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1
/*
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 *  Linux syscalls
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 * 
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
6
 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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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>
21
#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <sys/stat.h>
34
#include <sys/mount.h>
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#include <sys/resource.h>
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#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
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#include <sched.h>
40
#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/times.h>
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#include <sys/shm.h>
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#include <sys/statfs.h>
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#include <utime.h>
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#include <sys/sysinfo.h>
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//#include <sys/user.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
51

    
52
#define termios host_termios
53
#define winsize host_winsize
54
#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 */
57
#define ltchars host_ltchars /* same as target */
58

    
59
#include <linux/termios.h>
60
#include <linux/unistd.h>
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#include <linux/utsname.h>
62
#include <linux/cdrom.h>
63
#include <linux/hdreg.h>
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#include <linux/soundcard.h>
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#include <linux/dirent.h>
66
#include <linux/kd.h>
67

    
68
#include "qemu.h"
69

    
70
//#define DEBUG
71

    
72
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
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/* 16 bit uid wrappers emulation */
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#define USE_UID16
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#endif
76

    
77
//#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])
80

    
81

    
82
#undef _syscall0
83
#undef _syscall1
84
#undef _syscall2
85
#undef _syscall3
86
#undef _syscall4
87
#undef _syscall5
88
#undef _syscall6
89

    
90
#define _syscall0(type,name)                \
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type name (void)                        \
92
{                                        \
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        return syscall(__NR_##name);        \
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}
95

    
96
#define _syscall1(type,name,type1,arg1)                \
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type name (type1 arg1)                                \
98
{                                                \
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        return syscall(__NR_##name, arg1);        \
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}
101

    
102
#define _syscall2(type,name,type1,arg1,type2,arg2)        \
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type name (type1 arg1,type2 arg2)                        \
104
{                                                        \
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        return syscall(__NR_##name, arg1, arg2);        \
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}
107

    
108
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
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type name (type1 arg1,type2 arg2,type3 arg3)                        \
110
{                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3);                \
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}
113

    
114
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4)                                \
116
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4);                        \
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}
119

    
120
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
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                  type5,arg5)                                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)                \
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{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5);                \
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}
126

    
127

    
128
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
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                  type5,arg5,type6,arg6)                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6)        \
131
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6);        \
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}
134

    
135

    
136
#define __NR_sys_uname __NR_uname
137
#define __NR_sys_getcwd1 __NR_getcwd
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#define __NR_sys_getdents __NR_getdents
139
#define __NR_sys_getdents64 __NR_getdents64
140
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
141

    
142
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
143
#define __NR__llseek __NR_lseek
144
#endif
145

    
146
#ifdef __NR_gettid
147
_syscall0(int, gettid)
148
#else
149
static int gettid(void) {
150
    return -ENOSYS;
151
}
152
#endif
153
_syscall1(int,sys_uname,struct new_utsname *,buf)
154
_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);
157
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
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          loff_t *, res, uint, wh);
159
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
160
#ifdef __NR_exit_group
161
_syscall1(int,exit_group,int,error_code)
162
#endif
163

    
164
extern int personality(int);
165
extern int flock(int, int);
166
extern int setfsuid(int);
167
extern int setfsgid(int);
168
extern int setresuid(uid_t, uid_t, uid_t);
169
extern int getresuid(uid_t *, uid_t *, uid_t *);
170
extern int setresgid(gid_t, gid_t, gid_t);
171
extern int getresgid(gid_t *, gid_t *, gid_t *);
172
extern int setgroups(int, gid_t *);
173

    
174
static inline long get_errno(long ret)
175
{
176
    if (ret == -1)
177
        return -errno;
178
    else
179
        return ret;
180
}
181

    
182
static inline int is_error(long ret)
183
{
184
    return (unsigned long)ret >= (unsigned long)(-4096);
185
}
186

    
187
static target_ulong target_brk;
188
static target_ulong target_original_brk;
189

    
190
void target_set_brk(target_ulong new_brk)
191
{
192
    target_original_brk = target_brk = new_brk;
193
}
194

    
195
long do_brk(target_ulong new_brk)
196
{
197
    target_ulong brk_page;
198
    long mapped_addr;
199
    int        new_alloc_size;
200

    
201
    if (!new_brk)
202
        return target_brk;
203
    if (new_brk < target_original_brk)
204
        return -ENOMEM;
205
    
206
    brk_page = HOST_PAGE_ALIGN(target_brk);
207

    
208
    /* If the new brk is less than this, set it and we're done... */
209
    if (new_brk < brk_page) {
210
        target_brk = new_brk;
211
            return target_brk;
212
    }
213

    
214
    /* We need to allocate more memory after the brk... */
215
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
216
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 
217
                                        PROT_READ|PROT_WRITE,
218
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
219
    if (is_error(mapped_addr)) {
220
        return mapped_addr;
221
    } else {
222
        target_brk = new_brk;
223
            return target_brk;
224
    }
225
}
226

    
227
static inline fd_set *target_to_host_fds(fd_set *fds, 
228
                                         target_long *target_fds, int n)
229
{
230
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
231
    return (fd_set *)target_fds;
232
#else
233
    int i, b;
234
    if (target_fds) {
235
        FD_ZERO(fds);
236
        for(i = 0;i < n; i++) {
237
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
238
                 (i & (TARGET_LONG_BITS - 1))) & 1;
239
            if (b)
240
                FD_SET(i, fds);
241
        }
242
        return fds;
243
    } else {
244
        return NULL;
245
    }
246
#endif
247
}
248

    
249
static inline void host_to_target_fds(target_long *target_fds, 
250
                                      fd_set *fds, int n)
251
{
252
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
253
    /* nothing to do */
254
#else
255
    int i, nw, j, k;
256
    target_long v;
257

    
258
    if (target_fds) {
259
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
260
        k = 0;
261
        for(i = 0;i < nw; i++) {
262
            v = 0;
263
            for(j = 0; j < TARGET_LONG_BITS; j++) {
264
                v |= ((FD_ISSET(k, fds) != 0) << j);
265
                k++;
266
            }
267
            target_fds[i] = tswapl(v);
268
        }
269
    }
270
#endif
271
}
272

    
273
#if defined(__alpha__)
274
#define HOST_HZ 1024
275
#else
276
#define HOST_HZ 100
277
#endif
278

    
279
static inline long host_to_target_clock_t(long ticks)
280
{
281
#if HOST_HZ == TARGET_HZ
282
    return ticks;
283
#else
284
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
285
#endif
286
}
287

    
288
static inline void host_to_target_rusage(target_ulong target_addr,
289
                                         const struct rusage *rusage)
290
{
291
    struct target_rusage *target_rusage;
292

    
293
    lock_user_struct(target_rusage, target_addr, 0);
294
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
295
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
296
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
297
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
298
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
299
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
300
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
301
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
302
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
303
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
304
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
305
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
306
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
307
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
308
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
309
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
310
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
311
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
312
    unlock_user_struct(target_rusage, target_addr, 1);
313
}
314

    
315
static inline void target_to_host_timeval(struct timeval *tv,
316
                                          target_ulong target_addr)
317
{
318
    struct target_timeval *target_tv;
319

    
320
    lock_user_struct(target_tv, target_addr, 1);
321
    tv->tv_sec = tswapl(target_tv->tv_sec);
322
    tv->tv_usec = tswapl(target_tv->tv_usec);
323
    unlock_user_struct(target_tv, target_addr, 0);
324
}
325

    
326
static inline void host_to_target_timeval(target_ulong target_addr,
327
                                          const struct timeval *tv)
328
{
329
    struct target_timeval *target_tv;
330

    
331
    lock_user_struct(target_tv, target_addr, 0);
332
    target_tv->tv_sec = tswapl(tv->tv_sec);
333
    target_tv->tv_usec = tswapl(tv->tv_usec);
334
    unlock_user_struct(target_tv, target_addr, 1);
335
}
336

    
337

    
338
static long do_select(long n, 
339
                      target_ulong rfd_p, target_ulong wfd_p, 
340
                      target_ulong efd_p, target_ulong target_tv)
341
{
342
    fd_set rfds, wfds, efds;
343
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
344
    target_long *target_rfds, *target_wfds, *target_efds;
345
    struct timeval tv, *tv_ptr;
346
    long ret;
347
    int ok;
348

    
349
    if (rfd_p) {
350
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
351
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
352
    } else {
353
        target_rfds = NULL;
354
        rfds_ptr = NULL;
355
    }
356
    if (wfd_p) {
357
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
358
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
359
    } else {
360
        target_wfds = NULL;
361
        wfds_ptr = NULL;
362
    }
363
    if (efd_p) {
364
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
365
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
366
    } else {
367
        target_efds = NULL;
368
        efds_ptr = NULL;
369
    }
370
            
371
    if (target_tv) {
372
        target_to_host_timeval(&tv, target_tv);
373
        tv_ptr = &tv;
374
    } else {
375
        tv_ptr = NULL;
376
    }
377
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
378
    ok = !is_error(ret);
379

    
380
    if (ok) {
381
        host_to_target_fds(target_rfds, rfds_ptr, n);
382
        host_to_target_fds(target_wfds, wfds_ptr, n);
383
        host_to_target_fds(target_efds, efds_ptr, n);
384

    
385
        if (target_tv) {
386
            host_to_target_timeval(target_tv, &tv);
387
        }
388
    }
389
    if (target_rfds)
390
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
391
    if (target_wfds)
392
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
393
    if (target_efds)
394
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
395

    
396
    return ret;
397
}
398

    
399
static inline void target_to_host_sockaddr(struct sockaddr *addr,
400
                                           target_ulong target_addr,
401
                                           socklen_t len)
402
{
403
    struct target_sockaddr *target_saddr;
404

    
405
    target_saddr = lock_user(target_addr, len, 1);
406
    memcpy(addr, target_saddr, len);
407
    addr->sa_family = tswap16(target_saddr->sa_family);
408
    unlock_user(target_saddr, target_addr, 0);
409
}
410

    
411
static inline void host_to_target_sockaddr(target_ulong target_addr,
412
                                           struct sockaddr *addr,
413
                                           socklen_t len)
414
{
415
    struct target_sockaddr *target_saddr;
416

    
417
    target_saddr = lock_user(target_addr, len, 0);
418
    memcpy(target_saddr, addr, len);
419
    target_saddr->sa_family = tswap16(addr->sa_family);
420
    unlock_user(target_saddr, target_addr, len);
421
}
422

    
423
/* ??? Should this also swap msgh->name?  */
424
static inline void target_to_host_cmsg(struct msghdr *msgh,
425
                                       struct target_msghdr *target_msgh)
426
{
427
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
428
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
429
    socklen_t space = 0;
430

    
431
    while (cmsg && target_cmsg) {
432
        void *data = CMSG_DATA(cmsg);
433
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
434

    
435
        int len = tswapl(target_cmsg->cmsg_len) 
436
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
437

    
438
        space += CMSG_SPACE(len);
439
        if (space > msgh->msg_controllen) {
440
            space -= CMSG_SPACE(len);
441
            gemu_log("Host cmsg overflow\n");
442
            break;
443
        }
444

    
445
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
446
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
447
        cmsg->cmsg_len = CMSG_LEN(len);
448

    
449
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
450
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
451
            memcpy(data, target_data, len);
452
        } else {
453
            int *fd = (int *)data;
454
            int *target_fd = (int *)target_data;
455
            int i, numfds = len / sizeof(int);
456

    
457
            for (i = 0; i < numfds; i++)
458
                fd[i] = tswap32(target_fd[i]);
459
        }
460

    
461
        cmsg = CMSG_NXTHDR(msgh, cmsg);
462
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
463
    }
464

    
465
    msgh->msg_controllen = space;
466
}
467

    
468
/* ??? Should this also swap msgh->name?  */
469
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
470
                                       struct msghdr *msgh)
471
{
472
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
473
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
474
    socklen_t space = 0;
475

    
476
    while (cmsg && target_cmsg) {
477
        void *data = CMSG_DATA(cmsg);
478
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
479

    
480
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
481

    
482
        space += TARGET_CMSG_SPACE(len);
483
        if (space > tswapl(target_msgh->msg_controllen)) {
484
            space -= TARGET_CMSG_SPACE(len);
485
            gemu_log("Target cmsg overflow\n");
486
            break;
487
        }
488

    
489
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
490
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
491
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
492

    
493
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
494
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
495
            memcpy(target_data, data, len);
496
        } else {
497
            int *fd = (int *)data;
498
            int *target_fd = (int *)target_data;
499
            int i, numfds = len / sizeof(int);
500

    
501
            for (i = 0; i < numfds; i++)
502
                target_fd[i] = tswap32(fd[i]);
503
        }
504

    
505
        cmsg = CMSG_NXTHDR(msgh, cmsg);
506
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
507
    }
508

    
509
    msgh->msg_controllen = tswapl(space);
510
}
511

    
512
static long do_setsockopt(int sockfd, int level, int optname, 
513
                          target_ulong optval, socklen_t optlen)
514
{
515
    int val, ret;
516
            
517
    switch(level) {
518
    case SOL_TCP:
519
        /* TCP options all take an 'int' value.  */
520
        if (optlen < sizeof(uint32_t))
521
            return -EINVAL;
522
        
523
        val = tget32(optval);
524
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
525
        break;
526
    case SOL_IP:
527
        switch(optname) {
528
        case IP_TOS:
529
        case IP_TTL:
530
        case IP_HDRINCL:
531
        case IP_ROUTER_ALERT:
532
        case IP_RECVOPTS:
533
        case IP_RETOPTS:
534
        case IP_PKTINFO:
535
        case IP_MTU_DISCOVER:
536
        case IP_RECVERR:
537
        case IP_RECVTOS:
538
#ifdef IP_FREEBIND
539
        case IP_FREEBIND:
540
#endif
541
        case IP_MULTICAST_TTL:
542
        case IP_MULTICAST_LOOP:
543
            val = 0;
544
            if (optlen >= sizeof(uint32_t)) {
545
                val = tget32(optval);
546
            } else if (optlen >= 1) {
547
                val = tget8(optval);
548
            }
549
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
550
            break;
551
        default:
552
            goto unimplemented;
553
        }
554
        break;
555
    case SOL_SOCKET:
556
        switch (optname) {
557
            /* Options with 'int' argument.  */
558
        case SO_DEBUG:
559
        case SO_REUSEADDR:
560
        case SO_TYPE:
561
        case SO_ERROR:
562
        case SO_DONTROUTE:
563
        case SO_BROADCAST:
564
        case SO_SNDBUF:
565
        case SO_RCVBUF:
566
        case SO_KEEPALIVE:
567
        case SO_OOBINLINE:
568
        case SO_NO_CHECK:
569
        case SO_PRIORITY:
570
#ifdef SO_BSDCOMPAT
571
        case SO_BSDCOMPAT:
572
#endif
573
        case SO_PASSCRED:
574
        case SO_TIMESTAMP:
575
        case SO_RCVLOWAT:
576
        case SO_RCVTIMEO:
577
        case SO_SNDTIMEO:
578
            if (optlen < sizeof(uint32_t))
579
                return -EINVAL;
580

