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1
/*
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 *  Linux syscalls
3
 * 
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
6
 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (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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 */
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#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>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/resource.h>
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#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
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#include <sched.h>
40
#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/times.h>
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//#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>
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#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])
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#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
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#define __NR_sys_fstatfs __NR_fstatfs
75
#define __NR_sys_getdents __NR_getdents
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#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
static inline void host_to_target_rusage(struct target_rusage *target_rusage, 
214
                                         const struct rusage *rusage)
215
{
216
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
217
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
218
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
219
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
220
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
221
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
222
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
223
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
224
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
225
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
226
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
227
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
228
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
229
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
230
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
231
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
232
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
233
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
234
}
235

    
236
static inline void target_to_host_timeval(struct timeval *tv, 
237
                                          const struct target_timeval *target_tv)
238
{
239
    tv->tv_sec = tswapl(target_tv->tv_sec);
240
    tv->tv_usec = tswapl(target_tv->tv_usec);
241
}
242

    
243
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
244
                                          const struct timeval *tv)
245
{
246
    target_tv->tv_sec = tswapl(tv->tv_sec);
247
    target_tv->tv_usec = tswapl(tv->tv_usec);
248
}
249

    
250

    
251
static long do_select(long n, 
252
                      target_long *target_rfds, target_long *target_wfds, 
253
                      target_long *target_efds, struct target_timeval *target_tv)
254
{
255
    fd_set rfds, wfds, efds;
256
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
257
    struct timeval tv, *tv_ptr;
258
    long ret;
259

    
260
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
261
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
262
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
263
            
264
    if (target_tv) {
265
        target_to_host_timeval(&tv, target_tv);
266
        tv_ptr = &tv;
267
    } else {
268
        tv_ptr = NULL;
269
    }
270
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
271
    if (!is_error(ret)) {
272
        host_to_target_fds(target_rfds, rfds_ptr, n);
273
        host_to_target_fds(target_wfds, wfds_ptr, n);
274
        host_to_target_fds(target_efds, efds_ptr, n);
275

    
276
        if (target_tv) {
277
            host_to_target_timeval(target_tv, &tv);
278
        }
279
    }
280
    return ret;
281
}
282

    
283
static inline void target_to_host_sockaddr(struct sockaddr *addr,
284
                                           struct target_sockaddr *target_addr,
285
                                           socklen_t len)
286
{
287
    memcpy(addr, target_addr, len);
288
    addr->sa_family = tswap16(target_addr->sa_family);
289
}
290

    
291
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
292
                                           struct sockaddr *addr,
293
                                           socklen_t len)
294
{
295
    memcpy(target_addr, addr, len);
296
    target_addr->sa_family = tswap16(addr->sa_family);
297
}
298

    
299
static inline void target_to_host_cmsg(struct msghdr *msgh,
300
                                       struct target_msghdr *target_msgh)
301
{
302
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
303
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
304
    socklen_t space = 0;
305

    
306
    while (cmsg && target_cmsg) {
307
        void *data = CMSG_DATA(cmsg);
308
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
309

    
310
        int len = tswapl(target_cmsg->cmsg_len) 
311
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
312

    
313
        space += CMSG_SPACE(len);
314
        if (space > msgh->msg_controllen) {
315
            space -= CMSG_SPACE(len);
316
            gemu_log("Host cmsg overflow");
317
            break;
318
        }
319

    
320
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
321
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
322
        cmsg->cmsg_len = CMSG_LEN(len);
323

    
324
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
325
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
326
            memcpy(data, target_data, len);
327
        } else {
328
            int *fd = (int *)data;
329
            int *target_fd = (int *)target_data;
330
            int i, numfds = len / sizeof(int);
331

    
332
            for (i = 0; i < numfds; i++)
333
                fd[i] = tswap32(target_fd[i]);
334
        }
335

    
336
        cmsg = CMSG_NXTHDR(msgh, cmsg);
337
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
338
    }
339

    
340
    msgh->msg_controllen = space;
341
}
342

    
343
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
344
                                       struct msghdr *msgh)
345
{
346
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
347
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
348
    socklen_t space = 0;
349

    
350
    while (cmsg && target_cmsg) {
351
        void *data = CMSG_DATA(cmsg);
352
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
353

    
354
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
355

    
356
        space += TARGET_CMSG_SPACE(len);
357
        if (space > tswapl(target_msgh->msg_controllen)) {
358
            space -= TARGET_CMSG_SPACE(len);
359
            gemu_log("Target cmsg overflow");
360
            break;
361
        }
362

    
363
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
364
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
365
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
366

    
367
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
368
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
369
            memcpy(target_data, data, len);
370
        } else {
371
            int *fd = (int *)data;
372
            int *target_fd = (int *)target_data;
373
            int i, numfds = len / sizeof(int);
374

    
375
            for (i = 0; i < numfds; i++)
376
                target_fd[i] = tswap32(fd[i]);
377
        }
378

    
379
        cmsg = CMSG_NXTHDR(msgh, cmsg);
380
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
381
    }
382

    
383
    msgh->msg_controllen = tswapl(space);
384
}
385

    
386
static long do_setsockopt(int sockfd, int level, int optname, 
387
                          void *optval, socklen_t optlen)
388
{
389
    if (level == SOL_TCP) {
390
        /* TCP options all take an 'int' value.  */
391
        int val;
392

    
393
        if (optlen < sizeof(uint32_t))
394
            return -EINVAL;
395

    
396
        val = tswap32(*(uint32_t *)optval);
397
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
398
    }
399

    
400
    else if (level != SOL_SOCKET) {
401
        gemu_log("Unsupported setsockopt level: %d\n", level);
402
        return -ENOSYS;
403
    }
404

    
405
    switch (optname) {
406
    /* Options with 'int' argument.  */
407
    case SO_DEBUG:
408
    case SO_REUSEADDR:
409
    case SO_TYPE:
410
    case SO_ERROR:
411
    case SO_DONTROUTE:
412
    case SO_BROADCAST:
413
    case SO_SNDBUF:
414
    case SO_RCVBUF:
415
    case SO_KEEPALIVE:
416
    case SO_OOBINLINE:
417
    case SO_NO_CHECK:
418
    case SO_PRIORITY:
419
    case SO_BSDCOMPAT:
420
    case SO_PASSCRED:
421
    case SO_TIMESTAMP:
422
    case SO_RCVLOWAT:
423
    case SO_RCVTIMEO:
424
    case SO_SNDTIMEO:
425
    {
426
        int val;
427
        if (optlen < sizeof(uint32_t))
428
            return -EINVAL;
429
        val = tswap32(*(uint32_t *)optval);
430
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
431
    }
432

    
433
    default:
434
        gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
435
        return -ENOSYS;
436
    }
437
}
438

    
439
static long do_getsockopt(int sockfd, int level, int optname, 
440
                          void *optval, socklen_t *optlen)
441
{
442
    gemu_log("getsockopt not yet supported\n");
443
    return -ENOSYS;
444
}
445

    
446
static long do_socketcall(int num, int32_t *vptr)
447
{
448
    long ret;
449

    
450
    switch(num) {
451
    case SOCKOP_socket:
452
        {
453
            int domain = tswap32(vptr[0]);
454
            int type = tswap32(vptr[1]);
455
            int protocol = tswap32(vptr[2]);
456

    
457
            ret = get_errno(socket(domain, type, protocol));
458
        }
459
        break;
460
    case SOCKOP_bind:
461
        {
462
            int sockfd = tswap32(vptr[0]);
463
            void *target_addr = (void *)tswap32(vptr[1]);
464
            socklen_t addrlen = tswap32(vptr[2]);
465
            void *addr = alloca(addrlen);
466

    
467
            target_to_host_sockaddr(addr, target_addr, addrlen);
468
            ret = get_errno(bind(sockfd, addr, addrlen));
469
        }
470
        break;
471
    case SOCKOP_connect:
472
        {
473
            int sockfd = tswap32(vptr[0]);
474
            void *target_addr = (void *)tswap32(vptr[1]);
475
            socklen_t addrlen = tswap32(vptr[2]);
476
            void *addr = alloca(addrlen);
477

    
478
            target_to_host_sockaddr(addr, target_addr, addrlen);
479
            ret = get_errno(connect(sockfd, addr, addrlen));
480
        }
481
        break;
482
    case SOCKOP_listen:
483
        {
484
            int sockfd = tswap32(vptr[0]);
485
            int backlog = tswap32(vptr[1]);
486

    
487
            ret = get_errno(listen(sockfd, backlog));
488
        }
489
        break;
490
    case SOCKOP_accept:
491
        {
492
            int sockfd = tswap32(vptr[0]);
493
            void *target_addr = (void *)tswap32(vptr[1]);
494
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
495
            socklen_t addrlen = tswap32(*target_addrlen);
496
            void *addr = alloca(addrlen);
497

    
498
            ret = get_errno(accept(sockfd, addr, &addrlen));
499
            if (!is_error(ret)) {
500
                host_to_target_sockaddr(target_addr, addr, addrlen);
501
                *target_addrlen = tswap32(addrlen);
502
            }
503
        }
504
        break;
505
    case SOCKOP_getsockname:
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(getsockname(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_getpeername:
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(getpeername(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_socketpair:
536
        {
537
            int domain = tswap32(vptr[0]);
538
            int type = tswap32(vptr[1]);
539
            int protocol = tswap32(vptr[2]);
540
            int32_t *target_tab = (void *)tswap32(vptr[3]);
541
            int tab[2];
542

    
543
            ret = get_errno(socketpair(domain, type, protocol, tab));
544
            if (!is_error(ret)) {
545
                target_tab[0] = tswap32(tab[0]);
546
                target_tab[1] = tswap32(tab[1]);
547
            }
548
        }
549
        break;
550
    case SOCKOP_send:
551
        {
552
            int sockfd = tswap32(vptr[0]);
553
            void *msg = (void *)tswap32(vptr[1]);
554
            size_t len = tswap32(vptr[2]);
555
            int flags = tswap32(vptr[3]);
556

    
557
            ret = get_errno(send(sockfd, msg, len, flags));
558
        }
559
        break;
560
    case SOCKOP_recv:
561
        {
562
            int sockfd = tswap32(vptr[0]);
563
            void *msg = (void *)tswap32(vptr[1]);
564
            size_t len = tswap32(vptr[2]);
565
            int flags = tswap32(vptr[3]);
566

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

    
580
            target_to_host_sockaddr(addr, target_addr, addrlen);
581
            ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
582
        }
583
        break;
584
    case SOCKOP_recvfrom:
585
        {
586
            int sockfd = tswap32(vptr[0]);
587
            void *msg = (void *)tswap32(vptr[1]);
588
            size_t len = tswap32(vptr[2]);
589
            int flags = tswap32(vptr[3]);
590
            void *target_addr = (void *)tswap32(vptr[4]);
591
            uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
592
            socklen_t addrlen = tswap32(*target_addrlen);
593
            void *addr = alloca(addrlen);
594

    
595
            ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
596
            if (!is_error(ret)) {
597
                host_to_target_sockaddr(target_addr, addr, addrlen);
598
                *target_addrlen = tswap32(addrlen);
599
            }
600
        }
601
        break;
602
    case SOCKOP_shutdown:
603
        {
604
            int sockfd = tswap32(vptr[0]);
605
            int how = tswap32(vptr[1]);
606

    
607
            ret = get_errno(shutdown(sockfd, how));
608
        }
609
        break;
610
    case SOCKOP_sendmsg:
611
    case SOCKOP_recvmsg:
612
        {
613
            int fd;
614
            struct target_msghdr *msgp;
615
            struct msghdr msg;
616
            int flags, count, i;
617
            struct iovec *vec;
618
            struct target_iovec *target_vec;
619

    
620
            msgp = (void *)tswap32(vptr[1]);
621
            msg.msg_name = (void *)tswapl(msgp->msg_name);
622
            msg.msg_namelen = tswapl(msgp->msg_namelen);
623
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
624
            msg.msg_control = alloca(msg.msg_controllen);
625
            msg.msg_flags = tswap32(msgp->msg_flags);
626

    
627
            count = tswapl(msgp->msg_iovlen);
628
            vec = alloca(count * sizeof(struct iovec));
629
            target_vec = (void *)tswapl(msgp->msg_iov);
630
            for(i = 0;i < count; i++) {
631
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
632
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
633
            }
634
            msg.msg_iovlen = count;
635
            msg.msg_iov = vec;
636

    
637
            fd = tswap32(vptr[0]);
638
            flags = tswap32(vptr[2]);
639
            if (num == SOCKOP_sendmsg) {
640
                target_to_host_cmsg(&msg, msgp);
641
                ret = get_errno(sendmsg(fd, &msg, flags));
642
            } else {
643
                ret = get_errno(recvmsg(fd, &msg, flags));
644
                if (!is_error(ret))
645
                  host_to_target_cmsg(msgp, &msg);
646
            }
647
        }
648
        break;
649
    case SOCKOP_setsockopt:
650
        {
651
            int sockfd = tswap32(vptr[0]);
652
            int level = tswap32(vptr[1]);
653
            int optname = tswap32(vptr[2]);
654
            void *optval = (void *)tswap32(vptr[3]);
655
            socklen_t optlen = tswap32(vptr[4]);
656

    
657
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
658
        }
659
        break;
660
    case SOCKOP_getsockopt:
661
        {
662
            int sockfd = tswap32(vptr[0]);
663
            int level = tswap32(vptr[1]);
664
            int optname = tswap32(vptr[2]);
665
            void *optval = (void *)tswap32(vptr[3]);
666
            uint32_t *target_len = (void *)tswap32(vptr[4]);
667
            socklen_t optlen = tswap32(*target_len);
668

    
669
            ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
670
            if (!is_error(ret))
671
                *target_len = tswap32(optlen);
672
        }
673
        break;
674
    default:
675
        gemu_log("Unsupported socketcall: %d\n", num);
676
        ret = -ENOSYS;
677
        break;
678
    }
679
    return ret;
680
}
681

    
682
/* kernel structure types definitions */
683
#define IFNAMSIZ        16
684

    
685
#define STRUCT(name, list...) STRUCT_ ## name,
686
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
687
enum {
688
#include "syscall_types.h"
689
};
690
#undef STRUCT
691
#undef STRUCT_SPECIAL
692

    
693
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
694
#define STRUCT_SPECIAL(name)
695
#include "syscall_types.h"
696
#undef STRUCT
697
#undef STRUCT_SPECIAL
698

    
699
typedef struct IOCTLEntry {
700
    unsigned int target_cmd;
701
    unsigned int host_cmd;
702
    const char *name;
703
    int access;
704
    const argtype arg_type[5];
705
} IOCTLEntry;
706

    
707
#define IOC_R 0x0001
708
#define IOC_W 0x0002
709
#define IOC_RW (IOC_R | IOC_W)
710

    
711
#define MAX_STRUCT_SIZE 4096
712

    
713
IOCTLEntry ioctl_entries[] = {
714
#define IOCTL(cmd, access, types...) \
715
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
716
#include "ioctls.h"
717
    { 0, 0, },
718
};
719

    
720
static long do_ioctl(long fd, long cmd, long arg)
721
{
722
    const IOCTLEntry *ie;
723
    const argtype *arg_type;
724
    long ret;
725
    uint8_t buf_temp[MAX_STRUCT_SIZE];
726

    
727
    ie = ioctl_entries;
728
    for(;;) {
729
        if (ie->target_cmd == 0) {
730
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
731
            return -ENOSYS;
732
        }
733
        if (ie->target_cmd == cmd)
734
            break;
735
        ie++;
736
    }
737
    arg_type = ie->arg_type;
738
#if defined(DEBUG)
739
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
740
#endif
741
    switch(arg_type[0]) {
742
    case TYPE_NULL:
743
        /* no argument */
744
        ret = get_errno(ioctl(fd, ie->host_cmd));
745
        break;
746
    case TYPE_PTRVOID:
747
    case TYPE_INT:
748
        /* int argment */
749
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
750
        break;
751
    case TYPE_PTR:
752
        arg_type++;
753
        switch(ie->access) {
754
        case IOC_R:
755
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
756
            if (!is_error(ret)) {
757
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
758
            }
759
            break;
760
        case IOC_W:
761
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
762
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
763
            break;
764
        default:
765
        case IOC_RW:
766
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
767
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
768
            if (!is_error(ret)) {
769
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
770
            }
771
            break;
772
        }
773
        break;
774
    default:
775
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
776
        ret = -ENOSYS;
777
        break;
778
    }
779
    return ret;
780
}
781

    
782
bitmask_transtbl iflag_tbl[] = {
783
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
784
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
785
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
786
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
787
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
788
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
789
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
790
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
791
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
792
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
793
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
794
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
795
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
796
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
797
        { 0, 0, 0, 0 }
798
};
799

    
800
bitmask_transtbl oflag_tbl[] = {
801
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
802
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
803
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
804
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
805
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
806
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
807
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
808
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
809
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
810
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
811
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
812
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
813
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
814
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
815
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
816
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
817
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
818
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
819
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
820
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
821
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
822
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
823
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
824
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
825
        { 0, 0, 0, 0 }
826
};
827

    
828
bitmask_transtbl cflag_tbl[] = {
829
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
830
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
831
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
832
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
833
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
834
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
835
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
836
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
837
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
838
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
839
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
840
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
841
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
842
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
843
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
844
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
845
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
846
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
847
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
848
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
849
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
850
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
851
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
852
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
853
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
854
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
855
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
856
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
857
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
858
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
859
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
860
        { 0, 0, 0, 0 }
861
};
862

    
863
bitmask_transtbl lflag_tbl[] = {
864
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
865
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
866
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
867
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
868
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
869
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
870
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
871
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
872
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
873
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
874
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
875
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
876
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
877
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
878
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
879
        { 0, 0, 0, 0 }
880
};
881

    
882
static void target_to_host_termios (void *dst, const void *src)
883
{
884
    struct host_termios *host = dst;
885
    const struct target_termios *target = src;
886
    
887
    host->c_iflag = 
888
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
889
    host->c_oflag = 
890
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
891
    host->c_cflag = 
892
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
893
    host->c_lflag = 
894
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
895
    host->c_line = target->c_line;
896
    
897
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
898
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
899
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
900
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
901
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
902
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
903
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
904
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
905
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
906
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
907
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
908
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
909
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
910
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
911
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
912
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
913
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
914
}
915
  
916
static void host_to_target_termios (void *dst, const void *src)
917
{
918
    struct target_termios *target = dst;
919
    const struct host_termios *host = src;
920

    
921
    target->c_iflag = 
922
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
923
    target->c_oflag = 
924
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
925
    target->c_cflag = 
926
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
927
    target->c_lflag = 
928
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
929
    target->c_line = host->c_line;
930
  
931
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
932
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
933
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
934
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
935
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
936
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
937
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
938
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
939
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
940
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
941
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
942
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
943
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
944
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
945
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
946
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
947
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
948
}
949

    
950
StructEntry struct_termios_def = {
951
    .convert = { host_to_target_termios, target_to_host_termios },
952
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
953
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
954
};
955

    
956
static bitmask_transtbl mmap_flags_tbl[] = {
957
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
958
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
959
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
960
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
961
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
962
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
963
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
964
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
965
        { 0, 0, 0, 0 }
966
};
967

    
968
#if defined(TARGET_I386)
969

    
970
/* NOTE: there is really one LDT for all the threads */
971
uint8_t *ldt_table;
972

    
973
static int read_ldt(void *ptr, unsigned long bytecount)
974
{
975
    int size;
976

    
977
    if (!ldt_table)
978
        return 0;
979
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
980
    if (size > bytecount)
981
        size = bytecount;
982
    memcpy(ptr, ldt_table, size);
983
    return size;
984
}
985

    
986
/* XXX: add locking support */
987
static int write_ldt(CPUX86State *env, 
988
                     void *ptr, unsigned long bytecount, int oldmode)
989
{
990
    struct target_modify_ldt_ldt_s ldt_info;
991
    int seg_32bit, contents, read_exec_only, limit_in_pages;
992
    int seg_not_present, useable;
993
    uint32_t *lp, entry_1, entry_2;
994

    
995
    if (bytecount != sizeof(ldt_info))
996
        return -EINVAL;
997
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
998
    tswap32s(&ldt_info.entry_number);
999
    tswapls((long *)&ldt_info.base_addr);
1000
    tswap32s(&ldt_info.limit);
1001
    tswap32s(&ldt_info.flags);
1002
    
1003
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1004
        return -EINVAL;
1005
    seg_32bit = ldt_info.flags & 1;
1006
    contents = (ldt_info.flags >> 1) & 3;
1007
    read_exec_only = (ldt_info.flags >> 3) & 1;
1008
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1009
    seg_not_present = (ldt_info.flags >> 5) & 1;
1010
    useable = (ldt_info.flags >> 6) & 1;
1011

    
1012
    if (contents == 3) {
1013
        if (oldmode)
1014
            return -EINVAL;
1015
        if (seg_not_present == 0)
1016
            return -EINVAL;
1017
    }
1018
    /* allocate the LDT */
1019
    if (!ldt_table) {
1020
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1021
        if (!ldt_table)
1022
            return -ENOMEM;
1023
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1024
        env->ldt.base = ldt_table;
1025
        env->ldt.limit = 0xffff;
1026
    }
1027

    
1028
    /* NOTE: same code as Linux kernel */
1029
    /* Allow LDTs to be cleared by the user. */
1030
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1031
        if (oldmode ||
1032
            (contents == 0                &&
1033
             read_exec_only == 1        &&
1034
             seg_32bit == 0                &&
1035
             limit_in_pages == 0        &&
1036
             seg_not_present == 1        &&
1037
             useable == 0 )) {
1038
            entry_1 = 0;
1039
            entry_2 = 0;
1040
            goto install;
1041
        }
1042
    }
1043
    
1044
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1045
        (ldt_info.limit & 0x0ffff);
1046
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1047
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1048
        (ldt_info.limit & 0xf0000) |
1049
        ((read_exec_only ^ 1) << 9) |
1050
        (contents << 10) |
1051
        ((seg_not_present ^ 1) << 15) |
1052
        (seg_32bit << 22) |
1053
        (limit_in_pages << 23) |
1054
        0x7000;
1055
    if (!oldmode)
1056
        entry_2 |= (useable << 20);
1057

    
1058
    /* Install the new entry ...  */
1059
install:
1060
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1061
    lp[0] = tswap32(entry_1);
1062
    lp[1] = tswap32(entry_2);
1063
    return 0;
1064
}
1065

    
1066
/* specific and weird i386 syscalls */
1067
int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1068
{
1069
    int ret = -ENOSYS;
1070
    
1071
    switch (func) {
1072
    case 0:
1073
        ret = read_ldt(ptr, bytecount);
1074
        break;
1075
    case 1:
1076
        ret = write_ldt(env, ptr, bytecount, 1);
1077
        break;
1078
    case 0x11:
1079
        ret = write_ldt(env, ptr, bytecount, 0);
1080
        break;
1081
    }
1082
    return ret;
1083
}
1084

    
1085
#endif /* defined(TARGET_I386) */
1086

    
1087
/* this stack is the equivalent of the kernel stack associated with a
1088
   thread/process */
1089
#define NEW_STACK_SIZE 8192
1090

    
1091
static int clone_func(void *arg)
1092
{
1093
    CPUState *env = arg;
1094
    cpu_loop(env);
1095
    /* never exits */
1096
    return 0;
1097
}
1098

    
1099
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1100
{
1101
    int ret;
1102
    TaskState *ts;
1103
    uint8_t *new_stack;
1104
    CPUState *new_env;
1105
    
1106
    if (flags & CLONE_VM) {
1107
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1108
        memset(ts, 0, sizeof(TaskState));
1109
        new_stack = ts->stack;
1110
        ts->used = 1;
1111
        /* add in task state list */
1112
        ts->next = first_task_state;
1113
        first_task_state = ts;
1114
        /* we create a new CPU instance. */
1115
        new_env = cpu_init();
1116
        memcpy(new_env, env, sizeof(CPUState));
1117
#if defined(TARGET_I386)
1118
        if (!newsp)
1119
            newsp = env->regs[R_ESP];
1120
        new_env->regs[R_ESP] = newsp;
1121
        new_env->regs[R_EAX] = 0;
1122
#elif defined(TARGET_ARM)
1123
        if (!newsp)
1124
            newsp = env->regs[13];
1125
        new_env->regs[13] = newsp;
1126
        new_env->regs[0] = 0;
1127
#else
1128
#error unsupported target CPU
1129
#endif
1130
        new_env->opaque = ts;
1131
#ifdef __ia64__
1132
        ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1133
#else
1134
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1135
#endif
1136
    } else {
1137
        /* if no CLONE_VM, we consider it is a fork */
1138
        if ((flags & ~CSIGNAL) != 0)
1139
            return -EINVAL;
1140
        ret = fork();
1141
    }
1142
    return ret;
1143
}
1144

    
1145
static long do_fcntl(int fd, int cmd, unsigned long arg)
1146
{
1147
    struct flock fl;
1148
    struct target_flock *target_fl = (void *)arg;
1149
    long ret;
1150
    
1151
    switch(cmd) {
1152
    case TARGET_F_GETLK:
1153
        ret = fcntl(fd, cmd, &fl);
1154
        if (ret == 0) {
1155
            target_fl->l_type = tswap16(fl.l_type);
1156
            target_fl->l_whence = tswap16(fl.l_whence);
1157
            target_fl->l_start = tswapl(fl.l_start);
1158
            target_fl->l_len = tswapl(fl.l_len);
1159
            target_fl->l_pid = tswapl(fl.l_pid);
1160
        }
1161
        break;
1162
        
1163
    case TARGET_F_SETLK:
1164
    case TARGET_F_SETLKW:
1165
        fl.l_type = tswap16(target_fl->l_type);
1166
        fl.l_whence = tswap16(target_fl->l_whence);
1167
        fl.l_start = tswapl(target_fl->l_start);
1168
        fl.l_len = tswapl(target_fl->l_len);
1169
        fl.l_pid = tswapl(target_fl->l_pid);
1170
        ret = fcntl(fd, cmd, &fl);
1171
        break;
1172
        
1173
    case TARGET_F_GETLK64:
1174
    case TARGET_F_SETLK64:
1175
    case TARGET_F_SETLKW64:
1176
        ret = -1;
1177
        errno = EINVAL;
1178
        break;
1179

    
1180
    default:
1181
        ret = fcntl(fd, cmd, arg);
1182
        break;
1183
    }
1184
    return ret;
1185
}
1186

    
1187

    
1188
#define high2lowuid(x) (x)
1189
#define high2lowgid(x) (x)
1190
#define low2highuid(x) (x)
1191
#define low2highgid(x) (x)
1192

    
1193
void syscall_init(void)
1194
{
1195
    IOCTLEntry *ie;
1196
    const argtype *arg_type;
1197
    int size;
1198

    
1199
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1200
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1201
#include "syscall_types.h"
1202
#undef STRUCT
1203
#undef STRUCT_SPECIAL
1204

    
1205
    /* we patch the ioctl size if necessary. We rely on the fact that
1206
       no ioctl has all the bits at '1' in the size field */
1207
    ie = ioctl_entries;
1208
    while (ie->target_cmd != 0) {
1209
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1210
            TARGET_IOC_SIZEMASK) {
1211
            arg_type = ie->arg_type;
1212
            if (arg_type[0] != TYPE_PTR) {
1213
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1214
                        ie->target_cmd);
1215
                exit(1);
1216
            }
1217
            arg_type++;
1218
            size = thunk_type_size(arg_type, 0);
1219
            ie->target_cmd = (ie->target_cmd & 
1220
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1221
                (size << TARGET_IOC_SIZESHIFT);
1222
        }
1223
        /* automatic consistency check if same arch */
1224
#if defined(__i386__) && defined(TARGET_I386)
1225
        if (ie->target_cmd != ie->host_cmd) {
1226
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1227
                    ie->target_cmd, ie->host_cmd);
1228
        }
1229
#endif
1230
        ie++;
1231
    }
1232
}
1233
                                 
1234
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1235
                long arg4, long arg5, long arg6)
1236
{
1237
    long ret;
1238
    struct stat st;
1239
    struct kernel_statfs *stfs;
1240
    
1241
#ifdef DEBUG
1242
    gemu_log("syscall %d\n", num);
1243
#endif
1244
    switch(num) {
1245
    case TARGET_NR_exit:
1246
#ifdef HAVE_GPROF
1247
        _mcleanup();
1248
#endif
1249
        /* XXX: should free thread stack and CPU env */
1250
        _exit(arg1);
1251
        ret = 0; /* avoid warning */
1252
        break;
1253
    case TARGET_NR_read:
1254
        page_unprotect_range((void *)arg2, arg3);
1255
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1256
        break;
1257
    case TARGET_NR_write:
1258
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1259
        break;
1260
    case TARGET_NR_open:
1261
        ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1262
        break;
1263
    case TARGET_NR_close:
1264
        ret = get_errno(close(arg1));
1265
        break;
1266
    case TARGET_NR_brk:
1267
        ret = do_brk((char *)arg1);
1268
        break;
1269
    case TARGET_NR_fork:
1270
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1271
        break;
1272
    case TARGET_NR_waitpid:
1273
        {
1274
            int *status = (int *)arg2;
1275
            ret = get_errno(waitpid(arg1, status, arg3));
1276
            if (!is_error(ret) && status)
1277
                tswapls((long *)&status);
1278
        }
1279
        break;
1280
    case TARGET_NR_creat:
1281
        ret = get_errno(creat((const char *)arg1, arg2));
1282
        break;
1283
    case TARGET_NR_link:
1284
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1285
        break;
1286
    case TARGET_NR_unlink:
1287
        ret = get_errno(unlink((const char *)arg1));
1288
        break;
1289
    case TARGET_NR_execve:
1290
        {
1291
            char **argp, **envp;
1292
            int argc, envc;
1293
            uint32_t *p;
1294
            char **q;
1295

    
1296
            argc = 0;
1297
            for (p = (void *)arg2; *p; p++)
1298
                argc++;
1299
            envc = 0;
1300
            for (p = (void *)arg3; *p; p++)
1301
                envc++;
1302

    
1303
            argp = alloca((argc + 1) * sizeof(void *));
1304
            envp = alloca((envc + 1) * sizeof(void *));
1305

    
1306
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1307
                *q = (void *)tswap32(*p);
1308
            *q = NULL;
1309

    
1310
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1311
                *q = (void *)tswap32(*p);
1312
            *q = NULL;
1313

    
1314
            ret = get_errno(execve((const char *)arg1, argp, envp));
1315
        }
1316
        break;
1317
    case TARGET_NR_chdir:
1318
        ret = get_errno(chdir((const char *)arg1));
1319
        break;
1320
    case TARGET_NR_time:
1321
        {
1322
            int *time_ptr = (int *)arg1;
1323
            ret = get_errno(time((time_t *)time_ptr));
1324
            if (!is_error(ret) && time_ptr)
1325
                tswap32s(time_ptr);
1326
        }
1327
        break;
1328
    case TARGET_NR_mknod:
1329
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1330
        break;
1331
    case TARGET_NR_chmod:
1332
        ret = get_errno(chmod((const char *)arg1, arg2));
1333
        break;
1334
    case TARGET_NR_lchown:
1335
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1336
        break;
1337
    case TARGET_NR_break:
1338
        goto unimplemented;
1339
    case TARGET_NR_oldstat:
1340
        goto unimplemented;
1341
    case TARGET_NR_lseek:
1342
        ret = get_errno(lseek(arg1, arg2, arg3));
1343
        break;
1344
    case TARGET_NR_getpid:
1345
        ret = get_errno(getpid());
1346
        break;
1347
    case TARGET_NR_mount:
1348
        /* need to look at the data field */
1349
        goto unimplemented;
1350
    case TARGET_NR_umount:
1351
        ret = get_errno(umount((const char *)arg1));
1352
        break;
1353
    case TARGET_NR_setuid:
1354
        ret = get_errno(setuid(low2highuid(arg1)));
1355
        break;
1356
    case TARGET_NR_getuid:
1357
        ret = get_errno(getuid());
1358
        break;
1359
    case TARGET_NR_stime:
1360
        {
1361
            int *time_ptr = (int *)arg1;
1362
            if (time_ptr)
1363
                tswap32s(time_ptr);
1364
            ret = get_errno(stime((time_t *)time_ptr));
1365
        }
1366
        break;
1367
    case TARGET_NR_ptrace:
1368
        goto unimplemented;
1369
    case TARGET_NR_alarm:
1370
        ret = alarm(arg1);
1371
        break;
1372
    case TARGET_NR_oldfstat:
1373
        goto unimplemented;
1374
    case TARGET_NR_pause:
1375
        ret = get_errno(pause());
1376
        break;
1377
    case TARGET_NR_utime:
1378
        goto unimplemented;
1379
    case TARGET_NR_stty:
1380
        goto unimplemented;
1381
    case TARGET_NR_gtty:
1382
        goto unimplemented;
1383
    case TARGET_NR_access:
1384
        ret = get_errno(access((const char *)arg1, arg2));
1385
        break;
1386
    case TARGET_NR_nice:
1387
        ret = get_errno(nice(arg1));
1388
        break;
1389
    case TARGET_NR_ftime:
1390
        goto unimplemented;
1391
    case TARGET_NR_sync:
1392
        sync();
1393
        ret = 0;
1394
        break;
1395
    case TARGET_NR_kill:
1396
        ret = get_errno(kill(arg1, arg2));
1397
        break;
1398
    case TARGET_NR_rename:
1399
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1400
        break;
1401
    case TARGET_NR_mkdir:
1402
        ret = get_errno(mkdir((const char *)arg1, arg2));
1403
        break;
1404
    case TARGET_NR_rmdir:
1405
        ret = get_errno(rmdir((const char *)arg1));
1406
        break;
1407
    case TARGET_NR_dup:
1408
        ret = get_errno(dup(arg1));
1409
        break;
1410
    case TARGET_NR_pipe:
1411
        {
1412
            int *pipe_ptr = (int *)arg1;
1413
            ret = get_errno(pipe(pipe_ptr));
1414
            if (!is_error(ret)) {
1415
                tswap32s(&pipe_ptr[0]);
1416
                tswap32s(&pipe_ptr[1]);
1417
            }
1418
        }
1419
        break;
1420
    case TARGET_NR_times:
1421
        {
1422
            struct target_tms *tmsp = (void *)arg1;
1423
            struct tms tms;
1424
            ret = get_errno(times(&tms));
1425
            if (tmsp) {
1426
                tmsp->tms_utime = tswapl(tms.tms_utime);
1427
                tmsp->tms_stime = tswapl(tms.tms_stime);
1428
                tmsp->tms_cutime = tswapl(tms.tms_cutime);
1429
                tmsp->tms_cstime = tswapl(tms.tms_cstime);
1430
            }
1431
        }
1432
        break;
1433
    case TARGET_NR_prof:
1434
        goto unimplemented;
1435
    case TARGET_NR_setgid:
1436
        ret = get_errno(setgid(low2highgid(arg1)));
1437
        break;
1438
    case TARGET_NR_getgid:
1439
        ret = get_errno(getgid());
1440
        break;
1441
    case TARGET_NR_signal:
1442
        goto unimplemented;
1443
    case TARGET_NR_geteuid:
1444
        ret = get_errno(geteuid());
1445
        break;
1446
    case TARGET_NR_getegid:
1447
        ret = get_errno(getegid());
1448
        break;
1449
    case TARGET_NR_acct:
1450
        goto unimplemented;
1451
    case TARGET_NR_umount2:
1452
        ret = get_errno(umount2((const char *)arg1, arg2));
1453
        break;
1454
    case TARGET_NR_lock:
1455
        goto unimplemented;
1456
    case TARGET_NR_ioctl:
1457
        ret = do_ioctl(arg1, arg2, arg3);
1458
        break;
1459
    case TARGET_NR_fcntl:
1460
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
1461
        break;
1462
    case TARGET_NR_mpx:
1463
        goto unimplemented;
1464
    case TARGET_NR_setpgid:
1465
        ret = get_errno(setpgid(arg1, arg2));
1466
        break;
1467
    case TARGET_NR_ulimit:
1468
        goto unimplemented;
1469
    case TARGET_NR_oldolduname:
1470
        goto unimplemented;
1471
    case TARGET_NR_umask:
1472
        ret = get_errno(umask(arg1));
1473
        break;
1474
    case TARGET_NR_chroot:
1475
        ret = get_errno(chroot((const char *)arg1));
1476
        break;
1477
    case TARGET_NR_ustat:
1478
        goto unimplemented;
1479
    case TARGET_NR_dup2:
1480
        ret = get_errno(dup2(arg1, arg2));
1481
        break;
1482
    case TARGET_NR_getppid:
1483
        ret = get_errno(getppid());
1484
        break;
1485
    case TARGET_NR_getpgrp:
1486
        ret = get_errno(getpgrp());
1487
        break;
1488
    case TARGET_NR_setsid:
1489
        ret = get_errno(setsid());
1490
        break;
1491
    case TARGET_NR_sigaction:
1492
        {
1493
            struct target_old_sigaction *old_act = (void *)arg2;
1494
            struct target_old_sigaction *old_oact = (void *)arg3;
1495
            struct target_sigaction act, oact, *pact;
1496
            if (old_act) {
1497
                act._sa_handler = old_act->_sa_handler;
1498
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1499
                act.sa_flags = old_act->sa_flags;
1500
                act.sa_restorer = old_act->sa_restorer;
1501
                pact = &act;
1502
            } else {
1503
                pact = NULL;
1504
            }
1505
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1506
            if (!is_error(ret) && old_oact) {
1507
                old_oact->_sa_handler = oact._sa_handler;
1508
                old_oact->sa_mask = oact.sa_mask.sig[0];
1509
                old_oact->sa_flags = oact.sa_flags;
1510
                old_oact->sa_restorer = oact.sa_restorer;
1511
            }
1512
        }
1513
        break;
1514
    case TARGET_NR_rt_sigaction:
1515
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1516
        break;
1517
    case TARGET_NR_sgetmask:
1518
        {
1519
            sigset_t cur_set;
1520
            target_ulong target_set;
1521
            sigprocmask(0, NULL, &cur_set);
1522
            host_to_target_old_sigset(&target_set, &cur_set);
1523
            ret = target_set;
1524
        }
1525
        break;
1526
    case TARGET_NR_ssetmask:
1527
        {
1528
            sigset_t set, oset, cur_set;
1529
            target_ulong target_set = arg1;
1530
            sigprocmask(0, NULL, &cur_set);
1531
            target_to_host_old_sigset(&set, &target_set);
1532
            sigorset(&set, &set, &cur_set);
1533
            sigprocmask(SIG_SETMASK, &set, &oset);
1534
            host_to_target_old_sigset(&target_set, &oset);
1535
            ret = target_set;
1536
        }
1537
        break;
1538
    case TARGET_NR_sigprocmask:
1539
        {
1540
            int how = arg1;
1541
            sigset_t set, oldset, *set_ptr;
1542
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1543
            
1544
            if (pset) {
1545
                switch(how) {
1546
                case TARGET_SIG_BLOCK:
1547
                    how = SIG_BLOCK;
1548
                    break;
1549
                case TARGET_SIG_UNBLOCK:
1550
                    how = SIG_UNBLOCK;
1551
                    break;
1552
                case TARGET_SIG_SETMASK:
1553
                    how = SIG_SETMASK;
1554
                    break;
1555
                default:
1556
                    ret = -EINVAL;
1557
                    goto fail;
1558
                }
1559
                target_to_host_old_sigset(&set, pset);
1560
                set_ptr = &set;
1561
            } else {
1562
                how = 0;
1563
                set_ptr = NULL;
1564
            }
1565
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1566
            if (!is_error(ret) && poldset) {
1567
                host_to_target_old_sigset(poldset, &oldset);
1568
            }
1569
        }
1570
        break;
1571
    case TARGET_NR_rt_sigprocmask:
1572
        {
1573
            int how = arg1;
1574
            sigset_t set, oldset, *set_ptr;
1575
            target_sigset_t *pset = (void *)arg2;
1576
            target_sigset_t *poldset = (void *)arg3;
1577
            
1578
            if (pset) {
1579
                switch(how) {
1580
                case TARGET_SIG_BLOCK:
1581
                    how = SIG_BLOCK;
1582
                    break;
1583
                case TARGET_SIG_UNBLOCK:
1584
                    how = SIG_UNBLOCK;
1585
                    break;
1586
                case TARGET_SIG_SETMASK:
1587
                    how = SIG_SETMASK;
1588
                    break;
1589
                default:
1590
                    ret = -EINVAL;
1591
                    goto fail;
1592
                }
1593
                target_to_host_sigset(&set, pset);
1594
                set_ptr = &set;
1595
            } else {
1596
                how = 0;
1597
                set_ptr = NULL;
1598
            }
1599
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1600
            if (!is_error(ret) && poldset) {
1601
                host_to_target_sigset(poldset, &oldset);
1602
            }
1603
        }
1604
        break;
1605
    case TARGET_NR_sigpending:
1606
        {
1607
            sigset_t set;
1608
            ret = get_errno(sigpending(&set));
1609
            if (!is_error(ret)) {
1610
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1611
            }
1612
        }
1613
        break;
1614
    case TARGET_NR_rt_sigpending:
1615
        {
1616
            sigset_t set;
1617
            ret = get_errno(sigpending(&set));
1618
            if (!is_error(ret)) {
1619
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1620
            }
1621
        }
1622
        break;
1623
    case TARGET_NR_sigsuspend:
1624
        {
1625
            sigset_t set;
1626
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1627
            ret = get_errno(sigsuspend(&set));
1628
        }
1629
        break;
1630
    case TARGET_NR_rt_sigsuspend:
1631
        {
1632
            sigset_t set;
1633
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1634
            ret = get_errno(sigsuspend(&set));
1635
        }
1636
        break;
1637
    case TARGET_NR_rt_sigtimedwait:
1638
        {
1639
            target_sigset_t *target_set = (void *)arg1;
1640
            target_siginfo_t *target_uinfo = (void *)arg2;
1641
            struct target_timespec *target_uts = (void *)arg3;
1642
            sigset_t set;
1643
            struct timespec uts, *puts;
1644
            siginfo_t uinfo;
1645
            
1646
            target_to_host_sigset(&set, target_set);
1647
            if (target_uts) {
1648
                puts = &uts;
1649
                puts->tv_sec = tswapl(target_uts->tv_sec);
1650
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1651
            } else {
1652
                puts = NULL;
1653
            }
1654
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1655
            if (!is_error(ret) && target_uinfo) {
1656
                host_to_target_siginfo(target_uinfo, &uinfo);
1657
            }
1658
        }
1659
        break;
1660
    case TARGET_NR_rt_sigqueueinfo:
1661
        {
1662
            siginfo_t uinfo;
1663
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1664
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1665
        }
1666
        break;
1667
    case TARGET_NR_sigreturn:
1668
        /* NOTE: ret is eax, so not transcoding must be done */
1669
        ret = do_sigreturn(cpu_env);
1670
        break;
1671
    case TARGET_NR_rt_sigreturn:
1672
        /* NOTE: ret is eax, so not transcoding must be done */
1673
        ret = do_rt_sigreturn(cpu_env);
1674
        break;
1675
    case TARGET_NR_setreuid:
1676
        ret = get_errno(setreuid(arg1, arg2));
1677
        break;
1678
    case TARGET_NR_setregid:
1679
        ret = get_errno(setregid(arg1, arg2));
1680
        break;
1681
    case TARGET_NR_sethostname:
1682
        ret = get_errno(sethostname((const char *)arg1, arg2));
1683
        break;
1684
    case TARGET_NR_setrlimit:
1685
        {
1686
            /* XXX: convert resource ? */
1687
            int resource = arg1;
1688
            struct target_rlimit *target_rlim = (void *)arg2;
1689
            struct rlimit rlim;
1690
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1691
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1692
            ret = get_errno(setrlimit(resource, &rlim));
1693
        }
1694
        break;
1695
    case TARGET_NR_getrlimit:
1696
        {
1697
            /* XXX: convert resource ? */
1698
            int resource = arg1;
1699
            struct target_rlimit *target_rlim = (void *)arg2;
1700
            struct rlimit rlim;
1701
            
1702
            ret = get_errno(getrlimit(resource, &rlim));
1703
            if (!is_error(ret)) {
1704
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1705
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1706
            }
1707
        }
1708
        break;
1709
    case TARGET_NR_getrusage:
1710
        {
1711
            struct rusage rusage;
1712
            struct target_rusage *target_rusage = (void *)arg2;
1713
            ret = get_errno(getrusage(arg1, &rusage));
1714
            if (!is_error(ret)) {
1715
                host_to_target_rusage(target_rusage, &rusage);
1716
            }
1717
        }
1718
        break;
1719
    case TARGET_NR_gettimeofday:
1720
        {
1721
            struct target_timeval *target_tv = (void *)arg1;
1722
            struct timeval tv;
1723
            ret = get_errno(gettimeofday(&tv, NULL));
1724
            if (!is_error(ret)) {
1725
                host_to_target_timeval(target_tv, &tv);
1726
            }
1727
        }
1728
        break;
1729
    case TARGET_NR_settimeofday:
1730
        {
1731
            struct target_timeval *target_tv = (void *)arg1;
1732
            struct timeval tv;
1733
            target_to_host_timeval(&tv, target_tv);
1734
            ret = get_errno(settimeofday(&tv, NULL));
1735
        }
1736
        break;
1737
    case TARGET_NR_getgroups:
1738
        {
1739
            int gidsetsize = arg1;
1740
            uint16_t *target_grouplist = (void *)arg2;
1741
            gid_t *grouplist;
1742
            int i;
1743

    
1744
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1745
            ret = get_errno(getgroups(gidsetsize, grouplist));
1746
            if (!is_error(ret)) {
1747
                for(i = 0;i < gidsetsize; i++)
1748
                    target_grouplist[i] = tswap16(grouplist[i]);
1749
            }
1750
        }
1751
        break;
1752
    case TARGET_NR_setgroups:
1753
        {
1754
            int gidsetsize = arg1;
1755
            uint16_t *target_grouplist = (void *)arg2;
1756
            gid_t *grouplist;
1757
            int i;
1758

    
1759
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1760
            for(i = 0;i < gidsetsize; i++)
1761
                grouplist[i] = tswap16(target_grouplist[i]);
1762
            ret = get_errno(setgroups(gidsetsize, grouplist));
1763
        }
1764
        break;
1765
    case TARGET_NR_select:
1766
        {
1767
            struct target_sel_arg_struct *sel = (void *)arg1;
1768
            sel->n = tswapl(sel->n);
1769
            sel->inp = tswapl(sel->inp);
1770
            sel->outp = tswapl(sel->outp);
1771
            sel->exp = tswapl(sel->exp);
1772
            sel->tvp = tswapl(sel->tvp);
1773
            ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
1774
                            (void *)sel->exp, (void *)sel->tvp);
1775
        }
1776
        break;
1777
    case TARGET_NR_symlink:
1778
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1779
        break;
1780
    case TARGET_NR_oldlstat:
1781
        goto unimplemented;
1782
    case TARGET_NR_readlink:
1783
        ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1784
        break;
1785
    case TARGET_NR_uselib:
1786
        goto unimplemented;
1787
    case TARGET_NR_swapon:
1788
        ret = get_errno(swapon((const char *)arg1, arg2));
1789
        break;
1790
    case TARGET_NR_reboot:
1791
        goto unimplemented;
1792
    case TARGET_NR_readdir:
1793
        goto unimplemented;
1794
    case TARGET_NR_mmap:
1795
#if defined(TARGET_I386) || defined(TARGET_ARM)
1796
        {
1797
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1798
            vptr = (uint32_t *)arg1;
1799
            v1 = tswap32(vptr[0]);
1800
            v2 = tswap32(vptr[1]);
1801
            v3 = tswap32(vptr[2]);
1802
            v4 = tswap32(vptr[3]);
1803
            v5 = tswap32(vptr[4]);
1804
            v6 = tswap32(vptr[5]);
1805
            ret = get_errno(target_mmap(v1, v2, v3, 
1806
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
1807
                                        v5, v6));
1808
        }
1809
#else
1810
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
1811
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
1812
                                    arg5,
1813
                                    arg6));
1814
#endif
1815
        break;
1816
    case TARGET_NR_mmap2:
1817
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
1818
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
1819
                                    arg5,
1820
                                    arg6 << TARGET_PAGE_BITS));
1821
        break;
1822
    case TARGET_NR_munmap:
1823
        ret = get_errno(target_munmap(arg1, arg2));
1824
        break;
1825
    case TARGET_NR_mprotect:
1826
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
1827
        break;
1828
    case TARGET_NR_mremap:
1829
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
1830
        break;
1831
    case TARGET_NR_msync:
1832
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1833
        break;
1834
    case TARGET_NR_mlock:
1835
        ret = get_errno(mlock((void *)arg1, arg2));
1836
        break;
1837
    case TARGET_NR_munlock:
1838
        ret = get_errno(munlock((void *)arg1, arg2));
1839
        break;
1840
    case TARGET_NR_mlockall:
1841
        ret = get_errno(mlockall(arg1));
1842
        break;
1843
    case TARGET_NR_munlockall:
1844
        ret = get_errno(munlockall());
1845
        break;
1846
    case TARGET_NR_truncate:
1847
        ret = get_errno(truncate((const char *)arg1, arg2));
1848
        break;
1849
    case TARGET_NR_ftruncate:
1850
        ret = get_errno(ftruncate(arg1, arg2));
1851
        break;
1852
    case TARGET_NR_fchmod:
1853
        ret = get_errno(fchmod(arg1, arg2));
1854
        break;
1855
    case TARGET_NR_fchown:
1856
        ret = get_errno(fchown(arg1, arg2, arg3));
1857
        break;
1858
    case TARGET_NR_getpriority:
1859
        ret = get_errno(getpriority(arg1, arg2));
1860
        break;
1861
    case TARGET_NR_setpriority:
1862
        ret = get_errno(setpriority(arg1, arg2, arg3));
1863
        break;
1864
    case TARGET_NR_profil:
1865
        goto unimplemented;
1866
    case TARGET_NR_statfs:
1867
        stfs = (void *)arg2;
1868
        ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
1869
    convert_statfs:
1870
        if (!is_error(ret)) {
1871
            tswap32s(&stfs->f_type);
1872
            tswap32s(&stfs->f_bsize);
1873
            tswap32s(&stfs->f_blocks);
1874
            tswap32s(&stfs->f_bfree);
1875
            tswap32s(&stfs->f_bavail);
1876
            tswap32s(&stfs->f_files);
1877
            tswap32s(&stfs->f_ffree);
1878
            tswap32s(&stfs->f_fsid.val[0]);
1879
            tswap32s(&stfs->f_fsid.val[1]);
1880
            tswap32s(&stfs->f_namelen);
1881
        }
1882
        break;
1883
    case TARGET_NR_fstatfs:
1884
        stfs = (void *)arg2;
1885
        ret = get_errno(sys_fstatfs(arg1, stfs));
1886
        goto convert_statfs;
1887
    case TARGET_NR_ioperm:
1888
        goto unimplemented;
1889
    case TARGET_NR_socketcall:
1890
        ret = do_socketcall(arg1, (int32_t *)arg2);
1891
        break;
1892
    case TARGET_NR_syslog:
1893
        goto unimplemented;
1894
    case TARGET_NR_setitimer:
1895
        {
1896
            struct target_itimerval *target_value = (void *)arg2;
1897
            struct target_itimerval *target_ovalue = (void *)arg3;
1898
            struct itimerval value, ovalue, *pvalue;
1899

    
1900
            if (target_value) {
1901
                pvalue = &value;
1902
                target_to_host_timeval(&pvalue->it_interval, 
1903
                                       &target_value->it_interval);
1904
                target_to_host_timeval(&pvalue->it_value, 
1905
                                       &target_value->it_value);
1906
            } else {
1907
                pvalue = NULL;
1908
            }
1909
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1910
            if (!is_error(ret) && target_ovalue) {
1911
                host_to_target_timeval(&target_ovalue->it_interval, 
1912
                                       &ovalue.it_interval);
1913
                host_to_target_timeval(&target_ovalue->it_value, 
1914
                                       &ovalue.it_value);
1915
            }
1916
        }
1917
        break;
1918
    case TARGET_NR_getitimer:
1919
        {
1920
            struct target_itimerval *target_value = (void *)arg2;
1921
            struct itimerval value;
1922
            
1923
            ret = get_errno(getitimer(arg1, &value));
1924
            if (!is_error(ret) && target_value) {
1925
                host_to_target_timeval(&target_value->it_interval, 
1926
                                       &value.it_interval);
1927
                host_to_target_timeval(&target_value->it_value, 
1928
                                       &value.it_value);
1929
            }
1930
        }
1931
        break;
1932
    case TARGET_NR_stat:
1933
        ret = get_errno(stat(path((const char *)arg1), &st));
1934
        goto do_stat;
1935
    case TARGET_NR_lstat:
1936
        ret = get_errno(lstat(path((const char *)arg1), &st));
1937
        goto do_stat;
1938
    case TARGET_NR_fstat:
1939
        {
1940
            ret = get_errno(fstat(arg1, &st));
1941
        do_stat:
1942
            if (!is_error(ret)) {
1943
                struct target_stat *target_st = (void *)arg2;
1944
                target_st->st_dev = tswap16(st.st_dev);
1945
                target_st->st_ino = tswapl(st.st_ino);
1946
                target_st->st_mode = tswap16(st.st_mode);
1947
                target_st->st_nlink = tswap16(st.st_nlink);
1948
                target_st->st_uid = tswap16(st.st_uid);
1949
                target_st->st_gid = tswap16(st.st_gid);
1950
                target_st->st_rdev = tswap16(st.st_rdev);
1951
                target_st->st_size = tswapl(st.st_size);
1952
                target_st->st_blksize = tswapl(st.st_blksize);
1953
                target_st->st_blocks = tswapl(st.st_blocks);
1954
                target_st->target_st_atime = tswapl(st.st_atime);
1955
                target_st->target_st_mtime = tswapl(st.st_mtime);
1956
                target_st->target_st_ctime = tswapl(st.st_ctime);
1957
            }
1958
        }
1959
        break;
1960
    case TARGET_NR_olduname:
1961
        goto unimplemented;
1962
    case TARGET_NR_iopl:
1963
        goto unimplemented;
1964
    case TARGET_NR_vhangup:
1965
        ret = get_errno(vhangup());
1966
        break;
1967
    case TARGET_NR_idle:
1968
        goto unimplemented;
1969
    case TARGET_NR_wait4:
1970
        {
1971
            int status;
1972
            target_long *status_ptr = (void *)arg2;
1973
            struct rusage rusage, *rusage_ptr;
1974
            struct target_rusage *target_rusage = (void *)arg4;
1975
            if (target_rusage)
1976
                rusage_ptr = &rusage;
1977
            else
1978
                rusage_ptr = NULL;
1979
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1980
            if (!is_error(ret)) {
1981
                if (status_ptr)
1982
                    *status_ptr = tswap32(status);
1983
                if (target_rusage) {
1984
                    host_to_target_rusage(target_rusage, &rusage);
1985
                }
1986
            }
1987
        }
1988
        break;
1989
    case TARGET_NR_swapoff:
1990
        ret = get_errno(swapoff((const char *)arg1));
1991
        break;
1992
    case TARGET_NR_sysinfo:
1993
        goto unimplemented;
1994
    case TARGET_NR_ipc:
1995
        goto unimplemented;
1996
    case TARGET_NR_fsync:
1997
        ret = get_errno(fsync(arg1));
1998
        break;
1999
    case TARGET_NR_clone:
2000
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
2001
        break;
2002
#ifdef __NR_exit_group
2003
        /* new thread calls */
2004
    case TARGET_NR_exit_group:
2005
        ret = get_errno(exit_group(arg1));
2006
        break;
2007
#endif
2008
    case TARGET_NR_setdomainname:
2009
        ret = get_errno(setdomainname((const char *)arg1, arg2));
2010
        break;
2011
    case TARGET_NR_uname:
2012
        /* no need to transcode because we use the linux syscall */
2013
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
2014
        break;
2015
#ifdef TARGET_I386
2016
    case TARGET_NR_modify_ldt:
2017
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2018
        break;
2019
    case TARGET_NR_vm86old:
2020
        goto unimplemented;
2021
    case TARGET_NR_vm86:
2022
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
2023
        break;
2024
#endif
2025
    case TARGET_NR_adjtimex:
2026
        goto unimplemented;
2027
    case TARGET_NR_create_module:
2028
    case TARGET_NR_init_module:
2029
    case TARGET_NR_delete_module:
2030
    case TARGET_NR_get_kernel_syms:
2031
        goto unimplemented;
2032
    case TARGET_NR_quotactl:
2033
        goto unimplemented;
2034
    case TARGET_NR_getpgid:
2035
        ret = get_errno(getpgid(arg1));
2036
        break;
2037
    case TARGET_NR_fchdir:
2038
        ret = get_errno(fchdir(arg1));
2039
        break;
2040
    case TARGET_NR_bdflush:
2041
        goto unimplemented;
2042
    case TARGET_NR_sysfs:
2043
        goto unimplemented;
2044
    case TARGET_NR_personality:
2045
        ret = get_errno(personality(arg1));
2046
        break;
2047
    case TARGET_NR_afs_syscall:
2048
        goto unimplemented;
2049
    case TARGET_NR_setfsuid:
2050
        ret = get_errno(setfsuid(arg1));
2051
        break;
2052
    case TARGET_NR_setfsgid:
2053
        ret = get_errno(setfsgid(arg1));
2054
        break;
2055
    case TARGET_NR__llseek:
2056
        {
2057
            int64_t res;
2058
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2059
            *(int64_t *)arg4 = tswap64(res);
2060
        }
2061
        break;
2062
    case TARGET_NR_getdents:
2063
#if TARGET_LONG_SIZE != 4
2064
#error not supported
2065
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2066
        {
2067
            struct target_dirent *target_dirp = (void *)arg2;
2068
            struct dirent *dirp;
2069
            long count = arg3;
2070

    
2071
            dirp = malloc(count);
2072
            if (!dirp)
2073
                return -ENOMEM;
2074
            
2075
            ret = get_errno(sys_getdents(arg1, dirp, count));
2076
            if (!is_error(ret)) {
2077
                struct dirent *de;
2078
                struct target_dirent *tde;
2079
                int len = ret;
2080
                int reclen, treclen;
2081
                int count1, tnamelen;
2082

    
2083
                count1 = 0;
2084
                de = dirp;
2085
                tde = target_dirp;
2086
                while (len > 0) {
2087
                    reclen = de->d_reclen;
2088
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2089
                    tde->d_reclen = tswap16(treclen);
2090
                    tde->d_ino = tswapl(de->d_ino);
2091
                    tde->d_off = tswapl(de->d_off);
2092
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
2093
                    if (tnamelen > 256)
2094
                        tnamelen = 256;
2095
                    strncpy(tde->d_name, de->d_name, tnamelen);
2096
                    de = (struct dirent *)((char *)de + reclen);
2097
                    len -= reclen;
2098
                    tde = (struct dirent *)((char *)tde + treclen);
2099
                    count1 += treclen;
2100
                }
2101
                ret = count1;
2102
            }
2103
            free(dirp);
2104
        }
2105
#else
2106
        {
2107
            struct dirent *dirp = (void *)arg2;
2108
            long count = arg3;
2109

    
2110
            ret = get_errno(sys_getdents(arg1, dirp, count));
2111
            if (!is_error(ret)) {
2112
                struct dirent *de;
2113
                int len = ret;
2114
                int reclen;
2115
                de = dirp;
2116
                while (len > 0) {
2117
                    reclen = de->d_reclen;
2118
                    if (reclen > len)
2119
                        break;
2120
                    de->d_reclen = tswap16(reclen);
2121
                    tswapls(&de->d_ino);
2122
                    tswapls(&de->d_off);
2123
                    de = (struct dirent *)((char *)de + reclen);
2124
                    len -= reclen;
2125
                }
2126
            }
2127
        }
2128
#endif
2129
        break;
2130
    case TARGET_NR_getdents64:
2131
        {
2132
            struct dirent64 *dirp = (void *)arg2;
2133
            long count = arg3;
2134
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2135
            if (!is_error(ret)) {
2136
                struct dirent64 *de;
2137
                int len = ret;
2138
                int reclen;
2139
                de = dirp;
2140
                while (len > 0) {
2141
                    reclen = de->d_reclen;
2142
                    if (reclen > len)
2143
                        break;
2144
                    de->d_reclen = tswap16(reclen);
2145
                    tswap64s(&de->d_ino);
2146
                    tswap64s(&de->d_off);
2147
                    de = (struct dirent64 *)((char *)de + reclen);
2148
                    len -= reclen;
2149
                }
2150
            }
2151
        }
2152
        break;
2153
    case TARGET_NR__newselect:
2154
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2155
                        (void *)arg5);
2156
        break;
2157
    case TARGET_NR_poll:
2158
        {
2159
            struct target_pollfd *target_pfd = (void *)arg1;
2160
            unsigned int nfds = arg2;
2161
            int timeout = arg3;
2162
            struct pollfd *pfd;
2163
            unsigned int i;
2164

    
2165
            pfd = alloca(sizeof(struct pollfd) * nfds);
2166
            for(i = 0; i < nfds; i++) {
2167
                pfd[i].fd = tswap32(target_pfd[i].fd);
2168
                pfd[i].events = tswap16(target_pfd[i].events);
2169
            }
2170
            ret = get_errno(poll(pfd, nfds, timeout));
2171
            if (!is_error(ret)) {
2172
                for(i = 0; i < nfds; i++) {
2173
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2174
                }
2175
            }
2176
        }
2177
        break;
2178
    case TARGET_NR_flock:
2179
        /* NOTE: the flock constant seems to be the same for every
2180
           Linux platform */
2181
        ret = get_errno(flock(arg1, arg2));
2182
        break;
2183
    case TARGET_NR_readv:
2184
        {
2185
            int count = arg3;
2186
            int i;
2187
            struct iovec *vec;
2188
            struct target_iovec *target_vec = (void *)arg2;
2189

    
2190
            vec = alloca(count * sizeof(struct iovec));
2191
            for(i = 0;i < count; i++) {
2192
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2193
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2194
            }
2195
            ret = get_errno(readv(arg1, vec, count));
2196
        }
2197
        break;
2198
    case TARGET_NR_writev:
2199
        {
2200
            int count = arg3;
2201
            int i;
2202
            struct iovec *vec;
2203
            struct target_iovec *target_vec = (void *)arg2;
2204

    
2205
            vec = alloca(count * sizeof(struct iovec));
2206
            for(i = 0;i < count; i++) {
2207
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2208
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2209
            }
2210
            ret = get_errno(writev(arg1, vec, count));
2211
        }
2212
        break;
2213
    case TARGET_NR_getsid:
2214
        ret = get_errno(getsid(arg1));
2215
        break;
2216
    case TARGET_NR_fdatasync:
2217
        ret = get_errno(fdatasync(arg1));
2218
        break;
2219
    case TARGET_NR__sysctl:
2220
        goto unimplemented;
2221
    case TARGET_NR_sched_setparam:
2222
        {
2223
            struct sched_param *target_schp = (void *)arg2;
2224
            struct sched_param schp;
2225
            schp.sched_priority = tswap32(target_schp->sched_priority);
2226
            ret = get_errno(sched_setparam(arg1, &schp));
2227
        }
2228
        break;
2229
    case TARGET_NR_sched_getparam:
2230
        {
2231
            struct sched_param *target_schp = (void *)arg2;
2232
            struct sched_param schp;
2233
            ret = get_errno(sched_getparam(arg1, &schp));
2234
            if (!is_error(ret)) {
2235
                target_schp->sched_priority = tswap32(schp.sched_priority);
2236
            }
2237
        }
2238
        break;
2239
    case TARGET_NR_sched_setscheduler:
2240
        {
2241
            struct sched_param *target_schp = (void *)arg3;
2242
            struct sched_param schp;
2243
            schp.sched_priority = tswap32(target_schp->sched_priority);
2244
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2245
        }
2246
        break;
2247
    case TARGET_NR_sched_getscheduler:
2248
        ret = get_errno(sched_getscheduler(arg1));
2249
        break;
2250
    case TARGET_NR_sched_yield:
2251
        ret = get_errno(sched_yield());
2252
        break;
2253
    case TARGET_NR_sched_get_priority_max:
2254
        ret = get_errno(sched_get_priority_max(arg1));
2255
        break;
2256
    case TARGET_NR_sched_get_priority_min:
2257
        ret = get_errno(sched_get_priority_min(arg1));
2258
        break;
2259
    case TARGET_NR_sched_rr_get_interval:
2260
        {
2261
            struct target_timespec *target_ts = (void *)arg2;
2262
            struct timespec ts;
2263
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2264
            if (!is_error(ret)) {
2265
                target_ts->tv_sec = tswapl(ts.tv_sec);
2266
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2267
            }
2268
        }
2269
        break;
2270
    case TARGET_NR_nanosleep:
2271
        {
2272
            struct target_timespec *target_req = (void *)arg1;
2273
            struct target_timespec *target_rem = (void *)arg2;
2274
            struct timespec req, rem;
2275
            req.tv_sec = tswapl(target_req->tv_sec);
2276
            req.tv_nsec = tswapl(target_req->tv_nsec);
2277
            ret = get_errno(nanosleep(&req, &rem));
2278
            if (target_rem) {
2279
                target_rem->tv_sec = tswapl(rem.tv_sec);
2280
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2281
            }
2282
        }
2283
        break;
2284
    case TARGET_NR_setresuid:
2285
        ret = get_errno(setresuid(low2highuid(arg1), 
2286
                                  low2highuid(arg2), 
2287
                                  low2highuid(arg3)));
2288
        break;
2289
    case TARGET_NR_getresuid:
2290
        {
2291
            int ruid, euid, suid;
2292
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2293
            if (!is_error(ret)) {
2294
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2295
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2296
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2297
            }
2298
        }
2299
        break;
2300
    case TARGET_NR_setresgid:
2301
        ret = get_errno(setresgid(low2highgid(arg1), 
2302
                                  low2highgid(arg2), 
2303
                                  low2highgid(arg3)));
2304
        break;
2305
    case TARGET_NR_getresgid:
2306
        {
2307
            int rgid, egid, sgid;
2308
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2309
            if (!is_error(ret)) {
2310
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2311
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2312
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2313
            }
2314
        }
2315
        break;
2316
    case TARGET_NR_query_module:
2317
        goto unimplemented;
2318
    case TARGET_NR_nfsservctl:
2319
        goto unimplemented;
2320
    case TARGET_NR_prctl:
2321
        goto unimplemented;
2322
    case TARGET_NR_pread:
2323
        page_unprotect_range((void *)arg2, arg3);
2324
        ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2325
        break;
2326
    case TARGET_NR_pwrite:
2327
        ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2328
        break;
2329
    case TARGET_NR_chown:
2330
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2331
        break;
2332
    case TARGET_NR_getcwd:
2333
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2334
        break;
2335
    case TARGET_NR_capget:
2336
        goto unimplemented;
2337
    case TARGET_NR_capset:
2338
        goto unimplemented;
2339
    case TARGET_NR_sigaltstack:
2340
        goto unimplemented;
2341
    case TARGET_NR_sendfile:
2342
        goto unimplemented;
2343
    case TARGET_NR_getpmsg:
2344
        goto unimplemented;
2345
    case TARGET_NR_putpmsg:
2346
        goto unimplemented;
2347
    case TARGET_NR_vfork:
2348
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2349
        break;
2350
    case TARGET_NR_ugetrlimit:
2351
    {
2352
        struct rlimit rlim;
2353
        ret = get_errno(getrlimit(arg1, &rlim));
2354
        if (!is_error(ret)) {
2355
            struct target_rlimit *target_rlim = (void *)arg2;
2356
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2357
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
2358
        }
2359
        break;
2360
    }
2361
    case TARGET_NR_truncate64:
2362
        goto unimplemented;
2363
    case TARGET_NR_ftruncate64:
2364
        goto unimplemented;
2365
    case TARGET_NR_stat64:
2366
        ret = get_errno(stat(path((const char *)arg1), &st));
2367
        goto do_stat64;
2368
    case TARGET_NR_lstat64:
2369
        ret = get_errno(lstat(path((const char *)arg1), &st));
2370
        goto do_stat64;
2371
    case TARGET_NR_fstat64:
2372
        {
2373
            ret = get_errno(fstat(arg1, &st));
2374
        do_stat64:
2375
            if (!is_error(ret)) {
2376
                struct target_stat64 *target_st = (void *)arg2;
2377
                memset(target_st, 0, sizeof(struct target_stat64));
2378
                target_st->st_dev = tswap16(st.st_dev);
2379
                target_st->st_ino = tswap64(st.st_ino);
2380
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2381
                target_st->__st_ino = tswapl(st.st_ino);
2382
#endif
2383
                target_st->st_mode = tswap32(st.st_mode);
2384
                target_st->st_nlink = tswap32(st.st_nlink);
2385
                target_st->st_uid = tswapl(st.st_uid);
2386
                target_st->st_gid = tswapl(st.st_gid);
2387
                target_st->st_rdev = tswap16(st.st_rdev);
2388
                /* XXX: better use of kernel struct */
2389
                target_st->st_size = tswap64(st.st_size);
2390
                target_st->st_blksize = tswapl(st.st_blksize);
2391
                target_st->st_blocks = tswapl(st.st_blocks);
2392
                target_st->target_st_atime = tswapl(st.st_atime);
2393
                target_st->target_st_mtime = tswapl(st.st_mtime);
2394
                target_st->target_st_ctime = tswapl(st.st_ctime);
2395
            }
2396
        }
2397
        break;
2398

    
2399
    case TARGET_NR_lchown32:
2400
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2401
        break;
2402
    case TARGET_NR_getuid32:
2403
        ret = get_errno(getuid());
2404
        break;
2405
    case TARGET_NR_getgid32:
2406
        ret = get_errno(getgid());
2407
        break;
2408
    case TARGET_NR_geteuid32:
2409
        ret = get_errno(geteuid());
2410
        break;
2411
    case TARGET_NR_getegid32:
2412
        ret = get_errno(getegid());
2413
        break;
2414
    case TARGET_NR_setreuid32:
2415
        ret = get_errno(setreuid(arg1, arg2));
2416
        break;
2417
    case TARGET_NR_setregid32:
2418
        ret = get_errno(setregid(arg1, arg2));
2419
        break;
2420
    case TARGET_NR_getgroups32:
2421
        goto unimplemented;
2422
    case TARGET_NR_setgroups32:
2423
        goto unimplemented;
2424
    case TARGET_NR_fchown32:
2425
        ret = get_errno(fchown(arg1, arg2, arg3));
2426
        break;
2427
    case TARGET_NR_setresuid32:
2428
        ret = get_errno(setresuid(arg1, arg2, arg3));
2429
        break;
2430
    case TARGET_NR_getresuid32:
2431
        {
2432
            int ruid, euid, suid;
2433
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2434
            if (!is_error(ret)) {
2435
                *(uint32_t *)arg1 = tswap32(ruid);
2436
                *(uint32_t *)arg2 = tswap32(euid);
2437
                *(uint32_t *)arg3 = tswap32(suid);
2438
            }
2439
        }
2440
        break;
2441
    case TARGET_NR_setresgid32:
2442
        ret = get_errno(setresgid(arg1, arg2, arg3));
2443
        break;
2444
    case TARGET_NR_getresgid32:
2445
        {
2446
            int rgid, egid, sgid;
2447
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2448
            if (!is_error(ret)) {
2449
                *(uint32_t *)arg1 = tswap32(rgid);
2450
                *(uint32_t *)arg2 = tswap32(egid);
2451
                *(uint32_t *)arg3 = tswap32(sgid);
2452
            }
2453
        }
2454
        break;
2455
    case TARGET_NR_chown32:
2456
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2457
        break;
2458
    case TARGET_NR_setuid32:
2459
        ret = get_errno(setuid(arg1));
2460
        break;
2461
    case TARGET_NR_setgid32:
2462
        ret = get_errno(setgid(arg1));
2463
        break;
2464
    case TARGET_NR_setfsuid32:
2465
        ret = get_errno(setfsuid(arg1));
2466
        break;
2467
    case TARGET_NR_setfsgid32:
2468
        ret = get_errno(setfsgid(arg1));
2469
        break;
2470
    case TARGET_NR_pivot_root:
2471
        goto unimplemented;
2472
    case TARGET_NR_mincore:
2473
        goto unimplemented;
2474
    case TARGET_NR_madvise:
2475
        goto unimplemented;
2476
#if TARGET_LONG_BITS == 32
2477
    case TARGET_NR_fcntl64:
2478
    {
2479
        struct flock64 fl;
2480
        struct target_flock64 *target_fl = (void *)arg3;
2481

    
2482
        switch(arg2) {
2483
        case F_GETLK64:
2484
            ret = get_errno(fcntl(arg1, arg2, &fl));
2485
            if (ret == 0) {
2486
                target_fl->l_type = tswap16(fl.l_type);
2487
                target_fl->l_whence = tswap16(fl.l_whence);
2488
                target_fl->l_start = tswap64(fl.l_start);
2489
                target_fl->l_len = tswap64(fl.l_len);
2490
                target_fl->l_pid = tswapl(fl.l_pid);
2491
            }
2492
            break;
2493

    
2494
        case F_SETLK64:
2495
        case F_SETLKW64:
2496
            fl.l_type = tswap16(target_fl->l_type);
2497
            fl.l_whence = tswap16(target_fl->l_whence);
2498
            fl.l_start = tswap64(target_fl->l_start);
2499
            fl.l_len = tswap64(target_fl->l_len);
2500
            fl.l_pid = tswapl(target_fl->l_pid);
2501
            ret = get_errno(fcntl(arg1, arg2, &fl));
2502
            break;
2503
        default:
2504
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
2505
            break;
2506
        }
2507
        break;
2508
    }
2509
#endif
2510
    case TARGET_NR_security:
2511
        goto unimplemented;
2512
    case TARGET_NR_gettid:
2513
        ret = get_errno(gettid());
2514
        break;
2515
    case TARGET_NR_readahead:
2516
        goto unimplemented;
2517
    case TARGET_NR_setxattr:
2518
    case TARGET_NR_lsetxattr:
2519
    case TARGET_NR_fsetxattr:
2520
    case TARGET_NR_getxattr:
2521
    case TARGET_NR_lgetxattr:
2522
    case TARGET_NR_fgetxattr:
2523
    case TARGET_NR_listxattr:
2524
    case TARGET_NR_llistxattr:
2525
    case TARGET_NR_flistxattr:
2526
    case TARGET_NR_removexattr:
2527
    case TARGET_NR_lremovexattr:
2528
    case TARGET_NR_fremovexattr:
2529
        goto unimplemented_nowarn;
2530
    case TARGET_NR_set_thread_area:
2531
    case TARGET_NR_get_thread_area:
2532
        goto unimplemented_nowarn;
2533
    default:
2534
    unimplemented:
2535
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2536
    unimplemented_nowarn:
2537
        ret = -ENOSYS;
2538
        break;
2539
    }
2540
 fail:
2541
    return ret;
2542
}
2543