1/* 2 * Copyright (c) 2001, 2016, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26// classfile constants 27#define JAVA_MAGIC 0xCAFEBABE 28 29// Class version history, refer to Constants.java 30 31// package file constants 32#define JAVA_PACKAGE_MAGIC 0xCAFED00D 33#define JAVA5_PACKAGE_MAJOR_VERSION 150 34#define JAVA5_PACKAGE_MINOR_VERSION 7 35 36#define JAVA6_PACKAGE_MAJOR_VERSION 160 37#define JAVA6_PACKAGE_MINOR_VERSION 1 38 39#define JAVA7_PACKAGE_MAJOR_VERSION 170 40#define JAVA7_PACKAGE_MINOR_VERSION 1 41 42#define JAVA8_PACKAGE_MAJOR_VERSION 171 43#define JAVA8_PACKAGE_MINOR_VERSION 0 44 45// magic number for gzip streams (for processing pack200-gzip data) 46#define GZIP_MAGIC 0x1F8B0800 47#define GZIP_MAGIC_MASK 0xFFFFFF00 // last byte is variable "flg" field 48 49enum { 50 CONSTANT_None = 0, 51 CONSTANT_Utf8 = 1, 52 CONSTANT_unused = 2, /* unused, was Unicode */ 53 CONSTANT_Integer = 3, 54 CONSTANT_Float = 4, 55 CONSTANT_Long = 5, 56 CONSTANT_Double = 6, 57 CONSTANT_Class = 7, 58 CONSTANT_String = 8, 59 CONSTANT_Fieldref = 9, 60 CONSTANT_Methodref = 10, 61 CONSTANT_InterfaceMethodref = 11, 62 CONSTANT_NameandType = 12, 63 CONSTANT_unused13 = 13, 64 CONSTANT_unused14 = 14, 65 CONSTANT_MethodHandle = 15, 66 CONSTANT_MethodType = 16, 67 CONSTANT_unused17 = 17, 68 CONSTANT_InvokeDynamic = 18, 69 CONSTANT_Limit = 19, 70 CONSTANT_Signature = CONSTANT_unused13, 71 CONSTANT_BootstrapMethod = CONSTANT_unused17, // used only for InvokeDynamic 72 CONSTANT_All = 50, // combined global map 73 CONSTANT_LoadableValue = 51, // used for 'KL' and qldc operands 74 CONSTANT_AnyMember = 52, // union of refs to field or (interface) method 75 CONSTANT_FieldSpecific = 53, // used only for 'KQ' ConstantValue attrs 76 CONSTANT_GroupFirst = CONSTANT_All, // start group marker 77 CONSTANT_GroupLimit = 54, // end group marker 78 79 // CONSTANT_MethodHandle reference kinds 80 REF_getField = 1, 81 REF_getStatic = 2, 82 REF_putField = 3, 83 REF_putStatic = 4, 84 REF_invokeVirtual = 5, 85 REF_invokeStatic = 6, 86 REF_invokeSpecial = 7, 87 REF_newInvokeSpecial = 8, 88 REF_invokeInterface = 9, 89 90 SUBINDEX_BIT = 64, // combined with CONSTANT_xxx for ixTag 91 92 ACC_STATIC = 0x0008, 93 ACC_IC_LONG_FORM = (1<<16), //for ic_flags 94 95 CLASS_ATTR_SourceFile = 17, 96 CLASS_ATTR_EnclosingMethod = 18, 97 CLASS_ATTR_InnerClasses = 23, 98 CLASS_ATTR_ClassFile_version = 24, 99 CLASS_ATTR_BootstrapMethods = 25, 100 FIELD_ATTR_ConstantValue = 17, 101 METHOD_ATTR_Code = 17, 102 METHOD_ATTR_Exceptions = 18, 103 METHOD_ATTR_RuntimeVisibleParameterAnnotations = 23, 104 METHOD_ATTR_RuntimeInvisibleParameterAnnotations = 24, 105 METHOD_ATTR_AnnotationDefault = 25, 106 METHOD_ATTR_MethodParameters = 26, 107 CODE_ATTR_StackMapTable = 0, 108 CODE_ATTR_LineNumberTable = 1, 109 CODE_ATTR_LocalVariableTable = 2, 110 CODE_ATTR_LocalVariableTypeTable = 3, 111 //X_ATTR_Synthetic = 12, // ACC_SYNTHETIC; not predefined 112 X_ATTR_Signature = 19, 113 X_ATTR_Deprecated = 20, 114 X_ATTR_RuntimeVisibleAnnotations = 21, 115 X_ATTR_RuntimeInvisibleAnnotations = 22, 116 X_ATTR_RuntimeVisibleTypeAnnotations = 27, 117 X_ATTR_RuntimeInvisibleTypeAnnotations = 28, 118 X_ATTR_OVERFLOW = 16, 119 X_ATTR_LIMIT_NO_FLAGS_HI = 32, 120 X_ATTR_LIMIT_FLAGS_HI = 63, 121 122#define O_ATTR_DO(F) \ 123 F(X_ATTR_OVERFLOW,01) \ 124 /*(end)*/ 125#define X_ATTR_DO(F) \ 126 O_ATTR_DO(F) \ 127 F(X_ATTR_Signature,Signature) \ 128 F(X_ATTR_Deprecated,Deprecated) \ 129 F(X_ATTR_RuntimeVisibleAnnotations,RuntimeVisibleAnnotations) \ 130 F(X_ATTR_RuntimeInvisibleAnnotations,RuntimeInvisibleAnnotations) \ 131 F(X_ATTR_RuntimeVisibleTypeAnnotations,RuntimeVisibleTypeAnnotations) \ 132 F(X_ATTR_RuntimeInvisibleTypeAnnotations,RuntimeInvisibleTypeAnnotations) \ 133 /*F(X_ATTR_Synthetic,Synthetic)*/ \ 134 /*(end)*/ 135#define CLASS_ATTR_DO(F) \ 136 F(CLASS_ATTR_SourceFile,SourceFile) \ 137 F(CLASS_ATTR_InnerClasses,InnerClasses) \ 138 F(CLASS_ATTR_EnclosingMethod,EnclosingMethod) \ 139 F(CLASS_ATTR_ClassFile_version,02) \ 140 F(CLASS_ATTR_BootstrapMethods,BootstrapMethods) \ 141 /*(end)*/ 142#define FIELD_ATTR_DO(F) \ 143 F(FIELD_ATTR_ConstantValue,ConstantValue) \ 144 /*(end)*/ 145#define METHOD_ATTR_DO(F) \ 146 F(METHOD_ATTR_Code,Code) \ 147 F(METHOD_ATTR_Exceptions,Exceptions) \ 148 F(METHOD_ATTR_RuntimeVisibleParameterAnnotations,RuntimeVisibleParameterAnnotations) \ 149 F(METHOD_ATTR_RuntimeInvisibleParameterAnnotations,RuntimeInvisibleParameterAnnotations) \ 150 F(METHOD_ATTR_AnnotationDefault,AnnotationDefault) \ 151 F(METHOD_ATTR_MethodParameters,MethodParameters) \ 152 /*(end)*/ 153#define CODE_ATTR_DO(F) \ 154 F(CODE_ATTR_StackMapTable,StackMapTable) \ 155 F(CODE_ATTR_LineNumberTable,LineNumberTable) \ 156 F(CODE_ATTR_LocalVariableTable,LocalVariableTable) \ 157 F(CODE_ATTR_LocalVariableTypeTable,LocalVariableTypeTable) \ 158 /*(end)*/ 159#define ALL_ATTR_DO(F) \ 160 X_ATTR_DO(F) \ 161 CLASS_ATTR_DO(F) \ 162 