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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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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/resource.h>
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#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
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#include <sched.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/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
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#define winsize host_winsize
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#define termio host_termio
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#define sgttyb host_sgttyb /* same as target */
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#define tchars host_tchars /* same as target */
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#define ltchars host_ltchars /* same as target */
58

    
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#include <linux/termios.h>
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#include <linux/unistd.h>
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#include <linux/utsname.h>
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#include <linux/cdrom.h>
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#include <linux/hdreg.h>
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#include <linux/soundcard.h>
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#include <linux/dirent.h>
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#include <linux/kd.h>
67

    
68
#include "qemu.h"
69

    
70
//#define DEBUG
71

    
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#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
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    || defined(TARGET_M68K)
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/* 16 bit uid wrappers emulation */
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#define USE_UID16
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#endif
77

    
78
//#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])
81

    
82

    
83
#undef _syscall0
84
#undef _syscall1
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#undef _syscall2
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#undef _syscall3
87
#undef _syscall4
88
#undef _syscall5
89
#undef _syscall6
90

    
91
#define _syscall0(type,name)                \
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type name (void)                        \
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{                                        \
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        return syscall(__NR_##name);        \
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}
96

    
97
#define _syscall1(type,name,type1,arg1)                \
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type name (type1 arg1)                                \
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{                                                \
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        return syscall(__NR_##name, arg1);        \
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}
102

    
103
#define _syscall2(type,name,type1,arg1,type2,arg2)        \
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type name (type1 arg1,type2 arg2)                        \
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{                                                        \
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        return syscall(__NR_##name, arg1, arg2);        \
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}
108

    
109
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
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type name (type1 arg1,type2 arg2,type3 arg3)                        \
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{                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3);                \
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}
114

    
115
#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)                                \
117
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4);                        \
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}
120

    
121
#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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}
127

    
128

    
129
#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)        \
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{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6);        \
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}
135

    
136

    
137
#define __NR_sys_uname __NR_uname
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#define __NR_sys_getcwd1 __NR_getcwd
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#define __NR_sys_getdents __NR_getdents
140
#define __NR_sys_getdents64 __NR_getdents64
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#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
142

    
143
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
144
#define __NR__llseek __NR_lseek
145
#endif
146

    
147
#ifdef __NR_gettid
148
_syscall0(int, gettid)
149
#else
150
static int gettid(void) {
151
    return -ENOSYS;
152
}
153
#endif
154
_syscall1(int,sys_uname,struct new_utsname *,buf)
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_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
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_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
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_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
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_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
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          loff_t *, res, uint, wh);
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_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
161
#ifdef __NR_exit_group
162
_syscall1(int,exit_group,int,error_code)
163
#endif
164

    
165
extern int personality(int);
166
extern int flock(int, int);
167
extern int setfsuid(int);
168
extern int setfsgid(int);
169
extern int setresuid(uid_t, uid_t, uid_t);
170
extern int getresuid(uid_t *, uid_t *, uid_t *);
171
extern int setresgid(gid_t, gid_t, gid_t);
172
extern int getresgid(gid_t *, gid_t *, gid_t *);
173
extern int setgroups(int, gid_t *);
174

    
175
static inline long get_errno(long ret)
176
{
177
    if (ret == -1)
178
        return -errno;
179
    else
180
        return ret;
181
}
182

    
183
static inline int is_error(long ret)
184
{
185
    return (unsigned long)ret >= (unsigned long)(-4096);
186
}
187

    
188
static target_ulong target_brk;
189
static target_ulong target_original_brk;
190

    
191
void target_set_brk(target_ulong new_brk)
192
{
193
    target_original_brk = target_brk = new_brk;
194
}
195

    
196
long do_brk(target_ulong new_brk)
197
{
198
    target_ulong brk_page;
199
    long mapped_addr;
200
    int        new_alloc_size;
201

    
202
    if (!new_brk)
203
        return target_brk;
204
    if (new_brk < target_original_brk)
205
        return -ENOMEM;
206
    
207
    brk_page = HOST_PAGE_ALIGN(target_brk);
208

    
209
    /* If the new brk is less than this, set it and we're done... */
210
    if (new_brk < brk_page) {
211
        target_brk = new_brk;
212
            return target_brk;
213
    }
214

    
215
    /* We need to allocate more memory after the brk... */
216
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
217
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 
218
                                        PROT_READ|PROT_WRITE,
219
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
220
    if (is_error(mapped_addr)) {
221
        return mapped_addr;
222
    } else {
223
        target_brk = new_brk;
224
            return target_brk;
225
    }
226
}
227

    
228
static inline fd_set *target_to_host_fds(fd_set *fds, 
229
                                         target_long *target_fds, int n)
230
{
231
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
232
    return (fd_set *)target_fds;
233
#else
234
    int i, b;
235
    if (target_fds) {
236
        FD_ZERO(fds);
237
        for(i = 0;i < n; i++) {
238
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
239
                 (i & (TARGET_LONG_BITS - 1))) & 1;
240
            if (b)
241
                FD_SET(i, fds);
242
        }
243
        return fds;
244
    } else {
245
        return NULL;
246
    }
247
#endif
248
}
249

    
250
static inline void host_to_target_fds(target_long *target_fds, 
251
                                      fd_set *fds, int n)
252
{
253
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
254
    /* nothing to do */
255
#else
256
    int i, nw, j, k;
257
    target_long v;
258

    
259
    if (target_fds) {
260
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
261
        k = 0;
262
        for(i = 0;i < nw; i++) {
263
            v = 0;
264
            for(j = 0; j < TARGET_LONG_BITS; j++) {
265
                v |= ((FD_ISSET(k, fds) != 0) << j);
266
                k++;
267
            }
268
            target_fds[i] = tswapl(v);
269
        }
270
    }
271
#endif
272
}
273

    
274
#if defined(__alpha__)
275
#define HOST_HZ 1024
276
#else
277
#define HOST_HZ 100
278
#endif
279

    
280
static inline long host_to_target_clock_t(long ticks)
281
{
282
#if HOST_HZ == TARGET_HZ
283
    return ticks;
284
#else
285
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
286
#endif
287
}
288

    
289
static inline void host_to_target_rusage(target_ulong target_addr,
290
                                         const struct rusage *rusage)
291
{
292
    struct target_rusage *target_rusage;
293

    
294
    lock_user_struct(target_rusage, target_addr, 0);
295
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
296
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
297
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
298
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
299
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
300
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
301
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
302
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
303
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
304
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
305
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
306
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
307
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
308
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
309
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
310
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
311
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
312
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
313
    unlock_user_struct(target_rusage, target_addr, 1);
314
}
315

    
316
static inline void target_to_host_timeval(struct timeval *tv,
317
                                          target_ulong target_addr)
318
{
319
    struct target_timeval *target_tv;
320

    
321
    lock_user_struct(target_tv, target_addr, 1);
322
    tv->tv_sec = tswapl(target_tv->tv_sec);
323
    tv->tv_usec = tswapl(target_tv->tv_usec);
324
    unlock_user_struct(target_tv, target_addr, 0);
325
}
326

    
327
static inline void host_to_target_timeval(target_ulong target_addr,
328
                                          const struct timeval *tv)
329
{
330
    struct target_timeval *target_tv;
331

    
332
    lock_user_struct(target_tv, target_addr, 0);
333
    target_tv->tv_sec = tswapl(tv->tv_sec);
334
    target_tv->tv_usec = tswapl(tv->tv_usec);
335
    unlock_user_struct(target_tv, target_addr, 1);
336
}
337

    
338

    
339
static long do_select(long n, 
340
                      target_ulong rfd_p, target_ulong wfd_p, 
341
                      target_ulong efd_p, target_ulong target_tv)
342
{
343
    fd_set rfds, wfds, efds;
344
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
345
    target_long *target_rfds, *target_wfds, *target_efds;
346
    struct timeval tv, *tv_ptr;
347
    long ret;
348
    int ok;
349

    
350
    if (rfd_p) {
351
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
352
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
353
    } else {
354
        target_rfds = NULL;
355
        rfds_ptr = NULL;
356
    }
357
    if (wfd_p) {
358
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
359
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
360
    } else {
361
        target_wfds = NULL;
362
        wfds_ptr = NULL;
363
    }
364
    if (efd_p) {
365
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
366
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
367
    } else {
368
        target_efds = NULL;
369
        efds_ptr = NULL;
370
    }
371
            
372
    if (target_tv) {
373
        target_to_host_timeval(&tv, target_tv);
374
        tv_ptr = &tv;
375
    } else {
376
        tv_ptr = NULL;
377
    }
378
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
379
    ok = !is_error(ret);
380

    
381
    if (ok) {
382
        host_to_target_fds(target_rfds, rfds_ptr, n);
383
        host_to_target_fds(target_wfds, wfds_ptr, n);
384
        host_to_target_fds(target_efds, efds_ptr, n);
385

    
386
        if (target_tv) {
387
            host_to_target_timeval(target_tv, &tv);
388
        }
389
    }
390
    if (target_rfds)
391
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
392
    if (target_wfds)
393
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
394
    if (target_efds)
395
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
396

    
397
    return ret;
398
}
399

    
400
static inline void target_to_host_sockaddr(struct sockaddr *addr,
401
                                           target_ulong target_addr,
402
                                           socklen_t len)
403
{
404
    struct target_sockaddr *target_saddr;
405

    
406
    target_saddr = lock_user(target_addr, len, 1);
407
    memcpy(addr, target_saddr, len);
408
    addr->sa_family = tswap16(target_saddr->sa_family);
409
    unlock_user(target_saddr, target_addr, 0);
410
}
411

    
412
static inline void host_to_target_sockaddr(target_ulong target_addr,
413
                                           struct sockaddr *addr,
414
                                           socklen_t len)
415
{
416
    struct target_sockaddr *target_saddr;
417

    
418
    target_saddr = lock_user(target_addr, len, 0);
419
    memcpy(target_saddr, addr, len);
420
    target_saddr->sa_family = tswap16(addr->sa_family);
421
    unlock_user(target_saddr, target_addr, len);
422
}
423

    
424
/* ??? Should this also swap msgh->name?  */
425
static inline void target_to_host_cmsg(struct msghdr *msgh,
426
                                       struct target_msghdr *target_msgh)
427
{
428
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
429
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
430
    socklen_t space = 0;
431

    
432
    while (cmsg && target_cmsg) {
433
        void *data = CMSG_DATA(cmsg);
434
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
435

    
436
        int len = tswapl(target_cmsg->cmsg_len) 
437
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
438

    
439
        space += CMSG_SPACE(len);
440
        if (space > msgh->msg_controllen) {
441
            space -= CMSG_SPACE(len);
442
            gemu_log("Host cmsg overflow\n");
443
            break;
444
        }
445

    
446
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
447
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
448
        cmsg->cmsg_len = CMSG_LEN(len);
449

    
450
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
451
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
452
            memcpy(data, target_data, len);
453
        } else {
454
            int *fd = (int *)data;
455
            int *target_fd = (int *)target_data;
456
            int i, numfds = len / sizeof(int);
457

    
458
            for (i = 0; i < numfds; i++)
459
                fd[i] = tswap32(target_fd[i]);
460
        }
461

    
462
        cmsg = CMSG_NXTHDR(msgh, cmsg);
463
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
464
    }
465

    
466
    msgh->msg_controllen = space;
467
}
468

    
469
/* ??? Should this also swap msgh->name?  */
470
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
471
                                       struct msghdr *msgh)
472
{
473
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
474
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
475
    socklen_t space = 0;
476

    
477
    while (cmsg && target_cmsg) {
478
        void *data = CMSG_DATA(cmsg);
479
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
480

    
481
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
482

    
483
        space += TARGET_CMSG_SPACE(len);
484
        if (space > tswapl(target_msgh->msg_controllen)) {
485
            space -= TARGET_CMSG_SPACE(len);
486
            gemu_log("Target cmsg overflow\n");
487
            break;
488
        }
489

    
490
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
491
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
492
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
493

    
494
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
495
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
496
            memcpy(target_data, data, len);
497
        } else {
498
            int *fd = (int *)data;
499
            int *target_fd = (int *)target_data;
500
            int i, numfds = len / sizeof(int);
501

    
502
            for (i = 0; i < numfds; i++)
503
                target_fd[i] = tswap32(fd[i]);
504
        }
505

    
506
        cmsg = CMSG_NXTHDR(msgh, cmsg);
507
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
508
    }
509

    
510
    msgh->msg_controllen = tswapl(space);
511
}
512

    
513
static long do_setsockopt(int sockfd, int level, int optname, 
514
                          target_ulong optval, socklen_t optlen)
515
{
516
    int val, ret;
517
            
518
    switch(level) {
519
    case SOL_TCP:
520
        /* TCP options all take an 'int' value.  */
521
        if (optlen < sizeof(uint32_t))
522
            return -EINVAL;
523
        
524
        val = tget32(optval);
525
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
526
        break;
527
    case SOL_IP:
528
        switch(optname) {
529
        case IP_TOS:
530
        case IP_TTL:
531
        case IP_HDRINCL:
532
        case IP_ROUTER_ALERT:
533
        case IP_RECVOPTS:
534
        case IP_RETOPTS:
535
        case IP_PKTINFO:
536
        case IP_MTU_DISCOVER:
537
        case IP_RECVERR:
538
        case IP_RECVTOS:
539
#ifdef IP_FREEBIND
540
        case IP_FREEBIND:
541
#endif
542
        case IP_MULTICAST_TTL:
543
        case IP_MULTICAST_LOOP:
544
            val = 0;
545
            if (optlen >= sizeof(uint32_t)) {
546
                val = tget32(optval);
547
            } else if (optlen >= 1) {
548
                val = tget8(optval);
549
            }
550
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
551
            break;
552
        default:
553
            goto unimplemented;
554
        }
555
        break;
556
    case TARGET_SOL_SOCKET:
557
        switch (optname) {
558
            /* Options with 'int' argument.  */
559
        case TARGET_SO_DEBUG:
560
                optname = SO_DEBUG;
561
                break;
562
        case TARGET_SO_REUSEADDR:
563
                optname = SO_REUSEADDR;
564
                break;
565
        case TARGET_SO_TYPE:
566
                optname = SO_TYPE;
567
                break;
568
        case TARGET_SO_ERROR:
569
                optname = SO_ERROR;
570
                break;
571
        case TARGET_SO_DONTROUTE:
572
                optname = SO_DONTROUTE;
573
                break;
574
        case TARGET_SO_BROADCAST:
575
                optname = SO_BROADCAST;
576
                break;
577
        case TARGET_SO_SNDBUF:
578
                optname = SO_SNDBUF;
579
                break;
580
        case TARGET_SO_RCVBUF:
581
                optname = SO_RCVBUF;
582
                break;
583
        case TARGET_SO_KEEPALIVE:
584
                optname = SO_KEEPALIVE;
585
                break;
586
        case TARGET_SO_OOBINLINE:
587
                optname = SO_OOBINLINE;
588
                break;
589
        case TARGET_SO_NO_CHECK:
590
                optname = SO_NO_CHECK;
591
                break;
592
        case TARGET_SO_PRIORITY:
593
                optname = SO_PRIORITY;
594
                break;
595
#ifdef SO_BSDCOMPAT
596
        case TARGET_SO_BSDCOMPAT:
597
                optname = SO_BSDCOMPAT;
598
                break;
599
#endif
600
        case TARGET_SO_PASSCRED:
601
                optname = SO_PASSCRED;
602
                break;
603
        case TARGET_SO_TIMESTAMP:
604
                optname = SO_TIMESTAMP;
605
                break;
606
        case TARGET_SO_RCVLOWAT:
607
                optname = SO_RCVLOWAT;
608
                break;
609
        case TARGET_SO_RCVTIMEO:
610
                optname = SO_RCVTIMEO;
611
                break;
612
        case TARGET_SO_SNDTIMEO:
613
                optname = SO_SNDTIMEO;
614
                break;
615
            break;
616
        default:
617
            goto unimplemented;
618
        }
619
        if (optlen < sizeof(uint32_t))
620
        return -EINVAL;
621

