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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>
54
#include <netinet/tcp.h>
55

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

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

    
72
#include "qemu.h"
73

    
74
//#define DEBUG
75

    
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#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
77
    || defined(TARGET_M68K) || defined(TARGET_SH4)
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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>
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#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
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#define        VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
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)                                \
103
{                                                \
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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)                        \
115
{                                                                \
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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)                                \
121
{                                                                                \
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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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}
131

    
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
{                                                                                \
137
        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
148
#define __NR_sys_linkat __NR_linkat
149
#define __NR_sys_mkdirat __NR_mkdirat
150
#define __NR_sys_mknodat __NR_mknodat
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#define __NR_sys_openat __NR_openat
152
#define __NR_sys_readlinkat __NR_readlinkat
153
#define __NR_sys_renameat __NR_renameat
154
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
155
#define __NR_sys_symlinkat __NR_symlinkat
156
#define __NR_sys_syslog __NR_syslog
157
#define __NR_sys_tgkill __NR_tgkill
158
#define __NR_sys_tkill __NR_tkill
159
#define __NR_sys_unlinkat __NR_unlinkat
160
#define __NR_sys_utimensat __NR_utimensat
161

    
162
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
163
#define __NR__llseek __NR_lseek
164
#endif
165

    
166
#ifdef __NR_gettid
167
_syscall0(int, gettid)
168
#else
169
static int gettid(void) {
170
    return -ENOSYS;
171
}
172
#endif
173
_syscall1(int,sys_uname,struct new_utsname *,buf)
174
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
175
_syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
176
#endif
177
#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
178
_syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
179
          mode_t,mode,int,flags)
180
#endif
181
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
182
_syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
183
          uid_t,owner,gid_t,group,int,flags)
184
#endif
185
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
186
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
187
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
188
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
189
#endif
190
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
191
          loff_t *, res, uint, wh);
192
#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
193
_syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
194
          int,newdirfd,const char *,newpath,int,flags)
195
#endif
196
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
197
_syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
198
#endif
199
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
200
_syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
201
          mode_t,mode,dev_t,dev)
202
#endif
203
#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)
205
#endif
206
#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
207
_syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
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          char *,buf,size_t,bufsize)
209
#endif
210
#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)
213
#endif
214
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
215
#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)
218
#endif
219
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
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#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
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_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
222
#endif
223
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
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_syscall2(int,sys_tkill,int,tid,int,sig)
225
#endif
226
#ifdef __NR_exit_group
227
_syscall1(int,exit_group,int,error_code)
228
#endif
229
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
230
_syscall1(int,set_tid_address,int *,tidptr)
231
#endif
232
#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
233
_syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
234
#endif
235
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
236
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
237
          const struct timespec *,tsp,int,flags)
238
#endif
239

    
240
extern int personality(int);
241
extern int flock(int, int);
242
extern int setfsuid(int);
243
extern int setfsgid(int);
244
extern int setresuid(uid_t, uid_t, uid_t);
245
extern int getresuid(uid_t *, uid_t *, uid_t *);
246
extern int setresgid(gid_t, gid_t, gid_t);
247
extern int getresgid(gid_t *, gid_t *, gid_t *);
248
extern int setgroups(int, gid_t *);
249

    
250
/*
251
 * This list is the union of errno values overridden in asm-<arch>/errno.h
252
 * minus the errnos that are not actually generic to all archs.
253
 */
254
static uint16_t host_to_target_errno_table[1200] = {
255
    [EIDRM]                = TARGET_EIDRM,
256
    [ECHRNG]                = TARGET_ECHRNG,
257
    [EL2NSYNC]                = TARGET_EL2NSYNC,
258
    [EL3HLT]                = TARGET_EL3HLT,
259
    [EL3RST]                = TARGET_EL3RST,
260
    [ELNRNG]                = TARGET_ELNRNG,
261
    [EUNATCH]                = TARGET_EUNATCH,
262
    [ENOCSI]                = TARGET_ENOCSI,
263
    [EL2HLT]                = TARGET_EL2HLT,
264
    [EDEADLK]                = TARGET_EDEADLK,
265
    [ENOLCK]                = TARGET_ENOLCK,
266
    [EBADE]                = TARGET_EBADE,
267
    [EBADR]                = TARGET_EBADR,
268
    [EXFULL]                = TARGET_EXFULL,
269
    [ENOANO]                = TARGET_ENOANO,
270
    [EBADRQC]                = TARGET_EBADRQC,
271
    [EBADSLT]                = TARGET_EBADSLT,
272
    [EBFONT]                = TARGET_EBFONT,
273
    [ENOSTR]                = TARGET_ENOSTR,
274
    [ENODATA]                = TARGET_ENODATA,
275
    [ETIME]                = TARGET_ETIME,
276
    [ENOSR]                = TARGET_ENOSR,
277
    [ENONET]                = TARGET_ENONET,
278
    [ENOPKG]                = TARGET_ENOPKG,
279
    [EREMOTE]                = TARGET_EREMOTE,
280
    [ENOLINK]                = TARGET_ENOLINK,
281
    [EADV]                = TARGET_EADV,
282
    [ESRMNT]                = TARGET_ESRMNT,
283
    [ECOMM]                = TARGET_ECOMM,
284
    [EPROTO]                = TARGET_EPROTO,
285
    [EDOTDOT]                = TARGET_EDOTDOT,
286
    [EMULTIHOP]                = TARGET_EMULTIHOP,
287
    [EBADMSG]                = TARGET_EBADMSG,
288
    [ENAMETOOLONG]        = TARGET_ENAMETOOLONG,
289
    [EOVERFLOW]                = TARGET_EOVERFLOW,
290
    [ENOTUNIQ]                = TARGET_ENOTUNIQ,
291
    [EBADFD]                = TARGET_EBADFD,
292
    [EREMCHG]                = TARGET_EREMCHG,
293
    [ELIBACC]                = TARGET_ELIBACC,
294
    [ELIBBAD]                = TARGET_ELIBBAD,
295
    [ELIBSCN]                = TARGET_ELIBSCN,
296
    [ELIBMAX]                = TARGET_ELIBMAX,
297
    [ELIBEXEC]                = TARGET_ELIBEXEC,
298
    [EILSEQ]                = TARGET_EILSEQ,
299
    [ENOSYS]                = TARGET_ENOSYS,
300
    [ELOOP]                = TARGET_ELOOP,
301
    [ERESTART]                = TARGET_ERESTART,
302
    [ESTRPIPE]                = TARGET_ESTRPIPE,
303
    [ENOTEMPTY]                = TARGET_ENOTEMPTY,
304
    [EUSERS]                = TARGET_EUSERS,
305
    [ENOTSOCK]                = TARGET_ENOTSOCK,
306
    [EDESTADDRREQ]        = TARGET_EDESTADDRREQ,
307
    [EMSGSIZE]                = TARGET_EMSGSIZE,
308
    [EPROTOTYPE]        = TARGET_EPROTOTYPE,
309
    [ENOPROTOOPT]        = TARGET_ENOPROTOOPT,
310
    [EPROTONOSUPPORT]        = TARGET_EPROTONOSUPPORT,
311
    [ESOCKTNOSUPPORT]        = TARGET_ESOCKTNOSUPPORT,
312
    [EOPNOTSUPP]        = TARGET_EOPNOTSUPP,
313
    [EPFNOSUPPORT]        = TARGET_EPFNOSUPPORT,
314
    [EAFNOSUPPORT]        = TARGET_EAFNOSUPPORT,
315
    [EADDRINUSE]        = TARGET_EADDRINUSE,
316
    [EADDRNOTAVAIL]        = TARGET_EADDRNOTAVAIL,
317
    [ENETDOWN]                = TARGET_ENETDOWN,
318
    [ENETUNREACH]        = TARGET_ENETUNREACH,
319
    [ENETRESET]                = TARGET_ENETRESET,
320
    [ECONNABORTED]        = TARGET_ECONNABORTED,
321
    [ECONNRESET]        = TARGET_ECONNRESET,
322
    [ENOBUFS]                = TARGET_ENOBUFS,
323
    [EISCONN]                = TARGET_EISCONN,
324
    [ENOTCONN]                = TARGET_ENOTCONN,
325
    [EUCLEAN]                = TARGET_EUCLEAN,
326
    [ENOTNAM]                = TARGET_ENOTNAM,
327
    [ENAVAIL]                = TARGET_ENAVAIL,
328
    [EISNAM]                = TARGET_EISNAM,
329
    [EREMOTEIO]                = TARGET_EREMOTEIO,
330
    [ESHUTDOWN]                = TARGET_ESHUTDOWN,
331
    [ETOOMANYREFS]        = TARGET_ETOOMANYREFS,
332
    [ETIMEDOUT]                = TARGET_ETIMEDOUT,
333
    [ECONNREFUSED]        = TARGET_ECONNREFUSED,
334
    [EHOSTDOWN]                = TARGET_EHOSTDOWN,
335
    [EHOSTUNREACH]        = TARGET_EHOSTUNREACH,
336
    [EALREADY]                = TARGET_EALREADY,
337
    [EINPROGRESS]        = TARGET_EINPROGRESS,
338
    [ESTALE]                = TARGET_ESTALE,
339
    [ECANCELED]                = TARGET_ECANCELED,
340
    [ENOMEDIUM]                = TARGET_ENOMEDIUM,
341
    [EMEDIUMTYPE]        = TARGET_EMEDIUMTYPE,
342
#ifdef ENOKEY
343
    [ENOKEY]                = TARGET_ENOKEY,
344
#endif
345
#ifdef EKEYEXPIRED
346
    [EKEYEXPIRED]        = TARGET_EKEYEXPIRED,
347
#endif
348
#ifdef EKEYREVOKED
349
    [EKEYREVOKED]        = TARGET_EKEYREVOKED,
350
#endif
351
#ifdef EKEYREJECTED
352
    [EKEYREJECTED]        = TARGET_EKEYREJECTED,
353
#endif
354
#ifdef EOWNERDEAD
355
    [EOWNERDEAD]        = TARGET_EOWNERDEAD,
356
#endif
357
#ifdef ENOTRECOVERABLE
358
    [ENOTRECOVERABLE]        = TARGET_ENOTRECOVERABLE,
359
#endif
360
        };
361

    
362
static inline int host_to_target_errno(int err)
363
{
364
    if(host_to_target_errno_table[err])
365
        return host_to_target_errno_table[err];
366
    return err;
367
}
368

    
369
static inline target_long get_errno(target_long ret)
370
{
371
    if (ret == -1)
372
        return -host_to_target_errno(errno);
373
    else
374
        return ret;
375
}
376

    
377
static inline int is_error(target_long ret)
378
{
379
    return (target_ulong)ret >= (target_ulong)(-4096);
380
}
381

    
382
static target_ulong target_brk;
383
static target_ulong target_original_brk;
384

    
385
void target_set_brk(target_ulong new_brk)
386
{
387
    target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
388
}
389

    
390
target_long do_brk(target_ulong new_brk)
391
{
392
    target_ulong brk_page;
393
    target_long mapped_addr;
394
    int        new_alloc_size;
395

    
396
    if (!new_brk)
397
        return target_brk;
398
    if (new_brk < target_original_brk)
399
        return -ENOMEM;
400

    
401
    brk_page = HOST_PAGE_ALIGN(target_brk);
402

    
403
    /* If the new brk is less than this, set it and we're done... */
404
    if (new_brk < brk_page) {
405
        target_brk = new_brk;
406
            return target_brk;
407
    }
408

    
409
    /* We need to allocate more memory after the brk... */
410
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
411
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
412
                                        PROT_READ|PROT_WRITE,
413
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
414
    if (is_error(mapped_addr)) {
415
        return mapped_addr;
416
    } else {
417
        target_brk = new_brk;
418
            return target_brk;
419
    }
420
}
421

    
422
static inline fd_set *target_to_host_fds(fd_set *fds,
423
                                         target_long *target_fds, int n)
424
{
425
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
426
    return (fd_set *)target_fds;
427
#else
428
    int i, b;
429
    if (target_fds) {
430
        FD_ZERO(fds);
431
        for(i = 0;i < n; i++) {
432
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
433
                 (i & (TARGET_LONG_BITS - 1))) & 1;
434
            if (b)
435
                FD_SET(i, fds);
436
        }
437
        return fds;
438
    } else {
439
        return NULL;
440
    }
441
#endif
442
}
443

    
444
static inline void host_to_target_fds(target_long *target_fds,
445
                                      fd_set *fds, int n)
446
{
447
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
448
    /* nothing to do */
449
#else
450
    int i, nw, j, k;
451
    target_long v;
452

    
453
    if (target_fds) {
454
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
455
        k = 0;
456
        for(i = 0;i < nw; i++) {
457
            v = 0;
458
            for(j = 0; j < TARGET_LONG_BITS; j++) {
459
                v |= ((FD_ISSET(k, fds) != 0) << j);
460
                k++;
461
            }
462
            target_fds[i] = tswapl(v);
463
        }
464
    }
465
#endif
466
}
467

    
468
#if defined(__alpha__)
469
#define HOST_HZ 1024
470
#else
471
#define HOST_HZ 100
472
#endif
473

    
474
static inline target_long host_to_target_clock_t(long ticks)
475
{
476
#if HOST_HZ == TARGET_HZ
477
    return ticks;
478
#else
479
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
480
#endif
481
}
482

    
483
static inline void host_to_target_rusage(target_ulong target_addr,
484
                                         const struct rusage *rusage)
485
{
486
    struct target_rusage *target_rusage;
487

    
488
    lock_user_struct(target_rusage, target_addr, 0);
489
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
490
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
491
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
492
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
493
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
494
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
495
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
496
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
497
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
498
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
499
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
500
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
501
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
502
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
503
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
504
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
505
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
506
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
507
    unlock_user_struct(target_rusage, target_addr, 1);
508
}
509

    
510
static inline void target_to_host_timeval(struct timeval *tv,
511
                                          target_ulong target_addr)
512
{
513
    struct target_timeval *target_tv;
514

    
515
    lock_user_struct(target_tv, target_addr, 1);
516
    tv->tv_sec = tswapl(target_tv->tv_sec);
517
    tv->tv_usec = tswapl(target_tv->tv_usec);
518
    unlock_user_struct(target_tv, target_addr, 0);
519
}
520

    
521
static inline void host_to_target_timeval(target_ulong target_addr,
522
                                          const struct timeval *tv)
523
{
524
    struct target_timeval *target_tv;
525

    
526
    lock_user_struct(target_tv, target_addr, 0);
527
    target_tv->tv_sec = tswapl(tv->tv_sec);
528
    target_tv->tv_usec = tswapl(tv->tv_usec);
529
    unlock_user_struct(target_tv, target_addr, 1);
530
}
531

    
532

    
533
static target_long do_select(int n,
534
                             target_ulong rfd_p, target_ulong wfd_p,
535
                             target_ulong efd_p, target_ulong target_tv)
536
{
537
    fd_set rfds, wfds, efds;
538
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
539
    target_long *target_rfds, *target_wfds, *target_efds;
540
    struct timeval tv, *tv_ptr;
541
    target_long ret;
542
    int ok;
543

    
544
    if (rfd_p) {
545
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
546
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
547
    } else {
548
        target_rfds = NULL;
549
        rfds_ptr = NULL;
550
    }
551
    if (wfd_p) {
552
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
553
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
554
    } else {
555
        target_wfds = NULL;
556
        wfds_ptr = NULL;
557
    }
558
    if (efd_p) {
559
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
560
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
561
    } else {
562
        target_efds = NULL;
563
        efds_ptr = NULL;
564
    }
565

    
566
    if (target_tv) {
567
        target_to_host_timeval(&tv, target_tv);
568
        tv_ptr = &tv;
569
    } else {
570
        tv_ptr = NULL;
571
    }
572
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
573
    ok = !is_error(ret);
574

    
575
    if (ok) {
576
        host_to_target_fds(target_rfds, rfds_ptr, n);
577
        host_to_target_fds(target_wfds, wfds_ptr, n);
578
        host_to_target_fds(target_efds, efds_ptr, n);
579

    
580
        if (target_tv) {
581
            host_to_target_timeval(target_tv, &tv);
582
        }
583
    }
584
    if (target_rfds)
585
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
586
    if (target_wfds)
587
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
588
    if (target_efds)
589
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
590

    
591
    return ret;
592
}
593

    
594
static inline void target_to_host_sockaddr(struct sockaddr *addr,
595
                                           target_ulong target_addr,
596
                                           socklen_t len)
597
{
598
    struct target_sockaddr *target_saddr;
599

    
600
    target_saddr = lock_user(target_addr, len, 1);
601
    memcpy(addr, target_saddr, len);
602
    addr->sa_family = tswap16(target_saddr->sa_family);
603
    unlock_user(target_saddr, target_addr, 0);
604
}
605

    
606
static inline void host_to_target_sockaddr(target_ulong target_addr,
607
                                           struct sockaddr *addr,
608
                                           socklen_t len)
609
{
610
    struct target_sockaddr *target_saddr;
611

    
612
    target_saddr = lock_user(target_addr, len, 0);
613
    memcpy(target_saddr, addr, len);
614
    target_saddr->sa_family = tswap16(addr->sa_family);
615
    unlock_user(target_saddr, target_addr, len);
616
}
617

    
618
/* ??? Should this also swap msgh->name?  */
619
static inline void target_to_host_cmsg(struct msghdr *msgh,
620
                                       struct target_msghdr *target_msgh)
621
{
622
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
623
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
624
    socklen_t space = 0;
625

    
626
    while (cmsg && target_cmsg) {
627
        void *data = CMSG_DATA(cmsg);
628
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
629

    
630
        int len = tswapl(target_cmsg->cmsg_len)
631
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
632

    
633
        space += CMSG_SPACE(len);
634
        if (space > msgh->msg_controllen) {
635
            space -= CMSG_SPACE(len);
636
            gemu_log("Host cmsg overflow\n");
637
            break;
638
        }
639

    
640
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
641
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
642
        cmsg->cmsg_len = CMSG_LEN(len);
643

    
644
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
645
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
646
            memcpy(data, target_data, len);
647
        } else {
648
            int *fd = (int *)data;
649
            int *target_fd = (int *)target_data;
650
            int i, numfds = len / sizeof(int);
651

    
652
            for (i = 0; i < numfds; i++)
653
                fd[i] = tswap32(target_fd[i]);
654
        }
655

    
656
        cmsg = CMSG_NXTHDR(msgh, cmsg);
657
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
658
    }
659

    
660
    msgh->msg_controllen = space;
661
}
662

    
663
/* ??? Should this also swap msgh->name?  */
664
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
665
                                       struct msghdr *msgh)
666
{
667
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
668
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
669
    socklen_t space = 0;
670

    
671
    while (cmsg && target_cmsg) {
672
        void *data = CMSG_DATA(cmsg);
673
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
674

    
675
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
676

    
677
        space += TARGET_CMSG_SPACE(len);
678
        if (space > tswapl(target_msgh->msg_controllen)) {
679
            space -= TARGET_CMSG_SPACE(len);
680
            gemu_log("Target cmsg overflow\n");
681
            break;
682
        }
683

    
684
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
685
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
686
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
687

    
688
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
689
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
690
            memcpy(target_data, data, len);
691
        } else {
692
            int *fd = (int *)data;
693
            int *target_fd = (int *)target_data;
694
            int i, numfds = len / sizeof(int);
695

    
696
            for (i = 0; i < numfds; i++)
697
                target_fd[i] = tswap32(fd[i]);
698
        }
699

    
700
        cmsg = CMSG_NXTHDR(msgh, cmsg);
701
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
702
    }
703

    
704
    msgh->msg_controllen = tswapl(space);
705
}
706

    
707
static target_long do_setsockopt(int sockfd, int level, int optname,
708
                                 target_ulong optval, socklen_t optlen)
709
{
710
    target_long ret;
711
    int val;
712

    
713
    switch(level) {
714
    case SOL_TCP:
715
        /* TCP options all take an 'int' value.  */
716
        if (optlen < sizeof(uint32_t))
717
            return -EINVAL;
718

