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Use semop syscall for Linux implementation 

This patch add a direct call to semop syscall if it is supported by
kernel headers.

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

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (semop): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semop):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semop):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semop): Likewise.
	* sysdeps/unix/sysv/linux/semop.c (semop): Use semop syscall if it is
	defined.
This commit is contained in:
Adhemerval Zanella 2016-10-26 17:01:43 -02:00
parent d29f6bcdcc
commit 0f97184020
11 changed files with 20 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
ChangeLog
View File

@ -1,5 +1,19 @@
2016-12-28 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/alpha/syscalls.list (semop): Remove.
* sysdeps/unix/sysv/linux/arm/syscalls.list (semop): Likewise.
* sysdeps/unix/sysv/linux/generic/syscalls.list (semop): Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list (semop): Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list (semop): Likewise.
* sysdeps/unix/sysv/linux/microblaze/syscalls.list (semop): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semop):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semop):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (semop): Likewise.
* sysdeps/unix/sysv/linux/semop.c (semop): Use semop syscall if it is
defined.
* 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.

1
sysdeps/unix/sysv/linux/alpha/syscalls.list
View File

@ -4,7 +4,6 @@ shmat - osf_shmat i:ipi __shmat shmat
oldshmctl EXTRA shmctl i:iip __old_shmctl shmctl@GLIBC_2.0
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
sigstack - sigstack 2 sigstack

1
sysdeps/unix/sysv/linux/arm/syscalls.list
View File

@ -26,7 +26,6 @@ personality EXTRA personality Ei:i __personality personality
shmat - shmat i:ipi __shmat shmat
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
# proper socket implementations:

1
sysdeps/unix/sysv/linux/generic/syscalls.list
View File

@ -2,7 +2,6 @@
# SysV APIs
semtimedop - semtimedop i:ipip semtimedop
semop - semop i:ipi __semop semop
shmget - shmget i:iii __shmget shmget
shmctl - shmctl i:iip __shmctl shmctl
shmat - shmat i:ipi __shmat shmat

1
sysdeps/unix/sysv/linux/hppa/syscalls.list
View File

@ -5,7 +5,6 @@ shmat - shmat i:ipi __shmat shmat
shmctl - shmctl i:iip __shmctl shmctl
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
# proper socket implementations:

1
sysdeps/unix/sysv/linux/ia64/syscalls.list
View File

@ -9,7 +9,6 @@ shmat - shmat i:ipi __shmat shmat
shmctl - shmctl i:iip __shmctl shmctl
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
# proper socket implementations:

1
sysdeps/unix/sysv/linux/microblaze/syscalls.list
View File

@ -11,5 +11,4 @@ personality EXTRA personality Ei:i __personality personality
shmat - shmat i:ipi __shmat shmat
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop

1
sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
View File

@ -5,5 +5,4 @@
shmat - shmat i:ipi __shmat shmat
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop

1
sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
View File

@ -5,4 +5,3 @@ shmat - shmat i:ipi __shmat shmat
shmctl - shmctl i:iip __shmctl shmctl
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop

10
sysdeps/unix/sysv/linux/semop.c
View File

@ -16,17 +16,19 @@
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 <sysdep.h>
#include <sys/syscall.h>
#include <errno.h>
/* Perform user-defined atomical operation of array of semaphores. */
int
semop (int semid, struct sembuf *sops, size_t nsops)
{
return INLINE_SYSCALL (ipc, 5, IPCOP_semop, semid, (int) nsops, 0, sops);
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
return INLINE_SYSCALL_CALL (semop, semid, sops, nsops);
#else
return INLINE_SYSCALL_CALL (ipc, IPCOP_semop, semid, nsops, 0, sops);
#endif
}

1
sysdeps/unix/sysv/linux/x86_64/syscalls.list
View File

@ -10,7 +10,6 @@ shmat - shmat i:ipi __shmat shmat
shmctl - shmctl i:iip __shmctl shmctl
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget
semop - semop i:ipi __semop semop
semtimedop - semtimedop i:ipip semtimedop
syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime