[PATCH v2 2/3] Y2038: nptl: Provide futex_abstimed_wait64 supporting 64 bit time
Lukasz Majewski
lukma@denx.de
Wed Sep 30 13:17:33 GMT 2020
Hi Andreas,
> On Sep 30 2020, Lukasz Majewski wrote:
>
> > Unfortunately, yes. The m68k architecture has the issue with
> > properly compiling this code (in futex-internal.c) as it has very
> > limited number of registers (8 x 32 bit IIRC).
>
> The m68k has 16 registers, which is plenty (x86 has only 8).
This is what I got from wiki (and no I'm not the expert with m68k, so
corrections are welcome):
https://en.wikipedia.org/wiki/Motorola_68000_series (8 x 32 bit data
registers)
And I cannot say why it is not able to generate the correct code...
The proposed flag (-fno-inline) seems to be the most pragmatic solution
(the code in question is in futex-interna.c and the flag only affects
this port).
>
> Andreas.
>
Best regards,
Lukasz Majewski
--
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