Re: PT_NOTE alignment, NT_GNU_PROPERTY_TYPE_0, glibc and gold

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Thu, Aug 16, 2018 at 11:41 PM, Mark Wielaard <mark@klomp.org> wrote:
> On Fri, Aug 17, 2018 at 08:20:53AM +0200, Florian Weimer wrote:
>> > Having a mix of 4-byte words and 8-byte words ELF Notes
>> > in the same ELF file seems unnecessarily confusing and
>> > introduces extra segments and sections.
>>
>> There are no 8-byte word ELF notes on GNU systems, that's an HP-UX feature.
>> The new 8-byte-aligned notes still have a four-byte header.
>
> Yes, you are right, HP-UX follows gabi and has 64-bit word notes,
> with 8-byte alignment. I meant the different padding used with GNU
> style 32-bit word ELF notes to get different alignment styles which
> is confusing and none compliant to any standard.
>
>> But like you, I don't yet see the value of the 8-byte alignment.  We could
>> decide that the current gold behavior is valid, fix glibc, and move on.
>
> Right. gold seems to produce normal GNU abi ELF Notes, which should
> be accepted as is.
>

NT_GNU_PROPERTY_TYPE_0 should stay to follow gABI.


-- 
H.J.