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1
/*
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 *  Linux syscalls
3
 * 
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
6
 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
9
 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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#include <stdlib.h>
21
#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <sys/stat.h>
34
#include <sys/mount.h>
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#include <sys/resource.h>
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#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
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#include <sched.h>
40
#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/times.h>
44
//#include <sys/user.h>
45
#include <netinet/tcp.h>
46

    
47
#define termios host_termios
48
#define winsize host_winsize
49
#define termio host_termio
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#define sgttyb host_sgttyb /* same as target */
51
#define tchars host_tchars /* same as target */
52
#define ltchars host_ltchars /* same as target */
53

    
54
#include <linux/termios.h>
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#include <linux/unistd.h>
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#include <linux/utsname.h>
57
#include <linux/cdrom.h>
58
#include <linux/hdreg.h>
59
#include <linux/soundcard.h>
60
#include <linux/dirent.h>
61
#include <linux/kd.h>
62

    
63
#include "qemu.h"
64

    
65
//#define DEBUG
66

    
67
//#include <linux/msdos_fs.h>
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#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
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#define        VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
70

    
71

    
72
#if defined(__powerpc__)
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#undef __syscall_nr
74
#undef __sc_loadargs_0
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#undef __sc_loadargs_1
76
#undef __sc_loadargs_2
77
#undef __sc_loadargs_3
78
#undef __sc_loadargs_4
79
#undef __sc_loadargs_5
80
#undef __sc_asm_input_0
81
#undef __sc_asm_input_1
82
#undef __sc_asm_input_2
83
#undef __sc_asm_input_3
84
#undef __sc_asm_input_4
85
#undef __sc_asm_input_5
86
#undef _syscall0
87
#undef _syscall1
88
#undef _syscall2
89
#undef _syscall3
90
#undef _syscall4
91
#undef _syscall5
92

    
93
/* need to redefine syscalls as Linux kernel defines are incorrect for
94
   the clobber list */
95
/* On powerpc a system call basically clobbers the same registers like a
96
 * function call, with the exception of LR (which is needed for the
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 * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
98
 * an error return status).
99
 */
100

    
101
#define __syscall_nr(nr, type, name, args...)                                \
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        unsigned long __sc_ret, __sc_err;                                \
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        {                                                                \
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                register unsigned long __sc_0  __asm__ ("r0");                \
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                register unsigned long __sc_3  __asm__ ("r3");                \
106
                register unsigned long __sc_4  __asm__ ("r4");                \
107
                register unsigned long __sc_5  __asm__ ("r5");                \
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                register unsigned long __sc_6  __asm__ ("r6");                \
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                register unsigned long __sc_7  __asm__ ("r7");                \
110
                                                                        \
111
                __sc_loadargs_##nr(name, args);                                \
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                __asm__ __volatile__                                        \
113
                        ("sc           \n\t"                                \
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                         "mfcr %0      "                                \
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                        : "=&r" (__sc_0),                                \
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                          "=&r" (__sc_3),  "=&r" (__sc_4),                \
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                          "=&r" (__sc_5),  "=&r" (__sc_6),                \
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                          "=&r" (__sc_7)                                \
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                        : __sc_asm_input_##nr                                \
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                        : "cr0", "ctr", "memory",                        \
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                          "r8", "r9", "r10","r11", "r12");                \
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                __sc_ret = __sc_3;                                        \
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                __sc_err = __sc_0;                                        \
124
        }                                                                \
125
        if (__sc_err & 0x10000000)                                        \
126
        {                                                                \
127
                errno = __sc_ret;                                        \
128
                __sc_ret = -1;                                                \
129
        }                                                                \
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        return (type) __sc_ret
131

    
132
#define __sc_loadargs_0(name, dummy...)                                        \
133
        __sc_0 = __NR_##name
134
#define __sc_loadargs_1(name, arg1)                                        \
135
        __sc_loadargs_0(name);                                                \
136
        __sc_3 = (unsigned long) (arg1)
137
#define __sc_loadargs_2(name, arg1, arg2)                                \
138
        __sc_loadargs_1(name, arg1);                                        \
139
        __sc_4 = (unsigned long) (arg2)
140
#define __sc_loadargs_3(name, arg1, arg2, arg3)                                \
141
        __sc_loadargs_2(name, arg1, arg2);                                \
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        __sc_5 = (unsigned long) (arg3)
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#define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)                        \
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        __sc_loadargs_3(name, arg1, arg2, arg3);                        \
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        __sc_6 = (unsigned long) (arg4)
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#define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)                \
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        __sc_loadargs_4(name, arg1, arg2, arg3, arg4);                        \
148
        __sc_7 = (unsigned long) (arg5)
149

    
150
#define __sc_asm_input_0 "0" (__sc_0)
151
#define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
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#define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
153
#define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
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#define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
155
#define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
156

    
157
#define _syscall0(type,name)                                                \
158
type name(void)                                                                \
159
{                                                                        \
160
        __syscall_nr(0, type, name);                                        \
161
}
162

    
163
#define _syscall1(type,name,type1,arg1)                                        \
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type name(type1 arg1)                                                        \
165
{                                                                        \
166
        __syscall_nr(1, type, name, arg1);                                \
167
}
168

    
169
#define _syscall2(type,name,type1,arg1,type2,arg2)                        \
170
type name(type1 arg1, type2 arg2)                                        \
171
{                                                                        \
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        __syscall_nr(2, type, name, arg1, arg2);                        \
173
}
174

    
175
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)                \
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type name(type1 arg1, type2 arg2, type3 arg3)                                \
177
{                                                                        \
178
        __syscall_nr(3, type, name, arg1, arg2, arg3);                        \
179
}
180

    
181
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
182
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)                \
183
{                                                                        \
184
        __syscall_nr(4, type, name, arg1, arg2, arg3, arg4);                \
185
}
186

    
187
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
188
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)        \
189
{                                                                        \
190
        __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5);        \
191
}
192
#endif
193

    
194
#define __NR_sys_uname __NR_uname
195
#define __NR_sys_getcwd1 __NR_getcwd
196
#define __NR_sys_statfs __NR_statfs
197
#define __NR_sys_fstatfs __NR_fstatfs
198
#define __NR_sys_getdents __NR_getdents
199
#define __NR_sys_getdents64 __NR_getdents64
200
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
201

    
202
#if defined(__alpha__) || defined (__ia64__)
203
#define __NR__llseek __NR_lseek
204
#endif
205

    
206
#ifdef __NR_gettid
207
_syscall0(int, gettid)
208
#else
209
static int gettid(void) {
210
    return -ENOSYS;
211
}
212
#endif
213
_syscall1(int,sys_uname,struct new_utsname *,buf)
214
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
215
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
216
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
217
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
218
          loff_t *, res, uint, wh);
219
_syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
220
_syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
221
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
222
#ifdef __NR_exit_group
223
_syscall1(int,exit_group,int,error_code)
224
#endif
225

    
226
extern int personality(int);
227
extern int flock(int, int);
228
extern int setfsuid(int);
229
extern int setfsgid(int);
230
extern int setresuid(uid_t, uid_t, uid_t);
231
extern int getresuid(uid_t *, uid_t *, uid_t *);
232
extern int setresgid(gid_t, gid_t, gid_t);
233
extern int getresgid(gid_t *, gid_t *, gid_t *);
234
extern int setgroups(int, gid_t *);
235

    
236
static inline long get_errno(long ret)
237
{
238
    if (ret == -1)
239
        return -errno;
240
    else
241
        return ret;
242
}
243

    
244
static inline int is_error(long ret)
245
{
246
    return (unsigned long)ret >= (unsigned long)(-4096);
247
}
248

    
249
static char *target_brk;
250
static char *target_original_brk;
251

    
252
void target_set_brk(char *new_brk)
253
{
254
    target_brk = new_brk;
255
    target_original_brk = new_brk;
256
}
257

    
258
static long do_brk(char *new_brk)
259
{
260
    char *brk_page;
261
    long mapped_addr;
262
    int        new_alloc_size;
263

    
264
    if (!new_brk)
265
        return (long)target_brk;
266
    if (new_brk < target_original_brk)
267
        return -ENOMEM;
268
    
269
    brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
270

    
271
    /* If the new brk is less than this, set it and we're done... */
272
    if (new_brk < brk_page) {
273
        target_brk = new_brk;
274
            return (long)target_brk;
275
    }
276

    
277
    /* We need to allocate more memory after the brk... */
278
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
279
    mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size, 
280
                                        PROT_READ|PROT_WRITE,
281
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
282
    if (is_error(mapped_addr)) {
283
        return mapped_addr;
284
    } else {
285
        target_brk = new_brk;
286
            return (long)target_brk;
287
    }
288
}
289

    
290
static inline fd_set *target_to_host_fds(fd_set *fds, 
291
                                         target_long *target_fds, int n)
292
{
293
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
294
    return (fd_set *)target_fds;
295
#else
296
    int i, b;
297
    if (target_fds) {
298
        FD_ZERO(fds);
299
        for(i = 0;i < n; i++) {
300
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
301
                 (i & (TARGET_LONG_BITS - 1))) & 1;
302
            if (b)
303
                FD_SET(i, fds);
304
        }
305
        return fds;
306
    } else {
307
        return NULL;
308
    }
309
#endif
310
}
311

    
312
static inline void host_to_target_fds(target_long *target_fds, 
313
                                      fd_set *fds, int n)
314
{
315
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
316
    /* nothing to do */
317
#else
318
    int i, nw, j, k;
319
    target_long v;
320

    
321
    if (target_fds) {
322
        nw = n / TARGET_LONG_BITS;
323
        k = 0;
324
        for(i = 0;i < nw; i++) {
325
            v = 0;
326
            for(j = 0; j < TARGET_LONG_BITS; j++) {
327
                v |= ((FD_ISSET(k, fds) != 0) << j);
328
                k++;
329
            }
330
            target_fds[i] = tswapl(v);
331
        }
332
    }
333
#endif
334
}
335

    
336
#if defined(__alpha__)
337
#define HOST_HZ 1024
338
#else
339
#define HOST_HZ 100
340
#endif
341

    
342
static inline long host_to_target_clock_t(long ticks)
343
{
344
#if HOST_HZ == TARGET_HZ
345
    return ticks;
346
#else
347
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
348
#endif
349
}
350

    
351
static inline void host_to_target_rusage(struct target_rusage *target_rusage, 
352
                                         const struct rusage *rusage)
353
{
354
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
355
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
356
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
357
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
358
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
359
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
360
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
361
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
362
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
363
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
364
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
365
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
366
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
367
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
368
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
369
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
370
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
371
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
372
}
373

    
374
static inline void target_to_host_timeval(struct timeval *tv, 
375
                                          const struct target_timeval *target_tv)
376
{
377
    tv->tv_sec = tswapl(target_tv->tv_sec);
378
    tv->tv_usec = tswapl(target_tv->tv_usec);
379
}
380

    
381
static inline void host_to_target_timeval(struct target_timeval *target_tv, 
382
                                          const struct timeval *tv)
383
{
384
    target_tv->tv_sec = tswapl(tv->tv_sec);
385
    target_tv->tv_usec = tswapl(tv->tv_usec);
386
}
387

    
388

    
389
static long do_select(long n, 
390
                      target_long *target_rfds, target_long *target_wfds, 
391
                      target_long *target_efds, struct target_timeval *target_tv)
392
{
393
    fd_set rfds, wfds, efds;
394
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
395
    struct timeval tv, *tv_ptr;
396
    long ret;
397

