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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 */
60
#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>
64
#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) || defined(TARGET_CRIS)
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/* 16 bit uid wrappers emulation */
79
#define USE_UID16
80
#endif
81

    
82
//#include <linux/msdos_fs.h>
83
#define        VFAT_IOCTL_READDIR_BOTH                _IOR('r', 1, struct dirent [2])
84
#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
{                                        \
98
        return syscall(__NR_##name);        \
99
}
100

    
101
#define _syscall1(type,name,type1,arg1)                \
102
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
{                                                        \
110
        return syscall(__NR_##name, arg1, arg2);        \
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}
112

    
113
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
114
type name (type1 arg1,type2 arg2,type3 arg3)                        \
115
{                                                                \
116
        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
{                                                                                \
122
        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
{                                                                                \
129
        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_getpriority __NR_getpriority
149
#define __NR_sys_linkat __NR_linkat
150
#define __NR_sys_mkdirat __NR_mkdirat
151
#define __NR_sys_mknodat __NR_mknodat
152
#define __NR_sys_openat __NR_openat
153
#define __NR_sys_readlinkat __NR_readlinkat
154
#define __NR_sys_renameat __NR_renameat
155
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
156
#define __NR_sys_symlinkat __NR_symlinkat
157
#define __NR_sys_syslog __NR_syslog
158
#define __NR_sys_tgkill __NR_tgkill
159
#define __NR_sys_tkill __NR_tkill
160
#define __NR_sys_unlinkat __NR_unlinkat
161
#define __NR_sys_utimensat __NR_utimensat
162

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

    
167
#ifdef __NR_gettid
168
_syscall0(int, gettid)
169
#else
170
/* This is a replacement for the host gettid() and must return a host
171
   errno. */
172
static int gettid(void) {
173
    return -ENOSYS;
174
}
175
#endif
176
_syscall1(int,sys_uname,struct new_utsname *,buf)
177
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
178
_syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
179
#endif
180
#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
181
_syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
182
          mode_t,mode,int,flags)
183
#endif
184
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
185
_syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
186
          uid_t,owner,gid_t,group,int,flags)
187
#endif
188
_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
189
_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
190
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
191
_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
192
#endif
193
_syscall2(int, sys_getpriority, int, which, int, who);
194
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
195
          loff_t *, res, uint, wh);
196
#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
197
_syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
198
          int,newdirfd,const char *,newpath,int,flags)
199
#endif
200
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
201
_syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
202
#endif
203
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
204
_syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
205
          mode_t,mode,dev_t,dev)
206
#endif
207
#if defined(TARGET_NR_openat) && defined(__NR_openat)
208
_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
209
#endif
210
#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
211
_syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
212
          char *,buf,size_t,bufsize)
213
#endif
214
#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
215
_syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
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          int,newdirfd,const char *,newpath)
217
#endif
218
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
219
#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
220
_syscall3(int,sys_symlinkat,const char *,oldpath,
221
          int,newdirfd,const char *,newpath)
222
#endif
223
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
224
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
225
_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
226
#endif
227
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
228
_syscall2(int,sys_tkill,int,tid,int,sig)
229
#endif
230
#ifdef __NR_exit_group
231
_syscall1(int,exit_group,int,error_code)
232
#endif
233
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
234
_syscall1(int,set_tid_address,int *,tidptr)
235
#endif
236
#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
237
_syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
238
#endif
239
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
240
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
241
          const struct timespec *,tsp,int,flags)
242
#endif
243

    
244
extern int personality(int);
245
extern int flock(int, int);
246
extern int setfsuid(int);
247
extern int setfsgid(int);
248
extern int setresuid(uid_t, uid_t, uid_t);
249
extern int getresuid(uid_t *, uid_t *, uid_t *);
250
extern int setresgid(gid_t, gid_t, gid_t);
251
extern int getresgid(gid_t *, gid_t *, gid_t *);
252
extern int setgroups(int, gid_t *);
253

    
254
#define ERRNO_TABLE_SIZE 1200
255

    
256
/* target_to_host_errno_table[] is initialized from
257
 * host_to_target_errno_table[] in syscall_init(). */
258
static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
259
};
260

    
261
/*
262
 * This list is the union of errno values overridden in asm-<arch>/errno.h
263
 * minus the errnos that are not actually generic to all archs.
264
 */
265
static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
266
    [EIDRM]                = TARGET_EIDRM,
267
    [ECHRNG]                = TARGET_ECHRNG,
268
    [EL2NSYNC]                = TARGET_EL2NSYNC,
269
    [EL3HLT]                = TARGET_EL3HLT,
270
    [EL3RST]                = TARGET_EL3RST,
271
    [ELNRNG]                = TARGET_ELNRNG,
272
    [EUNATCH]                = TARGET_EUNATCH,
273
    [ENOCSI]                = TARGET_ENOCSI,
274
    [EL2HLT]                = TARGET_EL2HLT,
275
    [EDEADLK]                = TARGET_EDEADLK,
276
    [ENOLCK]                = TARGET_ENOLCK,
277
    [EBADE]                = TARGET_EBADE,
278
    [EBADR]                = TARGET_EBADR,
279
    [EXFULL]                = TARGET_EXFULL,
280
    [ENOANO]                = TARGET_ENOANO,
281
    [EBADRQC]                = TARGET_EBADRQC,
282
    [EBADSLT]                = TARGET_EBADSLT,
283
    [EBFONT]                = TARGET_EBFONT,
284
    [ENOSTR]                = TARGET_ENOSTR,
285
    [ENODATA]                = TARGET_ENODATA,
286
    [ETIME]                = TARGET_ETIME,
287
    [ENOSR]                = TARGET_ENOSR,
288
    [ENONET]                = TARGET_ENONET,
289
    [ENOPKG]                = TARGET_ENOPKG,
290
    [EREMOTE]                = TARGET_EREMOTE,
291
    [ENOLINK]                = TARGET_ENOLINK,
292
    [EADV]                = TARGET_EADV,
293
    [ESRMNT]                = TARGET_ESRMNT,
294
    [ECOMM]                = TARGET_ECOMM,
295
    [EPROTO]                = TARGET_EPROTO,
296
    [EDOTDOT]                = TARGET_EDOTDOT,
297
    [EMULTIHOP]                = TARGET_EMULTIHOP,
298
    [EBADMSG]                = TARGET_EBADMSG,
299
    [ENAMETOOLONG]        = TARGET_ENAMETOOLONG,
300
    [EOVERFLOW]                = TARGET_EOVERFLOW,
301
    [ENOTUNIQ]                = TARGET_ENOTUNIQ,
302
    [EBADFD]                = TARGET_EBADFD,
303
    [EREMCHG]                = TARGET_EREMCHG,
304
    [ELIBACC]                = TARGET_ELIBACC,
305
    [ELIBBAD]                = TARGET_ELIBBAD,
306
    [ELIBSCN]                = TARGET_ELIBSCN,
307
    [ELIBMAX]                = TARGET_ELIBMAX,
308
    [ELIBEXEC]                = TARGET_ELIBEXEC,
309
    [EILSEQ]                = TARGET_EILSEQ,
310
    [ENOSYS]                = TARGET_ENOSYS,
311
    [ELOOP]                = TARGET_ELOOP,
312
    [ERESTART]                = TARGET_ERESTART,
313
    [ESTRPIPE]                = TARGET_ESTRPIPE,
314
    [ENOTEMPTY]                = TARGET_ENOTEMPTY,
315
    [EUSERS]                = TARGET_EUSERS,
316
    [ENOTSOCK]                = TARGET_ENOTSOCK,
317
    [EDESTADDRREQ]        = TARGET_EDESTADDRREQ,
318
    [EMSGSIZE]                = TARGET_EMSGSIZE,
319
    [EPROTOTYPE]        = TARGET_EPROTOTYPE,
320
    [ENOPROTOOPT]        = TARGET_ENOPROTOOPT,
321
    [EPROTONOSUPPORT]        = TARGET_EPROTONOSUPPORT,
322
    [ESOCKTNOSUPPORT]        = TARGET_ESOCKTNOSUPPORT,
323
    [EOPNOTSUPP]        = TARGET_EOPNOTSUPP,
324
    [EPFNOSUPPORT]        = TARGET_EPFNOSUPPORT,
325
    [EAFNOSUPPORT]        = TARGET_EAFNOSUPPORT,
326
    [EADDRINUSE]        = TARGET_EADDRINUSE,
327
    [EADDRNOTAVAIL]        = TARGET_EADDRNOTAVAIL,
328
    [ENETDOWN]                = TARGET_ENETDOWN,
329
    [ENETUNREACH]        = TARGET_ENETUNREACH,
330
    [ENETRESET]                = TARGET_ENETRESET,
331
    [ECONNABORTED]        = TARGET_ECONNABORTED,
332
    [ECONNRESET]        = TARGET_ECONNRESET,
333
    [ENOBUFS]                = TARGET_ENOBUFS,
334
    [EISCONN]                = TARGET_EISCONN,
335
    [ENOTCONN]                = TARGET_ENOTCONN,
336
    [EUCLEAN]                = TARGET_EUCLEAN,
337
    [ENOTNAM]                = TARGET_ENOTNAM,
338
    [ENAVAIL]                = TARGET_ENAVAIL,
339
    [EISNAM]                = TARGET_EISNAM,
340
    [EREMOTEIO]                = TARGET_EREMOTEIO,
341
    [ESHUTDOWN]                = TARGET_ESHUTDOWN,
342
    [ETOOMANYREFS]        = TARGET_ETOOMANYREFS,
343
    [ETIMEDOUT]                = TARGET_ETIMEDOUT,
344
    [ECONNREFUSED]        = TARGET_ECONNREFUSED,
345
    [EHOSTDOWN]                = TARGET_EHOSTDOWN,
346
    [EHOSTUNREACH]        = TARGET_EHOSTUNREACH,
347
    [EALREADY]                = TARGET_EALREADY,
348
    [EINPROGRESS]        = TARGET_EINPROGRESS,
349
    [ESTALE]                = TARGET_ESTALE,
350
    [ECANCELED]                = TARGET_ECANCELED,
351
    [ENOMEDIUM]                = TARGET_ENOMEDIUM,
352
    [EMEDIUMTYPE]        = TARGET_EMEDIUMTYPE,
353
#ifdef ENOKEY
354
    [ENOKEY]                = TARGET_ENOKEY,
355
#endif
356
#ifdef EKEYEXPIRED
357
    [EKEYEXPIRED]        = TARGET_EKEYEXPIRED,
358
#endif
359
#ifdef EKEYREVOKED
360
    [EKEYREVOKED]        = TARGET_EKEYREVOKED,
361
#endif
362
#ifdef EKEYREJECTED
363
    [EKEYREJECTED]        = TARGET_EKEYREJECTED,
364
#endif
365
#ifdef EOWNERDEAD
366
    [EOWNERDEAD]        = TARGET_EOWNERDEAD,
367
#endif
368
#ifdef ENOTRECOVERABLE
369
    [ENOTRECOVERABLE]        = TARGET_ENOTRECOVERABLE,
370
#endif
371
};
372

    
373
static inline int host_to_target_errno(int err)
374
{
375
    if(host_to_target_errno_table[err])
376
        return host_to_target_errno_table[err];
377
    return err;
378
}
379

    
380
static inline int target_to_host_errno(int err)
381
{
382
    if (target_to_host_errno_table[err])
383
        return target_to_host_errno_table[err];
384
    return err;
385
}
386

    
387
static inline abi_long get_errno(abi_long ret)
388
{
389
    if (ret == -1)
390
        return -host_to_target_errno(errno);
391
    else
392
        return ret;
393
}
394

    
395
static inline int is_error(abi_long ret)
396
{
397
    return (abi_ulong)ret >= (abi_ulong)(-4096);
398
}
399

    
400
char *target_strerror(int err)
401
{
402
    return strerror(target_to_host_errno(err));
403
}
404

    
405
static abi_ulong target_brk;
406
static abi_ulong target_original_brk;
407

    
408
void target_set_brk(abi_ulong new_brk)
409
{
410
    target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
411
}
412

    
413
/* do_brk() must return target values and target errnos. */
414
abi_long do_brk(abi_ulong new_brk)
415
{
416
    abi_ulong brk_page;
417
    abi_long mapped_addr;
418
    int        new_alloc_size;
419

    
420
    if (!new_brk)
421
        return target_brk;
422
    if (new_brk < target_original_brk)
423
        return -TARGET_ENOMEM;
424

    
425
    brk_page = HOST_PAGE_ALIGN(target_brk);
426

    
427
    /* If the new brk is less than this, set it and we're done... */
428
    if (new_brk < brk_page) {
429
        target_brk = new_brk;
430
            return target_brk;
431
    }
432

    
433
    /* We need to allocate more memory after the brk... */
434
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
435
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
436
                                        PROT_READ|PROT_WRITE,
437
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
438
    if (is_error(mapped_addr)) {
439
        return mapped_addr;
440
    } else {
441
        target_brk = new_brk;
442
            return target_brk;
443
    }
444
}
445

    
446
static inline abi_long copy_from_user_fdset(fd_set *fds,
447
                                            abi_ulong target_fds_addr,
448
                                            int n)
449
{
450
    int i, nw, j, k;
451
    abi_ulong b, *target_fds;
452

    
453
    nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
454
    if (!(target_fds = lock_user(VERIFY_READ,
455
                                 target_fds_addr,
456
                                 sizeof(abi_ulong) * nw,
457
                                 1)))
458
        return -TARGET_EFAULT;
459

    
460
    FD_ZERO(fds);
461
    k = 0;
462
    for (i = 0; i < nw; i++) {
463
        /* grab the abi_ulong */
464
        __get_user(b, &target_fds[i]);
465
        for (j = 0; j < TARGET_ABI_BITS; j++) {
466
            /* check the bit inside the abi_ulong */
467
            if ((b >> j) & 1)
468
                FD_SET(k, fds);
469
            k++;
470
        }
471
    }
472

    
473
    unlock_user(target_fds, target_fds_addr, 0);
474

    
475
    return 0;
476
}
477

    
478
static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
479
                                          const fd_set *fds,
480
                                          int n)
481
{
482
    int i, nw, j, k;
483
    abi_long v;
484
    abi_ulong *target_fds;
485

    
486
    nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
487
    if (!(target_fds = lock_user(VERIFY_WRITE,
488
                                 target_fds_addr,
489
                                 sizeof(abi_ulong) * nw,
490
                                 0)))
491
        return -TARGET_EFAULT;
492

    
493
    k = 0;
494
    for (i = 0; i < nw; i++) {
495
        v = 0;
496
        for (j = 0; j < TARGET_ABI_BITS; j++) {
497
            v |= ((FD_ISSET(k, fds) != 0) << j);
498
            k++;
499
        }
500
        __put_user(v, &target_fds[i]);
501
    }
502

    
503
    unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
504

    
505
    return 0;
506
}
507

    
508
#if defined(__alpha__)
509
#define HOST_HZ 1024
510
#else
511
#define HOST_HZ 100
512
#endif
513

    
514
static inline abi_long host_to_target_clock_t(long ticks)
515
{
516
#if HOST_HZ == TARGET_HZ
517
    return ticks;
518
#else
519
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
520
#endif
521
}
522

    
523
static inline abi_long host_to_target_rusage(abi_ulong target_addr,
524
                                             const struct rusage *rusage)
525
{
526
    struct target_rusage *target_rusage;
527

    
528
    if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
529
        return -TARGET_EFAULT;
530
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
531
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
532
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
533
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
534
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
535
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
536
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
537
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
538
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
539
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
540
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
541
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
542
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
543
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
544
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
545
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
546
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
547
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
548
    unlock_user_struct(target_rusage, target_addr, 1);
549

    
550
    return 0;
551
}
552

    
553
static inline abi_long copy_from_user_timeval(struct timeval *tv,
554
                                              abi_ulong target_tv_addr)
555
{
556
    struct target_timeval *target_tv;
557

    
558
    if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
559
        return -TARGET_EFAULT;
560

    
561
    __get_user(tv->tv_sec, &target_tv->tv_sec);
562
    __get_user(tv->tv_usec, &target_tv->tv_usec);
563

    
564
    unlock_user_struct(target_tv, target_tv_addr, 0);
565

    
566
    return 0;
567
}
568

    
569
static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
570
                                            const struct timeval *tv)
571
{
572
    struct target_timeval *target_tv;
573

    
574
    if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
575
        return -TARGET_EFAULT;
576

    
577
    __put_user(tv->tv_sec, &target_tv->tv_sec);
578
    __put_user(tv->tv_usec, &target_tv->tv_usec);
579

    
580
    unlock_user_struct(target_tv, target_tv_addr, 1);
581

    
582
    return 0;
583
}
584

    
585

    
586
/* do_select() must return target values and target errnos. */
587
static abi_long do_select(int n,
588
                          abi_ulong rfd_addr, abi_ulong wfd_addr,
589
                          abi_ulong efd_addr, abi_ulong target_tv_addr)
590
{
591
    fd_set rfds, wfds, efds;
592
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
593
    struct timeval tv, *tv_ptr;
594
    abi_long ret;
595

    
596
    if (rfd_addr) {
597
        if (copy_from_user_fdset(&rfds, rfd_addr, n))
598
            return -TARGET_EFAULT;
599
        rfds_ptr = &rfds;
600
    } else {
601
        rfds_ptr = NULL;
602
    }
603
    if (wfd_addr) {
604
        if (copy_from_user_fdset(&wfds, wfd_addr, n))
605
            return -TARGET_EFAULT;
606
        wfds_ptr = &wfds;
607
    } else {
608
        wfds_ptr = NULL;
609
    }
610
    if (efd_addr) {
611
        if (copy_from_user_fdset(&efds, efd_addr, n))
612
            return -TARGET_EFAULT;
613
        efds_ptr = &efds;
614
    } else {
615
        efds_ptr = NULL;
616
    }
617

    
618
    if (target_tv_addr) {
619
        if (copy_from_user_timeval(&tv, target_tv_addr))
620
            return -TARGET_EFAULT;
621
        tv_ptr = &tv;
622
    } else {
623
        tv_ptr = NULL;
624
    }
625

    
626
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
627

    
628
    if (!is_error(ret)) {
629
        if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
630
            return -TARGET_EFAULT;
631
        if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
632
            return -TARGET_EFAULT;
633
        if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
634
            return -TARGET_EFAULT;
635

    
636
        if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
637
            return -TARGET_EFAULT;
638
    }
639

    
640
    return ret;
641
}
642

    
643
static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
644
                                               abi_ulong target_addr,
645
                                               socklen_t len)
646
{
647
    struct target_sockaddr *target_saddr;
648

    
649
    target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
650
    if (!target_saddr)
651
        return -TARGET_EFAULT;
652
    memcpy(addr, target_saddr, len);
653
    addr->sa_family = tswap16(target_saddr->sa_family);
654
    unlock_user(target_saddr, target_addr, 0);
655

    
656
    return 0;
657
}
658

    
659
static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
660
                                               struct sockaddr *addr,
661
                                               socklen_t len)
662
{
663
    struct target_sockaddr *target_saddr;
664

    
665
    target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
666
    if (!target_saddr)
667
        return -TARGET_EFAULT;
668
    memcpy(target_saddr, addr, len);
669
    target_saddr->sa_family = tswap16(addr->sa_family);
670
    unlock_user(target_saddr, target_addr, len);
671

    
672
    return 0;
673
}
674

    
675
/* ??? Should this also swap msgh->name?  */
676
static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
677
                                           struct target_msghdr *target_msgh)
678
{
679
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
680
    abi_long msg_controllen;
681
    abi_ulong target_cmsg_addr;
682
    struct target_cmsghdr *target_cmsg;
683
    socklen_t space = 0;
684
    
685
    msg_controllen = tswapl(target_msgh->msg_controllen);
686
    if (msg_controllen < sizeof (struct target_cmsghdr)) 
687
        goto the_end;
688
    target_cmsg_addr = tswapl(target_msgh->msg_control);
689
    target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
690
    if (!target_cmsg)
691
        return -TARGET_EFAULT;
692

    
693
    while (cmsg && target_cmsg) {
694
        void *data = CMSG_DATA(cmsg);
695
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
696

    
697
        int len = tswapl(target_cmsg->cmsg_len)
698
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
699

    
700
        space += CMSG_SPACE(len);
701
        if (space > msgh->msg_controllen) {
702
            space -= CMSG_SPACE(len);
703
            gemu_log("Host cmsg overflow\n");
704
            break;
705
        }
706

    
707
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
708
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
709
        cmsg->cmsg_len = CMSG_LEN(len);
710

    
711
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
712
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
713
            memcpy(data, target_data, len);
714
        } else {
715
            int *fd = (int *)data;
716
            int *target_fd = (int *)target_data;
717
            int i, numfds = len / sizeof(int);
718

    
719
            for (i = 0; i < numfds; i++)
720
                fd[i] = tswap32(target_fd[i]);
721
        }
722

    
723
        cmsg = CMSG_NXTHDR(msgh, cmsg);
724
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
725
    }
726
    unlock_user(target_cmsg, target_cmsg_addr, 0);
727
 the_end:
728
    msgh->msg_controllen = space;
729
    return 0;
730
}
731

    
732
/* ??? Should this also swap msgh->name?  */
733
static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
734
                                           struct msghdr *msgh)
735
{
736
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
737
    abi_long msg_controllen;
738
    abi_ulong target_cmsg_addr;
739
    struct target_cmsghdr *target_cmsg;
740
    socklen_t space = 0;
741

    
742
    msg_controllen = tswapl(target_msgh->msg_controllen);
743
    if (msg_controllen < sizeof (struct target_cmsghdr)) 
744
        goto the_end;
745
    target_cmsg_addr = tswapl(target_msgh->msg_control);
746
    target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
747
    if (!target_cmsg)
748
        return -TARGET_EFAULT;
749

    
750
    while (cmsg && target_cmsg) {
751
        void *data = CMSG_DATA(cmsg);
752
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
753

    
754
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
755

    
756
        space += TARGET_CMSG_SPACE(len);
757
        if (space > msg_controllen) {
758
            space -= TARGET_CMSG_SPACE(len);
759
            gemu_log("Target cmsg overflow\n");
760
            break;
761
        }
762

    
763
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
764
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
765
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
766

    
767
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
768
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
769
            memcpy(target_data, data, len);
770
        } else {
771
            int *fd = (int *)data;
772
            int *target_fd = (int *)target_data;
773
            int i, numfds = len / sizeof(int);
774

    
775
            for (i = 0; i < numfds; i++)
776
                target_fd[i] = tswap32(fd[i]);
777
        }
778

    
779
        cmsg = CMSG_NXTHDR(msgh, cmsg);
780
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
781
    }
782
    unlock_user(target_cmsg, target_cmsg_addr, space);
783
 the_end:
784
    target_msgh->msg_controllen = tswapl(space);
785
    return 0;
786
}
787

    
788
/* do_setsockopt() Must return target values and target errnos. */
789
static abi_long do_setsockopt(int sockfd, int level, int optname,
790
                              abi_ulong optval_addr, socklen_t optlen)
791
{
792
    abi_long ret;
793
    int val;
794

    
795
    switch(level) {
796
    case SOL_TCP:
797
        /* TCP options all take an 'int' value.  */
798
        if (optlen < sizeof(uint32_t))
799
            return -TARGET_EINVAL;
800

