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From: Nick Desaulniers <ndesaulniers@google.com>
To: Jiri Olsa <jolsa@kernel.org>, Andrii Nakryiko <andrii@kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Caroline Tice <cmtice@google.com>,
	Arvind Sankar <nivedita@alum.mit.edu>,
	Jakub Jelinek <jakub@redhat.com>,
	Fangrui Song <maskray@google.com>,
	Clang-Built-Linux ML <clang-built-linux@googlegroups.com>,
	Nick Clifton <nickc@redhat.com>, bpf <bpf@vger.kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Sedat Dilek <sedat.dilek@gmail.com>
Subject: Re: [PATCH v3 0/2] Kbuild: DWARF v5 support
Date: Thu, 14 Jan 2021 11:01:35 -0800	[thread overview]
Message-ID: <CAKwvOdnSx+8snm+q=eNMT4A-VFFnwPYxM=uunRkXdzX-AG4s0A@mail.gmail.com> (raw)
In-Reply-To: <CAKwvOd=+g88AEDO9JRrV-gwggsqx5p-Ckiqon3=XLcx8L-XaKg@mail.gmail.com>

On Thu, Jan 14, 2021 at 10:53 AM Nick Desaulniers
<ndesaulniers@google.com> wrote:
>
> On Wed, Jan 13, 2021 at 10:18 PM Sedat Dilek <sedat.dilek@gmail.com> wrote:
> >
> > On Wed, Jan 13, 2021 at 11:25 PM Caroline Tice <cmtice@google.com> wrote:
> > >
> > > On Tue, Jan 12, 2021 at 3:17 PM Sedat Dilek <sedat.dilek@gmail.com> wrote:
> > >>
> > >> Unfortunately, I see with CONFIG_DEBUG_INFO_DWARF5=y and
> > >> CONFIG_DEBUG_INFO_BTF=y:
> > >>
> > >> die__process_inline_expansion: DW_TAG_INVALID (0x48) @ <0x3f0dd5a> not handled!
> > >> die__process_function: DW_TAG_INVALID (0x48) @ <0x3f0dd69> not handled!
>
> I can confirm that I see a stream of these warnings when building with
> this patch series applied, and those two configs enabled.
>
> rebuilding with `make ... V=1`, it looks like the call to:
>
> + pahole -J .tmp_vmlinux.btf
>
> is triggering these.
>
> Shall I send a v4 that adds a Kconfig dependency on !DEBUG_INFO_BTF?
> Does pahole have a bug tracker?

FWIW, my distro packages pahole v1.17; rebuilt with ToT v1.19 from
source and also observe the issue.
-- 
Thanks,
~Nick Desaulniers

  reply	other threads:[~2021-01-14 19:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-04  1:11 [PATCH v3 1/2] Kbuild: make DWARF version a choice Nick Desaulniers
2020-12-04  1:11 ` [PATCH v3 2/2] Kbuild: implement support for DWARF v5 Nick Desaulniers
2021-01-04 22:12   ` Nathan Chancellor
     [not found] ` <20201204011129.2493105-3-ndesaulniers@google.com>
2020-12-04  1:13   ` [PATCH v3 0/2] Kbuild: DWARF v5 support Nick Desaulniers
2020-12-27 18:47     ` Sedat Dilek
2020-12-28 15:15       ` Sedat Dilek
2020-12-31 19:27         ` Sedat Dilek
     [not found]   ` <CA+icZUVa5rNpXxS7pRsmj-Ys4YpwCxiPKfjc0Cqtg=1GDYR8-w@mail.gmail.com>
     [not found]     ` <CA+icZUW6h4EkOYtEtYy=kUGnyA4RxKKMuX-20p96r9RsFV4LdQ@mail.gmail.com>
     [not found]       ` <CABtf2+RdH0dh3NyARWSOzig8euHK33h+0jL1zsey9V1HjjzB9w@mail.gmail.com>
2021-01-14  6:18         ` Sedat Dilek
2021-01-14  7:09           ` Sedat Dilek
2021-01-14  9:36           ` Sedat Dilek
2021-01-14 18:53           ` Nick Desaulniers
2021-01-14 19:01             ` Nick Desaulniers [this message]
2021-01-14 19:13               ` Yonghong Song
2021-01-14 19:20                 ` Nick Desaulniers
2021-01-14 20:12                   ` Sedat Dilek
2021-01-14 20:11                 ` Sedat Dilek
2021-01-14 21:52                   ` Sedat Dilek
2021-01-14 22:05                     ` Nick Desaulniers
2021-01-14 22:21                       ` Sedat Dilek
2021-01-14 23:45                         ` Yonghong Song
2020-12-04  1:18 ` [PATCH v3 1/2] Kbuild: make DWARF version a choice Nick Desaulniers
2021-01-04 22:03 ` Nathan Chancellor

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