[Bug target/81708] The x86 stack canary location should be customizable

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81708

--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Uroš Bizjak from comment #3)
> Created attachment 41949 [details]
> Patch that introduces mstack-protector-guard-offset= and
> mstack-protector-guard-reg=

e.g.:

-mstack-protector-guard-reg=%fs -mstack-protector-guard-offset=0x200