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annotate graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/CodeCacheProvider.java @ 6996:eec373d34caf

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added support for annotated Constants and used it to track Klass* values in Graal and register them in the metadata section of a nmethod during code installation
author Doug Simon <doug.simon@oracle.com>
date Tue, 20 Nov 2012 22:49:27 +0100
parents c162fcf45ce7
children 445193cc2a7d
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1 /*
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2 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.api.code;
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24
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25 import com.oracle.graal.api.code.CompilationResult.DataPatch;
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26 import com.oracle.graal.api.code.RuntimeCall.Descriptor;
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27 import com.oracle.graal.api.meta.*;
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29 /**
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30 * Encapsulates the main functionality of the runtime for the compiler.
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31 */
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32 public interface CodeCacheProvider extends MetaAccessProvider {
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34 /**
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35 * Adds the given compilation result as an implementation of the given method without making it the default
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36 * implementation.
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37 *
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38 * @param method a method to which the executable code is begin added
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39 * @param compResult the compilation result to be added
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40 * @param info the object into which details of the installed code will be written. Ignored if null, otherwise the
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41 * info is written to index 0 of this array.
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42 * @return a reference to the compiled and ready-to-run code
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43 */
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44 InstalledCode addMethod(ResolvedJavaMethod method, CompilationResult compResult, CodeInfo[] info);
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46 /**
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47 * Returns the size in bytes for locking information on the stack.
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48 */
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49 int getSizeOfLockData();
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50
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51 /**
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52 * Returns a disassembly of the given installed code.
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53 *
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54 * @param code the code that should be disassembled
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55 * @return a disassembly. This will be of length 0 if the runtime does not support disassembling.
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56 */
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57 String disassemble(CodeInfo code, CompilationResult tm);
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58
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59 /**
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60 * Gets the register configuration to use when compiling a given method.
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61 *
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62 * @param method the top level method of a compilation
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63 */
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64 RegisterConfig lookupRegisterConfig(JavaMethod method);
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65
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66 /**
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67 * Custom area on the stack of each compiled method that the VM can use for its own purposes.
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68 *
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69 * @return the size of the custom area in bytes
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70 */
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71 int getCustomStackAreaSize();
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72
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73 /**
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74 * Minimum size of the stack area reserved for outgoing parameters. This area is reserved in all cases, even when
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75 * the compiled method has no regular call instructions.
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76 *
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77 * @return the minimum size of the outgoing parameter area in bytes
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78 */
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79 int getMinimumOutgoingSize();
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80
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81 /**
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82 * Performs any runtime-specific conversion on the object used to describe the target of a call.
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83 */
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84 Object lookupCallTarget(Object target);
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85
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86 /**
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87 * Gets the signature and linkage information for a runtime call.
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88 */
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89 RuntimeCall lookupRuntimeCall(Descriptor descriptor);
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91 /**
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92 * Encodes a deoptimization action and a deoptimization reason in an integer value.
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93 *
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94 * @return the encoded value as an integer
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95 */
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96 int encodeDeoptActionAndReason(DeoptimizationAction action, DeoptimizationReason reason);
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98 /**
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99 * Determines if a {@link DataPatch} should be created for a given {@linkplain Constant#getPrimitiveAnnotation() annotated}
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100 * primitive constant that part of a {@link CompilationResult}. A data patch is always
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101 * created for an object constant.
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102 */
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103 boolean needsDataPatch(Constant constant);
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104 }