Mercurial > hg > graal-compiler
view graal/com.oracle.graal.test/src/com/oracle/graal/test/SubprocessUtil.java @ 23072:97efbbecbc16
Deoptimization inserted for new instance of skipped exception type should invalidate.
author | Andreas Woess <andreas.woess@oracle.com> |
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date | Tue, 24 Nov 2015 13:42:35 +0100 |
parents | 7ffade01e1ff |
children |
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/* * Copyright (c) 2015, 2015, 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 com.oracle.graal.test; import java.io.File; import java.io.IOException; import java.nio.file.Files; import java.util.List; /** * Utility methods for spawning a VM in a subprocess during unit tests. */ public final class SubprocessUtil { private SubprocessUtil() { } /** * Gets the command line for the current process. * * @return the command line arguments for the current process or {@code null} if they are not * available */ public static List<String> getProcessCommandLine() { String processArgsFile = System.getenv().get("MX_SUBPROCESS_COMMAND_FILE"); if (processArgsFile != null) { try { return Files.readAllLines(new File(processArgsFile).toPath()); } catch (IOException e) { } } return null; } /** * Gets the command line used to start the current Java VM, including all VM arguments, but not * including the main class or any Java arguments. This can be used to spawn an identical VM, * but running different Java code. */ public static List<String> getVMCommandLine() { List<String> args = getProcessCommandLine(); if (args == null) { return null; } else { int index = findMainClassIndex(args); return args.subList(0, index); } } private static int findMainClassIndex(List<String> commandLine) { int i = 1; // Skip the java executable while (i < commandLine.size()) { String s = commandLine.get(i); if (s.charAt(0) != '-') { return i; } else if (s.equals("-cp") || s.equals("-classpath")) { i += 2; } else { i++; } } throw new InternalError(); } }