1 /*
2 * Copyright (c) 1999, 2015, 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 "ci/ciConstant.hpp"
27 #include "ci/ciEnv.hpp"
28 #include "ci/ciField.hpp"
29 #include "ci/ciInstance.hpp"
30 #include "ci/ciInstanceKlass.hpp"
31 #include "ci/ciMethod.hpp"
32 #include "ci/ciNullObject.hpp"
33 #include "ci/ciReplay.hpp"
34 #include "ci/ciUtilities.hpp"
35 #include "classfile/systemDictionary.hpp"
36 #include "classfile/vmSymbols.hpp"
37 #include "code/codeCache.hpp"
38 #include "code/scopeDesc.hpp"
39 #include "compiler/compileBroker.hpp"
40 #include "compiler/compileLog.hpp"
41 #include "compiler/compilerDirectives.hpp"
42 #include "gc/shared/collectedHeap.inline.hpp"
43 #include "interpreter/linkResolver.hpp"
44 #include "memory/allocation.inline.hpp"
45 #include "memory/oopFactory.hpp"
46 #include "memory/universe.inline.hpp"
47 #include "oops/methodData.hpp"
48 #include "oops/objArrayKlass.hpp"
49 #include "oops/objArrayOop.inline.hpp"
50 #include "oops/oop.inline.hpp"
51 #include "prims/jvmtiExport.hpp"
52 #include "runtime/init.hpp"
53 #include "runtime/reflection.hpp"
54 #include "runtime/sharedRuntime.hpp"
55 #include "runtime/thread.inline.hpp"
56 #include "trace/tracing.hpp"
57 #include "utilities/dtrace.hpp"
58 #include "utilities/macros.hpp"
59 #ifdef COMPILER1
60 #include "c1/c1_Runtime1.hpp"
61 #endif
62 #ifdef COMPILER2
63 #include "opto/runtime.hpp"
64 #endif
65
66 // ciEnv
67 //
68 // This class is the top level broker for requests from the compiler
69 // to the VM.
70
71 ciObject* ciEnv::_null_object_instance;
72
73 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL;
74 WK_KLASSES_DO(WK_KLASS_DEFN)
75 #undef WK_KLASS_DEFN
76
77 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
78 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
79 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
80
81 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
82 jobject ciEnv::_ArrayStoreException_handle = NULL;
83 jobject ciEnv::_ClassCastException_handle = NULL;
84
85 #ifndef PRODUCT
86 static bool firstEnv = true;
87 #endif /* PRODUCT */
88
89 // ------------------------------------------------------------------
90 // ciEnv::ciEnv
91 ciEnv::ciEnv(CompileTask* task, DirectiveSet* directive_set, int system_dictionary_modification_counter)
92 : _ciEnv_arena(mtCompiler) {
93 VM_ENTRY_MARK;
94
95 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
96 thread->set_env(this);
97 assert(ciEnv::current() == this, "sanity");
98
99 _oop_recorder = NULL;
100 _debug_info = NULL;
101 _dependencies = NULL;
102 _failure_reason = NULL;
103 _compilable = MethodCompilable;
104 _compiler_data = NULL;
105 #ifndef PRODUCT
106 assert(!firstEnv, "not initialized properly");
107 #endif /* !PRODUCT */
108
109 _system_dictionary_modification_counter = system_dictionary_modification_counter;
110 _num_inlined_bytecodes = 0;
111 assert(task == NULL || thread->task() == task, "sanity");
112 _task = task;
113 assert(directive_set != NULL, "Must always supply a directive");
114 _directive_set = directive_set;
115 _log = NULL;
116
117 // Temporary buffer for creating symbols and such.
118 _name_buffer = NULL;
119 _name_buffer_len = 0;
120
121 _arena = &_ciEnv_arena;
122 _factory = new (_arena) ciObjectFactory(_arena, 128);
123
124 // Preload commonly referenced system ciObjects.
125
126 // During VM initialization, these instances have not yet been created.
127 // Assertions ensure that these instances are not accessed before
128 // their initialization.
129
130 assert(Universe::is_fully_initialized(), "should be complete");
131
132 oop o = Universe::null_ptr_exception_instance();
133 assert(o != NULL, "should have been initialized");
134 _NullPointerException_instance = get_object(o)->as_instance();
135 o = Universe::arithmetic_exception_instance();
136 assert(o != NULL, "should have been initialized");
137 _ArithmeticException_instance = get_object(o)->as_instance();
138
139 _ArrayIndexOutOfBoundsException_instance = NULL;
140 _ArrayStoreException_instance = NULL;
141 _ClassCastException_instance = NULL;
142 _the_null_string = NULL;
143 _the_min_jint_string = NULL;
144
145 _jvmti_can_hotswap_or_post_breakpoint = false;
146 _jvmti_can_access_local_variables = false;
147 _jvmti_can_post_on_exceptions = false;
148 _jvmti_can_pop_frame = false;
149 }
150
151 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
152 ASSERT_IN_VM;
153
154 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
155 CompilerThread* current_thread = CompilerThread::current();
156 assert(current_thread->env() == NULL, "must be");
157 current_thread->set_env(this);
158 assert(ciEnv::current() == this, "sanity");
159
160 _oop_recorder = NULL;
161 _debug_info = NULL;
162 _dependencies = NULL;
163 _failure_reason = NULL;
164 _compilable = MethodCompilable_never;
165 _compiler_data = NULL;
166 _directive_set = NULL;
167 #ifndef PRODUCT
168 assert(firstEnv, "must be first");
169 firstEnv = false;
170 #endif /* !PRODUCT */
171
172 _system_dictionary_modification_counter = 0;
173 _num_inlined_bytecodes = 0;
174 _task = NULL;
175 _log = NULL;
176
177 // Temporary buffer for creating symbols and such.
178 _name_buffer = NULL;
179 _name_buffer_len = 0;
180
181 _arena = arena;
182 _factory = new (_arena) ciObjectFactory(_arena, 128);
183
184 // Preload commonly referenced system ciObjects.
185
186 // During VM initialization, these instances have not yet been created.
187 // Assertions ensure that these instances are not accessed before
188 // their initialization.
189
190 assert(Universe::is_fully_initialized(), "must be");
191
192 _NullPointerException_instance = NULL;
193 _ArithmeticException_instance = NULL;
194 _ArrayIndexOutOfBoundsException_instance = NULL;
195 _ArrayStoreException_instance = NULL;
196 _ClassCastException_instance = NULL;
197 _the_null_string = NULL;
198 _the_min_jint_string = NULL;
199
200 _jvmti_can_hotswap_or_post_breakpoint = false;
201 _jvmti_can_access_local_variables = false;
202 _jvmti_can_post_on_exceptions = false;
203 _jvmti_can_pop_frame = false;
204 }
205
206 ciEnv::~ciEnv() {
207 CompilerThread* current_thread = CompilerThread::current();
208 {
209 MutexLockerEx locker(DirectivesStack_lock, Mutex::_no_safepoint_check_flag);
210 if (_directive_set != NULL){ // May be null during init
211 if (_directive_set->is_exclusive_copy()) {
212 // Old CompilecCmmands forced us to create an exclusive copy
213 delete _directive_set;
214 } else {
215 _directive_set->directive()->dec_refcount();
216 }
217 }
218 }
219 _factory->remove_symbols();
220 // Need safepoint to clear the env on the thread. RedefineClasses might
221 // be reading it.
222 GUARDED_VM_ENTRY(current_thread->set_env(NULL);)
223 }
224
225 // ------------------------------------------------------------------
226 // Cache Jvmti state
227 void ciEnv::cache_jvmti_state() {
228 VM_ENTRY_MARK;
229 // Get Jvmti capabilities under lock to get consistant values.
230 MutexLocker mu(JvmtiThreadState_lock);
231 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
232 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
233 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
234 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
235 }
236
237 bool ciEnv::should_retain_local_variables() const {
238 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame;
239 }
240
241 bool ciEnv::jvmti_state_changed() const {
242 if (!_jvmti_can_access_local_variables &&
243 JvmtiExport::can_access_local_variables()) {
244 return true;
245 }
246 if (!_jvmti_can_hotswap_or_post_breakpoint &&
247 JvmtiExport::can_hotswap_or_post_breakpoint()) {
248 return true;
249 }
250 if (!_jvmti_can_post_on_exceptions &&
251 JvmtiExport::can_post_on_exceptions()) {
252 return true;
253 }
254 if (!_jvmti_can_pop_frame &&
255 JvmtiExport::can_pop_frame()) {
256 return true;
257 }
258 return false;
259 }
260
261 // ------------------------------------------------------------------
262 // Cache DTrace flags
263 void ciEnv::cache_dtrace_flags() {
264 // Need lock?
265 _dtrace_extended_probes = ExtendedDTraceProbes;
266 if (_dtrace_extended_probes) {
267 _dtrace_monitor_probes = true;
268 _dtrace_method_probes = true;
269 _dtrace_alloc_probes = true;
270 } else {
271 _dtrace_monitor_probes = DTraceMonitorProbes;
272 _dtrace_method_probes = DTraceMethodProbes;
273 _dtrace_alloc_probes = DTraceAllocProbes;
274 }
275 }
276
277 // ------------------------------------------------------------------
278 // helper for lazy exception creation
279 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
280 VM_ENTRY_MARK;
281 if (handle == NULL) {
282 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
283 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
284 jobject objh = NULL;
285 if (!HAS_PENDING_EXCEPTION && k != NULL) {
286 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
287 if (!HAS_PENDING_EXCEPTION)
288 objh = JNIHandles::make_global(obj);
289 }
290 if (HAS_PENDING_EXCEPTION) {
291 CLEAR_PENDING_EXCEPTION;
292 } else {
293 handle = objh;
294 }
295 }
296 oop obj = JNIHandles::resolve(handle);
297 return obj == NULL? NULL: get_object(obj)->as_instance();
298 }
299
300 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
301 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
302 _ArrayIndexOutOfBoundsException_instance
303 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
304 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
305 }
306 return _ArrayIndexOutOfBoundsException_instance;
307 }
308 ciInstance* ciEnv::ArrayStoreException_instance() {
309 if (_ArrayStoreException_instance == NULL) {
310 _ArrayStoreException_instance
311 = get_or_create_exception(_ArrayStoreException_handle,
312 vmSymbols::java_lang_ArrayStoreException());
313 }
314 return _ArrayStoreException_instance;
315 }
316 ciInstance* ciEnv::ClassCastException_instance() {
317 if (_ClassCastException_instance == NULL) {
318 _ClassCastException_instance
319 = get_or_create_exception(_ClassCastException_handle,
320 vmSymbols::java_lang_ClassCastException());
321 }
322 return _ClassCastException_instance;
323 }
324
325 ciInstance* ciEnv::the_null_string() {
326 if (_the_null_string == NULL) {
327 VM_ENTRY_MARK;
328 _the_null_string = get_object(Universe::the_null_string())->as_instance();
329 }
330 return _the_null_string;
331 }
332
333 ciInstance* ciEnv::the_min_jint_string() {
334 if (_the_min_jint_string == NULL) {
335 VM_ENTRY_MARK;
336 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
337 }
338 return _the_min_jint_string;
339 }
340
341 // ------------------------------------------------------------------
342 // ciEnv::get_method_from_handle
343 ciMethod* ciEnv::get_method_from_handle(Method* method) {
344 VM_ENTRY_MARK;
345 return get_metadata(method)->as_method();
346 }
347
348 // ------------------------------------------------------------------
349 // ciEnv::array_element_offset_in_bytes
350 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
351 VM_ENTRY_MARK;
352 objArrayOop a = (objArrayOop)a_h->get_oop();
353 assert(a->is_objArray(), "");
354 int length = a->length();
355 oop o = o_h->get_oop();
356 for (int i = 0; i < length; i++) {
357 if (a->obj_at(i) == o) return i;
358 }
359 return -1;
360 }
361
362
363 // ------------------------------------------------------------------
364 // ciEnv::check_klass_accessiblity
365 //
366 // Note: the logic of this method should mirror the logic of
367 // ConstantPool::verify_constant_pool_resolve.
368 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
369 Klass* resolved_klass) {
370 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
371 return true;
372 }
373 if (accessing_klass->is_obj_array_klass()) {
374 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
375 }
376 if (!accessing_klass->is_instance_klass()) {
377 return true;
378 }
379
380 if (resolved_klass->oop_is_objArray()) {
381 // Find the element klass, if this is an array.
382 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
383 }
384 if (resolved_klass->oop_is_instance()) {
385 return Reflection::verify_class_access(accessing_klass->get_Klass(),
386 resolved_klass,
387 true);
388 }
389 return true;
390 }
391
392 // ------------------------------------------------------------------
393 // ciEnv::get_klass_by_name_impl
394 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
395 constantPoolHandle cpool,
396 ciSymbol* name,
397 bool require_local) {
398 ASSERT_IN_VM;
399 EXCEPTION_CONTEXT;
400
401 // Now we need to check the SystemDictionary
402 Symbol* sym = name->get_symbol();
403 if (sym->byte_at(0) == 'L' &&
404 sym->byte_at(sym->utf8_length()-1) == ';') {
405 // This is a name from a signature. Strip off the trimmings.
406 // Call recursive to keep scope of strippedsym.
407 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
408 sym->utf8_length()-2,
409 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass));
410 ciSymbol* strippedname = get_symbol(strippedsym);
411 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
412 }
413
414 // Check for prior unloaded klass. The SystemDictionary's answers
415 // can vary over time but the compiler needs consistency.
416 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
417 if (unloaded_klass != NULL) {
418 if (require_local) return NULL;
419 return unloaded_klass;
420 }
421
422 Handle loader(THREAD, (oop)NULL);
423 Handle domain(THREAD, (oop)NULL);
424 if (accessing_klass != NULL) {
425 loader = Handle(THREAD, accessing_klass->loader());
426 domain = Handle(THREAD, accessing_klass->protection_domain());
427 }
428
429 // setup up the proper type to return on OOM
430 ciKlass* fail_type;
431 if (sym->byte_at(0) == '[') {
432 fail_type = _unloaded_ciobjarrayklass;
433 } else {
434 fail_type = _unloaded_ciinstance_klass;
435 }
436 KlassHandle found_klass;
437 {
438 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
439 MutexLocker ml(Compile_lock);
440 Klass* kls;
441 if (!require_local) {
442 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
443 KILL_COMPILE_ON_FATAL_(fail_type));
444 } else {
445 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
446 KILL_COMPILE_ON_FATAL_(fail_type));
447 }
448 found_klass = KlassHandle(THREAD, kls);
449 }
450
451 // If we fail to find an array klass, look again for its element type.
452 // The element type may be available either locally or via constraints.
453 // In either case, if we can find the element type in the system dictionary,
454 // we must build an array type around it. The CI requires array klasses
455 // to be loaded if their element klasses are loaded, except when memory
456 // is exhausted.
457 if (sym->byte_at(0) == '[' &&
458 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) {
459 // We have an unloaded array.
460 // Build it on the fly if the element class exists.
461 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1,
462 sym->utf8_length()-1,
463 KILL_COMPILE_ON_FATAL_(fail_type));
464
465 // Get element ciKlass recursively.
466 ciKlass* elem_klass =
467 get_klass_by_name_impl(accessing_klass,
468 cpool,
469 get_symbol(elem_sym),
470 require_local);
471 if (elem_klass != NULL && elem_klass->is_loaded()) {
472 // Now make an array for it
473 return ciObjArrayKlass::make_impl(elem_klass);
474 }
475 }
476
477 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) {
478 // Look inside the constant pool for pre-resolved class entries.
479 for (int i = cpool->length() - 1; i >= 1; i--) {
480 if (cpool->tag_at(i).is_klass()) {
481 Klass* kls = cpool->resolved_klass_at(i);
482 if (kls->name() == sym) {
483 found_klass = KlassHandle(THREAD, kls);
484 break;
485 }
486 }
487 }
488 }
489
490 if (found_klass() != NULL) {
491 // Found it. Build a CI handle.
492 return get_klass(found_klass());
493 }
494
495 if (require_local) return NULL;
496
497 // Not yet loaded into the VM, or not governed by loader constraints.
498 // Make a CI representative for it.
499 return get_unloaded_klass(accessing_klass, name);
500 }
501
502 // ------------------------------------------------------------------
503 // ciEnv::get_klass_by_name
504 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
505 ciSymbol* klass_name,
506 bool require_local) {
507 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
508 constantPoolHandle(),
509 klass_name,
510 require_local);)
511 }
512
513 // ------------------------------------------------------------------
514 // ciEnv::get_klass_by_index_impl
515 //
516 // Implementation of get_klass_by_index.
517 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool,
518 int index,
519 bool& is_accessible,
520 ciInstanceKlass* accessor) {
521 EXCEPTION_CONTEXT;
522 KlassHandle klass; // = NULL;
523 Symbol* klass_name = NULL;
524
525 if (cpool->tag_at(index).is_symbol()) {
526 klass_name = cpool->symbol_at(index);
527 } else {
528 // Check if it's resolved if it's not a symbol constant pool entry.
529 klass = KlassHandle(THREAD, ConstantPool::klass_at_if_loaded(cpool, index));
530 // Try to look it up by name.
531 if (klass.is_null()) {
532 klass_name = cpool->klass_name_at(index);
533 }
534 }
535
536 if (klass.is_null()) {
537 // Not found in constant pool. Use the name to do the lookup.
538 ciKlass* k = get_klass_by_name_impl(accessor,
539 cpool,
540 get_symbol(klass_name),
541 false);
542 // Calculate accessibility the hard way.
543 if (!k->is_loaded()) {
544 is_accessible = false;
545 } else if (k->loader() != accessor->loader() &&
546 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
547 // Loaded only remotely. Not linked yet.
548 is_accessible = false;
549 } else {
550 // Linked locally, and we must also check public/private, etc.
551 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
552 }
553 return k;
554 }
555
556 // Check for prior unloaded klass. The SystemDictionary's answers
557 // can vary over time but the compiler needs consistency.
558 ciSymbol* name = get_symbol(klass()->name());
559 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
560 if (unloaded_klass != NULL) {
561 is_accessible = false;
562 return unloaded_klass;
563 }
564
565 // It is known to be accessible, since it was found in the constant pool.
566 is_accessible = true;
567 return get_klass(klass());
568 }
569
570 // ------------------------------------------------------------------
571 // ciEnv::get_klass_by_index
572 //
573 // Get a klass from the constant pool.
574 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool,
575 int index,
576 bool& is_accessible,
577 ciInstanceKlass* accessor) {
578 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
579 }
580
581 // ------------------------------------------------------------------
582 // ciEnv::get_constant_by_index_impl
583 //
584 // Implementation of get_constant_by_index().
585 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool,
586 int pool_index, int cache_index,
587 ciInstanceKlass* accessor) {
588 bool ignore_will_link;
589 EXCEPTION_CONTEXT;
590 int index = pool_index;
591 if (cache_index >= 0) {
592 assert(index < 0, "only one kind of index at a time");
593 oop obj = cpool->resolved_references()->obj_at(cache_index);
594 if (obj != NULL) {
595 ciObject* ciobj = get_object(obj);
596 if (ciobj->is_array()) {
597 return ciConstant(T_ARRAY, ciobj);
598 } else {
599 assert(ciobj->is_instance(), "should be an instance");
600 return ciConstant(T_OBJECT, ciobj);
601 }
602 }
603 index = cpool->object_to_cp_index(cache_index);
604 }
605 constantTag tag = cpool->tag_at(index);
606 if (tag.is_int()) {
607 return ciConstant(T_INT, (jint)cpool->int_at(index));
608 } else if (tag.is_long()) {
609 return ciConstant((jlong)cpool->long_at(index));
610 } else if (tag.is_float()) {
611 return ciConstant((jfloat)cpool->float_at(index));
612 } else if (tag.is_double()) {
613 return ciConstant((jdouble)cpool->double_at(index));
614 } else if (tag.is_string()) {
615 oop string = NULL;
616 assert(cache_index >= 0, "should have a cache index");
617 if (cpool->is_pseudo_string_at(index)) {
618 string = cpool->pseudo_string_at(index, cache_index);
619 } else {
620 string = cpool->string_at(index, cache_index, THREAD);
621 if (HAS_PENDING_EXCEPTION) {
622 CLEAR_PENDING_EXCEPTION;
623 record_out_of_memory_failure();
624 return ciConstant();
625 }
626 }
627 ciObject* constant = get_object(string);
628 if (constant->is_array()) {
629 return ciConstant(T_ARRAY, constant);
630 } else {
631 assert (constant->is_instance(), "must be an instance, or not? ");
632 return ciConstant(T_OBJECT, constant);
633 }
634 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
635 // 4881222: allow ldc to take a class type
636 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
637 if (HAS_PENDING_EXCEPTION) {
638 CLEAR_PENDING_EXCEPTION;
639 record_out_of_memory_failure();
640 return ciConstant();
641 }
642 assert (klass->is_instance_klass() || klass->is_array_klass(),
643 "must be an instance or array klass ");
644 return ciConstant(T_OBJECT, klass->java_mirror());
645 } else if (tag.is_method_type()) {
646 // must execute Java code to link this CP entry into cache[i].f1
647 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
648 ciObject* ciobj = get_unloaded_method_type_constant(signature);
649 return ciConstant(T_OBJECT, ciobj);
650 } else if (tag.is_method_handle()) {
651 // must execute Java code to link this CP entry into cache[i].f1
652 int ref_kind = cpool->method_handle_ref_kind_at(index);
653 int callee_index = cpool->method_handle_klass_index_at(index);
654 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
655 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
656 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
657 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
658 return ciConstant(T_OBJECT, ciobj);
659 } else {
660 ShouldNotReachHere();
661 return ciConstant();
662 }
663 }
664
665 // ------------------------------------------------------------------
666 // ciEnv::get_constant_by_index
667 //
668 // Pull a constant out of the constant pool. How appropriate.
