Re: faddr2line issue

[John Garry]

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