166eed099SWarner Losh /* 266eed099SWarner Losh * BSD syscalls 366eed099SWarner Losh * 466eed099SWarner Losh * Copyright (c) 2003-2008 Fabrice Bellard 566eed099SWarner Losh * Copyright (c) 2013-2014 Stacey D. Son 666eed099SWarner Losh * 766eed099SWarner Losh * This program is free software; you can redistribute it and/or modify 866eed099SWarner Losh * it under the terms of the GNU General Public License as published by 966eed099SWarner Losh * the Free Software Foundation; either version 2 of the License, or 1066eed099SWarner Losh * (at your option) any later version. 1166eed099SWarner Losh * 1266eed099SWarner Losh * This program is distributed in the hope that it will be useful, 1366eed099SWarner Losh * but WITHOUT ANY WARRANTY; without even the implied warranty of 1466eed099SWarner Losh * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1566eed099SWarner Losh * GNU General Public License for more details. 1666eed099SWarner Losh * 1766eed099SWarner Losh * You should have received a copy of the GNU General Public License 1866eed099SWarner Losh * along with this program; if not, see <http://www.gnu.org/licenses/>. 1966eed099SWarner Losh */ 2066eed099SWarner Losh 2166eed099SWarner Losh /* 2266eed099SWarner Losh * We need the FreeBSD "legacy" definitions. Rust needs the FreeBSD 11 system 2366eed099SWarner Losh * calls since it doesn't use libc at all, so we have to emulate that despite 2466eed099SWarner Losh * FreeBSD 11 being EOL'd. 2566eed099SWarner Losh */ 2666eed099SWarner Losh #define _WANT_FREEBSD11_STAT 2766eed099SWarner Losh #define _WANT_FREEBSD11_STATFS 2866eed099SWarner Losh #define _WANT_FREEBSD11_DIRENT 2966eed099SWarner Losh #define _WANT_KERNEL_ERRNO 3066eed099SWarner Losh #define _WANT_SEMUN 3166eed099SWarner Losh #include "qemu/osdep.h" 3266eed099SWarner Losh #include "qemu/cutils.h" 3366eed099SWarner Losh #include "qemu/path.h" 3466eed099SWarner Losh #include <sys/syscall.h> 3566eed099SWarner Losh #include <sys/param.h> 36af2ae2e8SWarner Losh #include <sys/mount.h> 3766eed099SWarner Losh #include <sys/sysctl.h> 3866eed099SWarner Losh #include <utime.h> 3966eed099SWarner Losh 4066eed099SWarner Losh #include "qemu.h" 4166eed099SWarner Losh #include "signal-common.h" 4266eed099SWarner Losh #include "user/syscall-trace.h" 4366eed099SWarner Losh 44c5c84d16SWarner Losh #include "bsd-file.h" 459554d330SWarner Losh #include "bsd-proc.h" 46c5c84d16SWarner Losh 4780da1b00SWarner Losh /* I/O */ 4877d3522bSWarner Losh safe_syscall3(int, open, const char *, path, int, flags, mode_t, mode); 4977d3522bSWarner Losh safe_syscall4(int, openat, int, fd, const char *, path, int, flags, mode_t, 5077d3522bSWarner Losh mode); 5177d3522bSWarner Losh 5280da1b00SWarner Losh safe_syscall3(ssize_t, read, int, fd, void *, buf, size_t, nbytes); 5380da1b00SWarner Losh safe_syscall4(ssize_t, pread, int, fd, void *, buf, size_t, nbytes, off_t, 5480da1b00SWarner Losh offset); 5580da1b00SWarner Losh safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt); 5680da1b00SWarner Losh safe_syscall4(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt, 5780da1b00SWarner Losh off_t, offset); 5880da1b00SWarner Losh 59770d8abaSWarner Losh safe_syscall3(ssize_t, write, int, fd, void *, buf, size_t, nbytes); 60770d8abaSWarner Losh safe_syscall4(ssize_t, pwrite, int, fd, void *, buf, size_t, nbytes, off_t, 61770d8abaSWarner Losh offset); 62770d8abaSWarner Losh safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt); 63770d8abaSWarner Losh safe_syscall4(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt, 64770d8abaSWarner Losh off_t, offset); 65770d8abaSWarner Losh 6666eed099SWarner Losh void target_set_brk(abi_ulong new_brk) 6766eed099SWarner Losh { 6866eed099SWarner Losh } 6966eed099SWarner Losh 70deeff83bSWarner Losh /* 71deeff83bSWarner Losh * errno conversion. 72deeff83bSWarner Losh */ 73deeff83bSWarner Losh abi_long get_errno(abi_long ret) 74deeff83bSWarner Losh { 75deeff83bSWarner Losh if (ret == -1) { 76deeff83bSWarner Losh return -host_to_target_errno(errno); 77deeff83bSWarner Losh } else { 78deeff83bSWarner Losh return ret; 79deeff83bSWarner Losh } 80deeff83bSWarner Losh } 81deeff83bSWarner Losh 82deeff83bSWarner Losh int host_to_target_errno(int err) 83deeff83bSWarner Losh { 84deeff83bSWarner Losh /* 85deeff83bSWarner Losh * All the BSDs have the property that the error numbers are uniform across 86deeff83bSWarner Losh * all architectures for a given BSD, though they may vary between different 87deeff83bSWarner Losh * BSDs. 88deeff83bSWarner Losh */ 89deeff83bSWarner Losh return err; 90deeff83bSWarner Losh } 91deeff83bSWarner Losh 9266eed099SWarner Losh bool is_error(abi_long ret) 9366eed099SWarner Losh { 9466eed099SWarner Losh return (abi_ulong)ret >= (abi_ulong)(-4096); 9566eed099SWarner Losh } 9666eed099SWarner Losh 9766eed099SWarner Losh /* 981ed771b2SWarner Losh * Unlocks a iovec. Unlike unlock_iovec, it assumes the tvec array itself is 991ed771b2SWarner Losh * already locked from target_addr. It will be unlocked as well as all the iovec 1001ed771b2SWarner Losh * elements. 1011ed771b2SWarner Losh */ 1021ed771b2SWarner Losh static void helper_unlock_iovec(struct target_iovec *target_vec, 1031ed771b2SWarner Losh abi_ulong target_addr, struct iovec *vec, 1041ed771b2SWarner Losh int count, int copy) 1051ed771b2SWarner Losh { 1061ed771b2SWarner Losh for (int i = 0; i < count; i++) { 1071ed771b2SWarner Losh abi_ulong base = tswapal(target_vec[i].iov_base); 1081ed771b2SWarner Losh 1091ed771b2SWarner Losh if (vec[i].iov_base) { 1101ed771b2SWarner Losh unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1111ed771b2SWarner Losh } 1121ed771b2SWarner Losh } 1131ed771b2SWarner Losh unlock_user(target_vec, target_addr, 0); 1141ed771b2SWarner Losh } 1151ed771b2SWarner Losh 1161ed771b2SWarner Losh struct iovec *lock_iovec(int type, abi_ulong target_addr, 1171ed771b2SWarner Losh int count, int copy) 1181ed771b2SWarner Losh { 1191ed771b2SWarner Losh struct target_iovec *target_vec; 1201ed771b2SWarner Losh struct iovec *vec; 1211ed771b2SWarner Losh abi_ulong total_len, max_len; 1221ed771b2SWarner Losh int i; 1231ed771b2SWarner Losh int err = 0; 1241ed771b2SWarner Losh 1251ed771b2SWarner Losh if (count == 0) { 1261ed771b2SWarner Losh errno = 0; 1271ed771b2SWarner Losh return NULL; 1281ed771b2SWarner Losh } 1291ed771b2SWarner Losh if (count < 0 || count > IOV_MAX) { 1301ed771b2SWarner Losh errno = EINVAL; 1311ed771b2SWarner Losh return NULL; 1321ed771b2SWarner Losh } 1331ed771b2SWarner Losh 1341ed771b2SWarner Losh vec = g_try_new0(struct iovec, count); 1351ed771b2SWarner Losh if (vec == NULL) { 1361ed771b2SWarner Losh errno = ENOMEM; 1371ed771b2SWarner Losh return NULL; 1381ed771b2SWarner Losh } 1391ed771b2SWarner Losh 1401ed771b2SWarner Losh target_vec = lock_user(VERIFY_READ, target_addr, 1411ed771b2SWarner Losh count * sizeof(struct target_iovec), 1); 1421ed771b2SWarner Losh if (target_vec == NULL) { 1431ed771b2SWarner Losh err = EFAULT; 1441ed771b2SWarner Losh goto fail2; 1451ed771b2SWarner Losh } 1461ed771b2SWarner Losh 1471ed771b2SWarner Losh max_len = 0x7fffffff & MIN(TARGET_PAGE_MASK, PAGE_MASK); 1481ed771b2SWarner Losh total_len = 0; 1491ed771b2SWarner Losh 1501ed771b2SWarner Losh for (i = 0; i < count; i++) { 1511ed771b2SWarner Losh abi_ulong base = tswapal(target_vec[i].iov_base); 1521ed771b2SWarner Losh abi_long len = tswapal(target_vec[i].iov_len); 1531ed771b2SWarner Losh 1541ed771b2SWarner Losh if (len < 0) { 1551ed771b2SWarner Losh err = EINVAL; 1561ed771b2SWarner Losh goto fail; 1571ed771b2SWarner Losh } else if (len == 0) { 1581ed771b2SWarner Losh /* Zero length pointer is ignored. */ 1591ed771b2SWarner Losh vec[i].iov_base = 0; 1601ed771b2SWarner Losh } else { 1611ed771b2SWarner Losh vec[i].iov_base = lock_user(type, base, len, copy); 1621ed771b2SWarner Losh /* 1631ed771b2SWarner Losh * If the first buffer pointer is bad, this is a fault. But 1641ed771b2SWarner Losh * subsequent bad buffers will result in a partial write; this is 1651ed771b2SWarner Losh * realized by filling the vector with null pointers and zero 1661ed771b2SWarner Losh * lengths. 1671ed771b2SWarner Losh */ 1681ed771b2SWarner Losh if (!vec[i].iov_base) { 1691ed771b2SWarner Losh if (i == 0) { 1701ed771b2SWarner Losh err = EFAULT; 1711ed771b2SWarner Losh goto fail; 1721ed771b2SWarner Losh } else { 1731ed771b2SWarner Losh /* 1741ed771b2SWarner Losh * Fail all the subsequent addresses, they are already 1751ed771b2SWarner Losh * zero'd. 1761ed771b2SWarner Losh */ 1771ed771b2SWarner Losh goto out; 1781ed771b2SWarner Losh } 1791ed771b2SWarner Losh } 1801ed771b2SWarner Losh if (len > max_len - total_len) { 1811ed771b2SWarner Losh len = max_len - total_len; 1821ed771b2SWarner Losh } 1831ed771b2SWarner Losh } 1841ed771b2SWarner Losh vec[i].iov_len = len; 1851ed771b2SWarner Losh total_len += len; 1861ed771b2SWarner Losh } 1871ed771b2SWarner Losh out: 1881ed771b2SWarner Losh unlock_user(target_vec, target_addr, 0); 1891ed771b2SWarner Losh return vec; 1901ed771b2SWarner Losh 1911ed771b2SWarner Losh fail: 1921ed771b2SWarner Losh helper_unlock_iovec(target_vec, target_addr, vec, i, copy); 1931ed771b2SWarner Losh fail2: 1941ed771b2SWarner Losh g_free(vec); 1951ed771b2SWarner Losh errno = err; 1961ed771b2SWarner Losh return NULL; 1971ed771b2SWarner Losh } 1981ed771b2SWarner Losh 199883808d8SWarner Losh void unlock_iovec(struct iovec *vec, abi_ulong target_addr, 200883808d8SWarner Losh int count, int copy) 201883808d8SWarner Losh { 202883808d8SWarner Losh struct target_iovec *target_vec; 203883808d8SWarner Losh 204883808d8SWarner Losh target_vec = lock_user(VERIFY_READ, target_addr, 205883808d8SWarner Losh count * sizeof(struct target_iovec), 1); 206883808d8SWarner Losh if (target_vec) { 207883808d8SWarner Losh helper_unlock_iovec(target_vec, target_addr, vec, count, copy); 208883808d8SWarner Losh } 209883808d8SWarner Losh 210883808d8SWarner Losh g_free(vec); 211883808d8SWarner Losh } 212883808d8SWarner Losh 2131ed771b2SWarner Losh /* 214db697887SWarner Losh * All errnos that freebsd_syscall() returns must be -TARGET_<errcode>. 215db697887SWarner Losh */ 216db697887SWarner Losh static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, 217db697887SWarner Losh abi_long arg2, abi_long arg3, abi_long arg4, 218db697887SWarner Losh abi_long arg5, abi_long arg6, abi_long arg7, 219db697887SWarner Losh abi_long arg8) 220db697887SWarner Losh { 221db697887SWarner Losh abi_long ret; 222db697887SWarner Losh 223db697887SWarner Losh switch (num) { 2249554d330SWarner Losh /* 2259554d330SWarner Losh * process system calls 2269554d330SWarner Losh */ 2279554d330SWarner Losh case TARGET_FREEBSD_NR_exit: /* exit(2) */ 2289554d330SWarner Losh ret = do_bsd_exit(cpu_env, arg1); 2299554d330SWarner Losh break; 23080da1b00SWarner Losh 23180da1b00SWarner Losh /* 23280da1b00SWarner Losh * File system calls. 23380da1b00SWarner Losh */ 23480da1b00SWarner Losh case TARGET_FREEBSD_NR_read: /* read(2) */ 23580da1b00SWarner Losh ret = do_bsd_read(arg1, arg2, arg3); 23680da1b00SWarner Losh break; 23780da1b00SWarner Losh 23880da1b00SWarner Losh case TARGET_FREEBSD_NR_pread: /* pread(2) */ 23980da1b00SWarner Losh ret = do_bsd_pread(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); 24080da1b00SWarner Losh break; 24180da1b00SWarner Losh 24280da1b00SWarner Losh case TARGET_FREEBSD_NR_readv: /* readv(2) */ 24380da1b00SWarner Losh ret = do_bsd_readv(arg1, arg2, arg3); 24480da1b00SWarner Losh break; 24580da1b00SWarner Losh 24680da1b00SWarner Losh case TARGET_FREEBSD_NR_preadv: /* preadv(2) */ 24780da1b00SWarner Losh ret = do_bsd_preadv(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); 248770d8abaSWarner Losh 249770d8abaSWarner Losh case TARGET_FREEBSD_NR_write: /* write(2) */ 250770d8abaSWarner Losh ret = do_bsd_write(arg1, arg2, arg3); 251770d8abaSWarner Losh break; 252770d8abaSWarner Losh 253770d8abaSWarner Losh case TARGET_FREEBSD_NR_pwrite: /* pwrite(2) */ 254770d8abaSWarner Losh ret = do_bsd_pwrite(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); 255770d8abaSWarner Losh