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Re: Assembly output optimisations (was: PR 51094 - fprint_w() in output_addr_const() reinstated)


On Tue, Aug 7, 2012 at 4:27 PM, Dimitrios Apostolou <jimis@gmx.net> wrote:
> On Tue, 7 Aug 2012, Ian Lance Taylor wrote:
>
>> On Tue, Aug 7, 2012 at 2:24 PM, Dimitrios Apostolou <jimis@gmx.net> wrote:
>>>
>>>
>>> BTW I can't find why ELF_STRING_LIMIT is only 256, it seems GAS supports
>>> arbitrary lengths. I'd have to change my code if we ever set it too high
>>> (or
>>> even unlimited) since I allocate the buffer on the stack.
>>
>>
>> See the comment for ELF_STRING_LIMIT in config/elfos.h.  gas is not
>> the only ELF assembler.
>
>
> I've seen it and thought that for non-GAS ELF platforms you should define it
> to override elfos.h, I obviously misunderstood.

I'm not aware of any assembler-specific configuration files, other
than broad differences like completely different i386 syntax.  I think
it would be best to avoid introducing such files when possible.

> So now I'm curious, this
> limit is there dominating all platforms because of the worst assembler? :-)

Yes, but it's not like the limit matters in practice.

Ian


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