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On Windows, page walking is known as __chkstk.

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(Imports upstream's 0a86f668212acfa6b48abacbc17b99c234eedf33.)

Change-Id: Ie31d99f8cc3e93b6a9c7c5daa066de96941b3f7c
Reviewed-on: https://boringssl-review.googlesource.com/13770
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This commit is contained in:
Adam Langley 2017-02-09 12:14:45 -08:00 committed by David Benjamin
parent b8344501d3
commit 073a06d3da
3 changed files with 6 additions and 0 deletions
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2
crypto/bn/asm/x86-mont.pl
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@ -88,6 +88,8 @@ $frame=32; # size of above frame rounded up to 16n
&and ("esp",-64); # align to cache line
# An OS-agnostic version of __chkstk.
#
# Some OSes (Windows) 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

2
crypto/bn/asm/x86_64-mont.pl
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@ -117,6 +117,8 @@ $code.=<<___;
mov %r11,8(%rsp,$num,8) # tp[num+1]=%rsp
.Lmul_body:
# An OS-agnostic version of __chkstk.
#
# Some OSes (Windows) 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

2
crypto/bn/asm/x86_64-mont5.pl
View File

@ -102,6 +102,8 @@ $code.=<<___;
mov %rax,8(%rsp,$num,8) # tp[num+1]=%rsp
.Lmul_body:
# An OS-agnostic version of __chkstk.
#
# Some OSes (Windows) 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