Commit 303dcc25 authored by Andrii Nakryiko's avatar Andrii Nakryiko
Browse files

tools/runqslower: Allow substituting custom vmlinux.h for the build 



Just like was done for bpftool and selftests in ec23eb70 ("tools/bpftool:
Allow substituting custom vmlinux.h for the build") and ca4db638
("selftests/bpf: Allow substituting custom vmlinux.h for selftests build"),
allow to provide pre-generated vmlinux.h for runqslower build.

Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Acked-by: default avatarMartin KaFai Lau <kafai@fb.com>
Acked-by: default avatarYonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210303004010.653954-1-andrii@kernel.org
parent 85e142cb

tools/bpf/runqslower/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -69,12 +69,16 @@ $(OUTPUT) $(BPFOBJ_OUTPUT) $(BPFTOOL_OUTPUT): 
	$(QUIET_MKDIR)mkdir -p $@



$(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL)

ifeq ($(VMLINUX_H),)

	$(Q)if [ ! -e "$(VMLINUX_BTF_PATH)" ] ; then \

		echo "Couldn't find kernel BTF; set VMLINUX_BTF to"	       \

			"specify its location." >&2;			       \

		exit 1;\

	fi

	$(QUIET_GEN)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@

else

	$(Q)cp "$(VMLINUX_H)" $@

endif



$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OUTPUT)

	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(BPFOBJ_OUTPUT) $@