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("- - - [BEGIN] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -");
187 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, (intptr_t) stub);
188 Disassembler::decode(stub->code_begin(), stub->code_end(), tty);
189 if ((stub->oop_maps() != NULL) && AbstractDisassembler::show_structs()) {
190 tty->print_cr("- - - [OOP MAPS]- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -");
191 stub->oop_maps()->print();
192 }
193 tty->print_cr("- - - [END] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -");
194 tty->cr();
195 }
196 Forte::register_stub(stub_id, stub->code_begin(), stub->code_end());
197
198 if (JvmtiExport::should_post_dynamic_code_generated()) {
199 const char* stub_name = name2;
200 if (name2[0] == '\0') stub_name = name1;
201 JvmtiExport::post_dynamic_code_generated(stub_name, stub->code_begin(), stub->code_end());
202 }
203 }
204
205 // Track memory usage statistic after releasing CodeCache_lock
206 MemoryService::track_code_cache_memory_usage();
207 }
208
209 const ImmutableOopMap* CodeBlob::oop_map_for_return_address(address return_address) {
210 assert(_oop_maps != NULL, "nope");
211 return _oop_maps->find_map_at_offset((intptr_t) return_address - (intptr_t) code_begin());
212 }
213
214 void CodeBlob::print_code() {
215 ResourceMark m;
216 Disassembler::decode(this, tty);
217 }
218
219 //----------------------------------------------------------------------------------------------------
220 // Implementation of BufferBlob
221
222
223 BufferBlob::BufferBlob(const char* name, int size)
224 : RuntimeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0)
225 {}
226
227 BufferBlob* BufferBlob::create(const char* name, int buffer_size) {
228 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
229
230 BufferBlob* blob = NULL;
231 unsigned int size = sizeof(BufferBlob);
232 // align the size to CodeEntryAlignment
233 size = CodeBlob::align_code_offset(size);
234 size += align_up(buffer_size, oopSize);
235 assert(name != NULL, "must provide a name");
236 {
237 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
238 blob = new (size) BufferBlob(name, size);
239 }
240 // Track memory usage statistic after releasing CodeCache_lock
241 MemoryService::track_code_cache_memory_usage();
242
243 return blob;
244 }
245
246
247 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb)
248 : RuntimeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL)
249 {}
250
251 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) {
252 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
253
254 BufferBlob* blob = NULL;
255 unsigned int size = CodeBlob::allocation_size(cb, sizeof(BufferBlob));
256 assert(name != NULL, "must provide a name");
257 {
258 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
259 blob = new (size) BufferBlob(name, size, cb);
260 }
261 // Track memory usage statistic after releasing CodeCache_lock
262 MemoryService::track_code_cache_memory_usage();
263
264 return blob;
265 }
266
267 void* BufferBlob::operator new(size_t s, unsigned size) throw() {
268 return CodeCache::allocate(size, CodeBlobType::NonNMethod);
269 }
270
271 void BufferBlob::free(BufferBlob *blob) {
272 assert(blob != NULL, "caller must check for NULL");
273 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
274 blob->flush();
275 {
276 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
277 CodeCache::free((RuntimeBlob*)blob);
278 }
279 // Track memory usage statistic after releasing CodeCache_lock
280 MemoryService::track_code_cache_memory_usage();
281 }
282
283
284 //----------------------------------------------------------------------------------------------------
285 // Implementation of AdapterBlob
286
287 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb) :
288 BufferBlob("I2C/C2I adapters", size, cb) {
289 CodeCache::commit(this);
290 }
291
