Mercurial > hg > truffle
view graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiRuntime.java @ 5047:6bc165b0fdcd
Added 'intro' command to mx that runs a simple 'hello world' program and visualizes its compilation in the Graal Visualizer.
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 07 Mar 2012 21:04:56 +0100 |
parents | 3c21eee8ab4d |
children | dad1ac9dba7d |
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/* * Copyright (c) 2009, 2012, 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 com.oracle.max.cri.ri; import java.lang.reflect.*; import com.oracle.max.cri.ci.*; /** * Encapsulates the main functionality of the runtime for the compiler, including access * to constant pools, OSR frames, inlining requirements, and runtime calls such as checkcast. s */ public interface RiRuntime { /** * Offset of the lock within the lock object on the stack. * Note: superseded by sizeOfLockData() in Graal. * * @return the offset in bytes */ int basicObjectLockOffsetInBytes(); /** * Get the size in bytes of a lock object on the stack. * * Note: superseded by sizeOfLockData() in Graal. */ int sizeOfBasicObjectLock(); /** * Get the size in bytes for locking information on the stack. */ int sizeOfLockData(); /** * The offset of the normal entry to the code. The compiler inserts NOP instructions to satisfy this constraint. * * @return the code offset in bytes */ int codeOffset(); /** * Returns the disassembly of the given code bytes. Used for debugging purposes only. * * @param code the code bytes that should be disassembled * @param address an address at which the bytes are located. This can be used for an address prefix per line of disassembly. * @return the disassembly. This will be of length 0 if the runtime does not support disassembling. */ String disassemble(byte[] code, long address); /** * Returns the disassembly of the given code bytes. Used for debugging purposes only. * * @param targetMethod the {@link CiTargetMethod} containing the code bytes that should be disassembled * @return the disassembly. This will be of length 0 if the runtime does not support disassembling. */ String disassemble(CiTargetMethod targetMethod); /** * Returns the disassembly of the given method in a {@code javap}-like format. * Used for debugging purposes only. * * @param method the method that should be disassembled * @return the disassembly. This will be of length 0 if the runtime does not support disassembling. */ String disassemble(RiResolvedMethod method); /** * Registers the given compiler stub and returns an object that can be used to identify it in the relocation * information. * * @param targetMethod the target method representing the code of the compiler stub * @param name the name of the stub, used for debugging purposes only * @return the identification object */ Object registerCompilerStub(CiTargetMethod targetMethod, String name); /** * Returns the RiType object representing the base type for the given kind. */ RiResolvedType asRiType(CiKind kind); /** * Returns the type of the given constant object. * * @return {@code null} if {@code constant.isNull() || !constant.kind.isObject()} */ RiResolvedType getTypeOf(CiConstant constant); RiResolvedType getType(Class<?> clazz); /** * Returns true if the given type is a subtype of java/lang/Throwable. */ boolean isExceptionType(RiResolvedType type); /** * Used by the canonicalizer to compare objects, since a given runtime might not want to expose the real objects to the compiler. * * @return true if the two parameters represent the same runtime object, false otherwise */ boolean areConstantObjectsEqual(CiConstant x, CiConstant y); /** * Gets the register configuration to use when compiling a given method. * * @param method the top level method of a compilation */ RiRegisterConfig getRegisterConfig(RiMethod method); RiRegisterConfig getGlobalStubRegisterConfig(); /** * Custom area on the stack of each compiled method that the VM can use for its own purposes. * @return the size of the custom area in bytes */ int getCustomStackAreaSize(); /** * Minimum size of the stack area reserved for outgoing parameters. This area is reserved in all cases, even when * the compiled method has no regular call instructions. * @return the minimum size of the outgoing parameter area in bytes */ int getMinimumOutgoingSize(); /** * Gets the length of the array that is wrapped in a CiConstant object. */ int getArrayLength(CiConstant array); /** * Converts the given CiConstant object to a object. * * @return {@code null} if the conversion is not possible <b>OR</b> {@code c.isNull() == true} */ Object asJavaObject(CiConstant c); /** * Converts the given CiConstant object to a {@link Class} object. * * @return {@code null} if the conversion is not possible. */ Class<?> asJavaClass(CiConstant c); /** * Performs any runtime-specific conversion on the object used to describe the target of a call. */ Object asCallTarget(Object target); /** * Returns the maximum absolute offset of a runtime call target from any position in the code cache or -1 * when not known or not applicable. Intended for determining the required size of address/offset fields. */ long getMaxCallTargetOffset(CiRuntimeCall rtcall); /** * Provides the {@link RiMethod} for a {@link Method} obtained via reflection. */ RiResolvedMethod getRiMethod(Method reflectionMethod); /** * Installs some given machine code as the implementation of a given method. * * @param method a method whose executable code is being modified * @param code the code to be executed when {@code method} is called */ void installMethod(RiResolvedMethod method, CiTargetMethod code); /** * Adds the given machine code as an implementation of the given method without making it the default implementation. * @param method a method to which the executable code is begin added * @param code the code to be added * @return a reference to the compiled and ready-to-run code */ RiCompiledMethod addMethod(RiResolvedMethod method, CiTargetMethod code); }