 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1073 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1074 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1075 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1076 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1077 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1078 { TARGET_IXON, TARGET_IXON, IXON, IXON },
1079 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1080 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1081 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1082 { 0, 0, 0, 0 }
1083 };
1084
1085 bitmask_transtbl oflag_tbl[] = {
1086 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1087 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1088 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1089 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1090 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1091 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1092 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1093 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1094 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1095 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1096 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1097 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1098 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1099 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1100 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1101 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1102 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1103 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1104 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1105 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1106 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1107 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1108 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1109 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1110 { 0, 0, 0, 0 }
1111 };
1112
1113 bitmask_transtbl cflag_tbl[] = {
1114 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1115 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1116 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1117 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1118 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1119 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1120 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1121 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1122 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1123 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1124 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1125 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1126 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1127 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1128 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1129 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1130 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1131 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1132 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1133 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1134 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1135 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1136 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1137 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1138 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1139 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1140 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1141 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1142 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1143 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1144 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1145 { 0, 0, 0, 0 }
1146 };
1147
1148 bitmask_transtbl lflag_tbl[] = {
1149 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1150 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1151 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1152 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1153 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1154 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1155 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1156 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1157 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1158 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1159 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1160 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1161 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1162 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1163 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1164 { 0, 0, 0, 0 }
1165 };
1166
1167 static void target_to_host_termios (void *dst, const void *src)
1168 {
1169 struct host_termios *host = dst;
1170 const struct target_termios *target = src;
1171
1172 host->c_iflag =
1173 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1174 host->c_oflag =
1175 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1176 host->c_cflag =
1177 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1178 host->c_lflag =
1179 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1180 host->c_line = target->c_line;
1181
1182 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1183 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1184 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1185 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1186 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1187 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1188 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1189 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1190 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1191 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1192 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1193 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1194 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1195 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1196 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1197 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1198 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1199 }
1200
1201 static void host_to_target_termios (void *dst, const void *src)
1202 {
1203 struct target_termios *target = dst;
1204 const struct host_termios *host = src;
1205
1206 target->c_iflag =
1207 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1208 target->c_oflag =
1209 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1210 target->c_cflag =
1211 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1212 target->c_lflag =
1213 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1214 target->c_line = host->c_line;
1215
1216 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1217 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1218 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1219 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1220 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1221 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1222 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1223 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1224 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1225 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1226 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1227 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1228 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1229 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1230 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1231 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1232 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1233 }
1234
1235 StructEntry struct_termios_def = {
1236 .convert = { host_to_target_termios, target_to_host_termios },
1237 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1238 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1239 };
1240
1241 static bitmask_transtbl mmap_flags_tbl[] = {
1242 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1243 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1244 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1245 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1246 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1247 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1248 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1249 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1250 { 0, 0, 0, 0 }
1251 };
1252
1253 static bitmask_transtbl fcntl_flags_tbl[] = {
1254 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
1255 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
1256 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
1257 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
1258 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
1259 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
1260 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
1261 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
1262 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
1263 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
1264 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1265 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
1266 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1267 #if defined(O_DIRECT)
1268 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
1269 #endif
1270 { 0, 0, 0, 0 }
1271 };
1272
1273 #if defined(TARGET_I386)
1274
1275 /* NOTE: there is really one LDT for all the threads */
1276 uint8_t *ldt_table;
1277
1278 static int read_ldt(void *ptr, unsigned long bytecount)
1279 {
1280 int size;
1281
1282 if (!ldt_table)
1283 return 0;
1284 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1285 if (size > bytecount)
1286 size = bytecount;
1287 memcpy(ptr, ldt_table, size);
1288 return size;
1289 }
1290
1291 /* XXX: add locking support */
1292 static int write_ldt(CPUX86State *env,
1293 void *ptr, unsigned long bytecount, int oldmode)
1294 {
1295 struct target_modify_ldt_ldt_s ldt_info;
1296 int seg_32bit, contents, read_exec_only, limit_in_pages;
1297 int seg_not_present, useable;
1298 uint32_t *lp, entry_1, entry_2;
1299
1300 if (bytecount != sizeof(ldt_info))
1301 return -EINVAL;
1302 memcpy(&ldt_info, ptr, sizeof(ldt_info));
1303 tswap32s(&ldt_info.entry_number);
1304 tswapls((long *)&ldt_info.base_addr);
1305 tswap32s(&ldt_info.limit);
1306 tswap32s(&ldt_info.flags);
1307
1308 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1309 return -EINVAL;
1310 seg_32bit = ldt_info.flags & 1;
1311 contents = (ldt_info.flags >> 1) & 3;
1312 read_exec_only = (ldt_info.flags >> 3) & 1;
1313 limit_in_pages = (ldt_info.flags >> 4) & 1;
1314 seg_not_present = (ldt_info.flags >> 5) & 1;
1315 useable = (ldt_info.flags >> 6) & 1;
1316
1317 if (contents == 3) {
1318 if (oldmode)
1319 return -EINVAL;
1320 if (seg_not_present == 0)
1321 return -EINVAL;
1322 }
1323 /* allocate the LDT */
1324 if (!ldt_table) {
1325 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1326 if (!ldt_table)
1327 return -ENOMEM;
1328 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1329 env->ldt.base = ldt_table;
1330 env->ldt.limit = 0xffff;
1331 }
1332
1333 /* NOTE: same code as Linux kernel */
1334 /* Allow LDTs to be cleared by the user. */
1335 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1336 if (oldmode ||
1337 (contents == 0 &&
1338 read_exec_only == 1 &&
1339 seg_32bit == 0 &&
1340 limit_in_pages == 0 &&
1341 seg_not_present == 1 &&
1342 useable == 0 )) {
1343 entry_1 = 0;
1344 entry_2 = 0;
1345 goto install;
1346 }
1347 }
1348
1349 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1350 (ldt_info.limit & 0x0ffff);
1351 entry_2 = (ldt_info.base_addr & 0xff000000) |
1352 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1353 (ldt_info.limit & 0xf0000) |
1354 ((read_exec_only ^ 1) << 9) |
1355 (contents << 10) |
1356 ((seg_not_present ^ 1) << 15) |
1357 (seg_32bit << 22) |
1358 (limit_in_pages << 23) |
1359 0x7000;
1360 if (!oldmode)
1361 entry_2 |= (useable << 20);
1362
1363 /* Install the new entry ... */
1364 install:
1365 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1366 lp[0] = tswap32(entry_1);
1367 lp[1] = tswap32(entry_2);
1368 return 0;
1369 }
1370
1371 /* specific and weird i386 syscalls */
1372 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1373 {
1374 int ret = -ENOSYS;
1375
1376 switch (func) {
1377 case 0:
1378 ret = read_ldt(ptr, bytecount);
1379 break;
1380 case 1:
1381 ret = write_ldt(env, ptr, bytecount, 1);
1382 break;
1383 case 0x11:
1384 ret = write_ldt(env, ptr, bytecount, 0);
1385 break;
1386 }
1387 return ret;
1388 }
1389
1390 #endif /* defined(TARGET_I386) */
1391
1392 /* this stack is the equivalent of the kernel stack associated with a
1393 thread/process */
1394 #define NEW_STACK_SIZE 8192
1395
1396 static int clone_func(void *arg)
1397 {
1398 CPUState *env = arg;
1399 cpu_loop(env);
1400 /* never exits */
1401 return 0;
1402 }
1403
1404 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1405 {
1406 int ret;
1407 TaskState *ts;
1408 uint8_t *new_stack;
1409 CPUState *new_env;
1410
1411 if (flags & CLONE_VM) {
1412 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1413 memset(ts, 0, sizeof(TaskState));
1414 new_stack = ts->stack;
1415 ts->used = 1;
1416 /* add in task state list */
1417 ts->next = first_task_state;
1418 first_task_state = ts;
1419 /* we create a new CPU instance. */
1420 new_env = cpu_init();
1421 memcpy(new_env, env, sizeof(CPUState));
1422 #if defined(TARGET_I386)
1423 if (!newsp)
1424 newsp = env->regs[R_ESP];
1425 new_env->regs[R_ESP] = newsp;
1426 new_env->regs[R_EAX] = 0;
1427 #elif defined(TARGET_ARM)
1428 if (!newsp)
1429 newsp = env->regs[13];
1430 new_env->regs[13] = newsp;
1431 new_env->regs[0] = 0;
1432 #elif defined(TARGET_SPARC)
1433 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1434 #elif defined(TARGET_PPC)
1435 if (!newsp)
1436 newsp = env->gpr[1];
1437 new_env->gpr[1] = newsp;
1438 {
1439 int i;
1440 for (i = 7; i < 32; i++)
1441 new_env->gpr[i] = 0;
1442 }
1443 #else
1444 #error unsupported target CPU
1445 #endif
1446 new_env->opaque = ts;
1447 #ifdef __ia64__
1448 ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1449 #else
1450 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1451 #endif
1452 } else {
1453 /* if no CLONE_VM, we consider it is a fork */
1454 if ((flags & ~CSIGNAL) != 0)
1455 return -EINVAL;
1456 ret = fork();
1457 }
1458 return ret;
1459 }
1460
1461 static long do_fcntl(int fd, int cmd, unsigned long arg)
1462 {
1463 struct flock fl;
1464 struct target_flock *target_fl = (void *)arg;
1465 long ret;
1466
1467 switch(cmd) {
1468 case TARGET_F_GETLK:
1469 ret = fcntl(fd, cmd, &fl);
1470 if (ret == 0) {
1471 target_fl->l_type = tswap16(fl.l_type);
1472 target_fl->l_whence = tswap16(fl.l_whence);
1473 target_fl->l_start = tswapl(fl.l_start);
1474 target_fl->l_len = tswapl(fl.l_len);
1475 target_fl->l_pid = tswapl(fl.l_pid);
1476 }
1477 break;
1478
1479 case TARGET_F_SETLK:
1480 case TARGET_F_SETLKW:
1481 fl.l_type = tswap16(target_fl->l_type);
1482 fl.l_whence = tswap16(target_fl->l_whence);
1483 fl.l_start = tswapl(target_fl->l_start);
1484 fl.l_len = tswapl(target_fl->l_len);
1485 fl.l_pid = tswapl(target_fl->l_pid);
1486 ret = fcntl(fd, cmd, &fl);
1487 break;
1488
1489 case TARGET_F_GETLK64:
1490 case TARGET_F_SETLK64:
1491 case TARGET_F_SETLKW64:
1492 ret = -1;
1493 errno = EINVAL;
1494 break;
1495
1496 case F_GETFL:
1497 ret = fcntl(fd, cmd, arg);
1498 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1499 break;
1500
1501 case F_SETFL:
1502 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1503 break;
1504
1505 default:
1506 ret = fcntl(fd, cmd, arg);
1507 break;
1508 }
1509 return ret;
1510 }
1511
1512 #ifdef USE_UID16
1513
1514 static inline int high2lowuid(int uid)
1515 {
1516 if (uid > 65535)
1517 return 65534;
1518 else
1519 return uid;
1520 }
1521
1522 static inline int high2lowgid(int gid)
1523 {
1524 if (gid > 65535)
1525 return 65534;
1526 else
1527 return gid;
1528 }
1529
1530 static inline int low2highuid(int uid)
1531 {
1532 if ((int16_t)uid == -1)
1533 return -1;
1534 else
1535 return uid;
1536 }
1537
1538 static inline int low2highgid(int gid)
1539 {
1540 if ((int16_t)gid == -1)
1541 return -1;
1542 else
1543 return gid;
1544 }
1545
1546 #endif /* USE_UID16 */
1547
1548 void syscall_init(void)
1549 {
1550 IOCTLEntry *ie;
1551 const argtype *arg_type;
1552 int size;
1553
1554 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1555 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1556 #include "syscall_types.h"
1557 #undef STRUCT
1558 #undef STRUCT_SPECIAL
1559
1560 /* we patch the ioctl size if necessary. We rely on the fact that
1561 no ioctl has all the bits at '1' in the size field */
1562 ie = ioctl_entries;
1563 while (ie->target_cmd != 0) {
1564 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1565 TARGET_IOC_SIZEMASK) {
1566 arg_type = ie->arg_type;
1567 if (arg_type[0] != TYPE_PTR) {
1568 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1569 ie->target_cmd);
1570 exit(1);
1571 }
1572 arg_type++;
1573 size = thunk_type_size(arg_type, 0);
1574 ie->target_cmd = (ie->target_cmd &
1575 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1576 (size << TARGET_IOC_SIZESHIFT);
1577 }
1578 /* automatic consistency check if same arch */
1579 #if defined(__i386__) && defined(TARGET_I386)
1580 if (ie->target_cmd != ie->host_cmd) {
1581 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1582 ie->target_cmd, ie->host_cmd);
1583 }
1584 #endif
1585 ie++;
1586 }
1587 }
1588
1589 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1590 long arg4, long arg5, long arg6)
1591 {
1592 long ret;
1593 struct stat st;
1594 struct kernel_statfs *stfs;
1595
1596 #ifdef DEBUG
1597 gemu_log("syscall %d", num);
1598 #endif
1599 switch(num) {
1600 case TARGET_NR_exit:
1601 #ifdef HAVE_GPROF
1602 _mcleanup();
1603 #endif
1604 /* XXX: should free thread stack and CPU env */
1605 _exit(arg1);
1606 ret = 0; /* avoid warning */
1607 break;
1608 case TARGET_NR_read:
1609 page_unprotect_range((void *)arg2, arg3);
1610 ret = get_errno(read(arg1, (void *)arg2, arg3));
1611 break;
1612 case TARGET_NR_write:
1613 ret = get_errno(write(arg1, (void *)arg2, arg3));
1614 break;
1615 case TARGET_NR_open:
1616 ret = get_errno(open(path((const char *)arg1),
1617 target_to_host_bitmask(arg2, fcntl_flags_tbl),
1618 arg3));
1619 break;
1620 case TARGET_NR_close:
1621 ret = get_errno(close(arg1));
1622 break;
1623 case TARGET_NR_brk:
1624 ret = do_brk((char *)arg1);
1625 break;
1626 case TARGET_NR_fork:
1627 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1628 break;
1629 case TARGET_NR_waitpid:
1630 {
1631 int *status = (int *)arg2;
1632 ret = get_errno(waitpid(arg1, status, arg3));
1633 if (!is_error(ret) && status)
1634 tswapls((long *)&status);
1635 }
1636 break;
1637 case TARGET_NR_creat:
1638 ret = get_errno(creat((const char *)arg1, arg2));
1639 break;
1640 case TARGET_NR_link:
1641 ret = get_errno(link((const char *)arg1, (const char *)arg2));
1642 break;
1643 case TARGET_NR_unlink:
1644 ret = get_errno(unlink((const char *)arg1));
1645 break;
1646 case TARGET_NR_execve:
1647 {
1648 char **argp, **envp;
1649 int argc, envc;
1650 uint32_t *p;
1651 char **q;
1652
1653 argc = 0;
1654 for (p = (void *)arg2; *p; p++)
1655 argc++;
1656 envc = 0;
1657 for (p = (void *)arg3; *p; p++)
1658 envc++;
1659
1660 argp = alloca((argc + 1) * sizeof(void *));
1661 envp = alloca((envc + 1) * sizeof(void *));
1662
1663 for (p = (void *)arg2, q = argp; *p; p++, q++)
1664 *q = (void *)tswap32(*p);
1665 *q = NULL;
1666
1667 for (p = (void *)arg3, q = envp; *p; p++, q++)
1668 *q = (void *)tswap32(*p);
1669 *q = NULL;
1670
1671 ret = get_errno(execve((const char *)arg1, argp, envp));
1672 }
1673 break;
1674 case TARGET_NR_chdir:
1675 ret = get_errno(chdir((const char *)arg1));
1676 break;
1677 case TARGET_NR_time:
1678 {
1679 int *time_ptr = (int *)arg1;
1680 ret = get_errno(time((time_t *)time_ptr));
1681 if (!is_error(ret) && time_ptr)
1682 tswap32s(time_ptr);
1683 }
1684 break;
1685 case TARGET_NR_mknod:
1686 ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1687 break;
1688 case TARGET_NR_chmod:
1689 ret = get_errno(chmod((const char *)arg1, arg2));
1690 break;
1691 #ifdef TARGET_NR_break
1692 case TARGET_NR_break:
1693 goto unimplemented;
1694 #endif
1695 #ifdef TARGET_NR_oldstat
1696 case TARGET_NR_oldstat:
1697 goto unimplemented;
1698 #endif
1699 case TARGET_NR_lseek:
1700 ret = get_errno(lseek(arg1, arg2, arg3));
1701 break;
1702 case TARGET_NR_getpid:
1703 ret = get_errno(getpid());
1704 break;
1705 case TARGET_NR_mount:
1706 /* need to look at the data field */
1707 goto unimplemented;
1708 case TARGET_NR_umount:
1709 ret = get_errno(umount((const char *)arg1));
1710 break;
1711 case TARGET_NR_stime:
1712 {
1713 int *time_ptr = (int *)arg1;
1714 if (time_ptr)
1715 tswap32s(time_ptr);
1716 ret = get_errno(stime((time_t *)time_ptr));
1717 }
1718 break;
1719 case TARGET_NR_ptrace:
1720 goto unimplemented;
1721 case TARGET_NR_alarm:
1722 ret = alarm(arg1);
1723 break;
1724 #ifdef TARGET_NR_oldfstat
1725 case TARGET_NR_oldfstat:
1726 goto unimplemented;
1727 #endif
1728 case TARGET_NR_pause:
1729 ret = get_errno(pause());
1730 break;
1731 case TARGET_NR_utime:
1732 {
1733 struct utimbuf tbuf, *tbuf1;
1734 struct target_utimbuf *target_tbuf = (void *)arg2;
1735 if (target_tbuf) {
1736 get_user(tbuf.actime, &target_tbuf->actime);
1737 get_user(tbuf.modtime, &target_tbuf->modtime);
1738 tbuf1 = &tbuf;
1739 } else {
1740 tbuf1 = NULL;
1741 }
1742 ret = get_errno(utime((const char *)arg1, tbuf1));
1743 }
1744 break;
1745 #ifdef TARGET_NR_stty
1746 case TARGET_NR_stty:
1747 goto unimplemented;
1748 #endif
1749 #ifdef TARGET_NR_gtty
1750 case TARGET_NR_gtty:
1751 goto unimplemented;
1752 #endif
1753 case TARGET_NR_access:
1754 ret = get_errno(access((const char *)arg1, arg2));
1755 break;
1756 case TARGET_NR_nice:
1757 ret = get_errno(nice(arg1));
1758 break;
1759 #ifdef TARGET_NR_ftime
1760 case TARGET_NR_ftime:
1761 goto unimplemented;
1762 #endif
1763 case TARGET_NR_sync:
1764 sync();
1765 ret = 0;
1766 break;
1767 case TARGET_NR_kill:
1768 ret = get_errno(kill(arg1, arg2));
1769 break;
1770 case TARGET_NR_rename:
1771 ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1772 break;
1773 case TARGET_NR_mkdir:
1774 ret = get_errno(mkdir((const char *)arg1, arg2));
1775 break;
1776 case TARGET_NR_rmdir:
1777 ret = get_errno(rmdir((const char *)arg1));
1778 break;
1779 case TARGET_NR_dup:
1780 ret = get_errno(dup(arg1));
1781 break;
1782 case TARGET_NR_pipe:
1783 {
1784 int *pipe_ptr = (int *)arg1;
1785 ret = get_errno(pipe(pipe_ptr));
1786 if (!is_error(ret)) {
1787 tswap32s(&pipe_ptr[0]);
1788 tswap32s(&pipe_ptr[1]);
1789 }
1790 }
1791 break;
1792 case TARGET_NR_times:
1793 {
1794 struct target_tms *tmsp = (void *)arg1;
1795 struct tms tms;
1796 ret = get_errno(times(&tms));
1797 if (tmsp) {
1798 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1799 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1800 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1801 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1802 }
1803 if (!is_error(ret))
1804 ret = host_to_target_clock_t(ret);
1805 }
1806 break;
1807 #ifdef TARGET_NR_prof
1808 case TARGET_NR_prof:
1809 goto unimplemented;
1810 #endif
1811 case TARGET_NR_signal:
1812 goto unimplemented;
1813
1814 case TARGET_NR_acct:
1815 goto unimplemented;
1816 case TARGET_NR_umount2:
1817 ret = get_errno(umount2((const char *)arg1, arg2));
1818 break;
1819 #ifdef TARGET_NR_lock
1820 case TARGET_NR_lock:
1821 goto unimplemented;
1822 #endif
1823 case TARGET_NR_ioctl:
1824 ret = do_ioctl(arg1, arg2, arg3);
1825 break;
1826 case TARGET_NR_fcntl:
1827 ret = get_errno(do_fcntl(arg1, arg2, arg3));
1828 break;
1829 #ifdef TARGET_NR_mpx
1830 case TARGET_NR_mpx:
1831 goto unimplemented;
1832 #endif
1833 case TARGET_NR_setpgid:
1834 ret = get_errno(setpgid(arg1, arg2));
1835 break;
1836 #ifdef TARGET_NR_ulimit
1837 case TARGET_NR_ulimit:
1838 goto unimplemented;
1839 #endif
1840 #ifdef TARGET_NR_oldolduname
1841 case TARGET_NR_oldolduname:
1842 goto unimplemented;
1843 #endif
1844 case TARGET_NR_umask:
1845 ret = get_errno(umask(arg1));
1846 break;
1847 case TARGET_NR_chroot:
1848 ret = get_errno(chroot((const char *)arg1));
1849 break;
1850 case TARGET_NR_ustat:
1851 goto unimplemented;
1852 case TARGET_NR_dup2:
1853 ret = get_errno(dup2(arg1, arg2));
1854 break;
1855 case TARGET_NR_getppid:
1856 ret = get_errno(getppid());
1857 break;
1858 case TARGET_NR_getpgrp:
1859 ret = get_errno(getpgrp());
1860 break;
1861 case TARGET_NR_setsid:
1862 ret = get_errno(setsid());
1863 break;
1864 case TARGET_NR_sigaction:
1865 {
1866 struct target_old_sigaction *old_act = (void *)arg2;
1867 struct target_old_sigaction *old_oact = (void *)arg3;
1868 struct target_sigaction act, oact, *pact;
1869 if (old_act) {
1870 act._sa_handler = old_act->_sa_handler;
1871 target_siginitset(&act.sa_mask, old_act->sa_mask);
1872 act.sa_flags = old_act->sa_flags;
1873 act.sa_restorer = old_act->sa_restorer;
1874 pact = &act;
1875 } else {
1876 pact = NULL;
1877 }
1878 ret = get_errno(do_sigaction(arg1, pact, &oact));
1879 if (!is_error(ret) && old_oact) {
1880 old_oact->_sa_handler = oact._sa_handler;
1881 old_oact->sa_mask = oact.sa_mask.sig[0];
1882 old_oact->sa_flags = oact.sa_flags;
1883 old_oact->sa_restorer = oact.sa_restorer;
1884 }
1885 }
1886 break;
1887 case TARGET_NR_rt_sigaction:
1888 ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1889 break;
1890 case TARGET_NR_sgetmask:
1891 {
1892 sigset_t cur_set;
1893 target_ulong target_set;
1894 sigprocmask(0, NULL, &cur_set);
1895 host_to_target_old_sigset(&target_set, &cur_set);
1896 ret = target_set;
1897 }
1898 break;
1899 case TARGET_NR_ssetmask:
1900 {
1901 sigset_t set, oset, cur_set;
1902 target_ulong target_set = arg1;
1903 sigprocmask(0, NULL, &cur_set);
1904 target_to_host_old_sigset(&set, &target_set);
1905 sigorset(&set, &set, &cur_set);
1906 sigprocmask(SIG_SETMASK, &set, &oset);
1907 host_to_target_old_sigset(&target_set, &oset);
1908 ret = target_set;
1909 }
1910 break;
1911 case TARGET_NR_sigprocmask:
1912 {
1913 int how = arg1;
1914 sigset_t set, oldset, *set_ptr;
1915 target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1916
1917 if (pset) {
1918 switch(how) {
1919 case TARGET_SIG_BLOCK:
1920 how = SIG_BLOCK;
1921 break;
1922 case TARGET_SIG_UNBLOCK:
1923 how = SIG_UNBLOCK;
1924 break;
1925 case TARGET_SIG_SETMASK:
1926 how = SIG_SETMASK;
1927 break;
1928 default:
1929 ret = -EINVAL;
1930 goto fail;
1931 }
1932 target_to_host_old_sigset(&set, pset);
1933 set_ptr = &set;
1934 } else {
1935 how = 0;
1936 set_ptr = NULL;
1937 }
1938 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1939 if (!is_error(ret) && poldset) {
1940 host_to_target_old_sigset(poldset, &oldset);
1941 }
1942 }
1943 break;
1944 case TARGET_NR_rt_sigprocmask:
1945 {
1946 int how = arg1;
1947 sigset_t set, oldset, *set_ptr;
1948 target_sigset_t *pset = (void *)arg2;
1949 target_sigset_t *poldset = (void *)arg3;
1950
1951 if (pset) {
1952 switch(how) {
1953 case TARGET_SIG_BLOCK:
1954 how = SIG_BLOCK;
1955 break;
1956 case TARGET_SIG_UNBLOCK:
1957 how = SIG_UNBLOCK;
1958 break;
1959 case TARGET_SIG_SETMASK:
1960 how = SIG_SETMASK;
1961 break;
1962 default:
1963 ret = -EINVAL;
1964 goto fail;
1965 }
1966 target_to_host_sigset(&set, pset);
1967 set_ptr = &set;
1968 } else {
1969 how = 0;
1970 set_ptr = NULL;
1971 }
1972 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1973 if (!is_error(ret) && poldset) {
1974 host_to_target_sigset(poldset, &oldset);
1975 }
1976 }
1977 break;
1978 case TARGET_NR_sigpending:
1979 {
1980 sigset_t set;
1981 ret = get_errno(sigpending(&set));
1982 if (!is_error(ret)) {
1983 host_to_target_old_sigset((target_ulong *)arg1, &set);
1984 }
1985 }
1986 break;
1987 case TARGET_NR_rt_sigpending:
1988 {
1989 sigset_t set;
1990 ret = get_errno(sigpending(&set));
1991 if (!is_error(ret)) {
1992 host_to_target_sigset((target_sigset_t *)arg1, &set);
1993 }
1994 }
1995 break;
1996 case TARGET_NR_sigsuspend:
1997 {
1998 sigset_t set;
1999 target_to_host_old_sigset(&set, (target_ulong *)arg1);
2000 ret = get_errno(sigsuspend(&set));
2001 }
2002 break;
2003 case TARGET_NR_rt_sigsuspend:
2004 {
2005 sigset_t set;
2006 target_to_host_sigset(&set, (target_sigset_t *)arg1);
2007 ret = get_errno(sigsuspend(&set));
2008 }
2009 break;
2010 case TARGET_NR_rt_sigtimedwait:
2011 {
2012 target_sigset_t *target_set = (void *)arg1;
2013 target_siginfo_t *target_uinfo = (void *)arg2;
2014 struct target_timespec *target_uts = (void *)arg3;
2015 sigset_t set;
2016 struct timespec uts, *puts;
2017 siginfo_t uinfo;
2018
2019 target_to_host_sigset(&set, target_set);
2020 if (target_uts) {
2021 puts = &uts;
2022 puts->tv_sec = tswapl(target_uts->tv_sec);
2023 puts->tv_nsec = tswapl(target_uts->tv_nsec);
2024 } else {
2025 puts = NULL;
2026 }
2027 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2028 if (!is_error(ret) && target_uinfo) {
2029 host_to_target_siginfo(target_uinfo, &uinfo);
2030 }
2031 }
2032 break;
2033 case TARGET_NR_rt_sigqueueinfo:
2034 {
2035 siginfo_t uinfo;
2036 target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
2037 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2038 }
2039 break;
2040 case TARGET_NR_sigreturn:
2041 /* NOTE: ret is eax, so not transcoding must be done */
2042 ret = do_sigreturn(cpu_env);
2043 break;
2044 case TARGET_NR_rt_sigreturn:
2045 /* NOTE: ret is eax, so not transcoding must be done */
2046 ret = do_rt_sigreturn(cpu_env);
2047 break;
2048 case TARGET_NR_sethostname:
2049 ret = get_errno(sethostname((const char *)arg1, arg2));
2050 break;
2051 case TARGET_NR_setrlimit:
2052 {
2053 /* XXX: convert resource ? */
2054 int resource = arg1;
2055 struct target_rlimit *target_rlim = (void *)arg2;
2056 struct rlimit rlim;
2057 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2058 rlim.rlim_max = tswapl(target_rlim->rlim_max);
2059 ret = get_errno(setrlimit(resource, &rlim));
2060 }
2061 break;
2062 case TARGET_NR_getrlimit:
2063 {
2064 /* XXX: convert resource ? */
2065 int resource = arg1;
2066 struct target_rlimit *target_rlim = (void *)arg2;
2067 struct rlimit rlim;
2068
2069 ret = get_errno(getrlimit(resource, &rlim));
2070 if (!is_error(ret)) {
2071 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2072 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2073 }
2074 }
2075 break;
2076 case TARGET_NR_getrusage:
2077 {
2078 struct rusage rusage;
2079 struct target_rusage *target_rusage = (void *)arg2;
2080 ret = get_errno(getrusage(arg1, &rusage));
2081 if (!is_error(ret)) {
2082 host_to_target_rusage(target_rusage, &rusage);
2083 }
2084 }
2085 break;
2086 case TARGET_NR_gettimeofday:
2087 {
2088 struct target_timeval *target_tv = (void *)arg1;
2089 struct timeval tv;
2090 ret = get_errno(gettimeofday(&tv, NULL));
2091 if (!is_error(ret)) {
2092 host_to_target_timeval(target_tv, &tv);
2093 }
2094 }
2095 break;
2096 case TARGET_NR_settimeofday:
2097 {
2098 struct target_timeval *target_tv = (void *)arg1;
2099 struct timeval tv;
2100 target_to_host_timeval(&tv, target_tv);
2101 ret = get_errno(settimeofday(&tv, NULL));
2102 }
2103 break;
2104 case TARGET_NR_select:
2105 {
2106 struct target_sel_arg_struct *sel = (void *)arg1;
2107 sel->n = tswapl(sel->n);
2108 sel->inp = tswapl(sel->inp);
2109 sel->outp = tswapl(sel->outp);
2110 sel->exp = tswapl(sel->exp);
2111 sel->tvp = tswapl(sel->tvp);
2112 ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
2113 (void *)sel->exp, (void *)sel->tvp);
2114 }
2115 break;
2116 case TARGET_NR_symlink:
2117 ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
2118 break;
2119 #ifdef TARGET_NR_oldlstat
2120 case TARGET_NR_oldlstat:
2121 goto unimplemented;
2122 #endif
2123 case TARGET_NR_readlink:
2124 ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
2125 break;
2126 case TARGET_NR_uselib:
2127 goto unimplemented;
2128 case TARGET_NR_swapon:
2129 ret = get_errno(swapon((const char *)arg1, arg2));
2130 break;
2131 case TARGET_NR_reboot:
2132 goto unimplemented;
2133 case TARGET_NR_readdir:
2134 goto unimplemented;
2135 case TARGET_NR_mmap:
2136 #if defined(TARGET_I386) || defined(TARGET_ARM)
2137 {
2138 uint32_t v1, v2, v3, v4, v5, v6, *vptr;
2139 vptr = (uint32_t *)arg1;
2140 v1 = tswap32(vptr[0]);
2141 v2 = tswap32(vptr[1]);
2142 v3 = tswap32(vptr[2]);
2143 v4 = tswap32(vptr[3]);
2144 v5 = tswap32(vptr[4]);
2145 v6 = tswap32(vptr[5]);
2146 ret = get_errno(target_mmap(v1, v2, v3,
2147 target_to_host_bitmask(v4, mmap_flags_tbl),
2148 v5, v6));
2149 }
2150 #else
2151 ret = get_errno(target_mmap(arg1, arg2, arg3,
2152 target_to_host_bitmask(arg4, mmap_flags_tbl),
2153 arg5,
2154 arg6));
2155 #endif
2156 break;
2157 case TARGET_NR_mmap2:
2158 #if defined(TARGET_SPARC)
2159 #define MMAP_SHIFT 12
2160 #else
2161 #define MMAP_SHIFT TARGET_PAGE_BITS
2162 #endif
2163 ret = get_errno(target_mmap(arg1, arg2, arg3,
2164 target_to_host_bitmask(arg4, mmap_flags_tbl),
2165 arg5,
2166 arg6 << MMAP_SHIFT));
2167 break;
2168 case TARGET_NR_munmap:
2169 ret = get_errno(target_munmap(arg1, arg2));
2170 break;
2171 case TARGET_NR_mprotect:
2172 ret = get_errno(target_mprotect(arg1, arg2, arg3));
2173 break;
2174 case TARGET_NR_mremap:
2175 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2176 break;
2177 case TARGET_NR_msync:
2178 ret = get_errno(msync((void *)arg1, arg2, arg3));
2179 break;
2180 case TARGET_NR_mlock:
2181 ret = get_errno(mlock((void *)arg1, arg2));
2182 break;
2183 case TARGET_NR_munlock:
2184 ret = get_errno(munlock((void *)arg1, arg2));
2185 break;
2186 case TARGET_NR_mlockall:
2187 ret = get_errno(mlockall(arg1));
2188 break;
2189 case TARGET_NR_munlockall:
2190 ret = get_errno(munlockall());
2191 break;
2192 case TARGET_NR_truncate:
2193 ret = get_errno(truncate((const char *)arg1, arg2));
2194 break;
2195 case TARGET_NR_ftruncate:
2196 ret = get_errno(ftruncate(arg1, arg2));
2197 break;
2198 case TARGET_NR_fchmod:
2199 ret = get_errno(fchmod(arg1, arg2));
2200 break;
2201 case TARGET_NR_getpriority:
2202 ret = get_errno(getpriority(arg1, arg2));
2203 break;
2204 case TARGET_NR_setpriority:
2205 ret = get_errno(setpriority(arg1, arg2, arg3));
2206 break;
2207 #ifdef TARGET_NR_profil
2208 case TARGET_NR_profil:
2209 goto unimplemented;
2210 #endif
2211 case TARGET_NR_statfs:
2212 stfs = (void *)arg2;
2213 ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2214 convert_statfs:
2215 if (!is_error(ret)) {
2216 tswap32s(&stfs->f_type);
2217 tswap32s(&stfs->f_bsize);
2218 tswap32s(&stfs->f_blocks);
2219 tswap32s(&stfs->f_bfree);
2220 tswap32s(&stfs->f_bavail);
2221 tswap32s(&stfs->f_files);
2222 tswap32s(&stfs->f_ffree);
2223 tswap32s(&stfs->f_fsid.val[0]);
2224 tswap32s(&stfs->f_fsid.val[1]);
2225 tswap32s(&stfs->f_namelen);
2226 }
2227 break;
2228 case TARGET_NR_fstatfs:
2229 stfs = (void *)arg2;
2230 ret = get_errno(sys_fstatfs(arg1, stfs));
2231 goto convert_statfs;
2232 #ifdef TARGET_NR_ioperm
2233 case TARGET_NR_ioperm:
2234 goto unimplemented;
2235 #endif
2236 case TARGET_NR_socketcall:
2237 ret = do_socketcall(arg1, (int32_t *)arg2);
2238 break;
2239 case TARGET_NR_syslog:
2240 goto unimplemented;
2241 case TARGET_NR_setitimer:
2242 {
2243 struct target_itimerval *target_value = (void *)arg2;
2244 struct target_itimerval *target_ovalue = (void *)arg3;
2245 struct itimerval value, ovalue, *pvalue;
2246
2247 if (target_value) {
2248 pvalue = &value;
2249 target_to_host_timeval(&pvalue->it_interval,
2250 &target_value->it_interval);
2251 target_to_host_timeval(&pvalue->it_value,
2252 &target_value->it_value);
2253 } else {
2254 pvalue = NULL;
2255 }
2256 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2257 if (!is_error(ret) && target_ovalue) {
2258 host_to_target_timeval(&target_ovalue->it_interval,
2259 &ovalue.it_interval);
2260 host_to_target_timeval(&target_ovalue->it_value,
2261 &ovalue.it_value);
2262 }
2263 }
2264 break;
2265 case TARGET_NR_getitimer:
2266 {
2267 struct target_itimerval *target_value = (void *)arg2;
2268 struct itimerval value;
2269
2270 ret = get_errno(getitimer(arg1, &value));
2271 if (!is_error(ret) && target_value) {
2272 host_to_target_timeval(&target_value->it_interval,
2273 &value.it_interval);
2274 host_to_target_timeval(&target_value->it_value,
2275 &value.it_value);
2276 }
2277 }
2278 break;
2279 case TARGET_NR_stat:
2280 ret = get_errno(stat(path((const char *)arg1), &st));
2281 goto do_stat;
2282 case TARGET_NR_lstat:
2283 ret = get_errno(lstat(path((const char *)arg1), &st));
