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/sysinfo.h>
  47 //#include <sys/user.h>
  48 #include <netinet/ip.h>
  49 #include <netinet/tcp.h>
  50
  51 #define termios host_termios
  52 #define winsize host_winsize
  53 #define termio host_termio
  54 #define sgttyb host_sgttyb /* same as target */
  55 #define tchars host_tchars /* same as target */
  56 #define ltchars host_ltchars /* same as target */
  57
  58 #include <linux/termios.h>
  59 #include <linux/unistd.h>
  60 #include <linux/utsname.h>
  61 #include <linux/cdrom.h>
  62 #include <linux/hdreg.h>
  63 #include <linux/soundcard.h>
  64 #include <linux/dirent.h>
  65 #include <linux/kd.h>
  66
  67 #include "qemu.h"
  68
  69 //#define DEBUG
  70
  71 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
  72 /* 16 bit uid wrappers emulation */
  73 #define USE_UID16
  74 #endif
  75
  76 //#include <linux/msdos_fs.h>
  77 #define VFAT_IOCTL_READDIR_BOTH         _IOR('r', 1, struct dirent [2])
  78 #define VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
  79
  80
  81 #if defined(__powerpc__)
  82 #undef __syscall_nr
  83 #undef __sc_loadargs_0
  84 #undef __sc_loadargs_1
  85 #undef __sc_loadargs_2
  86 #undef __sc_loadargs_3
  87 #undef __sc_loadargs_4
  88 #undef __sc_loadargs_5
  89 #undef __sc_asm_input_0
  90 #undef __sc_asm_input_1
  91 #undef __sc_asm_input_2
  92 #undef __sc_asm_input_3
  93 #undef __sc_asm_input_4
  94 #undef __sc_asm_input_5
  95 #undef _syscall0
  96 #undef _syscall1
  97 #undef _syscall2
  98 #undef _syscall3
  99 #undef _syscall4
 100 #undef _syscall5
 101
 102 /* need to redefine syscalls as Linux kernel defines are incorrect for
 103    the clobber list */
 104 /* On powerpc a system call basically clobbers the same registers like a
 105  * function call, with the exception of LR (which is needed for the
 106  * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
 107  * an error return status).
 108  */
 109
 110 #define __syscall_nr(nr, type, name, args...)                           \
 111         unsigned long __sc_ret, __sc_err;                               \
 112         {                                                               \
 113                 register unsigned long __sc_0  __asm__ ("r0");          \
 114                 register unsigned long __sc_3  __asm__ ("r3");          \
 115                 register unsigned long __sc_4  __asm__ ("r4");          \
 116                 register unsigned long __sc_5  __asm__ ("r5");          \
 117                 register unsigned long __sc_6  __asm__ ("r6");          \
 118                 register unsigned long __sc_7  __asm__ ("r7");          \
 119                                                                         \
 120                 __sc_loadargs_##nr(name, args);                         \
 121                 __asm__ __volatile__                                    \
 122                         ("sc           \n\t"                            \
 123                          "mfcr %0      "                                \
 124                         : "=&r" (__sc_0),                               \
 125                           "=&r" (__sc_3),  "=&r" (__sc_4),              \
 126                           "=&r" (__sc_5),  "=&r" (__sc_6),              \
 127                           "=&r" (__sc_7)                                \
 128                         : __sc_asm_input_##nr                           \
 129                         : "cr0", "ctr", "memory",                       \
 130                           "r8", "r9", "r10","r11", "r12");              \
 131                 __sc_ret = __sc_3;                                      \
 132                 __sc_err = __sc_0;                                      \
 133         }                                                               \
 134         if (__sc_err & 0x10000000)                                      \
 135         {                                                               \
 136                 errno = __sc_ret;                                       \
 137                 __sc_ret = -1;                                          \
 138         }                                                               \
 139         return (type) __sc_ret
 140
 141 #define __sc_loadargs_0(name, dummy...)                                 \
 142         __sc_0 = __NR_##name
 143 #define __sc_loadargs_1(name, arg1)                                     \
 144         __sc_loadargs_0(name);                                          \
 145         __sc_3 = (unsigned long) (arg1)
 146 #define __sc_loadargs_2(name, arg1, arg2)                               \
 147         __sc_loadargs_1(name, arg1);                                    \
 148         __sc_4 = (unsigned long) (arg2)
 149 #define __sc_loadargs_3(name, arg1, arg2, arg3)                         \
 150         __sc_loadargs_2(name, arg1, arg2);                              \
 151         __sc_5 = (unsigned long) (arg3)
 152 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)                   \
 153         __sc_loadargs_3(name, arg1, arg2, arg3);                        \
 154         __sc_6 = (unsigned long) (arg4)
 155 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)             \
 156         __sc_loadargs_4(name, arg1, arg2, arg3, arg4);                  \
 157         __sc_7 = (unsigned long) (arg5)
 158
 159 #define __sc_asm_input_0 "0" (__sc_0)
 160 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
 161 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
 162 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
 163 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
 164 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
 165
 166 #define _syscall0(type,name)                                            \
 167 type name(void)                                                         \
 168 {                                                                       \
 169         __syscall_nr(0, type, name);                                    \
 170 }
 171
 172 #define _syscall1(type,name,type1,arg1)                                 \
 173 type name(type1 arg1)                                                   \
 174 {                                                                       \
 175         __syscall_nr(1, type, name, arg1);                              \
 176 }
 177
 178 #define _syscall2(type,name,type1,arg1,type2,arg2)                      \
 179 type name(type1 arg1, type2 arg2)                                       \
 180 {                                                                       \
 181         __syscall_nr(2, type, name, arg1, arg2);                        \
 182 }
 183
 184 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)           \
 185 type name(type1 arg1, type2 arg2, type3 arg3)                           \
 186 {                                                                       \
 187         __syscall_nr(3, type, name, arg1, arg2, arg3);                  \
 188 }
 189
 190 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
 191 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)               \
 192 {                                                                       \
 193         __syscall_nr(4, type, name, arg1, arg2, arg3, arg4);            \
 194 }
 195
 196 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
 197 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)   \
 198 {                                                                       \
 199         __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5);      \
 200 }
 201 #endif
 202
 203 #define __NR_sys_uname __NR_uname
 204 #define __NR_sys_getcwd1 __NR_getcwd
 205 #define __NR_sys_statfs __NR_statfs
 206 #define __NR_sys_fstatfs __NR_fstatfs
 207 #define __NR_sys_getdents __NR_getdents
 208 #define __NR_sys_getdents64 __NR_getdents64
 209 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
 210
 211 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
 212 #define __NR__llseek __NR_lseek
 213 #endif
 214
 215 #ifdef __NR_gettid
 216 _syscall0(int, gettid)
 217 #else
 218 static int gettid(void) {
 219     return -ENOSYS;
 220 }
 221 #endif
 222 _syscall1(int,sys_uname,struct new_utsname *,buf)
 223 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
 224 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
 225 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
 226 _syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
 227           loff_t *, res, uint, wh);
 228 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
 229 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
 230 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
 231 #ifdef __NR_exit_group
 232 _syscall1(int,exit_group,int,error_code)
 233 #endif
 234
 235 extern int personality(int);
 236 extern int flock(int, int);
 237 extern int setfsuid(int);
 238 extern int setfsgid(int);
 239 extern int setresuid(uid_t, uid_t, uid_t);
 240 extern int getresuid(uid_t *, uid_t *, uid_t *);
 241 extern int setresgid(gid_t, gid_t, gid_t);
 242 extern int getresgid(gid_t *, gid_t *, gid_t *);
 243 extern int setgroups(int, gid_t *);
 244
 245 static inline long get_errno(long ret)
 246 {
 247     if (ret == -1)
 248         return -errno;
 249     else
 250         return ret;
 251 }
 252
 253 static inline int is_error(long ret)
 254 {
 255     return (unsigned long)ret >= (unsigned long)(-4096);
 256 }
 257
 258 static char *target_brk;
 259 static char *target_original_brk;
 260
 261 void target_set_brk(char *new_brk)
 262 {
 263     target_brk = new_brk;
 264     target_original_brk = new_brk;
 265 }
 266
 267 static long do_brk(char *new_brk)
 268 {
 269     char *brk_page;
 270     long mapped_addr;
 271     int new_alloc_size;
 272
 273     if (!new_brk)
 274         return (long)target_brk;
 275     if (new_brk < target_original_brk)
 276         return -ENOMEM;
 277
 278     brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk);
 279
 280     /* If the new brk is less than this, set it and we're done... */
 281     if (new_brk < brk_page) {
 282         target_brk = new_brk;
 283         return (long)target_brk;
 284     }
 285
 286     /* We need to allocate more memory after the brk... */
 287     new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
 288     mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size,
 289                                         PROT_READ|PROT_WRITE,
 290                                         MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
 291     if (is_error(mapped_addr)) {
 292         return mapped_addr;
 293     } else {
 294         target_brk = new_brk;
 295         return (long)target_brk;
 296     }
 297 }
 298
 299 static inline fd_set *target_to_host_fds(fd_set *fds,
 300                                          target_long *target_fds, int n)
 301 {
 302 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
 303     return (fd_set *)target_fds;
 304 #else
 305     int i, b;
 306     if (target_fds) {
 307         FD_ZERO(fds);
 308         for(i = 0;i < n; i++) {
 309             b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
 310                  (i & (TARGET_LONG_BITS - 1))) & 1;
 311             if (b)
 312                 FD_SET(i, fds);
 313         }
 314         return fds;
 315     } else {
 316         return NULL;
 317     }
 318 #endif
 319 }
 320
 321 static inline void host_to_target_fds(target_long *target_fds,
 322                                       fd_set *fds, int n)
 323 {
 324 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN)
 325     /* nothing to do */
 326 #else
 327     int i, nw, j, k;
 328     target_long v;
 329
 330     if (target_fds) {
 331         nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS;
 332         k = 0;
 333         for(i = 0;i < nw; i++) {
 334             v = 0;
 335             for(j = 0; j < TARGET_LONG_BITS; j++) {
 336                 v |= ((FD_ISSET(k, fds) != 0) << j);
 337                 k++;
 338             }
 339             target_fds[i] = tswapl(v);
 340         }
 341     }
 342 #endif
 343 }
 344
 345 #if defined(__alpha__)
 346 #define HOST_HZ 1024
 347 #else
 348 #define HOST_HZ 100
 349 #endif
 350
 351 static inline long host_to_target_clock_t(long ticks)
 352 {
 353 #if HOST_HZ == TARGET_HZ
 354     return ticks;
 355 #else
 356     return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
 357 #endif
 358 }
 359
 360 static inline void host_to_target_rusage(struct target_rusage *target_rusage,
 361                                          const struct rusage *rusage)
 362 {
 363     target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
 364     target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
 365     target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
 366     target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
 367     target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
 368     target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
 369     target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
 370     target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
 371     target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
 372     target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
 373     target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
 374     target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
 375     target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
 376     target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
 377     target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
 378     target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
 379     target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
 380     target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
 381 }
 382
 383 static inline void target_to_host_timeval(struct timeval *tv,
 384                                           const struct target_timeval *target_tv)
 385 {
 386     tv->tv_sec = tswapl(target_tv->tv_sec);
 387     tv->tv_usec = tswapl(target_tv->tv_usec);
 388 }
 389
 390 static inline void host_to_target_timeval(struct target_timeval *target_tv,
 391                                           const struct timeval *tv)
