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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
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@ -1,5 +1,19 @@
2016-12-28 Adhemerval Zanella <adhemerval.zanella@linaro.org> 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/alpha/syscalls.list (shmdt): Remove.
* sysdeps/unix/sysv/linux/arm/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmdt): Likewise.
* sysdeps/unix/sysv/linux/generic/syscalls.list (shmdt): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmdt): Likewise.

2
sysdeps/unix/sysv/linux/alpha/syscalls.list
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@ -1,7 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names # File name Caller Syscall name # args Strong name Weak names
shmget - shmget i:iii __shmget shmget
sigstack - sigstack 2 sigstack sigstack - sigstack 2 sigstack
getpriority - getpriority i:ii __getpriority getpriority getpriority - getpriority i:ii __getpriority getpriority

4
sysdeps/unix/sysv/linux/arm/syscalls.list
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@ -21,10 +21,6 @@ fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
personality EXTRA personality Ei:i __personality personality 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: # proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept accept - accept Ci:iBN __libc_accept __accept accept
bind - bind i:ipi __bind bind bind - bind i:ipi __bind bind

3
sysdeps/unix/sysv/linux/generic/syscalls.list
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@ -1,8 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names # File name Caller Syscall name # args Strong name Weak names
# SysV APIs
shmget - shmget i:iii __shmget shmget
# Socket APIs # Socket APIs
socket - socket i:iii __socket socket socket - socket i:iii __socket socket
socketpair - socketpair i:iiif __socketpair socketpair socketpair - socketpair i:iiif __socketpair socketpair

3
sysdeps/unix/sysv/linux/hppa/syscalls.list
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@ -1,8 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names # File name Caller Syscall name # args Strong name Weak names
# semaphore and shm system calls
shmget - shmget i:iii __shmget shmget
# proper socket implementations: # proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept accept - accept Ci:iBN __libc_accept __accept accept
bind - bind i:ipi __bind bind 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 getpriority - getpriority i:ii __getpriority getpriority
# semaphore and shm system calls
shmget - shmget i:iii __shmget shmget
# proper socket implementations: # proper socket implementations:
accept - accept Ci:iBN __libc_accept __accept accept accept - accept Ci:iBN __libc_accept __accept accept
bind - bind i:ipi __bind bind 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 prlimit64 EXTRA prlimit64 i:iipp prlimit64
fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark fanotify_mark EXTRA fanotify_mark i:iiiiis fanotify_mark
personality EXTRA personality Ei:i __personality personality 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
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@ -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 License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#include <errno.h> #include <sys/msg.h>
#include <sys/shm.h>
#include <ipc_priv.h> #include <ipc_priv.h>
#include <stdlib.h> /* for definition of NULL */
#include <sysdep.h> #include <sysdep.h>
#include <sys/syscall.h> #include <errno.h>
/* Return an identifier for an shared memory segment of at least size SIZE /* Return an identifier for an shared memory segment of at least size SIZE
which is associated with KEY. */ which is associated with KEY. */
@ -30,5 +27,9 @@
int int
shmget (key_t key, size_t size, int shmflg) 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
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@ -6,7 +6,6 @@ pread64 - pread64 Ci:ipii __libc_pread __libc_pread64 __pread64 pread64 __prea
preadv64 - preadv Ci:ipii preadv64 preadv preadv64 - preadv Ci:ipii preadv64 preadv
pwrite64 - pwrite64 Ci:ipii __libc_pwrite __libc_pwrite64 __pwrite64 pwrite64 __pwrite pwrite pwrite64 - pwrite64 Ci:ipii __libc_pwrite __libc_pwrite64 __pwrite64 pwrite64 __pwrite pwrite
pwritev64 - pwritev Ci:ipii pwritev64 pwritev pwritev64 - pwritev Ci:ipii pwritev64 pwritev
shmget - shmget i:iii __shmget shmget
syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime