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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/prctl.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/sem.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>
52
#include <netinet/tcp.h>
53

    
54
#define termios host_termios
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#define winsize host_winsize
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#define termio host_termio
57
#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 */
60

    
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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>
69

    
70
#include "qemu.h"
71

    
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//#define DEBUG
73

    
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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 */
77
#define USE_UID16
78
#endif
79

    
80
//#include <linux/msdos_fs.h>
81
#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])
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84

    
85
#undef _syscall0
86
#undef _syscall1
87
#undef _syscall2
88
#undef _syscall3
89
#undef _syscall4
90
#undef _syscall5
91
#undef _syscall6
92

    
93
#define _syscall0(type,name)                \
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type name (void)                        \
95
{                                        \
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        return syscall(__NR_##name);        \
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}
98

    
99
#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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}
104

    
105
#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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}
110

    
111
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
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type name (type1 arg1,type2 arg2,type3 arg3)                        \
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{                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3);                \
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}
116

    
117
#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)                                \
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{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4);                        \
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}
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#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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}
129

    
130

    
131
#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)        \
134
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6);        \
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}
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138

    
139
#define __NR_sys_uname __NR_uname
140
#define __NR_sys_getcwd1 __NR_getcwd
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#define __NR_sys_getdents __NR_getdents
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#define __NR_sys_getdents64 __NR_getdents64
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#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
144
#define __NR_sys_syslog __NR_syslog
145

    
146
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
147
#define __NR__llseek __NR_lseek
148
#endif
149

    
150
#ifdef __NR_gettid
151
_syscall0(int, gettid)
152
#else
153
static int gettid(void) {
154
    return -ENOSYS;
155
}
156
#endif
157
_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)
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_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
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#ifdef __NR_exit_group
166
_syscall1(int,exit_group,int,error_code)
167
#endif
168
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
169
_syscall1(int,set_tid_address,int *,tidptr)
170
#endif
171

    
172
extern int personality(int);
173
extern int flock(int, int);
174
extern int setfsuid(int);
175
extern int setfsgid(int);
176
extern int setresuid(uid_t, uid_t, uid_t);
177
extern int getresuid(uid_t *, uid_t *, uid_t *);
178
extern int setresgid(gid_t, gid_t, gid_t);
179
extern int getresgid(gid_t *, gid_t *, gid_t *);
180
extern int setgroups(int, gid_t *);
181

    
182
static inline long get_errno(long ret)
183
{
184
    if (ret == -1)
185
        return -errno;
186
    else
187
        return ret;
188
}
189

    
190
static inline int is_error(long ret)
191
{
192
    return (unsigned long)ret >= (unsigned long)(-4096);
193
}
194

    
195
static target_ulong target_brk;
196
static target_ulong target_original_brk;
197

    
198
void target_set_brk(target_ulong new_brk)
199
{
200
    target_original_brk = target_brk = new_brk;
201
}
202

    
203
long do_brk(target_ulong new_brk)
204
{
205
    target_ulong brk_page;
206
    long mapped_addr;
207
    int        new_alloc_size;
208

    
209
    if (!new_brk)
210
        return target_brk;
211
    if (new_brk < target_original_brk)
212
        return -ENOMEM;
213
    
214
    brk_page = HOST_PAGE_ALIGN(target_brk);
215

    
216
    /* If the new brk is less than this, set it and we're done... */
217
    if (new_brk < brk_page) {
218
        target_brk = new_brk;
219
            return target_brk;
220
    }
221

    
222
    /* We need to allocate more memory after the brk... */
223
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
224
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 
225
                                        PROT_READ|PROT_WRITE,
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                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
227
    if (is_error(mapped_addr)) {
228
        return mapped_addr;
229
    } else {
230
        target_brk = new_brk;
231
            return target_brk;
232
    }
233
}
234

    
235
static inline fd_set *target_to_host_fds(fd_set *fds, 
236
                                         target_long *target_fds, int n)
237
{
238
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
239
    return (fd_set *)target_fds;
240
#else
241
    int i, b;
242
    if (target_fds) {
243
        FD_ZERO(fds);
244
        for(i = 0;i < n; i++) {
245
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
246
                 (i & (TARGET_LONG_BITS - 1))) & 1;
247
            if (b)
248
                FD_SET(i, fds);
249
        }
250
        return fds;
251
    } else {
252
        return NULL;
253
    }
254
#endif
255
}
256

    
257
static inline void host_to_target_fds(target_long *target_fds, 
258
                                      fd_set *fds, int n)
259
{
260
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
261
    /* nothing to do */
262
#else
263
    int i, nw, j, k;
264
    target_long v;
265

    
266
    if (target_fds) {
267
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
268
        k = 0;
269
        for(i = 0;i < nw; i++) {
270
            v = 0;
271
            for(j = 0; j < TARGET_LONG_BITS; j++) {
272
                v |= ((FD_ISSET(k, fds) != 0) << j);
273
                k++;
274
            }
275
            target_fds[i] = tswapl(v);
276
        }
277
    }
278
#endif
279
}
280

    
281
#if defined(__alpha__)
282
#define HOST_HZ 1024
283
#else
284
#define HOST_HZ 100
285
#endif
286

    
287
static inline long host_to_target_clock_t(long ticks)
288
{
289
#if HOST_HZ == TARGET_HZ
290
    return ticks;
291
#else
292
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
293
#endif
294
}
295

    
296
static inline void host_to_target_rusage(target_ulong target_addr,
297
                                         const struct rusage *rusage)
298
{
299
    struct target_rusage *target_rusage;
300

    
301
    lock_user_struct(target_rusage, target_addr, 0);
302
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
303
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
304
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
305
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
306
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
307
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
308
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
309
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
310
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
311
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
312
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
313
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
314
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
315
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
316
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
317
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
318
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
319
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
320
    unlock_user_struct(target_rusage, target_addr, 1);
321
}
322

    
323
static inline void target_to_host_timeval(struct timeval *tv,
324
                                          target_ulong target_addr)
325
{
326
    struct target_timeval *target_tv;
327

    
328
    lock_user_struct(target_tv, target_addr, 1);
329
    tv->tv_sec = tswapl(target_tv->tv_sec);
330
    tv->tv_usec = tswapl(target_tv->tv_usec);
331
    unlock_user_struct(target_tv, target_addr, 0);
332
}
333

    
334
static inline void host_to_target_timeval(target_ulong target_addr,
335
                                          const struct timeval *tv)
336
{
337
    struct target_timeval *target_tv;
338

    
339
    lock_user_struct(target_tv, target_addr, 0);
340
    target_tv->tv_sec = tswapl(tv->tv_sec);
341
    target_tv->tv_usec = tswapl(tv->tv_usec);
342
    unlock_user_struct(target_tv, target_addr, 1);
343
}
344

    
345

    
346
static long do_select(long n, 
347
                      target_ulong rfd_p, target_ulong wfd_p, 
348
                      target_ulong efd_p, target_ulong target_tv)
349
{
350
    fd_set rfds, wfds, efds;
351
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
352
    target_long *target_rfds, *target_wfds, *target_efds;
353
    struct timeval tv, *tv_ptr;
354
    long ret;
355
    int ok;
356

    
357
    if (rfd_p) {
358
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
359
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
360
    } else {
361
        target_rfds = NULL;
362
        rfds_ptr = NULL;
363
    }
364
    if (wfd_p) {
365
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
366
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
367
    } else {
368
        target_wfds = NULL;
369
        wfds_ptr = NULL;
370
    }
371
    if (efd_p) {
372
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
373
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
374
    } else {
375
        target_efds = NULL;
376
        efds_ptr = NULL;
377
    }
378
            
379
    if (target_tv) {
380
        target_to_host_timeval(&tv, target_tv);
381
        tv_ptr = &tv;
382
    } else {
383
        tv_ptr = NULL;
384
    }
385
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
386
    ok = !is_error(ret);
387

    
388
    if (ok) {
389
        host_to_target_fds(target_rfds, rfds_ptr, n);
390
        host_to_target_fds(target_wfds, wfds_ptr, n);
391
        host_to_target_fds(target_efds, efds_ptr, n);
392

    
393
        if (target_tv) {
394
            host_to_target_timeval(target_tv, &tv);
395
        }
396
    }
397
    if (target_rfds)
398
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
399
    if (target_wfds)
400
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
401
    if (target_efds)
402
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
403

    
404
    return ret;
405
}
406

    
407
static inline void target_to_host_sockaddr(struct sockaddr *addr,
408
                                           target_ulong target_addr,
409
                                           socklen_t len)
410
{
411
    struct target_sockaddr *target_saddr;
412

    
413
    target_saddr = lock_user(target_addr, len, 1);
414
    memcpy(addr, target_saddr, len);
415
    addr->sa_family = tswap16(target_saddr->sa_family);
416
    unlock_user(target_saddr, target_addr, 0);
417
}
418

    
419
static inline void host_to_target_sockaddr(target_ulong target_addr,
420
                                           struct sockaddr *addr,
421
                                           socklen_t len)
422
{
423
    struct target_sockaddr *target_saddr;
424

    
425
    target_saddr = lock_user(target_addr, len, 0);
426
    memcpy(target_saddr, addr, len);
427
    target_saddr->sa_family = tswap16(addr->sa_family);
428
    unlock_user(target_saddr, target_addr, len);
429
}
430

    
431
/* ??? Should this also swap msgh->name?  */
432
static inline void target_to_host_cmsg(struct msghdr *msgh,
433
                                       struct target_msghdr *target_msgh)
434
{
435
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
436
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
437
    socklen_t space = 0;
438

    
439
    while (cmsg && target_cmsg) {
440
        void *data = CMSG_DATA(cmsg);
441
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
442

    
443
        int len = tswapl(target_cmsg->cmsg_len) 
444
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
445

    
446
        space += CMSG_SPACE(len);
447
        if (space > msgh->msg_controllen) {
448
            space -= CMSG_SPACE(len);
449
            gemu_log("Host cmsg overflow\n");
450
            break;
451
        }
452

    
453
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
454
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
455
        cmsg->cmsg_len = CMSG_LEN(len);
456

    
457
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
458
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
459
            memcpy(data, target_data, len);
460
        } else {
461
            int *fd = (int *)data;
462
            int *target_fd = (int *)target_data;
463
            int i, numfds = len / sizeof(int);
464

    
465
            for (i = 0; i < numfds; i++)
466
                fd[i] = tswap32(target_fd[i]);
467
        }
468

    
469
        cmsg = CMSG_NXTHDR(msgh, cmsg);
470
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
471
    }
472

    
473
    msgh->msg_controllen = space;
474
}
475

    
476
/* ??? Should this also swap msgh->name?  */
477
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
478
                                       struct msghdr *msgh)
479
{
480
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
481
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
482
    socklen_t space = 0;
483

    
484
    while (cmsg && target_cmsg) {
485
        void *data = CMSG_DATA(cmsg);
486
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
487

    
488
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
489

    
490
        space += TARGET_CMSG_SPACE(len);
491
        if (space > tswapl(target_msgh->msg_controllen)) {
492
            space -= TARGET_CMSG_SPACE(len);
493
            gemu_log("Target cmsg overflow\n");
494
            break;
495
        }
496

    
497
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
498
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
499
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
500

    
501
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
502
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
503
            memcpy(target_data, data, len);
504
        } else {
505
            int *fd = (int *)data;
506
            int *target_fd = (int *)target_data;
507
            int i, numfds = len / sizeof(int);
508

    
509
            for (i = 0; i < numfds; i++)
510
                target_fd[i] = tswap32(fd[i]);
511
        }
512

    
513
        cmsg = CMSG_NXTHDR(msgh, cmsg);
514
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
515
    }
516

    
517
    msgh->msg_controllen = tswapl(space);
518
}
519

    
520
static long do_setsockopt(int sockfd, int level, int optname, 
521
                          target_ulong optval, socklen_t optlen)
522
{
523
    int val, ret;
524
            
525
    switch(level) {
526
    case SOL_TCP:
527
        /* TCP options all take an 'int' value.  */
528
        if (optlen < sizeof(uint32_t))
529
            return -EINVAL;
530
        
531
        val = tget32(optval);
532
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
533
        break;
534
    case SOL_IP:
535
        switch(optname) {
536
        case IP_TOS:
537
        case IP_TTL:
538
        case IP_HDRINCL:
539
        case IP_ROUTER_ALERT:
540
        case IP_RECVOPTS:
541
        case IP_RETOPTS:
542
        case IP_PKTINFO:
543
        case IP_MTU_DISCOVER:
544
        case IP_RECVERR:
545
        case IP_RECVTOS:
546
#ifdef IP_FREEBIND
547
        case IP_FREEBIND:
548
#endif
549
        case IP_MULTICAST_TTL:
550
        case IP_MULTICAST_LOOP:
551
            val = 0;
552
            if (optlen >= sizeof(uint32_t)) {
553
                val = tget32(optval);
554
            } else if (optlen >= 1) {
555
                val = tget8(optval);
556
            }
557
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
558
            break;
559
        default:
560
            goto unimplemented;
561
        }
562
        break;
563
    case TARGET_SOL_SOCKET:
564
        switch (optname) {
565
            /* Options with 'int' argument.  */
566
        case TARGET_SO_DEBUG:
567
                optname = SO_DEBUG;
568
                break;
569
        case TARGET_SO_REUSEADDR:
570
                optname = SO_REUSEADDR;
571
                break;
572
        case TARGET_SO_TYPE:
573
                optname = SO_TYPE;
574
                break;
575
        case TARGET_SO_ERROR:
576
                optname = SO_ERROR;
577
                break;
578
        case TARGET_SO_DONTROUTE:
579
                optname = SO_DONTROUTE;
580
                break;
581
        case TARGET_SO_BROADCAST:
582
                optname = SO_BROADCAST;
583
                break;
584
        case TARGET_SO_SNDBUF:
585
                optname = SO_SNDBUF;
586
                break;
587
        case TARGET_SO_RCVBUF:
588
                optname = SO_RCVBUF;
589
                break;
590
        case TARGET_SO_KEEPALIVE:
591
                optname = SO_KEEPALIVE;
592
                break;
593
        case TARGET_SO_OOBINLINE:
594
                optname = SO_OOBINLINE;
595
                break;
596
        case TARGET_SO_NO_CHECK:
597
                optname = SO_NO_CHECK;
598
                break;
599
        case TARGET_SO_PRIORITY:
600
                optname = SO_PRIORITY;
601
                break;
602
#ifdef SO_BSDCOMPAT
603
        case TARGET_SO_BSDCOMPAT:
604
                optname = SO_BSDCOMPAT;
605
                break;
606
#endif
607
        case TARGET_SO_PASSCRED:
608
                optname = SO_PASSCRED;
609
                break;
610
        case TARGET_SO_TIMESTAMP:
611
                optname = SO_TIMESTAMP;
612
                break;
613
        case TARGET_SO_RCVLOWAT:
614
                optname = SO_RCVLOWAT;
615
                break;
616
        case TARGET_SO_RCVTIMEO:
617
                optname = SO_RCVTIMEO;
618
                break;
619
        case TARGET_SO_SNDTIMEO:
620
                optname = SO_SNDTIMEO;
621
                break;
622
            break;
623
        default:
624
            goto unimplemented;
625
        }
626
        if (optlen < sizeof(uint32_t))
627
        return -EINVAL;
628

    
629
        val = tget32(optval);
630
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
631
        break;
632
    default:
633
    unimplemented:
634
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
635
        ret = -ENOSYS;
636
    }
637
    return ret;
638
}
639

    
640
static long do_getsockopt(int sockfd, int level, int optname, 
641
                          target_ulong optval, target_ulong optlen)
642
{
643
    int len, lv, val, ret;
644

    
645
    switch(level) {
646
    case TARGET_SOL_SOCKET:
647
            level = SOL_SOCKET;
648
        switch (optname) {
649
        case TARGET_SO_LINGER:
650
        case TARGET_SO_RCVTIMEO:
651
        case TARGET_SO_SNDTIMEO:
652
        case TARGET_SO_PEERCRED:
653
        case TARGET_SO_PEERNAME:
654
            /* These don't just return a single integer */
655
            goto unimplemented;
656
        default:
657
            goto int_case;
658
        }
659
        break;
660
    case SOL_TCP:
661
        /* TCP options all take an 'int' value.  */
662
    int_case:
663
        len = tget32(optlen);
664
        if (len < 0)
665
            return -EINVAL;
666
        lv = sizeof(int);
667
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
668
        if (ret < 0)
669
            return ret;
670
        val = tswap32(val);
671
        if (len > lv)
672
            len = lv;
673
        if (len == 4)
674
            tput32(optval, val);
675
        else
676
            tput8(optval, val);
677
        tput32(optlen, len);
678
        break;
679
    case SOL_IP:
680
        switch(optname) {
681
        case IP_TOS:
682
        case IP_TTL:
683
        case IP_HDRINCL:
684
        case IP_ROUTER_ALERT:
685
        case IP_RECVOPTS:
686
        case IP_RETOPTS:
687
        case IP_PKTINFO:
688
        case IP_MTU_DISCOVER:
689
        case IP_RECVERR:
690
        case IP_RECVTOS:
691
#ifdef IP_FREEBIND
692
        case IP_FREEBIND:
693
#endif
694
        case IP_MULTICAST_TTL:
695
        case IP_MULTICAST_LOOP:
696
            len = tget32(optlen);
697
            if (len < 0)
698
                return -EINVAL;
699
            lv = sizeof(int);
700
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
701
            if (ret < 0)
702
                return ret;
703
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
704
                len = 1;
705
                tput32(optlen, len);
706
                tput8(optval, val);
707
            } else {
708
                if (len > sizeof(int))
709
                    len = sizeof(int);
710
                tput32(optlen, len);
711
                tput32(optval, val);
712
            }
713
            break;
714
        default:
715
            goto unimplemented;
716
        }
717
        break;
718
    default:
719
    unimplemented:
720
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
721
                 level, optname);
722
        ret = -ENOSYS;
723
        break;
724
    }
725
    return ret;
726
}
727

    
728
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
729
                       int count, int copy)
730
{
731
    struct target_iovec *target_vec;
732
    target_ulong base;
733
    int i;
734

    
735
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
736
    for(i = 0;i < count; i++) {
737
        base = tswapl(target_vec[i].iov_base);
738
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
739
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
740
    }
741
    unlock_user (target_vec, target_addr, 0);
742
}
743

    
744
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
745
                         int count, int copy)
746
{
747
    struct target_iovec *target_vec;
748
    target_ulong base;
749
    int i;
750

    
751
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
752
    for(i = 0;i < count; i++) {
753
        base = tswapl(target_vec[i].iov_base);
754
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
755
    }
756
    unlock_user (target_vec, target_addr, 0);
757
}
758

    
759
static long do_socket(int domain, int type, int protocol)
760
{
761
#if defined(TARGET_MIPS)
762
    switch(type) {
763
    case TARGET_SOCK_DGRAM:
764
        type = SOCK_DGRAM;
765
        break;
766
    case TARGET_SOCK_STREAM:
767
        type = SOCK_STREAM;
768
        break;
769
    case TARGET_SOCK_RAW:
770
        type = SOCK_RAW;
771
        break;
772
    case TARGET_SOCK_RDM:
773
        type = SOCK_RDM;
774
        break;
775
    case TARGET_SOCK_SEQPACKET:
776
        type = SOCK_SEQPACKET;
777
        break;
778
    case TARGET_SOCK_PACKET:
779
        type = SOCK_PACKET;
780
        break;
781
    }
782
#endif
783
    return get_errno(socket(domain, type, protocol));
784
}
785

    
786
static long do_bind(int sockfd, target_ulong target_addr,
787
                    socklen_t addrlen)
788
{
789
    void *addr = alloca(addrlen);
790
    
791
    target_to_host_sockaddr(addr, target_addr, addrlen);
792
    return get_errno(bind(sockfd, addr, addrlen));
793
}
794

    
795
static long do_connect(int sockfd, target_ulong target_addr,
796
                    socklen_t addrlen)
797
{
798
    void *addr = alloca(addrlen);
799
    
800
    target_to_host_sockaddr(addr, target_addr, addrlen);
801
    return get_errno(connect(sockfd, addr, addrlen));
802
}
803

    
804
static long do_sendrecvmsg(int fd, target_ulong target_msg,
805
                           int flags, int send)
806
{
807
    long ret;
808
    struct target_msghdr *msgp;
809
    struct msghdr msg;
810
    int count;
811
    struct iovec *vec;
812
    target_ulong target_vec;
813

    
814
    lock_user_struct(msgp, target_msg, 1);
815
    if (msgp->msg_name) {
816
        msg.msg_namelen = tswap32(msgp->msg_namelen);
817
        msg.msg_name = alloca(msg.msg_namelen);
818
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
819
                                msg.msg_namelen);
820
    } else {
821
        msg.msg_name = NULL;
822
        msg.msg_namelen = 0;
823
    }
824
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
825
    msg.msg_control = alloca(msg.msg_controllen);
826
    msg.msg_flags = tswap32(msgp->msg_flags);
827
    
828
    count = tswapl(msgp->msg_iovlen);
829
    vec = alloca(count * sizeof(struct iovec));
830
    target_vec = tswapl(msgp->msg_iov);
831
    lock_iovec(vec, target_vec, count, send);
832
    msg.msg_iovlen = count;
833
    msg.msg_iov = vec;
834
    
835
    if (send) {
836
        target_to_host_cmsg(&msg, msgp);
837
        ret = get_errno(sendmsg(fd, &msg, flags));
838
    } else {
839
        ret = get_errno(recvmsg(fd, &msg, flags));
840
        if (!is_error(ret))
841
            host_to_target_cmsg(msgp, &msg);
842
    }
843
    unlock_iovec(vec, target_vec, count, !send);
844
    return ret;
845
}
846

    
847
static long do_accept(int fd, target_ulong target_addr,
848
                      target_ulong target_addrlen)
849
{
850
    socklen_t addrlen = tget32(target_addrlen);
851
    void *addr = alloca(addrlen);
852
    long ret;
853

    
854
    ret = get_errno(accept(fd, addr, &addrlen));
855
    if (!is_error(ret)) {
856
        host_to_target_sockaddr(target_addr, addr, addrlen);
857
        tput32(target_addrlen, addrlen);
858
    }
859
    return ret;
860
}
861

    
862
static long do_getpeername(int fd, target_ulong target_addr,
863
                           target_ulong target_addrlen)
864
{
865
    socklen_t addrlen = tget32(target_addrlen);
866
    void *addr = alloca(target_addrlen);
867
    long ret;
868

    
869
    ret = get_errno(getpeername(fd, addr, &addrlen));
870
    if (!is_error(ret)) {
871
        host_to_target_sockaddr(target_addr, addr, addrlen);
872
        tput32(target_addrlen, addrlen);
873
    }
874
    return ret;
875
}
876

    
877
static long do_getsockname(int fd, target_ulong target_addr,
878
                           target_ulong target_addrlen)
879
{
880
    socklen_t addrlen = tget32(target_addrlen);
881
    void *addr = alloca(target_addrlen);
882
    long ret;
883

    
884
    ret = get_errno(getsockname(fd, addr, &addrlen));
885
    if (!is_error(ret)) {
886
        host_to_target_sockaddr(target_addr, addr, addrlen);
887
        tput32(target_addrlen, addrlen);
888
    }
889
    return ret;
890
}
891

    
892
static long do_socketpair(int domain, int type, int protocol,
893
                          target_ulong target_tab)
894
{
895
    int tab[2];
896
    long ret;
897

    
898
    ret = get_errno(socketpair(domain, type, protocol, tab));
899
    if (!is_error(ret)) {
900
        tput32(target_tab, tab[0]);
901
        tput32(target_tab + 4, tab[1]);
902
    }
903
    return ret;
904
}
905

    
906
static long do_sendto(int fd, target_ulong msg, size_t len, int flags,
907
                      target_ulong target_addr, socklen_t addrlen)
908
{
909
    void *addr;
910
    void *host_msg;
911
    long ret;
912

    
913
    host_msg = lock_user(msg, len, 1);
914
    if (target_addr) {
915
        addr = alloca(addrlen);
916
        target_to_host_sockaddr(addr, target_addr, addrlen);
917
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
918
    } else {
919
        ret = get_errno(send(fd, host_msg, len, flags));
920
    }
921
    unlock_user(host_msg, msg, 0);
922
    return ret;
923
}
924

    
925
static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
926
                        target_ulong target_addr, target_ulong target_addrlen)
927
{
928
    socklen_t addrlen;
929
    void *addr;
930
    void *host_msg;
931
    long ret;
932

    
933
    host_msg = lock_user(msg, len, 0);
934
    if (target_addr) {
935
        addrlen = tget32(target_addrlen);
936
        addr = alloca(addrlen);
937
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
938
    } else {
939
        addr = NULL; /* To keep compiler quiet.  */
940
        ret = get_errno(recv(fd, host_msg, len, flags));
941
    }
942
    if (!is_error(ret)) {
943
        if (target_addr) {
944
            host_to_target_sockaddr(target_addr, addr, addrlen);
945
            tput32(target_addrlen, addrlen);
946
        }
947
        unlock_user(host_msg, msg, len);
948
    } else {
949
        unlock_user(host_msg, msg, 0);
950
    }
951
    return ret;
952
}
953

    
954
static long do_socketcall(int num, target_ulong vptr)
955
{
956
    long ret;
957
    const int n = sizeof(target_ulong);
958

    
959
    switch(num) {
960
    case SOCKOP_socket:
961
        {
962
            int domain = tgetl(vptr);
963
            int type = tgetl(vptr + n);
964
            int protocol = tgetl(vptr + 2 * n);
965
            ret = do_socket(domain, type, protocol);
966
        }
967
        break;
968
    case SOCKOP_bind:
969
        {
970
            int sockfd = tgetl(vptr);
971
            target_ulong target_addr = tgetl(vptr + n);
972
            socklen_t addrlen = tgetl(vptr + 2 * n);
973
            ret = do_bind(sockfd, target_addr, addrlen);
974
        }
975
        break;
976
    case SOCKOP_connect:
977
        {
978
            int sockfd = tgetl(vptr);
979
            target_ulong target_addr = tgetl(vptr + n);
980
            socklen_t addrlen = tgetl(vptr + 2 * n);
981
            ret = do_connect(sockfd, target_addr, addrlen);
982
        }
983
        break;
984
    case SOCKOP_listen:
985
        {
986
            int sockfd = tgetl(vptr);
987
            int backlog = tgetl(vptr + n);
988
            ret = get_errno(listen(sockfd, backlog));
989
        }
990
        break;
991
    case SOCKOP_accept:
992
        {
993
            int sockfd = tgetl(vptr);
994
            target_ulong target_addr = tgetl(vptr + n);
995
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
996
            ret = do_accept(sockfd, target_addr, target_addrlen);
997
        }
998
        break;
999
    case SOCKOP_getsockname:
1000
        {
1001
            int sockfd = tgetl(vptr);
1002
            target_ulong target_addr = tgetl(vptr + n);
1003
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1004
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
1005
        }
1006
        break;
1007
    case SOCKOP_getpeername:
1008
        {
1009
            int sockfd = tgetl(vptr);
1010
            target_ulong target_addr = tgetl(vptr + n);
1011
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1012
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1013
        }
1014
        break;
1015
    case SOCKOP_socketpair:
1016
        {
1017
            int domain = tgetl(vptr);
1018
            int type = tgetl(vptr + n);
1019
            int protocol = tgetl(vptr + 2 * n);
1020
            target_ulong tab = tgetl(vptr + 3 * n);
1021
            ret = do_socketpair(domain, type, protocol, tab);
1022
        }
1023
        break;
1024
    case SOCKOP_send:
1025
        {
1026
            int sockfd = tgetl(vptr);
1027
            target_ulong msg = tgetl(vptr + n);
1028
            size_t len = tgetl(vptr + 2 * n);
1029
            int flags = tgetl(vptr + 3 * n);
1030
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1031
        }
1032
        break;
1033
    case SOCKOP_recv:
1034
        {
1035
            int sockfd = tgetl(vptr);
1036
            target_ulong msg = tgetl(vptr + n);
1037
            size_t len = tgetl(vptr + 2 * n);
1038
            int flags = tgetl(vptr + 3 * n);
1039
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1040
        }
1041
        break;
1042
    case SOCKOP_sendto:
1043
        {
1044
            int sockfd = tgetl(vptr);
1045
            target_ulong msg = tgetl(vptr + n);
1046
            size_t len = tgetl(vptr + 2 * n);
1047
            int flags = tgetl(vptr + 3 * n);
1048
            target_ulong addr = tgetl(vptr + 4 * n);
1049
            socklen_t addrlen = tgetl(vptr + 5 * n);
1050
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1051
        }
1052
        break;
1053
    case SOCKOP_recvfrom:
1054
        {
1055
            int sockfd = tgetl(vptr);
1056
            target_ulong msg = tgetl(vptr + n);
1057
            size_t len = tgetl(vptr + 2 * n);
1058
            int flags = tgetl(vptr + 3 * n);
1059
            target_ulong addr = tgetl(vptr + 4 * n);
1060
            target_ulong addrlen = tgetl(vptr + 5 * n);
1061
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1062
        }
1063
        break;
1064
    case SOCKOP_shutdown:
1065
        {
1066
            int sockfd = tgetl(vptr);
1067
            int how = tgetl(vptr + n);
1068

    
1069
            ret = get_errno(shutdown(sockfd, how));
1070
        }
1071
        break;
1072
    case SOCKOP_sendmsg:
1073
    case SOCKOP_recvmsg:
1074
        {
1075
            int fd;
1076
            target_ulong target_msg;
1077
            int flags;
1078

    
1079
            fd = tgetl(vptr);
1080
            target_msg = tgetl(vptr + n);
1081
            flags = tgetl(vptr + 2 * n);
1082

    
1083
            ret = do_sendrecvmsg(fd, target_msg, flags, 
1084
                                 (num == SOCKOP_sendmsg));
1085
        }
1086
        break;
1087
    case SOCKOP_setsockopt:
1088
        {
1089
            int sockfd = tgetl(vptr);
1090
            int level = tgetl(vptr + n);
1091
            int optname = tgetl(vptr + 2 * n);
1092
            target_ulong optval = tgetl(vptr + 3 * n);
1093
            socklen_t optlen = tgetl(vptr + 4 * n);
1094

    
1095
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1096
        }
1097
        break;
1098
    case SOCKOP_getsockopt:
1099
        {
1100
            int sockfd = tgetl(vptr);
1101
            int level = tgetl(vptr + n);
1102
            int optname = tgetl(vptr + 2 * n);
1103
            target_ulong optval = tgetl(vptr + 3 * n);
1104
            target_ulong poptlen = tgetl(vptr + 4 * n);
1105

    
1106
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1107
        }
1108
        break;
1109
    default:
1110
        gemu_log("Unsupported socketcall: %d\n", num);
1111
        ret = -ENOSYS;
1112
        break;
1113
    }
1114
    return ret;
1115
}
1116

    
1117
#define N_SHM_REGIONS        32
1118

    
1119
static struct shm_region {
1120
    uint32_t        start;
1121
    uint32_t        size;
1122
} shm_regions[N_SHM_REGIONS];
1123

    
1124
union semun {
1125
        int val;
1126
        struct senid_ds *buf;
1127
        unsigned short *array;
1128
};
1129

    
1130
/* ??? This only works with linear mappings.  */
1131
static long do_ipc(long call, long first, long second, long third,
1132
                   long ptr, long fifth)
1133
{
1134
    int version;
1135
    long ret = 0;
1136
    unsigned long raddr;
1137
    struct shmid_ds shm_info;
1138
    int i;
1139

    
1140
    version = call >> 16;
1141
    call &= 0xffff;
1142

    
1143
    switch (call) {
1144
    case IPCOP_semop:
1145
        ret = get_errno(semop(first,(struct sembuf *) ptr, second));
1146
        break;
1147

    
1148
    case IPCOP_semget:
1149
        ret = get_errno(semget(first, second, third));
1150
        break;
1151

    
1152
    case IPCOP_semctl:
1153
        ret = get_errno(semctl(first, second, third, ((union semun*)ptr)->val));
1154

    
1155
        break;
1156

    
1157
    case IPCOP_semtimedop:
1158
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1159
        ret = -ENOSYS;
1160
        break;
1161

    
1162
        case IPCOP_msgget:
1163
                ret = get_errno(msgget(first, second));
1164
                break;
1165

    
1166
        case IPCOP_msgsnd:
1167
                ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third));
1168
                break;
1169

    
1170
        case IPCOP_msgctl:
1171
                ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr));
1172
                break;
1173

    
1174
        case IPCOP_msgrcv:
1175
                {
1176
                        struct ipc_kludge
1177
                        {
1178
                                void *__unbounded msgp;
1179
                                long int msgtyp;
1180
                        };
1181

    
1182
                        struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
1183
                        struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1184

    
1185
                        ret = get_errno(msgrcv(first, msgp, second, 0, third));
1186

    
1187
                }
1188
                break;
1189

    
1190
    case IPCOP_shmat:
1191
        /* SHM_* flags are the same on all linux platforms */
1192
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1193
        if (is_error(ret))
1194
            break;
1195
        raddr = ret;
1196
        /* find out the length of the shared memory segment */
1197
        
1198
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1199
        if (is_error(ret)) {
1200
            /* can't get length, bail out */
1201
            shmdt((void *) raddr);
1202
            break;
1203
        }
1204
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1205
                       PAGE_VALID | PAGE_READ |
1206
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1207
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1208
            if (shm_regions[i].start == 0) {
1209
                shm_regions[i].start = raddr;
1210
                shm_regions[i].size = shm_info.shm_segsz;
1211
                break;
1212
            }
1213
        }
1214
        if (put_user(raddr, (uint32_t *)third))
1215
            return -EFAULT;
1216
        ret = 0;
1217
        break;
1218
    case IPCOP_shmdt:
1219
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1220
            if (shm_regions[i].start == ptr) {
1221
                shm_regions[i].start = 0;
1222
                page_set_flags(ptr, shm_regions[i].size, 0);
1223
                break;
1224
            }
1225
        }
1226
        ret = get_errno(shmdt((void *) ptr));
1227
        break;
1228

    
1229
    case IPCOP_shmget:
1230
        /* IPC_* flag values are the same on all linux platforms */
1231
        ret = get_errno(shmget(first, second, third));
1232
        break;
1233

    
1234
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1235
    case IPCOP_shmctl:
1236
        switch(second) {
1237
        case IPC_RMID:
1238
        case SHM_LOCK:
1239
        case SHM_UNLOCK:
1240
            ret = get_errno(shmctl(first, second, NULL));
1241
            break;
1242
        default:
1243
            goto unimplemented;
1244
        }
1245
        break;
1246
    default:
1247
    unimplemented:
1248
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1249
        ret = -ENOSYS;
1250
        break;
1251
    }
1252
    return ret;
1253
}
1254

    
1255
/* kernel structure types definitions */
1256
#define IFNAMSIZ        16
1257

    
1258
#define STRUCT(name, list...) STRUCT_ ## name,
1259
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1260
enum {
1261
#include "syscall_types.h"
1262
};
1263
#undef STRUCT
1264
#undef STRUCT_SPECIAL
1265

    
1266
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1267
#define STRUCT_SPECIAL(name)
1268
#include "syscall_types.h"
1269
#undef STRUCT
1270
#undef STRUCT_SPECIAL
1271

    
1272
typedef struct IOCTLEntry {
1273
    unsigned int target_cmd;
1274
    unsigned int host_cmd;
1275
    const char *name;
1276
    int access;
1277
    const argtype arg_type[5];
1278
} IOCTLEntry;
1279

    
1280
#define IOC_R 0x0001
1281
#define IOC_W 0x0002
1282
#define IOC_RW (IOC_R | IOC_W)
1283

    
1284
#define MAX_STRUCT_SIZE 4096
1285

    
1286
IOCTLEntry ioctl_entries[] = {
1287
#define IOCTL(cmd, access, types...) \
1288
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1289
#include "ioctls.h"
1290
    { 0, 0, },
1291
};
1292

    
1293
/* ??? Implement proper locking for ioctls.  */
1294
static long do_ioctl(long fd, long cmd, long arg)
1295
{
1296
    const IOCTLEntry *ie;
1297
    const argtype *arg_type;
1298
    long ret;
1299
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1300
    int target_size;
1301
    void *argptr;
1302

    
1303
    ie = ioctl_entries;
1304
    for(;;) {
1305
        if (ie->target_cmd == 0) {
1306
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1307
            return -ENOSYS;
1308
        }
1309
        if (ie->target_cmd == cmd)
1310
            break;
1311
        ie++;
1312
    }
1313
    arg_type = ie->arg_type;
1314
#if defined(DEBUG)
1315
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1316
#endif
1317
    switch(arg_type[0]) {
1318
    case TYPE_NULL:
1319
        /* no argument */
1320
        ret = get_errno(ioctl(fd, ie->host_cmd));
1321
        break;
1322
    case TYPE_PTRVOID:
1323
    case TYPE_INT:
1324
        /* int argment */
1325
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1326
        break;
1327
    case TYPE_PTR:
1328
        arg_type++;
1329
        target_size = thunk_type_size(arg_type, 0);
1330
        switch(ie->access) {
1331
        case IOC_R:
1332
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1333
            if (!is_error(ret)) {
1334
                argptr = lock_user(arg, target_size, 0);
1335
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1336
                unlock_user(argptr, arg, target_size);
1337
            }
1338
            break;
1339
        case IOC_W:
1340
            argptr = lock_user(arg, target_size, 1);
1341
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1342
            unlock_user(argptr, arg, 0);
1343
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1344
            break;
1345
        default:
1346
        case IOC_RW:
1347
            argptr = lock_user(arg, target_size, 1);
1348
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1349
            unlock_user(argptr, arg, 0);
1350
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1351
            if (!is_error(ret)) {
1352
                argptr = lock_user(arg, target_size, 0);
1353
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1354
                unlock_user(argptr, arg, target_size);
1355
            }
1356
            break;
1357
        }
1358
        break;
1359
    default:
1360
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1361
        ret = -ENOSYS;
1362
        break;
1363
    }
1364
    return ret;
1365
}
1366

    
1367
bitmask_transtbl iflag_tbl[] = {
1368
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1369
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1370
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1371
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1372
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1373
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1374
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1375
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1376
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1377
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1378
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1379
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1380
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1381
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1382
        { 0, 0, 0, 0 }
1383
};
1384

    
1385
bitmask_transtbl oflag_tbl[] = {
1386
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1387
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1388
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1389
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1390
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1391
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1392
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1393
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1394
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1395
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1396
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1397
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1398
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1399
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1400
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1401
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1402
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1403
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1404
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1405
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1406
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1407
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1408
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1409
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1410
        { 0, 0, 0, 0 }
1411
};
1412

    
1413
bitmask_transtbl cflag_tbl[] = {
1414
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1415
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1416
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1417
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1418
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1419
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1420
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1421
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1422
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1423
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1424
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1425
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1426
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1427
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1428
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1429
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1430
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1431
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1432
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1433
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1434
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1435
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1436
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1437
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1438
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1439
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1440
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1441
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1442
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1443
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1444
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1445
        { 0, 0, 0, 0 }
1446
};
1447

    
1448
bitmask_transtbl lflag_tbl[] = {
1449
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1450
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1451
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1452
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1453
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1454
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1455
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1456
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1457
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1458
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1459
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1460
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1461
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1462
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1463
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1464
        { 0, 0, 0, 0 }
1465
};
1466

    
1467
static void target_to_host_termios (void *dst, const void *src)
1468
{
1469
    struct host_termios *host = dst;
1470
    const struct target_termios *target = src;
1471
    
1472
    host->c_iflag = 
1473
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1474
    host->c_oflag = 
1475
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1476
    host->c_cflag = 
1477
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1478
    host->c_lflag = 
1479
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1480
    host->c_line = target->c_line;
1481
    
1482
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
1483
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
1484
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
1485
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
1486
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
1487
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
1488
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
1489
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
1490
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
1491
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
1492
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
1493
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
1494
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
1495
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
1496
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
1497
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
1498
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
1499
}
1500
  
1501
static void host_to_target_termios (void *dst, const void *src)
1502
{
1503
    struct target_termios *target = dst;
1504
    const struct host_termios *host = src;
1505

    
1506
    target->c_iflag = 
1507
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1508
    target->c_oflag = 
1509
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1510
    target->c_cflag = 
1511
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1512
    target->c_lflag = 
1513
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1514
    target->c_line = host->c_line;
1515
  
1516
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1517
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1518
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1519
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1520
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1521
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1522
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1523
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1524
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1525
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1526
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1527
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1528
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1529
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1530
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1531
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1532
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1533
}
1534

    
1535
StructEntry struct_termios_def = {
1536
    .convert = { host_to_target_termios, target_to_host_termios },
1537
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1538
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1539
};
1540

    
1541
static bitmask_transtbl mmap_flags_tbl[] = {
1542
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1543
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1544
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1545
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1546
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1547
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1548
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1549
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1550
        { 0, 0, 0, 0 }
1551
};
1552

    
1553
static bitmask_transtbl fcntl_flags_tbl[] = {
1554
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1555
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1556
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1557
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1558
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1559
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1560
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1561
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1562
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1563
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1564
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1565
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1566
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1567
#if defined(O_DIRECT)
1568
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1569
#endif
1570
        { 0, 0, 0, 0 }
1571
};
1572

    
1573
#if defined(TARGET_I386)
1574

    
1575
/* NOTE: there is really one LDT for all the threads */
1576
uint8_t *ldt_table;
1577

    
1578
static int read_ldt(target_ulong ptr, unsigned long bytecount)
1579
{
1580
    int size;
1581
    void *p;
1582

    
1583
    if (!ldt_table)
1584
        return 0;
1585
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1586
    if (size > bytecount)
1587
        size = bytecount;
1588
    p = lock_user(ptr, size, 0);
1589
    /* ??? Shoudl this by byteswapped?  */
1590
    memcpy(p, ldt_table, size);
1591
    unlock_user(p, ptr, size);
1592
    return size;
1593
}
1594

    
1595
/* XXX: add locking support */
1596
static int write_ldt(CPUX86State *env, 
1597
                     target_ulong ptr, unsigned long bytecount, int oldmode)
1598
{
1599
    struct target_modify_ldt_ldt_s ldt_info;
1600
    struct target_modify_ldt_ldt_s *target_ldt_info;
1601
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1602
    int seg_not_present, useable;
1603
    uint32_t *lp, entry_1, entry_2;
1604

    
1605
    if (bytecount != sizeof(ldt_info))
1606
        return -EINVAL;
1607
    lock_user_struct(target_ldt_info, ptr, 1);
1608
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
1609
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
1610
    ldt_info.limit = tswap32(target_ldt_info->limit);
1611
    ldt_info.flags = tswap32(target_ldt_info->flags);
1612
    unlock_user_struct(target_ldt_info, ptr, 0);
1613
    
1614
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1615
        return -EINVAL;
1616
    seg_32bit = ldt_info.flags & 1;
1617
    contents = (ldt_info.flags >> 1) & 3;
1618
    read_exec_only = (ldt_info.flags >> 3) & 1;
1619
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1620
    seg_not_present = (ldt_info.flags >> 5) & 1;
1621
    useable = (ldt_info.flags >> 6) & 1;
1622

    
1623
    if (contents == 3) {
1624
        if (oldmode)
1625
            return -EINVAL;
1626
        if (seg_not_present == 0)
1627
            return -EINVAL;
1628
    }
1629
    /* allocate the LDT */
1630
    if (!ldt_table) {
1631
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1632
        if (!ldt_table)
1633
            return -ENOMEM;
1634
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1635
        env->ldt.base = h2g(ldt_table);
1636
        env->ldt.limit = 0xffff;
1637
    }
1638

    
1639
    /* NOTE: same code as Linux kernel */
1640
    /* Allow LDTs to be cleared by the user. */
1641
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1642
        if (oldmode ||
1643
            (contents == 0                &&
1644
             read_exec_only == 1        &&
1645
             seg_32bit == 0                &&
1646
             limit_in_pages == 0        &&
1647
             seg_not_present == 1        &&
1648
             useable == 0 )) {
1649
            entry_1 = 0;
1650
            entry_2 = 0;
1651
            goto install;
1652
        }
1653
    }
1654
    
1655
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1656
        (ldt_info.limit & 0x0ffff);
1657
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1658
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1659
        (ldt_info.limit & 0xf0000) |
1660
        ((read_exec_only ^ 1) << 9) |
1661
        (contents << 10) |
1662
        ((seg_not_present ^ 1) << 15) |
1663
        (seg_32bit << 22) |
1664
        (limit_in_pages << 23) |
1665
        0x7000;
1666
    if (!oldmode)
1667
        entry_2 |= (useable << 20);
1668

    
1669
    /* Install the new entry ...  */
1670
install:
1671
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1672
    lp[0] = tswap32(entry_1);
1673
    lp[1] = tswap32(entry_2);
1674
    return 0;
1675
}
1676

    
1677
/* specific and weird i386 syscalls */
1678
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
1679
{
1680
    int ret = -ENOSYS;
1681
    
1682
    switch (func) {
1683
    case 0:
1684
        ret = read_ldt(ptr, bytecount);
1685
        break;
1686
    case 1:
1687
        ret = write_ldt(env, ptr, bytecount, 1);
1688
        break;
1689
    case 0x11:
1690
        ret = write_ldt(env, ptr, bytecount, 0);
1691
        break;
1692
    }
1693
    return ret;
1694
}
1695

    
1696
#endif /* defined(TARGET_I386) */
1697

    
1698
/* this stack is the equivalent of the kernel stack associated with a
1699
   thread/process */
1700
#define NEW_STACK_SIZE 8192
1701

    
1702
static int clone_func(void *arg)
1703
{
1704
    CPUState *env = arg;
1705
    cpu_loop(env);
1706
    /* never exits */
1707
    return 0;
1708
}
1709

    
1710
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1711
{
1712
    int ret;
1713
    TaskState *ts;
1714
    uint8_t *new_stack;
1715
    CPUState *new_env;
1716
    
1717
    if (flags & CLONE_VM) {
1718
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1719
        memset(ts, 0, sizeof(TaskState));
1720
        new_stack = ts->stack;
1721
        ts->used = 1;
1722
        /* add in task state list */
1723
        ts->next = first_task_state;
1724
        first_task_state = ts;
1725
        /* we create a new CPU instance. */
1726
        new_env = cpu_copy(env);
1727
#if defined(TARGET_I386)
1728
        if (!newsp)
1729
            newsp = env->regs[R_ESP];
1730
        new_env->regs[R_ESP] = newsp;
1731
        new_env->regs[R_EAX] = 0;
1732
#elif defined(TARGET_ARM)
1733
        if (!newsp)
1734
            newsp = env->regs[13];
1735
        new_env->regs[13] = newsp;
1736
        new_env->regs[0] = 0;
1737
#elif defined(TARGET_SPARC)
1738
        if (!newsp)
1739
            newsp = env->regwptr[22];
1740
        new_env->regwptr[22] = newsp;
1741
        new_env->regwptr[0] = 0;
1742
        /* XXXXX */
1743
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1744
#elif defined(TARGET_M68K)
1745
        if (!newsp)
1746
            newsp = env->aregs[7];
1747
        new_env->aregs[7] = newsp;
1748
        new_env->dregs[0] = 0;
1749
        /* ??? is this sufficient?  */
1750
#elif defined(TARGET_MIPS)
1751
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1752
#elif defined(TARGET_PPC)
1753
        if (!newsp)
1754
            newsp = env->gpr[1];
1755
        new_env->gpr[1] = newsp;
1756
        { 
1757
            int i;
1758
            for (i = 7; i < 32; i++)
1759
                new_env->gpr[i] = 0;
1760
        }
1761
#elif defined(TARGET_SH4)
1762
        if (!newsp)
1763
          newsp = env->gregs[15];
1764
        new_env->gregs[15] = newsp;
1765
        /* XXXXX */
1766
#else
1767
#error unsupported target CPU
1768
#endif
1769
        new_env->opaque = ts;
1770
#ifdef __ia64__
1771
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1772
#else
1773
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1774
#endif
1775
    } else {
1776
        /* if no CLONE_VM, we consider it is a fork */
1777
        if ((flags & ~CSIGNAL) != 0)
1778
            return -EINVAL;
1779
        ret = fork();
1780
    }
1781
    return ret;
1782
}
1783

    
1784
static long do_fcntl(int fd, int cmd, target_ulong arg)
1785
{
1786
    struct flock fl;
1787
    struct target_flock *target_fl;
1788
    struct flock64 fl64;
1789
    struct target_flock64 *target_fl64;
1790
    long ret;
1791

    
1792
    switch(cmd) {
1793
    case TARGET_F_GETLK:
1794
        ret = fcntl(fd, cmd, &fl);
1795
        if (ret == 0) {
1796
            lock_user_struct(target_fl, arg, 0);
1797
            target_fl->l_type = tswap16(fl.l_type);
1798
            target_fl->l_whence = tswap16(fl.l_whence);
1799
            target_fl->l_start = tswapl(fl.l_start);
1800
            target_fl->l_len = tswapl(fl.l_len);
1801
            target_fl->l_pid = tswapl(fl.l_pid);
1802
            unlock_user_struct(target_fl, arg, 1);
1803
        }
1804
        break;
1805
        
1806
    case TARGET_F_SETLK:
1807
    case TARGET_F_SETLKW:
1808
        lock_user_struct(target_fl, arg, 1);
1809
        fl.l_type = tswap16(target_fl->l_type);
1810
        fl.l_whence = tswap16(target_fl->l_whence);
1811
        fl.l_start = tswapl(target_fl->l_start);
1812
        fl.l_len = tswapl(target_fl->l_len);
1813
        fl.l_pid = tswapl(target_fl->l_pid);
1814
        unlock_user_struct(target_fl, arg, 0);
1815
        ret = fcntl(fd, cmd, &fl);
1816
        break;
1817
        
1818
    case TARGET_F_GETLK64:
1819
        ret = fcntl(fd, cmd >> 1, &fl64);
1820
        if (ret == 0) {
1821
            lock_user_struct(target_fl64, arg, 0);
1822
            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
1823
            target_fl64->l_whence = tswap16(fl64.l_whence);
1824
            target_fl64->l_start = tswapl(fl64.l_start);
1825
            target_fl64->l_len = tswapl(fl64.l_len);
1826
            target_fl64->l_pid = tswapl(fl64.l_pid);
1827
            unlock_user_struct(target_fl64, arg, 1);
1828
        }
1829
                break;
1830
    case TARGET_F_SETLK64:
1831
    case TARGET_F_SETLKW64:
1832
        lock_user_struct(target_fl64, arg, 1);
1833
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
1834
        fl64.l_whence = tswap16(target_fl64->l_whence);
1835
        fl64.l_start = tswapl(target_fl64->l_start);
1836
        fl64.l_len = tswapl(target_fl64->l_len);
1837
        fl64.l_pid = tswap16(target_fl64->l_pid);
1838
        unlock_user_struct(target_fl64, arg, 0);
1839
                ret = fcntl(fd, cmd >> 1, &fl64);
1840
        break;
1841

    
1842
    case F_GETFL:
1843
        ret = fcntl(fd, cmd, arg);
1844
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1845
        break;
1846

    
1847
    case F_SETFL:
1848
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1849
        break;
1850

    
1851
    default:
1852
        ret = fcntl(fd, cmd, arg);
1853
        break;
1854
    }
1855
    return ret;
1856
}
1857

    
1858
#ifdef USE_UID16
1859

    
1860
static inline int high2lowuid(int uid)
1861
{
1862
    if (uid > 65535)
1863
        return 65534;
1864
    else
1865
        return uid;
1866
}
1867

    
1868
static inline int high2lowgid(int gid)
1869
{
1870
    if (gid > 65535)
1871
        return 65534;
1872
    else
1873
        return gid;
1874
}
1875

    
1876
static inline int low2highuid(int uid)
1877
{
1878
    if ((int16_t)uid == -1)
1879
        return -1;
1880
    else
1881
        return uid;
1882
}
1883

    
1884
static inline int low2highgid(int gid)
1885
{
1886
    if ((int16_t)gid == -1)
1887
        return -1;
1888
    else
1889
        return gid;
1890
}
1891

    
1892
#endif /* USE_UID16 */
1893

    
1894
void syscall_init(void)
1895
{
1896
    IOCTLEntry *ie;
1897
    const argtype *arg_type;
1898
    int size;
1899

    
1900
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1901
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1902
#include "syscall_types.h"
1903
#undef STRUCT
1904
#undef STRUCT_SPECIAL
1905

    
1906
    /* we patch the ioctl size if necessary. We rely on the fact that
1907
       no ioctl has all the bits at '1' in the size field */
1908
    ie = ioctl_entries;
1909
    while (ie->target_cmd != 0) {
1910
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1911
            TARGET_IOC_SIZEMASK) {
1912
            arg_type = ie->arg_type;
1913
            if (arg_type[0] != TYPE_PTR) {
1914
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1915
                        ie->target_cmd);
1916
                exit(1);
1917
            }
1918
            arg_type++;
1919
            size = thunk_type_size(arg_type, 0);
1920
            ie->target_cmd = (ie->target_cmd & 
1921
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1922
                (size << TARGET_IOC_SIZESHIFT);
1923
        }
1924
        /* automatic consistency check if same arch */
1925
#if defined(__i386__) && defined(TARGET_I386)
1926
        if (ie->target_cmd != ie->host_cmd) {
1927
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1928
                    ie->target_cmd, ie->host_cmd);
1929
        }
1930
#endif
1931
        ie++;
1932
    }
1933
}
1934

    
1935
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
1936
{
1937
#ifdef TARGET_WORDS_BIG_ENDIAN
1938
    return ((uint64_t)word0 << 32) | word1;
1939
#else
1940
    return ((uint64_t)word1 << 32) | word0;
1941
#endif
1942
}
1943

    
1944
#ifdef TARGET_NR_truncate64
1945
static inline long target_truncate64(void *cpu_env, const char *arg1,
1946
                                     long arg2, long arg3, long arg4)
1947
{
1948
#ifdef TARGET_ARM
1949
    if (((CPUARMState *)cpu_env)->eabi)
1950
      {
1951
        arg2 = arg3;
1952
        arg3 = arg4;
1953
      }
1954
#endif
1955
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
1956
}
1957
#endif
1958

    
1959
#ifdef TARGET_NR_ftruncate64
1960
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
1961
                                      long arg3, long arg4)
1962
{
1963
#ifdef TARGET_ARM
1964
    if (((CPUARMState *)cpu_env)->eabi)
1965
      {
1966
        arg2 = arg3;
1967
        arg3 = arg4;
1968
      }
1969
#endif
1970
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
1971
}
1972
#endif
1973

    
1974
static inline void target_to_host_timespec(struct timespec *host_ts,
1975
                                           target_ulong target_addr)
1976
{
1977
    struct target_timespec *target_ts;
1978

    
1979
    lock_user_struct(target_ts, target_addr, 1);
1980
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
1981
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
1982
    unlock_user_struct(target_ts, target_addr, 0);
1983
}
1984

    
1985
static inline void host_to_target_timespec(target_ulong target_addr,
1986
                                           struct timespec *host_ts)
1987
{
1988
    struct target_timespec *target_ts;
1989

    
1990
    lock_user_struct(target_ts, target_addr, 0);
1991
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
1992
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
1993
    unlock_user_struct(target_ts, target_addr, 1);
1994
}
1995

    
1996
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1997
                long arg4, long arg5, long arg6)
1998
{
1999
    long ret;
2000
    struct stat st;
2001
    struct statfs stfs;
2002
    void *p;
2003
    
2004
#ifdef DEBUG
2005
    gemu_log("syscall %d", num);
2006
#endif
2007
    switch(num) {
2008
    case TARGET_NR_exit:
2009
#ifdef HAVE_GPROF
2010
        _mcleanup();
2011
#endif
2012
        gdb_exit(cpu_env, arg1);
2013
        /* XXX: should free thread stack and CPU env */
2014
        _exit(arg1);
2015
        ret = 0; /* avoid warning */
2016
        break;
2017
    case TARGET_NR_read:
2018
        page_unprotect_range(arg2, arg3);
2019
        p = lock_user(arg2, arg3, 0);
2020
        ret = get_errno(read(arg1, p, arg3));
2021
        unlock_user(p, arg2, ret);
2022
        break;
2023
    case TARGET_NR_write:
2024
        p = lock_user(arg2, arg3, 1);
2025
        ret = get_errno(write(arg1, p, arg3));
2026
        unlock_user(p, arg2, 0);
2027
        break;
2028
    case TARGET_NR_open:
2029
        p = lock_user_string(arg1);
2030
        ret = get_errno(open(path(p),
2031
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
2032
                             arg3));
2033
        unlock_user(p, arg1, 0);
2034
        break;
2035
    case TARGET_NR_close:
2036
        ret = get_errno(close(arg1));
2037
        break;
2038
    case TARGET_NR_brk:
2039
        ret = do_brk(arg1);
2040
        break;
2041
    case TARGET_NR_fork:
2042
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
2043
        break;
2044
    case TARGET_NR_waitpid:
2045
        {
2046
            int status;
2047
            ret = get_errno(waitpid(arg1, &status, arg3));
2048
            if (!is_error(ret) && arg2)
2049
                tput32(arg2, status);
2050
        }
2051
        break;
2052
    case TARGET_NR_creat:
2053
        p = lock_user_string(arg1);
2054
        ret = get_errno(creat(p, arg2));
2055
        unlock_user(p, arg1, 0);
2056
        break;
2057
    case TARGET_NR_link:
2058
        {
2059
            void * p2;
2060
            p = lock_user_string(arg1);
2061
            p2 = lock_user_string(arg2);
2062
            ret = get_errno(link(p, p2));
2063
            unlock_user(p2, arg2, 0);
2064
            unlock_user(p, arg1, 0);
2065
        }
2066
        break;
2067
    case TARGET_NR_unlink:
2068
        p = lock_user_string(arg1);
2069
        ret = get_errno(unlink(p));
2070
        unlock_user(p, arg1, 0);
2071
        break;
2072
    case TARGET_NR_execve:
2073
        {
2074
            char **argp, **envp;
2075
            int argc, envc;
2076
            target_ulong gp;
2077
            target_ulong guest_argp;
2078
            target_ulong guest_envp;
2079
            target_ulong addr;
2080
            char **q;
2081

    
2082
            argc = 0;
2083
            guest_argp = arg2;
2084
            for (gp = guest_argp; tgetl(gp); gp++)
2085
                argc++;
2086
            envc = 0;
2087
            guest_envp = arg3;
2088
            for (gp = guest_envp; tgetl(gp); gp++)
2089
                envc++;
2090

    
2091
            argp = alloca((argc + 1) * sizeof(void *));
2092
            envp = alloca((envc + 1) * sizeof(void *));
2093

    
2094
            for (gp = guest_argp, q = argp; ;
2095
                  gp += sizeof(target_ulong), q++) {
2096
                addr = tgetl(gp);
2097
                if (!addr)
2098
                    break;
2099
                *q = lock_user_string(addr);
2100
            }
2101
            *q = NULL;
2102

    
2103
            for (gp = guest_envp, q = envp; ;
2104
                  gp += sizeof(target_ulong), q++) {
2105
                addr = tgetl(gp);
2106
                if (!addr)
2107
                    break;
2108
                *q = lock_user_string(addr);
2109
            }
2110
            *q = NULL;
2111

    
2112
            p = lock_user_string(arg1);
2113
            ret = get_errno(execve(p, argp, envp));
2114
            unlock_user(p, arg1, 0);
2115

    
2116
            for (gp = guest_argp, q = argp; *q;
2117
                  gp += sizeof(target_ulong), q++) {
2118
                addr = tgetl(gp);
2119
                unlock_user(*q, addr, 0);
2120
            }
2121
            for (gp = guest_envp, q = envp; *q;
2122
                  gp += sizeof(target_ulong), q++) {
2123
                addr = tgetl(gp);
2124
                unlock_user(*q, addr, 0);
2125
            }
2126
        }
2127
        break;
2128
    case TARGET_NR_chdir:
2129
        p = lock_user_string(arg1);
2130
        ret = get_errno(chdir(p));
2131
        unlock_user(p, arg1, 0);
2132
        break;
2133
#ifdef TARGET_NR_time
2134
    case TARGET_NR_time:
2135
        {
2136
            time_t host_time;
2137
            ret = get_errno(time(&host_time));
2138
            if (!is_error(ret) && arg1)
2139
                tputl(arg1, host_time);
2140
        }
2141
        break;
2142
#endif
2143
    case TARGET_NR_mknod:
2144
        p = lock_user_string(arg1);
2145
        ret = get_errno(mknod(p, arg2, arg3));
2146
        unlock_user(p, arg1, 0);
2147
        break;
2148
    case TARGET_NR_chmod:
2149
        p = lock_user_string(arg1);
2150
        ret = get_errno(chmod(p, arg2));
2151
        unlock_user(p, arg1, 0);
2152
        break;
2153
#ifdef TARGET_NR_break
2154
    case TARGET_NR_break:
2155
        goto unimplemented;
2156
#endif
2157
#ifdef TARGET_NR_oldstat
2158
    case TARGET_NR_oldstat:
2159
        goto unimplemented;
2160
#endif
2161
    case TARGET_NR_lseek:
2162
        ret = get_errno(lseek(arg1, arg2, arg3));
2163
        break;
2164
    case TARGET_NR_getpid:
2165
        ret = get_errno(getpid());
2166
        break;
2167
    case TARGET_NR_mount:
2168
                {
2169
                        /* need to look at the data field */
2170
                        void *p2, *p3;
2171
                        p = lock_user_string(arg1);
2172
                        p2 = lock_user_string(arg2);
2173
                        p3 = lock_user_string(arg3);
2174
                        ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5));
2175
                        unlock_user(p, arg1, 0);
2176
                        unlock_user(p2, arg2, 0);
2177
                        unlock_user(p3, arg3, 0);
2178
                        break;
2179
                }
2180
    case TARGET_NR_umount:
2181
        p = lock_user_string(arg1);
2182
        ret = get_errno(umount(p));
2183
        unlock_user(p, arg1, 0);
2184
        break;
2185
    case TARGET_NR_stime:
2186
        {
2187
            time_t host_time;
2188
            host_time = tgetl(arg1);
2189
            ret = get_errno(stime(&host_time));
2190
        }
2191
        break;
2192
    case TARGET_NR_ptrace:
2193
        goto unimplemented;
2194
    case TARGET_NR_alarm:
2195
        ret = alarm(arg1);
2196
        break;
2197
#ifdef TARGET_NR_oldfstat
2198
    case TARGET_NR_oldfstat:
2199
        goto unimplemented;
2200
#endif
2201
    case TARGET_NR_pause:
2202
        ret = get_errno(pause());
2203
        break;
2204
    case TARGET_NR_utime:
2205
        {
2206
            struct utimbuf tbuf, *host_tbuf;
2207
            struct target_utimbuf *target_tbuf;
2208
            if (arg2) {
2209
                lock_user_struct(target_tbuf, arg2, 1);
2210
                tbuf.actime = tswapl(target_tbuf->actime);
2211
                tbuf.modtime = tswapl(target_tbuf->modtime);
2212
                unlock_user_struct(target_tbuf, arg2, 0);
2213
                host_tbuf = &tbuf;
2214
            } else {
2215
                host_tbuf = NULL;
2216
            }
2217
            p = lock_user_string(arg1);
2218
            ret = get_errno(utime(p, host_tbuf));
2219
            unlock_user(p, arg1, 0);
2220
        }
2221
        break;
2222
    case TARGET_NR_utimes:
2223
        {
2224
            struct timeval *tvp, tv[2];
2225
            if (arg2) {
2226
                target_to_host_timeval(&tv[0], arg2);
2227
                target_to_host_timeval(&tv[1],
2228
                    arg2 + sizeof (struct target_timeval));
2229
                tvp = tv;
2230
            } else {
2231
                tvp = NULL;
2232
            }
2233
            p = lock_user_string(arg1);
2234
            ret = get_errno(utimes(p, tvp));
2235
            unlock_user(p, arg1, 0);
2236
        }
2237
        break;
2238
#ifdef TARGET_NR_stty
2239
    case TARGET_NR_stty:
2240
        goto unimplemented;
2241
#endif
2242
#ifdef TARGET_NR_gtty
2243
    case TARGET_NR_gtty:
2244
        goto unimplemented;
2245
#endif
2246
    case TARGET_NR_access:
2247
        p = lock_user_string(arg1);
2248
        ret = get_errno(access(p, arg2));
2249
        unlock_user(p, arg1, 0);
2250
        break;
2251
    case TARGET_NR_nice:
2252
        ret = get_errno(nice(arg1));
2253
        break;
2254
#ifdef TARGET_NR_ftime
2255
    case TARGET_NR_ftime:
2256
        goto unimplemented;
2257
#endif
2258
    case TARGET_NR_sync:
2259
        sync();
2260
        ret = 0;
2261
        break;
2262
    case TARGET_NR_kill:
2263
        ret = get_errno(kill(arg1, arg2));
2264
        break;
2265
    case TARGET_NR_rename:
2266
        {
2267
            void *p2;
2268
            p = lock_user_string(arg1);
2269
            p2 = lock_user_string(arg2);
2270
            ret = get_errno(rename(p, p2));
2271
            unlock_user(p2, arg2, 0);
2272
            unlock_user(p, arg1, 0);
2273
        }
2274
        break;
2275
    case TARGET_NR_mkdir:
2276
        p = lock_user_string(arg1);
2277
        ret = get_errno(mkdir(p, arg2));
2278
        unlock_user(p, arg1, 0);
2279
        break;
2280
    case TARGET_NR_rmdir:
2281
        p = lock_user_string(arg1);
2282
        ret = get_errno(rmdir(p));
2283
        unlock_user(p, arg1, 0);
2284
        break;
2285
    case TARGET_NR_dup:
2286
        ret = get_errno(dup(arg1));
2287
        break;
2288
    case TARGET_NR_pipe:
2289
        {
2290
            int host_pipe[2];
2291
            ret = get_errno(pipe(host_pipe));
2292
            if (!is_error(ret)) {
2293
                tput32(arg1, host_pipe[0]);
2294
                tput32(arg1 + 4, host_pipe[1]);
2295
            }
2296
        }
2297
        break;
2298
    case TARGET_NR_times:
2299
        {
2300
            struct target_tms *tmsp;
2301
            struct tms tms;
2302
            ret = get_errno(times(&tms));
2303
            if (arg1) {
2304
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2305
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2306
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2307
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2308
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2309
            }
2310
            if (!is_error(ret))
2311
                ret = host_to_target_clock_t(ret);
2312
        }
2313
        break;
2314
#ifdef TARGET_NR_prof
2315
    case TARGET_NR_prof:
2316
        goto unimplemented;
2317
#endif
2318
    case TARGET_NR_signal:
2319
        goto unimplemented;
2320

    
2321
    case TARGET_NR_acct:
2322
        p = lock_user_string(arg1);
2323
        ret = get_errno(acct(path(p)));
2324
        unlock_user(p, arg1, 0);
2325
        break;
2326
    case TARGET_NR_umount2:
2327
        p = lock_user_string(arg1);
2328
        ret = get_errno(umount2(p, arg2));
2329
        unlock_user(p, arg1, 0);
2330
        break;
2331
#ifdef TARGET_NR_lock
2332
    case TARGET_NR_lock:
2333
        goto unimplemented;
2334
#endif
2335
    case TARGET_NR_ioctl:
2336
        ret = do_ioctl(arg1, arg2, arg3);
2337
        break;
2338
    case TARGET_NR_fcntl:
2339
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
2340
        break;
2341
#ifdef TARGET_NR_mpx
2342
    case TARGET_NR_mpx:
2343
        goto unimplemented;
2344
#endif
2345
    case TARGET_NR_setpgid:
2346
        ret = get_errno(setpgid(arg1, arg2));
2347
        break;
2348
#ifdef TARGET_NR_ulimit
2349
    case TARGET_NR_ulimit:
2350
        goto unimplemented;
2351
#endif
2352
#ifdef TARGET_NR_oldolduname
2353
    case TARGET_NR_oldolduname:
2354
        goto unimplemented;
2355
#endif
2356
    case TARGET_NR_umask:
2357
        ret = get_errno(umask(arg1));
2358
        break;
2359
    case TARGET_NR_chroot:
2360
        p = lock_user_string(arg1);
2361
        ret = get_errno(chroot(p));
2362
        unlock_user(p, arg1, 0);
2363
        break;
2364
    case TARGET_NR_ustat:
2365
        goto unimplemented;
2366
    case TARGET_NR_dup2:
2367
        ret = get_errno(dup2(arg1, arg2));
2368
        break;
2369
    case TARGET_NR_getppid:
2370
        ret = get_errno(getppid());
2371
        break;
2372
    case TARGET_NR_getpgrp:
2373
        ret = get_errno(getpgrp());
2374
        break;
2375
    case TARGET_NR_setsid:
2376
        ret = get_errno(setsid());
2377
        break;
2378
    case TARGET_NR_sigaction:
2379
        {
2380
        #if !defined(TARGET_MIPS)
2381
            struct target_old_sigaction *old_act;
2382
            struct target_sigaction act, oact, *pact;
2383
            if (arg2) {
2384
                lock_user_struct(old_act, arg2, 1);
2385
                act._sa_handler = old_act->_sa_handler;
2386
                target_siginitset(&act.sa_mask, old_act->sa_mask);
2387
                act.sa_flags = old_act->sa_flags;
2388
                act.sa_restorer = old_act->sa_restorer;
2389
                unlock_user_struct(old_act, arg2, 0);
2390
                pact = &act;
2391
            } else {
2392
                pact = NULL;
2393
            }
2394
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2395
            if (!is_error(ret) && arg3) {
2396
                lock_user_struct(old_act, arg3, 0);
2397
                old_act->_sa_handler = oact._sa_handler;
2398
                old_act->sa_mask = oact.sa_mask.sig[0];
2399
                old_act->sa_flags = oact.sa_flags;
2400
                old_act->sa_restorer = oact.sa_restorer;
2401
                unlock_user_struct(old_act, arg3, 1);
2402
            }
2403
        #else
2404
            struct target_sigaction act, oact, *pact, *old_act;
2405

    
2406
            if (arg2) {
2407
                lock_user_struct(old_act, arg2, 1);
2408
                act._sa_handler = old_act->_sa_handler;
2409
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
2410
                act.sa_flags = old_act->sa_flags;
2411
                unlock_user_struct(old_act, arg2, 0);
2412
                pact = &act;
2413
            } else {
2414
                pact = NULL;
2415
            }
2416

    
2417
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2418

    
2419
            if (!is_error(ret) && arg3) {
2420
                lock_user_struct(old_act, arg3, 0);
2421
                old_act->_sa_handler = oact._sa_handler;
2422
                old_act->sa_flags = oact.sa_flags;
2423
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
2424
                old_act->sa_mask.sig[1] = 0;
2425
                old_act->sa_mask.sig[2] = 0;
2426
                old_act->sa_mask.sig[3] = 0;
2427
                unlock_user_struct(old_act, arg3, 1);
2428
            }
2429
        #endif
2430
        }
2431
        break;
2432
    case TARGET_NR_rt_sigaction:
2433
        {
2434
            struct target_sigaction *act;
2435
            struct target_sigaction *oact;
2436

    
2437
            if (arg2)
2438
                lock_user_struct(act, arg2, 1);
2439
            else
2440
                act = NULL;
2441
            if (arg3)
2442
                lock_user_struct(oact, arg3, 0);
2443
            else
2444
                oact = NULL;
2445
            ret = get_errno(do_sigaction(arg1, act, oact));
2446
            if (arg2)
2447
                unlock_user_struct(act, arg2, 0);
2448
            if (arg3)
2449
                unlock_user_struct(oact, arg3, 1);
2450
        }
2451
        break;
2452
    case TARGET_NR_sgetmask:
2453
        {
2454
            sigset_t cur_set;
2455
            target_ulong target_set;
2456
            sigprocmask(0, NULL, &cur_set);
2457
            host_to_target_old_sigset(&target_set, &cur_set);
2458
            ret = target_set;
2459
        }
2460
        break;
2461
    case TARGET_NR_ssetmask:
2462
        {
2463
            sigset_t set, oset, cur_set;
2464
            target_ulong target_set = arg1;
2465
            sigprocmask(0, NULL, &cur_set);
2466
            target_to_host_old_sigset(&set, &target_set);
2467
            sigorset(&set, &set, &cur_set);
2468
            sigprocmask(SIG_SETMASK, &set, &oset);
2469
            host_to_target_old_sigset(&target_set, &oset);
2470
            ret = target_set;
2471
        }
2472
        break;
2473
    case TARGET_NR_sigprocmask:
2474
        {
2475
            int how = arg1;
2476
            sigset_t set, oldset, *set_ptr;
2477
            
2478
            if (arg2) {
2479
                switch(how) {
2480
                case TARGET_SIG_BLOCK:
2481
                    how = SIG_BLOCK;
2482
                    break;
2483
                case TARGET_SIG_UNBLOCK:
2484
                    how = SIG_UNBLOCK;
2485
                    break;
2486
                case TARGET_SIG_SETMASK:
2487
                    how = SIG_SETMASK;
2488
                    break;
2489
                default:
2490
                    ret = -EINVAL;
2491
                    goto fail;
2492
                }
2493
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2494
                target_to_host_old_sigset(&set, p);
2495
                unlock_user(p, arg2, 0);
2496
                set_ptr = &set;
2497
            } else {
2498
                how = 0;
2499
                set_ptr = NULL;
2500
            }
2501
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
2502
            if (!is_error(ret) && arg3) {
2503
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2504
                host_to_target_old_sigset(p, &oldset);
2505
                unlock_user(p, arg3, sizeof(target_sigset_t));
2506
            }
2507
        }
2508
        break;
2509
    case TARGET_NR_rt_sigprocmask:
2510
        {
2511
            int how = arg1;
2512
            sigset_t set, oldset, *set_ptr;
2513
            
2514
            if (arg2) {
2515
                switch(how) {
2516
                case TARGET_SIG_BLOCK:
2517
                    how = SIG_BLOCK;
2518
                    break;
2519
                case TARGET_SIG_UNBLOCK:
2520
                    how = SIG_UNBLOCK;
2521
                    break;
2522
                case TARGET_SIG_SETMASK:
2523
                    how = SIG_SETMASK;
2524
                    break;
2525
                default:
2526
                    ret = -EINVAL;
2527
                    goto fail;
2528
                }
2529
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
2530
                target_to_host_sigset(&set, p);
2531
                unlock_user(p, arg2, 0);
2532
                set_ptr = &set;
2533
            } else {
2534
                how = 0;
2535
                set_ptr = NULL;
2536
            }
2537
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
2538
            if (!is_error(ret) && arg3) {
2539
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
2540
                host_to_target_sigset(p, &oldset);
2541
                unlock_user(p, arg3, sizeof(target_sigset_t));
2542
            }
2543
        }
2544
        break;
2545
    case TARGET_NR_sigpending:
2546
        {
2547
            sigset_t set;
2548
            ret = get_errno(sigpending(&set));
2549
            if (!is_error(ret)) {
2550
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2551
                host_to_target_old_sigset(p, &set);
2552
                unlock_user(p, arg1, sizeof(target_sigset_t));
2553
            }
2554
        }
2555
        break;
2556
    case TARGET_NR_rt_sigpending:
2557
        {
2558
            sigset_t set;
2559
            ret = get_errno(sigpending(&set));
2560
            if (!is_error(ret)) {
2561
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
2562
                host_to_target_sigset(p, &set);
2563
                unlock_user(p, arg1, sizeof(target_sigset_t));
2564
            }
2565
        }
2566
        break;
2567
    case TARGET_NR_sigsuspend:
2568
        {
2569
            sigset_t set;
2570
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2571
            target_to_host_old_sigset(&set, p);
2572
            unlock_user(p, arg1, 0);
2573
            ret = get_errno(sigsuspend(&set));
2574
        }
2575
        break;
2576
    case TARGET_NR_rt_sigsuspend:
2577
        {
2578
            sigset_t set;
2579
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2580
            target_to_host_sigset(&set, p);
2581
            unlock_user(p, arg1, 0);
2582
            ret = get_errno(sigsuspend(&set));
2583
        }
2584
        break;
2585
    case TARGET_NR_rt_sigtimedwait:
2586
        {
2587
            sigset_t set;
2588
            struct timespec uts, *puts;
2589
            siginfo_t uinfo;
2590
            
2591
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
2592
            target_to_host_sigset(&set, p);
2593
            unlock_user(p, arg1, 0);
2594
            if (arg3) {
2595
                puts = &uts;
2596
                target_to_host_timespec(puts, arg3);
2597
            } else {
2598
                puts = NULL;
2599
            }
2600
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2601
            if (!is_error(ret) && arg2) {
2602
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
2603
                host_to_target_siginfo(p, &uinfo);
2604
                unlock_user(p, arg2, sizeof(target_sigset_t));
2605
            }
2606
        }
2607
        break;
2608
    case TARGET_NR_rt_sigqueueinfo:
2609
        {
2610
            siginfo_t uinfo;
2611
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
2612
            target_to_host_siginfo(&uinfo, p);
2613
            unlock_user(p, arg1, 0);
2614
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2615
        }
2616
        break;
2617
    case TARGET_NR_sigreturn:
2618
        /* NOTE: ret is eax, so not transcoding must be done */
2619
        ret = do_sigreturn(cpu_env);
2620
        break;
2621
    case TARGET_NR_rt_sigreturn:
2622
        /* NOTE: ret is eax, so not transcoding must be done */
2623
        ret = do_rt_sigreturn(cpu_env);
2624
        break;
2625
    case TARGET_NR_sethostname:
2626
        p = lock_user_string(arg1);
2627
        ret = get_errno(sethostname(p, arg2));
2628
        unlock_user(p, arg1, 0);
2629
        break;
2630
    case TARGET_NR_setrlimit:
2631
        {
2632
            /* XXX: convert resource ? */
2633
            int resource = arg1;
2634
            struct target_rlimit *target_rlim;
2635
            struct rlimit rlim;
2636
            lock_user_struct(target_rlim, arg2, 1);
2637
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2638
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
2639
            unlock_user_struct(target_rlim, arg2, 0);
2640
            ret = get_errno(setrlimit(resource, &rlim));
2641
        }
2642
        break;
2643
    case TARGET_NR_getrlimit:
2644
        {
2645
            /* XXX: convert resource ? */
2646
            int resource = arg1;
2647
            struct target_rlimit *target_rlim;
2648
            struct rlimit rlim;
2649
            
2650
            ret = get_errno(getrlimit(resource, &rlim));
2651
            if (!is_error(ret)) {
2652
                lock_user_struct(target_rlim, arg2, 0);
2653
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2654
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
2655
                unlock_user_struct(target_rlim, arg2, 1);
2656
            }
2657
        }
2658
        break;
2659
    case TARGET_NR_getrusage:
2660
        {
2661
            struct rusage rusage;
2662
            ret = get_errno(getrusage(arg1, &rusage));
2663
            if (!is_error(ret)) {
2664
                host_to_target_rusage(arg2, &rusage);
2665
            }
2666
        }
2667
        break;
2668
    case TARGET_NR_gettimeofday:
2669
        {
2670
            struct timeval tv;
2671
            ret = get_errno(gettimeofday(&tv, NULL));
2672
            if (!is_error(ret)) {
2673
                host_to_target_timeval(arg1, &tv);
2674
            }
2675
        }
2676
        break;
2677
    case TARGET_NR_settimeofday:
2678
        {
2679
            struct timeval tv;
2680
            target_to_host_timeval(&tv, arg1);
2681
            ret = get_errno(settimeofday(&tv, NULL));
2682
        }
2683
        break;
2684
#ifdef TARGET_NR_select
2685
    case TARGET_NR_select:
2686
        {
2687
            struct target_sel_arg_struct *sel;
2688
            target_ulong inp, outp, exp, tvp;
2689
            long nsel;
2690

    
2691
            lock_user_struct(sel, arg1, 1);
2692
            nsel = tswapl(sel->n);
2693
            inp = tswapl(sel->inp);
2694
            outp = tswapl(sel->outp);
2695
            exp = tswapl(sel->exp);
2696
            tvp = tswapl(sel->tvp);
2697
            unlock_user_struct(sel, arg1, 0);
2698
            ret = do_select(nsel, inp, outp, exp, tvp);
2699
        }
2700
        break;
2701
#endif
2702
    case TARGET_NR_symlink:
2703
        {
2704
            void *p2;
2705
            p = lock_user_string(arg1);
2706
            p2 = lock_user_string(arg2);
2707
            ret = get_errno(symlink(p, p2));
2708
            unlock_user(p2, arg2, 0);
2709
            unlock_user(p, arg1, 0);
2710
        }
2711
        break;
2712
#ifdef TARGET_NR_oldlstat
2713
    case TARGET_NR_oldlstat:
2714
        goto unimplemented;
2715
#endif
2716
    case TARGET_NR_readlink:
2717
        {
2718
            void *p2;
2719
            p = lock_user_string(arg1);
2720
            p2 = lock_user(arg2, arg3, 0);
2721
            ret = get_errno(readlink(path(p), p2, arg3));
2722
            unlock_user(p2, arg2, ret);
2723
            unlock_user(p, arg1, 0);
2724
        }
2725
        break;
2726
    case TARGET_NR_uselib:
2727
        goto unimplemented;
2728
    case TARGET_NR_swapon:
2729
        p = lock_user_string(arg1);
2730
        ret = get_errno(swapon(p, arg2));
2731
        unlock_user(p, arg1, 0);
2732
        break;
2733
    case TARGET_NR_reboot:
2734
        goto unimplemented;
2735
    case TARGET_NR_readdir:
2736
        goto unimplemented;
2737
    case TARGET_NR_mmap:
2738
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
2739
        {
2740
            target_ulong *v;
2741
            target_ulong v1, v2, v3, v4, v5, v6;
2742
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
2743
            v1 = tswapl(v[0]);
2744
            v2 = tswapl(v[1]);
2745
            v3 = tswapl(v[2]);
2746
            v4 = tswapl(v[3]);
2747
            v5 = tswapl(v[4]);
2748
            v6 = tswapl(v[5]);
2749
            unlock_user(v, arg1, 0);
2750
            ret = get_errno(target_mmap(v1, v2, v3, 
2751
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
2752
                                        v5, v6));
2753
        }
2754
#else
2755
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2756
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2757
                                    arg5,
2758
                                    arg6));
2759
#endif
2760
        break;
2761
#ifdef TARGET_NR_mmap2
2762
    case TARGET_NR_mmap2:
2763
#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
2764
#define MMAP_SHIFT 12
2765
#else
2766
#define MMAP_SHIFT TARGET_PAGE_BITS
2767
#endif
2768
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
2769
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
2770
                                    arg5,
2771
                                    arg6 << MMAP_SHIFT));
2772
        break;
2773
#endif
2774
    case TARGET_NR_munmap:
2775
        ret = get_errno(target_munmap(arg1, arg2));
2776
        break;
2777
    case TARGET_NR_mprotect:
2778
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
2779
        break;
2780
    case TARGET_NR_mremap:
2781
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2782
        break;
2783
        /* ??? msync/mlock/munlock are broken for softmmu.  */
2784
    case TARGET_NR_msync:
2785
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
2786
        break;
2787
    case TARGET_NR_mlock:
2788
        ret = get_errno(mlock(g2h(arg1), arg2));
2789
        break;
2790
    case TARGET_NR_munlock:
2791
        ret = get_errno(munlock(g2h(arg1), arg2));
2792
        break;
2793
    case TARGET_NR_mlockall:
2794
        ret = get_errno(mlockall(arg1));
2795
        break;
2796
    case TARGET_NR_munlockall:
2797
        ret = get_errno(munlockall());
2798
        break;
2799
    case TARGET_NR_truncate:
2800
        p = lock_user_string(arg1);
2801
        ret = get_errno(truncate(p, arg2));
2802
        unlock_user(p, arg1, 0);
2803
        break;
2804
    case TARGET_NR_ftruncate:
2805
        ret = get_errno(ftruncate(arg1, arg2));
2806
        break;
2807
    case TARGET_NR_fchmod:
2808
        ret = get_errno(fchmod(arg1, arg2));
2809
        break;
2810
    case TARGET_NR_getpriority:
2811
        ret = get_errno(getpriority(arg1, arg2));
2812
        break;
2813
    case TARGET_NR_setpriority:
2814
        ret = get_errno(setpriority(arg1, arg2, arg3));
2815
        break;
2816
#ifdef TARGET_NR_profil
2817
    case TARGET_NR_profil:
2818
        goto unimplemented;
2819
#endif
2820
    case TARGET_NR_statfs:
2821
        p = lock_user_string(arg1);
2822
        ret = get_errno(statfs(path(p), &stfs));
2823
        unlock_user(p, arg1, 0);
2824
    convert_statfs:
2825
        if (!is_error(ret)) {
2826
            struct target_statfs *target_stfs;
2827
            
2828
            lock_user_struct(target_stfs, arg2, 0);
2829
            /* ??? put_user is probably wrong.  */
2830
            put_user(stfs.f_type, &target_stfs->f_type);
2831
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2832
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2833
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2834
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2835
            put_user(stfs.f_files, &target_stfs->f_files);
2836
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2837
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2838
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2839
            unlock_user_struct(target_stfs, arg2, 1);
2840
        }
2841
        break;
2842
    case TARGET_NR_fstatfs:
2843
        ret = get_errno(fstatfs(arg1, &stfs));
2844
        goto convert_statfs;
2845
#ifdef TARGET_NR_statfs64
2846
    case TARGET_NR_statfs64:
2847
        p = lock_user_string(arg1);
2848
        ret = get_errno(statfs(path(p), &stfs));
2849
        unlock_user(p, arg1, 0);
2850
    convert_statfs64:
2851
        if (!is_error(ret)) {
2852
            struct target_statfs64 *target_stfs;
2853
            
2854
            lock_user_struct(target_stfs, arg3, 0);
2855
            /* ??? put_user is probably wrong.  */
2856
            put_user(stfs.f_type, &target_stfs->f_type);
2857
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
2858
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
2859
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
2860
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
2861
            put_user(stfs.f_files, &target_stfs->f_files);
2862
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
2863
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid);
2864
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
2865
            unlock_user_struct(target_stfs, arg3, 0);
2866
        }
2867
        break;
2868
    case TARGET_NR_fstatfs64:
2869
        ret = get_errno(fstatfs(arg1, &stfs));
2870
        goto convert_statfs64;
2871
#endif
2872
#ifdef TARGET_NR_ioperm
2873
    case TARGET_NR_ioperm:
2874
        goto unimplemented;
2875
#endif
2876
    case TARGET_NR_socketcall:
2877
        ret = do_socketcall(arg1, arg2);
2878
        break;
2879

    
2880
#ifdef TARGET_NR_accept
2881
    case TARGET_NR_accept:
2882
        ret = do_accept(arg1, arg2, arg3);
2883
        break;
2884
#endif
2885
#ifdef TARGET_NR_bind
2886
    case TARGET_NR_bind:
2887
        ret = do_bind(arg1, arg2, arg3);
2888
        break;
2889
#endif
2890
#ifdef TARGET_NR_connect
2891
    case TARGET_NR_connect:
2892
        ret = do_connect(arg1, arg2, arg3);
2893
        break;
2894
#endif
2895
#ifdef TARGET_NR_getpeername
2896
    case TARGET_NR_getpeername:
2897
        ret = do_getpeername(arg1, arg2, arg3);
2898
        break;
2899
#endif
2900
#ifdef TARGET_NR_getsockname
2901
    case TARGET_NR_getsockname:
2902
        ret = do_getsockname(arg1, arg2, arg3);
2903
        break;
2904
#endif
2905
#ifdef TARGET_NR_getsockopt
2906
    case TARGET_NR_getsockopt:
2907
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
2908
        break;
2909
#endif
2910
#ifdef TARGET_NR_listen
2911
    case TARGET_NR_listen:
2912
        ret = get_errno(listen(arg1, arg2));
2913
        break;
2914
#endif
2915
#ifdef TARGET_NR_recv
2916
    case TARGET_NR_recv:
2917
        ret = do_recvfrom(arg1, arg1, arg3, arg4, 0, 0);
2918
        break;
2919
#endif
2920
#ifdef TARGET_NR_recvfrom
2921
    case TARGET_NR_recvfrom:
2922
        ret = do_recvfrom(arg1, arg1, arg3, arg4, arg5, arg6);
2923
        break;
2924
#endif
2925
#ifdef TARGET_NR_recvmsg
2926
    case TARGET_NR_recvmsg:
2927
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
2928
        break;
2929
#endif
2930
#ifdef TARGET_NR_send
2931
    case TARGET_NR_send:
2932
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
2933
        break;
2934
#endif
2935
#ifdef TARGET_NR_sendmsg
2936
    case TARGET_NR_sendmsg:
2937
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
2938
        break;
2939
#endif
2940
#ifdef TARGET_NR_sendto
2941
    case TARGET_NR_sendto:
2942
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
2943
        break;
2944
#endif
2945
#ifdef TARGET_NR_shutdown
2946
    case TARGET_NR_shutdown:
2947
        ret = get_errno(shutdown(arg1, arg2));
2948
        break;
2949
#endif
2950
#ifdef TARGET_NR_socket
2951
    case TARGET_NR_socket:
2952
        ret = do_socket(arg1, arg2, arg3);
2953
        break;
2954
#endif
2955
#ifdef TARGET_NR_socketpair
2956
    case TARGET_NR_socketpair:
2957
        ret = do_socketpair(arg1, arg2, arg3, arg4);
2958
        break;
2959
#endif
2960
#ifdef TARGET_NR_setsockopt
2961
    case TARGET_NR_setsockopt:
2962
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
2963
        break;
2964
#endif
2965

    
2966
    case TARGET_NR_syslog:
2967
        p = lock_user_string(arg2);
2968
        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
2969
        unlock_user(p, arg2, 0);
2970
        break;
2971

    
2972
    case TARGET_NR_setitimer:
2973
        {
2974
            struct itimerval value, ovalue, *pvalue;
2975

    
2976
            if (arg2) {
2977
                pvalue = &value;
2978
                target_to_host_timeval(&pvalue->it_interval, 
2979
                                       arg2);
2980
                target_to_host_timeval(&pvalue->it_value, 
2981
                                       arg2 + sizeof(struct target_timeval));
2982
            } else {
2983
                pvalue = NULL;
2984
            }
2985
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2986
            if (!is_error(ret) && arg3) {
2987
                host_to_target_timeval(arg3,
2988
                                       &ovalue.it_interval);
2989
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
2990
                                       &ovalue.it_value);
2991
            }
2992
        }
2993
        break;
2994
    case TARGET_NR_getitimer:
2995
        {
2996
            struct itimerval value;
2997
            
2998
            ret = get_errno(getitimer(arg1, &value));
2999
            if (!is_error(ret) && arg2) {
3000
                host_to_target_timeval(arg2,
3001
                                       &value.it_interval);
3002
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
3003
                                       &value.it_value);
3004
            }
3005
        }
3006
        break;
3007
    case TARGET_NR_stat:
3008
        p = lock_user_string(arg1);
3009
        ret = get_errno(stat(path(p), &st));
3010
        unlock_user(p, arg1, 0);
3011
        goto do_stat;
3012
    case TARGET_NR_lstat:
3013
        p = lock_user_string(arg1);
3014
        ret = get_errno(lstat(path(p), &st));
3015
        unlock_user(p, arg1, 0);
3016
        goto do_stat;
3017
    case TARGET_NR_fstat:
3018
        {
3019
            ret = get_errno(fstat(arg1, &st));
3020
        do_stat:
3021
            if (!is_error(ret)) {
3022
                struct target_stat *target_st;
3023
                
3024
                lock_user_struct(target_st, arg2, 0);
3025
                target_st->st_dev = tswap16(st.st_dev);
3026
                target_st->st_ino = tswapl(st.st_ino);
3027
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
3028
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
3029
                target_st->st_uid = tswap32(st.st_uid);
3030
                target_st->st_gid = tswap32(st.st_gid);
3031
#else
3032
                target_st->st_mode = tswap16(st.st_mode);
3033
                target_st->st_uid = tswap16(st.st_uid);
3034
                target_st->st_gid = tswap16(st.st_gid);
3035
#endif
3036
                target_st->st_nlink = tswap16(st.st_nlink);
3037
                target_st->st_rdev = tswap16(st.st_rdev);
3038
                target_st->st_size = tswapl(st.st_size);
3039
                target_st->st_blksize = tswapl(st.st_blksize);
3040
                target_st->st_blocks = tswapl(st.st_blocks);
3041
                target_st->target_st_atime = tswapl(st.st_atime);
3042
                target_st->target_st_mtime = tswapl(st.st_mtime);
3043
                target_st->target_st_ctime = tswapl(st.st_ctime);
3044
                unlock_user_struct(target_st, arg2, 1);
3045
            }
3046
        }
3047
        break;
3048
#ifdef TARGET_NR_olduname
3049
    case TARGET_NR_olduname:
3050
        goto unimplemented;
3051
#endif
3052
#ifdef TARGET_NR_iopl
3053
    case TARGET_NR_iopl:
3054
        goto unimplemented;
3055
#endif
3056
    case TARGET_NR_vhangup:
3057
        ret = get_errno(vhangup());
3058
        break;
3059
#ifdef TARGET_NR_idle
3060
    case TARGET_NR_idle:
3061
        goto unimplemented;
3062
#endif
3063
#ifdef TARGET_NR_syscall
3064
    case TARGET_NR_syscall:
3065
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
3066
            break;
3067
#endif
3068
    case TARGET_NR_wait4:
3069
        {
3070
            int status;
3071
            target_long status_ptr = arg2;
3072
            struct rusage rusage, *rusage_ptr;
3073
            target_ulong target_rusage = arg4;
3074
            if (target_rusage)
3075
                rusage_ptr = &rusage;
3076
            else
3077
                rusage_ptr = NULL;
3078
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
3079
            if (!is_error(ret)) {
3080
                if (status_ptr)
3081
                    tputl(status_ptr, status);
3082
                if (target_rusage) {
3083
                    host_to_target_rusage(target_rusage, &rusage);
3084
                }
3085
            }
3086
        }
3087
        break;
3088
    case TARGET_NR_swapoff:
3089
        p = lock_user_string(arg1);
3090
        ret = get_errno(swapoff(p));
3091
        unlock_user(p, arg1, 0);
3092
        break;
3093
    case TARGET_NR_sysinfo:
3094
        {
3095
            struct target_sysinfo *target_value;
3096
            struct sysinfo value;
3097
            ret = get_errno(sysinfo(&value));
3098
            if (!is_error(ret) && arg1)
3099
            {
3100
                /* ??? __put_user is probably wrong.  */
3101
                lock_user_struct(target_value, arg1, 0);
3102
                __put_user(value.uptime, &target_value->uptime);
3103
                __put_user(value.loads[0], &target_value->loads[0]);
3104
                __put_user(value.loads[1], &target_value->loads[1]);
3105
                __put_user(value.loads[2], &target_value->loads[2]);
3106
                __put_user(value.totalram, &target_value->totalram);
3107
                __put_user(value.freeram, &target_value->freeram);
3108
                __put_user(value.sharedram, &target_value->sharedram);
3109
                __put_user(value.bufferram, &target_value->bufferram);
3110
                __put_user(value.totalswap, &target_value->totalswap);
3111
                __put_user(value.freeswap, &target_value->freeswap);
3112
                __put_user(value.procs, &target_value->procs);
3113
                __put_user(value.totalhigh, &target_value->totalhigh);
3114
                __put_user(value.freehigh, &target_value->freehigh);
3115
                __put_user(value.mem_unit, &target_value->mem_unit);
3116
                unlock_user_struct(target_value, arg1, 1);
3117
            }
3118
        }
3119
        break;
3120
    case TARGET_NR_ipc:
3121
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3122
        break;
3123
    case TARGET_NR_fsync:
3124
        ret = get_errno(fsync(arg1));
3125
        break;
3126
    case TARGET_NR_clone:
3127
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3128
        break;
3129
#ifdef __NR_exit_group
3130
        /* new thread calls */
3131
    case TARGET_NR_exit_group:
3132
        gdb_exit(cpu_env, arg1);
3133
        ret = get_errno(exit_group(arg1));
3134
        break;
3135
#endif
3136
    case TARGET_NR_setdomainname:
3137
        p = lock_user_string(arg1);
3138
        ret = get_errno(setdomainname(p, arg2));
3139
        unlock_user(p, arg1, 0);
3140
        break;
3141
    case TARGET_NR_uname:
3142
        /* no need to transcode because we use the linux syscall */
3143
        {
3144
            struct new_utsname * buf;
3145
    
3146
            lock_user_struct(buf, arg1, 0);
3147
            ret = get_errno(sys_uname(buf));
3148
            if (!is_error(ret)) {
3149
                /* Overrite the native machine name with whatever is being
3150
                   emulated. */
3151
                strcpy (buf->machine, UNAME_MACHINE);
3152
                /* Allow the user to override the reported release.  */
3153
                if (qemu_uname_release && *qemu_uname_release)
3154
                  strcpy (buf->release, qemu_uname_release);
3155
            }
3156
            unlock_user_struct(buf, arg1, 1);
3157
        }
3158
        break;
3159
#ifdef TARGET_I386
3160
    case TARGET_NR_modify_ldt:
3161
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3162
        break;
3163
    case TARGET_NR_vm86old:
3164
        goto unimplemented;
3165
    case TARGET_NR_vm86:
3166
        ret = do_vm86(cpu_env, arg1, arg2);
3167
        break;
3168
#endif
3169
    case TARGET_NR_adjtimex:
3170
        goto unimplemented;
3171
    case TARGET_NR_create_module:
3172
    case TARGET_NR_init_module:
3173
    case TARGET_NR_delete_module:
3174
    case TARGET_NR_get_kernel_syms:
3175
        goto unimplemented;
3176
    case TARGET_NR_quotactl:
3177
        goto unimplemented;
3178
    case TARGET_NR_getpgid:
3179
        ret = get_errno(getpgid(arg1));
3180
        break;
3181
    case TARGET_NR_fchdir:
3182
        ret = get_errno(fchdir(arg1));
3183
        break;
3184
    case TARGET_NR_bdflush:
3185
        goto unimplemented;
3186
    case TARGET_NR_sysfs:
3187
        goto unimplemented;
3188
    case TARGET_NR_personality:
3189
        ret = get_errno(personality(arg1));
3190
        break;
3191
    case TARGET_NR_afs_syscall:
3192
        goto unimplemented;
3193
    case TARGET_NR__llseek:
3194
        {
3195
#if defined (__x86_64__)
3196
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
3197
            tput64(arg4, ret);
3198
#else
3199
            int64_t res;
3200
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
3201
            tput64(arg4, res);
3202
#endif
3203
        }
3204
        break;
3205
    case TARGET_NR_getdents:
3206
#if TARGET_LONG_SIZE != 4
3207
        goto unimplemented;
3208
#warning not supported
3209
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
3210
        {
3211
            struct target_dirent *target_dirp;
3212
            struct dirent *dirp;
3213
            long count = arg3;
3214

    
3215
            dirp = malloc(count);
3216
            if (!dirp)
3217
                return -ENOMEM;
3218
            
3219
            ret = get_errno(sys_getdents(arg1, dirp, count));
3220
            if (!is_error(ret)) {
3221
                struct dirent *de;
3222
                struct target_dirent *tde;
3223
                int len = ret;
3224
                int reclen, treclen;
3225
                int count1, tnamelen;
3226

    
3227
                count1 = 0;
3228
                de = dirp;
3229
                target_dirp = lock_user(arg2, count, 0);
3230
                tde = target_dirp;
3231
                while (len > 0) {
3232
                    reclen = de->d_reclen;
3233
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
3234
                    tde->d_reclen = tswap16(treclen);
3235
                    tde->d_ino = tswapl(de->d_ino);
3236
                    tde->d_off = tswapl(de->d_off);
3237
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
3238
                    if (tnamelen > 256)
3239
                        tnamelen = 256;
3240
                    /* XXX: may not be correct */
3241
                    strncpy(tde->d_name, de->d_name, tnamelen);
3242
                    de = (struct dirent *)((char *)de + reclen);
3243
                    len -= reclen;
3244
                    tde = (struct dirent *)((char *)tde + treclen);
3245
                    count1 += treclen;
3246
                }
3247
                ret = count1;
3248
            }
3249
            unlock_user(target_dirp, arg2, ret);
3250
            free(dirp);
3251
        }
3252
#else
3253
        {
3254
            struct dirent *dirp;
3255
            long count = arg3;
3256

    
3257
            dirp = lock_user(arg2, count, 0);
3258
            ret = get_errno(sys_getdents(arg1, dirp, count));
3259
            if (!is_error(ret)) {
3260
                struct dirent *de;
3261
                int len = ret;
3262
                int reclen;
3263
                de = dirp;
3264
                while (len > 0) {
3265
                    reclen = de->d_reclen;
3266
                    if (reclen > len)
3267
                        break;
3268
                    de->d_reclen = tswap16(reclen);
3269
                    tswapls(&de->d_ino);
3270
                    tswapls(&de->d_off);
3271
                    de = (struct dirent *)((char *)de + reclen);
3272
                    len -= reclen;
3273
                }
3274
            }
3275
            unlock_user(dirp, arg2, ret);
3276
        }
3277
#endif
3278
        break;
3279
#ifdef TARGET_NR_getdents64
3280
    case TARGET_NR_getdents64:
3281
        {
3282
            struct dirent64 *dirp;
3283
            long count = arg3;
3284
            dirp = lock_user(arg2, count, 0);
3285
            ret = get_errno(sys_getdents64(arg1, dirp, count));
3286
            if (!is_error(ret)) {
3287
                struct dirent64 *de;
3288
                int len = ret;
3289
                int reclen;
3290
                de = dirp;
3291
                while (len > 0) {
3292
                    reclen = de->d_reclen;
3293
                    if (reclen > len)
3294
                        break;
3295
                    de->d_reclen = tswap16(reclen);
3296
                    tswap64s(&de->d_ino);
3297
                    tswap64s(&de->d_off);
3298
                    de = (struct dirent64 *)((char *)de + reclen);
3299
                    len -= reclen;
3300
                }
3301
            }
3302
            unlock_user(dirp, arg2, ret);
3303
        }
3304
        break;
3305
#endif /* TARGET_NR_getdents64 */
3306
    case TARGET_NR__newselect:
3307
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
3308
        break;
3309
    case TARGET_NR_poll:
3310
        {
3311
            struct target_pollfd *target_pfd;
3312
            unsigned int nfds = arg2;
3313
            int timeout = arg3;
3314
            struct pollfd *pfd;
3315
            unsigned int i;
3316

    
3317
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3318
            pfd = alloca(sizeof(struct pollfd) * nfds);
3319
            for(i = 0; i < nfds; i++) {
3320
                pfd[i].fd = tswap32(target_pfd[i].fd);
3321
                pfd[i].events = tswap16(target_pfd[i].events);
3322
            }
3323
            ret = get_errno(poll(pfd, nfds, timeout));
3324
            if (!is_error(ret)) {
3325
                for(i = 0; i < nfds; i++) {
3326
                    target_pfd[i].revents = tswap16(pfd[i].revents);
3327
                }
3328
                ret += nfds * (sizeof(struct target_pollfd)
3329
                               - sizeof(struct pollfd));
3330
            }
3331
            unlock_user(target_pfd, arg1, ret);
3332
        }
3333
        break;
3334
    case TARGET_NR_flock:
3335
        /* NOTE: the flock constant seems to be the same for every
3336
           Linux platform */
3337
        ret = get_errno(flock(arg1, arg2));
3338
        break;
3339
    case TARGET_NR_readv:
3340
        {
3341
            int count = arg3;
3342
            struct iovec *vec;
3343

    
3344
            vec = alloca(count * sizeof(struct iovec));
3345
            lock_iovec(vec, arg2, count, 0);
3346
            ret = get_errno(readv(arg1, vec, count));
3347
            unlock_iovec(vec, arg2, count, 1);
3348
        }
3349
        break;
3350
    case TARGET_NR_writev:
3351
        {
3352
            int count = arg3;
3353
            struct iovec *vec;
3354

    
3355
            vec = alloca(count * sizeof(struct iovec));
3356
            lock_iovec(vec, arg2, count, 1);
3357
            ret = get_errno(writev(arg1, vec, count));
3358
            unlock_iovec(vec, arg2, count, 0);
3359
        }
3360
        break;
3361
    case TARGET_NR_getsid:
3362
        ret = get_errno(getsid(arg1));
3363
        break;
3364
    case TARGET_NR_fdatasync:
3365
        ret = get_errno(fdatasync(arg1));
3366
        break;
3367
    case TARGET_NR__sysctl:
3368
        /* We don't implement this, but ENODIR is always a safe
3369
           return value. */
3370
        return -ENOTDIR;
3371
    case TARGET_NR_sched_setparam:
3372
        {
3373
            struct sched_param *target_schp;
3374
            struct sched_param schp;
3375

    
3376
            lock_user_struct(target_schp, arg2, 1);
3377
            schp.sched_priority = tswap32(target_schp->sched_priority);
3378
            unlock_user_struct(target_schp, arg2, 0);
3379
            ret = get_errno(sched_setparam(arg1, &schp));
3380
        }
3381
        break;
3382
    case TARGET_NR_sched_getparam:
3383
        {
3384
            struct sched_param *target_schp;
3385
            struct sched_param schp;
3386
            ret = get_errno(sched_getparam(arg1, &schp));
3387
            if (!is_error(ret)) {
3388
                lock_user_struct(target_schp, arg2, 0);
3389
                target_schp->sched_priority = tswap32(schp.sched_priority);
3390
                unlock_user_struct(target_schp, arg2, 1);
3391
            }
3392
        }
3393
        break;
3394
    case TARGET_NR_sched_setscheduler:
3395
        {
3396
            struct sched_param *target_schp;
3397
            struct sched_param schp;
3398
            lock_user_struct(target_schp, arg3, 1);
3399
            schp.sched_priority = tswap32(target_schp->sched_priority);
3400
            unlock_user_struct(target_schp, arg3, 0);
3401
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
3402
        }
3403
        break;
3404
    case TARGET_NR_sched_getscheduler:
3405
        ret = get_errno(sched_getscheduler(arg1));
3406
        break;
3407
    case TARGET_NR_sched_yield:
3408
        ret = get_errno(sched_yield());
3409
        break;
3410
    case TARGET_NR_sched_get_priority_max:
3411
        ret = get_errno(sched_get_priority_max(arg1));
3412
        break;
3413
    case TARGET_NR_sched_get_priority_min:
3414
        ret = get_errno(sched_get_priority_min(arg1));
3415
        break;
3416
    case TARGET_NR_sched_rr_get_interval:
3417
        {
3418
            struct timespec ts;
3419
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
3420
            if (!is_error(ret)) {
3421
                host_to_target_timespec(arg2, &ts);
3422
            }
3423
        }
3424
        break;
3425
    case TARGET_NR_nanosleep:
3426
        {
3427
            struct timespec req, rem;
3428
            target_to_host_timespec(&req, arg1);
3429
            ret = get_errno(nanosleep(&req, &rem));
3430
            if (is_error(ret) && arg2) {
3431
                host_to_target_timespec(arg2, &rem);
3432
            }
3433
        }
3434
        break;
3435
    case TARGET_NR_query_module:
3436
        goto unimplemented;
3437
    case TARGET_NR_nfsservctl:
3438
        goto unimplemented;
3439
    case TARGET_NR_prctl:
3440
        switch (arg1)
3441
            {
3442
            case PR_GET_PDEATHSIG:
3443
                {
3444
                    int deathsig;
3445
                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
3446
                    if (!is_error(ret) && arg2)
3447
                        tput32(arg2, deathsig);
3448
                }
3449
                break;
3450
            default:
3451
                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
3452
                break;
3453
            }
3454
        break;
3455
#ifdef TARGET_NR_pread
3456
    case TARGET_NR_pread:
3457
        page_unprotect_range(arg2, arg3);
3458
        p = lock_user(arg2, arg3, 0);
3459
        ret = get_errno(pread(arg1, p, arg3, arg4));
3460
        unlock_user(p, arg2, ret);
3461
        break;
3462
    case TARGET_NR_pwrite:
3463
        p = lock_user(arg2, arg3, 1);
3464
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
3465
        unlock_user(p, arg2, 0);
3466
        break;
3467
#endif
3468
    case TARGET_NR_getcwd:
3469
        p = lock_user(arg1, arg2, 0);
3470
        ret = get_errno(sys_getcwd1(p, arg2));
3471
        unlock_user(p, arg1, ret);
3472
        break;
3473
    case TARGET_NR_capget:
3474
        goto unimplemented;
3475
    case TARGET_NR_capset:
3476
        goto unimplemented;
3477
    case TARGET_NR_sigaltstack:
3478
        goto unimplemented;
3479
    case TARGET_NR_sendfile:
3480
        goto unimplemented;
3481
#ifdef TARGET_NR_getpmsg
3482
    case TARGET_NR_getpmsg:
3483
        goto unimplemented;
3484
#endif
3485
#ifdef TARGET_NR_putpmsg
3486
    case TARGET_NR_putpmsg:
3487
        goto unimplemented;
3488
#endif
3489
#ifdef TARGET_NR_vfork
3490
    case TARGET_NR_vfork:
3491
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
3492
        break;
3493
#endif
3494
#ifdef TARGET_NR_ugetrlimit
3495
    case TARGET_NR_ugetrlimit:
3496
    {
3497
        struct rlimit rlim;
3498
        ret = get_errno(getrlimit(arg1, &rlim));
3499
        if (!is_error(ret)) {
3500
            struct target_rlimit *target_rlim;
3501
            lock_user_struct(target_rlim, arg2, 0);
3502
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
3503
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
3504
            unlock_user_struct(target_rlim, arg2, 1);
3505
        }
3506
        break;
3507
    }
3508
#endif
3509
#ifdef TARGET_NR_truncate64
3510
    case TARGET_NR_truncate64:
3511
        p = lock_user_string(arg1);
3512
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
3513
        unlock_user(p, arg1, 0);
3514
        break;
3515
#endif
3516
#ifdef TARGET_NR_ftruncate64
3517
    case TARGET_NR_ftruncate64:
3518
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
3519
        break;
3520
#endif
3521
#ifdef TARGET_NR_stat64
3522
    case TARGET_NR_stat64:
3523
        p = lock_user_string(arg1);
3524
        ret = get_errno(stat(path(p), &st));
3525
        unlock_user(p, arg1, 0);
3526
        goto do_stat64;
3527
#endif
3528
#ifdef TARGET_NR_lstat64
3529
    case TARGET_NR_lstat64:
3530
        p = lock_user_string(arg1);
3531
        ret = get_errno(lstat(path(p), &st));
3532
        unlock_user(p, arg1, 0);
3533
        goto do_stat64;
3534
#endif
3535
#ifdef TARGET_NR_fstat64
3536
    case TARGET_NR_fstat64:
3537
        {
3538
            ret = get_errno(fstat(arg1, &st));
3539
        do_stat64:
3540
            if (!is_error(ret)) {
3541
#ifdef TARGET_ARM
3542
                if (((CPUARMState *)cpu_env)->eabi) {
3543
                    struct target_eabi_stat64 *target_st;
3544
                    lock_user_struct(target_st, arg2, 1);
3545
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
3546
                    /* put_user is probably wrong.  */
3547
                    put_user(st.st_dev, &target_st->st_dev);
3548
                    put_user(st.st_ino, &target_st->st_ino);
3549
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3550
                    put_user(st.st_ino, &target_st->__st_ino);
3551
#endif
3552
                    put_user(st.st_mode, &target_st->st_mode);
3553
                    put_user(st.st_nlink, &target_st->st_nlink);
3554
                    put_user(st.st_uid, &target_st->st_uid);
3555
                    put_user(st.st_gid, &target_st->st_gid);
3556
                    put_user(st.st_rdev, &target_st->st_rdev);
3557
                    /* XXX: better use of kernel struct */
3558
                    put_user(st.st_size, &target_st->st_size);
3559
                    put_user(st.st_blksize, &target_st->st_blksize);
3560
                    put_user(st.st_blocks, &target_st->st_blocks);
3561
                    put_user(st.st_atime, &target_st->target_st_atime);
3562
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3563
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3564
                    unlock_user_struct(target_st, arg2, 0);
3565
                } else
3566
#endif
3567
                {
3568
                    struct target_stat64 *target_st;
3569
                    lock_user_struct(target_st, arg2, 1);
3570
                    memset(target_st, 0, sizeof(struct target_stat64));
3571
                    /* ??? put_user is probably wrong.  */
3572
                    put_user(st.st_dev, &target_st->st_dev);
3573
                    put_user(st.st_ino, &target_st->st_ino);
3574
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
3575
                    put_user(st.st_ino, &target_st->__st_ino);
3576
#endif
3577
                    put_user(st.st_mode, &target_st->st_mode);
3578
                    put_user(st.st_nlink, &target_st->st_nlink);
3579
                    put_user(st.st_uid, &target_st->st_uid);
3580
                    put_user(st.st_gid, &target_st->st_gid);
3581
                    put_user(st.st_rdev, &target_st->st_rdev);
3582
                    /* XXX: better use of kernel struct */
3583
                    put_user(st.st_size, &target_st->st_size);
3584
                    put_user(st.st_blksize, &target_st->st_blksize);
3585
                    put_user(st.st_blocks, &target_st->st_blocks);
3586
                    put_user(st.st_atime, &target_st->target_st_atime);
3587
                    put_user(st.st_mtime, &target_st->target_st_mtime);
3588
                    put_user(st.st_ctime, &target_st->target_st_ctime);
3589
                    unlock_user_struct(target_st, arg2, 0);
3590
                }
3591
            }
3592
        }
3593
        break;
3594
#endif
3595
#ifdef USE_UID16
3596
    case TARGET_NR_lchown:
3597
        p = lock_user_string(arg1);
3598
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
3599
        unlock_user(p, arg1, 0);
3600
        break;
3601
    case TARGET_NR_getuid:
3602
        ret = get_errno(high2lowuid(getuid()));
3603
        break;
3604
    case TARGET_NR_getgid:
3605
        ret = get_errno(high2lowgid(getgid()));
3606
        break;
3607
    case TARGET_NR_geteuid:
3608
        ret = get_errno(high2lowuid(geteuid()));
3609
        break;
3610
    case TARGET_NR_getegid:
3611
        ret = get_errno(high2lowgid(getegid()));
3612
        break;
3613
    case TARGET_NR_setreuid:
3614
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
3615
        break;
3616
    case TARGET_NR_setregid:
3617
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
3618
        break;
3619
    case TARGET_NR_getgroups:
3620
        {
3621
            int gidsetsize = arg1;
3622
            uint16_t *target_grouplist;
3623
            gid_t *grouplist;
3624
            int i;
3625

    
3626
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3627
            ret = get_errno(getgroups(gidsetsize, grouplist));
3628
            if (!is_error(ret)) {
3629
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
3630
                for(i = 0;i < gidsetsize; i++)
3631
                    target_grouplist[i] = tswap16(grouplist[i]);
3632
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
3633
            }
3634
        }
3635
        break;
3636
    case TARGET_NR_setgroups:
3637
        {
3638
            int gidsetsize = arg1;
3639
            uint16_t *target_grouplist;
3640
            gid_t *grouplist;
3641
            int i;
3642

    
3643
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3644
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
3645
            for(i = 0;i < gidsetsize; i++)
3646
                grouplist[i] = tswap16(target_grouplist[i]);
3647
            unlock_user(target_grouplist, arg2, 0);
3648
            ret = get_errno(setgroups(gidsetsize, grouplist));
3649
        }
3650
        break;
3651
    case TARGET_NR_fchown:
3652
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
3653
        break;
3654
#ifdef TARGET_NR_setresuid
3655
    case TARGET_NR_setresuid:
3656
        ret = get_errno(setresuid(low2highuid(arg1), 
3657
                                  low2highuid(arg2), 
3658
                                  low2highuid(arg3)));
3659
        break;
3660
#endif
3661
#ifdef TARGET_NR_getresuid
3662
    case TARGET_NR_getresuid:
3663
        {
3664
            uid_t ruid, euid, suid;
3665
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3666
            if (!is_error(ret)) {
3667
                tput16(arg1, tswap16(high2lowuid(ruid)));
3668
                tput16(arg2, tswap16(high2lowuid(euid)));
3669
                tput16(arg3, tswap16(high2lowuid(suid)));
3670
            }
3671
        }
3672
        break;
3673
#endif
3674
#ifdef TARGET_NR_getresgid
3675
    case TARGET_NR_setresgid:
3676
        ret = get_errno(setresgid(low2highgid(arg1), 
3677
                                  low2highgid(arg2), 
3678
                                  low2highgid(arg3)));
3679
        break;
3680
#endif
3681
#ifdef TARGET_NR_getresgid
3682
    case TARGET_NR_getresgid:
3683
        {
3684
            gid_t rgid, egid, sgid;
3685
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3686
            if (!is_error(ret)) {
3687
                tput16(arg1, tswap16(high2lowgid(rgid)));
3688
                tput16(arg2, tswap16(high2lowgid(egid)));
3689
                tput16(arg3, tswap16(high2lowgid(sgid)));
3690
            }
3691
        }
3692
        break;
3693
#endif
3694
    case TARGET_NR_chown:
3695
        p = lock_user_string(arg1);
3696
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
3697
        unlock_user(p, arg1, 0);
3698
        break;
3699
    case TARGET_NR_setuid:
3700
        ret = get_errno(setuid(low2highuid(arg1)));
3701
        break;
3702
    case TARGET_NR_setgid:
3703
        ret = get_errno(setgid(low2highgid(arg1)));
3704
        break;
3705
    case TARGET_NR_setfsuid:
3706
        ret = get_errno(setfsuid(arg1));
3707
        break;
3708
    case TARGET_NR_setfsgid:
3709
        ret = get_errno(setfsgid(arg1));
3710
        break;
3711
#endif /* USE_UID16 */
3712

    
3713
#ifdef TARGET_NR_lchown32
3714
    case TARGET_NR_lchown32:
3715
        p = lock_user_string(arg1);
3716
        ret = get_errno(lchown(p, arg2, arg3));
3717
        unlock_user(p, arg1, 0);
3718
        break;
3719
#endif
3720
#ifdef TARGET_NR_getuid32
3721
    case TARGET_NR_getuid32:
3722
        ret = get_errno(getuid());
3723
        break;
3724
#endif
3725
#ifdef TARGET_NR_getgid32
3726
    case TARGET_NR_getgid32:
3727
        ret = get_errno(getgid());
3728
        break;
3729
#endif
3730
#ifdef TARGET_NR_geteuid32
3731
    case TARGET_NR_geteuid32:
3732
        ret = get_errno(geteuid());
3733
        break;
3734
#endif
3735
#ifdef TARGET_NR_getegid32
3736
    case TARGET_NR_getegid32:
3737
        ret = get_errno(getegid());
3738
        break;
3739
#endif
3740
#ifdef TARGET_NR_setreuid32
3741
    case TARGET_NR_setreuid32:
3742
        ret = get_errno(setreuid(arg1, arg2));
3743
        break;
3744
#endif
3745
#ifdef TARGET_NR_setregid32
3746
    case TARGET_NR_setregid32:
3747
        ret = get_errno(setregid(arg1, arg2));
3748
        break;
3749
#endif
3750
#ifdef TARGET_NR_getgroups32
3751
    case TARGET_NR_getgroups32:
3752
        {
3753
            int gidsetsize = arg1;
3754
            uint32_t *target_grouplist;
3755
            gid_t *grouplist;
3756
            int i;
3757

    
3758
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3759
            ret = get_errno(getgroups(gidsetsize, grouplist));
3760
            if (!is_error(ret)) {
3761
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
3762
                for(i = 0;i < gidsetsize; i++)
3763
                    target_grouplist[i] = tswap32(grouplist[i]);
3764
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
3765
            }
3766
        }
3767
        break;
3768
#endif
3769
#ifdef TARGET_NR_setgroups32
3770
    case TARGET_NR_setgroups32:
3771
        {
3772
            int gidsetsize = arg1;
3773
            uint32_t *target_grouplist;
3774
            gid_t *grouplist;
3775
            int i;
3776
            
3777
            grouplist = alloca(gidsetsize * sizeof(gid_t));
3778
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
3779
            for(i = 0;i < gidsetsize; i++)
3780
                grouplist[i] = tswap32(target_grouplist[i]);
3781
            unlock_user(target_grouplist, arg2, 0);
3782
            ret = get_errno(setgroups(gidsetsize, grouplist));
3783
        }
3784
        break;
3785
#endif
3786
#ifdef TARGET_NR_fchown32
3787
    case TARGET_NR_fchown32:
3788
        ret = get_errno(fchown(arg1, arg2, arg3));
3789
        break;
3790
#endif
3791
#ifdef TARGET_NR_setresuid32
3792
    case TARGET_NR_setresuid32:
3793
        ret = get_errno(setresuid(arg1, arg2, arg3));
3794
        break;
3795
#endif
3796
#ifdef TARGET_NR_getresuid32
3797
    case TARGET_NR_getresuid32:
3798
        {
3799
            uid_t ruid, euid, suid;
3800
            ret = get_errno(getresuid(&ruid, &euid, &suid));
3801
            if (!is_error(ret)) {
3802
                tput32(arg1, tswap32(ruid));
3803
                tput32(arg2, tswap32(euid));
3804
                tput32(arg3, tswap32(suid));
3805
            }
3806
        }
3807
        break;
3808
#endif
3809
#ifdef TARGET_NR_setresgid32
3810
    case TARGET_NR_setresgid32:
3811
        ret = get_errno(setresgid(arg1, arg2, arg3));
3812
        break;
3813
#endif
3814
#ifdef TARGET_NR_getresgid32
3815
    case TARGET_NR_getresgid32:
3816
        {
3817
            gid_t rgid, egid, sgid;
3818
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
3819
            if (!is_error(ret)) {
3820
                tput32(arg1, tswap32(rgid));
3821
                tput32(arg2, tswap32(egid));
3822
                tput32(arg3, tswap32(sgid));
3823
            }
3824
        }
3825
        break;
3826
#endif
3827
#ifdef TARGET_NR_chown32
3828
    case TARGET_NR_chown32:
3829
        p = lock_user_string(arg1);
3830
        ret = get_errno(chown(p, arg2, arg3));
3831
        unlock_user(p, arg1, 0);
3832
        break;
3833
#endif
3834
#ifdef TARGET_NR_setuid32
3835
    case TARGET_NR_setuid32:
3836
        ret = get_errno(setuid(arg1));
3837
        break;
3838
#endif
3839
#ifdef TARGET_NR_setgid32
3840
    case TARGET_NR_setgid32:
3841
        ret = get_errno(setgid(arg1));
3842
        break;
3843
#endif
3844
#ifdef TARGET_NR_setfsuid32
3845
    case TARGET_NR_setfsuid32:
3846
        ret = get_errno(setfsuid(arg1));
3847
        break;
3848
#endif
3849
#ifdef TARGET_NR_setfsgid32
3850
    case TARGET_NR_setfsgid32:
3851
        ret = get_errno(setfsgid(arg1));
3852
        break;
3853
#endif
3854

    
3855
    case TARGET_NR_pivot_root:
3856
        goto unimplemented;
3857
#ifdef TARGET_NR_mincore
3858
    case TARGET_NR_mincore:
3859
        goto unimplemented;
3860
#endif
3861
#ifdef TARGET_NR_madvise
3862
    case TARGET_NR_madvise:
3863
        /* A straight passthrough may not be safe because qemu sometimes
3864
           turns private flie-backed mappings into anonymous mappings.
3865
           This will break MADV_DONTNEED.
3866
           This is a hint, so ignoring and returning success is ok.  */
3867
        ret = get_errno(0);
3868
        break;
3869
#endif
3870
#if TARGET_LONG_BITS == 32
3871
    case TARGET_NR_fcntl64:
3872
    {
3873
        struct flock64 fl;
3874
        struct target_flock64 *target_fl;
3875
#ifdef TARGET_ARM
3876
        struct target_eabi_flock64 *target_efl;
3877
#endif
3878

    
3879
        switch(arg2) {
3880
        case F_GETLK64:
3881
            ret = get_errno(fcntl(arg1, arg2, &fl));
3882
            if (ret == 0) {
3883
#ifdef TARGET_ARM
3884
                if (((CPUARMState *)cpu_env)->eabi) {
3885
                    lock_user_struct(target_efl, arg3, 0);
3886
                    target_efl->l_type = tswap16(fl.l_type);
3887
                    target_efl->l_whence = tswap16(fl.l_whence);
3888
                    target_efl->l_start = tswap64(fl.l_start);
3889
                    target_efl->l_len = tswap64(fl.l_len);
3890
                    target_efl->l_pid = tswapl(fl.l_pid);
3891
                    unlock_user_struct(target_efl, arg3, 1);
3892
                } else
3893
#endif
3894
                {
3895
                    lock_user_struct(target_fl, arg3, 0);
3896
                    target_fl->l_type = tswap16(fl.l_type);
3897
                    target_fl->l_whence = tswap16(fl.l_whence);
3898
                    target_fl->l_start = tswap64(fl.l_start);
3899
                    target_fl->l_len = tswap64(fl.l_len);
3900
                    target_fl->l_pid = tswapl(fl.l_pid);
3901
                    unlock_user_struct(target_fl, arg3, 1);
3902
                }
3903
            }
3904
            break;
3905

    
3906
        case F_SETLK64:
3907
        case F_SETLKW64:
3908
#ifdef TARGET_ARM
3909
            if (((CPUARMState *)cpu_env)->eabi) {
3910
                lock_user_struct(target_efl, arg3, 1);
3911
                fl.l_type = tswap16(target_efl->l_type);
3912
                fl.l_whence = tswap16(target_efl->l_whence);
3913
                fl.l_start = tswap64(target_efl->l_start);
3914
                fl.l_len = tswap64(target_efl->l_len);
3915
                fl.l_pid = tswapl(target_efl->l_pid);
3916
                unlock_user_struct(target_efl, arg3, 0);
3917
            } else
3918
#endif
3919
            {
3920
                lock_user_struct(target_fl, arg3, 1);
3921
                fl.l_type = tswap16(target_fl->l_type);
3922
                fl.l_whence = tswap16(target_fl->l_whence);
3923
                fl.l_start = tswap64(target_fl->l_start);
3924
                fl.l_len = tswap64(target_fl->l_len);
3925
                fl.l_pid = tswapl(target_fl->l_pid);
3926
                unlock_user_struct(target_fl, arg3, 0);
3927
            }
3928
            ret = get_errno(fcntl(arg1, arg2, &fl));
3929
            break;
3930
        default:
3931
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
3932
            break;
3933
        }
3934
        break;
3935
    }
3936
#endif
3937
#ifdef TARGET_NR_cacheflush
3938
    case TARGET_NR_cacheflush:
3939
        /* self-modifying code is handled automatically, so nothing needed */
3940
        ret = 0;
3941
        break;
3942
#endif
3943
#ifdef TARGET_NR_security
3944
    case TARGET_NR_security:
3945
        goto unimplemented;
3946
#endif
3947
#ifdef TARGET_NR_getpagesize
3948
    case TARGET_NR_getpagesize:
3949
        ret = TARGET_PAGE_SIZE;
3950
        break;
3951
#endif
3952
    case TARGET_NR_gettid:
3953
        ret = get_errno(gettid());
3954
        break;
3955
    case TARGET_NR_readahead:
3956
        goto unimplemented;
3957
#ifdef TARGET_NR_setxattr
3958
    case TARGET_NR_setxattr:
3959
    case TARGET_NR_lsetxattr:
3960
    case TARGET_NR_fsetxattr:
3961
    case TARGET_NR_getxattr:
3962
    case TARGET_NR_lgetxattr:
3963
    case TARGET_NR_fgetxattr:
3964
    case TARGET_NR_listxattr:
3965
    case TARGET_NR_llistxattr:
3966
    case TARGET_NR_flistxattr:
3967
    case TARGET_NR_removexattr:
3968
    case TARGET_NR_lremovexattr:
3969
    case TARGET_NR_fremovexattr:
3970
        goto unimplemented_nowarn;
3971
#endif
3972
#ifdef TARGET_NR_set_thread_area
3973
    case TARGET_NR_set_thread_area:
3974
#ifdef TARGET_MIPS
3975
      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
3976
      ret = 0;
3977
      break;
3978
#else
3979
      goto unimplemented_nowarn;
3980
#endif
3981
#endif
3982
#ifdef TARGET_NR_get_thread_area
3983
    case TARGET_NR_get_thread_area:
3984
        goto unimplemented_nowarn;
3985
#endif
3986
#ifdef TARGET_NR_getdomainname
3987
    case TARGET_NR_getdomainname:
3988
        goto unimplemented_nowarn;
3989
#endif
3990

    
3991
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
3992
    case TARGET_NR_set_tid_address:
3993
      ret = get_errno(set_tid_address((int *) arg1));
3994
      break;
3995
#endif
3996

    
3997
    default:
3998
    unimplemented:
3999
        gemu_log("qemu: Unsupported syscall: %d\n", num);
4000
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname)
4001
    unimplemented_nowarn:
4002
#endif
4003
        ret = -ENOSYS;
4004
        break;
4005
    }
4006
 fail:
4007
#ifdef DEBUG
4008
    gemu_log(" = %ld\n", ret);
4009
#endif
4010
    return ret;
4011
}
4012