Re: [PATCH] ARM: module: Teach unwinder about PLTs

From: Linus Walleij
Date: Fri Sep 16 2022 - 07:16:08 EST


On Wed, Jul 6, 2022 at 6:33 PM Alexander A Sverdlin
<alexander.sverdlin@xxxxxxxxx> wrote:

> From: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
>
> "unwind: Index not found eef26358" warnings keep popping up on
> CONFIG_ARM_MODULE_PLTS-enabled systems if the PC points to a PLT veneer.
> Teach the unwinder how to deal with them, taking into account they don't
> change state of the stack or register file except loading PC.
>
> Tested-by: Kursad Oney <kursad.oney@xxxxxxxxxxxx>
> Link: https://lore.kernel.org/linux-arm-kernel/20200402153845.30985-1-kursad.oney@xxxxxxxxxxxx/
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>

This looks correct to me.
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Please add this to Russell's patch tracker.

Yours,
Linus Walleij