    
581
            val = tget32(optval);
582
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
583
            break;
584
        default:
585
            goto unimplemented;
586
        }
587
        break;
588
    default:
589
    unimplemented:
590
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
591
        ret = -ENOSYS;
592
    }
593
    return ret;
594
}
595

    
596
static long do_getsockopt(int sockfd, int level, int optname, 
597
                          target_ulong optval, target_ulong optlen)
598
{
599
    int len, lv, val, ret;
600

    
601
    switch(level) {
602
    case SOL_SOCKET:
603
        switch (optname) {
604
        case SO_LINGER:
605
        case SO_RCVTIMEO:
606
        case SO_SNDTIMEO:
607
        case SO_PEERCRED:
608
        case SO_PEERNAME:
609
            /* These don't just return a single integer */
610
            goto unimplemented;
611
        default:
612
            goto int_case;
613
        }
614
        break;
615
    case SOL_TCP:
616
        /* TCP options all take an 'int' value.  */
617
    int_case:
618
        len = tget32(optlen);
619
        if (len < 0)
620
            return -EINVAL;
621
        lv = sizeof(int);
622
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
623
        if (ret < 0)
624
            return ret;
625
        val = tswap32(val);
626
        if (len > lv)
627
            len = lv;
628
        if (len == 4)
629
            tput32(optval, val);
630
        else
631
            tput8(optval, val);
632
        tput32(optlen, len);
633
        break;
634
    case SOL_IP:
635
        switch(optname) {
636
        case IP_TOS:
637
        case IP_TTL:
638
        case IP_HDRINCL:
639
        case IP_ROUTER_ALERT:
640
        case IP_RECVOPTS:
641
        case IP_RETOPTS:
642
        case IP_PKTINFO:
643
        case IP_MTU_DISCOVER:
644
        case IP_RECVERR:
645
        case IP_RECVTOS:
646
#ifdef IP_FREEBIND
647
        case IP_FREEBIND:
648
#endif
649
        case IP_MULTICAST_TTL:
650
        case IP_MULTICAST_LOOP:
651
            len = tget32(optlen);
652
            if (len < 0)
653
                return -EINVAL;
654
            lv = sizeof(int);
655
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
656
            if (ret < 0)
657
                return ret;
658
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
659
                len = 1;
660
                tput32(optlen, len);
661
                tput8(optval, val);
662
            } else {
663
                if (len > sizeof(int))
664
                    len = sizeof(int);
665
                tput32(optlen, len);
666
                tput32(optval, val);
667
            }
668
            break;
669
        default:
670
            goto unimplemented;
671
        }
672
        break;
673
    default:
674
    unimplemented:
675
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
676
                 level, optname);
677
        ret = -ENOSYS;
678
        break;
679
    }
680
    return ret;
681
}
682

    
683
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
684
                       int count, int copy)
685
{
686
    struct target_iovec *target_vec;
687
    target_ulong base;
688
    int i;
689

    
690
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
691
    for(i = 0;i < count; i++) {
692
        base = tswapl(target_vec[i].iov_base);
693
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
694
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
695
    }
696
    unlock_user (target_vec, target_addr, 0);
697
}
698

    
699
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
700
                         int count, int copy)
701
{
702
    struct target_iovec *target_vec;
703
    target_ulong base;
704
    int i;
705

    
706
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
707
    for(i = 0;i < count; i++) {
708
        base = tswapl(target_vec[i].iov_base);
709
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
710
    }
711
    unlock_user (target_vec, target_addr, 0);
712
}
713

    
714
static long do_socketcall(int num, target_ulong vptr)
715
{
716
    long ret;
717
    const int n = sizeof(target_ulong);
718

    
719
    switch(num) {
720
    case SOCKOP_socket:
721
        {
722
            int domain = tgetl(vptr);
723
            int type = tgetl(vptr + n);
724
            int protocol = tgetl(vptr + 2 * n);
725

    
726
            ret = get_errno(socket(domain, type, protocol));
727
        }
728
        break;
729
    case SOCKOP_bind:
730
        {
731
            int sockfd = tgetl(vptr);
732
            target_ulong target_addr = tgetl(vptr + n);
733
            socklen_t addrlen = tgetl(vptr + 2 * n);
734
            void *addr = alloca(addrlen);
735

    
736
            target_to_host_sockaddr(addr, target_addr, addrlen);
737
            ret = get_errno(bind(sockfd, addr, addrlen));
738
        }
739
        break;
740
    case SOCKOP_connect:
741
        {
742
            int sockfd = tgetl(vptr);
743
            target_ulong target_addr = tgetl(vptr + n);
744
            socklen_t addrlen = tgetl(vptr + 2 * n);
745
            void *addr = alloca(addrlen);
746

    
747
            target_to_host_sockaddr(addr, target_addr, addrlen);
748
            ret = get_errno(connect(sockfd, addr, addrlen));
749
        }
750
        break;
751
    case SOCKOP_listen:
752
        {
753
            int sockfd = tgetl(vptr);
754
            int backlog = tgetl(vptr + n);
755

    
756
            ret = get_errno(listen(sockfd, backlog));
757
        }
758
        break;
759
    case SOCKOP_accept:
760
        {
761
            int sockfd = tgetl(vptr);
762
            target_ulong target_addr = tgetl(vptr + n);
763
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
764
            socklen_t addrlen = tget32(target_addrlen);
765
            void *addr = alloca(addrlen);
766

    
767
            ret = get_errno(accept(sockfd, addr, &addrlen));
768
            if (!is_error(ret)) {
769
                host_to_target_sockaddr(target_addr, addr, addrlen);
770
                tput32(target_addrlen, addrlen);
771
            }
772
        }
773
        break;
774
    case SOCKOP_getsockname:
775
        {
776
            int sockfd = tgetl(vptr);
777
            target_ulong target_addr = tgetl(vptr + n);
778
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
779
            socklen_t addrlen = tget32(target_addrlen);
780
            void *addr = alloca(addrlen);
781

    
782
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
783
            if (!is_error(ret)) {
784
                host_to_target_sockaddr(target_addr, addr, addrlen);
785
                tput32(target_addrlen, addrlen);
786
            }
787
        }
788
        break;
789
    case SOCKOP_getpeername:
790
        {
791
            int sockfd = tgetl(vptr);
792
            target_ulong target_addr = tgetl(vptr + n);
793
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
794
            socklen_t addrlen = tget32(target_addrlen);
795
            void *addr = alloca(addrlen);
796

    
797
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
798
            if (!is_error(ret)) {
799
                host_to_target_sockaddr(target_addr, addr, addrlen);
800
                tput32(target_addrlen, addrlen);
801
            }
802
        }
803
        break;
804
    case SOCKOP_socketpair:
805
        {
806
            int domain = tgetl(vptr);
807
            int type = tgetl(vptr + n);
808
            int protocol = tgetl(vptr + 2 * n);
809
            target_ulong target_tab = tgetl(vptr + 3 * n);
810
            int tab[2];
811

    
812
            ret = get_errno(socketpair(domain, type, protocol, tab));
813
            if (!is_error(ret)) {
814
                tput32(target_tab, tab[0]);
815
                tput32(target_tab + 4, tab[1]);
816
            }
817
        }
818
        break;
819
    case SOCKOP_send:
820
        {
821
            int sockfd = tgetl(vptr);
822
            target_ulong msg = tgetl(vptr + n);
823
            size_t len = tgetl(vptr + 2 * n);
824
            int flags = tgetl(vptr + 3 * n);
825
            void *host_msg;
826

    
827
            host_msg = lock_user(msg, len, 1);
828
            ret = get_errno(send(sockfd, host_msg, len, flags));
829
            unlock_user(host_msg, msg, 0);
830
        }
831
        break;
832
    case SOCKOP_recv:
833
        {
834
            int sockfd = tgetl(vptr);
835
            target_ulong msg = tgetl(vptr + n);
836
            size_t len = tgetl(vptr + 2 * n);
837
            int flags = tgetl(vptr + 3 * n);
838
            void *host_msg;
839

    
840
            host_msg = lock_user(msg, len, 0);
841
            ret = get_errno(recv(sockfd, host_msg, len, flags));
842
            unlock_user(host_msg, msg, ret);
843
        }
844
        break;
845
    case SOCKOP_sendto:
846
        {
847
            int sockfd = tgetl(vptr);
848
            target_ulong msg = tgetl(vptr + n);
849
            size_t len = tgetl(vptr + 2 * n);
850
            int flags = tgetl(vptr + 3 * n);
851
            target_ulong target_addr = tgetl(vptr + 4 * n);
852
            socklen_t addrlen = tgetl(vptr + 5 * n);
853
            void *addr = alloca(addrlen);
854
            void *host_msg;
855

    
856
            host_msg = lock_user(msg, len, 1);
857
            target_to_host_sockaddr(addr, target_addr, addrlen);
858
            ret = get_errno(sendto(sockfd, host_msg, len, flags, addr, addrlen));
859
            unlock_user(host_msg, msg, 0);
860
        }
861
        break;
862
    case SOCKOP_recvfrom:
863
        {
864
            int sockfd = tgetl(vptr);
865
            target_ulong msg = tgetl(vptr + n);
866
            size_t len = tgetl(vptr + 2 * n);
867
            int flags = tgetl(vptr + 3 * n);
868
            target_ulong target_addr = tgetl(vptr + 4 * n);
869
            target_ulong target_addrlen = tgetl(vptr + 5 * n);
870
            socklen_t addrlen = tget32(target_addrlen);
871
            void *addr = alloca(addrlen);
872
            void *host_msg;
873

    
874
            host_msg = lock_user(msg, len, 0);
875
            ret = get_errno(recvfrom(sockfd, host_msg, len, flags, addr, &addrlen));
876
            if (!is_error(ret)) {
877
                host_to_target_sockaddr(target_addr, addr, addrlen);
878
                tput32(target_addrlen, addrlen);
879
                unlock_user(host_msg, msg, len);
880
            } else {
881
                unlock_user(host_msg, msg, 0);
882
            }
883
        }
884
        break;
885
    case SOCKOP_shutdown:
886
        {
887
            int sockfd = tgetl(vptr);
888
            int how = tgetl(vptr + n);
889

    
890
            ret = get_errno(shutdown(sockfd, how));
891
        }
892
        break;
893
    case SOCKOP_sendmsg:
894
    case SOCKOP_recvmsg:
895
        {
896
            int fd;
897
            target_ulong target_msg;
898
            struct target_msghdr *msgp;
899
            struct msghdr msg;
900
            int flags, count;
901
            struct iovec *vec;
902
            target_ulong target_vec;
903
            int send = (num == SOCKOP_sendmsg);
904

    
905
            target_msg = tgetl(vptr + n);
906
            lock_user_struct(msgp, target_msg, 1);
907
            if (msgp->msg_name) {
908
                msg.msg_namelen = tswap32(msgp->msg_namelen);
909
                msg.msg_name = alloca(msg.msg_namelen);
910
                target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
911
                                        msg.msg_namelen);
912
            } else {
913
                msg.msg_name = NULL;
914
                msg.msg_namelen = 0;
915
            }
916
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
917
            msg.msg_control = alloca(msg.msg_controllen);
918
            msg.msg_flags = tswap32(msgp->msg_flags);
919

    
920
            count = tswapl(msgp->msg_iovlen);
921
            vec = alloca(count * sizeof(struct iovec));
922
            target_vec = tswapl(msgp->msg_iov);
923
            lock_iovec(vec, target_vec, count, send);
924
            msg.msg_iovlen = count;
925
            msg.msg_iov = vec;
926

    
927
            fd = tgetl(vptr);
928
            flags = tgetl(vptr + 2 * n);
929
            if (send) {
930
                target_to_host_cmsg(&msg, msgp);
931
                ret = get_errno(sendmsg(fd, &msg, flags));
932
            } else {
933
                ret = get_errno(recvmsg(fd, &msg, flags));
934
                if (!is_error(ret))
935
                  host_to_target_cmsg(msgp, &msg);
936
            }
937
            unlock_iovec(vec, target_vec, count, !send);
938
        }
939
        break;
940
    case SOCKOP_setsockopt:
941
        {
942
            int sockfd = tgetl(vptr);
943
            int level = tgetl(vptr + n);
944
            int optname = tgetl(vptr + 2 * n);
945
            target_ulong optval = tgetl(vptr + 3 * n);
946
            socklen_t optlen = tgetl(vptr + 4 * n);
947

    
948
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
949
        }
950
        break;
951
    case SOCKOP_getsockopt:
952
        {
953
            int sockfd = tgetl(vptr);
954
            int level = tgetl(vptr + n);
955
            int optname = tgetl(vptr + 2 * n);
956
            target_ulong optval = tgetl(vptr + 3 * n);
957
            target_ulong poptlen = tgetl(vptr + 4 * n);
958

    
959
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
960
        }
961
        break;
962
    default:
963
        gemu_log("Unsupported socketcall: %d\n", num);
964
        ret = -ENOSYS;
965
        break;
966
    }
967
    return ret;
968
}
969

    
970

    
971
#define N_SHM_REGIONS        32
972

    
973
static struct shm_region {
974
    uint32_t        start;
975
    uint32_t        size;
976
} shm_regions[N_SHM_REGIONS];
977

    
978
/* ??? This only works with linear mappings.  */
979
static long do_ipc(long call, long first, long second, long third,
980
                   long ptr, long fifth)
981
{
982
    int version;
983
    long ret = 0;
984
    unsigned long raddr;
985
    struct shmid_ds shm_info;
986
    int i;
987

    
988
    version = call >> 16;
989
    call &= 0xffff;
990

    
991
    switch (call) {
992
    case IPCOP_shmat:
993
        /* SHM_* flags are the same on all linux platforms */
994
        ret = get_errno((long) shmat(first, (void *) ptr, second));
995
        if (is_error(ret))
996
            break;
997
        raddr = ret;
998
        /* find out the length of the shared memory segment */
999
        
1000
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1001
        if (is_error(ret)) {
1002
            /* can't get length, bail out */
1003
            shmdt((void *) raddr);
1004
            break;
1005
        }
1006
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1007
                       PAGE_VALID | PAGE_READ |
1008
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1009
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1010
            if (shm_regions[i].start == 0) {
1011
                shm_regions[i].start = raddr;
1012
                shm_regions[i].size = shm_info.shm_segsz;
1013
                break;
1014
            }
1015
        }
1016
        if (put_user(raddr, (uint32_t *)third))
1017
            return -EFAULT;
1018
        ret = 0;
1019
        break;
1020
    case IPCOP_shmdt:
1021
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1022
            if (shm_regions[i].start == ptr) {
1023
                shm_regions[i].start = 0;
1024
                page_set_flags(ptr, shm_regions[i].size, 0);
1025
                break;
1026
            }
1027
        }
1028
        ret = get_errno(shmdt((void *) ptr));
1029
        break;
1030

    
1031
    case IPCOP_shmget:
1032
        /* IPC_* flag values are the same on all linux platforms */
1033
        ret = get_errno(shmget(first, second, third));
1034
        break;
1035

    
1036
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1037
    case IPCOP_shmctl:
1038
        switch(second) {
1039
        case IPC_RMID:
1040
        case SHM_LOCK:
1041
        case SHM_UNLOCK:
1042
            ret = get_errno(shmctl(first, second, NULL));
1043
            break;
1044
        default:
1045
            goto unimplemented;
1046
        }
1047
        break;
1048
    default:
1049
    unimplemented:
1050
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1051
        ret = -ENOSYS;
1052
        break;
1053
    }
1054
    return ret;
1055
}
1056

    
1057
/* kernel structure types definitions */
1058
#define IFNAMSIZ        16
1059

    
1060
#define STRUCT(name, list...) STRUCT_ ## name,
1061
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1062
enum {
1063
#include "syscall_types.h"
1064
};
1065
#undef STRUCT
1066
#undef STRUCT_SPECIAL
1067

    
1068
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1069
#define STRUCT_SPECIAL(name)
1070
#include "syscall_types.h"
1071
#undef STRUCT
1072
#undef STRUCT_SPECIAL
1073

    
1074
typedef struct IOCTLEntry {
1075
    unsigned int target_cmd;
1076
    unsigned int host_cmd;
1077
    const char *name;
1078
    int access;
1079
    const argtype arg_type[5];
1080
} IOCTLEntry;
1081

    
1082
#define IOC_R 0x0001
1083
#define IOC_W 0x0002
1084
#define IOC_RW (IOC_R | IOC_W)
1085

    
1086
#define MAX_STRUCT_SIZE 4096
1087

    
1088
IOCTLEntry ioctl_entries[] = {
1089
#define IOCTL(cmd, access, types...) \
1090
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1091
#include "ioctls.h"
1092
    { 0, 0, },
1093
};
1094

    
1095
/* ??? Implement proper locking for ioctls.  */
1096
static long do_ioctl(long fd, long cmd, long arg)
1097
{
1098
    const IOCTLEntry *ie;
1099
    const argtype *arg_type;
1100
    long ret;
1101
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1102
    int target_size;
1103
    void *argptr;
1104

    
1105
    ie = ioctl_entries;
1106
    for(;;) {
1107
        if (ie->target_cmd == 0) {
1108
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1109
            return -ENOSYS;
1110
        }
1111
        if (ie->target_cmd == cmd)
1112
            break;
1113
        ie++;
1114
    }
1115
    arg_type = ie->arg_type;
1116
#if defined(DEBUG)
1117
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1118
#endif
1119
    switch(arg_type[0]) {
1120
    case TYPE_NULL:
1121
        /* no argument */
1122
        ret = get_errno(ioctl(fd, ie->host_cmd));
1123
        break;
1124
    case TYPE_PTRVOID:
1125
    case TYPE_INT:
1126
        /* int argment */
1127
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1128
        break;
1129
    case TYPE_PTR:
1130
        arg_type++;
1131
        target_size = thunk_type_size(arg_type, 0);
1132
        switch(ie->access) {
1133
        case IOC_R:
1134
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1135
            if (!is_error(ret)) {
1136
                argptr = lock_user(arg, target_size, 0);
1137
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1138
                unlock_user(argptr, arg, target_size);
1139
            }
1140
            break;
1141
        case IOC_W:
1142
            argptr = lock_user(arg, target_size, 1);
1143
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1144
            unlock_user(argptr, arg, 0);
1145
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1146
            break;
1147
        default:
1148
        case IOC_RW:
1149
            argptr = lock_user(arg, target_size, 1);
1150
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1151
            unlock_user(argptr, arg, 0);
1152
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1153
            if (!is_error(ret)) {
1154
                argptr = lock_user(arg, target_size, 0);
1155
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1156
                unlock_user(argptr, arg, target_size);
1157
            }
1158
            break;
1159
        }
1160
        break;
1161
    default:
1162
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1163
        ret = -ENOSYS;
1164
        break;
1165
    }
1166
    return ret;
1167
}
1168

    
1169
bitmask_transtbl iflag_tbl[] = {
1170
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1171
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1172
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1173
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1174
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1175
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1176
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1177
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1178
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1179
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1180
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1181
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1182
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1183
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1184
        { 0, 0, 0, 0 }
1185
};
1186

    
1187
bitmask_transtbl oflag_tbl[] = {
1188
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1189
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1190
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1191
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1192
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1193
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1194
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1195
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1196
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1197
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1198
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1199
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1200
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1201
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1202
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1203
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1204
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1205
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1206
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1207
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1208
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1209
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1210
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1211
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1212
        { 0, 0, 0, 0 }
1213
};
1214

    
1215
bitmask_transtbl cflag_tbl[] = {
1216
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1217
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1218
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1219
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1220
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1221
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1222
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1223
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1224
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1225
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1226
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1227
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1228
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1229
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1230
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1231
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1232
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1233
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1234
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1235
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1236
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1237
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1238
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1239
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1240
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1241
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1242
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1243
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1244
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1245
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1246
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1247
        { 0, 0, 0, 0 }
1248
};
1249

    
1250
bitmask_transtbl lflag_tbl[] = {
1251
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1252
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1253
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1254
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1255
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1256
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1257
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1258
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1259
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1260
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1261
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1262
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1263
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1264
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1265
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1266
        { 0, 0, 0, 0 }
1267
};
1268

    
1269
static void target_to_host_termios (void *dst, const void *src)
1270
{
1271
    struct host_termios *host = dst;
1272
    const struct target_termios *target = src;
1273
    
1274
    host->c_iflag = 
1275
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1276
    host->c_oflag = 
1277
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1278
    host->c_cflag = 
1279
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1280
    host->c_lflag = 
1281
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1282
    host->c_line = target->c_line;
1283
    
1284
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
1285
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
1286
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
1287
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
1288
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
1289
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
1290
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
1291
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
1292
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
1293
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
1294
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
1295
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
1296
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
1297
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
1298
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
1299
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
1300
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
1301
}
1302
  
1303
static void host_to_target_termios (void *dst, const void *src)
1304
{
1305
    struct target_termios *target = dst;
1306
    const struct host_termios *host = src;
1307

    
1308
    target->c_iflag = 
1309
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1310
    target->c_oflag = 
1311
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1312
    target->c_cflag = 
1313
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1314
    target->c_lflag = 
1315
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1316
    target->c_line = host->c_line;
1317
  
1318
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1319
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1320
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1321
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1322
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1323
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1324
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1325
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1326
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1327
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1328
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1329
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1330
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1331
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1332
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1333
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1334
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1335
}
1336

    
1337
StructEntry struct_termios_def = {
1338
    .convert = { host_to_target_termios, target_to_host_termios },
1339
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1340
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1341
};
1342

    
1343
static bitmask_transtbl mmap_flags_tbl[] = {
1344
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1345
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1346
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1347
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1348
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1349
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1350
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1351
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1352
        { 0, 0, 0, 0 }
1353
};
1354

    
1355
static bitmask_transtbl fcntl_flags_tbl[] = {
1356
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1357
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1358
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1359
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1360
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1361
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1362
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1363
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1364
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1365
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1366
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1367
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1368
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1369
#if defined(O_DIRECT)
1370
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1371
#endif
1372
        { 0, 0, 0, 0 }
1373
};
1374

    
1375
#if defined(TARGET_I386)
1376

    
1377
/* NOTE: there is really one LDT for all the threads */
1378
uint8_t *ldt_table;
1379

    
1380
static int read_ldt(target_ulong ptr, unsigned long bytecount)
1381
{
1382
    int size;
1383
    void *p;
1384

    
1385
    if (!ldt_table)
1386
        return 0;
1387
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1388
    if (size > bytecount)
1389
        size = bytecount;
1390
    p = lock_user(ptr, size, 0);
1391
    /* ??? Shoudl this by byteswapped?  */
1392
    memcpy(p, ldt_table, size);
1393
    unlock_user(p, ptr, size);
1394
    return size;
1395
}
1396

    
1397
/* XXX: add locking support */
1398
static int write_ldt(CPUX86State *env, 
1399
                     target_ulong ptr, unsigned long bytecount, int oldmode)
1400
{
1401
    struct target_modify_ldt_ldt_s ldt_info;
1402
    struct target_modify_ldt_ldt_s *target_ldt_info;
1403
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1404
    int seg_not_present, useable;
1405
    uint32_t *lp, entry_1, entry_2;
1406

    
1407
    if (bytecount != sizeof(ldt_info))
1408
        return -EINVAL;
1409
    lock_user_struct(target_ldt_info, ptr, 1);
1410
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1411
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1412
    ldt_info.limit = tswap32(target_ldt_info->limit);
1413
    ldt_info.flags = tswap32(target_ldt_info->flags);
1414
    unlock_user_struct(target_ldt_info, ptr, 0);
1415
    
1416
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1417
        return -EINVAL;
1418
    seg_32bit = ldt_info.flags & 1;
1419
    contents = (ldt_info.flags >> 1) & 3;
1420
    read_exec_only = (ldt_info.flags >> 3) & 1;
1421
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1422
    seg_not_present = (ldt_info.flags >> 5) & 1;
1423
    useable = (ldt_info.flags >> 6) & 1;
1424

    
1425
    if (contents == 3) {
1426
        if (oldmode)
1427
            return -EINVAL;
1428
        if (seg_not_present == 0)
1429
            return -EINVAL;
1430
    }
1431
    /* allocate the LDT */
1432
    if (!ldt_table) {
1433
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1434
        if (!ldt_table)
1435
            return -ENOMEM;
1436
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1437
        env->ldt.base = h2g(ldt_table);
1438
        env->ldt.limit = 0xffff;
1439
    }
1440

    
1441
    /* NOTE: same code as Linux kernel */
1442
    /* Allow LDTs to be cleared by the user. */
1443
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1444
        if (oldmode ||
1445
            (contents == 0                &&
1446
             read_exec_only == 1        &&
1447
             seg_32bit == 0                &&
1448
             limit_in_pages == 0        &&
1449
             seg_not_present == 1        &&
1450
             useable == 0 )) {
1451
            entry_1 = 0;
1452
            entry_2 = 0;
1453
            goto install;
1454
        }
1455
    }
1456
    
1457
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1458
        (ldt_info.limit & 0x0ffff);
1459
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1460
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1461
        (ldt_info.limit & 0xf0000) |
1462
        ((read_exec_only ^ 1) << 9) |
1463
        (contents << 10) |
1464
        ((seg_not_present ^ 1) << 15) |
1465
        (seg_32bit << 22) |
1466
        (limit_in_pages << 23) |
1467
        0x7000;
1468
    if (!oldmode)
1469
        entry_2 |= (useable << 20);
1470

    
1471
    /* Install the new entry ...  */
1472
install:
1473
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1474
    lp[0] = tswap32(entry_1);
1475
    lp[1] = tswap32(entry_2);
1476
    return 0;
1477
}
1478

    
1479
/* specific and weird i386 syscalls */
1480
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1481
{
1482
    int ret = -ENOSYS;
1483
    
1484
    switch (func) {
1485
    case 0:
1486
        ret = read_ldt(ptr, bytecount);
1487
        break;
1488
    case 1:
1489
        ret = write_ldt(env, ptr, bytecount, 1);
1490
        break;
1491
    case 0x11:
1492
        ret = write_ldt(env, ptr, bytecount, 0);
1493
        break;
1494
    }
1495
    return ret;
1496
}
1497

    
1498
#endif /* defined(TARGET_I386) */
1499

    
1500
/* this stack is the equivalent of the kernel stack associated with a
1501
   thread/process */
1502
#define NEW_STACK_SIZE 8192
1503

    
1504
static int clone_func(void *arg)
1505
{
1506
    CPUState *env = arg;
1507
    cpu_loop(env);
1508
    /* never exits */
1509
    return 0;
1510
}
1511

    
1512
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1513
{
1514
    int ret;
1515
    TaskState *ts;
1516
    uint8_t *new_stack;
1517
    CPUState *new_env;
1518
    
1519
    if (flags & CLONE_VM) {
1520
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1521
        memset(ts, 0, sizeof(TaskState));
1522
        new_stack = ts->stack;
1523
        ts->used = 1;
1524
        /* add in task state list */
1525
        ts->next = first_task_state;
1526
        first_task_state = ts;
1527
        /* we create a new CPU instance. */
1528
        new_env = cpu_init();
1529
        memcpy(new_env, env, sizeof(CPUState));
1530
#if defined(TARGET_I386)
1531
        if (!newsp)
1532
            newsp = env->regs[R_ESP];
1533
        new_env->regs[R_ESP] = newsp;
1534
        new_env->regs[R_EAX] = 0;
1535
#elif defined(TARGET_ARM)
1536
        if (!newsp)
1537
            newsp = env->regs[13];
1538
        new_env->regs[13] = newsp;
1539
        new_env->regs[0] = 0;
1540
#elif defined(TARGET_SPARC)
1541
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1542
#elif defined(TARGET_MIPS)
1543
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1544
#elif defined(TARGET_PPC)
1545
        if (!newsp)
1546
            newsp = env->gpr[1];
1547
        new_env->gpr[1] = newsp;
1548
        { 
1549
            int i;
1550
            for (i = 7; i < 32; i++)
1551
                new_env->gpr[i] = 0;
1552
        }
1553
#elif defined(TARGET_SH4)
1554
        if (!newsp)
1555
          newsp = env->gregs[15];
1556
        new_env->gregs[15] = newsp;
1557
        /* XXXXX */
1558
#else
1559
#error unsupported target CPU
1560
#endif
1561
        new_env->opaque = ts;
1562
#ifdef __ia64__
1563
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1564
#else
1565
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1566
#endif
1567
    } else {
1568
        /* if no CLONE_VM, we consider it is a fork */
1569
        if ((flags & ~CSIGNAL) != 0)
1570
            return -EINVAL;
1571
        ret = fork();
1572
    }
1573
    return ret;
1574
}
1575

    
1576
static long do_fcntl(int fd, int cmd, target_ulong arg)
1577
{
1578
    struct flock fl;
1579
    struct target_flock *target_fl;
1580
    long ret;
1581

    
1582
    switch(cmd) {
1583
    case TARGET_F_GETLK:
1584
        ret = fcntl(fd, cmd, &fl);
1585
        if (ret == 0) {
1586
            lock_user_struct(target_fl, arg, 0);
1587
            target_fl->l_type = tswap16(fl.l_type);
1588
            target_fl->l_whence = tswap16(fl.l_whence);
1589
            target_fl->l_start = tswapl(fl.l_start);
1590
            target_fl->l_len = tswapl(fl.l_len);
1591
            target_fl->l_pid = tswapl(fl.l_pid);
1592
            unlock_user_struct(target_fl, arg, 1);
1593
        }
1594
        break;
1595
        
1596
    case TARGET_F_SETLK:
1597
    case TARGET_F_SETLKW:
1598
        lock_user_struct(target_fl, arg, 1);
1599
        fl.l_type = tswap16(target_fl->l_type);
1600
        fl.l_whence = tswap16(target_fl->l_whence);
1601
        fl.l_start = tswapl(target_fl->l_start);
1602
        fl.l_len = tswapl(target_fl->l_len);
1603
        fl.l_pid = tswapl(target_fl->l_pid);
1604
        unlock_user_struct(target_fl, arg, 0);
1605
        ret = fcntl(fd, cmd, &fl);
1606
        break;
1607
        
1608
    case TARGET_F_GETLK64:
1609
    case TARGET_F_SETLK64:
1610
    case TARGET_F_SETLKW64:
1611
        ret = -1;
1612
        errno = EINVAL;
1613
        break;
1614

    
1615
    case F_GETFL:
1616
        ret = fcntl(fd, cmd, arg);
1617
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1618
        break;
1619

    
1620
    case F_SETFL:
1621
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1622
        break;
1623

    
1624
    default:
1625
        ret = fcntl(fd, cmd, arg);
1626
        break;
1627
    }
1628
    return ret;
1629
}
1630

    
1631
#ifdef USE_UID16
1632

    
1633
static inline int high2lowuid(int uid)
1634
{
1635
    if (uid > 65535)
1636
        return 65534;
1637
    else
1638
        return uid;
1639
}
1640

    
1641
static inline int high2lowgid(int gid)
1642
{
1643
    if (gid > 65535)
1644
        return 65534;
1645
    else
1646
        return gid;
1647
}
1648

    
1649
static inline int low2highuid(int uid)
1650
{
1651
    if ((int16_t)uid == -1)
1652
        return -1;
1653
    else
1654
        return uid;
1655
}
1656

    
1657
static inline int low2highgid(int gid)
1658
{
1659
    if ((int16_t)gid == -1)
1660
        return -1;
1661
    else
1662
        return gid;
1663
}
1664

    
1665
#endif /* USE_UID16 */
1666

    
1667
void syscall_init(void)
1668
{
1669
    IOCTLEntry *ie;
1670
    const argtype *arg_type;
1671
    int size;
1672

    
1673
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1674
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1675
#include "syscall_types.h"
1676
#undef STRUCT
1677
#undef STRUCT_SPECIAL
1678

    
1679
    /* we patch the ioctl size if necessary. We rely on the fact that
1680
       no ioctl has all the bits at '1' in the size field */
1681
    ie = ioctl_entries;
1682
    while (ie->target_cmd != 0) {
1683
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1684
            TARGET_IOC_SIZEMASK) {
1685
            arg_type = ie->arg_type;
1686
            if (arg_type[0] != TYPE_PTR) {
1687
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1688
                        ie->target_cmd);
1689
                exit(1);
1690
            }
1691
            arg_type++;
1692
            size = thunk_type_size(arg_type, 0);
1693
            ie->target_cmd = (ie->target_cmd & 
1694
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1695
                (size << TARGET_IOC_SIZESHIFT);
1696
        }
1697
        /* automatic consistency check if same arch */
1698
#if defined(__i386__) && defined(TARGET_I386)
1699
        if (ie->target_cmd != ie->host_cmd) {
1700
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1701
                    ie->target_cmd, ie->host_cmd);
1702
        }
1703
#endif
1704
        ie++;
1705
    }
1706
}
1707

    
1708
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1709
{
1710
#ifdef TARGET_WORDS_BIG_ENDIAN
1711
    return ((uint64_t)word0 << 32) | word1;
1712
#else
1713
    return ((uint64_t)word1 << 32) | word0;
1714
#endif
1715
}
1716

    
1717
#ifdef TARGET_NR_truncate64
1718
static inline long target_truncate64(void *cpu_env, const char *arg1,
1719
                                     long arg2, long arg3, long arg4)
1720
{
1721
#ifdef TARGET_ARM
1722
    if (((CPUARMState *)cpu_env)->eabi)
1723
      {
1724
        arg2 = arg3;
1725
        arg3 = arg4;
1726
      }
1727
#endif
1728
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1729
}
1730
#endif
1731

    
1732
#ifdef TARGET_NR_ftruncate64
1733
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1734
                                      long arg3, long arg4)
1735
{
1736
#ifdef TARGET_ARM
1737
    if (((CPUARMState *)cpu_env)->eabi)
1738
      {
1739
        arg2 = arg3;
1740
        arg3 = arg4;
1741
      }
1742
#endif
1743
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1744
}
1745
#endif
1746

    
1747
static inline void target_to_host_timespec(struct timespec *host_ts,
1748
                                           target_ulong target_addr)
1749
{
1750
    struct target_timespec *target_ts;
1751

    
1752
    lock_user_struct(target_ts, target_addr, 1);
1753
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
1754
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1755
    unlock_user_struct(target_ts, target_addr, 0);
1756
}
1757

    
1758
static inline void host_to_target_timespec(target_ulong target_addr,
1759
                                           struct timespec *host_ts)
1760
{
1761
    struct target_timespec *target_ts;
1762

    
1763
    lock_user_struct(target_ts, target_addr, 0);
1764
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
1765
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
1766
    unlock_user_struct(target_ts, target_addr, 1);
1767
}
1768

    
1769
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1770
                long arg4, long arg5, long arg6)
1771
{
1772
    long ret;
1773
    struct stat st;
1774
    struct statfs stfs;
1775
    void *p;
1776
    
1777
#ifdef DEBUG
1778
    gemu_log("syscall %d", num);
1779
#endif
1780
    switch(num) {
1781
    case TARGET_NR_exit:
1782
#ifdef HAVE_GPROF
1783
        _mcleanup();
1784
#endif
1785
        gdb_exit(cpu_env, arg1);
1786
        /* XXX: should free thread stack and CPU env */
1787
        _exit(arg1);
1788
        ret = 0; /* avoid warning */
1789
        break;
1790
    case TARGET_NR_read:
1791
        page_unprotect_range(arg2, arg3);
1792
        p = lock_user(arg2, arg3, 0);
1793
        ret = get_errno(read(arg1, p, arg3));
1794
        unlock_user(p, arg2, ret);
1795
        break;
1796
    case TARGET_NR_write:
1797
        p = lock_user(arg2, arg3, 1);
1798
        ret = get_errno(write(arg1, p, arg3));
1799
        unlock_user(p, arg2, 0);
1800
        break;
1801
    case TARGET_NR_open:
1802
        p = lock_user_string(arg1);
1803
        ret = get_errno(open(path(p),
1804
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
1805
                             arg3));
1806
        unlock_user(p, arg1, 0);
1807
        break;
1808
    case TARGET_NR_close:
1809
        ret = get_errno(close(arg1));
1810
        break;
1811
    case TARGET_NR_brk:
1812
        ret = do_brk(arg1);
1813
        break;
1814
    case TARGET_NR_fork:
1815
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1816
        break;
1817
    case TARGET_NR_waitpid:
1818
        {
1819
            int status;
1820
            ret = get_errno(waitpid(arg1, &status, arg3));
1821
            if (!is_error(ret) && arg2)
1822
                tput32(arg2, status);
1823
        }
1824
        break;
1825
    case TARGET_NR_creat:
1826
        p = lock_user_string(arg1);
1827
        ret = get_errno(creat(p, arg2));
1828
        unlock_user(p, arg1, 0);
1829
        break;
1830
    case TARGET_NR_link:
1831
        {
1832
            void * p2;
1833
            p = lock_user_string(arg1);
1834
            p2 = lock_user_string(arg2);
1835
            ret = get_errno(link(p, p2));
1836
            unlock_user(p2, arg2, 0);
1837
            unlock_user(p, arg1, 0);
1838
        }
1839
        break;
1840
    case TARGET_NR_unlink:
1841
        p = lock_user_string(arg1);
1842
        ret = get_errno(unlink(p));
1843
        unlock_user(p, arg1, 0);
1844
        break;
1845
    case TARGET_NR_execve:
1846
        {
1847
            char **argp, **envp;
1848
            int argc, envc;
1849
            target_ulong gp;
1850
            target_ulong guest_argp;
1851
            target_ulong guest_envp;
1852
            target_ulong addr;
1853
            char **q;
1854

    
1855
            argc = 0;
1856
            guest_argp = arg2;
1857
            for (gp = guest_argp; tgetl(gp); gp++)
1858
                argc++;
1859
            envc = 0;
1860
            guest_envp = arg3;
1861
            for (gp = guest_envp; tgetl(gp); gp++)
1862
                envc++;
1863

    
1864
            argp = alloca((argc + 1) * sizeof(void *));
1865
            envp = alloca((envc + 1) * sizeof(void *));
1866

    
1867
            for (gp = guest_argp, q = argp; ;
1868
                  gp += sizeof(target_ulong), q++) {
1869
                addr = tgetl(gp);
1870
                if (!addr)
1871
                    break;
1872
                *q = lock_user_string(addr);
1873
            }
1874
            *q = NULL;
1875

    
1876
            for (gp = guest_envp, q = envp; ;
1877
                  gp += sizeof(target_ulong), q++) {
1878
                addr = tgetl(gp);
1879
                if (!addr)
1880
                    break;
1881
                *q = lock_user_string(addr);
1882
            }
1883
            *q = NULL;
1884

    
1885
            p = lock_user_string(arg1);
1886
            ret = get_errno(execve(p, argp, envp));
1887
            unlock_user(p, arg1, 0);
1888

    
1889
            for (gp = guest_argp, q = argp; *q;
1890
                  gp += sizeof(target_ulong), q++) {
1891
                addr = tgetl(gp);
1892
                unlock_user(*q, addr, 0);
1893
            }
1894
            for (gp = guest_envp, q = envp; *q;
1895
                  gp += sizeof(target_ulong), q++) {
1896
                addr = tgetl(gp);
1897
                unlock_user(*q, addr, 0);
1898
            }
1899
        }
1900
        break;
1901
    case TARGET_NR_chdir:
1902
        p = lock_user_string(arg1);
1903
        ret = get_errno(chdir(p));
1904
        unlock_user(p, arg1, 0);
1905
        break;
1906
#ifdef TARGET_NR_time
1907
    case TARGET_NR_time:
1908
        {
1909
            time_t host_time;
1910
            ret = get_errno(time(&host_time));
1911
            if (!is_error(ret) && arg1)
1912
                tputl(arg1, host_time);
1913
        }
1914
        break;
1915
#endif
1916
    case TARGET_NR_mknod:
1917
        p = lock_user_string(arg1);
1918
        ret = get_errno(mknod(p, arg2, arg3));
1919
        unlock_user(p, arg1, 0);
1920
        break;
1921
    case TARGET_NR_chmod:
1922
        p = lock_user_string(arg1);
1923
        ret = get_errno(chmod(p, arg2));
1924
        unlock_user(p, arg1, 0);
1925
        break;
1926
#ifdef TARGET_NR_break
1927
    case TARGET_NR_break:
1928
        goto unimplemented;
1929
#endif
1930
#ifdef TARGET_NR_oldstat
1931
    case TARGET_NR_oldstat:
1932
        goto unimplemented;
1933
#endif
1934
    case TARGET_NR_lseek:
1935
        ret = get_errno(lseek(arg1, arg2, arg3));
1936
        break;
1937
    case TARGET_NR_getpid:
1938
        ret = get_errno(getpid());
1939
        break;
1940
    case TARGET_NR_mount:
1941
        /* need to look at the data field */
1942
        goto unimplemented;
1943
    case TARGET_NR_umount:
1944
        p = lock_user_string(arg1);
1945
        ret = get_errno(umount(p));
1946
        unlock_user(p, arg1, 0);
1947
        break;
1948
    case TARGET_NR_stime:
1949
        {
1950
            time_t host_time;
1951
            host_time = tgetl(arg1);
1952
            ret = get_errno(stime(&host_time));
1953
        }
1954
        break;
1955
    case TARGET_NR_ptrace:
1956
        goto unimplemented;
1957
    case TARGET_NR_alarm:
1958
        ret = alarm(arg1);
1959
        break;
1960
#ifdef TARGET_NR_oldfstat
1961
    case TARGET_NR_oldfstat:
1962
        goto unimplemented;
1963
#endif
1964
    case TARGET_NR_pause:
1965
        ret = get_errno(pause());
1966
        break;
1967
    case TARGET_NR_utime:
1968
        {
1969
            struct utimbuf tbuf, *host_tbuf;
1970
            struct target_utimbuf *target_tbuf;
1971
            if (arg2) {
1972
                lock_user_struct(target_tbuf, arg2, 1);
1973
                tbuf.actime = tswapl(target_tbuf->actime);
1974
                tbuf.modtime = tswapl(target_tbuf->modtime);
1975
                unlock_user_struct(target_tbuf, arg2, 0);
1976
                host_tbuf = &tbuf;
1977
            } else {
1978
                host_tbuf = NULL;
1979
            }
1980
            p = lock_user_string(arg1);
1981
            ret = get_errno(utime(p, host_tbuf));
1982
            unlock_user(p, arg1, 0);
1983
        }
1984
        break;
1985
    case TARGET_NR_utimes:
1986
        {
1987
            struct timeval *tvp, tv[2];
1988
            if (arg2) {
1989
                target_to_host_timeval(&tv[0], arg2);
1990
                target_to_host_timeval(&tv[1],
1991
                    arg2 + sizeof (struct target_timeval));
1992
                tvp = tv;
1993
            } else {
1994
                tvp = NULL;
1995
            }
1996
            p = lock_user_string(arg1);
1997
            ret = get_errno(utimes(p, tvp));
1998
            unlock_user(p, arg1, 0);
1999
        }
2000
        break;
2001
#ifdef TARGET_NR_stty
2002
    case TARGET_NR_stty:
2003
        goto unimplemented;
2004
#endif
2005
#ifdef TARGET_NR_gtty
2006
    case TARGET_NR_gtty:
2007
        goto unimplemented;
2008
#endif
2009
    case TARGET_NR_access:
2010
        p = lock_user_string(arg1);
2011
        ret = get_errno(access(p, arg2));
2012
        unlock_user(p, arg1, 0);
2013
        break;
2014
    case TARGET_NR_nice:
2015
        ret = get_errno(nice(arg1));
2016
        break;
2017
#ifdef TARGET_NR_ftime
2018
    case TARGET_NR_ftime:
2019
        goto unimplemented;
2020
#endif
2021
    case TARGET_NR_sync:
2022
        sync();
2023
        ret = 0;
2024
        break;
2025
    case TARGET_NR_kill:
2026
        ret = get_errno(kill(arg1, arg2));
2027
        break;
2028
    case TARGET_NR_rename:
2029
        {
2030
            void *p2;
2031
            p = lock_user_string(arg1);
2032
            p2 = lock_user_string(arg2);
2033
            ret = get_errno(rename(p, p2));
2034
            unlock_user(p2, arg2, 0);
2035
            unlock_user(p, arg1, 0);
2036
        }
2037
        break;
2038
    case TARGET_NR_mkdir:
2039
        p = lock_user_string(arg1);
2040
        ret = get_errno(mkdir(p, arg2));
2041
        unlock_user(p, arg1, 0);
2042
        break;
2043
    case TARGET_NR_rmdir:
2044
        p = lock_user_string(arg1);
2045
        ret = get_errno(rmdir(p));
2046
        unlock_user(p, arg1, 0);
2047
        break;
2048
    case TARGET_NR_dup:
2049
        ret = get_errno(dup(arg1));
2050
        break;
2051
    case TARGET_NR_pipe:
2052
        {
2053
            int host_pipe[2];
2054
            ret = get_errno(pipe(host_pipe));
2055
            if (!is_error(ret)) {
2056
                tput32(arg1, host_pipe[0]);
2057
                tput32(arg1 + 4, host_pipe[1]);
2058
            }
2059
        }
2060
        break;
2061
    case TARGET_NR_times:
2062
        {
2063
            struct target_tms *tmsp;
2064
            struct tms tms;
2065
            ret = get_errno(times(&tms));
2066
            if (arg1) {
2067
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2068
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2069
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2070
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2071
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2072
            }
2073
            if (!is_error(ret))
2074
                ret = host_to_target_clock_t(ret);
2075
        }
2076
        break;
2077
#ifdef TARGET_NR_prof
2078
    case TARGET_NR_prof:
2079
        goto unimplemented;
2080
#endif
2081
    case TARGET_NR_signal:
2082
        goto unimplemented;
2083

