[RFC PATCH 1/4] ntdll: Consolidate 2 STRs into 1 STRD in ARM syscall dispatcher.
Alexandre Julliard
julliard at winehq.org
Tue Feb 8 13:17:03 CST 2022
Jin-oh Kang <jinoh.kang.kr at gmail.com> writes:
> On Wed, Feb 9, 2022, 3:29 AM Zebediah Figura <zfigura at codeweavers.com> wrote:
>
> We had to avoid strd previously due to some processors not supporting it
> [1]. Is this instruction portable enough?
>
> [1] https://bugs.winehq.org/show_bug.cgi?id=44365
>
> LDRD and STRD are ARMv7 instructions. There is at least one instance
> of LDRD in dlls/ntdll/signal_arm.c, in call_consolidate_callback. If
> we're aiming for pre-ARMv7 CPUs, we might as well have to remove it.
These days we basically require ARMv7, for multiple reasons.
--
Alexandre Julliard
julliard at winehq.org
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