Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/jdi/SAPIDAttachingConnector.java @ 4670:41034914e2ee
add MethodContents assumption to fix debbugging issue
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 22 Feb 2012 17:04:27 +0100 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2002, 2004, 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 sun.jvm.hotspot.jdi; import com.sun.jdi.connect.*; import com.sun.jdi.Bootstrap; import com.sun.jdi.VirtualMachine; import com.sun.jdi.VirtualMachineManager; import java.io.*; import java.lang.reflect.*; import java.net.*; import java.util.*; public class SAPIDAttachingConnector extends ConnectorImpl implements AttachingConnector { static final String ARG_PID = "pid"; private Transport transport; public SAPIDAttachingConnector(com.sun.tools.jdi.VirtualMachineManagerService ignored) { this(); } public SAPIDAttachingConnector() { super(); // fixme jjh: create resources for the these strings, addStringArgument( ARG_PID, "PID", //getString("sa.pid.label"), "PID of a Java process", //getString("sa.pid.description"); "", true); transport = new Transport() { public String name() { return "local process"; } }; } // security check to see whether the caller can perform attach private void checkProcessAttach(int pid) { SecurityManager sm = System.getSecurityManager(); if (sm != null) { String os = System.getProperty("os.name"); try { // Whether the caller can perform link against SA native library? checkNativeLink(sm, os); if (os.equals("SunOS") || os.equals("Linux")) { // Whether the caller can read /proc/<pid> file? sm.checkRead("/proc/" + pid); } } catch (SecurityException se) { throw new SecurityException("permission denied to attach to " + pid); } } } private VirtualMachine createVirtualMachine(Class virtualMachineImplClass, int pid) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException { java.lang.reflect.Method createByPIDMethod = virtualMachineImplClass.getMethod("createVirtualMachineForPID", new Class[] { VirtualMachineManager.class, Integer.TYPE, Integer.TYPE }); return (VirtualMachine) createByPIDMethod.invoke(null, new Object[] { Bootstrap.virtualMachineManager(), new Integer(pid), new Integer(0) }); } public VirtualMachine attach(Map arguments) throws IOException, IllegalConnectorArgumentsException { int pid = 0; try { pid = Integer.parseInt(argument(ARG_PID, arguments).value()); } catch (NumberFormatException nfe) { throw (IllegalConnectorArgumentsException) new IllegalConnectorArgumentsException (nfe.getMessage(), ARG_PID).initCause(nfe); } checkProcessAttach(pid); VirtualMachine myVM = null; try { try { Class vmImplClass = loadVirtualMachineImplClass(); myVM = createVirtualMachine(vmImplClass, pid); } catch (InvocationTargetException ite) { Class vmImplClass = handleVMVersionMismatch(ite); if (vmImplClass != null) { return createVirtualMachine(vmImplClass, pid); } else { throw ite; } } } catch (Exception ee) { if (DEBUG) { System.out.println("VirtualMachineImpl() got an exception:"); ee.printStackTrace(); System.out.println("pid = " + pid); } throw (IOException) new IOException().initCause(ee); } setVMDisposeObserver(myVM); return myVM; } public String name() { return "sun.jvm.hotspot.jdi.SAPIDAttachingConnector"; } public String description() { return getString("This connector allows you to attach to a Java process using the Serviceability Agent"); } public Transport transport() { return transport; } }