1 /* 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 /* 26 * This is to provide sanity check in jhelper.d which compares SCCS 27 * versions of generateJvmOffsets.cpp used to create and extract 28 * contents of __JvmOffsets[] table. 29 * The __JvmOffsets[] table is located in generated JvmOffsets.cpp. 30 * 31 * GENOFFS_SCCS_VER 34 32 */ 33 34 #include "generateJvmOffsets.h" 35 36 /* A workaround for private and protected fields */ 37 #define private public 38 #define protected public 39 40 #include <proc_service.h> 41 #include "code/codeBlob.hpp" 42 #include "code/nmethod.hpp" 43 #include "code/pcDesc.hpp" 44 #include "gc_interface/collectedHeap.hpp" 45 #include "memory/heap.hpp" 46 #include "memory/memRegion.hpp" 47 #include "memory/universe.hpp" 48 #include "oops/constMethod.hpp" 49 #include "oops/klass.hpp" 50 #include "oops/method.hpp" 51 #include "oops/oop.hpp" 52 #include "oops/symbol.hpp" 53 #include "runtime/virtualspace.hpp" 54 #include "runtime/vmStructs.hpp" 55 #include "utilities/accessFlags.hpp" 56 #include "utilities/globalDefinitions.hpp" 57 #ifdef COMPILER1 58 #ifdef ASSERT 59 60 /* 61 * To avoid the most part of potential link errors 62 * we link this program with -z nodefs . 63 * 64 * But for 'debug1' and 'fastdebug1' we still have to provide 65 * a particular workaround for the following symbols below. 66 * It will be good to find out a generic way in the future. 67 */ 68 69 #pragma weak tty 70 #pragma weak CMSExpAvgFactor 71 72 #if defined(i386) || defined(__i386) || defined(__amd64) 73 #pragma weak noreg 74 #endif /* i386 */ 75 76 LIR_Opr LIR_OprFact::illegalOpr = (LIR_Opr) 0; 77 78 address StubRoutines::_call_stub_return_address = NULL; 79 80 StubQueue* AbstractInterpreter::_code = NULL; 81 82 #endif /* ASSERT */ 83 #endif /* COMPILER1 */ 84 85 #define GEN_OFFS_NAME(Type,Name,OutputType) \ 86 switch(gen_variant) { \ 87 case GEN_OFFSET: \ 88 printf("#define OFFSET_%-33s %d\n", \ 89 #OutputType #Name, offset_of(Type, Name)); \ 90 break; \ 91 case GEN_INDEX: \ 92 printf("#define IDX_OFFSET_%-33s %d\n", \ 93 #OutputType #Name, index++); \ 94 break; \ 95 case GEN_TABLE: \ 96 printf("\tOFFSET_%s,\n", #OutputType #Name); \ 97 break; \ 98 } 99 100 #define GEN_OFFS(Type,Name) \ 101 GEN_OFFS_NAME(Type,Name,Type) 102 103 #define GEN_SIZE(Type) \ 104 switch(gen_variant) { \ 105 case GEN_OFFSET: \ 106 printf("#define SIZE_%-35s %d\n", \ 107 #Type, sizeof(Type)); \ 108 break; \ 109 case GEN_INDEX: \ 110 printf("#define IDX_SIZE_%-35s %d\n", \ 111 #Type, index++); \ 112 break; \ 113 case GEN_TABLE: \ 114 printf("\tSIZE_%s,\n", #Type); \ 115 break; \ 116 } 117 118 #define GEN_VALUE(String,Value) \ 119 switch(gen_variant) { \ 120 case GEN_OFFSET: \ 121 printf("#define %-40s %d\n", #String, Value); \ 122 break; \ 123 case GEN_INDEX: \ 124 printf("#define IDX_%-40s %d\n", #String, index++); \ 125 break; \ 126 case GEN_TABLE: \ 127 printf("\t" #String ",\n"); \ 128 break; \ 129 } 130 131 void gen_prologue(GEN_variant gen_variant) { 132 const char *suffix; 133 134 switch(gen_variant) { 135 case GEN_OFFSET: suffix = ".h"; break; 136 case GEN_INDEX: suffix = "Index.h"; break; 137 case GEN_TABLE: suffix = ".cpp"; break; 138 } 139 140 printf("/*\n"); 141 printf(" * JvmOffsets%s !!!DO NOT EDIT!!! \n", suffix); 142 printf(" * The generateJvmOffsets program generates this file!\n"); 143 printf(" */\n\n"); 144 switch(gen_variant) { 145 146 case GEN_OFFSET: 147 case GEN_INDEX: 148 break; 149 150 case GEN_TABLE: 151 printf("#include \"JvmOffsets.h\"\n"); 152 printf("\n"); 153 printf("int __JvmOffsets[] = {\n"); 154 break; 155 } 156 } 157 158 void gen_epilogue(GEN_variant gen_variant) { 159 if (gen_variant != GEN_TABLE) { 160 return; 161 } 162 printf("};\n\n"); 163 return; 164 } 165 166 int generateJvmOffsets(GEN_variant gen_variant) { 167 int index = 0; /* It is used to generate JvmOffsetsIndex.h */ 168 int pointer_size = sizeof(void *); 169 int data_model = (pointer_size == 4) ? PR_MODEL_ILP32 : PR_MODEL_LP64; 170 171 gen_prologue(gen_variant); 172 173 GEN_VALUE(DATA_MODEL, data_model); 174 GEN_VALUE(POINTER_SIZE, pointer_size); 175 #if defined(TIERED) 176 GEN_VALUE(COMPILER, 3); 177 #elif COMPILER1 178 GEN_VALUE(COMPILER, 1); 179 #elif COMPILER2 180 GEN_VALUE(COMPILER, 2); 181 #else 182 GEN_VALUE(COMPILER, 0); 183 #endif // COMPILER1 && COMPILER2 184 printf("\n"); 185 186 GEN_OFFS(CollectedHeap, _reserved); 187 GEN_OFFS(MemRegion, _start); 188 GEN_OFFS(MemRegion, _word_size); 189 GEN_SIZE(HeapWord); 190 printf("\n"); 191 192 GEN_OFFS(VMStructEntry, typeName); 193 GEN_OFFS(VMStructEntry, fieldName); 194 GEN_OFFS(VMStructEntry, address); 195 GEN_SIZE(VMStructEntry); 196 printf("\n"); 197 198 GEN_VALUE(MAX_METHOD_CODE_SIZE, max_method_code_size); 199 #if defined(sparc) || defined(__sparc) 200 GEN_VALUE(OFFSET_interpreter_frame_method, 2 * pointer_size); /* L2 in saved window */ 201 GEN_VALUE(OFFSET_interpreter_frame_sender_sp, 13 * pointer_size); /* I5 in saved window */ 202 // Fake value for consistency. It is not going to be used. 203 GEN_VALUE(OFFSET_interpreter_frame_bcx_offset, 0xFFFF); 204 #elif defined(i386) || defined(__i386) || defined(__amd64) 205 GEN_VALUE(OFFSET_interpreter_frame_sender_sp, -1 * pointer_size); 206 GEN_VALUE(OFFSET_interpreter_frame_method, -3 * pointer_size); 207 GEN_VALUE(OFFSET_interpreter_frame_bcx_offset, -7 * pointer_size); 208 #endif 209 210 GEN_OFFS(Klass, _name); 211 GEN_OFFS(ConstantPool, _pool_holder); 212 printf("\n"); 213 214 GEN_VALUE(OFFSET_HeapBlockHeader_used, offset_of(HeapBlock::Header, _used)); 215 GEN_OFFS(oopDesc, _metadata); 216 printf("\n"); 217 218 GEN_VALUE(AccessFlags_NATIVE, JVM_ACC_NATIVE); 219 GEN_VALUE(ConstMethod_has_linenumber_table, ConstMethod::_has_linenumber_table); 220 GEN_OFFS(AccessFlags, _flags); 221 GEN_OFFS(Symbol, _length); 222 GEN_OFFS(Symbol, _body); 223 printf("\n"); 224 225 GEN_OFFS(Method, _constMethod); 226 GEN_OFFS(Method, _access_flags); 227 printf("\n"); 228 229 GEN_OFFS(ConstMethod, _constants); 230 GEN_OFFS(ConstMethod, _flags); 231 GEN_OFFS(ConstMethod, _code_size); 232 GEN_OFFS(ConstMethod, _name_index); 233 GEN_OFFS(ConstMethod, _signature_index); 234 printf("\n"); 235 236 GEN_OFFS(CodeHeap, _memory); 237 GEN_OFFS(CodeHeap, _segmap); 238 GEN_OFFS(CodeHeap, _log2_segment_size); 239 printf("\n"); 240 241 GEN_OFFS(VirtualSpace, _low_boundary); 242 GEN_OFFS(VirtualSpace, _high_boundary); 243 GEN_OFFS(VirtualSpace, _low); 244 GEN_OFFS(VirtualSpace, _high); 245 printf("\n"); 246 247 /* We need to use different names here because of the template parameter */ 248 GEN_OFFS_NAME(GrowableArray<CodeHeap*>, _data, GrowableArray_CodeHeap); 249 GEN_OFFS_NAME(GrowableArray<CodeHeap*>, _len, GrowableArray_CodeHeap); 250 printf("\n"); 251 252 GEN_OFFS(CodeBlob, _name); 253 GEN_OFFS(CodeBlob, _header_size); 254 GEN_OFFS(CodeBlob, _content_offset); 255 GEN_OFFS(CodeBlob, _code_offset); 256 GEN_OFFS(CodeBlob, _data_offset); 257 GEN_OFFS(CodeBlob, _frame_size); 258 printf("\n"); 259 260 GEN_OFFS(nmethod, _method); 261 GEN_OFFS(nmethod, _metadata_offset); 262 GEN_OFFS(nmethod, _scopes_data_offset); 263 GEN_OFFS(nmethod, _scopes_pcs_offset); 264 GEN_OFFS(nmethod, _handler_table_offset); 265 GEN_OFFS(nmethod, _deoptimize_offset); 266 GEN_OFFS(nmethod, _orig_pc_offset); 267 268 GEN_OFFS(PcDesc, _pc_offset); 269 GEN_OFFS(PcDesc, _scope_decode_offset); 270 271 printf("\n"); 272 273 GEN_OFFS(NarrowPtrStruct, _base); 274 GEN_OFFS(NarrowPtrStruct, _shift); 275 printf("\n"); 276 277 GEN_VALUE(SIZE_HeapBlockHeader, sizeof(HeapBlock::Header)); 278 GEN_SIZE(oopDesc); 279 GEN_SIZE(ConstantPool); 280 printf("\n"); 281 282 GEN_SIZE(PcDesc); 283 GEN_SIZE(Method); 284 GEN_SIZE(ConstMethod); 285 GEN_SIZE(nmethod); 286 GEN_SIZE(CodeBlob); 287 GEN_SIZE(BufferBlob); 288 GEN_SIZE(SingletonBlob); 289 GEN_SIZE(RuntimeStub); 290 GEN_SIZE(SafepointBlob); 291 292 gen_epilogue(gen_variant); 293 printf("\n"); 294 295 fflush(stdout); 296 return 0; 297 }