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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>
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#include <sys/poll.h>
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//#include <sys/user.h>
43

    
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#define termios host_termios
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#define winsize host_winsize
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#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 */
50

    
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#include <linux/termios.h>
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#include <linux/unistd.h>
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#include <linux/utsname.h>
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#include <linux/cdrom.h>
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#include <linux/hdreg.h>
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#include <linux/soundcard.h>
57
#include <linux/dirent.h>
58

    
59
#include "qemu.h"
60

    
61
//#define DEBUG
62

    
63
#ifndef PAGE_SIZE
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#define PAGE_SIZE 4096
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#define PAGE_MASK ~(PAGE_SIZE - 1)
66
#endif
67

    
68
//#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])
71

    
72
void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
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void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
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long do_sigreturn(CPUX86State *env);
75
long do_rt_sigreturn(CPUX86State *env);
76

    
77
#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
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#define __NR_sys_getdents64 __NR_getdents64
83
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
84

    
85
#ifdef __NR_gettid
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_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)
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_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
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_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
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_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);
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_syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
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_syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
100
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
101

    
102
extern int personality(int);
103
extern int flock(int, int);
104
extern int setfsuid(int);
105
extern int setfsgid(int);
106
extern int setresuid(int,int,int);
107
extern int getresuid(int *,int *,int *);
108
extern int setresgid(int,int,int);
109
extern int getresgid(int *,int *,int *);
110

    
111
static inline long get_errno(long ret)
112
{
113
    if (ret == -1)
114
        return -errno;
115
    else
116
        return ret;
117
}
118

    
119
static inline int is_error(long ret)
120
{
121
    return (unsigned long)ret >= (unsigned long)(-4096);
122
}
123

    
124
static char *target_brk;
125
static char *target_original_brk;
126

    
127
void target_set_brk(char *new_brk)
128
{
129
    target_brk = new_brk;
130
    target_original_brk = new_brk;
131
}
132

    
133
static long do_brk(char *new_brk)
134
{
135
    char *brk_page;
136
    long mapped_addr;
137
    int        new_alloc_size;
138

    
139
    if (!new_brk)
140
        return (long)target_brk;
141
    if (new_brk < target_original_brk)
142
        return -ENOMEM;
143
    
144
    brk_page = (char *)(((unsigned long)target_brk + PAGE_SIZE - 1) & PAGE_MASK);
145

    
146
    /* If the new brk is less than this, set it and we're done... */
147
    if (new_brk < brk_page) {
148
        target_brk = new_brk;
149
            return (long)target_brk;
150
    }
151

    
152
    /* We need to allocate more memory after the brk... */
153
    new_alloc_size = ((new_brk - brk_page + 1)+(PAGE_SIZE-1)) & PAGE_MASK;
154
    mapped_addr = get_errno((long)mmap((caddr_t)brk_page, new_alloc_size, 
155
                                       PROT_READ|PROT_WRITE,
156
                                       MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
157
    
158
    if (is_error(mapped_addr)) {
159
        return mapped_addr;
160
    } else {
161
        target_brk = new_brk;
162
            return (long)target_brk;
163
    }
164
}
165

    
166
static inline fd_set *target_to_host_fds(fd_set *fds, 
167
                                         target_long *target_fds, int n)
168
{
169
#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
170
    return (fd_set *)target_fds;
171
#else
172
    int i, b;
173
    if (target_fds) {
174
        FD_ZERO(fds);
175
        for(i = 0;i < n; i++) {
176
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
177
                 (i & (TARGET_LONG_BITS - 1))) & 1;
178
            if (b)
179
                FD_SET(i, fds);
180
        }
181
        return fds;
182
    } else {
183
        return NULL;
184
    }
185
#endif
186
}
187

    
188
static inline void host_to_target_fds(target_long *target_fds, 
189
                                      fd_set *fds, int n)
190
{
191
#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
192
    /* nothing to do */
193
#else
194
    int i, nw, j, k;
195
    target_long v;
196

    
197
    if (target_fds) {
198
        nw = n / TARGET_LONG_BITS;
199
        k = 0;
200
        for(i = 0;i < nw; i++) {
201
            v = 0;
202
            for(j = 0; j < TARGET_LONG_BITS; j++) {
203
                v |= ((FD_ISSET(k, fds) != 0) << j);
204
                k++;
205
            }
206
            target_fds[i] = tswapl(v);
207
        }
208
    }
209
#endif
210
}
211

    
212
static inline void target_to_host_timeval(struct timeval *tv, 
213
                                          struct target_timeval *target_tv)
214
{
215
    tv->tv_sec = tswapl(target_tv->tv_sec);
216
    tv->tv_usec = tswapl(target_tv->tv_usec);
217
}
218

    
219
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
220
                                          struct timeval *tv)
221
{
222
    target_tv->tv_sec = tswapl(tv->tv_sec);
223
    target_tv->tv_usec = tswapl(tv->tv_usec);
224
}
225

    
226

    
227
static long do_select(long n, 
228
                      target_long *target_rfds, target_long *target_wfds, 
229
                      target_long *target_efds, struct target_timeval *target_tv)
230
{
231
    fd_set rfds, wfds, efds;
232
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
233
    struct timeval tv, *tv_ptr;
234
    long ret;
235

    
236
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
237
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
238
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
239
            
240
    if (target_tv) {
241
        tv.tv_sec = tswapl(target_tv->tv_sec);
242
        tv.tv_usec = tswapl(target_tv->tv_usec);
243
        tv_ptr = &tv;
244
    } else {
245
        tv_ptr = NULL;
246
    }
247
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
248
    if (!is_error(ret)) {
249
        host_to_target_fds(target_rfds, rfds_ptr, n);
250
        host_to_target_fds(target_wfds, wfds_ptr, n);
251
        host_to_target_fds(target_efds, efds_ptr, n);
252

    
253
        if (target_tv) {
254
            target_tv->tv_sec = tswapl(tv.tv_sec);
255
            target_tv->tv_usec = tswapl(tv.tv_usec);
256
        }
257
    }
258
    return ret;
259
}
260

    
261
static long do_socketcall(int num, long *vptr)
262
{
263
    long ret;
264

    
265
    switch(num) {
266
    case SOCKOP_socket:
267
        ret = get_errno(socket(vptr[0], vptr[1], vptr[2]));
268
        break;
269
    case SOCKOP_bind:
270
        ret = get_errno(bind(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
271
        break;
272
    case SOCKOP_connect:
273
        ret = get_errno(connect(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
274
        break;
275
    case SOCKOP_listen:
276
        ret = get_errno(listen(vptr[0], vptr[1]));
277
        break;
278
    case SOCKOP_accept:
279
        {
280
            socklen_t size;
281
            size = tswap32(*(int32_t *)vptr[2]);
282
            ret = get_errno(accept(vptr[0], (struct sockaddr *)vptr[1], &size));
283
            if (!is_error(ret)) 
284
                *(int32_t *)vptr[2] = size;
285
        }
286
        break;
287
    case SOCKOP_getsockname:
288
        {
289
            socklen_t size;
290
            size = tswap32(*(int32_t *)vptr[2]);
291
            ret = get_errno(getsockname(vptr[0], (struct sockaddr *)vptr[1], &size));
292
            if (!is_error(ret)) 
293
                *(int32_t *)vptr[2] = size;
294
        }
295
        break;
296
    case SOCKOP_getpeername:
297
        {
298
            socklen_t size;
299
            size = tswap32(*(int32_t *)vptr[2]);
300
            ret = get_errno(getpeername(vptr[0], (struct sockaddr *)vptr[1], &size));
301
            if (!is_error(ret)) 
302
                *(int32_t *)vptr[2] = size;
303
        }
304
        break;
305
    case SOCKOP_socketpair:
306
        {
307
            int tab[2];
308
            int32_t *target_tab = (int32_t *)vptr[3];
309
            ret = get_errno(socketpair(vptr[0], vptr[1], vptr[2], tab));
310
            if (!is_error(ret)) {
311
                target_tab[0] = tswap32(tab[0]);
312
                target_tab[1] = tswap32(tab[1]);
313
            }
314
        }
315
        break;
316
    case SOCKOP_send:
317
        ret = get_errno(send(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
318
        break;
319
    case SOCKOP_recv:
320
        ret = get_errno(recv(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
321
        break;
322
    case SOCKOP_sendto:
323
        ret = get_errno(sendto(vptr[0], (void *)vptr[1], vptr[2], vptr[3], 
324
                               (struct sockaddr *)vptr[4], vptr[5]));
325
        break;
326
    case SOCKOP_recvfrom:
327
        {
328
            socklen_t size;
329
            size = tswap32(*(int32_t *)vptr[5]);
330
            ret = get_errno(recvfrom(vptr[0], (void *)vptr[1], vptr[2], 
331
                                     vptr[3], (struct sockaddr *)vptr[4], &size));
332
            if (!is_error(ret)) 
333
                *(int32_t *)vptr[5] = size;
334
        }
335
        break;
336
    case SOCKOP_shutdown:
337
        ret = get_errno(shutdown(vptr[0], vptr[1]));
338
        break;
339
    case SOCKOP_sendmsg:
340
    case SOCKOP_recvmsg:
341
        {
342
            int fd;
343
            struct target_msghdr *msgp;
344
            struct msghdr msg;
345
            int flags, count, i;
346
            struct iovec *vec;
347
            struct target_iovec *target_vec;
348

