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authorAndrii Nakryiko <andriin@fb.com>2020-08-20 16:12:35 -0700
committerAlexei Starovoitov <ast@kernel.org>2020-08-21 15:40:22 -0700
commit3ac2e20fba07e57cd229091a568ac14a5434e6bb (patch)
treea3b4e0abcd4ac176ae689d55012fd93bf9b9ea00 /tools
parent3c4a594bc81a9fd1118c34c0b959aa732f34478e (diff)
downloadlinux-3ac2e20fba07e57cd229091a568ac14a5434e6bb.tar.bz2
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
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index a83b5827532f..09657d0afb5c 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -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))