Mercurial > hg > graal-compiler
diff test/compiler/6942326/Test.java @ 2320:41d4973cf100
6942326: x86 code in string_indexof() could read beyond reserved heap space
Summary: copy small (<8) strings on stack if str+16 crosses a page boundary and load from stack into XMM. Back up pointer when loading string's tail.
Reviewed-by: never
author | kvn |
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date | Sat, 26 Feb 2011 12:10:54 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/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); } + } +} +