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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
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 *  the Free Software Foundation; either version 2 of the License, or
9
 *  (at your option) any later version.
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 *
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
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 *  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.
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 */
20
#include <stdlib.h>
21
#include <stdio.h>
22
#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/time.h>
33
#include <sys/stat.h>
34
#include <sys/mount.h>
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#include <sys/resource.h>
36
#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
39
#include <sched.h>
40
#include <sys/socket.h>
41
#include <sys/uio.h>
42
#include <sys/poll.h>
43
#include <sys/times.h>
44
//#include <sys/user.h>
45
#include <netinet/tcp.h>
46

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

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

    
62
#include "qemu.h"
63

    
64
//#define DEBUG
65

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

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

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

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

    
88
#if defined(__alpha__) || defined (__ia64__)
89
#define __NR__llseek __NR_lseek
90
#endif
91

    
92
#ifdef __NR_gettid
93
_syscall0(int, gettid)
94
#else
95
static int gettid(void) {
96
    return -ENOSYS;
97
}
98
#endif
99
_syscall1(int,sys_uname,struct new_utsname *,buf)
100
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
101
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
102
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
103
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
104
          loff_t *, res, uint, wh);
105
_syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
106
_syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
107
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
108
#ifdef __NR_exit_group
109
_syscall1(int,exit_group,int,error_code)
110
#endif
111

    
112
extern int personality(int);
113
extern int flock(int, int);
114
extern int setfsuid(int);
115
extern int setfsgid(int);
116
extern int setresuid(uid_t, uid_t, uid_t);
117
extern int getresuid(uid_t *, uid_t *, uid_t *);
118
extern int setresgid(gid_t, gid_t, gid_t);
119
extern int getresgid(gid_t *, gid_t *, gid_t *);
120

    
121
static inline long get_errno(long ret)
122
{
123
    if (ret == -1)
124
        return -errno;
125
    else
126
        return ret;
127
}
128

    
129
static inline int is_error(long ret)
130
{
131
    return (unsigned long)ret >= (unsigned long)(-4096);
132
}
133

    
134
static char *target_brk;
135
static char *target_original_brk;
136

    
137
void target_set_brk(char *new_brk)
138
{
139
    target_brk = new_brk;
140
    target_original_brk = new_brk;
141
}
142

    
143
static long do_brk(char *new_brk)
144
{
145
    char *brk_page;
146
    long mapped_addr;
147
    int        new_alloc_size;
148

    
149
    if (!new_brk)
150
        return (long)target_brk;
151
    if (new_brk < target_original_brk)
152
        return -ENOMEM;
153
    
154
    brk_page = (char *)(((unsigned long)target_brk + PAGE_SIZE - 1) & PAGE_MASK);
155

    
156
    /* If the new brk is less than this, set it and we're done... */
157
    if (new_brk < brk_page) {
158
        target_brk = new_brk;
159
            return (long)target_brk;
160
    }
161

    
162
    /* We need to allocate more memory after the brk... */
163
    new_alloc_size = ((new_brk - brk_page + 1)+(PAGE_SIZE-1)) & PAGE_MASK;
164
    mapped_addr = get_errno((long)mmap((caddr_t)brk_page, new_alloc_size, 
165
                                       PROT_READ|PROT_WRITE,
166
                                       MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
167
    
168
    if (is_error(mapped_addr)) {
169
        return mapped_addr;
170
    } else {
171
        target_brk = new_brk;
172
            return (long)target_brk;
173
    }
174
}
175

    
176
static inline fd_set *target_to_host_fds(fd_set *fds, 
177
                                         target_long *target_fds, int n)
178
{
179
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
180
    return (fd_set *)target_fds;
181
#else
182
    int i, b;
183
    if (target_fds) {
184
        FD_ZERO(fds);
185
        for(i = 0;i < n; i++) {
186
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
187
                 (i & (TARGET_LONG_BITS - 1))) & 1;
188
            if (b)
189
                FD_SET(i, fds);
190
        }
191
        return fds;
192
    } else {
193
        return NULL;
194
    }
195
#endif
196
}
197

    
198
static inline void host_to_target_fds(target_long *target_fds, 
199
                                      fd_set *fds, int n)
200
{
201
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
202
    /* nothing to do */
203
#else
204
    int i, nw, j, k;
205
    target_long v;
206

    
207
    if (target_fds) {
208
        nw = n / TARGET_LONG_BITS;
209
        k = 0;
210
        for(i = 0;i < nw; i++) {
211
            v = 0;
212
            for(j = 0; j < TARGET_LONG_BITS; j++) {
213
                v |= ((FD_ISSET(k, fds) != 0) << j);
214
                k++;
215
            }
216
            target_fds[i] = tswapl(v);
217
        }
218
    }
219
#endif
220
}
221

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

    
229
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
230
                                          const struct timeval *tv)
231
{
232
    target_tv->tv_sec = tswapl(tv->tv_sec);
233
    target_tv->tv_usec = tswapl(tv->tv_usec);
234
}
235

    
236

    
237
static long do_select(long n, 
238
                      target_long *target_rfds, target_long *target_wfds, 
239
                      target_long *target_efds, struct target_timeval *target_tv)
240
{
241
    fd_set rfds, wfds, efds;
242
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
243
    struct timeval tv, *tv_ptr;
244
    long ret;
245

    
246
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
247
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
248
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
249
            
250
    if (target_tv) {
251
        target_to_host_timeval(&tv, target_tv);
252
        tv_ptr = &tv;
253
    } else {
254
        tv_ptr = NULL;
255
    }
256
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
257
    if (!is_error(ret)) {
258
        host_to_target_fds(target_rfds, rfds_ptr, n);
259
        host_to_target_fds(target_wfds, wfds_ptr, n);
260
        host_to_target_fds(target_efds, efds_ptr, n);
261

    
262
        if (target_tv) {
263
            host_to_target_timeval(target_tv, &tv);
264
        }
265
    }
266
    return ret;
267
}
268

    
269
static inline void target_to_host_sockaddr(struct sockaddr *addr,
270
                                           struct target_sockaddr *target_addr,
271
                                           socklen_t len)
272
{
273
    memcpy(addr, target_addr, len);
274
    addr->sa_family = tswap16(target_addr->sa_family);
275
}
276

    
277
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
278
                                           struct sockaddr *addr,
279
                                           socklen_t len)
280
{
281
    memcpy(target_addr, addr, len);
282
    target_addr->sa_family = tswap16(addr->sa_family);
283
}
284

    
285
static inline void target_to_host_cmsg(struct msghdr *msgh,
286
                                       struct target_msghdr *target_msgh)
287
{
288
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
289
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
290
    socklen_t space = 0;
291

    
292
    while (cmsg && target_cmsg) {
293
        void *data = CMSG_DATA(cmsg);
294
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
295

    
296
        int len = tswapl(target_cmsg->cmsg_len) 
297
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
298

    
299
        space += CMSG_SPACE(len);
300
        if (space > msgh->msg_controllen) {
301
            space -= CMSG_SPACE(len);
302
            gemu_log("Host cmsg overflow");
303
            break;
304
        }
305

    
306
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
307
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
308
        cmsg->cmsg_len = CMSG_LEN(len);
309

    
310
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
311
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
312
            memcpy(data, target_data, len);
313
        } else {
314
            int *fd = (int *)data;
315
            int *target_fd = (int *)target_data;
316
            int i, numfds = len / sizeof(int);
317

    
318
            for (i = 0; i < numfds; i++)
319
                fd[i] = tswap32(target_fd[i]);
320
        }
321

    
322
        cmsg = CMSG_NXTHDR(msgh, cmsg);
323
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
324
    }
325

    
326
    msgh->msg_controllen = space;
327
}
328

    
329
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
330
                                       struct msghdr *msgh)
331
{
332
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
333
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
334
    socklen_t space = 0;
335

    
336
    while (cmsg && target_cmsg) {
337
        void *data = CMSG_DATA(cmsg);
338
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
339

    
340
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
341

    
342
        space += TARGET_CMSG_SPACE(len);
343
        if (space > tswapl(target_msgh->msg_controllen)) {
344
            space -= TARGET_CMSG_SPACE(len);
345
            gemu_log("Target cmsg overflow");
346
            break;
347
        }
348

    
349
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
350
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
351
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
352

    
353
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
354
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
355
            memcpy(target_data, data, len);
356
        } else {
357
            int *fd = (int *)data;
358
            int *target_fd = (int *)target_data;
359
            int i, numfds = len / sizeof(int);
360

    
361
            for (i = 0; i < numfds; i++)
362
                target_fd[i] = tswap32(fd[i]);
363
        }
364

    
365
        cmsg = CMSG_NXTHDR(msgh, cmsg);
366
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
367
    }
368

    
369
    msgh->msg_controllen = tswapl(space);
370
}
371

    
372
static long do_setsockopt(int sockfd, int level, int optname, 
373
                          void *optval, socklen_t optlen)
374
{
375
    if (level == SOL_TCP) {
376
        /* TCP options all take an 'int' value.  */
377
        int val;
378

    
379
        if (optlen < sizeof(uint32_t))
380
            return -EINVAL;
381

    
382
        val = tswap32(*(uint32_t *)optval);
383
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
384
    }
385

    
386
    else if (level != SOL_SOCKET) {
387
        gemu_log("Unsupported setsockopt level: %d\n", level);
388
        return -ENOSYS;
389
    }
390

    
391
    switch (optname) {
392
    /* Options with 'int' argument.  */
393
    case SO_DEBUG:
394
    case SO_REUSEADDR:
395
    case SO_TYPE:
396
    case SO_ERROR:
397
    case SO_DONTROUTE:
398
    case SO_BROADCAST:
399
    case SO_SNDBUF:
400
    case SO_RCVBUF:
401
    case SO_KEEPALIVE:
402
    case SO_OOBINLINE:
403
    case SO_NO_CHECK:
404
    case SO_PRIORITY:
405
    case SO_BSDCOMPAT:
406
    case SO_PASSCRED:
407
    case SO_TIMESTAMP:
408
    case SO_RCVLOWAT:
409
    case SO_RCVTIMEO:
410
    case SO_SNDTIMEO:
411
    {
412
        int val;
413
        if (optlen < sizeof(uint32_t))
414
            return -EINVAL;
415
        val = tswap32(*(uint32_t *)optval);
416
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
417
    }
418

