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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
/* this stack is the equivalent of the kernel stack associated with a
1062
   thread/process */
1063
#define NEW_STACK_SIZE 8192
1064

    
1065
static int clone_func(void *arg)
1066
{
1067
    CPUX86State *env = arg;
1068
    cpu_loop(env);
1069
    /* never exits */
1070
    return 0;
1071
}
1072

    
1073
int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
1074
{
1075
    int ret;
1076
    TaskState *ts;
1077
    uint8_t *new_stack;
1078
    CPUX86State *new_env;
1079
    
1080
    if (flags & CLONE_VM) {
1081
        if (!newsp)
1082
            newsp = env->regs[R_ESP];
1083
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1084
        memset(ts, 0, sizeof(TaskState));
1085
        new_stack = ts->stack;
1086
        ts->used = 1;
1087
        /* add in task state list */
1088
        ts->next = first_task_state;
1089
        first_task_state = ts;
1090
        /* we create a new CPU instance. */
1091
        new_env = cpu_x86_init();
1092
        memcpy(new_env, env, sizeof(CPUX86State));
1093
        new_env->regs[R_ESP] = newsp;
1094
        new_env->regs[R_EAX] = 0;
1095
        new_env->opaque = ts;
1096
#ifdef __ia64__
1097
        ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1098
#else
1099
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1100
#endif
1101
    } else {
1102
        /* if no CLONE_VM, we consider it is a fork */
1103
        if ((flags & ~CSIGNAL) != 0)
1104
            return -EINVAL;
1105
        ret = fork();
1106
    }
1107
    return ret;
1108
}
1109

    
1110
#endif
1111

    
1112
#define high2lowuid(x) (x)
1113
#define high2lowgid(x) (x)
1114
#define low2highuid(x) (x)
1115
#define low2highgid(x) (x)
1116

    
1117
void syscall_init(void)
1118
{
1119
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1120
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1121
#include "syscall_types.h"
1122
#undef STRUCT
1123
#undef STRUCT_SPECIAL
1124
}
1125
                                 
1126
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1127
                long arg4, long arg5, long arg6)
1128
{
1129
    long ret;
1130
    struct stat st;
1131
    struct kernel_statfs *stfs;
1132
    
1133
#ifdef DEBUG
1134
    gemu_log("syscall %d\n", num);
1135
#endif
1136
    switch(num) {
1137
    case TARGET_NR_exit:
1138
#ifdef HAVE_GPROF
1139
        _mcleanup();
1140
#endif
1141
        /* XXX: should free thread stack and CPU env */
1142
        _exit(arg1);
1143
        ret = 0; /* avoid warning */
1144
        break;
1145
    case TARGET_NR_read:
1146
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1147
        break;
1148
    case TARGET_NR_write:
1149
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1150
        break;
1151
    case TARGET_NR_open:
1152
        ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1153
        break;
1154
    case TARGET_NR_close:
1155
        ret = get_errno(close(arg1));
1156
        break;
1157
    case TARGET_NR_brk:
1158
        ret = do_brk((char *)arg1);
1159
        break;
1160
    case TARGET_NR_fork:
1161
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1162
        break;
1163
    case TARGET_NR_waitpid:
1164
        {
1165
            int *status = (int *)arg2;
1166
            ret = get_errno(waitpid(arg1, status, arg3));
1167
            if (!is_error(ret) && status)
1168
                tswapls((long *)&status);
1169
        }
1170
        break;
1171
    case TARGET_NR_creat:
1172
        ret = get_errno(creat((const char *)arg1, arg2));
1173
        break;
1174
    case TARGET_NR_link:
1175
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1176
        break;
1177
    case TARGET_NR_unlink:
1178
        ret = get_errno(unlink((const char *)arg1));
1179
        break;
1180
    case TARGET_NR_execve:
1181
        {
1182
            char **argp, **envp;
1183
            int argc, envc;
1184
            uint32_t *p;
1185
            char **q;
1186

    
1187
            argc = 0;
1188
            for (p = (void *)arg2; *p; p++)
1189
                argc++;
1190
            envc = 0;
1191
            for (p = (void *)arg3; *p; p++)
1192
                envc++;
1193

    
1194
            argp = alloca((argc + 1) * sizeof(void *));
1195
            envp = alloca((envc + 1) * sizeof(void *));
1196

    
1197
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1198
                *q = (void *)tswap32(*p);
1199
            *q = NULL;
1200

    
1201
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1202
                *q = (void *)tswap32(*p);
1203
            *q = NULL;
1204

    
1205
            ret = get_errno(execve((const char *)arg1, argp, envp));
1206
        }
1207
        break;
1208
    case TARGET_NR_chdir:
1209
        ret = get_errno(chdir((const char *)arg1));
1210
        break;
1211
    case TARGET_NR_time:
1212
        {
1213
            int *time_ptr = (int *)arg1;
1214
            ret = get_errno(time((time_t *)time_ptr));
1215
            if (!is_error(ret) && time_ptr)
1216
                tswap32s(time_ptr);
1217
        }
1218
        break;
1219
    case TARGET_NR_mknod:
1220
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1221
        break;
1222
    case TARGET_NR_chmod:
1223
        ret = get_errno(chmod((const char *)arg1, arg2));
1224
        break;
1225
    case TARGET_NR_lchown:
1226
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1227
        break;
1228
    case TARGET_NR_break:
1229
        goto unimplemented;
1230
    case TARGET_NR_oldstat:
1231
        goto unimplemented;
1232
    case TARGET_NR_lseek:
1233
        ret = get_errno(lseek(arg1, arg2, arg3));
1234
        break;
1235
    case TARGET_NR_getpid:
1236
        ret = get_errno(getpid());
1237
        break;
1238
    case TARGET_NR_mount:
1239
        /* need to look at the data field */
1240
        goto unimplemented;
1241
    case TARGET_NR_umount:
1242
        ret = get_errno(umount((const char *)arg1));
1243
        break;
1244
    case TARGET_NR_setuid:
1245
        ret = get_errno(setuid(low2highuid(arg1)));
1246
        break;
1247
    case TARGET_NR_getuid:
1248
        ret = get_errno(getuid());
1249
        break;
1250
    case TARGET_NR_stime:
1251
        {
1252
            int *time_ptr = (int *)arg1;
1253
            if (time_ptr)
1254
                tswap32s(time_ptr);
1255
            ret = get_errno(stime((time_t *)time_ptr));
1256
        }
1257
        break;
1258
    case TARGET_NR_ptrace:
1259
        goto unimplemented;
1260
    case TARGET_NR_alarm:
1261
        ret = alarm(arg1);
1262
        break;
1263
    case TARGET_NR_oldfstat:
1264
        goto unimplemented;
1265
    case TARGET_NR_pause:
1266
        ret = get_errno(pause());
1267
        break;
1268
    case TARGET_NR_utime:
1269
        goto unimplemented;
1270
    case TARGET_NR_stty:
1271
        goto unimplemented;
1272
    case TARGET_NR_gtty:
1273
        goto unimplemented;
1274
    case TARGET_NR_access:
1275
        ret = get_errno(access((const char *)arg1, arg2));
1276
        break;
1277
    case TARGET_NR_nice:
1278
        ret = get_errno(nice(arg1));
1279
        break;
1280
    case TARGET_NR_ftime:
1281
        goto unimplemented;
1282
    case TARGET_NR_sync:
1283
        sync();
1284
        ret = 0;
1285
        break;
1286
    case TARGET_NR_kill:
1287
        ret = get_errno(kill(arg1, arg2));
1288
        break;
1289
    case TARGET_NR_rename:
1290
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1291
        break;
1292
    case TARGET_NR_mkdir:
1293
        ret = get_errno(mkdir((const char *)arg1, arg2));
1294
        break;
1295
    case TARGET_NR_rmdir:
1296
        ret = get_errno(rmdir((const char *)arg1));
1297
        break;
1298
    case TARGET_NR_dup:
1299
        ret = get_errno(dup(arg1));
1300
        break;
1301
    case TARGET_NR_pipe:
1302
        {
1303
            int *pipe_ptr = (int *)arg1;
1304
            ret = get_errno(pipe(pipe_ptr));
1305
            if (!is_error(ret)) {
1306
                tswap32s(&pipe_ptr[0]);
1307
                tswap32s(&pipe_ptr[1]);
1308
            }
1309
        }
1310
        break;
1311
    case TARGET_NR_times:
1312
        {
1313
            struct target_tms *tmsp = (void *)arg1;
1314
            struct tms tms;
1315
            ret = get_errno(times(&tms));
1316
            if (tmsp) {
1317
                tmsp->tms_utime = tswapl(tms.tms_utime);
1318
                tmsp->tms_stime = tswapl(tms.tms_stime);
1319
                tmsp->tms_cutime = tswapl(tms.tms_cutime);
1320
                tmsp->tms_cstime = tswapl(tms.tms_cstime);
1321
            }
1322
        }
1323
        break;
1324
    case TARGET_NR_prof:
1325
        goto unimplemented;
1326
    case TARGET_NR_setgid:
1327
        ret = get_errno(setgid(low2highgid(arg1)));
1328
        break;
1329
    case TARGET_NR_getgid:
1330
        ret = get_errno(getgid());
1331
        break;
1332
    case TARGET_NR_signal:
1333
        goto unimplemented;
1334
    case TARGET_NR_geteuid:
1335
        ret = get_errno(geteuid());
1336
        break;
1337
    case TARGET_NR_getegid:
1338
        ret = get_errno(getegid());
1339
        break;
1340
    case TARGET_NR_acct:
1341
        goto unimplemented;
1342
    case TARGET_NR_umount2:
1343
        ret = get_errno(umount2((const char *)arg1, arg2));
1344
        break;
1345
    case TARGET_NR_lock:
1346
        goto unimplemented;
1347
    case TARGET_NR_ioctl:
1348
        ret = do_ioctl(arg1, arg2, arg3);
1349
        break;
1350
    case TARGET_NR_fcntl:
1351
    {
1352
        struct flock fl;
1353
        struct target_flock *target_fl = (void *)arg3;
1354

    
1355
        switch(arg2) {
1356
        case TARGET_F_GETLK:
1357
            ret = get_errno(fcntl(arg1, arg2, &fl));
1358
            if (ret == 0) {
1359
                target_fl->l_type = tswap16(fl.l_type);
1360
                target_fl->l_whence = tswap16(fl.l_whence);
1361
                target_fl->l_start = tswapl(fl.l_start);
1362
                target_fl->l_len = tswapl(fl.l_len);
1363
                target_fl->l_pid = tswapl(fl.l_pid);
1364
            }
1365
            break;
1366

    
1367
        case TARGET_F_SETLK:
1368
        case TARGET_F_SETLKW:
1369
            fl.l_type = tswap16(target_fl->l_type);
1370
            fl.l_whence = tswap16(target_fl->l_whence);
1371
            fl.l_start = tswapl(target_fl->l_start);
1372
            fl.l_len = tswapl(target_fl->l_len);
1373
            fl.l_pid = tswapl(target_fl->l_pid);
1374
            ret = get_errno(fcntl(arg1, arg2, &fl));
1375
            break;
1376

