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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
85
#undef _syscall2
86
#undef _syscall3
87
#undef _syscall4
88
#undef _syscall5
89
#undef _syscall6
90

    
91
#define _syscall0(type,name)                \
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type name (void)                        \
93
{                                        \
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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)                        \
111
{                                                                \
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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_accept(int fd, target_ulong target_addr,
841
                      target_ulong target_addrlen)
842
{
843
    socklen_t addrlen = tget32(target_addrlen);
844
    void *addr = alloca(target_addrlen);
845
    long ret;
846

    
847
    ret = get_errno(accept(fd, addr, &addrlen));
848
    if (!is_error(ret)) {
849
        host_to_target_sockaddr(target_addr, addr, addrlen);
850
        tput32(target_addrlen, addrlen);
851
    }
852
    return ret;
853
}
854

    
855
static long do_getpeername(int fd, target_ulong target_addr,
856
                           target_ulong target_addrlen)
857
{
858
    socklen_t addrlen = tget32(target_addrlen);
859
    void *addr = alloca(target_addrlen);
860
    long ret;
861

    
862
    ret = get_errno(getpeername(fd, addr, &addrlen));
863
    if (!is_error(ret)) {
864
        host_to_target_sockaddr(target_addr, addr, addrlen);
865
        tput32(target_addrlen, addrlen);
866
    }
867
    return ret;
868
}
869

    
870
static long do_getsockname(int fd, target_ulong target_addr,
871
                           target_ulong target_addrlen)
872
{
873
    socklen_t addrlen = tget32(target_addrlen);
874
    void *addr = alloca(target_addrlen);
875
    long ret;
876

    
877
    ret = get_errno(getsockname(fd, addr, &addrlen));
878
    if (!is_error(ret)) {
879
        host_to_target_sockaddr(target_addr, addr, addrlen);
880
        tput32(target_addrlen, addrlen);
881
    }
882
    return ret;
883
}
884

    
885
static long do_socketpair(int domain, int type, int protocol,
886
                          target_ulong target_tab)
887
{
888
    int tab[2];
889
    long ret;
890

    
891
    ret = get_errno(socketpair(domain, type, protocol, tab));
892
    if (!is_error(ret)) {
893
        tput32(target_tab, tab[0]);
894
        tput32(target_tab + 4, tab[1]);
895
    }
896
    return ret;
897
}
898

    
899
static long do_sendto(int fd, target_ulong msg, size_t len, int flags,
900
                      target_ulong target_addr, socklen_t addrlen)
901
{
902
    void *addr;
903
    void *host_msg;
904
    long ret;
905

    
906
    host_msg = lock_user(msg, len, 1);
907
    if (target_addr) {
908
        addr = alloca(addrlen);
909
        target_to_host_sockaddr(addr, target_addr, addrlen);
910
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
911
    } else {
912
        ret = get_errno(send(fd, host_msg, len, flags));
913
    }
914
    unlock_user(host_msg, msg, 0);
915
    return ret;
916
}
917

    
918
static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
919
                        target_ulong target_addr, target_ulong target_addrlen)
920
{
921
    socklen_t addrlen;
922
    void *addr;
923
    void *host_msg;
924
    long ret;
925

    
926
    host_msg = lock_user(msg, len, 0);
927
    if (target_addr) {
928
        addrlen = tget32(target_addrlen);
929
        addr = alloca(addrlen);
930
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
931
    } else {
932
        addr = NULL; /* To keep compiler quiet.  */
933
        ret = get_errno(recv(fd, host_msg, len, flags));
934
    }
935
    if (!is_error(ret)) {
936
        if (target_addr) {
937
            host_to_target_sockaddr(target_addr, addr, addrlen);
938
            tput32(target_addrlen, addrlen);
939
        }
940
        unlock_user(host_msg, msg, len);
941
    } else {
942
        unlock_user(host_msg, msg, 0);
943
    }
944
    return ret;
945
}
946

    
947
static long do_socketcall(int num, target_ulong vptr)
948
{
949
    long ret;
950
    const int n = sizeof(target_ulong);
951

    
952
    switch(num) {
953
    case SOCKOP_socket:
954
        {
955
            int domain = tgetl(vptr);
956
            int type = tgetl(vptr + n);
957
            int protocol = tgetl(vptr + 2 * n);
958
            ret = do_socket(domain, type, protocol);
959
        }
960
        break;
961
    case SOCKOP_bind:
962
        {
963
            int sockfd = tgetl(vptr);
964
            target_ulong target_addr = tgetl(vptr + n);
965
            socklen_t addrlen = tgetl(vptr + 2 * n);
966
            ret = do_bind(sockfd, target_addr, addrlen);
967
        }
968
        break;
969
    case SOCKOP_connect:
970
        {
971
            int sockfd = tgetl(vptr);
972
            target_ulong target_addr = tgetl(vptr + n);
973
            socklen_t addrlen = tgetl(vptr + 2 * n);
974
            ret = do_connect(sockfd, target_addr, addrlen);
975
        }
976
        break;
977
    case SOCKOP_listen:
978
        {
979
            int sockfd = tgetl(vptr);
980
            int backlog = tgetl(vptr + n);
981
            ret = get_errno(listen(sockfd, backlog));
982
        }
983
        break;
984
    case SOCKOP_accept:
985
        {
986
            int sockfd = tgetl(vptr);
987
            target_ulong target_addr = tgetl(vptr + n);
988
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
989
            ret = do_accept(sockfd, target_addr, target_addrlen);
990
        }
991
        break;
992
    case SOCKOP_getsockname:
993
        {
994
            int sockfd = tgetl(vptr);
995
            target_ulong target_addr = tgetl(vptr + n);
996
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
997
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
998
        }
999
        break;
1000
    case SOCKOP_getpeername:
1001
        {
1002
            int sockfd = tgetl(vptr);
1003
            target_ulong target_addr = tgetl(vptr + n);
1004
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1005
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1006
        }
1007
        break;
1008
    case SOCKOP_socketpair:
1009
        {
1010
            int domain = tgetl(vptr);
1011
            int type = tgetl(vptr + n);
1012
            int protocol = tgetl(vptr + 2 * n);
1013
            target_ulong tab = tgetl(vptr + 3 * n);
1014
            ret = do_socketpair(domain, type, protocol, tab);
1015
        }
1016
        break;
1017
    case SOCKOP_send:
1018
        {
1019
            int sockfd = tgetl(vptr);
1020
            target_ulong msg = tgetl(vptr + n);
1021
            size_t len = tgetl(vptr + 2 * n);
1022
            int flags = tgetl(vptr + 3 * n);
1023
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1024
        }
1025
        break;
1026
    case SOCKOP_recv:
1027
        {
1028
            int sockfd = tgetl(vptr);
1029
            target_ulong msg = tgetl(vptr + n);
1030
            size_t len = tgetl(vptr + 2 * n);
1031
            int flags = tgetl(vptr + 3 * n);
1032
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1033
        }
1034
        break;
1035
    case SOCKOP_sendto:
1036
        {
1037
            int sockfd = tgetl(vptr);
1038
            target_ulong msg = tgetl(vptr + n);
1039
            size_t len = tgetl(vptr + 2 * n);
1040
            int flags = tgetl(vptr + 3 * n);
1041
            target_ulong addr = tgetl(vptr + 4 * n);
1042
            socklen_t addrlen = tgetl(vptr + 5 * n);
1043
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1044
        }
1045
        break;
1046
    case SOCKOP_recvfrom:
1047
        {
1048
            int sockfd = tgetl(vptr);
1049
            target_ulong msg = tgetl(vptr + n);
1050
            size_t len = tgetl(vptr + 2 * n);
1051
            int flags = tgetl(vptr + 3 * n);
1052
            target_ulong addr = tgetl(vptr + 4 * n);
1053
            target_ulong addrlen = tgetl(vptr + 5 * n);
1054
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1055
        }
1056
        break;
1057
    case SOCKOP_shutdown:
1058
        {
1059
            int sockfd = tgetl(vptr);
1060
            int how = tgetl(vptr + n);
1061

    
1062
            ret = get_errno(shutdown(sockfd, how));
1063
        }
1064
        break;
1065
    case SOCKOP_sendmsg:
1066
    case SOCKOP_recvmsg:
1067
        {
1068
            int fd;
1069
            target_ulong target_msg;
1070
            int flags;
1071

    
1072
            fd = tgetl(vptr);
1073
            target_msg = tgetl(vptr + n);
1074
            flags = tgetl(vptr + 2 * n);
1075

    
1076
            ret = do_sendrecvmsg(fd, target_msg, flags, 
1077
                                 (num == SOCKOP_sendmsg));
1078
        }
1079
        break;
1080
    case SOCKOP_setsockopt:
1081
        {
1082
            int sockfd = tgetl(vptr);
1083
            int level = tgetl(vptr + n);
1084
            int optname = tgetl(vptr + 2 * n);
1085
            target_ulong optval = tgetl(vptr + 3 * n);
1086
            socklen_t optlen = tgetl(vptr + 4 * n);
1087

    
1088
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1089
        }
1090
        break;
1091
    case SOCKOP_getsockopt:
1092
        {
1093
            int sockfd = tgetl(vptr);
1094
            int level = tgetl(vptr + n);
1095
            int optname = tgetl(vptr + 2 * n);
1096
            target_ulong optval = tgetl(vptr + 3 * n);
1097
            target_ulong poptlen = tgetl(vptr + 4 * n);
1098

    
1099
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1100
        }
1101
        break;
1102
    default:
1103
        gemu_log("Unsupported socketcall: %d\n", num);
1104
        ret = -ENOSYS;
1105
        break;
1106
    }
1107
    return ret;
1108
}
1109

    
1110
#define N_SHM_REGIONS        32
1111

    
1112
static struct shm_region {
1113
    uint32_t        start;
1114
    uint32_t        size;
1115
} shm_regions[N_SHM_REGIONS];
1116

    
1117
/* ??? This only works with linear mappings.  */
1118
static long do_ipc(long call, long first, long second, long third,
1119
                   long ptr, long fifth)
1120
{
1121
    int version;
1122
    long ret = 0;
1123
    unsigned long raddr;
1124
    struct shmid_ds shm_info;
1125
    int i;
1126

    
1127
    version = call >> 16;
1128
    call &= 0xffff;
1129

    
1130
    switch (call) {
1131
    case IPCOP_shmat:
1132
        /* SHM_* flags are the same on all linux platforms */
1133
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1134
        if (is_error(ret))
1135
            break;
1136
        raddr = ret;
1137
        /* find out the length of the shared memory segment */
1138
        
1139
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1140
        if (is_error(ret)) {
1141
            /* can't get length, bail out */
1142
            shmdt((void *) raddr);
1143
            break;
1144
        }
1145
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1146
                       PAGE_VALID | PAGE_READ |
1147
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1148
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1149
            if (shm_regions[i].start == 0) {
1150
                shm_regions[i].start = raddr;
1151
                shm_regions[i].size = shm_info.shm_segsz;
1152
                break;
1153
            }
1154
        }
1155
        if (put_user(raddr, (uint32_t *)third))
1156
            return -EFAULT;
1157
        ret = 0;
1158
        break;
1159
    case IPCOP_shmdt:
1160
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1161
            if (shm_regions[i].start == ptr) {
1162
                shm_regions[i].start = 0;
1163
                page_set_flags(ptr, shm_regions[i].size, 0);
1164
                break;
1165
            }
1166
        }
1167
        ret = get_errno(shmdt((void *) ptr));
1168
        break;
1169

    
1170
    case IPCOP_shmget:
1171
        /* IPC_* flag values are the same on all linux platforms */
1172
        ret = get_errno(shmget(first, second, third));
1173
        break;
1174

    
1175
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1176
    case IPCOP_shmctl:
1177
        switch(second) {
1178
        case IPC_RMID:
1179
        case SHM_LOCK:
1180
        case SHM_UNLOCK:
1181
            ret = get_errno(shmctl(first, second, NULL));
1182
            break;
1183
        default:
1184
            goto unimplemented;
1185
        }
1186
        break;
1187
    default:
1188
    unimplemented:
1189
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1190
        ret = -ENOSYS;
1191
        break;
1192
    }
1193
    return ret;
1194
}
1195

    
1196
/* kernel structure types definitions */
1197
#define IFNAMSIZ        16
1198

    
1199
#define STRUCT(name, list...) STRUCT_ ## name,
1200
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1201
enum {
1202
#include "syscall_types.h"
1203
};
1204
#undef STRUCT
1205
#undef STRUCT_SPECIAL
1206

    
1207
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1208
#define STRUCT_SPECIAL(name)
1209
#include "syscall_types.h"
1210
#undef STRUCT
1211
#undef STRUCT_SPECIAL
1212

    
1213
typedef struct IOCTLEntry {
1214
    unsigned int target_cmd;
1215
    unsigned int host_cmd;
1216
    const char *name;
1217
    int access;
1218
    const argtype arg_type[5];
1219
} IOCTLEntry;
1220

    
1221
#define IOC_R 0x0001
1222
#define IOC_W 0x0002
1223
#define IOC_RW (IOC_R | IOC_W)
1224

    
1225
#define MAX_STRUCT_SIZE 4096
1226

    
1227
IOCTLEntry ioctl_entries[] = {
1228
#define IOCTL(cmd, access, types...) \
1229
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1230
#include "ioctls.h"
1231
    { 0, 0, },
1232
};
1233

    
1234
/* ??? Implement proper locking for ioctls.  */
1235
static long do_ioctl(long fd, long cmd, long arg)
1236
{
1237
    const IOCTLEntry *ie;
1238
    const argtype *arg_type;
1239
    long ret;
1240
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1241
    int target_size;
1242
    void *argptr;
1243

    
1244
    ie = ioctl_entries;
1245
    for(;;) {
1246
        if (ie->target_cmd == 0) {
1247
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1248
            return -ENOSYS;
1249
        }
1250
        if (ie->target_cmd == cmd)
1251
            break;
1252
        ie++;
1253
    }
1254
    arg_type = ie->arg_type;
1255
#if defined(DEBUG)
1256
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1257
#endif
1258
    switch(arg_type[0]) {
1259
    case TYPE_NULL:
1260
        /* no argument */
1261
        ret = get_errno(ioctl(fd, ie->host_cmd));
1262
        break;
1263
    case TYPE_PTRVOID:
1264
    case TYPE_INT:
1265
        /* int argment */
1266
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1267
        break;
1268
    case TYPE_PTR:
1269
        arg_type++;
1270
        target_size = thunk_type_size(arg_type, 0);
1271
        switch(ie->access) {
1272
        case IOC_R:
1273
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1274
            if (!is_error(ret)) {
1275
                argptr = lock_user(arg, target_size, 0);
1276
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1277
                unlock_user(argptr, arg, target_size);
1278
            }
1279
            break;
1280
        case IOC_W:
1281
            argptr = lock_user(arg, target_size, 1);
1282
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1283
            unlock_user(argptr, arg, 0);
1284
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1285
            break;
1286
        default:
1287
        case IOC_RW:
1288
            argptr = lock_user(arg, target_size, 1);
1289
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1290
            unlock_user(argptr, arg, 0);
1291
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1292
            if (!is_error(ret)) {
1293
                argptr = lock_user(arg, target_size, 0);
1294
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1295
                unlock_user(argptr, arg, target_size);
1296
            }
1297
            break;
1298
        }
1299
        break;
1300
    default:
1301
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1302
        ret = -ENOSYS;
1303
        break;
1304
    }
1305
    return ret;
1306
}
1307

    
1308
bitmask_transtbl iflag_tbl[] = {
1309
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1310
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1311
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1312
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1313
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1314
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1315
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1316
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1317
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1318
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1319
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1320
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1321
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1322
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1323
        { 0, 0, 0, 0 }
1324
};
1325

    
1326
bitmask_transtbl oflag_tbl[] = {
1327
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1328
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1329
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1330
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1331
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1332
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1333
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1334
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1335
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1336
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1337
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1338
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1339
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1340
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1341
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1342
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1343
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1344
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1345
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1346
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1347
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1348
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1349
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1350
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1351
        { 0, 0, 0, 0 }
1352
};
1353

    
1354
bitmask_transtbl cflag_tbl[] = {
1355
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1356
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1357
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1358
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1359
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1360
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1361
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1362
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1363
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1364
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1365
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1366
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1367
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1368
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1369
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1370
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1371
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1372
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1373
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1374
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1375
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1376
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1377
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1378
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1379
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1380
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1381
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1382
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1383
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1384
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1385
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1386
        { 0, 0, 0, 0 }
1387
};
1388

    
1389
bitmask_transtbl lflag_tbl[] = {
1390
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1391
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1392
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1393
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1394
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1395
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1396
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1397
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1398
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1399
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1400
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1401
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1402
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1403
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1404
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1405
        { 0, 0, 0, 0 }
1406
};
1407

    
1408
static void target_to_host_termios (void *dst, const void *src)
1409
{
1410
    struct host_termios *host = dst;
1411
    const struct target_termios *target = src;
1412
    
1413
    host->c_iflag = 
1414
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1415
    host->c_oflag = 
1416
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1417
    host->c_cflag = 
1418
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1419
    host->c_lflag = 
1420
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1421
    host->c_line = target->c_line;
1422
    
1423
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
1424
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
1425
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
1426
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
1427
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
1428
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
1429
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
1430
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
1431
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
1432
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
1433
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
1434
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
1435
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
1436
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
1437
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
1438
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
1439
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
1440
}
1441
  
1442
static void host_to_target_termios (void *dst, const void *src)
1443
{
1444
    struct target_termios *target = dst;
1445
    const struct host_termios *host = src;
1446

    
1447
    target->c_iflag = 
1448
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1449
    target->c_oflag = 
1450
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1451
    target->c_cflag = 
1452
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1453
    target->c_lflag = 
1454
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1455
    target->c_line = host->c_line;
1456
  
1457
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1458
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1459
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1460
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1461
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1462
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1463
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1464
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1465
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1466
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1467
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1468
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1469
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1470
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1471
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1472
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1473
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1474
}
1475

    
1476
StructEntry struct_termios_def = {
1477
    .convert = { host_to_target_termios, target_to_host_termios },
1478
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1479
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1480
};
1481

    
1482
static bitmask_transtbl mmap_flags_tbl[] = {
1483
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1484
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1485
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1486
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1487
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1488
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1489
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1490
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1491
        { 0, 0, 0, 0 }
1492
};
1493

    
1494
static bitmask_transtbl fcntl_flags_tbl[] = {
1495
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1496
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1497
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1498
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1499
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1500
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1501
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1502
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1503
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1504
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1505
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1506
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1507
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1508
#if defined(O_DIRECT)
1509
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1510
#endif
1511
        { 0, 0, 0, 0 }
1512
};
1513

    
1514
#if defined(TARGET_I386)
1515

    
1516
/* NOTE: there is really one LDT for all the threads */
1517
uint8_t *ldt_table;
1518

    
1519
static int read_ldt(target_ulong ptr, unsigned long bytecount)
1520
{
1521
    int size;
1522
    void *p;
1523

    
1524
    if (!ldt_table)
1525
        return 0;
1526
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1527
    if (size > bytecount)
1528
        size = bytecount;
1529
    p = lock_user(ptr, size, 0);
1530
    /* ??? Shoudl this by byteswapped?  */
1531
    memcpy(p, ldt_table, size);
1532
    unlock_user(p, ptr, size);
1533
    return size;
1534
}
1535

    
1536
/* XXX: add locking support */
1537
static int write_ldt(CPUX86State *env, 
1538
                     target_ulong ptr, unsigned long bytecount, int oldmode)
1539
{
1540
    struct target_modify_ldt_ldt_s ldt_info;
1541
    struct target_modify_ldt_ldt_s *target_ldt_info;
1542
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1543
    int seg_not_present, useable;
1544
    uint32_t *lp, entry_1, entry_2;
1545

    
1546
    if (bytecount != sizeof(ldt_info))
1547
        return -EINVAL;
1548
    lock_user_struct(target_ldt_info, ptr, 1);
1549
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1550
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1551
    ldt_info.limit = tswap32(target_ldt_info->limit);
1552
    ldt_info.flags = tswap32(target_ldt_info->flags);
1553
    unlock_user_struct(target_ldt_info, ptr, 0);
1554
    
1555
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1556
        return -EINVAL;
1557
    seg_32bit = ldt_info.flags & 1;
1558
    contents = (ldt_info.flags >> 1) & 3;
1559
    read_exec_only = (ldt_info.flags >> 3) & 1;
1560
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1561
    seg_not_present = (ldt_info.flags >> 5) & 1;
1562
    useable = (ldt_info.flags >> 6) & 1;
1563

    
1564
    if (contents == 3) {
1565
        if (oldmode)
1566
            return -EINVAL;
1567
        if (seg_not_present == 0)
1568
            return -EINVAL;
1569
    }
1570
    /* allocate the LDT */
1571
    if (!ldt_table) {
1572
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1573
        if (!ldt_table)
1574
            return -ENOMEM;
1575
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1576
        env->ldt.base = h2g(ldt_table);
1577
        env->ldt.limit = 0xffff;
1578
    }
1579

    
1580
    /* NOTE: same code as Linux kernel */
1581
    /* Allow LDTs to be cleared by the user. */
1582
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1583
        if (oldmode ||
1584
            (contents == 0                &&
1585
             read_exec_only == 1        &&
1586
             seg_32bit == 0                &&
1587
             limit_in_pages == 0        &&
1588
             seg_not_present == 1        &&
1589
             useable == 0 )) {
1590
            entry_1 = 0;
1591
            entry_2 = 0;
1592
            goto install;
1593
        }
1594
    }
1595
    
1596
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1597
        (ldt_info.limit & 0x0ffff);
1598
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1599
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1600
        (ldt_info.limit & 0xf0000) |
1601
        ((read_exec_only ^ 1) << 9) |
1602
        (contents << 10) |
1603
        ((seg_not_present ^ 1) << 15) |
1604
        (seg_32bit << 22) |
1605
        (limit_in_pages << 23) |
1606
        0x7000;
1607
    if (!oldmode)
1608
        entry_2 |= (useable << 20);
1609

    
1610
    /* Install the new entry ...  */
1611
install:
1612
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1613
    lp[0] = tswap32(entry_1);
1614
    lp[1] = tswap32(entry_2);
1615
    return 0;
1616
}
1617

    
1618
/* specific and weird i386 syscalls */
1619
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1620
{
1621
    int ret = -ENOSYS;
1622
    
1623
    switch (func) {
1624
    case 0:
1625
        ret = read_ldt(ptr, bytecount);
1626
        break;
1627
    case 1:
1628
        ret = write_ldt(env, ptr, bytecount, 1);
1629
        break;
1630
    case 0x11:
1631
        ret = write_ldt(env, ptr, bytecount, 0);
1632
        break;
1633
    }
1634
    return ret;
1635
}
1636

    
1637
#endif /* defined(TARGET_I386) */
1638

    
1639
/* this stack is the equivalent of the kernel stack associated with a
1640
   thread/process */
1641
#define NEW_STACK_SIZE 8192
1642

    
1643
static int clone_func(void *arg)
1644
{
1645
    CPUState *env = arg;
1646
    cpu_loop(env);
1647
    /* never exits */
1648
    return 0;
1649
}
1650

    
1651
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1652
{
1653
    int ret;
1654
    TaskState *ts;
1655
    uint8_t *new_stack;
1656
    CPUState *new_env;
1657
    
1658
    if (flags & CLONE_VM) {
1659
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1660
        memset(ts, 0, sizeof(TaskState));
1661
        new_stack = ts->stack;
1662
        ts->used = 1;
1663
        /* add in task state list */
1664
        ts->next = first_task_state;
1665
        first_task_state = ts;
1666
        /* we create a new CPU instance. */
1667
        new_env = cpu_init();
1668
        memcpy(new_env, env, sizeof(CPUState));
1669
#if defined(TARGET_I386)
1670
        if (!newsp)
1671
            newsp = env->regs[R_ESP];
1672
        new_env->regs[R_ESP] = newsp;
1673
        new_env->regs[R_EAX] = 0;
1674
#elif defined(TARGET_ARM)
1675
        if (!newsp)
1676
            newsp = env->regs[13];
1677
        new_env->regs[13] = newsp;
1678
        new_env->regs[0] = 0;
1679
#elif defined(TARGET_SPARC)
1680
        if (!newsp)
1681
            newsp = env->regwptr[22];
1682
        new_env->regwptr[22] = newsp;
1683
        new_env->regwptr[0] = 0;
1684
        /* XXXXX */
1685
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1686
#elif defined(TARGET_M68K)
1687
        if (!newsp)
1688
            newsp = env->aregs[7];
1689
        new_env->aregs[7] = newsp;
1690
        new_env->dregs[0] = 0;
1691
        /* ??? is this sufficient?  */
1692
#elif defined(TARGET_MIPS)
1693
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1694
#elif defined(TARGET_PPC)
1695
        if (!newsp)
1696
            newsp = env->gpr[1];
1697
        new_env->gpr[1] = newsp;
1698
        { 
1699
            int i;
1700
            for (i = 7; i < 32; i++)
1701
                new_env->gpr[i] = 0;
1702
        }
1703
#elif defined(TARGET_SH4)
1704
        if (!newsp)
1705
          newsp = env->gregs[15];
1706
        new_env->gregs[15] = newsp;
1707
        /* XXXXX */
1708
#else
1709
#error unsupported target CPU
1710
#endif
1711
        new_env->opaque = ts;
1712
#ifdef __ia64__
1713
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1714
#else
1715
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1716
#endif
1717
    } else {
1718
        /* if no CLONE_VM, we consider it is a fork */
1719
        if ((flags & ~CSIGNAL) != 0)
1720
            return -EINVAL;
1721
        ret = fork();
1722
    }
1723
    return ret;
1724
}
1725

    
1726
static long do_fcntl(int fd, int cmd, target_ulong arg)
1727
{
1728
    struct flock fl;
1729
    struct target_flock *target_fl;
1730
    long ret;
1731

    
1732
    switch(cmd) {
1733
    case TARGET_F_GETLK:
1734
        ret = fcntl(fd, cmd, &fl);
1735
        if (ret == 0) {
1736
            lock_user_struct(target_fl, arg, 0);
1737
            target_fl->l_type = tswap16(fl.l_type);
1738
            target_fl->l_whence = tswap16(fl.l_whence);
1739
            target_fl->l_start = tswapl(fl.l_start);
1740
            target_fl->l_len = tswapl(fl.l_len);
1741
            target_fl->l_pid = tswapl(fl.l_pid);
1742
            unlock_user_struct(target_fl, arg, 1);
1743
        }
1744
        break;
1745
        
1746
    case TARGET_F_SETLK:
1747
    case TARGET_F_SETLKW:
1748
        lock_user_struct(target_fl, arg, 1);
1749
        fl.l_type = tswap16(target_fl->l_type);
1750
        fl.l_whence = tswap16(target_fl->l_whence);
1751
        fl.l_start = tswapl(target_fl->l_start);
1752
        fl.l_len = tswapl(target_fl->l_len);
1753
        fl.l_pid = tswapl(target_fl->l_pid);
1754
        unlock_user_struct(target_fl, arg, 0);
1755
        ret = fcntl(fd, cmd, &fl);
1756
        break;
1757
        
1758
    case TARGET_F_GETLK64:
1759
    case TARGET_F_SETLK64:
1760
    case TARGET_F_SETLKW64:
1761
        ret = -1;
1762
        errno = EINVAL;
1763
        break;
1764

    
1765
    case F_GETFL:
1766
        ret = fcntl(fd, cmd, arg);
1767
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1768
        break;
1769

    
1770
    case F_SETFL:
1771
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1772
        break;
1773

    
1774
    default:
1775
        ret = fcntl(fd, cmd, arg);
1776
        break;
1777
    }
1778
    return ret;
1779
}
1780

    
1781
#ifdef USE_UID16
1782

    
1783
static inline int high2lowuid(int uid)
1784
{
1785
    if (uid > 65535)
1786
        return 65534;
1787
    else
1788
        return uid;
1789
}
1790

    
1791
static inline int high2lowgid(int gid)
1792
{
1793
    if (gid > 65535)
1794
        return 65534;
1795
    else
1796
        return gid;
1797
}
1798

    
1799
static inline int low2highuid(int uid)
1800
{
1801
    if ((int16_t)uid == -1)
1802
        return -1;
1803
    else
1804
        return uid;
1805
}
1806

    
1807
static inline int low2highgid(int gid)
1808
{
1809
    if ((int16_t)gid == -1)
1810
        return -1;
1811
    else
1812
        return gid;
1813
}
1814

    
1815
#endif /* USE_UID16 */
1816

    
1817
void syscall_init(void)
1818
{
1819
    IOCTLEntry *ie;
1820
    const argtype *arg_type;
1821
    int size;
1822

    
1823
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1824
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1825
#include "syscall_types.h"
1826
#undef STRUCT
1827
#undef STRUCT_SPECIAL
1828

    
1829
    /* we patch the ioctl size if necessary. We rely on the fact that
1830
       no ioctl has all the bits at '1' in the size field */
1831
    ie = ioctl_entries;
1832
    while (ie->target_cmd != 0) {
1833
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1834
            TARGET_IOC_SIZEMASK) {
1835
            arg_type = ie->arg_type;
1836
            if (arg_type[0] != TYPE_PTR) {
1837
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1838
                        ie->target_cmd);
1839
                exit(1);
1840
            }
1841
            arg_type++;
1842
            size = thunk_type_size(arg_type, 0);
1843
            ie->target_cmd = (ie->target_cmd & 
1844
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1845
                (size << TARGET_IOC_SIZESHIFT);
1846
        }
1847
        /* automatic consistency check if same arch */
1848
#if defined(__i386__) && defined(TARGET_I386)
1849
        if (ie->target_cmd != ie->host_cmd) {
1850
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1851
                    ie->target_cmd, ie->host_cmd);
1852
        }
1853
#endif
1854
        ie++;
1855
    }
1856
}
1857

    
1858
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1859
{
1860
#ifdef TARGET_WORDS_BIG_ENDIAN
1861
    return ((uint64_t)word0 << 32) | word1;
1862
#else
1863
    return ((uint64_t)word1 << 32) | word0;
1864
#endif
1865
}
1866

    
1867
#ifdef TARGET_NR_truncate64
1868
static inline long target_truncate64(void *cpu_env, const char *arg1,
1869
                                     long arg2, long arg3, long arg4)
1870
{
1871
#ifdef TARGET_ARM
1872
    if (((CPUARMState *)cpu_env)->eabi)
1873
      {
1874
        arg2 = arg3;
1875
        arg3 = arg4;
1876
      }
1877
#endif
1878
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1879
}
1880
#endif
1881

    
1882
#ifdef TARGET_NR_ftruncate64
1883
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1884
                                      long arg3, long arg4)
1885
{
1886
#ifdef TARGET_ARM
1887
    if (((CPUARMState *)cpu_env)->eabi)
1888
      {
1889
        arg2 = arg3;
1890
        arg3 = arg4;
1891
      }
1892
#endif
1893
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1894
}
1895
#endif
1896

    
1897
static inline void target_to_host_timespec(struct timespec *host_ts,
1898
                                           target_ulong target_addr)
1899
{
1900
    struct target_timespec *target_ts;
1901

    
1902
    lock_user_struct(target_ts, target_addr, 1);
1903
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
1904
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1905
    unlock_user_struct(target_ts, target_addr, 0);
1906
}
1907

    
1908
static inline void host_to_target_timespec(target_ulong target_addr,
1909
                                           struct timespec *host_ts)
1910
{
1911
    struct target_timespec *target_ts;
1912

    
1913
    lock_user_struct(target_ts, target_addr, 0);
1914
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
1915
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
1916
    unlock_user_struct(target_ts, target_addr, 1);
1917
}
1918

    
1919
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1920
                long arg4, long arg5, long arg6)
1921
{
1922
    long ret;
1923
    struct stat st;
1924
    struct statfs stfs;
1925
    void *p;
1926
    
1927
#ifdef DEBUG
1928
    gemu_log("syscall %d", num);
1929
#endif
1930
    switch(num) {
1931
    case TARGET_NR_exit:
1932
#ifdef HAVE_GPROF
1933
        _mcleanup();
1934
#endif
1935
        gdb_exit(cpu_env, arg1);
1936
        /* XXX: should free thread stack and CPU env */
1937
        _exit(arg1);
1938
        ret = 0; /* avoid warning */
1939
        break;
1940
    case TARGET_NR_read:
1941
        page_unprotect_range(arg2, arg3);
1942
        p = lock_user(arg2, arg3, 0);
1943
        ret = get_errno(read(arg1, p, arg3));
1944
        unlock_user(p, arg2, ret);
1945
        break;
1946
    case TARGET_NR_write:
1947
        p = lock_user(arg2, arg3, 1);
1948
        ret = get_errno(write(arg1, p, arg3));
1949
        unlock_user(p, arg2, 0);
1950
        break;
1951
    case TARGET_NR_open:
1952
        p = lock_user_string(arg1);
1953
        ret = get_errno(open(path(p),
1954
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
1955
                             arg3));
1956
        unlock_user(p, arg1, 0);
1957
        break;
1958
    case TARGET_NR_close:
1959
        ret = get_errno(close(arg1));
1960
        break;
1961
    case TARGET_NR_brk:
1962
        ret = do_brk(arg1);
1963
        break;
1964
    case TARGET_NR_fork:
1965
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1966
        break;
1967
    case TARGET_NR_waitpid:
1968
        {
1969
            int status;
1970
            ret = get_errno(waitpid(arg1, &status, arg3));
1971
            if (!is_error(ret) && arg2)
1972
                tput32(arg2, status);
1973
        }
1974
        break;
1975
    case TARGET_NR_creat:
1976
        p = lock_user_string(arg1);
1977
        ret = get_errno(creat(p, arg2));
1978
        unlock_user(p, arg1, 0);
1979
        break;
1980
    case TARGET_NR_link:
1981
        {
1982
            void * p2;
1983
            p = lock_user_string(arg1);
1984
            p2 = lock_user_string(arg2);
1985
            ret = get_errno(link(p, p2));
1986
            unlock_user(p2, arg2, 0);
1987
            unlock_user(p, arg1, 0);
1988
        }
1989
        break;
1990
    case TARGET_NR_unlink:
1991
        p = lock_user_string(arg1);
1992
        ret = get_errno(unlink(p));
1993
        unlock_user(p, arg1, 0);
1994
        break;
1995
    case TARGET_NR_execve:
1996
        {
1997
            char **argp, **envp;
1998
            int argc, envc;
1999
            target_ulong gp;
2000
            target_ulong guest_argp;
2001
            target_ulong guest_envp;
2002
            target_ulong addr;
2003
            char **q;
2004

    
2005
            argc = 0;
2006
            guest_argp = arg2;
2007
            for (gp = guest_argp; tgetl(gp); gp++)
2008
                argc++;
2009
            envc = 0;
2010
            guest_envp = arg3;
2011
            for (gp = guest_envp; tgetl(gp); gp++)
2012
                envc++;
2013

    
2014
            argp = alloca((argc + 1) * sizeof(void *));
2015
            envp = alloca((envc + 1) * sizeof(void *));
2016

    
2017
            for (gp = guest_argp, q = argp; ;
2018
                  gp += sizeof(target_ulong), q++) {
2019
                addr = tgetl(gp);
2020
                if (!addr)
2021
                    break;
2022
                *q = lock_user_string(addr);
2023
            }
2024
            *q = NULL;
2025

    
2026
            for (gp = guest_envp, q = envp; ;
2027
                  gp += sizeof(target_ulong), q++) {
2028
                addr = tgetl(gp);
2029
                if (!addr)
2030
                    break;
2031
                *q = lock_user_string(addr);
2032
            }
2033
            *q = NULL;
2034

    
2035
            p = lock_user_string(arg1);
2036
            ret = get_errno(execve(p, argp, envp));
2037
            unlock_user(p, arg1, 0);
2038

