From 1cb35b47db8462f5653803501ed68d33b10c249f Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Fri, 10 Feb 2017 10:59:45 +0100
Subject: [PATCH] perlasm/x86_64-xlate.pl: recognize even offset(%reg) in
 cfa_expression.

This is handy when "offset(%reg)" is a perl variable.

Reviewed-by: Rich Salz <rsalz@openssl.org>
---
 crypto/perlasm/x86_64-xlate.pl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
index 2013043a01..1edea05743 100755
--- a/crypto/perlasm/x86_64-xlate.pl
+++ b/crypto/perlasm/x86_64-xlate.pl
@@ -610,6 +610,8 @@ my %globals;
 	foreach my $token (split(/,\s*/,$line)) {
 	    if ($token =~ /^%r/) {
 		push @ret,reg($token);
+	    } elsif ($token =~ /((?:0x)?[0-9a-f]+)\((%r\w+)\)/) {
+		push @ret,reg("$2+$1");
 	    } elsif ($token =~ /(\w+):(\-?(?:0x)?[0-9a-f]+)(U?)/i) {
 		my $i = 1*eval($2);
 		push @ret,$DW_OP_complex{$1}, ($3 ? uleb128($i) : sleb128($i));