bsd-user/freebsd/os-syscall.c

   1 /*
   2  *  BSD syscalls
   3  *
   4  *  Copyright (c) 2003-2008 Fabrice Bellard
   5  *  Copyright (c) 2013-2014 Stacey D. Son
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20 #include "qemu/osdep.h"
  21 #include "qemu/cutils.h"
  22 #include "qemu/path.h"
  23 #include <sys/syscall.h>
  24 #include <sys/cdefs.h>
  25 #include <sys/param.h>
  26 #include <sys/mount.h>
  27 #include <sys/sysctl.h>
  28 #include <utime.h>
  29
  30 #include "include/gdbstub/syscalls.h"
  31
  32 #include "qemu.h"
  33 #include "signal-common.h"
  34 #include "user/syscall-trace.h"
  35
  36 #include "bsd-file.h"
  37 #include "bsd-proc.h"
  38
  39 /* BSD dependent syscall shims */
  40 #include "os-stat.h"
  41 #include "os-proc.h"
  42
  43 /* I/O */
  44 safe_syscall3(int, open, const char *, path, int, flags, mode_t, mode);
  45 safe_syscall4(int, openat, int, fd, const char *, path, int, flags, mode_t,
  46     mode);
  47
  48 safe_syscall3(ssize_t, read, int, fd, void *, buf, size_t, nbytes);
  49 safe_syscall4(ssize_t, pread, int, fd, void *, buf, size_t, nbytes, off_t,
  50     offset);
  51 safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt);
  52 safe_syscall4(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
  53     off_t, offset);
  54
  55 safe_syscall3(ssize_t, write, int, fd, void *, buf, size_t, nbytes);
  56 safe_syscall4(ssize_t, pwrite, int, fd, void *, buf, size_t, nbytes, off_t,
  57     offset);
  58 safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt);
  59 safe_syscall4(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
  60     off_t, offset);
  61
  62 void target_set_brk(abi_ulong new_brk)
  63 {
  64 }
  65
  66 /*
  67  * errno conversion.
  68  */
  69 abi_long get_errno(abi_long ret)
  70 {
  71     if (ret == -1) {
  72         return -host_to_target_errno(errno);
  73     } else {
  74         return ret;
  75     }
  76 }
  77
  78 int host_to_target_errno(int err)
  79 {
  80     /*
  81      * All the BSDs have the property that the error numbers are uniform across
  82      * all architectures for a given BSD, though they may vary between different
  83      * BSDs.
  84      */
  85     return err;
  86 }
  87
  88 bool is_error(abi_long ret)
  89 {
  90     return (abi_ulong)ret >= (abi_ulong)(-4096);
  91 }
  92
  93 /*
  94  * Unlocks a iovec. Unlike unlock_iovec, it assumes the tvec array itself is
  95  * already locked from target_addr. It will be unlocked as well as all the iovec
  96  * elements.