    
419
    default:
420
        gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
421
        return -ENOSYS;
422
    }
423
}
424

    
425
static long do_getsockopt(int sockfd, int level, int optname, 
426
                          void *optval, socklen_t *optlen)
427
{
428
    gemu_log("getsockopt not yet supported\n");
429
    return -ENOSYS;
430
}
431

    
432
static long do_socketcall(int num, int32_t *vptr)
433
{
434
    long ret;
435

    
436
    switch(num) {
437
    case SOCKOP_socket:
438
        {
439
            int domain = tswap32(vptr[0]);
440
            int type = tswap32(vptr[1]);
441
            int protocol = tswap32(vptr[2]);
442

    
443
            ret = get_errno(socket(domain, type, protocol));
444
        }
445
        break;
446
    case SOCKOP_bind:
447
        {
448
            int sockfd = tswap32(vptr[0]);
449
            void *target_addr = (void *)tswap32(vptr[1]);
450
            socklen_t addrlen = tswap32(vptr[2]);
451
            void *addr = alloca(addrlen);
452

    
453
            target_to_host_sockaddr(addr, target_addr, addrlen);
454
            ret = get_errno(bind(sockfd, addr, addrlen));
455
        }
456
        break;
457
    case SOCKOP_connect:
458
        {
459
            int sockfd = tswap32(vptr[0]);
460
            void *target_addr = (void *)tswap32(vptr[1]);
461
            socklen_t addrlen = tswap32(vptr[2]);
462
            void *addr = alloca(addrlen);
463

    
464
            target_to_host_sockaddr(addr, target_addr, addrlen);
465
            ret = get_errno(connect(sockfd, addr, addrlen));
466
        }
467
        break;
468
    case SOCKOP_listen:
469
        {
470
            int sockfd = tswap32(vptr[0]);
471
            int backlog = tswap32(vptr[1]);
472

    
473
            ret = get_errno(listen(sockfd, backlog));
474
        }
475
        break;
476
    case SOCKOP_accept:
477
        {
478
            int sockfd = tswap32(vptr[0]);
479
            void *target_addr = (void *)tswap32(vptr[1]);
480
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
481
            socklen_t addrlen = tswap32(*target_addrlen);
482
            void *addr = alloca(addrlen);
483

    
484
            ret = get_errno(accept(sockfd, addr, &addrlen));
485
            if (!is_error(ret)) {
486
                host_to_target_sockaddr(target_addr, addr, addrlen);
487
                *target_addrlen = tswap32(addrlen);
488
            }
489
        }
490
        break;
491
    case SOCKOP_getsockname:
492
        {
493
            int sockfd = tswap32(vptr[0]);
494
            void *target_addr = (void *)tswap32(vptr[1]);
495
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
496
            socklen_t addrlen = tswap32(*target_addrlen);
497
            void *addr = alloca(addrlen);
498

    
499
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
500
            if (!is_error(ret)) {
501
                host_to_target_sockaddr(target_addr, addr, addrlen);
502
                *target_addrlen = tswap32(addrlen);
503
            }
504
        }
505
        break;
506
    case SOCKOP_getpeername:
507
        {
508
            int sockfd = tswap32(vptr[0]);
509
            void *target_addr = (void *)tswap32(vptr[1]);
510
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
511
            socklen_t addrlen = tswap32(*target_addrlen);
512
            void *addr = alloca(addrlen);
513

    
514
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
515
            if (!is_error(ret)) {
516
                host_to_target_sockaddr(target_addr, addr, addrlen);
517
                *target_addrlen = tswap32(addrlen);
518
            }
519
        }
520
        break;
521
    case SOCKOP_socketpair:
522
        {
523
            int domain = tswap32(vptr[0]);
524
            int type = tswap32(vptr[1]);
525
            int protocol = tswap32(vptr[2]);
526
            int32_t *target_tab = (void *)tswap32(vptr[3]);
527
            int tab[2];
528

    
529
            ret = get_errno(socketpair(domain, type, protocol, tab));
530
            if (!is_error(ret)) {
531
                target_tab[0] = tswap32(tab[0]);
532
                target_tab[1] = tswap32(tab[1]);
533
            }
534
        }
535
        break;
536
    case SOCKOP_send:
537
        {
538
            int sockfd = tswap32(vptr[0]);
539
            void *msg = (void *)tswap32(vptr[1]);
540
            size_t len = tswap32(vptr[2]);
541
            int flags = tswap32(vptr[3]);
542

    
543
            ret = get_errno(send(sockfd, msg, len, flags));
544
        }
545
        break;
546
    case SOCKOP_recv:
547
        {
548
            int sockfd = tswap32(vptr[0]);
549
            void *msg = (void *)tswap32(vptr[1]);
550
            size_t len = tswap32(vptr[2]);
551
            int flags = tswap32(vptr[3]);
552

    
553
            ret = get_errno(recv(sockfd, msg, len, flags));
554
        }
555
        break;
556
    case SOCKOP_sendto:
557
        {
558
            int sockfd = tswap32(vptr[0]);
559
            void *msg = (void *)tswap32(vptr[1]);
560
            size_t len = tswap32(vptr[2]);
561
            int flags = tswap32(vptr[3]);
562
            void *target_addr = (void *)tswap32(vptr[4]);
563
            socklen_t addrlen = tswap32(vptr[5]);
564
            void *addr = alloca(addrlen);
565

    
566
            target_to_host_sockaddr(addr, target_addr, addrlen);
567
            ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
568
        }
569
        break;
570
    case SOCKOP_recvfrom:
571
        {
572
            int sockfd = tswap32(vptr[0]);
573
            void *msg = (void *)tswap32(vptr[1]);
574
            size_t len = tswap32(vptr[2]);
575
            int flags = tswap32(vptr[3]);
576
            void *target_addr = (void *)tswap32(vptr[4]);
577
            uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
578
            socklen_t addrlen = tswap32(*target_addrlen);
579
            void *addr = alloca(addrlen);
580

    
581
            ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
582
            if (!is_error(ret)) {
583
                host_to_target_sockaddr(target_addr, addr, addrlen);
584
                *target_addrlen = tswap32(addrlen);
585
            }
586
        }
587
        break;
588
    case SOCKOP_shutdown:
589
        {
590
            int sockfd = tswap32(vptr[0]);
591
            int how = tswap32(vptr[1]);
592

    
593
            ret = get_errno(shutdown(sockfd, how));
594
        }
595
        break;
596
    case SOCKOP_sendmsg:
597
    case SOCKOP_recvmsg:
598
        {
599
            int fd;
600
            struct target_msghdr *msgp;
601
            struct msghdr msg;
602
            int flags, count, i;
603
            struct iovec *vec;
604
            struct target_iovec *target_vec;
605

    
606
            msgp = (void *)tswap32(vptr[1]);
607
            msg.msg_name = (void *)tswapl(msgp->msg_name);
608
            msg.msg_namelen = tswapl(msgp->msg_namelen);
609
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
610
            msg.msg_control = alloca(msg.msg_controllen);
611
            msg.msg_flags = tswap32(msgp->msg_flags);
612

    
613
            count = tswapl(msgp->msg_iovlen);
614
            vec = alloca(count * sizeof(struct iovec));
615
            target_vec = (void *)tswapl(msgp->msg_iov);
616
            for(i = 0;i < count; i++) {
617
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
618
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
619
            }
620
            msg.msg_iovlen = count;
621
            msg.msg_iov = vec;
622

    
623
            fd = tswap32(vptr[0]);
624
            flags = tswap32(vptr[2]);
625
            if (num == SOCKOP_sendmsg) {
626
                target_to_host_cmsg(&msg, msgp);
627
                ret = get_errno(sendmsg(fd, &msg, flags));
628
            } else {
629
                ret = get_errno(recvmsg(fd, &msg, flags));
630
                if (!is_error(ret))
631
                  host_to_target_cmsg(msgp, &msg);
632
            }
633
        }
634
        break;
635
    case SOCKOP_setsockopt:
636
        {
637
            int sockfd = tswap32(vptr[0]);
638
            int level = tswap32(vptr[1]);
639
            int optname = tswap32(vptr[2]);
640
            void *optval = (void *)tswap32(vptr[3]);
641
            socklen_t optlen = tswap32(vptr[4]);
642

    
643
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
644
        }
645
        break;
646
    case SOCKOP_getsockopt:
647
        {
648
            int sockfd = tswap32(vptr[0]);
649
            int level = tswap32(vptr[1]);
650
            int optname = tswap32(vptr[2]);
651
            void *optval = (void *)tswap32(vptr[3]);
652
            uint32_t *target_len = (void *)tswap32(vptr[4]);
653
            socklen_t optlen = tswap32(*target_len);
654

    
655
            ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
656
            if (!is_error(ret))
657
                *target_len = tswap32(optlen);
658
        }
659
        break;
660
    default:
661
        gemu_log("Unsupported socketcall: %d\n", num);
662
        ret = -ENOSYS;
663
        break;
664
    }
665
    return ret;
666
}
667

    
668
/* kernel structure types definitions */
669
#define IFNAMSIZ        16
670

    
671
#define STRUCT(name, list...) STRUCT_ ## name,
672
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
673
enum {
674
#include "syscall_types.h"
675
};
676
#undef STRUCT
677
#undef STRUCT_SPECIAL
678

    
679
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
680
#define STRUCT_SPECIAL(name)
681
#include "syscall_types.h"
682
#undef STRUCT
683
#undef STRUCT_SPECIAL
684

    
685
typedef struct IOCTLEntry {
686
    int target_cmd;
687
    int host_cmd;
688
    const char *name;
689
    int access;
690
    const argtype arg_type[5];
691
} IOCTLEntry;
692

    
693
#define IOC_R 0x0001
694
#define IOC_W 0x0002
695
#define IOC_RW (IOC_R | IOC_W)
696

    
697
#define MAX_STRUCT_SIZE 4096
698

    
699
const IOCTLEntry ioctl_entries[] = {
700
#define IOCTL(cmd, access, types...) \
701
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
702
#include "ioctls.h"
703
    { 0, 0, },
704
};
705

    
706
static long do_ioctl(long fd, long cmd, long arg)
707
{
708
    const IOCTLEntry *ie;
709
    const argtype *arg_type;
710
    long ret;
711
    uint8_t buf_temp[MAX_STRUCT_SIZE];
712

    
713
    ie = ioctl_entries;
714
    for(;;) {
715
        if (ie->target_cmd == 0) {
716
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
717
            return -ENOSYS;
718
        }
719
        if (ie->target_cmd == cmd)
720
            break;
721
        ie++;
722
    }
723
    arg_type = ie->arg_type;
724
#if defined(DEBUG)
725
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
726
#endif
727
    switch(arg_type[0]) {
728
    case TYPE_NULL:
729
        /* no argument */
730
        ret = get_errno(ioctl(fd, ie->host_cmd));
731
        break;
732
    case TYPE_PTRVOID:
733
    case TYPE_INT:
734
        /* int argment */
735
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
736
        break;
737
    case TYPE_PTR:
738
        arg_type++;
739
        switch(ie->access) {
740
        case IOC_R:
741
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
742
            if (!is_error(ret)) {
743
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
744
            }
745
            break;
746
        case IOC_W:
747
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
748
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
749
            break;
750
        default:
751
        case IOC_RW:
752
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
753
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
754
            if (!is_error(ret)) {
755
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
756
            }
757
            break;
758
        }
759
        break;
760
    default:
761
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
762
        ret = -ENOSYS;
763
        break;
764
    }
765
    return ret;
766
}
767

    
768
bitmask_transtbl iflag_tbl[] = {
769
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
770
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
771
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
772
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
773
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
774
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
775
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
776
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
777
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
778
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
779
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
780
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
781
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
782
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
783
        { 0, 0, 0, 0 }
784
};
785

    
786
bitmask_transtbl oflag_tbl[] = {
787
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
788
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
789
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
790
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
791
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
792
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
793
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
794
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
795
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
796
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
797
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
798
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
799
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
800
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
801
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
802
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
803
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
804
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
805
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
806
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
807
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
808
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
809
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
810
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
811
        { 0, 0, 0, 0 }
812
};
813

    
814
bitmask_transtbl cflag_tbl[] = {
815
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
816
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
817
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
818
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
819
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
820
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
821
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
822
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
823
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
824
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
825
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
826
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
827
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
828
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
829
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
830
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
831
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
832
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
833
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
834
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
835
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
836
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
837
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
838
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
839
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
840
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
841
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
842
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
843
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
844
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
845
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
846
        { 0, 0, 0, 0 }
847
};
848

    
849
bitmask_transtbl lflag_tbl[] = {
850
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
851
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
852
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
853
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
854
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
855
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
856
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
857
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
858
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
859
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
860
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
861
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
862
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
863
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
864
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
865
        { 0, 0, 0, 0 }
866
};
867

    
868
static void target_to_host_termios (void *dst, const void *src)
869
{
870
    struct host_termios *host = dst;
871
    const struct target_termios *target = src;
872
    
873
    host->c_iflag = 
874
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
875
    host->c_oflag = 
876
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
877
    host->c_cflag = 
878
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
879
    host->c_lflag = 
880
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
881
    host->c_line = target->c_line;
882
    
883
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
884
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
885
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
886
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
887
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
888
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
889
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
890
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
891
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
892
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
893
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
894
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
895
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
896
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
897
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
898
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
899
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
900
}
901
  
902
static void host_to_target_termios (void *dst, const void *src)
903
{
904
    struct target_termios *target = dst;
905
    const struct host_termios *host = src;
906

    
907
    target->c_iflag = 
908
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
909
    target->c_oflag = 
910
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
911
    target->c_cflag = 
912
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
913
    target->c_lflag = 
914
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
915
    target->c_line = host->c_line;
916
  
917
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
918
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
919
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
920
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
921
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
922
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
923
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
924
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
925
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
926
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
927
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
928
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
929
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
930
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
931
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
932
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
933
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
934
}
935

    
936
StructEntry struct_termios_def = {
937
    .convert = { host_to_target_termios, target_to_host_termios },
938
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
939
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
940
};
941

    
942
#ifdef TARGET_I386
943

    
944
/* NOTE: there is really one LDT for all the threads */
945
uint8_t *ldt_table;
946

    
947
static int read_ldt(void *ptr, unsigned long bytecount)
948
{
949
    int size;
950

    
951
    if (!ldt_table)
952
        return 0;
953
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
954
    if (size > bytecount)
955
        size = bytecount;
956
    memcpy(ptr, ldt_table, size);
957
    return size;
958
}
959

    
960
/* XXX: add locking support */
961
static int write_ldt(CPUX86State *env, 
962
                     void *ptr, unsigned long bytecount, int oldmode)
963
{
964
    struct target_modify_ldt_ldt_s ldt_info;
965
    int seg_32bit, contents, read_exec_only, limit_in_pages;
966
    int seg_not_present, useable;
967
    uint32_t *lp, entry_1, entry_2;
968

    
969
    if (bytecount != sizeof(ldt_info))
970
        return -EINVAL;
971
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
972
    tswap32s(&ldt_info.entry_number);
973
    tswapls((long *)&ldt_info.base_addr);
974
    tswap32s(&ldt_info.limit);
975
    tswap32s(&ldt_info.flags);
976
    
977
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
978
        return -EINVAL;
979
    seg_32bit = ldt_info.flags & 1;
980
    contents = (ldt_info.flags >> 1) & 3;
981
    read_exec_only = (ldt_info.flags >> 3) & 1;
982
    limit_in_pages = (ldt_info.flags >> 4) & 1;
983
    seg_not_present = (ldt_info.flags >> 5) & 1;
984
    useable = (ldt_info.flags >> 6) & 1;
985

    
986
    if (contents == 3) {
987
        if (oldmode)
988
            return -EINVAL;
989
        if (seg_not_present == 0)
990
            return -EINVAL;
991
    }
992
    /* allocate the LDT */
993
    if (!ldt_table) {
994
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
995
        if (!ldt_table)
996
            return -ENOMEM;
997
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
998
        env->ldt.base = ldt_table;
999
        env->ldt.limit = 0xffff;
1000
    }
1001

    
1002
    /* NOTE: same code as Linux kernel */
1003
    /* Allow LDTs to be cleared by the user. */
1004
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1005
        if (oldmode ||
1006
            (contents == 0                &&
1007
             read_exec_only == 1        &&
1008
             seg_32bit == 0                &&
1009
             limit_in_pages == 0        &&
1010
             seg_not_present == 1        &&
1011
             useable == 0 )) {
1012
            entry_1 = 0;
1013
            entry_2 = 0;
1014
            goto install;
1015
        }
1016
    }
1017
    
1018
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1019
        (ldt_info.limit & 0x0ffff);
1020
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1021
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1022
        (ldt_info.limit & 0xf0000) |
1023
        ((read_exec_only ^ 1) << 9) |
1024
        (contents << 10) |
1025
        ((seg_not_present ^ 1) << 15) |
1026
        (seg_32bit << 22) |
1027
        (limit_in_pages << 23) |
1028
        0x7000;
1029
    if (!oldmode)
1030
        entry_2 |= (useable << 20);
1031
    
1032
    /* Install the new entry ...  */
1033
install:
1034
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1035
    lp[0] = tswap32(entry_1);
1036
    lp[1] = tswap32(entry_2);
1037
    return 0;
1038
}
1039

    
1040
/* specific and weird i386 syscalls */
1041
int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1042
{
1043
    int ret = -ENOSYS;
1044
    
1045
    switch (func) {
1046
    case 0:
1047
        ret = read_ldt(ptr, bytecount);
1048
        break;
1049
    case 1:
1050
        ret = write_ldt(env, ptr, bytecount, 1);
1051
        break;
1052
    case 0x11:
1053
        ret = write_ldt(env, ptr, bytecount, 0);
1054
        break;
1055
    }
1056
    return ret;
1057
}
1058

    
1059
/* vm86 emulation */
1060

    
1061
#define SAFE_MASK  (0xDD5)
1062

    
1063
int do_vm86(CPUX86State *env, long subfunction, 
1064
            struct target_vm86plus_struct * target_v86)
1065
{
1066
    TaskState *ts = env->opaque;
1067
    int ret;
1068
    
1069
    switch (subfunction) {
1070
    case TARGET_VM86_REQUEST_IRQ:
1071
    case TARGET_VM86_FREE_IRQ:
1072
    case TARGET_VM86_GET_IRQ_BITS:
1073
    case TARGET_VM86_GET_AND_RESET_IRQ:
1074
        gemu_log("qemu: unsupported vm86 subfunction (%ld)\n", subfunction);
1075
        ret = -EINVAL;
1076
        goto out;
1077
    case TARGET_VM86_PLUS_INSTALL_CHECK:
1078
        /* NOTE: on old vm86 stuff this will return the error
1079
           from verify_area(), because the subfunction is
1080
           interpreted as (invalid) address to vm86_struct.
1081
           So the installation check works.
1082
            */
1083
        ret = 0;
1084
        goto out;
1085
    }
1086

    
1087
    ts->target_v86 = target_v86;
1088
    /* save current CPU regs */
1089
    ts->vm86_saved_regs.eax = 0; /* default vm86 syscall return code */
1090
    ts->vm86_saved_regs.ebx = env->regs[R_EBX];
1091
    ts->vm86_saved_regs.ecx = env->regs[R_ECX];
1092
    ts->vm86_saved_regs.edx = env->regs[R_EDX];
1093
    ts->vm86_saved_regs.esi = env->regs[R_ESI];
1094
    ts->vm86_saved_regs.edi = env->regs[R_EDI];
1095
    ts->vm86_saved_regs.ebp = env->regs[R_EBP];
1096
    ts->vm86_saved_regs.esp = env->regs[R_ESP];
1097
    ts->vm86_saved_regs.eflags = env->eflags;
1098
    ts->vm86_saved_regs.eip  = env->eip;
1099
    ts->vm86_saved_regs.cs = env->segs[R_CS];
1100
    ts->vm86_saved_regs.ss = env->segs[R_SS];
1101
    ts->vm86_saved_regs.ds = env->segs[R_DS];
1102
    ts->vm86_saved_regs.es = env->segs[R_ES];
1103
    ts->vm86_saved_regs.fs = env->segs[R_FS];
1104
    ts->vm86_saved_regs.gs = env->segs[R_GS];
1105

    
1106
    /* build vm86 CPU state */
1107
    env->eflags = (env->eflags & ~SAFE_MASK) | 
1108
        (tswap32(target_v86->regs.eflags) & SAFE_MASK) | VM_MASK;
1109

    
1110
    env->regs[R_EBX] = tswap32(target_v86->regs.ebx);
1111
    env->regs[R_ECX] = tswap32(target_v86->regs.ecx);
1112
    env->regs[R_EDX] = tswap32(target_v86->regs.edx);
1113
    env->regs[R_ESI] = tswap32(target_v86->regs.esi);
1114
    env->regs[R_EDI] = tswap32(target_v86->regs.edi);
1115
    env->regs[R_EBP] = tswap32(target_v86->regs.ebp);
1116
    env->regs[R_ESP] = tswap32(target_v86->regs.esp);
1117
    env->eip = tswap32(target_v86->regs.eip);
1118
    cpu_x86_load_seg(env, R_CS, tswap16(target_v86->regs.cs));
1119
    cpu_x86_load_seg(env, R_SS, tswap16(target_v86->regs.ss));
1120
    cpu_x86_load_seg(env, R_DS, tswap16(target_v86->regs.ds));
1121
    cpu_x86_load_seg(env, R_ES, tswap16(target_v86->regs.es));
1122
    cpu_x86_load_seg(env, R_FS, tswap16(target_v86->regs.fs));
1123
    cpu_x86_load_seg(env, R_GS, tswap16(target_v86->regs.gs));
1124
    ret = tswap32(target_v86->regs.eax); /* eax will be restored at
1125
                                            the end of the syscall */
1126
    /* now the virtual CPU is ready for vm86 execution ! */
1127
 out:
1128
    return ret;
1129
}
1130

    
1131
/* this stack is the equivalent of the kernel stack associated with a
1132
   thread/process */
1133
#define NEW_STACK_SIZE 8192
1134

    
1135
static int clone_func(void *arg)
1136
{
1137
    CPUX86State *env = arg;
1138
    cpu_loop(env);
1139
    /* never exits */
1140
    return 0;
1141
}
1142

    
1143
int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
1144
{
1145
    int ret;
1146
    TaskState *ts;
1147
    uint8_t *new_stack;
1148
    CPUX86State *new_env;
1149
    
1150
    if (flags & CLONE_VM) {
1151
        if (!newsp)
1152
            newsp = env->regs[R_ESP];
1153
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1154
        memset(ts, 0, sizeof(TaskState));
1155
        new_stack = ts->stack;
1156
        ts->used = 1;
1157
        /* add in task state list */
1158
        ts->next = first_task_state;
1159
        first_task_state = ts;
1160
        /* we create a new CPU instance. */
1161
        new_env = cpu_x86_init();
1162
        memcpy(new_env, env, sizeof(CPUX86State));
1163
        new_env->regs[R_ESP] = newsp;
1164
        new_env->regs[R_EAX] = 0;
1165
        new_env->opaque = ts;
1166
#ifdef __ia64__
1167
        ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1168
#else
1169
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1170
#endif
1171
    } else {
1172
        /* if no CLONE_VM, we consider it is a fork */
1173
        if ((flags & ~CSIGNAL) != 0)
1174
            return -EINVAL;
1175
        ret = fork();
1176
    }
1177
    return ret;
1178
}
1179

    
1180
#endif
1181

    
1182
#define high2lowuid(x) (x)
1183
#define high2lowgid(x) (x)
1184
#define low2highuid(x) (x)
1185
#define low2highgid(x) (x)
1186

    
1187
void syscall_init(void)
1188
{
1189
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1190
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1191
#include "syscall_types.h"
1192
#undef STRUCT
1193
#undef STRUCT_SPECIAL
1194
}
1195
                                 
1196
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1197
                long arg4, long arg5, long arg6)
1198
{
1199
    long ret;
1200
    struct stat st;
1201
    struct kernel_statfs *stfs;
1202
    
1203
#ifdef DEBUG
1204
    gemu_log("syscall %d\n", num);
1205
#endif
1206
    switch(num) {
1207
    case TARGET_NR_exit:
1208
#ifdef HAVE_GPROF
1209
        _mcleanup();
1210
#endif
1211
        /* XXX: should free thread stack and CPU env */
1212
        _exit(arg1);
1213
        ret = 0; /* avoid warning */
1214
        break;
1215
    case TARGET_NR_read:
1216
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1217
        break;
1218
    case TARGET_NR_write:
1219
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1220
        break;
1221
    case TARGET_NR_open:
1222
        ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1223
        break;
1224
    case TARGET_NR_close:
1225
        ret = get_errno(close(arg1));
1226
        break;
1227
    case TARGET_NR_brk:
1228
        ret = do_brk((char *)arg1);
1229
        break;
1230
    case TARGET_NR_fork:
1231
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1232
        break;
1233
    case TARGET_NR_waitpid:
1234
        {
1235
            int *status = (int *)arg2;
1236
            ret = get_errno(waitpid(arg1, status, arg3));
1237
            if (!is_error(ret) && status)
1238
                tswapls((long *)&status);
1239
        }
1240
        break;
1241
    case TARGET_NR_creat:
1242
        ret = get_errno(creat((const char *)arg1, arg2));
1243
        break;
1244
    case TARGET_NR_link:
1245
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1246
        break;
1247
    case TARGET_NR_unlink:
1248
        ret = get_errno(unlink((const char *)arg1));
1249
        break;
1250
    case TARGET_NR_execve:
1251
        {
1252
            char **argp, **envp;
1253
            int argc, envc;
1254
            uint32_t *p;
1255
            char **q;
1256

    
1257
            argc = 0;
1258
            for (p = (void *)arg2; *p; p++)
1259
                argc++;
1260
            envc = 0;
1261
            for (p = (void *)arg3; *p; p++)
1262
                envc++;
1263

    
1264
            argp = alloca((argc + 1) * sizeof(void *));
1265
            envp = alloca((envc + 1) * sizeof(void *));
1266

    
1267
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1268
                *q = (void *)tswap32(*p);
1269
            *q = NULL;
1270

    
1271
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1272
                *q = (void *)tswap32(*p);
1273
            *q = NULL;
1274

    
1275
            ret = get_errno(execve((const char *)arg1, argp, envp));
1276
        }
1277
        break;
1278
    case TARGET_NR_chdir:
1279
        ret = get_errno(chdir((const char *)arg1));
1280
        break;
1281
    case TARGET_NR_time:
1282
        {
1283
            int *time_ptr = (int *)arg1;
1284
            ret = get_errno(time((time_t *)time_ptr));
1285
            if (!is_error(ret) && time_ptr)
1286
                tswap32s(time_ptr);
1287
        }
1288
        break;
1289
    case TARGET_NR_mknod:
1290
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1291
        break;
1292
    case TARGET_NR_chmod:
1293
        ret = get_errno(chmod((const char *)arg1, arg2));
1294
        break;
1295
    case TARGET_NR_lchown:
1296
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1297
        break;
1298
    case TARGET_NR_break:
1299
        goto unimplemented;
1300
    case TARGET_NR_oldstat:
1301
        goto unimplemented;
1302
    case TARGET_NR_lseek:
1303
        ret = get_errno(lseek(arg1, arg2, arg3));
1304
        break;
1305
    case TARGET_NR_getpid:
1306
        ret = get_errno(getpid());
1307
        break;
1308
    case TARGET_NR_mount:
1309
        /* need to look at the data field */
1310
        goto unimplemented;
1311
    case TARGET_NR_umount:
1312
        ret = get_errno(umount((const char *)arg1));
1313
        break;
1314
    case TARGET_NR_setuid:
1315
        ret = get_errno(setuid(low2highuid(arg1)));
1316
        break;
1317
    case TARGET_NR_getuid:
1318
        ret = get_errno(getuid());
1319
        break;
1320
    case TARGET_NR_stime:
1321
        {
1322
            int *time_ptr = (int *)arg1;
1323
            if (time_ptr)
1324
                tswap32s(time_ptr);
1325
            ret = get_errno(stime((time_t *)time_ptr));
1326
        }
1327
        break;
1328
    case TARGET_NR_ptrace:
1329
        goto unimplemented;
1330
    case TARGET_NR_alarm:
1331
        ret = alarm(arg1);
1332
        break;
1333
    case TARGET_NR_oldfstat:
1334
        goto unimplemented;
1335
    case TARGET_NR_pause:
1336
        ret = get_errno(pause());
1337
        break;
1338
    case TARGET_NR_utime:
1339
        goto unimplemented;
1340
    case TARGET_NR_stty:
1341
        goto unimplemented;
1342
    case TARGET_NR_gtty:
1343
        goto unimplemented;
1344
    case TARGET_NR_access:
1345
        ret = get_errno(access((const char *)arg1, arg2));
1346
        break;
1347
    case TARGET_NR_nice:
1348
        ret = get_errno(nice(arg1));
1349
        break;
1350
    case TARGET_NR_ftime:
1351
        goto unimplemented;
1352
    case TARGET_NR_sync:
1353
        sync();
1354
        ret = 0;
1355
        break;
1356
    case TARGET_NR_kill:
1357
        ret = get_errno(kill(arg1, arg2));
1358
        break;
1359
    case TARGET_NR_rename:
1360
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1361
        break;
1362
    case TARGET_NR_mkdir:
1363
        ret = get_errno(mkdir((const char *)arg1, arg2));
1364
        break;
1365
    case TARGET_NR_rmdir:
1366
        ret = get_errno(rmdir((const char *)arg1));
1367
        break;
1368
    case TARGET_NR_dup:
1369
        ret = get_errno(dup(arg1));
1370
        break;
1371
    case TARGET_NR_pipe:
1372
        {
1373
            int *pipe_ptr = (int *)arg1;
1374
            ret = get_errno(pipe(pipe_ptr));
1375
            if (!is_error(ret)) {
1376
                tswap32s(&pipe_ptr[0]);
1377
                tswap32s(&pipe_ptr[1]);
1378
            }
1379
        }
1380
        break;
1381
    case TARGET_NR_times:
1382
        {
1383
            struct target_tms *tmsp = (void *)arg1;
1384
            struct tms tms;
1385
            ret = get_errno(times(&tms));
1386
            if (tmsp) {
1387
                tmsp->tms_utime = tswapl(tms.tms_utime);
1388
                tmsp->tms_stime = tswapl(tms.tms_stime);
1389
                tmsp->tms_cutime = tswapl(tms.tms_cutime);
1390
                tmsp->tms_cstime = tswapl(tms.tms_cstime);
1391
            }
1392
        }
1393
        break;
1394
    case TARGET_NR_prof:
1395
        goto unimplemented;
1396
    case TARGET_NR_setgid:
1397
        ret = get_errno(setgid(low2highgid(arg1)));
1398
        break;
1399
    case TARGET_NR_getgid:
1400
        ret = get_errno(getgid());
1401
        break;
1402
    case TARGET_NR_signal:
1403
        goto unimplemented;
1404
    case TARGET_NR_geteuid:
1405
        ret = get_errno(geteuid());
1406
        break;
1407
    case TARGET_NR_getegid:
1408
        ret = get_errno(getegid());
1409
        break;
1410
    case TARGET_NR_acct:
1411
        goto unimplemented;
1412
    case TARGET_NR_umount2:
1413
        ret = get_errno(umount2((const char *)arg1, arg2));
1414
        break;
1415
    case TARGET_NR_lock:
1416
        goto unimplemented;
1417
    case TARGET_NR_ioctl:
1418
        ret = do_ioctl(arg1, arg2, arg3);
1419
        break;
1420
    case TARGET_NR_fcntl:
1421
    {
1422
        struct flock fl;
1423
        struct target_flock *target_fl = (void *)arg3;
1424

    
1425
        switch(arg2) {
1426
        case TARGET_F_GETLK:
1427
            ret = get_errno(fcntl(arg1, arg2, &fl));
1428
            if (ret == 0) {
1429
                target_fl->l_type = tswap16(fl.l_type);
1430
                target_fl->l_whence = tswap16(fl.l_whence);
1431
                target_fl->l_start = tswapl(fl.l_start);
1432
                target_fl->l_len = tswapl(fl.l_len);
1433
                target_fl->l_pid = tswapl(fl.l_pid);
1434
            }
1435
            break;
1436

    
1437
        case TARGET_F_SETLK:
1438
        case TARGET_F_SETLKW:
1439
            fl.l_type = tswap16(target_fl->l_type);
1440
            fl.l_whence = tswap16(target_fl->l_whence);
1441
            fl.l_start = tswapl(target_fl->l_start);
1442
            fl.l_len = tswapl(target_fl->l_len);
1443
            fl.l_pid = tswapl(target_fl->l_pid);
1444
            ret = get_errno(fcntl(arg1, arg2, &fl));
1445
            break;
1446

    
1447
        case TARGET_F_GETLK64:
1448
        case TARGET_F_SETLK64:
1449
        case TARGET_F_SETLKW64:
1450
            goto unimplemented;
1451
        default:
1452
            ret = get_errno(fcntl(arg1, arg2, arg3));
1453
            break;
1454
        }
1455
        break;
1456
    }
1457
    case TARGET_NR_mpx:
1458
        goto unimplemented;
1459
    case TARGET_NR_setpgid:
1460
        ret = get_errno(setpgid(arg1, arg2));
1461
        break;
1462
    case TARGET_NR_ulimit:
1463
        goto unimplemented;
1464
    case TARGET_NR_oldolduname:
1465
        goto unimplemented;
1466
    case TARGET_NR_umask:
1467
        ret = get_errno(umask(arg1));
1468
        break;
1469
    case TARGET_NR_chroot:
1470
        ret = get_errno(chroot((const char *)arg1));
1471
        break;
1472
    case TARGET_NR_ustat:
1473
        goto unimplemented;
1474
    case TARGET_NR_dup2:
1475
        ret = get_errno(dup2(arg1, arg2));
1476
        break;
1477
    case TARGET_NR_getppid:
1478
        ret = get_errno(getppid());
1479
        break;
1480
    case TARGET_NR_getpgrp:
1481
        ret = get_errno(getpgrp());
1482
        break;
1483
    case TARGET_NR_setsid:
1484
        ret = get_errno(setsid());
1485
        break;
1486
    case TARGET_NR_sigaction:
1487
        {
1488
            struct target_old_sigaction *old_act = (void *)arg2;
1489
            struct target_old_sigaction *old_oact = (void *)arg3;
1490
            struct target_sigaction act, oact, *pact;
1491
            if (old_act) {
1492
                act._sa_handler = old_act->_sa_handler;
1493
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1494
                act.sa_flags = old_act->sa_flags;
1495
                act.sa_restorer = old_act->sa_restorer;
1496
                pact = &act;
1497
            } else {
1498
                pact = NULL;
1499
            }
1500
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1501
            if (!is_error(ret) && old_oact) {
1502
                old_oact->_sa_handler = oact._sa_handler;
1503
                old_oact->sa_mask = oact.sa_mask.sig[0];
1504
                old_oact->sa_flags = oact.sa_flags;
1505
                old_oact->sa_restorer = oact.sa_restorer;
1506
            }
1507
        }
1508
        break;
1509
    case TARGET_NR_rt_sigaction:
1510
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1511
        break;
1512
    case TARGET_NR_sgetmask:
1513
        {
1514
            sigset_t cur_set;
1515
            target_ulong target_set;
1516
            sigprocmask(0, NULL, &cur_set);
1517
            host_to_target_old_sigset(&target_set, &cur_set);
1518
            ret = target_set;
1519
        }
1520
        break;
1521
    case TARGET_NR_ssetmask:
1522
        {
1523
            sigset_t set, oset, cur_set;
1524
            target_ulong target_set = arg1;
1525
            sigprocmask(0, NULL, &cur_set);
1526
            target_to_host_old_sigset(&set, &target_set);
1527
            sigorset(&set, &set, &cur_set);
1528
            sigprocmask(SIG_SETMASK, &set, &oset);
1529
            host_to_target_old_sigset(&target_set, &oset);
1530
            ret = target_set;
1531
        }
1532
        break;
1533
    case TARGET_NR_sigprocmask:
1534
        {
1535
            int how = arg1;
1536
            sigset_t set, oldset, *set_ptr;
1537
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1538
            
1539
            if (pset) {
1540
                switch(how) {
1541
                case TARGET_SIG_BLOCK:
1542
                    how = SIG_BLOCK;
1543
                    break;
1544
                case TARGET_SIG_UNBLOCK:
1545
                    how = SIG_UNBLOCK;
1546
                    break;
1547
                case TARGET_SIG_SETMASK:
1548
                    how = SIG_SETMASK;
1549
                    break;
1550
                default:
1551
                    ret = -EINVAL;
1552
                    goto fail;
1553
                }
1554
                target_to_host_old_sigset(&set, pset);
1555
                set_ptr = &set;
1556
            } else {
1557
                how = 0;
1558
                set_ptr = NULL;
1559
            }
1560
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1561
            if (!is_error(ret) && poldset) {
1562
                host_to_target_old_sigset(poldset, &oldset);
1563
            }
1564
        }
1565
        break;
1566
    case TARGET_NR_rt_sigprocmask:
1567
        {
1568
            int how = arg1;
1569
            sigset_t set, oldset, *set_ptr;
1570
            target_sigset_t *pset = (void *)arg2;
1571
            target_sigset_t *poldset = (void *)arg3;
1572
            
1573
            if (pset) {
1574
                switch(how) {
1575
                case TARGET_SIG_BLOCK:
1576
                    how = SIG_BLOCK;
1577
                    break;
1578
                case TARGET_SIG_UNBLOCK:
1579
                    how = SIG_UNBLOCK;
1580
                    break;
1581
                case TARGET_SIG_SETMASK:
1582
                    how = SIG_SETMASK;
1583
                    break;
1584
                default:
1585
                    ret = -EINVAL;
1586
                    goto fail;
1587
                }
1588
                target_to_host_sigset(&set, pset);
1589
                set_ptr = &set;
1590
            } else {
1591
                how = 0;
1592
                set_ptr = NULL;
1593
            }
1594
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1595
            if (!is_error(ret) && poldset) {
1596
                host_to_target_sigset(poldset, &oldset);
1597
            }
1598
        }
1599
        break;
1600
    case TARGET_NR_sigpending:
1601
        {
1602
            sigset_t set;
1603
            ret = get_errno(sigpending(&set));
1604
            if (!is_error(ret)) {
1605
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1606
            }
1607
        }
1608
        break;
1609
    case TARGET_NR_rt_sigpending:
1610
        {
1611
            sigset_t set;
1612
            ret = get_errno(sigpending(&set));
1613
            if (!is_error(ret)) {
1614
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1615
            }
1616
        }
1617
        break;
1618
    case TARGET_NR_sigsuspend:
1619
        {
1620
            sigset_t set;
1621
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1622
            ret = get_errno(sigsuspend(&set));
1623
        }
1624
        break;
1625
    case TARGET_NR_rt_sigsuspend:
1626
        {
1627
            sigset_t set;
1628
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1629
            ret = get_errno(sigsuspend(&set));
1630
        }
1631
        break;
1632
    case TARGET_NR_rt_sigtimedwait:
1633
        {
1634
            target_sigset_t *target_set = (void *)arg1;
1635
            target_siginfo_t *target_uinfo = (void *)arg2;
1636
            struct target_timespec *target_uts = (void *)arg3;
1637
            sigset_t set;
1638
            struct timespec uts, *puts;
1639
            siginfo_t uinfo;
1640
            
