Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/windbg/DLL.java @ 2072:d6cd0d55d0b5
6987812: 2/3 SAJDI: "gHotSpotVMTypes was not initialized properly in the remote process"
Summary: Change ExportDirectoryTableImpl to return the 'Export RVA' field without modification. Read 'Base Of Data' field in optional header when PE32 format COFF file is read. Refine search for dbgeng.dll and dbghelp.dll. Other cleanups.
Reviewed-by: swamyv, poonam
| author | dcubed |
|---|---|
| date | Thu, 23 Dec 2010 07:58:35 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 2003, 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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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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.windbg; | |
| 26 | |
| 27 import sun.jvm.hotspot.debugger.*; | |
| 28 import sun.jvm.hotspot.debugger.win32.coff.*; | |
| 29 import sun.jvm.hotspot.debugger.cdbg.*; | |
| 30 import sun.jvm.hotspot.utilities.Assert; | |
| 31 import sun.jvm.hotspot.utilities.memo.*; | |
| 32 | |
| 33 /** Provides a simple wrapper around the COFF library which handles | |
| 34 relocation. A DLL can represent either a DLL or an EXE file. */ | |
| 35 | |
| 36 public class DLL implements LoadObject { | |
| 37 | |
| 38 public DLL(WindbgDebugger dbg, String filename, long size, Address relocation) throws COFFException { | |
| 39 this.dbg = dbg; | |
| 40 fullPathName = filename; | |
| 41 this.size = size; | |
| 42 file = new MemoizedObject() { | |
| 43 public Object computeValue() { | |
| 44 return COFFFileParser.getParser().parse(fullPathName); | |
| 45 } | |
| 46 }; | |
| 47 addr = relocation; | |
| 48 } | |
| 49 | |
| 50 /** This constructor was originally used to fetch the DLL's name out | |
| 51 of the target process to match it up with the known DLL names, | |
| 52 before the fetching of the DLL names and bases was folded into | |
| 53 one command. It is no longer used. If it is used, getName() will | |
| 54 return null and getSize() will return 0. */ | |
| 55 public DLL(Address base) throws COFFException { | |
| 56 this.addr = base; | |
| 57 file = new MemoizedObject() { | |
| 58 public Object computeValue() { | |
| 59 return COFFFileParser.getParser().parse(new AddressDataSource(addr)); | |
| 60 } | |
| 61 }; | |
| 62 } | |
| 63 | |
| 64 /** Indicates whether this is really a DLL or actually a .EXE | |
| 65 file. */ | |
| 66 public boolean isDLL() { | |
| 67 return getFile().getHeader().hasCharacteristic(Characteristics.IMAGE_FILE_DLL); | |
| 68 } | |
| 69 | |
| 70 /** Look up a symbol; returns absolute address or null if symbol was | |
| 71 not found. */ | |
| 72 public Address lookupSymbol(String symbol) throws COFFException { | |
| 73 if (!isDLL()) { | |
| 74 return null; | |
| 75 } | |
| 76 ExportDirectoryTable exports = getExportDirectoryTable(); | |
| 77 return lookupSymbol(symbol, exports, | |
| 78 0, exports.getNumberOfNamePointers() - 1); | |
| 79 } | |
| 80 | |
| 81 public Address getBase() { | |
| 82 return addr; | |
| 83 } | |
| 84 | |
| 85 /** Returns the full path name of this DLL/EXE, or null if this DLL | |
| 86 object was created by parsing the target process's address | |
| 87 space. */ | |
| 88 public String getName() { | |
| 89 return fullPathName; | |
| 90 } | |
| 91 | |
| 92 public long getSize() { | |
| 93 return size; | |
| 94 } | |
| 95 | |
| 96 public CDebugInfoDataBase getDebugInfoDataBase() throws DebuggerException { | |
| 97 if (db != null) { | |
| 98 return db; | |
| 99 } | |
| 100 | |
| 101 // Try to parse | |
| 102 if (dbg == null) { | |
| 103 return null; // Need WindbgDebugger | |
| 104 } | |
| 105 | |
| 106 if (Assert.ASSERTS_ENABLED) { | |
| 107 Assert.that(fullPathName != null, "Need full path name to build debug info database"); | |
| 108 } | |
| 109 | |
| 110 db = new WindbgCDebugInfoBuilder(dbg).buildDataBase(fullPathName, addr); | |
| 111 return db; | |
| 112 } | |
| 113 | |
| 114 public BlockSym debugInfoForPC(Address pc) throws DebuggerException { | |
| 115 CDebugInfoDataBase db = getDebugInfoDataBase(); | |
| 116 if (db == null) { | |
| 117 return null; | |
| 118 } | |
| 119 return db.debugInfoForPC(pc); | |
| 120 } | |
| 121 | |
| 122 public ClosestSymbol closestSymbolToPC(Address pcAsAddr) throws DebuggerException { | |
| 123 ExportDirectoryTable exports = getExportDirectoryTable(); | |
| 124 if (exports == null) { | |
| 125 return null; | |
| 126 } | |
| 127 String name = null; | |
| 128 long pc = dbg.getAddressValue(pcAsAddr); | |
| 129 long diff = Long.MAX_VALUE; | |
| 130 long base = dbg.getAddressValue(addr); | |
| 131 for (int i = 0; i < exports.getNumberOfNamePointers(); i++) { | |
| 132 if (!exports.isExportAddressForwarder(exports.getExportOrdinal(i))) { | |
| 133 long tmp = base + (exports.getExportAddress(exports.getExportOrdinal(i)) & 0xFFFFFFFF); | |
| 134 if ((tmp <= pc) && ((pc - tmp) < diff)) { | |
| 135 diff = pc - tmp; | |
| 136 name = exports.getExportName(i); | |
| 137 } | |
| 138 } | |
| 139 } | |
| 140 if (name == null) { | |
| 141 return null; | |
| 142 } | |
| 143 return new ClosestSymbol(name, diff); | |
| 144 } | |
| 145 | |
| 146 public LineNumberInfo lineNumberForPC(Address pc) throws DebuggerException { | |
| 147 CDebugInfoDataBase db = getDebugInfoDataBase(); | |
| 148 if (db == null) { | |
| 149 return null; | |
| 150 } | |
| 151 return db.lineNumberForPC(pc); | |
| 152 } | |
| 153 | |
| 154 public void close() { | |
| 155 getFile().close(); | |
| 156 file = null; | |
| 157 } | |
| 158 | |
| 159 //---------------------------------------------------------------------- | |
| 160 // Internals only below this point | |
| 161 // | |
| 162 | |
| 163 private COFFFile getFile() { | |
| 164 return (COFFFile) file.getValue(); | |
| 165 } | |
| 166 | |
| 167 private Address lookupSymbol(String symbol, ExportDirectoryTable exports, | |
| 168 int loIdx, int hiIdx) { | |
| 169 do { | |
| 170 int curIdx = ((loIdx + hiIdx) >> 1); | |
| 171 String cur = exports.getExportName(curIdx); | |
| 172 if (symbol.equals(cur)) { | |
| 173 return addr.addOffsetTo( | |
| 174 ((long) exports.getExportAddress(exports.getExportOrdinal(curIdx))) & 0xFFFFFFFFL | |
| 175 ); | |
| 176 } | |
| 177 if (symbol.compareTo(cur) < 0) { | |
| 178 if (hiIdx == curIdx) { | |
| 179 hiIdx = curIdx - 1; | |
| 180 } else { | |
| 181 hiIdx = curIdx; | |
| 182 } | |
| 183 } else { | |
| 184 if (loIdx == curIdx) { | |
| 185 loIdx = curIdx + 1; | |
| 186 } else { | |
| 187 loIdx = curIdx; | |
| 188 } | |
| 189 } | |
| 190 } while (loIdx <= hiIdx); | |
| 191 | |
| 192 return null; | |
| 193 } | |
| 194 | |
| 195 private ExportDirectoryTable getExportDirectoryTable() { | |
| 196 return | |
| 197 getFile().getHeader().getOptionalHeader().getDataDirectories().getExportDirectoryTable(); | |
| 198 } | |
| 199 | |
| 200 private WindbgDebugger dbg; | |
| 201 private String fullPathName; | |
| 202 private long size; | |
| 203 // MemoizedObject contains a COFFFile | |
| 204 private MemoizedObject file; | |
| 205 // Base address of module in target process | |
| 206 private Address addr; | |
| 207 // Debug info database for this DLL | |
| 208 private CDebugInfoDataBase db; | |
| 209 } |