diff options
| -rw-r--r-- | tools/bpf/runqslower/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile index c96ba90c6f01..3818ec511fd2 100644 --- a/tools/bpf/runqslower/Makefile +++ b/tools/bpf/runqslower/Makefile @@ -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) $@ |