    
719
        val = tget32(optval);
720
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
721
        break;
722
    case SOL_IP:
723
        switch(optname) {
724
        case IP_TOS:
725
        case IP_TTL:
726
        case IP_HDRINCL:
727
        case IP_ROUTER_ALERT:
728
        case IP_RECVOPTS:
729
        case IP_RETOPTS:
730
        case IP_PKTINFO:
731
        case IP_MTU_DISCOVER:
732
        case IP_RECVERR:
733
        case IP_RECVTOS:
734
#ifdef IP_FREEBIND
735
        case IP_FREEBIND:
736
#endif
737
        case IP_MULTICAST_TTL:
738
        case IP_MULTICAST_LOOP:
739
            val = 0;
740
            if (optlen >= sizeof(uint32_t)) {
741
                val = tget32(optval);
742
            } else if (optlen >= 1) {
743
                val = tget8(optval);
744
            }
745
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
746
            break;
747
        default:
748
            goto unimplemented;
749
        }
750
        break;
751
    case TARGET_SOL_SOCKET:
752
        switch (optname) {
753
            /* Options with 'int' argument.  */
754
        case TARGET_SO_DEBUG:
755
                optname = SO_DEBUG;
756
                break;
757
        case TARGET_SO_REUSEADDR:
758
                optname = SO_REUSEADDR;
759
                break;
760
        case TARGET_SO_TYPE:
761
                optname = SO_TYPE;
762
                break;
763
        case TARGET_SO_ERROR:
764
                optname = SO_ERROR;
765
                break;
766
        case TARGET_SO_DONTROUTE:
767
                optname = SO_DONTROUTE;
768
                break;
769
        case TARGET_SO_BROADCAST:
770
                optname = SO_BROADCAST;
771
                break;
772
        case TARGET_SO_SNDBUF:
773
                optname = SO_SNDBUF;
774
                break;
775
        case TARGET_SO_RCVBUF:
776
                optname = SO_RCVBUF;
777
                break;
778
        case TARGET_SO_KEEPALIVE:
779
                optname = SO_KEEPALIVE;
780
                break;
781
        case TARGET_SO_OOBINLINE:
782
                optname = SO_OOBINLINE;
783
                break;
784
        case TARGET_SO_NO_CHECK:
785
                optname = SO_NO_CHECK;
786
                break;
787
        case TARGET_SO_PRIORITY:
788
                optname = SO_PRIORITY;
789
                break;
790
#ifdef SO_BSDCOMPAT
791
        case TARGET_SO_BSDCOMPAT:
792
                optname = SO_BSDCOMPAT;
793
                break;
794
#endif
795
        case TARGET_SO_PASSCRED:
796
                optname = SO_PASSCRED;
797
                break;
798
        case TARGET_SO_TIMESTAMP:
799
                optname = SO_TIMESTAMP;
800
                break;
801
        case TARGET_SO_RCVLOWAT:
802
                optname = SO_RCVLOWAT;
803
                break;
804
        case TARGET_SO_RCVTIMEO:
805
                optname = SO_RCVTIMEO;
806
                break;
807
        case TARGET_SO_SNDTIMEO:
808
                optname = SO_SNDTIMEO;
809
                break;
810
            break;
811
        default:
812
            goto unimplemented;
813
        }
814
        if (optlen < sizeof(uint32_t))
815
        return -EINVAL;
816

    
817
        val = tget32(optval);
818
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
819
        break;
820
    default:
821
    unimplemented:
822
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
823
        ret = -ENOSYS;
824
    }
825
    return ret;
826
}
827

    
828
static target_long do_getsockopt(int sockfd, int level, int optname,
829
                                 target_ulong optval, target_ulong optlen)
830
{
831
    target_long ret;
832
    int len, lv, val;
833

    
834
    switch(level) {
835
    case TARGET_SOL_SOCKET:
836
            level = SOL_SOCKET;
837
        switch (optname) {
838
        case TARGET_SO_LINGER:
839
        case TARGET_SO_RCVTIMEO:
840
        case TARGET_SO_SNDTIMEO:
841
        case TARGET_SO_PEERCRED:
842
        case TARGET_SO_PEERNAME:
843
            /* These don't just return a single integer */
844
            goto unimplemented;
845
        default:
846
            goto int_case;
847
        }
848
        break;
849
    case SOL_TCP:
850
        /* TCP options all take an 'int' value.  */
851
    int_case:
852
        len = tget32(optlen);
853
        if (len < 0)
854
            return -EINVAL;
855
        lv = sizeof(int);
856
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
857
        if (ret < 0)
858
            return ret;
859
        val = tswap32(val);
860
        if (len > lv)
861
            len = lv;
862
        if (len == 4)
863
            tput32(optval, val);
864
        else
865
            tput8(optval, val);
866
        tput32(optlen, len);
867
        break;
868
    case SOL_IP:
869
        switch(optname) {
870
        case IP_TOS:
871
        case IP_TTL:
872
        case IP_HDRINCL:
873
        case IP_ROUTER_ALERT:
874
        case IP_RECVOPTS:
875
        case IP_RETOPTS:
876
        case IP_PKTINFO:
877
        case IP_MTU_DISCOVER:
878
        case IP_RECVERR:
879
        case IP_RECVTOS:
880
#ifdef IP_FREEBIND
881
        case IP_FREEBIND:
882
#endif
883
        case IP_MULTICAST_TTL:
884
        case IP_MULTICAST_LOOP:
885
            len = tget32(optlen);
886
            if (len < 0)
887
                return -EINVAL;
888
            lv = sizeof(int);
889
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
890
            if (ret < 0)
891
                return ret;
892
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
893
                len = 1;
894
                tput32(optlen, len);
895
                tput8(optval, val);
896
            } else {
897
                if (len > sizeof(int))
898
                    len = sizeof(int);
899
                tput32(optlen, len);
900
                tput32(optval, val);
901
            }
902
            break;
903
        default:
904
            goto unimplemented;
905
        }
906
        break;
907
    default:
908
    unimplemented:
909
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
910
                 level, optname);
911
        ret = -ENOSYS;
912
        break;
913
    }
914
    return ret;
915
}
916

    
917
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
918
                       int count, int copy)
919
{
920
    struct target_iovec *target_vec;
921
    target_ulong base;
922
    int i;
923

    
924
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
925
    for(i = 0;i < count; i++) {
926
        base = tswapl(target_vec[i].iov_base);
927
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
928
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
929
    }
930
    unlock_user (target_vec, target_addr, 0);
931
}
932

    
933
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
934
                         int count, int copy)
935
{
936
    struct target_iovec *target_vec;
937
    target_ulong base;
938
    int i;
939

    
940
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
941
    for(i = 0;i < count; i++) {
942
        base = tswapl(target_vec[i].iov_base);
943
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
944
    }
945
    unlock_user (target_vec, target_addr, 0);
946
}
947

    
948
static target_long do_socket(int domain, int type, int protocol)
949
{
950
#if defined(TARGET_MIPS)
951
    switch(type) {
952
    case TARGET_SOCK_DGRAM:
953
        type = SOCK_DGRAM;
954
        break;
955
    case TARGET_SOCK_STREAM:
956
        type = SOCK_STREAM;
957
        break;
958
    case TARGET_SOCK_RAW:
959
        type = SOCK_RAW;
960
        break;
961
    case TARGET_SOCK_RDM:
962
        type = SOCK_RDM;
963
        break;
964
    case TARGET_SOCK_SEQPACKET:
965
        type = SOCK_SEQPACKET;
966
        break;
967
    case TARGET_SOCK_PACKET:
968
        type = SOCK_PACKET;
969
        break;
970
    }
971
#endif
972
    return get_errno(socket(domain, type, protocol));
973
}
974

    
975
static target_long do_bind(int sockfd, target_ulong target_addr,
976
                           socklen_t addrlen)
977
{
978
    void *addr = alloca(addrlen);
979

    
980
    target_to_host_sockaddr(addr, target_addr, addrlen);
981
    return get_errno(bind(sockfd, addr, addrlen));
982
}
983

    
984
static target_long do_connect(int sockfd, target_ulong target_addr,
985
                              socklen_t addrlen)
986
{
987
    void *addr = alloca(addrlen);
988

    
989
    target_to_host_sockaddr(addr, target_addr, addrlen);
990
    return get_errno(connect(sockfd, addr, addrlen));
991
}
992

    
993
static target_long do_sendrecvmsg(int fd, target_ulong target_msg,
994
                                  int flags, int send)
995
{
996
    target_long ret;
997
    struct target_msghdr *msgp;
998
    struct msghdr msg;
999
    int count;
1000
    struct iovec *vec;
1001
    target_ulong target_vec;
1002

    
1003
    lock_user_struct(msgp, target_msg, 1);
1004
    if (msgp->msg_name) {
1005
        msg.msg_namelen = tswap32(msgp->msg_namelen);
1006
        msg.msg_name = alloca(msg.msg_namelen);
1007
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1008
                                msg.msg_namelen);
1009
    } else {
1010
        msg.msg_name = NULL;
1011
        msg.msg_namelen = 0;
1012
    }
1013
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1014
    msg.msg_control = alloca(msg.msg_controllen);
1015
    msg.msg_flags = tswap32(msgp->msg_flags);
1016

    
1017
    count = tswapl(msgp->msg_iovlen);
1018
    vec = alloca(count * sizeof(struct iovec));
1019
    target_vec = tswapl(msgp->msg_iov);
1020
    lock_iovec(vec, target_vec, count, send);
1021
    msg.msg_iovlen = count;
1022
    msg.msg_iov = vec;
1023

    
1024
    if (send) {
1025
        target_to_host_cmsg(&msg, msgp);
1026
        ret = get_errno(sendmsg(fd, &msg, flags));
1027
    } else {
1028
        ret = get_errno(recvmsg(fd, &msg, flags));
1029
        if (!is_error(ret))
1030
            host_to_target_cmsg(msgp, &msg);
1031
    }
1032
    unlock_iovec(vec, target_vec, count, !send);
1033
    return ret;
1034
}
1035

    
1036
static target_long do_accept(int fd, target_ulong target_addr,
1037
                             target_ulong target_addrlen)
1038
{
1039
    socklen_t addrlen = tget32(target_addrlen);
1040
    void *addr = alloca(addrlen);
1041
    target_long ret;
1042

    
1043
    ret = get_errno(accept(fd, addr, &addrlen));
1044
    if (!is_error(ret)) {
1045
        host_to_target_sockaddr(target_addr, addr, addrlen);
1046
        tput32(target_addrlen, addrlen);
1047
    }
1048
    return ret;
1049
}
1050

    
1051
static target_long do_getpeername(int fd, target_ulong target_addr,
1052
                                  target_ulong target_addrlen)
1053
{
1054
    socklen_t addrlen = tget32(target_addrlen);
1055
    void *addr = alloca(addrlen);
1056
    target_long ret;
1057

    
1058
    ret = get_errno(getpeername(fd, addr, &addrlen));
1059
    if (!is_error(ret)) {
1060
        host_to_target_sockaddr(target_addr, addr, addrlen);
1061
        tput32(target_addrlen, addrlen);
1062
    }
1063
    return ret;
1064
}
1065

    
1066
static target_long do_getsockname(int fd, target_ulong target_addr,
1067
                                  target_ulong target_addrlen)
1068
{
1069
    socklen_t addrlen = tget32(target_addrlen);
1070
    void *addr = alloca(addrlen);
1071
    target_long ret;
1072

    
1073
    ret = get_errno(getsockname(fd, addr, &addrlen));
1074
    if (!is_error(ret)) {
1075
        host_to_target_sockaddr(target_addr, addr, addrlen);
1076
        tput32(target_addrlen, addrlen);
1077
    }
1078
    return ret;
1079
}
1080

    
1081
static target_long do_socketpair(int domain, int type, int protocol,
1082
                                 target_ulong target_tab)
1083
{
1084
    int tab[2];
1085
    target_long ret;
1086

    
1087
    ret = get_errno(socketpair(domain, type, protocol, tab));
1088
    if (!is_error(ret)) {
1089
        tput32(target_tab, tab[0]);
1090
        tput32(target_tab + 4, tab[1]);
1091
    }
1092
    return ret;
1093
}
1094

    
1095
static target_long do_sendto(int fd, target_ulong msg, size_t len, int flags,
1096
                             target_ulong target_addr, socklen_t addrlen)
1097
{
1098
    void *addr;
1099
    void *host_msg;
1100
    target_long ret;
1101

    
1102
    host_msg = lock_user(msg, len, 1);
1103
    if (target_addr) {
1104
        addr = alloca(addrlen);
1105
        target_to_host_sockaddr(addr, target_addr, addrlen);
1106
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1107
    } else {
1108
        ret = get_errno(send(fd, host_msg, len, flags));
1109
    }
1110
    unlock_user(host_msg, msg, 0);
1111
    return ret;
1112
}
1113

    
1114
static target_long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
1115
                               target_ulong target_addr,
1116
                               target_ulong target_addrlen)
1117
{
1118
    socklen_t addrlen;
1119
    void *addr;
1120
    void *host_msg;
1121
    target_long ret;
1122

    
1123
    host_msg = lock_user(msg, len, 0);
1124
    if (target_addr) {
1125
        addrlen = tget32(target_addrlen);
1126
        addr = alloca(addrlen);
1127
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1128
    } else {
1129
        addr = NULL; /* To keep compiler quiet.  */
1130
        ret = get_errno(recv(fd, host_msg, len, flags));
1131
    }
1132
    if (!is_error(ret)) {
1133
        if (target_addr) {
1134
            host_to_target_sockaddr(target_addr, addr, addrlen);
1135
            tput32(target_addrlen, addrlen);
1136
        }
1137
        unlock_user(host_msg, msg, len);
1138
    } else {
1139
        unlock_user(host_msg, msg, 0);
1140
    }
1141
    return ret;
1142
}
1143

    
1144
#ifdef TARGET_NR_socketcall
1145
static target_long do_socketcall(int num, target_ulong vptr)
1146
{
1147
    target_long ret;
1148
    const int n = sizeof(target_ulong);
1149

    
1150
    switch(num) {
1151
    case SOCKOP_socket:
1152
        {
1153
            int domain = tgetl(vptr);
1154
            int type = tgetl(vptr + n);
1155
            int protocol = tgetl(vptr + 2 * n);
1156
            ret = do_socket(domain, type, protocol);
1157
        }
1158
        break;
1159
    case SOCKOP_bind:
1160
        {
1161
            int sockfd = tgetl(vptr);
1162
            target_ulong target_addr = tgetl(vptr + n);
1163
            socklen_t addrlen = tgetl(vptr + 2 * n);
1164
            ret = do_bind(sockfd, target_addr, addrlen);
1165
        }
1166
        break;
1167
    case SOCKOP_connect:
1168
        {
1169
            int sockfd = tgetl(vptr);
1170
            target_ulong target_addr = tgetl(vptr + n);
1171
            socklen_t addrlen = tgetl(vptr + 2 * n);
1172
            ret = do_connect(sockfd, target_addr, addrlen);
1173
        }
1174
        break;
1175
    case SOCKOP_listen:
1176
        {
1177
            int sockfd = tgetl(vptr);
1178
            int backlog = tgetl(vptr + n);
1179
            ret = get_errno(listen(sockfd, backlog));
1180
        }
1181
        break;
1182
    case SOCKOP_accept:
1183
        {
1184
            int sockfd = tgetl(vptr);
1185
            target_ulong target_addr = tgetl(vptr + n);
1186
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1187
            ret = do_accept(sockfd, target_addr, target_addrlen);
1188
        }
1189
        break;
1190
    case SOCKOP_getsockname:
1191
        {
1192
            int sockfd = tgetl(vptr);
1193
            target_ulong target_addr = tgetl(vptr + n);
1194
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1195
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
1196
        }
1197
        break;
1198
    case SOCKOP_getpeername:
1199
        {
1200
            int sockfd = tgetl(vptr);
1201
            target_ulong target_addr = tgetl(vptr + n);
1202
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1203
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1204
        }
1205
        break;
1206
    case SOCKOP_socketpair:
1207
        {
1208
            int domain = tgetl(vptr);
1209
            int type = tgetl(vptr + n);
1210
            int protocol = tgetl(vptr + 2 * n);
1211
            target_ulong tab = tgetl(vptr + 3 * n);
1212
            ret = do_socketpair(domain, type, protocol, tab);
1213
        }
1214
        break;
1215
    case SOCKOP_send:
1216
        {
1217
            int sockfd = tgetl(vptr);
1218
            target_ulong msg = tgetl(vptr + n);
1219
            size_t len = tgetl(vptr + 2 * n);
1220
            int flags = tgetl(vptr + 3 * n);
1221
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1222
        }
1223
        break;
1224
    case SOCKOP_recv:
1225
        {
1226
            int sockfd = tgetl(vptr);
1227
            target_ulong msg = tgetl(vptr + n);
1228
            size_t len = tgetl(vptr + 2 * n);
1229
            int flags = tgetl(vptr + 3 * n);
1230
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1231
        }
1232
        break;
1233
    case SOCKOP_sendto:
1234
        {
1235
            int sockfd = tgetl(vptr);
1236
            target_ulong msg = tgetl(vptr + n);
1237
            size_t len = tgetl(vptr + 2 * n);
1238
            int flags = tgetl(vptr + 3 * n);
1239
            target_ulong addr = tgetl(vptr + 4 * n);
1240
            socklen_t addrlen = tgetl(vptr + 5 * n);
1241
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1242
        }
1243
        break;
1244
    case SOCKOP_recvfrom:
1245
        {
1246
            int sockfd = tgetl(vptr);
1247
            target_ulong msg = tgetl(vptr + n);
1248
            size_t len = tgetl(vptr + 2 * n);
1249
            int flags = tgetl(vptr + 3 * n);
1250
            target_ulong addr = tgetl(vptr + 4 * n);
1251
            target_ulong addrlen = tgetl(vptr + 5 * n);
1252
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1253
        }
1254
        break;
1255
    case SOCKOP_shutdown:
1256
        {
1257
            int sockfd = tgetl(vptr);
1258
            int how = tgetl(vptr + n);
1259

    
1260
            ret = get_errno(shutdown(sockfd, how));
1261
        }
1262
        break;
1263
    case SOCKOP_sendmsg:
1264
    case SOCKOP_recvmsg:
1265
        {
1266
            int fd;
1267
            target_ulong target_msg;
1268
            int flags;
1269

    
1270
            fd = tgetl(vptr);
1271
            target_msg = tgetl(vptr + n);
1272
            flags = tgetl(vptr + 2 * n);
1273

    
1274
            ret = do_sendrecvmsg(fd, target_msg, flags,
1275
                                 (num == SOCKOP_sendmsg));
1276
        }
1277
        break;
1278
    case SOCKOP_setsockopt:
1279
        {
1280
            int sockfd = tgetl(vptr);
1281
            int level = tgetl(vptr + n);
1282
            int optname = tgetl(vptr + 2 * n);
1283
            target_ulong optval = tgetl(vptr + 3 * n);
1284
            socklen_t optlen = tgetl(vptr + 4 * n);
1285

    
1286
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1287
        }
1288
        break;
1289
    case SOCKOP_getsockopt:
1290
        {
1291
            int sockfd = tgetl(vptr);
1292
            int level = tgetl(vptr + n);
1293
            int optname = tgetl(vptr + 2 * n);
1294
            target_ulong optval = tgetl(vptr + 3 * n);
1295
            target_ulong poptlen = tgetl(vptr + 4 * n);
1296

    
1297
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1298
        }
1299
        break;
1300
    default:
1301
        gemu_log("Unsupported socketcall: %d\n", num);
1302
        ret = -ENOSYS;
1303
        break;
1304
    }
1305
    return ret;
1306
}
1307
#endif
1308

    
1309
#ifdef TARGET_NR_ipc
1310
#define N_SHM_REGIONS        32
1311

    
1312
static struct shm_region {
1313
    uint32_t        start;
1314
    uint32_t        size;
1315
} shm_regions[N_SHM_REGIONS];
1316

    
1317
struct target_ipc_perm
1318
{
1319
    target_long __key;
1320
    target_ulong uid;
1321
    target_ulong gid;
1322
    target_ulong cuid;
1323
    target_ulong cgid;
1324
    unsigned short int mode;
1325
    unsigned short int __pad1;
1326
    unsigned short int __seq;
1327
    unsigned short int __pad2;
1328
    target_ulong __unused1;
1329
    target_ulong __unused2;
1330
};
1331

    
1332
struct target_semid_ds
1333
{
1334
  struct target_ipc_perm sem_perm;
1335
  target_ulong sem_otime;
1336
  target_ulong __unused1;
1337
  target_ulong sem_ctime;
1338
  target_ulong __unused2;
1339
  target_ulong sem_nsems;
1340
  target_ulong __unused3;
1341
  target_ulong __unused4;
1342
};
1343

    
1344
static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip,
1345
                                           target_ulong target_addr)
1346
{
1347
    struct target_ipc_perm *target_ip;
1348
    struct target_semid_ds *target_sd;
1349

    
1350
    lock_user_struct(target_sd, target_addr, 1);
1351
    target_ip=&(target_sd->sem_perm);
1352
    host_ip->__key = tswapl(target_ip->__key);
1353
    host_ip->uid = tswapl(target_ip->uid);
1354
    host_ip->gid = tswapl(target_ip->gid);
1355
    host_ip->cuid = tswapl(target_ip->cuid);
1356
    host_ip->cgid = tswapl(target_ip->cgid);
1357
    host_ip->mode = tswapl(target_ip->mode);
1358
    unlock_user_struct(target_sd, target_addr, 0);
1359
}
1360

    
1361
static inline void host_to_target_ipc_perm(target_ulong target_addr,
1362
                                           struct ipc_perm *host_ip)
1363
{
1364
    struct target_ipc_perm *target_ip;
1365
    struct target_semid_ds *target_sd;
1366

    
1367
    lock_user_struct(target_sd, target_addr, 0);
1368
    target_ip = &(target_sd->sem_perm);
1369
    target_ip->__key = tswapl(host_ip->__key);
1370
    target_ip->uid = tswapl(host_ip->uid);
1371
    target_ip->gid = tswapl(host_ip->gid);
1372
    target_ip->cuid = tswapl(host_ip->cuid);
1373
    target_ip->cgid = tswapl(host_ip->cgid);
1374
    target_ip->mode = tswapl(host_ip->mode);
1375
    unlock_user_struct(target_sd, target_addr, 1);
1376
}
1377

    
1378
static inline void target_to_host_semid_ds(struct semid_ds *host_sd,
1379
                                          target_ulong target_addr)
1380
{
1381
    struct target_semid_ds *target_sd;
1382

    
1383
    lock_user_struct(target_sd, target_addr, 1);
1384
    target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
1385
    host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
1386
    host_sd->sem_otime = tswapl(target_sd->sem_otime);
1387
    host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
1388
    unlock_user_struct(target_sd, target_addr, 0);
1389
}
1390

    
1391
static inline void host_to_target_semid_ds(target_ulong target_addr,
1392
                                           struct semid_ds *host_sd)
1393
{
1394
    struct target_semid_ds *target_sd;
1395

    
1396
    lock_user_struct(target_sd, target_addr, 0);
1397
    host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
1398
    target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
1399
    target_sd->sem_otime = tswapl(host_sd->sem_otime);
1400
    target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
1401
    unlock_user_struct(target_sd, target_addr, 1);
1402
}
1403

    
1404
union semun {
1405
        int val;
1406
        struct semid_ds *buf;
1407
        unsigned short *array;
1408
};
1409

    
1410
union target_semun {
1411
        int val;
1412
        target_long buf;
1413
        unsigned short int *array;
1414
};
1415

    
1416
static inline void target_to_host_semun(int cmd,
1417
                                        union semun *host_su,
1418
                                        target_ulong target_addr,
1419
                                        struct semid_ds *ds)
1420
{
1421
    union target_semun *target_su;
1422

    
1423
    switch( cmd ) {
1424
        case IPC_STAT:
1425
        case IPC_SET:
1426
           lock_user_struct(target_su, target_addr, 1);
1427
           target_to_host_semid_ds(ds,target_su->buf);
1428
           host_su->buf = ds;
1429
           unlock_user_struct(target_su, target_addr, 0);
1430
           break;
1431
        case GETVAL:
1432
        case SETVAL:
1433
           lock_user_struct(target_su, target_addr, 1);
1434
           host_su->val = tswapl(target_su->val);
1435
           unlock_user_struct(target_su, target_addr, 0);
1436
           break;
1437
        case GETALL:
1438
        case SETALL:
1439
           lock_user_struct(target_su, target_addr, 1);
1440
           *host_su->array = tswap16(*target_su->array);
1441
           unlock_user_struct(target_su, target_addr, 0);
1442
           break;
1443
        default:
1444
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1445
    }
1446
}
1447

    
1448
static inline void host_to_target_semun(int cmd,
1449
                                        target_ulong target_addr,
1450
                                        union semun *host_su,
1451
                                        struct semid_ds *ds)
1452
{
1453
    union target_semun *target_su;
1454

    
1455
    switch( cmd ) {
1456
        case IPC_STAT:
1457
        case IPC_SET:
1458
           lock_user_struct(target_su, target_addr, 0);
1459
           host_to_target_semid_ds(target_su->buf,ds);
1460
           unlock_user_struct(target_su, target_addr, 1);
1461
           break;
1462
        case GETVAL:
1463
        case SETVAL:
1464
           lock_user_struct(target_su, target_addr, 0);
1465
           target_su->val = tswapl(host_su->val);
1466
           unlock_user_struct(target_su, target_addr, 1);
1467
           break;
1468
        case GETALL:
1469
        case SETALL:
1470
           lock_user_struct(target_su, target_addr, 0);
1471
           *target_su->array = tswap16(*host_su->array);
1472
           unlock_user_struct(target_su, target_addr, 1);
1473
           break;
1474
        default:
1475
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1476
    }
1477
}
1478

    
1479
static inline target_long do_semctl(int first, int second, int third,
1480
                                    target_long ptr)
1481
{
1482
    union semun arg;
1483
    struct semid_ds dsarg;
1484
    int cmd = third&0xff;
1485
    target_long ret = 0;
1486

    
1487
    switch( cmd ) {
1488
        case GETVAL:
1489
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1490
            ret = get_errno(semctl(first, second, cmd, arg));
1491
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1492
            break;
1493
        case SETVAL:
1494
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1495
            ret = get_errno(semctl(first, second, cmd, arg));
1496
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1497
            break;
1498
        case GETALL:
1499
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1500
            ret = get_errno(semctl(first, second, cmd, arg));
1501
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1502
            break;
1503
        case SETALL:
1504
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1505
            ret = get_errno(semctl(first, second, cmd, arg));
1506
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1507
            break;
1508
        case IPC_STAT:
1509
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1510
            ret = get_errno(semctl(first, second, cmd, arg));
1511
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1512
            break;
1513
        case IPC_SET:
1514
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1515
            ret = get_errno(semctl(first, second, cmd, arg));
1516
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1517
            break;
1518
    default:
1519
            ret = get_errno(semctl(first, second, cmd, arg));
1520
    }
1521

    
1522
    return ret;
1523
}
1524

    
1525
struct target_msqid_ds
1526
{
1527
  struct target_ipc_perm msg_perm;
1528
  target_ulong msg_stime;
1529
  target_ulong __unused1;
1530
  target_ulong msg_rtime;
1531
  target_ulong __unused2;
1532
  target_ulong msg_ctime;
1533
  target_ulong __unused3;
1534
  target_ulong __msg_cbytes;
1535
  target_ulong msg_qnum;
1536
  target_ulong msg_qbytes;
1537
  target_ulong msg_lspid;
1538
  target_ulong msg_lrpid;
1539
  target_ulong __unused4;
1540
  target_ulong __unused5;
1541
};
1542

    
1543
static inline void target_to_host_msqid_ds(struct msqid_ds *host_md,
1544
                                           target_ulong target_addr)
1545
{
1546
    struct target_msqid_ds *target_md;
1547

    
1548
    lock_user_struct(target_md, target_addr, 1);
1549
    target_to_host_ipc_perm(&(host_md->msg_perm),target_addr);
1550
    host_md->msg_stime = tswapl(target_md->msg_stime);
1551
    host_md->msg_rtime = tswapl(target_md->msg_rtime);
1552
    host_md->msg_ctime = tswapl(target_md->msg_ctime);
1553
    host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
1554
    host_md->msg_qnum = tswapl(target_md->msg_qnum);
1555
    host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
1556
    host_md->msg_lspid = tswapl(target_md->msg_lspid);
1557
    host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
1558
    unlock_user_struct(target_md, target_addr, 0);
1559
}
1560

    
1561
static inline void host_to_target_msqid_ds(target_ulong target_addr,
1562
                                           struct msqid_ds *host_md)
1563
{
1564
    struct target_msqid_ds *target_md;
1565

    
1566
    lock_user_struct(target_md, target_addr, 0);
1567
    host_to_target_ipc_perm(target_addr,&(host_md->msg_perm));
1568
    target_md->msg_stime = tswapl(host_md->msg_stime);
1569
    target_md->msg_rtime = tswapl(host_md->msg_rtime);
1570
    target_md->msg_ctime = tswapl(host_md->msg_ctime);
1571
    target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
1572
    target_md->msg_qnum = tswapl(host_md->msg_qnum);
1573
    target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
1574
    target_md->msg_lspid = tswapl(host_md->msg_lspid);
1575
    target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
1576
    unlock_user_struct(target_md, target_addr, 1);
1577
}
1578

    
1579
static inline target_long do_msgctl(int first, int second, target_long ptr)
1580
{
1581
    struct msqid_ds dsarg;
1582
    int cmd = second&0xff;
1583
    target_long ret = 0;
1584
    switch( cmd ) {
1585
    case IPC_STAT:
1586
    case IPC_SET:
1587
        target_to_host_msqid_ds(&dsarg,ptr);
1588
        ret = get_errno(msgctl(first, cmd, &dsarg));
1589
        host_to_target_msqid_ds(ptr,&dsarg);
1590
    default:
1591
        ret = get_errno(msgctl(first, cmd, &dsarg));
1592
    }
1593
    return ret;
1594
}
1595

    
1596
struct target_msgbuf {
1597
        target_ulong mtype;
1598
        char        mtext[1];
1599
};
1600

    
1601
static inline target_long do_msgsnd(int msqid, target_long msgp,
1602
                                    unsigned int msgsz, int msgflg)
1603
{
1604
    struct target_msgbuf *target_mb;
1605
    struct msgbuf *host_mb;
1606
    target_long ret = 0;
1607

    
1608
    lock_user_struct(target_mb,msgp,0);
1609
    host_mb = malloc(msgsz+sizeof(long));
1610
    host_mb->mtype = tswapl(target_mb->mtype);
1611
    memcpy(host_mb->mtext,target_mb->mtext,msgsz);
1612
    ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
1613
    free(host_mb);
1614
    unlock_user_struct(target_mb, msgp, 0);
1615

    
1616
    return ret;
1617
}
1618

    
1619
static inline target_long do_msgrcv(int msqid, target_long msgp,
1620
                                    unsigned int msgsz, int msgtype,
1621
                                    int msgflg)
1622
{
1623
    struct target_msgbuf *target_mb;
1624
    struct msgbuf *host_mb;
1625
    target_long ret = 0;
1626

    
1627
    lock_user_struct(target_mb, msgp, 0);
1628
    host_mb = malloc(msgsz+sizeof(long));
1629
    ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg));
1630
    if (ret > 0)
1631
            memcpy(target_mb->mtext, host_mb->mtext, ret);
1632
    target_mb->mtype = tswapl(host_mb->mtype);
1633
    free(host_mb);
1634
    unlock_user_struct(target_mb, msgp, 0);
1635

    
1636
    return ret;
1637
}
1638

    
1639
/* ??? This only works with linear mappings.  */
1640
static target_long do_ipc(unsigned int call, int first,
1641
                          int second, int third,
1642
                          target_long ptr, target_long fifth)
1643
{
1644
    int version;
1645
    target_long ret = 0;
1646
    unsigned long raddr;
1647
    struct shmid_ds shm_info;
1648
    int i;
1649

    
1650
    version = call >> 16;
1651
    call &= 0xffff;
1652

    
1653
    switch (call) {
1654
    case IPCOP_semop:
1655
        ret = get_errno(semop(first,(struct sembuf *) ptr, second));
1656
        break;
1657

    
1658
    case IPCOP_semget:
1659
        ret = get_errno(semget(first, second, third));
1660
        break;
1661

    
1662
    case IPCOP_semctl:
1663
        ret = do_semctl(first, second, third, ptr);
1664
        break;
1665

    
1666
    case IPCOP_semtimedop:
1667
        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
1668
        ret = -ENOSYS;
1669
        break;
1670

    
1671
        case IPCOP_msgget:
1672
                ret = get_errno(msgget(first, second));
1673
                break;
1674

    
1675
        case IPCOP_msgsnd:
1676
                ret = do_msgsnd(first, ptr, second, third);
1677
                break;
1678

    
1679
        case IPCOP_msgctl:
1680
                ret = do_msgctl(first, second, ptr);
1681
                break;
1682

    
1683
        case IPCOP_msgrcv:
1684
                {
1685
                      struct ipc_kludge
1686
                      {
1687
                              void *__unbounded msgp;
1688
                              long int msgtyp;
1689
                      };
1690

    
1691
                      struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
1692
                      struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1693

    
1694
                      ret = do_msgrcv(first, (long)msgp, second, 0, third);
1695

    
1696
                }
1697
                break;
1698

    
1699
    case IPCOP_shmat:
1700
        /* SHM_* flags are the same on all linux platforms */
1701
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1702
        if (is_error(ret))
1703
            break;
1704
        raddr = ret;
1705
        /* find out the length of the shared memory segment */
1706

    
1707
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1708
        if (is_error(ret)) {
1709
            /* can't get length, bail out */
1710
            shmdt((void *) raddr);
1711
            break;
1712
        }
1713
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1714
                       PAGE_VALID | PAGE_READ |
1715
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1716
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1717
            if (shm_regions[i].start == 0) {
1718
                shm_regions[i].start = raddr;
1719
                shm_regions[i].size = shm_info.shm_segsz;
1720
                break;
1721
            }
1722
        }
1723
        if (put_user(raddr, (target_ulong *)third))
1724
            return -EFAULT;
1725
        ret = 0;
1726
        break;
1727
    case IPCOP_shmdt:
1728
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1729
            if (shm_regions[i].start == ptr) {
1730
                shm_regions[i].start = 0;
1731
                page_set_flags(ptr, shm_regions[i].size, 0);
1732
                break;
1733
            }
1734
        }
1735
        ret = get_errno(shmdt((void *) ptr));
1736
        break;
1737

    
1738
    case IPCOP_shmget:
1739
        /* IPC_* flag values are the same on all linux platforms */
1740
        ret = get_errno(shmget(first, second, third));
1741
        break;
1742

    
1743
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1744
    case IPCOP_shmctl:
1745
        switch(second) {
1746
        case IPC_RMID:
1747
        case SHM_LOCK:
1748
        case SHM_UNLOCK:
1749
            ret = get_errno(shmctl(first, second, NULL));
1750
            break;
1751
        default:
1752
            goto unimplemented;
1753
        }
1754
        break;
1755
    default:
1756
    unimplemented:
1757
        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
1758
        ret = -ENOSYS;
1759
        break;
1760
    }
1761
    return ret;
1762
}
1763
#endif
1764

    
1765
/* kernel structure types definitions */
1766
#define IFNAMSIZ        16
1767

    
1768
#define STRUCT(name, list...) STRUCT_ ## name,
1769
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1770
enum {
1771
#include "syscall_types.h"
1772
};
1773
#undef STRUCT
1774
#undef STRUCT_SPECIAL
1775

    
1776
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1777
#define STRUCT_SPECIAL(name)
1778
#include "syscall_types.h"
1779
#undef STRUCT
1780
#undef STRUCT_SPECIAL
1781

    
1782
typedef struct IOCTLEntry {
1783
    unsigned int target_cmd;
1784
    unsigned int host_cmd;
1785
    const char *name;
1786
    int access;
1787
    const argtype arg_type[5];
1788
} IOCTLEntry;
1789

    
1790
#define IOC_R 0x0001
1791
#define IOC_W 0x0002
1792
#define IOC_RW (IOC_R | IOC_W)
1793

    
1794
#define MAX_STRUCT_SIZE 4096
1795

    
1796
IOCTLEntry ioctl_entries[] = {
1797
#define IOCTL(cmd, access, types...) \
1798
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1799
#include "ioctls.h"
1800
    { 0, 0, },
1801
};
1802

    
1803
/* ??? Implement proper locking for ioctls.  */
1804
static target_long do_ioctl(int fd, target_long cmd, target_long arg)
1805
{
1806
    const IOCTLEntry *ie;
1807
    const argtype *arg_type;
1808
    target_long ret;
1809
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1810
    int target_size;
1811
    void *argptr;
1812

    
1813
    ie = ioctl_entries;
1814
    for(;;) {
1815
        if (ie->target_cmd == 0) {
1816
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
1817
            return -ENOSYS;
1818
        }
1819
        if (ie->target_cmd == cmd)
1820
            break;
1821
        ie++;
1822
    }
1823
    arg_type = ie->arg_type;
1824
#if defined(DEBUG)
1825
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
1826
#endif
1827
    switch(arg_type[0]) {
1828
    case TYPE_NULL:
1829
        /* no argument */
1830
        ret = get_errno(ioctl(fd, ie->host_cmd));
1831
        break;
1832
    case TYPE_PTRVOID:
1833
    case TYPE_INT:
1834
        /* int argment */
1835
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1836
        break;
1837
    case TYPE_PTR:
1838
        arg_type++;
1839
        target_size = thunk_type_size(arg_type, 0);
1840
        switch(ie->access) {
1841
        case IOC_R:
1842
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1843
            if (!is_error(ret)) {
1844
                argptr = lock_user(arg, target_size, 0);
1845
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1846
                unlock_user(argptr, arg, target_size);
1847
            }
1848
            break;
1849
        case IOC_W:
1850
            argptr = lock_user(arg, target_size, 1);
1851
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1852
            unlock_user(argptr, arg, 0);
1853
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1854
            break;
1855
        default:
1856
        case IOC_RW:
1857
            argptr = lock_user(arg, target_size, 1);
1858
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1859
            unlock_user(argptr, arg, 0);
1860
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1861
            if (!is_error(ret)) {
1862
                argptr = lock_user(arg, target_size, 0);
1863
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1864
                unlock_user(argptr, arg, target_size);
1865
            }
1866
            break;
1867
        }
1868
        break;
1869
    default:
1870
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
1871
                 (long)cmd, arg_type[0]);
1872
        ret = -ENOSYS;
1873
        break;
1874
    }
1875
    return ret;
1876
}
1877

    
1878
bitmask_transtbl iflag_tbl[] = {
1879
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1880
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1881
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1882
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1883
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1884
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1885
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1886
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1887
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1888
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1889
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1890
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1891
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1892
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1893
        { 0, 0, 0, 0 }
1894
};
1895

    
1896
bitmask_transtbl oflag_tbl[] = {
1897
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1898
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1899
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1900
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1901
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1902
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1903
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1904
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1905
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1906
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1907
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1908
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1909
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1910
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1911
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1912
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1913
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1914
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1915
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1916
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1917
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1918
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1919
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1920
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1921
        { 0, 0, 0, 0 }
1922
};
1923

    
1924
bitmask_transtbl cflag_tbl[] = {
1925
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1926
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1927
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1928
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1929
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1930
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1931
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1932
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1933
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1934
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1935
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1936
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1937
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1938
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1939
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1940
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1941
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1942
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1943
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1944
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1945
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1946
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1947
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1948
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1949
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1950
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1951
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1952
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1953
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1954
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1955
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1956
        { 0, 0, 0, 0 }
1957
};
1958

    
1959
bitmask_transtbl lflag_tbl[] = {
1960
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1961
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1962
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1963
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1964
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1965
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1966
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1967
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1968
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1969
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1970
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1971
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1972
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1973
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1974
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1975
        { 0, 0, 0, 0 }
1976
};
1977

    
1978
static void target_to_host_termios (void *dst, const void *src)
1979
{
1980
    struct host_termios *host = dst;
1981
    const struct target_termios *target = src;
1982

    
1983
    host->c_iflag =
1984
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1985
    host->c_oflag =
1986
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1987
    host->c_cflag =
1988
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1989
    host->c_lflag =
1990
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1991
    host->c_line = target->c_line;
1992

    
1993
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1994
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1995
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1996
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1997
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1998
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1999
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
2000
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
2001
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
2002
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
2003
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
2004
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
2005
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
2006
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
2007
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
2008
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
2009
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
2010
}
2011

    
2012
static void host_to_target_termios (void *dst, const void *src)
2013
{
2014
    struct target_termios *target = dst;
2015
    const struct host_termios *host = src;
2016

    
2017
    target->c_iflag =
2018
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
2019
    target->c_oflag =
2020
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
2021
    target->c_cflag =
2022
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
2023
    target->c_lflag =
2024
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
2025
    target->c_line = host->c_line;
2026

    
2027
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
2028
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
2029
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
2030
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
2031
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
2032
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
2033
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
2034
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
2035
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
2036
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
2037
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
2038
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
2039
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
2040
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
2041
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
2042
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
2043
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
2044
}
2045

    
2046
StructEntry struct_termios_def = {
2047
    .convert = { host_to_target_termios, target_to_host_termios },
2048
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
2049
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
2050
};
2051

    
2052
static bitmask_transtbl mmap_flags_tbl[] = {
2053
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
2054
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
2055
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
2056
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
2057
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
2058
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
2059
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
2060
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
2061
        { 0, 0, 0, 0 }
2062
};
2063

    
2064
static bitmask_transtbl fcntl_flags_tbl[] = {
2065
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
2066
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
2067
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
2068
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
2069
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
2070
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
2071
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
2072
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
2073
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
2074
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
2075
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
2076
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
2077
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
2078
#if defined(O_DIRECT)
2079
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
2080
#endif
2081
        { 0, 0, 0, 0 }
2082
};
2083

    
2084
#if defined(TARGET_I386)
2085

    
2086
/* NOTE: there is really one LDT for all the threads */
2087
uint8_t *ldt_table;
2088

    
2089
static int read_ldt(target_ulong ptr, unsigned long bytecount)
2090
{
2091
    int size;
2092
    void *p;
2093

    
2094
    if (!ldt_table)
2095
        return 0;
2096
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
2097
    if (size > bytecount)
2098
        size = bytecount;
2099
    p = lock_user(ptr, size, 0);
2100
    /* ??? Shoudl this by byteswapped?  */
2101
    memcpy(p, ldt_table, size);
2102
    unlock_user(p, ptr, size);
2103
    return size;
2104
}
2105

    
2106
/* XXX: add locking support */
2107
static int write_ldt(CPUX86State *env,
2108
                     target_ulong ptr, unsigned long bytecount, int oldmode)
2109
{
2110
    struct target_modify_ldt_ldt_s ldt_info;
2111
    struct target_modify_ldt_ldt_s *target_ldt_info;
2112
    int seg_32bit, contents, read_exec_only, limit_in_pages;
2113
    int seg_not_present, useable;
2114
    uint32_t *lp, entry_1, entry_2;
2115

    
2116
    if (bytecount != sizeof(ldt_info))
2117
        return -EINVAL;
2118
    lock_user_struct(target_ldt_info, ptr, 1);
2119
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2120
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2121
    ldt_info.limit = tswap32(target_ldt_info->limit);
2122
    ldt_info.flags = tswap32(target_ldt_info->flags);
2123
    unlock_user_struct(target_ldt_info, ptr, 0);
2124

    
2125
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
2126
        return -EINVAL;
2127
    seg_32bit = ldt_info.flags & 1;
2128
    contents = (ldt_info.flags >> 1) & 3;
2129
    read_exec_only = (ldt_info.flags >> 3) & 1;
2130
    limit_in_pages = (ldt_info.flags >> 4) & 1;
2131
    seg_not_present = (ldt_info.flags >> 5) & 1;
2132
    useable = (ldt_info.flags >> 6) & 1;
2133

    
2134
    if (contents == 3) {
2135
        if (oldmode)
2136
            return -EINVAL;
2137
        if (seg_not_present == 0)
2138
            return -EINVAL;
2139
    }
2140
    /* allocate the LDT */
2141
    if (!ldt_table) {
2142
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2143
        if (!ldt_table)
2144
            return -ENOMEM;
2145
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2146
        env->ldt.base = h2g(ldt_table);
2147
        env->ldt.limit = 0xffff;
2148
    }
2149

    
2150
    /* NOTE: same code as Linux kernel */
2151
    /* Allow LDTs to be cleared by the user. */
2152
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2153
        if (oldmode ||
2154
            (contents == 0                &&
2155
             read_exec_only == 1        &&
2156
             seg_32bit == 0                &&
2157
             limit_in_pages == 0        &&
2158
             seg_not_present == 1        &&
2159
             useable == 0 )) {
2160
            entry_1 = 0;
2161
            entry_2 = 0;
2162
            goto install;
2163
        }
2164
    }
2165

    
2166
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2167
        (ldt_info.limit & 0x0ffff);
2168
    entry_2 = (ldt_info.base_addr & 0xff000000) |
2169
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2170
        (ldt_info.limit & 0xf0000) |
2171
        ((read_exec_only ^ 1) << 9) |
2172
        (contents << 10) |
2173
        ((seg_not_present ^ 1) << 15) |
2174
        (seg_32bit << 22) |
2175
        (limit_in_pages << 23) |
2176
        0x7000;
2177
    if (!oldmode)
2178
        entry_2 |= (useable << 20);
2179

    
2180
    /* Install the new entry ...  */
2181
install:
2182
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
2183
    lp[0] = tswap32(entry_1);
2184
    lp[1] = tswap32(entry_2);
2185
    return 0;
2186
}
2187

    
2188
/* specific and weird i386 syscalls */
2189
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
2190
{
2191
    int ret = -ENOSYS;
2192

    
2193
    switch (func) {
2194
    case 0:
2195
        ret = read_ldt(ptr, bytecount);
2196
        break;
2197
    case 1:
2198
        ret = write_ldt(env, ptr, bytecount, 1);
2199
        break;
2200
    case 0x11:
2201
        ret = write_ldt(env, ptr, bytecount, 0);
2202
        break;
2203
    }
2204
    return ret;
2205
}
2206

    
2207
#endif /* defined(TARGET_I386) */
2208

    
2209
/* this stack is the equivalent of the kernel stack associated with a
2210
   thread/process */
2211
#define NEW_STACK_SIZE 8192
2212

    
2213
static int clone_func(void *arg)
2214
{
2215
    CPUState *env = arg;
2216
    cpu_loop(env);
2217
    /* never exits */
2218
    return 0;
2219
}
2220

    
2221
int do_fork(CPUState *env, unsigned int flags, target_ulong newsp)
2222
{
2223
    int ret;
2224
    TaskState *ts;
2225
    uint8_t *new_stack;
2226
    CPUState *new_env;
2227

    
2228
    if (flags & CLONE_VM) {
2229
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
2230
        memset(ts, 0, sizeof(TaskState));
2231
        new_stack = ts->stack;
2232
        ts->used = 1;
2233
        /* add in task state list */
2234
        ts->next = first_task_state;
2235
        first_task_state = ts;
2236
        /* we create a new CPU instance. */
2237
        new_env = cpu_copy(env);
2238
#if defined(TARGET_I386)
2239
        if (!newsp)
2240
            newsp = env->regs[R_ESP];
2241
        new_env->regs[R_ESP] = newsp;
2242
        new_env->regs[R_EAX] = 0;
2243
#elif defined(TARGET_ARM)
2244
        if (!newsp)
2245
            newsp = env->regs[13];
2246
        new_env->regs[13] = newsp;
2247
        new_env->regs[0] = 0;
2248
#elif defined(TARGET_SPARC)
2249
        if (!newsp)
2250
            newsp = env->regwptr[22];
2251
        new_env->regwptr[22] = newsp;
2252
        new_env->regwptr[0] = 0;
2253
        /* XXXXX */
2254
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
2255
#elif defined(TARGET_M68K)
2256
        if (!newsp)
2257
            newsp = env->aregs[7];
2258
        new_env->aregs[7] = newsp;
2259
        new_env->dregs[0] = 0;
2260
        /* ??? is this sufficient?  */
2261
#elif defined(TARGET_MIPS)
2262
        if (!newsp)
2263
            newsp = env->gpr[29][env->current_tc];
2264
        new_env->gpr[29][env->current_tc] = newsp;
2265
#elif defined(TARGET_PPC)
2266
        if (!newsp)
2267
            newsp = env->gpr[1];
2268
        new_env->gpr[1] = newsp;
2269
        {
2270
            int i;
2271
            for (i = 7; i < 32; i++)
2272
                new_env->gpr[i] = 0;
2273
        }
2274
#elif defined(TARGET_SH4)
2275
        if (!newsp)
2276
          newsp = env->gregs[15];
2277
        new_env->gregs[15] = newsp;
2278
        /* XXXXX */
2279
#elif defined(TARGET_ALPHA)
2280
       if (!newsp)
2281
         newsp = env->ir[30];
2282
       new_env->ir[30] = newsp;
2283
        /* ? */
2284
        {
2285
            int i;
2286
            for (i = 7; i < 30; i++)
2287
                new_env->ir[i] = 0;
2288
        }
2289
#else
2290
#error unsupported target CPU
2291
#endif
2292
        new_env->opaque = ts;
2293
#ifdef __ia64__
2294
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2295
#else
2296
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2297
#endif
2298
    } else {
2299
        /* if no CLONE_VM, we consider it is a fork */
2300
        if ((flags & ~CSIGNAL) != 0)
2301
            return -EINVAL;
2302
        ret = fork();
2303
    }
2304
    return ret;
2305
}
2306

    
2307
static target_long do_fcntl(int fd, int cmd, target_ulong arg)
2308
{
2309
    struct flock fl;
2310
    struct target_flock *target_fl;
2311
    struct flock64 fl64;
2312
    struct target_flock64 *target_fl64;
2313
    target_long ret;
2314

    
2315
    switch(cmd) {
2316
    case TARGET_F_GETLK:
2317
        lock_user_struct(target_fl, arg, 1);
2318
        fl.l_type = tswap16(target_fl->l_type);
2319
        fl.l_whence = tswap16(target_fl->l_whence);
2320
        fl.l_start = tswapl(target_fl->l_start);
2321
        fl.l_len = tswapl(target_fl->l_len);
2322
        fl.l_pid = tswapl(target_fl->l_pid);
2323
        unlock_user_struct(target_fl, arg, 0);
2324
        ret = fcntl(fd, cmd, &fl);
2325
        if (ret == 0) {
2326
            lock_user_struct(target_fl, arg, 0);
2327
            target_fl->l_type = tswap16(fl.l_type);
2328
            target_fl->l_whence = tswap16(fl.l_whence);
2329
            target_fl->l_start = tswapl(fl.l_start);
2330
            target_fl->l_len = tswapl(fl.l_len);
2331
            target_fl->l_pid = tswapl(fl.l_pid);
2332
            unlock_user_struct(target_fl, arg, 1);
2333
        }
2334
        break;
2335

    
2336
    case TARGET_F_SETLK:
2337
    case TARGET_F_SETLKW:
2338
        lock_user_struct(target_fl, arg, 1);
2339
        fl.l_type = tswap16(target_fl->l_type);
2340
        fl.l_whence = tswap16(target_fl->l_whence);
2341
        fl.l_start = tswapl(target_fl->l_start);
2342
        fl.l_len = tswapl(target_fl->l_len);
2343
        fl.l_pid = tswapl(target_fl->l_pid);
2344
        unlock_user_struct(target_fl, arg, 0);
2345
        ret = fcntl(fd, cmd, &fl);
2346
        break;
2347

    
2348
    case TARGET_F_GETLK64:
2349
        lock_user_struct(target_fl64, arg, 1);
2350
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2351
        fl64.l_whence = tswap16(target_fl64->l_whence);
2352
        fl64.l_start = tswapl(target_fl64->l_start);
2353
        fl64.l_len = tswapl(target_fl64->l_len);
2354
        fl64.l_pid = tswap16(target_fl64->l_pid);
2355
        unlock_user_struct(target_fl64, arg, 0);
2356
        ret = fcntl(fd, cmd >> 1, &fl64);
2357
        if (ret == 0) {
2358
            lock_user_struct(target_fl64, arg, 0);
2359
            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
2360
            target_fl64->l_whence = tswap16(fl64.l_whence);
2361
            target_fl64->l_start = tswapl(fl64.l_start);
2362
            target_fl64->l_len = tswapl(fl64.l_len);
2363
            target_fl64->l_pid = tswapl(fl64.l_pid);
2364
            unlock_user_struct(target_fl64, arg, 1);
2365
        }
2366
                break;
2367
    case TARGET_F_SETLK64:
2368
    case TARGET_F_SETLKW64:
2369
        lock_user_struct(target_fl64, arg, 1);
2370
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2371
        fl64.l_whence = tswap16(target_fl64->l_whence);
2372
        fl64.l_start = tswapl(target_fl64->l_start);
2373
        fl64.l_len = tswapl(target_fl64->l_len);
2374
        fl64.l_pid = tswap16(target_fl64->l_pid);
2375
        unlock_user_struct(target_fl64, arg, 0);
2376
                ret = fcntl(fd, cmd >> 1, &fl64);
2377
        break;
2378

    
2379
    case F_GETFL:
2380
        ret = fcntl(fd, cmd, arg);
2381
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
2382
        break;
2383

    
2384
    case F_SETFL:
2385
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
2386
        break;
2387

    
2388
    default:
2389
        ret = fcntl(fd, cmd, arg);
2390
        break;
2391
    }
2392
    return ret;
2393
}
2394

    
2395
#ifdef USE_UID16
2396

    
2397
static inline int high2lowuid(int uid)
2398
{
2399
    if (uid > 65535)
2400
        return 65534;
2401
    else
2402
        return uid;
2403
}
2404

    
2405
static inline int high2lowgid(int gid)
2406
{
2407
    if (gid > 65535)
2408
        return 65534;
2409
    else
2410
        return gid;
2411
}
2412

    
2413
static inline int low2highuid(int uid)
2414
{
2415
    if ((int16_t)uid == -1)
2416
        return -1;
2417
    else
2418
        return uid;
2419
}
2420

    
2421
static inline int low2highgid(int gid)
2422
{
2423
    if ((int16_t)gid == -1)
2424
        return -1;
2425
    else
2426
        return gid;
2427
}
2428

    
2429
#endif /* USE_UID16 */
2430

    
2431
void syscall_init(void)
2432
{
2433
    IOCTLEntry *ie;
2434
    const argtype *arg_type;
2435
    int size;
2436

    
2437
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
2438
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
2439
#include "syscall_types.h"
2440
#undef STRUCT
2441
#undef STRUCT_SPECIAL
2442

    
2443
    /* we patch the ioctl size if necessary. We rely on the fact that
2444
       no ioctl has all the bits at '1' in the size field */
2445
    ie = ioctl_entries;
2446
    while (ie->target_cmd != 0) {
2447
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
2448
            TARGET_IOC_SIZEMASK) {
2449
            arg_type = ie->arg_type;
2450
            if (arg_type[0] != TYPE_PTR) {
2451
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2452
                        ie->target_cmd);
2453
                exit(1);
2454
            }
2455
            arg_type++;
2456
            size = thunk_type_size(arg_type, 0);
2457
            ie->target_cmd = (ie->target_cmd &
2458
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
2459
                (size << TARGET_IOC_SIZESHIFT);
2460
        }
2461
        /* automatic consistency check if same arch */
2462
#if defined(__i386__) && defined(TARGET_I386)
2463
        if (ie->target_cmd != ie->host_cmd) {
2464
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
2465
                    ie->target_cmd, ie->host_cmd);
2466
        }
2467
#endif
2468
        ie++;
2469
    }
2470
}
2471

    
2472
#if TARGET_LONG_BITS == 32
2473
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
2474
{
2475
#ifdef TARGET_WORDS_BIG_ENDIAN
2476
    return ((uint64_t)word0 << 32) | word1;
2477
#else
2478
    return ((uint64_t)word1 << 32) | word0;
2479
#endif
2480
}
2481
#else /* TARGET_LONG_BITS == 32 */
2482
static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
2483
{
2484
    return word0;
2485
}
2486
#endif /* TARGET_LONG_BITS != 32 */
2487

    
2488
#ifdef TARGET_NR_truncate64
2489
static inline target_long target_truncate64(void *cpu_env, const char *arg1,
2490
                                            target_long arg2,
2491
                                            target_long arg3,
2492
                                            target_long arg4)
2493
{
2494
#ifdef TARGET_ARM
2495
    if (((CPUARMState *)cpu_env)->eabi)
2496
      {
2497
        arg2 = arg3;
2498
        arg3 = arg4;
2499
      }
2500
#endif
2501
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
2502
}
2503
#endif
2504

    
2505
#ifdef TARGET_NR_ftruncate64
2506
static inline target_long target_ftruncate64(void *cpu_env, target_long arg1,
2507
                                             target_long arg2,
2508
                                             target_long arg3,
2509
                                             target_long arg4)
2510
{
2511
#ifdef TARGET_ARM
2512
    if (((CPUARMState *)cpu_env)->eabi)
2513
      {
2514
        arg2 = arg3;
2515
        arg3 = arg4;
2516
      }
2517
#endif
2518
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
2519
}
2520
#endif
2521

    
2522
static inline void target_to_host_timespec(struct timespec *host_ts,
2523
                                           target_ulong target_addr)
2524
{
2525
    struct target_timespec *target_ts;
2526

    
2527
    lock_user_struct(target_ts, target_addr, 1);
2528
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
2529
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
2530
    unlock_user_struct(target_ts, target_addr, 0);
2531
}
2532

    
2533
static inline void host_to_target_timespec(target_ulong target_addr,
2534
                                           struct timespec *host_ts)
2535
{
2536
    struct target_timespec *target_ts;
2537

    
2538
    lock_user_struct(target_ts, target_addr, 0);
2539
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
2540
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
2541
    unlock_user_struct(target_ts, target_addr, 1);
2542
}
2543

    
2544
target_long do_syscall(void *cpu_env, int num, target_long arg1,
2545
                       target_long arg2, target_long arg3, target_long arg4,
2546
                       target_long arg5, target_long arg6)
2547
{
2548
    target_long ret;
2549
    struct stat st;
2550
    struct statfs stfs;
2551
    void *p;
2552

    
2553
#ifdef DEBUG
2554
    gemu_log("syscall %d", num);
2555
#endif
2556
    switch(num) {
2557
    case TARGET_NR_exit:
2558
#ifdef HAVE_GPROF
2559
        _mcleanup();
2560
#endif
2561
        gdb_exit(cpu_env, arg1);
2562
        /* XXX: should free thread stack and CPU env */
2563
        _exit(arg1);
2564
        ret = 0; /* avoid warning */
2565
        break;
2566
    case TARGET_NR_read:
2567
        page_unprotect_range(arg2, arg3);
2568
        p = lock_user(arg2, arg3, 0);
2569
        ret = get_errno(read(arg1, p, arg3));
2570
        unlock_user(p, arg2, ret);
2571
        break;
2572
    case TARGET_NR_write:
2573
        p = lock_user(arg2, arg3, 1);
2574
        ret = get_errno(write(arg1, p, arg3));
2575
        unlock_user(p, arg2, 0);
2576
        break;
2577
    case TARGET_NR_open:
2578
        p = lock_user_string(arg1);
2579
        ret = get_errno(open(path(p),
2580
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
2581
                             arg3));
2582
        unlock_user(p, arg1, 0);
2583
        break;
2584
#if defined(TARGET_NR_openat) && defined(__NR_openat)
2585
    case TARGET_NR_openat:
2586
        if (!arg2) {
2587
            ret = -EFAULT;
2588
            goto fail;
2589
        }
2590
        p = lock_user_string(arg2);
2591
        if (!access_ok(VERIFY_READ, p, 1))
2592
            ret = -EFAULT;
2593
        else
2594
            ret = get_errno(sys_openat(arg1,
2595
                                       path(p),
2596
                                       target_to_host_bitmask(arg3, fcntl_flags_tbl),
2597
                                       arg4));
2598
        if (p)
2599
            unlock_user(p, arg2, 0);
2600
        break;
2601
#endif
2602
    case TARGET_NR_close:
2603
        ret = get_errno(close(arg1));
2604
        break;
2605
    case TARGET_NR_brk:
2606
        ret = do_brk(arg1);
2607
        break;
2608
    case TARGET_NR_fork:
2609
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
2610
        break;
2611
#ifdef TARGET_NR_waitpid
2612
    case TARGET_NR_waitpid:
2613
        {
2614
            int status;
2615
            ret = get_errno(waitpid(arg1, &status, arg3));
2616
            if (!is_error(ret) && arg2)
2617
                tput32(arg2, status);
2618
        }
2619
        break;
2620
#endif
2621
#ifdef TARGET_NR_creat /* not on alpha */
2622
    case TARGET_NR_creat:
2623
        p = lock_user_string(arg1);
2624
        ret = get_errno(creat(p, arg2));
2625
        unlock_user(p, arg1, 0);
2626
        break;
2627
#endif
2628
    case TARGET_NR_link:
2629
        {
2630
            void * p2;
2631
            p = lock_user_string(arg1);
2632
            p2 = lock_user_string(arg2);
2633
            ret = get_errno(link(p, p2));
2634
            unlock_user(p2, arg2, 0);
2635
            unlock_user(p, arg1, 0);
2636
        }
2637
        break;
2638
#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
2639
    case TARGET_NR_linkat:
2640
        if (!arg2 || !arg4) {
2641
            ret = -EFAULT;
2642
            goto fail;
2643
        }
2644
        {
2645
            void * p2 = NULL;
2646
            p  = lock_user_string(arg2);
2647
            p2 = lock_user_string(arg4);
2648
            if (!access_ok(VERIFY_READ, p, 1)
2649
                || !access_ok(VERIFY_READ, p2, 1))
2650
                ret = -EFAULT;
2651
            else
2652
                ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
2653
            if (p2)
2654
                unlock_user(p, arg2, 0);
2655
            if (p)
2656
                unlock_user(p2, arg4, 0);
2657
        }
2658
        break;
2659
#endif
2660
    case TARGET_NR_unlink:
2661
        p = lock_user_string(arg1);
2662
        ret = get_errno(unlink(p));
2663
        unlock_user(p, arg1, 0);
2664
        break;
2665
#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
2666
    case TARGET_NR_unlinkat:
2667
        if (!arg2) {
2668
            ret = -EFAULT;
2669
            goto fail;
2670
        }
2671
        p = lock_user_string(arg2);
2672
        if (!access_ok(VERIFY_READ, p, 1))
2673
            ret = -EFAULT;
2674
        else
2675
            ret = get_errno(sys_unlinkat(arg1, p, arg3));
2676
        if (p)
2677
            unlock_user(p, arg2, 0);
2678
        break;
2679
#endif
2680
    case TARGET_NR_execve:
2681
        {
2682
            char **argp, **envp;
2683
            int argc, envc;
2684
            target_ulong gp;
2685
            target_ulong guest_argp;
2686
            target_ulong guest_envp;
2687
            target_ulong addr;
2688
            char **q;
2689

    
2690
            argc = 0;
2691
            guest_argp = arg2;
2692
            for (gp = guest_argp; tgetl(gp); gp++)
2693
                argc++;
2694
            envc = 0;
2695
            guest_envp = arg3;
2696
            for (gp = guest_envp; tgetl(gp); gp++)
2697
                envc++;
2698

    
2699
            argp = alloca((argc + 1) * sizeof(void *));
2700
            envp = alloca((envc + 1) * sizeof(void *));
2701

    
2702
            for (gp = guest_argp, q = argp; ;
2703
                  gp += sizeof(target_ulong), q++) {
2704
                addr = tgetl(gp);
2705
                if (!addr)
2706
                    break;
2707
                *q = lock_user_string(addr);
2708
            }
2709
            *q = NULL;
2710

    
2711
            for (gp = guest_envp, q = envp; ;
2712
                  gp += sizeof(target_ulong), q++) {
2713
                addr = tgetl(gp);
2714
                if (!addr)
2715
                    break;
2716
                *q = lock_user_string(addr);
2717
            }
2718
            *q = NULL;
2719

    
2720
            p = lock_user_string(arg1);
2721
            ret = get_errno(execve(p, argp, envp));
2722
            unlock_user(p, arg1, 0);
2723

    
2724
            for (gp = guest_argp, q = argp; *q;
2725
                  gp += sizeof(target_ulong), q++) {
2726
                addr = tgetl(gp);
2727
                unlock_user(*q, addr, 0);
2728
            }
2729
            for (gp = guest_envp, q = envp; *q;
2730
                  gp += sizeof(target_ulong), q++) {
2731
                addr = tgetl(gp);
2732
                unlock_user(*q, addr, 0);
2733
            }
2734
        }
2735
        break;
2736
    case TARGET_NR_chdir:
2737
        p = lock_user_string(arg1);
2738
        ret = get_errno(chdir(p));
2739
        unlock_user(p, arg1, 0);
2740
        break;
2741
#ifdef TARGET_NR_time
2742
    case TARGET_NR_time:
2743
        {
2744
            time_t host_time;
2745
            ret = get_errno(time(&host_time));
2746
            if (!is_error(ret) && arg1)
2747
                tputl(arg1, host_time);
2748
        }
2749
        break;
2750
#endif
2751
    case TARGET_NR_mknod:
2752
        p = lock_user_string(arg1);
2753
        ret = get_errno(mknod(p, arg2, arg3));
2754
        unlock_user(p, arg1, 0);
2755
        break;
2756
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
2757
    case TARGET_NR_mknodat:
2758
        if (!arg2) {
2759
            ret = -EFAULT;
2760
            goto fail;
2761
        }
2762
        p = lock_user_string(arg2);
2763
        if (!access_ok(VERIFY_READ, p, 1))
2764
            ret = -EFAULT;
2765
        else
2766
            ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
2767
        if (p)
2768
            unlock_user(p, arg2, 0);
2769
        break;
2770
#endif
2771
    case TARGET_NR_chmod:
2772
        p = lock_user_string(arg1);
2773
        ret = get_errno(chmod(p, arg2));
2774
        unlock_user(p, arg1, 0);
2775
        break;
2776
#ifdef TARGET_NR_break
2777
    case TARGET_NR_break:
2778
        goto unimplemented;
2779
#endif
2780
#ifdef TARGET_NR_oldstat
2781
    case TARGET_NR_oldstat:
2782
        goto unimplemented;
2783
#endif
2784
    case TARGET_NR_lseek:
2785
        ret = get_errno(lseek(arg1, arg2, arg3));
2786
        break;
2787
#ifdef TARGET_NR_getxpid
2788
    case TARGET_NR_getxpid:
2789
#else
2790
    case TARGET_NR_getpid:
2791
#endif
2792
        ret = get_errno(getpid());
2793
        break;
2794
    case TARGET_NR_mount:
2795
                {
2796
                        /* need to look at the data field */
2797
                        void *p2, *p3;
2798
                        p = lock_user_string(arg1);
2799
                        p2 = lock_user_string(arg2);
2800
                        p3 = lock_user_string(arg3);
2801
                        ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5));
2802
                        unlock_user(p, arg1, 0);
2803
                        unlock_user(p2, arg2, 0);
2804
                        unlock_user(p3, arg3, 0);
2805
                        break;
2806
                }
2807
#ifdef TARGET_NR_umount
2808
    case TARGET_NR_umount:
2809
        p = lock_user_string(arg1);
2810
        ret = get_errno(umount(p));
2811
        unlock_user(p, arg1, 0);
2812
        break;
2813
#endif
2814
#ifdef TARGET_NR_stime /* not on alpha */
2815
    case TARGET_NR_stime:
2816
        {
2817
            time_t host_time;
2818
            host_time = tgetl(arg1);
2819
            ret = get_errno(stime(&host_time));
2820
        }
2821
        break;
2822
#endif
2823
    case TARGET_NR_ptrace:
2824
        goto unimplemented;
2825
#ifdef TARGET_NR_alarm /* not on alpha */
2826
    case TARGET_NR_alarm:
2827
        ret = alarm(arg1);
2828
        break;
2829
#endif
2830
#ifdef TARGET_NR_oldfstat
2831
    case TARGET_NR_oldfstat:
2832
        goto unimplemented;
2833
#endif
2834
#ifdef TARGET_NR_pause /* not on alpha */
2835
    case TARGET_NR_pause:
2836
        ret = get_errno(pause());
2837
        break;
2838
#endif
2839
#ifdef TARGET_NR_utime
2840
    case TARGET_NR_utime:
2841
        {
2842
            struct utimbuf tbuf, *host_tbuf;
2843
            struct target_utimbuf *target_tbuf;
2844
            if (arg2) {
2845
                lock_user_struct(target_tbuf, arg2, 1);
2846
                tbuf.actime = tswapl(target_tbuf->actime);
2847
                tbuf.modtime = tswapl(target_tbuf->modtime);
2848
                unlock_user_struct(target_tbuf, arg2, 0);
2849
                host_tbuf = &tbuf;
2850
            } else {
2851
                host_tbuf = NULL;
2852
            }
2853
            p = lock_user_string(arg1);
2854
            ret = get_errno(utime(p, host_tbuf));
2855
            unlock_user(p, arg1, 0);
2856
        }
2857
        break;
2858
#endif
2859
    case TARGET_NR_utimes:
2860
        {
2861
            struct timeval *tvp, tv[2];
2862
            if (arg2) {
2863
                target_to_host_timeval(&tv[0], arg2);
2864
                target_to_host_timeval(&tv[1],
2865
                    arg2 + sizeof (struct target_timeval));
2866
                tvp = tv;
2867
            } else {
2868
                tvp = NULL;
2869
            }
2870
            p = lock_user_string(arg1);
2871
            ret = get_errno(utimes(p, tvp));
2872
            unlock_user(p, arg1, 0);
2873
        }
2874
        break;
2875
#ifdef TARGET_NR_stty
2876
    case TARGET_NR_stty:
2877
        goto unimplemented;
2878
#endif
2879
#ifdef TARGET_NR_gtty
2880
    case TARGET_NR_gtty:
2881
        goto unimplemented;
2882
#endif
2883
    case TARGET_NR_access:
2884
        p = lock_user_string(arg1);
2885
        ret = get_errno(access(p, arg2));
2886
        unlock_user(p, arg1, 0);
2887
        break;
2888
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
2889
    case TARGET_NR_faccessat:
2890
        if (!arg2) {
2891
            ret = -EFAULT;
2892
            goto fail;
2893
        }
2894
        p = lock_user_string(arg2);
2895
        if (!access_ok(VERIFY_READ, p, 1))
2896
                ret = -EFAULT;
2897
        else
2898
            ret = get_errno(sys_faccessat(arg1, p, arg3, arg4));
2899
        if (p)
2900
            unlock_user(p, arg2, 0);
2901
        break;
2902
#endif
2903
#ifdef TARGET_NR_nice /* not on alpha */
2904
    case TARGET_NR_nice:
2905
        ret = get_errno(nice(arg1));
2906
        break;
2907
#endif
2908
#ifdef TARGET_NR_ftime
2909
    case TARGET_NR_ftime:
2910
        goto unimplemented;
2911
#endif
2912
    case TARGET_NR_sync:
2913
        sync();
2914
        ret = 0;
2915
        break;
2916
    case TARGET_NR_kill:
2917
        ret = get_errno(kill(arg1, arg2));
2918
        break;
2919
    case TARGET_NR_rename:
2920
        {
2921
            void *p2;
2922
            p = lock_user_string(arg1);
2923
            p2 = lock_user_string(arg2);
2924
            ret = get_errno(rename(p, p2));
2925
            unlock_user(p2, arg2, 0);
2926
            unlock_user(p, arg1, 0);
2927
        }
2928
        break;
2929
#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
2930
    case TARGET_NR_renameat:
2931
        if (!arg2 || !arg4) {
2932
            ret = -EFAULT;
2933
            goto fail;
2934
        }
2935
        {
2936
            void *p2 = NULL;
2937
            p  = lock_user_string(arg2);
2938
            p2 = lock_user_string(arg4);
2939
            if (!access_ok(VERIFY_READ, p, 1)
2940
                || !access_ok(VERIFY_READ, p2, 1))
2941
                ret = -EFAULT;
2942
            else
2943
                ret = get_errno(sys_renameat(arg1, p, arg3, p2));
2944
            if (p2)
2945
                unlock_user(p2, arg4, 0);
2946
            if (p)
2947
                unlock_user(p, arg2, 0);
2948
        }
2949
        break;
2950
#endif
2951
    case TARGET_NR_mkdir:
2952
        p = lock_user_string(arg1);
2953
        ret = get_errno(mkdir(p, arg2));
2954
        unlock_user(p, arg1, 0);
2955
        break;
2956
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
2957
    case TARGET_NR_mkdirat:
2958
        if (!arg2) {
2959
            ret = -EFAULT;
2960
            goto fail;
2961
        }
2962
        p = lock_user_string(arg2);
2963
        if (!access_ok(VERIFY_READ, p, 1))
2964
            ret = -EFAULT;
2965
        else
2966
            ret = get_errno(sys_mkdirat(arg1, p, arg3));
2967
        if (p)
2968
            unlock_user(p, arg2, 0);
2969
        break;
2970
#endif
2971
    case TARGET_NR_rmdir:
2972
        p = lock_user_string(arg1);
2973
        ret = get_errno(rmdir(p));
2974
        unlock_user(p, arg1, 0);
2975
        break;
2976
    case TARGET_NR_dup:
2977
        ret = get_errno(dup(arg1));
2978
        break;
2979
    case TARGET_NR_pipe:
2980
        {
2981
            int host_pipe[2];
2982
            ret = get_errno(pipe(host_pipe));
2983
            if (!is_error(ret)) {
2984
#if defined(TARGET_MIPS)
2985
                CPUMIPSState *env = (CPUMIPSState*)cpu_env;
2986
                env->gpr[3][env->current_tc] = host_pipe[1];
2987
                ret = host_pipe[0];
2988
#else
2989
                tput32(arg1, host_pipe[0]);
2990
                tput32(arg1 + 4, host_pipe[1]);
2991
#endif
2992
            }
2993
        }
2994
        break;
2995
    case TARGET_NR_times:
2996
        {
2997
            struct target_tms *tmsp;
2998
            struct tms tms;
2999
            ret = get_errno(times(&tms));
3000
            if (arg1) {
3001
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
3002
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
3003
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
3004
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
3005
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
3006
            }
3007
            if (!is_error(ret))
3008
                ret = host_to_target_clock_t(ret);
3009
        }
3010
        break;
3011
#ifdef TARGET_NR_prof
3012
    case TARGET_NR_prof:
3013
        goto unimplemented;
3014
#endif
3015
#ifdef TARGET_NR_signal
3016
    case TARGET_NR_signal:
3017
        goto unimplemented;
3018
#endif
3019
    case TARGET_NR_acct:
3020
        p = lock_user_string(arg1);
3021
        ret = get_errno(acct(path(p)));
3022
        unlock_user(p, arg1, 0);
3023
        break;
3024
#ifdef TARGET_NR_umount2 /* not on alpha */
3025
    case TARGET_NR_umount2:
3026
        p = lock_user_string(arg1);
3027
        ret = get_errno(umount2(p, arg2));
3028
        unlock_user(p, arg1, 0);
3029
        break;
3030
#endif
3031
#ifdef TARGET_NR_lock
3032
    case TARGET_NR_lock:
3033
        goto unimplemented;
3034
#endif
3035
    case TARGET_NR_ioctl:
3036
        ret = do_ioctl(arg1, arg2, arg3);
3037
        break;
3038
    case TARGET_NR_fcntl:
3039
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
3040
        break;
3041
#ifdef TARGET_NR_mpx
3042
    case TARGET_NR_mpx:
3043
        goto unimplemented;
3044
#endif
3045
    case TARGET_NR_setpgid:
3046
        ret = get_errno(setpgid(arg1, arg2));
3047
        break;
3048
#ifdef TARGET_NR_ulimit
3049
    case TARGET_NR_ulimit:
3050
        goto unimplemented;
3051
#endif
3052
#ifdef TARGET_NR_oldolduname
3053
    case TARGET_NR_oldolduname:
3054
        goto unimplemented;
3055
#endif
3056
    case TARGET_NR_umask:
3057
        ret = get_errno(umask(arg1));
3058
        break;
3059
    case TARGET_NR_chroot:
3060
        p = lock_user_string(arg1);
3061
        ret = get_errno(chroot(p));
3062
        unlock_user(p, arg1, 0);
3063
        break;
3064
    case TARGET_NR_ustat:
3065
        goto unimplemented;
3066
    case TARGET_NR_dup2:
3067
        ret = get_errno(dup2(arg1, arg2));
3068
        break;
3069
#ifdef TARGET_NR_getppid /* not on alpha */
3070
    case TARGET_NR_getppid:
3071
        ret = get_errno(getppid());
3072
        break;
3073
#endif
3074
    case TARGET_NR_getpgrp:
3075
        ret = get_errno(getpgrp());
3076
        break;
3077
    case TARGET_NR_setsid:
3078
        ret = get_errno(setsid());
3079
        break;
3080
#ifdef TARGET_NR_sigaction
3081
    case TARGET_NR_sigaction:
3082
        {
3083
#if !defined(TARGET_MIPS)
3084
            struct target_old_sigaction *old_act;
3085
            struct target_sigaction act, oact, *pact;
3086
            if (arg2) {
3087
                lock_user_struct(old_act, arg2, 1);
3088
                act._sa_handler = old_act->_sa_handler;
3089
                target_siginitset(&act.sa_mask, old_act->sa_mask);
3090
                act.sa_flags = old_act->sa_flags;
3091
                act.sa_restorer = old_act->sa_restorer;
3092
                unlock_user_struct(old_act, arg2, 0);
3093
                pact = &act;
3094
            } else {
3095
                pact = NULL;
3096
            }
3097
            ret = get_errno(do_sigaction(arg1, pact, &oact));
3098
            if (!is_error(ret) && arg3) {
3099
                lock_user_struct(old_act, arg3, 0);
3100
                old_act->_sa_handler = oact._sa_handler;
3101
                old_act->sa_mask = oact.sa_mask.sig[0];
3102
                old_act->sa_flags = oact.sa_flags;
3103
                old_act->sa_restorer = oact.sa_restorer;
3104
                unlock_user_struct(old_act, arg3, 1);
3105
            }
3106
#else
3107
            struct target_sigaction act, oact, *pact, *old_act;
3108

    
3109
            if (arg2) {
3110
                lock_user_struct(old_act, arg2, 1);
3111
                act._sa_handler = old_act->_sa_handler;
3112
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
3113
                act.sa_flags = old_act->sa_flags;
3114
                unlock_user_struct(old_act, arg2, 0);
3115
                pact = &act;
3116
            } else {
3117
                pact = NULL;
3118
            }
3119

    
3120
            ret = get_errno(do_sigaction(arg1, pact, &oact));
3121

    
3122
            if (!is_error(ret) && arg3) {
3123
                lock_user_struct(old_act, arg3, 0);
3124
                old_act->_sa_handler = oact._sa_handler;
3125
                old_act->sa_flags = oact.sa_flags;
3126
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
3127
                old_act->sa_mask.sig[1] = 0;
3128
                old_act->sa_mask.sig[2] = 0;
3129
                old_act->sa_mask.sig[3] = 0;
3130
                unlock_user_struct(old_act, arg3, 1);
3131
            }
3132
#endif
3133
        }
3134
        break;
3135
#endif
3136
    case TARGET_NR_rt_sigaction:
3137
        {
3138
            struct target_sigaction *act;
3139
            struct target_sigaction *oact;
3140

    
3141
            if (arg2)
3142
                lock_user_struct(act, arg2, 1);
3143
            else
3144
                act = NULL;
3145
            if (arg3)
3146
                lock_user_struct(oact, arg3, 0);
3147
            else
3148
                oact = NULL;
3149
            ret = get_errno(do_sigaction(arg1, act, oact));
3150
            if (arg2)
3151
                unlock_user_struct(act, arg2, 0);
3152
            if (arg3)
3153
                unlock_user_struct(oact, arg3, 1);
3154
        }
3155
        break;
3156
#ifdef TARGET_NR_sgetmask /* not on alpha */
3157
    case TARGET_NR_sgetmask:
3158
        {
3159
            sigset_t cur_set;
3160
            target_ulong target_set;
3161
            sigprocmask(0, NULL, &cur_set);
3162
            host_to_target_old_sigset(&target_set, &cur_set);
3163
            ret = target_set;
3164
        }
3165
        break;
3166
#endif
3167
#ifdef TARGET_NR_ssetmask /* not on alpha */
3168
    case TARGET_NR_ssetmask:
3169
        {
3170
            sigset_t set, oset, cur_set;
3171
            target_ulong target_set = arg1;
3172
            sigprocmask(0, NULL, &cur_set);
3173
            target_to_host_old_sigset(&set, &target_set);
3174
            sigorset(&set, &set, &cur_set);
3175
            sigprocmask(SIG_SETMASK, &set, &oset);
3176
            host_to_target_old_sigset(&target_set, &oset);
3177
            ret = target_set;
3178
        }
3179
        break;
3180
#endif
3181
#ifdef TARGET_NR_sigprocmask
3182
    case TARGET_NR_sigprocmask:
3183
        {
3184
            int how = arg1;
3185
            sigset_t set, oldset, *set_ptr;
3186

    
3187
            if (arg2) {
3188
                switch(how) {
3189
                case TARGET_SIG_BLOCK:
3190
                    how = SIG_BLOCK;
3191
                    break;
3192
                case TARGET_SIG_UNBLOCK:
3193
                    how = SIG_UNBLOCK;
3194
                    break;
3195
                case TARGET_SIG_SETMASK:
3196
                    how = SIG_SETMASK;
3197
                    break;
3198
                default:
3199
                    ret = -EINVAL;
3200
                    goto fail;
3201
                }
3202
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
3203
                target_to_host_old_sigset(&set, p);
3204
                unlock_user(p, arg2, 0);
3205
                set_ptr = &set;
3206
            } else {
3207
                how = 0;
3208
                set_ptr = NULL;
3209
            }
3210
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
3211
            if (!is_error(ret) && arg3) {
3212
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
3213
                host_to_target_old_sigset(p, &oldset);
3214
                unlock_user(p, arg3, sizeof(target_sigset_t));
3215
            }
3216
        }
3217
        break;
3218
#endif
3219
    case TARGET_NR_rt_sigprocmask:
3220
        {
3221
            int how = arg1;
3222
            sigset_t set, oldset, *set_ptr;
3223

    
3224
            if (arg2) {
3225
                switch(how) {
3226
                case TARGET_SIG_BLOCK:
3227
                    how = SIG_BLOCK;
3228
                    break;
3229
                case TARGET_SIG_UNBLOCK:
3230
                    how = SIG_UNBLOCK;
3231
                    break;
3232
                case TARGET_SIG_SETMASK:
3233
                    how = SIG_SETMASK;
3234
                    break;
3235
                default:
3236
                    ret = -EINVAL;
3237
                    goto fail;
3238
                }
3239
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
3240
                target_to_host_sigset(&set, p);
3241
                unlock_user(p, arg2, 0);
3242
                set_ptr = &set;
3243
            } else {
3244
                how = 0;
3245
                set_ptr = NULL;
3246
            }
3247
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
3248
            if (!is_error(ret) && arg3) {
3249
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
3250
                host_to_target_sigset(p, &oldset);
3251
                unlock_user(p, arg3, sizeof(target_sigset_t));
3252
            }
3253
        }
3254
        break;
3255
#ifdef TARGET_NR_sigpending
3256
    case TARGET_NR_sigpending:
3257
        {
3258
            sigset_t set;
3259
            ret = get_errno(sigpending(&set));
3260
            if (!is_error(ret)) {
3261
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
3262
                host_to_target_old_sigset(p, &set);
3263
                unlock_user(p, arg1, sizeof(target_sigset_t));
3264
            }
3265
        }
3266
        break;
3267
#endif
3268
    case TARGET_NR_rt_sigpending:
3269
        {
3270
            sigset_t set;
3271
            ret = get_errno(sigpending(&set));
3272
            if (!is_error(ret)) {
3273
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
3274
                host_to_target_sigset(p, &set);
3275
                unlock_user(p, arg1, sizeof(target_sigset_t));
3276
            }
3277
        }
3278
        break;
3279
#ifdef TARGET_NR_sigsuspend
3280
    case TARGET_NR_sigsuspend:
3281
        {
3282
            sigset_t set;
3283
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3284
            target_to_host_old_sigset(&set, p);
3285
            unlock_user(p, arg1, 0);
3286
            ret = get_errno(sigsuspend(&set));
3287
        }
3288
        break;
3289
#endif
3290
    case TARGET_NR_rt_sigsuspend:
3291
        {
3292
            sigset_t set;
3293
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3294
            target_to_host_sigset(&set, p);
3295
            unlock_user(p, arg1, 0);
3296
            ret = get_errno(sigsuspend(&set));
3297
        }
3298
        break;
3299
    case TARGET_NR_rt_sigtimedwait:
3300
        {
3301
            sigset_t set;
3302
            struct timespec uts, *puts;
3303
            siginfo_t uinfo;
3304

    
3305
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3306
            target_to_host_sigset(&set, p);
3307
            unlock_user(p, arg1, 0);
3308
            if (arg3) {
3309
                puts = &uts;
3310
                target_to_host_timespec(puts, arg3);
3311
            } else {
3312
                puts = NULL;
3313
            }
3314
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
3315
            if (!is_error(ret) && arg2) {
3316
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
3317
                host_to_target_siginfo(p, &uinfo);
3318
                unlock_user(p, arg2, sizeof(target_sigset_t));
3319
            }
3320
        }
3321
        break;
3322
    case TARGET_NR_rt_sigqueueinfo:
3323
        {
3324
            siginfo_t uinfo;
3325
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
3326
            target_to_host_siginfo(&uinfo, p);
3327
            unlock_user(p, arg1, 0);
3328
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
3329
        }
3330
        break;
3331
#ifdef TARGET_NR_sigreturn
3332
    case TARGET_NR_sigreturn:
3333
        /* NOTE: ret is eax, so not transcoding must be done */
3334
        ret = do_sigreturn(cpu_env);
3335
        break;
3336
#endif
3337
    case TARGET_NR_rt_sigreturn:
3338
        /* NOTE: ret is eax, so not transcoding must be done */
3339
        ret = do_rt_sigreturn(cpu_env);
3340
        break;
3341
    case TARGET_NR_sethostname:
3342
        p = lock_user_string(arg1);
3343
        ret = get_errno(sethostname(p, arg2));
3344
        unlock_user(p, arg1, 0);
3345
        break;
3346
    case TARGET_NR_setrlimit:
3347
        {
3348
            /* XXX: convert resource ? */
3349
            int resource = arg1;
3350
            struct target_rlimit *target_rlim;
3351
            struct rlimit rlim;
3352
            lock_user_struct(target_rlim, arg2, 1);
3353
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3354
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
3355
            unlock_user_struct(target_rlim, arg2, 0);
3356
            ret = get_errno(setrlimit(resource, &rlim));
3357
        }
3358
        break;
3359
    case TARGET_NR_getrlimit:
3360
        {
3361
            /* XXX: convert resource ? */
3362
            int resource = arg1;
3363
            struct target_rlimit *target_rlim;
3364
            struct rlimit rlim;
3365

    
3366
            ret = get_errno(getrlimit(resource, &rlim));
3367
            if (!is_error(ret)) {
3368
                lock_user_struct(target_rlim, arg2, 0);
3369
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3370
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
3371
                unlock_user_struct(target_rlim, arg2, 1);
3372
            }
3373
        }
3374
        break;
3375
    case TARGET_NR_getrusage:
3376
        {
3377
            struct rusage rusage;
3378
            ret = get_errno(getrusage(arg1, &rusage));
3379
            if (!is_error(ret)) {
3380
                host_to_target_rusage(arg2, &rusage);
3381
            }
3382
        }
3383
        break;
3384
    case TARGET_NR_gettimeofday:
3385
        {
3386
            struct timeval tv;
3387
            ret = get_errno(gettimeofday(&tv, NULL));
3388
            if (!is_error(ret)) {
3389
                host_to_target_timeval(arg1, &tv);
3390
            }
3391
        }
3392
        break;
3393
    case TARGET_NR_settimeofday:
3394
        {
3395
            struct timeval tv;
3396
            target_to_host_timeval(&tv, arg1);
3397
            ret = get_errno(settimeofday(&tv, NULL));
3398
        }
3399
        break;
3400
#ifdef TARGET_NR_select
3401
    case TARGET_NR_select:
3402
        {
3403
            struct target_sel_arg_struct *sel;
3404
            target_ulong inp, outp, exp, tvp;
3405
            long nsel;
3406

    
3407
            lock_user_struct(sel, arg1, 1);
3408
            nsel = tswapl(sel->n);
3409
            inp = tswapl(sel->inp);
3410
            outp = tswapl(sel->outp);
3411
            exp = tswapl(sel->exp);
3412
            tvp = tswapl(sel->tvp);
3413
            unlock_user_struct(sel, arg1, 0);
3414
            ret = do_select(nsel, inp, outp, exp, tvp);
3415
        }
3416
        break;
3417
#endif
3418
    case TARGET_NR_symlink:
3419
        {
3420
            void *p2;
3421
            p = lock_user_string(arg1);
3422
            p2 = lock_user_string(arg2);
3423
            ret = get_errno(symlink(p, p2));
3424
            unlock_user(p2, arg2, 0);
3425
            unlock_user(p, arg1, 0);
3426
        }
3427
        break;
3428
#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
3429
    case TARGET_NR_symlinkat:
3430
        if (!arg1 || !arg3) {
3431
            ret = -EFAULT;
3432
            goto fail;
3433
        }
3434
        {
3435
            void *p2 = NULL;
3436
            p  = lock_user_string(arg1);
3437
            p2 = lock_user_string(arg3);
3438
            if (!access_ok(VERIFY_READ, p, 1)
3439
                || !access_ok(VERIFY_READ, p2, 1))
3440
                ret = -EFAULT;
3441
            else
3442
                ret = get_errno(sys_symlinkat(p, arg2, p2));
3443
            if (p2)
3444
                unlock_user(p2, arg3, 0);
3445
            if (p)
3446
                unlock_user(p, arg1, 0);
3447
        }
3448
        break;
3449
#endif
3450
#ifdef TARGET_NR_oldlstat
3451
    case TARGET_NR_oldlstat:
3452
        goto unimplemented;
3453
#endif
3454
    case TARGET_NR_readlink:
3455
        {
3456
            void *p2;
3457
            p = lock_user_string(arg1);
3458
            p2 = lock_user(arg2, arg3, 0);
3459
            ret = get_errno(readlink(path(p), p2, arg3));
3460
            unlock_user(p2, arg2, ret);
3461
            unlock_user(p, arg1, 0);
3462
        }
3463
        break;
3464
#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
3465
    case TARGET_NR_readlinkat:
3466
        if (!arg2 || !arg3) {
3467
            ret = -EFAULT;
3468
            goto fail;
3469
        }
3470
        {
3471
            void *p2 = NULL;
3472
            p  = lock_user_string(arg2);
3473
            p2 = lock_user(arg3, arg4, 0);
3474
            if (!access_ok(VERIFY_READ, p, 1)
3475
                || !access_ok(VERIFY_READ, p2, 1))
3476
                ret = -EFAULT;
3477
            else
3478
                ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
3479
            if (p2)
3480
                unlock_user(p2, arg3, ret);
3481
            if (p)
3482
                unlock_user(p, arg2, 0);
3483
        }
3484
        break;
3485
#endif
3486
#ifdef TARGET_NR_uselib
3487
    case TARGET_NR_uselib:
3488
        goto unimplemented;
3489
#endif
3490
#ifdef TARGET_NR_swapon
3491
    case TARGET_NR_swapon:
3492
        p = lock_user_string(arg1);
3493
        ret = get_errno(swapon(p, arg2));
3494
        unlock_user(p, arg1, 0);
3495
        break;
3496
#endif
3497
    case TARGET_NR_reboot:
3498
        goto unimplemented;
3499
#ifdef TARGET_NR_readdir
3500
    case TARGET_NR_readdir:
3501
        goto unimplemented;
3502
#endif
3503
#ifdef TARGET_NR_mmap
3504
    case TARGET_NR_mmap:
3505
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
3506
        {
3507
            target_ulong *v;
3508
            target_ulong v1, v2, v3, v4, v5, v6;
3509
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
3510
            v1 = tswapl(v[0]);
3511
            v2 = tswapl(v[1]);
3512
            v3 = tswapl(v[2]);
3513
            v4 = tswapl(v[3]);
3514
            v5 = tswapl(v[4]);
3515
            v6 = tswapl(v[5]);
3516
            unlock_user(v, arg1, 0);
3517
            ret = get_errno(target_mmap(v1, v2, v3,
3518
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
3519
                                        v5, v6));
3520
        }
3521
#else
3522
        ret = get_errno(target_mmap(arg1, arg2, arg3,
3523
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
3524
                                    arg5,
3525
                                    arg6));
3526
#endif
3527
        break;
3528
#endif
3529
#ifdef TARGET_NR_mmap2
3530
    case TARGET_NR_mmap2:
3531
#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
3532
#define MMAP_SHIFT 12
3533
#else
3534
#define MMAP_SHIFT TARGET_PAGE_BITS
3535
#endif
3536
        ret = get_errno(target_mmap(arg1, arg2, arg3,
3537
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
3538
                                    arg5,
3539
                                    arg6 << MMAP_SHIFT));
3540
        break;
3541
#endif
3542
    case TARGET_NR_munmap:
3543
        ret = get_errno(target_munmap(arg1, arg2));
3544
        break;
3545
    case TARGET_NR_mprotect:
3546
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
3547
        break;
3548
#ifdef TARGET_NR_mremap
3549
    case TARGET_NR_mremap:
3550
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
3551
        break;
3552
#endif
3553
        /* ??? msync/mlock/munlock are broken for softmmu.  */
3554
#ifdef TARGET_NR_msync
3555
    case TARGET_NR_msync:
3556
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
3557
        break;
3558
#endif
3559
#ifdef TARGET_NR_mlock
3560
    case TARGET_NR_mlock:
3561
        ret = get_errno(mlock(g2h(arg1), arg2));
3562
        break;
3563
#endif
3564
#ifdef TARGET_NR_munlock
3565
    case TARGET_NR_munlock:
3566
        ret = get_errno(munlock(g2h(arg1), arg2));
3567
        break;
3568
#endif
3569
#ifdef TARGET_NR_mlockall
3570
    case TARGET_NR_mlockall:
3571
        ret = get_errno(mlockall(arg1));
3572
        break;
3573
#endif
3574
#ifdef TARGET_NR_munlockall
3575
    case TARGET_NR_munlockall:
3576
        ret = get_errno(munlockall());
3577
        break;
3578
#endif
3579
    case TARGET_NR_truncate:
3580
        p = lock_user_string(arg1);
3581
        ret = get_errno(truncate(p, arg2));
3582
        unlock_user(p, arg1, 0);
3583
        break;
3584
    case TARGET_NR_ftruncate:
3585
        ret = get_errno(ftruncate(arg1, arg2));
3586
        break;
3587
    case TARGET_NR_fchmod:
3588
        ret = get_errno(fchmod(arg1, arg2));
3589
        break;
3590
#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
3591
    case TARGET_NR_fchmodat:
3592
        if (!arg2) {
3593
            ret = -EFAULT;
3594
            goto fail;
3595
        }
3596
        p = lock_user_string(arg2);
3597
        if (!access_ok(VERIFY_READ, p, 1))
3598
            ret = -EFAULT;
3599
        else
3600
            ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4));
3601
        if (p)
3602
            unlock_user(p, arg2, 0);
3603
        break;
3604
#endif
3605
    case TARGET_NR_getpriority:
3606
        ret = get_errno(getpriority(arg1, arg2));
3607
        break;
3608
    case TARGET_NR_setpriority:
3609
        ret = get_errno(setpriority(arg1, arg2, arg3));
3610
        break;
3611
#ifdef TARGET_NR_profil
3612
    case TARGET_NR_profil:
3613
        goto unimplemented;
3614
#endif
3615
    case TARGET_NR_statfs:
3616
        p = lock_user_string(arg1);
3617
        ret = get_errno(statfs(path(p), &stfs));
3618
        unlock_user(p, arg1, 0);
3619
    convert_statfs:
3620
        if (!is_error(ret)) {
3621
            struct target_statfs *target_stfs;
3622

    
3623
            lock_user_struct(target_stfs, arg2, 0);
3624
            /* ??? put_user is probably wrong.  */
3625
            put_user(stfs.f_type, &target_stfs->f_type);
3626
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
3627
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
3628
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
3629
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
3630
            put_user(stfs.f_files, &target_stfs->f_files);
3631
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
3632
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
3633
            put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
3634
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
3635
            unlock_user_struct(target_stfs, arg2, 1);
3636
        }
3637
        break;
3638
    case TARGET_NR_fstatfs:
3639
        ret = get_errno(fstatfs(arg1, &stfs));
3640
        goto convert_statfs;
3641
#ifdef TARGET_NR_statfs64
3642
    case TARGET_NR_statfs64:
3643
        p = lock_user_string(arg1);
3644
        ret = get_errno(statfs(path(p), &stfs));
3645
        unlock_user(p, arg1, 0);
3646
    convert_statfs64:
3647
        if (!is_error(ret)) {
3648
            struct target_statfs64 *target_stfs;
3649

    
3650
            lock_user_struct(target_stfs, arg3, 0);
3651
            /* ??? put_user is probably wrong.  */
3652
            put_user(stfs.f_type, &target_stfs->f_type);
3653
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
3654
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
3655
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
3656
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
3657
            put_user(stfs.f_files, &target_stfs->f_files);
3658
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
3659
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
3660
            put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
3661
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
3662
            unlock_user_struct(target_stfs, arg3, 0);
3663
        }
3664
        break;
3665
    case TARGET_NR_fstatfs64:
3666
        ret = get_errno(fstatfs(arg1, &stfs));
3667
        goto convert_statfs64;
3668
#endif
3669
#ifdef TARGET_NR_ioperm
3670
    case TARGET_NR_ioperm:
3671
        goto unimplemented;
3672
#endif
3673
#ifdef TARGET_NR_socketcall
3674
    case TARGET_NR_socketcall:
3675
        ret = do_socketcall(arg1, arg2);
3676
        break;
3677
#endif
3678
#ifdef TARGET_NR_accept
3679
    case TARGET_NR_accept:
3680
        ret = do_accept(arg1, arg2, arg3);
3681
        break;
3682
#endif
3683
#ifdef TARGET_NR_bind
3684
    case TARGET_NR_bind:
3685
        ret = do_bind(arg1, arg2, arg3);
3686
        break;
3687
#endif
3688
#ifdef TARGET_NR_connect
3689
    case TARGET_NR_connect:
3690
        ret = do_connect(arg1, arg2, arg3);
3691
        break;
3692
#endif
3693
#ifdef TARGET_NR_getpeername
3694
    case TARGET_NR_getpeername:
3695
        ret = do_getpeername(arg1, arg2, arg3);
3696
        break;
3697
#endif
3698
#ifdef TARGET_NR_getsockname
3699
    case TARGET_NR_getsockname:
3700
        ret = do_getsockname(arg1, arg2, arg3);
3701
        break;
3702
#endif
3703
#ifdef TARGET_NR_getsockopt
3704
    case TARGET_NR_getsockopt:
3705
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3706
        break;
3707
#endif
3708
#ifdef TARGET_NR_listen
3709
    case TARGET_NR_listen:
3710
        ret = get_errno(listen(arg1, arg2));
3711
        break;
3712
#endif
3713
#ifdef TARGET_NR_recv
3714
    case TARGET_NR_recv:
3715
        ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3716
        break;
3717
#endif
3718
#ifdef TARGET_NR_recvfrom
3719
    case TARGET_NR_recvfrom:
3720
        ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3721
        break;
3722
#endif
3723
#ifdef TARGET_NR_recvmsg
3724
    case TARGET_NR_recvmsg:
3725
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
3726
        break;
3727
#endif
3728
#ifdef TARGET_NR_send
3729
    case TARGET_NR_send:
3730
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3731
        break;
3732
#endif
3733
#ifdef TARGET_NR_sendmsg
3734
    case TARGET_NR_sendmsg:
3735
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
3736
        break;
3737
#endif
3738
#ifdef TARGET_NR_sendto
3739
    case TARGET_NR_sendto:
3740
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3741
        break;
3742
#endif
3743
#ifdef TARGET_NR_shutdown
3744
    case TARGET_NR_shutdown:
3745
        ret = get_errno(shutdown(arg1, arg2));
3746
        break;
3747
#endif
3748
#ifdef TARGET_NR_socket
3749
    case TARGET_NR_socket:
3750
        ret = do_socket(arg1, arg2, arg3);
3751
        break;
3752
#endif
3753
#ifdef TARGET_NR_socketpair
3754
    case TARGET_NR_socketpair:
3755
        ret = do_socketpair(arg1, arg2, arg3, arg4);
3756
        break;
3757
#endif
3758
#ifdef TARGET_NR_setsockopt
3759
    case TARGET_NR_setsockopt:
3760
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3761
        break;
3762
#endif
3763

    
3764
    case TARGET_NR_syslog:
3765
        p = lock_user_string(arg2);
3766
        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
3767
        unlock_user(p, arg2, 0);
3768
        break;
3769

    
3770
    case TARGET_NR_setitimer:
3771
        {
3772
            struct itimerval value, ovalue, *pvalue;
3773

    
3774
            if (arg2) {
3775
                pvalue = &value;
3776
                target_to_host_timeval(&pvalue->it_interval,
3777
                                       arg2);
3778
                target_to_host_timeval(&pvalue->it_value,
3779
                                       arg2 + sizeof(struct target_timeval));
3780
            } else {
3781
                pvalue = NULL;
3782
            }
3783
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
3784
            if (!is_error(ret) && arg3) {
3785
                host_to_target_timeval(arg3,
3786
                                       &ovalue.it_interval);
3787
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
3788
                                       &ovalue.it_value);
3789
            }
3790
        }
3791
        break;
3792
    case TARGET_NR_getitimer:
3793
        {
3794
            struct itimerval value;
3795

    
3796
            ret = get_errno(getitimer(arg1, &value));
3797
            if (!is_error(ret) && arg2) {
3798
                host_to_target_timeval(arg2,
3799
                                       &value.it_interval);
3800
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
3801
                                       &value.it_value);
3802
            }
3803
        }
3804
        break;
3805
    case TARGET_NR_stat:
3806
        p = lock_user_string(arg1);
3807
        ret = get_errno(stat(path(p), &st));
3808
        unlock_user(p, arg1, 0);
3809
        goto do_stat;
3810
    case TARGET_NR_lstat:
3811
        p = lock_user_string(arg1);
3812
        ret = get_errno(lstat(path(p), &st));
3813
        unlock_user(p, arg1, 0);
3814
        goto do_stat;
3815
    case TARGET_NR_fstat:
3816
        {
3817
            ret = get_errno(fstat(arg1, &st));
3818
        do_stat:
3819
            if (!is_error(ret)) {
3820
                struct target_stat *target_st;
3821

