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Use shmget syscall for linux implementation

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this patch add a direct call to shmget syscall if it is supported by
kernel features.

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

	* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmget): Remove.
	* sysdeps/unix/sysv/linux/arm/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/generic/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmget):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmget):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmget): Likewise.
	* sysdeps/unix/sysv/linux/shmget.c (shmget): Use shmget syscall if it
	is defined.
This commit is contained in:
Adhemerval Zanella 2016-10-26 18:24:53 -02:00
parent 214f017fdf
commit 50a6b4e0e4
11 changed files with 21 additions and 35 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 (shmget): Remove.
* sysdeps/unix/sysv/linux/arm/syscalls.list (shmget): Likewise.
* sysdeps/unix/sysv/linux/generic/syscalls.list (shmget): Likewise.
* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmget): Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmget): Likewise.
* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmget): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmget):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmget):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmget): Likewise.
* sysdeps/unix/sysv/linux/shmget.c (shmget): Use shmget syscall if it
is defined.
* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmdt): Remove.
* sysdeps/unix/sysv/linux/arm/syscalls.list (shmdt): Likewise.
* sysdeps/unix/sysv/linux/generic/syscalls.list (shmdt): Likewise.

2
sysdeps/unix/sysv/linux/alpha/syscalls.list
View File

@ -1,7 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names
shmget - shmget i:iii __shmget shmget
sigstack - sigstack 2 sigstack
getpriority - getpriority i:ii __getpriority getpriority

4
sysdeps/unix/sysv/linux/arm/syscalls.list
View File

@ -21,10 +21,6 @@ fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
personality EXTRA personality Ei:i __personality personality
# Semaphore and shm system calls. msgctl, shmctl, and semctl have C
# wrappers (to set __IPC_64).
shmget - shmget i:iii __shmget shmget
# proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept
bind - bind i:ipi __bind bind

3
sysdeps/unix/sysv/linux/generic/syscalls.list
View File

@ -1,8 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names
# SysV APIs
shmget - shmget i:iii __shmget shmget
# Socket APIs
socket - socket i:iii __socket socket
socketpair - socketpair i:iiif __socketpair socketpair

3
sysdeps/unix/sysv/linux/hppa/syscalls.list
View File

@ -1,8 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names
# semaphore and shm system calls
shmget - shmget i:iii __shmget shmget
# proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept
bind - bind i:ipi __bind bind

3
sysdeps/unix/sysv/linux/ia64/syscalls.list
View File

@ -4,9 +4,6 @@ umount2 - umount 2 __umount2 umount2
getpriority - getpriority i:ii __getpriority getpriority
# semaphore and shm system calls
shmget - shmget i:iii __shmget shmget
# proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept
bind - bind i:ipi __bind bind

4
sysdeps/unix/sysv/linux/microblaze/syscalls.list
View File

@ -5,7 +5,3 @@ cacheflush EXTRA cacheflush i:iiii __cacheflush cacheflush
prlimit64 EXTRA prlimit64 i:iipp prlimit64
fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
personality EXTRA personality Ei:i __personality personality
# Semaphore and shm system calls. msgctl, shmctl, and semctl have C
# wrappers (to set __IPC_64).
shmget - shmget i:iii __shmget shmget

5
sysdeps/unix/sysv/linux/mips/mips64/syscalls.list
View File

@ -1,5 +0,0 @@
# File name Caller Syscall name Args Strong name Weak names
# Semaphore and shm system calls. msgctl, shmctl, and semctl have C
# wrappers (to set __IPC_64).
shmget - shmget i:iii __shmget shmget

4
sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list
View File

@ -1,4 +0,0 @@
# File name Caller Syscall name # args Strong name Weak names
# semaphore and shm system calls
shmget - shmget i:iii __shmget shmget

13
sysdeps/unix/sysv/linux/shmget.c
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@ -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 __ASSUME_DIRECT_SYSVIPC_SYSCALLS
return INLINE_SYSCALL_CALL (shmget, key, size, shmflg, NULL);
#else
return INLINE_SYSCALL_CALL (ipc, IPCOP_shmget, key, size, shmflg, NULL);
#endif
}

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

@ -6,7 +6,6 @@ pread64 - pread64 Ci:ipii __libc_pread __libc_pread64 __pread64 pread64 __prea
preadv64 - preadv Ci:ipii preadv64 preadv
pwrite64 - pwrite64 Ci:ipii __libc_pwrite __libc_pwrite64 __pwrite64 pwrite64 __pwrite pwrite
pwritev64 - pwritev Ci:ipii pwritev64 pwritev
shmget - shmget i:iii __shmget shmget
syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime