Thu, 04 Apr 2019 17:56:29 +0800
Merge
aoqi@0 | 1 | /* |
kevinw@8368 | 2 | * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #ifndef SHARE_VM_OOPS_CONSTMETHODOOP_HPP |
aoqi@0 | 26 | #define SHARE_VM_OOPS_CONSTMETHODOOP_HPP |
aoqi@0 | 27 | |
aoqi@0 | 28 | #include "oops/oop.hpp" |
aoqi@0 | 29 | |
aoqi@0 | 30 | // An ConstMethod* represents portions of a Java method which |
aoqi@0 | 31 | // do not vary. |
aoqi@0 | 32 | // |
aoqi@0 | 33 | // Memory layout (each line represents a word). Note that most |
aoqi@0 | 34 | // applications load thousands of methods, so keeping the size of this |
aoqi@0 | 35 | // structure small has a big impact on footprint. |
aoqi@0 | 36 | // |
aoqi@0 | 37 | // |------------------------------------------------------| |
aoqi@0 | 38 | // | header | |
aoqi@0 | 39 | // | klass | |
aoqi@0 | 40 | // |------------------------------------------------------| |
aoqi@0 | 41 | // | fingerprint 1 | |
aoqi@0 | 42 | // | fingerprint 2 | |
aoqi@0 | 43 | // | constants (oop) | |
aoqi@0 | 44 | // | stackmap_data (oop) | |
aoqi@0 | 45 | // | constMethod_size | |
aoqi@0 | 46 | // | interp_kind | flags | code_size | |
aoqi@0 | 47 | // | name index | signature index | |
aoqi@0 | 48 | // | method_idnum | max_stack | |
aoqi@0 | 49 | // | max_locals | size_of_parameters | |
aoqi@0 | 50 | // |------------------------------------------------------| |
aoqi@0 | 51 | // | | |
aoqi@0 | 52 | // | byte codes | |
aoqi@0 | 53 | // | | |
aoqi@0 | 54 | // |------------------------------------------------------| |
aoqi@0 | 55 | // | compressed linenumber table | |
aoqi@0 | 56 | // | (see class CompressedLineNumberReadStream) | |
aoqi@0 | 57 | // | (note that length is unknown until decompressed) | |
aoqi@0 | 58 | // | (access flags bit tells whether table is present) | |
aoqi@0 | 59 | // | (indexed from start of ConstMethod*) | |
aoqi@0 | 60 | // | (elements not necessarily sorted!) | |
aoqi@0 | 61 | // |------------------------------------------------------| |
aoqi@0 | 62 | // | localvariable table elements + length (length last) | |
aoqi@0 | 63 | // | (length is u2, elements are 6-tuples of u2) | |
aoqi@0 | 64 | // | (see class LocalVariableTableElement) | |
aoqi@0 | 65 | // | (access flags bit tells whether table is present) | |
aoqi@0 | 66 | // | (indexed from end of ConstMethod*) | |
aoqi@0 | 67 | // |------------------------------------------------------| |
aoqi@0 | 68 | // | exception table + length (length last) | |
aoqi@0 | 69 | // | (length is u2, elements are 4-tuples of u2) | |
aoqi@0 | 70 | // | (see class ExceptionTableElement) | |
aoqi@0 | 71 | // | (access flags bit tells whether table is present) | |
aoqi@0 | 72 | // | (indexed from end of ConstMethod*) | |
aoqi@0 | 73 | // |------------------------------------------------------| |
aoqi@0 | 74 | // | checked exceptions elements + length (length last) | |
aoqi@0 | 75 | // | (length is u2, elements are u2) | |
aoqi@0 | 76 | // | (see class CheckedExceptionElement) | |
aoqi@0 | 77 | // | (access flags bit tells whether table is present) | |
aoqi@0 | 78 | // | (indexed from end of ConstMethod*) | |
aoqi@0 | 79 | // |------------------------------------------------------| |
aoqi@0 | 80 | // | method parameters elements + length (length last) | |
aoqi@0 | 81 | // | (length is u2, elements are u2, u4 structures) | |
aoqi@0 | 82 | // | (see class MethodParametersElement) | |
aoqi@0 | 83 | // | (access flags bit tells whether table is present) | |
aoqi@0 | 84 | // | (indexed from end of ConstMethod*) | |
aoqi@0 | 85 | // |------------------------------------------------------| |
aoqi@0 | 86 | // | generic signature index (u2) | |
aoqi@0 | 87 | // | (indexed from start of constMethodOop) | |
aoqi@0 | 88 | // |------------------------------------------------------| |
aoqi@0 | 89 | // | annotations arrays - method, parameter, type, default| |
aoqi@0 | 90 | // | pointer to Array<u1> if annotation is present | |
aoqi@0 | 91 | // |------------------------------------------------------| |
aoqi@0 | 92 | // |
aoqi@0 | 93 | // IMPORTANT: If anything gets added here, there need to be changes to |
aoqi@0 | 94 | // ensure that ServicabilityAgent doesn't get broken as a result! |
aoqi@0 | 95 | |
aoqi@0 | 96 | |
aoqi@0 | 97 | // Utility class describing elements in checked exceptions table inlined in Method*. |
aoqi@0 | 98 | class CheckedExceptionElement VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 99 | public: |
aoqi@0 | 100 | u2 class_cp_index; |
aoqi@0 | 101 | }; |
aoqi@0 | 102 | |
aoqi@0 | 103 | |
aoqi@0 | 104 | // Utility class describing elements in local variable table inlined in Method*. |
aoqi@0 | 105 | class LocalVariableTableElement VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 106 | public: |
aoqi@0 | 107 | u2 start_bci; |
aoqi@0 | 108 | u2 length; |
aoqi@0 | 109 | u2 name_cp_index; |
aoqi@0 | 110 | u2 descriptor_cp_index; |
aoqi@0 | 111 | u2 signature_cp_index; |
aoqi@0 | 112 | u2 slot; |
aoqi@0 | 113 | }; |
aoqi@0 | 114 | |
aoqi@0 | 115 | // Utility class describing elements in exception table |
aoqi@0 | 116 | class ExceptionTableElement VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 117 | public: |
aoqi@0 | 118 | u2 start_pc; |
aoqi@0 | 119 | u2 end_pc; |
aoqi@0 | 120 | u2 handler_pc; |
aoqi@0 | 121 | u2 catch_type_index; |
aoqi@0 | 122 | }; |
aoqi@0 | 123 | |
aoqi@0 | 124 | // Utility class describing elements in method parameters |
aoqi@0 | 125 | class MethodParametersElement VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 126 | public: |
aoqi@0 | 127 | u2 name_cp_index; |
aoqi@0 | 128 | u2 flags; |
aoqi@0 | 129 | }; |
aoqi@0 | 130 | |
aoqi@0 | 131 | class KlassSizeStats; |
aoqi@0 | 132 | |
aoqi@0 | 133 | // Class to collect the sizes of ConstMethod inline tables |
aoqi@0 | 134 | #define INLINE_TABLES_DO(do_element) \ |
aoqi@0 | 135 | do_element(localvariable_table_length) \ |
aoqi@0 | 136 | do_element(compressed_linenumber_size) \ |
aoqi@0 | 137 | do_element(exception_table_length) \ |
aoqi@0 | 138 | do_element(checked_exceptions_length) \ |
aoqi@0 | 139 | do_element(method_parameters_length) \ |
