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1
/*
2
 *  Linux syscalls
3
 * 
4
 *  Copyright (c) 2003 Fabrice Bellard
5
 *
6
 *  This program is free software; you can redistribute it and/or modify
7
 *  it under the terms of the GNU General Public License as published by
8
 *  the Free Software Foundation; either version 2 of the License, or
9
 *  (at your option) any later version.
10
 *
11
 *  This program is distributed in the hope that it will be useful,
12
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19
 */
20
#include <stdlib.h>
21
#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
27
#include <unistd.h>
28
#include <fcntl.h>
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#include <time.h>
30
#include <sys/types.h>
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#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/user.h>
45
#include <netinet/tcp.h>
46

    
47
#define termios host_termios
48
#define winsize host_winsize
49
#define termio host_termio
50
#define sgttyb host_sgttyb /* same as target */
51
#define tchars host_tchars /* same as target */
52
#define ltchars host_ltchars /* same as target */
53

    
54
#include <linux/termios.h>
55
#include <linux/unistd.h>
56
#include <linux/utsname.h>
57
#include <linux/cdrom.h>
58
#include <linux/hdreg.h>
59
#include <linux/soundcard.h>
60
#include <linux/dirent.h>
61

    
62
#include "qemu.h"
63

    
64
//#define DEBUG
65

    
66
#ifndef PAGE_SIZE
67
#define PAGE_SIZE 4096
68
#define PAGE_MASK ~(PAGE_SIZE - 1)
69
#endif
70

    
71
//#include <linux/msdos_fs.h>
72
#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
73
#define        VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
74

    
75
void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
76
void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
77
long do_sigreturn(CPUX86State *env);
78
long do_rt_sigreturn(CPUX86State *env);
79

    
80
#define __NR_sys_uname __NR_uname
81
#define __NR_sys_getcwd1 __NR_getcwd
82
#define __NR_sys_statfs __NR_statfs
83
#define __NR_sys_fstatfs __NR_fstatfs
84
#define __NR_sys_getdents __NR_getdents
85
#define __NR_sys_getdents64 __NR_getdents64
86
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
87

    
88
#ifdef __NR_gettid
89
_syscall0(int, gettid)
90
#else
91
static int gettid(void) {
92
    return -ENOSYS;
93
}
94
#endif
95
_syscall1(int,sys_uname,struct new_utsname *,buf)
96
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
97
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
98
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
99
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
100
          loff_t *, res, uint, wh);
101
_syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
102
_syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
103
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
104

    
105
extern int personality(int);
106
extern int flock(int, int);
107
extern int setfsuid(int);
108
extern int setfsgid(int);
109
extern int setresuid(uid_t, uid_t, uid_t);
110
extern int getresuid(uid_t *, uid_t *, uid_t *);
111
extern int setresgid(gid_t, gid_t, gid_t);
112
extern int getresgid(gid_t *, gid_t *, gid_t *);
113

    
114
static inline long get_errno(long ret)
115
{
116
    if (ret == -1)
117
        return -errno;
118
    else
119
        return ret;
120
}
121

    
122
static inline int is_error(long ret)
123
{
124
    return (unsigned long)ret >= (unsigned long)(-4096);
125
}
126

    
127
static char *target_brk;
128
static char *target_original_brk;
129

    
130
void target_set_brk(char *new_brk)
131
{
132
    target_brk = new_brk;
133
    target_original_brk = new_brk;
134
}
135

    
136
static long do_brk(char *new_brk)
137
{
138
    char *brk_page;
139
    long mapped_addr;
140
    int        new_alloc_size;
141

    
142
    if (!new_brk)
143
        return (long)target_brk;
144
    if (new_brk < target_original_brk)
145
        return -ENOMEM;
146
    
147
    brk_page = (char *)(((unsigned long)target_brk + PAGE_SIZE - 1) & PAGE_MASK);
148

    
149
    /* If the new brk is less than this, set it and we're done... */
150
    if (new_brk < brk_page) {
151
        target_brk = new_brk;
152
            return (long)target_brk;
153
    }
154

    
155
    /* We need to allocate more memory after the brk... */
156
    new_alloc_size = ((new_brk - brk_page + 1)+(PAGE_SIZE-1)) & PAGE_MASK;
157
    mapped_addr = get_errno((long)mmap((caddr_t)brk_page, new_alloc_size, 
158
                                       PROT_READ|PROT_WRITE,
159
                                       MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
160
    
161
    if (is_error(mapped_addr)) {
162
        return mapped_addr;
163
    } else {
164
        target_brk = new_brk;
165
            return (long)target_brk;
166
    }
167
}
168

    
169
static inline fd_set *target_to_host_fds(fd_set *fds, 
170
                                         target_long *target_fds, int n)
171
{
172
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
173
    return (fd_set *)target_fds;
174
#else
175
    int i, b;
176
    if (target_fds) {
177
        FD_ZERO(fds);
178
        for(i = 0;i < n; i++) {
179
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
180
                 (i & (TARGET_LONG_BITS - 1))) & 1;
181
            if (b)
182
                FD_SET(i, fds);
183
        }
184
        return fds;
185
    } else {
186
        return NULL;
187
    }
188
#endif
189
}
190

    
191
static inline void host_to_target_fds(target_long *target_fds, 
192
                                      fd_set *fds, int n)
193
{
194
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
195
    /* nothing to do */
196
#else
197
    int i, nw, j, k;
198
    target_long v;
199

    
200
    if (target_fds) {
201
        nw = n / TARGET_LONG_BITS;
202
        k = 0;
203
        for(i = 0;i < nw; i++) {
204
            v = 0;
205
            for(j = 0; j < TARGET_LONG_BITS; j++) {
206
                v |= ((FD_ISSET(k, fds) != 0) << j);
207
                k++;
208
            }
209
            target_fds[i] = tswapl(v);
210
        }
211
    }
212
#endif
213
}
214

    
215
static inline void target_to_host_timeval(struct timeval *tv, 
216
                                          const struct target_timeval *target_tv)
217
{
218
    tv->tv_sec = tswapl(target_tv->tv_sec);
219
    tv->tv_usec = tswapl(target_tv->tv_usec);
220
}
221

    
222
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
223
                                          const struct timeval *tv)
224
{
225
    target_tv->tv_sec = tswapl(tv->tv_sec);
226
    target_tv->tv_usec = tswapl(tv->tv_usec);
227
}
228

    
229

    
230
static long do_select(long n, 
231
                      target_long *target_rfds, target_long *target_wfds, 
232
                      target_long *target_efds, struct target_timeval *target_tv)
233
{
234
    fd_set rfds, wfds, efds;
235
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
236
    struct timeval tv, *tv_ptr;
237
    long ret;
238

    
239
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
240
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
241
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
242
            
243
    if (target_tv) {
244
        target_to_host_timeval(&tv, target_tv);
245
        tv_ptr = &tv;
246
    } else {
247
        tv_ptr = NULL;
248
    }
249
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
250
    if (!is_error(ret)) {
251
        host_to_target_fds(target_rfds, rfds_ptr, n);
252
        host_to_target_fds(target_wfds, wfds_ptr, n);
253
        host_to_target_fds(target_efds, efds_ptr, n);
254

    
255
        if (target_tv) {
256
            host_to_target_timeval(target_tv, &tv);
257
        }
258
    }
259
    return ret;
260
}
261

    
262
static inline void target_to_host_sockaddr(struct sockaddr *addr,
263
                                           struct target_sockaddr *target_addr,
264
                                           socklen_t len)
265
{
266
    memcpy(addr, target_addr, len);
267
    addr->sa_family = tswap16(target_addr->sa_family);
268
}
269

    
270
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
271
                                           struct sockaddr *addr,
272
                                           socklen_t len)
273
{
274
    memcpy(target_addr, addr, len);
275
    target_addr->sa_family = tswap16(addr->sa_family);
276
}
277

    
278
static inline void target_to_host_cmsg(struct msghdr *msgh,
279
                                       struct target_msghdr *target_msgh)
280
{
281
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
282
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
283
    socklen_t space = 0;
284

    
285
    while (cmsg && target_cmsg) {
286
        void *data = CMSG_DATA(cmsg);
287
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
288

    
289
        int len = tswapl(target_cmsg->cmsg_len) 
290
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
291

    
292
        space += CMSG_SPACE(len);
293
        if (space > msgh->msg_controllen) {
294
            space -= CMSG_SPACE(len);
295
            gemu_log("Host cmsg overflow");
296
            break;
297
        }
298

    
299
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
300
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
301
        cmsg->cmsg_len = CMSG_LEN(len);
302

    
303
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
304
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
305
            memcpy(data, target_data, len);
306
        } else {
307
            int *fd = (int *)data;
308
            int *target_fd = (int *)target_data;
309
            int i, numfds = len / sizeof(int);
310

    
311
            for (i = 0; i < numfds; i++)
312
                fd[i] = tswap32(target_fd[i]);
313
        }
314

    
315
        cmsg = CMSG_NXTHDR(msgh, cmsg);
316
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
317
    }
318

    
319
    msgh->msg_controllen = space;
320
}
321

    
322
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
323
                                       struct msghdr *msgh)
324
{
325
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
326
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
327
    socklen_t space = 0;
328

    
329
    while (cmsg && target_cmsg) {
330
        void *data = CMSG_DATA(cmsg);
331
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
332

    
333
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
334

    
335
        space += TARGET_CMSG_SPACE(len);
336
        if (space > tswapl(target_msgh->msg_controllen)) {
337
            space -= TARGET_CMSG_SPACE(len);
338
            gemu_log("Target cmsg overflow");
339
            break;
340
        }
341

    
342
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
343
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
344
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
345

    
346
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
347
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
348
            memcpy(target_data, data, len);
349
        } else {
350
            int *fd = (int *)data;
351
            int *target_fd = (int *)target_data;
352
            int i, numfds = len / sizeof(int);
353

    
354
            for (i = 0; i < numfds; i++)
355
                target_fd[i] = tswap32(fd[i]);
356
        }
357

