1 /*
2 * Copyright (c) 1998, 2017, 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 "code/codeBlob.hpp"
27 #include "code/codeCache.hpp"
28 #include "code/relocInfo.hpp"
29 #include "compiler/disassembler.hpp"
30 #include "interpreter/bytecode.hpp"
31 #include "memory/allocation.inline.hpp"
32 #include "memory/heap.hpp"
33 #include "memory/resourceArea.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "prims/forte.hpp"
36 #include "runtime/handles.inline.hpp"
37 #include "runtime/interfaceSupport.hpp"
38 #include "runtime/mutexLocker.hpp"
39 #include "runtime/safepoint.hpp"
40 #include "runtime/sharedRuntime.hpp"
41 #include "runtime/vframe.hpp"
42 #include "services/memoryService.hpp"
43 #ifdef COMPILER1
44 #include "c1/c1_Runtime1.hpp"
45 #endif
46
47 const char* CodeBlob::compiler_name() const {
48 return compilertype2name(_type);
49 }
50
51 unsigned int CodeBlob::align_code_offset(int offset) {
52 // align the size to CodeEntryAlignment
53 return
54 ((offset + (int)CodeHeap::header_size() + (CodeEntryAlignment-1)) & ~(CodeEntryAlignment-1))
55 - (int)CodeHeap::header_size();
56 }
57
58
59 // This must be consistent with the CodeBlob constructor's layout actions.
60 unsigned int CodeBlob::allocation_size(CodeBuffer* cb, int header_size) {
61 unsigned int size = header_size;
62 size += round_to(cb->total_relocation_size(), oopSize);
63 // align the size to CodeEntryAlignment
64 size = align_code_offset(size);
65 size += round_to(cb->total_content_size(), oopSize);
66 size += round_to(cb->total_oop_size(), oopSize);
67 size += round_to(cb->total_metadata_size(), oopSize);
68 return size;
69 }
70
71 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) :
72 _name(name),
73 _size(layout.size()),
74 _header_size(layout.header_size()),
75 _frame_complete_offset(frame_complete_offset),
76 _data_offset(layout.data_offset()),
77 _frame_size(frame_size),
78 _strings(CodeStrings()),
79 _oop_maps(oop_maps),
80 _caller_must_gc_arguments(caller_must_gc_arguments),
81 _code_begin(layout.code_begin()),
82 _code_end(layout.code_end()),
83 _data_end(layout.data_end()),
84 _relocation_begin(layout.relocation_begin()),
85 _relocation_end(layout.relocation_end()),
86 _content_begin(layout.content_begin()),
87 _type(type)
88 {
89 assert(layout.size() == round_to(layout.size(), oopSize), "unaligned size");
90 assert(layout.header_size() == round_to(layout.header_size(), oopSize), "unaligned size");
91 assert(layout.relocation_size() == round_to(layout.relocation_size(), oopSize), "unaligned size");
92 assert(layout.code_end() == layout.content_end(), "must be the same - see code_end()");
93 #ifdef COMPILER1
94 // probably wrong for tiered
95 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs");
96 #endif // COMPILER1
97 }
98
99 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) :
100 _name(name),
101 _size(layout.size()),
102 _header_size(layout.header_size()),
103 _frame_complete_offset(frame_complete_offset),
104 _data_offset(layout.data_offset()),
105 _frame_size(frame_size),
106 _strings(CodeStrings()),
107 _caller_must_gc_arguments(caller_must_gc_arguments),
108 _code_begin(layout.code_begin()),
109 _code_end(layout.code_end()),
110 _data_end(layout.data_end()),
111 _relocation_begin(layout.relocation_begin()),
112 _relocation_end(layout.relocation_end()),
113 _content_begin(layout.content_begin()),
114 _type(type)
115 {
116 assert(_size == round_to(_size, oopSize), "unaligned size");
117 assert(_header_size == round_to(_header_size, oopSize), "unaligned size");
118 assert(_data_offset <= _size, "codeBlob is too small");
119 assert(layout.code_end() == layout.content_end(), "must be the same - see code_end()");
120
121 set_oop_maps(oop_maps);
122 #ifdef COMPILER1
123 // probably wrong for tiered
124 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs");
125 #endif // COMPILER1
126 }
127
128
129 // Creates a simple CodeBlob. Sets up the size of the different regions.
130 RuntimeBlob::RuntimeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size)
131 : CodeBlob(name, compiler_none, CodeBlobLayout((address) this, size, header_size, locs_size, size), frame_complete, 0, NULL, false /* caller_must_gc_arguments */)
132 {
133 assert(locs_size == round_to(locs_size, oopSize), "unaligned size");
134 assert(!UseRelocIndex, "no space allocated for reloc index yet");
135
136 // Note: If UseRelocIndex is enabled, there needs to be (at least) one
137 // extra word for the relocation information, containing the reloc
138 // index table length. Unfortunately, the reloc index table imple-
139 // mentation is not easily understandable and thus it is not clear
140 // what exactly the format is supposed to be. For now, we just turn
141 // off the use of this table (gri 7/6/2000).
142 }
143
144
145 // Creates a RuntimeBlob from a CodeBuffer
146 // and copy code and relocation info.
147 RuntimeBlob::RuntimeBlob(
148 const char* name,
149 CodeBuffer* cb,
150 int header_size,
151 int size,
152 int frame_complete,
153 int frame_size,
154 OopMapSet* oop_maps,
155 bool caller_must_gc_arguments
156 ) : CodeBlob(name, compiler_none, CodeBlobLayout((address) this, size, header_size, cb), cb, frame_complete, frame_size, oop_maps, caller_must_gc_arguments) {
157 cb->copy_code_and_locs_to(this);
158 }
159
160 void CodeBlob::flush() {
161 if (_oop_maps) {
162 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps);
163 _oop_maps = NULL;
164 }
165 _strings.free();
166 }
167
168 void CodeBlob::set_oop_maps(OopMapSet* p) {
169 // Danger Will Robinson! This method allocates a big
170 // chunk of memory, its your job to free it.
171 if (p != NULL) {
172 _oop_maps = ImmutableOopMapSet::build_from(p);
173 } else {
174 _oop_maps = NULL;
175 }
176 }
177
178
179 void RuntimeBlob::trace_new_stub(RuntimeBlob* stub, const char* name1, const char* name2) {
180 // Do not hold the CodeCache lock during name formatting.
181 assert(!CodeCache_lock->owned_by_self(), "release CodeCache before registering the stub");
182
183 if (stub != NULL) {
184 char stub_id[256];
185 assert(strlen(name1) + strlen(name2) < sizeof(stub_id), "");
186 jio_snprintf(stub_id, sizeof(stub_id), "%s%s", name1, name2);
187 if (PrintStubCode) {
188 ttyLocker ttyl;
189 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, (intptr_t) stub);
190 Disassembler::decode(stub->code_begin(), stub->code_end());
191 tty->cr();
192 }
193 Forte::register_stub(stub_id, stub->code_begin(), stub->code_end());
194
195 if (JvmtiExport::should_post_dynamic_code_generated()) {
196 const char* stub_name = name2;
197 if (name2[0] == '\0') stub_name = name1;
198 JvmtiExport::post_dynamic_code_generated(stub_name, stub->code_begin(), stub->code_end());
199 }
200 }
201
202 // Track memory usage statistic after releasing CodeCache_lock
203 MemoryService::track_code_cache_memory_usage();
204 }
205
206 const ImmutableOopMap* CodeBlob::oop_map_for_return_address(address return_address) {
207 assert(_oop_maps != NULL, "nope");
208 return _oop_maps->find_map_at_offset((intptr_t) return_address - (intptr_t) code_begin());
209 }
210
211 void CodeBlob::print_code() {
212 ResourceMark m;
213 Disassembler::decode(this, tty);
214 }
215
216 //----------------------------------------------------------------------------------------------------
217 // Implementation of BufferBlob
218
219
220 BufferBlob::BufferBlob(const char* name, int size)
221 : RuntimeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0)
222 {}
223
224 BufferBlob* BufferBlob::create(const char* name, int buffer_size) {
225 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
226
227 BufferBlob* blob = NULL;
228 unsigned int size = sizeof(BufferBlob);
229 // align the size to CodeEntryAlignment
230 size = CodeBlob::align_code_offset(size);
231 size += round_to(buffer_size, oopSize);
232 assert(name != NULL, "must provide a name");
233 {
234 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
