From: "Jerome Marchand" <jmarchan@redhat.com>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Jerome Marchand <jmarchan@redhat.com>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is provided
Date: Sat, 7 May 2022 18:16:35 +0200 [thread overview]
Message-ID: <20220507161635.2219052-1-jmarchan@redhat.com> (raw)
samples/bpf build currently always fails if it can't generate
vmlinux.h from vmlinux, even when vmlinux.h is directly provided by
VMLINUX_H variable, which makes VMLINUX_H pointless.
Only fails when neither method works.
Fixes: 384b6b3bbf0d ("samples: bpf: Add vmlinux.h generation support")
Reported-by: CKI Project <cki-project@redhat.com>
Reported-by: Veronika Kabatova <vkabatov@redhat.com>
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
---
samples/bpf/Makefile | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 38638845db9d..72bb85c18804 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -368,16 +368,15 @@ VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
$(obj)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL)
ifeq ($(VMLINUX_H),)
+ifeq ($(VMLINUX_BTF),)
+ $(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)",\
+ build the kernel or set VMLINUX_BTF or VMLINUX_H variable)
+endif
$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
else
$(Q)cp "$(VMLINUX_H)" $@
endif
-ifeq ($(VMLINUX_BTF),)
- $(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)",\
- build the kernel or set VMLINUX_BTF variable)
-endif
-
clean-files += vmlinux.h
# Get Clang's default includes on this system, as opposed to those seen by
--
2.35.1
next reply other threads:[~2022-05-07 16:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-07 16:16 Jerome Marchand [this message]
2022-05-10 0:50 ` [PATCH] samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is provided patchwork-bot+netdevbpf
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