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, 20 * CA 94065 USA or visit www.oracle.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.debugger.linux; 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.sparc.*; 34 import sun.jvm.hotspot.debugger.linux.x86.*; 35 import sun.jvm.hotspot.debugger.linux.amd64.*; 36 import sun.jvm.hotspot.debugger.linux.sparc.*; 37 import sun.jvm.hotspot.utilities.*; 38 39 class LinuxCDebugger implements CDebugger { 40 private LinuxDebugger dbg; 41 42 LinuxCDebugger(LinuxDebugger dbg) { 43 this.dbg = dbg; 44 } 45 46 public List getThreadList() throws DebuggerException { 47 return dbg.getThreadList(); 48 } 49 50 public List/*<LoadObject>*/ getLoadObjectList() throws DebuggerException { 51 return dbg.getLoadObjectList(); 52 } 53 54 public LoadObject loadObjectContainingPC(Address pc) throws DebuggerException { 55 if (pc == null) { 56 return null; 57 } 58 List objs = getLoadObjectList(); 59 Object[] arr = objs.toArray(); 60 // load objects are sorted by base address, do binary search 61 int mid = -1; 62 int low = 0; 63 int high = arr.length - 1; 64 65 while (low <= high) { 66 mid = (low + high) >> 1; 67 LoadObject midVal = (LoadObject) arr[mid]; 68 long cmp = pc.minus(midVal.getBase()); 69 if (cmp < 0) { 70 high = mid - 1; 71 } else if (cmp > 0) { 72 long size = midVal.getSize(); 73 if (cmp >= size) { 74 low = mid + 1; 75 } else { 76 return (LoadObject) arr[mid]; 77 } 78 } else { // match found 79 return (LoadObject) arr[mid]; 80 } 81 } 82 // no match found. 83 return null; 84 } 85 86 public CFrame topFrameForThread(ThreadProxy thread) throws DebuggerException { 87 String cpu = dbg.getCPU(); 88 if (cpu.equals("x86")) { 89 X86ThreadContext context = (X86ThreadContext) thread.getContext(); 90 Address ebp = context.getRegisterAsAddress(X86ThreadContext.EBP); 91 if (ebp == null) return null; 92 Address pc = context.getRegisterAsAddress(X86ThreadContext.EIP); 93 if (pc == null) return null; 94 return new LinuxX86CFrame(dbg, ebp, pc); 95 } else if (cpu.equals("amd64")) { 96 AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext(); 97 Address rbp = context.getRegisterAsAddress(AMD64ThreadContext.RBP); 98 if (rbp == null) return null; 99 Address pc = context.getRegisterAsAddress(AMD64ThreadContext.RIP); 100 if (pc == null) return null; 101 return new LinuxAMD64CFrame(dbg, rbp, pc); 102 } else if (cpu.equals("sparc")) { 103 SPARCThreadContext context = (SPARCThreadContext) thread.getContext(); 104 Address sp = context.getRegisterAsAddress(SPARCThreadContext.R_SP); 105 if (sp == null) return null; 106 Address pc = context.getRegisterAsAddress(SPARCThreadContext.R_O7); 107 if (pc == null) return null; 108 return new LinuxSPARCCFrame(dbg, sp, pc, LinuxDebuggerLocal.getAddressSize()); 109 } else { 110 throw new DebuggerException(cpu + " is not yet supported"); 111 } 112 } 113 114 public String getNameOfFile(String fileName) { 115 return new File(fileName).getName(); 116 } 117 118 public ProcessControl getProcessControl() throws DebuggerException { 119 // FIXME: after stabs parser 120 return null; 121 } 122 123 public boolean canDemangle() { 124 return false; 125 } 126 127 public String demangle(String sym) { 128 throw new UnsupportedOperationException(); 129 } 130 }