vcs.maemo.org Git - qemu/blob - qemu/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 #ifdef TARGET_NR_stty
1746     case TARGET_NR_stty:
1747         goto unimplemented;
1748 #endif
1749 #ifdef TARGET_NR_gtty
1750     case TARGET_NR_gtty:
1751         goto unimplemented;
1752 #endif
1753     case TARGET_NR_access:
1754         ret = get_errno(access((const char *)arg1, arg2));
1755         break;
1756     case TARGET_NR_nice:
1757         ret = get_errno(nice(arg1));
1758         break;
1759 #ifdef TARGET_NR_ftime
1760     case TARGET_NR_ftime:
1761         goto unimplemented;
1762 #endif
1763     case TARGET_NR_sync:
1764         sync();
1765         ret = 0;
1766         break;
1767     case TARGET_NR_kill:
1768         ret = get_errno(kill(arg1, arg2));
1769         break;
1770     case TARGET_NR_rename:
1771         ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1772         break;
1773     case TARGET_NR_mkdir:
1774         ret = get_errno(mkdir((const char *)arg1, arg2));
1775         break;
1776     case TARGET_NR_rmdir:
1777         ret = get_errno(rmdir((const char *)arg1));
1778         break;
1779     case TARGET_NR_dup:
1780         ret = get_errno(dup(arg1));
1781         break;
1782     case TARGET_NR_pipe:
1783         {
1784             int *pipe_ptr = (int *)arg1;
1785             ret = get_errno(pipe(pipe_ptr));
1786             if (!is_error(ret)) {
1787                 tswap32s(&pipe_ptr[0]);
1788                 tswap32s(&pipe_ptr[1]);
1789             }
1790         }
1791         break;
1792     case TARGET_NR_times:
1793         {
1794             struct target_tms *tmsp = (void *)arg1;
1795             struct tms tms;
1796             ret = get_errno(times(&tms));
1797             if (tmsp) {
1798                 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1799                 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1800                 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1801                 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1802             }
1803             if (!is_error(ret))
1804                 ret = host_to_target_clock_t(ret);
1805         }
1806         break;
1807 #ifdef TARGET_NR_prof
1808     case TARGET_NR_prof:
1809         goto unimplemented;
1810 #endif
1811     case TARGET_NR_signal:
1812         goto unimplemented;
1813
1814     case TARGET_NR_acct:
1815         goto unimplemented;
1816     case TARGET_NR_umount2:
1817         ret = get_errno(umount2((const char *)arg1, arg2));
1818         break;
1819 #ifdef TARGET_NR_lock
1820     case TARGET_NR_lock:
1821         goto unimplemented;
1822 #endif
1823     case TARGET_NR_ioctl:
1824         ret = do_ioctl(arg1, arg2, arg3);
1825         break;
1826     case TARGET_NR_fcntl:
1827         ret = get_errno(do_fcntl(arg1, arg2, arg3));
1828         break;
1829 #ifdef TARGET_NR_mpx
1830     case TARGET_NR_mpx:
1831         goto unimplemented;
1832 #endif
1833     case TARGET_NR_setpgid:
1834         ret = get_errno(setpgid(arg1, arg2));
1835         break;
1836 #ifdef TARGET_NR_ulimit
1837     case TARGET_NR_ulimit:
1838         goto unimplemented;
1839 #endif
1840 #ifdef TARGET_NR_oldolduname
1841     case TARGET_NR_oldolduname:
1842         goto unimplemented;
1843 #endif
1844     case TARGET_NR_umask:
1845         ret = get_errno(umask(arg1));
1846         break;
1847     case TARGET_NR_chroot:
1848         ret = get_errno(chroot((const char *)arg1));
1849         break;
1850     case TARGET_NR_ustat:
1851         goto unimplemented;
1852     case TARGET_NR_dup2:
1853         ret = get_errno(dup2(arg1, arg2));
1854         break;
1855     case TARGET_NR_getppid:
1856         ret = get_errno(getppid());
1857         break;
1858     case TARGET_NR_getpgrp:
1859         ret = get_errno(getpgrp());
1860         break;
1861     case TARGET_NR_setsid:
1862         ret = get_errno(setsid());
1863         break;
1864     case TARGET_NR_sigaction:
1865         {
1866             struct target_old_sigaction *old_act = (void *)arg2;
1867             struct target_old_sigaction *old_oact = (void *)arg3;
1868             struct target_sigaction act, oact, *pact;
1869             if (old_act) {
1870                 act._sa_handler = old_act->_sa_handler;
1871                 target_siginitset(&act.sa_mask, old_act->sa_mask);
1872                 act.sa_flags = old_act->sa_flags;
1873                 act.sa_restorer = old_act->sa_restorer;
1874                 pact = &act;
1875             } else {
1876                 pact = NULL;
1877             }
1878             ret = get_errno(do_sigaction(arg1, pact, &oact));
1879             if (!is_error(ret) && old_oact) {
1880                 old_oact->_sa_handler = oact._sa_handler;
1881                 old_oact->sa_mask = oact.sa_mask.sig[0];
1882                 old_oact->sa_flags = oact.sa_flags;
1883                 old_oact->sa_restorer = oact.sa_restorer;
1884             }
1885         }
1886         break;
1887     case TARGET_NR_rt_sigaction:
1888         ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1889         break;
1890     case TARGET_NR_sgetmask:
1891         {
1892             sigset_t cur_set;
1893             target_ulong target_set;
1894             sigprocmask(0, NULL, &cur_set);
1895             host_to_target_old_sigset(&target_set, &cur_set);
1896             ret = target_set;
1897         }
1898         break;
1899     case TARGET_NR_ssetmask:
1900         {
1901             sigset_t set, oset, cur_set;
1902             target_ulong target_set = arg1;
1903             sigprocmask(0, NULL, &cur_set);
1904             target_to_host_old_sigset(&set, &target_set);
1905             sigorset(&set, &set, &cur_set);
1906             sigprocmask(SIG_SETMASK, &set, &oset);
1907             host_to_target_old_sigset(&target_set, &oset);
1908             ret = target_set;
1909         }
1910         break;
1911     case TARGET_NR_sigprocmask:
1912         {
1913             int how = arg1;
1914             sigset_t set, oldset, *set_ptr;
1915             target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1916
1917             if (pset) {
1918                 switch(how) {
1919                 case TARGET_SIG_BLOCK:
1920                     how = SIG_BLOCK;
1921                     break;
1922                 case TARGET_SIG_UNBLOCK:
1923                     how = SIG_UNBLOCK;
1924                     break;
1925                 case TARGET_SIG_SETMASK:
1926                     how = SIG_SETMASK;
1927                     break;
1928                 default:
1929                     ret = -EINVAL;
1930                     goto fail;
1931                 }
1932                 target_to_host_old_sigset(&set, pset);
1933                 set_ptr = &set;
1934             } else {
1935                 how = 0;
1936                 set_ptr = NULL;
1937             }
1938             ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1939             if (!is_error(ret) && poldset) {
1940                 host_to_target_old_sigset(poldset, &oldset);
1941             }
1942         }
1943         break;
1944     case TARGET_NR_rt_sigprocmask:
1945         {
1946             int how = arg1;
1947             sigset_t set, oldset, *set_ptr;
1948             target_sigset_t *pset = (void *)arg2;
1949             target_sigset_t *poldset = (void *)arg3;
1950
1951             if (pset) {
1952                 switch(how) {
1953                 case TARGET_SIG_BLOCK:
1954                     how = SIG_BLOCK;
1955                     break;
1956                 case TARGET_SIG_UNBLOCK:
1957                     how = SIG_UNBLOCK;
1958                     break;
1959                 case TARGET_SIG_SETMASK:
1960                     how = SIG_SETMASK;
1961                     break;
1962                 default:
1963                     ret = -EINVAL;
1964                     goto fail;
1965                 }
1966                 target_to_host_sigset(&set, pset);
1967                 set_ptr = &set;
1968             } else {
1969                 how = 0;
1970                 set_ptr = NULL;
1971             }
1972             ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1973             if (!is_error(ret) && poldset) {
1974                 host_to_target_sigset(poldset, &oldset);
1975             }
1976         }
1977         break;
1978     case TARGET_NR_sigpending:
1979         {
1980             sigset_t set;
1981             ret = get_errno(sigpending(&set));
1982             if (!is_error(ret)) {
1983                 host_to_target_old_sigset((target_ulong *)arg1, &set);
1984             }
1985         }
1986         break;
1987     case TARGET_NR_rt_sigpending:
1988         {
1989             sigset_t set;
1990             ret = get_errno(sigpending(&set));
1991             if (!is_error(ret)) {
1992                 host_to_target_sigset((target_sigset_t *)arg1, &set);
1993             }
1994         }
1995         break;
1996     case TARGET_NR_sigsuspend:
1997         {
1998             sigset_t set;
1999             target_to_host_old_sigset(&set, (target_ulong *)arg1);
2000             ret = get_errno(sigsuspend(&set));
2001         }
2002         break;
2003     case TARGET_NR_rt_sigsuspend:
2004         {
2005             sigset_t set;
2006             target_to_host_sigset(&set, (target_sigset_t *)arg1);
2007             ret = get_errno(sigsuspend(&set));
2008         }
2009         break;
2010     case TARGET_NR_rt_sigtimedwait:
2011         {
2012             target_sigset_t *target_set = (void *)arg1;
2013             target_siginfo_t *target_uinfo = (void *)arg2;
2014             struct target_timespec *target_uts = (void *)arg3;
2015             sigset_t set;
2016             struct timespec uts, *puts;
2017             siginfo_t uinfo;
2018
2019             target_to_host_sigset(&set, target_set);
2020             if (target_uts) {
2021                 puts = &uts;
2022                 puts->tv_sec = tswapl(target_uts->tv_sec);
2023                 puts->tv_nsec = tswapl(target_uts->tv_nsec);
2024             } else {
2025                 puts = NULL;
2026             }
2027             ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2028             if (!is_error(ret) && target_uinfo) {
2029                 host_to_target_siginfo(target_uinfo, &uinfo);
2030             }
2031         }
2032         break;
2033     case TARGET_NR_rt_sigqueueinfo:
2034         {
2035             siginfo_t uinfo;
2036             target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
2037             ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2038         }
2039         break;
2040     case TARGET_NR_sigreturn:
2041         /* NOTE: ret is eax, so not transcoding must be done */
2042         ret = do_sigreturn(cpu_env);
2043         break;
2044     case TARGET_NR_rt_sigreturn:
2045         /* NOTE: ret is eax, so not transcoding must be done */
2046         ret = do_rt_sigreturn(cpu_env);
2047         break;
2048     case TARGET_NR_sethostname:
2049         ret = get_errno(sethostname((const char *)arg1, arg2));
2050         break;
2051     case TARGET_NR_setrlimit:
2052         {
2053             /* XXX: convert resource ? */
2054             int resource = arg1;
2055             struct target_rlimit *target_rlim = (void *)arg2;
2056             struct rlimit rlim;
2057             rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2058             rlim.rlim_max = tswapl(target_rlim->rlim_max);
2059             ret = get_errno(setrlimit(resource, &rlim));
2060         }
2061         break;
2062     case TARGET_NR_getrlimit:
2063         {
2064             /* XXX: convert resource ? */
2065             int resource = arg1;
2066             struct target_rlimit *target_rlim = (void *)arg2;
2067             struct rlimit rlim;
2068
2069             ret = get_errno(getrlimit(resource, &rlim));
2070             if (!is_error(ret)) {
2071                 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2072                 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2073             }
2074         }
2075         break;
2076     case TARGET_NR_getrusage:
2077         {
2078             struct rusage rusage;
2079             struct target_rusage *target_rusage = (void *)arg2;