    
3822
                lock_user_struct(target_st, arg2, 0);
3823
#if defined(TARGET_MIPS) || defined(TARGET_SPARC64)
3824
                target_st->st_dev = tswap32(st.st_dev);
3825
#else
3826
                target_st->st_dev = tswap16(st.st_dev);
3827
#endif
3828
                target_st->st_ino = tswapl(st.st_ino);
3829
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
3830
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
3831
                target_st->st_uid = tswap32(st.st_uid);
3832
                target_st->st_gid = tswap32(st.st_gid);
3833
#elif defined(TARGET_SPARC64)
3834
                target_st->st_mode = tswap32(st.st_mode);
3835
                target_st->st_uid = tswap32(st.st_uid);
3836
                target_st->st_gid = tswap32(st.st_gid);
3837
#else
3838
                target_st->st_mode = tswap16(st.st_mode);
3839
                target_st->st_uid = tswap16(st.st_uid);
3840
                target_st->st_gid = tswap16(st.st_gid);
3841
#endif
3842
#if defined(TARGET_MIPS)
3843
                /* If this is the same on PPC, then just merge w/ the above ifdef */
3844
                target_st->st_nlink = tswapl(st.st_nlink);
3845
                target_st->st_rdev = tswapl(st.st_rdev);
3846
#elif defined(TARGET_SPARC64)
3847
                target_st->st_nlink = tswap32(st.st_nlink);
3848
                target_st->st_rdev = tswap32(st.st_rdev);
3849
#else
3850
                target_st->st_nlink = tswap16(st.st_nlink);
3851
                target_st->st_rdev = tswap16(st.st_rdev);
3852
#endif
3853
                target_st->st_size = tswapl(st.st_size);
3854
                target_st->st_blksize = tswapl(st.st_blksize);
3855
                target_st->st_blocks = tswapl(st.st_blocks);
3856
                target_st->target_st_atime = tswapl(st.st_atime);
3857
                target_st->target_st_mtime = tswapl(st.st_mtime);
3858
                target_st->target_st_ctime = tswapl(st.st_ctime);
3859
                unlock_user_struct(target_st, arg2, 1);
3860
            }
3861
        }
3862
        break;
3863
#ifdef TARGET_NR_olduname
3864
    case TARGET_NR_olduname:
3865
        goto unimplemented;
3866
#endif
3867
#ifdef TARGET_NR_iopl
3868
    case TARGET_NR_iopl:
3869
        goto unimplemented;
3870
#endif
3871
    case TARGET_NR_vhangup:
3872
        ret = get_errno(vhangup());
3873
        break;
3874
#ifdef TARGET_NR_idle
3875
    case TARGET_NR_idle:
3876
        goto unimplemented;
3877
#endif
3878
#ifdef TARGET_NR_syscall
3879
    case TARGET_NR_syscall:
3880
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
3881
            break;
3882
#endif
3883
    case TARGET_NR_wait4:
3884
        {
3885
            int status;
3886
            target_long status_ptr = arg2;
3887
            struct rusage rusage, *rusage_ptr;
3888
            target_ulong target_rusage = arg4;
3889
            if (target_rusage)
3890
                rusage_ptr = &rusage;
3891
            else
3892
                rusage_ptr = NULL;
3893
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
3894
            if (!is_error(ret)) {
3895
                if (status_ptr)
3896
                    tputl(status_ptr, status);
3897
                if (target_rusage) {
3898
                    host_to_target_rusage(target_rusage, &rusage);
3899
                }
3900
            }
3901
        }
3902
        break;
3903
#ifdef TARGET_NR_swapoff
3904
    case TARGET_NR_swapoff:
3905
        p = lock_user_string(arg1);
3906
        ret = get_errno(swapoff(p));
3907
        unlock_user(p, arg1, 0);
3908
        break;
3909
#endif
3910
    case TARGET_NR_sysinfo:
3911
        {
3912
            struct target_sysinfo *target_value;
3913
            struct sysinfo value;
3914
            ret = get_errno(sysinfo(&value));
3915
            if (!is_error(ret) && arg1)
3916
            {
3917
                /* ??? __put_user is probably wrong.  */
3918
                lock_user_struct(target_value, arg1, 0);
3919
                __put_user(value.uptime, &target_value->uptime);
3920
                __put_user(value.loads[0], &target_value->loads[0]);
3921
                __put_user(value.loads[1], &target_value->loads[1]);
3922
                __put_user(value.loads[2], &target_value->loads[2]);
3923
                __put_user(value.totalram, &target_value->totalram);
3924
                __put_user(value.freeram, &target_value->freeram);
3925
                __put_user(value.sharedram, &target_value->sharedram);
3926
                __put_user(value.bufferram, &target_value->bufferram);
3927
                __put_user(value.totalswap, &target_value->totalswap);
3928
                __put_user(value.freeswap, &target_value->freeswap);
3929
                __put_user(value.procs, &target_value->procs);
3930
                __put_user(value.totalhigh, &target_value->totalhigh);
3931
                __put_user(value.freehigh, &target_value->freehigh);
3932
                __put_user(value.mem_unit, &target_value->mem_unit);
3933
                unlock_user_struct(target_value, arg1, 1);
3934
            }
3935
        }
3936
        break;
3937
#ifdef TARGET_NR_ipc
3938
    case TARGET_NR_ipc:
3939
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3940
        break;
3941
#endif
3942
    case TARGET_NR_fsync:
3943
        ret = get_errno(fsync(arg1));
3944
        break;
3945
    case TARGET_NR_clone:
3946
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3947
        break;
3948
#ifdef __NR_exit_group
3949
        /* new thread calls */
3950
    case TARGET_NR_exit_group:
3951
        gdb_exit(cpu_env, arg1);
3952
        ret = get_errno(exit_group(arg1));
3953
        break;
3954
#endif
3955
    case TARGET_NR_setdomainname:
3956
        p = lock_user_string(arg1);
3957
        ret = get_errno(setdomainname(p, arg2));
3958
        unlock_user(p, arg1, 0);
3959
        break;
3960
    case TARGET_NR_uname:
3961
        /* no need to transcode because we use the linux syscall */
3962
        {
3963
            struct new_utsname * buf;
3964

    
3965
            lock_user_struct(buf, arg1, 0);
3966
            ret = get_errno(sys_uname(buf));
3967
            if (!is_error(ret)) {
3968
                /* Overrite the native machine name with whatever is being
3969
                   emulated. */
3970
                strcpy (buf->machine, UNAME_MACHINE);
3971
                /* Allow the user to override the reported release.  */
3972
                if (qemu_uname_release && *qemu_uname_release)
3973
                  strcpy (buf->release, qemu_uname_release);
3974
            }
3975
            unlock_user_struct(buf, arg1, 1);
3976
        }
3977
        break;
3978
#ifdef TARGET_I386
3979
    case TARGET_NR_modify_ldt:
3980
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3981
        break;
3982
#if !defined(TARGET_X86_64)
3983
    case TARGET_NR_vm86old:
3984
        goto unimplemented;
3985
    case TARGET_NR_vm86:
3986
        ret = do_vm86(cpu_env, arg1, arg2);
3987
        break;
3988
#endif
3989
#endif
3990
    case TARGET_NR_adjtimex:
3991
        goto unimplemented;
3992
#ifdef TARGET_NR_create_module
3993
    case TARGET_NR_create_module:
3994
#endif
3995
    case TARGET_NR_init_module:
3996
    case TARGET_NR_delete_module:
3997
#ifdef TARGET_NR_get_kernel_syms
3998
    case TARGET_NR_get_kernel_syms:
3999
#endif
4000
        goto unimplemented;
4001
    case TARGET_NR_quotactl:
4002
        goto unimplemented;
4003
    case TARGET_NR_getpgid:
4004
        ret = get_errno(getpgid(arg1));
4005
        break;
4006
    case TARGET_NR_fchdir:
4007
        ret = get_errno(fchdir(arg1));
4008
        break;
4009
#ifdef TARGET_NR_bdflush /* not on x86_64 */
4010
    case TARGET_NR_bdflush:
4011
        goto unimplemented;
4012
#endif
4013
#ifdef TARGET_NR_sysfs
4014
    case TARGET_NR_sysfs:
4015
        goto unimplemented;
4016
#endif
4017
    case TARGET_NR_personality:
4018
        ret = get_errno(personality(arg1));
4019
        break;
4020
#ifdef TARGET_NR_afs_syscall
4021
    case TARGET_NR_afs_syscall:
4022
        goto unimplemented;
4023
#endif
4024
#ifdef TARGET_NR__llseek /* Not on alpha */
4025
    case TARGET_NR__llseek:
4026
        {
4027
#if defined (__x86_64__)
4028
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
4029
            tput64(arg4, ret);
4030
#else
4031
            int64_t res;
4032
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4033
            tput64(arg4, res);
4034
#endif
4035
        }
4036
        break;
4037
#endif
4038
    case TARGET_NR_getdents:
4039
#if TARGET_LONG_SIZE != 4
4040
        goto unimplemented;
4041
#warning not supported
4042
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
4043
        {
4044
            struct target_dirent *target_dirp;
4045
            struct dirent *dirp;
4046
            target_long count = arg3;
4047

    
4048
            dirp = malloc(count);
4049
            if (!dirp)
4050
                return -ENOMEM;
4051

    
4052
            ret = get_errno(sys_getdents(arg1, dirp, count));
4053
            if (!is_error(ret)) {
4054
                struct dirent *de;
4055
                struct target_dirent *tde;
4056
                int len = ret;
4057
                int reclen, treclen;
4058
                int count1, tnamelen;
4059

    
4060
                count1 = 0;
4061
                de = dirp;
4062
                target_dirp = lock_user(arg2, count, 0);
4063
                tde = target_dirp;
4064
                while (len > 0) {
4065
                    reclen = de->d_reclen;
4066
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
4067
                    tde->d_reclen = tswap16(treclen);
4068
                    tde->d_ino = tswapl(de->d_ino);
4069
                    tde->d_off = tswapl(de->d_off);
4070
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
4071
                    if (tnamelen > 256)
4072
                        tnamelen = 256;
4073
                    /* XXX: may not be correct */
4074
                    strncpy(tde->d_name, de->d_name, tnamelen);
4075
                    de = (struct dirent *)((char *)de + reclen);
4076
                    len -= reclen;
4077
                    tde = (struct target_dirent *)((char *)tde + treclen);
4078
                    count1 += treclen;
4079
                }
4080
                ret = count1;
4081
            }
4082
            unlock_user(target_dirp, arg2, ret);
4083
            free(dirp);
4084
        }
4085
#else
4086
        {
4087
            struct dirent *dirp;
4088
            target_long count = arg3;
4089

    
4090
            dirp = lock_user(arg2, count, 0);
4091
            ret = get_errno(sys_getdents(arg1, dirp, count));
4092
            if (!is_error(ret)) {
4093
                struct dirent *de;
4094
                int len = ret;
4095
                int reclen;
4096
                de = dirp;
4097
                while (len > 0) {
4098
                    reclen = de->d_reclen;
4099
                    if (reclen > len)
4100
                        break;
4101
                    de->d_reclen = tswap16(reclen);
4102
                    tswapls(&de->d_ino);
4103
                    tswapls(&de->d_off);
4104
                    de = (struct dirent *)((char *)de + reclen);
4105
                    len -= reclen;
4106
                }
4107
            }
4108
            unlock_user(dirp, arg2, ret);
4109
        }
4110
#endif
4111
        break;
4112
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
4113
    case TARGET_NR_getdents64:
4114
        {
4115
            struct dirent64 *dirp;
4116
            target_long count = arg3;
4117
            dirp = lock_user(arg2, count, 0);
4118
            ret = get_errno(sys_getdents64(arg1, dirp, count));
4119
            if (!is_error(ret)) {
4120
                struct dirent64 *de;
4121
                int len = ret;
4122
                int reclen;
4123
                de = dirp;
4124
                while (len > 0) {
4125
                    reclen = de->d_reclen;
4126
                    if (reclen > len)
4127
                        break;
4128
                    de->d_reclen = tswap16(reclen);
4129
                    tswap64s(&de->d_ino);
4130
                    tswap64s(&de->d_off);
4131
                    de = (struct dirent64 *)((char *)de + reclen);
4132
                    len -= reclen;
4133
                }
4134
            }
4135
            unlock_user(dirp, arg2, ret);
4136
        }
4137
        break;
4138
#endif /* TARGET_NR_getdents64 */
4139
#ifdef TARGET_NR__newselect
4140
    case TARGET_NR__newselect:
4141
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
4142
        break;
4143
#endif
4144
#ifdef TARGET_NR_poll
4145
    case TARGET_NR_poll:
4146
        {
4147
            struct target_pollfd *target_pfd;
4148
            unsigned int nfds = arg2;
4149
            int timeout = arg3;
4150
            struct pollfd *pfd;
4151
            unsigned int i;
4152

    
4153
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
4154
            pfd = alloca(sizeof(struct pollfd) * nfds);
4155
            for(i = 0; i < nfds; i++) {
4156
                pfd[i].fd = tswap32(target_pfd[i].fd);
4157
                pfd[i].events = tswap16(target_pfd[i].events);
4158
            }
4159
            ret = get_errno(poll(pfd, nfds, timeout));
4160
            if (!is_error(ret)) {
4161
                for(i = 0; i < nfds; i++) {
4162
                    target_pfd[i].revents = tswap16(pfd[i].revents);
4163
                }
4164
                ret += nfds * (sizeof(struct target_pollfd)
4165
                               - sizeof(struct pollfd));
4166
            }
4167
            unlock_user(target_pfd, arg1, ret);
4168
        }
4169
        break;
4170
#endif
4171
    case TARGET_NR_flock:
4172
        /* NOTE: the flock constant seems to be the same for every
4173
           Linux platform */
4174
        ret = get_errno(flock(arg1, arg2));
4175
        break;
4176
    case TARGET_NR_readv:
4177
        {
4178
            int count = arg3;
4179
            struct iovec *vec;
4180

    
4181
            vec = alloca(count * sizeof(struct iovec));
4182
            lock_iovec(vec, arg2, count, 0);
4183
            ret = get_errno(readv(arg1, vec, count));
4184
            unlock_iovec(vec, arg2, count, 1);
4185
        }
4186
        break;
4187
    case TARGET_NR_writev:
4188
        {
4189
            int count = arg3;
4190
            struct iovec *vec;
4191

    
4192
            vec = alloca(count * sizeof(struct iovec));
4193
            lock_iovec(vec, arg2, count, 1);
4194
            ret = get_errno(writev(arg1, vec, count));
4195
            unlock_iovec(vec, arg2, count, 0);
4196
        }
4197
        break;
4198
    case TARGET_NR_getsid:
4199
        ret = get_errno(getsid(arg1));
4200
        break;
4201
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
4202
    case TARGET_NR_fdatasync:
4203
        ret = get_errno(fdatasync(arg1));
4204
        break;
4205
#endif
4206
    case TARGET_NR__sysctl:
4207
        /* We don't implement this, but ENODIR is always a safe
4208
           return value. */
4209
        return -ENOTDIR;
4210
    case TARGET_NR_sched_setparam:
4211
        {
4212
            struct sched_param *target_schp;
4213
            struct sched_param schp;
4214

    
4215
            lock_user_struct(target_schp, arg2, 1);
4216
            schp.sched_priority = tswap32(target_schp->sched_priority);
4217
            unlock_user_struct(target_schp, arg2, 0);
4218
            ret = get_errno(sched_setparam(arg1, &schp));
4219
        }
4220
        break;
4221
    case TARGET_NR_sched_getparam:
4222
        {
4223
            struct sched_param *target_schp;
4224
            struct sched_param schp;
4225
            ret = get_errno(sched_getparam(arg1, &schp));
4226
            if (!is_error(ret)) {
4227
                lock_user_struct(target_schp, arg2, 0);
4228
                target_schp->sched_priority = tswap32(schp.sched_priority);
4229
                unlock_user_struct(target_schp, arg2, 1);
4230
            }
4231
        }
4232
        break;
4233
    case TARGET_NR_sched_setscheduler:
4234
        {
4235
            struct sched_param *target_schp;
4236
            struct sched_param schp;
4237
            lock_user_struct(target_schp, arg3, 1);
4238
            schp.sched_priority = tswap32(target_schp->sched_priority);
4239
            unlock_user_struct(target_schp, arg3, 0);
4240
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
4241
        }
4242
        break;
4243
    case TARGET_NR_sched_getscheduler:
4244
        ret = get_errno(sched_getscheduler(arg1));
4245
        break;
4246
    case TARGET_NR_sched_yield:
4247
        ret = get_errno(sched_yield());
4248
        break;
4249
    case TARGET_NR_sched_get_priority_max:
4250
        ret = get_errno(sched_get_priority_max(arg1));
4251
        break;
4252
    case TARGET_NR_sched_get_priority_min:
4253
        ret = get_errno(sched_get_priority_min(arg1));
4254
        break;
4255
    case TARGET_NR_sched_rr_get_interval:
4256
        {
4257
            struct timespec ts;
4258
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
4259
            if (!is_error(ret)) {
4260
                host_to_target_timespec(arg2, &ts);
4261
            }
4262
        }
4263
        break;
4264
    case TARGET_NR_nanosleep:
4265
        {
4266
            struct timespec req, rem;
4267
            target_to_host_timespec(&req, arg1);
4268
            ret = get_errno(nanosleep(&req, &rem));
4269
            if (is_error(ret) && arg2) {
4270
                host_to_target_timespec(arg2, &rem);
4271
            }
4272
        }
4273
        break;
4274
#ifdef TARGET_NR_query_module
4275
    case TARGET_NR_query_module:
4276
        goto unimplemented;
4277
#endif
4278
#ifdef TARGET_NR_nfsservctl
4279
    case TARGET_NR_nfsservctl:
4280
        goto unimplemented;
4281
#endif
4282
    case TARGET_NR_prctl:
4283
        switch (arg1)
4284
            {
4285
            case PR_GET_PDEATHSIG:
4286
                {
4287
                    int deathsig;
4288
                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
4289
                    if (!is_error(ret) && arg2)
4290
                        tput32(arg2, deathsig);
4291
                }
4292
                break;
4293
            default:
4294
                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
4295
                break;
4296
            }
4297
        break;
4298
#ifdef TARGET_NR_pread
4299
    case TARGET_NR_pread:
4300
        page_unprotect_range(arg2, arg3);
4301
        p = lock_user(arg2, arg3, 0);
4302
        ret = get_errno(pread(arg1, p, arg3, arg4));
4303
        unlock_user(p, arg2, ret);
4304
        break;
4305
    case TARGET_NR_pwrite:
4306
        p = lock_user(arg2, arg3, 1);
4307
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
4308
        unlock_user(p, arg2, 0);
4309
        break;
4310
#endif
4311
    case TARGET_NR_getcwd:
4312
        p = lock_user(arg1, arg2, 0);
4313
        ret = get_errno(sys_getcwd1(p, arg2));
4314
        unlock_user(p, arg1, ret);
4315
        break;
4316
    case TARGET_NR_capget:
4317
        goto unimplemented;
4318
    case TARGET_NR_capset:
4319
        goto unimplemented;
4320
    case TARGET_NR_sigaltstack:
4321
        goto unimplemented;
4322
    case TARGET_NR_sendfile:
4323
        goto unimplemented;
4324
#ifdef TARGET_NR_getpmsg
4325
    case TARGET_NR_getpmsg:
4326
        goto unimplemented;
4327
#endif
4328
#ifdef TARGET_NR_putpmsg
4329
    case TARGET_NR_putpmsg:
4330
        goto unimplemented;
4331
#endif
4332
#ifdef TARGET_NR_vfork
4333
    case TARGET_NR_vfork:
4334
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
4335
        break;
4336
#endif
4337
#ifdef TARGET_NR_ugetrlimit
4338
    case TARGET_NR_ugetrlimit:
4339
    {
4340
        struct rlimit rlim;
4341
        ret = get_errno(getrlimit(arg1, &rlim));
4342
        if (!is_error(ret)) {
4343
            struct target_rlimit *target_rlim;
4344
            lock_user_struct(target_rlim, arg2, 0);
4345
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
4346
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
4347
            unlock_user_struct(target_rlim, arg2, 1);
4348
        }
4349
        break;
4350
    }
4351
#endif
4352
#ifdef TARGET_NR_truncate64
4353
    case TARGET_NR_truncate64:
4354
        p = lock_user_string(arg1);
4355
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
4356
        unlock_user(p, arg1, 0);
4357
        break;
4358
#endif
4359
#ifdef TARGET_NR_ftruncate64
4360
    case TARGET_NR_ftruncate64:
4361
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
4362
        break;
4363
#endif
4364
#ifdef TARGET_NR_stat64
4365
    case TARGET_NR_stat64:
4366
        p = lock_user_string(arg1);
4367
        ret = get_errno(stat(path(p), &st));
4368
        unlock_user(p, arg1, 0);
4369
        goto do_stat64;
4370
#endif
4371
#ifdef TARGET_NR_lstat64
4372
    case TARGET_NR_lstat64:
4373
        p = lock_user_string(arg1);
4374
        ret = get_errno(lstat(path(p), &st));
4375
        unlock_user(p, arg1, 0);
4376
        goto do_stat64;
4377
#endif
4378
#ifdef TARGET_NR_fstat64
4379
    case TARGET_NR_fstat64:
4380
        {
4381
            ret = get_errno(fstat(arg1, &st));
4382
        do_stat64:
4383
            if (!is_error(ret)) {
4384
#ifdef TARGET_ARM
4385
                if (((CPUARMState *)cpu_env)->eabi) {
4386
                    struct target_eabi_stat64 *target_st;
4387
                    lock_user_struct(target_st, arg2, 1);
4388
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
4389
                    /* put_user is probably wrong.  */
4390
                    put_user(st.st_dev, &target_st->st_dev);
4391
                    put_user(st.st_ino, &target_st->st_ino);
4392
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4393
                    put_user(st.st_ino, &target_st->__st_ino);
4394
#endif
4395
                    put_user(st.st_mode, &target_st->st_mode);
4396
                    put_user(st.st_nlink, &target_st->st_nlink);
4397
                    put_user(st.st_uid, &target_st->st_uid);
4398
                    put_user(st.st_gid, &target_st->st_gid);
4399
                    put_user(st.st_rdev, &target_st->st_rdev);
4400
                    /* XXX: better use of kernel struct */
4401
                    put_user(st.st_size, &target_st->st_size);
4402
                    put_user(st.st_blksize, &target_st->st_blksize);
4403
                    put_user(st.st_blocks, &target_st->st_blocks);
4404
                    put_user(st.st_atime, &target_st->target_st_atime);
4405
                    put_user(st.st_mtime, &target_st->target_st_mtime);
4406
                    put_user(st.st_ctime, &target_st->target_st_ctime);
4407
                    unlock_user_struct(target_st, arg2, 0);
4408
                } else
4409
#endif
4410
                {
4411
                    struct target_stat64 *target_st;
4412
                    lock_user_struct(target_st, arg2, 1);
4413
                    memset(target_st, 0, sizeof(struct target_stat64));
4414
                    /* ??? put_user is probably wrong.  */
4415
                    put_user(st.st_dev, &target_st->st_dev);
4416
                    put_user(st.st_ino, &target_st->st_ino);
4417
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4418
                    put_user(st.st_ino, &target_st->__st_ino);
4419
#endif
4420
                    put_user(st.st_mode, &target_st->st_mode);
4421
                    put_user(st.st_nlink, &target_st->st_nlink);
4422
                    put_user(st.st_uid, &target_st->st_uid);
4423
                    put_user(st.st_gid, &target_st->st_gid);
4424
                    put_user(st.st_rdev, &target_st->st_rdev);
4425
                    /* XXX: better use of kernel struct */
4426
                    put_user(st.st_size, &target_st->st_size);
4427
                    put_user(st.st_blksize, &target_st->st_blksize);
4428
                    put_user(st.st_blocks, &target_st->st_blocks);
4429
                    put_user(st.st_atime, &target_st->target_st_atime);
4430
                    put_user(st.st_mtime, &target_st->target_st_mtime);
4431
                    put_user(st.st_ctime, &target_st->target_st_ctime);
4432
                    unlock_user_struct(target_st, arg2, 0);
4433
                }
4434
            }
4435
        }
4436
        break;
4437
#endif
4438
#ifdef USE_UID16
4439
    case TARGET_NR_lchown:
4440
        p = lock_user_string(arg1);
4441
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
4442
        unlock_user(p, arg1, 0);
4443
        break;
4444
    case TARGET_NR_getuid:
4445
        ret = get_errno(high2lowuid(getuid()));
4446
        break;
4447
    case TARGET_NR_getgid:
4448
        ret = get_errno(high2lowgid(getgid()));
4449
        break;
4450
    case TARGET_NR_geteuid:
4451
        ret = get_errno(high2lowuid(geteuid()));
4452
        break;
4453
    case TARGET_NR_getegid:
4454
        ret = get_errno(high2lowgid(getegid()));
4455
        break;
4456
    case TARGET_NR_setreuid:
4457
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
4458
        break;
4459
    case TARGET_NR_setregid:
4460
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
4461
        break;
4462
    case TARGET_NR_getgroups:
4463
        {
4464
            int gidsetsize = arg1;
4465
            uint16_t *target_grouplist;
4466
            gid_t *grouplist;
4467
            int i;
4468

    
4469
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4470
            ret = get_errno(getgroups(gidsetsize, grouplist));
4471
            if (!is_error(ret)) {
4472
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
4473
                for(i = 0;i < gidsetsize; i++)
4474
                    target_grouplist[i] = tswap16(grouplist[i]);
4475
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
4476
            }
4477
        }
4478
        break;
4479
    case TARGET_NR_setgroups:
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
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
4488
            for(i = 0;i < gidsetsize; i++)
4489
                grouplist[i] = tswap16(target_grouplist[i]);
4490
            unlock_user(target_grouplist, arg2, 0);
4491
            ret = get_errno(setgroups(gidsetsize, grouplist));
4492
        }
4493
        break;
4494
    case TARGET_NR_fchown:
4495
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
4496
        break;
4497
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
4498
    case TARGET_NR_fchownat:
4499
        if (!arg2) {
4500
            ret = -EFAULT;
4501
            goto fail;
4502
        }
4503
        p = lock_user_string(arg2);
4504
        if (!access_ok(VERIFY_READ, p, 1))
4505
            ret = -EFAULT;
4506
        else
4507
            ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
4508
        if (p)
4509
            unlock_user(p, arg2, 0);
4510
        break;
4511
#endif
4512
#ifdef TARGET_NR_setresuid
4513
    case TARGET_NR_setresuid:
4514
        ret = get_errno(setresuid(low2highuid(arg1),
4515
                                  low2highuid(arg2),
4516
                                  low2highuid(arg3)));
4517
        break;
4518
#endif
4519
#ifdef TARGET_NR_getresuid
4520
    case TARGET_NR_getresuid:
4521
        {
4522
            uid_t ruid, euid, suid;
4523
            ret = get_errno(getresuid(&ruid, &euid, &suid));
4524
            if (!is_error(ret)) {
4525
                tput16(arg1, tswap16(high2lowuid(ruid)));
4526
                tput16(arg2, tswap16(high2lowuid(euid)));
4527
                tput16(arg3, tswap16(high2lowuid(suid)));
4528
            }
4529
        }
4530
        break;
4531
#endif
4532
#ifdef TARGET_NR_getresgid
4533
    case TARGET_NR_setresgid:
4534
        ret = get_errno(setresgid(low2highgid(arg1),
4535
                                  low2highgid(arg2),
4536
                                  low2highgid(arg3)));
4537
        break;
4538
#endif
4539
#ifdef TARGET_NR_getresgid
4540
    case TARGET_NR_getresgid:
4541
        {
4542
            gid_t rgid, egid, sgid;
4543
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
4544
            if (!is_error(ret)) {
4545
                tput16(arg1, tswap16(high2lowgid(rgid)));
4546
                tput16(arg2, tswap16(high2lowgid(egid)));
4547
                tput16(arg3, tswap16(high2lowgid(sgid)));
4548
            }
4549
        }
4550
        break;
4551
#endif
4552
    case TARGET_NR_chown:
4553
        p = lock_user_string(arg1);
4554
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
4555
        unlock_user(p, arg1, 0);
4556
        break;
4557
    case TARGET_NR_setuid:
4558
        ret = get_errno(setuid(low2highuid(arg1)));
4559
        break;
4560
    case TARGET_NR_setgid:
4561
        ret = get_errno(setgid(low2highgid(arg1)));
4562
        break;
4563
    case TARGET_NR_setfsuid:
4564
        ret = get_errno(setfsuid(arg1));
4565
        break;
4566
    case TARGET_NR_setfsgid:
4567
        ret = get_errno(setfsgid(arg1));
4568
        break;
4569
#endif /* USE_UID16 */
4570

    
4571
#ifdef TARGET_NR_lchown32
4572
    case TARGET_NR_lchown32:
4573
        p = lock_user_string(arg1);
4574
        ret = get_errno(lchown(p, arg2, arg3));
4575
        unlock_user(p, arg1, 0);
4576
        break;
4577
#endif
4578
#ifdef TARGET_NR_getuid32
4579
    case TARGET_NR_getuid32:
4580
        ret = get_errno(getuid());
4581
        break;
4582
#endif
4583
#ifdef TARGET_NR_getgid32
4584
    case TARGET_NR_getgid32:
4585
        ret = get_errno(getgid());
4586
        break;
4587
#endif
4588
#ifdef TARGET_NR_geteuid32
4589
    case TARGET_NR_geteuid32:
4590
        ret = get_errno(geteuid());
4591
        break;
4592
#endif
4593
#ifdef TARGET_NR_getegid32
4594
    case TARGET_NR_getegid32:
4595
        ret = get_errno(getegid());
4596
        break;
4597
#endif
4598
#ifdef TARGET_NR_setreuid32
4599
    case TARGET_NR_setreuid32:
4600
        ret = get_errno(setreuid(arg1, arg2));
4601
        break;
4602
#endif
4603
#ifdef TARGET_NR_setregid32
4604
    case TARGET_NR_setregid32:
4605
        ret = get_errno(setregid(arg1, arg2));
4606
        break;
4607
#endif
4608
#ifdef TARGET_NR_getgroups32
4609
    case TARGET_NR_getgroups32:
4610
        {
4611
            int gidsetsize = arg1;
4612
            uint32_t *target_grouplist;
4613
            gid_t *grouplist;
4614
            int i;
4615

    
4616
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4617
            ret = get_errno(getgroups(gidsetsize, grouplist));
4618
            if (!is_error(ret)) {
4619
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
4620
                for(i = 0;i < gidsetsize; i++)
4621
                    target_grouplist[i] = tswap32(grouplist[i]);
4622
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
4623
            }
4624
        }
4625
        break;
4626
#endif
4627
#ifdef TARGET_NR_setgroups32
4628
    case TARGET_NR_setgroups32:
4629
        {
4630
            int gidsetsize = arg1;
4631
            uint32_t *target_grouplist;
4632
            gid_t *grouplist;
4633
            int i;
4634

    
4635
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4636
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
4637
            for(i = 0;i < gidsetsize; i++)
4638
                grouplist[i] = tswap32(target_grouplist[i]);
4639
            unlock_user(target_grouplist, arg2, 0);
4640
            ret = get_errno(setgroups(gidsetsize, grouplist));
4641
        }
4642
        break;
4643
#endif
4644
#ifdef TARGET_NR_fchown32
4645
    case TARGET_NR_fchown32:
4646
        ret = get_errno(fchown(arg1, arg2, arg3));
4647
        break;
4648
#endif
4649
#ifdef TARGET_NR_setresuid32
4650
    case TARGET_NR_setresuid32:
4651
        ret = get_errno(setresuid(arg1, arg2, arg3));
4652
        break;
4653
#endif
4654
#ifdef TARGET_NR_getresuid32
4655
    case TARGET_NR_getresuid32:
4656
        {
4657
            uid_t ruid, euid, suid;
4658
            ret = get_errno(getresuid(&ruid, &euid, &suid));
4659
            if (!is_error(ret)) {
4660
                tput32(arg1, tswap32(ruid));
4661
                tput32(arg2, tswap32(euid));
4662
                tput32(arg3, tswap32(suid));
4663
            }
4664
        }
4665
        break;
4666
#endif
4667
#ifdef TARGET_NR_setresgid32
4668
    case TARGET_NR_setresgid32:
4669
        ret = get_errno(setresgid(arg1, arg2, arg3));
4670
        break;
4671
#endif
4672
#ifdef TARGET_NR_getresgid32
4673
    case TARGET_NR_getresgid32:
4674
        {
4675
            gid_t rgid, egid, sgid;
4676
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
4677
            if (!is_error(ret)) {
4678
                tput32(arg1, tswap32(rgid));
4679
                tput32(arg2, tswap32(egid));
4680
                tput32(arg3, tswap32(sgid));
4681
            }
4682
        }
4683
        break;
4684
#endif
4685
#ifdef TARGET_NR_chown32
4686
    case TARGET_NR_chown32:
4687
        p = lock_user_string(arg1);
4688
        ret = get_errno(chown(p, arg2, arg3));
4689
        unlock_user(p, arg1, 0);
4690
        break;
4691
#endif
4692
#ifdef TARGET_NR_setuid32
4693
    case TARGET_NR_setuid32:
4694
        ret = get_errno(setuid(arg1));
4695
        break;
4696
#endif
4697
#ifdef TARGET_NR_setgid32
4698
    case TARGET_NR_setgid32:
4699
        ret = get_errno(setgid(arg1));
4700
        break;
4701
#endif
4702
#ifdef TARGET_NR_setfsuid32
4703
    case TARGET_NR_setfsuid32:
4704
        ret = get_errno(setfsuid(arg1));
4705
        break;
4706
#endif
4707
#ifdef TARGET_NR_setfsgid32
4708
    case TARGET_NR_setfsgid32:
4709
        ret = get_errno(setfsgid(arg1));
4710
        break;
4711
#endif
4712

    
4713
    case TARGET_NR_pivot_root:
4714
        goto unimplemented;
4715
#ifdef TARGET_NR_mincore
4716
    case TARGET_NR_mincore:
4717
        goto unimplemented;
4718
#endif
4719
#ifdef TARGET_NR_madvise
4720
    case TARGET_NR_madvise:
4721
        /* A straight passthrough may not be safe because qemu sometimes
4722
           turns private flie-backed mappings into anonymous mappings.
4723
           This will break MADV_DONTNEED.
4724
           This is a hint, so ignoring and returning success is ok.  */
4725
        ret = get_errno(0);
4726
        break;
4727
#endif
4728
#if TARGET_LONG_BITS == 32
4729
    case TARGET_NR_fcntl64:
4730
    {
4731
        int cmd;
4732
        struct flock64 fl;
4733
        struct target_flock64 *target_fl;
4734
#ifdef TARGET_ARM
4735
        struct target_eabi_flock64 *target_efl;
4736
#endif
4737

    
4738
        switch(arg2){
4739
        case TARGET_F_GETLK64:
4740
            cmd = F_GETLK64;
4741
            break;
4742
        case TARGET_F_SETLK64:
4743
            cmd = F_SETLK64;
4744
            break;
4745
        case TARGET_F_SETLKW64:
4746
            cmd = F_SETLK64;
4747
            break;
4748
        default:
4749
            cmd = arg2;
4750
            break;
4751
        }
4752

    
4753
        switch(arg2) {
4754
        case TARGET_F_GETLK64:
4755
#ifdef TARGET_ARM
4756
            if (((CPUARMState *)cpu_env)->eabi) {
4757
                lock_user_struct(target_efl, arg3, 1);
4758
                fl.l_type = tswap16(target_efl->l_type);
4759
                fl.l_whence = tswap16(target_efl->l_whence);
4760
                fl.l_start = tswap64(target_efl->l_start);
4761
                fl.l_len = tswap64(target_efl->l_len);
4762
                fl.l_pid = tswapl(target_efl->l_pid);
4763
                unlock_user_struct(target_efl, arg3, 0);
4764
            } else
4765
#endif
4766
            {
4767
                lock_user_struct(target_fl, arg3, 1);
4768
                fl.l_type = tswap16(target_fl->l_type);
4769
                fl.l_whence = tswap16(target_fl->l_whence);
4770
                fl.l_start = tswap64(target_fl->l_start);
4771
                fl.l_len = tswap64(target_fl->l_len);
4772
                fl.l_pid = tswapl(target_fl->l_pid);
4773
                unlock_user_struct(target_fl, arg3, 0);
4774
            }
4775
            ret = get_errno(fcntl(arg1, cmd, &fl));
4776
            if (ret == 0) {
4777
#ifdef TARGET_ARM
4778
                if (((CPUARMState *)cpu_env)->eabi) {
4779
                    lock_user_struct(target_efl, arg3, 0);
4780
                    target_efl->l_type = tswap16(fl.l_type);
4781
                    target_efl->l_whence = tswap16(fl.l_whence);
4782
                    target_efl->l_start = tswap64(fl.l_start);
4783
                    target_efl->l_len = tswap64(fl.l_len);
4784
                    target_efl->l_pid = tswapl(fl.l_pid);
4785
                    unlock_user_struct(target_efl, arg3, 1);
4786
                } else
4787
#endif
4788
                {
4789
                    lock_user_struct(target_fl, arg3, 0);
4790
                    target_fl->l_type = tswap16(fl.l_type);
4791
                    target_fl->l_whence = tswap16(fl.l_whence);
4792
                    target_fl->l_start = tswap64(fl.l_start);
4793
                    target_fl->l_len = tswap64(fl.l_len);
4794
                    target_fl->l_pid = tswapl(fl.l_pid);
4795
                    unlock_user_struct(target_fl, arg3, 1);
4796
                }
4797
            }
4798
            break;
4799

    
4800
        case TARGET_F_SETLK64:
4801
        case TARGET_F_SETLKW64:
4802
#ifdef TARGET_ARM
4803
            if (((CPUARMState *)cpu_env)->eabi) {
4804
                lock_user_struct(target_efl, arg3, 1);
4805
                fl.l_type = tswap16(target_efl->l_type);
4806
                fl.l_whence = tswap16(target_efl->l_whence);
4807
                fl.l_start = tswap64(target_efl->l_start);
4808
                fl.l_len = tswap64(target_efl->l_len);
4809
                fl.l_pid = tswapl(target_efl->l_pid);
4810
                unlock_user_struct(target_efl, arg3, 0);
4811
            } else
4812
#endif
4813
            {
4814
                lock_user_struct(target_fl, arg3, 1);
4815
                fl.l_type = tswap16(target_fl->l_type);
4816
                fl.l_whence = tswap16(target_fl->l_whence);
4817
                fl.l_start = tswap64(target_fl->l_start);
4818
                fl.l_len = tswap64(target_fl->l_len);
4819
                fl.l_pid = tswapl(target_fl->l_pid);
4820
                unlock_user_struct(target_fl, arg3, 0);
4821
            }
4822
            ret = get_errno(fcntl(arg1, cmd, &fl));
4823
            break;
4824
        default:
4825
            ret = get_errno(do_fcntl(arg1, cmd, arg3));
4826
            break;
4827
        }
4828
        break;
4829
    }
4830
#endif
4831
#ifdef TARGET_NR_cacheflush
4832
    case TARGET_NR_cacheflush:
4833
        /* self-modifying code is handled automatically, so nothing needed */
4834
        ret = 0;
4835
        break;
4836
#endif
4837
#ifdef TARGET_NR_security
4838
    case TARGET_NR_security:
4839
        goto unimplemented;
4840
#endif
4841
#ifdef TARGET_NR_getpagesize
4842
    case TARGET_NR_getpagesize:
4843
        ret = TARGET_PAGE_SIZE;
4844
        break;
4845
#endif
4846
    case TARGET_NR_gettid:
4847
        ret = get_errno(gettid());
4848
        break;
4849
#ifdef TARGET_NR_readahead
4850
    case TARGET_NR_readahead:
4851
        goto unimplemented;
4852
#endif
4853
#ifdef TARGET_NR_setxattr
4854
    case TARGET_NR_setxattr:
4855
    case TARGET_NR_lsetxattr:
4856
    case TARGET_NR_fsetxattr:
4857
    case TARGET_NR_getxattr:
4858
    case TARGET_NR_lgetxattr:
4859
    case TARGET_NR_fgetxattr:
4860
    case TARGET_NR_listxattr:
4861
    case TARGET_NR_llistxattr:
4862
    case TARGET_NR_flistxattr:
4863
    case TARGET_NR_removexattr:
4864
    case TARGET_NR_lremovexattr:
4865
    case TARGET_NR_fremovexattr:
4866
        goto unimplemented_nowarn;
4867
#endif
4868
#ifdef TARGET_NR_set_thread_area
4869
    case TARGET_NR_set_thread_area:
4870
#ifdef TARGET_MIPS
4871
      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
4872
      ret = 0;
4873
      break;
4874
#else
4875
      goto unimplemented_nowarn;
4876
#endif
4877
#endif
4878
#ifdef TARGET_NR_get_thread_area
4879
    case TARGET_NR_get_thread_area:
4880
        goto unimplemented_nowarn;
4881
#endif
4882
#ifdef TARGET_NR_getdomainname
4883
    case TARGET_NR_getdomainname:
4884
        goto unimplemented_nowarn;
4885
#endif
4886

    
4887
#ifdef TARGET_NR_clock_gettime
4888
    case TARGET_NR_clock_gettime:
4889
    {
4890
        struct timespec ts;
4891
        ret = get_errno(clock_gettime(arg1, &ts));
4892
        if (!is_error(ret)) {
4893
            host_to_target_timespec(arg2, &ts);
4894
        }
4895
        break;
4896
    }
4897
#endif
4898
#ifdef TARGET_NR_clock_getres
4899
    case TARGET_NR_clock_getres:
4900
    {
4901
        struct timespec ts;
4902
        ret = get_errno(clock_getres(arg1, &ts));
4903
        if (!is_error(ret)) {
4904
            host_to_target_timespec(arg2, &ts);
4905
        }
4906
        break;
4907
    }
4908
#endif
4909

    
4910
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
4911
    case TARGET_NR_set_tid_address:
4912
      ret = get_errno(set_tid_address((int *) arg1));
4913
      break;
4914
#endif
4915

    
4916
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
4917
    case TARGET_NR_tkill:
4918
        ret = get_errno(sys_tkill((int)arg1, (int)arg2));
4919
        break;
4920
#endif
4921

    
4922
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
4923
    case TARGET_NR_tgkill:
4924
        ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3));
4925
        break;
4926
#endif
4927

    
4928
#ifdef TARGET_NR_set_robust_list
4929
    case TARGET_NR_set_robust_list:
4930
        goto unimplemented_nowarn;
4931
#endif
4932

    
4933
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
4934
    case TARGET_NR_utimensat:
4935
        {
4936
            struct timespec ts[2];
4937
            target_to_host_timespec(ts, arg3);
4938
            target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
4939
            if (!arg2)
4940
                ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4));
4941
            else {
4942
                p = lock_user_string(arg2);
4943
                if (!access_ok(VERIFY_READ, p, 1))
4944
                    ret = -EFAULT;
4945
                else
4946
                    ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4));
4947
                if (p)
4948
                    unlock_user(p, arg2, 0);
4949
            }
4950
        }
4951
        break;
4952
#endif
4953

    
4954
    default:
4955
    unimplemented:
4956
        gemu_log("qemu: Unsupported syscall: %d\n", num);
4957
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
4958
    unimplemented_nowarn:
4959
#endif
4960
        ret = -ENOSYS;
4961
        break;
4962
    }
4963
 fail:
4964
#ifdef DEBUG
4965
    gemu_log(" = %ld\n", ret);
4966
#endif
4967
    return ret;
4968
}