aoqi@0 | 140 | do_element(generic_signature_index) \ |
aoqi@0 | 141 | do_element(method_annotations_length) \ |
aoqi@0 | 142 | do_element(parameter_annotations_length) \ |
aoqi@0 | 143 | do_element(type_annotations_length) \ |
aoqi@0 | 144 | do_element(default_annotations_length) |
aoqi@0 | 145 | |
aoqi@0 | 146 | #define INLINE_TABLE_DECLARE(sym) int _##sym; |
aoqi@0 | 147 | #define INLINE_TABLE_PARAM(sym) int sym, |
aoqi@0 | 148 | #define INLINE_TABLE_INIT(sym) _##sym(sym), |
aoqi@0 | 149 | #define INLINE_TABLE_NULL(sym) _##sym(0), |
aoqi@0 | 150 | #define INLINE_TABLE_ACCESSOR(sym) int sym() const { return _##sym; } |
aoqi@0 | 151 | |
aoqi@0 | 152 | class InlineTableSizes : StackObj { |
aoqi@0 | 153 | // declarations |
aoqi@0 | 154 | INLINE_TABLES_DO(INLINE_TABLE_DECLARE) |
aoqi@0 | 155 | int _end; |
aoqi@0 | 156 | public: |
aoqi@0 | 157 | InlineTableSizes( |
aoqi@0 | 158 | INLINE_TABLES_DO(INLINE_TABLE_PARAM) |
aoqi@0 | 159 | int end) : |
aoqi@0 | 160 | INLINE_TABLES_DO(INLINE_TABLE_INIT) |
aoqi@0 | 161 | _end(end) {} |
aoqi@0 | 162 | |
aoqi@0 | 163 | // Default constructor for no inlined tables |
aoqi@0 | 164 | InlineTableSizes() : |
aoqi@0 | 165 | INLINE_TABLES_DO(INLINE_TABLE_NULL) |
aoqi@0 | 166 | _end(0) {} |
aoqi@0 | 167 | |
aoqi@0 | 168 | // Accessors |
aoqi@0 | 169 | INLINE_TABLES_DO(INLINE_TABLE_ACCESSOR) |
aoqi@0 | 170 | }; |
aoqi@0 | 171 | #undef INLINE_TABLE_ACCESSOR |
aoqi@0 | 172 | #undef INLINE_TABLE_NULL |
aoqi@0 | 173 | #undef INLINE_TABLE_INIT |
aoqi@0 | 174 | #undef INLINE_TABLE_PARAM |
aoqi@0 | 175 | #undef INLINE_TABLE_DECLARE |
aoqi@0 | 176 | |
aoqi@0 | 177 | |
aoqi@0 | 178 | class ConstMethod : public MetaspaceObj { |
aoqi@0 | 179 | friend class VMStructs; |
aoqi@0 | 180 | |
aoqi@0 | 181 | public: |
aoqi@0 | 182 | typedef enum { NORMAL, OVERPASS } MethodType; |
aoqi@0 | 183 | |
aoqi@0 | 184 | private: |
aoqi@0 | 185 | enum { |
aoqi@0 | 186 | _has_linenumber_table = 0x0001, |
aoqi@0 | 187 | _has_checked_exceptions = 0x0002, |
aoqi@0 | 188 | _has_localvariable_table = 0x0004, |
aoqi@0 | 189 | _has_exception_table = 0x0008, |
aoqi@0 | 190 | _has_generic_signature = 0x0010, |
aoqi@0 | 191 | _has_method_parameters = 0x0020, |
aoqi@0 | 192 | _is_overpass = 0x0040, |
aoqi@0 | 193 | _has_method_annotations = 0x0080, |
aoqi@0 | 194 | _has_parameter_annotations = 0x0100, |
aoqi@0 | 195 | _has_type_annotations = 0x0200, |
aoqi@0 | 196 | _has_default_annotations = 0x0400 |
aoqi@0 | 197 | }; |
aoqi@0 | 198 | |
aoqi@0 | 199 | // Bit vector of signature |
aoqi@0 | 200 | // Callers interpret 0=not initialized yet and |
aoqi@0 | 201 | // -1=too many args to fix, must parse the slow way. |
aoqi@0 | 202 | // The real initial value is special to account for nonatomicity of 64 bit |
aoqi@0 | 203 | // loads and stores. This value may updated and read without a lock by |
aoqi@0 | 204 | // multiple threads, so is volatile. |
aoqi@0 | 205 | volatile uint64_t _fingerprint; |
aoqi@0 | 206 | |
aoqi@0 | 207 | ConstantPool* _constants; // Constant pool |
aoqi@0 | 208 | |