    
358
        cmsg = CMSG_NXTHDR(msgh, cmsg);
359
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
360
    }
361

    
362
    msgh->msg_controllen = tswapl(space);
363
}
364

    
365
static long do_setsockopt(int sockfd, int level, int optname, 
366
                          void *optval, socklen_t optlen)
367
{
368
    if (level == SOL_TCP) {
369
        /* TCP options all take an 'int' value.  */
370
        int val;
371

    
372
        if (optlen < sizeof(uint32_t))
373
            return -EINVAL;
374

    
375
        val = tswap32(*(uint32_t *)optval);
376
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
377
    }
378

    
379
    else if (level != SOL_SOCKET) {
380
        gemu_log("Unsupported setsockopt level: %d\n", level);
381
        return -ENOSYS;
382
    }
383

    
384
    switch (optname) {
385
    /* Options with 'int' argument.  */
386
    case SO_DEBUG:
387
    case SO_REUSEADDR:
388
    case SO_TYPE:
389
    case SO_ERROR:
390
    case SO_DONTROUTE:
391
    case SO_BROADCAST:
392
    case SO_SNDBUF:
393
    case SO_RCVBUF:
394
    case SO_KEEPALIVE:
395
    case SO_OOBINLINE:
396
    case SO_NO_CHECK:
397
    case SO_PRIORITY:
398
    case SO_BSDCOMPAT:
399
    case SO_PASSCRED:
400
    case SO_TIMESTAMP:
401
    case SO_RCVLOWAT:
402
    case SO_RCVTIMEO:
403
    case SO_SNDTIMEO:
404
    {
405
        int val;
406
        if (optlen < sizeof(uint32_t))
407
            return -EINVAL;
408
        val = tswap32(*(uint32_t *)optval);
409
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
410
    }
411

    
412
    default:
413
        gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
414
        return -ENOSYS;
415
    }
416
}
417

    
418
static long do_getsockopt(int sockfd, int level, int optname, 
419
                          void *optval, socklen_t *optlen)
420
{
421
    gemu_log("getsockopt not yet supported\n");
422
    return -ENOSYS;
423
}
424

    
425
static long do_socketcall(int num, int32_t *vptr)
426
{
427
    long ret;
428

    
429
    switch(num) {
430
    case SOCKOP_socket:
431
        {
432
            int domain = tswap32(vptr[0]);
433
            int type = tswap32(vptr[1]);
434
            int protocol = tswap32(vptr[2]);
435

    
436
            ret = get_errno(socket(domain, type, protocol));
437
        }
438
        break;
439
    case SOCKOP_bind:
440
        {
441
            int sockfd = tswap32(vptr[0]);
442
            void *target_addr = (void *)tswap32(vptr[1]);
443
            socklen_t addrlen = tswap32(vptr[2]);
444
            void *addr = alloca(addrlen);
445

    
446
            target_to_host_sockaddr(addr, target_addr, addrlen);
447
            ret = get_errno(bind(sockfd, addr, addrlen));
448
        }
449
        break;
450
    case SOCKOP_connect:
451
        {
452
            int sockfd = tswap32(vptr[0]);
453
            void *target_addr = (void *)tswap32(vptr[1]);
454
            socklen_t addrlen = tswap32(vptr[2]);
455
            void *addr = alloca(addrlen);
456

    
457
            target_to_host_sockaddr(addr, target_addr, addrlen);
458
            ret = get_errno(connect(sockfd, addr, addrlen));
459
        }
460
        break;
461
    case SOCKOP_listen:
462
        {
463
            int sockfd = tswap32(vptr[0]);
464
            int backlog = tswap32(vptr[1]);
465

    
466
            ret = get_errno(listen(sockfd, backlog));
467
        }
468
        break;
469
    case SOCKOP_accept:
470
        {
471
            int sockfd = tswap32(vptr[0]);
472
            void *target_addr = (void *)tswap32(vptr[1]);
473
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
474
            socklen_t addrlen = tswap32(*target_addrlen);
475
            void *addr = alloca(addrlen);
476

    
477
            ret = get_errno(accept(sockfd, addr, &addrlen));
478
            if (!is_error(ret)) {
479
                host_to_target_sockaddr(target_addr, addr, addrlen);
480
                *target_addrlen = tswap32(addrlen);
481
            }
482
        }
483
        break;
484
    case SOCKOP_getsockname:
485
        {
486
            int sockfd = tswap32(vptr[0]);
487
            void *target_addr = (void *)tswap32(vptr[1]);
488
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
489
            socklen_t addrlen = tswap32(*target_addrlen);
490
            void *addr = alloca(addrlen);
491

    
492
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
493
            if (!is_error(ret)) {
494
                host_to_target_sockaddr(target_addr, addr, addrlen);
495
                *target_addrlen = tswap32(addrlen);
496
            }
497
        }
498
        break;
499
    case SOCKOP_getpeername:
500
        {
501
            int sockfd = tswap32(vptr[0]);
502
            void *target_addr = (void *)tswap32(vptr[1]);
503
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
504
            socklen_t addrlen = tswap32(*target_addrlen);
505
            void *addr = alloca(addrlen);
506

    
507
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
508
            if (!is_error(ret)) {
509
                host_to_target_sockaddr(target_addr, addr, addrlen);
510
                *target_addrlen = tswap32(addrlen);
511
            }
512
        }
513
        break;
514
    case SOCKOP_socketpair:
515
        {
516
            int domain = tswap32(vptr[0]);
517
            int type = tswap32(vptr[1]);
518
            int protocol = tswap32(vptr[2]);
519
            int32_t *target_tab = (void *)tswap32(vptr[3]);
520
            int tab[2];
521

    
522
            ret = get_errno(socketpair(domain, type, protocol, tab));
523
            if (!is_error(ret)) {
524
                target_tab[0] = tswap32(tab[0]);
525
                target_tab[1] = tswap32(tab[1]);
526
            }
527
        }
528
        break;
529
    case SOCKOP_send:
530
        {
531
            int sockfd = tswap32(vptr[0]);
532
            void *msg = (void *)tswap32(vptr[1]);
533
            size_t len = tswap32(vptr[2]);
534
            int flags = tswap32(vptr[3]);
535

    
536
            ret = get_errno(send(sockfd, msg, len, flags));
537
        }
538
        break;
539
    case SOCKOP_recv:
540
        {
541
            int sockfd = tswap32(vptr[0]);
542
            void *msg = (void *)tswap32(vptr[1]);
543
            size_t len = tswap32(vptr[2]);
544
            int flags = tswap32(vptr[3]);
545

    
546
            ret = get_errno(recv(sockfd, msg, len, flags));
547
        }
548
        break;
549
    case SOCKOP_sendto:
550
        {
551
            int sockfd = tswap32(vptr[0]);
552
            void *msg = (void *)tswap32(vptr[1]);
553
            size_t len = tswap32(vptr[2]);
554
            int flags = tswap32(vptr[3]);
555
            void *target_addr = (void *)tswap32(vptr[4]);
556
            socklen_t addrlen = tswap32(vptr[5]);
557
            void *addr = alloca(addrlen);
558

    
559
            target_to_host_sockaddr(addr, target_addr, addrlen);
560
            ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
561
        }
562
        break;
563
    case SOCKOP_recvfrom:
564
        {
565
            int sockfd = tswap32(vptr[0]);
566
            void *msg = (void *)tswap32(vptr[1]);
567
            size_t len = tswap32(vptr[2]);
568
            int flags = tswap32(vptr[3]);
569
            void *target_addr = (void *)tswap32(vptr[4]);
570
            uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
571
            socklen_t addrlen = tswap32(*target_addrlen);
572
            void *addr = alloca(addrlen);
573

    
574
            ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
575
            if (!is_error(ret)) {
576
                host_to_target_sockaddr(target_addr, addr, addrlen);
577
                *target_addrlen = tswap32(addrlen);
578
            }
579
        }
580
        break;
581
    case SOCKOP_shutdown:
582
        {
583
            int sockfd = tswap32(vptr[0]);
584
            int how = tswap32(vptr[1]);
585

    
586
            ret = get_errno(shutdown(sockfd, how));
587
        }
588
        break;
589
    case SOCKOP_sendmsg:
590
    case SOCKOP_recvmsg:
591
        {
592
            int fd;
593
            struct target_msghdr *msgp;
594
            struct msghdr msg;
595
            int flags, count, i;
596
            struct iovec *vec;
597
            struct target_iovec *target_vec;
598

    
599
            msgp = (void *)tswap32(vptr[1]);
600
            msg.msg_name = (void *)tswapl(msgp->msg_name);
601
            msg.msg_namelen = tswapl(msgp->msg_namelen);
602
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
603
            msg.msg_control = alloca(msg.msg_controllen);
604
            msg.msg_flags = tswap32(msgp->msg_flags);
605

    
606
            count = tswapl(msgp->msg_iovlen);
607
            vec = alloca(count * sizeof(struct iovec));
608
            target_vec = (void *)tswapl(msgp->msg_iov);
609
            for(i = 0;i < count; i++) {
610
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
611
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
612
            }
613
            msg.msg_iovlen = count;
614
            msg.msg_iov = vec;
615

    
616
            fd = tswap32(vptr[0]);
617
            flags = tswap32(vptr[2]);
618
            if (num == SOCKOP_sendmsg) {
619
                target_to_host_cmsg(&msg, msgp);
620
                ret = get_errno(sendmsg(fd, &msg, flags));
621
            } else {
622
                ret = get_errno(recvmsg(fd, &msg, flags));
623
                if (!is_error(ret))
624
                  host_to_target_cmsg(msgp, &msg);
625
            }
626
        }
627
        break;
628
    case SOCKOP_setsockopt:
629
        {
630
            int sockfd = tswap32(vptr[0]);
631
            int level = tswap32(vptr[1]);
632
            int optname = tswap32(vptr[2]);
633
            void *optval = (void *)tswap32(vptr[3]);
634
            socklen_t optlen = tswap32(vptr[4]);
635

    
636
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
637
        }
638
        break;
639
    case SOCKOP_getsockopt:
640
        {
641
            int sockfd = tswap32(vptr[0]);
642
            int level = tswap32(vptr[1]);
643
            int optname = tswap32(vptr[2]);
644
            void *optval = (void *)tswap32(vptr[3]);
645
            uint32_t *target_len = (void *)tswap32(vptr[4]);
646
            socklen_t optlen = tswap32(*target_len);
647

    
648
            ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
649
            if (!is_error(ret))
650
                *target_len = tswap32(optlen);
651
        }
652
        break;
653
    default:
654
        gemu_log("Unsupported socketcall: %d\n", num);
655
        ret = -ENOSYS;
656
        break;
657
    }
658
    return ret;
659
}
660

    
661
/* kernel structure types definitions */
662
#define IFNAMSIZ        16
663

    
664
#define STRUCT(name, list...) STRUCT_ ## name,
665
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
666
enum {
667
#include "syscall_types.h"
668
};
669
#undef STRUCT
670
#undef STRUCT_SPECIAL
671

    
672
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
673
#define STRUCT_SPECIAL(name)
674
#include "syscall_types.h"
675
#undef STRUCT
676
#undef STRUCT_SPECIAL
677

    
678
typedef struct IOCTLEntry {
679
    int target_cmd;
680
    int host_cmd;
681
    const char *name;
682
    int access;
683
    const argtype arg_type[5];
684
} IOCTLEntry;
685

    
686
#define IOC_R 0x0001
687
#define IOC_W 0x0002
688
#define IOC_RW (IOC_R | IOC_W)
689

    
690
#define MAX_STRUCT_SIZE 4096
691

    
692
const IOCTLEntry ioctl_entries[] = {
693
#define IOCTL(cmd, access, types...) \
694
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
695
#include "ioctls.h"
696
    { 0, 0, },
697
};
698

    
699
static long do_ioctl(long fd, long cmd, long arg)
700
{
701
    const IOCTLEntry *ie;
702
    const argtype *arg_type;
703
    long ret;
704
    uint8_t buf_temp[MAX_STRUCT_SIZE];
705

    
706
    ie = ioctl_entries;
707
    for(;;) {
708
        if (ie->target_cmd == 0) {
709
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
710
            return -ENOSYS;
711
        }
712
        if (ie->target_cmd == cmd)
713
            break;
714
        ie++;
715
    }
716
    arg_type = ie->arg_type;
717
#if defined(DEBUG)
718
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
719
#endif
720
    switch(arg_type[0]) {
721
    case TYPE_NULL:
722
        /* no argument */
723
        ret = get_errno(ioctl(fd, ie->host_cmd));
724
        break;
725
    case TYPE_PTRVOID:
726
    case TYPE_INT:
727
        /* int argment */
728
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
729
        break;
730
    case TYPE_PTR:
731
        arg_type++;
732
        switch(ie->access) {
733
        case IOC_R:
734
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
735
            if (!is_error(ret)) {
736
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
737
            }
738
            break;
739
        case IOC_W:
740
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
741
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
742
            break;
743
        default:
744
        case IOC_RW:
745
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
746
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
747
            if (!is_error(ret)) {
748
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
749
            }
750
            break;
751
        }
752
        break;
753
    default:
754
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
755
        ret = -ENOSYS;
756
        break;
757
    }
758
    return ret;
759
}
760

    
761
bitmask_transtbl iflag_tbl[] = {
762
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
763
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
764
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
765
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
766
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
767
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
768
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
769
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
770
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
771
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
772
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
773
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
774
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
775
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
776
        { 0, 0, 0, 0 }
777
};
778

    
779
bitmask_transtbl oflag_tbl[] = {
780
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
781
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
782
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
783
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
784
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
785
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
786
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
787
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
788
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
789
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
790
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
791
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
792
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
793
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
794
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
795
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
796
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
797
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
798
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
799
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
800
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
801
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
802
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
803
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
804
        { 0, 0, 0, 0 }
805
};
806

    
807
bitmask_transtbl cflag_tbl[] = {
808
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
809
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
810
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
811
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
812
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
813
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
814
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
815
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
816
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
817
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
818
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
819
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
820
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
821
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
822
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
823
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
824
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
825
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
826
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
827
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
828
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
829
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
830
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
831
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
832
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
833
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
834
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
835
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
836
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
837
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
838
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
839
        { 0, 0, 0, 0 }
840
};
841

    
842
bitmask_transtbl lflag_tbl[] = {
843
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
844
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
845
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
846
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
847
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
848
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
849
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
850
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
851
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
852
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
853
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
854
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
855
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
856
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
857
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
858
        { 0, 0, 0, 0 }
859
};
860

    
861
static void target_to_host_termios (void *dst, const void *src)
862
{
863
    struct host_termios *host = dst;
864
    const struct target_termios *target = src;
865
    
866
    host->c_iflag = 
867
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
868
    host->c_oflag = 
869
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
870
    host->c_cflag = 
871
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
872
    host->c_lflag = 
873
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
874
    host->c_line = target->c_line;
875
    
876
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
877
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
878
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
879
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
880
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
881
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
882
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
883
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
884
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
885
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
886
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
887
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
888
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
889
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
890
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
891
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
892
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
893
}
894
  
895
static void host_to_target_termios (void *dst, const void *src)
896
{
897
    struct target_termios *target = dst;
898
    const struct host_termios *host = src;
899

    
900
    target->c_iflag = 
901
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
902
    target->c_oflag = 
903
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
904
    target->c_cflag = 
905
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
906
    target->c_lflag = 
907
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
908
    target->c_line = host->c_line;
909
  
910
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
911
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
912
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
913
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
914
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
915
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
916
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
917
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
918
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
919
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
920
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
921
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
922
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
923
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
924
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
925
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
926
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
927
}
928

    
929
StructEntry struct_termios_def = {
930
    .convert = { host_to_target_termios, target_to_host_termios },
931
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
932
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
933
};
934

    
935
#ifdef TARGET_I386
936

    
937
/* NOTE: there is really one LDT for all the threads */
938
uint8_t *ldt_table;
939

    
940
static int read_ldt(void *ptr, unsigned long bytecount)
941
{
942
    int size;
943

    
944
    if (!ldt_table)
945
        return 0;
946
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
947
    if (size > bytecount)
948
        size = bytecount;
949
    memcpy(ptr, ldt_table, size);
950
    return size;
951
}
952

    
953
/* XXX: add locking support */
954
static int write_ldt(CPUX86State *env, 
955
                     void *ptr, unsigned long bytecount, int oldmode)
956
{
957
    struct target_modify_ldt_ldt_s ldt_info;
958
    int seg_32bit, contents, read_exec_only, limit_in_pages;
959
    int seg_not_present, useable;
960
    uint32_t *lp, entry_1, entry_2;
961

    
962
    if (bytecount != sizeof(ldt_info))
963
        return -EINVAL;
964
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
965
    tswap32s(&ldt_info.entry_number);
966
    tswapls((long *)&ldt_info.base_addr);
967
    tswap32s(&ldt_info.limit);
968
    tswap32s(&ldt_info.flags);
969
    
970
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
971
        return -EINVAL;
972
    seg_32bit = ldt_info.flags & 1;
973
    contents = (ldt_info.flags >> 1) & 3;
974
    read_exec_only = (ldt_info.flags >> 3) & 1;
975
    limit_in_pages = (ldt_info.flags >> 4) & 1;
976
    seg_not_present = (ldt_info.flags >> 5) & 1;
977
    useable = (ldt_info.flags >> 6) & 1;
978

    
979
    if (contents == 3) {
980
        if (oldmode)
981
            return -EINVAL;
982
        if (seg_not_present == 0)
983
            return -EINVAL;
984
    }
985
    /* allocate the LDT */
986
    if (!ldt_table) {
987
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
988
        if (!ldt_table)
989
            return -ENOMEM;
990
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
991
        env->ldt.base = ldt_table;
992
        env->ldt.limit = 0xffff;
993
    }
994

    
995
    /* NOTE: same code as Linux kernel */
996
    /* Allow LDTs to be cleared by the user. */
997
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
998
        if (oldmode ||
999
            (contents == 0                &&
1000
             read_exec_only == 1        &&
1001
             seg_32bit == 0                &&
1002
             limit_in_pages == 0        &&
1003
             seg_not_present == 1        &&
1004
             useable == 0 )) {
1005
            entry_1 = 0;
1006
            entry_2 = 0;
1007
            goto install;
1008
        }
1009
    }
1010
    
1011
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1012
        (ldt_info.limit & 0x0ffff);
1013
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1014
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1015
        (ldt_info.limit & 0xf0000) |
1016
        ((read_exec_only ^ 1) << 9) |
1017
        (contents << 10) |
1018
        ((seg_not_present ^ 1) << 15) |
1019
        (seg_32bit << 22) |
1020
        (limit_in_pages << 23) |
1021
        0x7000;
1022
    if (!oldmode)
1023
        entry_2 |= (useable << 20);
1024
    
1025
    /* Install the new entry ...  */
1026
install:
1027
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1028
    lp[0] = tswap32(entry_1);
1029
    lp[1] = tswap32(entry_2);
1030
    return 0;
1031
}
1032

    
1033
/* specific and weird i386 syscalls */
1034
int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1035
{
1036
    int ret = -ENOSYS;
1037
    
1038
    switch (func) {
1039
    case 0:
1040
        ret = read_ldt(ptr, bytecount);
1041
        break;
1042
    case 1:
1043
        ret = write_ldt(env, ptr, bytecount, 1);
1044
        break;
1045
    case 0x11:
1046
        ret = write_ldt(env, ptr, bytecount, 0);
1047
        break;
1048
    }
1049
    return ret;
1050
}
1051

    
1052
/* vm86 emulation */
1053

    
1054
#define SAFE_MASK  (0xDD5)
1055

    
1056
int do_vm86(CPUX86State *env, long subfunction, 
1057
            struct target_vm86plus_struct * target_v86)
1058
{
1059
    TaskState *ts = env->opaque;
1060
    int ret;
1061
    
1062
    switch (subfunction) {
1063
    case TARGET_VM86_REQUEST_IRQ:
1064
    case TARGET_VM86_FREE_IRQ:
1065
    case TARGET_VM86_GET_IRQ_BITS:
1066
    case TARGET_VM86_GET_AND_RESET_IRQ:
1067
        gemu_log("qemu: unsupported vm86 subfunction (%ld)\n", subfunction);
1068
        ret = -EINVAL;
1069
        goto out;
1070
    case TARGET_VM86_PLUS_INSTALL_CHECK:
1071
        /* NOTE: on old vm86 stuff this will return the error
1072
           from verify_area(), because the subfunction is
1073
           interpreted as (invalid) address to vm86_struct.
1074
           So the installation check works.
1075
            */
1076
        ret = 0;
1077
        goto out;
1078
    }
1079

    
1080
    ts->target_v86 = target_v86;
1081
    /* save current CPU regs */
1082
    ts->vm86_saved_regs.eax = 0; /* default vm86 syscall return code */
1083
    ts->vm86_saved_regs.ebx = env->regs[R_EBX];
1084
    ts->vm86_saved_regs.ecx = env->regs[R_ECX];
1085
    ts->vm86_saved_regs.edx = env->regs[R_EDX];
1086
    ts->vm86_saved_regs.esi = env->regs[R_ESI];
1087
    ts->vm86_saved_regs.edi = env->regs[R_EDI];
1088
    ts->vm86_saved_regs.ebp = env->regs[R_EBP];
1089
    ts->vm86_saved_regs.esp = env->regs[R_ESP];
1090
    ts->vm86_saved_regs.eflags = env->eflags;
1091
    ts->vm86_saved_regs.eip  = env->eip;
1092
    ts->vm86_saved_regs.cs = env->segs[R_CS];
1093
    ts->vm86_saved_regs.ss = env->segs[R_SS];
1094
    ts->vm86_saved_regs.ds = env->segs[R_DS];
1095
    ts->vm86_saved_regs.es = env->segs[R_ES];
1096
    ts->vm86_saved_regs.fs = env->segs[R_FS];
1097
    ts->vm86_saved_regs.gs = env->segs[R_GS];
1098

    
1099
    /* build vm86 CPU state */
1100
    env->eflags = (env->eflags & ~SAFE_MASK) | 
1101
        (tswap32(target_v86->regs.eflags) & SAFE_MASK) | VM_MASK;
1102

    
1103
    env->regs[R_EBX] = tswap32(target_v86->regs.ebx);
1104
    env->regs[R_ECX] = tswap32(target_v86->regs.ecx);
1105
    env->regs[R_EDX] = tswap32(target_v86->regs.edx);
1106
    env->regs[R_ESI] = tswap32(target_v86->regs.esi);
1107
    env->regs[R_EDI] = tswap32(target_v86->regs.edi);
1108
    env->regs[R_EBP] = tswap32(target_v86->regs.ebp);
1109
    env->regs[R_ESP] = tswap32(target_v86->regs.esp);
1110
    env->eip = tswap32(target_v86->regs.eip);
1111
    cpu_x86_load_seg(env, R_CS, tswap16(target_v86->regs.cs));
1112
    cpu_x86_load_seg(env, R_SS, tswap16(target_v86->regs.ss));
1113
    cpu_x86_load_seg(env, R_DS, tswap16(target_v86->regs.ds));
1114
    cpu_x86_load_seg(env, R_ES, tswap16(target_v86->regs.es));
1115
    cpu_x86_load_seg(env, R_FS, tswap16(target_v86->regs.fs));
1116
    cpu_x86_load_seg(env, R_GS, tswap16(target_v86->regs.gs));
1117
    ret = tswap32(target_v86->regs.eax); /* eax will be restored at
1118
                                            the end of the syscall */
1119
    /* now the virtual CPU is ready for vm86 execution ! */
1120
 out:
1121
    return ret;
1122
}
1123

    
1124
/* this stack is the equivalent of the kernel stack associated with a
1125
   thread/process */
1126
#define NEW_STACK_SIZE 8192
1127

    
1128
static int clone_func(void *arg)
1129
{
1130
    CPUX86State *env = arg;
1131
    cpu_loop(env);
1132
    /* never exits */
1133
    return 0;
1134
}
1135

    
1136
int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
1137
{
1138
    int ret;
1139
    TaskState *ts;
1140
    uint8_t *new_stack;
1141
    CPUX86State *new_env;
1142
    
1143
    if (flags & CLONE_VM) {
1144
        if (!newsp)
1145
            newsp = env->regs[R_ESP];
1146
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1147
        memset(ts, 0, sizeof(TaskState));
1148
        new_stack = ts->stack;
1149
        ts->used = 1;
1150
        /* add in task state list */
1151
        ts->next = first_task_state;
1152
        first_task_state = ts;
1153
        /* we create a new CPU instance. */
1154
        new_env = cpu_x86_init();
1155
        memcpy(new_env, env, sizeof(CPUX86State));
1156
        new_env->regs[R_ESP] = newsp;
1157
        new_env->regs[R_EAX] = 0;
1158
        new_env->opaque = ts;
1159
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1160
    } else {
1161
        /* if no CLONE_VM, we consider it is a fork */
1162
        if ((flags & ~CSIGNAL) != 0)
1163
            return -EINVAL;
1164
        ret = fork();
1165
    }
1166
    return ret;
1167
}
1168

    
1169
#endif
1170

    
1171
#define high2lowuid(x) (x)
1172
#define high2lowgid(x) (x)
1173
#define low2highuid(x) (x)
1174
#define low2highgid(x) (x)
1175

    
1176
void syscall_init(void)
1177
{
1178
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1179
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1180
#include "syscall_types.h"
1181
#undef STRUCT
1182
#undef STRUCT_SPECIAL
1183
}
1184
                                 
1185
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1186
                long arg4, long arg5, long arg6)
1187
{
1188
    long ret;
1189
    struct stat st;
1190
    struct kernel_statfs *stfs;
1191
    
1192
#ifdef DEBUG
1193
    gemu_log("syscall %d\n", num);
1194
#endif
1195
    switch(num) {
1196
    case TARGET_NR_exit:
1197
#ifdef HAVE_GPROF
1198
        _mcleanup();
1199
#endif
1200
        /* XXX: should free thread stack and CPU env */
1201
        _exit(arg1);
1202
        ret = 0; /* avoid warning */
1203
        break;
1204
    case TARGET_NR_read:
1205
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1206
        break;
1207
    case TARGET_NR_write:
1208
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1209
        break;
1210
    case TARGET_NR_open:
1211
        ret = get_errno(open((const char *)arg1, arg2, arg3));
1212
        break;
1213
    case TARGET_NR_close:
1214
        ret = get_errno(close(arg1));
1215
        break;
1216
    case TARGET_NR_brk:
1217
        ret = do_brk((char *)arg1);
1218
        break;
1219
    case TARGET_NR_fork:
1220
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1221
        break;
1222
    case TARGET_NR_waitpid:
1223
        {
1224
            int *status = (int *)arg2;
1225
            ret = get_errno(waitpid(arg1, status, arg3));
1226
            if (!is_error(ret) && status)
1227
                tswapls((long *)&status);
1228
        }
1229
        break;
1230
    case TARGET_NR_creat:
1231
        ret = get_errno(creat((const char *)arg1, arg2));
1232
        break;
1233
    case TARGET_NR_link:
1234
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1235
        break;
1236
    case TARGET_NR_unlink:
1237
        ret = get_errno(unlink((const char *)arg1));
1238
        break;
1239
    case TARGET_NR_execve:
1240
        {
1241
            char **argp, **envp;
1242
            int argc, envc;
1243
            uint32_t *p;
1244
            char **q;
1245

    
1246
            argc = 0;
1247
            for (p = (void *)arg2; *p; p++)
1248
                argc++;
1249
            envc = 0;
1250
            for (p = (void *)arg3; *p; p++)
1251
                envc++;
1252

    
1253
            argp = alloca((argc + 1) * sizeof(void *));
1254
            envp = alloca((envc + 1) * sizeof(void *));
1255

    
1256
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1257
                *q = (void *)tswap32(*p);
1258
            *q = NULL;
1259

    
1260
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1261
                *q = (void *)tswap32(*p);
1262
            *q = NULL;
1263

