diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S index da98ab3d49..5e9d8fb1d6 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.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. @@ -20,13 +20,11 @@ #include <sysdep.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> -#include <kernel-features.h> #define SYS_futex 202 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 -#define FUTEX_PRIVATE_FLAG 128 #ifndef UP # define LOCK lock @@ -75,20 +73,12 @@ __pthread_rwlock_rdlock: #endif jne 10f -11: -#if __ASSUME_PRIVATE_FUTEX - movl $FUTEX_PRIVATE_FLAG|FUTEX_WAIT, %esi - xorl PSHARED(%rdi), %esi +11: addq $READERS_WAKEUP, %rdi +#if FUTEX_WAIT == 0 + xorl %esi, %esi #else -# if FUTEX_WAIT == 0 - movl PSHARED(%rdi), %esi -# else movl $FUTEX_WAIT, %esi - orl PSHARED(%rdi), %esi -# endif - xorl %fs:PRIVATE_FUTEX, %esi #endif - addq $READERS_WAKEUP, %rdi movl $SYS_futex, %eax syscall |