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

From: Florian Fainelli
Date: Wed Jul 06 2022 - 14:10:04 EST


On 7/6/22 09:31, Alexander A Sverdlin 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>

I would be inclined to slap a Fixes tag to this patch so we get it back ported where appropriate, however it is not clear to me which specific
commit(s) we should be listing here.

Thanks Alexander!
--
Florian