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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>
22
#include <stdarg.h>
23
#include <string.h>
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#include <elf.h>
25
#include <endian.h>
26
#include <errno.h>
27
#include <unistd.h>
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#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
#include <linux/kd.h>
62

    
63
#include "qemu.h"
64

    
65
//#define DEBUG
66

    
67
#ifndef PAGE_SIZE
68
#define PAGE_SIZE 4096
69
#define PAGE_MASK ~(PAGE_SIZE - 1)
70
#endif
71

    
72
//#include <linux/msdos_fs.h>
73
#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
74
#define        VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
75

    
76
void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
77
void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
78
long do_sigreturn(CPUX86State *env);
79
long do_rt_sigreturn(CPUX86State *env);
80

    
81
#define __NR_sys_uname __NR_uname
82
#define __NR_sys_getcwd1 __NR_getcwd
83
#define __NR_sys_statfs __NR_statfs
84
#define __NR_sys_fstatfs __NR_fstatfs
85
#define __NR_sys_getdents __NR_getdents
86
#define __NR_sys_getdents64 __NR_getdents64
87
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
88

    
89
#if defined(__alpha__) || defined (__ia64__)
90
#define __NR__llseek __NR_lseek
91
#endif
92

    
93
#ifdef __NR_gettid
94
_syscall0(int, gettid)
95
#else
96
static int gettid(void) {
97
    return -ENOSYS;
98
}
99
#endif
100
_syscall1(int,sys_uname,struct new_utsname *,buf)
101
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
102
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
103
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
104
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
105
          loff_t *, res, uint, wh);
106
_syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
107
_syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
108
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
109
#ifdef __NR_exit_group
110
_syscall1(int,exit_group,int,error_code)
111
#endif
112

    
113
extern int personality(int);
114
extern int flock(int, int);
115
extern int setfsuid(int);
116
extern int setfsgid(int);
117
extern int setresuid(uid_t, uid_t, uid_t);
118
extern int getresuid(uid_t *, uid_t *, uid_t *);
119
extern int setresgid(gid_t, gid_t, gid_t);
120
extern int getresgid(gid_t *, gid_t *, gid_t *);
121
extern int setgroups(int, gid_t *);
122

    
123
static inline long get_errno(long ret)
124
{
125
    if (ret == -1)
126
        return -errno;
127
    else
128
        return ret;
129
}
130

    
131
static inline int is_error(long ret)
132
{
133
    return (unsigned long)ret >= (unsigned long)(-4096);
134
}
135

    
136
static char *target_brk;
137
static char *target_original_brk;
138

    
139
void target_set_brk(char *new_brk)
140
{
141
    target_brk = new_brk;
142
    target_original_brk = new_brk;
143
}
144

    
145
static long do_brk(char *new_brk)
146
{
147
    char *brk_page;
148
    long mapped_addr;
149
    int        new_alloc_size;
150

    
151
    if (!new_brk)
152
        return (long)target_brk;
153
    if (new_brk < target_original_brk)
154
        return -ENOMEM;
155
    
156
    brk_page = (char *)(((unsigned long)target_brk + PAGE_SIZE - 1) & PAGE_MASK);
157

    
158
    /* If the new brk is less than this, set it and we're done... */
159
    if (new_brk < brk_page) {
160
        target_brk = new_brk;
161
            return (long)target_brk;
162
    }
163

    
164
    /* We need to allocate more memory after the brk... */
165
    new_alloc_size = ((new_brk - brk_page + 1)+(PAGE_SIZE-1)) & PAGE_MASK;
166
    mapped_addr = get_errno((long)mmap((caddr_t)brk_page, new_alloc_size, 
167
                                       PROT_READ|PROT_WRITE,
168
                                       MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
169
    
170
    if (is_error(mapped_addr)) {
171
        return mapped_addr;
172
    } else {
173
        target_brk = new_brk;
174
            return (long)target_brk;
175
    }
176
}
177

    
178
static inline fd_set *target_to_host_fds(fd_set *fds, 
179
                                         target_long *target_fds, int n)
180
{
181
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
182
    return (fd_set *)target_fds;
183
#else
184
    int i, b;
185
    if (target_fds) {
186
        FD_ZERO(fds);
187
        for(i = 0;i < n; i++) {
188
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
189
                 (i & (TARGET_LONG_BITS - 1))) & 1;
190
            if (b)
191
                FD_SET(i, fds);
192
        }
193
        return fds;
194
    } else {
195
        return NULL;
196
    }
197
#endif
198
}
199

    
200
static inline void host_to_target_fds(target_long *target_fds, 
201
                                      fd_set *fds, int n)
202
{
203
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
204
    /* nothing to do */
205
#else
206
    int i, nw, j, k;
207
    target_long v;
208

    
209
    if (target_fds) {
210
        nw = n / TARGET_LONG_BITS;
211
        k = 0;
212
        for(i = 0;i < nw; i++) {
213
            v = 0;
214
            for(j = 0; j < TARGET_LONG_BITS; j++) {
215
                v |= ((FD_ISSET(k, fds) != 0) << j);
216
                k++;
217
            }
218
            target_fds[i] = tswapl(v);
219
        }
220
    }
221
#endif
222
}
223

    
224
static inline void target_to_host_timeval(struct timeval *tv, 
225
                                          const struct target_timeval *target_tv)
226
{
227
    tv->tv_sec = tswapl(target_tv->tv_sec);
228
    tv->tv_usec = tswapl(target_tv->tv_usec);
229
}
230

    
231
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
232
                                          const struct timeval *tv)
233
{
234
    target_tv->tv_sec = tswapl(tv->tv_sec);
235
    target_tv->tv_usec = tswapl(tv->tv_usec);
236
}
237

    
238

    
239
static long do_select(long n, 
240
                      target_long *target_rfds, target_long *target_wfds, 
241
                      target_long *target_efds, struct target_timeval *target_tv)
242
{
243
    fd_set rfds, wfds, efds;
244
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
245
    struct timeval tv, *tv_ptr;
246
    long ret;
247

    
248
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
249
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
250
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
251
            
252
    if (target_tv) {
253
        target_to_host_timeval(&tv, target_tv);
254
        tv_ptr = &tv;
255
    } else {
256
        tv_ptr = NULL;
257
    }
258
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
259
    if (!is_error(ret)) {
260
        host_to_target_fds(target_rfds, rfds_ptr, n);
261
        host_to_target_fds(target_wfds, wfds_ptr, n);
262
        host_to_target_fds(target_efds, efds_ptr, n);
263

    
264
        if (target_tv) {
265
            host_to_target_timeval(target_tv, &tv);
266
        }
267
    }
268
    return ret;
269
}
270

    
271
static inline void target_to_host_sockaddr(struct sockaddr *addr,
272
                                           struct target_sockaddr *target_addr,
273
                                           socklen_t len)
274
{
275
    memcpy(addr, target_addr, len);
276
    addr->sa_family = tswap16(target_addr->sa_family);
277
}
278

    
279
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
280
                                           struct sockaddr *addr,
281
                                           socklen_t len)
282
{
283
    memcpy(target_addr, addr, len);
284
    target_addr->sa_family = tswap16(addr->sa_family);
285
}
286

    
287
static inline void target_to_host_cmsg(struct msghdr *msgh,
288
                                       struct target_msghdr *target_msgh)
289
{
290
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
291
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
292
    socklen_t space = 0;
293

    
294
    while (cmsg && target_cmsg) {
295
        void *data = CMSG_DATA(cmsg);
296
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
297

    
298
        int len = tswapl(target_cmsg->cmsg_len) 
299
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
300

    
301
        space += CMSG_SPACE(len);
302
        if (space > msgh->msg_controllen) {
303
            space -= CMSG_SPACE(len);
304
            gemu_log("Host cmsg overflow");
305
            break;
306
        }
307

    
308
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
309
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
310
        cmsg->cmsg_len = CMSG_LEN(len);
311

    
312
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
313
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
314
            memcpy(data, target_data, len);
315
        } else {
316
            int *fd = (int *)data;
317
            int *target_fd = (int *)target_data;
318
            int i, numfds = len / sizeof(int);
319

    
320
            for (i = 0; i < numfds; i++)
321
                fd[i] = tswap32(target_fd[i]);
322
        }
323

    
324
        cmsg = CMSG_NXTHDR(msgh, cmsg);
325
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
326
    }
327

    
328
    msgh->msg_controllen = space;
329
}
330

    
331
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
332
                                       struct msghdr *msgh)
333
{
334
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
335
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
336
    socklen_t space = 0;
337

    
338
    while (cmsg && target_cmsg) {
339
        void *data = CMSG_DATA(cmsg);
340
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
341

    
342
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
343

    
344
        space += TARGET_CMSG_SPACE(len);
345
        if (space > tswapl(target_msgh->msg_controllen)) {
346
            space -= TARGET_CMSG_SPACE(len);
347
            gemu_log("Target cmsg overflow");
348
            break;
349
        }
350

    
351
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
352
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
353
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
354

    
355
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
356
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
357
            memcpy(target_data, data, len);
358
        } else {
359
            int *fd = (int *)data;
360
            int *target_fd = (int *)target_data;
361
            int i, numfds = len / sizeof(int);
362

    
363
            for (i = 0; i < numfds; i++)
364
                target_fd[i] = tswap32(fd[i]);
365
        }
366

    
367
        cmsg = CMSG_NXTHDR(msgh, cmsg);
368
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
369
    }
370

    
371
    msgh->msg_controllen = tswapl(space);
372
}
373

    
374
static long do_setsockopt(int sockfd, int level, int optname, 
375
                          void *optval, socklen_t optlen)
376
{
377
    if (level == SOL_TCP) {
378
        /* TCP options all take an 'int' value.  */
379
        int val;
380

    
381
        if (optlen < sizeof(uint32_t))
382
            return -EINVAL;
383

    
384
        val = tswap32(*(uint32_t *)optval);
385
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
386
    }
387

    
388
    else if (level != SOL_SOCKET) {
389
        gemu_log("Unsupported setsockopt level: %d\n", level);
390
        return -ENOSYS;
391
    }
392

    
393
    switch (optname) {
394
    /* Options with 'int' argument.  */
395
    case SO_DEBUG:
396
    case SO_REUSEADDR:
397
    case SO_TYPE:
398
    case SO_ERROR:
399
    case SO_DONTROUTE:
400
    case SO_BROADCAST:
401
    case SO_SNDBUF:
402
    case SO_RCVBUF:
403
    case SO_KEEPALIVE:
404
    case SO_OOBINLINE:
405
    case SO_NO_CHECK:
406
    case SO_PRIORITY:
407
    case SO_BSDCOMPAT:
408
    case SO_PASSCRED:
409
    case SO_TIMESTAMP:
410
    case SO_RCVLOWAT:
411
    case SO_RCVTIMEO:
412
    case SO_SNDTIMEO:
413
    {
414
        int val;
415
        if (optlen < sizeof(uint32_t))
416
            return -EINVAL;
417
        val = tswap32(*(uint32_t *)optval);
418
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
419
    }
420

    
421
    default:
422
        gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
423
        return -ENOSYS;
424
    }
425
}
426

    
427
static long do_getsockopt(int sockfd, int level, int optname, 
428
                          void *optval, socklen_t *optlen)
429
{
430
    gemu_log("getsockopt not yet supported\n");
431
    return -ENOSYS;
432
}
433

    
434
static long do_socketcall(int num, int32_t *vptr)
435
{
436
    long ret;
437

    
438
    switch(num) {
439
    case SOCKOP_socket:
440
        {
441
            int domain = tswap32(vptr[0]);
442
            int type = tswap32(vptr[1]);
443
            int protocol = tswap32(vptr[2]);
444

    
445
            ret = get_errno(socket(domain, type, protocol));
446
        }
447
        break;
448
    case SOCKOP_bind:
449
        {
450
            int sockfd = tswap32(vptr[0]);
451
            void *target_addr = (void *)tswap32(vptr[1]);
452
            socklen_t addrlen = tswap32(vptr[2]);
453
            void *addr = alloca(addrlen);
454

    
455
            target_to_host_sockaddr(addr, target_addr, addrlen);
456
            ret = get_errno(bind(sockfd, addr, addrlen));
457
        }
458
        break;
459
    case SOCKOP_connect:
460
        {
461
            int sockfd = tswap32(vptr[0]);
462
            void *target_addr = (void *)tswap32(vptr[1]);
463
            socklen_t addrlen = tswap32(vptr[2]);
464
            void *addr = alloca(addrlen);
465

    
466
            target_to_host_sockaddr(addr, target_addr, addrlen);
467
            ret = get_errno(connect(sockfd, addr, addrlen));
468
        }
469
        break;
470
    case SOCKOP_listen:
471
        {
472
            int sockfd = tswap32(vptr[0]);
473
            int backlog = tswap32(vptr[1]);
474

    
475
            ret = get_errno(listen(sockfd, backlog));
476
        }
477
        break;
478
    case SOCKOP_accept:
479
        {
480
            int sockfd = tswap32(vptr[0]);
481
            void *target_addr = (void *)tswap32(vptr[1]);
482
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
483
            socklen_t addrlen = tswap32(*target_addrlen);
484
            void *addr = alloca(addrlen);
485

    
486
            ret = get_errno(accept(sockfd, addr, &addrlen));
487
            if (!is_error(ret)) {
488
                host_to_target_sockaddr(target_addr, addr, addrlen);
489
                *target_addrlen = tswap32(addrlen);
490
            }
491
        }
492
        break;
493
    case SOCKOP_getsockname:
494
        {
495
            int sockfd = tswap32(vptr[0]);
496
            void *target_addr = (void *)tswap32(vptr[1]);
497
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
498
            socklen_t addrlen = tswap32(*target_addrlen);
499
            void *addr = alloca(addrlen);
500

    
501
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
502
            if (!is_error(ret)) {
503
                host_to_target_sockaddr(target_addr, addr, addrlen);
504
                *target_addrlen = tswap32(addrlen);
505
            }
506
        }
507
        break;
508
    case SOCKOP_getpeername:
509
        {
510
            int sockfd = tswap32(vptr[0]);
511
            void *target_addr = (void *)tswap32(vptr[1]);
512
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
513
            socklen_t addrlen = tswap32(*target_addrlen);
514
            void *addr = alloca(addrlen);
515

    
516
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
517
            if (!is_error(ret)) {
518
                host_to_target_sockaddr(target_addr, addr, addrlen);
519
                *target_addrlen = tswap32(addrlen);
520
            }
521
        }
522
        break;
523
    case SOCKOP_socketpair:
524
        {
525
            int domain = tswap32(vptr[0]);
526
            int type = tswap32(vptr[1]);
527
            int protocol = tswap32(vptr[2]);
528
            int32_t *target_tab = (void *)tswap32(vptr[3]);
529
            int tab[2];
530

    
531
            ret = get_errno(socketpair(domain, type, protocol, tab));
532
            if (!is_error(ret)) {
533
                target_tab[0] = tswap32(tab[0]);
534
                target_tab[1] = tswap32(tab[1]);
535
            }
536
        }
537
        break;
538
    case SOCKOP_send:
539
        {
540
            int sockfd = tswap32(vptr[0]);
541
            void *msg = (void *)tswap32(vptr[1]);
542
            size_t len = tswap32(vptr[2]);
543
            int flags = tswap32(vptr[3]);
544

    
545
            ret = get_errno(send(sockfd, msg, len, flags));
546
        }
547
        break;
548
    case SOCKOP_recv:
549
        {
550
            int sockfd = tswap32(vptr[0]);
551
            void *msg = (void *)tswap32(vptr[1]);
552
            size_t len = tswap32(vptr[2]);
553
            int flags = tswap32(vptr[3]);
554

    
555
            ret = get_errno(recv(sockfd, msg, len, flags));
556
        }
557
        break;
558
    case SOCKOP_sendto:
559
        {
560
            int sockfd = tswap32(vptr[0]);
561
            void *msg = (void *)tswap32(vptr[1]);
562
            size_t len = tswap32(vptr[2]);
563
            int flags = tswap32(vptr[3]);
564
            void *target_addr = (void *)tswap32(vptr[4]);
565
            socklen_t addrlen = tswap32(vptr[5]);
566
            void *addr = alloca(addrlen);
567

    
568
            target_to_host_sockaddr(addr, target_addr, addrlen);
569
            ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
570
        }
571
        break;
572
    case SOCKOP_recvfrom:
573
        {
574
            int sockfd = tswap32(vptr[0]);
575
            void *msg = (void *)tswap32(vptr[1]);
576
            size_t len = tswap32(vptr[2]);
577
            int flags = tswap32(vptr[3]);
578
            void *target_addr = (void *)tswap32(vptr[4]);
579
            uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
580
            socklen_t addrlen = tswap32(*target_addrlen);
581
            void *addr = alloca(addrlen);
582

    
583
            ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
584
            if (!is_error(ret)) {
585
                host_to_target_sockaddr(target_addr, addr, addrlen);
586
                *target_addrlen = tswap32(addrlen);
587
            }
588
        }
589
        break;
590
    case SOCKOP_shutdown:
591
        {
592
            int sockfd = tswap32(vptr[0]);
593
            int how = tswap32(vptr[1]);
594

    
595
            ret = get_errno(shutdown(sockfd, how));
596
        }
597
        break;
598
    case SOCKOP_sendmsg:
599
    case SOCKOP_recvmsg:
600
        {
601
            int fd;
602
            struct target_msghdr *msgp;
603
            struct msghdr msg;
604
            int flags, count, i;
605
            struct iovec *vec;
606
            struct target_iovec *target_vec;
607

    
608
            msgp = (void *)tswap32(vptr[1]);
609
            msg.msg_name = (void *)tswapl(msgp->msg_name);
610
            msg.msg_namelen = tswapl(msgp->msg_namelen);
611
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
612
            msg.msg_control = alloca(msg.msg_controllen);
613
            msg.msg_flags = tswap32(msgp->msg_flags);
614

    
615
            count = tswapl(msgp->msg_iovlen);
616
            vec = alloca(count * sizeof(struct iovec));
617
            target_vec = (void *)tswapl(msgp->msg_iov);
618
            for(i = 0;i < count; i++) {
619
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
620
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
621
            }
622
            msg.msg_iovlen = count;
623
            msg.msg_iov = vec;
624

    
625
            fd = tswap32(vptr[0]);
626
            flags = tswap32(vptr[2]);
627
            if (num == SOCKOP_sendmsg) {
628
                target_to_host_cmsg(&msg, msgp);
629
                ret = get_errno(sendmsg(fd, &msg, flags));
630
            } else {
631
                ret = get_errno(recvmsg(fd, &msg, flags));
632
                if (!is_error(ret))
633
                  host_to_target_cmsg(msgp, &msg);
634
            }
635
        }
636
        break;
637
    case SOCKOP_setsockopt:
638
        {
639
            int sockfd = tswap32(vptr[0]);
640
            int level = tswap32(vptr[1]);
641
            int optname = tswap32(vptr[2]);
642
            void *optval = (void *)tswap32(vptr[3]);
643
            socklen_t optlen = tswap32(vptr[4]);
644

    
645
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
646
        }
647
        break;
648
    case SOCKOP_getsockopt:
649
        {
650
            int sockfd = tswap32(vptr[0]);
651
            int level = tswap32(vptr[1]);
652
            int optname = tswap32(vptr[2]);
653
            void *optval = (void *)tswap32(vptr[3]);
654
            uint32_t *target_len = (void *)tswap32(vptr[4]);
655
            socklen_t optlen = tswap32(*target_len);
656

    
657
            ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
658
            if (!is_error(ret))
659
                *target_len = tswap32(optlen);
660
        }
661
        break;
662
    default:
663
        gemu_log("Unsupported socketcall: %d\n", num);
664
        ret = -ENOSYS;
665
        break;
666
    }
667
    return ret;
668
}
669

    
670
/* kernel structure types definitions */
671
#define IFNAMSIZ        16
672

    
673
#define STRUCT(name, list...) STRUCT_ ## name,
674
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
675
enum {
676
#include "syscall_types.h"
677
};
678
#undef STRUCT
679
#undef STRUCT_SPECIAL
680

    
681
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
682
#define STRUCT_SPECIAL(name)
683
#include "syscall_types.h"
684
#undef STRUCT
685
#undef STRUCT_SPECIAL
686

    
687
typedef struct IOCTLEntry {
688
    int target_cmd;
689
    int host_cmd;
690
    const char *name;
691
    int access;
692
    const argtype arg_type[5];
693
} IOCTLEntry;
694

