mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/*
|
|
* miscellaneous FreeBSD system call shims
|
|
*
|
|
* Copyright (c) 2013-14 Stacey D. Son
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef OS_MISC_H
|
|
#define OS_MISC_H
|
|
|
|
#include <sys/cpuset.h>
|
|
#include <sys/random.h>
|
|
#include <sched.h>
|
|
|
|
/*
|
|
* shm_open2 isn't exported, but the __sys_ alias is. We can use either for the
|
|
* static version, but to dynamically link we have to use the sys version.
|
|
*/
|
|
int __sys_shm_open2(const char *path, int flags, mode_t mode, int shmflags,
|
|
const char *);
|
|
|
|
#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048
|
|
/* shm_open2(2) */
|
|
static inline abi_long do_freebsd_shm_open2(abi_ulong pathptr, abi_ulong flags,
|
|
abi_long mode, abi_ulong shmflags, abi_ulong nameptr)
|
|
{
|
|
int ret;
|
|
void *uname, *upath;
|
|
|
|
if (pathptr == (uintptr_t)SHM_ANON) {
|
|
upath = SHM_ANON;
|
|
} else {
|
|
upath = lock_user_string(pathptr);
|
|
if (upath == NULL) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
|
|
uname = NULL;
|
|
if (nameptr != 0) {
|
|
uname = lock_user_string(nameptr);
|
|
if (uname == NULL) {
|
|
unlock_user(upath, pathptr, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
ret = get_errno(__sys_shm_open2(upath,
|
|
target_to_host_bitmask(flags, fcntl_flags_tbl), mode,
|
|
target_to_host_bitmask(shmflags, shmflag_flags_tbl), uname));
|
|
|
|
if (upath != SHM_ANON) {
|
|
unlock_user(upath, pathptr, 0);
|
|
}
|
|
if (uname != NULL) {
|
|
unlock_user(uname, nameptr, 0);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif /* __FreeBSD_version >= 1300048 */
|
|
|
|
#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300049
|
|
/* shm_rename(2) */
|
|
static inline abi_long do_freebsd_shm_rename(abi_ulong fromptr, abi_ulong toptr,
|
|
abi_ulong flags)
|
|
{
|
|
int ret;
|
|
void *ufrom, *uto;
|
|
|
|
ufrom = lock_user_string(fromptr);
|
|
if (ufrom == NULL) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
uto = lock_user_string(toptr);
|
|
if (uto == NULL) {
|
|
unlock_user(ufrom, fromptr, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(shm_rename(ufrom, uto, flags));
|
|
unlock_user(ufrom, fromptr, 0);
|
|
unlock_user(uto, toptr, 0);
|
|
|
|
return ret;
|
|
}
|
|
#endif /* __FreeBSD_version >= 1300049 */
|
|
|
|
#endif /* OS_MISC_H */
|