1 /* 2 * Copyright (c) 1998, 2019, 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 #include "precompiled.hpp" 26 #include "jvm.h" 27 #include "code/codeBlob.hpp" 28 #include "code/codeCache.hpp" 29 #include "code/icBuffer.hpp" 30 #include "code/relocInfo.hpp" 31 #include "code/vtableStubs.hpp" 32 #include "compiler/disassembler.hpp" 33 #include "interpreter/bytecode.hpp" 34 #include "memory/allocation.inline.hpp" 35 #include "memory/heap.hpp" 36 #include "memory/resourceArea.hpp" 37 #include "oops/oop.inline.hpp" 38 #include "prims/forte.hpp" 39 #include "runtime/handles.inline.hpp" 40 #include "runtime/interfaceSupport.inline.hpp" 41 #include "runtime/mutexLocker.hpp" 42 #include "runtime/safepoint.hpp" 43 #include "runtime/sharedRuntime.hpp" 44 #include "runtime/vframe.hpp" 45 #include "services/memoryService.hpp" 46 #include "utilities/align.hpp" 47 #ifdef COMPILER1 48 #include "c1/c1_Runtime1.hpp" 49 #endif 50 51 const char* CodeBlob::compiler_name() const { 52 return compilertype2name(_type); 53 } 54 55 unsigned int CodeBlob::align_code_offset(int offset) { 56 // align the size to CodeEntryAlignment 57 return 58 ((offset + (int)CodeHeap::header_size() + (CodeEntryAlignment-1)) & ~(CodeEntryAlignment-1)) 59 - (int)CodeHeap::header_size(); 60 } 61 62 63 // This must be consistent with the CodeBlob constructor's layout actions. 64 unsigned int CodeBlob::allocation_size(CodeBuffer* cb, int header_size) { 65 unsigned int size = header_size; 66 size += align_up(cb->total_relocation_size(), oopSize); 67 // align the size to CodeEntryAlignment 68 size = align_code_offset(size); 69 size += align_up(cb->total_content_size(), oopSize); 70 size += align_up(cb->total_oop_size(), oopSize); 71 size += align_up(cb->total_metadata_size(), oopSize); 72 return size; 73 } 74 75 CodeBlob::CodeBlob(const char* name, CompilerType type, const CodeBlobLayout& layout, int frame_complete_offset, int frame_size, ImmutableOopMapSet* oop_maps, bool caller_must_gc_arguments) : 76 _type(type), 77 _size(layout.size()), 78 _header_size(layout.header_size()), 79 _frame_complete_offset(frame_complete_offset), 80 _data_offset(layout.data_offset()), 81 _frame_size(frame_size), 82 _code_begin(layout.code_begin()), 83 _code_end(layout.code_end()), 84 _content_begin(layout.content_begin()), 85 _data_end(layout.data_end()), 86 _relocation_begin(layout.relocation_begin()), 87 _relocation_end(layout.relocation_end()), 88 _oop_maps(oop_maps), 89 _caller_must_gc_arguments(caller_must_gc_arguments), 90 _strings(CodeStrings()), 91 _name(name) 92 { 93 assert(is_aligned(layout.size(), oopSize), "unaligned size"); 94 assert(is_aligned(layout.header_size(), oopSize), "unaligned size"); 95 assert(is_aligned(layout.relocation_size(), oopSize), "unaligned size"); 96 assert(layout.code_end() == layout.content_end(), "must be the same - see code_end()"); 97 #ifdef COMPILER1 98 // probably wrong for tiered 99 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); 100 #endif // COMPILER1 101 } 102 103 CodeBlob::CodeBlob(const char* name, CompilerType type, const CodeBlobLayout& layout, CodeBuffer* cb, int frame_complete_offset, int frame_size, OopMapSet* oop_maps, bool caller_must_gc_arguments) : 104 _type(type), 105 _size(layout.size()), 106 _header_size(layout.header_size()), 107 _frame_complete_offset(frame_complete_offset), 108 _data_offset(layout.data_offset()), 109 _frame_size(frame_size), 110 _code_begin(layout.code_begin()), 111 _code_end(layout.code_end()), 112 _content_begin(layout.content_begin()), 113 _data_end(layout.data_end()), 114 _relocation_begin(layout.relocation_begin()), 115 _relocation_end(layout.relocation_end()), 116 _caller_must_gc_arguments(caller_must_gc_arguments), 117 _strings(CodeStrings()), 118 _name(name) 119 { 120 assert(is_aligned(_size, oopSize), "unaligned size"); 121 assert(is_aligned(_header_size, oopSize), "unaligned size"); 122 assert(_data_offset <= _size, "codeBlob is too small"); 123 assert(layout.code_end() == layout.content_end(), "must be the same - see code_end()"); 124 125 set_oop_maps(oop_maps); 126 #ifdef COMPILER1 127 // probably wrong for tiered 128 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs"); 129 #endif // COMPILER1 130 } 131 132 133 // Creates a simple CodeBlob. Sets up the size of the different regions. 134 RuntimeBlob::RuntimeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size) 135 : CodeBlob(name, compiler_none, CodeBlobLayout((address) this, size, header_size, locs_size, size), frame_complete, 0, NULL, false /* caller_must_gc_arguments */) 136 { 137 assert(is_aligned(locs_size, oopSize), "unaligned size"); 138 } 139 140 141 // Creates a RuntimeBlob from a CodeBuffer 142 // and copy code and relocation info. 143 RuntimeBlob::RuntimeBlob( 144 const char* name, 145 CodeBuffer* cb, 146 int header_size, 147 int size, 148 int frame_complete, 149 int frame_size, 150 OopMapSet* oop_maps, 151 bool caller_must_gc_arguments 152 ) : CodeBlob(name, compiler_none, CodeBlobLayout((address) this, size, header_size, cb), cb, frame_complete, frame_size, oop_maps, caller_must_gc_arguments) { 153 cb->copy_code_and_locs_to(this); 154 } 155 156 void CodeBlob::flush() { 157 if (_oop_maps) { 158 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps); 159 _oop_maps = NULL; 160 } 161 _strings.free(); 162 } 163 164 void CodeBlob::set_oop_maps(OopMapSet* p) { 165 // Danger Will Robinson! This method allocates a big 166 // chunk of memory, its your job to free it. 167 if (p != NULL) { 168 _oop_maps = ImmutableOopMapSet::build_from(p); 169 } else { 170 _oop_maps = NULL; 171 } 172 } 173 174 175 void RuntimeBlob::trace_new_stub(RuntimeBlob* stub, const char* name1, const char* name2) { 176 // Do not hold the CodeCache lock during name formatting. 177 assert(!CodeCache_lock->owned_by_self(), "release CodeCache before registering the stub"); 178 179 if (stub != NULL) { 180 char stub_id[256]; 181 assert(strlen(name1) + strlen(name2) < sizeof(stub_id), ""); 182 jio_snprintf(stub_id, sizeof(stub_id), "%s%s", name1, name2); 183 if (PrintStubCode) { 184 ttyLocker ttyl; 185 tty->print_cr("- - - [BEGIN] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 186 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, (intptr_t) stub); 187 Disassembler::decode(stub->code_begin(), stub->code_end(), tty); 188 if ((stub->oop_maps() != NULL) && AbstractDisassembler::show_structs()) { 189 tty->print_cr("- - - [OOP MAPS]- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 190 stub->oop_maps()->print(); 191 } 192 tty->print_cr("- - - [END] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 193 tty->cr(); 194 } 195 Forte::register_stub(stub_id, stub->code_begin(), stub->code_end()); 196 197 if (JvmtiExport::should_post_dynamic_code_generated()) { 198 const char* stub_name = name2; 199 if (name2[0] == '\0') stub_name = name1; 200 JvmtiExport::post_dynamic_code_generated(stub_name, stub->code_begin(), stub->code_end()); 201 } 202 } 203 204 // Track memory usage statistic after releasing CodeCache_lock 205 MemoryService::track_code_cache_memory_usage(); 206 } 207 208 const ImmutableOopMap* CodeBlob::oop_map_for_return_address(address return_address) { 209 assert(_oop_maps != NULL, "nope"); 210 return _oop_maps->find_map_at_offset((intptr_t) return_address - (intptr_t) code_begin()); 211 } 212 213 void CodeBlob::print_code() { 214 ResourceMark m; 215 Disassembler::decode(this, tty); 216 } 217 218 //---------------------------------------------------------------------------------------------------- 219 // Implementation of BufferBlob 220 221 222 BufferBlob::BufferBlob(const char* name, int size) 223 : RuntimeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0) 224 {} 225 226 BufferBlob* BufferBlob::create(const char* name, int buffer_size) { 227 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 228 229 BufferBlob* blob = NULL; 230 unsigned int size = sizeof(BufferBlob); 231 // align the size to CodeEntryAlignment 232 size = CodeBlob::align_code_offset(size); 233 size += align_up(buffer_size, oopSize); 234 assert(name != NULL, "must provide a name"); 235 { 236 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 237 blob = new (size) BufferBlob(name, size); 238 } 239 // Track memory usage statistic after releasing CodeCache_lock 240 MemoryService::track_code_cache_memory_usage(); 241 242 return blob; 243 } 244 245 246 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb) 247 : RuntimeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL) 248 {} 249 250 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) { 251 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 252 253 BufferBlob* blob = NULL; 254 unsigned int size = CodeBlob::allocation_size(cb, sizeof(BufferBlob)); 255 assert(name != NULL, "must provide a name"); 256 { 257 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 258 blob = new (size) BufferBlob(name, size, cb); 259 } 260 // Track memory usage statistic after releasing CodeCache_lock 261 MemoryService::track_code_cache_memory_usage(); 262 263 return blob; 264 } 265 266 void* BufferBlob::operator new(size_t s, unsigned size) throw() { 267 return CodeCache::allocate(size, CodeBlobType::NonNMethod); 268 } 269 270 void BufferBlob::free(BufferBlob *blob) { 271 assert(blob != NULL, "caller must check for NULL"); 272 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 273 blob->flush(); 274 { 275 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 276 CodeCache::free((RuntimeBlob*)blob); 277 } 278 // Track memory usage statistic after releasing CodeCache_lock 279 MemoryService::track_code_cache_memory_usage(); 280 } 281 282 283 //---------------------------------------------------------------------------------------------------- 284 // Implementation of AdapterBlob 285 286 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb) : 287 BufferBlob("I2C/C2I adapters", size, cb) { 288 CodeCache::commit(this); 289 } 290 291 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) { 292 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 293 294 AdapterBlob* blob = NULL; 295 unsigned int size = CodeBlob::allocation_size(cb, sizeof(AdapterBlob)); 296 { 297 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 298 blob = new (size) AdapterBlob(size, cb); 299 } 300 // Track memory usage statistic after releasing CodeCache_lock 301 MemoryService::track_code_cache_memory_usage(); 302 303 return blob; 304 } 305 306 VtableBlob::VtableBlob(const char* name, int size) : 307 BufferBlob(name, size) { 308 } 309 310 VtableBlob* VtableBlob::create(const char* name, int buffer_size) { 311 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 312 313 VtableBlob* blob = NULL; 314 unsigned int size = sizeof(VtableBlob); 315 // align the size to CodeEntryAlignment 316 size = align_code_offset(size); 317 size += align_up(buffer_size, oopSize); 318 assert(name != NULL, "must provide a name"); 319 { 320 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 321 blob = new (size) VtableBlob(name, size); 322 } 323 // Track memory usage statistic after releasing CodeCache_lock 324 MemoryService::track_code_cache_memory_usage(); 325 326 return blob; 327 } 328 329 //---------------------------------------------------------------------------------------------------- 330 // Implementation of MethodHandlesAdapterBlob 331 332 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) { 333 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 334 335 MethodHandlesAdapterBlob* blob = NULL; 336 unsigned int size = sizeof(MethodHandlesAdapterBlob); 337 // align the size to CodeEntryAlignment 338 size = CodeBlob::align_code_offset(size); 339 size += align_up(buffer_size, oopSize); 340 { 341 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 342 blob = new (size) MethodHandlesAdapterBlob(size); 343 if (blob == NULL) { 344 vm_exit_out_of_memory(size, OOM_MALLOC_ERROR, "CodeCache: no room for method handle adapter blob"); 345 } 346 } 347 // Track memory usage statistic after releasing CodeCache_lock 348 MemoryService::track_code_cache_memory_usage(); 349 350 return blob; 351 } 352 353 //---------------------------------------------------------------------------------------------------- 354 // Implementation of RuntimeStub 355 356 RuntimeStub::RuntimeStub( 357 const char* name, 358 CodeBuffer* cb, 359 int size, 360 int frame_complete, 361 int frame_size, 362 OopMapSet* oop_maps, 363 bool caller_must_gc_arguments 364 ) 365 : RuntimeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments) 366 { 367 } 368 369 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name, 370 CodeBuffer* cb, 371 int frame_complete, 372 int frame_size, 373 OopMapSet* oop_maps, 374 bool caller_must_gc_arguments) 375 { 376 RuntimeStub* stub = NULL; 377 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 378 { 379 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 380 unsigned int size = CodeBlob::allocation_size(cb, sizeof(RuntimeStub)); 381 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments); 382 } 383 384 trace_new_stub(stub, "RuntimeStub - ", stub_name); 385 386 return stub; 387 } 388 389 390 void* RuntimeStub::operator new(size_t s, unsigned size) throw() { 391 void* p = CodeCache::allocate(size, CodeBlobType::NonNMethod); 392 if (!p) fatal("Initial size of CodeCache is too small"); 393 return p; 394 } 395 396 // operator new shared by all singletons: 397 void* SingletonBlob::operator new(size_t s, unsigned size) throw() { 398 void* p = CodeCache::allocate(size, CodeBlobType::NonNMethod); 399 if (!p) fatal("Initial size of CodeCache is too small"); 400 return p; 401 } 402 403 404 //---------------------------------------------------------------------------------------------------- 405 // Implementation of DeoptimizationBlob 406 407 DeoptimizationBlob::DeoptimizationBlob( 408 CodeBuffer* cb, 409 int size, 410 OopMapSet* oop_maps, 411 int unpack_offset, 412 int unpack_with_exception_offset, 413 int unpack_with_reexecution_offset, 414 int frame_size 415 ) 416 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps) 417 { 418 _unpack_offset = unpack_offset; 419 _unpack_with_exception = unpack_with_exception_offset; 420 _unpack_with_reexecution = unpack_with_reexecution_offset; 421 #ifdef COMPILER1 422 _unpack_with_exception_in_tls = -1; 423 #endif 424 } 425 426 427 DeoptimizationBlob* DeoptimizationBlob::create( 428 CodeBuffer* cb, 429 OopMapSet* oop_maps, 430 int unpack_offset, 431 int unpack_with_exception_offset, 432 int unpack_with_reexecution_offset, 