    
2039
            for (gp = guest_argp, q = argp; *q;
2040
                  gp += sizeof(target_ulong), q++) {
2041
                addr = tgetl(gp);
2042
                unlock_user(*q, addr, 0);
2043
            }
2044
            for (gp = guest_envp, q = envp; *q;
2045
                  gp += sizeof(target_ulong), q++) {
2046
                addr = tgetl(gp);
2047
                unlock_user(*q, addr, 0);
2048
            }
2049
        }
2050
        break;
2051
    case TARGET_NR_chdir:
2052
        p = lock_user_string(arg1);
2053
        ret = get_errno(chdir(p));
2054
        unlock_user(p, arg1, 0);
2055
        break;
2056
#ifdef TARGET_NR_time
2057
    case TARGET_NR_time:
2058
        {
2059
            time_t host_time;
2060
            ret = get_errno(time(&host_time));
2061
            if (!is_error(ret) && arg1)
2062
                tputl(arg1, host_time);
2063
        }
2064
        break;
2065
#endif
2066
    case TARGET_NR_mknod:
2067
        p = lock_user_string(arg1);
2068
        ret = get_errno(mknod(p, arg2, arg3));
2069
        unlock_user(p, arg1, 0);
2070
        break;
2071
    case TARGET_NR_chmod:
2072
        p = lock_user_string(arg1);
2073
        ret = get_errno(chmod(p, arg2));
2074
        unlock_user(p, arg1, 0);
2075
        break;
2076
#ifdef TARGET_NR_break
2077
    case TARGET_NR_break:
2078
        goto unimplemented;
2079
#endif
2080
#ifdef TARGET_NR_oldstat
2081
    case TARGET_NR_oldstat:
2082
        goto unimplemented;
2083
#endif
2084
    case TARGET_NR_lseek:
2085
        ret = get_errno(lseek(arg1, arg2, arg3));
2086
        break;
2087
    case TARGET_NR_getpid:
2088
        ret = get_errno(getpid());
2089
        break;
2090
    case TARGET_NR_mount:
2091
        /* need to look at the data field */
2092
        goto unimplemented;
2093
    case TARGET_NR_umount:
2094
        p = lock_user_string(arg1);
2095
        ret = get_errno(umount(p));
2096
        unlock_user(p, arg1, 0);
2097
        break;
2098
    case TARGET_NR_stime:
2099
        {
2100
            time_t host_time;
2101
            host_time = tgetl(arg1);
2102
            ret = get_errno(stime(&host_time));
2103
        }
2104
        break;
2105
    case TARGET_NR_ptrace:
2106
        goto unimplemented;
2107
    case TARGET_NR_alarm:
2108
        ret = alarm(arg1);
2109
        break;
2110
#ifdef TARGET_NR_oldfstat
2111
    case TARGET_NR_oldfstat:
2112
        goto unimplemented;
2113
#endif
2114
    case TARGET_NR_pause:
2115
        ret = get_errno(pause());
2116
        break;
2117
    case TARGET_NR_utime:
2118
        {
2119
            struct utimbuf tbuf, *host_tbuf;
2120
            struct target_utimbuf *target_tbuf;
2121
            if (arg2) {
2122
                lock_user_struct(target_tbuf, arg2, 1);
2123
                tbuf.actime = tswapl(target_tbuf->actime);
2124
                tbuf.modtime = tswapl(target_tbuf->modtime);
2125
                unlock_user_struct(target_tbuf, arg2, 0);
2126
                host_tbuf = &tbuf;
2127
            } else {
2128
                host_tbuf = NULL;
2129
            }
2130
            p = lock_user_string(arg1);
2131
            ret = get_errno(utime(p, host_tbuf));
2132
            unlock_user(p, arg1, 0);
2133
        }
2134
        break;
2135
    case TARGET_NR_utimes:
2136
        {
2137
            struct timeval *tvp, tv[2];
2138
            if (arg2) {
2139
                target_to_host_timeval(&tv[0], arg2);
2140
                target_to_host_timeval(&tv[1],
2141
                    arg2 + sizeof (struct target_timeval));
2142
                tvp = tv;
2143
            } else {
2144
                tvp = NULL;
2145
            }
2146
            p = lock_user_string(arg1);
2147
            ret = get_errno(utimes(p, tvp));
2148
            unlock_user(p, arg1, 0);
2149
        }
2150
        break;
2151
#ifdef TARGET_NR_stty
2152
    case TARGET_NR_stty:
2153
        goto unimplemented;
2154
#endif
2155
#ifdef TARGET_NR_gtty
2156
    case TARGET_NR_gtty:
2157
        goto unimplemented;
2158
#endif
2159
    case TARGET_NR_access:
2160
        p = lock_user_string(arg1);
2161
        ret = get_errno(access(p, arg2));
2162
        unlock_user(p, arg1, 0);
2163
        break;
2164
    case TARGET_NR_nice:
2165
        ret = get_errno(nice(arg1));
2166
        break;
2167
#ifdef TARGET_NR_ftime
2168
    case TARGET_NR_ftime:
2169
        goto unimplemented;
2170
#endif
2171
    case TARGET_NR_sync:
2172
        sync();
2173
        ret = 0;
2174
        break;
2175
    case TARGET_NR_kill:
2176
        ret = get_errno(kill(arg1, arg2));
2177
        break;
2178
    case TARGET_NR_rename:
2179
        {
2180
            void *p2;
2181
            p = lock_user_string(arg1);
2182
            p2 = lock_user_string(arg2);
2183
            ret = get_errno(rename(p, p2));
2184
            unlock_user(p2, arg2, 0);
2185
            unlock_user(p, arg1, 0);
2186
        }
2187
        break;
2188
    case TARGET_NR_mkdir:
2189
        p = lock_user_string(arg1);
2190
        ret = get_errno(mkdir(p, arg2));
2191
        unlock_user(p, arg1, 0);
2192
        break;
2193
    case TARGET_NR_rmdir:
2194
        p = lock_user_string(arg1);
2195
        ret = get_errno(rmdir(p));
2196
        unlock_user(p, arg1, 0);
2197
        break;
2198
    case TARGET_NR_dup:
2199
        ret = get_errno(dup(arg1));
2200
        break;
2201
    case TARGET_NR_pipe:
2202
        {
2203
            int host_pipe[2];
2204
            ret = get_errno(pipe(host_pipe));
2205
            if (!is_error(ret)) {
2206
                tput32(arg1, host_pipe[0]);
2207
                tput32(arg1 + 4, host_pipe[1]);
2208
            }
2209
        }
2210
        break;
2211
    case TARGET_NR_times:
2212
        {
2213
            struct target_tms *tmsp;
2214
            struct tms tms;
2215
            ret = get_errno(times(&tms));
2216
            if (arg1) {
2217
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2218
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2219
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2220
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2221
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2222
            }
2223
            if (!is_error(ret))
2224
                ret = host_to_target_clock_t(ret);
2225
        }
2226
        break;
2227
#ifdef TARGET_NR_prof
2228
    case TARGET_NR_prof:
2229
        goto unimplemented;
2230
#endif
2231
    case TARGET_NR_signal:
2232
        goto unimplemented;
2233

    
2234
    case TARGET_NR_acct:
2235
        p = lock_user_string(arg1);
2236
        ret = get_errno(acct(path(p)));
2237
        unlock_user(p, arg1, 0);
2238
        break;
2239
    case TARGET_NR_umount2:
2240
        p = lock_user_string(arg1);
2241
        ret = get_errno(umount2(p, arg2));
2242
        unlock_user(p, arg1, 0);
2243
        break;
2244
#ifdef TARGET_NR_lock
2245
    case TARGET_NR_lock:
2246
        goto unimplemented;
2247
#endif
2248
    case TARGET_NR_ioctl:
2249
        ret = do_ioctl(arg1, arg2, arg3);
2250
        break;
2251
    case TARGET_NR_fcntl:
2252
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
2253
        break;
2254
#ifdef TARGET_NR_mpx
2255
    case TARGET_NR_mpx:
2256
        goto unimplemented;
2257
#endif
2258
    case TARGET_NR_setpgid:
2259
        ret = get_errno(setpgid(arg1, arg2));
2260
        break;
2261
#ifdef TARGET_NR_ulimit
2262
    case TARGET_NR_ulimit:
2263
        goto unimplemented;
2264
#endif
2265
#ifdef TARGET_NR_oldolduname
2266
    case TARGET_NR_oldolduname:
2267
        goto unimplemented;
2268
#endif
2269
    case TARGET_NR_umask:
2270
        ret = get_errno(umask(arg1));
2271
        break;
2272
    case TARGET_NR_chroot:
2273
        p = lock_user_string(arg1);
2274
        ret = get_errno(chroot(p));
2275
        unlock_user(p, arg1, 0);
2276
        break;
2277
    case TARGET_NR_ustat:
2278
        goto unimplemented;
2279
    case TARGET_NR_dup2:
2280
        ret = get_errno(dup2(arg1, arg2));
2281
        break;
2282
    case TARGET_NR_getppid:
2283
        ret = get_errno(getppid());
2284
        break;
2285
    case TARGET_NR_getpgrp:
2286
        ret = get_errno(getpgrp());
2287
        break;
2288
    case TARGET_NR_setsid:
2289
        ret = get_errno(setsid());
2290
        break;
2291
    case TARGET_NR_sigaction:
2292
        {
2293
        #if !defined(TARGET_MIPS)
2294
            struct target_old_sigaction *old_act;
2295
            struct target_sigaction act, oact, *pact;
2296
            if (arg2) {
2297
                lock_user_struct(old_act, arg2, 1);
2298
                act._sa_handler = old_act->_sa_handler;
2299
                target_siginitset(&act.sa_mask, old_act->sa_mask);
2300
                act.sa_flags = old_act->sa_flags;
2301
                act.sa_restorer = old_act->sa_restorer;
2302
                unlock_user_struct(old_act, arg2, 0);
2303
                pact = &act;
2304
            } else {
2305
                pact = NULL;
2306
            }
2307
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2308
            if (!is_error(ret) && arg3) {
2309
                lock_user_struct(old_act, arg3, 0);
2310
                old_act->_sa_handler = oact._sa_handler;
2311
                old_act->sa_mask = oact.sa_mask.sig[0];
2312
                old_act->sa_flags = oact.sa_flags;
2313
                old_act->sa_restorer = oact.sa_restorer;
2314
                unlock_user_struct(old_act, arg3, 1);
2315
            }
2316
        #else
2317
            struct target_sigaction act, oact, *pact, *old_act;
2318

    
2319
            if (arg2) {
2320
                lock_user_struct(old_act, arg2, 1);
2321
                act._sa_handler = old_act->_sa_handler;
2322
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
2323
                act.sa_flags = old_act->sa_flags;
2324
                unlock_user_struct(old_act, arg2, 0);
2325
                pact = &act;
2326
            } else {
2327
                pact = NULL;
2328
            }
2329

    
2330
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2331

    
2332
            if (!is_error(ret) && arg3) {
2333
                lock_user_struct(old_act, arg3, 0);
2334
                old_act->_sa_handler = oact._sa_handler;
2335
                old_act->sa_flags = oact.sa_flags;
2336
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
2337
                old_act->sa_mask.sig[1] = 0;
2338
                old_act->sa_mask.sig[2] = 0;
2339
                old_act->sa_mask.sig[3] = 0;
2340
                unlock_user_struct(old_act, arg3, 1);
2341
            }
2342
        #endif
2343
        }
2344
        break;
2345
    case TARGET_NR_rt_sigaction:
2346
        {
2347
            struct target_sigaction *act;
2348
            struct target_sigaction *oact;
2349

    
2350
            if (arg2)
2351
                lock_user_struct(act, arg2, 1);
2352
            else
2353
                act = NULL;
2354
            if (arg3)
2355
                lock_user_struct(oact, arg3, 0);
2356
            else
2357
                oact = NULL;
2358
            ret = get_errno(do_sigaction(arg1, act, oact));
2359
            if (arg2)
2360
                unlock_user_struct(act, arg2, 0);
2361
            if (arg3)
2362
                unlock_user_struct(oact, arg3, 1);
2363
        }
2364
        break;
2365
    case TARGET_NR_sgetmask:
2366
        {
2367
            sigset_t cur_set;
2368
            target_ulong target_set;
2369
            sigprocmask(0, NULL, &cur_set);
2370
            host_to_target_old_sigset(&target_set, &cur_set);
2371
            ret = target_set;
2372
        }
2373
        break;
2374
    case TARGET_NR_ssetmask:
2375
        {
2376
            sigset_t set, oset, cur_set;
2377
            target_ulong target_set = arg1;
2378
            sigprocmask(0, NULL, &cur_set);
2379
            target_to_host_old_sigset(&set, &target_set);
2380
            sigorset(&set, &set, &cur_set);
2381
            sigprocmask(SIG_SETMASK, &set, &oset);
2382
            host_to_target_old_sigset(&target_set, &oset);
2383
            ret = target_set;
2384
        }
2385
        break;
2386
    case TARGET_NR_sigprocmask:
2387
        {
2388
            int how = arg1;
2389
            sigset_t set, oldset, *set_ptr;
2390
            
2391
            if (arg2) {
2392
                switch(how) {
2393
                case TARGET_SIG_BLOCK:
2394
                    how = SIG_BLOCK;
2395
                    break;
2396
                case TARGET_SIG_UNBLOCK:
2397
                    how = SIG_UNBLOCK;
2398
                    break;
2399
                case TARGET_SIG_SETMASK:
2400
                    how = SIG_SETMASK;
2401
                    break;
2402
                default:
2403
                    ret = -EINVAL;
2404
                    goto fail;
2405
                }
2406
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2407
                target_to_host_old_sigset(&set, p);
2408
                unlock_user(p, arg2, 0);
2409
                set_ptr = &set;
2410
            } else {
2411
                how = 0;
2412
                set_ptr = NULL;
2413
            }
2414
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2415
            if (!is_error(ret) && arg3) {
2416
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2417
                host_to_target_old_sigset(p, &oldset);
2418
                unlock_user(p, arg3, sizeof(target_sigset_t));
2419
            }
2420
        }
2421
        break;
2422
    case TARGET_NR_rt_sigprocmask:
2423
        {
2424
            int how = arg1;
2425
            sigset_t set, oldset, *set_ptr;
2426
            
2427
            if (arg2) {
2428
                switch(how) {
2429
                case TARGET_SIG_BLOCK:
2430
                    how = SIG_BLOCK;
2431
                    break;
2432
                case TARGET_SIG_UNBLOCK:
2433
                    how = SIG_UNBLOCK;
2434
                    break;
2435
                case TARGET_SIG_SETMASK:
2436
                    how = SIG_SETMASK;
2437
                    break;
2438
                default:
2439
                    ret = -EINVAL;
2440
                    goto fail;
2441
                }
2442
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2443
                target_to_host_sigset(&set, p);
2444
                unlock_user(p, arg2, 0);
2445
                set_ptr = &set;
2446
            } else {
2447
                how = 0;
2448
                set_ptr = NULL;
2449
            }
2450
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2451
            if (!is_error(ret) && arg3) {
2452
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2453
                host_to_target_sigset(p, &oldset);
2454
                unlock_user(p, arg3, sizeof(target_sigset_t));
2455
            }
2456
        }
2457
        break;
2458
    case TARGET_NR_sigpending:
2459
        {
2460
            sigset_t set;
2461
            ret = get_errno(sigpending(&set));
2462
            if (!is_error(ret)) {
2463
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2464
                host_to_target_old_sigset(p, &set);
2465
                unlock_user(p, arg1, sizeof(target_sigset_t));
2466
            }
2467
        }
2468
        break;
2469
    case TARGET_NR_rt_sigpending:
2470
        {
2471
            sigset_t set;
2472
            ret = get_errno(sigpending(&set));
2473
            if (!is_error(ret)) {
2474
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2475
                host_to_target_sigset(p, &set);
2476
                unlock_user(p, arg1, sizeof(target_sigset_t));
2477
            }
2478
        }
2479
        break;
2480
    case TARGET_NR_sigsuspend:
2481
        {
2482
            sigset_t set;
2483
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2484
            target_to_host_old_sigset(&set, p);
2485
            unlock_user(p, arg1, 0);
2486
            ret = get_errno(sigsuspend(&set));
2487
        }
2488
        break;
2489
    case TARGET_NR_rt_sigsuspend:
2490
        {
2491
            sigset_t set;
2492
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2493
            target_to_host_sigset(&set, p);
2494
            unlock_user(p, arg1, 0);
2495
            ret = get_errno(sigsuspend(&set));
2496
        }
2497
        break;
2498
    case TARGET_NR_rt_sigtimedwait:
2499
        {
2500
            sigset_t set;
2501
            struct timespec uts, *puts;
2502
            siginfo_t uinfo;
2503
            
2504
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2505
            target_to_host_sigset(&set, p);
2506
            unlock_user(p, arg1, 0);
2507
            if (arg3) {
2508
                puts = &uts;
2509
                target_to_host_timespec(puts, arg3);
2510
            } else {
2511
                puts = NULL;
2512
            }
2513
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2514
            if (!is_error(ret) && arg2) {
2515
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
2516
                host_to_target_siginfo(p, &uinfo);
2517
                unlock_user(p, arg2, sizeof(target_sigset_t));
2518
            }
2519
        }
2520
        break;
2521
    case TARGET_NR_rt_sigqueueinfo:
2522
        {
2523
            siginfo_t uinfo;
2524
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
2525
            target_to_host_siginfo(&uinfo, p);
2526
            unlock_user(p, arg1, 0);
2527
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2528
        }
2529
        break;
2530
    case TARGET_NR_sigreturn:
2531
        /* NOTE: ret is eax, so not transcoding must be done */
2532
        ret = do_sigreturn(cpu_env);
2533
        break;
2534
    case TARGET_NR_rt_sigreturn:
2535
        /* NOTE: ret is eax, so not transcoding must be done */
2536
        ret = do_rt_sigreturn(cpu_env);
2537
        break;
2538
    case TARGET_NR_sethostname:
2539
        p = lock_user_string(arg1);
2540
        ret = get_errno(sethostname(p, arg2));
2541
        unlock_user(p, arg1, 0);
2542
        break;
2543
    case TARGET_NR_setrlimit:
2544
        {
2545
            /* XXX: convert resource ? */
2546
            int resource = arg1;
2547
            struct target_rlimit *target_rlim;
2548
            struct rlimit rlim;
2549
            lock_user_struct(target_rlim, arg2, 1);
2550
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2551
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
2552
            unlock_user_struct(target_rlim, arg2, 0);
2553
            ret = get_errno(setrlimit(resource, &rlim));
2554
        }
2555
        break;
2556
    case TARGET_NR_getrlimit:
2557
        {
2558
            /* XXX: convert resource ? */
2559
            int resource = arg1;
2560
            struct target_rlimit *target_rlim;
2561
            struct rlimit rlim;
2562
            
2563
            ret = get_errno(getrlimit(resource, &rlim));
2564
            if (!is_error(ret)) {
2565
                lock_user_struct(target_rlim, arg2, 0);
2566
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2567
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
2568
                unlock_user_struct(target_rlim, arg2, 1);
2569
            }
2570
        }
2571
        break;
2572
    case TARGET_NR_getrusage:
2573
        {
2574
            struct rusage rusage;
2575
            ret = get_errno(getrusage(arg1, &rusage));
2576
            if (!is_error(ret)) {
2577
                host_to_target_rusage(arg2, &rusage);
2578
            }
2579
        }
2580
        break;
2581
    case TARGET_NR_gettimeofday:
2582
        {
2583
            struct timeval tv;
2584
            ret = get_errno(gettimeofday(&tv, NULL));
2585
            if (!is_error(ret)) {
2586
                host_to_target_timeval(arg1, &tv);
2587
            }
2588
        }
2589
        break;
2590
    case TARGET_NR_settimeofday:
2591
        {
2592
            struct timeval tv;
2593
            target_to_host_timeval(&tv, arg1);
2594
            ret = get_errno(settimeofday(&tv, NULL));
2595
        }
2596
        break;
2597
#ifdef TARGET_NR_select
2598
    case TARGET_NR_select:
2599
        {
2600
            struct target_sel_arg_struct *sel;
2601
            target_ulong inp, outp, exp, tvp;
2602
            long nsel;
2603

    
2604
            lock_user_struct(sel, arg1, 1);
2605
            nsel = tswapl(sel->n);
2606
            inp = tswapl(sel->inp);
2607
            outp = tswapl(sel->outp);
2608
            exp = tswapl(sel->exp);
2609
            tvp = tswapl(sel->tvp);
2610
            unlock_user_struct(sel, arg1, 0);
2611
            ret = do_select(nsel, inp, outp, exp, tvp);
2612
        }
2613
        break;
2614
#endif
2615
    case TARGET_NR_symlink:
2616
        {
2617
            void *p2;
2618
            p = lock_user_string(arg1);
2619
            p2 = lock_user_string(arg2);
2620
            ret = get_errno(symlink(p, p2));
2621
            unlock_user(p2, arg2, 0);
2622
            unlock_user(p, arg1, 0);
2623
        }
2624
        break;
2625
#ifdef TARGET_NR_oldlstat
2626
    case TARGET_NR_oldlstat:
2627
        goto unimplemented;
2628
#endif
2629
    case TARGET_NR_readlink:
2630
        {
2631
            void *p2;
2632
            p = lock_user_string(arg1);
2633
            p2 = lock_user(arg2, arg3, 0);
2634
            ret = get_errno(readlink(path(p), p2, arg3));
2635
            unlock_user(p2, arg2, ret);
2636
            unlock_user(p, arg1, 0);
2637
        }
2638
        break;
2639
    case TARGET_NR_uselib:
2640
        goto unimplemented;
2641
    case TARGET_NR_swapon:
2642
        p = lock_user_string(arg1);
2643
        ret = get_errno(swapon(p, arg2));
2644
        unlock_user(p, arg1, 0);
2645
        break;
2646
    case TARGET_NR_reboot:
2647
        goto unimplemented;
2648
    case TARGET_NR_readdir:
2649
        goto unimplemented;
2650
    case TARGET_NR_mmap:
2651
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
2652
        {
2653
            target_ulong *v;
2654
            target_ulong v1, v2, v3, v4, v5, v6;
2655
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2656
            v1 = tswapl(v[0]);
2657
            v2 = tswapl(v[1]);
2658
            v3 = tswapl(v[2]);
2659
            v4 = tswapl(v[3]);
2660
            v5 = tswapl(v[4]);
2661
            v6 = tswapl(v[5]);
2662
            unlock_user(v, arg1, 0);
2663
            ret = get_errno(target_mmap(v1, v2, v3, 
2664
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
2665
                                        v5, v6));
2666
        }
2667
#else
2668
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2669
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2670
                                    arg5,
2671
                                    arg6));
2672
#endif
2673
        break;
2674
#ifdef TARGET_NR_mmap2
2675
    case TARGET_NR_mmap2:
2676
#if defined(TARGET_SPARC)
2677
#define MMAP_SHIFT 12
2678
#else
2679
#define MMAP_SHIFT TARGET_PAGE_BITS
2680
#endif
2681
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2682
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2683
                                    arg5,
2684
                                    arg6 << MMAP_SHIFT));
2685
        break;
2686
#endif
2687
    case TARGET_NR_munmap:
2688
        ret = get_errno(target_munmap(arg1, arg2));
2689
        break;
2690
    case TARGET_NR_mprotect:
2691
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
2692
        break;
2693
    case TARGET_NR_mremap:
2694
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2695
        break;
2696
        /* ??? msync/mlock/munlock are broken for softmmu.  */
2697
    case TARGET_NR_msync:
2698
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
2699
        break;
2700
    case TARGET_NR_mlock:
2701
        ret = get_errno(mlock(g2h(arg1), arg2));
2702
        break;
2703
    case TARGET_NR_munlock:
2704
        ret = get_errno(munlock(g2h(arg1), arg2));
2705
        break;
2706
    case TARGET_NR_mlockall:
2707
        ret = get_errno(mlockall(arg1));
2708
        break;
2709
    case TARGET_NR_munlockall:
2710
        ret = get_errno(munlockall());
2711
        break;
2712
    case TARGET_NR_truncate:
2713
        p = lock_user_string(arg1);
2714
        ret = get_errno(truncate(p, arg2));
2715
        unlock_user(p, arg1, 0);
2716
        break;
2717
    case TARGET_NR_ftruncate:
2718
        ret = get_errno(ftruncate(arg1, arg2));
2719
        break;
2720
    case TARGET_NR_fchmod:
2721
        ret = get_errno(fchmod(arg1, arg2));
2722
        break;
2723
    case TARGET_NR_getpriority:
2724
        ret = get_errno(getpriority(arg1, arg2));
2725
        break;
2726
    case TARGET_NR_setpriority:
2727
        ret = get_errno(setpriority(arg1, arg2, arg3));
2728
        break;
2729
#ifdef TARGET_NR_profil
2730
    case TARGET_NR_profil:
2731
        goto unimplemented;
2732
#endif
2733
    case TARGET_NR_statfs:
2734
        p = lock_user_string(arg1);
2735
        ret = get_errno(statfs(path(p), &stfs));
2736
        unlock_user(p, arg1, 0);
2737
    convert_statfs:
2738
        if (!is_error(ret)) {
2739
            struct target_statfs *target_stfs;
2740
            
2741
            lock_user_struct(target_stfs, arg2, 0);
2742
            /* ??? put_user is probably wrong.  */
2743
            put_user(stfs.f_type, &target_stfs->f_type);
2744
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2745
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2746
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2747
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2748
            put_user(stfs.f_files, &target_stfs->f_files);
2749
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2750
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2751
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2752
            unlock_user_struct(target_stfs, arg2, 1);
2753
        }
2754
        break;
2755
    case TARGET_NR_fstatfs:
2756
        ret = get_errno(fstatfs(arg1, &stfs));
2757
        goto convert_statfs;
2758
#ifdef TARGET_NR_statfs64
2759
    case TARGET_NR_statfs64:
2760
        p = lock_user_string(arg1);
2761
        ret = get_errno(statfs(path(p), &stfs));
2762
        unlock_user(p, arg1, 0);
2763
    convert_statfs64:
2764
        if (!is_error(ret)) {
2765
            struct target_statfs64 *target_stfs;
2766
            
2767
            lock_user_struct(target_stfs, arg3, 0);
2768
            /* ??? put_user is probably wrong.  */
2769
            put_user(stfs.f_type, &target_stfs->f_type);
2770
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2771
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2772
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2773
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2774
            put_user(stfs.f_files, &target_stfs->f_files);
2775
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2776
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2777
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2778
            unlock_user_struct(target_stfs, arg3, 0);
2779
        }
2780
        break;
2781
    case TARGET_NR_fstatfs64:
2782
        ret = get_errno(fstatfs(arg1, &stfs));
2783
        goto convert_statfs64;
2784
#endif
2785
#ifdef TARGET_NR_ioperm
2786
    case TARGET_NR_ioperm:
2787
        goto unimplemented;
2788
#endif
2789
    case TARGET_NR_socketcall:
2790
        ret = do_socketcall(arg1, arg2);
2791
        break;
2792

    
2793
#ifdef TARGET_NR_accept
2794
    case TARGET_NR_accept:
2795
        ret = do_accept(arg1, arg2, arg3);
2796
        break;
2797
#endif
2798
#ifdef TARGET_NR_bind
2799
    case TARGET_NR_bind:
2800
        ret = do_bind(arg1, arg2, arg3);
2801
        break;
2802
#endif
2803
#ifdef TARGET_NR_connect
2804
    case TARGET_NR_connect:
2805
        ret = do_connect(arg1, arg2, arg3);
2806
        break;
2807
#endif
2808
#ifdef TARGET_NR_getpeername
2809
    case TARGET_NR_getpeername:
2810
        ret = do_getpeername(arg1, arg2, arg3);
2811
        break;
2812
#endif
2813
#ifdef TARGET_NR_getsockname
2814
    case TARGET_NR_getsockname:
2815
        ret = do_getsockname(arg1, arg2, arg3);
2816
        break;
2817
#endif
2818
#ifdef TARGET_NR_getsockopt
2819
    case TARGET_NR_getsockopt:
2820
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
2821
        break;
2822
#endif
2823
#ifdef TARGET_NR_listen
2824
    case TARGET_NR_listen:
2825
        ret = get_errno(listen(arg1, arg2));
2826
        break;
2827
#endif
2828
#ifdef TARGET_NR_recv
2829
    case TARGET_NR_recv:
2830
        ret = do_recvfrom(arg1, arg1, arg3, arg4, 0, 0);
2831
        break;
2832
#endif
2833
#ifdef TARGET_NR_recvfrom
2834
    case TARGET_NR_recvfrom:
2835
        ret = do_recvfrom(arg1, arg1, arg3, arg4, arg5, arg6);
2836
        break;
2837
#endif
2838
#ifdef TARGET_NR_recvmsg
2839
    case TARGET_NR_recvmsg:
2840
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
2841
        break;
2842
#endif
2843
#ifdef TARGET_NR_send
2844
    case TARGET_NR_send:
2845
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
2846
        break;
2847
#endif
2848
#ifdef TARGET_NR_sendmsg
2849
    case TARGET_NR_sendmsg:
2850
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
2851
        break;
2852
#endif
2853
#ifdef TARGET_NR_sendto
2854
    case TARGET_NR_sendto:
2855
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
2856
        break;
2857
#endif
2858
#ifdef TARGET_NR_shutdown
2859
    case TARGET_NR_shutdown:
2860
        ret = get_errno(shutdown(arg1, arg2));
2861
        break;
2862
#endif
2863
#ifdef TARGET_NR_socket
2864
    case TARGET_NR_socket:
2865
        ret = do_socket(arg1, arg2, arg3);
2866
        break;
2867
#endif
2868
#ifdef TARGET_NR_socketpair
2869
    case TARGET_NR_socketpair:
2870
        ret = do_socketpair(arg1, arg2, arg3, arg4);
2871
        break;
2872
#endif
2873
#ifdef TARGET_NR_setsockopt
2874
    case TARGET_NR_setsockopt:
2875
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
2876
        break;
2877
#endif
2878
        