2284 goto do_stat;
2285 case TARGET_NR_fstat:
2286 {
2287 ret = get_errno(fstat(arg1, &st));
2288 do_stat:
2289 if (!is_error(ret)) {
2290 struct target_stat *target_st = (void *)arg2;
2291 target_st->st_dev = tswap16(st.st_dev);
2292 target_st->st_ino = tswapl(st.st_ino);
2293 #if defined(TARGET_PPC)
2294 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2295 target_st->st_uid = tswap32(st.st_uid);
2296 target_st->st_gid = tswap32(st.st_gid);
2297 #else
2298 target_st->st_mode = tswap16(st.st_mode);
2299 target_st->st_uid = tswap16(st.st_uid);
2300 target_st->st_gid = tswap16(st.st_gid);
2301 #endif
2302 target_st->st_nlink = tswap16(st.st_nlink);
2303 target_st->st_rdev = tswap16(st.st_rdev);
2304 target_st->st_size = tswapl(st.st_size);
2305 target_st->st_blksize = tswapl(st.st_blksize);
2306 target_st->st_blocks = tswapl(st.st_blocks);
2307 target_st->target_st_atime = tswapl(st.st_atime);
2308 target_st->target_st_mtime = tswapl(st.st_mtime);
2309 target_st->target_st_ctime = tswapl(st.st_ctime);
2310 }
2311 }
2312 break;
2313 #ifdef TARGET_NR_olduname
2314 case TARGET_NR_olduname:
2315 goto unimplemented;
2316 #endif
2317 #ifdef TARGET_NR_iopl
2318 case TARGET_NR_iopl:
2319 goto unimplemented;
2320 #endif
2321 case TARGET_NR_vhangup:
2322 ret = get_errno(vhangup());
2323 break;
2324 #ifdef TARGET_NR_idle
2325 case TARGET_NR_idle:
2326 goto unimplemented;
2327 #endif
2328 case TARGET_NR_wait4:
2329 {
2330 int status;
2331 target_long *status_ptr = (void *)arg2;
2332 struct rusage rusage, *rusage_ptr;
2333 struct target_rusage *target_rusage = (void *)arg4;
2334 if (target_rusage)
2335 rusage_ptr = &rusage;
2336 else
2337 rusage_ptr = NULL;
2338 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2339 if (!is_error(ret)) {
2340 if (status_ptr)
2341 *status_ptr = tswap32(status);
2342 if (target_rusage) {
2343 host_to_target_rusage(target_rusage, &rusage);
2344 }
2345 }
2346 }
2347 break;
2348 case TARGET_NR_swapoff:
2349 ret = get_errno(swapoff((const char *)arg1));
2350 break;
2351 case TARGET_NR_sysinfo:
2352 {
2353 struct target_sysinfo *target_value = (void *)arg1;
2354 struct sysinfo value;
2355 ret = get_errno(sysinfo(&value));
2356 if (!is_error(ret) && target_value)
2357 {
2358 __put_user(value.uptime, &target_value->uptime);
2359 __put_user(value.loads[0], &target_value->loads[0]);
2360 __put_user(value.loads[1], &target_value->loads[1]);
2361 __put_user(value.loads[2], &target_value->loads[2]);
2362 __put_user(value.totalram, &target_value->totalram);
2363 __put_user(value.freeram, &target_value->freeram);
2364 __put_user(value.sharedram, &target_value->sharedram);
2365 __put_user(value.bufferram, &target_value->bufferram);
2366 __put_user(value.totalswap, &target_value->totalswap);
2367 __put_user(value.freeswap, &target_value->freeswap);
2368 __put_user(value.procs, &target_value->procs);
2369 __put_user(value.totalhigh, &target_value->totalhigh);
2370 __put_user(value.freehigh, &target_value->freehigh);
2371 __put_user(value.mem_unit, &target_value->mem_unit);
2372 }
2373 }
2374 break;
2375 case TARGET_NR_ipc:
2376 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2377 break;
2378 case TARGET_NR_fsync:
2379 ret = get_errno(fsync(arg1));
2380 break;
2381 case TARGET_NR_clone:
2382 ret = get_errno(do_fork(cpu_env, arg1, arg2));
2383 break;
2384 #ifdef __NR_exit_group
2385 /* new thread calls */
2386 case TARGET_NR_exit_group:
2387 ret = get_errno(exit_group(arg1));
2388 break;
2389 #endif
2390 case TARGET_NR_setdomainname:
2391 ret = get_errno(setdomainname((const char *)arg1, arg2));
2392 break;
2393 case TARGET_NR_uname:
2394 /* no need to transcode because we use the linux syscall */
2395 {
2396 struct new_utsname * buf;
2397
2398 buf = (struct new_utsname *)arg1;
2399 ret = get_errno(sys_uname(buf));
2400 if (!is_error(ret)) {
2401 /* Overrite the native machine name with whatever is being
2402 emulated. */
2403 strcpy (buf->machine, UNAME_MACHINE);
2404 }
2405 }
2406 ret = get_errno(sys_uname((struct new_utsname *)arg1));
2407 break;
2408 #ifdef TARGET_I386
2409 case TARGET_NR_modify_ldt:
2410 ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2411 break;
2412 case TARGET_NR_vm86old:
2413 goto unimplemented;
2414 case TARGET_NR_vm86:
2415 ret = do_vm86(cpu_env, arg1, (void *)arg2);
2416 break;
2417 #endif
2418 case TARGET_NR_adjtimex:
2419 goto unimplemented;
2420 case TARGET_NR_create_module:
2421 case TARGET_NR_init_module:
2422 case TARGET_NR_delete_module:
2423 case TARGET_NR_get_kernel_syms:
2424 goto unimplemented;
2425 case TARGET_NR_quotactl:
2426 goto unimplemented;
2427 case TARGET_NR_getpgid:
2428 ret = get_errno(getpgid(arg1));
2429 break;
2430 case TARGET_NR_fchdir:
2431 ret = get_errno(fchdir(arg1));
2432 break;
2433 case TARGET_NR_bdflush:
2434 goto unimplemented;
2435 case TARGET_NR_sysfs:
2436 goto unimplemented;
2437 case TARGET_NR_personality:
2438 ret = get_errno(personality(arg1));
2439 break;
2440 case TARGET_NR_afs_syscall:
2441 goto unimplemented;
2442 case TARGET_NR__llseek:
2443 {
2444 #if defined (__x86_64__)
2445 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2446 *(int64_t *)arg4 = ret;
2447 #else
2448 int64_t res;
2449 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2450 *(int64_t *)arg4 = tswap64(res);
2451 #endif
2452 }
2453 break;
2454 case TARGET_NR_getdents:
2455 #if TARGET_LONG_SIZE != 4
2456 #error not supported
2457 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2458 {
2459 struct target_dirent *target_dirp = (void *)arg2;
2460 struct dirent *dirp;
2461 long count = arg3;
2462
2463 dirp = malloc(count);
2464 if (!dirp)
2465 return -ENOMEM;
2466
2467 ret = get_errno(sys_getdents(arg1, dirp, count));
2468 if (!is_error(ret)) {
2469 struct dirent *de;
2470 struct target_dirent *tde;
2471 int len = ret;
2472 int reclen, treclen;
2473 int count1, tnamelen;
2474
2475 count1 = 0;
2476 de = dirp;
2477 tde = target_dirp;
2478 while (len > 0) {
2479 reclen = de->d_reclen;
2480 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2481 tde->d_reclen = tswap16(treclen);
2482 tde->d_ino = tswapl(de->d_ino);
2483 tde->d_off = tswapl(de->d_off);
2484 tnamelen = treclen - (2 * sizeof(target_long) + 2);
2485 if (tnamelen > 256)
2486 tnamelen = 256;
2487 strncpy(tde->d_name, de->d_name, tnamelen);
2488 de = (struct dirent *)((char *)de + reclen);
2489 len -= reclen;
2490 tde = (struct dirent *)((char *)tde + treclen);
2491 count1 += treclen;
2492 }
2493 ret = count1;
2494 }
2495 free(dirp);
2496 }
2497 #else
2498 {
2499 struct dirent *dirp = (void *)arg2;
2500 long count = arg3;
2501
2502 ret = get_errno(sys_getdents(arg1, dirp, count));
2503 if (!is_error(ret)) {
2504 struct dirent *de;
2505 int len = ret;
2506 int reclen;
2507 de = dirp;
2508 while (len > 0) {
2509 reclen = de->d_reclen;
2510 if (reclen > len)
2511 break;
2512 de->d_reclen = tswap16(reclen);
2513 tswapls(&de->d_ino);
2514 tswapls(&de->d_off);
2515 de = (struct dirent *)((char *)de + reclen);
2516 len -= reclen;
2517 }
2518 }
2519 }
2520 #endif
2521 break;
2522 #ifdef TARGET_NR_getdents64
2523 case TARGET_NR_getdents64:
2524 {
2525 struct dirent64 *dirp = (void *)arg2;
2526 long count = arg3;
2527 ret = get_errno(sys_getdents64(arg1, dirp, count));
2528 if (!is_error(ret)) {
2529 struct dirent64 *de;
2530 int len = ret;
2531 int reclen;
2532 de = dirp;
2533 while (len > 0) {
2534 reclen = de->d_reclen;
2535 if (reclen > len)
2536 break;
2537 de->d_reclen = tswap16(reclen);
2538 tswap64s(&de->d_ino);
2539 tswap64s(&de->d_off);
2540 de = (struct dirent64 *)((char *)de + reclen);
2541 len -= reclen;
2542 }
2543 }
2544 }
2545 break;
2546 #endif /* TARGET_NR_getdents64 */
2547 case TARGET_NR__newselect:
2548 ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2549 (void *)arg5);
2550 break;
2551 case TARGET_NR_poll:
2552 {
2553 struct target_pollfd *target_pfd = (void *)arg1;
2554 unsigned int nfds = arg2;
2555 int timeout = arg3;
2556 struct pollfd *pfd;
2557 unsigned int i;
2558
2559 pfd = alloca(sizeof(struct pollfd) * nfds);
2560 for(i = 0; i < nfds; i++) {
2561 pfd[i].fd = tswap32(target_pfd[i].fd);
2562 pfd[i].events = tswap16(target_pfd[i].events);
2563 }
2564 ret = get_errno(poll(pfd, nfds, timeout));
2565 if (!is_error(ret)) {
2566 for(i = 0; i < nfds; i++) {
2567 target_pfd[i].revents = tswap16(pfd[i].revents);
2568 }
2569 }
2570 }
2571 break;
2572 case TARGET_NR_flock:
2573 /* NOTE: the flock constant seems to be the same for every
2574 Linux platform */
2575 ret = get_errno(flock(arg1, arg2));
2576 break;
2577 case TARGET_NR_readv:
2578 {
2579 int count = arg3;
2580 int i;
2581 struct iovec *vec;
2582 struct target_iovec *target_vec = (void *)arg2;
2583
2584 vec = alloca(count * sizeof(struct iovec));
2585 for(i = 0;i < count; i++) {
2586 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2587 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2588 }
2589 ret = get_errno(readv(arg1, vec, count));
2590 }
2591 break;
2592 case TARGET_NR_writev:
2593 {
2594 int count = arg3;
2595 int i;
2596 struct iovec *vec;
2597 struct target_iovec *target_vec = (void *)arg2;
2598
2599 vec = alloca(count * sizeof(struct iovec));
2600 for(i = 0;i < count; i++) {
2601 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2602 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2603 }
2604 ret = get_errno(writev(arg1, vec, count));
2605 }
2606 break;
2607 case TARGET_NR_getsid:
2608 ret = get_errno(getsid(arg1));
2609 break;
2610 case TARGET_NR_fdatasync:
2611 ret = get_errno(fdatasync(arg1));
2612 break;
2613 case TARGET_NR__sysctl:
2614 /* We don't implement this, but ENODIR is always a safe
2615 return value. */
2616 return -ENOTDIR;
2617 case TARGET_NR_sched_setparam:
2618 {
2619 struct sched_param *target_schp = (void *)arg2;
2620 struct sched_param schp;
2621 schp.sched_priority = tswap32(target_schp->sched_priority);
2622 ret = get_errno(sched_setparam(arg1, &schp));
2623 }
2624 break;
2625 case TARGET_NR_sched_getparam:
2626 {
2627 struct sched_param *target_schp = (void *)arg2;
2628 struct sched_param schp;
2629 ret = get_errno(sched_getparam(arg1, &schp));
2630 if (!is_error(ret)) {
2631 target_schp->sched_priority = tswap32(schp.sched_priority);
2632 }
2633 }
2634 break;
2635 case TARGET_NR_sched_setscheduler:
2636 {
2637 struct sched_param *target_schp = (void *)arg3;
2638 struct sched_param schp;
2639 schp.sched_priority = tswap32(target_schp->sched_priority);
2640 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2641 }
2642 break;
2643 case TARGET_NR_sched_getscheduler:
2644 ret = get_errno(sched_getscheduler(arg1));
2645 break;
2646 case TARGET_NR_sched_yield:
2647 ret = get_errno(sched_yield());
2648 break;
2649 case TARGET_NR_sched_get_priority_max:
2650 ret = get_errno(sched_get_priority_max(arg1));
2651 break;
2652 case TARGET_NR_sched_get_priority_min:
2653 ret = get_errno(sched_get_priority_min(arg1));
2654 break;
2655 case TARGET_NR_sched_rr_get_interval:
2656 {
2657 struct target_timespec *target_ts = (void *)arg2;
2658 struct timespec ts;
2659 ret = get_errno(sched_rr_get_interval(arg1, &ts));
2660 if (!is_error(ret)) {
2661 target_ts->tv_sec = tswapl(ts.tv_sec);
2662 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2663 }
2664 }
2665 break;
2666 case TARGET_NR_nanosleep:
2667 {
2668 struct target_timespec *target_req = (void *)arg1;
2669 struct target_timespec *target_rem = (void *)arg2;
2670 struct timespec req, rem;
2671 req.tv_sec = tswapl(target_req->tv_sec);
2672 req.tv_nsec = tswapl(target_req->tv_nsec);
2673 ret = get_errno(nanosleep(&req, &rem));
2674 if (is_error(ret) && target_rem) {
2675 target_rem->tv_sec = tswapl(rem.tv_sec);
2676 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2677 }
2678 }
2679 break;
2680 case TARGET_NR_query_module:
2681 goto unimplemented;
2682 case TARGET_NR_nfsservctl:
2683 goto unimplemented;
2684 case TARGET_NR_prctl:
2685 goto unimplemented;
2686 #ifdef TARGET_NR_pread
2687 case TARGET_NR_pread:
2688 page_unprotect_range((void *)arg2, arg3);
2689 ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2690 break;
2691 case TARGET_NR_pwrite:
2692 ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2693 break;
2694 #endif
2695 case TARGET_NR_getcwd:
2696 ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2697 break;
2698 case TARGET_NR_capget:
2699 goto unimplemented;
2700 case TARGET_NR_capset:
2701 goto unimplemented;
2702 case TARGET_NR_sigaltstack:
2703 goto unimplemented;
2704 case TARGET_NR_sendfile:
2705 goto unimplemented;
2706 #ifdef TARGET_NR_getpmsg
2707 case TARGET_NR_getpmsg:
2708 goto unimplemented;
2709 #endif
2710 #ifdef TARGET_NR_putpmsg
2711 case TARGET_NR_putpmsg:
2712 goto unimplemented;
2713 #endif
2714 case TARGET_NR_vfork:
2715 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2716 break;
2717 #ifdef TARGET_NR_ugetrlimit
2718 case TARGET_NR_ugetrlimit:
2719 {
2720 struct rlimit rlim;
2721 ret = get_errno(getrlimit(arg1, &rlim));
2722 if (!is_error(ret)) {
2723 struct target_rlimit *target_rlim = (void *)arg2;
2724 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2725 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2726 }
2727 break;
2728 }
2729 #endif
2730 case TARGET_NR_truncate64:
2731 goto unimplemented;
2732 case TARGET_NR_ftruncate64:
2733 goto unimplemented;
2734 case TARGET_NR_stat64:
2735 ret = get_errno(stat(path((const char *)arg1), &st));
2736 goto do_stat64;
2737 case TARGET_NR_lstat64:
2738 ret = get_errno(lstat(path((const char *)arg1), &st));
2739 goto do_stat64;
2740 case TARGET_NR_fstat64:
2741 {
2742 ret = get_errno(fstat(arg1, &st));
2743 do_stat64:
2744 if (!is_error(ret)) {
2745 struct target_stat64 *target_st = (void *)arg2;
2746 memset(target_st, 0, sizeof(struct target_stat64));
2747 put_user(st.st_dev, &target_st->st_dev);
2748 put_user(st.st_ino, &target_st->st_ino);
2749 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2750 put_user(st.st_ino, &target_st->__st_ino);
2751 #endif
2752 put_user(st.st_mode, &target_st->st_mode);
2753 put_user(st.st_nlink, &target_st->st_nlink);
2754 put_user(st.st_uid, &target_st->st_uid);
2755 put_user(st.st_gid, &target_st->st_gid);
2756 put_user(st.st_rdev, &target_st->st_rdev);
2757 /* XXX: better use of kernel struct */
2758 put_user(st.st_size, &target_st->st_size);
2759 put_user(st.st_blksize, &target_st->st_blksize);
2760 put_user(st.st_blocks, &target_st->st_blocks);
2761 put_user(st.st_atime, &target_st->target_st_atime);
2762 put_user(st.st_mtime, &target_st->target_st_mtime);
2763 put_user(st.st_ctime, &target_st->target_st_ctime);
2764 }
2765 }
2766 break;
2767
2768 #ifdef USE_UID16
2769 case TARGET_NR_lchown:
2770 ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2771 break;
2772 case TARGET_NR_getuid:
2773 ret = get_errno(high2lowuid(getuid()));
2774 break;
2775 case TARGET_NR_getgid:
2776 ret = get_errno(high2lowgid(getgid()));
2777 break;
2778 case TARGET_NR_geteuid:
2779 ret = get_errno(high2lowuid(geteuid()));
2780 break;
2781 case TARGET_NR_getegid:
2782 ret = get_errno(high2lowgid(getegid()));
2783 break;
2784 case TARGET_NR_setreuid:
2785 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2786 break;
2787 case TARGET_NR_setregid:
2788 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2789 break;
2790 case TARGET_NR_getgroups:
2791 {
2792 int gidsetsize = arg1;
2793 uint16_t *target_grouplist = (void *)arg2;
2794 gid_t *grouplist;
2795 int i;
2796
2797 grouplist = alloca(gidsetsize * sizeof(gid_t));
2798 ret = get_errno(getgroups(gidsetsize, grouplist));
2799 if (!is_error(ret)) {
2800 for(i = 0;i < gidsetsize; i++)
2801 target_grouplist[i] = tswap16(grouplist[i]);
2802 }
2803 }
2804 break;
2805 case TARGET_NR_setgroups:
2806 {
2807 int gidsetsize = arg1;
2808 uint16_t *target_grouplist = (void *)arg2;
2809 gid_t *grouplist;
2810 int i;
2811
2812 grouplist = alloca(gidsetsize * sizeof(gid_t));
2813 for(i = 0;i < gidsetsize; i++)
2814 grouplist[i] = tswap16(target_grouplist[i]);
2815 ret = get_errno(setgroups(gidsetsize, grouplist));
2816 }
2817 break;
2818 case TARGET_NR_fchown:
2819 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2820 break;
2821 #ifdef TARGET_NR_setresuid
2822 case TARGET_NR_setresuid:
2823 ret = get_errno(setresuid(low2highuid(arg1),
2824 low2highuid(arg2),
2825 low2highuid(arg3)));
2826 break;
2827 #endif
2828 #ifdef TARGET_NR_getresuid
2829 case TARGET_NR_getresuid:
2830 {
2831 int ruid, euid, suid;
2832 ret = get_errno(getresuid(&ruid, &euid, &suid));
2833 if (!is_error(ret)) {
2834 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2835 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2836 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2837 }
2838 }
2839 break;
2840 #endif
2841 #ifdef TARGET_NR_getresgid
2842 case TARGET_NR_setresgid:
2843 ret = get_errno(setresgid(low2highgid(arg1),
2844 low2highgid(arg2),
2845 low2highgid(arg3)));
2846 break;
2847 #endif
2848 #ifdef TARGET_NR_getresgid
2849 case TARGET_NR_getresgid:
2850 {
2851 int rgid, egid, sgid;
2852 ret = get_errno(getresgid(&rgid, &egid, &sgid));
2853 if (!is_error(ret)) {
2854 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2855 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2856 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2857 }
2858 }
2859 break;
2860 #endif
2861 case TARGET_NR_chown:
2862 ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2863 break;
2864 case TARGET_NR_setuid:
2865 ret = get_errno(setuid(low2highuid(arg1)));
2866 break;
2867 case TARGET_NR_setgid:
2868 ret = get_errno(setgid(low2highgid(arg1)));
2869 break;
2870 case TARGET_NR_setfsuid:
2871 ret = get_errno(setfsuid(arg1));
2872 break;
2873 case TARGET_NR_setfsgid:
2874 ret = get_errno(setfsgid(arg1));
2875 break;
2876 #endif /* USE_UID16 */
2877
2878 case TARGET_NR_lchown32:
2879 ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2880 break;
2881 case TARGET_NR_getuid32:
2882 ret = get_errno(getuid());
2883 break;
2884 case TARGET_NR_getgid32:
2885 ret = get_errno(getgid());
2886 break;
2887 case TARGET_NR_geteuid32:
2888 ret = get_errno(geteuid());
2889 break;
2890 case TARGET_NR_getegid32:
2891 ret = get_errno(getegid());
2892 break;
2893 case TARGET_NR_setreuid32:
2894 ret = get_errno(setreuid(arg1, arg2));
2895 break;
2896 case TARGET_NR_setregid32:
2897 ret = get_errno(setregid(arg1, arg2));
2898 break;
2899 case TARGET_NR_getgroups32:
2900 goto unimplemented;
2901 case TARGET_NR_setgroups32:
2902 goto unimplemented;
2903 case TARGET_NR_fchown32:
2904 ret = get_errno(fchown(arg1, arg2, arg3));
2905 break;
2906 case TARGET_NR_setresuid32:
2907 ret = get_errno(setresuid(arg1, arg2, arg3));
2908 break;
2909 case TARGET_NR_getresuid32:
2910 {
2911 int ruid, euid, suid;
2912 ret = get_errno(getresuid(&ruid, &euid, &suid));
2913 if (!is_error(ret)) {
2914 *(uint32_t *)arg1 = tswap32(ruid);
2915 *(uint32_t *)arg2 = tswap32(euid);
2916 *(uint32_t *)arg3 = tswap32(suid);
2917 }
2918 }
2919 break;
2920 case TARGET_NR_setresgid32:
2921 ret = get_errno(setresgid(arg1, arg2, arg3));
2922 break;
2923 case TARGET_NR_getresgid32:
2924 {
2925 int rgid, egid, sgid;
2926 ret = get_errno(getresgid(&rgid, &egid, &sgid));
2927 if (!is_error(ret)) {
2928 *(uint32_t *)arg1 = tswap32(rgid);
2929 *(uint32_t *)arg2 = tswap32(egid);
2930 *(uint32_t *)arg3 = tswap32(sgid);
2931 }
2932 }
2933 break;
2934 case TARGET_NR_chown32:
2935 ret = get_errno(chown((const char *)arg1, arg2, arg3));
2936 break;
2937 case TARGET_NR_setuid32:
2938 ret = get_errno(setuid(arg1));
2939 break;
2940 case TARGET_NR_setgid32:
2941 ret = get_errno(setgid(arg1));
2942 break;
2943 case TARGET_NR_setfsuid32:
2944 ret = get_errno(setfsuid(arg1));
2945 break;
2946 case TARGET_NR_setfsgid32:
2947 ret = get_errno(setfsgid(arg1));
2948 break;
2949
2950 case TARGET_NR_pivot_root:
2951 goto unimplemented;
2952 #ifdef TARGET_NR_mincore
2953 case TARGET_NR_mincore:
2954 goto unimplemented;
2955 #endif
2956 #ifdef TARGET_NR_madvise
2957 case TARGET_NR_madvise:
2958 goto unimplemented;
2959 #endif
2960 #if TARGET_LONG_BITS == 32
2961 case TARGET_NR_fcntl64:
2962 {
2963 struct flock64 fl;
2964 struct target_flock64 *target_fl = (void *)arg3;
2965
2966 switch(arg2) {
2967 case F_GETLK64:
2968 ret = get_errno(fcntl(arg1, arg2, &fl));
2969 if (ret == 0) {
2970 target_fl->l_type = tswap16(fl.l_type);
2971 target_fl->l_whence = tswap16(fl.l_whence);
2972 target_fl->l_start = tswap64(fl.l_start);
2973 target_fl->l_len = tswap64(fl.l_len);
2974 target_fl->l_pid = tswapl(fl.l_pid);
2975 }
2976 break;
2977
2978 case F_SETLK64:
2979 case F_SETLKW64:
2980 fl.l_type = tswap16(target_fl->l_type);
2981 fl.l_whence = tswap16(target_fl->l_whence);
2982 fl.l_start = tswap64(target_fl->l_start);
2983 fl.l_len = tswap64(target_fl->l_len);
2984 fl.l_pid = tswapl(target_fl->l_pid);
2985 ret = get_errno(fcntl(arg1, arg2, &fl));
2986 break;
2987 default:
2988 ret = get_errno(do_fcntl(arg1, arg2, arg3));
2989 break;
2990 }
2991 break;
2992 }
2993 #endif
2994 #ifdef TARGET_NR_security
2995 case TARGET_NR_security:
2996 goto unimplemented;
2997 #endif
2998 #ifdef TARGET_NR_getpagesize
2999 case TARGET_NR_getpagesize:
3000 ret = TARGET_PAGE_SIZE;
3001 break;
3002 #endif
3003 case TARGET_NR_gettid:
3004 ret = get_errno(gettid());
3005 break;
3006 case TARGET_NR_readahead:
3007 goto unimplemented;
3008 #ifdef TARGET_NR_setxattr
3009 case TARGET_NR_setxattr:
3010 case TARGET_NR_lsetxattr:
3011 case TARGET_NR_fsetxattr:
3012 case TARGET_NR_getxattr:
3013 case TARGET_NR_lgetxattr:
3014 case TARGET_NR_fgetxattr:
3015 case TARGET_NR_listxattr:
3016 case TARGET_NR_llistxattr:
3017 case TARGET_NR_flistxattr:
3018 case TARGET_NR_removexattr:
3019 case TARGET_NR_lremovexattr:
3020 case TARGET_NR_fremovexattr:
3021 goto unimplemented_nowarn;
3022 #endif
3023 #ifdef TARGET_NR_set_thread_area
3024 case TARGET_NR_set_thread_area:
3025 case TARGET_NR_get_thread_area:
3026 goto unimplemented_nowarn;
3027 #endif
3028 default:
3029 unimplemented:
3030 gemu_log("qemu: Unsupported syscall: %d\n", num);
3031 unimplemented_nowarn:
3032 ret = -ENOSYS;
3033 break;
3034 }
3035 fail:
3036 #ifdef DEBUG
3037 gemu_log(" = %ld\n", ret);
3038 #endif
3039 return ret;
3040 }
3041
Qemu copy for testing