LinuxPPC64CFrame.java revision 9883:903a2e023ffb
133965Sjdp/* 233965Sjdp * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 333965Sjdp * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 433965Sjdp * 533965Sjdp * This code is free software; you can redistribute it and/or modify it 689857Sobrien * under the terms of the GNU General Public License version 2 only, as 733965Sjdp * published by the Free Software Foundation. 889857Sobrien * 989857Sobrien * This code is distributed in the hope that it will be useful, but WITHOUT 1089857Sobrien * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1189857Sobrien * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1289857Sobrien * version 2 for more details (a copy is included in the LICENSE file that 1389857Sobrien * accompanied this code). 1489857Sobrien * 1533965Sjdp * You should have received a copy of the GNU General Public License version 1689857Sobrien * 2 along with this work; if not, write to the Free Software Foundation, 1760484Sobrien * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1833965Sjdp * 1933965Sjdp * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2060484Sobrien * or visit www.oracle.com if you need additional information or have any 2160484Sobrien * questions. 2260484Sobrien * 2333965Sjdp */ 2433965Sjdp 2533965Sjdppackage sun.jvm.hotspot.debugger.linux.ppc64; 2677298Sobrien 2777298Sobrienimport sun.jvm.hotspot.debugger.*; 2877298Sobrienimport sun.jvm.hotspot.debugger.ppc64.*; 2977298Sobrienimport sun.jvm.hotspot.debugger.linux.*; 3077298Sobrienimport sun.jvm.hotspot.debugger.cdbg.*; 3177298Sobrienimport sun.jvm.hotspot.debugger.cdbg.basic.*; 3233965Sjdp 3333965Sjdpfinal public class LinuxPPC64CFrame extends BasicCFrame { 3433965Sjdp // package/class internals only 3533965Sjdp 3633965Sjdp public LinuxPPC64CFrame(LinuxDebugger dbg, Address sp, Address pc, int address_size) { 3733965Sjdp super(dbg.getCDebugger()); 3833965Sjdp this.sp = sp; 3933965Sjdp this.pc = pc; 4033965Sjdp this.dbg = dbg; 41218822Sdim this.address_size = address_size; 4233965Sjdp } 4333965Sjdp 4433965Sjdp // override base class impl to avoid ELF parsing 4533965Sjdp public ClosestSymbol closestSymbolToPC() { 4633965Sjdp // try native lookup in debugger. 4733965Sjdp return dbg.lookup(dbg.getAddressValue(pc())); 4833965Sjdp } 4933965Sjdp 5033965Sjdp public Address pc() { 5133965Sjdp return pc; 5260484Sobrien } 5360484Sobrien 5460484Sobrien public Address localVariableBase() { 5560484Sobrien return sp; 5660484Sobrien } 5760484Sobrien 5860484Sobrien public CFrame sender(ThreadProxy thread) { 5933965Sjdp if (sp == null) { 6033965Sjdp return null; 6133965Sjdp } 6233965Sjdp 63 Address nextSP = sp.getAddressAt(0); 64 if (nextSP == null) { 65 return null; 66 } 67 Address nextPC = sp.getAddressAt(2 * address_size); 68 if (nextPC == null) { 69 return null; 70 } 71 return new LinuxPPC64CFrame(dbg, nextSP, nextPC, address_size); 72 } 73 74 public static int PPC64_STACK_BIAS = 0; 75 private static int address_size; 76 private Address pc; 77 private Address sp; 78 private LinuxDebugger dbg; 79} 80