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Date:   Wed, 16 Dec 2020 11:30:47 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        Ralf Baechle <ralf@...ux-mips.org>
Cc:     Tiezhu Yang <yangtiezhu@...ngson.cn>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
        Juxin Gao <gaojuxin@...ngson.cn>,
        Archer Yan <ayan@...ecomp.com>,
        David Daney <david.daney@...ium.com>
Subject: Re: [QUESTION] support perf record --call-graph dwarf for mips

Em Wed, Dec 16, 2020 at 07:14:02PM +0800, Jiaxun Yang escreveu:
> 
> 
> 在 2020/12/16 下午6:05, Tiezhu Yang 写道:
> > Hi,
> > 
> > In the current upstream mainline kernel, perf record --call-graph dwarf
> > is not supported for architecture mips64. I find the following related
> > patches about this feature by David Daney <david.daney@...ium.com> and
> > Archer Yan <ayan@...ecomp.com> in Sep 2019.
 
> AFAIK ddaney left Cavium at 2018 and Wave Computing Shanghai is defuncted...
 
> Feel free to take over if you like, there is no licenses issue, just
> remember to credit
> others properly.

Ralf, can you take a look at the kernel part? The user space part seems
ok.

- Arnaldo
> 
> > [1/2] Support mips unwinding and dwarf-regs
> > https://lore.kernel.org/patchwork/patch/1126521/
> > 
> > [2/2] Support extracting off-line stack traces from user-space with perf
> > https://lore.kernel.org/patchwork/patch/1126520/
> > 
> > Is this a work in progress?
> > Could you please give me some feedback?
> > Thank you for your help.
> > 
> > Thanks,
> > Tiezhu

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