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Use semget syscall for Linux implementation

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This patch add a direct call to semget syscall if it is supported by
kernel features.

hecked on x86_64, i686, powerpc64le, aarch64, and armhf.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (semget): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semget):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semget):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semget): Likewise.
	* sysdeps/unix/sysv/linux/semget.c (semget): Use semget syscall
	if it is defined.
This commit is contained in:
Adhemerval Zanella
2016-10-26 16:59:55 -02:00
parent 40c0a78068
commit d29f6bcdcc
11 changed files with 20 additions and 14 deletions
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11
sysdeps/unix/sysv/linux/semget.c
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@ -16,13 +16,10 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/sem.h>
#include <ipc_priv.h>
#include <stdlib.h> /* for definition of NULL */
#include <sysdep.h>
#include <sys/syscall.h>
#include <errno.h>
/* Return identifier for array of NSEMS semaphores associated with
KEY. */
@ -30,5 +27,9 @@
int
semget (key_t key, int nsems, int semflg)
{
return INLINE_SYSCALL (ipc, 5, IPCOP_semget, key, nsems, semflg, NULL);
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
return INLINE_SYSCALL_CALL (semget, key, nsems, semflg);
#else
return INLINE_SYSCALL_CALL (ipc, IPCOP_semget, key, nsems, semflg, NULL);
#endif
}