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[PATCH 04/15] Use msgget syscall for Linux implementation
- From: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- To: libc-alpha at sourceware dot org
- Date: Tue, 1 Nov 2016 12:25:12 -0200
- Subject: [PATCH 04/15] Use msgget syscall for Linux implementation
- Authentication-results: sourceware.org; auth=none
- References: <1478010323-13076-1-git-send-email-adhemerval.zanella@linaro.org>
This patch add a direct call to msgget syscall if it is defined by
kernel headers.
hecked on x86_64, i686, powerpc64le, aarch64, and armhf.
* sysdeps/unix/sysv/linux/msgget.c (msgget): Use msgget syscall if
define.
---
ChangeLog | 3 +++
sysdeps/unix/sysv/linux/msgget.c | 11 ++++++-----
2 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/msgget.c b/sysdeps/unix/sysv/linux/msgget.c
index ef98c75..07da793 100644
--- a/sysdeps/unix/sysv/linux/msgget.c
+++ b/sysdeps/unix/sysv/linux/msgget.c
@@ -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 __NR_msgget
+ return INLINE_SYSCALL_CALL (msgget, key, msgflg);
+#else
+ return INLINE_SYSCALL_CALL (ipc, IPCOP_msgget, key, msgflg, 0, NULL);
+#endif
}
--
2.7.4