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/*
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 *  Linux syscalls
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 * 
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
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 *  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,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  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>
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#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 <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>
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#include <sys/socket.h>
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#include <sys/uio.h>
41
//#include <sys/user.h>
42

    
43
#define termios host_termios
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#define winsize host_winsize
45
#define termio host_termio
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#define sgttyb host_sgttyb /* same as target */
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#define tchars host_tchars /* same as target */
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#define ltchars host_ltchars /* same as target */
49

    
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#include <linux/termios.h>
51
#include <linux/unistd.h>
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#include <linux/utsname.h>
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#include <linux/cdrom.h>
54
#include <linux/hdreg.h>
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#include <linux/soundcard.h>
56
#include <linux/dirent.h>
57

    
58
#include "gemu.h"
59

    
60
//#define DEBUG
61

    
62
#ifndef PAGE_SIZE
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#define PAGE_SIZE 4096
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#define PAGE_MASK ~(PAGE_SIZE - 1)
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#endif
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

    
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#include "syscall_defs.h"
72

    
73
#ifdef TARGET_I386
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#include "cpu-i386.h"
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#include "syscall-i386.h"
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#endif
77

    
78
#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
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#define __NR_sys_getdents __NR_getdents
83
#define __NR_sys_getdents64 __NR_getdents64
84

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

    
101
static inline long get_errno(long ret)
102
{
103
    if (ret == -1)
104
        return -errno;
105
    else
106
        return ret;
107
}
108

    
109
static inline int is_error(long ret)
110
{
111
    return (unsigned long)ret >= (unsigned long)(-4096);
112
}
113

    
114
static char *target_brk;
115
static char *target_original_brk;
116

    
117
void target_set_brk(char *new_brk)
118
{
119
    target_brk = new_brk;
120
    target_original_brk = new_brk;
121
}
122

    
123
static long do_brk(char *new_brk)
124
{
125
    char *brk_page;
126
    long mapped_addr;
127
    int        new_alloc_size;
128

    
129
    if (!new_brk)
130
        return (long)target_brk;
131
    if (new_brk < target_original_brk)
132
        return -ENOMEM;
133
    
134
    brk_page = (char *)(((unsigned long)target_brk + PAGE_SIZE - 1) & PAGE_MASK);
135

    
136
    /* If the new brk is less than this, set it and we're done... */
137
    if (new_brk < brk_page) {
138
        target_brk = new_brk;
139
            return (long)target_brk;
140
    }
141

    
142
    /* We need to allocate more memory after the brk... */
143
    new_alloc_size = ((new_brk - brk_page + 1)+(PAGE_SIZE-1)) & PAGE_MASK;
144
    mapped_addr = get_errno((long)mmap((caddr_t)brk_page, new_alloc_size, 
145
                                       PROT_READ|PROT_WRITE,
146
                                       MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
147
    
148
    if (is_error(mapped_addr)) {
149
        return mapped_addr;
150
    } else {
151
        target_brk = new_brk;
152
            return (long)target_brk;
153
    }
154
}
155

    
156
static inline fd_set *target_to_host_fds(fd_set *fds, 
157
                                         target_long *target_fds, int n)
158
{
159
#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
160
    return (fd_set *)target_fds;
161
#else
162
    int i, b;
163
    if (target_fds) {
164
        FD_ZERO(fds);
165
        for(i = 0;i < n; i++) {
166
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
167
                 (i & (TARGET_LONG_BITS - 1))) & 1;
168
            if (b)
169
                FD_SET(i, fds);
170
        }
171
        return fds;
172
    } else {
173
        return NULL;
174
    }
175
#endif
176
}
177

    
178
static inline void host_to_target_fds(target_long *target_fds, 
179
                                      fd_set *fds, int n)
180
{
181
#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
182
    /* nothing to do */
183
#else
184
    int i, nw, j, k;
185
    target_long v;
186

    
187
    if (target_fds) {
188
        nw = n / TARGET_LONG_BITS;
189
        k = 0;
190
        for(i = 0;i < nw; i++) {
191
            v = 0;
192
            for(j = 0; j < TARGET_LONG_BITS; j++) {
193
                v |= ((FD_ISSET(k, fds) != 0) << j);
194
                k++;
195
            }
196
            target_fds[i] = tswapl(v);
197
        }
198
    }
199
#endif
200
}
201

    
202
/* XXX: incorrect for some archs */
203
static void host_to_target_old_sigset(target_ulong *old_sigset, 
204
                                      const sigset_t *sigset)
205
{
206
    *old_sigset = tswap32(*(unsigned long *)sigset & 0xffffffff);
207
}
208

    
209
static void target_to_host_old_sigset(sigset_t *sigset, 
210
                                      const target_ulong *old_sigset)
211
{
212
    sigemptyset(sigset);
213
    *(unsigned long *)sigset = tswapl(*old_sigset);
214
}
215

    
216

    
217
static long do_select(long n, 
218
                      target_long *target_rfds, target_long *target_wfds, 
219
                      target_long *target_efds, struct target_timeval *target_tv)
220
{
221
    fd_set rfds, wfds, efds;
222
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
223
    struct timeval tv, *tv_ptr;
224
    long ret;
225

    
226
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
227
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
228
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
229
            
230
    if (target_tv) {
231
        tv.tv_sec = tswapl(target_tv->tv_sec);
232
        tv.tv_usec = tswapl(target_tv->tv_usec);
233
        tv_ptr = &tv;
234
    } else {
235
        tv_ptr = NULL;
236
    }
237
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
238
    if (!is_error(ret)) {
239
        host_to_target_fds(target_rfds, rfds_ptr, n);
240
        host_to_target_fds(target_wfds, wfds_ptr, n);
241
        host_to_target_fds(target_efds, efds_ptr, n);
242

    
243
        if (target_tv) {
244
            target_tv->tv_sec = tswapl(tv.tv_sec);
245
            target_tv->tv_usec = tswapl(tv.tv_usec);
246
        }
247
    }
248
    return ret;
249
}
250

    
251
static long do_socketcall(int num, long *vptr)
252
{
253
    long ret;
254

    
255
    switch(num) {
256
    case SOCKOP_socket:
257
        ret = get_errno(socket(vptr[0], vptr[1], vptr[2]));
258
        break;
259
    case SOCKOP_bind:
260
        ret = get_errno(bind(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
261
        break;
262
    case SOCKOP_connect:
263
        ret = get_errno(connect(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
264
        break;
265
    case SOCKOP_listen:
266
        ret = get_errno(listen(vptr[0], vptr[1]));
267
        break;
268
    case SOCKOP_accept:
269
        {
270
            socklen_t size;
271
            size = tswap32(*(int32_t *)vptr[2]);
272
            ret = get_errno(accept(vptr[0], (struct sockaddr *)vptr[1], &size));
273
            if (!is_error(ret)) 
274
                *(int32_t *)vptr[2] = size;
275
        }
276
        break;
277
    case SOCKOP_getsockname:
278
        {
279
            socklen_t size;
280
            size = tswap32(*(int32_t *)vptr[2]);
281
            ret = get_errno(getsockname(vptr[0], (struct sockaddr *)vptr[1], &size));
282
            if (!is_error(ret)) 
283
                *(int32_t *)vptr[2] = size;
284
        }
285
        break;
286
    case SOCKOP_getpeername:
287
        {
288
            socklen_t size;
289
            size = tswap32(*(int32_t *)vptr[2]);
290
            ret = get_errno(getpeername(vptr[0], (struct sockaddr *)vptr[1], &size));
291
            if (!is_error(ret)) 
292
                *(int32_t *)vptr[2] = size;
293
        }
294
        break;
295
    case SOCKOP_socketpair:
296
        {
297
            int tab[2];
298
            int32_t *target_tab = (int32_t *)vptr[3];
299
            ret = get_errno(socketpair(vptr[0], vptr[1], vptr[2], tab));
300
            if (!is_error(ret)) {
301
                target_tab[0] = tswap32(tab[0]);
302
                target_tab[1] = tswap32(tab[1]);
303
            }
304
        }
305
        break;
306
    case SOCKOP_send:
307
        ret = get_errno(send(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
308
        break;
309
    case SOCKOP_recv:
310
        ret = get_errno(recv(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
311
        break;
312
    case SOCKOP_sendto:
313
        ret = get_errno(sendto(vptr[0], (void *)vptr[1], vptr[2], vptr[3], 
314
                               (struct sockaddr *)vptr[4], vptr[5]));
315
        break;
316
    case SOCKOP_recvfrom:
317
        {
318
            socklen_t size;
319
            size = tswap32(*(int32_t *)vptr[5]);
320
            ret = get_errno(recvfrom(vptr[0], (void *)vptr[1], vptr[2], 
321
                                     vptr[3], (struct sockaddr *)vptr[4], &size));
322
            if (!is_error(ret)) 
323
                *(int32_t *)vptr[5] = size;
324
        }
325
        break;
326
    case SOCKOP_shutdown:
327
        ret = get_errno(shutdown(vptr[0], vptr[1]));
328
        break;
329
    case SOCKOP_sendmsg:
330
    case SOCKOP_recvmsg:
331
        {
332
            int fd;
333
            struct target_msghdr *msgp;
334
            struct msghdr msg;
335
            int flags, count, i;
336
            struct iovec *vec;
337
            struct target_iovec *target_vec;
338

    
339
            msgp = (void *)vptr[1];
340
            msg.msg_name = (void *)tswapl(msgp->msg_name);
341
            msg.msg_namelen = tswapl(msgp->msg_namelen);
342
            msg.msg_control = (void *)tswapl(msgp->msg_control);
343
            msg.msg_controllen = tswapl(msgp->msg_controllen);
344
            msg.msg_flags = tswap32(msgp->msg_flags);
345

    
346
            count = tswapl(msgp->msg_iovlen);
347
            vec = alloca(count * sizeof(struct iovec));
348
            target_vec = (void *)tswapl(msgp->msg_iov);
349
            for(i = 0;i < count; i++) {
350
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
351
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
352
            }
353
            msg.msg_iovlen = count;
354
            msg.msg_iov = vec;
355

    
356
            fd = vptr[0];
357
            flags = vptr[2];
358
            if (num == SOCKOP_sendmsg)
359
                ret = sendmsg(fd, &msg, flags);
360
            else
361
                ret = recvmsg(fd, &msg, flags);
362
            ret = get_errno(ret);
363
        }
364
        break;
365
    case SOCKOP_setsockopt:
366
    case SOCKOP_getsockopt:
367
    default:
368
        gemu_log("Unsupported socketcall: %d\n", num);
369
        ret = -ENOSYS;
370
        break;
371
    }
372
    return ret;
373
}
374

    
375
/* kernel structure types definitions */
376
#define IFNAMSIZ        16
377

    
378
#define STRUCT(name, list...) STRUCT_ ## name,
379
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
380
enum {
381
#include "syscall_types.h"
382
};
383
#undef STRUCT
384
#undef STRUCT_SPECIAL
385

    
386
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
387
#define STRUCT_SPECIAL(name)
388
#include "syscall_types.h"
389
#undef STRUCT
390
#undef STRUCT_SPECIAL
391

    
392
typedef struct IOCTLEntry {
393
    int target_cmd;
394
    int host_cmd;
395
    const char *name;
396
    int access;
397
    const argtype arg_type[5];
398
} IOCTLEntry;
399

    
400
#define IOC_R 0x0001
401
#define IOC_W 0x0002
402
#define IOC_RW (IOC_R | IOC_W)
403

    
404
#define MAX_STRUCT_SIZE 4096
405

    
406
const IOCTLEntry ioctl_entries[] = {
407
#define IOCTL(cmd, access, types...) \
408
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
409
#include "ioctls.h"
410
    { 0, 0, },
411
};
412

    
413
static long do_ioctl(long fd, long cmd, long arg)
414
{
415
    const IOCTLEntry *ie;
416
    const argtype *arg_type;
417
    long ret;
418
    uint8_t buf_temp[MAX_STRUCT_SIZE];
419

    
420
    ie = ioctl_entries;
421
    for(;;) {
422
        if (ie->target_cmd == 0) {
423
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
424
            return -ENOSYS;
425
        }
426
        if (ie->target_cmd == cmd)
427
            break;
428
        ie++;
429
    }
430
    arg_type = ie->arg_type;
431
#ifdef DEBUG
432
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
433
#endif
434
    switch(arg_type[0]) {
435
    case TYPE_NULL:
436
        /* no argument */
437
        ret = get_errno(ioctl(fd, ie->host_cmd));
438
        break;
439
    case TYPE_PTRVOID:
440
    case TYPE_INT:
441
        /* int argment */
442
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
443
        break;
444
    case TYPE_PTR:
445
        arg_type++;
446
        switch(ie->access) {
447
        case IOC_R:
448
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
449
            if (!is_error(ret)) {
450
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
451
            }
452
            break;
453
        case IOC_W:
454
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
455
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
456
            break;
457
        default:
458
        case IOC_RW:
459
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
460
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
461
            if (!is_error(ret)) {
462
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
463
            }
464
            break;
465
        }
466
        break;
467
    default:
468
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
469
        ret = -ENOSYS;
470
        break;
471
    }
472
    return ret;
473
}
474

