?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Rearrange PCI host emulation code.
[qemu/mini2440.git] / linux-user / syscall.c
blob7da469aa8978c11c58a0cd00a26ed36b26067aac
1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <elf.h>
25 #include <endian.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <time.h>
30 #include <sys/types.h>
31 #include <sys/wait.h>
32 #include <sys/time.h>
33 #include <sys/stat.h>
34 #include <sys/mount.h>
35 #include <sys/resource.h>
36 #include <sys/mman.h>
37 #include <sys/swap.h>
38 #include <signal.h>
39 #include <sched.h>
40 #include <sys/socket.h>
41 #include <sys/uio.h>
42 #include <sys/poll.h>
43 #include <sys/times.h>
44 #include <sys/shm.h>
45 #include <sys/statfs.h>
46 #include <utime.h>
47 #include <sys/sysinfo.h>
48 //#include <sys/user.h>
49 #include <netinet/ip.h>
50 #include <netinet/tcp.h>
51
52 #define termios host_termios
53 #define winsize host_winsize
54 #define termio host_termio
55 #define sgttyb host_sgttyb /* same as target */
56 #define tchars host_tchars /* same as target */
57 #define ltchars host_ltchars /* same as target */
58
59 #include <linux/termios.h>
60 #include <linux/unistd.h>
61 #include <linux/utsname.h>
62 #include <linux/cdrom.h>
63 #include <linux/hdreg.h>
64 #include <linux/soundcard.h>
65 #include <linux/dirent.h>
66 #include <linux/kd.h>
67
68 #include "qemu.h"
69
70 //#define DEBUG
71
72 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
73 /* 16 bit uid wrappers emulation */
74 #define USE_UID16
75 #endif
76
77 //#include <linux/msdos_fs.h>
78 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
79 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
80
81
82 #if defined(__powerpc__)
83 #undef __syscall_nr
84 #undef __sc_loadargs_0
85 #undef __sc_loadargs_1
86 #undef __sc_loadargs_2
87 #undef __sc_loadargs_3
88 #undef __sc_loadargs_4
89 #undef __sc_loadargs_5
90 #undef __sc_asm_input_0
91 #undef __sc_asm_input_1
92 #undef __sc_asm_input_2
93 #undef __sc_asm_input_3
94 #undef __sc_asm_input_4
95 #undef __sc_asm_input_5
96 #undef _syscall0
97 #undef _syscall1
98 #undef _syscall2
99 #undef _syscall3
100 #undef _syscall4
101 #undef _syscall5
102
103 /* need to redefine syscalls as Linux kernel defines are incorrect for
104 the clobber list */
105 /* On powerpc a system call basically clobbers the same registers like a
106 * function call, with the exception of LR (which is needed for the
107 * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
108 * an error return status).
109 */
110
111 #define __syscall_nr(nr, type, name, args...) \
112 unsigned long __sc_ret, __sc_err; \
113 { \
114 register unsigned long __sc_0 __asm__ ("r0"); \
115 register unsigned long __sc_3 __asm__ ("r3"); \
116 register unsigned long __sc_4 __asm__ ("r4"); \
117 register unsigned long __sc_5 __asm__ ("r5"); \
118 register unsigned long __sc_6 __asm__ ("r6"); \
119 register unsigned long __sc_7 __asm__ ("r7"); \
120 \
121 __sc_loadargs_##nr(name, args); \
122 __asm__ __volatile__ \
123 ("sc \n\t" \
124 "mfcr %0 " \
125 : "=&r" (__sc_0), \
126 "=&r" (__sc_3), "=&r" (__sc_4), \
127 "=&r" (__sc_5), "=&r" (__sc_6), \
128 "=&r" (__sc_7) \
129 : __sc_asm_input_##nr \
130 : "cr0", "ctr", "memory", \
131 "r8", "r9", "r10","r11", "r12"); \
132 __sc_ret = __sc_3; \
133 __sc_err = __sc_0; \
134 } \
135 if (__sc_err & 0x10000000) \
136 { \
137 errno = __sc_ret; \
138 __sc_ret = -1; \
139 } \
140 return (type) __sc_ret
141
142 #define __sc_loadargs_0(name, dummy...) \
143 __sc_0 = __NR_##name
144 #define __sc_loadargs_1(name, arg1) \
145 __sc_loadargs_0(name); \
146 __sc_3 = (unsigned long) (arg1)
147 #define __sc_loadargs_2(name, arg1, arg2) \
148 __sc_loadargs_1(name, arg1); \
149 __sc_4 = (unsigned long) (arg2)
150 #define __sc_loadargs_3(name, arg1, arg2, arg3) \
151 __sc_loadargs_2(name, arg1, arg2); \
152 __sc_5 = (unsigned long) (arg3)
153 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4) \
154 __sc_loadargs_3(name, arg1, arg2, arg3); \
155 __sc_6 = (unsigned long) (arg4)
156 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5) \
157 __sc_loadargs_4(name, arg1, arg2, arg3, arg4); \
158 __sc_7 = (unsigned long) (arg5)
159
160 #define __sc_asm_input_0 "0" (__sc_0)
161 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
162 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
163 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
164 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
165 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
166
167 #define _syscall0(type,name) \
168 type name(void) \
169 { \
170 __syscall_nr(0, type, name); \
171 }
172
173 #define _syscall1(type,name,type1,arg1) \
174 type name(type1 arg1) \
175 { \
176 __syscall_nr(1, type, name, arg1); \
177 }
178
179 #define _syscall2(type,name,type1,arg1,type2,arg2) \
180 type name(type1 arg1, type2 arg2) \
181 { \
182 __syscall_nr(2, type, name, arg1, arg2); \
183 }
184
185 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
186 type name(type1 arg1, type2 arg2, type3 arg3) \
187 { \
188 __syscall_nr(3, type, name, arg1, arg2, arg3); \
189 }
190
191 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
192 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
193 { \
194 __syscall_nr(4, type, name, arg1, arg2, arg3, arg4); \
195 }
196
197 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
198 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
199 { \
200 __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5); \
201 }
202 #endif
203
204 #define __NR_sys_uname __NR_uname
205 #define __NR_sys_getcwd1 __NR_getcwd
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 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
228 #ifdef __NR_exit_group
229 _syscall1(int,exit_group,int,error_code)
230 #endif
231
232 extern int personality(int);
233 extern int flock(int, int);
234 extern int setfsuid(int);
235 extern int setfsgid(int);
236 extern int setresuid(uid_t, uid_t, uid_t);
237 extern int getresuid(uid_t *, uid_t *, uid_t *);
238 extern int setresgid(gid_t, gid_t, gid_t);
239 extern int getresgid(gid_t *, gid_t *, gid_t *);
240 extern int setgroups(int, gid_t *);
241
242 static inline long get_errno(long ret)
243 {
244 if (ret == -1)
245 return -errno;
246 else
247 return ret;
248 }
249
250 static inline int is_error(long ret)
251 {
252 return (unsigned long)ret >= (unsigned long)(-4096);
253 }
254
255 static target_ulong target_brk;
256 static target_ulong target_original_brk;
257
258 void target_set_brk(target_ulong new_brk)
259 {
260 target_original_brk = target_brk = new_brk;
261 }
262
263 long do_brk(target_ulong new_brk)
264 {
265 target_ulong brk_page;
266 long mapped_addr;
267 int new_alloc_size;
268
269 if (!new_brk)
270 return target_brk;
271 if (new_brk < target_original_brk)
272 return -ENOMEM;
273
274 brk_page = HOST_PAGE_ALIGN(target_brk);
275
276 /* If the new brk is less than this, set it and we're done... */
277 if (new_brk < brk_page) {
278 target_brk = new_brk;
279 return target_brk;
280 }
281
282 /* We need to allocate more memory after the brk... */
283 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
284 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
285 PROT_READ|PROT_WRITE,
286 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
287 if (is_error(mapped_addr)) {
288 return mapped_addr;
289 } else {
290 target_brk = new_brk;
291 return target_brk;
292 }
293 }
294
295 static inline fd_set *target_to_host_fds(fd_set *fds,
296 target_long *target_fds, int n)
297 {
298 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
299 return (fd_set *)target_fds;
300 #else
301 int i, b;
302 if (target_fds) {
303 FD_ZERO(fds);
304 for(i = 0;i < n; i++) {
305 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
306 (i & (TARGET_LONG_BITS - 1))) & 1;
307 if (b)
308 FD_SET(i, fds);
309 }
310 return fds;
311 } else {
312 return NULL;
313 }
314 #endif
315 }
316
317 static inline void host_to_target_fds(target_long *target_fds,
318 fd_set *fds, int n)
319 {
320 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
321 /* nothing to do */
322 #else
323 int i, nw, j, k;
324 target_long v;
325
326 if (target_fds) {
327 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
328 k = 0;
329 for(i = 0;i < nw; i++) {
330 v = 0;
331 for(j = 0; j < TARGET_LONG_BITS; j++) {
332 v |= ((FD_ISSET(k, fds) != 0) << j);
333 k++;
334 }
335 target_fds[i] = tswapl(v);
336 }
337 }
338 #endif
339 }
340
341 #if defined(__alpha__)
342 #define HOST_HZ 1024
343 #else
344 #define HOST_HZ 100
345 #endif
346
347 static inline long host_to_target_clock_t(long ticks)
348 {
349 #if HOST_HZ == TARGET_HZ
350 return ticks;
351 #else
352 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
353 #endif
354 }
355
356 static inline void host_to_target_rusage(target_ulong target_addr,
357 const struct rusage *rusage)
358 {
359 struct target_rusage *target_rusage;
360
361 lock_user_struct(target_rusage, target_addr, 0);
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 unlock_user_struct(target_rusage, target_addr, 1);
381 }
382
383 static inline void target_to_host_timeval(struct timeval *tv,
384 target_ulong target_addr)
385 {
386 struct target_timeval *target_tv;
387
388 lock_user_struct(target_tv, target_addr, 1);
389 tv->tv_sec = tswapl(target_tv->tv_sec);
390 tv->tv_usec = tswapl(target_tv->tv_usec);
391 unlock_user_struct(target_tv, target_addr, 0);
392 }
393
394 static inline void host_to_target_timeval(target_ulong target_addr,
395 const struct timeval *tv)
396 {
397 struct target_timeval *target_tv;
398
399 lock_user_struct(target_tv, target_addr, 0);
400 target_tv->tv_sec = tswapl(tv->tv_sec);
401 target_tv->tv_usec = tswapl(tv->tv_usec);
402 unlock_user_struct(target_tv, target_addr, 1);
403 }
404
405
406 static long do_select(long n,
407 target_ulong rfd_p, target_ulong wfd_p,
408 target_ulong efd_p, target_ulong target_tv)
409 {
410 fd_set rfds, wfds, efds;
411 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
412 target_long *target_rfds, *target_wfds, *target_efds;
413 struct timeval tv, *tv_ptr;
414 long ret;
415 int ok;
416
417 if (rfd_p) {
418 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
419 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
420 } else {
421 target_rfds = NULL;
422 rfds_ptr = NULL;
423 }
424 if (wfd_p) {
425 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
426 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
427 } else {
428 target_wfds = NULL;
429 wfds_ptr = NULL;
430 }
431 if (efd_p) {
432 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
433 efds_ptr = target_to_host_fds(&efds, target_efds, n);
434 } else {
435 target_efds = NULL;
436 efds_ptr = NULL;
437 }
438
439 if (target_tv) {
440 target_to_host_timeval(&tv, target_tv);
441 tv_ptr = &tv;
442 } else {
443 tv_ptr = NULL;
444 }
445 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
446 ok = !is_error(ret);
447
448 if (ok) {
449 host_to_target_fds(target_rfds, rfds_ptr, n);
450 host_to_target_fds(target_wfds, wfds_ptr, n);
451 host_to_target_fds(target_efds, efds_ptr, n);
452
453 if (target_tv) {
454 host_to_target_timeval(target_tv, &tv);
455 }
456 }
457 if (target_rfds)
458 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
459 if (target_wfds)
460 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
461 if (target_efds)
462 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
463
464 return ret;
465 }
466
467 static inline void target_to_host_sockaddr(struct sockaddr *addr,
468 target_ulong target_addr,
469 socklen_t len)
470 {
471 struct target_sockaddr *target_saddr;
472
473 target_saddr = lock_user(target_addr, len, 1);
474 memcpy(addr, target_saddr, len);
475 addr->sa_family = tswap16(target_saddr->sa_family);
476 unlock_user(target_saddr, target_addr, 0);
477 }
478
479 static inline void host_to_target_sockaddr(target_ulong target_addr,
480 struct sockaddr *addr,
481 socklen_t len)
482 {
483 struct target_sockaddr *target_saddr;
484
485 target_saddr = lock_user(target_addr, len, 0);
486 memcpy(target_saddr, addr, len);
487 target_saddr->sa_family = tswap16(addr->sa_family);
488 unlock_user(target_saddr, target_addr, len);
489 }
490
491 /* ??? Should this also swap msgh->name? */
492 static inline void target_to_host_cmsg(struct msghdr *msgh,
493 struct target_msghdr *target_msgh)
494 {
495 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
496 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
497 socklen_t space = 0;
498
499 while (cmsg && target_cmsg) {
500 void *data = CMSG_DATA(cmsg);
501 void *target_data = TARGET_CMSG_DATA(target_cmsg);
502
503 int len = tswapl(target_cmsg->cmsg_len)
504 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
505
506 space += CMSG_SPACE(len);
507 if (space > msgh->msg_controllen) {
508 space -= CMSG_SPACE(len);
509 gemu_log("Host cmsg overflow\n");
510 break;
511 }
512
513 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
514 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
515 cmsg->cmsg_len = CMSG_LEN(len);
516
517 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
518 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
519 memcpy(data, target_data, len);
520 } else {
521 int *fd = (int *)data;
522 int *target_fd = (int *)target_data;
523 int i, numfds = len / sizeof(int);
524
525 for (i = 0; i < numfds; i++)
526 fd[i] = tswap32(target_fd[i]);
527 }
528
529 cmsg = CMSG_NXTHDR(msgh, cmsg);
530 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
531 }
532
533 msgh->msg_controllen = space;
534 }
535
536 /* ??? Should this also swap msgh->name? */
537 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
538 struct msghdr *msgh)
539 {
540 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
541 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
542 socklen_t space = 0;
543
544 while (cmsg && target_cmsg) {
545 void *data = CMSG_DATA(cmsg);
546 void *target_data = TARGET_CMSG_DATA(target_cmsg);
547
548 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
549
550 space += TARGET_CMSG_SPACE(len);
551 if (space > tswapl(target_msgh->msg_controllen)) {
552 space -= TARGET_CMSG_SPACE(len);
553 gemu_log("Target cmsg overflow\n");
554 break;
555 }
556
557 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
558 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
559 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
560
561 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
562 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
563 memcpy(target_data, data, len);
564 } else {
565 int *fd = (int *)data;
566 int *target_fd = (int *)target_data;
567 int i, numfds = len / sizeof(int);
568
569 for (i = 0; i < numfds; i++)
570 target_fd[i] = tswap32(fd[i]);
571 }
572
573 cmsg = CMSG_NXTHDR(msgh, cmsg);
574 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
575 }
576
577 msgh->msg_controllen = tswapl(space);
578 }
579
580 static long do_setsockopt(int sockfd, int level, int optname,
581 target_ulong optval, socklen_t optlen)
582 {
583 int val, ret;
584
585 switch(level) {
586 case SOL_TCP:
587 /* TCP options all take an 'int' value. */
588 if (optlen < sizeof(uint32_t))
589 return -EINVAL;
590
591 val = tget32(optval);
592 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
593 break;
594 case SOL_IP:
595 switch(optname) {
596 case IP_TOS:
597 case IP_TTL:
598 case IP_HDRINCL:
599 case IP_ROUTER_ALERT:
600 case IP_RECVOPTS:
601 case IP_RETOPTS:
602 case IP_PKTINFO:
603 case IP_MTU_DISCOVER:
604 case IP_RECVERR:
605 case IP_RECVTOS:
606 #ifdef IP_FREEBIND
607 case IP_FREEBIND:
608 #endif
609 case IP_MULTICAST_TTL:
610 case IP_MULTICAST_LOOP:
611 val = 0;
612 if (optlen >= sizeof(uint32_t)) {
613 val = tget32(optval);
614 } else if (optlen >= 1) {
615 val = tget8(optval);
616 }
617 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
618 break;
619 default:
620 goto unimplemented;
621 }
622 break;
623 case SOL_SOCKET:
624 switch (optname) {
625 /* Options with 'int' argument. */
626 case SO_DEBUG:
627 case SO_REUSEADDR:
628 case SO_TYPE:
629 case SO_ERROR:
630 case SO_DONTROUTE:
631 case SO_BROADCAST:
632 case SO_SNDBUF:
633 case SO_RCVBUF:
634 case SO_KEEPALIVE:
635 case SO_OOBINLINE:
636 case SO_NO_CHECK:
637 case SO_PRIORITY:
638 #ifdef SO_BSDCOMPAT
639 case SO_BSDCOMPAT:
640 #endif
641 case SO_PASSCRED:
642 case SO_TIMESTAMP:
643 case SO_RCVLOWAT:
644 case SO_RCVTIMEO:
645 case SO_SNDTIMEO:
646 if (optlen < sizeof(uint32_t))
647 return -EINVAL;
648
649 val = tget32(optval);
650 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
651 break;
652 default:
653 goto unimplemented;
654 }
655 break;
656 default:
657 unimplemented:
658 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
659 ret = -ENOSYS;
660 }
661 return ret;
662 }
663
664 static long do_getsockopt(int sockfd, int level, int optname,
665 target_ulong optval, target_ulong optlen)
666 {
667 int len, lv, val, ret;
668
669 switch(level) {
670 case SOL_SOCKET:
671 switch (optname) {
672 case SO_LINGER:
673 case SO_RCVTIMEO:
674 case SO_SNDTIMEO:
675 case SO_PEERCRED:
676 case SO_PEERNAME:
677 /* These don't just return a single integer */
678 goto unimplemented;
679 default:
680 goto int_case;
681 }
682 break;
683 case SOL_TCP:
684 /* TCP options all take an 'int' value. */
685 int_case:
686 len = tget32(optlen);
687 if (len < 0)
688 return -EINVAL;
689 lv = sizeof(int);
690 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
691 if (ret < 0)
692 return ret;
693 val = tswap32(val);
694 if (len > lv)
695 len = lv;
696 if (len == 4)
697 tput32(optval, val);
698 else
699 tput8(optval, val);
700 tput32(optlen, len);
701 break;
702 case SOL_IP:
703 switch(optname) {
704 case IP_TOS:
705 case IP_TTL:
706 case IP_HDRINCL:
707 case IP_ROUTER_ALERT:
708 case IP_RECVOPTS:
709 case IP_RETOPTS:
710 case IP_PKTINFO:
711 case IP_MTU_DISCOVER:
712 case IP_RECVERR:
713 case IP_RECVTOS:
714 #ifdef IP_FREEBIND
715 case IP_FREEBIND:
716 #endif
717 case IP_MULTICAST_TTL:
718 case IP_MULTICAST_LOOP:
719 len = tget32(optlen);
720 if (len < 0)
721 return -EINVAL;
722 lv = sizeof(int);
723 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
724 if (ret < 0)
725 return ret;
726 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
727 len = 1;
728 tput32(optlen, len);
729 tput8(optval, val);
730 } else {
731 if (len > sizeof(int))
732 len = sizeof(int);
733 tput32(optlen, len);
734 tput32(optval, val);
735 }
736 break;
737 default:
738 goto unimplemented;
739 }
740 break;
741 default:
742 unimplemented:
743 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
744 level, optname);
745 ret = -ENOSYS;
746 break;
747 }
748 return ret;
749 }
750
751 static void lock_iovec(struct iovec *vec, target_ulong target_addr,
752 int count, int copy)
753 {
754 struct target_iovec *target_vec;
755 target_ulong base;
756 int i;
757
758 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
759 for(i = 0;i < count; i++) {
760 base = tswapl(target_vec[i].iov_base);
761 vec[i].iov_len = tswapl(target_vec[i].iov_len);
762 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
763 }
764 unlock_user (target_vec, target_addr, 0);
765 }
766
767 static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
768 int count, int copy)
769 {
770 struct target_iovec *target_vec;
771 target_ulong base;
772 int i;
773
774 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
775 for(i = 0;i < count; i++) {
776 base = tswapl(target_vec[i].iov_base);
777 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
778 }
779 unlock_user (target_vec, target_addr, 0);
780 }
781
782 static long do_socketcall(int num, target_ulong vptr)
783 {
784 long ret;
785 const int n = sizeof(target_ulong);
786
787 switch(num) {
788 case SOCKOP_socket:
789 {
790 int domain = tgetl(vptr);
791 int type = tgetl(vptr + n);
792 int protocol = tgetl(vptr + 2 * n);
793
794 ret = get_errno(socket(domain, type, protocol));
795 }
796 break;
797 case SOCKOP_bind:
798 {
799 int sockfd = tgetl(vptr);
800 target_ulong target_addr = tgetl(vptr + n);
801 socklen_t addrlen = tgetl(vptr + 2 * n);
802 void *addr = alloca(addrlen);
803
804 target_to_host_sockaddr(addr, target_addr, addrlen);
805 ret = get_errno(bind(sockfd, addr, addrlen));
806 }
807 break;
808 case SOCKOP_connect:
809 {
810 int sockfd = tgetl(vptr);
811 target_ulong target_addr = tgetl(vptr + n);
812 socklen_t addrlen = tgetl(vptr + 2 * n);
813 void *addr = alloca(addrlen);
814
815 target_to_host_sockaddr(addr, target_addr, addrlen);
816 ret = get_errno(connect(sockfd, addr, addrlen));
817 }
818 break;
819 case SOCKOP_listen:
820 {
821 int sockfd = tgetl(vptr);
822 int backlog = tgetl(vptr + n);
823
824 ret = get_errno(listen(sockfd, backlog));
825 }
826 break;
827 case SOCKOP_accept:
828 {
829 int sockfd = tgetl(vptr);
830 target_ulong target_addr = tgetl(vptr + n);
831 target_ulong target_addrlen = tgetl(vptr + 2 * n);
832 socklen_t addrlen = tget32(target_addrlen);
833 void *addr = alloca(addrlen);
834
835 ret = get_errno(accept(sockfd, addr, &addrlen));
836 if (!is_error(ret)) {
837 host_to_target_sockaddr(target_addr, addr, addrlen);
838 tput32(target_addrlen, addrlen);
839 }
840 }
841 break;
842 case SOCKOP_getsockname:
843 {
844 int sockfd = tgetl(vptr);
845 target_ulong target_addr = tgetl(vptr + n);
846 target_ulong target_addrlen = tgetl(vptr + 2 * n);
847 socklen_t addrlen = tget32(target_addrlen);
848 void *addr = alloca(addrlen);
849
850 ret = get_errno(getsockname(sockfd, addr, &addrlen));
851 if (!is_error(ret)) {
852 host_to_target_sockaddr(target_addr, addr, addrlen);
853 tput32(target_addrlen, addrlen);
854 }
855 }
856 break;
857 case SOCKOP_getpeername:
858 {
859 int sockfd = tgetl(vptr);
860 target_ulong target_addr = tgetl(vptr + n);
861 target_ulong target_addrlen = tgetl(vptr + 2 * n);
862 socklen_t addrlen = tget32(target_addrlen);
863 void *addr = alloca(addrlen);
864
865 ret = get_errno(getpeername(sockfd, addr, &addrlen));
866 if (!is_error(ret)) {
867 host_to_target_sockaddr(target_addr, addr, addrlen);
868 tput32(target_addrlen, addrlen);
869 }
870 }
871 break;
872 case SOCKOP_socketpair:
873 {
874 int domain = tgetl(vptr);
875 int type = tgetl(vptr + n);
876 int protocol = tgetl(vptr + 2 * n);
877 target_ulong target_tab = tgetl(vptr + 3 * n);
878 int tab[2];
879
880 ret = get_errno(socketpair(domain, type, protocol, tab));
881 if (!is_error(ret)) {
882 tput32(target_tab, tab[0]);
883 tput32(target_tab + 4, tab[1]);
884 }
885 }
886 break;
887 case SOCKOP_send:
888 {
889 int sockfd = tgetl(vptr);
890 target_ulong msg = tgetl(vptr + n);
891 size_t len = tgetl(vptr + 2 * n);
892 int flags = tgetl(vptr + 3 * n);
893 void *host_msg;
894
895 host_msg = lock_user(msg, len, 1);
896 ret = get_errno(send(sockfd, host_msg, len, flags));
897 unlock_user(host_msg, msg, 0);
898 }
899 break;
900 case SOCKOP_recv:
901 {
902 int sockfd = tgetl(vptr);
903 target_ulong msg = tgetl(vptr + n);
904 size_t len = tgetl(vptr + 2 * n);
905 int flags = tgetl(vptr + 3 * n);
906 void *host_msg;
907
908 host_msg = lock_user(msg, len, 0);
909 ret = get_errno(recv(sockfd, host_msg, len, flags));
910 unlock_user(host_msg, msg, ret);
911 }
912 break;
913 case SOCKOP_sendto:
914 {
915 int sockfd = tgetl(vptr);
916 target_ulong msg = tgetl(vptr + n);
917 size_t len = tgetl(vptr + 2 * n);
918 int flags = tgetl(vptr + 3 * n);
919 target_ulong target_addr = tgetl(vptr + 4 * n);
920 socklen_t addrlen = tgetl(vptr + 5 * n);
921 void *addr = alloca(addrlen);
922 void *host_msg;
923
924 host_msg = lock_user(msg, len, 1);
925 target_to_host_sockaddr(addr, target_addr, addrlen);
926 ret = get_errno(sendto(sockfd, host_msg, len, flags, addr, addrlen));
927 unlock_user(host_msg, msg, 0);
928 }
929 break;
930 case SOCKOP_recvfrom:
931 {
932 int sockfd = tgetl(vptr);
933 target_ulong msg = tgetl(vptr + n);
934 size_t len = tgetl(vptr + 2 * n);
935 int flags = tgetl(vptr + 3 * n);
936 target_ulong target_addr = tgetl(vptr + 4 * n);
937 target_ulong target_addrlen = tgetl(vptr + 5 * n);
938 socklen_t addrlen = tget32(target_addrlen);
939 void *addr = alloca(addrlen);
940 void *host_msg;
941
942 host_msg = lock_user(msg, len, 0);
943 ret = get_errno(recvfrom(sockfd, host_msg, len, flags, addr, &addrlen));
944 if (!is_error(ret)) {
945 host_to_target_sockaddr(target_addr, addr, addrlen);
946 tput32(target_addrlen, addrlen);
947 unlock_user(host_msg, msg, len);
948 } else {
949 unlock_user(host_msg, msg, 0);
950 }
951 }
952 break;
953 case SOCKOP_shutdown:
954 {
955 int sockfd = tgetl(vptr);
956 int how = tgetl(vptr + n);
957
958 ret = get_errno(shutdown(sockfd, how));
959 }
960 break;
961 case SOCKOP_sendmsg:
962 case SOCKOP_recvmsg:
963 {
964 int fd;
965 target_ulong target_msg;
966 struct target_msghdr *msgp;
967 struct msghdr msg;
968 int flags, count;
969 struct iovec *vec;
970 target_ulong target_vec;
971 int send = (num == SOCKOP_sendmsg);
972
973 target_msg = tgetl(vptr + n);
974 lock_user_struct(msgp, target_msg, 1);
975 if (msgp->msg_name) {
976 msg.msg_namelen = tswap32(msgp->msg_namelen);
977 msg.msg_name = alloca(msg.msg_namelen);
978 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
979 msg.msg_namelen);
980 } else {
981 msg.msg_name = NULL;
982 msg.msg_namelen = 0;
983 }
984 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
985 msg.msg_control = alloca(msg.msg_controllen);
986 msg.msg_flags = tswap32(msgp->msg_flags);
987
988 count = tswapl(msgp->msg_iovlen);
989 vec = alloca(count * sizeof(struct iovec));
990 target_vec = tswapl(msgp->msg_iov);
991 lock_iovec(vec, target_vec, count, send);
992 msg.msg_iovlen = count;
993 msg.msg_iov = vec;
994
995 fd = tgetl(vptr);
996 flags = tgetl(vptr + 2 * n);
997 if (send) {
998 target_to_host_cmsg(&msg, msgp);
999 ret = get_errno(sendmsg(fd, &msg, flags));
1000 } else {
1001 ret = get_errno(recvmsg(fd, &msg, flags));
1002 if (!is_error(ret))
1003 host_to_target_cmsg(msgp, &msg);
1004 }
1005 unlock_iovec(vec, target_vec, count, !send);
1006 }
1007 break;
1008 case SOCKOP_setsockopt:
1009 {
1010 int sockfd = tgetl(vptr);
1011 int level = tgetl(vptr + n);
1012 int optname = tgetl(vptr + 2 * n);
1013 target_ulong optval = tgetl(vptr + 3 * n);
1014 socklen_t optlen = tgetl(vptr + 4 * n);
1015