    
1264
            ret = get_errno(execve((const char *)arg1, argp, envp));
1265
        }
1266
        break;
1267
    case TARGET_NR_chdir:
1268
        ret = get_errno(chdir((const char *)arg1));
1269
        break;
1270
    case TARGET_NR_time:
1271
        {
1272
            int *time_ptr = (int *)arg1;
1273
            ret = get_errno(time((time_t *)time_ptr));
1274
            if (!is_error(ret) && time_ptr)
1275
                tswap32s(time_ptr);
1276
        }
1277
        break;
1278
    case TARGET_NR_mknod:
1279
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1280
        break;
1281
    case TARGET_NR_chmod:
1282
        ret = get_errno(chmod((const char *)arg1, arg2));
1283
        break;
1284
    case TARGET_NR_lchown:
1285
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1286
        break;
1287
    case TARGET_NR_break:
1288
        goto unimplemented;
1289
    case TARGET_NR_oldstat:
1290
        goto unimplemented;
1291
    case TARGET_NR_lseek:
1292
        ret = get_errno(lseek(arg1, arg2, arg3));
1293
        break;
1294
    case TARGET_NR_getpid:
1295
        ret = get_errno(getpid());
1296
        break;
1297
    case TARGET_NR_mount:
1298
        /* need to look at the data field */
1299
        goto unimplemented;
1300
    case TARGET_NR_umount:
1301
        ret = get_errno(umount((const char *)arg1));
1302
        break;
1303
    case TARGET_NR_setuid:
1304
        ret = get_errno(setuid(low2highuid(arg1)));
1305
        break;
1306
    case TARGET_NR_getuid:
1307
        ret = get_errno(getuid());
1308
        break;
1309
    case TARGET_NR_stime:
1310
        {
1311
            int *time_ptr = (int *)arg1;
1312
            if (time_ptr)
1313
                tswap32s(time_ptr);
1314
            ret = get_errno(stime((time_t *)time_ptr));
1315
        }
1316
        break;
1317
    case TARGET_NR_ptrace:
1318
        goto unimplemented;
1319
    case TARGET_NR_alarm:
1320
        ret = alarm(arg1);
1321
        break;
1322
    case TARGET_NR_oldfstat:
1323
        goto unimplemented;
1324
    case TARGET_NR_pause:
1325
        ret = get_errno(pause());
1326
        break;
1327
    case TARGET_NR_utime:
1328
        goto unimplemented;
1329
    case TARGET_NR_stty:
1330
        goto unimplemented;
1331
    case TARGET_NR_gtty:
1332
        goto unimplemented;
1333
    case TARGET_NR_access:
1334
        ret = get_errno(access((const char *)arg1, arg2));
1335
        break;
1336
    case TARGET_NR_nice:
1337
        ret = get_errno(nice(arg1));
1338
        break;
1339
    case TARGET_NR_ftime:
1340
        goto unimplemented;
1341
    case TARGET_NR_sync:
1342
        sync();
1343
        ret = 0;
1344
        break;
1345
    case TARGET_NR_kill:
1346
        ret = get_errno(kill(arg1, arg2));
1347
        break;
1348
    case TARGET_NR_rename:
1349
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1350
        break;
1351
    case TARGET_NR_mkdir:
1352
        ret = get_errno(mkdir((const char *)arg1, arg2));
1353
        break;
1354
    case TARGET_NR_rmdir:
1355
        ret = get_errno(rmdir((const char *)arg1));
1356
        break;
1357
    case TARGET_NR_dup:
1358
        ret = get_errno(dup(arg1));
1359
        break;
1360
    case TARGET_NR_pipe:
1361
        {
1362
            int *pipe_ptr = (int *)arg1;
1363
            ret = get_errno(pipe(pipe_ptr));
1364
            if (!is_error(ret)) {
1365
                tswap32s(&pipe_ptr[0]);
1366
                tswap32s(&pipe_ptr[1]);
1367
            }
1368
        }
1369
        break;
1370
    case TARGET_NR_times:
1371
        {
1372
            struct target_tms *tmsp = (void *)arg1;
1373
            struct tms tms;
1374
            ret = get_errno(times(&tms));
1375
            if (tmsp) {
1376
                tmsp->tms_utime = tswapl(tms.tms_utime);
1377
                tmsp->tms_stime = tswapl(tms.tms_stime);
1378
                tmsp->tms_cutime = tswapl(tms.tms_cutime);
1379
                tmsp->tms_cstime = tswapl(tms.tms_cstime);
1380
            }
1381
        }
1382
        break;
1383
    case TARGET_NR_prof:
1384
        goto unimplemented;
1385
    case TARGET_NR_setgid:
1386
        ret = get_errno(setgid(low2highgid(arg1)));
1387
        break;
1388
    case TARGET_NR_getgid:
1389
        ret = get_errno(getgid());
1390
        break;
1391
    case TARGET_NR_signal:
1392
        goto unimplemented;
1393
    case TARGET_NR_geteuid:
1394
        ret = get_errno(geteuid());
1395
        break;
1396
    case TARGET_NR_getegid:
1397
        ret = get_errno(getegid());
1398
        break;
1399
    case TARGET_NR_acct:
1400
        goto unimplemented;
1401
    case TARGET_NR_umount2:
1402
        ret = get_errno(umount2((const char *)arg1, arg2));
1403
        break;
1404
    case TARGET_NR_lock:
1405
        goto unimplemented;
1406
    case TARGET_NR_ioctl:
1407
        ret = do_ioctl(arg1, arg2, arg3);
1408
        break;
1409
    case TARGET_NR_fcntl:
1410
        switch(arg2) {
1411
        case F_GETLK:
1412
        case F_SETLK:
1413
        case F_SETLKW:
1414
            goto unimplemented;
1415
        default:
1416
            ret = get_errno(fcntl(arg1, arg2, arg3));
1417
            break;
1418
        }
1419
        break;
1420
    case TARGET_NR_mpx:
1421
        goto unimplemented;
1422
    case TARGET_NR_setpgid:
1423
        ret = get_errno(setpgid(arg1, arg2));
1424
        break;
1425
    case TARGET_NR_ulimit:
1426
        goto unimplemented;
1427
    case TARGET_NR_oldolduname:
1428
        goto unimplemented;
1429
    case TARGET_NR_umask:
1430
        ret = get_errno(umask(arg1));
1431
        break;
1432
    case TARGET_NR_chroot:
1433
        ret = get_errno(chroot((const char *)arg1));
1434
        break;
1435
    case TARGET_NR_ustat:
1436
        goto unimplemented;
1437
    case TARGET_NR_dup2:
1438
        ret = get_errno(dup2(arg1, arg2));
1439
        break;
1440
    case TARGET_NR_getppid:
1441
        ret = get_errno(getppid());
1442
        break;
1443
    case TARGET_NR_getpgrp:
1444
        ret = get_errno(getpgrp());
1445
        break;
1446
    case TARGET_NR_setsid:
1447
        ret = get_errno(setsid());
1448
        break;
1449
    case TARGET_NR_sigaction:
1450
        {
1451
            struct target_old_sigaction *old_act = (void *)arg2;
1452
            struct target_old_sigaction *old_oact = (void *)arg3;
1453
            struct target_sigaction act, oact, *pact;
1454
            if (old_act) {
1455
                act._sa_handler = old_act->_sa_handler;
1456
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1457
                act.sa_flags = old_act->sa_flags;
1458
                act.sa_restorer = old_act->sa_restorer;
1459
                pact = &act;
1460
            } else {
1461
                pact = NULL;
1462
            }
1463
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1464
            if (!is_error(ret) && old_oact) {
1465
                old_oact->_sa_handler = oact._sa_handler;
1466
                old_oact->sa_mask = oact.sa_mask.sig[0];
1467
                old_oact->sa_flags = oact.sa_flags;
1468
                old_oact->sa_restorer = oact.sa_restorer;
1469
            }
1470
        }
1471
        break;
1472
    case TARGET_NR_rt_sigaction:
1473
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1474
        break;
1475
    case TARGET_NR_sgetmask:
1476
        {
1477
            sigset_t cur_set;
1478
            target_ulong target_set;
1479
            sigprocmask(0, NULL, &cur_set);
1480
            host_to_target_old_sigset(&target_set, &cur_set);
1481
            ret = target_set;
1482
        }
1483
        break;
1484
    case TARGET_NR_ssetmask:
1485
        {
1486
            sigset_t set, oset, cur_set;
1487
            target_ulong target_set = arg1;
1488
            sigprocmask(0, NULL, &cur_set);
1489
            target_to_host_old_sigset(&set, &target_set);
1490
            sigorset(&set, &set, &cur_set);
1491
            sigprocmask(SIG_SETMASK, &set, &oset);
1492
            host_to_target_old_sigset(&target_set, &oset);
1493
            ret = target_set;
1494
        }
1495
        break;
1496
    case TARGET_NR_sigprocmask:
1497
        {
1498
            int how = arg1;
1499
            sigset_t set, oldset, *set_ptr;
1500
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1501
            
1502
            if (pset) {
1503
                switch(how) {
1504
                case TARGET_SIG_BLOCK:
1505
                    how = SIG_BLOCK;
1506
                    break;
1507
                case TARGET_SIG_UNBLOCK:
1508
                    how = SIG_UNBLOCK;
1509
                    break;
1510
                case TARGET_SIG_SETMASK:
1511
                    how = SIG_SETMASK;
1512
                    break;
1513
                default:
1514
                    ret = -EINVAL;
1515
                    goto fail;
1516
                }
1517
                target_to_host_old_sigset(&set, pset);
1518
                set_ptr = &set;
1519
            } else {
1520
                how = 0;
1521
                set_ptr = NULL;
1522
            }
1523
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1524
            if (!is_error(ret) && poldset) {
1525
                host_to_target_old_sigset(poldset, &oldset);
1526
            }
1527
        }
1528
        break;
1529
    case TARGET_NR_rt_sigprocmask:
1530
        {
1531
            int how = arg1;
1532
            sigset_t set, oldset, *set_ptr;
1533
            target_sigset_t *pset = (void *)arg2;
1534
            target_sigset_t *poldset = (void *)arg3;
1535
            
1536
            if (pset) {
1537
                switch(how) {
1538
                case TARGET_SIG_BLOCK:
1539
                    how = SIG_BLOCK;
1540
                    break;
1541
                case TARGET_SIG_UNBLOCK:
1542
                    how = SIG_UNBLOCK;
1543
                    break;
1544
                case TARGET_SIG_SETMASK:
1545
                    how = SIG_SETMASK;
1546
                    break;
1547
                default:
1548
                    ret = -EINVAL;
1549
                    goto fail;
1550
                }
1551
                target_to_host_sigset(&set, pset);
1552
                set_ptr = &set;
1553
            } else {
1554
                how = 0;
1555
                set_ptr = NULL;
1556
            }
1557
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1558
            if (!is_error(ret) && poldset) {
1559
                host_to_target_sigset(poldset, &oldset);
1560
            }
1561
        }
1562
        break;
1563
    case TARGET_NR_sigpending:
1564
        {
1565
            sigset_t set;
1566
            ret = get_errno(sigpending(&set));
1567
            if (!is_error(ret)) {
1568
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1569
            }
1570
        }
1571
        break;
1572
    case TARGET_NR_rt_sigpending:
1573
        {
1574
            sigset_t set;
1575
            ret = get_errno(sigpending(&set));
1576
            if (!is_error(ret)) {
1577
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1578
            }
1579
        }
1580
        break;
1581
    case TARGET_NR_sigsuspend:
1582
        {
1583
            sigset_t set;
1584
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1585
            ret = get_errno(sigsuspend(&set));
1586
        }
1587
        break;
1588
    case TARGET_NR_rt_sigsuspend:
1589
        {
1590
            sigset_t set;
1591
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1592
            ret = get_errno(sigsuspend(&set));
1593
        }
1594
        break;
1595
    case TARGET_NR_rt_sigtimedwait:
1596
        {
1597
            target_sigset_t *target_set = (void *)arg1;
1598
            target_siginfo_t *target_uinfo = (void *)arg2;
1599
            struct target_timespec *target_uts = (void *)arg3;
1600
            sigset_t set;
1601
            struct timespec uts, *puts;
1602
            siginfo_t uinfo;
1603
            
1604
            target_to_host_sigset(&set, target_set);
1605
            if (target_uts) {
1606
                puts = &uts;
1607
                puts->tv_sec = tswapl(target_uts->tv_sec);
1608
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1609
            } else {
1610
                puts = NULL;
1611
            }
1612
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1613
            if (!is_error(ret) && target_uinfo) {
1614
                host_to_target_siginfo(target_uinfo, &uinfo);
1615
            }
1616
        }
1617
        break;
1618
    case TARGET_NR_rt_sigqueueinfo:
1619
        {
1620
            siginfo_t uinfo;
1621
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1622
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1623
        }
1624
        break;
1625
    case TARGET_NR_sigreturn:
1626
        /* NOTE: ret is eax, so not transcoding must be done */
1627
        ret = do_sigreturn(cpu_env);
1628
        break;
1629
    case TARGET_NR_rt_sigreturn:
1630
        /* NOTE: ret is eax, so not transcoding must be done */
1631
        ret = do_rt_sigreturn(cpu_env);
1632
        break;
1633
    case TARGET_NR_setreuid:
1634
        ret = get_errno(setreuid(arg1, arg2));
1635
        break;
1636
    case TARGET_NR_setregid:
1637
        ret = get_errno(setregid(arg1, arg2));
1638
        break;
1639
    case TARGET_NR_sethostname:
1640
        ret = get_errno(sethostname((const char *)arg1, arg2));
1641
        break;
1642
    case TARGET_NR_setrlimit:
1643
        {
1644
            /* XXX: convert resource ? */
1645
            int resource = arg1;
1646
            struct target_rlimit *target_rlim = (void *)arg2;
1647
            struct rlimit rlim;
1648
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1649
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1650
            ret = get_errno(setrlimit(resource, &rlim));
1651
        }
1652
        break;
1653
    case TARGET_NR_getrlimit:
1654
        {
1655
            /* XXX: convert resource ? */
1656
            int resource = arg1;
1657
            struct target_rlimit *target_rlim = (void *)arg2;
1658
            struct rlimit rlim;
1659
            
1660
            ret = get_errno(getrlimit(resource, &rlim));
1661
            if (!is_error(ret)) {
1662
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1663
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1664
            }
1665
        }
1666
        break;
1667
    case TARGET_NR_getrusage:
1668
        goto unimplemented;
1669
    case TARGET_NR_gettimeofday:
1670
        {
1671
            struct target_timeval *target_tv = (void *)arg1;
1672
            struct timeval tv;
1673
            ret = get_errno(gettimeofday(&tv, NULL));
1674
            if (!is_error(ret)) {
1675
                host_to_target_timeval(target_tv, &tv);
1676
            }
1677
        }
1678
        break;
1679
    case TARGET_NR_settimeofday:
1680
        {
1681
            struct target_timeval *target_tv = (void *)arg1;
1682
            struct timeval tv;
1683
            target_to_host_timeval(&tv, target_tv);
1684
            ret = get_errno(settimeofday(&tv, NULL));
1685
        }
1686
        break;
1687
    case TARGET_NR_getgroups:
1688
        goto unimplemented;
1689
    case TARGET_NR_setgroups:
1690
        goto unimplemented;
1691
    case TARGET_NR_select:
1692
        goto unimplemented;
1693
    case TARGET_NR_symlink:
1694
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1695
        break;
1696
    case TARGET_NR_oldlstat:
1697
        goto unimplemented;
1698
    case TARGET_NR_readlink:
1699
        ret = get_errno(readlink((const char *)arg1, (char *)arg2, arg3));
1700
        break;
1701
    case TARGET_NR_uselib:
1702
        goto unimplemented;
1703
    case TARGET_NR_swapon:
1704
        ret = get_errno(swapon((const char *)arg1, arg2));
1705
        break;
1706
    case TARGET_NR_reboot:
1707
        goto unimplemented;
1708
    case TARGET_NR_readdir:
1709
        goto unimplemented;
1710
#ifdef TARGET_I386
1711
    case TARGET_NR_mmap:
1712
        {
1713
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1714
            vptr = (uint32_t *)arg1;
1715
            v1 = tswap32(vptr[0]);
1716
            v2 = tswap32(vptr[1]);
1717
            v3 = tswap32(vptr[2]);
1718
            v4 = tswap32(vptr[3]);
1719
            v5 = tswap32(vptr[4]);
1720
            v6 = tswap32(vptr[5]);
1721
            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
1722
        }
1723
        break;
1724
#endif
1725
#ifdef TARGET_I386
1726
    case TARGET_NR_mmap2:
1727
#else
1728
    case TARGET_NR_mmap:
1729
#endif
1730
        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
1731
        break;
1732
    case TARGET_NR_munmap:
1733
        ret = get_errno(munmap((void *)arg1, arg2));
1734
        break;
1735
    case TARGET_NR_mprotect:
1736
        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
1737
        break;
1738
    case TARGET_NR_mremap:
1739
        ret = get_errno((long)mremap((void *)arg1, arg2, arg3, arg4));
1740
        break;
1741
    case TARGET_NR_msync:
1742
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1743
        break;
1744
    case TARGET_NR_mlock:
1745
        ret = get_errno(mlock((void *)arg1, arg2));
1746
        break;
1747
    case TARGET_NR_munlock:
1748
        ret = get_errno(munlock((void *)arg1, arg2));
1749
        break;
1750
    case TARGET_NR_mlockall:
1751
        ret = get_errno(mlockall(arg1));
1752
        break;
1753
    case TARGET_NR_munlockall:
1754
        ret = get_errno(munlockall());
1755
        break;
1756
    case TARGET_NR_truncate:
1757
        ret = get_errno(truncate((const char *)arg1, arg2));
1758
        break;
1759
    case TARGET_NR_ftruncate:
1760
        ret = get_errno(ftruncate(arg1, arg2));
1761
        break;
1762
    case TARGET_NR_fchmod:
1763
        ret = get_errno(fchmod(arg1, arg2));
1764
        break;
1765
    case TARGET_NR_fchown:
1766
        ret = get_errno(fchown(arg1, arg2, arg3));
1767
        break;
1768
    case TARGET_NR_getpriority:
1769
        ret = get_errno(getpriority(arg1, arg2));
1770
        break;
1771
    case TARGET_NR_setpriority:
1772
        ret = get_errno(setpriority(arg1, arg2, arg3));
1773
        break;
1774
    case TARGET_NR_profil:
1775
        goto unimplemented;
1776
    case TARGET_NR_statfs:
1777
        stfs = (void *)arg2;
1778
        ret = get_errno(sys_statfs((const char *)arg1, stfs));
1779
    convert_statfs:
1780
        if (!is_error(ret)) {
1781
            tswap32s(&stfs->f_type);
1782
            tswap32s(&stfs->f_bsize);
1783
            tswap32s(&stfs->f_blocks);
1784
            tswap32s(&stfs->f_bfree);
1785
            tswap32s(&stfs->f_bavail);
1786
            tswap32s(&stfs->f_files);
1787
            tswap32s(&stfs->f_ffree);
1788
            tswap32s(&stfs->f_fsid.val[0]);
1789
            tswap32s(&stfs->f_fsid.val[1]);
1790
            tswap32s(&stfs->f_namelen);
1791
        }
1792
        break;
1793
    case TARGET_NR_fstatfs:
1794
        stfs = (void *)arg2;
1795
        ret = get_errno(sys_fstatfs(arg1, stfs));
1796
        goto convert_statfs;
1797
    case TARGET_NR_ioperm:
1798
        goto unimplemented;
1799
    case TARGET_NR_socketcall:
1800
        ret = do_socketcall(arg1, (int32_t *)arg2);
1801
        break;
1802
    case TARGET_NR_syslog:
1803
        goto unimplemented;
1804
    case TARGET_NR_setitimer:
1805
        {
1806
            struct target_itimerval *target_value = (void *)arg2;
1807
            struct target_itimerval *target_ovalue = (void *)arg3;
1808
            struct itimerval value, ovalue, *pvalue;
1809

    
1810
            if (target_value) {
1811
                pvalue = &value;
1812
                target_to_host_timeval(&pvalue->it_interval, 
1813
                                       &target_value->it_interval);
1814
                target_to_host_timeval(&pvalue->it_value, 
1815
                                       &target_value->it_value);
1816
            } else {
1817
                pvalue = NULL;
1818
            }
1819
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1820
            if (!is_error(ret) && target_ovalue) {
1821
                host_to_target_timeval(&target_ovalue->it_interval, 
1822
                                       &ovalue.it_interval);
1823
                host_to_target_timeval(&target_ovalue->it_value, 
1824
                                       &ovalue.it_value);
1825
            }
1826
        }
1827
        break;
1828
    case TARGET_NR_getitimer:
1829
        {
1830
            struct target_itimerval *target_value = (void *)arg2;
1831
            struct itimerval value;
1832
            
1833
            ret = get_errno(getitimer(arg1, &value));
1834
            if (!is_error(ret) && target_value) {
1835
                host_to_target_timeval(&target_value->it_interval, 
1836
                                       &value.it_interval);
1837
                host_to_target_timeval(&target_value->it_value, 
1838
                                       &value.it_value);
1839
            }
1840
        }
1841
        break;
1842
    case TARGET_NR_stat:
1843
        ret = get_errno(stat((const char *)arg1, &st));
1844
        goto do_stat;
1845
    case TARGET_NR_lstat:
1846
        ret = get_errno(lstat((const char *)arg1, &st));
1847
        goto do_stat;
1848
    case TARGET_NR_fstat:
1849
        {
1850
            ret = get_errno(fstat(arg1, &st));
1851
        do_stat:
1852
            if (!is_error(ret)) {
1853
                struct target_stat *target_st = (void *)arg2;
1854
                target_st->st_dev = tswap16(st.st_dev);
1855
                target_st->st_ino = tswapl(st.st_ino);
1856
                target_st->st_mode = tswap16(st.st_mode);
1857
                target_st->st_nlink = tswap16(st.st_nlink);
1858
                target_st->st_uid = tswap16(st.st_uid);
1859
                target_st->st_gid = tswap16(st.st_gid);
1860
                target_st->st_rdev = tswap16(st.st_rdev);
1861
                target_st->st_size = tswapl(st.st_size);
1862
                target_st->st_blksize = tswapl(st.st_blksize);
1863
                target_st->st_blocks = tswapl(st.st_blocks);
1864
                target_st->target_st_atime = tswapl(st.st_atime);
1865
                target_st->target_st_mtime = tswapl(st.st_mtime);
1866
                target_st->target_st_ctime = tswapl(st.st_ctime);
1867
            }
1868
        }
1869
        break;
1870
    case TARGET_NR_olduname:
1871
        goto unimplemented;
1872
    case TARGET_NR_iopl:
1873
        goto unimplemented;
1874
    case TARGET_NR_vhangup:
1875
        ret = get_errno(vhangup());
1876
        break;
1877
    case TARGET_NR_idle:
1878
        goto unimplemented;
1879
    case TARGET_NR_wait4:
1880
        {
1881
            int status;
1882
            target_long *status_ptr = (void *)arg2;
1883
            struct rusage rusage, *rusage_ptr;
1884
            struct target_rusage *target_rusage = (void *)arg4;
1885
            if (target_rusage)
1886
                rusage_ptr = &rusage;
1887
            else
1888
                rusage_ptr = NULL;
1889
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1890
            if (!is_error(ret)) {
1891
                if (status_ptr)
1892
                    *status_ptr = tswap32(status);
1893
                if (target_rusage) {
1894
                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
1895
                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
1896
                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
1897
                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
1898
                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
1899
                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
1900
                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
1901
                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
1902
                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
1903
                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
1904
                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
1905
                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
1906
                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
1907
                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
1908
                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
1909
                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
1910
                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
1911
                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
1912
                }
1913
            }
1914
        }
1915
        break;
1916
    case TARGET_NR_swapoff:
1917
        ret = get_errno(swapoff((const char *)arg1));
1918
        break;
1919
    case TARGET_NR_sysinfo:
1920
        goto unimplemented;
1921
    case TARGET_NR_ipc:
1922
        goto unimplemented;
1923
    case TARGET_NR_fsync:
1924
        ret = get_errno(fsync(arg1));
1925
        break;
1926
    case TARGET_NR_clone:
1927
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
1928
        break;
1929
    case TARGET_NR_setdomainname:
1930
        ret = get_errno(setdomainname((const char *)arg1, arg2));
1931
        break;
1932
    case TARGET_NR_uname:
1933
        /* no need to transcode because we use the linux syscall */
1934
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
1935
        break;
1936
#ifdef TARGET_I386
1937
    case TARGET_NR_modify_ldt:
1938
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
1939
        break;
1940
    case TARGET_NR_vm86old:
1941
        goto unimplemented;
1942
    case TARGET_NR_vm86:
1943
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
1944
        break;
1945
#endif
1946
    case TARGET_NR_adjtimex:
1947
        goto unimplemented;
1948
    case TARGET_NR_create_module:
1949
    case TARGET_NR_init_module:
1950
    case TARGET_NR_delete_module:
1951
    case TARGET_NR_get_kernel_syms:
1952
        goto unimplemented;
1953
    case TARGET_NR_quotactl:
1954
        goto unimplemented;
1955
    case TARGET_NR_getpgid:
1956
        ret = get_errno(getpgid(arg1));
1957
        break;
1958
    case TARGET_NR_fchdir:
1959
        ret = get_errno(fchdir(arg1));
1960
        break;
1961
    case TARGET_NR_bdflush:
1962
        goto unimplemented;
1963
    case TARGET_NR_sysfs:
1964
        goto unimplemented;
1965
    case TARGET_NR_personality:
1966
        ret = get_errno(personality(arg1));
1967
        break;
1968
    case TARGET_NR_afs_syscall:
1969
        goto unimplemented;
1970
    case TARGET_NR_setfsuid:
1971
        ret = get_errno(setfsuid(arg1));
1972
        break;
1973
    case TARGET_NR_setfsgid:
1974
        ret = get_errno(setfsgid(arg1));
1975
        break;
1976
    case TARGET_NR__llseek:
1977
        {
1978
            int64_t res;
1979
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
1980
            *(int64_t *)arg4 = tswap64(res);
1981
        }
1982
        break;
1983
    case TARGET_NR_getdents:
1984
#if TARGET_LONG_SIZE != 4
1985
#error not supported
1986
#endif
1987
        {
1988
            struct dirent *dirp = (void *)arg2;
1989
            long count = arg3;
1990

    
1991
            ret = get_errno(sys_getdents(arg1, dirp, count));
1992
            if (!is_error(ret)) {
1993
                struct dirent *de;
1994
                int len = ret;
1995
                int reclen;
1996
                de = dirp;
1997
                while (len > 0) {
1998
                    reclen = de->d_reclen;
1999
                    if (reclen > len)
2000
                        break;
2001
                    de->d_reclen = tswap16(reclen);
2002
                    tswapls(&de->d_ino);
2003
                    tswapls(&de->d_off);
2004
                    de = (struct dirent *)((char *)de + reclen);
2005
                    len -= reclen;
2006
                }
2007
            }
2008
        }
2009
        break;
2010
    case TARGET_NR_getdents64:
2011
        {
2012
            struct dirent64 *dirp = (void *)arg2;
2013
            long count = arg3;
2014
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2015
            if (!is_error(ret)) {
2016
                struct dirent64 *de;
2017
                int len = ret;
2018
                int reclen;
2019
                de = dirp;
2020
                while (len > 0) {
2021
                    reclen = de->d_reclen;
2022
                    if (reclen > len)
2023
                        break;
2024
                    de->d_reclen = tswap16(reclen);
2025
                    tswap64s(&de->d_ino);
2026
                    tswap64s(&de->d_off);
2027
                    de = (struct dirent64 *)((char *)de + reclen);
2028
                    len -= reclen;
2029
                }
2030
            }
2031
        }
2032
        break;
2033
    case TARGET_NR__newselect:
2034
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2035
                        (void *)arg5);
2036
        break;
2037
    case TARGET_NR_poll:
2038
        {
2039
            struct target_pollfd *target_pfd = (void *)arg1;
2040
            unsigned int nfds = arg2;
2041
            int timeout = arg3;
2042
            struct pollfd *pfd;
2043
            unsigned int i;
2044

    
2045
            pfd = alloca(sizeof(struct pollfd) * nfds);
2046
            for(i = 0; i < nfds; i++) {
2047
                pfd[i].fd = tswap32(target_pfd[i].fd);
2048
                pfd[i].events = tswap16(target_pfd[i].events);
2049
            }
2050
            ret = get_errno(poll(pfd, nfds, timeout));
2051
            if (!is_error(ret)) {
2052
                for(i = 0; i < nfds; i++) {
2053
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2054
                }
2055
            }
2056
        }
2057
        break;
2058
    case TARGET_NR_flock:
2059
        /* NOTE: the flock constant seems to be the same for every
2060
           Linux platform */
2061
        ret = get_errno(flock(arg1, arg2));
2062
        break;
2063
    case TARGET_NR_readv:
2064
        {
2065
            int count = arg3;
2066
            int i;
2067
            struct iovec *vec;
2068
            struct target_iovec *target_vec = (void *)arg2;
2069

    
2070
            vec = alloca(count * sizeof(struct iovec));
2071
            for(i = 0;i < count; i++) {
2072
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2073
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2074
            }
2075
            ret = get_errno(readv(arg1, vec, count));
2076
        }
2077
        break;
2078
    case TARGET_NR_writev:
2079
        {
2080
            int count = arg3;
2081
            int i;
2082
            struct iovec *vec;
2083
            struct target_iovec *target_vec = (void *)arg2;
2084