2879
    case TARGET_NR_syslog:
2880
        goto unimplemented;
2881
    case TARGET_NR_setitimer:
2882
        {
2883
            struct itimerval value, ovalue, *pvalue;
2884

    
2885
            if (arg2) {
2886
                pvalue = &value;
2887
                target_to_host_timeval(&pvalue->it_interval, 
2888
                                       arg2);
2889
                target_to_host_timeval(&pvalue->it_value, 
2890
                                       arg2 + sizeof(struct target_timeval));
2891
            } else {
2892
                pvalue = NULL;
2893
            }
2894
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2895
            if (!is_error(ret) && arg3) {
2896
                host_to_target_timeval(arg3,
2897
                                       &ovalue.it_interval);
2898
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
2899
                                       &ovalue.it_value);
2900
            }
2901
        }
2902
        break;
2903
    case TARGET_NR_getitimer:
2904
        {
2905
            struct itimerval value;
2906
            
2907
            ret = get_errno(getitimer(arg1, &value));
2908
            if (!is_error(ret) && arg2) {
2909
                host_to_target_timeval(arg2,
2910
                                       &value.it_interval);
2911
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
2912
                                       &value.it_value);
2913
            }
2914
        }
2915
        break;
2916
    case TARGET_NR_stat:
2917
        p = lock_user_string(arg1);
2918
        ret = get_errno(stat(path(p), &st));
2919
        unlock_user(p, arg1, 0);
2920
        goto do_stat;
2921
    case TARGET_NR_lstat:
2922
        p = lock_user_string(arg1);
2923
        ret = get_errno(lstat(path(p), &st));
2924
        unlock_user(p, arg1, 0);
2925
        goto do_stat;
2926
    case TARGET_NR_fstat:
2927
        {
2928
            ret = get_errno(fstat(arg1, &st));
2929
        do_stat:
2930
            if (!is_error(ret)) {
2931
                struct target_stat *target_st;
2932
                
2933
                lock_user_struct(target_st, arg2, 0);
2934
                target_st->st_dev = tswap16(st.st_dev);
2935
                target_st->st_ino = tswapl(st.st_ino);
2936
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
2937
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2938
                target_st->st_uid = tswap32(st.st_uid);
2939
                target_st->st_gid = tswap32(st.st_gid);
2940
#else
2941
                target_st->st_mode = tswap16(st.st_mode);
2942
                target_st->st_uid = tswap16(st.st_uid);
2943
                target_st->st_gid = tswap16(st.st_gid);
2944
#endif
2945
                target_st->st_nlink = tswap16(st.st_nlink);
2946
                target_st->st_rdev = tswap16(st.st_rdev);
2947
                target_st->st_size = tswapl(st.st_size);
2948
                target_st->st_blksize = tswapl(st.st_blksize);
2949
                target_st->st_blocks = tswapl(st.st_blocks);
2950
                target_st->target_st_atime = tswapl(st.st_atime);
2951
                target_st->target_st_mtime = tswapl(st.st_mtime);
2952
                target_st->target_st_ctime = tswapl(st.st_ctime);
2953
                unlock_user_struct(target_st, arg2, 1);
2954
            }
2955
        }
2956
        break;
2957
#ifdef TARGET_NR_olduname
2958
    case TARGET_NR_olduname:
2959
        goto unimplemented;
2960
#endif
2961
#ifdef TARGET_NR_iopl
2962
    case TARGET_NR_iopl:
2963
        goto unimplemented;
2964
#endif
2965
    case TARGET_NR_vhangup:
2966
        ret = get_errno(vhangup());
2967
        break;
2968
#ifdef TARGET_NR_idle
2969
    case TARGET_NR_idle:
2970
        goto unimplemented;
2971
#endif
2972
#ifdef TARGET_NR_syscall
2973
    case TARGET_NR_syscall:
2974
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
2975
            break;
2976
#endif
2977
    case TARGET_NR_wait4:
2978
        {
2979
            int status;
2980
            target_long status_ptr = arg2;
2981
            struct rusage rusage, *rusage_ptr;
2982
            target_ulong target_rusage = arg4;
2983
            if (target_rusage)
2984
                rusage_ptr = &rusage;
2985
            else
2986
                rusage_ptr = NULL;
2987
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2988
            if (!is_error(ret)) {
2989
                if (status_ptr)
2990
                    tputl(status_ptr, status);
2991
                if (target_rusage) {
2992
                    host_to_target_rusage(target_rusage, &rusage);
2993
                }
2994
            }
2995
        }
2996
        break;
2997
    case TARGET_NR_swapoff:
2998
        p = lock_user_string(arg1);
2999
        ret = get_errno(swapoff(p));
3000
        unlock_user(p, arg1, 0);
3001
        break;
3002
    case TARGET_NR_sysinfo:
3003
        {
3004
            struct target_sysinfo *target_value;
3005
            struct sysinfo value;
3006
            ret = get_errno(sysinfo(&value));
3007
            if (!is_error(ret) && arg1)
3008
            {
3009
                /* ??? __put_user is probably wrong.  */
3010
                lock_user_struct(target_value, arg1, 0);
3011
                __put_user(value.uptime, &target_value->uptime);
3012
                __put_user(value.loads[0], &target_value->loads[0]);
3013
                __put_user(value.loads[1], &target_value->loads[1]);
3014
                __put_user(value.loads[2], &target_value->loads[2]);
3015
                __put_user(value.totalram, &target_value->totalram);
3016
                __put_user(value.freeram, &target_value->freeram);
3017
                __put_user(value.sharedram, &target_value->sharedram);
3018
                __put_user(value.bufferram, &target_value->bufferram);
3019
                __put_user(value.totalswap, &target_value->totalswap);
3020
                __put_user(value.freeswap, &target_value->freeswap);
3021
                __put_user(value.procs, &target_value->procs);
3022
                __put_user(value.totalhigh, &target_value->totalhigh);
3023
                __put_user(value.freehigh, &target_value->freehigh);
3024
                __put_user(value.mem_unit, &target_value->mem_unit);
3025
                unlock_user_struct(target_value, arg1, 1);
3026
            }
3027
        }
3028
        break;
3029
    case TARGET_NR_ipc:
3030
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3031
        break;
3032
    case TARGET_NR_fsync:
3033
        ret = get_errno(fsync(arg1));
3034
        break;
3035
    case TARGET_NR_clone:
3036
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3037
        break;
3038
#ifdef __NR_exit_group
3039
        /* new thread calls */
3040
    case TARGET_NR_exit_group:
3041
        gdb_exit(cpu_env, arg1);
3042
        ret = get_errno(exit_group(arg1));
3043
        break;
3044
#endif
3045
    case TARGET_NR_setdomainname:
3046
        p = lock_user_string(arg1);
3047
        ret = get_errno(setdomainname(p, arg2));
3048
        unlock_user(p, arg1, 0);
3049
        break;
3050
    case TARGET_NR_uname:
3051
        /* no need to transcode because we use the linux syscall */
3052
        {
3053
            struct new_utsname * buf;
3054
    
3055
            lock_user_struct(buf, arg1, 0);
3056
            ret = get_errno(sys_uname(buf));
3057
            if (!is_error(ret)) {
3058
                /* Overrite the native machine name with whatever is being
3059
                   emulated. */
3060
                strcpy (buf->machine, UNAME_MACHINE);
3061
                /* Allow the user to override the reported release.  */
3062
                if (qemu_uname_release && *qemu_uname_release)
3063
                  strcpy (buf->release, qemu_uname_release);
3064
            }
3065
            unlock_user_struct(buf, arg1, 1);
3066
        }
3067
        break;
3068
#ifdef TARGET_I386
3069
    case TARGET_NR_modify_ldt:
3070
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3071
        break;
3072
    case TARGET_NR_vm86old:
3073
        goto unimplemented;
3074
    case TARGET_NR_vm86:
3075
        ret = do_vm86(cpu_env, arg1, arg2);
3076
        break;
3077
#endif
3078
    case TARGET_NR_adjtimex:
3079
        goto unimplemented;
3080
    case TARGET_NR_create_module:
3081
    case TARGET_NR_init_module:
3082
    case TARGET_NR_delete_module:
3083
    case TARGET_NR_get_kernel_syms:
3084
        goto unimplemented;
3085
    case TARGET_NR_quotactl:
3086
        goto unimplemented;
3087
    case TARGET_NR_getpgid:
3088
        ret = get_errno(getpgid(arg1));
3089
        break;
3090
    case TARGET_NR_fchdir:
3091
        ret = get_errno(fchdir(arg1));
3092
        break;
3093
    case TARGET_NR_bdflush:
3094
        goto unimplemented;
3095
    case TARGET_NR_sysfs:
3096
        goto unimplemented;
3097
    case TARGET_NR_personality:
3098
        ret = get_errno(personality(arg1));
3099
        break;
3100
    case TARGET_NR_afs_syscall:
3101
        goto unimplemented;
3102
    case TARGET_NR__llseek:
3103
        {
3104
#if defined (__x86_64__)
3105
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
3106
            tput64(arg4, ret);
3107
#else
3108
            int64_t res;
3109
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
3110
            tput64(arg4, res);
3111
#endif
3112
        }
3113
        break;
3114
    case TARGET_NR_getdents:
3115
#if TARGET_LONG_SIZE != 4
3116
        goto unimplemented;
3117
#warning not supported
3118
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
3119
        {
3120
            struct target_dirent *target_dirp;
3121
            struct dirent *dirp;
3122
            long count = arg3;
3123

    
3124
            dirp = malloc(count);
3125
            if (!dirp)
3126
                return -ENOMEM;
3127
            
3128
            ret = get_errno(sys_getdents(arg1, dirp, count));
3129
            if (!is_error(ret)) {
3130
                struct dirent *de;
3131
                struct target_dirent *tde;
3132
                int len = ret;
3133
                int reclen, treclen;
3134
                int count1, tnamelen;
3135

    
3136
                count1 = 0;
3137
                de = dirp;
3138
                target_dirp = lock_user(arg2, count, 0);
3139
                tde = target_dirp;
3140
                while (len > 0) {
3141
                    reclen = de->d_reclen;
3142
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
3143
                    tde->d_reclen = tswap16(treclen);
3144
                    tde->d_ino = tswapl(de->d_ino);
3145
                    tde->d_off = tswapl(de->d_off);
3146
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
3147
                    if (tnamelen > 256)
3148
                        tnamelen = 256;
3149
                    /* XXX: may not be correct */
3150
                    strncpy(tde->d_name, de->d_name, tnamelen);
3151
                    de = (struct dirent *)((char *)de + reclen);
3152
                    len -= reclen;
3153
                    tde = (struct dirent *)((char *)tde + treclen);
3154
                    count1 += treclen;
3155
                }
3156
                ret = count1;
3157
            }
3158
            unlock_user(target_dirp, arg2, ret);
3159
            free(dirp);
3160
        }
3161
#else
3162
        {
3163
            struct dirent *dirp;
3164
            long count = arg3;
3165

    
3166
            dirp = lock_user(arg2, count, 0);
3167
            ret = get_errno(sys_getdents(arg1, dirp, count));
3168
            if (!is_error(ret)) {
3169
                struct dirent *de;
3170
                int len = ret;
3171
                int reclen;
3172
                de = dirp;
3173
                while (len > 0) {
3174
                    reclen = de->d_reclen;
3175
                    if (reclen > len)
3176
                        break;
3177
                    de->d_reclen = tswap16(reclen);
3178
                    tswapls(&de->d_ino);
3179
                    tswapls(&de->d_off);
3180
                    de = (struct dirent *)((char *)de + reclen);
3181
                    len -= reclen;
3182
                }
3183
            }
3184
            unlock_user(dirp, arg2, ret);
3185
        }
3186
#endif
3187
        break;
3188
#ifdef TARGET_NR_getdents64
3189
    case TARGET_NR_getdents64:
3190
        {
3191
            struct dirent64 *dirp;
3192
            long count = arg3;
3193
            dirp = lock_user(arg2, count, 0);
3194
            ret = get_errno(sys_getdents64(arg1, dirp, count));
3195
            if (!is_error(ret)) {
3196
                struct dirent64 *de;
3197
                int len = ret;
3198
                int reclen;
3199
                de = dirp;
3200
                while (len > 0) {
3201
                    reclen = de->d_reclen;
3202
                    if (reclen > len)
3203
                        break;
3204
                    de->d_reclen = tswap16(reclen);
3205
                    tswap64s(&de->d_ino);
3206
                    tswap64s(&de->d_off);
3207
                    de = (struct dirent64 *)((char *)de + reclen);
3208
                    len -= reclen;
3209
                }
3210
            }
3211
            unlock_user(dirp, arg2, ret);
3212
        }
3213
        break;
3214
#endif /* TARGET_NR_getdents64 */
3215
    case TARGET_NR__newselect:
3216
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
3217
        break;
3218
    case TARGET_NR_poll:
3219
        {
3220
            struct target_pollfd *target_pfd;
3221
            unsigned int nfds = arg2;
3222
            int timeout = arg3;
3223
            struct pollfd *pfd;
3224
            unsigned int i;
3225

    
3226
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3227
            pfd = alloca(sizeof(struct pollfd) * nfds);
3228
            for(i = 0; i < nfds; i++) {
3229
                pfd[i].fd = tswap32(target_pfd[i].fd);
3230
                pfd[i].events = tswap16(target_pfd[i].events);
3231
            }
3232
            ret = get_errno(poll(pfd, nfds, timeout));
3233
            if (!is_error(ret)) {
3234
                for(i = 0; i < nfds; i++) {
3235
                    target_pfd[i].revents = tswap16(pfd[i].revents);
3236
                }
3237
                ret += nfds * (sizeof(struct target_pollfd)
3238
                               - sizeof(struct pollfd));
3239
            }
3240
            unlock_user(target_pfd, arg1, ret);
3241
        }
3242
        break;
3243
    case TARGET_NR_flock:
3244
        /* NOTE: the flock constant seems to be the same for every
3245
           Linux platform */
3246
        ret = get_errno(flock(arg1, arg2));
3247
        break;
3248
    case TARGET_NR_readv:
3249
        {
3250
            int count = arg3;
3251
            struct iovec *vec;
3252

    
3253
            vec = alloca(count * sizeof(struct iovec));
3254
            lock_iovec(vec, arg2, count, 0);
3255
            ret = get_errno(readv(arg1, vec, count));
3256
            unlock_iovec(vec, arg2, count, 1);
3257
        }
3258
        break;
3259
    case TARGET_NR_writev:
3260
        {
3261
            int count = arg3;
3262
            struct iovec *vec;
3263

    
3264
            vec = alloca(count * sizeof(struct iovec));
3265
            lock_iovec(vec, arg2, count, 1);
3266
            ret = get_errno(writev(arg1, vec, count));
3267
            unlock_iovec(vec, arg2, count, 0);
3268
        }
3269
        break;
3270
    case TARGET_NR_getsid:
3271
        ret = get_errno(getsid(arg1));
3272
        break;
3273
    case TARGET_NR_fdatasync:
3274
        ret = get_errno(fdatasync(arg1));
3275
        break;
3276
    case TARGET_NR__sysctl:
3277
        /* We don't implement this, but ENODIR is always a safe
3278
           return value. */
3279
        return -ENOTDIR;
3280
    case TARGET_NR_sched_setparam:
3281
        {
3282
            struct sched_param *target_schp;
3283
            struct sched_param schp;
3284

    
3285
            lock_user_struct(target_schp, arg2, 1);
3286
            schp.sched_priority = tswap32(target_schp->sched_priority);
3287
            unlock_user_struct(target_schp, arg2, 0);
3288
            ret = get_errno(sched_setparam(arg1, &schp));
3289
        }
3290
        break;
3291
    case TARGET_NR_sched_getparam:
3292
        {
3293
            struct sched_param *target_schp;
3294
            struct sched_param schp;
3295
            ret = get_errno(sched_getparam(arg1, &schp));
3296
            if (!is_error(ret)) {
3297
                lock_user_struct(target_schp, arg2, 0);
3298
                target_schp->sched_priority = tswap32(schp.sched_priority);
3299
                unlock_user_struct(target_schp, arg2, 1);
3300
            }
3301
        }
3302
        break;
3303
    case TARGET_NR_sched_setscheduler:
3304
        {
3305
            struct sched_param *target_schp;
3306
            struct sched_param schp;
3307
            lock_user_struct(target_schp, arg3, 1);
3308
            schp.sched_priority = tswap32(target_schp->sched_priority);
3309
            unlock_user_struct(target_schp, arg3, 0);
3310
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3311
        }
3312
        break;
3313
    case TARGET_NR_sched_getscheduler:
3314
        ret = get_errno(sched_getscheduler(arg1));
3315
        break;
3316
    case TARGET_NR_sched_yield:
3317
        ret = get_errno(sched_yield());
3318
        break;
3319
    case TARGET_NR_sched_get_priority_max:
3320
        ret = get_errno(sched_get_priority_max(arg1));
3321
        break;
3322
    case TARGET_NR_sched_get_priority_min:
3323
        ret = get_errno(sched_get_priority_min(arg1));
3324
        break;
3325
    case TARGET_NR_sched_rr_get_interval:
3326
        {
3327
            struct timespec ts;
3328
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
3329
            if (!is_error(ret)) {
3330
                host_to_target_timespec(arg2, &ts);
3331
            }
3332
        }
3333
        break;
3334
    case TARGET_NR_nanosleep:
3335
        {
3336
            struct timespec req, rem;
3337
            target_to_host_timespec(&req, arg1);
3338
            ret = get_errno(nanosleep(&req, &rem));
3339
            if (is_error(ret) && arg2) {
3340
                host_to_target_timespec(arg2, &rem);
3341
            }
3342
        }
3343
        break;
3344
    case TARGET_NR_query_module:
3345
        goto unimplemented;
3346
    case TARGET_NR_nfsservctl:
3347
        goto unimplemented;
3348
    case TARGET_NR_prctl:
3349
        goto unimplemented;
3350
#ifdef TARGET_NR_pread
3351
    case TARGET_NR_pread:
3352
        page_unprotect_range(arg2, arg3);
3353
        p = lock_user(arg2, arg3, 0);
3354
        ret = get_errno(pread(arg1, p, arg3, arg4));
3355
        unlock_user(p, arg2, ret);
3356
        break;
3357
    case TARGET_NR_pwrite:
3358
        p = lock_user(arg2, arg3, 1);
3359
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
3360
        unlock_user(p, arg2, 0);
3361
        break;
3362
#endif
3363
    case TARGET_NR_getcwd:
3364
        p = lock_user(arg1, arg2, 0);
3365
        ret = get_errno(sys_getcwd1(p, arg2));
3366
        unlock_user(p, arg1, ret);
3367
        break;
3368
    case TARGET_NR_capget:
3369
        goto unimplemented;
3370
    case TARGET_NR_capset:
3371
        goto unimplemented;
3372
    case TARGET_NR_sigaltstack:
3373
        goto unimplemented;
3374
    case TARGET_NR_sendfile:
3375
        goto unimplemented;
3376
#ifdef TARGET_NR_getpmsg
3377
    case TARGET_NR_getpmsg:
3378
        goto unimplemented;
3379
#endif
3380
#ifdef TARGET_NR_putpmsg
3381
    case TARGET_NR_putpmsg:
3382
        goto unimplemented;
3383
#endif
3384
#ifdef TARGET_NR_vfork
3385
    case TARGET_NR_vfork:
3386
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3387
        break;
3388
#endif
3389
#ifdef TARGET_NR_ugetrlimit
3390
    case TARGET_NR_ugetrlimit:
3391
    {
3392
        struct rlimit rlim;
3393
        ret = get_errno(getrlimit(arg1, &rlim));
3394
        if (!is_error(ret)) {
3395
            struct target_rlimit *target_rlim;
3396
            lock_user_struct(target_rlim, arg2, 0);
3397
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3398
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
3399
            unlock_user_struct(target_rlim, arg2, 1);
3400
        }
3401
        break;
3402
    }
3403
#endif
3404
#ifdef TARGET_NR_truncate64
3405
    case TARGET_NR_truncate64:
3406
        p = lock_user_string(arg1);
3407
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3408
        unlock_user(p, arg1, 0);
3409
        break;
3410
#endif
3411
#ifdef TARGET_NR_ftruncate64
3412
    case TARGET_NR_ftruncate64:
3413
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3414
        break;
3415
#endif
3416
#ifdef TARGET_NR_stat64
3417
    case TARGET_NR_stat64:
3418
        p = lock_user_string(arg1);
3419
        ret = get_errno(stat(path(p), &st));
3420
        unlock_user(p, arg1, 0);
3421
        goto do_stat64;
3422
#endif
3423
#ifdef TARGET_NR_lstat64
3424
    case TARGET_NR_lstat64:
3425
        p = lock_user_string(arg1);
3426
        ret = get_errno(lstat(path(p), &st));
3427
        unlock_user(p, arg1, 0);
3428
        goto do_stat64;
3429
#endif
3430
#ifdef TARGET_NR_fstat64
3431
    case TARGET_NR_fstat64:
3432
        {
3433
            ret = get_errno(fstat(arg1, &st));
3434
        do_stat64:
3435
            if (!is_error(ret)) {
3436
#ifdef TARGET_ARM
3437
                if (((CPUARMState *)cpu_env)->eabi) {
3438
                    struct target_eabi_stat64 *target_st;
3439
                    lock_user_struct(target_st, arg2, 1);
3440
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
3441
                    /* put_user is probably wrong.  */
3442
                    put_user(st.st_dev, &target_st->st_dev);
3443
                    put_user(st.st_ino, &target_st->st_ino);
3444
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3445
                    put_user(st.st_ino, &target_st->__st_ino);
3446
#endif
3447
                    put_user(st.st_mode, &target_st->st_mode);
3448
                    put_user(st.st_nlink, &target_st->st_nlink);
3449
                    put_user(st.st_uid, &target_st->st_uid);
3450
                    put_user(st.st_gid, &target_st->st_gid);
3451
                    put_user(st.st_rdev, &target_st->st_rdev);
3452
                    /* XXX: better use of kernel struct */
3453
                    put_user(st.st_size, &target_st->st_size);
3454
                    put_user(st.st_blksize, &target_st->st_blksize);
3455
                    put_user(st.st_blocks, &target_st->st_blocks);
3456
                    put_user(st.st_atime, &target_st->target_st_atime);
3457
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3458
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3459
                    unlock_user_struct(target_st, arg2, 0);
3460
                } else
3461
#endif
3462
                {
3463
                    struct target_stat64 *target_st;
3464
                    lock_user_struct(target_st, arg2, 1);
3465
                    memset(target_st, 0, sizeof(struct target_stat64));
3466
                    /* ??? put_user is probably wrong.  */
3467
                    put_user(st.st_dev, &target_st->st_dev);
3468
                    put_user(st.st_ino, &target_st->st_ino);
3469
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3470
                    put_user(st.st_ino, &target_st->__st_ino);
3471
#endif
3472
                    put_user(st.st_mode, &target_st->st_mode);
3473
                    put_user(st.st_nlink, &target_st->st_nlink);
3474
                    put_user(st.st_uid, &target_st->st_uid);
3475
                    put_user(st.st_gid, &target_st->st_gid);
3476
                    put_user(st.st_rdev, &target_st->st_rdev);
3477
                    /* XXX: better use of kernel struct */
3478
                    put_user(st.st_size, &target_st->st_size);
3479
                    put_user(st.st_blksize, &target_st->st_blksize);
3480
                    put_user(st.st_blocks, &target_st->st_blocks);
3481
                    put_user(st.st_atime, &target_st->target_st_atime);
3482
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3483
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3484
                    unlock_user_struct(target_st, arg2, 0);
3485
                }
3486
            }
3487
        }
3488
        break;
3489
#endif
3490
#ifdef USE_UID16
3491
    case TARGET_NR_lchown:
3492
        p = lock_user_string(arg1);
3493
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3494
        unlock_user(p, arg1, 0);
3495
        break;
3496
    case TARGET_NR_getuid:
3497
        ret = get_errno(high2lowuid(getuid()));
3498
        break;
3499
    case TARGET_NR_getgid:
3500
        ret = get_errno(high2lowgid(getgid()));
3501
        break;
3502
    case TARGET_NR_geteuid:
3503
        ret = get_errno(high2lowuid(geteuid()));
3504
        break;
3505
    case TARGET_NR_getegid:
3506
        ret = get_errno(high2lowgid(getegid()));
3507
        break;
3508
    case TARGET_NR_setreuid:
3509
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3510
        break;
3511
    case TARGET_NR_setregid:
3512
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3513
        break;
3514
    case TARGET_NR_getgroups:
3515
        {
3516
            int gidsetsize = arg1;
3517
            uint16_t *target_grouplist;
3518
            gid_t *grouplist;
3519
            int i;
3520

    
3521
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3522
            ret = get_errno(getgroups(gidsetsize, grouplist));
3523
            if (!is_error(ret)) {
3524
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3525
                for(i = 0;i < gidsetsize; i++)
3526
                    target_grouplist[i] = tswap16(grouplist[i]);
3527
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
3528
            }
3529
        }
3530
        break;
3531
    case TARGET_NR_setgroups:
3532
        {
3533
            int gidsetsize = arg1;
3534
            uint16_t *target_grouplist;
3535
            gid_t *grouplist;
3536
            int i;
3537

