diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/ChangeLog | 5 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h | 5 |
2 files changed, 7 insertions, 3 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 38dd8d0510..eb35a94cc8 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,8 @@ +2007-03-19 Steven Munroe <sjmunroe@us.ibm.com> + + * sysdeps/unix/sysv/linux/powerpc/lowlevellock.h + (__lll_robust_trylock): Add MUTEX_HINT_ACQ to lwarx instruction. + 2007-03-16 Jakub Jelinek <jakub@redhat.com> * sysdeps/pthread/bits/libc-lock.h: Use __extern_inline and diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h index 0136b97595..239f4ddf55 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. @@ -25,7 +25,6 @@ #include <bits/pthreadtypes.h> #include <atomic.h> - #ifndef __NR_futex # define __NR_futex 221 #endif @@ -133,7 +132,7 @@ /* Set *futex to ID if it is 0, atomically. Returns the old value */ #define __lll_robust_trylock(futex, id) \ ({ int __val; \ - __asm __volatile ("1: lwarx %0,0,%2\n" \ + __asm __volatile ("1: lwarx %0,0,%2" MUTEX_HINT_ACQ "\n" \ " cmpwi 0,%0,0\n" \ " bne 2f\n" \ " stwcx. %3,0,%2\n" \ |