From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andriin@fb.com>
Cc: Nathan Chancellor <nathan@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
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@chromium.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
linux-kbuild@vger.kernel.org
Subject: [PATCH bpf-next] kbuild: Do not clean resolve_btfids if the output does not exist
Date: Thu, 11 Feb 2021 13:40:04 +0100 [thread overview]
Message-ID: <20210211124004.1144344-1-jolsa@kernel.org> (raw)
Nathan reported issue with cleaning empty build directory:
$ make -s O=build distclean
../../scripts/Makefile.include:4: *** \
O=/ho...build/tools/bpf/resolve_btfids does not exist. Stop.
The problem that tools scripts require existing output
directory, otherwise it fails.
Adding check around the resolve_btfids clean target to
ensure the output directory is in place.
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
Makefile | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index 159d9592b587..b6fa039c18b8 100644
--- a/Makefile
+++ b/Makefile
@@ -1088,8 +1088,14 @@ endif
PHONY += resolve_btfids_clean
+resolve_btfids_O = $(abspath $(objtree))/tools/bpf/resolve_btfids
+
+# tools/bpf/resolve_btfids directory might not exist
+# in output directory, skip its clean in that case
resolve_btfids_clean:
- $(Q)$(MAKE) -sC $(srctree)/tools/bpf/resolve_btfids O=$(abspath $(objtree))/tools/bpf/resolve_btfids clean
+ifneq ($(wildcard $(resolve_btfids_O)),)
+ $(Q)$(MAKE) -sC $(srctree)/tools/bpf/resolve_btfids O=$(resolve_btfids_O) clean
+endif
ifdef CONFIG_BPF
ifdef CONFIG_DEBUG_INFO_BTF
--
2.29.2
next reply other threads:[~2021-02-11 12:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-11 12:40 Jiri Olsa [this message]
2021-02-11 19:30 ` [PATCH bpf-next] kbuild: Do not clean resolve_btfids if the output does not exist patchwork-bot+netdevbpf
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