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Message-ID: <3bd9817d-1959-c081-e5d0-8b0e70b3f41e@huawei.com>
Date: Wed, 20 Jul 2022 09:39:42 +0100
From: John Garry <john.garry@...wei.com>
To: Josh Poimboeuf <jpoimboe@...nel.org>
CC: <keescook@...omium.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: faddr2line issue
On 20/07/2022 01:06, Josh Poimboeuf wrote:
>> So adding config DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT to v5.19-rc2 got it
>> working again for me on arm64. However commit dcea997beed6 ("faddr2line: Fix
>> overlapping text section failures, the sequel") seems to be broken for me,
>> below - this first appeared in rc3. Any idea what the issue could be?
>>
>> $./faddr.sh hisi_sas_sata_done+0x8/0x38
>> hisi_sas_sata_done+0x8/0x38:
>> fs mm ??:0
> Hm, what does faddr.sh do?
ah, it's just a wrapper to call scripts/faddr2line with vmlinux and $1
(being hisi_sas_sata_done+0x8/0x38, above) args
> Does addr2line also fail?
faddr2line fails, as below.
>
> Can you run
>
> bash -x scripts/faddr2line <vmlinux or .ko file> hisi_sas_sata_done+0x8/0x38
>
> and share the output?
on rc3 we get:
https://raw.githubusercontent.com/hisilicon/kernel-dev/private-topic-sas-5.19-faddr2line-linux-rc3/before2
With dcea997beed6 reverted on rc3:
https://raw.githubusercontent.com/hisilicon/kernel-dev/private-topic-sas-5.19-faddr2line-linux-rc3/after2
This is my branch is you want to see what I have:
https://github.com/hisilicon/kernel-dev/commits/private-topic-sas-5.19-faddr2line-linux-rc3
Thanks,
John
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