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annotate agent/src/share/classes/sun/jvm/hotspot/debugger/linux/amd64/LinuxAMD64CFrame.java @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 4ca6dc0799b6 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17524 | 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.debugger.linux.amd64; | |
| 26 | |
| 27 import sun.jvm.hotspot.debugger.*; | |
| 6163 | 28 import sun.jvm.hotspot.debugger.amd64.*; |
| 0 | 29 import sun.jvm.hotspot.debugger.linux.*; |
| 30 import sun.jvm.hotspot.debugger.cdbg.*; | |
| 31 import sun.jvm.hotspot.debugger.cdbg.basic.*; | |
| 32 | |
| 33 final public class LinuxAMD64CFrame extends BasicCFrame { | |
| 34 public LinuxAMD64CFrame(LinuxDebugger dbg, Address rbp, Address rip) { | |
| 35 super(dbg.getCDebugger()); | |
| 36 this.rbp = rbp; | |
| 37 this.rip = rip; | |
| 38 this.dbg = dbg; | |
| 39 } | |
| 40 | |
| 41 // override base class impl to avoid ELF parsing | |
| 42 public ClosestSymbol closestSymbolToPC() { | |
| 43 // try native lookup in debugger. | |
| 44 return dbg.lookup(dbg.getAddressValue(pc())); | |
| 45 } | |
| 46 | |
| 47 public Address pc() { | |
| 48 return rip; | |
| 49 } | |
| 50 | |
| 51 public Address localVariableBase() { | |
| 52 return rbp; | |
| 53 } | |
| 54 | |
| 6163 | 55 public CFrame sender(ThreadProxy thread) { |
| 56 AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext(); | |
| 57 Address rsp = context.getRegisterAsAddress(AMD64ThreadContext.RSP); | |
| 58 | |
| 59 if ( (rbp == null) || rbp.lessThan(rsp) ) { | |
| 0 | 60 return null; |
| 61 } | |
| 62 | |
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63 // Check alignment of rbp |
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64 if ( dbg.getAddressValue(rbp) % ADDRESS_SIZE != 0) { |
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65 return null; |
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66 } |
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67 |
| 0 | 68 Address nextRBP = rbp.getAddressAt( 0 * ADDRESS_SIZE); |
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69 if (nextRBP == null || nextRBP.lessThanOrEqual(rbp)) { |
| 0 | 70 return null; |
| 71 } | |
| 72 Address nextPC = rbp.getAddressAt( 1 * ADDRESS_SIZE); | |
| 73 if (nextPC == null) { | |
| 74 return null; | |
| 75 } | |
| 76 return new LinuxAMD64CFrame(dbg, nextRBP, nextPC); | |
| 77 } | |
| 78 | |
| 79 // package/class internals only | |
| 80 private static final int ADDRESS_SIZE = 8; | |
| 81 private Address rip; | |
| 82 private Address rbp; | |
| 83 private LinuxDebugger dbg; | |
| 84 } |