diff options
| -rw-r--r-- | tools/perf/Makefile.perf | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index ed6b6a070f79..48aba186ceb5 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -1072,7 +1072,11 @@ VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) $(SKEL_OUT)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) ifeq ($(VMLINUX_H),) - $(QUIET_GEN)$(BPFTOOL) btf dump file $< format c > $@ + $(QUIET_GEN)$(BPFTOOL) btf dump file $< format c > $@ || \ + (echo "Failure to generate vmlinux.h needed for the recommended BPF skeleton support." && \ + echo "To disable this use the build option NO_BPF_SKEL=1." && \ + echo "Alternatively point at a pre-generated vmlinux.h with VMLINUX_H=<path>." && \ + false) else $(Q)cp "$(VMLINUX_H)" $@ endif |