Mercurial > hg > truffle
annotate src/share/vm/code/codeBlob.hpp @ 1155:4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
Summary: More informative disassembly in product mode. Also, a more consistent CompileCommand syntax.
Reviewed-by: never
| author | jrose |
|---|---|
| date | Fri, 08 Jan 2010 13:47:01 -0800 |
| parents | e66fd840cb6b |
| children | 9eba43136cb5 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright 1998-2009 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // CodeBlob - superclass for all entries in the CodeCache. | |
| 26 // | |
| 27 // Suptypes are: | |
| 28 // nmethod : Compiled Java methods (include method that calls to native code) | |
| 29 // RuntimeStub : Call to VM runtime methods | |
| 30 // DeoptimizationBlob : Used for deoptimizatation | |
| 31 // ExceptionBlob : Used for stack unrolling | |
| 32 // SafepointBlob : Used to handle illegal instruction exceptions | |
| 33 // | |
| 34 // | |
| 35 // Layout: | |
| 36 // - header | |
| 37 // - relocation | |
| 38 // - instruction space | |
| 39 // - data space | |
| 40 class DeoptimizationBlob; | |
| 41 | |
| 42 class CodeBlob VALUE_OBJ_CLASS_SPEC { | |
| 43 | |
| 44 friend class VMStructs; | |
| 45 | |
| 46 private: | |
| 47 const char* _name; | |
| 48 int _size; // total size of CodeBlob in bytes | |
| 49 int _header_size; // size of header (depends on subclass) | |
| 50 int _relocation_size; // size of relocation | |
| 51 int _instructions_offset; // offset to where instructions region begins | |
| 52 int _frame_complete_offset; // instruction offsets in [0.._frame_complete_offset) have | |
| 53 // not finished setting up their frame. Beware of pc's in | |
| 54 // that range. There is a similar range(s) on returns | |
| 55 // which we don't detect. | |
| 56 int _data_offset; // offset to where data region begins | |
| 57 int _oops_offset; // offset to where embedded oop table begins (inside data) | |
| 58 int _oops_length; // number of embedded oops | |
| 59 int _frame_size; // size of stack frame | |
| 60 OopMapSet* _oop_maps; // OopMap for this CodeBlob | |
| 61 CodeComments _comments; | |
| 62 | |
| 63 friend class OopRecorder; | |
| 64 | |
| 65 void fix_oop_relocations(address begin, address end, bool initialize_immediates); | |
| 66 inline void initialize_immediate_oop(oop* dest, jobject handle); | |
| 67 | |
| 68 public: | |
| 69 // Returns the space needed for CodeBlob | |
| 70 static unsigned int allocation_size(CodeBuffer* cb, int header_size); | |
| 71 | |
| 72 // Creation | |
| 73 // a) simple CodeBlob | |
| 74 // frame_complete is the offset from the beginning of the instructions | |
| 75 // to where the frame setup (from stackwalk viewpoint) is complete. | |
| 76 CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size); | |
| 77 | |
| 78 // b) full CodeBlob | |
| 79 CodeBlob( | |
| 80 const char* name, | |
| 81 CodeBuffer* cb, | |
| 82 int header_size, | |
| 83 int size, | |
| 84 int frame_complete, | |
| 85 int frame_size, | |
| 86 OopMapSet* oop_maps | |
| 87 ); | |
| 88 | |
| 89 // Deletion | |
| 90 void flush(); | |
| 91 | |
| 92 // Typing | |
| 93 virtual bool is_buffer_blob() const { return false; } | |
| 94 virtual bool is_nmethod() const { return false; } | |
| 95 virtual bool is_runtime_stub() const { return false; } | |
| 96 virtual bool is_deoptimization_stub() const { return false; } | |
| 97 virtual bool is_uncommon_trap_stub() const { return false; } | |
| 98 virtual bool is_exception_stub() const { return false; } | |
| 99 virtual bool is_safepoint_stub() const { return false; } | |
| 100 virtual bool is_adapter_blob() const { return false; } | |
| 101 | |
| 102 virtual bool is_compiled_by_c2() const { return false; } | |
| 103 virtual bool is_compiled_by_c1() const { return false; } | |
| 104 | |
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105 // Casting |
|
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106 nmethod* as_nmethod_or_null() { return is_nmethod() ? (nmethod*) this : NULL; } |
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twisti
parents:
989
diff
changeset
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107 |