433 int frame_size) 434 { 435 DeoptimizationBlob* blob = NULL; 436 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 437 { 438 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 439 unsigned int size = CodeBlob::allocation_size(cb, sizeof(DeoptimizationBlob)); 440 blob = new (size) DeoptimizationBlob(cb, 441 size, 442 oop_maps, 443 unpack_offset, 444 unpack_with_exception_offset, 445 unpack_with_reexecution_offset, 446 frame_size); 447 } 448 449 trace_new_stub(blob, "DeoptimizationBlob"); 450 451 return blob; 452 } 453 454 455 //---------------------------------------------------------------------------------------------------- 456 // Implementation of UncommonTrapBlob 457 458 #ifdef COMPILER2 459 UncommonTrapBlob::UncommonTrapBlob( 460 CodeBuffer* cb, 461 int size, 462 OopMapSet* oop_maps, 463 int frame_size 464 ) 465 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps) 466 {} 467 468 469 UncommonTrapBlob* UncommonTrapBlob::create( 470 CodeBuffer* cb, 471 OopMapSet* oop_maps, 472 int frame_size) 473 { 474 UncommonTrapBlob* blob = NULL; 475 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 476 { 477 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 478 unsigned int size = CodeBlob::allocation_size(cb, sizeof(UncommonTrapBlob)); 479 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size); 480 } 481 482 trace_new_stub(blob, "UncommonTrapBlob"); 483 484 return blob; 485 } 486 487 488 #endif // COMPILER2 489 490 491 //---------------------------------------------------------------------------------------------------- 492 // Implementation of ExceptionBlob 493 494 #ifdef COMPILER2 495 ExceptionBlob::ExceptionBlob( 496 CodeBuffer* cb, 497 int size, 498 OopMapSet* oop_maps, 499 int frame_size 500 ) 501 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps) 502 {} 503 504 505 ExceptionBlob* ExceptionBlob::create( 506 CodeBuffer* cb, 507 OopMapSet* oop_maps, 508 int frame_size) 509 { 510 ExceptionBlob* blob = NULL; 511 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 512 { 513 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 514 unsigned int size = CodeBlob::allocation_size(cb, sizeof(ExceptionBlob)); 515 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size); 516 } 517 518 trace_new_stub(blob, "ExceptionBlob"); 519 520 return blob; 521 } 522 523 524 #endif // COMPILER2 525 526 527 //---------------------------------------------------------------------------------------------------- 528 // Implementation of SafepointBlob 529 530 SafepointBlob::SafepointBlob( 531 CodeBuffer* cb, 532 int size, 533 OopMapSet* oop_maps, 534 int frame_size 535 ) 536 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps) 537 {} 538 539 540 SafepointBlob* SafepointBlob::create( 541 CodeBuffer* cb, 542 OopMapSet* oop_maps, 543 int frame_size) 544 { 545 SafepointBlob* blob = NULL; 546 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock 547 { 548 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 549 unsigned int size = CodeBlob::allocation_size(cb, sizeof(SafepointBlob)); 550 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size); 551 } 552 553 trace_new_stub(blob, "SafepointBlob"); 554 555 return blob; 556 } 557 558 559 //---------------------------------------------------------------------------------------------------- 560 // Verification and printing 561 562 void CodeBlob::print_on(outputStream* st) const { 563 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", p2i(this)); 564 st->print_cr("Framesize: %d", _frame_size); 565 } 566 567 void CodeBlob::print_value_on(outputStream* st) const { 568 st->print_cr("[CodeBlob]"); 569 } 570 