    
1377
        case TARGET_F_GETLK64:
1378
        case TARGET_F_SETLK64:
1379
        case TARGET_F_SETLKW64:
1380
            goto unimplemented;
1381
        default:
1382
            ret = get_errno(fcntl(arg1, arg2, arg3));
1383
            break;
1384
        }
1385
        break;
1386
    }
1387
    case TARGET_NR_mpx:
1388
        goto unimplemented;
1389
    case TARGET_NR_setpgid:
1390
        ret = get_errno(setpgid(arg1, arg2));
1391
        break;
1392
    case TARGET_NR_ulimit:
1393
        goto unimplemented;
1394
    case TARGET_NR_oldolduname:
1395
        goto unimplemented;
1396
    case TARGET_NR_umask:
1397
        ret = get_errno(umask(arg1));
1398
        break;
1399
    case TARGET_NR_chroot:
1400
        ret = get_errno(chroot((const char *)arg1));
1401
        break;
1402
    case TARGET_NR_ustat:
1403
        goto unimplemented;
1404
    case TARGET_NR_dup2:
1405
        ret = get_errno(dup2(arg1, arg2));
1406
        break;
1407
    case TARGET_NR_getppid:
1408
        ret = get_errno(getppid());
1409
        break;
1410
    case TARGET_NR_getpgrp:
1411
        ret = get_errno(getpgrp());
1412
        break;
1413
    case TARGET_NR_setsid:
1414
        ret = get_errno(setsid());
1415
        break;
1416
    case TARGET_NR_sigaction:
1417
        {
1418
            struct target_old_sigaction *old_act = (void *)arg2;
1419
            struct target_old_sigaction *old_oact = (void *)arg3;
1420
            struct target_sigaction act, oact, *pact;
1421
            if (old_act) {
1422
                act._sa_handler = old_act->_sa_handler;
1423
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1424
                act.sa_flags = old_act->sa_flags;
1425
                act.sa_restorer = old_act->sa_restorer;
1426
                pact = &act;
1427
            } else {
1428
                pact = NULL;
1429
            }
1430
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1431
            if (!is_error(ret) && old_oact) {
1432
                old_oact->_sa_handler = oact._sa_handler;
1433
                old_oact->sa_mask = oact.sa_mask.sig[0];
1434
                old_oact->sa_flags = oact.sa_flags;
1435
                old_oact->sa_restorer = oact.sa_restorer;
1436
            }
1437
        }
1438
        break;
1439
    case TARGET_NR_rt_sigaction:
1440
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1441
        break;
1442
    case TARGET_NR_sgetmask:
1443
        {
1444
            sigset_t cur_set;
1445
            target_ulong target_set;
1446
            sigprocmask(0, NULL, &cur_set);
1447
            host_to_target_old_sigset(&target_set, &cur_set);
1448
            ret = target_set;
1449
        }
1450
        break;
1451
    case TARGET_NR_ssetmask:
1452
        {
1453
            sigset_t set, oset, cur_set;
1454
            target_ulong target_set = arg1;
1455
            sigprocmask(0, NULL, &cur_set);
1456
            target_to_host_old_sigset(&set, &target_set);
1457
            sigorset(&set, &set, &cur_set);
1458
            sigprocmask(SIG_SETMASK, &set, &oset);
1459
            host_to_target_old_sigset(&target_set, &oset);
1460
            ret = target_set;
1461
        }
1462
        break;
1463
    case TARGET_NR_sigprocmask:
1464
        {
1465
            int how = arg1;
1466
            sigset_t set, oldset, *set_ptr;
1467
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1468
            
1469
            if (pset) {
1470
                switch(how) {
1471
                case TARGET_SIG_BLOCK:
1472
                    how = SIG_BLOCK;
1473
                    break;
1474
                case TARGET_SIG_UNBLOCK:
1475
                    how = SIG_UNBLOCK;
1476
                    break;
1477
                case TARGET_SIG_SETMASK:
1478
                    how = SIG_SETMASK;
1479
                    break;
1480
                default:
1481
                    ret = -EINVAL;
1482
                    goto fail;
1483
                }
1484
                target_to_host_old_sigset(&set, pset);
1485
                set_ptr = &set;
1486
            } else {
1487
                how = 0;
1488
                set_ptr = NULL;
1489
            }
1490
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1491
            if (!is_error(ret) && poldset) {
1492
                host_to_target_old_sigset(poldset, &oldset);
1493
            }
1494
        }
1495
        break;
1496
    case TARGET_NR_rt_sigprocmask:
1497
        {
1498
            int how = arg1;
1499
            sigset_t set, oldset, *set_ptr;
1500
            target_sigset_t *pset = (void *)arg2;
1501
            target_sigset_t *poldset = (void *)arg3;
1502
            
1503
            if (pset) {
1504
                switch(how) {
1505
                case TARGET_SIG_BLOCK:
1506
                    how = SIG_BLOCK;
1507
                    break;
1508
                case TARGET_SIG_UNBLOCK:
1509
                    how = SIG_UNBLOCK;
1510
                    break;
1511
                case TARGET_SIG_SETMASK:
1512
                    how = SIG_SETMASK;
1513
                    break;
1514
                default:
1515
                    ret = -EINVAL;
1516
                    goto fail;
1517
                }
1518
                target_to_host_sigset(&set, pset);
1519
                set_ptr = &set;
1520
            } else {
1521
                how = 0;
1522
                set_ptr = NULL;
1523
            }
1524
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1525
            if (!is_error(ret) && poldset) {
1526
                host_to_target_sigset(poldset, &oldset);
1527
            }
1528
        }
1529
        break;
1530
    case TARGET_NR_sigpending:
1531
        {
1532
            sigset_t set;
1533
            ret = get_errno(sigpending(&set));
1534
            if (!is_error(ret)) {
1535
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1536
            }
1537
        }
1538
        break;
1539
    case TARGET_NR_rt_sigpending:
1540
        {
1541
            sigset_t set;
1542
            ret = get_errno(sigpending(&set));
1543
            if (!is_error(ret)) {
1544
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1545
            }
1546
        }
1547
        break;
1548
    case TARGET_NR_sigsuspend:
1549
        {
1550
            sigset_t set;
1551
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1552
            ret = get_errno(sigsuspend(&set));
1553
        }
1554
        break;
1555
    case TARGET_NR_rt_sigsuspend:
1556
        {
1557
            sigset_t set;
1558
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1559
            ret = get_errno(sigsuspend(&set));
1560
        }
1561
        break;
1562
    case TARGET_NR_rt_sigtimedwait:
1563
        {
1564
            target_sigset_t *target_set = (void *)arg1;
1565
            target_siginfo_t *target_uinfo = (void *)arg2;
1566
            struct target_timespec *target_uts = (void *)arg3;
1567
            sigset_t set;
1568
            struct timespec uts, *puts;
1569
            siginfo_t uinfo;
1570
            
1571
            target_to_host_sigset(&set, target_set);
1572
            if (target_uts) {
1573
                puts = &uts;
1574
                puts->tv_sec = tswapl(target_uts->tv_sec);
1575
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1576
            } else {
1577
                puts = NULL;
1578
            }
1579
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1580
            if (!is_error(ret) && target_uinfo) {
1581
                host_to_target_siginfo(target_uinfo, &uinfo);
1582
            }
1583
        }
1584
        break;
1585
    case TARGET_NR_rt_sigqueueinfo:
1586
        {
1587
            siginfo_t uinfo;
1588
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1589
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1590
        }
1591
        break;
1592
    case TARGET_NR_sigreturn:
1593
        /* NOTE: ret is eax, so not transcoding must be done */
1594
        ret = do_sigreturn(cpu_env);
1595
        break;
1596
    case TARGET_NR_rt_sigreturn:
1597
        /* NOTE: ret is eax, so not transcoding must be done */
1598
        ret = do_rt_sigreturn(cpu_env);
1599
        break;
1600
    case TARGET_NR_setreuid:
1601
        ret = get_errno(setreuid(arg1, arg2));
1602
        break;
1603
    case TARGET_NR_setregid:
1604
        ret = get_errno(setregid(arg1, arg2));
1605
        break;
1606
    case TARGET_NR_sethostname:
1607
        ret = get_errno(sethostname((const char *)arg1, arg2));
1608
        break;
1609
    case TARGET_NR_setrlimit:
1610
        {
1611
            /* XXX: convert resource ? */
1612
            int resource = arg1;
1613
            struct target_rlimit *target_rlim = (void *)arg2;
1614
            struct rlimit rlim;
1615
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1616
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1617
            ret = get_errno(setrlimit(resource, &rlim));
1618
        }
1619
        break;
1620
    case TARGET_NR_getrlimit:
1621
        {
1622
            /* XXX: convert resource ? */
1623
            int resource = arg1;
1624
            struct target_rlimit *target_rlim = (void *)arg2;
1625
            struct rlimit rlim;
1626
            
1627
            ret = get_errno(getrlimit(resource, &rlim));
1628
            if (!is_error(ret)) {
1629
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1630
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1631
            }
1632
        }
1633
        break;
1634
    case TARGET_NR_getrusage:
1635
        goto unimplemented;
1636
    case TARGET_NR_gettimeofday:
1637
        {
1638
            struct target_timeval *target_tv = (void *)arg1;
1639
            struct timeval tv;
1640
            ret = get_errno(gettimeofday(&tv, NULL));
1641
            if (!is_error(ret)) {
1642
                host_to_target_timeval(target_tv, &tv);
1643
            }
1644
        }
1645
        break;
1646
    case TARGET_NR_settimeofday:
1647
        {
1648
            struct target_timeval *target_tv = (void *)arg1;
1649
            struct timeval tv;
1650
            target_to_host_timeval(&tv, target_tv);
1651
            ret = get_errno(settimeofday(&tv, NULL));
1652
        }
1653
        break;
1654
    case TARGET_NR_getgroups:
1655
        {
1656
            int gidsetsize = arg1;
1657
            uint16_t *target_grouplist = (void *)arg2;
1658
            gid_t *grouplist;
1659
            int i;
1660

    
1661
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1662
            ret = get_errno(getgroups(gidsetsize, grouplist));
1663
            if (!is_error(ret)) {
1664
                for(i = 0;i < gidsetsize; i++)
1665
                    target_grouplist[i] = tswap16(grouplist[i]);
1666
            }
1667
        }
1668
        break;
1669
    case TARGET_NR_setgroups:
1670
        {
1671
            int gidsetsize = arg1;
1672
            uint16_t *target_grouplist = (void *)arg2;
1673
            gid_t *grouplist;
1674
            int i;
1675

    
1676
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1677
            for(i = 0;i < gidsetsize; i++)
1678
                grouplist[i] = tswap16(target_grouplist[i]);
1679
            ret = get_errno(setgroups(gidsetsize, grouplist));
1680
        }
1681
        break;
1682
    case TARGET_NR_select:
1683
        goto unimplemented;
1684
    case TARGET_NR_symlink:
1685
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1686
        break;
1687
    case TARGET_NR_oldlstat:
1688
        goto unimplemented;
1689
    case TARGET_NR_readlink:
1690
        ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1691
        break;
1692
    case TARGET_NR_uselib:
1693
        goto unimplemented;
1694
    case TARGET_NR_swapon:
1695
        ret = get_errno(swapon((const char *)arg1, arg2));
1696
        break;
1697
    case TARGET_NR_reboot:
1698
        goto unimplemented;
1699
    case TARGET_NR_readdir:
1700
        goto unimplemented;
1701
#ifdef TARGET_I386
1702
    case TARGET_NR_mmap:
1703
        {
1704
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1705
            vptr = (uint32_t *)arg1;
1706
            v1 = tswap32(vptr[0]);
1707
            v2 = tswap32(vptr[1]);
1708
            v3 = tswap32(vptr[2]);
1709
            v4 = tswap32(vptr[3]);
1710
            v5 = tswap32(vptr[4]);
1711
            v6 = tswap32(vptr[5]);
1712
            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
1713
        }
1714
        break;
1715
#endif
1716
#ifdef TARGET_I386
1717
    case TARGET_NR_mmap2:
1718
#else
1719
    case TARGET_NR_mmap:
1720
#endif
1721
        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
1722
        break;
1723
    case TARGET_NR_munmap:
1724
        ret = get_errno(munmap((void *)arg1, arg2));
1725
        break;
1726
    case TARGET_NR_mprotect:
1727
        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
1728
        break;
1729
    case TARGET_NR_mremap:
1730
        ret = get_errno((long)mremap((void *)arg1, arg2, arg3, arg4));
1731
        break;
1732
    case TARGET_NR_msync:
1733
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1734
        break;
1735
    case TARGET_NR_mlock:
1736
        ret = get_errno(mlock((void *)arg1, arg2));
1737
        break;
1738
    case TARGET_NR_munlock:
1739
        ret = get_errno(munlock((void *)arg1, arg2));
1740
        break;
1741
    case TARGET_NR_mlockall:
1742
        ret = get_errno(mlockall(arg1));
1743
        break;
1744
    case TARGET_NR_munlockall:
1745
        ret = get_errno(munlockall());
1746
        break;
1747
    case TARGET_NR_truncate:
1748
        ret = get_errno(truncate((const char *)arg1, arg2));
1749
        break;
1750
    case TARGET_NR_ftruncate:
1751
        ret = get_errno(ftruncate(arg1, arg2));
1752
        break;
1753
    case TARGET_NR_fchmod:
1754
        ret = get_errno(fchmod(arg1, arg2));
1755
        break;
1756
    case TARGET_NR_fchown:
1757
        ret = get_errno(fchown(arg1, arg2, arg3));
1758
        break;
1759
    case TARGET_NR_getpriority:
1760
        ret = get_errno(getpriority(arg1, arg2));
1761
        break;
1762
    case TARGET_NR_setpriority:
1763
        ret = get_errno(setpriority(arg1, arg2, arg3));
1764
        break;
1765
    case TARGET_NR_profil:
1766
        goto unimplemented;
1767
    case TARGET_NR_statfs:
1768
        stfs = (void *)arg2;
1769
        ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
1770
    convert_statfs:
1771
        if (!is_error(ret)) {
1772
            tswap32s(&stfs->f_type);
1773
            tswap32s(&stfs->f_bsize);
1774
            tswap32s(&stfs->f_blocks);
1775
            tswap32s(&stfs->f_bfree);
1776
            tswap32s(&stfs->f_bavail);
1777
            tswap32s(&stfs->f_files);
1778
            tswap32s(&stfs->f_ffree);
1779
            tswap32s(&stfs->f_fsid.val[0]);
1780
            tswap32s(&stfs->f_fsid.val[1]);
1781
            tswap32s(&stfs->f_namelen);
1782
        }
1783
        break;
1784
    case TARGET_NR_fstatfs:
1785
        stfs = (void *)arg2;
1786
        ret = get_errno(sys_fstatfs(arg1, stfs));
1787
        goto convert_statfs;
1788
    case TARGET_NR_ioperm:
1789
        goto unimplemented;
1790
    case TARGET_NR_socketcall:
1791
        ret = do_socketcall(arg1, (int32_t *)arg2);
1792
        break;
1793
    case TARGET_NR_syslog:
1794
        goto unimplemented;
1795
    case TARGET_NR_setitimer:
1796
        {
1797
            struct target_itimerval *target_value = (void *)arg2;
1798
            struct target_itimerval *target_ovalue = (void *)arg3;
1799
            struct itimerval value, ovalue, *pvalue;
1800

    
1801
            if (target_value) {
1802
                pvalue = &value;
1803
                target_to_host_timeval(&pvalue->it_interval, 
1804
                                       &target_value->it_interval);
1805
                target_to_host_timeval(&pvalue->it_value, 
1806
                                       &target_value->it_value);
1807
            } else {
1808
                pvalue = NULL;
1809
            }
1810
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1811
            if (!is_error(ret) && target_ovalue) {
1812
                host_to_target_timeval(&target_ovalue->it_interval, 
1813
                                       &ovalue.it_interval);
1814
                host_to_target_timeval(&target_ovalue->it_value, 
1815
                                       &ovalue.it_value);
1816
            }
1817
        }
1818
        break;
1819
    case TARGET_NR_getitimer:
1820
        {
1821
            struct target_itimerval *target_value = (void *)arg2;
1822
            struct itimerval value;
1823
            
1824
            ret = get_errno(getitimer(arg1, &value));
1825
            if (!is_error(ret) && target_value) {
1826
                host_to_target_timeval(&target_value->it_interval, 
1827
                                       &value.it_interval);
1828
                host_to_target_timeval(&target_value->it_value, 
1829
                                       &value.it_value);
1830
            }
1831
        }
1832
        break;
1833
    case TARGET_NR_stat:
1834
        ret = get_errno(stat(path((const char *)arg1), &st));
1835
        goto do_stat;
1836
    case TARGET_NR_lstat:
1837
        ret = get_errno(lstat(path((const char *)arg1), &st));
1838
        goto do_stat;
1839
    case TARGET_NR_fstat:
1840
        {
1841
            ret = get_errno(fstat(arg1, &st));
1842
        do_stat:
1843
            if (!is_error(ret)) {
1844
                struct target_stat *target_st = (void *)arg2;
1845
                target_st->st_dev = tswap16(st.st_dev);
1846
                target_st->st_ino = tswapl(st.st_ino);
1847
                target_st->st_mode = tswap16(st.st_mode);
1848
                target_st->st_nlink = tswap16(st.st_nlink);
1849
                target_st->st_uid = tswap16(st.st_uid);
1850
                target_st->st_gid = tswap16(st.st_gid);
1851
                target_st->st_rdev = tswap16(st.st_rdev);
1852
                target_st->st_size = tswapl(st.st_size);
1853
                target_st->st_blksize = tswapl(st.st_blksize);
1854
                target_st->st_blocks = tswapl(st.st_blocks);
1855
                target_st->target_st_atime = tswapl(st.st_atime);
1856
                target_st->target_st_mtime = tswapl(st.st_mtime);
1857
                target_st->target_st_ctime = tswapl(st.st_ctime);
1858
            }
1859
        }
1860
        break;
1861
    case TARGET_NR_olduname:
1862
        goto unimplemented;
1863
    case TARGET_NR_iopl:
1864
        goto unimplemented;
1865
    case TARGET_NR_vhangup:
1866
        ret = get_errno(vhangup());
1867
        break;
1868
    case TARGET_NR_idle:
1869
        goto unimplemented;
1870
    case TARGET_NR_wait4:
1871
        {
1872
            int status;
1873
            target_long *status_ptr = (void *)arg2;
1874
            struct rusage rusage, *rusage_ptr;
1875
            struct target_rusage *target_rusage = (void *)arg4;
1876
            if (target_rusage)
1877
                rusage_ptr = &rusage;
1878
            else
1879
                rusage_ptr = NULL;
1880
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1881
            if (!is_error(ret)) {
1882
                if (status_ptr)
1883
                    *status_ptr = tswap32(status);
1884
                if (target_rusage) {
1885
                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
1886
                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
1887
                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
1888
                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
1889
                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
1890
                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
1891
                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
1892
                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
1893
                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
1894
                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
1895
                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
1896
                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
1897
                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
1898
                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
1899
                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
1900
                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
1901
                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
1902
                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
1903
                }
1904
            }
1905
        }
1906
        break;
1907
    case TARGET_NR_swapoff:
1908
        ret = get_errno(swapoff((const char *)arg1));
1909
        break;
1910
    case TARGET_NR_sysinfo:
1911
        goto unimplemented;
1912
    case TARGET_NR_ipc:
1913
        goto unimplemented;
1914
    case TARGET_NR_fsync:
1915
        ret = get_errno(fsync(arg1));
1916
        break;
1917
    case TARGET_NR_clone:
1918
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
1919
        break;
1920
#ifdef __NR_exit_group
1921
        /* new thread calls */
1922
    case TARGET_NR_exit_group:
1923
        ret = get_errno(exit_group(arg1));
1924
        break;
1925
#endif
1926
    case TARGET_NR_setdomainname:
1927
        ret = get_errno(setdomainname((const char *)arg1, arg2));
1928
        break;
1929
    case TARGET_NR_uname:
1930
        /* no need to transcode because we use the linux syscall */
1931
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
1932
        break;
1933
#ifdef TARGET_I386
1934
    case TARGET_NR_modify_ldt:
1935
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
1936
        break;
1937
    case TARGET_NR_vm86old:
1938
        goto unimplemented;
1939
    case TARGET_NR_vm86:
1940
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
1941
        break;
1942
#endif
1943
    case TARGET_NR_adjtimex:
1944
        goto unimplemented;
1945
    case TARGET_NR_create_module:
1946
    case TARGET_NR_init_module:
1947
    case TARGET_NR_delete_module:
1948
    case TARGET_NR_get_kernel_syms:
1949
        goto unimplemented;
1950
    case TARGET_NR_quotactl:
1951
        goto unimplemented;
1952
    case TARGET_NR_getpgid:
1953
        ret = get_errno(getpgid(arg1));
1954
        break;
1955
    case TARGET_NR_fchdir:
1956
        ret = get_errno(fchdir(arg1));
1957
        break;
1958
    case TARGET_NR_bdflush:
1959
        goto unimplemented;
1960
    case TARGET_NR_sysfs:
1961
        goto unimplemented;
1962
    case TARGET_NR_personality:
1963
        ret = get_errno(personality(arg1));
1964
        break;
1965
    case TARGET_NR_afs_syscall:
1966
        goto unimplemented;
1967
    case TARGET_NR_setfsuid:
1968
        ret = get_errno(setfsuid(arg1));
1969
        break;
1970
    case TARGET_NR_setfsgid:
1971
        ret = get_errno(setfsgid(arg1));
1972
        break;
1973
    case TARGET_NR__llseek:
1974
        {
1975
            int64_t res;
1976
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
1977
            *(int64_t *)arg4 = tswap64(res);
1978
        }
1979
        break;
1980
    case TARGET_NR_getdents:
1981
#if TARGET_LONG_SIZE != 4
1982
#error not supported
1983
#endif
1984
        {
1985
            struct dirent *dirp = (void *)arg2;
1986
            long count = arg3;
1987

    
1988
            ret = get_errno(sys_getdents(arg1, dirp, count));
1989
            if (!is_error(ret)) {
1990
                struct dirent *de;
1991
                int len = ret;
1992
                int reclen;
1993
                de = dirp;
1994
                while (len > 0) {
1995
                    reclen = de->d_reclen;
1996
                    if (reclen > len)
1997
                        break;
1998
                    de->d_reclen = tswap16(reclen);
1999
                    tswapls(&de->d_ino);
2000
                    tswapls(&de->d_off);
2001
                    de = (struct dirent *)((char *)de + reclen);
2002
                    len -= reclen;
2003
                }
2004
            }
2005
        }
2006
        break;
2007
    case TARGET_NR_getdents64:
2008
        {
2009
            struct dirent64 *dirp = (void *)arg2;
2010
            long count = arg3;
2011
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2012
            if (!is_error(ret)) {
2013
                struct dirent64 *de;
2014
                int len = ret;
2015
                int reclen;
2016
                de = dirp;
2017
                while (len > 0) {
2018
                    reclen = de->d_reclen;
2019
                    if (reclen > len)
2020
                        break;
2021
                    de->d_reclen = tswap16(reclen);
2022
                    tswap64s(&de->d_ino);
2023
                    tswap64s(&de->d_off);
2024
                    de = (struct dirent64 *)((char *)de + reclen);
2025
                    len -= reclen;
2026
                }
2027
            }
2028
        }
2029
        break;
2030
    case TARGET_NR__newselect:
2031
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2032
                        (void *)arg5);
2033
        break;
2034
    case TARGET_NR_poll:
2035
        {
2036
            struct target_pollfd *target_pfd = (void *)arg1;
2037
            unsigned int nfds = arg2;
2038
            int timeout = arg3;
2039
            struct pollfd *pfd;
2040
            unsigned int i;
2041

    
2042
            pfd = alloca(sizeof(struct pollfd) * nfds);
2043
            for(i = 0; i < nfds; i++) {
2044
                pfd[i].fd = tswap32(target_pfd[i].fd);
2045
                pfd[i].events = tswap16(target_pfd[i].events);
2046
            }
2047
            ret = get_errno(poll(pfd, nfds, timeout));
2048
            if (!is_error(ret)) {
2049
                for(i = 0; i < nfds; i++) {
2050
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2051
                }
2052
            }
2053
        }
2054
        break;
2055
    case TARGET_NR_flock:
2056
        /* NOTE: the flock constant seems to be the same for every
2057
           Linux platform */
2058
        ret = get_errno(flock(arg1, arg2));
2059
        break;
2060
    case TARGET_NR_readv:
2061
        {
2062
            int count = arg3;
2063
            int i;
2064
            struct iovec *vec;
2065
            struct target_iovec *target_vec = (void *)arg2;
2066

    
2067
            vec = alloca(count * sizeof(struct iovec));
2068
            for(i = 0;i < count; i++) {
2069
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2070
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2071
            }
2072
            ret = get_errno(readv(arg1, vec, count));
2073
        }
2074
        break;
2075
    case TARGET_NR_writev:
2076
        {
2077
            int count = arg3;
2078
            int i;
2079
            struct iovec *vec;
2080
            struct target_iovec *target_vec = (void *)arg2;
2081

