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 return false; 55 } 56 57 bool is_safepoint_poll() { 58 ShouldNotCallThis(); 59 return false; 60 } 61 }; 62 63 inline NativeInstruction* nativeInstruction_at(address address) { 64 ShouldNotCallThis(); 65 return NULL; 66 } 67 68 class NativeCall : public NativeInstruction { 69 public: 70 enum zero_specific_constants { 71 instruction_size = 0 // not used within the interpreter 72 }; 73 74 address instruction_address() const { 75 ShouldNotCallThis(); 76 return NULL; 77 } 78 79 address next_instruction_address() const { 80 ShouldNotCallThis(); 81 return NULL; 82 } 83 84 address return_address() const { 85 ShouldNotCallThis(); 86 return NULL; 87 } 88 89 address destination() const { 90 ShouldNotCallThis(); 91 return NULL; 92 } 93 94 void set_destination_mt_safe(address dest) { 95 ShouldNotCallThis(); 96 } 97 98 void verify_alignment() { 99 ShouldNotCallThis(); 100 } 101 102 void verify() { 103 ShouldNotCallThis(); 104 } 105 106 static bool is_call_before(address return_address) { 107 ShouldNotCallThis(); 108 return false; 109 } 110 }; 111 112 inline NativeCall* nativeCall_before(address return_address) { 113 ShouldNotCallThis(); 114 return NULL; 115 } 116 117 inline NativeCall* nativeCall_at(address address) { 118 ShouldNotCallThis(); 119 return NULL; 120 } 121 122 class NativeMovConstReg : public NativeInstruction { 123 public: 124 address next_instruction_address() const { 125 ShouldNotCallThis(); 126 return NULL; 127 } 128 129 intptr_t data() const { 130 ShouldNotCallThis(); 131 return 0; 132 } 133 134 void set_data(intptr_t x) { 135 ShouldNotCallThis(); 136 } 137 }; 138 139 inline NativeMovConstReg* nativeMovConstReg_at(address address) { 140 ShouldNotCallThis(); 141 return NULL; 142 } 143 144 class NativeMovRegMem : public NativeInstruction { 145 public: 146 int offset() const { 147 ShouldNotCallThis(); 148 return 0; 149 } 150 151 void set_offset(intptr_t x) { 152 ShouldNotCallThis(); 153 } 154 155 void add_offset_in_bytes(int add_offset) { 156 ShouldNotCallThis(); 157 } 158 }; 159 160 inline NativeMovRegMem* nativeMovRegMem_at(address address) { 161 ShouldNotCallThis(); 162 return NULL; 163 } 164 165 class NativeJump : public NativeInstruction { 166 public: 167 enum zero_specific_constants { 168 instruction_size = 0 // not used within the interpreter 169 }; 170 171 address jump_destination() const { 172 ShouldNotCallThis(); 173 return NULL; 174 } 175 176 void set_jump_destination(address dest) { 177 ShouldNotCallThis(); 178 } 179 180 static void check_verified_entry_alignment(address entry, 181 address verified_entry) { 182 } 183 184 static void patch_verified_entry(address entry, 185 address verified_entry, 186 address dest); 187 }; 188 189 inline NativeJump* nativeJump_at(address address) { 190 ShouldNotCallThis(); 191 return NULL; 192 } 193 194 class NativeGeneralJump : public NativeInstruction { 195 public: 196 address jump_destination() const { 197 ShouldNotCallThis(); 198 return NULL; 199 } 200 201 static void insert_unconditional(address code_pos, address entry) { 202 ShouldNotCallThis(); 203 } 204 205 static void replace_mt_safe(address instr_addr, address code_buffer) { 206 ShouldNotCallThis(); 207 } 208 }; 209 210 inline NativeGeneralJump* nativeGeneralJump_at(address address) { 211 ShouldNotCallThis(); 212 return NULL; 213 } 214 215 #endif // CPU_ZERO_VM_NATIVEINST_ZERO_HPP