Add a write barrier to the TSO link field (#1589)

[ghc-hetmet.git] / includes / Constants.h

diff --git a/includes/Constants.h b/includes/Constants.h
index e0949cb..66254f4 100644 (file)
--- a/includes/Constants.h
+++ b/includes/Constants.h
@@ -260,6 +260,11 @@
 #define TSO_INTERRUPTIBLE 8
 #define TSO_STOPPED_ON_BREAKPOINT 16 
 
+/*
+ * TSO_LINK_DIRTY is set when a TSO's link field is modified
+ */
+#define TSO_LINK_DIRTY 32
+
 /* -----------------------------------------------------------------------------
    RET_DYN stack frames
    -------------------------------------------------------------------------- */