292 AdapterBlob* AdapterBlob::create(CodeBuffer* cb) {
293 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
294
295 AdapterBlob* blob = NULL;
296 unsigned int size = CodeBlob::allocation_size(cb, sizeof(AdapterBlob));
297 {
298 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
299 blob = new (size) AdapterBlob(size, cb);
300 }
301 // Track memory usage statistic after releasing CodeCache_lock
302 MemoryService::track_code_cache_memory_usage();
303
304 return blob;
305 }
306
307 VtableBlob::VtableBlob(const char* name, int size) :
308 BufferBlob(name, size) {
309 }
310
311 VtableBlob* VtableBlob::create(const char* name, int buffer_size) {
312 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
313
314 VtableBlob* blob = NULL;
315 unsigned int size = sizeof(VtableBlob);
316 // align the size to CodeEntryAlignment
317 size = align_code_offset(size);
318 size += align_up(buffer_size, oopSize);
319 assert(name != NULL, "must provide a name");
320 {
321 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
322 blob = new (size) VtableBlob(name, size);
323 }
324 // Track memory usage statistic after releasing CodeCache_lock
325 MemoryService::track_code_cache_memory_usage();
326
327 return blob;
328 }
329
330 //----------------------------------------------------------------------------------------------------
331 // Implementation of MethodHandlesAdapterBlob
332
333 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) {
334 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
335
336 MethodHandlesAdapterBlob* blob = NULL;
337 unsigned int size = sizeof(MethodHandlesAdapterBlob);
338 // align the size to CodeEntryAlignment
339 size = CodeBlob::align_code_offset(size);
340 size += align_up(buffer_size, oopSize);
341 {
342 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
343 blob = new (size) MethodHandlesAdapterBlob(size);
344 if (blob == NULL) {
345 vm_exit_out_of_memory(size, OOM_MALLOC_ERROR, "CodeCache: no room for method handle adapter blob");
346 }
347 }
348 // Track memory usage statistic after releasing CodeCache_lock
349 MemoryService::track_code_cache_memory_usage();
350
351 return blob;
352 }
353
354 //----------------------------------------------------------------------------------------------------
355 // Implementation of RuntimeStub
356
357 RuntimeStub::RuntimeStub(
358 const char* name,
359 CodeBuffer* cb,
360 int size,
361 int frame_complete,
362 int frame_size,
363 OopMapSet* oop_maps,
364 bool caller_must_gc_arguments
365 )
366 : RuntimeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments)
367 {
368 }
369
370 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name,
371 CodeBuffer* cb,
372 int frame_complete,
373 int frame_size,
374 OopMapSet* oop_maps,
375 bool caller_must_gc_arguments)
376 {
377 RuntimeStub* stub = NULL;
378 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
379 {
380 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
381 unsigned int size = CodeBlob::allocation_size(cb, sizeof(RuntimeStub));
382 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments);
383 }
384
385 trace_new_stub(stub, "RuntimeStub - ", stub_name);
386
387 return stub;
388 }
389
390
391 void* RuntimeStub::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 // operator new shared by all singletons:
398 void* SingletonBlob::operator new(size_t s, unsigned size) throw() {
399 void* p = CodeCache::allocate(size, CodeBlobType::NonNMethod);
400 if (!p) fatal("Initial size of CodeCache is too small");
401 return p;
402 }
403
404
405 //----------------------------------------------------------------------------------------------------
406 // Implementation of DeoptimizationBlob
407
408 DeoptimizationBlob::DeoptimizationBlob(
409 CodeBuffer* cb,
410 int size,
411 OopMapSet* oop_maps,
412 int unpack_offset,
413 int unpack_with_exception_offset,
414 int unpack_with_reexecution_offset,
415 int frame_size
416 )
417 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps)
418 {
419 _unpack_offset = unpack_offset;
420 _unpack_with_exception = unpack_with_exception_offset;
421 _unpack_with_reexecution = unpack_with_reexecution_offset;
422 #ifdef COMPILER1
423 _unpack_with_exception_in_tls = -1;
424 #endif
425 }
426
427
428 DeoptimizationBlob* DeoptimizationBlob::create(
429 CodeBuffer* cb,
430 OopMapSet* oop_maps,
431 int unpack_offset,
432 int unpack_with_exception_offset,
433 int unpack_with_reexecution_offset,
434 int frame_size)
435 {
436 DeoptimizationBlob* blob = NULL;
437 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
438 {
439 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
440 unsigned int size = CodeBlob::allocation_size(cb, sizeof(DeoptimizationBlob));
441 blob = new (size) DeoptimizationBlob(cb,
442 size,
443 oop_maps,
444 unpack_offset,
445 unpack_with_exception_offset,
446 unpack_with_reexecution_offset,
447 frame_size);
448 }
449
450 trace_new_stub(blob, "DeoptimizationBlob");
451
452 return blob;
453 }
454
455
456 //----------------------------------------------------------------------------------------------------
457 // Implementation of UncommonTrapBlob
458
459 #ifdef COMPILER2
460 UncommonTrapBlob::UncommonTrapBlob(
461 CodeBuffer* cb,
462 int size,
463 OopMapSet* oop_maps,
464 int frame_size
465 )
466 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps)
467 {}
468
469
470 UncommonTrapBlob* UncommonTrapBlob::create(
471 CodeBuffer* cb,
472 OopMapSet* oop_maps,
473 int frame_size)
474 {
475 UncommonTrapBlob* blob = NULL;
476 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
477 {
478 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
479 unsigned int size = CodeBlob::allocation_size(cb, sizeof(UncommonTrapBlob));
480 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size);
481 }
482
483 trace_new_stub(blob, "UncommonTrapBlob");
484
485 return blob;
486 }
487
488
489 #endif // COMPILER2
490
491
492 //----------------------------------------------------------------------------------------------------
493 // Implementation of ExceptionBlob
494
495 #ifdef COMPILER2
496 ExceptionBlob::ExceptionBlob(
497 CodeBuffer* cb,
498 int size,
499 OopMapSet* oop_maps,
500 int frame_size
501 )
502 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps)
503 {}
504
505
506 ExceptionBlob* ExceptionBlob::create(
507 CodeBuffer* cb,
508 OopMapSet* oop_maps,
509 int frame_size)
510 {
511 ExceptionBlob* blob = NULL;
512 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
513 {
514 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
515 unsigned int size = CodeBlob::allocation_size(cb, sizeof(ExceptionBlob));
516 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size);
517 }
518
519 trace_new_stub(blob, "ExceptionBlob");
520
521 return blob;
522 }
523
524
525 #endif // COMPILER2
526
527
528 //----------------------------------------------------------------------------------------------------
529 // Implementation of SafepointBlob
530
531 SafepointBlob::SafepointBlob(
532 CodeBuffer* cb,
533 int size,
534 OopMapSet* oop_maps,
535 int frame_size
536 )
537 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps)
538 {}
539
540
541 SafepointBlob* SafepointBlob::create(
542 CodeBuffer* cb,
543 OopMapSet* oop_maps,
544 int frame_size)
545 {
546 SafepointBlob* blob = NULL;
547 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
548 {
549 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
550 unsigned int size = CodeBlob::allocation_size(cb, sizeof(SafepointBlob));
551 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size);
552 }
553
554 trace_new_stub(blob, "SafepointBlob");
555
556 return blob;
557 }
558
559
560 //----------------------------------------------------------------------------------------------------
561 // Verification and printing
562
563 void CodeBlob::print_on(outputStream* st) const {
564 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", p2i(this));
565 st->print_cr("Framesize: %d", _frame_size);
566 }
567
568 void CodeBlob::print() const { print_on(tty); }
569
570 void CodeBlob::print_value_on(outputStream* st) const {
571 st->print_cr("[CodeBlob]");
572 }
573
574 void CodeBlob::dump_for_addr(address addr, outputStream* st, bool verbose) const {
575 if (is_buffer_blob()) {
576 // the interpreter is generated into a buffer blob
577 InterpreterCodelet* i = Interpreter::codelet_containing(addr);
578 if (i != NULL) {
579 st->print_cr(INTPTR_FORMAT " is at code_begin+%d in an Interpreter codelet", p2i(addr), (int)(addr - i->code_begin()));
580 i->print_on(st);
581 return;
582 }
583 if (Interpreter::contains(addr)) {
584 st->print_cr(INTPTR_FORMAT " is pointing into interpreter code"
585 " (not bytecode specific)", p2i(addr));
586 return;
587 }
588 //
589 if (AdapterHandlerLibrary::contains(this)) {
590 st->print_cr(INTPTR_FORMAT " is at code_begin+%d in an AdapterHandler", p2i(addr), (int)(addr - code_begin()));
591 AdapterHandlerLibrary::print_handler_on(st, this);
592 }
593 // the stubroutines are generated into a buffer blob
594 StubCodeDesc* d = StubCodeDesc::desc_for(addr);
595 if (d != NULL) {
596 st->print_cr(INTPTR_FORMAT " is at begin+%d in a stub", p2i(addr), (int)(addr - d->begin()));
597 d->print_on(st);
598 st->cr();
599 return;
600 }
601 if (StubRoutines::contains(addr)) {
602 st->print_cr(INTPTR_FORMAT " is pointing to an (unnamed) stub routine", p2i(addr));
603 return;
604 }
605 // the InlineCacheBuffer is using stubs generated into a buffer blob
606 if (InlineCacheBuffer::contains(addr)) {
607 st->print_cr(INTPTR_FORMAT " is pointing into InlineCacheBuffer", p2i(addr));
608 return;
609 }
610 VtableStub* v = VtableStubs::stub_containing(addr);
611 if (v != NULL) {
612 st->print_cr(INTPTR_FORMAT " is at entry_point+%d in a vtable stub", p2i(addr), (int)(addr - v->entry_point()));
613 v->print_on(st);
614 st->cr();
615 return;
616 }
617 }
618 if (is_nmethod()) {
619 nmethod* nm = (nmethod*)this;
620 ResourceMark rm;
621 st->print(INTPTR_FORMAT " is at entry_point+%d in (nmethod*)" INTPTR_FORMAT,
622 p2i(addr), (int)(addr - nm->entry_point()), p2i(nm));
623 if (verbose) {
624 st->print(" for ");
625 nm->method()->print_value_on(st);
626 }
627 st->cr();
628 nm->print_nmethod(verbose);
629 return;
630 }
631 st->print_cr(INTPTR_FORMAT " is at code_begin+%d in ", p2i(addr), (int)(addr - code_begin()));
632 print_on(st);
633 }
634
635 void RuntimeBlob::verify() {
636 ShouldNotReachHere();
637 }
638
639 void BufferBlob::verify() {
640 // unimplemented
641 }
642
643 void BufferBlob::print_on(outputStream* st) const {
644 RuntimeBlob::print_on(st);
645 print_value_on(st);
646 }
647
648 void BufferBlob::print_value_on(outputStream* st) const {
649 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", p2i(this), name());
650 }
651
652 void RuntimeStub::verify() {
653 // unimplemented
654 }
655
656 void RuntimeStub::print_on(outputStream* st) const {
657 ttyLocker ttyl;
658 RuntimeBlob::print_on(st);
659 st->print("Runtime Stub (" INTPTR_FORMAT "): ", p2i(this));
660 st->print_cr("%s", name());
661 Disassembler::decode((RuntimeBlob*)this, st);
662 }
663
664 void RuntimeStub::print_value_on(outputStream* st) const {
665 st->print("RuntimeStub (" INTPTR_FORMAT "): ", p2i(this)); st->print("%s", name());
666 }
667
668 void SingletonBlob::verify() {
669 // unimplemented
670 }
671
672 void SingletonBlob::print_on(outputStream* st) const {
673 ttyLocker ttyl;
674 RuntimeBlob::print_on(st);
675 st->print_cr("%s", name());
676 Disassembler::decode((RuntimeBlob*)this, st);
677 }
678
679 void SingletonBlob::print_value_on(outputStream* st) const {
680 st->print_cr("%s", name());
681 }
682
683 void DeoptimizationBlob::print_value_on(outputStream* st) const {
684 st->print_cr("Deoptimization (frame not available)");
685 }