Hello, Christina,

On Jul 24, 2018, Tamar Christina <tamar.christ...@arm.com> wrote:

> gcc/
> 2018-07-24  Tamar Christina  <tamar.christ...@arm.com>

>       PR target/86486
>       * configure.ac: Add stack-clash-protection-guard-size.
>       * doc/install.texi: Document it.
>       * config.in (DEFAULT_STK_CLASH_GUARD_SIZE): New.
>       * params.def: Update comment for guard-size.
>       * configure: Regenerate.

The configury bits look almost good to me.

I wish the help message, comments and docs expressed somehow that the
given power of two expresses a size in bytes, rather than in kilobytes,
bits or any other unit that might be reasonably assumed to express stack
sizes.  I'm afraid I don't know the best way to accomplish that in a few
words.

> +stk_clash_default=12

This seems to be left-over from an earlier patch, as it is now unused
AFAICT.

Thanks,

-- 
Alexandre Oliva, freedom fighter   https://FSFLA.org/blogs/lxo
Be the change, be Free!         FSF Latin America board member
GNU Toolchain Engineer                Free Software Evangelist

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