235 blob = new (size) BufferBlob(name, size);
236 }
237 // Track memory usage statistic after releasing CodeCache_lock
238 MemoryService::track_code_cache_memory_usage();
239
240 return blob;
241 }
242
243
244 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb)
245 : RuntimeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL)
246 {}
247
248 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) {
249 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
250
251 BufferBlob* blob = NULL;
252 unsigned int size = CodeBlob::allocation_size(cb, sizeof(BufferBlob));
253 assert(name != NULL, "must provide a name");
254 {
255 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
256 blob = new (size) BufferBlob(name, size, cb);
257 }
258 // Track memory usage statistic after releasing CodeCache_lock
259 MemoryService::track_code_cache_memory_usage();
260
261 return blob;
262 }
263
264 void* BufferBlob::operator new(size_t s, unsigned size) throw() {
265 return CodeCache::allocate(size, CodeBlobType::NonNMethod);
266 }
267
268 void BufferBlob::free(BufferBlob *blob) {
269 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
270 blob->flush();
271 {
272 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
273 CodeCache::free((RuntimeBlob*)blob);
274 }
275 // Track memory usage statistic after releasing CodeCache_lock
276 MemoryService::track_code_cache_memory_usage();
277 }
278
279 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb, int frame_complete, int frame_size, OopMapSet* oop_maps)
280 : RuntimeBlob(name, cb, sizeof(BufferBlob), size, frame_complete, frame_size, oop_maps)
281 {}
282
283
284 //----------------------------------------------------------------------------------------------------
285 // Implementation of AdapterBlob
286
287 AdapterBlob::AdapterBlob(int size, CodeBuffer* cb, int frame_complete, int frame_size, OopMapSet* oop_maps) :
288 BufferBlob("I2C/C2I adapters", size, cb, frame_complete, frame_size, oop_maps) {
289 CodeCache::commit(this);
290 }
291
292 AdapterBlob* AdapterBlob::create(CodeBuffer* cb, int frame_complete, int frame_size, OopMapSet* oop_maps) {
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 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
299 blob = new (size) AdapterBlob(size, cb, frame_complete, frame_size, oop_maps);
300 }
301 // Track memory usage statistic after releasing CodeCache_lock
302 MemoryService::track_code_cache_memory_usage();
303
304 return blob;
305 }
306
307
308 //----------------------------------------------------------------------------------------------------
309 // Implementation of MethodHandlesAdapterBlob
310
311 MethodHandlesAdapterBlob* MethodHandlesAdapterBlob::create(int buffer_size) {
312 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
313
314 MethodHandlesAdapterBlob* blob = NULL;
315 unsigned int size = sizeof(MethodHandlesAdapterBlob);
316 // align the size to CodeEntryAlignment
317 size = CodeBlob::align_code_offset(size);
318 size += round_to(buffer_size, oopSize);
319 {
320 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
321 blob = new (size) MethodHandlesAdapterBlob(size);
322 if (blob == NULL) {
323 vm_exit_out_of_memory(size, OOM_MALLOC_ERROR, "CodeCache: no room for method handle adapter blob");
324 }
325 }
326 // Track memory usage statistic after releasing CodeCache_lock
327 MemoryService::track_code_cache_memory_usage();
328
329 return blob;
330 }
331
332 //----------------------------------------------------------------------------------------------------
333 // Implementation of BufferedValueTypeBlob
334 BufferedValueTypeBlob::BufferedValueTypeBlob(int size, CodeBuffer* cb, int pack_fields_off, int unpack_fields_off) :
335 BufferBlob("buffered value type", size, cb),
336 _pack_fields_off(pack_fields_off),
337 _unpack_fields_off(unpack_fields_off) {
338 CodeCache::commit(this);
339 }
340
341 BufferedValueTypeBlob* BufferedValueTypeBlob::create(CodeBuffer* cb, int pack_fields_off, int unpack_fields_off) {
342 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
343
344 BufferedValueTypeBlob* blob = NULL;
345 unsigned int size = CodeBlob::allocation_size(cb, sizeof(BufferedValueTypeBlob));
346 {
347 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
348 blob = new (size) BufferedValueTypeBlob(size, cb, pack_fields_off, unpack_fields_off);
349 }
350 // Track memory usage statistic after releasing CodeCache_lock
351 MemoryService::track_code_cache_memory_usage();
352
353 return blob;
354 }
355
356 //----------------------------------------------------------------------------------------------------
357 // Implementation of RuntimeStub
358
359 RuntimeStub::RuntimeStub(
360 const char* name,
361 CodeBuffer* cb,
362 int size,
363 int frame_complete,
364 int frame_size,
365 OopMapSet* oop_maps,
366 bool caller_must_gc_arguments
367 )
368 : RuntimeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments)
369 {
370 }
371
372 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name,
373 CodeBuffer* cb,
374 int frame_complete,
375 int frame_size,
376 OopMapSet* oop_maps,
377 bool caller_must_gc_arguments)
378 {
379 RuntimeStub* stub = NULL;
380 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
381 {
382 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
383 unsigned int size = CodeBlob::allocation_size(cb, sizeof(RuntimeStub));
384 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments);
385 }
386
387 trace_new_stub(stub, "RuntimeStub - ", stub_name);
388
389 return stub;
390 }
391
392
393 void* RuntimeStub::operator new(size_t s, unsigned size) throw() {
394 void* p = CodeCache::allocate(size, CodeBlobType::NonNMethod);
395 if (!p) fatal("Initial size of CodeCache is too small");
396 return p;
397 }
398
399 // operator new shared by all singletons:
400 void* SingletonBlob::operator new(size_t s, unsigned size) throw() {
401 void* p = CodeCache::allocate(size, CodeBlobType::NonNMethod);
402 if (!p) fatal("Initial size of CodeCache is too small");
403 return p;
404 }
405
406
407 //----------------------------------------------------------------------------------------------------
408 // Implementation of DeoptimizationBlob
409
410 DeoptimizationBlob::DeoptimizationBlob(
411 CodeBuffer* cb,
412 int size,
413 OopMapSet* oop_maps,
414 int unpack_offset,
415 int unpack_with_exception_offset,
416 int unpack_with_reexecution_offset,
417 int frame_size
418 )
419 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps)
420 {
421 _unpack_offset = unpack_offset;
422 _unpack_with_exception = unpack_with_exception_offset;
423 _unpack_with_reexecution = unpack_with_reexecution_offset;
424 #ifdef COMPILER1
425 _unpack_with_exception_in_tls = -1;
426 #endif
427 }
428
429
430 DeoptimizationBlob* DeoptimizationBlob::create(
431 CodeBuffer* cb,
432 OopMapSet* oop_maps,
433 int unpack_offset,
434 int unpack_with_exception_offset,
435 int unpack_with_reexecution_offset,
436 int frame_size)
437 {
438 DeoptimizationBlob* blob = NULL;
439 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
440 {
441 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
442 unsigned int size = CodeBlob::allocation_size(cb, sizeof(DeoptimizationBlob));
443 blob = new (size) DeoptimizationBlob(cb,
444 size,
445 oop_maps,
446 unpack_offset,
447 unpack_with_exception_offset,
448 unpack_with_reexecution_offset,
449 frame_size);
450 }
451
452 trace_new_stub(blob, "DeoptimizationBlob");
453
454 return blob;
455 }
456
457
458 //----------------------------------------------------------------------------------------------------
459 // Implementation of UncommonTrapBlob
460
461 #ifdef COMPILER2
462 UncommonTrapBlob::UncommonTrapBlob(
463 CodeBuffer* cb,
464 int size,
465 OopMapSet* oop_maps,
466 int frame_size
467 )
468 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps)
469 {}
470
471
472 UncommonTrapBlob* UncommonTrapBlob::create(
473 CodeBuffer* cb,
474 OopMapSet* oop_maps,
475 int frame_size)
476 {
477 UncommonTrapBlob* blob = NULL;
