1 /* 2 * Copyright (c) 2003, 2012, 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/method.hpp" 31 #include "runtime/thread.hpp" 32 #include "stack_zero.hpp" 33 34 #ifdef CC_INTERP 35 // | ... | 36 // +--------------------+ ------------------ 37 // | stack slot n-1 | low addresses 38 // | ... | 39 // | stack slot 0 | 40 // | monitor 0 (maybe) | 41 // | ... | 42 // | interpreter state | 43 // | ... | 44 // | frame_type | 45 // | next_frame | high addresses 46 // +--------------------+ ------------------ 47 // | ... | 48 49 class InterpreterFrame : public ZeroFrame { 50 friend class AbstractInterpreter; 51 52 private: 53 InterpreterFrame() : ZeroFrame() { 54 ShouldNotCallThis(); 55 } 56 57 protected: 58 enum Layout { 59 istate_off = jf_header_words + 60 (align_up_(sizeof(BytecodeInterpreter), 61 wordSize) >> LogBytesPerWord) - 1, 62 header_words 63 }; 64 65 public: 66 static InterpreterFrame *build(Method* const method, TRAPS); 67 static InterpreterFrame *build(int size, TRAPS); 68 69 public: 70 interpreterState interpreter_state() const { 71 return (interpreterState) addr_of_word(istate_off); 72 } 73 74 public: 75 void identify_word(int frame_index, 76 int offset, 77 char* fieldbuf, 78 char* valuebuf, 79 int buflen) const; 80 }; 81 #endif // CC_INTERP 82 83 #endif // CPU_ZERO_VM_INTERPRETERFRAME_ZERO_HPP