    
695
#define IOC_R 0x0001
696
#define IOC_W 0x0002
697
#define IOC_RW (IOC_R | IOC_W)
698

    
699
#define MAX_STRUCT_SIZE 4096
700

    
701
const IOCTLEntry ioctl_entries[] = {
702
#define IOCTL(cmd, access, types...) \
703
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
704
#include "ioctls.h"
705
    { 0, 0, },
706
};
707

    
708
static long do_ioctl(long fd, long cmd, long arg)
709
{
710
    const IOCTLEntry *ie;
711
    const argtype *arg_type;
712
    long ret;
713
    uint8_t buf_temp[MAX_STRUCT_SIZE];
714

    
715
    ie = ioctl_entries;
716
    for(;;) {
717
        if (ie->target_cmd == 0) {
718
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
719
            return -ENOSYS;
720
        }
721
        if (ie->target_cmd == cmd)
722
            break;
723
        ie++;
724
    }
725
    arg_type = ie->arg_type;
726
#if defined(DEBUG)
727
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
728
#endif
729
    switch(arg_type[0]) {
730
    case TYPE_NULL:
731
        /* no argument */
732
        ret = get_errno(ioctl(fd, ie->host_cmd));
733
        break;
734
    case TYPE_PTRVOID:
735
    case TYPE_INT:
736
        /* int argment */
737
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
738
        break;
739
    case TYPE_PTR:
740
        arg_type++;
741
        switch(ie->access) {
742
        case IOC_R:
743
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
744
            if (!is_error(ret)) {
745
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
746
            }
747
            break;
748
        case IOC_W:
749
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
750
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
751
            break;
752
        default:
753
        case IOC_RW:
754
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
755
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
756
            if (!is_error(ret)) {
757
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
758
            }
759
            break;
760
        }
761
        break;
762
    default:
763
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
764
        ret = -ENOSYS;
765
        break;
766
    }
767
    return ret;
768
}
769

    
770
bitmask_transtbl iflag_tbl[] = {
771
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
772
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
773
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
774
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
775
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
776
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
777
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
778
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
779
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
780
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
781
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
782
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
783
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
784
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
785
        { 0, 0, 0, 0 }
786
};
787

    
788
bitmask_transtbl oflag_tbl[] = {
789
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
790
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
791
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
792
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
793
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
794
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
795
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
796
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
797
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
798
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
799
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
800
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
801
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
802
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
803
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
804
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
805
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
806
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
807
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
808
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
809
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
810
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
811
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
812
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
813
        { 0, 0, 0, 0 }
814
};
815

    
816
bitmask_transtbl cflag_tbl[] = {
817
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
818
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
819
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
820
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
821
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
822
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
823
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
824
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
825
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
826
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
827
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
828
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
829
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
830
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
831
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
832
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
833
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
834
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
835
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
836
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
837
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
838
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
839
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
840
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
841
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
842
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
843
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
844
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
845
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
846
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
847
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
848
        { 0, 0, 0, 0 }
849
};
850

    
851
bitmask_transtbl lflag_tbl[] = {
852
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
853
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
854
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
855
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
856
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
857
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
858
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
859
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
860
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
861
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
862
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
863
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
864
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
865
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
866
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
867
        { 0, 0, 0, 0 }
868
};
869

    
870
static void target_to_host_termios (void *dst, const void *src)
871
{
872
    struct host_termios *host = dst;
873
    const struct target_termios *target = src;
874
    
875
    host->c_iflag = 
876
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
877
    host->c_oflag = 
878
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
879
    host->c_cflag = 
880
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
881
    host->c_lflag = 
882
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
883
    host->c_line = target->c_line;
884
    
885
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
886
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
887
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
888
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
889
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
890
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
891
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
892
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
893
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
894
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
895
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
896
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
897
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
898
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
899
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
900
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
901
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
902
}
903
  
904
static void host_to_target_termios (void *dst, const void *src)
905
{
906
    struct target_termios *target = dst;
907
    const struct host_termios *host = src;
908

    
909
    target->c_iflag = 
910
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
911
    target->c_oflag = 
912
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
913
    target->c_cflag = 
914
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
915
    target->c_lflag = 
916
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
917
    target->c_line = host->c_line;
918
  
919
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
920
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
921
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
922
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
923
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
924
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
925
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
926
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
927
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
928
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
929
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
930
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
931
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
932
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
933
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
934
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
935
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
936
}
937

    
938
StructEntry struct_termios_def = {
939
    .convert = { host_to_target_termios, target_to_host_termios },
940
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
941
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
942
};
943

    
944
#ifdef TARGET_I386
945

    
946
/* NOTE: there is really one LDT for all the threads */
947
uint8_t *ldt_table;
948

    
949
static int read_ldt(void *ptr, unsigned long bytecount)
950
{
951
    int size;
952

    
953
    if (!ldt_table)
954
        return 0;
955
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
956
    if (size > bytecount)
957
        size = bytecount;
958
    memcpy(ptr, ldt_table, size);
959
    return size;
960
}
961

    
962
/* XXX: add locking support */
963
static int write_ldt(CPUX86State *env, 
964
                     void *ptr, unsigned long bytecount, int oldmode)
965
{
966
    struct target_modify_ldt_ldt_s ldt_info;
967
    int seg_32bit, contents, read_exec_only, limit_in_pages;
968
    int seg_not_present, useable;
969
    uint32_t *lp, entry_1, entry_2;
970

    
971
    if (bytecount != sizeof(ldt_info))
972
        return -EINVAL;
973
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
974
    tswap32s(&ldt_info.entry_number);
975
    tswapls((long *)&ldt_info.base_addr);
976
    tswap32s(&ldt_info.limit);
977
    tswap32s(&ldt_info.flags);
978
    
979
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
980
        return -EINVAL;
981
    seg_32bit = ldt_info.flags & 1;
982
    contents = (ldt_info.flags >> 1) & 3;
983
    read_exec_only = (ldt_info.flags >> 3) & 1;
984
    limit_in_pages = (ldt_info.flags >> 4) & 1;
985
    seg_not_present = (ldt_info.flags >> 5) & 1;
986
    useable = (ldt_info.flags >> 6) & 1;
987

    
988
    if (contents == 3) {
989
        if (oldmode)
990
            return -EINVAL;
991
        if (seg_not_present == 0)
992
            return -EINVAL;
993
    }
994
    /* allocate the LDT */
995
    if (!ldt_table) {
996
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
997
        if (!ldt_table)
998
            return -ENOMEM;
999
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1000
        env->ldt.base = ldt_table;
1001
        env->ldt.limit = 0xffff;
1002
    }
1003

    
1004
    /* NOTE: same code as Linux kernel */
1005
    /* Allow LDTs to be cleared by the user. */
1006
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1007
        if (oldmode ||
1008
            (contents == 0                &&
1009
             read_exec_only == 1        &&
1010
             seg_32bit == 0                &&
1011
             limit_in_pages == 0        &&
1012
             seg_not_present == 1        &&
1013
             useable == 0 )) {
1014
            entry_1 = 0;
1015
            entry_2 = 0;
1016
            goto install;
1017
        }
1018
    }
1019
    
1020
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1021
        (ldt_info.limit & 0x0ffff);
1022
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1023
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1024
        (ldt_info.limit & 0xf0000) |
1025
        ((read_exec_only ^ 1) << 9) |
1026
        (contents << 10) |
1027
        ((seg_not_present ^ 1) << 15) |
1028
        (seg_32bit << 22) |
1029
        (limit_in_pages << 23) |
1030
        0x7000;
1031
    if (!oldmode)
1032
        entry_2 |= (useable << 20);
1033
    
1034
    /* Install the new entry ...  */
1035
install:
1036
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1037
    lp[0] = tswap32(entry_1);
1038
    lp[1] = tswap32(entry_2);
1039
    return 0;
1040
}
1041

    
1042
/* specific and weird i386 syscalls */
1043
int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1044
{
1045
    int ret = -ENOSYS;
1046
    
1047
    switch (func) {
1048
    case 0:
1049
        ret = read_ldt(ptr, bytecount);
1050
        break;
1051
    case 1:
1052
        ret = write_ldt(env, ptr, bytecount, 1);
1053
        break;
1054
    case 0x11:
1055
        ret = write_ldt(env, ptr, bytecount, 0);
1056
        break;
1057
    }
1058
    return ret;
1059
}
1060

    
1061
/* vm86 emulation */
1062

    
1063
#define SAFE_MASK  (0xDD5)
1064

    
1065
int do_vm86(CPUX86State *env, long subfunction, 
1066
            struct target_vm86plus_struct * target_v86)
1067
{
1068
    TaskState *ts = env->opaque;
1069
    int ret;
1070
    
1071
    switch (subfunction) {
1072
    case TARGET_VM86_REQUEST_IRQ:
1073
    case TARGET_VM86_FREE_IRQ:
1074
    case TARGET_VM86_GET_IRQ_BITS:
1075
    case TARGET_VM86_GET_AND_RESET_IRQ:
1076
        gemu_log("qemu: unsupported vm86 subfunction (%ld)\n", subfunction);
1077
        ret = -EINVAL;
1078
        goto out;
1079
    case TARGET_VM86_PLUS_INSTALL_CHECK:
1080
        /* NOTE: on old vm86 stuff this will return the error
1081
           from verify_area(), because the subfunction is
1082
           interpreted as (invalid) address to vm86_struct.
1083
           So the installation check works.
1084
            */
1085
        ret = 0;
1086
        goto out;
1087
    }
1088

    
1089
    ts->target_v86 = target_v86;
1090
    /* save current CPU regs */
1091
    ts->vm86_saved_regs.eax = 0; /* default vm86 syscall return code */
1092
    ts->vm86_saved_regs.ebx = env->regs[R_EBX];
1093
    ts->vm86_saved_regs.ecx = env->regs[R_ECX];
1094
    ts->vm86_saved_regs.edx = env->regs[R_EDX];
1095
    ts->vm86_saved_regs.esi = env->regs[R_ESI];
1096
    ts->vm86_saved_regs.edi = env->regs[R_EDI];
1097
    ts->vm86_saved_regs.ebp = env->regs[R_EBP];
1098
    ts->vm86_saved_regs.esp = env->regs[R_ESP];
1099
    ts->vm86_saved_regs.eflags = env->eflags;
1100
    ts->vm86_saved_regs.eip  = env->eip;
1101
    ts->vm86_saved_regs.cs = env->segs[R_CS];
1102
    ts->vm86_saved_regs.ss = env->segs[R_SS];
1103
    ts->vm86_saved_regs.ds = env->segs[R_DS];
1104
    ts->vm86_saved_regs.es = env->segs[R_ES];
1105
    ts->vm86_saved_regs.fs = env->segs[R_FS];
1106
    ts->vm86_saved_regs.gs = env->segs[R_GS];
1107