    
2082
            vec = alloca(count * sizeof(struct iovec));
2083
            for(i = 0;i < count; i++) {
2084
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2085
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2086
            }
2087
            ret = get_errno(writev(arg1, vec, count));
2088
        }
2089
        break;
2090
    case TARGET_NR_getsid:
2091
        ret = get_errno(getsid(arg1));
2092
        break;
2093
    case TARGET_NR_fdatasync:
2094
        ret = get_errno(fdatasync(arg1));
2095
        break;
2096
    case TARGET_NR__sysctl:
2097
        goto unimplemented;
2098
    case TARGET_NR_sched_setparam:
2099
        {
2100
            struct sched_param *target_schp = (void *)arg2;
2101
            struct sched_param schp;
2102
            schp.sched_priority = tswap32(target_schp->sched_priority);
2103
            ret = get_errno(sched_setparam(arg1, &schp));
2104
        }
2105
        break;
2106
    case TARGET_NR_sched_getparam:
2107
        {
2108
            struct sched_param *target_schp = (void *)arg2;
2109
            struct sched_param schp;
2110
            ret = get_errno(sched_getparam(arg1, &schp));
2111
            if (!is_error(ret)) {
2112
                target_schp->sched_priority = tswap32(schp.sched_priority);
2113
            }
2114
        }
2115
        break;
2116
    case TARGET_NR_sched_setscheduler:
2117
        {
2118
            struct sched_param *target_schp = (void *)arg3;
2119
            struct sched_param schp;
2120
            schp.sched_priority = tswap32(target_schp->sched_priority);
2121
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2122
        }
2123
        break;
2124
    case TARGET_NR_sched_getscheduler:
2125
        ret = get_errno(sched_getscheduler(arg1));
2126
        break;
2127
    case TARGET_NR_sched_yield:
2128
        ret = get_errno(sched_yield());
2129
        break;
2130
    case TARGET_NR_sched_get_priority_max:
2131
        ret = get_errno(sched_get_priority_max(arg1));
2132
        break;
2133
    case TARGET_NR_sched_get_priority_min:
2134
        ret = get_errno(sched_get_priority_min(arg1));
2135
        break;
2136
    case TARGET_NR_sched_rr_get_interval:
2137
        {
2138
            struct target_timespec *target_ts = (void *)arg2;
2139
            struct timespec ts;
2140
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2141
            if (!is_error(ret)) {
2142
                target_ts->tv_sec = tswapl(ts.tv_sec);
2143
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2144
            }
2145
        }
2146
        break;
2147
    case TARGET_NR_nanosleep:
2148
        {
2149
            struct target_timespec *target_req = (void *)arg1;
2150
            struct target_timespec *target_rem = (void *)arg2;
2151
            struct timespec req, rem;
2152
            req.tv_sec = tswapl(target_req->tv_sec);
2153
            req.tv_nsec = tswapl(target_req->tv_nsec);
2154
            ret = get_errno(nanosleep(&req, &rem));
2155
            if (target_rem) {
2156
                target_rem->tv_sec = tswapl(rem.tv_sec);
2157
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2158
            }
2159
        }
2160
        break;
2161
    case TARGET_NR_setresuid:
2162
        ret = get_errno(setresuid(low2highuid(arg1), 
2163
                                  low2highuid(arg2), 
2164
                                  low2highuid(arg3)));
2165
        break;
2166
    case TARGET_NR_getresuid:
2167
        {
2168
            int ruid, euid, suid;
2169
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2170
            if (!is_error(ret)) {
2171
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2172
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2173
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2174
            }
2175
        }
2176
        break;
2177
    case TARGET_NR_setresgid:
2178
        ret = get_errno(setresgid(low2highgid(arg1), 
2179
                                  low2highgid(arg2), 
2180
                                  low2highgid(arg3)));
2181
        break;
2182
    case TARGET_NR_getresgid:
2183
        {
2184
            int rgid, egid, sgid;
2185
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2186
            if (!is_error(ret)) {
2187
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2188
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2189
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2190
            }
2191
        }
2192
        break;
2193
    case TARGET_NR_query_module:
2194
        goto unimplemented;
2195
    case TARGET_NR_nfsservctl:
2196
        goto unimplemented;
2197
    case TARGET_NR_prctl:
2198
        goto unimplemented;
2199
    case TARGET_NR_pread:
2200
        goto unimplemented;
2201
    case TARGET_NR_pwrite:
2202
        goto unimplemented;
2203
    case TARGET_NR_chown:
2204
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2205
        break;
2206
    case TARGET_NR_getcwd:
2207
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2208
        break;
2209
    case TARGET_NR_capget:
2210
        goto unimplemented;
2211
    case TARGET_NR_capset:
2212
        goto unimplemented;
2213
    case TARGET_NR_sigaltstack:
2214
        goto unimplemented;
2215
    case TARGET_NR_sendfile:
2216
        goto unimplemented;
2217
    case TARGET_NR_getpmsg:
2218
        goto unimplemented;
2219
    case TARGET_NR_putpmsg:
2220
        goto unimplemented;
2221
    case TARGET_NR_vfork:
2222
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2223
        break;
2224
    case TARGET_NR_ugetrlimit:
2225
    {
2226
        struct rlimit rlim;
2227
        ret = get_errno(getrlimit(arg1, &rlim));
2228
        if (!is_error(ret)) {
2229
            struct target_rlimit *target_rlim = (void *)arg2;
2230
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2231
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
2232
        }
2233
        break;
2234
    }
2235
    case TARGET_NR_truncate64:
2236
        goto unimplemented;
2237
    case TARGET_NR_ftruncate64:
2238
        goto unimplemented;
2239
    case TARGET_NR_stat64:
2240
        ret = get_errno(stat(path((const char *)arg1), &st));
2241
        goto do_stat64;
2242
    case TARGET_NR_lstat64:
2243
        ret = get_errno(lstat(path((const char *)arg1), &st));
2244
        goto do_stat64;
2245
    case TARGET_NR_fstat64:
2246
        {
2247
            ret = get_errno(fstat(arg1, &st));
2248
        do_stat64:
2249
            if (!is_error(ret)) {
2250
                struct target_stat64 *target_st = (void *)arg2;
2251
                memset(target_st, 0, sizeof(struct target_stat64));
2252
                target_st->st_dev = tswap16(st.st_dev);
2253
                target_st->st_ino = tswap64(st.st_ino);
2254
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2255
                target_st->__st_ino = tswapl(st.st_ino);
2256
#endif
2257
                target_st->st_mode = tswap32(st.st_mode);
2258
                target_st->st_nlink = tswap32(st.st_nlink);
2259
                target_st->st_uid = tswapl(st.st_uid);
2260
                target_st->st_gid = tswapl(st.st_gid);
2261
                target_st->st_rdev = tswap16(st.st_rdev);
2262
                /* XXX: better use of kernel struct */
2263
                target_st->st_size = tswap64(st.st_size);
2264
                target_st->st_blksize = tswapl(st.st_blksize);
2265
                target_st->st_blocks = tswapl(st.st_blocks);
2266
                target_st->target_st_atime = tswapl(st.st_atime);
2267
                target_st->target_st_mtime = tswapl(st.st_mtime);
2268
                target_st->target_st_ctime = tswapl(st.st_ctime);
2269
            }
2270
        }
2271
        break;
2272