    
3538
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3539
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3540
            for(i = 0;i < gidsetsize; i++)
3541
                grouplist[i] = tswap16(target_grouplist[i]);
3542
            unlock_user(target_grouplist, arg2, 0);
3543
            ret = get_errno(setgroups(gidsetsize, grouplist));
3544
        }
3545
        break;
3546
    case TARGET_NR_fchown:
3547
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3548
        break;
3549
#ifdef TARGET_NR_setresuid
3550
    case TARGET_NR_setresuid:
3551
        ret = get_errno(setresuid(low2highuid(arg1), 
3552
                                  low2highuid(arg2), 
3553
                                  low2highuid(arg3)));
3554
        break;
3555
#endif
3556
#ifdef TARGET_NR_getresuid
3557
    case TARGET_NR_getresuid:
3558
        {
3559
            uid_t ruid, euid, suid;
3560
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3561
            if (!is_error(ret)) {
3562
                tput16(arg1, tswap16(high2lowuid(ruid)));
3563
                tput16(arg2, tswap16(high2lowuid(euid)));
3564
                tput16(arg3, tswap16(high2lowuid(suid)));
3565
            }
3566
        }
3567
        break;
3568
#endif
3569
#ifdef TARGET_NR_getresgid
3570
    case TARGET_NR_setresgid:
3571
        ret = get_errno(setresgid(low2highgid(arg1), 
3572
                                  low2highgid(arg2), 
3573
                                  low2highgid(arg3)));
3574
        break;
3575
#endif
3576
#ifdef TARGET_NR_getresgid
3577
    case TARGET_NR_getresgid:
3578
        {
3579
            gid_t rgid, egid, sgid;
3580
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3581
            if (!is_error(ret)) {
3582
                tput16(arg1, tswap16(high2lowgid(rgid)));
3583
                tput16(arg2, tswap16(high2lowgid(egid)));
3584
                tput16(arg3, tswap16(high2lowgid(sgid)));
3585
            }
3586
        }
3587
        break;
3588
#endif
3589
    case TARGET_NR_chown:
3590
        p = lock_user_string(arg1);
3591
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3592
        unlock_user(p, arg1, 0);
3593
        break;
3594
    case TARGET_NR_setuid:
3595
        ret = get_errno(setuid(low2highuid(arg1)));
3596
        break;
3597
    case TARGET_NR_setgid:
3598
        ret = get_errno(setgid(low2highgid(arg1)));
3599
        break;
3600
    case TARGET_NR_setfsuid:
3601
        ret = get_errno(setfsuid(arg1));
3602
        break;
3603
    case TARGET_NR_setfsgid:
3604
        ret = get_errno(setfsgid(arg1));
3605
        break;
3606
#endif /* USE_UID16 */
3607

    
3608
#ifdef TARGET_NR_lchown32
3609
    case TARGET_NR_lchown32:
3610
        p = lock_user_string(arg1);
3611
        ret = get_errno(lchown(p, arg2, arg3));
3612
        unlock_user(p, arg1, 0);
3613
        break;
3614
#endif
3615
#ifdef TARGET_NR_getuid32
3616
    case TARGET_NR_getuid32:
3617
        ret = get_errno(getuid());
3618
        break;
3619
#endif
3620
#ifdef TARGET_NR_getgid32
3621
    case TARGET_NR_getgid32:
3622
        ret = get_errno(getgid());
3623
        break;
3624
#endif
3625
#ifdef TARGET_NR_geteuid32
3626
    case TARGET_NR_geteuid32:
3627
        ret = get_errno(geteuid());
3628
        break;
3629
#endif
3630
#ifdef TARGET_NR_getegid32
3631
    case TARGET_NR_getegid32:
3632
        ret = get_errno(getegid());
3633
        break;
3634
#endif
3635
#ifdef TARGET_NR_setreuid32
3636
    case TARGET_NR_setreuid32:
3637
        ret = get_errno(setreuid(arg1, arg2));
3638
        break;
3639
#endif
3640
#ifdef TARGET_NR_setregid32
3641
    case TARGET_NR_setregid32:
3642
        ret = get_errno(setregid(arg1, arg2));
3643
        break;
3644
#endif
3645
#ifdef TARGET_NR_getgroups32
3646
    case TARGET_NR_getgroups32:
3647
        {
3648
            int gidsetsize = arg1;
3649
            uint32_t *target_grouplist;
3650
            gid_t *grouplist;
3651
            int i;
3652

    
3653
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3654
            ret = get_errno(getgroups(gidsetsize, grouplist));
3655
            if (!is_error(ret)) {
3656
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3657
                for(i = 0;i < gidsetsize; i++)
3658
                    target_grouplist[i] = tswap32(grouplist[i]);
3659
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
3660
            }
3661
        }
3662
        break;
3663
#endif
3664
#ifdef TARGET_NR_setgroups32
3665
    case TARGET_NR_setgroups32:
3666
        {
3667
            int gidsetsize = arg1;
3668
            uint32_t *target_grouplist;
3669
            gid_t *grouplist;
3670
            int i;
3671
            
3672
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3673
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3674
            for(i = 0;i < gidsetsize; i++)
3675
                grouplist[i] = tswap32(target_grouplist[i]);
3676
            unlock_user(target_grouplist, arg2, 0);
3677
            ret = get_errno(setgroups(gidsetsize, grouplist));
3678
        }
3679
        break;
3680
#endif
3681
#ifdef TARGET_NR_fchown32
3682
    case TARGET_NR_fchown32:
3683
        ret = get_errno(fchown(arg1, arg2, arg3));
3684
        break;
3685
#endif
3686
#ifdef TARGET_NR_setresuid32
3687
    case TARGET_NR_setresuid32:
3688
        ret = get_errno(setresuid(arg1, arg2, arg3));
3689
        break;
3690
#endif
3691
#ifdef TARGET_NR_getresuid32
3692
    case TARGET_NR_getresuid32:
3693
        {
3694
            uid_t ruid, euid, suid;
3695
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3696
            if (!is_error(ret)) {
3697
                tput32(arg1, tswap32(ruid));
3698
                tput32(arg2, tswap32(euid));
3699
                tput32(arg3, tswap32(suid));
3700
            }
3701
        }
3702
        break;
3703
#endif
3704
#ifdef TARGET_NR_setresgid32
3705
    case TARGET_NR_setresgid32:
3706
        ret = get_errno(setresgid(arg1, arg2, arg3));
3707
        break;
3708
#endif
3709
#ifdef TARGET_NR_getresgid32
3710
    case TARGET_NR_getresgid32:
3711
        {
3712
            gid_t rgid, egid, sgid;
3713
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3714
            if (!is_error(ret)) {
3715
                tput32(arg1, tswap32(rgid));
3716
                tput32(arg2, tswap32(egid));
3717
                tput32(arg3, tswap32(sgid));
3718
            }
3719
        }
3720
        break;
3721
#endif
3722
#ifdef TARGET_NR_chown32
3723
    case TARGET_NR_chown32:
3724
        p = lock_user_string(arg1);
3725
        ret = get_errno(chown(p, arg2, arg3));
3726
        unlock_user(p, arg1, 0);
3727
        break;
3728
#endif
3729
#ifdef TARGET_NR_setuid32
3730
    case TARGET_NR_setuid32:
3731
        ret = get_errno(setuid(arg1));
3732
        break;
3733
#endif
3734
#ifdef TARGET_NR_setgid32
3735
    case TARGET_NR_setgid32:
3736
        ret = get_errno(setgid(arg1));
3737
        break;
3738
#endif
3739
#ifdef TARGET_NR_setfsuid32
3740
    case TARGET_NR_setfsuid32:
3741
        ret = get_errno(setfsuid(arg1));
3742
        break;
3743
#endif
3744
#ifdef TARGET_NR_setfsgid32
3745
    case TARGET_NR_setfsgid32:
3746
        ret = get_errno(setfsgid(arg1));
3747
        break;
3748
#endif
3749

    
3750
    case TARGET_NR_pivot_root:
3751
        goto unimplemented;
3752
#ifdef TARGET_NR_mincore
3753
    case TARGET_NR_mincore:
3754
        goto unimplemented;
3755
#endif
3756
#ifdef TARGET_NR_madvise
3757
    case TARGET_NR_madvise:
3758
        /* A straight passthrough may not be safe because qemu sometimes
3759
           turns private flie-backed mappings into anonymous mappings.
3760
           This will break MADV_DONTNEED.
3761
           This is a hint, so ignoring and returning success is ok.  */
3762
        ret = get_errno(0);
3763
        break;
3764
#endif
3765
#if TARGET_LONG_BITS == 32
3766
    case TARGET_NR_fcntl64:
3767
    {
3768
        struct flock64 fl;
3769
        struct target_flock64 *target_fl;
3770
#ifdef TARGET_ARM
3771
        struct target_eabi_flock64 *target_efl;
3772
#endif
3773

    
3774
        switch(arg2) {
3775
        case F_GETLK64:
3776
            ret = get_errno(fcntl(arg1, arg2, &fl));
3777
            if (ret == 0) {
3778
#ifdef TARGET_ARM
3779
                if (((CPUARMState *)cpu_env)->eabi) {
3780
                    lock_user_struct(target_efl, arg3, 0);
3781
                    target_efl->l_type = tswap16(fl.l_type);
3782
                    target_efl->l_whence = tswap16(fl.l_whence);
3783
                    target_efl->l_start = tswap64(fl.l_start);
3784
                    target_efl->l_len = tswap64(fl.l_len);
3785
                    target_efl->l_pid = tswapl(fl.l_pid);
3786
                    unlock_user_struct(target_efl, arg3, 1);
3787
                } else
3788
#endif
3789
                {
3790
                    lock_user_struct(target_fl, arg3, 0);
3791
                    target_fl->l_type = tswap16(fl.l_type);
3792
                    target_fl->l_whence = tswap16(fl.l_whence);
3793
                    target_fl->l_start = tswap64(fl.l_start);
3794
                    target_fl->l_len = tswap64(fl.l_len);
3795
                    target_fl->l_pid = tswapl(fl.l_pid);
3796
                    unlock_user_struct(target_fl, arg3, 1);
3797
                }
3798
            }
3799
            break;
3800

    
3801
        case F_SETLK64:
3802
        case F_SETLKW64:
3803
#ifdef TARGET_ARM
3804
            if (((CPUARMState *)cpu_env)->eabi) {
3805
                lock_user_struct(target_efl, arg3, 1);
3806
                fl.l_type = tswap16(target_efl->l_type);
3807
                fl.l_whence = tswap16(target_efl->l_whence);
3808
                fl.l_start = tswap64(target_efl->l_start);
3809
                fl.l_len = tswap64(target_efl->l_len);
3810
                fl.l_pid = tswapl(target_efl->l_pid);
3811
                unlock_user_struct(target_efl, arg3, 0);
3812
            } else
3813
#endif
3814
            {
3815
                lock_user_struct(target_fl, arg3, 1);
3816
                fl.l_type = tswap16(target_fl->l_type);
3817
                fl.l_whence = tswap16(target_fl->l_whence);
3818
                fl.l_start = tswap64(target_fl->l_start);
3819
                fl.l_len = tswap64(target_fl->l_len);
3820
                fl.l_pid = tswapl(target_fl->l_pid);
3821
                unlock_user_struct(target_fl, arg3, 0);
3822
            }
3823
            ret = get_errno(fcntl(arg1, arg2, &fl));
3824
            break;
3825
        default:
3826
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
3827
            break;
3828
        }
3829
        break;
3830
    }
3831
#endif
3832
#ifdef TARGET_NR_cacheflush
3833
    case TARGET_NR_cacheflush:
3834
        /* self-modifying code is handled automatically, so nothing needed */
3835
        ret = 0;
3836
        break;
3837
#endif
3838
#ifdef TARGET_NR_security
3839
    case TARGET_NR_security:
3840
        goto unimplemented;
3841
#endif
3842
#ifdef TARGET_NR_getpagesize
3843
    case TARGET_NR_getpagesize:
3844
        ret = TARGET_PAGE_SIZE;
3845
        break;
3846
#endif
3847
    case TARGET_NR_gettid:
3848
        ret = get_errno(gettid());
3849
        break;
3850
    case TARGET_NR_readahead:
3851
        goto unimplemented;
3852
#ifdef TARGET_NR_setxattr
3853
    case TARGET_NR_setxattr:
3854
    case TARGET_NR_lsetxattr:
3855
    case TARGET_NR_fsetxattr:
3856
    case TARGET_NR_getxattr:
3857
    case TARGET_NR_lgetxattr:
3858
    case TARGET_NR_fgetxattr:
3859
    case TARGET_NR_listxattr:
3860
    case TARGET_NR_llistxattr:
3861
    case TARGET_NR_flistxattr:
3862
    case TARGET_NR_removexattr:
3863
    case TARGET_NR_lremovexattr:
3864
    case TARGET_NR_fremovexattr:
3865
        goto unimplemented_nowarn;
3866
#endif
3867
#ifdef TARGET_NR_set_thread_area
3868
    case TARGET_NR_set_thread_area:
3869
    case TARGET_NR_get_thread_area:
3870
        goto unimplemented_nowarn;
3871
#endif
3872
#ifdef TARGET_NR_getdomainname
3873
    case TARGET_NR_getdomainname:
3874
        goto unimplemented_nowarn;
3875
#endif
3876
    default:
3877
    unimplemented:
3878
        gemu_log("qemu: Unsupported syscall: %d\n", num);
3879
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area) || defined(TARGET_NR_getdomainname)
3880
    unimplemented_nowarn:
3881
#endif
3882
        ret = -ENOSYS;
3883
        break;
3884
    }
3885
 fail:
3886
#ifdef DEBUG
3887
    gemu_log(" = %ld\n", ret);
3888
#endif
3889
    return ret;
3890
}
3891