From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Song Liu <songliubraving@fb.com>
Cc: Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: BUILD_BPF_SKEL error message
Date: Sat, 8 May 2021 10:57:45 -0300 [thread overview]
Message-ID: <YJaY2auB5advkzrg@kernel.org> (raw)
I switched to Fedora 34 Silverblue, and while installing the needed
packages to build perf, using BUILD_BPF_SKEL=1 I noticed this:
Makefile.config:637: *** Error: clang too old. Please install recent clang. Stop.
The problem is not that clang is too old, its that it is not installed
:-)
Perhaps a slight improvement to state that, something like:
Makefile.config:637: *** Error: clang too old/not installed. Please install recent clang to build with BPF_SKEL. Stop.
As for a moment I thought clang now was _required_ to build perf, which
isn't the case, it was just me using an alias to build perf:
alias m='make -k BUILD_BPF_SKEL=1 PYTHON=python3 O=/tmp/build/perf -C tools/perf install-bin && perf test python'
Regards,
- Arnaldo
next reply other threads:[~2021-05-08 13:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-08 13:57 Arnaldo Carvalho de Melo [this message]
2021-05-10 6:56 ` BUILD_BPF_SKEL error message Song Liu
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