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_ENTRYFRAME_ZERO_HPP 27 #define CPU_ZERO_VM_ENTRYFRAME_ZERO_HPP 28 29 #include "runtime/javaCalls.hpp" 30 #include "stack_zero.hpp" 31 32 // | ... | 33 // +--------------------+ ------------------ 34 // | parameter n-1 | low addresses 35 // | ... | 36 // | parameter 0 | 37 // | call_wrapper | 38 // | frame_type | 39 // | next_frame | high addresses 40 // +--------------------+ ------------------ 41 // | ... | 42 43 class EntryFrame : public ZeroFrame { 44 private: 45 EntryFrame() : ZeroFrame() { 46 ShouldNotCallThis(); 47 } 48 49 protected: 50 enum Layout { 51 call_wrapper_off = jf_header_words, 52 header_words 53 }; 54 55 public: 56 static EntryFrame *build(const intptr_t* parameters, 57 int parameter_words, 58 JavaCallWrapper* call_wrapper, 59 TRAPS); 60 public: 61 JavaCallWrapper *call_wrapper() const { 62 return (JavaCallWrapper *) value_of_word(call_wrapper_off); 63 } 64 65 public: 66 void identify_word(int frame_index, 67 int offset, 68 char* fieldbuf, 69 char* valuebuf, 70 int buflen) const; 71 }; 72 73 #endif // CPU_ZERO_VM_ENTRYFRAME_ZERO_HPP