    
1108
    /* build vm86 CPU state */
1109
    env->eflags = (env->eflags & ~SAFE_MASK) | 
1110
        (tswap32(target_v86->regs.eflags) & SAFE_MASK) | VM_MASK;
1111

    
1112
    env->regs[R_EBX] = tswap32(target_v86->regs.ebx);
1113
    env->regs[R_ECX] = tswap32(target_v86->regs.ecx);
1114
    env->regs[R_EDX] = tswap32(target_v86->regs.edx);
1115
    env->regs[R_ESI] = tswap32(target_v86->regs.esi);
1116
    env->regs[R_EDI] = tswap32(target_v86->regs.edi);
1117
    env->regs[R_EBP] = tswap32(target_v86->regs.ebp);
1118
    env->regs[R_ESP] = tswap32(target_v86->regs.esp);
1119
    env->eip = tswap32(target_v86->regs.eip);
1120
    cpu_x86_load_seg(env, R_CS, tswap16(target_v86->regs.cs));
1121
    cpu_x86_load_seg(env, R_SS, tswap16(target_v86->regs.ss));
1122
    cpu_x86_load_seg(env, R_DS, tswap16(target_v86->regs.ds));
1123
    cpu_x86_load_seg(env, R_ES, tswap16(target_v86->regs.es));
1124
    cpu_x86_load_seg(env, R_FS, tswap16(target_v86->regs.fs));
1125
    cpu_x86_load_seg(env, R_GS, tswap16(target_v86->regs.gs));
1126
    ret = tswap32(target_v86->regs.eax); /* eax will be restored at
1127
                                            the end of the syscall */
1128
    /* now the virtual CPU is ready for vm86 execution ! */
1129
 out:
1130
    return ret;
1131
}
1132

    
1133
/* this stack is the equivalent of the kernel stack associated with a
1134
   thread/process */
1135
#define NEW_STACK_SIZE 8192
1136

    
1137
static int clone_func(void *arg)
1138
{
1139
    CPUX86State *env = arg;
1140
    cpu_loop(env);
1141
    /* never exits */
1142
    return 0;
1143
}
1144

    
1145
int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
1146
{
1147
    int ret;
1148
    TaskState *ts;
1149
    uint8_t *new_stack;
1150
    CPUX86State *new_env;
1151
    
1152
    if (flags & CLONE_VM) {
1153
        if (!newsp)
1154
            newsp = env->regs[R_ESP];
1155
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1156
        memset(ts, 0, sizeof(TaskState));
1157
        new_stack = ts->stack;
1158
        ts->used = 1;
1159
        /* add in task state list */
1160
        ts->next = first_task_state;
1161
        first_task_state = ts;
1162
        /* we create a new CPU instance. */
1163
        new_env = cpu_x86_init();
1164
        memcpy(new_env, env, sizeof(CPUX86State));
1165
        new_env->regs[R_ESP] = newsp;
1166
        new_env->regs[R_EAX] = 0;
1167
        new_env->opaque = ts;
1168
#ifdef __ia64__
1169
        ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1170
#else
1171
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1172
#endif
1173
    } else {
1174
        /* if no CLONE_VM, we consider it is a fork */
1175
        if ((flags & ~CSIGNAL) != 0)
1176
            return -EINVAL;
1177
        ret = fork();
1178
    }
1179
    return ret;
1180
}
1181

    
1182
#endif
1183

    
1184
#define high2lowuid(x) (x)
1185
#define high2lowgid(x) (x)
1186
#define low2highuid(x) (x)
1187
#define low2highgid(x) (x)
1188

    
1189
void syscall_init(void)
1190
{
1191
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1192
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1193
#include "syscall_types.h"
1194
#undef STRUCT
1195
#undef STRUCT_SPECIAL
1196
}
1197
                                 
1198
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1199
                long arg4, long arg5, long arg6)
1200
{
1201
    long ret;
1202
    struct stat st;
1203
    struct kernel_statfs *stfs;
1204
    
1205
#ifdef DEBUG
1206
    gemu_log("syscall %d\n", num);
1207
#endif
1208
    switch(num) {
1209
    case TARGET_NR_exit:
1210
#ifdef HAVE_GPROF
1211
        _mcleanup();
1212
#endif
1213
        /* XXX: should free thread stack and CPU env */
1214
        _exit(arg1);
1215
        ret = 0; /* avoid warning */
1216
        break;
1217
    case TARGET_NR_read:
1218
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1219
        break;
1220
    case TARGET_NR_write:
1221
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1222
        break;
1223
    case TARGET_NR_open:
1224
        ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1225
        break;
1226
    case TARGET_NR_close:
1227
        ret = get_errno(close(arg1));
1228
        break;
1229
    case TARGET_NR_brk:
1230
        ret = do_brk((char *)arg1);
1231
        break;
1232
    case TARGET_NR_fork:
1233
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1234
        break;
1235
    case TARGET_NR_waitpid:
1236
        {
1237
            int *status = (int *)arg2;
1238
            ret = get_errno(waitpid(arg1, status, arg3));
1239
            if (!is_error(ret) && status)
1240
                tswapls((long *)&status);
1241
        }
1242
        break;
1243
    case TARGET_NR_creat:
1244
        ret = get_errno(creat((const char *)arg1, arg2));
1245
        break;
1246
    case TARGET_NR_link:
1247
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1248
        break;
1249
    case TARGET_NR_unlink:
1250
        ret = get_errno(unlink((const char *)arg1));
1251
        break;
1252
    case TARGET_NR_execve:
1253
        {
1254
            char **argp, **envp;
1255
            int argc, envc;
1256
            uint32_t *p;
1257
            char **q;
1258

    
1259
            argc = 0;
1260
            for (p = (void *)arg2; *p; p++)
1261
                argc++;
1262
            envc = 0;
1263
            for (p = (void *)arg3; *p; p++)
1264
                envc++;
1265

    
1266
            argp = alloca((argc + 1) * sizeof(void *));
1267
            envp = alloca((envc + 1) * sizeof(void *));
1268

    
1269
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1270
                *q = (void *)tswap32(*p);
1271
            *q = NULL;
1272

    
1273
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1274
                *q = (void *)tswap32(*p);
1275
            *q = NULL;
1276

    
1277
            ret = get_errno(execve((const char *)arg1, argp, envp));
1278
        }
1279
        break;
1280
    case TARGET_NR_chdir:
1281
        ret = get_errno(chdir((const char *)arg1));
1282
        break;
1283
    case TARGET_NR_time:
1284
        {
1285
            int *time_ptr = (int *)arg1;
1286
            ret = get_errno(time((time_t *)time_ptr));
1287
            if (!is_error(ret) && time_ptr)
1288
                tswap32s(time_ptr);
1289
        }
1290
        break;
1291
    case TARGET_NR_mknod:
1292
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1293
        break;
1294
    case TARGET_NR_chmod:
1295
        ret = get_errno(chmod((const char *)arg1, arg2));
1296
        break;
1297
    case TARGET_NR_lchown:
1298
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1299
        break;
1300
    case TARGET_NR_break:
1301
        goto unimplemented;
1302
    case TARGET_NR_oldstat:
1303
        goto unimplemented;
1304
    case TARGET_NR_lseek:
1305
        ret = get_errno(lseek(arg1, arg2, arg3));
1306
        break;
1307
    case TARGET_NR_getpid:
1308
        ret = get_errno(getpid());
1309
        break;
1310
    case TARGET_NR_mount:
1311
        /* need to look at the data field */
1312
        goto unimplemented;
1313
    case TARGET_NR_umount:
1314
        ret = get_errno(umount((const char *)arg1));
1315
        break;
1316
    case TARGET_NR_setuid:
1317
        ret = get_errno(setuid(low2highuid(arg1)));
1318
        break;
1319
    case TARGET_NR_getuid:
1320
        ret = get_errno(getuid());
1321
        break;
1322
    case TARGET_NR_stime:
1323
        {
1324
            int *time_ptr = (int *)arg1;
1325
            if (time_ptr)
1326
                tswap32s(time_ptr);
1327
            ret = get_errno(stime((time_t *)time_ptr));
1328
        }
1329
        break;
1330
    case TARGET_NR_ptrace:
1331
        goto unimplemented;
1332
    case TARGET_NR_alarm:
1333
        ret = alarm(arg1);
1334
        break;
1335
    case TARGET_NR_oldfstat:
1336
        goto unimplemented;
1337
    case TARGET_NR_pause:
1338
        ret = get_errno(pause());
1339
        break;
1340
    case TARGET_NR_utime:
1341
        goto unimplemented;
1342
    case TARGET_NR_stty:
1343
        goto unimplemented;
1344
    case TARGET_NR_gtty:
1345
        goto unimplemented;
1346
    case TARGET_NR_access:
1347
        ret = get_errno(access((const char *)arg1, arg2));
1348
        break;
1349
    case TARGET_NR_nice:
1350
        ret = get_errno(nice(arg1));
1351
        break;
1352
    case TARGET_NR_ftime:
1353
        goto unimplemented;
1354
    case TARGET_NR_sync:
1355
        sync();
1356
        ret = 0;
1357
        break;
1358
    case TARGET_NR_kill:
1359
        ret = get_errno(kill(arg1, arg2));
1360
        break;
1361
    case TARGET_NR_rename:
1362
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1363
        break;
1364
    case TARGET_NR_mkdir:
1365
        ret = get_errno(mkdir((const char *)arg1, arg2));
1366
        break;
1367
    case TARGET_NR_rmdir:
1368
        ret = get_errno(rmdir((const char *)arg1));
1369
        break;
1370
    case TARGET_NR_dup:
1371
        ret = get_errno(dup(arg1));
1372
        break;
1373
    case TARGET_NR_pipe:
1374
        {
1375
            int *pipe_ptr = (int *)arg1;
1376
            ret = get_errno(pipe(pipe_ptr));
1377
            if (!is_error(ret)) {
1378
                tswap32s(&pipe_ptr[0]);
1379
                tswap32s(&pipe_ptr[1]);
1380
            }
1381
        }
1382
        break;
1383
    case TARGET_NR_times:
1384
        {
1385
            struct target_tms *tmsp = (void *)arg1;
1386
            struct tms tms;
1387
            ret = get_errno(times(&tms));
1388
            if (tmsp) {
1389
                tmsp->tms_utime = tswapl(tms.tms_utime);
1390
                tmsp->tms_stime = tswapl(tms.tms_stime);
1391
                tmsp->tms_cutime = tswapl(tms.tms_cutime);
1392
                tmsp->tms_cstime = tswapl(tms.tms_cstime);
1393
            }
1394
        }
1395
        break;
1396
    case TARGET_NR_prof:
1397
        goto unimplemented;
1398
    case TARGET_NR_setgid:
1399
        ret = get_errno(setgid(low2highgid(arg1)));
1400
        break;
1401
    case TARGET_NR_getgid:
1402
        ret = get_errno(getgid());
1403
        break;
1404
    case TARGET_NR_signal:
1405
        goto unimplemented;
1406
    case TARGET_NR_geteuid:
1407
        ret = get_errno(geteuid());
1408
        break;
1409
    case TARGET_NR_getegid:
1410
        ret = get_errno(getegid());
1411
        break;
1412
    case TARGET_NR_acct:
1413
        goto unimplemented;
1414
    case TARGET_NR_umount2:
1415
        ret = get_errno(umount2((const char *)arg1, arg2));
1416
        break;
1417
    case TARGET_NR_lock:
1418
        goto unimplemented;
1419
    case TARGET_NR_ioctl:
1420
        ret = do_ioctl(arg1, arg2, arg3);
1421
        break;
1422
    case TARGET_NR_fcntl:
1423
    {
1424
        struct flock fl;
1425
        struct target_flock *target_fl = (void *)arg3;
1426

    
1427
        switch(arg2) {
1428
        case TARGET_F_GETLK:
1429
            ret = get_errno(fcntl(arg1, arg2, &fl));
1430
            if (ret == 0) {
1431
                target_fl->l_type = tswap16(fl.l_type);
1432
                target_fl->l_whence = tswap16(fl.l_whence);
1433
                target_fl->l_start = tswapl(fl.l_start);
1434
                target_fl->l_len = tswapl(fl.l_len);
1435
                target_fl->l_pid = tswapl(fl.l_pid);
1436
            }
1437
            break;
1438

    
1439
        case TARGET_F_SETLK:
1440
        case TARGET_F_SETLKW:
1441
            fl.l_type = tswap16(target_fl->l_type);
1442
            fl.l_whence = tswap16(target_fl->l_whence);
1443
            fl.l_start = tswapl(target_fl->l_start);
1444
            fl.l_len = tswapl(target_fl->l_len);
1445
            fl.l_pid = tswapl(target_fl->l_pid);
1446
            ret = get_errno(fcntl(arg1, arg2, &fl));
1447
            break;
1448

    
1449
        case TARGET_F_GETLK64:
1450
        case TARGET_F_SETLK64:
1451
        case TARGET_F_SETLKW64:
1452
            goto unimplemented;
1453
        default:
1454
            ret = get_errno(fcntl(arg1, arg2, arg3));
1455
            break;
1456
        }
1457
        break;
1458
    }
1459
    case TARGET_NR_mpx:
1460
        goto unimplemented;
1461
    case TARGET_NR_setpgid:
1462
        ret = get_errno(setpgid(arg1, arg2));
1463
        break;
1464
    case TARGET_NR_ulimit:
1465
        goto unimplemented;
1466
    case TARGET_NR_oldolduname:
1467
        goto unimplemented;
1468
    case TARGET_NR_umask:
1469
        ret = get_errno(umask(arg1));
1470
        break;
1471
    case TARGET_NR_chroot:
1472
        ret = get_errno(chroot((const char *)arg1));
1473
        break;
1474
    case TARGET_NR_ustat:
1475
        goto unimplemented;
1476
    case TARGET_NR_dup2:
1477
        ret = get_errno(dup2(arg1, arg2));
1478
        break;
1479
    case TARGET_NR_getppid:
1480
        ret = get_errno(getppid());
1481
        break;
1482
    case TARGET_NR_getpgrp:
1483
        ret = get_errno(getpgrp());
1484
        break;
1485
    case TARGET_NR_setsid:
1486
        ret = get_errno(setsid());
1487
        break;
1488
    case TARGET_NR_sigaction:
1489
        {
1490
            struct target_old_sigaction *old_act = (void *)arg2;
1491
            struct target_old_sigaction *old_oact = (void *)arg3;
1492
            struct target_sigaction act, oact, *pact;
1493
            if (old_act) {
1494
                act._sa_handler = old_act->_sa_handler;
1495
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1496
                act.sa_flags = old_act->sa_flags;
1497
                act.sa_restorer = old_act->sa_restorer;
1498
                pact = &act;
1499
            } else {
1500
                pact = NULL;
1501
            }
1502
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1503
            if (!is_error(ret) && old_oact) {
1504
                old_oact->_sa_handler = oact._sa_handler;
1505
                old_oact->sa_mask = oact.sa_mask.sig[0];
1506
                old_oact->sa_flags = oact.sa_flags;
1507
                old_oact->sa_restorer = oact.sa_restorer;
1508
            }
1509
        }
1510
        break;
1511
    case TARGET_NR_rt_sigaction:
1512
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1513
        break;
1514
    case TARGET_NR_sgetmask:
1515
        {
1516
            sigset_t cur_set;
1517
            target_ulong target_set;
1518
            sigprocmask(0, NULL, &cur_set);
1519
            host_to_target_old_sigset(&target_set, &cur_set);
1520
            ret = target_set;
1521
        }
1522
        break;
1523
    case TARGET_NR_ssetmask:
1524
        {
1525
            sigset_t set, oset, cur_set;
1526
            target_ulong target_set = arg1;
1527
            sigprocmask(0, NULL, &cur_set);
1528
            target_to_host_old_sigset(&set, &target_set);
1529
            sigorset(&set, &set, &cur_set);
1530
            sigprocmask(SIG_SETMASK, &set, &oset);
1531
            host_to_target_old_sigset(&target_set, &oset);
1532
            ret = target_set;
1533
        }
1534
        break;
1535
    case TARGET_NR_sigprocmask:
1536
        {
1537
            int how = arg1;
1538
            sigset_t set, oldset, *set_ptr;
1539
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1540
            
1541
            if (pset) {
1542
                switch(how) {
1543
                case TARGET_SIG_BLOCK:
1544
                    how = SIG_BLOCK;
1545
                    break;
1546
                case TARGET_SIG_UNBLOCK:
1547
                    how = SIG_UNBLOCK;
1548
                    break;
1549
                case TARGET_SIG_SETMASK:
1550
                    how = SIG_SETMASK;
1551
                    break;
1552
                default:
1553
                    ret = -EINVAL;
1554
                    goto fail;
1555
                }
1556
                target_to_host_old_sigset(&set, pset);
1557
                set_ptr = &set;
1558
            } else {
1559
                how = 0;
1560
                set_ptr = NULL;
1561
            }
1562
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1563
            if (!is_error(ret) && poldset) {
1564
                host_to_target_old_sigset(poldset, &oldset);
1565
            }
1566
        }
1567
        break;
1568
    case TARGET_NR_rt_sigprocmask:
1569
        {
1570
            int how = arg1;
1571
            sigset_t set, oldset, *set_ptr;
1572
            target_sigset_t *pset = (void *)arg2;
1573
            target_sigset_t *poldset = (void *)arg3;
1574
            
1575
            if (pset) {
1576
                switch(how) {
1577
                case TARGET_SIG_BLOCK:
1578
                    how = SIG_BLOCK;
1579
                    break;
1580
                case TARGET_SIG_UNBLOCK:
1581
                    how = SIG_UNBLOCK;
1582
                    break;
1583
                case TARGET_SIG_SETMASK:
1584
                    how = SIG_SETMASK;
1585
                    break;
1586
                default:
1587
                    ret = -EINVAL;
1588
                    goto fail;
1589
                }
1590
                target_to_host_sigset(&set, pset);
1591
                set_ptr = &set;
1592
            } else {
1593
                how = 0;
1594
                set_ptr = NULL;
1595
            }
1596
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1597
            if (!is_error(ret) && poldset) {
1598
                host_to_target_sigset(poldset, &oldset);
1599
            }
1600
        }
1601
        break;
1602
    case TARGET_NR_sigpending:
1603
        {
1604
            sigset_t set;
1605
            ret = get_errno(sigpending(&set));
1606
            if (!is_error(ret)) {
1607
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1608
            }
1609
        }
1610
        break;
1611
    case TARGET_NR_rt_sigpending:
1612
        {
1613
            sigset_t set;
1614
            ret = get_errno(sigpending(&set));
1615
            if (!is_error(ret)) {
1616
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1617
            }
1618
        }
1619
        break;
1620
    case TARGET_NR_sigsuspend:
1621
        {
1622
            sigset_t set;
1623
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1624
            ret = get_errno(sigsuspend(&set));
1625
        }
1626
        break;
1627
    case TARGET_NR_rt_sigsuspend:
1628
        {
1629
            sigset_t set;
1630
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1631
            ret = get_errno(sigsuspend(&set));
1632
        }
1633
        break;
1634
    case TARGET_NR_rt_sigtimedwait:
1635
        {
1636
            target_sigset_t *target_set = (void *)arg1;
1637
            target_siginfo_t *target_uinfo = (void *)arg2;
1638
            struct target_timespec *target_uts = (void *)arg3;
1639
            sigset_t set;
1640
            struct timespec uts, *puts;
1641
            siginfo_t uinfo;
1642
            
1643
            target_to_host_sigset(&set, target_set);
1644
            if (target_uts) {
1645
                puts = &uts;
1646
                puts->tv_sec = tswapl(target_uts->tv_sec);
1647
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1648
            } else {
1649
                puts = NULL;
1650
            }
1651
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1652
            if (!is_error(ret) && target_uinfo) {
1653
                host_to_target_siginfo(target_uinfo, &uinfo);
1654
            }
1655
        }
1656
        break;
1657
    case TARGET_NR_rt_sigqueueinfo:
1658
        {
1659
            siginfo_t uinfo;
1660
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1661
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1662
        }
1663
        break;
1664
    case TARGET_NR_sigreturn:
1665
        /* NOTE: ret is eax, so not transcoding must be done */
1666
        ret = do_sigreturn(cpu_env);
1667
        break;
1668
    case TARGET_NR_rt_sigreturn:
1669
        /* NOTE: ret is eax, so not transcoding must be done */
1670
        ret = do_rt_sigreturn(cpu_env);
1671
        break;
1672
    case TARGET_NR_setreuid:
1673
        ret = get_errno(setreuid(arg1, arg2));
1674
        break;
1675
    case TARGET_NR_setregid:
1676
        ret = get_errno(setregid(arg1, arg2));
1677
        break;
1678
    case TARGET_NR_sethostname:
1679
        ret = get_errno(sethostname((const char *)arg1, arg2));
1680
        break;
1681
    case TARGET_NR_setrlimit:
1682
        {
1683
            /* XXX: convert resource ? */
1684
            int resource = arg1;
1685
            struct target_rlimit *target_rlim = (void *)arg2;
1686
            struct rlimit rlim;
1687
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1688
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1689
            ret = get_errno(setrlimit(resource, &rlim));
1690
        }
1691
        break;
1692
    case TARGET_NR_getrlimit:
1693
        {
1694
            /* XXX: convert resource ? */
1695
            int resource = arg1;
1696
            struct target_rlimit *target_rlim = (void *)arg2;
1697
            struct rlimit rlim;
1698
            
1699
            ret = get_errno(getrlimit(resource, &rlim));
1700
            if (!is_error(ret)) {
1701
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1702
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1703
            }
1704
        }
1705
        break;
1706
    case TARGET_NR_getrusage:
1707
        goto unimplemented;
1708
    case TARGET_NR_gettimeofday:
1709
        {
1710
            struct target_timeval *target_tv = (void *)arg1;
1711
            struct timeval tv;
1712
            ret = get_errno(gettimeofday(&tv, NULL));
1713
            if (!is_error(ret)) {
1714
                host_to_target_timeval(target_tv, &tv);
1715
            }
1716
        }
1717
        break;
1718
    case TARGET_NR_settimeofday:
1719
        {
1720
            struct target_timeval *target_tv = (void *)arg1;
1721
            struct timeval tv;
1722
            target_to_host_timeval(&tv, target_tv);
1723
            ret = get_errno(settimeofday(&tv, NULL));
1724
        }
1725
        break;
1726
    case TARGET_NR_getgroups:
1727
        {
1728
            int gidsetsize = arg1;
1729
            uint16_t *target_grouplist = (void *)arg2;
1730
            gid_t *grouplist;
1731
            int i;
1732

    
1733
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1734
            ret = get_errno(getgroups(gidsetsize, grouplist));
1735
            if (!is_error(ret)) {
1736
                for(i = 0;i < gidsetsize; i++)
1737
                    target_grouplist[i] = tswap16(grouplist[i]);
1738
            }
1739
        }
1740
        break;
1741
    case TARGET_NR_setgroups:
1742
        {
1743
            int gidsetsize = arg1;
1744
            uint16_t *target_grouplist = (void *)arg2;
1745
            gid_t *grouplist;
1746
            int i;
1747

    
1748
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1749
            for(i = 0;i < gidsetsize; i++)
1750
                grouplist[i] = tswap16(target_grouplist[i]);
1751
            ret = get_errno(setgroups(gidsetsize, grouplist));
1752
        }
1753
        break;
1754
    case TARGET_NR_select:
1755
        goto unimplemented;
1756
    case TARGET_NR_symlink:
1757
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1758
        break;
1759
    case TARGET_NR_oldlstat:
1760
        goto unimplemented;
1761
    case TARGET_NR_readlink:
1762
        ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1763
        break;
1764
    case TARGET_NR_uselib:
1765
        goto unimplemented;
1766
    case TARGET_NR_swapon:
1767
        ret = get_errno(swapon((const char *)arg1, arg2));
1768
        break;
1769
    case TARGET_NR_reboot:
1770
        goto unimplemented;
1771
    case TARGET_NR_readdir:
1772
        goto unimplemented;
1773
#ifdef TARGET_I386
1774
    case TARGET_NR_mmap:
1775
        {
1776
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1777
            vptr = (uint32_t *)arg1;
1778
            v1 = tswap32(vptr[0]);
1779
            v2 = tswap32(vptr[1]);
1780
            v3 = tswap32(vptr[2]);
1781
            v4 = tswap32(vptr[3]);
1782
            v5 = tswap32(vptr[4]);
1783
            v6 = tswap32(vptr[5]);
1784
            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
1785
        }
1786
        break;
1787
#endif
1788
#ifdef TARGET_I386
1789
    case TARGET_NR_mmap2:
1790
#else
1791
    case TARGET_NR_mmap:
1792
#endif
1793
        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
1794
        break;
1795
    case TARGET_NR_munmap:
1796
        ret = get_errno(munmap((void *)arg1, arg2));
1797
        break;
1798
    case TARGET_NR_mprotect:
1799
        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
1800
        break;
1801
    case TARGET_NR_mremap:
1802
        ret = get_errno((long)mremap((void *)arg1, arg2, arg3, arg4));
1803
        break;
1804
    case TARGET_NR_msync:
1805
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1806
        break;
1807
    case TARGET_NR_mlock:
1808
        ret = get_errno(mlock((void *)arg1, arg2));
1809
        break;
1810
    case TARGET_NR_munlock:
1811
        ret = get_errno(munlock((void *)arg1, arg2));
1812
        break;
1813
    case TARGET_NR_mlockall:
1814
        ret = get_errno(mlockall(arg1));
1815
        break;
1816
    case TARGET_NR_munlockall:
1817
        ret = get_errno(munlockall());
1818
        break;
1819
    case TARGET_NR_truncate:
1820
        ret = get_errno(truncate((const char *)arg1, arg2));
1821
        break;
1822
    case TARGET_NR_ftruncate:
1823
        ret = get_errno(ftruncate(arg1, arg2));
1824
        break;
1825
    case TARGET_NR_fchmod:
1826
        ret = get_errno(fchmod(arg1, arg2));
1827
        break;
1828
    case TARGET_NR_fchown:
1829
        ret = get_errno(fchown(arg1, arg2, arg3));
1830
        break;
1831
    case TARGET_NR_getpriority:
1832
        ret = get_errno(getpriority(arg1, arg2));
1833
        break;
1834
    case TARGET_NR_setpriority:
1835
        ret = get_errno(setpriority(arg1, arg2, arg3));
1836
        break;
1837
    case TARGET_NR_profil:
1838
        goto unimplemented;
1839
    case TARGET_NR_statfs:
1840
        stfs = (void *)arg2;
1841
        ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
1842
    convert_statfs:
1843
        if (!is_error(ret)) {
1844
            tswap32s(&stfs->f_type);
1845
            tswap32s(&stfs->f_bsize);
1846
            tswap32s(&stfs->f_blocks);
1847
            tswap32s(&stfs->f_bfree);
1848
            tswap32s(&stfs->f_bavail);
1849
            tswap32s(&stfs->f_files);
1850
            tswap32s(&stfs->f_ffree);
1851
            tswap32s(&stfs->f_fsid.val[0]);
1852
            tswap32s(&stfs->f_fsid.val[1]);
1853
            tswap32s(&stfs->f_namelen);
1854
        }
1855
        break;
1856
    case TARGET_NR_fstatfs:
1857
        stfs = (void *)arg2;
1858
        ret = get_errno(sys_fstatfs(arg1, stfs));
1859
        goto convert_statfs;
1860
    case TARGET_NR_ioperm:
1861
        goto unimplemented;
1862
    case TARGET_NR_socketcall:
1863
        ret = do_socketcall(arg1, (int32_t *)arg2);
1864
        break;
1865
    case TARGET_NR_syslog:
1866
        goto unimplemented;
1867
    case TARGET_NR_setitimer:
1868
        {
1869
            struct target_itimerval *target_value = (void *)arg2;
1870
            struct target_itimerval *target_ovalue = (void *)arg3;
1871
            struct itimerval value, ovalue, *pvalue;
1872

    
1873
            if (target_value) {
1874
                pvalue = &value;
1875
                target_to_host_timeval(&pvalue->it_interval, 
1876
                                       &target_value->it_interval);
1877
                target_to_host_timeval(&pvalue->it_value, 
1878
                                       &target_value->it_value);
1879
            } else {
1880
                pvalue = NULL;
1881
            }
1882
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1883
            if (!is_error(ret) && target_ovalue) {
1884
                host_to_target_timeval(&target_ovalue->it_interval, 
1885
                                       &ovalue.it_interval);
1886
                host_to_target_timeval(&target_ovalue->it_value, 
1887
                                       &ovalue.it_value);
1888
            }
1889
        }
1890
        break;
1891
    case TARGET_NR_getitimer:
1892
        {
1893
            struct target_itimerval *target_value = (void *)arg2;
1894
            struct itimerval value;
1895
            
