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