669 //
670 // Implementation note: this query is currently in no way cached.
671 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool,
672 int pool_index, int cache_index,
673 ciInstanceKlass* accessor) {
674 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
675 }
676
677 // ------------------------------------------------------------------
678 // ciEnv::get_field_by_index_impl
679 //
680 // Implementation of get_field_by_index.
681 //
682 // Implementation note: the results of field lookups are cached
683 // in the accessor klass.
684 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
685 int index) {
686 ciConstantPoolCache* cache = accessor->field_cache();
687 if (cache == NULL) {
688 ciField* field = new (arena()) ciField(accessor, index);
689 return field;
690 } else {
691 ciField* field = (ciField*)cache->get(index);
692 if (field == NULL) {
693 field = new (arena()) ciField(accessor, index);
694 cache->insert(index, field);
695 }
696 return field;
697 }
698 }
699
700 // ------------------------------------------------------------------
701 // ciEnv::get_field_by_index
702 //
703 // Get a field by index from a klass's constant pool.
704 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
705 int index) {
706 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
707 }
708
709 // ------------------------------------------------------------------
710 // ciEnv::lookup_method
711 //
712 // Perform an appropriate method lookup based on accessor, holder,
713 // name, signature, and bytecode.
714 Method* ciEnv::lookup_method(InstanceKlass* accessor,
715 InstanceKlass* holder,
716 Symbol* name,
717 Symbol* sig,
718 Bytecodes::Code bc) {
719 EXCEPTION_CONTEXT;
720 KlassHandle h_accessor(THREAD, accessor);
721 KlassHandle h_holder(THREAD, holder);
722 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL));
723 methodHandle dest_method;
724 LinkInfo link_info(h_holder, name, sig, h_accessor, /*check_access*/true);
725 switch (bc) {
726 case Bytecodes::_invokestatic:
727 dest_method =
728 LinkResolver::resolve_static_call_or_null(link_info);
729 break;
730 case Bytecodes::_invokespecial:
731 dest_method =
732 LinkResolver::resolve_special_call_or_null(link_info);
733 break;
734 case Bytecodes::_invokeinterface:
735 dest_method =
736 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
737 break;
738 case Bytecodes::_invokevirtual:
739 dest_method =
740 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
741 break;
742 default: ShouldNotReachHere();
743 }
744
745 return dest_method();
746 }
747
748
749 // ------------------------------------------------------------------
750 // ciEnv::get_method_by_index_impl
751 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool,
752 int index, Bytecodes::Code bc,
753 ciInstanceKlass* accessor) {
754 if (bc == Bytecodes::_invokedynamic) {
755 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
756 bool is_resolved = !cpce->is_f1_null();
757 // FIXME: code generation could allow for null (unlinked) call site
758 // The call site could be made patchable as follows:
759 // Load the appendix argument from the constant pool.
760 // Test the appendix argument and jump to a known deopt routine if it is null.
761 // Jump through a patchable call site, which is initially a deopt routine.
762 // Patch the call site to the nmethod entry point of the static compiled lambda form.
763 // As with other two-component call sites, both values must be independently verified.
764
765 if (is_resolved) {
766 // Get the invoker Method* from the constant pool.
767 // (The appendix argument, if any, will be noted in the method's signature.)
768 Method* adapter = cpce->f1_as_method();
769 return get_method(adapter);
770 }
771
772 // Fake a method that is equivalent to a declared method.
773 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
774 ciSymbol* name = ciSymbol::invokeBasic_name();
775 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
776 return get_unloaded_method(holder, name, signature, accessor);
777 } else {
778 const int holder_index = cpool->klass_ref_index_at(index);
779 bool holder_is_accessible;
780 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
781 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder);
782
783 // Get the method's name and signature.
784 Symbol* name_sym = cpool->name_ref_at(index);
785 Symbol* sig_sym = cpool->signature_ref_at(index);
786
787 if (cpool->has_preresolution()
788 || (holder == ciEnv::MethodHandle_klass() &&
789 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
790 // Short-circuit lookups for JSR 292-related call sites.
