--- a/hotspot/make/linux/makefiles/buildtree.make	Fri Jun 07 09:33:01 2013 -0700
+++ b/hotspot/make/linux/makefiles/buildtree.make	Mon Jun 10 11:30:51 2013 +0200
@@ -47,6 +47,7 @@
 # flags.make	- with macro settings
 # vm.make	- to support making "$(MAKE) -v vm.make" in makefiles
 # adlc.make	-
+# trace.make	- generate tracing event and type definitions
 # jvmti.make	- generate JVMTI bindings from the spec (JSR-163)
 # sa.make	- generate SA jar file and natives
 #
@@ -114,7 +115,8 @@
 SIMPLE_DIRS	= \
 	$(PLATFORM_DIR)/generated/dependencies \
 	$(PLATFORM_DIR)/generated/adfiles \
-	$(PLATFORM_DIR)/generated/jvmtifiles
+	$(PLATFORM_DIR)/generated/jvmtifiles \
+	$(PLATFORM_DIR)/generated/tracefiles
 
 TARGETS      = debug fastdebug optimized product
 SUBMAKE_DIRS = $(addprefix $(PLATFORM_DIR)/,$(TARGETS))
@@ -122,7 +124,7 @@
 # For dependencies and recursive makes.
 BUILDTREE_MAKE	= $(GAMMADIR)/make/$(OS_FAMILY)/makefiles/buildtree.make
 
-BUILDTREE_TARGETS = Makefile flags.make flags_vm.make vm.make adlc.make jvmti.make sa.make
+BUILDTREE_TARGETS = Makefile flags.make flags_vm.make vm.make adlc.make jvmti.make trace.make sa.make
 
 BUILDTREE_VARS	= GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OS_FAMILY) \
 	SRCARCH=$(SRCARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH) VARIANT=$(VARIANT)
@@ -269,6 +271,8 @@
 	    echo && \
 	    echo "HOTSPOT_EXTRA_SYSDEFS\$$(HOTSPOT_EXTRA_SYSDEFS) = $(HOTSPOT_EXTRA_SYSDEFS)" && \
 	    echo "SYSDEFS += \$$(HOTSPOT_EXTRA_SYSDEFS)"; \
+	[ -n "$(INCLUDE_TRACE)" ] && \
+	    echo && echo "INCLUDE_TRACE = $(INCLUDE_TRACE)"; \
 	echo; \
 	[ -n "$(SPEC)" ] && \
 	    echo "include $(SPEC)"; \
@@ -337,6 +341,16 @@
 	echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
 	) > $@
 
+trace.make: $(BUILDTREE_MAKE)
+	@echo Creating $@ ...
+	$(QUIETLY) ( \
+	$(BUILDTREE_COMMENT); \
+	echo; \
+	echo include flags.make; \
+	echo; \
+	echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
+	) > $@
+
 sa.make: $(BUILDTREE_MAKE)
 	@echo Creating $@ ...
 	$(QUIETLY) ( \