--- libmalloc/libmalloc-317.121.1/src/dtrace.h
+++ libmalloc/libmalloc-140.50.6/src/dtrace.h
@@ -37,10 +37,8 @@
 #define	MAGMALLOC_MADVFREEREGION_ENABLED() (0)
 #define	MAGMALLOC_MALLOCERRORBREAK()
 #define	MAGMALLOC_MALLOCERRORBREAK_ENABLED() (0)
-#define	MAGMALLOC_PRESSURERELIEFBEGIN(arg0, arg1, arg2)
-#define	MAGMALLOC_PRESSURERELIEFBEGIN_ENABLED() (0)
-#define	MAGMALLOC_PRESSURERELIEFEND(arg0, arg1, arg2, arg3)
-#define	MAGMALLOC_PRESSURERELIEFEND_ENABLED() (0)
+#define	MAGMALLOC_PRESSURERELIEF(arg0, arg1, arg2)
+#define	MAGMALLOC_PRESSURERELIEF_ENABLED() (0)
 #define	MAGMALLOC_RECIRCREGION(arg0, arg1, arg2, arg3, arg4)
 #define	MAGMALLOC_RECIRCREGION_ENABLED() (0)
 #define	MAGMALLOC_REFRESHINDEX(arg0, arg1, arg2)