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1
/*
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 *  Linux syscalls
3
 * 
4
 *  Copyright (c) 2003 Fabrice Bellard
5
 *
6
 *  This program is free software; you can redistribute it and/or modify
7
 *  it under the terms of the GNU General Public License as published by
8
 *  the Free Software Foundation; either version 2 of the License, or
9
 *  (at your option) any later version.
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 *
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 *  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>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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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>
35
#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>
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#include <sys/uio.h>
42
#include <sys/poll.h>
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#include <sys/times.h>
44
//#include <sys/user.h>
45
#include <netinet/tcp.h>
46

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

    
54
#include <linux/termios.h>
55
#include <linux/unistd.h>
56
#include <linux/utsname.h>
57
#include <linux/cdrom.h>
58
#include <linux/hdreg.h>
59
#include <linux/soundcard.h>
60
#include <linux/dirent.h>
61
#include <linux/kd.h>
62

    
63
#include "qemu.h"
64

    
65
//#define DEBUG
66

    
67
//#include <linux/msdos_fs.h>
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#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
69
#define        VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
70

    
71
#define __NR_sys_uname __NR_uname
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#define __NR_sys_getcwd1 __NR_getcwd
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#define __NR_sys_statfs __NR_statfs
74
#define __NR_sys_fstatfs __NR_fstatfs
75
#define __NR_sys_getdents __NR_getdents
76
#define __NR_sys_getdents64 __NR_getdents64
77
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
78

    
79
#if defined(__alpha__) || defined (__ia64__)
80
#define __NR__llseek __NR_lseek
81
#endif
82

    
83
#ifdef __NR_gettid
84
_syscall0(int, gettid)
85
#else
86
static int gettid(void) {
87
    return -ENOSYS;
88
}
89
#endif
90
_syscall1(int,sys_uname,struct new_utsname *,buf)
91
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
92
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
93
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
94
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
95
          loff_t *, res, uint, wh);
96
_syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
97
_syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
98
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
99
#ifdef __NR_exit_group
100
_syscall1(int,exit_group,int,error_code)
101
#endif
102

    
103
extern int personality(int);
104
extern int flock(int, int);
105
extern int setfsuid(int);
106
extern int setfsgid(int);
107
extern int setresuid(uid_t, uid_t, uid_t);
108
extern int getresuid(uid_t *, uid_t *, uid_t *);
109
extern int setresgid(gid_t, gid_t, gid_t);
110
extern int getresgid(gid_t *, gid_t *, gid_t *);
111
extern int setgroups(int, gid_t *);
112

    
113
static inline long get_errno(long ret)
114
{
115
    if (ret == -1)
116
        return -errno;
117
    else
118
        return ret;
119
}
120

    
121
static inline int is_error(long ret)
122
{
123
    return (unsigned long)ret >= (unsigned long)(-4096);
124
}
125

    
126
static char *target_brk;
127
static char *target_original_brk;
128

    
129
void target_set_brk(char *new_brk)
130
{
131
    target_brk = new_brk;
132
    target_original_brk = new_brk;
133
}
134

    
135
static long do_brk(char *new_brk)
136
{
137
    char *brk_page;
138
    long mapped_addr;
139
    int        new_alloc_size;
140

    
141
    if (!new_brk)
142
        return (long)target_brk;
143
    if (new_brk < target_original_brk)
144
        return -ENOMEM;
145
    
146
    brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
147

    
148
    /* If the new brk is less than this, set it and we're done... */
149
    if (new_brk < brk_page) {
150
        target_brk = new_brk;
151
            return (long)target_brk;
152
    }
153

    
154
    /* We need to allocate more memory after the brk... */
155
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
156
    mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size, 
157
                                        PROT_READ|PROT_WRITE,
158
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
159
    if (is_error(mapped_addr)) {
160
        return mapped_addr;
161
    } else {
162
        target_brk = new_brk;
163
            return (long)target_brk;
164
    }
165
}
166

    
167
static inline fd_set *target_to_host_fds(fd_set *fds, 
168
                                         target_long *target_fds, int n)
169
{
170
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
171
    return (fd_set *)target_fds;
172
#else
173
    int i, b;
174
    if (target_fds) {
175
        FD_ZERO(fds);
176
        for(i = 0;i < n; i++) {
177
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
178
                 (i & (TARGET_LONG_BITS - 1))) & 1;
179
            if (b)
180
                FD_SET(i, fds);
181
        }
182
        return fds;
183
    } else {
184
        return NULL;
185
    }
186
#endif
187
}
188

    
189
static inline void host_to_target_fds(target_long *target_fds, 
190
                                      fd_set *fds, int n)
191
{
192
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
193
    /* nothing to do */
194
#else
195
    int i, nw, j, k;
196
    target_long v;
197

    
198
    if (target_fds) {
199
        nw = n / TARGET_LONG_BITS;
200
        k = 0;
201
        for(i = 0;i < nw; i++) {
202
            v = 0;
203
            for(j = 0; j < TARGET_LONG_BITS; j++) {
204
                v |= ((FD_ISSET(k, fds) != 0) << j);
205
                k++;
206
            }
207
            target_fds[i] = tswapl(v);
208
        }
209
    }
210
#endif
211
}
212

    
213
#if defined(__alpha__)
214
#define HOST_HZ 1024
215
#else
216
#define HOST_HZ 100
217
#endif
218

    
219
static inline long host_to_target_clock_t(long ticks)
220
{
221
#if HOST_HZ == TARGET_HZ
222
    return ticks;
223
#else
224
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
225
#endif
226
}
227

    
228
static inline void host_to_target_rusage(struct target_rusage *target_rusage, 
229
                                         const struct rusage *rusage)
230
{
231
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
232
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
233
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
234
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
235
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
236
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
237
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
238
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
239
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
240
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
241
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
242
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
243
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
244
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
245
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
246
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
247
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
248
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
249
}
250

    
251
static inline void target_to_host_timeval(struct timeval *tv, 
252
                                          const struct target_timeval *target_tv)
253
{
254
    tv->tv_sec = tswapl(target_tv->tv_sec);
255
    tv->tv_usec = tswapl(target_tv->tv_usec);
256
}
257

    
258
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
259
                                          const struct timeval *tv)
260
{
261
    target_tv->tv_sec = tswapl(tv->tv_sec);
262
    target_tv->tv_usec = tswapl(tv->tv_usec);
263
}
264

    
265

    
266
static long do_select(long n, 
267
                      target_long *target_rfds, target_long *target_wfds, 
268
                      target_long *target_efds, struct target_timeval *target_tv)
269
{
270
    fd_set rfds, wfds, efds;
271
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
272
    struct timeval tv, *tv_ptr;
273
    long ret;
274

    
275
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
276
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
277
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
278
            
279
    if (target_tv) {
280
        target_to_host_timeval(&tv, target_tv);
281
        tv_ptr = &tv;
282
    } else {
283
        tv_ptr = NULL;
284
    }
285
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
286
    if (!is_error(ret)) {
287
        host_to_target_fds(target_rfds, rfds_ptr, n);
288
        host_to_target_fds(target_wfds, wfds_ptr, n);
289
        host_to_target_fds(target_efds, efds_ptr, n);
290

    
291
        if (target_tv) {
292
            host_to_target_timeval(target_tv, &tv);
293
        }
294
    }
295
    return ret;
296
}
297

    
298
static inline void target_to_host_sockaddr(struct sockaddr *addr,
299
                                           struct target_sockaddr *target_addr,
300
                                           socklen_t len)
301
{
302
    memcpy(addr, target_addr, len);
303
    addr->sa_family = tswap16(target_addr->sa_family);
304
}
305

    
306
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
307
                                           struct sockaddr *addr,
308
                                           socklen_t len)
309
{
310
    memcpy(target_addr, addr, len);
311
    target_addr->sa_family = tswap16(addr->sa_family);
312
}
313

    
314
static inline void target_to_host_cmsg(struct msghdr *msgh,
315
                                       struct target_msghdr *target_msgh)
316
{
317
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
318
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
319
    socklen_t space = 0;
320

    
321
    while (cmsg && target_cmsg) {
322
        void *data = CMSG_DATA(cmsg);
323
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
324

    
325
        int len = tswapl(target_cmsg->cmsg_len) 
326
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
327

    
328
        space += CMSG_SPACE(len);
329
        if (space > msgh->msg_controllen) {
330
            space -= CMSG_SPACE(len);
331
            gemu_log("Host cmsg overflow");
332
            break;
333
        }
334

    
335
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
336
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
337
        cmsg->cmsg_len = CMSG_LEN(len);
338

    
339
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
340
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
341
            memcpy(data, target_data, len);
342
        } else {
343
            int *fd = (int *)data;
344
            int *target_fd = (int *)target_data;
345
            int i, numfds = len / sizeof(int);
346

    
347
            for (i = 0; i < numfds; i++)
348
                fd[i] = tswap32(target_fd[i]);
349
        }
350

    
351
        cmsg = CMSG_NXTHDR(msgh, cmsg);
352
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
353
    }
354

    
355
    msgh->msg_controllen = space;
356
}
357

    
358
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
359
                                       struct msghdr *msgh)
360
{
361
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
362
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
363
    socklen_t space = 0;
364

    
365
    while (cmsg && target_cmsg) {
366
        void *data = CMSG_DATA(cmsg);
367
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
368

    
369
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
370

    
371
        space += TARGET_CMSG_SPACE(len);
372
        if (space > tswapl(target_msgh->msg_controllen)) {
373
            space -= TARGET_CMSG_SPACE(len);
374
            gemu_log("Target cmsg overflow");
375
            break;
376
        }
377

    
378
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
379
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
380
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
381

    
382
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
383
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
384
            memcpy(target_data, data, len);
385
        } else {
386
            int *fd = (int *)data;
387
            int *target_fd = (int *)target_data;
388
            int i, numfds = len / sizeof(int);
389

    
390
            for (i = 0; i < numfds; i++)
391
                target_fd[i] = tswap32(fd[i]);
392
        }
393

    
394
        cmsg = CMSG_NXTHDR(msgh, cmsg);
395
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
396
    }
397

    
398
    msgh->msg_controllen = tswapl(space);
399
}
400

    
401
static long do_setsockopt(int sockfd, int level, int optname, 
402
                          void *optval, socklen_t optlen)
403
{
404
    if (level == SOL_TCP) {
405
        /* TCP options all take an 'int' value.  */
406
        int val;
407

