git.maemo.org Git - qemu/blob - linux-user/syscall.c

   1 /*
   2  *  Linux syscalls
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22 #include <stdarg.h>
  23 #include <string.h>
  24 #include <elf.h>
  25 #include <endian.h>
  26 #include <errno.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29 #include <time.h>
  30 #include <sys/types.h>
  31 #include <sys/wait.h>
  32 #include <sys/time.h>
  33 #include <sys/stat.h>
  34 #include <sys/mount.h>
  35 #include <sys/resource.h>
  36 #include <sys/mman.h>
  37 #include <sys/swap.h>
  38 #include <signal.h>
  39 #include <sched.h>
  40 #include <sys/socket.h>
  41 #include <sys/uio.h>
  42 #include <sys/poll.h>
  43 #include <sys/times.h>
  44 #include <sys/shm.h>
  45 #include <utime.h>
  46 //#include <sys/user.h>
  47 #include <netinet/ip.h>
  48 #include <netinet/tcp.h>
  49
  50 #define termios host_termios
  51 #define winsize host_winsize
  52 #define termio host_termio
  53 #define sgttyb host_sgttyb /* same as target */
  54 #define tchars host_tchars /* same as target */
  55 #define ltchars host_ltchars /* same as target */
  56
  57 #include <linux/termios.h>
  58 #include <linux/unistd.h>
  59 #include <linux/utsname.h>
  60 #include <linux/cdrom.h>
  61 #include <linux/hdreg.h>
  62 #include <linux/soundcard.h>
  63 #include <linux/dirent.h>
  64 #include <linux/kd.h>
  65
  66 #include "qemu.h"
  67
  68 //#define DEBUG
  69
  70 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
  71 /* 16 bit uid wrappers emulation */
  72 #define USE_UID16
  73 #endif
  74
  75 //#include <linux/msdos_fs.h>
  76 #define VFAT_IOCTL_READDIR_BOTH         _IOR('r', 1, struct dirent [2])
  77 #define VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
  78
  79
  80 #if defined(__powerpc__)
  81 #undef __syscall_nr
  82 #undef __sc_loadargs_0
  83 #undef __sc_loadargs_1
  84 #undef __sc_loadargs_2
  85 #undef __sc_loadargs_3
  86 #undef __sc_loadargs_4
  87 #undef __sc_loadargs_5
  88 #undef __sc_asm_input_0
  89 #undef __sc_asm_input_1
  90 #undef __sc_asm_input_2
  91 #undef __sc_asm_input_3
  92 #undef __sc_asm_input_4
  93 #undef __sc_asm_input_5
  94 #undef _syscall0
  95 #undef _syscall1
  96 #undef _syscall2
  97 #undef _syscall3
  98 #undef _syscall4
  99 #undef _syscall5
 100
 101 /* need to redefine syscalls as Linux kernel defines are incorrect for
 102    the clobber list */
 103 /* On powerpc a system call basically clobbers the same registers like a
 104  * function call, with the exception of LR (which is needed for the
 105  * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
 106  * an error return status).
 107  */
 108
 109 #define __syscall_nr(nr, type, name, args...)                           \
 110         unsigned long __sc_ret, __sc_err;                               \
 111         {                                                               \
 112                 register unsigned long __sc_0  __asm__ ("r0");          \
 113                 register unsigned long __sc_3  __asm__ ("r3");          \
 114                 register unsigned long __sc_4  __asm__ ("r4");          \
 115                 register unsigned long __sc_5  __asm__ ("r5");          \
 116                 register unsigned long __sc_6  __asm__ ("r6");          \
 117                 register unsigned long __sc_7  __asm__ ("r7");          \
 118                                                                         \
 119                 __sc_loadargs_##nr(name, args);                         \
 120                 __asm__ __volatile__                                    \
 121                         ("sc           \n\t"                            \
 122                          "mfcr %0      "                                \
 123                         : "=&r" (__sc_0),                               \
 124                           "=&r" (__sc_3),  "=&r" (__sc_4),              \
 125                           "=&r" (__sc_5),  "=&r" (__sc_6),              \
 126                           "=&r" (__sc_7)                                \
 127                         : __sc_asm_input_##nr                           \
 128                         : "cr0", "ctr", "memory",                       \
 129                           "r8", "r9", "r10","r11", "r12");              \
 130                 __sc_ret = __sc_3;                                      \
 131                 __sc_err = __sc_0;                                      \
 132         }                                                               \
 133         if (__sc_err & 0x10000000)                                      \
 134         {                                                               \
 135                 errno = __sc_ret;                                       \
 136                 __sc_ret = -1;                                          \
 137         }                                                               \
 138         return (type) __sc_ret
 139
 140 #define __sc_loadargs_0(name, dummy...)                                 \
 141         __sc_0 = __NR_##name
 142 #define __sc_loadargs_1(name, arg1)                                     \
 143         __sc_loadargs_0(name);                                          \
 144         __sc_3 = (unsigned long) (arg1)
 145 #define __sc_loadargs_2(name, arg1, arg2)                               \
 146         __sc_loadargs_1(name, arg1);                                    \
 147         __sc_4 = (unsigned long) (arg2)
 148 #define __sc_loadargs_3(name, arg1, arg2, arg3)                         \
 149         __sc_loadargs_2(name, arg1, arg2);                              \
 150         __sc_5 = (unsigned long) (arg3)
 151 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)                   \
 152         __sc_loadargs_3(name, arg1, arg2, arg3);                        \
 153         __sc_6 = (unsigned long) (arg4)
 154 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)             \
 155         __sc_loadargs_4(name, arg1, arg2, arg3, arg4);                  \
 156         __sc_7 = (unsigned long) (arg5)
 157
 158 #define __sc_asm_input_0 "0" (__sc_0)
 159 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
 160 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
 161 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
 162 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
 163 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
 164
 165 #define _syscall0(type,name)                                            \
 166 type name(void)                                                         \
 167 {                                                                       \
 168         __syscall_nr(0, type, name);                                    \
 169 }
 170
 171 #define _syscall1(type,name,type1,arg1)                                 \
 172 type name(type1 arg1)                                                   \
 173 {                                                                       \
 174         __syscall_nr(1, type, name, arg1);                              \
 175 }
 176
 177 #define _syscall2(type,name,type1,arg1,type2,arg2)                      \
 178 type name(type1 arg1, type2 arg2)                                       \
 179 {                                                                       \
 180         __syscall_nr(2, type, name, arg1, arg2);                        \
 181 }
 182
 183 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)           \
 184 type name(type1 arg1, type2 arg2, type3 arg3)                           \
 185 {                                                                       \
 186         __syscall_nr(3, type, name, arg1, arg2, arg3);                  \
 187 }
 188
 189 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
 190 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)               \
 191 {                                                                       \
 192         __syscall_nr(4, type, name, arg1, arg2, arg3, arg4);            \
 193 }
 194
 195 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
 196 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)   \
 197 {                                                                       \
 198         __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5);      \
 199 }
 200 #endif
 201
 202 #define __NR_sys_uname __NR_uname
 203 #define __NR_sys_getcwd1 __NR_getcwd
 204 #define __NR_sys_statfs __NR_statfs
 205 #define __NR_sys_fstatfs __NR_fstatfs
 206 #define __NR_sys_getdents __NR_getdents
 207 #define __NR_sys_getdents64 __NR_getdents64
 208 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
 209
 210 #if defined(__alpha__) || defined (__ia64__)
 211 #define __NR__llseek __NR_lseek
 212 #endif
 213
 214 #ifdef __NR_gettid
 215 _syscall0(int, gettid)
 216 #else
 217 static int gettid(void) {
 218     return -ENOSYS;
 219 }
 220 #endif
 221 _syscall1(int,sys_uname,struct new_utsname *,buf)
 222 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
 223 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
 224 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
 225 _syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
 226           loff_t *, res, uint, wh);
 227 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
 228 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
 229 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
 230 #ifdef __NR_exit_group
 231 _syscall1(int,exit_group,int,error_code)
 232 #endif
 233
 234 extern int personality(int);
 235 extern int flock(int, int);
 236 extern int setfsuid(int);
 237 extern int setfsgid(int);
 238 extern int setresuid(uid_t, uid_t, uid_t);
 239 extern int getresuid(uid_t *, uid_t *, uid_t *);
 240 extern int setresgid(gid_t, gid_t, gid_t);
 241 extern int getresgid(gid_t *, gid_t *, gid_t *);
 242 extern int setgroups(int, gid_t *);
 243
 244 static inline long get_errno(long ret)
 245 {
 246     if (ret == -1)
 247         return -errno;
 248     else
 249         return ret;
 250 }
 251
 252 static inline int is_error(long ret)
 253 {
 254     return (unsigned long)ret >= (unsigned long)(-4096);
 255 }
 256
 257 static char *target_brk;
 258 static char *target_original_brk;
 259
 260 void target_set_brk(char *new_brk)
 261 {
 262     target_brk = new_brk;
 263     target_original_brk = new_brk;
 264 }
 265
 266 static long do_brk(char *new_brk)
 267 {
 268     char *brk_page;
 269     long mapped_addr;
 270     int new_alloc_size;
 271
 272     if (!new_brk)
 273         return (long)target_brk;
 274     if (new_brk < target_original_brk)
 275         return -ENOMEM;
 276
 277     brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
 278
 279     /* If the new brk is less than this, set it and we're done... */
 280     if (new_brk < brk_page) {
 281         target_brk = new_brk;
 282         return (long)target_brk;
 283     }
 284
 285     /* We need to allocate more memory after the brk... */
 286     new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
 287     mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size,
 288                                         PROT_READ|PROT_WRITE,
 289                                         MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
 290     if (is_error(mapped_addr)) {
 291         return mapped_addr;
 292     } else {
 293         target_brk = new_brk;
 294         return (long)target_brk;
 295     }
 296 }
 297
 298 static inline fd_set *target_to_host_fds(fd_set *fds,
 299                                          target_long *target_fds, int n)
 300 {
 301 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
 302     return (fd_set *)target_fds;
 303 #else
 304     int i, b;
 305     if (target_fds) {
 306         FD_ZERO(fds);
 307         for(i = 0;i < n; i++) {
 308             b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
 309                  (i & (TARGET_LONG_BITS - 1))) & 1;
 310             if (b)
 311                 FD_SET(i, fds);
 312         }
 313         return fds;
 314     } else {
 315         return NULL;
 316     }
 317 #endif
 318 }
 319
 320 static inline void host_to_target_fds(target_long *target_fds,
 321                                       fd_set *fds, int n)
 322 {
 323 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
 324     /* nothing to do */
 325 #else
 326     int i, nw, j, k;
 327     target_long v;
 328
 329     if (target_fds) {
 330         nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
 331         k = 0;
 332         for(i = 0;i < nw; i++) {
 333             v = 0;
 334             for(j = 0; j < TARGET_LONG_BITS; j++) {
 335                 v |= ((FD_ISSET(k, fds) != 0) << j);
 336                 k++;
 337             }
 338             target_fds[i] = tswapl(v);
 339         }
 340     }
 341 #endif
 342 }
 343
 344 #if defined(__alpha__)
 345 #define HOST_HZ 1024
 346 #else
 347 #define HOST_HZ 100
 348 #endif
 349
 350 static inline long host_to_target_clock_t(long ticks)
 351 {
 352 #if HOST_HZ == TARGET_HZ
 353     return ticks;
 354 #else
 355     return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
 356 #endif
 357 }
 358
 359 static inline void host_to_target_rusage(struct target_rusage *target_rusage,
 360                                          const struct rusage *rusage)
 361 {
 362     target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
 363     target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
 364     target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
 365     target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
 366     target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
 367     target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
 368     target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
 369     target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
 370     target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
 371     target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
 372     target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
 373     target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
 374     target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
 375     target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
 376     target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
 377     target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
 378     target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
 379     target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
 380 }
 381
 382 static inline void target_to_host_timeval(struct timeval *tv,
 383                                           const struct target_timeval *target_tv)
 384 {
 385     tv->tv_sec = tswapl(target_tv->tv_sec);
 386     tv->tv_usec = tswapl(target_tv->tv_usec);
 387 }
 388
 389 static inline void host_to_target_timeval(struct target_timeval *target_tv,
 390                                           const struct timeval *tv)
 391 {
 392     target_tv->tv_sec = tswapl(tv->tv_sec);
 393     target_tv->tv_usec = tswapl(tv->tv_usec);
 394 }
 395
 396
 397 static long do_select(long n,
 398                       target_long *target_rfds, target_long *target_wfds,
 399                       target_long *target_efds, struct target_timeval *target_tv)
 400 {
 401     fd_set rfds, wfds, efds;
 402     fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
 403     struct timeval tv, *tv_ptr;
 404     long ret;
 405
 406     rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
 407     wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
 408     efds_ptr = target_to_host_fds(&efds, target_efds, n);
 409
 410     if (target_tv) {
 411         target_to_host_timeval(&tv, target_tv);
 412         tv_ptr = &tv;
 413     } else {
 414         tv_ptr = NULL;
 415     }
 416     ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
 417     if (!is_error(ret)) {
 418         host_to_target_fds(target_rfds, rfds_ptr, n);
 419         host_to_target_fds(target_wfds, wfds_ptr, n);
 420         host_to_target_fds(target_efds, efds_ptr, n);
 421
 422         if (target_tv) {
 423             host_to_target_timeval(target_tv, &tv);
 424         }
 425     }
 426     return ret;
 427 }
 428
 429 static inline void target_to_host_sockaddr(struct sockaddr *addr,
 430                                            struct target_sockaddr *target_addr,
 431                                            socklen_t len)
 432 {
 433     memcpy(addr, target_addr, len);
 434     addr->sa_family = tswap16(target_addr->sa_family);
 435 }
 436
 437 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
 438                                            struct sockaddr *addr,
 439                                            socklen_t len)
 440 {
 441     memcpy(target_addr, addr, len);
 442     target_addr->sa_family = tswap16(addr->sa_family);
 443 }
 444
 445 static inline void target_to_host_cmsg(struct msghdr *msgh,
 446                                        struct target_msghdr *target_msgh)
 447 {
 448     struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
 449     struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
 450     socklen_t space = 0;
 451
 452     while (cmsg && target_cmsg) {
 453         void *data = CMSG_DATA(cmsg);
 454         void *target_data = TARGET_CMSG_DATA(target_cmsg);
 455
 456         int len = tswapl(target_cmsg->cmsg_len)
 457                   - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
 458
 459         space += CMSG_SPACE(len);
 460         if (space > msgh->msg_controllen) {
 461             space -= CMSG_SPACE(len);
 462             gemu_log("Host cmsg overflow");
 463             break;
 464         }
 465
 466         cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
 467         cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
 468         cmsg->cmsg_len = CMSG_LEN(len);
 469
 470         if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
 471             gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
 472             memcpy(data, target_data, len);
 473         } else {
 474             int *fd = (int *)data;
 475             int *target_fd = (int *)target_data;
 476             int i, numfds = len / sizeof(int);
 477
 478             for (i = 0; i < numfds; i++)
 479                 fd[i] = tswap32(target_fd[i]);
 480         }
 481
 482         cmsg = CMSG_NXTHDR(msgh, cmsg);
 483         target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
 484     }
 485
 486     msgh->msg_controllen = space;
 487 }
 488
 489 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
 490                                        struct msghdr *msgh)
 491 {
 492     struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
 493     struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
 494     socklen_t space = 0;
 495
 496     while (cmsg && target_cmsg) {
 497         void *data = CMSG_DATA(cmsg);
 498         void *target_data = TARGET_CMSG_DATA(target_cmsg);
 499
 500         int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
 501
 502         space += TARGET_CMSG_SPACE(len);
 503         if (space > tswapl(target_msgh->msg_controllen)) {
 504             space -= TARGET_CMSG_SPACE(len);
 505             gemu_log("Target cmsg overflow");
 506             break;
 507         }
 508
 509         target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
 510         target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
 511         target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
 512
 513         if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
 514             gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
 515             memcpy(target_data, data, len);
 516         } else {
 517             int *fd = (int *)data;
 518             int *target_fd = (int *)target_data;
 519             int i, numfds = len / sizeof(int);
 520
 521             for (i = 0; i < numfds; i++)
 522                 target_fd[i] = tswap32(fd[i]);
 523         }
 524
 525         cmsg = CMSG_NXTHDR(msgh, cmsg);
 526         target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
 527     }
 528
 529     msgh->msg_controllen = tswapl(space);
 530 }
 531
 532 static long do_setsockopt(int sockfd, int level, int optname,
 533                           void *optval, socklen_t optlen)
 534 {
 535     int val, ret;
 536
 537     switch(level) {
 538     case SOL_TCP:
 539         /* TCP options all take an 'int' value.  */
 540         if (optlen < sizeof(uint32_t))
 541             return -EINVAL;
 542
 543         if (get_user(val, (uint32_t *)optval))
 544             return -EFAULT;
 545         ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 546         break;
 547     case SOL_IP:
 548         switch(optname) {
 549         case IP_HDRINCL:
 550             val = 0;
 551             if (optlen >= sizeof(uint32_t)) {
 552                 if (get_user(val, (uint32_t *)optval))
 553                     return -EFAULT;
 554             } else if (optlen >= 1) {
 555                 if (get_user(val, (uint8_t *)optval))
 556                     return -EFAULT;
 557             }
 558             ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 559             break;
 560         default:
 561             goto unimplemented;
 562         }
 563         break;
 564     case SOL_SOCKET:
 565         switch (optname) {
 566             /* Options with 'int' argument.  */
 567         case SO_DEBUG:
 568         case SO_REUSEADDR:
 569         case SO_TYPE:
 570         case SO_ERROR:
 571         case SO_DONTROUTE:
 572         case SO_BROADCAST:
 573         case SO_SNDBUF:
 574         case SO_RCVBUF:
 575         case SO_KEEPALIVE:
 576         case SO_OOBINLINE:
 577         case SO_NO_CHECK:
 578         case SO_PRIORITY:
 579         case SO_BSDCOMPAT:
 580         case SO_PASSCRED:
 581         case SO_TIMESTAMP:
 582         case SO_RCVLOWAT:
 583         case SO_RCVTIMEO:
 584         case SO_SNDTIMEO:
 585             if (optlen < sizeof(uint32_t))
 586                 return -EINVAL;
 587             if (get_user(val, (uint32_t *)optval))
 588                 return -EFAULT;
 589             ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 590             break;
 591         default:
 592             goto unimplemented;
 593         }
 594         break;
 595     default:
 596     unimplemented:
 597         gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
 598         ret = -ENOSYS;
 599     }
 600     return ret;
 601 }
 602
 603 static long do_getsockopt(int sockfd, int level, int optname,
 604                           void *optval, socklen_t *optlen)
 605 {
 606     int len, lv, val, ret;
 607
 608     switch(level) {
 609     case SOL_SOCKET:
 610         switch (optname) {
 611         case SO_LINGER:
 612         case SO_RCVTIMEO:
 613         case SO_SNDTIMEO:
 614         case SO_PEERCRED:
 615         case SO_PEERNAME:
 616             /* These don't just return a single integer */
 617             goto unimplemented;
 618         default:
 619             if (get_user(len, optlen))
 620                 return -EFAULT;
 621             if (len < 0)
 622                 return -EINVAL;
 623             lv = sizeof(int);
 624             ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
 625             if (ret < 0)
 626                 return ret;
 627             val = tswap32(val);
 628             if (len > lv)
 629                 len = lv;
 630             if (copy_to_user(optval, &val, len))
 631                 return -EFAULT;
 632             if (put_user(len, optlen))
 633                 return -EFAULT;
 634             break;
 635         }
 636         break;
 637     default:
 638     unimplemented:
 639         gemu_log("getsockopt level=%d optname=%d not yet supported\n",
 640                  level, optname);
 641         ret = -ENOSYS;
 642         break;
 643     }
 644     return ret;
 645 }
 646
 647 static long do_socketcall(int num, int32_t *vptr)
 648 {
 649     long ret;
 650
 651     switch(num) {
 652     case SOCKOP_socket:
 653         {
 654             int domain = tswap32(vptr[0]);
 655             int type = tswap32(vptr[1]);
 656             int protocol = tswap32(vptr[2]);
 657
 658             ret = get_errno(socket(domain, type, protocol));
 659         }
 660         break;
 661     case SOCKOP_bind:
 662         {
 663             int sockfd = tswap32(vptr[0]);
 664             void *target_addr = (void *)tswap32(vptr[1]);
 665             socklen_t addrlen = tswap32(vptr[2]);
 666             void *addr = alloca(addrlen);
 667
 668             target_to_host_sockaddr(addr, target_addr, addrlen);
 669             ret = get_errno(bind(sockfd, addr, addrlen));
 670         }
 671         break;
 672     case SOCKOP_connect:
 673         {
 674             int sockfd = tswap32(vptr[0]);
 675             void *target_addr = (void *)tswap32(vptr[1]);
 676             socklen_t addrlen = tswap32(vptr[2]);
 677             void *addr = alloca(addrlen);
 678
 679             target_to_host_sockaddr(addr, target_addr, addrlen);
 680             ret = get_errno(connect(sockfd, addr, addrlen));
 681         }
 682         break;
 683     case SOCKOP_listen:
 684         {
 685             int sockfd = tswap32(vptr[0]);
 686             int backlog = tswap32(vptr[1]);
 687
 688             ret = get_errno(listen(sockfd, backlog));
 689         }
 690         break;
 691     case SOCKOP_accept:
 692         {
 693             int sockfd = tswap32(vptr[0]);
 694             void *target_addr = (void *)tswap32(vptr[1]);
 695             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 696             socklen_t addrlen = tswap32(*target_addrlen);
 697             void *addr = alloca(addrlen);
 698
 699             ret = get_errno(accept(sockfd, addr, &addrlen));
 700             if (!is_error(ret)) {
 701                 host_to_target_sockaddr(target_addr, addr, addrlen);
 702                 *target_addrlen = tswap32(addrlen);
 703             }
 704         }
 705         break;
 706     case SOCKOP_getsockname:
 707         {
 708             int sockfd = tswap32(vptr[0]);
 709             void *target_addr = (void *)tswap32(vptr[1]);
 710             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 711             socklen_t addrlen = tswap32(*target_addrlen);
 712             void *addr = alloca(addrlen);
 713
 714             ret = get_errno(getsockname(sockfd, addr, &addrlen));
 715             if (!is_error(ret)) {
 716                 host_to_target_sockaddr(target_addr, addr, addrlen);
 717                 *target_addrlen = tswap32(addrlen);
 718             }
 719         }
 720         break;
 721     case SOCKOP_getpeername:
 722         {
 723             int sockfd = tswap32(vptr[0]);
 724             void *target_addr = (void *)tswap32(vptr[1]);
 725             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 726             socklen_t addrlen = tswap32(*target_addrlen);
 727             void *addr = alloca(addrlen);
 728
 729             ret = get_errno(getpeername(sockfd, addr, &addrlen));
 730             if (!is_error(ret)) {
 731                 host_to_target_sockaddr(target_addr, addr, addrlen);
 732                 *target_addrlen = tswap32(addrlen);
 733             }
 734         }
 735         break;
 736     case SOCKOP_socketpair:
 737         {
 738             int domain = tswap32(vptr[0]);
 739             int type = tswap32(vptr[1]);
 740             int protocol = tswap32(vptr[2]);
 741             int32_t *target_tab = (void *)tswap32(vptr[3]);
 742             int tab[2];
 743
 744             ret = get_errno(socketpair(domain, type, protocol, tab));
 745             if (!is_error(ret)) {
 746                 target_tab[0] = tswap32(tab[0]);
 747                 target_tab[1] = tswap32(tab[1]);
 748             }
 749         }
 750         break;
 751     case SOCKOP_send:
 752         {
 753             int sockfd = tswap32(vptr[0]);
 754             void *msg = (void *)tswap32(vptr[1]);
 755             size_t len = tswap32(vptr[2]);
 756             int flags = tswap32(vptr[3]);
 757
 758             ret = get_errno(send(sockfd, msg, len, flags));
 759         }
 760         break;
 761     case SOCKOP_recv:
 762         {
 763             int sockfd = tswap32(vptr[0]);
 764             void *msg = (void *)tswap32(vptr[1]);
 765             size_t len = tswap32(vptr[2]);
 766             int flags = tswap32(vptr[3]);
 767
 768             ret = get_errno(recv(sockfd, msg, len, flags));
 769         }
 770         break;
 771     case SOCKOP_sendto:
 772         {
 773             int sockfd = tswap32(vptr[0]);
 774             void *msg = (void *)tswap32(vptr[1]);
 775             size_t len = tswap32(vptr[2]);
 776             int flags = tswap32(vptr[3]);
 777             void *target_addr = (void *)tswap32(vptr[4]);
 778             socklen_t addrlen = tswap32(vptr[5]);
 779             void *addr = alloca(addrlen);
 780
 781             target_to_host_sockaddr(addr, target_addr, addrlen);
 782             ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
 783         }
 784         break;
 785     case SOCKOP_recvfrom:
 786         {
 787             int sockfd = tswap32(vptr[0]);
 788             void *msg = (void *)tswap32(vptr[1]);
 789             size_t len = tswap32(vptr[2]);
 790             int flags = tswap32(vptr[3]);
 791             void *target_addr = (void *)tswap32(vptr[4]);
 792             uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
 793             socklen_t addrlen = tswap32(*target_addrlen);
 794             void *addr = alloca(addrlen);
 795
 796             ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
 797             if (!is_error(ret)) {
 798                 host_to_target_sockaddr(target_addr, addr, addrlen);
 799                 *target_addrlen = tswap32(addrlen);
 800             }
 801         }
 802         break;
 803     case SOCKOP_shutdown:
 804         {
 805             int sockfd = tswap32(vptr[0]);
 806             int how = tswap32(vptr[1]);
 807
 808             ret = get_errno(shutdown(sockfd, how));
 809         }
 810         break;
 811     case SOCKOP_sendmsg:
 812     case SOCKOP_recvmsg:
 813         {
 814             int fd;
 815             struct target_msghdr *msgp;
 816             struct msghdr msg;
 817             int flags, count, i;
 818             struct iovec *vec;
 819             struct target_iovec *target_vec;
 820
 821             msgp = (void *)tswap32(vptr[1]);
 822             msg.msg_name = (void *)tswapl(msgp->msg_name);
 823             msg.msg_namelen = tswapl(msgp->msg_namelen);
 824             msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
 825             msg.msg_control = alloca(msg.msg_controllen);
 826             msg.msg_flags = tswap32(msgp->msg_flags);
 827
 828             count = tswapl(msgp->msg_iovlen);
 829             vec = alloca(count * sizeof(struct iovec));
 830             target_vec = (void *)tswapl(msgp->msg_iov);
 831             for(i = 0;i < count; i++) {
 832                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
 833                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
 834             }
 835             msg.msg_iovlen = count;
 836             msg.msg_iov = vec;
 837
 838             fd = tswap32(vptr[0]);
 839             flags = tswap32(vptr[2]);
 840             if (num == SOCKOP_sendmsg) {
 841                 target_to_host_cmsg(&msg, msgp);
 842                 ret = get_errno(sendmsg(fd, &msg, flags));
 843             } else {
 844                 ret = get_errno(recvmsg(fd, &msg, flags));
 845                 if (!is_error(ret))
 846                   host_to_target_cmsg(msgp, &msg);
 847             }
 848         }
 849         break;
 850     case SOCKOP_setsockopt:
 851         {
 852             int sockfd = tswap32(vptr[0]);
 853             int level = tswap32(vptr[1]);
 854             int optname = tswap32(vptr[2]);
 855             void *optval = (void *)tswap32(vptr[3]);
 856             socklen_t optlen = tswap32(vptr[4]);
 857
 858             ret = do_setsockopt(sockfd, level, optname, optval, optlen);
 859         }
 860         break;
 861     case SOCKOP_getsockopt:
 862         {
 863             int sockfd = tswap32(vptr[0]);
 864             int level = tswap32(vptr[1]);
 865             int optname = tswap32(vptr[2]);
 866             void *optval = (void *)tswap32(vptr[3]);
 867             uint32_t *poptlen = (void *)tswap32(vptr[4]);
 868
 869             ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
 870         }
 871         break;
 872     default:
 873         gemu_log("Unsupported socketcall: %d\n", num);
 874         ret = -ENOSYS;
 875         break;
 876     }
 877     return ret;
 878 }
 879
 880
 881 #define N_SHM_REGIONS   32
 882
 883 static struct shm_region {
 884     uint32_t    start;
 885     uint32_t    size;
 886 } shm_regions[N_SHM_REGIONS];
 887
 888 static long do_ipc(long call, long first, long second, long third,
 889                    long ptr, long fifth)
 890 {
 891     int version;
 892     long ret = 0;
 893     unsigned long raddr;
 894     struct shmid_ds shm_info;
 895     int i;
 896
 897     version = call >> 16;
 898     call &= 0xffff;
 899
 900     switch (call) {
 901     case IPCOP_shmat:
 902         /* SHM_* flags are the same on all linux platforms */
 903         ret = get_errno((long) shmat(first, (void *) ptr, second));
 904         if (is_error(ret))
 905             break;
 906         raddr = ret;
 907         /* find out the length of the shared memory segment */
 908
 909         ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
 910         if (is_error(ret)) {
 911             /* can't get length, bail out */
 912             shmdt((void *) raddr);
 913             break;
 914         }
 915         page_set_flags(raddr, raddr + shm_info.shm_segsz,
 916                        PAGE_VALID | PAGE_READ |
 917                        ((second & SHM_RDONLY)? 0: PAGE_WRITE));
 918         for (i = 0; i < N_SHM_REGIONS; ++i) {
 919             if (shm_regions[i].start == 0) {
 920                 shm_regions[i].start = raddr;
 921                 shm_regions[i].size = shm_info.shm_segsz;
 922                 break;
 923             }
 924         }
 925         if (put_user(raddr, (uint32_t *)third))
 926             return -EFAULT;
 927         ret = 0;
 928         break;
 929     case IPCOP_shmdt:
 930         for (i = 0; i < N_SHM_REGIONS; ++i) {
 931             if (shm_regions[i].start == ptr) {
 932                 shm_regions[i].start = 0;
 933                 page_set_flags(ptr, shm_regions[i].size, 0);
 934                 break;
 935             }
 936         }
 937         ret = get_errno(shmdt((void *) ptr));
 938         break;
 939
 940     case IPCOP_shmget:
 941         /* IPC_* flag values are the same on all linux platforms */
 942         ret = get_errno(shmget(first, second, third));
 943         break;
 944
 945         /* IPC_* and SHM_* command values are the same on all linux platforms */
 946     case IPCOP_shmctl:
 947         switch(second) {
 948         case IPC_RMID:
 949         case SHM_LOCK:
 950         case SHM_UNLOCK:
 951             ret = get_errno(shmctl(first, second, NULL));
 952             break;
 953         default:
 954             goto unimplemented;
 955         }
 956         break;
 957     default:
 958     unimplemented:
 959         gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
 960         ret = -ENOSYS;
 961         break;
 962     }
 963     return ret;
 964 }
 965
 966 /* kernel structure types definitions */
 967 #define IFNAMSIZ        16
 968
 969 #define STRUCT(name, list...) STRUCT_ ## name,
 970 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
 971 enum {
 972 #include "syscall_types.h"
 973 };
 974 #undef STRUCT
 975 #undef STRUCT_SPECIAL
 976
 977 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
 978 #define STRUCT_SPECIAL(name)
 979 #include "syscall_types.h"
 980 #undef STRUCT
 981 #undef STRUCT_SPECIAL
 982
 983 typedef struct IOCTLEntry {
 984     unsigned int target_cmd;
 985     unsigned int host_cmd;
 986     const char *name;
 987     int access;
 988     const argtype arg_type[5];
 989 } IOCTLEntry;
 990
 991 #define IOC_R 0x0001
 992 #define IOC_W 0x0002
 993 #define IOC_RW (IOC_R | IOC_W)
 994
 995 #define MAX_STRUCT_SIZE 4096
 996
 997 IOCTLEntry ioctl_entries[] = {
 998 #define IOCTL(cmd, access, types...) \
 999     { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1000 #include "ioctls.h"
1001     { 0, 0, },
1002 };
1003
1004 static long do_ioctl(long fd, long cmd, long arg)
1005 {
1006     const IOCTLEntry *ie;
1007     const argtype *arg_type;
1008     long ret;
1009     uint8_t buf_temp[MAX_STRUCT_SIZE];
1010
1011     ie = ioctl_entries;
1012     for(;;) {
1013         if (ie->target_cmd == 0) {
1014             gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1015             return -ENOSYS;
1016         }
1017         if (ie->target_cmd == cmd)
1018             break;
1019         ie++;
1020     }
1021     arg_type = ie->arg_type;
1022 #if defined(DEBUG)
1023     gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1024 #endif
1025     switch(arg_type[0]) {
1026     case TYPE_NULL:
1027         /* no argument */
1028         ret = get_errno(ioctl(fd, ie->host_cmd));
1029         break;
1030     case TYPE_PTRVOID:
1031     case TYPE_INT:
1032         /* int argment */
1033         ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1034         break;
1035     case TYPE_PTR:
1036         arg_type++;
1037         switch(ie->access) {
1038         case IOC_R:
1039             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1040             if (!is_error(ret)) {
1041                 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1042             }
1043             break;
1044         case IOC_W:
1045             thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1046             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1047             break;
1048         default:
1049         case IOC_RW:
1050             thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1051             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1052             if (!is_error(ret)) {
1053                 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1054             }
1055             break;
1056         }
1057         break;
1058     default:
1059         gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1060         ret = -ENOSYS;
1061         break;
1062     }
1063     return ret;
1064 }
1065
1066 bitmask_transtbl iflag_tbl[] = {
1067         { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1068         { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1069         { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1070         { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1071         { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1072         { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1073         { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1074         { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1075         { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1076         { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1077         { TARGET_IXON, TARGET_IXON, IXON, IXON },
1078         { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1079         { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1080         { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1081         { 0, 0, 0, 0 }
1082 };
1083
1084 bitmask_transtbl oflag_tbl[] = {
1085         { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1086         { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1087         { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1088         { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1089         { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1090         { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1091         { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1092         { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1093         { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1094         { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1095         { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1096         { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1097         { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1098         { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1099         { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1100         { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1101         { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1102         { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1103         { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1104         { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1105         { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1106         { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1107         { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1108         { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1109         { 0, 0, 0, 0 }
1110 };
1111
1112 bitmask_transtbl cflag_tbl[] = {
1113         { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1114         { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1115         { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1116         { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1117         { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1118         { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1119         { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1120         { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1121         { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1122         { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1123         { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1124         { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1125         { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1126         { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1127         { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1128         { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1129         { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1130         { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1131         { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1132         { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1133         { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1134         { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1135         { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1136         { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1137         { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1138         { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1139         { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1140         { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1141         { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1142         { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1143         { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1144         { 0, 0, 0, 0 }
1145 };
1146
1147 bitmask_transtbl lflag_tbl[] = {
1148         { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1149         { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1150         { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1151         { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1152         { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1153         { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1154         { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1155         { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1156         { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1157         { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1158         { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1159         { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1160         { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1161         { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1162         { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1163         { 0, 0, 0, 0 }
1164 };
1165
1166 static void target_to_host_termios (void *dst, const void *src)
1167 {
1168     struct host_termios *host = dst;
1169     const struct target_termios *target = src;
1170
1171     host->c_iflag =
1172         target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1173     host->c_oflag =
1174         target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1175     host->c_cflag =
1176         target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1177     host->c_lflag =
1178         target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1179     host->c_line = target->c_line;
1180
1181     host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1182     host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1183     host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1184     host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1185     host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1186     host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1187     host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1188     host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1189     host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1190     host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1191     host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1192     host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1193     host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1194     host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1195     host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1196     host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1197     host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1198 }
1199
1200 static void host_to_target_termios (void *dst, const void *src)
1201 {
1202     struct target_termios *target = dst;
1203     const struct host_termios *host = src;
1204
1205     target->c_iflag =
1206         tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1207     target->c_oflag =
1208         tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1209     target->c_cflag =
1210         tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1211     target->c_lflag =
1212         tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1213     target->c_line = host->c_line;
1214
1215     target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1216     target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1217     target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1218     target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1219     target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1220     target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1221     target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1222     target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1223     target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1224     target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1225     target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1226     target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1227     target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1228     target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1229     target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1230     target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1231     target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1232 }
1233
1234 StructEntry struct_termios_def = {
1235     .convert = { host_to_target_termios, target_to_host_termios },
1236     .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1237     .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1238 };
1239
1240 static bitmask_transtbl mmap_flags_tbl[] = {
1241         { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1242         { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1243         { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1244         { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1245         { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1246         { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1247         { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1248         { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1249         { 0, 0, 0, 0 }
1250 };
1251
1252 static bitmask_transtbl fcntl_flags_tbl[] = {
1253         { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1254         { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1255         { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1256         { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1257         { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1258         { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1259         { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1260         { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1261         { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1262         { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1263         { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1264         { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1265         { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1266 #if defined(O_DIRECT)
1267         { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1268 #endif
1269         { 0, 0, 0, 0 }
1270 };
1271
1272 #if defined(TARGET_I386)
1273
1274 /* NOTE: there is really one LDT for all the threads */
1275 uint8_t *ldt_table;
1276
1277 static int read_ldt(void *ptr, unsigned long bytecount)
1278 {
1279     int size;
1280
1281     if (!ldt_table)
1282         return 0;
1283     size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1284     if (size > bytecount)
1285         size = bytecount;
1286     memcpy(ptr, ldt_table, size);
1287     return size;
1288 }
1289
1290 /* XXX: add locking support */
1291 static int write_ldt(CPUX86State *env,
1292                      void *ptr, unsigned long bytecount, int oldmode)
1293 {
1294     struct target_modify_ldt_ldt_s ldt_info;
1295     int seg_32bit, contents, read_exec_only, limit_in_pages;
1296     int seg_not_present, useable;
1297     uint32_t *lp, entry_1, entry_2;
1298
1299     if (bytecount != sizeof(ldt_info))
1300         return -EINVAL;
1301     memcpy(&ldt_info, ptr, sizeof(ldt_info));
1302     tswap32s(&ldt_info.entry_number);
1303     tswapls((long *)&ldt_info.base_addr);
1304     tswap32s(&ldt_info.limit);
1305     tswap32s(&ldt_info.flags);
1306
1307     if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1308         return -EINVAL;
1309     seg_32bit = ldt_info.flags & 1;
1310     contents = (ldt_info.flags >> 1) & 3;
1311     read_exec_only = (ldt_info.flags >> 3) & 1;
1312     limit_in_pages = (ldt_info.flags >> 4) & 1;
1313     seg_not_present = (ldt_info.flags >> 5) & 1;
1314     useable = (ldt_info.flags >> 6) & 1;
1315
1316     if (contents == 3) {
1317         if (oldmode)
1318             return -EINVAL;
1319         if (seg_not_present == 0)
1320             return -EINVAL;
1321     }
1322     /* allocate the LDT */
1323     if (!ldt_table) {
1324         ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1325         if (!ldt_table)
1326             return -ENOMEM;
1327         memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1328         env->ldt.base = ldt_table;
1329         env->ldt.limit = 0xffff;
1330     }
1331
1332     /* NOTE: same code as Linux kernel */
1333     /* Allow LDTs to be cleared by the user. */
1334     if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1335         if (oldmode ||
1336             (contents == 0              &&
1337              read_exec_only == 1        &&
1338              seg_32bit == 0             &&
1339              limit_in_pages == 0        &&
1340              seg_not_present == 1       &&
1341              useable == 0 )) {
1342             entry_1 = 0;
1343             entry_2 = 0;
1344             goto install;
1345         }
1346     }
1347
1348     entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1349         (ldt_info.limit & 0x0ffff);
1350     entry_2 = (ldt_info.base_addr & 0xff000000) |
1351         ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1352         (ldt_info.limit & 0xf0000) |
1353         ((read_exec_only ^ 1) << 9) |
1354         (contents << 10) |
1355         ((seg_not_present ^ 1) << 15) |
1356         (seg_32bit << 22) |
1357         (limit_in_pages << 23) |
1358         0x7000;
1359     if (!oldmode)
1360         entry_2 |= (useable << 20);
1361
1362     /* Install the new entry ...  */
1363 install:
1364     lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1365     lp[0] = tswap32(entry_1);
1366     lp[1] = tswap32(entry_2);
1367     return 0;
1368 }
1369
1370 /* specific and weird i386 syscalls */
1371 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1372 {
1373     int ret = -ENOSYS;
1374
1375     switch (func) {
1376     case 0:
1377         ret = read_ldt(ptr, bytecount);
1378         break;
1379     case 1:
1380         ret = write_ldt(env, ptr, bytecount, 1);
1381         break;
1382     case 0x11:
1383         ret = write_ldt(env, ptr, bytecount, 0);
1384         break;
1385     }
1386     return ret;
1387 }
1388
1389 #endif /* defined(TARGET_I386) */
1390
1391 /* this stack is the equivalent of the kernel stack associated with a
1392    thread/process */
1393 #define NEW_STACK_SIZE 8192
1394
1395 static int clone_func(void *arg)
1396 {
1397     CPUState *env = arg;
1398     cpu_loop(env);
1399     /* never exits */
1400     return 0;
1401 }
1402
1403 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1404 {
1405     int ret;
1406     TaskState *ts;
1407     uint8_t *new_stack;
1408     CPUState *new_env;
1409
1410     if (flags & CLONE_VM) {
1411         ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1412         memset(ts, 0, sizeof(TaskState));
1413         new_stack = ts->stack;
1414         ts->used = 1;
1415         /* add in task state list */
1416         ts->next = first_task_state;
1417         first_task_state = ts;
1418         /* we create a new CPU instance. */
1419         new_env = cpu_init();
1420         memcpy(new_env, env, sizeof(CPUState));
1421 #if defined(TARGET_I386)
1422         if (!newsp)
1423             newsp = env->regs[R_ESP];
1424         new_env->regs[R_ESP] = newsp;
1425         new_env->regs[R_EAX] = 0;
1426 #elif defined(TARGET_ARM)
1427         if (!newsp)
1428             newsp = env->regs[13];
1429         new_env->regs[13] = newsp;
1430         new_env->regs[0] = 0;
1431 #elif defined(TARGET_SPARC)
1432         printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1433 #elif defined(TARGET_PPC)
1434         if (!newsp)
1435             newsp = env->gpr[1];
1436         new_env->gpr[1] = newsp;
1437         {
1438             int i;
1439             for (i = 7; i < 32; i++)
1440                 new_env->gpr[i] = 0;
1441         }
1442 #else
1443 #error unsupported target CPU
1444 #endif
1445         new_env->opaque = ts;
1446 #ifdef __ia64__
1447         ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1448 #else
1449         ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1450 #endif
1451     } else {
1452         /* if no CLONE_VM, we consider it is a fork */
1453         if ((flags & ~CSIGNAL) != 0)
1454             return -EINVAL;
1455         ret = fork();
1456     }
1457     return ret;
1458 }
1459
1460 static long do_fcntl(int fd, int cmd, unsigned long arg)
1461 {
1462     struct flock fl;
1463     struct target_flock *target_fl = (void *)arg;
1464     long ret;
1465
1466     switch(cmd) {
1467     case TARGET_F_GETLK:
1468         ret = fcntl(fd, cmd, &fl);
1469         if (ret == 0) {
1470             target_fl->l_type = tswap16(fl.l_type);
1471             target_fl->l_whence = tswap16(fl.l_whence);
1472             target_fl->l_start = tswapl(fl.l_start);
1473             target_fl->l_len = tswapl(fl.l_len);
1474             target_fl->l_pid = tswapl(fl.l_pid);
1475         }
1476         break;
1477
1478     case TARGET_F_SETLK:
1479     case TARGET_F_SETLKW:
1480         fl.l_type = tswap16(target_fl->l_type);
1481         fl.l_whence = tswap16(target_fl->l_whence);
1482         fl.l_start = tswapl(target_fl->l_start);
1483         fl.l_len = tswapl(target_fl->l_len);
1484         fl.l_pid = tswapl(target_fl->l_pid);
1485         ret = fcntl(fd, cmd, &fl);
1486         break;
1487
1488     case TARGET_F_GETLK64:
1489     case TARGET_F_SETLK64:
1490     case TARGET_F_SETLKW64:
1491         ret = -1;
1492         errno = EINVAL;
1493         break;
1494
1495     case F_GETFL:
1496         ret = fcntl(fd, cmd, arg);
1497         ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1498         break;
1499
1500     case F_SETFL:
1501         ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1502         break;
1503
1504     default:
1505         ret = fcntl(fd, cmd, arg);
1506         break;
1507     }
1508     return ret;
1509 }
1510
1511 #ifdef USE_UID16
1512
1513 static inline int high2lowuid(int uid)
1514 {
1515     if (uid > 65535)
1516         return 65534;
1517     else
1518         return uid;
1519 }
1520
1521 static inline int high2lowgid(int gid)
1522 {
1523     if (gid > 65535)
1524         return 65534;
1525     else
1526         return gid;
1527 }
1528
1529 static inline int low2highuid(int uid)
1530 {
1531     if ((int16_t)uid == -1)
1532         return -1;
1533     else
1534         return uid;
1535 }
1536
1537 static inline int low2highgid(int gid)
1538 {
1539     if ((int16_t)gid == -1)
1540         return -1;
1541     else
1542         return gid;
1543 }
1544
1545 #endif /* USE_UID16 */
1546
1547 void syscall_init(void)
1548 {
1549     IOCTLEntry *ie;
1550     const argtype *arg_type;
1551     int size;
1552
1553 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1554 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1555 #include "syscall_types.h"
1556 #undef STRUCT
1557 #undef STRUCT_SPECIAL
1558
1559     /* we patch the ioctl size if necessary. We rely on the fact that
1560        no ioctl has all the bits at '1' in the size field */
1561     ie = ioctl_entries;
1562     while (ie->target_cmd != 0) {
1563         if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1564             TARGET_IOC_SIZEMASK) {
1565             arg_type = ie->arg_type;
1566             if (arg_type[0] != TYPE_PTR) {
1567                 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1568                         ie->target_cmd);
1569                 exit(1);
1570             }
1571             arg_type++;
1572             size = thunk_type_size(arg_type, 0);
1573             ie->target_cmd = (ie->target_cmd &
1574                               ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1575                 (size << TARGET_IOC_SIZESHIFT);
1576         }
1577         /* automatic consistency check if same arch */
1578 #if defined(__i386__) && defined(TARGET_I386)
1579         if (ie->target_cmd != ie->host_cmd) {
1580             fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1581                     ie->target_cmd, ie->host_cmd);
1582         }
1583 #endif
1584         ie++;
1585     }
1586 }
1587
1588 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1589                 long arg4, long arg5, long arg6)
1590 {
1591     long ret;
1592     struct stat st;
1593     struct kernel_statfs *stfs;
1594
1595 #ifdef DEBUG
1596     gemu_log("syscall %d", num);
1597 #endif
1598     switch(num) {
1599     case TARGET_NR_exit:
1600 #ifdef HAVE_GPROF
1601         _mcleanup();
1602 #endif
1603         /* XXX: should free thread stack and CPU env */
1604         _exit(arg1);
1605         ret = 0; /* avoid warning */
1606         break;
1607     case TARGET_NR_read:
1608         page_unprotect_range((void *)arg2, arg3);
1609         ret = get_errno(read(arg1, (void *)arg2, arg3));
1610         break;
1611     case TARGET_NR_write:
1612         ret = get_errno(write(arg1, (void *)arg2, arg3));
1613         break;
1614     case TARGET_NR_open:
1615         ret = get_errno(open(path((const char *)arg1),
1616                              target_to_host_bitmask(arg2, fcntl_flags_tbl),
1617                              arg3));
1618         break;
1619     case TARGET_NR_close:
1620         ret = get_errno(close(arg1));
1621         break;
1622     case TARGET_NR_brk:
1623         ret = do_brk((char *)arg1);
1624         break;
1625     case TARGET_NR_fork:
1626         ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1627         break;
1628     case TARGET_NR_waitpid:
1629         {
1630             int *status = (int *)arg2;
1631             ret = get_errno(waitpid(arg1, status, arg3));
1632             if (!is_error(ret) && status)
1633                 tswapls((long *)&status);
1634         }
1635         break;
1636     case TARGET_NR_creat:
1637         ret = get_errno(creat((const char *)arg1, arg2));
1638         break;
1639     case TARGET_NR_link:
1640         ret = get_errno(link((const char *)arg1, (const char *)arg2));
1641         break;
1642     case TARGET_NR_unlink:
1643         ret = get_errno(unlink((const char *)arg1));
1644         break;
1645     case TARGET_NR_execve:
1646         {
1647             char **argp, **envp;
1648             int argc, envc;
1649             uint32_t *p;
1650             char **q;
1651
1652             argc = 0;
1653             for (p = (void *)arg2; *p; p++)
1654                 argc++;
1655             envc = 0;
1656             for (p = (void *)arg3; *p; p++)
1657                 envc++;
1658
1659             argp = alloca((argc + 1) * sizeof(void *));
1660             envp = alloca((envc + 1) * sizeof(void *));
1661
1662             for (p = (void *)arg2, q = argp; *p; p++, q++)
1663                 *q = (void *)tswap32(*p);
1664             *q = NULL;
1665
1666             for (p = (void *)arg3, q = envp; *p; p++, q++)
1667                 *q = (void *)tswap32(*p);
1668             *q = NULL;
1669
1670             ret = get_errno(execve((const char *)arg1, argp, envp));
1671         }
1672         break;
1673     case TARGET_NR_chdir:
1674         ret = get_errno(chdir((const char *)arg1));
1675         break;
1676     case TARGET_NR_time:
1677         {
1678             int *time_ptr = (int *)arg1;
1679             ret = get_errno(time((time_t *)time_ptr));
1680             if (!is_error(ret) && time_ptr)
1681                 tswap32s(time_ptr);
1682         }
1683         break;
1684     case TARGET_NR_mknod:
1685         ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1686         break;
1687     case TARGET_NR_chmod:
1688         ret = get_errno(chmod((const char *)arg1, arg2));
1689         break;
1690 #ifdef TARGET_NR_break
1691     case TARGET_NR_break:
1692         goto unimplemented;
1693 #endif
1694 #ifdef TARGET_NR_oldstat
1695     case TARGET_NR_oldstat:
1696         goto unimplemented;
1697 #endif
1698     case TARGET_NR_lseek:
1699         ret = get_errno(lseek(arg1, arg2, arg3));
1700         break;
1701     case TARGET_NR_getpid:
1702         ret = get_errno(getpid());
1703         break;
1704     case TARGET_NR_mount:
1705         /* need to look at the data field */
1706         goto unimplemented;
1707     case TARGET_NR_umount:
1708         ret = get_errno(umount((const char *)arg1));
1709         break;
1710     case TARGET_NR_stime:
1711         {
1712             int *time_ptr = (int *)arg1;
1713             if (time_ptr)
1714                 tswap32s(time_ptr);
1715             ret = get_errno(stime((time_t *)time_ptr));
1716         }
1717         break;
1718     case TARGET_NR_ptrace:
1719         goto unimplemented;
1720     case TARGET_NR_alarm:
1721         ret = alarm(arg1);
1722         break;
1723 #ifdef TARGET_NR_oldfstat
1724     case TARGET_NR_oldfstat:
1725         goto unimplemented;
1726 #endif
1727     case TARGET_NR_pause:
1728         ret = get_errno(pause());
1729         break;
1730     case TARGET_NR_utime:
1731         {
1732             struct utimbuf tbuf;
1733             struct target_utimbuf *target_tbuf = (void *)arg2;
1734             tbuf.actime = tswapl(target_tbuf->actime);
1735             tbuf.modtime = tswapl(target_tbuf->modtime);
1736             ret = get_errno(utime((const char *)arg1, &tbuf));
1737         }
1738         break;
1739 #ifdef TARGET_NR_stty
1740     case TARGET_NR_stty:
1741         goto unimplemented;
1742 #endif
1743 #ifdef TARGET_NR_gtty
1744     case TARGET_NR_gtty:
1745         goto unimplemented;
1746 #endif
1747     case TARGET_NR_access:
1748         ret = get_errno(access((const char *)arg1, arg2));
1749         break;
1750     case TARGET_NR_nice:
1751         ret = get_errno(nice(arg1));
1752         break;
1753 #ifdef TARGET_NR_ftime
1754     case TARGET_NR_ftime:
1755         goto unimplemented;
1756 #endif
1757     case TARGET_NR_sync:
1758         sync();
1759         ret = 0;
1760         break;
1761     case TARGET_NR_kill:
1762         ret = get_errno(kill(arg1, arg2));
1763         break;
1764     case TARGET_NR_rename:
1765         ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1766         break;
1767     case TARGET_NR_mkdir:
1768         ret = get_errno(mkdir((const char *)arg1, arg2));
1769         break;
1770     case TARGET_NR_rmdir:
1771         ret = get_errno(rmdir((const char *)arg1));
1772         break;
1773     case TARGET_NR_dup:
1774         ret = get_errno(dup(arg1));
1775         break;
1776     case TARGET_NR_pipe:
1777         {
1778             int *pipe_ptr = (int *)arg1;
1779             ret = get_errno(pipe(pipe_ptr));
1780             if (!is_error(ret)) {
1781                 tswap32s(&pipe_ptr[0]);
1782                 tswap32s(&pipe_ptr[1]);
1783             }
1784         }
1785         break;
1786     case TARGET_NR_times:
1787         {
1788             struct target_tms *tmsp = (void *)arg1;
1789             struct tms tms;
1790             ret = get_errno(times(&tms));
1791             if (tmsp) {
1792                 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1793                 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1794                 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1795                 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1796             }
1797             if (!is_error(ret))
1798                 ret = host_to_target_clock_t(ret);
1799         }
1800         break;
1801 #ifdef TARGET_NR_prof
1802     case TARGET_NR_prof:
1803         goto unimplemented;
1804 #endif
1805     case TARGET_NR_signal:
1806         goto unimplemented;
1807
1808     case TARGET_NR_acct:
1809         goto unimplemented;
1810     case TARGET_NR_umount2:
1811         ret = get_errno(umount2((const char *)arg1, arg2));
1812         break;
1813 #ifdef TARGET_NR_lock
1814     case TARGET_NR_lock:
1815         goto unimplemented;
1816 #endif
1817     case TARGET_NR_ioctl:
1818         ret = do_ioctl(arg1, arg2, arg3);
1819         break;
1820     case TARGET_NR_fcntl:
1821         ret = get_errno(do_fcntl(arg1, arg2, arg3));
1822         break;
1823 #ifdef TARGET_NR_mpx
1824     case TARGET_NR_mpx:
1825         goto unimplemented;
1826 #endif
1827     case TARGET_NR_setpgid:
1828         ret = get_errno(setpgid(arg1, arg2));
1829         break;
1830 #ifdef TARGET_NR_ulimit
1831     case TARGET_NR_ulimit:
1832         goto unimplemented;
1833 #endif
1834 #ifdef TARGET_NR_oldolduname
1835     case TARGET_NR_oldolduname:
1836         goto unimplemented;
1837 #endif
1838     case TARGET_NR_umask:
1839         ret = get_errno(umask(arg1));
1840         break;
1841     case TARGET_NR_chroot:
1842         ret = get_errno(chroot((const char *)arg1));
1843         break;
1844     case TARGET_NR_ustat:
1845         goto unimplemented;
1846     case TARGET_NR_dup2:
1847         ret = get_errno(dup2(arg1, arg2));
1848         break;
1849     case TARGET_NR_getppid:
1850         ret = get_errno(getppid());
1851         break;
1852     case TARGET_NR_getpgrp:
1853         ret = get_errno(getpgrp());
1854         break;
1855     case TARGET_NR_setsid:
1856         ret = get_errno(setsid());
1857         break;
1858     case TARGET_NR_sigaction:
1859         {
1860             struct target_old_sigaction *old_act = (void *)arg2;
1861             struct target_old_sigaction *old_oact = (void *)arg3;
1862             struct target_sigaction act, oact, *pact;
1863             if (old_act) {
1864                 act._sa_handler = old_act->_sa_handler;
1865                 target_siginitset(&act.sa_mask, old_act->sa_mask);
1866                 act.sa_flags = old_act->sa_flags;
1867                 act.sa_restorer = old_act->sa_restorer;
1868                 pact = &act;
1869             } else {
1870                 pact = NULL;
1871             }
1872             ret = get_errno(do_sigaction(arg1, pact, &oact));
1873             if (!is_error(ret) && old_oact) {
1874                 old_oact->_sa_handler = oact._sa_handler;
1875                 old_oact->sa_mask = oact.sa_mask.sig[0];
1876                 old_oact->sa_flags = oact.sa_flags;
1877                 old_oact->sa_restorer = oact.sa_restorer;
1878             }
1879         }
1880         break;
1881     case TARGET_NR_rt_sigaction:
1882         ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1883         break;
1884     case TARGET_NR_sgetmask:
1885         {
1886             sigset_t cur_set;
1887             target_ulong target_set;
1888             sigprocmask(0, NULL, &cur_set);
1889             host_to_target_old_sigset(&target_set, &cur_set);
1890             ret = target_set;
1891         }
1892         break;
1893     case TARGET_NR_ssetmask:
1894         {
1895             sigset_t set, oset, cur_set;
1896             target_ulong target_set = arg1;
1897             sigprocmask(0, NULL, &cur_set);
1898             target_to_host_old_sigset(&set, &target_set);
1899             sigorset(&set, &set, &cur_set);
1900             sigprocmask(SIG_SETMASK, &set, &oset);
1901             host_to_target_old_sigset(&target_set, &oset);
1902             ret = target_set;
1903         }
1904         break;
1905     case TARGET_NR_sigprocmask:
1906         {
1907             int how = arg1;
1908             sigset_t set, oldset, *set_ptr;
1909             target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1910
1911             if (pset) {
1912                 switch(how) {
1913                 case TARGET_SIG_BLOCK:
1914                     how = SIG_BLOCK;
1915                     break;
1916                 case TARGET_SIG_UNBLOCK:
1917                     how = SIG_UNBLOCK;
1918                     break;
1919                 case TARGET_SIG_SETMASK:
1920                     how = SIG_SETMASK;
1921                     break;
1922                 default:
1923                     ret = -EINVAL;
1924                     goto fail;
1925                 }
1926                 target_to_host_old_sigset(&set, pset);
1927                 set_ptr = &set;
1928             } else {
1929                 how = 0;
1930                 set_ptr = NULL;
1931             }
1932             ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1933             if (!is_error(ret) && poldset) {
1934                 host_to_target_old_sigset(poldset, &oldset);
1935             }
1936         }
1937         break;
1938     case TARGET_NR_rt_sigprocmask:
1939         {
1940             int how = arg1;
1941             sigset_t set, oldset, *set_ptr;
1942             target_sigset_t *pset = (void *)arg2;
1943             target_sigset_t *poldset = (void *)arg3;
1944
1945             if (pset) {
1946                 switch(how) {
1947                 case TARGET_SIG_BLOCK:
1948                     how = SIG_BLOCK;
1949                     break;
1950                 case TARGET_SIG_UNBLOCK:
1951                     how = SIG_UNBLOCK;
1952                     break;
1953                 case TARGET_SIG_SETMASK:
1954                     how = SIG_SETMASK;
1955                     break;
1956                 default:
1957                     ret = -EINVAL;
1958                     goto fail;
1959                 }
1960                 target_to_host_sigset(&set, pset);
1961                 set_ptr = &set;
1962             } else {
1963                 how = 0;
1964                 set_ptr = NULL;
1965             }
1966             ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1967             if (!is_error(ret) && poldset) {
1968                 host_to_target_sigset(poldset, &oldset);
1969             }
1970         }
1971         break;
1972     case TARGET_NR_sigpending:
1973         {
1974             sigset_t set;
1975             ret = get_errno(sigpending(&set));
1976             if (!is_error(ret)) {
1977                 host_to_target_old_sigset((target_ulong *)arg1, &set);
1978             }
1979         }
1980         break;
1981     case TARGET_NR_rt_sigpending:
1982         {
1983             sigset_t set;
1984             ret = get_errno(sigpending(&set));
1985             if (!is_error(ret)) {
1986                 host_to_target_sigset((target_sigset_t *)arg1, &set);
1987             }
1988         }
1989         break;
1990     case TARGET_NR_sigsuspend:
1991         {
1992             sigset_t set;
1993             target_to_host_old_sigset(&set, (target_ulong *)arg1);
1994             ret = get_errno(sigsuspend(&set));
1995         }
1996         break;
1997     case TARGET_NR_rt_sigsuspend:
1998         {
1999             sigset_t set;
2000             target_to_host_sigset(&set, (target_sigset_t *)arg1);
2001             ret = get_errno(sigsuspend(&set));
2002         }
2003         break;
2004     case TARGET_NR_rt_sigtimedwait:
2005         {
2006             target_sigset_t *target_set = (void *)arg1;
2007             target_siginfo_t *target_uinfo = (void *)arg2;
2008             struct target_timespec *target_uts = (void *)arg3;
2009             sigset_t set;
2010             struct timespec uts, *puts;
2011             siginfo_t uinfo;
2012
2013             target_to_host_sigset(&set, target_set);
2014             if (target_uts) {
2015                 puts = &uts;
2016                 puts->tv_sec = tswapl(target_uts->tv_sec);
2017                 puts->tv_nsec = tswapl(target_uts->tv_nsec);
2018             } else {
2019                 puts = NULL;
2020             }
2021             ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2022             if (!is_error(ret) && target_uinfo) {
2023                 host_to_target_siginfo(target_uinfo, &uinfo);
2024             }
2025         }
2026         break;
2027     case TARGET_NR_rt_sigqueueinfo:
2028         {
2029             siginfo_t uinfo;
2030             target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
2031             ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2032         }
2033         break;
2034     case TARGET_NR_sigreturn:
2035         /* NOTE: ret is eax, so not transcoding must be done */
2036         ret = do_sigreturn(cpu_env);
2037         break;
2038     case TARGET_NR_rt_sigreturn:
2039         /* NOTE: ret is eax, so not transcoding must be done */
2040         ret = do_rt_sigreturn(cpu_env);
2041         break;
2042     case TARGET_NR_sethostname:
2043         ret = get_errno(sethostname((const char *)arg1, arg2));
2044         break;
2045     case TARGET_NR_setrlimit:
2046         {
2047             /* XXX: convert resource ? */
2048             int resource = arg1;
2049             struct target_rlimit *target_rlim = (void *)arg2;
2050             struct rlimit rlim;
2051             rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2052             rlim.rlim_max = tswapl(target_rlim->rlim_max);
2053             ret = get_errno(setrlimit(resource, &rlim));
2054         }
2055         break;
2056     case TARGET_NR_getrlimit:
2057         {
2058             /* XXX: convert resource ? */
2059             int resource = arg1;
2060             struct target_rlimit *target_rlim = (void *)arg2;
2061             struct rlimit rlim;
2062
2063             ret = get_errno(getrlimit(resource, &rlim));
2064             if (!is_error(ret)) {
2065                 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2066                 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2067             }
2068         }
2069         break;
2070     case TARGET_NR_getrusage:
2071         {
2072             struct rusage rusage;
2073             struct target_rusage *target_rusage = (void *)arg2;
2074             ret = get_errno(getrusage(arg1, &rusage));
2075             if (!is_error(ret)) {
2076                 host_to_target_rusage(target_rusage, &rusage);
2077             }
2078         }
2079         break;
2080     case TARGET_NR_gettimeofday:
2081         {
2082             struct target_timeval *target_tv = (void *)arg1;
2083             struct timeval tv;
2084             ret = get_errno(gettimeofday(&tv, NULL));
2085             if (!is_error(ret)) {
2086                 host_to_target_timeval(target_tv, &tv);
2087             }
2088         }
2089         break;
2090     case TARGET_NR_settimeofday:
2091         {
2092             struct target_timeval *target_tv = (void *)arg1;
2093             struct timeval tv;
2094             target_to_host_timeval(&tv, target_tv);
2095             ret = get_errno(settimeofday(&tv, NULL));
2096         }
2097         break;
2098     case TARGET_NR_select:
2099         {
2100             struct target_sel_arg_struct *sel = (void *)arg1;
2101             sel->n = tswapl(sel->n);
2102             sel->inp = tswapl(sel->inp);
2103             sel->outp = tswapl(sel->outp);
2104             sel->exp = tswapl(sel->exp);
2105             sel->tvp = tswapl(sel->tvp);
2106             ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
2107                             (void *)sel->exp, (void *)sel->tvp);
2108         }
2109         break;
2110     case TARGET_NR_symlink:
2111         ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
2112         break;
2113 #ifdef TARGET_NR_oldlstat
2114     case TARGET_NR_oldlstat:
2115         goto unimplemented;
2116 #endif
2117     case TARGET_NR_readlink:
2118         ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
2119         break;
2120     case TARGET_NR_uselib:
2121         goto unimplemented;
2122     case TARGET_NR_swapon:
2123         ret = get_errno(swapon((const char *)arg1, arg2));
2124         break;
2125     case TARGET_NR_reboot:
2126         goto unimplemented;
2127     case TARGET_NR_readdir:
2128         goto unimplemented;
2129     case TARGET_NR_mmap:
2130 #if defined(TARGET_I386) || defined(TARGET_ARM)
2131         {
2132             uint32_t v1, v2, v3, v4, v5, v6, *vptr;
2133             vptr = (uint32_t *)arg1;
2134             v1 = tswap32(vptr[0]);
2135             v2 = tswap32(vptr[1]);
2136             v3 = tswap32(vptr[2]);
2137             v4 = tswap32(vptr[3]);
2138             v5 = tswap32(vptr[4]);
2139             v6 = tswap32(vptr[5]);
2140             ret = get_errno(target_mmap(v1, v2, v3,
2141                                         target_to_host_bitmask(v4, mmap_flags_tbl),
2142                                         v5, v6));
2143         }
2144 #else
2145         ret = get_errno(target_mmap(arg1, arg2, arg3,
2146                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2147                                     arg5,
2148                                     arg6));
2149 #endif
2150         break;
2151     case TARGET_NR_mmap2:
2152 #if defined(TARGET_SPARC)
2153 #define MMAP_SHIFT 12
2154 #else
2155 #define MMAP_SHIFT TARGET_PAGE_BITS
2156 #endif
2157         ret = get_errno(target_mmap(arg1, arg2, arg3,
2158                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2159                                     arg5,
2160                                     arg6 << MMAP_SHIFT));
2161         break;
2162     case TARGET_NR_munmap:
2163         ret = get_errno(target_munmap(arg1, arg2));
2164         break;
2165     case TARGET_NR_mprotect:
2166         ret = get_errno(target_mprotect(arg1, arg2, arg3));
2167         break;
2168     case TARGET_NR_mremap:
2169         ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2170         break;
2171     case TARGET_NR_msync:
2172         ret = get_errno(msync((void *)arg1, arg2, arg3));
2173         break;
2174     case TARGET_NR_mlock:
2175         ret = get_errno(mlock((void *)arg1, arg2));
2176         break;
2177     case TARGET_NR_munlock:
2178         ret = get_errno(munlock((void *)arg1, arg2));
2179         break;
2180     case TARGET_NR_mlockall:
2181         ret = get_errno(mlockall(arg1));
2182         break;
2183     case TARGET_NR_munlockall:
2184         ret = get_errno(munlockall());
2185         break;
2186     case TARGET_NR_truncate:
2187         ret = get_errno(truncate((const char *)arg1, arg2));
2188         break;
2189     case TARGET_NR_ftruncate:
2190         ret = get_errno(ftruncate(arg1, arg2));
2191         break;
2192     case TARGET_NR_fchmod:
2193         ret = get_errno(fchmod(arg1, arg2));
2194         break;
2195     case TARGET_NR_getpriority:
2196         ret = get_errno(getpriority(arg1, arg2));
2197         break;
2198     case TARGET_NR_setpriority:
2199         ret = get_errno(setpriority(arg1, arg2, arg3));
2200         break;
2201 #ifdef TARGET_NR_profil
2202     case TARGET_NR_profil:
2203         goto unimplemented;
2204 #endif
2205     case TARGET_NR_statfs:
2206         stfs = (void *)arg2;
2207         ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2208     convert_statfs:
2209         if (!is_error(ret)) {
2210             tswap32s(&stfs->f_type);
2211             tswap32s(&stfs->f_bsize);
2212             tswap32s(&stfs->f_blocks);
2213             tswap32s(&stfs->f_bfree);
2214             tswap32s(&stfs->f_bavail);
2215             tswap32s(&stfs->f_files);
2216             tswap32s(&stfs->f_ffree);
2217             tswap32s(&stfs->f_fsid.val[0]);
2218             tswap32s(&stfs->f_fsid.val[1]);
2219             tswap32s(&stfs->f_namelen);
2220         }
2221         break;
2222     case TARGET_NR_fstatfs:
2223         stfs = (void *)arg2;
2224         ret = get_errno(sys_fstatfs(arg1, stfs));
2225         goto convert_statfs;
2226 #ifdef TARGET_NR_ioperm
2227     case TARGET_NR_ioperm:
2228         goto unimplemented;
2229 #endif
2230     case TARGET_NR_socketcall:
2231         ret = do_socketcall(arg1, (int32_t *)arg2);
2232         break;
2233     case TARGET_NR_syslog:
2234         goto unimplemented;
2235     case TARGET_NR_setitimer:
2236         {
2237             struct target_itimerval *target_value = (void *)arg2;
2238             struct target_itimerval *target_ovalue = (void *)arg3;
2239             struct itimerval value, ovalue, *pvalue;
2240
2241             if (target_value) {
2242                 pvalue = &value;
2243                 target_to_host_timeval(&pvalue->it_interval,
2244                                        &target_value->it_interval);
2245                 target_to_host_timeval(&pvalue->it_value,
2246                                        &target_value->it_value);
2247             } else {
2248                 pvalue = NULL;
2249             }
2250             ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2251             if (!is_error(ret) && target_ovalue) {
2252                 host_to_target_timeval(&target_ovalue->it_interval,
2253                                        &ovalue.it_interval);
2254                 host_to_target_timeval(&target_ovalue->it_value,
2255                                        &ovalue.it_value);
2256             }
2257         }
2258         break;
2259     case TARGET_NR_getitimer:
2260         {
2261             struct target_itimerval *target_value = (void *)arg2;
2262             struct itimerval value;
2263
2264             ret = get_errno(getitimer(arg1, &value));
2265             if (!is_error(ret) && target_value) {
2266                 host_to_target_timeval(&target_value->it_interval,
2267                                        &value.it_interval);
2268                 host_to_target_timeval(&target_value->it_value,
2269                                        &value.it_value);
2270             }
2271         }
2272         break;
2273     case TARGET_NR_stat:
2274         ret = get_errno(stat(path((const char *)arg1), &st));
2275         goto do_stat;
2276     case TARGET_NR_lstat:
2277         ret = get_errno(lstat(path((const char *)arg1), &st));
2278         goto do_stat;
2279     case TARGET_NR_fstat:
2280         {
2281             ret = get_errno(fstat(arg1, &st));
2282         do_stat:
2283             if (!is_error(ret)) {
2284                 struct target_stat *target_st = (void *)arg2;
2285                 target_st->st_dev = tswap16(st.st_dev);
2286                 target_st->st_ino = tswapl(st.st_ino);
2287 #if defined(TARGET_PPC)
2288                 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2289                 target_st->st_uid = tswap32(st.st_uid);
2290                 target_st->st_gid = tswap32(st.st_gid);
2291 #else
2292                 target_st->st_mode = tswap16(st.st_mode);
2293                 target_st->st_uid = tswap16(st.st_uid);
2294                 target_st->st_gid = tswap16(st.st_gid);
2295 #endif
2296                 target_st->st_nlink = tswap16(st.st_nlink);
2297                 target_st->st_rdev = tswap16(st.st_rdev);
2298                 target_st->st_size = tswapl(st.st_size);
2299                 target_st->st_blksize = tswapl(st.st_blksize);
2300                 target_st->st_blocks = tswapl(st.st_blocks);
2301                 target_st->target_st_atime = tswapl(st.st_atime);
2302                 target_st->target_st_mtime = tswapl(st.st_mtime);
2303                 target_st->target_st_ctime = tswapl(st.st_ctime);
2304             }
2305         }
2306         break;
2307 #ifdef TARGET_NR_olduname
2308     case TARGET_NR_olduname:
2309         goto unimplemented;
2310 #endif
2311 #ifdef TARGET_NR_iopl
2312     case TARGET_NR_iopl:
2313         goto unimplemented;
2314 #endif
2315     case TARGET_NR_vhangup:
2316         ret = get_errno(vhangup());
2317         break;
2318 #ifdef TARGET_NR_idle
2319     case TARGET_NR_idle:
2320         goto unimplemented;
2321 #endif
2322     case TARGET_NR_wait4:
2323         {
2324             int status;
2325             target_long *status_ptr = (void *)arg2;
2326             struct rusage rusage, *rusage_ptr;
2327             struct target_rusage *target_rusage = (void *)arg4;
2328             if (target_rusage)
2329                 rusage_ptr = &rusage;
2330             else
2331                 rusage_ptr = NULL;
2332             ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2333             if (!is_error(ret)) {
2334                 if (status_ptr)
2335                     *status_ptr = tswap32(status);
2336                 if (target_rusage) {
2337                     host_to_target_rusage(target_rusage, &rusage);
2338                 }
2339             }
2340         }
2341         break;
2342     case TARGET_NR_swapoff:
2343         ret = get_errno(swapoff((const char *)arg1));
2344         break;
2345     case TARGET_NR_sysinfo:
2346         goto unimplemented;
2347     case TARGET_NR_ipc:
2348         ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2349         break;
2350     case TARGET_NR_fsync:
2351         ret = get_errno(fsync(arg1));
2352         break;
2353     case TARGET_NR_clone:
2354         ret = get_errno(do_fork(cpu_env, arg1, arg2));
2355         break;
2356 #ifdef __NR_exit_group
2357         /* new thread calls */
2358     case TARGET_NR_exit_group:
2359         ret = get_errno(exit_group(arg1));
2360         break;
2361 #endif
2362     case TARGET_NR_setdomainname:
2363         ret = get_errno(setdomainname((const char *)arg1, arg2));
2364         break;
2365     case TARGET_NR_uname:
2366         /* no need to transcode because we use the linux syscall */
2367         ret = get_errno(sys_uname((struct new_utsname *)arg1));
2368         break;
2369 #ifdef TARGET_I386
2370     case TARGET_NR_modify_ldt:
2371         ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2372         break;
2373     case TARGET_NR_vm86old:
2374         goto unimplemented;
2375     case TARGET_NR_vm86:
2376         ret = do_vm86(cpu_env, arg1, (void *)arg2);
2377         break;
2378 #endif
2379     case TARGET_NR_adjtimex:
2380         goto unimplemented;
2381     case TARGET_NR_create_module:
2382     case TARGET_NR_init_module:
2383     case TARGET_NR_delete_module:
2384     case TARGET_NR_get_kernel_syms:
2385         goto unimplemented;
2386     case TARGET_NR_quotactl:
2387         goto unimplemented;
2388     case TARGET_NR_getpgid:
2389         ret = get_errno(getpgid(arg1));
2390         break;
2391     case TARGET_NR_fchdir:
2392         ret = get_errno(fchdir(arg1));
2393         break;
2394     case TARGET_NR_bdflush:
2395         goto unimplemented;
2396     case TARGET_NR_sysfs:
2397         goto unimplemented;
2398     case TARGET_NR_personality:
2399         ret = get_errno(personality(arg1));
2400         break;
2401     case TARGET_NR_afs_syscall:
2402         goto unimplemented;
2403     case TARGET_NR__llseek:
2404         {
2405             int64_t res;
2406             ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2407             *(int64_t *)arg4 = tswap64(res);
2408         }
2409         break;
2410     case TARGET_NR_getdents:
2411 #if TARGET_LONG_SIZE != 4
2412 #error not supported
2413 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2414         {
2415             struct target_dirent *target_dirp = (void *)arg2;
2416             struct dirent *dirp;
2417             long count = arg3;
2418
2419             dirp = malloc(count);
2420             if (!dirp)
2421                 return -ENOMEM;
2422
2423             ret = get_errno(sys_getdents(arg1, dirp, count));
2424             if (!is_error(ret)) {
2425                 struct dirent *de;
2426                 struct target_dirent *tde;
2427                 int len = ret;
2428                 int reclen, treclen;
2429                 int count1, tnamelen;
2430
2431                 count1 = 0;
2432                 de = dirp;
2433                 tde = target_dirp;
2434                 while (len > 0) {
2435                     reclen = de->d_reclen;
2436                     treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2437                     tde->d_reclen = tswap16(treclen);
2438                     tde->d_ino = tswapl(de->d_ino);
2439                     tde->d_off = tswapl(de->d_off);
2440                     tnamelen = treclen - (2 * sizeof(target_long) + 2);
2441                     if (tnamelen > 256)
2442                         tnamelen = 256;
2443                     strncpy(tde->d_name, de->d_name, tnamelen);
2444                     de = (struct dirent *)((char *)de + reclen);
2445                     len -= reclen;
2446                     tde = (struct dirent *)((char *)tde + treclen);
2447                     count1 += treclen;
2448                 }
2449                 ret = count1;
2450             }
2451             free(dirp);
2452         }
2453 #else
2454         {
2455             struct dirent *dirp = (void *)arg2;
2456             long count = arg3;
2457
2458             ret = get_errno(sys_getdents(arg1, dirp, count));
2459             if (!is_error(ret)) {
2460                 struct dirent *de;
2461                 int len = ret;
2462                 int reclen;
2463                 de = dirp;
2464                 while (len > 0) {
2465                     reclen = de->d_reclen;
2466                     if (reclen > len)
2467                         break;
2468                     de->d_reclen = tswap16(reclen);
2469                     tswapls(&de->d_ino);
2470                     tswapls(&de->d_off);
2471                     de = (struct dirent *)((char *)de + reclen);
2472                     len -= reclen;
2473                 }
2474             }
2475         }
2476 #endif
2477         break;
2478     case TARGET_NR_getdents64:
2479         {
2480             struct dirent64 *dirp = (void *)arg2;
2481             long count = arg3;
2482             ret = get_errno(sys_getdents64(arg1, dirp, count));
2483             if (!is_error(ret)) {
2484                 struct dirent64 *de;
2485                 int len = ret;
2486                 int reclen;
2487                 de = dirp;
2488                 while (len > 0) {
2489                     reclen = de->d_reclen;
2490                     if (reclen > len)
2491                         break;
2492                     de->d_reclen = tswap16(reclen);
2493                     tswap64s(&de->d_ino);
2494                     tswap64s(&de->d_off);
2495                     de = (struct dirent64 *)((char *)de + reclen);
2496                     len -= reclen;
2497                 }
2498             }
2499         }
2500         break;
2501     case TARGET_NR__newselect:
2502         ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2503                         (void *)arg5);
2504         break;
2505     case TARGET_NR_poll:
2506         {
2507             struct target_pollfd *target_pfd = (void *)arg1;
2508             unsigned int nfds = arg2;
2509             int timeout = arg3;
2510             struct pollfd *pfd;
2511             unsigned int i;
2512
2513             pfd = alloca(sizeof(struct pollfd) * nfds);
2514             for(i = 0; i < nfds; i++) {
2515                 pfd[i].fd = tswap32(target_pfd[i].fd);
2516                 pfd[i].events = tswap16(target_pfd[i].events);
2517             }
2518             ret = get_errno(poll(pfd, nfds, timeout));
2519             if (!is_error(ret)) {
2520                 for(i = 0; i < nfds; i++) {
2521                     target_pfd[i].revents = tswap16(pfd[i].revents);
2522                 }
2523             }
2524         }
2525         break;
2526     case TARGET_NR_flock:
2527         /* NOTE: the flock constant seems to be the same for every
2528            Linux platform */
2529         ret = get_errno(flock(arg1, arg2));
2530         break;
2531     case TARGET_NR_readv:
2532         {
2533             int count = arg3;
2534             int i;
2535             struct iovec *vec;
2536             struct target_iovec *target_vec = (void *)arg2;
2537
2538             vec = alloca(count * sizeof(struct iovec));
2539             for(i = 0;i < count; i++) {
2540                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2541                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2542             }
2543             ret = get_errno(readv(arg1, vec, count));
2544         }
2545         break;
2546     case TARGET_NR_writev:
2547         {
2548             int count = arg3;
2549             int i;
2550             struct iovec *vec;
2551             struct target_iovec *target_vec = (void *)arg2;
2552
2553             vec = alloca(count * sizeof(struct iovec));
2554             for(i = 0;i < count; i++) {
2555                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2556                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2557             }
2558             ret = get_errno(writev(arg1, vec, count));
2559         }
2560         break;
2561     case TARGET_NR_getsid:
2562         ret = get_errno(getsid(arg1));
2563         break;
2564     case TARGET_NR_fdatasync:
2565         ret = get_errno(fdatasync(arg1));
2566         break;
2567     case TARGET_NR__sysctl:
2568         goto unimplemented;
2569     case TARGET_NR_sched_setparam:
2570         {
2571             struct sched_param *target_schp = (void *)arg2;
2572             struct sched_param schp;
2573             schp.sched_priority = tswap32(target_schp->sched_priority);
2574             ret = get_errno(sched_setparam(arg1, &schp));
2575         }
2576         break;
2577     case TARGET_NR_sched_getparam:
2578         {
2579             struct sched_param *target_schp = (void *)arg2;
2580             struct sched_param schp;
2581             ret = get_errno(sched_getparam(arg1, &schp));
2582             if (!is_error(ret)) {
2583                 target_schp->sched_priority = tswap32(schp.sched_priority);
2584             }
2585         }
2586         break;
2587     case TARGET_NR_sched_setscheduler:
2588         {
2589             struct sched_param *target_schp = (void *)arg3;
2590             struct sched_param schp;
2591             schp.sched_priority = tswap32(target_schp->sched_priority);
2592             ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2593         }
2594         break;
2595     case TARGET_NR_sched_getscheduler:
2596         ret = get_errno(sched_getscheduler(arg1));
2597         break;
2598     case TARGET_NR_sched_yield:
2599         ret = get_errno(sched_yield());
2600         break;
2601     case TARGET_NR_sched_get_priority_max:
2602         ret = get_errno(sched_get_priority_max(arg1));
2603         break;
2604     case TARGET_NR_sched_get_priority_min:
2605         ret = get_errno(sched_get_priority_min(arg1));
2606         break;
2607     case TARGET_NR_sched_rr_get_interval:
2608         {
2609             struct target_timespec *target_ts = (void *)arg2;
2610             struct timespec ts;
2611             ret = get_errno(sched_rr_get_interval(arg1, &ts));
2612             if (!is_error(ret)) {
2613                 target_ts->tv_sec = tswapl(ts.tv_sec);
2614                 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2615             }
2616         }
2617         break;
2618     case TARGET_NR_nanosleep:
2619         {
2620             struct target_timespec *target_req = (void *)arg1;
2621             struct target_timespec *target_rem = (void *)arg2;
2622             struct timespec req, rem;
2623             req.tv_sec = tswapl(target_req->tv_sec);
2624             req.tv_nsec = tswapl(target_req->tv_nsec);
2625             ret = get_errno(nanosleep(&req, &rem));
2626             if (is_error(ret) && target_rem) {
2627                 target_rem->tv_sec = tswapl(rem.tv_sec);
2628                 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2629             }
2630         }
2631         break;
2632     case TARGET_NR_query_module:
2633         goto unimplemented;
2634     case TARGET_NR_nfsservctl:
2635         goto unimplemented;
2636     case TARGET_NR_prctl:
2637         goto unimplemented;
2638 #ifdef TARGET_NR_pread
2639     case TARGET_NR_pread:
2640         page_unprotect_range((void *)arg2, arg3);
2641         ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2642         break;
2643     case TARGET_NR_pwrite:
2644         ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2645         break;
2646 #endif
2647     case TARGET_NR_getcwd:
2648         ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2649         break;
2650     case TARGET_NR_capget:
2651         goto unimplemented;
2652     case TARGET_NR_capset:
2653         goto unimplemented;
2654     case TARGET_NR_sigaltstack:
2655         goto unimplemented;
2656     case TARGET_NR_sendfile:
2657         goto unimplemented;
2658 #ifdef TARGET_NR_getpmsg
2659     case TARGET_NR_getpmsg:
2660         goto unimplemented;
2661 #endif
2662 #ifdef TARGET_NR_putpmsg
2663     case TARGET_NR_putpmsg:
2664         goto unimplemented;
2665 #endif
2666     case TARGET_NR_vfork:
2667         ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2668         break;
2669 #ifdef TARGET_NR_ugetrlimit
2670     case TARGET_NR_ugetrlimit:
2671     {
2672         struct rlimit rlim;
2673         ret = get_errno(getrlimit(arg1, &rlim));
2674         if (!is_error(ret)) {
2675             struct target_rlimit *target_rlim = (void *)arg2;
2676             target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2677             target_rlim->rlim_max = tswapl(rlim.rlim_max);
2678         }
2679         break;
2680     }
2681 #endif
2682     case TARGET_NR_truncate64:
2683         goto unimplemented;
2684     case TARGET_NR_ftruncate64:
2685         goto unimplemented;
2686     case TARGET_NR_stat64:
2687         ret = get_errno(stat(path((const char *)arg1), &st));
2688         goto do_stat64;
2689     case TARGET_NR_lstat64:
2690         ret = get_errno(lstat(path((const char *)arg1), &st));
2691         goto do_stat64;
2692     case TARGET_NR_fstat64:
2693         {
2694             ret = get_errno(fstat(arg1, &st));
2695         do_stat64:
2696             if (!is_error(ret)) {
2697                 struct target_stat64 *target_st = (void *)arg2;
2698                 memset(target_st, 0, sizeof(struct target_stat64));
2699                 put_user(st.st_dev, &target_st->st_dev);
2700                 put_user(st.st_ino, &target_st->st_ino);
2701 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2702                 put_user(st.st_ino, &target_st->__st_ino);
2703 #endif
2704                 put_user(st.st_mode, &target_st->st_mode);
2705                 put_user(st.st_nlink, &target_st->st_nlink);
2706                 put_user(st.st_uid, &target_st->st_uid);
2707                 put_user(st.st_gid, &target_st->st_gid);
2708                 put_user(st.st_rdev, &target_st->st_rdev);
2709                 /* XXX: better use of kernel struct */
2710                 put_user(st.st_size, &target_st->st_size);
2711                 put_user(st.st_blksize, &target_st->st_blksize);
2712                 put_user(st.st_blocks, &target_st->st_blocks);
2713                 put_user(st.st_atime, &target_st->target_st_atime);
2714                 put_user(st.st_mtime, &target_st->target_st_mtime);
2715                 put_user(st.st_ctime, &target_st->target_st_ctime);
2716             }
2717         }
2718         break;
2719
2720 #ifdef USE_UID16
2721     case TARGET_NR_lchown:
2722         ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2723         break;
2724     case TARGET_NR_getuid:
2725         ret = get_errno(high2lowuid(getuid()));
2726         break;
2727     case TARGET_NR_getgid:
2728         ret = get_errno(high2lowgid(getgid()));
2729         break;
2730     case TARGET_NR_geteuid:
2731         ret = get_errno(high2lowuid(geteuid()));
2732         break;
2733     case TARGET_NR_getegid:
2734         ret = get_errno(high2lowgid(getegid()));
2735         break;
2736     case TARGET_NR_setreuid:
2737         ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2738         break;
2739     case TARGET_NR_setregid:
2740         ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2741         break;
2742     case TARGET_NR_getgroups:
2743         {
2744             int gidsetsize = arg1;
2745             uint16_t *target_grouplist = (void *)arg2;
2746             gid_t *grouplist;
2747             int i;
2748
2749             grouplist = alloca(gidsetsize * sizeof(gid_t));
2750             ret = get_errno(getgroups(gidsetsize, grouplist));
2751             if (!is_error(ret)) {
2752                 for(i = 0;i < gidsetsize; i++)
2753                     target_grouplist[i] = tswap16(grouplist[i]);
2754             }
2755         }
2756         break;
2757     case TARGET_NR_setgroups:
2758         {
2759             int gidsetsize = arg1;
2760             uint16_t *target_grouplist = (void *)arg2;
2761             gid_t *grouplist;
2762             int i;
2763
2764             grouplist = alloca(gidsetsize * sizeof(gid_t));
2765             for(i = 0;i < gidsetsize; i++)
2766                 grouplist[i] = tswap16(target_grouplist[i]);
2767             ret = get_errno(setgroups(gidsetsize, grouplist));
2768         }
2769         break;
2770     case TARGET_NR_fchown:
2771         ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2772         break;
2773 #ifdef TARGET_NR_setresuid
2774     case TARGET_NR_setresuid:
2775         ret = get_errno(setresuid(low2highuid(arg1),
2776                                   low2highuid(arg2),
2777                                   low2highuid(arg3)));
2778         break;
2779 #endif
2780 #ifdef TARGET_NR_getresuid
2781     case TARGET_NR_getresuid:
2782         {
2783             int ruid, euid, suid;
2784             ret = get_errno(getresuid(&ruid, &euid, &suid));
2785             if (!is_error(ret)) {
2786                 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2787                 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2788                 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2789             }
2790         }
2791         break;
2792 #endif
2793 #ifdef TARGET_NR_getresgid
2794     case TARGET_NR_setresgid:
2795         ret = get_errno(setresgid(low2highgid(arg1),
2796                                   low2highgid(arg2),
2797                                   low2highgid(arg3)));
2798         break;
2799 #endif
2800 #ifdef TARGET_NR_getresgid
2801     case TARGET_NR_getresgid:
2802         {
2803             int rgid, egid, sgid;
2804             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2805             if (!is_error(ret)) {
2806                 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2807                 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2808                 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2809             }
2810         }
2811         break;
2812 #endif
2813     case TARGET_NR_chown:
2814         ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2815         break;
2816     case TARGET_NR_setuid:
2817         ret = get_errno(setuid(low2highuid(arg1)));
2818         break;
2819     case TARGET_NR_setgid:
2820         ret = get_errno(setgid(low2highgid(arg1)));
2821         break;
2822     case TARGET_NR_setfsuid:
2823         ret = get_errno(setfsuid(arg1));
2824         break;
2825     case TARGET_NR_setfsgid:
2826         ret = get_errno(setfsgid(arg1));
2827         break;
2828 #endif /* USE_UID16 */
2829
2830     case TARGET_NR_lchown32:
2831         ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2832         break;
2833     case TARGET_NR_getuid32:
2834         ret = get_errno(getuid());
2835         break;
2836     case TARGET_NR_getgid32:
2837         ret = get_errno(getgid());
2838         break;
2839     case TARGET_NR_geteuid32:
2840         ret = get_errno(geteuid());
2841         break;
2842     case TARGET_NR_getegid32:
2843         ret = get_errno(getegid());
2844         break;
2845     case TARGET_NR_setreuid32:
2846         ret = get_errno(setreuid(arg1, arg2));
2847         break;
2848     case TARGET_NR_setregid32:
2849         ret = get_errno(setregid(arg1, arg2));
2850         break;
2851     case TARGET_NR_getgroups32:
2852         goto unimplemented;
2853     case TARGET_NR_setgroups32:
2854         goto unimplemented;
2855     case TARGET_NR_fchown32:
2856         ret = get_errno(fchown(arg1, arg2, arg3));
2857         break;
2858     case TARGET_NR_setresuid32:
2859         ret = get_errno(setresuid(arg1, arg2, arg3));
2860         break;
2861     case TARGET_NR_getresuid32:
2862         {
2863             int ruid, euid, suid;
2864             ret = get_errno(getresuid(&ruid, &euid, &suid));
2865             if (!is_error(ret)) {
2866                 *(uint32_t *)arg1 = tswap32(ruid);
2867                 *(uint32_t *)arg2 = tswap32(euid);
2868                 *(uint32_t *)arg3 = tswap32(suid);
2869             }
2870         }
2871         break;
2872     case TARGET_NR_setresgid32:
2873         ret = get_errno(setresgid(arg1, arg2, arg3));
2874         break;
2875     case TARGET_NR_getresgid32:
2876         {
2877             int rgid, egid, sgid;
2878             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2879             if (!is_error(ret)) {
2880                 *(uint32_t *)arg1 = tswap32(rgid);
2881                 *(uint32_t *)arg2 = tswap32(egid);
2882                 *(uint32_t *)arg3 = tswap32(sgid);
2883             }
2884         }
2885         break;
2886     case TARGET_NR_chown32:
2887         ret = get_errno(chown((const char *)arg1, arg2, arg3));
2888         break;
2889     case TARGET_NR_setuid32:
2890         ret = get_errno(setuid(arg1));
2891         break;
2892     case TARGET_NR_setgid32:
2893         ret = get_errno(setgid(arg1));
2894         break;
2895     case TARGET_NR_setfsuid32:
2896         ret = get_errno(setfsuid(arg1));
2897         break;
2898     case TARGET_NR_setfsgid32:
2899         ret = get_errno(setfsgid(arg1));
2900         break;
2901
2902     case TARGET_NR_pivot_root:
2903         goto unimplemented;
2904 #ifdef TARGET_NR_mincore
2905     case TARGET_NR_mincore:
2906         goto unimplemented;
2907 #endif
2908 #ifdef TARGET_NR_madvise
2909     case TARGET_NR_madvise:
2910         goto unimplemented;
2911 #endif
2912 #if TARGET_LONG_BITS == 32
2913     case TARGET_NR_fcntl64:
2914     {
2915         struct flock64 fl;
2916         struct target_flock64 *target_fl = (void *)arg3;
2917
2918         switch(arg2) {
2919         case F_GETLK64:
2920             ret = get_errno(fcntl(arg1, arg2, &fl));
2921             if (ret == 0) {
2922                 target_fl->l_type = tswap16(fl.l_type);
2923                 target_fl->l_whence = tswap16(fl.l_whence);
2924                 target_fl->l_start = tswap64(fl.l_start);
2925                 target_fl->l_len = tswap64(fl.l_len);
2926                 target_fl->l_pid = tswapl(fl.l_pid);
2927             }
2928             break;
2929
2930         case F_SETLK64:
2931         case F_SETLKW64:
2932             fl.l_type = tswap16(target_fl->l_type);
2933             fl.l_whence = tswap16(target_fl->l_whence);
2934             fl.l_start = tswap64(target_fl->l_start);
2935             fl.l_len = tswap64(target_fl->l_len);
2936             fl.l_pid = tswapl(target_fl->l_pid);
2937             ret = get_errno(fcntl(arg1, arg2, &fl));
2938             break;
2939         default:
2940             ret = get_errno(do_fcntl(arg1, arg2, arg3));
2941             break;
2942         }
2943         break;
2944     }
2945 #endif
2946 #ifdef TARGET_NR_security
2947     case TARGET_NR_security:
2948         goto unimplemented;
2949 #endif
2950 #ifdef TARGET_NR_getpagesize
2951     case TARGET_NR_getpagesize:
2952         ret = TARGET_PAGE_SIZE;
2953         break;
2954 #endif
2955     case TARGET_NR_gettid:
2956         ret = get_errno(gettid());
2957         break;
2958     case TARGET_NR_readahead:
2959         goto unimplemented;
2960 #ifdef TARGET_NR_setxattr
2961     case TARGET_NR_setxattr:
2962     case TARGET_NR_lsetxattr:
2963     case TARGET_NR_fsetxattr:
2964     case TARGET_NR_getxattr:
2965     case TARGET_NR_lgetxattr:
2966     case TARGET_NR_fgetxattr:
2967     case TARGET_NR_listxattr:
2968     case TARGET_NR_llistxattr:
2969     case TARGET_NR_flistxattr:
2970     case TARGET_NR_removexattr:
2971     case TARGET_NR_lremovexattr:
2972     case TARGET_NR_fremovexattr:
2973         goto unimplemented_nowarn;
2974 #endif
2975 #ifdef TARGET_NR_set_thread_area
2976     case TARGET_NR_set_thread_area:
2977     case TARGET_NR_get_thread_area:
2978         goto unimplemented_nowarn;
2979 #endif
2980     default:
2981     unimplemented:
2982         gemu_log("qemu: Unsupported syscall: %d\n", num);
2983     unimplemented_nowarn:
2984         ret = -ENOSYS;
2985         break;
2986     }
2987  fail:
2988 #ifdef DEBUG
2989     gemu_log(" = %ld\n", ret);
2990 #endif
2991     return ret;
2992 }
2993