+TRACE_HEADERS = trace-root.h $(trace-events-subdirs:%=%/trace.h)
+TRACE_SOURCES = trace-root.c $(trace-events-subdirs:%=%/trace.c)
+TRACE_DTRACE =
+ifdef CONFIG_TRACE_DTRACE
+TRACE_HEADERS += trace-dtrace-root.h $(trace-events-subdirs:%=%/trace-dtrace.h)
+TRACE_DTRACE += trace-dtrace-root.dtrace $(trace-events-subdirs:%=%/trace-dtrace.dtrace)
+endif
+ifdef CONFIG_TRACE_UST
+TRACE_HEADERS += trace-ust-root.h $(trace-events-subdirs:%=%/trace-ust.h)
+endif
+
+GENERATED_HEADERS += $(TRACE_HEADERS)
+GENERATED_SOURCES += $(TRACE_SOURCES)
+
+trace-group-name = $(shell dirname $1 | sed -e 's/[^a-zA-Z0-9]/_/g')
+
+%/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
+