571 void CodeBlob::dump_for_addr(address addr, outputStream* st, bool verbose) const { 572 if (is_buffer_blob()) { 573 // the interpreter is generated into a buffer blob 574 InterpreterCodelet* i = Interpreter::codelet_containing(addr); 575 if (i != NULL) { 576 st->print_cr(INTPTR_FORMAT " is at code_begin+%d in an Interpreter codelet", p2i(addr), (int)(addr - i->code_begin())); 577 i->print_on(st); 578 return; 579 } 580 if (Interpreter::contains(addr)) { 581 st->print_cr(INTPTR_FORMAT " is pointing into interpreter code" 582 " (not bytecode specific)", p2i(addr)); 583 return; 584 } 585 // 586 if (AdapterHandlerLibrary::contains(this)) { 587 st->print_cr(INTPTR_FORMAT " is at code_begin+%d in an AdapterHandler", p2i(addr), (int)(addr - code_begin())); 588 AdapterHandlerLibrary::print_handler_on(st, this); 589 } 590 // the stubroutines are generated into a buffer blob 591 StubCodeDesc* d = StubCodeDesc::desc_for(addr); 592 if (d != NULL) { 593 st->print_cr(INTPTR_FORMAT " is at begin+%d in a stub", p2i(addr), (int)(addr - d->begin())); 594 d->print_on(st); 595 st->cr(); 596 return; 597 } 598 if (StubRoutines::contains(addr)) { 599 st->print_cr(INTPTR_FORMAT " is pointing to an (unnamed) stub routine", p2i(addr)); 600 return; 601 } 602 // the InlineCacheBuffer is using stubs generated into a buffer blob 603 if (InlineCacheBuffer::contains(addr)) { 604 st->print_cr(INTPTR_FORMAT " is pointing into InlineCacheBuffer", p2i(addr)); 605 return; 606 } 607 VtableStub* v = VtableStubs::stub_containing(addr); 608 if (v != NULL) { 609 st->print_cr(INTPTR_FORMAT " is at entry_point+%d in a vtable stub", p2i(addr), (int)(addr - v->entry_point())); 610 v->print_on(st); 611 st->cr(); 612 return; 613 } 614 } 615 if (is_nmethod()) { 616 nmethod* nm = (nmethod*)this; 617 ResourceMark rm; 618 st->print(INTPTR_FORMAT " is at entry_point+%d in (nmethod*)" INTPTR_FORMAT, 619 p2i(addr), (int)(addr - nm->entry_point()), p2i(nm)); 620 if (verbose) { 621 st->print(" for "); 622 nm->method()->print_value_on(st); 623 } 624 st->cr(); 625 nm->print_nmethod(verbose); 626 return; 627 } 628 st->print_cr(INTPTR_FORMAT " is at code_begin+%d in ", p2i(addr), (int)(addr - code_begin())); 629 print_on(st); 630 } 631 632 void RuntimeBlob::verify() { 633 ShouldNotReachHere(); 634 } 635 636 void BufferBlob::verify() { 637 // unimplemented 638 } 639 640 void BufferBlob::print_on(outputStream* st) const { 641 RuntimeBlob::print_on(st); 642 print_value_on(st); 643 } 644 645 void BufferBlob::print_value_on(outputStream* st) const { 646 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", p2i(this), name()); 647 } 648 649 void RuntimeStub::verify() { 650 // unimplemented 651 } 652 653 void RuntimeStub::print_on(outputStream* st) const { 654 ttyLocker ttyl; 655 RuntimeBlob::print_on(st); 656 st->print("Runtime Stub (" INTPTR_FORMAT "): ", p2i(this)); 657 st->print_cr("%s", name()); 658 Disassembler::decode((RuntimeBlob*)this, st); 659 } 660 661 void RuntimeStub::print_value_on(outputStream* st) const { 662 st->print("RuntimeStub (" INTPTR_FORMAT "): ", p2i(this)); st->print("%s", name()); 663 } 664 665 void SingletonBlob::verify() { 666 // unimplemented 667 } 668 669 void SingletonBlob::print_on(outputStream* st) const { 670 ttyLocker ttyl; 671 RuntimeBlob::print_on(st); 672 st->print_cr("%s", name()); 673 Disassembler::decode((RuntimeBlob*)this, st); 674 } 675 676 void SingletonBlob::print_value_on(outputStream* st) const { 677 st->print_cr("%s", name()); 678 } 679 680 void DeoptimizationBlob::print_value_on(outputStream* st) const { 681 st->print_cr("Deoptimization (frame not available)"); 682 }