    
398
    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
399
    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
400
    efds_ptr = target_to_host_fds(&efds, target_efds, n);
401
            
402
    if (target_tv) {
403
        target_to_host_timeval(&tv, target_tv);
404
        tv_ptr = &tv;
405
    } else {
406
        tv_ptr = NULL;
407
    }
408
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
409
    if (!is_error(ret)) {
410
        host_to_target_fds(target_rfds, rfds_ptr, n);
411
        host_to_target_fds(target_wfds, wfds_ptr, n);
412
        host_to_target_fds(target_efds, efds_ptr, n);
413

    
414
        if (target_tv) {
415
            host_to_target_timeval(target_tv, &tv);
416
        }
417
    }
418
    return ret;
419
}
420

    
421
static inline void target_to_host_sockaddr(struct sockaddr *addr,
422
                                           struct target_sockaddr *target_addr,
423
                                           socklen_t len)
424
{
425
    memcpy(addr, target_addr, len);
426
    addr->sa_family = tswap16(target_addr->sa_family);
427
}
428

    
429
static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
430
                                           struct sockaddr *addr,
431
                                           socklen_t len)
432
{
433
    memcpy(target_addr, addr, len);
434
    target_addr->sa_family = tswap16(addr->sa_family);
435
}
436

    
437
static inline void target_to_host_cmsg(struct msghdr *msgh,
438
                                       struct target_msghdr *target_msgh)
439
{
440
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
441
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
442
    socklen_t space = 0;
443

    
444
    while (cmsg && target_cmsg) {
445
        void *data = CMSG_DATA(cmsg);
446
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
447

    
448
        int len = tswapl(target_cmsg->cmsg_len) 
449
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
450

    
451
        space += CMSG_SPACE(len);
452
        if (space > msgh->msg_controllen) {
453
            space -= CMSG_SPACE(len);
454
            gemu_log("Host cmsg overflow");
455
            break;
456
        }
457

    
458
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
459
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
460
        cmsg->cmsg_len = CMSG_LEN(len);
461

    
462
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
463
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
464
            memcpy(data, target_data, len);
465
        } else {
466
            int *fd = (int *)data;
467
            int *target_fd = (int *)target_data;
468
            int i, numfds = len / sizeof(int);
469

    
470
            for (i = 0; i < numfds; i++)
471
                fd[i] = tswap32(target_fd[i]);
472
        }
473

    
474
        cmsg = CMSG_NXTHDR(msgh, cmsg);
475
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
476
    }
477

    
478
    msgh->msg_controllen = space;
479
}
480

    
481
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
482
                                       struct msghdr *msgh)
483
{
484
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
485
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
486
    socklen_t space = 0;
487

    
488
    while (cmsg && target_cmsg) {
489
        void *data = CMSG_DATA(cmsg);
490
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
491

    
492
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
493

    
494
        space += TARGET_CMSG_SPACE(len);
495
        if (space > tswapl(target_msgh->msg_controllen)) {
496
            space -= TARGET_CMSG_SPACE(len);
497
            gemu_log("Target cmsg overflow");
498
            break;
499
        }
500

    
501
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
502
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
503
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
504

    
505
        if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
506
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
507
            memcpy(target_data, data, len);
508
        } else {
509
            int *fd = (int *)data;
510
            int *target_fd = (int *)target_data;
511
            int i, numfds = len / sizeof(int);
512

    
513
            for (i = 0; i < numfds; i++)
514
                target_fd[i] = tswap32(fd[i]);
515
        }
516

    
517
        cmsg = CMSG_NXTHDR(msgh, cmsg);
518
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
519
    }
520

    
521
    msgh->msg_controllen = tswapl(space);
522
}
523

    
524
static long do_setsockopt(int sockfd, int level, int optname, 
525
                          void *optval, socklen_t optlen)
526
{
527
    if (level == SOL_TCP) {
528
        /* TCP options all take an 'int' value.  */
529
        int val;
530

    
531
        if (optlen < sizeof(uint32_t))
532
            return -EINVAL;
533

    
534
        val = tswap32(*(uint32_t *)optval);
535
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
536
    }
537

    
538
    else if (level != SOL_SOCKET) {
539
        gemu_log("Unsupported setsockopt level: %d\n", level);
540
        return -ENOSYS;
541
    }
542

    
543
    switch (optname) {
544
    /* Options with 'int' argument.  */
545
    case SO_DEBUG:
546
    case SO_REUSEADDR:
547
    case SO_TYPE:
548
    case SO_ERROR:
549
    case SO_DONTROUTE:
550
    case SO_BROADCAST:
551
    case SO_SNDBUF:
552
    case SO_RCVBUF:
553
    case SO_KEEPALIVE:
554
    case SO_OOBINLINE:
555
    case SO_NO_CHECK:
556
    case SO_PRIORITY:
557
    case SO_BSDCOMPAT:
558
    case SO_PASSCRED:
559
    case SO_TIMESTAMP:
560
    case SO_RCVLOWAT:
561
    case SO_RCVTIMEO:
562
    case SO_SNDTIMEO:
563
    {
564
        int val;
565
        if (optlen < sizeof(uint32_t))
566
            return -EINVAL;
567
        val = tswap32(*(uint32_t *)optval);
568
        return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
569
    }
570

    
571
    default:
572
        gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname);
573
        return -ENOSYS;
574
    }
575
}
576

    
577
static long do_getsockopt(int sockfd, int level, int optname, 
578
                          void *optval, socklen_t *optlen)
579
{
580
    gemu_log("getsockopt not yet supported\n");
581
    return -ENOSYS;
582
}
583

    
584
static long do_socketcall(int num, int32_t *vptr)
585
{
586
    long ret;
587

    
588
    switch(num) {
589
    case SOCKOP_socket:
590
        {
591
            int domain = tswap32(vptr[0]);
592
            int type = tswap32(vptr[1]);
593
            int protocol = tswap32(vptr[2]);
594

    
595
            ret = get_errno(socket(domain, type, protocol));
596
        }
597
        break;
598
    case SOCKOP_bind:
599
        {
600
            int sockfd = tswap32(vptr[0]);
601
            void *target_addr = (void *)tswap32(vptr[1]);
602
            socklen_t addrlen = tswap32(vptr[2]);
603
            void *addr = alloca(addrlen);
604

    
605
            target_to_host_sockaddr(addr, target_addr, addrlen);
606
            ret = get_errno(bind(sockfd, addr, addrlen));
607
        }
608
        break;
609
    case SOCKOP_connect:
610
        {
611
            int sockfd = tswap32(vptr[0]);
612
            void *target_addr = (void *)tswap32(vptr[1]);
613
            socklen_t addrlen = tswap32(vptr[2]);
614
            void *addr = alloca(addrlen);
615

    
616
            target_to_host_sockaddr(addr, target_addr, addrlen);
617
            ret = get_errno(connect(sockfd, addr, addrlen));
618
        }
619
        break;
620
    case SOCKOP_listen:
621
        {
622
            int sockfd = tswap32(vptr[0]);
623
            int backlog = tswap32(vptr[1]);
624

    
625
            ret = get_errno(listen(sockfd, backlog));
626
        }
627
        break;
628
    case SOCKOP_accept:
629
        {
630
            int sockfd = tswap32(vptr[0]);
631
            void *target_addr = (void *)tswap32(vptr[1]);
632
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
633
            socklen_t addrlen = tswap32(*target_addrlen);
634
            void *addr = alloca(addrlen);
635

    
636
            ret = get_errno(accept(sockfd, addr, &addrlen));
637
            if (!is_error(ret)) {
638
                host_to_target_sockaddr(target_addr, addr, addrlen);
639
                *target_addrlen = tswap32(addrlen);
640
            }
641
        }
642
        break;
643
    case SOCKOP_getsockname:
644
        {
645
            int sockfd = tswap32(vptr[0]);
646
            void *target_addr = (void *)tswap32(vptr[1]);
647
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
648
            socklen_t addrlen = tswap32(*target_addrlen);
649
            void *addr = alloca(addrlen);
650

    
651
            ret = get_errno(getsockname(sockfd, addr, &addrlen));
652
            if (!is_error(ret)) {
653
                host_to_target_sockaddr(target_addr, addr, addrlen);
654
                *target_addrlen = tswap32(addrlen);
655
            }
656
        }
657
        break;
658
    case SOCKOP_getpeername:
659
        {
660
            int sockfd = tswap32(vptr[0]);
661
            void *target_addr = (void *)tswap32(vptr[1]);
662
            uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
663
            socklen_t addrlen = tswap32(*target_addrlen);
664
            void *addr = alloca(addrlen);
665

    
666
            ret = get_errno(getpeername(sockfd, addr, &addrlen));
667
            if (!is_error(ret)) {
668
                host_to_target_sockaddr(target_addr, addr, addrlen);
669
                *target_addrlen = tswap32(addrlen);
670
            }
671
        }
672
        break;
673
    case SOCKOP_socketpair:
674
        {
675
            int domain = tswap32(vptr[0]);
676
            int type = tswap32(vptr[1]);
677
            int protocol = tswap32(vptr[2]);
678
            int32_t *target_tab = (void *)tswap32(vptr[3]);
679
            int tab[2];
680

    
681
            ret = get_errno(socketpair(domain, type, protocol, tab));
682
            if (!is_error(ret)) {
683
                target_tab[0] = tswap32(tab[0]);
684
                target_tab[1] = tswap32(tab[1]);
685
            }
686
        }
687
        break;
688
    case SOCKOP_send:
689
        {
690
            int sockfd = tswap32(vptr[0]);
691
            void *msg = (void *)tswap32(vptr[1]);
692
            size_t len = tswap32(vptr[2]);
693
            int flags = tswap32(vptr[3]);
694

    
695
            ret = get_errno(send(sockfd, msg, len, flags));
696
        }
697
        break;
698
    case SOCKOP_recv:
699
        {
700
            int sockfd = tswap32(vptr[0]);
701
            void *msg = (void *)tswap32(vptr[1]);
702
            size_t len = tswap32(vptr[2]);
703
            int flags = tswap32(vptr[3]);
704

    
705
            ret = get_errno(recv(sockfd, msg, len, flags));
706
        }
707
        break;
708
    case SOCKOP_sendto:
709
        {
710
            int sockfd = tswap32(vptr[0]);
711
            void *msg = (void *)tswap32(vptr[1]);
712
            size_t len = tswap32(vptr[2]);
713
            int flags = tswap32(vptr[3]);
714
            void *target_addr = (void *)tswap32(vptr[4]);
715
            socklen_t addrlen = tswap32(vptr[5]);
716
            void *addr = alloca(addrlen);
717

    
718
            target_to_host_sockaddr(addr, target_addr, addrlen);
719
            ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
720
        }
721
        break;
722
    case SOCKOP_recvfrom:
723
        {
724
            int sockfd = tswap32(vptr[0]);
725
            void *msg = (void *)tswap32(vptr[1]);
726
            size_t len = tswap32(vptr[2]);
727
            int flags = tswap32(vptr[3]);
728
            void *target_addr = (void *)tswap32(vptr[4]);
729
            uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
730
            socklen_t addrlen = tswap32(*target_addrlen);
731
            void *addr = alloca(addrlen);
732

    
733
            ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
734
            if (!is_error(ret)) {
735
                host_to_target_sockaddr(target_addr, addr, addrlen);
736
                *target_addrlen = tswap32(addrlen);
737
            }
738
        }
739
        break;
740
    case SOCKOP_shutdown:
741
        {
742
            int sockfd = tswap32(vptr[0]);
743
            int how = tswap32(vptr[1]);
744

    
745
            ret = get_errno(shutdown(sockfd, how));
746
        }
747
        break;
748
    case SOCKOP_sendmsg:
749
    case SOCKOP_recvmsg:
750
        {
751
            int fd;
752
            struct target_msghdr *msgp;
753
            struct msghdr msg;
754
            int flags, count, i;
755
            struct iovec *vec;
756
            struct target_iovec *target_vec;
757

    
758
            msgp = (void *)tswap32(vptr[1]);
759
            msg.msg_name = (void *)tswapl(msgp->msg_name);
760
            msg.msg_namelen = tswapl(msgp->msg_namelen);
761
            msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
762
            msg.msg_control = alloca(msg.msg_controllen);
763
            msg.msg_flags = tswap32(msgp->msg_flags);
764

    
765
            count = tswapl(msgp->msg_iovlen);
766
            vec = alloca(count * sizeof(struct iovec));
767
            target_vec = (void *)tswapl(msgp->msg_iov);
768
            for(i = 0;i < count; i++) {
769
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
770
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
771
            }
772
            msg.msg_iovlen = count;
773
            msg.msg_iov = vec;
774

    
775
            fd = tswap32(vptr[0]);
776
            flags = tswap32(vptr[2]);
777
            if (num == SOCKOP_sendmsg) {
778
                target_to_host_cmsg(&msg, msgp);
779
                ret = get_errno(sendmsg(fd, &msg, flags));
780
            } else {
781
                ret = get_errno(recvmsg(fd, &msg, flags));
782
                if (!is_error(ret))
783
                  host_to_target_cmsg(msgp, &msg);
784
            }
785
        }
786
        break;
787
    case SOCKOP_setsockopt:
788
        {
789
            int sockfd = tswap32(vptr[0]);
790
            int level = tswap32(vptr[1]);
791
            int optname = tswap32(vptr[2]);
792
            void *optval = (void *)tswap32(vptr[3]);
793
            socklen_t optlen = tswap32(vptr[4]);
794

    
795
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
796
        }
797
        break;
798
    case SOCKOP_getsockopt:
799
        {
800
            int sockfd = tswap32(vptr[0]);
801
            int level = tswap32(vptr[1]);
802
            int optname = tswap32(vptr[2]);
803
            void *optval = (void *)tswap32(vptr[3]);
804
            uint32_t *target_len = (void *)tswap32(vptr[4]);
805
            socklen_t optlen = tswap32(*target_len);
806

    
807
            ret = do_getsockopt(sockfd, level, optname, optval, &optlen);
808
            if (!is_error(ret))
809
                *target_len = tswap32(optlen);
810
        }
811
        break;
812
    default:
813
        gemu_log("Unsupported socketcall: %d\n", num);
814
        ret = -ENOSYS;
815
        break;
816
    }
817
    return ret;
818
}
819

    
820
/* kernel structure types definitions */
821
#define IFNAMSIZ        16
822

    
823
#define STRUCT(name, list...) STRUCT_ ## name,
824
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
825
enum {
826
#include "syscall_types.h"
827
};
828
#undef STRUCT
829
#undef STRUCT_SPECIAL
830

    
831
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
832
#define STRUCT_SPECIAL(name)
833
#include "syscall_types.h"
834
#undef STRUCT
835
#undef STRUCT_SPECIAL
836

    
837
typedef struct IOCTLEntry {
838
    unsigned int target_cmd;
839
    unsigned int host_cmd;
840
    const char *name;
841
    int access;
842
    const argtype arg_type[5];
843
} IOCTLEntry;
844

    
845
#define IOC_R 0x0001
846
#define IOC_W 0x0002
847
#define IOC_RW (IOC_R | IOC_W)
848

    
849
#define MAX_STRUCT_SIZE 4096
850

    
851
IOCTLEntry ioctl_entries[] = {
852
#define IOCTL(cmd, access, types...) \
853
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
854
#include "ioctls.h"
855
    { 0, 0, },
856
};
857

    
858
static long do_ioctl(long fd, long cmd, long arg)
859
{
860
    const IOCTLEntry *ie;
861
    const argtype *arg_type;
862
    long ret;
863
    uint8_t buf_temp[MAX_STRUCT_SIZE];
864

    
865
    ie = ioctl_entries;
866
    for(;;) {
867
        if (ie->target_cmd == 0) {
868
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
869
            return -ENOSYS;
870
        }
871
        if (ie->target_cmd == cmd)
872
            break;
873
        ie++;
874
    }
875
    arg_type = ie->arg_type;
876
#if defined(DEBUG)
877
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
878
#endif
879
    switch(arg_type[0]) {
880
    case TYPE_NULL:
881
        /* no argument */
882
        ret = get_errno(ioctl(fd, ie->host_cmd));
883
        break;
884
    case TYPE_PTRVOID:
885
    case TYPE_INT:
886
        /* int argment */
887
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
888
        break;
889
    case TYPE_PTR:
890
        arg_type++;
891
        switch(ie->access) {
892
        case IOC_R:
893
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
894
            if (!is_error(ret)) {
895
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
896
            }
897
            break;
898
        case IOC_W:
899
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
900
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
901
            break;
902
        default:
903
        case IOC_RW:
904
            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
905
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
906
            if (!is_error(ret)) {
907
                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
908
            }
909
            break;
910
        }
911
        break;
912
    default:
913
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
914
        ret = -ENOSYS;
915
        break;
916
    }
917
    return ret;
918
}
919

    
920
bitmask_transtbl iflag_tbl[] = {
921
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
922
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
923
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
924
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
925
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
926
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
927
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
928
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
929
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
930
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
931
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
932
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
933
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
934
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
935
        { 0, 0, 0, 0 }
936
};
937

    
938
bitmask_transtbl oflag_tbl[] = {
939
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
940
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
941
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
942
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
943
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
944
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
945
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
946
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
947
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
948
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
949
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
950
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
951
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
952
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
953
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
954
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
955
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
956
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
957
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
958
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
959
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
960
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
961
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
962
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
963
        { 0, 0, 0, 0 }
964
};
965

    
966
bitmask_transtbl cflag_tbl[] = {
967
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
968
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
969
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
970
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
971
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
972
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
973
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
974
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
975
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
976
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
977
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
978
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
979
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
980
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
981
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
982
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
983
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
984
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
985
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
986
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
987
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
988
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
989
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
990
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
991
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
992
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
993
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
994
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
995
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
996
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
997
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
998
        { 0, 0, 0, 0 }
999
};
1000

    
1001
bitmask_transtbl lflag_tbl[] = {
1002
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1003
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1004
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1005
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1006
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1007
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1008
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1009
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1010
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1011
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1012
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1013
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1014
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1015
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1016
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1017
        { 0, 0, 0, 0 }
1018
};
1019

    
1020
static void target_to_host_termios (void *dst, const void *src)
1021
{
1022
    struct host_termios *host = dst;
1023
    const struct target_termios *target = src;
1024
    
1025
    host->c_iflag = 
1026
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1027
    host->c_oflag = 
1028
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1029
    host->c_cflag = 
1030
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1031
    host->c_lflag = 
1032
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1033
    host->c_line = target->c_line;
1034
    
1035
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
1036
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
1037
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
1038
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
1039
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
1040
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
1041
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
1042
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
1043
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
1044
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
1045
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
1046
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
1047
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
1048
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
1049
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
1050
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
1051
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
1052
}
1053
  
1054
static void host_to_target_termios (void *dst, const void *src)
1055
{
1056
    struct target_termios *target = dst;
1057
    const struct host_termios *host = src;
1058

    
1059
    target->c_iflag = 
1060
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1061
    target->c_oflag = 
1062
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1063
    target->c_cflag = 
1064
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1065
    target->c_lflag = 
1066
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1067
    target->c_line = host->c_line;
1068
  
1069
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1070
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1071
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1072
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1073
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1074
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1075
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1076
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1077
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1078
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1079
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1080
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1081
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1082
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1083
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1084
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1085
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1086
}
1087

    
1088
StructEntry struct_termios_def = {
1089
    .convert = { host_to_target_termios, target_to_host_termios },
1090
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1091
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1092
};
1093

    
1094
static bitmask_transtbl mmap_flags_tbl[] = {
1095
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1096
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1097
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1098
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1099
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1100
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1101
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1102
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1103
        { 0, 0, 0, 0 }
1104
};
1105

    
1106
#if defined(TARGET_I386)
1107

    
1108
/* NOTE: there is really one LDT for all the threads */
1109
uint8_t *ldt_table;
1110

    
1111
static int read_ldt(void *ptr, unsigned long bytecount)
1112
{
1113
    int size;
1114

    
1115
    if (!ldt_table)
1116
        return 0;
1117
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1118
    if (size > bytecount)
1119
        size = bytecount;
1120
    memcpy(ptr, ldt_table, size);
1121
    return size;
1122
}
1123

    
1124
/* XXX: add locking support */
1125
static int write_ldt(CPUX86State *env, 
1126
                     void *ptr, unsigned long bytecount, int oldmode)
1127
{
1128
    struct target_modify_ldt_ldt_s ldt_info;
1129
    int seg_32bit, contents, read_exec_only, limit_in_pages;
1130
    int seg_not_present, useable;
1131
    uint32_t *lp, entry_1, entry_2;
1132

    
1133
    if (bytecount != sizeof(ldt_info))
1134
        return -EINVAL;
1135
    memcpy(&ldt_info, ptr, sizeof(ldt_info));
1136
    tswap32s(&ldt_info.entry_number);
1137
    tswapls((long *)&ldt_info.base_addr);
1138
    tswap32s(&ldt_info.limit);
1139
    tswap32s(&ldt_info.flags);
1140
    
1141
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1142
        return -EINVAL;
1143
    seg_32bit = ldt_info.flags & 1;
1144
    contents = (ldt_info.flags >> 1) & 3;
1145
    read_exec_only = (ldt_info.flags >> 3) & 1;
1146
    limit_in_pages = (ldt_info.flags >> 4) & 1;
1147
    seg_not_present = (ldt_info.flags >> 5) & 1;
1148
    useable = (ldt_info.flags >> 6) & 1;
1149

    
1150
    if (contents == 3) {
1151
        if (oldmode)
1152
            return -EINVAL;
1153
        if (seg_not_present == 0)
1154
            return -EINVAL;
1155
    }
1156
    /* allocate the LDT */
1157
    if (!ldt_table) {
1158
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1159
        if (!ldt_table)
1160
            return -ENOMEM;
1161
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1162
        env->ldt.base = ldt_table;
1163
        env->ldt.limit = 0xffff;
1164
    }
1165

    
1166
    /* NOTE: same code as Linux kernel */
1167
    /* Allow LDTs to be cleared by the user. */
1168
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1169
        if (oldmode ||
1170
            (contents == 0                &&
1171
             read_exec_only == 1        &&
1172
             seg_32bit == 0                &&
1173
             limit_in_pages == 0        &&
1174
             seg_not_present == 1        &&
1175
             useable == 0 )) {
1176
            entry_1 = 0;
1177
            entry_2 = 0;
1178
            goto install;
1179
        }
1180
    }
1181
    
1182
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1183
        (ldt_info.limit & 0x0ffff);
1184
    entry_2 = (ldt_info.base_addr & 0xff000000) |
1185
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1186
        (ldt_info.limit & 0xf0000) |
1187
        ((read_exec_only ^ 1) << 9) |
1188
        (contents << 10) |
1189
        ((seg_not_present ^ 1) << 15) |
1190
        (seg_32bit << 22) |
1191
        (limit_in_pages << 23) |
1192
        0x7000;
1193
    if (!oldmode)
1194
        entry_2 |= (useable << 20);
1195

    
1196
    /* Install the new entry ...  */
1197
install:
1198
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1199
    lp[0] = tswap32(entry_1);
1200
    lp[1] = tswap32(entry_2);
1201
    return 0;
1202
}
1203

    
1204
/* specific and weird i386 syscalls */
1205
int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1206
{
1207
    int ret = -ENOSYS;
1208
    
1209
    switch (func) {
1210
    case 0:
1211
        ret = read_ldt(ptr, bytecount);
1212
        break;
1213
    case 1:
1214
        ret = write_ldt(env, ptr, bytecount, 1);
1215
        break;
1216
    case 0x11:
1217
        ret = write_ldt(env, ptr, bytecount, 0);
1218
        break;
1219
    }
1220
    return ret;
1221
}
1222

    
1223
#endif /* defined(TARGET_I386) */
1224

    
1225
/* this stack is the equivalent of the kernel stack associated with a
1226
   thread/process */
1227
#define NEW_STACK_SIZE 8192
1228

    
1229
static int clone_func(void *arg)
1230
{
1231
    CPUState *env = arg;
1232
    cpu_loop(env);
1233
    /* never exits */
1234
    return 0;
1235
}
1236

    
1237
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1238
{
1239
    int ret;
1240
    TaskState *ts;
1241
    uint8_t *new_stack;
1242
    CPUState *new_env;
1243
    
1244
    if (flags & CLONE_VM) {
1245
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1246
        memset(ts, 0, sizeof(TaskState));
1247
        new_stack = ts->stack;
1248
        ts->used = 1;
1249
        /* add in task state list */
1250
        ts->next = first_task_state;
1251
        first_task_state = ts;
1252
        /* we create a new CPU instance. */
1253
        new_env = cpu_init();
1254
        memcpy(new_env, env, sizeof(CPUState));
1255
#if defined(TARGET_I386)
1256
        if (!newsp)
1257
            newsp = env->regs[R_ESP];
1258
        new_env->regs[R_ESP] = newsp;
1259
        new_env->regs[R_EAX] = 0;
1260
#elif defined(TARGET_ARM)
1261
        if (!newsp)
1262
            newsp = env->regs[13];
1263
        new_env->regs[13] = newsp;
1264
        new_env->regs[0] = 0;
1265
#else
1266
#error unsupported target CPU
1267
#endif
1268
        new_env->opaque = ts;
1269
#ifdef __ia64__
1270
        ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1271
#else
1272
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1273
#endif
1274
    } else {
1275
        /* if no CLONE_VM, we consider it is a fork */
1276
        if ((flags & ~CSIGNAL) != 0)
1277
            return -EINVAL;
1278
        ret = fork();
1279
    }
1280
    return ret;
1281
}
1282

    
1283
static long do_fcntl(int fd, int cmd, unsigned long arg)
1284
{
1285
    struct flock fl;
1286
    struct target_flock *target_fl = (void *)arg;
1287
    long ret;
1288
    
1289
    switch(cmd) {
1290
    case TARGET_F_GETLK:
1291
        ret = fcntl(fd, cmd, &fl);
1292
        if (ret == 0) {
1293
            target_fl->l_type = tswap16(fl.l_type);
1294
            target_fl->l_whence = tswap16(fl.l_whence);
1295
            target_fl->l_start = tswapl(fl.l_start);
1296
            target_fl->l_len = tswapl(fl.l_len);
1297
            target_fl->l_pid = tswapl(fl.l_pid);
1298
        }
1299
        break;
1300
        
1301
    case TARGET_F_SETLK:
1302
    case TARGET_F_SETLKW:
1303
        fl.l_type = tswap16(target_fl->l_type);
1304
        fl.l_whence = tswap16(target_fl->l_whence);
1305
        fl.l_start = tswapl(target_fl->l_start);
1306
        fl.l_len = tswapl(target_fl->l_len);
1307
        fl.l_pid = tswapl(target_fl->l_pid);
1308
        ret = fcntl(fd, cmd, &fl);
1309
        break;
1310
        
1311
    case TARGET_F_GETLK64:
1312
    case TARGET_F_SETLK64:
1313
    case TARGET_F_SETLKW64:
1314
        ret = -1;
1315
        errno = EINVAL;
1316
        break;
1317

    
1318
    default:
1319
        ret = fcntl(fd, cmd, arg);
1320
        break;
1321
    }
1322
    return ret;
1323
}
1324

    
1325

    
1326
#define high2lowuid(x) (x)
1327
#define high2lowgid(x) (x)
1328
#define low2highuid(x) (x)
1329
#define low2highgid(x) (x)
1330

    
1331
void syscall_init(void)
1332
{
1333
    IOCTLEntry *ie;
1334
    const argtype *arg_type;
1335
    int size;
1336

    
1337
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
1338
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
1339
#include "syscall_types.h"
1340
#undef STRUCT
1341
#undef STRUCT_SPECIAL
1342

    
1343
    /* we patch the ioctl size if necessary. We rely on the fact that
1344
       no ioctl has all the bits at '1' in the size field */
1345
    ie = ioctl_entries;
1346
    while (ie->target_cmd != 0) {
1347
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1348
            TARGET_IOC_SIZEMASK) {
1349
            arg_type = ie->arg_type;
1350
            if (arg_type[0] != TYPE_PTR) {
1351
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 
1352
                        ie->target_cmd);
1353
                exit(1);
1354
            }
1355
            arg_type++;
1356
            size = thunk_type_size(arg_type, 0);
1357
            ie->target_cmd = (ie->target_cmd & 
1358
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1359
                (size << TARGET_IOC_SIZESHIFT);
1360
        }
1361
        /* automatic consistency check if same arch */
1362
#if defined(__i386__) && defined(TARGET_I386)
1363
        if (ie->target_cmd != ie->host_cmd) {
1364
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 
1365
                    ie->target_cmd, ie->host_cmd);
1366
        }
1367
#endif
1368
        ie++;
1369
    }
1370
}
1371
                                 
1372
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
1373
                long arg4, long arg5, long arg6)
1374
{
1375
    long ret;
1376
    struct stat st;
1377
    struct kernel_statfs *stfs;
1378
    
1379
#ifdef DEBUG
1380
    gemu_log("syscall %d\n", num);
1381
#endif
1382
    switch(num) {
1383
    case TARGET_NR_exit:
1384
#ifdef HAVE_GPROF
1385
        _mcleanup();
1386
#endif
1387
        /* XXX: should free thread stack and CPU env */
1388
        _exit(arg1);
1389
        ret = 0; /* avoid warning */
1390
        break;
1391
    case TARGET_NR_read:
1392
        page_unprotect_range((void *)arg2, arg3);
1393
        ret = get_errno(read(arg1, (void *)arg2, arg3));
1394
        break;
1395
    case TARGET_NR_write:
1396
        ret = get_errno(write(arg1, (void *)arg2, arg3));
1397
        break;
1398
    case TARGET_NR_open:
1399
        ret = get_errno(open(path((const char *)arg1), arg2, arg3));
1400
        break;
1401
    case TARGET_NR_close:
1402
        ret = get_errno(close(arg1));
1403
        break;
1404
    case TARGET_NR_brk:
1405
        ret = do_brk((char *)arg1);
1406
        break;
1407
    case TARGET_NR_fork:
1408
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1409
        break;
1410
    case TARGET_NR_waitpid:
1411
        {
1412
            int *status = (int *)arg2;
1413
            ret = get_errno(waitpid(arg1, status, arg3));
1414
            if (!is_error(ret) && status)
1415
                tswapls((long *)&status);
1416
        }
1417
        break;
1418
    case TARGET_NR_creat:
1419
        ret = get_errno(creat((const char *)arg1, arg2));
1420
        break;
1421
    case TARGET_NR_link:
1422
        ret = get_errno(link((const char *)arg1, (const char *)arg2));
1423
        break;
1424
    case TARGET_NR_unlink:
1425
        ret = get_errno(unlink((const char *)arg1));
1426
        break;
1427
    case TARGET_NR_execve:
1428
        {
1429
            char **argp, **envp;
1430
            int argc, envc;
1431
            uint32_t *p;
1432
            char **q;
1433

    
1434
            argc = 0;
1435
            for (p = (void *)arg2; *p; p++)
1436
                argc++;
1437
            envc = 0;
1438
            for (p = (void *)arg3; *p; p++)
1439
                envc++;
1440

    
1441
            argp = alloca((argc + 1) * sizeof(void *));
1442
            envp = alloca((envc + 1) * sizeof(void *));
1443

    
1444
            for (p = (void *)arg2, q = argp; *p; p++, q++)
1445
                *q = (void *)tswap32(*p);
1446
            *q = NULL;
1447

    
1448
            for (p = (void *)arg3, q = envp; *p; p++, q++)
1449
                *q = (void *)tswap32(*p);
1450
            *q = NULL;
1451

    
1452
            ret = get_errno(execve((const char *)arg1, argp, envp));
1453
        }
1454
        break;
1455
    case TARGET_NR_chdir:
1456
        ret = get_errno(chdir((const char *)arg1));
1457
        break;
1458
    case TARGET_NR_time:
1459
        {
1460
            int *time_ptr = (int *)arg1;
1461
            ret = get_errno(time((time_t *)time_ptr));
1462
            if (!is_error(ret) && time_ptr)
1463
                tswap32s(time_ptr);
1464
        }
1465
        break;
1466
    case TARGET_NR_mknod:
1467
        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1468
        break;
1469
    case TARGET_NR_chmod:
1470
        ret = get_errno(chmod((const char *)arg1, arg2));
1471
        break;
1472
    case TARGET_NR_lchown:
1473
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
1474
        break;
1475
    case TARGET_NR_break:
1476
        goto unimplemented;
1477
    case TARGET_NR_oldstat:
1478
        goto unimplemented;
1479
    case TARGET_NR_lseek:
1480
        ret = get_errno(lseek(arg1, arg2, arg3));
1481
        break;
1482
    case TARGET_NR_getpid:
1483
        ret = get_errno(getpid());
1484
        break;
1485
    case TARGET_NR_mount:
1486
        /* need to look at the data field */
1487
        goto unimplemented;
1488
    case TARGET_NR_umount:
1489
        ret = get_errno(umount((const char *)arg1));
1490
        break;
1491
    case TARGET_NR_setuid:
1492
        ret = get_errno(setuid(low2highuid(arg1)));
1493
        break;
1494
    case TARGET_NR_getuid:
1495
        ret = get_errno(getuid());
1496
        break;
1497
    case TARGET_NR_stime:
1498
        {
1499
            int *time_ptr = (int *)arg1;
1500
            if (time_ptr)
1501
                tswap32s(time_ptr);
1502
            ret = get_errno(stime((time_t *)time_ptr));
1503
        }
1504
        break;
1505
    case TARGET_NR_ptrace:
1506
        goto unimplemented;
1507
    case TARGET_NR_alarm:
1508
        ret = alarm(arg1);
1509
        break;
1510
    case TARGET_NR_oldfstat:
1511
        goto unimplemented;
1512
    case TARGET_NR_pause:
1513
        ret = get_errno(pause());
1514
        break;
1515
    case TARGET_NR_utime:
1516
        goto unimplemented;
1517
    case TARGET_NR_stty:
1518
        goto unimplemented;
1519
    case TARGET_NR_gtty:
1520
        goto unimplemented;
1521
    case TARGET_NR_access:
1522
        ret = get_errno(access((const char *)arg1, arg2));
1523
        break;
1524
    case TARGET_NR_nice:
1525
        ret = get_errno(nice(arg1));
1526
        break;
1527
    case TARGET_NR_ftime:
1528
        goto unimplemented;
1529
    case TARGET_NR_sync:
1530
        sync();
1531
        ret = 0;
1532
        break;
1533
    case TARGET_NR_kill:
1534
        ret = get_errno(kill(arg1, arg2));
1535
        break;
1536
    case TARGET_NR_rename:
1537
        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1538
        break;
1539
    case TARGET_NR_mkdir:
1540
        ret = get_errno(mkdir((const char *)arg1, arg2));
1541
        break;
1542
    case TARGET_NR_rmdir:
1543
        ret = get_errno(rmdir((const char *)arg1));
1544
        break;
1545
    case TARGET_NR_dup:
1546
        ret = get_errno(dup(arg1));
1547
        break;
1548
    case TARGET_NR_pipe:
1549
        {
1550
            int *pipe_ptr = (int *)arg1;
1551
            ret = get_errno(pipe(pipe_ptr));
1552
            if (!is_error(ret)) {
1553
                tswap32s(&pipe_ptr[0]);
1554
                tswap32s(&pipe_ptr[1]);
1555
            }
1556
        }
1557
        break;
1558
    case TARGET_NR_times:
1559
        {
1560
            struct target_tms *tmsp = (void *)arg1;
1561
            struct tms tms;
1562
            ret = get_errno(times(&tms));
1563
            if (tmsp) {
1564
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1565
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1566
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1567
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1568
            }
1569
            if (!is_error(ret))
1570
                ret = host_to_target_clock_t(ret);
1571
        }
1572
        break;
1573
    case TARGET_NR_prof:
1574
        goto unimplemented;
1575
    case TARGET_NR_setgid:
1576
        ret = get_errno(setgid(low2highgid(arg1)));
1577
        break;
1578
    case TARGET_NR_getgid:
1579
        ret = get_errno(getgid());
1580
        break;
1581
    case TARGET_NR_signal:
1582
        goto unimplemented;
1583
    case TARGET_NR_geteuid:
1584
        ret = get_errno(geteuid());
1585
        break;
1586
    case TARGET_NR_getegid:
1587
        ret = get_errno(getegid());
1588
        break;
1589
    case TARGET_NR_acct:
1590
        goto unimplemented;
1591
    case TARGET_NR_umount2:
1592
        ret = get_errno(umount2((const char *)arg1, arg2));
1593
        break;
1594
    case TARGET_NR_lock:
1595
        goto unimplemented;
1596
    case TARGET_NR_ioctl:
1597
        ret = do_ioctl(arg1, arg2, arg3);
1598
        break;
1599
    case TARGET_NR_fcntl:
1600
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
1601
        break;
1602
    case TARGET_NR_mpx:
1603
        goto unimplemented;
1604
    case TARGET_NR_setpgid:
1605
        ret = get_errno(setpgid(arg1, arg2));
1606
        break;
1607
    case TARGET_NR_ulimit:
1608
        goto unimplemented;
1609
    case TARGET_NR_oldolduname:
1610
        goto unimplemented;
1611
    case TARGET_NR_umask:
1612
        ret = get_errno(umask(arg1));
1613
        break;
1614
    case TARGET_NR_chroot:
1615
        ret = get_errno(chroot((const char *)arg1));
1616
        break;
1617
    case TARGET_NR_ustat:
1618
        goto unimplemented;
1619
    case TARGET_NR_dup2:
1620
        ret = get_errno(dup2(arg1, arg2));
1621
        break;
1622
    case TARGET_NR_getppid:
1623
        ret = get_errno(getppid());
1624
        break;
1625
    case TARGET_NR_getpgrp:
1626
        ret = get_errno(getpgrp());
1627
        break;
1628
    case TARGET_NR_setsid:
1629
        ret = get_errno(setsid());
1630
        break;
1631
    case TARGET_NR_sigaction:
1632
        {
1633
            struct target_old_sigaction *old_act = (void *)arg2;
1634
            struct target_old_sigaction *old_oact = (void *)arg3;
1635
            struct target_sigaction act, oact, *pact;
1636
            if (old_act) {
1637
                act._sa_handler = old_act->_sa_handler;
1638
                target_siginitset(&act.sa_mask, old_act->sa_mask);
1639
                act.sa_flags = old_act->sa_flags;
1640
                act.sa_restorer = old_act->sa_restorer;
1641
                pact = &act;
1642
            } else {
1643
                pact = NULL;
1644
            }
1645
            ret = get_errno(do_sigaction(arg1, pact, &oact));
1646
            if (!is_error(ret) && old_oact) {
1647
                old_oact->_sa_handler = oact._sa_handler;
1648
                old_oact->sa_mask = oact.sa_mask.sig[0];
1649
                old_oact->sa_flags = oact.sa_flags;
1650
                old_oact->sa_restorer = oact.sa_restorer;
1651
            }
1652
        }
1653
        break;
1654
    case TARGET_NR_rt_sigaction:
1655
        ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1656
        break;
1657
    case TARGET_NR_sgetmask:
1658
        {
1659
            sigset_t cur_set;
1660
            target_ulong target_set;
1661
            sigprocmask(0, NULL, &cur_set);
1662
            host_to_target_old_sigset(&target_set, &cur_set);
1663
            ret = target_set;
1664
        }
1665
        break;
1666
    case TARGET_NR_ssetmask:
1667
        {
1668
            sigset_t set, oset, cur_set;
1669
            target_ulong target_set = arg1;
1670
            sigprocmask(0, NULL, &cur_set);
1671
            target_to_host_old_sigset(&set, &target_set);
1672
            sigorset(&set, &set, &cur_set);
1673
            sigprocmask(SIG_SETMASK, &set, &oset);
1674
            host_to_target_old_sigset(&target_set, &oset);
1675
            ret = target_set;
1676
        }
1677
        break;
1678
    case TARGET_NR_sigprocmask:
1679
        {
1680
            int how = arg1;
1681
            sigset_t set, oldset, *set_ptr;
1682
            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1683
            
1684
            if (pset) {
1685
                switch(how) {
1686
                case TARGET_SIG_BLOCK:
1687
                    how = SIG_BLOCK;
1688
                    break;
1689
                case TARGET_SIG_UNBLOCK:
1690
                    how = SIG_UNBLOCK;
1691
                    break;
1692
                case TARGET_SIG_SETMASK:
1693
                    how = SIG_SETMASK;
1694
                    break;
1695
                default:
1696
                    ret = -EINVAL;
1697
                    goto fail;
1698
                }
1699
                target_to_host_old_sigset(&set, pset);
1700
                set_ptr = &set;
1701
            } else {
1702
                how = 0;
1703
                set_ptr = NULL;
1704
            }
1705
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1706
            if (!is_error(ret) && poldset) {
1707
                host_to_target_old_sigset(poldset, &oldset);
1708
            }
1709
        }
1710
        break;
1711
    case TARGET_NR_rt_sigprocmask:
1712
        {
1713
            int how = arg1;
1714
            sigset_t set, oldset, *set_ptr;
1715
            target_sigset_t *pset = (void *)arg2;
1716
            target_sigset_t *poldset = (void *)arg3;
1717
            
1718
            if (pset) {
1719
                switch(how) {
1720
                case TARGET_SIG_BLOCK:
1721
                    how = SIG_BLOCK;
1722
                    break;
1723
                case TARGET_SIG_UNBLOCK:
1724
                    how = SIG_UNBLOCK;
1725
                    break;
1726
                case TARGET_SIG_SETMASK:
1727
                    how = SIG_SETMASK;
1728
                    break;
1729
                default:
1730
                    ret = -EINVAL;
1731
                    goto fail;
1732
                }
1733
                target_to_host_sigset(&set, pset);
1734
                set_ptr = &set;
1735
            } else {
1736
                how = 0;
1737
                set_ptr = NULL;
1738
            }
1739
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1740
            if (!is_error(ret) && poldset) {
1741
                host_to_target_sigset(poldset, &oldset);
1742
            }
1743
        }
1744
        break;
1745
    case TARGET_NR_sigpending:
1746
        {
1747
            sigset_t set;
1748
            ret = get_errno(sigpending(&set));
1749
            if (!is_error(ret)) {
1750
                host_to_target_old_sigset((target_ulong *)arg1, &set);
1751
            }
1752
        }
1753
        break;
1754
    case TARGET_NR_rt_sigpending:
1755
        {
1756
            sigset_t set;
1757
            ret = get_errno(sigpending(&set));
1758
            if (!is_error(ret)) {
1759
                host_to_target_sigset((target_sigset_t *)arg1, &set);
1760
            }
1761
        }
1762
        break;
1763
    case TARGET_NR_sigsuspend:
1764
        {
1765
            sigset_t set;
1766
            target_to_host_old_sigset(&set, (target_ulong *)arg1);
1767
            ret = get_errno(sigsuspend(&set));
1768
        }
1769
        break;
1770
    case TARGET_NR_rt_sigsuspend:
1771
        {
1772
            sigset_t set;
1773
            target_to_host_sigset(&set, (target_sigset_t *)arg1);
1774
            ret = get_errno(sigsuspend(&set));
1775
        }
1776
        break;
1777
    case TARGET_NR_rt_sigtimedwait:
1778
        {
1779
            target_sigset_t *target_set = (void *)arg1;
1780
            target_siginfo_t *target_uinfo = (void *)arg2;
1781
            struct target_timespec *target_uts = (void *)arg3;
1782
            sigset_t set;
1783
            struct timespec uts, *puts;
1784
            siginfo_t uinfo;
1785
            
1786
            target_to_host_sigset(&set, target_set);
1787
            if (target_uts) {
1788
                puts = &uts;
1789
                puts->tv_sec = tswapl(target_uts->tv_sec);
1790
                puts->tv_nsec = tswapl(target_uts->tv_nsec);
1791
            } else {
1792
                puts = NULL;
1793
            }
1794
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
1795
            if (!is_error(ret) && target_uinfo) {
1796
                host_to_target_siginfo(target_uinfo, &uinfo);
1797
            }
1798
        }
1799
        break;
1800
    case TARGET_NR_rt_sigqueueinfo:
1801
        {
1802
            siginfo_t uinfo;
1803
            target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
1804
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
1805
        }
1806
        break;
1807
    case TARGET_NR_sigreturn:
1808
        /* NOTE: ret is eax, so not transcoding must be done */
1809
        ret = do_sigreturn(cpu_env);
1810
        break;
1811
    case TARGET_NR_rt_sigreturn:
1812
        /* NOTE: ret is eax, so not transcoding must be done */
1813
        ret = do_rt_sigreturn(cpu_env);
1814
        break;
1815
    case TARGET_NR_setreuid:
1816
        ret = get_errno(setreuid(arg1, arg2));
1817
        break;
1818
    case TARGET_NR_setregid:
1819
        ret = get_errno(setregid(arg1, arg2));
1820
        break;
1821
    case TARGET_NR_sethostname:
1822
        ret = get_errno(sethostname((const char *)arg1, arg2));
1823
        break;
1824
    case TARGET_NR_setrlimit:
1825
        {
1826
            /* XXX: convert resource ? */
1827
            int resource = arg1;
1828
            struct target_rlimit *target_rlim = (void *)arg2;
1829
            struct rlimit rlim;
1830
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
1831
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
1832
            ret = get_errno(setrlimit(resource, &rlim));
1833
        }
1834
        break;
1835
    case TARGET_NR_getrlimit:
1836
        {
1837
            /* XXX: convert resource ? */
1838
            int resource = arg1;
1839
            struct target_rlimit *target_rlim = (void *)arg2;
1840
            struct rlimit rlim;
1841
            
1842
            ret = get_errno(getrlimit(resource, &rlim));
1843
            if (!is_error(ret)) {
1844
                target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
1845
                target_rlim->rlim_max = tswapl(rlim.rlim_max);
1846
            }
1847
        }
1848
        break;
1849
    case TARGET_NR_getrusage:
1850
        {
1851
            struct rusage rusage;
1852
            struct target_rusage *target_rusage = (void *)arg2;
1853
            ret = get_errno(getrusage(arg1, &rusage));
1854
            if (!is_error(ret)) {
1855
                host_to_target_rusage(target_rusage, &rusage);
1856
            }
1857
        }
1858
        break;
1859
    case TARGET_NR_gettimeofday:
1860
        {
1861
            struct target_timeval *target_tv = (void *)arg1;
1862
            struct timeval tv;
1863
            ret = get_errno(gettimeofday(&tv, NULL));
1864
            if (!is_error(ret)) {
1865
                host_to_target_timeval(target_tv, &tv);
1866
            }
1867
        }
1868
        break;
1869
    case TARGET_NR_settimeofday:
1870
        {
1871
            struct target_timeval *target_tv = (void *)arg1;
1872
            struct timeval tv;
1873
            target_to_host_timeval(&tv, target_tv);
1874
            ret = get_errno(settimeofday(&tv, NULL));
1875
        }
1876
        break;
1877
    case TARGET_NR_getgroups:
1878
        {
1879
            int gidsetsize = arg1;
1880
            uint16_t *target_grouplist = (void *)arg2;
1881
            gid_t *grouplist;
1882
            int i;
1883

    
1884
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1885
            ret = get_errno(getgroups(gidsetsize, grouplist));
1886
            if (!is_error(ret)) {
1887
                for(i = 0;i < gidsetsize; i++)
1888
                    target_grouplist[i] = tswap16(grouplist[i]);
1889
            }
1890
        }
1891
        break;
1892
    case TARGET_NR_setgroups:
1893
        {
1894
            int gidsetsize = arg1;
1895
            uint16_t *target_grouplist = (void *)arg2;
1896
            gid_t *grouplist;
1897
            int i;
1898

    
1899
            grouplist = alloca(gidsetsize * sizeof(gid_t));
1900
            for(i = 0;i < gidsetsize; i++)
1901
                grouplist[i] = tswap16(target_grouplist[i]);
1902
            ret = get_errno(setgroups(gidsetsize, grouplist));
1903
        }
1904
        break;
1905
    case TARGET_NR_select:
1906
        {
1907
            struct target_sel_arg_struct *sel = (void *)arg1;
1908
            sel->n = tswapl(sel->n);
1909
            sel->inp = tswapl(sel->inp);
1910
            sel->outp = tswapl(sel->outp);
1911
            sel->exp = tswapl(sel->exp);
1912
            sel->tvp = tswapl(sel->tvp);
1913
            ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
1914
                            (void *)sel->exp, (void *)sel->tvp);
1915
        }
1916
        break;
1917
    case TARGET_NR_symlink:
1918
        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
1919
        break;
1920
    case TARGET_NR_oldlstat:
1921
        goto unimplemented;
1922
    case TARGET_NR_readlink:
1923
        ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
1924
        break;
1925
    case TARGET_NR_uselib:
1926
        goto unimplemented;
1927
    case TARGET_NR_swapon:
1928
        ret = get_errno(swapon((const char *)arg1, arg2));
1929
        break;
1930
    case TARGET_NR_reboot:
1931
        goto unimplemented;
1932
    case TARGET_NR_readdir:
1933
        goto unimplemented;
1934
    case TARGET_NR_mmap:
1935
#if defined(TARGET_I386) || defined(TARGET_ARM)
1936
        {
1937
            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
1938
            vptr = (uint32_t *)arg1;
1939
            v1 = tswap32(vptr[0]);
1940
            v2 = tswap32(vptr[1]);
1941
            v3 = tswap32(vptr[2]);
1942
            v4 = tswap32(vptr[3]);
1943
            v5 = tswap32(vptr[4]);
1944
            v6 = tswap32(vptr[5]);
1945
            ret = get_errno(target_mmap(v1, v2, v3, 
1946
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
1947
                                        v5, v6));
1948
        }
1949
#else
1950
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
1951
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
1952
                                    arg5,
1953
                                    arg6));
1954
#endif
1955
        break;
1956
    case TARGET_NR_mmap2:
1957
        ret = get_errno(target_mmap(arg1, arg2, arg3, 
1958
                                    target_to_host_bitmask(arg4, mmap_flags_tbl), 
1959
                                    arg5,
1960
                                    arg6 << TARGET_PAGE_BITS));
1961
        break;
1962
    case TARGET_NR_munmap:
1963
        ret = get_errno(target_munmap(arg1, arg2));
1964
        break;
1965
    case TARGET_NR_mprotect:
1966
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
1967
        break;
1968
    case TARGET_NR_mremap:
1969
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
1970
        break;
1971
    case TARGET_NR_msync:
1972
        ret = get_errno(msync((void *)arg1, arg2, arg3));
1973
        break;
1974
    case TARGET_NR_mlock:
1975
        ret = get_errno(mlock((void *)arg1, arg2));
1976
        break;
1977
    case TARGET_NR_munlock:
1978
        ret = get_errno(munlock((void *)arg1, arg2));
1979
        break;
1980
    case TARGET_NR_mlockall:
1981
        ret = get_errno(mlockall(arg1));
1982
        break;
1983
    case TARGET_NR_munlockall:
1984
        ret = get_errno(munlockall());
1985
        break;
1986
    case TARGET_NR_truncate:
1987
        ret = get_errno(truncate((const char *)arg1, arg2));
1988
        break;
1989
    case TARGET_NR_ftruncate:
1990
        ret = get_errno(ftruncate(arg1, arg2));
1991
        break;
1992
    case TARGET_NR_fchmod:
1993
        ret = get_errno(fchmod(arg1, arg2));
1994
        break;
1995
    case TARGET_NR_fchown:
1996
        ret = get_errno(fchown(arg1, arg2, arg3));
1997
        break;
1998
    case TARGET_NR_getpriority:
1999
        ret = get_errno(getpriority(arg1, arg2));
2000
        break;
2001
    case TARGET_NR_setpriority:
2002
        ret = get_errno(setpriority(arg1, arg2, arg3));
2003
        break;
2004
    case TARGET_NR_profil:
2005
        goto unimplemented;
2006
    case TARGET_NR_statfs:
2007
        stfs = (void *)arg2;
2008
        ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2009
    convert_statfs:
2010
        if (!is_error(ret)) {
2011
            tswap32s(&stfs->f_type);
2012
            tswap32s(&stfs->f_bsize);
2013
            tswap32s(&stfs->f_blocks);
2014
            tswap32s(&stfs->f_bfree);
2015
            tswap32s(&stfs->f_bavail);
2016
            tswap32s(&stfs->f_files);
2017
            tswap32s(&stfs->f_ffree);
2018
            tswap32s(&stfs->f_fsid.val[0]);
2019
            tswap32s(&stfs->f_fsid.val[1]);
2020
            tswap32s(&stfs->f_namelen);
2021
        }
2022
        break;
2023
    case TARGET_NR_fstatfs:
2024
        stfs = (void *)arg2;
2025
        ret = get_errno(sys_fstatfs(arg1, stfs));
2026
        goto convert_statfs;
2027
    case TARGET_NR_ioperm:
2028
        goto unimplemented;
2029
    case TARGET_NR_socketcall:
2030
        ret = do_socketcall(arg1, (int32_t *)arg2);
2031
        break;
2032
    case TARGET_NR_syslog:
2033
        goto unimplemented;
2034
    case TARGET_NR_setitimer:
2035
        {
2036
            struct target_itimerval *target_value = (void *)arg2;
2037
            struct target_itimerval *target_ovalue = (void *)arg3;
2038
            struct itimerval value, ovalue, *pvalue;
2039

    
2040
            if (target_value) {
2041
                pvalue = &value;
2042
                target_to_host_timeval(&pvalue->it_interval, 
2043
                                       &target_value->it_interval);
2044
                target_to_host_timeval(&pvalue->it_value, 
2045
                                       &target_value->it_value);
2046
            } else {
2047
                pvalue = NULL;
2048
            }
2049
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2050
            if (!is_error(ret) && target_ovalue) {
2051
                host_to_target_timeval(&target_ovalue->it_interval, 
2052
                                       &ovalue.it_interval);
2053
                host_to_target_timeval(&target_ovalue->it_value, 
2054
                                       &ovalue.it_value);
2055
            }
2056
        }
2057
        break;
2058
    case TARGET_NR_getitimer:
2059
        {
2060
            struct target_itimerval *target_value = (void *)arg2;
2061
            struct itimerval value;
2062
            
2063
            ret = get_errno(getitimer(arg1, &value));
2064
            if (!is_error(ret) && target_value) {
2065
                host_to_target_timeval(&target_value->it_interval, 
2066
                                       &value.it_interval);
2067
                host_to_target_timeval(&target_value->it_value, 
2068
                                       &value.it_value);
2069
            }
2070
        }
2071
        break;
2072
    case TARGET_NR_stat:
2073
        ret = get_errno(stat(path((const char *)arg1), &st));
2074
        goto do_stat;
2075
    case TARGET_NR_lstat:
2076
        ret = get_errno(lstat(path((const char *)arg1), &st));
2077
        goto do_stat;
2078
    case TARGET_NR_fstat:
2079
        {
2080
            ret = get_errno(fstat(arg1, &st));
2081
        do_stat:
2082
            if (!is_error(ret)) {
2083
                struct target_stat *target_st = (void *)arg2;
2084
                target_st->st_dev = tswap16(st.st_dev);
2085
                target_st->st_ino = tswapl(st.st_ino);
2086
                target_st->st_mode = tswap16(st.st_mode);
2087
                target_st->st_nlink = tswap16(st.st_nlink);
2088
                target_st->st_uid = tswap16(st.st_uid);
2089
                target_st->st_gid = tswap16(st.st_gid);
2090
                target_st->st_rdev = tswap16(st.st_rdev);
2091
                target_st->st_size = tswapl(st.st_size);
2092
                target_st->st_blksize = tswapl(st.st_blksize);
2093
                target_st->st_blocks = tswapl(st.st_blocks);
2094
                target_st->target_st_atime = tswapl(st.st_atime);
2095
                target_st->target_st_mtime = tswapl(st.st_mtime);
2096
                target_st->target_st_ctime = tswapl(st.st_ctime);
2097
            }
2098
        }
2099
        break;
2100
    case TARGET_NR_olduname:
2101
        goto unimplemented;
2102
    case TARGET_NR_iopl:
2103
        goto unimplemented;
2104
    case TARGET_NR_vhangup:
2105
        ret = get_errno(vhangup());
2106
        break;
2107
    case TARGET_NR_idle:
2108
        goto unimplemented;
2109
    case TARGET_NR_wait4:
2110
        {
2111
            int status;
2112
            target_long *status_ptr = (void *)arg2;
2113
            struct rusage rusage, *rusage_ptr;
2114
            struct target_rusage *target_rusage = (void *)arg4;
2115
            if (target_rusage)
2116
                rusage_ptr = &rusage;
2117
            else
2118
                rusage_ptr = NULL;
2119
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2120
            if (!is_error(ret)) {
2121
                if (status_ptr)
2122
                    *status_ptr = tswap32(status);
2123
                if (target_rusage) {
2124
                    host_to_target_rusage(target_rusage, &rusage);
2125
                }
2126
            }
2127
        }
2128
        break;
2129
    case TARGET_NR_swapoff:
2130
        ret = get_errno(swapoff((const char *)arg1));
2131
        break;
2132
    case TARGET_NR_sysinfo:
2133
        goto unimplemented;
2134
    case TARGET_NR_ipc:
2135
        goto unimplemented;
2136
    case TARGET_NR_fsync:
2137
        ret = get_errno(fsync(arg1));
2138
        break;
2139
    case TARGET_NR_clone:
2140
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
2141
        break;
2142
#ifdef __NR_exit_group
2143
        /* new thread calls */
2144
    case TARGET_NR_exit_group:
2145
        ret = get_errno(exit_group(arg1));
2146
        break;
2147
#endif
2148
    case TARGET_NR_setdomainname:
2149
        ret = get_errno(setdomainname((const char *)arg1, arg2));
2150
        break;
2151
    case TARGET_NR_uname:
2152
        /* no need to transcode because we use the linux syscall */
2153
        ret = get_errno(sys_uname((struct new_utsname *)arg1));
2154
        break;
2155
#ifdef TARGET_I386
2156
    case TARGET_NR_modify_ldt:
2157
        ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2158
        break;
2159
    case TARGET_NR_vm86old:
2160
        goto unimplemented;
2161
    case TARGET_NR_vm86:
2162
        ret = do_vm86(cpu_env, arg1, (void *)arg2);
2163
        break;
2164
#endif
2165
    case TARGET_NR_adjtimex:
2166
        goto unimplemented;
2167
    case TARGET_NR_create_module:
2168
    case TARGET_NR_init_module:
2169
    case TARGET_NR_delete_module:
2170
    case TARGET_NR_get_kernel_syms:
2171
        goto unimplemented;
2172
    case TARGET_NR_quotactl:
2173
        goto unimplemented;
2174
    case TARGET_NR_getpgid:
2175
        ret = get_errno(getpgid(arg1));
2176
        break;
2177
    case TARGET_NR_fchdir:
2178
        ret = get_errno(fchdir(arg1));
2179
        break;
2180
    case TARGET_NR_bdflush:
2181
        goto unimplemented;
2182
    case TARGET_NR_sysfs:
2183
        goto unimplemented;
2184
    case TARGET_NR_personality:
2185
        ret = get_errno(personality(arg1));
2186
        break;
2187
    case TARGET_NR_afs_syscall:
2188
        goto unimplemented;
2189
    case TARGET_NR_setfsuid:
2190
        ret = get_errno(setfsuid(arg1));
2191
        break;
2192
    case TARGET_NR_setfsgid:
2193
        ret = get_errno(setfsgid(arg1));
2194
        break;
2195
    case TARGET_NR__llseek:
2196
        {
2197
            int64_t res;
2198
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2199
            *(int64_t *)arg4 = tswap64(res);
2200
        }
2201
        break;
2202
    case TARGET_NR_getdents:
2203
#if TARGET_LONG_SIZE != 4
2204
#error not supported
2205
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2206
        {
2207
            struct target_dirent *target_dirp = (void *)arg2;
2208
            struct dirent *dirp;
2209
            long count = arg3;
2210

    
2211
            dirp = malloc(count);
2212
            if (!dirp)
2213
                return -ENOMEM;
2214
            
2215
            ret = get_errno(sys_getdents(arg1, dirp, count));
2216
            if (!is_error(ret)) {
2217
                struct dirent *de;
2218
                struct target_dirent *tde;
2219
                int len = ret;
2220
                int reclen, treclen;
2221
                int count1, tnamelen;
2222

    
2223
                count1 = 0;
2224
                de = dirp;
2225
                tde = target_dirp;
2226
                while (len > 0) {
2227
                    reclen = de->d_reclen;
2228
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2229
                    tde->d_reclen = tswap16(treclen);
2230
                    tde->d_ino = tswapl(de->d_ino);
2231
                    tde->d_off = tswapl(de->d_off);
2232
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
2233
                    if (tnamelen > 256)
2234
                        tnamelen = 256;
2235
                    strncpy(tde->d_name, de->d_name, tnamelen);
2236
                    de = (struct dirent *)((char *)de + reclen);
2237
                    len -= reclen;
2238
                    tde = (struct dirent *)((char *)tde + treclen);
2239
                    count1 += treclen;
2240
                }
2241
                ret = count1;
2242
            }
2243
            free(dirp);
2244
        }
2245
#else
2246
        {
2247
            struct dirent *dirp = (void *)arg2;
2248
            long count = arg3;
2249

    
2250
            ret = get_errno(sys_getdents(arg1, dirp, count));
2251
            if (!is_error(ret)) {
2252
                struct dirent *de;
2253
                int len = ret;
2254
                int reclen;
2255
                de = dirp;
2256
                while (len > 0) {
2257
                    reclen = de->d_reclen;
2258
                    if (reclen > len)
2259
                        break;
2260
                    de->d_reclen = tswap16(reclen);
2261
                    tswapls(&de->d_ino);
2262
                    tswapls(&de->d_off);
2263
                    de = (struct dirent *)((char *)de + reclen);
2264
                    len -= reclen;
2265
                }
2266
            }
2267
        }
2268
#endif
2269
        break;
2270
    case TARGET_NR_getdents64:
2271
        {
2272
            struct dirent64 *dirp = (void *)arg2;
2273
            long count = arg3;
2274
            ret = get_errno(sys_getdents64(arg1, dirp, count));
2275
            if (!is_error(ret)) {
2276
                struct dirent64 *de;
2277
                int len = ret;
2278
                int reclen;
2279
                de = dirp;
2280
                while (len > 0) {
2281
                    reclen = de->d_reclen;
2282
                    if (reclen > len)
2283
                        break;
2284
                    de->d_reclen = tswap16(reclen);
2285
                    tswap64s(&de->d_ino);
2286
                    tswap64s(&de->d_off);
2287
                    de = (struct dirent64 *)((char *)de + reclen);
2288
                    len -= reclen;
2289
                }
2290
            }
2291
        }
2292
        break;
2293
    case TARGET_NR__newselect:
2294
        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
2295
                        (void *)arg5);
2296
        break;
2297
    case TARGET_NR_poll:
2298
        {
2299
            struct target_pollfd *target_pfd = (void *)arg1;
2300
            unsigned int nfds = arg2;
2301
            int timeout = arg3;
2302
            struct pollfd *pfd;
2303
            unsigned int i;
2304

    
2305
            pfd = alloca(sizeof(struct pollfd) * nfds);
2306
            for(i = 0; i < nfds; i++) {
2307
                pfd[i].fd = tswap32(target_pfd[i].fd);
2308
                pfd[i].events = tswap16(target_pfd[i].events);
2309
            }
2310
            ret = get_errno(poll(pfd, nfds, timeout));
2311
            if (!is_error(ret)) {
2312
                for(i = 0; i < nfds; i++) {
2313
                    target_pfd[i].revents = tswap16(pfd[i].revents);
2314
                }
2315
            }
2316
        }
2317
        break;
2318
    case TARGET_NR_flock:
2319
        /* NOTE: the flock constant seems to be the same for every
2320
           Linux platform */
2321
        ret = get_errno(flock(arg1, arg2));
2322
        break;
2323
    case TARGET_NR_readv:
2324
        {
2325
            int count = arg3;
2326
            int i;
2327
            struct iovec *vec;
2328
            struct target_iovec *target_vec = (void *)arg2;
2329

    
2330
            vec = alloca(count * sizeof(struct iovec));
2331
            for(i = 0;i < count; i++) {
2332
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2333
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2334
            }
2335
            ret = get_errno(readv(arg1, vec, count));
2336
        }
2337
        break;
2338
    case TARGET_NR_writev:
2339
        {
2340
            int count = arg3;
2341
            int i;
2342
            struct iovec *vec;
2343
            struct target_iovec *target_vec = (void *)arg2;
2344

    
2345
            vec = alloca(count * sizeof(struct iovec));
2346
            for(i = 0;i < count; i++) {
2347
                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2348
                vec[i].iov_len = tswapl(target_vec[i].iov_len);
2349
            }
2350
            ret = get_errno(writev(arg1, vec, count));
2351
        }
2352
        break;
2353
    case TARGET_NR_getsid:
2354
        ret = get_errno(getsid(arg1));
2355
        break;
2356
    case TARGET_NR_fdatasync:
2357
        ret = get_errno(fdatasync(arg1));
2358
        break;
2359
    case TARGET_NR__sysctl:
2360
        goto unimplemented;
2361
    case TARGET_NR_sched_setparam:
2362
        {
2363
            struct sched_param *target_schp = (void *)arg2;
2364
            struct sched_param schp;
2365
            schp.sched_priority = tswap32(target_schp->sched_priority);
2366
            ret = get_errno(sched_setparam(arg1, &schp));
2367
        }
2368
        break;
2369
    case TARGET_NR_sched_getparam:
2370
        {
2371
            struct sched_param *target_schp = (void *)arg2;
2372
            struct sched_param schp;
2373
            ret = get_errno(sched_getparam(arg1, &schp));
2374
            if (!is_error(ret)) {
2375
                target_schp->sched_priority = tswap32(schp.sched_priority);
2376
            }
2377
        }
2378
        break;
2379
    case TARGET_NR_sched_setscheduler:
2380
        {
2381
            struct sched_param *target_schp = (void *)arg3;
2382
            struct sched_param schp;
2383
            schp.sched_priority = tswap32(target_schp->sched_priority);
2384
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2385
        }
2386
        break;
2387
    case TARGET_NR_sched_getscheduler:
2388
        ret = get_errno(sched_getscheduler(arg1));
2389
        break;
2390
    case TARGET_NR_sched_yield:
2391
        ret = get_errno(sched_yield());
2392
        break;
2393
    case TARGET_NR_sched_get_priority_max:
2394
        ret = get_errno(sched_get_priority_max(arg1));
2395
        break;
2396
    case TARGET_NR_sched_get_priority_min:
2397
        ret = get_errno(sched_get_priority_min(arg1));
2398
        break;
2399
    case TARGET_NR_sched_rr_get_interval:
2400
        {
2401
            struct target_timespec *target_ts = (void *)arg2;
2402
            struct timespec ts;
2403
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
2404
            if (!is_error(ret)) {
2405
                target_ts->tv_sec = tswapl(ts.tv_sec);
2406
                target_ts->tv_nsec = tswapl(ts.tv_nsec);
2407
            }
2408
        }
2409
        break;
2410
    case TARGET_NR_nanosleep:
2411
        {
2412
            struct target_timespec *target_req = (void *)arg1;
2413
            struct target_timespec *target_rem = (void *)arg2;
2414
            struct timespec req, rem;
2415
            req.tv_sec = tswapl(target_req->tv_sec);
2416
            req.tv_nsec = tswapl(target_req->tv_nsec);
2417
            ret = get_errno(nanosleep(&req, &rem));
2418
            if (target_rem) {
2419
                target_rem->tv_sec = tswapl(rem.tv_sec);
2420
                target_rem->tv_nsec = tswapl(rem.tv_nsec);
2421
            }
2422
        }
2423
        break;
2424
    case TARGET_NR_setresuid:
2425
        ret = get_errno(setresuid(low2highuid(arg1), 
2426
                                  low2highuid(arg2), 
2427
                                  low2highuid(arg3)));
2428
        break;
2429
    case TARGET_NR_getresuid:
2430
        {
2431
            int ruid, euid, suid;
2432
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2433
            if (!is_error(ret)) {
2434
                *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2435
                *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2436
                *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2437
            }
2438
        }
2439
        break;
2440
    case TARGET_NR_setresgid:
2441
        ret = get_errno(setresgid(low2highgid(arg1), 
2442
                                  low2highgid(arg2), 
2443
                                  low2highgid(arg3)));
2444
        break;
2445
    case TARGET_NR_getresgid:
2446
        {
2447
            int rgid, egid, sgid;
2448
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2449
            if (!is_error(ret)) {
2450
                *(uint16_t *)arg1 = high2lowgid(tswap16(rgid));
2451
                *(uint16_t *)arg2 = high2lowgid(tswap16(egid));
2452
                *(uint16_t *)arg3 = high2lowgid(tswap16(sgid));
2453
            }
2454
        }
2455
        break;
2456
    case TARGET_NR_query_module:
2457
        goto unimplemented;
2458
    case TARGET_NR_nfsservctl:
2459
        goto unimplemented;
2460
    case TARGET_NR_prctl:
2461
        goto unimplemented;
2462
    case TARGET_NR_pread:
2463
        page_unprotect_range((void *)arg2, arg3);
2464
        ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2465
        break;
2466
    case TARGET_NR_pwrite:
2467
        ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2468
        break;
2469
    case TARGET_NR_chown:
2470
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2471
        break;
2472
    case TARGET_NR_getcwd:
2473
        ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2474
        break;
2475
    case TARGET_NR_capget:
2476
        goto unimplemented;
2477
    case TARGET_NR_capset:
2478
        goto unimplemented;
2479
    case TARGET_NR_sigaltstack:
2480
        goto unimplemented;
2481
    case TARGET_NR_sendfile:
2482
        goto unimplemented;
2483
    case TARGET_NR_getpmsg:
2484
        goto unimplemented;
2485
    case TARGET_NR_putpmsg:
2486
        goto unimplemented;
2487
    case TARGET_NR_vfork:
2488
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2489
        break;
2490
    case TARGET_NR_ugetrlimit:
2491
    {
2492
        struct rlimit rlim;
2493
        ret = get_errno(getrlimit(arg1, &rlim));
2494
        if (!is_error(ret)) {
2495
            struct target_rlimit *target_rlim = (void *)arg2;
2496
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2497
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
2498
        }
2499
        break;
2500
    }
2501
    case TARGET_NR_truncate64:
2502
        goto unimplemented;
2503
    case TARGET_NR_ftruncate64:
2504
        goto unimplemented;
2505
    case TARGET_NR_stat64:
2506
        ret = get_errno(stat(path((const char *)arg1), &st));
2507
        goto do_stat64;
2508
    case TARGET_NR_lstat64:
2509
        ret = get_errno(lstat(path((const char *)arg1), &st));
2510
        goto do_stat64;
2511
    case TARGET_NR_fstat64:
2512
        {
2513
            ret = get_errno(fstat(arg1, &st));
2514
        do_stat64:
2515
            if (!is_error(ret)) {
2516
                struct target_stat64 *target_st = (void *)arg2;
2517
                memset(target_st, 0, sizeof(struct target_stat64));
2518
                target_st->st_dev = tswap16(st.st_dev);
2519
                target_st->st_ino = tswap64(st.st_ino);
2520
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2521
                target_st->__st_ino = tswapl(st.st_ino);
2522
#endif
2523
                target_st->st_mode = tswap32(st.st_mode);
2524
                target_st->st_nlink = tswap32(st.st_nlink);
2525
                target_st->st_uid = tswapl(st.st_uid);
2526
                target_st->st_gid = tswapl(st.st_gid);
2527
                target_st->st_rdev = tswap16(st.st_rdev);
2528
                /* XXX: better use of kernel struct */
2529
                target_st->st_size = tswap64(st.st_size);
2530
                target_st->st_blksize = tswapl(st.st_blksize);
2531
                target_st->st_blocks = tswapl(st.st_blocks);
2532
                target_st->target_st_atime = tswapl(st.st_atime);
2533
                target_st->target_st_mtime = tswapl(st.st_mtime);
2534
                target_st->target_st_ctime = tswapl(st.st_ctime);
2535
            }
2536
        }
2537
        break;
2538

    
2539
    case TARGET_NR_lchown32:
2540
        ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2541
        break;
2542
    case TARGET_NR_getuid32:
2543
        ret = get_errno(getuid());
2544
        break;
2545
    case TARGET_NR_getgid32:
2546
        ret = get_errno(getgid());
2547
        break;
2548
    case TARGET_NR_geteuid32:
2549
        ret = get_errno(geteuid());
2550
        break;
2551
    case TARGET_NR_getegid32:
2552
        ret = get_errno(getegid());
2553
        break;
2554
    case TARGET_NR_setreuid32:
2555
        ret = get_errno(setreuid(arg1, arg2));
2556
        break;
2557
    case TARGET_NR_setregid32:
2558
        ret = get_errno(setregid(arg1, arg2));
2559
        break;
2560
    case TARGET_NR_getgroups32:
2561
        goto unimplemented;
2562
    case TARGET_NR_setgroups32:
2563
        goto unimplemented;
2564
    case TARGET_NR_fchown32:
2565
        ret = get_errno(fchown(arg1, arg2, arg3));
2566
        break;
2567
    case TARGET_NR_setresuid32:
2568
        ret = get_errno(setresuid(arg1, arg2, arg3));
2569
        break;
2570
    case TARGET_NR_getresuid32:
2571
        {
2572
            int ruid, euid, suid;
2573
            ret = get_errno(getresuid(&ruid, &euid, &suid));
2574
            if (!is_error(ret)) {
2575
                *(uint32_t *)arg1 = tswap32(ruid);
2576
                *(uint32_t *)arg2 = tswap32(euid);
2577
                *(uint32_t *)arg3 = tswap32(suid);
2578
            }
2579
        }
2580
        break;
2581
    case TARGET_NR_setresgid32:
2582
        ret = get_errno(setresgid(arg1, arg2, arg3));
2583
        break;
2584
    case TARGET_NR_getresgid32:
2585
        {
2586
            int rgid, egid, sgid;
2587
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
2588
            if (!is_error(ret)) {
2589
                *(uint32_t *)arg1 = tswap32(rgid);
2590
                *(uint32_t *)arg2 = tswap32(egid);
2591
                *(uint32_t *)arg3 = tswap32(sgid);
2592
            }
2593
        }
2594
        break;
2595
    case TARGET_NR_chown32:
2596
        ret = get_errno(chown((const char *)arg1, arg2, arg3));
2597
        break;
2598
    case TARGET_NR_setuid32:
2599
        ret = get_errno(setuid(arg1));
2600
        break;
2601
    case TARGET_NR_setgid32:
2602
        ret = get_errno(setgid(arg1));
2603
        break;
2604
    case TARGET_NR_setfsuid32:
2605
        ret = get_errno(setfsuid(arg1));
2606
        break;
2607
    case TARGET_NR_setfsgid32:
2608
        ret = get_errno(setfsgid(arg1));
2609
        break;
2610
    case TARGET_NR_pivot_root:
2611
        goto unimplemented;
2612
    case TARGET_NR_mincore:
2613
        goto unimplemented;
2614
    case TARGET_NR_madvise:
2615
        goto unimplemented;
2616
#if TARGET_LONG_BITS == 32
2617
    case TARGET_NR_fcntl64:
2618
    {
2619
        struct flock64 fl;
2620
        struct target_flock64 *target_fl = (void *)arg3;
2621

    
2622
        switch(arg2) {
2623
        case F_GETLK64:
2624
            ret = get_errno(fcntl(arg1, arg2, &fl));
2625
            if (ret == 0) {
2626
                target_fl->l_type = tswap16(fl.l_type);
2627
                target_fl->l_whence = tswap16(fl.l_whence);
2628
                target_fl->l_start = tswap64(fl.l_start);
2629
                target_fl->l_len = tswap64(fl.l_len);
2630
                target_fl->l_pid = tswapl(fl.l_pid);
2631
            }
2632
            break;
2633

    
2634
        case F_SETLK64:
2635
        case F_SETLKW64:
2636
            fl.l_type = tswap16(target_fl->l_type);
2637
            fl.l_whence = tswap16(target_fl->l_whence);
2638
            fl.l_start = tswap64(target_fl->l_start);
2639
            fl.l_len = tswap64(target_fl->l_len);
2640
            fl.l_pid = tswapl(target_fl->l_pid);
2641
            ret = get_errno(fcntl(arg1, arg2, &fl));
2642
            break;
2643
        default:
2644
            ret = get_errno(do_fcntl(arg1, arg2, arg3));
2645
            break;
2646
        }
2647
        break;
2648
    }
2649
#endif
2650
    case TARGET_NR_security:
2651
        goto unimplemented;
2652
    case TARGET_NR_gettid:
2653
        ret = get_errno(gettid());
2654
        break;
2655
    case TARGET_NR_readahead:
2656
        goto unimplemented;
2657
    case TARGET_NR_setxattr:
2658
    case TARGET_NR_lsetxattr:
2659
    case TARGET_NR_fsetxattr:
2660
    case TARGET_NR_getxattr:
2661
    case TARGET_NR_lgetxattr:
2662
    case TARGET_NR_fgetxattr:
2663
    case TARGET_NR_listxattr:
2664
    case TARGET_NR_llistxattr:
2665
    case TARGET_NR_flistxattr:
2666
    case TARGET_NR_removexattr:
2667
    case TARGET_NR_lremovexattr:
2668
    case TARGET_NR_fremovexattr:
2669
        goto unimplemented_nowarn;
2670
    case TARGET_NR_set_thread_area:
2671
    case TARGET_NR_get_thread_area:
2672
        goto unimplemented_nowarn;
2673
    default:
2674
    unimplemented:
2675
        gemu_log("qemu: Unsupported syscall: %d\n", num);
2676
    unimplemented_nowarn:
2677
        ret = -ENOSYS;
2678
        break;
2679
    }
2680
 fail:
2681
    return ret;
2682
}
2683