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* [PATCH bpf-next] tools/runqslower: allow substituting custom vmlinux.h for the build
@ 2021-03-03  0:40 Andrii Nakryiko
  2021-03-03  0:45 ` Martin KaFai Lau
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Andrii Nakryiko @ 2021-03-03  0:40 UTC (permalink / raw)
  To: bpf, netdev, ast, daniel; +Cc: andrii, kernel-team, Martin Lau

Just like was done for bpftool and selftests in ec23eb705620 ("tools/bpftool:
Allow substituting custom vmlinux.h for the build") and ca4db6389d61
("selftests/bpf: Allow substituting custom vmlinux.h for selftests build"),
allow to provide pre-generated vmlinux.h for runqslower build.

Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
---
 tools/bpf/runqslower/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile
index c96ba90c6f01..3818ec511fd2 100644
--- a/tools/bpf/runqslower/Makefile
+++ b/tools/bpf/runqslower/Makefile
@@ -69,12 +69,16 @@ $(OUTPUT) $(BPFOBJ_OUTPUT) $(BPFTOOL_OUTPUT):
 	$(QUIET_MKDIR)mkdir -p $@
 
 $(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL)
+ifeq ($(VMLINUX_H),)
 	$(Q)if [ ! -e "$(VMLINUX_BTF_PATH)" ] ; then \
 		echo "Couldn't find kernel BTF; set VMLINUX_BTF to"	       \
 			"specify its location." >&2;			       \
 		exit 1;\
 	fi
 	$(QUIET_GEN)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@
+else
+	$(Q)cp "$(VMLINUX_H)" $@
+endif
 
 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OUTPUT)
 	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(BPFOBJ_OUTPUT) $@
-- 
2.24.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-03-03 22:55 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-03-03  0:40 [PATCH bpf-next] tools/runqslower: allow substituting custom vmlinux.h for the build Andrii Nakryiko
2021-03-03  0:45 ` Martin KaFai Lau
2021-03-03  0:45 ` Yonghong Song
2021-03-03  4:20 ` patchwork-bot+netdevbpf

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