Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/posix/DSO.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| 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) 2001, 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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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 package sun.jvm.hotspot.debugger.posix; | |
| 25 | |
| 26 import sun.jvm.hotspot.debugger.*; | |
| 27 import sun.jvm.hotspot.debugger.cdbg.*; | |
| 28 import sun.jvm.hotspot.debugger.posix.elf.*; | |
| 29 import sun.jvm.hotspot.utilities.memo.*; | |
| 30 | |
| 31 /** Provides a simple wrapper around the ELF library which handles | |
| 32 relocation. */ | |
| 33 public abstract class DSO implements LoadObject { | |
| 34 | |
| 35 private MemoizedObject file; // contains ELFFile | |
| 36 private String filename; | |
| 37 private Address addr; | |
| 38 private long size; | |
| 39 private IsDSO dso = new IsDSO(); | |
| 40 | |
| 41 class IsDSO extends MemoizedBoolean { | |
| 42 protected boolean computeValue() { | |
| 43 return getFile().getHeader().getFileType() == ELFHeader.FT_DYN; | |
| 44 } | |
| 45 }; | |
| 46 | |
| 47 class ELFFileByName extends MemoizedObject { | |
| 48 protected Object computeValue() { | |
| 49 return ELFFileParser.getParser().parse(DSO.this.filename); | |
| 50 } | |
| 51 }; | |
| 52 | |
| 53 class ELFFileByAddress extends MemoizedObject { | |
| 54 protected Object computeValue() { | |
| 55 return ELFFileParser.getParser().parse(new AddressDataSource(DSO.this.addr)); | |
| 56 } | |
| 57 }; | |
| 58 | |
| 59 public DSO(String filename, long size, Address relocation) throws ELFException { | |
| 60 this.filename = filename; | |
| 61 this.size = size; | |
| 62 this.addr = relocation; | |
| 63 this.file = new ELFFileByName(); | |
| 64 } | |
| 65 | |
| 66 public DSO(long size, Address relocation) throws ELFException { | |
| 67 this.addr = relocation; | |
| 68 this.size = size; | |
| 69 this.file = new ELFFileByAddress(); | |
| 70 } | |
| 71 | |
| 72 public String getName() { | |
| 73 return filename; | |
| 74 } | |
| 75 | |
| 76 public Address getBase() { | |
| 77 return addr; | |
| 78 } | |
| 79 | |
| 80 /** if this .so is unloaded and re-loaded in the same process at a different | |
| 81 base, change the base by calling this to avoid re-parsing the ELF. */ | |
| 82 public void setBase(Address newBase) { | |
| 83 addr = newBase; | |
| 84 if (filename == null) { | |
| 85 // ELFFile was created by address. we have to re-parse it. | |
| 86 file = new ELFFileByAddress(); | |
| 87 dso = new IsDSO(); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 public long getSize() { | |
| 92 return size; | |
| 93 } | |
| 94 | |
| 95 public CDebugInfoDataBase getDebugInfoDataBase() throws DebuggerException { | |
| 96 // FIXME: after stabs parser | |
| 97 return null; | |
| 98 } | |
| 99 | |
| 100 public BlockSym debugInfoForPC(Address pc) throws DebuggerException { | |
| 101 // FIXME: after stabs parser | |
| 102 return null; | |
| 103 } | |
| 104 | |
| 105 public ClosestSymbol closestSymbolToPC(Address pcAsAddr) throws DebuggerException { | |
| 106 boolean dso = isDSO(); | |
| 107 long offset = dso? pcAsAddr.minus(addr) : getAddressValue(pcAsAddr); | |
| 108 ELFSymbol sym = getFile().getHeader().getELFSymbol(offset); | |
| 109 return (sym != null)? createClosestSymbol(sym.getName(), offset - sym.getValue()) : null; | |
| 110 } | |
| 111 | |
| 112 public LineNumberInfo lineNumberForPC(Address pc) throws DebuggerException { | |
| 113 // FIXME: after stabs parser | |
| 114 return null; | |
| 115 } | |
| 116 | |
| 117 /** return true if file is a .so */ | |
| 118 public boolean isDSO() { | |
| 119 return dso.getValue(); | |
| 120 } | |
| 121 | |
| 122 /** Look up a symbol; returns absolute address or null if symbol was | |
| 123 not found. */ | |
| 124 public Address lookupSymbol(String symbol) throws ELFException { | |
| 125 ELFSymbol sym = getFile().getHeader().getELFSymbol(symbol); | |
| 126 if (sym == null) { | |
| 127 return null; | |
| 128 } | |
| 129 | |
| 130 long value = sym.getValue(); | |
| 131 if (isDSO()) { | |
| 132 return addr.addOffsetTo(value); | |
| 133 } else { | |
| 134 return newAddress(value); | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 public boolean equals(Object o) { | |
| 139 if (o == null || !(o instanceof DSO)) { | |
| 140 return false; | |
| 141 } | |
| 142 DSO other = (DSO)o; | |
| 143 return getBase().equals(other.getBase()); | |
| 144 } | |
| 145 | |
| 146 public int hashCode() { | |
| 147 return getBase().hashCode(); | |
| 148 } | |
| 149 | |
| 150 protected ELFFile getFile() { | |
| 151 return (ELFFile) file.getValue(); | |
| 152 } | |
| 153 | |
| 154 protected abstract Address newAddress(long addr); | |
| 155 protected abstract long getAddressValue(Address addr); | |
| 156 | |
| 157 protected ClosestSymbol createClosestSymbol(String name, long diff) { | |
| 158 return new ClosestSymbol(name, diff); | |
| 159 } | |
| 160 } |