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 /* BSD independent syscall shims */
  37 #include "bsd-file.h"
  38 #include "bsd-mem.h"
  39 #include "bsd-proc.h"
  40
  41 /* BSD dependent syscall shims */
  42 #include "os-stat.h"
  43 #include "os-proc.h"
  44 #include "os-misc.h"
  45
  46 /* I/O */
  47 safe_syscall3(int, open, const char *, path, int, flags, mode_t, mode);
  48 safe_syscall4(int, openat, int, fd, const char *, path, int, flags, mode_t,
  49     mode);
  50
  51 safe_syscall3(ssize_t, read, int, fd, void *, buf, size_t, nbytes);
  52 safe_syscall4(ssize_t, pread, int, fd, void *, buf, size_t, nbytes, off_t,
  53     offset);
  54 safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt);
  55 safe_syscall4(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
  56     off_t, offset);
  57
  58 safe_syscall3(ssize_t, write, int, fd, void *, buf, size_t, nbytes);
  59 safe_syscall4(ssize_t, pwrite, int, fd, void *, buf, size_t, nbytes, off_t,
  60     offset);
  61 safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt);
  62 safe_syscall4(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
  63     off_t, offset);
  64
  65 /* used in os-proc */
  66 safe_syscall4(pid_t, wait4, pid_t, wpid, int *, status, int, options,
  67     struct rusage *, rusage);
  68 safe_syscall6(pid_t, wait6, idtype_t, idtype, id_t, id, int *, status, int,
  69     options, struct __wrusage *, wrusage, siginfo_t *, infop);
  70
  71 /*
  72  * errno conversion.
  73  */
  74 abi_long get_errno(abi_long ret)
  75 {
  76     if (ret == -1) {
  77         return -host_to_target_errno(errno);
  78     } else {
  79         return ret;
  80     }
  81 }
  82
  83 int host_to_target_errno(int err)
  84 {
  85     /*
  86      * All the BSDs have the property that the error numbers are uniform across
  87      * all architectures for a given BSD, though they may vary between different
  88      * BSDs.
  89      */
  90     return err;
  91 }
  92
  93 bool is_error(abi_long ret)
  94 {
  95     return (abi_ulong)ret >= (abi_ulong)(-4096);
  96 }
  97
  98 /*
  99  * Unlocks a iovec. Unlike unlock_iovec, it assumes the tvec array itself is
 100  * already locked from target_addr. It will be unlocked as well as all the iovec
 101  * elements.
 102  */
 103 static void helper_unlock_iovec(struct target_iovec *target_vec,
 104                                 abi_ulong target_addr, struct iovec *vec,
 105                                 int count, int copy)
 106 {
 107     for (int i = 0; i < count; i++) {
 108         abi_ulong base = tswapal(target_vec[i].iov_base);
 109
 110         if (vec[i].iov_base) {
 111             unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
 112         }
 113     }
 114     unlock_user(target_vec, target_addr, 0);
 115 }
 116
 117 struct iovec *lock_iovec(int type, abi_ulong target_addr,
 118         int count, int copy)
 119 {
 120     struct target_iovec *target_vec;
 121     struct iovec *vec;
 122     abi_ulong total_len, max_len;
 123     int i;
 124     int err = 0;
 125
 126     if (count == 0) {
 127         errno = 0;
 128         return NULL;
 129     }
 130     if (count < 0 || count > IOV_MAX) {
 131         errno = EINVAL;
 132         return NULL;
 133     }
 134
 135     vec = g_try_new0(struct iovec, count);
 136     if (vec == NULL) {
 137         errno = ENOMEM;
 138         return NULL;
 139     }
 140
 141     target_vec = lock_user(VERIFY_READ, target_addr,
 142                            count * sizeof(struct target_iovec), 1);
 143     if (target_vec == NULL) {
 144         err = EFAULT;
 145         goto fail2;
 146     }
 147
 148     max_len = 0x7fffffff & MIN(TARGET_PAGE_MASK, PAGE_MASK);
 149     total_len = 0;
 150
 151     for (i = 0; i < count; i++) {
 152         abi_ulong base = tswapal(target_vec[i].iov_base);
 153         abi_long len = tswapal(target_vec[i].iov_len);
 154
 155         if (len < 0) {
 156             err = EINVAL;
 157             goto fail;
 158         } else if (len == 0) {
 159             /* Zero length pointer is ignored. */
 160             vec[i].iov_base = 0;
 161         } else {
 162             vec[i].iov_base = lock_user(type, base, len, copy);
 163             /*
 164              * If the first buffer pointer is bad, this is a fault.  But
 165              * subsequent bad buffers will result in a partial write; this is
 166              * realized by filling the vector with null pointers and zero
 167              * lengths.
