tools/runqslower: Use Makefile.include

Makefile.include defines variables such as OUTPUT and CC for out-of-tree
build and cross-build. Include it into the runqslower Makefile and use
its $(QUIET*) helpers.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201110164310.2600671-5-jean-philippe@linaro.org

tools/bpf/runqslower/Makefile

 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+include ../../scripts/Makefile.include
+
 OUTPUT := .output
 CLANG ?= clang
 LLC ?= llc
@@ -21,10 +23,8 @@ VMLINUX_BTF_PATH := $(or $(VMLINUX_BTF),$(firstword			       \
 abs_out := $(abspath $(OUTPUT))
 ifeq ($(V),1)
 Q =
-msg =
 else
 Q = @
-msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
 MAKEFLAGS += --no-print-directory
 submake_extras := feature_display=0
 endif
@@ -37,12 +37,11 @@ all: runqslower
 runqslower: $(OUTPUT)/runqslower
 
 clean:
-	$(call msg,CLEAN)
+	$(call QUIET_CLEAN, runqslower)
 	$(Q)rm -rf $(OUTPUT) runqslower
 
 $(OUTPUT)/runqslower: $(OUTPUT)/runqslower.o $(BPFOBJ)
-	$(call msg,BINARY,$@)
-	$(Q)$(CC) $(CFLAGS) $^ -lelf -lz -o $@
+	$(QUIET_LINK)$(CC) $(CFLAGS) $^ -lelf -lz -o $@
 
 $(OUTPUT)/runqslower.o: runqslower.h $(OUTPUT)/runqslower.skel.h	      \
 			$(OUTPUT)/runqslower.bpf.o
@@ -50,31 +49,26 @@ $(OUTPUT)/runqslower.o: runqslower.h $(OUTPUT)/runqslower.skel.h	      \
 $(OUTPUT)/runqslower.bpf.o: $(OUTPUT)/vmlinux.h runqslower.h
 
 $(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(BPFTOOL)
-	$(call msg,GEN-SKEL,$@)
-	$(Q)$(BPFTOOL) gen skeleton $< > $@
+	$(QUIET_GEN)$(BPFTOOL) gen skeleton $< > $@
 
 $(OUTPUT)/%.bpf.o: %.bpf.c $(BPFOBJ) | $(OUTPUT)
-	$(call msg,BPF,$@)
-	$(Q)$(CLANG) -g -O2 -target bpf $(INCLUDES)			      \
+	$(QUIET_GEN)$(CLANG) -g -O2 -target bpf $(INCLUDES)		      \
 		 -c $(filter %.c,$^) -o $@ &&				      \
 	$(LLVM_STRIP) -g $@
 
 $(OUTPUT)/%.o: %.c | $(OUTPUT)
-	$(call msg,CC,$@)
-	$(Q)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@
+	$(QUIET_CC)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@
 
 $(OUTPUT):
-	$(call msg,MKDIR,$@)
-	$(Q)mkdir -p $(OUTPUT)
+	$(QUIET_MKDIR)mkdir -p $(OUTPUT)
 
 $(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL)
-	$(call msg,GEN,$@)
 	$(Q)if [ ! -e "$(VMLINUX_BTF_PATH)" ] ; then \
 		echo "Couldn't find kernel BTF; set VMLINUX_BTF to"	       \
 			"specify its location." >&2;			       \
 		exit 1;\
 	fi
-	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@
+	$(QUIET_GEN)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@
 
 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)
 	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)			       \