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

   1 /*
   2  *  Linux syscalls
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22 #include <stdarg.h>
  23 #include <string.h>
  24 #include <elf.h>
  25 #include <endian.h>
  26 #include <errno.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29 #include <time.h>
  30 #include <sys/types.h>
  31 #include <sys/wait.h>
  32 #include <sys/time.h>
  33 #include <sys/stat.h>
  34 #include <sys/mount.h>
  35 #include <sys/resource.h>
  36 #include <sys/mman.h>
  37 #include <sys/swap.h>
  38 #include <signal.h>
  39 #include <sched.h>
  40 #include <sys/socket.h>
  41 #include <sys/uio.h>
  42 #include <sys/poll.h>
  43 #include <sys/times.h>
  44 #include <sys/shm.h>
  45 #include <utime.h>
  46 #include <sys/sysinfo.h>
  47 //#include <sys/user.h>
  48 #include <netinet/ip.h>
  49 #include <netinet/tcp.h>
  50
  51 #define termios host_termios
  52 #define winsize host_winsize
  53 #define termio host_termio
  54 #define sgttyb host_sgttyb /* same as target */
  55 #define tchars host_tchars /* same as target */
  56 #define ltchars host_ltchars /* same as target */
  57
  58 #include <linux/termios.h>
  59 #include <linux/unistd.h>
  60 #include <linux/utsname.h>
  61 #include <linux/cdrom.h>
  62 #include <linux/hdreg.h>
  63 #include <linux/soundcard.h>
  64 #include <linux/dirent.h>
  65 #include <linux/kd.h>
  66
  67 #include "qemu.h"
  68
  69 //#define DEBUG
  70
  71 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
  72 /* 16 bit uid wrappers emulation */
  73 #define USE_UID16
  74 #endif
  75
  76 //#include <linux/msdos_fs.h>
  77 #define VFAT_IOCTL_READDIR_BOTH         _IOR('r', 1, struct dirent [2])
  78 #define VFAT_IOCTL_READDIR_SHORT        _IOR('r', 2, struct dirent [2])
  79
  80
  81 #if defined(__powerpc__)
  82 #undef __syscall_nr
  83 #undef __sc_loadargs_0
  84 #undef __sc_loadargs_1
  85 #undef __sc_loadargs_2
  86 #undef __sc_loadargs_3
  87 #undef __sc_loadargs_4
  88 #undef __sc_loadargs_5
  89 #undef __sc_asm_input_0
  90 #undef __sc_asm_input_1
  91 #undef __sc_asm_input_2
  92 #undef __sc_asm_input_3
  93 #undef __sc_asm_input_4
  94 #undef __sc_asm_input_5
  95 #undef _syscall0
  96 #undef _syscall1
  97 #undef _syscall2
  98 #undef _syscall3
  99 #undef _syscall4
 100 #undef _syscall5
 101
 102 /* need to redefine syscalls as Linux kernel defines are incorrect for
 103    the clobber list */
 104 /* On powerpc a system call basically clobbers the same registers like a
 105  * function call, with the exception of LR (which is needed for the
 106  * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
 107  * an error return status).
 108  */
 109
 110 #define __syscall_nr(nr, type, name, args...)                           \
 111         unsigned long __sc_ret, __sc_err;                               \
 112         {                                                               \
 113                 register unsigned long __sc_0  __asm__ ("r0");          \
 114                 register unsigned long __sc_3  __asm__ ("r3");          \
 115                 register unsigned long __sc_4  __asm__ ("r4");          \
 116                 register unsigned long __sc_5  __asm__ ("r5");          \
 117                 register unsigned long __sc_6  __asm__ ("r6");          \
 118                 register unsigned long __sc_7  __asm__ ("r7");          \
 119                                                                         \
 120                 __sc_loadargs_##nr(name, args);                         \
 121                 __asm__ __volatile__                                    \
 122                         ("sc           \n\t"                            \
 123                          "mfcr %0      "                                \
 124                         : "=&r" (__sc_0),                               \
 125                           "=&r" (__sc_3),  "=&r" (__sc_4),              \
 126                           "=&r" (__sc_5),  "=&r" (__sc_6),              \
 127                           "=&r" (__sc_7)                                \
 128                         : __sc_asm_input_##nr                           \
 129                         : "cr0", "ctr", "memory",                       \
 130                           "r8", "r9", "r10","r11", "r12");              \
 131                 __sc_ret = __sc_3;                                      \
 132                 __sc_err = __sc_0;                                      \
 133         }                                                               \
 134         if (__sc_err & 0x10000000)                                      \
 135         {                                                               \
 136                 errno = __sc_ret;                                       \
 137                 __sc_ret = -1;                                          \
 138         }                                                               \
 139         return (type) __sc_ret
 140
 141 #define __sc_loadargs_0(name, dummy...)                                 \
 142         __sc_0 = __NR_##name
 143 #define __sc_loadargs_1(name, arg1)                                     \
 144         __sc_loadargs_0(name);                                          \
 145         __sc_3 = (unsigned long) (arg1)
 146 #define __sc_loadargs_2(name, arg1, arg2)                               \
 147         __sc_loadargs_1(name, arg1);                                    \
 148         __sc_4 = (unsigned long) (arg2)
 149 #define __sc_loadargs_3(name, arg1, arg2, arg3)                         \
 150         __sc_loadargs_2(name, arg1, arg2);                              \
 151         __sc_5 = (unsigned long) (arg3)
 152 #define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)                   \
 153         __sc_loadargs_3(name, arg1, arg2, arg3);                        \
 154         __sc_6 = (unsigned long) (arg4)
 155 #define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)             \
 156         __sc_loadargs_4(name, arg1, arg2, arg3, arg4);                  \
 157         __sc_7 = (unsigned long) (arg5)
 158
 159 #define __sc_asm_input_0 "0" (__sc_0)
 160 #define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
 161 #define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
 162 #define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
 163 #define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
 164 #define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
 165
 166 #define _syscall0(type,name)                                            \
 167 type name(void)                                                         \
 168 {                                                                       \
 169         __syscall_nr(0, type, name);                                    \
 170 }
 171
 172 #define _syscall1(type,name,type1,arg1)                                 \
 173 type name(type1 arg1)                                                   \
 174 {                                                                       \
 175         __syscall_nr(1, type, name, arg1);                              \
 176 }
 177
 178 #define _syscall2(type,name,type1,arg1,type2,arg2)                      \
 179 type name(type1 arg1, type2 arg2)                                       \
 180 {                                                                       \
 181         __syscall_nr(2, type, name, arg1, arg2);                        \
 182 }
 183
 184 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)           \
 185 type name(type1 arg1, type2 arg2, type3 arg3)                           \
 186 {                                                                       \
 187         __syscall_nr(3, type, name, arg1, arg2, arg3);                  \
 188 }
 189
 190 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
 191 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4)               \
 192 {                                                                       \
 193         __syscall_nr(4, type, name, arg1, arg2, arg3, arg4);            \
 194 }
 195
 196 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
 197 type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)   \
 198 {                                                                       \
 199         __syscall_nr(5, type, name, arg1, arg2, arg3, arg4, arg5);      \
 200 }
 201 #endif
 202
 203 #define __NR_sys_uname __NR_uname
 204 #define __NR_sys_getcwd1 __NR_getcwd
 205 #define __NR_sys_statfs __NR_statfs
 206 #define __NR_sys_fstatfs __NR_fstatfs
 207 #define __NR_sys_getdents __NR_getdents
 208 #define __NR_sys_getdents64 __NR_getdents64
 209 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
 210
 211 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
 212 #define __NR__llseek __NR_lseek
 213 #endif
 214
 215 #ifdef __NR_gettid
 216 _syscall0(int, gettid)
 217 #else
 218 static int gettid(void) {
 219     return -ENOSYS;
 220 }
 221 #endif
 222 _syscall1(int,sys_uname,struct new_utsname *,buf)
 223 _syscall2(int,sys_getcwd1,char *,buf,size_t,size)
 224 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count);
 225 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count);
 226 _syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
 227           loff_t *, res, uint, wh);
 228 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf)
 229 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf)
 230 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
 231 #ifdef __NR_exit_group
 232 _syscall1(int,exit_group,int,error_code)
 233 #endif
 234
 235 extern int personality(int);
 236 extern int flock(int, int);
 237 extern int setfsuid(int);
 238 extern int setfsgid(int);
 239 extern int setresuid(uid_t, uid_t, uid_t);
 240 extern int getresuid(uid_t *, uid_t *, uid_t *);
 241 extern int setresgid(gid_t, gid_t, gid_t);
 242 extern int getresgid(gid_t *, gid_t *, gid_t *);
 243 extern int setgroups(int, gid_t *);
 244
 245 static inline long get_errno(long ret)
 246 {
 247     if (ret == -1)
 248         return -errno;
 249     else
 250         return ret;
 251 }
 252
 253 static inline int is_error(long ret)
 254 {
 255     return (unsigned long)ret >= (unsigned long)(-4096);
 256 }
 257
 258 static char *target_brk;
 259 static char *target_original_brk;
 260
 261 void target_set_brk(char *new_brk)
 262 {
 263     target_brk = new_brk;
 264     target_original_brk = new_brk;
 265 }
 266
 267 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 #ifdef SO_BSDCOMPAT
 581         case SO_BSDCOMPAT:
 582 #endif
 583         case SO_PASSCRED:
 584         case SO_TIMESTAMP:
 585         case SO_RCVLOWAT:
 586         case SO_RCVTIMEO:
 587         case SO_SNDTIMEO:
 588             if (optlen < sizeof(uint32_t))
 589                 return -EINVAL;
 590             if (get_user(val, (uint32_t *)optval))
 591                 return -EFAULT;
 592             ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
 593             break;
 594         default:
 595             goto unimplemented;
 596         }
 597         break;
 598     default:
 599     unimplemented:
 600         gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
 601         ret = -ENOSYS;
 602     }
 603     return ret;
 604 }
 605
 606 static long do_getsockopt(int sockfd, int level, int optname,
 607                           void *optval, socklen_t *optlen)
 608 {
 609     int len, lv, val, ret;
 610
 611     switch(level) {
 612     case SOL_SOCKET:
 613         switch (optname) {
 614         case SO_LINGER:
 615         case SO_RCVTIMEO:
 616         case SO_SNDTIMEO:
 617         case SO_PEERCRED:
 618         case SO_PEERNAME:
 619             /* These don't just return a single integer */
 620             goto unimplemented;
 621         default:
 622             if (get_user(len, optlen))
 623                 return -EFAULT;
 624             if (len < 0)
 625                 return -EINVAL;
 626             lv = sizeof(int);
 627             ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
 628             if (ret < 0)
 629                 return ret;
 630             val = tswap32(val);
 631             if (len > lv)
 632                 len = lv;
 633             if (copy_to_user(optval, &val, len))
 634                 return -EFAULT;
 635             if (put_user(len, optlen))
 636                 return -EFAULT;
 637             break;
 638         }
 639         break;
 640     default:
 641     unimplemented:
 642         gemu_log("getsockopt level=%d optname=%d not yet supported\n",
 643                  level, optname);
 644         ret = -ENOSYS;
 645         break;
 646     }
 647     return ret;
 648 }
 649
 650 static long do_socketcall(int num, int32_t *vptr)
 651 {
 652     long ret;
 653
 654     switch(num) {
 655     case SOCKOP_socket:
 656         {
 657             int domain = tswap32(vptr[0]);
 658             int type = tswap32(vptr[1]);
 659             int protocol = tswap32(vptr[2]);
 660
 661             ret = get_errno(socket(domain, type, protocol));
 662         }
 663         break;
 664     case SOCKOP_bind:
 665         {
 666             int sockfd = tswap32(vptr[0]);
 667             void *target_addr = (void *)tswap32(vptr[1]);