791 // That is, do not rely only on name-based lookups, because they may fail
792 // if the names are not resolvable in the boot class loader (7056328).
793 switch (bc) {
794 case Bytecodes::_invokevirtual:
795 case Bytecodes::_invokeinterface:
796 case Bytecodes::_invokespecial:
797 case Bytecodes::_invokestatic:
798 {
799 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
800 if (m != NULL) {
801 return get_method(m);
802 }
803 }
804 break;
805 }
806 }
807
808 if (holder_is_accessible) { // Our declared holder is loaded.
809 InstanceKlass* lookup = declared_holder->get_instanceKlass();
810 Method* m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc);
811 if (m != NULL &&
812 (bc == Bytecodes::_invokestatic
813 ? m->method_holder()->is_not_initialized()
814 : !m->method_holder()->is_loaded())) {
815 m = NULL;
816 }
817 #ifdef ASSERT
818 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
819 m = NULL;
820 }
821 #endif
822 if (m != NULL) {
823 // We found the method.
824 return get_method(m);
825 }
826 }
827
828 // Either the declared holder was not loaded, or the method could
829 // not be found. Create a dummy ciMethod to represent the failed
830 // lookup.
831 ciSymbol* name = get_symbol(name_sym);
832 ciSymbol* signature = get_symbol(sig_sym);
833 return get_unloaded_method(declared_holder, name, signature, accessor);
834 }
835 }
836
837
838 // ------------------------------------------------------------------
839 // ciEnv::get_instance_klass_for_declared_method_holder
840 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
841 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
842 // instead of a ciInstanceKlass. For that case simply pretend that the
843 // declared holder is Object.clone since that's where the call will bottom out.
844 // A more correct fix would trickle out through many interfaces in CI,
845 // requiring ciInstanceKlass* to become ciKlass* and many more places would
846 // require checks to make sure the expected type was found. Given that this
847 // only occurs for clone() the more extensive fix seems like overkill so
848 // instead we simply smear the array type into Object.
849 guarantee(method_holder != NULL, "no method holder");
850 if (method_holder->is_instance_klass()) {
851 return method_holder->as_instance_klass();
852 } else if (method_holder->is_array_klass()) {
853 return current()->Object_klass();
854 } else {
855 ShouldNotReachHere();
856 }
857 return NULL;
858 }
859
860
861 // ------------------------------------------------------------------
862 // ciEnv::get_method_by_index
863 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool,
864 int index, Bytecodes::Code bc,
865 ciInstanceKlass* accessor) {
866 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
867 }
868
869
870 // ------------------------------------------------------------------
871 // ciEnv::name_buffer
872 char *ciEnv::name_buffer(int req_len) {
873 if (_name_buffer_len < req_len) {
874 if (_name_buffer == NULL) {
875 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
876 _name_buffer_len = req_len;
877 } else {
878 _name_buffer =
879 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
880 _name_buffer_len = req_len;
881 }
882 }
883 return _name_buffer;
884 }
885
886 // ------------------------------------------------------------------
887 // ciEnv::is_in_vm
888 bool ciEnv::is_in_vm() {
889 return JavaThread::current()->thread_state() == _thread_in_vm;
890 }
891
892 bool ciEnv::system_dictionary_modification_counter_changed() {
893 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
894 }
895
896 // ------------------------------------------------------------------
897 // ciEnv::validate_compile_task_dependencies
898 //
899 // Check for changes during compilation (e.g. class loads, evolution,
900 // breakpoints, call site invalidation).
901 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
902 if (failing()) return; // no need for further checks
903
904 // First, check non-klass dependencies as we might return early and
905 // not check klass dependencies if the system dictionary
906 // modification counter hasn't changed (see below).
907 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
908 if (deps.is_klass_type()) continue; // skip klass dependencies
909 Klass* witness = deps.check_dependency();
910 if (witness != NULL) {
911 record_failure("invalid non-klass dependency");
912 return;
913 }
914 }
915
916 // Klass dependencies must be checked when the system dictionary
917 // changes. If logging is enabled all violated dependences will be
918 // recorded in the log. In debug mode check dependencies even if
919 // the system dictionary hasn't changed to verify that no invalid
920 // dependencies were inserted. Any violated dependences in this
921 // case are dumped to the tty.
922 bool counter_changed = system_dictionary_modification_counter_changed();
923
924 bool verify_deps = trueInDebug;
925 if (!counter_changed && !verify_deps) return;
926
927 int klass_violations = 0;
928 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
929 if (!deps.is_klass_type()) continue; // skip non-klass dependencies
930 Klass* witness = deps.check_dependency();
931 if (witness != NULL) {
932 klass_violations++;
933 if (!counter_changed) {
934 // Dependence failed but counter didn't change. Log a message
935 // describing what failed and allow the assert at the end to
936 // trigger.
937 deps.print_dependency(witness);
938 } else if (xtty == NULL) {
939 // If we're not logging then a single violation is sufficient,
940 // otherwise we want to log all the dependences which were
941 // violated.
942 break;
943 }
944 }
945 }
946
947 if (klass_violations != 0) {
948 #ifdef ASSERT
949 if (!counter_changed && !PrintCompilation) {
950 // Print out the compile task that failed
951 _task->print_tty();
952 }
953 #endif
954 assert(counter_changed, "failed dependencies, but counter didn't change");
955 record_failure("concurrent class loading");
956 }
957 }
958
959 // ------------------------------------------------------------------
960 // ciEnv::register_method
961 void ciEnv::register_method(ciMethod* target,
962 int entry_bci,
963 CodeOffsets* offsets,
964 int orig_pc_offset,
965 CodeBuffer* code_buffer,
966 int frame_words,
967 OopMapSet* oop_map_set,
968 ExceptionHandlerTable* handler_table,
969 ImplicitExceptionTable* inc_table,
970 AbstractCompiler* compiler,
971 int comp_level,
972 bool has_unsafe_access,
973 bool has_wide_vectors,
974 RTMState rtm_state) {
975 VM_ENTRY_MARK;
976 nmethod* nm = NULL;
977 {
978 // To prevent compile queue updates.
979 MutexLocker locker(MethodCompileQueue_lock, THREAD);
980
981 // Prevent SystemDictionary::add_to_hierarchy from running
982 // and invalidating our dependencies until we install this method.
983 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
984 MutexLocker ml(Compile_lock);
985 No_Safepoint_Verifier nsv;
986
987 // Change in Jvmti state may invalidate compilation.
988 if (!failing() && jvmti_state_changed()) {
989 record_failure("Jvmti state change invalidated dependencies");
990 }
991
992 // Change in DTrace flags may invalidate compilation.
993 if (!failing() &&
994 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
995 (!dtrace_method_probes() && DTraceMethodProbes) ||
996 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
997 record_failure("DTrace flags change invalidated dependencies");
998 }
999
1000 if (!failing()) {
1001 if (log() != NULL) {
1002 // Log the dependencies which this compilation declares.
1003 dependencies()->log_all_dependencies();
1004 }
1005
1006 // Encode the dependencies now, so we can check them right away.
1007 dependencies()->encode_content_bytes();
1008
1009 // Check for {class loads, evolution, breakpoints, ...} during compilation
1010 validate_compile_task_dependencies(target);
1011 }
1012
1013 methodHandle method(THREAD, target->get_Method());
1014
1015 #if INCLUDE_RTM_OPT
1016 if (!failing() && (rtm_state != NoRTM) &&
1017 (method()->method_data() != NULL) &&
1018 (method()->method_data()->rtm_state() != rtm_state)) {
1019 // Preemptive decompile if rtm state was changed.
1020 record_failure("RTM state change invalidated rtm code");
1021 }
1022 #endif
1023
1024 if (failing()) {
1025 // While not a true deoptimization, it is a preemptive decompile.
1026 MethodData* mdo = method()->method_data();
1027 if (mdo != NULL) {
1028 mdo->inc_decompile_count();
1029 }
1030
1031 // All buffers in the CodeBuffer are allocated in the CodeCache.
1032 // If the code buffer is created on each compile attempt
1033 // as in C2, then it must be freed.
1034 code_buffer->free_blob();
1035 return;
1036 }
1037
1038 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1039 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1040
1041 nm = nmethod::new_nmethod(method,
1042 compile_id(),
1043 entry_bci,
1044 offsets,
1045 orig_pc_offset,
1046 debug_info(), dependencies(), code_buffer,
1047 frame_words, oop_map_set,
1048 handler_table, inc_table,
1049 compiler, comp_level);
1050
1051 // Free codeBlobs
1052 code_buffer->free_blob();
1053
1054 if (nm != NULL) {
1055 bool printnmethods = dirset()->PrintAssemblyOption || dirset()->PrintNMethodsOption;
1056 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) {
1057 nm->print_nmethod(printnmethods);
1058 }
1059 if (dirset()->PrintAssemblyOption) {
1060 Disassembler::decode(nm);
1061 }
1062
1063 nm->set_has_unsafe_access(has_unsafe_access);
1064 nm->set_has_wide_vectors(has_wide_vectors);
1065 #if INCLUDE_RTM_OPT
1066 nm->set_rtm_state(rtm_state);
1067 #endif
1068
1069 // Record successful registration.
1070 // (Put nm into the task handle *before* publishing to the Java heap.)
1071 if (task() != NULL) {
1072 task()->set_code(nm);
1073 }
1074
1075 if (entry_bci == InvocationEntryBci) {
1076 if (TieredCompilation) {
1077 // If there is an old version we're done with it
1078 nmethod* old = method->code();
1079 if (TraceMethodReplacement && old != NULL) {
1080 ResourceMark rm;
1081 char *method_name = method->name_and_sig_as_C_string();
1082 tty->print_cr("Replacing method %s", method_name);
1083 }
1084 if (old != NULL) {
1085 old->make_not_entrant();
1086 }
1087 }
1088 if (TraceNMethodInstalls) {
1089 ResourceMark rm;
1090 char *method_name = method->name_and_sig_as_C_string();
1091 ttyLocker ttyl;
1092 tty->print_cr("Installing method (%d) %s ",
1093 comp_level,
1094 method_name);
1095 }
1096 // Allow the code to be executed
1097 method->set_code(method, nm);
1098 } else {
1099 if (TraceNMethodInstalls) {
1100 ResourceMark rm;
1101 char *method_name = method->name_and_sig_as_C_string();
1102 ttyLocker ttyl;
1103 tty->print_cr("Installing osr method (%d) %s @ %d",
1104 comp_level,
1105 method_name,
1106 entry_bci);
1107 }
1108 method->method_holder()->add_osr_nmethod(nm);
1109 }
1110 }
1111 } // safepoints are allowed again
1112
1113 if (nm != NULL) {
1114 // JVMTI -- compiled method notification (must be done outside lock)
1115 nm->post_compiled_method_load_event();
1116 } else {
1117 // The CodeCache is full.
