Mercurial > hg > truffle
annotate src/share/vm/interpreter/bytecode.hpp @ 1982:6a2d73358ff7
7004217: Remove IA64 workaround re-introduced with CR6953477
Summary: gcc bug worksaround for IA64 no longer needed
Reviewed-by: andrew
| author | bobv |
|---|---|
| date | Thu, 02 Dec 2010 14:00:03 -0500 |
| parents | f95d63e2154a |
| children | 8012aa3ccede |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1579 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_INTERPRETER_BYTECODE_HPP |
| 26 #define SHARE_VM_INTERPRETER_BYTECODE_HPP | |
| 27 | |
| 28 #include "interpreter/bytecodes.hpp" | |
| 29 #include "memory/allocation.hpp" | |
| 30 #include "oops/methodOop.hpp" | |
| 31 #ifdef TARGET_ARCH_x86 | |
| 32 # include "bytes_x86.hpp" | |
| 33 #endif | |
| 34 #ifdef TARGET_ARCH_sparc | |
| 35 # include "bytes_sparc.hpp" | |
| 36 #endif | |
| 37 #ifdef TARGET_ARCH_zero | |
| 38 # include "bytes_zero.hpp" | |
| 39 #endif | |
| 40 | |
| 0 | 41 // Base class for different kinds of abstractions working |
| 42 // relative to an objects 'this' pointer. | |
| 43 | |
| 44 class ThisRelativeObj VALUE_OBJ_CLASS_SPEC { | |
| 45 public: | |
| 46 // Address computation | |
| 47 address addr_at (int offset) const { return (address)this + offset; } | |
| 1565 | 48 int byte_at (int offset) const { return *(addr_at(offset)); } |
| 0 | 49 address aligned_addr_at (int offset) const { return (address)round_to((intptr_t)addr_at(offset), jintSize); } |
| 50 int aligned_offset (int offset) const { return aligned_addr_at(offset) - addr_at(0); } | |
| 51 | |
| 1565 | 52 // Word access: |
| 53 int get_Java_u2_at (int offset) const { return Bytes::get_Java_u2(addr_at(offset)); } | |
| 54 int get_Java_u4_at (int offset) const { return Bytes::get_Java_u4(addr_at(offset)); } | |
| 55 int get_native_u2_at (int offset) const { return Bytes::get_native_u2(addr_at(offset)); } | |
| 56 int get_native_u4_at (int offset) const { return Bytes::get_native_u4(addr_at(offset)); } | |
| 0 | 57 }; |
| 58 | |
| 59 | |
| 60 // The base class for different kinds of bytecode abstractions. | |
| 61 // Provides the primitive operations to manipulate code relative | |
| 62 // to an objects 'this' pointer. | |
| 1565 | 63 // FIXME: Make this a ResourceObj, include the enclosing methodOop, and cache the opcode. |
| 0 | 64 |
| 65 class Bytecode: public ThisRelativeObj { | |
| 66 protected: | |
| 67 u_char byte_at(int offset) const { return *addr_at(offset); } | |
| 1565 | 68 bool check_must_rewrite(Bytecodes::Code bc) const; |
| 0 | 69 |
| 70 public: | |
| 71 // Attributes | |
| 72 address bcp() const { return addr_at(0); } | |
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73 int instruction_size() const { return Bytecodes::length_at(bcp()); } |
| 0 | 74 |
| 1565 | 75 // Warning: Use code() with caution on live bytecode streams. 4926272 |
| 0 | 76 Bytecodes::Code code() const { return Bytecodes::code_at(addr_at(0)); } |
| 77 Bytecodes::Code java_code() const { return Bytecodes::java_code(code()); } | |
| 1565 | 78 bool must_rewrite(Bytecodes::Code code) const { return Bytecodes::can_rewrite(code) && check_must_rewrite(code); } |
| 0 | 79 |
| 80 // Creation | |
| 81 inline friend Bytecode* Bytecode_at(address bcp); | |
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82 |
| 1565 | 83 // Static functions for parsing bytecodes in place. |
| 84 int get_index_u1(Bytecodes::Code bc) const { | |
| 85 assert_same_format_as(bc); assert_index_size(1, bc); | |
| 86 return *(jubyte*)addr_at(1); | |
| 87 } | |
| 88 int get_index_u2(Bytecodes::Code bc, bool is_wide = false) const { | |
| 89 assert_same_format_as(bc, is_wide); assert_index_size(2, bc, is_wide); | |
| 90 address p = addr_at(is_wide ? 2 : 1); | |
| 91 if (can_use_native_byte_order(bc, is_wide)) | |
| 92 return Bytes::get_native_u2(p); | |
| 93 else return Bytes::get_Java_u2(p); | |
| 94 } | |
| 1602 | 95 int get_index_u1_cpcache(Bytecodes::Code bc) const { |
| 96 assert_same_format_as(bc); assert_index_size(1, bc); | |
| 97 return *(jubyte*)addr_at(1) + constantPoolOopDesc::CPCACHE_INDEX_TAG; | |
| 98 } | |
| 1565 | 99 int get_index_u2_cpcache(Bytecodes::Code bc) const { |
| 100 assert_same_format_as(bc); assert_index_size(2, bc); assert_native_index(bc); | |
| 1602 | 101 return Bytes::get_native_u2(addr_at(1)) + constantPoolOopDesc::CPCACHE_INDEX_TAG; |
| 1565 | 102 } |
| 103 int get_index_u4(Bytecodes::Code bc) const { | |
| 104 assert_same_format_as(bc); assert_index_size(4, bc); | |
| 105 assert(can_use_native_byte_order(bc), ""); | |
| 106 return Bytes::get_native_u4(addr_at(1)); | |
| 107 } | |
| 108 bool has_index_u4(Bytecodes::Code bc) const { | |
| 109 return bc == Bytecodes::_invokedynamic; | |
| 110 } | |
| 111 | |
| 112 int get_offset_s2(Bytecodes::Code bc) const { | |
| 113 assert_same_format_as(bc); assert_offset_size(2, bc); | |
| 114 return (jshort) Bytes::get_Java_u2(addr_at(1)); | |
| 115 } | |
| 116 int get_offset_s4(Bytecodes::Code bc) const { | |
| 117 assert_same_format_as(bc); assert_offset_size(4, bc); | |
| 118 return (jint) Bytes::get_Java_u4(addr_at(1)); | |
| 119 } | |
| 120 | |
| 121 int get_constant_u1(int offset, Bytecodes::Code bc) const { | |
| 122 assert_same_format_as(bc); assert_constant_size(1, offset, bc); | |
| 123 return *(jbyte*)addr_at(offset); | |
| 124 } | |
| 125 int get_constant_u2(int offset, Bytecodes::Code bc, bool is_wide = false) const { | |
| 126 assert_same_format_as(bc, is_wide); assert_constant_size(2, offset, bc, is_wide); | |
| 127 return (jshort) Bytes::get_Java_u2(addr_at(offset)); | |
| 128 } | |
| 129 | |
| 130 // These are used locally and also from bytecode streams. | |
| 131 void assert_same_format_as(Bytecodes::Code testbc, bool is_wide = false) const NOT_DEBUG_RETURN; | |
| 132 static void assert_index_size(int required_size, Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; | |
| 133 static void assert_offset_size(int required_size, Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; | |
| 134 static void assert_constant_size(int required_size, int where, Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; | |
| 135 static void assert_native_index(Bytecodes::Code bc, bool is_wide = false) NOT_DEBUG_RETURN; | |
| 136 static bool can_use_native_byte_order(Bytecodes::Code bc, bool is_wide = false) { | |
| 137 return (!Bytes::is_Java_byte_ordering_different() || Bytecodes::native_byte_order(bc /*, is_wide*/)); | |
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138 } |
| 0 | 139 }; |
| 140 | |
| 141 inline Bytecode* Bytecode_at(address bcp) { | |
| 1565 | 142 // Warning: Use with caution on live bytecode streams. 4926272 |
| 0 | 143 return (Bytecode*)bcp; |
| 144 } | |
| 145 | |
| 146 | |
| 147 // Abstractions for lookupswitch bytecode | |
| 148 | |
| 149 class LookupswitchPair: ThisRelativeObj { | |
| 150 private: | |
| 151 int _match; | |
| 152 int _offset; | |
| 153 | |
| 154 public: | |
| 1565 | 155 int match() const { return get_Java_u4_at(0 * jintSize); } |
| 156 int offset() const { return get_Java_u4_at(1 * jintSize); } | |
| 0 | 157 }; |
| 158 | |
| 159 | |
| 160 class Bytecode_lookupswitch: public Bytecode { | |
| 161 public: | |
| 162 void verify() const PRODUCT_RETURN; | |
| 163 | |
| 164 // Attributes | |
| 1565 | 165 int default_offset() const { return get_Java_u4_at(aligned_offset(1 + 0*jintSize)); } |
| 166 int number_of_pairs() const { return get_Java_u4_at(aligned_offset(1 + 1*jintSize)); } | |
| 0 | 167 LookupswitchPair* pair_at(int i) const { assert(0 <= i && i < number_of_pairs(), "pair index out of bounds"); |
| 168 return (LookupswitchPair*)aligned_addr_at(1 + (1 + i)*2*jintSize); } | |
| 169 // Creation | |
| 170 inline friend Bytecode_lookupswitch* Bytecode_lookupswitch_at(address bcp); | |
| 171 }; | |
| 172 | |
| 173 inline Bytecode_lookupswitch* Bytecode_lookupswitch_at(address bcp) { | |
| 174 Bytecode_lookupswitch* b = (Bytecode_lookupswitch*)bcp; | |
| 1602 | 175 DEBUG_ONLY(b->verify()); |
| 0 | 176 return b; |
| 177 } | |
| 178 | |
| 179 | |
| 180 class Bytecode_tableswitch: public Bytecode { | |
| 181 public: | |
| 182 void verify() const PRODUCT_RETURN; | |
| 183 | |
| 184 // Attributes | |
| 1565 | 185 int default_offset() const { return get_Java_u4_at(aligned_offset(1 + 0*jintSize)); } |
| 186 int low_key() const { return get_Java_u4_at(aligned_offset(1 + 1*jintSize)); } | |
| 187 int high_key() const { return get_Java_u4_at(aligned_offset(1 + 2*jintSize)); } | |
| 0 | 188 int dest_offset_at(int i) const; |
| 189 int length() { return high_key()-low_key()+1; } | |
| 190 | |
| 191 // Creation | |
| 192 inline friend Bytecode_tableswitch* Bytecode_tableswitch_at(address bcp); | |
| 193 }; | |
| 194 | |
| 195 inline Bytecode_tableswitch* Bytecode_tableswitch_at(address bcp) { | |
| 196 Bytecode_tableswitch* b = (Bytecode_tableswitch*)bcp; | |
| 1602 | 197 DEBUG_ONLY(b->verify()); |
| 0 | 198 return b; |
| 199 } | |
| 200 | |
| 201 | |
| 1602 | 202 // Common code for decoding invokes and field references. |
| 0 | 203 |
| 1602 | 204 class Bytecode_member_ref: public ResourceObj { |
| 0 | 205 protected: |
| 206 methodHandle _method; // method containing the bytecode | |
| 207 int _bci; // position of the bytecode | |
| 208 | |
| 1602 | 209 Bytecode_member_ref(methodHandle method, int bci) : _method(method), _bci(bci) {} |
| 210 | |
| 211 public: | |
| 212 // Attributes | |
| 213 methodHandle method() const { return _method; } | |
| 214 int bci() const { return _bci; } | |
| 215 address bcp() const { return _method->bcp_from(bci()); } | |
| 216 Bytecode* bytecode() const { return Bytecode_at(bcp()); } | |
| 217 | |
| 218 int index() const; // cache index (loaded from instruction) | |
| 219 int pool_index() const; // constant pool index | |
| 220 symbolOop name() const; // returns the name of the method or field | |
| 221 symbolOop signature() const; // returns the signature of the method or field | |
| 222 | |
| 223 BasicType result_type(Thread* thread) const; // returns the result type of the getfield or invoke | |
| 224 | |
| 225 Bytecodes::Code code() const { return Bytecodes::code_at(bcp(), _method()); } | |
| 226 Bytecodes::Code java_code() const { return Bytecodes::java_code(code()); } | |
| 227 }; | |
| 228 | |
| 229 // Abstraction for invoke_{virtual, static, interface, special} | |
| 230 | |
| 231 class Bytecode_invoke: public Bytecode_member_ref { | |
| 232 protected: | |
| 233 Bytecode_invoke(methodHandle method, int bci) : Bytecode_member_ref(method, bci) {} | |
| 0 | 234 |
| 235 public: | |
| 236 void verify() const; | |
| 237 | |
| 238 // Attributes | |
| 239 methodHandle static_target(TRAPS); // "specified" method (from constant pool) | |
| 240 | |
| 241 // Testers | |
| 1602 | 242 bool is_invokeinterface() const { return java_code() == Bytecodes::_invokeinterface; } |
| 243 bool is_invokevirtual() const { return java_code() == Bytecodes::_invokevirtual; } | |
| 244 bool is_invokestatic() const { return java_code() == Bytecodes::_invokestatic; } | |
| 245 bool is_invokespecial() const { return java_code() == Bytecodes::_invokespecial; } | |
| 246 bool is_invokedynamic() const { return java_code() == Bytecodes::_invokedynamic; } | |
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247 |
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248 bool has_receiver() const { return !is_invokestatic() && !is_invokedynamic(); } |
| 0 | 249 |
| 250 bool is_valid() const { return is_invokeinterface() || | |
| 251 is_invokevirtual() || | |
| 252 is_invokestatic() || | |
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253 is_invokespecial() || |
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254 is_invokedynamic(); } |
| 0 | 255 |
| 256 // Creation | |
| 257 inline friend Bytecode_invoke* Bytecode_invoke_at(methodHandle method, int bci); | |
| 258 | |
| 259 // Like Bytecode_invoke_at. Instead it returns NULL if the bci is not at an invoke. | |
| 260 inline friend Bytecode_invoke* Bytecode_invoke_at_check(methodHandle method, int bci); | |
| 261 }; | |
| 262 | |
| 263 inline Bytecode_invoke* Bytecode_invoke_at(methodHandle method, int bci) { | |
| 264 Bytecode_invoke* b = new Bytecode_invoke(method, bci); | |
| 1602 | 265 DEBUG_ONLY(b->verify()); |
| 0 | 266 return b; |
| 267 } | |
| 268 | |
| 269 inline Bytecode_invoke* Bytecode_invoke_at_check(methodHandle method, int bci) { | |
| 270 Bytecode_invoke* b = new Bytecode_invoke(method, bci); | |
| 271 return b->is_valid() ? b : NULL; | |
| 272 } | |
| 273 | |
| 274 | |
| 1602 | 275 // Abstraction for all field accesses (put/get field/static) |
| 276 class Bytecode_field: public Bytecode_member_ref { | |
| 277 protected: | |
| 278 Bytecode_field(methodHandle method, int bci) : Bytecode_member_ref(method, bci) {} | |
| 279 | |
| 280 public: | |
| 281 // Testers | |
| 282 bool is_getfield() const { return java_code() == Bytecodes::_getfield; } | |
