Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
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* miscellaneous FreeBSD system call shims
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*
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* Copyright (c) 2013-2014 Stacey D. Son
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef OS_MISC_H
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#define OS_MISC_H
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#include <sys/cpuset.h>
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#include <sys/random.h>
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#include <sched.h>
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/*
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* shm_open2 isn't exported, but the __sys_ alias is. We can use either for the
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* static version, but to dynamically link we have to use the sys version.
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*/
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int __sys_shm_open2(const char *path, int flags, mode_t mode, int shmflags,
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const char *);
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048
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/* shm_open2(2) */
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static inline abi_long do_freebsd_shm_open2(abi_ulong pathptr, abi_ulong flags,
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abi_long mode, abi_ulong shmflags, abi_ulong nameptr)
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{
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int ret;
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void *uname, *upath;
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if (pathptr == (uintptr_t)SHM_ANON) {
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upath = SHM_ANON;
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} else {
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upath = lock_user_string(pathptr);
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if (upath == NULL) {
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return -TARGET_EFAULT;
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}
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}
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uname = NULL;
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if (nameptr != 0) {
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uname = lock_user_string(nameptr);
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if (uname == NULL) {
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unlock_user(upath, pathptr, 0);
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return -TARGET_EFAULT;
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}
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}
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ret = get_errno(__sys_shm_open2(upath,
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target_to_host_bitmask(flags, fcntl_flags_tbl), mode,
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target_to_host_bitmask(shmflags, shmflag_flags_tbl), uname));
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if (upath != SHM_ANON) {
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unlock_user(upath, pathptr, 0);
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}
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if (uname != NULL) {
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unlock_user(uname, nameptr, 0);
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}
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return ret;
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}
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#endif /* __FreeBSD_version >= 1300048 */
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300049
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/* shm_rename(2) */
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static inline abi_long do_freebsd_shm_rename(abi_ulong fromptr, abi_ulong toptr,
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abi_ulong flags)
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{
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int ret;
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void *ufrom, *uto;
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ufrom = lock_user_string(fromptr);
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if (ufrom == NULL) {
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return -TARGET_EFAULT;
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}
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uto = lock_user_string(toptr);
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if (uto == NULL) {
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unlock_user(ufrom, fromptr, 0);
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return -TARGET_EFAULT;
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}
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ret = get_errno(shm_rename(ufrom, uto, flags));
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unlock_user(ufrom, fromptr, 0);
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unlock_user(uto, toptr, 0);
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return ret;
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}
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#endif /* __FreeBSD_version >= 1300049 */
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#endif /* OS_MISC_H */
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