1016 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1017 }
1018 break;
1019 case SOCKOP_getsockopt:
1020 {
1021 int sockfd = tgetl(vptr);
1022 int level = tgetl(vptr + n);
1023 int optname = tgetl(vptr + 2 * n);
1024 target_ulong optval = tgetl(vptr + 3 * n);
1025 target_ulong poptlen = tgetl(vptr + 4 * n);
1026
1027 ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1028 }
1029 break;
1030 default:
1031 gemu_log("Unsupported socketcall: %d\n", num);
1032 ret = -ENOSYS;
1033 break;
1034 }
1035 return ret;
1036 }
1037
1038
1039 #define N_SHM_REGIONS 32
1040
1041 static struct shm_region {
1042 uint32_t start;
1043 uint32_t size;
1044 } shm_regions[N_SHM_REGIONS];
1045
1046 /* ??? This only works with linear mappings. */
1047 static long do_ipc(long call, long first, long second, long third,
1048 long ptr, long fifth)
1049 {
1050 int version;
1051 long ret = 0;
1052 unsigned long raddr;
1053 struct shmid_ds shm_info;
1054 int i;
1055
1056 version = call >> 16;
1057 call &= 0xffff;
1058
1059 switch (call) {
1060 case IPCOP_shmat:
1061 /* SHM_* flags are the same on all linux platforms */
1062 ret = get_errno((long) shmat(first, (void *) ptr, second));
1063 if (is_error(ret))
1064 break;
1065 raddr = ret;
1066 /* find out the length of the shared memory segment */
1067
1068 ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1069 if (is_error(ret)) {
1070 /* can't get length, bail out */
1071 shmdt((void *) raddr);
1072 break;
1073 }
1074 page_set_flags(raddr, raddr + shm_info.shm_segsz,
1075 PAGE_VALID | PAGE_READ |
1076 ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1077 for (i = 0; i < N_SHM_REGIONS; ++i) {
1078 if (shm_regions[i].start == 0) {
1079 shm_regions[i].start = raddr;
1080 shm_regions[i].size = shm_info.shm_segsz;
1081 break;
1082 }
1083 }
1084 if (put_user(raddr, (uint32_t *)third))
1085 return -EFAULT;
1086 ret = 0;
1087 break;
1088 case IPCOP_shmdt:
1089 for (i = 0; i < N_SHM_REGIONS; ++i) {
1090 if (shm_regions[i].start == ptr) {
1091 shm_regions[i].start = 0;
1092 page_set_flags(ptr, shm_regions[i].size, 0);
1093 break;
1094 }
1095 }
1096 ret = get_errno(shmdt((void *) ptr));
1097 break;
1098
1099 case IPCOP_shmget:
1100 /* IPC_* flag values are the same on all linux platforms */
1101 ret = get_errno(shmget(first, second, third));
1102 break;
1103
1104 /* IPC_* and SHM_* command values are the same on all linux platforms */
1105 case IPCOP_shmctl:
1106 switch(second) {
1107 case IPC_RMID:
1108 case SHM_LOCK:
1109 case SHM_UNLOCK:
1110 ret = get_errno(shmctl(first, second, NULL));
1111 break;
1112 default:
1113 goto unimplemented;
1114 }
1115 break;
1116 default:
1117 unimplemented:
1118 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1119 ret = -ENOSYS;
1120 break;
1121 }
1122 return ret;
1123 }
1124
1125 /* kernel structure types definitions */
1126 #define IFNAMSIZ 16
1127
1128 #define STRUCT(name, list...) STRUCT_ ## name,
1129 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
1130 enum {
1131 #include "syscall_types.h"
1132 };
1133 #undef STRUCT
1134 #undef STRUCT_SPECIAL
1135
1136 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1137 #define STRUCT_SPECIAL(name)
1138 #include "syscall_types.h"
1139 #undef STRUCT
1140 #undef STRUCT_SPECIAL
1141
1142 typedef struct IOCTLEntry {
1143 unsigned int target_cmd;
1144 unsigned int host_cmd;
1145 const char *name;
1146 int access;
1147 const argtype arg_type[5];
1148 } IOCTLEntry;
1149
1150 #define IOC_R 0x0001
1151 #define IOC_W 0x0002
1152 #define IOC_RW (IOC_R | IOC_W)
1153
1154 #define MAX_STRUCT_SIZE 4096
1155
1156 IOCTLEntry ioctl_entries[] = {
1157 #define IOCTL(cmd, access, types...) \
1158 { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1159 #include "ioctls.h"
1160 { 0, 0, },
1161 };
1162
1163 /* ??? Implement proper locking for ioctls. */
1164 static long do_ioctl(long fd, long cmd, long arg)
1165 {
1166 const IOCTLEntry *ie;
1167 const argtype *arg_type;
1168 long ret;
1169 uint8_t buf_temp[MAX_STRUCT_SIZE];
1170 int target_size;
1171 void *argptr;
1172
1173 ie = ioctl_entries;
1174 for(;;) {
1175 if (ie->target_cmd == 0) {
1176 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1177 return -ENOSYS;
1178 }
1179 if (ie->target_cmd == cmd)
1180 break;
1181 ie++;
1182 }
1183 arg_type = ie->arg_type;
1184 #if defined(DEBUG)
1185 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1186 #endif
1187 switch(arg_type[0]) {
1188 case TYPE_NULL:
1189 /* no argument */
1190 ret = get_errno(ioctl(fd, ie->host_cmd));
1191 break;
1192 case TYPE_PTRVOID:
1193 case TYPE_INT:
1194 /* int argment */
1195 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1196 break;
1197 case TYPE_PTR:
1198 arg_type++;
1199 target_size = thunk_type_size(arg_type, 0);
1200 switch(ie->access) {
1201 case IOC_R:
1202 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1203 if (!is_error(ret)) {
1204 argptr = lock_user(arg, target_size, 0);
1205 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1206 unlock_user(argptr, arg, target_size);
1207 }
1208 break;
1209 case IOC_W:
1210 argptr = lock_user(arg, target_size, 1);
1211 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1212 unlock_user(argptr, arg, 0);
1213 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1214 break;
1215 default:
1216 case IOC_RW:
1217 argptr = lock_user(arg, target_size, 1);
1218 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1219 unlock_user(argptr, arg, 0);
1220 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1221 if (!is_error(ret)) {
1222 argptr = lock_user(arg, target_size, 0);
1223 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1224 unlock_user(argptr, arg, target_size);
1225 }
1226 break;
1227 }
1228 break;
1229 default:
1230 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1231 ret = -ENOSYS;
1232 break;
1233 }
1234 return ret;
1235 }
1236
1237 bitmask_transtbl iflag_tbl[] = {
1238 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1239 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1240 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1241 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1242 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1243 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1244 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1245 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1246 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1247 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1248 { TARGET_IXON, TARGET_IXON, IXON, IXON },
1249 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1250 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1251 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1252 { 0, 0, 0, 0 }
1253 };
1254
1255 bitmask_transtbl oflag_tbl[] = {
1256 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1257 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1258 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1259 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1260 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1261 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1262 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1263 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1264 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1265 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1266 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1267 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1268 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1269 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1270 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1271 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1272 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1273 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1274 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1275 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1276 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1277 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1278 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1279 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1280 { 0, 0, 0, 0 }
1281 };
1282
1283 bitmask_transtbl cflag_tbl[] = {
1284 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1285 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1286 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1287 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1288 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1289 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1290 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1291 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1292 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1293 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1294 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1295 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1296 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1297 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1298 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1299 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1300 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1301 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1302 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1303 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1304 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1305 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1306 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1307 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1308 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1309 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1310 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1311 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1312 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1313 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1314 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1315 { 0, 0, 0, 0 }
1316 };
1317
1318 bitmask_transtbl lflag_tbl[] = {
1319 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1320 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1321 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1322 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1323 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1324 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1325 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1326 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1327 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1328 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1329 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1330 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1331 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1332 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1333 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1334 { 0, 0, 0, 0 }
1335 };
1336
1337 static void target_to_host_termios (void *dst, const void *src)
1338 {
1339 struct host_termios *host = dst;
1340 const struct target_termios *target = src;
1341
1342 host->c_iflag =
1343 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1344 host->c_oflag =
1345 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1346 host->c_cflag =
1347 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1348 host->c_lflag =
1349 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1350 host->c_line = target->c_line;
1351
1352 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1353 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1354 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1355 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1356 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1357 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1358 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1359 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1360 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1361 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1362 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1363 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1364 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1365 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1366 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1367 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1368 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1369 }
1370
1371 static void host_to_target_termios (void *dst, const void *src)
1372 {
1373 struct target_termios *target = dst;
1374 const struct host_termios *host = src;
1375
1376 target->c_iflag =
1377 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1378 target->c_oflag =
1379 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1380 target->c_cflag =
1381 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1382 target->c_lflag =
1383 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1384 target->c_line = host->c_line;
1385
