| /* |
| * Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.debugger.linux.sparc; |
| |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.debugger.sparc.*; |
| import sun.jvm.hotspot.debugger.linux.*; |
| import sun.jvm.hotspot.debugger.cdbg.*; |
| import sun.jvm.hotspot.debugger.cdbg.basic.*; |
| |
| final public class LinuxSPARCCFrame extends BasicCFrame { |
| // package/class internals only |
| |
| public LinuxSPARCCFrame(LinuxDebugger dbg, Address sp, Address pc, int address_size) { |
| super(dbg.getCDebugger()); |
| this.sp = sp; |
| this.pc = pc; |
| this.dbg = dbg; |
| this.address_size=address_size; |
| if (address_size==8) SPARC_STACK_BIAS = 0x7ff; |
| else SPARC_STACK_BIAS = 0x0; |
| } |
| |
| // override base class impl to avoid ELF parsing |
| public ClosestSymbol closestSymbolToPC() { |
| // try native lookup in debugger. |
| return dbg.lookup(dbg.getAddressValue(pc())); |
| } |
| |
| public Address pc() { |
| return pc; |
| } |
| |
| public Address localVariableBase() { |
| return sp; |
| } |
| |
| public CFrame sender(ThreadProxy thread) { |
| if (sp == null) { |
| return null; |
| } |
| |
| Address nextSP = sp.getAddressAt( SPARCThreadContext.R_SP * address_size + SPARC_STACK_BIAS); |
| if (nextSP == null) { |
| return null; |
| } |
| Address nextPC = sp.getAddressAt(SPARCThreadContext.R_O7 * address_size + SPARC_STACK_BIAS); |
| if (nextPC == null) { |
| return null; |
| } |
| return new LinuxSPARCCFrame(dbg, nextSP, nextPC,address_size); |
| } |
| |
| public static int SPARC_STACK_BIAS; |
| private static int address_size; |
| private Address pc; |
| private Address sp; |
| private LinuxDebugger dbg; |
| } |