From 8232e7d2097eb8e5ca5548ff1ae3f7257f274a87 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 26 Oct 2016 18:04:48 -0200 Subject: Use shmat syscall for Linux implementation This patch add a direct call to shmat syscall if it is supported by kernel features. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (shmat): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (shmat): Likewise. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__NR_shmat): Define to __NR_osf_shmat. * sysdeps/unix/sysv/linux/shmat.c (shmat): Use shmat syscall if it is defined. --- sysdeps/unix/sysv/linux/alpha/kernel-features.h | 3 +++ sysdeps/unix/sysv/linux/alpha/syscalls.list | 1 - 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'sysdeps/unix/sysv/linux/alpha') diff --git a/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/sysdeps/unix/sysv/linux/alpha/kernel-features.h index f09222d225..2fc3b7758a 100644 --- a/sysdeps/unix/sysv/linux/alpha/kernel-features.h +++ b/sysdeps/unix/sysv/linux/alpha/kernel-features.h @@ -29,4 +29,7 @@ #undef __ASSUME_STATFS64 #define __ASSUME_STATFS64 0 +/* Alpha defines SysV ipc shmat syscall with a different name. */ +#define __NR_shmat __NR_osf_shmat + #endif /* _KERNEL_FEATURES_H */ diff --git a/sysdeps/unix/sysv/linux/alpha/syscalls.list b/sysdeps/unix/sysv/linux/alpha/syscalls.list index 8d3a042afe..9948d2d176 100644 --- a/sysdeps/unix/sysv/linux/alpha/syscalls.list +++ b/sysdeps/unix/sysv/linux/alpha/syscalls.list @@ -1,6 +1,5 @@ # File name Caller Syscall name # args Strong name Weak names -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 -- cgit 1.4.1