1386 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1387 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1388 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1389 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1390 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1391 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1392 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1393 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1394 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1395 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1396 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1397 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1398 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1399 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1400 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1401 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1402 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1403 }
1404
1405 StructEntry struct_termios_def = {
1406 .convert = { host_to_target_termios, target_to_host_termios },
1407 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1408 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1409 };
1410
1411 static bitmask_transtbl mmap_flags_tbl[] = {
1412 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1413 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1414 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1415 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1416 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1417 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1418 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1419 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1420 { 0, 0, 0, 0 }
1421 };
1422
1423 static bitmask_transtbl fcntl_flags_tbl[] = {
1424 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
1425 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
1426 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
1427 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
1428 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
1429 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
1430 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
1431 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
1432 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
1433 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
1434 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1435 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
1436 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1437 #if defined(O_DIRECT)
1438 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
1439 #endif
1440 { 0, 0, 0, 0 }
1441 };
1442
1443 #if defined(TARGET_I386)
1444
1445 /* NOTE: there is really one LDT for all the threads */
1446 uint8_t *ldt_table;
1447
1448 static int read_ldt(target_ulong ptr, unsigned long bytecount)
1449 {
1450 int size;
1451 void *p;
1452
1453 if (!ldt_table)
1454 return 0;
1455 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1456 if (size > bytecount)
1457 size = bytecount;
1458 p = lock_user(ptr, size, 0);
1459 /* ??? Shoudl this by byteswapped? */
1460 memcpy(p, ldt_table, size);
1461 unlock_user(p, ptr, size);
1462 return size;
1463 }
1464
1465 /* XXX: add locking support */
1466 static int write_ldt(CPUX86State *env,
1467 target_ulong ptr, unsigned long bytecount, int oldmode)
1468 {
1469 struct target_modify_ldt_ldt_s ldt_info;
1470 struct target_modify_ldt_ldt_s *target_ldt_info;
1471 int seg_32bit, contents, read_exec_only, limit_in_pages;
1472 int seg_not_present, useable;
1473 uint32_t *lp, entry_1, entry_2;
1474
1475 if (bytecount != sizeof(ldt_info))
1476 return -EINVAL;
1477 lock_user_struct(target_ldt_info, ptr, 1);
1478 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1479 ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1480 ldt_info.limit = tswap32(target_ldt_info->limit);
1481 ldt_info.flags = tswap32(target_ldt_info->flags);
1482 unlock_user_struct(target_ldt_info, ptr, 0);
1483
1484 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1485 return -EINVAL;
1486 seg_32bit = ldt_info.flags & 1;
1487 contents = (ldt_info.flags >> 1) & 3;
1488 read_exec_only = (ldt_info.flags >> 3) & 1;
1489 limit_in_pages = (ldt_info.flags >> 4) & 1;
1490 seg_not_present = (ldt_info.flags >> 5) & 1;
1491 useable = (ldt_info.flags >> 6) & 1;
1492
1493 if (contents == 3) {
1494 if (oldmode)
1495 return -EINVAL;
1496 if (seg_not_present == 0)
1497 return -EINVAL;
1498 }
1499 /* allocate the LDT */
1500 if (!ldt_table) {
1501 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1502 if (!ldt_table)
1503 return -ENOMEM;
1504 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1505 env->ldt.base = h2g(ldt_table);
1506 env->ldt.limit = 0xffff;
1507 }
1508
1509 /* NOTE: same code as Linux kernel */
1510 /* Allow LDTs to be cleared by the user. */
1511 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1512 if (oldmode ||
1513 (contents == 0 &&
1514 read_exec_only == 1 &&
1515 seg_32bit == 0 &&
1516 limit_in_pages == 0 &&
1517 seg_not_present == 1 &&
1518 useable == 0 )) {
1519 entry_1 = 0;
1520 entry_2 = 0;
1521 goto install;
1522 }
1523 }
1524
1525 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1526 (ldt_info.limit & 0x0ffff);
1527 entry_2 = (ldt_info.base_addr & 0xff000000) |
1528 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1529 (ldt_info.limit & 0xf0000) |
1530 ((read_exec_only ^ 1) << 9) |
1531 (contents << 10) |
1532 ((seg_not_present ^ 1) << 15) |
1533 (seg_32bit << 22) |
1534 (limit_in_pages << 23) |
1535 0x7000;
1536 if (!oldmode)
1537 entry_2 |= (useable << 20);
1538
1539 /* Install the new entry ... */
1540 install:
1541 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1542 lp[0] = tswap32(entry_1);
1543 lp[1] = tswap32(entry_2);
1544 return 0;
1545 }
1546
1547 /* specific and weird i386 syscalls */
1548 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1549 {
1550 int ret = -ENOSYS;
1551
1552 switch (func) {
1553 case 0:
1554 ret = read_ldt(ptr, bytecount);
1555 break;
1556 case 1:
1557 ret = write_ldt(env, ptr, bytecount, 1);
1558 break;
1559 case 0x11:
1560 ret = write_ldt(env, ptr, bytecount, 0);
1561 break;
1562 }
1563 return ret;
1564 }
1565
1566 #endif /* defined(TARGET_I386) */
1567
1568 /* this stack is the equivalent of the kernel stack associated with a
1569 thread/process */
1570 #define NEW_STACK_SIZE 8192
1571
1572 static int clone_func(void *arg)
1573 {
1574 CPUState *env = arg;
1575 cpu_loop(env);
1576 /* never exits */
1577 return 0;
1578 }
1579
1580 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1581 {
1582 int ret;
1583 TaskState *ts;
1584 uint8_t *new_stack;
1585 CPUState *new_env;
1586
1587 if (flags & CLONE_VM) {
1588 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1589 memset(ts, 0, sizeof(TaskState));
1590 new_stack = ts->stack;
1591 ts->used = 1;
1592 /* add in task state list */
1593 ts->next = first_task_state;
1594 first_task_state = ts;
1595 /* we create a new CPU instance. */
1596 new_env = cpu_init();
1597 memcpy(new_env, env, sizeof(CPUState));
1598 #if defined(TARGET_I386)
1599 if (!newsp)
1600 newsp = env->regs[R_ESP];
1601 new_env->regs[R_ESP] = newsp;
1602 new_env->regs[R_EAX] = 0;
1603 #elif defined(TARGET_ARM)
1604 if (!newsp)
1605 newsp = env->regs[13];
1606 new_env->regs[13] = newsp;
1607 new_env->regs[0] = 0;
1608 #elif defined(TARGET_SPARC)
1609 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1610 #elif defined(TARGET_MIPS)
1611 printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1612 #elif defined(TARGET_PPC)
1613 if (!newsp)
1614 newsp = env->gpr[1];
1615 new_env->gpr[1] = newsp;
1616 {
1617 int i;
1618 for (i = 7; i < 32; i++)
1619 new_env->gpr[i] = 0;
1620 }
1621 #elif defined(TARGET_SH4)
1622 if (!newsp)
1623 newsp = env->gregs[15];
1624 new_env->gregs[15] = newsp;
1625 /* XXXXX */
1626 #else
1627 #error unsupported target CPU
1628 #endif
1629 new_env->opaque = ts;
1630 #ifdef __ia64__
1631 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1632 #else
1633 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1634 #endif
1635 } else {
1636 /* if no CLONE_VM, we consider it is a fork */
1637 if ((flags & ~CSIGNAL) != 0)
1638 return -EINVAL;
1639 ret = fork();
1640 }
1641 return ret;
1642 }
1643
1644 static long do_fcntl(int fd, int cmd, target_ulong arg)
1645 {
1646 struct flock fl;
1647 struct target_flock *target_fl;
1648 long ret;
1649
1650 switch(cmd) {
1651 case TARGET_F_GETLK:
1652 ret = fcntl(fd, cmd, &fl);
1653 if (ret == 0) {
1654 lock_user_struct(target_fl, arg, 0);
1655 target_fl->l_type = tswap16(fl.l_type);
1656 target_fl->l_whence = tswap16(fl.l_whence);
1657 target_fl->l_start = tswapl(fl.l_start);
1658 target_fl->l_len = tswapl(fl.l_len);
1659 target_fl->l_pid = tswapl(fl.l_pid);
1660 unlock_user_struct(target_fl, arg, 1);
1661 }
1662 break;
1663
1664 case TARGET_F_SETLK:
1665 case TARGET_F_SETLKW:
1666 lock_user_struct(target_fl, arg, 1);
1667 fl.l_type = tswap16(target_fl->l_type);
1668 fl.l_whence = tswap16(target_fl->l_whence);
1669 fl.l_start = tswapl(target_fl->l_start);
1670 fl.l_len = tswapl(target_fl->l_len);
1671 fl.l_pid = tswapl(target_fl->l_pid);
1672 unlock_user_struct(target_fl, arg, 0);
1673 ret = fcntl(fd, cmd, &fl);
1674 break;
1675
1676 case TARGET_F_GETLK64:
1677 case TARGET_F_SETLK64:
1678 case TARGET_F_SETLKW64:
1679 ret = -1;
1680 errno = EINVAL;
1681 break;
1682
1683 case F_GETFL:
1684 ret = fcntl(fd, cmd, arg);
1685 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1686 break;
1687
1688 case F_SETFL:
1689 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1690 break;
1691
1692 default:
1693 ret = fcntl(fd, cmd, arg);
1694 break;
1695 }
1696 return ret;
1697 }
1698
1699 #ifdef USE_UID16
1700
1701 static inline int high2lowuid(int uid)
1702 {
1703 if (uid > 65535)
1704 return 65534;
1705 else
1706 return uid;
1707 }
1708
1709 static inline int high2lowgid(int gid)
1710 {
1711 if (gid > 65535)
1712 return 65534;
1713 else
1714 return gid;
1715 }
1716
1717 static inline int low2highuid(int uid)
1718 {
1719 if ((int16_t)uid == -1)
1720 return -1;
1721 else
1722 return uid;
1723 }
1724
1725 static inline int low2highgid(int gid)
1726 {
1727 if ((int16_t)gid == -1)
1728 return -1;
1729 else
1730 return gid;
1731 }
1732
1733 #endif /* USE_UID16 */
1734
1735 void syscall_init(void)
1736 {
1737 IOCTLEntry *ie;
1738 const argtype *arg_type;
1739 int size;
1740
1741 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1742 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1743 #include "syscall_types.h"
1744 #undef STRUCT
1745 #undef STRUCT_SPECIAL
1746
1747 /* we patch the ioctl size if necessary. We rely on the fact that
1748 no ioctl has all the bits at '1' in the size field */
1749 ie = ioctl_entries;
1750 while (ie->target_cmd != 0) {
1751 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1752 TARGET_IOC_SIZEMASK) {
1753 arg_type = ie->arg_type;
1754 if (arg_type[0] != TYPE_PTR) {
1755 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1756 ie->target_cmd);
1757 exit(1);
1758 }
1759 arg_type++;
1760 size = thunk_type_size(arg_type, 0);
1761 ie->target_cmd = (ie->target_cmd &
1762 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1763 (size << TARGET_IOC_SIZESHIFT);
1764 }
1765 /* automatic consistency check if same arch */
1766 #if defined(__i386__) && defined(TARGET_I386)
1767 if (ie->target_cmd != ie->host_cmd) {
1768 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1769 ie->target_cmd, ie->host_cmd);
1770 }
1771 #endif
1772 ie++;
1773 }
1774 }
1775
1776 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1777 {
1778 #ifdef TARGET_WORDS_BIG_ENDIAN
1779 return ((uint64_t)word0 << 32) | word1;
1780 #else
1781 return ((uint64_t)word1 << 32) | word0;
1782 #endif
1783 }
1784
1785 #ifdef TARGET_NR_truncate64
1786 static inline long target_truncate64(void *cpu_env, const char *arg1,
1787 long arg2, long arg3, long arg4)
1788 {
1789 #ifdef TARGET_ARM
1790 if (((CPUARMState *)cpu_env)->eabi)
1791 {
1792 arg2 = arg3;
1793 arg3 = arg4;
1794 }
1795 #endif
1796 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1797 }
1798 #endif
1799
1800 #ifdef TARGET_NR_ftruncate64
1801 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1802 long arg3, long arg4)
1803 {
1804 #ifdef TARGET_ARM
1805 if (((CPUARMState *)cpu_env)->eabi)
1806 {
1807 arg2 = arg3;
1808 arg3 = arg4;
1809 }
1810 #endif
1811 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1812 }
1813 #endif
1814
1815 static inline void target_to_host_timespec(struct timespec *host_ts,
1816 target_ulong target_addr)
1817 {
1818 struct target_timespec *target_ts;
1819
1820 lock_user_struct(target_ts, target_addr, 1);
1821 host_ts->tv_sec = tswapl(target_ts->tv_sec);
1822 host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1823 unlock_user_struct(target_ts, target_addr, 0);
1824 }
1825
1826 static inline void host_to_target_timespec(target_ulong target_addr,
1827 struct timespec *host_ts)
1828 {
1829 struct target_timespec *target_ts;
1830
1831 lock_user_struct(target_ts, target_addr, 0);
1832 target_ts->tv_sec = tswapl(host_ts->tv_sec);
1833 target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
1834 unlock_user_struct(target_ts, target_addr, 1);
1835 }
1836
1837 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1838 long arg4, long arg5, long arg6)
1839 {
1840 long ret;
1841 struct stat st;
1842 struct statfs stfs;
1843 void *p;
1844
1845 #ifdef DEBUG
1846 gemu_log("syscall %d", num);
1847 #endif
1848 switch(num) {
1849 case TARGET_NR_exit:
1850 #ifdef HAVE_GPROF
1851 _mcleanup();
1852 #endif
1853 gdb_exit(cpu_env, arg1);
1854 /* XXX: should free thread stack and CPU env */
1855 _exit(arg1);
1856 ret = 0; /* avoid warning */
1857 break;
1858 case TARGET_NR_read:
1859 page_unprotect_range(arg2, arg3);
1860 p = lock_user(arg2, arg3, 0);
1861 ret = get_errno(read(arg1, p, arg3));
1862 unlock_user(p, arg2, ret);
1863 break;
1864 case TARGET_NR_write:
1865 p = lock_user(arg2, arg3, 1);
1866 ret = get_errno(write(arg1, p, arg3));
1867 unlock_user(p, arg2, 0);
1868 break;
1869 case TARGET_NR_open:
1870 p = lock_user_string(arg1);
1871 ret = get_errno(open(path(p),
1872 target_to_host_bitmask(arg2, fcntl_flags_tbl),
1873 arg3));
1874 unlock_user(p, arg1, 0);
1875 break;
1876 case TARGET_NR_close:
1877 ret = get_errno(close(arg1));
1878 break;
1879 case TARGET_NR_brk:
1880 ret = do_brk(arg1);
1881 break;
1882 case TARGET_NR_fork:
1883 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1884 break;
1885 case TARGET_NR_waitpid:
1886 {
1887 int status;
1888 ret = get_errno(waitpid(arg1, &status, arg3));
1889 if (!is_error(ret) && arg2)
1890 tput32(arg2, status);
1891 }
1892 break;
1893 case TARGET_NR_creat:
1894 p = lock_user_string(arg1);
1895 ret = get_errno(creat(p, arg2));
1896 unlock_user(p, arg1, 0);
1897 break;
1898 case TARGET_NR_link:
1899 {
1900 void * p2;
1901 p = lock_user_string(arg1);
1902 p2 = lock_user_string(arg2);
1903 ret = get_errno(link(p, p2));
1904 unlock_user(p2, arg2, 0);
1905 unlock_user(p, arg1, 0);
1906 }
1907 break;
1908 case TARGET_NR_unlink:
1909 p = lock_user_string(arg1);
1910 ret = get_errno(unlink(p));
1911 unlock_user(p, arg1, 0);
1912 break;
1913 case TARGET_NR_execve:
1914 {
1915 char **argp, **envp;
1916 int argc, envc;
1917 target_ulong gp;
1918 target_ulong guest_argp;
1919 target_ulong guest_envp;
1920 target_ulong addr;
1921 char **q;
1922
1923 argc = 0;
1924 guest_argp = arg2;
1925 for (gp = guest_argp; tgetl(gp); gp++)
1926 argc++;
1927 envc = 0;
1928 guest_envp = arg3;
1929 for (gp = guest_envp; tgetl(gp); gp++)
1930 envc++;
1931
1932 argp = alloca((argc + 1) * sizeof(void *));
1933 envp = alloca((envc + 1) * sizeof(void *));
1934
1935 for (gp = guest_argp, q = argp; ;
1936 gp += sizeof(target_ulong), q++) {
1937 addr = tgetl(gp);
1938 if (!addr)
1939 break;
1940 *q = lock_user_string(addr);
1941 }
1942 *q = NULL;
1943
1944 for (gp = guest_envp, q = envp; ;
1945 gp += sizeof(target_ulong), q++) {
1946 addr = tgetl(gp);
1947 if (!addr)
1948 break;
1949 *q = lock_user_string(addr);
1950 }
1951 *q = NULL;
1952
1953 p = lock_user_string(arg1);
1954 ret = get_errno(execve(p, argp, envp));
1955 unlock_user(p, arg1, 0);
1956
1957 for (gp = guest_argp, q = argp; *q;
1958 gp += sizeof(target_ulong), q++) {
1959 addr = tgetl(gp);
1960 unlock_user(*q, addr, 0);
1961 }
1962 for (gp = guest_envp, q = envp; *q;
1963 gp += sizeof(target_ulong), q++) {
1964 addr = tgetl(gp);
1965 unlock_user(*q, addr, 0);
1966 }
1967 }
1968 break;
1969 case TARGET_NR_chdir:
1970 p = lock_user_string(arg1);
1971 ret = get_errno(chdir(p));
1972 unlock_user(p, arg1, 0);
1973 break;
1974 #ifdef TARGET_NR_time
1975 case TARGET_NR_time:
1976 {
1977 time_t host_time;
1978 ret = get_errno(time(&host_time));
1979 if (!is_error(ret) && arg1)
1980 tputl(arg1, host_time);
1981 }
1982 break;
1983 #endif
1984 case TARGET_NR_mknod:
1985 p = lock_user_string(arg1);
1986 ret = get_errno(mknod(p, arg2, arg3));
1987 unlock_user(p, arg1, 0);
1988 break;
1989 case TARGET_NR_chmod:
1990 p = lock_user_string(arg1);
1991 ret = get_errno(chmod(p, arg2));
1992 unlock_user(p, arg1, 0);
1993 break;
1994 #ifdef TARGET_NR_break
1995 case TARGET_NR_break:
1996 goto unimplemented;
1997 #endif
1998 #ifdef TARGET_NR_oldstat
1999 case TARGET_NR_oldstat:
2000 goto unimplemented;
2001 #endif
2002 case TARGET_NR_lseek:
2003 ret = get_errno(lseek(arg1, arg2, arg3));
2004 break;
2005 case TARGET_NR_getpid:
2006 ret = get_errno(getpid());
2007 break;
2008 case TARGET_NR_mount:
2009 /* need to look at the data field */
2010 goto unimplemented;
2011 case TARGET_NR_umount:
2012 p = lock_user_string(arg1);
2013 ret = get_errno(umount(p));
2014 unlock_user(p, arg1, 0);
2015 break;
2016 case TARGET_NR_stime:
2017 {
2018 time_t host_time;
2019 host_time = tgetl(arg1);
2020 ret = get_errno(stime(&host_time));
2021 }
2022 break;
2023 case TARGET_NR_ptrace:
2024 goto unimplemented;
2025 case TARGET_NR_alarm:
2026 ret = alarm(arg1);
2027 break;
2028 #ifdef TARGET_NR_oldfstat
2029 case TARGET_NR_oldfstat:
2030 goto unimplemented;
2031 #endif
2032 case TARGET_NR_pause:
2033 ret = get_errno(pause());
2034 break;
2035 case TARGET_NR_utime:
2036 {
2037 struct utimbuf tbuf, *host_tbuf;
2038 struct target_utimbuf *target_tbuf;
2039 if (arg2) {
2040 lock_user_struct(target_tbuf, arg2, 1);
2041 tbuf.actime = tswapl(target_tbuf->actime);
2042 tbuf.modtime = tswapl(target_tbuf->modtime);
2043 unlock_user_struct(target_tbuf, arg2, 0);
2044 host_tbuf = &tbuf;
2045 } else {
2046 host_tbuf = NULL;
2047 }
2048 p = lock_user_string(arg1);
2049 ret = get_errno(utime(p, host_tbuf));
2050 unlock_user(p, arg1, 0);
2051 }
2052 break;
2053 case TARGET_NR_utimes:
2054 {
2055 struct timeval *tvp, tv[2];
2056 if (arg2) {
2057 target_to_host_timeval(&tv[0], arg2);
2058 target_to_host_timeval(&tv[1],
2059 arg2 + sizeof (struct target_timeval));
2060 tvp = tv;
2061 } else {
2062 tvp = NULL;
2063 }
2064 p = lock_user_string(arg1);
2065 ret = get_errno(utimes(p, tvp));
2066 unlock_user(p, arg1, 0);
2067 }
2068 break;
2069 #ifdef TARGET_NR_stty
2070 case TARGET_NR_stty:
2071 goto unimplemented;
2072 #endif
2073 #ifdef TARGET_NR_gtty
2074 case TARGET_NR_gtty:
2075 goto unimplemented;
2076 #endif
2077 case TARGET_NR_access:
2078 p = lock_user_string(arg1);
2079 ret = get_errno(access(p, arg2));
2080 unlock_user(p, arg1, 0);
2081 break;
2082 case TARGET_NR_nice:
2083 ret = get_errno(nice(arg1));
2084 break;
2085 #ifdef TARGET_NR_ftime
2086 case TARGET_NR_ftime:
2087 goto unimplemented;
2088 #endif
2089 case TARGET_NR_sync:
2090 sync();
2091 ret = 0;
2092 break;
2093 case TARGET_NR_kill:
2094 ret = get_errno(kill(arg1, arg2));
2095 break;
2096 case TARGET_NR_rename:
2097 {
2098 void *p2;
2099 p = lock_user_string(arg1);
2100 p2 = lock_user_string(arg2);
2101 ret = get_errno(rename(p, p2));
2102 unlock_user(p2, arg2, 0);
2103 unlock_user(p, arg1, 0);
2104 }
2105 break;
2106 case TARGET_NR_mkdir:
2107 p = lock_user_string(arg1);
2108 ret = get_errno(mkdir(p, arg2));
2109 unlock_user(p, arg1, 0);
2110 break;
2111 case TARGET_NR_rmdir:
2112 p = lock_user_string(arg1);
2113 ret = get_errno(rmdir(p));
2114 unlock_user(p, arg1, 0);
2115 break;
2116 case TARGET_NR_dup:
2117 ret = get_errno(dup(arg1));
2118 break;
2119 case TARGET_NR_pipe:
2120 {
2121 int host_pipe[2];
2122 ret = get_errno(pipe(host_pipe));
2123 if (!is_error(ret)) {
2124 tput32(arg1, host_pipe[0]);
2125 tput32(arg1 + 4, host_pipe[1]);
2126 }
2127 }
2128 break;
2129 case TARGET_NR_times:
2130 {
2131 struct target_tms *tmsp;
2132 struct tms tms;
2133 ret = get_errno(times(&tms));
2134 if (arg1) {
2135 tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2136 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2137 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2138 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2139 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2140 }
2141 if (!is_error(ret))
2142 ret = host_to_target_clock_t(ret);
2143 }
2144 break;
2145 #ifdef TARGET_NR_prof
2146 case TARGET_NR_prof:
2147 goto unimplemented;
2148 #endif
2149 case TARGET_NR_signal:
2150 goto unimplemented;
2151
2152 case TARGET_NR_acct:
2153 p = lock_user_string(arg1);
2154 ret = get_errno(acct(path(p)));
2155 unlock_user(p, arg1, 0);
2156 break;
2157 case TARGET_NR_umount2:
2158 p = lock_user_string(arg1);
2159 ret = get_errno(umount2(p, arg2));
2160 unlock_user(p, arg1, 0);
2161 break;
2162 #ifdef TARGET_NR_lock
2163 case TARGET_NR_lock:
2164 goto unimplemented;
2165 #endif
2166 case TARGET_NR_ioctl:
2167 ret = do_ioctl(arg1, arg2, arg3);
2168 break;
2169 case TARGET_NR_fcntl:
2170 ret = get_errno(do_fcntl(arg1, arg2, arg3));
2171 break;
2172 #ifdef TARGET_NR_mpx
2173 case TARGET_NR_mpx:
2174 goto unimplemented;
2175 #endif
2176 case TARGET_NR_setpgid:
2177 ret = get_errno(setpgid(arg1, arg2));
2178 break;
2179 #ifdef TARGET_NR_ulimit
2180 case TARGET_NR_ulimit:
2181 goto unimplemented;
2182 #endif
2183 #ifdef TARGET_NR_oldolduname
2184 case TARGET_NR_oldolduname:
2185 goto unimplemented;
2186 #endif
2187 case TARGET_NR_umask:
2188 ret = get_errno(umask(arg1));
2189 break;
2190 case TARGET_NR_chroot:
2191 p = lock_user_string(arg1);
2192 ret = get_errno(chroot(p));
2193 unlock_user(p, arg1, 0);
2194 break;
2195 case TARGET_NR_ustat:
2196 goto unimplemented;
2197 case TARGET_NR_dup2:
2198 ret = get_errno(dup2(arg1, arg2));
2199 break;
2200 case TARGET_NR_getppid:
2201 ret = get_errno(getppid());
2202 break;
2203 case TARGET_NR_getpgrp:
2204 ret = get_errno(getpgrp());
2205 break;
2206 case TARGET_NR_setsid:
2207 ret = get_errno(setsid());
2208 break;
2209 case TARGET_NR_sigaction:
2210 {
2211 struct target_old_sigaction *old_act;
2212 struct target_sigaction act, oact, *pact;
2213 if (arg2) {
2214 lock_user_struct(old_act, arg2, 1);
2215 act._sa_handler = old_act->_sa_handler;
2216 target_siginitset(&act.sa_mask, old_act->sa_mask);
2217 act.sa_flags = old_act->sa_flags;
2218 act.sa_restorer = old_act->sa_restorer;
2219 unlock_user_struct(old_act, arg2, 0);
2220 pact = &act;
2221 } else {
2222 pact = NULL;
2223 }
2224 ret = get_errno(do_sigaction(arg1, pact, &oact));
2225 if (!is_error(ret) && arg3) {
2226 lock_user_struct(old_act, arg3, 0);
2227 old_act->_sa_handler = oact._sa_handler;
2228 old_act->sa_mask = oact.sa_mask.sig[0];
2229 old_act->sa_flags = oact.sa_flags;
2230 old_act->sa_restorer = oact.sa_restorer;
2231 unlock_user_struct(old_act, arg3, 1);
2232 }
2233 }
2234 break;
2235 case TARGET_NR_rt_sigaction:
2236 {
2237 struct target_sigaction *act;
2238 struct target_sigaction *oact;
2239
2240 if (arg2)
2241 lock_user_struct(act, arg2, 1);
2242 else
2243 act = NULL;
2244 if (arg3)
2245 lock_user_struct(oact, arg3, 0);
2246 else
2247 oact = NULL;
2248 ret = get_errno(do_sigaction(arg1, act, oact));
2249 if (arg2)
2250 unlock_user_struct(act, arg2, 0);
2251 if (arg3)
2252 unlock_user_struct(oact, arg3, 1);
2253 }
2254 break;
2255 case TARGET_NR_sgetmask:
2256 {
2257 sigset_t cur_set;
2258 target_ulong target_set;
2259 sigprocmask(0, NULL, &cur_set);
2260 host_to_target_old_sigset(&target_set, &cur_set);
2261 ret = target_set;
2262 }
2263 break;
2264 case TARGET_NR_ssetmask:
2265 {
2266 sigset_t set, oset, cur_set;
2267 target_ulong target_set = arg1;
2268 sigprocmask(0, NULL, &cur_set);
2269 target_to_host_old_sigset(&set, &target_set);
2270 sigorset(&set, &set, &cur_set);
2271 sigprocmask(SIG_SETMASK, &set, &oset);
2272 host_to_target_old_sigset(&target_set, &oset);
2273 ret = target_set;
2274 }
2275 break;
2276 case TARGET_NR_sigprocmask:
2277 {
2278 int how = arg1;
2279 sigset_t set, oldset, *set_ptr;
2280
2281 if (arg2) {
2282 switch(how) {
2283 case TARGET_SIG_BLOCK:
2284 how = SIG_BLOCK;
2285 break;
2286 case TARGET_SIG_UNBLOCK:
2287 how = SIG_UNBLOCK;
2288 break;
2289 case TARGET_SIG_SETMASK:
2290 how = SIG_SETMASK;
2291 break;
2292 default:
2293 ret = -EINVAL;
2294 goto fail;
2295 }
2296 p = lock_user(arg2, sizeof(target_sigset_t), 1);
2297 target_to_host_old_sigset(&set, p);
2298 unlock_user(p, arg2, 0);
2299 set_ptr = &set;
2300 } else {
2301 how = 0;
2302 set_ptr = NULL;
2303 }
2304 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2305 if (!is_error(ret) && arg3) {
2306 p = lock_user(arg3, sizeof(target_sigset_t), 0);
2307 host_to_target_old_sigset(p, &oldset);
2308 unlock_user(p, arg3, sizeof(target_sigset_t));
2309 }
2310 }
2311 break;
2312 case TARGET_NR_rt_sigprocmask:
2313 {
2314 int how = arg1;
2315 sigset_t set, oldset, *set_ptr;
2316
2317 if (arg2) {
2318 switch(how) {
2319 case TARGET_SIG_BLOCK:
2320 how = SIG_BLOCK;
2321 break;
2322 case TARGET_SIG_UNBLOCK:
2323 how = SIG_UNBLOCK;
2324 break;
2325 case TARGET_SIG_SETMASK:
2326 how = SIG_SETMASK;
2327 break;
2328 default:
2329 ret = -EINVAL;
2330 goto fail;
2331 }
2332 p = lock_user(arg2, sizeof(target_sigset_t), 1);
2333 target_to_host_sigset(&set, p);
2334 unlock_user(p, arg2, 0);
2335 set_ptr = &set;
2336 } else {
2337 how = 0;
2338 set_ptr = NULL;
2339 }
2340 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2341 if (!is_error(ret) && arg3) {
2342 p = lock_user(arg3, sizeof(target_sigset_t), 0);
2343 host_to_target_sigset(p, &oldset);
2344 unlock_user(p, arg3, sizeof(target_sigset_t));
2345 }
2346 }
2347 break;
2348 case TARGET_NR_sigpending:
2349 {
2350 sigset_t set;
2351 ret = get_errno(sigpending(&set));
2352 if (!is_error(ret)) {
2353 p = lock_user(arg1, sizeof(target_sigset_t), 0);
2354 host_to_target_old_sigset(p, &set);
2355 unlock_user(p, arg1, sizeof(target_sigset_t));
2356 }
2357 }
2358 break;
2359 case TARGET_NR_rt_sigpending:
2360 {
2361 sigset_t set;
2362 ret = get_errno(sigpending(&set));
2363 if (!is_error(ret)) {
2364 p = lock_user(arg1, sizeof(target_sigset_t), 0);
2365 host_to_target_sigset(p, &set);
2366 unlock_user(p, arg1, sizeof(target_sigset_t));
2367 }
2368 }
2369 break;
2370 case TARGET_NR_sigsuspend:
2371 {
2372 sigset_t set;
2373 p = lock_user(arg1, sizeof(target_sigset_t), 1);
2374 target_to_host_old_sigset(&set, p);
2375 unlock_user(p, arg1, 0);
2376 ret = get_errno(sigsuspend(&set));
2377 }
2378 break;
2379 case TARGET_NR_rt_sigsuspend:
2380 {
2381 sigset_t set;
2382 p = lock_user(arg1, sizeof(target_sigset_t), 1);
2383 target_to_host_sigset(&set, p);
2384 unlock_user(p, arg1, 0);
2385 ret = get_errno(sigsuspend(&set));
2386 }
2387 break;
2388 case TARGET_NR_rt_sigtimedwait:
2389 {
2390 sigset_t set;
2391 struct timespec uts, *puts;
2392 siginfo_t uinfo;
2393
2394 p = lock_user(arg1, sizeof(target_sigset_t), 1);
2395 target_to_host_sigset(&set, p);
2396 unlock_user(p, arg1, 0);
2397 if (arg3) {
2398 puts = &uts;
2399 target_to_host_timespec(puts, arg3);
2400 } else {
2401 puts = NULL;
2402 }
2403 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2404 if (!is_error(ret) && arg2) {
2405 p = lock_user(arg2, sizeof(target_sigset_t), 0);
2406 host_to_target_siginfo(p, &uinfo);
2407 unlock_user(p, arg2, sizeof(target_sigset_t));
2408 }
2409 }
2410 break;
2411 case TARGET_NR_rt_sigqueueinfo:
2412 {
2413 siginfo_t uinfo;
2414 p = lock_user(arg3, sizeof(target_sigset_t), 1);
2415 target_to_host_siginfo(&uinfo, p);
2416 unlock_user(p, arg1, 0);
2417 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2418 }
2419 break;
2420 case TARGET_NR_sigreturn:
2421 /* NOTE: ret is eax, so not transcoding must be done */
2422 ret = do_sigreturn(cpu_env);
2423 break;
2424 case TARGET_NR_rt_sigreturn:
2425 /* NOTE: ret is eax, so not transcoding must be done */
2426 ret = do_rt_sigreturn(cpu_env);
2427 break;
2428 case TARGET_NR_sethostname:
2429 p = lock_user_string(arg1);
2430 ret = get_errno(sethostname(p, arg2));
2431 unlock_user(p, arg1, 0);
2432 break;
2433 case TARGET_NR_setrlimit:
2434 {
2435 /* XXX: convert resource ? */
2436 int resource = arg1;
2437 struct target_rlimit *target_rlim;
2438 struct rlimit rlim;
2439 lock_user_struct(target_rlim, arg2, 1);
2440 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2441 rlim.rlim_max = tswapl(target_rlim->rlim_max);
2442 unlock_user_struct(target_rlim, arg2, 0);
2443 ret = get_errno(setrlimit(resource, &rlim));
2444 }
2445 break;
2446 case TARGET_NR_getrlimit:
2447 {
2448 /* XXX: convert resource ? */
2449 int resource = arg1;
2450 struct target_rlimit *target_rlim;
2451 struct rlimit rlim;
2452
2453 ret = get_errno(getrlimit(resource, &rlim));
2454 if (!is_error(ret)) {
2455 lock_user_struct(target_rlim, arg2, 0);
2456 rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2457 rlim.rlim_max = tswapl(target_rlim->rlim_max);
2458 unlock_user_struct(target_rlim, arg2, 1);
2459 }
2460 }
2461 break;
2462 case TARGET_NR_getrusage:
2463 {
2464 struct rusage rusage;
2465 ret = get_errno(getrusage(arg1, &rusage));
2466 if (!is_error(ret)) {
2467 host_to_target_rusage(arg2, &rusage);
2468 }
2469 }
2470 break;
2471 case TARGET_NR_gettimeofday:
2472 {
2473 struct timeval tv;
2474 ret = get_errno(gettimeofday(&tv, NULL));
2475 if (!is_error(ret)) {
2476 host_to_target_timeval(arg1, &tv);
2477 }
2478 }
2479 break;
2480 case TARGET_NR_settimeofday:
2481 {
2482 struct timeval tv;
2483 target_to_host_timeval(&tv, arg1);
2484 ret = get_errno(settimeofday(&tv, NULL));
2485 }
2486 break;
2487 #ifdef TARGET_NR_select
2488 case TARGET_NR_select:
2489 {
2490 struct target_sel_arg_struct *sel;
2491 target_ulong inp, outp, exp, tvp;
2492 long nsel;
2493
2494 lock_user_struct(sel, arg1, 1);
2495 nsel = tswapl(sel->n);
2496 inp = tswapl(sel->inp);
2497 outp = tswapl(sel->outp);
2498 exp = tswapl(sel->exp);
2499 tvp = tswapl(sel->tvp);
2500 unlock_user_struct(sel, arg1, 0);
2501 ret = do_select(nsel, inp, outp, exp, tvp);
2502 }
2503 break;
2504 #endif
2505 case TARGET_NR_symlink:
2506 {
2507 void *p2;
2508 p = lock_user_string(arg1);
2509 p2 = lock_user_string(arg2);
2510 ret = get_errno(symlink(p, p2));
2511 unlock_user(p2, arg2, 0);
2512 unlock_user(p, arg1, 0);
2513 }
2514 break;
2515 #ifdef TARGET_NR_oldlstat
2516 case TARGET_NR_oldlstat:
2517 goto unimplemented;
2518 #endif
2519 case TARGET_NR_readlink:
2520 {
2521 void *p2;
2522 p = lock_user_string(arg1);
2523 p2 = lock_user(arg2, arg3, 0);
2524 ret = get_errno(readlink(path(p), p2, arg3));
2525 unlock_user(p2, arg2, ret);
2526 unlock_user(p, arg1, 0);
2527 }
2528 break;
2529 case TARGET_NR_uselib:
2530 goto unimplemented;
2531 case TARGET_NR_swapon:
2532 p = lock_user_string(arg1);
2533 ret = get_errno(swapon(p, arg2));
2534 unlock_user(p, arg1, 0);
2535 break;
2536 case TARGET_NR_reboot:
2537 goto unimplemented;
2538 case TARGET_NR_readdir:
2539 goto unimplemented;
2540 case TARGET_NR_mmap:
2541 #if defined(TARGET_I386) || defined(TARGET_ARM)
2542 {
2543 target_ulong *v;
2544 target_ulong v1, v2, v3, v4, v5, v6;
2545 v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2546 v1 = tswapl(v[0]);
2547 v2 = tswapl(v[1]);
2548 v3 = tswapl(v[2]);
2549 v4 = tswapl(v[3]);
2550 v5 = tswapl(v[4]);
2551 v6 = tswapl(v[5]);
2552 unlock_user(v, arg1, 0);
2553 ret = get_errno(target_mmap(v1, v2, v3,
2554 target_to_host_bitmask(v4, mmap_flags_tbl),
2555 v5, v6));
2556 }
2557 #else
2558 ret = get_errno(target_mmap(arg1, arg2, arg3,
2559 target_to_host_bitmask(arg4, mmap_flags_tbl),
2560 arg5,
2561 arg6));
2562 #endif
2563 break;
2564 #ifdef TARGET_NR_mmap2
2565 case TARGET_NR_mmap2:
2566 #if defined(TARGET_SPARC)
2567 #define MMAP_SHIFT 12
2568 #else
2569 #define MMAP_SHIFT TARGET_PAGE_BITS
2570 #endif
2571 ret = get_errno(target_mmap(arg1, arg2, arg3,
2572 target_to_host_bitmask(arg4, mmap_flags_tbl),
2573 arg5,
2574 arg6 << MMAP_SHIFT));
2575 break;
2576 #endif
2577 case TARGET_NR_munmap:
2578 ret = get_errno(target_munmap(arg1, arg2));
2579 break;
2580 case TARGET_NR_mprotect:
2581 ret = get_errno(target_mprotect(arg1, arg2, arg3));
2582 break;
2583 case TARGET_NR_mremap:
2584 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2585 break;
2586 /* ??? msync/mlock/munlock are broken for softmmu. */
2587 case TARGET_NR_msync:
2588 ret = get_errno(msync(g2h(arg1), arg2, arg3));
2589 break;
2590 case TARGET_NR_mlock:
2591 ret = get_errno(mlock(g2h(arg1), arg2));
2592 break;
2593 case TARGET_NR_munlock:
2594 ret = get_errno(munlock(g2h(arg1), arg2));
2595 break;
2596 case TARGET_NR_mlockall:
2597 ret = get_errno(mlockall(arg1));
2598 break;
2599 case TARGET_NR_munlockall:
2600 ret = get_errno(munlockall());
2601 break;
2602 case TARGET_NR_truncate:
2603 p = lock_user_string(arg1);
2604 ret = get_errno(truncate(p, arg2));
2605 unlock_user(p, arg1, 0);
2606 break;
2607 case TARGET_NR_ftruncate:
2608 ret = get_errno(ftruncate(arg1, arg2));
2609 break;
2610 case TARGET_NR_fchmod:
2611 ret = get_errno(fchmod(arg1, arg2));
2612 break;
2613 case TARGET_NR_getpriority:
2614 ret = get_errno(getpriority(arg1, arg2));
2615 break;
2616 case TARGET_NR_setpriority:
2617 ret = get_errno(setpriority(arg1, arg2, arg3));
2618 break;
2619 #ifdef TARGET_NR_profil
2620 case TARGET_NR_profil:
2621 goto unimplemented;
2622 #endif
2623 case TARGET_NR_statfs:
2624 p = lock_user_string(arg1);
2625 ret = get_errno(statfs(path(p), &stfs));
2626 unlock_user(p, arg1, 0);
2627 convert_statfs:
2628 if (!is_error(ret)) {
2629 struct target_statfs *target_stfs;
2630
2631 lock_user_struct(target_stfs, arg2, 0);
2632 /* ??? put_user is probably wrong. */
2633 put_user(stfs.f_type, &target_stfs->f_type);
2634 put_user(stfs.f_bsize, &target_stfs->f_bsize);
2635 put_user(stfs.f_blocks, &target_stfs->f_blocks);
2636 put_user(stfs.f_bfree, &target_stfs->f_bfree);
2637 put_user(stfs.f_bavail, &target_stfs->f_bavail);
2638 put_user(stfs.f_files, &target_stfs->f_files);
2639 put_user(stfs.f_ffree, &target_stfs->f_ffree);
2640 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2641 put_user(stfs.f_namelen, &target_stfs->f_namelen);
2642 unlock_user_struct(target_stfs, arg2, 1);
2643 }
2644 break;
2645 case TARGET_NR_fstatfs:
2646 ret = get_errno(fstatfs(arg1, &stfs));
2647 goto convert_statfs;
2648 #ifdef TARGET_NR_statfs64
2649 case TARGET_NR_statfs64:
2650 p = lock_user_string(arg1);
2651 ret = get_errno(statfs(path(p), &stfs));
2652 unlock_user(p, arg1, 0);
2653 convert_statfs64:
2654 if (!is_error(ret)) {
2655 struct target_statfs64 *target_stfs;
2656
2657 lock_user_struct(target_stfs, arg3, 0);
2658 /* ??? put_user is probably wrong. */
2659 put_user(stfs.f_type, &target_stfs->f_type);
2660 put_user(stfs.f_bsize, &target_stfs->f_bsize);
2661 put_user(stfs.f_blocks, &target_stfs->f_blocks);
2662 put_user(stfs.f_bfree, &target_stfs->f_bfree);
2663 put_user(stfs.f_bavail, &target_stfs->f_bavail);
2664 put_user(stfs.f_files, &target_stfs->f_files);
2665 put_user(stfs.f_ffree, &target_stfs->f_ffree);
2666 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2667 put_user(stfs.f_namelen, &target_stfs->f_namelen);
2668 unlock_user_struct(target_stfs, arg3, 0);
2669 }
2670 break;
2671 case TARGET_NR_fstatfs64:
2672 ret = get_errno(fstatfs(arg1, &stfs));
2673 goto convert_statfs64;
2674 #endif
2675 #ifdef TARGET_NR_ioperm
2676 case TARGET_NR_ioperm:
2677 goto unimplemented;
2678 #endif
2679 case TARGET_NR_socketcall:
2680 ret = do_socketcall(arg1, arg2);
2681 break;
2682 case TARGET_NR_syslog:
2683 goto unimplemented;
2684 case TARGET_NR_setitimer:
2685 {
2686 struct itimerval value, ovalue, *pvalue;
2687
2688 if (arg2) {
2689 pvalue = &value;
2690 target_to_host_timeval(&pvalue->it_interval,
2691 arg2);
2692 target_to_host_timeval(&pvalue->it_value,
2693 arg2 + sizeof(struct target_timeval));
2694 } else {
2695 pvalue = NULL;
2696 }
2697 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2698 if (!is_error(ret) && arg3) {
2699 host_to_target_timeval(arg3,
2700 &ovalue.it_interval);
2701 host_to_target_timeval(arg3 + sizeof(struct target_timeval),
2702 &ovalue.it_value);
2703 }
2704 }
2705 break;
2706 case TARGET_NR_getitimer:
2707 {
2708 struct itimerval value;
2709
2710 ret = get_errno(getitimer(arg1, &value));
2711 if (!is_error(ret) && arg2) {
2712 host_to_target_timeval(arg2,
2713 &value.it_interval);
2714 host_to_target_timeval(arg2 + sizeof(struct target_timeval),
2715 &value.it_value);
2716 }
2717 }
2718 break;
2719 case TARGET_NR_stat:
2720 p = lock_user_string(arg1);
2721 ret = get_errno(stat(path(p), &st));
2722 unlock_user(p, arg1, 0);
2723 goto do_stat;
2724 case TARGET_NR_lstat:
2725 p = lock_user_string(arg1);
2726 ret = get_errno(lstat(path(p), &st));
2727 unlock_user(p, arg1, 0);
2728 goto do_stat;
2729 case TARGET_NR_fstat:
2730 {
2731 ret = get_errno(fstat(arg1, &st));
2732 do_stat:
2733 if (!is_error(ret)) {
2734 struct target_stat *target_st;
2735
2736 lock_user_struct(target_st, arg2, 0);
2737 target_st->st_dev = tswap16(st.st_dev);
2738 target_st->st_ino = tswapl(st.st_ino);
2739 #if defined(TARGET_PPC)
2740 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2741 target_st->st_uid = tswap32(st.st_uid);
2742 target_st->st_gid = tswap32(st.st_gid);
2743 #else
2744 target_st->st_mode = tswap16(st.st_mode);
2745 target_st->st_uid = tswap16(st.st_uid);
2746 target_st->st_gid = tswap16(st.st_gid);
2747 #endif
2748 target_st->st_nlink = tswap16(st.st_nlink);
2749 target_st->st_rdev = tswap16(st.st_rdev);
2750 target_st->st_size = tswapl(st.st_size);
2751 target_st->st_blksize = tswapl(st.st_blksize);
2752 target_st->st_blocks = tswapl(st.st_blocks);
2753 target_st->target_st_atime = tswapl(st.st_atime);
2754 target_st->target_st_mtime = tswapl(st.st_mtime);
2755 target_st->target_st_ctime = tswapl(st.st_ctime);
2756 unlock_user_struct(target_st, arg2, 1);
2757 }
2758 }
2759 break;
2760 #ifdef TARGET_NR_olduname
2761 case TARGET_NR_olduname:
2762 goto unimplemented;
2763 #endif
2764 #ifdef TARGET_NR_iopl
2765 case TARGET_NR_iopl:
2766 goto unimplemented;
2767 #endif
2768 case TARGET_NR_vhangup:
2769 ret = get_errno(vhangup());
2770 break;
2771 #ifdef TARGET_NR_idle
2772 case TARGET_NR_idle:
2773 goto unimplemented;
2774 #endif
2775 #ifdef TARGET_NR_syscall
2776 case TARGET_NR_syscall:
2777 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
2778 break;
2779 #endif
2780 case TARGET_NR_wait4:
2781 {
2782 int status;
2783 target_long status_ptr = arg2;
2784 struct rusage rusage, *rusage_ptr;
2785 target_ulong target_rusage = arg4;
2786 if (target_rusage)
2787 rusage_ptr = &rusage;
2788 else
2789 rusage_ptr = NULL;
2790 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2791 if (!is_error(ret)) {
2792 if (status_ptr)
2793 tputl(status_ptr, status);
2794 if (target_rusage) {
2795 host_to_target_rusage(target_rusage, &rusage);
2796 }
2797 }
2798 }
2799 break;
2800 case TARGET_NR_swapoff:
2801 p = lock_user_string(arg1);
2802 ret = get_errno(swapoff(p));
2803 unlock_user(p, arg1, 0);
2804 break;
2805 case TARGET_NR_sysinfo:
2806 {
2807 struct target_sysinfo *target_value;
2808 struct sysinfo value;
2809 ret = get_errno(sysinfo(&value));
2810 if (!is_error(ret) && arg1)
2811 {
2812 /* ??? __put_user is probably wrong. */
2813 lock_user_struct(target_value, arg1, 0);
2814 __put_user(value.uptime, &target_value->uptime);
2815 __put_user(value.loads[0], &target_value->loads[0]);
2816 __put_user(value.loads[1], &target_value->loads[1]);
2817 __put_user(value.loads[2], &target_value->loads[2]);
2818 __put_user(value.totalram, &target_value->totalram);
2819 __put_user(value.freeram, &target_value->freeram);
2820 __put_user(value.sharedram, &target_value->sharedram);
2821 __put_user(value.bufferram, &target_value->bufferram);
2822 __put_user(value.totalswap, &target_value->totalswap);
2823 __put_user(value.freeswap, &target_value->freeswap);
2824 __put_user(value.procs, &target_value->procs);
2825 __put_user(value.totalhigh, &target_value->totalhigh);
2826 __put_user(value.freehigh, &target_value->freehigh);
2827 __put_user(value.mem_unit, &target_value->mem_unit);
2828 unlock_user_struct(target_value, arg1, 1);
2829 }
2830 }
2831 break;
2832 case TARGET_NR_ipc:
2833 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2834 break;
2835 case TARGET_NR_fsync:
2836 ret = get_errno(fsync(arg1));
2837 break;
2838 case TARGET_NR_clone:
2839 ret = get_errno(do_fork(cpu_env, arg1, arg2));
2840 break;
2841 #ifdef __NR_exit_group
2842 /* new thread calls */
2843 case TARGET_NR_exit_group:
2844 gdb_exit(cpu_env, arg1);
2845 ret = get_errno(exit_group(arg1));
2846 break;
2847 #endif
2848 case TARGET_NR_setdomainname:
2849 p = lock_user_string(arg1);
2850 ret = get_errno(setdomainname(p, arg2));
2851 unlock_user(p, arg1, 0);
2852 break;
2853 case TARGET_NR_uname:
2854 /* no need to transcode because we use the linux syscall */
2855 {
2856 struct new_utsname * buf;
2857
2858 lock_user_struct(buf, arg1, 0);
2859 ret = get_errno(sys_uname(buf));
2860 if (!is_error(ret)) {
2861 /* Overrite the native machine name with whatever is being
2862 emulated. */
2863 strcpy (buf->machine, UNAME_MACHINE);
2864 }
2865 unlock_user_struct(buf, arg1, 1);
2866 }
2867 break;
2868 #ifdef TARGET_I386
2869 case TARGET_NR_modify_ldt:
2870 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
2871 break;
2872 case TARGET_NR_vm86old:
2873 goto unimplemented;
2874 case TARGET_NR_vm86:
2875 ret = do_vm86(cpu_env, arg1, arg2);
2876 break;
2877 #endif
2878 case TARGET_NR_adjtimex:
2879 goto unimplemented;
2880 case TARGET_NR_create_module:
2881 case TARGET_NR_init_module:
2882 case TARGET_NR_delete_module:
2883 case TARGET_NR_get_kernel_syms:
2884 goto unimplemented;
2885 case TARGET_NR_quotactl:
2886 goto unimplemented;
2887 case TARGET_NR_getpgid:
2888 ret = get_errno(getpgid(arg1));
2889 break;
2890 case TARGET_NR_fchdir:
2891 ret = get_errno(fchdir(arg1));
2892 break;
2893 case TARGET_NR_bdflush:
2894 goto unimplemented;
2895 case TARGET_NR_sysfs:
2896 goto unimplemented;
2897 case TARGET_NR_personality:
2898 ret = get_errno(personality(arg1));
2899 break;
2900 case TARGET_NR_afs_syscall:
2901 goto unimplemented;
2902 case TARGET_NR__llseek:
2903 {
2904 #if defined (__x86_64__)
2905 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2906 tput64(arg4, ret);
2907 #else
2908 int64_t res;
2909 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2910 tput64(arg4, res);
2911 #endif
2912 }
2913 break;
2914 case TARGET_NR_getdents:
2915 #if TARGET_LONG_SIZE != 4
2916 goto unimplemented;
2917 #warning not supported
2918 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2919 {
2920 struct target_dirent *target_dirp;
2921 struct dirent *dirp;
2922 long count = arg3;
2923
2924 dirp = malloc(count);
2925 if (!dirp)
2926 return -ENOMEM;
2927
2928 ret = get_errno(sys_getdents(arg1, dirp, count));
2929 if (!is_error(ret)) {
2930 struct dirent *de;
2931 struct target_dirent *tde;
2932 int len = ret;
2933 int reclen, treclen;
2934 int count1, tnamelen;
2935
2936 count1 = 0;
2937 de = dirp;
2938 target_dirp = lock_user(arg2, count, 0);
2939 tde = target_dirp;
2940 while (len > 0) {
2941 reclen = de->d_reclen;
2942 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2943 tde->d_reclen = tswap16(treclen);
2944 tde->d_ino = tswapl(de->d_ino);
2945 tde->d_off = tswapl(de->d_off);
2946 tnamelen = treclen - (2 * sizeof(target_long) + 2);
2947 if (tnamelen > 256)
2948 tnamelen = 256;
2949 /* XXX: may not be correct */
2950 strncpy(tde->d_name, de->d_name, tnamelen);
2951 de = (struct dirent *)((char *)de + reclen);
2952 len -= reclen;
2953 tde = (struct dirent *)((char *)tde + treclen);
2954 count1 += treclen;
2955 }
2956 ret = count1;
2957 }
2958 unlock_user(target_dirp, arg2, ret);
2959 free(dirp);
2960 }
2961 #else
2962 {
2963 struct dirent *dirp;
2964 long count = arg3;
2965
2966 dirp = lock_user(arg2, count, 0);
2967 ret = get_errno(sys_getdents(arg1, dirp, count));
2968 if (!is_error(ret)) {
2969 struct dirent *de;
2970 int len = ret;
2971 int reclen;
2972 de = dirp;
2973 while (len > 0) {
2974 reclen = de->d_reclen;
2975 if (reclen > len)
2976 break;
2977 de->d_reclen = tswap16(reclen);
2978 tswapls(&de->d_ino);
2979 tswapls(&de->d_off);
2980 de = (struct dirent *)((char *)de + reclen);
2981 len -= reclen;
2982 }
2983 }
2984 unlock_user(dirp, arg2, ret);
2985 }
2986 #endif
2987 break;
2988 #ifdef TARGET_NR_getdents64
2989 case TARGET_NR_getdents64:
2990 {
2991 struct dirent64 *dirp;
2992 long count = arg3;
2993 dirp = lock_user(arg2, count, 0);
2994 ret = get_errno(sys_getdents64(arg1, dirp, count));
2995 if (!is_error(ret)) {
2996 struct dirent64 *de;
2997 int len = ret;
2998 int reclen;
2999 de = dirp;
3000 while (len > 0) {
3001 reclen = de->d_reclen;
3002 if (reclen > len)
3003 break;
3004 de->d_reclen = tswap16(reclen);
3005 tswap64s(&de->d_ino);
3006 tswap64s(&de->d_off);
3007 de = (struct dirent64 *)((char *)de + reclen);
3008 len -= reclen;
3009 }
3010 }
3011 unlock_user(dirp, arg2, ret);
3012 }
3013 break;
3014 #endif /* TARGET_NR_getdents64 */
3015 case TARGET_NR__newselect:
3016 ret = do_select(arg1, arg2, arg3, arg4, arg5);
3017 break;
3018 case TARGET_NR_poll:
3019 {
3020 struct target_pollfd *target_pfd;
3021 unsigned int nfds = arg2;
3022 int timeout = arg3;
3023 struct pollfd *pfd;
3024 unsigned int i;
3025
3026 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3027 pfd = alloca(sizeof(struct pollfd) * nfds);
3028 for(i = 0; i < nfds; i++) {
3029 pfd[i].fd = tswap32(target_pfd[i].fd);
3030 pfd[i].events = tswap16(target_pfd[i].events);
3031 }
3032 ret = get_errno(poll(pfd, nfds, timeout));
3033 if (!is_error(ret)) {
3034 for(i = 0; i < nfds; i++) {
3035 target_pfd[i].revents = tswap16(pfd[i].revents);
3036 }
3037 ret += nfds * (sizeof(struct target_pollfd)
3038 - sizeof(struct pollfd));
3039 }
3040 unlock_user(target_pfd, arg1, ret);
3041 }
3042 break;
3043 case TARGET_NR_flock:
3044 /* NOTE: the flock constant seems to be the same for every
3045 Linux platform */
3046 ret = get_errno(flock(arg1, arg2));
3047 break;
3048 case TARGET_NR_readv:
3049 {
3050 int count = arg3;
3051 struct iovec *vec;
3052
3053 vec = alloca(count * sizeof(struct iovec));
3054 lock_iovec(vec, arg2, count, 0);
3055 ret = get_errno(readv(arg1, vec, count));
3056 unlock_iovec(vec, arg2, count, 1);
3057 }
3058 break;
3059 case TARGET_NR_writev:
3060 {
3061 int count = arg3;
3062 struct iovec *vec;
3063
3064 vec = alloca(count * sizeof(struct iovec));
3065 lock_iovec(vec, arg2, count, 1);
3066 ret = get_errno(writev(arg1, vec, count));
3067 unlock_iovec(vec, arg2, count, 0);
3068 }
3069 break;
3070 case TARGET_NR_getsid:
3071 ret = get_errno(getsid(arg1));
3072 break;
3073 case TARGET_NR_fdatasync:
3074 ret = get_errno(fdatasync(arg1));
3075 break;
3076 case TARGET_NR__sysctl:
3077 /* We don't implement this, but ENODIR is always a safe
3078 return value. */
3079 return -ENOTDIR;
3080 case TARGET_NR_sched_setparam:
3081 {
3082 struct sched_param *target_schp;
3083 struct sched_param schp;
3084
3085 lock_user_struct(target_schp, arg2, 1);
3086 schp.sched_priority = tswap32(target_schp->sched_priority);
3087 unlock_user_struct(target_schp, arg2, 0);
3088 ret = get_errno(sched_setparam(arg1, &schp));
3089 }
3090 break;
3091 case TARGET_NR_sched_getparam:
3092 {
3093 struct sched_param *target_schp;
3094 struct sched_param schp;
3095 ret = get_errno(sched_getparam(arg1, &schp));
3096 if (!is_error(ret)) {
3097 lock_user_struct(target_schp, arg2, 0);
3098 target_schp->sched_priority = tswap32(schp.sched_priority);
3099 unlock_user_struct(target_schp, arg2, 1);
3100 }
3101 }
3102 break;
3103 case TARGET_NR_sched_setscheduler:
3104 {
3105 struct sched_param *target_schp;
3106 struct sched_param schp;
3107 lock_user_struct(target_schp, arg3, 1);
3108 schp.sched_priority = tswap32(target_schp->sched_priority);
3109 unlock_user_struct(target_schp, arg3, 0);
3110 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3111 }
3112 break;
3113 case TARGET_NR_sched_getscheduler:
3114 ret = get_errno(sched_getscheduler(arg1));
3115 break;
3116 case TARGET_NR_sched_yield:
3117 ret = get_errno(sched_yield());
3118 break;
3119 case TARGET_NR_sched_get_priority_max:
3120 ret = get_errno(sched_get_priority_max(arg1));
3121 break;
3122 case TARGET_NR_sched_get_priority_min:
3123 ret = get_errno(sched_get_priority_min(arg1));
3124 break;
3125 case TARGET_NR_sched_rr_get_interval:
3126 {
3127 struct timespec ts;
3128 ret = get_errno(sched_rr_get_interval(arg1, &ts));
3129 if (!is_error(ret)) {
3130 host_to_target_timespec(arg2, &ts);
3131 }
3132 }
3133 break;
3134 case TARGET_NR_nanosleep:
3135 {
3136 struct timespec req, rem;
3137 target_to_host_timespec(&req, arg1);
3138 ret = get_errno(nanosleep(&req, &rem));
3139 if (is_error(ret) && arg2) {
3140 host_to_target_timespec(arg2, &rem);
3141 }
3142 }
3143 break;
3144 case TARGET_NR_query_module:
3145 goto unimplemented;
3146 case TARGET_NR_nfsservctl:
3147 goto unimplemented;
3148 case TARGET_NR_prctl:
3149 goto unimplemented;
3150 #ifdef TARGET_NR_pread
3151 case TARGET_NR_pread:
3152 page_unprotect_range(arg2, arg3);
3153 p = lock_user(arg2, arg3, 0);
3154 ret = get_errno(pread(arg1, p, arg3, arg4));
3155 unlock_user(p, arg2, ret);
3156 break;
3157 case TARGET_NR_pwrite:
3158 p = lock_user(arg2, arg3, 1);
3159 ret = get_errno(pwrite(arg1, p, arg3, arg4));
3160 unlock_user(p, arg2, 0);
3161 break;
3162 #endif
3163 case TARGET_NR_getcwd:
3164 p = lock_user(arg1, arg2, 0);
3165 ret = get_errno(sys_getcwd1(p, arg2));
3166 unlock_user(p, arg1, ret);
3167 break;
3168 case TARGET_NR_capget:
3169 goto unimplemented;
3170 case TARGET_NR_capset:
3171 goto unimplemented;
3172 case TARGET_NR_sigaltstack:
3173 goto unimplemented;
3174 case TARGET_NR_sendfile:
3175 goto unimplemented;
3176 #ifdef TARGET_NR_getpmsg
3177 case TARGET_NR_getpmsg:
3178 goto unimplemented;
3179 #endif
3180 #ifdef TARGET_NR_putpmsg
3181 case TARGET_NR_putpmsg:
3182 goto unimplemented;
3183 #endif
3184 #ifdef TARGET_NR_vfork
3185 case TARGET_NR_vfork:
3186 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3187 break;
3188 #endif
3189 #ifdef TARGET_NR_ugetrlimit
3190 case TARGET_NR_ugetrlimit:
3191 {
3192 struct rlimit rlim;
3193 ret = get_errno(getrlimit(arg1, &rlim));
3194 if (!is_error(ret)) {
3195 struct target_rlimit *target_rlim;
3196 lock_user_struct(target_rlim, arg2, 0);
3197 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3198 target_rlim->rlim_max = tswapl(rlim.rlim_max);
3199 unlock_user_struct(target_rlim, arg2, 1);
3200 }
3201 break;
3202 }
3203 #endif
3204 #ifdef TARGET_NR_truncate64
3205 case TARGET_NR_truncate64:
3206 p = lock_user_string(arg1);
3207 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3208 unlock_user(p, arg1, 0);
3209 break;
3210 #endif
3211 #ifdef TARGET_NR_ftruncate64
3212 case TARGET_NR_ftruncate64:
3213 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3214 break;
3215 #endif
3216 #ifdef TARGET_NR_stat64
3217 case TARGET_NR_stat64:
3218 p = lock_user_string(arg1);
3219 ret = get_errno(stat(path(p), &st));
3220 unlock_user(p, arg1, 0);
3221 goto do_stat64;
3222 #endif
3223 #ifdef TARGET_NR_lstat64
3224 case TARGET_NR_lstat64:
3225 p = lock_user_string(arg1);
3226 ret = get_errno(lstat(path(p), &st));
3227 unlock_user(p, arg1, 0);
3228 goto do_stat64;
3229 #endif
3230 #ifdef TARGET_NR_fstat64
3231 case TARGET_NR_fstat64:
3232 {
3233 ret = get_errno(fstat(arg1, &st));
3234 do_stat64:
3235 if (!is_error(ret)) {
3236 #ifdef TARGET_ARM
3237 if (((CPUARMState *)cpu_env)->eabi) {
3238 struct target_eabi_stat64 *target_st;
3239 lock_user_struct(target_st, arg2, 1);
3240 memset(target_st, 0, sizeof(struct target_eabi_stat64));
3241 /* put_user is probably wrong. */
3242 put_user(st.st_dev, &target_st->st_dev);
3243 put_user(st.st_ino, &target_st->st_ino);
3244 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3245 put_user(st.st_ino, &target_st->__st_ino);
3246 #endif
3247 put_user(st.st_mode, &target_st->st_mode);
3248 put_user(st.st_nlink, &target_st->st_nlink);
3249 put_user(st.st_uid, &target_st->st_uid);
3250 put_user(st.st_gid, &target_st->st_gid);
3251 put_user(st.st_rdev, &target_st->st_rdev);
3252 /* XXX: better use of kernel struct */
3253 put_user(st.st_size, &target_st->st_size);
3254 put_user(st.st_blksize, &target_st->st_blksize);
3255 put_user(st.st_blocks, &target_st->st_blocks);
3256 put_user(st.st_atime, &target_st->target_st_atime);
3257 put_user(st.st_mtime, &target_st->target_st_mtime);
3258 put_user(st.st_ctime, &target_st->target_st_ctime);
3259 unlock_user_struct(target_st, arg2, 0);
3260 } else
3261 #endif
3262 {
3263 struct target_stat64 *target_st;
3264 lock_user_struct(target_st, arg2, 1);
3265 memset(target_st, 0, sizeof(struct target_stat64));
3266 /* ??? put_user is probably wrong. */
3267 put_user(st.st_dev, &target_st->st_dev);
3268 put_user(st.st_ino, &target_st->st_ino);
3269 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3270 put_user(st.st_ino, &target_st->__st_ino);
3271 #endif
3272 put_user(st.st_mode, &target_st->st_mode);
3273 put_user(st.st_nlink, &target_st->st_nlink);
3274 put_user(st.st_uid, &target_st->st_uid);
3275 put_user(st.st_gid, &target_st->st_gid);
3276 put_user(st.st_rdev, &target_st->st_rdev);
3277 /* XXX: better use of kernel struct */
3278 put_user(st.st_size, &target_st->st_size);
3279 put_user(st.st_blksize, &target_st->st_blksize);
3280 put_user(st.st_blocks, &target_st->st_blocks);
3281 put_user(st.st_atime, &target_st->target_st_atime);
3282 put_user(st.st_mtime, &target_st->target_st_mtime);
3283 put_user(st.st_ctime, &target_st->target_st_ctime);
3284 unlock_user_struct(target_st, arg2, 0);
3285 }
3286 }
3287 }
3288 break;
3289 #endif
3290 #ifdef USE_UID16
3291 case TARGET_NR_lchown:
3292 p = lock_user_string(arg1);
3293 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3294 unlock_user(p, arg1, 0);
3295 break;
3296 case TARGET_NR_getuid:
3297 ret = get_errno(high2lowuid(getuid()));
3298 break;
3299 case TARGET_NR_getgid:
3300 ret = get_errno(high2lowgid(getgid()));
3301 break;
3302 case TARGET_NR_geteuid:
3303 ret = get_errno(high2lowuid(geteuid()));
3304 break;
3305 case TARGET_NR_getegid:
3306 ret = get_errno(high2lowgid(getegid()));
3307 break;
3308 case TARGET_NR_setreuid:
3309 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3310 break;
3311 case TARGET_NR_setregid:
3312 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3313 break;
3314 case TARGET_NR_getgroups:
3315 {
3316 int gidsetsize = arg1;
3317 uint16_t *target_grouplist;
3318 gid_t *grouplist;
3319 int i;
3320
3321 grouplist = alloca(gidsetsize * sizeof(gid_t));
3322 ret = get_errno(getgroups(gidsetsize, grouplist));
3323 if (!is_error(ret)) {
3324 target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3325 for(i = 0;i < gidsetsize; i++)
3326 target_grouplist[i] = tswap16(grouplist[i]);
3327 unlock_user(target_grouplist, arg2, gidsetsize * 2);
3328 }
3329 }
3330 break;
3331 case TARGET_NR_setgroups:
3332 {
3333 int gidsetsize = arg1;
3334 uint16_t *target_grouplist;
3335 gid_t *grouplist;
3336 int i;
3337
3338 grouplist = alloca(gidsetsize * sizeof(gid_t));
3339 target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3340 for(i = 0;i < gidsetsize; i++)
3341 grouplist[i] = tswap16(target_grouplist[i]);
3342 unlock_user(target_grouplist, arg2, 0);
3343 ret = get_errno(setgroups(gidsetsize, grouplist));
3344 }
3345 break;
3346 case TARGET_NR_fchown:
3347 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3348 break;
3349 #ifdef TARGET_NR_setresuid
3350 case TARGET_NR_setresuid:
3351 ret = get_errno(setresuid(low2highuid(arg1),
3352 low2highuid(arg2),
3353 low2highuid(arg3)));
3354 break;
3355 #endif
3356 #ifdef TARGET_NR_getresuid
3357 case TARGET_NR_getresuid:
3358 {
3359 uid_t ruid, euid, suid;
3360 ret = get_errno(getresuid(&ruid, &euid, &suid));
3361 if (!is_error(ret)) {
3362 tput16(arg1, tswap16(high2lowuid(ruid)));
3363 tput16(arg2, tswap16(high2lowuid(euid)));
3364 tput16(arg3, tswap16(high2lowuid(suid)));
3365 }
3366 }
3367 break;
3368 #endif
3369 #ifdef TARGET_NR_getresgid
3370 case TARGET_NR_setresgid:
3371 ret = get_errno(setresgid(low2highgid(arg1),
3372 low2highgid(arg2),
3373 low2highgid(arg3)));
3374 break;
3375 #endif
3376 #ifdef TARGET_NR_getresgid
3377 case TARGET_NR_getresgid:
3378 {
3379 gid_t rgid, egid, sgid;
3380 ret = get_errno(getresgid(&rgid, &egid, &sgid));
3381 if (!is_error(ret)) {
3382 tput16(arg1, tswap16(high2lowgid(rgid)));
3383 tput16(arg2, tswap16(high2lowgid(egid)));
3384 tput16(arg3, tswap16(high2lowgid(sgid)));
3385 }
3386 }
3387 break;
3388 #endif
3389 case TARGET_NR_chown:
3390 p = lock_user_string(arg1);
3391 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3392 unlock_user(p, arg1, 0);
3393 break;
3394 case TARGET_NR_setuid:
3395 ret = get_errno(setuid(low2highuid(arg1)));
3396 break;
3397 case TARGET_NR_setgid:
3398 ret = get_errno(setgid(low2highgid(arg1)));
3399 break;
3400 case TARGET_NR_setfsuid:
3401 ret = get_errno(setfsuid(arg1));
3402 break;
3403 case TARGET_NR_setfsgid:
3404 ret = get_errno(setfsgid(arg1));
3405 break;
3406 #endif /* USE_UID16 */
3407
3408 #ifdef TARGET_NR_lchown32
3409 case TARGET_NR_lchown32:
3410 p = lock_user_string(arg1);
3411 ret = get_errno(lchown(p, arg2, arg3));
3412 unlock_user(p, arg1, 0);
3413 break;
3414 #endif
3415 #ifdef TARGET_NR_getuid32
3416 case TARGET_NR_getuid32:
3417 ret = get_errno(getuid());
3418 break;
3419 #endif
3420 #ifdef TARGET_NR_getgid32
3421 case TARGET_NR_getgid32:
3422 ret = get_errno(getgid());
3423 break;
3424 #endif
3425 #ifdef TARGET_NR_geteuid32
3426 case TARGET_NR_geteuid32:
3427 ret = get_errno(geteuid());
3428 break;
3429 #endif
3430 #ifdef TARGET_NR_getegid32
3431 case TARGET_NR_getegid32:
3432 ret = get_errno(getegid());
3433 break;
3434 #endif
3435 #ifdef TARGET_NR_setreuid32
3436 case TARGET_NR_setreuid32:
3437 ret = get_errno(setreuid(arg1, arg2));
3438 break;
3439 #endif
3440 #ifdef TARGET_NR_setregid32
3441 case TARGET_NR_setregid32:
3442 ret = get_errno(setregid(arg1, arg2));
3443 break;
3444 #endif
3445 #ifdef TARGET_NR_getgroups32
3446 case TARGET_NR_getgroups32:
3447 {
3448 int gidsetsize = arg1;
3449 uint32_t *target_grouplist;
3450 gid_t *grouplist;
3451 int i;
3452
3453 grouplist = alloca(gidsetsize * sizeof(gid_t));
3454 ret = get_errno(getgroups(gidsetsize, grouplist));
3455 if (!is_error(ret)) {
3456 target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3457 for(i = 0;i < gidsetsize; i++)
3458 target_grouplist[i] = tswap32(grouplist[i]);
3459 unlock_user(target_grouplist, arg2, gidsetsize * 4);
3460 }
3461 }
3462 break;
3463 #endif
3464 #ifdef TARGET_NR_setgroups32
3465 case TARGET_NR_setgroups32:
3466 {
3467 int gidsetsize = arg1;
3468 uint32_t *target_grouplist;
3469 gid_t *grouplist;
3470 int i;
3471
3472 grouplist = alloca(gidsetsize * sizeof(gid_t));
3473 target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3474 for(i = 0;i < gidsetsize; i++)
3475 grouplist[i] = tswap32(target_grouplist[i]);
3476 unlock_user(target_grouplist, arg2, 0);
3477 ret = get_errno(setgroups(gidsetsize, grouplist));
3478 }
3479 break;
3480 #endif
3481 #ifdef TARGET_NR_fchown32
3482 case TARGET_NR_fchown32:
3483 ret = get_errno(fchown(arg1, arg2, arg3));
3484 break;
3485 #endif
3486 #ifdef TARGET_NR_setresuid32
3487 case TARGET_NR_setresuid32:
3488 ret = get_errno(setresuid(arg1, arg2, arg3));
3489 break;
3490 #endif
3491 #ifdef TARGET_NR_getresuid32
3492 case TARGET_NR_getresuid32:
3493 {
3494 uid_t ruid, euid, suid;
3495 ret = get_errno(getresuid(&ruid, &euid, &suid));
3496 if (!is_error(ret)) {
3497 tput32(arg1, tswap32(ruid));
3498 tput32(arg2, tswap32(euid));
3499 tput32(arg3, tswap32(suid));
3500 }
3501 }
3502 break;
3503 #endif
3504 #ifdef TARGET_NR_setresgid32
3505 case TARGET_NR_setresgid32:
3506 ret = get_errno(setresgid(arg1, arg2, arg3));
3507 break;
3508 #endif
3509 #ifdef TARGET_NR_getresgid32
3510 case TARGET_NR_getresgid32:
3511 {
3512 gid_t rgid, egid, sgid;
3513 ret = get_errno(getresgid(&rgid, &egid, &sgid));
3514 if (!is_error(ret)) {
3515 tput32(arg1, tswap32(rgid));
3516 tput32(arg2, tswap32(egid));
3517 tput32(arg3, tswap32(sgid));
3518 }
3519 }
3520 break;
3521 #endif
3522 #ifdef TARGET_NR_chown32
3523 case TARGET_NR_chown32:
3524 p = lock_user_string(arg1);
3525 ret = get_errno(chown(p, arg2, arg3));
3526 unlock_user(p, arg1, 0);
3527 break;
3528 #endif
3529 #ifdef TARGET_NR_setuid32
3530 case TARGET_NR_setuid32:
3531 ret = get_errno(setuid(arg1));
3532 break;
3533 #endif
3534 #ifdef TARGET_NR_setgid32
3535 case TARGET_NR_setgid32:
3536 ret = get_errno(setgid(arg1));
3537 break;
3538 #endif
3539 #ifdef TARGET_NR_setfsuid32
3540 case TARGET_NR_setfsuid32:
3541 ret = get_errno(setfsuid(arg1));
3542 break;
3543 #endif
3544 #ifdef TARGET_NR_setfsgid32
3545 case TARGET_NR_setfsgid32:
3546 ret = get_errno(setfsgid(arg1));
3547 break;
3548 #endif
3549
3550 case TARGET_NR_pivot_root:
3551 goto unimplemented;
3552 #ifdef TARGET_NR_mincore
3553 case TARGET_NR_mincore:
3554 goto unimplemented;
3555 #endif
3556 #ifdef TARGET_NR_madvise
3557 case TARGET_NR_madvise:
3558 /* A straight passthrough may not be safe because qemu sometimes
3559 turns private flie-backed mappings into anonymous mappings.
3560 This will break MADV_DONTNEED.
3561 This is a hint, so ignoring and returning success is ok. */
3562 ret = get_errno(0);
3563 break;
3564 #endif
3565 #if TARGET_LONG_BITS == 32
3566 case TARGET_NR_fcntl64:
3567 {
3568 struct flock64 fl;
3569 struct target_flock64 *target_fl;
3570 #ifdef TARGET_ARM
3571 struct target_eabi_flock64 *target_efl;
3572 #endif
3573
3574 switch(arg2) {
3575 case F_GETLK64:
3576 ret = get_errno(fcntl(arg1, arg2, &fl));
3577 if (ret == 0) {
3578 #ifdef TARGET_ARM
3579 if (((CPUARMState *)cpu_env)->eabi) {
3580 lock_user_struct(target_efl, arg3, 0);
3581 target_efl->l_type = tswap16(fl.l_type);
3582 target_efl->l_whence = tswap16(fl.l_whence);
3583 target_efl->l_start = tswap64(fl.l_start);
3584 target_efl->l_len = tswap64(fl.l_len);
3585 target_efl->l_pid = tswapl(fl.l_pid);
3586 unlock_user_struct(target_efl, arg3, 1);
3587 } else
3588 #endif
3589 {
3590 lock_user_struct(target_fl, arg3, 0);
3591 target_fl->l_type = tswap16(fl.l_type);
3592 target_fl->l_whence = tswap16(fl.l_whence);
3593 target_fl->l_start = tswap64(fl.l_start);
3594 target_fl->l_len = tswap64(fl.l_len);
3595 target_fl->l_pid = tswapl(fl.l_pid);
3596 unlock_user_struct(target_fl, arg3, 1);
3597 }
3598 }
3599 break;
3600
3601 case F_SETLK64:
3602 case F_SETLKW64:
3603 #ifdef TARGET_ARM
3604 if (((CPUARMState *)cpu_env)->eabi) {
3605 lock_user_struct(target_efl, arg3, 1);
3606 fl.l_type = tswap16(target_efl->l_type);
3607 fl.l_whence = tswap16(target_efl->l_whence);
3608 fl.l_start = tswap64(target_efl->l_start);
3609 fl.l_len = tswap64(target_efl->l_len);
3610 fl.l_pid = tswapl(target_efl->l_pid);
3611 unlock_user_struct(target_efl, arg3, 0);
3612 } else
3613 #endif
3614 {
3615 lock_user_struct(target_fl, arg3, 1);
3616 fl.l_type = tswap16(target_fl->l_type);
3617 fl.l_whence = tswap16(target_fl->l_whence);
3618 fl.l_start = tswap64(target_fl->l_start);
3619 fl.l_len = tswap64(target_fl->l_len);
3620 fl.l_pid = tswapl(target_fl->l_pid);
3621 unlock_user_struct(target_fl, arg3, 0);
3622 }
3623 ret = get_errno(fcntl(arg1, arg2, &fl));
3624 break;
3625 default:
3626 ret = get_errno(do_fcntl(arg1, arg2, arg3));
3627 break;
3628 }
3629 break;
3630 }
3631 #endif
3632 #ifdef TARGET_NR_security
3633 case TARGET_NR_security:
3634 goto unimplemented;
3635 #endif
3636 #ifdef TARGET_NR_getpagesize
3637 case TARGET_NR_getpagesize:
3638 ret = TARGET_PAGE_SIZE;
3639 break;
3640 #endif
3641 case TARGET_NR_gettid:
3642 ret = get_errno(gettid());
3643 break;
3644 case TARGET_NR_readahead:
3645 goto unimplemented;
3646 #ifdef TARGET_NR_setxattr
3647 case TARGET_NR_setxattr:
3648 case TARGET_NR_lsetxattr:
3649 case TARGET_NR_fsetxattr:
3650 case TARGET_NR_getxattr:
3651 case TARGET_NR_lgetxattr:
3652 case TARGET_NR_fgetxattr:
3653 case TARGET_NR_listxattr:
3654 case TARGET_NR_llistxattr:
3655 case TARGET_NR_flistxattr:
3656 case TARGET_NR_removexattr:
3657 case TARGET_NR_lremovexattr:
3658 case TARGET_NR_fremovexattr:
3659 goto unimplemented_nowarn;
3660 #endif
3661 #ifdef TARGET_NR_set_thread_area
3662 case TARGET_NR_set_thread_area:
3663 case TARGET_NR_get_thread_area:
3664 goto unimplemented_nowarn;
3665 #endif
3666 default:
3667 unimplemented:
3668 gemu_log("qemu: Unsupported syscall: %d\n", num);
3669 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area)
3670 unimplemented_nowarn:
3671 #endif
3672 ret = -ENOSYS;
3673 break;
3674 }
3675 fail:
3676 #ifdef DEBUG
3677 gemu_log(" = %ld\n", ret);
3678 #endif
3679 return ret;
3680 }
3681
Samsung s3c2440 and arm920t support for the mini2440 dev board