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Use msgget syscall for Linux implementation

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

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

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (msgget): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (msgget):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (msgget):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (msgget): Likewise.
	* sysdeps/unix/sysv/linux/msgget.c (msgget): Use msgget syscall if
	define.
This commit is contained in:
Adhemerval Zanella
2016-10-26 11:00:24 -02:00
parent 692fe43ae2
commit 2182a151a7
11 changed files with 20 additions and 14 deletions
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11
sysdeps/unix/sysv/linux/msgget.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/msg.h>
#include <ipc_priv.h>
#include <stdlib.h> /* for definition of NULL */
#include <sysdep.h>
#include <sys/syscall.h>
#include <errno.h>
/* Return descriptor for message queue associated with KEY. The MSGFLG
parameter describes how to proceed with clashing of key values. */
@ -30,5 +27,9 @@
int
msgget (key_t key, int msgflg)
{
return INLINE_SYSCALL (ipc, 5, IPCOP_msgget, key, msgflg, 0, NULL);
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
return INLINE_SYSCALL_CALL (msgget, key, msgflg);
#else
return INLINE_SYSCALL_CALL (ipc, IPCOP_msgget, key, msgflg, 0, NULL);
#endif
}