Mercurial > hg > graal-compiler
view src/share/vm/interpreter/interpreter.hpp @ 1630:7cc68a696c62
6966252: Bump the HS19 build number to 04
Summary: Update the HS19 build number to 04
Reviewed-by: jcoomes
author | trims |
---|---|
date | Fri, 02 Jul 2010 01:37:36 -0700 |
parents | c18cbe5936b8 |
children | 126ea7725993 |
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/* * Copyright (c) 1997, 2007, 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. * */ // This file contains the platform-independent parts // of the interpreter and the interpreter generator. //------------------------------------------------------------------------------------------------------------------------ // An InterpreterCodelet is a piece of interpreter code. All // interpreter code is generated into little codelets which // contain extra information for debugging and printing purposes. class InterpreterCodelet: public Stub { friend class VMStructs; private: int _size; // the size in bytes const char* _description; // a description of the codelet, for debugging & printing Bytecodes::Code _bytecode; // associated bytecode if any public: // Initialization/finalization void initialize(int size) { _size = size; } void finalize() { ShouldNotCallThis(); } // General info/converters int size() const { return _size; } static int code_size_to_size(int code_size) { return round_to(sizeof(InterpreterCodelet), CodeEntryAlignment) + code_size; } // Code info address code_begin() const { return (address)this + round_to(sizeof(InterpreterCodelet), CodeEntryAlignment); } address code_end() const { return (address)this + size(); } // Debugging void verify(); void print(); // Interpreter-specific initialization void initialize(const char* description, Bytecodes::Code bytecode); // Interpreter-specific attributes int code_size() const { return code_end() - code_begin(); } const char* description() const { return _description; } Bytecodes::Code bytecode() const { return _bytecode; } }; // Define a prototype interface DEF_STUB_INTERFACE(InterpreterCodelet); //------------------------------------------------------------------------------------------------------------------------ // A CodeletMark serves as an automatic creator/initializer for Codelets // (As a subclass of ResourceMark it automatically GC's the allocated // code buffer and assemblers). class CodeletMark: ResourceMark { private: InterpreterCodelet* _clet; InterpreterMacroAssembler** _masm; CodeBuffer _cb; int codelet_size() { // Request the whole code buffer (minus a little for alignment). // The commit call below trims it back for each codelet. int codelet_size = AbstractInterpreter::code()->available_space() - 2*K; // Guarantee there's a little bit of code space left. guarantee (codelet_size > 0 && (size_t)codelet_size > 2*K, "not enough space for interpreter generation"); return codelet_size; } public: CodeletMark( InterpreterMacroAssembler*& masm, const char* description, Bytecodes::Code bytecode = Bytecodes::_illegal): _clet((InterpreterCodelet*)AbstractInterpreter::code()->request(codelet_size())), _cb(_clet->code_begin(), _clet->code_size()) { // request all space (add some slack for Codelet data) assert (_clet != NULL, "we checked not enough space already"); // initialize Codelet attributes _clet->initialize(description, bytecode); // create assembler for code generation masm = new InterpreterMacroAssembler(&_cb); _masm = &masm; } ~CodeletMark() { // align so printing shows nop's instead of random code at the end (Codelets are aligned) (*_masm)->align(wordSize); // make sure all code is in code buffer (*_masm)->flush(); // commit Codelet AbstractInterpreter::code()->commit((*_masm)->code()->pure_code_size()); // make sure nobody can use _masm outside a CodeletMark lifespan *_masm = NULL; } }; // Wrapper classes to produce Interpreter/InterpreterGenerator from either // the c++ interpreter or the template interpreter. class Interpreter: public CC_INTERP_ONLY(CppInterpreter) NOT_CC_INTERP(TemplateInterpreter) { public: // Debugging/printing static InterpreterCodelet* codelet_containing(address pc) { return (InterpreterCodelet*)_code->stub_containing(pc); } #include "incls/_interpreter_pd.hpp.incl" };