1 /*
   2  * Copyright (c) 2001, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.debugger.win32;
  26 
  27 import java.io.*;
  28 import java.util.*;
  29 import sun.jvm.hotspot.debugger.*;
  30 import sun.jvm.hotspot.debugger.cdbg.*;
  31 import sun.jvm.hotspot.debugger.cdbg.basic.x86.*;
  32 import sun.jvm.hotspot.debugger.x86.*;
  33 import sun.jvm.hotspot.utilities.AddressOps;
  34 
  35 class Win32CDebugger implements CDebugger, ProcessControl {
  36   // FIXME: think about how to make this work in a remote debugging
  37   // scenario; who should keep open DLLs? Need local copies of these
  38   // DLLs on the debugging machine?
  39   private Win32Debugger dbg;
  40 
  41   Win32CDebugger(Win32Debugger dbg) {
  42     this.dbg = dbg;
  43   }
  44 
  45   public List getThreadList() throws DebuggerException {
  46     return dbg.getThreadList();
  47   }
  48 
  49   public List/*<LoadObject>*/ getLoadObjectList() throws DebuggerException{
  50     return dbg.getLoadObjectList();
  51   }
  52 
  53   public LoadObject loadObjectContainingPC(Address pc) throws DebuggerException {
  54     // FIXME: could keep sorted list of these to be able to do binary
  55     // searches, for better scalability
  56     if (pc == null) {
  57       return null;
  58     }
  59     List objs = getLoadObjectList();
  60     for (Iterator iter = objs.iterator(); iter.hasNext(); ) {
  61       LoadObject obj = (LoadObject) iter.next();
  62       if (AddressOps.lte(obj.getBase(), pc) && (pc.minus(obj.getBase()) < obj.getSize())) {
  63         return obj;
  64       }
  65     }
  66     return null;
  67   }
  68 
  69   public CFrame topFrameForThread(ThreadProxy thread) throws DebuggerException {
  70     X86ThreadContext context = (X86ThreadContext) thread.getContext();
  71     Address ebp = context.getRegisterAsAddress(X86ThreadContext.EBP);
  72     if (ebp == null) return null;
  73     Address pc  = context.getRegisterAsAddress(X86ThreadContext.EIP);
  74     if (pc == null) return null;
  75     return new X86CFrame(this, ebp, pc);
  76   }
  77 
  78   public String getNameOfFile(String fileName) {
  79     return new File(fileName).getName();
  80   }
  81 
  82   public ProcessControl getProcessControl() throws DebuggerException {
  83     return this;
  84   }
  85 
  86   // C++ name demangling
  87   public boolean canDemangle() {
  88     return false;
  89   }
  90 
  91   public String demangle(String sym) {
  92     throw new UnsupportedOperationException();
  93   }
  94 
  95   //
  96   // Support for ProcessControl interface
  97   //
  98 
  99   public void suspend() throws DebuggerException {
 100     dbg.suspend();
 101   }
 102   public void resume() throws DebuggerException {
 103     dbg.resume();
 104   }
 105   public boolean isSuspended() throws DebuggerException {
 106     return dbg.isSuspended();
 107   }
 108   public void setBreakpoint(Address addr) throws DebuggerException {
 109     dbg.setBreakpoint(addr);
 110   }
 111   public void clearBreakpoint(Address addr) throws DebuggerException {
 112     dbg.clearBreakpoint(addr);
 113   }
 114   public boolean isBreakpointSet(Address addr) throws DebuggerException {
 115     return dbg.isBreakpointSet(addr);
 116   }
 117   public DebugEvent debugEventPoll() throws DebuggerException {
 118     return dbg.debugEventPoll();
 119   }
 120   public void debugEventContinue() throws DebuggerException {
 121     dbg.debugEventContinue();
 122   }
 123 }