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authorIlya Leoshkevich <iii@linux.ibm.com>2021-02-24 12:14:45 +0100
committerAndrii Nakryiko <andrii@kernel.org>2021-02-26 13:18:44 -0800
commit86fd166575c38c17ecd3a6b8fb9c64fa19871486 (patch)
treedb12e05b9db36ff9a481b211ce926a4ee814f588 /tools/testing
parent2854436612c4d2606c9246ce2976ab6634276337 (diff)
downloadlinux-86fd166575c38c17ecd3a6b8fb9c64fa19871486.tar.bz2
selftests/bpf: Copy extras in out-of-srctree builds
Building selftests in a separate directory like this: make O="$BUILD" -C tools/testing/selftests/bpf and then running: cd "$BUILD" && ./test_progs -t btf causes all the non-flavored btf_dump_test_case_*.c tests to fail, because these files are not copied to where test_progs expects to find them. Fix by not skipping EXT-COPY when the original $(OUTPUT) is not empty (lib.mk sets it to $(shell pwd) in that case) and using rsync instead of cp: cp fails because e.g. urandom_read is being copied into itself, and rsync simply skips such cases. rsync is already used by kselftests and therefore is not a new dependency. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210224111445.102342-1-iii@linux.ibm.com
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/bpf/Makefile7
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 044bfdcf5b74..a81af15e4ded 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -382,11 +382,12 @@ $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
-# only copy extra resources if in flavored build
+# non-flavored in-srctree builds receive special treatment, in particular, we
+# do not need to copy extra resources (see e.g. test_btf_dump_case())
$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
-ifneq ($2,)
+ifneq ($2:$(OUTPUT),:$(shell pwd))
$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
- $(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
+ $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/
endif
$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \