[Bug middle-end/13182] -fstack-check probes too distant when allocating on stack
ebotcazou at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue May 30 11:10:00 GMT 2017
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13182
--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> To be clear: x86/Linux and x86-64/Linux (and for them there is no protection
> area during the probing).
I misremembered: there is exactly one page of protection area for them because
of the way the unwinding mechanism (run on the alternate stack) restores the
regular execution of the program.
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