break; 256770d8abaSWarner Losh 257770d8abaSWarner Losh case TARGET_FREEBSD_NR_writev: /* writev(2) */ 258770d8abaSWarner Losh ret = do_bsd_writev(arg1, arg2, arg3); 259770d8abaSWarner Losh break; 260770d8abaSWarner Losh 261770d8abaSWarner Losh case TARGET_FREEBSD_NR_pwritev: /* pwritev(2) */ 262770d8abaSWarner Losh ret = do_bsd_pwritev(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); 26380da1b00SWarner Losh break; 26480da1b00SWarner Losh 26577d3522bSWarner Losh case TARGET_FREEBSD_NR_open: /* open(2) */ 26677d3522bSWarner Losh ret = do_bsd_open(arg1, arg2, arg3); 26777d3522bSWarner Losh break; 26877d3522bSWarner Losh 26977d3522bSWarner Losh case TARGET_FREEBSD_NR_openat: /* openat(2) */ 27077d3522bSWarner Losh ret = do_bsd_openat(arg1, arg2, arg3, arg4); 27177d3522bSWarner Losh break; 27277d3522bSWarner Losh 27377d3522bSWarner Losh case TARGET_FREEBSD_NR_close: /* close(2) */ 27477d3522bSWarner Losh ret = do_bsd_close(arg1); 27577d3522bSWarner Losh break; 27677d3522bSWarner Losh 277a2ba6c7bSWarner Losh case TARGET_FREEBSD_NR_fdatasync: /* fdatasync(2) */ 278a2ba6c7bSWarner Losh ret = do_bsd_fdatasync(arg1); 279a2ba6c7bSWarner Losh break; 280a2ba6c7bSWarner Losh 281a2ba6c7bSWarner Losh case TARGET_FREEBSD_NR_fsync: /* fsync(2) */ 282a2ba6c7bSWarner Losh ret = do_bsd_fsync(arg1); 283a2ba6c7bSWarner Losh break; 284a2ba6c7bSWarner Losh 285a2ba6c7bSWarner Losh case TARGET_FREEBSD_NR_freebsd12_closefrom: /* closefrom(2) */ 286a2ba6c7bSWarner Losh ret = do_bsd_closefrom(arg1); 287a2ba6c7bSWarner Losh break; 288a2ba6c7bSWarner Losh 28965c6c4c8SWarner Losh case TARGET_FREEBSD_NR_revoke: /* revoke(2) */ 29065c6c4c8SWarner Losh ret = do_bsd_revoke(arg1); 29165c6c4c8SWarner Losh break; 29265c6c4c8SWarner Losh 29365c6c4c8SWarner Losh case TARGET_FREEBSD_NR_access: /* access(2) */ 29465c6c4c8SWarner Losh ret = do_bsd_access(arg1, arg2); 29565c6c4c8SWarner Losh break; 29665c6c4c8SWarner Losh 29765c6c4c8SWarner Losh case TARGET_FREEBSD_NR_eaccess: /* eaccess(2) */ 29865c6c4c8SWarner Losh ret = do_bsd_eaccess(arg1, arg2); 29965c6c4c8SWarner Losh break; 30065c6c4c8SWarner Losh 30165c6c4c8SWarner Losh case TARGET_FREEBSD_NR_faccessat: /* faccessat(2) */ 30265c6c4c8SWarner Losh ret = do_bsd_faccessat(arg1, arg2, arg3, arg4); 30365c6c4c8SWarner Losh break; 30465c6c4c8SWarner Losh 305390f547eSWarner Losh case TARGET_FREEBSD_NR_chdir: /* chdir(2) */ 306390f547eSWarner Losh ret = do_bsd_chdir(arg1); 307390f547eSWarner Losh break; 308390f547eSWarner Losh 309390f547eSWarner Losh case TARGET_FREEBSD_NR_fchdir: /* fchdir(2) */ 310390f547eSWarner Losh ret = do_bsd_fchdir(arg1); 311390f547eSWarner Losh break; 312390f547eSWarner Losh 313ab5fd2d9SWarner Losh case TARGET_FREEBSD_NR_rename: /* rename(2) */ 314ab5fd2d9SWarner Losh ret = do_bsd_rename(arg1, arg2); 315ab5fd2d9SWarner Losh break; 316ab5fd2d9SWarner Losh 317ab5fd2d9SWarner Losh case TARGET_FREEBSD_NR_renameat: /* renameat(2) */ 318ab5fd2d9SWarner Losh ret = do_bsd_renameat(arg1, arg2, arg3, arg4); 319ab5fd2d9SWarner