test: Add tests for ldpath

Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
Reviewed-by: Kris Van Hees <kris.van.hees@oracle.com>

test/unittest/options/err.D_PRAGMA_OPTSET.ldpath.d

@@ -0,0 +1,19 @@
+/*
+ * Oracle Linux DTrace.
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * Licensed under the Universal Permissive License v 1.0 as shown at
+ * http://oss.oracle.com/licenses/upl.
+ */
+
+/*
+ * ASSERTION: Option ldpath cannot be used from within a D program.
+ *
+ * SECTION: Options and Tunables/Consumer Options
+ */
+
+#pragma D option ldpath=/nonexistent/directory
+
+BEGIN
+{
+	exit(0);
+}

test/unittest/options/err.D_PRAGMA_OPTSET.ldpath.r

@@ -0,0 +1,2 @@
+-- @@stderr --
+dtrace: failed to compile script test/unittest/options/err.D_PRAGMA_OPTSET.ldpath.d: [D_PRAGMA_OPTSET] line 14: failed to set option 'ldpath' to '/nonexistent/directory': Option cannot be used from within a D program

test/unittest/options/err.ldpath.d

@@ -0,0 +1,19 @@
+/*
+ * Oracle Linux DTrace.
+ * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * Licensed under the Universal Permissive License v 1.0 as shown at
+ * http://oss.oracle.com/licenses/upl.
+ */
+
+/*
+ * ASSERTION: The ldpath option changes the ld path.
+ *
+ * SECTION: Options and Tunables/Consumer Options
+ */
+
+/* @@runtest-opts: -G -xldpath=/nonexistent/ld */
+
+BEGIN
+{
+	exit(0);
+}

test/unittest/options/err.ldpath.r

@@ -0,0 +1,3 @@
+-- @@stderr --
+sh: /nonexistent/ld: No such file or directory
+dtrace: failed to link script test/unittest/options/err.ldpath: failed to link err.ldpath.o: /nonexistent/ld exited with status 127

test/unittest/options/err.ldpath.r.p

@@ -0,0 +1,10 @@
+#!/usr/bin/gawk -f
+
+/: \/nonexistent\/ld:/ {
+	print "sh: /nonexistent/ld: No such file or directory";
+	next;
+}
+
+{
+	print;
+}

test/unittest/options/tst.ldpath.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+#
+# Oracle Linux DTrace.
+# Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+# Licensed under the Universal Permissive License v 1.0 as shown at
+# http://oss.oracle.com/licenses/upl.
+#
+
+dtrace=$1
+
+DIRNAME="$tmpdir/ldpath.$$.$RANDOM"
+mkdir -p $DIRNAME
+cd $DIRNAME
+
+# ldpath=ld does nothing remarkable, but this test complements err.ldpath.d
+$dtrace $dt_flags -G -xldpath=ld -n 'BEGIN {exit(0)}'
+exit $?