 392 {
 393     target_tv->tv_sec = tswapl(tv->tv_sec);
 394     target_tv->tv_usec = tswapl(tv->tv_usec);
 395 }
 396
 397
 398 static long do_select(long n,
 399                       target_long *target_rfds, target_long *target_wfds,
 400                       target_long *target_efds, struct target_timeval *target_tv)
 401 {
 402     fd_set rfds, wfds, efds;
 403     fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
 404     struct timeval tv, *tv_ptr;
 405     long ret;
 406
 407     rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
 408     wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
 409     efds_ptr = target_to_host_fds(&efds, target_efds, n);
 410
 411     if (target_tv) {
 412         target_to_host_timeval(&tv, target_tv);
 413         tv_ptr = &tv;
 414     } else {
 415         tv_ptr = NULL;
 416     }
 417     ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
 418     if (!is_error(ret)) {
 419         host_to_target_fds(target_rfds, rfds_ptr, n);
 420         host_to_target_fds(target_wfds, wfds_ptr, n);
 421         host_to_target_fds(target_efds, efds_ptr, n);
 422
 423         if (target_tv) {
 424             host_to_target_timeval(target_tv, &tv);
 425         }
 426     }
 427     return ret;
 428 }
 429
 430 static inline void target_to_host_sockaddr(struct sockaddr *addr,
 431                                            struct target_sockaddr *target_addr,
 432                                            socklen_t len)
 433 {
 434     memcpy(addr, target_addr, len);
 435     addr->sa_family = tswap16(target_addr->sa_family);
 436 }
 437
 438 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr,
 439                                            struct sockaddr *addr,
 440                                            socklen_t len)
 441 {
 442     memcpy(target_addr, addr, len);
 443     target_addr->sa_family = tswap16(addr->sa_family);
 444 }
 445
 446 static inline void target_to_host_cmsg(struct msghdr *msgh,
 447                                        struct target_msghdr *target_msgh)
 448 {
 449     struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
 450     struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
 451     socklen_t space = 0;
 452
 453     while (cmsg && target_cmsg) {
 454         void *data = CMSG_DATA(cmsg);
 455         void *target_data = TARGET_CMSG_DATA(target_cmsg);
 456
 457         int len = tswapl(target_cmsg->cmsg_len)
 458                   - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
 459
 460         space += CMSG_SPACE(len);
 461         if (space > msgh->msg_controllen) {
 462             space -= CMSG_SPACE(len);
 463             gemu_log("Host cmsg overflow");
 464             break;
 465         }
 466
 467         cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
 468         cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
 469         cmsg->cmsg_len = CMSG_LEN(len);
 470
 471         if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
 472             gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
 473             memcpy(data, target_data, len);
 474         } else {
 475             int *fd = (int *)data;
 476             int *target_fd = (int *)target_data;
 477             int i, numfds = len / sizeof(int);
 478
 479             for (i = 0; i < numfds; i++)
 480                 fd[i] = tswap32(target_fd[i]);
 481         }
 482
 483         cmsg = CMSG_NXTHDR(msgh, cmsg);
 484         target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
 485     }
 486
 487     msgh->msg_controllen = space;
 488 }
 489
 490 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh,
 491                                        struct msghdr *msgh)
 492 {
 493     struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
 494     struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh);
 495     socklen_t space = 0;
 496
 497     while (cmsg && target_cmsg) {
 498         void *data = CMSG_DATA(cmsg);
 499         void *target_data = TARGET_CMSG_DATA(target_cmsg);
 500
 501         int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
 502
 503         space += TARGET_CMSG_SPACE(len);
 504         if (space > tswapl(target_msgh->msg_controllen)) {
 505             space -= TARGET_CMSG_SPACE(len);
 506             gemu_log("Target cmsg overflow");
 507             break;
 508         }
 509
 510         target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
 511         target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
 512         target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
 513
 514         if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
 515             gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
 516             memcpy(target_data, data, len);
 517         } else {
 518             int *fd = (int *)data;
 519             int *target_fd = (int *)target_data;
 520             int i, numfds = len / sizeof(int);
 521
 522             for (i = 0; i < numfds; i++)
 523                 target_fd[i] = tswap32(fd[i]);
 524         }
 525
 526         cmsg = CMSG_NXTHDR(msgh, cmsg);
 527         target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
 528     }
 529
 530     msgh->msg_controllen = tswapl(space);
 531 }
 532
 533 static long do_setsockopt(int sockfd, int level, int optname,
 534                           void *optval, socklen_t optlen)
 535 {
 536     int val, ret;
 537
 538     switch(level) {
 539     case SOL_TCP:
 540         /* TCP options all take an 'int' value.  */
 541         if (optlen < sizeof(uint32_t))
 542             return -EINVAL;
 543
 544         if (get_user(val, (uint32_t *)optval))
 545             return -EFAULT;
 546         ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 547         break;
 548     case SOL_IP:
 549         switch(optname) {
 550         case IP_HDRINCL:
 551             val = 0;
 552             if (optlen >= sizeof(uint32_t)) {
 553                 if (get_user(val, (uint32_t *)optval))
 554                     return -EFAULT;
 555             } else if (optlen >= 1) {
 556                 if (get_user(val, (uint8_t *)optval))
 557                     return -EFAULT;
 558             }
 559             ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 560             break;
 561         default:
 562             goto unimplemented;
 563         }
 564         break;
 565     case SOL_SOCKET:
 566         switch (optname) {
 567             /* Options with 'int' argument.  */
 568         case SO_DEBUG:
 569         case SO_REUSEADDR:
 570         case SO_TYPE:
 571         case SO_ERROR:
 572         case SO_DONTROUTE:
 573         case SO_BROADCAST:
 574         case SO_SNDBUF:
 575         case SO_RCVBUF:
 576         case SO_KEEPALIVE:
 577         case SO_OOBINLINE:
 578         case SO_NO_CHECK:
 579         case SO_PRIORITY:
 580         case SO_BSDCOMPAT:
 581         case SO_PASSCRED:
 582         case SO_TIMESTAMP:
 583         case SO_RCVLOWAT:
 584         case SO_RCVTIMEO:
 585         case SO_SNDTIMEO:
 586             if (optlen < sizeof(uint32_t))
 587                 return -EINVAL;
 588             if (get_user(val, (uint32_t *)optval))
 589                 return -EFAULT;
 590             ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 591             break;
 592         default:
 593             goto unimplemented;
 594         }
 595         break;
 596     default:
 597     unimplemented:
 598         gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
 599         ret = -ENOSYS;
 600     }
 601     return ret;
 602 }
 603
 604 static long do_getsockopt(int sockfd, int level, int optname,
 605                           void *optval, socklen_t *optlen)
 606 {
 607     int len, lv, val, ret;
 608
 609     switch(level) {
 610     case SOL_SOCKET:
 611         switch (optname) {
 612         case SO_LINGER:
 613         case SO_RCVTIMEO:
 614         case SO_SNDTIMEO:
 615         case SO_PEERCRED:
 616         case SO_PEERNAME:
 617             /* These don't just return a single integer */
 618             goto unimplemented;
 619         default:
 620             if (get_user(len, optlen))
 621                 return -EFAULT;
 622             if (len < 0)
 623                 return -EINVAL;
 624             lv = sizeof(int);
 625             ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
 626             if (ret < 0)
 627                 return ret;
 628             val = tswap32(val);
 629             if (len > lv)
 630                 len = lv;
 631             if (copy_to_user(optval, &val, len))
 632                 return -EFAULT;
 633             if (put_user(len, optlen))
 634                 return -EFAULT;
 635             break;
 636         }
 637         break;
 638     default:
 639     unimplemented:
 640         gemu_log("getsockopt level=%d optname=%d not yet supported\n",
 641                  level, optname);
 642         ret = -ENOSYS;
 643         break;
 644     }
 645     return ret;
 646 }
 647
 648 static long do_socketcall(int num, int32_t *vptr)
 649 {
 650     long ret;
 651
 652     switch(num) {
 653     case SOCKOP_socket:
 654         {
 655             int domain = tswap32(vptr[0]);
 656             int type = tswap32(vptr[1]);
 657             int protocol = tswap32(vptr[2]);
 658
 659             ret = get_errno(socket(domain, type, protocol));
 660         }
 661         break;
 662     case SOCKOP_bind:
 663         {
 664             int sockfd = tswap32(vptr[0]);
 665             void *target_addr = (void *)tswap32(vptr[1]);
 666             socklen_t addrlen = tswap32(vptr[2]);
 667             void *addr = alloca(addrlen);
 668
 669             target_to_host_sockaddr(addr, target_addr, addrlen);
 670             ret = get_errno(bind(sockfd, addr, addrlen));
 671         }
 672         break;
 673     case SOCKOP_connect:
 674         {
 675             int sockfd = tswap32(vptr[0]);
 676             void *target_addr = (void *)tswap32(vptr[1]);
 677             socklen_t addrlen = tswap32(vptr[2]);
 678             void *addr = alloca(addrlen);
 679
 680             target_to_host_sockaddr(addr, target_addr, addrlen);
 681             ret = get_errno(connect(sockfd, addr, addrlen));
 682         }
 683         break;
 684     case SOCKOP_listen:
 685         {
 686             int sockfd = tswap32(vptr[0]);
 687             int backlog = tswap32(vptr[1]);
 688
 689             ret = get_errno(listen(sockfd, backlog));
 690         }
 691         break;
 692     case SOCKOP_accept:
 693         {
 694             int sockfd = tswap32(vptr[0]);
 695             void *target_addr = (void *)tswap32(vptr[1]);
 696             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 697             socklen_t addrlen = tswap32(*target_addrlen);
 698             void *addr = alloca(addrlen);
 699
 700             ret = get_errno(accept(sockfd, addr, &addrlen));
 701             if (!is_error(ret)) {
 702                 host_to_target_sockaddr(target_addr, addr, addrlen);
 703                 *target_addrlen = tswap32(addrlen);
 704             }
 705         }
 706         break;
 707     case SOCKOP_getsockname:
 708         {
 709             int sockfd = tswap32(vptr[0]);
 710             void *target_addr = (void *)tswap32(vptr[1]);
 711             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 712             socklen_t addrlen = tswap32(*target_addrlen);
 713             void *addr = alloca(addrlen);
 714
 715             ret = get_errno(getsockname(sockfd, addr, &addrlen));
 716             if (!is_error(ret)) {
 717                 host_to_target_sockaddr(target_addr, addr, addrlen);
 718                 *target_addrlen = tswap32(addrlen);
 719             }
 720         }
 721         break;
 722     case SOCKOP_getpeername:
 723         {
 724             int sockfd = tswap32(vptr[0]);
 725             void *target_addr = (void *)tswap32(vptr[1]);
 726             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 727             socklen_t addrlen = tswap32(*target_addrlen);
 728             void *addr = alloca(addrlen);
 729
 730             ret = get_errno(getpeername(sockfd, addr, &addrlen));
 731             if (!is_error(ret)) {
 732                 host_to_target_sockaddr(target_addr, addr, addrlen);
 733                 *target_addrlen = tswap32(addrlen);
 734             }
 735         }
 736         break;
 737     case SOCKOP_socketpair:
 738         {
 739             int domain = tswap32(vptr[0]);
 740             int type = tswap32(vptr[1]);
 741             int protocol = tswap32(vptr[2]);
 742             int32_t *target_tab = (void *)tswap32(vptr[3]);
 743             int tab[2];
 744
 745             ret = get_errno(socketpair(domain, type, protocol, tab));
 746             if (!is_error(ret)) {
 747                 target_tab[0] = tswap32(tab[0]);
 748                 target_tab[1] = tswap32(tab[1]);
 749             }
 750         }
 751         break;
 752     case SOCKOP_send:
 753         {
 754             int sockfd = tswap32(vptr[0]);
 755             void *msg = (void *)tswap32(vptr[1]);
 756             size_t len = tswap32(vptr[2]);
 757             int flags = tswap32(vptr[3]);
 758
 759             ret = get_errno(send(sockfd, msg, len, flags));
 760         }
 761         break;
 762     case SOCKOP_recv:
 763         {
 764             int sockfd = tswap32(vptr[0]);
 765             void *msg = (void *)tswap32(vptr[1]);
 766             size_t len = tswap32(vptr[2]);
 767             int flags = tswap32(vptr[3]);
 768
 769             ret = get_errno(recv(sockfd, msg, len, flags));
 770         }
 771         break;
 772     case SOCKOP_sendto:
 773         {
 774             int sockfd = tswap32(vptr[0]);
 775             void *msg = (void *)tswap32(vptr[1]);
 776             size_t len = tswap32(vptr[2]);
 777             int flags = tswap32(vptr[3]);
 778             void *target_addr = (void *)tswap32(vptr[4]);
 779             socklen_t addrlen = tswap32(vptr[5]);
 780             void *addr = alloca(addrlen);
 781
 782             target_to_host_sockaddr(addr, target_addr, addrlen);
 783             ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
 784         }
 785         break;
 786     case SOCKOP_recvfrom:
 787         {
 788             int sockfd = tswap32(vptr[0]);
 789             void *msg = (void *)tswap32(vptr[1]);
 790             size_t len = tswap32(vptr[2]);
 791             int flags = tswap32(vptr[3]);
 792             void *target_addr = (void *)tswap32(vptr[4]);
 793             uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
 794             socklen_t addrlen = tswap32(*target_addrlen);
 795             void *addr = alloca(addrlen);
 796
 797             ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
 798             if (!is_error(ret)) {
 799                 host_to_target_sockaddr(target_addr, addr, addrlen);
 800                 *target_addrlen = tswap32(addrlen);
 801             }
 802         }
 803         break;
 804     case SOCKOP_shutdown:
 805         {
 806             int sockfd = tswap32(vptr[0]);
 807             int how = tswap32(vptr[1]);
 808
 809             ret = get_errno(shutdown(sockfd, how));
 810         }
 811         break;
 812     case SOCKOP_sendmsg:
 813     case SOCKOP_recvmsg:
 814         {
 815             int fd;
 816             struct target_msghdr *msgp;
 817             struct msghdr msg;
 818             int flags, count, i;
 819             struct iovec *vec;
 820             struct target_iovec *target_vec;
 821
 822             msgp = (void *)tswap32(vptr[1]);
 823             msg.msg_name = (void *)tswapl(msgp->msg_name);
 824             msg.msg_namelen = tswapl(msgp->msg_namelen);
 825             msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
 826             msg.msg_control = alloca(msg.msg_controllen);
 827             msg.msg_flags = tswap32(msgp->msg_flags);
 828
 829             count = tswapl(msgp->msg_iovlen);
 830             vec = alloca(count * sizeof(struct iovec));
 831             target_vec = (void *)tswapl(msgp->msg_iov);
 832             for(i = 0;i < count; i++) {
 833                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
 834                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
 835             }
 836             msg.msg_iovlen = count;
 837             msg.msg_iov = vec;
 838
 839             fd = tswap32(vptr[0]);
 840             flags = tswap32(vptr[2]);
 841             if (num == SOCKOP_sendmsg) {
 842                 target_to_host_cmsg(&msg, msgp);
 843                 ret = get_errno(sendmsg(fd, &msg, flags));
 844             } else {
 845                 ret = get_errno(recvmsg(fd, &msg, flags));
 846                 if (!is_error(ret))
 847                   host_to_target_cmsg(msgp, &msg);
 848             }
 849         }
 850         break;
 851     case SOCKOP_setsockopt:
 852         {
 853             int sockfd = tswap32(vptr[0]);
 854             int level = tswap32(vptr[1]);
 855             int optname = tswap32(vptr[2]);
 856             void *optval = (void *)tswap32(vptr[3]);
 857             socklen_t optlen = tswap32(vptr[4]);
 858
 859             ret = do_setsockopt(sockfd, level, optname, optval, optlen);
 860         }
 861         break;
 862     case SOCKOP_getsockopt:
 863         {
 864             int sockfd = tswap32(vptr[0]);
 865             int level = tswap32(vptr[1]);
 866             int optname = tswap32(vptr[2]);
 867             void *optval = (void *)tswap32(vptr[3]);
 868             uint32_t *poptlen = (void *)tswap32(vptr[4]);
 869
 870             ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
 871         }
 872         break;
 873     default:
 874         gemu_log("Unsupported socketcall: %d\n", num);
 875         ret = -ENOSYS;
 876         break;
 877     }
 878     return ret;
 879 }
 880
 881
 882 #define N_SHM_REGIONS   32
 883
 884 static struct shm_region {
 885     uint32_t    start;
 886     uint32_t    size;
 887 } shm_regions[N_SHM_REGIONS];
 888
 889 static long do_ipc(long call, long first, long second, long third,
 890                    long ptr, long fifth)
 891 {
 892     int version;
 893     long ret = 0;
 894     unsigned long raddr;
 895     struct shmid_ds shm_info;
 896     int i;
 897
 898     version = call >> 16;
 899     call &= 0xffff;
 900
 901     switch (call) {
 902     case IPCOP_shmat:
 903         /* SHM_* flags are the same on all linux platforms */
 904         ret = get_errno((long) shmat(first, (void *) ptr, second));
 905         if (is_error(ret))
 906             break;
 907         raddr = ret;
 908         /* find out the length of the shared memory segment */
 909
 910         ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
 911         if (is_error(ret)) {
 912             /* can't get length, bail out */
 913             shmdt((void *) raddr);
 914             break;
 915         }
 916         page_set_flags(raddr, raddr + shm_info.shm_segsz,
 917                        PAGE_VALID | PAGE_READ |
 918                        ((second & SHM_RDONLY)? 0: PAGE_WRITE));
 919         for (i = 0; i < N_SHM_REGIONS; ++i) {
 920             if (shm_regions[i].start == 0) {
 921                 shm_regions[i].start = raddr;
 922                 shm_regions[i].size = shm_info.shm_segsz;
 923                 break;
 924             }
 925         }
 926         if (put_user(raddr, (uint32_t *)third))
 927             return -EFAULT;
 928         ret = 0;
 929         break;
 930     case IPCOP_shmdt:
 931         for (i = 0; i < N_SHM_REGIONS; ++i) {
 932             if (shm_regions[i].start == ptr) {
 933                 shm_regions[i].start = 0;
 934                 page_set_flags(ptr, shm_regions[i].size, 0);
 935                 break;
 936             }
 937         }
 938         ret = get_errno(shmdt((void *) ptr));
 939         break;
 940
 941     case IPCOP_shmget:
 942         /* IPC_* flag values are the same on all linux platforms */
 943         ret = get_errno(shmget(first, second, third));
 944         break;
 945
 946         /* IPC_* and SHM_* command values are the same on all linux platforms */
 947     case IPCOP_shmctl:
 948         switch(second) {
 949         case IPC_RMID:
 950         case SHM_LOCK:
 951         case SHM_UNLOCK:
 952             ret = get_errno(shmctl(first, second, NULL));
 953             break;
 954         default:
 955             goto unimplemented;
 956         }
 957         break;
 958     default:
 959     unimplemented:
 960         gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
 961         ret = -ENOSYS;
 962         break;
 963     }
 964     return ret;
 965 }
 966
 967 /* kernel structure types definitions */
 968 #define IFNAMSIZ        16
 969
 970 #define STRUCT(name, list...) STRUCT_ ## name,
 971 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
 972 enum {
 973 #include "syscall_types.h"
 974 };
 975 #undef STRUCT
 976 #undef STRUCT_SPECIAL
 977
 978 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
 979 #define STRUCT_SPECIAL(name)
 980 #include "syscall_types.h"
 981 #undef STRUCT
 982 #undef STRUCT_SPECIAL
 983
 984 typedef struct IOCTLEntry {
 985     unsigned int target_cmd;
 986     unsigned int host_cmd;
 987     const char *name;
 988     int access;
 989     const argtype arg_type[5];
 990 } IOCTLEntry;
 991
 992 #define IOC_R 0x0001
 993 #define IOC_W 0x0002
 994 #define IOC_RW (IOC_R | IOC_W)
 995
 996 #define MAX_STRUCT_SIZE 4096
 997
 998 IOCTLEntry ioctl_entries[] = {
 999 #define IOCTL(cmd, access, types...) \
1000     { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1001 #include "ioctls.h"
1002     { 0, 0, },
1003 };
1004
1005 static long do_ioctl(long fd, long cmd, long arg)
1006 {
1007     const IOCTLEntry *ie;
1008     const argtype *arg_type;
1009     long ret;
1010     uint8_t buf_temp[MAX_STRUCT_SIZE];
1011
1012     ie = ioctl_entries;
1013     for(;;) {
1014         if (ie->target_cmd == 0) {
1015             gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1016             return -ENOSYS;
1017         }
1018         if (ie->target_cmd == cmd)
1019             break;
1020         ie++;
1021     }
1022     arg_type = ie->arg_type;
1023 #if defined(DEBUG)
1024     gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1025 #endif
1026     switch(arg_type[0]) {
1027     case TYPE_NULL:
1028         /* no argument */
1029         ret = get_errno(ioctl(fd, ie->host_cmd));
1030         break;
1031     case TYPE_PTRVOID:
1032     case TYPE_INT:
1033         /* int argment */
1034         ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1035         break;
1036     case TYPE_PTR:
1037         arg_type++;
1038         switch(ie->access) {
1039         case IOC_R:
1040             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1041             if (!is_error(ret)) {
1042                 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1043             }
1044             break;
1045         case IOC_W:
1046             thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1047             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1048             break;
1049         default:
1050         case IOC_RW:
1051             thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1052             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1053             if (!is_error(ret)) {
1054                 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1055             }
1056             break;
1057         }
1058         break;
1059     default:
1060         gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1061         ret = -ENOSYS;
1062         break;
1063     }
1064     return ret;
1065 }
1066
1067 bitmask_transtbl iflag_tbl[] = {
1068         { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1069         { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1070         { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1071         { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1072         { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1073         { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1074         { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1075         { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1076         { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1077         { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1078         { TARGET_IXON, TARGET_IXON, IXON, IXON },
1079         { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1080         { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1081         { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1082         { 0, 0, 0, 0 }
1083 };
1084
1085 bitmask_transtbl oflag_tbl[] = {
1086         { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1087         { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1088         { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1089         { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1090         { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1091         { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1092         { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1093         { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1094         { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1095         { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1096         { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1097         { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1098         { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1099         { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1100         { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1101         { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1102         { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1103         { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1104         { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1105         { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1106         { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1107         { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1108         { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1109         { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1110         { 0, 0, 0, 0 }
1111 };
1112
1113 bitmask_transtbl cflag_tbl[] = {
1114         { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1115         { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1116         { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1117         { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1118         { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1119         { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1120         { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1121         { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1122         { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1123         { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1124         { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1125         { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1126         { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1127         { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1128         { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1129         { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1130         { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1131         { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1132         { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1133         { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1134         { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1135         { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1136         { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1137         { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1138         { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1139         { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1140         { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1141         { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1142         { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1143         { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1144         { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1145         { 0, 0, 0, 0 }
1146 };
1147
1148 bitmask_transtbl lflag_tbl[] = {
1149         { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1150         { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1151         { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1152         { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1153         { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1154         { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1155         { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1156         { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1157         { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1158         { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1159         { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1160         { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1161         { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1162         { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1163         { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1164         { 0, 0, 0, 0 }
1165 };
1166
1167 static void target_to_host_termios (void *dst, const void *src)
1168 {
1169     struct host_termios *host = dst;
1170     const struct target_termios *target = src;
1171
1172     host->c_iflag =
1173         target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1174     host->c_oflag =
1175         target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1176     host->c_cflag =
1177         target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1178     host->c_lflag =
1179         target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1180     host->c_line = target->c_line;
1181
1182     host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1183     host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1184     host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1185     host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1186     host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1187     host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1188     host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1189     host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1190     host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1191     host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1192     host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1193     host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1194     host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1195     host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1196     host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1197     host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1198     host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1199 }
1200
1201 static void host_to_target_termios (void *dst, const void *src)
1202 {
1203     struct target_termios *target = dst;
1204     const struct host_termios *host = src;
1205
1206     target->c_iflag =
1207         tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1208     target->c_oflag =
1209         tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1210     target->c_cflag =
1211         tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1212     target->c_lflag =
1213         tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1214     target->c_line = host->c_line;
1215
1216     target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1217     target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1218     target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1219     target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1220     target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1221     target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1222     target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1223     target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1224     target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1225     target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1226     target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1227     target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1228     target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1229     target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1230     target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1231     target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1232     target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1233 }
1234
1235 StructEntry struct_termios_def = {
1236     .convert = { host_to_target_termios, target_to_host_termios },
1237     .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1238     .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1239 };
1240
1241 static bitmask_transtbl mmap_flags_tbl[] = {
1242         { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1243         { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1244         { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1245         { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1246         { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1247         { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1248         { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1249         { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1250         { 0, 0, 0, 0 }
1251 };
1252
1253 static bitmask_transtbl fcntl_flags_tbl[] = {
1254         { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1255         { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1256         { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1257         { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1258         { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1259         { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1260         { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1261         { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1262         { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1263         { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1264         { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1265         { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1266         { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1267 #if defined(O_DIRECT)
1268         { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1269 #endif
1270         { 0, 0, 0, 0 }
1271 };
1272
1273 #if defined(TARGET_I386)
1274
1275 /* NOTE: there is really one LDT for all the threads */
1276 uint8_t *ldt_table;
1277
1278 static int read_ldt(void *ptr, unsigned long bytecount)
1279 {
1280     int size;
1281
1282     if (!ldt_table)
1283         return 0;
1284     size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1285     if (size > bytecount)
1286         size = bytecount;
1287     memcpy(ptr, ldt_table, size);
1288     return size;
1289 }
1290
1291 /* XXX: add locking support */
1292 static int write_ldt(CPUX86State *env,
1293                      void *ptr, unsigned long bytecount, int oldmode)
1294 {
1295     struct target_modify_ldt_ldt_s ldt_info;
1296     int seg_32bit, contents, read_exec_only, limit_in_pages;
1297     int seg_not_present, useable;
1298     uint32_t *lp, entry_1, entry_2;
1299
1300     if (bytecount != sizeof(ldt_info))
1301         return -EINVAL;
1302     memcpy(&ldt_info, ptr, sizeof(ldt_info));
1303     tswap32s(&ldt_info.entry_number);
1304     tswapls((long *)&ldt_info.base_addr);
1305     tswap32s(&ldt_info.limit);
1306     tswap32s(&ldt_info.flags);
1307
1308     if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1309         return -EINVAL;
1310     seg_32bit = ldt_info.flags & 1;
1311     contents = (ldt_info.flags >> 1) & 3;
1312     read_exec_only = (ldt_info.flags >> 3) & 1;
1313     limit_in_pages = (ldt_info.flags >> 4) & 1;
1314     seg_not_present = (ldt_info.flags >> 5) & 1;
1315     useable = (ldt_info.flags >> 6) & 1;
1316
1317     if (contents == 3) {
1318         if (oldmode)
1319             return -EINVAL;
1320         if (seg_not_present == 0)
1321             return -EINVAL;
1322     }
1323     /* allocate the LDT */
1324     if (!ldt_table) {
1325         ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1326         if (!ldt_table)
1327             return -ENOMEM;
1328         memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1329         env->ldt.base = ldt_table;
1330         env->ldt.limit = 0xffff;
1331     }
1332
1333     /* NOTE: same code as Linux kernel */
1334     /* Allow LDTs to be cleared by the user. */
1335     if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1336         if (oldmode ||
1337             (contents == 0              &&
1338              read_exec_only == 1        &&
1339              seg_32bit == 0             &&
1340              limit_in_pages == 0        &&
1341              seg_not_present == 1       &&
1342              useable == 0 )) {
1343             entry_1 = 0;
1344             entry_2 = 0;
1345             goto install;
1346         }
1347     }
1348
1349     entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1350         (ldt_info.limit & 0x0ffff);
1351     entry_2 = (ldt_info.base_addr & 0xff000000) |
1352         ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1353         (ldt_info.limit & 0xf0000) |
1354         ((read_exec_only ^ 1) << 9) |
1355         (contents << 10) |
1356         ((seg_not_present ^ 1) << 15) |
1357         (seg_32bit << 22) |
1358         (limit_in_pages << 23) |
1359         0x7000;
1360     if (!oldmode)
1361         entry_2 |= (useable << 20);
1362
1363     /* Install the new entry ...  */
1364 install:
1365     lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1366     lp[0] = tswap32(entry_1);
1367     lp[1] = tswap32(entry_2);
1368     return 0;
1369 }
1370
1371 /* specific and weird i386 syscalls */
1372 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1373 {
1374     int ret = -ENOSYS;
1375
1376     switch (func) {
1377     case 0:
1378         ret = read_ldt(ptr, bytecount);
1379         break;
1380     case 1:
1381         ret = write_ldt(env, ptr, bytecount, 1);
1382         break;
1383     case 0x11:
1384         ret = write_ldt(env, ptr, bytecount, 0);
1385         break;
1386     }
1387     return ret;
1388 }
1389
1390 #endif /* defined(TARGET_I386) */
1391
1392 /* this stack is the equivalent of the kernel stack associated with a
1393    thread/process */
1394 #define NEW_STACK_SIZE 8192
1395
1396 static int clone_func(void *arg)
1397 {
1398     CPUState *env = arg;
1399     cpu_loop(env);
1400     /* never exits */
1401     return 0;
1402 }
1403
1404 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1405 {
1406     int ret;
1407     TaskState *ts;
1408     uint8_t *new_stack;
1409     CPUState *new_env;
1410
1411     if (flags & CLONE_VM) {
1412         ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1413         memset(ts, 0, sizeof(TaskState));
1414         new_stack = ts->stack;
1415         ts->used = 1;
1416         /* add in task state list */
1417         ts->next = first_task_state;
1418         first_task_state = ts;
1419         /* we create a new CPU instance. */
1420         new_env = cpu_init();
1421         memcpy(new_env, env, sizeof(CPUState));
1422 #if defined(TARGET_I386)
1423         if (!newsp)
1424             newsp = env->regs[R_ESP];
1425         new_env->regs[R_ESP] = newsp;
1426         new_env->regs[R_EAX] = 0;
1427 #elif defined(TARGET_ARM)
1428         if (!newsp)
1429             newsp = env->regs[13];
1430         new_env->regs[13] = newsp;
1431         new_env->regs[0] = 0;
1432 #elif defined(TARGET_SPARC)
1433         printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1434 #elif defined(TARGET_PPC)
1435         if (!newsp)
1436             newsp = env->gpr[1];
1437         new_env->gpr[1] = newsp;
1438         {
1439             int i;
1440             for (i = 7; i < 32; i++)
1441                 new_env->gpr[i] = 0;
1442         }
1443 #else
1444 #error unsupported target CPU
1445 #endif
1446         new_env->opaque = ts;
1447 #ifdef __ia64__
1448         ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1449 #else
1450         ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1451 #endif
1452     } else {
1453         /* if no CLONE_VM, we consider it is a fork */
1454         if ((flags & ~CSIGNAL) != 0)
1455             return -EINVAL;
1456         ret = fork();
1457     }
1458     return ret;
1459 }
1460
1461 static long do_fcntl(int fd, int cmd, unsigned long arg)
1462 {
1463     struct flock fl;
1464     struct target_flock *target_fl = (void *)arg;
1465     long ret;
1466
1467     switch(cmd) {
1468     case TARGET_F_GETLK:
1469         ret = fcntl(fd, cmd, &fl);
1470         if (ret == 0) {
1471             target_fl->l_type = tswap16(fl.l_type);
1472             target_fl->l_whence = tswap16(fl.l_whence);
1473             target_fl->l_start = tswapl(fl.l_start);
1474             target_fl->l_len = tswapl(fl.l_len);
1475             target_fl->l_pid = tswapl(fl.l_pid);
1476         }
1477         break;
1478
1479     case TARGET_F_SETLK:
1480     case TARGET_F_SETLKW:
1481         fl.l_type = tswap16(target_fl->l_type);
1482         fl.l_whence = tswap16(target_fl->l_whence);
1483         fl.l_start = tswapl(target_fl->l_start);
1484         fl.l_len = tswapl(target_fl->l_len);
1485         fl.l_pid = tswapl(target_fl->l_pid);
1486         ret = fcntl(fd, cmd, &fl);
1487         break;
1488
1489     case TARGET_F_GETLK64:
1490     case TARGET_F_SETLK64:
1491     case TARGET_F_SETLKW64:
1492         ret = -1;
1493         errno = EINVAL;
1494         break;
1495
1496     case F_GETFL:
1497         ret = fcntl(fd, cmd, arg);
1498         ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1499         break;
1500
1501     case F_SETFL:
1502         ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1503         break;
1504
1505     default:
1506         ret = fcntl(fd, cmd, arg);
1507         break;
1508     }
1509     return ret;
1510 }
1511
1512 #ifdef USE_UID16
1513
1514 static inline int high2lowuid(int uid)
1515 {
1516     if (uid > 65535)
1517         return 65534;
1518     else
1519         return uid;
1520 }
1521
1522 static inline int high2lowgid(int gid)
1523 {
1524     if (gid > 65535)
1525         return 65534;
1526     else
1527         return gid;
1528 }
1529
1530 static inline int low2highuid(int uid)
1531 {
1532     if ((int16_t)uid == -1)
1533         return -1;
1534     else
1535         return uid;
1536 }
1537
1538 static inline int low2highgid(int gid)
1539 {
1540     if ((int16_t)gid == -1)
1541         return -1;
1542     else
1543         return gid;
1544 }
1545
1546 #endif /* USE_UID16 */
1547
1548 void syscall_init(void)
1549 {
1550     IOCTLEntry *ie;
1551     const argtype *arg_type;
1552     int size;
1553
1554 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1555 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1556 #include "syscall_types.h"
1557 #undef STRUCT
1558 #undef STRUCT_SPECIAL
1559
1560     /* we patch the ioctl size if necessary. We rely on the fact that
1561        no ioctl has all the bits at '1' in the size field */
1562     ie = ioctl_entries;
1563     while (ie->target_cmd != 0) {
1564         if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1565             TARGET_IOC_SIZEMASK) {
1566             arg_type = ie->arg_type;
1567             if (arg_type[0] != TYPE_PTR) {
1568                 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1569                         ie->target_cmd);
1570                 exit(1);
1571             }
1572             arg_type++;
1573             size = thunk_type_size(arg_type, 0);
1574             ie->target_cmd = (ie->target_cmd &
1575                               ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1576                 (size << TARGET_IOC_SIZESHIFT);
1577         }
1578         /* automatic consistency check if same arch */
1579 #if defined(__i386__) && defined(TARGET_I386)
1580         if (ie->target_cmd != ie->host_cmd) {
1581             fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1582                     ie->target_cmd, ie->host_cmd);
1583         }
1584 #endif
1585         ie++;
1586     }
1587 }
1588
1589 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1590                 long arg4, long arg5, long arg6)
1591 {
1592     long ret;
1593     struct stat st;
1594     struct kernel_statfs *stfs;
1595
1596 #ifdef DEBUG
1597     gemu_log("syscall %d", num);
1598 #endif
1599     switch(num) {
1600     case TARGET_NR_exit:
1601 #ifdef HAVE_GPROF
1602         _mcleanup();
1603 #endif
1604         /* XXX: should free thread stack and CPU env */
1605         _exit(arg1);
1606         ret = 0; /* avoid warning */
1607         break;
1608     case TARGET_NR_read:
1609         page_unprotect_range((void *)arg2, arg3);
1610         ret = get_errno(read(arg1, (void *)arg2, arg3));
1611         break;
1612     case TARGET_NR_write:
1613         ret = get_errno(write(arg1, (void *)arg2, arg3));
1614         break;
1615     case TARGET_NR_open:
1616         ret = get_errno(open(path((const char *)arg1),
1617                              target_to_host_bitmask(arg2, fcntl_flags_tbl),
1618                              arg3));
1619         break;
1620     case TARGET_NR_close:
1621         ret = get_errno(close(arg1));
1622         break;
1623     case TARGET_NR_brk:
1624         ret = do_brk((char *)arg1);
1625         break;
1626     case TARGET_NR_fork:
1627         ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1628         break;
1629     case TARGET_NR_waitpid:
1630         {
1631             int *status = (int *)arg2;
1632             ret = get_errno(waitpid(arg1, status, arg3));
1633             if (!is_error(ret) && status)
1634                 tswapls((long *)&status);
1635         }
1636         break;
1637     case TARGET_NR_creat:
1638         ret = get_errno(creat((const char *)arg1, arg2));
1639         break;
1640     case TARGET_NR_link:
1641         ret = get_errno(link((const char *)arg1, (const char *)arg2));
1642         break;
1643     case TARGET_NR_unlink:
1644         ret = get_errno(unlink((const char *)arg1));
1645         break;
1646     case TARGET_NR_execve:
1647         {
1648             char **argp, **envp;
1649             int argc, envc;
1650             uint32_t *p;
1651             char **q;
1652
1653             argc = 0;
1654             for (p = (void *)arg2; *p; p++)
1655                 argc++;
1656             envc = 0;
1657             for (p = (void *)arg3; *p; p++)
1658                 envc++;
1659
1660             argp = alloca((argc + 1) * sizeof(void *));
1661             envp = alloca((envc + 1) * sizeof(void *));
1662
1663             for (p = (void *)arg2, q = argp; *p; p++, q++)
1664                 *q = (void *)tswap32(*p);
1665             *q = NULL;
1666
1667             for (p = (void *)arg3, q = envp; *p; p++, q++)
1668                 *q = (void *)tswap32(*p);
1669             *q = NULL;
1670
1671             ret = get_errno(execve((const char *)arg1, argp, envp));
1672         }
1673         break;
1674     case TARGET_NR_chdir:
1675         ret = get_errno(chdir((const char *)arg1));
1676         break;
1677     case TARGET_NR_time:
1678         {
1679             int *time_ptr = (int *)arg1;
1680             ret = get_errno(time((time_t *)time_ptr));
1681             if (!is_error(ret) && time_ptr)
1682                 tswap32s(time_ptr);
1683         }
1684         break;
1685     case TARGET_NR_mknod:
1686         ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1687         break;
1688     case TARGET_NR_chmod:
1689         ret = get_errno(chmod((const char *)arg1, arg2));
1690         break;
1691 #ifdef TARGET_NR_break
1692     case TARGET_NR_break:
1693         goto unimplemented;
1694 #endif
1695 #ifdef TARGET_NR_oldstat
1696     case TARGET_NR_oldstat:
1697         goto unimplemented;
1698 #endif
1699     case TARGET_NR_lseek:
1700         ret = get_errno(lseek(arg1, arg2, arg3));
1701         break;
1702     case TARGET_NR_getpid:
1703         ret = get_errno(getpid());
1704         break;
1705     case TARGET_NR_mount:
1706         /* need to look at the data field */
1707         goto unimplemented;
1708     case TARGET_NR_umount:
1709         ret = get_errno(umount((const char *)arg1));
1710         break;
1711     case TARGET_NR_stime:
1712         {
1713             int *time_ptr = (int *)arg1;
1714             if (time_ptr)
1715                 tswap32s(time_ptr);
1716             ret = get_errno(stime((time_t *)time_ptr));
1717         }
1718         break;
1719     case TARGET_NR_ptrace:
1720         goto unimplemented;
1721     case TARGET_NR_alarm:
1722         ret = alarm(arg1);
1723         break;
1724 #ifdef TARGET_NR_oldfstat
1725     case TARGET_NR_oldfstat:
1726         goto unimplemented;
1727 #endif
1728     case TARGET_NR_pause:
1729         ret = get_errno(pause());
1730         break;
1731     case TARGET_NR_utime:
1732         {
1733             struct utimbuf tbuf, *tbuf1;
1734             struct target_utimbuf *target_tbuf = (void *)arg2;
1735             if (target_tbuf) {
1736                 get_user(tbuf.actime, &target_tbuf->actime);
1737                 get_user(tbuf.modtime, &target_tbuf->modtime);
1738                 tbuf1 = &tbuf;
1739             } else {
1740                 tbuf1 = NULL;
1741             }
1742             ret = get_errno(utime((const char *)arg1, tbuf1));
1743         }
1744         break;
1745     case TARGET_NR_utimes:
1746         {
1747             struct target_timeval *target_tvp = (struct target_timeval *)arg2;
1748             struct timeval *tvp, tv[2];
1749             if (target_tvp) {
1750                 target_to_host_timeval(&tv[0], &target_tvp[0]);
1751                 target_to_host_timeval(&tv[1], &target_tvp[1]);
1752                 tvp = tv;
1753             } else {
1754                 tvp = NULL;
1755             }
1756             ret = get_errno(utimes((const char *)arg1, tvp));
1757         }
1758         break;
1759 #ifdef TARGET_NR_stty
1760     case TARGET_NR_stty:
1761         goto unimplemented;
1762 #endif
1763 #ifdef TARGET_NR_gtty
1764     case TARGET_NR_gtty:
1765         goto unimplemented;
1766 #endif
1767     case TARGET_NR_access:
1768         ret = get_errno(access((const char *)arg1, arg2));
1769         break;
1770     case TARGET_NR_nice:
1771         ret = get_errno(nice(arg1));
1772         break;
1773 #ifdef TARGET_NR_ftime
1774     case TARGET_NR_ftime:
1775         goto unimplemented;
1776 #endif
1777     case TARGET_NR_sync:
1778         sync();
1779         ret = 0;
1780         break;
1781     case TARGET_NR_kill:
1782         ret = get_errno(kill(arg1, arg2));
1783         break;
1784     case TARGET_NR_rename:
1785         ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1786         break;
1787     case TARGET_NR_mkdir:
1788         ret = get_errno(mkdir((const char *)arg1, arg2));
1789         break;
1790     case TARGET_NR_rmdir:
1791         ret = get_errno(rmdir((const char *)arg1));
1792         break;
1793     case TARGET_NR_dup:
1794         ret = get_errno(dup(arg1));
1795         break;
1796     case TARGET_NR_pipe:
1797         {
1798             int *pipe_ptr = (int *)arg1;
1799             ret = get_errno(pipe(pipe_ptr));
1800             if (!is_error(ret)) {
1801                 tswap32s(&pipe_ptr[0]);
1802                 tswap32s(&pipe_ptr[1]);
1803             }
1804         }
1805         break;
1806     case TARGET_NR_times:
1807         {
1808             struct target_tms *tmsp = (void *)arg1;
1809             struct tms tms;
1810             ret = get_errno(times(&tms));
1811             if (tmsp) {
1812                 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1813                 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1814                 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1815                 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1816             }
1817             if (!is_error(ret))
1818                 ret = host_to_target_clock_t(ret);
1819         }
1820         break;
1821 #ifdef TARGET_NR_prof
1822     case TARGET_NR_prof:
1823         goto unimplemented;
1824 #endif
1825     case TARGET_NR_signal:
1826         goto unimplemented;
1827
1828     case TARGET_NR_acct:
1829         goto unimplemented;
1830     case TARGET_NR_umount2:
1831         ret = get_errno(umount2((const char *)arg1, arg2));
1832         break;
1833 #ifdef TARGET_NR_lock
1834     case TARGET_NR_lock:
1835         goto unimplemented;
1836 #endif
1837     case TARGET_NR_ioctl:
1838         ret = do_ioctl(arg1, arg2, arg3);
1839         break;
1840     case TARGET_NR_fcntl:
1841         ret = get_errno(do_fcntl(arg1, arg2, arg3));
1842         break;
1843 #ifdef TARGET_NR_mpx
1844     case TARGET_NR_mpx:
1845         goto unimplemented;
1846 #endif
1847     case TARGET_NR_setpgid:
1848         ret = get_errno(setpgid(arg1, arg2));
1849         break;
1850 #ifdef TARGET_NR_ulimit
1851     case TARGET_NR_ulimit:
1852         goto unimplemented;
1853 #endif
1854 #ifdef TARGET_NR_oldolduname
1855     case TARGET_NR_oldolduname:
1856         goto unimplemented;
1857 #endif
1858     case TARGET_NR_umask:
1859         ret = get_errno(umask(arg1));
1860         break;
1861     case TARGET_NR_chroot:
1862         ret = get_errno(chroot((const char *)arg1));
1863         break;
1864     case TARGET_NR_ustat:
1865         goto unimplemented;
1866     case TARGET_NR_dup2:
1867         ret = get_errno(dup2(arg1, arg2));
1868         break;
1869     case TARGET_NR_getppid:
1870         ret = get_errno(getppid());
1871         break;
1872     case TARGET_NR_getpgrp:
1873         ret = get_errno(getpgrp());
1874         break;
1875     case TARGET_NR_setsid:
1876         ret = get_errno(setsid());
1877         break;
1878     case TARGET_NR_sigaction:
1879         {
1880             struct target_old_sigaction *old_act = (void *)arg2;
1881             struct target_old_sigaction *old_oact = (void *)arg3;
1882             struct target_sigaction act, oact, *pact;
1883             if (old_act) {
1884                 act._sa_handler = old_act->_sa_handler;
1885                 target_siginitset(&act.sa_mask, old_act->sa_mask);
1886                 act.sa_flags = old_act->sa_flags;
1887                 act.sa_restorer = old_act->sa_restorer;
1888                 pact = &act;
1889             } else {
1890                 pact = NULL;
1891             }
1892             ret = get_errno(do_sigaction(arg1, pact, &oact));
1893             if (!is_error(ret) && old_oact) {
1894                 old_oact->_sa_handler = oact._sa_handler;
1895                 old_oact->sa_mask = oact.sa_mask.sig[0];
1896                 old_oact->sa_flags = oact.sa_flags;
1897                 old_oact->sa_restorer = oact.sa_restorer;
1898             }
1899         }
1900         break;
1901     case TARGET_NR_rt_sigaction:
1902         ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1903         break;
1904     case TARGET_NR_sgetmask:
1905         {
1906             sigset_t cur_set;
1907             target_ulong target_set;
1908             sigprocmask(0, NULL, &cur_set);
1909             host_to_target_old_sigset(&target_set, &cur_set);
1910             ret = target_set;
1911         }
1912         break;
1913     case TARGET_NR_ssetmask:
1914         {
1915             sigset_t set, oset, cur_set;
1916             target_ulong target_set = arg1;
1917             sigprocmask(0, NULL, &cur_set);
1918             target_to_host_old_sigset(&set, &target_set);
1919             sigorset(&set, &set, &cur_set);
1920             sigprocmask(SIG_SETMASK, &set, &oset);
1921             host_to_target_old_sigset(&target_set, &oset);
1922             ret = target_set;
1923         }
1924         break;
1925     case TARGET_NR_sigprocmask:
1926         {
1927             int how = arg1;
1928             sigset_t set, oldset, *set_ptr;
1929             target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1930
1931             if (pset) {
1932                 switch(how) {
1933                 case TARGET_SIG_BLOCK:
1934                     how = SIG_BLOCK;
1935                     break;
1936                 case TARGET_SIG_UNBLOCK:
1937                     how = SIG_UNBLOCK;
1938                     break;
1939                 case TARGET_SIG_SETMASK:
1940                     how = SIG_SETMASK;
1941                     break;
1942                 default:
1943                     ret = -EINVAL;
1944                     goto fail;
1945                 }
1946                 target_to_host_old_sigset(&set, pset);
1947                 set_ptr = &set;
1948             } else {
1949                 how = 0;
1950                 set_ptr = NULL;
1951             }
1952             ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1953             if (!is_error(ret) && poldset) {
1954                 host_to_target_old_sigset(poldset, &oldset);
1955             }
1956         }
1957         break;
1958     case TARGET_NR_rt_sigprocmask:
1959         {
1960             int how = arg1;
1961             sigset_t set, oldset, *set_ptr;
1962             target_sigset_t *pset = (void *)arg2;
1963             target_sigset_t *poldset = (void *)arg3;
1964
1965             if (pset) {
1966                 switch(how) {
1967                 case TARGET_SIG_BLOCK:
1968                     how = SIG_BLOCK;
1969                     break;
1970                 case TARGET_SIG_UNBLOCK:
1971                     how = SIG_UNBLOCK;
1972                     break;
1973                 case TARGET_SIG_SETMASK:
1974                     how = SIG_SETMASK;
1975                     break;
1976                 default:
1977                     ret = -EINVAL;
1978                     goto fail;
1979                 }
1980                 target_to_host_sigset(&set, pset);
1981                 set_ptr = &set;
1982             } else {
1983                 how = 0;
1984                 set_ptr = NULL;
1985             }
1986             ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1987             if (!is_error(ret) && poldset) {
1988                 host_to_target_sigset(poldset, &oldset);
1989             }
1990         }
1991         break;
1992     case TARGET_NR_sigpending:
1993         {
1994             sigset_t set;
1995             ret = get_errno(sigpending(&set));
1996             if (!is_error(ret)) {
1997                 host_to_target_old_sigset((target_ulong *)arg1, &set);
1998             }
1999         }
2000         break;
2001     case TARGET_NR_rt_sigpending:
2002         {
2003             sigset_t set;
2004             ret = get_errno(sigpending(&set));
2005             if (!is_error(ret)) {
2006                 host_to_target_sigset((target_sigset_t *)arg1, &set);
2007             }
2008         }
2009         break;
2010     case TARGET_NR_sigsuspend:
2011         {
2012             sigset_t set;
2013             target_to_host_old_sigset(&set, (target_ulong *)arg1);
2014             ret = get_errno(sigsuspend(&set));
2015         }
2016         break;
2017     case TARGET_NR_rt_sigsuspend:
2018         {
2019             sigset_t set;
2020             target_to_host_sigset(&set, (target_sigset_t *)arg1);
2021             ret = get_errno(sigsuspend(&set));
2022         }
2023         break;
2024     case TARGET_NR_rt_sigtimedwait:
2025         {
2026             target_sigset_t *target_set = (void *)arg1;
2027             target_siginfo_t *target_uinfo = (void *)arg2;
2028             struct target_timespec *target_uts = (void *)arg3;
2029             sigset_t set;
2030             struct timespec uts, *puts;
2031             siginfo_t uinfo;
2032
2033             target_to_host_sigset(&set, target_set);
2034             if (target_uts) {
2035                 puts = &uts;
2036                 puts->tv_sec = tswapl(target_uts->tv_sec);
2037                 puts->tv_nsec = tswapl(target_uts->tv_nsec);
2038             } else {
2039                 puts = NULL;
2040             }
2041             ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2042             if (!is_error(ret) && target_uinfo) {
2043                 host_to_target_siginfo(target_uinfo, &uinfo);
2044             }
2045         }
2046         break;
2047     case TARGET_NR_rt_sigqueueinfo:
2048         {
2049             siginfo_t uinfo;
2050             target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
2051             ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2052         }
2053         break;
2054     case TARGET_NR_sigreturn:
2055         /* NOTE: ret is eax, so not transcoding must be done */
2056         ret = do_sigreturn(cpu_env);
2057         break;
2058     case TARGET_NR_rt_sigreturn:
2059         /* NOTE: ret is eax, so not transcoding must be done */
2060         ret = do_rt_sigreturn(cpu_env);
2061         break;
2062     case TARGET_NR_sethostname:
2063         ret = get_errno(sethostname((const char *)arg1, arg2));
2064         break;
2065     case TARGET_NR_setrlimit:
2066         {
2067             /* XXX: convert resource ? */
2068             int resource = arg1;
2069             struct target_rlimit *target_rlim = (void *)arg2;
2070             struct rlimit rlim;
2071             rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2072             rlim.rlim_max = tswapl(target_rlim->rlim_max);
2073             ret = get_errno(setrlimit(resource, &rlim));
2074         }
2075         break;
2076     case TARGET_NR_getrlimit:
2077         {
2078             /* XXX: convert resource ? */
2079             int resource = arg1;
2080             struct target_rlimit *target_rlim = (void *)arg2;
2081             struct rlimit rlim;
2082
2083             ret = get_errno(getrlimit(resource, &rlim));
2084             if (!is_error(ret)) {
2085                 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2086                 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2087             }
2088         }
2089         break;
2090     case TARGET_NR_getrusage:
2091         {
2092             struct rusage rusage;
2093             struct target_rusage *target_rusage = (void *)arg2;
2094             ret = get_errno(getrusage(arg1, &rusage));
2095             if (!is_error(ret)) {
2096                 host_to_target_rusage(target_rusage, &rusage);
2097             }
2098         }
2099         break;
2100     case TARGET_NR_gettimeofday:
2101         {
2102             struct target_timeval *target_tv = (void *)arg1;
2103             struct timeval tv;
2104             ret = get_errno(gettimeofday(&tv, NULL));
2105             if (!is_error(ret)) {
2106                 host_to_target_timeval(target_tv, &tv);
2107             }
2108         }
2109         break;
2110     case TARGET_NR_settimeofday:
2111         {
2112             struct target_timeval *target_tv = (void *)arg1;
2113             struct timeval tv;
2114             target_to_host_timeval(&tv, target_tv);
2115             ret = get_errno(settimeofday(&tv, NULL));
2116         }
2117         break;
2118     case TARGET_NR_select:
2119         {
2120             struct target_sel_arg_struct *sel = (void *)arg1;
2121             sel->n = tswapl(sel->n);
2122             sel->inp = tswapl(sel->inp);
2123             sel->outp = tswapl(sel->outp);
2124             sel->exp = tswapl(sel->exp);
2125             sel->tvp = tswapl(sel->tvp);
2126             ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
2127                             (void *)sel->exp, (void *)sel->tvp);
2128         }
2129         break;
2130     case TARGET_NR_symlink:
2131         ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
2132         break;
2133 #ifdef TARGET_NR_oldlstat
2134     case TARGET_NR_oldlstat:
2135         goto unimplemented;
2136 #endif
2137     case TARGET_NR_readlink:
2138         ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
2139         break;
2140     case TARGET_NR_uselib:
2141         goto unimplemented;
2142     case TARGET_NR_swapon:
2143         ret = get_errno(swapon((const char *)arg1, arg2));
2144         break;
2145     case TARGET_NR_reboot:
2146         goto unimplemented;
2147     case TARGET_NR_readdir:
2148         goto unimplemented;
2149     case TARGET_NR_mmap:
2150 #if defined(TARGET_I386) || defined(TARGET_ARM)
2151         {
2152             uint32_t v1, v2, v3, v4, v5, v6, *vptr;
2153             vptr = (uint32_t *)arg1;
2154             v1 = tswap32(vptr[0]);
2155             v2 = tswap32(vptr[1]);
2156             v3 = tswap32(vptr[2]);
2157             v4 = tswap32(vptr[3]);
2158             v5 = tswap32(vptr[4]);
2159             v6 = tswap32(vptr[5]);
2160             ret = get_errno(target_mmap(v1, v2, v3,
2161                                         target_to_host_bitmask(v4, mmap_flags_tbl),
2162                                         v5, v6));
2163         }
2164 #else
2165         ret = get_errno(target_mmap(arg1, arg2, arg3,
2166                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2167                                     arg5,
2168                                     arg6));
2169 #endif
2170         break;
2171     case TARGET_NR_mmap2:
2172 #if defined(TARGET_SPARC)
2173 #define MMAP_SHIFT 12
2174 #else
2175 #define MMAP_SHIFT TARGET_PAGE_BITS
2176 #endif
2177         ret = get_errno(target_mmap(arg1, arg2, arg3,
2178                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2179                                     arg5,
2180                                     arg6 << MMAP_SHIFT));
2181         break;
2182     case TARGET_NR_munmap:
2183         ret = get_errno(target_munmap(arg1, arg2));
2184         break;
2185     case TARGET_NR_mprotect:
2186         ret = get_errno(target_mprotect(arg1, arg2, arg3));
2187         break;
2188     case TARGET_NR_mremap:
2189         ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2190         break;
2191     case TARGET_NR_msync:
2192         ret = get_errno(msync((void *)arg1, arg2, arg3));
2193         break;
2194     case TARGET_NR_mlock:
2195         ret = get_errno(mlock((void *)arg1, arg2));
2196         break;
2197     case TARGET_NR_munlock:
2198         ret = get_errno(munlock((void *)arg1, arg2));
2199         break;
2200     case TARGET_NR_mlockall:
2201         ret = get_errno(mlockall(arg1));
2202         break;
2203     case TARGET_NR_munlockall:
2204         ret = get_errno(munlockall());
2205         break;
2206     case TARGET_NR_truncate:
2207         ret = get_errno(truncate((const char *)arg1, arg2));
2208         break;
2209     case TARGET_NR_ftruncate:
2210         ret = get_errno(ftruncate(arg1, arg2));
2211         break;
2212     case TARGET_NR_fchmod:
2213         ret = get_errno(fchmod(arg1, arg2));
2214         break;
2215     case TARGET_NR_getpriority:
2216         ret = get_errno(getpriority(arg1, arg2));
2217         break;
2218     case TARGET_NR_setpriority:
2219         ret = get_errno(setpriority(arg1, arg2, arg3));
2220         break;
2221 #ifdef TARGET_NR_profil
2222     case TARGET_NR_profil:
2223         goto unimplemented;
2224 #endif
2225     case TARGET_NR_statfs:
2226         stfs = (void *)arg2;
2227         ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2228     convert_statfs:
2229         if (!is_error(ret)) {
2230             tswap32s(&stfs->f_type);
2231             tswap32s(&stfs->f_bsize);
2232             tswap32s(&stfs->f_blocks);
2233             tswap32s(&stfs->f_bfree);
2234             tswap32s(&stfs->f_bavail);
2235             tswap32s(&stfs->f_files);
2236             tswap32s(&stfs->f_ffree);
2237             tswap32s(&stfs->f_fsid.val[0]);
2238             tswap32s(&stfs->f_fsid.val[1]);
2239             tswap32s(&stfs->f_namelen);
2240         }
2241         break;
2242     case TARGET_NR_fstatfs:
2243         stfs = (void *)arg2;
2244         ret = get_errno(sys_fstatfs(arg1, stfs));
2245         goto convert_statfs;
2246 #ifdef TARGET_NR_ioperm
2247     case TARGET_NR_ioperm:
2248         goto unimplemented;
2249 #endif
2250     case TARGET_NR_socketcall:
2251         ret = do_socketcall(arg1, (int32_t *)arg2);
2252         break;
2253     case TARGET_NR_syslog:
2254         goto unimplemented;
2255     case TARGET_NR_setitimer:
2256         {
2257             struct target_itimerval *target_value = (void *)arg2;
2258             struct target_itimerval *target_ovalue = (void *)arg3;
2259             struct itimerval value, ovalue, *pvalue;
2260
2261             if (target_value) {
2262                 pvalue = &value;
2263                 target_to_host_timeval(&pvalue->it_interval,
2264                                        &target_value->it_interval);
2265                 target_to_host_timeval(&pvalue->it_value,
2266                                        &target_value->it_value);
2267             } else {
2268                 pvalue = NULL;
2269             }
2270             ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2271             if (!is_error(ret) && target_ovalue) {
2272                 host_to_target_timeval(&target_ovalue->it_interval,
2273                                        &ovalue.it_interval);
2274                 host_to_target_timeval(&target_ovalue->it_value,
2275                                        &ovalue.it_value);
2276             }
2277         }
2278         break;
2279     case TARGET_NR_getitimer:
2280         {
2281             struct target_itimerval *target_value = (void *)arg2;
2282             struct itimerval value;
2283
2284             ret = get_errno(getitimer(arg1, &value));
2285             if (!is_error(ret) && target_value) {
2286                 host_to_target_timeval(&target_value->it_interval,
2287                                        &value.it_interval);
2288                 host_to_target_timeval(&target_value->it_value,
2289                                        &value.it_value);
2290             }
2291         }
2292         break;
2293     case TARGET_NR_stat:
2294         ret = get_errno(stat(path((const char *)arg1), &st));
2295         goto do_stat;
2296     case TARGET_NR_lstat:
2297         ret = get_errno(lstat(path((const char *)arg1), &st));
2298         goto do_stat;
2299     case TARGET_NR_fstat:
2300         {
2301             ret = get_errno(fstat(arg1, &st));
2302         do_stat:
2303             if (!is_error(ret)) {
2304                 struct target_stat *target_st = (void *)arg2;
2305                 target_st->st_dev = tswap16(st.st_dev);
2306                 target_st->st_ino = tswapl(st.st_ino);
2307 #if defined(TARGET_PPC)
2308                 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2309                 target_st->st_uid = tswap32(st.st_uid);
2310                 target_st->st_gid = tswap32(st.st_gid);
2311 #else
2312                 target_st->st_mode = tswap16(st.st_mode);
2313                 target_st->st_uid = tswap16(st.st_uid);
2314                 target_st->st_gid = tswap16(st.st_gid);
2315 #endif
2316                 target_st->st_nlink = tswap16(st.st_nlink);
2317                 target_st->st_rdev = tswap16(st.st_rdev);
2318                 target_st->st_size = tswapl(st.st_size);
2319                 target_st->st_blksize = tswapl(st.st_blksize);
2320                 target_st->st_blocks = tswapl(st.st_blocks);
2321                 target_st->target_st_atime = tswapl(st.st_atime);
2322                 target_st->target_st_mtime = tswapl(st.st_mtime);
2323                 target_st->target_st_ctime = tswapl(st.st_ctime);
2324             }
2325         }
2326         break;
2327 #ifdef TARGET_NR_olduname
2328     case TARGET_NR_olduname:
2329         goto unimplemented;
2330 #endif
2331 #ifdef TARGET_NR_iopl
2332     case TARGET_NR_iopl:
2333         goto unimplemented;
2334 #endif
2335     case TARGET_NR_vhangup:
2336         ret = get_errno(vhangup());
2337         break;
2338 #ifdef TARGET_NR_idle
2339     case TARGET_NR_idle:
2340         goto unimplemented;
2341 #endif
2342 #ifdef TARGET_NR_syscall
2343     case TARGET_NR_syscall:
2344         ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
2345         break;
2346 #endif
2347     case TARGET_NR_wait4:
2348         {
2349             int status;
2350             target_long *status_ptr = (void *)arg2;
2351             struct rusage rusage, *rusage_ptr;
2352             struct target_rusage *target_rusage = (void *)arg4;
2353             if (target_rusage)
2354                 rusage_ptr = &rusage;
2355             else
2356                 rusage_ptr = NULL;
2357             ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2358             if (!is_error(ret)) {
2359                 if (status_ptr)
2360                     *status_ptr = tswap32(status);
2361                 if (target_rusage) {
2362                     host_to_target_rusage(target_rusage, &rusage);
2363                 }
2364             }
2365         }
2366         break;
2367     case TARGET_NR_swapoff:
2368         ret = get_errno(swapoff((const char *)arg1));
2369         break;
2370     case TARGET_NR_sysinfo:
2371         {
2372             struct target_sysinfo *target_value = (void *)arg1;
2373             struct sysinfo value;
2374             ret = get_errno(sysinfo(&value));
2375             if (!is_error(ret) && target_value)
2376             {
2377                 __put_user(value.uptime, &target_value->uptime);
2378                 __put_user(value.loads[0], &target_value->loads[0]);
2379                 __put_user(value.loads[1], &target_value->loads[1]);
2380                 __put_user(value.loads[2], &target_value->loads[2]);
2381                 __put_user(value.totalram, &target_value->totalram);
2382                 __put_user(value.freeram, &target_value->freeram);
2383                 __put_user(value.sharedram, &target_value->sharedram);
2384                 __put_user(value.bufferram, &target_value->bufferram);
2385                 __put_user(value.totalswap, &target_value->totalswap);
2386                 __put_user(value.freeswap, &target_value->freeswap);
2387                 __put_user(value.procs, &target_value->procs);
2388                 __put_user(value.totalhigh, &target_value->totalhigh);
2389                 __put_user(value.freehigh, &target_value->freehigh);
2390                 __put_user(value.mem_unit, &target_value->mem_unit);
2391             }
2392         }
2393         break;
2394     case TARGET_NR_ipc:
2395         ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2396         break;
2397     case TARGET_NR_fsync:
2398         ret = get_errno(fsync(arg1));
2399         break;
2400     case TARGET_NR_clone:
2401         ret = get_errno(do_fork(cpu_env, arg1, arg2));
2402         break;
2403 #ifdef __NR_exit_group
2404         /* new thread calls */
2405     case TARGET_NR_exit_group:
2406         ret = get_errno(exit_group(arg1));
2407         break;
2408 #endif
2409     case TARGET_NR_setdomainname:
2410         ret = get_errno(setdomainname((const char *)arg1, arg2));
2411         break;
2412     case TARGET_NR_uname:
2413         /* no need to transcode because we use the linux syscall */
2414         {
2415             struct new_utsname * buf;
2416
2417             buf = (struct new_utsname *)arg1;
2418             ret = get_errno(sys_uname(buf));
2419             if (!is_error(ret)) {
2420                 /* Overrite the native machine name with whatever is being
2421                    emulated. */
2422                 strcpy (buf->machine, UNAME_MACHINE);
2423             }
2424         }
2425         break;
2426 #ifdef TARGET_I386
2427     case TARGET_NR_modify_ldt:
2428         ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2429         break;
2430     case TARGET_NR_vm86old:
2431         goto unimplemented;
2432     case TARGET_NR_vm86:
2433         ret = do_vm86(cpu_env, arg1, (void *)arg2);
2434         break;
2435 #endif
2436     case TARGET_NR_adjtimex:
2437         goto unimplemented;
2438     case TARGET_NR_create_module:
2439     case TARGET_NR_init_module:
2440     case TARGET_NR_delete_module:
2441     case TARGET_NR_get_kernel_syms:
2442         goto unimplemented;
2443     case TARGET_NR_quotactl:
2444         goto unimplemented;
2445     case TARGET_NR_getpgid:
2446         ret = get_errno(getpgid(arg1));
2447         break;
2448     case TARGET_NR_fchdir:
2449         ret = get_errno(fchdir(arg1));
2450         break;
2451     case TARGET_NR_bdflush:
2452         goto unimplemented;
2453     case TARGET_NR_sysfs:
2454         goto unimplemented;
2455     case TARGET_NR_personality:
2456         ret = get_errno(personality(arg1));
2457         break;
2458     case TARGET_NR_afs_syscall:
2459         goto unimplemented;
2460     case TARGET_NR__llseek:
2461         {
2462 #if defined (__x86_64__)
2463             ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2464             *(int64_t *)arg4 = ret;
2465 #else
2466             int64_t res;
2467             ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2468             *(int64_t *)arg4 = tswap64(res);
2469 #endif
2470         }
2471         break;
2472     case TARGET_NR_getdents:
2473 #if TARGET_LONG_SIZE != 4
2474 #error not supported
2475 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2476         {
2477             struct target_dirent *target_dirp = (void *)arg2;
2478             struct dirent *dirp;
2479             long count = arg3;
2480
2481             dirp = malloc(count);
2482             if (!dirp)
2483                 return -ENOMEM;
2484
2485             ret = get_errno(sys_getdents(arg1, dirp, count));
2486             if (!is_error(ret)) {
2487                 struct dirent *de;
2488                 struct target_dirent *tde;
2489                 int len = ret;
2490                 int reclen, treclen;
2491                 int count1, tnamelen;
2492
2493                 count1 = 0;
2494                 de = dirp;
2495                 tde = target_dirp;
2496                 while (len > 0) {
2497                     reclen = de->d_reclen;
2498                     treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2499                     tde->d_reclen = tswap16(treclen);
2500                     tde->d_ino = tswapl(de->d_ino);
2501                     tde->d_off = tswapl(de->d_off);
2502                     tnamelen = treclen - (2 * sizeof(target_long) + 2);
2503                     if (tnamelen > 256)
2504                         tnamelen = 256;
2505                     strncpy(tde->d_name, de->d_name, tnamelen);
2506                     de = (struct dirent *)((char *)de + reclen);
2507                     len -= reclen;
2508                     tde = (struct dirent *)((char *)tde + treclen);
2509                     count1 += treclen;
2510                 }
2511                 ret = count1;
2512             }
2513             free(dirp);
2514         }
2515 #else
2516         {
2517             struct dirent *dirp = (void *)arg2;
2518             long count = arg3;
2519
2520             ret = get_errno(sys_getdents(arg1, dirp, count));
2521             if (!is_error(ret)) {
2522                 struct dirent *de;
2523                 int len = ret;
2524                 int reclen;
2525                 de = dirp;
2526                 while (len > 0) {
2527                     reclen = de->d_reclen;
2528                     if (reclen > len)
2529                         break;
2530                     de->d_reclen = tswap16(reclen);
2531                     tswapls(&de->d_ino);
2532                     tswapls(&de->d_off);
2533                     de = (struct dirent *)((char *)de + reclen);
2534                     len -= reclen;
2535                 }
2536             }
2537         }
2538 #endif
2539         break;
2540 #ifdef TARGET_NR_getdents64
2541     case TARGET_NR_getdents64:
2542         {
2543             struct dirent64 *dirp = (void *)arg2;
2544             long count = arg3;
2545             ret = get_errno(sys_getdents64(arg1, dirp, count));
2546             if (!is_error(ret)) {
2547                 struct dirent64 *de;
2548                 int len = ret;
2549                 int reclen;
2550                 de = dirp;
2551                 while (len > 0) {
2552                     reclen = de->d_reclen;
2553                     if (reclen > len)
2554                         break;
2555                     de->d_reclen = tswap16(reclen);
2556                     tswap64s(&de->d_ino);
2557                     tswap64s(&de->d_off);
2558                     de = (struct dirent64 *)((char *)de + reclen);
2559                     len -= reclen;
2560                 }
2561             }
2562         }
2563         break;
2564 #endif /* TARGET_NR_getdents64 */
2565     case TARGET_NR__newselect:
2566         ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2567                         (void *)arg5);
2568         break;
2569     case TARGET_NR_poll:
2570         {
2571             struct target_pollfd *target_pfd = (void *)arg1;
2572             unsigned int nfds = arg2;
2573             int timeout = arg3;
2574             struct pollfd *pfd;
2575             unsigned int i;
2576
2577             pfd = alloca(sizeof(struct pollfd) * nfds);
2578             for(i = 0; i < nfds; i++) {
2579                 pfd[i].fd = tswap32(target_pfd[i].fd);
2580                 pfd[i].events = tswap16(target_pfd[i].events);
2581             }
2582             ret = get_errno(poll(pfd, nfds, timeout));
2583             if (!is_error(ret)) {
2584                 for(i = 0; i < nfds; i++) {
2585                     target_pfd[i].revents = tswap16(pfd[i].revents);
2586                 }
2587             }
2588         }
2589         break;
2590     case TARGET_NR_flock:
2591         /* NOTE: the flock constant seems to be the same for every
2592            Linux platform */
2593         ret = get_errno(flock(arg1, arg2));
2594         break;
2595     case TARGET_NR_readv:
2596         {
2597             int count = arg3;
2598             int i;
2599             struct iovec *vec;
2600             struct target_iovec *target_vec = (void *)arg2;
2601
2602             vec = alloca(count * sizeof(struct iovec));
2603             for(i = 0;i < count; i++) {
2604                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2605                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2606             }
2607             ret = get_errno(readv(arg1, vec, count));
2608         }
2609         break;
2610     case TARGET_NR_writev:
2611         {
2612             int count = arg3;
2613             int i;
2614             struct iovec *vec;
2615             struct target_iovec *target_vec = (void *)arg2;
2616
2617             vec = alloca(count * sizeof(struct iovec));
2618             for(i = 0;i < count; i++) {
2619                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2620                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2621             }
2622             ret = get_errno(writev(arg1, vec, count));
2623         }
2624         break;
2625     case TARGET_NR_getsid:
2626         ret = get_errno(getsid(arg1));
2627         break;
2628     case TARGET_NR_fdatasync:
2629         ret = get_errno(fdatasync(arg1));
2630         break;
2631     case TARGET_NR__sysctl:
2632         /* We don't implement this, but ENODIR is always a safe
2633            return value. */
2634         return -ENOTDIR;
2635     case TARGET_NR_sched_setparam:
2636         {
2637             struct sched_param *target_schp = (void *)arg2;
2638             struct sched_param schp;
2639             schp.sched_priority = tswap32(target_schp->sched_priority);
2640             ret = get_errno(sched_setparam(arg1, &schp));
2641         }
2642         break;
2643     case TARGET_NR_sched_getparam:
2644         {
2645             struct sched_param *target_schp = (void *)arg2;
2646             struct sched_param schp;
2647             ret = get_errno(sched_getparam(arg1, &schp));
2648             if (!is_error(ret)) {
2649                 target_schp->sched_priority = tswap32(schp.sched_priority);
2650             }
2651         }
2652         break;
2653     case TARGET_NR_sched_setscheduler:
2654         {
2655             struct sched_param *target_schp = (void *)arg3;
2656             struct sched_param schp;
2657             schp.sched_priority = tswap32(target_schp->sched_priority);
2658             ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2659         }
2660         break;
2661     case TARGET_NR_sched_getscheduler:
2662         ret = get_errno(sched_getscheduler(arg1));
2663         break;
2664     case TARGET_NR_sched_yield:
2665         ret = get_errno(sched_yield());
2666         break;
2667     case TARGET_NR_sched_get_priority_max:
2668         ret = get_errno(sched_get_priority_max(arg1));
2669         break;
2670     case TARGET_NR_sched_get_priority_min:
2671         ret = get_errno(sched_get_priority_min(arg1));
2672         break;
2673     case TARGET_NR_sched_rr_get_interval:
2674         {
2675             struct target_timespec *target_ts = (void *)arg2;
2676             struct timespec ts;
2677             ret = get_errno(sched_rr_get_interval(arg1, &ts));
2678             if (!is_error(ret)) {
2679                 target_ts->tv_sec = tswapl(ts.tv_sec);
2680                 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2681             }
2682         }
2683         break;
2684     case TARGET_NR_nanosleep:
2685         {
2686             struct target_timespec *target_req = (void *)arg1;
2687             struct target_timespec *target_rem = (void *)arg2;
2688             struct timespec req, rem;
2689             req.tv_sec = tswapl(target_req->tv_sec);
2690             req.tv_nsec = tswapl(target_req->tv_nsec);
2691             ret = get_errno(nanosleep(&req, &rem));
2692             if (is_error(ret) && target_rem) {
2693                 target_rem->tv_sec = tswapl(rem.tv_sec);
2694                 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2695             }
2696         }
2697         break;
2698     case TARGET_NR_query_module:
2699         goto unimplemented;
2700     case TARGET_NR_nfsservctl:
2701         goto unimplemented;
2702     case TARGET_NR_prctl:
2703         goto unimplemented;
2704 #ifdef TARGET_NR_pread
2705     case TARGET_NR_pread:
2706         page_unprotect_range((void *)arg2, arg3);
2707         ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2708         break;
2709     case TARGET_NR_pwrite:
2710         ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2711         break;
2712 #endif
2713     case TARGET_NR_getcwd:
2714         ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2715         break;
2716     case TARGET_NR_capget:
2717         goto unimplemented;
2718     case TARGET_NR_capset:
2719         goto unimplemented;
2720     case TARGET_NR_sigaltstack:
2721         goto unimplemented;
2722     case TARGET_NR_sendfile:
2723         goto unimplemented;
2724 #ifdef TARGET_NR_getpmsg
2725     case TARGET_NR_getpmsg:
2726         goto unimplemented;
2727 #endif
2728 #ifdef TARGET_NR_putpmsg
2729     case TARGET_NR_putpmsg:
2730         goto unimplemented;
2731 #endif
2732     case TARGET_NR_vfork:
2733         ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2734         break;
2735 #ifdef TARGET_NR_ugetrlimit
2736     case TARGET_NR_ugetrlimit:
2737     {
2738         struct rlimit rlim;
2739         ret = get_errno(getrlimit(arg1, &rlim));
2740         if (!is_error(ret)) {
2741             struct target_rlimit *target_rlim = (void *)arg2;
2742             target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2743             target_rlim->rlim_max = tswapl(rlim.rlim_max);
2744         }
2745         break;
2746     }
2747 #endif
2748     case TARGET_NR_truncate64:
2749         goto unimplemented;
2750     case TARGET_NR_ftruncate64:
2751         goto unimplemented;
2752     case TARGET_NR_stat64:
2753         ret = get_errno(stat(path((const char *)arg1), &st));
2754         goto do_stat64;
2755     case TARGET_NR_lstat64:
2756         ret = get_errno(lstat(path((const char *)arg1), &st));
2757         goto do_stat64;
2758     case TARGET_NR_fstat64:
2759         {
2760             ret = get_errno(fstat(arg1, &st));
2761         do_stat64:
2762             if (!is_error(ret)) {
2763                 struct target_stat64 *target_st = (void *)arg2;
2764                 memset(target_st, 0, sizeof(struct target_stat64));
2765                 put_user(st.st_dev, &target_st->st_dev);
2766                 put_user(st.st_ino, &target_st->st_ino);
2767 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2768                 put_user(st.st_ino, &target_st->__st_ino);
2769 #endif
2770                 put_user(st.st_mode, &target_st->st_mode);
2771                 put_user(st.st_nlink, &target_st->st_nlink);
2772                 put_user(st.st_uid, &target_st->st_uid);
2773                 put_user(st.st_gid, &target_st->st_gid);
2774                 put_user(st.st_rdev, &target_st->st_rdev);
2775                 /* XXX: better use of kernel struct */
2776                 put_user(st.st_size, &target_st->st_size);
2777                 put_user(st.st_blksize, &target_st->st_blksize);
2778                 put_user(st.st_blocks, &target_st->st_blocks);
2779                 put_user(st.st_atime, &target_st->target_st_atime);
2780                 put_user(st.st_mtime, &target_st->target_st_mtime);
2781                 put_user(st.st_ctime, &target_st->target_st_ctime);
2782             }
2783         }
2784         break;
2785
2786 #ifdef USE_UID16
2787     case TARGET_NR_lchown:
2788         ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2789         break;
2790     case TARGET_NR_getuid:
2791         ret = get_errno(high2lowuid(getuid()));
2792         break;
2793     case TARGET_NR_getgid:
2794         ret = get_errno(high2lowgid(getgid()));
2795         break;
2796     case TARGET_NR_geteuid:
2797         ret = get_errno(high2lowuid(geteuid()));
2798         break;
2799     case TARGET_NR_getegid:
2800         ret = get_errno(high2lowgid(getegid()));
2801         break;
2802     case TARGET_NR_setreuid:
2803         ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2804         break;
2805     case TARGET_NR_setregid:
2806         ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2807         break;
2808     case TARGET_NR_getgroups:
2809         {
2810             int gidsetsize = arg1;
2811             uint16_t *target_grouplist = (void *)arg2;
2812             gid_t *grouplist;
2813             int i;
2814
2815             grouplist = alloca(gidsetsize * sizeof(gid_t));
2816             ret = get_errno(getgroups(gidsetsize, grouplist));
2817             if (!is_error(ret)) {
2818                 for(i = 0;i < gidsetsize; i++)
2819                     target_grouplist[i] = tswap16(grouplist[i]);
2820             }
2821         }
2822         break;
2823     case TARGET_NR_setgroups:
2824         {
2825             int gidsetsize = arg1;
2826             uint16_t *target_grouplist = (void *)arg2;
2827             gid_t *grouplist;
2828             int i;
2829
2830             grouplist = alloca(gidsetsize * sizeof(gid_t));
2831             for(i = 0;i < gidsetsize; i++)
2832                 grouplist[i] = tswap16(target_grouplist[i]);
2833             ret = get_errno(setgroups(gidsetsize, grouplist));
2834         }
2835         break;
2836     case TARGET_NR_fchown:
2837         ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2838         break;
2839 #ifdef TARGET_NR_setresuid
2840     case TARGET_NR_setresuid:
2841         ret = get_errno(setresuid(low2highuid(arg1),
2842                                   low2highuid(arg2),
2843                                   low2highuid(arg3)));
2844         break;
2845 #endif
2846 #ifdef TARGET_NR_getresuid
2847     case TARGET_NR_getresuid:
2848         {
2849             int ruid, euid, suid;
2850             ret = get_errno(getresuid(&ruid, &euid, &suid));
2851             if (!is_error(ret)) {
2852                 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2853                 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2854                 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2855             }
2856         }
2857         break;
2858 #endif
2859 #ifdef TARGET_NR_getresgid
2860     case TARGET_NR_setresgid:
2861         ret = get_errno(setresgid(low2highgid(arg1),
2862                                   low2highgid(arg2),
2863                                   low2highgid(arg3)));
2864         break;
2865 #endif
2866 #ifdef TARGET_NR_getresgid
2867     case TARGET_NR_getresgid:
2868         {
2869             int rgid, egid, sgid;
2870             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2871             if (!is_error(ret)) {
2872                 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2873                 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2874                 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2875             }
2876         }
2877         break;
2878 #endif
2879     case TARGET_NR_chown:
2880         ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2881         break;
2882     case TARGET_NR_setuid:
2883         ret = get_errno(setuid(low2highuid(arg1)));
2884         break;
2885     case TARGET_NR_setgid:
2886         ret = get_errno(setgid(low2highgid(arg1)));
2887         break;
2888     case TARGET_NR_setfsuid:
2889         ret = get_errno(setfsuid(arg1));
2890         break;
2891     case TARGET_NR_setfsgid:
2892         ret = get_errno(setfsgid(arg1));
2893         break;
2894 #endif /* USE_UID16 */
2895
2896     case TARGET_NR_lchown32:
2897         ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2898         break;
2899     case TARGET_NR_getuid32:
2900         ret = get_errno(getuid());
2901         break;
2902     case TARGET_NR_getgid32:
2903         ret = get_errno(getgid());
2904         break;
2905     case TARGET_NR_geteuid32:
2906         ret = get_errno(geteuid());
2907         break;
2908     case TARGET_NR_getegid32:
2909         ret = get_errno(getegid());
2910         break;
2911     case TARGET_NR_setreuid32:
2912         ret = get_errno(setreuid(arg1, arg2));
2913         break;
2914     case TARGET_NR_setregid32:
2915         ret = get_errno(setregid(arg1, arg2));
2916         break;
2917     case TARGET_NR_getgroups32:
2918         goto unimplemented;
2919     case TARGET_NR_setgroups32:
2920         goto unimplemented;
2921     case TARGET_NR_fchown32:
2922         ret = get_errno(fchown(arg1, arg2, arg3));
2923         break;
2924     case TARGET_NR_setresuid32:
2925         ret = get_errno(setresuid(arg1, arg2, arg3));
2926         break;
2927     case TARGET_NR_getresuid32:
2928         {
2929             int ruid, euid, suid;
2930             ret = get_errno(getresuid(&ruid, &euid, &suid));
2931             if (!is_error(ret)) {
2932                 *(uint32_t *)arg1 = tswap32(ruid);
2933                 *(uint32_t *)arg2 = tswap32(euid);
2934                 *(uint32_t *)arg3 = tswap32(suid);
2935             }
2936         }
2937         break;
2938     case TARGET_NR_setresgid32:
2939         ret = get_errno(setresgid(arg1, arg2, arg3));
2940         break;
2941     case TARGET_NR_getresgid32:
2942         {
2943             int rgid, egid, sgid;
2944             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2945             if (!is_error(ret)) {
2946                 *(uint32_t *)arg1 = tswap32(rgid);
2947                 *(uint32_t *)arg2 = tswap32(egid);
2948                 *(uint32_t *)arg3 = tswap32(sgid);
2949             }
2950         }
2951         break;
2952     case TARGET_NR_chown32:
2953         ret = get_errno(chown((const char *)arg1, arg2, arg3));
2954         break;
2955     case TARGET_NR_setuid32:
2956         ret = get_errno(setuid(arg1));
2957         break;
2958     case TARGET_NR_setgid32:
2959         ret = get_errno(setgid(arg1));
2960         break;
2961     case TARGET_NR_setfsuid32:
2962         ret = get_errno(setfsuid(arg1));
2963         break;
2964     case TARGET_NR_setfsgid32:
2965         ret = get_errno(setfsgid(arg1));
2966         break;
2967
2968     case TARGET_NR_pivot_root:
2969         goto unimplemented;
2970 #ifdef TARGET_NR_mincore
2971     case TARGET_NR_mincore:
2972         goto unimplemented;
2973 #endif
2974 #ifdef TARGET_NR_madvise
2975     case TARGET_NR_madvise:
2976         goto unimplemented;
2977 #endif
2978 #if TARGET_LONG_BITS == 32
2979     case TARGET_NR_fcntl64:
2980     {
2981         struct flock64 fl;
2982         struct target_flock64 *target_fl = (void *)arg3;
2983
2984         switch(arg2) {
2985         case F_GETLK64:
2986             ret = get_errno(fcntl(arg1, arg2, &fl));
2987             if (ret == 0) {
2988                 target_fl->l_type = tswap16(fl.l_type);
2989                 target_fl->l_whence = tswap16(fl.l_whence);
2990                 target_fl->l_start = tswap64(fl.l_start);
2991                 target_fl->l_len = tswap64(fl.l_len);
2992                 target_fl->l_pid = tswapl(fl.l_pid);
2993             }
2994             break;
2995
2996         case F_SETLK64:
2997         case F_SETLKW64:
2998             fl.l_type = tswap16(target_fl->l_type);
2999             fl.l_whence = tswap16(target_fl->l_whence);
3000             fl.l_start = tswap64(target_fl->l_start);
3001             fl.l_len = tswap64(target_fl->l_len);
3002             fl.l_pid = tswapl(target_fl->l_pid);
3003             ret = get_errno(fcntl(arg1, arg2, &fl));
3004             break;
3005         default:
3006             ret = get_errno(do_fcntl(arg1, arg2, arg3));
3007             break;
3008         }
3009         break;
3010     }
3011 #endif
3012 #ifdef TARGET_NR_security
3013     case TARGET_NR_security:
3014         goto unimplemented;
3015 #endif
3016 #ifdef TARGET_NR_getpagesize
3017     case TARGET_NR_getpagesize:
3018         ret = TARGET_PAGE_SIZE;
3019         break;
3020 #endif
3021     case TARGET_NR_gettid:
3022         ret = get_errno(gettid());
3023         break;
3024     case TARGET_NR_readahead:
3025         goto unimplemented;
3026 #ifdef TARGET_NR_setxattr
3027     case TARGET_NR_setxattr:
3028     case TARGET_NR_lsetxattr:
3029     case TARGET_NR_fsetxattr:
3030     case TARGET_NR_getxattr:
3031     case TARGET_NR_lgetxattr:
3032     case TARGET_NR_fgetxattr:
3033     case TARGET_NR_listxattr:
3034     case TARGET_NR_llistxattr:
3035     case TARGET_NR_flistxattr:
3036     case TARGET_NR_removexattr:
3037     case TARGET_NR_lremovexattr:
3038     case TARGET_NR_fremovexattr:
3039         goto unimplemented_nowarn;
3040 #endif
3041 #ifdef TARGET_NR_set_thread_area
3042     case TARGET_NR_set_thread_area:
3043     case TARGET_NR_get_thread_area:
3044         goto unimplemented_nowarn;
3045 #endif
3046     default:
3047     unimplemented:
3048         gemu_log("qemu: Unsupported syscall: %d\n", num);
3049     unimplemented_nowarn:
3050         ret = -ENOSYS;
3051         break;
3052     }
3053  fail:
3054 #ifdef DEBUG
3055     gemu_log(" = %ld\n", ret);
3056 #endif
3057     return ret;
3058 }
3059