    
2084
    case TARGET_NR_acct:
2085
        p = lock_user_string(arg1);
2086
        ret = get_errno(acct(path(p)));
2087
        unlock_user(p, arg1, 0);
2088
        break;
2089
    case TARGET_NR_umount2:
2090
        p = lock_user_string(arg1);
2091
        ret = get_errno(umount2(p, arg2));
2092
        unlock_user(p, arg1, 0);
2093
        break;
2094
#ifdef TARGET_NR_lock
2095
    case TARGET_NR_lock:
2096
        goto unimplemented;
2097
#endif
2098
    case TARGET_NR_ioctl:
2099
        ret = do_ioctl(arg1, arg2, arg3);
2100
        break;
2101
    case TARGET_NR_fcntl:
2102
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
2103
        break;
2104
#ifdef TARGET_NR_mpx
2105
    case TARGET_NR_mpx:
2106
        goto unimplemented;
2107
#endif
2108
    case TARGET_NR_setpgid:
2109
        ret = get_errno(setpgid(arg1, arg2));
2110
        break;
2111
#ifdef TARGET_NR_ulimit
2112
    case TARGET_NR_ulimit:
2113
        goto unimplemented;
2114
#endif
2115
#ifdef TARGET_NR_oldolduname
2116
    case TARGET_NR_oldolduname:
2117
        goto unimplemented;
2118
#endif
2119
    case TARGET_NR_umask:
2120
        ret = get_errno(umask(arg1));
2121
        break;
2122
    case TARGET_NR_chroot:
2123
        p = lock_user_string(arg1);
2124
        ret = get_errno(chroot(p));
2125
        unlock_user(p, arg1, 0);
2126
        break;
2127
    case TARGET_NR_ustat:
2128
        goto unimplemented;
2129
    case TARGET_NR_dup2:
2130
        ret = get_errno(dup2(arg1, arg2));
2131
        break;
2132
    case TARGET_NR_getppid:
2133
        ret = get_errno(getppid());
2134
        break;
2135
    case TARGET_NR_getpgrp:
2136
        ret = get_errno(getpgrp());
2137
        break;
2138
    case TARGET_NR_setsid:
2139
        ret = get_errno(setsid());
2140
        break;
2141
    case TARGET_NR_sigaction:
2142
        {
2143
            struct target_old_sigaction *old_act;
2144
            struct target_sigaction act, oact, *pact;
2145
            if (arg2) {
2146
                lock_user_struct(old_act, arg2, 1);
2147
                act._sa_handler = old_act->_sa_handler;
2148
                target_siginitset(&act.sa_mask, old_act->sa_mask);
2149
                act.sa_flags = old_act->sa_flags;
2150
                act.sa_restorer = old_act->sa_restorer;
2151
                unlock_user_struct(old_act, arg2, 0);
2152
                pact = &act;
2153
            } else {
2154
                pact = NULL;
2155
            }
2156
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2157
            if (!is_error(ret) && arg3) {
2158
                lock_user_struct(old_act, arg3, 0);
2159
                old_act->_sa_handler = oact._sa_handler;
2160
                old_act->sa_mask = oact.sa_mask.sig[0];
2161
                old_act->sa_flags = oact.sa_flags;
2162
                old_act->sa_restorer = oact.sa_restorer;
2163
                unlock_user_struct(old_act, arg3, 1);
2164
            }
2165
        }
2166
        break;
2167
    case TARGET_NR_rt_sigaction:
2168
        {
2169
            struct target_sigaction *act;
2170
            struct target_sigaction *oact;
2171

    
2172
            if (arg2)
2173
                lock_user_struct(act, arg2, 1);
2174
            else
2175
                act = NULL;
2176
            if (arg3)
2177
                lock_user_struct(oact, arg3, 0);
2178
            else
2179
                oact = NULL;
2180
            ret = get_errno(do_sigaction(arg1, act, oact));
2181
            if (arg2)
2182
                unlock_user_struct(act, arg2, 0);
2183
            if (arg3)
2184
                unlock_user_struct(oact, arg3, 1);
2185
        }
2186
        break;
2187
    case TARGET_NR_sgetmask:
2188
        {
2189
            sigset_t cur_set;
2190
            target_ulong target_set;
2191
            sigprocmask(0, NULL, &cur_set);
2192
            host_to_target_old_sigset(&target_set, &cur_set);
2193
            ret = target_set;
2194
        }
2195
        break;
2196
    case TARGET_NR_ssetmask:
2197
        {
2198
            sigset_t set, oset, cur_set;
2199
            target_ulong target_set = arg1;
2200
            sigprocmask(0, NULL, &cur_set);
2201
            target_to_host_old_sigset(&set, &target_set);
2202
            sigorset(&set, &set, &cur_set);
2203
            sigprocmask(SIG_SETMASK, &set, &oset);
2204
            host_to_target_old_sigset(&target_set, &oset);
2205
            ret = target_set;
2206
        }
2207
        break;
2208
    case TARGET_NR_sigprocmask:
2209
        {
2210
            int how = arg1;
2211
            sigset_t set, oldset, *set_ptr;
2212
            
2213
            if (arg2) {
2214
                switch(how) {
2215
                case TARGET_SIG_BLOCK:
2216
                    how = SIG_BLOCK;
2217
                    break;
2218
                case TARGET_SIG_UNBLOCK:
2219
                    how = SIG_UNBLOCK;
2220
                    break;
2221
                case TARGET_SIG_SETMASK:
2222
                    how = SIG_SETMASK;
2223
                    break;
2224
                default:
2225
                    ret = -EINVAL;
2226
                    goto fail;
2227
                }
2228
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2229
                target_to_host_old_sigset(&set, p);
2230
                unlock_user(p, arg2, 0);
2231
                set_ptr = &set;
2232
            } else {
2233
                how = 0;
2234
                set_ptr = NULL;
2235
            }
2236
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2237
            if (!is_error(ret) && arg3) {
2238
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2239
                host_to_target_old_sigset(p, &oldset);
2240
                unlock_user(p, arg3, sizeof(target_sigset_t));
2241
            }
2242
        }
2243
        break;
2244
    case TARGET_NR_rt_sigprocmask:
2245
        {
2246
            int how = arg1;
2247
            sigset_t set, oldset, *set_ptr;
2248
            
2249
            if (arg2) {
2250
                switch(how) {
2251
                case TARGET_SIG_BLOCK:
2252
                    how = SIG_BLOCK;
2253
                    break;
2254
                case TARGET_SIG_UNBLOCK:
2255
                    how = SIG_UNBLOCK;
2256
                    break;
2257
                case TARGET_SIG_SETMASK:
2258
                    how = SIG_SETMASK;
2259
                    break;
2260
                default:
2261
                    ret = -EINVAL;
2262
                    goto fail;
2263
                }
2264
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2265
                target_to_host_sigset(&set, p);
2266
                unlock_user(p, arg2, 0);
2267
                set_ptr = &set;
2268
            } else {
2269
                how = 0;
2270
                set_ptr = NULL;
2271
            }
2272
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2273
            if (!is_error(ret) && arg3) {
2274
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2275
                host_to_target_sigset(p, &oldset);
2276
                unlock_user(p, arg3, sizeof(target_sigset_t));
2277
            }
2278
        }
2279
        break;
2280
    case TARGET_NR_sigpending:
2281
        {
2282
            sigset_t set;
2283
            ret = get_errno(sigpending(&set));
2284
            if (!is_error(ret)) {
2285
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2286
                host_to_target_old_sigset(p, &set);
2287
                unlock_user(p, arg1, sizeof(target_sigset_t));
2288
            }
2289
        }
2290
        break;
2291
    case TARGET_NR_rt_sigpending:
2292
        {
2293
            sigset_t set;
2294
            ret = get_errno(sigpending(&set));
2295
            if (!is_error(ret)) {
2296
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2297
                host_to_target_sigset(p, &set);
2298
                unlock_user(p, arg1, sizeof(target_sigset_t));
2299
            }
2300
        }
2301
        break;
2302
    case TARGET_NR_sigsuspend:
2303
        {
2304
            sigset_t set;
2305
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2306
            target_to_host_old_sigset(&set, p);
2307
            unlock_user(p, arg1, 0);
2308
            ret = get_errno(sigsuspend(&set));
2309
        }
2310
        break;
2311
    case TARGET_NR_rt_sigsuspend:
2312
        {
2313
            sigset_t set;
2314
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2315
            target_to_host_sigset(&set, p);
2316
            unlock_user(p, arg1, 0);
2317
            ret = get_errno(sigsuspend(&set));
2318
        }
2319
        break;
2320
    case TARGET_NR_rt_sigtimedwait:
2321
        {
2322
            sigset_t set;
2323
            struct timespec uts, *puts;
2324
            siginfo_t uinfo;
2325
            
2326
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2327
            target_to_host_sigset(&set, p);
2328
            unlock_user(p, arg1, 0);
2329
            if (arg3) {
2330
                puts = &uts;
2331
                target_to_host_timespec(puts, arg3);
2332
            } else {
2333
                puts = NULL;
2334
            }
2335
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2336
            if (!is_error(ret) && arg2) {
2337
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
2338
                host_to_target_siginfo(p, &uinfo);
2339
                unlock_user(p, arg2, sizeof(target_sigset_t));
2340
            }
2341
        }
2342
        break;
2343
    case TARGET_NR_rt_sigqueueinfo:
2344
        {
2345
            siginfo_t uinfo;
2346
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
2347
            target_to_host_siginfo(&uinfo, p);
2348
            unlock_user(p, arg1, 0);
2349
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2350
        }
2351
        break;
2352
    case TARGET_NR_sigreturn:
2353
        /* NOTE: ret is eax, so not transcoding must be done */
2354
        ret = do_sigreturn(cpu_env);
2355
        break;
2356
    case TARGET_NR_rt_sigreturn:
2357
        /* NOTE: ret is eax, so not transcoding must be done */
2358
        ret = do_rt_sigreturn(cpu_env);
2359
        break;
2360
    case TARGET_NR_sethostname:
2361
        p = lock_user_string(arg1);
2362
        ret = get_errno(sethostname(p, arg2));
2363
        unlock_user(p, arg1, 0);
2364
        break;
2365
    case TARGET_NR_setrlimit:
2366
        {
2367
            /* XXX: convert resource ? */
2368
            int resource = arg1;
2369
            struct target_rlimit *target_rlim;
2370
            struct rlimit rlim;
2371
            lock_user_struct(target_rlim, arg2, 1);
2372
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2373
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
2374
            unlock_user_struct(target_rlim, arg2, 0);
2375
            ret = get_errno(setrlimit(resource, &rlim));
2376
        }
2377
        break;
2378
    case TARGET_NR_getrlimit:
2379
        {
2380
            /* XXX: convert resource ? */
2381
            int resource = arg1;
2382
            struct target_rlimit *target_rlim;
2383
            struct rlimit rlim;
2384
            
2385
            ret = get_errno(getrlimit(resource, &rlim));
2386
            if (!is_error(ret)) {
2387
                lock_user_struct(target_rlim, arg2, 0);
2388
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2389
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
2390
                unlock_user_struct(target_rlim, arg2, 1);
2391
            }
2392
        }
2393
        break;
2394
    case TARGET_NR_getrusage:
2395
        {
2396
            struct rusage rusage;
2397
            ret = get_errno(getrusage(arg1, &rusage));
2398
            if (!is_error(ret)) {
2399
                host_to_target_rusage(arg2, &rusage);
2400
            }
2401
        }
2402
        break;
2403
    case TARGET_NR_gettimeofday:
2404
        {
2405
            struct timeval tv;
2406
            ret = get_errno(gettimeofday(&tv, NULL));
2407
            if (!is_error(ret)) {
2408
                host_to_target_timeval(arg1, &tv);
2409
            }
2410
        }
2411
        break;
2412
    case TARGET_NR_settimeofday:
2413
        {
2414
            struct timeval tv;
2415
            target_to_host_timeval(&tv, arg1);
2416
            ret = get_errno(settimeofday(&tv, NULL));
2417
        }
2418
        break;
2419
#ifdef TARGET_NR_select
2420
    case TARGET_NR_select:
2421
        {
2422
            struct target_sel_arg_struct *sel;
2423
            target_ulong inp, outp, exp, tvp;
2424
            long nsel;
2425

    
2426
            lock_user_struct(sel, arg1, 1);
2427
            nsel = tswapl(sel->n);
2428
            inp = tswapl(sel->inp);
2429
            outp = tswapl(sel->outp);
2430
            exp = tswapl(sel->exp);
2431
            tvp = tswapl(sel->tvp);
2432
            unlock_user_struct(sel, arg1, 0);
2433
            ret = do_select(nsel, inp, outp, exp, tvp);
2434
        }
2435
        break;
2436
#endif
2437
    case TARGET_NR_symlink:
2438
        {
2439
            void *p2;
2440
            p = lock_user_string(arg1);
2441
            p2 = lock_user_string(arg2);
2442
            ret = get_errno(symlink(p, p2));
2443
            unlock_user(p2, arg2, 0);
2444
            unlock_user(p, arg1, 0);
2445
        }
2446
        break;
2447
#ifdef TARGET_NR_oldlstat
2448
    case TARGET_NR_oldlstat:
2449
        goto unimplemented;
2450
#endif
2451
    case TARGET_NR_readlink:
2452
        {
2453
            void *p2;
2454
            p = lock_user_string(arg1);
2455
            p2 = lock_user(arg2, arg3, 0);
2456
            ret = get_errno(readlink(path(p), p2, arg3));
2457
            unlock_user(p2, arg2, ret);
2458
            unlock_user(p, arg1, 0);
2459
        }
2460
        break;
2461
    case TARGET_NR_uselib:
2462
        goto unimplemented;
2463
    case TARGET_NR_swapon:
2464
        p = lock_user_string(arg1);
2465
        ret = get_errno(swapon(p, arg2));
2466
        unlock_user(p, arg1, 0);
2467
        break;
2468
    case TARGET_NR_reboot:
2469
        goto unimplemented;
2470
    case TARGET_NR_readdir:
2471
        goto unimplemented;
2472
    case TARGET_NR_mmap:
2473
#if defined(TARGET_I386) || defined(TARGET_ARM)
2474
        {
2475
            target_ulong *v;
2476
            target_ulong v1, v2, v3, v4, v5, v6;
2477
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2478
            v1 = tswapl(v[0]);
2479
            v2 = tswapl(v[1]);
2480
            v3 = tswapl(v[2]);
2481
            v4 = tswapl(v[3]);
2482
            v5 = tswapl(v[4]);
2483
            v6 = tswapl(v[5]);
2484
            unlock_user(v, arg1, 0);
2485
            ret = get_errno(target_mmap(v1, v2, v3, 
2486
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
2487
                                        v5, v6));
2488
        }
2489
#else
2490
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2491
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2492
                                    arg5,
2493
                                    arg6));
2494
#endif
2495
        break;
2496
#ifdef TARGET_NR_mmap2
2497
    case TARGET_NR_mmap2:
2498
#if defined(TARGET_SPARC)
2499
#define MMAP_SHIFT 12
2500
#else
2501
#define MMAP_SHIFT TARGET_PAGE_BITS
2502
#endif
2503
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2504
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2505
                                    arg5,
2506
                                    arg6 << MMAP_SHIFT));
2507
        break;
2508
#endif
2509
    case TARGET_NR_munmap:
2510
        ret = get_errno(target_munmap(arg1, arg2));
2511
        break;
2512
    case TARGET_NR_mprotect:
2513
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
2514
        break;
2515
    case TARGET_NR_mremap:
2516
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2517
        break;
2518
        /* ??? msync/mlock/munlock are broken for softmmu.  */
2519
    case TARGET_NR_msync:
2520
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
2521
        break;
2522
    case TARGET_NR_mlock:
2523
        ret = get_errno(mlock(g2h(arg1), arg2));
2524
        break;
2525
    case TARGET_NR_munlock:
2526
        ret = get_errno(munlock(g2h(arg1), arg2));
2527
        break;
2528
    case TARGET_NR_mlockall:
2529
        ret = get_errno(mlockall(arg1));
2530
        break;
2531
    case TARGET_NR_munlockall:
2532
        ret = get_errno(munlockall());
2533
        break;
2534
    case TARGET_NR_truncate:
2535
        p = lock_user_string(arg1);
2536
        ret = get_errno(truncate(p, arg2));
2537
        unlock_user(p, arg1, 0);
2538
        break;
2539
    case TARGET_NR_ftruncate:
2540
        ret = get_errno(ftruncate(arg1, arg2));
2541
        break;
2542
    case TARGET_NR_fchmod:
2543
        ret = get_errno(fchmod(arg1, arg2));
2544
        break;
2545
    case TARGET_NR_getpriority:
2546
        ret = get_errno(getpriority(arg1, arg2));
2547
        break;
2548
    case TARGET_NR_setpriority:
2549
        ret = get_errno(setpriority(arg1, arg2, arg3));
2550
        break;
2551
#ifdef TARGET_NR_profil
2552
    case TARGET_NR_profil:
2553
        goto unimplemented;
2554
#endif
2555
    case TARGET_NR_statfs:
2556
        p = lock_user_string(arg1);
2557
        ret = get_errno(statfs(path(p), &stfs));
2558
        unlock_user(p, arg1, 0);
2559
    convert_statfs:
2560
        if (!is_error(ret)) {
2561
            struct target_statfs *target_stfs;
2562
            
2563
            lock_user_struct(target_stfs, arg2, 0);
2564
            /* ??? put_user is probably wrong.  */
2565
            put_user(stfs.f_type, &target_stfs->f_type);
2566
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2567
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2568
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2569
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2570
            put_user(stfs.f_files, &target_stfs->f_files);
2571
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2572
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2573
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2574
            unlock_user_struct(target_stfs, arg2, 1);
2575
        }
2576
        break;
2577
    case TARGET_NR_fstatfs:
2578
        ret = get_errno(fstatfs(arg1, &stfs));
2579
        goto convert_statfs;
2580
#ifdef TARGET_NR_statfs64
2581
    case TARGET_NR_statfs64:
2582
        p = lock_user_string(arg1);
2583
        ret = get_errno(statfs(path(p), &stfs));
2584
        unlock_user(p, arg1, 0);
2585
    convert_statfs64:
2586
        if (!is_error(ret)) {
2587
            struct target_statfs64 *target_stfs;
2588
            
2589
            lock_user_struct(target_stfs, arg3, 0);
2590
            /* ??? put_user is probably wrong.  */
2591
            put_user(stfs.f_type, &target_stfs->f_type);
2592
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2593
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2594
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2595
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2596
            put_user(stfs.f_files, &target_stfs->f_files);
2597
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2598
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2599
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2600
            unlock_user_struct(target_stfs, arg3, 0);
2601
        }
2602
        break;
2603
    case TARGET_NR_fstatfs64:
2604
        ret = get_errno(fstatfs(arg1, &stfs));
2605
        goto convert_statfs64;
2606
#endif
2607
#ifdef TARGET_NR_ioperm
2608
    case TARGET_NR_ioperm:
2609
        goto unimplemented;
2610
#endif
2611
    case TARGET_NR_socketcall:
2612
        ret = do_socketcall(arg1, arg2);
2613
        break;
2614
    case TARGET_NR_syslog:
2615
        goto unimplemented;
2616
    case TARGET_NR_setitimer:
2617
        {
2618
            struct itimerval value, ovalue, *pvalue;
2619

    
2620
            if (arg2) {
2621
                pvalue = &value;
2622
                target_to_host_timeval(&pvalue->it_interval, 
2623
                                       arg2);
2624
                target_to_host_timeval(&pvalue->it_value, 
2625
                                       arg2 + sizeof(struct target_timeval));
2626
            } else {
2627
                pvalue = NULL;
2628
            }
2629
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2630
            if (!is_error(ret) && arg3) {
2631
                host_to_target_timeval(arg3,
2632
                                       &ovalue.it_interval);
2633
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
2634
                                       &ovalue.it_value);
2635
            }
2636
        }
2637
        break;
2638
    case TARGET_NR_getitimer:
2639
        {
2640
            struct itimerval value;
2641
            
2642
            ret = get_errno(getitimer(arg1, &value));
2643
            if (!is_error(ret) && arg2) {
2644
                host_to_target_timeval(arg2,
2645
                                       &value.it_interval);
2646
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
2647
                                       &value.it_value);
2648
            }
2649
        }
2650
        break;
2651
    case TARGET_NR_stat:
2652
        p = lock_user_string(arg1);
2653
        ret = get_errno(stat(path(p), &st));
2654
        unlock_user(p, arg1, 0);
2655
        goto do_stat;
2656
    case TARGET_NR_lstat:
2657
        p = lock_user_string(arg1);
2658
        ret = get_errno(lstat(path(p), &st));
2659
        unlock_user(p, arg1, 0);
2660
        goto do_stat;
2661
    case TARGET_NR_fstat:
2662
        {
2663
            ret = get_errno(fstat(arg1, &st));
2664
        do_stat:
2665
            if (!is_error(ret)) {
2666
                struct target_stat *target_st;
2667
                
2668
                lock_user_struct(target_st, arg2, 0);
2669
                target_st->st_dev = tswap16(st.st_dev);
2670
                target_st->st_ino = tswapl(st.st_ino);
2671
#if defined(TARGET_PPC)
2672
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2673
                target_st->st_uid = tswap32(st.st_uid);
2674
                target_st->st_gid = tswap32(st.st_gid);
2675
#else
2676
                target_st->st_mode = tswap16(st.st_mode);
2677
                target_st->st_uid = tswap16(st.st_uid);
2678
                target_st->st_gid = tswap16(st.st_gid);
2679
#endif
2680
                target_st->st_nlink = tswap16(st.st_nlink);
2681
                target_st->st_rdev = tswap16(st.st_rdev);
2682
                target_st->st_size = tswapl(st.st_size);
2683
                target_st->st_blksize = tswapl(st.st_blksize);
2684
                target_st->st_blocks = tswapl(st.st_blocks);
2685
                target_st->target_st_atime = tswapl(st.st_atime);
2686
                target_st->target_st_mtime = tswapl(st.st_mtime);
2687
                target_st->target_st_ctime = tswapl(st.st_ctime);
2688
                unlock_user_struct(target_st, arg2, 1);
2689
            }
2690
        }
2691
        break;
2692
#ifdef TARGET_NR_olduname
2693
    case TARGET_NR_olduname:
2694
        goto unimplemented;
2695
#endif
2696
#ifdef TARGET_NR_iopl
2697
    case TARGET_NR_iopl:
2698
        goto unimplemented;
2699
#endif
2700
    case TARGET_NR_vhangup:
2701
        ret = get_errno(vhangup());
2702
        break;
2703
#ifdef TARGET_NR_idle
2704
    case TARGET_NR_idle:
2705
        goto unimplemented;
2706
#endif
2707
#ifdef TARGET_NR_syscall
2708
    case TARGET_NR_syscall:
2709
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
2710
            break;
2711
#endif
2712
    case TARGET_NR_wait4:
2713
        {
2714
            int status;
2715
            target_long status_ptr = arg2;
2716
            struct rusage rusage, *rusage_ptr;
2717
            target_ulong target_rusage = arg4;
2718
            if (target_rusage)
2719
                rusage_ptr = &rusage;
2720
            else
2721
                rusage_ptr = NULL;
2722
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2723
            if (!is_error(ret)) {
2724
                if (status_ptr)
2725
                    tputl(status_ptr, status);
2726
                if (target_rusage) {
2727
                    host_to_target_rusage(target_rusage, &rusage);
2728
                }
2729
            }
2730
        }
2731
        break;
2732
    case TARGET_NR_swapoff:
2733
        p = lock_user_string(arg1);
2734
        ret = get_errno(swapoff(p));
2735
        unlock_user(p, arg1, 0);
2736
        break;
2737
    case TARGET_NR_sysinfo:
2738
        {
2739
            struct target_sysinfo *target_value;
2740
            struct sysinfo value;
2741
            ret = get_errno(sysinfo(&value));
2742
            if (!is_error(ret) && arg1)
2743
            {
2744
                /* ??? __put_user is probably wrong.  */
2745
                lock_user_struct(target_value, arg1, 0);
2746
                __put_user(value.uptime, &target_value->uptime);
2747
                __put_user(value.loads[0], &target_value->loads[0]);
2748
                __put_user(value.loads[1], &target_value->loads[1]);
2749
                __put_user(value.loads[2], &target_value->loads[2]);
2750
                __put_user(value.totalram, &target_value->totalram);
2751
                __put_user(value.freeram, &target_value->freeram);
2752
                __put_user(value.sharedram, &target_value->sharedram);
2753
                __put_user(value.bufferram, &target_value->bufferram);
2754
                __put_user(value.totalswap, &target_value->totalswap);
2755
                __put_user(value.freeswap, &target_value->freeswap);
2756
                __put_user(value.procs, &target_value->procs);
2757
                __put_user(value.totalhigh, &target_value->totalhigh);
2758
                __put_user(value.freehigh, &target_value->freehigh);
2759
                __put_user(value.mem_unit, &target_value->mem_unit);
2760
                unlock_user_struct(target_value, arg1, 1);
2761
            }
2762
        }
2763
        break;
2764
    case TARGET_NR_ipc:
2765
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2766
        break;
2767
    case TARGET_NR_fsync:
2768
        ret = get_errno(fsync(arg1));
2769
        break;
2770
    case TARGET_NR_clone:
2771
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
2772
        break;
2773
#ifdef __NR_exit_group
2774
        /* new thread calls */
2775
    case TARGET_NR_exit_group:
2776
        gdb_exit(cpu_env, arg1);
2777
        ret = get_errno(exit_group(arg1));
2778
        break;
2779
#endif
2780
    case TARGET_NR_setdomainname:
2781
        p = lock_user_string(arg1);
2782
        ret = get_errno(setdomainname(p, arg2));
2783
        unlock_user(p, arg1, 0);
2784
        break;
2785
    case TARGET_NR_uname:
2786
        /* no need to transcode because we use the linux syscall */
2787
        {
2788
            struct new_utsname * buf;
2789
    
2790
            lock_user_struct(buf, arg1, 0);
2791
            ret = get_errno(sys_uname(buf));
2792
            if (!is_error(ret)) {
2793
                /* Overrite the native machine name with whatever is being
2794
                   emulated. */
2795
                strcpy (buf->machine, UNAME_MACHINE);
2796
                /* Allow the user to override the reported release.  */
2797
                if (qemu_uname_release && *qemu_uname_release)
2798
                  strcpy (buf->release, qemu_uname_release);
2799
            }
2800
            unlock_user_struct(buf, arg1, 1);
2801
        }
2802
        break;
2803
#ifdef TARGET_I386
2804
    case TARGET_NR_modify_ldt:
2805
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
2806
        break;
2807
    case TARGET_NR_vm86old:
2808
        goto unimplemented;
2809
    case TARGET_NR_vm86:
2810
        ret = do_vm86(cpu_env, arg1, arg2);
2811
        break;
2812
#endif
2813
    case TARGET_NR_adjtimex:
2814
        goto unimplemented;
2815
    case TARGET_NR_create_module:
2816
    case TARGET_NR_init_module:
2817
    case TARGET_NR_delete_module:
2818
    case TARGET_NR_get_kernel_syms:
2819
        goto unimplemented;
2820
    case TARGET_NR_quotactl:
2821
        goto unimplemented;
2822
    case TARGET_NR_getpgid:
2823
        ret = get_errno(getpgid(arg1));
2824
        break;
2825
    case TARGET_NR_fchdir:
2826
        ret = get_errno(fchdir(arg1));
2827
        break;
2828
    case TARGET_NR_bdflush:
2829
        goto unimplemented;
2830
    case TARGET_NR_sysfs:
2831
        goto unimplemented;
2832
    case TARGET_NR_personality:
2833
        ret = get_errno(personality(arg1));
2834
        break;
2835
    case TARGET_NR_afs_syscall:
2836
        goto unimplemented;
2837
    case TARGET_NR__llseek:
2838
        {
2839
#if defined (__x86_64__)
2840
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2841
            tput64(arg4, ret);
2842
#else
2843
            int64_t res;
2844
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2845
            tput64(arg4, res);
2846
#endif
2847
        }
2848
        break;
2849
    case TARGET_NR_getdents:
2850
#if TARGET_LONG_SIZE != 4
2851
        goto unimplemented;
2852
#warning not supported
2853
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2854
        {
2855
            struct target_dirent *target_dirp;
2856
            struct dirent *dirp;
2857
            long count = arg3;
2858

    
2859
            dirp = malloc(count);
2860
            if (!dirp)
2861
                return -ENOMEM;
2862
            
2863
            ret = get_errno(sys_getdents(arg1, dirp, count));
2864
            if (!is_error(ret)) {
2865
                struct dirent *de;
2866
                struct target_dirent *tde;
2867
                int len = ret;
2868
                int reclen, treclen;
2869
                int count1, tnamelen;
2870

    
2871
                count1 = 0;
2872
                de = dirp;
2873
                target_dirp = lock_user(arg2, count, 0);
2874
                tde = target_dirp;
2875
                while (len > 0) {
2876
                    reclen = de->d_reclen;
2877
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2878
                    tde->d_reclen = tswap16(treclen);
2879
                    tde->d_ino = tswapl(de->d_ino);
2880
                    tde->d_off = tswapl(de->d_off);
2881
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
2882
                    if (tnamelen > 256)
2883
                        tnamelen = 256;
2884
                    /* XXX: may not be correct */
2885
                    strncpy(tde->d_name, de->d_name, tnamelen);
2886
                    de = (struct dirent *)((char *)de + reclen);
2887
                    len -= reclen;
2888
                    tde = (struct dirent *)((char *)tde + treclen);
2889
                    count1 += treclen;
2890
                }
2891
                ret = count1;
2892
            }
2893
            unlock_user(target_dirp, arg2, ret);
2894
            free(dirp);
2895
        }
2896
#else
2897
        {
2898
            struct dirent *dirp;
2899
            long count = arg3;
2900

    
2901
            dirp = lock_user(arg2, count, 0);
2902
            ret = get_errno(sys_getdents(arg1, dirp, count));
2903
            if (!is_error(ret)) {
2904
                struct dirent *de;
2905
                int len = ret;
2906
                int reclen;
2907
                de = dirp;
2908
                while (len > 0) {
2909
                    reclen = de->d_reclen;
2910
                    if (reclen > len)
2911
                        break;
2912
                    de->d_reclen = tswap16(reclen);
2913
                    tswapls(&de->d_ino);
2914
                    tswapls(&de->d_off);
2915
                    de = (struct dirent *)((char *)de + reclen);
2916
                    len -= reclen;
2917
                }
2918
            }
2919
            unlock_user(dirp, arg2, ret);
2920
        }
2921
#endif
2922
        break;
2923
#ifdef TARGET_NR_getdents64
2924
    case TARGET_NR_getdents64:
2925
        {
2926
            struct dirent64 *dirp;
2927
            long count = arg3;
2928
            dirp = lock_user(arg2, count, 0);
2929
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2930
            if (!is_error(ret)) {
2931
                struct dirent64 *de;
2932
                int len = ret;
2933
                int reclen;
2934
                de = dirp;
2935
                while (len > 0) {
2936
                    reclen = de->d_reclen;
2937
                    if (reclen > len)
2938
                        break;
2939
                    de->d_reclen = tswap16(reclen);
2940
                    tswap64s(&de->d_ino);
2941
                    tswap64s(&de->d_off);
2942
                    de = (struct dirent64 *)((char *)de + reclen);
2943
                    len -= reclen;
2944
                }
2945
            }
2946
            unlock_user(dirp, arg2, ret);
2947
        }
2948
        break;
2949
#endif /* TARGET_NR_getdents64 */
2950
    case TARGET_NR__newselect:
2951
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
2952
        break;
2953
    case TARGET_NR_poll:
2954
        {
2955
            struct target_pollfd *target_pfd;
2956
            unsigned int nfds = arg2;
2957
            int timeout = arg3;
2958
            struct pollfd *pfd;
2959
            unsigned int i;
2960

    
2961
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
2962
            pfd = alloca(sizeof(struct pollfd) * nfds);
2963
            for(i = 0; i < nfds; i++) {
2964
                pfd[i].fd = tswap32(target_pfd[i].fd);
2965
                pfd[i].events = tswap16(target_pfd[i].events);
2966
            }
2967
            ret = get_errno(poll(pfd, nfds, timeout));
2968
            if (!is_error(ret)) {
2969
                for(i = 0; i < nfds; i++) {
2970
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2971
                }
2972
                ret += nfds * (sizeof(struct target_pollfd)
2973
                               - sizeof(struct pollfd));
2974
            }
2975
            unlock_user(target_pfd, arg1, ret);
2976
        }
2977
        break;
2978
    case TARGET_NR_flock:
2979
        /* NOTE: the flock constant seems to be the same for every
2980
           Linux platform */
2981
        ret = get_errno(flock(arg1, arg2));
2982
        break;
2983
    case TARGET_NR_readv:
2984
        {
2985
            int count = arg3;
2986
            struct iovec *vec;
2987

    
2988
            vec = alloca(count * sizeof(struct iovec));
2989
            lock_iovec(vec, arg2, count, 0);
2990
            ret = get_errno(readv(arg1, vec, count));
2991
            unlock_iovec(vec, arg2, count, 1);
2992
        }
2993
        break;
2994
    case TARGET_NR_writev:
2995
        {
2996
            int count = arg3;
2997
            struct iovec *vec;
2998

    
2999
            vec = alloca(count * sizeof(struct iovec));
3000
            lock_iovec(vec, arg2, count, 1);
3001
            ret = get_errno(writev(arg1, vec, count));
3002
            unlock_iovec(vec, arg2, count, 0);
3003
        }
3004
        break;
3005
    case TARGET_NR_getsid:
3006
        ret = get_errno(getsid(arg1));
3007
        break;
3008
    case TARGET_NR_fdatasync:
3009
        ret = get_errno(fdatasync(arg1));
3010
        break;
3011
    case TARGET_NR__sysctl:
3012
        /* We don't implement this, but ENODIR is always a safe
3013
           return value. */
3014
        return -ENOTDIR;
3015
    case TARGET_NR_sched_setparam:
3016
        {
3017
            struct sched_param *target_schp;
3018
            struct sched_param schp;
3019

    
3020
            lock_user_struct(target_schp, arg2, 1);
3021
            schp.sched_priority = tswap32(target_schp->sched_priority);
3022
            unlock_user_struct(target_schp, arg2, 0);
3023
            ret = get_errno(sched_setparam(arg1, &schp));
3024
        }
3025
        break;
3026
    case TARGET_NR_sched_getparam:
3027
        {
3028
            struct sched_param *target_schp;
3029
            struct sched_param schp;
3030
            ret = get_errno(sched_getparam(arg1, &schp));
3031
            if (!is_error(ret)) {
3032
                lock_user_struct(target_schp, arg2, 0);
3033
                target_schp->sched_priority = tswap32(schp.sched_priority);
3034
                unlock_user_struct(target_schp, arg2, 1);
3035
            }
3036
        }
3037
        break;
3038
    case TARGET_NR_sched_setscheduler:
3039
        {
3040
            struct sched_param *target_schp;
3041
            struct sched_param schp;
3042
            lock_user_struct(target_schp, arg3, 1);
3043
            schp.sched_priority = tswap32(target_schp->sched_priority);
3044
            unlock_user_struct(target_schp, arg3, 0);
3045
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3046
        }
3047
        break;
3048
    case TARGET_NR_sched_getscheduler:
3049
        ret = get_errno(sched_getscheduler(arg1));
3050
        break;
3051
    case TARGET_NR_sched_yield:
3052
        ret = get_errno(sched_yield());
3053
        break;
3054
    case TARGET_NR_sched_get_priority_max:
3055
        ret = get_errno(sched_get_priority_max(arg1));
3056
        break;
3057
    case TARGET_NR_sched_get_priority_min:
3058
        ret = get_errno(sched_get_priority_min(arg1));
3059
        break;
3060
    case TARGET_NR_sched_rr_get_interval:
3061
        {
3062
            struct timespec ts;
3063
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
3064
            if (!is_error(ret)) {
3065
                host_to_target_timespec(arg2, &ts);
3066
            }
3067
        }
3068
        break;
3069
    case TARGET_NR_nanosleep:
3070
        {
3071
            struct timespec req, rem;
3072
            target_to_host_timespec(&req, arg1);
3073
            ret = get_errno(nanosleep(&req, &rem));
3074
            if (is_error(ret) && arg2) {
3075
                host_to_target_timespec(arg2, &rem);
3076
            }
3077
        }
3078
        break;
3079
    case TARGET_NR_query_module:
3080
        goto unimplemented;
3081
    case TARGET_NR_nfsservctl:
3082
        goto unimplemented;
3083
    case TARGET_NR_prctl:
3084
        goto unimplemented;
3085
#ifdef TARGET_NR_pread
3086
    case TARGET_NR_pread:
3087
        page_unprotect_range(arg2, arg3);
3088
        p = lock_user(arg2, arg3, 0);
3089
        ret = get_errno(pread(arg1, p, arg3, arg4));
3090
        unlock_user(p, arg2, ret);
3091
        break;
3092
    case TARGET_NR_pwrite:
3093
        p = lock_user(arg2, arg3, 1);
3094
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
3095
        unlock_user(p, arg2, 0);
3096
        break;
3097
#endif
3098
    case TARGET_NR_getcwd:
3099
        p = lock_user(arg1, arg2, 0);
3100
        ret = get_errno(sys_getcwd1(p, arg2));
3101
        unlock_user(p, arg1, ret);
3102
        break;
3103
    case TARGET_NR_capget:
3104
        goto unimplemented;
3105
    case TARGET_NR_capset:
3106
        goto unimplemented;
3107
    case TARGET_NR_sigaltstack:
3108
        goto unimplemented;
3109
    case TARGET_NR_sendfile:
3110
        goto unimplemented;
3111
#ifdef TARGET_NR_getpmsg
3112
    case TARGET_NR_getpmsg:
3113
        goto unimplemented;
3114
#endif
3115
#ifdef TARGET_NR_putpmsg
3116
    case TARGET_NR_putpmsg:
3117
        goto unimplemented;
3118
#endif
3119
#ifdef TARGET_NR_vfork
3120
    case TARGET_NR_vfork:
3121
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3122
        break;
3123
#endif
3124
#ifdef TARGET_NR_ugetrlimit
3125
    case TARGET_NR_ugetrlimit:
3126
    {
3127
        struct rlimit rlim;
3128
        ret = get_errno(getrlimit(arg1, &rlim));
3129
        if (!is_error(ret)) {
3130
            struct target_rlimit *target_rlim;
3131
            lock_user_struct(target_rlim, arg2, 0);
3132
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3133
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
3134
            unlock_user_struct(target_rlim, arg2, 1);
3135
        }
3136
        break;
3137
    }
3138
#endif
3139
#ifdef TARGET_NR_truncate64
3140
    case TARGET_NR_truncate64:
3141
        p = lock_user_string(arg1);
3142
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3143
        unlock_user(p, arg1, 0);
3144
        break;
3145
#endif
3146
#ifdef TARGET_NR_ftruncate64
3147
    case TARGET_NR_ftruncate64:
3148
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3149
        break;
3150
#endif
3151
#ifdef TARGET_NR_stat64
3152
    case TARGET_NR_stat64:
3153
        p = lock_user_string(arg1);
3154
        ret = get_errno(stat(path(p), &st));
3155
        unlock_user(p, arg1, 0);
3156
        goto do_stat64;
3157
#endif
3158
#ifdef TARGET_NR_lstat64
3159
    case TARGET_NR_lstat64:
3160
        p = lock_user_string(arg1);
3161
        ret = get_errno(lstat(path(p), &st));
3162
        unlock_user(p, arg1, 0);
3163
        goto do_stat64;
3164
#endif
3165
#ifdef TARGET_NR_fstat64
3166
    case TARGET_NR_fstat64:
3167
        {
3168
            ret = get_errno(fstat(arg1, &st));
3169
        do_stat64:
3170
            if (!is_error(ret)) {
3171
#ifdef TARGET_ARM
3172
                if (((CPUARMState *)cpu_env)->eabi) {
3173
                    struct target_eabi_stat64 *target_st;
3174
                    lock_user_struct(target_st, arg2, 1);
3175
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
3176
                    /* put_user is probably wrong.  */
3177
                    put_user(st.st_dev, &target_st->st_dev);
3178
                    put_user(st.st_ino, &target_st->st_ino);
3179
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3180
                    put_user(st.st_ino, &target_st->__st_ino);
3181
#endif
3182
                    put_user(st.st_mode, &target_st->st_mode);
3183
                    put_user(st.st_nlink, &target_st->st_nlink);
3184
                    put_user(st.st_uid, &target_st->st_uid);
3185
                    put_user(st.st_gid, &target_st->st_gid);
3186
                    put_user(st.st_rdev, &target_st->st_rdev);
3187
                    /* XXX: better use of kernel struct */
3188
                    put_user(st.st_size, &target_st->st_size);
3189
                    put_user(st.st_blksize, &target_st->st_blksize);
3190
                    put_user(st.st_blocks, &target_st->st_blocks);
3191
                    put_user(st.st_atime, &target_st->target_st_atime);
3192
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3193
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3194
                    unlock_user_struct(target_st, arg2, 0);
3195
                } else
3196
#endif
3197
                {
3198
                    struct target_stat64 *target_st;
3199
                    lock_user_struct(target_st, arg2, 1);
3200
                    memset(target_st, 0, sizeof(struct target_stat64));
3201
                    /* ??? put_user is probably wrong.  */
3202
                    put_user(st.st_dev, &target_st->st_dev);
3203
                    put_user(st.st_ino, &target_st->st_ino);
3204
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3205
                    put_user(st.st_ino, &target_st->__st_ino);
3206
#endif
3207
                    put_user(st.st_mode, &target_st->st_mode);
3208
                    put_user(st.st_nlink, &target_st->st_nlink);
3209
                    put_user(st.st_uid, &target_st->st_uid);
3210
                    put_user(st.st_gid, &target_st->st_gid);
3211
                    put_user(st.st_rdev, &target_st->st_rdev);
3212
                    /* XXX: better use of kernel struct */
3213
                    put_user(st.st_size, &target_st->st_size);
3214
                    put_user(st.st_blksize, &target_st->st_blksize);
3215
                    put_user(st.st_blocks, &target_st->st_blocks);
3216
                    put_user(st.st_atime, &target_st->target_st_atime);
3217
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3218
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3219
                    unlock_user_struct(target_st, arg2, 0);
3220
                }
3221
            }
3222
        }
3223
        break;
3224
#endif
3225
#ifdef USE_UID16
3226
    case TARGET_NR_lchown:
3227
        p = lock_user_string(arg1);
3228
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3229
        unlock_user(p, arg1, 0);
3230
        break;
3231
    case TARGET_NR_getuid:
3232
        ret = get_errno(high2lowuid(getuid()));
3233
        break;
3234
    case TARGET_NR_getgid:
3235
        ret = get_errno(high2lowgid(getgid()));
3236
        break;
3237
    case TARGET_NR_geteuid:
3238
        ret = get_errno(high2lowuid(geteuid()));
3239
        break;
3240
    case TARGET_NR_getegid:
3241
        ret = get_errno(high2lowgid(getegid()));
3242
        break;
3243
    case TARGET_NR_setreuid:
3244
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3245
        break;
3246
    case TARGET_NR_setregid:
3247
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3248
        break;
3249
    case TARGET_NR_getgroups:
3250
        {
3251
            int gidsetsize = arg1;
3252
            uint16_t *target_grouplist;
3253
            gid_t *grouplist;
3254
            int i;
3255