    
622
        val = tget32(optval);
623
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
624
        break;
625
    default:
626
    unimplemented:
627
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
628
        ret = -ENOSYS;
629
    }
630
    return ret;
631
}
632

    
633
static long do_getsockopt(int sockfd, int level, int optname, 
634
                          target_ulong optval, target_ulong optlen)
635
{
636
    int len, lv, val, ret;
637

    
638
    switch(level) {
639
    case TARGET_SOL_SOCKET:
640
            level = SOL_SOCKET;
641
        switch (optname) {
642
        case TARGET_SO_LINGER:
643
        case TARGET_SO_RCVTIMEO:
644
        case TARGET_SO_SNDTIMEO:
645
        case TARGET_SO_PEERCRED:
646
        case TARGET_SO_PEERNAME:
647
            /* These don't just return a single integer */
648
            goto unimplemented;
649
        default:
650
            goto int_case;
651
        }
652
        break;
653
    case SOL_TCP:
654
        /* TCP options all take an 'int' value.  */
655
    int_case:
656
        len = tget32(optlen);
657
        if (len < 0)
658
            return -EINVAL;
659
        lv = sizeof(int);
660
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
661
        if (ret < 0)
662
            return ret;
663
        val = tswap32(val);
664
        if (len > lv)
665
            len = lv;
666
        if (len == 4)
667
            tput32(optval, val);
668
        else
669
            tput8(optval, val);
670
        tput32(optlen, len);
671
        break;
672
    case SOL_IP:
673
        switch(optname) {
674
        case IP_TOS:
675
        case IP_TTL:
676
        case IP_HDRINCL:
677
        case IP_ROUTER_ALERT:
678
        case IP_RECVOPTS:
679
        case IP_RETOPTS:
680
        case IP_PKTINFO:
681
        case IP_MTU_DISCOVER:
682
        case IP_RECVERR:
683
        case IP_RECVTOS:
684
#ifdef IP_FREEBIND
685
        case IP_FREEBIND:
686
#endif
687
        case IP_MULTICAST_TTL:
688
        case IP_MULTICAST_LOOP:
689
            len = tget32(optlen);
690
            if (len < 0)
691
                return -EINVAL;
692
            lv = sizeof(int);
693
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
694
            if (ret < 0)
695
                return ret;
696
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
697
                len = 1;
698
                tput32(optlen, len);
699
                tput8(optval, val);
700
            } else {
701
                if (len > sizeof(int))
702
                    len = sizeof(int);
703
                tput32(optlen, len);
704
                tput32(optval, val);
705
            }
706
            break;
707
        default:
708
            goto unimplemented;
709
        }
710
        break;
711
    default:
712
    unimplemented:
713
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
714
                 level, optname);
715
        ret = -ENOSYS;
716
        break;
717
    }
718
    return ret;
719
}
720

    
721
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
722
                       int count, int copy)
723
{
724
    struct target_iovec *target_vec;
725
    target_ulong base;
726
    int i;
727

    
728
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
729
    for(i = 0;i < count; i++) {
730
        base = tswapl(target_vec[i].iov_base);
731
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
732
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
733
    }
734
    unlock_user (target_vec, target_addr, 0);
735
}
736

    
737
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
738
                         int count, int copy)
739
{
740
    struct target_iovec *target_vec;
741
    target_ulong base;
742
    int i;
743

    
744
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
745
    for(i = 0;i < count; i++) {
746
        base = tswapl(target_vec[i].iov_base);
747
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
748
    }
749
    unlock_user (target_vec, target_addr, 0);
750
}
751

    
752
static long do_socket(int domain, int type, int protocol)
753
{
754
#if defined(TARGET_MIPS)
755
    switch(type) {
756
    case TARGET_SOCK_DGRAM:
757
        type = SOCK_DGRAM;
758
        break;
759
    case TARGET_SOCK_STREAM:
760
        type = SOCK_STREAM;
761
        break;
762
    case TARGET_SOCK_RAW:
763
        type = SOCK_RAW;
764
        break;
765
    case TARGET_SOCK_RDM:
766
        type = SOCK_RDM;
767
        break;
768
    case TARGET_SOCK_SEQPACKET:
769
        type = SOCK_SEQPACKET;
770
        break;
771
    case TARGET_SOCK_PACKET:
772
        type = SOCK_PACKET;
773
        break;
774
    }
775
#endif
776
    return get_errno(socket(domain, type, protocol));
777
}
778

    
779
static long do_bind(int sockfd, target_ulong target_addr,
780
                    socklen_t addrlen)
781
{
782
    void *addr = alloca(addrlen);
783
    
784
    target_to_host_sockaddr(addr, target_addr, addrlen);
785
    return get_errno(bind(sockfd, addr, addrlen));
786
}
787

    
788
static long do_connect(int sockfd, target_ulong target_addr,
789
                    socklen_t addrlen)
790
{
791
    void *addr = alloca(addrlen);
792
    
793
    target_to_host_sockaddr(addr, target_addr, addrlen);
794
    return get_errno(connect(sockfd, addr, addrlen));
795
}
796

    
797
static long do_sendrecvmsg(int fd, target_ulong target_msg,
798
                           int flags, int send)
799
{
800
    long ret;
801
    struct target_msghdr *msgp;
802
    struct msghdr msg;
803
    int count;
804
    struct iovec *vec;
805
    target_ulong target_vec;
806

    
807
    lock_user_struct(msgp, target_msg, 1);
808
    if (msgp->msg_name) {
809
        msg.msg_namelen = tswap32(msgp->msg_namelen);
810
        msg.msg_name = alloca(msg.msg_namelen);
811
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
812
                                msg.msg_namelen);
813
    } else {
814
        msg.msg_name = NULL;
815
        msg.msg_namelen = 0;
816
    }
817
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
818
    msg.msg_control = alloca(msg.msg_controllen);
819
    msg.msg_flags = tswap32(msgp->msg_flags);
820
    
821
    count = tswapl(msgp->msg_iovlen);
822
    vec = alloca(count * sizeof(struct iovec));
823
    target_vec = tswapl(msgp->msg_iov);
824
    lock_iovec(vec, target_vec, count, send);
825
    msg.msg_iovlen = count;
826
    msg.msg_iov = vec;
827
    
828
    if (send) {
829
        target_to_host_cmsg(&msg, msgp);
830
        ret = get_errno(sendmsg(fd, &msg, flags));
831
    } else {
832
        ret = get_errno(recvmsg(fd, &msg, flags));
833
        if (!is_error(ret))
834
            host_to_target_cmsg(msgp, &msg);
835
    }
836
    unlock_iovec(vec, target_vec, count, !send);
837
    return ret;
838
}
839

    
840
static long do_socketcall(int num, target_ulong vptr)
841
{
842
    long ret;
843
    const int n = sizeof(target_ulong);
844

    
845
    switch(num) {
846
    case SOCKOP_socket:
847
        {
848
            int domain = tgetl(vptr);
849
            int type = tgetl(vptr + n);
850
            int protocol = tgetl(vptr + 2 * n);
851
            ret = do_socket(domain, type, protocol);
852
        }
853
        break;
854
    case SOCKOP_bind:
855
        {
856
            int sockfd = tgetl(vptr);
857
            target_ulong target_addr = tgetl(vptr + n);
858
            socklen_t addrlen = tgetl(vptr + 2 * n);
859
            ret = do_bind(sockfd, target_addr, addrlen);
860
        }
861
        break;
862
    case SOCKOP_connect:
863
        {
864
            int sockfd = tgetl(vptr);
865
            target_ulong target_addr = tgetl(vptr + n);
866
            socklen_t addrlen = tgetl(vptr + 2 * n);
867
            ret = do_connect(sockfd, target_addr, addrlen);
868
        }
869
        break;
870
    case SOCKOP_listen:
871
        {
872
            int sockfd = tgetl(vptr);
873
            int backlog = tgetl(vptr + n);
874
            ret = get_errno(listen(sockfd, backlog));
875
        }
876
        break;
877
    case SOCKOP_accept:
878
        {
879
            int sockfd = tgetl(vptr);
880
            target_ulong target_addr = tgetl(vptr + n);
881
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
882
            socklen_t addrlen = tget32(target_addrlen);
883
            void *addr = alloca(addrlen);
884

    
885
            ret = get_errno(accept(sockfd, addr, &addrlen));
886
            if (!is_error(ret)) {
887
                host_to_target_sockaddr(target_addr, addr, addrlen);
888
                tput32(target_addrlen, addrlen);
889
            }
890
        }
891
        break;
892
    case SOCKOP_getsockname:
893
        {
894
            int sockfd = tgetl(vptr);
895
            target_ulong target_addr = tgetl(vptr + n);
896
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
897
            socklen_t addrlen = tget32(target_addrlen);
898
            void *addr = alloca(addrlen);
899

    
900
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
901
            if (!is_error(ret)) {
902
                host_to_target_sockaddr(target_addr, addr, addrlen);
903
                tput32(target_addrlen, addrlen);
904
            }
905
        }
906
        break;
907
    case SOCKOP_getpeername:
908
        {
909
            int sockfd = tgetl(vptr);
910
            target_ulong target_addr = tgetl(vptr + n);
911
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
912
            socklen_t addrlen = tget32(target_addrlen);
913
            void *addr = alloca(addrlen);
914

    
915
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
916
            if (!is_error(ret)) {
917
                host_to_target_sockaddr(target_addr, addr, addrlen);
918
                tput32(target_addrlen, addrlen);
919
            }
920
        }
921
        break;
922
    case SOCKOP_socketpair:
923
        {
924
            int domain = tgetl(vptr);
925
            int type = tgetl(vptr + n);
926
            int protocol = tgetl(vptr + 2 * n);
927
            target_ulong target_tab = tgetl(vptr + 3 * n);
928
            int tab[2];
929

    
930
            ret = get_errno(socketpair(domain, type, protocol, tab));
931
            if (!is_error(ret)) {
932
                tput32(target_tab, tab[0]);
933
                tput32(target_tab + 4, tab[1]);
934
            }
935
        }
936
        break;
937
    case SOCKOP_send:
938
        {
939
            int sockfd = tgetl(vptr);
940
            target_ulong msg = tgetl(vptr + n);
941
            size_t len = tgetl(vptr + 2 * n);
942
            int flags = tgetl(vptr + 3 * n);
943
            void *host_msg;
944

    
945
            host_msg = lock_user(msg, len, 1);
946
            ret = get_errno(send(sockfd, host_msg, len, flags));
947
            unlock_user(host_msg, msg, 0);
948
        }
949
        break;
950
    case SOCKOP_recv:
951
        {
952
            int sockfd = tgetl(vptr);
953
            target_ulong msg = tgetl(vptr + n);
954
            size_t len = tgetl(vptr + 2 * n);
955
            int flags = tgetl(vptr + 3 * n);
956
            void *host_msg;
957

    
958
            host_msg = lock_user(msg, len, 0);
959
            ret = get_errno(recv(sockfd, host_msg, len, flags));
960
            unlock_user(host_msg, msg, ret);
961
        }
962
        break;
963
    case SOCKOP_sendto:
964
        {
965
            int sockfd = tgetl(vptr);
966
            target_ulong msg = tgetl(vptr + n);
967
            size_t len = tgetl(vptr + 2 * n);
968
            int flags = tgetl(vptr + 3 * n);
969
            target_ulong target_addr = tgetl(vptr + 4 * n);
970
            socklen_t addrlen = tgetl(vptr + 5 * n);
971
            void *addr = alloca(addrlen);
972
            void *host_msg;
973

    
974
            host_msg = lock_user(msg, len, 1);
975
            target_to_host_sockaddr(addr, target_addr, addrlen);
976
            ret = get_errno(sendto(sockfd, host_msg, len, flags, addr, addrlen));
977
            unlock_user(host_msg, msg, 0);
978
        }
979
        break;
980
    case SOCKOP_recvfrom:
981
        {
982
            int sockfd = tgetl(vptr);
983
            target_ulong msg = tgetl(vptr + n);
984
            size_t len = tgetl(vptr + 2 * n);
985
            int flags = tgetl(vptr + 3 * n);
986
            target_ulong target_addr = tgetl(vptr + 4 * n);
987
            target_ulong target_addrlen = tgetl(vptr + 5 * n);
988
            socklen_t addrlen = tget32(target_addrlen);
989
            void *addr = alloca(addrlen);
990
            void *host_msg;
991

    
992
            host_msg = lock_user(msg, len, 0);
993
            ret = get_errno(recvfrom(sockfd, host_msg, len, flags, addr, &addrlen));
994
            if (!is_error(ret)) {
995
                host_to_target_sockaddr(target_addr, addr, addrlen);
996
                tput32(target_addrlen, addrlen);
997
                unlock_user(host_msg, msg, len);
998
            } else {
999
                unlock_user(host_msg, msg, 0);
1000
            }
1001
        }
1002
        break;
1003
    case SOCKOP_shutdown:
1004
        {
1005
            int sockfd = tgetl(vptr);
1006
            int how = tgetl(vptr + n);
1007

    
1008
            ret = get_errno(shutdown(sockfd, how));
1009
        }
1010
        break;
1011
    case SOCKOP_sendmsg:
1012
    case SOCKOP_recvmsg:
1013
        {
1014
            int fd;
1015
            target_ulong target_msg;
1016
            int flags;
1017

    
1018
            fd = tgetl(vptr);
1019
            target_msg = tgetl(vptr + n);
1020
            flags = tgetl(vptr + 2 * n);
1021

    
1022
            ret = do_sendrecvmsg(fd, target_msg, flags, 
1023
                                 (num == SOCKOP_sendmsg));
1024
        }
1025
        break;
1026
    case SOCKOP_setsockopt:
1027
        {
1028
            int sockfd = tgetl(vptr);
1029
            int level = tgetl(vptr + n);
1030
            int optname = tgetl(vptr + 2 * n);
1031
            target_ulong optval = tgetl(vptr + 3 * n);
1032
            socklen_t optlen = tgetl(vptr + 4 * n);
1033

    
1034
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1035
        }
1036
        break;
1037
    case SOCKOP_getsockopt:
1038
        {
1039
            int sockfd = tgetl(vptr);
1040
            int level = tgetl(vptr + n);
1041
            int optname = tgetl(vptr + 2 * n);
1042
            target_ulong optval = tgetl(vptr + 3 * n);
1043
            target_ulong poptlen = tgetl(vptr + 4 * n);
1044

    
1045
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1046
        }
1047
        break;
1048
    default:
1049
        gemu_log("Unsupported socketcall: %d\n", num);
1050
        ret = -ENOSYS;
1051
        break;
1052
    }
1053
    return ret;
1054
}
1055

    
1056
/* XXX: suppress this function and call directly the related socket
1057
   functions */
1058
static long do_socketcallwrapper(int num, long arg1, long arg2, long arg3,
1059
                                 long arg4, long arg5, long arg6)
1060
{
1061
    target_long args[6];
1062

    
1063
    tputl(args, arg1);
1064
    tputl(args+1, arg2);
1065
    tputl(args+2, arg3);
1066
    tputl(args+3, arg4);
1067
    tputl(args+4, arg5);
1068
    tputl(args+5, arg6);
1069

    
1070
    return do_socketcall(num, (target_ulong) args);
1071
}
1072

    
1073
#define N_SHM_REGIONS        32
1074

    
1075
static struct shm_region {
1076
    uint32_t        start;
1077
    uint32_t        size;
1078
} shm_regions[N_SHM_REGIONS];
1079

    
1080
/* ??? This only works with linear mappings.  */
1081
static long do_ipc(long call, long first, long second, long third,
1082
                   long ptr, long fifth)
1083
{
1084
    int version;
1085
    long ret = 0;
1086
    unsigned long raddr;
1087
    struct shmid_ds shm_info;
1088
    int i;
1089

    
1090
    version = call >> 16;
1091
    call &= 0xffff;
1092

    
1093
    switch (call) {
1094
    case IPCOP_shmat:
1095
        /* SHM_* flags are the same on all linux platforms */
1096
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1097
        if (is_error(ret))
1098
            break;
1099
        raddr = ret;
1100
        /* find out the length of the shared memory segment */
1101
        
1102
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1103
        if (is_error(ret)) {
1104
            /* can't get length, bail out */
1105
            shmdt((void *) raddr);
1106
            break;
1107
        }
1108
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1109
                       PAGE_VALID | PAGE_READ |
1110
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1111
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1112
            if (shm_regions[i].start == 0) {
1113
                shm_regions[i].start = raddr;
1114
                shm_regions[i].size = shm_info.shm_segsz;
1115
                break;
1116
            }
1117
        }
1118
        if (put_user(raddr, (uint32_t *)third))
1119
            return -EFAULT;
1120
        ret = 0;
1121
        break;
1122
    case IPCOP_shmdt:
1123
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1124
            if (shm_regions[i].start == ptr) {
1125
                shm_regions[i].start = 0;
1126
                page_set_flags(ptr, shm_regions[i].size, 0);
1127
                break;
1128
            }
1129
        }
1130
        ret = get_errno(shmdt((void *) ptr));
1131
        break;
1132

    
1133
    case IPCOP_shmget:
1134
        /* IPC_* flag values are the same on all linux platforms */
1135
        ret = get_errno(shmget(first, second, third));
1136
        break;
1137

    
1138
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1139
    case IPCOP_shmctl:
1140
        switch(second) {
1141
        case IPC_RMID:
1142
        case SHM_LOCK:
1143
        case SHM_UNLOCK:
1144
            ret = get_errno(shmctl(first, second, NULL));
1145
            break;
1146
        default:
1147
            goto unimplemented;
1148
        }
1149
        break;
1150
    default:
1151
    unimplemented:
1152
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1153
        ret = -ENOSYS;
1154
        break;
1155
    }
1156
    return ret;
1157
}
1158

    
1159
/* kernel structure types definitions */
1160
#define IFNAMSIZ        16
1161

    
1162
#define STRUCT(name, list...) STRUCT_ ## name,
1163
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1164
enum {
1165
#include "syscall_types.h"
1166
};
1167
#undef STRUCT
1168
#undef STRUCT_SPECIAL
1169

    
1170
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1171
#define STRUCT_SPECIAL(name)
1172
#include "syscall_types.h"
1173
#undef STRUCT
1174
#undef STRUCT_SPECIAL
1175

    
1176
typedef struct IOCTLEntry {
1177
    unsigned int target_cmd;
1178
    unsigned int host_cmd;
1179
    const char *name;
1180
    int access;
1181
    const argtype arg_type[5];
1182
} IOCTLEntry;
1183

    
1184
#define IOC_R 0x0001
1185
#define IOC_W 0x0002
1186
#define IOC_RW (IOC_R | IOC_W)
1187

    
1188
#define MAX_STRUCT_SIZE 4096
1189

    
1190
IOCTLEntry ioctl_entries[] = {
1191
#define IOCTL(cmd, access, types...) \
1192
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1193
#include "ioctls.h"
1194
    { 0, 0, },
1195
};
1196

    
1197
/* ??? Implement proper locking for ioctls.  */
1198
static long do_ioctl(long fd, long cmd, long arg)
1199
{
1200
    const IOCTLEntry *ie;
1201
    const argtype *arg_type;
1202
    long ret;
1203
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1204
    int target_size;
1205
    void *argptr;
1206

    
1207
    ie = ioctl_entries;
1208
    for(;;) {
1209
        if (ie->target_cmd == 0) {
1210
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1211
            return -ENOSYS;
1212
        }
1213
        if (ie->target_cmd == cmd)
1214
            break;
1215
        ie++;
1216
    }
1217
    arg_type = ie->arg_type;
1218
#if defined(DEBUG)
1219
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1220
#endif
1221
    switch(arg_type[0]) {
1222
    case TYPE_NULL:
1223
        /* no argument */
1224
        ret = get_errno(ioctl(fd, ie->host_cmd));
1225
        break;
1226
    case TYPE_PTRVOID:
1227
    case TYPE_INT:
1228
        /* int argment */
1229
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1230
        break;
1231
    case TYPE_PTR:
1232
        arg_type++;
1233
        target_size = thunk_type_size(arg_type, 0);
1234
        switch(ie->access) {
1235
        case IOC_R:
1236
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1237
            if (!is_error(ret)) {
1238
                argptr = lock_user(arg, target_size, 0);
1239
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1240
                unlock_user(argptr, arg, target_size);
1241
            }
1242
            break;
1243
        case IOC_W:
1244
            argptr = lock_user(arg, target_size, 1);
1245
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1246
            unlock_user(argptr, arg, 0);
1247
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1248
            break;
1249
        default:
1250
        case IOC_RW:
1251
            argptr = lock_user(arg, target_size, 1);
1252
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1253
            unlock_user(argptr, arg, 0);
1254
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1255
            if (!is_error(ret)) {
1256
                argptr = lock_user(arg, target_size, 0);
1257
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1258
                unlock_user(argptr, arg, target_size);
1259
            }
1260
            break;
1261
        }
1262
        break;
1263
    default:
1264
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1265
        ret = -ENOSYS;
1266
        break;
1267
    }
1268
    return ret;
1269
}
1270

    
1271
bitmask_transtbl iflag_tbl[] = {
1272
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1273
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1274
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1275
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1276
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1277
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1278
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1279
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1280
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1281
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1282
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1283
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1284
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1285
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1286
        { 0, 0, 0, 0 }
1287
};
1288

    
1289
bitmask_transtbl oflag_tbl[] = {
1290
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1291
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1292
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1293
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1294
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1295
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1296
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1297
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1298
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1299
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1300
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1301
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1302
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1303
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1304
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1305
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1306
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1307
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1308
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1309
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1310
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1311
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1312
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1313
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1314
        { 0, 0, 0, 0 }
1315
};
1316

    
1317
bitmask_transtbl cflag_tbl[] = {
1318
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1319
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1320
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1321
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1322
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1323
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1324
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1325
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1326
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1327
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1328
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1329
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1330
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1331
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1332
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1333
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1334
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1335
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1336
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1337
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1338
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1339
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1340
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1341
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1342
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1343
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1344
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1345
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1346
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1347
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1348
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1349
        { 0, 0, 0, 0 }
1350
};
1351

    
1352
bitmask_transtbl lflag_tbl[] = {
1353
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1354
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1355
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1356
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1357
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1358
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1359
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1360
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1361
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1362
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1363
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1364
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1365
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1366
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1367
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1368
        { 0, 0, 0, 0 }
1369
};
1370

    
1371
static void target_to_host_termios (void *dst, const void *src)
1372
{
1373
    struct host_termios *host = dst;
1374
    const struct target_termios *target = src;
1375
    
1376
    host->c_iflag = 
1377
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1378
    host->c_oflag = 
1379
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1380
    host->c_cflag = 
1381
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1382
    host->c_lflag = 
1383
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1384
    host->c_line = target->c_line;
1385
    
1386
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
1387
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
1388
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
1389
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
1390
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
1391
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
1392
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
1393
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
1394
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
1395
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
1396
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
1397
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
1398
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
1399
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
1400
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
1401
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
1402
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
1403
}
1404
  
1405
static void host_to_target_termios (void *dst, const void *src)
1406
{
1407
    struct target_termios *target = dst;
1408
    const struct host_termios *host = src;
1409

    
1410
    target->c_iflag = 
1411
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1412
    target->c_oflag = 
1413
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1414
    target->c_cflag = 
1415
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1416
    target->c_lflag = 
1417
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1418
    target->c_line = host->c_line;
1419
  
1420
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1421
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1422
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1423
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1424
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1425
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1426
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1427
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1428
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1429
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1430
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1431
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1432
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1433
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1434
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1435
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1436
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1437
}
1438

    
1439
StructEntry struct_termios_def = {
1440
    .convert = { host_to_target_termios, target_to_host_termios },
1441
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1442
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1443
};
1444

    
1445
static bitmask_transtbl mmap_flags_tbl[] = {
1446
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1447
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1448
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1449
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1450
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1451
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1452
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1453
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1454
        { 0, 0, 0, 0 }
1455
};
1456

    
1457
static bitmask_transtbl fcntl_flags_tbl[] = {
1458
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1459
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1460
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1461
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1462
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1463
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1464
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1465
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1466
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1467
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1468
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1469
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1470
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1471
#if defined(O_DIRECT)
1472
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1473
#endif
1474
        { 0, 0, 0, 0 }
1475
};
1476

    
1477
#if defined(TARGET_I386)
1478

    
1479
/* NOTE: there is really one LDT for all the threads */
1480
uint8_t *ldt_table;
1481

    
1482
static int read_ldt(target_ulong ptr, unsigned long bytecount)
1483
{
1484
    int size;
1485
    void *p;
1486

    
1487
    if (!ldt_table)
1488
        return 0;
1489
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1490
    if (size > bytecount)
1491
        size = bytecount;
1492
    p = lock_user(ptr, size, 0);
1493
    /* ??? Shoudl this by byteswapped?  */
1494
    memcpy(p, ldt_table, size);
1495
    unlock_user(p, ptr, size);
1496
    return size;
1497
}
1498

    
1499
/* XXX: add locking support */
1500
static int write_ldt(CPUX86State *env, 
1501
                     target_ulong ptr, unsigned long bytecount, int oldmode)
1502
{
1503
    struct target_modify_ldt_ldt_s ldt_info;
1504
    struct target_modify_ldt_ldt_s *target_ldt_info;
1505
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1506
    int seg_not_present, useable;
1507
    uint32_t *lp, entry_1, entry_2;
1508

    
1509
    if (bytecount != sizeof(ldt_info))
1510
        return -EINVAL;
1511
    lock_user_struct(target_ldt_info, ptr, 1);
1512
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1513
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1514
    ldt_info.limit = tswap32(target_ldt_info->limit);
1515
    ldt_info.flags = tswap32(target_ldt_info->flags);
1516
    unlock_user_struct(target_ldt_info, ptr, 0);
1517
    
1518
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1519
        return -EINVAL;
1520
    seg_32bit = ldt_info.flags & 1;
1521
    contents = (ldt_info.flags >> 1) & 3;
1522
    read_exec_only = (ldt_info.flags >> 3) & 1;
1523
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1524
    seg_not_present = (ldt_info.flags >> 5) & 1;
1525
    useable = (ldt_info.flags >> 6) & 1;
1526

    
1527
    if (contents == 3) {
1528
        if (oldmode)
1529
            return -EINVAL;
1530
        if (seg_not_present == 0)
1531
            return -EINVAL;
1532
    }
1533
    /* allocate the LDT */
1534
    if (!ldt_table) {
1535
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1536
        if (!ldt_table)
1537
            return -ENOMEM;
1538
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1539
        env->ldt.base = h2g(ldt_table);
1540
        env->ldt.limit = 0xffff;
1541
    }
1542

    
1543
    /* NOTE: same code as Linux kernel */
1544
    /* Allow LDTs to be cleared by the user. */
1545
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1546
        if (oldmode ||
1547
            (contents == 0                &&
1548
             read_exec_only == 1        &&
1549
             seg_32bit == 0                &&
1550
             limit_in_pages == 0        &&
1551
             seg_not_present == 1        &&
1552
             useable == 0 )) {
1553
            entry_1 = 0;
1554
            entry_2 = 0;
1555
            goto install;
1556
        }
1557
    }
1558
    
1559
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1560
        (ldt_info.limit & 0x0ffff);
1561
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1562
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1563
        (ldt_info.limit & 0xf0000) |
1564
        ((read_exec_only ^ 1) << 9) |
1565
        (contents << 10) |
1566
        ((seg_not_present ^ 1) << 15) |
1567
        (seg_32bit << 22) |
1568
        (limit_in_pages << 23) |
1569
        0x7000;
1570
    if (!oldmode)
1571
        entry_2 |= (useable << 20);
1572

    
1573
    /* Install the new entry ...  */
1574
install:
1575
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1576
    lp[0] = tswap32(entry_1);
1577
    lp[1] = tswap32(entry_2);
1578
    return 0;
1579
}
1580

    
1581
/* specific and weird i386 syscalls */
1582
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1583
{
1584
    int ret = -ENOSYS;
1585
    
1586
    switch (func) {
1587
    case 0:
1588
        ret = read_ldt(ptr, bytecount);
1589
        break;
1590
    case 1:
1591
        ret = write_ldt(env, ptr, bytecount, 1);
1592
        break;
1593
    case 0x11:
1594
        ret = write_ldt(env, ptr, bytecount, 0);
1595
        break;
1596
    }
1597
    return ret;
1598
}
1599

    
1600
#endif /* defined(TARGET_I386) */
1601

    
1602
/* this stack is the equivalent of the kernel stack associated with a
1603
   thread/process */
1604
#define NEW_STACK_SIZE 8192
1605

    
1606
static int clone_func(void *arg)
1607
{
1608
    CPUState *env = arg;
1609
    cpu_loop(env);
1610
    /* never exits */
1611
    return 0;
1612
}
1613

    
1614
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1615
{
1616
    int ret;
1617
    TaskState *ts;
1618
    uint8_t *new_stack;
1619
    CPUState *new_env;
1620
    
1621
    if (flags & CLONE_VM) {
1622
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1623
        memset(ts, 0, sizeof(TaskState));
1624
        new_stack = ts->stack;
1625
        ts->used = 1;
1626
        /* add in task state list */
1627
        ts->next = first_task_state;
1628
        first_task_state = ts;
1629
        /* we create a new CPU instance. */
1630
        new_env = cpu_init();
1631
        memcpy(new_env, env, sizeof(CPUState));
1632
#if defined(TARGET_I386)
1633
        if (!newsp)
1634
            newsp = env->regs[R_ESP];
1635
        new_env->regs[R_ESP] = newsp;
1636
        new_env->regs[R_EAX] = 0;
1637
#elif defined(TARGET_ARM)
1638
        if (!newsp)
1639
            newsp = env->regs[13];
1640
        new_env->regs[13] = newsp;
1641
        new_env->regs[0] = 0;
1642
#elif defined(TARGET_SPARC)
1643
        if (!newsp)
1644
            newsp = env->regwptr[22];
1645
        new_env->regwptr[22] = newsp;
1646
        new_env->regwptr[0] = 0;
1647
        /* XXXXX */
1648
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1649
#elif defined(TARGET_M68K)
1650
        if (!newsp)
1651
            newsp = env->aregs[7];
1652
        new_env->aregs[7] = newsp;
1653
        new_env->dregs[0] = 0;
1654
        /* ??? is this sufficient?  */
1655
#elif defined(TARGET_MIPS)
1656
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1657
#elif defined(TARGET_PPC)
1658
        if (!newsp)
1659
            newsp = env->gpr[1];
1660
        new_env->gpr[1] = newsp;
1661
        { 
1662
            int i;
1663
            for (i = 7; i < 32; i++)
1664
                new_env->gpr[i] = 0;
1665
        }
1666
#elif defined(TARGET_SH4)
1667
        if (!newsp)
1668
          newsp = env->gregs[15];
1669
        new_env->gregs[15] = newsp;
1670
        /* XXXXX */
1671
#else
1672
#error unsupported target CPU
1673
#endif
1674
        new_env->opaque = ts;
1675
#ifdef __ia64__
1676
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1677
#else
1678
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1679
#endif
1680
    } else {
1681
        /* if no CLONE_VM, we consider it is a fork */
1682
        if ((flags & ~CSIGNAL) != 0)
1683
            return -EINVAL;
1684
        ret = fork();
1685
    }
1686
    return ret;
1687
}
1688

    
1689
static long do_fcntl(int fd, int cmd, target_ulong arg)
1690
{
1691
    struct flock fl;
1692
    struct target_flock *target_fl;
1693
    long ret;
1694

    
1695
    switch(cmd) {
1696
    case TARGET_F_GETLK:
1697
        ret = fcntl(fd, cmd, &fl);
1698
        if (ret == 0) {
1699
            lock_user_struct(target_fl, arg, 0);
1700
            target_fl->l_type = tswap16(fl.l_type);
1701
            target_fl->l_whence = tswap16(fl.l_whence);
1702
            target_fl->l_start = tswapl(fl.l_start);
1703
            target_fl->l_len = tswapl(fl.l_len);
1704
            target_fl->l_pid = tswapl(fl.l_pid);
1705
            unlock_user_struct(target_fl, arg, 1);
1706
        }
1707
        break;
1708
        
1709
    case TARGET_F_SETLK:
1710
    case TARGET_F_SETLKW:
1711
        lock_user_struct(target_fl, arg, 1);
1712
        fl.l_type = tswap16(target_fl->l_type);
1713
        fl.l_whence = tswap16(target_fl->l_whence);
1714
        fl.l_start = tswapl(target_fl->l_start);
1715
        fl.l_len = tswapl(target_fl->l_len);
1716
        fl.l_pid = tswapl(target_fl->l_pid);
1717
        unlock_user_struct(target_fl, arg, 0);
1718
        ret = fcntl(fd, cmd, &fl);
1719
        break;
1720
        
1721
    case TARGET_F_GETLK64:
1722
    case TARGET_F_SETLK64:
1723
    case TARGET_F_SETLKW64:
1724
        ret = -1;
1725
        errno = EINVAL;
1726
        break;
1727

    
1728
    case F_GETFL:
1729
        ret = fcntl(fd, cmd, arg);
1730
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1731
        break;
1732

    
1733
    case F_SETFL:
1734
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1735
        break;
1736

    
1737
    default:
1738
        ret = fcntl(fd, cmd, arg);
1739
        break;
1740
    }
1741
    return ret;
1742
}
1743

    
1744
#ifdef USE_UID16
1745

    
1746
static inline int high2lowuid(int uid)
1747
{
1748
    if (uid > 65535)
1749
        return 65534;
1750
    else
1751
        return uid;
1752
}
1753

    
1754
static inline int high2lowgid(int gid)
1755
{
1756
    if (gid > 65535)
1757
        return 65534;
1758
    else
1759
        return gid;
1760
}
1761

    
1762
static inline int low2highuid(int uid)
1763
{
1764
    if ((int16_t)uid == -1)
1765
        return -1;
1766
    else
1767
        return uid;
1768
}
1769

    
1770
static inline int low2highgid(int gid)
1771
{
1772
    if ((int16_t)gid == -1)
1773
        return -1;
1774
    else
1775
        return gid;
1776
}
1777

    
1778
#endif /* USE_UID16 */
1779

    
1780
void syscall_init(void)
1781
{
1782
    IOCTLEntry *ie;
1783
    const argtype *arg_type;
1784
    int size;
1785

    
1786
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1787
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1788
#include "syscall_types.h"
1789
#undef STRUCT
1790
#undef STRUCT_SPECIAL
1791

    
1792
    /* we patch the ioctl size if necessary. We rely on the fact that
1793
       no ioctl has all the bits at '1' in the size field */
1794
    ie = ioctl_entries;
1795
    while (ie->target_cmd != 0) {
1796
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1797
            TARGET_IOC_SIZEMASK) {
1798
            arg_type = ie->arg_type;
1799
            if (arg_type[0] != TYPE_PTR) {
1800
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1801
                        ie->target_cmd);
1802
                exit(1);
1803
            }
1804
            arg_type++;
1805
            size = thunk_type_size(arg_type, 0);
1806
            ie->target_cmd = (ie->target_cmd & 
1807
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1808
                (size << TARGET_IOC_SIZESHIFT);
1809
        }
1810
        /* automatic consistency check if same arch */
1811
#if defined(__i386__) && defined(TARGET_I386)
1812
        if (ie->target_cmd != ie->host_cmd) {
1813
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1814
                    ie->target_cmd, ie->host_cmd);
1815
        }
1816
#endif
1817
        ie++;
1818
    }
1819
}
1820

    
1821
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1822
{
1823
#ifdef TARGET_WORDS_BIG_ENDIAN
1824
    return ((uint64_t)word0 << 32) | word1;
1825
#else
1826
    return ((uint64_t)word1 << 32) | word0;
1827
#endif
1828
}
1829

    
1830
#ifdef TARGET_NR_truncate64
1831
static inline long target_truncate64(void *cpu_env, const char *arg1,
1832
                                     long arg2, long arg3, long arg4)
1833
{
1834
#ifdef TARGET_ARM
1835
    if (((CPUARMState *)cpu_env)->eabi)
1836
      {
1837
        arg2 = arg3;
1838
        arg3 = arg4;
1839
      }
1840
#endif
1841
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1842
}
1843
#endif
1844

    
1845
#ifdef TARGET_NR_ftruncate64
1846
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1847
                                      long arg3, long arg4)
1848
{
1849
#ifdef TARGET_ARM
1850
    if (((CPUARMState *)cpu_env)->eabi)
1851
      {
1852
        arg2 = arg3;
1853
        arg3 = arg4;
1854
      }
1855
#endif
1856
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1857
}
1858
#endif
1859

    
1860
static inline void target_to_host_timespec(struct timespec *host_ts,
1861
                                           target_ulong target_addr)
1862
{
1863
    struct target_timespec *target_ts;
1864

    
1865
    lock_user_struct(target_ts, target_addr, 1);
1866
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
1867
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1868
    unlock_user_struct(target_ts, target_addr, 0);
1869
}
1870

    
1871
static inline void host_to_target_timespec(target_ulong target_addr,
1872
                                           struct timespec *host_ts)
1873
{
1874
    struct target_timespec *target_ts;
1875

    
1876
    lock_user_struct(target_ts, target_addr, 0);
1877
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
1878
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
1879
    unlock_user_struct(target_ts, target_addr, 1);
1880
}
1881

    
1882
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1883
                long arg4, long arg5, long arg6)
1884
{
1885
    long ret;
1886
    struct stat st;
1887
    struct statfs stfs;
1888
    void *p;
1889
    
1890
#ifdef DEBUG
1891
    gemu_log("syscall %d", num);
1892
#endif
1893
    switch(num) {
1894
    case TARGET_NR_exit:
1895
#ifdef HAVE_GPROF
1896
        _mcleanup();
1897
#endif
1898
        gdb_exit(cpu_env, arg1);
1899
        /* XXX: should free thread stack and CPU env */
1900
        _exit(arg1);
1901
        ret = 0; /* avoid warning */
1902
        break;
1903
    case TARGET_NR_read:
1904
        page_unprotect_range(arg2, arg3);
1905
        p = lock_user(arg2, arg3, 0);
1906
        ret = get_errno(read(arg1, p, arg3));
1907
        unlock_user(p, arg2, ret);
1908
        break;
1909
    case TARGET_NR_write:
1910
        p = lock_user(arg2, arg3, 1);
1911
        ret = get_errno(write(arg1, p, arg3));
1912
        unlock_user(p, arg2, 0);
1913
        break;
1914
    case TARGET_NR_open:
1915
        p = lock_user_string(arg1);
1916
        ret = get_errno(open(path(p),
1917
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
1918
                             arg3));
1919
        unlock_user(p, arg1, 0);
1920
        break;
1921
    case TARGET_NR_close:
1922
        ret = get_errno(close(arg1));
1923
        break;
1924
    case TARGET_NR_brk:
1925
        ret = do_brk(arg1);
1926
        break;
1927
    case TARGET_NR_fork:
1928
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1929
        break;
1930
    case TARGET_NR_waitpid:
1931
        {
1932
            int status;
1933
            ret = get_errno(waitpid(arg1, &status, arg3));
1934
            if (!is_error(ret) && arg2)
1935
                tput32(arg2, status);
1936
        }
1937
        break;
1938
    case TARGET_NR_creat:
1939
        p = lock_user_string(arg1);
1940
        ret = get_errno(creat(p, arg2));
1941
        unlock_user(p, arg1, 0);
1942
        break;
1943
    case TARGET_NR_link:
1944
        {
1945
            void * p2;
1946
            p = lock_user_string(arg1);
1947
            p2 = lock_user_string(arg2);
1948
            ret = get_errno(link(p, p2));
1949
            unlock_user(p2, arg2, 0);
1950
            unlock_user(p, arg1, 0);
1951
        }
1952
        break;
1953
    case TARGET_NR_unlink:
1954
        p = lock_user_string(arg1);
1955
        ret = get_errno(unlink(p));
1956
        unlock_user(p, arg1, 0);
1957
        break;
1958
    case TARGET_NR_execve:
1959
        {
1960
            char **argp, **envp;
1961
            int argc, envc;
1962
            target_ulong gp;
1963
            target_ulong guest_argp;
1964
            target_ulong guest_envp;
1965
            target_ulong addr;
1966
            char **q;
1967

    
1968
            argc = 0;
1969
            guest_argp = arg2;
1970
            for (gp = guest_argp; tgetl(gp); gp++)
1971
                argc++;
1972
            envc = 0;
1973
            guest_envp = arg3;
1974
            for (gp = guest_envp; tgetl(gp); gp++)
1975
                envc++;
1976

    
1977
            argp = alloca((argc + 1) * sizeof(void *));
1978
            envp = alloca((envc + 1) * sizeof(void *));
1979

    
1980
            for (gp = guest_argp, q = argp; ;
1981
                  gp += sizeof(target_ulong), q++) {
1982
                addr = tgetl(gp);
1983
                if (!addr)
1984
                    break;
1985
                *q = lock_user_string(addr);
1986
            }
1987
            *q = NULL;
1988

    
1989
            for (gp = guest_envp, q = envp; ;
1990
                  gp += sizeof(target_ulong), q++) {
1991
                addr = tgetl(gp);
1992
                if (!addr)
1993
                    break;
1994
                *q = lock_user_string(addr);
1995
            }
1996
            *q = NULL;
1997

    
1998
            p = lock_user_string(arg1);
1999
            ret = get_errno(execve(p, argp, envp));
2000
            unlock_user(p, arg1, 0);
2001

    
2002
            for (gp = guest_argp, q = argp; *q;
2003
                  gp += sizeof(target_ulong), q++) {
2004
                addr = tgetl(gp);
2005
                unlock_user(*q, addr, 0);
2006
            }
2007
            for (gp = guest_envp, q = envp; *q;
2008
                  gp += sizeof(target_ulong), q++) {
2009
                addr = tgetl(gp);
2010
                unlock_user(*q, addr, 0);
2011
            }
2012
        }
2013
        break;
2014
    case TARGET_NR_chdir:
2015
        p = lock_user_string(arg1);
2016
        ret = get_errno(chdir(p));
2017
        unlock_user(p, arg1, 0);
2018
        break;
2019
#ifdef TARGET_NR_time
2020
    case TARGET_NR_time:
2021
        {
2022
            time_t host_time;
2023
            ret = get_errno(time(&host_time));
2024
            if (!is_error(ret) && arg1)
2025
                tputl(arg1, host_time);
2026
        }
2027
        break;
2028
#endif
2029
    case TARGET_NR_mknod:
2030
        p = lock_user_string(arg1);
2031
        ret = get_errno(mknod(p, arg2, arg3));
2032
        unlock_user(p, arg1, 0);
2033
        break;
2034
    case TARGET_NR_chmod:
2035
        p = lock_user_string(arg1);
2036
        ret = get_errno(chmod(p, arg2));
2037
        unlock_user(p, arg1, 0);
2038
        break;
2039
#ifdef TARGET_NR_break
2040
    case TARGET_NR_break:
2041
        goto unimplemented;
2042
#endif
2043
#ifdef TARGET_NR_oldstat
2044
    case TARGET_NR_oldstat:
2045
        goto unimplemented;
2046
#endif
2047
    case TARGET_NR_lseek:
2048
        ret = get_errno(lseek(arg1, arg2, arg3));
2049
        break;
2050
    case TARGET_NR_getpid:
2051
        ret = get_errno(getpid());
2052
        break;
2053
    case TARGET_NR_mount:
2054
        /* need to look at the data field */
2055
        goto unimplemented;
2056
    case TARGET_NR_umount:
2057
        p = lock_user_string(arg1);
2058
        ret = get_errno(umount(p));
2059
        unlock_user(p, arg1, 0);
2060
        break;
2061
    case TARGET_NR_stime:
2062
        {
2063
            time_t host_time;
2064
            host_time = tgetl(arg1);
2065
            ret = get_errno(stime(&host_time));
2066
        }
2067
        break;
2068
    case TARGET_NR_ptrace:
2069
        goto unimplemented;
2070
    case TARGET_NR_alarm:
2071
        ret = alarm(arg1);
2072
        break;
2073
#ifdef TARGET_NR_oldfstat
2074
    case TARGET_NR_oldfstat:
2075
        goto unimplemented;
2076
#endif
2077
    case TARGET_NR_pause:
2078
        ret = get_errno(pause());
2079
        break;
2080
    case TARGET_NR_utime:
2081
        {
2082
            struct utimbuf tbuf, *host_tbuf;
2083
            struct target_utimbuf *target_tbuf;
2084
            if (arg2) {
2085
                lock_user_struct(target_tbuf, arg2, 1);
2086
                tbuf.actime = tswapl(target_tbuf->actime);
2087
                tbuf.modtime = tswapl(target_tbuf->modtime);
2088
                unlock_user_struct(target_tbuf, arg2, 0);
2089
                host_tbuf = &tbuf;
2090
            } else {
2091
                host_tbuf = NULL;
2092
            }
2093
            p = lock_user_string(arg1);
2094
            ret = get_errno(utime(p, host_tbuf));
2095
            unlock_user(p, arg1, 0);
2096
        }
2097
        break;
2098
    case TARGET_NR_utimes:
2099
        {
2100
            struct timeval *tvp, tv[2];
2101
            if (arg2) {
2102
                target_to_host_timeval(&tv[0], arg2);
2103
                target_to_host_timeval(&tv[1],
2104
                    arg2 + sizeof (struct target_timeval));
2105
                tvp = tv;
2106
            } else {
2107
                tvp = NULL;
2108
            }
2109
            p = lock_user_string(arg1);
2110
            ret = get_errno(utimes(p, tvp));
2111
            unlock_user(p, arg1, 0);
2112
        }
2113
        break;
2114
#ifdef TARGET_NR_stty
2115
    case TARGET_NR_stty:
2116
        goto unimplemented;
2117
#endif
2118
#ifdef TARGET_NR_gtty
2119
    case TARGET_NR_gtty:
2120
        goto unimplemented;
2121
#endif
2122
    case TARGET_NR_access:
2123
        p = lock_user_string(arg1);
2124
        ret = get_errno(access(p, arg2));
2125
        unlock_user(p, arg1, 0);
2126
        break;
2127
    case TARGET_NR_nice:
2128
        ret = get_errno(nice(arg1));
2129
        break;
2130
#ifdef TARGET_NR_ftime
2131
    case TARGET_NR_ftime:
2132
        goto unimplemented;
2133
#endif
2134
    case TARGET_NR_sync:
2135
        sync();
2136
        ret = 0;
2137
        break;
2138
    case TARGET_NR_kill:
2139
        ret = get_errno(kill(arg1, arg2));
2140
        break;
2141
    case TARGET_NR_rename:
2142
        {
2143
            void *p2;
2144
            p = lock_user_string(arg1);
2145
            p2 = lock_user_string(arg2);
2146
            ret = get_errno(rename(p, p2));
2147
            unlock_user(p2, arg2, 0);
2148
            unlock_user(p, arg1, 0);
2149
        }
2150
        break;
2151
    case TARGET_NR_mkdir:
2152
        p = lock_user_string(arg1);
2153
        ret = get_errno(mkdir(p, arg2));
2154
        unlock_user(p, arg1, 0);
2155
        break;
2156
    case TARGET_NR_rmdir:
2157
        p = lock_user_string(arg1);
2158
        ret = get_errno(rmdir(p));
2159
        unlock_user(p, arg1, 0);
2160
        break;
2161
    case TARGET_NR_dup:
2162
        ret = get_errno(dup(arg1));
2163
        break;
2164
    case TARGET_NR_pipe:
2165
        {
2166
            int host_pipe[2];
2167
            ret = get_errno(pipe(host_pipe));
2168
            if (!is_error(ret)) {
2169
                tput32(arg1, host_pipe[0]);
2170
                tput32(arg1 + 4, host_pipe[1]);
2171
            }
2172
        }
2173
        break;
2174
    case TARGET_NR_times:
2175
        {
2176
            struct target_tms *tmsp;
2177
            struct tms tms;
2178
            ret = get_errno(times(&tms));
2179
            if (arg1) {
2180
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2181
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2182
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2183
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2184
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2185
            }
2186
            if (!is_error(ret))
2187
                ret = host_to_target_clock_t(ret);
2188
        }
2189
        break;
2190
#ifdef TARGET_NR_prof
2191
    case TARGET_NR_prof:
2192
        goto unimplemented;
2193
#endif
2194
    case TARGET_NR_signal:
2195
        goto unimplemented;
2196

    
2197
    case TARGET_NR_acct:
2198
        p = lock_user_string(arg1);
2199
        ret = get_errno(acct(path(p)));
2200
        unlock_user(p, arg1, 0);
2201
        break;
2202
    case TARGET_NR_umount2:
2203
        p = lock_user_string(arg1);
2204
        ret = get_errno(umount2(p, arg2));
2205
        unlock_user(p, arg1, 0);
2206
        break;
2207
#ifdef TARGET_NR_lock
2208
    case TARGET_NR_lock:
2209
        goto unimplemented;
2210
#endif
2211
    case TARGET_NR_ioctl:
2212
        ret = do_ioctl(arg1, arg2, arg3);
2213
        break;
2214
    case TARGET_NR_fcntl:
2215
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
2216
        break;
2217
#ifdef TARGET_NR_mpx
2218
    case TARGET_NR_mpx:
2219
        goto unimplemented;
2220
#endif
2221
    case TARGET_NR_setpgid:
2222
        ret = get_errno(setpgid(arg1, arg2));
2223
        break;
2224
#ifdef TARGET_NR_ulimit
2225
    case TARGET_NR_ulimit:
2226
        goto unimplemented;
2227
#endif
2228
#ifdef TARGET_NR_oldolduname
2229
    case TARGET_NR_oldolduname:
2230
        goto unimplemented;
2231
#endif
2232
    case TARGET_NR_umask:
2233
        ret = get_errno(umask(arg1));
2234
        break;
2235
    case TARGET_NR_chroot:
2236
        p = lock_user_string(arg1);
2237
        ret = get_errno(chroot(p));
2238
        unlock_user(p, arg1, 0);
2239
        break;
2240
    case TARGET_NR_ustat:
2241
        goto unimplemented;
2242
    case TARGET_NR_dup2:
2243
        ret = get_errno(dup2(arg1, arg2));
2244
        break;
2245
    case TARGET_NR_getppid:
2246
        ret = get_errno(getppid());
2247
        break;
2248
    case TARGET_NR_getpgrp:
2249
        ret = get_errno(getpgrp());
2250
        break;
2251
    case TARGET_NR_setsid:
2252
        ret = get_errno(setsid());
2253
        break;
2254
    case TARGET_NR_sigaction:
2255
        {
2256
        #if !defined(TARGET_MIPS)
2257
            struct target_old_sigaction *old_act;
2258
            struct target_sigaction act, oact, *pact;
2259
            if (arg2) {
2260
                lock_user_struct(old_act, arg2, 1);
2261
                act._sa_handler = old_act->_sa_handler;
2262
                target_siginitset(&act.sa_mask, old_act->sa_mask);
2263
                act.sa_flags = old_act->sa_flags;
2264
                act.sa_restorer = old_act->sa_restorer;
2265
                unlock_user_struct(old_act, arg2, 0);
2266
                pact = &act;
2267
            } else {
2268
                pact = NULL;
2269
            }
2270
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2271
            if (!is_error(ret) && arg3) {
2272
                lock_user_struct(old_act, arg3, 0);
2273
                old_act->_sa_handler = oact._sa_handler;
2274
                old_act->sa_mask = oact.sa_mask.sig[0];
2275
                old_act->sa_flags = oact.sa_flags;
2276
                old_act->sa_restorer = oact.sa_restorer;
2277
                unlock_user_struct(old_act, arg3, 1);
2278
            }
2279
        #else
2280
            struct target_sigaction act, oact, *pact, *old_act;
2281

    
2282
            if (arg2) {
2283
                lock_user_struct(old_act, arg2, 1);
2284
                act._sa_handler = old_act->_sa_handler;
2285
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
2286
                act.sa_flags = old_act->sa_flags;
2287
                unlock_user_struct(old_act, arg2, 0);
2288
                pact = &act;
2289
            } else {
2290
                pact = NULL;
2291
            }
2292

    
2293
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2294

    
2295
            if (!is_error(ret) && arg3) {
2296
                lock_user_struct(old_act, arg3, 0);
2297
                old_act->_sa_handler = oact._sa_handler;
2298
                old_act->sa_flags = oact.sa_flags;
2299
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
2300
                old_act->sa_mask.sig[1] = 0;
2301
                old_act->sa_mask.sig[2] = 0;
2302
                old_act->sa_mask.sig[3] = 0;
2303
                unlock_user_struct(old_act, arg3, 1);
2304
            }
2305
        #endif
2306
        }
2307
        break;
2308
    case TARGET_NR_rt_sigaction:
2309
        {
2310
            struct target_sigaction *act;
2311
            struct target_sigaction *oact;
2312

    
2313
            if (arg2)
2314
                lock_user_struct(act, arg2, 1);
2315
            else
2316
                act = NULL;
2317
            if (arg3)
2318
                lock_user_struct(oact, arg3, 0);
2319
            else
2320
                oact = NULL;
2321
            ret = get_errno(do_sigaction(arg1, act, oact));
2322
            if (arg2)
2323
                unlock_user_struct(act, arg2, 0);
2324
            if (arg3)
2325
                unlock_user_struct(oact, arg3, 1);
2326
        }
2327
        break;
2328
    case TARGET_NR_sgetmask:
2329
        {
2330
            sigset_t cur_set;
2331
            target_ulong target_set;
2332
            sigprocmask(0, NULL, &cur_set);
2333
            host_to_target_old_sigset(&target_set, &cur_set);
2334
            ret = target_set;
2335
        }
2336
        break;
2337
    case TARGET_NR_ssetmask:
2338
        {
2339
            sigset_t set, oset, cur_set;
2340
            target_ulong target_set = arg1;
2341
            sigprocmask(0, NULL, &cur_set);
2342
            target_to_host_old_sigset(&set, &target_set);
2343
            sigorset(&set, &set, &cur_set);
2344
            sigprocmask(SIG_SETMASK, &set, &oset);
2345
            host_to_target_old_sigset(&target_set, &oset);
2346
            ret = target_set;
2347
        }
2348
        break;
2349
    case TARGET_NR_sigprocmask:
2350
        {
2351
            int how = arg1;
2352
            sigset_t set, oldset, *set_ptr;
2353
            
2354
            if (arg2) {
2355
                switch(how) {
2356
                case TARGET_SIG_BLOCK:
2357
                    how = SIG_BLOCK;
2358
                    break;
2359
                case TARGET_SIG_UNBLOCK:
2360
                    how = SIG_UNBLOCK;
2361
                    break;
2362
                case TARGET_SIG_SETMASK:
2363
                    how = SIG_SETMASK;
2364
                    break;
2365
                default:
2366
                    ret = -EINVAL;
2367
                    goto fail;
2368
                }
2369
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2370
                target_to_host_old_sigset(&set, p);
2371
                unlock_user(p, arg2, 0);
2372
                set_ptr = &set;
2373
            } else {
2374
                how = 0;
2375
                set_ptr = NULL;
2376
            }
2377
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2378
            if (!is_error(ret) && arg3) {
2379
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2380
                host_to_target_old_sigset(p, &oldset);
2381
                unlock_user(p, arg3, sizeof(target_sigset_t));
2382
            }
2383
        }
2384
        break;
2385
    case TARGET_NR_rt_sigprocmask:
2386
        {
2387
            int how = arg1;
2388
            sigset_t set, oldset, *set_ptr;
2389
            
2390
            if (arg2) {
2391
                switch(how) {
2392
                case TARGET_SIG_BLOCK:
2393
                    how = SIG_BLOCK;
2394
                    break;
2395
                case TARGET_SIG_UNBLOCK:
2396
                    how = SIG_UNBLOCK;
2397
                    break;
2398
                case TARGET_SIG_SETMASK:
2399
                    how = SIG_SETMASK;
2400
                    break;
2401
                default:
2402
                    ret = -EINVAL;
2403
                    goto fail;
2404
                }
2405
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2406
                target_to_host_sigset(&set, p);
2407
                unlock_user(p, arg2, 0);
2408
                set_ptr = &set;
2409
            } else {
2410
                how = 0;
2411
                set_ptr = NULL;
2412
            }
2413
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2414
            if (!is_error(ret) && arg3) {
2415
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2416
                host_to_target_sigset(p, &oldset);
2417
                unlock_user(p, arg3, sizeof(target_sigset_t));
2418
            }
2419
        }
2420
        break;
2421
    case TARGET_NR_sigpending:
2422
        {
2423
            sigset_t set;
2424
            ret = get_errno(sigpending(&set));
2425
            if (!is_error(ret)) {
2426
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2427
                host_to_target_old_sigset(p, &set);
2428
                unlock_user(p, arg1, sizeof(target_sigset_t));
2429
            }
2430
        }
2431
        break;
2432
    case TARGET_NR_rt_sigpending:
2433
        {
2434
            sigset_t set;
2435
            ret = get_errno(sigpending(&set));
2436
            if (!is_error(ret)) {
2437
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2438
                host_to_target_sigset(p, &set);
2439
                unlock_user(p, arg1, sizeof(target_sigset_t));
2440
            }
2441
        }
2442
        break;
2443
    case TARGET_NR_sigsuspend:
2444
        {
2445
            sigset_t set;
2446
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2447
            target_to_host_old_sigset(&set, p);
2448
            unlock_user(p, arg1, 0);
2449
            ret = get_errno(sigsuspend(&set));
2450
        }
2451
        break;
2452
    case TARGET_NR_rt_sigsuspend:
2453
        {
2454
            sigset_t set;
2455
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2456
            target_to_host_sigset(&set, p);
2457
            unlock_user(p, arg1, 0);
2458
            ret = get_errno(sigsuspend(&set));
2459
        }
2460
        break;
2461
    case TARGET_NR_rt_sigtimedwait:
2462
        {
2463
            sigset_t set;
2464
            struct timespec uts, *puts;
2465
            siginfo_t uinfo;
2466
            
2467
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2468
            target_to_host_sigset(&set, p);
2469
            unlock_user(p, arg1, 0);
2470
            if (arg3) {
2471
                puts = &uts;
2472
                target_to_host_timespec(puts, arg3);
2473
            } else {
2474
                puts = NULL;
2475
            }
2476
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2477
            if (!is_error(ret) && arg2) {
2478
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
2479
                host_to_target_siginfo(p, &uinfo);
2480
                unlock_user(p, arg2, sizeof(target_sigset_t));
2481
            }
2482
        }
2483
        break;
2484
    case TARGET_NR_rt_sigqueueinfo:
2485
        {
2486
            siginfo_t uinfo;
2487
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
2488
            target_to_host_siginfo(&uinfo, p);
2489
            unlock_user(p, arg1, 0);
2490
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2491
        }
2492
        break;
2493
    case TARGET_NR_sigreturn:
2494
        /* NOTE: ret is eax, so not transcoding must be done */
2495
        ret = do_sigreturn(cpu_env);
2496
        break;
2497
    case TARGET_NR_rt_sigreturn:
2498
        /* NOTE: ret is eax, so not transcoding must be done */
2499
        ret = do_rt_sigreturn(cpu_env);
2500
        break;
2501
    case TARGET_NR_sethostname:
2502
        p = lock_user_string(arg1);
2503
        ret = get_errno(sethostname(p, arg2));
2504
        unlock_user(p, arg1, 0);
2505
        break;
2506
    case TARGET_NR_setrlimit:
2507
        {
2508
            /* XXX: convert resource ? */
2509
            int resource = arg1;
2510
            struct target_rlimit *target_rlim;
2511
            struct rlimit rlim;
2512
            lock_user_struct(target_rlim, arg2, 1);
2513
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2514
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
2515
            unlock_user_struct(target_rlim, arg2, 0);
2516
            ret = get_errno(setrlimit(resource, &rlim));
2517
        }
2518
        break;
2519
    case TARGET_NR_getrlimit:
2520
        {
2521
            /* XXX: convert resource ? */
2522
            int resource = arg1;
2523
            struct target_rlimit *target_rlim;
2524
            struct rlimit rlim;
2525
            
2526
            ret = get_errno(getrlimit(resource, &rlim));
2527
            if (!is_error(ret)) {
2528
                lock_user_struct(target_rlim, arg2, 0);
2529
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2530
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
2531
                unlock_user_struct(target_rlim, arg2, 1);
2532
            }
2533
        }
2534
        break;
2535
    case TARGET_NR_getrusage:
2536
        {
2537
            struct rusage rusage;
2538
            ret = get_errno(getrusage(arg1, &rusage));
2539
            if (!is_error(ret)) {
2540
                host_to_target_rusage(arg2, &rusage);
2541
            }
2542
        }
2543
        break;
2544
    case TARGET_NR_gettimeofday:
2545
        {
2546
            struct timeval tv;
2547
            ret = get_errno(gettimeofday(&tv, NULL));
2548
            if (!is_error(ret)) {
2549
                host_to_target_timeval(arg1, &tv);
2550
            }
2551
        }
2552
        break;
2553
    case TARGET_NR_settimeofday:
2554
        {
2555
            struct timeval tv;
2556
            target_to_host_timeval(&tv, arg1);
2557
            ret = get_errno(settimeofday(&tv, NULL));
2558
        }
2559
        break;
2560
#ifdef TARGET_NR_select
2561
    case TARGET_NR_select:
2562
        {
2563
            struct target_sel_arg_struct *sel;
2564
            target_ulong inp, outp, exp, tvp;
2565
            long nsel;
2566

    
2567
            lock_user_struct(sel, arg1, 1);
2568
            nsel = tswapl(sel->n);
2569
            inp = tswapl(sel->inp);
2570
            outp = tswapl(sel->outp);
2571
            exp = tswapl(sel->exp);
2572
            tvp = tswapl(sel->tvp);
2573
            unlock_user_struct(sel, arg1, 0);
2574
            ret = do_select(nsel, inp, outp, exp, tvp);
2575
        }
2576
        break;
2577
#endif
2578
    case TARGET_NR_symlink:
2579
        {
2580
            void *p2;
2581
            p = lock_user_string(arg1);
2582
            p2 = lock_user_string(arg2);
2583
            ret = get_errno(symlink(p, p2));
2584
            unlock_user(p2, arg2, 0);
2585
            unlock_user(p, arg1, 0);
2586
        }
2587
        break;
2588
#ifdef TARGET_NR_oldlstat
2589
    case TARGET_NR_oldlstat:
2590
        goto unimplemented;
2591
#endif
2592
    case TARGET_NR_readlink:
2593
        {
2594
            void *p2;
2595
            p = lock_user_string(arg1);
2596
            p2 = lock_user(arg2, arg3, 0);
2597
            ret = get_errno(readlink(path(p), p2, arg3));
2598
            unlock_user(p2, arg2, ret);
2599
            unlock_user(p, arg1, 0);
2600
        }
2601
        break;
2602
    case TARGET_NR_uselib:
2603
        goto unimplemented;
2604
    case TARGET_NR_swapon:
2605
        p = lock_user_string(arg1);
2606
        ret = get_errno(swapon(p, arg2));
2607
        unlock_user(p, arg1, 0);
2608
        break;
2609
    case TARGET_NR_reboot:
2610
        goto unimplemented;
2611
    case TARGET_NR_readdir:
2612
        goto unimplemented;
2613
    case TARGET_NR_mmap:
2614
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
2615
        {
2616
            target_ulong *v;
2617
            target_ulong v1, v2, v3, v4, v5, v6;
2618
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2619
            v1 = tswapl(v[0]);
2620
            v2 = tswapl(v[1]);
2621
            v3 = tswapl(v[2]);
2622
            v4 = tswapl(v[3]);
2623
            v5 = tswapl(v[4]);
2624
            v6 = tswapl(v[5]);
2625
            unlock_user(v, arg1, 0);
2626
            ret = get_errno(target_mmap(v1, v2, v3, 
2627
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
2628
                                        v5, v6));
2629
        }
2630
#else
2631
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2632
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2633
                                    arg5,
2634
                                    arg6));
2635
#endif
2636
        break;
2637
#ifdef TARGET_NR_mmap2
2638
    case TARGET_NR_mmap2:
2639
#if defined(TARGET_SPARC)
2640
#define MMAP_SHIFT 12
2641
#else
2642
#define MMAP_SHIFT TARGET_PAGE_BITS
2643
#endif
2644
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2645
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2646
                                    arg5,
2647
                                    arg6 << MMAP_SHIFT));
2648
        break;
2649
#endif
2650
    case TARGET_NR_munmap:
2651
        ret = get_errno(target_munmap(arg1, arg2));
2652
        break;
2653
    case TARGET_NR_mprotect:
2654
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
2655
        break;
2656
    case TARGET_NR_mremap:
2657
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2658
        break;
2659
        /* ??? msync/mlock/munlock are broken for softmmu.  */
2660
    case TARGET_NR_msync:
2661
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
2662
        break;
2663
    case TARGET_NR_mlock:
2664
        ret = get_errno(mlock(g2h(arg1), arg2));
2665
        break;
2666
    case TARGET_NR_munlock:
2667
        ret = get_errno(munlock(g2h(arg1), arg2));
2668
        break;
2669
    case TARGET_NR_mlockall:
2670
        ret = get_errno(mlockall(arg1));
2671
        break;
2672
    case TARGET_NR_munlockall:
2673
        ret = get_errno(munlockall());
2674
        break;
2675
    case TARGET_NR_truncate:
2676
        p = lock_user_string(arg1);
2677
        ret = get_errno(truncate(p, arg2));
2678
        unlock_user(p, arg1, 0);
2679
        break;
2680
    case TARGET_NR_ftruncate:
2681
        ret = get_errno(ftruncate(arg1, arg2));
2682
        break;
2683
    case TARGET_NR_fchmod:
2684
        ret = get_errno(fchmod(arg1, arg2));
2685
        break;
2686
    case TARGET_NR_getpriority:
2687
        ret = get_errno(getpriority(arg1, arg2));
2688
        break;
2689
    case TARGET_NR_setpriority:
2690
        ret = get_errno(setpriority(arg1, arg2, arg3));
2691
        break;
2692
#ifdef TARGET_NR_profil
2693
    case TARGET_NR_profil:
2694
        goto unimplemented;
2695
#endif
2696
    case TARGET_NR_statfs:
2697
        p = lock_user_string(arg1);
2698
        ret = get_errno(statfs(path(p), &stfs));
2699
        unlock_user(p, arg1, 0);
2700
    convert_statfs:
2701
        if (!is_error(ret)) {
2702
            struct target_statfs *target_stfs;
2703
            
2704
            lock_user_struct(target_stfs, arg2, 0);
2705
            /* ??? put_user is probably wrong.  */
2706
            put_user(stfs.f_type, &target_stfs->f_type);
2707
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2708
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2709
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2710
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2711
            put_user(stfs.f_files, &target_stfs->f_files);
2712
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2713
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2714
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2715
            unlock_user_struct(target_stfs, arg2, 1);
2716
        }
2717
        break;
2718
    case TARGET_NR_fstatfs:
2719
        ret = get_errno(fstatfs(arg1, &stfs));
2720
        goto convert_statfs;
2721
#ifdef TARGET_NR_statfs64
2722
    case TARGET_NR_statfs64:
2723
        p = lock_user_string(arg1);
2724
        ret = get_errno(statfs(path(p), &stfs));
2725
        unlock_user(p, arg1, 0);
2726
    convert_statfs64:
2727
        if (!is_error(ret)) {
2728
            struct target_statfs64 *target_stfs;
2729
            
2730
            lock_user_struct(target_stfs, arg3, 0);
2731
            /* ??? put_user is probably wrong.  */
2732
            put_user(stfs.f_type, &target_stfs->f_type);
2733
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2734
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2735
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2736
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2737
            put_user(stfs.f_files, &target_stfs->f_files);
2738
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2739
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2740
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2741
            unlock_user_struct(target_stfs, arg3, 0);
2742
        }
2743
        break;
2744
    case TARGET_NR_fstatfs64:
2745
        ret = get_errno(fstatfs(arg1, &stfs));
2746
        goto convert_statfs64;
2747
#endif
2748
#ifdef TARGET_NR_ioperm
2749
    case TARGET_NR_ioperm:
2750
        goto unimplemented;
2751
#endif
2752
    case TARGET_NR_socketcall:
2753
        ret = do_socketcall(arg1, arg2);
2754
        break;
2755

    
2756
#ifdef TARGET_NR_accept
2757
    case TARGET_NR_accept:
2758
        ret = do_socketcallwrapper(SOCKOP_accept, arg1, arg2, arg3, arg4, arg5, arg6);
2759
        break;
2760
#endif
2761
#ifdef TARGET_NR_bind
2762
    case TARGET_NR_bind:
2763
        ret = do_bind(arg1, arg2, arg3);
2764
        break;
2765
#endif
2766
#ifdef TARGET_NR_connect
2767
    case TARGET_NR_connect:
2768
        ret = do_connect(arg1, arg2, arg3);
2769
        break;
2770
#endif
2771
#ifdef TARGET_NR_getpeername
2772
    case TARGET_NR_getpeername:
2773
        ret = do_socketcallwrapper(SOCKOP_getpeername, arg1, arg2, arg3, arg4, arg5, arg6);
2774
        break;
2775
#endif
2776
#ifdef TARGET_NR_getsockname
2777
    case TARGET_NR_getsockname:
2778
        ret = do_socketcallwrapper(SOCKOP_getsockname, arg1, arg2, arg3, arg4, arg5, arg6);
2779
        break;
2780
#endif
2781
#ifdef TARGET_NR_getsockopt
2782
    case TARGET_NR_getsockopt:
2783
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
2784
        break;
2785
#endif
2786
#ifdef TARGET_NR_listen
2787
    case TARGET_NR_listen:
2788
        ret = do_socketcallwrapper(SOCKOP_listen, arg1, arg2, arg3, arg4, arg5, arg6);
2789
        break;
2790
#endif
2791
#ifdef TARGET_NR_recv
2792
    case TARGET_NR_recv:
2793
        ret = do_socketcallwrapper(SOCKOP_recv, arg1, arg2, arg3, arg4, arg5, arg6);
2794
        break;
2795
#endif
2796
#ifdef TARGET_NR_recvfrom
2797
    case TARGET_NR_recvfrom:
2798
        ret = do_socketcallwrapper(SOCKOP_recvfrom, arg1, arg2, arg3, arg4, arg5, arg6);
2799
        break;
2800
#endif
2801
#ifdef TARGET_NR_recvmsg
2802
    case TARGET_NR_recvmsg:
2803
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
2804
        break;
2805
#endif
2806
#ifdef TARGET_NR_send
2807
    case TARGET_NR_send:
2808
        ret = do_socketcallwrapper(SOCKOP_send, arg1, arg2, arg3, arg4, arg5, arg6);
2809
        break;
2810
#endif
2811
#ifdef TARGET_NR_sendmsg
2812
    case TARGET_NR_sendmsg:
2813
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
2814
        break;
2815
#endif
2816
#ifdef TARGET_NR_sendto
2817
    case TARGET_NR_sendto:
2818
        ret = do_socketcallwrapper(SOCKOP_sendto, arg1, arg2, arg3, arg4, arg5, arg6);
2819
        break;
2820
#endif
2821
#ifdef TARGET_NR_shutdown
2822
    case TARGET_NR_shutdown:
2823
        ret = do_socketcallwrapper(SOCKOP_shutdown, arg1, arg2, arg3, arg4, arg5, arg6);
2824
        break;
2825
#endif
2826
#ifdef TARGET_NR_socket
2827
    case TARGET_NR_socket:
2828
        ret = do_socket(arg1, arg2, arg3);
2829
        break;
2830
#endif
2831
#ifdef TARGET_NR_socketpair
2832
    case TARGET_NR_socketpair:
2833
        ret = do_socketcallwrapper(SOCKOP_socketpair, arg1, arg2, arg3, arg4, arg5, arg6);
2834
        break;
2835
#endif
2836
#ifdef TARGET_NR_setsockopt
2837
    case TARGET_NR_setsockopt:
2838
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
2839
        break;
2840
#endif
2841
        
2842
    case TARGET_NR_syslog:
2843
        goto unimplemented;
2844
    case TARGET_NR_setitimer:
2845
        {
2846
            struct itimerval value, ovalue, *pvalue;
2847

    
2848
            if (arg2) {
2849
                pvalue = &value;
2850
                target_to_host_timeval(&pvalue->it_interval, 
2851
                                       arg2);
2852
                target_to_host_timeval(&pvalue->it_value, 
2853
                                       arg2 + sizeof(struct target_timeval));
2854
            } else {
2855
                pvalue = NULL;
2856
            }
2857
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2858
            if (!is_error(ret) && arg3) {
2859
                host_to_target_timeval(arg3,
2860
                                       &ovalue.it_interval);
2861
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
2862
                                       &ovalue.it_value);
2863
            }
2864
        }
2865
        break;
2866
    case TARGET_NR_getitimer:
2867
        {
2868
            struct itimerval value;
2869
            
2870
            ret = get_errno(getitimer(arg1, &value));
2871
            if (!is_error(ret) && arg2) {
2872
                host_to_target_timeval(arg2,
2873
                                       &value.it_interval);
2874
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
2875
                                       &value.it_value);
2876
            }
2877
        }
2878
        break;
2879
    case TARGET_NR_stat:
2880
        p = lock_user_string(arg1);
2881
        ret = get_errno(stat(path(p), &st));
2882
        unlock_user(p, arg1, 0);
2883
        goto do_stat;
2884
    case TARGET_NR_lstat:
2885
        p = lock_user_string(arg1);
2886
        ret = get_errno(lstat(path(p), &st));
2887
        unlock_user(p, arg1, 0);
2888
        goto do_stat;
2889
    case TARGET_NR_fstat:
2890
        {
2891
            ret = get_errno(fstat(arg1, &st));
2892
        do_stat:
2893
            if (!is_error(ret)) {
2894
                struct target_stat *target_st;
2895
                
2896
                lock_user_struct(target_st, arg2, 0);
2897
                target_st->st_dev = tswap16(st.st_dev);
2898
                target_st->st_ino = tswapl(st.st_ino);
2899
#if defined(TARGET_PPC)
2900
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2901
                target_st->st_uid = tswap32(st.st_uid);
2902
                target_st->st_gid = tswap32(st.st_gid);
2903
#else
2904
                target_st->st_mode = tswap16(st.st_mode);
2905
                target_st->st_uid = tswap16(st.st_uid);
2906
                target_st->st_gid = tswap16(st.st_gid);
2907
#endif
2908
                target_st->st_nlink = tswap16(st.st_nlink);
2909
                target_st->st_rdev = tswap16(st.st_rdev);
2910
                target_st->st_size = tswapl(st.st_size);
2911
                target_st->st_blksize = tswapl(st.st_blksize);
2912
                target_st->st_blocks = tswapl(st.st_blocks);
2913
                target_st->target_st_atime = tswapl(st.st_atime);
2914
                target_st->target_st_mtime = tswapl(st.st_mtime);
2915
                target_st->target_st_ctime = tswapl(st.st_ctime);
2916
                unlock_user_struct(target_st, arg2, 1);
2917
            }
2918
        }
2919
        break;
2920
#ifdef TARGET_NR_olduname
2921
    case TARGET_NR_olduname:
2922
        goto unimplemented;
2923
#endif
2924
#ifdef TARGET_NR_iopl
2925
    case TARGET_NR_iopl:
2926
        goto unimplemented;
2927
#endif
2928
    case TARGET_NR_vhangup:
2929
        ret = get_errno(vhangup());
2930
        break;
2931
#ifdef TARGET_NR_idle
2932
    case TARGET_NR_idle:
2933
        goto unimplemented;
2934
#endif
2935
#ifdef TARGET_NR_syscall
2936
    case TARGET_NR_syscall:
2937
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
2938
            break;
2939
#endif
2940
    case TARGET_NR_wait4:
2941
        {
2942
            int status;
2943
            target_long status_ptr = arg2;
2944
            struct rusage rusage, *rusage_ptr;
2945
            target_ulong target_rusage = arg4;
2946
            if (target_rusage)
2947
                rusage_ptr = &rusage;
2948
            else
2949
                rusage_ptr = NULL;
2950
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2951
            if (!is_error(ret)) {
2952
                if (status_ptr)
2953
                    tputl(status_ptr, status);
2954
                if (target_rusage) {
2955
                    host_to_target_rusage(target_rusage, &rusage);
2956
                }
2957
            }
2958
        }
2959
        break;
2960
    case TARGET_NR_swapoff:
2961
        p = lock_user_string(arg1);
2962
        ret = get_errno(swapoff(p));
2963
        unlock_user(p, arg1, 0);
2964
        break;
2965
    case TARGET_NR_sysinfo:
2966
        {
2967
            struct target_sysinfo *target_value;
2968
            struct sysinfo value;
2969
            ret = get_errno(sysinfo(&value));
2970
            if (!is_error(ret) && arg1)
2971
            {
2972
                /* ??? __put_user is probably wrong.  */
2973
                lock_user_struct(target_value, arg1, 0);
2974
                __put_user(value.uptime, &target_value->uptime);
2975
                __put_user(value.loads[0], &target_value->loads[0]);
2976
                __put_user(value.loads[1], &target_value->loads[1]);
2977
                __put_user(value.loads[2], &target_value->loads[2]);
2978
                __put_user(value.totalram, &target_value->totalram);
2979
                __put_user(value.freeram, &target_value->freeram);
2980
                __put_user(value.sharedram, &target_value->sharedram);
2981
                __put_user(value.bufferram, &target_value->bufferram);
2982
                __put_user(value.totalswap, &target_value->totalswap);
2983
                __put_user(value.freeswap, &target_value->freeswap);
2984
                __put_user(value.procs, &target_value->procs);
2985
                __put_user(value.totalhigh, &target_value->totalhigh);
2986
                __put_user(value.freehigh, &target_value->freehigh);
2987
                __put_user(value.mem_unit, &target_value->mem_unit);
2988
                unlock_user_struct(target_value, arg1, 1);
2989
            }
2990
        }
2991
        break;
2992
    case TARGET_NR_ipc:
2993
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2994
        break;
2995
    case TARGET_NR_fsync:
2996
        ret = get_errno(fsync(arg1));
2997
        break;
2998
    case TARGET_NR_clone:
2999
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3000
        break;
3001
#ifdef __NR_exit_group
3002
        /* new thread calls */
3003
    case TARGET_NR_exit_group:
3004
        gdb_exit(cpu_env, arg1);
3005
        ret = get_errno(exit_group(arg1));
3006
        break;
3007
#endif
3008
    case TARGET_NR_setdomainname:
3009
        p = lock_user_string(arg1);
3010
        ret = get_errno(setdomainname(p, arg2));
3011
        unlock_user(p, arg1, 0);
3012
        break;
3013
    case TARGET_NR_uname:
3014
        /* no need to transcode because we use the linux syscall */
3015
        {
3016
            struct new_utsname * buf;
3017
    
