diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S index 4919c11fd2..7f608a5974 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -20,7 +20,6 @@ #include <sysdep.h> #include <shlib-compat.h> #include <pthread-errnos.h> -#include <structsem.h> #ifndef UP # define LOCK lock @@ -38,26 +37,19 @@ .type sem_post,@function .align 16 sem_post: + movl $1, %edx LOCK -#if VALUE == 0 - addl $1, (%rdi) -#else - addl $1, VALUE(%rdi) -#endif - - cmpq $0, NWAITERS(%rdi) - je 2f + xaddl %edx, (%rdi) movl $SYS_futex, %eax movl $FUTEX_WAKE, %esi - orl PRIVATE(%rdi), %esi - movl $1, %edx + incl %edx syscall testq %rax, %rax js 1f -2: xorl %eax, %eax + xorl %eax, %eax retq 1: |