Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/windbg/DLL.java @ 10343:6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
Summary: Inject protection_domain, signers, init_lock into java_lang_Class
Reviewed-by: stefank, dholmes, sla
author | coleenp |
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date | Wed, 22 May 2013 14:37:49 -0400 |
parents | c18cbe5936b8 |
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rev | line source |
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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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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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6941466: Oracle rebranding changes for Hotspot repositories
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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 } |