--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6942326/Test.java Sat Feb 26 12:10:54 2011 -0800
@@ -0,0 +1,409 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/**
+ * @test
+ * @bug 6942326
+ * @summary x86 code in string_indexof() could read beyond reserved heap space
+ *
+ * @run main/othervm/timeout=300 -Xmx32m -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:CompileCommand=exclude,Test,main -XX:CompileCommand=exclude,Test,test_varsub_indexof -XX:CompileCommand=exclude,Test,test_varstr_indexof -XX:CompileCommand=exclude,Test,test_missub_indexof -XX:CompileCommand=exclude,Test,test_consub_indexof -XX:CompileCommand=exclude,Test,test_conmis_indexof -XX:CompileCommand=exclude,Test,test_subcon Test
+ *
+ */
+
+public class Test {
+
+ static String[] strings = new String[1024];
+ private static final int ITERATIONS = 100000;
+
+ public static void main(String[] args) {
+
+ long start_total = System.currentTimeMillis();
+
+ // search variable size substring in string (33 chars).
+ String a = " 1111111111111xx1111111111111xx11y"; // +1 to execute a.substring(1) first
+ String b = "1111111111111xx1111111111111xx11y";
+ test_varsub_indexof(a, b);
+
+ // search variable size substring in string (32 chars).
+ a = " 1111111111111xx1111111111111xx1y";
+ b = "1111111111111xx1111111111111xx1y";
+ test_varsub_indexof(a, b);
+
+ // search variable size substring in string (17 chars).
+ a = " 1111111111111xx1y";
+ b = "1111111111111xx1y";
+ test_varsub_indexof(a, b);
+
+ // search variable size substring in string (16 chars).
+ a = " 111111111111xx1y";
+ b = "111111111111xx1y";
+ test_varsub_indexof(a, b);
+
+ // search variable size substring in string (8 chars).
+ a = " 1111xx1y";
+ b = "1111xx1y";
+ test_varsub_indexof(a, b);
+
+ // search variable size substring in string (7 chars).
+ a = " 111xx1y";
+ b = "111xx1y";
+ test_varsub_indexof(a, b);
+
+
+
+ // search substring (17 chars) in variable size string.
+ a = "1111111111111xx1x";
+ b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
+ test_varstr_indexof(a, b);
+
+ // search substring (16 chars) in variable size string.
+ a = "111111111111xx1x";
+ b = " 1111111111111xx1111111111111xx1x";
+ test_varstr_indexof(a, b);
+
+ // search substring (9 chars) in variable size string.
+ a = "11111xx1x";
+ b = " 1111111111111xx1111111111111xx1x";
+ test_varstr_indexof(a, b);
+
+ // search substring (8 chars) in variable size string.
+ a = "1111xx1x";
+ b = " 1111111111111xx1111111111111xx1x";
+ test_varstr_indexof(a, b);
+
+ // search substring (4 chars) in variable size string.
+ a = "xx1x";
+ b = " 1111111111111xx1111111111111xx1x";
+ test_varstr_indexof(a, b);
+
+ // search substring (3 chars) in variable size string.
+ a = "x1x";
+ b = " 1111111111111xx1111111111111xx1x";
+ test_varstr_indexof(a, b);
+
+ // search substring (2 chars) in variable size string.
+ a = "1y";
+ b = " 1111111111111xx1111111111111xx1y";
+ test_varstr_indexof(a, b);
+
+
+
+ // search non matching variable size substring in string (33 chars).
+ a = " 1111111111111xx1111111111111xx11z"; // +1 to execute a.substring(1) first
+ b = "1111111111111xx1111111111111xx11y";
+ test_missub_indexof(a, b);
+
+ // search non matching variable size substring in string (32 chars).
+ a = " 1111111111111xx1111111111111xx1z";
+ b = "1111111111111xx1111111111111xx1y";
+ test_missub_indexof(a, b);
+
+ // search non matching variable size substring in string (17 chars).
+ a = " 1111111111111xx1z";
+ b = "1111111111111xx1y";
+ test_missub_indexof(a, b);
+
+ // search non matching variable size substring in string (16 chars).
+ a = " 111111111111xx1z";
+ b = "111111111111xx1y";
+ test_missub_indexof(a, b);
+
+ // search non matching variable size substring in string (8 chars).
+ a = " 1111xx1z";
+ b = "1111xx1y";
+ test_missub_indexof(a, b);
+
+ // search non matching variable size substring in string (7 chars).
+ a = " 111xx1z";
+ b = "111xx1y";
+ test_missub_indexof(a, b);
+
+
+
+ // Testing constant substring search in variable size string.
+
+ // search constant substring (17 chars).
+ b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
+ TestCon tc = new TestCon17();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (16 chars).
+ b = " 1111111111111xx1111111111111xx1x";
+ tc = new TestCon16();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (9 chars).
+ b = " 1111111111111xx1111111111111xx1x";
+ tc = new TestCon9();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (8 chars).
+ b = " 1111111111111xx1111111111111xx1x";
+ tc = new TestCon8();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (4 chars).
+ b = " 1111111111111xx1111111111111xx1x";
+ tc = new TestCon4();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (3 chars).
+ b = " 1111111111111xx1111111111111xx1x";
+ tc = new TestCon3();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (2 chars).
+ b = " 1111111111111xx1111111111111xx1y";
+ tc = new TestCon2();
+ test_consub_indexof(tc, b);
+
+ // search constant substring (1 chars).
+ b = " 1111111111111xx1111111111111xx1y";
+ tc = new TestCon1();
+ test_consub_indexof(tc, b);
+
+
+ // search non matching constant substring (17 chars).
+ b = " 1111111111111xx1111111111111xx1z"; // +1 to execute b.substring(1) first
+ tc = new TestCon17();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (16 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon16();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (9 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon9();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (8 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon8();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (4 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon4();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (3 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon3();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (2 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon2();
+ test_conmis_indexof(tc, b);
+
+ // search non matching constant substring (1 chars).
+ b = " 1111111111111xx1111111111111xx1z";
+ tc = new TestCon1();
+ test_conmis_indexof(tc, b);
+
+ long end_total = System.currentTimeMillis();
+ System.out.println("End run time: " + (end_total - start_total));
+
+ }
+
+ public static long test_init(String a, String b) {
+ for (int i = 0; i < 512; i++) {
+ strings[i * 2] = new String(b.toCharArray());
+ strings[i * 2 + 1] = new String(a.toCharArray());
+ }
+ System.out.print(a.length() + " " + b.length() + " ");
+ return System.currentTimeMillis();
+ }
+
+ public static void test_end(String a, String b, int v, int expected, long start) {
+ long end = System.currentTimeMillis();
+ int res = (v/ITERATIONS);
+ System.out.print(" " + res);
+ System.out.println(" time:" + (end - start));
+ if (res != expected) {
+ System.out.println("wrong indexOf result: " + res + ", expected " + expected);
+ System.out.println("\"" + b + "\".indexOf(\"" + a + "\")");
+ System.exit(97);
+ }
+ }
+
+ public static int test_subvar() {
+ int s = 0;
+ int v = 0;
+ for (int i = 0; i < ITERATIONS; i++) {
+ v += strings[s].indexOf(strings[s + 1]);
+ s += 2;
+ if (s >= strings.length) s = 0;
+ }
+ return v;
+ }
+
+ public static void test_varsub_indexof(String a, String b) {
+ System.out.println("Start search variable size substring in string (" + b.length() + " chars)");
+ long start_it = System.currentTimeMillis();
+ int limit = 1; // last a.length() == 1
+ while (a.length() > limit) {
+ a = a.substring(1);
+ long start = test_init(a, b);
+ int v = test_subvar();
+ test_end(a, b, v, (b.length() - a.length()), start);
+ }
+ long end_it = System.currentTimeMillis();
+ System.out.println("End search variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
+ }