1896
            ret = get_errno(getitimer(arg1, &value));
1897
            if (!is_error(ret) && target_value) {
1898
                host_to_target_timeval(&target_value->it_interval, 
1899
                                       &value.it_interval);
1900
                host_to_target_timeval(&target_value->it_value, 
1901
                                       &value.it_value);
1902
            }
1903
        }
1904
        break;
1905
    case TARGET_NR_stat:
1906
        ret = get_errno(stat(path((const char *)arg1), &st));
1907
        goto do_stat;
1908
    case TARGET_NR_lstat:
1909
        ret = get_errno(lstat(path((const char *)arg1), &st));
1910
        goto do_stat;
1911
    case TARGET_NR_fstat:
1912
        {
1913
            ret = get_errno(fstat(arg1, &st));
1914
        do_stat:
1915
            if (!is_error(ret)) {
1916
                struct target_stat *target_st = (void *)arg2;
1917
                target_st->st_dev = tswap16(st.st_dev);
1918
                target_st->st_ino = tswapl(st.st_ino);
1919
                target_st->st_mode = tswap16(st.st_mode);
1920
                target_st->st_nlink = tswap16(st.st_nlink);
1921
                target_st->st_uid = tswap16(st.st_uid);
1922
                target_st->st_gid = tswap16(st.st_gid);
1923
                target_st->st_rdev = tswap16(st.st_rdev);
1924
                target_st->st_size = tswapl(st.st_size);
1925
                target_st->st_blksize = tswapl(st.st_blksize);
1926
                target_st->st_blocks = tswapl(st.st_blocks);
1927
                target_st->target_st_atime = tswapl(st.st_atime);
1928
                target_st->target_st_mtime = tswapl(st.st_mtime);
1929
                target_st->target_st_ctime = tswapl(st.st_ctime);
1930
            }
1931
        }
1932
        break;
1933
    case TARGET_NR_olduname:
1934
        goto unimplemented;
1935
    case TARGET_NR_iopl:
1936
        goto unimplemented;
1937
    case TARGET_NR_vhangup:
1938
        ret = get_errno(vhangup());
1939
        break;
1940
    case TARGET_NR_idle:
1941
        goto unimplemented;
1942
    case TARGET_NR_wait4:
1943
        {
1944
            int status;
1945
            target_long *status_ptr = (void *)arg2;
1946
            struct rusage rusage, *rusage_ptr;
1947
            struct target_rusage *target_rusage = (void *)arg4;
1948
            if (target_rusage)
1949
                rusage_ptr = &rusage;
1950
            else
1951
                rusage_ptr = NULL;
1952
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1953
            if (!is_error(ret)) {
1954
                if (status_ptr)
1955
                    *status_ptr = tswap32(status);
1956
                if (target_rusage) {
1957
                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
1958
                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
1959
                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
1960
                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
1961
                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
1962
                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
1963
                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
1964
                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
1965
                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
1966
                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
1967
                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
1968
                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
1969
                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
1970
                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
1971
                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
1972
                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
1973
                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
1974
                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
1975
                }
1976
            }
1977
        }
1978
        break;
1979
    case TARGET_NR_swapoff:
1980
        ret = get_errno(swapoff((const char *)arg1));
1981
        break;
1982
    case TARGET_NR_sysinfo:
1983
        goto unimplemented;
1984
    case TARGET_NR_ipc:
1985
        goto unimplemented;
1986
    case TARGET_NR_fsync:
1987
        ret = get_errno(fsync(arg1));
1988
        break;
1989
    case TARGET_NR_clone:
1990
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
1991
        break;
1992
#ifdef __NR_exit_group
1993
        /* new thread calls */
1994
    case TARGET_NR_exit_group:
1995
        ret = get_errno(exit_group(arg1));
1996
        break;
1997
#endif
1998
    case TARGET_NR_setdomainname:
1999
        ret = get_errno(setdomainname((const char *)arg1, arg2));
2000
        break;
2001
    case TARGET_NR_uname:
2002
        /* no need to transcode because we use the linux syscall */
2003
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
2004
        break;
2005
#ifdef TARGET_I386
2006
    case TARGET_NR_modify_ldt:
2007
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2008
        break;
2009
    case TARGET_NR_vm86old:
2010
        goto unimplemented;
2011
    case TARGET_NR_vm86:
2012
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
2013
        break;
2014
#endif
2015
    case TARGET_NR_adjtimex:
2016
        goto unimplemented;
2017
    case TARGET_NR_create_module:
2018
    case TARGET_NR_init_module:
2019
    case TARGET_NR_delete_module:
2020
    case TARGET_NR_get_kernel_syms:
2021
        goto unimplemented;
2022
    case TARGET_NR_quotactl:
2023
        goto unimplemented;
2024
    case TARGET_NR_getpgid:
2025
        ret = get_errno(getpgid(arg1));
2026
        break;
2027
    case TARGET_NR_fchdir:
2028
        ret = get_errno(fchdir(arg1));
2029
        break;
2030
    case TARGET_NR_bdflush:
2031
        goto unimplemented;
2032
    case TARGET_NR_sysfs:
2033
        goto unimplemented;
2034
    case TARGET_NR_personality:
2035
        ret = get_errno(personality(arg1));
2036
        break;
2037
    case TARGET_NR_afs_syscall:
2038
        goto unimplemented;
2039
    case TARGET_NR_setfsuid:
2040
        ret = get_errno(setfsuid(arg1));
2041
        break;
2042
    case TARGET_NR_setfsgid:
2043
        ret = get_errno(setfsgid(arg1));
2044
        break;
2045
    case TARGET_NR__llseek:
2046
        {
2047
            int64_t res;
2048
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2049
            *(int64_t *)arg4 = tswap64(res);
2050
        }
2051
        break;
2052
    case TARGET_NR_getdents:
2053
#if TARGET_LONG_SIZE != 4
2054
#error not supported
2055
#endif
2056
        {
2057
            struct dirent *dirp = (void *)arg2;
2058
            long count = arg3;
2059

    
2060
            ret = get_errno(sys_getdents(arg1, dirp, count));
2061
            if (!is_error(ret)) {
2062
                struct dirent *de;
2063
                int len = ret;
2064
                int reclen;
2065
                de = dirp;
2066
                while (len > 0) {
2067
                    reclen = de->d_reclen;
2068
                    if (reclen > len)
2069
                        break;
2070
                    de->d_reclen = tswap16(reclen);
2071
                    tswapls(&de->d_ino);
2072
                    tswapls(&de->d_off);
2073
                    de = (struct dirent *)((char *)de + reclen);
2074
                    len -= reclen;
2075
                }
2076
            }
2077
        }
2078
        break;
2079
    case TARGET_NR_getdents64:
2080
        {
2081
            struct dirent64 *dirp = (void *)arg2;
2082
            long count = arg3;
2083
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2084
            if (!is_error(ret)) {
2085
                struct dirent64 *de;
2086
                int len = ret;
2087
                int reclen;
2088
                de = dirp;
2089
                while (len > 0) {
2090
                    reclen = de->d_reclen;
2091
                    if (reclen > len)
2092
                        break;
2093
                    de->d_reclen = tswap16(reclen);
2094
                    tswap64s(&de->d_ino);
2095
                    tswap64s(&de->d_off);
2096
                    de = (struct dirent64 *)((char *)de + reclen);
2097
                    len -= reclen;
2098
                }
2099
            }
2100
        }
2101
        break;
2102
    case TARGET_NR__newselect:
2103
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2104
                        (void *)arg5);
2105
        break;
2106
    case TARGET_NR_poll:
2107
        {
2108
            struct target_pollfd *target_pfd = (void *)arg1;
2109
            unsigned int nfds = arg2;
2110
            int timeout = arg3;
2111
            struct pollfd *pfd;
2112
            unsigned int i;
2113

    
2114
            pfd = alloca(sizeof(struct pollfd) * nfds);
2115
            for(i = 0; i < nfds; i++) {
2116
                pfd[i].fd = tswap32(target_pfd[i].fd);
2117
                pfd[i].events = tswap16(target_pfd[i].events);
2118
            }
2119
            ret = get_errno(poll(pfd, nfds, timeout));
2120
            if (!is_error(ret)) {
2121
                for(i = 0; i < nfds; i++) {
2122
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2123
                }
2124
            }
2125
        }
2126
        break;
2127
    case TARGET_NR_flock:
2128
        /* NOTE: the flock constant seems to be the same for every
2129
           Linux platform */
2130
        ret = get_errno(flock(arg1, arg2));
2131
        break;
2132
    case TARGET_NR_readv:
2133
        {
2134
            int count = arg3;
2135
            int i;
2136
            struct iovec *vec;
2137
            struct target_iovec *target_vec = (void *)arg2;
2138

    
2139
            vec = alloca(count * sizeof(struct iovec));
2140
            for(i = 0;i < count; i++) {
2141
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2142
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2143
            }
2144
            ret = get_errno(readv(arg1, vec, count));
2145
        }
2146
        break;
2147
    case TARGET_NR_writev:
2148
        {
2149
            int count = arg3;
2150
            int i;
2151
            struct iovec *vec;
2152
            struct target_iovec *target_vec = (void *)arg2;
2153

    
2154
            vec = alloca(count * sizeof(struct iovec));
2155
            for(i = 0;i < count; i++) {
2156
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2157
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2158
            }
2159
            ret = get_errno(writev(arg1, vec, count));
2160
        }
2161
        break;
2162
    case TARGET_NR_getsid:
2163
        ret = get_errno(getsid(arg1));
2164
        break;
2165
    case TARGET_NR_fdatasync:
2166
        ret = get_errno(fdatasync(arg1));
2167
        break;
2168
    case TARGET_NR__sysctl:
2169
        goto unimplemented;
2170
    case TARGET_NR_sched_setparam:
2171
        {
2172
            struct sched_param *target_schp = (void *)arg2;
2173
            struct sched_param schp;
2174
            schp.sched_priority = tswap32(target_schp->sched_priority);
2175
            ret = get_errno(sched_setparam(arg1, &schp));
2176
        }
2177
        break;
2178
    case TARGET_NR_sched_getparam:
2179
        {
2180
            struct sched_param *target_schp = (void *)arg2;
2181
            struct sched_param schp;
2182
            ret = get_errno(sched_getparam(arg1, &schp));
2183
            if (!is_error(ret)) {
2184
                target_schp->sched_priority = tswap32(schp.sched_priority);
2185
            }
2186
        }
2187
        break;
2188
    case TARGET_NR_sched_setscheduler:
2189
        {
2190
            struct sched_param *target_schp = (void *)arg3;
2191
            struct sched_param schp;
2192
            schp.sched_priority = tswap32(target_schp->sched_priority);
2193
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2194
        }
2195
        break;
2196
    case TARGET_NR_sched_getscheduler:
2197
        ret = get_errno(sched_getscheduler(arg1));
2198
        break;
2199
    case TARGET_NR_sched_yield:
2200
        ret = get_errno(sched_yield());
2201
        break;
2202
    case TARGET_NR_sched_get_priority_max:
2203
        ret = get_errno(sched_get_priority_max(arg1));
2204
        break;
2205
    case TARGET_NR_sched_get_priority_min:
2206
        ret = get_errno(sched_get_priority_min(arg1));
2207
        break;
2208
    case TARGET_NR_sched_rr_get_interval:
2209
        {
2210
            struct target_timespec *target_ts = (void *)arg2;
2211
            struct timespec ts;
2212
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2213
            if (!is_error(ret)) {
2214
                target_ts->tv_sec = tswapl(ts.tv_sec);
2215
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2216
            }
2217
        }
2218
        break;
2219
    case TARGET_NR_nanosleep:
2220
        {
2221
            struct target_timespec *target_req = (void *)arg1;
2222
            struct target_timespec *target_rem = (void *)arg2;
2223
            struct timespec req, rem;
2224
            req.tv_sec = tswapl(target_req->tv_sec);
2225
            req.tv_nsec = tswapl(target_req->tv_nsec);
2226
            ret = get_errno(nanosleep(&req, &rem));
2227
            if (target_rem) {
2228
                target_rem->tv_sec = tswapl(rem.tv_sec);
2229
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2230
            }
2231
        }
2232
        break;
2233
    case TARGET_NR_setresuid:
2234
        ret = get_errno(setresuid(low2highuid(arg1), 
2235
                                  low2highuid(arg2), 
2236
                                  low2highuid(arg3)));
2237
        break;
2238
    case TARGET_NR_getresuid:
2239
        {
2240
            int ruid, euid, suid;
2241
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2242
            if (!is_error(ret)) {
2243
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2244
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2245
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2246
            }
2247
        }
2248
        break;
2249
    case TARGET_NR_setresgid:
2250
        ret = get_errno(setresgid(low2highgid(arg1), 
2251
                                  low2highgid(arg2), 
2252
                                  low2highgid(arg3)));
2253
        break;
2254
    case TARGET_NR_getresgid:
2255
        {
2256
            int rgid, egid, sgid;
2257
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2258
            if (!is_error(ret)) {
2259
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2260
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2261
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2262
            }
2263
        }
2264
        break;
2265
    case TARGET_NR_query_module:
2266
        goto unimplemented;
2267
    case TARGET_NR_nfsservctl:
2268
        goto unimplemented;
2269
    case TARGET_NR_prctl:
2270
        goto unimplemented;
2271
    case TARGET_NR_pread:
2272
        goto unimplemented;
2273
    case TARGET_NR_pwrite:
2274
        goto unimplemented;
2275
    case TARGET_NR_chown:
2276
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2277
        break;
2278
    case TARGET_NR_getcwd:
2279
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2280
        break;
2281
    case TARGET_NR_capget:
2282
        goto unimplemented;
2283
    case TARGET_NR_capset:
2284
        goto unimplemented;
2285
    case TARGET_NR_sigaltstack:
2286
        goto unimplemented;
2287
    case TARGET_NR_sendfile:
2288
        goto unimplemented;
2289
    case TARGET_NR_getpmsg:
2290
        goto unimplemented;
2291
    case TARGET_NR_putpmsg:
2292
        goto unimplemented;
2293
    case TARGET_NR_vfork:
2294
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2295
        break;
2296
    case TARGET_NR_ugetrlimit:
2297
    {
2298
        struct rlimit rlim;
2299
        ret = get_errno(getrlimit(arg1, &rlim));
2300
        if (!is_error(ret)) {
2301
            struct target_rlimit *target_rlim = (void *)arg2;
2302
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2303
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
2304
        }
2305
        break;
2306
    }
2307
    case TARGET_NR_truncate64:
2308
        goto unimplemented;
2309
    case TARGET_NR_ftruncate64:
2310
        goto unimplemented;
2311
    case TARGET_NR_stat64:
2312
        ret = get_errno(stat(path((const char *)arg1), &st));
2313
        goto do_stat64;
2314
    case TARGET_NR_lstat64:
2315
        ret = get_errno(lstat(path((const char *)arg1), &st));
2316
        goto do_stat64;
2317
    case TARGET_NR_fstat64:
2318
        {
2319
            ret = get_errno(fstat(arg1, &st));
2320
        do_stat64:
2321
            if (!is_error(ret)) {
2322
                struct target_stat64 *target_st = (void *)arg2;
2323
                memset(target_st, 0, sizeof(struct target_stat64));
2324
                target_st->st_dev = tswap16(st.st_dev);
2325
                target_st->st_ino = tswap64(st.st_ino);
2326
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2327
                target_st->__st_ino = tswapl(st.st_ino);
2328
#endif
2329
                target_st->st_mode = tswap32(st.st_mode);
2330
                target_st->st_nlink = tswap32(st.st_nlink);
2331
                target_st->st_uid = tswapl(st.st_uid);
2332
                target_st->st_gid = tswapl(st.st_gid);
2333
                target_st->st_rdev = tswap16(st.st_rdev);
2334
                /* XXX: better use of kernel struct */
2335
                target_st->st_size = tswap64(st.st_size);
2336
                target_st->st_blksize = tswapl(st.st_blksize);
2337
                target_st->st_blocks = tswapl(st.st_blocks);
2338
                target_st->target_st_atime = tswapl(st.st_atime);
2339
                target_st->target_st_mtime = tswapl(st.st_mtime);
2340
                target_st->target_st_ctime = tswapl(st.st_ctime);
2341
            }
2342
        }
2343
        break;
2344

    
2345
    case TARGET_NR_lchown32:
2346
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2347
        break;
2348
    case TARGET_NR_getuid32:
2349
        ret = get_errno(getuid());
2350
        break;
2351
    case TARGET_NR_getgid32:
2352
        ret = get_errno(getgid());
2353
        break;
2354
    case TARGET_NR_geteuid32:
2355
        ret = get_errno(geteuid());
2356
        break;
2357
    case TARGET_NR_getegid32:
2358
        ret = get_errno(getegid());
2359
        break;
2360
    case TARGET_NR_setreuid32:
2361
        ret = get_errno(setreuid(arg1, arg2));
2362
        break;
2363
    case TARGET_NR_setregid32:
2364
        ret = get_errno(setregid(arg1, arg2));
2365
        break;
2366
    case TARGET_NR_getgroups32:
2367
        goto unimplemented;
2368
    case TARGET_NR_setgroups32:
2369
        goto unimplemented;
2370
    case TARGET_NR_fchown32:
2371
        ret = get_errno(fchown(arg1, arg2, arg3));
2372
        break;
2373
    case TARGET_NR_setresuid32:
2374
        ret = get_errno(setresuid(arg1, arg2, arg3));
2375
        break;
2376
    case TARGET_NR_getresuid32:
2377
        {
2378
            int ruid, euid, suid;
2379
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2380
            if (!is_error(ret)) {
2381
                *(uint32_t *)arg1 = tswap32(ruid);
2382
                *(uint32_t *)arg2 = tswap32(euid);
2383
                *(uint32_t *)arg3 = tswap32(suid);
2384
            }
2385
        }
2386
        break;
2387
    case TARGET_NR_setresgid32:
2388
        ret = get_errno(setresgid(arg1, arg2, arg3));
2389
        break;
2390
    case TARGET_NR_getresgid32:
2391
        {
2392
            int rgid, egid, sgid;
2393
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2394
            if (!is_error(ret)) {
2395
                *(uint32_t *)arg1 = tswap32(rgid);
2396
                *(uint32_t *)arg2 = tswap32(egid);
2397
                *(uint32_t *)arg3 = tswap32(sgid);
2398
            }
2399
        }
2400
        break;
2401
    case TARGET_NR_chown32:
2402
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2403
        break;
2404
    case TARGET_NR_setuid32:
2405
        ret = get_errno(setuid(arg1));
2406
        break;
2407
    case TARGET_NR_setgid32:
2408
        ret = get_errno(setgid(arg1));
2409
        break;
2410
    case TARGET_NR_setfsuid32:
2411
        ret = get_errno(setfsuid(arg1));
2412
        break;
2413
    case TARGET_NR_setfsgid32:
2414
        ret = get_errno(setfsgid(arg1));
2415
        break;
2416
    case TARGET_NR_pivot_root:
2417
        goto unimplemented;
2418
    case TARGET_NR_mincore:
2419
        goto unimplemented;
2420
    case TARGET_NR_madvise:
2421
        goto unimplemented;
2422
#if TARGET_LONG_BITS == 32
2423
    case TARGET_NR_fcntl64:
2424
    {
2425
        struct flock64 fl;
2426
        struct target_flock64 *target_fl = (void *)arg3;
2427

    
2428
        switch(arg2) {
2429
        case F_GETLK64:
2430
            ret = get_errno(fcntl(arg1, arg2, &fl));
2431
            if (ret == 0) {
2432
                target_fl->l_type = tswap16(fl.l_type);
2433
                target_fl->l_whence = tswap16(fl.l_whence);
2434
                target_fl->l_start = tswap64(fl.l_start);
2435
                target_fl->l_len = tswap64(fl.l_len);
2436
                target_fl->l_pid = tswapl(fl.l_pid);
2437
            }
2438
            break;
2439

    
2440
        case F_SETLK64:
2441
        case F_SETLKW64:
2442
            fl.l_type = tswap16(target_fl->l_type);
2443
            fl.l_whence = tswap16(target_fl->l_whence);
2444
            fl.l_start = tswap64(target_fl->l_start);
2445
            fl.l_len = tswap64(target_fl->l_len);
2446
            fl.l_pid = tswapl(target_fl->l_pid);
2447
            ret = get_errno(fcntl(arg1, arg2, &fl));
2448
            break;
2449
        default:
2450
            ret = get_errno(fcntl(arg1, arg2, arg3));
2451
            break;
2452
        }
2453
        break;
2454
    }
2455
#endif
2456
    case TARGET_NR_security:
2457
        goto unimplemented;
2458
    case TARGET_NR_gettid:
2459
        ret = get_errno(gettid());
2460
        break;
2461
    case TARGET_NR_readahead:
2462
        goto unimplemented;
2463
    case TARGET_NR_setxattr:
2464
    case TARGET_NR_lsetxattr:
2465
    case TARGET_NR_fsetxattr:
2466
    case TARGET_NR_getxattr:
2467
    case TARGET_NR_lgetxattr:
2468
    case TARGET_NR_fgetxattr:
2469
    case TARGET_NR_listxattr:
2470
    case TARGET_NR_llistxattr:
2471
    case TARGET_NR_flistxattr:
2472
    case TARGET_NR_removexattr:
2473
    case TARGET_NR_lremovexattr:
2474
    case TARGET_NR_fremovexattr:
2475
        goto unimplemented_nowarn;
2476
    case TARGET_NR_set_thread_area:
2477
    case TARGET_NR_get_thread_area:
2478
        goto unimplemented_nowarn;
2479
    default:
2480
    unimplemented:
2481
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2482
    unimplemented_nowarn:
2483
        ret = -ENOSYS;
2484
        break;
2485
    }
2486
 fail:
2487
    return ret;
2488
}
2489