Re: [PATCH v2] Documentation: x86: exception-tables: document CONFIG_BUILDTIME_TABLE_SORT

[Jonathan Corbet]

On Thu, 26 Mar 2020 17:09:51 -0700
Nick Desaulniers <ndesaulniers@xxxxxxxxxx> wrote:

> Provide more information about __ex_table sorting post link.
> 
> The exception tables and fixup tables use a commonly recurring pattern
> in the kernel of storing the address of labels as date in custom ELF
> sections, then finding these sections, iterating elements within them,
> and possibly revisiting them or modifying the data at these addresses.
> 
> Sorting readonly arrays to minimize runtime penalties is quite clever.
> 
> Suggested-by: H. Peter Anvin <hpa@xxxxxxxxx>
> Signed-off-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>

I've applied this, thanks.

jon