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comparison jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotVmSymbols.java @ 22487:a0e5714d5436

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Remove Java implementation of HotSpotConstantPool Cache and ResolvedReferences and HotSpotSymbol.
author twisti
date Fri, 28 Aug 2015 12:42:06 -1000
parents 179db500f6e5
children d2035d841611
comparison
equal deleted inserted replaced
22486:6292599feb75 22487:a0e5714d5436
1 /* 1 /*
2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2014, 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.
22 */ 22 */
23 package jdk.internal.jvmci.hotspot; 23 package jdk.internal.jvmci.hotspot;
24 24
25 import static jdk.internal.jvmci.common.UnsafeAccess.*; 25 import static jdk.internal.jvmci.common.UnsafeAccess.*;
26 import static jdk.internal.jvmci.hotspot.HotSpotJVMCIRuntime.*; 26 import static jdk.internal.jvmci.hotspot.HotSpotJVMCIRuntime.*;
27
28 import jdk.internal.jvmci.common.*;
29 import sun.misc.*; 27 import sun.misc.*;
30 28
31 /** 29 /**
32 * Class to access the C++ {@code vmSymbols} table. 30 * Class to access the C++ {@code vmSymbols} table.
33 */ 31 */
43 public static String symbolAt(int index) { 41 public static String symbolAt(int index) {
44 HotSpotJVMCIRuntimeProvider runtime = runtime(); 42 HotSpotJVMCIRuntimeProvider runtime = runtime();
45 HotSpotVMConfig config = runtime.getConfig(); 43 HotSpotVMConfig config = runtime.getConfig();
46 assert config.vmSymbolsFirstSID <= index && index < config.vmSymbolsSIDLimit : "index " + index + " is out of bounds"; 44 assert config.vmSymbolsFirstSID <= index && index < config.vmSymbolsSIDLimit : "index " + index + " is out of bounds";
47 assert config.symbolPointerSize == Unsafe.ADDRESS_SIZE : "the following address read is broken"; 45 assert config.symbolPointerSize == Unsafe.ADDRESS_SIZE : "the following address read is broken";
48 final long metaspaceSymbol = unsafe.getAddress(config.vmSymbolsSymbols + index * config.symbolPointerSize); 46 return runtime.getCompilerToVM().getSymbol(unsafe.getAddress(config.vmSymbolsSymbols + index * config.symbolPointerSize));
49 if (HotSpotConstantPool.Options.UseConstantPoolCacheJavaCode.getValue()) {
50 HotSpotSymbol symbol = new HotSpotSymbol(metaspaceSymbol);
51 String s = symbol.asString();
52 // It shouldn't but just in case something went wrong...
53 if (s == null) {
54 throw JVMCIError.shouldNotReachHere("malformed UTF-8 string in constant pool");
55 }
56 return s;
57 } else {
58 return runtime.getCompilerToVM().getSymbol(metaspaceSymbol);
59 }
60 } 47 }
61 } 48 }