From: Andy Polyakov <appro@openssl.org>
Date: Tue, 10 Jun 2014 21:08:06 +0000 (+0200)
Subject: aesni-mb-x86_64.pl: add Win64 SEH.
X-Git-Tag: master-pre-reformat~663
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e2eabed110b6d88fd15ac3063cab23dcd5090b44;p=openssl

aesni-mb-x86_64.pl: add Win64 SEH.
---

diff --git a/crypto/aes/asm/aesni-mb-x86_64.pl b/crypto/aes/asm/aesni-mb-x86_64.pl
index e6ac9f9ecf..ddfe084cc7 100644
--- a/crypto/aes/asm/aesni-mb-x86_64.pl
+++ b/crypto/aes/asm/aesni-mb-x86_64.pl
@@ -115,7 +115,7 @@ $code.=<<___;
 	push	%r15
 ___
 $code.=<<___ if ($win64);
-	lea	-0x78(%rsp),%rsp
+	lea	-0xa8(%rsp),%rsp
 	movaps	%xmm6,(%rsp)
 	movaps	%xmm7,0x10(%rsp)
 	movaps	%xmm8,0x20(%rsp)
@@ -123,6 +123,9 @@ $code.=<<___ if ($win64);
 	movaps	%xmm10,0x40(%rsp)
 	movaps	%xmm11,0x50(%rsp)
 	movaps	%xmm12,0x60(%rsp)
+	movaps	%xmm13,-0x68(%rax)	# not used, saved to share se_handler 
+	movaps	%xmm14,-0x58(%rax)
+	movaps	%xmm15,-0x48(%rax)
 ___
 $code.=<<___;
 	# stack layout
@@ -323,13 +326,16 @@ $code.=<<___;
 .Lenc4x_done:
 ___
 $code.=<<___ if ($win64);
-	movaps	-0xa8(%rax),%xmm6
-	movaps	-0x98(%rax),%xmm7
-	movaps	-0x88(%rax),%xmm8
-	movaps	-0x78(%rax),%xmm9
-	movaps	-0x68(%rax),%xmm10
-	movaps	-0x58(%rax),%xmm11
-	movaps	-0x48(%rax),%xmm12
+	movaps	-0xd8(%rax),%xmm6
+	movaps	-0xc8(%rax),%xmm7
+	movaps	-0xb8(%rax),%xmm8
+	movaps	-0xa8(%rax),%xmm9
+	movaps	-0x98(%rax),%xmm10
+	movaps	-0x88(%rax),%xmm11
+	movaps	-0x78(%rax),%xmm12
+	#movaps	-0x68(%rax),%xmm13
+	#movaps	-0x58(%rax),%xmm14
+	#movaps	-0x48(%rax),%xmm15
 ___
 $code.=<<___;
 	mov	-48(%rax),%r15
@@ -339,6 +345,7 @@ $code.=<<___;
 	mov	-16(%rax),%rbp
 	mov	-8(%rax),%rbx
 	lea	(%rax),%rsp
+.Lenc4x_epilogue:
 	ret
 .size	aesni_multi_cbc_encrypt,.-aesni_multi_cbc_encrypt
 
