Re: [PATCHv3] ARM: Sort exception table at compile time

From: Will Deacon
Date: Thu Oct 25 2012 - 08:28:59 EST


On Thu, Oct 25, 2012 at 01:44:42AM +0100, Stephen Boyd wrote:
> Add the ARM machine identifier to sortextable and select the
> config option so that we can sort the exception table at compile
> time. sortextable relies on a section named __ex_table existing
> in the vmlinux, but ARM's linker script places the exception
> table in the data section. Give the exception table its own
> section so that sortextable can find it.
>
> This allows us to skip the sorting step during boot.
>
> Cc: David Daney <david.daney@xxxxxxxxxx>
> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
> ---

Just had a play with this for my A15 platform and it seems to work fine when
targetting either ARM or Thumb-2 kernels.

Tested-by: Will Deacon <will.deacon@xxxxxxx>

Cheers,

Will
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