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comparison jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotSymbol.java @ 23336:90da61843aa4

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Backout removal of HotSpotVMSymbols class.
author Roland Schatz <roland.schatz@oracle.com>
date Fri, 25 Mar 2016 12:40:19 +0100
parents f8178417d018
children
comparison
equal deleted inserted replaced
23335:a2a044987816 23336:90da61843aa4
1 /* 1 /*
2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
20 * or visit www.oracle.com if you need additional information or have any 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 */ 22 */
23 package jdk.vm.ci.hotspot; 23 package jdk.vm.ci.hotspot;
24 24
25 import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
26 import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
27
28 import jdk.vm.ci.meta.Constant; 25 import jdk.vm.ci.meta.Constant;
29 import sun.misc.Unsafe;
30 26
31 /** 27 /**
32 * Class to access the C++ {@code vmSymbols} table. 28 * Class to access the C++ {@code vmSymbols} table.
33 */ 29 */
34 public final class HotSpotSymbol implements MetaspaceWrapperObject { 30 public final class HotSpotSymbol implements MetaspaceWrapperObject {
56 52
57 @Override 53 @Override
58 public String toString() { 54 public String toString() {
59 return "Symbol<" + symbol + ">"; 55 return "Symbol<" + symbol + ">";
60 } 56 }
61
62 /**
63 * Returns the symbol in the {@code vmSymbols} table at position {@code index} as {@link String}
64 * .
65 *
66 * @param index position in the symbol table
67 * @return the symbol at position id
68 */
69 static String symbolAt(int index) {
70 HotSpotJVMCIRuntimeProvider runtime = runtime();
71 HotSpotVMConfig config = runtime.getConfig();
72 assert config.vmSymbolsFirstSID <= index && index < config.vmSymbolsSIDLimit : "index " + index + " is out of bounds";
73 assert config.symbolPointerSize == Unsafe.ADDRESS_SIZE : "the following address read is broken";
74 return runtime.getCompilerToVM().getSymbol(UNSAFE.getAddress(config.vmSymbolsSymbols + index * config.symbolPointerSize));
75 }
76 } 57 }