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/*
* 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 */
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