[fpc-pascal] ppc64le ABI problem

[tobiasgiesen at gmail.com]

Hi Jonas,

fantastic, that looks great. I think now I can just wait until Pierre
Muller's snapshot is updated :=)

Cheers,
Tobias

----

On Mon, 26 Aug 2019 21:42:37 +0200
Jonas Maebe <jonas at freepascal.org> wrote:

> 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
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Kind Regards,
Tobias Giesen

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