1 /*
   2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP
  26 #define SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP
  27 
  28 #include "interpreter/abstractInterpreter.hpp"
  29 
  30 #ifdef CC_INTERP
  31 
  32 // This file contains the platform-independent parts
  33 // of the c++ interpreter
  34 
  35 class CppInterpreter: public AbstractInterpreter {
  36   friend class VMStructs;
  37   friend class Interpreter; // contains()
  38   friend class InterpreterGenerator; // result handlers
  39   friend class CppInterpreterGenerator; // result handlers
  40  public:
  41 
  42 
  43  protected:
  44 
  45   // tosca result -> stack result
  46   static address    _tosca_to_stack[number_of_result_handlers];  // converts tosca to C++ interpreter stack result
  47   // stack result -> stack result
  48   static address    _stack_to_stack[number_of_result_handlers];  // pass result between C++ interpreter calls
  49   // stack result -> native abi result
  50   static address    _stack_to_native_abi[number_of_result_handlers];  // converts C++ interpreter results to native abi
  51 
  52   // this is to allow frame and only frame to use contains().
  53   friend class      frame;
  54 
  55  public:
  56   // Initialization/debugging
  57   static void       initialize();
  58   // this only returns whether a pc is within generated code for the interpreter.
  59 
  60   // This is a moderately dubious interface for the c++ interpreter. Only
  61   // frame code and debug.cpp should be using it.
  62   static bool       contains(address pc);
  63 
  64  public:
  65 
  66 
  67   // No displatch table to switch so no need for these to do anything special
  68   static void notice_safepoints() {}
  69   static void ignore_safepoints() {}
  70 
  71   static address    native_result_to_tosca()                    { return (address)_native_abi_to_tosca; } // aka result handler
  72   static address    tosca_result_to_stack()                     { return (address)_tosca_to_stack; }
  73   static address    stack_result_to_stack()                     { return (address)_stack_to_stack; }
  74   static address    stack_result_to_native()                    { return (address)_stack_to_native_abi; }
  75 
  76   static address    native_result_to_tosca(int index)           { return _native_abi_to_tosca[index]; } // aka result handler
  77   static address    tosca_result_to_stack(int index)            { return _tosca_to_stack[index]; }
  78   static address    stack_result_to_stack(int index)            { return _stack_to_stack[index]; }
  79   static address    stack_result_to_native(int index)           { return _stack_to_native_abi[index]; }
  80 
  81   static address    return_entry  (TosState state, int length, Bytecodes::Code code);
  82   static address    deopt_entry   (TosState state, int length);
  83 
  84 #ifdef TARGET_ARCH_x86
  85 # include "cppInterpreter_x86.hpp"
  86 #endif
  87 #ifdef TARGET_ARCH_sparc
  88 # include "cppInterpreter_sparc.hpp"
  89 #endif
  90 #ifdef TARGET_ARCH_zero
  91 # include "cppInterpreter_zero.hpp"
  92 #endif
  93 #ifdef TARGET_ARCH_arm
  94 # include "cppInterpreter_arm.hpp"
  95 #endif
  96 #ifdef TARGET_ARCH_ppc
  97 # include "cppInterpreter_ppc.hpp"
  98 #endif
  99 #ifdef TARGET_ARCH_aarch32
 100 # include "cppInterpreter_aarch32.hpp"
 101 #endif
 102 
 103 
 104 };
 105 
 106 #endif // CC_INTERP
 107 
 108 #endif // SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP