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/*
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 *  Linux syscalls
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 *
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 *  Copyright (c) 2003 Fabrice Bellard
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/prctl.h>
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#include <sys/resource.h>
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#include <sys/mman.h>
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#include <sys/swap.h>
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#include <signal.h>
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#include <sched.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/times.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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#include <sys/statfs.h>
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#include <utime.h>
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#include <sys/sysinfo.h>
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//#include <sys/user.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
55

    
56
#define termios host_termios
57
#define winsize host_winsize
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#define termio host_termio
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#define sgttyb host_sgttyb /* same as target */
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#define tchars host_tchars /* same as target */
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#define ltchars host_ltchars /* same as target */
62

    
63
#include <linux/termios.h>
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#include <linux/unistd.h>
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#include <linux/utsname.h>
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#include <linux/cdrom.h>
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#include <linux/hdreg.h>
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#include <linux/soundcard.h>
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#include <linux/dirent.h>
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#include <linux/kd.h>
71

    
72
#include "qemu.h"
73

    
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//#define DEBUG
75

    
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#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
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    || defined(TARGET_M68K) || defined(TARGET_SH4) || defined(TARGET_CRIS)
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/* 16 bit uid wrappers emulation */
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#define USE_UID16
80
#endif
81

    
82
//#include <linux/msdos_fs.h>
83
#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])
85

    
86

    
87
#undef _syscall0
88
#undef _syscall1
89
#undef _syscall2
90
#undef _syscall3
91
#undef _syscall4
92
#undef _syscall5
93
#undef _syscall6
94

    
95
#define _syscall0(type,name)                \
96
type name (void)                        \
97
{                                        \
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        return syscall(__NR_##name);        \
99
}
100

    
101
#define _syscall1(type,name,type1,arg1)                \
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type name (type1 arg1)                                \
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{                                                \
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        return syscall(__NR_##name, arg1);        \
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}
106

    
107
#define _syscall2(type,name,type1,arg1,type2,arg2)        \
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type name (type1 arg1,type2 arg2)                        \
109
{                                                        \
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        return syscall(__NR_##name, arg1, arg2);        \
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}
112

    
113
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
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type name (type1 arg1,type2 arg2,type3 arg3)                        \
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{                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3);                \
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}
118

    
119
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4)                                \
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{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4);                        \
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}
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125
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
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                  type5,arg5)                                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)                \
128
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5);                \
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}
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132

    
133
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
134
                  type5,arg5,type6,arg6)                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6)        \
136
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6);        \
138
}
139

    
140

    
141
#define __NR_sys_uname __NR_uname
142
#define __NR_sys_faccessat __NR_faccessat
143
#define __NR_sys_fchmodat __NR_fchmodat
144
#define __NR_sys_fchownat __NR_fchownat
145
#define __NR_sys_getcwd1 __NR_getcwd
146
#define __NR_sys_getdents __NR_getdents
147
#define __NR_sys_getdents64 __NR_getdents64
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#define __NR_sys_getpriority __NR_getpriority
149
#define __NR_sys_linkat __NR_linkat
150
#define __NR_sys_mkdirat __NR_mkdirat
151
#define __NR_sys_mknodat __NR_mknodat
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#define __NR_sys_openat __NR_openat
153
#define __NR_sys_readlinkat __NR_readlinkat
154
#define __NR_sys_renameat __NR_renameat
155
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
156
#define __NR_sys_symlinkat __NR_symlinkat
157
#define __NR_sys_syslog __NR_syslog
158
#define __NR_sys_tgkill __NR_tgkill
159
#define __NR_sys_tkill __NR_tkill
160
#define __NR_sys_unlinkat __NR_unlinkat
161
#define __NR_sys_utimensat __NR_utimensat
162

    
163
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
164
#define __NR__llseek __NR_lseek
165
#endif
166

    
167
#ifdef __NR_gettid
168
_syscall0(int, gettid)
169
#else
170
static int gettid(void) {
171
    return -ENOSYS;
172
}
173
#endif
174
_syscall1(int,sys_uname,struct new_utsname *,buf)
175
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
176
_syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
177
#endif
178
#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
179
_syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
180
          mode_t,mode,int,flags)
181
#endif
182
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
183
_syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
184
          uid_t,owner,gid_t,group,int,flags)
185
#endif
186
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
187
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
188
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
189
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
190
#endif
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_syscall2(int, sys_getpriority, int, which, int, who);
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_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
193
          loff_t *, res, uint, wh);
194
#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
195
_syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
196
          int,newdirfd,const char *,newpath,int,flags)
197
#endif
198
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
199
_syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
200
#endif
201
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
202
_syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
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          mode_t,mode,dev_t,dev)
204
#endif
205
#if defined(TARGET_NR_openat) && defined(__NR_openat)
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_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
207
#endif
208
#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
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_syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
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          char *,buf,size_t,bufsize)
211
#endif
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#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
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_syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
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          int,newdirfd,const char *,newpath)
215
#endif
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_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
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#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
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_syscall3(int,sys_symlinkat,const char *,oldpath,
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          int,newdirfd,const char *,newpath)
220
#endif
221
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
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#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
223
_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
224
#endif
225
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
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_syscall2(int,sys_tkill,int,tid,int,sig)
227
#endif
228
#ifdef __NR_exit_group
229
_syscall1(int,exit_group,int,error_code)
230
#endif
231
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
232
_syscall1(int,set_tid_address,int *,tidptr)
233
#endif
234
#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
235
_syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
236
#endif
237
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
238
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
239
          const struct timespec *,tsp,int,flags)
240
#endif
241

    
242
extern int personality(int);
243
extern int flock(int, int);
244
extern int setfsuid(int);
245
extern int setfsgid(int);
246
extern int setresuid(uid_t, uid_t, uid_t);
247
extern int getresuid(uid_t *, uid_t *, uid_t *);
248
extern int setresgid(gid_t, gid_t, gid_t);
249
extern int getresgid(gid_t *, gid_t *, gid_t *);
250
extern int setgroups(int, gid_t *);
251

    
252
/*
253
 * This list is the union of errno values overridden in asm-<arch>/errno.h
254
 * minus the errnos that are not actually generic to all archs.
255
 */
256
static uint16_t host_to_target_errno_table[1200] = {
257
    [EIDRM]                = TARGET_EIDRM,
258
    [ECHRNG]                = TARGET_ECHRNG,
259
    [EL2NSYNC]                = TARGET_EL2NSYNC,
260
    [EL3HLT]                = TARGET_EL3HLT,
261
    [EL3RST]                = TARGET_EL3RST,
262
    [ELNRNG]                = TARGET_ELNRNG,
263
    [EUNATCH]                = TARGET_EUNATCH,
264
    [ENOCSI]                = TARGET_ENOCSI,
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    [EL2HLT]                = TARGET_EL2HLT,
266
    [EDEADLK]                = TARGET_EDEADLK,
267
    [ENOLCK]                = TARGET_ENOLCK,
268
    [EBADE]                = TARGET_EBADE,
269
    [EBADR]                = TARGET_EBADR,
270
    [EXFULL]                = TARGET_EXFULL,
271
    [ENOANO]                = TARGET_ENOANO,
272
    [EBADRQC]                = TARGET_EBADRQC,
273
    [EBADSLT]                = TARGET_EBADSLT,
274
    [EBFONT]                = TARGET_EBFONT,
275
    [ENOSTR]                = TARGET_ENOSTR,
276
    [ENODATA]                = TARGET_ENODATA,
277
    [ETIME]                = TARGET_ETIME,
278
    [ENOSR]                = TARGET_ENOSR,
279
    [ENONET]                = TARGET_ENONET,
280
    [ENOPKG]                = TARGET_ENOPKG,
281
    [EREMOTE]                = TARGET_EREMOTE,
282
    [ENOLINK]                = TARGET_ENOLINK,
283
    [EADV]                = TARGET_EADV,
284
    [ESRMNT]                = TARGET_ESRMNT,
285
    [ECOMM]                = TARGET_ECOMM,
286
    [EPROTO]                = TARGET_EPROTO,
287
    [EDOTDOT]                = TARGET_EDOTDOT,
288
    [EMULTIHOP]                = TARGET_EMULTIHOP,
289
    [EBADMSG]                = TARGET_EBADMSG,
290
    [ENAMETOOLONG]        = TARGET_ENAMETOOLONG,
291
    [EOVERFLOW]                = TARGET_EOVERFLOW,
292
    [ENOTUNIQ]                = TARGET_ENOTUNIQ,
293
    [EBADFD]                = TARGET_EBADFD,
294
    [EREMCHG]                = TARGET_EREMCHG,
295
    [ELIBACC]                = TARGET_ELIBACC,
296
    [ELIBBAD]                = TARGET_ELIBBAD,
297
    [ELIBSCN]                = TARGET_ELIBSCN,
298
    [ELIBMAX]                = TARGET_ELIBMAX,
299
    [ELIBEXEC]                = TARGET_ELIBEXEC,
300
    [EILSEQ]                = TARGET_EILSEQ,
301
    [ENOSYS]                = TARGET_ENOSYS,
302
    [ELOOP]                = TARGET_ELOOP,
303
    [ERESTART]                = TARGET_ERESTART,
304
    [ESTRPIPE]                = TARGET_ESTRPIPE,
305
    [ENOTEMPTY]                = TARGET_ENOTEMPTY,
306
    [EUSERS]                = TARGET_EUSERS,
307
    [ENOTSOCK]                = TARGET_ENOTSOCK,
308
    [EDESTADDRREQ]        = TARGET_EDESTADDRREQ,
309
    [EMSGSIZE]                = TARGET_EMSGSIZE,
310
    [EPROTOTYPE]        = TARGET_EPROTOTYPE,
311
    [ENOPROTOOPT]        = TARGET_ENOPROTOOPT,
312
    [EPROTONOSUPPORT]        = TARGET_EPROTONOSUPPORT,
313
    [ESOCKTNOSUPPORT]        = TARGET_ESOCKTNOSUPPORT,
314
    [EOPNOTSUPP]        = TARGET_EOPNOTSUPP,
315
    [EPFNOSUPPORT]        = TARGET_EPFNOSUPPORT,
316
    [EAFNOSUPPORT]        = TARGET_EAFNOSUPPORT,
317
    [EADDRINUSE]        = TARGET_EADDRINUSE,
318
    [EADDRNOTAVAIL]        = TARGET_EADDRNOTAVAIL,
319
    [ENETDOWN]                = TARGET_ENETDOWN,
320
    [ENETUNREACH]        = TARGET_ENETUNREACH,
321
    [ENETRESET]                = TARGET_ENETRESET,
322
    [ECONNABORTED]        = TARGET_ECONNABORTED,
323
    [ECONNRESET]        = TARGET_ECONNRESET,
324
    [ENOBUFS]                = TARGET_ENOBUFS,
325
    [EISCONN]                = TARGET_EISCONN,
326
    [ENOTCONN]                = TARGET_ENOTCONN,
327
    [EUCLEAN]                = TARGET_EUCLEAN,
328
    [ENOTNAM]                = TARGET_ENOTNAM,
329
    [ENAVAIL]                = TARGET_ENAVAIL,
330
    [EISNAM]                = TARGET_EISNAM,
331
    [EREMOTEIO]                = TARGET_EREMOTEIO,
332
    [ESHUTDOWN]                = TARGET_ESHUTDOWN,
333
    [ETOOMANYREFS]        = TARGET_ETOOMANYREFS,
334
    [ETIMEDOUT]                = TARGET_ETIMEDOUT,
335
    [ECONNREFUSED]        = TARGET_ECONNREFUSED,
336
    [EHOSTDOWN]                = TARGET_EHOSTDOWN,
337
    [EHOSTUNREACH]        = TARGET_EHOSTUNREACH,
338
    [EALREADY]                = TARGET_EALREADY,
339
    [EINPROGRESS]        = TARGET_EINPROGRESS,
340
    [ESTALE]                = TARGET_ESTALE,
341
    [ECANCELED]                = TARGET_ECANCELED,
342
    [ENOMEDIUM]                = TARGET_ENOMEDIUM,
343
    [EMEDIUMTYPE]        = TARGET_EMEDIUMTYPE,
344
#ifdef ENOKEY
345
    [ENOKEY]                = TARGET_ENOKEY,
346
#endif
347
#ifdef EKEYEXPIRED
348
    [EKEYEXPIRED]        = TARGET_EKEYEXPIRED,
349
#endif
350
#ifdef EKEYREVOKED
351
    [EKEYREVOKED]        = TARGET_EKEYREVOKED,
352
#endif
353
#ifdef EKEYREJECTED
354
    [EKEYREJECTED]        = TARGET_EKEYREJECTED,
355
#endif
356
#ifdef EOWNERDEAD
357
    [EOWNERDEAD]        = TARGET_EOWNERDEAD,
358
#endif
359
#ifdef ENOTRECOVERABLE
360
    [ENOTRECOVERABLE]        = TARGET_ENOTRECOVERABLE,
361
#endif
362
        };
363

    
364
static inline int host_to_target_errno(int err)
365
{
366
    if(host_to_target_errno_table[err])
367
        return host_to_target_errno_table[err];
368
    return err;
369
}
370

    
371
static inline target_long get_errno(target_long ret)
372
{
373
    if (ret == -1)
374
        return -host_to_target_errno(errno);
375
    else
376
        return ret;
377
}
378

    
379
static inline int is_error(target_long ret)
380
{
381
    return (target_ulong)ret >= (target_ulong)(-4096);
382
}
383

    
384
static target_ulong target_brk;
385
static target_ulong target_original_brk;
386

    
387
void target_set_brk(target_ulong new_brk)
388
{
389
    target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
390
}
391

    
392
target_long do_brk(target_ulong new_brk)
393
{
394
    target_ulong brk_page;
395
    target_long mapped_addr;
396
    int        new_alloc_size;
397

    
398
    if (!new_brk)
399
        return target_brk;
400
    if (new_brk < target_original_brk)
401
        return -ENOMEM;
402

    
403
    brk_page = HOST_PAGE_ALIGN(target_brk);
404

    
405
    /* If the new brk is less than this, set it and we're done... */
406
    if (new_brk < brk_page) {
407
        target_brk = new_brk;
408
            return target_brk;
409
    }
410

    
411
    /* We need to allocate more memory after the brk... */
412
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
413
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
414
                                        PROT_READ|PROT_WRITE,
415
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
416
    if (is_error(mapped_addr)) {
417
        return mapped_addr;
418
    } else {
419
        target_brk = new_brk;
420
            return target_brk;
421
    }
422
}
423

    
424
static inline fd_set *target_to_host_fds(fd_set *fds,
425
                                         target_long *target_fds, int n)
426
{
427
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
428
    return (fd_set *)target_fds;
429
#else
430
    int i, b;
431
    if (target_fds) {
432
        FD_ZERO(fds);
433
        for(i = 0;i < n; i++) {
434
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
435
                 (i & (TARGET_LONG_BITS - 1))) & 1;
436
            if (b)
437
                FD_SET(i, fds);
438
        }
439
        return fds;
440
    } else {
441
        return NULL;
442
    }
443
#endif
444
}
445

    
446
static inline void host_to_target_fds(target_long *target_fds,
447
                                      fd_set *fds, int n)
448
{
449
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
450
    /* nothing to do */
451
#else
452
    int i, nw, j, k;
453
    target_long v;
454

    
455
    if (target_fds) {
456
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
457
        k = 0;
458
        for(i = 0;i < nw; i++) {
459
            v = 0;
460
            for(j = 0; j < TARGET_LONG_BITS; j++) {
461
                v |= ((FD_ISSET(k, fds) != 0) << j);
462
                k++;
463
            }
464
            target_fds[i] = tswapl(v);
465
        }
466
    }
467
#endif
468
}
469

    
470
#if defined(__alpha__)
471
#define HOST_HZ 1024
472
#else
473
#define HOST_HZ 100
474
#endif
475

    
476
static inline target_long host_to_target_clock_t(long ticks)
477
{
478
#if HOST_HZ == TARGET_HZ
479
    return ticks;
480
#else
481
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
482
#endif
483
}
484

    
485
static inline void host_to_target_rusage(target_ulong target_addr,
486
                                         const struct rusage *rusage)
487
{
488
    struct target_rusage *target_rusage;
489

    
490
    lock_user_struct(target_rusage, target_addr, 0);
491
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
492
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
493
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
494
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
495
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
496
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
497
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
498
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
499
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
500
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
501
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
502
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
503
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
504
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
505
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
506
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
507
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
508
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
509
    unlock_user_struct(target_rusage, target_addr, 1);
510
}
511

    
512
static inline void target_to_host_timeval(struct timeval *tv,
513
                                          target_ulong target_addr)
514
{
515
    struct target_timeval *target_tv;
516

    
517
    lock_user_struct(target_tv, target_addr, 1);
518
    tv->tv_sec = tswapl(target_tv->tv_sec);
519
    tv->tv_usec = tswapl(target_tv->tv_usec);
520
    unlock_user_struct(target_tv, target_addr, 0);
521
}
522

    
523
static inline void host_to_target_timeval(target_ulong target_addr,
524
                                          const struct timeval *tv)
525
{
526
    struct target_timeval *target_tv;
527

    
528
    lock_user_struct(target_tv, target_addr, 0);
529
    target_tv->tv_sec = tswapl(tv->tv_sec);
530
    target_tv->tv_usec = tswapl(tv->tv_usec);
531
    unlock_user_struct(target_tv, target_addr, 1);
532
}
533

    
534

    
535
static target_long do_select(int n,
536
                             target_ulong rfd_p, target_ulong wfd_p,
537
                             target_ulong efd_p, target_ulong target_tv)
538
{
539
    fd_set rfds, wfds, efds;
540
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
541
    target_long *target_rfds, *target_wfds, *target_efds;
542
    struct timeval tv, *tv_ptr;
543
    target_long ret;
544
    int ok;
545

    
546
    if (rfd_p) {
547
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
548
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
549
    } else {
550
        target_rfds = NULL;
551
        rfds_ptr = NULL;
552
    }
553
    if (wfd_p) {
554
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
555
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
556
    } else {
557
        target_wfds = NULL;
558
        wfds_ptr = NULL;
559
    }
560
    if (efd_p) {
561
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
562
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
563
    } else {
564
        target_efds = NULL;
565
        efds_ptr = NULL;
566
    }
567

    
568
    if (target_tv) {
569
        target_to_host_timeval(&tv, target_tv);
570
        tv_ptr = &tv;
571
    } else {
572
        tv_ptr = NULL;
573
    }
574
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
575
    ok = !is_error(ret);
576

    
577
    if (ok) {
578
        host_to_target_fds(target_rfds, rfds_ptr, n);
579
        host_to_target_fds(target_wfds, wfds_ptr, n);
580
        host_to_target_fds(target_efds, efds_ptr, n);
581

    
582
        if (target_tv) {
583
            host_to_target_timeval(target_tv, &tv);
584
        }
585
    }
586
    if (target_rfds)
587
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
588
    if (target_wfds)
589
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
590
    if (target_efds)
591
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
592

    
593
    return ret;
594
}
595

    
596
static inline void target_to_host_sockaddr(struct sockaddr *addr,
597
                                           target_ulong target_addr,
598
                                           socklen_t len)
599
{
600
    struct target_sockaddr *target_saddr;
601

    
602
    target_saddr = lock_user(target_addr, len, 1);
603
    memcpy(addr, target_saddr, len);
604
    addr->sa_family = tswap16(target_saddr->sa_family);
605
    unlock_user(target_saddr, target_addr, 0);
606
}
607

    
608
static inline void host_to_target_sockaddr(target_ulong target_addr,
609
                                           struct sockaddr *addr,
610
                                           socklen_t len)
611
{
612
    struct target_sockaddr *target_saddr;
613

    
614
    target_saddr = lock_user(target_addr, len, 0);
615
    memcpy(target_saddr, addr, len);
616
    target_saddr->sa_family = tswap16(addr->sa_family);
617
    unlock_user(target_saddr, target_addr, len);
618
}
619

    
620
/* ??? Should this also swap msgh->name?  */
621
static inline void target_to_host_cmsg(struct msghdr *msgh,
622
                                       struct target_msghdr *target_msgh)
623
{
624
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
625
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
626
    socklen_t space = 0;
627

    
628
    while (cmsg && target_cmsg) {
629
        void *data = CMSG_DATA(cmsg);
630
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
631

    
632
        int len = tswapl(target_cmsg->cmsg_len)
633
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
634

    
635
        space += CMSG_SPACE(len);
636
        if (space > msgh->msg_controllen) {
637
            space -= CMSG_SPACE(len);
638
            gemu_log("Host cmsg overflow\n");
639
            break;
640
        }
641

    
642
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
643
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
644
        cmsg->cmsg_len = CMSG_LEN(len);
645

    
646
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
647
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
648
            memcpy(data, target_data, len);
649
        } else {
650
            int *fd = (int *)data;
651
            int *target_fd = (int *)target_data;
652
            int i, numfds = len / sizeof(int);
653

    
654
            for (i = 0; i < numfds; i++)
655
                fd[i] = tswap32(target_fd[i]);
656
        }
657

    
658
        cmsg = CMSG_NXTHDR(msgh, cmsg);
659
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
660
    }
661

    
662
    msgh->msg_controllen = space;
663
}
664

    
665
/* ??? Should this also swap msgh->name?  */
666
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
667
                                       struct msghdr *msgh)
668
{
669
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
670
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
671
    socklen_t space = 0;
672

    
673
    while (cmsg && target_cmsg) {
674
        void *data = CMSG_DATA(cmsg);
675
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
676

    
677
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
678

    
679
        space += TARGET_CMSG_SPACE(len);
680
        if (space > tswapl(target_msgh->msg_controllen)) {
681
            space -= TARGET_CMSG_SPACE(len);
682
            gemu_log("Target cmsg overflow\n");
683
            break;
684
        }
685

    
686
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
687
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
688
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
689

    
690
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
691
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
692
            memcpy(target_data, data, len);
693
        } else {
694
            int *fd = (int *)data;
695
            int *target_fd = (int *)target_data;
696
            int i, numfds = len / sizeof(int);
697

    
698
            for (i = 0; i < numfds; i++)
699
                target_fd[i] = tswap32(fd[i]);
700
        }
701

    
702
        cmsg = CMSG_NXTHDR(msgh, cmsg);
703
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
704
    }
705

    
706
    msgh->msg_controllen = tswapl(space);
707
}
708

    
709
static target_long do_setsockopt(int sockfd, int level, int optname,
710
                                 target_ulong optval, socklen_t optlen)
711
{
712
    target_long ret;
713
    int val;
714

    
715
    switch(level) {
716
    case SOL_TCP:
717
        /* TCP options all take an 'int' value.  */
718
        if (optlen < sizeof(uint32_t))
719
            return -EINVAL;
720

    
721
        val = tget32(optval);
722
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
723
        break;
724
    case SOL_IP:
725
        switch(optname) {
726
        case IP_TOS:
727
        case IP_TTL:
728
        case IP_HDRINCL:
729
        case IP_ROUTER_ALERT:
730
        case IP_RECVOPTS:
731
        case IP_RETOPTS:
732
        case IP_PKTINFO:
733
        case IP_MTU_DISCOVER:
734
        case IP_RECVERR:
735
        case IP_RECVTOS:
736
#ifdef IP_FREEBIND
737
        case IP_FREEBIND:
738
#endif
739
        case IP_MULTICAST_TTL:
740
        case IP_MULTICAST_LOOP:
741
            val = 0;
742
            if (optlen >= sizeof(uint32_t)) {
743
                val = tget32(optval);
744
            } else if (optlen >= 1) {
745
                val = tget8(optval);
746
            }
747
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
748
            break;
749
        default:
750
            goto unimplemented;
751
        }
752
        break;
753
    case TARGET_SOL_SOCKET:
754
        switch (optname) {
755
            /* Options with 'int' argument.  */
756
        case TARGET_SO_DEBUG:
757
                optname = SO_DEBUG;
758
                break;
759
        case TARGET_SO_REUSEADDR:
760
                optname = SO_REUSEADDR;
761
                break;
762
        case TARGET_SO_TYPE:
763
                optname = SO_TYPE;
764
                break;
765
        case TARGET_SO_ERROR:
766
                optname = SO_ERROR;
767
                break;
768
        case TARGET_SO_DONTROUTE:
769
                optname = SO_DONTROUTE;
770
                break;
771
        case TARGET_SO_BROADCAST:
772
                optname = SO_BROADCAST;
773
                break;
774
        case TARGET_SO_SNDBUF:
775
                optname = SO_SNDBUF;
776
                break;
777
        case TARGET_SO_RCVBUF:
778
                optname = SO_RCVBUF;
779
                break;
780
        case TARGET_SO_KEEPALIVE:
781
                optname = SO_KEEPALIVE;
782
                break;
783
        case TARGET_SO_OOBINLINE:
784
                optname = SO_OOBINLINE;
785
                break;
786
        case TARGET_SO_NO_CHECK:
787
                optname = SO_NO_CHECK;
788
                break;
789
        case TARGET_SO_PRIORITY:
790
                optname = SO_PRIORITY;
791
                break;
792
#ifdef SO_BSDCOMPAT
793
        case TARGET_SO_BSDCOMPAT:
794
                optname = SO_BSDCOMPAT;
795
                break;
796
#endif
797
        case TARGET_SO_PASSCRED:
798
                optname = SO_PASSCRED;
799
                break;
800
        case TARGET_SO_TIMESTAMP:
801
                optname = SO_TIMESTAMP;
802
                break;
803
        case TARGET_SO_RCVLOWAT:
804
                optname = SO_RCVLOWAT;
805
                break;
806
        case TARGET_SO_RCVTIMEO:
807
                optname = SO_RCVTIMEO;
808
                break;
809
        case TARGET_SO_SNDTIMEO:
810
                optname = SO_SNDTIMEO;
811
                break;
812
            break;
813
        default:
814
            goto unimplemented;
815
        }
816
        if (optlen < sizeof(uint32_t))
817
        return -EINVAL;
818

    
819
        val = tget32(optval);
820
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
821
        break;
822
    default:
823
    unimplemented:
824
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
825
        ret = -ENOSYS;
826
    }
827
    return ret;
828
}
829

    
830
static target_long do_getsockopt(int sockfd, int level, int optname,
831
                                 target_ulong optval, target_ulong optlen)
832
{
833
    target_long ret;
834
    int len, lv, val;
835

    
836
    switch(level) {
837
    case TARGET_SOL_SOCKET:
838
            level = SOL_SOCKET;
839
        switch (optname) {
840
        case TARGET_SO_LINGER:
841
        case TARGET_SO_RCVTIMEO:
842
        case TARGET_SO_SNDTIMEO:
843
        case TARGET_SO_PEERCRED:
844
        case TARGET_SO_PEERNAME:
845
            /* These don't just return a single integer */
846
            goto unimplemented;
847
        default:
848
            goto int_case;
849
        }
850
        break;
851
    case SOL_TCP:
852
        /* TCP options all take an 'int' value.  */
853
    int_case:
854
        len = tget32(optlen);
855
        if (len < 0)
856
            return -EINVAL;
857
        lv = sizeof(int);
858
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
859
        if (ret < 0)
860
            return ret;
861
        val = tswap32(val);
862
        if (len > lv)
863
            len = lv;
864
        if (len == 4)
865
            tput32(optval, val);
866
        else
867
            tput8(optval, val);
868
        tput32(optlen, len);
869
        break;
870
    case SOL_IP:
871
        switch(optname) {
872
        case IP_TOS:
873
        case IP_TTL:
874
        case IP_HDRINCL:
875
        case IP_ROUTER_ALERT:
876
        case IP_RECVOPTS:
877
        case IP_RETOPTS:
878
        case IP_PKTINFO:
879
        case IP_MTU_DISCOVER:
880
        case IP_RECVERR:
881
        case IP_RECVTOS:
882
#ifdef IP_FREEBIND
883
        case IP_FREEBIND:
884
#endif
885
        case IP_MULTICAST_TTL:
886
        case IP_MULTICAST_LOOP:
887
            len = tget32(optlen);
888
            if (len < 0)
889
                return -EINVAL;
890
            lv = sizeof(int);
891
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
892
            if (ret < 0)
893
                return ret;
894
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
895
                len = 1;
896
                tput32(optlen, len);
897
                tput8(optval, val);
898
            } else {
899
                if (len > sizeof(int))
900
                    len = sizeof(int);
901
                tput32(optlen, len);
902
                tput32(optval, val);
903
            }
904
            break;
905
        default:
906
            goto unimplemented;
907
        }
908
        break;
909
    default:
910
    unimplemented:
911
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
912
                 level, optname);
913
        ret = -ENOSYS;
914
        break;
915
    }
916
    return ret;
917
}
918

    
919
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
920
                       int count, int copy)
921
{
922
    struct target_iovec *target_vec;
923
    target_ulong base;
924
    int i;
925

    
926
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
927
    for(i = 0;i < count; i++) {
928
        base = tswapl(target_vec[i].iov_base);
929
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
930
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
931
    }
932
    unlock_user (target_vec, target_addr, 0);
933
}
934

    
935
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
936
                         int count, int copy)
937
{
938
    struct target_iovec *target_vec;
939
    target_ulong base;
940
    int i;
941

    
942
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
943
    for(i = 0;i < count; i++) {
944
        base = tswapl(target_vec[i].iov_base);
945
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
946
    }
947
    unlock_user (target_vec, target_addr, 0);
948
}
949

    
950
static target_long do_socket(int domain, int type, int protocol)
951
{
952
#if defined(TARGET_MIPS)
953
    switch(type) {
954
    case TARGET_SOCK_DGRAM:
955
        type = SOCK_DGRAM;
956
        break;
957
    case TARGET_SOCK_STREAM:
958
        type = SOCK_STREAM;
959
        break;
960
    case TARGET_SOCK_RAW:
961
        type = SOCK_RAW;
962
        break;
963
    case TARGET_SOCK_RDM:
964
        type = SOCK_RDM;
965
        break;
966
    case TARGET_SOCK_SEQPACKET:
967
        type = SOCK_SEQPACKET;
968
        break;
969
    case TARGET_SOCK_PACKET:
970
        type = SOCK_PACKET;
971
        break;
972
    }
973
#endif
974
    return get_errno(socket(domain, type, protocol));
975
}
976

    
977
static target_long do_bind(int sockfd, target_ulong target_addr,
978
                           socklen_t addrlen)
979
{
980
    void *addr = alloca(addrlen);
981

    
982
    target_to_host_sockaddr(addr, target_addr, addrlen);
983
    return get_errno(bind(sockfd, addr, addrlen));
984
}
985

    
986
static target_long do_connect(int sockfd, target_ulong target_addr,
987
                              socklen_t addrlen)
988
{
989
    void *addr = alloca(addrlen);
990

    
991
    target_to_host_sockaddr(addr, target_addr, addrlen);
992
    return get_errno(connect(sockfd, addr, addrlen));
993
}
994

    
995
static target_long do_sendrecvmsg(int fd, target_ulong target_msg,
996
                                  int flags, int send)
997
{
998
    target_long ret;
999
    struct target_msghdr *msgp;
1000
    struct msghdr msg;
1001
    int count;
1002
    struct iovec *vec;
1003
    target_ulong target_vec;
1004

    
1005
    lock_user_struct(msgp, target_msg, 1);
1006
    if (msgp->msg_name) {
1007
        msg.msg_namelen = tswap32(msgp->msg_namelen);
1008
        msg.msg_name = alloca(msg.msg_namelen);
1009
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1010
                                msg.msg_namelen);
1011
    } else {
1012
        msg.msg_name = NULL;
1013
        msg.msg_namelen = 0;
1014
    }
1015
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1016
    msg.msg_control = alloca(msg.msg_controllen);
1017
    msg.msg_flags = tswap32(msgp->msg_flags);
1018

    
1019
    count = tswapl(msgp->msg_iovlen);
1020
    vec = alloca(count * sizeof(struct iovec));
1021
    target_vec = tswapl(msgp->msg_iov);
1022
    lock_iovec(vec, target_vec, count, send);
1023
    msg.msg_iovlen = count;
1024
    msg.msg_iov = vec;
1025

    
1026
    if (send) {
1027
        target_to_host_cmsg(&msg, msgp);
1028
        ret = get_errno(sendmsg(fd, &msg, flags));
1029
    } else {
1030
        ret = get_errno(recvmsg(fd, &msg, flags));
1031
        if (!is_error(ret))
1032
            host_to_target_cmsg(msgp, &msg);
1033
    }
1034
    unlock_iovec(vec, target_vec, count, !send);
1035
    return ret;
1036
}
1037

    
1038
static target_long do_accept(int fd, target_ulong target_addr,
1039
                             target_ulong target_addrlen)
1040
{
1041
    socklen_t addrlen = tget32(target_addrlen);
1042
    void *addr = alloca(addrlen);
1043
    target_long ret;
1044

    
1045
    ret = get_errno(accept(fd, addr, &addrlen));
1046
    if (!is_error(ret)) {
1047
        host_to_target_sockaddr(target_addr, addr, addrlen);
1048
        tput32(target_addrlen, addrlen);
1049
    }
1050
    return ret;
1051
}
1052

    
1053
static target_long do_getpeername(int fd, target_ulong target_addr,
1054
                                  target_ulong target_addrlen)
1055
{
1056
    socklen_t addrlen = tget32(target_addrlen);
1057
    void *addr = alloca(addrlen);
1058
    target_long ret;
1059

    
1060
    ret = get_errno(getpeername(fd, addr, &addrlen));
1061
    if (!is_error(ret)) {
1062
        host_to_target_sockaddr(target_addr, addr, addrlen);
1063
        tput32(target_addrlen, addrlen);
1064
    }
1065
    return ret;
1066
}
1067

    
1068
static target_long do_getsockname(int fd, target_ulong target_addr,
1069
                                  target_ulong target_addrlen)
1070
{
1071
    socklen_t addrlen = tget32(target_addrlen);
1072
    void *addr = alloca(addrlen);
1073
    target_long ret;
1074

    
1075
    ret = get_errno(getsockname(fd, addr, &addrlen));
1076
    if (!is_error(ret)) {
1077
        host_to_target_sockaddr(target_addr, addr, addrlen);
1078
        tput32(target_addrlen, addrlen);
1079
    }
1080
    return ret;
1081
}
1082

    
1083
static target_long do_socketpair(int domain, int type, int protocol,
1084
                                 target_ulong target_tab)
1085
{
1086
    int tab[2];
1087
    target_long ret;
1088

    
1089
    ret = get_errno(socketpair(domain, type, protocol, tab));
1090
    if (!is_error(ret)) {
1091
        tput32(target_tab, tab[0]);
1092
        tput32(target_tab + 4, tab[1]);
1093
    }
1094
    return ret;
1095
}
1096

    
1097
static target_long do_sendto(int fd, target_ulong msg, size_t len, int flags,
1098
                             target_ulong target_addr, socklen_t addrlen)
1099
{
1100
    void *addr;
1101
    void *host_msg;
1102
    target_long ret;
1103

    
1104
    host_msg = lock_user(msg, len, 1);
1105
    if (target_addr) {
1106
        addr = alloca(addrlen);
1107
        target_to_host_sockaddr(addr, target_addr, addrlen);
1108
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1109
    } else {
1110
        ret = get_errno(send(fd, host_msg, len, flags));
1111
    }
1112
    unlock_user(host_msg, msg, 0);
1113
    return ret;
1114
}
1115

    
1116
static target_long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
1117
                               target_ulong target_addr,
1118
                               target_ulong target_addrlen)
1119
{
1120
    socklen_t addrlen;
1121
    void *addr;
1122
    void *host_msg;
1123
    target_long ret;
1124

    
1125
    host_msg = lock_user(msg, len, 0);
1126
    if (target_addr) {
1127
        addrlen = tget32(target_addrlen);
1128
        addr = alloca(addrlen);
1129
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1130
    } else {
1131
        addr = NULL; /* To keep compiler quiet.  */
1132
        ret = get_errno(recv(fd, host_msg, len, flags));
1133
    }
1134
    if (!is_error(ret)) {
1135
        if (target_addr) {
1136
            host_to_target_sockaddr(target_addr, addr, addrlen);
1137
            tput32(target_addrlen, addrlen);
1138
        }
1139
        unlock_user(host_msg, msg, len);
1140
    } else {
1141
        unlock_user(host_msg, msg, 0);
1142
    }
1143
    return ret;
1144
}
1145

    
1146
#ifdef TARGET_NR_socketcall
1147
static target_long do_socketcall(int num, target_ulong vptr)
1148
{
1149
    target_long ret;
1150
    const int n = sizeof(target_ulong);
1151

    
1152
    switch(num) {
1153
    case SOCKOP_socket:
1154
        {
1155
            int domain = tgetl(vptr);
1156
            int type = tgetl(vptr + n);
1157
            int protocol = tgetl(vptr + 2 * n);
1158
            ret = do_socket(domain, type, protocol);
1159
        }
1160
        break;
1161
    case SOCKOP_bind:
1162
        {
1163
            int sockfd = tgetl(vptr);
1164
            target_ulong target_addr = tgetl(vptr + n);
1165
            socklen_t addrlen = tgetl(vptr + 2 * n);
1166
            ret = do_bind(sockfd, target_addr, addrlen);
1167
        }
1168
        break;
1169
    case SOCKOP_connect:
1170
        {
1171
            int sockfd = tgetl(vptr);
1172
            target_ulong target_addr = tgetl(vptr + n);
1173
            socklen_t addrlen = tgetl(vptr + 2 * n);
1174
            ret = do_connect(sockfd, target_addr, addrlen);
1175
        }
1176
        break;
1177
    case SOCKOP_listen:
1178
        {
1179
            int sockfd = tgetl(vptr);
1180
            int backlog = tgetl(vptr + n);
1181
            ret = get_errno(listen(sockfd, backlog));
1182
        }
1183
        break;
1184
    case SOCKOP_accept:
1185
        {
1186
            int sockfd = tgetl(vptr);
1187
            target_ulong target_addr = tgetl(vptr + n);
1188
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1189
            ret = do_accept(sockfd, target_addr, target_addrlen);
1190
        }
1191
        break;
1192
    case SOCKOP_getsockname:
1193
        {
1194
            int sockfd = tgetl(vptr);
1195
            target_ulong target_addr = tgetl(vptr + n);
1196
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1197
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
1198
        }
1199
        break;
1200
    case SOCKOP_getpeername:
1201
        {
1202
            int sockfd = tgetl(vptr);
1203
            target_ulong target_addr = tgetl(vptr + n);
1204
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1205
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1206
        }
1207
        break;
1208
    case SOCKOP_socketpair:
1209
        {
1210
            int domain = tgetl(vptr);
1211
            int type = tgetl(vptr + n);
1212
            int protocol = tgetl(vptr + 2 * n);
1213
            target_ulong tab = tgetl(vptr + 3 * n);
1214
            ret = do_socketpair(domain, type, protocol, tab);
1215
        }
1216
        break;
1217
    case SOCKOP_send:
1218
        {
1219
            int sockfd = tgetl(vptr);
1220
            target_ulong msg = tgetl(vptr + n);
1221
            size_t len = tgetl(vptr + 2 * n);
1222
            int flags = tgetl(vptr + 3 * n);
1223
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1224
        }
1225
        break;
1226
    case SOCKOP_recv:
1227
        {
1228
            int sockfd = tgetl(vptr);
1229
            target_ulong msg = tgetl(vptr + n);
1230
            size_t len = tgetl(vptr + 2 * n);
1231
            int flags = tgetl(vptr + 3 * n);
1232
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1233
        }
1234
        break;
1235
    case SOCKOP_sendto:
1236
        {
1237
            int sockfd = tgetl(vptr);
1238
            target_ulong msg = tgetl(vptr + n);
1239
            size_t len = tgetl(vptr + 2 * n);
1240
            int flags = tgetl(vptr + 3 * n);
1241
            target_ulong addr = tgetl(vptr + 4 * n);
1242
            socklen_t addrlen = tgetl(vptr + 5 * n);
1243
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1244
        }
1245
        break;
1246
    case SOCKOP_recvfrom:
1247
        {
1248
            int sockfd = tgetl(vptr);
1249
            target_ulong msg = tgetl(vptr + n);
1250
            size_t len = tgetl(vptr + 2 * n);
1251
            int flags = tgetl(vptr + 3 * n);
1252
            target_ulong addr = tgetl(vptr + 4 * n);
1253
            target_ulong addrlen = tgetl(vptr + 5 * n);
1254
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1255
        }
1256
        break;
1257
    case SOCKOP_shutdown:
1258
        {
1259
            int sockfd = tgetl(vptr);
1260
            int how = tgetl(vptr + n);
1261

    
1262
            ret = get_errno(shutdown(sockfd, how));
1263
        }
1264
        break;
1265
    case SOCKOP_sendmsg:
1266
    case SOCKOP_recvmsg:
1267
        {
1268
            int fd;
1269
            target_ulong target_msg;
1270
            int flags;
1271

    
1272
            fd = tgetl(vptr);
1273
            target_msg = tgetl(vptr + n);
1274
            flags = tgetl(vptr + 2 * n);
1275

    
1276
            ret = do_sendrecvmsg(fd, target_msg, flags,
1277
                                 (num == SOCKOP_sendmsg));
1278
        }
1279
        break;
1280
    case SOCKOP_setsockopt:
1281
        {
1282
            int sockfd = tgetl(vptr);
1283
            int level = tgetl(vptr + n);
1284
            int optname = tgetl(vptr + 2 * n);
1285
            target_ulong optval = tgetl(vptr + 3 * n);
1286
            socklen_t optlen = tgetl(vptr + 4 * n);
1287

    
1288
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1289
        }
1290
        break;
1291
    case SOCKOP_getsockopt:
1292
        {
1293
            int sockfd = tgetl(vptr);
1294
            int level = tgetl(vptr + n);
1295
            int optname = tgetl(vptr + 2 * n);
1296
            target_ulong optval = tgetl(vptr + 3 * n);
1297
            target_ulong poptlen = tgetl(vptr + 4 * n);
1298

    
1299
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1300
        }
1301
        break;
1302
    default:
1303
        gemu_log("Unsupported socketcall: %d\n", num);
1304
        ret = -ENOSYS;
1305
        break;
1306
    }
1307
    return ret;
1308
}
1309
#endif
1310

    
1311
#ifdef TARGET_NR_ipc
1312
#define N_SHM_REGIONS        32
1313

    
1314
static struct shm_region {
1315
    uint32_t        start;
1316
    uint32_t        size;
1317
} shm_regions[N_SHM_REGIONS];
1318

    
1319
struct target_ipc_perm
1320
{
1321
    target_long __key;
1322
    target_ulong uid;
1323
    target_ulong gid;
1324
    target_ulong cuid;
1325
    target_ulong cgid;
1326
    unsigned short int mode;
1327
    unsigned short int __pad1;
1328
    unsigned short int __seq;
1329
    unsigned short int __pad2;
1330
    target_ulong __unused1;
1331
    target_ulong __unused2;
1332
};
1333

    
1334
struct target_semid_ds
1335
{
1336
  struct target_ipc_perm sem_perm;
1337
  target_ulong sem_otime;
1338
  target_ulong __unused1;
1339
  target_ulong sem_ctime;
1340
  target_ulong __unused2;
1341
  target_ulong sem_nsems;
1342
  target_ulong __unused3;
1343
  target_ulong __unused4;
1344
};
1345

    
1346
static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip,
1347
                                           target_ulong target_addr)
1348
{
1349
    struct target_ipc_perm *target_ip;
1350
    struct target_semid_ds *target_sd;
1351

    
1352
    lock_user_struct(target_sd, target_addr, 1);
1353
    target_ip=&(target_sd->sem_perm);
1354
    host_ip->__key = tswapl(target_ip->__key);
1355
    host_ip->uid = tswapl(target_ip->uid);
1356
    host_ip->gid = tswapl(target_ip->gid);
1357
    host_ip->cuid = tswapl(target_ip->cuid);
1358
    host_ip->cgid = tswapl(target_ip->cgid);
1359
    host_ip->mode = tswapl(target_ip->mode);
1360
    unlock_user_struct(target_sd, target_addr, 0);
1361
}
1362

    
1363
static inline void host_to_target_ipc_perm(target_ulong target_addr,
1364
                                           struct ipc_perm *host_ip)
1365
{
1366
    struct target_ipc_perm *target_ip;
1367
    struct target_semid_ds *target_sd;
1368

    
1369
    lock_user_struct(target_sd, target_addr, 0);
1370
    target_ip = &(target_sd->sem_perm);
1371
    target_ip->__key = tswapl(host_ip->__key);
1372
    target_ip->uid = tswapl(host_ip->uid);
1373
    target_ip->gid = tswapl(host_ip->gid);
1374
    target_ip->cuid = tswapl(host_ip->cuid);
1375
    target_ip->cgid = tswapl(host_ip->cgid);
1376
    target_ip->mode = tswapl(host_ip->mode);
1377
    unlock_user_struct(target_sd, target_addr, 1);
1378
}
1379

    
1380
static inline void target_to_host_semid_ds(struct semid_ds *host_sd,
1381
                                          target_ulong target_addr)
1382
{
1383
    struct target_semid_ds *target_sd;
1384

    
1385
    lock_user_struct(target_sd, target_addr, 1);
1386
    target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
1387
    host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
1388
    host_sd->sem_otime = tswapl(target_sd->sem_otime);
1389
    host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
1390
    unlock_user_struct(target_sd, target_addr, 0);
1391
}
1392

    
1393
static inline void host_to_target_semid_ds(target_ulong target_addr,
1394
                                           struct semid_ds *host_sd)
1395
{
1396
    struct target_semid_ds *target_sd;
1397

    
1398
    lock_user_struct(target_sd, target_addr, 0);
1399
    host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
1400
    target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
1401
    target_sd->sem_otime = tswapl(host_sd->sem_otime);
1402
    target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
1403
    unlock_user_struct(target_sd, target_addr, 1);
1404
}
1405

    
1406
union semun {
1407
        int val;
1408
        struct semid_ds *buf;
1409
        unsigned short *array;
1410
};
1411

    
1412
union target_semun {
1413
        int val;
1414
        target_long buf;
1415
        unsigned short int *array;
1416
};
1417

    
1418
static inline void target_to_host_semun(int cmd,
1419
                                        union semun *host_su,
1420
                                        target_ulong target_addr,
1421
                                        struct semid_ds *ds)
1422
{
1423
    union target_semun *target_su;
1424

    
1425
    switch( cmd ) {
1426
        case IPC_STAT:
1427
        case IPC_SET:
1428
           lock_user_struct(target_su, target_addr, 1);
1429
           target_to_host_semid_ds(ds,target_su->buf);
1430
           host_su->buf = ds;
1431
           unlock_user_struct(target_su, target_addr, 0);
1432
           break;
1433
        case GETVAL:
1434
        case SETVAL:
1435
           lock_user_struct(target_su, target_addr, 1);
1436
           host_su->val = tswapl(target_su->val);
1437
           unlock_user_struct(target_su, target_addr, 0);
1438
           break;
1439
        case GETALL:
1440
        case SETALL:
1441
           lock_user_struct(target_su, target_addr, 1);
1442
           *host_su->array = tswap16(*target_su->array);
1443
           unlock_user_struct(target_su, target_addr, 0);
1444
           break;
1445
        default:
1446
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1447
    }
1448
}
1449

    
1450
static inline void host_to_target_semun(int cmd,
1451
                                        target_ulong target_addr,
1452
                                        union semun *host_su,
1453
                                        struct semid_ds *ds)
1454
{
1455
    union target_semun *target_su;
1456

    
1457
    switch( cmd ) {
1458
        case IPC_STAT:
1459
        case IPC_SET:
1460
           lock_user_struct(target_su, target_addr, 0);
1461
           host_to_target_semid_ds(target_su->buf,ds);
1462
           unlock_user_struct(target_su, target_addr, 1);
1463
           break;
1464
        case GETVAL:
1465
        case SETVAL:
1466
           lock_user_struct(target_su, target_addr, 0);
1467
           target_su->val = tswapl(host_su->val);
1468
           unlock_user_struct(target_su, target_addr, 1);
1469
           break;
1470
        case GETALL:
1471
        case SETALL:
1472
           lock_user_struct(target_su, target_addr, 0);
1473
           *target_su->array = tswap16(*host_su->array);
1474
           unlock_user_struct(target_su, target_addr, 1);
1475
           break;
1476
        default:
1477
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1478
    }
1479
}
1480

    
1481
static inline target_long do_semctl(int first, int second, int third,
1482
                                    target_long ptr)
1483
{
1484
    union semun arg;
1485
    struct semid_ds dsarg;
1486
    int cmd = third&0xff;
1487
    target_long ret = 0;
1488

    
1489
    switch( cmd ) {
1490
        case GETVAL:
1491
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1492
            ret = get_errno(semctl(first, second, cmd, arg));
1493
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1494
            break;
1495
        case SETVAL:
1496
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1497
            ret = get_errno(semctl(first, second, cmd, arg));
1498
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1499
            break;
1500
        case GETALL:
1501
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1502
            ret = get_errno(semctl(first, second, cmd, arg));
1503
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1504
            break;
1505
        case SETALL:
1506
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1507
            ret = get_errno(semctl(first, second, cmd, arg));
1508
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1509
            break;
1510
        case IPC_STAT:
1511
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1512
            ret = get_errno(semctl(first, second, cmd, arg));
1513
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1514
            break;
1515
        case IPC_SET:
1516
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1517
            ret = get_errno(semctl(first, second, cmd, arg));
1518
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1519
            break;
1520
    default:
1521
            ret = get_errno(semctl(first, second, cmd, arg));
1522
    }
1523

    
1524
    return ret;
1525
}
1526

    
1527
struct target_msqid_ds
1528
{
1529
  struct target_ipc_perm msg_perm;
1530
  target_ulong msg_stime;
1531
  target_ulong __unused1;
1532
  target_ulong msg_rtime;
1533
  target_ulong __unused2;
1534
  target_ulong msg_ctime;
1535
  target_ulong __unused3;
1536
  target_ulong __msg_cbytes;
1537
  target_ulong msg_qnum;
1538
  target_ulong msg_qbytes;
1539
  target_ulong msg_lspid;
1540
  target_ulong msg_lrpid;
1541
  target_ulong __unused4;
1542
  target_ulong __unused5;
1543
};
1544

    
1545
static inline void target_to_host_msqid_ds(struct msqid_ds *host_md,
1546
                                           target_ulong target_addr)
1547
{
1548
    struct target_msqid_ds *target_md;
1549

    
1550
    lock_user_struct(target_md, target_addr, 1);
1551
    target_to_host_ipc_perm(&(host_md->msg_perm),target_addr);
1552
    host_md->msg_stime = tswapl(target_md->msg_stime);
1553
    host_md->msg_rtime = tswapl(target_md->msg_rtime);
1554
    host_md->msg_ctime = tswapl(target_md->msg_ctime);
1555
    host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
1556
    host_md->msg_qnum = tswapl(target_md->msg_qnum);
1557
    host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
1558
    host_md->msg_lspid = tswapl(target_md->msg_lspid);
1559
    host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
1560
    unlock_user_struct(target_md, target_addr, 0);
1561
}
1562

    
1563
static inline void host_to_target_msqid_ds(target_ulong target_addr,
1564
                                           struct msqid_ds *host_md)
1565
{
1566
    struct target_msqid_ds *target_md;
1567

    
1568
    lock_user_struct(target_md, target_addr, 0);
1569
    host_to_target_ipc_perm(target_addr,&(host_md->msg_perm));
1570
    target_md->msg_stime = tswapl(host_md->msg_stime);
1571
    target_md->msg_rtime = tswapl(host_md->msg_rtime);
1572
    target_md->msg_ctime = tswapl(host_md->msg_ctime);
1573
    target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
1574
    target_md->msg_qnum = tswapl(host_md->msg_qnum);
1575
    target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
1576
    target_md->msg_lspid = tswapl(host_md->msg_lspid);
1577
    target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
1578
    unlock_user_struct(target_md, target_addr, 1);
1579
}
1580

    
1581
static inline target_long do_msgctl(int first, int second, target_long ptr)
1582
{
1583
    struct msqid_ds dsarg;
1584
    int cmd = second&0xff;
1585
    target_long ret = 0;
1586
    switch( cmd ) {
1587
    case IPC_STAT:
1588
    case IPC_SET:
1589
        target_to_host_msqid_ds(&dsarg,ptr);
1590
        ret = get_errno(msgctl(first, cmd, &dsarg));
1591
        host_to_target_msqid_ds(ptr,&dsarg);
1592
    default:
1593
        ret = get_errno(msgctl(first, cmd, &dsarg));
1594
    }
1595
    return ret;
1596
}
1597

    
1598
struct target_msgbuf {
1599
        target_ulong mtype;
1600
        char        mtext[1];
1601
};
1602

    
1603
static inline target_long do_msgsnd(int msqid, target_long msgp,
1604
                                    unsigned int msgsz, int msgflg)
1605
{
1606
    struct target_msgbuf *target_mb;
1607
    struct msgbuf *host_mb;
1608
    target_long ret = 0;
1609

    
1610
    lock_user_struct(target_mb,msgp,0);
1611
    host_mb = malloc(msgsz+sizeof(long));
1612
    host_mb->mtype = tswapl(target_mb->mtype);
1613
    memcpy(host_mb->mtext,target_mb->mtext,msgsz);
1614
    ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
1615
    free(host_mb);
1616
    unlock_user_struct(target_mb, msgp, 0);
1617

    
1618
    return ret;
1619
}
1620

    
1621
static inline target_long do_msgrcv(int msqid, target_long msgp,
1622
                                    unsigned int msgsz, int msgtype,
1623
                                    int msgflg)
1624
{
1625
    struct target_msgbuf *target_mb;
1626
    struct msgbuf *host_mb;
1627
    target_long ret = 0;
1628

    
1629
    lock_user_struct(target_mb, msgp, 0);
1630
    host_mb = malloc(msgsz+sizeof(long));
1631
    ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg));
1632
    if (ret > 0)
1633
            memcpy(target_mb->mtext, host_mb->mtext, ret);
1634
    target_mb->mtype = tswapl(host_mb->mtype);
1635
    free(host_mb);
1636
    unlock_user_struct(target_mb, msgp, 0);
1637

    
1638
    return ret;
1639
}
1640

    
1641
/* ??? This only works with linear mappings.  */
1642
static target_long do_ipc(unsigned int call, int first,
1643
                          int second, int third,
1644
                          target_long ptr, target_long fifth)
1645
{
1646
    int version;
1647
    target_long ret = 0;
1648
    unsigned long raddr;
1649
    struct shmid_ds shm_info;
1650
    int i;
1651

    
1652
    version = call >> 16;
1653
    call &= 0xffff;
1654

    
1655
    switch (call) {
1656
    case IPCOP_semop:
1657
        ret = get_errno(semop(first,(struct sembuf *) ptr, second));
1658
        break;
1659

    
1660
    case IPCOP_semget:
1661
        ret = get_errno(semget(first, second, third));
1662
        break;
1663

    
1664
    case IPCOP_semctl:
1665
        ret = do_semctl(first, second, third, ptr);
1666
        break;
1667

    
1668
    case IPCOP_semtimedop:
1669
        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
1670
        ret = -ENOSYS;
1671
        break;
1672

    
1673
        case IPCOP_msgget:
1674
                ret = get_errno(msgget(first, second));
1675
                break;
1676

    
1677
        case IPCOP_msgsnd:
1678
                ret = do_msgsnd(first, ptr, second, third);
1679
                break;
1680

    
1681
        case IPCOP_msgctl:
1682
                ret = do_msgctl(first, second, ptr);
1683
                break;
1684

    
1685
        case IPCOP_msgrcv:
1686
                {
1687
                      struct ipc_kludge
1688
                      {
1689
                              void *__unbounded msgp;
1690
                              long int msgtyp;
1691
                      };
1692

    
1693
                      struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
1694
                      struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1695

    
1696
                      ret = do_msgrcv(first, (long)msgp, second, 0, third);
1697

    
1698
                }
1699
                break;
1700

    
1701
    case IPCOP_shmat:
1702
        /* SHM_* flags are the same on all linux platforms */
1703
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1704
        if (is_error(ret))
1705
            break;
1706
        raddr = ret;
1707
        /* find out the length of the shared memory segment */
1708

    
1709
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1710
        if (is_error(ret)) {
1711
            /* can't get length, bail out */
1712
            shmdt((void *) raddr);
1713
            break;
1714
        }
1715
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1716
                       PAGE_VALID | PAGE_READ |
1717
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1718
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1719
            if (shm_regions[i].start == 0) {
1720
                shm_regions[i].start = raddr;
1721
                shm_regions[i].size = shm_info.shm_segsz;
1722
                break;
1723
            }
1724
        }
1725
        if (put_user(raddr, (target_ulong *)third))
1726
            return -EFAULT;
1727
        ret = 0;
1728
        break;
1729
    case IPCOP_shmdt:
1730
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1731
            if (shm_regions[i].start == ptr) {
1732
                shm_regions[i].start = 0;
1733
                page_set_flags(ptr, shm_regions[i].size, 0);
1734
                break;
1735
            }
1736
        }
1737
        ret = get_errno(shmdt((void *) ptr));
1738
        break;
1739

    
1740
    case IPCOP_shmget:
1741
        /* IPC_* flag values are the same on all linux platforms */
1742
        ret = get_errno(shmget(first, second, third));
1743
        break;
1744

    
1745
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1746
    case IPCOP_shmctl:
1747
        switch(second) {
1748
        case IPC_RMID:
1749
        case SHM_LOCK:
1750
        case SHM_UNLOCK:
1751
            ret = get_errno(shmctl(first, second, NULL));
1752
            break;
1753
        default:
1754
            goto unimplemented;
1755
        }
1756
        break;
1757
    default:
1758
    unimplemented:
1759
        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
1760
        ret = -ENOSYS;
1761
        break;
1762
    }
1763
    return ret;
1764
}
1765
#endif
1766

    
1767
/* kernel structure types definitions */
1768
#define IFNAMSIZ        16
1769

    
1770
#define STRUCT(name, list...) STRUCT_ ## name,
1771
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1772
enum {
1773
#include "syscall_types.h"
1774
};
1775
#undef STRUCT
1776
#undef STRUCT_SPECIAL
1777

    
1778
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1779
#define STRUCT_SPECIAL(name)
1780
#include "syscall_types.h"
1781
#undef STRUCT
1782
#undef STRUCT_SPECIAL
1783

    
1784
typedef struct IOCTLEntry {
1785
    unsigned int target_cmd;
1786
    unsigned int host_cmd;
1787
    const char *name;
1788
    int access;
1789
    const argtype arg_type[5];
1790
} IOCTLEntry;
1791

    
1792
#define IOC_R 0x0001
1793
#define IOC_W 0x0002
1794
#define IOC_RW (IOC_R | IOC_W)
1795

    
1796
#define MAX_STRUCT_SIZE 4096
1797

    
1798
IOCTLEntry ioctl_entries[] = {
1799
#define IOCTL(cmd, access, types...) \
1800
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1801
#include "ioctls.h"
1802
    { 0, 0, },
1803
};
1804

    
1805
/* ??? Implement proper locking for ioctls.  */
1806
static target_long do_ioctl(int fd, target_long cmd, target_long arg)
1807
{
1808
    const IOCTLEntry *ie;
1809
    const argtype *arg_type;
1810
    target_long ret;
1811
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1812
    int target_size;
1813
    void *argptr;
1814

    
1815
    ie = ioctl_entries;
1816
    for(;;) {
1817
        if (ie->target_cmd == 0) {
1818
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
1819
            return -ENOSYS;
1820
        }
1821
        if (ie->target_cmd == cmd)
1822
            break;
1823
        ie++;
1824
    }
1825
    arg_type = ie->arg_type;
1826
#if defined(DEBUG)
1827
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
1828
#endif
1829
    switch(arg_type[0]) {
1830
    case TYPE_NULL:
1831
        /* no argument */
1832
        ret = get_errno(ioctl(fd, ie->host_cmd));
1833
        break;
1834
    case TYPE_PTRVOID:
1835
    case TYPE_INT:
1836
        /* int argment */
1837
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1838
        break;
1839
    case TYPE_PTR:
1840
        arg_type++;
1841
        target_size = thunk_type_size(arg_type, 0);
1842
        switch(ie->access) {
1843
        case IOC_R:
1844
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1845
            if (!is_error(ret)) {
1846
                argptr = lock_user(arg, target_size, 0);
1847
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1848
                unlock_user(argptr, arg, target_size);
1849
            }
1850
            break;
1851
        case IOC_W:
1852
            argptr = lock_user(arg, target_size, 1);
1853
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1854
            unlock_user(argptr, arg, 0);
1855
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1856
            break;
1857
        default:
1858
        case IOC_RW:
1859
            argptr = lock_user(arg, target_size, 1);
1860
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1861
            unlock_user(argptr, arg, 0);
1862
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1863
            if (!is_error(ret)) {
1864
                argptr = lock_user(arg, target_size, 0);
1865
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1866
                unlock_user(argptr, arg, target_size);
1867
            }
1868
            break;
1869
        }
1870
        break;
1871
    default:
1872
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
1873
                 (long)cmd, arg_type[0]);
1874
        ret = -ENOSYS;
1875
        break;
1876
    }
1877
    return ret;
1878
}
1879

    
1880
bitmask_transtbl iflag_tbl[] = {
1881
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1882
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1883
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1884
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1885
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1886
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1887
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1888
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1889
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1890
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1891
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1892
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1893
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1894
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1895
        { 0, 0, 0, 0 }
1896
};
1897

    
1898
bitmask_transtbl oflag_tbl[] = {
1899
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1900
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1901
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1902
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1903
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1904
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1905
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1906
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1907
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1908
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1909
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1910
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1911
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1912
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1913
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1914
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1915
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1916
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1917
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1918
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1919
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1920
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1921
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1922
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1923
        { 0, 0, 0, 0 }
1924
};
1925

    
1926
bitmask_transtbl cflag_tbl[] = {
1927
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1928
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1929
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1930
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1931
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1932
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1933
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1934
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1935
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1936
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1937
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1938
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1939
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1940
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1941
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1942
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1943
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1944
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1945
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1946
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1947
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1948
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1949
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1950
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1951
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1952
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1953
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1954
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1955
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1956
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1957
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1958
        { 0, 0, 0, 0 }
1959
};
1960

    
1961
bitmask_transtbl lflag_tbl[] = {
1962
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1963
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1964
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1965
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1966
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1967
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1968
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1969
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1970
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1971
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1972
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1973
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1974
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1975
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1976
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1977
        { 0, 0, 0, 0 }
1978
};
1979

    
1980
static void target_to_host_termios (void *dst, const void *src)
1981
{
1982
    struct host_termios *host = dst;
1983
    const struct target_termios *target = src;
1984

    
1985
    host->c_iflag =
1986
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1987
    host->c_oflag =
1988
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1989
    host->c_cflag =
1990
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1991
    host->c_lflag =
1992
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1993
    host->c_line = target->c_line;
1994

    
1995
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1996
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1997
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1998
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1999
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
2000
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
2001
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
2002
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
2003
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
2004
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
2005
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
2006
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
2007
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
2008
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
2009
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
2010
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
2011
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
2012
}
2013

    
2014
static void host_to_target_termios (void *dst, const void *src)
2015
{
2016
    struct target_termios *target = dst;
2017
    const struct host_termios *host = src;
2018

    
2019
    target->c_iflag =
2020
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
2021
    target->c_oflag =
2022
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
2023
    target->c_cflag =
2024
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
2025
    target->c_lflag =
2026
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
2027
    target->c_line = host->c_line;
2028

    
2029
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
2030
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
2031
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
2032
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
2033
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
2034
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
2035
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
2036
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
2037
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
2038
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
2039
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
2040
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
2041
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
2042
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
2043
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
2044
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
2045
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
2046
}
2047

    
2048
StructEntry struct_termios_def = {
2049
    .convert = { host_to_target_termios, target_to_host_termios },
2050
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
2051
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
2052
};
2053

    
2054
static bitmask_transtbl mmap_flags_tbl[] = {
2055
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
2056
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
2057
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
2058
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
2059
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
2060
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
2061
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
2062
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
2063
        { 0, 0, 0, 0 }
2064
};
2065

    
2066
static bitmask_transtbl fcntl_flags_tbl[] = {
2067
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
2068
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
2069
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
2070
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
2071
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
2072
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
2073
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
2074
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
2075
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
2076
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
2077
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
2078
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
2079
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
2080
#if defined(O_DIRECT)
2081
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
2082
#endif
2083
        { 0, 0, 0, 0 }
2084
};
2085

    
2086
#if defined(TARGET_I386)
2087

    
2088
/* NOTE: there is really one LDT for all the threads */
2089
uint8_t *ldt_table;
2090

    
2091
static int read_ldt(target_ulong ptr, unsigned long bytecount)
2092
{
2093
    int size;
2094
    void *p;
2095

    
2096
    if (!ldt_table)
2097
        return 0;
2098
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
2099
    if (size > bytecount)
2100
        size = bytecount;
2101
    p = lock_user(ptr, size, 0);
2102
    /* ??? Shoudl this by byteswapped?  */
2103
    memcpy(p, ldt_table, size);
2104
    unlock_user(p, ptr, size);
2105
    return size;
2106
}
2107

    
2108
/* XXX: add locking support */
2109
static int write_ldt(CPUX86State *env,
2110
                     target_ulong ptr, unsigned long bytecount, int oldmode)
2111
{
2112
    struct target_modify_ldt_ldt_s ldt_info;
2113
    struct target_modify_ldt_ldt_s *target_ldt_info;
2114
    int seg_32bit, contents, read_exec_only, limit_in_pages;
2115
    int seg_not_present, useable;
2116
    uint32_t *lp, entry_1, entry_2;
2117

    
2118
    if (bytecount != sizeof(ldt_info))
2119
        return -EINVAL;
2120
    lock_user_struct(target_ldt_info, ptr, 1);
2121
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2122
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2123
    ldt_info.limit = tswap32(target_ldt_info->limit);
2124
    ldt_info.flags = tswap32(target_ldt_info->flags);
2125
    unlock_user_struct(target_ldt_info, ptr, 0);
2126

    
2127
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
2128
        return -EINVAL;
2129
    seg_32bit = ldt_info.flags & 1;
2130
    contents = (ldt_info.flags >> 1) & 3;
2131
    read_exec_only = (ldt_info.flags >> 3) & 1;
2132
    limit_in_pages = (ldt_info.flags >> 4) & 1;
2133
    seg_not_present = (ldt_info.flags >> 5) & 1;
2134
    useable = (ldt_info.flags >> 6) & 1;
2135

    
2136
    if (contents == 3) {
2137
        if (oldmode)
2138
            return -EINVAL;
2139
        if (seg_not_present == 0)
2140
            return -EINVAL;
2141
    }
2142
    /* allocate the LDT */
2143
    if (!ldt_table) {
2144
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2145
        if (!ldt_table)
2146
            return -ENOMEM;
2147
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2148
        env->ldt.base = h2g(ldt_table);
2149
        env->ldt.limit = 0xffff;
2150
    }
2151

    
2152
    /* NOTE: same code as Linux kernel */
2153
    /* Allow LDTs to be cleared by the user. */
2154
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2155
        if (oldmode ||
2156
            (contents == 0                &&
2157
             read_exec_only == 1        &&
2158
             seg_32bit == 0                &&
2159
             limit_in_pages == 0        &&
2160
             seg_not_present == 1        &&
2161
             useable == 0 )) {
2162
            entry_1 = 0;
2163
            entry_2 = 0;
2164
            goto install;
2165
        }
2166
    }
2167

    
2168
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2169
        (ldt_info.limit & 0x0ffff);
2170
    entry_2 = (ldt_info.base_addr & 0xff000000) |
2171
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2172
        (ldt_info.limit & 0xf0000) |
2173
        ((read_exec_only ^ 1) << 9) |
2174
        (contents << 10) |
2175
        ((seg_not_present ^ 1) << 15) |
2176
        (seg_32bit << 22) |
2177
        (limit_in_pages << 23) |
2178
        0x7000;
2179
    if (!oldmode)
2180
        entry_2 |= (useable << 20);
2181

    
2182
    /* Install the new entry ...  */
2183
install:
2184
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
2185
    lp[0] = tswap32(entry_1);
2186
    lp[1] = tswap32(entry_2);
2187
    return 0;
2188
}
2189

    
2190
/* specific and weird i386 syscalls */
2191
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
2192
{
2193
    int ret = -ENOSYS;
2194

    
2195
    switch (func) {
2196
    case 0:
2197
        ret = read_ldt(ptr, bytecount);
2198
        break;
2199
    case 1:
2200
        ret = write_ldt(env, ptr, bytecount, 1);
2201
        break;
2202
    case 0x11:
2203
        ret = write_ldt(env, ptr, bytecount, 0);
2204
        break;
2205
    }
2206
    return ret;
2207
}
2208

    
2209
#endif /* defined(TARGET_I386) */
2210

    
2211
/* this stack is the equivalent of the kernel stack associated with a
2212
   thread/process */
2213
#define NEW_STACK_SIZE 8192
2214

    
2215
static int clone_func(void *arg)
2216
{
2217
    CPUState *env = arg;
2218
    cpu_loop(env);
2219
    /* never exits */
2220
    return 0;
2221
}
2222

    
2223
int do_fork(CPUState *env, unsigned int flags, target_ulong newsp)
2224
{
2225
    int ret;
2226
    TaskState *ts;
2227
    uint8_t *new_stack;
2228
    CPUState *new_env;
2229

    
2230
    if (flags & CLONE_VM) {
2231
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
2232
        memset(ts, 0, sizeof(TaskState));
2233
        new_stack = ts->stack;
2234
        ts->used = 1;
2235
        /* add in task state list */
2236
        ts->next = first_task_state;
2237
        first_task_state = ts;
2238
        /* we create a new CPU instance. */
2239
        new_env = cpu_copy(env);
2240
#if defined(TARGET_I386)
2241
        if (!newsp)
2242
            newsp = env->regs[R_ESP];
2243
        new_env->regs[R_ESP] = newsp;
2244
        new_env->regs[R_EAX] = 0;
2245
#elif defined(TARGET_ARM)
2246
        if (!newsp)
2247
            newsp = env->regs[13];
2248
        new_env->regs[13] = newsp;
2249
        new_env->regs[0] = 0;
2250
#elif defined(TARGET_SPARC)
2251
        if (!newsp)
2252
            newsp = env->regwptr[22];
2253
        new_env->regwptr[22] = newsp;
2254
        new_env->regwptr[0] = 0;
2255
        /* XXXXX */
2256
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
2257
#elif defined(TARGET_M68K)
2258
        if (!newsp)
2259
            newsp = env->aregs[7];
2260
        new_env->aregs[7] = newsp;
2261
        new_env->dregs[0] = 0;
2262
        /* ??? is this sufficient?  */
2263
#elif defined(TARGET_MIPS)
2264
        if (!newsp)
2265
            newsp = env->gpr[29][env->current_tc];
2266
        new_env->gpr[29][env->current_tc] = newsp;
2267
#elif defined(TARGET_PPC)
2268
        if (!newsp)
2269
            newsp = env->gpr[1];
2270
        new_env->gpr[1] = newsp;
2271
        {
2272
            int i;
2273
            for (i = 7; i < 32; i++)
2274
                new_env->gpr[i] = 0;
2275
        }
2276
#elif defined(TARGET_SH4)
2277
        if (!newsp)
2278
          newsp = env->gregs[15];
2279
        new_env->gregs[15] = newsp;
2280
        /* XXXXX */
2281
#elif defined(TARGET_ALPHA)
2282
       if (!newsp)
2283
         newsp = env->ir[30];
2284
       new_env->ir[30] = newsp;
2285
        /* ? */
2286
        {
2287
            int i;
2288
            for (i = 7; i < 30; i++)
2289
                new_env->ir[i] = 0;
2290
        }
2291
#elif defined(TARGET_CRIS)
2292
        if (!newsp)
2293
          newsp = env->regs[14];
2294
        new_env->regs[14] = newsp;
2295
#else
2296
#error unsupported target CPU
2297
#endif
2298
        new_env->opaque = ts;
2299
#ifdef __ia64__
2300
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2301
#else
2302
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2303
#endif
2304
    } else {
2305
        /* if no CLONE_VM, we consider it is a fork */
2306
        if ((flags & ~CSIGNAL) != 0)
2307
            return -EINVAL;
2308
        ret = fork();
2309
    }
2310
    return ret;
2311
}
2312

    
2313
static target_long do_fcntl(int fd, int cmd, target_ulong arg)
2314
{
2315
    struct flock fl;
2316
    struct target_flock *target_fl;
2317
    struct flock64 fl64;
2318
    struct target_flock64 *target_fl64;
2319
    target_long ret;
2320

    
2321
    switch(cmd) {
2322
    case TARGET_F_GETLK:
2323
        lock_user_struct(target_fl, arg, 1);
2324
        fl.l_type = tswap16(target_fl->l_type);
2325
        fl.l_whence = tswap16(target_fl->l_whence);
2326
        fl.l_start = tswapl(target_fl->l_start);
2327
        fl.l_len = tswapl(target_fl->l_len);
2328
        fl.l_pid = tswapl(target_fl->l_pid);
2329
        unlock_user_struct(target_fl, arg, 0);
2330
        ret = fcntl(fd, cmd, &fl);
2331
        if (ret == 0) {
2332
            lock_user_struct(target_fl, arg, 0);
2333
            target_fl->l_type = tswap16(fl.l_type);
2334
            target_fl->l_whence = tswap16(fl.l_whence);
2335
            target_fl->l_start = tswapl(fl.l_start);
2336
            target_fl->l_len = tswapl(fl.l_len);
2337
            target_fl->l_pid = tswapl(fl.l_pid);
2338
            unlock_user_struct(target_fl, arg, 1);
2339
        }
2340
        break;
2341

    
2342
    case TARGET_F_SETLK:
2343
    case TARGET_F_SETLKW:
2344
        lock_user_struct(target_fl, arg, 1);
2345
        fl.l_type = tswap16(target_fl->l_type);
2346
        fl.l_whence = tswap16(target_fl->l_whence);
2347
        fl.l_start = tswapl(target_fl->l_start);
2348
        fl.l_len = tswapl(target_fl->l_len);
2349
        fl.l_pid = tswapl(target_fl->l_pid);
2350
        unlock_user_struct(target_fl, arg, 0);
2351
        ret = fcntl(fd, cmd, &fl);
2352
        break;
2353

    
2354
    case TARGET_F_GETLK64:
2355
        lock_user_struct(target_fl64, arg, 1);
2356
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2357
        fl64.l_whence = tswap16(target_fl64->l_whence);
2358
        fl64.l_start = tswapl(target_fl64->l_start);
2359
        fl64.l_len = tswapl(target_fl64->l_len);
2360
        fl64.l_pid = tswap16(target_fl64->l_pid);
2361
        unlock_user_struct(target_fl64, arg, 0);
2362
        ret = fcntl(fd, cmd >> 1, &fl64);
2363
        if (ret == 0) {
2364
            lock_user_struct(target_fl64, arg, 0);
2365
            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
2366
            target_fl64->l_whence = tswap16(fl64.l_whence);
2367
            target_fl64->l_start = tswapl(fl64.l_start);
2368
            target_fl64->l_len = tswapl(fl64.l_len);
2369
            target_fl64->l_pid = tswapl(fl64.l_pid);
2370
            unlock_user_struct(target_fl64, arg, 1);
2371
        }
2372
                break;
2373
    case TARGET_F_SETLK64:
2374
    case TARGET_F_SETLKW64:
2375
        lock_user_struct(target_fl64, arg, 1);
2376
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2377
        fl64.l_whence = tswap16(target_fl64->l_whence);
2378
        fl64.l_start = tswapl(target_fl64->l_start);
2379
        fl64.l_len = tswapl(target_fl64->l_len);
2380
        fl64.l_pid = tswap16(target_fl64->l_pid);
2381
        unlock_user_struct(target_fl64, arg, 0);
2382
                ret = fcntl(fd, cmd >> 1, &fl64);
2383
        break;
2384

    
2385
    case F_GETFL:
2386
        ret = fcntl(fd, cmd, arg);
2387
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
2388
        break;
2389

    
2390
    case F_SETFL:
2391
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
2392
        break;
2393

    
2394
    default:
2395
        ret = fcntl(fd, cmd, arg);
2396
        break;
2397
    }
2398
    return ret;
2399
}
2400

    
2401
#ifdef USE_UID16
2402

    
2403
static inline int high2lowuid(int uid)
2404
{
2405
    if (uid > 65535)
2406
        return 65534;
2407
    else
2408
        return uid;
2409
}
2410

    
2411
static inline int high2lowgid(int gid)
2412
{
2413
    if (gid > 65535)
2414
        return 65534;
2415
    else
2416
        return gid;
2417
}
2418

    
2419
static inline int low2highuid(int uid)
2420
{
2421
    if ((int16_t)uid == -1)
2422
        return -1;
2423
    else
2424
        return uid;
2425
}
2426

    
2427
static inline int low2highgid(int gid)
2428
{
2429
    if ((int16_t)gid == -1)
2430
        return -1;
2431
    else
2432
        return gid;
2433
}
2434

    
2435
#endif /* USE_UID16 */
2436

    
2437
void syscall_init(void)
2438
{
2439
    IOCTLEntry *ie;
2440
    const argtype *arg_type;
2441
    int size;
2442

    
2443
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
2444
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
2445
#include "syscall_types.h"
2446
#undef STRUCT
2447
#undef STRUCT_SPECIAL
2448

    
2449
    /* we patch the ioctl size if necessary. We rely on the fact that
2450
       no ioctl has all the bits at '1' in the size field */
2451
    ie = ioctl_entries;
2452
    while (ie->target_cmd != 0) {
2453
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
2454
            TARGET_IOC_SIZEMASK) {
2455
            arg_type = ie->arg_type;
2456
            if (arg_type[0] != TYPE_PTR) {
2457
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2458
                        ie->target_cmd);
2459
                exit(1);
2460
            }
2461
            arg_type++;
2462
            size = thunk_type_size(arg_type, 0);
2463
            ie->target_cmd = (ie->target_cmd &
2464
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
2465
                (size << TARGET_IOC_SIZESHIFT);
2466
        }
2467
        /* automatic consistency check if same arch */
2468
#if defined(__i386__) && defined(TARGET_I386)
2469
        if (ie->target_cmd != ie->host_cmd) {
2470
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
2471
                    ie->target_cmd, ie->host_cmd);
2472
        }
2473
#endif
2474
        ie++;
2475
    }
2476
}
2477

    
2478
#if TARGET_LONG_BITS == 32
2479
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
2480
{
2481
#ifdef TARGET_WORDS_BIG_ENDIAN
2482
    return ((uint64_t)word0 << 32) | word1;
2483
#else
2484
    return ((uint64_t)word1 << 32) | word0;
2485
#endif
2486
}
2487
#else /* TARGET_LONG_BITS == 32 */
2488
static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
2489
{
2490
    return word0;
2491
}
2492
#endif /* TARGET_LONG_BITS != 32 */
2493

    
2494
#ifdef TARGET_NR_truncate64
2495
static inline target_long target_truncate64(void *cpu_env, const char *arg1,
2496
                                            target_long arg2,
2497
                                            target_long arg3,
2498
                                            target_long arg4)
2499
{
2500
#ifdef TARGET_ARM
2501
    if (((CPUARMState *)cpu_env)->eabi)
2502
      {
2503
        arg2 = arg3;
2504
        arg3 = arg4;
2505
      }
2506
#endif
2507
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
2508
}
2509
#endif
2510

    
2511
#ifdef TARGET_NR_ftruncate64
2512
static inline target_long target_ftruncate64(void *cpu_env, target_long arg1,
2513
                                             target_long arg2,
2514
                                             target_long arg3,
2515
                                             target_long arg4)
2516
{
2517
#ifdef TARGET_ARM
2518
    if (((CPUARMState *)cpu_env)->eabi)
2519
      {
2520
        arg2 = arg3;
2521
        arg3 = arg4;
2522
      }
2523
#endif
2524
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
2525
}
2526
#endif
2527

    
2528
static inline void target_to_host_timespec(struct timespec *host_ts,
2529
                                           target_ulong target_addr)
2530
{
2531
    struct target_timespec *target_ts;
2532

    
2533
    lock_user_struct(target_ts, target_addr, 1);
2534
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
2535
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
2536
    unlock_user_struct(target_ts, target_addr, 0);
2537
}
2538

    
2539
static inline void host_to_target_timespec(target_ulong target_addr,
2540
                                           struct timespec *host_ts)
2541
{
2542
    struct target_timespec *target_ts;
2543

    
2544
    lock_user_struct(target_ts, target_addr, 0);
2545
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
2546
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
2547
    unlock_user_struct(target_ts, target_addr, 1);
2548
}
2549

    
2550
target_long do_syscall(void *cpu_env, int num, target_long arg1,
2551
                       target_long arg2, target_long arg3, target_long arg4,
2552
                       target_long arg5, target_long arg6)
2553
{
2554
    target_long ret;
2555
    struct stat st;
2556
    struct statfs stfs;
2557
    void *p;
2558

    
2559
#ifdef DEBUG
2560
    gemu_log("syscall %d", num);
2561
#endif
2562
    switch(num) {
2563
    case TARGET_NR_exit:
2564
#ifdef HAVE_GPROF
2565
        _mcleanup();
2566
#endif
2567
        gdb_exit(cpu_env, arg1);
2568
        /* XXX: should free thread stack and CPU env */
2569
        _exit(arg1);
2570
        ret = 0; /* avoid warning */
2571
        break;
2572
    case TARGET_NR_read:
2573
        page_unprotect_range(arg2, arg3);
2574
        p = lock_user(arg2, arg3, 0);
2575
        ret = get_errno(read(arg1, p, arg3));
2576
        unlock_user(p, arg2, ret);
2577
        break;
2578
    case TARGET_NR_write:
2579
        p = lock_user(arg2, arg3, 1);
2580
        ret = get_errno(write(arg1, p, arg3));
2581
        unlock_user(p, arg2, 0);
2582
        break;
2583
    case TARGET_NR_open:
2584
        p = lock_user_string(arg1);
2585
        ret = get_errno(open(path(p),
2586
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
2587
                             arg3));
2588
        unlock_user(p, arg1, 0);
2589
        break;
2590
#if defined(TARGET_NR_openat) && defined(__NR_openat)
2591
    case TARGET_NR_openat:
2592
        if (!arg2) {
2593
            ret = -EFAULT;
2594
            goto fail;
2595
        }
2596
        p = lock_user_string(arg2);
2597
        if (!access_ok(VERIFY_READ, p, 1))
2598
            ret = -EFAULT;
2599
        else
2600
            ret = get_errno(sys_openat(arg1,
2601
                                       path(p),
2602
                                       target_to_host_bitmask(arg3, fcntl_flags_tbl),
2603
                                       arg4));
2604
        if (p)
2605
            unlock_user(p, arg2, 0);
2606
        break;
2607
#endif
2608
    case TARGET_NR_close:
2609
        ret = get_errno(close(arg1));
2610
        break;
2611
    case TARGET_NR_brk:
2612
        ret = do_brk(arg1);
2613
        break;
2614
    case TARGET_NR_fork:
2615
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
2616
        break;
2617
#ifdef TARGET_NR_waitpid
2618
    case TARGET_NR_waitpid:
2619
        {
2620
            int status;
2621
            ret = get_errno(waitpid(arg1, &status, arg3));
2622
            if (!is_error(ret) && arg2)
2623
                tput32(arg2, status);
2624
        }
2625
        break;
2626
#endif
2627
#ifdef TARGET_NR_creat /* not on alpha */
2628
    case TARGET_NR_creat:
2629
        p = lock_user_string(arg1);
2630
        ret = get_errno(creat(p, arg2));
2631
        unlock_user(p, arg1, 0);
2632
        break;
2633
#endif
2634
    case TARGET_NR_link:
2635
        {
2636
            void * p2;
2637
            p = lock_user_string(arg1);
2638
            p2 = lock_user_string(arg2);
2639
            ret = get_errno(link(p, p2));
2640
            unlock_user(p2, arg2, 0);
2641
            unlock_user(p, arg1, 0);
2642
        }
2643
        break;
2644
#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
2645
    case TARGET_NR_linkat:
2646
        if (!arg2 || !arg4) {
2647
            ret = -EFAULT;
2648
            goto fail;
2649
        }
2650
        {
2651
            void * p2 = NULL;
2652
            p  = lock_user_string(arg2);
2653
            p2 = lock_user_string(arg4);
2654
            if (!access_ok(VERIFY_READ, p, 1)
2655
                || !access_ok(VERIFY_READ, p2, 1))
2656
                ret = -EFAULT;
2657
            else
2658
                ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
2659
            if (p2)
2660
                unlock_user(p, arg2, 0);
2661
            if (p)
2662
                unlock_user(p2, arg4, 0);
2663
        }
2664
        break;
2665
#endif
2666
    case TARGET_NR_unlink:
2667
        p = lock_user_string(arg1);
2668
        ret = get_errno(unlink(p));
2669
        unlock_user(p, arg1, 0);
2670
        break;
2671
#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
2672
    case TARGET_NR_unlinkat:
2673
        if (!arg2) {
2674
            ret = -EFAULT;
2675
            goto fail;
2676
        }
2677
        p = lock_user_string(arg2);
2678
        if (!access_ok(VERIFY_READ, p, 1))
2679
            ret = -EFAULT;
2680
        else
2681
            ret = get_errno(sys_unlinkat(arg1, p, arg3));
2682
        if (p)
2683
            unlock_user(p, arg2, 0);
2684
        break;
2685
#endif
2686
    case TARGET_NR_execve:
2687
        {
2688
            char **argp, **envp;
2689
            int argc, envc;
2690
            target_ulong gp;
2691
            target_ulong guest_argp;
2692
            target_ulong guest_envp;
2693
            target_ulong addr;
2694
            char **q;
2695

    
2696
            argc = 0;
2697
            guest_argp = arg2;
2698
            for (gp = guest_argp; tgetl(gp); gp++)
2699
                argc++;
2700
            envc = 0;
2701
            guest_envp = arg3;
2702
            for (gp = guest_envp; tgetl(gp); gp++)
2703
                envc++;
2704

    
2705
            argp = alloca((argc + 1) * sizeof(void *));
2706
            envp = alloca((envc + 1) * sizeof(void *));
2707

    
2708
            for (gp = guest_argp, q = argp; ;
2709
                  gp += sizeof(target_ulong), q++) {
2710
                addr = tgetl(gp);
2711
                if (!addr)
2712
                    break;
2713
                *q = lock_user_string(addr);
2714
            }
2715
            *q = NULL;
2716

    
2717
            for (gp = guest_envp, q = envp; ;
2718
                  gp += sizeof(target_ulong), q++) {
2719
                addr = tgetl(gp);
2720
                if (!addr)
2721
                    break;
2722
                *q = lock_user_string(addr);
2723
            }
2724
            *q = NULL;
2725

    
2726
            p = lock_user_string(arg1);
2727
            ret = get_errno(execve(p, argp, envp));
2728
            unlock_user(p, arg1, 0);
2729

    
2730
            for (gp = guest_argp, q = argp; *q;
2731
                  gp += sizeof(target_ulong), q++) {
2732
                addr = tgetl(gp);
2733
                unlock_user(*q, addr, 0);
2734
            }
2735
            for (gp = guest_envp, q = envp; *q;
2736
                  gp += sizeof(target_ulong), q++) {
2737
                addr = tgetl(gp);
2738
                unlock_user(*q, addr, 0);
2739
            }
2740
        }
2741
        break;
2742
    case TARGET_NR_chdir:
2743
        p = lock_user_string(arg1);
2744
        ret = get_errno(chdir(p));
2745
        unlock_user(p, arg1, 0);
2746
        break;
2747
#ifdef TARGET_NR_time
2748
    case TARGET_NR_time:
2749
        {
2750
            time_t host_time;
2751
            ret = get_errno(time(&host_time));
2752
            if (!is_error(ret) && arg1)
2753
                tputl(arg1, host_time);
2754
        }
2755
        break;
2756
#endif
2757
    case TARGET_NR_mknod:
2758
        p = lock_user_string(arg1);
2759
        ret = get_errno(mknod(p, arg2, arg3));
2760
        unlock_user(p, arg1, 0);
2761
        break;
2762
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
2763
    case TARGET_NR_mknodat:
2764
        if (!arg2) {
2765
            ret = -EFAULT;
2766
            goto fail;
2767
        }
2768
        p = lock_user_string(arg2);
2769
        if (!access_ok(VERIFY_READ, p, 1))
2770
            ret = -EFAULT;
2771
        else
2772
            ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
2773
        if (p)
2774
            unlock_user(p, arg2, 0);
2775
        break;
2776
#endif
2777
    case TARGET_NR_chmod:
2778
        p = lock_user_string(arg1);
2779
        ret = get_errno(chmod(p, arg2));
2780
        unlock_user(p, arg1, 0);
2781
        break;
2782
#ifdef TARGET_NR_break
2783
    case TARGET_NR_break:
2784
        goto unimplemented;
2785
#endif
2786
#ifdef TARGET_NR_oldstat
2787
    case TARGET_NR_oldstat:
2788
        goto unimplemented;
2789
#endif
2790
    case TARGET_NR_lseek:
2791
        ret = get_errno(lseek(arg1, arg2, arg3));
2792
        break;
2793
#ifdef TARGET_NR_getxpid
2794
    case TARGET_NR_getxpid:
2795
#else
2796
    case TARGET_NR_getpid:
2797
#endif
2798
        ret = get_errno(getpid());
2799
        break;
2800
    case TARGET_NR_mount:
2801
                {
2802
                        /* need to look at the data field */
2803
                        void *p2, *p3;
2804
                        p = lock_user_string(arg1);
2805
                        p2 = lock_user_string(arg2);
2806
                        p3 = lock_user_string(arg3);
2807
                        ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5));
2808
                        unlock_user(p, arg1, 0);
2809
                        unlock_user(p2, arg2, 0);
2810
                        unlock_user(p3, arg3, 0);
2811
                        break;
2812
                }
2813
#ifdef TARGET_NR_umount
2814
    case TARGET_NR_umount:
2815
        p = lock_user_string(arg1);
2816
        ret = get_errno(umount(p));
2817
        unlock_user(p, arg1, 0);
2818
        break;
2819
#endif
2820
#ifdef TARGET_NR_stime /* not on alpha */
2821
    case TARGET_NR_stime:
2822
        {
2823
            time_t host_time;
2824
            host_time = tgetl(arg1);
2825
            ret = get_errno(stime(&host_time));
2826
        }
2827
        break;
2828
#endif
2829
    case TARGET_NR_ptrace:
2830
        goto unimplemented;
2831
#ifdef TARGET_NR_alarm /* not on alpha */
2832
    case TARGET_NR_alarm:
2833
        ret = alarm(arg1);
2834
        break;
2835
#endif
2836
#ifdef TARGET_NR_oldfstat
2837
    case TARGET_NR_oldfstat:
2838
        goto unimplemented;
2839
#endif
2840
#ifdef TARGET_NR_pause /* not on alpha */
2841
    case TARGET_NR_pause:
2842
        ret = get_errno(pause());
2843
        break;
2844
#endif
2845
#ifdef TARGET_NR_utime
2846
    case TARGET_NR_utime:
2847
        {
2848
            struct utimbuf tbuf, *host_tbuf;
2849
            struct target_utimbuf *target_tbuf;
2850
            if (arg2) {
2851
                lock_user_struct(target_tbuf, arg2, 1);
2852
                tbuf.actime = tswapl(target_tbuf->actime);
2853
                tbuf.modtime = tswapl(target_tbuf->modtime);
2854
                unlock_user_struct(target_tbuf, arg2, 0);
2855
                host_tbuf = &tbuf;
2856
            } else {
2857
                host_tbuf = NULL;
2858
            }
2859
            p = lock_user_string(arg1);
2860
            ret = get_errno(utime(p, host_tbuf));
2861
            unlock_user(p, arg1, 0);
2862
        }
2863
        break;
2864
#endif
2865
    case TARGET_NR_utimes:
2866
        {
2867
            struct timeval *tvp, tv[2];
2868
            if (arg2) {
2869
                target_to_host_timeval(&tv[0], arg2);
2870
                target_to_host_timeval(&tv[1],
2871
                    arg2 + sizeof (struct target_timeval));
2872
                tvp = tv;
2873
            } else {
2874
                tvp = NULL;
2875
            }
2876
            p = lock_user_string(arg1);
2877
            ret = get_errno(utimes(p, tvp));
2878
            unlock_user(p, arg1, 0);
2879
        }
2880
        break;
2881
#ifdef TARGET_NR_stty
2882
    case TARGET_NR_stty:
2883
        goto unimplemented;
2884
#endif
2885
#ifdef TARGET_NR_gtty
2886
    case TARGET_NR_gtty:
2887
        goto unimplemented;
2888
#endif
2889
    case TARGET_NR_access:
2890
        p = lock_user_string(arg1);
2891
        ret = get_errno(access(p, arg2));
2892
        unlock_user(p, arg1, 0);
2893
        break;
2894
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
2895
    case TARGET_NR_faccessat:
2896
        if (!arg2) {
2897
            ret = -EFAULT;
2898
            goto fail;
2899
        }
2900
        p = lock_user_string(arg2);
2901
        if (!access_ok(VERIFY_READ, p, 1))
2902
                ret = -EFAULT;
2903
        else
2904
            ret = get_errno(sys_faccessat(arg1, p, arg3, arg4));
2905
        if (p)
2906
            unlock_user(p, arg2, 0);
2907
        break;
2908
#endif
2909
#ifdef TARGET_NR_nice /* not on alpha */
2910
    case TARGET_NR_nice:
2911
        ret = get_errno(nice(arg1));
2912
        break;
2913
#endif
2914
#ifdef TARGET_NR_ftime
2915
    case TARGET_NR_ftime:
2916
        goto unimplemented;
2917
#endif
2918
    case TARGET_NR_sync:
2919
        sync();
2920
        ret = 0;
2921
        break;
2922
    case TARGET_NR_kill:
2923
        ret = get_errno(kill(arg1, arg2));
2924
        break;
2925
    case TARGET_NR_rename:
2926
        {
2927
            void *p2;
2928
            p = lock_user_string(arg1);
2929
            p2 = lock_user_string(arg2);
2930
            ret = get_errno(rename(p, p2));
2931
            unlock_user(p2, arg2, 0);
2932
            unlock_user(p, arg1, 0);
2933
        }
2934
        break;
2935
#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
2936
    case TARGET_NR_renameat:
2937
        if (!arg2 || !arg4) {
2938
            ret = -EFAULT;
2939
            goto fail;
2940
        }
2941
        {
2942
            void *p2 = NULL;
2943
            p  = lock_user_string(arg2);
2944
            p2 = lock_user_string(arg4);
2945
            if (!access_ok(VERIFY_READ, p, 1)
2946
                || !access_ok(VERIFY_READ, p2, 1))
2947
                ret = -EFAULT;
2948
            else
2949
                ret = get_errno(sys_renameat(arg1, p, arg3, p2));
2950
            if (p2)
2951
                unlock_user(p2, arg4, 0);
2952
            if (p)
2953
                unlock_user(p, arg2, 0);
2954
        }
2955
        break;
2956
#endif
2957
    case TARGET_NR_mkdir:
2958
        p = lock_user_string(arg1);
2959
        ret = get_errno(mkdir(p, arg2));
2960
        unlock_user(p, arg1, 0);
2961
        break;
2962
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
2963
    case TARGET_NR_mkdirat:
2964
        if (!arg2) {
2965
            ret = -EFAULT;
2966
            goto fail;
2967
        }
2968
        p = lock_user_string(arg2);
2969
        if (!access_ok(VERIFY_READ, p, 1))
2970
            ret = -EFAULT;
2971
        else
2972
            ret = get_errno(sys_mkdirat(arg1, p, arg3));
2973
        if (p)
2974
            unlock_user(p, arg2, 0);
2975
        break;
2976
#endif
2977
    case TARGET_NR_rmdir:
2978
        p = lock_user_string(arg1);
2979
        ret = get_errno(rmdir(p));
2980
        unlock_user(p, arg1, 0);
2981
        break;
2982
    case TARGET_NR_dup:
2983
        ret = get_errno(dup(arg1));
2984
        break;
2985
    case TARGET_NR_pipe:
2986
        {
2987
            int host_pipe[2];
2988
            ret = get_errno(pipe(host_pipe));
2989
            if (!is_error(ret)) {
2990
#if defined(TARGET_MIPS)
2991
                CPUMIPSState *env = (CPUMIPSState*)cpu_env;
2992
                env->gpr[3][env->current_tc] = host_pipe[1];
2993
                ret = host_pipe[0];
2994
#else
2995
                tput32(arg1, host_pipe[0]);
2996
                tput32(arg1 + 4, host_pipe[1]);
2997
#endif
2998
            }
2999
        }
3000
        break;
3001
    case TARGET_NR_times:
3002
        {
3003
            struct target_tms *tmsp;
3004
            struct tms tms;
3005
            ret = get_errno(times(&tms));
3006
            if (arg1) {
3007
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
3008
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
3009
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
3010
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
3011
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
3012
            }
3013
            if (!is_error(ret))
3014
                ret = host_to_target_clock_t(ret);
3015
        }
3016
        break;
3017
#ifdef TARGET_NR_prof
3018
    case TARGET_NR_prof:
3019
        goto unimplemented;
3020
#endif
3021
#ifdef TARGET_NR_signal
3022
    case TARGET_NR_signal:
3023
        goto unimplemented;
3024
#endif
3025
    case TARGET_NR_acct:
3026
        p = lock_user_string(arg1);
3027
        ret = get_errno(acct(path(p)));
3028
        unlock_user(p, arg1, 0);
3029
        break;
3030
#ifdef TARGET_NR_umount2 /* not on alpha */
3031
    case TARGET_NR_umount2:
3032
        p = lock_user_string(arg1);
3033
        ret = get_errno(umount2(p, arg2));
3034
        unlock_user(p, arg1, 0);
3035
        break;
3036
#endif
3037
#ifdef TARGET_NR_lock
3038
    case TARGET_NR_lock:
3039
        goto unimplemented;
3040
#endif
3041
    case TARGET_NR_ioctl:
3042
        ret = do_ioctl(arg1, arg2, arg3);
3043
        break;
3044
    case TARGET_NR_fcntl:
3045
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
3046
        break;
3047
#ifdef TARGET_NR_mpx
3048
    case TARGET_NR_mpx:
3049
        goto unimplemented;
3050
#endif
3051
    case TARGET_NR_setpgid:
3052
        ret = get_errno(setpgid(arg1, arg2));
3053
        break;
3054
#ifdef TARGET_NR_ulimit
3055
    case TARGET_NR_ulimit:
3056
        goto unimplemented;
3057
#endif
3058
#ifdef TARGET_NR_oldolduname
3059
    case TARGET_NR_oldolduname:
3060
        goto unimplemented;
3061
#endif
3062
    case TARGET_NR_umask:
3063
        ret = get_errno(umask(arg1));
3064
        break;
3065
    case TARGET_NR_chroot:
3066
        p = lock_user_string(arg1);
3067
        ret = get_errno(chroot(p));
3068
        unlock_user(p, arg1, 0);
3069
        break;
3070
    case TARGET_NR_ustat:
3071
        goto unimplemented;
3072
    case TARGET_NR_dup2:
3073
        ret = get_errno(dup2(arg1, arg2));
3074
        break;
3075
#ifdef TARGET_NR_getppid /* not on alpha */
3076
    case TARGET_NR_getppid:
3077
        ret = get_errno(getppid());
3078
        break;
3079
#endif
3080
    case TARGET_NR_getpgrp:
3081
        ret = get_errno(getpgrp());
3082
        break;
3083
    case TARGET_NR_setsid:
3084
        ret = get_errno(setsid());
3085
        break;
3086
#ifdef TARGET_NR_sigaction
3087
    case TARGET_NR_sigaction:
3088
        {
3089
#if !defined(TARGET_MIPS)
3090
            struct target_old_sigaction *old_act;
3091
            struct target_sigaction act, oact, *pact;
3092
            if (arg2) {
3093
                lock_user_struct(old_act, arg2, 1);
3094
                act._sa_handler = old_act->_sa_handler;
3095
                target_siginitset(&act.sa_mask, old_act->sa_mask);
3096
                act.sa_flags = old_act->sa_flags;
3097
                act.sa_restorer = old_act->sa_restorer;
3098
                unlock_user_struct(old_act, arg2, 0);
3099
                pact = &act;
3100
            } else {
3101
                pact = NULL;
3102
            }
3103
            ret = get_errno(do_sigaction(arg1, pact, &oact));
3104
            if (!is_error(ret) && arg3) {
3105
                lock_user_struct(old_act, arg3, 0);
3106
                old_act->_sa_handler = oact._sa_handler;
3107
                old_act->sa_mask = oact.sa_mask.sig[0];
3108
                old_act->sa_flags = oact.sa_flags;
3109
                old_act->sa_restorer = oact.sa_restorer;
3110
                unlock_user_struct(old_act, arg3, 1);
3111
            }
3112
#else
3113
            struct target_sigaction act, oact, *pact, *old_act;
3114

    
3115
            if (arg2) {
3116
                lock_user_struct(old_act, arg2, 1);
3117
                act._sa_handler = old_act->_sa_handler;
3118
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
3119
                act.sa_flags = old_act->sa_flags;
3120
                unlock_user_struct(old_act, arg2, 0);
3121
                pact = &act;
3122
            } else {
3123
                pact = NULL;
3124
            }
3125

    
3126
            ret = get_errno(do_sigaction(arg1, pact, &oact));
3127

    
3128
            if (!is_error(ret) && arg3) {
3129
                lock_user_struct(old_act, arg3, 0);
3130
                old_act->_sa_handler = oact._sa_handler;
3131
                old_act->sa_flags = oact.sa_flags;
3132
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
3133
                old_act->sa_mask.sig[1] = 0;
3134
                old_act->sa_mask.sig[2] = 0;
3135
                old_act->sa_mask.sig[3] = 0;
3136
                unlock_user_struct(old_act, arg3, 1);
3137
            }
3138
#endif
3139
        }
3140
        break;
3141
#endif
3142
    case TARGET_NR_rt_sigaction:
3143
        {
3144
            struct target_sigaction *act;
3145
            struct target_sigaction *oact;
3146

    
3147
            if (arg2)
3148
                lock_user_struct(act, arg2, 1);
3149
            else
3150
                act = NULL;
3151
            if (arg3)
3152
                lock_user_struct(oact, arg3, 0);
3153
            else
3154
                oact = NULL;
3155
            ret = get_errno(do_sigaction(arg1, act, oact));
3156
            if (arg2)
3157
                unlock_user_struct(act, arg2, 0);
3158
            if (arg3)
3159
                unlock_user_struct(oact, arg3, 1);
3160
        }
3161
        break;
3162
#ifdef TARGET_NR_sgetmask /* not on alpha */
3163
    case TARGET_NR_sgetmask:
3164
        {
3165
            sigset_t cur_set;
3166
            target_ulong target_set;
3167
            sigprocmask(0, NULL, &cur_set);
3168
            host_to_target_old_sigset(&target_set, &cur_set);
3169
            ret = target_set;
3170
        }
3171
        break;
3172
#endif
3173
#ifdef TARGET_NR_ssetmask /* not on alpha */
3174
    case TARGET_NR_ssetmask:
3175
        {
3176
            sigset_t set, oset, cur_set;
3177
            target_ulong target_set = arg1;
3178
            sigprocmask(0, NULL, &cur_set);
3179
            target_to_host_old_sigset(&set, &target_set);
3180
            sigorset(&set, &set, &cur_set);
3181
            sigprocmask(SIG_SETMASK, &set, &oset);
3182
            host_to_target_old_sigset(&target_set, &oset);
3183
            ret = target_set;
3184
        }
3185
        break;
3186
#endif
3187
#ifdef TARGET_NR_sigprocmask
3188
    case TARGET_NR_sigprocmask:
3189
        {
3190
            int how = arg1;
3191
            sigset_t set, oldset, *set_ptr;
3192

    
3193
            if (arg2) {
3194
                switch(how) {
3195
                case TARGET_SIG_BLOCK:
3196
                    how = SIG_BLOCK;
3197
                    break;
3198
                case TARGET_SIG_UNBLOCK:
3199
                    how = SIG_UNBLOCK;
3200
                    break;
3201
                case TARGET_SIG_SETMASK:
3202
                    how = SIG_SETMASK;
3203
                    break;
3204
                default:
3205
                    ret = -EINVAL;
3206
                    goto fail;
3207
                }
3208
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
3209
                target_to_host_old_sigset(&set, p);
3210
                unlock_user(p, arg2, 0);
3211
                set_ptr = &set;
3212
            } else {
3213
                how = 0;
3214
                set_ptr = NULL;
3215
            }
3216
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
3217
            if (!is_error(ret) && arg3) {
3218
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
3219
                host_to_target_old_sigset(p, &oldset);
3220
                unlock_user(p, arg3, sizeof(target_sigset_t));
3221
            }
3222
        }
3223
        break;
3224
#endif
3225
    case TARGET_NR_rt_sigprocmask:
3226
        {
3227
            int how = arg1;
3228
            sigset_t set, oldset, *set_ptr;
3229

    
3230
            if (arg2) {
3231
                switch(how) {
3232
                case TARGET_SIG_BLOCK:
3233
                    how = SIG_BLOCK;
3234
                    break;
3235
                case TARGET_SIG_UNBLOCK:
3236
                    how = SIG_UNBLOCK;
3237
                    break;
3238
                case TARGET_SIG_SETMASK:
3239
                    how = SIG_SETMASK;
3240
                    break;
3241
                default:
3242
                    ret = -EINVAL;
3243
                    goto fail;
3244
                }
3245
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
3246
                target_to_host_sigset(&set, p);
3247
                unlock_user(p, arg2, 0);
3248
                set_ptr = &set;
3249
            } else {
3250
                how = 0;
3251
                set_ptr = NULL;
3252
            }
3253
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
3254
            if (!is_error(ret) && arg3) {
3255
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
3256
                host_to_target_sigset(p, &oldset);
3257
                unlock_user(p, arg3, sizeof(target_sigset_t));
3258
            }
3259
        }
3260
        break;
3261
#ifdef TARGET_NR_sigpending
3262
    case TARGET_NR_sigpending:
3263
        {
3264
            sigset_t set;
3265
            ret = get_errno(sigpending(&set));
3266
            if (!is_error(ret)) {
3267
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
3268
                host_to_target_old_sigset(p, &set);
3269
                unlock_user(p, arg1, sizeof(target_sigset_t));
3270
            }
3271
        }
3272
        break;
3273
#endif
3274
    case TARGET_NR_rt_sigpending:
3275
        {
3276
            sigset_t set;
3277
            ret = get_errno(sigpending(&set));
3278
            if (!is_error(ret)) {
3279
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
3280
                host_to_target_sigset(p, &set);
3281
                unlock_user(p, arg1, sizeof(target_sigset_t));
3282
            }
3283
        }
3284
        break;
3285
#ifdef TARGET_NR_sigsuspend
3286
    case TARGET_NR_sigsuspend:
3287
        {
3288
            sigset_t set;
3289
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3290
            target_to_host_old_sigset(&set, p);
3291
            unlock_user(p, arg1, 0);
3292
            ret = get_errno(sigsuspend(&set));
3293
        }
3294
        break;
3295
#endif
3296
    case TARGET_NR_rt_sigsuspend:
3297
        {
3298
            sigset_t set;
3299
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3300
            target_to_host_sigset(&set, p);
3301
            unlock_user(p, arg1, 0);
3302
            ret = get_errno(sigsuspend(&set));
3303
        }
3304
        break;
3305
    case TARGET_NR_rt_sigtimedwait:
3306
        {
3307
            sigset_t set;
3308
            struct timespec uts, *puts;
3309
            siginfo_t uinfo;
3310

    
3311
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3312
            target_to_host_sigset(&set, p);
3313
            unlock_user(p, arg1, 0);
3314
            if (arg3) {
3315
                puts = &uts;
3316
                target_to_host_timespec(puts, arg3);
3317
            } else {
3318
                puts = NULL;
3319
            }
3320
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
3321
            if (!is_error(ret) && arg2) {
3322
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
3323
                host_to_target_siginfo(p, &uinfo);
3324
                unlock_user(p, arg2, sizeof(target_sigset_t));
3325
            }
3326
        }
3327
        break;
3328
    case TARGET_NR_rt_sigqueueinfo:
3329
        {
3330
            siginfo_t uinfo;
3331
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
3332
            target_to_host_siginfo(&uinfo, p);
3333
            unlock_user(p, arg1, 0);
3334
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
3335
        }
3336
        break;
3337
#ifdef TARGET_NR_sigreturn
3338
    case TARGET_NR_sigreturn:
3339
        /* NOTE: ret is eax, so not transcoding must be done */
3340
        ret = do_sigreturn(cpu_env);
3341
        break;
3342
#endif
3343
    case TARGET_NR_rt_sigreturn:
3344
        /* NOTE: ret is eax, so not transcoding must be done */
3345
        ret = do_rt_sigreturn(cpu_env);
3346
        break;
3347
    case TARGET_NR_sethostname:
3348
        p = lock_user_string(arg1);
3349
        ret = get_errno(sethostname(p, arg2));
3350
        unlock_user(p, arg1, 0);
3351
        break;
3352
    case TARGET_NR_setrlimit:
3353
        {
3354
            /* XXX: convert resource ? */
3355
            int resource = arg1;
3356
            struct target_rlimit *target_rlim;
3357
            struct rlimit rlim;
3358
            lock_user_struct(target_rlim, arg2, 1);
3359
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3360
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
3361
            unlock_user_struct(target_rlim, arg2, 0);
3362
            ret = get_errno(setrlimit(resource, &rlim));
3363
        }
3364
        break;
3365
    case TARGET_NR_getrlimit:
3366
        {
3367
            /* XXX: convert resource ? */
3368
            int resource = arg1;
3369
            struct target_rlimit *target_rlim;
3370
            struct rlimit rlim;
3371

    
3372
            ret = get_errno(getrlimit(resource, &rlim));
3373
            if (!is_error(ret)) {
3374
                lock_user_struct(target_rlim, arg2, 0);
3375
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3376
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
3377
                unlock_user_struct(target_rlim, arg2, 1);
3378
            }
3379
        }
3380
        break;
3381
    case TARGET_NR_getrusage:
3382
        {
3383
            struct rusage rusage;
3384
            ret = get_errno(getrusage(arg1, &rusage));
3385
            if (!is_error(ret)) {
3386
                host_to_target_rusage(arg2, &rusage);
3387
            }
3388
        }
3389
        break;
3390
    case TARGET_NR_gettimeofday:
3391
        {
3392
            struct timeval tv;
3393
            ret = get_errno(gettimeofday(&tv, NULL));
3394
            if (!is_error(ret)) {
3395
                host_to_target_timeval(arg1, &tv);
3396
            }
3397
        }
3398
        break;
3399
    case TARGET_NR_settimeofday:
3400
        {
3401
            struct timeval tv;
3402
            target_to_host_timeval(&tv, arg1);
3403
            ret = get_errno(settimeofday(&tv, NULL));
3404
        }
3405
        break;
3406
#ifdef TARGET_NR_select
3407
    case TARGET_NR_select:
3408
        {
3409
            struct target_sel_arg_struct *sel;
3410
            target_ulong inp, outp, exp, tvp;
3411
            long nsel;
3412

    
3413
            lock_user_struct(sel, arg1, 1);
3414
            nsel = tswapl(sel->n);
3415
            inp = tswapl(sel->inp);
3416
            outp = tswapl(sel->outp);
3417
            exp = tswapl(sel->exp);
3418
            tvp = tswapl(sel->tvp);
3419
            unlock_user_struct(sel, arg1, 0);
3420
            ret = do_select(nsel, inp, outp, exp, tvp);
3421
        }
3422
        break;
3423
#endif
3424
    case TARGET_NR_symlink:
3425
        {
3426
            void *p2;
3427
            p = lock_user_string(arg1);
3428
            p2 = lock_user_string(arg2);
3429
            ret = get_errno(symlink(p, p2));
3430
            unlock_user(p2, arg2, 0);
3431
            unlock_user(p, arg1, 0);
3432
        }
3433
        break;
3434
#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
3435
    case TARGET_NR_symlinkat:
3436
        if (!arg1 || !arg3) {
3437
            ret = -EFAULT;
3438
            goto fail;
3439
        }
3440
        {
3441
            void *p2 = NULL;
3442
            p  = lock_user_string(arg1);
3443
            p2 = lock_user_string(arg3);
3444
            if (!access_ok(VERIFY_READ, p, 1)
3445
                || !access_ok(VERIFY_READ, p2, 1))
3446
                ret = -EFAULT;
3447
            else
3448
                ret = get_errno(sys_symlinkat(p, arg2, p2));
3449
            if (p2)
3450
                unlock_user(p2, arg3, 0);
3451
            if (p)
3452
                unlock_user(p, arg1, 0);
3453
        }
3454
        break;
3455
#endif
3456
#ifdef TARGET_NR_oldlstat
3457
    case TARGET_NR_oldlstat:
3458
        goto unimplemented;
3459
#endif
3460
    case TARGET_NR_readlink:
3461
        {
3462
            void *p2;
3463
            p = lock_user_string(arg1);
3464
            p2 = lock_user(arg2, arg3, 0);
3465
            ret = get_errno(readlink(path(p), p2, arg3));
3466
            unlock_user(p2, arg2, ret);
3467
            unlock_user(p, arg1, 0);
3468
        }
3469
        break;
3470
#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
3471
    case TARGET_NR_readlinkat:
3472
        if (!arg2 || !arg3) {
3473
            ret = -EFAULT;
3474
            goto fail;
3475
        }
3476
        {
3477
            void *p2 = NULL;
3478
            p  = lock_user_string(arg2);
3479
            p2 = lock_user(arg3, arg4, 0);
3480
            if (!access_ok(VERIFY_READ, p, 1)
3481
                || !access_ok(VERIFY_READ, p2, 1))
3482
                ret = -EFAULT;
3483
            else
3484
                ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
3485
            if (p2)
3486
                unlock_user(p2, arg3, ret);
3487
            if (p)
3488
                unlock_user(p, arg2, 0);
3489
        }
3490
        break;
3491
#endif
3492
#ifdef TARGET_NR_uselib
3493
    case TARGET_NR_uselib:
3494
        goto unimplemented;
3495
#endif
3496
#ifdef TARGET_NR_swapon
3497
    case TARGET_NR_swapon:
3498
        p = lock_user_string(arg1);
3499
        ret = get_errno(swapon(p, arg2));
3500
        unlock_user(p, arg1, 0);
3501
        break;
3502
#endif
3503
    case TARGET_NR_reboot:
3504
        goto unimplemented;
3505
#ifdef TARGET_NR_readdir
3506
    case TARGET_NR_readdir:
3507
        goto unimplemented;
3508
#endif
3509
#ifdef TARGET_NR_mmap
3510
    case TARGET_NR_mmap:
3511
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS)
3512
        {
3513
            target_ulong *v;
3514
            target_ulong v1, v2, v3, v4, v5, v6;
3515
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
3516
            v1 = tswapl(v[0]);
3517
            v2 = tswapl(v[1]);
3518
            v3 = tswapl(v[2]);
3519
            v4 = tswapl(v[3]);
3520
            v5 = tswapl(v[4]);
3521
            v6 = tswapl(v[5]);
3522
            unlock_user(v, arg1, 0);
3523
            ret = get_errno(target_mmap(v1, v2, v3,
3524
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
3525
                                        v5, v6));
3526
        }
3527
#else
3528
        ret = get_errno(target_mmap(arg1, arg2, arg3,
3529
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
3530
                                    arg5,
3531
                                    arg6));
3532
#endif
3533
        break;
3534
#endif
3535
#ifdef TARGET_NR_mmap2
3536
    case TARGET_NR_mmap2:
3537
#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
3538
#define MMAP_SHIFT 12
3539
#else
3540
#define MMAP_SHIFT TARGET_PAGE_BITS
3541
#endif
3542
        ret = get_errno(target_mmap(arg1, arg2, arg3,
3543
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
3544
                                    arg5,
3545
                                    arg6 << MMAP_SHIFT));
3546
        break;
3547
#endif
3548
    case TARGET_NR_munmap:
3549
        ret = get_errno(target_munmap(arg1, arg2));
3550
        break;
3551
    case TARGET_NR_mprotect:
3552
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
3553
        break;
3554
#ifdef TARGET_NR_mremap
3555
    case TARGET_NR_mremap:
3556
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
3557
        break;
3558
#endif
3559
        /* ??? msync/mlock/munlock are broken for softmmu.  */
3560
#ifdef TARGET_NR_msync
3561
    case TARGET_NR_msync:
3562
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
3563
        break;
3564
#endif
3565
#ifdef TARGET_NR_mlock
3566
    case TARGET_NR_mlock:
3567
        ret = get_errno(mlock(g2h(arg1), arg2));
3568
        break;
3569
#endif
3570
#ifdef TARGET_NR_munlock
3571
    case TARGET_NR_munlock:
3572
        ret = get_errno(munlock(g2h(arg1), arg2));
3573
        break;
3574
#endif
3575
#ifdef TARGET_NR_mlockall
3576
    case TARGET_NR_mlockall:
3577
        ret = get_errno(mlockall(arg1));
3578
        break;
3579
#endif
3580
#ifdef TARGET_NR_munlockall
3581
    case TARGET_NR_munlockall:
3582
        ret = get_errno(munlockall());
3583
        break;
3584
#endif
3585
    case TARGET_NR_truncate:
3586
        p = lock_user_string(arg1);
3587
        ret = get_errno(truncate(p, arg2));
3588
        unlock_user(p, arg1, 0);
3589
        break;
3590
    case TARGET_NR_ftruncate:
3591
        ret = get_errno(ftruncate(arg1, arg2));
3592
        break;
3593
    case TARGET_NR_fchmod:
3594
        ret = get_errno(fchmod(arg1, arg2));
3595
        break;
3596
#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
3597
    case TARGET_NR_fchmodat:
3598
        if (!arg2) {
3599
            ret = -EFAULT;
3600
            goto fail;
3601
        }
3602
        p = lock_user_string(arg2);
3603
        if (!access_ok(VERIFY_READ, p, 1))
3604
            ret = -EFAULT;
3605
        else
3606
            ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4));
3607
        if (p)
3608
            unlock_user(p, arg2, 0);
3609
        break;
3610
#endif
3611
    case TARGET_NR_getpriority:
3612
        /* libc does special remapping of the return value of
3613
         * sys_getpriority() so it's just easiest to call
3614
         * sys_getpriority() directly rather than through libc. */
3615
        ret = sys_getpriority(arg1, arg2);
3616
        break;
3617
    case TARGET_NR_setpriority:
3618
        ret = get_errno(setpriority(arg1, arg2, arg3));
3619
        break;
3620
#ifdef TARGET_NR_profil
3621
    case TARGET_NR_profil:
3622
        goto unimplemented;
3623
#endif
3624
    case TARGET_NR_statfs:
3625
        p = lock_user_string(arg1);
3626
        ret = get_errno(statfs(path(p), &stfs));
3627
        unlock_user(p, arg1, 0);
3628
    convert_statfs:
3629
        if (!is_error(ret)) {
3630
            struct target_statfs *target_stfs;
3631

    
3632
            lock_user_struct(target_stfs, arg2, 0);
3633
            /* ??? put_user is probably wrong.  */
3634
            put_user(stfs.f_type, &target_stfs->f_type);
3635
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
3636
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
3637
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
3638
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
3639
            put_user(stfs.f_files, &target_stfs->f_files);
3640
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
3641
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
3642
            put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
3643
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
3644
            unlock_user_struct(target_stfs, arg2, 1);
3645
        }
3646
        break;
3647
    case TARGET_NR_fstatfs:
3648
        ret = get_errno(fstatfs(arg1, &stfs));
3649
        goto convert_statfs;
3650
#ifdef TARGET_NR_statfs64
3651
    case TARGET_NR_statfs64:
3652
        p = lock_user_string(arg1);
3653
        ret = get_errno(statfs(path(p), &stfs));
3654
        unlock_user(p, arg1, 0);
3655
    convert_statfs64:
3656
        if (!is_error(ret)) {
3657
            struct target_statfs64 *target_stfs;
3658

    
3659
            lock_user_struct(target_stfs, arg3, 0);
3660
            /* ??? put_user is probably wrong.  */
3661
            put_user(stfs.f_type, &target_stfs->f_type);
3662
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
3663
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
3664
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
3665
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
3666
            put_user(stfs.f_files, &target_stfs->f_files);
3667
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
3668
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
3669
            put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
3670
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
3671
            unlock_user_struct(target_stfs, arg3, 0);
3672
        }
3673
        break;
3674
    case TARGET_NR_fstatfs64:
3675
        ret = get_errno(fstatfs(arg1, &stfs));
3676
        goto convert_statfs64;
3677
#endif
3678
#ifdef TARGET_NR_ioperm
3679
    case TARGET_NR_ioperm:
3680
        goto unimplemented;
3681
#endif
3682
#ifdef TARGET_NR_socketcall
3683
    case TARGET_NR_socketcall:
3684
        ret = do_socketcall(arg1, arg2);
3685
        break;
3686
#endif
3687
#ifdef TARGET_NR_accept
3688
    case TARGET_NR_accept:
3689
        ret = do_accept(arg1, arg2, arg3);
3690
        break;
3691
#endif
3692
#ifdef TARGET_NR_bind
3693
    case TARGET_NR_bind:
3694
        ret = do_bind(arg1, arg2, arg3);
3695
        break;
3696
#endif
3697
#ifdef TARGET_NR_connect
3698
    case TARGET_NR_connect:
3699
        ret = do_connect(arg1, arg2, arg3);
3700
        break;
3701
#endif
3702
#ifdef TARGET_NR_getpeername
3703
    case TARGET_NR_getpeername:
3704
        ret = do_getpeername(arg1, arg2, arg3);
3705
        break;
3706
#endif
3707
#ifdef TARGET_NR_getsockname
3708
    case TARGET_NR_getsockname:
3709
        ret = do_getsockname(arg1, arg2, arg3);
3710
        break;
3711
#endif
3712
#ifdef TARGET_NR_getsockopt
3713
    case TARGET_NR_getsockopt:
3714
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3715
        break;
3716
#endif
3717
#ifdef TARGET_NR_listen
3718
    case TARGET_NR_listen:
3719
        ret = get_errno(listen(arg1, arg2));
3720
        break;
3721
#endif
3722
#ifdef TARGET_NR_recv
3723
    case TARGET_NR_recv:
3724
        ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3725
        break;
3726
#endif
3727
#ifdef TARGET_NR_recvfrom
3728
    case TARGET_NR_recvfrom:
3729
        ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3730
        break;
3731
#endif
3732
#ifdef TARGET_NR_recvmsg
3733
    case TARGET_NR_recvmsg:
3734
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
3735
        break;
3736
#endif
3737
#ifdef TARGET_NR_send
3738
    case TARGET_NR_send:
3739
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3740
        break;
3741
#endif
3742
#ifdef TARGET_NR_sendmsg
3743
    case TARGET_NR_sendmsg:
3744
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
3745
        break;
3746
#endif
3747
#ifdef TARGET_NR_sendto
3748
    case TARGET_NR_sendto:
3749
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3750
        break;
3751
#endif
3752
#ifdef TARGET_NR_shutdown
3753
    case TARGET_NR_shutdown:
3754
        ret = get_errno(shutdown(arg1, arg2));
3755
        break;
3756
#endif
3757
#ifdef TARGET_NR_socket
3758
    case TARGET_NR_socket:
3759
        ret = do_socket(arg1, arg2, arg3);
3760
        break;
3761
#endif
3762
#ifdef TARGET_NR_socketpair
3763
    case TARGET_NR_socketpair:
3764
        ret = do_socketpair(arg1, arg2, arg3, arg4);
3765
        break;
3766
#endif
3767
#ifdef TARGET_NR_setsockopt
3768
    case TARGET_NR_setsockopt:
3769
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3770
        break;
3771
#endif
3772

    
3773
    case TARGET_NR_syslog:
3774
        p = lock_user_string(arg2);
3775
        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
3776
        unlock_user(p, arg2, 0);
3777
        break;
3778

    
3779
    case TARGET_NR_setitimer:
3780
        {
3781
            struct itimerval value, ovalue, *pvalue;
3782

    
3783
            if (arg2) {
3784
                pvalue = &value;
3785
                target_to_host_timeval(&pvalue->it_interval,
3786
                                       arg2);
3787
                target_to_host_timeval(&pvalue->it_value,
3788
                                       arg2 + sizeof(struct target_timeval));
3789
            } else {
3790
                pvalue = NULL;
3791
            }
3792
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
3793
            if (!is_error(ret) && arg3) {
3794
                host_to_target_timeval(arg3,
3795
                                       &ovalue.it_interval);
3796
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
3797
                                       &ovalue.it_value);
3798
            }
3799
        }
3800
        break;
3801
    case TARGET_NR_getitimer:
3802
        {
3803
            struct itimerval value;
3804

    
3805
            ret = get_errno(getitimer(arg1, &value));
3806
            if (!is_error(ret) && arg2) {
3807
                host_to_target_timeval(arg2,
3808
                                       &value.it_interval);
3809
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
3810
                                       &value.it_value);
3811
            }
3812
        }
3813
        break;
3814
    case TARGET_NR_stat:
3815
        p = lock_user_string(arg1);
3816
        ret = get_errno(stat(path(p), &st));
3817
        unlock_user(p, arg1, 0);
3818
        goto do_stat;
3819
    case TARGET_NR_lstat:
3820
        p = lock_user_string(arg1);
3821
        ret = get_errno(lstat(path(p), &st));
3822
        unlock_user(p, arg1, 0);
3823
        goto do_stat;
3824
    case TARGET_NR_fstat:
3825
        {
3826
            ret = get_errno(fstat(arg1, &st));
3827
        do_stat:
3828
            if (!is_error(ret)) {
3829
                struct target_stat *target_st;
3830

    
3831
                lock_user_struct(target_st, arg2, 0);
3832
#if defined(TARGET_MIPS) || defined(TARGET_SPARC64)
3833
                target_st->st_dev = tswap32(st.st_dev);
3834
#else
3835
                target_st->st_dev = tswap16(st.st_dev);
3836
#endif
3837
                target_st->st_ino = tswapl(st.st_ino);
3838
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
3839
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
3840
                target_st->st_uid = tswap32(st.st_uid);
3841
                target_st->st_gid = tswap32(st.st_gid);
3842
#elif defined(TARGET_SPARC64)
3843
                target_st->st_mode = tswap32(st.st_mode);
3844
                target_st->st_uid = tswap32(st.st_uid);
3845
                target_st->st_gid = tswap32(st.st_gid);
3846
#else
3847
                target_st->st_mode = tswap16(st.st_mode);
3848
                target_st->st_uid = tswap16(st.st_uid);
3849
                target_st->st_gid = tswap16(st.st_gid);
3850
#endif
3851
#if defined(TARGET_MIPS)
3852
                /* If this is the same on PPC, then just merge w/ the above ifdef */
3853
                target_st->st_nlink = tswapl(st.st_nlink);
3854
                target_st->st_rdev = tswapl(st.st_rdev);
3855
#elif defined(TARGET_SPARC64)
3856
                target_st->st_nlink = tswap32(st.st_nlink);
3857
                target_st->st_rdev = tswap32(st.st_rdev);
3858
#else
3859
                target_st->st_nlink = tswap16(st.st_nlink);
3860
                target_st->st_rdev = tswap16(st.st_rdev);
3861
#endif
3862
                target_st->st_size = tswapl(st.st_size);
3863
                target_st->st_blksize = tswapl(st.st_blksize);
3864
                target_st->st_blocks = tswapl(st.st_blocks);
3865
                target_st->target_st_atime = tswapl(st.st_atime);
3866
                target_st->target_st_mtime = tswapl(st.st_mtime);
3867
                target_st->target_st_ctime = tswapl(st.st_ctime);
3868
                unlock_user_struct(target_st, arg2, 1);
3869
            }
3870
        }
3871
        break;
3872
#ifdef TARGET_NR_olduname
3873
    case TARGET_NR_olduname:
3874
        goto unimplemented;
3875
#endif
3876
#ifdef TARGET_NR_iopl
3877
    case TARGET_NR_iopl:
3878
        goto unimplemented;
3879
#endif
3880
    case TARGET_NR_vhangup:
3881
        ret = get_errno(vhangup());
3882
        break;
3883
#ifdef TARGET_NR_idle
3884
    case TARGET_NR_idle:
3885
        goto unimplemented;
3886
#endif
3887
#ifdef TARGET_NR_syscall
3888
    case TARGET_NR_syscall:
3889
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
3890
            break;
3891
#endif
3892
    case TARGET_NR_wait4:
3893
        {
3894
            int status;
3895
            target_long status_ptr = arg2;
3896
            struct rusage rusage, *rusage_ptr;
3897
            target_ulong target_rusage = arg4;
3898
            if (target_rusage)
3899
                rusage_ptr = &rusage;
3900
            else
3901
                rusage_ptr = NULL;
3902
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
3903
            if (!is_error(ret)) {
3904
                if (status_ptr)
3905
                    tputl(status_ptr, status);
3906
                if (target_rusage) {
3907
                    host_to_target_rusage(target_rusage, &rusage);
3908
                }
3909
            }
3910
        }
3911
        break;
3912
#ifdef TARGET_NR_swapoff
3913
    case TARGET_NR_swapoff:
3914
        p = lock_user_string(arg1);
3915
        ret = get_errno(swapoff(p));
3916
        unlock_user(p, arg1, 0);
3917
        break;
3918
#endif
3919
    case TARGET_NR_sysinfo:
3920
        {
3921
            struct target_sysinfo *target_value;
3922
            struct sysinfo value;
3923
            ret = get_errno(sysinfo(&value));
3924
            if (!is_error(ret) && arg1)
3925
            {
3926
                /* ??? __put_user is probably wrong.  */
3927
                lock_user_struct(target_value, arg1, 0);
3928
                __put_user(value.uptime, &target_value->uptime);
3929
                __put_user(value.loads[0], &target_value->loads[0]);
3930
                __put_user(value.loads[1], &target_value->loads[1]);
3931
                __put_user(value.loads[2], &target_value->loads[2]);
3932
                __put_user(value.totalram, &target_value->totalram);
3933
                __put_user(value.freeram, &target_value->freeram);
3934
                __put_user(value.sharedram, &target_value->sharedram);
3935
                __put_user(value.bufferram, &target_value->bufferram);
3936
                __put_user(value.totalswap, &target_value->totalswap);
3937
                __put_user(value.freeswap, &target_value->freeswap);
3938
                __put_user(value.procs, &target_value->procs);
3939
                __put_user(value.totalhigh, &target_value->totalhigh);
3940
                __put_user(value.freehigh, &target_value->freehigh);
3941
                __put_user(value.mem_unit, &target_value->mem_unit);
3942
                unlock_user_struct(target_value, arg1, 1);
3943
            }
3944
        }
3945
        break;
3946
#ifdef TARGET_NR_ipc
3947
    case TARGET_NR_ipc:
3948
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3949
        break;
3950
#endif
3951
    case TARGET_NR_fsync:
3952
        ret = get_errno(fsync(arg1));
3953
        break;
3954
    case TARGET_NR_clone:
3955
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3956
        break;
3957
#ifdef __NR_exit_group
3958
        /* new thread calls */
3959
    case TARGET_NR_exit_group:
3960
        gdb_exit(cpu_env, arg1);
3961
        ret = get_errno(exit_group(arg1));
3962
        break;
3963
#endif
3964
    case TARGET_NR_setdomainname:
3965
        p = lock_user_string(arg1);
3966
        ret = get_errno(setdomainname(p, arg2));
3967
        unlock_user(p, arg1, 0);
3968
        break;
3969
    case TARGET_NR_uname:
3970
        /* no need to transcode because we use the linux syscall */
3971
        {
3972
            struct new_utsname * buf;
3973

    
3974
            lock_user_struct(buf, arg1, 0);
3975
            ret = get_errno(sys_uname(buf));
3976
            if (!is_error(ret)) {
3977
                /* Overrite the native machine name with whatever is being
3978
                   emulated. */
3979
                strcpy (buf->machine, UNAME_MACHINE);
3980
                /* Allow the user to override the reported release.  */
3981
                if (qemu_uname_release && *qemu_uname_release)
3982
                  strcpy (buf->release, qemu_uname_release);
3983
            }
3984
            unlock_user_struct(buf, arg1, 1);
3985
        }
3986
        break;
3987
#ifdef TARGET_I386
3988
    case TARGET_NR_modify_ldt:
3989
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3990
        break;
3991
#if !defined(TARGET_X86_64)
3992
    case TARGET_NR_vm86old:
3993
        goto unimplemented;
3994
    case TARGET_NR_vm86:
3995
        ret = do_vm86(cpu_env, arg1, arg2);
3996
        break;
3997
#endif
3998
#endif
3999
    case TARGET_NR_adjtimex:
4000
        goto unimplemented;
4001
#ifdef TARGET_NR_create_module
4002
    case TARGET_NR_create_module:
4003
#endif
4004
    case TARGET_NR_init_module:
4005
    case TARGET_NR_delete_module:
4006
#ifdef TARGET_NR_get_kernel_syms
4007
    case TARGET_NR_get_kernel_syms:
4008
#endif
4009
        goto unimplemented;
4010
    case TARGET_NR_quotactl:
4011
        goto unimplemented;
4012
    case TARGET_NR_getpgid:
4013
        ret = get_errno(getpgid(arg1));
4014
        break;
4015
    case TARGET_NR_fchdir:
4016
        ret = get_errno(fchdir(arg1));
4017
        break;
4018
#ifdef TARGET_NR_bdflush /* not on x86_64 */
4019
    case TARGET_NR_bdflush:
4020
        goto unimplemented;
4021
#endif
4022
#ifdef TARGET_NR_sysfs
4023
    case TARGET_NR_sysfs:
4024
        goto unimplemented;
4025
#endif
4026
    case TARGET_NR_personality:
4027
        ret = get_errno(personality(arg1));
4028
        break;
4029
#ifdef TARGET_NR_afs_syscall
4030
    case TARGET_NR_afs_syscall:
4031
        goto unimplemented;
4032
#endif
4033
#ifdef TARGET_NR__llseek /* Not on alpha */
4034
    case TARGET_NR__llseek:
4035
        {
4036
#if defined (__x86_64__)
4037
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
4038
            tput64(arg4, ret);
4039
#else
4040
            int64_t res;
4041
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4042
            tput64(arg4, res);
4043
#endif
4044
        }
4045
        break;
4046
#endif
4047
    case TARGET_NR_getdents:
4048
#if TARGET_LONG_SIZE != 4
4049
        goto unimplemented;
4050
#warning not supported
4051
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
4052
        {
4053
            struct target_dirent *target_dirp;
4054
            struct dirent *dirp;
4055
            target_long count = arg3;
4056

    
4057
            dirp = malloc(count);
4058
            if (!dirp)
4059
                return -ENOMEM;
4060

    
4061
            ret = get_errno(sys_getdents(arg1, dirp, count));
4062
            if (!is_error(ret)) {
4063
                struct dirent *de;
4064
                struct target_dirent *tde;
4065
                int len = ret;
4066
                int reclen, treclen;
4067
                int count1, tnamelen;
4068

    
4069
                count1 = 0;
4070
                de = dirp;
4071
                target_dirp = lock_user(arg2, count, 0);
4072
                tde = target_dirp;
4073
                while (len > 0) {
4074
                    reclen = de->d_reclen;
4075
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
4076
                    tde->d_reclen = tswap16(treclen);
4077
                    tde->d_ino = tswapl(de->d_ino);
4078
                    tde->d_off = tswapl(de->d_off);
4079
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
4080
                    if (tnamelen > 256)
4081
                        tnamelen = 256;
4082
                    /* XXX: may not be correct */
4083
                    strncpy(tde->d_name, de->d_name, tnamelen);
4084
                    de = (struct dirent *)((char *)de + reclen);
4085
                    len -= reclen;
4086
                    tde = (struct target_dirent *)((char *)tde + treclen);
4087
                    count1 += treclen;
4088
                }
4089
                ret = count1;
4090
            }
4091
            unlock_user(target_dirp, arg2, ret);
4092
            free(dirp);
4093
        }
4094
#else
4095
        {
4096
            struct dirent *dirp;
4097
            target_long count = arg3;
4098

    
4099
            dirp = lock_user(arg2, count, 0);
4100
            ret = get_errno(sys_getdents(arg1, dirp, count));
4101
            if (!is_error(ret)) {
4102
                struct dirent *de;
4103
                int len = ret;
4104
                int reclen;
4105
                de = dirp;
4106
                while (len > 0) {
4107
                    reclen = de->d_reclen;
4108
                    if (reclen > len)
4109
                        break;
4110
                    de->d_reclen = tswap16(reclen);
4111
                    tswapls(&de->d_ino);
4112
                    tswapls(&de->d_off);
4113
                    de = (struct dirent *)((char *)de + reclen);
4114
                    len -= reclen;
4115
                }
4116
            }
4117
            unlock_user(dirp, arg2, ret);
4118
        }
4119
#endif
4120
        break;
4121
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
4122
    case TARGET_NR_getdents64:
4123
        {
4124
            struct dirent64 *dirp;
4125
            target_long count = arg3;
4126
            dirp = lock_user(arg2, count, 0);
4127
            ret = get_errno(sys_getdents64(arg1, dirp, count));
4128
            if (!is_error(ret)) {
4129
                struct dirent64 *de;
4130
                int len = ret;
4131
                int reclen;
4132
                de = dirp;
4133
                while (len > 0) {
4134
                    reclen = de->d_reclen;
4135
                    if (reclen > len)
4136
                        break;
4137
                    de->d_reclen = tswap16(reclen);
4138
                    tswap64s(&de->d_ino);
4139
                    tswap64s(&de->d_off);
4140
                    de = (struct dirent64 *)((char *)de + reclen);
4141
                    len -= reclen;
4142
                }
4143
            }
4144
            unlock_user(dirp, arg2, ret);
4145
        }
4146
        break;
4147
#endif /* TARGET_NR_getdents64 */
4148
#ifdef TARGET_NR__newselect
4149
    case TARGET_NR__newselect:
4150
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
4151
        break;
4152
#endif
4153
#ifdef TARGET_NR_poll
4154
    case TARGET_NR_poll:
4155
        {
4156
            struct target_pollfd *target_pfd;
4157
            unsigned int nfds = arg2;
4158
            int timeout = arg3;
4159
            struct pollfd *pfd;
4160
            unsigned int i;
4161

    
4162
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
4163
            pfd = alloca(sizeof(struct pollfd) * nfds);
4164
            for(i = 0; i < nfds; i++) {
4165
                pfd[i].fd = tswap32(target_pfd[i].fd);
4166
                pfd[i].events = tswap16(target_pfd[i].events);
4167
            }
4168
            ret = get_errno(poll(pfd, nfds, timeout));
4169
            if (!is_error(ret)) {
4170
                for(i = 0; i < nfds; i++) {
4171
                    target_pfd[i].revents = tswap16(pfd[i].revents);
4172
                }
4173
                ret += nfds * (sizeof(struct target_pollfd)
4174
                               - sizeof(struct pollfd));
4175
            }
4176
            unlock_user(target_pfd, arg1, ret);
4177
        }
4178
        break;
4179
#endif
4180
    case TARGET_NR_flock:
4181
        /* NOTE: the flock constant seems to be the same for every
4182
           Linux platform */
4183
        ret = get_errno(flock(arg1, arg2));
4184
        break;
4185
    case TARGET_NR_readv:
4186
        {
4187
            int count = arg3;
4188
            struct iovec *vec;
4189

    
4190
            vec = alloca(count * sizeof(struct iovec));
4191
            lock_iovec(vec, arg2, count, 0);
4192
            ret = get_errno(readv(arg1, vec, count));
4193
            unlock_iovec(vec, arg2, count, 1);
4194
        }
4195
        break;
4196
    case TARGET_NR_writev:
4197
        {
4198
            int count = arg3;
4199
            struct iovec *vec;
4200

    
4201
            vec = alloca(count * sizeof(struct iovec));
4202
            lock_iovec(vec, arg2, count, 1);
4203
            ret = get_errno(writev(arg1, vec, count));
4204
            unlock_iovec(vec, arg2, count, 0);
4205
        }
4206
        break;
4207
    case TARGET_NR_getsid:
4208
        ret = get_errno(getsid(arg1));
4209
        break;
4210
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
4211
    case TARGET_NR_fdatasync:
4212
        ret = get_errno(fdatasync(arg1));
4213
        break;
4214
#endif
4215
    case TARGET_NR__sysctl:
4216
        /* We don't implement this, but ENODIR is always a safe
4217
           return value. */
4218
        return -ENOTDIR;
4219
    case TARGET_NR_sched_setparam:
4220
        {
4221
            struct sched_param *target_schp;
4222
            struct sched_param schp;
4223

    
4224
            lock_user_struct(target_schp, arg2, 1);
4225
            schp.sched_priority = tswap32(target_schp->sched_priority);
4226
            unlock_user_struct(target_schp, arg2, 0);
4227
            ret = get_errno(sched_setparam(arg1, &schp));
4228
        }
4229
        break;
4230
    case TARGET_NR_sched_getparam:
4231
        {
4232
            struct sched_param *target_schp;
4233
            struct sched_param schp;
4234
            ret = get_errno(sched_getparam(arg1, &schp));
4235
            if (!is_error(ret)) {
4236
                lock_user_struct(target_schp, arg2, 0);
4237
                target_schp->sched_priority = tswap32(schp.sched_priority);
4238
                unlock_user_struct(target_schp, arg2, 1);
4239
            }
4240
        }
4241
        break;
4242
    case TARGET_NR_sched_setscheduler:
4243
        {
4244
            struct sched_param *target_schp;
4245
            struct sched_param schp;
4246
            lock_user_struct(target_schp, arg3, 1);
4247
            schp.sched_priority = tswap32(target_schp->sched_priority);
4248
            unlock_user_struct(target_schp, arg3, 0);
4249
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
4250
        }
4251
        break;
4252
    case TARGET_NR_sched_getscheduler:
4253
        ret = get_errno(sched_getscheduler(arg1));
4254
        break;
4255
    case TARGET_NR_sched_yield:
4256
        ret = get_errno(sched_yield());
4257
        break;
4258
    case TARGET_NR_sched_get_priority_max:
4259
        ret = get_errno(sched_get_priority_max(arg1));
4260
        break;
4261
    case TARGET_NR_sched_get_priority_min:
4262
        ret = get_errno(sched_get_priority_min(arg1));
4263
        break;
4264
    case TARGET_NR_sched_rr_get_interval:
4265
        {
4266
            struct timespec ts;
4267
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
4268
            if (!is_error(ret)) {
4269
                host_to_target_timespec(arg2, &ts);
4270
            }
4271
        }
4272
        break;
4273
    case TARGET_NR_nanosleep:
4274
        {
4275
            struct timespec req, rem;
4276
            target_to_host_timespec(&req, arg1);
4277
            ret = get_errno(nanosleep(&req, &rem));
4278
            if (is_error(ret) && arg2) {
4279
                host_to_target_timespec(arg2, &rem);
4280
            }
4281
        }
4282
        break;
4283
#ifdef TARGET_NR_query_module
4284
    case TARGET_NR_query_module:
4285
        goto unimplemented;
4286
#endif
4287
#ifdef TARGET_NR_nfsservctl
4288
    case TARGET_NR_nfsservctl:
4289
        goto unimplemented;
4290
#endif
4291
    case TARGET_NR_prctl:
4292
        switch (arg1)
4293
            {
4294
            case PR_GET_PDEATHSIG:
4295
                {
4296
                    int deathsig;
4297
                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
4298
                    if (!is_error(ret) && arg2)
4299
                        tput32(arg2, deathsig);
4300
                }
4301
                break;
4302
            default:
4303
                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
4304
                break;
4305
            }
4306
        break;
4307
#ifdef TARGET_NR_pread
4308
    case TARGET_NR_pread:
4309
        page_unprotect_range(arg2, arg3);
4310
        p = lock_user(arg2, arg3, 0);
4311
        ret = get_errno(pread(arg1, p, arg3, arg4));
4312
        unlock_user(p, arg2, ret);
4313
        break;
4314
    case TARGET_NR_pwrite:
4315
        p = lock_user(arg2, arg3, 1);
4316
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
4317
        unlock_user(p, arg2, 0);
4318
        break;
4319
#endif
4320
    case TARGET_NR_getcwd:
4321
        p = lock_user(arg1, arg2, 0);
4322
        ret = get_errno(sys_getcwd1(p, arg2));
4323
        unlock_user(p, arg1, ret);
4324
        break;
4325
    case TARGET_NR_capget:
4326
        goto unimplemented;
4327
    case TARGET_NR_capset:
4328
        goto unimplemented;
4329
    case TARGET_NR_sigaltstack:
4330
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
4331
    defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA)
4332
        ret = do_sigaltstack((struct target_sigaltstack *)arg1,
4333
                             (struct target_sigaltstack *)arg2,
4334
                             get_sp_from_cpustate((CPUState *)cpu_env));
4335
        break;
4336
#else
4337
        goto unimplemented;
4338
#endif
4339
    case TARGET_NR_sendfile:
4340
        goto unimplemented;
4341
#ifdef TARGET_NR_getpmsg
4342
    case TARGET_NR_getpmsg:
4343
        goto unimplemented;
4344
#endif
4345
#ifdef TARGET_NR_putpmsg
4346
    case TARGET_NR_putpmsg:
4347
        goto unimplemented;
4348
#endif
4349
#ifdef TARGET_NR_vfork
4350
    case TARGET_NR_vfork:
4351
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
4352
        break;
4353
#endif
4354
#ifdef TARGET_NR_ugetrlimit
4355
    case TARGET_NR_ugetrlimit:
4356
    {
4357
        struct rlimit rlim;
4358
        ret = get_errno(getrlimit(arg1, &rlim));
4359
        if (!is_error(ret)) {
4360
            struct target_rlimit *target_rlim;
4361
            lock_user_struct(target_rlim, arg2, 0);
4362
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
4363
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
4364
            unlock_user_struct(target_rlim, arg2, 1);
4365
        }
4366
        break;
4367
    }
4368
#endif
4369
#ifdef TARGET_NR_truncate64
4370
    case TARGET_NR_truncate64:
4371
        p = lock_user_string(arg1);
4372
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
4373
        unlock_user(p, arg1, 0);
4374
        break;
4375
#endif
4376
#ifdef TARGET_NR_ftruncate64
4377
    case TARGET_NR_ftruncate64:
4378
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
4379
        break;
4380
#endif
4381
#ifdef TARGET_NR_stat64
4382
    case TARGET_NR_stat64:
4383
        p = lock_user_string(arg1);
4384
        ret = get_errno(stat(path(p), &st));
4385
        unlock_user(p, arg1, 0);
4386
        goto do_stat64;
4387
#endif
4388
#ifdef TARGET_NR_lstat64
4389
    case TARGET_NR_lstat64:
4390
        p = lock_user_string(arg1);
4391
        ret = get_errno(lstat(path(p), &st));
4392
        unlock_user(p, arg1, 0);
4393
        goto do_stat64;
4394
#endif
4395
#ifdef TARGET_NR_fstat64
4396
    case TARGET_NR_fstat64:
4397
        {
4398
            ret = get_errno(fstat(arg1, &st));
4399
        do_stat64:
4400
            if (!is_error(ret)) {
4401
#ifdef TARGET_ARM
4402
                if (((CPUARMState *)cpu_env)->eabi) {
4403
                    struct target_eabi_stat64 *target_st;
4404
                    lock_user_struct(target_st, arg2, 1);
4405
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
4406
                    /* put_user is probably wrong.  */
4407
                    put_user(st.st_dev, &target_st->st_dev);
4408
                    put_user(st.st_ino, &target_st->st_ino);
4409
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4410
                    put_user(st.st_ino, &target_st->__st_ino);
4411
#endif
4412
                    put_user(st.st_mode, &target_st->st_mode);
4413
                    put_user(st.st_nlink, &target_st->st_nlink);
4414
                    put_user(st.st_uid, &target_st->st_uid);
4415
                    put_user(st.st_gid, &target_st->st_gid);
4416
                    put_user(st.st_rdev, &target_st->st_rdev);
4417
                    /* XXX: better use of kernel struct */
4418
                    put_user(st.st_size, &target_st->st_size);
4419
                    put_user(st.st_blksize, &target_st->st_blksize);
4420
                    put_user(st.st_blocks, &target_st->st_blocks);
4421
                    put_user(st.st_atime, &target_st->target_st_atime);
4422
                    put_user(st.st_mtime, &target_st->target_st_mtime);
4423
                    put_user(st.st_ctime, &target_st->target_st_ctime);
4424
                    unlock_user_struct(target_st, arg2, 0);
4425
                } else
4426
#endif
4427
                {
4428
                    struct target_stat64 *target_st;
4429
                    lock_user_struct(target_st, arg2, 1);
4430
                    memset(target_st, 0, sizeof(struct target_stat64));
4431
                    /* ??? put_user is probably wrong.  */
4432
                    put_user(st.st_dev, &target_st->st_dev);
4433
                    put_user(st.st_ino, &target_st->st_ino);
4434
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4435
                    put_user(st.st_ino, &target_st->__st_ino);
4436
#endif
4437
                    put_user(st.st_mode, &target_st->st_mode);
4438
                    put_user(st.st_nlink, &target_st->st_nlink);
4439
                    put_user(st.st_uid, &target_st->st_uid);
4440
                    put_user(st.st_gid, &target_st->st_gid);
4441
                    put_user(st.st_rdev, &target_st->st_rdev);
4442
                    /* XXX: better use of kernel struct */
4443
                    put_user(st.st_size, &target_st->st_size);
4444
                    put_user(st.st_blksize, &target_st->st_blksize);
4445
                    put_user(st.st_blocks, &target_st->st_blocks);
4446
                    put_user(st.st_atime, &target_st->target_st_atime);
4447
                    put_user(st.st_mtime, &target_st->target_st_mtime);
4448
                    put_user(st.st_ctime, &target_st->target_st_ctime);
4449
                    unlock_user_struct(target_st, arg2, 0);
4450
                }
4451
            }
4452
        }
4453
        break;
4454
#endif
4455
#ifdef USE_UID16
4456
    case TARGET_NR_lchown:
4457
        p = lock_user_string(arg1);
4458
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
4459
        unlock_user(p, arg1, 0);
4460
        break;
4461
    case TARGET_NR_getuid:
4462
        ret = get_errno(high2lowuid(getuid()));
4463
        break;
4464
    case TARGET_NR_getgid:
4465
        ret = get_errno(high2lowgid(getgid()));
4466
        break;
4467
    case TARGET_NR_geteuid:
4468
        ret = get_errno(high2lowuid(geteuid()));
4469
        break;
4470
    case TARGET_NR_getegid:
4471
        ret = get_errno(high2lowgid(getegid()));
4472
        break;
4473
    case TARGET_NR_setreuid:
4474
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
4475
        break;
4476
    case TARGET_NR_setregid:
4477
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
4478
        break;
4479
    case TARGET_NR_getgroups:
4480
        {
4481
            int gidsetsize = arg1;
4482
            uint16_t *target_grouplist;
4483
            gid_t *grouplist;
4484
            int i;
4485

    
4486
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4487
            ret = get_errno(getgroups(gidsetsize, grouplist));
4488
            if (!is_error(ret)) {
4489
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
4490
                for(i = 0;i < gidsetsize; i++)
4491
                    target_grouplist[i] = tswap16(grouplist[i]);
4492
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
4493
            }
4494
        }
4495
        break;
4496
    case TARGET_NR_setgroups:
4497
        {
4498
            int gidsetsize = arg1;
4499
            uint16_t *target_grouplist;
4500
            gid_t *grouplist;
4501
            int i;
4502

    
4503
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4504
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
4505
            for(i = 0;i < gidsetsize; i++)
4506
                grouplist[i] = tswap16(target_grouplist[i]);
4507
            unlock_user(target_grouplist, arg2, 0);
4508
            ret = get_errno(setgroups(gidsetsize, grouplist));
4509
        }
4510
        break;
4511
    case TARGET_NR_fchown:
4512
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
4513
        break;
4514
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
4515
    case TARGET_NR_fchownat:
4516
        if (!arg2) {
4517
            ret = -EFAULT;
4518
            goto fail;
4519
        }
4520
        p = lock_user_string(arg2);
4521
        if (!access_ok(VERIFY_READ, p, 1))
4522
            ret = -EFAULT;
4523
        else
4524
            ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
4525
        if (p)
4526
            unlock_user(p, arg2, 0);
4527
        break;
4528
#endif
4529
#ifdef TARGET_NR_setresuid
4530
    case TARGET_NR_setresuid:
4531
        ret = get_errno(setresuid(low2highuid(arg1),
4532
                                  low2highuid(arg2),
4533
                                  low2highuid(arg3)));
4534
        break;
4535
#endif
4536
#ifdef TARGET_NR_getresuid
4537
    case TARGET_NR_getresuid:
4538
        {
4539
            uid_t ruid, euid, suid;
4540
            ret = get_errno(getresuid(&ruid, &euid, &suid));
4541
            if (!is_error(ret)) {
4542
                tput16(arg1, tswap16(high2lowuid(ruid)));
4543
                tput16(arg2, tswap16(high2lowuid(euid)));
4544
                tput16(arg3, tswap16(high2lowuid(suid)));
4545
            }
4546
        }
4547
        break;
4548
#endif
4549
#ifdef TARGET_NR_getresgid
4550
    case TARGET_NR_setresgid:
4551
        ret = get_errno(setresgid(low2highgid(arg1),
4552
                                  low2highgid(arg2),
4553
                                  low2highgid(arg3)));
4554
        break;
4555
#endif
4556
#ifdef TARGET_NR_getresgid
4557
    case TARGET_NR_getresgid:
4558
        {
4559
            gid_t rgid, egid, sgid;
4560
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
4561
            if (!is_error(ret)) {
4562
                tput16(arg1, tswap16(high2lowgid(rgid)));
4563
                tput16(arg2, tswap16(high2lowgid(egid)));
4564
                tput16(arg3, tswap16(high2lowgid(sgid)));
4565
            }
4566
        }
4567
        break;
4568
#endif
4569
    case TARGET_NR_chown:
4570
        p = lock_user_string(arg1);
4571
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
4572
        unlock_user(p, arg1, 0);
4573
        break;
4574
    case TARGET_NR_setuid:
4575
        ret = get_errno(setuid(low2highuid(arg1)));
4576
        break;
4577
    case TARGET_NR_setgid:
4578
        ret = get_errno(setgid(low2highgid(arg1)));
4579
        break;
4580
    case TARGET_NR_setfsuid:
4581
        ret = get_errno(setfsuid(arg1));
4582
        break;
4583
    case TARGET_NR_setfsgid:
4584
        ret = get_errno(setfsgid(arg1));
4585
        break;
4586
#endif /* USE_UID16 */
4587

    
4588
#ifdef TARGET_NR_lchown32
4589
    case TARGET_NR_lchown32:
4590
        p = lock_user_string(arg1);
4591
        ret = get_errno(lchown(p, arg2, arg3));
4592
        unlock_user(p, arg1, 0);
4593
        break;
4594
#endif
4595
#ifdef TARGET_NR_getuid32
4596
    case TARGET_NR_getuid32:
4597
        ret = get_errno(getuid());
4598
        break;
4599
#endif
4600
#ifdef TARGET_NR_getgid32
4601
    case TARGET_NR_getgid32:
4602
        ret = get_errno(getgid());
4603
        break;
4604
#endif
4605
#ifdef TARGET_NR_geteuid32
4606
    case TARGET_NR_geteuid32:
4607
        ret = get_errno(geteuid());
4608
        break;
4609
#endif
4610
#ifdef TARGET_NR_getegid32
4611
    case TARGET_NR_getegid32:
4612
        ret = get_errno(getegid());
4613
        break;
4614
#endif
4615
#ifdef TARGET_NR_setreuid32
4616
    case TARGET_NR_setreuid32:
4617
        ret = get_errno(setreuid(arg1, arg2));
4618
        break;
4619
#endif
4620
#ifdef TARGET_NR_setregid32
4621
    case TARGET_NR_setregid32:
4622
        ret = get_errno(setregid(arg1, arg2));
4623
        break;
4624
#endif
4625
#ifdef TARGET_NR_getgroups32
4626
    case TARGET_NR_getgroups32:
4627
        {
4628
            int gidsetsize = arg1;
4629
            uint32_t *target_grouplist;
4630
            gid_t *grouplist;
4631
            int i;
4632

    
4633
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4634
            ret = get_errno(getgroups(gidsetsize, grouplist));
4635
            if (!is_error(ret)) {
4636
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
4637
                for(i = 0;i < gidsetsize; i++)
4638
                    target_grouplist[i] = tswap32(grouplist[i]);
4639
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
4640
            }
4641
        }
4642
        break;
4643
#endif
4644
#ifdef TARGET_NR_setgroups32
4645
    case TARGET_NR_setgroups32:
4646
        {
4647
            int gidsetsize = arg1;
4648
            uint32_t *target_grouplist;
4649
            gid_t *grouplist;
4650
            int i;
4651

    
4652
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4653
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
4654
            for(i = 0;i < gidsetsize; i++)
4655
                grouplist[i] = tswap32(target_grouplist[i]);
4656
            unlock_user(target_grouplist, arg2, 0);
4657
            ret = get_errno(setgroups(gidsetsize, grouplist));
4658
        }
4659
        break;
4660
#endif
4661
#ifdef TARGET_NR_fchown32
4662
    case TARGET_NR_fchown32:
4663
        ret = get_errno(fchown(arg1, arg2, arg3));
4664
        break;
4665
#endif
4666
#ifdef TARGET_NR_setresuid32
4667
    case TARGET_NR_setresuid32:
4668
        ret = get_errno(setresuid(arg1, arg2, arg3));
4669
        break;
4670
#endif
4671
#ifdef TARGET_NR_getresuid32
4672
    case TARGET_NR_getresuid32:
4673
        {
4674
            uid_t ruid, euid, suid;
4675
            ret = get_errno(getresuid(&ruid, &euid, &suid));
4676
            if (!is_error(ret)) {
4677
                tput32(arg1, tswap32(ruid));
4678
                tput32(arg2, tswap32(euid));
4679
                tput32(arg3, tswap32(suid));
4680
            }
4681
        }
4682
        break;
4683
#endif
4684
#ifdef TARGET_NR_setresgid32
4685
    case TARGET_NR_setresgid32:
4686
        ret = get_errno(setresgid(arg1, arg2, arg3));
4687
        break;
4688
#endif
4689
#ifdef TARGET_NR_getresgid32
4690
    case TARGET_NR_getresgid32:
4691
        {
4692
            gid_t rgid, egid, sgid;
4693
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
4694
            if (!is_error(ret)) {
4695
                tput32(arg1, tswap32(rgid));
4696
                tput32(arg2, tswap32(egid));
4697
                tput32(arg3, tswap32(sgid));
4698
            }
4699
        }
4700
        break;
4701
#endif
4702
#ifdef TARGET_NR_chown32
4703
    case TARGET_NR_chown32:
4704
        p = lock_user_string(arg1);
4705
        ret = get_errno(chown(p, arg2, arg3));
4706
        unlock_user(p, arg1, 0);
4707
        break;
4708
#endif
4709
#ifdef TARGET_NR_setuid32
4710
    case TARGET_NR_setuid32:
4711
        ret = get_errno(setuid(arg1));
4712
        break;
4713
#endif
4714
#ifdef TARGET_NR_setgid32
4715
    case TARGET_NR_setgid32:
4716
        ret = get_errno(setgid(arg1));
4717
        break;
4718
#endif
4719
#ifdef TARGET_NR_setfsuid32
4720
    case TARGET_NR_setfsuid32:
4721
        ret = get_errno(setfsuid(arg1));
4722
        break;
4723
#endif
4724
#ifdef TARGET_NR_setfsgid32
4725
    case TARGET_NR_setfsgid32:
4726
        ret = get_errno(setfsgid(arg1));
4727
        break;
4728
#endif
4729

    
4730
    case TARGET_NR_pivot_root:
4731
        goto unimplemented;
4732
#ifdef TARGET_NR_mincore
4733
    case TARGET_NR_mincore:
4734
        goto unimplemented;
4735
#endif
4736
#ifdef TARGET_NR_madvise
4737
    case TARGET_NR_madvise:
4738
        /* A straight passthrough may not be safe because qemu sometimes
4739
           turns private flie-backed mappings into anonymous mappings.
4740
           This will break MADV_DONTNEED.
4741
           This is a hint, so ignoring and returning success is ok.  */
4742
        ret = get_errno(0);
4743
        break;
4744
#endif
4745
#if TARGET_LONG_BITS == 32
4746
    case TARGET_NR_fcntl64:
4747
    {
4748
        int cmd;
4749
        struct flock64 fl;
4750
        struct target_flock64 *target_fl;
4751
#ifdef TARGET_ARM
4752
        struct target_eabi_flock64 *target_efl;
4753
#endif
4754

    
4755
        switch(arg2){
4756
        case TARGET_F_GETLK64:
4757
            cmd = F_GETLK64;
4758
            break;
4759
        case TARGET_F_SETLK64:
4760
            cmd = F_SETLK64;
4761
            break;
4762
        case TARGET_F_SETLKW64:
4763
            cmd = F_SETLK64;
4764
            break;
4765
        default:
4766
            cmd = arg2;
4767
            break;
4768
        }
4769

    
4770
        switch(arg2) {
4771
        case TARGET_F_GETLK64:
4772
#ifdef TARGET_ARM
4773
            if (((CPUARMState *)cpu_env)->eabi) {
4774
                lock_user_struct(target_efl, arg3, 1);
4775
                fl.l_type = tswap16(target_efl->l_type);
4776
                fl.l_whence = tswap16(target_efl->l_whence);
4777
                fl.l_start = tswap64(target_efl->l_start);
4778
                fl.l_len = tswap64(target_efl->l_len);
4779
                fl.l_pid = tswapl(target_efl->l_pid);
4780
                unlock_user_struct(target_efl, arg3, 0);
4781
            } else
4782
#endif
4783
            {
4784
                lock_user_struct(target_fl, arg3, 1);
4785
                fl.l_type = tswap16(target_fl->l_type);
4786
                fl.l_whence = tswap16(target_fl->l_whence);
4787
                fl.l_start = tswap64(target_fl->l_start);
4788
                fl.l_len = tswap64(target_fl->l_len);
4789
                fl.l_pid = tswapl(target_fl->l_pid);
4790
                unlock_user_struct(target_fl, arg3, 0);
4791
            }
4792
            ret = get_errno(fcntl(arg1, cmd, &fl));
4793
            if (ret == 0) {
4794
#ifdef TARGET_ARM
4795
                if (((CPUARMState *)cpu_env)->eabi) {
4796
                    lock_user_struct(target_efl, arg3, 0);
4797
                    target_efl->l_type = tswap16(fl.l_type);
4798
                    target_efl->l_whence = tswap16(fl.l_whence);
4799
                    target_efl->l_start = tswap64(fl.l_start);
4800
                    target_efl->l_len = tswap64(fl.l_len);
4801
                    target_efl->l_pid = tswapl(fl.l_pid);
4802
                    unlock_user_struct(target_efl, arg3, 1);
4803
                } else
4804
#endif
4805
                {
4806
                    lock_user_struct(target_fl, arg3, 0);
4807
                    target_fl->l_type = tswap16(fl.l_type);
4808
                    target_fl->l_whence = tswap16(fl.l_whence);
4809
                    target_fl->l_start = tswap64(fl.l_start);
4810
                    target_fl->l_len = tswap64(fl.l_len);
4811
                    target_fl->l_pid = tswapl(fl.l_pid);
4812
                    unlock_user_struct(target_fl, arg3, 1);
4813
                }
4814
            }
4815
            break;
4816

    
4817
        case TARGET_F_SETLK64:
4818
        case TARGET_F_SETLKW64:
4819
#ifdef TARGET_ARM
4820
            if (((CPUARMState *)cpu_env)->eabi) {
4821
                lock_user_struct(target_efl, arg3, 1);
4822
                fl.l_type = tswap16(target_efl->l_type);
4823
                fl.l_whence = tswap16(target_efl->l_whence);
4824
                fl.l_start = tswap64(target_efl->l_start);
4825
                fl.l_len = tswap64(target_efl->l_len);
4826
                fl.l_pid = tswapl(target_efl->l_pid);
4827
                unlock_user_struct(target_efl, arg3, 0);
4828
            } else
4829
#endif
4830
            {
4831
                lock_user_struct(target_fl, arg3, 1);
4832
                fl.l_type = tswap16(target_fl->l_type);
4833
                fl.l_whence = tswap16(target_fl->l_whence);
4834
                fl.l_start = tswap64(target_fl->l_start);
4835
                fl.l_len = tswap64(target_fl->l_len);
4836
                fl.l_pid = tswapl(target_fl->l_pid);
4837
                unlock_user_struct(target_fl, arg3, 0);
4838
            }
4839
            ret = get_errno(fcntl(arg1, cmd, &fl));
4840
            break;
4841
        default:
4842
            ret = get_errno(do_fcntl(arg1, cmd, arg3));
4843
            break;
4844
        }
4845
        break;
4846
    }
4847
#endif
4848
#ifdef TARGET_NR_cacheflush
4849
    case TARGET_NR_cacheflush:
4850
        /* self-modifying code is handled automatically, so nothing needed */
4851
        ret = 0;
4852
        break;
4853
#endif
4854
#ifdef TARGET_NR_security
4855
    case TARGET_NR_security:
4856
        goto unimplemented;
4857
#endif
4858
#ifdef TARGET_NR_getpagesize
4859
    case TARGET_NR_getpagesize:
4860
        ret = TARGET_PAGE_SIZE;
4861
        break;
4862
#endif
4863
    case TARGET_NR_gettid:
4864
        ret = get_errno(gettid());
4865
        break;
4866
#ifdef TARGET_NR_readahead
4867
    case TARGET_NR_readahead:
4868
        goto unimplemented;
4869
#endif
4870
#ifdef TARGET_NR_setxattr
4871
    case TARGET_NR_setxattr:
4872
    case TARGET_NR_lsetxattr:
4873
    case TARGET_NR_fsetxattr:
4874
    case TARGET_NR_getxattr:
4875
    case TARGET_NR_lgetxattr:
4876
    case TARGET_NR_fgetxattr:
4877
    case TARGET_NR_listxattr:
4878
    case TARGET_NR_llistxattr:
4879
    case TARGET_NR_flistxattr:
4880
    case TARGET_NR_removexattr:
4881
    case TARGET_NR_lremovexattr:
4882
    case TARGET_NR_fremovexattr:
4883
        goto unimplemented_nowarn;
4884
#endif
4885
#ifdef TARGET_NR_set_thread_area
4886
    case TARGET_NR_set_thread_area:
4887
#ifdef TARGET_MIPS
4888
      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
4889
      ret = 0;
4890
      break;
4891
#else
4892
      goto unimplemented_nowarn;
4893
#endif
4894
#endif
4895
#ifdef TARGET_NR_get_thread_area
4896
    case TARGET_NR_get_thread_area:
4897
        goto unimplemented_nowarn;
4898
#endif
4899
#ifdef TARGET_NR_getdomainname
4900
    case TARGET_NR_getdomainname:
4901
        goto unimplemented_nowarn;
4902
#endif
4903

    
4904
#ifdef TARGET_NR_clock_gettime
4905
    case TARGET_NR_clock_gettime:
4906
    {
4907
        struct timespec ts;
4908
        ret = get_errno(clock_gettime(arg1, &ts));
4909
        if (!is_error(ret)) {
4910
            host_to_target_timespec(arg2, &ts);
4911
        }
4912
        break;
4913
    }
4914
#endif
4915
#ifdef TARGET_NR_clock_getres
4916
    case TARGET_NR_clock_getres:
4917
    {
4918
        struct timespec ts;
4919
        ret = get_errno(clock_getres(arg1, &ts));
4920
        if (!is_error(ret)) {
4921
            host_to_target_timespec(arg2, &ts);
4922
        }
4923
        break;
4924
    }
4925
#endif
4926

    
4927
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
4928
    case TARGET_NR_set_tid_address:
4929
      ret = get_errno(set_tid_address((int *) arg1));
4930
      break;
4931
#endif
4932

    
4933
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
4934
    case TARGET_NR_tkill:
4935
        ret = get_errno(sys_tkill((int)arg1, (int)arg2));
4936
        break;
4937
#endif
4938

    
4939
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
4940
    case TARGET_NR_tgkill:
4941
        ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3));
4942
        break;
4943
#endif
4944

    
4945
#ifdef TARGET_NR_set_robust_list
4946
    case TARGET_NR_set_robust_list:
4947
        goto unimplemented_nowarn;
4948
#endif
4949

    
4950
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
4951
    case TARGET_NR_utimensat:
4952
        {
4953
            struct timespec ts[2];
4954
            target_to_host_timespec(ts, arg3);
4955
            target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
4956
            if (!arg2)
4957
                ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4));
4958
            else {
4959
                p = lock_user_string(arg2);
4960
                if (!access_ok(VERIFY_READ, p, 1))
4961
                    ret = -EFAULT;
4962
                else
4963
                    ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4));
4964
                if (p)
4965
                    unlock_user(p, arg2, 0);
4966
            }
4967
        }
4968
        break;
4969
#endif
4970

    
4971
    default:
4972
    unimplemented:
4973
        gemu_log("qemu: Unsupported syscall: %d\n", num);
4974
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
4975
    unimplemented_nowarn:
4976
#endif
4977
        ret = -ENOSYS;
4978
        break;
4979
    }
4980
 fail:
4981
#ifdef DEBUG
4982
    gemu_log(" = %ld\n", ret);
4983
#endif
4984
    return ret;
4985
}