Re: [PATCH v3] ARM: imx: Fix suspend/resume crash with Clang CFI

On 2026-07-20 9:29 PM, Sami Tolvanen wrote:
> Would it be possible to just copy the 4-byte CFI hash prefix to OCRAM
> when relocating the function? If not, the __nocfi approach seems
> reasonable to me.
> 
> Sami

I gave this a try - I tried copying 4 bytes from before imx6_suspend
into OCRAM, but when I tested it on physical hardware (Kobo Clara HD),
it still crashed on suspend.

I suspect it's because imx6_suspend is written in assembly
(suspend-imx6.S) rather than C, so Clang doesn't emit a CFI hash prefix
before it in the first place.

Best regards,
Yo'av