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authorUlrich Drepper <drepper@redhat.com>2007-03-26 20:16:39 +0000
committerUlrich Drepper <drepper@redhat.com>2007-03-26 20:16:39 +0000
commitfa6e3bc38aaf82c80759f5dbdc9ec0d60ce7ee51 (patch)
treeeb6cb888ca49ac0cb0c90745aa57ae7e2e20aa2b /nptl
parentc7693af7ef36972aa266030da26211db21fc82fb (diff)
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* sysdeps/powerpc/bits/atomic.h
	[!MUTEX_HINT_ACQ]: Define MUTEX_HINT_ACQ.
	[!MUTEX_HINT_REL]: Define MUTEX_HINT_REL.
	(__arch_compare_and_exchange_val_32_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_compare_and_exchange_val_32_rel): Add MUTEX_HINT_REL to lwarx.
	(__arch_atomic_exchange_val_32_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_atomic_exchange_rel_32_rel): Add MUTEX_HINT_REL to lwarx.
	* sysdeps/powerpc/powerpc32/bits/atomic.h [_ARCH_PWR6 || _ARCH_PWR6X]:
	Define MUTEX_HINT_ACQ as ",1" and MUTEX_HINT_REL as ",0".
	(__arch_compare_and_exchange_bool_32_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_compare_and_exchange_bool_32_rel): Add MUTEX_HINT_REL to lwarx.
	* sysdeps/powerpc/powerpc64/bits/atomic.h [_ARCH_PWR6 || _ARCH_PWR6D]:
	Define MUTEX_HINT_ACQ as ",1" and MUTEX_HINT_REL as ",0".
	(__arch_compare_and_exchange_bool_32_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_compare_and_exchange_bool_32_rel): Add MUTEX_HINT_REL to lwarx.
	(__arch_compare_and_exchange_bool_64_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_compare_and_exchange_bool_64_rel): Add MUTEX_HINT_REL to lwarx.
	(__arch_compare_and_exchange_val_64_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_compare_and_exchange_val_64_rel): Add MUTEX_HINT_REL to lwarx.
	(__arch_atomic_exchange_val_64_acq): Add MUTEX_HINT_ACQ to lwarx.
	(__arch_atomic_exchange_rel_64_rel): Add MUTEX_HINT_REL to lwarx.

2007-03-20  Jakub Jelinek  <jakub@redhat.com>
Diffstat (limited to 'nptl')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h5
1 files changed, 2 insertions, 3 deletions
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"			      \