1 /*
2 * Copyright (c) 1999, 2020, 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 "ci/ciConstant.hpp"
28 #include "ci/ciEnv.hpp"
29 #include "ci/ciField.hpp"
30 #include "ci/ciInstance.hpp"
31 #include "ci/ciInstanceKlass.hpp"
32 #include "ci/ciMethod.hpp"
33 #include "ci/ciNullObject.hpp"
34 #include "ci/ciReplay.hpp"
35 #include "ci/ciUtilities.inline.hpp"
36 #include "classfile/symbolTable.hpp"
37 #include "classfile/systemDictionary.hpp"
38 #include "classfile/vmSymbols.hpp"
39 #include "code/codeCache.hpp"
40 #include "code/scopeDesc.hpp"
41 #include "compiler/compileBroker.hpp"
42 #include "compiler/compilerEvent.hpp"
43 #include "compiler/compileLog.hpp"
44 #include "compiler/compileTask.hpp"
45 #include "compiler/disassembler.hpp"
46 #include "gc/shared/collectedHeap.inline.hpp"
47 #include "interpreter/linkResolver.hpp"
48 #include "jfr/jfrEvents.hpp"
49 #include "logging/log.hpp"
50 #include "memory/allocation.inline.hpp"
51 #include "memory/oopFactory.hpp"
52 #include "memory/resourceArea.hpp"
53 #include "memory/universe.hpp"
54 #include "oops/constantPool.inline.hpp"
55 #include "oops/cpCache.inline.hpp"
56 #include "oops/method.inline.hpp"
57 #include "oops/methodData.hpp"
58 #include "oops/objArrayKlass.hpp"
59 #include "oops/objArrayOop.inline.hpp"
60 #include "oops/oop.inline.hpp"
61 #include "prims/jvmtiExport.hpp"
62 #include "runtime/handles.inline.hpp"
63 #include "runtime/init.hpp"
64 #include "runtime/reflection.hpp"
65 #include "runtime/jniHandles.inline.hpp"
66 #include "runtime/safepointVerifiers.hpp"
67 #include "runtime/sharedRuntime.hpp"
68 #include "runtime/thread.inline.hpp"
69 #include "utilities/dtrace.hpp"
70 #include "utilities/macros.hpp"
71 #ifdef COMPILER1
72 #include "c1/c1_Runtime1.hpp"
73 #endif
74 #ifdef COMPILER2
75 #include "opto/runtime.hpp"
76 #endif
77
78 // ciEnv
79 //
80 // This class is the top level broker for requests from the compiler
81 // to the VM.
82
83 ciObject* ciEnv::_null_object_instance;
84
85 #define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL;
86 WK_KLASSES_DO(WK_KLASS_DEFN)
87 #undef WK_KLASS_DEFN
88
89 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
90 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
91 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
92
93 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
94 jobject ciEnv::_ArrayStoreException_handle = NULL;
95 jobject ciEnv::_ClassCastException_handle = NULL;
96
97 #ifndef PRODUCT
98 static bool firstEnv = true;
99 #endif /* PRODUCT */
100
101 // ------------------------------------------------------------------
102 // ciEnv::ciEnv
103 ciEnv::ciEnv(CompileTask* task)
104 : _ciEnv_arena(mtCompiler) {
105 VM_ENTRY_MARK;
106
107 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
108 thread->set_env(this);
109 assert(ciEnv::current() == this, "sanity");
110
111 _oop_recorder = NULL;
112 _debug_info = NULL;
113 _dependencies = NULL;
114 _failure_reason = NULL;
115 _inc_decompile_count_on_failure = true;
116 _compilable = MethodCompilable;
117 _break_at_compile = false;
118 _compiler_data = NULL;
119 #ifndef PRODUCT
120 assert(!firstEnv, "not initialized properly");
121 #endif /* !PRODUCT */
122
123 _num_inlined_bytecodes = 0;
124 assert(task == NULL || thread->task() == task, "sanity");
125 if (task != NULL) {
126 task->mark_started(os::elapsed_counter());
127 }
128 _task = task;
129 _log = NULL;
130
131 // Temporary buffer for creating symbols and such.
132 _name_buffer = NULL;
133 _name_buffer_len = 0;
134
135 _arena = &_ciEnv_arena;
136 _factory = new (_arena) ciObjectFactory(_arena, 128);
137
138 // Preload commonly referenced system ciObjects.
139
140 // During VM initialization, these instances have not yet been created.
141 // Assertions ensure that these instances are not accessed before
142 // their initialization.
143
144 assert(Universe::is_fully_initialized(), "should be complete");
145
146 oop o = Universe::null_ptr_exception_instance();
147 assert(o != NULL, "should have been initialized");
148 _NullPointerException_instance = get_object(o)->as_instance();
149 o = Universe::arithmetic_exception_instance();
150 assert(o != NULL, "should have been initialized");
151 _ArithmeticException_instance = get_object(o)->as_instance();
152
153 _ArrayIndexOutOfBoundsException_instance = NULL;
154 _ArrayStoreException_instance = NULL;
155 _ClassCastException_instance = NULL;
156 _the_null_string = NULL;
157 _the_min_jint_string = NULL;
158
159 _jvmti_redefinition_count = 0;
160 _jvmti_can_hotswap_or_post_breakpoint = false;
161 _jvmti_can_access_local_variables = false;
162 _jvmti_can_post_on_exceptions = false;
163 _jvmti_can_pop_frame = false;
164 }
165
166 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
167 ASSERT_IN_VM;
168
169 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
170 CompilerThread* current_thread = CompilerThread::current();
171 assert(current_thread->env() == NULL, "must be");
172 current_thread->set_env(this);
173 assert(ciEnv::current() == this, "sanity");
174
175 _oop_recorder = NULL;
176 _debug_info = NULL;
177 _dependencies = NULL;
178 _failure_reason = NULL;
179 _inc_decompile_count_on_failure = true;
180 _compilable = MethodCompilable_never;
181 _break_at_compile = false;
182 _compiler_data = NULL;
183 #ifndef PRODUCT
184 assert(firstEnv, "must be first");
185 firstEnv = false;
186 #endif /* !PRODUCT */
187
188 _num_inlined_bytecodes = 0;
189 _task = NULL;
190 _log = NULL;
191
192 // Temporary buffer for creating symbols and such.
193 _name_buffer = NULL;
194 _name_buffer_len = 0;
195
196 _arena = arena;
197 _factory = new (_arena) ciObjectFactory(_arena, 128);
198
199 // Preload commonly referenced system ciObjects.
200
201 // During VM initialization, these instances have not yet been created.
202 // Assertions ensure that these instances are not accessed before
203 // their initialization.
204
205 assert(Universe::is_fully_initialized(), "must be");
206
207 _NullPointerException_instance = NULL;
208 _ArithmeticException_instance = NULL;
209 _ArrayIndexOutOfBoundsException_instance = NULL;
210 _ArrayStoreException_instance = NULL;
211 _ClassCastException_instance = NULL;
212 _the_null_string = NULL;
213 _the_min_jint_string = NULL;
214
215 _jvmti_redefinition_count = 0;
216 _jvmti_can_hotswap_or_post_breakpoint = false;
217 _jvmti_can_access_local_variables = false;
218 _jvmti_can_post_on_exceptions = false;
219 _jvmti_can_pop_frame = false;
220 }
221
222 ciEnv::~ciEnv() {
223 GUARDED_VM_ENTRY(
224 CompilerThread* current_thread = CompilerThread::current();
225 _factory->remove_symbols();
226 // Need safepoint to clear the env on the thread. RedefineClasses might
227 // be reading it.
228 current_thread->set_env(NULL);
229 )
230 }
231
232 // ------------------------------------------------------------------
233 // Cache Jvmti state
234 bool ciEnv::cache_jvmti_state() {
235 VM_ENTRY_MARK;
236 // Get Jvmti capabilities under lock to get consistant values.
237 MutexLocker mu(JvmtiThreadState_lock);
238 _jvmti_redefinition_count = JvmtiExport::redefinition_count();
239 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
240 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
241 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
242 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
243 _jvmti_can_get_owned_monitor_info = JvmtiExport::can_get_owned_monitor_info();
244 _jvmti_can_walk_any_space = JvmtiExport::can_walk_any_space();
245 return _task != NULL && _task->method()->is_old();
246 }
247
248 bool ciEnv::jvmti_state_changed() const {
249 // Some classes were redefined
250 if (_jvmti_redefinition_count != JvmtiExport::redefinition_count()) {
251 return true;
252 }
253
254 if (!_jvmti_can_access_local_variables &&
255 JvmtiExport::can_access_local_variables()) {
256 return true;
257 }
258 if (!_jvmti_can_hotswap_or_post_breakpoint &&
259 JvmtiExport::can_hotswap_or_post_breakpoint()) {
260 return true;
261 }
262 if (!_jvmti_can_post_on_exceptions &&
263 JvmtiExport::can_post_on_exceptions()) {
264 return true;
265 }
266 if (!_jvmti_can_pop_frame &&
267 JvmtiExport::can_pop_frame()) {
268 return true;
269 }
270 if (!_jvmti_can_get_owned_monitor_info &&
271 JvmtiExport::can_get_owned_monitor_info()) {
272 return true;
273 }
274 if (!_jvmti_can_walk_any_space &&
275 JvmtiExport::can_walk_any_space()) {
276 return true;
277 }
278
279 return false;
280 }
281
282 // ------------------------------------------------------------------
283 // Cache DTrace flags
284 void ciEnv::cache_dtrace_flags() {
285 // Need lock?
286 _dtrace_extended_probes = ExtendedDTraceProbes;
287 if (_dtrace_extended_probes) {
288 _dtrace_monitor_probes = true;
289 _dtrace_method_probes = true;
290 _dtrace_alloc_probes = true;
291 } else {
292 _dtrace_monitor_probes = DTraceMonitorProbes;
293 _dtrace_method_probes = DTraceMethodProbes;
294 _dtrace_alloc_probes = DTraceAllocProbes;
295 }
296 }
297
298 // ------------------------------------------------------------------
299 // helper for lazy exception creation
300 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
301 VM_ENTRY_MARK;
302 if (handle == NULL) {
303 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
304 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
305 jobject objh = NULL;
306 if (!HAS_PENDING_EXCEPTION && k != NULL) {
307 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
308 if (!HAS_PENDING_EXCEPTION)
309 objh = JNIHandles::make_global(Handle(THREAD, obj));
310 }
311 if (HAS_PENDING_EXCEPTION) {
312 CLEAR_PENDING_EXCEPTION;
313 } else {
314 handle = objh;
315 }
316 }
317 oop obj = JNIHandles::resolve(handle);
318 return obj == NULL? NULL: get_object(obj)->as_instance();
319 }
320
321 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
322 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
323 _ArrayIndexOutOfBoundsException_instance
324 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
325 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
326 }
327 return _ArrayIndexOutOfBoundsException_instance;
328 }
329 ciInstance* ciEnv::ArrayStoreException_instance() {
330 if (_ArrayStoreException_instance == NULL) {
331 _ArrayStoreException_instance
332 = get_or_create_exception(_ArrayStoreException_handle,
333 vmSymbols::java_lang_ArrayStoreException());
334 }
335 return _ArrayStoreException_instance;
336 }
337 ciInstance* ciEnv::ClassCastException_instance() {
338 if (_ClassCastException_instance == NULL) {
339 _ClassCastException_instance
340 = get_or_create_exception(_ClassCastException_handle,
341 vmSymbols::java_lang_ClassCastException());
342 }
343 return _ClassCastException_instance;
344 }
345
346 ciInstance* ciEnv::the_null_string() {
347 if (_the_null_string == NULL) {
348 VM_ENTRY_MARK;
349 _the_null_string = get_object(Universe::the_null_string())->as_instance();
350 }
351 return _the_null_string;
352 }
353
354 ciInstance* ciEnv::the_min_jint_string() {
355 if (_the_min_jint_string == NULL) {
356 VM_ENTRY_MARK;
357 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
358 }
359 return _the_min_jint_string;
360 }
361
362 // ------------------------------------------------------------------
363 // ciEnv::get_method_from_handle
364 ciMethod* ciEnv::get_method_from_handle(Method* method) {
365 VM_ENTRY_MARK;
366 return get_metadata(method)->as_method();
367 }
368
369 // ------------------------------------------------------------------
370 // ciEnv::array_element_offset_in_bytes
371 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
372 VM_ENTRY_MARK;
373 objArrayOop a = (objArrayOop)a_h->get_oop();
374 assert(a->is_objArray(), "");
375 int length = a->length();
376 oop o = o_h->get_oop();
377 for (int i = 0; i < length; i++) {
378 if (a->obj_at(i) == o) return i;
379 }
380 return -1;
381 }
382
383
384 // ------------------------------------------------------------------
385 // ciEnv::check_klass_accessiblity
386 //
387 // Note: the logic of this method should mirror the logic of
388 // ConstantPool::verify_constant_pool_resolve.
389 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
390 Klass* resolved_klass) {
391 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
392 return true;
393 }
394 if (accessing_klass->is_obj_array_klass()) {
395 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
396 }
397 if (!accessing_klass->is_instance_klass()) {
398 return true;
399 }
400
401 if (resolved_klass->is_objArray_klass()) {
402 // Find the element klass, if this is an array.
403 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
404 }
405 if (resolved_klass->is_instance_klass()) {
406 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
407 InstanceKlass::cast(resolved_klass),
408 true) == Reflection::ACCESS_OK);
409 }
410 return true;
411 }
412
413 // ------------------------------------------------------------------
414 // ciEnv::get_klass_by_name_impl
415 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
416 const constantPoolHandle& cpool,
417 ciSymbol* name,
418 bool require_local) {
419 ASSERT_IN_VM;
420 EXCEPTION_CONTEXT;
421
422 // Now we need to check the SystemDictionary
423 Symbol* sym = name->get_symbol();
424 if (Signature::has_envelope(sym)) {
425 // This is a name from a signature. Strip off the trimmings.
426 // Call recursive to keep scope of strippedsym.
427 TempNewSymbol strippedsym = Signature::strip_envelope(sym);
428 ciSymbol* strippedname = get_symbol(strippedsym);
429 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
430 }
431
432 // Check for prior unloaded klass. The SystemDictionary's answers
433 // can vary over time but the compiler needs consistency.
434 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
435 if (unloaded_klass != NULL) {
436 if (require_local) return NULL;
437 return unloaded_klass;
438 }
439
440 Handle loader(THREAD, (oop)NULL);
441 Handle domain(THREAD, (oop)NULL);
442 if (accessing_klass != NULL) {
443 loader = Handle(THREAD, accessing_klass->loader());
444 domain = Handle(THREAD, accessing_klass->protection_domain());
445 }
446
447 // setup up the proper type to return on OOM
448 ciKlass* fail_type;
449 if (sym->char_at(0) == JVM_SIGNATURE_ARRAY) {
450 fail_type = _unloaded_ciobjarrayklass;
451 } else {
452 fail_type = _unloaded_ciinstance_klass;
453 }
454 Klass* found_klass;
455 {
456 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
457 MutexLocker ml(Compile_lock);
458 Klass* kls;
459 if (!require_local) {
460 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
461 KILL_COMPILE_ON_FATAL_(fail_type));
462 } else {
463 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
464 KILL_COMPILE_ON_FATAL_(fail_type));
465 }
466 found_klass = kls;
467 }
468
469 // If we fail to find an array klass, look again for its element type.
470 // The element type may be available either locally or via constraints.
471 // In either case, if we can find the element type in the system dictionary,
472 // we must build an array type around it. The CI requires array klasses
473 // to be loaded if their element klasses are loaded, except when memory
474 // is exhausted.
475 if (Signature::is_array(sym) &&
476 (sym->char_at(1) == JVM_SIGNATURE_ARRAY || sym->char_at(1) == JVM_SIGNATURE_CLASS)) {
477 // We have an unloaded array.
478 // Build it on the fly if the element class exists.
479 SignatureStream ss(sym, false);
480 ss.skip_array_prefix(1);
481 // Get element ciKlass recursively.
482 ciKlass* elem_klass =
483 get_klass_by_name_impl(accessing_klass,
484 cpool,
485 get_symbol(ss.as_symbol()),
486 require_local);
487 if (elem_klass != NULL && elem_klass->is_loaded()) {
488 // Now make an array for it
489 return ciObjArrayKlass::make_impl(elem_klass);
490 }
491 }
492
493 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
494 // Look inside the constant pool for pre-resolved class entries.
495 for (int i = cpool->length() - 1; i >= 1; i--) {
496 if (cpool->tag_at(i).is_klass()) {
497 Klass* kls = cpool->resolved_klass_at(i);
498 if (kls->name() == sym) {
499 found_klass = kls;
500 break;
501 }
502 }
503 }
504 }
505
506 if (found_klass != NULL) {
507 // Found it. Build a CI handle.
508 return get_klass(found_klass);
509 }
510
511 if (require_local) return NULL;
512
513 // Not yet loaded into the VM, or not governed by loader constraints.
514 // Make a CI representative for it.
515 return get_unloaded_klass(accessing_klass, name);
516 }
517
518 // ------------------------------------------------------------------
519 // ciEnv::get_klass_by_name
520 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
521 ciSymbol* klass_name,
522 bool require_local) {
523 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
524 constantPoolHandle(),
525 klass_name,
526 require_local);)
527 }
528
529 // ------------------------------------------------------------------
530 // ciEnv::get_klass_by_index_impl
531 //
532 // Implementation of get_klass_by_index.
533 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
534 int index,
535 bool& is_accessible,
536 ciInstanceKlass* accessor) {
537 EXCEPTION_CONTEXT;
538 Klass* klass = NULL;
539 Symbol* klass_name = NULL;
540
541 if (cpool->tag_at(index).is_symbol()) {
542 klass_name = cpool->symbol_at(index);
543 } else {
544 // Check if it's resolved if it's not a symbol constant pool entry.
545 klass = ConstantPool::klass_at_if_loaded(cpool, index);
546 // Try to look it up by name.
547 if (klass == NULL) {
548 klass_name = cpool->klass_name_at(index);
549 }
550 }
551
552 if (klass == NULL) {
553 // Not found in constant pool. Use the name to do the lookup.
554 ciKlass* k = get_klass_by_name_impl(accessor,
555 cpool,
556 get_symbol(klass_name),
557 false);
558 // Calculate accessibility the hard way.
559 if (!k->is_loaded()) {
560 is_accessible = false;
561 } else if (k->loader() != accessor->loader() &&
562 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
563 // Loaded only remotely. Not linked yet.
564 is_accessible = false;
565 } else {
566 // Linked locally, and we must also check public/private, etc.
567 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
568 }
569 return k;
570 }
571
572 // Check for prior unloaded klass. The SystemDictionary's answers
573 // can vary over time but the compiler needs consistency.
574 ciSymbol* name = get_symbol(klass->name());
575 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
576 if (unloaded_klass != NULL) {
577 is_accessible = false;
578 return unloaded_klass;
579 }
580
581 // It is known to be accessible, since it was found in the constant pool.
582 is_accessible = true;
583 return get_klass(klass);
584 }
585
586 // ------------------------------------------------------------------
587 // ciEnv::get_klass_by_index
588 //
589 // Get a klass from the constant pool.
590 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
591 int index,
592 bool& is_accessible,
593 ciInstanceKlass* accessor) {
594 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
595 }
596
597 // ------------------------------------------------------------------
598 // ciEnv::get_constant_by_index_impl
599 //
600 // Implementation of get_constant_by_index().
601 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
602 int pool_index, int cache_index,
603 ciInstanceKlass* accessor) {
604 bool ignore_will_link;
605 EXCEPTION_CONTEXT;
606 int index = pool_index;
607 if (cache_index >= 0) {
608 assert(index < 0, "only one kind of index at a time");
609 index = cpool->object_to_cp_index(cache_index);
610 oop obj = cpool->resolved_references()->obj_at(cache_index);
611 if (obj != NULL) {
612 if (obj == Universe::the_null_sentinel()) {
613 return ciConstant(T_OBJECT, get_object(NULL));
614 }
615 BasicType bt = T_OBJECT;
616 if (cpool->tag_at(index).is_dynamic_constant())
617 bt = Signature::basic_type(cpool->uncached_signature_ref_at(index));
618 if (is_reference_type(bt)) {
619 } else {
620 // we have to unbox the primitive value
621 if (!is_java_primitive(bt)) return ciConstant();
622 jvalue value;
623 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
624 assert(bt2 == bt, "");
625 switch (bt2) {
626 case T_DOUBLE: return ciConstant(value.d);
627 case T_FLOAT: return ciConstant(value.f);
628 case T_LONG: return ciConstant(value.j);
629 case T_INT: return ciConstant(bt2, value.i);
630 case T_SHORT: return ciConstant(bt2, value.s);
631 case T_BYTE: return ciConstant(bt2, value.b);
632 case T_CHAR: return ciConstant(bt2, value.c);
633 case T_BOOLEAN: return ciConstant(bt2, value.z);
634 default: return ciConstant();
635 }
636 }
637 ciObject* ciobj = get_object(obj);
638 if (ciobj->is_array()) {
639 return ciConstant(T_ARRAY, ciobj);
640 } else {
641 assert(ciobj->is_instance(), "should be an instance");
642 return ciConstant(T_OBJECT, ciobj);
643 }
644 }
645 }
646 constantTag tag = cpool->tag_at(index);
647 if (tag.is_int()) {
648 return ciConstant(T_INT, (jint)cpool->int_at(index));
649 } else if (tag.is_long()) {
650 return ciConstant((jlong)cpool->long_at(index));
651 } else if (tag.is_float()) {
652 return ciConstant((jfloat)cpool->float_at(index));
653 } else if (tag.is_double()) {
654 return ciConstant((jdouble)cpool->double_at(index));
655 } else if (tag.is_string()) {
656 oop string = NULL;
657 assert(cache_index >= 0, "should have a cache index");
658 if (cpool->is_pseudo_string_at(index)) {
659 string = cpool->pseudo_string_at(index, cache_index);
660 } else {
661 string = cpool->string_at(index, cache_index, THREAD);
662 if (HAS_PENDING_EXCEPTION) {
663 CLEAR_PENDING_EXCEPTION;
664 record_out_of_memory_failure();
665 return ciConstant();
666 }
667 }
668 ciObject* constant = get_object(string);
669 if (constant->is_array()) {
670 return ciConstant(T_ARRAY, constant);
671 } else {
672 assert (constant->is_instance(), "must be an instance, or not? ");
673 return ciConstant(T_OBJECT, constant);
674 }
675 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
676 // 4881222: allow ldc to take a class type
677 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
678 if (HAS_PENDING_EXCEPTION) {
679 CLEAR_PENDING_EXCEPTION;
680 record_out_of_memory_failure();
681 return ciConstant();
682 }
683 assert (klass->is_instance_klass() || klass->is_array_klass(),
684 "must be an instance or array klass ");
685 return ciConstant(T_OBJECT, klass->java_mirror());
686 } else if (tag.is_method_type()) {
687 // must execute Java code to link this CP entry into cache[i].f1
688 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
689 ciObject* ciobj = get_unloaded_method_type_constant(signature);
690 return ciConstant(T_OBJECT, ciobj);
691 } else if (tag.is_method_handle()) {
692 // must execute Java code to link this CP entry into cache[i].f1
693 int ref_kind = cpool->method_handle_ref_kind_at(index);
694 int callee_index = cpool->method_handle_klass_index_at(index);
695 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
696 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
697 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
698 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
699 return ciConstant(T_OBJECT, ciobj);
700 } else if (tag.is_dynamic_constant()) {
701 return ciConstant();
702 } else {
703 ShouldNotReachHere();
704 return ciConstant();
705 }
706 }
707
708 // ------------------------------------------------------------------
709 // ciEnv::get_constant_by_index
710 //
711 // Pull a constant out of the constant pool. How appropriate.
712 //
713 // Implementation note: this query is currently in no way cached.
714 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
715 int pool_index, int cache_index,
716 ciInstanceKlass* accessor) {
717 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
718 }
719
720 // ------------------------------------------------------------------
721 // ciEnv::get_field_by_index_impl
722 //
723 // Implementation of get_field_by_index.
724 //
725 // Implementation note: the results of field lookups are cached
726 // in the accessor klass.
727 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
728 int index) {
729 ciConstantPoolCache* cache = accessor->field_cache();
730 if (cache == NULL) {
731 ciField* field = new (arena()) ciField(accessor, index);
732 return field;
733 } else {
734 ciField* field = (ciField*)cache->get(index);
735 if (field == NULL) {
736 field = new (arena()) ciField(accessor, index);
737 cache->insert(index, field);
738 }
739 return field;
740 }
741 }
742
743 // ------------------------------------------------------------------
744 // ciEnv::get_field_by_index
745 //
746 // Get a field by index from a klass's constant pool.
747 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
748 int index) {
749 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
750 }
751
752 // ------------------------------------------------------------------
753 // ciEnv::lookup_method
754 //
755 // Perform an appropriate method lookup based on accessor, holder,
756 // name, signature, and bytecode.
757 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
758 ciKlass* holder,
759 Symbol* name,
760 Symbol* sig,
761 Bytecodes::Code bc,
762 constantTag tag) {
763 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
764 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
765
766 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
767 Klass* holder_klass = holder->get_Klass();
768 Method* dest_method;
769 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::AccessCheck::required, tag);
770 switch (bc) {
771 case Bytecodes::_invokestatic:
772 dest_method =
773 LinkResolver::resolve_static_call_or_null(link_info);
774 break;
775 case Bytecodes::_invokespecial:
776 dest_method =
777 LinkResolver::resolve_special_call_or_null(link_info);
778 break;
779 case Bytecodes::_invokeinterface:
780 dest_method =
781 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
782 break;
783 case Bytecodes::_invokevirtual:
784 dest_method =
785 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
786 break;
787 default: ShouldNotReachHere();
788 }
789
790 return dest_method;
791 }
792
793
794 // ------------------------------------------------------------------
795 // ciEnv::get_method_by_index_impl
796 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
797 int index, Bytecodes::Code bc,
798 ciInstanceKlass* accessor) {
799 assert(cpool.not_null(), "need constant pool");
800 assert(accessor != NULL, "need origin of access");
801 if (bc == Bytecodes::_invokedynamic) {
802 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
803 bool is_resolved = !cpce->is_f1_null();
804 // FIXME: code generation could allow for null (unlinked) call site
805 // The call site could be made patchable as follows:
806 // Load the appendix argument from the constant pool.
807 // Test the appendix argument and jump to a known deopt routine if it is null.
808 // Jump through a patchable call site, which is initially a deopt routine.
809 // Patch the call site to the nmethod entry point of the static compiled lambda form.
810 // As with other two-component call sites, both values must be independently verified.
811
812 if (is_resolved) {
813 // Get the invoker Method* from the constant pool.
814 // (The appendix argument, if any, will be noted in the method's signature.)
815 Method* adapter = cpce->f1_as_method();
816 return get_method(adapter);
817 }
818
819 // Fake a method that is equivalent to a declared method.
820 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
821 ciSymbol* name = ciSymbol::invokeBasic_name();
822 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
823 return get_unloaded_method(holder, name, signature, accessor);
824 } else {
825 const int holder_index = cpool->klass_ref_index_at(index);
826 bool holder_is_accessible;
827 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
828
829 // Get the method's name and signature.
830 Symbol* name_sym = cpool->name_ref_at(index);
831 Symbol* sig_sym = cpool->signature_ref_at(index);
832
833 if (cpool->has_preresolution()
834 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
835 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
836 // Short-circuit lookups for JSR 292-related call sites.
837 // That is, do not rely only on name-based lookups, because they may fail
838 // if the names are not resolvable in the boot class loader (7056328).
839 switch (bc) {
840 case Bytecodes::_invokevirtual:
841 case Bytecodes::_invokeinterface:
842 case Bytecodes::_invokespecial:
843 case Bytecodes::_invokestatic:
844 {
845 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
846 if (m != NULL) {
847 return get_method(m);
848 }
849 }
850 break;
851 default:
852 break;
853 }
854 }
855
856 if (holder_is_accessible) { // Our declared holder is loaded.
857 constantTag tag = cpool->tag_ref_at(index);
858 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
859 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
860 if (m != NULL &&
861 (bc == Bytecodes::_invokestatic
862 ? m->method_holder()->is_not_initialized()
863 : !m->method_holder()->is_loaded())) {
864 m = NULL;
865 }
866 #ifdef ASSERT
867 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
868 m = NULL;
869 }
870 #endif
871 if (m != NULL) {
872 // We found the method.
873 return get_method(m);
874 }
875 }
876
877 // Either the declared holder was not loaded, or the method could
878 // not be found. Create a dummy ciMethod to represent the failed
879 // lookup.
880 ciSymbol* name = get_symbol(name_sym);
881 ciSymbol* signature = get_symbol(sig_sym);
882 return get_unloaded_method(holder, name, signature, accessor);
883 }
884 }
885
886
887 // ------------------------------------------------------------------
888 // ciEnv::get_instance_klass_for_declared_method_holder
889 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
890 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
891 // instead of a ciInstanceKlass. For that case simply pretend that the
892 // declared holder is Object.clone since that's where the call will bottom out.
893 // A more correct fix would trickle out through many interfaces in CI,
894 // requiring ciInstanceKlass* to become ciKlass* and many more places would
895 // require checks to make sure the expected type was found. Given that this
896 // only occurs for clone() the more extensive fix seems like overkill so
897 // instead we simply smear the array type into Object.
898 guarantee(method_holder != NULL, "no method holder");
899 if (method_holder->is_instance_klass()) {
900 return method_holder->as_instance_klass();
901 } else if (method_holder->is_array_klass()) {
902 return current()->Object_klass();
903 } else {
904 ShouldNotReachHere();
905 }
906 return NULL;
907 }
908
909
910 // ------------------------------------------------------------------
911 // ciEnv::get_method_by_index
912 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
913 int index, Bytecodes::Code bc,
914 ciInstanceKlass* accessor) {
915 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
916 }
917
918
919 // ------------------------------------------------------------------
920 // ciEnv::name_buffer
921 char *ciEnv::name_buffer(int req_len) {
922 if (_name_buffer_len < req_len) {
923 if (_name_buffer == NULL) {
924 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
925 _name_buffer_len = req_len;
926 } else {
927 _name_buffer =
928 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
929 _name_buffer_len = req_len;
930 }
931 }
932 return _name_buffer;
933 }
934
935 // ------------------------------------------------------------------
936 // ciEnv::is_in_vm
937 bool ciEnv::is_in_vm() {
938 return JavaThread::current()->thread_state() == _thread_in_vm;
939 }
940
941 // ------------------------------------------------------------------
942 // ciEnv::validate_compile_task_dependencies
943 //
944 // Check for changes during compilation (e.g. class loads, evolution,
945 // breakpoints, call site invalidation).
946 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
947 if (failing()) return; // no need for further checks
948
949 Dependencies::DepType result = dependencies()->validate_dependencies(_task);
950 if (result != Dependencies::end_marker) {
951 if (result == Dependencies::call_site_target_value) {
952 _inc_decompile_count_on_failure = false;
953 record_failure("call site target change");
954 } else if (Dependencies::is_klass_type(result)) {
955 record_failure("concurrent class loading");
956 } else {
957 record_failure("invalid non-klass dependency");
958 }
959 }
960 }
961
962 // ------------------------------------------------------------------
963 // ciEnv::register_method
964 void ciEnv::register_method(ciMethod* target,
965 int entry_bci,
966 CodeOffsets* offsets,
967 int orig_pc_offset,
968 CodeBuffer* code_buffer,
969 int frame_words,
970 OopMapSet* oop_map_set,
971 ExceptionHandlerTable* handler_table,
972 ImplicitExceptionTable* inc_table,
973 AbstractCompiler* compiler,
974 bool has_unsafe_access,
975 bool has_wide_vectors,
976 RTMState rtm_state) {
977 VM_ENTRY_MARK;
978 nmethod* nm = NULL;
979 {
980 // To prevent compile queue updates.
981 MutexLocker locker(THREAD, MethodCompileQueue_lock);
982
983 // Prevent SystemDictionary::add_to_hierarchy from running
984 // and invalidating our dependencies until we install this method.
985 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
986 MutexLocker ml(Compile_lock);
987 NoSafepointVerifier nsv;
988
989 // Change in Jvmti state may invalidate compilation.
990 if (!failing() && jvmti_state_changed()) {
991 record_failure("Jvmti state change invalidated dependencies");
992 }
993
994 // Change in DTrace flags may invalidate compilation.
995 if (!failing() &&
996 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
997 (!dtrace_method_probes() && DTraceMethodProbes) ||
998 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
999 record_failure("DTrace flags change invalidated dependencies");
1000 }
1001
1002 if (!failing() && target->needs_clinit_barrier() &&
1003 target->holder()->is_in_error_state()) {
1004 record_failure("method holder is in error state");
1005 }
1006
1007 if (!failing()) {
1008 if (log() != NULL) {
1009 // Log the dependencies which this compilation declares.
1010 dependencies()->log_all_dependencies();
1011 }
1012
1013 // Encode the dependencies now, so we can check them right away.
1014 dependencies()->encode_content_bytes();
1015
1016 // Check for {class loads, evolution, breakpoints, ...} during compilation
1017 validate_compile_task_dependencies(target);
1018 }
1019
1020 methodHandle method(THREAD, target->get_Method());
1021
1022 #if INCLUDE_RTM_OPT
1023 if (!failing() && (rtm_state != NoRTM) &&
1024 (method()->method_data() != NULL) &&
1025 (method()->method_data()->rtm_state() != rtm_state)) {
1026 // Preemptive decompile if rtm state was changed.
1027 record_failure("RTM state change invalidated rtm code");
1028 }
1029 #endif
1030
1031 if (failing()) {
1032 // While not a true deoptimization, it is a preemptive decompile.
1033 MethodData* mdo = method()->method_data();
1034 if (mdo != NULL && _inc_decompile_count_on_failure) {
1035 mdo->inc_decompile_count();
1036 }
1037
1038 // All buffers in the CodeBuffer are allocated in the CodeCache.
1039 // If the code buffer is created on each compile attempt
1040 // as in C2, then it must be freed.
1041 code_buffer->free_blob();
1042 return;
1043 }
1044
1045 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1046 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1047
1048 nm = nmethod::new_nmethod(method,
1049 compile_id(),
1050 entry_bci,
1051 offsets,
1052 orig_pc_offset,
1053 debug_info(), dependencies(), code_buffer,
1054 frame_words, oop_map_set,
1055 handler_table, inc_table,
1056 compiler, task()->comp_level());
1057
1058 // Free codeBlobs
1059 code_buffer->free_blob();
1060
1061 if (nm != NULL) {
1062 nm->set_has_unsafe_access(has_unsafe_access);
1063 nm->set_has_wide_vectors(has_wide_vectors);
1064 #if INCLUDE_RTM_OPT
1065 nm->set_rtm_state(rtm_state);
1066 #endif
1067
1068 // Record successful registration.
1069 // (Put nm into the task handle *before* publishing to the Java heap.)
1070 if (task() != NULL) {
1071 task()->set_code(nm);
1072 }
1073
1074 if (entry_bci == InvocationEntryBci) {
1075 if (TieredCompilation) {
1076 // If there is an old version we're done with it
1077 CompiledMethod* old = method->code();
1078 if (TraceMethodReplacement && old != NULL) {
1079 ResourceMark rm;
1080 char *method_name = method->name_and_sig_as_C_string();
1081 tty->print_cr("Replacing method %s", method_name);
1082 }
1083 if (old != NULL) {
1084 old->make_not_used();
1085 }
1086 }
1087
1088 LogTarget(Info, nmethod, install) lt;
1089 if (lt.is_enabled()) {
1090 ResourceMark rm;
1091 char *method_name = method->name_and_sig_as_C_string();
1092 lt.print("Installing method (%d) %s ",
1093 task()->comp_level(), method_name);
1094 }
1095 // Allow the code to be executed
1096 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
1097 if (nm->make_in_use()) {
1098 method->set_code(method, nm);
1099 }
1100 } else {
1101 LogTarget(Info, nmethod, install) lt;
1102 if (lt.is_enabled()) {
1103 ResourceMark rm;
1104 char *method_name = method->name_and_sig_as_C_string();
1105 lt.print("Installing osr method (%d) %s @ %d",
1106 task()->comp_level(), method_name, entry_bci);
1107 }
1108 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
1109 if (nm->make_in_use()) {
1110 method->method_holder()->add_osr_nmethod(nm);
1111 }
1112 }
1113 }
1114 } // safepoints are allowed again
1115
1116 if (nm != NULL) {
1117 // JVMTI -- compiled method notification (must be done outside lock)
1118 nm->post_compiled_method_load_event();
1119 } else {
1120 // The CodeCache is full.
1121 record_failure("code cache is full");
1122 }
1123 }
1124
1125
1126 // ------------------------------------------------------------------
1127 // ciEnv::find_system_klass
1128 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1129 VM_ENTRY_MARK;
1130 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1131 }
1132
1133 // ------------------------------------------------------------------
1134 // ciEnv::comp_level
1135 int ciEnv::comp_level() {
1136 if (task() == NULL) return CompLevel_highest_tier;
1137 return task()->comp_level();
1138 }
1139
1140 // ------------------------------------------------------------------
1141 // ciEnv::compile_id
1142 uint ciEnv::compile_id() {
1143 if (task() == NULL) return 0;
1144 return task()->compile_id();
1145 }
1146
1147 // ------------------------------------------------------------------
1148 // ciEnv::notice_inlined_method()
1149 void ciEnv::notice_inlined_method(ciMethod* method) {
1150 _num_inlined_bytecodes += method->code_size_for_inlining();
1151 }
1152
1153 // ------------------------------------------------------------------
1154 // ciEnv::num_inlined_bytecodes()
1155 int ciEnv::num_inlined_bytecodes() const {
1156 return _num_inlined_bytecodes;
1157 }
1158
1159 // ------------------------------------------------------------------
1160 // ciEnv::record_failure()
1161 void ciEnv::record_failure(const char* reason) {
1162 if (_failure_reason == NULL) {
1163 // Record the first failure reason.
1164 _failure_reason = reason;
1165 }
1166 }
1167
1168 void ciEnv::report_failure(const char* reason) {
1169 EventCompilationFailure event;
1170 if (event.should_commit()) {
1171 CompilerEvent::CompilationFailureEvent::post(event, compile_id(), reason);
1172 }
1173 }
1174
1175 // ------------------------------------------------------------------
1176 // ciEnv::record_method_not_compilable()
1177 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1178 int new_compilable =
1179 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1180
1181 // Only note transitions to a worse state
1182 if (new_compilable > _compilable) {
1183 if (log() != NULL) {
1184 if (all_tiers) {
1185 log()->elem("method_not_compilable");
1186 } else {
1187 log()->elem("method_not_compilable_at_tier level='%d'",
1188 current()->task()->comp_level());
1189 }
1190 }
1191 _compilable = new_compilable;
1192
1193 // Reset failure reason; this one is more important.
1194 _failure_reason = NULL;
1195 record_failure(reason);
1196 }
1197 }
1198
1199 // ------------------------------------------------------------------
1200 // ciEnv::record_out_of_memory_failure()
1201 void ciEnv::record_out_of_memory_failure() {
1202 // If memory is low, we stop compiling methods.
1203 record_method_not_compilable("out of memory");
1204 }
1205
1206 ciInstance* ciEnv::unloaded_ciinstance() {
1207 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1208 }
1209
1210 // ------------------------------------------------------------------
1211 // ciEnv::dump_replay_data*
1212
1213 // Don't change thread state and acquire any locks.
1214 // Safe to call from VM error reporter.
1215
1216 void ciEnv::dump_compile_data(outputStream* out) {
1217 CompileTask* task = this->task();
1218 if (task) {
1219 Method* method = task->method();
1220 int entry_bci = task->osr_bci();
1221 int comp_level = task->comp_level();
1222 out->print("compile %s %s %s %d %d",
1223 method->klass_name()->as_quoted_ascii(),
1224 method->name()->as_quoted_ascii(),
1225 method->signature()->as_quoted_ascii(),
1226 entry_bci, comp_level);
1227 if (compiler_data() != NULL) {
1228 if (is_c2_compile(comp_level)) {
1229 #ifdef COMPILER2
1230 // Dump C2 inlining data.
1231 ((Compile*)compiler_data())->dump_inline_data(out);
1232 #endif
1233 } else if (is_c1_compile(comp_level)) {
1234 #ifdef COMPILER1
1235 // Dump C1 inlining data.
1236 ((Compilation*)compiler_data())->dump_inline_data(out);
1237 #endif
1238 }
1239 }
1240 out->cr();
1241 }
1242 }
1243
1244 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1245 ResourceMark rm;
1246 #if INCLUDE_JVMTI
1247 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1248 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1249 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1250 #endif // INCLUDE_JVMTI
1251
1252 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1253 out->print_cr("# %d ciObject found", objects->length());
1254 for (int i = 0; i < objects->length(); i++) {
1255 objects->at(i)->dump_replay_data(out);
1256 }
1257 dump_compile_data(out);
1258 out->flush();
1259 }
1260
1261 void ciEnv::dump_replay_data(outputStream* out) {
1262 GUARDED_VM_ENTRY(
1263 MutexLocker ml(Compile_lock);
1264 dump_replay_data_unsafe(out);
1265 )
1266 }
1267
1268 void ciEnv::dump_replay_data(int compile_id) {
1269 static char buffer[O_BUFLEN];
1270 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1271 if (ret > 0) {
1272 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1273 if (fd != -1) {
1274 FILE* replay_data_file = os::open(fd, "w");
1275 if (replay_data_file != NULL) {
1276 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1277 dump_replay_data(&replay_data_stream);
1278 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1279 } else {
1280 tty->print_cr("# Can't open file to dump replay data.");
1281 }
1282 }
1283 }
1284 }
1285
1286 void ciEnv::dump_inline_data(int compile_id) {
1287 static char buffer[O_BUFLEN];
1288 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1289 if (ret > 0) {
1290 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1291 if (fd != -1) {
1292 FILE* inline_data_file = os::open(fd, "w");
1293 if (inline_data_file != NULL) {
1294 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1295 GUARDED_VM_ENTRY(
1296 MutexLocker ml(Compile_lock);
1297 dump_compile_data(&replay_data_stream);
1298 )
1299 replay_data_stream.flush();
1300 tty->print("# Compiler inline data is saved as: ");
1301 tty->print_cr("%s", buffer);
1302 } else {
1303 tty->print_cr("# Can't open file to dump inline data.");
1304 }
1305 }
1306 }
1307 }