    
475
bitmask_transtbl iflag_tbl[] = {
476
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
477
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
478
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
479
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
480
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
481
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
482
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
483
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
484
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
485
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
486
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
487
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
488
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
489
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
490
        { 0, 0, 0, 0 }
491
};
492

    
493
bitmask_transtbl oflag_tbl[] = {
494
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
495
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
496
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
497
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
498
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
499
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
500
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
501
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
502
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
503
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
504
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
505
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
506
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
507
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
508
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
509
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
510
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
511
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
512
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
513
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
514
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
515
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
516
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
517
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
518
        { 0, 0, 0, 0 }
519
};
520

    
521
bitmask_transtbl cflag_tbl[] = {
522
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
523
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
524
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
525
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
526
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
527
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
528
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
529
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
530
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
531
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
532
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
533
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
534
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
535
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
536
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
537
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
538
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
539
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
540
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
541
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
542
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
543
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
544
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
545
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
546
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
547
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
548
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
549
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
550
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
551
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
552
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
553
        { 0, 0, 0, 0 }
554
};
555

    
556
bitmask_transtbl lflag_tbl[] = {
557
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
558
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
559
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
560
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
561
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
562
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
563
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
564
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
565
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
566
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
567
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
568
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
569
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
570
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
571
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
572
        { 0, 0, 0, 0 }
573
};
574

    
575
static void target_to_host_termios (void *dst, const void *src)
576
{
577
    struct host_termios *host = dst;
578
    const struct target_termios *target = src;
579
    
580
    host->c_iflag = 
581
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
582
    host->c_oflag = 
583
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
584
    host->c_cflag = 
585
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
586
    host->c_lflag = 
587
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
588
    host->c_line = target->c_line;
589
    
590
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
591
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
592
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
593
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
594
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
595
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
596
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
597
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
598
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
599
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
600
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
601
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
602
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
603
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
604
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
605
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
606
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
607
}
608
  
609
static void host_to_target_termios (void *dst, const void *src)
610
{
611
    struct target_termios *target = dst;
612
    const struct host_termios *host = src;
613

    
614
    target->c_iflag = 
615
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
616
    target->c_oflag = 
617
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
618
    target->c_cflag = 
619
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
620
    target->c_lflag = 
621
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
622
    target->c_line = host->c_line;
623
  
624
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
625
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
626
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
627
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
628
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
629
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
630
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
631
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
632
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
633
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
634
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
635
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
636
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
637
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
638
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
639
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
640
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
641
}
642

    
643
StructEntry struct_termios_def = {
644
    .convert = { host_to_target_termios, target_to_host_termios },
645
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
646
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
647
};
648

    
649
#ifdef TARGET_I386
650

    
651
/* NOTE: there is really one LDT for all the threads */
652
uint8_t *ldt_table;
653

    
654
static int read_ldt(void *ptr, unsigned long bytecount)
655
{
656
    int size;
657

    
658
    if (!ldt_table)
659
        return 0;
660
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
661
    if (size > bytecount)
662
        size = bytecount;
663
    memcpy(ptr, ldt_table, size);
664
    return size;
665
}
666

    
667
/* XXX: add locking support */
668
static int write_ldt(CPUX86State *env, 
669
                     void *ptr, unsigned long bytecount, int oldmode)
670
{
671
    struct target_modify_ldt_ldt_s ldt_info;
672
    int seg_32bit, contents, read_exec_only, limit_in_pages;
673
    int seg_not_present, useable;
674
    uint32_t *lp, entry_1, entry_2;
675

    
676
    if (bytecount != sizeof(ldt_info))
677
        return -EINVAL;
678
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
679
    tswap32s(&ldt_info.entry_number);
680
    tswapls((long *)&ldt_info.base_addr);
681
    tswap32s(&ldt_info.limit);
682
    tswap32s(&ldt_info.flags);
683
    
684
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
685
        return -EINVAL;
686
    seg_32bit = ldt_info.flags & 1;
687
    contents = (ldt_info.flags >> 1) & 3;
688
    read_exec_only = (ldt_info.flags >> 3) & 1;
689
    limit_in_pages = (ldt_info.flags >> 4) & 1;
690
    seg_not_present = (ldt_info.flags >> 5) & 1;
691
    useable = (ldt_info.flags >> 6) & 1;
692

    
693
    if (contents == 3) {
694
        if (oldmode)
695
            return -EINVAL;
696
        if (seg_not_present == 0)
697
            return -EINVAL;
698
    }
699
    /* allocate the LDT */
700
    if (!ldt_table) {
701
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
702
        if (!ldt_table)
703
            return -ENOMEM;
704
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
705
        env->ldt.base = ldt_table;
706
        env->ldt.limit = 0xffff;
707
    }
708

    
709
    /* NOTE: same code as Linux kernel */
710
    /* Allow LDTs to be cleared by the user. */
711
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
712
        if (oldmode ||
713
            (contents == 0                &&
714
             read_exec_only == 1        &&
715
             seg_32bit == 0                &&
716
             limit_in_pages == 0        &&
717
             seg_not_present == 1        &&
718
             useable == 0 )) {
719
            entry_1 = 0;
720
            entry_2 = 0;
721
            goto install;
722
        }
723
    }
724
    
725
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
726
        (ldt_info.limit & 0x0ffff);
727
    entry_2 = (ldt_info.base_addr & 0xff000000) |
728
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
729
        (ldt_info.limit & 0xf0000) |
730
        ((read_exec_only ^ 1) << 9) |
731
        (contents << 10) |
732
        ((seg_not_present ^ 1) << 15) |
733
        (seg_32bit << 22) |
734
        (limit_in_pages << 23) |
735
        0x7000;
736
    if (!oldmode)
737
        entry_2 |= (useable << 20);
738
    
739
    /* Install the new entry ...  */
740
install:
741
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
742
    lp[0] = tswap32(entry_1);
743
    lp[1] = tswap32(entry_2);
744
    return 0;
745
}
746

    
747
/* specific and weird i386 syscalls */
748
int gemu_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
749
{
750
    int ret = -ENOSYS;
751
    
752
    switch (func) {
753
    case 0:
754
        ret = read_ldt(ptr, bytecount);
755
        break;
756
    case 1:
757
        ret = write_ldt(env, ptr, bytecount, 1);
758
        break;
759
    case 0x11:
760
        ret = write_ldt(env, ptr, bytecount, 0);
761
        break;
762
    }
763
    return ret;
764
}
765

    
766
/* this stack is the equivalent of the kernel stack associated with a
767
   thread/process */
768
#define NEW_STACK_SIZE 8192
769

    
770
static int clone_func(void *arg)
771
{
772
    CPUX86State *env = arg;
773
    cpu_loop(env);
774
    /* never exits */
775
    return 0;
776
}
777

    
778
int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
779
{
780
    int ret;
781
    uint8_t *new_stack;
782
    CPUX86State *new_env;
783
    
784
    if (flags & CLONE_VM) {
785
        if (!newsp)
786
            newsp = env->regs[R_ESP];
787
        new_stack = malloc(NEW_STACK_SIZE);
788
        
789
        /* we create a new CPU instance. */
790
        new_env = cpu_x86_init();
791
        memcpy(new_env, env, sizeof(CPUX86State));
792
        new_env->regs[R_ESP] = newsp;
793
        new_env->regs[R_EAX] = 0;
794
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
795
    } else {
796
        /* if no CLONE_VM, we consider it is a fork */
797
        if ((flags & ~CSIGNAL) != 0)
798
            return -EINVAL;
799
        ret = fork();
800
    }
801
    return ret;
802
}
803

    
804
#endif
805

    
806

    
807
void syscall_init(void)
808
{
809
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
810
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
811
#include "syscall_types.h"
812
#undef STRUCT
813
#undef STRUCT_SPECIAL
814
}
815
                                 
816
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
817
                long arg4, long arg5, long arg6)
818
{
819
    long ret;
820
    struct stat st;
821
    struct kernel_statfs *stfs;
822
    
823
#ifdef DEBUG
824
    gemu_log("syscall %d\n", num);
825
#endif
826
    switch(num) {
827
    case TARGET_NR_exit:
828
#ifdef HAVE_GPROF
829
        _mcleanup();
830
#endif
831
        /* XXX: should free thread stack and CPU env */
832
        _exit(arg1);
833
        ret = 0; /* avoid warning */
834
        break;
835
    case TARGET_NR_read:
836
        ret = get_errno(read(arg1, (void *)arg2, arg3));
837
        break;
838
    case TARGET_NR_write:
839
        ret = get_errno(write(arg1, (void *)arg2, arg3));
840
        break;
841
    case TARGET_NR_open:
842
        ret = get_errno(open((const char *)arg1, arg2, arg3));
843
        break;
844
    case TARGET_NR_close:
845
        ret = get_errno(close(arg1));
846
        break;
847
    case TARGET_NR_brk:
848
        ret = do_brk((char *)arg1);
849
        break;
850
    case TARGET_NR_fork:
851
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
852
        break;
853
    case TARGET_NR_waitpid:
854
        {
855
            int *status = (int *)arg2;
856
            ret = get_errno(waitpid(arg1, status, arg3));
857
            if (!is_error(ret) && status)
858
                tswapls((long *)&status);
859
        }
860
        break;
861
    case TARGET_NR_creat:
862
        ret = get_errno(creat((const char *)arg1, arg2));
863
        break;
864
    case TARGET_NR_link:
865
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
866
        break;
867
    case TARGET_NR_unlink:
868
        ret = get_errno(unlink((const char *)arg1));
869
        break;
870
    case TARGET_NR_execve:
871
        ret = get_errno(execve((const char *)arg1, (void *)arg2, (void *)arg3));
872
        break;
873
    case TARGET_NR_chdir:
874
        ret = get_errno(chdir((const char *)arg1));
875
        break;
876
    case TARGET_NR_time:
877
        {
878
            int *time_ptr = (int *)arg1;
879
            ret = get_errno(time((time_t *)time_ptr));
880
            if (!is_error(ret) && time_ptr)
881
                tswap32s(time_ptr);
882
        }
883
        break;
884
    case TARGET_NR_mknod:
885
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
886
        break;
887
    case TARGET_NR_chmod:
888
        ret = get_errno(chmod((const char *)arg1, arg2));
889
        break;
890
    case TARGET_NR_lchown:
891
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
892
        break;
893
    case TARGET_NR_break:
894
        goto unimplemented;
895
    case TARGET_NR_oldstat:
896
        goto unimplemented;
897
    case TARGET_NR_lseek:
898
        ret = get_errno(lseek(arg1, arg2, arg3));
899
        break;
900
    case TARGET_NR_getpid:
901
        ret = get_errno(getpid());
902
        break;
903
    case TARGET_NR_mount:
904
        /* need to look at the data field */
905
        goto unimplemented;
906
    case TARGET_NR_umount:
907
        ret = get_errno(umount((const char *)arg1));
908
        break;
909
    case TARGET_NR_setuid:
910
        ret = get_errno(setuid(arg1));
911
        break;
912
    case TARGET_NR_getuid:
913
        ret = get_errno(getuid());
914
        break;
915
    case TARGET_NR_stime:
916
        {
917
            int *time_ptr = (int *)arg1;
918
            if (time_ptr)
919
                tswap32s(time_ptr);
920
            ret = get_errno(stime((time_t *)time_ptr));
921
        }
922
        break;
923
    case TARGET_NR_ptrace:
924
        goto unimplemented;
925
    case TARGET_NR_alarm:
926
        ret = alarm(arg1);
927
        break;
928
    case TARGET_NR_oldfstat:
929
        goto unimplemented;
930
    case TARGET_NR_pause:
931
        ret = get_errno(pause());
932
        break;
933
    case TARGET_NR_utime:
934
        goto unimplemented;
935
    case TARGET_NR_stty:
936
        goto unimplemented;
937
    case TARGET_NR_gtty:
938
        goto unimplemented;
939
    case TARGET_NR_access:
940
        ret = get_errno(access((const char *)arg1, arg2));
941
        break;
942
    case TARGET_NR_nice:
943
        ret = get_errno(nice(arg1));
944
        break;
945
    case TARGET_NR_ftime:
946
        goto unimplemented;
947
    case TARGET_NR_sync:
948
        sync();
949
        ret = 0;
950
        break;
951
    case TARGET_NR_kill:
952
        ret = get_errno(kill(arg1, arg2));
953
        break;
954
    case TARGET_NR_rename:
955
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
956
        break;
957
    case TARGET_NR_mkdir:
958
        ret = get_errno(mkdir((const char *)arg1, arg2));
959
        break;
960
    case TARGET_NR_rmdir:
961
        ret = get_errno(rmdir((const char *)arg1));
962
        break;
963
    case TARGET_NR_dup:
964
        ret = get_errno(dup(arg1));
965
        break;
966
    case TARGET_NR_pipe:
967
        {
968
            int *pipe_ptr = (int *)arg1;
969
            ret = get_errno(pipe(pipe_ptr));
970
            if (!is_error(ret)) {
971
                tswap32s(&pipe_ptr[0]);
972
                tswap32s(&pipe_ptr[1]);
973
            }
974
        }
975
        break;
976
    case TARGET_NR_times:
977
        goto unimplemented;
978
    case TARGET_NR_prof:
979
        goto unimplemented;
980
    case TARGET_NR_setgid:
981
        ret = get_errno(setgid(arg1));
982
        break;
983
    case TARGET_NR_getgid:
984
        ret = get_errno(getgid());
985
        break;
986
    case TARGET_NR_signal:
987
        goto unimplemented;
988
    case TARGET_NR_geteuid:
989
        ret = get_errno(geteuid());
990
        break;
991
    case TARGET_NR_getegid:
992
        ret = get_errno(getegid());
993
        break;
994
    case TARGET_NR_acct:
995
        goto unimplemented;
996
    case TARGET_NR_umount2:
997
        ret = get_errno(umount2((const char *)arg1, arg2));
998
        break;
999
    case TARGET_NR_lock:
1000
        goto unimplemented;
1001
    case TARGET_NR_ioctl:
1002
        ret = do_ioctl(arg1, arg2, arg3);
1003
        break;
1004
    case TARGET_NR_fcntl:
1005
        switch(arg2) {
1006
        case F_GETLK:
1007
        case F_SETLK:
1008
        case F_SETLKW:
1009
            goto unimplemented;
1010
        default:
1011
            ret = get_errno(fcntl(arg1, arg2, arg3));
1012
            break;
1013
        }
1014
        break;
1015
    case TARGET_NR_mpx:
1016
        goto unimplemented;
1017
    case TARGET_NR_setpgid:
1018
        ret = get_errno(setpgid(arg1, arg2));
1019
        break;
1020
    case TARGET_NR_ulimit:
1021
        goto unimplemented;
1022
    case TARGET_NR_oldolduname:
1023
        goto unimplemented;
1024
    case TARGET_NR_umask:
1025
        ret = get_errno(umask(arg1));
1026
        break;
1027
    case TARGET_NR_chroot:
1028
        ret = get_errno(chroot((const char *)arg1));
1029
        break;
1030
    case TARGET_NR_ustat:
1031
        goto unimplemented;
1032
    case TARGET_NR_dup2:
1033
        ret = get_errno(dup2(arg1, arg2));
1034
        break;
1035
    case TARGET_NR_getppid:
1036
        ret = get_errno(getppid());
1037
        break;
1038
    case TARGET_NR_getpgrp:
1039
        ret = get_errno(getpgrp());
1040
        break;
1041
    case TARGET_NR_setsid:
1042
        ret = get_errno(setsid());
1043
        break;
1044
    case TARGET_NR_sigaction:
1045
#if 1
1046
        {
1047
            ret = 0;
1048
        }
1049
        break;
1050
#else
1051
        goto unimplemented;
1052
#endif
1053
    case TARGET_NR_sgetmask:
1054
        goto unimplemented;
1055
    case TARGET_NR_ssetmask:
1056
        goto unimplemented;
1057
    case TARGET_NR_setreuid:
1058
        ret = get_errno(setreuid(arg1, arg2));
1059
        break;
1060
    case TARGET_NR_setregid:
1061
        ret = get_errno(setregid(arg1, arg2));
1062
        break;
1063
    case TARGET_NR_sigsuspend:
1064
        goto unimplemented;
1065
    case TARGET_NR_sigpending:
1066
        goto unimplemented;
1067
    case TARGET_NR_sethostname:
1068
        ret = get_errno(sethostname((const char *)arg1, arg2));
1069
        break;
1070
    case TARGET_NR_setrlimit:
1071
        goto unimplemented;
1072
    case TARGET_NR_getrlimit:
1073
        goto unimplemented;
1074
    case TARGET_NR_getrusage:
1075
        goto unimplemented;
1076
    case TARGET_NR_gettimeofday:
1077
        {
1078
            struct target_timeval *target_tv = (void *)arg1;
1079
            struct timeval tv;
1080
            ret = get_errno(gettimeofday(&tv, NULL));
1081
            if (!is_error(ret)) {
1082
                target_tv->tv_sec = tswapl(tv.tv_sec);
1083
                target_tv->tv_usec = tswapl(tv.tv_usec);
1084
            }
1085
        }
1086
        break;
1087
    case TARGET_NR_settimeofday:
1088
        {
1089
            struct target_timeval *target_tv = (void *)arg1;
1090
            struct timeval tv;
1091
            tv.tv_sec = tswapl(target_tv->tv_sec);
1092
            tv.tv_usec = tswapl(target_tv->tv_usec);
