whrlpool/asm/wp-x86_64.pl: add CFI annotations.

Reviewed-by: NRich Salz <rsalz@openssl.org>

crypto/whrlpool/asm/wp-x86_64.pl

@@ -66,13 +66,21 @@ $code=<<___;
 .type	$func,\@function,3
 .align	16
 $func:
+.cfi_startproc
 	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
 
 	sub	\$128+40,%rsp
 	and	\$-64,%rsp
@@ -82,6 +90,7 @@ $func:
 	mov	%rsi,8(%r10)
 	mov	%rdx,16(%r10)
 	mov	%rax,32(%r10)		# saved stack pointer
+.cfi_cfa_expression	%rsp+`128+32`,deref,+8
 .Lprologue:
 
 	mov	%r10,%rbx
@@ -205,15 +214,24 @@ $code.=<<___;
 	jmp	.Louterloop
 .Lalldone:
 	mov	32(%rbx),%rsi		# restore saved pointer
+.cfi_def_cfa	%rsi,8
 	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
 .Lepilogue:
 	ret
+.cfi_endproc
 .size	$func,.-$func
 
 .align	64