 168              */
 169             if (!vec[i].iov_base) {
 170                 if (i == 0) {
 171                     err = EFAULT;
 172                     goto fail;
 173                 } else {
 174                     /*
 175                      * Fail all the subsequent addresses, they are already
 176                      * zero'd.
 177                      */
 178                     goto out;
 179                 }
 180             }
 181             if (len > max_len - total_len) {
 182                 len = max_len - total_len;
 183             }
 184         }
 185         vec[i].iov_len = len;
 186         total_len += len;
 187     }
 188 out:
 189     unlock_user(target_vec, target_addr, 0);
 190     return vec;
 191
 192 fail:
 193     helper_unlock_iovec(target_vec, target_addr, vec, i, copy);
 194 fail2:
 195     g_free(vec);
 196     errno = err;
 197     return NULL;
 198 }
 199
 200 void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
 201         int count, int copy)
 202 {
 203     struct target_iovec *target_vec;
 204
 205     target_vec = lock_user(VERIFY_READ, target_addr,
 206                            count * sizeof(struct target_iovec), 1);
 207     if (target_vec) {
 208         helper_unlock_iovec(target_vec, target_addr, vec, count, copy);
 209     }
 210
 211     g_free(vec);
 212 }
 213
 214 /*
 215  * All errnos that freebsd_syscall() returns must be -TARGET_<errcode>.
 216  */
 217 static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
 218                                 abi_long arg2, abi_long arg3, abi_long arg4,
 219                                 abi_long arg5, abi_long arg6, abi_long arg7,
 220                                 abi_long arg8)
 221 {
 222     abi_long ret;
 223
 224     switch (num) {
 225         /*
 226          * process system calls
 227          */
 228     case TARGET_FREEBSD_NR_fork: /* fork(2) */
 229         ret = do_freebsd_fork(cpu_env);
 230         break;
 231
 232     case TARGET_FREEBSD_NR_vfork: /* vfork(2) */
 233         ret = do_freebsd_vfork(cpu_env);
 234         break;
 235
 236     case TARGET_FREEBSD_NR_rfork: /* rfork(2) */
 237         ret = do_freebsd_rfork(cpu_env, arg1);
 238         break;
 239
 240     case TARGET_FREEBSD_NR_pdfork: /* pdfork(2) */
 241         ret = do_freebsd_pdfork(cpu_env, arg1, arg2);
 242         break;
 243
 244     case TARGET_FREEBSD_NR_execve: /* execve(2) */
 245         ret = do_freebsd_execve(arg1, arg2, arg3);
 246         break;
 247
 248     case TARGET_FREEBSD_NR_fexecve: /* fexecve(2) */
 249         ret = do_freebsd_fexecve(arg1, arg2, arg3);
 250         break;
 251
 252     case TARGET_FREEBSD_NR_wait4: /* wait4(2) */
 253         ret = do_freebsd_wait4(arg1, arg2, arg3, arg4);
 254         break;
 255
 256     case TARGET_FREEBSD_NR_wait6: /* wait6(2) */
 257         ret = do_freebsd_wait6(cpu_env, arg1, arg2, arg3,
 258                                arg4, arg5, arg6, arg7, arg8);
 259         break;
 260
 261     case TARGET_FREEBSD_NR_exit: /* exit(2) */
 262         ret = do_bsd_exit(cpu_env, arg1);
 263         break;
 264
 265     case TARGET_FREEBSD_NR_getgroups: /* getgroups(2) */
 266         ret = do_bsd_getgroups(arg1, arg2);
 267         break;
 268
 269     case TARGET_FREEBSD_NR_setgroups: /* setgroups(2) */
 270         ret = do_bsd_setgroups(arg1, arg2);
 271         break;
 272
 273     case TARGET_FREEBSD_NR_umask: /* umask(2) */
 274         ret = do_bsd_umask(arg1);
 275         break;
 276
 277     case TARGET_FREEBSD_NR_setlogin: /* setlogin(2) */
 278         ret = do_bsd_setlogin(arg1);
 279         break;
 280
 281     case TARGET_FREEBSD_NR_getlogin: /* getlogin(2) */
 282         ret = do_bsd_getlogin(arg1, arg2);
 283         break;
 284
 285     case TARGET_FREEBSD_NR_getrusage: /* getrusage(2) */
 286         ret = do_bsd_getrusage(arg1, arg2);
 287         break;
 288
 289     case TARGET_FREEBSD_NR_getrlimit: /* getrlimit(2) */
 290         ret = do_bsd_getrlimit(arg1, arg2);
 291         break;
 292
 293     case TARGET_FREEBSD_NR_setrlimit: /* setrlimit(2) */
 294         ret = do_bsd_setrlimit(arg1, arg2);
 295         break;
 296
 297     case TARGET_FREEBSD_NR_getpid: /* getpid(2) */
 298         ret = do_bsd_getpid();
 299         break;
 300
 301     case TARGET_FREEBSD_NR_getppid: /* getppid(2) */
 302         ret = do_bsd_getppid();
 303         break;
 304
 305     case TARGET_FREEBSD_NR_getuid: /* getuid(2) */
 306         ret = do_bsd_getuid();
 307         break;
 308
 309     case TARGET_FREEBSD_NR_geteuid: /* geteuid(2) */
 310         ret = do_bsd_geteuid();
 311         break;
 312
 313     case TARGET_FREEBSD_NR_getgid: /* getgid(2) */
 314         ret = do_bsd_getgid();
 315         break;
 316
 317     case TARGET_FREEBSD_NR_getegid: /* getegid(2) */
 318         ret = do_bsd_getegid();
 319         break;
 320
 321     case TARGET_FREEBSD_NR_setuid: /* setuid(2) */
 322         ret = do_bsd_setuid(arg1);
 323         break;
 324
 325     case TARGET_FREEBSD_NR_seteuid: /* seteuid(2) */
 326         ret = do_bsd_seteuid(arg1);
 327         break;
 328
 329     case TARGET_FREEBSD_NR_setgid: /* setgid(2) */
 330         ret = do_bsd_setgid(arg1);
 331         break;
 332
 333     case TARGET_FREEBSD_NR_setegid: /* setegid(2) */
 334         ret = do_bsd_setegid(arg1);
 335         break;
 336
 337     case TARGET_FREEBSD_NR_getpgrp: /* getpgrp(2) */
 338         ret = do_bsd_getpgrp();
 339         break;
 340
 341     case TARGET_FREEBSD_NR_getpgid: /* getpgid(2) */
 342          ret = do_bsd_getpgid(arg1);
 343          break;
 344
 345     case TARGET_FREEBSD_NR_setpgid: /* setpgid(2) */
 346          ret = do_bsd_setpgid(arg1, arg2);
 347          break;
 348
 349     case TARGET_FREEBSD_NR_setreuid: /* setreuid(2) */
 350         ret = do_bsd_setreuid(arg1, arg2);
 351         break;
 352
 353     case TARGET_FREEBSD_NR_setregid: /* setregid(2) */
 354         ret = do_bsd_setregid(arg1, arg2);
 355         break;
 356
 357     case TARGET_FREEBSD_NR_getresuid: /* getresuid(2) */
 358         ret = do_bsd_getresuid(arg1, arg2, arg3);
 359         break;
 360
 361     case TARGET_FREEBSD_NR_getresgid: /* getresgid(2) */
 362         ret = do_bsd_getresgid(arg1, arg2, arg3);
 363         break;
 364
 365     case TARGET_FREEBSD_NR_setresuid: /* setresuid(2) */
 366         ret = do_bsd_setresuid(arg1, arg2, arg3);
 367         break;
 368
 369     case TARGET_FREEBSD_NR_setresgid: /* setresgid(2) */
 370         ret = do_bsd_setresgid(arg1, arg2, arg3);
 371         break;
 372
 373     case TARGET_FREEBSD_NR_getsid: /* getsid(2) */
 374         ret = do_bsd_getsid(arg1);
 375         break;
 376
 377     case TARGET_FREEBSD_NR_setsid: /* setsid(2) */
 378         ret = do_bsd_setsid();
 379         break;
 380
 381     case TARGET_FREEBSD_NR_issetugid: /* issetugid(2) */
 382         ret = do_bsd_issetugid();
 383         break;
 384
 385     case TARGET_FREEBSD_NR_profil: /* profil(2) */
 386         ret = do_bsd_profil(arg1, arg2, arg3, arg4);
 387         break;
 388
 389     case TARGET_FREEBSD_NR_ktrace: /* ktrace(2) */
 390         ret = do_bsd_ktrace(arg1, arg2, arg3, arg4);
 391         break;
 392
 393     case TARGET_FREEBSD_NR_setloginclass: /* setloginclass(2) */
 394         ret = do_freebsd_setloginclass(arg1);
 395         break;
 396
 397     case TARGET_FREEBSD_NR_getloginclass: /* getloginclass(2) */
 398         ret = do_freebsd_getloginclass(arg1, arg2);
 399         break;
 400
 401     case TARGET_FREEBSD_NR_pdgetpid: /* pdgetpid(2) */
 402         ret = do_freebsd_pdgetpid(arg1, arg2);
 403         break;
 404
 405     case TARGET_FREEBSD_NR___setugid: /* undocumented */
 406         ret = do_freebsd___setugid(arg1);
 407         break;
 408
 409     case TARGET_FREEBSD_NR_utrace: /* utrace(2) */
 410         ret = do_bsd_utrace(arg1, arg2);
 411         break;
 412
 413     case TARGET_FREEBSD_NR_ptrace: /* ptrace(2) */
 414         ret = do_bsd_ptrace(arg1, arg2, arg3, arg4);
 415         break;
 416
 417     case TARGET_FREEBSD_NR_getpriority: /* getpriority(2) */
 418         ret = do_bsd_getpriority(arg1, arg2);
 419         break;
 420
 421     case TARGET_FREEBSD_NR_setpriority: /* setpriority(2) */
 422         ret = do_bsd_setpriority(arg1, arg2, arg3);
 423         break;
 424
 425     case TARGET_FREEBSD_NR_procctl: /* procctl(2) */
 426         ret = do_freebsd_procctl(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 427         break;
 428
 429         /*
 430          * File system calls.
 431          */
 432     case TARGET_FREEBSD_NR_read: /* read(2) */
 433         ret = do_bsd_read(arg1, arg2, arg3);
 434         break;
 435
 436     case TARGET_FREEBSD_NR_pread: /* pread(2) */
 437         ret = do_bsd_pread(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 438         break;
 439
 440     case TARGET_FREEBSD_NR_readv: /* readv(2) */
 441         ret = do_bsd_readv(arg1, arg2, arg3);
 442         break;
 443
 444     case TARGET_FREEBSD_NR_preadv: /* preadv(2) */
 445         ret = do_bsd_preadv(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 446         break;
 447
 448     case TARGET_FREEBSD_NR_write: /* write(2) */
 449         ret = do_bsd_write(arg1, arg2, arg3);
 450         break;
 451
 452     case TARGET_FREEBSD_NR_pwrite: /* pwrite(2) */
 453         ret = do_bsd_pwrite(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 454         break;
 455
 456     case TARGET_FREEBSD_NR_writev: /* writev(2) */
 457         ret = do_bsd_writev(arg1, arg2, arg3);
 458         break;
 459
 460     case TARGET_FREEBSD_NR_pwritev: /* pwritev(2) */
 461         ret = do_bsd_pwritev(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 462         break;
 463
 464     case TARGET_FREEBSD_NR_open: /* open(2) */
 465         ret = do_bsd_open(arg1, arg2, arg3);
 466         break;
 467
 468     case TARGET_FREEBSD_NR_openat: /* openat(2) */
 469         ret = do_bsd_openat(arg1, arg2, arg3, arg4);
 470         break;
 471
 472     case TARGET_FREEBSD_NR_close: /* close(2) */
 473         ret = do_bsd_close(arg1);
 474         break;
 475
 476     case TARGET_FREEBSD_NR_fdatasync: /* fdatasync(2) */
 477         ret = do_bsd_fdatasync(arg1);
 478         break;
 479
 480     case TARGET_FREEBSD_NR_fsync: /* fsync(2) */
 481         ret = do_bsd_fsync(arg1);
 482         break;
 483
 484     case TARGET_FREEBSD_NR_freebsd12_closefrom: /* closefrom(2) */
 485         ret = do_bsd_closefrom(arg1);
 486         break;
 487
 488     case TARGET_FREEBSD_NR_revoke: /* revoke(2) */
 489         ret = do_bsd_revoke(arg1);
 490         break;
 491
 492     case TARGET_FREEBSD_NR_access: /* access(2) */
 493         ret = do_bsd_access(arg1, arg2);
 494         break;
 495
 496     case TARGET_FREEBSD_NR_eaccess: /* eaccess(2) */
 497         ret = do_bsd_eaccess(arg1, arg2);
 498         break;
 499
 500     case TARGET_FREEBSD_NR_faccessat: /* faccessat(2) */
 501         ret = do_bsd_faccessat(arg1, arg2, arg3, arg4);
 502         break;
 503
 504     case TARGET_FREEBSD_NR_chdir: /* chdir(2) */
 505         ret = do_bsd_chdir(arg1);
 506         break;
 507
 508     case TARGET_FREEBSD_NR_fchdir: /* fchdir(2) */
 509         ret = do_bsd_fchdir(arg1);
 510         break;
 511
 512     case TARGET_FREEBSD_NR_rename: /* rename(2) */
 513         ret = do_bsd_rename(arg1, arg2);
 514         break;
 515
 516     case TARGET_FREEBSD_NR_renameat: /* renameat(2) */
 517         ret = do_bsd_renameat(arg1, arg2, arg3, arg4);
 518         break;
 519
 520     case TARGET_FREEBSD_NR_link: /* link(2) */
 521         ret = do_bsd_link(arg1, arg2);
 522         break;
 523
 524     case TARGET_FREEBSD_NR_linkat: /* linkat(2) */
