linux-kernel - Re: [PATCH 1/4] perf tools: Pass available CPU number to clang compiler

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Message-ID: <563AB3C7.2010600@huawei.com>
Date:	Thu, 5 Nov 2015 09:41:27 +0800
From:	"Wangnan (F)" <wangnan0@...wei.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	<namhyung@...nel.org>, <lizefan@...wei.com>, <pi3orama@....com>,
	<linux-kernel@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>
Subject: Re: [PATCH 1/4] perf tools: Pass available CPU number to clang compiler



On 2015/11/5 6:09, Arnaldo Carvalho de Melo wrote:
> Em Wed, Nov 04, 2015 at 11:20:04AM +0000, Wang Nan escreveu:
>> This patch introduces a new macro "__NR_CPUS__" to perf's embedded
>> clang compiler, which represent the available CPU counters in this
> available "CPU counters"? ENOPARSE :-)

Your changing is better.

This patch is for support Alexei's BPF output and Xia Kaixu's BPF
pmu reading. In these cases we need to create an array with
same number of slots with system CPUs.

Thank you.

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