Use msgget syscall for Linux implementation

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.

11 files changed, 20 insertions, 14 deletions

diff --git a/ChangeLog b/ChangeLog
index b494042a2b..87c96361bf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,19 @@
 2016-12-28  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* 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.
+
 	* sysdeps/unix/sysv/linux/alpha/syscalls.list (msgsnd): Remove.
 	* sysdeps/unix/sysv/linux/arm/syscalls.list (msgsnd): Likewise.
 	* sysdeps/unix/sysv/linux/generic/syscalls.list (msgsnd): Likewise.
diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list
index ced9c108fc..54c1752522 100644
--- a/sysdeps/unix/sysv/linux/alpha/syscalls.list
+++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list
@@ -1,6 +1,5 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
-msgget		-	msgget		i:ii	__msgget	msgget
 shmat		-	osf_shmat	i:ipi	__shmat		shmat
 oldshmctl	EXTRA	shmctl		i:iip	__old_shmctl	shmctl@GLIBC_2.0
 shmdt		-	shmdt		i:s	__shmdt		shmdt
diff --git a/sysdeps/unix/sysv/linux/arm/syscalls.list b/sysdeps/unix/sysv/linux/arm/syscalls.list
index 43c464d298..4bf482623c 100644
--- a/sysdeps/unix/sysv/linux/arm/syscalls.list
+++ b/sysdeps/unix/sysv/linux/arm/syscalls.list
@@ -23,7 +23,6 @@ personality	EXTRA	personality	Ei:i	__personality	personality
 
 # Semaphore and shm system calls.  msgctl, shmctl, and semctl have C
 # wrappers (to set __IPC_64).
-msgget		-	msgget		i:ii	__msgget	msgget
 shmat		-	shmat		i:ipi	__shmat		shmat
 shmdt		-	shmdt		i:s	__shmdt		shmdt
 shmget		-	shmget		i:iii	__shmget	shmget
diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
index f65598aea0..ad75223884 100644
--- a/sysdeps/unix/sysv/linux/generic/syscalls.list
+++ b/sysdeps/unix/sysv/linux/generic/syscalls.list
@@ -1,7 +1,6 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 # SysV APIs
-msgget		-	msgget		i:ii	__msgget	msgget
 semget		-	semget		i:iii	__semget	semget
 semctl		-	semctl		i:iiii	__semctl	semctl
 semtimedop	-	semtimedop	i:ipip	semtimedop
diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list
index 3fbd81a8cd..da2c9abbbf 100644
--- a/sysdeps/unix/sysv/linux/hppa/syscalls.list
+++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list
@@ -1,7 +1,6 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 # semaphore and shm system calls
-msgget		-	msgget		i:ii	__msgget	msgget
 shmat		-	shmat		i:ipi	__shmat		shmat
 shmctl		-	shmctl		i:iip	__shmctl	shmctl
 shmdt		-	shmdt		i:s	__shmdt		shmdt
diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list
index 9edcbe62e6..8056781e41 100644
--- a/sysdeps/unix/sysv/linux/ia64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/ia64/syscalls.list
@@ -5,7 +5,6 @@ umount2		-	umount		2	__umount2	umount2
 getpriority	-	getpriority	i:ii	__getpriority	getpriority
 
 # semaphore and shm system calls
-msgget		-	msgget		i:ii	__msgget	msgget
 shmat		-	shmat		i:ipi	__shmat		shmat
 shmctl		-	shmctl		i:iip	__shmctl	shmctl
 shmdt		-	shmdt		i:s	__shmdt		shmdt
diff --git a/sysdeps/unix/sysv/linux/microblaze/syscalls.list b/sysdeps/unix/sysv/linux/microblaze/syscalls.list
index ed715bac91..c40bac3eb0 100644
--- a/sysdeps/unix/sysv/linux/microblaze/syscalls.list
+++ b/sysdeps/unix/sysv/linux/microblaze/syscalls.list
@@ -8,7 +8,6 @@ personality	EXTRA	personality	Ei:i	__personality	personality
 
 # Semaphore and shm system calls.  msgctl, shmctl, and semctl have C
 # wrappers (to set __IPC_64).
-msgget          -       msgget          i:ii    __msgget        msgget
 shmat           -       shmat           i:ipi   __shmat         shmat
 shmdt           -       shmdt           i:s     __shmdt         shmdt
 shmget          -       shmget          i:iii   __shmget        shmget
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list b/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
index 4c59a33fa3..7c992d775f 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
@@ -2,7 +2,6 @@
 
 # Semaphore and shm system calls.  msgctl, shmctl, and semctl have C
 # wrappers (to set __IPC_64).
-msgget		-	msgget		i:ii	__msgget	msgget
 shmat		-	shmat		i:ipi	__shmat		shmat
 shmdt		-	shmdt		i:s	__shmdt		shmdt
 shmget		-	shmget		i:iii	__shmget	shmget
diff --git a/sysdeps/unix/sysv/linux/msgget.c b/sysdeps/unix/sysv/linux/msgget.c
index ef98c75861..d487f04edd 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 __ASSUME_DIRECT_SYSVIPC_SYSCALLS
+  return INLINE_SYSCALL_CALL (msgget, key, msgflg);
+#else
+  return INLINE_SYSCALL_CALL (ipc, IPCOP_msgget, key, msgflg, 0, NULL);
+#endif
 }
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
index 259bdfc961..f23b3798b4 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
@@ -1,7 +1,6 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 # semaphore and shm system calls
-msgget		-	msgget		i:ii	__msgget	msgget
 shmat		-	shmat		i:ipi	__shmat		shmat
 shmctl		-	shmctl		i:iip	__shmctl	shmctl
 shmdt		-	shmdt		i:s	__shmdt		shmdt
diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
index 2d46bb36d0..75b25a1b33 100644
--- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
@@ -2,7 +2,6 @@
 
 arch_prctl	EXTRA	arch_prctl	i:ii	__arch_prctl	arch_prctl
 modify_ldt	EXTRA	modify_ldt	i:ipi	__modify_ldt	modify_ldt
-msgget		-	msgget		i:ii	__msgget	msgget
 pread64		-	pread64		Ci:ipii	__libc_pread	__libc_pread64 __pread64 pread64 __pread pread
 preadv64	-	preadv		Ci:ipii	preadv64	preadv
 pwrite64	-	pwrite64	Ci:ipii	__libc_pwrite	__libc_pwrite64 __pwrite64 pwrite64 __pwrite pwrite