+
+ public static void test_varstr_indexof(String a, String b) {
+ System.out.println("Start search substring (" + a.length() + " chars) in variable size string");
+ long start_it = System.currentTimeMillis();
+ int limit = a.length();
+ while (b.length() > limit) {
+ b = b.substring(1);
+ long start = test_init(a, b);
+ int v = test_subvar();
+ test_end(a, b, v, (b.length() - a.length()), start);
+ }
+ long end_it = System.currentTimeMillis();
+ System.out.println("End search substring (" + a.length() + " chars) in variable size string, time: " + (end_it - start_it));
+ }
+
+ public static void test_missub_indexof(String a, String b) {
+ System.out.println("Start search non matching variable size substring in string (" + b.length() + " chars)");
+ long start_it = System.currentTimeMillis();
+ int limit = 1; // last a.length() == 1
+ while (a.length() > limit) {
+ a = a.substring(1);
+ long start = test_init(a, b);
+ int v = test_subvar();
+ test_end(a, b, v, (-1), start);
+ }
+ long end_it = System.currentTimeMillis();
+ System.out.println("End search non matching variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
+ }
+
+
+
+ public static void test_consub_indexof(TestCon tc, String b) {
+ System.out.println("Start search constant substring (" + tc.constr().length() + " chars)");
+ long start_it = System.currentTimeMillis();
+ int limit = tc.constr().length();
+ while (b.length() > limit) {
+ b = b.substring(1);
+ long start = test_init(tc.constr(), b);
+ int v = test_subcon(tc);
+ test_end(tc.constr(), b, v, (b.length() - tc.constr().length()), start);
+ }
+ long end_it = System.currentTimeMillis();
+ System.out.println("End search constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
+ }
+
+ public static void test_conmis_indexof(TestCon tc, String b) {
+ System.out.println("Start search non matching constant substring (" + tc.constr().length() + " chars)");
+ long start_it = System.currentTimeMillis();
+ int limit = tc.constr().length();
+ while (b.length() > limit) {
+ b = b.substring(1);
+ long start = test_init(tc.constr(), b);
+ int v = test_subcon(tc);
+ test_end(tc.constr(), b, v, (-1), start);
+ }
+ long end_it = System.currentTimeMillis();
+ System.out.println("End search non matching constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
+ }
+
+ public static int test_subcon(TestCon tc) {
+ int s = 0;
+ int v = 0;
+ for (int i = 0; i < ITERATIONS; i++) {
+ v += tc.indexOf(strings[s]);
+ s += 2;
+ if (s >= strings.length) s = 0;
+ }
+ return v;
+ }
+
+ private interface TestCon {
+ public String constr();
+ public int indexOf(String str);
+ }
+
+ // search constant substring (17 chars).
+ private final static class TestCon17 implements TestCon {
+ private static final String constr = "1111111111111xx1x";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+ // search constant substring (16 chars).
+ private final static class TestCon16 implements TestCon {
+ private static final String constr = "111111111111xx1x";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+ // search constant substring (9 chars).
+ private final static class TestCon9 implements TestCon {
+ private static final String constr = "11111xx1x";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+ // search constant substring (8 chars).
+ private final static class TestCon8 implements TestCon {
+ private static final String constr = "1111xx1x";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+ // search constant substring (4 chars).
+ private final static class TestCon4 implements TestCon {
+ private static final String constr = "xx1x";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+ // search constant substring (3 chars).
+ private final static class TestCon3 implements TestCon {
+ private static final String constr = "x1x";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+ // search constant substring (2 chars).
+ private final static class TestCon2 implements TestCon {
+ private static final String constr = "1y";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+
+
+ // search constant substring (1 chars).
+ private final static class TestCon1 implements TestCon {
+ private static final String constr = "y";
+ public String constr() { return constr; }
+ public int indexOf(String str) { return str.indexOf(constr); }
+ }
+}
+