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From 34ab13b7d8e3e723adb60be8142e38b7c9cd382a Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Sun, 5 May 2019 18:25:50 +0200
Subject: [PATCH] crypto/perlasm/ppc-xlate.pl: add linux64v2 flavour
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is a big endian ELFv2 configuration. ELFv2 was already being
used for little endian, and big endian was traditionally ELFv1
but there are practical configurations that use ELFv2 with big
endian nowadays (Adélie Linux, Void Linux, possibly Gentoo, etc.)

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8883)
---
 crypto/perlasm/ppc-xlate.pl | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/crypto/perlasm/ppc-xlate.pl b/crypto/perlasm/ppc-xlate.pl
index e52f2f6ea62..5fcd0526dff 100755
--- a/crypto/perlasm/ppc-xlate.pl
+++ b/crypto/perlasm/ppc-xlate.pl
@@ -49,7 +49,7 @@
 	/osx/		&& do { $name = "_$name";
 				last;
 			      };
-	/linux.*(32|64le)/
+	/linux.*(32|64(le|v2))/
 			&& do {	$ret .= ".globl	$name";
 				if (!$$type) {
 				    $ret .= "\n.type	$name,\@function";
@@ -80,7 +80,7 @@
 };
 my $text = sub {
     my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
-    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64le/);
+    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64(le|v2)/);
     $ret;
 };
 my $machine = sub {
@@ -186,7 +186,7 @@
 
 # Some ABIs specify vrsave, special-purpose register #256, as reserved
 # for system use.
-my $no_vrsave = ($flavour =~ /aix|linux64le/);
+my $no_vrsave = ($flavour =~ /aix|linux64(le|v2)/);
 my $mtspr = sub {
     my ($f,$idx,$ra) = @_;
     if ($idx == 256 && $no_vrsave) {
@@ -318,7 +318,7 @@ sub vfour {
 	if ($label) {
 	    my $xlated = ($GLOBALS{$label} or $label);
 	    print "$xlated:";
-	    if ($flavour =~ /linux.*64le/) {
+	    if ($flavour =~ /linux.*64(le|v2)/) {
 		if ($TYPES{$label} =~ /function/) {
 		    printf "\n.localentry	%s,0\n",$xlated;
 		}

From 098404128383ded87ba390dd74ecd9e2ffa6f530 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Sun, 5 May 2019 18:30:55 +0200
Subject: [PATCH] Configure: use ELFv2 ABI on some ppc64 big endian systems

If _CALL_ELF is defined to be 2, it's an ELFv2 system.
Conditionally switch to the v2 perlasm scheme.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8883)
---
 Configure | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Configure b/Configure
index 22082deb4c7..e303d98deb3 100755
--- a/Configure
+++ b/Configure
@@ -1402,8 +1402,15 @@
 my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
 my %predefined_CXX = $config{CXX}
     ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
     : ();
 
+unless ($disabled{asm}) {
+    # big endian systems can use ELFv2 ABI
+    if ($target eq "linux-ppc64") {
+        $target{perlasm_scheme} = "linux64v2" if ($predefined_C{_CALL_ELF} == 2);
+    }
+}
+
 # Check for makedepend capabilities.
 if (!$disabled{makedepend}) {
     if ($config{target} =~ /^(VC|vms)-/) {