 525         ret = do_bsd_linkat(arg1, arg2, arg3, arg4, arg5);
 526         break;
 527
 528     case TARGET_FREEBSD_NR_unlink: /* unlink(2) */
 529         ret = do_bsd_unlink(arg1);
 530         break;
 531
 532     case TARGET_FREEBSD_NR_unlinkat: /* unlinkat(2) */
 533         ret = do_bsd_unlinkat(arg1, arg2, arg3);
 534         break;
 535
 536     case TARGET_FREEBSD_NR_mkdir: /* mkdir(2) */
 537         ret = do_bsd_mkdir(arg1, arg2);
 538         break;
 539
 540     case TARGET_FREEBSD_NR_mkdirat: /* mkdirat(2) */
 541         ret = do_bsd_mkdirat(arg1, arg2, arg3);
 542         break;
 543
 544     case TARGET_FREEBSD_NR_rmdir: /* rmdir(2) (XXX no rmdirat()?) */
 545         ret = do_bsd_rmdir(arg1);
 546         break;
 547
 548     case TARGET_FREEBSD_NR___getcwd: /* undocumented __getcwd() */
 549         ret = do_bsd___getcwd(arg1, arg2);
 550         break;
 551
 552     case TARGET_FREEBSD_NR_dup: /* dup(2) */
 553         ret = do_bsd_dup(arg1);
 554         break;
 555
 556     case TARGET_FREEBSD_NR_dup2: /* dup2(2) */
 557         ret = do_bsd_dup2(arg1, arg2);
 558         break;
 559
 560     case TARGET_FREEBSD_NR_truncate: /* truncate(2) */
 561         ret = do_bsd_truncate(cpu_env, arg1, arg2, arg3, arg4);
 562         break;
 563
 564     case TARGET_FREEBSD_NR_ftruncate: /* ftruncate(2) */
 565         ret = do_bsd_ftruncate(cpu_env, arg1, arg2, arg3, arg4);
 566         break;
 567
 568     case TARGET_FREEBSD_NR_acct: /* acct(2) */
 569         ret = do_bsd_acct(arg1);
 570         break;
 571
 572     case TARGET_FREEBSD_NR_sync: /* sync(2) */
 573         ret = do_bsd_sync();
 574         break;
 575
 576     case TARGET_FREEBSD_NR_mount: /* mount(2) */
 577         ret = do_bsd_mount(arg1, arg2, arg3, arg4);
 578         break;
 579
 580     case TARGET_FREEBSD_NR_unmount: /* unmount(2) */
 581         ret = do_bsd_unmount(arg1, arg2);
 582         break;
 583
 584     case TARGET_FREEBSD_NR_nmount: /* nmount(2) */
 585         ret = do_bsd_nmount(arg1, arg2, arg3);
 586         break;
 587
 588     case TARGET_FREEBSD_NR_symlink: /* symlink(2) */
 589         ret = do_bsd_symlink(arg1, arg2);
 590         break;
 591
 592     case TARGET_FREEBSD_NR_symlinkat: /* symlinkat(2) */
 593         ret = do_bsd_symlinkat(arg1, arg2, arg3);
 594         break;
 595
 596     case TARGET_FREEBSD_NR_readlink: /* readlink(2) */
 597         ret = do_bsd_readlink(cpu_env, arg1, arg2, arg3);
 598         break;
 599
 600     case TARGET_FREEBSD_NR_readlinkat: /* readlinkat(2) */
 601         ret = do_bsd_readlinkat(arg1, arg2, arg3, arg4);
 602         break;
 603
 604     case TARGET_FREEBSD_NR_chmod: /* chmod(2) */
 605         ret = do_bsd_chmod(arg1, arg2);
 606         break;
 607
 608     case TARGET_FREEBSD_NR_fchmod: /* fchmod(2) */
 609         ret = do_bsd_fchmod(arg1, arg2);
 610         break;
 611
 612     case TARGET_FREEBSD_NR_lchmod: /* lchmod(2) */
 613         ret = do_bsd_lchmod(arg1, arg2);
 614         break;
 615
 616     case TARGET_FREEBSD_NR_fchmodat: /* fchmodat(2) */
 617         ret = do_bsd_fchmodat(arg1, arg2, arg3, arg4);