FIELD_ATTR_DO(F) \ 163 METHOD_ATTR_DO(F) \ 164 CODE_ATTR_DO(F) \ 165 /*(end)*/ 166 167 // attribute "context types" 168 ATTR_CONTEXT_CLASS = 0, 169 ATTR_CONTEXT_FIELD = 1, 170 ATTR_CONTEXT_METHOD = 2, 171 ATTR_CONTEXT_CODE = 3, 172 ATTR_CONTEXT_LIMIT = 4, 173 174 // constants for parsed layouts (stored in band::le_kind) 175 EK_NONE = 0, // not a layout element 176 EK_INT = 'I', // B H I SH etc., also FH etc. 177 EK_BCI = 'P', // PH etc. 178 EK_BCID = 'Q', // POH etc. 179 EK_BCO = 'O', // OH etc. 180 EK_REPL = 'N', // NH[...] etc. 181 EK_REF = 'R', // RUH, RUNH, KQH, etc. 182 EK_UN = 'T', // TB(...)[...] etc. 183 EK_CASE = 'K', // (...)[...] etc. 184 EK_CALL = '(', // (0), (1), etc. 185 EK_CBLE = '[', // [...][...] etc. 186 NO_BAND_INDEX = -1, 187 188 // File option bits, from LSB in ascending bit position. 189 FO_DEFLATE_HINT = 1<<0, 190 FO_IS_CLASS_STUB = 1<<1, 191 192 // Archive option bits, from LSB in ascending bit position: 193 AO_HAVE_SPECIAL_FORMATS = 1<<0, 194 AO_HAVE_CP_NUMBERS = 1<<1, 195 AO_HAVE_ALL_CODE_FLAGS = 1<<2, 196 AO_HAVE_CP_EXTRAS = 1<<3, 197 AO_HAVE_FILE_HEADERS = 1<<4, 198 AO_DEFLATE_HINT = 1<<5, 199 AO_HAVE_FILE_MODTIME = 1<<6, 200 AO_HAVE_FILE_OPTIONS = 1<<7, 201 AO_HAVE_FILE_SIZE_HI = 1<<8, 202 AO_HAVE_CLASS_FLAGS_HI = 1<<9, 203 AO_HAVE_FIELD_FLAGS_HI = 1<<10, 204 AO_HAVE_METHOD_FLAGS_HI = 1<<11, 205 AO_HAVE_CODE_FLAGS_HI = 1<<12, 206 AO_UNUSED_MBZ = (-1)<<13, // options bits reserved for future use. 207 208#define ARCHIVE_BIT_DO(F) \ 209 F(AO_HAVE_SPECIAL_FORMATS) \ 210 F(AO_HAVE_CP_NUMBERS) \ 211 F(AO_HAVE_ALL_CODE_FLAGS) \ 212 F(AO_HAVE_CP_EXTRAS) \ 213 F(AO_HAVE_FILE_HEADERS) \ 214 F(AO_DEFLATE_HINT) \ 215 F(AO_HAVE_FILE_MODTIME) \ 216 F(AO_HAVE_FILE_OPTIONS) \ 217 F(AO_HAVE_FILE_SIZE_HI) \ 218 F(AO_HAVE_CLASS_FLAGS_HI) \ 219 F(AO_HAVE_FIELD_FLAGS_HI) \ 220 F(AO_HAVE_METHOD_FLAGS_HI) \ 221 F(AO_HAVE_CODE_FLAGS_HI) \ 222 /*(end)*/ 223 224 // Constants for decoding attribute definition header bytes. 225 ADH_CONTEXT_MASK = 0x3, // (hdr & ADH_CONTEXT_MASK) 226 ADH_BIT_SHIFT = 0x2, // (hdr >> ADH_BIT_SHIFT) 227 ADH_BIT_IS_LSB = 1, // (hdr >> ADH_BIT_SHIFT) - ADH_BIT_IS_LSB 228#define ADH_BYTE(context, index) \ 229 ((((index) + ADH_BIT_IS_LSB)<<ADH_BIT_SHIFT) + (context)) 230#define ADH_BYTE_CONTEXT(adhb) \ 231 ((adhb) & ADH_CONTEXT_MASK) 232#define ADH_BYTE_INDEX(adhb) \ 233 (((adhb) >> ADH_BIT_SHIFT) - ADH_BIT_IS_LSB) 234 235 NO_MODTIME = 0, // null modtime value 236 237 // meta-coding 238 _meta_default = 0, 239 _meta_canon_min = 1, 240 _meta_canon_max = 115, 241 _meta_arb = 116, 242 _meta_run = 117, 243 _meta_pop = 141, 244 _meta_limit = 189, 245 _meta_error = 255, 246 247 _xxx_1_end 248}; 249 250// Bytecodes. 