    
801
        if (get_user_u32(val, optval_addr))
802
            return -TARGET_EFAULT;
803
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
804
        break;
805
    case SOL_IP:
806
        switch(optname) {
807
        case IP_TOS:
808
        case IP_TTL:
809
        case IP_HDRINCL:
810
        case IP_ROUTER_ALERT:
811
        case IP_RECVOPTS:
812
        case IP_RETOPTS:
813
        case IP_PKTINFO:
814
        case IP_MTU_DISCOVER:
815
        case IP_RECVERR:
816
        case IP_RECVTOS:
817
#ifdef IP_FREEBIND
818
        case IP_FREEBIND:
819
#endif
820
        case IP_MULTICAST_TTL:
821
        case IP_MULTICAST_LOOP:
822
            val = 0;
823
            if (optlen >= sizeof(uint32_t)) {
824
                if (get_user_u32(val, optval_addr))
825
                    return -TARGET_EFAULT;
826
            } else if (optlen >= 1) {
827
                if (get_user_u8(val, optval_addr))
828
                    return -TARGET_EFAULT;
829
            }
830
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
831
            break;
832
        default:
833
            goto unimplemented;
834
        }
835
        break;
836
    case TARGET_SOL_SOCKET:
837
        switch (optname) {
838
            /* Options with 'int' argument.  */
839
        case TARGET_SO_DEBUG:
840
                optname = SO_DEBUG;
841
                break;
842
        case TARGET_SO_REUSEADDR:
843
                optname = SO_REUSEADDR;
844
                break;
845
        case TARGET_SO_TYPE:
846
                optname = SO_TYPE;
847
                break;
848
        case TARGET_SO_ERROR:
849
                optname = SO_ERROR;
850
                break;
851
        case TARGET_SO_DONTROUTE:
852
                optname = SO_DONTROUTE;
853
                break;
854
        case TARGET_SO_BROADCAST:
855
                optname = SO_BROADCAST;
856
                break;
857
        case TARGET_SO_SNDBUF:
858
                optname = SO_SNDBUF;
859
                break;
860
        case TARGET_SO_RCVBUF:
861
                optname = SO_RCVBUF;
862
                break;
863
        case TARGET_SO_KEEPALIVE:
864
                optname = SO_KEEPALIVE;
865
                break;
866
        case TARGET_SO_OOBINLINE:
867
                optname = SO_OOBINLINE;
868
                break;
869
        case TARGET_SO_NO_CHECK:
870
                optname = SO_NO_CHECK;
871
                break;
872
        case TARGET_SO_PRIORITY:
873
                optname = SO_PRIORITY;
874
                break;
875
#ifdef SO_BSDCOMPAT
876
        case TARGET_SO_BSDCOMPAT:
877
                optname = SO_BSDCOMPAT;
878
                break;
879
#endif
880
        case TARGET_SO_PASSCRED:
881
                optname = SO_PASSCRED;
882
                break;
883
        case TARGET_SO_TIMESTAMP:
884
                optname = SO_TIMESTAMP;
885
                break;
886
        case TARGET_SO_RCVLOWAT:
887
                optname = SO_RCVLOWAT;
888
                break;
889
        case TARGET_SO_RCVTIMEO:
890
                optname = SO_RCVTIMEO;
891
                break;
892
        case TARGET_SO_SNDTIMEO:
893
                optname = SO_SNDTIMEO;
894
                break;
895
            break;
896
        default:
897
            goto unimplemented;
898
        }
899
        if (optlen < sizeof(uint32_t))
900
            return -TARGET_EINVAL;
901

    
902
        if (get_user_u32(val, optval_addr))
903
            return -TARGET_EFAULT;
904
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
905
        break;
906
    default:
907
    unimplemented:
908
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
909
        ret = -TARGET_ENOPROTOOPT;
910
    }
911
    return ret;
912
}
913

    
914
/* do_getsockopt() Must return target values and target errnos. */
915
static abi_long do_getsockopt(int sockfd, int level, int optname,
916
                              abi_ulong optval_addr, abi_ulong optlen)
917
{
918
    abi_long ret;
919
    int len, lv, val;
920

    
921
    switch(level) {
922
    case TARGET_SOL_SOCKET:
923
            level = SOL_SOCKET;
924
        switch (optname) {
925
        case TARGET_SO_LINGER:
926
        case TARGET_SO_RCVTIMEO:
927
        case TARGET_SO_SNDTIMEO:
928
        case TARGET_SO_PEERCRED:
929
        case TARGET_SO_PEERNAME:
930
            /* These don't just return a single integer */
931
            goto unimplemented;
932
        default:
933
            goto int_case;
934
        }
935
        break;
936
    case SOL_TCP:
937
        /* TCP options all take an 'int' value.  */
938
    int_case:
939
        if (get_user_u32(len, optlen))
940
            return -TARGET_EFAULT;
941
        if (len < 0)
942
            return -TARGET_EINVAL;
943
        lv = sizeof(int);
944
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
945
        if (ret < 0)
946
            return ret;
947
        val = tswap32(val);
948
        if (len > lv)
949
            len = lv;
950
        if (len == 4) {
951
            if (put_user_u32(val, optval_addr))
952
                return -TARGET_EFAULT;
953
        } else {
954
            if (put_user_u8(val, optval_addr))
955
                return -TARGET_EFAULT;
956
        }
957
        if (put_user_u32(len, optlen))
958
            return -TARGET_EFAULT;
959
        break;
960
    case SOL_IP:
961
        switch(optname) {
962
        case IP_TOS:
963
        case IP_TTL:
964
        case IP_HDRINCL:
965
        case IP_ROUTER_ALERT:
966
        case IP_RECVOPTS:
967
        case IP_RETOPTS:
968
        case IP_PKTINFO:
969
        case IP_MTU_DISCOVER:
970
        case IP_RECVERR:
971
        case IP_RECVTOS:
972
#ifdef IP_FREEBIND
973
        case IP_FREEBIND:
974
#endif
975
        case IP_MULTICAST_TTL:
976
        case IP_MULTICAST_LOOP:
977
            if (get_user_u32(len, optlen))
978
                return -TARGET_EFAULT;
979
            if (len < 0)
980
                return -TARGET_EINVAL;
981
            lv = sizeof(int);
982
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
983
            if (ret < 0)
984
                return ret;
985
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
986
                len = 1;
987
                if (put_user_u32(len, optlen)
988
                    || put_user_u8(val, optval_addr))
989
                    return -TARGET_EFAULT;
990
            } else {
991
                if (len > sizeof(int))
992
                    len = sizeof(int);
993
                if (put_user_u32(len, optlen)
994
                    || put_user_u32(val, optval_addr))
995
                    return -TARGET_EFAULT;
996
            }
997
            break;
998
        default:
999
            ret = -TARGET_ENOPROTOOPT;
1000
            break;
1001
        }
1002
        break;
1003
    default:
1004
    unimplemented:
1005
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1006
                 level, optname);
1007
        ret = -TARGET_EOPNOTSUPP;
1008
        break;
1009
    }
1010
    return ret;
1011
}
1012

    
1013
/* FIXME
1014
 * lock_iovec()/unlock_iovec() have a return code of 0 for success where
1015
 * other lock functions have a return code of 0 for failure.
1016
 */
1017
static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
1018
                           int count, int copy)
1019
{
1020
    struct target_iovec *target_vec;
1021
    abi_ulong base;
1022
    int i, j;
1023

    
1024
    target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1025
    if (!target_vec)
1026
        return -TARGET_EFAULT;
1027
    for(i = 0;i < count; i++) {
1028
        base = tswapl(target_vec[i].iov_base);
1029
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
1030
        if (vec[i].iov_len != 0) {
1031
            vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
1032
            if (!vec[i].iov_base && vec[i].iov_len) 
1033
                goto fail;
1034
        } else {
1035
            /* zero length pointer is ignored */
1036
            vec[i].iov_base = NULL;
1037
        }
1038
    }
1039
    unlock_user (target_vec, target_addr, 0);
1040
    return 0;
1041
 fail:
1042
    /* failure - unwind locks */
1043
    for (j = 0; j < i; j++) {
1044
        base = tswapl(target_vec[j].iov_base);
1045
        unlock_user(vec[j].iov_base, base, 0);
1046
    }
1047
    unlock_user (target_vec, target_addr, 0);
1048
    return -TARGET_EFAULT;
1049
}
1050

    
1051
static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1052
                             int count, int copy)
1053
{
1054
    struct target_iovec *target_vec;
1055
    abi_ulong base;
1056
    int i;
1057

    
1058
    target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
1059
    if (!target_vec)
1060
        return -TARGET_EFAULT;
1061
    for(i = 0;i < count; i++) {
1062
        base = tswapl(target_vec[i].iov_base);
1063
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1064
    }
1065
    unlock_user (target_vec, target_addr, 0);
1066

    
1067
    return 0;
1068
}
1069

    
1070
/* do_socket() Must return target values and target errnos. */
1071
static abi_long do_socket(int domain, int type, int protocol)
1072
{
1073
#if defined(TARGET_MIPS)
1074
    switch(type) {
1075
    case TARGET_SOCK_DGRAM:
1076
        type = SOCK_DGRAM;
1077
        break;
1078
    case TARGET_SOCK_STREAM:
1079
        type = SOCK_STREAM;
1080
        break;
1081
    case TARGET_SOCK_RAW:
1082
        type = SOCK_RAW;
1083
        break;
1084
    case TARGET_SOCK_RDM:
1085
        type = SOCK_RDM;
1086
        break;
1087
    case TARGET_SOCK_SEQPACKET:
1088
        type = SOCK_SEQPACKET;
1089
        break;
1090
    case TARGET_SOCK_PACKET:
1091
        type = SOCK_PACKET;
1092
        break;
1093
    }
1094
#endif
1095
    if (domain == PF_NETLINK)
1096
        return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1097
    return get_errno(socket(domain, type, protocol));
1098
}
1099

    
1100
/* do_bind() Must return target values and target errnos. */
1101
static abi_long do_bind(int sockfd, abi_ulong target_addr,
1102
                        socklen_t addrlen)
1103
{
1104
    void *addr = alloca(addrlen);
1105

    
1106
    target_to_host_sockaddr(addr, target_addr, addrlen);
1107
    return get_errno(bind(sockfd, addr, addrlen));
1108
}
1109

    
1110
/* do_connect() Must return target values and target errnos. */
1111
static abi_long do_connect(int sockfd, abi_ulong target_addr,
1112
                           socklen_t addrlen)
1113
{
1114
    void *addr = alloca(addrlen);
1115

    
1116
    target_to_host_sockaddr(addr, target_addr, addrlen);
1117
    return get_errno(connect(sockfd, addr, addrlen));
1118
}
1119

    
1120
/* do_sendrecvmsg() Must return target values and target errnos. */
1121
static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1122
                               int flags, int send)
1123
{
1124
    abi_long ret;
1125
    struct target_msghdr *msgp;
1126
    struct msghdr msg;
1127
    int count;
1128
    struct iovec *vec;
1129
    abi_ulong target_vec;
1130

    
1131
    /* FIXME */
1132
    if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1133
                          msgp,
1134
                          target_msg,
1135
                          send ? 1 : 0))
1136
        return -TARGET_EFAULT;
1137
    if (msgp->msg_name) {
1138
        msg.msg_namelen = tswap32(msgp->msg_namelen);
1139
        msg.msg_name = alloca(msg.msg_namelen);
1140
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
1141
                                msg.msg_namelen);
1142
    } else {
1143
        msg.msg_name = NULL;
1144
        msg.msg_namelen = 0;
1145
    }
1146
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
1147
    msg.msg_control = alloca(msg.msg_controllen);
1148
    msg.msg_flags = tswap32(msgp->msg_flags);
1149

    
1150
    count = tswapl(msgp->msg_iovlen);
1151
    vec = alloca(count * sizeof(struct iovec));
1152
    target_vec = tswapl(msgp->msg_iov);
1153
    lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
1154
    msg.msg_iovlen = count;
1155
    msg.msg_iov = vec;
1156

    
1157
    if (send) {
1158
        ret = target_to_host_cmsg(&msg, msgp);
1159
        if (ret == 0)
1160
            ret = get_errno(sendmsg(fd, &msg, flags));
1161
    } else {
1162
        ret = get_errno(recvmsg(fd, &msg, flags));
1163
        if (!is_error(ret))
1164
            ret = host_to_target_cmsg(msgp, &msg);
1165
    }
1166
    unlock_iovec(vec, target_vec, count, !send);
1167
    unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1168
    return ret;
1169
}
1170

    
1171
/* do_accept() Must return target values and target errnos. */
1172
static abi_long do_accept(int fd, abi_ulong target_addr,
1173
                          abi_ulong target_addrlen_addr)
1174
{
1175
    socklen_t addrlen;
1176
    void *addr;
1177
    abi_long ret;
1178

    
1179
    if (get_user_u32(addrlen, target_addrlen_addr))
1180
        return -TARGET_EFAULT;
1181

    
1182
    addr = alloca(addrlen);
1183

    
1184
    ret = get_errno(accept(fd, addr, &addrlen));
1185
    if (!is_error(ret)) {
1186
        host_to_target_sockaddr(target_addr, addr, addrlen);
1187
        if (put_user_u32(addrlen, target_addrlen_addr))
1188
            ret = -TARGET_EFAULT;
1189
    }
1190
    return ret;
1191
}
1192

    
1193
/* do_getpeername() Must return target values and target errnos. */
1194
static abi_long do_getpeername(int fd, abi_ulong target_addr,
1195
                               abi_ulong target_addrlen_addr)
1196
{
1197
    socklen_t addrlen;
1198
    void *addr;
1199
    abi_long ret;
1200

    
1201
    if (get_user_u32(addrlen, target_addrlen_addr))
1202
        return -TARGET_EFAULT;
1203

    
1204
    addr = alloca(addrlen);
1205

    
1206
    ret = get_errno(getpeername(fd, addr, &addrlen));
1207
    if (!is_error(ret)) {
1208
        host_to_target_sockaddr(target_addr, addr, addrlen);
1209
        if (put_user_u32(addrlen, target_addrlen_addr))
1210
            ret = -TARGET_EFAULT;
1211
    }
1212
    return ret;
1213
}
1214

    
1215
/* do_getsockname() Must return target values and target errnos. */
1216
static abi_long do_getsockname(int fd, abi_ulong target_addr,
1217
                               abi_ulong target_addrlen_addr)
1218
{
1219
    socklen_t addrlen;
1220
    void *addr;
1221
    abi_long ret;
1222

    
1223
    if (get_user_u32(addrlen, target_addrlen_addr))
1224
        return -TARGET_EFAULT;
1225

    
1226
    addr = alloca(addrlen);
1227

    
1228
    ret = get_errno(getsockname(fd, addr, &addrlen));
1229
    if (!is_error(ret)) {
1230
        host_to_target_sockaddr(target_addr, addr, addrlen);
1231
        if (put_user_u32(addrlen, target_addrlen_addr))
1232
            ret = -TARGET_EFAULT;
1233
    }
1234
    return ret;
1235
}
1236

    
1237
/* do_socketpair() Must return target values and target errnos. */
1238
static abi_long do_socketpair(int domain, int type, int protocol,
1239
                              abi_ulong target_tab_addr)
1240
{
1241
    int tab[2];
1242
    abi_long ret;
1243

    
1244
    ret = get_errno(socketpair(domain, type, protocol, tab));
1245
    if (!is_error(ret)) {
1246
        if (put_user_s32(tab[0], target_tab_addr)
1247
            || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1248
            ret = -TARGET_EFAULT;
1249
    }
1250
    return ret;
1251
}
1252

    
1253
/* do_sendto() Must return target values and target errnos. */
1254
static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1255
                          abi_ulong target_addr, socklen_t addrlen)
1256
{
1257
    void *addr;
1258
    void *host_msg;
1259
    abi_long ret;
1260

    
1261
    host_msg = lock_user(VERIFY_READ, msg, len, 1);
1262
    if (!host_msg)
1263
        return -TARGET_EFAULT;
1264
    if (target_addr) {
1265
        addr = alloca(addrlen);
1266
        target_to_host_sockaddr(addr, target_addr, addrlen);
1267
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1268
    } else {
1269
        ret = get_errno(send(fd, host_msg, len, flags));
1270
    }
1271
    unlock_user(host_msg, msg, 0);
1272
    return ret;
1273
}
1274

    
1275
/* do_recvfrom() Must return target values and target errnos. */
1276
static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
1277
                            abi_ulong target_addr,
1278
                            abi_ulong target_addrlen)
1279
{
1280
    socklen_t addrlen;
1281
    void *addr;
1282
    void *host_msg;
1283
    abi_long ret;
1284

    
1285
    host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
1286
    if (!host_msg)
1287
        return -TARGET_EFAULT;
1288
    if (target_addr) {
1289
        if (get_user_u32(addrlen, target_addrlen)) {
1290
            ret = -TARGET_EFAULT;
1291
            goto fail;
1292
        }
1293
        addr = alloca(addrlen);
1294
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1295
    } else {
1296
        addr = NULL; /* To keep compiler quiet.  */
1297
        ret = get_errno(recv(fd, host_msg, len, flags));
1298
    }
1299
    if (!is_error(ret)) {
1300
        if (target_addr) {
1301
            host_to_target_sockaddr(target_addr, addr, addrlen);
1302
            if (put_user_u32(addrlen, target_addrlen)) {
1303
                ret = -TARGET_EFAULT;
1304
                goto fail;
1305
            }
1306
        }
1307
        unlock_user(host_msg, msg, len);
1308
    } else {
1309
fail:
1310
        unlock_user(host_msg, msg, 0);
1311
    }
1312
    return ret;
1313
}
1314

    
1315
#ifdef TARGET_NR_socketcall
1316
/* do_socketcall() Must return target values and target errnos. */
1317
static abi_long do_socketcall(int num, abi_ulong vptr)
1318
{
1319
    abi_long ret;
1320
    const int n = sizeof(abi_ulong);
1321

    
1322
    switch(num) {
1323
    case SOCKOP_socket:
1324
        {
1325
            int domain, type, protocol;
1326

    
1327
            if (get_user_s32(domain, vptr)
1328
                || get_user_s32(type, vptr + n)
1329
                || get_user_s32(protocol, vptr + 2 * n))
1330
                return -TARGET_EFAULT;
1331

    
1332
            ret = do_socket(domain, type, protocol);
1333
        }
1334
        break;
1335
    case SOCKOP_bind:
1336
        {
1337
            int sockfd;
1338
            abi_ulong target_addr;
1339
            socklen_t addrlen;
1340

    
1341
            if (get_user_s32(sockfd, vptr)
1342
                || get_user_ual(target_addr, vptr + n)
1343
                || get_user_u32(addrlen, vptr + 2 * n))
1344
                return -TARGET_EFAULT;
1345

    
1346
            ret = do_bind(sockfd, target_addr, addrlen);
1347
        }
1348
        break;
1349
    case SOCKOP_connect:
1350
        {
1351
            int sockfd;
1352
            abi_ulong target_addr;
1353
            socklen_t addrlen;
1354

    
1355
            if (get_user_s32(sockfd, vptr)
1356
                || get_user_ual(target_addr, vptr + n)
1357
                || get_user_u32(addrlen, vptr + 2 * n))
1358
                return -TARGET_EFAULT;
1359

    
1360
            ret = do_connect(sockfd, target_addr, addrlen);
1361
        }
1362
        break;
1363
    case SOCKOP_listen:
1364
        {
1365
            int sockfd, backlog;
1366

    
1367
            if (get_user_s32(sockfd, vptr)
1368
                || get_user_s32(backlog, vptr + n))
1369
                return -TARGET_EFAULT;
1370

    
1371
            ret = get_errno(listen(sockfd, backlog));
1372
        }
1373
        break;
1374
    case SOCKOP_accept:
1375
        {
1376
            int sockfd;
1377
            abi_ulong target_addr, target_addrlen;
1378

    
1379
            if (get_user_s32(sockfd, vptr)
1380
                || get_user_ual(target_addr, vptr + n)
1381
                || get_user_u32(target_addrlen, vptr + 2 * n))
1382
                return -TARGET_EFAULT;
1383

    
1384
            ret = do_accept(sockfd, target_addr, target_addrlen);
1385
        }
1386
        break;
1387
    case SOCKOP_getsockname:
1388
        {
1389
            int sockfd;
1390
            abi_ulong target_addr, target_addrlen;
1391

    
1392
            if (get_user_s32(sockfd, vptr)
1393
                || get_user_ual(target_addr, vptr + n)
1394
                || get_user_u32(target_addrlen, vptr + 2 * n))
1395
                return -TARGET_EFAULT;
1396

    
1397
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
1398
        }
1399
        break;
1400
    case SOCKOP_getpeername:
1401
        {
1402
            int sockfd;
1403
            abi_ulong target_addr, target_addrlen;
1404

    
1405
            if (get_user_s32(sockfd, vptr)
1406
                || get_user_ual(target_addr, vptr + n)
1407
                || get_user_u32(target_addrlen, vptr + 2 * n))
1408
                return -TARGET_EFAULT;
1409

    
1410
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1411
        }
1412
        break;
1413
    case SOCKOP_socketpair:
1414
        {
1415
            int domain, type, protocol;
1416
            abi_ulong tab;
1417

    
1418
            if (get_user_s32(domain, vptr)
1419
                || get_user_s32(type, vptr + n)
1420
                || get_user_s32(protocol, vptr + 2 * n)
1421
                || get_user_ual(tab, vptr + 3 * n))
1422
                return -TARGET_EFAULT;
1423

    
1424
            ret = do_socketpair(domain, type, protocol, tab);
1425
        }
1426
        break;
1427
    case SOCKOP_send:
1428
        {
1429
            int sockfd;
1430
            abi_ulong msg;
1431
            size_t len;
1432
            int flags;
1433

    
1434
            if (get_user_s32(sockfd, vptr)
1435
                || get_user_ual(msg, vptr + n)
1436
                || get_user_ual(len, vptr + 2 * n)
1437
                || get_user_s32(flags, vptr + 3 * n))
1438
                return -TARGET_EFAULT;
1439

    
1440
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1441
        }
1442
        break;
1443
    case SOCKOP_recv:
1444
        {
1445
            int sockfd;
1446
            abi_ulong msg;
1447
            size_t len;
1448
            int flags;
1449

    
1450
            if (get_user_s32(sockfd, vptr)
1451
                || get_user_ual(msg, vptr + n)
1452
                || get_user_ual(len, vptr + 2 * n)
1453
                || get_user_s32(flags, vptr + 3 * n))
1454
                return -TARGET_EFAULT;
1455

    
1456
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1457
        }
1458
        break;
1459
    case SOCKOP_sendto:
1460
        {
1461
            int sockfd;
1462
            abi_ulong msg;
1463
            size_t len;
1464
            int flags;
1465
            abi_ulong addr;
1466
            socklen_t addrlen;
1467

    
1468
            if (get_user_s32(sockfd, vptr)
1469
                || get_user_ual(msg, vptr + n)
1470
                || get_user_ual(len, vptr + 2 * n)
1471
                || get_user_s32(flags, vptr + 3 * n)
1472
                || get_user_ual(addr, vptr + 4 * n)
1473
                || get_user_u32(addrlen, vptr + 5 * n))
1474
                return -TARGET_EFAULT;
1475

    
1476
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1477
        }
1478
        break;
1479
    case SOCKOP_recvfrom:
1480
        {
1481
            int sockfd;
1482
            abi_ulong msg;
1483
            size_t len;
1484
            int flags;
1485
            abi_ulong addr;
1486
            socklen_t addrlen;
1487

    
1488
            if (get_user_s32(sockfd, vptr)
1489
                || get_user_ual(msg, vptr + n)
1490
                || get_user_ual(len, vptr + 2 * n)
1491
                || get_user_s32(flags, vptr + 3 * n)
1492
                || get_user_ual(addr, vptr + 4 * n)
1493
                || get_user_u32(addrlen, vptr + 5 * n))
1494
                return -TARGET_EFAULT;
1495

    
1496
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1497
        }
1498
        break;
1499
    case SOCKOP_shutdown:
1500
        {
1501
            int sockfd, how;
1502

    
1503
            if (get_user_s32(sockfd, vptr)
1504
                || get_user_s32(how, vptr + n))
1505
                return -TARGET_EFAULT;
1506

    
1507
            ret = get_errno(shutdown(sockfd, how));
1508
        }
1509
        break;
1510
    case SOCKOP_sendmsg:
1511
    case SOCKOP_recvmsg:
1512
        {
1513
            int fd;
1514
            abi_ulong target_msg;
1515
            int flags;
1516

    
1517
            if (get_user_s32(fd, vptr)
1518
                || get_user_ual(target_msg, vptr + n)
1519
                || get_user_s32(flags, vptr + 2 * n))
1520
                return -TARGET_EFAULT;
1521

    
1522
            ret = do_sendrecvmsg(fd, target_msg, flags,
1523
                                 (num == SOCKOP_sendmsg));
1524
        }
1525
        break;
1526
    case SOCKOP_setsockopt:
1527
        {
1528
            int sockfd;
1529
            int level;
1530
            int optname;
1531
            abi_ulong optval;
1532
            socklen_t optlen;
1533

    
1534
            if (get_user_s32(sockfd, vptr)
1535
                || get_user_s32(level, vptr + n)
1536
                || get_user_s32(optname, vptr + 2 * n)
1537
                || get_user_ual(optval, vptr + 3 * n)
1538
                || get_user_u32(optlen, vptr + 4 * n))
1539
                return -TARGET_EFAULT;
1540

    
1541
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1542
        }
1543
        break;
1544
    case SOCKOP_getsockopt:
1545
        {
1546
            int sockfd;
1547
            int level;
1548
            int optname;
1549
            abi_ulong optval;
1550
            socklen_t optlen;
1551

    
1552
            if (get_user_s32(sockfd, vptr)
1553
                || get_user_s32(level, vptr + n)
1554
                || get_user_s32(optname, vptr + 2 * n)
1555
                || get_user_ual(optval, vptr + 3 * n)
1556
                || get_user_u32(optlen, vptr + 4 * n))
1557
                return -TARGET_EFAULT;
1558

    
1559
            ret = do_getsockopt(sockfd, level, optname, optval, optlen);
1560
        }
1561
        break;
1562
    default:
1563
        gemu_log("Unsupported socketcall: %d\n", num);
1564
        ret = -TARGET_ENOSYS;
1565
        break;
1566
    }
1567
    return ret;
1568
}
1569
#endif
1570

    
1571
#ifdef TARGET_NR_ipc
1572
#define N_SHM_REGIONS        32
1573

    
1574
static struct shm_region {
1575
    abi_ulong        start;
1576
    abi_ulong        size;
1577
} shm_regions[N_SHM_REGIONS];
1578

    
1579
struct target_ipc_perm
1580
{
1581
    abi_long __key;
1582
    abi_ulong uid;
1583
    abi_ulong gid;
1584
    abi_ulong cuid;
1585
    abi_ulong cgid;
1586
    unsigned short int mode;
1587
    unsigned short int __pad1;
1588
    unsigned short int __seq;
1589
    unsigned short int __pad2;
1590
    abi_ulong __unused1;
1591
    abi_ulong __unused2;
1592
};
1593

    
1594
struct target_semid_ds
1595
{
1596
  struct target_ipc_perm sem_perm;
1597
  abi_ulong sem_otime;
1598
  abi_ulong __unused1;
1599
  abi_ulong sem_ctime;
1600
  abi_ulong __unused2;
1601
  abi_ulong sem_nsems;
1602
  abi_ulong __unused3;
1603
  abi_ulong __unused4;
1604
};
1605

    
1606
static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
1607
                                               abi_ulong target_addr)
1608
{
1609
    struct target_ipc_perm *target_ip;
1610
    struct target_semid_ds *target_sd;
1611

    
1612
    if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
1613
        return -TARGET_EFAULT;
1614
    target_ip=&(target_sd->sem_perm);
1615
    host_ip->__key = tswapl(target_ip->__key);
1616
    host_ip->uid = tswapl(target_ip->uid);
1617
    host_ip->gid = tswapl(target_ip->gid);
1618
    host_ip->cuid = tswapl(target_ip->cuid);
1619
    host_ip->cgid = tswapl(target_ip->cgid);
1620
    host_ip->mode = tswapl(target_ip->mode);
1621
    unlock_user_struct(target_sd, target_addr, 0);
1622
    return 0;
1623
}
1624

    
1625
static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
1626
                                               struct ipc_perm *host_ip)
1627
{
1628
    struct target_ipc_perm *target_ip;
1629
    struct target_semid_ds *target_sd;
1630

    
1631
    if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
1632
        return -TARGET_EFAULT;
1633
    target_ip = &(target_sd->sem_perm);
1634
    target_ip->__key = tswapl(host_ip->__key);
1635
    target_ip->uid = tswapl(host_ip->uid);
1636
    target_ip->gid = tswapl(host_ip->gid);
1637
    target_ip->cuid = tswapl(host_ip->cuid);
1638
    target_ip->cgid = tswapl(host_ip->cgid);
1639
    target_ip->mode = tswapl(host_ip->mode);
1640
    unlock_user_struct(target_sd, target_addr, 1);
1641
    return 0;
1642
}
1643

    
1644
static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
1645
                                               abi_ulong target_addr)
1646
{
1647
    struct target_semid_ds *target_sd;
1648

    
1649
    if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
1650
        return -TARGET_EFAULT;
1651
    target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
1652
    host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
1653
    host_sd->sem_otime = tswapl(target_sd->sem_otime);
1654
    host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
1655
    unlock_user_struct(target_sd, target_addr, 0);
1656
    return 0;
1657
}
1658

    
1659
static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
1660
                                               struct semid_ds *host_sd)
1661
{
1662
    struct target_semid_ds *target_sd;
1663

    
1664
    if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
1665
        return -TARGET_EFAULT;
1666
    host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
1667
    target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
1668
    target_sd->sem_otime = tswapl(host_sd->sem_otime);
1669
    target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
1670
    unlock_user_struct(target_sd, target_addr, 1);
1671
    return 0;
1672
}
1673

    
1674
union semun {
1675
        int val;
1676
        struct semid_ds *buf;
1677
        unsigned short *array;
1678
};
1679

    
1680
union target_semun {
1681
        int val;
1682
        abi_long buf;
1683
        unsigned short int *array;
1684
};
1685

    
1686
static inline abi_long target_to_host_semun(int cmd,
1687
                                            union semun *host_su,
1688
                                            abi_ulong target_addr,
1689
                                            struct semid_ds *ds)
1690
{
1691
    union target_semun *target_su;
1692

    
1693
    switch( cmd ) {
1694
        case IPC_STAT:
1695
        case IPC_SET:
1696
           if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
1697
               return -TARGET_EFAULT;
1698
           target_to_host_semid_ds(ds,target_su->buf);
1699
           host_su->buf = ds;
1700
           unlock_user_struct(target_su, target_addr, 0);
1701
           break;
1702
        case GETVAL:
1703
        case SETVAL:
1704
           if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
1705
               return -TARGET_EFAULT;
1706
           host_su->val = tswapl(target_su->val);
1707
           unlock_user_struct(target_su, target_addr, 0);
1708
           break;
1709
        case GETALL:
1710
        case SETALL:
1711
           if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
1712
               return -TARGET_EFAULT;
1713
           *host_su->array = tswap16(*target_su->array);
1714
           unlock_user_struct(target_su, target_addr, 0);
1715
           break;
1716
        default:
1717
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1718
    }
1719
    return 0;
1720
}
1721

    
1722
static inline abi_long host_to_target_semun(int cmd,
1723
                                            abi_ulong target_addr,
1724
                                            union semun *host_su,
1725
                                            struct semid_ds *ds)
1726
{
1727
    union target_semun *target_su;
1728

    
1729
    switch( cmd ) {
1730
        case IPC_STAT:
1731
        case IPC_SET:
1732
           if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
1733
               return -TARGET_EFAULT;
1734
           host_to_target_semid_ds(target_su->buf,ds);
1735
           unlock_user_struct(target_su, target_addr, 1);
1736
           break;
1737
        case GETVAL:
1738
        case SETVAL:
1739
           if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
1740
               return -TARGET_EFAULT;
1741
           target_su->val = tswapl(host_su->val);
1742
           unlock_user_struct(target_su, target_addr, 1);
1743
           break;
1744
        case GETALL:
1745
        case SETALL:
1746
           if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
1747
               return -TARGET_EFAULT;
1748
           *target_su->array = tswap16(*host_su->array);
1749
           unlock_user_struct(target_su, target_addr, 1);
1750
           break;
1751
        default:
1752
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1753
    }
1754
    return 0;
1755
}
1756

    
1757
static inline abi_long do_semctl(int first, int second, int third,
1758
                                 abi_long ptr)
1759
{
1760
    union semun arg;
1761
    struct semid_ds dsarg;
1762
    int cmd = third&0xff;
1763
    abi_long ret = 0;
1764

    
1765
    switch( cmd ) {
1766
        case GETVAL:
1767
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1768
            ret = get_errno(semctl(first, second, cmd, arg));
1769
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1770
            break;
1771
        case SETVAL:
1772
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1773
            ret = get_errno(semctl(first, second, cmd, arg));
1774
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1775
            break;
1776
        case GETALL:
1777
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1778
            ret = get_errno(semctl(first, second, cmd, arg));
1779
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1780
            break;
1781
        case SETALL:
1782
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1783
            ret = get_errno(semctl(first, second, cmd, arg));
1784
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1785
            break;
1786
        case IPC_STAT:
1787
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1788
            ret = get_errno(semctl(first, second, cmd, arg));
1789
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1790
            break;
1791
        case IPC_SET:
1792
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1793
            ret = get_errno(semctl(first, second, cmd, arg));
1794
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1795
            break;
1796
    default:
1797
            ret = get_errno(semctl(first, second, cmd, arg));
1798
    }
1799

    
1800
    return ret;
1801
}
1802

    
1803
struct target_msqid_ds
1804
{
1805
  struct target_ipc_perm msg_perm;
1806
  abi_ulong msg_stime;
1807
  abi_ulong __unused1;
1808
  abi_ulong msg_rtime;
1809
  abi_ulong __unused2;
1810
  abi_ulong msg_ctime;
1811
  abi_ulong __unused3;
1812
  abi_ulong __msg_cbytes;
1813
  abi_ulong msg_qnum;
1814
  abi_ulong msg_qbytes;
1815
  abi_ulong msg_lspid;
1816
  abi_ulong msg_lrpid;
1817
  abi_ulong __unused4;
1818
  abi_ulong __unused5;
1819
};
1820

    
1821
static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
1822
                                               abi_ulong target_addr)
1823
{
1824
    struct target_msqid_ds *target_md;
1825

    
1826
    if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
1827
        return -TARGET_EFAULT;
1828
    target_to_host_ipc_perm(&(host_md->msg_perm),target_addr);
1829
    host_md->msg_stime = tswapl(target_md->msg_stime);
1830
    host_md->msg_rtime = tswapl(target_md->msg_rtime);
1831
    host_md->msg_ctime = tswapl(target_md->msg_ctime);
1832
    host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
1833
    host_md->msg_qnum = tswapl(target_md->msg_qnum);
1834
    host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
1835
    host_md->msg_lspid = tswapl(target_md->msg_lspid);
1836
    host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
1837
    unlock_user_struct(target_md, target_addr, 0);
1838
    return 0;
1839
}
1840

    
1841
static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
1842
                                               struct msqid_ds *host_md)
1843
{
1844
    struct target_msqid_ds *target_md;
1845

    
1846
    if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
1847
        return -TARGET_EFAULT;
1848
    host_to_target_ipc_perm(target_addr,&(host_md->msg_perm));
1849
    target_md->msg_stime = tswapl(host_md->msg_stime);
1850
    target_md->msg_rtime = tswapl(host_md->msg_rtime);
1851
    target_md->msg_ctime = tswapl(host_md->msg_ctime);
1852
    target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
1853
    target_md->msg_qnum = tswapl(host_md->msg_qnum);
1854
    target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
1855
    target_md->msg_lspid = tswapl(host_md->msg_lspid);
1856
    target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
1857
    unlock_user_struct(target_md, target_addr, 1);
1858
    return 0;
1859
}
1860

    
1861
static inline abi_long do_msgctl(int first, int second, abi_long ptr)
1862
{
1863
    struct msqid_ds dsarg;
1864
    int cmd = second&0xff;
1865
    abi_long ret = 0;
1866
    switch( cmd ) {
1867
    case IPC_STAT:
1868
    case IPC_SET:
1869
        target_to_host_msqid_ds(&dsarg,ptr);
1870
        ret = get_errno(msgctl(first, cmd, &dsarg));
1871
        host_to_target_msqid_ds(ptr,&dsarg);
1872
    default:
1873
        ret = get_errno(msgctl(first, cmd, &dsarg));
1874
    }
1875
    return ret;
1876
}
1877

    
1878
struct target_msgbuf {
1879
        abi_ulong mtype;
1880
        char        mtext[1];
1881
};
1882

    
1883
static inline abi_long do_msgsnd(int msqid, abi_long msgp,
1884
                                 unsigned int msgsz, int msgflg)
1885
{
1886
    struct target_msgbuf *target_mb;
1887
    struct msgbuf *host_mb;
1888
    abi_long ret = 0;
1889

    
1890
    if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
1891
        return -TARGET_EFAULT;
1892
    host_mb = malloc(msgsz+sizeof(long));
1893
    host_mb->mtype = tswapl(target_mb->mtype);
1894
    memcpy(host_mb->mtext,target_mb->mtext,msgsz);
1895
    ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
1896
    free(host_mb);
1897
    unlock_user_struct(target_mb, msgp, 0);
1898

    
1899
    return ret;
1900
}
1901

    
1902
static inline abi_long do_msgrcv(int msqid, abi_long msgp,
1903
                                 unsigned int msgsz, int msgtype,
1904
                                 int msgflg)
1905
{
1906
    struct target_msgbuf *target_mb;
1907
    char *target_mtext;
1908
    struct msgbuf *host_mb;
1909
    abi_long ret = 0;
1910

    
1911
    if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
1912
        return -TARGET_EFAULT;
1913
    host_mb = malloc(msgsz+sizeof(long));
1914
    ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg));
1915
    if (ret > 0) {
1916
        abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
1917
        target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
1918
        if (!target_mtext) {
1919
            ret = -TARGET_EFAULT;
1920
            goto end;
1921
        }
1922
            memcpy(target_mb->mtext, host_mb->mtext, ret);
1923
        unlock_user(target_mtext, target_mtext_addr, ret);
1924
    }
1925
    target_mb->mtype = tswapl(host_mb->mtype);
1926
    free(host_mb);
1927

    
1928
end:
1929
    if (target_mb)
1930
        unlock_user_struct(target_mb, msgp, 1);
1931
    return ret;
1932
}
1933

    
1934
/* ??? This only works with linear mappings.  */
1935
/* do_ipc() must return target values and target errnos. */
1936
static abi_long do_ipc(unsigned int call, int first,
1937
                       int second, int third,
1938
                       abi_long ptr, abi_long fifth)
1939
{
1940
    int version;
1941
    abi_long ret = 0;
1942
    struct shmid_ds shm_info;
1943
    int i;
1944

    
1945
    version = call >> 16;
1946
    call &= 0xffff;
1947

    
1948
    switch (call) {
1949
    case IPCOP_semop:
1950
        ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second));
1951
        break;
1952

    
1953
    case IPCOP_semget:
1954
        ret = get_errno(semget(first, second, third));
1955
        break;
1956

    
1957
    case IPCOP_semctl:
1958
        ret = do_semctl(first, second, third, ptr);
1959
        break;
1960

    
1961
    case IPCOP_semtimedop:
1962
        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
1963
        ret = -TARGET_ENOSYS;
1964
        break;
1965

    
1966
        case IPCOP_msgget:
1967
                ret = get_errno(msgget(first, second));
1968
                break;
1969

    
1970
        case IPCOP_msgsnd:
1971
                ret = do_msgsnd(first, ptr, second, third);
1972
                break;
1973

    
1974
        case IPCOP_msgctl:
1975
                ret = do_msgctl(first, second, ptr);
1976
                break;
1977

    
1978
        case IPCOP_msgrcv:
1979
                {
1980
                      /* XXX: this code is not correct */
1981
                      struct ipc_kludge
1982
                      {
1983
                              void *__unbounded msgp;
1984
                              long int msgtyp;
1985
                      };
1986

    
1987
                      struct ipc_kludge *foo = (struct ipc_kludge *)g2h(ptr);
1988
                      struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1989

    
1990
                      ret = do_msgrcv(first, (long)msgp, second, 0, third);
1991

    
1992
                }
1993
                break;
1994

    
1995
    case IPCOP_shmat:
1996
        {
1997
            abi_ulong raddr;
1998
            void *host_addr;
1999
            /* SHM_* flags are the same on all linux platforms */
2000
            host_addr = shmat(first, (void *)g2h(ptr), second);
2001
            if (host_addr == (void *)-1) {
2002
                ret = get_errno((long)host_addr);
2003
                break;
2004
            }
2005
            raddr = h2g((unsigned long)host_addr);
2006
            /* find out the length of the shared memory segment */
2007
            
2008
            ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
2009
            if (is_error(ret)) {
2010
                /* can't get length, bail out */
2011
                shmdt(host_addr);
2012
                break;
2013
            }
2014
            page_set_flags(raddr, raddr + shm_info.shm_segsz,
2015
                           PAGE_VALID | PAGE_READ |
2016
                           ((second & SHM_RDONLY)? 0: PAGE_WRITE));
2017
            for (i = 0; i < N_SHM_REGIONS; ++i) {
2018
                if (shm_regions[i].start == 0) {
2019
                    shm_regions[i].start = raddr;
2020
                    shm_regions[i].size = shm_info.shm_segsz;
2021
                    break;
2022
                }
2023
            }
2024
            if (put_user_ual(raddr, third))
2025
                return -TARGET_EFAULT;
2026
            ret = 0;
2027
        }
2028
        break;
2029
    case IPCOP_shmdt:
2030
        for (i = 0; i < N_SHM_REGIONS; ++i) {
2031
            if (shm_regions[i].start == ptr) {
2032
                shm_regions[i].start = 0;
2033
                page_set_flags(ptr, shm_regions[i].size, 0);
2034
                break;
2035
            }
2036
        }
2037
        ret = get_errno(shmdt((void *)g2h(ptr)));
2038
        break;
2039

    
2040
    case IPCOP_shmget:
2041
        /* IPC_* flag values are the same on all linux platforms */
2042
        ret = get_errno(shmget(first, second, third));
2043
        break;
2044

    
2045
        /* IPC_* and SHM_* command values are the same on all linux platforms */
2046
    case IPCOP_shmctl:
2047
        switch(second) {
2048
        case IPC_RMID:
2049
        case SHM_LOCK:
2050
        case SHM_UNLOCK:
2051
            ret = get_errno(shmctl(first, second, NULL));
2052
            break;
2053
        default:
2054
            goto unimplemented;
2055
        }
2056
        break;
2057
    default:
2058
    unimplemented:
2059
        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
2060
        ret = -TARGET_ENOSYS;
2061
        break;
2062
    }
2063
    return ret;
2064
}
2065
#endif
2066

    
2067
/* kernel structure types definitions */
2068
#define IFNAMSIZ        16
2069

    
2070
#define STRUCT(name, list...) STRUCT_ ## name,
2071
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
2072
enum {
2073
#include "syscall_types.h"
2074
};
2075
#undef STRUCT
2076
#undef STRUCT_SPECIAL
2077

    
2078
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
2079
#define STRUCT_SPECIAL(name)
2080
#include "syscall_types.h"
2081
#undef STRUCT
2082
#undef STRUCT_SPECIAL
2083

    
2084
typedef struct IOCTLEntry {
2085
    unsigned int target_cmd;
2086
    unsigned int host_cmd;
2087
    const char *name;
2088
    int access;
2089
    const argtype arg_type[5];
2090
} IOCTLEntry;
2091

    
2092
#define IOC_R 0x0001
2093
#define IOC_W 0x0002
2094
#define IOC_RW (IOC_R | IOC_W)
2095

    
2096
#define MAX_STRUCT_SIZE 4096
2097

    
2098
IOCTLEntry ioctl_entries[] = {
2099
#define IOCTL(cmd, access, types...) \
2100
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
2101
#include "ioctls.h"
2102
    { 0, 0, },
2103
};
2104

    
2105
/* ??? Implement proper locking for ioctls.  */
2106
/* do_ioctl() Must return target values and target errnos. */
2107
static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
2108
{
2109
    const IOCTLEntry *ie;
2110
    const argtype *arg_type;
2111
    abi_long ret;
2112
    uint8_t buf_temp[MAX_STRUCT_SIZE];
2113
    int target_size;
2114
    void *argptr;
2115

    
2116
    ie = ioctl_entries;
2117
    for(;;) {
2118
        if (ie->target_cmd == 0) {
2119
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
2120
            return -TARGET_ENOSYS;
2121
        }
2122
        if (ie->target_cmd == cmd)
2123
            break;
2124
        ie++;
2125
    }
2126
    arg_type = ie->arg_type;
2127
#if defined(DEBUG)
2128
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
2129
#endif
2130
    switch(arg_type[0]) {
2131
    case TYPE_NULL:
2132
        /* no argument */
2133
        ret = get_errno(ioctl(fd, ie->host_cmd));
2134
        break;
2135
    case TYPE_PTRVOID:
2136
    case TYPE_INT:
2137
        /* int argment */
2138
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
2139
        break;
2140
    case TYPE_PTR:
2141
        arg_type++;
2142
        target_size = thunk_type_size(arg_type, 0);
2143
        switch(ie->access) {
2144
        case IOC_R:
2145
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2146
            if (!is_error(ret)) {
2147
                argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2148
                if (!argptr)
2149
                    return -TARGET_EFAULT;
2150
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2151
                unlock_user(argptr, arg, target_size);
2152
            }
2153
            break;
2154
        case IOC_W:
2155
            argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2156
            if (!argptr)
2157
                return -TARGET_EFAULT;
2158
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2159
            unlock_user(argptr, arg, 0);
2160
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2161
            break;
2162
        default:
2163
        case IOC_RW:
2164
            argptr = lock_user(VERIFY_READ, arg, target_size, 1);
2165
            if (!argptr)
2166
                return -TARGET_EFAULT;
2167
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
2168
            unlock_user(argptr, arg, 0);
2169
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
2170
            if (!is_error(ret)) {
2171
                argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
2172
                if (!argptr)
2173
                    return -TARGET_EFAULT;
2174
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
2175
                unlock_user(argptr, arg, target_size);
2176
            }
2177
            break;
2178
        }
2179
        break;
2180
    default:
2181
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
2182
                 (long)cmd, arg_type[0]);
2183
        ret = -TARGET_ENOSYS;
2184
        break;
2185
    }
2186
    return ret;
2187
}
2188

    
2189
bitmask_transtbl iflag_tbl[] = {
2190
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
2191
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
2192
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
2193
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
2194
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
2195
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
2196
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
2197
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
2198
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
2199
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
2200
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
2201
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
2202
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
2203
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
2204
        { 0, 0, 0, 0 }
2205
};
2206

    
2207
bitmask_transtbl oflag_tbl[] = {
2208
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
2209
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
2210
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
2211
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
2212
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
2213
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
2214
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
2215
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
2216
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
2217
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
2218
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
2219
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
2220
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
2221
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
2222
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
2223
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
2224
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
2225
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
2226
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
2227
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
2228
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
2229
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
2230
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
2231
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
2232
        { 0, 0, 0, 0 }
2233
};
2234

    
2235
bitmask_transtbl cflag_tbl[] = {
2236
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
2237
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
2238
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
2239
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
2240
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
2241
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
2242
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
2243
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
2244
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
2245
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
2246
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
2247
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
2248
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
2249
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
2250
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
2251
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
2252
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
2253
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
2254
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
2255
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
2256
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
2257
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
2258
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
2259
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
2260
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
2261
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
2262
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
2263
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
2264
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
2265
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
2266
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
2267
        { 0, 0, 0, 0 }
2268
};
2269

    
2270
bitmask_transtbl lflag_tbl[] = {
2271
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
2272
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
2273
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
2274
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
2275
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
2276
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
2277
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
2278
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
2279
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
2280
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
2281
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
2282
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
2283
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
2284
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
2285
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
2286
        { 0, 0, 0, 0 }
2287
};
2288

    
2289
static void target_to_host_termios (void *dst, const void *src)
2290
{
2291
    struct host_termios *host = dst;
2292
    const struct target_termios *target = src;
2293

    
2294
    host->c_iflag =
2295
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
2296
    host->c_oflag =
2297
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
2298
    host->c_cflag =
2299
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
2300
    host->c_lflag =
2301
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
2302
    host->c_line = target->c_line;
2303

    
2304
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
2305
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
2306
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
2307
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
2308
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
2309
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
2310
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
2311
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
2312
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
2313
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
2314
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
2315
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
2316
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
2317
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
2318
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
2319
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
2320
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
2321
}
2322

    
2323
static void host_to_target_termios (void *dst, const void *src)
2324
{
2325
    struct target_termios *target = dst;
2326
    const struct host_termios *host = src;
2327

    
2328
    target->c_iflag =
2329
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
2330
    target->c_oflag =
2331
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
2332
    target->c_cflag =
2333
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
2334
    target->c_lflag =
2335
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
2336
    target->c_line = host->c_line;
2337

    
2338
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
2339
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
2340
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
2341
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
2342
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
2343
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
2344
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
2345
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
2346
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
2347
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
2348
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
2349
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
2350
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
2351
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
2352
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
2353
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
2354
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
2355
}
2356

    
2357
StructEntry struct_termios_def = {
2358
    .convert = { host_to_target_termios, target_to_host_termios },
2359
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
2360
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
2361
};
2362

    
2363
static bitmask_transtbl mmap_flags_tbl[] = {
2364
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
2365
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
2366
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
2367
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
2368
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
2369
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
2370
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
2371
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
2372
        { 0, 0, 0, 0 }
2373
};
2374

    
2375
static bitmask_transtbl fcntl_flags_tbl[] = {
2376
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
2377
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
2378
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
2379
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
2380
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
2381
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
2382
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
2383
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
2384
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
2385
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
2386
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
2387
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
2388
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
2389
#if defined(O_DIRECT)
2390
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
2391
#endif
2392
        { 0, 0, 0, 0 }
2393
};
2394

    
2395
#if defined(TARGET_I386)
2396

    
2397
/* NOTE: there is really one LDT for all the threads */
2398
uint8_t *ldt_table;
2399

    
2400
static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
2401
{
2402
    int size;
2403
    void *p;
2404

    
2405
    if (!ldt_table)
2406
        return 0;
2407
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
2408
    if (size > bytecount)
2409
        size = bytecount;
2410
    p = lock_user(VERIFY_WRITE, ptr, size, 0);
2411
    if (!p)
2412
        return -TARGET_EFAULT;
2413
    /* ??? Should this by byteswapped?  */
2414
    memcpy(p, ldt_table, size);
2415
    unlock_user(p, ptr, size);
2416
    return size;
2417
}
2418

    
2419
/* XXX: add locking support */
2420
static abi_long write_ldt(CPUX86State *env,
2421
                          abi_ulong ptr, unsigned long bytecount, int oldmode)
2422
{
2423
    struct target_modify_ldt_ldt_s ldt_info;
2424
    struct target_modify_ldt_ldt_s *target_ldt_info;
2425
    int seg_32bit, contents, read_exec_only, limit_in_pages;
2426
    int seg_not_present, useable, lm;
2427
    uint32_t *lp, entry_1, entry_2;
2428

    
2429
    if (bytecount != sizeof(ldt_info))
2430
        return -TARGET_EINVAL;
2431
    if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
2432
        return -TARGET_EFAULT;
2433
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2434
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2435
    ldt_info.limit = tswap32(target_ldt_info->limit);
2436
    ldt_info.flags = tswap32(target_ldt_info->flags);
2437
    unlock_user_struct(target_ldt_info, ptr, 0);
2438

    
2439
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
2440
        return -TARGET_EINVAL;
2441
    seg_32bit = ldt_info.flags & 1;
2442
    contents = (ldt_info.flags >> 1) & 3;
2443
    read_exec_only = (ldt_info.flags >> 3) & 1;
2444
    limit_in_pages = (ldt_info.flags >> 4) & 1;
2445
    seg_not_present = (ldt_info.flags >> 5) & 1;
2446
    useable = (ldt_info.flags >> 6) & 1;
2447
#ifdef TARGET_ABI32
2448
    lm = 0;
2449
#else
2450
    lm = (ldt_info.flags >> 7) & 1;
2451
#endif
2452
    if (contents == 3) {
2453
        if (oldmode)
2454
            return -TARGET_EINVAL;
2455
        if (seg_not_present == 0)
2456
            return -TARGET_EINVAL;
2457
    }
2458
    /* allocate the LDT */
2459
    if (!ldt_table) {
2460
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2461
        if (!ldt_table)
2462
            return -TARGET_ENOMEM;
2463
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2464
        env->ldt.base = h2g((unsigned long)ldt_table);
2465
        env->ldt.limit = 0xffff;
2466
    }
2467

    
2468
    /* NOTE: same code as Linux kernel */
2469
    /* Allow LDTs to be cleared by the user. */
2470
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2471
        if (oldmode ||
2472
            (contents == 0                &&
2473
             read_exec_only == 1        &&
2474
             seg_32bit == 0                &&
2475
             limit_in_pages == 0        &&
2476
             seg_not_present == 1        &&
2477
             useable == 0 )) {
2478
            entry_1 = 0;
2479
            entry_2 = 0;
2480
            goto install;
2481
        }
2482
    }
2483

    
2484
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2485
        (ldt_info.limit & 0x0ffff);
2486
    entry_2 = (ldt_info.base_addr & 0xff000000) |
2487
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2488
        (ldt_info.limit & 0xf0000) |
2489
        ((read_exec_only ^ 1) << 9) |
2490
        (contents << 10) |
2491
        ((seg_not_present ^ 1) << 15) |
2492
        (seg_32bit << 22) |
2493
        (limit_in_pages << 23) |
2494
        (lm << 21) |
2495
        0x7000;
2496
    if (!oldmode)
2497
        entry_2 |= (useable << 20);
2498

    
2499
    /* Install the new entry ...  */
2500
install:
2501
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
2502
    lp[0] = tswap32(entry_1);
2503
    lp[1] = tswap32(entry_2);
2504
    return 0;
2505
}
2506

    
2507
/* specific and weird i386 syscalls */
2508
abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 
2509
                       unsigned long bytecount)
2510
{
2511
    abi_long ret;
2512

    
2513
    switch (func) {
2514
    case 0:
2515
        ret = read_ldt(ptr, bytecount);
2516
        break;
2517
    case 1:
2518
        ret = write_ldt(env, ptr, bytecount, 1);
2519
        break;
2520
    case 0x11:
2521
        ret = write_ldt(env, ptr, bytecount, 0);
2522
        break;
2523
    default:
2524
        ret = -TARGET_ENOSYS;
2525
        break;
2526
    }
2527
    return ret;
2528
}
2529

    
2530
abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
2531
{
2532
    uint64_t *gdt_table = g2h(env->gdt.base);
2533
    struct target_modify_ldt_ldt_s ldt_info;
2534
    struct target_modify_ldt_ldt_s *target_ldt_info;
2535
    int seg_32bit, contents, read_exec_only, limit_in_pages;
2536
    int seg_not_present, useable, lm;
2537
    uint32_t *lp, entry_1, entry_2;
2538
    int i;
2539

    
2540
    lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
2541
    if (!target_ldt_info)
2542
        return -TARGET_EFAULT;
2543
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2544
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2545
    ldt_info.limit = tswap32(target_ldt_info->limit);
2546
    ldt_info.flags = tswap32(target_ldt_info->flags);
2547
    if (ldt_info.entry_number == -1) {
2548
        for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
2549
            if (gdt_table[i] == 0) {
2550
                ldt_info.entry_number = i;
2551
                target_ldt_info->entry_number = tswap32(i);
2552
                break;
2553
            }
2554
        }
2555
    }
2556
    unlock_user_struct(target_ldt_info, ptr, 1);
2557

    
2558
    if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 
2559
        ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
2560
           return -TARGET_EINVAL;
2561
    seg_32bit = ldt_info.flags & 1;
2562
    contents = (ldt_info.flags >> 1) & 3;
2563
    read_exec_only = (ldt_info.flags >> 3) & 1;
2564
    limit_in_pages = (ldt_info.flags >> 4) & 1;
2565
    seg_not_present = (ldt_info.flags >> 5) & 1;
2566
    useable = (ldt_info.flags >> 6) & 1;
2567
#ifdef TARGET_ABI32
2568
    lm = 0;
2569
#else
2570
    lm = (ldt_info.flags >> 7) & 1;
2571
#endif
2572

    
2573
    if (contents == 3) {
2574
        if (seg_not_present == 0)
2575
            return -TARGET_EINVAL;
2576
    }
2577

    
2578
    /* NOTE: same code as Linux kernel */
2579
    /* Allow LDTs to be cleared by the user. */
2580
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2581
        if ((contents == 0             &&
2582
             read_exec_only == 1       &&
2583
             seg_32bit == 0            &&
2584
             limit_in_pages == 0       &&
2585
             seg_not_present == 1      &&
2586
             useable == 0 )) {
2587
            entry_1 = 0;
2588
            entry_2 = 0;
2589
            goto install;
2590
        }
2591
    }
2592

    
2593
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2594
        (ldt_info.limit & 0x0ffff);
2595
    entry_2 = (ldt_info.base_addr & 0xff000000) |
2596
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2597
        (ldt_info.limit & 0xf0000) |
2598
        ((read_exec_only ^ 1) << 9) |
2599
        (contents << 10) |
2600
        ((seg_not_present ^ 1) << 15) |
2601
        (seg_32bit << 22) |
2602
        (limit_in_pages << 23) |
2603
        (useable << 20) |
2604
        (lm << 21) |
2605
        0x7000;
2606

    
2607
    /* Install the new entry ...  */
2608
install:
2609
    lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
2610
    lp[0] = tswap32(entry_1);
2611
    lp[1] = tswap32(entry_2);
2612
    return 0;
2613
}
2614

    
2615
abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
2616
{
2617
    struct target_modify_ldt_ldt_s *target_ldt_info;
2618
    uint64_t *gdt_table = g2h(env->gdt.base);
2619
    uint32_t base_addr, limit, flags;
2620
    int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
2621
    int seg_not_present, useable, lm;
2622
    uint32_t *lp, entry_1, entry_2;
2623

    
2624
    lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
2625
    if (!target_ldt_info)
2626
        return -TARGET_EFAULT;
2627
    idx = tswap32(target_ldt_info->entry_number);
2628
    if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
2629
        idx > TARGET_GDT_ENTRY_TLS_MAX) {
2630
        unlock_user_struct(target_ldt_info, ptr, 1);
2631
        return -TARGET_EINVAL;
2632
    }
2633
    lp = (uint32_t *)(gdt_table + idx);
2634
    entry_1 = tswap32(lp[0]);
2635
    entry_2 = tswap32(lp[1]);
2636
    
2637
    read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
2638
    contents = (entry_2 >> 10) & 3;
2639
    seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
2640
    seg_32bit = (entry_2 >> 22) & 1;
2641
    limit_in_pages = (entry_2 >> 23) & 1;
2642
    useable = (entry_2 >> 20) & 1;
2643
#ifdef TARGET_ABI32
2644
    lm = 0;
2645
#else
2646
    lm = (entry_2 >> 21) & 1;
2647
#endif
2648
    flags = (seg_32bit << 0) | (contents << 1) |
2649
        (read_exec_only << 3) | (limit_in_pages << 4) |
2650
        (seg_not_present << 5) | (useable << 6) | (lm << 7);
2651
    limit = (entry_1 & 0xffff) | (entry_2  & 0xf0000);
2652
    base_addr = (entry_1 >> 16) | 
2653
        (entry_2 & 0xff000000) | 
2654
        ((entry_2 & 0xff) << 16);
2655
    target_ldt_info->base_addr = tswapl(base_addr);
2656
    target_ldt_info->limit = tswap32(limit);
2657
    target_ldt_info->flags = tswap32(flags);
2658
    unlock_user_struct(target_ldt_info, ptr, 1);
2659
    return 0;
2660
}
2661

    
2662
#ifndef TARGET_ABI32
2663
abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
2664
{
2665
    abi_long ret;
2666
    abi_ulong val;
2667
    int idx;
2668
    
2669
    switch(code) {
2670
    case TARGET_ARCH_SET_GS:
2671
    case TARGET_ARCH_SET_FS:
2672
        if (code == TARGET_ARCH_SET_GS)
2673
            idx = R_GS;
2674
        else
2675
            idx = R_FS;
2676
        cpu_x86_load_seg(env, idx, 0);
2677
        env->segs[idx].base = addr;
2678
        break;
2679
    case TARGET_ARCH_GET_GS:
2680
    case TARGET_ARCH_GET_FS:
2681
        if (code == TARGET_ARCH_GET_GS)
2682
            idx = R_GS;
2683
        else
2684
            idx = R_FS;
2685
        val = env->segs[idx].base;
2686
        if (put_user(val, addr, abi_ulong))
2687
            return -TARGET_EFAULT;
2688
        break;
2689
    default:
2690
        ret = -TARGET_EINVAL;
2691
        break;
2692
    }
2693
    return 0;
2694
}
2695
#endif
2696

    
2697
#endif /* defined(TARGET_I386) */
2698

    
2699
/* this stack is the equivalent of the kernel stack associated with a
2700
   thread/process */
2701
#define NEW_STACK_SIZE 8192
2702

    
2703
static int clone_func(void *arg)
2704
{
2705
    CPUState *env = arg;
2706
    cpu_loop(env);
2707
    /* never exits */
2708
    return 0;
2709
}
2710

    
2711
/* do_fork() Must return host values and target errnos (unlike most
2712
   do_*() functions). */
2713
int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp)
2714
{
2715
    int ret;
2716
    TaskState *ts;
2717
    uint8_t *new_stack;
2718
    CPUState *new_env;
2719

    
2720
    if (flags & CLONE_VM) {
2721
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
2722
        memset(ts, 0, sizeof(TaskState));
2723
        new_stack = ts->stack;
2724
        ts->used = 1;
2725
        /* add in task state list */
2726
        ts->next = first_task_state;
2727
        first_task_state = ts;
2728
        /* we create a new CPU instance. */
2729
        new_env = cpu_copy(env);
2730
#if defined(TARGET_I386)
2731
        if (!newsp)
2732
            newsp = env->regs[R_ESP];
2733
        new_env->regs[R_ESP] = newsp;
2734
        new_env->regs[R_EAX] = 0;
2735
#elif defined(TARGET_ARM)
2736
        if (!newsp)
2737
            newsp = env->regs[13];
2738
        new_env->regs[13] = newsp;
2739
        new_env->regs[0] = 0;
2740
#elif defined(TARGET_SPARC)
2741
        if (!newsp)
2742
            newsp = env->regwptr[22];
2743
        new_env->regwptr[22] = newsp;
2744
        new_env->regwptr[0] = 0;
2745
        /* XXXXX */
2746
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
2747
#elif defined(TARGET_M68K)
2748
        if (!newsp)
2749
            newsp = env->aregs[7];
2750
        new_env->aregs[7] = newsp;
2751
        new_env->dregs[0] = 0;
2752
        /* ??? is this sufficient?  */
2753
#elif defined(TARGET_MIPS)
2754
        if (!newsp)
2755
            newsp = env->gpr[env->current_tc][29];
2756
        new_env->gpr[env->current_tc][29] = newsp;
2757
#elif defined(TARGET_PPC)
2758
        if (!newsp)
2759
            newsp = env->gpr[1];
2760
        new_env->gpr[1] = newsp;
2761
        {
2762
            int i;
2763
            for (i = 7; i < 32; i++)
2764
                new_env->gpr[i] = 0;
2765
        }
2766
#elif defined(TARGET_SH4)
2767
        if (!newsp)
2768
          newsp = env->gregs[15];
2769
        new_env->gregs[15] = newsp;
2770
        /* XXXXX */
2771
#elif defined(TARGET_ALPHA)
2772
       if (!newsp)
2773
         newsp = env->ir[30];
2774
       new_env->ir[30] = newsp;
2775
        /* ? */
2776
        {
2777
            int i;
2778
            for (i = 7; i < 30; i++)
2779
                new_env->ir[i] = 0;
2780
        }
2781
#elif defined(TARGET_CRIS)
2782
        if (!newsp)
2783
          newsp = env->regs[14];
2784
        new_env->regs[14] = newsp;
2785
#else
2786
#error unsupported target CPU
2787
#endif
2788
        new_env->opaque = ts;
2789
#ifdef __ia64__
2790
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2791
#else
2792
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2793
#endif
2794
    } else {
2795
        /* if no CLONE_VM, we consider it is a fork */
2796
        if ((flags & ~CSIGNAL) != 0)
2797
            return -EINVAL;
2798
        ret = fork();
2799
    }
2800
    return ret;
2801
}
2802

    
2803
static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
2804
{
2805
    struct flock fl;
2806
    struct target_flock *target_fl;
2807
    struct flock64 fl64;
2808
    struct target_flock64 *target_fl64;
2809
    abi_long ret;
2810

    
2811
    switch(cmd) {
2812
    case TARGET_F_GETLK:
2813
        if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
2814
            return -TARGET_EFAULT;
2815
        fl.l_type = tswap16(target_fl->l_type);
2816
        fl.l_whence = tswap16(target_fl->l_whence);
2817
        fl.l_start = tswapl(target_fl->l_start);
2818
        fl.l_len = tswapl(target_fl->l_len);
2819
        fl.l_pid = tswapl(target_fl->l_pid);
2820
        unlock_user_struct(target_fl, arg, 0);
2821
        ret = get_errno(fcntl(fd, cmd, &fl));
2822
        if (ret == 0) {
2823
            if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
2824
                return -TARGET_EFAULT;
2825
            target_fl->l_type = tswap16(fl.l_type);
2826
            target_fl->l_whence = tswap16(fl.l_whence);
2827
            target_fl->l_start = tswapl(fl.l_start);
2828
            target_fl->l_len = tswapl(fl.l_len);
2829
            target_fl->l_pid = tswapl(fl.l_pid);
2830
            unlock_user_struct(target_fl, arg, 1);
2831
        }
2832
        break;
2833

    
2834
    case TARGET_F_SETLK:
2835
    case TARGET_F_SETLKW:
2836
        if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
2837
            return -TARGET_EFAULT;
2838
        fl.l_type = tswap16(target_fl->l_type);
2839
        fl.l_whence = tswap16(target_fl->l_whence);
2840
        fl.l_start = tswapl(target_fl->l_start);
2841
        fl.l_len = tswapl(target_fl->l_len);
2842
        fl.l_pid = tswapl(target_fl->l_pid);
2843
        unlock_user_struct(target_fl, arg, 0);
2844
        ret = get_errno(fcntl(fd, cmd, &fl));
2845
        break;
2846

    
2847
    case TARGET_F_GETLK64:
2848
        if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
2849
            return -TARGET_EFAULT;
2850
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2851
        fl64.l_whence = tswap16(target_fl64->l_whence);
2852
        fl64.l_start = tswapl(target_fl64->l_start);
2853
        fl64.l_len = tswapl(target_fl64->l_len);
2854
        fl64.l_pid = tswap16(target_fl64->l_pid);
2855
        unlock_user_struct(target_fl64, arg, 0);
2856
        ret = get_errno(fcntl(fd, cmd >> 1, &fl64));
2857
        if (ret == 0) {
2858
            if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
2859
                return -TARGET_EFAULT;
2860
            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
2861
            target_fl64->l_whence = tswap16(fl64.l_whence);
2862
            target_fl64->l_start = tswapl(fl64.l_start);
2863
            target_fl64->l_len = tswapl(fl64.l_len);
2864
            target_fl64->l_pid = tswapl(fl64.l_pid);
2865
            unlock_user_struct(target_fl64, arg, 1);
2866
        }
2867
        break;
2868
    case TARGET_F_SETLK64:
2869
    case TARGET_F_SETLKW64:
2870
        if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
2871
            return -TARGET_EFAULT;
2872
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2873
        fl64.l_whence = tswap16(target_fl64->l_whence);
2874
        fl64.l_start = tswapl(target_fl64->l_start);
2875
        fl64.l_len = tswapl(target_fl64->l_len);
2876
        fl64.l_pid = tswap16(target_fl64->l_pid);
2877
        unlock_user_struct(target_fl64, arg, 0);
2878
        ret = get_errno(fcntl(fd, cmd >> 1, &fl64));
2879
        break;
2880

    
2881
    case F_GETFL:
2882
        ret = get_errno(fcntl(fd, cmd, arg));
2883
        if (ret >= 0) {
2884
            ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
2885
        }
2886
        break;
2887

    
2888
    case F_SETFL:
2889
        ret = get_errno(fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
2890
        break;
2891

    
2892
    default:
2893
        ret = get_errno(fcntl(fd, cmd, arg));
2894
        break;
2895
    }
2896
    return ret;
2897
}
2898

    
2899
#ifdef USE_UID16
2900

    
2901
static inline int high2lowuid(int uid)
2902
{
2903
    if (uid > 65535)
2904
        return 65534;
2905
    else
2906
        return uid;
2907
}
2908

    
2909
static inline int high2lowgid(int gid)
2910
{
2911
    if (gid > 65535)
2912
        return 65534;
2913
    else
2914
        return gid;
2915
}
2916

    
2917
static inline int low2highuid(int uid)
2918
{
2919
    if ((int16_t)uid == -1)
2920
        return -1;
2921
    else
2922
        return uid;
2923
}
2924

    
2925
static inline int low2highgid(int gid)
2926
{
2927
    if ((int16_t)gid == -1)
2928
        return -1;
2929
    else
2930
        return gid;
2931
}
2932

    
2933
#endif /* USE_UID16 */
2934

    
2935
void syscall_init(void)
2936
{
2937
    IOCTLEntry *ie;
2938
    const argtype *arg_type;
2939
    int size;
2940
    int i;
2941

    
2942
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
2943
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
2944
#include "syscall_types.h"
2945
#undef STRUCT
2946
#undef STRUCT_SPECIAL
2947

    
2948
    /* we patch the ioctl size if necessary. We rely on the fact that
2949
       no ioctl has all the bits at '1' in the size field */
2950
    ie = ioctl_entries;
2951
    while (ie->target_cmd != 0) {
2952
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
2953
            TARGET_IOC_SIZEMASK) {
2954
            arg_type = ie->arg_type;
2955
            if (arg_type[0] != TYPE_PTR) {
2956
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2957
                        ie->target_cmd);
2958
                exit(1);
2959
            }
2960
            arg_type++;
2961
            size = thunk_type_size(arg_type, 0);
2962
            ie->target_cmd = (ie->target_cmd &
2963
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
2964
                (size << TARGET_IOC_SIZESHIFT);
2965
        }
2966

    
2967
        /* Build target_to_host_errno_table[] table from
2968
         * host_to_target_errno_table[]. */
2969
        for (i=0; i < ERRNO_TABLE_SIZE; i++)
2970
                target_to_host_errno_table[host_to_target_errno_table[i]] = i;
2971

    
2972
        /* automatic consistency check if same arch */
2973
#if defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)
2974
        if (ie->target_cmd != ie->host_cmd) {
2975
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
2976
                    ie->target_cmd, ie->host_cmd);
2977
        }
2978
#endif
2979
        ie++;
2980
    }
2981
}
2982

    
2983
#if TARGET_ABI_BITS == 32
2984
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
2985
{
2986
#ifdef TARGET_WORDS_BIG_ENDIAN
2987
    return ((uint64_t)word0 << 32) | word1;
2988
#else
2989
    return ((uint64_t)word1 << 32) | word0;
2990
#endif
2991
}
2992
#else /* TARGET_ABI_BITS == 32 */
2993
static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
2994
{
2995
    return word0;
2996
}
2997
#endif /* TARGET_ABI_BITS != 32 */
2998

    
2999
#ifdef TARGET_NR_truncate64
3000
static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
3001
                                         abi_long arg2,
3002
                                         abi_long arg3,
3003
                                         abi_long arg4)
3004
{
3005
#ifdef TARGET_ARM
3006
    if (((CPUARMState *)cpu_env)->eabi)
3007
      {
3008
        arg2 = arg3;
3009
        arg3 = arg4;
3010
      }
3011
#endif
3012
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
3013
}
3014
#endif
3015

    
3016
#ifdef TARGET_NR_ftruncate64
3017
static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
3018
                                          abi_long arg2,
3019
                                          abi_long arg3,
3020
                                          abi_long arg4)
3021
{
3022
#ifdef TARGET_ARM
3023
    if (((CPUARMState *)cpu_env)->eabi)
3024
      {
3025
        arg2 = arg3;
3026
        arg3 = arg4;
3027
      }
3028
#endif
3029
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
3030
}
3031
#endif
3032

    
3033
static inline abi_long target_to_host_timespec(struct timespec *host_ts,
3034
                                               abi_ulong target_addr)
3035
{
3036
    struct target_timespec *target_ts;
3037

    
3038
    if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
3039
        return -TARGET_EFAULT;
3040
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
3041
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
3042
    unlock_user_struct(target_ts, target_addr, 0);
3043
}
3044

    
3045
static inline abi_long host_to_target_timespec(abi_ulong target_addr,
3046
                                               struct timespec *host_ts)
3047
{
3048
    struct target_timespec *target_ts;
3049

    
3050
    if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
3051
        return -TARGET_EFAULT;
3052
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
3053
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
3054
    unlock_user_struct(target_ts, target_addr, 1);
3055
}
3056

    
3057
/* do_syscall() should always have a single exit point at the end so
3058
   that actions, such as logging of syscall results, can be performed.
3059
   All errnos that do_syscall() returns must be -TARGET_<errcode>. */
3060
abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
3061
                    abi_long arg2, abi_long arg3, abi_long arg4,
3062
                    abi_long arg5, abi_long arg6)
3063
{
3064
    abi_long ret;
3065
    struct stat st;
3066
    struct statfs stfs;
3067
    void *p;
3068

    
3069
#ifdef DEBUG
3070
    gemu_log("syscall %d", num);
3071
#endif
3072
    if(do_strace)
3073
        print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
3074

    
3075
    switch(num) {
3076
    case TARGET_NR_exit:
3077
#ifdef HAVE_GPROF
3078
        _mcleanup();
3079
#endif
3080
        gdb_exit(cpu_env, arg1);
3081
        /* XXX: should free thread stack and CPU env */
3082
        _exit(arg1);
3083
        ret = 0; /* avoid warning */
3084
        break;
3085
    case TARGET_NR_read:
3086
        if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
3087
            goto efault;
3088
        ret = get_errno(read(arg1, p, arg3));
3089
        unlock_user(p, arg2, ret);
3090
        break;
3091
    case TARGET_NR_write:
3092
        if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
3093
            goto efault;
3094
        ret = get_errno(write(arg1, p, arg3));
3095
        unlock_user(p, arg2, 0);
3096
        break;
3097
    case TARGET_NR_open:
3098
        if (!(p = lock_user_string(arg1)))
3099
            goto efault;
3100
        ret = get_errno(open(path(p),
3101
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
3102
                             arg3));
3103
        unlock_user(p, arg1, 0);
3104
        break;
3105
#if defined(TARGET_NR_openat) && defined(__NR_openat)
3106
    case TARGET_NR_openat:
3107
        if (!(p = lock_user_string(arg2)))
3108
            goto efault;
3109
        ret = get_errno(sys_openat(arg1,
3110
                                   path(p),
3111
                                   target_to_host_bitmask(arg3, fcntl_flags_tbl),
3112
                                   arg4));
3113
        unlock_user(p, arg2, 0);
3114
        break;
3115
#endif
3116
    case TARGET_NR_close:
3117
        ret = get_errno(close(arg1));
3118
        break;
3119
    case TARGET_NR_brk:
3120
        ret = do_brk(arg1);
3121
        break;
3122
    case TARGET_NR_fork:
3123
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
3124
        break;
3125
#ifdef TARGET_NR_waitpid
3126
    case TARGET_NR_waitpid:
3127
        {
3128
            int status;
3129
            ret = get_errno(waitpid(arg1, &status, arg3));
3130
            if (!is_error(ret) && arg2
3131
                && put_user_s32(status, arg2))
3132
                goto efault;
3133
        }
3134
        break;
3135
#endif
3136
#ifdef TARGET_NR_creat /* not on alpha */
3137
    case TARGET_NR_creat:
3138
        if (!(p = lock_user_string(arg1)))
3139
            goto efault;
3140
        ret = get_errno(creat(p, arg2));
3141
        unlock_user(p, arg1, 0);
3142
        break;
3143
#endif
3144
    case TARGET_NR_link:
3145
        {
3146
            void * p2;
3147
            p = lock_user_string(arg1);
3148
            p2 = lock_user_string(arg2);
3149
            if (!p || !p2)
3150
                ret = -TARGET_EFAULT;
3151
            else
3152
                ret = get_errno(link(p, p2));
3153
            unlock_user(p2, arg2, 0);
3154
            unlock_user(p, arg1, 0);
3155
        }
3156
        break;
3157
#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
3158
    case TARGET_NR_linkat:
3159
        {
3160
            void * p2 = NULL;
3161
            if (!arg2 || !arg4)
3162
                goto efault;
3163
            p  = lock_user_string(arg2);
3164
            p2 = lock_user_string(arg4);
3165
            if (!p || !p2)
3166
                ret = -TARGET_EFAULT;
3167
            else
3168
                ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
3169
            unlock_user(p, arg2, 0);
3170
            unlock_user(p2, arg4, 0);
3171
        }
3172
        break;
3173
#endif
3174
    case TARGET_NR_unlink:
3175
        if (!(p = lock_user_string(arg1)))
3176
            goto efault;
3177
        ret = get_errno(unlink(p));
3178
        unlock_user(p, arg1, 0);
3179
        break;
3180
#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
3181
    case TARGET_NR_unlinkat:
3182
        if (!(p = lock_user_string(arg2)))
3183
            goto efault;
3184
        ret = get_errno(sys_unlinkat(arg1, p, arg3));
3185
        unlock_user(p, arg2, 0);
3186
        break;
3187
#endif
3188
    case TARGET_NR_execve:
3189
        {
3190
            char **argp, **envp;
3191
            int argc, envc;
3192
            abi_ulong gp;
3193
            abi_ulong guest_argp;
3194
            abi_ulong guest_envp;
3195
            abi_ulong addr;
3196
            char **q;
3197

    
3198
            argc = 0;
3199
            guest_argp = arg2;
3200
            for (gp = guest_argp; ; gp += sizeof(abi_ulong)) {
3201
                if (get_user_ual(addr, gp))
3202
                    goto efault;
3203
                if (!addr)
3204
                    break;
3205
                argc++;
3206
            }
3207
            envc = 0;
3208
            guest_envp = arg3;
3209
            for (gp = guest_envp; ; gp += sizeof(abi_ulong)) {
3210
                if (get_user_ual(addr, gp))
3211
                    goto efault;
3212
                if (!addr)
3213
                    break;
3214
                envc++;
3215
            }
3216

    
3217
            argp = alloca((argc + 1) * sizeof(void *));
3218
            envp = alloca((envc + 1) * sizeof(void *));
3219

    
3220
            for (gp = guest_argp, q = argp; ;
3221
                  gp += sizeof(abi_ulong), q++) {
3222
                if (get_user_ual(addr, gp))
3223
                    goto execve_efault;
3224
                if (!addr)
3225
                    break;
3226
                if (!(*q = lock_user_string(addr)))
3227
                    goto execve_efault;
3228
            }
3229
            *q = NULL;
3230

    
3231
            for (gp = guest_envp, q = envp; ;
3232
                  gp += sizeof(abi_ulong), q++) {
3233
                if (get_user_ual(addr, gp))
3234
                    goto execve_efault;
3235
                if (!addr)
3236
                    break;
3237
                if (!(*q = lock_user_string(addr)))
3238
                    goto execve_efault;
3239
            }
3240
            *q = NULL;
3241

    
3242
            if (!(p = lock_user_string(arg1)))
3243
                goto execve_efault;
3244
            ret = get_errno(execve(p, argp, envp));
3245
            unlock_user(p, arg1, 0);
3246

    
3247
            goto execve_end;
3248

    
3249
        execve_efault:
3250
            ret = -TARGET_EFAULT;
3251

    
3252
        execve_end:
3253
            for (gp = guest_argp, q = argp; *q;
3254
                  gp += sizeof(abi_ulong), q++) {
3255
                if (get_user_ual(addr, gp)
3256
                    || !addr)
3257
                    break;
3258
                unlock_user(*q, addr, 0);
3259
            }
3260
            for (gp = guest_envp, q = envp; *q;
3261
                  gp += sizeof(abi_ulong), q++) {
3262
                if (get_user_ual(addr, gp)
3263
                    || !addr)
3264
                    break;
3265
                unlock_user(*q, addr, 0);
3266
            }
3267
        }
3268
        break;
3269
    case TARGET_NR_chdir:
3270
        if (!(p = lock_user_string(arg1)))
3271
            goto efault;
3272
        ret = get_errno(chdir(p));
3273
        unlock_user(p, arg1, 0);
3274
        break;
3275
#ifdef TARGET_NR_time
3276
    case TARGET_NR_time:
3277
        {
3278
            time_t host_time;
3279
            ret = get_errno(time(&host_time));
3280
            if (!is_error(ret)
3281
                && arg1
3282
                && put_user_sal(host_time, arg1))
3283
                goto efault;
3284
        }
3285
        break;
3286
#endif
3287
    case TARGET_NR_mknod:
3288
        if (!(p = lock_user_string(arg1)))
3289
            goto efault;
3290
        ret = get_errno(mknod(p, arg2, arg3));
3291
        unlock_user(p, arg1, 0);
3292
        break;
3293
#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
3294
    case TARGET_NR_mknodat:
3295
        if (!(p = lock_user_string(arg2)))
3296
            goto efault;
3297
        ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
3298
        unlock_user(p, arg2, 0);
3299
        break;
3300
#endif
3301
    case TARGET_NR_chmod:
3302
        if (!(p = lock_user_string(arg1)))
3303
            goto efault;
3304
        ret = get_errno(chmod(p, arg2));
3305
        unlock_user(p, arg1, 0);
3306
        break;
3307
#ifdef TARGET_NR_break
3308
    case TARGET_NR_break:
3309
        goto unimplemented;
3310
#endif
3311
#ifdef TARGET_NR_oldstat
3312
    case TARGET_NR_oldstat:
3313
        goto unimplemented;
3314
#endif
3315
    case TARGET_NR_lseek:
3316
        ret = get_errno(lseek(arg1, arg2, arg3));
3317
        break;
3318
#ifdef TARGET_NR_getxpid
3319
    case TARGET_NR_getxpid:
3320
#else
3321
    case TARGET_NR_getpid:
3322
#endif
3323
        ret = get_errno(getpid());
3324
        break;
3325
    case TARGET_NR_mount:
3326
                {
3327
                        /* need to look at the data field */
3328
                        void *p2, *p3;
3329
                        p = lock_user_string(arg1);
3330
                        p2 = lock_user_string(arg2);
3331
                        p3 = lock_user_string(arg3);
3332
                        if (!p || !p2 || !p3)
3333
                            ret = -TARGET_EFAULT;
3334
                        else
3335
                            /* FIXME - arg5 should be locked, but it isn't clear how to
3336
                             * do that since it's not guaranteed to be a NULL-terminated
3337
                             * string.
3338
                             */
3339
                            ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
3340
                        unlock_user(p, arg1, 0);
3341
                        unlock_user(p2, arg2, 0);
3342
                        unlock_user(p3, arg3, 0);
3343
                        break;
3344
                }
3345
#ifdef TARGET_NR_umount
3346
    case TARGET_NR_umount:
3347
        if (!(p = lock_user_string(arg1)))
3348
            goto efault;
3349
        ret = get_errno(umount(p));
3350
        unlock_user(p, arg1, 0);
3351
        break;
3352
#endif
3353
#ifdef TARGET_NR_stime /* not on alpha */
3354
    case TARGET_NR_stime:
3355
        {
3356
            time_t host_time;
3357
            if (get_user_sal(host_time, arg1))
3358
                goto efault;
3359
            ret = get_errno(stime(&host_time));
3360
        }
3361
        break;
3362
#endif
3363
    case TARGET_NR_ptrace:
3364
        goto unimplemented;
3365
#ifdef TARGET_NR_alarm /* not on alpha */
3366
    case TARGET_NR_alarm:
3367
        ret = alarm(arg1);
3368
        break;
3369
#endif
3370
#ifdef TARGET_NR_oldfstat
3371
    case TARGET_NR_oldfstat:
3372
        goto unimplemented;
3373
#endif
3374
#ifdef TARGET_NR_pause /* not on alpha */
3375
    case TARGET_NR_pause:
3376
        ret = get_errno(pause());
3377
        break;
3378
#endif
3379
#ifdef TARGET_NR_utime
3380
    case TARGET_NR_utime:
3381
        {
3382
            struct utimbuf tbuf, *host_tbuf;
3383
            struct target_utimbuf *target_tbuf;
3384
            if (arg2) {
3385
                if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
3386
                    goto efault;
3387
                tbuf.actime = tswapl(target_tbuf->actime);
3388
                tbuf.modtime = tswapl(target_tbuf->modtime);
3389
                unlock_user_struct(target_tbuf, arg2, 0);
3390
                host_tbuf = &tbuf;
3391
            } else {
3392
                host_tbuf = NULL;
3393
            }
3394
            if (!(p = lock_user_string(arg1)))
3395
                goto efault;
3396
            ret = get_errno(utime(p, host_tbuf));
3397
            unlock_user(p, arg1, 0);
3398
        }
3399
        break;
3400
#endif
3401
    case TARGET_NR_utimes:
3402
        {
3403
            struct timeval *tvp, tv[2];
3404
            if (arg2) {
3405
                if (copy_from_user_timeval(&tv[0], arg2)
3406
                    || copy_from_user_timeval(&tv[1],
3407
                                              arg2 + sizeof(struct target_timeval)))
3408
                    goto efault;
3409
                tvp = tv;
3410
            } else {
3411
                tvp = NULL;
3412
            }
3413
            if (!(p = lock_user_string(arg1)))
3414
                goto efault;
3415
            ret = get_errno(utimes(p, tvp));
3416
            unlock_user(p, arg1, 0);
3417
        }
3418
        break;
3419
#ifdef TARGET_NR_stty
3420
    case TARGET_NR_stty:
3421
        goto unimplemented;
3422
#endif
3423
#ifdef TARGET_NR_gtty
3424
    case TARGET_NR_gtty:
3425
        goto unimplemented;
3426
#endif
3427
    case TARGET_NR_access:
3428
        if (!(p = lock_user_string(arg1)))
3429
            goto efault;
3430
        ret = get_errno(access(p, arg2));
3431
        unlock_user(p, arg1, 0);
3432
        break;
3433
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
3434
    case TARGET_NR_faccessat:
3435
        if (!(p = lock_user_string(arg2)))
3436
            goto efault;
3437
        ret = get_errno(sys_faccessat(arg1, p, arg3, arg4));
3438
        unlock_user(p, arg2, 0);
3439
        break;
3440
#endif
3441
#ifdef TARGET_NR_nice /* not on alpha */
3442
    case TARGET_NR_nice:
3443
        ret = get_errno(nice(arg1));
3444
        break;
3445
#endif
3446
#ifdef TARGET_NR_ftime
3447
    case TARGET_NR_ftime:
3448
        goto unimplemented;
3449
#endif
3450
    case TARGET_NR_sync:
3451
        sync();
3452
        ret = 0;
3453
        break;
3454
    case TARGET_NR_kill:
3455
        ret = get_errno(kill(arg1, arg2));
3456
        break;
3457
    case TARGET_NR_rename:
3458
        {
3459
            void *p2;
3460
            p = lock_user_string(arg1);
3461
            p2 = lock_user_string(arg2);
3462
            if (!p || !p2)
3463
                ret = -TARGET_EFAULT;
3464
            else
3465
                ret = get_errno(rename(p, p2));
3466
            unlock_user(p2, arg2, 0);
3467
            unlock_user(p, arg1, 0);
3468
        }
3469
        break;
3470
#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
3471
    case TARGET_NR_renameat:
3472
        {
3473
            void *p2;
3474
            p  = lock_user_string(arg2);
3475
            p2 = lock_user_string(arg4);
3476
            if (!p || !p2)
3477
                ret = -TARGET_EFAULT;
3478
            else
3479
                ret = get_errno(sys_renameat(arg1, p, arg3, p2));
3480
            unlock_user(p2, arg4, 0);
3481
            unlock_user(p, arg2, 0);
3482
        }
3483
        break;
3484
#endif
3485
    case TARGET_NR_mkdir:
3486
        if (!(p = lock_user_string(arg1)))
3487
            goto efault;
3488
        ret = get_errno(mkdir(p, arg2));
3489
        unlock_user(p, arg1, 0);
3490
        break;
3491
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
3492
    case TARGET_NR_mkdirat:
3493
        if (!(p = lock_user_string(arg2)))
3494
            goto efault;
3495
        ret = get_errno(sys_mkdirat(arg1, p, arg3));
3496
        unlock_user(p, arg2, 0);
3497
        break;
3498
#endif
3499
    case TARGET_NR_rmdir:
3500
        if (!(p = lock_user_string(arg1)))
3501
            goto efault;
3502
        ret = get_errno(rmdir(p));
3503
        unlock_user(p, arg1, 0);
3504
        break;
3505
    case TARGET_NR_dup:
3506
        ret = get_errno(dup(arg1));
3507
        break;
3508
    case TARGET_NR_pipe:
3509
        {
3510
            int host_pipe[2];
3511
            ret = get_errno(pipe(host_pipe));
3512
            if (!is_error(ret)) {
3513
#if defined(TARGET_MIPS)
3514
                CPUMIPSState *env = (CPUMIPSState*)cpu_env;
3515
                env->gpr[env->current_tc][3] = host_pipe[1];
3516
                ret = host_pipe[0];
3517
#elif defined(TARGET_SH4)
3518
                ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
3519
                ret = host_pipe[0];
3520
#else
3521
                if (put_user_s32(host_pipe[0], arg1)
3522
                    || put_user_s32(host_pipe[1], arg1 + sizeof(host_pipe[0])))
3523
                    goto efault;
3524
#endif
3525
            }
3526
        }
3527
        break;
3528
    case TARGET_NR_times:
3529
        {
3530
            struct target_tms *tmsp;
3531
            struct tms tms;
3532
            ret = get_errno(times(&tms));
3533
            if (arg1) {
3534
                tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
3535
                if (!tmsp)
3536
                    goto efault;
3537
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
3538
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
3539
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
3540
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
3541
            }
3542
            if (!is_error(ret))
3543
                ret = host_to_target_clock_t(ret);
3544
        }
3545
        break;
3546
#ifdef TARGET_NR_prof
3547
    case TARGET_NR_prof:
3548
        goto unimplemented;
3549
#endif
3550
#ifdef TARGET_NR_signal
3551
    case TARGET_NR_signal:
3552
        goto unimplemented;
3553
#endif
3554
    case TARGET_NR_acct:
3555
        if (!(p = lock_user_string(arg1)))
3556
            goto efault;
3557
        ret = get_errno(acct(path(p)));
3558
        unlock_user(p, arg1, 0);
3559
        break;
3560
#ifdef TARGET_NR_umount2 /* not on alpha */
3561
    case TARGET_NR_umount2:
3562
        if (!(p = lock_user_string(arg1)))
3563
            goto efault;
3564
        ret = get_errno(umount2(p, arg2));
3565
        unlock_user(p, arg1, 0);
3566
        break;
3567
#endif
3568
#ifdef TARGET_NR_lock
3569
    case TARGET_NR_lock:
3570
        goto unimplemented;
3571
#endif
3572
    case TARGET_NR_ioctl:
3573
        ret = do_ioctl(arg1, arg2, arg3);
3574
        break;
3575
    case TARGET_NR_fcntl:
3576
        ret = do_fcntl(arg1, arg2, arg3);
3577
        break;
3578
#ifdef TARGET_NR_mpx
3579
    case TARGET_NR_mpx:
3580
        goto unimplemented;
3581
#endif
3582
    case TARGET_NR_setpgid:
3583
        ret = get_errno(setpgid(arg1, arg2));
3584
        break;
3585
#ifdef TARGET_NR_ulimit
3586
    case TARGET_NR_ulimit:
3587
        goto unimplemented;
3588
#endif
3589
#ifdef TARGET_NR_oldolduname
3590
    case TARGET_NR_oldolduname:
3591
        goto unimplemented;
3592
#endif
3593
    case TARGET_NR_umask:
3594
        ret = get_errno(umask(arg1));
3595
        break;
3596
    case TARGET_NR_chroot:
3597
        if (!(p = lock_user_string(arg1)))
3598
            goto efault;
3599
        ret = get_errno(chroot(p));
3600
        unlock_user(p, arg1, 0);
3601
        break;
3602
    case TARGET_NR_ustat:
3603
        goto unimplemented;
3604
    case TARGET_NR_dup2:
3605
        ret = get_errno(dup2(arg1, arg2));
3606
        break;
3607
#ifdef TARGET_NR_getppid /* not on alpha */
3608
    case TARGET_NR_getppid:
3609
        ret = get_errno(getppid());
3610
        break;
3611
#endif
3612
    case TARGET_NR_getpgrp:
3613
        ret = get_errno(getpgrp());
3614
        break;
3615
    case TARGET_NR_setsid:
3616
        ret = get_errno(setsid());
3617
        break;
3618
#ifdef TARGET_NR_sigaction
3619
    case TARGET_NR_sigaction:
3620
        {
3621
#if !defined(TARGET_MIPS)
3622
            struct target_old_sigaction *old_act;
3623
            struct target_sigaction act, oact, *pact;
3624
            if (arg2) {
3625
                if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
3626
                    goto efault;
3627
                act._sa_handler = old_act->_sa_handler;
3628
                target_siginitset(&act.sa_mask, old_act->sa_mask);
3629
                act.sa_flags = old_act->sa_flags;
3630
                act.sa_restorer = old_act->sa_restorer;
3631
                unlock_user_struct(old_act, arg2, 0);
3632
                pact = &act;
3633
            } else {
3634
                pact = NULL;
3635
            }
3636
            ret = get_errno(do_sigaction(arg1, pact, &oact));
3637
            if (!is_error(ret) && arg3) {
3638
                if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
3639
                    goto efault;
3640
                old_act->_sa_handler = oact._sa_handler;
3641
                old_act->sa_mask = oact.sa_mask.sig[0];
3642
                old_act->sa_flags = oact.sa_flags;
3643
                old_act->sa_restorer = oact.sa_restorer;
3644
                unlock_user_struct(old_act, arg3, 1);
3645
            }
3646
#else
3647
            struct target_sigaction act, oact, *pact, *old_act;
3648

    
3649
            if (arg2) {
3650
                if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
3651
                    goto efault;
3652
                act._sa_handler = old_act->_sa_handler;
3653
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
3654
                act.sa_flags = old_act->sa_flags;
3655
                unlock_user_struct(old_act, arg2, 0);
3656
                pact = &act;
3657
            } else {
3658
                pact = NULL;
3659
            }
3660

    
3661
            ret = get_errno(do_sigaction(arg1, pact, &oact));
3662

    
3663
            if (!is_error(ret) && arg3) {
3664
                if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
3665
                    goto efault;
3666
                old_act->_sa_handler = oact._sa_handler;
3667
                old_act->sa_flags = oact.sa_flags;
3668
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
3669
                old_act->sa_mask.sig[1] = 0;
3670
                old_act->sa_mask.sig[2] = 0;
3671
                old_act->sa_mask.sig[3] = 0;
3672
                unlock_user_struct(old_act, arg3, 1);
3673
            }
3674
#endif
3675
        }
3676
        break;
3677
#endif
3678
    case TARGET_NR_rt_sigaction:
3679
        {
3680
            struct target_sigaction *act;
3681
            struct target_sigaction *oact;
3682

    
3683
            if (arg2) {
3684
                if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
3685
                    goto efault;
3686
            } else
3687
                act = NULL;
3688
            if (arg3) {
3689
                if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
3690
                    ret = -TARGET_EFAULT;
3691
                    goto rt_sigaction_fail;
3692
                }
3693
            } else
3694
                oact = NULL;
3695
            ret = get_errno(do_sigaction(arg1, act, oact));
3696
        rt_sigaction_fail:
3697
            if (act)
3698
                unlock_user_struct(act, arg2, 0);
3699
            if (oact)
3700
                unlock_user_struct(oact, arg3, 1);
3701
        }
3702
        break;
3703
#ifdef TARGET_NR_sgetmask /* not on alpha */
3704
    case TARGET_NR_sgetmask:
3705
        {
3706
            sigset_t cur_set;
3707
            abi_ulong target_set;
3708
            sigprocmask(0, NULL, &cur_set);
3709
            host_to_target_old_sigset(&target_set, &cur_set);
3710
            ret = target_set;
3711
        }
3712
        break;
3713
#endif
3714
#ifdef TARGET_NR_ssetmask /* not on alpha */
3715
    case TARGET_NR_ssetmask:
3716
        {
3717
            sigset_t set, oset, cur_set;
3718
            abi_ulong target_set = arg1;
3719
            sigprocmask(0, NULL, &cur_set);
3720
            target_to_host_old_sigset(&set, &target_set);
3721
            sigorset(&set, &set, &cur_set);
3722
            sigprocmask(SIG_SETMASK, &set, &oset);
3723
            host_to_target_old_sigset(&target_set, &oset);
3724
            ret = target_set;
3725
        }
3726
        break;
3727
#endif
3728
#ifdef TARGET_NR_sigprocmask
3729
    case TARGET_NR_sigprocmask:
3730
        {
3731
            int how = arg1;
3732
            sigset_t set, oldset, *set_ptr;
3733

    
3734
            if (arg2) {
3735
                switch(how) {
3736
                case TARGET_SIG_BLOCK:
3737
                    how = SIG_BLOCK;
3738
                    break;
3739
                case TARGET_SIG_UNBLOCK:
3740
                    how = SIG_UNBLOCK;
3741
                    break;
3742
                case TARGET_SIG_SETMASK:
3743
                    how = SIG_SETMASK;
3744
                    break;
3745
                default:
3746
                    ret = -TARGET_EINVAL;
3747
                    goto fail;
3748
                }
3749
                if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
3750
                    goto efault;
3751
                target_to_host_old_sigset(&set, p);
3752
                unlock_user(p, arg2, 0);
3753
                set_ptr = &set;
3754
            } else {
3755
                how = 0;
3756
                set_ptr = NULL;
3757
            }
3758
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
3759
            if (!is_error(ret) && arg3) {
3760
                if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
3761
                    goto efault;
3762
                host_to_target_old_sigset(p, &oldset);
3763
                unlock_user(p, arg3, sizeof(target_sigset_t));
3764
            }
3765
        }
3766
        break;
3767
#endif
3768
    case TARGET_NR_rt_sigprocmask:
3769
        {
3770
            int how = arg1;
3771
            sigset_t set, oldset, *set_ptr;
3772

    
3773
            if (arg2) {
3774
                switch(how) {
3775
                case TARGET_SIG_BLOCK:
3776
                    how = SIG_BLOCK;
3777
                    break;
3778
                case TARGET_SIG_UNBLOCK:
3779
                    how = SIG_UNBLOCK;
3780
                    break;
3781
                case TARGET_SIG_SETMASK:
3782
                    how = SIG_SETMASK;
3783
                    break;
3784
                default:
3785
                    ret = -TARGET_EINVAL;
3786
                    goto fail;
3787
                }
3788
                if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
3789
                    goto efault;
3790
                target_to_host_sigset(&set, p);
3791
                unlock_user(p, arg2, 0);
3792
                set_ptr = &set;
3793
            } else {
3794
                how = 0;
3795
                set_ptr = NULL;
3796
            }
3797
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
3798
            if (!is_error(ret) && arg3) {
3799
                if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
3800
                    goto efault;
3801
                host_to_target_sigset(p, &oldset);
3802
                unlock_user(p, arg3, sizeof(target_sigset_t));
3803
            }
3804
        }
3805
        break;
3806
#ifdef TARGET_NR_sigpending
3807
    case TARGET_NR_sigpending:
3808
        {
3809
            sigset_t set;
3810
            ret = get_errno(sigpending(&set));
3811
            if (!is_error(ret)) {
3812
                if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
3813
                    goto efault;
3814
                host_to_target_old_sigset(p, &set);
3815
                unlock_user(p, arg1, sizeof(target_sigset_t));
3816
            }
3817
        }
3818
        break;
3819
#endif
3820
    case TARGET_NR_rt_sigpending:
3821
        {
3822
            sigset_t set;
3823
            ret = get_errno(sigpending(&set));
3824
            if (!is_error(ret)) {
3825
                if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
3826
                    goto efault;
3827
                host_to_target_sigset(p, &set);
3828
                unlock_user(p, arg1, sizeof(target_sigset_t));
3829
            }
3830
        }
3831
        break;
3832
#ifdef TARGET_NR_sigsuspend
3833
    case TARGET_NR_sigsuspend:
3834
        {
3835
            sigset_t set;
3836
            if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
3837
                goto efault;
3838
            target_to_host_old_sigset(&set, p);
3839
            unlock_user(p, arg1, 0);
3840
            ret = get_errno(sigsuspend(&set));
3841
        }
3842
        break;
3843
#endif
3844
    case TARGET_NR_rt_sigsuspend:
3845
        {
3846
            sigset_t set;
3847
            if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
3848
                goto efault;
3849
            target_to_host_sigset(&set, p);
3850
            unlock_user(p, arg1, 0);
3851
            ret = get_errno(sigsuspend(&set));
3852
        }
3853
        break;
3854
    case TARGET_NR_rt_sigtimedwait:
3855
        {
3856
            sigset_t set;
3857
            struct timespec uts, *puts;
3858
            siginfo_t uinfo;
3859

    
3860
            if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
3861
                goto efault;
3862
            target_to_host_sigset(&set, p);
3863
            unlock_user(p, arg1, 0);
3864
            if (arg3) {
3865
                puts = &uts;
3866
                target_to_host_timespec(puts, arg3);
3867
            } else {
3868
                puts = NULL;
3869
            }
3870
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
3871
            if (!is_error(ret) && arg2) {
3872
                if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_sigset_t), 0)))
3873
                    goto efault;
3874
                host_to_target_siginfo(p, &uinfo);
3875
                unlock_user(p, arg2, sizeof(target_sigset_t));
3876
            }
3877
        }
3878
        break;
3879
    case TARGET_NR_rt_sigqueueinfo:
3880
        {
3881
            siginfo_t uinfo;
3882
            if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
3883
                goto efault;
3884
            target_to_host_siginfo(&uinfo, p);
3885
            unlock_user(p, arg1, 0);
3886
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
3887
        }
3888
        break;
3889
#ifdef TARGET_NR_sigreturn
3890
    case TARGET_NR_sigreturn:
3891
        /* NOTE: ret is eax, so not transcoding must be done */
3892
        ret = do_sigreturn(cpu_env);
3893
        break;
3894
#endif
3895
    case TARGET_NR_rt_sigreturn:
3896
        /* NOTE: ret is eax, so not transcoding must be done */
3897
        ret = do_rt_sigreturn(cpu_env);
3898
        break;
3899
    case TARGET_NR_sethostname:
3900
        if (!(p = lock_user_string(arg1)))
3901
            goto efault;
3902
        ret = get_errno(sethostname(p, arg2));
3903
        unlock_user(p, arg1, 0);
3904
        break;
3905
    case TARGET_NR_setrlimit:
3906
        {
3907
            /* XXX: convert resource ? */
3908
            int resource = arg1;
3909
            struct target_rlimit *target_rlim;
3910
            struct rlimit rlim;
3911
            if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
3912
                goto efault;
3913
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3914
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
3915
            unlock_user_struct(target_rlim, arg2, 0);
3916
            ret = get_errno(setrlimit(resource, &rlim));
3917
        }
3918
        break;
3919
    case TARGET_NR_getrlimit:
3920
        {
3921
            /* XXX: convert resource ? */
3922
            int resource = arg1;
3923
            struct target_rlimit *target_rlim;
3924
            struct rlimit rlim;
3925

    
3926
            ret = get_errno(getrlimit(resource, &rlim));
3927
            if (!is_error(ret)) {
3928
                if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
3929
                    goto efault;
3930
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3931
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
3932
                unlock_user_struct(target_rlim, arg2, 1);
3933
            }
3934
        }
3935
        break;
3936
    case TARGET_NR_getrusage:
3937
        {
3938
            struct rusage rusage;
3939
            ret = get_errno(getrusage(arg1, &rusage));
3940
            if (!is_error(ret)) {
3941
                host_to_target_rusage(arg2, &rusage);
3942
            }
3943
        }
3944
        break;
3945
    case TARGET_NR_gettimeofday:
3946
        {
3947
            struct timeval tv;
3948
            ret = get_errno(gettimeofday(&tv, NULL));
3949
            if (!is_error(ret)) {
3950
                if (copy_to_user_timeval(arg1, &tv))
3951
                    goto efault;
3952
            }
3953
        }
3954
        break;
3955
    case TARGET_NR_settimeofday:
3956
        {
3957
            struct timeval tv;
3958
            if (copy_from_user_timeval(&tv, arg1))
3959
                goto efault;
3960
            ret = get_errno(settimeofday(&tv, NULL));
3961
        }
3962
        break;
3963
#ifdef TARGET_NR_select
3964
    case TARGET_NR_select:
3965
        {
3966
            struct target_sel_arg_struct *sel;
3967
            abi_ulong inp, outp, exp, tvp;
3968
            long nsel;
3969

    
3970
            if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
3971
                goto efault;
3972
            nsel = tswapl(sel->n);
3973
            inp = tswapl(sel->inp);
3974
            outp = tswapl(sel->outp);
3975
            exp = tswapl(sel->exp);
3976
            tvp = tswapl(sel->tvp);
3977
            unlock_user_struct(sel, arg1, 0);
3978
            ret = do_select(nsel, inp, outp, exp, tvp);
3979
        }
3980
        break;
3981
#endif
3982
    case TARGET_NR_symlink:
3983
        {
3984
            void *p2;
3985
            p = lock_user_string(arg1);
3986
            p2 = lock_user_string(arg2);
3987
            if (!p || !p2)
3988
                ret = -TARGET_EFAULT;
3989
            else
3990
                ret = get_errno(symlink(p, p2));
3991
            unlock_user(p2, arg2, 0);
3992
            unlock_user(p, arg1, 0);
3993
        }
3994
        break;
3995
#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
3996
    case TARGET_NR_symlinkat:
3997
        {
3998
            void *p2;
3999
            p  = lock_user_string(arg1);
4000
            p2 = lock_user_string(arg3);
4001
            if (!p || !p2)
4002
                ret = -TARGET_EFAULT;
4003
            else
4004
                ret = get_errno(sys_symlinkat(p, arg2, p2));
4005
            unlock_user(p2, arg3, 0);
4006
            unlock_user(p, arg1, 0);
4007
        }
4008
        break;
4009
#endif
4010
#ifdef TARGET_NR_oldlstat
4011
    case TARGET_NR_oldlstat:
4012
        goto unimplemented;
4013
#endif
4014
    case TARGET_NR_readlink:
4015
        {
4016
            void *p2;
4017
            p = lock_user_string(arg1);
4018
            p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
4019
            if (!p || !p2)
4020
                ret = -TARGET_EFAULT;
4021
            else
4022
                ret = get_errno(readlink(path(p), p2, arg3));
4023
            unlock_user(p2, arg2, ret);
4024
            unlock_user(p, arg1, 0);
4025
        }
4026
        break;
4027
#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
4028
    case TARGET_NR_readlinkat:
4029
        {
4030
            void *p2;
4031
            p  = lock_user_string(arg2);
4032
            p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
4033
            if (!p || !p2)
4034
                ret = -TARGET_EFAULT;
4035
            else
4036
                ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
4037
            unlock_user(p2, arg3, ret);
4038
            unlock_user(p, arg2, 0);
4039
        }
4040
        break;
4041
#endif
4042
#ifdef TARGET_NR_uselib
4043
    case TARGET_NR_uselib:
4044
        goto unimplemented;
4045
#endif
4046
#ifdef TARGET_NR_swapon
4047
    case TARGET_NR_swapon:
4048
        if (!(p = lock_user_string(arg1)))
4049
            goto efault;
4050
        ret = get_errno(swapon(p, arg2));
4051
        unlock_user(p, arg1, 0);
4052
        break;
4053
#endif
4054
    case TARGET_NR_reboot:
4055
        goto unimplemented;
4056
#ifdef TARGET_NR_readdir
4057
    case TARGET_NR_readdir:
4058
        goto unimplemented;
4059
#endif
4060
#ifdef TARGET_NR_mmap
4061
    case TARGET_NR_mmap:
4062
#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS)
4063
        {
4064
            abi_ulong *v;
4065
            abi_ulong v1, v2, v3, v4, v5, v6;
4066
            if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
4067
                goto efault;
4068
            v1 = tswapl(v[0]);
4069
            v2 = tswapl(v[1]);
4070
            v3 = tswapl(v[2]);
4071
            v4 = tswapl(v[3]);
4072
            v5 = tswapl(v[4]);
4073
            v6 = tswapl(v[5]);
4074
            unlock_user(v, arg1, 0);
4075
            ret = get_errno(target_mmap(v1, v2, v3,
4076
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
4077
                                        v5, v6));
4078
        }
4079
#else
4080
        ret = get_errno(target_mmap(arg1, arg2, arg3,
4081
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
4082
                                    arg5,
4083
                                    arg6));
4084
#endif
4085
        break;
4086
#endif
4087
#ifdef TARGET_NR_mmap2
4088
    case TARGET_NR_mmap2:
4089
#ifndef MMAP_SHIFT
4090
#define MMAP_SHIFT 12
4091
#endif
4092
        ret = get_errno(target_mmap(arg1, arg2, arg3,
4093
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
4094
                                    arg5,
4095
                                    arg6 << MMAP_SHIFT));
4096
        break;
4097
#endif
4098
    case TARGET_NR_munmap:
4099
        ret = get_errno(target_munmap(arg1, arg2));
4100
        break;
4101
    case TARGET_NR_mprotect:
4102
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
4103
        break;
4104
#ifdef TARGET_NR_mremap
4105
    case TARGET_NR_mremap:
4106
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
4107
        break;
4108
#endif
4109
        /* ??? msync/mlock/munlock are broken for softmmu.  */
4110
#ifdef TARGET_NR_msync
4111
    case TARGET_NR_msync:
4112
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
4113
        break;
4114
#endif
4115
#ifdef TARGET_NR_mlock
4116
    case TARGET_NR_mlock:
4117
        ret = get_errno(mlock(g2h(arg1), arg2));
4118
        break;
4119
#endif
4120
#ifdef TARGET_NR_munlock
4121
    case TARGET_NR_munlock:
4122
        ret = get_errno(munlock(g2h(arg1), arg2));
4123
        break;
4124
#endif
4125
#ifdef TARGET_NR_mlockall
4126
    case TARGET_NR_mlockall:
4127
        ret = get_errno(mlockall(arg1));
4128
        break;
4129
#endif
4130
#ifdef TARGET_NR_munlockall
4131
    case TARGET_NR_munlockall:
4132
        ret = get_errno(munlockall());
4133
        break;
4134
#endif
4135
    case TARGET_NR_truncate:
4136
        if (!(p = lock_user_string(arg1)))
4137
            goto efault;
4138
        ret = get_errno(truncate(p, arg2));
4139
        unlock_user(p, arg1, 0);
4140
        break;
4141
    case TARGET_NR_ftruncate:
4142
        ret = get_errno(ftruncate(arg1, arg2));
4143
        break;
4144
    case TARGET_NR_fchmod:
4145
        ret = get_errno(fchmod(arg1, arg2));
4146
        break;
4147
#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
4148
    case TARGET_NR_fchmodat:
4149
        if (!(p = lock_user_string(arg2)))
4150
            goto efault;
4151
        ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4));
4152
        unlock_user(p, arg2, 0);
4153
        break;
4154
#endif
4155
    case TARGET_NR_getpriority:
4156
        /* libc does special remapping of the return value of
4157
         * sys_getpriority() so it's just easiest to call
4158
         * sys_getpriority() directly rather than through libc. */
4159
        ret = sys_getpriority(arg1, arg2);
4160
        break;
4161
    case TARGET_NR_setpriority:
4162
        ret = get_errno(setpriority(arg1, arg2, arg3));
4163
        break;
4164
#ifdef TARGET_NR_profil
4165
    case TARGET_NR_profil:
4166
        goto unimplemented;
4167
#endif
4168
    case TARGET_NR_statfs:
4169
        if (!(p = lock_user_string(arg1)))
4170
            goto efault;
4171
        ret = get_errno(statfs(path(p), &stfs));
4172
        unlock_user(p, arg1, 0);
4173
    convert_statfs:
4174
        if (!is_error(ret)) {
4175
            struct target_statfs *target_stfs;
4176

    
4177
            if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
4178
                goto efault;
4179
            __put_user(stfs.f_type, &target_stfs->f_type);
4180
            __put_user(stfs.f_bsize, &target_stfs->f_bsize);
4181
            __put_user(stfs.f_blocks, &target_stfs->f_blocks);
4182
            __put_user(stfs.f_bfree, &target_stfs->f_bfree);
4183
            __put_user(stfs.f_bavail, &target_stfs->f_bavail);
4184
            __put_user(stfs.f_files, &target_stfs->f_files);
4185
            __put_user(stfs.f_ffree, &target_stfs->f_ffree);
4186
            __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
4187
            __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
4188
            __put_user(stfs.f_namelen, &target_stfs->f_namelen);
4189
            unlock_user_struct(target_stfs, arg2, 1);
4190
        }
4191
        break;
4192
    case TARGET_NR_fstatfs:
4193
        ret = get_errno(fstatfs(arg1, &stfs));
4194
        goto convert_statfs;
4195
#ifdef TARGET_NR_statfs64
4196
    case TARGET_NR_statfs64:
4197
        if (!(p = lock_user_string(arg1)))
4198
            goto efault;
4199
        ret = get_errno(statfs(path(p), &stfs));
4200
        unlock_user(p, arg1, 0);
4201
    convert_statfs64:
4202
        if (!is_error(ret)) {
4203
            struct target_statfs64 *target_stfs;
4204

    
4205
            if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
4206
                goto efault;
4207
            __put_user(stfs.f_type, &target_stfs->f_type);
4208
            __put_user(stfs.f_bsize, &target_stfs->f_bsize);
4209
            __put_user(stfs.f_blocks, &target_stfs->f_blocks);
4210
            __put_user(stfs.f_bfree, &target_stfs->f_bfree);
4211
            __put_user(stfs.f_bavail, &target_stfs->f_bavail);
4212
            __put_user(stfs.f_files, &target_stfs->f_files);
4213
            __put_user(stfs.f_ffree, &target_stfs->f_ffree);
4214
            __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
4215
            __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
4216
            __put_user(stfs.f_namelen, &target_stfs->f_namelen);
4217
            unlock_user_struct(target_stfs, arg3, 1);
4218
        }
4219
        break;
4220
    case TARGET_NR_fstatfs64:
4221
        ret = get_errno(fstatfs(arg1, &stfs));
4222
        goto convert_statfs64;
4223
#endif
4224
#ifdef TARGET_NR_ioperm
4225
    case TARGET_NR_ioperm:
4226
        goto unimplemented;
4227
#endif
4228
#ifdef TARGET_NR_socketcall
4229
    case TARGET_NR_socketcall:
4230
        ret = do_socketcall(arg1, arg2);
4231
        break;
4232
#endif
4233
#ifdef TARGET_NR_accept
4234
    case TARGET_NR_accept:
4235
        ret = do_accept(arg1, arg2, arg3);
4236
        break;
4237
#endif
4238
#ifdef TARGET_NR_bind
4239
    case TARGET_NR_bind:
4240
        ret = do_bind(arg1, arg2, arg3);
4241
        break;
4242
#endif
4243
#ifdef TARGET_NR_connect
4244
    case TARGET_NR_connect:
4245
        ret = do_connect(arg1, arg2, arg3);
4246
        break;
4247
#endif
4248
#ifdef TARGET_NR_getpeername
4249
    case TARGET_NR_getpeername:
4250
        ret = do_getpeername(arg1, arg2, arg3);
4251
        break;
4252
#endif
4253
#ifdef TARGET_NR_getsockname
4254
    case TARGET_NR_getsockname:
4255
        ret = do_getsockname(arg1, arg2, arg3);
4256
        break;
4257
#endif
4258
#ifdef TARGET_NR_getsockopt
4259
    case TARGET_NR_getsockopt:
4260
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
4261
        break;
4262
#endif
4263
#ifdef TARGET_NR_listen
4264
    case TARGET_NR_listen:
4265
        ret = get_errno(listen(arg1, arg2));
4266
        break;
4267
#endif
4268
#ifdef TARGET_NR_recv
4269
    case TARGET_NR_recv:
4270
        ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
4271
        break;
4272
#endif
4273
#ifdef TARGET_NR_recvfrom
4274
    case TARGET_NR_recvfrom:
4275
        ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
4276
        break;
4277
#endif
4278
#ifdef TARGET_NR_recvmsg
4279
    case TARGET_NR_recvmsg:
4280
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
4281
        break;
4282
#endif
4283
#ifdef TARGET_NR_send
4284
    case TARGET_NR_send:
4285
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
4286
        break;
4287
#endif
4288
#ifdef TARGET_NR_sendmsg
4289
    case TARGET_NR_sendmsg:
4290
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
4291
        break;
4292
#endif
4293
#ifdef TARGET_NR_sendto
4294
    case TARGET_NR_sendto:
4295
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
4296
        break;
4297
#endif
4298
#ifdef TARGET_NR_shutdown
4299
    case TARGET_NR_shutdown:
4300
        ret = get_errno(shutdown(arg1, arg2));
4301
        break;
4302
#endif
4303
#ifdef TARGET_NR_socket
4304
    case TARGET_NR_socket:
4305
        ret = do_socket(arg1, arg2, arg3);
4306
        break;
4307
#endif
4308
#ifdef TARGET_NR_socketpair
4309
    case TARGET_NR_socketpair:
4310
        ret = do_socketpair(arg1, arg2, arg3, arg4);
4311
        break;
4312
#endif
4313
#ifdef TARGET_NR_setsockopt
4314
    case TARGET_NR_setsockopt:
4315
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
4316
        break;
4317
#endif
4318

    
4319
    case TARGET_NR_syslog:
4320
        if (!(p = lock_user_string(arg2)))
4321
            goto efault;
4322
        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
4323
        unlock_user(p, arg2, 0);
4324
        break;
4325

    
4326
    case TARGET_NR_setitimer:
4327
        {
4328
            struct itimerval value, ovalue, *pvalue;
4329

    
4330
            if (arg2) {
4331
                pvalue = &value;
4332
                if (copy_from_user_timeval(&pvalue->it_interval, arg2)
4333
                    || copy_from_user_timeval(&pvalue->it_value,
4334
                                              arg2 + sizeof(struct target_timeval)))
4335
                    goto efault;
4336
            } else {
4337
                pvalue = NULL;
4338
            }
4339
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
4340
            if (!is_error(ret) && arg3) {
4341
                if (copy_to_user_timeval(arg3,
4342
                                         &ovalue.it_interval)
4343
                    || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
4344
                                            &ovalue.it_value))
4345
                    goto efault;
4346
            }
4347
        }
4348
        break;
4349
    case TARGET_NR_getitimer:
4350
        {
4351
            struct itimerval value;
4352

    
4353
            ret = get_errno(getitimer(arg1, &value));
4354
            if (!is_error(ret) && arg2) {
4355
                if (copy_to_user_timeval(arg2,
4356
                                         &value.it_interval)
4357
                    || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
4358
                                            &value.it_value))
4359
                    goto efault;
4360
            }
4361
        }
4362
        break;
4363
    case TARGET_NR_stat:
4364
        if (!(p = lock_user_string(arg1)))
4365
            goto efault;
4366
        ret = get_errno(stat(path(p), &st));
4367
        unlock_user(p, arg1, 0);
4368
        goto do_stat;
4369
    case TARGET_NR_lstat:
4370
        if (!(p = lock_user_string(arg1)))
4371
            goto efault;
4372
        ret = get_errno(lstat(path(p), &st));
4373
        unlock_user(p, arg1, 0);
4374
        goto do_stat;
4375
    case TARGET_NR_fstat:
4376
        {
4377
            ret = get_errno(fstat(arg1, &st));
4378
        do_stat:
4379
            if (!is_error(ret)) {
4380
                struct target_stat *target_st;
4381

    
4382
                if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
4383
                    goto efault;
4384
                __put_user(st.st_dev, &target_st->st_dev);
4385
                __put_user(st.st_ino, &target_st->st_ino);
4386
                __put_user(st.st_mode, &target_st->st_mode);
4387
                __put_user(st.st_uid, &target_st->st_uid);
4388
                __put_user(st.st_gid, &target_st->st_gid);
4389
                __put_user(st.st_nlink, &target_st->st_nlink);
4390
                __put_user(st.st_rdev, &target_st->st_rdev);
4391
                __put_user(st.st_size, &target_st->st_size);
4392
                __put_user(st.st_blksize, &target_st->st_blksize);
4393
                __put_user(st.st_blocks, &target_st->st_blocks);
4394
                __put_user(st.st_atime, &target_st->target_st_atime);
4395
                __put_user(st.st_mtime, &target_st->target_st_mtime);
4396
                __put_user(st.st_ctime, &target_st->target_st_ctime);
4397
                unlock_user_struct(target_st, arg2, 1);
4398
            }
4399
        }
4400
        break;
4401
#ifdef TARGET_NR_olduname
4402
    case TARGET_NR_olduname:
4403
        goto unimplemented;
4404
#endif
4405
#ifdef TARGET_NR_iopl
4406
    case TARGET_NR_iopl:
4407
        goto unimplemented;
4408
#endif
4409
    case TARGET_NR_vhangup:
4410
        ret = get_errno(vhangup());
4411
        break;
4412
#ifdef TARGET_NR_idle
4413
    case TARGET_NR_idle:
4414
        goto unimplemented;
4415
#endif
4416
#ifdef TARGET_NR_syscall
4417
    case TARGET_NR_syscall:
4418
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
4419
            break;
4420
#endif
4421
    case TARGET_NR_wait4:
4422
        {
4423
            int status;
4424
            abi_long status_ptr = arg2;
4425
            struct rusage rusage, *rusage_ptr;
4426
            abi_ulong target_rusage = arg4;
4427
            if (target_rusage)
4428
                rusage_ptr = &rusage;
4429
            else
4430
                rusage_ptr = NULL;
4431
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
4432
            if (!is_error(ret)) {
4433
                if (status_ptr) {
4434
                    if (put_user_s32(status, status_ptr))
4435
                        goto efault;
4436
                }
4437
                if (target_rusage)
4438
                    host_to_target_rusage(target_rusage, &rusage);
4439
            }
4440
        }
4441
        break;
4442
#ifdef TARGET_NR_swapoff
4443
    case TARGET_NR_swapoff:
4444
        if (!(p = lock_user_string(arg1)))
4445
            goto efault;
4446
        ret = get_errno(swapoff(p));
4447
        unlock_user(p, arg1, 0);
4448
        break;
4449
#endif
4450
    case TARGET_NR_sysinfo:
4451
        {
4452
            struct target_sysinfo *target_value;
4453
            struct sysinfo value;
4454
            ret = get_errno(sysinfo(&value));
4455
            if (!is_error(ret) && arg1)
4456
            {
4457
                if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
4458
                    goto efault;
4459
                __put_user(value.uptime, &target_value->uptime);
4460
                __put_user(value.loads[0], &target_value->loads[0]);
4461
                __put_user(value.loads[1], &target_value->loads[1]);
4462
                __put_user(value.loads[2], &target_value->loads[2]);
4463
                __put_user(value.totalram, &target_value->totalram);
4464
                __put_user(value.freeram, &target_value->freeram);
4465
                __put_user(value.sharedram, &target_value->sharedram);
4466
                __put_user(value.bufferram, &target_value->bufferram);
4467
                __put_user(value.totalswap, &target_value->totalswap);
4468
                __put_user(value.freeswap, &target_value->freeswap);
4469
                __put_user(value.procs, &target_value->procs);
4470
                __put_user(value.totalhigh, &target_value->totalhigh);
4471
                __put_user(value.freehigh, &target_value->freehigh);
4472
                __put_user(value.mem_unit, &target_value->mem_unit);
4473
                unlock_user_struct(target_value, arg1, 1);
4474
            }
4475
        }
4476
        break;
4477
#ifdef TARGET_NR_ipc
4478
    case TARGET_NR_ipc:
4479
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
4480
        break;
4481
#endif
4482
    case TARGET_NR_fsync:
4483
        ret = get_errno(fsync(arg1));
4484
        break;
4485
    case TARGET_NR_clone:
4486
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
4487
        break;
4488
#ifdef __NR_exit_group
4489
        /* new thread calls */
4490
    case TARGET_NR_exit_group:
4491
        gdb_exit(cpu_env, arg1);
4492
        ret = get_errno(exit_group(arg1));
4493
        break;
4494
#endif
4495
    case TARGET_NR_setdomainname:
4496
        if (!(p = lock_user_string(arg1)))
4497
            goto efault;
4498
        ret = get_errno(setdomainname(p, arg2));
4499
        unlock_user(p, arg1, 0);
4500
        break;
4501
    case TARGET_NR_uname:
4502
        /* no need to transcode because we use the linux syscall */
4503
        {
4504
            struct new_utsname * buf;
4505

    
4506
            if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
4507
                goto efault;
4508
            ret = get_errno(sys_uname(buf));
4509
            if (!is_error(ret)) {
4510
                /* Overrite the native machine name with whatever is being
4511
                   emulated. */
4512
                strcpy (buf->machine, UNAME_MACHINE);
4513
                /* Allow the user to override the reported release.  */
4514
                if (qemu_uname_release && *qemu_uname_release)
4515
                  strcpy (buf->release, qemu_uname_release);
4516
            }
4517
            unlock_user_struct(buf, arg1, 1);
4518
        }
4519
        break;
4520
#ifdef TARGET_I386
4521
    case TARGET_NR_modify_ldt:
4522
        ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
4523
        break;
4524
#if !defined(TARGET_X86_64)
4525
    case TARGET_NR_vm86old:
4526
        goto unimplemented;
4527
    case TARGET_NR_vm86:
4528
        ret = do_vm86(cpu_env, arg1, arg2);
4529
        break;
4530
#endif
4531
#endif
4532
    case TARGET_NR_adjtimex:
4533
        goto unimplemented;
4534
#ifdef TARGET_NR_create_module
4535
    case TARGET_NR_create_module:
4536
#endif
4537
    case TARGET_NR_init_module:
4538
    case TARGET_NR_delete_module:
4539
#ifdef TARGET_NR_get_kernel_syms
4540
    case TARGET_NR_get_kernel_syms:
4541
#endif
4542
        goto unimplemented;
4543
    case TARGET_NR_quotactl:
4544
        goto unimplemented;
4545
    case TARGET_NR_getpgid:
4546
        ret = get_errno(getpgid(arg1));
4547
        break;
4548
    case TARGET_NR_fchdir:
4549
        ret = get_errno(fchdir(arg1));
4550
        break;
4551
#ifdef TARGET_NR_bdflush /* not on x86_64 */
4552
    case TARGET_NR_bdflush:
4553
        goto unimplemented;
4554
#endif
4555
#ifdef TARGET_NR_sysfs
4556
    case TARGET_NR_sysfs:
4557
        goto unimplemented;
4558
#endif
4559
    case TARGET_NR_personality:
4560
        ret = get_errno(personality(arg1));
4561
        break;
4562
#ifdef TARGET_NR_afs_syscall
4563
    case TARGET_NR_afs_syscall:
4564
        goto unimplemented;
4565
#endif
4566
#ifdef TARGET_NR__llseek /* Not on alpha */
4567
    case TARGET_NR__llseek:
4568
        {
4569
#if defined (__x86_64__)
4570
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
4571
            if (put_user_s64(ret, arg4))
4572
                goto efault;
4573
#else
4574
            int64_t res;
4575
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4576
            if (put_user_s64(res, arg4))
4577
                goto efault;
4578
#endif
4579
        }
4580
        break;
4581
#endif
4582
    case TARGET_NR_getdents:
4583
#if TARGET_ABI_BITS != 32
4584
        goto unimplemented;
4585
#elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4586
        {
4587
            struct target_dirent *target_dirp;
4588
            struct dirent *dirp;
4589
            abi_long count = arg3;
4590

    
4591
            dirp = malloc(count);
4592
            if (!dirp) {
4593
                ret = -TARGET_ENOMEM;
4594
                goto fail;
4595
            }
4596

    
4597
            ret = get_errno(sys_getdents(arg1, dirp, count));
4598
            if (!is_error(ret)) {
4599
                struct dirent *de;
4600
                struct target_dirent *tde;
4601
                int len = ret;
4602
                int reclen, treclen;
4603
                int count1, tnamelen;
4604

    
4605
                count1 = 0;
4606
                de = dirp;
4607
                if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
4608
                    goto efault;
4609
                tde = target_dirp;
4610
                while (len > 0) {
4611
                    reclen = de->d_reclen;
4612
                    treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
4613
                    tde->d_reclen = tswap16(treclen);
4614
                    tde->d_ino = tswapl(de->d_ino);
4615
                    tde->d_off = tswapl(de->d_off);
4616
                    tnamelen = treclen - (2 * sizeof(abi_long) + 2);
4617
                    if (tnamelen > 256)
4618
                        tnamelen = 256;
4619
                    /* XXX: may not be correct */
4620
                    strncpy(tde->d_name, de->d_name, tnamelen);
4621
                    de = (struct dirent *)((char *)de + reclen);
4622
                    len -= reclen;
4623
                    tde = (struct target_dirent *)((char *)tde + treclen);
4624
                    count1 += treclen;
4625
                }
4626
                ret = count1;
4627
                unlock_user(target_dirp, arg2, ret);
4628
            }
4629
            free(dirp);
4630
        }
4631
#else
4632
        {
4633
            struct dirent *dirp;
4634
            abi_long count = arg3;
4635

    
4636
            if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
4637
                goto efault;
4638
            ret = get_errno(sys_getdents(arg1, dirp, count));
4639
            if (!is_error(ret)) {
4640
                struct dirent *de;
4641
                int len = ret;
4642
                int reclen;
4643
                de = dirp;
4644
                while (len > 0) {
4645
                    reclen = de->d_reclen;
4646
                    if (reclen > len)
4647
                        break;
4648
                    de->d_reclen = tswap16(reclen);
4649
                    tswapls(&de->d_ino);
4650
                    tswapls(&de->d_off);
4651
                    de = (struct dirent *)((char *)de + reclen);
4652
                    len -= reclen;
4653
                }
4654
            }
4655
            unlock_user(dirp, arg2, ret);
4656
        }
4657
#endif
4658
        break;
4659
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
4660
    case TARGET_NR_getdents64:
4661
        {
4662
            struct dirent64 *dirp;
4663
            abi_long count = arg3;
4664
            if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
4665
                goto efault;
4666
            ret = get_errno(sys_getdents64(arg1, dirp, count));
4667
            if (!is_error(ret)) {
4668
                struct dirent64 *de;
4669
                int len = ret;
4670
                int reclen;
4671
                de = dirp;
4672
                while (len > 0) {
4673
                    reclen = de->d_reclen;
4674
                    if (reclen > len)
4675
                        break;
4676
                    de->d_reclen = tswap16(reclen);
4677
                    tswap64s((uint64_t *)&de->d_ino);
4678
                    tswap64s((uint64_t *)&de->d_off);
4679
                    de = (struct dirent64 *)((char *)de + reclen);
4680
                    len -= reclen;
4681
                }
4682
            }
4683
            unlock_user(dirp, arg2, ret);
4684
        }
4685
        break;
4686
#endif /* TARGET_NR_getdents64 */
4687
#ifdef TARGET_NR__newselect
4688
    case TARGET_NR__newselect:
4689
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
4690
        break;
4691
#endif
4692
#ifdef TARGET_NR_poll
4693
    case TARGET_NR_poll:
4694
        {
4695
            struct target_pollfd *target_pfd;
4696
            unsigned int nfds = arg2;
4697
            int timeout = arg3;
4698
            struct pollfd *pfd;
4699
            unsigned int i;
4700

    
4701
            target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
4702
            if (!target_pfd)
4703
                goto efault;
4704
            pfd = alloca(sizeof(struct pollfd) * nfds);
4705
            for(i = 0; i < nfds; i++) {
4706
                pfd[i].fd = tswap32(target_pfd[i].fd);
4707
                pfd[i].events = tswap16(target_pfd[i].events);
4708
            }
4709
            ret = get_errno(poll(pfd, nfds, timeout));
4710
            if (!is_error(ret)) {
4711
                for(i = 0; i < nfds; i++) {
4712
                    target_pfd[i].revents = tswap16(pfd[i].revents);
4713
                }
4714
                ret += nfds * (sizeof(struct target_pollfd)
4715
                               - sizeof(struct pollfd));
4716
            }
4717
            unlock_user(target_pfd, arg1, ret);
4718
        }
4719
        break;
4720
#endif
4721
    case TARGET_NR_flock:
4722
        /* NOTE: the flock constant seems to be the same for every
4723
           Linux platform */
4724
        ret = get_errno(flock(arg1, arg2));
4725
        break;
4726
    case TARGET_NR_readv:
4727
        {
4728
            int count = arg3;
4729
            struct iovec *vec;
4730

    
4731
            vec = alloca(count * sizeof(struct iovec));
4732
            if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
4733
                goto efault;
4734
            ret = get_errno(readv(arg1, vec, count));
4735
            unlock_iovec(vec, arg2, count, 1);
4736
        }
4737
        break;
4738
    case TARGET_NR_writev:
4739
        {
4740
            int count = arg3;
4741
            struct iovec *vec;
4742

    
4743
            vec = alloca(count * sizeof(struct iovec));
4744
            if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
4745
                goto efault;
4746
            ret = get_errno(writev(arg1, vec, count));
4747
            unlock_iovec(vec, arg2, count, 0);
4748
        }
4749
        break;
4750
    case TARGET_NR_getsid:
4751
        ret = get_errno(getsid(arg1));
4752
        break;
4753
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
4754
    case TARGET_NR_fdatasync:
4755
        ret = get_errno(fdatasync(arg1));
4756
        break;
4757
#endif
4758
    case TARGET_NR__sysctl:
4759
        /* We don't implement this, but ENOTDIR is always a safe
4760
           return value. */
4761
        ret = -TARGET_ENOTDIR;
4762
        break;
4763
    case TARGET_NR_sched_setparam:
4764
        {
4765
            struct sched_param *target_schp;
4766
            struct sched_param schp;
4767

    
4768
            if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
4769
                goto efault;
4770
            schp.sched_priority = tswap32(target_schp->sched_priority);
4771
            unlock_user_struct(target_schp, arg2, 0);
4772
            ret = get_errno(sched_setparam(arg1, &schp));
4773
        }
4774
        break;
4775
    case TARGET_NR_sched_getparam:
4776
        {
4777
            struct sched_param *target_schp;
4778
            struct sched_param schp;
4779
            ret = get_errno(sched_getparam(arg1, &schp));
4780
            if (!is_error(ret)) {
4781
                if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
4782
                    goto efault;
4783
                target_schp->sched_priority = tswap32(schp.sched_priority);
4784
                unlock_user_struct(target_schp, arg2, 1);
4785
            }
4786
        }
4787
        break;
4788
    case TARGET_NR_sched_setscheduler:
4789
        {
4790
            struct sched_param *target_schp;
4791
            struct sched_param schp;
4792
            if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
4793
                goto efault;
4794
            schp.sched_priority = tswap32(target_schp->sched_priority);
4795
            unlock_user_struct(target_schp, arg3, 0);
4796
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
4797
        }
4798
        break;
4799
    case TARGET_NR_sched_getscheduler:
4800
        ret = get_errno(sched_getscheduler(arg1));
4801
        break;
4802
    case TARGET_NR_sched_yield:
4803
        ret = get_errno(sched_yield());
4804
        break;
4805
    case TARGET_NR_sched_get_priority_max:
4806
        ret = get_errno(sched_get_priority_max(arg1));
4807
        break;
4808
    case TARGET_NR_sched_get_priority_min:
4809
        ret = get_errno(sched_get_priority_min(arg1));
4810
        break;
4811
    case TARGET_NR_sched_rr_get_interval:
4812
        {
4813
            struct timespec ts;
4814
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
4815
            if (!is_error(ret)) {
4816
                host_to_target_timespec(arg2, &ts);
4817
            }
4818
        }
4819
        break;
4820
    case TARGET_NR_nanosleep:
4821
        {
4822
            struct timespec req, rem;
4823
            target_to_host_timespec(&req, arg1);
4824
            ret = get_errno(nanosleep(&req, &rem));
4825
            if (is_error(ret) && arg2) {
4826
                host_to_target_timespec(arg2, &rem);
4827
            }
4828
        }
4829
        break;
4830
#ifdef TARGET_NR_query_module
4831
    case TARGET_NR_query_module:
4832
        goto unimplemented;
4833
#endif
4834
#ifdef TARGET_NR_nfsservctl
4835
    case TARGET_NR_nfsservctl:
4836
        goto unimplemented;
4837
#endif
4838
    case TARGET_NR_prctl:
4839
        switch (arg1)
4840
            {
4841
            case PR_GET_PDEATHSIG:
4842
                {
4843
                    int deathsig;
4844
                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
4845
                    if (!is_error(ret) && arg2
4846
                        && put_user_ual(deathsig, arg2))
4847
                        goto efault;
4848
                }
4849
                break;
4850
            default:
4851
                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
4852
                break;
4853
            }
4854
        break;
4855
#ifdef TARGET_NR_arch_prctl
4856
    case TARGET_NR_arch_prctl:
4857
#if defined(TARGET_I386) && !defined(TARGET_ABI32)
4858
        ret = do_arch_prctl(cpu_env, arg1, arg2);
4859
        break;
4860
#else
4861
        goto unimplemented;
4862
#endif
4863
#endif
4864
#ifdef TARGET_NR_pread
4865
    case TARGET_NR_pread:
4866
        if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
4867
            goto efault;
4868
        ret = get_errno(pread(arg1, p, arg3, arg4));
4869
        unlock_user(p, arg2, ret);
4870
        break;
4871
    case TARGET_NR_pwrite:
4872
        if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
4873
            goto efault;
4874
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
4875
        unlock_user(p, arg2, 0);
4876
        break;
4877
#endif
4878
    case TARGET_NR_getcwd:
4879
        if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
4880
            goto efault;
4881
        ret = get_errno(sys_getcwd1(p, arg2));
4882
        unlock_user(p, arg1, ret);
4883
        break;
4884
    case TARGET_NR_capget:
4885
        goto unimplemented;
4886
    case TARGET_NR_capset:
4887
        goto unimplemented;
4888
    case TARGET_NR_sigaltstack:
4889
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
4890
    defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA)
4891
        ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
4892
        break;
4893
#else
4894
        goto unimplemented;
4895
#endif
4896
    case TARGET_NR_sendfile:
4897
        goto unimplemented;
4898
#ifdef TARGET_NR_getpmsg
4899
    case TARGET_NR_getpmsg:
4900
        goto unimplemented;
4901
#endif
4902
#ifdef TARGET_NR_putpmsg
4903
    case TARGET_NR_putpmsg:
4904
        goto unimplemented;
4905
#endif
4906
#ifdef TARGET_NR_vfork
4907
    case TARGET_NR_vfork:
4908
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
4909
        break;
4910
#endif
4911
#ifdef TARGET_NR_ugetrlimit
4912
    case TARGET_NR_ugetrlimit:
4913
    {
4914
        struct rlimit rlim;
4915
        ret = get_errno(getrlimit(arg1, &rlim));
4916
        if (!is_error(ret)) {
4917
            struct target_rlimit *target_rlim;
4918
            if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
4919
                goto efault;
4920
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
4921
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
4922
            unlock_user_struct(target_rlim, arg2, 1);
4923
        }
4924
        break;
4925
    }
4926
#endif
4927
#ifdef TARGET_NR_truncate64
4928
    case TARGET_NR_truncate64:
4929
        if (!(p = lock_user_string(arg1)))
4930
            goto efault;
4931
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
4932
        unlock_user(p, arg1, 0);
4933
        break;
4934
#endif
4935
#ifdef TARGET_NR_ftruncate64
4936
    case TARGET_NR_ftruncate64:
4937
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
4938
        break;
4939
#endif
4940
#ifdef TARGET_NR_stat64
4941
    case TARGET_NR_stat64:
4942
        if (!(p = lock_user_string(arg1)))
4943
            goto efault;
4944
        ret = get_errno(stat(path(p), &st));
4945
        unlock_user(p, arg1, 0);
4946
        goto do_stat64;
4947
#endif
4948
#ifdef TARGET_NR_lstat64
4949
    case TARGET_NR_lstat64:
4950
        if (!(p = lock_user_string(arg1)))
4951
            goto efault;
4952
        ret = get_errno(lstat(path(p), &st));
4953
        unlock_user(p, arg1, 0);
4954
        goto do_stat64;
4955
#endif
4956
#ifdef TARGET_NR_fstat64
4957
    case TARGET_NR_fstat64:
4958
        {
4959
            ret = get_errno(fstat(arg1, &st));
4960
        do_stat64:
4961
            if (!is_error(ret)) {
4962
#ifdef TARGET_ARM
4963
                if (((CPUARMState *)cpu_env)->eabi) {
4964
                    struct target_eabi_stat64 *target_st;
4965

    
4966
                    if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
4967
                        goto efault;
4968
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
4969
                    __put_user(st.st_dev, &target_st->st_dev);
4970
                    __put_user(st.st_ino, &target_st->st_ino);
4971
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4972
                    __put_user(st.st_ino, &target_st->__st_ino);
4973
#endif
4974
                    __put_user(st.st_mode, &target_st->st_mode);
4975
                    __put_user(st.st_nlink, &target_st->st_nlink);
4976
                    __put_user(st.st_uid, &target_st->st_uid);
4977
                    __put_user(st.st_gid, &target_st->st_gid);
4978
                    __put_user(st.st_rdev, &target_st->st_rdev);
4979
                    __put_user(st.st_size, &target_st->st_size);
4980
                    __put_user(st.st_blksize, &target_st->st_blksize);
4981
                    __put_user(st.st_blocks, &target_st->st_blocks);
4982
                    __put_user(st.st_atime, &target_st->target_st_atime);
4983
                    __put_user(st.st_mtime, &target_st->target_st_mtime);
4984
                    __put_user(st.st_ctime, &target_st->target_st_ctime);
4985
                    unlock_user_struct(target_st, arg2, 1);
4986
                } else
4987
#endif
4988
                {
4989
                    struct target_stat64 *target_st;
4990

    
4991
                    if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
4992
                        goto efault;
4993
                    memset(target_st, 0, sizeof(struct target_stat64));
4994
                    __put_user(st.st_dev, &target_st->st_dev);
4995
                    __put_user(st.st_ino, &target_st->st_ino);
4996
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4997
                    __put_user(st.st_ino, &target_st->__st_ino);
4998
#endif
4999
                    __put_user(st.st_mode, &target_st->st_mode);
5000
                    __put_user(st.st_nlink, &target_st->st_nlink);
5001
                    __put_user(st.st_uid, &target_st->st_uid);
5002
                    __put_user(st.st_gid, &target_st->st_gid);
5003
                    __put_user(st.st_rdev, &target_st->st_rdev);
5004
                    /* XXX: better use of kernel struct */
5005
                    __put_user(st.st_size, &target_st->st_size);
5006
                    __put_user(st.st_blksize, &target_st->st_blksize);
5007
                    __put_user(st.st_blocks, &target_st->st_blocks);
5008
                    __put_user(st.st_atime, &target_st->target_st_atime);
5009
                    __put_user(st.st_mtime, &target_st->target_st_mtime);
5010
                    __put_user(st.st_ctime, &target_st->target_st_ctime);
5011
                    unlock_user_struct(target_st, arg2, 1);
5012
                }
5013
            }
5014
        }
5015
        break;
5016
#endif
5017
#ifdef USE_UID16
5018
    case TARGET_NR_lchown:
5019
        if (!(p = lock_user_string(arg1)))
5020
            goto efault;
5021
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
5022
        unlock_user(p, arg1, 0);
5023
        break;
5024
    case TARGET_NR_getuid:
5025
        ret = get_errno(high2lowuid(getuid()));
5026
        break;
5027
    case TARGET_NR_getgid:
5028
        ret = get_errno(high2lowgid(getgid()));
5029
        break;
5030
    case TARGET_NR_geteuid:
5031
        ret = get_errno(high2lowuid(geteuid()));
5032
        break;
5033
    case TARGET_NR_getegid:
5034
        ret = get_errno(high2lowgid(getegid()));
5035
        break;
5036
    case TARGET_NR_setreuid:
5037
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
5038
        break;
5039
    case TARGET_NR_setregid:
5040
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
5041
        break;
5042
    case TARGET_NR_getgroups:
5043
        {
5044
            int gidsetsize = arg1;
5045
            uint16_t *target_grouplist;
5046
            gid_t *grouplist;
5047
            int i;
5048

    
5049
            grouplist = alloca(gidsetsize * sizeof(gid_t));
5050
            ret = get_errno(getgroups(gidsetsize, grouplist));
5051
            if (!is_error(ret)) {
5052
                target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
5053
                if (!target_grouplist)
5054
                    goto efault;
5055
                for(i = 0;i < gidsetsize; i++)
5056
                    target_grouplist[i] = tswap16(grouplist[i]);
5057
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
5058
            }
5059
        }
5060
        break;
5061
    case TARGET_NR_setgroups:
5062
        {
5063
            int gidsetsize = arg1;
5064
            uint16_t *target_grouplist;
5065
            gid_t *grouplist;
5066
            int i;
5067

    
5068
            grouplist = alloca(gidsetsize * sizeof(gid_t));
5069
            target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
5070
            if (!target_grouplist) {
5071
                ret = -TARGET_EFAULT;
5072
                goto fail;
5073
            }
5074
            for(i = 0;i < gidsetsize; i++)
5075
                grouplist[i] = tswap16(target_grouplist[i]);
5076
            unlock_user(target_grouplist, arg2, 0);
5077
            ret = get_errno(setgroups(gidsetsize, grouplist));
5078
        }
5079
        break;
5080
    case TARGET_NR_fchown:
5081
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
5082
        break;
5083
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
5084
    case TARGET_NR_fchownat:
5085
        if (!(p = lock_user_string(arg2))) 
5086
            goto efault;
5087
        ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
5088
        unlock_user(p, arg2, 0);
5089
        break;
5090
#endif
5091
#ifdef TARGET_NR_setresuid
5092
    case TARGET_NR_setresuid:
5093
        ret = get_errno(setresuid(low2highuid(arg1),
5094
                                  low2highuid(arg2),
5095
                                  low2highuid(arg3)));
5096
        break;
5097
#endif
5098
#ifdef TARGET_NR_getresuid
5099
    case TARGET_NR_getresuid:
5100
        {
5101
            uid_t ruid, euid, suid;
5102
            ret = get_errno(getresuid(&ruid, &euid, &suid));
5103
            if (!is_error(ret)) {
5104
                if (put_user_u16(high2lowuid(ruid), arg1)
5105
                    || put_user_u16(high2lowuid(euid), arg2)
5106
                    || put_user_u16(high2lowuid(suid), arg3))
5107
                    goto efault;
5108
            }
5109
        }
5110
        break;
5111
#endif
5112
#ifdef TARGET_NR_getresgid
5113
    case TARGET_NR_setresgid:
5114
        ret = get_errno(setresgid(low2highgid(arg1),
5115
                                  low2highgid(arg2),
5116
                                  low2highgid(arg3)));
5117
        break;
5118
#endif
5119
#ifdef TARGET_NR_getresgid
5120
    case TARGET_NR_getresgid:
5121
        {
5122
            gid_t rgid, egid, sgid;
5123
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
5124
            if (!is_error(ret)) {
5125
                if (put_user_u16(high2lowgid(rgid), arg1)
5126
                    || put_user_u16(high2lowgid(egid), arg2)
5127
                    || put_user_u16(high2lowgid(sgid), arg3))
5128
                    goto efault;
5129
            }
5130
        }
5131
        break;
5132
#endif
5133
    case TARGET_NR_chown:
5134
        if (!(p = lock_user_string(arg1)))
5135
            goto efault;
5136
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
5137
        unlock_user(p, arg1, 0);
5138
        break;
5139
    case TARGET_NR_setuid:
5140
        ret = get_errno(setuid(low2highuid(arg1)));
5141
        break;
5142
    case TARGET_NR_setgid:
5143
        ret = get_errno(setgid(low2highgid(arg1)));
5144
        break;
5145
    case TARGET_NR_setfsuid:
5146
        ret = get_errno(setfsuid(arg1));
5147
        break;
5148
    case TARGET_NR_setfsgid:
5149
        ret = get_errno(setfsgid(arg1));
5150
        break;
5151
#endif /* USE_UID16 */
5152

    
5153
#ifdef TARGET_NR_lchown32
5154
    case TARGET_NR_lchown32:
5155
        if (!(p = lock_user_string(arg1)))
5156
            goto efault;
5157
        ret = get_errno(lchown(p, arg2, arg3));
5158
        unlock_user(p, arg1, 0);
5159
        break;
5160
#endif
5161
#ifdef TARGET_NR_getuid32
5162
    case TARGET_NR_getuid32:
5163
        ret = get_errno(getuid());
5164
        break;
5165
#endif
5166
#ifdef TARGET_NR_getgid32
5167
    case TARGET_NR_getgid32:
5168
        ret = get_errno(getgid());
5169
        break;
5170
#endif
5171
#ifdef TARGET_NR_geteuid32
5172
    case TARGET_NR_geteuid32:
5173
        ret = get_errno(geteuid());
5174
        break;
5175
#endif
5176
#ifdef TARGET_NR_getegid32
5177
    case TARGET_NR_getegid32:
5178
        ret = get_errno(getegid());
5179
        break;
5180
#endif
5181
#ifdef TARGET_NR_setreuid32
5182
    case TARGET_NR_setreuid32:
5183
        ret = get_errno(setreuid(arg1, arg2));
5184
        break;
5185
#endif
5186
#ifdef TARGET_NR_setregid32
5187
    case TARGET_NR_setregid32:
5188
        ret = get_errno(setregid(arg1, arg2));
5189
        break;
5190
#endif
5191
#ifdef TARGET_NR_getgroups32
5192
    case TARGET_NR_getgroups32:
5193
        {
5194
            int gidsetsize = arg1;
5195
            uint32_t *target_grouplist;
5196
            gid_t *grouplist;
5197
            int i;
5198

    
5199
            grouplist = alloca(gidsetsize * sizeof(gid_t));
5200
            ret = get_errno(getgroups(gidsetsize, grouplist));
5201
            if (!is_error(ret)) {
5202
                target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
5203
                if (!target_grouplist) {
5204
                    ret = -TARGET_EFAULT;
5205
                    goto fail;
5206
                }
5207
                for(i = 0;i < gidsetsize; i++)
5208
                    target_grouplist[i] = tswap32(grouplist[i]);
5209
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
5210
            }
5211
        }
5212
        break;
5213
#endif
5214
#ifdef TARGET_NR_setgroups32
5215
    case TARGET_NR_setgroups32:
5216
        {
5217
            int gidsetsize = arg1;
5218
            uint32_t *target_grouplist;
5219
            gid_t *grouplist;
5220
            int i;
5221

    
5222
            grouplist = alloca(gidsetsize * sizeof(gid_t));
5223
            target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
5224
            if (!target_grouplist) {
5225
                ret = -TARGET_EFAULT;
5226
                goto fail;
5227
            }
5228
            for(i = 0;i < gidsetsize; i++)
5229
                grouplist[i] = tswap32(target_grouplist[i]);
5230
            unlock_user(target_grouplist, arg2, 0);
5231
            ret = get_errno(setgroups(gidsetsize, grouplist));
5232
        }
5233
        break;
5234
#endif
5235
#ifdef TARGET_NR_fchown32
5236
    case TARGET_NR_fchown32:
5237
        ret = get_errno(fchown(arg1, arg2, arg3));
5238
        break;
5239
#endif
5240
#ifdef TARGET_NR_setresuid32
5241
    case TARGET_NR_setresuid32:
5242
        ret = get_errno(setresuid(arg1, arg2, arg3));
5243
        break;
5244
#endif
5245
#ifdef TARGET_NR_getresuid32
5246
    case TARGET_NR_getresuid32:
5247
        {
5248
            uid_t ruid, euid, suid;
5249
            ret = get_errno(getresuid(&ruid, &euid, &suid));
5250
            if (!is_error(ret)) {
5251
                if (put_user_u32(ruid, arg1)
5252
                    || put_user_u32(euid, arg2)
5253
                    || put_user_u32(suid, arg3))
5254
                    goto efault;
5255
            }
5256
        }
5257
        break;
5258
#endif
5259
#ifdef TARGET_NR_setresgid32
5260
    case TARGET_NR_setresgid32:
5261
        ret = get_errno(setresgid(arg1, arg2, arg3));
5262
        break;
5263
#endif
5264
#ifdef TARGET_NR_getresgid32
5265
    case TARGET_NR_getresgid32:
5266
        {
5267
            gid_t rgid, egid, sgid;
5268
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
5269
            if (!is_error(ret)) {
5270
                if (put_user_u32(rgid, arg1)
5271
                    || put_user_u32(egid, arg2)
5272
                    || put_user_u32(sgid, arg3))
5273
                    goto efault;
5274
            }
5275
        }
5276
        break;
5277
#endif
5278
#ifdef TARGET_NR_chown32
5279
    case TARGET_NR_chown32:
5280
        if (!(p = lock_user_string(arg1)))
5281
            goto efault;
5282
        ret = get_errno(chown(p, arg2, arg3));
5283
        unlock_user(p, arg1, 0);
5284
        break;
5285
#endif
5286
#ifdef TARGET_NR_setuid32
5287
    case TARGET_NR_setuid32:
5288
        ret = get_errno(setuid(arg1));
5289
        break;
5290
#endif
5291
#ifdef TARGET_NR_setgid32
5292
    case TARGET_NR_setgid32:
5293
        ret = get_errno(setgid(arg1));
5294
        break;
5295
#endif
5296
#ifdef TARGET_NR_setfsuid32
5297
    case TARGET_NR_setfsuid32:
5298
        ret = get_errno(setfsuid(arg1));
5299
        break;
5300
#endif
5301
#ifdef TARGET_NR_setfsgid32
5302
    case TARGET_NR_setfsgid32:
5303
        ret = get_errno(setfsgid(arg1));
5304
        break;
5305
#endif
5306

    
5307
    case TARGET_NR_pivot_root:
5308
        goto unimplemented;
5309
#ifdef TARGET_NR_mincore
5310
    case TARGET_NR_mincore:
5311
        goto unimplemented;
5312
#endif
5313
#ifdef TARGET_NR_madvise
5314
    case TARGET_NR_madvise:
5315
        /* A straight passthrough may not be safe because qemu sometimes
5316
           turns private flie-backed mappings into anonymous mappings.
5317
           This will break MADV_DONTNEED.
5318
           This is a hint, so ignoring and returning success is ok.  */
5319
        ret = get_errno(0);
5320
        break;
5321
#endif
5322
#if TARGET_ABI_BITS == 32
5323
    case TARGET_NR_fcntl64:
5324
    {
5325
        int cmd;
5326
        struct flock64 fl;
5327
        struct target_flock64 *target_fl;
5328
#ifdef TARGET_ARM
5329
        struct target_eabi_flock64 *target_efl;
5330
#endif
5331

    
5332
        switch(arg2){
5333
        case TARGET_F_GETLK64:
5334
            cmd = F_GETLK64;
5335
            break;
5336
        case TARGET_F_SETLK64:
5337
            cmd = F_SETLK64;
5338
            break;
5339
        case TARGET_F_SETLKW64:
5340
            cmd = F_SETLK64;
5341
            break;
5342
        default:
5343
            cmd = arg2;
5344
            break;
5345
        }
5346

    
5347
        switch(arg2) {
5348
        case TARGET_F_GETLK64:
5349
#ifdef TARGET_ARM
5350
            if (((CPUARMState *)cpu_env)->eabi) {
5351
                if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 
5352
                    goto efault;
5353
                fl.l_type = tswap16(target_efl->l_type);
5354
                fl.l_whence = tswap16(target_efl->l_whence);
5355
                fl.l_start = tswap64(target_efl->l_start);
5356
                fl.l_len = tswap64(target_efl->l_len);
5357
                fl.l_pid = tswapl(target_efl->l_pid);
5358
                unlock_user_struct(target_efl, arg3, 0);
5359
            } else
5360
#endif
5361
            {
5362
                if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 
5363
                    goto efault;
5364
                fl.l_type = tswap16(target_fl->l_type);
5365
                fl.l_whence = tswap16(target_fl->l_whence);
5366
                fl.l_start = tswap64(target_fl->l_start);
5367
                fl.l_len = tswap64(target_fl->l_len);
5368
                fl.l_pid = tswapl(target_fl->l_pid);
5369
                unlock_user_struct(target_fl, arg3, 0);
5370
            }
5371
            ret = get_errno(fcntl(arg1, cmd, &fl));
5372
            if (ret == 0) {
5373
#ifdef TARGET_ARM
5374
                if (((CPUARMState *)cpu_env)->eabi) {
5375
                    if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 
5376
                        goto efault;
5377
                    target_efl->l_type = tswap16(fl.l_type);
5378
                    target_efl->l_whence = tswap16(fl.l_whence);
5379
                    target_efl->l_start = tswap64(fl.l_start);
5380
                    target_efl->l_len = tswap64(fl.l_len);
5381
                    target_efl->l_pid = tswapl(fl.l_pid);
5382
                    unlock_user_struct(target_efl, arg3, 1);
5383
                } else
5384
#endif
5385
                {
5386
                    if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 
5387
                        goto efault;
5388
                    target_fl->l_type = tswap16(fl.l_type);
5389
                    target_fl->l_whence = tswap16(fl.l_whence);
5390
                    target_fl->l_start = tswap64(fl.l_start);
5391
                    target_fl->l_len = tswap64(fl.l_len);
5392
                    target_fl->l_pid = tswapl(fl.l_pid);
5393
                    unlock_user_struct(target_fl, arg3, 1);
5394
                }
5395
            }
5396
            break;
5397

    
5398
        case TARGET_F_SETLK64:
5399
        case TARGET_F_SETLKW64:
5400
#ifdef TARGET_ARM
5401
            if (((CPUARMState *)cpu_env)->eabi) {
5402
                if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 
5403
                    goto efault;
5404
                fl.l_type = tswap16(target_efl->l_type);
5405
                fl.l_whence = tswap16(target_efl->l_whence);
5406
                fl.l_start = tswap64(target_efl->l_start);
5407
                fl.l_len = tswap64(target_efl->l_len);
5408
                fl.l_pid = tswapl(target_efl->l_pid);
5409
                unlock_user_struct(target_efl, arg3, 0);
5410
            } else
5411
#endif
5412
            {
5413
                if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 
5414
                    goto efault;
5415
                fl.l_type = tswap16(target_fl->l_type);
5416
                fl.l_whence = tswap16(target_fl->l_whence);
5417
                fl.l_start = tswap64(target_fl->l_start);
5418
                fl.l_len = tswap64(target_fl->l_len);
5419
                fl.l_pid = tswapl(target_fl->l_pid);
5420
                unlock_user_struct(target_fl, arg3, 0);
5421
            }
5422
            ret = get_errno(fcntl(arg1, cmd, &fl));
5423
            break;
5424
        default:
5425
            ret = do_fcntl(arg1, cmd, arg3);
5426
            break;
5427
        }
5428
        break;
5429
    }
5430
#endif
5431
#ifdef TARGET_NR_cacheflush
5432
    case TARGET_NR_cacheflush:
5433
        /* self-modifying code is handled automatically, so nothing needed */
5434
        ret = 0;
5435
        break;
5436
#endif
5437
#ifdef TARGET_NR_security
5438
    case TARGET_NR_security:
5439
        goto unimplemented;
5440
#endif
5441
#ifdef TARGET_NR_getpagesize
5442
    case TARGET_NR_getpagesize:
5443
        ret = TARGET_PAGE_SIZE;
5444
        break;
5445
#endif
5446
    case TARGET_NR_gettid:
5447
        ret = get_errno(gettid());
5448
        break;
5449
#ifdef TARGET_NR_readahead
5450
    case TARGET_NR_readahead:
5451
        goto unimplemented;
5452
#endif
5453
#ifdef TARGET_NR_setxattr
5454
    case TARGET_NR_setxattr:
5455
    case TARGET_NR_lsetxattr:
5456
    case TARGET_NR_fsetxattr:
5457
    case TARGET_NR_getxattr:
5458
    case TARGET_NR_lgetxattr:
5459
    case TARGET_NR_fgetxattr:
5460
    case TARGET_NR_listxattr:
5461
    case TARGET_NR_llistxattr:
5462
    case TARGET_NR_flistxattr:
5463
    case TARGET_NR_removexattr:
5464
    case TARGET_NR_lremovexattr:
5465
    case TARGET_NR_fremovexattr:
5466
        goto unimplemented_nowarn;
5467
#endif
5468
#ifdef TARGET_NR_set_thread_area
5469
    case TARGET_NR_set_thread_area:
5470
#if defined(TARGET_MIPS)
5471
      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
5472
      ret = 0;
5473
      break;
5474
#elif defined(TARGET_I386) && defined(TARGET_ABI32)
5475
      ret = do_set_thread_area(cpu_env, arg1);
5476
      break;
5477
#else
5478
      goto unimplemented_nowarn;
5479
#endif
5480
#endif
5481
#ifdef TARGET_NR_get_thread_area
5482
    case TARGET_NR_get_thread_area:
5483
#if defined(TARGET_I386) && defined(TARGET_ABI32)
5484
        ret = do_get_thread_area(cpu_env, arg1);
5485
#else
5486
        goto unimplemented_nowarn;
5487
#endif
5488
#endif
5489
#ifdef TARGET_NR_getdomainname
5490
    case TARGET_NR_getdomainname:
5491
        goto unimplemented_nowarn;
5492
#endif
5493

    
5494
#ifdef TARGET_NR_clock_gettime
5495
    case TARGET_NR_clock_gettime:
5496
    {
5497
        struct timespec ts;
5498
        ret = get_errno(clock_gettime(arg1, &ts));
5499
        if (!is_error(ret)) {
5500
            host_to_target_timespec(arg2, &ts);
5501
        }
5502
        break;
5503
    }
5504
#endif
5505
#ifdef TARGET_NR_clock_getres
5506
    case TARGET_NR_clock_getres:
5507
    {
5508
        struct timespec ts;
5509
        ret = get_errno(clock_getres(arg1, &ts));
5510
        if (!is_error(ret)) {
5511
            host_to_target_timespec(arg2, &ts);
5512
        }
5513
        break;
5514
    }
5515
#endif
5516

    
5517
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
5518
    case TARGET_NR_set_tid_address:
5519
        ret = get_errno(set_tid_address((int *)g2h(arg1)));
5520
        break;
5521
#endif
5522

    
5523
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
5524
    case TARGET_NR_tkill:
5525
        ret = get_errno(sys_tkill((int)arg1, (int)arg2));
5526
        break;
5527
#endif
5528

    
5529
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
5530
    case TARGET_NR_tgkill:
5531
        ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3));
5532
        break;
5533
#endif
5534

    
5535
#ifdef TARGET_NR_set_robust_list
5536
    case TARGET_NR_set_robust_list:
5537
        goto unimplemented_nowarn;
5538
#endif
5539

    
5540
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
5541
    case TARGET_NR_utimensat:
5542
        {
5543
            struct timespec ts[2];
5544
            target_to_host_timespec(ts, arg3);
5545
            target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
5546
            if (!arg2)
5547
                ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4));
5548
            else {
5549
                if (!(p = lock_user_string(arg2))) {
5550
                    ret = -TARGET_EFAULT;
5551
                    goto fail;
5552
                }
5553
                ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4));
5554
                unlock_user(p, arg2, 0);
5555
            }
5556
        }
5557
        break;
5558
#endif
5559

    
5560
    default:
5561
    unimplemented:
5562
        gemu_log("qemu: Unsupported syscall: %d\n", num);
5563
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
5564
    unimplemented_nowarn:
5565
#endif
5566
        ret = -TARGET_ENOSYS;
5567
        break;
5568
    }
5569
fail:
5570
#ifdef DEBUG
5571
    gemu_log(" = %ld\n", ret);
5572
#endif
5573
    if(do_strace)
5574
        print_syscall_ret(num, ret);
5575
    return ret;
5576
efault:
5577
    ret = -TARGET_EFAULT;
5578
    goto fail;
5579
}