1 files changed, 62 insertions, 0 deletions
diff --git a/gold/testsuite/weak_as_needed.sh b/gold/testsuite/weak_as_needed.sh
new file mode 100755
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+++ b/gold/testsuite/weak_as_needed.sh
@@ -0,0 +1,62 @@
+#!/bin/sh
+
+# weak_as_needed.sh -- a test case for version handling with weak symbols
+# and --as-needed libraries.
+
+# Copyright (C) 2018 Free Software Foundation, Inc.
+# Written by Cary Coutant <ccoutant@gmail.com>.
+
+# This file is part of gold.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+# This test verifies that a weak reference is properly bound to
+# an as-needed library, when it is first resolved to a symbol in
+# a library that ends up being not needed.
+
+# Ref: https://stackoverflow.com/questions/50751421/undefined-behavior-in-shared-lib-using-libpthread-but-not-having-it-in-elf-as-d
+
+check()
+{
+    if ! grep -q "$2" "$1"
+    then
+	echo "Did not find expected output in $1:"
+	echo "   $2"
+	echo ""
+	echo "Actual output below:"
+	cat "$1"
+	exit 1
+    fi
+}
+
+check_missing()
+{
+    if grep -q "$2" "$1"
+    then
+	echo "Found unexpected output in $1:"
+	echo "   $2"
+	echo ""
+	echo "Actual output below:"
+	cat "$1"
+	exit 1
+    fi
+}
+
+check weak_as_needed.stdout "WEAK .* UND  *bar@v2"
+check weak_as_needed.stdout "NEEDED.*weak_as_needed_c\.so"
+check_missing weak_as_needed.stdout "NEEDED.*weak_as_needed_b\.so"
+
+exit 0