From ea4d5005d957e5908e2d860cf18416f3f626f9a3 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Mon, 22 Dec 2008 14:15:11 +0000
Subject: cmll-x86_64.pl: Win64 SEH section to handle pushf/popf in CBC
 routine.

---
 crypto/camellia/asm/cmll-x86_64.pl | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'crypto/camellia')

diff --git a/crypto/camellia/asm/cmll-x86_64.pl b/crypto/camellia/asm/cmll-x86_64.pl
index 199165f95f..4fe87e99f2 100644
--- a/crypto/camellia/asm/cmll-x86_64.pl
+++ b/crypto/camellia/asm/cmll-x86_64.pl
@@ -742,12 +742,14 @@ Camellia_cbc_encrypt:
 	mov	%rax,8+$ivec
 	mov	%rax,$_res
 
+.Lcbc_enc_pushf:
 	pushfq
 	cld
 	mov	$inp,%rsi
 	lea	$ivec,%rdi
 	.long	0x9066A4F3		# rep movsb
 	popfq
+.Lcbc_enc_popf:
 
 	lea	$ivec,$inp
 	lea	16+$ivec,%rax
@@ -830,12 +832,14 @@ Camellia_cbc_encrypt:
 	mov	@S[2],8+$ivec
 	mov	@S[3],12+$ivec
 
+.Lcbc_dec_pushf:
 	pushfq
 	cld
 	lea	$ivec,%rsi
 	lea	($out),%rdi
 	.long	0x9066A4F3		# rep movsb
 	popfq
+.Lcbc_dec_popf:
 
 	mov	%rax,(%rdx)		# write out IV residue
 	mov	%rbx,8(%rdx)
@@ -954,6 +958,25 @@ cbc_se_handler:
 	cmp	%r10,%rbx		# context->Rip>=.Lcbc_abort
 	jae	.Lin_cbc_prologue
 
+	# handle pushf/popf in Camellia_cbc_encrypt
+	lea	.Lcbc_enc_pushf(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip<=.Lcbc_enc_pushf
+	jbe	.Lin_cbc_no_flag
+	lea	8(%rax),%rax
+	lea	.Lcbc_enc_popf(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip<.Lcbc_enc_popf
+	jb	.Lin_cbc_no_flag
+	lea	-8(%rax),%rax
+	lea	.Lcbc_dec_pushf(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip<=.Lcbc_dec_pushf
+	jbe	.Lin_cbc_no_flag
+	lea	8(%rax),%rax
+	lea	.Lcbc_dec_popf(%rip),%r10
+	cmp	%r10,%rbx		# context->Rip<.Lcbc_dec_popf
+	jb	.Lin_cbc_no_flag
+	lea	-8(%rax),%rax
+
+.Lin_cbc_no_flag:
 	mov	48(%rax),%rax		# $_rsp
 	lea	48(%rax),%rax
 
-- 
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