Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/debugger/windbg/DLL.java @ 17467:55fb97c4c58d hs25-b65
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
author | mikael |
---|---|
date | Tue, 24 Dec 2013 11:48:39 -0800 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2002, 2003, 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.windbg; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.win32.coff.*; import sun.jvm.hotspot.debugger.cdbg.*; import sun.jvm.hotspot.utilities.Assert; import sun.jvm.hotspot.utilities.memo.*; /** Provides a simple wrapper around the COFF library which handles relocation. A DLL can represent either a DLL or an EXE file. */ public class DLL implements LoadObject { public DLL(WindbgDebugger dbg, String filename, long size, Address relocation) throws COFFException { this.dbg = dbg; fullPathName = filename; this.size = size; file = new MemoizedObject() { public Object computeValue() { return COFFFileParser.getParser().parse(fullPathName); } }; addr = relocation; } /** This constructor was originally used to fetch the DLL's name out of the target process to match it up with the known DLL names, before the fetching of the DLL names and bases was folded into one command. It is no longer used. If it is used, getName() will return null and getSize() will return 0. */ public DLL(Address base) throws COFFException { this.addr = base; file = new MemoizedObject() { public Object computeValue() { return COFFFileParser.getParser().parse(new AddressDataSource(addr)); } }; } /** Indicates whether this is really a DLL or actually a .EXE file. */ public boolean isDLL() { return getFile().getHeader().hasCharacteristic(Characteristics.IMAGE_FILE_DLL); } /** Look up a symbol; returns absolute address or null if symbol was not found. */ public Address lookupSymbol(String symbol) throws COFFException { if (!isDLL()) { return null; } ExportDirectoryTable exports = getExportDirectoryTable(); return lookupSymbol(symbol, exports, 0, exports.getNumberOfNamePointers() - 1); } public Address getBase() { return addr; } /** Returns the full path name of this DLL/EXE, or null if this DLL object was created by parsing the target process's address space. */ public String getName() { return fullPathName; } public long getSize() { return size; } public CDebugInfoDataBase getDebugInfoDataBase() throws DebuggerException { if (db != null) { return db; } // Try to parse if (dbg == null) { return null; // Need WindbgDebugger } if (Assert.ASSERTS_ENABLED) { Assert.that(fullPathName != null, "Need full path name to build debug info database"); } db = new WindbgCDebugInfoBuilder(dbg).buildDataBase(fullPathName, addr); return db; } public BlockSym debugInfoForPC(Address pc) throws DebuggerException { CDebugInfoDataBase db = getDebugInfoDataBase(); if (db == null) { return null; } return db.debugInfoForPC(pc); } public ClosestSymbol closestSymbolToPC(Address pcAsAddr) throws DebuggerException { ExportDirectoryTable exports = getExportDirectoryTable(); if (exports == null) { return null; } String name = null; long pc = dbg.getAddressValue(pcAsAddr); long diff = Long.MAX_VALUE; long base = dbg.getAddressValue(addr); for (int i = 0; i < exports.getNumberOfNamePointers(); i++) { if (!exports.isExportAddressForwarder(exports.getExportOrdinal(i))) { long tmp = base + (exports.getExportAddress(exports.getExportOrdinal(i)) & 0xFFFFFFFF); if ((tmp <= pc) && ((pc - tmp) < diff)) { diff = pc - tmp; name = exports.getExportName(i); } } } if (name == null) { return null; } return new ClosestSymbol(name, diff); } public LineNumberInfo lineNumberForPC(Address pc) throws DebuggerException { CDebugInfoDataBase db = getDebugInfoDataBase(); if (db == null) { return null; } return db.lineNumberForPC(pc); } public void close() { getFile().close(); file = null; } //---------------------------------------------------------------------- // Internals only below this point // private COFFFile getFile() { return (COFFFile) file.getValue(); } private Address lookupSymbol(String symbol, ExportDirectoryTable exports, int loIdx, int hiIdx) { do { int curIdx = ((loIdx + hiIdx) >> 1); String cur = exports.getExportName(curIdx); if (symbol.equals(cur)) { return addr.addOffsetTo( ((long) exports.getExportAddress(exports.getExportOrdinal(curIdx))) & 0xFFFFFFFFL ); } if (symbol.compareTo(cur) < 0) { if (hiIdx == curIdx) { hiIdx = curIdx - 1; } else { hiIdx = curIdx; } } else { if (loIdx == curIdx) { loIdx = curIdx + 1; } else { loIdx = curIdx; } } } while (loIdx <= hiIdx); return null; } private ExportDirectoryTable getExportDirectoryTable() { return getFile().getHeader().getOptionalHeader().getDataDirectories().getExportDirectoryTable(); } private WindbgDebugger dbg; private String fullPathName; private long size; // MemoizedObject contains a COFFFile private MemoizedObject file; // Base address of module in target process private Address addr; // Debug info database for this DLL private CDebugInfoDataBase db; }