    
3256
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3257
            ret = get_errno(getgroups(gidsetsize, grouplist));
3258
            if (!is_error(ret)) {
3259
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3260
                for(i = 0;i < gidsetsize; i++)
3261
                    target_grouplist[i] = tswap16(grouplist[i]);
3262
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
3263
            }
3264
        }
3265
        break;
3266
    case TARGET_NR_setgroups:
3267
        {
3268
            int gidsetsize = arg1;
3269
            uint16_t *target_grouplist;
3270
            gid_t *grouplist;
3271
            int i;
3272

    
3273
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3274
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3275
            for(i = 0;i < gidsetsize; i++)
3276
                grouplist[i] = tswap16(target_grouplist[i]);
3277
            unlock_user(target_grouplist, arg2, 0);
3278
            ret = get_errno(setgroups(gidsetsize, grouplist));
3279
        }
3280
        break;
3281
    case TARGET_NR_fchown:
3282
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3283
        break;
3284
#ifdef TARGET_NR_setresuid
3285
    case TARGET_NR_setresuid:
3286
        ret = get_errno(setresuid(low2highuid(arg1), 
3287
                                  low2highuid(arg2), 
3288
                                  low2highuid(arg3)));
3289
        break;
3290
#endif
3291
#ifdef TARGET_NR_getresuid
3292
    case TARGET_NR_getresuid:
3293
        {
3294
            uid_t ruid, euid, suid;
3295
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3296
            if (!is_error(ret)) {
3297
                tput16(arg1, tswap16(high2lowuid(ruid)));
3298
                tput16(arg2, tswap16(high2lowuid(euid)));
3299
                tput16(arg3, tswap16(high2lowuid(suid)));
3300
            }
3301
        }
3302
        break;
3303
#endif
3304
#ifdef TARGET_NR_getresgid
3305
    case TARGET_NR_setresgid:
3306
        ret = get_errno(setresgid(low2highgid(arg1), 
3307
                                  low2highgid(arg2), 
3308
                                  low2highgid(arg3)));
3309
        break;
3310
#endif
3311
#ifdef TARGET_NR_getresgid
3312
    case TARGET_NR_getresgid:
3313
        {
3314
            gid_t rgid, egid, sgid;
3315
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3316
            if (!is_error(ret)) {
3317
                tput16(arg1, tswap16(high2lowgid(rgid)));
3318
                tput16(arg2, tswap16(high2lowgid(egid)));
3319
                tput16(arg3, tswap16(high2lowgid(sgid)));
3320
            }
3321
        }
3322
        break;
3323
#endif
3324
    case TARGET_NR_chown:
3325
        p = lock_user_string(arg1);
3326
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3327
        unlock_user(p, arg1, 0);
3328
        break;
3329
    case TARGET_NR_setuid:
3330
        ret = get_errno(setuid(low2highuid(arg1)));
3331
        break;
3332
    case TARGET_NR_setgid:
3333
        ret = get_errno(setgid(low2highgid(arg1)));
3334
        break;
3335
    case TARGET_NR_setfsuid:
3336
        ret = get_errno(setfsuid(arg1));
3337
        break;
3338
    case TARGET_NR_setfsgid:
3339
        ret = get_errno(setfsgid(arg1));
3340
        break;
3341
#endif /* USE_UID16 */
3342

    
3343
#ifdef TARGET_NR_lchown32
3344
    case TARGET_NR_lchown32:
3345
        p = lock_user_string(arg1);
3346
        ret = get_errno(lchown(p, arg2, arg3));
3347
        unlock_user(p, arg1, 0);
3348
        break;
3349
#endif
3350
#ifdef TARGET_NR_getuid32
3351
    case TARGET_NR_getuid32:
3352
        ret = get_errno(getuid());
3353
        break;
3354
#endif
3355
#ifdef TARGET_NR_getgid32
3356
    case TARGET_NR_getgid32:
3357
        ret = get_errno(getgid());
3358
        break;
3359
#endif
3360
#ifdef TARGET_NR_geteuid32
3361
    case TARGET_NR_geteuid32:
3362
        ret = get_errno(geteuid());
3363
        break;
3364
#endif
3365
#ifdef TARGET_NR_getegid32
3366
    case TARGET_NR_getegid32:
3367
        ret = get_errno(getegid());
3368
        break;
3369
#endif
3370
#ifdef TARGET_NR_setreuid32
3371
    case TARGET_NR_setreuid32:
3372
        ret = get_errno(setreuid(arg1, arg2));
3373
        break;
3374
#endif
3375
#ifdef TARGET_NR_setregid32
3376
    case TARGET_NR_setregid32:
3377
        ret = get_errno(setregid(arg1, arg2));
3378
        break;
3379
#endif
3380
#ifdef TARGET_NR_getgroups32
3381
    case TARGET_NR_getgroups32:
3382
        {
3383
            int gidsetsize = arg1;
3384
            uint32_t *target_grouplist;
3385
            gid_t *grouplist;
3386
            int i;
3387

    
3388
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3389
            ret = get_errno(getgroups(gidsetsize, grouplist));
3390
            if (!is_error(ret)) {
3391
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3392
                for(i = 0;i < gidsetsize; i++)
3393
                    target_grouplist[i] = tswap32(grouplist[i]);
3394
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
3395
            }
3396
        }
3397
        break;
3398
#endif
3399
#ifdef TARGET_NR_setgroups32
3400
    case TARGET_NR_setgroups32:
3401
        {
3402
            int gidsetsize = arg1;
3403
            uint32_t *target_grouplist;
3404
            gid_t *grouplist;
3405
            int i;
3406
            
3407
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3408
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3409
            for(i = 0;i < gidsetsize; i++)
3410
                grouplist[i] = tswap32(target_grouplist[i]);
3411
            unlock_user(target_grouplist, arg2, 0);
3412
            ret = get_errno(setgroups(gidsetsize, grouplist));
3413
        }
3414
        break;
3415
#endif
3416
#ifdef TARGET_NR_fchown32
3417
    case TARGET_NR_fchown32:
3418
        ret = get_errno(fchown(arg1, arg2, arg3));
3419
        break;
3420
#endif
3421
#ifdef TARGET_NR_setresuid32
3422
    case TARGET_NR_setresuid32:
3423
        ret = get_errno(setresuid(arg1, arg2, arg3));
3424
        break;
3425
#endif
3426
#ifdef TARGET_NR_getresuid32
3427
    case TARGET_NR_getresuid32:
3428
        {
3429
            uid_t ruid, euid, suid;
3430
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3431
            if (!is_error(ret)) {
3432
                tput32(arg1, tswap32(ruid));
3433
                tput32(arg2, tswap32(euid));
3434
                tput32(arg3, tswap32(suid));
3435
            }
3436
        }
3437
        break;
3438
#endif
3439
#ifdef TARGET_NR_setresgid32
3440
    case TARGET_NR_setresgid32:
3441
        ret = get_errno(setresgid(arg1, arg2, arg3));
3442
        break;
3443
#endif
3444
#ifdef TARGET_NR_getresgid32
3445
    case TARGET_NR_getresgid32:
3446
        {
3447
            gid_t rgid, egid, sgid;
3448
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3449
            if (!is_error(ret)) {
3450
                tput32(arg1, tswap32(rgid));
3451
                tput32(arg2, tswap32(egid));
3452
                tput32(arg3, tswap32(sgid));
3453
            }
3454
        }
3455
        break;
3456
#endif
3457
#ifdef TARGET_NR_chown32
3458
    case TARGET_NR_chown32:
3459
        p = lock_user_string(arg1);
3460
        ret = get_errno(chown(p, arg2, arg3));
3461
        unlock_user(p, arg1, 0);
3462
        break;
3463
#endif
3464
#ifdef TARGET_NR_setuid32
3465
    case TARGET_NR_setuid32:
3466
        ret = get_errno(setuid(arg1));
3467
        break;
3468
#endif
3469
#ifdef TARGET_NR_setgid32
3470
    case TARGET_NR_setgid32:
3471
        ret = get_errno(setgid(arg1));
3472
        break;
3473
#endif
3474
#ifdef TARGET_NR_setfsuid32
3475
    case TARGET_NR_setfsuid32:
3476
        ret = get_errno(setfsuid(arg1));
3477
        break;
3478
#endif
3479
#ifdef TARGET_NR_setfsgid32
3480
    case TARGET_NR_setfsgid32:
3481
        ret = get_errno(setfsgid(arg1));
3482
        break;
3483
#endif
3484

    
3485
    case TARGET_NR_pivot_root:
3486
        goto unimplemented;
3487
#ifdef TARGET_NR_mincore
3488
    case TARGET_NR_mincore:
3489
        goto unimplemented;
3490
#endif
3491
#ifdef TARGET_NR_madvise
3492
    case TARGET_NR_madvise:
3493
        /* A straight passthrough may not be safe because qemu sometimes
3494
           turns private flie-backed mappings into anonymous mappings.
3495
           This will break MADV_DONTNEED.
3496
           This is a hint, so ignoring and returning success is ok.  */
3497
        ret = get_errno(0);
3498
        break;
3499
#endif
3500
#if TARGET_LONG_BITS == 32
3501
    case TARGET_NR_fcntl64:
3502
    {
3503
        struct flock64 fl;
3504
        struct target_flock64 *target_fl;
3505
#ifdef TARGET_ARM
3506
        struct target_eabi_flock64 *target_efl;
3507
#endif
3508

    
3509
        switch(arg2) {
3510
        case F_GETLK64:
3511
            ret = get_errno(fcntl(arg1, arg2, &fl));
3512
            if (ret == 0) {
3513
#ifdef TARGET_ARM
3514
                if (((CPUARMState *)cpu_env)->eabi) {
3515
                    lock_user_struct(target_efl, arg3, 0);
3516
                    target_efl->l_type = tswap16(fl.l_type);
3517
                    target_efl->l_whence = tswap16(fl.l_whence);
3518
                    target_efl->l_start = tswap64(fl.l_start);
3519
                    target_efl->l_len = tswap64(fl.l_len);
3520
                    target_efl->l_pid = tswapl(fl.l_pid);
3521
                    unlock_user_struct(target_efl, arg3, 1);
3522
                } else
3523
#endif
3524
                {
3525
                    lock_user_struct(target_fl, arg3, 0);
3526
                    target_fl->l_type = tswap16(fl.l_type);
3527
                    target_fl->l_whence = tswap16(fl.l_whence);
3528
                    target_fl->l_start = tswap64(fl.l_start);
3529
                    target_fl->l_len = tswap64(fl.l_len);
3530
                    target_fl->l_pid = tswapl(fl.l_pid);
3531
                    unlock_user_struct(target_fl, arg3, 1);
3532
                }
3533
            }
3534
            break;
3535

    
3536
        case F_SETLK64:
3537
        case F_SETLKW64:
3538
#ifdef TARGET_ARM
3539
            if (((CPUARMState *)cpu_env)->eabi) {
3540
                lock_user_struct(target_efl, arg3, 1);
3541
                fl.l_type = tswap16(target_efl->l_type);
3542
                fl.l_whence = tswap16(target_efl->l_whence);
3543
                fl.l_start = tswap64(target_efl->l_start);
3544
                fl.l_len = tswap64(target_efl->l_len);
3545
                fl.l_pid = tswapl(target_efl->l_pid);
3546
                unlock_user_struct(target_efl, arg3, 0);
3547
            } else
3548
#endif
3549
            {
3550
                lock_user_struct(target_fl, arg3, 1);
3551
                fl.l_type = tswap16(target_fl->l_type);
3552
                fl.l_whence = tswap16(target_fl->l_whence);
3553
                fl.l_start = tswap64(target_fl->l_start);
3554
                fl.l_len = tswap64(target_fl->l_len);
3555
                fl.l_pid = tswapl(target_fl->l_pid);
3556
                unlock_user_struct(target_fl, arg3, 0);
3557
            }
3558
            ret = get_errno(fcntl(arg1, arg2, &fl));
3559
            break;
3560
        default:
3561
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
3562
            break;
3563
        }
3564
        break;
3565
    }
3566
#endif
3567
#ifdef TARGET_NR_security
3568
    case TARGET_NR_security:
3569
        goto unimplemented;
3570
#endif
3571
#ifdef TARGET_NR_getpagesize
3572
    case TARGET_NR_getpagesize:
3573
        ret = TARGET_PAGE_SIZE;
3574
        break;
3575
#endif
3576
    case TARGET_NR_gettid:
3577
        ret = get_errno(gettid());
3578
        break;
3579
    case TARGET_NR_readahead:
3580
        goto unimplemented;
3581
#ifdef TARGET_NR_setxattr
3582
    case TARGET_NR_setxattr:
3583
    case TARGET_NR_lsetxattr:
3584
    case TARGET_NR_fsetxattr:
3585
    case TARGET_NR_getxattr:
3586
    case TARGET_NR_lgetxattr:
3587
    case TARGET_NR_fgetxattr:
3588
    case TARGET_NR_listxattr:
3589
    case TARGET_NR_llistxattr:
3590
    case TARGET_NR_flistxattr:
3591
    case TARGET_NR_removexattr:
3592
    case TARGET_NR_lremovexattr:
3593
    case TARGET_NR_fremovexattr:
3594
        goto unimplemented_nowarn;
3595
#endif
3596
#ifdef TARGET_NR_set_thread_area
3597
    case TARGET_NR_set_thread_area:
3598
    case TARGET_NR_get_thread_area:
3599
        goto unimplemented_nowarn;
3600
#endif
3601
    default:
3602
    unimplemented:
3603
        gemu_log("qemu: Unsupported syscall: %d\n", num);
3604
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area)
3605
    unimplemented_nowarn:
3606
#endif
3607
        ret = -ENOSYS;
3608
        break;
3609
    }
3610
 fail:
3611
#ifdef DEBUG
3612
    gemu_log(" = %ld\n", ret);
3613
#endif
3614
    return ret;
3615
}
3616