aoqi@0 | 209 | // Raw stackmap data for the method |
aoqi@0 | 210 | Array<u1>* _stackmap_data; |
aoqi@0 | 211 | |
aoqi@0 | 212 | int _constMethod_size; |
aoqi@0 | 213 | u2 _flags; |
kevinw@8368 | 214 | u1 _result_type; // BasicType of result |
aoqi@0 | 215 | |
aoqi@0 | 216 | // Size of Java bytecodes allocated immediately after Method*. |
aoqi@0 | 217 | u2 _code_size; |
aoqi@0 | 218 | u2 _name_index; // Method name (index in constant pool) |
aoqi@0 | 219 | u2 _signature_index; // Method signature (index in constant pool) |
aoqi@0 | 220 | u2 _method_idnum; // unique identification number for the method within the class |
aoqi@0 | 221 | // initially corresponds to the index into the methods array. |
aoqi@0 | 222 | // but this may change with redefinition |
aoqi@0 | 223 | u2 _max_stack; // Maximum number of entries on the expression stack |
aoqi@0 | 224 | u2 _max_locals; // Number of local variables used by this method |
aoqi@0 | 225 | u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words |
sspitsyn@7636 | 226 | u2 _orig_method_idnum; // Original unique identification number for the method |
aoqi@0 | 227 | |
aoqi@0 | 228 | // Constructor |
aoqi@0 | 229 | ConstMethod(int byte_code_size, |
aoqi@0 | 230 | InlineTableSizes* sizes, |
aoqi@0 | 231 | MethodType is_overpass, |
aoqi@0 | 232 | int size); |
aoqi@0 | 233 | public: |
aoqi@0 | 234 | |
aoqi@0 | 235 | static ConstMethod* allocate(ClassLoaderData* loader_data, |
aoqi@0 | 236 | int byte_code_size, |
aoqi@0 | 237 | InlineTableSizes* sizes, |
aoqi@0 | 238 | MethodType mt, |
aoqi@0 | 239 | TRAPS); |
aoqi@0 | 240 | |
aoqi@0 | 241 | bool is_constMethod() const { return true; } |
aoqi@0 | 242 | |
aoqi@0 | 243 | // Inlined tables |
aoqi@0 | 244 | void set_inlined_tables_length(InlineTableSizes* sizes); |
aoqi@0 | 245 | |
aoqi@0 | 246 | bool has_generic_signature() const |
aoqi@0 | 247 | { return (_flags & _has_generic_signature) != 0; } |
aoqi@0 | 248 | |
aoqi@0 | 249 | bool has_linenumber_table() const |
aoqi@0 | 250 | { return (_flags & _has_linenumber_table) != 0; } |
aoqi@0 | 251 | |
aoqi@0 | 252 | bool has_checked_exceptions() const |
aoqi@0 | 253 | { return (_flags & _has_checked_exceptions) != 0; } |
aoqi@0 | 254 | |
aoqi@0 | 255 | bool has_localvariable_table() const |
aoqi@0 | 256 | { return (_flags & _has_localvariable_table) != 0; } |
aoqi@0 | 257 | |
aoqi@0 | 258 | bool has_exception_handler() const |
aoqi@0 | 259 | { return (_flags & _has_exception_table) != 0; } |
aoqi@0 | 260 | |
aoqi@0 | 261 | bool has_method_parameters() const |
aoqi@0 | 262 | { return (_flags & _has_method_parameters) != 0; } |
aoqi@0 | 263 | |
aoqi@0 | 264 | MethodType method_type() const { |
aoqi@0 | 265 | return ((_flags & _is_overpass) == 0) ? NORMAL : OVERPASS; |
aoqi@0 | 266 | } |
aoqi@0 | 267 | |
aoqi@0 | 268 | void set_method_type(MethodType mt) { |
aoqi@0 | 269 | if (mt == NORMAL) { |
aoqi@0 | 270 | _flags &= ~(_is_overpass); |
aoqi@0 | 271 | } else { |
aoqi@0 | 272 | _flags |= _is_overpass; |
aoqi@0 | 273 | } |
aoqi@0 | 274 | } |
aoqi@0 | 275 | |
aoqi@0 | 276 | // constant pool |
aoqi@0 | 277 | ConstantPool* constants() const { return _constants; } |
aoqi@0 | 278 | void set_constants(ConstantPool* c) { _constants = c; } |
aoqi@0 | 279 | |
aoqi@0 | 280 | Method* method() const; |
aoqi@0 | 281 | |
aoqi@0 | 282 | // stackmap table data |
aoqi@0 | 283 | Array<u1>* stackmap_data() const { return _stackmap_data; } |
aoqi@0 | 284 | void set_stackmap_data(Array<u1>* sd) { _stackmap_data = sd; } |
aoqi@0 | 285 | void copy_stackmap_data(ClassLoaderData* loader_data, u1* sd, int length, TRAPS); |
aoqi@0 | 286 | bool has_stackmap_table() const { return _stackmap_data != NULL; } |
aoqi@0 | 287 | |
aoqi@0 | 288 | void init_fingerprint() { |
aoqi@0 | 289 | const uint64_t initval = CONST64(0x8000000000000000); |
aoqi@0 | 290 | _fingerprint = initval; |
aoqi@0 | 291 | } |
aoqi@0 | 292 | |
aoqi@0 | 293 | uint64_t fingerprint() const { |
aoqi@0 | 294 | // Since reads aren't atomic for 64 bits, if any of the high or low order |
aoqi@0 | 295 | // word is the initial value, return 0. See init_fingerprint for initval. |
aoqi@0 | 296 | uint high_fp = (uint)(_fingerprint >> 32); |
aoqi@0 | 297 | if ((int) _fingerprint == 0 || high_fp == 0x80000000) { |
aoqi@0 | 298 | return 0L; |
aoqi@0 | 299 | } else { |
aoqi@0 | 300 | return _fingerprint; |
aoqi@0 | 301 | } |
aoqi@0 | 302 | } |
aoqi@0 | 303 | |
aoqi@0 | 304 | uint64_t set_fingerprint(uint64_t new_fingerprint) { |
aoqi@0 | 305 | #ifdef ASSERT |
aoqi@0 | 306 | // Assert only valid if complete/valid 64 bit _fingerprint value is read. |
aoqi@0 | 307 | uint64_t oldfp = fingerprint(); |
aoqi@0 | 308 | #endif // ASSERT |
aoqi@0 | 309 | _fingerprint = new_fingerprint; |
aoqi@0 | 310 | assert(oldfp == 0L || new_fingerprint == oldfp, |
aoqi@0 | 311 | "fingerprint cannot change"); |
aoqi@0 | 312 | assert(((new_fingerprint >> 32) != 0x80000000) && (int)new_fingerprint !=0, |
aoqi@0 | 313 | "fingerprint should call init to set initial value"); |
aoqi@0 | 314 | return new_fingerprint; |
aoqi@0 | 315 | } |
aoqi@0 | 316 | |
aoqi@0 | 317 | // name |
aoqi@0 | 318 | int name_index() const { return _name_index; } |
aoqi@0 | 319 | void set_name_index(int index) { _name_index = index; } |
aoqi@0 | 320 | |
aoqi@0 | 321 | // signature |
aoqi@0 | 322 | int signature_index() const { return _signature_index; } |
aoqi@0 | 323 | void set_signature_index(int index) { _signature_index = index; } |
aoqi@0 | 324 | |
aoqi@0 | 325 | // generics support |
aoqi@0 | 326 | int generic_signature_index() const { |
aoqi@0 | 327 | if (has_generic_signature()) { |
aoqi@0 | 328 | return *generic_signature_index_addr(); |
aoqi@0 | 329 | } else { |
aoqi@0 | 330 | return 0; |
aoqi@0 | 331 | } |
aoqi@0 | 332 | } |
aoqi@0 | 333 | void set_generic_signature_index(u2 index) { |
aoqi@0 | 334 | assert(has_generic_signature(), ""); |
aoqi@0 | 335 | u2* addr = generic_signature_index_addr(); |
aoqi@0 | 336 | *addr = index; |
aoqi@0 | 337 | } |
aoqi@0 | 338 | |
aoqi@0 | 339 | // Sizing |
aoqi@0 | 340 | static int header_size() { |
aoqi@0 | 341 | return sizeof(ConstMethod)/HeapWordSize; |
aoqi@0 | 342 | } |
aoqi@0 | 343 | |
aoqi@0 | 344 | // Size needed |
aoqi@0 | 345 | static int size(int code_size, InlineTableSizes* sizes); |
aoqi@0 | 346 | |
aoqi@0 | 347 | int size() const { return _constMethod_size;} |
aoqi@0 | 348 | void set_constMethod_size(int size) { _constMethod_size = size; } |
aoqi@0 | 349 | #if INCLUDE_SERVICES |
aoqi@0 | 350 | void collect_statistics(KlassSizeStats *sz) const; |
aoqi@0 | 351 | #endif |
aoqi@0 | 352 | |
aoqi@0 | 353 | // code size |
aoqi@0 | 354 | int code_size() const { return _code_size; } |
aoqi@0 | 355 | void set_code_size(int size) { |
aoqi@0 | 356 | assert(max_method_code_size < (1 << 16), |
aoqi@0 | 357 | "u2 is too small to hold method code size in general"); |
aoqi@0 | 358 | assert(0 <= size && size <= max_method_code_size, "invalid code size"); |
aoqi@0 | 359 | _code_size = size; |
aoqi@0 | 360 | } |
aoqi@0 | 361 | |
aoqi@0 | 362 | // linenumber table - note that length is unknown until decompression, |
aoqi@0 | 363 | // see class CompressedLineNumberReadStream. |
aoqi@0 | 364 | u_char* compressed_linenumber_table() const; // not preserved by gc |
aoqi@0 | 365 | u2* generic_signature_index_addr() const; |
aoqi@0 | 366 | u2* checked_exceptions_length_addr() const; |
aoqi@0 | 367 | u2* localvariable_table_length_addr() const; |
aoqi@0 | 368 | u2* exception_table_length_addr() const; |
aoqi@0 | 369 | u2* method_parameters_length_addr() const; |
aoqi@0 | 370 | |
aoqi@0 | 371 | // checked exceptions |
aoqi@0 | 372 | int checked_exceptions_length() const; |
aoqi@0 | 373 | CheckedExceptionElement* checked_exceptions_start() const; |
aoqi@0 | 374 | |
aoqi@0 | 375 | // localvariable table |
aoqi@0 | 376 | int localvariable_table_length() const; |
aoqi@0 | 377 | LocalVariableTableElement* localvariable_table_start() const; |
aoqi@0 | 378 | |
aoqi@0 | 379 | // exception table |
aoqi@0 | 380 | int exception_table_length() const; |
aoqi@0 | 381 | ExceptionTableElement* exception_table_start() const; |
aoqi@0 | 382 | |
aoqi@0 | 383 | // method parameters table |
aoqi@0 | 384 | int method_parameters_length() const; |
aoqi@0 | 385 | MethodParametersElement* method_parameters_start() const; |
aoqi@0 | 386 | |
aoqi@0 | 387 | // method annotations |
aoqi@0 | 388 | bool has_method_annotations() const |
aoqi@0 | 389 | { return (_flags & _has_method_annotations) != 0; } |
aoqi@0 | 390 | |
aoqi@0 | 391 | bool has_parameter_annotations() const |
aoqi@0 | 392 | { return (_flags & _has_parameter_annotations) != 0; } |
aoqi@0 | 393 | |
aoqi@0 | 394 | bool has_type_annotations() const |
aoqi@0 | 395 | { return (_flags & _has_type_annotations) != 0; } |
aoqi@0 | 396 | |
aoqi@0 | 397 | bool has_default_annotations() const |
aoqi@0 | 398 | { return (_flags & _has_default_annotations) != 0; } |
aoqi@0 | 399 | |
aoqi@0 | 400 | |
aoqi@0 | 401 | AnnotationArray** method_annotations_addr() const; |
aoqi@0 | 402 | AnnotationArray* method_annotations() const { |
aoqi@0 | 403 | return has_method_annotations() ? *(method_annotations_addr()) : NULL; |
aoqi@0 | 404 | } |
aoqi@0 | 405 | void set_method_annotations(AnnotationArray* anno) { |
aoqi@0 | 406 | *(method_annotations_addr()) = anno; |
aoqi@0 | 407 | } |
aoqi@0 | 408 | |
aoqi@0 | 409 | AnnotationArray** parameter_annotations_addr() const; |
aoqi@0 | 410 | AnnotationArray* parameter_annotations() const { |
aoqi@0 | 411 | return has_parameter_annotations() ? *(parameter_annotations_addr()) : NULL; |
aoqi@0 | 412 | } |
aoqi@0 | 413 | void set_parameter_annotations(AnnotationArray* anno) { |
aoqi@0 | 414 | *(parameter_annotations_addr()) = anno; |
aoqi@0 | 415 | } |
aoqi@0 | 416 | |
aoqi@0 | 417 | AnnotationArray** type_annotations_addr() const; |
aoqi@0 | 418 | AnnotationArray* type_annotations() const { |
aoqi@0 | 419 | return has_type_annotations() ? *(type_annotations_addr()) : NULL; |
aoqi@0 | 420 | } |
aoqi@0 | 421 | void set_type_annotations(AnnotationArray* anno) { |
aoqi@0 | 422 | *(type_annotations_addr()) = anno; |
aoqi@0 | 423 | } |
aoqi@0 | 424 | |
aoqi@0 | 425 | AnnotationArray** default_annotations_addr() const; |
aoqi@0 | 426 | AnnotationArray* default_annotations() const { |
aoqi@0 | 427 | return has_default_annotations() ? *(default_annotations_addr()) : NULL; |
aoqi@0 | 428 | } |
aoqi@0 | 429 | void set_default_annotations(AnnotationArray* anno) { |
aoqi@0 | 430 | *(default_annotations_addr()) = anno; |
aoqi@0 | 431 | } |
aoqi@0 | 432 | |
aoqi@0 | 433 | int method_annotations_length() const { |
aoqi@0 | 434 | return has_method_annotations() ? method_annotations()->length() : 0; |
aoqi@0 | 435 | } |
aoqi@0 | 436 | int parameter_annotations_length() const { |
aoqi@0 | 437 | return has_parameter_annotations() ? parameter_annotations()->length() : 0; |
aoqi@0 | 438 | } |
aoqi@0 | 439 | int type_annotations_length() const { |
aoqi@0 | 440 | return has_type_annotations() ? type_annotations()->length() : 0; |
aoqi@0 | 441 | } |
aoqi@0 | 442 | int default_annotations_length() const { |
aoqi@0 | 443 | return has_default_annotations() ? default_annotations()->length() : 0; |
aoqi@0 | 444 | } |
aoqi@0 | 445 | |
aoqi@0 | 446 | // Copy annotations from other ConstMethod |
aoqi@0 | 447 | void copy_annotations_from(ConstMethod* cm); |
aoqi@0 | 448 | |
aoqi@0 | 449 | // byte codes |
aoqi@0 | 450 | void set_code(address code) { |
aoqi@0 | 451 | if (code_size() > 0) { |
aoqi@0 | 452 | memcpy(code_base(), code, code_size()); |
aoqi@0 | 453 | } |
aoqi@0 | 454 | } |
aoqi@0 | 455 | address code_base() const { return (address) (this+1); } |
aoqi@0 | 456 | address code_end() const { return code_base() + code_size(); } |
aoqi@0 | 457 | bool contains(address bcp) const { return code_base() <= bcp |
aoqi@0 | 458 | && bcp < code_end(); } |
aoqi@0 | 459 | // Offset to bytecodes |
aoqi@0 | 460 | static ByteSize codes_offset() |
aoqi@0 | 461 | { return in_ByteSize(sizeof(ConstMethod)); } |
aoqi@0 | 462 | |
aoqi@0 | 463 | static ByteSize constants_offset() |
aoqi@0 | 464 | { return byte_offset_of(ConstMethod, _constants); } |
aoqi@0 | 465 | |
aoqi@0 | 466 | static ByteSize max_stack_offset() |