251 252enum { 253 bc_nop = 0, // 0x00 254 bc_aconst_null = 1, // 0x01 255 bc_iconst_m1 = 2, // 0x02 256 bc_iconst_0 = 3, // 0x03 257 bc_iconst_1 = 4, // 0x04 258 bc_iconst_2 = 5, // 0x05 259 bc_iconst_3 = 6, // 0x06 260 bc_iconst_4 = 7, // 0x07 261 bc_iconst_5 = 8, // 0x08 262 bc_lconst_0 = 9, // 0x09 263 bc_lconst_1 = 10, // 0x0a 264 bc_fconst_0 = 11, // 0x0b 265 bc_fconst_1 = 12, // 0x0c 266 bc_fconst_2 = 13, // 0x0d 267 bc_dconst_0 = 14, // 0x0e 268 bc_dconst_1 = 15, // 0x0f 269 bc_bipush = 16, // 0x10 270 bc_sipush = 17, // 0x11 271 bc_ldc = 18, // 0x12 272 bc_ldc_w = 19, // 0x13 273 bc_ldc2_w = 20, // 0x14 274 bc_iload = 21, // 0x15 275 bc_lload = 22, // 0x16 276 bc_fload = 23, // 0x17 277 bc_dload = 24, // 0x18 278 bc_aload = 25, // 0x19 279 bc_iload_0 = 26, // 0x1a 280 bc_iload_1 = 27, // 0x1b 281 bc_iload_2 = 28, // 0x1c 282 bc_iload_3 = 29, // 0x1d 283 bc_lload_0 = 30, // 0x1e 284 bc_lload_1 = 31, // 0x1f 285 bc_lload_2 = 32, // 0x20 286 bc_lload_3 = 33, // 0x21 287 bc_fload_0 = 34, // 0x22 288 bc_fload_1 = 35, // 0x23 289 bc_fload_2 = 36, // 0x24 290 bc_fload_3 = 37, // 0x25 291 bc_dload_0 = 38, // 0x26 292 bc_dload_1 = 39, // 0x27 293 bc_dload_2 = 40, // 0x28 294 bc_dload_3 = 41, // 0x29 295 bc_aload_0 = 42, // 0x2a 296 bc_aload_1 = 43, // 0x2b 297 bc_aload_2 = 44, // 0x2c 298 bc_aload_3 = 45, // 0x2d 299 bc_iaload = 46, // 0x2e 300 bc_laload = 47, // 0x2f 301 bc_faload = 48, // 0x30 302 bc_daload = 49, // 0x31 303 bc_aaload = 50, // 0x32 304 bc_baload = 51, // 0x33 305 bc_caload = 52, // 0x34 306 bc_saload = 53, // 0x35 307 bc_istore = 54, // 0x36 308 bc_lstore = 55, // 0x37 309 bc_fstore = 56, // 0x38 310 bc_dstore = 57, // 0x39 311 bc_astore = 58, // 0x3a 312 bc_istore_0 = 59, // 0x3b 313 bc_istore_1 = 60, // 0x3c 314 bc_istore_2 = 61, // 0x3d 315 bc_istore_3 = 62, // 0x3e 316 bc_lstore_0 = 63, // 0x3f 317 bc_lstore_1 = 64, // 0x40 318 bc_lstore_2 = 65, // 0x41 319 bc_lstore_3 = 66, // 0x42 320 bc_fstore_0 = 67, // 0x43 321 bc_fstore_1 = 68, // 0x44 322 bc_fstore_2 = 69, // 0x45 323 bc_fstore_3 = 70, // 0x46 324 bc_dstore_0 = 71, // 0x47 325 bc_dstore_1 = 72, // 0x48 326 bc_dstore_2 = 73, // 0x49 327 bc_dstore_3 = 74, // 0x4a 328 bc_astore_0 = 75, // 0x4b 329 bc_astore_1 = 76, // 0x4c 330 bc_astore_2 = 77, // 0x4d 331 bc_astore_3 = 78, // 0x4e 332 bc_iastore = 79, // 0x4f 333 bc_lastore = 80, // 0x50 334 bc_fastore = 81, // 0x51 335 bc_dastore = 82, // 0x52 336 bc_aastore = 83, // 0x53 337 bc_bastore = 84, // 0x54 338 bc_castore = 85, // 0x55 339 bc_sastore = 86, // 0x56 340 bc_pop = 87, // 0x57 341 bc_pop2 = 88, // 0x58 342 bc_dup = 89, // 0x59 343 bc_dup_x1 = 90, // 0x5a 344 bc_dup_x2 = 91, // 0x5b 345 bc_dup2 = 92, // 0x5c 346 bc_dup2_x1 = 93, // 0x5d 347 bc_dup2_x2 = 94, // 0x5e 348 bc_swap = 95, // 0x5f 349 bc_iadd = 96, // 0x60 350 bc_ladd = 97, // 0x61 351 bc_fadd = 98, // 0x62 352 bc_dadd = 99, // 0x63 353 bc_isub = 100, // 0x64 354 bc_lsub = 101, // 0x65 355 bc_fsub = 102, // 0x66 356 bc_dsub = 103, // 0x67 357 bc_imul = 104, // 0x68 358 bc_lmul = 105, // 0x69 359 bc_fmul = 106, // 0x6a 360 bc_dmul = 107, // 0x6b 361 bc_idiv = 108, // 0x6c 362 bc_ldiv = 109, // 0x6d 363 bc_fdiv = 110, // 0x6e 364 bc_ddiv = 111, // 0x6f 365 bc_irem = 112, // 0x70 366 bc_lrem = 113, // 0x71 367 bc_frem = 114, // 0x72 368 bc_drem = 115, // 0x73 369 bc_ineg = 116, // 0x74 370 bc_lneg = 117, // 0x75 371 bc_fneg = 118, // 0x76 372 bc_dneg = 119, // 0x77 373 bc_ishl = 120, // 0x78 374 bc_lshl = 121, // 0x79 375 bc_ishr = 122, // 0x7a 376 bc_lshr = 123, // 0x7b 377 bc_iushr = 124, // 0x7c 378 bc_lushr = 125, // 0x7d 379 bc_iand = 126, // 0x7e 380 bc_land = 127, // 0x7f 381 bc_ior = 128, // 0x80 382 bc_lor = 129, // 0x81 383 bc_ixor = 130, // 0x82 384 bc_lxor = 131, // 0x83 385 bc_iinc = 132, // 0x84 386 bc_i2l = 133, // 0x85 387 bc_i2f = 134, // 0x86 388 bc_i2d = 135, // 0x87 389 bc_l2i = 136, // 0x88 390 bc_l2f = 137, // 0x89 391 bc_l2d = 138, // 0x8a 392 bc_f2i = 139, // 0x8b 393 bc_f2l = 140, // 0x8c 394 bc_f2d = 141, // 0x8d 395 bc_d2i = 142, // 0x8e 396 bc_d2l = 143, // 0x8f 397 bc_d2f = 144, // 0x90 398 bc_i2b = 145, // 0x91 399 bc_i2c = 146, // 0x92 400 bc_i2s = 147, // 0x93 401 bc_lcmp = 148, // 0x94 402 bc_fcmpl = 149, // 0x95 403 bc_fcmpg = 150, // 0x96 404 bc_dcmpl = 151, // 0x97 405 bc_dcmpg = 152, // 0x98 406 bc_ifeq = 153, // 0x99 407 bc_ifne = 154, // 0x9a 408 bc_iflt = 155, // 0x9b 409 bc_ifge = 156, // 0x9c 410 bc_ifgt = 157, // 0x9d 411 bc_ifle = 158, // 0x9e 412 bc_if_icmpeq = 159, // 0x9f 413 bc_if_icmpne = 160, // 0xa0 414 bc_if_icmplt = 161, // 0xa1 415 bc_if_icmpge = 162, // 0xa2 416 bc_if_icmpgt = 163, // 0xa3 417 bc_if_icmple = 164, // 0xa4 418 bc_if_acmpeq = 165, // 0xa5 419 bc_if_acmpne = 166, // 0xa6 420 bc_goto = 167, // 0xa7 421 bc_jsr = 168, // 0xa8 422 bc_ret = 169, // 0xa9 423 bc_tableswitch = 170, // 0xaa 424 bc_lookupswitch = 171, // 0xab 425 bc_ireturn = 172, // 0xac 426 bc_lreturn = 173, // 0xad 427 bc_freturn = 174, // 0xae 428 bc_dreturn = 175, // 0xaf 429 bc_areturn = 176, // 0xb0 430 bc_return = 177, // 0xb1 431 bc_getstatic = 178, // 0xb2 432 bc_putstatic = 179, // 0xb3 433 bc_getfield = 180, // 0xb4 434 bc_putfield = 181, // 0xb5 435 bc_invokevirtual = 182, // 0xb6 436 bc_invokespecial = 183, // 0xb7 437 bc_invokestatic = 184, // 0xb8 438 bc_invokeinterface = 185, // 0xb9 439 bc_invokedynamic = 186, // 0xba 440 bc_new = 187, // 0xbb 441 bc_newarray = 188, // 0xbc 442 bc_anewarray = 189, // 0xbd 443 bc_arraylength = 190, // 0xbe 444 bc_athrow = 191, // 0xbf 445 bc_checkcast = 192, // 0xc0 446 bc_instanceof = 193, // 0xc1 447 bc_monitorenter = 194, // 0xc2 448 bc_monitorexit = 195, // 0xc3 449 bc_wide = 196, // 0xc4 450 bc_multianewarray = 197, // 0xc5 451 bc_ifnull = 198, // 0xc6 452 bc_ifnonnull = 199, // 0xc7 453 bc_goto_w = 200, // 0xc8 454 bc_jsr_w = 201, // 0xc9 455 bc_bytecode_limit = 202 // 0xca 456}; 457 458enum { 459 bc_end_marker = 255, 460 bc_byte_escape = 254, 461 bc_ref_escape = 253, 462 463 _first_linker_op = bc_getstatic, 464 _last_linker_op = bc_invokestatic, 465 _num_linker_ops = (_last_linker_op - _first_linker_op) + 1, 466 _self_linker_op = bc_bytecode_limit, 467 _self_linker_aload_flag = 1*_num_linker_ops, 468 _self_linker_super_flag = 2*_num_linker_ops, 469 _self_linker_limit = _self_linker_op + 4*_num_linker_ops, 470 471 _invokeinit_op = _self_linker_limit, 472 _invokeinit_self_option = 0, 473 _invokeinit_super_option = 1, 474 _invokeinit_new_option = 2, 475 _invokeinit_limit = _invokeinit_op+3, 476 477 _xldc_op = _invokeinit_limit, 478 bc_sldc = bc_ldc, // previously named bc_aldc 479 bc_cldc = _xldc_op+0, 480 bc_ildc = _xldc_op+1, 481 bc_fldc = _xldc_op+2, 482 bc_sldc_w = bc_ldc_w, // previously named bc_aldc_w 483 bc_cldc_w = _xldc_op+3, 484 bc_ildc_w = _xldc_op+4, 485 bc_fldc_w = _xldc_op+5, 486 bc_lldc2_w = bc_ldc2_w, 487 bc_dldc2_w = _xldc_op+6, 488 // anything other primitive, string, or class must be handled with qldc: 489 bc_qldc = _xldc_op+7, 490 bc_qldc_w = _xldc_op+8, 491 _xldc_limit = _xldc_op+9, 492 _invoke_int_op = _xldc_limit, 493 _invokespecial_int = _invoke_int_op+0, 494 _invokestatic_int = _invoke_int_op+1, 495 _invoke_int_limit = _invoke_int_op+2, 496 _xxx_3_end 497}; 498