1 /* 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2008, 2010 Red Hat, Inc. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #ifndef CPU_ZERO_VM_INTERPRETERFRAME_ZERO_HPP 27 #define CPU_ZERO_VM_INTERPRETERFRAME_ZERO_HPP 28 29 #include "interpreter/bytecodeInterpreter.hpp" 30 #include "oops/methodOop.hpp" 31 #include "runtime/thread.hpp" 32 33 #ifdef CC_INTERP 34 // | ... | 35 // +--------------------+ ------------------ 36 // | stack slot n-1 | low addresses 37 // | ... | 38 // | stack slot 0 | 39 // | monitor 0 (maybe) | 40 // | ... | 41 // | interpreter state | 42 // | ... | 43 // | frame_type | 44 // | next_frame | high addresses 45 // +--------------------+ ------------------ 46 // | ... | 47 48 class InterpreterFrame : public ZeroFrame { 49 friend class AbstractInterpreter; 50 51 private: 52 InterpreterFrame() : ZeroFrame() { 53 ShouldNotCallThis(); 54 } 55 56 protected: 57 enum Layout { 58 istate_off = jf_header_words + 59 (align_size_up_(sizeof(BytecodeInterpreter), 60 wordSize) >> LogBytesPerWord) - 1, 61 header_words 62 }; 63 64 public: 65 static InterpreterFrame *build(const methodOop method, TRAPS); 66 static InterpreterFrame *build(int size, TRAPS); 67 68 public: 69 interpreterState interpreter_state() const { 70 return (interpreterState) addr_of_word(istate_off); 71 } 72 73 public: 74 void identify_word(int frame_index, 75 int offset, 76 char* fieldbuf, 77 char* valuebuf, 78 int buflen) const; 79 }; 80 #endif // CC_INTERP 81 82 #endif // CPU_ZERO_VM_INTERPRETERFRAME_ZERO_HPP