From d4b510bef2ca79f713977e05978015d5288a872d Mon Sep 17 00:00:00 2001
From: bdemsky <bdemsky>
Date: Thu, 29 Jan 2009 22:28:30 +0000
Subject: [PATCH] The LOCK prefix should not have been defined away, its
 absence completely breaks the readwrite locks.  This was the reason for
 benchmarks that get stuck.

---
 Robust/src/Runtime/DSTM/interface/dsmlock.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/Robust/src/Runtime/DSTM/interface/dsmlock.h b/Robust/src/Runtime/DSTM/interface/dsmlock.h
index 596b7296..7e10dc38 100644
--- a/Robust/src/Runtime/DSTM/interface/dsmlock.h
+++ b/Robust/src/Runtime/DSTM/interface/dsmlock.h
@@ -4,10 +4,18 @@
 #define RW_LOCK_BIAS             0x01000000
 #define atomic_read(v)          ((v)->counter)
 #define RW_LOCK_UNLOCKED          { RW_LOCK_BIAS }
-#define LOCK_PREFIX ""
+//#define LOCK_PREFIX ""
+#define LOCK_PREFIX \
+                ".section .smp_locks,\"a\"\n"   \
+                "  .align 4\n"                  \
+                "  .long 661f\n" /* address */  \
+                ".previous\n"                   \
+                "661:\n\tlock; "
+
+
 
 typedef struct {
-  int counter;
+  unsigned int counter;
 } atomic_t;
 
 void initdsmlocks(volatile unsigned int *addr);
-- 
2.34.1