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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>
34
#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
57
#define winsize host_winsize
58
#define termio host_termio
59
#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

    
63
#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>
70
#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)
78
/* 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)                \
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type name (type1 arg1)                                \
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{                                                \
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        return syscall(__NR_##name, arg1);        \
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}
106

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

    
113
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)        \
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type name (type1 arg1,type2 arg2,type3 arg3)                        \
115
{                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3);                \
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}
118

    
119
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4)                                \
121
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4);                        \
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}
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125
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,        \
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                  type5,arg5)                                                        \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)                \
128
{                                                                                \
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        return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5);                \
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}
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132

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

    
140

    
141
#define __NR_sys_uname __NR_uname
142
#define __NR_sys_getcwd1 __NR_getcwd
143
#define __NR_sys_getdents __NR_getdents
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#define __NR_sys_getdents64 __NR_getdents64
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#define __NR_sys_openat __NR_openat
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#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
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#define __NR_sys_syslog __NR_syslog
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#define __NR_sys_tgkill __NR_tgkill
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#define __NR_sys_tkill __NR_tkill
150

    
151
#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
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#define __NR__llseek __NR_lseek
153
#endif
154

    
155
#ifdef __NR_gettid
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_syscall0(int, gettid)
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#else
158
static int gettid(void) {
159
    return -ENOSYS;
160
}
161
#endif
162
_syscall1(int,sys_uname,struct new_utsname *,buf)
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_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
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_syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
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#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
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_syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
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#endif
168
_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
169
          loff_t *, res, uint, wh);
170
#if defined(TARGET_NR_openat) && defined(__NR_openat)
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_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
172
#endif
173
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
174
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
175
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
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_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
177
#endif
178
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
179
_syscall2(int,sys_tkill,int,tid,int,sig)
180
#endif
181
#ifdef __NR_exit_group
182
_syscall1(int,exit_group,int,error_code)
183
#endif
184
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
185
_syscall1(int,set_tid_address,int *,tidptr)
186
#endif
187

    
188
extern int personality(int);
189
extern int flock(int, int);
190
extern int setfsuid(int);
191
extern int setfsgid(int);
192
extern int setresuid(uid_t, uid_t, uid_t);
193
extern int getresuid(uid_t *, uid_t *, uid_t *);
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extern int setresgid(gid_t, gid_t, gid_t);
195
extern int getresgid(gid_t *, gid_t *, gid_t *);
196
extern int setgroups(int, gid_t *);
197

    
198
/*
199
 * This list is the union of errno values overridden in asm-<arch>/errno.h
200
 * minus the errnos that are not actually generic to all archs.
201
 */
202
static uint16_t host_to_target_errno_table[1200] = {
203
    [EIDRM]                = TARGET_EIDRM,
204
    [ECHRNG]                = TARGET_ECHRNG,
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    [EL2NSYNC]                = TARGET_EL2NSYNC,
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    [EL3HLT]                = TARGET_EL3HLT,
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    [EL3RST]                = TARGET_EL3RST,
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    [ELNRNG]                = TARGET_ELNRNG,
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    [EUNATCH]                = TARGET_EUNATCH,
210
    [ENOCSI]                = TARGET_ENOCSI,
211
    [EL2HLT]                = TARGET_EL2HLT,
212
    [EDEADLK]                = TARGET_EDEADLK,
213
    [ENOLCK]                = TARGET_ENOLCK,
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    [EBADE]                = TARGET_EBADE,
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    [EBADR]                = TARGET_EBADR,
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    [EXFULL]                = TARGET_EXFULL,
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    [ENOANO]                = TARGET_ENOANO,
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    [EBADRQC]                = TARGET_EBADRQC,
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    [EBADSLT]                = TARGET_EBADSLT,
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    [EBFONT]                = TARGET_EBFONT,
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    [ENOSTR]                = TARGET_ENOSTR,
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    [ENODATA]                = TARGET_ENODATA,
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    [ETIME]                = TARGET_ETIME,
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    [ENOSR]                = TARGET_ENOSR,
225
    [ENONET]                = TARGET_ENONET,
226
    [ENOPKG]                = TARGET_ENOPKG,
227
    [EREMOTE]                = TARGET_EREMOTE,
228
    [ENOLINK]                = TARGET_ENOLINK,
229
    [EADV]                = TARGET_EADV,
230
    [ESRMNT]                = TARGET_ESRMNT,
231
    [ECOMM]                = TARGET_ECOMM,
232
    [EPROTO]                = TARGET_EPROTO,
233
    [EDOTDOT]                = TARGET_EDOTDOT,
234
    [EMULTIHOP]                = TARGET_EMULTIHOP,
235
    [EBADMSG]                = TARGET_EBADMSG,
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    [ENAMETOOLONG]        = TARGET_ENAMETOOLONG,
237
    [EOVERFLOW]                = TARGET_EOVERFLOW,
238
    [ENOTUNIQ]                = TARGET_ENOTUNIQ,
239
    [EBADFD]                = TARGET_EBADFD,
240
    [EREMCHG]                = TARGET_EREMCHG,
241
    [ELIBACC]                = TARGET_ELIBACC,
242
    [ELIBBAD]                = TARGET_ELIBBAD,
243
    [ELIBSCN]                = TARGET_ELIBSCN,
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    [ELIBMAX]                = TARGET_ELIBMAX,
245
    [ELIBEXEC]                = TARGET_ELIBEXEC,
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    [EILSEQ]                = TARGET_EILSEQ,
247
    [ENOSYS]                = TARGET_ENOSYS,
248
    [ELOOP]                = TARGET_ELOOP,
249
    [ERESTART]                = TARGET_ERESTART,
250
    [ESTRPIPE]                = TARGET_ESTRPIPE,
251
    [ENOTEMPTY]                = TARGET_ENOTEMPTY,
252
    [EUSERS]                = TARGET_EUSERS,
253
    [ENOTSOCK]                = TARGET_ENOTSOCK,
254
    [EDESTADDRREQ]        = TARGET_EDESTADDRREQ,
255
    [EMSGSIZE]                = TARGET_EMSGSIZE,
256
    [EPROTOTYPE]        = TARGET_EPROTOTYPE,
257
    [ENOPROTOOPT]        = TARGET_ENOPROTOOPT,
258
    [EPROTONOSUPPORT]        = TARGET_EPROTONOSUPPORT,
259
    [ESOCKTNOSUPPORT]        = TARGET_ESOCKTNOSUPPORT,
260
    [EOPNOTSUPP]        = TARGET_EOPNOTSUPP,
261
    [EPFNOSUPPORT]        = TARGET_EPFNOSUPPORT,
262
    [EAFNOSUPPORT]        = TARGET_EAFNOSUPPORT,
263
    [EADDRINUSE]        = TARGET_EADDRINUSE,
264
    [EADDRNOTAVAIL]        = TARGET_EADDRNOTAVAIL,
265
    [ENETDOWN]                = TARGET_ENETDOWN,
266
    [ENETUNREACH]        = TARGET_ENETUNREACH,
267
    [ENETRESET]                = TARGET_ENETRESET,
268
    [ECONNABORTED]        = TARGET_ECONNABORTED,
269
    [ECONNRESET]        = TARGET_ECONNRESET,
270
    [ENOBUFS]                = TARGET_ENOBUFS,
271
    [EISCONN]                = TARGET_EISCONN,
272
    [ENOTCONN]                = TARGET_ENOTCONN,
273
    [EUCLEAN]                = TARGET_EUCLEAN,
274
    [ENOTNAM]                = TARGET_ENOTNAM,
275
    [ENAVAIL]                = TARGET_ENAVAIL,
276
    [EISNAM]                = TARGET_EISNAM,
277
    [EREMOTEIO]                = TARGET_EREMOTEIO,
278
    [ESHUTDOWN]                = TARGET_ESHUTDOWN,
279
    [ETOOMANYREFS]        = TARGET_ETOOMANYREFS,
280
    [ETIMEDOUT]                = TARGET_ETIMEDOUT,
281
    [ECONNREFUSED]        = TARGET_ECONNREFUSED,
282
    [EHOSTDOWN]                = TARGET_EHOSTDOWN,
283
    [EHOSTUNREACH]        = TARGET_EHOSTUNREACH,
284
    [EALREADY]                = TARGET_EALREADY,
285
    [EINPROGRESS]        = TARGET_EINPROGRESS,
286
    [ESTALE]                = TARGET_ESTALE,
287
    [ECANCELED]                = TARGET_ECANCELED,
288
    [ENOMEDIUM]                = TARGET_ENOMEDIUM,
289
    [EMEDIUMTYPE]        = TARGET_EMEDIUMTYPE,
290
#ifdef ENOKEY
291
    [ENOKEY]                = TARGET_ENOKEY,
292
#endif
293
#ifdef EKEYEXPIRED
294
    [EKEYEXPIRED]        = TARGET_EKEYEXPIRED,
295
#endif
296
#ifdef EKEYREVOKED
297
    [EKEYREVOKED]        = TARGET_EKEYREVOKED,
298
#endif
299
#ifdef EKEYREJECTED
300
    [EKEYREJECTED]        = TARGET_EKEYREJECTED,
301
#endif
302
#ifdef EOWNERDEAD
303
    [EOWNERDEAD]        = TARGET_EOWNERDEAD,
304
#endif
305
#ifdef ENOTRECOVERABLE
306
    [ENOTRECOVERABLE]        = TARGET_ENOTRECOVERABLE,
307
#endif
308
        };
309

    
310
static inline int host_to_target_errno(int err)
311
{
312
    if(host_to_target_errno_table[err])
313
        return host_to_target_errno_table[err];
314
    return err;
315
}
316

    
317
static inline long get_errno(long ret)
318
{
319
    if (ret == -1)
320
        return -host_to_target_errno(errno);
321
    else
322
        return ret;
323
}
324

    
325
static inline int is_error(long ret)
326
{
327
    return (unsigned long)ret >= (unsigned long)(-4096);
328
}
329

    
330
static target_ulong target_brk;
331
static target_ulong target_original_brk;
332

    
333
void target_set_brk(target_ulong new_brk)
334
{
335
    target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
336
}
337

    
338
long do_brk(target_ulong new_brk)
339
{
340
    target_ulong brk_page;
341
    long mapped_addr;
342
    int        new_alloc_size;
343

    
344
    if (!new_brk)
345
        return target_brk;
346
    if (new_brk < target_original_brk)
347
        return -ENOMEM;
348

    
349
    brk_page = HOST_PAGE_ALIGN(target_brk);
350

    
351
    /* If the new brk is less than this, set it and we're done... */
352
    if (new_brk < brk_page) {
353
        target_brk = new_brk;
354
            return target_brk;
355
    }
356

    
357
    /* We need to allocate more memory after the brk... */
358
    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
359
    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
360
                                        PROT_READ|PROT_WRITE,
361
                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
362
    if (is_error(mapped_addr)) {
363
        return mapped_addr;
364
    } else {
365
        target_brk = new_brk;
366
            return target_brk;
367
    }
368
}
369

    
370
static inline fd_set *target_to_host_fds(fd_set *fds,
371
                                         target_long *target_fds, int n)
372
{
373
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
374
    return (fd_set *)target_fds;
375
#else
376
    int i, b;
377
    if (target_fds) {
378
        FD_ZERO(fds);
379
        for(i = 0;i < n; i++) {
380
            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
381
                 (i & (TARGET_LONG_BITS - 1))) & 1;
382
            if (b)
383
                FD_SET(i, fds);
384
        }
385
        return fds;
386
    } else {
387
        return NULL;
388
    }
389
#endif
390
}
391

    
392
static inline void host_to_target_fds(target_long *target_fds,
393
                                      fd_set *fds, int n)
394
{
395
#if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
396
    /* nothing to do */
397
#else
398
    int i, nw, j, k;
399
    target_long v;
400

    
401
    if (target_fds) {
402
        nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
403
        k = 0;
404
        for(i = 0;i < nw; i++) {
405
            v = 0;
406
            for(j = 0; j < TARGET_LONG_BITS; j++) {
407
                v |= ((FD_ISSET(k, fds) != 0) << j);
408
                k++;
409
            }
410
            target_fds[i] = tswapl(v);
411
        }
412
    }
413
#endif
414
}
415

    
416
#if defined(__alpha__)
417
#define HOST_HZ 1024
418
#else
419
#define HOST_HZ 100
420
#endif
421

    
422
static inline long host_to_target_clock_t(long ticks)
423
{
424
#if HOST_HZ == TARGET_HZ
425
    return ticks;
426
#else
427
    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
428
#endif
429
}
430

    
431
static inline void host_to_target_rusage(target_ulong target_addr,
432
                                         const struct rusage *rusage)
433
{
434
    struct target_rusage *target_rusage;
435

    
436
    lock_user_struct(target_rusage, target_addr, 0);
437
    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
438
    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
439
    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
440
    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
441
    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
442
    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
443
    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
444
    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
445
    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
446
    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
447
    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
448
    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
449
    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
450
    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
451
    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
452
    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
453
    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
454
    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
455
    unlock_user_struct(target_rusage, target_addr, 1);
456
}
457

    
458
static inline void target_to_host_timeval(struct timeval *tv,
459
                                          target_ulong target_addr)
460
{
461
    struct target_timeval *target_tv;
462

    
463
    lock_user_struct(target_tv, target_addr, 1);
464
    tv->tv_sec = tswapl(target_tv->tv_sec);
465
    tv->tv_usec = tswapl(target_tv->tv_usec);
466
    unlock_user_struct(target_tv, target_addr, 0);
467
}
468

    
469
static inline void host_to_target_timeval(target_ulong target_addr,
470
                                          const struct timeval *tv)
471
{
472
    struct target_timeval *target_tv;
473

    
474
    lock_user_struct(target_tv, target_addr, 0);
475
    target_tv->tv_sec = tswapl(tv->tv_sec);
476
    target_tv->tv_usec = tswapl(tv->tv_usec);
477
    unlock_user_struct(target_tv, target_addr, 1);
478
}
479

    
480

    
481
static long do_select(long n,
482
                      target_ulong rfd_p, target_ulong wfd_p,
483
                      target_ulong efd_p, target_ulong target_tv)
484
{
485
    fd_set rfds, wfds, efds;
486
    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
487
    target_long *target_rfds, *target_wfds, *target_efds;
488
    struct timeval tv, *tv_ptr;
489
    long ret;
490
    int ok;
491

    
492
    if (rfd_p) {
493
        target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1);
494
        rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
495
    } else {
496
        target_rfds = NULL;
497
        rfds_ptr = NULL;
498
    }
499
    if (wfd_p) {
500
        target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1);
501
        wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
502
    } else {
503
        target_wfds = NULL;
504
        wfds_ptr = NULL;
505
    }
506
    if (efd_p) {
507
        target_efds = lock_user(efd_p, sizeof(target_long) * n, 1);
508
        efds_ptr = target_to_host_fds(&efds, target_efds, n);
509
    } else {
510
        target_efds = NULL;
511
        efds_ptr = NULL;
512
    }
513

    
514
    if (target_tv) {
515
        target_to_host_timeval(&tv, target_tv);
516
        tv_ptr = &tv;
517
    } else {
518
        tv_ptr = NULL;
519
    }
520
    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
521
    ok = !is_error(ret);
522

    
523
    if (ok) {
524
        host_to_target_fds(target_rfds, rfds_ptr, n);
525
        host_to_target_fds(target_wfds, wfds_ptr, n);
526
        host_to_target_fds(target_efds, efds_ptr, n);
527

    
528
        if (target_tv) {
529
            host_to_target_timeval(target_tv, &tv);
530
        }
531
    }
532
    if (target_rfds)
533
        unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0);
534
    if (target_wfds)
535
        unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0);
536
    if (target_efds)
537
        unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0);
538

    
539
    return ret;
540
}
541

    
542
static inline void target_to_host_sockaddr(struct sockaddr *addr,
543
                                           target_ulong target_addr,
544
                                           socklen_t len)
545
{
546
    struct target_sockaddr *target_saddr;
547

    
548
    target_saddr = lock_user(target_addr, len, 1);
549
    memcpy(addr, target_saddr, len);
550
    addr->sa_family = tswap16(target_saddr->sa_family);
551
    unlock_user(target_saddr, target_addr, 0);
552
}
553

    
554
static inline void host_to_target_sockaddr(target_ulong target_addr,
555
                                           struct sockaddr *addr,
556
                                           socklen_t len)
557
{
558
    struct target_sockaddr *target_saddr;
559

    
560
    target_saddr = lock_user(target_addr, len, 0);
561
    memcpy(target_saddr, addr, len);
562
    target_saddr->sa_family = tswap16(addr->sa_family);
563
    unlock_user(target_saddr, target_addr, len);
564
}
565

    
566
/* ??? Should this also swap msgh->name?  */
567
static inline void target_to_host_cmsg(struct msghdr *msgh,
568
                                       struct target_msghdr *target_msgh)
569
{
570
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
571
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
572
    socklen_t space = 0;
573

    
574
    while (cmsg && target_cmsg) {
575
        void *data = CMSG_DATA(cmsg);
576
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
577

    
578
        int len = tswapl(target_cmsg->cmsg_len)
579
                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
580

    
581
        space += CMSG_SPACE(len);
582
        if (space > msgh->msg_controllen) {
583
            space -= CMSG_SPACE(len);
584
            gemu_log("Host cmsg overflow\n");
585
            break;
586
        }
587

    
588
        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
589
        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
590
        cmsg->cmsg_len = CMSG_LEN(len);
591

    
592
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
593
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
594
            memcpy(data, target_data, len);
595
        } else {
596
            int *fd = (int *)data;
597
            int *target_fd = (int *)target_data;
598
            int i, numfds = len / sizeof(int);
599

    
600
            for (i = 0; i < numfds; i++)
601
                fd[i] = tswap32(target_fd[i]);
602
        }
603

    
604
        cmsg = CMSG_NXTHDR(msgh, cmsg);
605
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
606
    }
607

    
608
    msgh->msg_controllen = space;
609
}
610

    
611
/* ??? Should this also swap msgh->name?  */
612
static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
613
                                       struct msghdr *msgh)
614
{
615
    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
616
    struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
617
    socklen_t space = 0;
618

    
619
    while (cmsg && target_cmsg) {
620
        void *data = CMSG_DATA(cmsg);
621
        void *target_data = TARGET_CMSG_DATA(target_cmsg);
622

    
623
        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
624

    
625
        space += TARGET_CMSG_SPACE(len);
626
        if (space > tswapl(target_msgh->msg_controllen)) {
627
            space -= TARGET_CMSG_SPACE(len);
628
            gemu_log("Target cmsg overflow\n");
629
            break;
630
        }
631

    
632
        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
633
        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
634
        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
635

    
636
        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
637
            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
638
            memcpy(target_data, data, len);
639
        } else {
640
            int *fd = (int *)data;
641
            int *target_fd = (int *)target_data;
642
            int i, numfds = len / sizeof(int);
643

    
644
            for (i = 0; i < numfds; i++)
645
                target_fd[i] = tswap32(fd[i]);
646
        }
647

    
648
        cmsg = CMSG_NXTHDR(msgh, cmsg);
649
        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
650
    }
651

    
652
    msgh->msg_controllen = tswapl(space);
653
}
654

    
655
static long do_setsockopt(int sockfd, int level, int optname,
656
                          target_ulong optval, socklen_t optlen)
657
{
658
    int val, ret;
659

    
660
    switch(level) {
661
    case SOL_TCP:
662
        /* TCP options all take an 'int' value.  */
663
        if (optlen < sizeof(uint32_t))
664
            return -EINVAL;
665

    
666
        val = tget32(optval);
667
        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
668
        break;
669
    case SOL_IP:
670
        switch(optname) {
671
        case IP_TOS:
672
        case IP_TTL:
673
        case IP_HDRINCL:
674
        case IP_ROUTER_ALERT:
675
        case IP_RECVOPTS:
676
        case IP_RETOPTS:
677
        case IP_PKTINFO:
678
        case IP_MTU_DISCOVER:
679
        case IP_RECVERR:
680
        case IP_RECVTOS:
681
#ifdef IP_FREEBIND
682
        case IP_FREEBIND:
683
#endif
684
        case IP_MULTICAST_TTL:
685
        case IP_MULTICAST_LOOP:
686
            val = 0;
687
            if (optlen >= sizeof(uint32_t)) {
688
                val = tget32(optval);
689
            } else if (optlen >= 1) {
690
                val = tget8(optval);
691
            }
692
            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
693
            break;
694
        default:
695
            goto unimplemented;
696
        }
697
        break;
698
    case TARGET_SOL_SOCKET:
699
        switch (optname) {
700
            /* Options with 'int' argument.  */
701
        case TARGET_SO_DEBUG:
702
                optname = SO_DEBUG;
703
                break;
704
        case TARGET_SO_REUSEADDR:
705
                optname = SO_REUSEADDR;
706
                break;
707
        case TARGET_SO_TYPE:
708
                optname = SO_TYPE;
709
                break;
710
        case TARGET_SO_ERROR:
711
                optname = SO_ERROR;
712
                break;
713
        case TARGET_SO_DONTROUTE:
714
                optname = SO_DONTROUTE;
715
                break;
716
        case TARGET_SO_BROADCAST:
717
                optname = SO_BROADCAST;
718
                break;
719
        case TARGET_SO_SNDBUF:
720
                optname = SO_SNDBUF;
721
                break;
722
        case TARGET_SO_RCVBUF:
723
                optname = SO_RCVBUF;
724
                break;
725
        case TARGET_SO_KEEPALIVE:
726
                optname = SO_KEEPALIVE;
727
                break;
728
        case TARGET_SO_OOBINLINE:
729
                optname = SO_OOBINLINE;
730
                break;
731
        case TARGET_SO_NO_CHECK:
732
                optname = SO_NO_CHECK;
733
                break;
734
        case TARGET_SO_PRIORITY:
735
                optname = SO_PRIORITY;
736
                break;
737
#ifdef SO_BSDCOMPAT
738
        case TARGET_SO_BSDCOMPAT:
739
                optname = SO_BSDCOMPAT;
740
                break;
741
#endif
742
        case TARGET_SO_PASSCRED:
743
                optname = SO_PASSCRED;
744
                break;
745
        case TARGET_SO_TIMESTAMP:
746
                optname = SO_TIMESTAMP;
747
                break;
748
        case TARGET_SO_RCVLOWAT:
749
                optname = SO_RCVLOWAT;
750
                break;
751
        case TARGET_SO_RCVTIMEO:
752
                optname = SO_RCVTIMEO;
753
                break;
754
        case TARGET_SO_SNDTIMEO:
755
                optname = SO_SNDTIMEO;
756
                break;
757
            break;
758
        default:
759
            goto unimplemented;
760
        }
761
        if (optlen < sizeof(uint32_t))
762
        return -EINVAL;
763

    
764
        val = tget32(optval);
765
        ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
766
        break;
767
    default:
768
    unimplemented:
769
        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
770
        ret = -ENOSYS;
771
    }
772
    return ret;
773
}
774

    
775
static long do_getsockopt(int sockfd, int level, int optname,
776
                          target_ulong optval, target_ulong optlen)
777
{
778
    int len, lv, val, ret;
779

    
780
    switch(level) {
781
    case TARGET_SOL_SOCKET:
782
            level = SOL_SOCKET;
783
        switch (optname) {
784
        case TARGET_SO_LINGER:
785
        case TARGET_SO_RCVTIMEO:
786
        case TARGET_SO_SNDTIMEO:
787
        case TARGET_SO_PEERCRED:
788
        case TARGET_SO_PEERNAME:
789
            /* These don't just return a single integer */
790
            goto unimplemented;
791
        default:
792
            goto int_case;
793
        }
794
        break;
795
    case SOL_TCP:
796
        /* TCP options all take an 'int' value.  */
797
    int_case:
798
        len = tget32(optlen);
799
        if (len < 0)
800
            return -EINVAL;
801
        lv = sizeof(int);
802
        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
803
        if (ret < 0)
804
            return ret;
805
        val = tswap32(val);
806
        if (len > lv)
807
            len = lv;
808
        if (len == 4)
809
            tput32(optval, val);
810
        else
811
            tput8(optval, val);
812
        tput32(optlen, len);
813
        break;
814
    case SOL_IP:
815
        switch(optname) {
816
        case IP_TOS:
817
        case IP_TTL:
818
        case IP_HDRINCL:
819
        case IP_ROUTER_ALERT:
820
        case IP_RECVOPTS:
821
        case IP_RETOPTS:
822
        case IP_PKTINFO:
823
        case IP_MTU_DISCOVER:
824
        case IP_RECVERR:
825
        case IP_RECVTOS:
826
#ifdef IP_FREEBIND
827
        case IP_FREEBIND:
828
#endif
829
        case IP_MULTICAST_TTL:
830
        case IP_MULTICAST_LOOP:
831
            len = tget32(optlen);
832
            if (len < 0)
833
                return -EINVAL;
834
            lv = sizeof(int);
835
            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
836
            if (ret < 0)
837
                return ret;
838
            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
839
                len = 1;
840
                tput32(optlen, len);
841
                tput8(optval, val);
842
            } else {
843
                if (len > sizeof(int))
844
                    len = sizeof(int);
845
                tput32(optlen, len);
846
                tput32(optval, val);
847
            }
848
            break;
849
        default:
850
            goto unimplemented;
851
        }
852
        break;
853
    default:
854
    unimplemented:
855
        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
856
                 level, optname);
857
        ret = -ENOSYS;
858
        break;
859
    }
860
    return ret;
861
}
862

    
863
static void lock_iovec(struct iovec *vec, target_ulong target_addr,
864
                       int count, int copy)
865
{
866
    struct target_iovec *target_vec;
867
    target_ulong base;
868
    int i;
869

    
870
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
871
    for(i = 0;i < count; i++) {
872
        base = tswapl(target_vec[i].iov_base);
873
        vec[i].iov_len = tswapl(target_vec[i].iov_len);
874
        vec[i].iov_base = lock_user(base, vec[i].iov_len, copy);
875
    }
876
    unlock_user (target_vec, target_addr, 0);
877
}
878

    
879
static void unlock_iovec(struct iovec *vec, target_ulong target_addr,
880
                         int count, int copy)
881
{
882
    struct target_iovec *target_vec;
883
    target_ulong base;
884
    int i;
885

    
886
    target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1);
887
    for(i = 0;i < count; i++) {
888
        base = tswapl(target_vec[i].iov_base);
889
        unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
890
    }
891
    unlock_user (target_vec, target_addr, 0);
892
}
893

    
894
static long do_socket(int domain, int type, int protocol)
895
{
896
#if defined(TARGET_MIPS)
897
    switch(type) {
898
    case TARGET_SOCK_DGRAM:
899
        type = SOCK_DGRAM;
900
        break;
901
    case TARGET_SOCK_STREAM:
902
        type = SOCK_STREAM;
903
        break;
904
    case TARGET_SOCK_RAW:
905
        type = SOCK_RAW;
906
        break;
907
    case TARGET_SOCK_RDM:
908
        type = SOCK_RDM;
909
        break;
910
    case TARGET_SOCK_SEQPACKET:
911
        type = SOCK_SEQPACKET;
912
        break;
913
    case TARGET_SOCK_PACKET:
914
        type = SOCK_PACKET;
915
        break;
916
    }
917
#endif
918
    return get_errno(socket(domain, type, protocol));
919
}
920

    
921
static long do_bind(int sockfd, target_ulong target_addr,
922
                    socklen_t addrlen)
923
{
924
    void *addr = alloca(addrlen);
925

    
926
    target_to_host_sockaddr(addr, target_addr, addrlen);
927
    return get_errno(bind(sockfd, addr, addrlen));
928
}
929

    
930
static long do_connect(int sockfd, target_ulong target_addr,
931
                    socklen_t addrlen)
932
{
933
    void *addr = alloca(addrlen);
934

    
935
    target_to_host_sockaddr(addr, target_addr, addrlen);
936
    return get_errno(connect(sockfd, addr, addrlen));
937
}
938

    
939
static long do_sendrecvmsg(int fd, target_ulong target_msg,
940
                           int flags, int send)
941
{
942
    long ret;
943
    struct target_msghdr *msgp;
944
    struct msghdr msg;
945
    int count;
946
    struct iovec *vec;
947
    target_ulong target_vec;
948

    
949
    lock_user_struct(msgp, target_msg, 1);
950
    if (msgp->msg_name) {
951
        msg.msg_namelen = tswap32(msgp->msg_namelen);
952
        msg.msg_name = alloca(msg.msg_namelen);
953
        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
954
                                msg.msg_namelen);
955
    } else {
956
        msg.msg_name = NULL;
957
        msg.msg_namelen = 0;
958
    }
959
    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
960
    msg.msg_control = alloca(msg.msg_controllen);
961
    msg.msg_flags = tswap32(msgp->msg_flags);
962

    
963
    count = tswapl(msgp->msg_iovlen);
964
    vec = alloca(count * sizeof(struct iovec));
965
    target_vec = tswapl(msgp->msg_iov);
966
    lock_iovec(vec, target_vec, count, send);
967
    msg.msg_iovlen = count;
968
    msg.msg_iov = vec;
969

    
970
    if (send) {
971
        target_to_host_cmsg(&msg, msgp);
972
        ret = get_errno(sendmsg(fd, &msg, flags));
973
    } else {
974
        ret = get_errno(recvmsg(fd, &msg, flags));
975
        if (!is_error(ret))
976
            host_to_target_cmsg(msgp, &msg);
977
    }
978
    unlock_iovec(vec, target_vec, count, !send);
979
    return ret;
980
}
981

    
982
static long do_accept(int fd, target_ulong target_addr,
983
                      target_ulong target_addrlen)
984
{
985
    socklen_t addrlen = tget32(target_addrlen);
986
    void *addr = alloca(addrlen);
987
    long ret;
988

    
989
    ret = get_errno(accept(fd, addr, &addrlen));
990
    if (!is_error(ret)) {
991
        host_to_target_sockaddr(target_addr, addr, addrlen);
992
        tput32(target_addrlen, addrlen);
993
    }
994
    return ret;
995
}
996

    
997
static long do_getpeername(int fd, target_ulong target_addr,
998
                           target_ulong target_addrlen)
999
{
1000
    socklen_t addrlen = tget32(target_addrlen);
1001
    void *addr = alloca(addrlen);
1002
    long ret;
1003

    
1004
    ret = get_errno(getpeername(fd, addr, &addrlen));
1005
    if (!is_error(ret)) {
1006
        host_to_target_sockaddr(target_addr, addr, addrlen);
1007
        tput32(target_addrlen, addrlen);
1008
    }
1009
    return ret;
1010
}
1011

    
1012
static long do_getsockname(int fd, target_ulong target_addr,
1013
                           target_ulong target_addrlen)
1014
{
1015
    socklen_t addrlen = tget32(target_addrlen);
1016
    void *addr = alloca(addrlen);
1017
    long ret;
1018

    
1019
    ret = get_errno(getsockname(fd, addr, &addrlen));
1020
    if (!is_error(ret)) {
1021
        host_to_target_sockaddr(target_addr, addr, addrlen);
1022
        tput32(target_addrlen, addrlen);
1023
    }
1024
    return ret;
1025
}
1026

    
1027
static long do_socketpair(int domain, int type, int protocol,
1028
                          target_ulong target_tab)
1029
{
1030
    int tab[2];
1031
    long ret;
1032

    
1033
    ret = get_errno(socketpair(domain, type, protocol, tab));
1034
    if (!is_error(ret)) {
1035
        tput32(target_tab, tab[0]);
1036
        tput32(target_tab + 4, tab[1]);
1037
    }
1038
    return ret;
1039
}
1040

    
1041
static long do_sendto(int fd, target_ulong msg, size_t len, int flags,
1042
                      target_ulong target_addr, socklen_t addrlen)
1043
{
1044
    void *addr;
1045
    void *host_msg;
1046
    long ret;
1047

    
1048
    host_msg = lock_user(msg, len, 1);
1049
    if (target_addr) {
1050
        addr = alloca(addrlen);
1051
        target_to_host_sockaddr(addr, target_addr, addrlen);
1052
        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1053
    } else {
1054
        ret = get_errno(send(fd, host_msg, len, flags));
1055
    }
1056
    unlock_user(host_msg, msg, 0);
1057
    return ret;
1058
}
1059

    
1060
static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags,
1061
                        target_ulong target_addr, target_ulong target_addrlen)
1062
{
1063
    socklen_t addrlen;
1064
    void *addr;
1065
    void *host_msg;
1066
    long ret;
1067

    
1068
    host_msg = lock_user(msg, len, 0);
1069
    if (target_addr) {
1070
        addrlen = tget32(target_addrlen);
1071
        addr = alloca(addrlen);
1072
        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
1073
    } else {
1074
        addr = NULL; /* To keep compiler quiet.  */
1075
        ret = get_errno(recv(fd, host_msg, len, flags));
1076
    }
1077
    if (!is_error(ret)) {
1078
        if (target_addr) {
1079
            host_to_target_sockaddr(target_addr, addr, addrlen);
1080
            tput32(target_addrlen, addrlen);
1081
        }
1082
        unlock_user(host_msg, msg, len);
1083
    } else {
1084
        unlock_user(host_msg, msg, 0);
1085
    }
1086
    return ret;
1087
}
1088

    
1089
static long do_socketcall(int num, target_ulong vptr)
1090
{
1091
    long ret;
1092
    const int n = sizeof(target_ulong);
1093

    
1094
    switch(num) {
1095
    case SOCKOP_socket:
1096
        {
1097
            int domain = tgetl(vptr);
1098
            int type = tgetl(vptr + n);
1099
            int protocol = tgetl(vptr + 2 * n);
1100
            ret = do_socket(domain, type, protocol);
1101
        }
1102
        break;
1103
    case SOCKOP_bind:
1104
        {
1105
            int sockfd = tgetl(vptr);
1106
            target_ulong target_addr = tgetl(vptr + n);
1107
            socklen_t addrlen = tgetl(vptr + 2 * n);
1108
            ret = do_bind(sockfd, target_addr, addrlen);
1109
        }
1110
        break;
1111
    case SOCKOP_connect:
1112
        {
1113
            int sockfd = tgetl(vptr);
1114
            target_ulong target_addr = tgetl(vptr + n);
1115
            socklen_t addrlen = tgetl(vptr + 2 * n);
1116
            ret = do_connect(sockfd, target_addr, addrlen);
1117
        }
1118
        break;
1119
    case SOCKOP_listen:
1120
        {
1121
            int sockfd = tgetl(vptr);
1122
            int backlog = tgetl(vptr + n);
1123
            ret = get_errno(listen(sockfd, backlog));
1124
        }
1125
        break;
1126
    case SOCKOP_accept:
1127
        {
1128
            int sockfd = tgetl(vptr);
1129
            target_ulong target_addr = tgetl(vptr + n);
1130
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1131
            ret = do_accept(sockfd, target_addr, target_addrlen);
1132
        }
1133
        break;
1134
    case SOCKOP_getsockname:
1135
        {
1136
            int sockfd = tgetl(vptr);
1137
            target_ulong target_addr = tgetl(vptr + n);
1138
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1139
            ret = do_getsockname(sockfd, target_addr, target_addrlen);
1140
        }
1141
        break;
1142
    case SOCKOP_getpeername:
1143
        {
1144
            int sockfd = tgetl(vptr);
1145
            target_ulong target_addr = tgetl(vptr + n);
1146
            target_ulong target_addrlen = tgetl(vptr + 2 * n);
1147
            ret = do_getpeername(sockfd, target_addr, target_addrlen);
1148
        }
1149
        break;
1150
    case SOCKOP_socketpair:
1151
        {
1152
            int domain = tgetl(vptr);
1153
            int type = tgetl(vptr + n);
1154
            int protocol = tgetl(vptr + 2 * n);
1155
            target_ulong tab = tgetl(vptr + 3 * n);
1156
            ret = do_socketpair(domain, type, protocol, tab);
1157
        }
1158
        break;
1159
    case SOCKOP_send:
1160
        {
1161
            int sockfd = tgetl(vptr);
1162
            target_ulong msg = tgetl(vptr + n);
1163
            size_t len = tgetl(vptr + 2 * n);
1164
            int flags = tgetl(vptr + 3 * n);
1165
            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
1166
        }
1167
        break;
1168
    case SOCKOP_recv:
1169
        {
1170
            int sockfd = tgetl(vptr);
1171
            target_ulong msg = tgetl(vptr + n);
1172
            size_t len = tgetl(vptr + 2 * n);
1173
            int flags = tgetl(vptr + 3 * n);
1174
            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
1175
        }
1176
        break;
1177
    case SOCKOP_sendto:
1178
        {
1179
            int sockfd = tgetl(vptr);
1180
            target_ulong msg = tgetl(vptr + n);
1181
            size_t len = tgetl(vptr + 2 * n);
1182
            int flags = tgetl(vptr + 3 * n);
1183
            target_ulong addr = tgetl(vptr + 4 * n);
1184
            socklen_t addrlen = tgetl(vptr + 5 * n);
1185
            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
1186
        }
1187
        break;
1188
    case SOCKOP_recvfrom:
1189
        {
1190
            int sockfd = tgetl(vptr);
1191
            target_ulong msg = tgetl(vptr + n);
1192
            size_t len = tgetl(vptr + 2 * n);
1193
            int flags = tgetl(vptr + 3 * n);
1194
            target_ulong addr = tgetl(vptr + 4 * n);
1195
            target_ulong addrlen = tgetl(vptr + 5 * n);
1196
            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
1197
        }
1198
        break;
1199
    case SOCKOP_shutdown:
1200
        {
1201
            int sockfd = tgetl(vptr);
1202
            int how = tgetl(vptr + n);
1203

    
1204
            ret = get_errno(shutdown(sockfd, how));
1205
        }
1206
        break;
1207
    case SOCKOP_sendmsg:
1208
    case SOCKOP_recvmsg:
1209
        {
1210
            int fd;
1211
            target_ulong target_msg;
1212
            int flags;
1213

    
1214
            fd = tgetl(vptr);
1215
            target_msg = tgetl(vptr + n);
1216
            flags = tgetl(vptr + 2 * n);
1217

    
1218
            ret = do_sendrecvmsg(fd, target_msg, flags,
1219
                                 (num == SOCKOP_sendmsg));
1220
        }
1221
        break;
1222
    case SOCKOP_setsockopt:
1223
        {
1224
            int sockfd = tgetl(vptr);
1225
            int level = tgetl(vptr + n);
1226
            int optname = tgetl(vptr + 2 * n);
1227
            target_ulong optval = tgetl(vptr + 3 * n);
1228
            socklen_t optlen = tgetl(vptr + 4 * n);
1229

    
1230
            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
1231
        }
1232
        break;
1233
    case SOCKOP_getsockopt:
1234
        {
1235
            int sockfd = tgetl(vptr);
1236
            int level = tgetl(vptr + n);
1237
            int optname = tgetl(vptr + 2 * n);
1238
            target_ulong optval = tgetl(vptr + 3 * n);
1239
            target_ulong poptlen = tgetl(vptr + 4 * n);
1240

    
1241
            ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
1242
        }
1243
        break;
1244
    default:
1245
        gemu_log("Unsupported socketcall: %d\n", num);
1246
        ret = -ENOSYS;
1247
        break;
1248
    }
1249
    return ret;
1250
}
1251

    
1252
#define N_SHM_REGIONS        32
1253

    
1254
static struct shm_region {
1255
    uint32_t        start;
1256
    uint32_t        size;
1257
} shm_regions[N_SHM_REGIONS];
1258

    
1259
struct target_ipc_perm
1260
{
1261
    target_long __key;
1262
    target_ulong uid;
1263
    target_ulong gid;
1264
    target_ulong cuid;
1265
    target_ulong cgid;
1266
    unsigned short int mode;
1267
    unsigned short int __pad1;
1268
    unsigned short int __seq;
1269
    unsigned short int __pad2;
1270
    target_ulong __unused1;
1271
    target_ulong __unused2;
1272
};
1273

    
1274
struct target_semid_ds
1275
{
1276
  struct target_ipc_perm sem_perm;
1277
  target_ulong sem_otime;
1278
  target_ulong __unused1;
1279
  target_ulong sem_ctime;
1280
  target_ulong __unused2;
1281
  target_ulong sem_nsems;
1282
  target_ulong __unused3;
1283
  target_ulong __unused4;
1284
};
1285

    
1286
static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip,
1287
                                           target_ulong target_addr)
1288
{
1289
    struct target_ipc_perm *target_ip;
1290
    struct target_semid_ds *target_sd;
1291

    
1292
    lock_user_struct(target_sd, target_addr, 1);
1293
    target_ip=&(target_sd->sem_perm);
1294
    host_ip->__key = tswapl(target_ip->__key);
1295
    host_ip->uid = tswapl(target_ip->uid);
1296
    host_ip->gid = tswapl(target_ip->gid);
1297
    host_ip->cuid = tswapl(target_ip->cuid);
1298
    host_ip->cgid = tswapl(target_ip->cgid);
1299
    host_ip->mode = tswapl(target_ip->mode);
1300
    unlock_user_struct(target_sd, target_addr, 0);
1301
}
1302

    
1303
static inline void host_to_target_ipc_perm(target_ulong target_addr,
1304
                                           struct ipc_perm *host_ip)
1305
{
1306
    struct target_ipc_perm *target_ip;
1307
    struct target_semid_ds *target_sd;
1308

    
1309
    lock_user_struct(target_sd, target_addr, 0);
1310
    target_ip = &(target_sd->sem_perm);
1311
    target_ip->__key = tswapl(host_ip->__key);
1312
    target_ip->uid = tswapl(host_ip->uid);
1313
    target_ip->gid = tswapl(host_ip->gid);
1314
    target_ip->cuid = tswapl(host_ip->cuid);
1315
    target_ip->cgid = tswapl(host_ip->cgid);
1316
    target_ip->mode = tswapl(host_ip->mode);
1317
    unlock_user_struct(target_sd, target_addr, 1);
1318
}
1319

    
1320
static inline void target_to_host_semid_ds(struct semid_ds *host_sd,
1321
                                          target_ulong target_addr)
1322
{
1323
    struct target_semid_ds *target_sd;
1324

    
1325
    lock_user_struct(target_sd, target_addr, 1);
1326
    target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
1327
    host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
1328
    host_sd->sem_otime = tswapl(target_sd->sem_otime);
1329
    host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
1330
    unlock_user_struct(target_sd, target_addr, 0);
1331
}
1332

    
1333
static inline void host_to_target_semid_ds(target_ulong target_addr,
1334
                                           struct semid_ds *host_sd)
1335
{
1336
    struct target_semid_ds *target_sd;
1337

    
1338
    lock_user_struct(target_sd, target_addr, 0);
1339
    host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
1340
    target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
1341
    target_sd->sem_otime = tswapl(host_sd->sem_otime);
1342
    target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
1343
    unlock_user_struct(target_sd, target_addr, 1);
1344
}
1345

    
1346
union semun {
1347
        int val;
1348
        struct semid_ds *buf;
1349
        unsigned short *array;
1350
};
1351

    
1352
union target_semun {
1353
        int val;
1354
        target_long buf;
1355
        unsigned short int *array;
1356
};
1357

    
1358
static inline void target_to_host_semun(unsigned long cmd,
1359
                                        union semun *host_su,
1360
                                        target_ulong target_addr,
1361
                                        struct semid_ds *ds)
1362
{
1363
    union target_semun *target_su;
1364

    
1365
    switch( cmd ) {
1366
        case IPC_STAT:
1367
        case IPC_SET:
1368
           lock_user_struct(target_su, target_addr, 1);
1369
           target_to_host_semid_ds(ds,target_su->buf);
1370
           host_su->buf = ds;
1371
           unlock_user_struct(target_su, target_addr, 0);
1372
           break;
1373
        case GETVAL:
1374
        case SETVAL:
1375
           lock_user_struct(target_su, target_addr, 1);
1376
           host_su->val = tswapl(target_su->val);
1377
           unlock_user_struct(target_su, target_addr, 0);
1378
           break;
1379
        case GETALL:
1380
        case SETALL:
1381
           lock_user_struct(target_su, target_addr, 1);
1382
           *host_su->array = tswap16(*target_su->array);
1383
           unlock_user_struct(target_su, target_addr, 0);
1384
           break;
1385
        default:
1386
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1387
    }
1388
}
1389

    
1390
static inline void host_to_target_semun(unsigned long cmd,
1391
                                        target_ulong target_addr,
1392
                                        union semun *host_su,
1393
                                        struct semid_ds *ds)
1394
{
1395
    union target_semun *target_su;
1396

    
1397
    switch( cmd ) {
1398
        case IPC_STAT:
1399
        case IPC_SET:
1400
           lock_user_struct(target_su, target_addr, 0);
1401
           host_to_target_semid_ds(target_su->buf,ds);
1402
           unlock_user_struct(target_su, target_addr, 1);
1403
           break;
1404
        case GETVAL:
1405
        case SETVAL:
1406
           lock_user_struct(target_su, target_addr, 0);
1407
           target_su->val = tswapl(host_su->val);
1408
           unlock_user_struct(target_su, target_addr, 1);
1409
           break;
1410
        case GETALL:
1411
        case SETALL:
1412
           lock_user_struct(target_su, target_addr, 0);
1413
           *target_su->array = tswap16(*host_su->array);
1414
           unlock_user_struct(target_su, target_addr, 1);
1415
           break;
1416
        default:
1417
           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
1418
    }
1419
}
1420

    
1421
static inline long do_semctl(long first, long second, long third, long ptr)
1422
{
1423
    union semun arg;
1424
    struct semid_ds dsarg;
1425
    int cmd = third&0xff;
1426
    long ret = 0;
1427

    
1428
    switch( cmd ) {
1429
        case GETVAL:
1430
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1431
            ret = get_errno(semctl(first, second, cmd, arg));
1432
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1433
            break;
1434
        case SETVAL:
1435
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1436
            ret = get_errno(semctl(first, second, cmd, arg));
1437
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1438
            break;
1439
        case GETALL:
1440
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1441
            ret = get_errno(semctl(first, second, cmd, arg));
1442
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1443
            break;
1444
        case SETALL:
1445
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1446
            ret = get_errno(semctl(first, second, cmd, arg));
1447
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1448
            break;
1449
        case IPC_STAT:
1450
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1451
            ret = get_errno(semctl(first, second, cmd, arg));
1452
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1453
            break;
1454
        case IPC_SET:
1455
            target_to_host_semun(cmd,&arg,ptr,&dsarg);
1456
            ret = get_errno(semctl(first, second, cmd, arg));
1457
            host_to_target_semun(cmd,ptr,&arg,&dsarg);
1458
            break;
1459
    default:
1460
            ret = get_errno(semctl(first, second, cmd, arg));
1461
    }
1462

    
1463
    return ret;
1464
}
1465

    
1466
struct target_msqid_ds
1467
{
1468
  struct target_ipc_perm msg_perm;
1469
  target_ulong msg_stime;
1470
  target_ulong __unused1;
1471
  target_ulong msg_rtime;
1472
  target_ulong __unused2;
1473
  target_ulong msg_ctime;
1474
  target_ulong __unused3;
1475
  target_ulong __msg_cbytes;
1476
  target_ulong msg_qnum;
1477
  target_ulong msg_qbytes;
1478
  target_ulong msg_lspid;
1479
  target_ulong msg_lrpid;
1480
  target_ulong __unused4;
1481
  target_ulong __unused5;
1482
};
1483

    
1484
static inline void target_to_host_msqid_ds(struct msqid_ds *host_md,
1485
                                          target_ulong target_addr)
1486
{
1487
    struct target_msqid_ds *target_md;
1488

    
1489
    lock_user_struct(target_md, target_addr, 1);
1490
    target_to_host_ipc_perm(&(host_md->msg_perm),target_addr);
1491
    host_md->msg_stime = tswapl(target_md->msg_stime);
1492
    host_md->msg_rtime = tswapl(target_md->msg_rtime);
1493
    host_md->msg_ctime = tswapl(target_md->msg_ctime);
1494
    host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
1495
    host_md->msg_qnum = tswapl(target_md->msg_qnum);
1496
    host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
1497
    host_md->msg_lspid = tswapl(target_md->msg_lspid);
1498
    host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
1499
    unlock_user_struct(target_md, target_addr, 0);
1500
}
1501

    
1502
static inline void host_to_target_msqid_ds(target_ulong target_addr,
1503
                                           struct msqid_ds *host_md)
1504
{
1505
    struct target_msqid_ds *target_md;
1506

    
1507
    lock_user_struct(target_md, target_addr, 0);
1508
    host_to_target_ipc_perm(target_addr,&(host_md->msg_perm));
1509
    target_md->msg_stime = tswapl(host_md->msg_stime);
1510
    target_md->msg_rtime = tswapl(host_md->msg_rtime);
1511
    target_md->msg_ctime = tswapl(host_md->msg_ctime);
1512
    target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
1513
    target_md->msg_qnum = tswapl(host_md->msg_qnum);
1514
    target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
1515
    target_md->msg_lspid = tswapl(host_md->msg_lspid);
1516
    target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
1517
    unlock_user_struct(target_md, target_addr, 1);
1518
}
1519

    
1520
static inline long do_msgctl(long first, long second, long ptr)
1521
{
1522
    struct msqid_ds dsarg;
1523
    int cmd = second&0xff;
1524
    long ret = 0;
1525
    switch( cmd ) {
1526
    case IPC_STAT:
1527
    case IPC_SET:
1528
        target_to_host_msqid_ds(&dsarg,ptr);
1529
        ret = get_errno(msgctl(first, cmd, &dsarg));
1530
        host_to_target_msqid_ds(ptr,&dsarg);
1531
    default:
1532
        ret = get_errno(msgctl(first, cmd, &dsarg));
1533
    }
1534
    return ret;
1535
}
1536

    
1537
struct target_msgbuf {
1538
        target_ulong mtype;
1539
        char        mtext[1];
1540
};
1541

    
1542
static inline long do_msgsnd(long msqid, long msgp, long msgsz, long msgflg)
1543
{
1544
    struct target_msgbuf *target_mb;
1545
    struct msgbuf *host_mb;
1546
    long ret = 0;
1547

    
1548
    lock_user_struct(target_mb,msgp,0);
1549
    host_mb = malloc(msgsz+sizeof(long));
1550
    host_mb->mtype = tswapl(target_mb->mtype);
1551
    memcpy(host_mb->mtext,target_mb->mtext,msgsz);
1552
    ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
1553
    free(host_mb);
1554
    unlock_user_struct(target_mb, msgp, 0);
1555

    
1556
    return ret;
1557
}
1558

    
1559
static inline long do_msgrcv(long msqid, long msgp, long msgsz, long msgtype, long msgflg)
1560
{
1561
    struct target_msgbuf *target_mb;
1562
    struct msgbuf *host_mb;
1563
    long ret = 0;
1564

    
1565
    lock_user_struct(target_mb, msgp, 0);
1566
    host_mb = malloc(msgsz+sizeof(long));
1567
    ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg));
1568
    if (ret > 0)
1569
            memcpy(target_mb->mtext, host_mb->mtext, ret);
1570
    target_mb->mtype = tswapl(host_mb->mtype);
1571
    free(host_mb);
1572
    unlock_user_struct(target_mb, msgp, 0);
1573

    
1574
    return ret;
1575
}
1576

    
1577
/* ??? This only works with linear mappings.  */
1578
static long do_ipc(long call, long first, long second, long third,
1579
                   long ptr, long fifth)
1580
{
1581
    int version;
1582
    long ret = 0;
1583
    unsigned long raddr;
1584
    struct shmid_ds shm_info;
1585
    int i;
1586

    
1587
    version = call >> 16;
1588
    call &= 0xffff;
1589

    
1590
    switch (call) {
1591
    case IPCOP_semop:
1592
        ret = get_errno(semop(first,(struct sembuf *) ptr, second));
1593
        break;
1594

    
1595
    case IPCOP_semget:
1596
        ret = get_errno(semget(first, second, third));
1597
        break;
1598

    
1599
    case IPCOP_semctl:
1600
        ret = do_semctl(first, second, third, ptr);
1601
        break;
1602

    
1603
    case IPCOP_semtimedop:
1604
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1605
        ret = -ENOSYS;
1606
        break;
1607

    
1608
        case IPCOP_msgget:
1609
                ret = get_errno(msgget(first, second));
1610
                break;
1611

    
1612
        case IPCOP_msgsnd:
1613
                ret = do_msgsnd(first, ptr, second, third);
1614
                break;
1615

    
1616
        case IPCOP_msgctl:
1617
                ret = do_msgctl(first, second, ptr);
1618
                break;
1619

    
1620
        case IPCOP_msgrcv:
1621
                {
1622
                      struct ipc_kludge
1623
                      {
1624
                              void *__unbounded msgp;
1625
                              long int msgtyp;
1626
                      };
1627

    
1628
                      struct ipc_kludge *foo = (struct ipc_kludge *) ptr;
1629
                      struct msgbuf *msgp = (struct msgbuf *) foo->msgp;
1630

    
1631
                      ret = do_msgrcv(first, (long)msgp, second, 0, third);
1632

    
1633
                }
1634
                break;
1635

    
1636
    case IPCOP_shmat:
1637
        /* SHM_* flags are the same on all linux platforms */
1638
        ret = get_errno((long) shmat(first, (void *) ptr, second));
1639
        if (is_error(ret))
1640
            break;
1641
        raddr = ret;
1642
        /* find out the length of the shared memory segment */
1643

    
1644
        ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
1645
        if (is_error(ret)) {
1646
            /* can't get length, bail out */
1647
            shmdt((void *) raddr);
1648
            break;
1649
        }
1650
        page_set_flags(raddr, raddr + shm_info.shm_segsz,
1651
                       PAGE_VALID | PAGE_READ |
1652
                       ((second & SHM_RDONLY)? 0: PAGE_WRITE));
1653
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1654
            if (shm_regions[i].start == 0) {
1655
                shm_regions[i].start = raddr;
1656
                shm_regions[i].size = shm_info.shm_segsz;
1657
                break;
1658
            }
1659
        }
1660
        if (put_user(raddr, (uint32_t *)third))
1661
            return -EFAULT;
1662
        ret = 0;
1663
        break;
1664
    case IPCOP_shmdt:
1665
        for (i = 0; i < N_SHM_REGIONS; ++i) {
1666
            if (shm_regions[i].start == ptr) {
1667
                shm_regions[i].start = 0;
1668
                page_set_flags(ptr, shm_regions[i].size, 0);
1669
                break;
1670
            }
1671
        }
1672
        ret = get_errno(shmdt((void *) ptr));
1673
        break;
1674

    
1675
    case IPCOP_shmget:
1676
        /* IPC_* flag values are the same on all linux platforms */
1677
        ret = get_errno(shmget(first, second, third));
1678
        break;
1679

    
1680
        /* IPC_* and SHM_* command values are the same on all linux platforms */
1681
    case IPCOP_shmctl:
1682
        switch(second) {
1683
        case IPC_RMID:
1684
        case SHM_LOCK:
1685
        case SHM_UNLOCK:
1686
            ret = get_errno(shmctl(first, second, NULL));
1687
            break;
1688
        default:
1689
            goto unimplemented;
1690
        }
1691
        break;
1692
    default:
1693
    unimplemented:
1694
        gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
1695
        ret = -ENOSYS;
1696
        break;
1697
    }
1698
    return ret;
1699
}
1700

    
1701
/* kernel structure types definitions */
1702
#define IFNAMSIZ        16
1703

    
1704
#define STRUCT(name, list...) STRUCT_ ## name,
1705
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
1706
enum {
1707
#include "syscall_types.h"
1708
};
1709
#undef STRUCT
1710
#undef STRUCT_SPECIAL
1711

    
1712
#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
1713
#define STRUCT_SPECIAL(name)
1714
#include "syscall_types.h"
1715
#undef STRUCT
1716
#undef STRUCT_SPECIAL
1717

    
1718
typedef struct IOCTLEntry {
1719
    unsigned int target_cmd;
1720
    unsigned int host_cmd;
1721
    const char *name;
1722
    int access;
1723
    const argtype arg_type[5];
1724
} IOCTLEntry;
1725

    
1726
#define IOC_R 0x0001
1727
#define IOC_W 0x0002
1728
#define IOC_RW (IOC_R | IOC_W)
1729

    
1730
#define MAX_STRUCT_SIZE 4096
1731

    
1732
IOCTLEntry ioctl_entries[] = {
1733
#define IOCTL(cmd, access, types...) \
1734
    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1735
#include "ioctls.h"
1736
    { 0, 0, },
1737
};
1738

    
1739
/* ??? Implement proper locking for ioctls.  */
1740
static long do_ioctl(long fd, long cmd, long arg)
1741
{
1742
    const IOCTLEntry *ie;
1743
    const argtype *arg_type;
1744
    long ret;
1745
    uint8_t buf_temp[MAX_STRUCT_SIZE];
1746
    int target_size;
1747
    void *argptr;
1748

    
1749
    ie = ioctl_entries;
1750
    for(;;) {
1751
        if (ie->target_cmd == 0) {
1752
            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1753
            return -ENOSYS;
1754
        }
1755
        if (ie->target_cmd == cmd)
1756
            break;
1757
        ie++;
1758
    }
1759
    arg_type = ie->arg_type;
1760
#if defined(DEBUG)
1761
    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1762
#endif
1763
    switch(arg_type[0]) {
1764
    case TYPE_NULL:
1765
        /* no argument */
1766
        ret = get_errno(ioctl(fd, ie->host_cmd));
1767
        break;
1768
    case TYPE_PTRVOID:
1769
    case TYPE_INT:
1770
        /* int argment */
1771
        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1772
        break;
1773
    case TYPE_PTR:
1774
        arg_type++;
1775
        target_size = thunk_type_size(arg_type, 0);
1776
        switch(ie->access) {
1777
        case IOC_R:
1778
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1779
            if (!is_error(ret)) {
1780
                argptr = lock_user(arg, target_size, 0);
1781
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1782
                unlock_user(argptr, arg, target_size);
1783
            }
1784
            break;
1785
        case IOC_W:
1786
            argptr = lock_user(arg, target_size, 1);
1787
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1788
            unlock_user(argptr, arg, 0);
1789
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1790
            break;
1791
        default:
1792
        case IOC_RW:
1793
            argptr = lock_user(arg, target_size, 1);
1794
            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
1795
            unlock_user(argptr, arg, 0);
1796
            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1797
            if (!is_error(ret)) {
1798
                argptr = lock_user(arg, target_size, 0);
1799
                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
1800
                unlock_user(argptr, arg, target_size);
1801
            }
1802
            break;
1803
        }
1804
        break;
1805
    default:
1806
        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1807
        ret = -ENOSYS;
1808
        break;
1809
    }
1810
    return ret;
1811
}
1812

    
1813
bitmask_transtbl iflag_tbl[] = {
1814
        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1815
        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1816
        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1817
        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1818
        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1819
        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1820
        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1821
        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1822
        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1823
        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1824
        { TARGET_IXON, TARGET_IXON, IXON, IXON },
1825
        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1826
        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1827
        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1828
        { 0, 0, 0, 0 }
1829
};
1830

    
1831
bitmask_transtbl oflag_tbl[] = {
1832
        { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1833
        { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1834
        { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1835
        { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1836
        { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1837
        { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1838
        { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1839
        { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1840
        { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1841
        { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1842
        { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1843
        { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1844
        { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1845
        { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1846
        { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1847
        { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1848
        { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1849
        { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1850
        { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1851
        { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1852
        { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1853
        { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1854
        { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1855
        { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1856
        { 0, 0, 0, 0 }
1857
};
1858

    
1859
bitmask_transtbl cflag_tbl[] = {
1860
        { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1861
        { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1862
        { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1863
        { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1864
        { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1865
        { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1866
        { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1867
        { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1868
        { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1869
        { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1870
        { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1871
        { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1872
        { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1873
        { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1874
        { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1875
        { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1876
        { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1877
        { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1878
        { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1879
        { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1880
        { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1881
        { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1882
        { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1883
        { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1884
        { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1885
        { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1886
        { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1887
        { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1888
        { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1889
        { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1890
        { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1891
        { 0, 0, 0, 0 }
1892
};
1893

    
1894
bitmask_transtbl lflag_tbl[] = {
1895
        { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1896
        { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1897
        { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1898
        { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1899
        { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1900
        { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1901
        { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1902
        { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1903
        { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1904
        { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1905
        { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1906
        { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1907
        { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1908
        { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1909
        { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1910
        { 0, 0, 0, 0 }
1911
};
1912

    
1913
static void target_to_host_termios (void *dst, const void *src)
1914
{
1915
    struct host_termios *host = dst;
1916
    const struct target_termios *target = src;
1917

    
1918
    host->c_iflag =
1919
        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1920
    host->c_oflag =
1921
        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1922
    host->c_cflag =
1923
        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1924
    host->c_lflag =
1925
        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1926
    host->c_line = target->c_line;
1927

    
1928
    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1929
    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1930
    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1931
    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1932
    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1933
    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1934
    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1935
    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1936
    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1937
    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1938
    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1939
    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1940
    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1941
    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1942
    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1943
    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1944
    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1945
}
1946

    
1947
static void host_to_target_termios (void *dst, const void *src)
1948
{
1949
    struct target_termios *target = dst;
1950
    const struct host_termios *host = src;
1951

    
1952
    target->c_iflag =
1953
        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1954
    target->c_oflag =
1955
        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1956
    target->c_cflag =
1957
        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1958
    target->c_lflag =
1959
        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1960
    target->c_line = host->c_line;
1961

    
1962
    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1963
    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1964
    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1965
    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1966
    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1967
    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1968
    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1969
    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1970
    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1971
    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1972
    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1973
    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1974
    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1975
    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1976
    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1977
    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1978
    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1979
}
1980

    
1981
StructEntry struct_termios_def = {
1982
    .convert = { host_to_target_termios, target_to_host_termios },
1983
    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1984
    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1985
};
1986

    
1987
static bitmask_transtbl mmap_flags_tbl[] = {
1988
        { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1989
        { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1990
        { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1991
        { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1992
        { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1993
        { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1994
        { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1995
        { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1996
        { 0, 0, 0, 0 }
1997
};
1998

    
1999
static bitmask_transtbl fcntl_flags_tbl[] = {
2000
        { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
2001
        { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
2002
        { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
2003
        { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
2004
        { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
2005
        { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
2006
        { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
2007
        { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
2008
        { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
2009
        { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
2010
        { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
2011
        { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
2012
        { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
2013
#if defined(O_DIRECT)
2014
        { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
2015
#endif
2016
        { 0, 0, 0, 0 }
2017
};
2018

    
2019
#if defined(TARGET_I386)
2020

    
2021
/* NOTE: there is really one LDT for all the threads */
2022
uint8_t *ldt_table;
2023

    
2024
static int read_ldt(target_ulong ptr, unsigned long bytecount)
2025
{
2026
    int size;
2027
    void *p;
2028

    
2029
    if (!ldt_table)
2030
        return 0;
2031
    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
2032
    if (size > bytecount)
2033
        size = bytecount;
2034
    p = lock_user(ptr, size, 0);
2035
    /* ??? Shoudl this by byteswapped?  */
2036
    memcpy(p, ldt_table, size);
2037
    unlock_user(p, ptr, size);
2038
    return size;
2039
}
2040

    
2041
/* XXX: add locking support */
2042
static int write_ldt(CPUX86State *env,
2043
                     target_ulong ptr, unsigned long bytecount, int oldmode)
2044
{
2045
    struct target_modify_ldt_ldt_s ldt_info;
2046
    struct target_modify_ldt_ldt_s *target_ldt_info;
2047
    int seg_32bit, contents, read_exec_only, limit_in_pages;
2048
    int seg_not_present, useable;
2049
    uint32_t *lp, entry_1, entry_2;
2050

    
2051
    if (bytecount != sizeof(ldt_info))
2052
        return -EINVAL;
2053
    lock_user_struct(target_ldt_info, ptr, 1);
2054
    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
2055
    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
2056
    ldt_info.limit = tswap32(target_ldt_info->limit);
2057
    ldt_info.flags = tswap32(target_ldt_info->flags);
2058
    unlock_user_struct(target_ldt_info, ptr, 0);
2059

    
2060
    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
2061
        return -EINVAL;
2062
    seg_32bit = ldt_info.flags & 1;
2063
    contents = (ldt_info.flags >> 1) & 3;
2064
    read_exec_only = (ldt_info.flags >> 3) & 1;
2065
    limit_in_pages = (ldt_info.flags >> 4) & 1;
2066
    seg_not_present = (ldt_info.flags >> 5) & 1;
2067
    useable = (ldt_info.flags >> 6) & 1;
2068

    
2069
    if (contents == 3) {
2070
        if (oldmode)
2071
            return -EINVAL;
2072
        if (seg_not_present == 0)
2073
            return -EINVAL;
2074
    }
2075
    /* allocate the LDT */
2076
    if (!ldt_table) {
2077
        ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2078
        if (!ldt_table)
2079
            return -ENOMEM;
2080
        memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
2081
        env->ldt.base = h2g(ldt_table);
2082
        env->ldt.limit = 0xffff;
2083
    }
2084

    
2085
    /* NOTE: same code as Linux kernel */
2086
    /* Allow LDTs to be cleared by the user. */
2087
    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
2088
        if (oldmode ||
2089
            (contents == 0                &&
2090
             read_exec_only == 1        &&
2091
             seg_32bit == 0                &&
2092
             limit_in_pages == 0        &&
2093
             seg_not_present == 1        &&
2094
             useable == 0 )) {
2095
            entry_1 = 0;
2096
            entry_2 = 0;
2097
            goto install;
2098
        }
2099
    }
2100

    
2101
    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
2102
        (ldt_info.limit & 0x0ffff);
2103
    entry_2 = (ldt_info.base_addr & 0xff000000) |
2104
        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
2105
        (ldt_info.limit & 0xf0000) |
2106
        ((read_exec_only ^ 1) << 9) |
2107
        (contents << 10) |
2108
        ((seg_not_present ^ 1) << 15) |
2109
        (seg_32bit << 22) |
2110
        (limit_in_pages << 23) |
2111
        0x7000;
2112
    if (!oldmode)
2113
        entry_2 |= (useable << 20);
2114

    
2115
    /* Install the new entry ...  */
2116
install:
2117
    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
2118
    lp[0] = tswap32(entry_1);
2119
    lp[1] = tswap32(entry_2);
2120
    return 0;
2121
}
2122

    
2123
/* specific and weird i386 syscalls */
2124
int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount)
2125
{
2126
    int ret = -ENOSYS;
2127

    
2128
    switch (func) {
2129
    case 0:
2130
        ret = read_ldt(ptr, bytecount);
2131
        break;
2132
    case 1:
2133
        ret = write_ldt(env, ptr, bytecount, 1);
2134
        break;
2135
    case 0x11:
2136
        ret = write_ldt(env, ptr, bytecount, 0);
2137
        break;
2138
    }
2139
    return ret;
2140
}
2141

    
2142
#endif /* defined(TARGET_I386) */
2143

    
2144
/* this stack is the equivalent of the kernel stack associated with a
2145
   thread/process */
2146
#define NEW_STACK_SIZE 8192
2147

    
2148
static int clone_func(void *arg)
2149
{
2150
    CPUState *env = arg;
2151
    cpu_loop(env);
2152
    /* never exits */
2153
    return 0;
2154
}
2155

    
2156
int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
2157
{
2158
    int ret;
2159
    TaskState *ts;
2160
    uint8_t *new_stack;
2161
    CPUState *new_env;
2162

    
2163
    if (flags & CLONE_VM) {
2164
        ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
2165
        memset(ts, 0, sizeof(TaskState));
2166
        new_stack = ts->stack;
2167
        ts->used = 1;
2168
        /* add in task state list */
2169
        ts->next = first_task_state;
2170
        first_task_state = ts;
2171
        /* we create a new CPU instance. */
2172
        new_env = cpu_copy(env);
2173
#if defined(TARGET_I386)
2174
        if (!newsp)
2175
            newsp = env->regs[R_ESP];
2176
        new_env->regs[R_ESP] = newsp;
2177
        new_env->regs[R_EAX] = 0;
2178
#elif defined(TARGET_ARM)
2179
        if (!newsp)
2180
            newsp = env->regs[13];
2181
        new_env->regs[13] = newsp;
2182
        new_env->regs[0] = 0;
2183
#elif defined(TARGET_SPARC)
2184
        if (!newsp)
2185
            newsp = env->regwptr[22];
2186
        new_env->regwptr[22] = newsp;
2187
        new_env->regwptr[0] = 0;
2188
        /* XXXXX */
2189
        printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
2190
#elif defined(TARGET_M68K)
2191
        if (!newsp)
2192
            newsp = env->aregs[7];
2193
        new_env->aregs[7] = newsp;
2194
        new_env->dregs[0] = 0;
2195
        /* ??? is this sufficient?  */
2196
#elif defined(TARGET_MIPS)
2197
        if (!newsp)
2198
            newsp = env->gpr[29][env->current_tc];
2199
        new_env->gpr[29][env->current_tc] = newsp;
2200
#elif defined(TARGET_PPC)
2201
        if (!newsp)
2202
            newsp = env->gpr[1];
2203
        new_env->gpr[1] = newsp;
2204
        {
2205
            int i;
2206
            for (i = 7; i < 32; i++)
2207
                new_env->gpr[i] = 0;
2208
        }
2209
#elif defined(TARGET_SH4)
2210
        if (!newsp)
2211
          newsp = env->gregs[15];
2212
        new_env->gregs[15] = newsp;
2213
        /* XXXXX */
2214
#elif defined(TARGET_ALPHA)
2215
       if (!newsp)
2216
         newsp = env->ir[30];
2217
       new_env->ir[30] = newsp;
2218
        /* ? */
2219
        {
2220
            int i;
2221
            for (i = 7; i < 30; i++)
2222
                new_env->ir[i] = 0;
2223
        }
2224
#else
2225
#error unsupported target CPU
2226
#endif
2227
        new_env->opaque = ts;
2228
#ifdef __ia64__
2229
        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2230
#else
2231
        ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
2232
#endif
2233
    } else {
2234
        /* if no CLONE_VM, we consider it is a fork */
2235
        if ((flags & ~CSIGNAL) != 0)
2236
            return -EINVAL;
2237
        ret = fork();
2238
    }
2239
    return ret;
2240
}
2241

    
2242
static long do_fcntl(int fd, int cmd, target_ulong arg)
2243
{
2244
    struct flock fl;
2245
    struct target_flock *target_fl;
2246
    struct flock64 fl64;
2247
    struct target_flock64 *target_fl64;
2248
    long ret;
2249

    
2250
    switch(cmd) {
2251
    case TARGET_F_GETLK:
2252
        lock_user_struct(target_fl, arg, 1);
2253
        fl.l_type = tswap16(target_fl->l_type);
2254
        fl.l_whence = tswap16(target_fl->l_whence);
2255
        fl.l_start = tswapl(target_fl->l_start);
2256
        fl.l_len = tswapl(target_fl->l_len);
2257
        fl.l_pid = tswapl(target_fl->l_pid);
2258
        unlock_user_struct(target_fl, arg, 0);
2259
        ret = fcntl(fd, cmd, &fl);
2260
        if (ret == 0) {
2261
            lock_user_struct(target_fl, arg, 0);
2262
            target_fl->l_type = tswap16(fl.l_type);
2263
            target_fl->l_whence = tswap16(fl.l_whence);
2264
            target_fl->l_start = tswapl(fl.l_start);
2265
            target_fl->l_len = tswapl(fl.l_len);
2266
            target_fl->l_pid = tswapl(fl.l_pid);
2267
            unlock_user_struct(target_fl, arg, 1);
2268
        }
2269
        break;
2270

    
2271
    case TARGET_F_SETLK:
2272
    case TARGET_F_SETLKW:
2273
        lock_user_struct(target_fl, arg, 1);
2274
        fl.l_type = tswap16(target_fl->l_type);
2275
        fl.l_whence = tswap16(target_fl->l_whence);
2276
        fl.l_start = tswapl(target_fl->l_start);
2277
        fl.l_len = tswapl(target_fl->l_len);
2278
        fl.l_pid = tswapl(target_fl->l_pid);
2279
        unlock_user_struct(target_fl, arg, 0);
2280
        ret = fcntl(fd, cmd, &fl);
2281
        break;
2282

    
2283
    case TARGET_F_GETLK64:
2284
        lock_user_struct(target_fl64, arg, 1);
2285
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2286
        fl64.l_whence = tswap16(target_fl64->l_whence);
2287
        fl64.l_start = tswapl(target_fl64->l_start);
2288
        fl64.l_len = tswapl(target_fl64->l_len);
2289
        fl64.l_pid = tswap16(target_fl64->l_pid);
2290
        unlock_user_struct(target_fl64, arg, 0);
2291
        ret = fcntl(fd, cmd >> 1, &fl64);
2292
        if (ret == 0) {
2293
            lock_user_struct(target_fl64, arg, 0);
2294
            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
2295
            target_fl64->l_whence = tswap16(fl64.l_whence);
2296
            target_fl64->l_start = tswapl(fl64.l_start);
2297
            target_fl64->l_len = tswapl(fl64.l_len);
2298
            target_fl64->l_pid = tswapl(fl64.l_pid);
2299
            unlock_user_struct(target_fl64, arg, 1);
2300
        }
2301
                break;
2302
    case TARGET_F_SETLK64:
2303
    case TARGET_F_SETLKW64:
2304
        lock_user_struct(target_fl64, arg, 1);
2305
        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
2306
        fl64.l_whence = tswap16(target_fl64->l_whence);
2307
        fl64.l_start = tswapl(target_fl64->l_start);
2308
        fl64.l_len = tswapl(target_fl64->l_len);
2309
        fl64.l_pid = tswap16(target_fl64->l_pid);
2310
        unlock_user_struct(target_fl64, arg, 0);
2311
                ret = fcntl(fd, cmd >> 1, &fl64);
2312
        break;
2313

    
2314
    case F_GETFL:
2315
        ret = fcntl(fd, cmd, arg);
2316
        ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
2317
        break;
2318

    
2319
    case F_SETFL:
2320
        ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
2321
        break;
2322

    
2323
    default:
2324
        ret = fcntl(fd, cmd, arg);
2325
        break;
2326
    }
2327
    return ret;
2328
}
2329

    
2330
#ifdef USE_UID16
2331

    
2332
static inline int high2lowuid(int uid)
2333
{
2334
    if (uid > 65535)
2335
        return 65534;
2336
    else
2337
        return uid;
2338
}
2339

    
2340
static inline int high2lowgid(int gid)
2341
{
2342
    if (gid > 65535)
2343
        return 65534;
2344
    else
2345
        return gid;
2346
}
2347

    
2348
static inline int low2highuid(int uid)
2349
{
2350
    if ((int16_t)uid == -1)
2351
        return -1;
2352
    else
2353
        return uid;
2354
}
2355

    
2356
static inline int low2highgid(int gid)
2357
{
2358
    if ((int16_t)gid == -1)
2359
        return -1;
2360
    else
2361
        return gid;
2362
}
2363

    
2364
#endif /* USE_UID16 */
2365

    
2366
void syscall_init(void)
2367
{
2368
    IOCTLEntry *ie;
2369
    const argtype *arg_type;
2370
    int size;
2371

    
2372
#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
2373
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
2374
#include "syscall_types.h"
2375
#undef STRUCT
2376
#undef STRUCT_SPECIAL
2377

    
2378
    /* we patch the ioctl size if necessary. We rely on the fact that
2379
       no ioctl has all the bits at '1' in the size field */
2380
    ie = ioctl_entries;
2381
    while (ie->target_cmd != 0) {
2382
        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
2383
            TARGET_IOC_SIZEMASK) {
2384
            arg_type = ie->arg_type;
2385
            if (arg_type[0] != TYPE_PTR) {
2386
                fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2387
                        ie->target_cmd);
2388
                exit(1);
2389
            }
2390
            arg_type++;
2391
            size = thunk_type_size(arg_type, 0);
2392
            ie->target_cmd = (ie->target_cmd &
2393
                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
2394
                (size << TARGET_IOC_SIZESHIFT);
2395
        }
2396
        /* automatic consistency check if same arch */
2397
#if defined(__i386__) && defined(TARGET_I386)
2398
        if (ie->target_cmd != ie->host_cmd) {
2399
            fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
2400
                    ie->target_cmd, ie->host_cmd);
2401
        }
2402
#endif
2403
        ie++;
2404
    }
2405
}
2406

    
2407
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
2408
{
2409
#ifdef TARGET_WORDS_BIG_ENDIAN
2410
    return ((uint64_t)word0 << 32) | word1;
2411
#else
2412
    return ((uint64_t)word1 << 32) | word0;
2413
#endif
2414
}
2415

    
2416
#ifdef TARGET_NR_truncate64
2417
static inline long target_truncate64(void *cpu_env, const char *arg1,
2418
                                     long arg2, long arg3, long arg4)
2419
{
2420
#ifdef TARGET_ARM
2421
    if (((CPUARMState *)cpu_env)->eabi)
2422
      {
2423
        arg2 = arg3;
2424
        arg3 = arg4;
2425
      }
2426
#endif
2427
    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
2428
}
2429
#endif
2430

    
2431
#ifdef TARGET_NR_ftruncate64
2432
static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2,
2433
                                      long arg3, long arg4)
2434
{
2435
#ifdef TARGET_ARM
2436
    if (((CPUARMState *)cpu_env)->eabi)
2437
      {
2438
        arg2 = arg3;
2439
        arg3 = arg4;
2440
      }
2441
#endif
2442
    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
2443
}
2444
#endif
2445

    
2446
static inline void target_to_host_timespec(struct timespec *host_ts,
2447
                                           target_ulong target_addr)
2448
{
2449
    struct target_timespec *target_ts;
2450

    
2451
    lock_user_struct(target_ts, target_addr, 1);
2452
    host_ts->tv_sec = tswapl(target_ts->tv_sec);
2453
    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
2454
    unlock_user_struct(target_ts, target_addr, 0);
2455
}
2456

    
2457
static inline void host_to_target_timespec(target_ulong target_addr,
2458
                                           struct timespec *host_ts)
2459
{
2460
    struct target_timespec *target_ts;
2461

    
2462
    lock_user_struct(target_ts, target_addr, 0);
2463
    target_ts->tv_sec = tswapl(host_ts->tv_sec);
2464
    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
2465
    unlock_user_struct(target_ts, target_addr, 1);
2466
}
2467

    
2468
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
2469
                long arg4, long arg5, long arg6)
2470
{
2471
    long ret;
2472
    struct stat st;
2473
    struct statfs stfs;
2474
    void *p;
2475

    
2476
#ifdef DEBUG
2477
    gemu_log("syscall %d", num);
2478
#endif
2479
    switch(num) {
2480
    case TARGET_NR_exit:
2481
#ifdef HAVE_GPROF
2482
        _mcleanup();
2483
#endif
2484
        gdb_exit(cpu_env, arg1);
2485
        /* XXX: should free thread stack and CPU env */
2486
        _exit(arg1);
2487
        ret = 0; /* avoid warning */
2488
        break;
2489
    case TARGET_NR_read:
2490
        page_unprotect_range(arg2, arg3);
2491
        p = lock_user(arg2, arg3, 0);
2492
        ret = get_errno(read(arg1, p, arg3));
2493
        unlock_user(p, arg2, ret);
2494
        break;
2495
    case TARGET_NR_write:
2496
        p = lock_user(arg2, arg3, 1);
2497
        ret = get_errno(write(arg1, p, arg3));
2498
        unlock_user(p, arg2, 0);
2499
        break;
2500
    case TARGET_NR_open:
2501
        p = lock_user_string(arg1);
2502
        ret = get_errno(open(path(p),
2503
                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
2504
                             arg3));
2505
        unlock_user(p, arg1, 0);
2506
        break;
2507
#if defined(TARGET_NR_openat) && defined(__NR_openat)
2508
    case TARGET_NR_openat:
2509
        if (!arg2) {
2510
            ret = -EFAULT;
2511
            goto fail;
2512
        }
2513
        p = lock_user_string(arg2);
2514
        if (!access_ok(VERIFY_READ, p, 1))
2515
            ret = -EFAULT;
2516
        else
2517
            ret = get_errno(sys_openat(arg1,
2518
                                       path(p),
2519
                                       target_to_host_bitmask(arg3, fcntl_flags_tbl),
2520
                                       arg4));
2521
        if (p)
2522
            unlock_user(p, arg2, 0);
2523
        break;
2524
#endif
2525
    case TARGET_NR_close:
2526
        ret = get_errno(close(arg1));
2527
        break;
2528
    case TARGET_NR_brk:
2529
        ret = do_brk(arg1);
2530
        break;
2531
    case TARGET_NR_fork:
2532
        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
2533
        break;
2534
#ifdef TARGET_NR_waitpid
2535
    case TARGET_NR_waitpid:
2536
        {
2537
            int status;
2538
            ret = get_errno(waitpid(arg1, &status, arg3));
2539
            if (!is_error(ret) && arg2)
2540
                tput32(arg2, status);
2541
        }
2542
        break;
2543
#endif
2544
#ifdef TARGET_NR_creat /* not on alpha */
2545
    case TARGET_NR_creat:
2546
        p = lock_user_string(arg1);
2547
        ret = get_errno(creat(p, arg2));
2548
        unlock_user(p, arg1, 0);
2549
        break;
2550
#endif
2551
    case TARGET_NR_link:
2552
        {
2553
            void * p2;
2554
            p = lock_user_string(arg1);
2555
            p2 = lock_user_string(arg2);
2556
            ret = get_errno(link(p, p2));
2557
            unlock_user(p2, arg2, 0);
2558
            unlock_user(p, arg1, 0);
2559
        }
2560
        break;
2561
    case TARGET_NR_unlink:
2562
        p = lock_user_string(arg1);
2563
        ret = get_errno(unlink(p));
2564
        unlock_user(p, arg1, 0);
2565
        break;
2566
    case TARGET_NR_execve:
2567
        {
2568
            char **argp, **envp;
2569
            int argc, envc;
2570
            target_ulong gp;
2571
            target_ulong guest_argp;
2572
            target_ulong guest_envp;
2573
            target_ulong addr;
2574
            char **q;
2575

    
2576
            argc = 0;
2577
            guest_argp = arg2;
2578
            for (gp = guest_argp; tgetl(gp); gp++)
2579
                argc++;
2580
            envc = 0;
2581
            guest_envp = arg3;
2582
            for (gp = guest_envp; tgetl(gp); gp++)
2583
                envc++;
2584

    
2585
            argp = alloca((argc + 1) * sizeof(void *));
2586
            envp = alloca((envc + 1) * sizeof(void *));
2587

    
2588
            for (gp = guest_argp, q = argp; ;
2589
                  gp += sizeof(target_ulong), q++) {
2590
                addr = tgetl(gp);
2591
                if (!addr)
2592
                    break;
2593
                *q = lock_user_string(addr);
2594
            }
2595
            *q = NULL;
2596

    
2597
            for (gp = guest_envp, q = envp; ;
2598
                  gp += sizeof(target_ulong), q++) {
2599
                addr = tgetl(gp);
2600
                if (!addr)
2601
                    break;
2602
                *q = lock_user_string(addr);
2603
            }
2604
            *q = NULL;
2605

    
2606
            p = lock_user_string(arg1);
2607
            ret = get_errno(execve(p, argp, envp));
2608
            unlock_user(p, arg1, 0);
2609

    
2610
            for (gp = guest_argp, q = argp; *q;
2611
                  gp += sizeof(target_ulong), q++) {
2612
                addr = tgetl(gp);
2613
                unlock_user(*q, addr, 0);
2614
            }
2615
            for (gp = guest_envp, q = envp; *q;
2616
                  gp += sizeof(target_ulong), q++) {
2617
                addr = tgetl(gp);
2618
                unlock_user(*q, addr, 0);
2619
            }
2620
        }
2621
        break;
2622
    case TARGET_NR_chdir:
2623
        p = lock_user_string(arg1);
2624
        ret = get_errno(chdir(p));
2625
        unlock_user(p, arg1, 0);
2626
        break;
2627
#ifdef TARGET_NR_time
2628
    case TARGET_NR_time:
2629
        {
2630
            time_t host_time;
2631
            ret = get_errno(time(&host_time));
2632
            if (!is_error(ret) && arg1)
2633
                tputl(arg1, host_time);
2634
        }
2635
        break;
2636
#endif
2637
    case TARGET_NR_mknod:
2638
        p = lock_user_string(arg1);
2639
        ret = get_errno(mknod(p, arg2, arg3));
2640
        unlock_user(p, arg1, 0);
2641
        break;
2642
    case TARGET_NR_chmod:
2643
        p = lock_user_string(arg1);
2644
        ret = get_errno(chmod(p, arg2));
2645
        unlock_user(p, arg1, 0);
2646
        break;
2647
#ifdef TARGET_NR_break
2648
    case TARGET_NR_break:
2649
        goto unimplemented;
2650
#endif
2651
#ifdef TARGET_NR_oldstat
2652
    case TARGET_NR_oldstat:
2653
        goto unimplemented;
2654
#endif
2655
    case TARGET_NR_lseek:
2656
        ret = get_errno(lseek(arg1, arg2, arg3));
2657
        break;
2658
#ifdef TARGET_NR_getxpid
2659
    case TARGET_NR_getxpid:
2660
#else
2661
    case TARGET_NR_getpid:
2662
#endif
2663
        ret = get_errno(getpid());
2664
        break;
2665
    case TARGET_NR_mount:
2666
                {
2667
                        /* need to look at the data field */
2668
                        void *p2, *p3;
2669
                        p = lock_user_string(arg1);
2670
                        p2 = lock_user_string(arg2);
2671
                        p3 = lock_user_string(arg3);
2672
                        ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5));
2673
                        unlock_user(p, arg1, 0);
2674
                        unlock_user(p2, arg2, 0);
2675
                        unlock_user(p3, arg3, 0);
2676
                        break;
2677
                }
2678
#ifdef TARGET_NR_umount
2679
    case TARGET_NR_umount:
2680
        p = lock_user_string(arg1);
2681
        ret = get_errno(umount(p));
2682
        unlock_user(p, arg1, 0);
2683
        break;
2684
#endif
2685
#ifdef TARGET_NR_stime /* not on alpha */
2686
    case TARGET_NR_stime:
2687
        {
2688
            time_t host_time;
2689
            host_time = tgetl(arg1);
2690
            ret = get_errno(stime(&host_time));
2691
        }
2692
        break;
2693
#endif
2694
    case TARGET_NR_ptrace:
2695
        goto unimplemented;
2696
#ifdef TARGET_NR_alarm /* not on alpha */
2697
    case TARGET_NR_alarm:
2698
        ret = alarm(arg1);
2699
        break;
2700
#endif
2701
#ifdef TARGET_NR_oldfstat
2702
    case TARGET_NR_oldfstat:
2703
        goto unimplemented;
2704
#endif
2705
#ifdef TARGET_NR_pause /* not on alpha */
2706
    case TARGET_NR_pause:
2707
        ret = get_errno(pause());
2708
        break;
2709
#endif
2710
#ifdef TARGET_NR_utime
2711
    case TARGET_NR_utime:
2712
        {
2713
            struct utimbuf tbuf, *host_tbuf;
2714
            struct target_utimbuf *target_tbuf;
2715
            if (arg2) {
2716
                lock_user_struct(target_tbuf, arg2, 1);
2717
                tbuf.actime = tswapl(target_tbuf->actime);
2718
                tbuf.modtime = tswapl(target_tbuf->modtime);
2719
                unlock_user_struct(target_tbuf, arg2, 0);
2720
                host_tbuf = &tbuf;
2721
            } else {
2722
                host_tbuf = NULL;
2723
            }
2724
            p = lock_user_string(arg1);
2725
            ret = get_errno(utime(p, host_tbuf));
2726
            unlock_user(p, arg1, 0);
2727
        }
2728
        break;
2729
#endif
2730
    case TARGET_NR_utimes:
2731
        {
2732
            struct timeval *tvp, tv[2];
2733
            if (arg2) {
2734
                target_to_host_timeval(&tv[0], arg2);
2735
                target_to_host_timeval(&tv[1],
2736
                    arg2 + sizeof (struct target_timeval));
2737
                tvp = tv;
2738
            } else {
2739
                tvp = NULL;
2740
            }
2741
            p = lock_user_string(arg1);
2742
            ret = get_errno(utimes(p, tvp));
2743
            unlock_user(p, arg1, 0);
2744
        }
2745
        break;
2746
#ifdef TARGET_NR_stty
2747
    case TARGET_NR_stty:
2748
        goto unimplemented;
2749
#endif
2750
#ifdef TARGET_NR_gtty
2751
    case TARGET_NR_gtty:
2752
        goto unimplemented;
2753
#endif
2754
    case TARGET_NR_access:
2755
        p = lock_user_string(arg1);
2756
        ret = get_errno(access(p, arg2));
2757
        unlock_user(p, arg1, 0);
2758
        break;
2759
#ifdef TARGET_NR_nice /* not on alpha */
2760
    case TARGET_NR_nice:
2761
        ret = get_errno(nice(arg1));
2762
        break;
2763
#endif
2764
#ifdef TARGET_NR_ftime
2765
    case TARGET_NR_ftime:
2766
        goto unimplemented;
2767
#endif
2768
    case TARGET_NR_sync:
2769
        sync();
2770
        ret = 0;
2771
        break;
2772
    case TARGET_NR_kill:
2773
        ret = get_errno(kill(arg1, arg2));
2774
        break;
2775
    case TARGET_NR_rename:
2776
        {
2777
            void *p2;
2778
            p = lock_user_string(arg1);
2779
            p2 = lock_user_string(arg2);
2780
            ret = get_errno(rename(p, p2));
2781
            unlock_user(p2, arg2, 0);
2782
            unlock_user(p, arg1, 0);
2783
        }
2784
        break;
2785
    case TARGET_NR_mkdir:
2786
        p = lock_user_string(arg1);
2787
        ret = get_errno(mkdir(p, arg2));
2788
        unlock_user(p, arg1, 0);
2789
        break;
2790
    case TARGET_NR_rmdir:
2791
        p = lock_user_string(arg1);
2792
        ret = get_errno(rmdir(p));
2793
        unlock_user(p, arg1, 0);
2794
        break;
2795
    case TARGET_NR_dup:
2796
        ret = get_errno(dup(arg1));
2797
        break;
2798
    case TARGET_NR_pipe:
2799
        {
2800
            int host_pipe[2];
2801
            ret = get_errno(pipe(host_pipe));
2802
            if (!is_error(ret)) {
2803
#if defined(TARGET_MIPS)
2804
                CPUMIPSState *env = (CPUMIPSState*)cpu_env;
2805
                env->gpr[3][env->current_tc] = host_pipe[1];
2806
                ret = host_pipe[0];
2807
#else
2808
                tput32(arg1, host_pipe[0]);
2809
                tput32(arg1 + 4, host_pipe[1]);
2810
#endif
2811
            }
2812
        }
2813
        break;
2814
    case TARGET_NR_times:
2815
        {
2816
            struct target_tms *tmsp;
2817
            struct tms tms;
2818
            ret = get_errno(times(&tms));
2819
            if (arg1) {
2820
                tmsp = lock_user(arg1, sizeof(struct target_tms), 0);
2821
                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
2822
                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
2823
                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
2824
                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
2825
            }
2826
            if (!is_error(ret))
2827
                ret = host_to_target_clock_t(ret);
2828
        }
2829
        break;
2830
#ifdef TARGET_NR_prof
2831
    case TARGET_NR_prof:
2832
        goto unimplemented;
2833
#endif
2834
#ifdef TARGET_NR_signal
2835
    case TARGET_NR_signal:
2836
        goto unimplemented;
2837
#endif
2838
    case TARGET_NR_acct:
2839
        p = lock_user_string(arg1);
2840
        ret = get_errno(acct(path(p)));
2841
        unlock_user(p, arg1, 0);
2842
        break;
2843
#ifdef TARGET_NR_umount2 /* not on alpha */
2844
    case TARGET_NR_umount2:
2845
        p = lock_user_string(arg1);
2846
        ret = get_errno(umount2(p, arg2));
2847
        unlock_user(p, arg1, 0);
2848
        break;
2849
#endif
2850
#ifdef TARGET_NR_lock
2851
    case TARGET_NR_lock:
2852
        goto unimplemented;
2853
#endif
2854
    case TARGET_NR_ioctl:
2855
        ret = do_ioctl(arg1, arg2, arg3);
2856
        break;
2857
    case TARGET_NR_fcntl:
2858
        ret = get_errno(do_fcntl(arg1, arg2, arg3));
2859
        break;
2860
#ifdef TARGET_NR_mpx
2861
    case TARGET_NR_mpx:
2862
        goto unimplemented;
2863
#endif
2864
    case TARGET_NR_setpgid:
2865
        ret = get_errno(setpgid(arg1, arg2));
2866
        break;
2867
#ifdef TARGET_NR_ulimit
2868
    case TARGET_NR_ulimit:
2869
        goto unimplemented;
2870
#endif
2871
#ifdef TARGET_NR_oldolduname
2872
    case TARGET_NR_oldolduname:
2873
        goto unimplemented;
2874
#endif
2875
    case TARGET_NR_umask:
2876
        ret = get_errno(umask(arg1));
2877
        break;
2878
    case TARGET_NR_chroot:
2879
        p = lock_user_string(arg1);
2880
        ret = get_errno(chroot(p));
2881
        unlock_user(p, arg1, 0);
2882
        break;
2883
    case TARGET_NR_ustat:
2884
        goto unimplemented;
2885
    case TARGET_NR_dup2:
2886
        ret = get_errno(dup2(arg1, arg2));
2887
        break;
2888
#ifdef TARGET_NR_getppid /* not on alpha */
2889
    case TARGET_NR_getppid:
2890
        ret = get_errno(getppid());
2891
        break;
2892
#endif
2893
    case TARGET_NR_getpgrp:
2894
        ret = get_errno(getpgrp());
2895
        break;
2896
    case TARGET_NR_setsid:
2897
        ret = get_errno(setsid());
2898
        break;
2899
#ifdef TARGET_NR_sigaction
2900
    case TARGET_NR_sigaction:
2901
        {
2902
#if !defined(TARGET_MIPS)
2903
            struct target_old_sigaction *old_act;
2904
            struct target_sigaction act, oact, *pact;
2905
            if (arg2) {
2906
                lock_user_struct(old_act, arg2, 1);
2907
                act._sa_handler = old_act->_sa_handler;
2908
                target_siginitset(&act.sa_mask, old_act->sa_mask);
2909
                act.sa_flags = old_act->sa_flags;
2910
                act.sa_restorer = old_act->sa_restorer;
2911
                unlock_user_struct(old_act, arg2, 0);
2912
                pact = &act;
2913
            } else {
2914
                pact = NULL;
2915
            }
2916
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2917
            if (!is_error(ret) && arg3) {
2918
                lock_user_struct(old_act, arg3, 0);
2919
                old_act->_sa_handler = oact._sa_handler;
2920
                old_act->sa_mask = oact.sa_mask.sig[0];
2921
                old_act->sa_flags = oact.sa_flags;
2922
                old_act->sa_restorer = oact.sa_restorer;
2923
                unlock_user_struct(old_act, arg3, 1);
2924
            }
2925
#else
2926
            struct target_sigaction act, oact, *pact, *old_act;
2927

    
2928
            if (arg2) {
2929
                lock_user_struct(old_act, arg2, 1);
2930
                act._sa_handler = old_act->_sa_handler;
2931
                target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
2932
                act.sa_flags = old_act->sa_flags;
2933
                unlock_user_struct(old_act, arg2, 0);
2934
                pact = &act;
2935
            } else {
2936
                pact = NULL;
2937
            }
2938

    
2939
            ret = get_errno(do_sigaction(arg1, pact, &oact));
2940

    
2941
            if (!is_error(ret) && arg3) {
2942
                lock_user_struct(old_act, arg3, 0);
2943
                old_act->_sa_handler = oact._sa_handler;
2944
                old_act->sa_flags = oact.sa_flags;
2945
                old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
2946
                old_act->sa_mask.sig[1] = 0;
2947
                old_act->sa_mask.sig[2] = 0;
2948
                old_act->sa_mask.sig[3] = 0;
2949
                unlock_user_struct(old_act, arg3, 1);
2950
            }
2951
#endif
2952
        }
2953
        break;
2954
#endif
2955
    case TARGET_NR_rt_sigaction:
2956
        {
2957
            struct target_sigaction *act;
2958
            struct target_sigaction *oact;
2959

    
2960
            if (arg2)
2961
                lock_user_struct(act, arg2, 1);
2962
            else
2963
                act = NULL;
2964
            if (arg3)
2965
                lock_user_struct(oact, arg3, 0);
2966
            else
2967
                oact = NULL;
2968
            ret = get_errno(do_sigaction(arg1, act, oact));
2969
            if (arg2)
2970
                unlock_user_struct(act, arg2, 0);
2971
            if (arg3)
2972
                unlock_user_struct(oact, arg3, 1);
2973
        }
2974
        break;
2975
#ifdef TARGET_NR_sgetmask /* not on alpha */
2976
    case TARGET_NR_sgetmask:
2977
        {
2978
            sigset_t cur_set;
2979
            target_ulong target_set;
2980
            sigprocmask(0, NULL, &cur_set);
2981
            host_to_target_old_sigset(&target_set, &cur_set);
2982
            ret = target_set;
2983
        }
2984
        break;
2985
#endif
2986
#ifdef TARGET_NR_ssetmask /* not on alpha */
2987
    case TARGET_NR_ssetmask:
2988
        {
2989
            sigset_t set, oset, cur_set;
2990
            target_ulong target_set = arg1;
2991
            sigprocmask(0, NULL, &cur_set);
2992
            target_to_host_old_sigset(&set, &target_set);
2993
            sigorset(&set, &set, &cur_set);
2994
            sigprocmask(SIG_SETMASK, &set, &oset);
2995
            host_to_target_old_sigset(&target_set, &oset);
2996
            ret = target_set;
2997
        }
2998
        break;
2999
#endif
3000
#ifdef TARGET_NR_sigprocmask
3001
    case TARGET_NR_sigprocmask:
3002
        {
3003
            int how = arg1;
3004
            sigset_t set, oldset, *set_ptr;
3005

    
3006
            if (arg2) {
3007
                switch(how) {
3008
                case TARGET_SIG_BLOCK:
3009
                    how = SIG_BLOCK;
3010
                    break;
3011
                case TARGET_SIG_UNBLOCK:
3012
                    how = SIG_UNBLOCK;
3013
                    break;
3014
                case TARGET_SIG_SETMASK:
3015
                    how = SIG_SETMASK;
3016
                    break;
3017
                default:
3018
                    ret = -EINVAL;
3019
                    goto fail;
3020
                }
3021
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
3022
                target_to_host_old_sigset(&set, p);
3023
                unlock_user(p, arg2, 0);
3024
                set_ptr = &set;
3025
            } else {
3026
                how = 0;
3027
                set_ptr = NULL;
3028
            }
3029
            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
3030
            if (!is_error(ret) && arg3) {
3031
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
3032
                host_to_target_old_sigset(p, &oldset);
3033
                unlock_user(p, arg3, sizeof(target_sigset_t));
3034
            }
3035
        }
3036
        break;
3037
#endif
3038
    case TARGET_NR_rt_sigprocmask:
3039
        {
3040
            int how = arg1;
3041
            sigset_t set, oldset, *set_ptr;
3042

    
3043
            if (arg2) {
3044
                switch(how) {
3045
                case TARGET_SIG_BLOCK:
3046
                    how = SIG_BLOCK;
3047
                    break;
3048
                case TARGET_SIG_UNBLOCK:
3049
                    how = SIG_UNBLOCK;
3050
                    break;
3051
                case TARGET_SIG_SETMASK:
3052
                    how = SIG_SETMASK;
3053
                    break;
3054
                default:
3055
                    ret = -EINVAL;
3056
                    goto fail;
3057
                }
3058
                p = lock_user(arg2, sizeof(target_sigset_t), 1);
3059
                target_to_host_sigset(&set, p);
3060
                unlock_user(p, arg2, 0);
3061
                set_ptr = &set;
3062
            } else {
3063
                how = 0;
3064
                set_ptr = NULL;
3065
            }
3066
            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
3067
            if (!is_error(ret) && arg3) {
3068
                p = lock_user(arg3, sizeof(target_sigset_t), 0);
3069
                host_to_target_sigset(p, &oldset);
3070
                unlock_user(p, arg3, sizeof(target_sigset_t));
3071
            }
3072
        }
3073
        break;
3074
#ifdef TARGET_NR_sigpending
3075
    case TARGET_NR_sigpending:
3076
        {
3077
            sigset_t set;
3078
            ret = get_errno(sigpending(&set));
3079
            if (!is_error(ret)) {
3080
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
3081
                host_to_target_old_sigset(p, &set);
3082
                unlock_user(p, arg1, sizeof(target_sigset_t));
3083
            }
3084
        }
3085
        break;
3086
#endif
3087
    case TARGET_NR_rt_sigpending:
3088
        {
3089
            sigset_t set;
3090
            ret = get_errno(sigpending(&set));
3091
            if (!is_error(ret)) {
3092
                p = lock_user(arg1, sizeof(target_sigset_t), 0);
3093
                host_to_target_sigset(p, &set);
3094
                unlock_user(p, arg1, sizeof(target_sigset_t));
3095
            }
3096
        }
3097
        break;
3098
#ifdef TARGET_NR_sigsuspend
3099
    case TARGET_NR_sigsuspend:
3100
        {
3101
            sigset_t set;
3102
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3103
            target_to_host_old_sigset(&set, p);
3104
            unlock_user(p, arg1, 0);
3105
            ret = get_errno(sigsuspend(&set));
3106
        }
3107
        break;
3108
#endif
3109
    case TARGET_NR_rt_sigsuspend:
3110
        {
3111
            sigset_t set;
3112
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3113
            target_to_host_sigset(&set, p);
3114
            unlock_user(p, arg1, 0);
3115
            ret = get_errno(sigsuspend(&set));
3116
        }
3117
        break;
3118
    case TARGET_NR_rt_sigtimedwait:
3119
        {
3120
            sigset_t set;
3121
            struct timespec uts, *puts;
3122
            siginfo_t uinfo;
3123

    
3124
            p = lock_user(arg1, sizeof(target_sigset_t), 1);
3125
            target_to_host_sigset(&set, p);
3126
            unlock_user(p, arg1, 0);
3127
            if (arg3) {
3128
                puts = &uts;
3129
                target_to_host_timespec(puts, arg3);
3130
            } else {
3131
                puts = NULL;
3132
            }
3133
            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
3134
            if (!is_error(ret) && arg2) {
3135
                p = lock_user(arg2, sizeof(target_sigset_t), 0);
3136
                host_to_target_siginfo(p, &uinfo);
3137
                unlock_user(p, arg2, sizeof(target_sigset_t));
3138
            }
3139
        }
3140
        break;
3141
    case TARGET_NR_rt_sigqueueinfo:
3142
        {
3143
            siginfo_t uinfo;
3144
            p = lock_user(arg3, sizeof(target_sigset_t), 1);
3145
            target_to_host_siginfo(&uinfo, p);
3146
            unlock_user(p, arg1, 0);
3147
            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
3148
        }
3149
        break;
3150
#ifdef TARGET_NR_sigreturn
3151
    case TARGET_NR_sigreturn:
3152
        /* NOTE: ret is eax, so not transcoding must be done */
3153
        ret = do_sigreturn(cpu_env);
3154
        break;
3155
#endif
3156
    case TARGET_NR_rt_sigreturn:
3157
        /* NOTE: ret is eax, so not transcoding must be done */
3158
        ret = do_rt_sigreturn(cpu_env);
3159
        break;
3160
    case TARGET_NR_sethostname:
3161
        p = lock_user_string(arg1);
3162
        ret = get_errno(sethostname(p, arg2));
3163
        unlock_user(p, arg1, 0);
3164
        break;
3165
    case TARGET_NR_setrlimit:
3166
        {
3167
            /* XXX: convert resource ? */
3168
            int resource = arg1;
3169
            struct target_rlimit *target_rlim;
3170
            struct rlimit rlim;
3171
            lock_user_struct(target_rlim, arg2, 1);
3172
            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3173
            rlim.rlim_max = tswapl(target_rlim->rlim_max);
3174
            unlock_user_struct(target_rlim, arg2, 0);
3175
            ret = get_errno(setrlimit(resource, &rlim));
3176
        }
3177
        break;
3178
    case TARGET_NR_getrlimit:
3179
        {
3180
            /* XXX: convert resource ? */
3181
            int resource = arg1;
3182
            struct target_rlimit *target_rlim;
3183
            struct rlimit rlim;
3184

    
3185
            ret = get_errno(getrlimit(resource, &rlim));
3186
            if (!is_error(ret)) {
3187
                lock_user_struct(target_rlim, arg2, 0);
3188
                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
3189
                rlim.rlim_max = tswapl(target_rlim->rlim_max);
3190
                unlock_user_struct(target_rlim, arg2, 1);
3191
            }
3192
        }
3193
        break;
3194
    case TARGET_NR_getrusage:
3195
        {
3196
            struct rusage rusage;
3197
            ret = get_errno(getrusage(arg1, &rusage));
3198
            if (!is_error(ret)) {
3199
                host_to_target_rusage(arg2, &rusage);
3200
            }
3201
        }
3202
        break;
3203
    case TARGET_NR_gettimeofday:
3204
        {
3205
            struct timeval tv;
3206
            ret = get_errno(gettimeofday(&tv, NULL));
3207
            if (!is_error(ret)) {
3208
                host_to_target_timeval(arg1, &tv);
3209
            }
3210
        }
3211
        break;
3212
    case TARGET_NR_settimeofday:
3213
        {
3214
            struct timeval tv;
3215
            target_to_host_timeval(&tv, arg1);
3216
            ret = get_errno(settimeofday(&tv, NULL));
3217
        }
3218
        break;
3219
#ifdef TARGET_NR_select
3220
    case TARGET_NR_select:
3221
        {
3222
            struct target_sel_arg_struct *sel;
3223
            target_ulong inp, outp, exp, tvp;
3224
            long nsel;
3225

    
3226
            lock_user_struct(sel, arg1, 1);
3227
            nsel = tswapl(sel->n);
3228
            inp = tswapl(sel->inp);
3229
            outp = tswapl(sel->outp);
3230
            exp = tswapl(sel->exp);
3231
            tvp = tswapl(sel->tvp);
3232
            unlock_user_struct(sel, arg1, 0);
3233
            ret = do_select(nsel, inp, outp, exp, tvp);
3234
        }
3235
        break;
3236
#endif
3237
    case TARGET_NR_symlink:
3238
        {
3239
            void *p2;
3240
            p = lock_user_string(arg1);
3241
            p2 = lock_user_string(arg2);
3242
            ret = get_errno(symlink(p, p2));
3243
            unlock_user(p2, arg2, 0);
3244
            unlock_user(p, arg1, 0);
3245
        }
3246
        break;
3247
#ifdef TARGET_NR_oldlstat
3248
    case TARGET_NR_oldlstat:
3249
        goto unimplemented;
3250
#endif
3251
    case TARGET_NR_readlink:
3252
        {
3253
            void *p2;
3254
            p = lock_user_string(arg1);
3255
            p2 = lock_user(arg2, arg3, 0);
3256
            ret = get_errno(readlink(path(p), p2, arg3));
3257
            unlock_user(p2, arg2, ret);
3258
            unlock_user(p, arg1, 0);
3259
        }
3260
        break;
3261
#ifdef TARGET_NR_uselib
3262
    case TARGET_NR_uselib:
3263
        goto unimplemented;
3264
#endif
3265
#ifdef TARGET_NR_swapon
3266
    case TARGET_NR_swapon:
3267
        p = lock_user_string(arg1);
3268
        ret = get_errno(swapon(p, arg2));
3269
        unlock_user(p, arg1, 0);
3270
        break;
3271
#endif
3272
    case TARGET_NR_reboot:
3273
        goto unimplemented;
3274
#ifdef TARGET_NR_readdir
3275
    case TARGET_NR_readdir:
3276
        goto unimplemented;
3277
#endif
3278
#ifdef TARGET_NR_mmap
3279
    case TARGET_NR_mmap:
3280
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
3281
        {
3282
            target_ulong *v;
3283
            target_ulong v1, v2, v3, v4, v5, v6;
3284
            v = lock_user(arg1, 6 * sizeof(target_ulong), 1);
3285
            v1 = tswapl(v[0]);
3286
            v2 = tswapl(v[1]);
3287
            v3 = tswapl(v[2]);
3288
            v4 = tswapl(v[3]);
3289
            v5 = tswapl(v[4]);
3290
            v6 = tswapl(v[5]);
3291
            unlock_user(v, arg1, 0);
3292
            ret = get_errno(target_mmap(v1, v2, v3,
3293
                                        target_to_host_bitmask(v4, mmap_flags_tbl),
3294
                                        v5, v6));
3295
        }
3296
#else
3297
        ret = get_errno(target_mmap(arg1, arg2, arg3,
3298
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
3299
                                    arg5,
3300
                                    arg6));
3301
#endif
3302
        break;
3303
#endif
3304
#ifdef TARGET_NR_mmap2
3305
    case TARGET_NR_mmap2:
3306
#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
3307
#define MMAP_SHIFT 12
3308
#else
3309
#define MMAP_SHIFT TARGET_PAGE_BITS
3310
#endif
3311
        ret = get_errno(target_mmap(arg1, arg2, arg3,
3312
                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
3313
                                    arg5,
3314
                                    arg6 << MMAP_SHIFT));
3315
        break;
3316
#endif
3317
    case TARGET_NR_munmap:
3318
        ret = get_errno(target_munmap(arg1, arg2));
3319
        break;
3320
    case TARGET_NR_mprotect:
3321
        ret = get_errno(target_mprotect(arg1, arg2, arg3));
3322
        break;
3323
#ifdef TARGET_NR_mremap
3324
    case TARGET_NR_mremap:
3325
        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
3326
        break;
3327
#endif
3328
        /* ??? msync/mlock/munlock are broken for softmmu.  */
3329
#ifdef TARGET_NR_msync
3330
    case TARGET_NR_msync:
3331
        ret = get_errno(msync(g2h(arg1), arg2, arg3));
3332
        break;
3333
#endif
3334
#ifdef TARGET_NR_mlock
3335
    case TARGET_NR_mlock:
3336
        ret = get_errno(mlock(g2h(arg1), arg2));
3337
        break;
3338
#endif
3339
#ifdef TARGET_NR_munlock
3340
    case TARGET_NR_munlock:
3341
        ret = get_errno(munlock(g2h(arg1), arg2));
3342
        break;
3343
#endif
3344
#ifdef TARGET_NR_mlockall
3345
    case TARGET_NR_mlockall:
3346
        ret = get_errno(mlockall(arg1));
3347
        break;
3348
#endif
3349
#ifdef TARGET_NR_munlockall
3350
    case TARGET_NR_munlockall:
3351
        ret = get_errno(munlockall());
3352
        break;
3353
#endif
3354
    case TARGET_NR_truncate:
3355
        p = lock_user_string(arg1);
3356
        ret = get_errno(truncate(p, arg2));
3357
        unlock_user(p, arg1, 0);
3358
        break;
3359
    case TARGET_NR_ftruncate:
3360
        ret = get_errno(ftruncate(arg1, arg2));
3361
        break;
3362
    case TARGET_NR_fchmod:
3363
        ret = get_errno(fchmod(arg1, arg2));
3364
        break;
3365
    case TARGET_NR_getpriority:
3366
        ret = get_errno(getpriority(arg1, arg2));
3367
        break;
3368
    case TARGET_NR_setpriority:
3369
        ret = get_errno(setpriority(arg1, arg2, arg3));
3370
        break;
3371
#ifdef TARGET_NR_profil
3372
    case TARGET_NR_profil:
3373
        goto unimplemented;
3374
#endif
3375
    case TARGET_NR_statfs:
3376
        p = lock_user_string(arg1);
3377
        ret = get_errno(statfs(path(p), &stfs));
3378
        unlock_user(p, arg1, 0);
3379
    convert_statfs:
3380
        if (!is_error(ret)) {
3381
            struct target_statfs *target_stfs;
3382

    
3383
            lock_user_struct(target_stfs, arg2, 0);
3384
            /* ??? put_user is probably wrong.  */
3385
            put_user(stfs.f_type, &target_stfs->f_type);
3386
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
3387
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
3388
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
3389
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
3390
            put_user(stfs.f_files, &target_stfs->f_files);
3391
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
3392
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
3393
            put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
3394
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
3395
            unlock_user_struct(target_stfs, arg2, 1);
3396
        }
3397
        break;
3398
    case TARGET_NR_fstatfs:
3399
        ret = get_errno(fstatfs(arg1, &stfs));
3400
        goto convert_statfs;
3401
#ifdef TARGET_NR_statfs64
3402
    case TARGET_NR_statfs64:
3403
        p = lock_user_string(arg1);
3404
        ret = get_errno(statfs(path(p), &stfs));
3405
        unlock_user(p, arg1, 0);
3406
    convert_statfs64:
3407
        if (!is_error(ret)) {
3408
            struct target_statfs64 *target_stfs;
3409

    
3410
            lock_user_struct(target_stfs, arg3, 0);
3411
            /* ??? put_user is probably wrong.  */
3412
            put_user(stfs.f_type, &target_stfs->f_type);
3413
            put_user(stfs.f_bsize, &target_stfs->f_bsize);
3414
            put_user(stfs.f_blocks, &target_stfs->f_blocks);
3415
            put_user(stfs.f_bfree, &target_stfs->f_bfree);
3416
            put_user(stfs.f_bavail, &target_stfs->f_bavail);
3417
            put_user(stfs.f_files, &target_stfs->f_files);
3418
            put_user(stfs.f_ffree, &target_stfs->f_ffree);
3419
            put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
3420
            put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
3421
            put_user(stfs.f_namelen, &target_stfs->f_namelen);
3422
            unlock_user_struct(target_stfs, arg3, 0);
3423
        }
3424
        break;
3425
    case TARGET_NR_fstatfs64:
3426
        ret = get_errno(fstatfs(arg1, &stfs));
3427
        goto convert_statfs64;
3428
#endif
3429
#ifdef TARGET_NR_ioperm
3430
    case TARGET_NR_ioperm:
3431
        goto unimplemented;
3432
#endif
3433
#ifdef TARGET_NR_socketcall
3434
    case TARGET_NR_socketcall:
3435
        ret = do_socketcall(arg1, arg2);
3436
        break;
3437
#endif
3438
#ifdef TARGET_NR_accept
3439
    case TARGET_NR_accept:
3440
        ret = do_accept(arg1, arg2, arg3);
3441
        break;
3442
#endif
3443
#ifdef TARGET_NR_bind
3444
    case TARGET_NR_bind:
3445
        ret = do_bind(arg1, arg2, arg3);
3446
        break;
3447
#endif
3448
#ifdef TARGET_NR_connect
3449
    case TARGET_NR_connect:
3450
        ret = do_connect(arg1, arg2, arg3);
3451
        break;
3452
#endif
3453
#ifdef TARGET_NR_getpeername
3454
    case TARGET_NR_getpeername:
3455
        ret = do_getpeername(arg1, arg2, arg3);
3456
        break;
3457
#endif
3458
#ifdef TARGET_NR_getsockname
3459
    case TARGET_NR_getsockname:
3460
        ret = do_getsockname(arg1, arg2, arg3);
3461
        break;
3462
#endif
3463
#ifdef TARGET_NR_getsockopt
3464
    case TARGET_NR_getsockopt:
3465
        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3466
        break;
3467
#endif
3468
#ifdef TARGET_NR_listen
3469
    case TARGET_NR_listen:
3470
        ret = get_errno(listen(arg1, arg2));
3471
        break;
3472
#endif
3473
#ifdef TARGET_NR_recv
3474
    case TARGET_NR_recv:
3475
        ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3476
        break;
3477
#endif
3478
#ifdef TARGET_NR_recvfrom
3479
    case TARGET_NR_recvfrom:
3480
        ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3481
        break;
3482
#endif
3483
#ifdef TARGET_NR_recvmsg
3484
    case TARGET_NR_recvmsg:
3485
        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
3486
        break;
3487
#endif
3488
#ifdef TARGET_NR_send
3489
    case TARGET_NR_send:
3490
        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3491
        break;
3492
#endif
3493
#ifdef TARGET_NR_sendmsg
3494
    case TARGET_NR_sendmsg:
3495
        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
3496
        break;
3497
#endif
3498
#ifdef TARGET_NR_sendto
3499
    case TARGET_NR_sendto:
3500
        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3501
        break;
3502
#endif
3503
#ifdef TARGET_NR_shutdown
3504
    case TARGET_NR_shutdown:
3505
        ret = get_errno(shutdown(arg1, arg2));
3506
        break;
3507
#endif
3508
#ifdef TARGET_NR_socket
3509
    case TARGET_NR_socket:
3510
        ret = do_socket(arg1, arg2, arg3);
3511
        break;
3512
#endif
3513
#ifdef TARGET_NR_socketpair
3514
    case TARGET_NR_socketpair:
3515
        ret = do_socketpair(arg1, arg2, arg3, arg4);
3516
        break;
3517
#endif
3518
#ifdef TARGET_NR_setsockopt
3519
    case TARGET_NR_setsockopt:
3520
        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3521
        break;
3522
#endif
3523

    
3524
    case TARGET_NR_syslog:
3525
        p = lock_user_string(arg2);
3526
        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
3527
        unlock_user(p, arg2, 0);
3528
        break;
3529

    
3530
    case TARGET_NR_setitimer:
3531
        {
3532
            struct itimerval value, ovalue, *pvalue;
3533

    
3534
            if (arg2) {
3535
                pvalue = &value;
3536
                target_to_host_timeval(&pvalue->it_interval,
3537
                                       arg2);
3538
                target_to_host_timeval(&pvalue->it_value,
3539
                                       arg2 + sizeof(struct target_timeval));
3540
            } else {
3541
                pvalue = NULL;
3542
            }
3543
            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
3544
            if (!is_error(ret) && arg3) {
3545
                host_to_target_timeval(arg3,
3546
                                       &ovalue.it_interval);
3547
                host_to_target_timeval(arg3 + sizeof(struct target_timeval),
3548
                                       &ovalue.it_value);
3549
            }
3550
        }
3551
        break;
3552
    case TARGET_NR_getitimer:
3553
        {
3554
            struct itimerval value;
3555

    
3556
            ret = get_errno(getitimer(arg1, &value));
3557
            if (!is_error(ret) && arg2) {
3558
                host_to_target_timeval(arg2,
3559
                                       &value.it_interval);
3560
                host_to_target_timeval(arg2 + sizeof(struct target_timeval),
3561
                                       &value.it_value);
3562
            }
3563
        }
3564
        break;
3565
    case TARGET_NR_stat:
3566
        p = lock_user_string(arg1);
3567
        ret = get_errno(stat(path(p), &st));
3568
        unlock_user(p, arg1, 0);
3569
        goto do_stat;
3570
    case TARGET_NR_lstat:
3571
        p = lock_user_string(arg1);
3572
        ret = get_errno(lstat(path(p), &st));
3573
        unlock_user(p, arg1, 0);
3574
        goto do_stat;
3575
    case TARGET_NR_fstat:
3576
        {
3577
            ret = get_errno(fstat(arg1, &st));
3578
        do_stat:
3579
            if (!is_error(ret)) {
3580
                struct target_stat *target_st;
3581

    
3582
                lock_user_struct(target_st, arg2, 0);
3583
#if defined(TARGET_MIPS) || defined(TARGET_SPARC64)
3584
                target_st->st_dev = tswap32(st.st_dev);
3585
#else
3586
                target_st->st_dev = tswap16(st.st_dev);
3587
#endif
3588
                target_st->st_ino = tswapl(st.st_ino);
3589
#if defined(TARGET_PPC) || defined(TARGET_MIPS)
3590
                target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
3591
                target_st->st_uid = tswap32(st.st_uid);
3592
                target_st->st_gid = tswap32(st.st_gid);
3593
#elif defined(TARGET_SPARC64)
3594
                target_st->st_mode = tswap32(st.st_mode);
3595
                target_st->st_uid = tswap32(st.st_uid);
3596
                target_st->st_gid = tswap32(st.st_gid);
3597
#else
3598
                target_st->st_mode = tswap16(st.st_mode);
3599
                target_st->st_uid = tswap16(st.st_uid);
3600
                target_st->st_gid = tswap16(st.st_gid);
3601
#endif
3602
#if defined(TARGET_MIPS)
3603
                /* If this is the same on PPC, then just merge w/ the above ifdef */
3604
                target_st->st_nlink = tswapl(st.st_nlink);
3605
                target_st->st_rdev = tswapl(st.st_rdev);
3606
#elif defined(TARGET_SPARC64)
3607
                target_st->st_nlink = tswap32(st.st_nlink);
3608
                target_st->st_rdev = tswap32(st.st_rdev);
3609
#else
3610
                target_st->st_nlink = tswap16(st.st_nlink);
3611
                target_st->st_rdev = tswap16(st.st_rdev);
3612
#endif
3613
                target_st->st_size = tswapl(st.st_size);
3614
                target_st->st_blksize = tswapl(st.st_blksize);
3615
                target_st->st_blocks = tswapl(st.st_blocks);
3616
                target_st->target_st_atime = tswapl(st.st_atime);
3617
                target_st->target_st_mtime = tswapl(st.st_mtime);
3618
                target_st->target_st_ctime = tswapl(st.st_ctime);
3619
                unlock_user_struct(target_st, arg2, 1);
3620
            }
3621
        }
3622
        break;
3623
#ifdef TARGET_NR_olduname
3624
    case TARGET_NR_olduname:
3625
        goto unimplemented;
3626
#endif
3627
#ifdef TARGET_NR_iopl
3628
    case TARGET_NR_iopl:
3629
        goto unimplemented;
3630
#endif
3631
    case TARGET_NR_vhangup:
3632
        ret = get_errno(vhangup());
3633
        break;
3634
#ifdef TARGET_NR_idle
3635
    case TARGET_NR_idle:
3636
        goto unimplemented;
3637
#endif
3638
#ifdef TARGET_NR_syscall
3639
    case TARGET_NR_syscall:
3640
            ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
3641
            break;
3642
#endif
3643
    case TARGET_NR_wait4:
3644
        {
3645
            int status;
3646
            target_long status_ptr = arg2;
3647
            struct rusage rusage, *rusage_ptr;
3648
            target_ulong target_rusage = arg4;
3649
            if (target_rusage)
3650
                rusage_ptr = &rusage;
3651
            else
3652
                rusage_ptr = NULL;
3653
            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
3654
            if (!is_error(ret)) {
3655
                if (status_ptr)
3656
                    tputl(status_ptr, status);
3657
                if (target_rusage) {
3658
                    host_to_target_rusage(target_rusage, &rusage);
3659
                }
3660
            }
3661
        }
3662
        break;
3663
#ifdef TARGET_NR_swapoff
3664
    case TARGET_NR_swapoff:
3665
        p = lock_user_string(arg1);
3666
        ret = get_errno(swapoff(p));
3667
        unlock_user(p, arg1, 0);
3668
        break;
3669
#endif
3670
    case TARGET_NR_sysinfo:
3671
        {
3672
            struct target_sysinfo *target_value;
3673
            struct sysinfo value;
3674
            ret = get_errno(sysinfo(&value));
3675
            if (!is_error(ret) && arg1)
3676
            {
3677
                /* ??? __put_user is probably wrong.  */
3678
                lock_user_struct(target_value, arg1, 0);
3679
                __put_user(value.uptime, &target_value->uptime);
3680
                __put_user(value.loads[0], &target_value->loads[0]);
3681
                __put_user(value.loads[1], &target_value->loads[1]);
3682
                __put_user(value.loads[2], &target_value->loads[2]);
3683
                __put_user(value.totalram, &target_value->totalram);
3684
                __put_user(value.freeram, &target_value->freeram);
3685
                __put_user(value.sharedram, &target_value->sharedram);
3686
                __put_user(value.bufferram, &target_value->bufferram);
3687
                __put_user(value.totalswap, &target_value->totalswap);
3688
                __put_user(value.freeswap, &target_value->freeswap);
3689
                __put_user(value.procs, &target_value->procs);
3690
                __put_user(value.totalhigh, &target_value->totalhigh);
3691
                __put_user(value.freehigh, &target_value->freehigh);
3692
                __put_user(value.mem_unit, &target_value->mem_unit);
3693
                unlock_user_struct(target_value, arg1, 1);
3694
            }
3695
        }
3696
        break;
3697
#ifdef TARGET_NR_ipc
3698
    case TARGET_NR_ipc:
3699
        ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
3700
        break;
3701
#endif
3702
    case TARGET_NR_fsync:
3703
        ret = get_errno(fsync(arg1));
3704
        break;
3705
    case TARGET_NR_clone:
3706
        ret = get_errno(do_fork(cpu_env, arg1, arg2));
3707
        break;
3708
#ifdef __NR_exit_group
3709
        /* new thread calls */
3710
    case TARGET_NR_exit_group:
3711
        gdb_exit(cpu_env, arg1);
3712
        ret = get_errno(exit_group(arg1));
3713
        break;
3714
#endif
3715
    case TARGET_NR_setdomainname:
3716
        p = lock_user_string(arg1);
3717
        ret = get_errno(setdomainname(p, arg2));
3718
        unlock_user(p, arg1, 0);
3719
        break;
3720
    case TARGET_NR_uname:
3721
        /* no need to transcode because we use the linux syscall */
3722
        {
3723
            struct new_utsname * buf;
3724

    
3725
            lock_user_struct(buf, arg1, 0);
3726
            ret = get_errno(sys_uname(buf));
3727
            if (!is_error(ret)) {
3728
                /* Overrite the native machine name with whatever is being
3729
                   emulated. */
3730
                strcpy (buf->machine, UNAME_MACHINE);
3731
                /* Allow the user to override the reported release.  */
3732
                if (qemu_uname_release && *qemu_uname_release)
3733
                  strcpy (buf->release, qemu_uname_release);
3734
            }
3735
            unlock_user_struct(buf, arg1, 1);
3736
        }
3737
        break;
3738
#ifdef TARGET_I386
3739
    case TARGET_NR_modify_ldt:
3740
        ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3));
3741
        break;
3742
#if !defined(TARGET_X86_64)
3743
    case TARGET_NR_vm86old:
3744
        goto unimplemented;
3745
    case TARGET_NR_vm86:
3746
        ret = do_vm86(cpu_env, arg1, arg2);
3747
        break;
3748
#endif
3749
#endif
3750
    case TARGET_NR_adjtimex:
3751
        goto unimplemented;
3752
#ifdef TARGET_NR_create_module
3753
    case TARGET_NR_create_module:
3754
#endif
3755
    case TARGET_NR_init_module:
3756
    case TARGET_NR_delete_module:
3757
#ifdef TARGET_NR_get_kernel_syms
3758
    case TARGET_NR_get_kernel_syms:
3759
#endif
3760
        goto unimplemented;
3761
    case TARGET_NR_quotactl:
3762
        goto unimplemented;
3763
    case TARGET_NR_getpgid:
3764
        ret = get_errno(getpgid(arg1));
3765
        break;
3766
    case TARGET_NR_fchdir:
3767
        ret = get_errno(fchdir(arg1));
3768
        break;
3769
#ifdef TARGET_NR_bdflush /* not on x86_64 */
3770
    case TARGET_NR_bdflush:
3771
        goto unimplemented;
3772
#endif
3773
#ifdef TARGET_NR_sysfs
3774
    case TARGET_NR_sysfs:
3775
        goto unimplemented;
3776
#endif
3777
    case TARGET_NR_personality:
3778
        ret = get_errno(personality(arg1));
3779
        break;
3780
#ifdef TARGET_NR_afs_syscall
3781
    case TARGET_NR_afs_syscall:
3782
        goto unimplemented;
3783
#endif
3784
#ifdef TARGET_NR__llseek /* Not on alpha */
3785
    case TARGET_NR__llseek:
3786
        {
3787
#if defined (__x86_64__)
3788
            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
3789
            tput64(arg4, ret);
3790
#else
3791
            int64_t res;
3792
            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
3793
            tput64(arg4, res);
3794
#endif
3795
        }
3796
        break;
3797
#endif
3798
    case TARGET_NR_getdents:
3799
#if TARGET_LONG_SIZE != 4
3800
        goto unimplemented;
3801
#warning not supported
3802
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
3803
        {
3804
            struct target_dirent *target_dirp;
3805
            struct dirent *dirp;
3806
            long count = arg3;
3807

    
3808
            dirp = malloc(count);
3809
            if (!dirp)
3810
                return -ENOMEM;
3811

    
3812
            ret = get_errno(sys_getdents(arg1, dirp, count));
3813
            if (!is_error(ret)) {
3814
                struct dirent *de;
3815
                struct target_dirent *tde;
3816
                int len = ret;
3817
                int reclen, treclen;
3818
                int count1, tnamelen;
3819

    
3820
                count1 = 0;
3821
                de = dirp;
3822
                target_dirp = lock_user(arg2, count, 0);
3823
                tde = target_dirp;
3824
                while (len > 0) {
3825
                    reclen = de->d_reclen;
3826
                    treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
3827
                    tde->d_reclen = tswap16(treclen);
3828
                    tde->d_ino = tswapl(de->d_ino);
3829
                    tde->d_off = tswapl(de->d_off);
3830
                    tnamelen = treclen - (2 * sizeof(target_long) + 2);
3831
                    if (tnamelen > 256)
3832
                        tnamelen = 256;
3833
                    /* XXX: may not be correct */
3834
                    strncpy(tde->d_name, de->d_name, tnamelen);
3835
                    de = (struct dirent *)((char *)de + reclen);
3836
                    len -= reclen;
3837
                    tde = (struct target_dirent *)((char *)tde + treclen);
3838
                    count1 += treclen;
3839
                }
3840
                ret = count1;
3841
            }
3842
            unlock_user(target_dirp, arg2, ret);
3843
            free(dirp);
3844
        }
3845
#else
3846
        {
3847
            struct dirent *dirp;
3848
            long count = arg3;
3849

    
3850
            dirp = lock_user(arg2, count, 0);
3851
            ret = get_errno(sys_getdents(arg1, dirp, count));
3852
            if (!is_error(ret)) {
3853
                struct dirent *de;
3854
                int len = ret;
3855
                int reclen;
3856
                de = dirp;
3857
                while (len > 0) {
3858
                    reclen = de->d_reclen;
3859
                    if (reclen > len)
3860
                        break;
3861
                    de->d_reclen = tswap16(reclen);
3862
                    tswapls(&de->d_ino);
3863
                    tswapls(&de->d_off);
3864
                    de = (struct dirent *)((char *)de + reclen);
3865
                    len -= reclen;
3866
                }
3867
            }
3868
            unlock_user(dirp, arg2, ret);
3869
        }
3870
#endif
3871
        break;
3872
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
3873
    case TARGET_NR_getdents64:
3874
        {
3875
            struct dirent64 *dirp;
3876
            long count = arg3;
3877
            dirp = lock_user(arg2, count, 0);
3878
            ret = get_errno(sys_getdents64(arg1, dirp, count));
3879
            if (!is_error(ret)) {
3880
                struct dirent64 *de;
3881
                int len = ret;
3882
                int reclen;
3883
                de = dirp;
3884
                while (len > 0) {
3885
                    reclen = de->d_reclen;
3886
                    if (reclen > len)
3887
                        break;
3888
                    de->d_reclen = tswap16(reclen);
3889
                    tswap64s(&de->d_ino);
3890
                    tswap64s(&de->d_off);
3891
                    de = (struct dirent64 *)((char *)de + reclen);
3892
                    len -= reclen;
3893
                }
3894
            }
3895
            unlock_user(dirp, arg2, ret);
3896
        }
3897
        break;
3898
#endif /* TARGET_NR_getdents64 */
3899
#ifdef TARGET_NR__newselect
3900
    case TARGET_NR__newselect:
3901
        ret = do_select(arg1, arg2, arg3, arg4, arg5);
3902
        break;
3903
#endif
3904
#ifdef TARGET_NR_poll
3905
    case TARGET_NR_poll:
3906
        {
3907
            struct target_pollfd *target_pfd;
3908
            unsigned int nfds = arg2;
3909
            int timeout = arg3;
3910
            struct pollfd *pfd;
3911
            unsigned int i;
3912

    
3913
            target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1);
3914
            pfd = alloca(sizeof(struct pollfd) * nfds);
3915
            for(i = 0; i < nfds; i++) {
3916
                pfd[i].fd = tswap32(target_pfd[i].fd);
3917
                pfd[i].events = tswap16(target_pfd[i].events);
3918
            }
3919
            ret = get_errno(poll(pfd, nfds, timeout));
3920
            if (!is_error(ret)) {
3921
                for(i = 0; i < nfds; i++) {
3922
                    target_pfd[i].revents = tswap16(pfd[i].revents);
3923
                }
3924
                ret += nfds * (sizeof(struct target_pollfd)
3925
                               - sizeof(struct pollfd));
3926
            }
3927
            unlock_user(target_pfd, arg1, ret);
3928
        }
3929
        break;
3930
#endif
3931
    case TARGET_NR_flock:
3932
        /* NOTE: the flock constant seems to be the same for every
3933
           Linux platform */
3934
        ret = get_errno(flock(arg1, arg2));
3935
        break;
3936
    case TARGET_NR_readv:
3937
        {
3938
            int count = arg3;
3939
            struct iovec *vec;
3940

    
3941
            vec = alloca(count * sizeof(struct iovec));
3942
            lock_iovec(vec, arg2, count, 0);
3943
            ret = get_errno(readv(arg1, vec, count));
3944
            unlock_iovec(vec, arg2, count, 1);
3945
        }
3946
        break;
3947
    case TARGET_NR_writev:
3948
        {
3949
            int count = arg3;
3950
            struct iovec *vec;
3951

    
3952
            vec = alloca(count * sizeof(struct iovec));
3953
            lock_iovec(vec, arg2, count, 1);
3954
            ret = get_errno(writev(arg1, vec, count));
3955
            unlock_iovec(vec, arg2, count, 0);
3956
        }
3957
        break;
3958
    case TARGET_NR_getsid:
3959
        ret = get_errno(getsid(arg1));
3960
        break;
3961
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
3962
    case TARGET_NR_fdatasync:
3963
        ret = get_errno(fdatasync(arg1));
3964
        break;
3965
#endif
3966
    case TARGET_NR__sysctl:
3967
        /* We don't implement this, but ENODIR is always a safe
3968
           return value. */
3969
        return -ENOTDIR;
3970
    case TARGET_NR_sched_setparam:
3971
        {
3972
            struct sched_param *target_schp;
3973
            struct sched_param schp;
3974

    
3975
            lock_user_struct(target_schp, arg2, 1);
3976
            schp.sched_priority = tswap32(target_schp->sched_priority);
3977
            unlock_user_struct(target_schp, arg2, 0);
3978
            ret = get_errno(sched_setparam(arg1, &schp));
3979
        }
3980
        break;
3981
    case TARGET_NR_sched_getparam:
3982
        {
3983
            struct sched_param *target_schp;
3984
            struct sched_param schp;
3985
            ret = get_errno(sched_getparam(arg1, &schp));
3986
            if (!is_error(ret)) {
3987
                lock_user_struct(target_schp, arg2, 0);
3988
                target_schp->sched_priority = tswap32(schp.sched_priority);
3989
                unlock_user_struct(target_schp, arg2, 1);
3990
            }
3991
        }
3992
        break;
3993
    case TARGET_NR_sched_setscheduler:
3994
        {
3995
            struct sched_param *target_schp;
3996
            struct sched_param schp;
3997
            lock_user_struct(target_schp, arg3, 1);
3998
            schp.sched_priority = tswap32(target_schp->sched_priority);
3999
            unlock_user_struct(target_schp, arg3, 0);
4000
            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
4001
        }
4002
        break;
4003
    case TARGET_NR_sched_getscheduler:
4004
        ret = get_errno(sched_getscheduler(arg1));
4005
        break;
4006
    case TARGET_NR_sched_yield:
4007
        ret = get_errno(sched_yield());
4008
        break;
4009
    case TARGET_NR_sched_get_priority_max:
4010
        ret = get_errno(sched_get_priority_max(arg1));
4011
        break;
4012
    case TARGET_NR_sched_get_priority_min:
4013
        ret = get_errno(sched_get_priority_min(arg1));
4014
        break;
4015
    case TARGET_NR_sched_rr_get_interval:
4016
        {
4017
            struct timespec ts;
4018
            ret = get_errno(sched_rr_get_interval(arg1, &ts));
4019
            if (!is_error(ret)) {
4020
                host_to_target_timespec(arg2, &ts);
4021
            }
4022
        }
4023
        break;
4024
    case TARGET_NR_nanosleep:
4025
        {
4026
            struct timespec req, rem;
4027
            target_to_host_timespec(&req, arg1);
4028
            ret = get_errno(nanosleep(&req, &rem));
4029
            if (is_error(ret) && arg2) {
4030
                host_to_target_timespec(arg2, &rem);
4031
            }
4032
        }
4033
        break;
4034
#ifdef TARGET_NR_query_module
4035
    case TARGET_NR_query_module:
4036
        goto unimplemented;
4037
#endif
4038
#ifdef TARGET_NR_nfsservctl
4039
    case TARGET_NR_nfsservctl:
4040
        goto unimplemented;
4041
#endif
4042
    case TARGET_NR_prctl:
4043
        switch (arg1)
4044
            {
4045
            case PR_GET_PDEATHSIG:
4046
                {
4047
                    int deathsig;
4048
                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
4049
                    if (!is_error(ret) && arg2)
4050
                        tput32(arg2, deathsig);
4051
                }
4052
                break;
4053
            default:
4054
                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
4055
                break;
4056
            }
4057
        break;
4058
#ifdef TARGET_NR_pread
4059
    case TARGET_NR_pread:
4060
        page_unprotect_range(arg2, arg3);
4061
        p = lock_user(arg2, arg3, 0);
4062
        ret = get_errno(pread(arg1, p, arg3, arg4));
4063
        unlock_user(p, arg2, ret);
4064
        break;
4065
    case TARGET_NR_pwrite:
4066
        p = lock_user(arg2, arg3, 1);
4067
        ret = get_errno(pwrite(arg1, p, arg3, arg4));
4068
        unlock_user(p, arg2, 0);
4069
        break;
4070
#endif
4071
    case TARGET_NR_getcwd:
4072
        p = lock_user(arg1, arg2, 0);
4073
        ret = get_errno(sys_getcwd1(p, arg2));
4074
        unlock_user(p, arg1, ret);
4075
        break;
4076
    case TARGET_NR_capget:
4077
        goto unimplemented;
4078
    case TARGET_NR_capset:
4079
        goto unimplemented;
4080
    case TARGET_NR_sigaltstack:
4081
        goto unimplemented;
4082
    case TARGET_NR_sendfile:
4083
        goto unimplemented;
4084
#ifdef TARGET_NR_getpmsg
4085
    case TARGET_NR_getpmsg:
4086
        goto unimplemented;
4087
#endif
4088
#ifdef TARGET_NR_putpmsg
4089
    case TARGET_NR_putpmsg:
4090
        goto unimplemented;
4091
#endif
4092
#ifdef TARGET_NR_vfork
4093
    case TARGET_NR_vfork:
4094
        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
4095
        break;
4096
#endif
4097
#ifdef TARGET_NR_ugetrlimit
4098
    case TARGET_NR_ugetrlimit:
4099
    {
4100
        struct rlimit rlim;
4101
        ret = get_errno(getrlimit(arg1, &rlim));
4102
        if (!is_error(ret)) {
4103
            struct target_rlimit *target_rlim;
4104
            lock_user_struct(target_rlim, arg2, 0);
4105
            target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
4106
            target_rlim->rlim_max = tswapl(rlim.rlim_max);
4107
            unlock_user_struct(target_rlim, arg2, 1);
4108
        }
4109
        break;
4110
    }
4111
#endif
4112
#ifdef TARGET_NR_truncate64
4113
    case TARGET_NR_truncate64:
4114
        p = lock_user_string(arg1);
4115
        ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
4116
        unlock_user(p, arg1, 0);
4117
        break;
4118
#endif
4119
#ifdef TARGET_NR_ftruncate64
4120
    case TARGET_NR_ftruncate64:
4121
        ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
4122
        break;
4123
#endif
4124
#ifdef TARGET_NR_stat64
4125
    case TARGET_NR_stat64:
4126
        p = lock_user_string(arg1);
4127
        ret = get_errno(stat(path(p), &st));
4128
        unlock_user(p, arg1, 0);
4129
        goto do_stat64;
4130
#endif
4131
#ifdef TARGET_NR_lstat64
4132
    case TARGET_NR_lstat64:
4133
        p = lock_user_string(arg1);
4134
        ret = get_errno(lstat(path(p), &st));
4135
        unlock_user(p, arg1, 0);
4136
        goto do_stat64;
4137
#endif
4138
#ifdef TARGET_NR_fstat64
4139
    case TARGET_NR_fstat64:
4140
        {
4141
            ret = get_errno(fstat(arg1, &st));
4142
        do_stat64:
4143
            if (!is_error(ret)) {
4144
#ifdef TARGET_ARM
4145
                if (((CPUARMState *)cpu_env)->eabi) {
4146
                    struct target_eabi_stat64 *target_st;
4147
                    lock_user_struct(target_st, arg2, 1);
4148
                    memset(target_st, 0, sizeof(struct target_eabi_stat64));
4149
                    /* put_user is probably wrong.  */
4150
                    put_user(st.st_dev, &target_st->st_dev);
4151
                    put_user(st.st_ino, &target_st->st_ino);
4152
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4153
                    put_user(st.st_ino, &target_st->__st_ino);
4154
#endif
4155
                    put_user(st.st_mode, &target_st->st_mode);
4156
                    put_user(st.st_nlink, &target_st->st_nlink);
4157
                    put_user(st.st_uid, &target_st->st_uid);
4158
                    put_user(st.st_gid, &target_st->st_gid);
4159
                    put_user(st.st_rdev, &target_st->st_rdev);
4160
                    /* XXX: better use of kernel struct */
4161
                    put_user(st.st_size, &target_st->st_size);
4162
                    put_user(st.st_blksize, &target_st->st_blksize);
4163
                    put_user(st.st_blocks, &target_st->st_blocks);
4164
                    put_user(st.st_atime, &target_st->target_st_atime);
4165
                    put_user(st.st_mtime, &target_st->target_st_mtime);
4166
                    put_user(st.st_ctime, &target_st->target_st_ctime);
4167
                    unlock_user_struct(target_st, arg2, 0);
4168
                } else
4169
#endif
4170
                {
4171
                    struct target_stat64 *target_st;
4172
                    lock_user_struct(target_st, arg2, 1);
4173
                    memset(target_st, 0, sizeof(struct target_stat64));
4174
                    /* ??? put_user is probably wrong.  */
4175
                    put_user(st.st_dev, &target_st->st_dev);
4176
                    put_user(st.st_ino, &target_st->st_ino);
4177
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4178
                    put_user(st.st_ino, &target_st->__st_ino);
4179
#endif
4180
                    put_user(st.st_mode, &target_st->st_mode);
4181
                    put_user(st.st_nlink, &target_st->st_nlink);
4182
                    put_user(st.st_uid, &target_st->st_uid);
4183
                    put_user(st.st_gid, &target_st->st_gid);
4184
                    put_user(st.st_rdev, &target_st->st_rdev);
4185
                    /* XXX: better use of kernel struct */
4186
                    put_user(st.st_size, &target_st->st_size);
4187
                    put_user(st.st_blksize, &target_st->st_blksize);
4188
                    put_user(st.st_blocks, &target_st->st_blocks);
4189
                    put_user(st.st_atime, &target_st->target_st_atime);
4190
                    put_user(st.st_mtime, &target_st->target_st_mtime);
4191
                    put_user(st.st_ctime, &target_st->target_st_ctime);
4192
                    unlock_user_struct(target_st, arg2, 0);
4193
                }
4194
            }
4195
        }
4196
        break;
4197
#endif
4198
#ifdef USE_UID16
4199
    case TARGET_NR_lchown:
4200
        p = lock_user_string(arg1);
4201
        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
4202
        unlock_user(p, arg1, 0);
4203
        break;
4204
    case TARGET_NR_getuid:
4205
        ret = get_errno(high2lowuid(getuid()));
4206
        break;
4207
    case TARGET_NR_getgid:
4208
        ret = get_errno(high2lowgid(getgid()));
4209
        break;
4210
    case TARGET_NR_geteuid:
4211
        ret = get_errno(high2lowuid(geteuid()));
4212
        break;
4213
    case TARGET_NR_getegid:
4214
        ret = get_errno(high2lowgid(getegid()));
4215
        break;
4216
    case TARGET_NR_setreuid:
4217
        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
4218
        break;
4219
    case TARGET_NR_setregid:
4220
        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
4221
        break;
4222
    case TARGET_NR_getgroups:
4223
        {
4224
            int gidsetsize = arg1;
4225
            uint16_t *target_grouplist;
4226
            gid_t *grouplist;
4227
            int i;
4228

    
4229
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4230
            ret = get_errno(getgroups(gidsetsize, grouplist));
4231
            if (!is_error(ret)) {
4232
                target_grouplist = lock_user(arg2, gidsetsize * 2, 0);
4233
                for(i = 0;i < gidsetsize; i++)
4234
                    target_grouplist[i] = tswap16(grouplist[i]);
4235
                unlock_user(target_grouplist, arg2, gidsetsize * 2);
4236
            }
4237
        }
4238
        break;
4239
    case TARGET_NR_setgroups:
4240
        {
4241
            int gidsetsize = arg1;
4242
            uint16_t *target_grouplist;
4243
            gid_t *grouplist;
4244
            int i;
4245

    
4246
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4247
            target_grouplist = lock_user(arg2, gidsetsize * 2, 1);
4248
            for(i = 0;i < gidsetsize; i++)
4249
                grouplist[i] = tswap16(target_grouplist[i]);
4250
            unlock_user(target_grouplist, arg2, 0);
4251
            ret = get_errno(setgroups(gidsetsize, grouplist));
4252
        }
4253
        break;
4254
    case TARGET_NR_fchown:
4255
        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
4256
        break;
4257
#ifdef TARGET_NR_setresuid
4258
    case TARGET_NR_setresuid:
4259
        ret = get_errno(setresuid(low2highuid(arg1),
4260
                                  low2highuid(arg2),
4261
                                  low2highuid(arg3)));
4262
        break;
4263
#endif
4264
#ifdef TARGET_NR_getresuid
4265
    case TARGET_NR_getresuid:
4266
        {
4267
            uid_t ruid, euid, suid;
4268
            ret = get_errno(getresuid(&ruid, &euid, &suid));
4269
            if (!is_error(ret)) {
4270
                tput16(arg1, tswap16(high2lowuid(ruid)));
4271
                tput16(arg2, tswap16(high2lowuid(euid)));
4272
                tput16(arg3, tswap16(high2lowuid(suid)));
4273
            }
4274
        }
4275
        break;
4276
#endif
4277
#ifdef TARGET_NR_getresgid
4278
    case TARGET_NR_setresgid:
4279
        ret = get_errno(setresgid(low2highgid(arg1),
4280
                                  low2highgid(arg2),
4281
                                  low2highgid(arg3)));
4282
        break;
4283
#endif
4284
#ifdef TARGET_NR_getresgid
4285
    case TARGET_NR_getresgid:
4286
        {
4287
            gid_t rgid, egid, sgid;
4288
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
4289
            if (!is_error(ret)) {
4290
                tput16(arg1, tswap16(high2lowgid(rgid)));
4291
                tput16(arg2, tswap16(high2lowgid(egid)));
4292
                tput16(arg3, tswap16(high2lowgid(sgid)));
4293
            }
4294
        }
4295
        break;
4296
#endif
4297
    case TARGET_NR_chown:
4298
        p = lock_user_string(arg1);
4299
        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
4300
        unlock_user(p, arg1, 0);
4301
        break;
4302
    case TARGET_NR_setuid:
4303
        ret = get_errno(setuid(low2highuid(arg1)));
4304
        break;
4305
    case TARGET_NR_setgid:
4306
        ret = get_errno(setgid(low2highgid(arg1)));
4307
        break;
4308
    case TARGET_NR_setfsuid:
4309
        ret = get_errno(setfsuid(arg1));
4310
        break;
4311
    case TARGET_NR_setfsgid:
4312
        ret = get_errno(setfsgid(arg1));
4313
        break;
4314
#endif /* USE_UID16 */
4315

    
4316
#ifdef TARGET_NR_lchown32
4317
    case TARGET_NR_lchown32:
4318
        p = lock_user_string(arg1);
4319
        ret = get_errno(lchown(p, arg2, arg3));
4320
        unlock_user(p, arg1, 0);
4321
        break;
4322
#endif
4323
#ifdef TARGET_NR_getuid32
4324
    case TARGET_NR_getuid32:
4325
        ret = get_errno(getuid());
4326
        break;
4327
#endif
4328
#ifdef TARGET_NR_getgid32
4329
    case TARGET_NR_getgid32:
4330
        ret = get_errno(getgid());
4331
        break;
4332
#endif
4333
#ifdef TARGET_NR_geteuid32
4334
    case TARGET_NR_geteuid32:
4335
        ret = get_errno(geteuid());
4336
        break;
4337
#endif
4338
#ifdef TARGET_NR_getegid32
4339
    case TARGET_NR_getegid32:
4340
        ret = get_errno(getegid());
4341
        break;
4342
#endif
4343
#ifdef TARGET_NR_setreuid32
4344
    case TARGET_NR_setreuid32:
4345
        ret = get_errno(setreuid(arg1, arg2));
4346
        break;
4347
#endif
4348
#ifdef TARGET_NR_setregid32
4349
    case TARGET_NR_setregid32:
4350
        ret = get_errno(setregid(arg1, arg2));
4351
        break;
4352
#endif
4353
#ifdef TARGET_NR_getgroups32
4354
    case TARGET_NR_getgroups32:
4355
        {
4356
            int gidsetsize = arg1;
4357
            uint32_t *target_grouplist;
4358
            gid_t *grouplist;
4359
            int i;
4360

    
4361
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4362
            ret = get_errno(getgroups(gidsetsize, grouplist));
4363
            if (!is_error(ret)) {
4364
                target_grouplist = lock_user(arg2, gidsetsize * 4, 0);
4365
                for(i = 0;i < gidsetsize; i++)
4366
                    target_grouplist[i] = tswap32(grouplist[i]);
4367
                unlock_user(target_grouplist, arg2, gidsetsize * 4);
4368
            }
4369
        }
4370
        break;
4371
#endif
4372
#ifdef TARGET_NR_setgroups32
4373
    case TARGET_NR_setgroups32:
4374
        {
4375
            int gidsetsize = arg1;
4376
            uint32_t *target_grouplist;
4377
            gid_t *grouplist;
4378
            int i;
4379

    
4380
            grouplist = alloca(gidsetsize * sizeof(gid_t));
4381
            target_grouplist = lock_user(arg2, gidsetsize * 4, 1);
4382
            for(i = 0;i < gidsetsize; i++)
4383
                grouplist[i] = tswap32(target_grouplist[i]);
4384
            unlock_user(target_grouplist, arg2, 0);
4385
            ret = get_errno(setgroups(gidsetsize, grouplist));
4386
        }
4387
        break;
4388
#endif
4389
#ifdef TARGET_NR_fchown32
4390
    case TARGET_NR_fchown32:
4391
        ret = get_errno(fchown(arg1, arg2, arg3));
4392
        break;
4393
#endif
4394
#ifdef TARGET_NR_setresuid32
4395
    case TARGET_NR_setresuid32:
4396
        ret = get_errno(setresuid(arg1, arg2, arg3));
4397
        break;
4398
#endif
4399
#ifdef TARGET_NR_getresuid32
4400
    case TARGET_NR_getresuid32:
4401
        {
4402
            uid_t ruid, euid, suid;
4403
            ret = get_errno(getresuid(&ruid, &euid, &suid));
4404
            if (!is_error(ret)) {
4405
                tput32(arg1, tswap32(ruid));
4406
                tput32(arg2, tswap32(euid));
4407
                tput32(arg3, tswap32(suid));
4408
            }
4409
        }
4410
        break;
4411
#endif
4412
#ifdef TARGET_NR_setresgid32
4413
    case TARGET_NR_setresgid32:
4414
        ret = get_errno(setresgid(arg1, arg2, arg3));
4415
        break;
4416
#endif
4417
#ifdef TARGET_NR_getresgid32
4418
    case TARGET_NR_getresgid32:
4419
        {
4420
            gid_t rgid, egid, sgid;
4421
            ret = get_errno(getresgid(&rgid, &egid, &sgid));
4422
            if (!is_error(ret)) {
4423
                tput32(arg1, tswap32(rgid));
4424
                tput32(arg2, tswap32(egid));
4425
                tput32(arg3, tswap32(sgid));
4426
            }
4427
        }
4428
        break;
4429
#endif
4430
#ifdef TARGET_NR_chown32
4431
    case TARGET_NR_chown32:
4432
        p = lock_user_string(arg1);
4433
        ret = get_errno(chown(p, arg2, arg3));
4434
        unlock_user(p, arg1, 0);
4435
        break;
4436
#endif
4437
#ifdef TARGET_NR_setuid32
4438
    case TARGET_NR_setuid32:
4439
        ret = get_errno(setuid(arg1));
4440
        break;
4441
#endif
4442
#ifdef TARGET_NR_setgid32
4443
    case TARGET_NR_setgid32:
4444
        ret = get_errno(setgid(arg1));
4445
        break;
4446
#endif
4447
#ifdef TARGET_NR_setfsuid32
4448
    case TARGET_NR_setfsuid32:
4449
        ret = get_errno(setfsuid(arg1));
4450
        break;
4451
#endif
4452
#ifdef TARGET_NR_setfsgid32
4453
    case TARGET_NR_setfsgid32:
4454
        ret = get_errno(setfsgid(arg1));
4455
        break;
4456
#endif
4457

    
4458
    case TARGET_NR_pivot_root:
4459
        goto unimplemented;
4460
#ifdef TARGET_NR_mincore
4461
    case TARGET_NR_mincore:
4462
        goto unimplemented;
4463
#endif
4464
#ifdef TARGET_NR_madvise
4465
    case TARGET_NR_madvise:
4466
        /* A straight passthrough may not be safe because qemu sometimes
4467
           turns private flie-backed mappings into anonymous mappings.
4468
           This will break MADV_DONTNEED.
4469
           This is a hint, so ignoring and returning success is ok.  */
4470
        ret = get_errno(0);
4471
        break;
4472
#endif
4473
#if TARGET_LONG_BITS == 32
4474
    case TARGET_NR_fcntl64:
4475
    {
4476
        int cmd;
4477
        struct flock64 fl;
4478
        struct target_flock64 *target_fl;
4479
#ifdef TARGET_ARM
4480
        struct target_eabi_flock64 *target_efl;
4481
#endif
4482

    
4483
        switch(arg2){
4484
        case TARGET_F_GETLK64:
4485
            cmd = F_GETLK64;
4486
            break;
4487
        case TARGET_F_SETLK64:
4488
            cmd = F_SETLK64;
4489
            break;
4490
        case TARGET_F_SETLKW64:
4491
            cmd = F_SETLK64;
4492
            break;
4493
        default:
4494
            cmd = arg2;
4495
            break;
4496
        }
4497

    
4498
        switch(arg2) {
4499
        case TARGET_F_GETLK64:
4500
#ifdef TARGET_ARM
4501
            if (((CPUARMState *)cpu_env)->eabi) {
4502
                lock_user_struct(target_efl, arg3, 1);
4503
                fl.l_type = tswap16(target_efl->l_type);
4504
                fl.l_whence = tswap16(target_efl->l_whence);
4505
                fl.l_start = tswap64(target_efl->l_start);
4506
                fl.l_len = tswap64(target_efl->l_len);
4507
                fl.l_pid = tswapl(target_efl->l_pid);
4508
                unlock_user_struct(target_efl, arg3, 0);
4509
            } else
4510
#endif
4511
            {
4512
                lock_user_struct(target_fl, arg3, 1);
4513
                fl.l_type = tswap16(target_fl->l_type);
4514
                fl.l_whence = tswap16(target_fl->l_whence);
4515
                fl.l_start = tswap64(target_fl->l_start);
4516
                fl.l_len = tswap64(target_fl->l_len);
4517
                fl.l_pid = tswapl(target_fl->l_pid);
4518
                unlock_user_struct(target_fl, arg3, 0);
4519
            }
4520
            ret = get_errno(fcntl(arg1, cmd, &fl));
4521
            if (ret == 0) {
4522
#ifdef TARGET_ARM
4523
                if (((CPUARMState *)cpu_env)->eabi) {
4524
                    lock_user_struct(target_efl, arg3, 0);
4525
                    target_efl->l_type = tswap16(fl.l_type);
4526
                    target_efl->l_whence = tswap16(fl.l_whence);
4527
                    target_efl->l_start = tswap64(fl.l_start);
4528
                    target_efl->l_len = tswap64(fl.l_len);
4529
                    target_efl->l_pid = tswapl(fl.l_pid);
4530
                    unlock_user_struct(target_efl, arg3, 1);
4531
                } else
4532
#endif
4533
                {
4534
                    lock_user_struct(target_fl, arg3, 0);
4535
                    target_fl->l_type = tswap16(fl.l_type);
4536
                    target_fl->l_whence = tswap16(fl.l_whence);
4537
                    target_fl->l_start = tswap64(fl.l_start);
4538
                    target_fl->l_len = tswap64(fl.l_len);
4539
                    target_fl->l_pid = tswapl(fl.l_pid);
4540
                    unlock_user_struct(target_fl, arg3, 1);
4541
                }
4542
            }
4543
            break;
4544

    
4545
        case TARGET_F_SETLK64:
4546
        case TARGET_F_SETLKW64:
4547
#ifdef TARGET_ARM
4548
            if (((CPUARMState *)cpu_env)->eabi) {
4549
                lock_user_struct(target_efl, arg3, 1);
4550
                fl.l_type = tswap16(target_efl->l_type);
4551
                fl.l_whence = tswap16(target_efl->l_whence);
4552
                fl.l_start = tswap64(target_efl->l_start);
4553
                fl.l_len = tswap64(target_efl->l_len);
4554
                fl.l_pid = tswapl(target_efl->l_pid);
4555
                unlock_user_struct(target_efl, arg3, 0);
4556
            } else
4557
#endif
4558
            {
4559
                lock_user_struct(target_fl, arg3, 1);
4560
                fl.l_type = tswap16(target_fl->l_type);
4561
                fl.l_whence = tswap16(target_fl->l_whence);
4562
                fl.l_start = tswap64(target_fl->l_start);
4563
                fl.l_len = tswap64(target_fl->l_len);
4564
                fl.l_pid = tswapl(target_fl->l_pid);
4565
                unlock_user_struct(target_fl, arg3, 0);
4566
            }
4567
            ret = get_errno(fcntl(arg1, cmd, &fl));
4568
            break;
4569
        default:
4570
            ret = get_errno(do_fcntl(arg1, cmd, arg3));
4571
            break;
4572
        }
4573
        break;
4574
    }
4575
#endif
4576
#ifdef TARGET_NR_cacheflush
4577
    case TARGET_NR_cacheflush:
4578
        /* self-modifying code is handled automatically, so nothing needed */
4579
        ret = 0;
4580
        break;
4581
#endif
4582
#ifdef TARGET_NR_security
4583
    case TARGET_NR_security:
4584
        goto unimplemented;
4585
#endif
4586
#ifdef TARGET_NR_getpagesize
4587
    case TARGET_NR_getpagesize:
4588
        ret = TARGET_PAGE_SIZE;
4589
        break;
4590
#endif
4591
    case TARGET_NR_gettid:
4592
        ret = get_errno(gettid());
4593
        break;
4594
#ifdef TARGET_NR_readahead
4595
    case TARGET_NR_readahead:
4596
        goto unimplemented;
4597
#endif
4598
#ifdef TARGET_NR_setxattr
4599
    case TARGET_NR_setxattr:
4600
    case TARGET_NR_lsetxattr:
4601
    case TARGET_NR_fsetxattr:
4602
    case TARGET_NR_getxattr:
4603
    case TARGET_NR_lgetxattr:
4604
    case TARGET_NR_fgetxattr:
4605
    case TARGET_NR_listxattr:
4606
    case TARGET_NR_llistxattr:
4607
    case TARGET_NR_flistxattr:
4608
    case TARGET_NR_removexattr:
4609
    case TARGET_NR_lremovexattr:
4610
    case TARGET_NR_fremovexattr:
4611
        goto unimplemented_nowarn;
4612
#endif
4613
#ifdef TARGET_NR_set_thread_area
4614
    case TARGET_NR_set_thread_area:
4615
#ifdef TARGET_MIPS
4616
      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
4617
      ret = 0;
4618
      break;
4619
#else
4620
      goto unimplemented_nowarn;
4621
#endif
4622
#endif
4623
#ifdef TARGET_NR_get_thread_area
4624
    case TARGET_NR_get_thread_area:
4625
        goto unimplemented_nowarn;
4626
#endif
4627
#ifdef TARGET_NR_getdomainname
4628
    case TARGET_NR_getdomainname:
4629
        goto unimplemented_nowarn;
4630
#endif
4631

    
4632
#ifdef TARGET_NR_clock_gettime
4633
    case TARGET_NR_clock_gettime:
4634
    {
4635
        struct timespec ts;
4636
        ret = get_errno(clock_gettime(arg1, &ts));
4637
        if (!is_error(ret)) {
4638
            host_to_target_timespec(arg2, &ts);
4639
        }
4640
        break;
4641
    }
4642
#endif
4643
#ifdef TARGET_NR_clock_getres
4644
    case TARGET_NR_clock_getres:
4645
    {
4646
        struct timespec ts;
4647
        ret = get_errno(clock_getres(arg1, &ts));
4648
        if (!is_error(ret)) {
4649
            host_to_target_timespec(arg2, &ts);
4650
        }
4651
        break;
4652
    }
4653
#endif
4654

    
4655
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
4656
    case TARGET_NR_set_tid_address:
4657
      ret = get_errno(set_tid_address((int *) arg1));
4658
      break;
4659
#endif
4660

    
4661
#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
4662
    case TARGET_NR_tkill:
4663
        ret = get_errno(sys_tkill((int)arg1, (int)arg2));
4664
        break;
4665
#endif
4666

    
4667
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
4668
    case TARGET_NR_tgkill:
4669
        ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3));
4670
        break;
4671
#endif
4672

    
4673
#ifdef TARGET_NR_set_robust_list
4674
    case TARGET_NR_set_robust_list:
4675
        goto unimplemented_nowarn;
4676
#endif
4677

    
4678
    default:
4679
    unimplemented:
4680
        gemu_log("qemu: Unsupported syscall: %d\n", num);
4681
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
4682
    unimplemented_nowarn:
4683
#endif
4684
        ret = -ENOSYS;
4685
        break;
4686
    }
4687
 fail:
4688
#ifdef DEBUG
4689
    gemu_log(" = %ld\n", ret);
4690
#endif
4691
    return ret;
4692
}
4693