2080             ret = get_errno(getrusage(arg1, &rusage));
2081             if (!is_error(ret)) {
2082                 host_to_target_rusage(target_rusage, &rusage);
2083             }
2084         }
2085         break;
2086     case TARGET_NR_gettimeofday:
2087         {
2088             struct target_timeval *target_tv = (void *)arg1;
2089             struct timeval tv;
2090             ret = get_errno(gettimeofday(&tv, NULL));
2091             if (!is_error(ret)) {
2092                 host_to_target_timeval(target_tv, &tv);
2093             }
2094         }
2095         break;
2096     case TARGET_NR_settimeofday:
2097         {
2098             struct target_timeval *target_tv = (void *)arg1;
2099             struct timeval tv;
2100             target_to_host_timeval(&tv, target_tv);
2101             ret = get_errno(settimeofday(&tv, NULL));
2102         }
2103         break;
2104     case TARGET_NR_select:
2105         {
2106             struct target_sel_arg_struct *sel = (void *)arg1;
2107             sel->n = tswapl(sel->n);
2108             sel->inp = tswapl(sel->inp);
2109             sel->outp = tswapl(sel->outp);
2110             sel->exp = tswapl(sel->exp);
2111             sel->tvp = tswapl(sel->tvp);
2112             ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
2113                             (void *)sel->exp, (void *)sel->tvp);
2114         }
2115         break;
2116     case TARGET_NR_symlink:
2117         ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
2118         break;
2119 #ifdef TARGET_NR_oldlstat
2120     case TARGET_NR_oldlstat:
2121         goto unimplemented;
2122 #endif
2123     case TARGET_NR_readlink:
2124         ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
2125         break;
2126     case TARGET_NR_uselib:
2127         goto unimplemented;
2128     case TARGET_NR_swapon:
2129         ret = get_errno(swapon((const char *)arg1, arg2));
2130         break;
2131     case TARGET_NR_reboot:
2132         goto unimplemented;
2133     case TARGET_NR_readdir:
2134         goto unimplemented;
2135     case TARGET_NR_mmap:
2136 #if defined(TARGET_I386) || defined(TARGET_ARM)
2137         {
2138             uint32_t v1, v2, v3, v4, v5, v6, *vptr;
2139             vptr = (uint32_t *)arg1;
2140             v1 = tswap32(vptr[0]);
2141             v2 = tswap32(vptr[1]);
2142             v3 = tswap32(vptr[2]);
2143             v4 = tswap32(vptr[3]);
2144             v5 = tswap32(vptr[4]);
2145             v6 = tswap32(vptr[5]);
2146             ret = get_errno(target_mmap(v1, v2, v3,
2147                                         target_to_host_bitmask(v4, mmap_flags_tbl),
2148                                         v5, v6));
2149         }
2150 #else
2151         ret = get_errno(target_mmap(arg1, arg2, arg3,
2152                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2153                                     arg5,
2154                                     arg6));
2155 #endif
2156         break;
2157     case TARGET_NR_mmap2:
2158 #if defined(TARGET_SPARC)
2159 #define MMAP_SHIFT 12
2160 #else
2161 #define MMAP_SHIFT TARGET_PAGE_BITS
2162 #endif
2163         ret = get_errno(target_mmap(arg1, arg2, arg3,
2164                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2165                                     arg5,
2166                                     arg6 << MMAP_SHIFT));
2167         break;
2168     case TARGET_NR_munmap:
2169         ret = get_errno(target_munmap(arg1, arg2));
2170         break;
2171     case TARGET_NR_mprotect:
2172         ret = get_errno(target_mprotect(arg1, arg2, arg3));
2173         break;
2174     case TARGET_NR_mremap:
2175         ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2176         break;
2177     case TARGET_NR_msync:
2178         ret = get_errno(msync((void *)arg1, arg2, arg3));
2179         break;
2180     case TARGET_NR_mlock:
2181         ret = get_errno(mlock((void *)arg1, arg2));
2182         break;
2183     case TARGET_NR_munlock:
2184         ret = get_errno(munlock((void *)arg1, arg2));
2185         break;
2186     case TARGET_NR_mlockall:
2187         ret = get_errno(mlockall(arg1));
2188         break;
2189     case TARGET_NR_munlockall:
2190         ret = get_errno(munlockall());
2191         break;
2192     case TARGET_NR_truncate:
2193         ret = get_errno(truncate((const char *)arg1, arg2));
2194         break;
2195     case TARGET_NR_ftruncate:
2196         ret = get_errno(ftruncate(arg1, arg2));
2197         break;
2198     case TARGET_NR_fchmod:
2199         ret = get_errno(fchmod(arg1, arg2));
2200         break;
2201     case TARGET_NR_getpriority:
2202         ret = get_errno(getpriority(arg1, arg2));
2203         break;
2204     case TARGET_NR_setpriority:
2205         ret = get_errno(setpriority(arg1, arg2, arg3));
2206         break;
2207 #ifdef TARGET_NR_profil
2208     case TARGET_NR_profil:
2209         goto unimplemented;
2210 #endif
2211     case TARGET_NR_statfs:
2212         stfs = (void *)arg2;
2213         ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2214     convert_statfs:
2215         if (!is_error(ret)) {
2216             tswap32s(&stfs->f_type);
2217             tswap32s(&stfs->f_bsize);
2218             tswap32s(&stfs->f_blocks);
2219             tswap32s(&stfs->f_bfree);
2220             tswap32s(&stfs->f_bavail);
2221             tswap32s(&stfs->f_files);
2222             tswap32s(&stfs->f_ffree);
2223             tswap32s(&stfs->f_fsid.val[0]);
2224             tswap32s(&stfs->f_fsid.val[1]);
2225             tswap32s(&stfs->f_namelen);
2226         }
2227         break;
2228     case TARGET_NR_fstatfs:
2229         stfs = (void *)arg2;
2230         ret = get_errno(sys_fstatfs(arg1, stfs));
2231         goto convert_statfs;
2232 #ifdef TARGET_NR_ioperm
2233     case TARGET_NR_ioperm:
2234         goto unimplemented;
2235 #endif
2236     case TARGET_NR_socketcall:
2237         ret = do_socketcall(arg1, (int32_t *)arg2);
2238         break;
2239     case TARGET_NR_syslog:
2240         goto unimplemented;
2241     case TARGET_NR_setitimer:
2242         {
2243             struct target_itimerval *target_value = (void *)arg2;