| 0 | 108 // Boundaries |
| 109 address header_begin() const { return (address) this; } | |
| 110 address header_end() const { return ((address) this) + _header_size; }; | |
| 111 relocInfo* relocation_begin() const { return (relocInfo*) header_end(); }; | |
| 112 relocInfo* relocation_end() const { return (relocInfo*)(header_end() + _relocation_size); } | |
| 113 address instructions_begin() const { return (address) header_begin() + _instructions_offset; } | |
| 114 address instructions_end() const { return (address) header_begin() + _data_offset; } | |
| 115 address data_begin() const { return (address) header_begin() + _data_offset; } | |
| 116 address data_end() const { return (address) header_begin() + _size; } | |
| 117 oop* oops_begin() const { return (oop*) (header_begin() + _oops_offset); } | |
| 118 oop* oops_end() const { return oops_begin() + _oops_length; } | |
| 119 | |
| 120 // Offsets | |
| 121 int relocation_offset() const { return _header_size; } | |
| 122 int instructions_offset() const { return _instructions_offset; } | |
| 123 int data_offset() const { return _data_offset; } | |
| 124 int oops_offset() const { return _oops_offset; } | |
| 125 | |
| 126 // Sizes | |
| 127 int size() const { return _size; } | |
| 128 int header_size() const { return _header_size; } | |
| 129 int relocation_size() const { return (address) relocation_end() - (address) relocation_begin(); } | |
| 130 int instructions_size() const { return instructions_end() - instructions_begin(); } | |
| 131 int data_size() const { return data_end() - data_begin(); } | |
| 132 int oops_size() const { return (address) oops_end() - (address) oops_begin(); } | |
| 133 | |
| 134 // Containment | |
| 135 bool blob_contains(address addr) const { return header_begin() <= addr && addr < data_end(); } | |
| 136 bool relocation_contains(relocInfo* addr) const{ return relocation_begin() <= addr && addr < relocation_end(); } | |
| 137 bool instructions_contains(address addr) const { return instructions_begin() <= addr && addr < instructions_end(); } | |
| 138 bool data_contains(address addr) const { return data_begin() <= addr && addr < data_end(); } | |
| 139 bool oops_contains(oop* addr) const { return oops_begin() <= addr && addr < oops_end(); } | |
| 140 bool contains(address addr) const { return instructions_contains(addr); } | |
| 141 bool is_frame_complete_at(address addr) const { return instructions_contains(addr) && | |
| 142 addr >= instructions_begin() + _frame_complete_offset; } | |
| 143 | |
| 144 // Relocation support | |
| 145 void fix_oop_relocations(address begin, address end) { | |
| 146 fix_oop_relocations(begin, end, false); | |
| 147 } | |
| 148 void fix_oop_relocations() { | |
| 149 fix_oop_relocations(NULL, NULL, false); | |
| 150 } | |
| 151 relocInfo::relocType reloc_type_for_address(address pc); | |
| 152 bool is_at_poll_return(address pc); | |
| 153 bool is_at_poll_or_poll_return(address pc); | |
| 154 | |
| 155 // Support for oops in scopes and relocs: | |
| 156 // Note: index 0 is reserved for null. | |
| 157 oop oop_at(int index) const { return index == 0? (oop)NULL: *oop_addr_at(index); } | |
| 158 oop* oop_addr_at(int index) const{ // for GC | |
| 159 // relocation indexes are biased by 1 (because 0 is reserved) | |
| 160 assert(index > 0 && index <= _oops_length, "must be a valid non-zero index"); | |
| 161 return &oops_begin()[index-1]; | |
| 162 } | |
| 163 | |
| 164 void copy_oops(GrowableArray<jobject>* oops); | |
| 165 | |
| 166 // CodeCache support: really only used by the nmethods, but in order to get | |
| 167 // asserts and certain bookkeeping to work in the CodeCache they are defined | |
| 168 // virtual here. | |
| 169 virtual bool is_zombie() const { return false; } | |
| 170 virtual bool is_locked_by_vm() const { return false; } | |
| 171 | |
| 172 virtual bool is_unloaded() const { return false; } | |
| 173 virtual bool is_not_entrant() const { return false; } | |
| 174 | |
| 175 // GC support | |
| 176 virtual bool is_alive() const = 0; | |
| 177 virtual void do_unloading(BoolObjectClosure* is_alive, | |
| 178 OopClosure* keep_alive, | |
| 179 bool unloading_occurred); | |
| 180 virtual void oops_do(OopClosure* f) = 0; | |
| 989 | 181 // (All CodeBlob subtypes other than NMethod currently have |
| 182 // an empty oops_do() method. | |
| 0 | 183 |
| 184 // OopMap for frame | |
| 185 OopMapSet* oop_maps() const { return _oop_maps; } | |
| 186 void set_oop_maps(OopMapSet* p); | |
| 187 OopMap* oop_map_for_return_address(address return_address); | |
| 188 virtual void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { ShouldNotReachHere(); } | |
| 189 | |
| 190 // Frame support | |
| 191 int frame_size() const { return _frame_size; } | |
| 192 void set_frame_size(int size) { _frame_size = size; } | |
| 193 | |
| 194 // Returns true, if the next frame is responsible for GC'ing oops passed as arguments | |
| 195 virtual bool caller_must_gc_arguments(JavaThread* thread) const { return false; } | |
| 196 | |
| 197 // Naming | |
| 198 const char* name() const { return _name; } | |
| 199 void set_name(const char* name) { _name = name; } | |
| 200 | |
| 201 // Debugging | |
| 202 virtual void verify(); | |
| 203 virtual void print() const PRODUCT_RETURN; | |
| 204 virtual void print_value_on(outputStream* st) const PRODUCT_RETURN; | |
| 205 | |
| 206 // Print the comment associated with offset on stream, if there is one | |
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207 virtual void print_block_comment(outputStream* stream, address block_begin) { |
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6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
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diff
changeset
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208 intptr_t offset = (intptr_t)(block_begin - instructions_begin()); |
| 0 | 209 _comments.print_block_comment(stream, offset); |
| 210 } | |
| 211 | |
| 212 // Transfer ownership of comments to this CodeBlob | |
| 213 void set_comments(CodeComments& comments) { | |
| 214 _comments.assign(comments); | |
| 215 } | |
| 216 }; | |
| 217 | |
| 218 | |
| 219 //---------------------------------------------------------------------------------------------------- | |
| 220 // BufferBlob: used to hold non-relocatable machine code such as the interpreter, stubroutines, etc. | |
| 221 | |
| 222 class BufferBlob: public CodeBlob { | |
| 223 friend class VMStructs; | |
| 224 private: | |
| 225 // Creation support | |
| 226 BufferBlob(const char* name, int size); | |
| 227 BufferBlob(const char* name, int size, CodeBuffer* cb); | |
| 228 | |
| 229 void* operator new(size_t s, unsigned size); | |
| 230 | |
| 231 public: | |
| 232 // Creation | |
| 233 static BufferBlob* create(const char* name, int buffer_size); | |
| 234 static BufferBlob* create(const char* name, CodeBuffer* cb); | |
| 235 | |
| 236 static void free(BufferBlob* buf); | |
| 237 | |
| 238 // Typing | |
| 239 bool is_buffer_blob() const { return true; } | |
| 240 bool is_adapter_blob() const; | |
| 241 | |
| 242 // GC/Verification support | |
| 243 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ } | |
| 244 bool is_alive() const { return true; } | |
| 245 void do_unloading(BoolObjectClosure* is_alive, | |
| 246 OopClosure* keep_alive, | |
| 247 bool unloading_occurred) { /* do nothing */ } | |
| 248 | |
| 249 void oops_do(OopClosure* f) { /* do nothing*/ } | |
| 250 | |
| 251 void verify(); | |
| 252 void print() const PRODUCT_RETURN; | |
| 253 void print_value_on(outputStream* st) const PRODUCT_RETURN; | |
| 254 }; | |
| 255 | |
| 256 | |
| 257 //---------------------------------------------------------------------------------------------------- | |
| 258 // RuntimeStub: describes stubs used by compiled code to call a (static) C++ runtime routine | |
| 259 | |
| 260 class RuntimeStub: public CodeBlob { | |
| 261 friend class VMStructs; | |
| 262 private: | |
| 263 bool _caller_must_gc_arguments; | |
| 264 | |
| 265 // Creation support | |
| 266 RuntimeStub( | |
| 267 const char* name, | |
| 268 CodeBuffer* cb, | |
| 269 int size, | |
| 270 int frame_complete, | |
| 271 int frame_size, | |
| 272 OopMapSet* oop_maps, | |
| 273 bool caller_must_gc_arguments | |
| 274 ); | |
| 275 | |
| 276 void* operator new(size_t s, unsigned size); | |
| 277 | |
| 278 public: | |
| 279 // Creation | |
| 280 static RuntimeStub* new_runtime_stub( | |
| 281 const char* stub_name, | |
| 282 CodeBuffer* cb, | |
| 283 int frame_complete, | |
| 284 int frame_size, | |
| 285 OopMapSet* oop_maps, | |
| 286 bool caller_must_gc_arguments | |
| 287 ); | |
| 288 | |
| 289 // Typing | |
| 290 bool is_runtime_stub() const { return true; } | |
| 291 | |
| 292 // GC support | |
| 293 bool caller_must_gc_arguments(JavaThread* thread) const { return _caller_must_gc_arguments; } | |
| 294 | |
| 295 address entry_point() { return instructions_begin(); } | |
| 296 | |
| 297 // GC/Verification support | |
| 298 void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* nothing to do */ } | |
| 299 bool is_alive() const { return true; } | |
| 300 void do_unloading(BoolObjectClosure* is_alive, | |
| 301 OopClosure* keep_alive, | |
| 302 bool unloading_occurred) { /* do nothing */ } | |
| 303 void oops_do(OopClosure* f) { /* do-nothing*/ } | |
| 304 | |
| 305 void verify(); | |
| 306 void print() const PRODUCT_RETURN; | |
| 307 void print_value_on(outputStream* st) const PRODUCT_RETURN; | |
| 308 }; | |
| 309 | |
| 310 | |
| 311 //---------------------------------------------------------------------------------------------------- | |
| 312 // Super-class for all blobs that exist in only one instance. Implements default behaviour. | |
| 313 | |
| 314 class SingletonBlob: public CodeBlob { | |
| 315 friend class VMStructs; | |
| 316 public: | |
| 317 SingletonBlob( | |
| 318 const char* name, | |
| 319 CodeBuffer* cb, | |
| 320 int header_size, | |
| 321 int size, | |
| 322 int frame_size, | |
| 323 OopMapSet* oop_maps | |
| 324 ) | |
| 325 : CodeBlob(name, cb, header_size, size, CodeOffsets::frame_never_safe, frame_size, oop_maps) | |
| 326 {}; | |
| 327 | |
| 328 bool is_alive() const { return true; } | |
| 329 void do_unloading(BoolObjectClosure* is_alive, | |
| 330 OopClosure* keep_alive, | |
| 331 bool unloading_occurred) { /* do-nothing*/ } | |
| 332 | |
| 333 void verify(); // does nothing | |
| 334 void print() const PRODUCT_RETURN; | |
| 335 void print_value_on(outputStream* st) const PRODUCT_RETURN; | |
| 336 }; | |
| 337 | |
| 338 | |
| 339 //---------------------------------------------------------------------------------------------------- | |
| 340 // DeoptimizationBlob | |
| 341 | |
| 342 class DeoptimizationBlob: public SingletonBlob { | |
| 343 friend class VMStructs; | |
| 344 private: | |
| 345 int _unpack_offset; | |
| 346 int _unpack_with_exception; | |
| 347 int _unpack_with_reexecution; | |
| 348 | |
| 349 int _unpack_with_exception_in_tls; | |
| 350 | |
| 351 // Creation support | |
| 352 DeoptimizationBlob( | |
| 353 CodeBuffer* cb, | |
| 354 int size, | |
| 355 OopMapSet* oop_maps, | |
| 356 int unpack_offset, | |
| 357 int unpack_with_exception_offset, | |
| 358 int unpack_with_reexecution_offset, | |
| 359 int frame_size | |
| 360 ); | |
| 361 | |
| 362 void* operator new(size_t s, unsigned size); | |
| 363 | |
| 364 public: | |
| 365 // Creation | |
| 366 static DeoptimizationBlob* create( | |
| 367 CodeBuffer* cb, | |
| 368 OopMapSet* oop_maps, | |
| 369 int unpack_offset, | |
| 370 int unpack_with_exception_offset, | |
| 371 int unpack_with_reexecution_offset, | |
| 372 int frame_size | |
| 373 ); | |
| 374 | |
| 375 // Typing | |
| 376 bool is_deoptimization_stub() const { return true; } | |
| 377 const DeoptimizationBlob *as_deoptimization_stub() const { return this; } | |
| 378 bool exception_address_is_unpack_entry(address pc) const { | |
| 379 address unpack_pc = unpack(); | |
| 380 return (pc == unpack_pc || (pc + frame::pc_return_offset) == unpack_pc); | |
| 381 } | |
| 382 | |
| 383 | |
| 384 | |
| 385 | |
| 386 // GC for args | |
| 387 void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* Nothing to do */ } | |
| 388 | |
| 389 // Iteration | |
| 390 void oops_do(OopClosure* f) {} | |
| 391 | |
| 392 // Printing | |
| 393 void print_value_on(outputStream* st) const PRODUCT_RETURN; | |
| 394 | |
| 395 address unpack() const { return instructions_begin() + _unpack_offset; } | |
| 396 address unpack_with_exception() const { return instructions_begin() + _unpack_with_exception; } | |
| 397 address unpack_with_reexecution() const { return instructions_begin() + _unpack_with_reexecution; } | |
| 398 | |
| 399 // Alternate entry point for C1 where the exception and issuing pc | |
| 400 // are in JavaThread::_exception_oop and JavaThread::_exception_pc | |
| 401 // instead of being in registers. This is needed because C1 doesn't | |
| 402 // model exception paths in a way that keeps these registers free so | |
| 403 // there may be live values in those registers during deopt. | |
| 404 void set_unpack_with_exception_in_tls_offset(int offset) { | |
| 405 _unpack_with_exception_in_tls = offset; | |
| 406 assert(contains(instructions_begin() + _unpack_with_exception_in_tls), "must be PC inside codeblob"); | |
| 407 } | |
| 408 address unpack_with_exception_in_tls() const { return instructions_begin() + _unpack_with_exception_in_tls; } | |
| 409 }; | |
| 410 | |
| 411 | |
| 412 //---------------------------------------------------------------------------------------------------- | |
| 413 // UncommonTrapBlob (currently only used by Compiler 2) | |
| 414 | |
| 415 #ifdef COMPILER2 | |
| 416 | |
| 417 class UncommonTrapBlob: public SingletonBlob { | |
| 418 friend class VMStructs; | |
| 419 private: | |
| 420 // Creation support | |
| 421 UncommonTrapBlob( | |
| 422 CodeBuffer* cb, | |
| 423 int size, | |
| 424 OopMapSet* oop_maps, | |
| 425 int frame_size | |
| 426 ); | |
| 427 | |
| 428 void* operator new(size_t s, unsigned size); | |
| 429 | |
| 430 public: | |
| 431 // Creation | |
| 432 static UncommonTrapBlob* create( | |
| 433 CodeBuffer* cb, | |
| 434 OopMapSet* oop_maps, | |
| 435 int frame_size | |
| 436 ); | |
| 437 | |
| 438 // GC for args | |
| 439 void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* nothing to do */ } | |
| 440 | |
| 441 // Typing | |
| 442 bool is_uncommon_trap_stub() const { return true; } | |
| 443 | |
| 444 // Iteration | |
| 445 void oops_do(OopClosure* f) {} | |
| 446 }; | |
| 447 | |
| 448 | |
| 449 //---------------------------------------------------------------------------------------------------- | |
| 450 // ExceptionBlob: used for exception unwinding in compiled code (currently only used by Compiler 2) | |
| 451 | |
| 452 class ExceptionBlob: public SingletonBlob { | |
| 453 friend class VMStructs; | |
| 454 private: | |
| 455 // Creation support | |
| 456 ExceptionBlob( | |
| 457 CodeBuffer* cb, | |
| 458 int size, | |
| 459 OopMapSet* oop_maps, | |
| 460 int frame_size | |
| 461 ); | |
| 462 | |
| 463 void* operator new(size_t s, unsigned size); | |
| 464 | |
| 465 public: | |
| 466 // Creation | |
| 467 static ExceptionBlob* create( | |
| 468 CodeBuffer* cb, | |
| 469 OopMapSet* oop_maps, | |
| 470 int frame_size | |
| 471 ); | |
| 472 | |
| 473 // GC for args | |
| 474 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ } | |
| 475 | |
| 476 // Typing | |
| 477 bool is_exception_stub() const { return true; } | |
| 478 | |
| 479 // Iteration | |
| 480 void oops_do(OopClosure* f) {} | |
| 481 }; | |
| 482 #endif // COMPILER2 | |
| 483 | |
| 484 | |
| 485 //---------------------------------------------------------------------------------------------------- | |
| 486 // SafepointBlob: handles illegal_instruction exceptions during a safepoint | |
| 487 | |
| 488 class SafepointBlob: public SingletonBlob { | |
| 489 friend class VMStructs; | |
| 490 private: | |
| 491 // Creation support | |
| 492 SafepointBlob( | |
| 493 CodeBuffer* cb, | |
| 494 int size, | |
| 495 OopMapSet* oop_maps, | |
| 496 int frame_size | |
| 497 ); | |
| 498 | |
| 499 void* operator new(size_t s, unsigned size); | |
| 500 | |
| 501 public: | |
| 502 // Creation | |
| 503 static SafepointBlob* create( | |
| 504 CodeBuffer* cb, | |
| 505 OopMapSet* oop_maps, | |
| 506 int frame_size | |
| 507 ); | |
| 508 | |
| 509 // GC for args | |
| 510 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ } | |
| 511 | |
| 512 // Typing | |
| 513 bool is_safepoint_stub() const { return true; } | |
| 514 | |
| 515 // Iteration | |
| 516 void oops_do(OopClosure* f) {} | |
| 517 }; |