linux-kernel - Re: [PATCH] perf: export perf_trace_regs and perf_arch_fetch_caller

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Date:	Thu, 11 Mar 2010 10:10:51 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>,
	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perf: export perf_trace_regs and
 perf_arch_fetch_caller_regs

On Thu, 2010-03-11 at 04:02 -0500, Christoph Hellwig wrote:
> On Thu, Mar 11, 2010 at 03:30:35PM +0800, Xiao Guangrong wrote:
> > Export perf_trace_regs and perf_arch_fetch_caller_regs since module will
> > use these
> 
> What modules exactly?  Uusually you add the export together with the
> series adding the users.

Pretty much all modular tracepoint users I think, I just got this from a
pp64_defconfig build:

ERROR: "perf_trace_regs" [fs/xfs/xfs.ko] undefined!
ERROR: ".perf_arch_fetch_caller_regs" [fs/xfs/xfs.ko] undefined!
ERROR: "perf_trace_regs" [arch/powerpc/platforms/cell/spufs/spufs.ko] undefined!
ERROR: ".perf_arch_fetch_caller_regs" [arch/powerpc/platforms/cell/spufs/spufs.ko] undefined!

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