2244             struct target_itimerval *target_ovalue = (void *)arg3;
2245             struct itimerval value, ovalue, *pvalue;
2246
2247             if (target_value) {
2248                 pvalue = &value;
2249                 target_to_host_timeval(&pvalue->it_interval,
2250                                        &target_value->it_interval);
2251                 target_to_host_timeval(&pvalue->it_value,
2252                                        &target_value->it_value);
2253             } else {
2254                 pvalue = NULL;
2255             }
2256             ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2257             if (!is_error(ret) && target_ovalue) {
2258                 host_to_target_timeval(&target_ovalue->it_interval,
2259                                        &ovalue.it_interval);
2260                 host_to_target_timeval(&target_ovalue->it_value,
2261                                        &ovalue.it_value);
2262             }
2263         }
2264         break;
2265     case TARGET_NR_getitimer:
2266         {
2267             struct target_itimerval *target_value = (void *)arg2;
2268             struct itimerval value;
2269
2270             ret = get_errno(getitimer(arg1, &value));
2271             if (!is_error(ret) && target_value) {
2272                 host_to_target_timeval(&target_value->it_interval,
2273                                        &value.it_interval);
2274                 host_to_target_timeval(&target_value->it_value,
2275                                        &value.it_value);
2276             }
2277         }
2278         break;
2279     case TARGET_NR_stat:
2280         ret = get_errno(stat(path((const char *)arg1), &st));
2281         goto do_stat;
2282     case TARGET_NR_lstat:
2283         ret = get_errno(lstat(path((const char *)arg1), &st));
2284         goto do_stat;
2285     case TARGET_NR_fstat:
2286         {
2287             ret = get_errno(fstat(arg1, &st));
2288         do_stat:
2289             if (!is_error(ret)) {
2290                 struct target_stat *target_st = (void *)arg2;
2291                 target_st->st_dev = tswap16(st.st_dev);
2292                 target_st->st_ino = tswapl(st.st_ino);
2293 #if defined(TARGET_PPC)
2294                 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2295                 target_st->st_uid = tswap32(st.st_uid);
2296                 target_st->st_gid = tswap32(st.st_gid);
2297 #else
2298                 target_st->st_mode = tswap16(st.st_mode);
2299                 target_st->st_uid = tswap16(st.st_uid);
2300                 target_st->st_gid = tswap16(st.st_gid);
2301 #endif
2302                 target_st->st_nlink = tswap16(st.st_nlink);
2303                 target_st->st_rdev = tswap16(st.st_rdev);
2304                 target_st->st_size = tswapl(st.st_size);
2305                 target_st->st_blksize = tswapl(st.st_blksize);
2306                 target_st->st_blocks = tswapl(st.st_blocks);
2307                 target_st->target_st_atime = tswapl(st.st_atime);
2308                 target_st->target_st_mtime = tswapl(st.st_mtime);
2309                 target_st->target_st_ctime = tswapl(st.st_ctime);
2310             }
2311         }
2312         break;
2313 #ifdef TARGET_NR_olduname
2314     case TARGET_NR_olduname:
2315         goto unimplemented;
2316 #endif
2317 #ifdef TARGET_NR_iopl
2318     case TARGET_NR_iopl:
2319         goto unimplemented;
2320 #endif
2321     case TARGET_NR_vhangup:
2322         ret = get_errno(vhangup());
2323         break;
2324 #ifdef TARGET_NR_idle
2325     case TARGET_NR_idle:
2326         goto unimplemented;
2327 #endif
2328     case TARGET_NR_wait4:
2329         {
2330             int status;
2331             target_long *status_ptr = (void *)arg2;
2332             struct rusage rusage, *rusage_ptr;
2333             struct target_rusage *target_rusage = (void *)arg4;
2334             if (target_rusage)
2335                 rusage_ptr = &rusage;
2336             else
2337                 rusage_ptr = NULL;
2338             ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2339             if (!is_error(ret)) {
2340                 if (status_ptr)
2341                     *status_ptr = tswap32(status);
2342                 if (target_rusage) {
2343                     host_to_target_rusage(target_rusage, &rusage);
2344                 }
2345             }
2346         }
2347         break;
2348     case TARGET_NR_swapoff:
2349         ret = get_errno(swapoff((const char *)arg1));
2350         break;
2351     case TARGET_NR_sysinfo:
2352         {
2353             struct target_sysinfo *target_value = (void *)arg1;
2354             struct sysinfo value;
2355             ret = get_errno(sysinfo(&value));
2356             if (!is_error(ret) && target_value)
2357             {
2358                 __put_user(value.uptime, &target_value->uptime);
2359                 __put_user(value.loads[0], &target_value->loads[0]);
2360                 __put_user(value.loads[1], &target_value->loads[1]);
2361                 __put_user(value.loads[2], &target_value->loads[2]);
2362                 __put_user(value.totalram, &target_value->totalram);
2363                 __put_user(value.freeram, &target_value->freeram);
2364                 __put_user(value.sharedram, &target_value->sharedram);
2365                 __put_user(value.bufferram, &target_value->bufferram);
2366                 __put_user(value.totalswap, &target_value->totalswap);
2367                 __put_user(value.freeswap, &target_value->freeswap);
2368                 __put_user(value.procs, &target_value->procs);
2369                 __put_user(value.totalhigh, &target_value->totalhigh);
2370                 __put_user(value.freehigh, &target_value->freehigh);
2371                 __put_user(value.mem_unit, &target_value->mem_unit);
2372             }
2373         }
2374         break;
2375     case TARGET_NR_ipc:
2376         ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2377         break;
2378     case TARGET_NR_fsync:
2379         ret = get_errno(fsync(arg1));
2380         break;
2381     case TARGET_NR_clone:
2382         ret = get_errno(do_fork(cpu_env, arg1, arg2));
2383         break;
2384 #ifdef __NR_exit_group
2385         /* new thread calls */
2386     case TARGET_NR_exit_group:
2387         ret = get_errno(exit_group(arg1));
2388         break;
2389 #endif
2390     case TARGET_NR_setdomainname:
2391         ret = get_errno(setdomainname((const char *)arg1, arg2));
2392         break;
2393     case TARGET_NR_uname:
2394         /* no need to transcode because we use the linux syscall */
2395         {
2396             struct new_utsname * buf;
2397
2398             buf = (struct new_utsname *)arg1;
2399             ret = get_errno(sys_uname(buf));
2400             if (!is_error(ret)) {
2401                 /* Overrite the native machine name with whatever is being
2402                    emulated. */
2403                 strcpy (buf->machine, UNAME_MACHINE);
2404             }
2405         }
2406         ret = get_errno(sys_uname((struct new_utsname *)arg1));
2407         break;
2408 #ifdef TARGET_I386
2409     case TARGET_NR_modify_ldt:
2410         ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2411         break;
2412     case TARGET_NR_vm86old:
2413         goto unimplemented;
2414     case TARGET_NR_vm86:
2415         ret = do_vm86(cpu_env, arg1, (void *)arg2);
2416         break;
2417 #endif
2418     case TARGET_NR_adjtimex:
2419         goto unimplemented;
2420     case TARGET_NR_create_module:
2421     case TARGET_NR_init_module:
2422     case TARGET_NR_delete_module:
2423     case TARGET_NR_get_kernel_syms:
2424         goto unimplemented;
2425     case TARGET_NR_quotactl:
2426         goto unimplemented;
2427     case TARGET_NR_getpgid:
2428         ret = get_errno(getpgid(arg1));
2429         break;
2430     case TARGET_NR_fchdir:
2431         ret = get_errno(fchdir(arg1));
2432         break;
2433     case TARGET_NR_bdflush:
2434         goto unimplemented;
2435     case TARGET_NR_sysfs:
2436         goto unimplemented;
2437     case TARGET_NR_personality:
2438         ret = get_errno(personality(arg1));
2439         break;
2440     case TARGET_NR_afs_syscall:
2441         goto unimplemented;
2442     case TARGET_NR__llseek:
2443         {
2444 #if defined (__x86_64__)
2445             ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2446             *(int64_t *)arg4 = ret;
2447 #else
2448             int64_t res;
2449             ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2450             *(int64_t *)arg4 = tswap64(res);
2451 #endif
2452         }
2453         break;
2454     case TARGET_NR_getdents:
2455 #if TARGET_LONG_SIZE != 4
2456 #error not supported
2457 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2458         {
2459             struct target_dirent *target_dirp = (void *)arg2;
2460             struct dirent *dirp;
2461             long count = arg3;
2462
2463             dirp = malloc(count);
2464             if (!dirp)
2465                 return -ENOMEM;
2466
2467             ret = get_errno(sys_getdents(arg1, dirp, count));
2468             if (!is_error(ret)) {
2469                 struct dirent *de;
2470                 struct target_dirent *tde;
2471                 int len = ret;
2472                 int reclen, treclen;
2473                 int count1, tnamelen;
2474
2475                 count1 = 0;
2476                 de = dirp;
2477                 tde = target_dirp;
2478                 while (len > 0) {
2479                     reclen = de->d_reclen;
2480                     treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2481                     tde->d_reclen = tswap16(treclen);
2482                     tde->d_ino = tswapl(de->d_ino);
2483                     tde->d_off = tswapl(de->d_off);
2484                     tnamelen = treclen - (2 * sizeof(target_long) + 2);
2485                     if (tnamelen > 256)
2486                         tnamelen = 256;
2487                     strncpy(tde->d_name, de->d_name, tnamelen);
2488                     de = (struct dirent *)((char *)de + reclen);
2489                     len -= reclen;
2490                     tde = (struct dirent *)((char *)tde + treclen);
2491                     count1 += treclen;
2492                 }
2493                 ret = count1;
2494             }
2495             free(dirp);
2496         }
2497 #else
2498         {
2499             struct dirent *dirp = (void *)arg2;
2500             long count = arg3;
2501
2502             ret = get_errno(sys_getdents(arg1, dirp, count));
2503             if (!is_error(ret)) {
2504                 struct dirent *de;
2505                 int len = ret;
2506                 int reclen;
2507                 de = dirp;
2508                 while (len > 0) {
2509                     reclen = de->d_reclen;
2510                     if (reclen > len)
2511                         break;
2512                     de->d_reclen = tswap16(reclen);
2513                     tswapls(&de->d_ino);
2514                     tswapls(&de->d_off);
2515                     de = (struct dirent *)((char *)de + reclen);
2516                     len -= reclen;
2517                 }
2518             }
2519         }
2520 #endif
2521         break;
2522 #ifdef TARGET_NR_getdents64
2523     case TARGET_NR_getdents64:
2524         {
2525             struct dirent64 *dirp = (void *)arg2;
2526             long count = arg3;
2527             ret = get_errno(sys_getdents64(arg1, dirp, count));
2528             if (!is_error(ret)) {
2529                 struct dirent64 *de;
2530                 int len = ret;
2531                 int reclen;
2532                 de = dirp;
2533                 while (len > 0) {
2534                     reclen = de->d_reclen;
2535                     if (reclen > len)
2536                         break;
2537                     de->d_reclen = tswap16(reclen);
2538                     tswap64s(&de->d_ino);
2539                     tswap64s(&de->d_off);
2540                     de = (struct dirent64 *)((char *)de + reclen);
2541                     len -= reclen;
2542                 }
2543             }
2544         }
2545         break;
2546 #endif /* TARGET_NR_getdents64 */
2547     case TARGET_NR__newselect:
2548         ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2549                         (void *)arg5);
2550         break;
2551     case TARGET_NR_poll:
2552         {
2553             struct target_pollfd *target_pfd = (void *)arg1;
2554             unsigned int nfds = arg2;
2555             int timeout = arg3;
2556             struct pollfd *pfd;
2557             unsigned int i;
2558
2559             pfd = alloca(sizeof(struct pollfd) * nfds);
2560             for(i = 0; i < nfds; i++) {
2561                 pfd[i].fd = tswap32(target_pfd[i].fd);
2562                 pfd[i].events = tswap16(target_pfd[i].events);
2563             }
2564             ret = get_errno(poll(pfd, nfds, timeout));
2565             if (!is_error(ret)) {
2566                 for(i = 0; i < nfds; i++) {
2567                     target_pfd[i].revents = tswap16(pfd[i].revents);
2568                 }
2569             }
2570         }
2571         break;
2572     case TARGET_NR_flock:
2573         /* NOTE: the flock constant seems to be the same for every
2574            Linux platform */
2575         ret = get_errno(flock(arg1, arg2));
2576         break;
2577     case TARGET_NR_readv:
2578         {
2579             int count = arg3;
2580             int i;
2581             struct iovec *vec;
2582             struct target_iovec *target_vec = (void *)arg2;
2583
2584             vec = alloca(count * sizeof(struct iovec));
2585             for(i = 0;i < count; i++) {
2586                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2587                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2588             }
2589             ret = get_errno(readv(arg1, vec, count));
2590         }
2591         break;
2592     case TARGET_NR_writev:
2593         {
2594             int count = arg3;
2595             int i;
2596             struct iovec *vec;
2597             struct target_iovec *target_vec = (void *)arg2;
2598
2599             vec = alloca(count * sizeof(struct iovec));
2600             for(i = 0;i < count; i++) {
2601                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2602                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2603             }
2604             ret = get_errno(writev(arg1, vec, count));
2605         }
2606         break;
2607     case TARGET_NR_getsid:
2608         ret = get_errno(getsid(arg1));
2609         break;
2610     case TARGET_NR_fdatasync:
2611         ret = get_errno(fdatasync(arg1));
2612         break;
2613     case TARGET_NR__sysctl:
2614         /* We don't implement this, but ENODIR is always a safe
2615            return value. */
2616         return -ENOTDIR;
2617     case TARGET_NR_sched_setparam:
2618         {
2619             struct sched_param *target_schp = (void *)arg2;
2620             struct sched_param schp;
2621             schp.sched_priority = tswap32(target_schp->sched_priority);
2622             ret = get_errno(sched_setparam(arg1, &schp));
2623         }
2624         break;
2625     case TARGET_NR_sched_getparam:
2626         {
2627             struct sched_param *target_schp = (void *)arg2;
2628             struct sched_param schp;
2629             ret = get_errno(sched_getparam(arg1, &schp));
2630             if (!is_error(ret)) {
2631                 target_schp->sched_priority = tswap32(schp.sched_priority);
2632             }
2633         }
2634         break;
2635     case TARGET_NR_sched_setscheduler:
2636         {
2637             struct sched_param *target_schp = (void *)arg3;
2638             struct sched_param schp;
2639             schp.sched_priority = tswap32(target_schp->sched_priority);
2640             ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2641         }
2642         break;
2643     case TARGET_NR_sched_getscheduler:
2644         ret = get_errno(sched_getscheduler(arg1));
2645         break;
2646     case TARGET_NR_sched_yield:
2647         ret = get_errno(sched_yield());
2648         break;
2649     case TARGET_NR_sched_get_priority_max:
2650         ret = get_errno(sched_get_priority_max(arg1));
2651         break;
2652     case TARGET_NR_sched_get_priority_min:
2653         ret = get_errno(sched_get_priority_min(arg1));
2654         break;
2655     case TARGET_NR_sched_rr_get_interval:
2656         {
2657             struct target_timespec *target_ts = (void *)arg2;
2658             struct timespec ts;
2659             ret = get_errno(sched_rr_get_interval(arg1, &ts));
2660             if (!is_error(ret)) {
2661                 target_ts->tv_sec = tswapl(ts.tv_sec);
2662                 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2663             }
2664         }
2665         break;
2666     case TARGET_NR_nanosleep:
2667         {
2668             struct target_timespec *target_req = (void *)arg1;
2669             struct target_timespec *target_rem = (void *)arg2;
2670             struct timespec req, rem;
2671             req.tv_sec = tswapl(target_req->tv_sec);
2672             req.tv_nsec = tswapl(target_req->tv_nsec);
2673             ret = get_errno(nanosleep(&req, &rem));
2674             if (is_error(ret) && target_rem) {
2675                 target_rem->tv_sec = tswapl(rem.tv_sec);
2676                 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2677             }
2678         }
2679         break;
2680     case TARGET_NR_query_module:
2681         goto unimplemented;
2682     case TARGET_NR_nfsservctl:
2683         goto unimplemented;
2684     case TARGET_NR_prctl:
2685         goto unimplemented;
2686 #ifdef TARGET_NR_pread
2687     case TARGET_NR_pread:
2688         page_unprotect_range((void *)arg2, arg3);
2689         ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2690         break;
2691     case TARGET_NR_pwrite:
2692         ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2693         break;
2694 #endif
2695     case TARGET_NR_getcwd:
2696         ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2697         break;
2698     case TARGET_NR_capget:
2699         goto unimplemented;
2700     case TARGET_NR_capset:
2701         goto unimplemented;
2702     case TARGET_NR_sigaltstack:
2703         goto unimplemented;
2704     case TARGET_NR_sendfile:
2705         goto unimplemented;
2706 #ifdef TARGET_NR_getpmsg
2707     case TARGET_NR_getpmsg:
2708         goto unimplemented;
2709 #endif
2710 #ifdef TARGET_NR_putpmsg
2711     case TARGET_NR_putpmsg:
2712         goto unimplemented;
2713 #endif
2714     case TARGET_NR_vfork:
2715         ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2716         break;
2717 #ifdef TARGET_NR_ugetrlimit
2718     case TARGET_NR_ugetrlimit:
2719     {
2720         struct rlimit rlim;
2721         ret = get_errno(getrlimit(arg1, &rlim));
2722         if (!is_error(ret)) {
2723             struct target_rlimit *target_rlim = (void *)arg2;
2724             target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2725             target_rlim->rlim_max = tswapl(rlim.rlim_max);
2726         }
2727         break;
2728     }
2729 #endif
2730     case TARGET_NR_truncate64:
2731         goto unimplemented;
2732     case TARGET_NR_ftruncate64:
2733         goto unimplemented;
2734     case TARGET_NR_stat64:
2735         ret = get_errno(stat(path((const char *)arg1), &st));
2736         goto do_stat64;
2737     case TARGET_NR_lstat64:
2738         ret = get_errno(lstat(path((const char *)arg1), &st));
2739         goto do_stat64;
2740     case TARGET_NR_fstat64:
2741         {
2742             ret = get_errno(fstat(arg1, &st));
2743         do_stat64:
2744             if (!is_error(ret)) {
2745                 struct target_stat64 *target_st = (void *)arg2;
2746                 memset(target_st, 0, sizeof(struct target_stat64));
2747                 put_user(st.st_dev, &target_st->st_dev);
2748                 put_user(st.st_ino, &target_st->st_ino);
2749 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2750                 put_user(st.st_ino, &target_st->__st_ino);
2751 #endif
2752                 put_user(st.st_mode, &target_st->st_mode);
2753                 put_user(st.st_nlink, &target_st->st_nlink);
2754                 put_user(st.st_uid, &target_st->st_uid);
2755                 put_user(st.st_gid, &target_st->st_gid);
2756                 put_user(st.st_rdev, &target_st->st_rdev);
2757                 /* XXX: better use of kernel struct */
2758                 put_user(st.st_size, &target_st->st_size);
2759                 put_user(st.st_blksize, &target_st->st_blksize);
2760                 put_user(st.st_blocks, &target_st->st_blocks);
2761                 put_user(st.st_atime, &target_st->target_st_atime);
2762                 put_user(st.st_mtime, &target_st->target_st_mtime);
2763                 put_user(st.st_ctime, &target_st->target_st_ctime);
2764             }
2765         }
2766         break;
2767
2768 #ifdef USE_UID16
2769     case TARGET_NR_lchown:
2770         ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2771         break;
2772     case TARGET_NR_getuid:
2773         ret = get_errno(high2lowuid(getuid()));
2774         break;
2775     case TARGET_NR_getgid:
2776         ret = get_errno(high2lowgid(getgid()));
2777         break;
2778     case TARGET_NR_geteuid:
2779         ret = get_errno(high2lowuid(geteuid()));
2780         break;
2781     case TARGET_NR_getegid:
2782         ret = get_errno(high2lowgid(getegid()));
2783         break;
2784     case TARGET_NR_setreuid:
2785         ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2786         break;
2787     case TARGET_NR_setregid:
2788         ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2789         break;
2790     case TARGET_NR_getgroups:
2791         {
2792             int gidsetsize = arg1;
2793             uint16_t *target_grouplist = (void *)arg2;
2794             gid_t *grouplist;
2795             int i;
2796
2797             grouplist = alloca(gidsetsize * sizeof(gid_t));
2798             ret = get_errno(getgroups(gidsetsize, grouplist));
2799             if (!is_error(ret)) {
2800                 for(i = 0;i < gidsetsize; i++)
2801                     target_grouplist[i] = tswap16(grouplist[i]);
2802             }
2803         }
2804         break;
2805     case TARGET_NR_setgroups:
2806         {
2807             int gidsetsize = arg1;
2808             uint16_t *target_grouplist = (void *)arg2;
2809             gid_t *grouplist;
2810             int i;
2811
2812             grouplist = alloca(gidsetsize * sizeof(gid_t));
2813             for(i = 0;i < gidsetsize; i++)
2814                 grouplist[i] = tswap16(target_grouplist[i]);
2815             ret = get_errno(setgroups(gidsetsize, grouplist));
2816         }
2817         break;
2818     case TARGET_NR_fchown:
2819         ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2820         break;
2821 #ifdef TARGET_NR_setresuid
2822     case TARGET_NR_setresuid:
2823         ret = get_errno(setresuid(low2highuid(arg1),
2824                                   low2highuid(arg2),
2825                                   low2highuid(arg3)));
2826         break;
2827 #endif
2828 #ifdef TARGET_NR_getresuid
2829     case TARGET_NR_getresuid:
2830         {
2831             int ruid, euid, suid;
2832             ret = get_errno(getresuid(&ruid, &euid, &suid));
2833             if (!is_error(ret)) {
2834                 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2835                 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2836                 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2837             }
2838         }
2839         break;
2840 #endif
2841 #ifdef TARGET_NR_getresgid
2842     case TARGET_NR_setresgid:
2843         ret = get_errno(setresgid(low2highgid(arg1),
2844                                   low2highgid(arg2),
2845                                   low2highgid(arg3)));
2846         break;
2847 #endif
2848 #ifdef TARGET_NR_getresgid
2849     case TARGET_NR_getresgid:
2850         {
2851             int rgid, egid, sgid;
2852             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2853             if (!is_error(ret)) {
2854                 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2855                 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2856                 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2857             }
