| /* |
| * Copyright (c) 2000, 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. |
| * |
| */ |
| |
| package sun.jvm.hotspot; |
| |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.oops.*; |
| |
| public class DebugServer { |
| private void usage() { |
| System.out.println("usage: java " + getClass().getName() + " <pid> [server id]"); |
| System.out.println(" or: java " + getClass().getName() + " <executable> <core> [server id]"); |
| System.out.println("\"pid\" must be the process ID of a HotSpot process."); |
| System.out.println("If reading a core file, \"executable\" must (currently) be the"); |
| System.out.println("full path name to the precise java executable which generated"); |
| System.out.println("the core file (not, on Solaris, the \"java\" wrapper script in"); |
| System.out.println("the \"bin\" subdirectory of the JDK.)"); |
| System.out.println("The \"server id\" is a unique name for a specific remote debuggee."); |
| System.exit(1); |
| } |
| |
| public static void main(String[] args) { |
| new DebugServer().run(args); |
| } |
| |
| private void run(String[] args) { |
| if ((args.length < 1) || (args.length > 3)) { |
| usage(); |
| } |
| |
| // Attempt to handle "-h" or "-help" |
| if (args[0].startsWith("-")) { |
| usage(); |
| } |
| |
| int pid = 0; |
| boolean usePid = false; |
| String coreFileName = null; |
| // FIXME: would be nice to pick this up from the core file |
| // somehow, but that doesn't look possible. Should at least figure |
| // it out from a path to the JDK. |
| String javaExecutableName = null; |
| String serverID = null; |
| |
| switch (args.length) { |
| case 1: |
| try { |
| pid = Integer.parseInt(args[0]); |
| usePid = true; |
| } catch (NumberFormatException e) { |
| usage(); |
| } |
| break; |
| |
| case 2: |
| // either we have pid and server id or exec file and core file |
| try { |
| pid = Integer.parseInt(args[0]); |
| usePid = true; |
| serverID = args[1]; |
| } catch (NumberFormatException e) { |
| pid = -1; |
| usePid = false; |
| javaExecutableName = args[0]; |
| coreFileName = args[1]; |
| } |
| break; |
| |
| case 3: |
| javaExecutableName = args[0]; |
| coreFileName = args[1]; |
| serverID = args[2]; |
| break; |
| |
| default: |
| // should not happend, taken care already. |
| break; |
| } |
| |
| final HotSpotAgent agent = new HotSpotAgent(); |
| try { |
| if (usePid) { |
| System.err.println("Attaching to process ID " + pid + " and starting RMI services, please wait..."); |
| agent.startServer(pid, serverID); |
| } else { |
| System.err.println("Attaching to core " + coreFileName + |
| " from executable " + javaExecutableName + " and starting RMI services, please wait..."); |
| agent.startServer(javaExecutableName, coreFileName, serverID); |
| } |
| } |
| catch (DebuggerException e) { |
| if (usePid) { |
| System.err.print("Error attaching to process or starting server: "); |
| } else { |
| System.err.print("Error attaching to core file or starting server: "); |
| } |
| e.printStackTrace(); |
| System.exit(1); |
| } |
| |
| // shutdown hook to clean-up the server in case of forced exit. |
| Runtime.getRuntime().addShutdownHook(new java.lang.Thread( |
| new Runnable() { |
| public void run() { |
| agent.shutdownServer(); |
| } |
| })); |
| System.err.println("Debugger attached and RMI services started."); |
| } |
| } |