  97  */
  98 static void helper_unlock_iovec(struct target_iovec *target_vec,
  99                                 abi_ulong target_addr, struct iovec *vec,
 100                                 int count, int copy)
 101 {
 102     for (int i = 0; i < count; i++) {
 103         abi_ulong base = tswapal(target_vec[i].iov_base);
 104
 105         if (vec[i].iov_base) {
 106             unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
 107         }
 108     }
 109     unlock_user(target_vec, target_addr, 0);
 110 }
 111
 112 struct iovec *lock_iovec(int type, abi_ulong target_addr,
 113         int count, int copy)
 114 {
 115     struct target_iovec *target_vec;
 116     struct iovec *vec;
 117     abi_ulong total_len, max_len;
 118     int i;
 119     int err = 0;
 120
 121     if (count == 0) {
 122         errno = 0;
 123         return NULL;
 124     }
 125     if (count < 0 || count > IOV_MAX) {
 126         errno = EINVAL;
 127         return NULL;
 128     }
 129
 130     vec = g_try_new0(struct iovec, count);
 131     if (vec == NULL) {
 132         errno = ENOMEM;
 133         return NULL;
 134     }
 135
 136     target_vec = lock_user(VERIFY_READ, target_addr,
 137                            count * sizeof(struct target_iovec), 1);
 138     if (target_vec == NULL) {
 139         err = EFAULT;
 140         goto fail2;
 141     }
 142
 143     max_len = 0x7fffffff & MIN(TARGET_PAGE_MASK, PAGE_MASK);
 144     total_len = 0;
 145
 146     for (i = 0; i < count; i++) {
 147         abi_ulong base = tswapal(target_vec[i].iov_base);
 148         abi_long len = tswapal(target_vec[i].iov_len);
 149
 150         if (len < 0) {
 151             err = EINVAL;
 152             goto fail;
 153         } else if (len == 0) {
 154             /* Zero length pointer is ignored. */
 155             vec[i].iov_base = 0;
 156         } else {
 157             vec[i].iov_base = lock_user(type, base, len, copy);
 158             /*
 159              * If the first buffer pointer is bad, this is a fault.  But
 160              * subsequent bad buffers will result in a partial write; this is
 161              * realized by filling the vector with null pointers and zero
 162              * lengths.
 163              */
 164             if (!vec[i].iov_base) {
 165                 if (i == 0) {
 166                     err = EFAULT;
 167                     goto fail;
 168                 } else {
 169                     /*
 170                      * Fail all the subsequent addresses, they are already
 171                      * zero'd.
 172                      */
 173                     goto out;
 174                 }
 175             }
 176             if (len > max_len - total_len) {
 177                 len = max_len - total_len;
 178             }
 179         }
 180         vec[i].iov_len = len;
 181         total_len += len;
 182     }
 183 out:
 184     unlock_user(target_vec, target_addr, 0);
 185     return vec;
 186
 187 fail:
 188     helper_unlock_iovec(target_vec, target_addr, vec, i, copy);
 189 fail2:
 190     g_free(vec);
 191     errno = err;
 192     return NULL;
 193 }
 194
 195 void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
 196         int count, int copy)
 197 {
 198     struct target_iovec *target_vec;
 199
 200     target_vec = lock_user(VERIFY_READ, target_addr,
 201                            count * sizeof(struct target_iovec), 1);
 202     if (target_vec) {
 203         helper_unlock_iovec(target_vec, target_addr, vec, count, copy);
 204     }
 205
 206     g_free(vec);
 207 }
 208
 209 /*
 210  * All errnos that freebsd_syscall() returns must be -TARGET_<errcode>.
 211  */
 212 static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
 213                                 abi_long arg2, abi_long arg3, abi_long arg4,
 214                                 abi_long arg5, abi_long arg6, abi_long arg7,
 215                                 abi_long arg8)
 216 {
 217     abi_long ret;
 218
 219     switch (num) {
 220         /*
 221          * process system calls
 222          */
 223     case TARGET_FREEBSD_NR_execve: /* execve(2) */
 224         ret = do_freebsd_execve(arg1, arg2, arg3);
 225         break;
 226
 227     case TARGET_FREEBSD_NR_fexecve: /* fexecve(2) */
 228         ret = do_freebsd_fexecve(arg1, arg2, arg3);
 229         break;
 230
 231     case TARGET_FREEBSD_NR_exit: /* exit(2) */
 232         ret = do_bsd_exit(cpu_env, arg1);
 233         break;
 234
 235     case TARGET_FREEBSD_NR_getgroups: /* getgroups(2) */
 236         ret = do_bsd_getgroups(arg1, arg2);
 237         break;
 238
 239     case TARGET_FREEBSD_NR_setgroups: /* setgroups(2) */
 240         ret = do_bsd_setgroups(arg1, arg2);
 241         break;
 242
 243     case TARGET_FREEBSD_NR_umask: /* umask(2) */
 244         ret = do_bsd_umask(arg1);
 245         break;
 246
 247     case TARGET_FREEBSD_NR_setlogin: /* setlogin(2) */
 248         ret = do_bsd_setlogin(arg1);
 249         break;
 250
 251     case TARGET_FREEBSD_NR_getlogin: /* getlogin(2) */
 252         ret = do_bsd_getlogin(arg1, arg2);
 253         break;
 254
 255     case TARGET_FREEBSD_NR_getrusage: /* getrusage(2) */
 256         ret = do_bsd_getrusage(arg1, arg2);
 257         break;
 258
 259     case TARGET_FREEBSD_NR_getrlimit: /* getrlimit(2) */
 260         ret = do_bsd_getrlimit(arg1, arg2);
 261         break;
 262
 263     case TARGET_FREEBSD_NR_setrlimit: /* setrlimit(2) */
 264         ret = do_bsd_setrlimit(arg1, arg2);
 265         break;
 266
 267     case TARGET_FREEBSD_NR_getpid: /* getpid(2) */
 268         ret = do_bsd_getpid();
 269         break;
 270
 271     case TARGET_FREEBSD_NR_getppid: /* getppid(2) */
 272         ret = do_bsd_getppid();
 273         break;
 274
 275     case TARGET_FREEBSD_NR_getuid: /* getuid(2) */
 276         ret = do_bsd_getuid();
 277         break;
 278
 279     case TARGET_FREEBSD_NR_geteuid: /* geteuid(2) */
 280         ret = do_bsd_geteuid();
 281         break;
 282
 283     case TARGET_FREEBSD_NR_getgid: /* getgid(2) */
 284         ret = do_bsd_getgid();
 285         break;
 286
 287     case TARGET_FREEBSD_NR_getegid: /* getegid(2) */
 288         ret = do_bsd_getegid();
 289         break;
 290
 291     case TARGET_FREEBSD_NR_setuid: /* setuid(2) */
 292         ret = do_bsd_setuid(arg1);
 293         break;
 294
 295     case TARGET_FREEBSD_NR_seteuid: /* seteuid(2) */
 296         ret = do_bsd_seteuid(arg1);
 297         break;
 298
 299     case TARGET_FREEBSD_NR_setgid: /* setgid(2) */
 300         ret = do_bsd_setgid(arg1);
 301         break;
 302
 303     case TARGET_FREEBSD_NR_setegid: /* setegid(2) */
 304         ret = do_bsd_setegid(arg1);
 305         break;
 306
 307     case TARGET_FREEBSD_NR_getpgrp: /* getpgrp(2) */
 308         ret = do_bsd_getpgrp();
 309         break;
 310
 311     case TARGET_FREEBSD_NR_getpgid: /* getpgid(2) */
 312          ret = do_bsd_getpgid(arg1);
 313          break;
 314
 315     case TARGET_FREEBSD_NR_setpgid: /* setpgid(2) */
 316          ret = do_bsd_setpgid(arg1, arg2);
 317          break;
 318
 319     case TARGET_FREEBSD_NR_setreuid: /* setreuid(2) */
 320         ret = do_bsd_setreuid(arg1, arg2);
 321         break;
 322
 323     case TARGET_FREEBSD_NR_setregid: /* setregid(2) */
 324         ret = do_bsd_setregid(arg1, arg2);
 325         break;
 326
 327     case TARGET_FREEBSD_NR_getresuid: /* getresuid(2) */
 328         ret = do_bsd_getresuid(arg1, arg2, arg3);
 329         break;
 330
 331     case TARGET_FREEBSD_NR_getresgid: /* getresgid(2) */
 332         ret = do_bsd_getresgid(arg1, arg2, arg3);
 333         break;
 334
 335     case TARGET_FREEBSD_NR_setresuid: /* setresuid(2) */
 336         ret = do_bsd_setresuid(arg1, arg2, arg3);
 337         break;
 338
 339     case TARGET_FREEBSD_NR_setresgid: /* setresgid(2) */
 340         ret = do_bsd_setresgid(arg1, arg2, arg3);
 341         break;
 342
 343     case TARGET_FREEBSD_NR_getsid: /* getsid(2) */
 344         ret = do_bsd_getsid(arg1);
 345         break;
 346
 347     case TARGET_FREEBSD_NR_setsid: /* setsid(2) */
 348         ret = do_bsd_setsid();
 349         break;
 350
 351     case TARGET_FREEBSD_NR_issetugid: /* issetugid(2) */
 352         ret = do_bsd_issetugid();
 353         break;
 354
 355     case TARGET_FREEBSD_NR_profil: /* profil(2) */
 356         ret = do_bsd_profil(arg1, arg2, arg3, arg4);
 357         break;
 358
 359     case TARGET_FREEBSD_NR_ktrace: /* ktrace(2) */
 360         ret = do_bsd_ktrace(arg1, arg2, arg3, arg4);
 361         break;
 362
 363     case TARGET_FREEBSD_NR_utrace: /* utrace(2) */
 364         ret = do_bsd_utrace(arg1, arg2);
 365         break;
 366
 367     case TARGET_FREEBSD_NR_ptrace: /* ptrace(2) */
 368         ret = do_bsd_ptrace(arg1, arg2, arg3, arg4);
 369         break;
 370
 371     case TARGET_FREEBSD_NR_getpriority: /* getpriority(2) */
 372         ret = do_bsd_getpriority(arg1, arg2);
 373         break;
 374
 375     case TARGET_FREEBSD_NR_setpriority: /* setpriority(2) */
 376         ret = do_bsd_setpriority(arg1, arg2, arg3);
 377         break;
 378
 379     case TARGET_FREEBSD_NR_procctl: /* procctl(2) */
 380         ret = do_freebsd_procctl(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 381         break;
 382
 383         /*
 384          * File system calls.
 385          */
 386     case TARGET_FREEBSD_NR_read: /* read(2) */
 387         ret = do_bsd_read(arg1, arg2, arg3);
 388         break;
 389
 390     case TARGET_FREEBSD_NR_pread: /* pread(2) */
 391         ret = do_bsd_pread(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 392         break;
 393
 394     case TARGET_FREEBSD_NR_readv: /* readv(2) */
 395         ret = do_bsd_readv(arg1, arg2, arg3);
 396         break;
 397
 398     case TARGET_FREEBSD_NR_preadv: /* preadv(2) */
 399         ret = do_bsd_preadv(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 400         break;
 401
 402     case TARGET_FREEBSD_NR_write: /* write(2) */
 403         ret = do_bsd_write(arg1, arg2, arg3);
 404         break;
 405
 406     case TARGET_FREEBSD_NR_pwrite: /* pwrite(2) */
 407         ret = do_bsd_pwrite(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 408         break;
 409
 410     case TARGET_FREEBSD_NR_writev: /* writev(2) */
 411         ret = do_bsd_writev(arg1, arg2, arg3);
 412         break;
 413
 414     case TARGET_FREEBSD_NR_pwritev: /* pwritev(2) */
 415         ret = do_bsd_pwritev(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 416         break;
 417
 418     case TARGET_FREEBSD_NR_open: /* open(2) */
 419         ret = do_bsd_open(arg1, arg2, arg3);
 420         break;
 421
 422     case TARGET_FREEBSD_NR_openat: /* openat(2) */
 423         ret = do_bsd_openat(arg1, arg2, arg3, arg4);
 424         break;
 425
 426     case TARGET_FREEBSD_NR_close: /* close(2) */
 427         ret = do_bsd_close(arg1);
 428         break;
 429
 430     case TARGET_FREEBSD_NR_fdatasync: /* fdatasync(2) */
 431         ret = do_bsd_fdatasync(arg1);
 432         break;
 433
 434     case TARGET_FREEBSD_NR_fsync: /* fsync(2) */
 435         ret = do_bsd_fsync(arg1);
 436         break;
 437
 438     case TARGET_FREEBSD_NR_freebsd12_closefrom: /* closefrom(2) */
 439         ret = do_bsd_closefrom(arg1);
 440         break;
 441
 442     case TARGET_FREEBSD_NR_revoke: /* revoke(2) */
 443         ret = do_bsd_revoke(arg1);
 444         break;
 445
 446     case TARGET_FREEBSD_NR_access: /* access(2) */
 447         ret = do_bsd_access(arg1, arg2);
 448         break;
 449
 450     case TARGET_FREEBSD_NR_eaccess: /* eaccess(2) */
 451         ret = do_bsd_eaccess(arg1, arg2);
 452         break;
 453
 454     case TARGET_FREEBSD_NR_faccessat: /* faccessat(2) */
 455         ret = do_bsd_faccessat(arg1, arg2, arg3, arg4);
 456         break;
 457
 458     case TARGET_FREEBSD_NR_chdir: /* chdir(2) */
 459         ret = do_bsd_chdir(arg1);
 460         break;
 461
 462     case TARGET_FREEBSD_NR_fchdir: /* fchdir(2) */
 463         ret = do_bsd_fchdir(arg1);
 464         break;
 465
 466     case TARGET_FREEBSD_NR_rename: /* rename(2) */
 467         ret = do_bsd_rename(arg1, arg2);
 468         break;
 469
 470     case TARGET_FREEBSD_NR_renameat: /* renameat(2) */
 471         ret = do_bsd_renameat(arg1, arg2, arg3, arg4);
 472         break;
 473
 474     case TARGET_FREEBSD_NR_link: /* link(2) */
 475         ret = do_bsd_link(arg1, arg2);
 476         break;
 477
 478     case TARGET_FREEBSD_NR_linkat: /* linkat(2) */
 479         ret = do_bsd_linkat(arg1, arg2, arg3, arg4, arg5);
 480         break;
 481
 482     case TARGET_FREEBSD_NR_unlink: /* unlink(2) */
 483         ret = do_bsd_unlink(arg1);
 484         break;
 485
 486     case TARGET_FREEBSD_NR_unlinkat: /* unlinkat(2) */
 487         ret = do_bsd_unlinkat(arg1, arg2, arg3);
 488         break;
 489
 490     case TARGET_FREEBSD_NR_mkdir: /* mkdir(2) */
 491         ret = do_bsd_mkdir(arg1, arg2);
 492         break;
 493
 494     case TARGET_FREEBSD_NR_mkdirat: /* mkdirat(2) */
 495         ret = do_bsd_mkdirat(arg1, arg2, arg3);
 496         break;
 497
 498     case TARGET_FREEBSD_NR_rmdir: /* rmdir(2) (XXX no rmdirat()?) */
 499         ret = do_bsd_rmdir(arg1);
 500         break;
 501
 502     case TARGET_FREEBSD_NR___getcwd: /* undocumented __getcwd() */
 503         ret = do_bsd___getcwd(arg1, arg2);
 504         break;
 505
 506     case TARGET_FREEBSD_NR_dup: /* dup(2) */
 507         ret = do_bsd_dup(arg1);
 508         break;
 509
