This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
[PATCH 14/15] Use shmget 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 12:25:22 -0200
- Subject: [PATCH 14/15] Use shmget 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 shmget syscall if it is defined by
kernel headers.
Checked on x86_64, i686, powerpc64le, aarch64, and armhf.
* sysdeps/unix/sysv/linux/shmget.c (shmget): Use shmget syscall if it
is defined.
---
ChangeLog | 3 +++
sysdeps/unix/sysv/linux/shmget.c | 13 +++++++------
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/shmget.c b/sysdeps/unix/sysv/linux/shmget.c
index bd624fc..7024fc4 100644
--- a/sysdeps/unix/sysv/linux/shmget.c
+++ b/sysdeps/unix/sysv/linux/shmget.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/shm.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 an identifier for an shared memory segment of at least size SIZE
which is associated with KEY. */
@@ -30,5 +27,9 @@
int
shmget (key_t key, size_t size, int shmflg)
{
- return INLINE_SYSCALL (ipc, 5, IPCOP_shmget, key, size, shmflg, NULL);
+#ifdef __NR_shmget
+ return INLINE_SYSCALL_CALL (shmget, key, size, shmflg, NULL);
+#else
+ return INLINE_SYSCALL_CALL (ipc, IPCOP_shmget, key, size, shmflg, NULL);
+#endif
}
--
2.7.4