aoqi@0 | 467 | { return byte_offset_of(ConstMethod, _max_stack); } |
aoqi@0 | 468 | static ByteSize size_of_locals_offset() |
aoqi@0 | 469 | { return byte_offset_of(ConstMethod, _max_locals); } |
aoqi@0 | 470 | static ByteSize size_of_parameters_offset() |
aoqi@0 | 471 | { return byte_offset_of(ConstMethod, _size_of_parameters); } |
aoqi@0 | 472 | |
kevinw@8368 | 473 | static ByteSize result_type_offset() |
kevinw@8368 | 474 | { return byte_offset_of(ConstMethod, _result_type); } |
aoqi@0 | 475 | |
aoqi@0 | 476 | // Unique id for the method |
aoqi@0 | 477 | static const u2 MAX_IDNUM; |
aoqi@0 | 478 | static const u2 UNSET_IDNUM; |
aoqi@0 | 479 | u2 method_idnum() const { return _method_idnum; } |
aoqi@0 | 480 | void set_method_idnum(u2 idnum) { _method_idnum = idnum; } |
aoqi@0 | 481 | |
sspitsyn@7636 | 482 | u2 orig_method_idnum() const { return _orig_method_idnum; } |
sspitsyn@7636 | 483 | void set_orig_method_idnum(u2 idnum) { _orig_method_idnum = idnum; } |
sspitsyn@7636 | 484 | |
aoqi@0 | 485 | // max stack |
aoqi@0 | 486 | int max_stack() const { return _max_stack; } |
aoqi@0 | 487 | void set_max_stack(int size) { _max_stack = size; } |
aoqi@0 | 488 | |
aoqi@0 | 489 | // max locals |
aoqi@0 | 490 | int max_locals() const { return _max_locals; } |
aoqi@0 | 491 | void set_max_locals(int size) { _max_locals = size; } |
aoqi@0 | 492 | |
aoqi@0 | 493 | // size of parameters |
aoqi@0 | 494 | int size_of_parameters() const { return _size_of_parameters; } |
aoqi@0 | 495 | void set_size_of_parameters(int size) { _size_of_parameters = size; } |
aoqi@0 | 496 | |
kevinw@8368 | 497 | void set_result_type(BasicType rt) { assert(rt < 16, "result type too large"); |
kevinw@8368 | 498 | _result_type = (u1)rt; } |
aoqi@0 | 499 | // Deallocation for RedefineClasses |
aoqi@0 | 500 | void deallocate_contents(ClassLoaderData* loader_data); |
aoqi@0 | 501 | bool is_klass() const { return false; } |
aoqi@0 | 502 | DEBUG_ONLY(bool on_stack() { return false; }) |
aoqi@0 | 503 | |
aoqi@0 | 504 | private: |
aoqi@0 | 505 | // Since the size of the compressed line number table is unknown, the |
aoqi@0 | 506 | // offsets of the other variable sized sections are computed backwards |
aoqi@0 | 507 | // from the end of the ConstMethod*. |
aoqi@0 | 508 | |
aoqi@0 | 509 | // First byte after ConstMethod* |
aoqi@0 | 510 | address constMethod_end() const |
aoqi@0 | 511 | { return (address)((intptr_t*)this + _constMethod_size); } |
aoqi@0 | 512 | |
aoqi@0 | 513 | // Last short in ConstMethod* |
aoqi@0 | 514 | u2* last_u2_element() const; |
aoqi@0 | 515 | |
aoqi@0 | 516 | public: |
aoqi@0 | 517 | // Printing |
aoqi@0 | 518 | void print_on (outputStream* st) const; |
aoqi@0 | 519 | void print_value_on(outputStream* st) const; |
aoqi@0 | 520 | |
aoqi@0 | 521 | const char* internal_name() const { return "{constMethod}"; } |
aoqi@0 | 522 | |
aoqi@0 | 523 | // Verify |
aoqi@0 | 524 | void verify_on(outputStream* st); |
aoqi@0 | 525 | }; |
aoqi@0 | 526 | |
aoqi@0 | 527 | #endif // SHARE_VM_OOPS_CONSTMETHODOOP_HPP |