From: Emilia Kasper <emilia@openssl.org>
Date: Tue, 15 Mar 2016 22:04:14 +0000 (+0100)
Subject: On Windows, page walking is known as __chkstk.
X-Git-Tag: OpenSSL_1_1_0-pre4~10
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0a86f668212acfa6b48abacbc17b99c234eedf33;p=oweals%2Fopenssl.git

On Windows, page walking is known as __chkstk.

Reviewed-by: Andy Polyakov <appro@openssl.org>
---

diff --git a/crypto/bn/asm/x86-mont.pl b/crypto/bn/asm/x86-mont.pl
index 50d3350714..7c4e0b2ee3 100755
--- a/crypto/bn/asm/x86-mont.pl
+++ b/crypto/bn/asm/x86-mont.pl
@@ -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
diff --git a/crypto/bn/asm/x86_64-mont.pl b/crypto/bn/asm/x86_64-mont.pl
index f8070ca246..3e0a78e41f 100755
--- a/crypto/bn/asm/x86_64-mont.pl
+++ b/crypto/bn/asm/x86_64-mont.pl
@@ -130,6 +130,8 @@ $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
diff --git a/crypto/bn/asm/x86_64-mont5.pl b/crypto/bn/asm/x86_64-mont5.pl
index 712bfbc6b8..aa6a5d1d0e 100755
--- a/crypto/bn/asm/x86_64-mont5.pl
+++ b/crypto/bn/asm/x86_64-mont5.pl
@@ -115,6 +115,8 @@ $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