1093
            ret = get_errno(settimeofday(&tv, NULL));
1094
        }
1095
        break;
1096
    case TARGET_NR_getgroups:
1097
        goto unimplemented;
1098
    case TARGET_NR_setgroups:
1099
        goto unimplemented;
1100
    case TARGET_NR_select:
1101
        goto unimplemented;
1102
    case TARGET_NR_symlink:
1103
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1104
        break;
1105
    case TARGET_NR_oldlstat:
1106
        goto unimplemented;
1107
    case TARGET_NR_readlink:
1108
        ret = get_errno(readlink((const char *)arg1, (char *)arg2, arg3));
1109
        break;
1110
    case TARGET_NR_uselib:
1111
        goto unimplemented;
1112
    case TARGET_NR_swapon:
1113
        ret = get_errno(swapon((const char *)arg1, arg2));
1114
        break;
1115
    case TARGET_NR_reboot:
1116
        goto unimplemented;
1117
    case TARGET_NR_readdir:
1118
        goto unimplemented;
1119
#ifdef TARGET_I386
1120
    case TARGET_NR_mmap:
1121
        {
1122
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1123
            vptr = (uint32_t *)arg1;
1124
            v1 = tswap32(vptr[0]);
1125
            v2 = tswap32(vptr[1]);
1126
            v3 = tswap32(vptr[2]);
1127
            v4 = tswap32(vptr[3]);
1128
            v5 = tswap32(vptr[4]);
1129
            v6 = tswap32(vptr[5]);
1130
            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
1131
        }
1132
        break;
1133
#endif
1134
#ifdef TARGET_I386
1135
    case TARGET_NR_mmap2:
1136
#else
1137
    case TARGET_NR_mmap:
1138
#endif
1139
        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
1140
        break;
1141
    case TARGET_NR_munmap:
1142
        ret = get_errno(munmap((void *)arg1, arg2));
1143
        break;
1144
    case TARGET_NR_truncate:
1145
        ret = get_errno(truncate((const char *)arg1, arg2));
1146
        break;
1147
    case TARGET_NR_ftruncate:
1148
        ret = get_errno(ftruncate(arg1, arg2));
1149
        break;
1150
    case TARGET_NR_fchmod:
1151
        ret = get_errno(fchmod(arg1, arg2));
1152
        break;
1153
    case TARGET_NR_fchown:
1154
        ret = get_errno(fchown(arg1, arg2, arg3));
1155
        break;
1156
    case TARGET_NR_getpriority:
1157
        ret = get_errno(getpriority(arg1, arg2));
1158
        break;
1159
    case TARGET_NR_setpriority:
1160
        ret = get_errno(setpriority(arg1, arg2, arg3));
1161
        break;
1162
    case TARGET_NR_profil:
1163
        goto unimplemented;
1164
    case TARGET_NR_statfs:
1165
        stfs = (void *)arg2;
1166
        ret = get_errno(sys_statfs((const char *)arg1, stfs));
1167
    convert_statfs:
1168
        if (!is_error(ret)) {
1169
            tswap32s(&stfs->f_type);
1170
            tswap32s(&stfs->f_bsize);
1171
            tswap32s(&stfs->f_blocks);
1172
            tswap32s(&stfs->f_bfree);
1173
            tswap32s(&stfs->f_bavail);
1174
            tswap32s(&stfs->f_files);
1175
            tswap32s(&stfs->f_ffree);
1176
            tswap32s(&stfs->f_fsid.val[0]);
1177
            tswap32s(&stfs->f_fsid.val[1]);
1178
            tswap32s(&stfs->f_namelen);
1179
        }
1180
        break;
1181
    case TARGET_NR_fstatfs:
1182
        stfs = (void *)arg2;
1183
        ret = get_errno(sys_fstatfs(arg1, stfs));
1184
        goto convert_statfs;
1185
    case TARGET_NR_ioperm:
1186
        goto unimplemented;
1187
    case TARGET_NR_socketcall:
1188
        ret = do_socketcall(arg1, (long *)arg2);
1189
        break;
1190
    case TARGET_NR_syslog:
1191
        goto unimplemented;
1192
    case TARGET_NR_setitimer:
1193
        goto unimplemented;
1194
    case TARGET_NR_getitimer:
1195
        goto unimplemented;
1196
    case TARGET_NR_stat:
1197
        ret = get_errno(stat((const char *)arg1, &st));
1198
        goto do_stat;
1199
    case TARGET_NR_lstat:
1200
        ret = get_errno(lstat((const char *)arg1, &st));
1201
        goto do_stat;
1202
    case TARGET_NR_fstat:
1203
        {
1204
            ret = get_errno(fstat(arg1, &st));
1205
        do_stat:
1206
            if (!is_error(ret)) {
1207
                struct target_stat *target_st = (void *)arg2;
1208
                target_st->st_dev = tswap16(st.st_dev);
1209
                target_st->st_ino = tswapl(st.st_ino);
1210
                target_st->st_mode = tswap16(st.st_mode);
1211
                target_st->st_nlink = tswap16(st.st_nlink);
1212
                target_st->st_uid = tswap16(st.st_uid);
1213
                target_st->st_gid = tswap16(st.st_gid);
1214
                target_st->st_rdev = tswap16(st.st_rdev);
1215
                target_st->st_size = tswapl(st.st_size);
1216
                target_st->st_blksize = tswapl(st.st_blksize);
1217
                target_st->st_blocks = tswapl(st.st_blocks);
1218
                target_st->st_atime = tswapl(st.st_atime);
1219
                target_st->st_mtime = tswapl(st.st_mtime);
1220
                target_st->st_ctime = tswapl(st.st_ctime);
1221
            }
1222
        }
1223
        break;
1224
    case TARGET_NR_olduname:
1225
        goto unimplemented;
1226
    case TARGET_NR_iopl:
1227
        goto unimplemented;
1228
    case TARGET_NR_vhangup:
1229
        ret = get_errno(vhangup());
1230
        break;
1231
    case TARGET_NR_idle:
1232
        goto unimplemented;
1233
    case TARGET_NR_vm86old:
1234
        goto unimplemented;
1235
    case TARGET_NR_wait4:
1236
        {
1237
            int status;
1238
            target_long *status_ptr = (void *)arg2;
1239
            struct rusage rusage, *rusage_ptr;
1240
            struct target_rusage *target_rusage = (void *)arg4;
1241
            if (target_rusage)
1242
                rusage_ptr = &rusage;
1243
            else
1244
                rusage_ptr = NULL;
1245
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1246
            if (!is_error(ret)) {
1247
                if (status_ptr)
1248
                    *status_ptr = tswap32(status);
1249
                if (target_rusage) {
1250
                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
1251
                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
1252
                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
1253
                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
1254
                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
1255
                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
1256
                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
1257
                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
1258
                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
1259
                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
1260
                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
1261
                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
1262
                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
1263
                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
1264
                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
1265
                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
1266
                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
1267
                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
1268
                }
1269
            }
1270
        }
1271
        break;
1272
    case TARGET_NR_swapoff:
1273
        ret = get_errno(swapoff((const char *)arg1));
1274
        break;
1275
    case TARGET_NR_sysinfo:
1276
        goto unimplemented;
1277
    case TARGET_NR_ipc:
1278
        goto unimplemented;
1279
    case TARGET_NR_fsync:
1280
        ret = get_errno(fsync(arg1));
1281
        break;
1282
    case TARGET_NR_sigreturn:
1283
        goto unimplemented;
1284
    case TARGET_NR_clone:
1285
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
1286
        break;
1287
    case TARGET_NR_setdomainname:
1288
        ret = get_errno(setdomainname((const char *)arg1, arg2));
1289
        break;
1290
    case TARGET_NR_uname:
1291
        /* no need to transcode because we use the linux syscall */
1292
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
1293
        break;
1294
#ifdef TARGET_I386
1295
    case TARGET_NR_modify_ldt:
1296
        ret = get_errno(gemu_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
1297
        break;
1298
#endif
1299
    case TARGET_NR_adjtimex:
1300
        goto unimplemented;
1301
    case TARGET_NR_mprotect:
1302
        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
1303
        break;
1304
    case TARGET_NR_sigprocmask:
1305
        {
1306
            int how = arg1;
1307
            sigset_t set, oldset, *set_ptr;
1308
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1309
            
1310
            switch(how) {
1311
            case TARGET_SIG_BLOCK:
1312
                how = SIG_BLOCK;
1313
                break;
1314
            case TARGET_SIG_UNBLOCK:
1315
                how = SIG_UNBLOCK;
1316
                break;
1317
            case TARGET_SIG_SETMASK:
1318
                how = SIG_SETMASK;
1319
                break;
1320
            default:
1321
                ret = -EINVAL;
1322
                goto fail;
1323
            }
1324
            
1325
            if (pset) {
1326
                target_to_host_old_sigset(&set, pset);
1327
                set_ptr = &set;
1328
            } else {
1329
                set_ptr = NULL;
1330
            }
1331
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1332
            if (!is_error(ret) && poldset) {
1333
                host_to_target_old_sigset(poldset, &oldset);
1334
            }
1335
        }
1336
        break;
1337
    case TARGET_NR_create_module:
1338
    case TARGET_NR_init_module:
1339
    case TARGET_NR_delete_module:
1340
    case TARGET_NR_get_kernel_syms:
1341
        goto unimplemented;
1342
    case TARGET_NR_quotactl:
1343
        goto unimplemented;
1344
    case TARGET_NR_getpgid:
1345
        ret = get_errno(getpgid(arg1));
1346
        break;
1347
    case TARGET_NR_fchdir:
1348
        ret = get_errno(fchdir(arg1));
1349
        break;
1350
    case TARGET_NR_bdflush:
1351
        goto unimplemented;
1352
    case TARGET_NR_sysfs:
1353
        goto unimplemented;
1354
    case TARGET_NR_personality:
1355
        ret = get_errno(personality(arg1));
1356
        break;
1357
    case TARGET_NR_afs_syscall:
1358
        goto unimplemented;
1359
    case TARGET_NR_setfsuid:
1360
        goto unimplemented;
1361
    case TARGET_NR_setfsgid:
1362
        goto unimplemented;
1363
    case TARGET_NR__llseek:
1364
        {
1365
            int64_t res;
1366
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
1367
            *(int64_t *)arg4 = tswap64(res);
1368
        }
1369
        break;
1370
    case TARGET_NR_getdents:
1371
#if TARGET_LONG_SIZE != 4
1372
#error not supported
1373
#endif
1374
        {
1375
            struct dirent *dirp = (void *)arg2;
1376
            long count = arg3;
1377

    
1378
            ret = get_errno(sys_getdents(arg1, dirp, count));
1379
            if (!is_error(ret)) {
1380
                struct dirent *de;
1381
                int len = ret;
1382
                int reclen;
1383
                de = dirp;
1384
                while (len > 0) {
1385
                    reclen = tswap16(de->d_reclen);
1386
                    if (reclen > len)
1387
                        break;
1388
                    de->d_reclen = reclen;
1389
                    tswapls(&de->d_ino);
1390
                    tswapls(&de->d_off);
1391
                    de = (struct dirent *)((char *)de + reclen);
1392
                    len -= reclen;
1393
                }
1394
            }
1395
        }
1396
        break;
1397
    case TARGET_NR_getdents64:
1398
        {
1399
            struct dirent64 *dirp = (void *)arg2;
1400
            long count = arg3;
1401
            ret = get_errno(sys_getdents64(arg1, dirp, count));
1402
            if (!is_error(ret)) {
1403
                struct dirent64 *de;
1404
                int len = ret;
1405
                int reclen;
1406
                de = dirp;
1407
                while (len > 0) {
1408
                    reclen = tswap16(de->d_reclen);
1409
                    if (reclen > len)
1410
                        break;
1411
                    de->d_reclen = reclen;
1412
                    tswap64s(&de->d_ino);
1413
                    tswap64s(&de->d_off);
1414
                    de = (struct dirent64 *)((char *)de + reclen);
1415
                    len -= reclen;
1416
                }
1417
            }
1418
        }
1419
        break;
1420
    case TARGET_NR__newselect:
1421
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
1422
                        (void *)arg5);
1423
        break;
1424
    case TARGET_NR_flock:
1425
        goto unimplemented;
1426
    case TARGET_NR_msync:
1427
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1428
        break;
1429
    case TARGET_NR_readv:
1430
        {
1431
            int count = arg3;
1432
            int i;
1433
            struct iovec *vec;
1434
            struct target_iovec *target_vec = (void *)arg2;
1435

    
1436
            vec = alloca(count * sizeof(struct iovec));
1437
            for(i = 0;i < count; i++) {
1438
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
1439
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
1440
            }
1441
            ret = get_errno(readv(arg1, vec, count));
1442
        }
1443
        break;
1444
    case TARGET_NR_writev:
1445
        {
1446
            int count = arg3;
1447
            int i;
1448
            struct iovec *vec;
1449
            struct target_iovec *target_vec = (void *)arg2;
1450

    
1451
            vec = alloca(count * sizeof(struct iovec));
1452
            for(i = 0;i < count; i++) {
1453
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
1454
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
1455
            }
1456
            ret = get_errno(writev(arg1, vec, count));
1457
        }
1458
        break;
1459
    case TARGET_NR_getsid:
1460
        ret = get_errno(getsid(arg1));
1461
        break;
1462
    case TARGET_NR_fdatasync:
1463
        goto unimplemented;
1464
    case TARGET_NR__sysctl:
1465
        goto unimplemented;
1466
    case TARGET_NR_mlock:
1467
        ret = get_errno(mlock((void *)arg1, arg2));
1468
        break;
1469
    case TARGET_NR_munlock:
1470
        ret = get_errno(munlock((void *)arg1, arg2));
1471
        break;
1472
    case TARGET_NR_mlockall:
1473
        ret = get_errno(mlockall(arg1));
1474
        break;
1475
    case TARGET_NR_munlockall:
1476
        ret = get_errno(munlockall());
1477
        break;
1478
    case TARGET_NR_sched_setparam:
1479
        goto unimplemented;
1480
    case TARGET_NR_sched_getparam:
1481
        goto unimplemented;
1482
    case TARGET_NR_sched_setscheduler:
1483
        goto unimplemented;
1484
    case TARGET_NR_sched_getscheduler:
1485
        goto unimplemented;
1486
    case TARGET_NR_sched_yield:
1487
        ret = get_errno(sched_yield());
1488
        break;
1489
    case TARGET_NR_sched_get_priority_max:
1490
    case TARGET_NR_sched_get_priority_min:
1491
    case TARGET_NR_sched_rr_get_interval:
1492
        goto unimplemented;
1493
        
