1 /* 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2007 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_NATIVEINST_ZERO_HPP 27 #define CPU_ZERO_VM_NATIVEINST_ZERO_HPP 28 29 #include "asm/assembler.hpp" 30 #include "memory/allocation.hpp" 31 #include "runtime/icache.hpp" 32 #include "runtime/os.hpp" 33 #include "utilities/top.hpp" 34 35 // We have interfaces for the following instructions: 36 // - NativeInstruction 37 // - - NativeCall 38 // - - NativeMovConstReg 39 // - - NativeMovConstRegPatching 40 // - - NativeJump 41 // - - NativeIllegalOpCode 42 // - - NativeReturn 43 // - - NativeReturnX (return with argument) 44 // - - NativePushConst 45 // - - NativeTstRegMem 46 47 // The base class for different kinds of native instruction abstractions. 48 // Provides the primitive operations to manipulate code relative to this. 49 50 class NativeInstruction VALUE_OBJ_CLASS_SPEC { 51 public: 52 bool is_jump() { 53 ShouldNotCallThis(); 54 } 55 56 bool is_safepoint_poll() { 57 ShouldNotCallThis(); 58 } 59 }; 60 61 inline NativeInstruction* nativeInstruction_at(address address) { 62 ShouldNotCallThis(); 63 } 64 65 class NativeCall : public NativeInstruction { 66 public: 67 enum zero_specific_constants { 68 instruction_size = 0 // not used within the interpreter 69 }; 70 71 address instruction_address() const { 72 ShouldNotCallThis(); 73 } 74 75 address next_instruction_address() const { 76 ShouldNotCallThis(); 77 } 78 79 address return_address() const { 80 ShouldNotCallThis(); 81 } 82 83 address destination() const { 84 ShouldNotCallThis(); 85 } 86 87 void set_destination_mt_safe(address dest) { 88 ShouldNotCallThis(); 89 } 90 91 void verify_alignment() { 92 ShouldNotCallThis(); 93 } 94 95 void verify() { 96 ShouldNotCallThis(); 97 } 98 99 static bool is_call_before(address return_address) { 100 ShouldNotCallThis(); 101 } 102 }; 103 104 inline NativeCall* nativeCall_before(address return_address) { 105 ShouldNotCallThis(); 106 } 107 108 inline NativeCall* nativeCall_at(address address) { 109 ShouldNotCallThis(); 110 } 111 112 class NativeMovConstReg : public NativeInstruction { 113 public: 114 address next_instruction_address() const { 115 ShouldNotCallThis(); 116 } 117 118 intptr_t data() const { 119 ShouldNotCallThis(); 120 } 121 122 void set_data(intptr_t x) { 123 ShouldNotCallThis(); 124 } 125 }; 126 127 inline NativeMovConstReg* nativeMovConstReg_at(address address) { 128 ShouldNotCallThis(); 129 } 130 131 class NativeMovRegMem : public NativeInstruction { 132 public: 133 int offset() const { 134 ShouldNotCallThis(); 135 } 136 137 void set_offset(intptr_t x) { 138 ShouldNotCallThis(); 139 } 140 141 void add_offset_in_bytes(int add_offset) { 142 ShouldNotCallThis(); 143 } 144 }; 145 146 inline NativeMovRegMem* nativeMovRegMem_at(address address) { 147 ShouldNotCallThis(); 148 } 149 150 class NativeJump : public NativeInstruction { 151 public: 152 enum zero_specific_constants { 153 instruction_size = 0 // not used within the interpreter 154 }; 155 156 address jump_destination() const { 157 ShouldNotCallThis(); 158 } 159 160 void set_jump_destination(address dest) { 161 ShouldNotCallThis(); 162 } 163 164 static void check_verified_entry_alignment(address entry, 165 address verified_entry) { 166 } 167 168 static void patch_verified_entry(address entry, 169 address verified_entry, 170 address dest); 171 }; 172 173 inline NativeJump* nativeJump_at(address address) { 174 ShouldNotCallThis(); 175 } 176 177 class NativeGeneralJump : public NativeInstruction { 178 public: 179 address jump_destination() const { 180 ShouldNotCallThis(); 181 } 182 183 static void insert_unconditional(address code_pos, address entry) { 184 ShouldNotCallThis(); 185 } 186 187 static void replace_mt_safe(address instr_addr, address code_buffer) { 188 ShouldNotCallThis(); 189 } 190 }; 191 192 inline NativeGeneralJump* nativeGeneralJump_at(address address) { 193 ShouldNotCallThis(); 194 } 195 196 #endif // CPU_ZERO_VM_NATIVEINST_ZERO_HPP