3018
            lock_user_struct(buf, arg1, 0);
3019
            ret = get_errno(sys_uname(buf));
3020
            if (!is_error(ret)) {
3021
                /* Overrite the native machine name with whatever is being
3022
                   emulated. */
3023
                strcpy (buf->machine, UNAME_MACHINE);
3024
                /* Allow the user to override the reported release.  */
3025
                if (qemu_uname_release && *qemu_uname_release)
3026
                  strcpy (buf->release, qemu_uname_release);
3027
            }
3028
            unlock_user_struct(buf, arg1, 1);
3029
        }
3030
        break;
3031
#ifdef TARGET_I386
3032
    case TARGET_NR_modify_ldt:
3033
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3034
        break;
3035
    case TARGET_NR_vm86old:
3036
        goto unimplemented;
3037
    case TARGET_NR_vm86:
3038
        ret = do_vm86(cpu_env, arg1, arg2);
3039
        break;
3040
#endif
3041
    case TARGET_NR_adjtimex:
3042
        goto unimplemented;
3043
    case TARGET_NR_create_module:
3044
    case TARGET_NR_init_module:
3045
    case TARGET_NR_delete_module:
3046
    case TARGET_NR_get_kernel_syms:
3047
        goto unimplemented;
3048
    case TARGET_NR_quotactl:
3049
        goto unimplemented;
3050
    case TARGET_NR_getpgid:
3051
        ret = get_errno(getpgid(arg1));
3052
        break;
3053
    case TARGET_NR_fchdir:
3054
        ret = get_errno(fchdir(arg1));
3055
        break;
3056
    case TARGET_NR_bdflush:
3057
        goto unimplemented;
3058
    case TARGET_NR_sysfs:
3059
        goto unimplemented;
3060
    case TARGET_NR_personality:
3061
        ret = get_errno(personality(arg1));
3062
        break;
3063
    case TARGET_NR_afs_syscall:
3064
        goto unimplemented;
3065
    case TARGET_NR__llseek:
3066
        {
3067
#if defined (__x86_64__)
3068
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
3069
            tput64(arg4, ret);
3070
#else
3071
            int64_t res;
3072
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
3073
            tput64(arg4, res);
3074
#endif
3075
        }
3076
        break;
3077
    case TARGET_NR_getdents:
3078
#if TARGET_LONG_SIZE != 4
3079
        goto unimplemented;
3080
#warning not supported
3081
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
3082
        {
3083
            struct target_dirent *target_dirp;
3084
            struct dirent *dirp;
3085
            long count = arg3;
3086

    
3087
            dirp = malloc(count);
3088
            if (!dirp)
3089
                return -ENOMEM;
3090
            
3091
            ret = get_errno(sys_getdents(arg1, dirp, count));
3092
            if (!is_error(ret)) {
3093
                struct dirent *de;
3094
                struct target_dirent *tde;
3095
                int len = ret;
3096
                int reclen, treclen;
3097
                int count1, tnamelen;
3098

    
3099
                count1 = 0;
3100
                de = dirp;
3101
                target_dirp = lock_user(arg2, count, 0);
3102
                tde = target_dirp;
3103
                while (len > 0) {
3104
                    reclen = de->d_reclen;
3105
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
3106
                    tde->d_reclen = tswap16(treclen);
3107
                    tde->d_ino = tswapl(de->d_ino);
3108
                    tde->d_off = tswapl(de->d_off);
3109
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
3110
                    if (tnamelen > 256)
3111
                        tnamelen = 256;
3112
                    /* XXX: may not be correct */
3113
                    strncpy(tde->d_name, de->d_name, tnamelen);
3114
                    de = (struct dirent *)((char *)de + reclen);
3115
                    len -= reclen;
3116
                    tde = (struct dirent *)((char *)tde + treclen);
3117
                    count1 += treclen;
3118
                }
3119
                ret = count1;
3120
            }
3121
            unlock_user(target_dirp, arg2, ret);
3122
            free(dirp);
3123
        }
3124
#else
3125
        {
3126
            struct dirent *dirp;
3127
            long count = arg3;
3128

    
3129
            dirp = lock_user(arg2, count, 0);
3130
            ret = get_errno(sys_getdents(arg1, dirp, count));
3131
            if (!is_error(ret)) {
3132
                struct dirent *de;
3133
                int len = ret;
3134
                int reclen;
3135
                de = dirp;
3136
                while (len > 0) {
3137
                    reclen = de->d_reclen;
3138
                    if (reclen > len)
3139
                        break;
3140
                    de->d_reclen = tswap16(reclen);
3141
                    tswapls(&de->d_ino);
3142
                    tswapls(&de->d_off);
3143
                    de = (struct dirent *)((char *)de + reclen);
3144
                    len -= reclen;
3145
                }
3146
            }
3147
            unlock_user(dirp, arg2, ret);
3148
        }
3149
#endif
3150
        break;
3151
#ifdef TARGET_NR_getdents64
3152
    case TARGET_NR_getdents64:
3153
        {
3154
            struct dirent64 *dirp;
3155
            long count = arg3;
3156
            dirp = lock_user(arg2, count, 0);
3157
            ret = get_errno(sys_getdents64(arg1, dirp, count));
3158
            if (!is_error(ret)) {
3159
                struct dirent64 *de;
3160
                int len = ret;
3161
                int reclen;
3162
                de = dirp;
3163
                while (len > 0) {
3164
                    reclen = de->d_reclen;
3165
                    if (reclen > len)
3166
                        break;
3167
                    de->d_reclen = tswap16(reclen);
3168
                    tswap64s(&de->d_ino);
3169
                    tswap64s(&de->d_off);
3170
                    de = (struct dirent64 *)((char *)de + reclen);
3171
                    len -= reclen;
3172
                }
3173
            }
3174
            unlock_user(dirp, arg2, ret);
3175
        }
3176
        break;
3177
#endif /* TARGET_NR_getdents64 */
3178
    case TARGET_NR__newselect:
3179
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
3180
        break;
3181
    case TARGET_NR_poll:
3182
        {
3183
            struct target_pollfd *target_pfd;
3184
            unsigned int nfds = arg2;
3185
            int timeout = arg3;
3186
            struct pollfd *pfd;
3187
            unsigned int i;
3188

    
3189
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3190
            pfd = alloca(sizeof(struct pollfd) * nfds);
3191
            for(i = 0; i < nfds; i++) {
3192
                pfd[i].fd = tswap32(target_pfd[i].fd);
3193
                pfd[i].events = tswap16(target_pfd[i].events);
3194
            }
3195
            ret = get_errno(poll(pfd, nfds, timeout));
3196
            if (!is_error(ret)) {
3197
                for(i = 0; i < nfds; i++) {
3198
                    target_pfd[i].revents = tswap16(pfd[i].revents);
3199
                }
3200
                ret += nfds * (sizeof(struct target_pollfd)
3201
                               - sizeof(struct pollfd));
3202
            }
3203
            unlock_user(target_pfd, arg1, ret);
3204
        }
3205
        break;
3206
    case TARGET_NR_flock:
3207
        /* NOTE: the flock constant seems to be the same for every
3208
           Linux platform */
3209
        ret = get_errno(flock(arg1, arg2));
3210
        break;
3211
    case TARGET_NR_readv:
3212
        {
3213
            int count = arg3;
3214
            struct iovec *vec;
3215

    
3216
            vec = alloca(count * sizeof(struct iovec));
3217
            lock_iovec(vec, arg2, count, 0);
3218
            ret = get_errno(readv(arg1, vec, count));
3219
            unlock_iovec(vec, arg2, count, 1);
3220
        }
3221
        break;
3222
    case TARGET_NR_writev:
3223
        {
3224
            int count = arg3;
3225
            struct iovec *vec;
3226

    
3227
            vec = alloca(count * sizeof(struct iovec));
3228
            lock_iovec(vec, arg2, count, 1);
3229
            ret = get_errno(writev(arg1, vec, count));
3230
            unlock_iovec(vec, arg2, count, 0);
3231
        }
3232
        break;
3233
    case TARGET_NR_getsid:
3234
        ret = get_errno(getsid(arg1));
3235
        break;
3236
    case TARGET_NR_fdatasync:
3237
        ret = get_errno(fdatasync(arg1));
3238
        break;
3239
    case TARGET_NR__sysctl:
3240
        /* We don't implement this, but ENODIR is always a safe
3241
           return value. */
3242
        return -ENOTDIR;
3243
    case TARGET_NR_sched_setparam:
3244
        {
3245
            struct sched_param *target_schp;
3246
            struct sched_param schp;
3247

    
3248
            lock_user_struct(target_schp, arg2, 1);
3249
            schp.sched_priority = tswap32(target_schp->sched_priority);
3250
            unlock_user_struct(target_schp, arg2, 0);
3251
            ret = get_errno(sched_setparam(arg1, &schp));
3252
        }
3253
        break;
3254
    case TARGET_NR_sched_getparam:
3255
        {
3256
            struct sched_param *target_schp;
3257
            struct sched_param schp;
3258
            ret = get_errno(sched_getparam(arg1, &schp));
3259
            if (!is_error(ret)) {
3260
                lock_user_struct(target_schp, arg2, 0);
3261
                target_schp->sched_priority = tswap32(schp.sched_priority);
3262
                unlock_user_struct(target_schp, arg2, 1);
3263
            }
3264
        }
3265
        break;
3266
    case TARGET_NR_sched_setscheduler:
3267
        {
3268
            struct sched_param *target_schp;
3269
            struct sched_param schp;
3270
            lock_user_struct(target_schp, arg3, 1);
3271
            schp.sched_priority = tswap32(target_schp->sched_priority);
3272
            unlock_user_struct(target_schp, arg3, 0);
3273
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3274
        }
3275
        break;
3276
    case TARGET_NR_sched_getscheduler:
3277
        ret = get_errno(sched_getscheduler(arg1));
3278
        break;
3279
    case TARGET_NR_sched_yield:
3280
        ret = get_errno(sched_yield());
3281
        break;
3282
    case TARGET_NR_sched_get_priority_max:
3283
        ret = get_errno(sched_get_priority_max(arg1));
3284
        break;
3285
    case TARGET_NR_sched_get_priority_min:
3286
        ret = get_errno(sched_get_priority_min(arg1));
3287
        break;
3288
    case TARGET_NR_sched_rr_get_interval:
3289
        {
3290
            struct timespec ts;
3291
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
3292
            if (!is_error(ret)) {
3293
                host_to_target_timespec(arg2, &ts);
3294
            }
3295
        }
3296
        break;
3297
    case TARGET_NR_nanosleep:
3298
        {
3299
            struct timespec req, rem;
3300
            target_to_host_timespec(&req, arg1);
3301
            ret = get_errno(nanosleep(&req, &rem));
3302
            if (is_error(ret) && arg2) {
3303
                host_to_target_timespec(arg2, &rem);
3304
            }
3305
        }
3306
        break;
3307
    case TARGET_NR_query_module:
3308
        goto unimplemented;
3309
    case TARGET_NR_nfsservctl:
3310
        goto unimplemented;
3311
    case TARGET_NR_prctl:
3312
        goto unimplemented;
3313
#ifdef TARGET_NR_pread
3314
    case TARGET_NR_pread:
3315
        page_unprotect_range(arg2, arg3);
3316
        p = lock_user(arg2, arg3, 0);
3317
        ret = get_errno(pread(arg1, p, arg3, arg4));
3318
        unlock_user(p, arg2, ret);
3319
        break;
3320
    case TARGET_NR_pwrite:
3321
        p = lock_user(arg2, arg3, 1);
3322
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
3323
        unlock_user(p, arg2, 0);
3324
        break;
3325
#endif
3326
    case TARGET_NR_getcwd:
3327
        p = lock_user(arg1, arg2, 0);
3328
        ret = get_errno(sys_getcwd1(p, arg2));
3329
        unlock_user(p, arg1, ret);
3330
        break;
3331
    case TARGET_NR_capget:
3332
        goto unimplemented;
3333
    case TARGET_NR_capset:
3334
        goto unimplemented;
3335
    case TARGET_NR_sigaltstack:
3336
        goto unimplemented;
3337
    case TARGET_NR_sendfile:
3338
        goto unimplemented;
3339
#ifdef TARGET_NR_getpmsg
3340
    case TARGET_NR_getpmsg:
3341
        goto unimplemented;
3342
#endif
3343
#ifdef TARGET_NR_putpmsg
3344
    case TARGET_NR_putpmsg:
3345
        goto unimplemented;
3346
#endif
3347
#ifdef TARGET_NR_vfork
3348
    case TARGET_NR_vfork:
3349
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3350
        break;
3351
#endif
3352
#ifdef TARGET_NR_ugetrlimit
3353
    case TARGET_NR_ugetrlimit:
3354
    {
3355
        struct rlimit rlim;
3356
        ret = get_errno(getrlimit(arg1, &rlim));
3357
        if (!is_error(ret)) {
3358
            struct target_rlimit *target_rlim;
3359
            lock_user_struct(target_rlim, arg2, 0);
3360
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3361
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
3362
            unlock_user_struct(target_rlim, arg2, 1);
3363
        }
3364
        break;
3365
    }
3366
#endif
3367
#ifdef TARGET_NR_truncate64
3368
    case TARGET_NR_truncate64:
3369
        p = lock_user_string(arg1);
3370
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3371
        unlock_user(p, arg1, 0);
3372
        break;
3373
#endif
3374
#ifdef TARGET_NR_ftruncate64
3375
    case TARGET_NR_ftruncate64:
3376
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3377
        break;
3378
#endif
3379
#ifdef TARGET_NR_stat64
3380
    case TARGET_NR_stat64:
3381
        p = lock_user_string(arg1);
3382
        ret = get_errno(stat(path(p), &st));
3383
        unlock_user(p, arg1, 0);
3384
        goto do_stat64;
3385
#endif
3386
#ifdef TARGET_NR_lstat64
3387
    case TARGET_NR_lstat64:
3388
        p = lock_user_string(arg1);
3389
        ret = get_errno(lstat(path(p), &st));
3390
        unlock_user(p, arg1, 0);
3391
        goto do_stat64;
3392
#endif
3393
#ifdef TARGET_NR_fstat64
3394
    case TARGET_NR_fstat64:
3395
        {
3396
            ret = get_errno(fstat(arg1, &st));
3397
        do_stat64:
3398
            if (!is_error(ret)) {
3399
#ifdef TARGET_ARM
3400
                if (((CPUARMState *)cpu_env)->eabi) {
3401
                    struct target_eabi_stat64 *target_st;
3402
                    lock_user_struct(target_st, arg2, 1);
3403
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
3404
                    /* put_user is probably wrong.  */
3405
                    put_user(st.st_dev, &target_st->st_dev);
3406
                    put_user(st.st_ino, &target_st->st_ino);
3407
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3408
                    put_user(st.st_ino, &target_st->__st_ino);
3409
#endif
3410
                    put_user(st.st_mode, &target_st->st_mode);
3411
                    put_user(st.st_nlink, &target_st->st_nlink);
3412
                    put_user(st.st_uid, &target_st->st_uid);
3413
                    put_user(st.st_gid, &target_st->st_gid);
3414
                    put_user(st.st_rdev, &target_st->st_rdev);
3415
                    /* XXX: better use of kernel struct */
3416
                    put_user(st.st_size, &target_st->st_size);
3417
                    put_user(st.st_blksize, &target_st->st_blksize);
3418
                    put_user(st.st_blocks, &target_st->st_blocks);
3419
                    put_user(st.st_atime, &target_st->target_st_atime);
3420
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3421
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3422
                    unlock_user_struct(target_st, arg2, 0);
3423
                } else
3424
#endif
3425
                {
3426
                    struct target_stat64 *target_st;
3427
                    lock_user_struct(target_st, arg2, 1);
3428
                    memset(target_st, 0, sizeof(struct target_stat64));
3429
                    /* ??? put_user is probably wrong.  */
3430
                    put_user(st.st_dev, &target_st->st_dev);
3431
                    put_user(st.st_ino, &target_st->st_ino);
3432
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3433
                    put_user(st.st_ino, &target_st->__st_ino);
3434
#endif
3435
                    put_user(st.st_mode, &target_st->st_mode);
3436
                    put_user(st.st_nlink, &target_st->st_nlink);
3437
                    put_user(st.st_uid, &target_st->st_uid);
3438
                    put_user(st.st_gid, &target_st->st_gid);
3439
                    put_user(st.st_rdev, &target_st->st_rdev);
3440
                    /* XXX: better use of kernel struct */
3441
                    put_user(st.st_size, &target_st->st_size);
3442
                    put_user(st.st_blksize, &target_st->st_blksize);
3443
                    put_user(st.st_blocks, &target_st->st_blocks);
3444
                    put_user(st.st_atime, &target_st->target_st_atime);
3445
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3446
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3447
                    unlock_user_struct(target_st, arg2, 0);
3448
                }
3449
            }
3450
        }
3451
        break;
3452
#endif
3453
#ifdef USE_UID16
3454
    case TARGET_NR_lchown:
3455
        p = lock_user_string(arg1);
3456
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3457
        unlock_user(p, arg1, 0);
3458
        break;
3459
    case TARGET_NR_getuid:
3460
        ret = get_errno(high2lowuid(getuid()));
3461
        break;
3462
    case TARGET_NR_getgid:
3463
        ret = get_errno(high2lowgid(getgid()));
3464
        break;
3465
    case TARGET_NR_geteuid:
3466
        ret = get_errno(high2lowuid(geteuid()));
3467
        break;
3468
    case TARGET_NR_getegid:
3469
        ret = get_errno(high2lowgid(getegid()));
3470
        break;
3471
    case TARGET_NR_setreuid:
3472
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3473
        break;
3474
    case TARGET_NR_setregid:
3475
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3476
        break;
3477
    case TARGET_NR_getgroups:
3478
        {
3479
            int gidsetsize = arg1;
3480
            uint16_t *target_grouplist;
3481
            gid_t *grouplist;
3482
            int i;
3483

    
3484
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3485
            ret = get_errno(getgroups(gidsetsize, grouplist));
3486
            if (!is_error(ret)) {
3487
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3488
                for(i = 0;i < gidsetsize; i++)
3489
                    target_grouplist[i] = tswap16(grouplist[i]);
3490
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
3491
            }
3492
        }
3493
        break;
3494
    case TARGET_NR_setgroups:
3495
        {
3496
            int gidsetsize = arg1;
3497
            uint16_t *target_grouplist;
3498
            gid_t *grouplist;
3499
            int i;
3500

    
3501
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3502
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3503
            for(i = 0;i < gidsetsize; i++)
3504
                grouplist[i] = tswap16(target_grouplist[i]);
3505
            unlock_user(target_grouplist, arg2, 0);
3506
            ret = get_errno(setgroups(gidsetsize, grouplist));
3507
        }
3508
        break;
3509
    case TARGET_NR_fchown:
3510
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3511
        break;
3512
#ifdef TARGET_NR_setresuid
3513
    case TARGET_NR_setresuid:
3514
        ret = get_errno(setresuid(low2highuid(arg1), 
3515
                                  low2highuid(arg2), 
3516
                                  low2highuid(arg3)));
3517
        break;
3518
#endif
3519
#ifdef TARGET_NR_getresuid
3520
    case TARGET_NR_getresuid:
3521
        {
3522
            uid_t ruid, euid, suid;
3523
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3524
            if (!is_error(ret)) {
3525
                tput16(arg1, tswap16(high2lowuid(ruid)));
3526
                tput16(arg2, tswap16(high2lowuid(euid)));
3527
                tput16(arg3, tswap16(high2lowuid(suid)));
3528
            }
3529
        }
3530
        break;
3531
#endif
3532
#ifdef TARGET_NR_getresgid
3533
    case TARGET_NR_setresgid:
3534
        ret = get_errno(setresgid(low2highgid(arg1), 
3535
                                  low2highgid(arg2), 
3536
                                  low2highgid(arg3)));
3537
        break;
3538
#endif
3539
#ifdef TARGET_NR_getresgid
3540
    case TARGET_NR_getresgid:
3541
        {
3542
            gid_t rgid, egid, sgid;
3543
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3544
            if (!is_error(ret)) {
3545
                tput16(arg1, tswap16(high2lowgid(rgid)));
3546
                tput16(arg2, tswap16(high2lowgid(egid)));
3547
                tput16(arg3, tswap16(high2lowgid(sgid)));
3548
            }
3549
        }
3550
        break;
3551
#endif
3552
    case TARGET_NR_chown:
3553
        p = lock_user_string(arg1);
3554
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3555
        unlock_user(p, arg1, 0);
3556
        break;
3557
    case TARGET_NR_setuid:
3558
        ret = get_errno(setuid(low2highuid(arg1)));
3559
        break;
3560
    case TARGET_NR_setgid:
3561
        ret = get_errno(setgid(low2highgid(arg1)));
3562
        break;
3563
    case TARGET_NR_setfsuid:
3564
        ret = get_errno(setfsuid(arg1));
3565
        break;
3566
    case TARGET_NR_setfsgid:
3567
        ret = get_errno(setfsgid(arg1));
3568
        break;
3569
#endif /* USE_UID16 */
3570

    
3571
#ifdef TARGET_NR_lchown32
3572
    case TARGET_NR_lchown32:
3573
        p = lock_user_string(arg1);
3574
        ret = get_errno(lchown(p, arg2, arg3));
3575
        unlock_user(p, arg1, 0);
3576
        break;
3577
#endif
3578
#ifdef TARGET_NR_getuid32
3579
    case TARGET_NR_getuid32:
3580
        ret = get_errno(getuid());
3581
        break;
3582
#endif
3583
#ifdef TARGET_NR_getgid32
3584
    case TARGET_NR_getgid32:
3585
        ret = get_errno(getgid());
3586
        break;
3587
#endif
3588
#ifdef TARGET_NR_geteuid32
3589
    case TARGET_NR_geteuid32:
3590
        ret = get_errno(geteuid());
3591
        break;
3592
#endif
3593
#ifdef TARGET_NR_getegid32
3594
    case TARGET_NR_getegid32:
3595
        ret = get_errno(getegid());
3596
        break;
3597
#endif
3598
#ifdef TARGET_NR_setreuid32
3599
    case TARGET_NR_setreuid32:
3600
        ret = get_errno(setreuid(arg1, arg2));
3601
        break;
3602
#endif
3603
#ifdef TARGET_NR_setregid32
3604
    case TARGET_NR_setregid32:
3605
        ret = get_errno(setregid(arg1, arg2));
3606
        break;
3607
#endif
3608
#ifdef TARGET_NR_getgroups32
3609
    case TARGET_NR_getgroups32:
3610
        {
3611
            int gidsetsize = arg1;
3612
            uint32_t *target_grouplist;
3613
            gid_t *grouplist;
3614
            int i;
3615

    
3616
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3617
            ret = get_errno(getgroups(gidsetsize, grouplist));
3618
            if (!is_error(ret)) {
3619
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3620
                for(i = 0;i < gidsetsize; i++)
3621
                    target_grouplist[i] = tswap32(grouplist[i]);
3622
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
3623
            }
3624
        }
3625
        break;
3626
#endif
3627
#ifdef TARGET_NR_setgroups32
3628
    case TARGET_NR_setgroups32:
3629
        {
3630
            int gidsetsize = arg1;
3631
            uint32_t *target_grouplist;
3632
            gid_t *grouplist;
3633
            int i;
3634
            
3635
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3636
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3637
            for(i = 0;i < gidsetsize; i++)
3638
                grouplist[i] = tswap32(target_grouplist[i]);
3639
            unlock_user(target_grouplist, arg2, 0);
3640
            ret = get_errno(setgroups(gidsetsize, grouplist));
3641
        }
3642
        break;
3643
#endif
3644
#ifdef TARGET_NR_fchown32
3645
    case TARGET_NR_fchown32:
3646
        ret = get_errno(fchown(arg1, arg2, arg3));
3647
        break;
3648
#endif
3649
#ifdef TARGET_NR_setresuid32
3650
    case TARGET_NR_setresuid32:
3651
        ret = get_errno(setresuid(arg1, arg2, arg3));
3652
        break;
3653
#endif
3654
#ifdef TARGET_NR_getresuid32
3655
    case TARGET_NR_getresuid32:
3656
        {
3657
            uid_t ruid, euid, suid;
3658
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3659
            if (!is_error(ret)) {
3660
                tput32(arg1, tswap32(ruid));
3661
                tput32(arg2, tswap32(euid));
3662
                tput32(arg3, tswap32(suid));
3663
            }
3664
        }
3665
        break;
3666
#endif
3667
#ifdef TARGET_NR_setresgid32
3668
    case TARGET_NR_setresgid32:
3669
        ret = get_errno(setresgid(arg1, arg2, arg3));
3670
        break;
3671
#endif
3672
#ifdef TARGET_NR_getresgid32
3673
    case TARGET_NR_getresgid32:
3674
        {
3675
            gid_t rgid, egid, sgid;
3676
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3677
            if (!is_error(ret)) {
3678
                tput32(arg1, tswap32(rgid));
3679
                tput32(arg2, tswap32(egid));
3680
                tput32(arg3, tswap32(sgid));
3681
            }
3682
        }
3683
        break;
3684
#endif
3685
#ifdef TARGET_NR_chown32
3686
    case TARGET_NR_chown32:
3687
        p = lock_user_string(arg1);
3688
        ret = get_errno(chown(p, arg2, arg3));
3689
        unlock_user(p, arg1, 0);
3690
        break;
3691
#endif
3692
#ifdef TARGET_NR_setuid32
3693
    case TARGET_NR_setuid32:
3694
        ret = get_errno(setuid(arg1));
3695
        break;
3696
#endif
3697
#ifdef TARGET_NR_setgid32
3698
    case TARGET_NR_setgid32:
3699
        ret = get_errno(setgid(arg1));
3700
        break;
3701
#endif
3702
#ifdef TARGET_NR_setfsuid32
3703
    case TARGET_NR_setfsuid32:
3704
        ret = get_errno(setfsuid(arg1));
3705
        break;
3706
#endif
3707
#ifdef TARGET_NR_setfsgid32
3708
    case TARGET_NR_setfsgid32:
3709
        ret = get_errno(setfsgid(arg1));
3710
        break;
3711
#endif
3712

    
3713
    case TARGET_NR_pivot_root:
3714
        goto unimplemented;
3715
#ifdef TARGET_NR_mincore
3716
    case TARGET_NR_mincore:
3717
        goto unimplemented;
3718
#endif
3719
#ifdef TARGET_NR_madvise
3720
    case TARGET_NR_madvise:
3721
        /* A straight passthrough may not be safe because qemu sometimes
3722
           turns private flie-backed mappings into anonymous mappings.
3723
           This will break MADV_DONTNEED.
3724
           This is a hint, so ignoring and returning success is ok.  */
3725
        ret = get_errno(0);
3726
        break;
3727
#endif
3728
#if TARGET_LONG_BITS == 32
3729
    case TARGET_NR_fcntl64:
3730
    {
3731
        struct flock64 fl;
3732
        struct target_flock64 *target_fl;
3733
#ifdef TARGET_ARM
3734
        struct target_eabi_flock64 *target_efl;
3735
#endif
3736

    
3737
        switch(arg2) {
3738
        case F_GETLK64:
3739
            ret = get_errno(fcntl(arg1, arg2, &fl));
3740
            if (ret == 0) {
3741
#ifdef TARGET_ARM
3742
                if (((CPUARMState *)cpu_env)->eabi) {
3743
                    lock_user_struct(target_efl, arg3, 0);
3744
                    target_efl->l_type = tswap16(fl.l_type);
3745
                    target_efl->l_whence = tswap16(fl.l_whence);
3746
                    target_efl->l_start = tswap64(fl.l_start);
3747
                    target_efl->l_len = tswap64(fl.l_len);
3748
                    target_efl->l_pid = tswapl(fl.l_pid);
3749
                    unlock_user_struct(target_efl, arg3, 1);
3750
                } else
3751
#endif
3752
                {
3753
                    lock_user_struct(target_fl, arg3, 0);
3754
                    target_fl->l_type = tswap16(fl.l_type);
3755
                    target_fl->l_whence = tswap16(fl.l_whence);
3756
                    target_fl->l_start = tswap64(fl.l_start);
3757
                    target_fl->l_len = tswap64(fl.l_len);
3758
                    target_fl->l_pid = tswapl(fl.l_pid);
3759
                    unlock_user_struct(target_fl, arg3, 1);
3760
                }
3761
            }
3762
            break;
3763

    
3764
        case F_SETLK64:
3765
        case F_SETLKW64:
3766
#ifdef TARGET_ARM
3767
            if (((CPUARMState *)cpu_env)->eabi) {
3768
                lock_user_struct(target_efl, arg3, 1);
3769
                fl.l_type = tswap16(target_efl->l_type);
3770
                fl.l_whence = tswap16(target_efl->l_whence);
3771
                fl.l_start = tswap64(target_efl->l_start);
3772
                fl.l_len = tswap64(target_efl->l_len);
3773
                fl.l_pid = tswapl(target_efl->l_pid);
3774
                unlock_user_struct(target_efl, arg3, 0);
3775
            } else
3776
#endif
3777
            {
3778
                lock_user_struct(target_fl, arg3, 1);
3779
                fl.l_type = tswap16(target_fl->l_type);
3780
                fl.l_whence = tswap16(target_fl->l_whence);
3781
                fl.l_start = tswap64(target_fl->l_start);
3782
                fl.l_len = tswap64(target_fl->l_len);
3783
                fl.l_pid = tswapl(target_fl->l_pid);
3784
                unlock_user_struct(target_fl, arg3, 0);
3785
            }
3786
            ret = get_errno(fcntl(arg1, arg2, &fl));
3787
            break;
3788
        default:
3789
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
3790
            break;
3791
        }
3792
        break;
3793
    }
3794
#endif
3795
#ifdef TARGET_NR_security
3796
    case TARGET_NR_security:
3797
        goto unimplemented;
3798
#endif
3799
#ifdef TARGET_NR_getpagesize
3800
    case TARGET_NR_getpagesize:
3801
        ret = TARGET_PAGE_SIZE;
3802
        break;
3803
#endif
3804
    case TARGET_NR_gettid:
3805
        ret = get_errno(gettid());
3806
        break;
3807
    case TARGET_NR_readahead:
3808
        goto unimplemented;
3809
#ifdef TARGET_NR_setxattr
3810
    case TARGET_NR_setxattr:
3811
    case TARGET_NR_lsetxattr:
3812
    case TARGET_NR_fsetxattr:
3813
    case TARGET_NR_getxattr:
3814
    case TARGET_NR_lgetxattr:
3815
    case TARGET_NR_fgetxattr:
3816
    case TARGET_NR_listxattr:
3817
    case TARGET_NR_llistxattr:
3818
    case TARGET_NR_flistxattr:
3819
    case TARGET_NR_removexattr:
3820
    case TARGET_NR_lremovexattr:
3821
    case TARGET_NR_fremovexattr:
3822
        goto unimplemented_nowarn;
3823
#endif
3824
#ifdef TARGET_NR_set_thread_area
3825
    case TARGET_NR_set_thread_area:
3826
    case TARGET_NR_get_thread_area:
3827
        goto unimplemented_nowarn;
3828
#endif
3829
#ifdef TARGET_NR_getdomainname
3830
    case TARGET_NR_getdomainname:
3831
        goto unimplemented_nowarn;
3832
#endif
3833
    default:
3834
    unimplemented:
3835
        gemu_log("qemu: Unsupported syscall: %d\n", num);
3836
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area) || defined(TARGET_NR_getdomainname)
3837
    unimplemented_nowarn:
3838
#endif
3839
        ret = -ENOSYS;
3840
        break;
3841
    }
3842
 fail:
3843
#ifdef DEBUG
3844
    gemu_log(" = %ld\n", ret);
3845
#endif
3846
    return ret;
3847
}
3848