 668             socklen_t addrlen = tswap32(vptr[2]);
 669             void *addr = alloca(addrlen);
 670
 671             target_to_host_sockaddr(addr, target_addr, addrlen);
 672             ret = get_errno(bind(sockfd, addr, addrlen));
 673         }
 674         break;
 675     case SOCKOP_connect:
 676         {
 677             int sockfd = tswap32(vptr[0]);
 678             void *target_addr = (void *)tswap32(vptr[1]);
 679             socklen_t addrlen = tswap32(vptr[2]);
 680             void *addr = alloca(addrlen);
 681
 682             target_to_host_sockaddr(addr, target_addr, addrlen);
 683             ret = get_errno(connect(sockfd, addr, addrlen));
 684         }
 685         break;
 686     case SOCKOP_listen:
 687         {
 688             int sockfd = tswap32(vptr[0]);
 689             int backlog = tswap32(vptr[1]);
 690
 691             ret = get_errno(listen(sockfd, backlog));
 692         }
 693         break;
 694     case SOCKOP_accept:
 695         {
 696             int sockfd = tswap32(vptr[0]);
 697             void *target_addr = (void *)tswap32(vptr[1]);
 698             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 699             socklen_t addrlen = tswap32(*target_addrlen);
 700             void *addr = alloca(addrlen);
 701
 702             ret = get_errno(accept(sockfd, addr, &addrlen));
 703             if (!is_error(ret)) {
 704                 host_to_target_sockaddr(target_addr, addr, addrlen);
 705                 *target_addrlen = tswap32(addrlen);
 706             }
 707         }
 708         break;
 709     case SOCKOP_getsockname:
 710         {
 711             int sockfd = tswap32(vptr[0]);
 712             void *target_addr = (void *)tswap32(vptr[1]);
 713             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 714             socklen_t addrlen = tswap32(*target_addrlen);
 715             void *addr = alloca(addrlen);
 716
 717             ret = get_errno(getsockname(sockfd, addr, &addrlen));
 718             if (!is_error(ret)) {
 719                 host_to_target_sockaddr(target_addr, addr, addrlen);
 720                 *target_addrlen = tswap32(addrlen);
 721             }
 722         }
 723         break;
 724     case SOCKOP_getpeername:
 725         {
 726             int sockfd = tswap32(vptr[0]);
 727             void *target_addr = (void *)tswap32(vptr[1]);
 728             uint32_t *target_addrlen = (void *)tswap32(vptr[2]);
 729             socklen_t addrlen = tswap32(*target_addrlen);
 730             void *addr = alloca(addrlen);
 731
 732             ret = get_errno(getpeername(sockfd, addr, &addrlen));
 733             if (!is_error(ret)) {
 734                 host_to_target_sockaddr(target_addr, addr, addrlen);
 735                 *target_addrlen = tswap32(addrlen);
 736             }
 737         }
 738         break;
 739     case SOCKOP_socketpair:
 740         {
 741             int domain = tswap32(vptr[0]);
 742             int type = tswap32(vptr[1]);
 743             int protocol = tswap32(vptr[2]);
 744             int32_t *target_tab = (void *)tswap32(vptr[3]);
 745             int tab[2];
 746
 747             ret = get_errno(socketpair(domain, type, protocol, tab));
 748             if (!is_error(ret)) {
 749                 target_tab[0] = tswap32(tab[0]);
 750                 target_tab[1] = tswap32(tab[1]);
 751             }
 752         }
 753         break;
 754     case SOCKOP_send:
 755         {
 756             int sockfd = tswap32(vptr[0]);
 757             void *msg = (void *)tswap32(vptr[1]);
 758             size_t len = tswap32(vptr[2]);
 759             int flags = tswap32(vptr[3]);
 760
 761             ret = get_errno(send(sockfd, msg, len, flags));
 762         }
 763         break;
 764     case SOCKOP_recv:
 765         {
 766             int sockfd = tswap32(vptr[0]);
 767             void *msg = (void *)tswap32(vptr[1]);
 768             size_t len = tswap32(vptr[2]);
 769             int flags = tswap32(vptr[3]);
 770
 771             ret = get_errno(recv(sockfd, msg, len, flags));
 772         }
 773         break;
 774     case SOCKOP_sendto:
 775         {
 776             int sockfd = tswap32(vptr[0]);
 777             void *msg = (void *)tswap32(vptr[1]);
 778             size_t len = tswap32(vptr[2]);
 779             int flags = tswap32(vptr[3]);
 780             void *target_addr = (void *)tswap32(vptr[4]);
 781             socklen_t addrlen = tswap32(vptr[5]);
 782             void *addr = alloca(addrlen);
 783
 784             target_to_host_sockaddr(addr, target_addr, addrlen);
 785             ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen));
 786         }
 787         break;
 788     case SOCKOP_recvfrom:
 789         {
 790             int sockfd = tswap32(vptr[0]);
 791             void *msg = (void *)tswap32(vptr[1]);
 792             size_t len = tswap32(vptr[2]);
 793             int flags = tswap32(vptr[3]);
 794             void *target_addr = (void *)tswap32(vptr[4]);
 795             uint32_t *target_addrlen = (void *)tswap32(vptr[5]);
 796             socklen_t addrlen = tswap32(*target_addrlen);
 797             void *addr = alloca(addrlen);
 798
 799             ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen));
 800             if (!is_error(ret)) {
 801                 host_to_target_sockaddr(target_addr, addr, addrlen);
 802                 *target_addrlen = tswap32(addrlen);
 803             }
 804         }
 805         break;
 806     case SOCKOP_shutdown:
 807         {
 808             int sockfd = tswap32(vptr[0]);
 809             int how = tswap32(vptr[1]);
 810
 811             ret = get_errno(shutdown(sockfd, how));
 812         }
 813         break;
 814     case SOCKOP_sendmsg:
 815     case SOCKOP_recvmsg:
 816         {
 817             int fd;
 818             struct target_msghdr *msgp;
 819             struct msghdr msg;
 820             int flags, count, i;
 821             struct iovec *vec;
 822             struct target_iovec *target_vec;
 823
 824             msgp = (void *)tswap32(vptr[1]);
 825             msg.msg_name = (void *)tswapl(msgp->msg_name);
 826             msg.msg_namelen = tswapl(msgp->msg_namelen);
 827             msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
 828             msg.msg_control = alloca(msg.msg_controllen);
 829             msg.msg_flags = tswap32(msgp->msg_flags);
 830
 831             count = tswapl(msgp->msg_iovlen);
 832             vec = alloca(count * sizeof(struct iovec));
 833             target_vec = (void *)tswapl(msgp->msg_iov);
 834             for(i = 0;i < count; i++) {
 835                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
 836                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
 837             }
 838             msg.msg_iovlen = count;
 839             msg.msg_iov = vec;
 840
 841             fd = tswap32(vptr[0]);
 842             flags = tswap32(vptr[2]);
 843             if (num == SOCKOP_sendmsg) {
 844                 target_to_host_cmsg(&msg, msgp);
 845                 ret = get_errno(sendmsg(fd, &msg, flags));
 846             } else {
 847                 ret = get_errno(recvmsg(fd, &msg, flags));
 848                 if (!is_error(ret))
 849                   host_to_target_cmsg(msgp, &msg);
 850             }
 851         }
 852         break;
 853     case SOCKOP_setsockopt:
 854         {
 855             int sockfd = tswap32(vptr[0]);
 856             int level = tswap32(vptr[1]);
 857             int optname = tswap32(vptr[2]);
 858             void *optval = (void *)tswap32(vptr[3]);
 859             socklen_t optlen = tswap32(vptr[4]);
 860
 861             ret = do_setsockopt(sockfd, level, optname, optval, optlen);
 862         }
 863         break;
 864     case SOCKOP_getsockopt:
 865         {
 866             int sockfd = tswap32(vptr[0]);
 867             int level = tswap32(vptr[1]);
 868             int optname = tswap32(vptr[2]);
 869             void *optval = (void *)tswap32(vptr[3]);
 870             uint32_t *poptlen = (void *)tswap32(vptr[4]);
 871
 872             ret = do_getsockopt(sockfd, level, optname, optval, poptlen);
 873         }
 874         break;
 875     default:
 876         gemu_log("Unsupported socketcall: %d\n", num);
 877         ret = -ENOSYS;
 878         break;
 879     }
 880     return ret;
 881 }
 882
 883
 884 #define N_SHM_REGIONS   32
 885
 886 static struct shm_region {
 887     uint32_t    start;
 888     uint32_t    size;
 889 } shm_regions[N_SHM_REGIONS];
 890
 891 static long do_ipc(long call, long first, long second, long third,
 892                    long ptr, long fifth)
 893 {
 894     int version;
 895     long ret = 0;
 896     unsigned long raddr;
 897     struct shmid_ds shm_info;
 898     int i;
 899
 900     version = call >> 16;
 901     call &= 0xffff;
 902
 903     switch (call) {
 904     case IPCOP_shmat:
 905         /* SHM_* flags are the same on all linux platforms */
 906         ret = get_errno((long) shmat(first, (void *) ptr, second));
 907         if (is_error(ret))
 908             break;
 909         raddr = ret;
 910         /* find out the length of the shared memory segment */
 911
 912         ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
 913         if (is_error(ret)) {
 914             /* can't get length, bail out */
 915             shmdt((void *) raddr);
 916             break;
 917         }
 918         page_set_flags(raddr, raddr + shm_info.shm_segsz,
 919                        PAGE_VALID | PAGE_READ |
 920                        ((second & SHM_RDONLY)? 0: PAGE_WRITE));
 921         for (i = 0; i < N_SHM_REGIONS; ++i) {
 922             if (shm_regions[i].start == 0) {
 923                 shm_regions[i].start = raddr;
 924                 shm_regions[i].size = shm_info.shm_segsz;
 925                 break;
 926             }
 927         }
 928         if (put_user(raddr, (uint32_t *)third))
 929             return -EFAULT;
 930         ret = 0;
 931         break;
 932     case IPCOP_shmdt:
 933         for (i = 0; i < N_SHM_REGIONS; ++i) {
 934             if (shm_regions[i].start == ptr) {
 935                 shm_regions[i].start = 0;
 936                 page_set_flags(ptr, shm_regions[i].size, 0);
 937                 break;
 938             }
 939         }
 940         ret = get_errno(shmdt((void *) ptr));
 941         break;
 942
 943     case IPCOP_shmget:
 944         /* IPC_* flag values are the same on all linux platforms */
 945         ret = get_errno(shmget(first, second, third));
 946         break;
 947
 948         /* IPC_* and SHM_* command values are the same on all linux platforms */
 949     case IPCOP_shmctl:
 950         switch(second) {
 951         case IPC_RMID:
 952         case SHM_LOCK:
 953         case SHM_UNLOCK:
 954             ret = get_errno(shmctl(first, second, NULL));
 955             break;
 956         default:
 957             goto unimplemented;
 958         }
 959         break;
 960     default:
 961     unimplemented:
 962         gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version);
 963         ret = -ENOSYS;
 964         break;
 965     }
 966     return ret;
 967 }
 968
 969 /* kernel structure types definitions */
 970 #define IFNAMSIZ        16
 971
 972 #define STRUCT(name, list...) STRUCT_ ## name,
 973 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
 974 enum {
 975 #include "syscall_types.h"
 976 };
 977 #undef STRUCT
 978 #undef STRUCT_SPECIAL
 979
 980 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
 981 #define STRUCT_SPECIAL(name)
 982 #include "syscall_types.h"
 983 #undef STRUCT
 984 #undef STRUCT_SPECIAL
 985
 986 typedef struct IOCTLEntry {
 987     unsigned int target_cmd;
 988     unsigned int host_cmd;
 989     const char *name;
 990     int access;
 991     const argtype arg_type[5];
 992 } IOCTLEntry;
 993
 994 #define IOC_R 0x0001
 995 #define IOC_W 0x0002
 996 #define IOC_RW (IOC_R | IOC_W)
 997
 998 #define MAX_STRUCT_SIZE 4096
 999
1000 IOCTLEntry ioctl_entries[] = {
1001 #define IOCTL(cmd, access, types...) \
1002     { TARGET_ ## cmd, cmd, #cmd, access, { types } },
1003 #include "ioctls.h"
1004     { 0, 0, },
1005 };
1006
1007 static long do_ioctl(long fd, long cmd, long arg)
1008 {
1009     const IOCTLEntry *ie;
1010     const argtype *arg_type;
1011     long ret;
1012     uint8_t buf_temp[MAX_STRUCT_SIZE];
1013
1014     ie = ioctl_entries;
1015     for(;;) {
1016         if (ie->target_cmd == 0) {
1017             gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
1018             return -ENOSYS;
1019         }
1020         if (ie->target_cmd == cmd)
1021             break;
1022         ie++;
1023     }
1024     arg_type = ie->arg_type;
1025 #if defined(DEBUG)
1026     gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
1027 #endif
1028     switch(arg_type[0]) {
1029     case TYPE_NULL:
1030         /* no argument */
1031         ret = get_errno(ioctl(fd, ie->host_cmd));
1032         break;
1033     case TYPE_PTRVOID:
1034     case TYPE_INT:
1035         /* int argment */
1036         ret = get_errno(ioctl(fd, ie->host_cmd, arg));
1037         break;
1038     case TYPE_PTR:
1039         arg_type++;
1040         switch(ie->access) {
1041         case IOC_R:
1042             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1043             if (!is_error(ret)) {
1044                 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1045             }
1046             break;
1047         case IOC_W:
1048             thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1049             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1050             break;
1051         default:
1052         case IOC_RW:
1053             thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
1054             ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
1055             if (!is_error(ret)) {
1056                 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
1057             }
1058             break;
1059         }
1060         break;
1061     default:
1062         gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
1063         ret = -ENOSYS;
1064         break;
1065     }
1066     return ret;
1067 }
1068
1069 bitmask_transtbl iflag_tbl[] = {
1070         { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
1071         { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
1072         { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
1073         { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
1074         { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
1075         { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
1076         { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
1077         { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
1078         { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
1079         { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
1080         { TARGET_IXON, TARGET_IXON, IXON, IXON },
1081         { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
1082         { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
1083         { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
1084         { 0, 0, 0, 0 }
1085 };
1086
1087 bitmask_transtbl oflag_tbl[] = {
1088         { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
1089         { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
1090         { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
1091         { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
1092         { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
1093         { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
1094         { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
1095         { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
1096         { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
1097         { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
1098         { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
1099         { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
1100         { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
1101         { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
1102         { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
1103         { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
1104         { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
1105         { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
1106         { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
1107         { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
1108         { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
1109         { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
1110         { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
1111         { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
1112         { 0, 0, 0, 0 }
1113 };
1114
1115 bitmask_transtbl cflag_tbl[] = {
1116         { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
1117         { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
1118         { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
1119         { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
1120         { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
1121         { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
1122         { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
1123         { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
1124         { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
1125         { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
1126         { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
1127         { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
1128         { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
1129         { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
1130         { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
1131         { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
1132         { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
1133         { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
1134         { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
1135         { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
1136         { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
1137         { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
1138         { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
1139         { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
1140         { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
1141         { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
1142         { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
1143         { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
1144         { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
1145         { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
1146         { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
1147         { 0, 0, 0, 0 }
1148 };
1149
1150 bitmask_transtbl lflag_tbl[] = {
1151         { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
1152         { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
1153         { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
1154         { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
1155         { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
1156         { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
1157         { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
1158         { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
1159         { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
1160         { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
1161         { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
1162         { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
1163         { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
1164         { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
1165         { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
1166         { 0, 0, 0, 0 }
1167 };
1168
1169 static void target_to_host_termios (void *dst, const void *src)
1170 {
1171     struct host_termios *host = dst;
1172     const struct target_termios *target = src;
1173
1174     host->c_iflag =
1175         target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
1176     host->c_oflag =
1177         target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
1178     host->c_cflag =
1179         target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
1180     host->c_lflag =
1181         target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
1182     host->c_line = target->c_line;
1183
1184     host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
1185     host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
1186     host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
1187     host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
1188     host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
1189     host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
1190     host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
1191     host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
1192     host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
1193     host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
1194     host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
1195     host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
1196     host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
1197     host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
1198     host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
1199     host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
1200     host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
1201 }
1202
1203 static void host_to_target_termios (void *dst, const void *src)
1204 {
1205     struct target_termios *target = dst;
1206     const struct host_termios *host = src;
1207
1208     target->c_iflag =
1209         tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
1210     target->c_oflag =
1211         tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
1212     target->c_cflag =
1213         tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
1214     target->c_lflag =
1215         tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
1216     target->c_line = host->c_line;
1217
1218     target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
1219     target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
1220     target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
1221     target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
1222     target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
1223     target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
1224     target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
1225     target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
1226     target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
1227     target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
1228     target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
1229     target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
1230     target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
1231     target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
1232     target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
1233     target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
1234     target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
1235 }
1236
1237 StructEntry struct_termios_def = {
1238     .convert = { host_to_target_termios, target_to_host_termios },
1239     .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
1240     .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
1241 };
1242
1243 static bitmask_transtbl mmap_flags_tbl[] = {
1244         { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
1245         { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
1246         { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
1247         { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
1248         { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
1249         { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
1250         { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
1251         { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
1252         { 0, 0, 0, 0 }
1253 };
1254
1255 static bitmask_transtbl fcntl_flags_tbl[] = {
1256         { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
1257         { TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
1258         { TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
1259         { TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
1260         { TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
1261         { TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
1262         { TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
1263         { TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
1264         { TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
1265         { TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
1266         { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
1267         { TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
1268         { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
1269 #if defined(O_DIRECT)
1270         { TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
1271 #endif
1272         { 0, 0, 0, 0 }
1273 };
1274
1275 #if defined(TARGET_I386)
1276
1277 /* NOTE: there is really one LDT for all the threads */
1278 uint8_t *ldt_table;
1279
1280 static int read_ldt(void *ptr, unsigned long bytecount)
1281 {
1282     int size;
1283
1284     if (!ldt_table)
1285         return 0;
1286     size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
1287     if (size > bytecount)
1288         size = bytecount;
1289     memcpy(ptr, ldt_table, size);
1290     return size;
1291 }
1292
1293 /* XXX: add locking support */
1294 static int write_ldt(CPUX86State *env,
1295                      void *ptr, unsigned long bytecount, int oldmode)
1296 {
1297     struct target_modify_ldt_ldt_s ldt_info;
1298     int seg_32bit, contents, read_exec_only, limit_in_pages;
1299     int seg_not_present, useable;
1300     uint32_t *lp, entry_1, entry_2;
1301
1302     if (bytecount != sizeof(ldt_info))
1303         return -EINVAL;
1304     memcpy(&ldt_info, ptr, sizeof(ldt_info));
1305     tswap32s(&ldt_info.entry_number);
1306     tswapls((long *)&ldt_info.base_addr);
1307     tswap32s(&ldt_info.limit);
1308     tswap32s(&ldt_info.flags);
1309
1310     if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
1311         return -EINVAL;
1312     seg_32bit = ldt_info.flags & 1;
1313     contents = (ldt_info.flags >> 1) & 3;
1314     read_exec_only = (ldt_info.flags >> 3) & 1;
1315     limit_in_pages = (ldt_info.flags >> 4) & 1;
1316     seg_not_present = (ldt_info.flags >> 5) & 1;
1317     useable = (ldt_info.flags >> 6) & 1;
1318
1319     if (contents == 3) {
1320         if (oldmode)
1321             return -EINVAL;
1322         if (seg_not_present == 0)
1323             return -EINVAL;
1324     }
1325     /* allocate the LDT */
1326     if (!ldt_table) {
1327         ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1328         if (!ldt_table)
1329             return -ENOMEM;
1330         memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
1331         env->ldt.base = (long)ldt_table;
1332         env->ldt.limit = 0xffff;
1333     }
1334
1335     /* NOTE: same code as Linux kernel */
1336     /* Allow LDTs to be cleared by the user. */
1337     if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
1338         if (oldmode ||
1339             (contents == 0              &&
1340              read_exec_only == 1        &&
1341              seg_32bit == 0             &&
1342              limit_in_pages == 0        &&
1343              seg_not_present == 1       &&
1344              useable == 0 )) {
1345             entry_1 = 0;
1346             entry_2 = 0;
1347             goto install;
1348         }
1349     }
1350
1351     entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
1352         (ldt_info.limit & 0x0ffff);
1353     entry_2 = (ldt_info.base_addr & 0xff000000) |
1354         ((ldt_info.base_addr & 0x00ff0000) >> 16) |
1355         (ldt_info.limit & 0xf0000) |
1356         ((read_exec_only ^ 1) << 9) |
1357         (contents << 10) |
1358         ((seg_not_present ^ 1) << 15) |
1359         (seg_32bit << 22) |
1360         (limit_in_pages << 23) |
1361         0x7000;
1362     if (!oldmode)
1363         entry_2 |= (useable << 20);
1364
1365     /* Install the new entry ...  */
1366 install:
1367     lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
1368     lp[0] = tswap32(entry_1);
1369     lp[1] = tswap32(entry_2);
1370     return 0;
1371 }
1372
1373 /* specific and weird i386 syscalls */
1374 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount)
1375 {
1376     int ret = -ENOSYS;
1377
1378     switch (func) {
1379     case 0:
1380         ret = read_ldt(ptr, bytecount);
1381         break;
1382     case 1:
1383         ret = write_ldt(env, ptr, bytecount, 1);
1384         break;
1385     case 0x11:
1386         ret = write_ldt(env, ptr, bytecount, 0);
1387         break;
1388     }
1389     return ret;
1390 }
1391
1392 #endif /* defined(TARGET_I386) */
1393
1394 /* this stack is the equivalent of the kernel stack associated with a
1395    thread/process */
1396 #define NEW_STACK_SIZE 8192
1397
1398 static int clone_func(void *arg)
1399 {
1400     CPUState *env = arg;
1401     cpu_loop(env);
1402     /* never exits */
1403     return 0;
1404 }
1405
1406 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
1407 {
1408     int ret;
1409     TaskState *ts;
1410     uint8_t *new_stack;
1411     CPUState *new_env;
1412
1413     if (flags & CLONE_VM) {
1414         ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
1415         memset(ts, 0, sizeof(TaskState));
1416         new_stack = ts->stack;
1417         ts->used = 1;
1418         /* add in task state list */
1419         ts->next = first_task_state;
1420         first_task_state = ts;
1421         /* we create a new CPU instance. */
1422         new_env = cpu_init();
1423         memcpy(new_env, env, sizeof(CPUState));
1424 #if defined(TARGET_I386)
1425         if (!newsp)
1426             newsp = env->regs[R_ESP];
1427         new_env->regs[R_ESP] = newsp;
1428         new_env->regs[R_EAX] = 0;
1429 #elif defined(TARGET_ARM)
1430         if (!newsp)
1431             newsp = env->regs[13];
1432         new_env->regs[13] = newsp;
1433         new_env->regs[0] = 0;
1434 #elif defined(TARGET_SPARC)
1435         printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
1436 #elif defined(TARGET_PPC)
1437         if (!newsp)
1438             newsp = env->gpr[1];
1439         new_env->gpr[1] = newsp;
1440         {
1441             int i;
1442             for (i = 7; i < 32; i++)
1443                 new_env->gpr[i] = 0;
1444         }
1445 #else
1446 #error unsupported target CPU
1447 #endif
1448         new_env->opaque = ts;
1449 #ifdef __ia64__
1450         ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1451 #else
1452         ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
1453 #endif
1454     } else {
1455         /* if no CLONE_VM, we consider it is a fork */
1456         if ((flags & ~CSIGNAL) != 0)
1457             return -EINVAL;
1458         ret = fork();
1459     }
1460     return ret;
1461 }
1462
1463 static long do_fcntl(int fd, int cmd, unsigned long arg)
1464 {
1465     struct flock fl;
1466     struct target_flock *target_fl = (void *)arg;
1467     long ret;
1468
1469     switch(cmd) {
1470     case TARGET_F_GETLK:
1471         ret = fcntl(fd, cmd, &fl);
1472         if (ret == 0) {
1473             target_fl->l_type = tswap16(fl.l_type);
1474             target_fl->l_whence = tswap16(fl.l_whence);
1475             target_fl->l_start = tswapl(fl.l_start);
1476             target_fl->l_len = tswapl(fl.l_len);
1477             target_fl->l_pid = tswapl(fl.l_pid);
1478         }
1479         break;
1480
1481     case TARGET_F_SETLK:
1482     case TARGET_F_SETLKW:
1483         fl.l_type = tswap16(target_fl->l_type);
1484         fl.l_whence = tswap16(target_fl->l_whence);
1485         fl.l_start = tswapl(target_fl->l_start);
1486         fl.l_len = tswapl(target_fl->l_len);
1487         fl.l_pid = tswapl(target_fl->l_pid);
1488         ret = fcntl(fd, cmd, &fl);
1489         break;
1490
1491     case TARGET_F_GETLK64:
1492     case TARGET_F_SETLK64:
1493     case TARGET_F_SETLKW64:
1494         ret = -1;
1495         errno = EINVAL;
1496         break;
1497
1498     case F_GETFL:
1499         ret = fcntl(fd, cmd, arg);
1500         ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
1501         break;
1502
1503     case F_SETFL:
1504         ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl));
1505         break;
1506
1507     default:
1508         ret = fcntl(fd, cmd, arg);
1509         break;
1510     }
1511     return ret;
1512 }
1513
1514 #ifdef USE_UID16
1515
1516 static inline int high2lowuid(int uid)
1517 {
1518     if (uid > 65535)
1519         return 65534;
1520     else
1521         return uid;
1522 }
1523
1524 static inline int high2lowgid(int gid)
1525 {
1526     if (gid > 65535)
1527         return 65534;
1528     else
1529         return gid;
1530 }
1531
1532 static inline int low2highuid(int uid)
1533 {
1534     if ((int16_t)uid == -1)
1535         return -1;
1536     else
1537         return uid;
1538 }
1539
1540 static inline int low2highgid(int gid)
1541 {
1542     if ((int16_t)gid == -1)
1543         return -1;
1544     else
1545         return gid;
1546 }
1547
1548 #endif /* USE_UID16 */
1549
1550 void syscall_init(void)
1551 {
1552     IOCTLEntry *ie;
1553     const argtype *arg_type;
1554     int size;
1555
1556 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
1557 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
1558 #include "syscall_types.h"
1559 #undef STRUCT
1560 #undef STRUCT_SPECIAL
1561
1562     /* we patch the ioctl size if necessary. We rely on the fact that
1563        no ioctl has all the bits at '1' in the size field */
1564     ie = ioctl_entries;
1565     while (ie->target_cmd != 0) {
1566         if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
1567             TARGET_IOC_SIZEMASK) {
1568             arg_type = ie->arg_type;
1569             if (arg_type[0] != TYPE_PTR) {
1570                 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
1571                         ie->target_cmd);
1572                 exit(1);
1573             }
1574             arg_type++;
1575             size = thunk_type_size(arg_type, 0);
1576             ie->target_cmd = (ie->target_cmd &
1577                               ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
1578                 (size << TARGET_IOC_SIZESHIFT);
1579         }
1580         /* automatic consistency check if same arch */
1581 #if defined(__i386__) && defined(TARGET_I386)
1582         if (ie->target_cmd != ie->host_cmd) {
1583             fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n",
1584                     ie->target_cmd, ie->host_cmd);
1585         }
1586 #endif
1587         ie++;
1588     }
1589 }
1590
1591 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
1592                 long arg4, long arg5, long arg6)
1593 {
1594     long ret;
1595     struct stat st;
1596     struct kernel_statfs *stfs;
1597
1598 #ifdef DEBUG
1599     gemu_log("syscall %d", num);
1600 #endif
1601     switch(num) {
1602     case TARGET_NR_exit:
1603 #ifdef HAVE_GPROF
1604         _mcleanup();
1605 #endif
1606         gdb_exit(cpu_env, arg1);
1607         /* XXX: should free thread stack and CPU env */
1608         _exit(arg1);
1609         ret = 0; /* avoid warning */
1610         break;
1611     case TARGET_NR_read:
1612         page_unprotect_range((void *)arg2, arg3);
1613         ret = get_errno(read(arg1, (void *)arg2, arg3));
1614         break;
1615     case TARGET_NR_write:
1616         ret = get_errno(write(arg1, (void *)arg2, arg3));
1617         break;
1618     case TARGET_NR_open:
1619         ret = get_errno(open(path((const char *)arg1),
1620                              target_to_host_bitmask(arg2, fcntl_flags_tbl),
1621                              arg3));
1622         break;
1623     case TARGET_NR_close:
1624         ret = get_errno(close(arg1));
1625         break;
1626     case TARGET_NR_brk:
1627         ret = do_brk((char *)arg1);
1628         break;
1629     case TARGET_NR_fork:
1630         ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
1631         break;
1632     case TARGET_NR_waitpid:
1633         {
1634             int *status = (int *)arg2;
1635             ret = get_errno(waitpid(arg1, status, arg3));
1636             if (!is_error(ret) && status)
1637                 tswapls((long *)&status);
1638         }
1639         break;
1640     case TARGET_NR_creat:
1641         ret = get_errno(creat((const char *)arg1, arg2));
1642         break;
1643     case TARGET_NR_link:
1644         ret = get_errno(link((const char *)arg1, (const char *)arg2));
1645         break;
1646     case TARGET_NR_unlink:
1647         ret = get_errno(unlink((const char *)arg1));
1648         break;
1649     case TARGET_NR_execve:
1650         {
1651             char **argp, **envp;
1652             int argc, envc;
1653             uint32_t *p;
1654             char **q;
1655
1656             argc = 0;
1657             for (p = (void *)arg2; *p; p++)
1658                 argc++;
1659             envc = 0;
1660             for (p = (void *)arg3; *p; p++)
1661                 envc++;
1662
1663             argp = alloca((argc + 1) * sizeof(void *));
1664             envp = alloca((envc + 1) * sizeof(void *));
1665
1666             for (p = (void *)arg2, q = argp; *p; p++, q++)
1667                 *q = (void *)tswap32(*p);
1668             *q = NULL;
1669
1670             for (p = (void *)arg3, q = envp; *p; p++, q++)
1671                 *q = (void *)tswap32(*p);
1672             *q = NULL;
1673
1674             ret = get_errno(execve((const char *)arg1, argp, envp));
1675         }
1676         break;
1677     case TARGET_NR_chdir:
1678         ret = get_errno(chdir((const char *)arg1));
1679         break;
1680 #ifdef TARGET_NR_time
1681     case TARGET_NR_time:
1682         {
1683             int *time_ptr = (int *)arg1;
1684             ret = get_errno(time((time_t *)time_ptr));
1685             if (!is_error(ret) && time_ptr)
1686                 tswap32s(time_ptr);
1687         }
1688         break;
1689 #endif
1690     case TARGET_NR_mknod:
1691         ret = get_errno(mknod((const char *)arg1, arg2, arg3));
1692         break;
1693     case TARGET_NR_chmod:
1694         ret = get_errno(chmod((const char *)arg1, arg2));
1695         break;
1696 #ifdef TARGET_NR_break
1697     case TARGET_NR_break:
1698         goto unimplemented;
1699 #endif
1700 #ifdef TARGET_NR_oldstat
1701     case TARGET_NR_oldstat:
1702         goto unimplemented;
1703 #endif
1704     case TARGET_NR_lseek:
1705         ret = get_errno(lseek(arg1, arg2, arg3));
1706         break;
1707     case TARGET_NR_getpid:
1708         ret = get_errno(getpid());
1709         break;
1710     case TARGET_NR_mount:
1711         /* need to look at the data field */
1712         goto unimplemented;
1713     case TARGET_NR_umount:
1714         ret = get_errno(umount((const char *)arg1));
1715         break;
1716     case TARGET_NR_stime:
1717         {
