1 /* 2 * Copyright (c) 2003, 2006, 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.bsd; 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.x86.*; 32 import sun.jvm.hotspot.debugger.amd64.*; 33 import sun.jvm.hotspot.debugger.bsd.x86.*; 34 import sun.jvm.hotspot.debugger.bsd.amd64.*; 35 import sun.jvm.hotspot.utilities.*; 36 37 class BsdCDebugger implements CDebugger { 38 private BsdDebugger dbg; 39 40 BsdCDebugger(BsdDebugger dbg) { 41 this.dbg = dbg; 42 } 43 44 public List getThreadList() throws DebuggerException { 45 return dbg.getThreadList(); 46 } 47 48 public List/*<LoadObject>*/ getLoadObjectList() throws DebuggerException { 49 return dbg.getLoadObjectList(); 50 } 51 52 public LoadObject loadObjectContainingPC(Address pc) throws DebuggerException { 53 if (pc == null) { 54 return null; 55 } 56 List objs = getLoadObjectList(); 57 Object[] arr = objs.toArray(); 58 // load objects are sorted by base address, do binary search 59 int mid = -1; 60 int low = 0; 61 int high = arr.length - 1; 62 63 while (low <= high) { 64 mid = (low + high) >> 1; 65 LoadObject midVal = (LoadObject) arr[mid]; 66 long cmp = pc.minus(midVal.getBase()); 67 if (cmp < 0) { 68 high = mid - 1; 69 } else if (cmp > 0) { 70 long size = midVal.getSize(); 71 if (cmp >= size) { 72 low = mid + 1; 73 } else { 74 return (LoadObject) arr[mid]; 75 } 76 } else { // match found 77 return (LoadObject) arr[mid]; 78 } 79 } 80 // no match found. 81 return null; 82 } 83 84 public CFrame topFrameForThread(ThreadProxy thread) throws DebuggerException { 85 String cpu = dbg.getCPU(); 86 if (cpu.equals("x86")) { 87 X86ThreadContext context = (X86ThreadContext) thread.getContext(); 88 Address ebp = context.getRegisterAsAddress(X86ThreadContext.EBP); 89 if (ebp == null) return null; 90 Address pc = context.getRegisterAsAddress(X86ThreadContext.EIP); 91 if (pc == null) return null; 92 return new BsdX86CFrame(dbg, ebp, pc); 93 } else if (cpu.equals("amd64")) { 94 AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext(); 95 Address rbp = context.getRegisterAsAddress(AMD64ThreadContext.RBP); 96 if (rbp == null) return null; 97 Address pc = context.getRegisterAsAddress(AMD64ThreadContext.RIP); 98 if (pc == null) return null; 99 return new BsdAMD64CFrame(dbg, rbp, pc); 100 } else { 101 throw new DebuggerException(cpu + " is not yet supported"); 102 } 103 } 104 105 public String getNameOfFile(String fileName) { 106 return new File(fileName).getName(); 107 } 108 109 public ProcessControl getProcessControl() throws DebuggerException { 110 // FIXME: after stabs parser 111 return null; 112 } 113 114 public boolean canDemangle() { 115 return false; 116 } 117 118 public String demangle(String sym) { 119 throw new UnsupportedOperationException(); 120 } 121 }