    
349
            msgp = (void *)vptr[1];
350
            msg.msg_name = (void *)tswapl(msgp->msg_name);
351
            msg.msg_namelen = tswapl(msgp->msg_namelen);
352
            msg.msg_control = (void *)tswapl(msgp->msg_control);
353
            msg.msg_controllen = tswapl(msgp->msg_controllen);
354
            msg.msg_flags = tswap32(msgp->msg_flags);
355

    
356
            count = tswapl(msgp->msg_iovlen);
357
            vec = alloca(count * sizeof(struct iovec));
358
            target_vec = (void *)tswapl(msgp->msg_iov);
359
            for(i = 0;i < count; i++) {
360
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
361
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
362
            }
363
            msg.msg_iovlen = count;
364
            msg.msg_iov = vec;
365

    
366
            fd = vptr[0];
367
            flags = vptr[2];
368
            if (num == SOCKOP_sendmsg)
369
                ret = sendmsg(fd, &msg, flags);
370
            else
371
                ret = recvmsg(fd, &msg, flags);
372
            ret = get_errno(ret);
373
        }
374
        break;
375
    case SOCKOP_setsockopt:
376
    case SOCKOP_getsockopt:
377
    default:
378
        gemu_log("Unsupported socketcall: %d\n", num);
379
        ret = -ENOSYS;
380
        break;
381
    }
382
    return ret;
383
}
384

    
385
/* kernel structure types definitions */
386
#define IFNAMSIZ        16
387

    
388
#define STRUCT(name, list...) STRUCT_ ## name,
389
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
390
enum {
391
#include "syscall_types.h"
392
};
393
#undef STRUCT
394
#undef STRUCT_SPECIAL
395

    
396
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
397
#define STRUCT_SPECIAL(name)
398
#include "syscall_types.h"
399
#undef STRUCT
400
#undef STRUCT_SPECIAL
401

    
402
typedef struct IOCTLEntry {
403
    int target_cmd;
404
    int host_cmd;
405
    const char *name;
406
    int access;
407
    const argtype arg_type[5];
408
} IOCTLEntry;
409

    
410
#define IOC_R 0x0001
411
#define IOC_W 0x0002
412
#define IOC_RW (IOC_R | IOC_W)
413

    
414
#define MAX_STRUCT_SIZE 4096
415

    
416
const IOCTLEntry ioctl_entries[] = {
417
#define IOCTL(cmd, access, types...) \
418
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
419
#include "ioctls.h"
420
    { 0, 0, },
421
};
422

    
423
static long do_ioctl(long fd, long cmd, long arg)
424
{
425
    const IOCTLEntry *ie;
426
    const argtype *arg_type;
427
    long ret;
428
    uint8_t buf_temp[MAX_STRUCT_SIZE];
429

    
430
    ie = ioctl_entries;
431
    for(;;) {
432
        if (ie->target_cmd == 0) {
433
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
434
            return -ENOSYS;
435
        }
436
        if (ie->target_cmd == cmd)
437
            break;
438
        ie++;
439
    }
440
    arg_type = ie->arg_type;
441
#if defined(DEBUG)
442
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
443
#endif
444
    switch(arg_type[0]) {
445
    case TYPE_NULL:
446
        /* no argument */
447
        ret = get_errno(ioctl(fd, ie->host_cmd));
448
        break;
449
    case TYPE_PTRVOID:
450
    case TYPE_INT:
451
        /* int argment */
452
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
453
        break;
454
    case TYPE_PTR:
455
        arg_type++;
456
        switch(ie->access) {
457
        case IOC_R:
458
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
459
            if (!is_error(ret)) {
460
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
461
            }
462
            break;
463
        case IOC_W:
464
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
465
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
466
            break;
467
        default:
468
        case IOC_RW:
469
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
470
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
471
            if (!is_error(ret)) {
472
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
473
            }
474
            break;
475
        }
476
        break;
477
    default:
478
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
479
        ret = -ENOSYS;
480
        break;
481
    }
482
    return ret;
483
}
484

    
485
bitmask_transtbl iflag_tbl[] = {
486
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
487
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
488
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
489
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
490
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
491
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
492
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
493
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
494
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
495
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
496
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
497
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
498
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
499
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
500
        { 0, 0, 0, 0 }
501
};
502

    
503
bitmask_transtbl oflag_tbl[] = {
504
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
505
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
506
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
507
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
508
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
509
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
510
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
511
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
512
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
513
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
514
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
515
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
516
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
517
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
518
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
519
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
520
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
521
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
522
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
523
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
524
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
525
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
526
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
527
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
528
        { 0, 0, 0, 0 }
529
};
530

    
531
bitmask_transtbl cflag_tbl[] = {
532
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
533
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
534
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
535
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
536
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
537
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
538
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
539
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
540
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
541
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
542
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
543
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
544
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
545
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
546
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
547
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
548
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
549
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
550
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
551
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
552
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
553
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
554
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
555
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
556
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
557
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
558
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
559
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
560
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
561
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
562
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
563
        { 0, 0, 0, 0 }
564
};
565

    
566
bitmask_transtbl lflag_tbl[] = {
567
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
568
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
569
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
570
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
571
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
572
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
573
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
574
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
575
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
576
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
577
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
578
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
579
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
580
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
581
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
582
        { 0, 0, 0, 0 }
583
};
584

    
585
static void target_to_host_termios (void *dst, const void *src)
586
{
587
    struct host_termios *host = dst;
588
    const struct target_termios *target = src;
589
    
590
    host->c_iflag = 
591
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
592
    host->c_oflag = 
593
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
594
    host->c_cflag = 
595
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
596
    host->c_lflag = 
597
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
598
    host->c_line = target->c_line;
599
    
600
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
601
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
602
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
603
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
604
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
605
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
606
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
607
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
608
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
609
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
610
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
611
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
612
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
613
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
614
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
615
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
616
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
617
}
618
  
619
static void host_to_target_termios (void *dst, const void *src)
620
{
621
    struct target_termios *target = dst;
622
    const struct host_termios *host = src;
623

    
624
    target->c_iflag = 
625
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
626
    target->c_oflag = 
627
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
628
    target->c_cflag = 
629
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
630
    target->c_lflag = 
631
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
632
    target->c_line = host->c_line;
633
  
634
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
635
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
636
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
637
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
638
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
639
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
640
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
641
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
642
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
643
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
644
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
645
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
646
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
647
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
648
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
649
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
650
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
651
}
652

    
653
StructEntry struct_termios_def = {
654
    .convert = { host_to_target_termios, target_to_host_termios },
655
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
656
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
657
};
658

    
659
#ifdef TARGET_I386
660

    
661
/* NOTE: there is really one LDT for all the threads */
662
uint8_t *ldt_table;
663

    
664
static int read_ldt(void *ptr, unsigned long bytecount)
665
{
666
    int size;
667

    
668
    if (!ldt_table)
669
        return 0;
670
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
671
    if (size > bytecount)
672
        size = bytecount;
673
    memcpy(ptr, ldt_table, size);
674
    return size;
675
}
676

    
677
/* XXX: add locking support */
678
static int write_ldt(CPUX86State *env, 
679
                     void *ptr, unsigned long bytecount, int oldmode)
680
{
681
    struct target_modify_ldt_ldt_s ldt_info;
682
    int seg_32bit, contents, read_exec_only, limit_in_pages;
683
    int seg_not_present, useable;
684
    uint32_t *lp, entry_1, entry_2;
685

    
686
    if (bytecount != sizeof(ldt_info))
687
        return -EINVAL;
688
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
689
    tswap32s(&ldt_info.entry_number);
690
    tswapls((long *)&ldt_info.base_addr);
691
    tswap32s(&ldt_info.limit);
692
    tswap32s(&ldt_info.flags);
693
    
694
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
695
        return -EINVAL;
696
    seg_32bit = ldt_info.flags & 1;
697
    contents = (ldt_info.flags >> 1) & 3;
698
    read_exec_only = (ldt_info.flags >> 3) & 1;
699
    limit_in_pages = (ldt_info.flags >> 4) & 1;
700
    seg_not_present = (ldt_info.flags >> 5) & 1;
701
    useable = (ldt_info.flags >> 6) & 1;
702

    
703
    if (contents == 3) {
704
        if (oldmode)
705
            return -EINVAL;
706
        if (seg_not_present == 0)
707
            return -EINVAL;
708
    }
709
    /* allocate the LDT */
710
    if (!ldt_table) {
711
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
712
        if (!ldt_table)
713
            return -ENOMEM;
714
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
715
        env->ldt.base = ldt_table;
716
        env->ldt.limit = 0xffff;
717
    }
718

    
719
    /* NOTE: same code as Linux kernel */
720
    /* Allow LDTs to be cleared by the user. */
721
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
722
        if (oldmode ||
723
            (contents == 0                &&
724
             read_exec_only == 1        &&
725
             seg_32bit == 0                &&
726
             limit_in_pages == 0        &&
727
             seg_not_present == 1        &&
728
             useable == 0 )) {
729
            entry_1 = 0;
730
            entry_2 = 0;
731
            goto install;
732
        }
733
    }
734
    
735
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
736
        (ldt_info.limit & 0x0ffff);
737
    entry_2 = (ldt_info.base_addr & 0xff000000) |
738
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
739
        (ldt_info.limit & 0xf0000) |
740
        ((read_exec_only ^ 1) << 9) |
741
        (contents << 10) |
742
        ((seg_not_present ^ 1) << 15) |
743
        (seg_32bit << 22) |
744
        (limit_in_pages << 23) |
745
        0x7000;
746
    if (!oldmode)
747
        entry_2 |= (useable << 20);
748
    
749
    /* Install the new entry ...  */
750
install:
751
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
752
    lp[0] = tswap32(entry_1);
753
    lp[1] = tswap32(entry_2);
754
    return 0;
755
}
756

    
757
/* specific and weird i386 syscalls */
758
int gemu_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
759
{
760
    int ret = -ENOSYS;
761
    
762
    switch (func) {
763
    case 0:
764
        ret = read_ldt(ptr, bytecount);
765
        break;
766
    case 1:
767
        ret = write_ldt(env, ptr, bytecount, 1);
768
        break;
769
    case 0x11:
770
        ret = write_ldt(env, ptr, bytecount, 0);
771
        break;
772
    }
773
    return ret;
774
}
775

    
776
/* this stack is the equivalent of the kernel stack associated with a
777
   thread/process */
778
#define NEW_STACK_SIZE 8192
779

    
780
static int clone_func(void *arg)
781
{
782
    CPUX86State *env = arg;
783
    cpu_loop(env);
784
    /* never exits */
785
    return 0;
786
}
787

    
788
int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
789
{
790
    int ret;
791
    uint8_t *new_stack;
792
    CPUX86State *new_env;
793
    
794
    if (flags & CLONE_VM) {
795
        if (!newsp)
796
            newsp = env->regs[R_ESP];
797
        new_stack = malloc(NEW_STACK_SIZE);
798
        
799
        /* we create a new CPU instance. */
800
        new_env = cpu_x86_init();
801
        memcpy(new_env, env, sizeof(CPUX86State));
802
        new_env->regs[R_ESP] = newsp;
803
        new_env->regs[R_EAX] = 0;
804
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
805
    } else {
806
        /* if no CLONE_VM, we consider it is a fork */
807
        if ((flags & ~CSIGNAL) != 0)
808
            return -EINVAL;
809
        ret = fork();
810
    }
811
    return ret;
812
}
813

    
814
#endif
815

    
816
#define high2lowuid(x) (x)
817
#define high2lowgid(x) (x)
818
#define low2highuid(x) (x)
819
#define low2highgid(x) (x)
820

    
821
void syscall_init(void)
822
{
823
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
824
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
825
#include "syscall_types.h"
826
#undef STRUCT
827
#undef STRUCT_SPECIAL
828
}
829
                                 
830
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
831
                long arg4, long arg5, long arg6)
832
{
833
    long ret;
834
    struct stat st;
835
    struct kernel_statfs *stfs;
836
    
