linux-kernel - Re: [PATCH 5/7] gcov: add gcov profiling infrastructure

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Date:	Tue, 27 May 2008 10:41:00 +0200
From:	Peter Oberparleiter <peter.oberparleiter@...ibm.com>
To:	Ralf Baechle <ralf@...ux-mips.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Oberparleiter <oberparleiter@...glemail.com>,
	linux-kernel@...r.kernel.org, ltp-coverage@...ts.sourceforge.net,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH 5/7] gcov: add gcov profiling infrastructure

Ralf Baechle wrote:
> On Fri, May 23, 2008 at 12:11:36AM -0700, Andrew Morton wrote:
>> On Mon, 19 May 2008 10:44:22 +0200 Peter Oberparleiter <peter.oberparleiter@...ibm.com> wrote:
>> 
>> > +	Note that a kernel compiled with profiling flags will be significantly
>> > +        larger and run slower. Also be sure to exclude files from profiling
>> > +        which are not linked to the kernel image to prevent linker errors.
>> 
>> heh, it was all too much for mips.
>> 
>> {standard input}: Assembler messages:
>> {standard input}:2716: Error: Branch out of range
>> {standard input}:2819: Error: Branch out of range
>> {standard input}:2884: Error: Branch out of range
>> {standard input}:3032: Error: Branch out of range
>> {standard input}:3097: Error: Branch out of range
>> {standard input}:3151: Error: Branch out of range
>> {standard input}:3216: Error: Branch out of range
>> make[1]: *** [drivers/telephony/ixj.o] Error 1
>> make: *** [drivers/telephony/ixj.o] Error 2
> 
> A known problem which I had decieded to ignore until it begins to actually
> bite.

I don't suppose there is an easy way to fix/work around this, is there?
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