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Use shmdt syscall for linux implementation

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

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

	* 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.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmdt):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmdt):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmdt): Likewise.
	* sysdeps/unix/sysv/linux/shmdt.c (shmdt): Use shmdt syscall if it is
	defined.
This commit is contained in:
Adhemerval Zanella 2016-10-26 18:23:11 -02:00
parent e01f79e412
commit 214f017fdf
11 changed files with 21 additions and 14 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> 2016-12-28 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* 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.
* sysdeps/unix/sysv/linux/hppa/syscalls.list (shmdt): Likewise.
* sysdeps/unix/sysv/linux/ia64/syscalls.list (shmdt): Likewise.
* sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmdt): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmdt):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmdt):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmdt): Likewise.
* sysdeps/unix/sysv/linux/shmdt.c (shmdt): Use shmdt syscall if it is
defined.
* sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove * sysdeps/unix/sysv/linux/alpha/Makefile (sysdeps_routines): Remove
oldshmctl. oldshmctl.
* sysdeps/unix/sysv/linux/alpha/syscalls.list (shmctl): Remove. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmctl): Remove.

1
sysdeps/unix/sysv/linux/alpha/syscalls.list
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@ -1,6 +1,5 @@
# File name Caller Syscall name # args Strong name Weak names # File name Caller Syscall name # args Strong name Weak names
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget
sigstack - sigstack 2 sigstack sigstack - sigstack 2 sigstack

1
sysdeps/unix/sysv/linux/arm/syscalls.list
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@ -23,7 +23,6 @@ personality EXTRA personality Ei:i __personality personality
# Semaphore and shm system calls. msgctl, shmctl, and semctl have C # Semaphore and shm system calls. msgctl, shmctl, and semctl have C
# wrappers (to set __IPC_64). # wrappers (to set __IPC_64).
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget
# proper socket implementations: # proper socket implementations:

1
sysdeps/unix/sysv/linux/generic/syscalls.list
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@ -2,7 +2,6 @@
# SysV APIs # SysV APIs
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget
shmdt - shmdt i:s __shmdt shmdt
# Socket APIs # Socket APIs
socket - socket i:iii __socket socket socket - socket i:iii __socket socket

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

@ -1,7 +1,6 @@
# 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 # semaphore and shm system calls
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget
# proper socket implementations: # proper socket implementations:

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

@ -5,7 +5,6 @@ umount2 - umount 2 __umount2 umount2
getpriority - getpriority i:ii __getpriority getpriority getpriority - getpriority i:ii __getpriority getpriority
# semaphore and shm system calls # semaphore and shm system calls
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget
# proper socket implementations: # proper socket implementations:

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

@ -8,5 +8,4 @@ personality EXTRA personality Ei:i __personality personality
# Semaphore and shm system calls. msgctl, shmctl, and semctl have C # Semaphore and shm system calls. msgctl, shmctl, and semctl have C
# wrappers (to set __IPC_64). # wrappers (to set __IPC_64).
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget

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

@ -2,5 +2,4 @@
# Semaphore and shm system calls. msgctl, shmctl, and semctl have C # Semaphore and shm system calls. msgctl, shmctl, and semctl have C
# wrappers (to set __IPC_64). # wrappers (to set __IPC_64).
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget

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

@ -1,5 +1,4 @@
# 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 # semaphore and shm system calls
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget shmget - shmget i:iii __shmget shmget

12
sysdeps/unix/sysv/linux/shmdt.c
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@ -16,12 +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 <sysdep.h> #include <sysdep.h>
#include <sys/syscall.h> #include <errno.h>
/* Detach shared memory segment starting at address specified by SHMADDR /* Detach shared memory segment starting at address specified by SHMADDR
from the caller's data segment. */ from the caller's data segment. */
@ -29,5 +27,9 @@
int int
shmdt (const void *shmaddr) shmdt (const void *shmaddr)
{ {
return INLINE_SYSCALL (ipc, 5, IPCOP_shmdt, 0, 0, 0, (void *) shmaddr); #ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
return INLINE_SYSCALL_CALL (shmdt, shmaddr);
#else
return INLINE_SYSCALL_CALL (ipc, IPCOP_shmdt, 0, 0, 0, shmaddr);
#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 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
shmdt - shmdt i:s __shmdt shmdt
shmget - shmget i:iii __shmget shmget 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