linux-kernel - Re: [PATCH v2 0/3] Add some perf support for mips

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Message-ID: <YD0peIlkvx/FY1wd@kernel.org>
Date:   Mon, 1 Mar 2021 14:50:48 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Tiezhu Yang <yangtiezhu@...ngson.cn>
Cc:     Jianlin Lv <Jianlin.Lv@....com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
        Juxin Gao <gaojuxin@...ngson.cn>
Subject: Re: [PATCH v2 0/3] Add some perf support for mips

Em Fri, Feb 26, 2021 at 08:49:29PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 26, 2021 at 09:11:17AM +0800, Tiezhu Yang escreveu:
> > Sorry for the late reply. I asked for a leave yesterday.

> > asm/perf_regs.h is a new added file in the patch #1,
> > the patch link is:
> > https://lore.kernel.org/patchwork/patch/1375477/
> > the commit is:
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/mips/include/uapi/asm/perf_regs.h?id=1ddc96bd42da
> > 
> > So we should build patch #2 based on patch #1.

> yeah, my bad, since perf wasn't supported on MIPS, how could cross build
> environments have the needed files? Stooooopid me, sorry. :-) I'll
> retest after adding the needed files to my test containers.

Then I had to add this one on top:

Committer notes:

Do it as __perf_reg_name() to cope with:

  067012974c8ae31a ("perf tools: Fix arm64 build error with gcc-11")

- Arnaldo