[PATCH v2] ARM: mm: flip priority of CONFIG_DEBUG_RODATA

Tony Lindgren tony at atomide.com
Wed Dec 23 13:29:12 PST 2015


* Laura Abbott <labbott at redhat.com> [151223 12:31]:
> Looks like a case similar to Geert's
>         adr     r7, kick_counter
> wait_dll_lock_timed:
>         ldr     r4, wait_dll_lock_counter
>         add     r4, r4, #1
>         str     r4, [r7, #wait_dll_lock_counter - kick_counter]
>         ldr     r4, sdrc_dlla_status
>         /* Wait 20uS for lock */
>         mov     r6, #8
> kick_counter and wait_dll_lock_counter are in the text section which is marked read only.
> They need to be moved to the data section along with a few other variables from what I
> can tell (maybe those are read only?).

Thanks for looking, yeah so it seem.

> I suspect this is going to be a common issue with suspend/resume code paths since those
> are hand written assembly.

Yes I suspect we have quite a few cases like this.



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