    
408
        if (optlen < sizeof(uint32_t))
409
            return -EINVAL;
410

    
411
        val = tswap32(*(uint32_t *)optval);
412
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
413
    }
414

    
415
    else if (level != SOL_SOCKET) {
416
        gemu_log("Unsupported setsockopt level: %d\n", level);
417
        return -ENOSYS;
418
    }
419

    
420
    switch (optname) {
421
    /* Options with 'int' argument.  */
422
    case SO_DEBUG:
423
    case SO_REUSEADDR:
424
    case SO_TYPE:
425
    case SO_ERROR:
426
    case SO_DONTROUTE:
427
    case SO_BROADCAST:
428
    case SO_SNDBUF:
429
    case SO_RCVBUF:
430
    case SO_KEEPALIVE:
431
    case SO_OOBINLINE:
432
    case SO_NO_CHECK:
433
    case SO_PRIORITY:
434
    case SO_BSDCOMPAT:
435
    case SO_PASSCRED:
436
    case SO_TIMESTAMP:
437
    case SO_RCVLOWAT:
438
    case SO_RCVTIMEO:
439
    case SO_SNDTIMEO:
440
    {
441
        int val;
442
        if (optlen < sizeof(uint32_t))
443
            return -EINVAL;
444
        val = tswap32(*(uint32_t *)optval);
445
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
446
    }
447

    
448
    default:
449
        gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
450
        return -ENOSYS;
451
    }
452
}
453

    
454
static long do_getsockopt(int sockfd, int level, int optname, 
455
                          void *optval, socklen_t *optlen)
456
{
457
    gemu_log("getsockopt not yet supported\n");
458
    return -ENOSYS;
459
}
460

    
461
static long do_socketcall(int num, int32_t *vptr)
462
{
463
    long ret;
464

    
465
    switch(num) {
466
    case SOCKOP_socket:
467
        {
468
            int domain = tswap32(vptr[0]);
469
            int type = tswap32(vptr[1]);
470
            int protocol = tswap32(vptr[2]);
471

    
472
            ret = get_errno(socket(domain, type, protocol));
473
        }
474
        break;
475
    case SOCKOP_bind:
476
        {
477
            int sockfd = tswap32(vptr[0]);
478
            void *target_addr = (void *)tswap32(vptr[1]);
479
            socklen_t addrlen = tswap32(vptr[2]);
480
            void *addr = alloca(addrlen);
481

    
482
            target_to_host_sockaddr(addr, target_addr, addrlen);
483
            ret = get_errno(bind(sockfd, addr, addrlen));
484
        }
485
        break;
486
    case SOCKOP_connect:
487
        {
488
            int sockfd = tswap32(vptr[0]);
489
            void *target_addr = (void *)tswap32(vptr[1]);
490
            socklen_t addrlen = tswap32(vptr[2]);
491
            void *addr = alloca(addrlen);
492

    
493
            target_to_host_sockaddr(addr, target_addr, addrlen);
494
            ret = get_errno(connect(sockfd, addr, addrlen));
495
        }
496
        break;
497
    case SOCKOP_listen:
498
        {
499
            int sockfd = tswap32(vptr[0]);
500
            int backlog = tswap32(vptr[1]);
501

    
502
            ret = get_errno(listen(sockfd, backlog));
503
        }
504
        break;
505
    case SOCKOP_accept:
506
        {
507
            int sockfd = tswap32(vptr[0]);
508
            void *target_addr = (void *)tswap32(vptr[1]);
509
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
510
            socklen_t addrlen = tswap32(*target_addrlen);
511
            void *addr = alloca(addrlen);
512

    
513
            ret = get_errno(accept(sockfd, addr, &addrlen));
514
            if (!is_error(ret)) {
515
                host_to_target_sockaddr(target_addr, addr, addrlen);
516
                *target_addrlen = tswap32(addrlen);
517
            }
518
        }
519
        break;
520
    case SOCKOP_getsockname:
521
        {
522
            int sockfd = tswap32(vptr[0]);
523
            void *target_addr = (void *)tswap32(vptr[1]);
524
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
525
            socklen_t addrlen = tswap32(*target_addrlen);
526
            void *addr = alloca(addrlen);
527

    
528
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
529
            if (!is_error(ret)) {
530
                host_to_target_sockaddr(target_addr, addr, addrlen);
531
                *target_addrlen = tswap32(addrlen);
532
            }
533
        }
534
        break;
535
    case SOCKOP_getpeername:
536
        {
537
            int sockfd = tswap32(vptr[0]);
538
            void *target_addr = (void *)tswap32(vptr[1]);
539
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
540
            socklen_t addrlen = tswap32(*target_addrlen);
541
            void *addr = alloca(addrlen);
542

    
543
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
544
            if (!is_error(ret)) {
545
                host_to_target_sockaddr(target_addr, addr, addrlen);
546
                *target_addrlen = tswap32(addrlen);
547
            }
548
        }
549
        break;
550
    case SOCKOP_socketpair:
551
        {
552
            int domain = tswap32(vptr[0]);
553
            int type = tswap32(vptr[1]);
554
            int protocol = tswap32(vptr[2]);
555
            int32_t *target_tab = (void *)tswap32(vptr[3]);
556
            int tab[2];
557

    
558
            ret = get_errno(socketpair(domain, type, protocol, tab));
559
            if (!is_error(ret)) {
560
                target_tab[0] = tswap32(tab[0]);
561
                target_tab[1] = tswap32(tab[1]);
562
            }
563
        }
564
        break;
565
    case SOCKOP_send:
566
        {
567
            int sockfd = tswap32(vptr[0]);
568
            void *msg = (void *)tswap32(vptr[1]);
569
            size_t len = tswap32(vptr[2]);
570
            int flags = tswap32(vptr[3]);
571

    
572
            ret = get_errno(send(sockfd, msg, len, flags));
573
        }
574
        break;
575
    case SOCKOP_recv:
576
        {
577
            int sockfd = tswap32(vptr[0]);
578
            void *msg = (void *)tswap32(vptr[1]);
579
            size_t len = tswap32(vptr[2]);
580
            int flags = tswap32(vptr[3]);
581

    
582
            ret = get_errno(recv(sockfd, msg, len, flags));
583
        }
584
        break;
585
    case SOCKOP_sendto:
586
        {
587
            int sockfd = tswap32(vptr[0]);
588
            void *msg = (void *)tswap32(vptr[1]);
589
            size_t len = tswap32(vptr[2]);
590
            int flags = tswap32(vptr[3]);
591
            void *target_addr = (void *)tswap32(vptr[4]);
592
            socklen_t addrlen = tswap32(vptr[5]);
593
            void *addr = alloca(addrlen);
594

    
595
            target_to_host_sockaddr(addr, target_addr, addrlen);
596
            ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
597
        }
598
        break;
599
    case SOCKOP_recvfrom:
600
        {
601
            int sockfd = tswap32(vptr[0]);
602
            void *msg = (void *)tswap32(vptr[1]);
603
            size_t len = tswap32(vptr[2]);
604
            int flags = tswap32(vptr[3]);
605
            void *target_addr = (void *)tswap32(vptr[4]);
606
            uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
607
            socklen_t addrlen = tswap32(*target_addrlen);
608
            void *addr = alloca(addrlen);
609

    
610
            ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
611
            if (!is_error(ret)) {
612
                host_to_target_sockaddr(target_addr, addr, addrlen);
613
                *target_addrlen = tswap32(addrlen);
614
            }
615
        }
616
        break;
617
    case SOCKOP_shutdown:
618
        {
619
            int sockfd = tswap32(vptr[0]);
620
            int how = tswap32(vptr[1]);
621

    
622
            ret = get_errno(shutdown(sockfd, how));
623
        }
624
        break;
625
    case SOCKOP_sendmsg:
626
    case SOCKOP_recvmsg:
627
        {
628
            int fd;
629
            struct target_msghdr *msgp;
630
            struct msghdr msg;
631
            int flags, count, i;
632
            struct iovec *vec;
633
            struct target_iovec *target_vec;
634

    
635
            msgp = (void *)tswap32(vptr[1]);
636
            msg.msg_name = (void *)tswapl(msgp->msg_name);
637
            msg.msg_namelen = tswapl(msgp->msg_namelen);
638
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
639
            msg.msg_control = alloca(msg.msg_controllen);
640
            msg.msg_flags = tswap32(msgp->msg_flags);
641

    
642
            count = tswapl(msgp->msg_iovlen);
643
            vec = alloca(count * sizeof(struct iovec));
644
            target_vec = (void *)tswapl(msgp->msg_iov);
645
            for(i = 0;i < count; i++) {
646
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
647
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
648
            }
649
            msg.msg_iovlen = count;
650
            msg.msg_iov = vec;
651

    
652
            fd = tswap32(vptr[0]);
653
            flags = tswap32(vptr[2]);
654
            if (num == SOCKOP_sendmsg) {
655
                target_to_host_cmsg(&msg, msgp);
656
                ret = get_errno(sendmsg(fd, &msg, flags));
657
            } else {
658
                ret = get_errno(recvmsg(fd, &msg, flags));
659
                if (!is_error(ret))
660
                  host_to_target_cmsg(msgp, &msg);
661
            }
662
        }
663
        break;
664
    case SOCKOP_setsockopt:
665
        {
666
            int sockfd = tswap32(vptr[0]);
667
            int level = tswap32(vptr[1]);
668
            int optname = tswap32(vptr[2]);
669
            void *optval = (void *)tswap32(vptr[3]);
670
            socklen_t optlen = tswap32(vptr[4]);
671

    
672
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
673
        }
674
        break;
675
    case SOCKOP_getsockopt:
676
        {
677
            int sockfd = tswap32(vptr[0]);
678
            int level = tswap32(vptr[1]);
679
            int optname = tswap32(vptr[2]);
680
            void *optval = (void *)tswap32(vptr[3]);
681
            uint32_t *target_len = (void *)tswap32(vptr[4]);
682
            socklen_t optlen = tswap32(*target_len);
683

    
684
            ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
685
            if (!is_error(ret))
686
                *target_len = tswap32(optlen);
687
        }
688
        break;
689
    default:
690
        gemu_log("Unsupported socketcall: %d\n", num);
691
        ret = -ENOSYS;
692
        break;
693
    }
694
    return ret;
695
}
696

