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Commit bd34ecba authored by Andy Polyakov's avatar Andy Polyakov
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bn/asm/x86[_64]-mont*.pl: complement alloca with page-walking.



Some OSes, *cough*-dows, insist on stack being "wired" to
physical memory in strictly sequential manner, i.e. if stack
allocation spans two pages, then reference to farmost one can
be punishable by SEGV. But page walking can do good even on
other OSes, because it guarantees that villain thread hits
the guard page before it can make damage to innocent one...

Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
(cherry picked from commit adc4f1fc)
parent ba26fa14
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