From: Andy Polyakov <appro@openssl.org>
Date: Sun, 12 Jun 2016 14:21:37 +0000 (+0200)
Subject: perlasm/x86*.pl: add endbranch instruction.
X-Git-Tag: OpenSSL_1_1_0-pre6~437
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=4e3d2866b6e8e7a700ea22e05840a093bfd7a4b1;p=oweals%2Fopenssl.git

perlasm/x86*.pl: add endbranch instruction.

For further information see "Control-flow Enforcement Technology
Preview" by Intel.

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

diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
index 391362d46e..885690507e 100755
--- a/crypto/perlasm/x86_64-xlate.pl
+++ b/crypto/perlasm/x86_64-xlate.pl
@@ -864,6 +864,10 @@ my $vprotq = sub {
     }
 };
 
+my $endbranch = sub {
+    (0xf3,0x0f,0x1e,0xfa);
+};
+
 if ($nasm) {
     print <<___;
 default	rel
diff --git a/crypto/perlasm/x86asm.pl b/crypto/perlasm/x86asm.pl
index 4590adee2f..1ff46c92cc 100644
--- a/crypto/perlasm/x86asm.pl
+++ b/crypto/perlasm/x86asm.pl
@@ -172,6 +172,11 @@ sub ::vprotd
     {	&::generic("vprotd",@_);	}
 }
 
+sub ::endbranch
+{
+    &::data_byte(0xf3,0x0f,0x1e,0xfb);
+}
+
 # label management
 $lbdecor="L";		# local label decoration, set by package
 $label="000";