Commit 3ac2e20f authored Aug 20, 2020 by Andrii Nakryiko Committed by Alexei Starovoitov Aug 21, 2020

selftests/bpf: BPF object files should depend only on libbpf headers



There is no need to re-build BPF object files if any of the sources of libbpf
change. So record more precise dependency only on libbpf/bpf_*.h headers. This
eliminates unnecessary re-builds.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200820231250.1293069-2-andriin@fb.com

parent 3c4a594b

tools/testing/selftests/bpf/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -316,7 +316,7 @@ $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \
		$(TRUNNER_BPF_PROGS_DIR)/%.c \
		$(TRUNNER_BPF_PROGS_DIR)/*.h \
		$$(INCLUDE_DIR)/vmlinux.h \
		$$(BPFOBJ) \| $(TRUNNER_OUTPUT)
		$(wildcard $(BPFDIR)/bpf_*.h) \| $(TRUNNER_OUTPUT)
		$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \
		$(TRUNNER_BPF_CFLAGS), \
		$(TRUNNER_BPF_LDFLAGS))

Admin message