From 65b7de10c982a3c88e6b6ea6465bea848600363d Mon Sep 17 00:00:00 2001
From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Sun, 22 Dec 2019 16:29:17 +0100
Subject: [PATCH] Add some missing cfi frame info in poly1305-x86_64.pl

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/10678)

(cherry picked from commit 048fa13e5ef4ccd730561f79a6c91f38365994d1)
---
 crypto/poly1305/asm/poly1305-x86_64.pl | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/crypto/poly1305/asm/poly1305-x86_64.pl b/crypto/poly1305/asm/poly1305-x86_64.pl
index 342ad7f18a..4b81c5ac0c 100755
--- a/crypto/poly1305/asm/poly1305-x86_64.pl
+++ b/crypto/poly1305/asm/poly1305-x86_64.pl
@@ -168,6 +168,7 @@ $code.=<<___;
 .type	poly1305_init,\@function,3
 .align	32
 poly1305_init:
+.cfi_startproc
 	xor	%rax,%rax
 	mov	%rax,0($ctx)		# initialize hash value
 	mov	%rax,8($ctx)
@@ -219,6 +220,7 @@ $code.=<<___;
 	mov	\$1,%eax
 .Lno_key:
 	ret
+.cfi_endproc
 .size	poly1305_init,.-poly1305_init
 
 .type	poly1305_blocks,\@function,4
@@ -298,6 +300,7 @@ $code.=<<___;
 .type	poly1305_emit,\@function,3
 .align	32
 poly1305_emit:
+.cfi_startproc
 .Lemit:
 	mov	0($ctx),%r8	# load hash value
 	mov	8($ctx),%r9
@@ -318,6 +321,7 @@ poly1305_emit:
 	mov	%rcx,8($mac)
 
 	ret
+.cfi_endproc
 .size	poly1305_emit,.-poly1305_emit
 ___
 if ($avx) {
@@ -342,15 +346,18 @@ $code.=<<___;
 .type	__poly1305_block,\@abi-omnipotent
 .align	32
 __poly1305_block:
+.cfi_startproc
 ___
 	&poly1305_iteration();
 $code.=<<___;
 	ret
+.cfi_endproc
 .size	__poly1305_block,.-__poly1305_block
 
 .type	__poly1305_init_avx,\@abi-omnipotent
 .align	32
 __poly1305_init_avx:
+.cfi_startproc
 	mov	$r0,$h0
 	mov	$r1,$h1
 	xor	$h2,$h2
@@ -508,6 +515,7 @@ __poly1305_init_avx:
 
 	lea	-48-64($ctx),$ctx	# size [de-]optimization
 	ret
+.cfi_endproc
 .size	__poly1305_init_avx,.-__poly1305_init_avx
 
 .type	poly1305_blocks_avx,\@function,4
@@ -1373,6 +1381,7 @@ $code.=<<___;
 .type	poly1305_emit_avx,\@function,3
 .align	32
 poly1305_emit_avx:
+.cfi_startproc
 	cmpl	\$0,20($ctx)	# is_base2_26?
 	je	.Lemit
 
@@ -1423,6 +1432,7 @@ poly1305_emit_avx:
 	mov	%rcx,8($mac)
 
 	ret
+.cfi_endproc
 .size	poly1305_emit_avx,.-poly1305_emit_avx
 ___
 
@@ -2741,6 +2751,7 @@ $code.=<<___;
 .type	poly1305_init_base2_44,\@function,3
 .align	32
 poly1305_init_base2_44:
+.cfi_startproc
 	xor	%rax,%rax
 	mov	%rax,0($ctx)		# initialize hash value
 	mov	%rax,8($ctx)
@@ -2782,6 +2793,7 @@ ___
 $code.=<<___;
 	mov	\$1,%eax
 	ret
+.cfi_endproc
 .size	poly1305_init_base2_44,.-poly1305_init_base2_44
 ___
 {
@@ -2793,6 +2805,7 @@ $code.=<<___;
 .type	poly1305_blocks_vpmadd52,\@function,4
 .align	32
 poly1305_blocks_vpmadd52:
+.cfi_startproc
 	shr	\$4,$len
 	jz	.Lno_data_vpmadd52		# too short
 
@@ -2899,6 +2912,7 @@ poly1305_blocks_vpmadd52:
 
 .Lno_data_vpmadd52:
 	ret
+.cfi_endproc
 .size	poly1305_blocks_vpmadd52,.-poly1305_blocks_vpmadd52
 ___
 }
@@ -2916,6 +2930,7 @@ $code.=<<___;
 .type	poly1305_blocks_vpmadd52_4x,\@function,4
 .align	32
 poly1305_blocks_vpmadd52_4x:
+.cfi_startproc
 	shr	\$4,$len
 	jz	.Lno_data_vpmadd52_4x		# too short
 
@@ -3340,6 +3355,7 @@ poly1305_blocks_vpmadd52_4x:
 
 .Lno_data_vpmadd52_4x:
 	ret
+.cfi_endproc
 .size	poly1305_blocks_vpmadd52_4x,.-poly1305_blocks_vpmadd52_4x
 ___
 }
@@ -3358,6 +3374,7 @@ $code.=<<___;
 .type	poly1305_blocks_vpmadd52_8x,\@function,4
 .align	32
 poly1305_blocks_vpmadd52_8x:
+.cfi_startproc
 	shr	\$4,$len
 	jz	.Lno_data_vpmadd52_8x		# too short
 
@@ -3713,6 +3730,7 @@ $code.=<<___;
 
 .Lno_data_vpmadd52_8x:
 	ret
+.cfi_endproc
 .size	poly1305_blocks_vpmadd52_8x,.-poly1305_blocks_vpmadd52_8x
 ___
 }
@@ -3720,6 +3738,7 @@ $code.=<<___;
 .type	poly1305_emit_base2_44,\@function,3
 .align	32
 poly1305_emit_base2_44:
+.cfi_startproc
 	mov	0($ctx),%r8	# load hash value
 	mov	8($ctx),%r9
 	mov	16($ctx),%r10
@@ -3750,6 +3769,7 @@ poly1305_emit_base2_44:
 	mov	%rcx,8($mac)
 
 	ret
+.cfi_endproc
 .size	poly1305_emit_base2_44,.-poly1305_emit_base2_44
 ___
 }	}	}
@@ -3800,6 +3820,7 @@ $code.=<<___;
 .type	xor128_encrypt_n_pad,\@abi-omnipotent
 .align	16
 xor128_encrypt_n_pad:
+.cfi_startproc
 	sub	$otp,$inp
 	sub	$otp,$out
 	mov	$len,%r10		# put len aside
@@ -3841,12 +3862,14 @@ xor128_encrypt_n_pad:
 .Ldone_enc:
 	mov	$otp,%rax
 	ret
+.cfi_endproc
 .size	xor128_encrypt_n_pad,.-xor128_encrypt_n_pad
 
 .globl	xor128_decrypt_n_pad
 .type	xor128_decrypt_n_pad,\@abi-omnipotent
 .align	16
 xor128_decrypt_n_pad:
+.cfi_startproc
 	sub	$otp,$inp
 	sub	$otp,$out
 	mov	$len,%r10		# put len aside
@@ -3892,6 +3915,7 @@ xor128_decrypt_n_pad:
 .Ldone_dec:
 	mov	$otp,%rax
 	ret
+.cfi_endproc
 .size	xor128_decrypt_n_pad,.-xor128_decrypt_n_pad
 ___
 }
-- 
2.25.1