build: move dtrace rules to rules.mak

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rules.mak

@@ -23,13 +23,19 @@ QEMU_CFLAGS += -I$(<D) -I$(@D)
 ifeq ($(LIBTOOL),)
 %.lo: %.c
 	@echo "missing libtool. please install and rerun configure"; exit 1
+%.lo: %.dtrace
+	@echo "missing libtool. please install and rerun configure."; exit 1
+
 LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
        $(sort $(filter %.o, $1)) $(filter-out %.o, $1) \
        $(LIBS),"  LINK  $(TARGET_DIR)$@")
 else
 LIBTOOL += $(if $(V),,--quiet)
 %.lo: %.c
 	$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC $(CC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  lt CC $@")
+%.lo: %.dtrace
+	$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G -s $<, " lt GEN $(TARGET_DIR)$@")
+
 LINK = $(call quiet-command,\
        $(if $(filter %.lo %.la,$^),$(LIBTOOL) --mode=link --tag=CC \
        )$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
@@ -46,6 +52,9 @@ endif
 %.o: %.m
 	$(call quiet-command,$(OBJCC) $(QEMU_INCLUDES) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")
 
+%.o: %.dtrace
+	$(call quiet-command,dtrace -o $@ -G -s $<, "  GEN   $(TARGET_DIR)$@")
+
 %$(EXESUF): %.o
 	$(call LINK,$^)
 

trace/Makefile.objs

@@ -46,21 +46,9 @@ $(obj)/generated-tracers-dtrace.dtrace-timestamp: $(SRC_PATH)/trace-events $(BUI
 $(obj)/generated-tracers-dtrace.h: trace/generated-tracers-dtrace.dtrace
 	$(call quiet-command,dtrace -o $@ -h -s $<, "  GEN   $@")
 
-$(obj)/generated-tracers-dtrace.o: trace/generated-tracers-dtrace.dtrace
-	$(call quiet-command,dtrace -o $@ -G -s $<, "  GEN   $@")
-
 trace-obj-$(CONFIG_TRACE_DTRACE) += generated-tracers-dtrace.o
 
 
-ifeq ($(LIBTOOL),)
-$(obj)/generated-tracers-dtrace.lo: $(obj)/generated-tracers-dtrace.dtrace
-	@echo "missing libtool. please install and rerun configure."; exit 1
-else
-$(obj)/generated-tracers-dtrace.lo: $(obj)/generated-tracers-dtrace.dtrace
-	$(call quiet-command,$(LIBTOOL) --mode=compile --tag=CC dtrace -o $@ -G -s $<, "  lt GEN $@")
-endif
-
-
 ######################################################################
 # Backend code