1494
    case TARGET_NR_nanosleep:
1495
        {
1496
            struct target_timespec *target_req = (void *)arg1;
1497
            struct target_timespec *target_rem = (void *)arg2;
1498
            struct timespec req, rem;
1499
            req.tv_sec = tswapl(target_req->tv_sec);
1500
            req.tv_nsec = tswapl(target_req->tv_nsec);
1501
            ret = get_errno(nanosleep(&req, &rem));
1502
            if (target_rem) {
1503
                target_rem->tv_sec = tswapl(rem.tv_sec);
1504
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
1505
            }
1506
        }
1507
        break;
1508

    
1509
    case TARGET_NR_mremap:
1510
    case TARGET_NR_setresuid:
1511
    case TARGET_NR_getresuid:
1512
    case TARGET_NR_vm86:
1513
    case TARGET_NR_query_module:
1514
    case TARGET_NR_poll:
1515
    case TARGET_NR_nfsservctl:
1516
    case TARGET_NR_setresgid:
1517
    case TARGET_NR_getresgid:
1518
    case TARGET_NR_prctl:
1519
    case TARGET_NR_rt_sigreturn:
1520
    case TARGET_NR_rt_sigaction:
1521
    case TARGET_NR_rt_sigprocmask:
1522
    case TARGET_NR_rt_sigpending:
1523
    case TARGET_NR_rt_sigtimedwait:
1524
    case TARGET_NR_rt_sigqueueinfo:
1525
    case TARGET_NR_rt_sigsuspend:
1526
    case TARGET_NR_pread:
1527
    case TARGET_NR_pwrite:
1528
        goto unimplemented;
1529
    case TARGET_NR_chown:
1530
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1531
        break;
1532
    case TARGET_NR_getcwd:
1533
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
1534
        break;
1535
    case TARGET_NR_capget:
1536
    case TARGET_NR_capset:
1537
    case TARGET_NR_sigaltstack:
1538
    case TARGET_NR_sendfile:
1539
    case TARGET_NR_getpmsg:
1540
    case TARGET_NR_putpmsg:
1541
    case TARGET_NR_vfork:
1542
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
1543
        break;
1544
    case TARGET_NR_ugetrlimit:
1545
    case TARGET_NR_truncate64:
1546
    case TARGET_NR_ftruncate64:
1547
        goto unimplemented;
1548
    case TARGET_NR_stat64:
1549
        ret = get_errno(stat((const char *)arg1, &st));
1550
        goto do_stat64;
1551
    case TARGET_NR_lstat64:
1552
        ret = get_errno(lstat((const char *)arg1, &st));
1553
        goto do_stat64;
1554
    case TARGET_NR_fstat64:
1555
        {
1556
            ret = get_errno(fstat(arg1, &st));
1557
        do_stat64:
1558
            if (!is_error(ret)) {
1559
                struct target_stat64 *target_st = (void *)arg2;
1560
                target_st->st_dev = tswap16(st.st_dev);
1561
                target_st->st_ino = tswapl(st.st_ino);
1562
                target_st->st_mode = tswap16(st.st_mode);
1563
                target_st->st_nlink = tswap16(st.st_nlink);
1564
                target_st->st_uid = tswap16(st.st_uid);
1565
                target_st->st_gid = tswap16(st.st_gid);
1566
                target_st->st_rdev = tswap16(st.st_rdev);
1567
                /* XXX: better use of kernel struct */
1568
                target_st->st_size = tswapl(st.st_size);
1569
                target_st->st_blksize = tswapl(st.st_blksize);
1570
                target_st->st_blocks = tswapl(st.st_blocks);
1571
                target_st->st_atime = tswapl(st.st_atime);
1572
                target_st->st_mtime = tswapl(st.st_mtime);
1573
                target_st->st_ctime = tswapl(st.st_ctime);
1574
            }
1575
        }
1576
        break;
1577

    
1578
    case TARGET_NR_lchown32:
1579
    case TARGET_NR_getuid32:
1580
    case TARGET_NR_getgid32:
1581
    case TARGET_NR_geteuid32:
1582
    case TARGET_NR_getegid32:
1583
    case TARGET_NR_setreuid32:
1584
    case TARGET_NR_setregid32:
1585
    case TARGET_NR_getgroups32:
1586
    case TARGET_NR_setgroups32:
1587
    case TARGET_NR_fchown32:
1588
    case TARGET_NR_setresuid32:
1589
    case TARGET_NR_getresuid32:
1590
    case TARGET_NR_setresgid32:
1591
    case TARGET_NR_getresgid32:
1592
    case TARGET_NR_chown32:
1593
    case TARGET_NR_setuid32:
1594
    case TARGET_NR_setgid32:
1595
    case TARGET_NR_setfsuid32:
1596
    case TARGET_NR_setfsgid32:
1597
    case TARGET_NR_pivot_root:
1598
    case TARGET_NR_mincore:
1599
    case TARGET_NR_madvise:
1600
        goto unimplemented;
1601
#if TARGET_LONG_BITS == 32
1602
    case TARGET_NR_fcntl64:
1603
        switch(arg2) {
1604
        case F_GETLK64:
1605
        case F_SETLK64:
1606
        case F_SETLKW64:
1607
            goto unimplemented;
1608
        default:
1609
            ret = get_errno(fcntl(arg1, arg2, arg3));
1610
            break;
1611
        }
1612
        break;
1613
#endif
1614
    case TARGET_NR_security:
1615
        goto unimplemented;
1616
    case TARGET_NR_gettid:
1617
        ret = get_errno(gettid());
1618
        break;
1619
    case TARGET_NR_readahead:
1620
    case TARGET_NR_setxattr:
1621
    case TARGET_NR_lsetxattr:
1622
    case TARGET_NR_fsetxattr:
1623
    case TARGET_NR_getxattr:
1624
    case TARGET_NR_lgetxattr:
1625
    case TARGET_NR_fgetxattr:
1626
    case TARGET_NR_listxattr:
1627
    case TARGET_NR_llistxattr:
1628
    case TARGET_NR_flistxattr:
1629
    case TARGET_NR_removexattr:
1630
    case TARGET_NR_lremovexattr:
1631
    case TARGET_NR_fremovexattr:
1632
        goto unimplemented;
1633
    default:
1634
    unimplemented:
1635
        gemu_log("Unsupported syscall: %d\n", num);
1636
        ret = -ENOSYS;
1637
        break;
1638
    }
1639
 fail:
1640
    return ret;
1641
}
1642