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1 /*
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2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #ifdef CC_INTERP
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26
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605
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27 // This file contains the platform-independent parts
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28 // of the c++ interpreter
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29
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30 class CppInterpreter: public AbstractInterpreter {
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31 friend class VMStructs;
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32 friend class Interpreter; // contains()
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33 friend class InterpreterGenerator; // result handlers
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34 friend class CppInterpreterGenerator; // result handlers
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35 public:
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36
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37
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38 protected:
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39
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40 // tosca result -> stack result
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41 static address _tosca_to_stack[number_of_result_handlers]; // converts tosca to C++ interpreter stack result
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42 // stack result -> stack result
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43 static address _stack_to_stack[number_of_result_handlers]; // pass result between C++ interpreter calls
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44 // stack result -> native abi result
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45 static address _stack_to_native_abi[number_of_result_handlers]; // converts C++ interpreter results to native abi
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46
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47 // this is to allow frame and only frame to use contains().
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48 friend class frame;
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49
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50 public:
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51 // Initialization/debugging
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52 static void initialize();
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53 // this only returns whether a pc is within generated code for the interpreter.
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54
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55 // This is a moderately dubious interface for the c++ interpreter. Only
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56 // frame code and debug.cpp should be using it.
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57 static bool contains(address pc);
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58
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59 public:
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60
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61
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62 // No displatch table to switch so no need for these to do anything special
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63 static void notice_safepoints() {}
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64 static void ignore_safepoints() {}
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65
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66 static address native_result_to_tosca() { return (address)_native_abi_to_tosca; } // aka result handler
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67 static address tosca_result_to_stack() { return (address)_tosca_to_stack; }
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68 static address stack_result_to_stack() { return (address)_stack_to_stack; }
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69 static address stack_result_to_native() { return (address)_stack_to_native_abi; }
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70
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71 static address native_result_to_tosca(int index) { return _native_abi_to_tosca[index]; } // aka result handler
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72 static address tosca_result_to_stack(int index) { return _tosca_to_stack[index]; }
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73 static address stack_result_to_stack(int index) { return _stack_to_stack[index]; }
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74 static address stack_result_to_native(int index) { return _stack_to_native_abi[index]; }
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75
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76 static address return_entry (TosState state, int length);
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77 static address deopt_entry (TosState state, int length);
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78
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79 #include "incls/_cppInterpreter_pd.hpp.incl"
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80
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81 };
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82
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83 #endif // CC_INTERP
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