478 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
479 {
480 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
481 unsigned int size = CodeBlob::allocation_size(cb, sizeof(UncommonTrapBlob));
482 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size);
483 }
484
485 trace_new_stub(blob, "UncommonTrapBlob");
486
487 return blob;
488 }
489
490
491 #endif // COMPILER2
492
493
494 //----------------------------------------------------------------------------------------------------
495 // Implementation of ExceptionBlob
496
497 #ifdef COMPILER2
498 ExceptionBlob::ExceptionBlob(
499 CodeBuffer* cb,
500 int size,
501 OopMapSet* oop_maps,
502 int frame_size
503 )
504 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps)
505 {}
506
507
508 ExceptionBlob* ExceptionBlob::create(
509 CodeBuffer* cb,
510 OopMapSet* oop_maps,
511 int frame_size)
512 {
513 ExceptionBlob* blob = NULL;
514 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
515 {
516 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
517 unsigned int size = CodeBlob::allocation_size(cb, sizeof(ExceptionBlob));
518 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size);
519 }
520
521 trace_new_stub(blob, "ExceptionBlob");
522
523 return blob;
524 }
525
526
527 #endif // COMPILER2
528
529
530 //----------------------------------------------------------------------------------------------------
531 // Implementation of SafepointBlob
532
533 SafepointBlob::SafepointBlob(
534 CodeBuffer* cb,
535 int size,
536 OopMapSet* oop_maps,
537 int frame_size
538 )
539 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps)
540 {}
541
542
543 SafepointBlob* SafepointBlob::create(
544 CodeBuffer* cb,
545 OopMapSet* oop_maps,
546 int frame_size)
547 {
548 SafepointBlob* blob = NULL;
549 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
550 {
551 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
552 unsigned int size = CodeBlob::allocation_size(cb, sizeof(SafepointBlob));
553 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size);
554 }
555
556 trace_new_stub(blob, "SafepointBlob");
557
558 return blob;
559 }
560
561
562 //----------------------------------------------------------------------------------------------------
563 // Verification and printing
564
565 void CodeBlob::print_on(outputStream* st) const {
566 st->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", p2i(this));
567 st->print_cr("Framesize: %d", _frame_size);
568 }
569
570 void CodeBlob::print_value_on(outputStream* st) const {
571 st->print_cr("[CodeBlob]");
572 }
573
574 void RuntimeBlob::verify() {
575 ShouldNotReachHere();
576 }
577
578 void BufferBlob::verify() {
579 // unimplemented
580 }
581
582 void BufferBlob::print_on(outputStream* st) const {
583 RuntimeBlob::print_on(st);
584 print_value_on(st);
585 }
586
587 void BufferBlob::print_value_on(outputStream* st) const {
588 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", p2i(this), name());
589 }
590
591 void RuntimeStub::verify() {
592 // unimplemented
593 }
594
595 void RuntimeStub::print_on(outputStream* st) const {
596 ttyLocker ttyl;
597 RuntimeBlob::print_on(st);
598 st->print("Runtime Stub (" INTPTR_FORMAT "): ", p2i(this));
599 st->print_cr("%s", name());
600 Disassembler::decode((RuntimeBlob*)this, st);
601 }
602
603 void RuntimeStub::print_value_on(outputStream* st) const {
604 st->print("RuntimeStub (" INTPTR_FORMAT "): ", p2i(this)); st->print("%s", name());
605 }
606
607 void SingletonBlob::verify() {
608 // unimplemented
609 }
610
611 void SingletonBlob::print_on(outputStream* st) const {
612 ttyLocker ttyl;
613 RuntimeBlob::print_on(st);
614 st->print_cr("%s", name());
615 Disassembler::decode((RuntimeBlob*)this, st);
616 }
617
618 void SingletonBlob::print_value_on(outputStream* st) const {
619 st->print_cr("%s", name());
620 }
621
622 void DeoptimizationBlob::print_value_on(outputStream* st) const {
623 st->print_cr("Deoptimization (frame not available)");
624 }