@@ -367,7 +374,7 @@ $code.=<<___;
 	push	%r15
 ___
 $code.=<<___ if ($win64);
-	lea	-0x78(%rsp),%rsp
+	lea	-0xa8(%rsp),%rsp
 	movaps	%xmm6,(%rsp)
 	movaps	%xmm7,0x10(%rsp)
 	movaps	%xmm8,0x20(%rsp)
@@ -375,6 +382,9 @@ $code.=<<___ if ($win64);
 	movaps	%xmm10,0x40(%rsp)
 	movaps	%xmm11,0x50(%rsp)
 	movaps	%xmm12,0x60(%rsp)
+	movaps	%xmm13,-0x68(%rax)	# not used, saved to share se_handler 
+	movaps	%xmm14,-0x58(%rax)
+	movaps	%xmm15,-0x48(%rax)
 ___
 $code.=<<___;
 	# stack layout
@@ -451,8 +461,8 @@ $code.=<<___;
 	 cmp		`32+4*$i`(%rsp),$one
 	aesdec		$rndkey,@out[0]
 	aesdec		$rndkey,@out[1]
-	 cmovge		$sink,@inptr[$i]	# cancel input
 	aesdec		$rndkey,@out[2]
+	 cmovge		$sink,@inptr[$i]	# cancel input
 	 cmovg		$sink,@outptr[$i]	# sink output
 	aesdec		$rndkey,@out[3]
 	movups		`0x40+16*$i-0x78`($key),$rndkey
@@ -566,13 +576,16 @@ $code.=<<___;
 .Ldec4x_done:
 ___
 $code.=<<___ if ($win64);
-	movaps	-0xa8(%rax),%xmm6
-	movaps	-0x98(%rax),%xmm7
-	movaps	-0x88(%rax),%xmm8
-	movaps	-0x78(%rax),%xmm9
-	movaps	-0x68(%rax),%xmm10
-	movaps	-0x58(%rax),%xmm11
-	movaps	-0x48(%rax),%xmm12
+	movaps	-0xd8(%rax),%xmm6
+	movaps	-0xc8(%rax),%xmm7
+	movaps	-0xb8(%rax),%xmm8
+	movaps	-0xa8(%rax),%xmm9
+	movaps	-0x98(%rax),%xmm10
+	movaps	-0x88(%rax),%xmm11
+	movaps	-0x78(%rax),%xmm12
+	#movaps	-0x68(%rax),%xmm13
+	#movaps	-0x58(%rax),%xmm14
+	#movaps	-0x48(%rax),%xmm15
 ___
 $code.=<<___;
 	mov	-48(%rax),%r15
@@ -582,6 +595,7 @@ $code.=<<___;
 	mov	-16(%rax),%rbp
 	mov	-8(%rax),%rbx
 	lea	(%rax),%rsp
+.Ldec4x_epilogue:
 	ret
 .size	aesni_multi_cbc_decrypt,.-aesni_multi_cbc_decrypt
 ___
@@ -864,6 +878,7 @@ $code.=<<___;
 	mov	-16(%rax),%rbp
 	mov	-8(%rax),%rbx
 	lea	(%rax),%rsp
+.Lenc8x_epilogue:
 	ret
 .size	aesni_multi_cbc_encrypt_avx,.-aesni_multi_cbc_encrypt_avx
 
@@ -1169,11 +1184,156 @@ $code.=<<___;
 	mov	-16(%rax),%rbp
 	mov	-8(%rax),%rbx
 	lea	(%rax),%rsp
+.Ldec8x_epilogue:
 	ret
 .size	aesni_multi_cbc_decrypt_avx,.-aesni_multi_cbc_decrypt_avx
 ___
 						}}}
 
+if ($win64) {
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
+$code.=<<___;
+.extern	__imp_RtlVirtualUnwind
+.type	se_handler,\@abi-omnipotent
+.align	16
+se_handler:
+	push	%rsi
+	push	%rdi
+	push	%rbx
+	push	%rbp
+	push	%r12
+	push	%r13
+	push	%r14
+	push	%r15
+	pushfq
+	sub	\$64,%rsp
+
+	mov	120($context),%rax	# pull context->Rax
+	mov	248($context),%rbx	# pull context->Rip
+
+	mov	8($disp),%rsi		# disp->ImageBase
+	mov	56($disp),%r11		# disp->HandlerData
+
+	mov	0(%r11),%r10d		# HandlerData[0]
+	lea	(%rsi,%r10),%r10	# prologue label
+	cmp	%r10,%rbx		# context->Rip<.Lprologue
+	jb	.Lin_prologue
+
+	mov	152($context),%rax	# pull context->Rsp
+
+	mov	4(%r11),%r10d		# HandlerData[1]
+	lea	(%rsi,%r10),%r10	# epilogue label
+	cmp	%r10,%rbx		# context->Rip>=.Lepilogue
+	jae	.Lin_prologue
+
+	mov	16(%rax),%rax		# pull saved stack pointer
+
+	mov	-8(%rax),%rbx
+	mov	-16(%rax),%rbp
+	mov	-24(%rax),%r12
+	mov	-32(%rax),%r13
+	mov	-40(%rax),%r14
+	mov	-48(%rax),%r15
+	mov	%rbx,144($context)	# restore context->Rbx
+	mov	%rbp,160($context)	# restore context->Rbp
+	mov	%r12,216($context)	# restore cotnext->R12
+	mov	%r13,224($context)	# restore cotnext->R13
+	mov	%r14,232($context)	# restore cotnext->R14
+	mov	%r15,240($context)	# restore cotnext->R15
+
+	lea	-56-10*16(%rax),%rsi
+	lea	512($context),%rdi	# &context.Xmm6
+	mov	\$20,%ecx
+	.long	0xa548f3fc		# cld; rep movsq
+
+.Lin_prologue:
+	mov	8(%rax),%rdi
+	mov	16(%rax),%rsi
+	mov	%rax,152($context)	# restore context->Rsp
+	mov	%rsi,168($context)	# restore context->Rsi
+	mov	%rdi,176($context)	# restore context->Rdi
+
+	mov	40($disp),%rdi		# disp->ContextRecord
+	mov	$context,%rsi		# context
+	mov	\$154,%ecx		# sizeof(CONTEXT)
+	.long	0xa548f3fc		# cld; rep movsq
+
+	mov	$disp,%rsi
+	xor	%rcx,%rcx		# arg1, UNW_FLAG_NHANDLER
+	mov	8(%rsi),%rdx		# arg2, disp->ImageBase
+	mov	0(%rsi),%r8		# arg3, disp->ControlPc
+	mov	16(%rsi),%r9		# arg4, disp->FunctionEntry
+	mov	40(%rsi),%r10		# disp->ContextRecord
+	lea	56(%rsi),%r11		# &disp->HandlerData
+	lea	24(%rsi),%r12		# &disp->EstablisherFrame
+	mov	%r10,32(%rsp)		# arg5
+	mov	%r11,40(%rsp)		# arg6
+	mov	%r12,48(%rsp)		# arg7
+	mov	%rcx,56(%rsp)		# arg8, (NULL)
+	call	*__imp_RtlVirtualUnwind(%rip)
+
+	mov	\$1,%eax		# ExceptionContinueSearch
+	add	\$64,%rsp
+	popfq
+	pop	%r15
+	pop	%r14
+	pop	%r13
+	pop	%r12
+	pop	%rbp
+	pop	%rbx
+	pop	%rdi
+	pop	%rsi
+	ret
+.size	se_handler,.-se_handler
+
+.section	.pdata
+.align	4
+	.rva	.LSEH_begin_aesni_multi_cbc_encrypt
+	.rva	.LSEH_end_aesni_multi_cbc_encrypt
+	.rva	.LSEH_info_aesni_multi_cbc_encrypt
+	.rva	.LSEH_begin_aesni_multi_cbc_decrypt
+	.rva	.LSEH_end_aesni_multi_cbc_decrypt
+	.rva	.LSEH_info_aesni_multi_cbc_decrypt
+___
+$code.=<<___ if ($avx);
+	.rva	.LSEH_begin_aesni_multi_cbc_encrypt_avx
+	.rva	.LSEH_end_aesni_multi_cbc_encrypt_avx
+	.rva	.LSEH_info_aesni_multi_cbc_encrypt_avx
+	.rva	.LSEH_begin_aesni_multi_cbc_decrypt_avx
+	.rva	.LSEH_end_aesni_multi_cbc_decrypt_avx
+	.rva	.LSEH_info_aesni_multi_cbc_decrypt_avx
+___
+$code.=<<___;
+.section	.xdata
+.align	8
+.LSEH_info_aesni_multi_cbc_encrypt:
+	.byte	9,0,0,0
+	.rva	se_handler
+	.rva	.Lenc4x_body,.Lenc4x_epilogue		# HandlerData[]
+.LSEH_info_aesni_multi_cbc_decrypt:
+	.byte	9,0,0,0
+	.rva	se_handler
+	.rva	.Ldec4x_body,.Ldec4x_epilogue		# HandlerData[]
+___
+$code.=<<___ if ($avx);
+.LSEH_info_aesni_multi_cbc_encrypt_avx:
+	.byte	9,0,0,0
+	.rva	se_handler
+	.rva	.Lenc8x_body,.Lenc8x_epilogue		# HandlerData[]
+.LSEH_info_aesni_multi_cbc_decrypt_avx:
+	.byte	9,0,0,0
+	.rva	se_handler
+	.rva	.Ldec8x_body,.Ldec8x_epilogue		# HandlerData[]
+___
+}
+####################################################################
+
 sub rex {
   local *opcode=shift;
   my ($dst,$src)=@_;