    
697
/* kernel structure types definitions */
698
#define IFNAMSIZ        16
699

    
700
#define STRUCT(name, list...) STRUCT_ ## name,
701
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
702
enum {
703
#include "syscall_types.h"
704
};
705
#undef STRUCT
706
#undef STRUCT_SPECIAL
707

    
708
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
709
#define STRUCT_SPECIAL(name)
710
#include "syscall_types.h"
711
#undef STRUCT
712
#undef STRUCT_SPECIAL
713

    
714
typedef struct IOCTLEntry {
715
    unsigned int target_cmd;
716
    unsigned int host_cmd;
717
    const char *name;
718
    int access;
719
    const argtype arg_type[5];
720
} IOCTLEntry;
721

    
722
#define IOC_R 0x0001
723
#define IOC_W 0x0002
724
#define IOC_RW (IOC_R | IOC_W)
725

    
726
#define MAX_STRUCT_SIZE 4096
727

    
728
IOCTLEntry ioctl_entries[] = {
729
#define IOCTL(cmd, access, types...) \
730
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
731
#include "ioctls.h"
732
    { 0, 0, },
733
};
734

    
735
static long do_ioctl(long fd, long cmd, long arg)
736
{
737
    const IOCTLEntry *ie;
738
    const argtype *arg_type;
739
    long ret;
740
    uint8_t buf_temp[MAX_STRUCT_SIZE];
741

    
742
    ie = ioctl_entries;
743
    for(;;) {
744
        if (ie->target_cmd == 0) {
745
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
746
            return -ENOSYS;
747
        }
748
        if (ie->target_cmd == cmd)
749
            break;
750
        ie++;
751
    }
752
    arg_type = ie->arg_type;
753
#if defined(DEBUG)
754
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
755
#endif
756
    switch(arg_type[0]) {
757
    case TYPE_NULL:
758
        /* no argument */
759
        ret = get_errno(ioctl(fd, ie->host_cmd));
760
        break;
761
    case TYPE_PTRVOID:
762
    case TYPE_INT:
763
        /* int argment */
764
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
765
        break;
766
    case TYPE_PTR:
767
        arg_type++;
768
        switch(ie->access) {
769
        case IOC_R:
770
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
771
            if (!is_error(ret)) {
772
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
773
            }
774
            break;
775
        case IOC_W:
776
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
777
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
778
            break;
779
        default:
780
        case IOC_RW:
781
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
782
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
783
            if (!is_error(ret)) {
784
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
785
            }
786
            break;
787
        }
788
        break;
789
    default:
790
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
791
        ret = -ENOSYS;
792
        break;
793
    }
794
    return ret;
795
}
796

    
797
bitmask_transtbl iflag_tbl[] = {
798
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
799
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
800
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
801
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
802
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
803
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
804
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
805
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
806
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
807
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
808
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
809
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
810
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
811
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
812
        { 0, 0, 0, 0 }
813
};
814

    
815
bitmask_transtbl oflag_tbl[] = {
816
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
817
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
818
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
819
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
820
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
821
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
822
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
823
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
824
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
825
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
826
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
827
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
828
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
829
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
830
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
831
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
832
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
833
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
834
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
835
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
836
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
837
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
838
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
839
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
840
        { 0, 0, 0, 0 }
841
};
842

    
843
bitmask_transtbl cflag_tbl[] = {
844
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
845
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
846
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
847
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
848
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
849
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
850
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
851
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
852
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
853
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
854
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
855
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
856
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
857
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
858
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
859
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
860
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
861
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
862
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
863
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
864
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
865
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
866
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
867
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
868
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
869
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
870
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
871
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
872
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
873
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
874
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
875
        { 0, 0, 0, 0 }
876
};
877

    
878
bitmask_transtbl lflag_tbl[] = {
879
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
880
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
881
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
882
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
883
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
884
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
885
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
886
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
887
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
888
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
889
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
890
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
891
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
892
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
893
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
894
        { 0, 0, 0, 0 }
895
};
896

    
897
static void target_to_host_termios (void *dst, const void *src)
898
{
899
    struct host_termios *host = dst;
900
    const struct target_termios *target = src;
901
    
902
    host->c_iflag = 
903
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
904
    host->c_oflag = 
905
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
906
    host->c_cflag = 
907
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
908
    host->c_lflag = 
909
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
910
    host->c_line = target->c_line;
911
    
912
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
913
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
914
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
915
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
916
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
917
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
918
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
919
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
920
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
921
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
922
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
923
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
924
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
925
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
926
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
927
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
928
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
929
}
930
  
931
static void host_to_target_termios (void *dst, const void *src)
932
{
933
    struct target_termios *target = dst;
934
    const struct host_termios *host = src;
935

    
936
    target->c_iflag = 
937
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
938
    target->c_oflag = 
939
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
940
    target->c_cflag = 
941
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
942
    target->c_lflag = 
943
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
944
    target->c_line = host->c_line;
945
  
946
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
947
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
948
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
949
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
950
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
951
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
952
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
953
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
954
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
955
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
956
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
957
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
958
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
959
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
960
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
961
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
962
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
963
}
964

    
965
StructEntry struct_termios_def = {
966
    .convert = { host_to_target_termios, target_to_host_termios },
967
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
968
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
969
};
970

    
971
static bitmask_transtbl mmap_flags_tbl[] = {
972
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
973
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
974
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
975
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
976
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
977
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
978
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
979
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
980
        { 0, 0, 0, 0 }
981
};
982

    
983
#if defined(TARGET_I386)
984

    
985
/* NOTE: there is really one LDT for all the threads */
986
uint8_t *ldt_table;
987

    
988
static int read_ldt(void *ptr, unsigned long bytecount)
989
{
990
    int size;
991

    
992
    if (!ldt_table)
993
        return 0;
994
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
995
    if (size > bytecount)
996
        size = bytecount;
997
    memcpy(ptr, ldt_table, size);
998
    return size;
999
}
1000

    
1001
/* XXX: add locking support */
1002
static int write_ldt(CPUX86State *env, 
1003
                     void *ptr, unsigned long bytecount, int oldmode)
1004
{
1005
    struct target_modify_ldt_ldt_s ldt_info;
1006
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1007
    int seg_not_present, useable;
1008
    uint32_t *lp, entry_1, entry_2;
1009

    
1010
    if (bytecount != sizeof(ldt_info))
1011
        return -EINVAL;
1012
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
1013
    tswap32s(&ldt_info.entry_number);
1014
    tswapls((long *)&ldt_info.base_addr);
1015
    tswap32s(&ldt_info.limit);
1016
    tswap32s(&ldt_info.flags);
1017
    
1018
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1019
        return -EINVAL;
1020
    seg_32bit = ldt_info.flags & 1;
1021
    contents = (ldt_info.flags >> 1) & 3;
1022
    read_exec_only = (ldt_info.flags >> 3) & 1;
1023
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1024
    seg_not_present = (ldt_info.flags >> 5) & 1;
1025
    useable = (ldt_info.flags >> 6) & 1;
1026

    
1027
    if (contents == 3) {
1028
        if (oldmode)
1029
            return -EINVAL;
1030
        if (seg_not_present == 0)
1031
            return -EINVAL;
1032
    }
1033
    /* allocate the LDT */
1034
    if (!ldt_table) {
1035
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1036
        if (!ldt_table)
1037
            return -ENOMEM;
1038
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1039
        env->ldt.base = ldt_table;
1040
        env->ldt.limit = 0xffff;
1041
    }
1042

    
1043
    /* NOTE: same code as Linux kernel */
1044
    /* Allow LDTs to be cleared by the user. */
1045
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1046
        if (oldmode ||
1047
            (contents == 0                &&
1048
             read_exec_only == 1        &&
1049
             seg_32bit == 0                &&
1050
             limit_in_pages == 0        &&
1051
             seg_not_present == 1        &&
1052
             useable == 0 )) {
1053
            entry_1 = 0;
1054
            entry_2 = 0;
1055
            goto install;
1056
        }
1057
    }
1058
    
1059
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1060
        (ldt_info.limit & 0x0ffff);
1061
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1062
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1063
        (ldt_info.limit & 0xf0000) |
1064
        ((read_exec_only ^ 1) << 9) |
1065
        (contents << 10) |
1066
        ((seg_not_present ^ 1) << 15) |
1067
        (seg_32bit << 22) |
1068
        (limit_in_pages << 23) |
1069
        0x7000;
1070
    if (!oldmode)
1071
        entry_2 |= (useable << 20);
1072

    
1073
    /* Install the new entry ...  */
1074
install:
1075
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1076
    lp[0] = tswap32(entry_1);
1077
    lp[1] = tswap32(entry_2);
1078
    return 0;
1079
}
1080

    
1081
/* specific and weird i386 syscalls */
1082
int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1083
{
1084
    int ret = -ENOSYS;
1085
    
1086
    switch (func) {
1087
    case 0:
1088
        ret = read_ldt(ptr, bytecount);
1089
        break;
1090
    case 1:
1091
        ret = write_ldt(env, ptr, bytecount, 1);
1092
        break;
1093
    case 0x11:
1094
        ret = write_ldt(env, ptr, bytecount, 0);
1095
        break;
1096
    }
1097
    return ret;
1098
}
1099

    
1100
#endif /* defined(TARGET_I386) */
1101

    
1102
/* this stack is the equivalent of the kernel stack associated with a
1103
   thread/process */
1104
#define NEW_STACK_SIZE 8192
1105

    
1106
static int clone_func(void *arg)
1107
{
1108
    CPUState *env = arg;
1109
    cpu_loop(env);
1110
    /* never exits */
1111
    return 0;
1112
}
1113

    
1114
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1115
{
1116
    int ret;
1117
    TaskState *ts;
1118
    uint8_t *new_stack;
1119
    CPUState *new_env;
1120
    
1121
    if (flags & CLONE_VM) {
1122
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1123
        memset(ts, 0, sizeof(TaskState));
1124
        new_stack = ts->stack;
1125
        ts->used = 1;
1126
        /* add in task state list */
1127
        ts->next = first_task_state;
1128
        first_task_state = ts;
1129
        /* we create a new CPU instance. */
1130
        new_env = cpu_init();
1131
        memcpy(new_env, env, sizeof(CPUState));
1132
#if defined(TARGET_I386)
1133
        if (!newsp)
1134
            newsp = env->regs[R_ESP];
1135
        new_env->regs[R_ESP] = newsp;
1136
        new_env->regs[R_EAX] = 0;
1137
#elif defined(TARGET_ARM)
1138
        if (!newsp)
1139
            newsp = env->regs[13];
1140
        new_env->regs[13] = newsp;
1141
        new_env->regs[0] = 0;
1142
#else
1143
#error unsupported target CPU
1144
#endif
1145
        new_env->opaque = ts;
1146
#ifdef __ia64__
1147
        ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1148
#else
1149
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1150
#endif
1151
    } else {
1152
        /* if no CLONE_VM, we consider it is a fork */
1153
        if ((flags & ~CSIGNAL) != 0)
1154
            return -EINVAL;
1155
        ret = fork();
1156
    }
1157
    return ret;
1158
}
1159

    
1160
static long do_fcntl(int fd, int cmd, unsigned long arg)
1161
{
1162
    struct flock fl;
1163
    struct target_flock *target_fl = (void *)arg;
1164
    long ret;
1165
    
1166
    switch(cmd) {
1167
    case TARGET_F_GETLK:
1168
        ret = fcntl(fd, cmd, &fl);
1169
        if (ret == 0) {
1170
            target_fl->l_type = tswap16(fl.l_type);
1171
            target_fl->l_whence = tswap16(fl.l_whence);
1172
            target_fl->l_start = tswapl(fl.l_start);
1173
            target_fl->l_len = tswapl(fl.l_len);
1174
            target_fl->l_pid = tswapl(fl.l_pid);
1175
        }
1176
        break;
1177
        
1178
    case TARGET_F_SETLK:
1179
    case TARGET_F_SETLKW:
1180
        fl.l_type = tswap16(target_fl->l_type);
1181
        fl.l_whence = tswap16(target_fl->l_whence);
1182
        fl.l_start = tswapl(target_fl->l_start);
1183
        fl.l_len = tswapl(target_fl->l_len);
1184
        fl.l_pid = tswapl(target_fl->l_pid);
1185
        ret = fcntl(fd, cmd, &fl);
1186
        break;
1187
        
1188
    case TARGET_F_GETLK64:
1189
    case TARGET_F_SETLK64:
1190
    case TARGET_F_SETLKW64:
1191
        ret = -1;
1192
        errno = EINVAL;
1193
        break;
1194

    
1195
    default:
1196
        ret = fcntl(fd, cmd, arg);
1197
        break;
1198
    }
1199
    return ret;
1200
}
1201

    
1202

    
1203
#define high2lowuid(x) (x)
1204
#define high2lowgid(x) (x)
1205
#define low2highuid(x) (x)
1206
#define low2highgid(x) (x)
1207

    
1208
void syscall_init(void)
1209
{
1210
    IOCTLEntry *ie;
1211
    const argtype *arg_type;
1212
    int size;
1213

    
1214
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1215
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1216
#include "syscall_types.h"
1217
#undef STRUCT
1218
#undef STRUCT_SPECIAL
1219

    
1220
    /* we patch the ioctl size if necessary. We rely on the fact that
1221
       no ioctl has all the bits at '1' in the size field */
1222
    ie = ioctl_entries;
1223
    while (ie->target_cmd != 0) {
1224
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1225
            TARGET_IOC_SIZEMASK) {
1226
            arg_type = ie->arg_type;
1227
            if (arg_type[0] != TYPE_PTR) {
1228
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1229
                        ie->target_cmd);
1230
                exit(1);
1231
            }
1232
            arg_type++;
1233
            size = thunk_type_size(arg_type, 0);
1234
            ie->target_cmd = (ie->target_cmd & 
1235
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1236
                (size << TARGET_IOC_SIZESHIFT);
1237
        }
1238
        /* automatic consistency check if same arch */
1239
#if defined(__i386__) && defined(TARGET_I386)
1240
        if (ie->target_cmd != ie->host_cmd) {
1241
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1242
                    ie->target_cmd, ie->host_cmd);
1243
        }
1244
#endif
1245
        ie++;
1246
    }
1247
}
1248
                                 
1249
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1250
                long arg4, long arg5, long arg6)
1251
{
1252
    long ret;
1253
    struct stat st;
1254
    struct kernel_statfs *stfs;
1255
    
1256
#ifdef DEBUG
1257
    gemu_log("syscall %d\n", num);
1258
#endif
1259
    switch(num) {
1260
    case TARGET_NR_exit:
1261
#ifdef HAVE_GPROF
1262
        _mcleanup();
1263
#endif
1264
        /* XXX: should free thread stack and CPU env */
1265
        _exit(arg1);
1266
        ret = 0; /* avoid warning */
1267
        break;
1268
    case TARGET_NR_read:
1269
        page_unprotect_range((void *)arg2, arg3);
1270
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1271
        break;
1272
    case TARGET_NR_write:
1273
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1274
        break;
1275
    case TARGET_NR_open:
1276
        ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1277
        break;
1278
    case TARGET_NR_close:
1279
        ret = get_errno(close(arg1));
1280
        break;
1281
    case TARGET_NR_brk:
1282
        ret = do_brk((char *)arg1);
1283
        break;
1284
    case TARGET_NR_fork:
1285
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1286
        break;
1287
    case TARGET_NR_waitpid:
1288
        {
1289
            int *status = (int *)arg2;
1290
            ret = get_errno(waitpid(arg1, status, arg3));
1291
            if (!is_error(ret) && status)
1292
                tswapls((long *)&status);
1293
        }
1294
        break;
1295
    case TARGET_NR_creat:
1296
        ret = get_errno(creat((const char *)arg1, arg2));
1297
        break;
1298
    case TARGET_NR_link:
1299
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1300
        break;
1301
    case TARGET_NR_unlink:
1302
        ret = get_errno(unlink((const char *)arg1));
1303
        break;
1304
    case TARGET_NR_execve:
1305
        {
1306
            char **argp, **envp;
1307
            int argc, envc;
1308
            uint32_t *p;
1309
            char **q;
1310

    
1311
            argc = 0;
1312
            for (p = (void *)arg2; *p; p++)
1313
                argc++;
1314
            envc = 0;
1315
            for (p = (void *)arg3; *p; p++)
1316
                envc++;
1317

    
1318
            argp = alloca((argc + 1) * sizeof(void *));
1319
            envp = alloca((envc + 1) * sizeof(void *));
1320

    
1321
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1322
                *q = (void *)tswap32(*p);
1323
            *q = NULL;
1324

    
1325
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1326
                *q = (void *)tswap32(*p);
1327
            *q = NULL;
1328

    
1329
            ret = get_errno(execve((const char *)arg1, argp, envp));
1330
        }
1331
        break;
1332
    case TARGET_NR_chdir:
1333
        ret = get_errno(chdir((const char *)arg1));
1334
        break;
1335
    case TARGET_NR_time:
1336
        {
1337
            int *time_ptr = (int *)arg1;
1338
            ret = get_errno(time((time_t *)time_ptr));
1339
            if (!is_error(ret) && time_ptr)
1340
                tswap32s(time_ptr);
1341
        }
1342
        break;
1343
    case TARGET_NR_mknod:
1344
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1345
        break;
1346
    case TARGET_NR_chmod:
1347
        ret = get_errno(chmod((const char *)arg1, arg2));
1348
        break;
1349
    case TARGET_NR_lchown:
1350
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1351
        break;
1352
    case TARGET_NR_break:
1353
        goto unimplemented;
1354
    case TARGET_NR_oldstat:
1355
        goto unimplemented;
1356
    case TARGET_NR_lseek:
1357
        ret = get_errno(lseek(arg1, arg2, arg3));
1358
        break;
1359
    case TARGET_NR_getpid:
1360
        ret = get_errno(getpid());
1361
        break;
1362
    case TARGET_NR_mount:
1363
        /* need to look at the data field */
1364
        goto unimplemented;
1365
    case TARGET_NR_umount:
1366
        ret = get_errno(umount((const char *)arg1));
1367
        break;
1368
    case TARGET_NR_setuid:
1369
        ret = get_errno(setuid(low2highuid(arg1)));
1370
        break;
1371
    case TARGET_NR_getuid:
1372
        ret = get_errno(getuid());
1373
        break;
1374
    case TARGET_NR_stime:
1375
        {
1376
            int *time_ptr = (int *)arg1;
1377
            if (time_ptr)
1378
                tswap32s(time_ptr);
1379
            ret = get_errno(stime((time_t *)time_ptr));
1380
        }
1381
        break;
1382
    case TARGET_NR_ptrace:
1383
        goto unimplemented;
1384
    case TARGET_NR_alarm:
1385
        ret = alarm(arg1);
1386
        break;
1387
    case TARGET_NR_oldfstat:
1388
        goto unimplemented;
1389
    case TARGET_NR_pause:
1390
        ret = get_errno(pause());
1391
        break;
1392
    case TARGET_NR_utime:
1393
        goto unimplemented;
1394
    case TARGET_NR_stty:
1395
        goto unimplemented;
1396
    case TARGET_NR_gtty:
1397
        goto unimplemented;
1398
    case TARGET_NR_access:
1399
        ret = get_errno(access((const char *)arg1, arg2));
1400
        break;
1401
    case TARGET_NR_nice:
1402
        ret = get_errno(nice(arg1));
1403
        break;
1404
    case TARGET_NR_ftime:
1405
        goto unimplemented;
1406
    case TARGET_NR_sync:
1407
        sync();
1408
        ret = 0;
1409
        break;
1410
    case TARGET_NR_kill:
1411
        ret = get_errno(kill(arg1, arg2));
1412
        break;
1413
    case TARGET_NR_rename:
1414
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1415
        break;
1416
    case TARGET_NR_mkdir:
1417
        ret = get_errno(mkdir((const char *)arg1, arg2));
1418
        break;
1419
    case TARGET_NR_rmdir:
1420
        ret = get_errno(rmdir((const char *)arg1));
1421
        break;
1422
    case TARGET_NR_dup:
1423
        ret = get_errno(dup(arg1));
1424
        break;
1425
    case TARGET_NR_pipe:
1426
        {
1427
            int *pipe_ptr = (int *)arg1;
1428
            ret = get_errno(pipe(pipe_ptr));
1429
            if (!is_error(ret)) {
1430
                tswap32s(&pipe_ptr[0]);
1431
                tswap32s(&pipe_ptr[1]);
1432
            }
1433
        }
1434
        break;
1435
    case TARGET_NR_times:
1436
        {
1437
            struct target_tms *tmsp = (void *)arg1;
1438
            struct tms tms;
1439
            ret = get_errno(times(&tms));
1440
            if (tmsp) {
1441
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1442
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1443
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1444
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1445
            }
1446
            if (!is_error(ret))
1447
                ret = host_to_target_clock_t(ret);
1448
        }
1449
        break;
1450
    case TARGET_NR_prof:
1451
        goto unimplemented;
1452
    case TARGET_NR_setgid:
1453
        ret = get_errno(setgid(low2highgid(arg1)));
1454
        break;
1455
    case TARGET_NR_getgid:
1456
        ret = get_errno(getgid());
1457
        break;
1458
    case TARGET_NR_signal:
1459
        goto unimplemented;
1460
    case TARGET_NR_geteuid:
1461
        ret = get_errno(geteuid());
1462
        break;
1463
    case TARGET_NR_getegid:
1464
        ret = get_errno(getegid());
1465
        break;
1466
    case TARGET_NR_acct:
1467
        goto unimplemented;
1468
    case TARGET_NR_umount2:
1469
        ret = get_errno(umount2((const char *)arg1, arg2));
1470
        break;
1471
    case TARGET_NR_lock:
1472
        goto unimplemented;
1473
    case TARGET_NR_ioctl:
1474
        ret = do_ioctl(arg1, arg2, arg3);
1475
        break;
1476
    case TARGET_NR_fcntl:
1477
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
1478
        break;
1479
    case TARGET_NR_mpx:
1480
        goto unimplemented;
1481
    case TARGET_NR_setpgid:
1482
        ret = get_errno(setpgid(arg1, arg2));
1483
        break;
1484
    case TARGET_NR_ulimit:
1485
        goto unimplemented;
1486
    case TARGET_NR_oldolduname:
1487
        goto unimplemented;
1488
    case TARGET_NR_umask:
1489
        ret = get_errno(umask(arg1));
1490
        break;
1491
    case TARGET_NR_chroot:
1492
        ret = get_errno(chroot((const char *)arg1));
1493
        break;
1494
    case TARGET_NR_ustat:
1495
        goto unimplemented;
1496
    case TARGET_NR_dup2:
1497
        ret = get_errno(dup2(arg1, arg2));
1498
        break;
1499
    case TARGET_NR_getppid:
1500
        ret = get_errno(getppid());
1501
        break;
1502
    case TARGET_NR_getpgrp:
1503
        ret = get_errno(getpgrp());
1504
        break;
1505
    case TARGET_NR_setsid:
1506
        ret = get_errno(setsid());
1507
        break;
1508
    case TARGET_NR_sigaction:
1509
        {
1510
            struct target_old_sigaction *old_act = (void *)arg2;
1511
            struct target_old_sigaction *old_oact = (void *)arg3;
1512
            struct target_sigaction act, oact, *pact;
1513
            if (old_act) {
1514
                act._sa_handler = old_act->_sa_handler;
1515
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1516
                act.sa_flags = old_act->sa_flags;
1517
                act.sa_restorer = old_act->sa_restorer;
1518
                pact = &act;
1519
            } else {
1520
                pact = NULL;
1521
            }
1522
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1523
            if (!is_error(ret) && old_oact) {
1524
                old_oact->_sa_handler = oact._sa_handler;
1525
                old_oact->sa_mask = oact.sa_mask.sig[0];
1526
                old_oact->sa_flags = oact.sa_flags;
1527
                old_oact->sa_restorer = oact.sa_restorer;
1528
            }
1529
        }
1530
        break;
1531
    case TARGET_NR_rt_sigaction:
1532
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1533
        break;
1534
    case TARGET_NR_sgetmask:
1535
        {
1536
            sigset_t cur_set;
1537
            target_ulong target_set;
1538
            sigprocmask(0, NULL, &cur_set);
1539
            host_to_target_old_sigset(&target_set, &cur_set);
1540
            ret = target_set;
1541
        }
1542
        break;
1543
    case TARGET_NR_ssetmask:
1544
        {
1545
            sigset_t set, oset, cur_set;
1546
            target_ulong target_set = arg1;
1547
            sigprocmask(0, NULL, &cur_set);
1548
            target_to_host_old_sigset(&set, &target_set);
1549
            sigorset(&set, &set, &cur_set);
1550
            sigprocmask(SIG_SETMASK, &set, &oset);
1551
            host_to_target_old_sigset(&target_set, &oset);
1552
            ret = target_set;
1553
        }
1554
        break;
1555
    case TARGET_NR_sigprocmask:
1556
        {
1557
            int how = arg1;
1558
            sigset_t set, oldset, *set_ptr;
1559
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1560
            
1561
            if (pset) {
1562
                switch(how) {
1563
                case TARGET_SIG_BLOCK:
1564
                    how = SIG_BLOCK;
1565
                    break;
1566
                case TARGET_SIG_UNBLOCK:
1567
                    how = SIG_UNBLOCK;
1568
                    break;
1569
                case TARGET_SIG_SETMASK:
1570
                    how = SIG_SETMASK;
1571
                    break;
1572
                default:
1573
                    ret = -EINVAL;
1574
                    goto fail;
1575
                }
1576
                target_to_host_old_sigset(&set, pset);
1577
                set_ptr = &set;
1578
            } else {
1579
                how = 0;
1580
                set_ptr = NULL;
1581
            }
1582
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1583
            if (!is_error(ret) && poldset) {
1584
                host_to_target_old_sigset(poldset, &oldset);
1585
            }
1586
        }
1587
        break;
1588
    case TARGET_NR_rt_sigprocmask:
1589
        {
1590
            int how = arg1;
1591
            sigset_t set, oldset, *set_ptr;
1592
            target_sigset_t *pset = (void *)arg2;
1593
            target_sigset_t *poldset = (void *)arg3;
1594
            
1595
            if (pset) {
1596
                switch(how) {
1597
                case TARGET_SIG_BLOCK:
1598
                    how = SIG_BLOCK;
1599
                    break;
1600
                case TARGET_SIG_UNBLOCK:
1601
                    how = SIG_UNBLOCK;
1602
                    break;
1603
                case TARGET_SIG_SETMASK:
1604
                    how = SIG_SETMASK;
1605
                    break;
1606
                default:
1607
                    ret = -EINVAL;
1608
                    goto fail;
1609
                }
1610
                target_to_host_sigset(&set, pset);
1611
                set_ptr = &set;
1612
            } else {
1613
                how = 0;
1614
                set_ptr = NULL;
1615
            }
1616
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1617
            if (!is_error(ret) && poldset) {
1618
                host_to_target_sigset(poldset, &oldset);
1619
            }
1620
        }
1621
        break;
1622
    case TARGET_NR_sigpending:
1623
        {
1624
            sigset_t set;
1625
            ret = get_errno(sigpending(&set));
1626
            if (!is_error(ret)) {
1627
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1628
            }
1629
        }
1630
        break;
1631
    case TARGET_NR_rt_sigpending:
1632
        {
1633
            sigset_t set;
1634
            ret = get_errno(sigpending(&set));
1635
            if (!is_error(ret)) {
1636
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1637
            }
1638
        }
1639
        break;
1640
    case TARGET_NR_sigsuspend:
1641
        {
1642
            sigset_t set;
1643
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1644
            ret = get_errno(sigsuspend(&set));
1645
        }
1646
        break;
1647
    case TARGET_NR_rt_sigsuspend:
1648
        {
1649
            sigset_t set;
1650
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1651
            ret = get_errno(sigsuspend(&set));
1652
        }
1653
        break;
1654
    case TARGET_NR_rt_sigtimedwait:
1655
        {
1656
            target_sigset_t *target_set = (void *)arg1;
1657
            target_siginfo_t *target_uinfo = (void *)arg2;
1658
            struct target_timespec *target_uts = (void *)arg3;
1659
            sigset_t set;
1660
            struct timespec uts, *puts;
1661
            siginfo_t uinfo;
1662
            
1663
            target_to_host_sigset(&set, target_set);
1664
            if (target_uts) {
1665
                puts = &uts;
1666
                puts->tv_sec = tswapl(target_uts->tv_sec);
1667
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1668
            } else {
1669
                puts = NULL;
1670
            }
1671
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1672
            if (!is_error(ret) && target_uinfo) {
1673
                host_to_target_siginfo(target_uinfo, &uinfo);
1674
            }
1675
        }
1676
        break;
1677
    case TARGET_NR_rt_sigqueueinfo:
1678
        {
1679
            siginfo_t uinfo;
1680
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1681
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1682
        }
1683
        break;
1684
    case TARGET_NR_sigreturn:
1685
        /* NOTE: ret is eax, so not transcoding must be done */
1686
        ret = do_sigreturn(cpu_env);
1687
        break;
1688
    case TARGET_NR_rt_sigreturn:
1689
        /* NOTE: ret is eax, so not transcoding must be done */
1690
        ret = do_rt_sigreturn(cpu_env);
1691
        break;
1692
    case TARGET_NR_setreuid:
1693
        ret = get_errno(setreuid(arg1, arg2));
1694
        break;
1695
    case TARGET_NR_setregid:
1696
        ret = get_errno(setregid(arg1, arg2));
1697
        break;
1698
    case TARGET_NR_sethostname:
1699
        ret = get_errno(sethostname((const char *)arg1, arg2));
1700
        break;
1701
    case TARGET_NR_setrlimit:
1702
        {
1703
            /* XXX: convert resource ? */
1704
            int resource = arg1;
1705
            struct target_rlimit *target_rlim = (void *)arg2;
1706
            struct rlimit rlim;
1707
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1708
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1709
            ret = get_errno(setrlimit(resource, &rlim));
1710
        }
1711
        break;
1712
    case TARGET_NR_getrlimit:
1713
        {
1714
            /* XXX: convert resource ? */
1715
            int resource = arg1;
1716
            struct target_rlimit *target_rlim = (void *)arg2;
1717
            struct rlimit rlim;
1718
            
1719
            ret = get_errno(getrlimit(resource, &rlim));
1720
            if (!is_error(ret)) {
1721
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1722
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1723
            }
1724
        }
1725
        break;
1726
    case TARGET_NR_getrusage:
1727
        {
1728
            struct rusage rusage;
1729
            struct target_rusage *target_rusage = (void *)arg2;
1730
            ret = get_errno(getrusage(arg1, &rusage));
1731
            if (!is_error(ret)) {
1732
                host_to_target_rusage(target_rusage, &rusage);
1733
            }
1734
        }
1735
        break;
1736
    case TARGET_NR_gettimeofday:
1737
        {
1738
            struct target_timeval *target_tv = (void *)arg1;
1739
            struct timeval tv;
1740
            ret = get_errno(gettimeofday(&tv, NULL));
1741
            if (!is_error(ret)) {
1742
                host_to_target_timeval(target_tv, &tv);
1743
            }
1744
        }
1745
        break;
1746
    case TARGET_NR_settimeofday:
1747
        {
1748
            struct target_timeval *target_tv = (void *)arg1;
1749
            struct timeval tv;
1750
            target_to_host_timeval(&tv, target_tv);
1751
            ret = get_errno(settimeofday(&tv, NULL));
1752
        }
1753
        break;
1754
    case TARGET_NR_getgroups:
1755
        {
1756
            int gidsetsize = arg1;
1757
            uint16_t *target_grouplist = (void *)arg2;
1758
            gid_t *grouplist;
1759
            int i;
1760

    
1761
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1762
            ret = get_errno(getgroups(gidsetsize, grouplist));
1763
            if (!is_error(ret)) {
1764
                for(i = 0;i < gidsetsize; i++)
1765
                    target_grouplist[i] = tswap16(grouplist[i]);
1766
            }
1767
        }
1768
        break;
1769
    case TARGET_NR_setgroups:
1770
        {
1771
            int gidsetsize = arg1;
1772
            uint16_t *target_grouplist = (void *)arg2;
1773
            gid_t *grouplist;
1774
            int i;
1775

    
1776
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1777
            for(i = 0;i < gidsetsize; i++)
1778
                grouplist[i] = tswap16(target_grouplist[i]);
1779
            ret = get_errno(setgroups(gidsetsize, grouplist));
1780
        }
1781
        break;
1782
    case TARGET_NR_select:
1783
        {
1784
            struct target_sel_arg_struct *sel = (void *)arg1;
1785
            sel->n = tswapl(sel->n);
1786
            sel->inp = tswapl(sel->inp);
1787
            sel->outp = tswapl(sel->outp);
1788
            sel->exp = tswapl(sel->exp);
1789
            sel->tvp = tswapl(sel->tvp);
1790
            ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
1791
                            (void *)sel->exp, (void *)sel->tvp);
1792
        }
1793
        break;
1794
    case TARGET_NR_symlink:
1795
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1796
        break;
1797
    case TARGET_NR_oldlstat:
1798
        goto unimplemented;
1799
    case TARGET_NR_readlink:
1800
        ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1801
        break;
1802
    case TARGET_NR_uselib:
1803
        goto unimplemented;
1804
    case TARGET_NR_swapon:
1805
        ret = get_errno(swapon((const char *)arg1, arg2));
1806
        break;
1807
    case TARGET_NR_reboot:
1808
        goto unimplemented;
1809
    case TARGET_NR_readdir:
1810
        goto unimplemented;
1811
    case TARGET_NR_mmap:
1812
#if defined(TARGET_I386) || defined(TARGET_ARM)
1813
        {
1814
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1815
            vptr = (uint32_t *)arg1;
1816
            v1 = tswap32(vptr[0]);
1817
            v2 = tswap32(vptr[1]);
1818
            v3 = tswap32(vptr[2]);
1819
            v4 = tswap32(vptr[3]);
1820
            v5 = tswap32(vptr[4]);
1821
            v6 = tswap32(vptr[5]);
1822
            ret = get_errno(target_mmap(v1, v2, v3, 
1823
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
1824
                                        v5, v6));
1825
        }
1826
#else
1827
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
1828
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
1829
                                    arg5,
1830
                                    arg6));
1831
#endif
1832
        break;
1833
    case TARGET_NR_mmap2:
1834
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
1835
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
1836
                                    arg5,
1837
                                    arg6 << TARGET_PAGE_BITS));
1838
        break;
1839
    case TARGET_NR_munmap:
1840
        ret = get_errno(target_munmap(arg1, arg2));
1841
        break;
1842
    case TARGET_NR_mprotect:
1843
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
1844
        break;
1845
    case TARGET_NR_mremap:
1846
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
1847
        break;
1848
    case TARGET_NR_msync:
1849
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1850
        break;
1851
    case TARGET_NR_mlock:
1852
        ret = get_errno(mlock((void *)arg1, arg2));
1853
        break;
1854
    case TARGET_NR_munlock:
1855
        ret = get_errno(munlock((void *)arg1, arg2));
1856
        break;
1857
    case TARGET_NR_mlockall:
1858
        ret = get_errno(mlockall(arg1));
1859
        break;
1860
    case TARGET_NR_munlockall:
1861
        ret = get_errno(munlockall());
1862
        break;
1863
    case TARGET_NR_truncate:
1864
        ret = get_errno(truncate((const char *)arg1, arg2));
1865
        break;
1866
    case TARGET_NR_ftruncate:
1867
        ret = get_errno(ftruncate(arg1, arg2));
1868
        break;
1869
    case TARGET_NR_fchmod:
1870
        ret = get_errno(fchmod(arg1, arg2));
1871
        break;
1872
    case TARGET_NR_fchown:
1873
        ret = get_errno(fchown(arg1, arg2, arg3));
1874
        break;
1875
    case TARGET_NR_getpriority:
1876
        ret = get_errno(getpriority(arg1, arg2));
1877
        break;
1878
    case TARGET_NR_setpriority:
1879
        ret = get_errno(setpriority(arg1, arg2, arg3));
1880
        break;
1881
    case TARGET_NR_profil:
1882
        goto unimplemented;
1883
    case TARGET_NR_statfs:
1884
        stfs = (void *)arg2;
1885
        ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
1886
    convert_statfs:
1887
        if (!is_error(ret)) {
1888
            tswap32s(&stfs->f_type);
1889
            tswap32s(&stfs->f_bsize);
1890
            tswap32s(&stfs->f_blocks);
1891
            tswap32s(&stfs->f_bfree);
1892
            tswap32s(&stfs->f_bavail);
1893
            tswap32s(&stfs->f_files);
1894
            tswap32s(&stfs->f_ffree);
1895
            tswap32s(&stfs->f_fsid.val[0]);
1896
            tswap32s(&stfs->f_fsid.val[1]);
1897
            tswap32s(&stfs->f_namelen);
1898
        }
1899
        break;
1900
    case TARGET_NR_fstatfs:
1901
        stfs = (void *)arg2;
1902
        ret = get_errno(sys_fstatfs(arg1, stfs));
1903
        goto convert_statfs;
1904
    case TARGET_NR_ioperm:
1905
        goto unimplemented;
1906
    case TARGET_NR_socketcall:
1907
        ret = do_socketcall(arg1, (int32_t *)arg2);
1908
        break;
1909
    case TARGET_NR_syslog:
1910
        goto unimplemented;
1911
    case TARGET_NR_setitimer:
1912
        {
1913
            struct target_itimerval *target_value = (void *)arg2;
1914
            struct target_itimerval *target_ovalue = (void *)arg3;
1915
            struct itimerval value, ovalue, *pvalue;
1916

    
1917
            if (target_value) {
1918
                pvalue = &value;
1919
                target_to_host_timeval(&pvalue->it_interval, 
1920
                                       &target_value->it_interval);
1921
                target_to_host_timeval(&pvalue->it_value, 
1922
                                       &target_value->it_value);
1923
            } else {
1924
                pvalue = NULL;
1925
            }
1926
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1927
            if (!is_error(ret) && target_ovalue) {
1928
                host_to_target_timeval(&target_ovalue->it_interval, 
1929
                                       &ovalue.it_interval);
1930
                host_to_target_timeval(&target_ovalue->it_value, 
1931
                                       &ovalue.it_value);
1932
            }
1933
        }
1934
        break;
1935
    case TARGET_NR_getitimer:
1936
        {
1937
            struct target_itimerval *target_value = (void *)arg2;
1938
            struct itimerval value;
1939
            
1940
            ret = get_errno(getitimer(arg1, &value));
1941
            if (!is_error(ret) && target_value) {
1942
                host_to_target_timeval(&target_value->it_interval, 
1943
                                       &value.it_interval);
1944
                host_to_target_timeval(&target_value->it_value, 
1945
                                       &value.it_value);
1946
            }
1947
        }
1948
        break;
1949
    case TARGET_NR_stat:
1950
        ret = get_errno(stat(path((const char *)arg1), &st));
1951
        goto do_stat;
1952
    case TARGET_NR_lstat:
1953
        ret = get_errno(lstat(path((const char *)arg1), &st));
1954
        goto do_stat;
1955
    case TARGET_NR_fstat:
1956
        {
1957
            ret = get_errno(fstat(arg1, &st));
1958
        do_stat:
1959
            if (!is_error(ret)) {
1960
                struct target_stat *target_st = (void *)arg2;
1961
                target_st->st_dev = tswap16(st.st_dev);
1962
                target_st->st_ino = tswapl(st.st_ino);
1963
                target_st->st_mode = tswap16(st.st_mode);
1964
                target_st->st_nlink = tswap16(st.st_nlink);
1965
                target_st->st_uid = tswap16(st.st_uid);
1966
                target_st->st_gid = tswap16(st.st_gid);
1967
                target_st->st_rdev = tswap16(st.st_rdev);
1968
                target_st->st_size = tswapl(st.st_size);
1969
                target_st->st_blksize = tswapl(st.st_blksize);
1970
                target_st->st_blocks = tswapl(st.st_blocks);
1971
                target_st->target_st_atime = tswapl(st.st_atime);
1972
                target_st->target_st_mtime = tswapl(st.st_mtime);
1973
                target_st->target_st_ctime = tswapl(st.st_ctime);
1974
            }
1975
        }
1976
        break;
1977
    case TARGET_NR_olduname:
1978
        goto unimplemented;
1979
    case TARGET_NR_iopl:
1980
        goto unimplemented;
1981
    case TARGET_NR_vhangup:
1982
        ret = get_errno(vhangup());
1983
        break;
1984
    case TARGET_NR_idle:
1985
        goto unimplemented;
1986
    case TARGET_NR_wait4:
1987
        {
1988
            int status;
1989
            target_long *status_ptr = (void *)arg2;
1990
            struct rusage rusage, *rusage_ptr;
1991
            struct target_rusage *target_rusage = (void *)arg4;
1992
            if (target_rusage)
1993
                rusage_ptr = &rusage;
1994
            else
1995
                rusage_ptr = NULL;
1996
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1997
            if (!is_error(ret)) {
1998
                if (status_ptr)
1999
                    *status_ptr = tswap32(status);
2000
                if (target_rusage) {
2001
                    host_to_target_rusage(target_rusage, &rusage);
2002
                }
2003
            }
2004
        }
2005
        break;
2006
    case TARGET_NR_swapoff:
2007
        ret = get_errno(swapoff((const char *)arg1));
2008
        break;
2009
    case TARGET_NR_sysinfo:
2010
        goto unimplemented;
2011
    case TARGET_NR_ipc:
2012
        goto unimplemented;
2013
    case TARGET_NR_fsync:
2014
        ret = get_errno(fsync(arg1));
2015
        break;
2016
    case TARGET_NR_clone:
2017
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
2018
        break;
2019
#ifdef __NR_exit_group
2020
        /* new thread calls */
2021
    case TARGET_NR_exit_group:
2022
        ret = get_errno(exit_group(arg1));
2023
        break;
2024
#endif
2025
    case TARGET_NR_setdomainname:
2026
        ret = get_errno(setdomainname((const char *)arg1, arg2));
2027
        break;
2028
    case TARGET_NR_uname:
2029
        /* no need to transcode because we use the linux syscall */
2030
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
2031
        break;
2032
#ifdef TARGET_I386
2033
    case TARGET_NR_modify_ldt:
2034
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2035
        break;
2036
    case TARGET_NR_vm86old:
2037
        goto unimplemented;
2038
    case TARGET_NR_vm86:
2039
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
2040
        break;
2041
#endif
2042
    case TARGET_NR_adjtimex:
2043
        goto unimplemented;
2044
    case TARGET_NR_create_module:
2045
    case TARGET_NR_init_module:
2046
    case TARGET_NR_delete_module:
2047
    case TARGET_NR_get_kernel_syms:
2048
        goto unimplemented;
2049
    case TARGET_NR_quotactl:
2050
        goto unimplemented;
2051
    case TARGET_NR_getpgid:
2052
        ret = get_errno(getpgid(arg1));
2053
        break;
2054
    case TARGET_NR_fchdir:
2055
        ret = get_errno(fchdir(arg1));
2056
        break;
2057
    case TARGET_NR_bdflush:
2058
        goto unimplemented;
2059
    case TARGET_NR_sysfs:
2060
        goto unimplemented;
2061
    case TARGET_NR_personality:
2062
        ret = get_errno(personality(arg1));
2063
        break;
2064
    case TARGET_NR_afs_syscall:
2065
        goto unimplemented;
2066
    case TARGET_NR_setfsuid:
2067
        ret = get_errno(setfsuid(arg1));
2068
        break;
2069
    case TARGET_NR_setfsgid:
2070
        ret = get_errno(setfsgid(arg1));
2071
        break;
2072
    case TARGET_NR__llseek:
2073
        {
2074
            int64_t res;
2075
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2076
            *(int64_t *)arg4 = tswap64(res);
2077
        }
2078
        break;
2079
    case TARGET_NR_getdents:
2080
#if TARGET_LONG_SIZE != 4
2081
#error not supported
2082
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2083
        {
2084
            struct target_dirent *target_dirp = (void *)arg2;
2085
            struct dirent *dirp;
2086
            long count = arg3;
2087

    
2088
            dirp = malloc(count);
2089
            if (!dirp)
2090
                return -ENOMEM;
2091
            
2092
            ret = get_errno(sys_getdents(arg1, dirp, count));
2093
            if (!is_error(ret)) {
2094
                struct dirent *de;
2095
                struct target_dirent *tde;
2096
                int len = ret;
2097
                int reclen, treclen;
2098
                int count1, tnamelen;
2099

    
2100
                count1 = 0;
2101
                de = dirp;
2102
                tde = target_dirp;
2103
                while (len > 0) {
2104
                    reclen = de->d_reclen;
2105
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2106
                    tde->d_reclen = tswap16(treclen);
2107
                    tde->d_ino = tswapl(de->d_ino);
2108
                    tde->d_off = tswapl(de->d_off);
2109
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
2110
                    if (tnamelen > 256)
2111
                        tnamelen = 256;
2112
                    strncpy(tde->d_name, de->d_name, tnamelen);
2113
                    de = (struct dirent *)((char *)de + reclen);
2114
                    len -= reclen;
2115
                    tde = (struct dirent *)((char *)tde + treclen);
2116
                    count1 += treclen;
2117
                }
2118
                ret = count1;
2119
            }
2120
            free(dirp);
2121
        }
2122
#else
2123
        {
2124
            struct dirent *dirp = (void *)arg2;
2125
            long count = arg3;
2126

    
2127
            ret = get_errno(sys_getdents(arg1, dirp, count));
2128
            if (!is_error(ret)) {
2129
                struct dirent *de;
2130
                int len = ret;
2131
                int reclen;
2132
                de = dirp;
2133
                while (len > 0) {
2134
                    reclen = de->d_reclen;
2135
                    if (reclen > len)
2136
                        break;
2137
                    de->d_reclen = tswap16(reclen);
2138
                    tswapls(&de->d_ino);
2139
                    tswapls(&de->d_off);
2140
                    de = (struct dirent *)((char *)de + reclen);
2141
                    len -= reclen;
2142
                }
2143
            }
2144
        }
2145
#endif
2146
        break;
2147
    case TARGET_NR_getdents64:
2148
        {
2149
            struct dirent64 *dirp = (void *)arg2;
2150
            long count = arg3;
2151
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2152
            if (!is_error(ret)) {
2153
                struct dirent64 *de;
2154
                int len = ret;
2155
                int reclen;
2156
                de = dirp;
2157
                while (len > 0) {
2158
                    reclen = de->d_reclen;
2159
                    if (reclen > len)
2160
                        break;
2161
                    de->d_reclen = tswap16(reclen);
2162
                    tswap64s(&de->d_ino);
2163
                    tswap64s(&de->d_off);
2164
                    de = (struct dirent64 *)((char *)de + reclen);
2165
                    len -= reclen;
2166
                }
2167
            }
2168
        }
2169
        break;
2170
    case TARGET_NR__newselect:
2171
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2172
                        (void *)arg5);
2173
        break;
2174
    case TARGET_NR_poll:
2175
        {
2176
            struct target_pollfd *target_pfd = (void *)arg1;
2177
            unsigned int nfds = arg2;
2178
            int timeout = arg3;
2179
            struct pollfd *pfd;
2180
            unsigned int i;
2181

    
2182
            pfd = alloca(sizeof(struct pollfd) * nfds);
2183
            for(i = 0; i < nfds; i++) {
2184
                pfd[i].fd = tswap32(target_pfd[i].fd);
2185
                pfd[i].events = tswap16(target_pfd[i].events);
2186
            }
2187
            ret = get_errno(poll(pfd, nfds, timeout));
2188
            if (!is_error(ret)) {
2189
                for(i = 0; i < nfds; i++) {
2190
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2191
                }
2192
            }
2193
        }
2194
        break;
2195
    case TARGET_NR_flock:
2196
        /* NOTE: the flock constant seems to be the same for every
2197
           Linux platform */
2198
        ret = get_errno(flock(arg1, arg2));
2199
        break;
2200
    case TARGET_NR_readv:
2201
        {
2202
            int count = arg3;
2203
            int i;
2204
            struct iovec *vec;
2205
            struct target_iovec *target_vec = (void *)arg2;
2206

    
2207
            vec = alloca(count * sizeof(struct iovec));
2208
            for(i = 0;i < count; i++) {
2209
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2210
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2211
            }
2212
            ret = get_errno(readv(arg1, vec, count));
2213
        }
2214
        break;
2215
    case TARGET_NR_writev:
2216
        {
2217
            int count = arg3;
2218
            int i;
2219
            struct iovec *vec;
2220
            struct target_iovec *target_vec = (void *)arg2;
2221

    
2222
            vec = alloca(count * sizeof(struct iovec));
2223
            for(i = 0;i < count; i++) {
2224
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2225
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2226
            }
2227
            ret = get_errno(writev(arg1, vec, count));
2228
        }
2229
        break;
2230
    case TARGET_NR_getsid:
2231
        ret = get_errno(getsid(arg1));
2232
        break;
2233
    case TARGET_NR_fdatasync:
2234
        ret = get_errno(fdatasync(arg1));
2235
        break;
2236
    case TARGET_NR__sysctl:
2237
        goto unimplemented;
2238
    case TARGET_NR_sched_setparam:
2239
        {
2240
            struct sched_param *target_schp = (void *)arg2;
2241
            struct sched_param schp;
2242
            schp.sched_priority = tswap32(target_schp->sched_priority);
2243
            ret = get_errno(sched_setparam(arg1, &schp));
2244
        }
2245
        break;
2246
    case TARGET_NR_sched_getparam:
2247
        {
2248
            struct sched_param *target_schp = (void *)arg2;
2249
            struct sched_param schp;
2250
            ret = get_errno(sched_getparam(arg1, &schp));
2251
            if (!is_error(ret)) {
2252
                target_schp->sched_priority = tswap32(schp.sched_priority);
2253
            }
2254
        }
2255
        break;
2256
    case TARGET_NR_sched_setscheduler:
2257
        {
2258
            struct sched_param *target_schp = (void *)arg3;
2259
            struct sched_param schp;
2260
            schp.sched_priority = tswap32(target_schp->sched_priority);
2261
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2262
        }
2263
        break;
2264
    case TARGET_NR_sched_getscheduler:
2265
        ret = get_errno(sched_getscheduler(arg1));
2266
        break;
2267
    case TARGET_NR_sched_yield:
2268
        ret = get_errno(sched_yield());
2269
        break;
2270
    case TARGET_NR_sched_get_priority_max:
2271
        ret = get_errno(sched_get_priority_max(arg1));
2272
        break;
2273
    case TARGET_NR_sched_get_priority_min:
2274
        ret = get_errno(sched_get_priority_min(arg1));
2275
        break;
2276
    case TARGET_NR_sched_rr_get_interval:
2277
        {
2278
            struct target_timespec *target_ts = (void *)arg2;
2279
            struct timespec ts;
2280
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2281
            if (!is_error(ret)) {
2282
                target_ts->tv_sec = tswapl(ts.tv_sec);
2283
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2284
            }
2285
        }
2286
        break;
2287
    case TARGET_NR_nanosleep:
2288
        {
2289
            struct target_timespec *target_req = (void *)arg1;
2290
            struct target_timespec *target_rem = (void *)arg2;
2291
            struct timespec req, rem;
2292
            req.tv_sec = tswapl(target_req->tv_sec);
2293
            req.tv_nsec = tswapl(target_req->tv_nsec);
2294
            ret = get_errno(nanosleep(&req, &rem));
2295
            if (target_rem) {
2296
                target_rem->tv_sec = tswapl(rem.tv_sec);
2297
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2298
            }
2299
        }
2300
        break;
2301
    case TARGET_NR_setresuid:
2302
        ret = get_errno(setresuid(low2highuid(arg1), 
2303
                                  low2highuid(arg2), 
2304
                                  low2highuid(arg3)));
2305
        break;
2306
    case TARGET_NR_getresuid:
2307
        {
2308
            int ruid, euid, suid;
2309
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2310
            if (!is_error(ret)) {
2311
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2312
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2313
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2314
            }
2315
        }
2316
        break;
2317
    case TARGET_NR_setresgid:
2318
        ret = get_errno(setresgid(low2highgid(arg1), 
2319
                                  low2highgid(arg2), 
2320
                                  low2highgid(arg3)));
2321
        break;
2322
    case TARGET_NR_getresgid:
2323
        {
2324
            int rgid, egid, sgid;
2325
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2326
            if (!is_error(ret)) {
2327
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2328
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2329
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2330
            }
2331
        }
2332
        break;
2333
    case TARGET_NR_query_module:
2334
        goto unimplemented;
2335
    case TARGET_NR_nfsservctl:
2336
        goto unimplemented;
2337
    case TARGET_NR_prctl:
2338
        goto unimplemented;
2339
    case TARGET_NR_pread:
2340
        page_unprotect_range((void *)arg2, arg3);
2341
        ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2342
        break;
2343
    case TARGET_NR_pwrite:
2344
        ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2345
        break;
2346
    case TARGET_NR_chown:
2347
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2348
        break;
2349
    case TARGET_NR_getcwd:
2350
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2351
        break;
2352
    case TARGET_NR_capget:
2353
        goto unimplemented;
2354
    case TARGET_NR_capset:
2355
        goto unimplemented;
2356
    case TARGET_NR_sigaltstack:
2357
        goto unimplemented;
2358
    case TARGET_NR_sendfile:
2359
        goto unimplemented;
2360
    case TARGET_NR_getpmsg:
2361
        goto unimplemented;
2362
    case TARGET_NR_putpmsg:
2363
        goto unimplemented;
2364
    case TARGET_NR_vfork:
2365
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2366
        break;
2367
    case TARGET_NR_ugetrlimit:
2368
    {
2369
        struct rlimit rlim;
2370
        ret = get_errno(getrlimit(arg1, &rlim));
2371
        if (!is_error(ret)) {
2372
            struct target_rlimit *target_rlim = (void *)arg2;
2373
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2374
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
2375
        }
2376
        break;
2377
    }
2378
    case TARGET_NR_truncate64:
2379
        goto unimplemented;
2380
    case TARGET_NR_ftruncate64:
2381
        goto unimplemented;
2382
    case TARGET_NR_stat64:
2383
        ret = get_errno(stat(path((const char *)arg1), &st));
2384
        goto do_stat64;
2385
    case TARGET_NR_lstat64:
2386
        ret = get_errno(lstat(path((const char *)arg1), &st));
2387
        goto do_stat64;
2388
    case TARGET_NR_fstat64:
2389
        {
2390
            ret = get_errno(fstat(arg1, &st));
2391
        do_stat64:
2392
            if (!is_error(ret)) {
2393
                struct target_stat64 *target_st = (void *)arg2;
2394
                memset(target_st, 0, sizeof(struct target_stat64));
2395
                target_st->st_dev = tswap16(st.st_dev);
2396
                target_st->st_ino = tswap64(st.st_ino);
2397
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2398
                target_st->__st_ino = tswapl(st.st_ino);
2399
#endif
2400
                target_st->st_mode = tswap32(st.st_mode);
2401
                target_st->st_nlink = tswap32(st.st_nlink);
2402
                target_st->st_uid = tswapl(st.st_uid);
2403
                target_st->st_gid = tswapl(st.st_gid);
2404
                target_st->st_rdev = tswap16(st.st_rdev);
2405
                /* XXX: better use of kernel struct */
2406
                target_st->st_size = tswap64(st.st_size);
2407
                target_st->st_blksize = tswapl(st.st_blksize);
2408
                target_st->st_blocks = tswapl(st.st_blocks);
2409
                target_st->target_st_atime = tswapl(st.st_atime);
2410
                target_st->target_st_mtime = tswapl(st.st_mtime);
2411
                target_st->target_st_ctime = tswapl(st.st_ctime);
2412
            }
2413
        }
2414
        break;
2415

    
2416
    case TARGET_NR_lchown32:
2417
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2418
        break;
2419
    case TARGET_NR_getuid32:
2420
        ret = get_errno(getuid());
2421
        break;
2422
    case TARGET_NR_getgid32:
2423
        ret = get_errno(getgid());
2424
        break;
2425
    case TARGET_NR_geteuid32:
2426
        ret = get_errno(geteuid());
2427
        break;
2428
    case TARGET_NR_getegid32:
2429
        ret = get_errno(getegid());
2430
        break;
2431
    case TARGET_NR_setreuid32:
2432
        ret = get_errno(setreuid(arg1, arg2));
2433
        break;
2434
    case TARGET_NR_setregid32:
2435
        ret = get_errno(setregid(arg1, arg2));
2436
        break;
2437
    case TARGET_NR_getgroups32:
2438
        goto unimplemented;
2439
    case TARGET_NR_setgroups32:
2440
        goto unimplemented;
2441
    case TARGET_NR_fchown32:
2442
        ret = get_errno(fchown(arg1, arg2, arg3));
2443
        break;
2444
    case TARGET_NR_setresuid32:
2445
        ret = get_errno(setresuid(arg1, arg2, arg3));
2446
        break;
2447
    case TARGET_NR_getresuid32:
2448
        {
2449
            int ruid, euid, suid;
2450
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2451
            if (!is_error(ret)) {
2452
                *(uint32_t *)arg1 = tswap32(ruid);
2453
                *(uint32_t *)arg2 = tswap32(euid);
2454
                *(uint32_t *)arg3 = tswap32(suid);
2455
            }
2456
        }
2457
        break;
2458
    case TARGET_NR_setresgid32:
2459
        ret = get_errno(setresgid(arg1, arg2, arg3));
2460
        break;
2461
    case TARGET_NR_getresgid32:
2462
        {
2463
            int rgid, egid, sgid;
2464
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2465
            if (!is_error(ret)) {
2466
                *(uint32_t *)arg1 = tswap32(rgid);
2467
                *(uint32_t *)arg2 = tswap32(egid);
2468
                *(uint32_t *)arg3 = tswap32(sgid);
2469
            }
2470
        }
2471
        break;
2472
    case TARGET_NR_chown32:
2473
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2474
        break;
2475
    case TARGET_NR_setuid32:
2476
        ret = get_errno(setuid(arg1));
2477
        break;
2478
    case TARGET_NR_setgid32:
2479
        ret = get_errno(setgid(arg1));
2480
        break;
2481
    case TARGET_NR_setfsuid32:
2482
        ret = get_errno(setfsuid(arg1));
2483
        break;
2484
    case TARGET_NR_setfsgid32:
2485
        ret = get_errno(setfsgid(arg1));
2486
        break;
2487
    case TARGET_NR_pivot_root:
2488
        goto unimplemented;
2489
    case TARGET_NR_mincore:
2490
        goto unimplemented;
2491
    case TARGET_NR_madvise:
2492
        goto unimplemented;
2493
#if TARGET_LONG_BITS == 32
2494
    case TARGET_NR_fcntl64:
2495
    {
2496
        struct flock64 fl;
2497
        struct target_flock64 *target_fl = (void *)arg3;
2498

    
2499
        switch(arg2) {
2500
        case F_GETLK64:
2501
            ret = get_errno(fcntl(arg1, arg2, &fl));
2502
            if (ret == 0) {
2503
                target_fl->l_type = tswap16(fl.l_type);
2504
                target_fl->l_whence = tswap16(fl.l_whence);
2505
                target_fl->l_start = tswap64(fl.l_start);
2506
                target_fl->l_len = tswap64(fl.l_len);
2507
                target_fl->l_pid = tswapl(fl.l_pid);
2508
            }
2509
            break;
2510

    
2511
        case F_SETLK64:
2512
        case F_SETLKW64:
2513
            fl.l_type = tswap16(target_fl->l_type);
2514
            fl.l_whence = tswap16(target_fl->l_whence);
2515
            fl.l_start = tswap64(target_fl->l_start);
2516
            fl.l_len = tswap64(target_fl->l_len);
2517
            fl.l_pid = tswapl(target_fl->l_pid);
2518
            ret = get_errno(fcntl(arg1, arg2, &fl));
2519
            break;
2520
        default:
2521
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
2522
            break;
2523
        }
2524
        break;
2525
    }
2526
#endif
2527
    case TARGET_NR_security:
2528
        goto unimplemented;
2529
    case TARGET_NR_gettid:
2530
        ret = get_errno(gettid());
2531
        break;
2532
    case TARGET_NR_readahead:
2533
        goto unimplemented;
2534
    case TARGET_NR_setxattr:
2535
    case TARGET_NR_lsetxattr:
2536
    case TARGET_NR_fsetxattr:
2537
    case TARGET_NR_getxattr:
2538
    case TARGET_NR_lgetxattr:
2539
    case TARGET_NR_fgetxattr:
2540
    case TARGET_NR_listxattr:
2541
    case TARGET_NR_llistxattr:
2542
    case TARGET_NR_flistxattr:
2543
    case TARGET_NR_removexattr:
2544
    case TARGET_NR_lremovexattr:
2545
    case TARGET_NR_fremovexattr:
2546
        goto unimplemented_nowarn;
2547
    case TARGET_NR_set_thread_area:
2548
    case TARGET_NR_get_thread_area:
2549
        goto unimplemented_nowarn;
2550
    default:
2551
    unimplemented:
2552
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2553
    unimplemented_nowarn:
2554
        ret = -ENOSYS;
2555
        break;
2556
    }
2557
 fail:
2558
    return ret;
2559
}
2560