[PATCH 09/17] Use semget syscall for Linux implementation
Adhemerval Zanella
adhemerval.zanella@linaro.org
Mon Dec 12 12:33:00 GMT 2016
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.
---
ChangeLog | 14 ++++++++++++++
sysdeps/unix/sysv/linux/alpha/syscalls.list | 1 -
sysdeps/unix/sysv/linux/arm/syscalls.list | 1 -
sysdeps/unix/sysv/linux/generic/syscalls.list | 1 -
sysdeps/unix/sysv/linux/hppa/syscalls.list | 1 -
sysdeps/unix/sysv/linux/ia64/syscalls.list | 1 -
sysdeps/unix/sysv/linux/microblaze/syscalls.list | 1 -
sysdeps/unix/sysv/linux/mips/mips64/syscalls.list | 1 -
sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list | 1 -
sysdeps/unix/sysv/linux/semget.c | 11 ++++++-----
sysdeps/unix/sysv/linux/x86_64/syscalls.list | 1 -
11 files changed, 20 insertions(+), 14 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list
index c12620a..2533263 100644
--- a/sysdeps/unix/sysv/linux/alpha/syscalls.list
+++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list
@@ -6,7 +6,6 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
sigstack - sigstack 2 sigstack
diff --git a/sysdeps/unix/sysv/linux/arm/syscalls.list b/sysdeps/unix/sysv/linux/arm/syscalls.list
index 4bf4826..ef5bd01 100644
--- a/sysdeps/unix/sysv/linux/arm/syscalls.list
+++ b/sysdeps/unix/sysv/linux/arm/syscalls.list
@@ -28,7 +28,6 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
# proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept
diff --git a/sysdeps/unix/sysv/linux/generic/syscalls.list b/sysdeps/unix/sysv/linux/generic/syscalls.list
index f95f1f7..485f6fe 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
-semget - semget i:iii __semget semget
semtimedop - semtimedop i:ipip semtimedop
semop - semop i:ipi __semop semop
shmget - shmget i:iii __shmget shmget
diff --git a/sysdeps/unix/sysv/linux/hppa/syscalls.list b/sysdeps/unix/sysv/linux/hppa/syscalls.list
index 5040ef3..685ab93 100644
--- a/sysdeps/unix/sysv/linux/hppa/syscalls.list
+++ b/sysdeps/unix/sysv/linux/hppa/syscalls.list
@@ -7,7 +7,6 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
# proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept
diff --git a/sysdeps/unix/sysv/linux/ia64/syscalls.list b/sysdeps/unix/sysv/linux/ia64/syscalls.list
index ca5cba4..56200ba 100644
--- a/sysdeps/unix/sysv/linux/ia64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/ia64/syscalls.list
@@ -11,7 +11,6 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
# proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept
diff --git a/sysdeps/unix/sysv/linux/microblaze/syscalls.list b/sysdeps/unix/sysv/linux/microblaze/syscalls.list
index c40bac3..a0b8ebf 100644
--- a/sysdeps/unix/sysv/linux/microblaze/syscalls.list
+++ b/sysdeps/unix/sysv/linux/microblaze/syscalls.list
@@ -13,4 +13,3 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list b/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
index 7c992d7..374fcc2 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
@@ -7,4 +7,3 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
index 09ab580..288e080 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
@@ -6,4 +6,3 @@ shmctl - shmctl i:iip __shmctl shmctl
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
-semget - semget i:iii __semget semget
diff --git a/sysdeps/unix/sysv/linux/semget.c b/sysdeps/unix/sysv/linux/semget.c
index 52189fd..a8876f5 100644
--- a/sysdeps/unix/sysv/linux/semget.c
+++ b/sysdeps/unix/sysv/linux/semget.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/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
}
diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
index f3a1541..d77a7ca 100644
--- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list
@@ -12,7 +12,6 @@ shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
-semget - semget i:iii __semget semget
syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime
--
2.7.4
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