| 283 bool is_putfield() const { return java_code() == Bytecodes::_putfield; } | |
| 284 bool is_getstatic() const { return java_code() == Bytecodes::_getstatic; } | |
| 285 bool is_putstatic() const { return java_code() == Bytecodes::_putstatic; } | |
| 286 | |
| 287 bool is_getter() const { return is_getfield() || is_getstatic(); } | |
| 288 bool is_static() const { return is_getstatic() || is_putstatic(); } | |
| 289 | |
| 290 bool is_valid() const { return is_getfield() || | |
| 291 is_putfield() || | |
| 292 is_getstatic() || | |
| 293 is_putstatic(); } | |
| 0 | 294 void verify() const; |
| 295 | |
| 296 // Creation | |
| 1602 | 297 inline friend Bytecode_field* Bytecode_field_at(methodHandle method, int bci); |
| 0 | 298 }; |
| 299 | |
| 1602 | 300 inline Bytecode_field* Bytecode_field_at(methodHandle method, int bci) { |
| 301 Bytecode_field* b = new Bytecode_field(method, bci); | |
| 302 DEBUG_ONLY(b->verify()); | |
| 0 | 303 return b; |
| 304 } | |
| 305 | |
| 306 | |
| 307 // Abstraction for checkcast | |
| 308 | |
| 309 class Bytecode_checkcast: public Bytecode { | |
| 310 public: | |
| 311 void verify() const { assert(Bytecodes::java_code(code()) == Bytecodes::_checkcast, "check checkcast"); } | |
| 312 | |
| 313 // Returns index | |
| 1565 | 314 long index() const { return get_index_u2(Bytecodes::_checkcast); }; |
| 0 | 315 |
| 316 // Creation | |
| 317 inline friend Bytecode_checkcast* Bytecode_checkcast_at(address bcp); | |
| 318 }; | |
| 319 | |
| 320 inline Bytecode_checkcast* Bytecode_checkcast_at(address bcp) { | |
| 321 Bytecode_checkcast* b = (Bytecode_checkcast*)bcp; | |
| 1602 | 322 DEBUG_ONLY(b->verify()); |
| 0 | 323 return b; |
| 324 } | |
| 325 | |
| 326 | |
| 327 // Abstraction for instanceof | |
| 328 | |
| 329 class Bytecode_instanceof: public Bytecode { | |
| 330 public: | |
| 331 void verify() const { assert(code() == Bytecodes::_instanceof, "check instanceof"); } | |
| 332 | |
| 333 // Returns index | |
| 1565 | 334 long index() const { return get_index_u2(Bytecodes::_instanceof); }; |
| 0 | 335 |
| 336 // Creation | |
| 337 inline friend Bytecode_instanceof* Bytecode_instanceof_at(address bcp); | |
| 338 }; | |
| 339 | |
| 340 inline Bytecode_instanceof* Bytecode_instanceof_at(address bcp) { | |
| 341 Bytecode_instanceof* b = (Bytecode_instanceof*)bcp; | |
| 1602 | 342 DEBUG_ONLY(b->verify()); |
| 0 | 343 return b; |
| 344 } | |
| 345 | |
| 346 | |
| 347 class Bytecode_new: public Bytecode { | |
| 348 public: | |
| 349 void verify() const { assert(java_code() == Bytecodes::_new, "check new"); } | |
| 350 | |
| 351 // Returns index | |
| 1565 | 352 long index() const { return get_index_u2(Bytecodes::_new); }; |
| 0 | 353 |
| 354 // Creation | |
| 355 inline friend Bytecode_new* Bytecode_new_at(address bcp); | |
| 356 }; | |
| 357 | |
| 358 inline Bytecode_new* Bytecode_new_at(address bcp) { | |
| 359 Bytecode_new* b = (Bytecode_new*)bcp; | |
| 1602 | 360 DEBUG_ONLY(b->verify()); |
| 0 | 361 return b; |
| 362 } | |
| 363 | |
| 364 | |
| 365 class Bytecode_multianewarray: public Bytecode { | |
| 366 public: | |
| 367 void verify() const { assert(java_code() == Bytecodes::_multianewarray, "check new"); } | |
| 368 | |
| 369 // Returns index | |
| 1565 | 370 long index() const { return get_index_u2(Bytecodes::_multianewarray); }; |
| 0 | 371 |
| 372 // Creation | |
| 373 inline friend Bytecode_multianewarray* Bytecode_multianewarray_at(address bcp); | |
| 374 }; | |
| 375 | |
| 376 inline Bytecode_multianewarray* Bytecode_multianewarray_at(address bcp) { | |
| 377 Bytecode_multianewarray* b = (Bytecode_multianewarray*)bcp; | |
| 1602 | 378 DEBUG_ONLY(b->verify()); |
| 0 | 379 return b; |
| 380 } | |
| 381 | |
| 382 | |
| 383 class Bytecode_anewarray: public Bytecode { | |
| 384 public: | |
| 385 void verify() const { assert(java_code() == Bytecodes::_anewarray, "check anewarray"); } | |
| 386 | |
| 387 // Returns index | |
| 1565 | 388 long index() const { return get_index_u2(Bytecodes::_anewarray); }; |
| 0 | 389 |
| 390 // Creation | |
| 391 inline friend Bytecode_anewarray* Bytecode_anewarray_at(address bcp); | |
| 392 }; | |
| 393 | |
| 394 inline Bytecode_anewarray* Bytecode_anewarray_at(address bcp) { | |
| 395 Bytecode_anewarray* b = (Bytecode_anewarray*)bcp; | |
| 1602 | 396 DEBUG_ONLY(b->verify()); |
| 0 | 397 return b; |
| 398 } | |
| 399 | |
| 400 | |
| 401 // Abstraction for ldc, ldc_w and ldc2_w | |
| 402 | |
| 1602 | 403 class Bytecode_loadconstant: public ResourceObj { |
| 404 private: | |
| 405 int _bci; | |
| 406 methodHandle _method; | |
| 407 | |
| 408 Bytecodes::Code code() const { return bytecode()->code(); } | |
| 409 | |
| 410 int raw_index() const; | |
| 411 | |
| 412 Bytecode_loadconstant(methodHandle method, int bci) : _method(method), _bci(bci) {} | |
| 413 | |
| 0 | 414 public: |
| 1602 | 415 // Attributes |
| 416 methodHandle method() const { return _method; } | |
| 417 int bci() const { return _bci; } | |
| 418 address bcp() const { return _method->bcp_from(bci()); } | |
| 419 Bytecode* bytecode() const { return Bytecode_at(bcp()); } | |
| 420 | |
| 0 | 421 void verify() const { |
| 1602 | 422 assert(_method.not_null(), "must supply method"); |
| 0 | 423 Bytecodes::Code stdc = Bytecodes::java_code(code()); |
| 424 assert(stdc == Bytecodes::_ldc || | |
| 425 stdc == Bytecodes::_ldc_w || | |
| 426 stdc == Bytecodes::_ldc2_w, "load constant"); | |
| 427 } | |
| 428 | |
| 1602 | 429 // Only non-standard bytecodes (fast_aldc) have CP cache indexes. |
| 430 bool has_cache_index() const { return code() >= Bytecodes::number_of_java_codes; } | |
| 0 | 431 |
| 1602 | 432 int pool_index() const; // index into constant pool |
| 433 int cache_index() const { // index into CP cache (or -1 if none) | |
| 434 return has_cache_index() ? raw_index() : -1; | |
| 435 } | |
| 436 | |
| 437 BasicType result_type() const; // returns the result type of the ldc | |
| 438 | |
| 439 oop resolve_constant(TRAPS) const; | |
| 440 | |
| 441 // Creation | |
| 442 inline friend Bytecode_loadconstant* Bytecode_loadconstant_at(methodHandle method, int bci); | |
| 0 | 443 }; |
| 444 | |
| 1602 | 445 inline Bytecode_loadconstant* Bytecode_loadconstant_at(methodHandle method, int bci) { |
| 446 Bytecode_loadconstant* b = new Bytecode_loadconstant(method, bci); | |
| 447 DEBUG_ONLY(b->verify()); | |
| 0 | 448 return b; |
| 449 } | |
| 1972 | 450 |
| 451 #endif // SHARE_VM_INTERPRETER_BYTECODE_HPP |