linux-kernel - Re: [PATCH] powerpc: Disable RELOCATABLE for COMPILE

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Message-ID: <53B21B50.2010207@roeck-us.net>
Date:	Mon, 30 Jun 2014 19:22:08 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...ts.ozlabs.org, Paul Mackerras <paulus@...ba.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc: Disable RELOCATABLE for COMPILE_TEST with PPC64

On 06/30/2014 05:55 PM, Stephen Rothwell wrote:
> Hi Guenter,
>
> On Mon, 30 Jun 2014 11:45:30 -0700 Guenter Roeck <linux@...ck-us.net> wrote:
>>
>> powerpc:allmodconfig has been failing for some time with the following
>> error.
>>
>> arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
>> arch/powerpc/kernel/exceptions-64s.S:1312: Error: attempt to move .org backwards
>> make[1]: *** [arch/powerpc/kernel/head_64.o] Error 1
>>
>> A number of attempts to fix the problem by moving around code have been
>> unsuccessful and resulted in failed builds for some configurations and
>> the discovery of toolchain bugs.
>>
>> Fix the problem by disabling RELOCATABLE for COMPILE_TEST builds instead.

s/Fix/Work around/

would probably be a better here.

>> While this is less than perfect, it avoids substantial code changes
>> which would otherwise be necessary just to make COMPILE_TEST builds
>> happy and might have undesired side effects.
>>
>> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
>
> I'll dump this in my "fixes" tree today and see how it goes.
>

Would be great. Note that allyescconfig still fails with relocation errors
after this patch has been applied.

Thanks,
Guenter

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