x32 psABI draft version 0.2

[Jan Beulich]

>>> On 17.02.11 at 16:49, "H.J. Lu" <hjl.tools@gmail.com> wrote:
> On Thu, Feb 17, 2011 at 7:44 AM, Jan Hubicka <hubicka@ucw.cz> wrote:
>>> > According to Mozilla folks however REL+RELA scheme used by EABI leads
>>> > to significandly smaller libxul.so size
>>> >
>>> > According to http://glandium.org/blog/?p=1177 the difference is about 4-5MB
>>> > (out of approximately 20-30MB shared lib)
>>>
>>> This is orthogonal to x32 psABI.
>>
>> Understood.  I am just pointing out that x86-64 Mozilla suffers from startup
>> problems (extra 5MB of disk read needed) compared to both x86 and ARM EABI
>> because x86-64 ABI is RELA only. If x86-64 ABI was REL+RELA like EABI is, we
>> would not have this problem here.
>>
> 
> If people want to see REL+RELA in x32, they have to contribute codes.

That's exactly the wrong way round: First the specification has to allow
for (but not require) it, and only then does it make sense to write code.

Jan