837
#ifdef DEBUG
838
    gemu_log("syscall %d\n", num);
839
#endif
840
    switch(num) {
841
    case TARGET_NR_exit:
842
#ifdef HAVE_GPROF
843
        _mcleanup();
844
#endif
845
        /* XXX: should free thread stack and CPU env */
846
        _exit(arg1);
847
        ret = 0; /* avoid warning */
848
        break;
849
    case TARGET_NR_read:
850
        ret = get_errno(read(arg1, (void *)arg2, arg3));
851
        break;
852
    case TARGET_NR_write:
853
        ret = get_errno(write(arg1, (void *)arg2, arg3));
854
        break;
855
    case TARGET_NR_open:
856
        ret = get_errno(open((const char *)arg1, arg2, arg3));
857
        break;
858
    case TARGET_NR_close:
859
        ret = get_errno(close(arg1));
860
        break;
861
    case TARGET_NR_brk:
862
        ret = do_brk((char *)arg1);
863
        break;
864
    case TARGET_NR_fork:
865
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
866
        break;
867
    case TARGET_NR_waitpid:
868
        {
869
            int *status = (int *)arg2;
870
            ret = get_errno(waitpid(arg1, status, arg3));
871
            if (!is_error(ret) && status)
872
                tswapls((long *)&status);
873
        }
874
        break;
875
    case TARGET_NR_creat:
876
        ret = get_errno(creat((const char *)arg1, arg2));
877
        break;
878
    case TARGET_NR_link:
879
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
880
        break;
881
    case TARGET_NR_unlink:
882
        ret = get_errno(unlink((const char *)arg1));
883
        break;
884
    case TARGET_NR_execve:
885
        ret = get_errno(execve((const char *)arg1, (void *)arg2, (void *)arg3));
886
        break;
887
    case TARGET_NR_chdir:
888
        ret = get_errno(chdir((const char *)arg1));
889
        break;
890
    case TARGET_NR_time:
891
        {
892
            int *time_ptr = (int *)arg1;
893
            ret = get_errno(time((time_t *)time_ptr));
894
            if (!is_error(ret) && time_ptr)
895
                tswap32s(time_ptr);
896
        }
897
        break;
898
    case TARGET_NR_mknod:
899
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
900
        break;
901
    case TARGET_NR_chmod:
902
        ret = get_errno(chmod((const char *)arg1, arg2));
903
        break;
904
    case TARGET_NR_lchown:
905
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
906
        break;
907
    case TARGET_NR_break:
908
        goto unimplemented;
909
    case TARGET_NR_oldstat:
910
        goto unimplemented;
911
    case TARGET_NR_lseek:
912
        ret = get_errno(lseek(arg1, arg2, arg3));
913
        break;
914
    case TARGET_NR_getpid:
915
        ret = get_errno(getpid());
916
        break;
917
    case TARGET_NR_mount:
918
        /* need to look at the data field */
919
        goto unimplemented;
920
    case TARGET_NR_umount:
921
        ret = get_errno(umount((const char *)arg1));
922
        break;
923
    case TARGET_NR_setuid:
924
        ret = get_errno(setuid(low2highuid(arg1)));
925
        break;
926
    case TARGET_NR_getuid:
927
        ret = get_errno(getuid());
928
        break;
929
    case TARGET_NR_stime:
930
        {
931
            int *time_ptr = (int *)arg1;
932
            if (time_ptr)
933
                tswap32s(time_ptr);
934
            ret = get_errno(stime((time_t *)time_ptr));
935
        }
936
        break;
937
    case TARGET_NR_ptrace:
938
        goto unimplemented;
939
    case TARGET_NR_alarm:
940
        ret = alarm(arg1);
941
        break;
942
    case TARGET_NR_oldfstat:
943
        goto unimplemented;
944
    case TARGET_NR_pause:
945
        ret = get_errno(pause());
946
        break;
947
    case TARGET_NR_utime:
948
        goto unimplemented;
949
    case TARGET_NR_stty:
950
        goto unimplemented;
951
    case TARGET_NR_gtty:
952
        goto unimplemented;
953
    case TARGET_NR_access:
954
        ret = get_errno(access((const char *)arg1, arg2));
955
        break;
956
    case TARGET_NR_nice:
957
        ret = get_errno(nice(arg1));
958
        break;
959
    case TARGET_NR_ftime:
960
        goto unimplemented;
961
    case TARGET_NR_sync:
962
        sync();
963
        ret = 0;
964
        break;
965
    case TARGET_NR_kill:
966
        ret = get_errno(kill(arg1, arg2));
967
        break;
968
    case TARGET_NR_rename:
969
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
970
        break;
971
    case TARGET_NR_mkdir:
972
        ret = get_errno(mkdir((const char *)arg1, arg2));
973
        break;
974
    case TARGET_NR_rmdir:
975
        ret = get_errno(rmdir((const char *)arg1));
976
        break;
977
    case TARGET_NR_dup:
978
        ret = get_errno(dup(arg1));
979
        break;
980
    case TARGET_NR_pipe:
981
        {
982
            int *pipe_ptr = (int *)arg1;
983
            ret = get_errno(pipe(pipe_ptr));
984
            if (!is_error(ret)) {
985
                tswap32s(&pipe_ptr[0]);
986
                tswap32s(&pipe_ptr[1]);
987
            }
988
        }
989
        break;
990
    case TARGET_NR_times:
991
        goto unimplemented;
992
    case TARGET_NR_prof:
993
        goto unimplemented;
994
    case TARGET_NR_setgid:
995
        ret = get_errno(setgid(low2highgid(arg1)));
996
        break;
997
    case TARGET_NR_getgid:
998
        ret = get_errno(getgid());
999
        break;
1000
    case TARGET_NR_signal:
1001
        goto unimplemented;
1002
    case TARGET_NR_geteuid:
1003
        ret = get_errno(geteuid());
1004
        break;
1005
    case TARGET_NR_getegid:
1006
        ret = get_errno(getegid());
1007
        break;
1008
    case TARGET_NR_acct:
1009
        goto unimplemented;
1010
    case TARGET_NR_umount2:
1011
        ret = get_errno(umount2((const char *)arg1, arg2));
1012
        break;
1013
    case TARGET_NR_lock:
1014
        goto unimplemented;
1015
    case TARGET_NR_ioctl:
1016
        ret = do_ioctl(arg1, arg2, arg3);
1017
        break;
1018
    case TARGET_NR_fcntl:
1019
        switch(arg2) {
1020
        case F_GETLK:
1021
        case F_SETLK:
1022
        case F_SETLKW:
1023
            goto unimplemented;
1024
        default:
1025
            ret = get_errno(fcntl(arg1, arg2, arg3));
1026
            break;
1027
        }
1028
        break;
1029
    case TARGET_NR_mpx:
1030
        goto unimplemented;
1031
    case TARGET_NR_setpgid:
1032
        ret = get_errno(setpgid(arg1, arg2));
1033
        break;
1034
    case TARGET_NR_ulimit:
1035
        goto unimplemented;
1036
    case TARGET_NR_oldolduname:
1037
        goto unimplemented;
1038
    case TARGET_NR_umask:
1039
        ret = get_errno(umask(arg1));
1040
        break;
1041
    case TARGET_NR_chroot:
1042
        ret = get_errno(chroot((const char *)arg1));
1043
        break;
1044
    case TARGET_NR_ustat:
1045
        goto unimplemented;
1046
    case TARGET_NR_dup2:
1047
        ret = get_errno(dup2(arg1, arg2));
1048
        break;
1049
    case TARGET_NR_getppid:
1050
        ret = get_errno(getppid());
1051
        break;
1052
    case TARGET_NR_getpgrp:
1053
        ret = get_errno(getpgrp());
1054
        break;
1055
    case TARGET_NR_setsid:
1056
        ret = get_errno(setsid());
1057
        break;
1058
    case TARGET_NR_sigaction:
1059
        {
1060
            struct target_old_sigaction *old_act = (void *)arg2;
1061
            struct target_old_sigaction *old_oact = (void *)arg3;
1062
            struct target_sigaction act, oact, *pact;
1063
            if (old_act) {
1064
                act._sa_handler = old_act->_sa_handler;
1065
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1066
                act.sa_flags = old_act->sa_flags;
1067
                act.sa_restorer = old_act->sa_restorer;
1068
                pact = &act;
1069
            } else {
1070
                pact = NULL;
1071
            }
1072
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1073
            if (!is_error(ret) && old_oact) {
1074
                old_oact->_sa_handler = oact._sa_handler;
1075
                old_oact->sa_mask = oact.sa_mask.sig[0];
1076
                old_oact->sa_flags = oact.sa_flags;
1077
                old_oact->sa_restorer = oact.sa_restorer;
1078
            }
1079
        }
1080
        break;
1081
    case TARGET_NR_rt_sigaction:
1082
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1083
        break;
1084
    case TARGET_NR_sgetmask:
1085
        {
1086
            sigset_t cur_set;
1087
            target_ulong target_set;
1088
            sigprocmask(0, NULL, &cur_set);
1089
            host_to_target_old_sigset(&target_set, &cur_set);
1090
            ret = target_set;
1091
        }
1092
        break;
1093
    case TARGET_NR_ssetmask:
1094
        {
1095
            sigset_t set, oset, cur_set;
1096
            target_ulong target_set = arg1;
1097
            sigprocmask(0, NULL, &cur_set);
1098
            target_to_host_old_sigset(&set, &target_set);
1099
            sigorset(&set, &set, &cur_set);
1100
            sigprocmask(SIG_SETMASK, &set, &oset);
1101
            host_to_target_old_sigset(&target_set, &oset);
1102
            ret = target_set;
1103
        }
1104
        break;
1105
    case TARGET_NR_sigprocmask:
1106
        {
1107
            int how = arg1;
1108
            sigset_t set, oldset, *set_ptr;
1109
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1110
            
1111
            if (pset) {
1112
                switch(how) {
1113
                case TARGET_SIG_BLOCK:
1114
                    how = SIG_BLOCK;
1115
                    break;
1116
                case TARGET_SIG_UNBLOCK:
1117
                    how = SIG_UNBLOCK;
1118
                    break;
1119
                case TARGET_SIG_SETMASK:
1120
                    how = SIG_SETMASK;
1121
                    break;
1122
                default:
1123
                    ret = -EINVAL;
1124
                    goto fail;
1125
                }
1126
                target_to_host_old_sigset(&set, pset);
1127
                set_ptr = &set;
1128
            } else {
1129
                how = 0;
1130
                set_ptr = NULL;
1131
            }
1132
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1133
            if (!is_error(ret) && poldset) {
1134
                host_to_target_old_sigset(poldset, &oldset);
1135
            }
1136
        }
1137
        break;
1138
    case TARGET_NR_rt_sigprocmask:
1139
        {
1140
            int how = arg1;
1141
            sigset_t set, oldset, *set_ptr;
1142
            target_sigset_t *pset = (void *)arg2;
1143
            target_sigset_t *poldset = (void *)arg3;
1144
            
1145
            if (pset) {
1146
                switch(how) {
1147
                case TARGET_SIG_BLOCK:
1148
                    how = SIG_BLOCK;
1149
                    break;
1150
                case TARGET_SIG_UNBLOCK:
1151
                    how = SIG_UNBLOCK;
1152
                    break;
1153
                case TARGET_SIG_SETMASK:
1154
                    how = SIG_SETMASK;
1155
                    break;
1156
                default:
1157
                    ret = -EINVAL;
1158
                    goto fail;
1159
                }
1160
                target_to_host_sigset(&set, pset);
1161
                set_ptr = &set;
1162
            } else {
1163
                how = 0;
1164
                set_ptr = NULL;
1165
            }
1166
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1167
            if (!is_error(ret) && poldset) {
1168
                host_to_target_sigset(poldset, &oldset);
1169
            }
1170
        }
1171
        break;
1172
    case TARGET_NR_sigpending:
1173
        {
1174
            sigset_t set;
1175
            ret = get_errno(sigpending(&set));
1176
            if (!is_error(ret)) {
1177
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1178
            }
1179
        }
1180
        break;
1181
    case TARGET_NR_rt_sigpending:
1182
        {
1183
            sigset_t set;
1184
            ret = get_errno(sigpending(&set));
1185
            if (!is_error(ret)) {
1186
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1187
            }
1188
        }
1189
        break;
1190
    case TARGET_NR_sigsuspend:
1191
        {
1192
            sigset_t set;
1193
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1194
            ret = get_errno(sigsuspend(&set));
1195
        }
1196
        break;
1197
    case TARGET_NR_rt_sigsuspend:
1198
        {
1199
            sigset_t set;
1200
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1201
            ret = get_errno(sigsuspend(&set));
1202
        }
1203
        break;
1204
    case TARGET_NR_rt_sigtimedwait:
1205
        {
1206
            target_sigset_t *target_set = (void *)arg1;
1207
            target_siginfo_t *target_uinfo = (void *)arg2;
1208
            struct target_timespec *target_uts = (void *)arg3;
1209
            sigset_t set;
1210
            struct timespec uts, *puts;
1211
            siginfo_t uinfo;
1212
            
1213
            target_to_host_sigset(&set, target_set);
1214
            if (target_uts) {
1215
                puts = &uts;
1216
                puts->tv_sec = tswapl(target_uts->tv_sec);
1217
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1218
            } else {
1219
                puts = NULL;
1220
            }
1221
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1222
            if (!is_error(ret) && target_uinfo) {
1223
                host_to_target_siginfo(target_uinfo, &uinfo);
1224
            }
1225
        }
1226
        break;
1227
    case TARGET_NR_rt_sigqueueinfo:
1228
        {
1229
            siginfo_t uinfo;
1230
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1231
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1232
        }
1233
        break;
1234
    case TARGET_NR_sigreturn:
1235
        /* NOTE: ret is eax, so not transcoding must be done */
1236
        ret = do_sigreturn(cpu_env);
1237
        break;
1238
    case TARGET_NR_rt_sigreturn:
1239
        /* NOTE: ret is eax, so not transcoding must be done */
1240
        ret = do_rt_sigreturn(cpu_env);
1241
        break;
1242
    case TARGET_NR_setreuid:
1243
        ret = get_errno(setreuid(arg1, arg2));
1244
        break;
1245
    case TARGET_NR_setregid:
1246
        ret = get_errno(setregid(arg1, arg2));
1247
        break;
1248
    case TARGET_NR_sethostname:
1249
        ret = get_errno(sethostname((const char *)arg1, arg2));
1250
        break;
1251
    case TARGET_NR_setrlimit:
1252
        {
1253
            /* XXX: convert resource ? */
1254
            int resource = arg1;
1255
            struct target_rlimit *target_rlim = (void *)arg2;
1256
            struct rlimit rlim;
1257
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1258
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1259
            ret = get_errno(setrlimit(resource, &rlim));
1260
        }
1261
        break;
1262
    case TARGET_NR_getrlimit:
1263
        {
1264
            /* XXX: convert resource ? */
1265
            int resource = arg1;
1266
            struct target_rlimit *target_rlim = (void *)arg2;
1267
            struct rlimit rlim;
1268
            
1269
            ret = get_errno(getrlimit(resource, &rlim));
1270
            if (!is_error(ret)) {
1271
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1272
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1273
            }
1274
        }
1275
        break;
1276
    case TARGET_NR_getrusage:
1277
        goto unimplemented;
1278
    case TARGET_NR_gettimeofday:
1279
        {
1280
            struct target_timeval *target_tv = (void *)arg1;
1281
            struct timeval tv;
1282
            ret = get_errno(gettimeofday(&tv, NULL));
1283
            if (!is_error(ret)) {
1284
                target_tv->tv_sec = tswapl(tv.tv_sec);
1285
                target_tv->tv_usec = tswapl(tv.tv_usec);
1286
            }
1287
        }
1288
        break;
1289
    case TARGET_NR_settimeofday:
1290
        {
1291
            struct target_timeval *target_tv = (void *)arg1;
1292
            struct timeval tv;
1293
            tv.tv_sec = tswapl(target_tv->tv_sec);
1294
            tv.tv_usec = tswapl(target_tv->tv_usec);
1295
            ret = get_errno(settimeofday(&tv, NULL));
1296
        }
1297
        break;
1298
    case TARGET_NR_getgroups:
1299
        goto unimplemented;
1300
    case TARGET_NR_setgroups:
1301
        goto unimplemented;
1302
    case TARGET_NR_select:
1303
        goto unimplemented;
1304
    case TARGET_NR_symlink:
1305
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1306
        break;
1307
    case TARGET_NR_oldlstat:
1308
        goto unimplemented;
1309
    case TARGET_NR_readlink:
1310
        ret = get_errno(readlink((const char *)arg1, (char *)arg2, arg3));
1311
        break;
1312
    case TARGET_NR_uselib:
1313
        goto unimplemented;
1314
    case TARGET_NR_swapon:
1315
        ret = get_errno(swapon((const char *)arg1, arg2));
1316
        break;
1317
    case TARGET_NR_reboot:
1318
        goto unimplemented;
1319
    case TARGET_NR_readdir:
1320
        goto unimplemented;
1321
#ifdef TARGET_I386
1322
    case TARGET_NR_mmap:
1323
        {
1324
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1325
            vptr = (uint32_t *)arg1;
1326
            v1 = tswap32(vptr[0]);
1327
            v2 = tswap32(vptr[1]);
1328
            v3 = tswap32(vptr[2]);
1329
            v4 = tswap32(vptr[3]);
1330
            v5 = tswap32(vptr[4]);
1331
            v6 = tswap32(vptr[5]);
1332
            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
1333
        }
1334
        break;
1335
#endif
1336
#ifdef TARGET_I386
1337
    case TARGET_NR_mmap2:
1338
#else
1339
    case TARGET_NR_mmap:
1340
#endif
1341
        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
1342
        break;
1343
    case TARGET_NR_munmap:
1344
        ret = get_errno(munmap((void *)arg1, arg2));
1345
        break;
1346
    case TARGET_NR_mprotect:
1347
        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
1348
        break;
1349
    case TARGET_NR_mremap:
1350
        ret = get_errno((long)mremap((void *)arg1, arg2, arg3, arg4));
1351
        break;
1352
    case TARGET_NR_msync:
1353
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1354
        break;
1355
    case TARGET_NR_mlock:
1356
        ret = get_errno(mlock((void *)arg1, arg2));
1357
        break;
1358
    case TARGET_NR_munlock:
1359
        ret = get_errno(munlock((void *)arg1, arg2));
1360
        break;
1361
    case TARGET_NR_mlockall:
1362
        ret = get_errno(mlockall(arg1));
1363
        break;
1364
    case TARGET_NR_munlockall:
1365
        ret = get_errno(munlockall());
1366
        break;
1367
    case TARGET_NR_truncate:
1368
        ret = get_errno(truncate((const char *)arg1, arg2));
1369
        break;
1370
    case TARGET_NR_ftruncate:
1371
        ret = get_errno(ftruncate(arg1, arg2));
1372
        break;
1373
    case TARGET_NR_fchmod:
1374
        ret = get_errno(fchmod(arg1, arg2));
1375
        break;
1376
    case TARGET_NR_fchown:
1377
        ret = get_errno(fchown(arg1, arg2, arg3));
1378
        break;
1379
    case TARGET_NR_getpriority:
1380
        ret = get_errno(getpriority(arg1, arg2));
1381
        break;
1382
    case TARGET_NR_setpriority:
1383
        ret = get_errno(setpriority(arg1, arg2, arg3));
1384
        break;
1385
    case TARGET_NR_profil:
1386
        goto unimplemented;
1387
    case TARGET_NR_statfs:
1388
        stfs = (void *)arg2;
1389
        ret = get_errno(sys_statfs((const char *)arg1, stfs));
1390
    convert_statfs:
1391
        if (!is_error(ret)) {
1392
            tswap32s(&stfs->f_type);
1393
            tswap32s(&stfs->f_bsize);
1394
            tswap32s(&stfs->f_blocks);
1395
            tswap32s(&stfs->f_bfree);
1396
            tswap32s(&stfs->f_bavail);
1397
            tswap32s(&stfs->f_files);
1398
            tswap32s(&stfs->f_ffree);
1399
            tswap32s(&stfs->f_fsid.val[0]);
1400
            tswap32s(&stfs->f_fsid.val[1]);
1401
            tswap32s(&stfs->f_namelen);
1402
        }
1403
        break;
1404
    case TARGET_NR_fstatfs:
1405
        stfs = (void *)arg2;
1406
        ret = get_errno(sys_fstatfs(arg1, stfs));
1407
        goto convert_statfs;
1408
    case TARGET_NR_ioperm:
1409
        goto unimplemented;
1410
    case TARGET_NR_socketcall:
1411
        ret = do_socketcall(arg1, (long *)arg2);
1412
        break;
1413
    case TARGET_NR_syslog:
1414
        goto unimplemented;
1415
    case TARGET_NR_setitimer:
1416
        {
1417
            struct target_itimerval *target_value = (void *)arg2;
1418
            struct target_itimerval *target_ovalue = (void *)arg3;
1419
            struct itimerval value, ovalue, *pvalue;
1420

    
1421
            if (target_value) {
1422
                pvalue = &value;
1423
                target_to_host_timeval(&pvalue->it_interval, 
1424
                                       &target_value->it_interval);
1425
                target_to_host_timeval(&pvalue->it_value, 
1426
                                       &target_value->it_value);
1427
            } else {
1428
                pvalue = NULL;
1429
            }
1430
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
1431
            if (!is_error(ret) && target_ovalue) {
1432
                host_to_target_timeval(&target_ovalue->it_interval, 
1433
                                       &ovalue.it_interval);
1434
                host_to_target_timeval(&target_ovalue->it_value, 
1435
                                       &ovalue.it_value);
1436
            }
1437
        }
1438
        break;
1439
    case TARGET_NR_getitimer:
1440
        {
1441
            struct target_itimerval *target_value = (void *)arg2;
1442
            struct itimerval value;
1443
            
1444
            ret = get_errno(getitimer(arg1, &value));
1445
            if (!is_error(ret) && target_value) {
1446
                host_to_target_timeval(&target_value->it_interval, 
1447
                                       &value.it_interval);
1448
                host_to_target_timeval(&target_value->it_value, 
1449
                                       &value.it_value);
1450
            }
1451
        }
1452
        break;
1453
    case TARGET_NR_stat:
1454
        ret = get_errno(stat((const char *)arg1, &st));
1455
        goto do_stat;
1456
    case TARGET_NR_lstat:
1457
        ret = get_errno(lstat((const char *)arg1, &st));
1458
        goto do_stat;
1459
    case TARGET_NR_fstat:
1460
        {
1461
            ret = get_errno(fstat(arg1, &st));
1462
        do_stat:
1463
            if (!is_error(ret)) {
1464
                struct target_stat *target_st = (void *)arg2;
1465
                target_st->st_dev = tswap16(st.st_dev);
1466
                target_st->st_ino = tswapl(st.st_ino);
1467
                target_st->st_mode = tswap16(st.st_mode);
1468
                target_st->st_nlink = tswap16(st.st_nlink);
1469
                target_st->st_uid = tswap16(st.st_uid);
1470
                target_st->st_gid = tswap16(st.st_gid);
1471
                target_st->st_rdev = tswap16(st.st_rdev);
1472
                target_st->st_size = tswapl(st.st_size);
1473
                target_st->st_blksize = tswapl(st.st_blksize);
1474
                target_st->st_blocks = tswapl(st.st_blocks);
1475
                target_st->st_atime = tswapl(st.st_atime);
1476
                target_st->st_mtime = tswapl(st.st_mtime);
1477
                target_st->st_ctime = tswapl(st.st_ctime);
1478
            }
1479
        }
1480
        break;
1481
    case TARGET_NR_olduname:
1482
        goto unimplemented;
1483
    case TARGET_NR_iopl:
1484
        goto unimplemented;
1485
    case TARGET_NR_vhangup:
1486
        ret = get_errno(vhangup());
1487
        break;
1488
    case TARGET_NR_idle:
1489
        goto unimplemented;
1490
    case TARGET_NR_vm86old:
1491
        goto unimplemented;
1492
    case TARGET_NR_wait4:
1493
        {
1494
            int status;
1495
            target_long *status_ptr = (void *)arg2;
1496
            struct rusage rusage, *rusage_ptr;
1497
            struct target_rusage *target_rusage = (void *)arg4;
1498
            if (target_rusage)
1499
                rusage_ptr = &rusage;
1500
            else
1501
                rusage_ptr = NULL;
1502
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
1503
            if (!is_error(ret)) {
1504
                if (status_ptr)
1505
                    *status_ptr = tswap32(status);
1506
                if (target_rusage) {
1507
                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
1508
                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
1509
                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
1510
                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
1511
                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
1512
                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
1513
                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
1514
                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
1515
                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
1516
                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
1517
                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
1518
                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
1519
                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
1520
                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
1521
                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
1522
                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
1523
                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
1524
                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
1525
                }
1526
            }
1527
        }
1528
        break;
1529
    case TARGET_NR_swapoff:
1530
        ret = get_errno(swapoff((const char *)arg1));
1531
        break;
1532
    case TARGET_NR_sysinfo:
1533
        goto unimplemented;
1534
    case TARGET_NR_ipc:
1535
        goto unimplemented;
1536
    case TARGET_NR_fsync:
1537
        ret = get_errno(fsync(arg1));
1538
        break;
1539
    case TARGET_NR_clone:
1540
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
1541
        break;
1542
    case TARGET_NR_setdomainname:
1543
        ret = get_errno(setdomainname((const char *)arg1, arg2));
1544
        break;
1545
    case TARGET_NR_uname:
1546
        /* no need to transcode because we use the linux syscall */
1547
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
1548
        break;
1549
#ifdef TARGET_I386
1550
    case TARGET_NR_modify_ldt:
1551
        ret = get_errno(gemu_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
1552
        break;
1553
#endif
1554
    case TARGET_NR_adjtimex:
1555
        goto unimplemented;
1556
    case TARGET_NR_create_module:
1557
    case TARGET_NR_init_module:
1558
    case TARGET_NR_delete_module:
1559
    case TARGET_NR_get_kernel_syms:
1560
        goto unimplemented;
1561
    case TARGET_NR_quotactl:
1562
        goto unimplemented;
1563
    case TARGET_NR_getpgid:
1564
        ret = get_errno(getpgid(arg1));
1565
        break;
1566
    case TARGET_NR_fchdir:
1567
        ret = get_errno(fchdir(arg1));
1568
        break;
1569
    case TARGET_NR_bdflush:
1570
        goto unimplemented;
1571
    case TARGET_NR_sysfs:
1572
        goto unimplemented;
1573
    case TARGET_NR_personality:
1574
        ret = get_errno(personality(arg1));
1575
        break;
1576
    case TARGET_NR_afs_syscall:
1577
        goto unimplemented;
1578
    case TARGET_NR_setfsuid:
1579
        ret = get_errno(setfsuid(arg1));
1580
        break;
1581
    case TARGET_NR_setfsgid:
1582
        ret = get_errno(setfsgid(arg1));
1583
        break;
1584
    case TARGET_NR__llseek:
1585
        {
1586
            int64_t res;
1587
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
1588
            *(int64_t *)arg4 = tswap64(res);
1589
        }
1590
        break;
1591
    case TARGET_NR_getdents:
1592
#if TARGET_LONG_SIZE != 4
1593
#error not supported
1594
#endif
1595
        {
1596
            struct dirent *dirp = (void *)arg2;
1597
            long count = arg3;
1598

    
1599
            ret = get_errno(sys_getdents(arg1, dirp, count));
1600
            if (!is_error(ret)) {
1601
                struct dirent *de;
1602
                int len = ret;
1603
                int reclen;
1604
                de = dirp;
1605
                while (len > 0) {
1606
                    reclen = tswap16(de->d_reclen);
1607
                    if (reclen > len)
1608
                        break;
1609
                    de->d_reclen = reclen;
1610
                    tswapls(&de->d_ino);
1611
                    tswapls(&de->d_off);
1612
                    de = (struct dirent *)((char *)de + reclen);
1613
                    len -= reclen;
1614
                }
1615
            }
1616
        }
1617
        break;
1618
    case TARGET_NR_getdents64:
1619
        {
1620
            struct dirent64 *dirp = (void *)arg2;
1621
            long count = arg3;
1622
            ret = get_errno(sys_getdents64(arg1, dirp, count));
1623
            if (!is_error(ret)) {
1624
                struct dirent64 *de;
1625
                int len = ret;
1626
                int reclen;
1627
                de = dirp;
1628
                while (len > 0) {
1629
                    reclen = tswap16(de->d_reclen);
1630
                    if (reclen > len)
1631
                        break;
1632
                    de->d_reclen = reclen;
1633
                    tswap64s(&de->d_ino);
1634
                    tswap64s(&de->d_off);
1635
                    de = (struct dirent64 *)((char *)de + reclen);
1636
                    len -= reclen;
1637
                }
1638
            }
1639
        }
1640
        break;
1641
    case TARGET_NR__newselect:
1642
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
1643
                        (void *)arg5);
1644
        break;
1645
    case TARGET_NR_poll:
1646
        {
1647
            struct target_pollfd *target_pfd = (void *)arg1;
1648
            unsigned int nfds = arg2;
1649
            int timeout = arg3;
1650
            struct pollfd *pfd;
1651
            int i;
1652

    
1653
            pfd = alloca(sizeof(struct pollfd) * nfds);
1654
            for(i = 0; i < nfds; i++) {
1655
                pfd->fd = tswap32(target_pfd->fd);
1656
                pfd->events = tswap16(target_pfd->events);
1657
            }
1658
            ret = get_errno(poll(pfd, nfds, timeout));
1659
            if (!is_error(ret)) {
1660
                for(i = 0; i < nfds; i++) {
1661
                    target_pfd->revents = tswap16(pfd->revents);
1662
                }
1663
            }
1664
        }
1665
        break;
1666
    case TARGET_NR_flock:
1667
        /* NOTE: the flock constant seems to be the same for every
1668
           Linux platform */
1669
        ret = get_errno(flock(arg1, arg2));
1670
        break;
1671
    case TARGET_NR_readv:
1672
        {
1673
            int count = arg3;
1674
            int i;
1675
            struct iovec *vec;
1676
            struct target_iovec *target_vec = (void *)arg2;
1677

    
1678
            vec = alloca(count * sizeof(struct iovec));
1679
            for(i = 0;i < count; i++) {
1680
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
1681
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
1682
            }
1683
            ret = get_errno(readv(arg1, vec, count));
1684
        }
1685
        break;
1686
    case TARGET_NR_writev:
1687
        {
1688
            int count = arg3;
1689
            int i;
1690
            struct iovec *vec;
1691
            struct target_iovec *target_vec = (void *)arg2;
1692

    
1693
            vec = alloca(count * sizeof(struct iovec));
1694
            for(i = 0;i < count; i++) {
1695
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
1696
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
1697
            }
1698
            ret = get_errno(writev(arg1, vec, count));
1699
        }
1700
        break;
1701
    case TARGET_NR_getsid:
1702
        ret = get_errno(getsid(arg1));
1703
        break;
1704
    case TARGET_NR_fdatasync:
1705
        goto unimplemented;
1706
    case TARGET_NR__sysctl:
1707
        goto unimplemented;
1708
    case TARGET_NR_sched_setparam:
1709
        goto unimplemented;
1710
    case TARGET_NR_sched_getparam:
1711
        goto unimplemented;
1712
    case TARGET_NR_sched_setscheduler:
1713
        goto unimplemented;
1714
    case TARGET_NR_sched_getscheduler:
1715
        goto unimplemented;
1716
    case TARGET_NR_sched_yield:
1717
        ret = get_errno(sched_yield());
1718
        break;
1719
    case TARGET_NR_sched_get_priority_max:
1720
    case TARGET_NR_sched_get_priority_min:
1721
    case TARGET_NR_sched_rr_get_interval:
1722
        goto unimplemented;
1723
        
1724
    case TARGET_NR_nanosleep:
1725
        {
1726
            struct target_timespec *target_req = (void *)arg1;
1727
            struct target_timespec *target_rem = (void *)arg2;
1728
            struct timespec req, rem;
1729
            req.tv_sec = tswapl(target_req->tv_sec);
1730
            req.tv_nsec = tswapl(target_req->tv_nsec);
1731
            ret = get_errno(nanosleep(&req, &rem));
1732
            if (target_rem) {
1733
                target_rem->tv_sec = tswapl(rem.tv_sec);
1734
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
1735
            }
1736
        }
1737
        break;
1738
    case TARGET_NR_setresuid:
1739
        ret = get_errno(setresuid(low2highuid(arg1), 
1740
                                  low2highuid(arg2), 
1741
                                  low2highuid(arg3)));
1742
        break;
1743
    case TARGET_NR_getresuid:
1744
        {
1745
            int ruid, euid, suid;
1746
            ret = get_errno(getresuid(&ruid, &euid, &suid));
1747
            if (!is_error(ret)) {
1748
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
1749
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
1750
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
1751
            }
1752
        }
1753
        break;
1754
    case TARGET_NR_setresgid:
1755
        ret = get_errno(setresgid(low2highgid(arg1), 
1756
                                  low2highgid(arg2), 
1757
                                  low2highgid(arg3)));
1758
        break;
1759
    case TARGET_NR_getresgid:
1760
        {
1761
            int rgid, egid, sgid;
1762
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
1763
            if (!is_error(ret)) {
1764
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
1765
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
1766
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
1767
            }
1768
        }
1769
        break;
1770
    case TARGET_NR_vm86:
1771
    case TARGET_NR_query_module:
1772
    case TARGET_NR_nfsservctl:
1773
    case TARGET_NR_prctl:
1774
    case TARGET_NR_pread:
1775
    case TARGET_NR_pwrite:
1776
        goto unimplemented;
1777
    case TARGET_NR_chown:
1778
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1779
        break;
1780
    case TARGET_NR_getcwd:
1781
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
1782
        break;
1783
    case TARGET_NR_capget:
1784
    case TARGET_NR_capset:
1785
    case TARGET_NR_sigaltstack:
1786
    case TARGET_NR_sendfile:
1787
    case TARGET_NR_getpmsg:
1788
    case TARGET_NR_putpmsg:
1789
    case TARGET_NR_vfork:
1790
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
1791
        break;
1792
    case TARGET_NR_ugetrlimit:
1793
    case TARGET_NR_truncate64:
1794
    case TARGET_NR_ftruncate64:
1795
        goto unimplemented;
1796
    case TARGET_NR_stat64:
1797
        ret = get_errno(stat((const char *)arg1, &st));
1798
        goto do_stat64;
1799
    case TARGET_NR_lstat64:
1800
        ret = get_errno(lstat((const char *)arg1, &st));
1801
        goto do_stat64;
1802
    case TARGET_NR_fstat64:
1803
        {
1804
            ret = get_errno(fstat(arg1, &st));
1805
        do_stat64:
1806
            if (!is_error(ret)) {
1807
                struct target_stat64 *target_st = (void *)arg2;
1808
                target_st->st_dev = tswap16(st.st_dev);
1809
                target_st->st_ino = tswapl(st.st_ino);
1810
                target_st->st_mode = tswap16(st.st_mode);
1811
                target_st->st_nlink = tswap16(st.st_nlink);
1812
                target_st->st_uid = tswap16(st.st_uid);
1813
                target_st->st_gid = tswap16(st.st_gid);
1814
                target_st->st_rdev = tswap16(st.st_rdev);
1815
                /* XXX: better use of kernel struct */
1816
                target_st->st_size = tswapl(st.st_size);
1817
                target_st->st_blksize = tswapl(st.st_blksize);
1818
                target_st->st_blocks = tswapl(st.st_blocks);
1819
                target_st->st_atime = tswapl(st.st_atime);
1820
                target_st->st_mtime = tswapl(st.st_mtime);
1821
                target_st->st_ctime = tswapl(st.st_ctime);
1822
            }
1823
        }
1824
        break;
1825

    
1826
    case TARGET_NR_lchown32:
1827
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
1828
        break;
1829
    case TARGET_NR_getuid32:
1830
        ret = get_errno(getuid());
1831
        break;
1832
    case TARGET_NR_getgid32:
1833
        ret = get_errno(getgid());
1834
        break;
1835
    case TARGET_NR_geteuid32:
1836
        ret = get_errno(geteuid());
1837
        break;
1838
    case TARGET_NR_getegid32:
1839
        ret = get_errno(getegid());
1840
        break;
1841
    case TARGET_NR_setreuid32:
1842
        ret = get_errno(setreuid(arg1, arg2));
1843
        break;
1844
    case TARGET_NR_setregid32:
1845
        ret = get_errno(setregid(arg1, arg2));
1846
        break;
1847
    case TARGET_NR_getgroups32:
1848
        goto unimplemented;
1849
    case TARGET_NR_setgroups32:
1850
        goto unimplemented;
1851
    case TARGET_NR_fchown32:
1852
        ret = get_errno(fchown(arg1, arg2, arg3));
1853
        break;
1854
    case TARGET_NR_setresuid32:
1855
        ret = get_errno(setresuid(arg1, arg2, arg3));
1856
        break;
1857
    case TARGET_NR_getresuid32:
1858
        {
1859
            int ruid, euid, suid;
1860
            ret = get_errno(getresuid(&ruid, &euid, &suid));
1861
            if (!is_error(ret)) {
1862
                *(uint32_t *)arg1 = tswap32(ruid);
1863
                *(uint32_t *)arg2 = tswap32(euid);
1864
                *(uint32_t *)arg3 = tswap32(suid);
1865
            }
1866
        }
1867
        break;
1868
    case TARGET_NR_setresgid32:
1869
        ret = get_errno(setresgid(arg1, arg2, arg3));
1870
        break;
1871
    case TARGET_NR_getresgid32:
1872
        {
1873
            int rgid, egid, sgid;
1874
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
1875
            if (!is_error(ret)) {
1876
                *(uint32_t *)arg1 = tswap32(rgid);
1877
                *(uint32_t *)arg2 = tswap32(egid);
1878
                *(uint32_t *)arg3 = tswap32(sgid);
1879
            }
1880
        }
1881
        break;
1882
    case TARGET_NR_chown32:
1883
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1884
        break;
1885
    case TARGET_NR_setuid32:
1886
        ret = get_errno(setuid(arg1));
1887
        break;
1888
    case TARGET_NR_setgid32:
1889
        ret = get_errno(setgid(arg1));
1890
        break;
1891
    case TARGET_NR_setfsuid32:
1892
        ret = get_errno(setfsuid(arg1));
1893
        break;
1894
    case TARGET_NR_setfsgid32:
1895
        ret = get_errno(setfsgid(arg1));
1896
        break;
1897
    case TARGET_NR_pivot_root:
1898
        goto unimplemented;
1899
    case TARGET_NR_mincore:
1900
        goto unimplemented;
1901
    case TARGET_NR_madvise:
1902
        goto unimplemented;
1903
#if TARGET_LONG_BITS == 32
1904
    case TARGET_NR_fcntl64:
1905
        switch(arg2) {
1906
        case F_GETLK64:
1907
        case F_SETLK64:
1908
        case F_SETLKW64:
1909
            goto unimplemented;
1910
        default:
1911
            ret = get_errno(fcntl(arg1, arg2, arg3));
1912
            break;
1913
        }
1914
        break;
1915
#endif
1916
    case TARGET_NR_security:
1917
        goto unimplemented;
1918
    case TARGET_NR_gettid:
1919
        ret = get_errno(gettid());
1920
        break;
1921
    case TARGET_NR_readahead:
1922
    case TARGET_NR_setxattr:
1923
    case TARGET_NR_lsetxattr:
1924
    case TARGET_NR_fsetxattr:
1925
    case TARGET_NR_getxattr:
1926
    case TARGET_NR_lgetxattr:
1927
    case TARGET_NR_fgetxattr:
1928
    case TARGET_NR_listxattr:
1929
    case TARGET_NR_llistxattr:
1930
    case TARGET_NR_flistxattr:
1931
    case TARGET_NR_removexattr:
1932
    case TARGET_NR_lremovexattr:
1933
    case TARGET_NR_fremovexattr:
1934
        goto unimplemented;
1935
    default:
1936
    unimplemented:
1937
        gemu_log("gemu: Unsupported syscall: %d\n", num);
1938
        ret = -ENOSYS;
1939
        break;
1940
    }
1941
 fail:
1942
    return ret;
1943
}
1944