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From:   Hao Luo <haoluo@google.com>
Date:   Mon, 24 Aug 2020 17:05:22 -0700
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Subject: Re: [PATCH bpf-next v1 1/8] bpf: Introduce pseudo_btf_id
To:     Yonghong Song <yhs@fb.com>
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        open list <linux-kernel@vger.kernel.org>,
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Yonghong,

An update on this thread. I successfully reproduced this issue on a
8.2.0 gcc compiler, It looks like gcc 4.9 did not have this issue. I
was also using clang which did not show this bug.

It seems having a DW_AT_specification that refers to another
DW_TAG_variable isn't handled in pahole. I have a (maybe hacky) pahole
patch as fix and let me clean it up and post for review soon.

Hao