projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 137d963c SS |
1 | /* |
| 2 | * miscellaneous FreeBSD system call shims | |
| 3 | * | |
| 4 | * Copyright (c) 2013-14 Stacey D. Son | |
| 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, see <http://www.gnu.org/licenses/>. | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef OS_MISC_H | |
| 21 | #define OS_MISC_H | |
| 22 | ||
| 23 | #include <sys/cpuset.h> | |
| 24 | #include <sys/random.h> | |
| 25 | #include <sched.h> | |
| 26 | ||
| 0c352988 KT |
27 | /* |
| 28 | * shm_open2 isn't exported, but the __sys_ alias is. We can use either for the | |
| 29 | * static version, but to dynamically link we have to use the sys version. | |
| 30 | */ | |
| 31 | int __sys_shm_open2(const char *path, int flags, mode_t mode, int shmflags, | |
| 32 | const char *); | |
| 33 | ||
| 34 | #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048 | |
| 35 | /* shm_open2(2) */ | |
| 36 | static inline abi_long do_freebsd_shm_open2(abi_ulong pathptr, abi_ulong flags, | |
| 37 | abi_long mode, abi_ulong shmflags, abi_ulong nameptr) | |
| 38 | { | |
| 39 | int ret; | |
| 40 | void *uname, *upath; | |
| 41 | ||
| 42 | if (pathptr == (uintptr_t)SHM_ANON) { | |
| 43 | upath = SHM_ANON; | |
| 44 | } else { | |
| 45 | upath = lock_user_string(pathptr); | |
| 46 | if (upath == NULL) { | |
| 47 | return -TARGET_EFAULT; | |
| 48 | } | |
| 49 | } | |
| 50 | ||
| 51 | uname = NULL; | |
| 52 | if (nameptr != 0) { | |
| 53 | uname = lock_user_string(nameptr); | |
| 54 | if (uname == NULL) { | |
| 55 | unlock_user(upath, pathptr, 0); | |
| 56 | return -TARGET_EFAULT; | |
| 57 | } | |
| 58 | } | |
| 59 | ret = get_errno(__sys_shm_open2(upath, | |
| 60 | target_to_host_bitmask(flags, fcntl_flags_tbl), mode, | |
| 61 | target_to_host_bitmask(shmflags, shmflag_flags_tbl), uname)); | |
| 62 | ||
| 63 | if (upath != SHM_ANON) { | |
| 64 | unlock_user(upath, pathptr, 0); | |
| 65 | } | |
| 66 | if (uname != NULL) { | |
| 67 | unlock_user(uname, nameptr, 0); | |
| 68 | } | |
| 69 | return ret; | |
| 70 | } | |
| 71 | #endif /* __FreeBSD_version >= 1300048 */ | |
| 72 | ||
| 182ea728 KE |
73 | #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300049 |
| 74 | /* shm_rename(2) */ | |
| 75 | static inline abi_long do_freebsd_shm_rename(abi_ulong fromptr, abi_ulong toptr, | |
| 76 | abi_ulong flags) | |
| 77 | { | |
| 78 | int ret; | |
| 79 | void *ufrom, *uto; | |
| 80 | ||
| 81 | ufrom = lock_user_string(fromptr); | |
| 82 | if (ufrom == NULL) { | |
| 83 | return -TARGET_EFAULT; | |
| 84 | } | |
| 85 | uto = lock_user_string(toptr); | |
| 86 | if (uto == NULL) { | |
| 87 | unlock_user(ufrom, fromptr, 0); | |
| 88 | return -TARGET_EFAULT; | |
| 89 | } | |
| 90 | ret = get_errno(shm_rename(ufrom, uto, flags)); | |
| 91 | unlock_user(ufrom, fromptr, 0); | |
| 92 | unlock_user(uto, toptr, 0); | |
| 93 | ||
| 94 | return ret; | |
| 95 | } | |
| 96 | #endif /* __FreeBSD_version >= 1300049 */ | |
| 137d963c SS |
97 | |
| 98 | #endif /* OS_MISC_H */ |