| /* |
| * Copyright (c) 2005, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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.sun.tools.jdi; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import com.sun.jdi.Bootstrap; |
| import com.sun.jdi.VirtualMachine; |
| import com.sun.jdi.connect.AttachingConnector; |
| import com.sun.jdi.connect.Connector; |
| import com.sun.jdi.connect.IllegalConnectorArgumentsException; |
| import com.sun.jdi.connect.Transport; |
| import com.sun.jdi.connect.spi.Connection; |
| import com.sun.jdi.connect.spi.TransportService; |
| |
| /* |
| * An AttachingConnector that connects to a debuggee by specifying the process |
| * id (pid) as the connector argument. If the process is a debuggee listening |
| * on a transport address then this connector reads the transport address |
| * and attempts to attach to it using the appropriate transport. |
| */ |
| |
| public class ProcessAttachingConnector |
| extends ConnectorImpl implements AttachingConnector |
| { |
| /* |
| * The arguments that this connector supports |
| */ |
| static final String ARG_PID = "pid"; |
| static final String ARG_TIMEOUT = "timeout"; |
| |
| com.sun.tools.attach.VirtualMachine vm; |
| Transport transport; |
| |
| public ProcessAttachingConnector() { |
| addStringArgument( |
| ARG_PID, |
| getString("process_attaching.pid.label"), |
| getString("process_attaching.pid"), |
| "", |
| true); |
| |
| addIntegerArgument( |
| ARG_TIMEOUT, |
| getString("generic_attaching.timeout.label"), // use generic keys to keep |
| getString("generic_attaching.timeout"), // resource bundle small |
| "", |
| false, |
| 0, Integer.MAX_VALUE); |
| |
| transport = new Transport() { |
| public String name() { |
| return "local"; |
| } |
| }; |
| } |
| |
| /** |
| * Attach to a target VM using the specified address and Connector arguments. |
| */ |
| public VirtualMachine attach(Map<String,? extends Connector.Argument> args) |
| throws IOException, IllegalConnectorArgumentsException |
| { |
| String pid = argument(ARG_PID, args).value(); |
| String t = argument(ARG_TIMEOUT, args).value(); |
| int timeout = 0; |
| if (t.length() > 0) { |
| timeout = Integer.decode(t).intValue(); |
| } |
| |
| // Use Attach API to attach to target VM and read value of |
| // sun.jdwp.listenAddress property. |
| |
| String address = null; |
| com.sun.tools.attach.VirtualMachine vm = null; |
| try { |
| vm = com.sun.tools.attach.VirtualMachine.attach(pid); |
| Properties props = vm.getAgentProperties(); |
| address = props.getProperty("sun.jdwp.listenerAddress"); |
| } catch (Exception x) { |
| throw new IOException(x.getMessage()); |
| } finally { |
| if (vm != null) vm.detach(); |
| } |
| |
| // check that the property value is formatted correctly |
| |
| if (address == null) { |
| throw new IOException("Not a debuggee, or not listening for debugger to attach"); |
| } |
| int pos = address.indexOf(':'); |
| if (pos < 1) { |
| throw new IOException("Unable to determine transport endpoint"); |
| } |
| |
| // parse into transport library name and address |
| |
| final String lib = address.substring(0, pos); |
| address = address.substring(pos+1, address.length()); |
| |
| TransportService ts = null; |
| if (lib.equals("dt_socket")) { |
| ts = new SocketTransportService(); |
| } else { |
| if (lib.equals("dt_shmem")) { |
| try { |
| Class<?> c = Class.forName("com.sun.tools.jdi.SharedMemoryTransportService"); |
| @SuppressWarnings("deprecation") |
| Object tmp = c.newInstance(); |
| ts = (TransportService)tmp; |
| } catch (Exception x) { } |
| } |
| } |
| if (ts == null) { |
| throw new IOException("Transport " + lib + " not recognized"); |
| } |
| |
| // connect to the debuggee |
| |
| Connection connection = ts.attach(address, timeout, 0); |
| return Bootstrap.virtualMachineManager().createVirtualMachine(connection); |
| } |
| |
| public String name() { |
| return "com.sun.jdi.ProcessAttach"; |
| } |
| |
| public String description() { |
| return getString("process_attaching.description"); |
| } |
| |
| public Transport transport() { |
| if (transport == null) { |
| return new Transport() { |
| public String name() { |
| return "local"; |
| } |
| }; |
| } |
| return transport; |
| } |
| } |