tools/bpf/runqslower: Rebuild libbpf.a on libbpf source change

Add missing dependency of $(BPFOBJ) to $(LIBBPF_SRC), so that running make in runqslower/ will rebuild libbpf.a when there is change in libbpf/. Fixes: 9c01546 ("tools/bpf: Add runqslower tool to tools/bpf") Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
laijs · Feb 5, 2020 · fc9e34f · fc9e34f
1 parent 8fc91b9
commit fc9e34f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile
@@ -75,7 +75,7 @@ $(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL)
 	fi
 	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@
 
-$(BPFOBJ): | $(OUTPUT)
+$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)
 	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)			       \
 		    OUTPUT=$(abspath $(dir $@))/ $(abspath $@)