From 76e624a003db22db2d99ece04a15e20fe44c1fbe Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Wed, 8 Feb 2017 10:12:28 +0100
Subject: [PATCH] bn/asm/x86_64*: add DWARF CFI directives.

Reviewed-by: Rich Salz <rsalz@openssl.org>
---
 crypto/bn/asm/rsaz-avx2.pl    |  40 ++++++++++++
 crypto/bn/asm/rsaz-x86_64.pl  |  85 ++++++++++++++++++++++++++
 crypto/bn/asm/x86_64-gf2m.pl  |  18 ++++++
 crypto/bn/asm/x86_64-mont.pl  |  72 ++++++++++++++++++++++
 crypto/bn/asm/x86_64-mont5.pl | 111 +++++++++++++++++++++++++++++++++-
 5 files changed, 324 insertions(+), 2 deletions(-)

diff --git a/crypto/bn/asm/rsaz-avx2.pl b/crypto/bn/asm/rsaz-avx2.pl
index 6d23fefd2c..f45c2149fc 100755
--- a/crypto/bn/asm/rsaz-avx2.pl
+++ b/crypto/bn/asm/rsaz-avx2.pl
@@ -168,13 +168,21 @@ $code.=<<___;
 .type	rsaz_1024_sqr_avx2,\@function,5
 .align	64
 rsaz_1024_sqr_avx2:		# 702 cycles, 14% faster than rsaz_1024_mul_avx2
+.cfi_startproc
 	lea	(%rsp), %rax
+.cfi_def_cfa_register	%rax
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 	vzeroupper
 ___
 $code.=<<___ if ($win64);
@@ -193,6 +201,7 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	mov	%rax,%rbp
+.cfi_def_cfa_register	%rbp
 	mov	%rdx, $np			# reassigned argument
 	sub	\$$FrameSize, %rsp
 	mov	$np, $tmp
@@ -825,6 +834,7 @@ $code.=<<___;
 
 	vzeroall
 	mov	%rbp, %rax
+.cfi_def_cfa_register	%rax
 ___
 $code.=<<___ if ($win64);
 .Lsqr_1024_in_tail:
@@ -841,14 +851,22 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	mov	-48(%rax),%r15
+.cfi_restore	%r15
 	mov	-40(%rax),%r14
+.cfi_restore	%r14
 	mov	-32(%rax),%r13
+.cfi_restore	%r13
 	mov	-24(%rax),%r12
+.cfi_restore	%r12
 	mov	-16(%rax),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rax),%rbx
+.cfi_restore	%rbx
 	lea	(%rax),%rsp		# restore %rsp
+.cfi_def_cfa_register	%rsp
 .Lsqr_1024_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_1024_sqr_avx2,.-rsaz_1024_sqr_avx2
 ___
 }
@@ -901,13 +919,21 @@ $code.=<<___;
 .type	rsaz_1024_mul_avx2,\@function,5
 .align	64
 rsaz_1024_mul_avx2:
+.cfi_startproc
 	lea	(%rsp), %rax
+.cfi_def_cfa_register	%rax
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 ___
 $code.=<<___ if ($win64);
 	vzeroupper
@@ -926,6 +952,7 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	mov	%rax,%rbp
+.cfi_def_cfa_register	%rbp
 	vzeroall
 	mov	%rdx, $bp	# reassigned argument
 	sub	\$64,%rsp
@@ -1459,6 +1486,7 @@ $code.=<<___;
 	vzeroupper
 
 	mov	%rbp, %rax
+.cfi_def_cfa_register	%rax
 ___
 $code.=<<___ if ($win64);
 .Lmul_1024_in_tail:
@@ -1475,14 +1503,22 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	mov	-48(%rax),%r15
+.cfi_restore	%r15
 	mov	-40(%rax),%r14
+.cfi_restore	%r14
 	mov	-32(%rax),%r13
+.cfi_restore	%r13
 	mov	-24(%rax),%r12
+.cfi_restore	%r12
 	mov	-16(%rax),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rax),%rbx
+.cfi_restore	%rbx
 	lea	(%rax),%rsp		# restore %rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_1024_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_1024_mul_avx2,.-rsaz_1024_mul_avx2
 ___
 }
@@ -1601,8 +1637,10 @@ rsaz_1024_scatter5_avx2:
 .type	rsaz_1024_gather5_avx2,\@abi-omnipotent
 .align	32
 rsaz_1024_gather5_avx2:
+.cfi_startproc
 	vzeroupper
 	mov	%rsp,%r11
+.cfi_def_cfa_register	%r11
 ___
 $code.=<<___ if ($win64);
 	lea	-0x88(%rsp),%rax
@@ -1743,7 +1781,9 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	lea	(%r11),%rsp
+.cfi_def_cfa_register	%rsp
 	ret
+.cfi_endproc
 .LSEH_end_rsaz_1024_gather5:
 .size	rsaz_1024_gather5_avx2,.-rsaz_1024_gather5_avx2
 ___
diff --git a/crypto/bn/asm/rsaz-x86_64.pl b/crypto/bn/asm/rsaz-x86_64.pl
index 7bcfafe8dd..1b88026f08 100755
--- a/crypto/bn/asm/rsaz-x86_64.pl
+++ b/crypto/bn/asm/rsaz-x86_64.pl
@@ -138,14 +138,22 @@ $code.=<<___;
 .type	rsaz_512_sqr,\@function,5
 .align	32
 rsaz_512_sqr:				# 25-29% faster than rsaz_512_mul
+.cfi_startproc
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	subq	\$128+24, %rsp
+.cfi_adjust_cfa_offset	128+24
 .Lsqr_body:
 	movq	$mod, %rbp		# common argument
 	movq	($inp), %rdx
@@ -800,15 +808,24 @@ ___
 $code.=<<___;
 
 	leaq	128+24+48(%rsp), %rax
+.cfi_def_cfa	%rax,8
 	movq	-48(%rax), %r15
+.cfi_restore	%r15
 	movq	-40(%rax), %r14
+.cfi_restore	%r14
 	movq	-32(%rax), %r13
+.cfi_restore	%r13
 	movq	-24(%rax), %r12
+.cfi_restore	%r12
 	movq	-16(%rax), %rbp
+.cfi_restore	%rbp
 	movq	-8(%rax), %rbx
+.cfi_restore	%rbx
 	leaq	(%rax), %rsp
+.cfi_def_cfa_register	%rsp
 .Lsqr_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_512_sqr,.-rsaz_512_sqr
 ___
 }
@@ -819,14 +836,22 @@ $code.=<<___;
 .type	rsaz_512_mul,\@function,5
 .align	32
 rsaz_512_mul:
+.cfi_startproc
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	subq	\$128+24, %rsp
+.cfi_adjust_cfa_offset	128+24
 .Lmul_body:
 	movq	$out, %xmm0		# off-load arguments
 	movq	$mod, %xmm1
@@ -896,15 +921,24 @@ $code.=<<___;
 	call	__rsaz_512_subtract
 
 	leaq	128+24+48(%rsp), %rax
+.cfi_def_cfa	%rax,8
 	movq	-48(%rax), %r15
+.cfi_restore	%r15
 	movq	-40(%rax), %r14
+.cfi_restore	%r14
 	movq	-32(%rax), %r13
+.cfi_restore	%r13
 	movq	-24(%rax), %r12
+.cfi_restore	%r12
 	movq	-16(%rax), %rbp
+.cfi_restore	%rbp
 	movq	-8(%rax), %rbx
+.cfi_restore	%rbx
 	leaq	(%rax), %rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_512_mul,.-rsaz_512_mul
 ___
 }
@@ -915,14 +949,22 @@ $code.=<<___;
 .type	rsaz_512_mul_gather4,\@function,6
 .align	32
 rsaz_512_mul_gather4:
+.cfi_startproc
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	subq	\$`128+24+($win64?0xb0:0)`, %rsp
+.cfi_adjust_cfa_offset	`128+24+($win64?0xb0:0)`
 ___
 $code.=<<___	if ($win64);
 	movaps	%xmm6,0xa0(%rsp)
@@ -1348,15 +1390,24 @@ $code.=<<___	if ($win64);
 	lea	0xb0(%rax),%rax
 ___
 $code.=<<___;
+.cfi_def_cfa	%rax,8
 	movq	-48(%rax), %r15
+.cfi_restore	%r15
 	movq	-40(%rax), %r14
+.cfi_restore	%r14
 	movq	-32(%rax), %r13
+.cfi_restore	%r13
 	movq	-24(%rax), %r12
+.cfi_restore	%r12
 	movq	-16(%rax), %rbp
+.cfi_restore	%rbp
 	movq	-8(%rax), %rbx
+.cfi_restore	%rbx
 	leaq	(%rax), %rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_gather4_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_512_mul_gather4,.-rsaz_512_mul_gather4
 ___
 }
@@ -1367,15 +1418,23 @@ $code.=<<___;
 .type	rsaz_512_mul_scatter4,\@function,6
 .align	32
 rsaz_512_mul_scatter4:
+.cfi_startproc
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	mov	$pwr, $pwr
 	subq	\$128+24, %rsp
+.cfi_adjust_cfa_offset	128+24
 .Lmul_scatter4_body:
 	leaq	($tbl,$pwr,8), $tbl
 	movq	$out, %xmm0		# off-load arguments
@@ -1458,15 +1517,24 @@ $code.=<<___;
 	movq	%r15, 128*7($inp)
 
 	leaq	128+24+48(%rsp), %rax
+.cfi_def_cfa	%rax,8
 	movq	-48(%rax), %r15
+.cfi_restore	%r15
 	movq	-40(%rax), %r14
+.cfi_restore	%r14
 	movq	-32(%rax), %r13
+.cfi_restore	%r13
 	movq	-24(%rax), %r12
+.cfi_restore	%r12
 	movq	-16(%rax), %rbp
+.cfi_restore	%rbp
 	movq	-8(%rax), %rbx
+.cfi_restore	%rbx
 	leaq	(%rax), %rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_scatter4_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_512_mul_scatter4,.-rsaz_512_mul_scatter4
 ___
 }
@@ -1477,14 +1545,22 @@ $code.=<<___;
 .type	rsaz_512_mul_by_one,\@function,4
 .align	32
 rsaz_512_mul_by_one:
+.cfi_startproc
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	subq	\$128+24, %rsp
+.cfi_adjust_cfa_offset	128+24
 .Lmul_by_one_body:
 ___
 $code.=<<___ if ($addx);
@@ -1539,15 +1615,24 @@ $code.=<<___;
 	movq	%r15, 56($out)
 
 	leaq	128+24+48(%rsp), %rax
+.cfi_def_cfa	%rax,8
 	movq	-48(%rax), %r15
+.cfi_restore	%r15
 	movq	-40(%rax), %r14
+.cfi_restore	%r14
 	movq	-32(%rax), %r13
+.cfi_restore	%r13
 	movq	-24(%rax), %r12
+.cfi_restore	%r12
 	movq	-16(%rax), %rbp
+.cfi_restore	%rbp
 	movq	-8(%rax), %rbx
+.cfi_restore	%rbx
 	leaq	(%rax), %rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_by_one_epilogue:
 	ret
+.cfi_endproc
 .size	rsaz_512_mul_by_one,.-rsaz_512_mul_by_one
 ___
 }
diff --git a/crypto/bn/asm/x86_64-gf2m.pl b/crypto/bn/asm/x86_64-gf2m.pl
index d237c1e3d2..0181f52ca4 100644
--- a/crypto/bn/asm/x86_64-gf2m.pl
+++ b/crypto/bn/asm/x86_64-gf2m.pl
@@ -54,7 +54,9 @@ $code.=<<___;
 .type	_mul_1x1,\@abi-omnipotent
 .align	16
 _mul_1x1:
+.cfi_startproc
 	sub	\$128+8,%rsp
+.cfi_adjust_cfa_offset	128+8
 	mov	\$-1,$a1
 	lea	($a,$a),$i0
 	shr	\$3,$a1
@@ -160,8 +162,10 @@ $code.=<<___;
 	xor	$i1,$hi
 
 	add	\$128+8,%rsp
+.cfi_adjust_cfa_offset	-128-8
 	ret
 .Lend_mul_1x1:
+.cfi_endproc
 .size	_mul_1x1,.-_mul_1x1
 ___
 
