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authorAndrii Nakryiko <andrii@kernel.org>2021-03-18 12:40:34 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-14 09:50:30 +0200
commit87520507b1ae99121e2090856ddf26be5ce51ea1 (patch)
treedc54e17f280bb8990fcdceadd33358e49150cbef /tools/testing
parentee06efc811eadd897ee7ab3dc44dde66235f808d (diff)
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selftests/bpf: Re-generate vmlinux.h and BPF skeletons if bpftool changed
[ Upstream commit cab62c37be057379a2a17b1b2eacd9dcba1e14dc ] Trigger vmlinux.h and BPF skeletons re-generation if detected that bpftool was re-compiled. Otherwise full `make clean` is required to get updated skeletons, if bpftool is modified. Fixes: acbd06206bbb ("selftests/bpf: Add vmlinux.h selftest exercising tracing of syscalls") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210318194036.3521577-11-andrii@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/selftests/bpf/Makefile5
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 9359377aeb35..b5322d60068c 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -196,7 +196,7 @@ $(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_D
$(call msg,MKDIR,,$@)
$(Q)mkdir -p $@
-$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
+$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
ifeq ($(VMLINUX_H),)
$(call msg,GEN,,$@)
$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
@@ -333,7 +333,8 @@ $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \
$(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \
$(TRUNNER_OUTPUT)/%.o \
- | $(BPFTOOL) $(TRUNNER_OUTPUT)
+ $(BPFTOOL) \
+ | $(TRUNNER_OUTPUT)
$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
$(Q)$$(BPFTOOL) gen skeleton $$< > $$@
endif