1 /* 2 * Copyright (c) 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.bsd.amd64; 26 27 import sun.jvm.hotspot.debugger.*; 28 import sun.jvm.hotspot.debugger.bsd.*; 29 import sun.jvm.hotspot.debugger.cdbg.*; 30 import sun.jvm.hotspot.debugger.cdbg.basic.*; 31 32 final public class BsdAMD64CFrame extends BasicCFrame { 33 public BsdAMD64CFrame(BsdDebugger dbg, Address rbp, Address rip) { 34 super(dbg.getCDebugger()); 35 this.rbp = rbp; 36 this.rip = rip; 37 this.dbg = dbg; 38 } 39 40 // override base class impl to avoid ELF parsing 41 public ClosestSymbol closestSymbolToPC() { 42 // try native lookup in debugger. 43 return dbg.lookup(dbg.getAddressValue(pc())); 44 } 45 46 public Address pc() { 47 return rip; 48 } 49 50 public Address localVariableBase() { 51 return rbp; 52 } 53 54 public CFrame sender() { 55 if (rbp == null) { 56 return null; 57 } 58 59 Address nextRBP = rbp.getAddressAt( 0 * ADDRESS_SIZE); 60 if (nextRBP == null) { 61 return null; 62 } 63 Address nextPC = rbp.getAddressAt( 1 * ADDRESS_SIZE); 64 if (nextPC == null) { 65 return null; 66 } 67 return new BsdAMD64CFrame(dbg, nextRBP, nextPC); 68 } 69 70 // package/class internals only 71 private static final int ADDRESS_SIZE = 8; 72 private Address rip; 73 private Address rbp; 74 private BsdDebugger dbg; 75 }