1641
            target_to_host_sigset(&set, target_set);
1642
            if (target_uts) {
1643
                puts = &uts;
1644
                puts->tv_sec = tswapl(target_uts->tv_sec);
1645
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1646
            } else {
1647
                puts = NULL;
1648
            }
1649
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1650
            if (!is_error(ret) && target_uinfo) {
1651
                host_to_target_siginfo(target_uinfo, &uinfo);
1652
            }
1653
        }
1654
        break;
1655
    case TARGET_NR_rt_sigqueueinfo:
1656
        {
1657
            siginfo_t uinfo;
1658
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1659
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1660
        }
1661
        break;
1662
    case TARGET_NR_sigreturn:
1663
        /* NOTE: ret is eax, so not transcoding must be done */
1664
        ret = do_sigreturn(cpu_env);
1665
        break;
1666
    case TARGET_NR_rt_sigreturn:
1667
        /* NOTE: ret is eax, so not transcoding must be done */
1668
        ret = do_rt_sigreturn(cpu_env);
1669
        break;
1670
    case TARGET_NR_setreuid:
1671
        ret = get_errno(setreuid(arg1, arg2));
1672
        break;
1673
    case TARGET_NR_setregid:
1674
        ret = get_errno(setregid(arg1, arg2));
1675
        break;
1676
    case TARGET_NR_sethostname:
1677
        ret = get_errno(sethostname((const char *)arg1, arg2));
1678
        break;
1679
    case TARGET_NR_setrlimit:
1680
        {
1681
            /* XXX: convert resource ? */
1682
            int resource = arg1;
1683
            struct target_rlimit *target_rlim = (void *)arg2;
1684
            struct rlimit rlim;
1685
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1686
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1687
            ret = get_errno(setrlimit(resource, &rlim));
1688
        }
1689
        break;
1690
    case TARGET_NR_getrlimit:
1691
        {
1692
            /* XXX: convert resource ? */
1693
            int resource = arg1;
1694
            struct target_rlimit *target_rlim = (void *)arg2;
1695
            struct rlimit rlim;
1696
            
1697
            ret = get_errno(getrlimit(resource, &rlim));
1698
            if (!is_error(ret)) {
1699
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1700
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1701
            }
1702
        }
1703
        break;
1704
    case TARGET_NR_getrusage:
1705
        goto unimplemented;
1706
    case TARGET_NR_gettimeofday:
1707
        {
1708
            struct target_timeval *target_tv = (void *)arg1;
1709
            struct timeval tv;
1710
            ret = get_errno(gettimeofday(&tv, NULL));
1711
            if (!is_error(ret)) {
1712
                host_to_target_timeval(target_tv, &tv);
1713
            }
1714
        }
1715
        break;
1716
    case TARGET_NR_settimeofday:
1717
        {
1718
            struct target_timeval *target_tv = (void *)arg1;
1719
            struct timeval tv;
1720
            target_to_host_timeval(&tv, target_tv);
1721
            ret = get_errno(settimeofday(&tv, NULL));
1722
        }
1723
        break;
1724
    case TARGET_NR_getgroups:
1725
        goto unimplemented;
1726
    case TARGET_NR_setgroups:
1727
        goto unimplemented;
1728
    case TARGET_NR_select:
1729
        goto unimplemented;
1730
    case TARGET_NR_symlink:
1731
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1732
        break;
1733
    case TARGET_NR_oldlstat:
1734
        goto unimplemented;
1735
    case TARGET_NR_readlink:
1736
        ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1737
        break;
1738
    case TARGET_NR_uselib:
1739
        goto unimplemented;
1740
    case TARGET_NR_swapon:
1741
        ret = get_errno(swapon((const char *)arg1, arg2));
1742
        break;
1743
    case TARGET_NR_reboot:
1744
        goto unimplemented;
1745
    case TARGET_NR_readdir:
1746
        goto unimplemented;
1747
#ifdef TARGET_I386
1748
    case TARGET_NR_mmap:
1749
        {
1750
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1751
            vptr = (uint32_t *)arg1;
1752
            v1 = tswap32(vptr[0]);
1753
            v2 = tswap32(vptr[1]);
1754
            v3 = tswap32(vptr[2]);
1755
            v4 = tswap32(vptr[3]);
1756
            v5 = tswap32(vptr[4]);
1757
            v6 = tswap32(vptr[5]);
1758
            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
1759
        }
1760
        break;
1761
#endif
1762
#ifdef TARGET_I386
1763
    case TARGET_NR_mmap2:
1764
#else
1765
    case TARGET_NR_mmap:
1766
#endif
1767
        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
1768
        break;
1769
    case TARGET_NR_munmap:
1770
        ret = get_errno(munmap((void *)arg1, arg2));
1771
        break;
1772
    case TARGET_NR_mprotect:
1773
        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
1774
        break;
1775
    case TARGET_NR_mremap:
1776
        ret = get_errno((long)mremap((void *)arg1, arg2, arg3, arg4));
1777
        break;
1778
    case TARGET_NR_msync:
1779
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1780
        break;
1781
    case TARGET_NR_mlock:
1782
        ret = get_errno(mlock((void *)arg1, arg2));
1783
        break;
1784
    case TARGET_NR_munlock:
1785
        ret = get_errno(munlock((void *)arg1, arg2));
1786
        break;
1787
    case TARGET_NR_mlockall:
1788
        ret = get_errno(mlockall(arg1));
1789
        break;
1790
    case TARGET_NR_munlockall:
1791
        ret = get_errno(munlockall());
1792
        break;
1793
    case TARGET_NR_truncate:
1794
        ret = get_errno(truncate((const char *)arg1, arg2));
1795
        break;
1796
    case TARGET_NR_ftruncate:
1797
        ret = get_errno(ftruncate(arg1, arg2));
1798
        break;
1799
    case TARGET_NR_fchmod:
1800
        ret = get_errno(fchmod(arg1, arg2));
1801
        break;
1802
    case TARGET_NR_fchown:
1803
        ret = get_errno(fchown(arg1, arg2, arg3));
1804
        break;
1805
    case TARGET_NR_getpriority:
1806
        ret = get_errno(getpriority(arg1, arg2));
1807
        break;
1808
    case TARGET_NR_setpriority:
1809
        ret = get_errno(setpriority(arg1, arg2, arg3));
1810
        break;
1811
    case TARGET_NR_profil:
1812
        goto unimplemented;
1813
    case TARGET_NR_statfs:
1814
        stfs = (void *)arg2;
1815
        ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
1816
    convert_statfs:
1817
        if (!is_error(ret)) {
1818
            tswap32s(&stfs->f_type);
1819
            tswap32s(&stfs->f_bsize);
1820
            tswap32s(&stfs->f_blocks);
1821
            tswap32s(&stfs->f_bfree);
1822
            tswap32s(&stfs->f_bavail);
1823
            tswap32s(&stfs->f_files);
1824
            tswap32s(&stfs->f_ffree);
1825
            tswap32s(&stfs->f_fsid.val[0]);
1826
            tswap32s(&stfs->f_fsid.val[1]);
1827
            tswap32s(&stfs->f_namelen);
1828
        }
1829
        break;
1830
    case TARGET_NR_fstatfs:
1831
        stfs = (void *)arg2;
1832
        ret = get_errno(sys_fstatfs(arg1, stfs));
1833
        goto convert_statfs;
1834
    case TARGET_NR_ioperm:
1835
        goto unimplemented;
1836
    case TARGET_NR_socketcall:
1837
        ret = do_socketcall(arg1, (int32_t *)arg2);
1838
        break;
1839
    case TARGET_NR_syslog:
1840
        goto unimplemented;
1841
    case TARGET_NR_setitimer:
1842
        {
1843
            struct target_itimerval *target_value = (void *)arg2;
1844
            struct target_itimerval *target_ovalue = (void *)arg3;
1845
            struct itimerval value, ovalue, *pvalue;
1846

    
1847
            if (target_value) {
1848
                pvalue = &value;
1849
                target_to_host_timeval(&pvalue->it_interval, 
1850
                                       &target_value->it_interval);
1851
                target_to_host_timeval(&pvalue->it_value, 
1852
                                       &target_value->it_value);
1853
            } else {
1854
                pvalue = NULL;
1855
            }
1856
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1857
            if (!is_error(ret) && target_ovalue) {
1858
                host_to_target_timeval(&target_ovalue->it_interval, 
1859
                                       &ovalue.it_interval);
1860
                host_to_target_timeval(&target_ovalue->it_value, 
1861
                                       &ovalue.it_value);
1862
            }
1863
        }
1864
        break;
1865
    case TARGET_NR_getitimer:
1866
        {
1867
            struct target_itimerval *target_value = (void *)arg2;
1868
            struct itimerval value;
1869
            
1870
            ret = get_errno(getitimer(arg1, &value));
1871
            if (!is_error(ret) && target_value) {
1872
                host_to_target_timeval(&target_value->it_interval, 
1873
                                       &value.it_interval);
1874
                host_to_target_timeval(&target_value->it_value, 
1875
                                       &value.it_value);
1876
            }
1877
        }
1878
        break;
1879
    case TARGET_NR_stat:
1880
        ret = get_errno(stat(path((const char *)arg1), &st));
1881
        goto do_stat;
1882
    case TARGET_NR_lstat:
1883
        ret = get_errno(lstat(path((const char *)arg1), &st));
1884
        goto do_stat;
1885
    case TARGET_NR_fstat:
1886
        {
1887
            ret = get_errno(fstat(arg1, &st));
1888
        do_stat:
1889
            if (!is_error(ret)) {
1890
                struct target_stat *target_st = (void *)arg2;
1891
                target_st->st_dev = tswap16(st.st_dev);
1892
                target_st->st_ino = tswapl(st.st_ino);
1893
                target_st->st_mode = tswap16(st.st_mode);
1894
                target_st->st_nlink = tswap16(st.st_nlink);
1895
                target_st->st_uid = tswap16(st.st_uid);
1896
                target_st->st_gid = tswap16(st.st_gid);
1897
                target_st->st_rdev = tswap16(st.st_rdev);
1898
                target_st->st_size = tswapl(st.st_size);
1899
                target_st->st_blksize = tswapl(st.st_blksize);
1900
                target_st->st_blocks = tswapl(st.st_blocks);
1901
                target_st->target_st_atime = tswapl(st.st_atime);
1902
                target_st->target_st_mtime = tswapl(st.st_mtime);
1903
                target_st->target_st_ctime = tswapl(st.st_ctime);
1904
            }
1905
        }
1906
        break;
1907
    case TARGET_NR_olduname:
1908
        goto unimplemented;
1909
    case TARGET_NR_iopl:
1910
        goto unimplemented;
1911
    case TARGET_NR_vhangup:
1912
        ret = get_errno(vhangup());
1913
        break;
1914
    case TARGET_NR_idle:
1915
        goto unimplemented;
1916
    case TARGET_NR_wait4:
1917
        {
1918
            int status;
1919
            target_long *status_ptr = (void *)arg2;
1920
            struct rusage rusage, *rusage_ptr;
1921
            struct target_rusage *target_rusage = (void *)arg4;
1922
            if (target_rusage)
1923
                rusage_ptr = &rusage;
1924
            else
1925
                rusage_ptr = NULL;
1926
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1927
            if (!is_error(ret)) {
1928
                if (status_ptr)
1929
                    *status_ptr = tswap32(status);
1930
                if (target_rusage) {
1931
                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
1932
                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
1933
                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
1934
                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
1935
                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
1936
                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
1937
                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
1938
                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
1939
                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
1940
                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
1941
                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
1942
                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
1943
                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
1944
                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
1945
                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
1946
                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
1947
                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
1948
                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
1949
                }
1950
            }
1951
        }
1952
        break;
1953
    case TARGET_NR_swapoff:
1954
        ret = get_errno(swapoff((const char *)arg1));
1955
        break;
1956
    case TARGET_NR_sysinfo:
1957
        goto unimplemented;
1958
    case TARGET_NR_ipc:
1959
        goto unimplemented;
1960
    case TARGET_NR_fsync:
1961
        ret = get_errno(fsync(arg1));
1962
        break;
1963
    case TARGET_NR_clone:
1964
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
1965
        break;
1966
#ifdef __NR_exit_group
1967
        /* new thread calls */
1968
    case TARGET_NR_exit_group:
1969
        ret = get_errno(exit_group(arg1));
1970
        break;
1971
#endif
1972
    case TARGET_NR_setdomainname:
1973
        ret = get_errno(setdomainname((const char *)arg1, arg2));
1974
        break;
1975
    case TARGET_NR_uname:
1976
        /* no need to transcode because we use the linux syscall */
1977
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
1978
        break;
1979
#ifdef TARGET_I386
1980
    case TARGET_NR_modify_ldt:
1981
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
1982
        break;
1983
    case TARGET_NR_vm86old:
1984
        goto unimplemented;
1985
    case TARGET_NR_vm86:
1986
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
1987
        break;
1988
#endif
1989
    case TARGET_NR_adjtimex:
1990
        goto unimplemented;
1991
    case TARGET_NR_create_module:
1992
    case TARGET_NR_init_module:
1993
    case TARGET_NR_delete_module:
1994
    case TARGET_NR_get_kernel_syms:
1995
        goto unimplemented;
1996
    case TARGET_NR_quotactl:
1997
        goto unimplemented;
1998
    case TARGET_NR_getpgid:
1999
        ret = get_errno(getpgid(arg1));
2000
        break;
2001
    case TARGET_NR_fchdir:
2002
        ret = get_errno(fchdir(arg1));
2003
        break;
2004
    case TARGET_NR_bdflush:
2005
        goto unimplemented;
2006
    case TARGET_NR_sysfs:
2007
        goto unimplemented;
2008
    case TARGET_NR_personality:
2009
        ret = get_errno(personality(arg1));
2010
        break;
2011
    case TARGET_NR_afs_syscall:
2012
        goto unimplemented;
2013
    case TARGET_NR_setfsuid:
2014
        ret = get_errno(setfsuid(arg1));
2015
        break;
2016
    case TARGET_NR_setfsgid:
2017
        ret = get_errno(setfsgid(arg1));
2018
        break;
2019
    case TARGET_NR__llseek:
2020
        {
2021
            int64_t res;
2022
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2023
            *(int64_t *)arg4 = tswap64(res);
2024
        }
2025
        break;
2026
    case TARGET_NR_getdents:
2027
#if TARGET_LONG_SIZE != 4
2028
#error not supported
2029
#endif
2030
        {
2031
            struct dirent *dirp = (void *)arg2;
2032
            long count = arg3;
2033

    
2034
            ret = get_errno(sys_getdents(arg1, dirp, count));
2035
            if (!is_error(ret)) {
2036
                struct dirent *de;
2037
                int len = ret;
2038
                int reclen;
2039
                de = dirp;
2040
                while (len > 0) {
2041
                    reclen = de->d_reclen;
2042
                    if (reclen > len)
2043
                        break;
2044
                    de->d_reclen = tswap16(reclen);
2045
                    tswapls(&de->d_ino);
2046
                    tswapls(&de->d_off);
2047
                    de = (struct dirent *)((char *)de + reclen);
2048
                    len -= reclen;
2049
                }
2050
            }
2051
        }
2052
        break;
2053
    case TARGET_NR_getdents64:
2054
        {
2055
            struct dirent64 *dirp = (void *)arg2;
2056
            long count = arg3;
2057
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2058
            if (!is_error(ret)) {
2059
                struct dirent64 *de;
2060
                int len = ret;
2061
                int reclen;
2062
                de = dirp;
2063
                while (len > 0) {
2064
                    reclen = de->d_reclen;
2065
                    if (reclen > len)
2066
                        break;
2067
                    de->d_reclen = tswap16(reclen);
2068
                    tswap64s(&de->d_ino);
2069
                    tswap64s(&de->d_off);
2070
                    de = (struct dirent64 *)((char *)de + reclen);
2071
                    len -= reclen;
2072
                }
2073
            }
2074
        }
2075
        break;
2076
    case TARGET_NR__newselect:
2077
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2078
                        (void *)arg5);
2079
        break;
2080
    case TARGET_NR_poll:
2081
        {
2082
            struct target_pollfd *target_pfd = (void *)arg1;
2083
            unsigned int nfds = arg2;
2084
            int timeout = arg3;
2085
            struct pollfd *pfd;
2086
            unsigned int i;
2087

    
2088
            pfd = alloca(sizeof(struct pollfd) * nfds);
2089
            for(i = 0; i < nfds; i++) {
2090
                pfd[i].fd = tswap32(target_pfd[i].fd);
2091
                pfd[i].events = tswap16(target_pfd[i].events);
2092
            }
2093
            ret = get_errno(poll(pfd, nfds, timeout));
2094
            if (!is_error(ret)) {
2095
                for(i = 0; i < nfds; i++) {
2096
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2097
                }
2098
            }
2099
        }
2100
        break;
2101
    case TARGET_NR_flock:
2102
        /* NOTE: the flock constant seems to be the same for every
2103
           Linux platform */
2104
        ret = get_errno(flock(arg1, arg2));
2105
        break;
2106
    case TARGET_NR_readv:
2107
        {
2108
            int count = arg3;
2109
            int i;
2110
            struct iovec *vec;
2111
            struct target_iovec *target_vec = (void *)arg2;
2112

    
2113
            vec = alloca(count * sizeof(struct iovec));
2114
            for(i = 0;i < count; i++) {
2115
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2116
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2117
            }
2118
            ret = get_errno(readv(arg1, vec, count));
2119
        }
2120
        break;
2121
    case TARGET_NR_writev:
2122
        {
2123
            int count = arg3;
2124
            int i;
2125
            struct iovec *vec;
2126
            struct target_iovec *target_vec = (void *)arg2;
2127

    
2128
            vec = alloca(count * sizeof(struct iovec));
2129
            for(i = 0;i < count; i++) {
2130
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2131
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2132
            }
2133
            ret = get_errno(writev(arg1, vec, count));
2134
        }
2135
        break;
2136
    case TARGET_NR_getsid:
2137
        ret = get_errno(getsid(arg1));
2138
        break;
2139
    case TARGET_NR_fdatasync:
2140
        ret = get_errno(fdatasync(arg1));
2141
        break;
2142
    case TARGET_NR__sysctl:
2143
        goto unimplemented;
2144
    case TARGET_NR_sched_setparam:
2145
        {
2146
            struct sched_param *target_schp = (void *)arg2;
2147
            struct sched_param schp;
2148
            schp.sched_priority = tswap32(target_schp->sched_priority);
2149
            ret = get_errno(sched_setparam(arg1, &schp));
2150
        }
2151
        break;
2152
    case TARGET_NR_sched_getparam:
2153
        {
2154
            struct sched_param *target_schp = (void *)arg2;
2155
            struct sched_param schp;
2156
            ret = get_errno(sched_getparam(arg1, &schp));
2157
            if (!is_error(ret)) {
2158
                target_schp->sched_priority = tswap32(schp.sched_priority);
2159
            }
2160
        }
2161
        break;
2162
    case TARGET_NR_sched_setscheduler:
2163
        {
2164
            struct sched_param *target_schp = (void *)arg3;
2165
            struct sched_param schp;
2166
            schp.sched_priority = tswap32(target_schp->sched_priority);
2167
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2168
        }
2169
        break;
2170
    case TARGET_NR_sched_getscheduler:
2171
        ret = get_errno(sched_getscheduler(arg1));
2172
        break;
2173
    case TARGET_NR_sched_yield:
2174
        ret = get_errno(sched_yield());
2175
        break;
2176
    case TARGET_NR_sched_get_priority_max:
2177
        ret = get_errno(sched_get_priority_max(arg1));
2178
        break;
2179
    case TARGET_NR_sched_get_priority_min:
2180
        ret = get_errno(sched_get_priority_min(arg1));
2181
        break;
2182
    case TARGET_NR_sched_rr_get_interval:
2183
        {
2184
            struct target_timespec *target_ts = (void *)arg2;
2185
            struct timespec ts;
2186
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2187
            if (!is_error(ret)) {
2188
                target_ts->tv_sec = tswapl(ts.tv_sec);
2189
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2190
            }
2191
        }
2192
        break;
2193
    case TARGET_NR_nanosleep:
2194
        {
2195
            struct target_timespec *target_req = (void *)arg1;
2196
            struct target_timespec *target_rem = (void *)arg2;
2197
            struct timespec req, rem;
2198
            req.tv_sec = tswapl(target_req->tv_sec);
2199
            req.tv_nsec = tswapl(target_req->tv_nsec);
2200
            ret = get_errno(nanosleep(&req, &rem));
2201
            if (target_rem) {
2202
                target_rem->tv_sec = tswapl(rem.tv_sec);
2203
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2204
            }
2205
        }
2206
        break;
2207
    case TARGET_NR_setresuid:
2208
        ret = get_errno(setresuid(low2highuid(arg1), 
2209
                                  low2highuid(arg2), 
2210
                                  low2highuid(arg3)));
2211
        break;
2212
    case TARGET_NR_getresuid:
2213
        {
2214
            int ruid, euid, suid;
2215
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2216
            if (!is_error(ret)) {
2217
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2218
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2219
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2220
            }
2221
        }
2222
        break;
2223
    case TARGET_NR_setresgid:
2224
        ret = get_errno(setresgid(low2highgid(arg1), 
2225
                                  low2highgid(arg2), 
2226
                                  low2highgid(arg3)));
2227
        break;
2228
    case TARGET_NR_getresgid:
2229
        {
2230
            int rgid, egid, sgid;
2231
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2232
            if (!is_error(ret)) {
2233
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2234
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2235
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2236
            }
2237
        }
2238
        break;
2239
    case TARGET_NR_query_module:
2240
        goto unimplemented;
2241
    case TARGET_NR_nfsservctl:
2242
        goto unimplemented;
2243
    case TARGET_NR_prctl:
2244
        goto unimplemented;
2245
    case TARGET_NR_pread:
2246
        goto unimplemented;
2247
    case TARGET_NR_pwrite:
2248
        goto unimplemented;
2249
    case TARGET_NR_chown:
2250
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2251
        break;
2252
    case TARGET_NR_getcwd:
2253
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2254
        break;
2255
    case TARGET_NR_capget:
2256
        goto unimplemented;
2257
    case TARGET_NR_capset:
2258
        goto unimplemented;
2259
    case TARGET_NR_sigaltstack:
2260
        goto unimplemented;
2261
    case TARGET_NR_sendfile:
2262
        goto unimplemented;
2263
    case TARGET_NR_getpmsg:
2264
        goto unimplemented;
2265
    case TARGET_NR_putpmsg:
2266
        goto unimplemented;
2267
    case TARGET_NR_vfork:
2268
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2269
        break;
2270
    case TARGET_NR_ugetrlimit:
2271
    {
2272
        struct rlimit rlim;
2273
        ret = get_errno(getrlimit(arg1, &rlim));
2274
        if (!is_error(ret)) {
2275
            struct target_rlimit *target_rlim = (void *)arg2;
2276
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2277
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
2278
        }
2279
        break;
2280
    }
2281
    case TARGET_NR_truncate64:
2282
        goto unimplemented;
2283
    case TARGET_NR_ftruncate64:
2284
        goto unimplemented;
2285
    case TARGET_NR_stat64:
2286
        ret = get_errno(stat(path((const char *)arg1), &st));
2287
        goto do_stat64;
2288
    case TARGET_NR_lstat64:
2289
        ret = get_errno(lstat(path((const char *)arg1), &st));
2290
        goto do_stat64;
2291
    case TARGET_NR_fstat64:
2292
        {
2293
            ret = get_errno(fstat(arg1, &st));
2294
        do_stat64:
2295
            if (!is_error(ret)) {
2296
                struct target_stat64 *target_st = (void *)arg2;
2297
                memset(target_st, 0, sizeof(struct target_stat64));
2298
                target_st->st_dev = tswap16(st.st_dev);
2299
                target_st->st_ino = tswap64(st.st_ino);
2300
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2301
                target_st->__st_ino = tswapl(st.st_ino);
2302
#endif
2303
                target_st->st_mode = tswap32(st.st_mode);
2304
                target_st->st_nlink = tswap32(st.st_nlink);
2305
                target_st->st_uid = tswapl(st.st_uid);
2306
                target_st->st_gid = tswapl(st.st_gid);
2307
                target_st->st_rdev = tswap16(st.st_rdev);
2308
                /* XXX: better use of kernel struct */
2309
                target_st->st_size = tswap64(st.st_size);
2310
                target_st->st_blksize = tswapl(st.st_blksize);
2311
                target_st->st_blocks = tswapl(st.st_blocks);
2312
                target_st->target_st_atime = tswapl(st.st_atime);
2313
                target_st->target_st_mtime = tswapl(st.st_mtime);
2314
                target_st->target_st_ctime = tswapl(st.st_ctime);
2315
            }
2316
        }
2317
        break;
2318

    
2319
    case TARGET_NR_lchown32:
2320
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2321
        break;
2322
    case TARGET_NR_getuid32:
2323
        ret = get_errno(getuid());
2324
        break;
2325
    case TARGET_NR_getgid32:
2326
        ret = get_errno(getgid());
2327
        break;
2328
    case TARGET_NR_geteuid32:
2329
        ret = get_errno(geteuid());
2330
        break;
2331
    case TARGET_NR_getegid32:
2332
        ret = get_errno(getegid());
2333
        break;
2334
    case TARGET_NR_setreuid32:
2335
        ret = get_errno(setreuid(arg1, arg2));
2336
        break;
2337
    case TARGET_NR_setregid32:
2338
        ret = get_errno(setregid(arg1, arg2));
2339
        break;
2340
    case TARGET_NR_getgroups32:
2341
        goto unimplemented;
2342
    case TARGET_NR_setgroups32:
2343
        goto unimplemented;
2344
    case TARGET_NR_fchown32:
2345
        ret = get_errno(fchown(arg1, arg2, arg3));
2346
        break;
2347
    case TARGET_NR_setresuid32:
2348
        ret = get_errno(setresuid(arg1, arg2, arg3));
2349
        break;
2350
    case TARGET_NR_getresuid32:
2351
        {
2352
            int ruid, euid, suid;
2353
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2354
            if (!is_error(ret)) {
2355
                *(uint32_t *)arg1 = tswap32(ruid);
2356
                *(uint32_t *)arg2 = tswap32(euid);
2357
                *(uint32_t *)arg3 = tswap32(suid);
2358
            }
2359
        }
2360
        break;
2361
    case TARGET_NR_setresgid32:
2362
        ret = get_errno(setresgid(arg1, arg2, arg3));
2363
        break;
2364
    case TARGET_NR_getresgid32:
2365
        {
2366
            int rgid, egid, sgid;
2367
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2368
            if (!is_error(ret)) {
2369
                *(uint32_t *)arg1 = tswap32(rgid);
2370
                *(uint32_t *)arg2 = tswap32(egid);
2371
                *(uint32_t *)arg3 = tswap32(sgid);
2372
            }
2373
        }
2374
        break;
2375
    case TARGET_NR_chown32:
2376
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2377
        break;
2378
    case TARGET_NR_setuid32:
2379
        ret = get_errno(setuid(arg1));
2380
        break;
2381
    case TARGET_NR_setgid32:
2382
        ret = get_errno(setgid(arg1));
2383
        break;
2384
    case TARGET_NR_setfsuid32:
2385
        ret = get_errno(setfsuid(arg1));
2386
        break;
2387
    case TARGET_NR_setfsgid32:
2388
        ret = get_errno(setfsgid(arg1));
2389
        break;
2390
    case TARGET_NR_pivot_root:
2391
        goto unimplemented;
2392
    case TARGET_NR_mincore:
2393
        goto unimplemented;
2394
    case TARGET_NR_madvise:
2395
        goto unimplemented;
2396
#if TARGET_LONG_BITS == 32
2397
    case TARGET_NR_fcntl64:
2398
    {
2399
        struct flock64 fl;
2400
        struct target_flock64 *target_fl = (void *)arg3;
2401

    
2402
        switch(arg2) {
2403
        case F_GETLK64:
2404
            ret = get_errno(fcntl(arg1, arg2, &fl));
2405
            if (ret == 0) {
2406
                target_fl->l_type = tswap16(fl.l_type);
2407
                target_fl->l_whence = tswap16(fl.l_whence);
2408
                target_fl->l_start = tswap64(fl.l_start);
2409
                target_fl->l_len = tswap64(fl.l_len);
2410
                target_fl->l_pid = tswapl(fl.l_pid);
2411
            }
2412
            break;
2413

    
2414
        case F_SETLK64:
2415
        case F_SETLKW64:
2416
            fl.l_type = tswap16(target_fl->l_type);
2417
            fl.l_whence = tswap16(target_fl->l_whence);
2418
            fl.l_start = tswap64(target_fl->l_start);
2419
            fl.l_len = tswap64(target_fl->l_len);
2420
            fl.l_pid = tswapl(target_fl->l_pid);
2421
            ret = get_errno(fcntl(arg1, arg2, &fl));
2422
            break;
2423
        default:
2424
            ret = get_errno(fcntl(arg1, arg2, arg3));
2425
            break;
2426
        }
2427
        break;
2428
    }
2429
#endif
2430
    case TARGET_NR_security:
2431
        goto unimplemented;
2432
    case TARGET_NR_gettid:
2433
        ret = get_errno(gettid());
2434
        break;
2435
    case TARGET_NR_readahead:
2436
        goto unimplemented;
2437
    case TARGET_NR_setxattr:
2438
    case TARGET_NR_lsetxattr:
2439
    case TARGET_NR_fsetxattr:
2440
    case TARGET_NR_getxattr:
2441
    case TARGET_NR_lgetxattr:
2442
    case TARGET_NR_fgetxattr:
2443
    case TARGET_NR_listxattr:
2444
    case TARGET_NR_llistxattr:
2445
    case TARGET_NR_flistxattr:
2446
    case TARGET_NR_removexattr:
2447
    case TARGET_NR_lremovexattr:
2448
    case TARGET_NR_fremovexattr:
2449
        goto unimplemented_nowarn;
2450
    case TARGET_NR_set_thread_area:
2451
    case TARGET_NR_get_thread_area:
2452
        goto unimplemented_nowarn;
2453
    default:
2454
    unimplemented:
2455
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2456
    unimplemented_nowarn:
2457
        ret = -ENOSYS;
2458
        break;
2459
    }
2460
 fail:
2461
    return ret;
2462
}
2463