[fpc-pascal] ppc64le ABI problem

[Jonas Maebe]

On 26/08/2019 20:56, Jonas Maebe wrote:
> On 26/08/2019 20:54, Florian Klaempfl wrote:
>> Am 26.08.2019 um 20:52 schrieb Jonas Maebe:
>>> On 26/08/2019 14:22, Florian Klämpfl wrote:
>>>> Am 26. August 2019 14:08:39 schrieb Sven Barth via fpc-pascal <fpc-pascal at lists.freepascal.org>:
>>>>
>>>>> Florian Klämpfl <florian at freepascal.org> schrieb am Mo., 26. Aug. 2019,
>>>>> 14:01:
>>>>>
>>>>>> Try to change the 48 in fpc/compiler/powerpc64/cpupara.pas line to 32 as a
>>>>>> temporary test.
>>>>>
>>>>> Line 302 in case anyone is wondering (thankfully that's the only "48" in
>>>>> that fike (plus its preceeding comment) ^^')
>>>>
>>>> Indeed :-) If it works, it must be made dependent on the target ABI.
>>>
>>> It's indeed like that, see section 2.2.2 of
>>> https://openpowerfoundation.org/wp-content/uploads/2016/03/ABI64BitOpenPOWERv1.1_16July2015_pub4.pdf
>>
>> Yes, I checked the docs as well :) I don't know though why it is only 32
>> for elf_abi_v2 ...
> 
> It's because the other ABIs also provide space for a compiler and
> linker-specific slot:
> https://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html#STACK

I've submitted the fix.


Jonas