 618         break;
 619
 620     case TARGET_FREEBSD_NR_freebsd11_mknod: /* mknod(2) */
 621         ret = do_bsd_freebsd11_mknod(arg1, arg2, arg3);
 622         break;
 623
 624     case TARGET_FREEBSD_NR_freebsd11_mknodat: /* mknodat(2) */
 625         ret = do_bsd_freebsd11_mknodat(arg1, arg2, arg3, arg4);
 626         break;
 627
 628     case TARGET_FREEBSD_NR_mknodat: /* mknodat(2) */
 629         ret = do_bsd_mknodat(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 630         break;
 631
 632     case TARGET_FREEBSD_NR_chown: /* chown(2) */
 633         ret = do_bsd_chown(arg1, arg2, arg3);
 634         break;
 635
 636     case TARGET_FREEBSD_NR_fchown: /* fchown(2) */
 637         ret = do_bsd_fchown(arg1, arg2, arg3);
 638         break;
 639
 640     case TARGET_FREEBSD_NR_lchown: /* lchown(2) */
 641         ret = do_bsd_lchown(arg1, arg2, arg3);
 642         break;
 643
 644     case TARGET_FREEBSD_NR_fchownat: /* fchownat(2) */
 645         ret = do_bsd_fchownat(arg1, arg2, arg3, arg4, arg5);
 646         break;
 647
 648     case TARGET_FREEBSD_NR_chflags: /* chflags(2) */
 649         ret = do_bsd_chflags(arg1, arg2);
 650         break;
 651
 652     case TARGET_FREEBSD_NR_lchflags: /* lchflags(2) */
 653         ret = do_bsd_lchflags(arg1, arg2);
 654         break;
 655
 656     case TARGET_FREEBSD_NR_fchflags: /* fchflags(2) */
 657         ret = do_bsd_fchflags(arg1, arg2);
 658         break;
 659
 660     case TARGET_FREEBSD_NR_chroot: /* chroot(2) */
 661         ret = do_bsd_chroot(arg1);
 662         break;
 663
 664     case TARGET_FREEBSD_NR_flock: /* flock(2) */
 665         ret = do_bsd_flock(arg1, arg2);
 666         break;
 667
 668     case TARGET_FREEBSD_NR_mkfifo: /* mkfifo(2) */
 669         ret = do_bsd_mkfifo(arg1, arg2);
 670         break;
 671
 672     case TARGET_FREEBSD_NR_mkfifoat: /* mkfifoat(2) */
 673         ret = do_bsd_mkfifoat(arg1, arg2, arg3);
 674         break;
 675
 676     case TARGET_FREEBSD_NR_pathconf: /* pathconf(2) */
 677         ret = do_bsd_pathconf(arg1, arg2);
 678         break;
 679
 680     case TARGET_FREEBSD_NR_lpathconf: /* lpathconf(2) */
 681         ret = do_bsd_lpathconf(arg1, arg2);
 682         break;
 683
 684     case TARGET_FREEBSD_NR_fpathconf: /* fpathconf(2) */
 685         ret = do_bsd_fpathconf(arg1, arg2);
 686         break;
 687
 688     case TARGET_FREEBSD_NR_undelete: /* undelete(2) */
 689         ret = do_bsd_undelete(arg1);
 690         break;
 691
 692         /*
 693          * stat system calls
 694          */
 695     case TARGET_FREEBSD_NR_freebsd11_stat: /* stat(2) */
 696         ret = do_freebsd11_stat(arg1, arg2);
 697         break;
 698
 699     case TARGET_FREEBSD_NR_freebsd11_lstat: /* lstat(2) */
 700         ret = do_freebsd11_lstat(arg1, arg2);
 701         break;
 702
 703     case TARGET_FREEBSD_NR_freebsd11_fstat: /* fstat(2) */
 704         ret = do_freebsd11_fstat(arg1, arg2);
 705         break;
 706
 707     case TARGET_FREEBSD_NR_fstat: /* fstat(2) */
 708         ret = do_freebsd_fstat(arg1, arg2);
 709         break;
 710
 711     case TARGET_FREEBSD_NR_freebsd11_fstatat: /* fstatat(2) */
 712         ret = do_freebsd11_fstatat(arg1, arg2, arg3, arg4);
 713         break;
 714
 715     case TARGET_FREEBSD_NR_fstatat: /* fstatat(2) */
 716         ret = do_freebsd_fstatat(arg1, arg2, arg3, arg4);
 717         break;
 718
 719     case TARGET_FREEBSD_NR_freebsd11_nstat: /* undocumented */
 720         ret = do_freebsd11_nstat(arg1, arg2);
 721         break;
 722
 723     case TARGET_FREEBSD_NR_freebsd11_nfstat: /* undocumented */
 724         ret = do_freebsd11_nfstat(arg1, arg2);
 725         break;
 726
 727     case TARGET_FREEBSD_NR_freebsd11_nlstat: /* undocumented */
 728         ret = do_freebsd11_nlstat(arg1, arg2);
 729         break;
 730
 731     case TARGET_FREEBSD_NR_getfh: /* getfh(2) */
 732         ret = do_freebsd_getfh(arg1, arg2);
 733         break;
 734
 735     case TARGET_FREEBSD_NR_lgetfh: /* lgetfh(2) */
 736         ret = do_freebsd_lgetfh(arg1, arg2);
 737         break;
 738
 739     case TARGET_FREEBSD_NR_fhopen: /* fhopen(2) */
 740         ret = do_freebsd_fhopen(arg1, arg2);
 741         break;
 742
 743     case TARGET_FREEBSD_NR_freebsd11_fhstat: /* fhstat(2) */
 744         ret = do_freebsd11_fhstat(arg1, arg2);
 745         break;
 746
 747     case TARGET_FREEBSD_NR_fhstat: /* fhstat(2) */
 748         ret = do_freebsd_fhstat(arg1, arg2);
 749         break;
 750
 751     case TARGET_FREEBSD_NR_freebsd11_fhstatfs: /* fhstatfs(2) */
 752         ret = do_freebsd11_fhstatfs(arg1, arg2);
 753         break;
 754
 755     case TARGET_FREEBSD_NR_fhstatfs: /* fhstatfs(2) */
 756         ret = do_freebsd_fhstatfs(arg1, arg2);
 757         break;
 758
 759     case TARGET_FREEBSD_NR_freebsd11_statfs: /* statfs(2) */
 760         ret = do_freebsd11_statfs(arg1, arg2);
 761         break;
 762
 763     case TARGET_FREEBSD_NR_statfs: /* statfs(2) */
 764         ret = do_freebsd_statfs(arg1, arg2);
 765         break;
 766
 767     case TARGET_FREEBSD_NR_freebsd11_fstatfs: /* fstatfs(2) */
 768         ret = do_freebsd11_fstatfs(arg1, arg2);
 769         break;
 770
 771     case TARGET_FREEBSD_NR_fstatfs: /* fstatfs(2) */
 772         ret = do_freebsd_fstatfs(arg1, arg2);
 773         break;
 774
 775     case TARGET_FREEBSD_NR_freebsd11_getfsstat: /* getfsstat(2) */
 776         ret = do_freebsd11_getfsstat(arg1, arg2, arg3);
 777         break;
 778
 779     case TARGET_FREEBSD_NR_getfsstat: /* getfsstat(2) */
 780         ret = do_freebsd_getfsstat(arg1, arg2, arg3);
 781         break;
 782
 783     case TARGET_FREEBSD_NR_freebsd11_getdents: /* getdents(2) */
 784         ret = do_freebsd11_getdents(arg1, arg2, arg3);
 785         break;
 786
 787     case TARGET_FREEBSD_NR_getdirentries: /* getdirentries(2) */
 788         ret = do_freebsd_getdirentries(arg1, arg2, arg3, arg4);
 789         break;
 790
 791     case TARGET_FREEBSD_NR_freebsd11_getdirentries: /* getdirentries(2) */
 792         ret = do_freebsd11_getdirentries(arg1, arg2, arg3, arg4);
 793         break;
 794     case TARGET_FREEBSD_NR_fcntl: /* fcntl(2) */
 795         ret = do_freebsd_fcntl(arg1, arg2, arg3);
 796         break;
 797
 798         /*
 799          * Memory management system calls.
 800          */
 801     case TARGET_FREEBSD_NR_mmap: /* mmap(2) */
 802         ret = do_bsd_mmap(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6, arg7,
 803                           arg8);
 804         break;
 805
 806     case TARGET_FREEBSD_NR_munmap: /* munmap(2) */
 807         ret = do_bsd_munmap(arg1, arg2);
 808         break;
 809
 810     case TARGET_FREEBSD_NR_mprotect: /* mprotect(2) */
 811         ret = do_bsd_mprotect(arg1, arg2, arg3);
 812         break;
 813
 814     case TARGET_FREEBSD_NR_msync: /* msync(2) */
 815         ret = do_bsd_msync(arg1, arg2, arg3);
 816         break;
 817
 818     case TARGET_FREEBSD_NR_mlock: /* mlock(2) */
 819         ret = do_bsd_mlock(arg1, arg2);
 820         break;
 821
 822     case TARGET_FREEBSD_NR_munlock: /* munlock(2) */
 823         ret = do_bsd_munlock(arg1, arg2);
 824         break;
 825
 826     case TARGET_FREEBSD_NR_mlockall: /* mlockall(2) */
 827         ret = do_bsd_mlockall(arg1);
 828         break;
 829
 830     case TARGET_FREEBSD_NR_munlockall: /* munlockall(2) */
 831         ret = do_bsd_munlockall();
 832         break;
 833
 834     case TARGET_FREEBSD_NR_madvise: /* madvise(2) */
 835         ret = do_bsd_madvise(arg1, arg2, arg3);
 836         break;
 837
 838     case TARGET_FREEBSD_NR_minherit: /* minherit(2) */
 839         ret = do_bsd_minherit(arg1, arg2, arg3);
 840         break;
 841
 842     case TARGET_FREEBSD_NR_mincore: /* mincore(2) */
 843         ret = do_bsd_mincore(arg1, arg2, arg3);
 844         break;
 845
 846     case TARGET_FREEBSD_NR_freebsd12_shm_open: /* shm_open(2) */
 847         ret = do_bsd_shm_open(arg1, arg2, arg3);
 848         break;
 849
 850 #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048
 851     case TARGET_FREEBSD_NR_shm_open2: /* shm_open2(2) */
 852         ret = do_freebsd_shm_open2(arg1, arg2, arg3, arg4, arg5);
 853         break;
 854 #endif
 855
 856 #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300049
 857     case TARGET_FREEBSD_NR_shm_rename: /* shm_rename(2) */
 858         ret = do_freebsd_shm_rename(arg1, arg2, arg3);
 859         break;
 860 #endif
 861
 862     case TARGET_FREEBSD_NR_shm_unlink: /* shm_unlink(2) */
 863         ret = do_bsd_shm_unlink(arg1);
 864         break;
 865
 866     case TARGET_FREEBSD_NR_shmget: /* shmget(2) */
 867         ret = do_bsd_shmget(arg1, arg2, arg3);
 868         break;
 869
 870     case TARGET_FREEBSD_NR_shmctl: /* shmctl(2) */
 871         ret = do_bsd_shmctl(arg1, arg2, arg3);
 872         break;
 873
 874     case TARGET_FREEBSD_NR_shmat: /* shmat(2) */
 875         ret = do_bsd_shmat(arg1, arg2, arg3);
 876         break;
 877
 878     case TARGET_FREEBSD_NR_shmdt: /* shmdt(2) */
 879         ret = do_bsd_shmdt(arg1);
 880         break;
 881
 882     case TARGET_FREEBSD_NR_freebsd11_vadvise:
 883         ret = do_bsd_vadvise();
 884         break;
 885
 886     case TARGET_FREEBSD_NR_sbrk:
 887         ret = do_bsd_sbrk();
 888         break;
 889
 890     case TARGET_FREEBSD_NR_sstk:
 891         ret = do_bsd_sstk();
 892         break;
 893
 894         /*
 895          * Misc
 896          */
 897     case TARGET_FREEBSD_NR_break:
 898         ret = do_obreak(arg1);
 899         break;
 900
 901         /*
 902          * sys{ctl, arch, call}
 903          */
 904     case TARGET_FREEBSD_NR___sysctl: /* sysctl(3) */
 905         ret = do_freebsd_sysctl(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 906         break;
 907
 908     case TARGET_FREEBSD_NR___sysctlbyname: /* sysctlbyname(2) */
 909         ret = do_freebsd_sysctlbyname(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
 910         break;
 911
 912     case TARGET_FREEBSD_NR_sysarch: /* sysarch(2) */
 913         ret = do_freebsd_sysarch(cpu_env, arg1, arg2);
 914         break;
 915
 916     default:
 917         qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
 918         ret = -TARGET_ENOSYS;
 919         break;
 920     }
 921
 922     return ret;
 923 }
 924
 925 /*
 926  * do_freebsd_syscall() should always have a single exit point at the end so
 927  * that actions, such as logging of syscall results, can be performed. This
 928  * as a wrapper around freebsd_syscall() so that actually happens. Since
 929  * that is a singleton, modern compilers will inline it anyway...
 930  */
 931 abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
 932                             abi_long arg2, abi_long arg3, abi_long arg4,
 933                             abi_long arg5, abi_long arg6, abi_long arg7,
 934                             abi_long arg8)
 935 {
 936     abi_long ret;
 937
 938     if (do_strace) {
 939         print_freebsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
 940     }
 941
 942     ret = freebsd_syscall(cpu_env, num, arg1, arg2, arg3, arg4, arg5, arg6,
 943                           arg7, arg8);
 944     if (do_strace) {
 945         print_freebsd_syscall_ret(num, ret);
 946     }
 947
 948     return ret;
 949 }
 950
 951 void syscall_init(void)
 952 {
 953 }