From: Sedat Dilek <sedat.dilek@gmail.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>,
Jiri Olsa <jolsa@kernel.org>, Yonghong Song <yhs@fb.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>, bpf <bpf@vger.kernel.org>,
Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
Tom Stellard <tstellar@redhat.com>
Subject: Re: Check pahole availibity and BPF support of toolchain before starting a Linux kernel build
Date: Thu, 14 Jan 2021 15:13:18 +0100 [thread overview]
Message-ID: <CA+icZUWaMktPBYy9P-gbgL-AD7EEPrrvS4jenahJ-3HkxOOC0g@mail.gmail.com> (raw)
In-Reply-To: <20210111223144.GA1250730@krava>
On Mon, Jan 11, 2021 at 11:31 PM Jiri Olsa <jolsa@redhat.com> wrote:
>
> On Mon, Jan 11, 2021 at 10:30:22PM +0100, Sedat Dilek wrote:
>
> SNIP
>
> > > >
> > > > Building a new Linux-kernel...
> > > >
> > > > - Sedat -
> > > >
> > > > [1] https://git.kernel.org/pub/scm/devel/pahole/pahole.git/
> > > > [2] https://github.com/ClangBuiltLinux/tc-build/issues/129#issuecomment-758026878
> > > > [3] https://github.com/ClangBuiltLinux/tc-build/issues/129#issuecomment-758056553
> > >
> > > There are no significant bug fixes between pahole 1.19 and master that
> > > would solve this problem, so let's try to repro this.
> > >
> >
> > You are right pahole fom latest Git does not solve the issue.
> >
> > + info BTFIDS vmlinux
> > + [ != silent_ ]
> > + printf %-7s %s\n BTFIDS vmlinux
> > BTFIDS vmlinux
> > + ./tools/bpf/resolve_btfids/resolve_btfids vmlinux
> > FAILED: load BTF from vmlinux: Invalid argument
>
> hm, is there a .BTF section in vmlinux?
>
> is this working over vmlinux:
> $ bpftool btf dump file ./vmlinux
>
I switched to LLVM v12 from <apt.llvm.org> and saw the same FAILED line.
The generated vmlinux file is cleaned on failure.
+ info BTFIDS vmlinux
+ [ != silent_ ]
+ printf %-7s %s\n BTFIDS vmlinux
BTFIDS vmlinux
+ ./tools/bpf/resolve_btfids/resolve_btfids vmlinux
FAILED: load BTF from vmlinux: Invalid argument
+ on_exit
+ [ 255 -ne 0 ]
+ cleanup
+ rm -f .btf.vmlinux.bin.o
+ rm -f .tmp_System.map
+ rm -f .tmp_initcalls.lds
+ rm -f .tmp_symversions.lds
+ rm -f .tmp_vmlinux.btf .tmp_vmlinux.kallsyms1
.tmp_vmlinux.kallsyms1.S .tmp_vmlinux.kallsyms1.o
.tmp_vmlinux.kallsyms2 .tmp_vmlinux.kallsyms2.S .tmp_vmlinux.kallsyms
2.o
+ rm -f System.map
+ rm -f vmlinux
+ rm -f vmlinux.o
Dunno, how to suppress this.
- Sedat -
> do you have a verbose build output? I'd think pahole scream first..
>
> jirka
>
next prev parent reply other threads:[~2021-01-14 14:14 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-11 12:48 Check pahole availibity and BPF support of toolchain before starting a Linux kernel build Sedat Dilek
2021-01-11 16:05 ` Yonghong Song
2021-01-11 17:56 ` Sedat Dilek
2021-01-11 21:03 ` Andrii Nakryiko
[not found] ` <CA+icZUVrF_LCVhELbNLA7=FzEZK4=jk3QLD9XT2w5bQNo=nnOA@mail.gmail.com>
2021-01-11 22:31 ` Jiri Olsa
2021-01-11 22:34 ` Tom Stellard
2021-01-12 10:46 ` Jiri Olsa
2021-01-12 13:10 ` Jiri Olsa
2021-01-12 16:14 ` Sedat Dilek
2021-01-12 16:21 ` Jiri Olsa
2021-01-12 17:18 ` Sedat Dilek
2021-01-12 20:47 ` Sedat Dilek
2021-01-12 21:36 ` Sedat Dilek
2021-01-14 14:13 ` Sedat Dilek [this message]
2021-01-14 14:24 ` Jiri Olsa
2021-01-14 14:29 ` Sedat Dilek
[not found] ` <CA+icZUXp5gkxCr+mybQ8uO3xx+rVmmRSnN7Dfx0Xmr+VQWyZAA@mail.gmail.com>
2021-01-14 15:13 ` Sedat Dilek
2021-01-12 0:57 ` Yonghong Song
2021-01-12 4:09 ` Sedat Dilek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CA+icZUWaMktPBYy9P-gbgL-AD7EEPrrvS4jenahJ-3HkxOOC0g@mail.gmail.com \
--to=sedat.dilek@gmail.com \
--cc=andrii.nakryiko@gmail.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=john.fastabend@gmail.com \
--cc=jolsa@kernel.org \
--cc=jolsa@redhat.com \
--cc=kafai@fb.com \
--cc=kpsingh@kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=masahiroy@kernel.org \
--cc=songliubraving@fb.com \
--cc=tstellar@redhat.com \
--cc=yhs@fb.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).