From: Artem Savkov <asavkov@redhat.com>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
bpf@vger.kernel.org, netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Artem Savkov <asavkov@redhat.com>,
Jan Stancek <jstancek@redhat.com>
Subject: [PATCH bpf-next] bpftool: fix make dependencies for vmlinux.h
Date: Mon, 13 May 2024 13:26:58 +0200 [thread overview]
Message-ID: <20240513112658.43691-1-asavkov@redhat.com> (raw)
With pre-generated vmlinux.h there is no dependency on neither vmlinux
nor bootstrap bpftool. Define dependencies separately for both modes.
This avoids needless rebuilds in some corner cases.
Suggested-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Artem Savkov <asavkov@redhat.com>
---
tools/bpf/bpftool/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index dfa4f1bebbb31..ba927379eb201 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -204,10 +204,11 @@ ifeq ($(feature-clang-bpf-co-re),1)
BUILD_BPF_SKELS := 1
-$(OUTPUT)vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL_BOOTSTRAP)
ifeq ($(VMLINUX_H),)
+$(OUTPUT)vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL_BOOTSTRAP)
$(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) btf dump file $< format c > $@
else
+$(OUTPUT)vmlinux.h: $(VMLINUX_H)
$(Q)cp "$(VMLINUX_H)" $@
endif
--
2.44.0
next reply other threads:[~2024-05-13 11:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-13 11:26 Artem Savkov [this message]
2024-05-13 11:34 ` [PATCH bpf-next] bpftool: fix make dependencies for vmlinux.h Quentin Monnet
2024-05-17 3:10 ` patchwork-bot+netdevbpf
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