Losh break; 320ab5fd2d9SWarner Losh 3212d3b7e01SWarner Losh case TARGET_FREEBSD_NR_link: /* link(2) */ 3222d3b7e01SWarner Losh ret = do_bsd_link(arg1, arg2); 3232d3b7e01SWarner Losh break; 3242d3b7e01SWarner Losh 3252d3b7e01SWarner Losh case TARGET_FREEBSD_NR_linkat: /* linkat(2) */ 3262d3b7e01SWarner Losh ret = do_bsd_linkat(arg1, arg2, arg3, arg4, arg5); 3272d3b7e01SWarner Losh break; 3282d3b7e01SWarner Losh 3292d3b7e01SWarner Losh case TARGET_FREEBSD_NR_unlink: /* unlink(2) */ 3302d3b7e01SWarner Losh ret = do_bsd_unlink(arg1); 3312d3b7e01SWarner Losh break; 3322d3b7e01SWarner Losh 3332d3b7e01SWarner Losh case TARGET_FREEBSD_NR_unlinkat: /* unlinkat(2) */ 3342d3b7e01SWarner Losh ret = do_bsd_unlinkat(arg1, arg2, arg3); 3352d3b7e01SWarner Losh break; 3362d3b7e01SWarner Losh 3371ffbd5e7SWarner Losh case TARGET_FREEBSD_NR_mkdir: /* mkdir(2) */ 3381ffbd5e7SWarner Losh ret = do_bsd_mkdir(arg1, arg2); 3391ffbd5e7SWarner Losh break; 3401ffbd5e7SWarner Losh 3411ffbd5e7SWarner Losh case TARGET_FREEBSD_NR_mkdirat: /* mkdirat(2) */ 3421ffbd5e7SWarner Losh ret = do_bsd_mkdirat(arg1, arg2, arg3); 3431ffbd5e7SWarner Losh break; 3441ffbd5e7SWarner Losh 3456af8f76aSWarner Losh case TARGET_FREEBSD_NR_rmdir: /* rmdir(2) (XXX no rmdirat()?) */ 3466af8f76aSWarner Losh ret = do_bsd_rmdir(arg1); 3476af8f76aSWarner Losh break; 3486af8f76aSWarner Losh 3496af8f76aSWarner Losh case TARGET_FREEBSD_NR___getcwd: /* undocumented __getcwd() */ 3506af8f76aSWarner Losh ret = do_bsd___getcwd(arg1, arg2); 3516af8f76aSWarner Losh break; 3526af8f76aSWarner Losh 353a15699acSWarner Losh case TARGET_FREEBSD_NR_dup: /* dup(2) */ 354a15699acSWarner Losh ret = do_bsd_dup(arg1); 355a15699acSWarner Losh break; 356a15699acSWarner Losh 357a15699acSWarner Losh case TARGET_FREEBSD_NR_dup2: /* dup2(2) */ 358a15699acSWarner Losh ret = do_bsd_dup2(arg1, arg2); 359a15699acSWarner Losh break; 360a15699acSWarner Losh 3614b795b14SWarner Losh case TARGET_FREEBSD_NR_truncate: /* truncate(2) */ 3624b795b14SWarner Losh ret = do_bsd_truncate(cpu_env, arg1, arg2, arg3, arg4); 3634b795b14SWarner Losh break; 3644b795b14SWarner Losh 3654b795b14SWarner Losh case TARGET_FREEBSD_NR_ftruncate: /* ftruncate(2) */ 3664b795b14SWarner Losh ret = do_bsd_ftruncate(cpu_env, arg1, arg2, arg3, arg4); 3674b795b14SWarner Losh break; 3684b795b14SWarner Losh 369d35020edSWarner Losh case TARGET_FREEBSD_NR_acct: /* acct(2) */ 370d35020edSWarner Losh ret = do_bsd_acct(arg1); 371d35020edSWarner Losh break; 372d35020edSWarner Losh 373d35020edSWarner Losh case TARGET_FREEBSD_NR_sync: /* sync(2) */ 374d35020edSWarner Losh ret = do_bsd_sync(); 375d35020edSWarner Losh break; 376d35020edSWarner Losh 377af2ae2e8SWarner Losh case TARGET_FREEBSD_NR_mount: /* mount(2) */ 378af2ae2e8SWarner Losh ret = do_bsd_mount(arg1, arg2, arg3, arg4); 379af2ae2e8SWarner Losh break; 380af2ae2e8SWarner Losh 381af2ae2e8SWarner Losh case TARGET_FREEBSD_NR_unmount: /* unmount(2) */ 382af2ae2e8SWarner Losh ret = do_bsd_unmount(arg1, arg2); 383af2ae2e8SWarner Losh break; 384af2ae2e8SWarner Losh 385af2ae2e8SWarner Losh case TARGET_FREEBSD_NR_nmount: /* nmount(2) */ 386af2ae2e8SWarner Losh ret = do_bsd_nmount(arg1, arg2, arg3); 387af2ae2e8SWarner Losh break; 388af2ae2e8SWarner Losh 389*c7b62b4aSWarner Losh case TARGET_FREEBSD_NR_symlink: /* symlink(2) */ 390*c7b62b4aSWarner Losh ret = do_bsd_symlink(arg1, arg2); 391*c7b62b4aSWarner Losh break; 392*c7b62b4aSWarner Losh 393*c7b62b4aSWarner Losh case TARGET_FREEBSD_NR_symlinkat: /* symlinkat(2) */ 394*c7b62b4aSWarner Losh ret = do_bsd_symlinkat(arg1, arg2, arg3); 395*c7b62b4aSWarner Losh break; 396*c7b62b4aSWarner Losh 397*c7b62b4aSWarner Losh case TARGET_FREEBSD_NR_readlink: /* readlink(2) */ 398*c7b62b4aSWarner Losh ret = do_bsd_readlink(cpu_env, arg1, arg2, arg3); 399*c7b62b4aSWarner Losh break; 400*c7b62b4aSWarner Losh 401*c7b62b4aSWarner Losh case TARGET_FREEBSD_NR_readlinkat: /* readlinkat(2) */ 402*c7b62b4aSWarner Losh ret = do_bsd_readlinkat(arg1, arg2, arg3, arg4); 403*c7b62b4aSWarner Losh break; 404*c7b62b4aSWarner Losh 405db697887SWarner Losh default: 406db697887SWarner Losh qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num); 407db697887SWarner Losh ret = -TARGET_ENOSYS; 408db697887SWarner Losh break; 409db697887SWarner Losh } 410db697887SWarner Losh 411db697887SWarner Losh return ret; 412db697887SWarner Losh } 413db697887SWarner Losh 414db697887SWarner Losh /* 415db697887SWarner Losh * do_freebsd_syscall() should always have a single exit point at the end so 416db697887SWarner Losh * that actions, such as logging of syscall results, can be performed. This 417db697887SWarner Losh * as a wrapper around freebsd_syscall() so that actually happens. Since 418db697887SWarner Losh * that is a singleton, modern compilers will inline it anyway... 41966eed099SWarner Losh */ 42066eed099SWarner Losh abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1, 42166eed099SWarner Losh abi_long arg2, abi_long arg3, abi_long arg4, 42266eed099SWarner Losh abi_long arg5, abi_long arg6, abi_long arg7, 42366eed099SWarner Losh abi_long arg8) 42466eed099SWarner Losh { 425db697887SWarner Losh CPUState *cpu = env_cpu(cpu_env); 426db697887SWarner Losh int ret; 427db697887SWarner Losh 428db697887SWarner Losh trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8); 429db697887SWarner Losh if (do_strace) { 430db697887SWarner Losh print_freebsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 431db697887SWarner Losh } 432db697887SWarner Losh 433db697887SWarner Losh ret = freebsd_syscall(cpu_env, num, arg1, arg2, arg3, arg4, arg5, arg6, 434db697887SWarner Losh arg7, arg8); 435db697887SWarner Losh if (do_strace) { 436db697887SWarner Losh print_freebsd_syscall_ret(num, ret); 437db697887SWarner Losh } 438db697887SWarner Losh trace_guest_user_syscall_ret(cpu, num, ret); 439db697887SWarner Losh 440db697887SWarner Losh return ret; 44166eed099SWarner Losh } 44266eed099SWarner Losh 44366eed099SWarner Losh void syscall_init(void) 44466eed099SWarner Losh { 44566eed099SWarner Losh } 446