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authorUlrich Drepper <drepper@redhat.com>2000-07-22 02:26:07 +0000
committerUlrich Drepper <drepper@redhat.com>2000-07-22 02:26:07 +0000
commitdfef32ef796146357481a6f7949ba900108c655e (patch)
tree56ad420b4ee2209afd53ff1a5589962f9b32f728 /linuxthreads/spinlock.h
parentf74e61f05626503cc5e469b940bdb149c98d7ab8 (diff)
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Update.
2000-07-21  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/powerpc/strchr.S: Correct bugs introduced in BP-ification.
	Patch by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>.
Diffstat (limited to 'linuxthreads/spinlock.h')
-rw-r--r--linuxthreads/spinlock.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/linuxthreads/spinlock.h b/linuxthreads/spinlock.h
index 703b72d65e..6d3d3433f9 100644
--- a/linuxthreads/spinlock.h
+++ b/linuxthreads/spinlock.h
@@ -48,6 +48,10 @@ static inline int compare_and_swap(long * ptr, long oldval, long newval,
 
 #elif defined(HAS_COMPARE_AND_SWAP)
 
+#ifdef IMPLEMENT_TAS_WITH_CAS
+#define testandset(p) !__compare_and_swap(p, 0, 1)
+#endif
+
 #ifdef HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
 
 static inline int