1718             int *time_ptr = (int *)arg1;
1719             if (time_ptr)
1720                 tswap32s(time_ptr);
1721             ret = get_errno(stime((time_t *)time_ptr));
1722         }
1723         break;
1724     case TARGET_NR_ptrace:
1725         goto unimplemented;
1726     case TARGET_NR_alarm:
1727         ret = alarm(arg1);
1728         break;
1729 #ifdef TARGET_NR_oldfstat
1730     case TARGET_NR_oldfstat:
1731         goto unimplemented;
1732 #endif
1733     case TARGET_NR_pause:
1734         ret = get_errno(pause());
1735         break;
1736     case TARGET_NR_utime:
1737         {
1738             struct utimbuf tbuf, *tbuf1;
1739             struct target_utimbuf *target_tbuf = (void *)arg2;
1740             if (target_tbuf) {
1741                 get_user(tbuf.actime, &target_tbuf->actime);
1742                 get_user(tbuf.modtime, &target_tbuf->modtime);
1743                 tbuf1 = &tbuf;
1744             } else {
1745                 tbuf1 = NULL;
1746             }
1747             ret = get_errno(utime((const char *)arg1, tbuf1));
1748         }
1749         break;
1750     case TARGET_NR_utimes:
1751         {
1752             struct target_timeval *target_tvp = (struct target_timeval *)arg2;
1753             struct timeval *tvp, tv[2];
1754             if (target_tvp) {
1755                 target_to_host_timeval(&tv[0], &target_tvp[0]);
1756                 target_to_host_timeval(&tv[1], &target_tvp[1]);
1757                 tvp = tv;
1758             } else {
1759                 tvp = NULL;
1760             }
1761             ret = get_errno(utimes((const char *)arg1, tvp));
1762         }
1763         break;
1764 #ifdef TARGET_NR_stty
1765     case TARGET_NR_stty:
1766         goto unimplemented;
1767 #endif
1768 #ifdef TARGET_NR_gtty
1769     case TARGET_NR_gtty:
1770         goto unimplemented;
1771 #endif
1772     case TARGET_NR_access:
1773         ret = get_errno(access((const char *)arg1, arg2));
1774         break;
1775     case TARGET_NR_nice:
1776         ret = get_errno(nice(arg1));
1777         break;
1778 #ifdef TARGET_NR_ftime
1779     case TARGET_NR_ftime:
1780         goto unimplemented;
1781 #endif
1782     case TARGET_NR_sync:
1783         sync();
1784         ret = 0;
1785         break;
1786     case TARGET_NR_kill:
1787         ret = get_errno(kill(arg1, arg2));
1788         break;
1789     case TARGET_NR_rename:
1790         ret = get_errno(rename((const char *)arg1, (const char *)arg2));
1791         break;
1792     case TARGET_NR_mkdir:
1793         ret = get_errno(mkdir((const char *)arg1, arg2));
1794         break;
1795     case TARGET_NR_rmdir:
1796         ret = get_errno(rmdir((const char *)arg1));
1797         break;
1798     case TARGET_NR_dup:
1799         ret = get_errno(dup(arg1));
1800         break;
1801     case TARGET_NR_pipe:
1802         {
1803             int *pipe_ptr = (int *)arg1;
1804             ret = get_errno(pipe(pipe_ptr));
1805             if (!is_error(ret)) {
1806                 tswap32s(&pipe_ptr[0]);
1807                 tswap32s(&pipe_ptr[1]);
1808             }
1809         }
1810         break;
1811     case TARGET_NR_times:
1812         {
1813             struct target_tms *tmsp = (void *)arg1;
1814             struct tms tms;
1815             ret = get_errno(times(&tms));
1816             if (tmsp) {
1817                 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
1818                 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
1819                 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
1820                 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
1821             }
1822             if (!is_error(ret))
1823                 ret = host_to_target_clock_t(ret);
1824         }
1825         break;
1826 #ifdef TARGET_NR_prof
1827     case TARGET_NR_prof:
1828         goto unimplemented;
1829 #endif
1830     case TARGET_NR_signal:
1831         goto unimplemented;
1832
1833     case TARGET_NR_acct:
1834         goto unimplemented;
1835     case TARGET_NR_umount2:
1836         ret = get_errno(umount2((const char *)arg1, arg2));
1837         break;
1838 #ifdef TARGET_NR_lock
1839     case TARGET_NR_lock:
1840         goto unimplemented;
1841 #endif
1842     case TARGET_NR_ioctl:
1843         ret = do_ioctl(arg1, arg2, arg3);
1844         break;
1845     case TARGET_NR_fcntl:
1846         ret = get_errno(do_fcntl(arg1, arg2, arg3));
1847         break;
1848 #ifdef TARGET_NR_mpx
1849     case TARGET_NR_mpx:
1850         goto unimplemented;
1851 #endif
1852     case TARGET_NR_setpgid:
1853         ret = get_errno(setpgid(arg1, arg2));
1854         break;
1855 #ifdef TARGET_NR_ulimit
1856     case TARGET_NR_ulimit:
1857         goto unimplemented;
1858 #endif
1859 #ifdef TARGET_NR_oldolduname
1860     case TARGET_NR_oldolduname:
1861         goto unimplemented;
1862 #endif
1863     case TARGET_NR_umask:
1864         ret = get_errno(umask(arg1));
1865         break;
1866     case TARGET_NR_chroot:
1867         ret = get_errno(chroot((const char *)arg1));
1868         break;
1869     case TARGET_NR_ustat:
1870         goto unimplemented;
1871     case TARGET_NR_dup2:
1872         ret = get_errno(dup2(arg1, arg2));
1873         break;
1874     case TARGET_NR_getppid:
1875         ret = get_errno(getppid());
1876         break;
1877     case TARGET_NR_getpgrp:
1878         ret = get_errno(getpgrp());
1879         break;
1880     case TARGET_NR_setsid:
1881         ret = get_errno(setsid());
1882         break;
1883     case TARGET_NR_sigaction:
1884         {
1885             struct target_old_sigaction *old_act = (void *)arg2;
1886             struct target_old_sigaction *old_oact = (void *)arg3;
1887             struct target_sigaction act, oact, *pact;
1888             if (old_act) {
1889                 act._sa_handler = old_act->_sa_handler;
1890                 target_siginitset(&act.sa_mask, old_act->sa_mask);
1891                 act.sa_flags = old_act->sa_flags;
1892                 act.sa_restorer = old_act->sa_restorer;
1893                 pact = &act;
1894             } else {
1895                 pact = NULL;
1896             }
1897             ret = get_errno(do_sigaction(arg1, pact, &oact));
1898             if (!is_error(ret) && old_oact) {
1899                 old_oact->_sa_handler = oact._sa_handler;
1900                 old_oact->sa_mask = oact.sa_mask.sig[0];
1901                 old_oact->sa_flags = oact.sa_flags;
1902                 old_oact->sa_restorer = oact.sa_restorer;
1903             }
1904         }
1905         break;
1906     case TARGET_NR_rt_sigaction:
1907         ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3));
1908         break;
1909     case TARGET_NR_sgetmask:
1910         {
1911             sigset_t cur_set;
1912             target_ulong target_set;
1913             sigprocmask(0, NULL, &cur_set);
1914             host_to_target_old_sigset(&target_set, &cur_set);
1915             ret = target_set;
1916         }
1917         break;
1918     case TARGET_NR_ssetmask:
1919         {
1920             sigset_t set, oset, cur_set;
1921             target_ulong target_set = arg1;
1922             sigprocmask(0, NULL, &cur_set);
1923             target_to_host_old_sigset(&set, &target_set);
1924             sigorset(&set, &set, &cur_set);
1925             sigprocmask(SIG_SETMASK, &set, &oset);
1926             host_to_target_old_sigset(&target_set, &oset);
1927             ret = target_set;
1928         }
1929         break;
1930     case TARGET_NR_sigprocmask:
1931         {
1932             int how = arg1;
1933             sigset_t set, oldset, *set_ptr;
1934             target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
1935
1936             if (pset) {
1937                 switch(how) {
1938                 case TARGET_SIG_BLOCK:
1939                     how = SIG_BLOCK;
1940                     break;
1941                 case TARGET_SIG_UNBLOCK:
1942                     how = SIG_UNBLOCK;
1943                     break;
1944                 case TARGET_SIG_SETMASK:
1945                     how = SIG_SETMASK;
1946                     break;
1947                 default:
1948                     ret = -EINVAL;
1949                     goto fail;
1950                 }
1951                 target_to_host_old_sigset(&set, pset);
1952                 set_ptr = &set;
1953             } else {
1954                 how = 0;
1955                 set_ptr = NULL;
1956             }
1957             ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
1958             if (!is_error(ret) && poldset) {
1959                 host_to_target_old_sigset(poldset, &oldset);
1960             }
1961         }
1962         break;
1963     case TARGET_NR_rt_sigprocmask:
1964         {
1965             int how = arg1;
1966             sigset_t set, oldset, *set_ptr;
1967             target_sigset_t *pset = (void *)arg2;
1968             target_sigset_t *poldset = (void *)arg3;
1969
1970             if (pset) {
1971                 switch(how) {
1972                 case TARGET_SIG_BLOCK:
1973                     how = SIG_BLOCK;
1974                     break;
1975                 case TARGET_SIG_UNBLOCK:
1976                     how = SIG_UNBLOCK;
1977                     break;
1978                 case TARGET_SIG_SETMASK:
1979                     how = SIG_SETMASK;
1980                     break;
1981                 default:
1982                     ret = -EINVAL;
1983                     goto fail;
1984                 }
1985                 target_to_host_sigset(&set, pset);
1986                 set_ptr = &set;
1987             } else {
1988                 how = 0;
1989                 set_ptr = NULL;
1990             }
1991             ret = get_errno(sigprocmask(how, set_ptr, &oldset));
1992             if (!is_error(ret) && poldset) {
1993                 host_to_target_sigset(poldset, &oldset);
1994             }
1995         }
1996         break;
1997     case TARGET_NR_sigpending:
1998         {
1999             sigset_t set;
2000             ret = get_errno(sigpending(&set));
2001             if (!is_error(ret)) {
2002                 host_to_target_old_sigset((target_ulong *)arg1, &set);
2003             }
2004         }
2005         break;
2006     case TARGET_NR_rt_sigpending:
2007         {
2008             sigset_t set;
2009             ret = get_errno(sigpending(&set));
2010             if (!is_error(ret)) {
2011                 host_to_target_sigset((target_sigset_t *)arg1, &set);
2012             }
2013         }
2014         break;
2015     case TARGET_NR_sigsuspend:
2016         {
2017             sigset_t set;
2018             target_to_host_old_sigset(&set, (target_ulong *)arg1);
2019             ret = get_errno(sigsuspend(&set));
2020         }
2021         break;
2022     case TARGET_NR_rt_sigsuspend:
2023         {
2024             sigset_t set;
2025             target_to_host_sigset(&set, (target_sigset_t *)arg1);
2026             ret = get_errno(sigsuspend(&set));
2027         }
2028         break;
2029     case TARGET_NR_rt_sigtimedwait:
2030         {
2031             target_sigset_t *target_set = (void *)arg1;
2032             target_siginfo_t *target_uinfo = (void *)arg2;
2033             struct target_timespec *target_uts = (void *)arg3;
2034             sigset_t set;
2035             struct timespec uts, *puts;
2036             siginfo_t uinfo;
2037
2038             target_to_host_sigset(&set, target_set);
2039             if (target_uts) {
2040                 puts = &uts;
2041                 puts->tv_sec = tswapl(target_uts->tv_sec);
2042                 puts->tv_nsec = tswapl(target_uts->tv_nsec);
2043             } else {
2044                 puts = NULL;
2045             }
2046             ret = get_errno(sigtimedwait(&set, &uinfo, puts));
2047             if (!is_error(ret) && target_uinfo) {
2048                 host_to_target_siginfo(target_uinfo, &uinfo);
2049             }
2050         }
2051         break;
2052     case TARGET_NR_rt_sigqueueinfo:
2053         {
2054             siginfo_t uinfo;
2055             target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3);
2056             ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
2057         }
2058         break;
2059     case TARGET_NR_sigreturn:
2060         /* NOTE: ret is eax, so not transcoding must be done */
2061         ret = do_sigreturn(cpu_env);
2062         break;
2063     case TARGET_NR_rt_sigreturn:
2064         /* NOTE: ret is eax, so not transcoding must be done */
2065         ret = do_rt_sigreturn(cpu_env);
2066         break;
2067     case TARGET_NR_sethostname:
2068         ret = get_errno(sethostname((const char *)arg1, arg2));
2069         break;
2070     case TARGET_NR_setrlimit:
2071         {
2072             /* XXX: convert resource ? */
2073             int resource = arg1;
2074             struct target_rlimit *target_rlim = (void *)arg2;
2075             struct rlimit rlim;
2076             rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
2077             rlim.rlim_max = tswapl(target_rlim->rlim_max);
2078             ret = get_errno(setrlimit(resource, &rlim));
2079         }
2080         break;
2081     case TARGET_NR_getrlimit:
2082         {
2083             /* XXX: convert resource ? */
2084             int resource = arg1;
2085             struct target_rlimit *target_rlim = (void *)arg2;
2086             struct rlimit rlim;
2087
2088             ret = get_errno(getrlimit(resource, &rlim));
2089             if (!is_error(ret)) {
2090                 target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2091                 target_rlim->rlim_max = tswapl(rlim.rlim_max);
2092             }
2093         }
2094         break;
2095     case TARGET_NR_getrusage:
2096         {
2097             struct rusage rusage;
2098             struct target_rusage *target_rusage = (void *)arg2;
2099             ret = get_errno(getrusage(arg1, &rusage));
2100             if (!is_error(ret)) {
2101                 host_to_target_rusage(target_rusage, &rusage);
2102             }
2103         }
2104         break;
2105     case TARGET_NR_gettimeofday:
2106         {
2107             struct target_timeval *target_tv = (void *)arg1;
2108             struct timeval tv;
2109             ret = get_errno(gettimeofday(&tv, NULL));
2110             if (!is_error(ret)) {
2111                 host_to_target_timeval(target_tv, &tv);
2112             }
2113         }
2114         break;
2115     case TARGET_NR_settimeofday:
2116         {
2117             struct target_timeval *target_tv = (void *)arg1;
2118             struct timeval tv;
2119             target_to_host_timeval(&tv, target_tv);
2120             ret = get_errno(settimeofday(&tv, NULL));
2121         }
2122         break;
2123     case TARGET_NR_select:
2124         {
2125             struct target_sel_arg_struct *sel = (void *)arg1;
2126             sel->n = tswapl(sel->n);
2127             sel->inp = tswapl(sel->inp);
2128             sel->outp = tswapl(sel->outp);
2129             sel->exp = tswapl(sel->exp);
2130             sel->tvp = tswapl(sel->tvp);
2131             ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp,
2132                             (void *)sel->exp, (void *)sel->tvp);
2133         }
2134         break;
2135     case TARGET_NR_symlink:
2136         ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
2137         break;
2138 #ifdef TARGET_NR_oldlstat
2139     case TARGET_NR_oldlstat:
2140         goto unimplemented;
2141 #endif
2142     case TARGET_NR_readlink:
2143         ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3));
2144         break;
2145     case TARGET_NR_uselib:
2146         goto unimplemented;
2147     case TARGET_NR_swapon:
2148         ret = get_errno(swapon((const char *)arg1, arg2));
2149         break;
2150     case TARGET_NR_reboot:
2151         goto unimplemented;
2152     case TARGET_NR_readdir:
2153         goto unimplemented;
2154     case TARGET_NR_mmap:
2155 #if defined(TARGET_I386) || defined(TARGET_ARM)
2156         {
2157             uint32_t v1, v2, v3, v4, v5, v6, *vptr;
2158             vptr = (uint32_t *)arg1;
2159             v1 = tswap32(vptr[0]);
2160             v2 = tswap32(vptr[1]);
2161             v3 = tswap32(vptr[2]);
2162             v4 = tswap32(vptr[3]);
2163             v5 = tswap32(vptr[4]);
2164             v6 = tswap32(vptr[5]);
2165             ret = get_errno(target_mmap(v1, v2, v3,
2166                                         target_to_host_bitmask(v4, mmap_flags_tbl),
2167                                         v5, v6));
2168         }
2169 #else
2170         ret = get_errno(target_mmap(arg1, arg2, arg3,
2171                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2172                                     arg5,
2173                                     arg6));
2174 #endif
2175         break;
2176 #ifdef TARGET_NR_mmap2
2177     case TARGET_NR_mmap2:
2178 #if defined(TARGET_SPARC)
2179 #define MMAP_SHIFT 12
2180 #else
2181 #define MMAP_SHIFT TARGET_PAGE_BITS
2182 #endif
2183         ret = get_errno(target_mmap(arg1, arg2, arg3,
2184                                     target_to_host_bitmask(arg4, mmap_flags_tbl),
2185                                     arg5,
2186                                     arg6 << MMAP_SHIFT));
2187         break;
2188 #endif
2189     case TARGET_NR_munmap:
2190         ret = get_errno(target_munmap(arg1, arg2));
2191         break;
2192     case TARGET_NR_mprotect:
2193         ret = get_errno(target_mprotect(arg1, arg2, arg3));
2194         break;
2195     case TARGET_NR_mremap:
2196         ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
2197         break;
2198     case TARGET_NR_msync:
2199         ret = get_errno(msync((void *)arg1, arg2, arg3));
2200         break;
2201     case TARGET_NR_mlock:
2202         ret = get_errno(mlock((void *)arg1, arg2));
2203         break;
2204     case TARGET_NR_munlock:
2205         ret = get_errno(munlock((void *)arg1, arg2));
2206         break;
2207     case TARGET_NR_mlockall:
2208         ret = get_errno(mlockall(arg1));
2209         break;
2210     case TARGET_NR_munlockall:
2211         ret = get_errno(munlockall());
2212         break;
2213     case TARGET_NR_truncate:
2214         ret = get_errno(truncate((const char *)arg1, arg2));
2215         break;
2216     case TARGET_NR_ftruncate:
2217         ret = get_errno(ftruncate(arg1, arg2));
2218         break;
2219     case TARGET_NR_fchmod:
2220         ret = get_errno(fchmod(arg1, arg2));
2221         break;
2222     case TARGET_NR_getpriority:
2223         ret = get_errno(getpriority(arg1, arg2));
2224         break;
2225     case TARGET_NR_setpriority:
2226         ret = get_errno(setpriority(arg1, arg2, arg3));
2227         break;
2228 #ifdef TARGET_NR_profil
2229     case TARGET_NR_profil:
2230         goto unimplemented;
2231 #endif
2232     case TARGET_NR_statfs:
2233         stfs = (void *)arg2;
2234         ret = get_errno(sys_statfs(path((const char *)arg1), stfs));
2235     convert_statfs:
2236         if (!is_error(ret)) {
2237             tswap32s(&stfs->f_type);
2238             tswap32s(&stfs->f_bsize);
2239             tswap32s(&stfs->f_blocks);
2240             tswap32s(&stfs->f_bfree);
2241             tswap32s(&stfs->f_bavail);
2242             tswap32s(&stfs->f_files);
2243             tswap32s(&stfs->f_ffree);
2244             tswap32s(&stfs->f_fsid.val[0]);
2245             tswap32s(&stfs->f_fsid.val[1]);
2246             tswap32s(&stfs->f_namelen);
2247         }
2248         break;
2249     case TARGET_NR_fstatfs:
2250         stfs = (void *)arg2;
2251         ret = get_errno(sys_fstatfs(arg1, stfs));
2252         goto convert_statfs;
2253 #ifdef TARGET_NR_ioperm
2254     case TARGET_NR_ioperm:
2255         goto unimplemented;
2256 #endif
2257     case TARGET_NR_socketcall:
2258         ret = do_socketcall(arg1, (int32_t *)arg2);
2259         break;
2260     case TARGET_NR_syslog:
2261         goto unimplemented;
2262     case TARGET_NR_setitimer:
2263         {
2264             struct target_itimerval *target_value = (void *)arg2;
2265             struct target_itimerval *target_ovalue = (void *)arg3;
2266             struct itimerval value, ovalue, *pvalue;
2267
2268             if (target_value) {
2269                 pvalue = &value;
2270                 target_to_host_timeval(&pvalue->it_interval,
2271                                        &target_value->it_interval);
2272                 target_to_host_timeval(&pvalue->it_value,
2273                                        &target_value->it_value);
2274             } else {
2275                 pvalue = NULL;
2276             }
2277             ret = get_errno(setitimer(arg1, pvalue, &ovalue));
2278             if (!is_error(ret) && target_ovalue) {
2279                 host_to_target_timeval(&target_ovalue->it_interval,
2280                                        &ovalue.it_interval);
2281                 host_to_target_timeval(&target_ovalue->it_value,
2282                                        &ovalue.it_value);
2283             }
2284         }
2285         break;
2286     case TARGET_NR_getitimer:
2287         {
2288             struct target_itimerval *target_value = (void *)arg2;
2289             struct itimerval value;
2290
2291             ret = get_errno(getitimer(arg1, &value));
2292             if (!is_error(ret) && target_value) {
2293                 host_to_target_timeval(&target_value->it_interval,
2294                                        &value.it_interval);
2295                 host_to_target_timeval(&target_value->it_value,
2296                                        &value.it_value);
2297             }
2298         }
2299         break;
2300     case TARGET_NR_stat:
2301         ret = get_errno(stat(path((const char *)arg1), &st));
2302         goto do_stat;
2303     case TARGET_NR_lstat:
2304         ret = get_errno(lstat(path((const char *)arg1), &st));
2305         goto do_stat;
2306     case TARGET_NR_fstat:
2307         {
2308             ret = get_errno(fstat(arg1, &st));
2309         do_stat:
2310             if (!is_error(ret)) {
2311                 struct target_stat *target_st = (void *)arg2;
2312                 target_st->st_dev = tswap16(st.st_dev);
2313                 target_st->st_ino = tswapl(st.st_ino);
2314 #if defined(TARGET_PPC)
2315                 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */
2316                 target_st->st_uid = tswap32(st.st_uid);
2317                 target_st->st_gid = tswap32(st.st_gid);
2318 #else
2319                 target_st->st_mode = tswap16(st.st_mode);
2320                 target_st->st_uid = tswap16(st.st_uid);
2321                 target_st->st_gid = tswap16(st.st_gid);
2322 #endif
2323                 target_st->st_nlink = tswap16(st.st_nlink);
2324                 target_st->st_rdev = tswap16(st.st_rdev);
2325                 target_st->st_size = tswapl(st.st_size);
2326                 target_st->st_blksize = tswapl(st.st_blksize);
2327                 target_st->st_blocks = tswapl(st.st_blocks);
2328                 target_st->target_st_atime = tswapl(st.st_atime);
2329                 target_st->target_st_mtime = tswapl(st.st_mtime);
2330                 target_st->target_st_ctime = tswapl(st.st_ctime);
2331             }
2332         }
2333         break;
2334 #ifdef TARGET_NR_olduname
2335     case TARGET_NR_olduname:
2336         goto unimplemented;
2337 #endif
2338 #ifdef TARGET_NR_iopl
2339     case TARGET_NR_iopl:
2340         goto unimplemented;
2341 #endif
2342     case TARGET_NR_vhangup:
2343         ret = get_errno(vhangup());
2344         break;
2345 #ifdef TARGET_NR_idle
2346     case TARGET_NR_idle:
2347         goto unimplemented;
2348 #endif
2349 #ifdef TARGET_NR_syscall
2350     case TARGET_NR_syscall:
2351         ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
2352         break;
2353 #endif
2354     case TARGET_NR_wait4:
2355         {
2356             int status;
2357             target_long *status_ptr = (void *)arg2;
2358             struct rusage rusage, *rusage_ptr;
2359             struct target_rusage *target_rusage = (void *)arg4;
2360             if (target_rusage)
2361                 rusage_ptr = &rusage;
2362             else
2363                 rusage_ptr = NULL;
2364             ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
2365             if (!is_error(ret)) {
2366                 if (status_ptr)
2367                     *status_ptr = tswap32(status);
2368                 if (target_rusage) {
2369                     host_to_target_rusage(target_rusage, &rusage);
2370                 }
2371             }
2372         }
2373         break;
2374     case TARGET_NR_swapoff:
2375         ret = get_errno(swapoff((const char *)arg1));
2376         break;
2377     case TARGET_NR_sysinfo:
2378         {
2379             struct target_sysinfo *target_value = (void *)arg1;
2380             struct sysinfo value;
2381             ret = get_errno(sysinfo(&value));
2382             if (!is_error(ret) && target_value)
2383             {
2384                 __put_user(value.uptime, &target_value->uptime);
2385                 __put_user(value.loads[0], &target_value->loads[0]);
2386                 __put_user(value.loads[1], &target_value->loads[1]);
2387                 __put_user(value.loads[2], &target_value->loads[2]);
2388                 __put_user(value.totalram, &target_value->totalram);
2389                 __put_user(value.freeram, &target_value->freeram);
2390                 __put_user(value.sharedram, &target_value->sharedram);
2391                 __put_user(value.bufferram, &target_value->bufferram);
2392                 __put_user(value.totalswap, &target_value->totalswap);
2393                 __put_user(value.freeswap, &target_value->freeswap);
2394                 __put_user(value.procs, &target_value->procs);
2395                 __put_user(value.totalhigh, &target_value->totalhigh);
2396                 __put_user(value.freehigh, &target_value->freehigh);
2397                 __put_user(value.mem_unit, &target_value->mem_unit);
2398             }
2399         }
2400         break;
2401     case TARGET_NR_ipc:
2402         ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
2403         break;
2404     case TARGET_NR_fsync:
2405         ret = get_errno(fsync(arg1));
2406         break;
2407     case TARGET_NR_clone:
2408         ret = get_errno(do_fork(cpu_env, arg1, arg2));
2409         break;
2410 #ifdef __NR_exit_group
2411         /* new thread calls */
2412     case TARGET_NR_exit_group:
2413         gdb_exit(cpu_env, arg1);
2414         ret = get_errno(exit_group(arg1));
2415         break;
2416 #endif
2417     case TARGET_NR_setdomainname:
2418         ret = get_errno(setdomainname((const char *)arg1, arg2));
2419         break;
2420     case TARGET_NR_uname:
2421         /* no need to transcode because we use the linux syscall */
2422         {
2423             struct new_utsname * buf;
2424
2425             buf = (struct new_utsname *)arg1;
2426             ret = get_errno(sys_uname(buf));
2427             if (!is_error(ret)) {
2428                 /* Overrite the native machine name with whatever is being
2429                    emulated. */
2430                 strcpy (buf->machine, UNAME_MACHINE);
2431             }
2432         }
2433         break;
2434 #ifdef TARGET_I386
2435     case TARGET_NR_modify_ldt:
2436         ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3));
2437         break;
2438     case TARGET_NR_vm86old:
2439         goto unimplemented;
2440     case TARGET_NR_vm86:
2441         ret = do_vm86(cpu_env, arg1, (void *)arg2);
2442         break;
2443 #endif
2444     case TARGET_NR_adjtimex:
2445         goto unimplemented;
2446     case TARGET_NR_create_module:
2447     case TARGET_NR_init_module:
2448     case TARGET_NR_delete_module:
2449     case TARGET_NR_get_kernel_syms:
2450         goto unimplemented;
2451     case TARGET_NR_quotactl:
2452         goto unimplemented;
2453     case TARGET_NR_getpgid:
2454         ret = get_errno(getpgid(arg1));
2455         break;
2456     case TARGET_NR_fchdir:
2457         ret = get_errno(fchdir(arg1));
2458         break;
2459     case TARGET_NR_bdflush:
2460         goto unimplemented;
2461     case TARGET_NR_sysfs:
2462         goto unimplemented;
2463     case TARGET_NR_personality:
2464         ret = get_errno(personality(arg1));
2465         break;
2466     case TARGET_NR_afs_syscall:
2467         goto unimplemented;
2468     case TARGET_NR__llseek:
2469         {
2470 #if defined (__x86_64__)
2471             ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
2472             *(int64_t *)arg4 = ret;
2473 #else
2474             int64_t res;
2475             ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
2476             *(int64_t *)arg4 = tswap64(res);
2477 #endif
2478         }
2479         break;
2480     case TARGET_NR_getdents:
2481 #if TARGET_LONG_SIZE != 4
2482 #warning not supported
2483 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
2484         {
2485             struct target_dirent *target_dirp = (void *)arg2;
2486             struct dirent *dirp;
2487             long count = arg3;
2488
2489             dirp = malloc(count);
2490             if (!dirp)
2491                 return -ENOMEM;
2492
2493             ret = get_errno(sys_getdents(arg1, dirp, count));
2494             if (!is_error(ret)) {
2495                 struct dirent *de;
2496                 struct target_dirent *tde;
2497                 int len = ret;
2498                 int reclen, treclen;
2499                 int count1, tnamelen;
2500
2501                 count1 = 0;
2502                 de = dirp;
2503                 tde = target_dirp;
2504                 while (len > 0) {
2505                     reclen = de->d_reclen;
2506                     treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
2507                     tde->d_reclen = tswap16(treclen);
2508                     tde->d_ino = tswapl(de->d_ino);
2509                     tde->d_off = tswapl(de->d_off);
2510                     tnamelen = treclen - (2 * sizeof(target_long) + 2);
2511                     if (tnamelen > 256)
2512                         tnamelen = 256;
2513                     /* XXX: may not be correct */
2514                     strncpy(tde->d_name, de->d_name, tnamelen);
2515                     de = (struct dirent *)((char *)de + reclen);
2516                     len -= reclen;
2517                     tde = (struct dirent *)((char *)tde + treclen);
2518                     count1 += treclen;
2519                 }
2520                 ret = count1;
2521             }
2522             free(dirp);
2523         }
2524 #else
2525         {
2526             struct dirent *dirp = (void *)arg2;
2527             long count = arg3;
2528
2529             ret = get_errno(sys_getdents(arg1, dirp, count));
2530             if (!is_error(ret)) {
2531                 struct dirent *de;
2532                 int len = ret;
2533                 int reclen;
2534                 de = dirp;
2535                 while (len > 0) {
2536                     reclen = de->d_reclen;
2537                     if (reclen > len)
2538                         break;
2539                     de->d_reclen = tswap16(reclen);
2540                     tswapls(&de->d_ino);
2541                     tswapls(&de->d_off);
2542                     de = (struct dirent *)((char *)de + reclen);
2543                     len -= reclen;
2544                 }
2545             }
2546         }
2547 #endif
2548         break;
2549 #ifdef TARGET_NR_getdents64
2550     case TARGET_NR_getdents64:
2551         {
2552             struct dirent64 *dirp = (void *)arg2;
2553             long count = arg3;
2554             ret = get_errno(sys_getdents64(arg1, dirp, count));
2555             if (!is_error(ret)) {
2556                 struct dirent64 *de;
2557                 int len = ret;
2558                 int reclen;
2559                 de = dirp;
2560                 while (len > 0) {
2561                     reclen = de->d_reclen;
2562                     if (reclen > len)
2563                         break;
2564                     de->d_reclen = tswap16(reclen);
2565                     tswap64s(&de->d_ino);
2566                     tswap64s(&de->d_off);
2567                     de = (struct dirent64 *)((char *)de + reclen);
2568                     len -= reclen;
2569                 }
2570             }
2571         }
2572         break;
2573 #endif /* TARGET_NR_getdents64 */
2574     case TARGET_NR__newselect:
2575         ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4,
2576                         (void *)arg5);
2577         break;
2578     case TARGET_NR_poll:
2579         {
2580             struct target_pollfd *target_pfd = (void *)arg1;
2581             unsigned int nfds = arg2;
2582             int timeout = arg3;
2583             struct pollfd *pfd;
2584             unsigned int i;
2585
2586             pfd = alloca(sizeof(struct pollfd) * nfds);
2587             for(i = 0; i < nfds; i++) {
2588                 pfd[i].fd = tswap32(target_pfd[i].fd);
2589                 pfd[i].events = tswap16(target_pfd[i].events);
2590             }
2591             ret = get_errno(poll(pfd, nfds, timeout));
2592             if (!is_error(ret)) {
2593                 for(i = 0; i < nfds; i++) {
2594                     target_pfd[i].revents = tswap16(pfd[i].revents);
2595                 }
2596             }
2597         }
2598         break;
2599     case TARGET_NR_flock:
2600         /* NOTE: the flock constant seems to be the same for every
2601            Linux platform */
2602         ret = get_errno(flock(arg1, arg2));
2603         break;
2604     case TARGET_NR_readv:
2605         {
2606             int count = arg3;
2607             int i;
2608             struct iovec *vec;
2609             struct target_iovec *target_vec = (void *)arg2;
2610
2611             vec = alloca(count * sizeof(struct iovec));
2612             for(i = 0;i < count; i++) {
2613                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2614                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2615             }
2616             ret = get_errno(readv(arg1, vec, count));
2617         }
2618         break;
2619     case TARGET_NR_writev:
2620         {
2621             int count = arg3;
2622             int i;
2623             struct iovec *vec;
2624             struct target_iovec *target_vec = (void *)arg2;
2625
2626             vec = alloca(count * sizeof(struct iovec));
2627             for(i = 0;i < count; i++) {
2628                 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
2629                 vec[i].iov_len = tswapl(target_vec[i].iov_len);
2630             }
2631             ret = get_errno(writev(arg1, vec, count));
2632         }
2633         break;
2634     case TARGET_NR_getsid:
2635         ret = get_errno(getsid(arg1));
2636         break;
2637     case TARGET_NR_fdatasync:
2638         ret = get_errno(fdatasync(arg1));
2639         break;
2640     case TARGET_NR__sysctl:
2641         /* We don't implement this, but ENODIR is always a safe
2642            return value. */
2643         return -ENOTDIR;
2644     case TARGET_NR_sched_setparam:
2645         {
2646             struct sched_param *target_schp = (void *)arg2;
2647             struct sched_param schp;
2648             schp.sched_priority = tswap32(target_schp->sched_priority);
2649             ret = get_errno(sched_setparam(arg1, &schp));
2650         }
2651         break;
2652     case TARGET_NR_sched_getparam:
2653         {
2654             struct sched_param *target_schp = (void *)arg2;
2655             struct sched_param schp;
2656             ret = get_errno(sched_getparam(arg1, &schp));
2657             if (!is_error(ret)) {
2658                 target_schp->sched_priority = tswap32(schp.sched_priority);
2659             }
2660         }
2661         break;
2662     case TARGET_NR_sched_setscheduler:
2663         {
2664             struct sched_param *target_schp = (void *)arg3;
2665             struct sched_param schp;
2666             schp.sched_priority = tswap32(target_schp->sched_priority);
2667             ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
2668         }
2669         break;
2670     case TARGET_NR_sched_getscheduler:
2671         ret = get_errno(sched_getscheduler(arg1));
2672         break;
2673     case TARGET_NR_sched_yield:
2674         ret = get_errno(sched_yield());
2675         break;
2676     case TARGET_NR_sched_get_priority_max:
2677         ret = get_errno(sched_get_priority_max(arg1));
2678         break;
2679     case TARGET_NR_sched_get_priority_min:
2680         ret = get_errno(sched_get_priority_min(arg1));
2681         break;
2682     case TARGET_NR_sched_rr_get_interval:
2683         {
2684             struct target_timespec *target_ts = (void *)arg2;
2685             struct timespec ts;
2686             ret = get_errno(sched_rr_get_interval(arg1, &ts));
2687             if (!is_error(ret)) {
2688                 target_ts->tv_sec = tswapl(ts.tv_sec);
2689                 target_ts->tv_nsec = tswapl(ts.tv_nsec);
2690             }
2691         }
2692         break;
2693     case TARGET_NR_nanosleep:
2694         {
2695             struct target_timespec *target_req = (void *)arg1;
2696             struct target_timespec *target_rem = (void *)arg2;
2697             struct timespec req, rem;
2698             req.tv_sec = tswapl(target_req->tv_sec);
2699             req.tv_nsec = tswapl(target_req->tv_nsec);
2700             ret = get_errno(nanosleep(&req, &rem));
2701             if (is_error(ret) && target_rem) {
2702                 target_rem->tv_sec = tswapl(rem.tv_sec);
2703                 target_rem->tv_nsec = tswapl(rem.tv_nsec);
2704             }
2705         }
2706         break;
2707     case TARGET_NR_query_module:
2708         goto unimplemented;
2709     case TARGET_NR_nfsservctl:
2710         goto unimplemented;
2711     case TARGET_NR_prctl:
2712         goto unimplemented;
2713 #ifdef TARGET_NR_pread
2714     case TARGET_NR_pread:
2715         page_unprotect_range((void *)arg2, arg3);
2716         ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4));
2717         break;
2718     case TARGET_NR_pwrite:
2719         ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4));
2720         break;
2721 #endif
2722     case TARGET_NR_getcwd:
2723         ret = get_errno(sys_getcwd1((char *)arg1, arg2));
2724         break;
2725     case TARGET_NR_capget:
2726         goto unimplemented;
2727     case TARGET_NR_capset:
2728         goto unimplemented;
2729     case TARGET_NR_sigaltstack:
2730         goto unimplemented;
2731     case TARGET_NR_sendfile:
2732         goto unimplemented;
2733 #ifdef TARGET_NR_getpmsg
2734     case TARGET_NR_getpmsg:
2735         goto unimplemented;
2736 #endif
2737 #ifdef TARGET_NR_putpmsg
2738     case TARGET_NR_putpmsg:
2739         goto unimplemented;
2740 #endif
2741     case TARGET_NR_vfork:
2742         ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
2743         break;
2744 #ifdef TARGET_NR_ugetrlimit
2745     case TARGET_NR_ugetrlimit:
2746     {
2747         struct rlimit rlim;
2748         ret = get_errno(getrlimit(arg1, &rlim));
2749         if (!is_error(ret)) {
2750             struct target_rlimit *target_rlim = (void *)arg2;
2751             target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
2752             target_rlim->rlim_max = tswapl(rlim.rlim_max);
2753         }
2754         break;
2755     }
2756 #endif
2757 #ifdef TARGET_NR_truncate64
2758     case TARGET_NR_truncate64:
2759         goto unimplemented;
2760 #endif
2761 #ifdef TARGET_NR_ftruncate64
2762     case TARGET_NR_ftruncate64:
2763         goto unimplemented;
2764 #endif
2765 #ifdef TARGET_NR_stat64
2766     case TARGET_NR_stat64:
2767         ret = get_errno(stat(path((const char *)arg1), &st));
2768         goto do_stat64;
2769 #endif
2770 #ifdef TARGET_NR_lstat64
2771     case TARGET_NR_lstat64:
2772         ret = get_errno(lstat(path((const char *)arg1), &st));
2773         goto do_stat64;
2774 #endif
2775 #ifdef TARGET_NR_fstat64
2776     case TARGET_NR_fstat64:
2777         {
2778             ret = get_errno(fstat(arg1, &st));
2779         do_stat64:
2780             if (!is_error(ret)) {
2781                 struct target_stat64 *target_st = (void *)arg2;
2782                 memset(target_st, 0, sizeof(struct target_stat64));
2783                 put_user(st.st_dev, &target_st->st_dev);
2784                 put_user(st.st_ino, &target_st->st_ino);
2785 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
2786                 put_user(st.st_ino, &target_st->__st_ino);
2787 #endif
2788                 put_user(st.st_mode, &target_st->st_mode);
2789                 put_user(st.st_nlink, &target_st->st_nlink);
2790                 put_user(st.st_uid, &target_st->st_uid);
2791                 put_user(st.st_gid, &target_st->st_gid);
2792                 put_user(st.st_rdev, &target_st->st_rdev);
2793                 /* XXX: better use of kernel struct */
2794                 put_user(st.st_size, &target_st->st_size);
2795                 put_user(st.st_blksize, &target_st->st_blksize);
2796                 put_user(st.st_blocks, &target_st->st_blocks);
2797                 put_user(st.st_atime, &target_st->target_st_atime);
2798                 put_user(st.st_mtime, &target_st->target_st_mtime);
2799                 put_user(st.st_ctime, &target_st->target_st_ctime);
2800             }
2801         }
2802         break;
2803 #endif
2804 #ifdef USE_UID16
2805     case TARGET_NR_lchown:
2806         ret = get_errno(lchown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2807         break;
2808     case TARGET_NR_getuid:
2809         ret = get_errno(high2lowuid(getuid()));
2810         break;
2811     case TARGET_NR_getgid:
2812         ret = get_errno(high2lowgid(getgid()));
2813         break;
2814     case TARGET_NR_geteuid:
2815         ret = get_errno(high2lowuid(geteuid()));
2816         break;
2817     case TARGET_NR_getegid:
2818         ret = get_errno(high2lowgid(getegid()));
2819         break;
2820     case TARGET_NR_setreuid:
2821         ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
2822         break;
2823     case TARGET_NR_setregid:
2824         ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
2825         break;
2826     case TARGET_NR_getgroups:
2827         {
2828             int gidsetsize = arg1;
2829             uint16_t *target_grouplist = (void *)arg2;
2830             gid_t *grouplist;
2831             int i;
2832
2833             grouplist = alloca(gidsetsize * sizeof(gid_t));
2834             ret = get_errno(getgroups(gidsetsize, grouplist));
2835             if (!is_error(ret)) {
2836                 for(i = 0;i < gidsetsize; i++)
2837                     target_grouplist[i] = tswap16(grouplist[i]);
2838             }
2839         }
2840         break;
2841     case TARGET_NR_setgroups:
2842         {
2843             int gidsetsize = arg1;
2844             uint16_t *target_grouplist = (void *)arg2;
2845             gid_t *grouplist;
2846             int i;
2847
2848             grouplist = alloca(gidsetsize * sizeof(gid_t));
2849             for(i = 0;i < gidsetsize; i++)
2850                 grouplist[i] = tswap16(target_grouplist[i]);
2851             ret = get_errno(setgroups(gidsetsize, grouplist));
2852         }
2853         break;
2854     case TARGET_NR_fchown:
2855         ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
2856         break;
2857 #ifdef TARGET_NR_setresuid
2858     case TARGET_NR_setresuid:
2859         ret = get_errno(setresuid(low2highuid(arg1),
2860                                   low2highuid(arg2),
2861                                   low2highuid(arg3)));
2862         break;
2863 #endif
2864 #ifdef TARGET_NR_getresuid
2865     case TARGET_NR_getresuid:
2866         {
2867             int ruid, euid, suid;
2868             ret = get_errno(getresuid(&ruid, &euid, &suid));
2869             if (!is_error(ret)) {
2870                 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid));
2871                 *(uint16_t *)arg2 = tswap16(high2lowuid(euid));
2872                 *(uint16_t *)arg3 = tswap16(high2lowuid(suid));
2873             }
2874         }
2875         break;
2876 #endif
2877 #ifdef TARGET_NR_getresgid
2878     case TARGET_NR_setresgid:
2879         ret = get_errno(setresgid(low2highgid(arg1),
2880                                   low2highgid(arg2),
2881                                   low2highgid(arg3)));
2882         break;
2883 #endif
2884 #ifdef TARGET_NR_getresgid
2885     case TARGET_NR_getresgid:
2886         {
2887             int rgid, egid, sgid;
2888             ret = get_errno(getresgid(&rgid, &egid, &sgid));
2889             if (!is_error(ret)) {
2890                 *(uint16_t *)arg1 = tswap16(high2lowgid(rgid));
2891                 *(uint16_t *)arg2 = tswap16(high2lowgid(egid));
2892                 *(uint16_t *)arg3 = tswap16(high2lowgid(sgid));
2893             }
2894         }
2895         break;
2896 #endif
2897     case TARGET_NR_chown:
2898         ret = get_errno(chown((const char *)arg1, low2highuid(arg2), low2highgid(arg3)));
2899         break;
2900     case TARGET_NR_setuid:
2901         ret = get_errno(setuid(low2highuid(arg1)));
2902         break;
2903     case TARGET_NR_setgid:
2904         ret = get_errno(setgid(low2highgid(arg1)));
2905         break;
2906     case TARGET_NR_setfsuid:
2907         ret = get_errno(setfsuid(arg1));
2908         break;
2909     case TARGET_NR_setfsgid:
2910         ret = get_errno(setfsgid(arg1));
2911         break;
2912 #endif /* USE_UID16 */
2913
2914 #ifdef TARGET_NR_lchown32
2915     case TARGET_NR_lchown32:
2916         ret = get_errno(lchown((const char *)arg1, arg2, arg3));
2917         break;
2918 #endif
2919 #ifdef TARGET_NR_getuid32
2920     case TARGET_NR_getuid32:
2921         ret = get_errno(getuid());
2922         break;
2923 #endif
2924 #ifdef TARGET_NR_getgid32
2925     case TARGET_NR_getgid32:
2926         ret = get_errno(getgid());
2927         break;
2928 #endif
2929 #ifdef TARGET_NR_geteuid32
2930     case TARGET_NR_geteuid32:
2931         ret = get_errno(geteuid());
2932         break;
2933 #endif
2934 #ifdef TARGET_NR_getegid32
2935     case TARGET_NR_getegid32:
2936         ret = get_errno(getegid());
2937         break;
2938 #endif
2939 #ifdef TARGET_NR_setreuid32
2940     case TARGET_NR_setreuid32:
2941         ret = get_errno(setreuid(arg1, arg2));
2942         break;
2943 #endif
2944 #ifdef TARGET_NR_setregid32
2945     case TARGET_NR_setregid32:
2946         ret = get_errno(setregid(arg1, arg2));
2947         break;
2948 #endif
2949 #ifdef TARGET_NR_getgroups32
2950     case TARGET_NR_getgroups32:
2951         {
2952             int gidsetsize = arg1;
2953             uint32_t *target_grouplist = (void *)arg2;
2954             gid_t *grouplist;
2955             int i;
2956
2957             grouplist = alloca(gidsetsize * sizeof(gid_t));
2958             ret = get_errno(getgroups(gidsetsize, grouplist));
2959             if (!is_error(ret)) {
2960                 for(i = 0;i < gidsetsize; i++)
2961                     put_user(grouplist[i], &target_grouplist[i]);
2962             }
2963         }
2964         break;
2965 #endif
2966 #ifdef TARGET_NR_setgroups32
2967     case TARGET_NR_setgroups32:
2968         {
2969             int gidsetsize = arg1;
2970             uint32_t *target_grouplist = (void *)arg2;
2971             gid_t *grouplist;
2972             int i;
2973
2974             grouplist = alloca(gidsetsize * sizeof(gid_t));
2975             for(i = 0;i < gidsetsize; i++)
2976                 get_user(grouplist[i], &target_grouplist[i]);
2977             ret = get_errno(setgroups(gidsetsize, grouplist));
2978         }
2979         break;
2980 #endif
2981 #ifdef TARGET_NR_fchown32
2982     case TARGET_NR_fchown32:
2983         ret = get_errno(fchown(arg1, arg2, arg3));
2984         break;
2985 #endif
2986 #ifdef TARGET_NR_setresuid32
2987     case TARGET_NR_setresuid32:
2988         ret = get_errno(setresuid(arg1, arg2, arg3));
2989         break;
2990 #endif
2991 #ifdef TARGET_NR_getresuid32
2992     case TARGET_NR_getresuid32:
2993         {
2994             int ruid, euid, suid;
2995             ret = get_errno(getresuid(&ruid, &euid, &suid));
2996             if (!is_error(ret)) {
2997                 *(uint32_t *)arg1 = tswap32(ruid);
2998                 *(uint32_t *)arg2 = tswap32(euid);
2999                 *(uint32_t *)arg3 = tswap32(suid);
3000             }
3001         }
3002         break;
3003 #endif
3004 #ifdef TARGET_NR_setresgid32
3005     case TARGET_NR_setresgid32:
3006         ret = get_errno(setresgid(arg1, arg2, arg3));
3007         break;
3008 #endif
3009 #ifdef TARGET_NR_getresgid32
3010     case TARGET_NR_getresgid32:
3011         {
3012             int rgid, egid, sgid;
3013             ret = get_errno(getresgid(&rgid, &egid, &sgid));
3014             if (!is_error(ret)) {
3015                 *(uint32_t *)arg1 = tswap32(rgid);
3016                 *(uint32_t *)arg2 = tswap32(egid);
3017                 *(uint32_t *)arg3 = tswap32(sgid);
3018             }
3019         }
3020         break;
3021 #endif
3022 #ifdef TARGET_NR_chown32
3023     case TARGET_NR_chown32:
3024         ret = get_errno(chown((const char *)arg1, arg2, arg3));
3025         break;
3026 #endif
3027 #ifdef TARGET_NR_setuid32
3028     case TARGET_NR_setuid32:
3029         ret = get_errno(setuid(arg1));
3030         break;
3031 #endif
3032 #ifdef TARGET_NR_setgid32
3033     case TARGET_NR_setgid32:
3034         ret = get_errno(setgid(arg1));
3035         break;
3036 #endif
3037 #ifdef TARGET_NR_setfsuid32
3038     case TARGET_NR_setfsuid32:
3039         ret = get_errno(setfsuid(arg1));
3040         break;
3041 #endif
3042 #ifdef TARGET_NR_setfsgid32
3043     case TARGET_NR_setfsgid32:
3044         ret = get_errno(setfsgid(arg1));
3045         break;
3046 #endif
3047
3048     case TARGET_NR_pivot_root:
3049         goto unimplemented;
3050 #ifdef TARGET_NR_mincore
3051     case TARGET_NR_mincore:
3052         goto unimplemented;
3053 #endif
3054 #ifdef TARGET_NR_madvise
3055     case TARGET_NR_madvise:
3056         goto unimplemented;
3057 #endif
3058 #if TARGET_LONG_BITS == 32
3059     case TARGET_NR_fcntl64:
3060     {
3061         struct flock64 fl;
3062         struct target_flock64 *target_fl = (void *)arg3;
3063
3064         switch(arg2) {
3065         case F_GETLK64:
3066             ret = get_errno(fcntl(arg1, arg2, &fl));
3067             if (ret == 0) {
3068                 target_fl->l_type = tswap16(fl.l_type);
3069                 target_fl->l_whence = tswap16(fl.l_whence);
3070                 target_fl->l_start = tswap64(fl.l_start);
3071                 target_fl->l_len = tswap64(fl.l_len);
3072                 target_fl->l_pid = tswapl(fl.l_pid);
3073             }
3074             break;
3075
3076         case F_SETLK64:
3077         case F_SETLKW64:
3078             fl.l_type = tswap16(target_fl->l_type);
3079             fl.l_whence = tswap16(target_fl->l_whence);
3080             fl.l_start = tswap64(target_fl->l_start);
3081             fl.l_len = tswap64(target_fl->l_len);
3082             fl.l_pid = tswapl(target_fl->l_pid);
3083             ret = get_errno(fcntl(arg1, arg2, &fl));
3084             break;
3085         default:
3086             ret = get_errno(do_fcntl(arg1, arg2, arg3));
3087             break;
3088         }
3089         break;
3090     }
3091 #endif
3092 #ifdef TARGET_NR_security
3093     case TARGET_NR_security:
3094         goto unimplemented;
3095 #endif
3096 #ifdef TARGET_NR_getpagesize
3097     case TARGET_NR_getpagesize:
3098         ret = TARGET_PAGE_SIZE;
3099         break;
3100 #endif
3101     case TARGET_NR_gettid:
3102         ret = get_errno(gettid());
3103         break;
3104     case TARGET_NR_readahead:
3105         goto unimplemented;
3106 #ifdef TARGET_NR_setxattr
3107     case TARGET_NR_setxattr:
3108     case TARGET_NR_lsetxattr:
3109     case TARGET_NR_fsetxattr:
3110     case TARGET_NR_getxattr:
3111     case TARGET_NR_lgetxattr:
3112     case TARGET_NR_fgetxattr:
3113     case TARGET_NR_listxattr:
3114     case TARGET_NR_llistxattr:
3115     case TARGET_NR_flistxattr:
3116     case TARGET_NR_removexattr:
3117     case TARGET_NR_lremovexattr:
3118     case TARGET_NR_fremovexattr:
3119         goto unimplemented_nowarn;
3120 #endif
3121 #ifdef TARGET_NR_set_thread_area
3122     case TARGET_NR_set_thread_area:
3123     case TARGET_NR_get_thread_area:
3124         goto unimplemented_nowarn;
3125 #endif
3126     default:
3127     unimplemented:
3128         gemu_log("qemu: Unsupported syscall: %d\n", num);
3129 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area)
3130     unimplemented_nowarn:
3131 #endif
3132         ret = -ENOSYS;
3133         break;
3134     }
3135  fail:
3136 #ifdef DEBUG
3137     gemu_log(" = %ld\n", ret);
3138 #endif
3139     return ret;
3140 }
3141