| /* |
| * Copyright (c) 2017, 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. |
| */ |
| |
| |
| package org.graalvm.compiler.hotspot.test; |
| |
| import static org.graalvm.compiler.test.SubprocessUtil.getVMCommandLine; |
| import static org.graalvm.compiler.test.SubprocessUtil.withoutDebuggerArguments; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.lang.reflect.Field; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.graalvm.compiler.api.directives.GraalDirectives; |
| import org.graalvm.compiler.core.test.GraalCompilerTest; |
| import org.graalvm.compiler.test.SubprocessUtil; |
| import org.graalvm.compiler.test.SubprocessUtil.Subprocess; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import sun.misc.Unsafe; |
| |
| /** |
| * Tests that a hs_err crash log contains expected content. |
| */ |
| public class HsErrLogTest extends GraalCompilerTest { |
| |
| @Test |
| public void test1() throws IOException, InterruptedException { |
| List<String> args = new ArrayList<>(); |
| if (Java8OrEarlier) { |
| args.add("-XX:-UseJVMCIClassLoader"); |
| } |
| args.add("-XX:+UseJVMCICompiler"); |
| args.add("-XX:CompileOnly=" + Crasher.class.getName() + "::tryCrash"); |
| args.add(Crasher.class.getName()); |
| testHelper(args); |
| } |
| |
| private static final boolean VERBOSE = Boolean.getBoolean(HsErrLogTest.class.getSimpleName() + ".verbose"); |
| |
| private static void testHelper(List<String> extraVmArgs, String... mainClassAndArgs) throws IOException, InterruptedException { |
| List<String> vmArgs = withoutDebuggerArguments(getVMCommandLine()); |
| vmArgs.removeIf(a -> a.startsWith("-Dgraal.")); |
| vmArgs.remove("-esa"); |
| vmArgs.remove("-ea"); |
| vmArgs.addAll(extraVmArgs); |
| |
| Subprocess proc = SubprocessUtil.java(vmArgs, mainClassAndArgs); |
| if (VERBOSE) { |
| System.out.println(proc); |
| } |
| |
| Pattern re = Pattern.compile("# +(.*hs_err_pid[\\d]+\\.log)"); |
| |
| for (String line : proc.output) { |
| Matcher m = re.matcher(line); |
| if (m.matches()) { |
| File path = new File(m.group(1)); |
| Assert.assertTrue(path.toString(), path.exists()); |
| checkHsErr(path); |
| return; |
| } |
| } |
| |
| Assert.fail("Could not find " + re.pattern()); |
| } |
| |
| private static void checkHsErr(File hsErrPath) { |
| try (BufferedReader br = new BufferedReader(new FileReader(hsErrPath))) { |
| String line = br.readLine(); |
| String sig = Crasher.class.getName() + ".tryCrash(JI)I"; |
| List<String> lines = new ArrayList<>(); |
| while (line != null) { |
| if (line.contains(sig)) { |
| if (!VERBOSE) { |
| hsErrPath.delete(); |
| } |
| return; |
| } |
| lines.add(line); |
| line = br.readLine(); |
| } |
| throw new AssertionError("Could not find line containing \"" + sig + "\" in " + hsErrPath + |
| ":" + System.lineSeparator() + String.join(System.lineSeparator(), lines)); |
| } catch (IOException e) { |
| throw new AssertionError(e); |
| } |
| } |
| } |
| |
| class Crasher { |
| public static void main(String[] args) { |
| int iter = 0; |
| long mem = UNSAFE.allocateMemory(1000); |
| while (iter < Integer.MAX_VALUE) { |
| tryCrash(mem, iter); |
| iter++; |
| } |
| } |
| |
| protected static int tryCrash(long mem, int iter) { |
| if (GraalDirectives.inCompiledCode()) { |
| UNSAFE.putInt(0, iter); |
| return 0; |
| } else { |
| UNSAFE.putInt(mem, iter); |
| return UNSAFE.getInt(mem); |
| } |
| } |
| |
| static final Unsafe UNSAFE = initUnsafe(); |
| |
| private static Unsafe initUnsafe() { |
| try { |
| // Fast path when we are trusted. |
| return Unsafe.getUnsafe(); |
| } catch (SecurityException se) { |
| // Slow path when we are not trusted. |
| try { |
| Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe"); |
| theUnsafe.setAccessible(true); |
| return (Unsafe) theUnsafe.get(Unsafe.class); |
| } catch (Exception e) { |
| throw new RuntimeException("exception while trying to get Unsafe", e); |
| } |
| } |
| } |
| } |