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Re: PowerPC32 .gnu.attributes in crt files
On 2/18/2011 2:58 AM, Alan Modra wrote:
> On Thu, Feb 17, 2011 at 08:31:54PM -0500, Carlos O'Donell wrote:
>> Is anyone working on adding don't-care attributes or working on
>> suppressing attributes if they don't apply?
>
> I was going to poke at it. If I understand correctly, the three
> existing powerpc attributes are all about parameter passing and
> function return values. Tag_GNU_Power_ABI_FP says how floating point
> parameters are passed and returned, Tag_GNU_Power_ABI_Vector does the
> same for vectors, and Tag_GNU_Power_ABI_Struct_Return says how <= 8
> byte structures are returned. Am I missing anything, Joseph?
>
Alan,
No need to guess, they are documented in the gas docs:
http://sourceware.org/binutils/docs-2.21/as/GNU-Object-Attributes.html#GNU-Object-Attributes
I don't see the struct return attribute documented (bug?).
Cheers,
Carlos.
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Carlos O'Donell
Mentor Graphics / CodeSourcery
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