    
2273
    case TARGET_NR_lchown32:
2274
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2275
        break;
2276
    case TARGET_NR_getuid32:
2277
        ret = get_errno(getuid());
2278
        break;
2279
    case TARGET_NR_getgid32:
2280
        ret = get_errno(getgid());
2281
        break;
2282
    case TARGET_NR_geteuid32:
2283
        ret = get_errno(geteuid());
2284
        break;
2285
    case TARGET_NR_getegid32:
2286
        ret = get_errno(getegid());
2287
        break;
2288
    case TARGET_NR_setreuid32:
2289
        ret = get_errno(setreuid(arg1, arg2));
2290
        break;
2291
    case TARGET_NR_setregid32:
2292
        ret = get_errno(setregid(arg1, arg2));
2293
        break;
2294
    case TARGET_NR_getgroups32:
2295
        goto unimplemented;
2296
    case TARGET_NR_setgroups32:
2297
        goto unimplemented;
2298
    case TARGET_NR_fchown32:
2299
        ret = get_errno(fchown(arg1, arg2, arg3));
2300
        break;
2301
    case TARGET_NR_setresuid32:
2302
        ret = get_errno(setresuid(arg1, arg2, arg3));
2303
        break;
2304
    case TARGET_NR_getresuid32:
2305
        {
2306
            int ruid, euid, suid;
2307
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2308
            if (!is_error(ret)) {
2309
                *(uint32_t *)arg1 = tswap32(ruid);
2310
                *(uint32_t *)arg2 = tswap32(euid);
2311
                *(uint32_t *)arg3 = tswap32(suid);
2312
            }
2313
        }
2314
        break;
2315
    case TARGET_NR_setresgid32:
2316
        ret = get_errno(setresgid(arg1, arg2, arg3));
2317
        break;
2318
    case TARGET_NR_getresgid32:
2319
        {
2320
            int rgid, egid, sgid;
2321
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2322
            if (!is_error(ret)) {
2323
                *(uint32_t *)arg1 = tswap32(rgid);
2324
                *(uint32_t *)arg2 = tswap32(egid);
2325
                *(uint32_t *)arg3 = tswap32(sgid);
2326
            }
2327
        }
2328
        break;
2329
    case TARGET_NR_chown32:
2330
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2331
        break;
2332
    case TARGET_NR_setuid32:
2333
        ret = get_errno(setuid(arg1));
2334
        break;
2335
    case TARGET_NR_setgid32:
2336
        ret = get_errno(setgid(arg1));
2337
        break;
2338
    case TARGET_NR_setfsuid32:
2339
        ret = get_errno(setfsuid(arg1));
2340
        break;
2341
    case TARGET_NR_setfsgid32:
2342
        ret = get_errno(setfsgid(arg1));
2343
        break;
2344
    case TARGET_NR_pivot_root:
2345
        goto unimplemented;
2346
    case TARGET_NR_mincore:
2347
        goto unimplemented;
2348
    case TARGET_NR_madvise:
2349
        goto unimplemented;
2350
#if TARGET_LONG_BITS == 32
2351
    case TARGET_NR_fcntl64:
2352
    {
2353
        struct flock64 fl;
2354
        struct target_flock64 *target_fl = (void *)arg3;
2355

    
2356
        switch(arg2) {
2357
        case F_GETLK64:
2358
            ret = get_errno(fcntl(arg1, arg2, &fl));
2359
            if (ret == 0) {
2360
                target_fl->l_type = tswap16(fl.l_type);
2361
                target_fl->l_whence = tswap16(fl.l_whence);
2362
                target_fl->l_start = tswap64(fl.l_start);
2363
                target_fl->l_len = tswap64(fl.l_len);
2364
                target_fl->l_pid = tswapl(fl.l_pid);
2365
            }
2366
            break;
2367

    
2368
        case F_SETLK64:
2369
        case F_SETLKW64:
2370
            fl.l_type = tswap16(target_fl->l_type);
2371
            fl.l_whence = tswap16(target_fl->l_whence);
2372
            fl.l_start = tswap64(target_fl->l_start);
2373
            fl.l_len = tswap64(target_fl->l_len);
2374
            fl.l_pid = tswapl(target_fl->l_pid);
2375
            ret = get_errno(fcntl(arg1, arg2, &fl));
2376
            break;
2377
        default:
2378
            ret = get_errno(fcntl(arg1, arg2, arg3));
2379
            break;
2380
        }
2381
        break;
2382
    }
2383
#endif
2384
    case TARGET_NR_security:
2385
        goto unimplemented;
2386
    case TARGET_NR_gettid:
2387
        ret = get_errno(gettid());
2388
        break;
2389
    case TARGET_NR_readahead:
2390
        goto unimplemented;
2391
    case TARGET_NR_setxattr:
2392
    case TARGET_NR_lsetxattr:
2393
    case TARGET_NR_fsetxattr:
2394
    case TARGET_NR_getxattr:
2395
    case TARGET_NR_lgetxattr:
2396
    case TARGET_NR_fgetxattr:
2397
    case TARGET_NR_listxattr:
2398
    case TARGET_NR_llistxattr:
2399
    case TARGET_NR_flistxattr:
2400
    case TARGET_NR_removexattr:
2401
    case TARGET_NR_lremovexattr:
2402
    case TARGET_NR_fremovexattr:
2403
        goto unimplemented_nowarn;
2404
    case TARGET_NR_set_thread_area:
2405
    case TARGET_NR_get_thread_area:
2406
        goto unimplemented_nowarn;
2407
    default:
2408
    unimplemented:
2409
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2410
    unimplemented_nowarn:
2411
        ret = -ENOSYS;
2412
        break;
2413
    }
2414
 fail:
2415
    return ret;
2416
}
2417