linux-kernel - Re: [PATCH v2] perf: Fix build break on powerpc due to sample_reg

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Date:	Wed, 30 Sep 2015 21:09:09 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>, eranian@...gle.com,
	naveen.n.rao@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH v2] perf: Fix build break on powerpc due to
 sample_reg_masks

On Wed, Sep 30, 2015 at 11:28:36AM -0700, Sukadev Bhattiprolu wrote:
> From e29aeeee7236122c4d807ec9ebc721b5d7d75c8d Mon Sep 17 00:00:00 2001
> From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
> Date: Thu, 24 Sep 2015 17:53:49 -0400
> Subject: [PATCH v2] perf: Fix build break on powerpc due to sample_reg_masks
> 
> perf_regs.c does not get built on Powerpc as CONFIG_PERF_REGS is false.
> So the weak definition for 'sample_regs_masks' doesn't get picked up.
> 
> Adding perf_regs.o to util/Build unconditionally, exposes a redefinition
> error for 'perf_reg_value()' function (due to the static inline version
> in util/perf_regs.h). So use #ifdef HAVE_PERF_REGS_SUPPORT' around that
> function.
> 
> Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka
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