1/*
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#include "precompiled.hpp"
26#include "jvm.h"
27#include "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/compileLog.hpp"
43#include "compiler/disassembler.hpp"
44#include "gc/shared/collectedHeap.inline.hpp"
45#include "interpreter/linkResolver.hpp"
46#include "jfr/jfrEvents.hpp"
47#include "logging/log.hpp"
48#include "memory/allocation.inline.hpp"
49#include "memory/oopFactory.hpp"
50#include "memory/resourceArea.hpp"
51#include "memory/universe.hpp"
52#include "oops/constantPool.inline.hpp"
53#include "oops/cpCache.inline.hpp"
54#include "oops/method.inline.hpp"
55#include "oops/methodData.hpp"
56#include "oops/objArrayKlass.hpp"
57#include "oops/objArrayOop.inline.hpp"
58#include "oops/oop.inline.hpp"
59#include "prims/jvmtiExport.hpp"
60#include "runtime/handles.inline.hpp"
61#include "runtime/init.hpp"
62#include "runtime/reflection.hpp"
63#include "runtime/jniHandles.inline.hpp"
64#include "runtime/safepointVerifiers.hpp"
65#include "runtime/sharedRuntime.hpp"
66#include "runtime/thread.inline.hpp"
67#include "utilities/dtrace.hpp"
68#include "utilities/macros.hpp"
69#ifdef COMPILER1
70#include "c1/c1_Runtime1.hpp"
71#endif
72#ifdef COMPILER2
73#include "opto/runtime.hpp"
74#endif
75
76// ciEnv
77//
78// This class is the top level broker for requests from the compiler
79// to the VM.
80
81ciObject* ciEnv::_null_object_instance;
82
83#define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL;
84WK_KLASSES_DO(WK_KLASS_DEFN)
85#undef WK_KLASS_DEFN
86
87ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
88ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
89ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
90
91jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
92jobject ciEnv::_ArrayStoreException_handle = NULL;
93jobject ciEnv::_ClassCastException_handle = NULL;
94
95#ifndef PRODUCT
96static bool firstEnv = true;
97#endif /* PRODUCT */
98
99// ------------------------------------------------------------------
100// ciEnv::ciEnv
101ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
102 : _ciEnv_arena(mtCompiler) {
103 VM_ENTRY_MARK;
104
105 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
106 thread->set_env(this);
107 assert(ciEnv::current() == this, "sanity");
108
109 _oop_recorder = NULL;
110 _debug_info = NULL;
111 _dependencies = NULL;
112 _failure_reason = NULL;
113 _inc_decompile_count_on_failure = true;
114 _compilable = MethodCompilable;
115 _break_at_compile = false;
116 _compiler_data = NULL;
117#ifndef PRODUCT
118 assert(!firstEnv, "not initialized properly");
119#endif /* !PRODUCT */
120
121 _system_dictionary_modification_counter = system_dictionary_modification_counter;
122 _num_inlined_bytecodes = 0;
123 assert(task == NULL || thread->task() == task, "sanity");
124 if (task != NULL) {
125 task->mark_started(os::elapsed_counter());
126 }
127 _task = task;
128 _log = NULL;
129
130 // Temporary buffer for creating symbols and such.
131 _name_buffer = NULL;
132 _name_buffer_len = 0;
133
134 _arena = &_ciEnv_arena;
135 _factory = new (_arena) ciObjectFactory(_arena, 128);
136
137 // Preload commonly referenced system ciObjects.
138
139 // During VM initialization, these instances have not yet been created.
140 // Assertions ensure that these instances are not accessed before
141 // their initialization.
142
143 assert(Universe::is_fully_initialized(), "should be complete");
144
145 oop o = Universe::null_ptr_exception_instance();
146 assert(o != NULL, "should have been initialized");
147 _NullPointerException_instance = get_object(o)->as_instance();
148 o = Universe::arithmetic_exception_instance();
149 assert(o != NULL, "should have been initialized");
150 _ArithmeticException_instance = get_object(o)->as_instance();
151
152 _ArrayIndexOutOfBoundsException_instance = NULL;
153 _ArrayStoreException_instance = NULL;
154 _ClassCastException_instance = NULL;
155 _the_null_string = NULL;
156 _the_min_jint_string = NULL;
157
158 _jvmti_can_hotswap_or_post_breakpoint = false;
159 _jvmti_can_access_local_variables = false;
160 _jvmti_can_post_on_exceptions = false;
161 _jvmti_can_pop_frame = false;
162}
163
164ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
165 ASSERT_IN_VM;
166
167 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
168 CompilerThread* current_thread = CompilerThread::current();
169 assert(current_thread->env() == NULL, "must be");
170 current_thread->set_env(this);
171 assert(ciEnv::current() == this, "sanity");
172
173 _oop_recorder = NULL;
174 _debug_info = NULL;
175 _dependencies = NULL;
176 _failure_reason = NULL;
177 _inc_decompile_count_on_failure = true;
178 _compilable = MethodCompilable_never;
179 _break_at_compile = false;
180 _compiler_data = NULL;
181#ifndef PRODUCT
182 assert(firstEnv, "must be first");
183 firstEnv = false;
184#endif /* !PRODUCT */
185
186 _system_dictionary_modification_counter = 0;
187 _num_inlined_bytecodes = 0;
188 _task = NULL;
189 _log = NULL;
190
191 // Temporary buffer for creating symbols and such.
192 _name_buffer = NULL;
193 _name_buffer_len = 0;
194
195 _arena = arena;
196 _factory = new (_arena) ciObjectFactory(_arena, 128);
197
198 // Preload commonly referenced system ciObjects.
199
200 // During VM initialization, these instances have not yet been created.
201 // Assertions ensure that these instances are not accessed before
202 // their initialization.
203
204 assert(Universe::is_fully_initialized(), "must be");
205
206 _NullPointerException_instance = NULL;
207 _ArithmeticException_instance = NULL;
208 _ArrayIndexOutOfBoundsException_instance = NULL;
209 _ArrayStoreException_instance = NULL;
210 _ClassCastException_instance = NULL;
211 _the_null_string = NULL;
212 _the_min_jint_string = NULL;
213
214 _jvmti_can_hotswap_or_post_breakpoint = false;
215 _jvmti_can_access_local_variables = false;
216 _jvmti_can_post_on_exceptions = false;
217 _jvmti_can_pop_frame = false;
218}
219
220ciEnv::~ciEnv() {
221 GUARDED_VM_ENTRY(
222 CompilerThread* current_thread = CompilerThread::current();
223 _factory->remove_symbols();
224 // Need safepoint to clear the env on the thread. RedefineClasses might
225 // be reading it.
226 current_thread->set_env(NULL);
227 )
228}
229
230// ------------------------------------------------------------------
231// Cache Jvmti state
232void ciEnv::cache_jvmti_state() {
233 VM_ENTRY_MARK;
234 // Get Jvmti capabilities under lock to get consistant values.
235 MutexLocker mu(JvmtiThreadState_lock);
236 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
237 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
238 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
239 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
240}
241
242bool ciEnv::jvmti_state_changed() const {
243 if (!_jvmti_can_access_local_variables &&
244 JvmtiExport::can_access_local_variables()) {
245 return true;
246 }
247 if (!_jvmti_can_hotswap_or_post_breakpoint &&
248 JvmtiExport::can_hotswap_or_post_breakpoint()) {
249 return true;
250 }
251 if (!_jvmti_can_post_on_exceptions &&
252 JvmtiExport::can_post_on_exceptions()) {
253 return true;
254 }
255 if (!_jvmti_can_pop_frame &&
256 JvmtiExport::can_pop_frame()) {
257 return true;
258 }
259 return false;
260}
261
262// ------------------------------------------------------------------
263// Cache DTrace flags
264void ciEnv::cache_dtrace_flags() {
265 // Need lock?
266 _dtrace_extended_probes = ExtendedDTraceProbes;
267 if (_dtrace_extended_probes) {
268 _dtrace_monitor_probes = true;
269 _dtrace_method_probes = true;
270 _dtrace_alloc_probes = true;
271 } else {
272 _dtrace_monitor_probes = DTraceMonitorProbes;
273 _dtrace_method_probes = DTraceMethodProbes;
274 _dtrace_alloc_probes = DTraceAllocProbes;
275 }
276}
277
278// ------------------------------------------------------------------
279// helper for lazy exception creation
280ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
281 VM_ENTRY_MARK;
282 if (handle == NULL) {
283 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
284 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
285 jobject objh = NULL;
286 if (!HAS_PENDING_EXCEPTION && k != NULL) {
287 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
288 if (!HAS_PENDING_EXCEPTION)
289 objh = JNIHandles::make_global(Handle(THREAD, obj));
290 }
291 if (HAS_PENDING_EXCEPTION) {
292 CLEAR_PENDING_EXCEPTION;
293 } else {
294 handle = objh;
295 }
296 }
297 oop obj = JNIHandles::resolve(handle);
298 return obj == NULL? NULL: get_object(obj)->as_instance();
299}
300
301ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
302 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
303 _ArrayIndexOutOfBoundsException_instance
304 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
305 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
306 }
307 return _ArrayIndexOutOfBoundsException_instance;
308}
309ciInstance* ciEnv::ArrayStoreException_instance() {
310 if (_ArrayStoreException_instance == NULL) {
311 _ArrayStoreException_instance
312 = get_or_create_exception(_ArrayStoreException_handle,
313 vmSymbols::java_lang_ArrayStoreException());
314 }
315 return _ArrayStoreException_instance;
316}
317ciInstance* ciEnv::ClassCastException_instance() {
318 if (_ClassCastException_instance == NULL) {
319 _ClassCastException_instance
320 = get_or_create_exception(_ClassCastException_handle,
321 vmSymbols::java_lang_ClassCastException());
322 }
323 return _ClassCastException_instance;
324}
325
326ciInstance* ciEnv::the_null_string() {
327 if (_the_null_string == NULL) {
328 VM_ENTRY_MARK;
329 _the_null_string = get_object(Universe::the_null_string())->as_instance();
330 }
331 return _the_null_string;
332}
333
334ciInstance* ciEnv::the_min_jint_string() {
335 if (_the_min_jint_string == NULL) {
336 VM_ENTRY_MARK;
337 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
338 }
339 return _the_min_jint_string;
340}
341
342// ------------------------------------------------------------------
343// ciEnv::get_method_from_handle
344ciMethod* ciEnv::get_method_from_handle(Method* method) {
345 VM_ENTRY_MARK;
346 return get_metadata(method)->as_method();
347}
348
349// ------------------------------------------------------------------
350// ciEnv::array_element_offset_in_bytes
351int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
352 VM_ENTRY_MARK;
353 objArrayOop a = (objArrayOop)a_h->get_oop();
354 assert(a->is_objArray(), "");
355 int length = a->length();
356 oop o = o_h->get_oop();
357 for (int i = 0; i < length; i++) {
358 if (a->obj_at(i) == o) return i;
359 }
360 return -1;
361}
362
363
364// ------------------------------------------------------------------
365// ciEnv::check_klass_accessiblity
366//
367// Note: the logic of this method should mirror the logic of
368// ConstantPool::verify_constant_pool_resolve.
369bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
370 Klass* resolved_klass) {
371 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
372 return true;
373 }
374 if (accessing_klass->is_obj_array_klass()) {
375 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
376 }
377 if (!accessing_klass->is_instance_klass()) {
378 return true;
379 }
380
381 if (resolved_klass->is_objArray_klass()) {
382 // Find the element klass, if this is an array.
383 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
384 }
385 if (resolved_klass->is_instance_klass()) {
386 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
387 InstanceKlass::cast(resolved_klass),
388 true) == Reflection::ACCESS_OK);
389 }
390 return true;
391}
392
393// ------------------------------------------------------------------
394// ciEnv::get_klass_by_name_impl
395ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
396 const constantPoolHandle& cpool,
397 ciSymbol* name,
398 bool require_local) {
399 ASSERT_IN_VM;
400 EXCEPTION_CONTEXT;
401
402 // Now we need to check the SystemDictionary
403 Symbol* sym = name->get_symbol();
404 if (sym->char_at(0) == 'L' &&
405 sym->char_at(sym->utf8_length()-1) == ';') {
406 // This is a name from a signature. Strip off the trimmings.
407 // Call recursive to keep scope of strippedsym.
408 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
409 sym->utf8_length()-2);
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->char_at(0) == '[') {
432 fail_type = _unloaded_ciobjarrayklass;
433 } else {
434 fail_type = _unloaded_ciinstance_klass;
435 }
436 Klass* 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 = 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->char_at(0) == '[' &&
458 (sym->char_at(1) == '[' || sym->char_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
464 // Get element ciKlass recursively.
465 ciKlass* elem_klass =
466 get_klass_by_name_impl(accessing_klass,
467 cpool,
468 get_symbol(elem_sym),
469 require_local);
470 if (elem_klass != NULL && elem_klass->is_loaded()) {
471 // Now make an array for it
472 return ciObjArrayKlass::make_impl(elem_klass);
473 }
474 }
475
476 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
477 // Look inside the constant pool for pre-resolved class entries.
478 for (int i = cpool->length() - 1; i >= 1; i--) {
479 if (cpool->tag_at(i).is_klass()) {
480 Klass* kls = cpool->resolved_klass_at(i);
481 if (kls->name() == sym) {
482 found_klass = kls;
483 break;
484 }
485 }
486 }
487 }
488
489 if (found_klass != NULL) {
490 // Found it. Build a CI handle.
491 return get_klass(found_klass);
492 }
493
494 if (require_local) return NULL;
495
496 // Not yet loaded into the VM, or not governed by loader constraints.
497 // Make a CI representative for it.
498 return get_unloaded_klass(accessing_klass, name);
499}
500
501// ------------------------------------------------------------------
502// ciEnv::get_klass_by_name
503ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
504 ciSymbol* klass_name,
505 bool require_local) {
506 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
507 constantPoolHandle(),
508 klass_name,
509 require_local);)
510}
511
512// ------------------------------------------------------------------
513// ciEnv::get_klass_by_index_impl
514//
515// Implementation of get_klass_by_index.
516ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
517 int index,
518 bool& is_accessible,
519 ciInstanceKlass* accessor) {
520 EXCEPTION_CONTEXT;
521 Klass* klass = NULL;
522 Symbol* klass_name = NULL;
523
524 if (cpool->tag_at(index).is_symbol()) {
525 klass_name = cpool->symbol_at(index);
526 } else {
527 // Check if it's resolved if it's not a symbol constant pool entry.
528 klass = ConstantPool::klass_at_if_loaded(cpool, index);
529 // Try to look it up by name.
530 if (klass == NULL) {
531 klass_name = cpool->klass_name_at(index);
532 }
533 }
534
535 if (klass == NULL) {
536 // Not found in constant pool. Use the name to do the lookup.
537 ciKlass* k = get_klass_by_name_impl(accessor,
538 cpool,
539 get_symbol(klass_name),
540 false);
541 // Calculate accessibility the hard way.
542 if (!k->is_loaded()) {
543 is_accessible = false;
544 } else if (!oopDesc::equals(k->loader(), accessor->loader()) &&
545 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
546 // Loaded only remotely. Not linked yet.
547 is_accessible = false;
548 } else {
549 // Linked locally, and we must also check public/private, etc.
550 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
551 }
552 return k;
553 }
554
555 // Check for prior unloaded klass. The SystemDictionary's answers
556 // can vary over time but the compiler needs consistency.
557 ciSymbol* name = get_symbol(klass->name());
558 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
559 if (unloaded_klass != NULL) {
560 is_accessible = false;
561 return unloaded_klass;
562 }
563
564 // It is known to be accessible, since it was found in the constant pool.
565 is_accessible = true;
566 return get_klass(klass);
567}
568
569// ------------------------------------------------------------------
570// ciEnv::get_klass_by_index
571//
572// Get a klass from the constant pool.
573ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
574 int index,
575 bool& is_accessible,
576 ciInstanceKlass* accessor) {
577 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
578}
579
580// ------------------------------------------------------------------
581// ciEnv::get_constant_by_index_impl
582//
583// Implementation of get_constant_by_index().
584ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
585 int pool_index, int cache_index,
586 ciInstanceKlass* accessor) {
587 bool ignore_will_link;
588 EXCEPTION_CONTEXT;
589 int index = pool_index;
590 if (cache_index >= 0) {
591 assert(index < 0, "only one kind of index at a time");
592 index = cpool->object_to_cp_index(cache_index);
593 oop obj = cpool->resolved_references()->obj_at(cache_index);
594 if (obj != NULL) {
595 if (oopDesc::equals(obj, Universe::the_null_sentinel())) {
596 return ciConstant(T_OBJECT, get_object(NULL));
597 }
598 BasicType bt = T_OBJECT;
599 if (cpool->tag_at(index).is_dynamic_constant())
600 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index));
601 if (is_reference_type(bt)) {
602 } else {
603 // we have to unbox the primitive value
604 if (!is_java_primitive(bt)) return ciConstant();
605 jvalue value;
606 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
607 assert(bt2 == bt, "");
608 switch (bt2) {
609 case T_DOUBLE: return ciConstant(value.d);
610 case T_FLOAT: return ciConstant(value.f);
611 case T_LONG: return ciConstant(value.j);
612 case T_INT: return ciConstant(bt2, value.i);
613 case T_SHORT: return ciConstant(bt2, value.s);
614 case T_BYTE: return ciConstant(bt2, value.b);
615 case T_CHAR: return ciConstant(bt2, value.c);
616 case T_BOOLEAN: return ciConstant(bt2, value.z);
617 default: return ciConstant();
618 }
619 }
620 ciObject* ciobj = get_object(obj);
621 if (ciobj->is_array()) {
622 return ciConstant(T_ARRAY, ciobj);
623 } else {
624 assert(ciobj->is_instance(), "should be an instance");
625 return ciConstant(T_OBJECT, ciobj);
626 }
627 }
628 }
629 constantTag tag = cpool->tag_at(index);
630 if (tag.is_int()) {
631 return ciConstant(T_INT, (jint)cpool->int_at(index));
632 } else if (tag.is_long()) {
633 return ciConstant((jlong)cpool->long_at(index));
634 } else if (tag.is_float()) {
635 return ciConstant((jfloat)cpool->float_at(index));
636 } else if (tag.is_double()) {
637 return ciConstant((jdouble)cpool->double_at(index));
638 } else if (tag.is_string()) {
639 oop string = NULL;
640 assert(cache_index >= 0, "should have a cache index");
641 if (cpool->is_pseudo_string_at(index)) {
642 string = cpool->pseudo_string_at(index, cache_index);
643 } else {
644 string = cpool->string_at(index, cache_index, THREAD);
645 if (HAS_PENDING_EXCEPTION) {
646 CLEAR_PENDING_EXCEPTION;
647 record_out_of_memory_failure();
648 return ciConstant();
649 }
650 }
651 ciObject* constant = get_object(string);
652 if (constant->is_array()) {
653 return ciConstant(T_ARRAY, constant);
654 } else {
655 assert (constant->is_instance(), "must be an instance, or not? ");
656 return ciConstant(T_OBJECT, constant);
657 }
658 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
659 // 4881222: allow ldc to take a class type
660 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
661 if (HAS_PENDING_EXCEPTION) {
662 CLEAR_PENDING_EXCEPTION;
663 record_out_of_memory_failure();
664 return ciConstant();
665 }
666 assert (klass->is_instance_klass() || klass->is_array_klass(),
667 "must be an instance or array klass ");
668 return ciConstant(T_OBJECT, klass->java_mirror());
669 } else if (tag.is_method_type()) {
670 // must execute Java code to link this CP entry into cache[i].f1
671 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
672 ciObject* ciobj = get_unloaded_method_type_constant(signature);
673 return ciConstant(T_OBJECT, ciobj);
674 } else if (tag.is_method_handle()) {
675 // must execute Java code to link this CP entry into cache[i].f1
676 int ref_kind = cpool->method_handle_ref_kind_at(index);
677 int callee_index = cpool->method_handle_klass_index_at(index);
678 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
679 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
680 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
681 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
682 return ciConstant(T_OBJECT, ciobj);
683 } else if (tag.is_dynamic_constant()) {
684 return ciConstant();
685 } else {
686 ShouldNotReachHere();
687 return ciConstant();
688 }
689}
690
691// ------------------------------------------------------------------
692// ciEnv::get_constant_by_index
693//
694// Pull a constant out of the constant pool. How appropriate.
695//
696// Implementation note: this query is currently in no way cached.
697ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
698 int pool_index, int cache_index,
699 ciInstanceKlass* accessor) {
700 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
701}
702
703// ------------------------------------------------------------------
704// ciEnv::get_field_by_index_impl
705//
706// Implementation of get_field_by_index.
707//
708// Implementation note: the results of field lookups are cached
709// in the accessor klass.
710ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
711 int index) {
712 ciConstantPoolCache* cache = accessor->field_cache();
713 if (cache == NULL) {
714 ciField* field = new (arena()) ciField(accessor, index);
715 return field;
716 } else {
717 ciField* field = (ciField*)cache->get(index);
718 if (field == NULL) {
719 field = new (arena()) ciField(accessor, index);
720 cache->insert(index, field);
721 }
722 return field;
723 }
724}
725
726// ------------------------------------------------------------------
727// ciEnv::get_field_by_index
728//
729// Get a field by index from a klass's constant pool.
730ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
731 int index) {
732 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
733}
734
735// ------------------------------------------------------------------
736// ciEnv::lookup_method
737//
738// Perform an appropriate method lookup based on accessor, holder,
739// name, signature, and bytecode.
740Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
741 ciKlass* holder,
742 Symbol* name,
743 Symbol* sig,
744 Bytecodes::Code bc,
745 constantTag tag) {
746 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
747 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
748
749 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
750 Klass* holder_klass = holder->get_Klass();
751 methodHandle dest_method;
752 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
753 switch (bc) {
754 case Bytecodes::_invokestatic:
755 dest_method =
756 LinkResolver::resolve_static_call_or_null(link_info);
757 break;
758 case Bytecodes::_invokespecial:
759 dest_method =
760 LinkResolver::resolve_special_call_or_null(link_info);
761 break;
762 case Bytecodes::_invokeinterface:
763 dest_method =
764 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
765 break;
766 case Bytecodes::_invokevirtual:
767 dest_method =
768 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
769 break;
770 default: ShouldNotReachHere();
771 }
772
773 return dest_method();
774}
775
776
777// ------------------------------------------------------------------
778// ciEnv::get_method_by_index_impl
779ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
780 int index, Bytecodes::Code bc,
781 ciInstanceKlass* accessor) {
782 if (bc == Bytecodes::_invokedynamic) {
783 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
784 bool is_resolved = !cpce->is_f1_null();
785 // FIXME: code generation could allow for null (unlinked) call site
786 // The call site could be made patchable as follows:
787 // Load the appendix argument from the constant pool.
788 // Test the appendix argument and jump to a known deopt routine if it is null.
789 // Jump through a patchable call site, which is initially a deopt routine.
790 // Patch the call site to the nmethod entry point of the static compiled lambda form.
791 // As with other two-component call sites, both values must be independently verified.
792
793 if (is_resolved) {
794 // Get the invoker Method* from the constant pool.
795 // (The appendix argument, if any, will be noted in the method's signature.)
796 Method* adapter = cpce->f1_as_method();
797 return get_method(adapter);
798 }
799
800 // Fake a method that is equivalent to a declared method.
801 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
802 ciSymbol* name = ciSymbol::invokeBasic_name();
803 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
804 return get_unloaded_method(holder, name, signature, accessor);
805 } else {
806 const int holder_index = cpool->klass_ref_index_at(index);
807 bool holder_is_accessible;
808 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
809
810 // Get the method's name and signature.
811 Symbol* name_sym = cpool->name_ref_at(index);
812 Symbol* sig_sym = cpool->signature_ref_at(index);
813
814 if (cpool->has_preresolution()
815 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
816 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
817 // Short-circuit lookups for JSR 292-related call sites.
818 // That is, do not rely only on name-based lookups, because they may fail
819 // if the names are not resolvable in the boot class loader (7056328).
820 switch (bc) {
821 case Bytecodes::_invokevirtual:
822 case Bytecodes::_invokeinterface:
823 case Bytecodes::_invokespecial:
824 case Bytecodes::_invokestatic:
825 {
826 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
827 if (m != NULL) {
828 return get_method(m);
829 }
830 }
831 break;
832 default:
833 break;
834 }
835 }
836
837 if (holder_is_accessible) { // Our declared holder is loaded.
838 constantTag tag = cpool->tag_ref_at(index);
839 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
840 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
841 if (m != NULL &&
842 (bc == Bytecodes::_invokestatic
843 ? m->method_holder()->is_not_initialized()
844 : !m->method_holder()->is_loaded())) {
845 m = NULL;
846 }
847#ifdef ASSERT
848 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
849 m = NULL;
850 }
851#endif
852 if (m != NULL) {
853 // We found the method.
854 return get_method(m);
855 }
856 }
857
858 // Either the declared holder was not loaded, or the method could
859 // not be found. Create a dummy ciMethod to represent the failed
860 // lookup.
861 ciSymbol* name = get_symbol(name_sym);
862 ciSymbol* signature = get_symbol(sig_sym);
863 return get_unloaded_method(holder, name, signature, accessor);
864 }
865}
866
867
868// ------------------------------------------------------------------
869// ciEnv::get_instance_klass_for_declared_method_holder
870ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
871 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
872 // instead of a ciInstanceKlass. For that case simply pretend that the
873 // declared holder is Object.clone since that's where the call will bottom out.
874 // A more correct fix would trickle out through many interfaces in CI,
875 // requiring ciInstanceKlass* to become ciKlass* and many more places would
876 // require checks to make sure the expected type was found. Given that this
877 // only occurs for clone() the more extensive fix seems like overkill so
878 // instead we simply smear the array type into Object.
879 guarantee(method_holder != NULL, "no method holder");
880 if (method_holder->is_instance_klass()) {
881 return method_holder->as_instance_klass();
882 } else if (method_holder->is_array_klass()) {
883 return current()->Object_klass();
884 } else {
885 ShouldNotReachHere();
886 }
887 return NULL;
888}
889
890
891// ------------------------------------------------------------------
892// ciEnv::get_method_by_index
893ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
894 int index, Bytecodes::Code bc,
895 ciInstanceKlass* accessor) {
896 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
897}
898
899
900// ------------------------------------------------------------------
901// ciEnv::name_buffer
902char *ciEnv::name_buffer(int req_len) {
903 if (_name_buffer_len < req_len) {
904 if (_name_buffer == NULL) {
905 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
906 _name_buffer_len = req_len;
907 } else {
908 _name_buffer =
909 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
910 _name_buffer_len = req_len;
911 }
912 }
913 return _name_buffer;
914}
915
916// ------------------------------------------------------------------
917// ciEnv::is_in_vm
918bool ciEnv::is_in_vm() {
919 return JavaThread::current()->thread_state() == _thread_in_vm;
920}
921
922bool ciEnv::system_dictionary_modification_counter_changed_locked() {
923 assert_locked_or_safepoint(Compile_lock);
924 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
925}
926
927bool ciEnv::system_dictionary_modification_counter_changed() {
928 VM_ENTRY_MARK;
929 MutexLocker ml(Compile_lock, THREAD); // lock with safepoint check
930 return system_dictionary_modification_counter_changed_locked();
931}
932
933// ------------------------------------------------------------------
934// ciEnv::validate_compile_task_dependencies
935//
936// Check for changes during compilation (e.g. class loads, evolution,
937// breakpoints, call site invalidation).
938void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
939 if (failing()) return; // no need for further checks
940
941 bool counter_changed = system_dictionary_modification_counter_changed_locked();
942 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed);
943 if (result != Dependencies::end_marker) {
944 if (result == Dependencies::call_site_target_value) {
945 _inc_decompile_count_on_failure = false;
946 record_failure("call site target change");
947 } else if (Dependencies::is_klass_type(result)) {
948 record_failure("concurrent class loading");
949 } else {
950 record_failure("invalid non-klass dependency");
951 }
952 }
953}
954
955// ------------------------------------------------------------------
956// ciEnv::register_method
957void ciEnv::register_method(ciMethod* target,
958 int entry_bci,
959 CodeOffsets* offsets,
960 int orig_pc_offset,
961 CodeBuffer* code_buffer,
962 int frame_words,
963 OopMapSet* oop_map_set,
964 ExceptionHandlerTable* handler_table,
965 ImplicitExceptionTable* inc_table,
966 AbstractCompiler* compiler,
967 bool has_unsafe_access,
968 bool has_wide_vectors,
969 RTMState rtm_state) {
970 VM_ENTRY_MARK;
971 nmethod* nm = NULL;
972 {
973 // To prevent compile queue updates.
974 MutexLocker locker(MethodCompileQueue_lock, THREAD);
975
976 // Prevent SystemDictionary::add_to_hierarchy from running
977 // and invalidating our dependencies until we install this method.
978 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
979 MutexLocker ml(Compile_lock);
980 NoSafepointVerifier nsv;
981
982 // Change in Jvmti state may invalidate compilation.
983 if (!failing() && jvmti_state_changed()) {
984 record_failure("Jvmti state change invalidated dependencies");
985 }
986
987 // Change in DTrace flags may invalidate compilation.
988 if (!failing() &&
989 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
990 (!dtrace_method_probes() && DTraceMethodProbes) ||
991 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
992 record_failure("DTrace flags change invalidated dependencies");
993 }
994
995 if (!failing() && target->needs_clinit_barrier() &&
996 target->holder()->is_in_error_state()) {
997 record_failure("method holder is in error state");
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 && _inc_decompile_count_on_failure) {
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, task()->comp_level());
1050
1051 // Free codeBlobs
1052 code_buffer->free_blob();
1053
1054 if (nm != NULL) {
1055 nm->set_has_unsafe_access(has_unsafe_access);
1056 nm->set_has_wide_vectors(has_wide_vectors);
1057#if INCLUDE_RTM_OPT
1058 nm->set_rtm_state(rtm_state);
1059#endif
1060
1061 // Record successful registration.
1062 // (Put nm into the task handle *before* publishing to the Java heap.)
1063 if (task() != NULL) {
1064 task()->set_code(nm);
1065 }
1066
1067 if (entry_bci == InvocationEntryBci) {
1068 if (TieredCompilation) {
1069 // If there is an old version we're done with it
1070 CompiledMethod* old = method->code();
1071 if (TraceMethodReplacement && old != NULL) {
1072 ResourceMark rm;
1073 char *method_name = method->name_and_sig_as_C_string();
1074 tty->print_cr("Replacing method %s", method_name);
1075 }
1076 if (old != NULL) {
1077 old->make_not_used();
1078 }
1079 }
1080
1081 LogTarget(Info, nmethod, install) lt;
1082 if (lt.is_enabled()) {
1083 ResourceMark rm;
1084 char *method_name = method->name_and_sig_as_C_string();
1085 lt.print("Installing method (%d) %s ",
1086 task()->comp_level(), method_name);
1087 }
1088 // Allow the code to be executed
1089 method->set_code(method, nm);
1090 } else {
1091 LogTarget(Info, nmethod, install) lt;
1092 if (lt.is_enabled()) {
1093 ResourceMark rm;
1094 char *method_name = method->name_and_sig_as_C_string();
1095 lt.print("Installing osr method (%d) %s @ %d",
1096 task()->comp_level(), method_name, entry_bci);
1097 }
1098 method->method_holder()->add_osr_nmethod(nm);
1099 }
1100 nm->make_in_use();
1101 }
1102 } // safepoints are allowed again
1103
1104 if (nm != NULL) {
1105 // JVMTI -- compiled method notification (must be done outside lock)
1106 nm->post_compiled_method_load_event();
1107 } else {
1108 // The CodeCache is full.
1109 record_failure("code cache is full");
1110 }
1111}
1112
1113
1114// ------------------------------------------------------------------
1115// ciEnv::find_system_klass
1116ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1117 VM_ENTRY_MARK;
1118 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1119}
1120
1121// ------------------------------------------------------------------
1122// ciEnv::comp_level
1123int ciEnv::comp_level() {
1124 if (task() == NULL) return CompLevel_highest_tier;
1125 return task()->comp_level();
1126}
1127
1128// ------------------------------------------------------------------
1129// ciEnv::compile_id
1130uint ciEnv::compile_id() {
1131 if (task() == NULL) return 0;
1132 return task()->compile_id();
1133}
1134
1135// ------------------------------------------------------------------
1136// ciEnv::notice_inlined_method()
1137void ciEnv::notice_inlined_method(ciMethod* method) {
1138 _num_inlined_bytecodes += method->code_size_for_inlining();
1139}
1140
1141// ------------------------------------------------------------------
1142// ciEnv::num_inlined_bytecodes()
1143int ciEnv::num_inlined_bytecodes() const {
1144 return _num_inlined_bytecodes;
1145}
1146
1147// ------------------------------------------------------------------
1148// ciEnv::record_failure()
1149void ciEnv::record_failure(const char* reason) {
1150 if (_failure_reason == NULL) {
1151 // Record the first failure reason.
1152 _failure_reason = reason;
1153 }
1154}
1155
1156void ciEnv::report_failure(const char* reason) {
1157 EventCompilationFailure event;
1158 if (event.should_commit()) {
1159 event.set_compileId(compile_id());
1160 event.set_failureMessage(reason);
1161 event.commit();
1162 }
1163}
1164
1165// ------------------------------------------------------------------
1166// ciEnv::record_method_not_compilable()
1167void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1168 int new_compilable =
1169 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1170
1171 // Only note transitions to a worse state
1172 if (new_compilable > _compilable) {
1173 if (log() != NULL) {
1174 if (all_tiers) {
1175 log()->elem("method_not_compilable");
1176 } else {
1177 log()->elem("method_not_compilable_at_tier level='%d'",
1178 current()->task()->comp_level());
1179 }
1180 }
1181 _compilable = new_compilable;
1182
1183 // Reset failure reason; this one is more important.
1184 _failure_reason = NULL;
1185 record_failure(reason);
1186 }
1187}
1188
1189// ------------------------------------------------------------------
1190// ciEnv::record_out_of_memory_failure()
1191void ciEnv::record_out_of_memory_failure() {
1192 // If memory is low, we stop compiling methods.
1193 record_method_not_compilable("out of memory");
1194}
1195
1196ciInstance* ciEnv::unloaded_ciinstance() {
1197 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1198}
1199
1200// ------------------------------------------------------------------
1201// ciEnv::dump_replay_data*
1202
1203// Don't change thread state and acquire any locks.
1204// Safe to call from VM error reporter.
1205
1206void ciEnv::dump_compile_data(outputStream* out) {
1207 CompileTask* task = this->task();
1208 if (task) {
1209 Method* method = task->method();
1210 int entry_bci = task->osr_bci();
1211 int comp_level = task->comp_level();
1212 out->print("compile %s %s %s %d %d",
1213 method->klass_name()->as_quoted_ascii(),
1214 method->name()->as_quoted_ascii(),
1215 method->signature()->as_quoted_ascii(),
1216 entry_bci, comp_level);
1217 if (compiler_data() != NULL) {
1218 if (is_c2_compile(comp_level)) {
1219#ifdef COMPILER2
1220 // Dump C2 inlining data.
1221 ((Compile*)compiler_data())->dump_inline_data(out);
1222#endif
1223 } else if (is_c1_compile(comp_level)) {
1224#ifdef COMPILER1
1225 // Dump C1 inlining data.
1226 ((Compilation*)compiler_data())->dump_inline_data(out);
1227#endif
1228 }
1229 }
1230 out->cr();
1231 }
1232}
1233
1234void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1235 ResourceMark rm;
1236#if INCLUDE_JVMTI
1237 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1238 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1239 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1240#endif // INCLUDE_JVMTI
1241
1242 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1243 out->print_cr("# %d ciObject found", objects->length());
1244 for (int i = 0; i < objects->length(); i++) {
1245 objects->at(i)->dump_replay_data(out);
1246 }
1247 dump_compile_data(out);
1248 out->flush();
1249}
1250
1251void ciEnv::dump_replay_data(outputStream* out) {
1252 GUARDED_VM_ENTRY(
1253 MutexLocker ml(Compile_lock);
1254 dump_replay_data_unsafe(out);
1255 )
1256}
1257
1258void ciEnv::dump_replay_data(int compile_id) {
1259 static char buffer[O_BUFLEN];
1260 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1261 if (ret > 0) {
1262 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1263 if (fd != -1) {
1264 FILE* replay_data_file = os::open(fd, "w");
1265 if (replay_data_file != NULL) {
1266 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1267 dump_replay_data(&replay_data_stream);
1268 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1269 } else {
1270 tty->print_cr("# Can't open file to dump replay data.");
1271 }
1272 }
1273 }
1274}
1275
1276void ciEnv::dump_inline_data(int compile_id) {
1277 static char buffer[O_BUFLEN];
1278 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1279 if (ret > 0) {
1280 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1281 if (fd != -1) {
1282 FILE* inline_data_file = os::open(fd, "w");
1283 if (inline_data_file != NULL) {
1284 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1285 GUARDED_VM_ENTRY(
1286 MutexLocker ml(Compile_lock);
1287 dump_compile_data(&replay_data_stream);
1288 )
1289 replay_data_stream.flush();
1290 tty->print("# Compiler inline data is saved as: ");
1291 tty->print_cr("%s", buffer);
1292 } else {
1293 tty->print_cr("# Can't open file to dump inline data.");
1294 }
1295 }
1296 }
1297}
1298