1118 record_failure("code cache is full");
1119 }
1120 }
1121
1122
1123 // ------------------------------------------------------------------
1124 // ciEnv::find_system_klass
1125 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1126 VM_ENTRY_MARK;
1127 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1128 }
1129
1130 // ------------------------------------------------------------------
1131 // ciEnv::comp_level
1132 int ciEnv::comp_level() {
1133 if (task() == NULL) return CompLevel_highest_tier;
1134 return task()->comp_level();
1135 }
1136
1137 // ------------------------------------------------------------------
1138 // ciEnv::compile_id
1139 uint ciEnv::compile_id() {
1140 if (task() == NULL) return 0;
1141 return task()->compile_id();
1142 }
1143
1144 // ------------------------------------------------------------------
1145 // ciEnv::notice_inlined_method()
1146 void ciEnv::notice_inlined_method(ciMethod* method) {
1147 _num_inlined_bytecodes += method->code_size_for_inlining();
1148 }
1149
1150 // ------------------------------------------------------------------
1151 // ciEnv::num_inlined_bytecodes()
1152 int ciEnv::num_inlined_bytecodes() const {
1153 return _num_inlined_bytecodes;
1154 }
1155
1156 // ------------------------------------------------------------------
1157 // ciEnv::record_failure()
1158 void ciEnv::record_failure(const char* reason) {
1159 if (_failure_reason == NULL) {
1160 // Record the first failure reason.
1161 _failure_reason = reason;
1162 }
1163 }
1164
1165 void ciEnv::report_failure(const char* reason) {
1166 // Create and fire JFR event
1167 EventCompilerFailure event;
1168 if (event.should_commit()) {
1169 event.set_compileID(compile_id());
1170 event.set_failure(reason);
1171 event.commit();
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 Method* method = task->method();
1219 int entry_bci = task->osr_bci();
1220 int comp_level = task->comp_level();
1221 out->print("compile %s %s %s %d %d",
1222 method->klass_name()->as_quoted_ascii(),
1223 method->name()->as_quoted_ascii(),
1224 method->signature()->as_quoted_ascii(),
1225 entry_bci, comp_level);
1226 if (compiler_data() != NULL) {
1227 if (is_c2_compile(comp_level)) { // C2 or Shark
1228 #ifdef COMPILER2
1229 // Dump C2 inlining data.
1230 ((Compile*)compiler_data())->dump_inline_data(out);
1231 #endif
1232 } else if (is_c1_compile(comp_level)) { // C1
1233 #ifdef COMPILER1
1234 // Dump C1 inlining data.
1235 ((Compilation*)compiler_data())->dump_inline_data(out);
1236 #endif
1237 }
1238 }
1239 out->cr();
1240 }
1241
1242 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1243 ResourceMark rm;
1244 #if INCLUDE_JVMTI
1245 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1246 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1247 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1248 #endif // INCLUDE_JVMTI
1249
1250 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1251 out->print_cr("# %d ciObject found", objects->length());
1252 for (int i = 0; i < objects->length(); i++) {
1253 objects->at(i)->dump_replay_data(out);
1254 }
1255 dump_compile_data(out);
1256 out->flush();
1257 }
1258
1259 void ciEnv::dump_replay_data(outputStream* out) {
1260 GUARDED_VM_ENTRY(
1261 MutexLocker ml(Compile_lock);
1262 dump_replay_data_unsafe(out);
1263 )
1264 }
1265
1266 void ciEnv::dump_replay_data(int compile_id) {
1267 static char buffer[O_BUFLEN];
1268 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1269 if (ret > 0) {
1270 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1271 if (fd != -1) {
1272 FILE* replay_data_file = os::open(fd, "w");
1273 if (replay_data_file != NULL) {
1274 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1275 dump_replay_data(&replay_data_stream);
1276 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1277 } else {
1278 tty->print_cr("# Can't open file to dump replay data.");
1279 }
1280 }
1281 }
1282 }
1283
1284 void ciEnv::dump_inline_data(int compile_id) {
1285 static char buffer[O_BUFLEN];
1286 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1287 if (ret > 0) {
1288 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1289 if (fd != -1) {
1290 FILE* inline_data_file = os::open(fd, "w");
1291 if (inline_data_file != NULL) {
1292 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1293 GUARDED_VM_ENTRY(
1294 MutexLocker ml(Compile_lock);
1295 dump_compile_data(&replay_data_stream);
1296 )
1297 replay_data_stream.flush();
1298 tty->print("# Compiler inline data is saved as: ");
1299 tty->print_cr("%s", buffer);
1300 } else {
1301 tty->print_cr("# Can't open file to dump inline data.");
1302 }
1303 }
1304 }
1305 }