@@ -174,6 +178,7 @@ $code.=<<___;
 .type	bn_GF2m_mul_2x2,\@abi-omnipotent
 .align	16
 bn_GF2m_mul_2x2:
+.cfi_startproc
 	mov	%rsp,%rax
 	mov	OPENSSL_ia32cap_P(%rip),%r10
 	bt	\$33,%r10
@@ -211,6 +216,7 @@ $code.=<<___;
 .align	16
 .Lvanilla_mul_2x2:
 	lea	-8*17(%rsp),%rsp
+.cfi_adjust_cfa_offset	8*17
 ___
 $code.=<<___ if ($win64);
 	mov	`8*17+40`(%rsp),$b0
@@ -219,10 +225,15 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	mov	%r14,8*10(%rsp)
+.cfi_rel_offset	%r14,8*10
 	mov	%r13,8*11(%rsp)
+.cfi_rel_offset	%r13,8*11
 	mov	%r12,8*12(%rsp)
+.cfi_rel_offset	%r12,8*12
 	mov	%rbp,8*13(%rsp)
+.cfi_rel_offset	%rbp,8*13
 	mov	%rbx,8*14(%rsp)
+.cfi_rel_offset	%rbx,8*14
 .Lbody_mul_2x2:
 	mov	$rp,32(%rsp)		# save the arguments
 	mov	$a1,40(%rsp)
@@ -270,10 +281,15 @@ $code.=<<___;
 	mov	$lo,8(%rbp)
 
 	mov	8*10(%rsp),%r14
+.cfi_restore	%r14
 	mov	8*11(%rsp),%r13
+.cfi_restore	%r13
 	mov	8*12(%rsp),%r12
+.cfi_restore	%r12
 	mov	8*13(%rsp),%rbp
+.cfi_restore	%rbp
 	mov	8*14(%rsp),%rbx
+.cfi_restore	%rbx
 ___
 $code.=<<___ if ($win64);
 	mov	8*15(%rsp),%rdi
@@ -281,9 +297,11 @@ $code.=<<___ if ($win64);
 ___
 $code.=<<___;
 	lea	8*17(%rsp),%rsp
+.cfi_adjust_cfa_offset	-8*17
 .Lepilogue_mul_2x2:
 	ret
 .Lend_mul_2x2:
+.cfi_endproc
 .size	bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2
 .asciz	"GF(2^m) Multiplication for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
 .align	16
diff --git a/crypto/bn/asm/x86_64-mont.pl b/crypto/bn/asm/x86_64-mont.pl
index 7b5e88547b..cf3daa2bb5 100755
--- a/crypto/bn/asm/x86_64-mont.pl
+++ b/crypto/bn/asm/x86_64-mont.pl
@@ -104,8 +104,10 @@ $code=<<___;
 .type	bn_mul_mont,\@function,6
 .align	16
 bn_mul_mont:
+.cfi_startproc
 	mov	${num}d,${num}d
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 	test	\$3,${num}d
 	jnz	.Lmul_enter
 	cmp	\$8,${num}d
@@ -124,11 +126,17 @@ $code.=<<___;
 .align	16
 .Lmul_enter:
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	neg	$num
 	mov	%rsp,%r11
@@ -161,6 +169,7 @@ $code.=<<___;
 .Lmul_page_walk_done:
 
 	mov	%rax,8(%rsp,$num,8)	# tp[num+1]=%rsp
+.cfi_cfa_expression	%rsp+8,$num,8,mul,plus,deref,+8
 .Lmul_body:
 	mov	$bp,%r12		# reassign $bp
 ___
@@ -331,16 +340,25 @@ $code.=<<___;
 	jnz	.Lcopy
 
 	mov	8(%rsp,$num,8),%rsi	# restore %rsp
+.cfi_def_cfa	%rsi,8
 	mov	\$1,%rax
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_epilogue:
 	ret
+.cfi_endproc
 .size	bn_mul_mont,.-bn_mul_mont
 ___
 {{{
@@ -350,8 +368,10 @@ $code.=<<___;
 .type	bn_mul4x_mont,\@function,6
 .align	16
 bn_mul4x_mont:
+.cfi_startproc
 	mov	${num}d,${num}d
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 .Lmul4x_enter:
 ___
 $code.=<<___ if ($addx);
@@ -361,11 +381,17 @@ $code.=<<___ if ($addx);
 ___
 $code.=<<___;
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 
 	neg	$num
 	mov	%rsp,%r11
@@ -389,6 +415,7 @@ $code.=<<___;
 .Lmul4x_page_walk_done:
 
 	mov	%rax,8(%rsp,$num,8)	# tp[num+1]=%rsp
+.cfi_cfa_expression	%rsp+8,$num,8,mul,plus,deref,+8
 .Lmul4x_body:
 	mov	$rp,16(%rsp,$num,8)	# tp[num+2]=$rp
 	mov	%rdx,%r12		# reassign $bp
@@ -767,16 +794,25 @@ ___
 }
 $code.=<<___;
 	mov	8(%rsp,$num,8),%rsi	# restore %rsp
+.cfi_def_cfa	%rsi, 8
 	mov	\$1,%rax
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lmul4x_epilogue:
 	ret
+.cfi_endproc
 .size	bn_mul4x_mont,.-bn_mul4x_mont
 ___
 }}}
@@ -804,14 +840,22 @@ $code.=<<___;
 .type	bn_sqr8x_mont,\@function,6
 .align	32
 bn_sqr8x_mont:
+.cfi_startproc
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 .Lsqr8x_enter:
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lsqr8x_prologue:
 
 	mov	${num}d,%r10d
@@ -867,6 +911,7 @@ bn_sqr8x_mont:
 
 	mov	$n0,  32(%rsp)
 	mov	%rax, 40(%rsp)		# save original %rsp
+.cfi_cfa_expression	%rsp+40,deref,+8
 .Lsqr8x_body:
 
 	movq	$nptr, %xmm2		# save pointer to modulus
@@ -936,6 +981,7 @@ $code.=<<___;
 	pxor	%xmm0,%xmm0
 	pshufd	\$0,%xmm1,%xmm1
 	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	jmp	.Lsqr8x_cond_copy
 
 .align	32
@@ -965,14 +1011,22 @@ $code.=<<___;
 
 	mov	\$1,%rax
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lsqr8x_epilogue:
 	ret
+.cfi_endproc
 .size	bn_sqr8x_mont,.-bn_sqr8x_mont
 ___
 }}}
@@ -984,14 +1038,22 @@ $code.=<<___;
 .type	bn_mulx4x_mont,\@function,6
 .align	32
 bn_mulx4x_mont:
+.cfi_startproc
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 .Lmulx4x_enter:
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lmulx4x_prologue:
 
 	shl	\$3,${num}d		# convert $num to bytes
@@ -1037,6 +1099,7 @@ bn_mulx4x_mont:
 	mov	$n0, 24(%rsp)		# save *n0
 	mov	$rp, 32(%rsp)		# save $rp
 	mov	%rax,40(%rsp)		# save original %rsp
+.cfi_cfa_expression	%rsp+40,deref,+8
 	mov	$num,48(%rsp)		# inner counter
 	jmp	.Lmulx4x_body
 
@@ -1286,6 +1349,7 @@ $code.=<<___;
 	pxor	%xmm0,%xmm0
 	pshufd	\$0,%xmm1,%xmm1
 	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	jmp	.Lmulx4x_cond_copy
 
 .align	32
@@ -1315,14 +1379,22 @@ $code.=<<___;
 
 	mov	\$1,%rax
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r15
 	mov	-32(%rsi),%r13
+.cfi_restore	%r15
 	mov	-24(%rsi),%r12
+.cfi_restore	%r15
 	mov	-16(%rsi),%rbp
+.cfi_restore	%r15
 	mov	-8(%rsi),%rbx
+.cfi_restore	%r15
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lmulx4x_epilogue:
 	ret
+.cfi_endproc
 .size	bn_mulx4x_mont,.-bn_mulx4x_mont
 ___
 }}}
diff --git a/crypto/bn/asm/x86_64-mont5.pl b/crypto/bn/asm/x86_64-mont5.pl
index 226f4360d6..1bf994286d 100755
--- a/crypto/bn/asm/x86_64-mont5.pl
+++ b/crypto/bn/asm/x86_64-mont5.pl
@@ -93,8 +93,10 @@ $code=<<___;
 .type	bn_mul_mont_gather5,\@function,6
 .align	64
 bn_mul_mont_gather5:
+.cfi_startproc
 	mov	${num}d,${num}d
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 	test	\$7,${num}d
 	jnz	.Lmul_enter
 ___
@@ -108,11 +110,17 @@ $code.=<<___;
 .Lmul_enter:
 	movd	`($win64?56:8)`(%rsp),%xmm5	# load 7th argument
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r14
 
 	neg	$num
 	mov	%rsp,%r11
@@ -145,6 +153,7 @@ $code.=<<___;
 
 	lea	.Linc(%rip),%r10
 	mov	%rax,8(%rsp,$num,8)	# tp[num+1]=%rsp
+.cfi_cfa_expression	%rsp+8,$num,8,mul,plus,deref,+8
 .Lmul_body:
 
 	lea	128($bp),%r12		# reassign $bp (+size optimization)
@@ -431,17 +440,26 @@ $code.=<<___;
 	jnz	.Lcopy
 
 	mov	8(%rsp,$num,8),%rsi	# restore %rsp
+.cfi_def_cfa	%rsi,8
 	mov	\$1,%rax
 
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r15
 	mov	-32(%rsi),%r13
+.cfi_restore	%r15
 	mov	-24(%rsi),%r12
+.cfi_restore	%r15
 	mov	-16(%rsi),%rbp
+.cfi_restore	%r15
 	mov	-8(%rsi),%rbx
+.cfi_restore	%r15
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lmul_epilogue:
 	ret
+.cfi_endproc
 .size	bn_mul_mont_gather5,.-bn_mul_mont_gather5
 ___
 {{{
@@ -451,8 +469,10 @@ $code.=<<___;
 .type	bn_mul4x_mont_gather5,\@function,6
 .align	32
 bn_mul4x_mont_gather5:
+.cfi_startproc
 	.byte	0x67
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 .Lmul4x_enter:
 ___
 $code.=<<___ if ($addx);
@@ -462,11 +482,17 @@ $code.=<<___ if ($addx);
 ___
 $code.=<<___;
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lmul4x_prologue:
 
 	.byte	0x67
@@ -522,22 +548,32 @@ $code.=<<___;
 	neg	$num
 
 	mov	%rax,40(%rsp)
+.cfi_cfa_expression	%rsp+40,deref,+8
 .Lmul4x_body:
 
 	call	mul4x_internal
 
 	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	mov	\$1,%rax
 
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lmul4x_epilogue:
 	ret
+.cfi_endproc
 .size	bn_mul4x_mont_gather5,.-bn_mul4x_mont_gather5
 
 .type	mul4x_internal,\@abi-omnipotent
@@ -1061,7 +1097,9 @@ $code.=<<___;
 .type	bn_power5,\@function,6
 .align	32
 bn_power5:
+.cfi_startproc
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 ___
 $code.=<<___ if ($addx);
 	mov	OPENSSL_ia32cap_P+8(%rip),%r11d
@@ -1071,11 +1109,17 @@ $code.=<<___ if ($addx);
 ___
 $code.=<<___;
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lpower5_prologue:
 
 	shl	\$3,${num}d		# convert $num to bytes
@@ -1140,6 +1184,7 @@ $code.=<<___;
 	#
 	mov	$n0,  32(%rsp)
 	mov	%rax, 40(%rsp)		# save original %rsp
+.cfi_cfa_expression	%rsp+40,deref,+8
 .Lpower5_body:
 	movq	$rptr,%xmm1		# save $rptr, used in sqr8x
 	movq	$nptr,%xmm2		# save $nptr
@@ -1166,16 +1211,25 @@ $code.=<<___;
 	call	mul4x_internal
 
 	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	mov	\$1,%rax
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lpower5_epilogue:
 	ret
+.cfi_endproc
 .size	bn_power5,.-bn_power5
 
 .globl	bn_sqr8x_internal
@@ -2055,14 +2109,22 @@ bn_from_montgomery:
 .type	bn_from_mont8x,\@function,6
 .align	32
 bn_from_mont8x:
+.cfi_startproc
 	.byte	0x67
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lfrom_prologue:
 
 	shl	\$3,${num}d		# convert $num to bytes
@@ -2127,6 +2189,7 @@ bn_from_mont8x:
 	#
 	mov	$n0,  32(%rsp)
 	mov	%rax, 40(%rsp)		# save original %rsp
+.cfi_cfa_expression	%rsp+40,deref,+8
 .Lfrom_body:
 	mov	$num,%r11
 	lea	48(%rsp),%rax
@@ -2170,7 +2233,6 @@ $code.=<<___ if ($addx);
 
 	pxor	%xmm0,%xmm0
 	lea	48(%rsp),%rax
-	mov	40(%rsp),%rsi		# restore %rsp
 	jmp	.Lfrom_mont_zero
 
 .align	32
@@ -2182,11 +2244,12 @@ $code.=<<___;
 
 	pxor	%xmm0,%xmm0
 	lea	48(%rsp),%rax
-	mov	40(%rsp),%rsi		# restore %rsp
 	jmp	.Lfrom_mont_zero
 
 .align	32
 .Lfrom_mont_zero:
+	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	movdqa	%xmm0,16*0(%rax)
 	movdqa	%xmm0,16*1(%rax)
 	movdqa	%xmm0,16*2(%rax)
@@ -2197,14 +2260,22 @@ $code.=<<___;
 
 	mov	\$1,%rax
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lfrom_epilogue:
 	ret
+.cfi_endproc
 .size	bn_from_mont8x,.-bn_from_mont8x
 ___
 }
@@ -2217,14 +2288,22 @@ $code.=<<___;
 .type	bn_mulx4x_mont_gather5,\@function,6
 .align	32
 bn_mulx4x_mont_gather5:
+.cfi_startproc
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 .Lmulx4x_enter:
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lmulx4x_prologue:
 
 	shl	\$3,${num}d		# convert $num to bytes
@@ -2290,21 +2369,31 @@ bn_mulx4x_mont_gather5:
 	#
 	mov	$n0, 32(%rsp)		# save *n0
 	mov	%rax,40(%rsp)		# save original %rsp
+.cfi_cfa_expression	%rsp+40,deref,+8
 .Lmulx4x_body:
 	call	mulx4x_internal
 
 	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	mov	\$1,%rax
 
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lmulx4x_epilogue:
 	ret
+.cfi_endproc
 .size	bn_mulx4x_mont_gather5,.-bn_mulx4x_mont_gather5
 
 .type	mulx4x_internal,\@abi-omnipotent
@@ -2682,14 +2771,22 @@ $code.=<<___;
 .type	bn_powerx5,\@function,6
 .align	32
 bn_powerx5:
+.cfi_startproc
 	mov	%rsp,%rax
+.cfi_def_cfa_register	%rax
 .Lpowerx5_enter:
 	push	%rbx
+.cfi_push	%rbx
 	push	%rbp
+.cfi_push	%rbp
 	push	%r12
+.cfi_push	%r12
 	push	%r13
+.cfi_push	%r13
 	push	%r14
+.cfi_push	%r14
 	push	%r15
+.cfi_push	%r15
 .Lpowerx5_prologue:
 
 	shl	\$3,${num}d		# convert $num to bytes
@@ -2761,6 +2858,7 @@ bn_powerx5:
 	movq	$bptr,%xmm4
 	mov	$n0,  32(%rsp)
 	mov	%rax, 40(%rsp)		# save original %rsp
+.cfi_cfa_expression	%rsp+40,deref,+8
 .Lpowerx5_body:
 
 	call	__bn_sqrx8x_internal
@@ -2783,17 +2881,26 @@ bn_powerx5:
 	call	mulx4x_internal
 
 	mov	40(%rsp),%rsi		# restore %rsp
+.cfi_def_cfa	%rsi,8
 	mov	\$1,%rax
 
 	mov	-48(%rsi),%r15
+.cfi_restore	%r15
 	mov	-40(%rsi),%r14
+.cfi_restore	%r14
 	mov	-32(%rsi),%r13
+.cfi_restore	%r13
 	mov	-24(%rsi),%r12
+.cfi_restore	%r12
 	mov	-16(%rsi),%rbp
+.cfi_restore	%rbp
 	mov	-8(%rsi),%rbx
+.cfi_restore	%rbx
 	lea	(%rsi),%rsp
+.cfi_def_cfa_register	%rsp
 .Lpowerx5_epilogue:
 	ret
+.cfi_endproc
 .size	bn_powerx5,.-bn_powerx5
 
 .globl	bn_sqrx8x_internal
-- 
2.25.1