Re: linux-next: build failure after merge of the final tree (powerpc tree related)

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On Fri, Dec 03, 2010 at 04:59:58PM +1100, Benjamin Herrenschmidt wrote:
>On Fri, 2010-12-03 at 16:32 +1100, Stephen Rothwell wrote:
>> 
>> After merging the  tree, today's linux-next build (powerpc allmodconfig)
>> failed like this:
>> 
>> arch/powerpc/lib/hweight_64.S: Assembler messages:
>> arch/powerpc/lib/hweight_64.S:52: Error: Unrecognized opcode: `popcntw'
>> arch/powerpc/lib/hweight_64.S:77: Error: Unrecognized opcode: `popcntw'
>> arch/powerpc/lib/hweight_64.S:106: Error: Unrecognized opcode: `popcntd'
>> 
>> This is with:
>> 
>> powerpc64-linux-gcc (GCC) 4.4.0
>> GNU assembler (GNU Binutils) 2.19.1
>> 
>> Caused by commit 64ff31287693c1f325cb9cb049569c1611438ef1 ("powerpc: Add
>> support for popcnt instructions"). 
>
>
>This toolchain is a bit ancient I suppose... Anton, do you reckon we

SLES 11 SP1 still uses gcc 4.3.  4.4.0 is not ancient by any means.  Neither is binutils 2.19.1.

>should use .long based macros for these for the time being or just
>require a newer binutils ?

.long macros sound like the proper solution.

josh
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