 510     case TARGET_FREEBSD_NR_dup2: /* dup2(2) */
 511         ret = do_bsd_dup2(arg1, arg2);
 512         break;
 513
 514     case TARGET_FREEBSD_NR_truncate: /* truncate(2) */
 515         ret = do_bsd_truncate(cpu_env, arg1, arg2, arg3, arg4);
 516         break;
 517
 518     case TARGET_FREEBSD_NR_ftruncate: /* ftruncate(2) */
 519         ret = do_bsd_ftruncate(cpu_env, arg1, arg2, arg3, arg4);
 520         break;
 521
 522     case TARGET_FREEBSD_NR_acct: /* acct(2) */
 523         ret = do_bsd_acct(arg1);
 524         break;
 525
 526     case TARGET_FREEBSD_NR_sync: /* sync(2) */
 527         ret = do_bsd_sync();
 528         break;
 529
 530     case TARGET_FREEBSD_NR_mount: /* mount(2) */
 531         ret = do_bsd_mount(arg1, arg2, arg3, arg4);
 532         break;
 533
 534     case TARGET_FREEBSD_NR_unmount: /* unmount(2) */
 535         ret = do_bsd_unmount(arg1, arg2);
 536         break;
 537
 538     case TARGET_FREEBSD_NR_nmount: /* nmount(2) */
 539         ret = do_bsd_nmount(arg1, arg2, arg3);
 540         break;
 541
 542     case TARGET_FREEBSD_NR_symlink: /* symlink(2) */
 543         ret = do_bsd_symlink(arg1, arg2);
 544         break;
 545
 546     case TARGET_FREEBSD_NR_symlinkat: /* symlinkat(2) */
 547         ret = do_bsd_symlinkat(arg1, arg2, arg3);
 548         break;
 549
 550     case TARGET_FREEBSD_NR_readlink: /* readlink(2) */
 551         ret = do_bsd_readlink(cpu_env, arg1, arg2, arg3);
 552         break;
 553
 554     case TARGET_FREEBSD_NR_readlinkat: /* readlinkat(2) */
 555         ret = do_bsd_readlinkat(arg1, arg2, arg3, arg4);
 556         break;
 557
 558     case TARGET_FREEBSD_NR_chmod: /* chmod(2) */
 559         ret = do_bsd_chmod(arg1, arg2);
 560         break;
 561
 562     case TARGET_FREEBSD_NR_fchmod: /* fchmod(2) */
 563         ret = do_bsd_fchmod(arg1, arg2);
 564         break;
 565
 566     case TARGET_FREEBSD_NR_lchmod: /* lchmod(2) */
 567         ret = do_bsd_lchmod(arg1, arg2);
 568         break;
 569
 570     case TARGET_FREEBSD_NR_fchmodat: /* fchmodat(2) */
 571         ret = do_bsd_fchmodat(arg1, arg2, arg3, arg4);
 572         break;
 573
 574     case TARGET_FREEBSD_NR_freebsd11_mknod: /* mknod(2) */
 575         ret = do_bsd_freebsd11_mknod(arg1, arg2, arg3);
 576         break;
 577
 578     case TARGET_FREEBSD_NR_freebsd11_mknodat: /* mknodat(2) */
 579         ret = do_bsd_freebsd11_mknodat(arg1, arg2, arg3, arg4);
 580         break;
 581
 582     case TARGET_FREEBSD_NR_mknodat: /* mknodat(2) */
 583         ret = do_bsd_mknodat(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 584         break;
 585
 586     case TARGET_FREEBSD_NR_chown: /* chown(2) */
 587         ret = do_bsd_chown(arg1, arg2, arg3);
 588         break;
 589
 590     case TARGET_FREEBSD_NR_fchown: /* fchown(2) */
 591         ret = do_bsd_fchown(arg1, arg2, arg3);
 592         break;
 593
 594     case TARGET_FREEBSD_NR_lchown: /* lchown(2) */
 595         ret = do_bsd_lchown(arg1, arg2, arg3);
 596         break;
 597
 598     case TARGET_FREEBSD_NR_fchownat: /* fchownat(2) */
 599         ret = do_bsd_fchownat(arg1, arg2, arg3, arg4, arg5);
 600         break;
 601
 602     case TARGET_FREEBSD_NR_chflags: /* chflags(2) */
 603         ret = do_bsd_chflags(arg1, arg2);
 604         break;
 605
 606     case TARGET_FREEBSD_NR_lchflags: /* lchflags(2) */
 607         ret = do_bsd_lchflags(arg1, arg2);
 608         break;
 609
 610     case TARGET_FREEBSD_NR_fchflags: /* fchflags(2) */
 611         ret = do_bsd_fchflags(arg1, arg2);
 612         break;
 613
 614     case TARGET_FREEBSD_NR_chroot: /* chroot(2) */
 615         ret = do_bsd_chroot(arg1);
 616         break;
 617
 618     case TARGET_FREEBSD_NR_flock: /* flock(2) */
 619         ret = do_bsd_flock(arg1, arg2);
 620         break;
 621
 622     case TARGET_FREEBSD_NR_mkfifo: /* mkfifo(2) */
 623         ret = do_bsd_mkfifo(arg1, arg2);
 624         break;
 625
 626     case TARGET_FREEBSD_NR_mkfifoat: /* mkfifoat(2) */
 627         ret = do_bsd_mkfifoat(arg1, arg2, arg3);
 628         break;
 629
 630     case TARGET_FREEBSD_NR_pathconf: /* pathconf(2) */
 631         ret = do_bsd_pathconf(arg1, arg2);
 632         break;
 633
 634     case TARGET_FREEBSD_NR_lpathconf: /* lpathconf(2) */
 635         ret = do_bsd_lpathconf(arg1, arg2);
 636         break;
 637
 638     case TARGET_FREEBSD_NR_fpathconf: /* fpathconf(2) */
 639         ret = do_bsd_fpathconf(arg1, arg2);
 640         break;
 641
 642     case TARGET_FREEBSD_NR_undelete: /* undelete(2) */
 643         ret = do_bsd_undelete(arg1);
 644         break;
 645
 646         /*
 647          * stat system calls
 648          */
 649     case TARGET_FREEBSD_NR_freebsd11_stat: /* stat(2) */
 650         ret = do_freebsd11_stat(arg1, arg2);
 651         break;
 652
 653     case TARGET_FREEBSD_NR_freebsd11_lstat: /* lstat(2) */
 654         ret = do_freebsd11_lstat(arg1, arg2);
 655         break;
 656
 657     case TARGET_FREEBSD_NR_freebsd11_fstat: /* fstat(2) */
 658         ret = do_freebsd11_fstat(arg1, arg2);
 659         break;
 660
 661     case TARGET_FREEBSD_NR_fstat: /* fstat(2) */
 662         ret = do_freebsd_fstat(arg1, arg2);
 663         break;
 664
 665     case TARGET_FREEBSD_NR_freebsd11_fstatat: /* fstatat(2) */
 666         ret = do_freebsd11_fstatat(arg1, arg2, arg3, arg4);
 667         break;
 668
 669     case TARGET_FREEBSD_NR_fstatat: /* fstatat(2) */
 670         ret = do_freebsd_fstatat(arg1, arg2, arg3, arg4);
 671         break;
 672
 673     case TARGET_FREEBSD_NR_freebsd11_nstat: /* undocumented */
 674         ret = do_freebsd11_nstat(arg1, arg2);
 675         break;
 676
 677     case TARGET_FREEBSD_NR_freebsd11_nfstat: /* undocumented */
 678         ret = do_freebsd11_nfstat(arg1, arg2);
 679         break;
 680
 681     case TARGET_FREEBSD_NR_freebsd11_nlstat: /* undocumented */
 682         ret = do_freebsd11_nlstat(arg1, arg2);
 683         break;
 684
 685     case TARGET_FREEBSD_NR_getfh: /* getfh(2) */
 686         ret = do_freebsd_getfh(arg1, arg2);
 687         break;
 688
 689     case TARGET_FREEBSD_NR_lgetfh: /* lgetfh(2) */
 690         ret = do_freebsd_lgetfh(arg1, arg2);
 691         break;
 692
 693     case TARGET_FREEBSD_NR_fhopen: /* fhopen(2) */
 694         ret = do_freebsd_fhopen(arg1, arg2);
 695         break;
 696
 697     case TARGET_FREEBSD_NR_freebsd11_fhstat: /* fhstat(2) */
 698         ret = do_freebsd11_fhstat(arg1, arg2);
 699         break;
 700
 701     case TARGET_FREEBSD_NR_fhstat: /* fhstat(2) */
 702         ret = do_freebsd_fhstat(arg1, arg2);
 703         break;
 704
 705     case TARGET_FREEBSD_NR_freebsd11_fhstatfs: /* fhstatfs(2) */
 706         ret = do_freebsd11_fhstatfs(arg1, arg2);
 707         break;
 708
 709     case TARGET_FREEBSD_NR_fhstatfs: /* fhstatfs(2) */
 710         ret = do_freebsd_fhstatfs(arg1, arg2);
 711         break;
 712
 713     case TARGET_FREEBSD_NR_freebsd11_statfs: /* statfs(2) */
 714         ret = do_freebsd11_statfs(arg1, arg2);
 715         break;
 716
 717     case TARGET_FREEBSD_NR_statfs: /* statfs(2) */
 718         ret = do_freebsd_statfs(arg1, arg2);
 719         break;
 720
 721     case TARGET_FREEBSD_NR_freebsd11_fstatfs: /* fstatfs(2) */
 722         ret = do_freebsd11_fstatfs(arg1, arg2);
 723         break;
 724
 725     case TARGET_FREEBSD_NR_fstatfs: /* fstatfs(2) */
 726         ret = do_freebsd_fstatfs(arg1, arg2);
 727         break;
 728
 729     case TARGET_FREEBSD_NR_freebsd11_getfsstat: /* getfsstat(2) */
 730         ret = do_freebsd11_getfsstat(arg1, arg2, arg3);
 731         break;
 732
 733     case TARGET_FREEBSD_NR_getfsstat: /* getfsstat(2) */
 734         ret = do_freebsd_getfsstat(arg1, arg2, arg3);
 735         break;
 736
 737     case TARGET_FREEBSD_NR_freebsd11_getdents: /* getdents(2) */
 738         ret = do_freebsd11_getdents(arg1, arg2, arg3);
 739         break;
 740
 741     case TARGET_FREEBSD_NR_getdirentries: /* getdirentries(2) */
 742         ret = do_freebsd_getdirentries(arg1, arg2, arg3, arg4);
 743         break;
 744
 745     case TARGET_FREEBSD_NR_freebsd11_getdirentries: /* getdirentries(2) */
 746         ret = do_freebsd11_getdirentries(arg1, arg2, arg3, arg4);
 747         break;
 748     case TARGET_FREEBSD_NR_fcntl: /* fcntl(2) */
 749         ret = do_freebsd_fcntl(arg1, arg2, arg3);
 750         break;
 751
 752
 753         /*
 754          * sys{ctl, arch, call}
 755          */
 756     case TARGET_FREEBSD_NR___sysctl: /* sysctl(3) */
 757         ret = do_freebsd_sysctl(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 758         break;
 759
 760     case TARGET_FREEBSD_NR___sysctlbyname: /* sysctlbyname(2) */
 761         ret = do_freebsd_sysctlbyname(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 762         break;
 763
 764     case TARGET_FREEBSD_NR_sysarch: /* sysarch(2) */
 765         ret = do_freebsd_sysarch(cpu_env, arg1, arg2);
 766         break;
 767
 768     default:
 769         qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
 770         ret = -TARGET_ENOSYS;
 771         break;
 772     }
 773
 774     return ret;
 775 }
 776
 777 /*
 778  * do_freebsd_syscall() should always have a single exit point at the end so
 779  * that actions, such as logging of syscall results, can be performed. This
 780  * as a wrapper around freebsd_syscall() so that actually happens. Since
 781  * that is a singleton, modern compilers will inline it anyway...
 782  */
 783 abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
 784                             abi_long arg2, abi_long arg3, abi_long arg4,
 785                             abi_long arg5, abi_long arg6, abi_long arg7,
 786                             abi_long arg8)
 787 {
 788     abi_long ret;
 789
 790     if (do_strace) {
 791         print_freebsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
 792     }
 793
 794     ret = freebsd_syscall(cpu_env, num, arg1, arg2, arg3, arg4, arg5, arg6,
 795                           arg7, arg8);
 796     if (do_strace) {
 797         print_freebsd_syscall_ret(num, ret);
 798     }
 799
 800     return ret;
 801 }
 802
 803 void syscall_init(void)
 804 {
 805 }