+GENERATED_FILES += $(TRACE_HEADERS)
+GENERATED_FILES += $(TRACE_SOURCES)
+GENERATED_FILES += $(BUILD_DIR)/trace-events-all
+
+trace-group-name = $(shell dirname $1 | sed -e 's/[^a-zA-Z0-9]/_/g')
+
+tracetool-y = $(SRC_PATH)/scripts/tracetool.py
+tracetool-y += $(shell find $(SRC_PATH)/scripts/tracetool -name "*.py")
+
+%/trace.h: %/trace.h-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+%/trace.h-timestamp: $(SRC_PATH)/%/trace-events $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=$(call trace-group-name,$@) \
+ --format=h \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+%/trace.c: %/trace.c-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+%/trace.c-timestamp: $(SRC_PATH)/%/trace-events $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=$(call trace-group-name,$@) \
+ --format=c \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+%/trace-ust.h: %/trace-ust.h-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+%/trace-ust.h-timestamp: $(SRC_PATH)/%/trace-events $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=$(call trace-group-name,$@) \
+ --format=ust-events-h \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+%/trace-dtrace.dtrace: %/trace-dtrace.dtrace-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+%/trace-dtrace.dtrace-timestamp: $(SRC_PATH)/%/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=$(call trace-group-name,$@) \
+ --format=d \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+%/trace-dtrace.h: %/trace-dtrace.dtrace $(tracetool-y)
+ $(call quiet-command,dtrace -o $@ -h -s $<, "GEN","$@")
+
+%/trace-dtrace.o: %/trace-dtrace.dtrace $(tracetool-y)
+
+
+trace-root.h: trace-root.h-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+trace-root.h-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=root \
+ --format=h \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+trace-root.c: trace-root.c-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+trace-root.c-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=root \
+ --format=c \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+trace-ust-root.h: trace-ust-root.h-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+trace-ust-root.h-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=root \
+ --format=ust-events-h \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+trace-ust-all.h: trace-ust-all.h-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+trace-ust-all.h-timestamp: $(trace-events-files) $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=all \
+ --format=ust-events-h \
+ --backends=$(TRACE_BACKENDS) \
+ $(trace-events-files) > $@,"GEN","$(@:%-timestamp=%)")
+
+trace-ust-all.c: trace-ust-all.c-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+trace-ust-all.c-timestamp: $(trace-events-files) $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=all \
+ --format=ust-events-c \
+ --backends=$(TRACE_BACKENDS) \
+ $(trace-events-files) > $@,"GEN","$(@:%-timestamp=%)")
+
+trace-dtrace-root.dtrace: trace-dtrace-root.dtrace-timestamp
+ @cmp $< $@ >/dev/null 2>&1 || cp $< $@
+trace-dtrace-root.dtrace-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
+ $(call quiet-command,$(TRACETOOL) \
+ --group=root \
+ --format=d \
+ --backends=$(TRACE_BACKENDS) \
+ $< > $@,"GEN","$(@:%-timestamp=%)")
+
+trace-dtrace-root.h: trace-dtrace-root.dtrace
+ $(call quiet-command,dtrace -o $@ -h -s $<, "GEN","$@")
+
+trace-dtrace-root.o: trace-dtrace-root.dtrace