1 /* 2 * Copyright (c) 2003, 2013, 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 34 // We have interfaces for the following instructions: 35 // - NativeInstruction 36 // - - NativeCall 37 // - - NativeMovConstReg 38 // - - NativeMovConstRegPatching 39 // - - NativeJump 40 // - - NativeIllegalOpCode 41 // - - NativeReturn 42 // - - NativeReturnX (return with argument) 43 // - - NativePushConst 44 // - - NativeTstRegMem 45 46 // The base class for different kinds of native instruction abstractions. 47 // Provides the primitive operations to manipulate code relative to this. 48 49 class NativeInstruction { 50 public: 51 bool is_jump() { 52 ShouldNotCallThis(); 53 return false; 54 } 55 56 bool is_safepoint_poll() { 57 ShouldNotCallThis(); 58 return false; 59 } 60 }; 61 62 inline NativeInstruction* nativeInstruction_at(address address) { 63 ShouldNotCallThis(); 64 return NULL; 65 } 66 67 class NativeCall : public NativeInstruction { 68 public: 69 enum zero_specific_constants { 70 instruction_size = 0 // not used within the interpreter 71 }; 72 73 address instruction_address() const { 74 ShouldNotCallThis(); 75 return NULL; 76 } 77 78 address next_instruction_address() const { 79 ShouldNotCallThis(); 80 return NULL; 81 } 82 83 address return_address() const { 84 ShouldNotCallThis(); 85 return NULL; 86 } 87 88 address destination() const { 89 ShouldNotCallThis(); 90 return NULL; 91 } 92 93 void set_destination_mt_safe(address dest) { 94 ShouldNotCallThis(); 95 } 96 97 void verify_alignment() { 98 ShouldNotCallThis(); 99 } 100 101 void verify() { 102 ShouldNotCallThis(); 103 } 104 105 static bool is_call_before(address return_address) { 106 ShouldNotCallThis(); 107 return false; 108 } 109 }; 110 111 inline NativeCall* nativeCall_before(address return_address) { 112 ShouldNotCallThis(); 113 return NULL; 114 } 115 116 inline NativeCall* nativeCall_at(address address) { 117 ShouldNotCallThis(); 118 return NULL; 119 } 120 121 class NativeMovConstReg : public NativeInstruction { 122 public: 123 address next_instruction_address() const { 124 ShouldNotCallThis(); 125 return NULL; 126 } 127 128 intptr_t data() const { 129 ShouldNotCallThis(); 130 return 0; 131 } 132 133 void set_data(intptr_t x) { 134 ShouldNotCallThis(); 135 } 136 }; 137 138 inline NativeMovConstReg* nativeMovConstReg_at(address address) { 139 ShouldNotCallThis(); 140 return NULL; 141 } 142 143 class NativeMovRegMem : public NativeInstruction { 144 public: 145 int offset() const { 146 ShouldNotCallThis(); 147 return 0; 148 } 149 150 void set_offset(intptr_t x) { 151 ShouldNotCallThis(); 152 } 153 154 void add_offset_in_bytes(int add_offset) { 155 ShouldNotCallThis(); 156 } 157 }; 158 159 inline NativeMovRegMem* nativeMovRegMem_at(address address) { 160 ShouldNotCallThis(); 161 return NULL; 162 } 163 164 class NativeJump : public NativeInstruction { 165 public: 166 enum zero_specific_constants { 167 instruction_size = 0 // not used within the interpreter 168 }; 169 170 address jump_destination() const { 171 ShouldNotCallThis(); 172 return NULL; 173 } 174 175 void set_jump_destination(address dest) { 176 ShouldNotCallThis(); 177 } 178 179 static void check_verified_entry_alignment(address entry, 180 address verified_entry) { 181 } 182 183 static void patch_verified_entry(address entry, 184 address verified_entry, 185 address dest); 186 }; 187 188 inline NativeJump* nativeJump_at(address address) { 189 ShouldNotCallThis(); 190 return NULL; 191 } 192 193 class NativeGeneralJump : public NativeInstruction { 194 public: 195 address jump_destination() const { 196 ShouldNotCallThis(); 197 return NULL; 198 } 199 200 static void insert_unconditional(address code_pos, address entry) { 201 ShouldNotCallThis(); 202 } 203 204 static void replace_mt_safe(address instr_addr, address code_buffer) { 205 ShouldNotCallThis(); 206 } 207 }; 208 209 inline NativeGeneralJump* nativeGeneralJump_at(address address) { 210 ShouldNotCallThis(); 211 return NULL; 212 } 213 214 #endif // CPU_ZERO_VM_NATIVEINST_ZERO_HPP