2858         }
2859         break;
2860 #endif
2861     case TARGET_NR_chown:
2862         ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2863         break;
2864     case TARGET_NR_setuid:
2865         ret = get_errno(setuid(low2highuid(arg1)));
2866         break;
2867     case TARGET_NR_setgid:
2868         ret = get_errno(setgid(low2highgid(arg1)));
2869         break;
2870     case TARGET_NR_setfsuid:
2871         ret = get_errno(setfsuid(arg1));
2872         break;
2873     case TARGET_NR_setfsgid:
2874         ret = get_errno(setfsgid(arg1));
2875         break;
2876 #endif /* USE_UID16 */
2877
2878     case TARGET_NR_lchown32:
2879         ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2880         break;
2881     case TARGET_NR_getuid32:
2882         ret = get_errno(getuid());
2883         break;
2884     case TARGET_NR_getgid32:
2885         ret = get_errno(getgid());
2886         break;
2887     case TARGET_NR_geteuid32:
2888         ret = get_errno(geteuid());
2889         break;
2890     case TARGET_NR_getegid32:
2891         ret = get_errno(getegid());
2892         break;
2893     case TARGET_NR_setreuid32:
2894         ret = get_errno(setreuid(arg1, arg2));
2895         break;
2896     case TARGET_NR_setregid32:
2897         ret = get_errno(setregid(arg1, arg2));
2898         break;
2899     case TARGET_NR_getgroups32:
2900         goto unimplemented;
2901     case TARGET_NR_setgroups32:
2902         goto unimplemented;
2903     case TARGET_NR_fchown32:
2904         ret = get_errno(fchown(arg1, arg2, arg3));
2905         break;
2906     case TARGET_NR_setresuid32:
2907         ret = get_errno(setresuid(arg1, arg2, arg3));
2908         break;
2909     case TARGET_NR_getresuid32:
2910         {
2911             int ruid, euid, suid;
2912             ret = get_errno(getresuid(&ruid, &euid, &suid));
2913             if (!is_error(ret)) {
2914                 *(uint32_t *)arg1 = tswap32(ruid);
2915                 *(uint32_t *)arg2 = tswap32(euid);
2916                 *(uint32_t *)arg3 = tswap32(suid);
2917             }
2918         }
2919         break;
2920     case TARGET_NR_setresgid32:
2921         ret = get_errno(setresgid(arg1, arg2, arg3));
2922         break;
2923     case TARGET_NR_getresgid32:
2924         {
2925             int rgid, egid, sgid;
2926             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2927             if (!is_error(ret)) {
2928                 *(uint32_t *)arg1 = tswap32(rgid);
2929                 *(uint32_t *)arg2 = tswap32(egid);
2930                 *(uint32_t *)arg3 = tswap32(sgid);
2931             }
2932         }
2933         break;
2934     case TARGET_NR_chown32:
2935         ret = get_errno(chown((const char *)arg1, arg2, arg3));
2936         break;
2937     case TARGET_NR_setuid32:
2938         ret = get_errno(setuid(arg1));
2939         break;
2940     case TARGET_NR_setgid32:
2941         ret = get_errno(setgid(arg1));
2942         break;
2943     case TARGET_NR_setfsuid32:
2944         ret = get_errno(setfsuid(arg1));
2945         break;
2946     case TARGET_NR_setfsgid32:
2947         ret = get_errno(setfsgid(arg1));
2948         break;
2949
2950     case TARGET_NR_pivot_root:
2951         goto unimplemented;
2952 #ifdef TARGET_NR_mincore
2953     case TARGET_NR_mincore:
2954         goto unimplemented;
2955 #endif
2956 #ifdef TARGET_NR_madvise
2957     case TARGET_NR_madvise:
2958         goto unimplemented;
2959 #endif
2960 #if TARGET_LONG_BITS == 32
2961     case TARGET_NR_fcntl64:
2962     {
2963         struct flock64 fl;
2964         struct target_flock64 *target_fl = (void *)arg3;
2965
2966         switch(arg2) {
2967         case F_GETLK64:
2968             ret = get_errno(fcntl(arg1, arg2, &fl));
2969             if (ret == 0) {
2970                 target_fl->l_type = tswap16(fl.l_type);
2971                 target_fl->l_whence = tswap16(fl.l_whence);
2972                 target_fl->l_start = tswap64(fl.l_start);
2973                 target_fl->l_len = tswap64(fl.l_len);
2974                 target_fl->l_pid = tswapl(fl.l_pid);
2975             }
2976             break;
2977
2978         case F_SETLK64:
2979         case F_SETLKW64:
2980             fl.l_type = tswap16(target_fl->l_type);
2981             fl.l_whence = tswap16(target_fl->l_whence);
2982             fl.l_start = tswap64(target_fl->l_start);
2983             fl.l_len = tswap64(target_fl->l_len);
2984             fl.l_pid = tswapl(target_fl->l_pid);
2985             ret = get_errno(fcntl(arg1, arg2, &fl));
2986             break;
2987         default:
2988             ret = get_errno(do_fcntl(arg1, arg2, arg3));
2989             break;
2990         }
2991         break;
2992     }
2993 #endif
2994 #ifdef TARGET_NR_security
2995     case TARGET_NR_security:
2996         goto unimplemented;
2997 #endif
2998 #ifdef TARGET_NR_getpagesize
2999     case TARGET_NR_getpagesize:
3000         ret = TARGET_PAGE_SIZE;
3001         break;
3002 #endif
3003     case TARGET_NR_gettid:
3004         ret = get_errno(gettid());
3005         break;
3006     case TARGET_NR_readahead:
3007         goto unimplemented;
3008 #ifdef TARGET_NR_setxattr
3009     case TARGET_NR_setxattr:
3010     case TARGET_NR_lsetxattr:
3011     case TARGET_NR_fsetxattr:
3012     case TARGET_NR_getxattr:
3013     case TARGET_NR_lgetxattr:
3014     case TARGET_NR_fgetxattr:
3015     case TARGET_NR_listxattr:
3016     case TARGET_NR_llistxattr:
3017     case TARGET_NR_flistxattr:
3018     case TARGET_NR_removexattr:
3019     case TARGET_NR_lremovexattr:
3020     case TARGET_NR_fremovexattr:
3021         goto unimplemented_nowarn;
3022 #endif
3023 #ifdef TARGET_NR_set_thread_area
3024     case TARGET_NR_set_thread_area:
3025     case TARGET_NR_get_thread_area:
3026         goto unimplemented_nowarn;
3027 #endif
3028     default:
3029     unimplemented:
3030         gemu_log("qemu: Unsupported syscall: %d\n", num);
3031     unimplemented_nowarn:
3032         ret = -ENOSYS;
3033         break;
3034     }
3035  fail:
3036 #ifdef DEBUG
3037     gemu_log(" = %ld\n", ret);
3038 #endif
3039     return ret;
3040 }
3041