    
2085
            vec = alloca(count * sizeof(struct iovec));
2086
            for(i = 0;i < count; i++) {
2087
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2088
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2089
            }
2090
            ret = get_errno(writev(arg1, vec, count));
2091
        }
2092
        break;
2093
    case TARGET_NR_getsid:
2094
        ret = get_errno(getsid(arg1));
2095
        break;
2096
    case TARGET_NR_fdatasync:
2097
        ret = get_errno(fdatasync(arg1));
2098
        break;
2099
    case TARGET_NR__sysctl:
2100
        goto unimplemented;
2101
    case TARGET_NR_sched_setparam:
2102
        {
2103
            struct sched_param *target_schp = (void *)arg2;
2104
            struct sched_param schp;
2105
            schp.sched_priority = tswap32(target_schp->sched_priority);
2106
            ret = get_errno(sched_setparam(arg1, &schp));
2107
        }
2108
        break;
2109
    case TARGET_NR_sched_getparam:
2110
        {
2111
            struct sched_param *target_schp = (void *)arg2;
2112
            struct sched_param schp;
2113
            ret = get_errno(sched_getparam(arg1, &schp));
2114
            if (!is_error(ret)) {
2115
                target_schp->sched_priority = tswap32(schp.sched_priority);
2116
            }
2117
        }
2118
        break;
2119
    case TARGET_NR_sched_setscheduler:
2120
        {
2121
            struct sched_param *target_schp = (void *)arg3;
2122
            struct sched_param schp;
2123
            schp.sched_priority = tswap32(target_schp->sched_priority);
2124
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2125
        }
2126
        break;
2127
    case TARGET_NR_sched_getscheduler:
2128
        ret = get_errno(sched_getscheduler(arg1));
2129
        break;
2130
    case TARGET_NR_sched_yield:
2131
        ret = get_errno(sched_yield());
2132
        break;
2133
    case TARGET_NR_sched_get_priority_max:
2134
        ret = get_errno(sched_get_priority_max(arg1));
2135
        break;
2136
    case TARGET_NR_sched_get_priority_min:
2137
        ret = get_errno(sched_get_priority_min(arg1));
2138
        break;
2139
    case TARGET_NR_sched_rr_get_interval:
2140
        {
2141
            struct target_timespec *target_ts = (void *)arg2;
2142
            struct timespec ts;
2143
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2144
            if (!is_error(ret)) {
2145
                target_ts->tv_sec = tswapl(ts.tv_sec);
2146
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2147
            }
2148
        }
2149
        break;
2150
    case TARGET_NR_nanosleep:
2151
        {
2152
            struct target_timespec *target_req = (void *)arg1;
2153
            struct target_timespec *target_rem = (void *)arg2;
2154
            struct timespec req, rem;
2155
            req.tv_sec = tswapl(target_req->tv_sec);
2156
            req.tv_nsec = tswapl(target_req->tv_nsec);
2157
            ret = get_errno(nanosleep(&req, &rem));
2158
            if (target_rem) {
2159
                target_rem->tv_sec = tswapl(rem.tv_sec);
2160
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2161
            }
2162
        }
2163
        break;
2164
    case TARGET_NR_setresuid:
2165
        ret = get_errno(setresuid(low2highuid(arg1), 
2166
                                  low2highuid(arg2), 
2167
                                  low2highuid(arg3)));
2168
        break;
2169
    case TARGET_NR_getresuid:
2170
        {
2171
            int ruid, euid, suid;
2172
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2173
            if (!is_error(ret)) {
2174
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2175
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2176
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2177
            }
2178
        }
2179
        break;
2180
    case TARGET_NR_setresgid:
2181
        ret = get_errno(setresgid(low2highgid(arg1), 
2182
                                  low2highgid(arg2), 
2183
                                  low2highgid(arg3)));
2184
        break;
2185
    case TARGET_NR_getresgid:
2186
        {
2187
            int rgid, egid, sgid;
2188
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2189
            if (!is_error(ret)) {
2190
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2191
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2192
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2193
            }
2194
        }
2195
        break;
2196
    case TARGET_NR_query_module:
2197
        goto unimplemented;
2198
    case TARGET_NR_nfsservctl:
2199
        goto unimplemented;
2200
    case TARGET_NR_prctl:
2201
        goto unimplemented;
2202
    case TARGET_NR_pread:
2203
        goto unimplemented;
2204
    case TARGET_NR_pwrite:
2205
        goto unimplemented;
2206
    case TARGET_NR_chown:
2207
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2208
        break;
2209
    case TARGET_NR_getcwd:
2210
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2211
        break;
2212
    case TARGET_NR_capget:
2213
        goto unimplemented;
2214
    case TARGET_NR_capset:
2215
        goto unimplemented;
2216
    case TARGET_NR_sigaltstack:
2217
        goto unimplemented;
2218
    case TARGET_NR_sendfile:
2219
        goto unimplemented;
2220
    case TARGET_NR_getpmsg:
2221
        goto unimplemented;
2222
    case TARGET_NR_putpmsg:
2223
        goto unimplemented;
2224
    case TARGET_NR_vfork:
2225
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2226
        break;
2227
    case TARGET_NR_ugetrlimit:
2228
        goto unimplemented;
2229
    case TARGET_NR_truncate64:
2230
        goto unimplemented;
2231
    case TARGET_NR_ftruncate64:
2232
        goto unimplemented;
2233
    case TARGET_NR_stat64:
2234
        ret = get_errno(stat((const char *)arg1, &st));
2235
        goto do_stat64;
2236
    case TARGET_NR_lstat64:
2237
        ret = get_errno(lstat((const char *)arg1, &st));
2238
        goto do_stat64;
2239
    case TARGET_NR_fstat64:
2240
        {
2241
            ret = get_errno(fstat(arg1, &st));
2242
        do_stat64:
2243
            if (!is_error(ret)) {
2244
                struct target_stat64 *target_st = (void *)arg2;
2245
                target_st->st_dev = tswap16(st.st_dev);
2246
                target_st->st_ino = tswapl(st.st_ino);
2247
                target_st->st_mode = tswap16(st.st_mode);
2248
                target_st->st_nlink = tswap16(st.st_nlink);
2249
                target_st->st_uid = tswap16(st.st_uid);
2250
                target_st->st_gid = tswap16(st.st_gid);
2251
                target_st->st_rdev = tswap16(st.st_rdev);
2252
                /* XXX: better use of kernel struct */
2253
                target_st->st_size = tswapl(st.st_size);
2254
                target_st->st_blksize = tswapl(st.st_blksize);
2255
                target_st->st_blocks = tswapl(st.st_blocks);
2256
                target_st->target_st_atime = tswapl(st.st_atime);
2257
                target_st->target_st_mtime = tswapl(st.st_mtime);
2258
                target_st->target_st_ctime = tswapl(st.st_ctime);
2259
            }
2260
        }
2261
        break;
2262

    
2263
    case TARGET_NR_lchown32:
2264
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2265
        break;
2266
    case TARGET_NR_getuid32:
2267
        ret = get_errno(getuid());
2268
        break;
2269
    case TARGET_NR_getgid32:
2270
        ret = get_errno(getgid());
2271
        break;
2272
    case TARGET_NR_geteuid32:
2273
        ret = get_errno(geteuid());
2274
        break;
2275
    case TARGET_NR_getegid32:
2276
        ret = get_errno(getegid());
2277
        break;
2278
    case TARGET_NR_setreuid32:
2279
        ret = get_errno(setreuid(arg1, arg2));
2280
        break;
2281
    case TARGET_NR_setregid32:
2282
        ret = get_errno(setregid(arg1, arg2));
2283
        break;
2284
    case TARGET_NR_getgroups32:
2285
        goto unimplemented;
2286
    case TARGET_NR_setgroups32:
2287
        goto unimplemented;
2288
    case TARGET_NR_fchown32:
2289
        ret = get_errno(fchown(arg1, arg2, arg3));
2290
        break;
2291
    case TARGET_NR_setresuid32:
2292
        ret = get_errno(setresuid(arg1, arg2, arg3));
2293
        break;
2294
    case TARGET_NR_getresuid32:
2295
        {
2296
            int ruid, euid, suid;
2297
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2298
            if (!is_error(ret)) {
2299
                *(uint32_t *)arg1 = tswap32(ruid);
2300
                *(uint32_t *)arg2 = tswap32(euid);
2301
                *(uint32_t *)arg3 = tswap32(suid);
2302
            }
2303
        }
2304
        break;
2305
    case TARGET_NR_setresgid32:
2306
        ret = get_errno(setresgid(arg1, arg2, arg3));
2307
        break;
2308
    case TARGET_NR_getresgid32:
2309
        {
2310
            int rgid, egid, sgid;
2311
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2312
            if (!is_error(ret)) {
2313
                *(uint32_t *)arg1 = tswap32(rgid);
2314
                *(uint32_t *)arg2 = tswap32(egid);
2315
                *(uint32_t *)arg3 = tswap32(sgid);
2316
            }
2317
        }
2318
        break;
2319
    case TARGET_NR_chown32:
2320
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2321
        break;
2322
    case TARGET_NR_setuid32:
2323
        ret = get_errno(setuid(arg1));
2324
        break;
2325
    case TARGET_NR_setgid32:
2326
        ret = get_errno(setgid(arg1));
2327
        break;
2328
    case TARGET_NR_setfsuid32:
2329
        ret = get_errno(setfsuid(arg1));
2330
        break;
2331
    case TARGET_NR_setfsgid32:
2332
        ret = get_errno(setfsgid(arg1));
2333
        break;
2334
    case TARGET_NR_pivot_root:
2335
        goto unimplemented;
2336
    case TARGET_NR_mincore:
2337
        goto unimplemented;
2338
    case TARGET_NR_madvise:
2339
        goto unimplemented;
2340
#if TARGET_LONG_BITS == 32
2341
    case TARGET_NR_fcntl64:
2342
        switch(arg2) {
2343
        case F_GETLK64:
2344
        case F_SETLK64:
2345
        case F_SETLKW64:
2346
            goto unimplemented;
2347
        default:
2348
            ret = get_errno(fcntl(arg1, arg2, arg3));
2349
            break;
2350
        }
2351
        break;
2352
#endif
2353
    case TARGET_NR_security:
2354
        goto unimplemented;
2355
    case TARGET_NR_gettid:
2356
        ret = get_errno(gettid());
2357
        break;
2358
    case TARGET_NR_readahead:
2359
        goto unimplemented;
2360
    case TARGET_NR_setxattr:
2361
    case TARGET_NR_lsetxattr:
2362
    case TARGET_NR_fsetxattr:
2363
    case TARGET_NR_getxattr:
2364
    case TARGET_NR_lgetxattr:
2365
    case TARGET_NR_fgetxattr:
2366
    case TARGET_NR_listxattr:
2367
    case TARGET_NR_llistxattr:
2368
    case TARGET_NR_flistxattr:
2369
    case TARGET_NR_removexattr:
2370
    case TARGET_NR_lremovexattr:
2371
    case TARGET_NR_fremovexattr:
2372
        goto unimplemented_nowarn;
2373
    case TARGET_NR_set_thread_area:
2374
    case TARGET_NR_get_thread_area:
2375
        goto unimplemented_nowarn;
2376
    default:
2377
    unimplemented:
2378
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2379
    unimplemented_nowarn:
2380
        ret = -ENOSYS;
2381
        break;
2382
    }
2383
 fail:
2384
    return ret;
2385
}
2386