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-rw-r--r--linuxthreads/internals.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h
index c1f4081c7b..079bf2cd64 100644
--- a/linuxthreads/internals.h
+++ b/linuxthreads/internals.h
@@ -359,11 +359,14 @@ static inline pthread_descr thread_self (void)
/* If MEMORY_BARRIER isn't defined in pt-machine.h, assume the architecture
doesn't need a memory barrier instruction (e.g. Intel x86). Some
- architectures distinguish between normal/read and write barriers. */
+ architectures distinguish between full, read and write barriers. */
#ifndef MEMORY_BARRIER
#define MEMORY_BARRIER()
#endif
+#ifndef READ_MEMORY_BARRIER
+#define READ_MEMORY_BARRIER() MEMORY_BARRIER()
+#endif
#ifndef WRITE_MEMORY_BARRIER
#define WRITE_MEMORY_BARRIER() MEMORY_BARRIER()
#endif