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/systemDictionary.hpp"
37 #include "classfile/vmSymbols.hpp"
38 #include "code/codeCache.hpp"
39 #include "code/scopeDesc.hpp"
40 #include "compiler/compileBroker.hpp"
41 #include "compiler/compileLog.hpp"
42 #include "compiler/disassembler.hpp"
43 #include "gc/shared/collectedHeap.inline.hpp"
44 #include "interpreter/linkResolver.hpp"
45 #include "jfr/jfrEvents.hpp"
46 #include "memory/allocation.inline.hpp"
47 #include "memory/oopFactory.hpp"
48 #include "memory/resourceArea.hpp"
49 #include "memory/universe.hpp"
50 #include "oops/constantPool.inline.hpp"
51 #include "oops/cpCache.inline.hpp"
52 #include "oops/method.inline.hpp"
53 #include "oops/methodData.hpp"
54 #include "oops/objArrayKlass.hpp"
55 #include "oops/objArrayOop.inline.hpp"
56 #include "oops/oop.inline.hpp"
57 #include "prims/jvmtiExport.hpp"
58 #include "runtime/init.hpp"
59 #include "runtime/reflection.hpp"
60 #include "runtime/jniHandles.inline.hpp"
61 #include "runtime/safepointVerifiers.hpp"
62 #include "runtime/sharedRuntime.hpp"
63 #include "runtime/thread.inline.hpp"
64 #include "utilities/dtrace.hpp"
65 #include "utilities/macros.hpp"
66 #ifdef COMPILER1
67 #include "c1/c1_Runtime1.hpp"
68 #endif
69 #ifdef COMPILER2
70 #include "opto/runtime.hpp"
71 #endif
72
73 // ciEnv
74 //
75 // This class is the top level broker for requests from the compiler
76 // to the VM.
77
78 ciObject* ciEnv::_null_object_instance;
79
80 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL;
81 WK_KLASSES_DO(WK_KLASS_DEFN)
82 #undef WK_KLASS_DEFN
83
84 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
85 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
86 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
87
88 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
89 jobject ciEnv::_ArrayStoreException_handle = NULL;
90 jobject ciEnv::_ClassCastException_handle = NULL;
91
92 #ifndef PRODUCT
93 static bool firstEnv = true;
94 #endif /* PRODUCT */
95
96 // ------------------------------------------------------------------
97 // ciEnv::ciEnv
98 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
99 : _ciEnv_arena(mtCompiler) {
100 VM_ENTRY_MARK;
101
102 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
103 thread->set_env(this);
104 assert(ciEnv::current() == this, "sanity");
105
106 _oop_recorder = NULL;
107 _debug_info = NULL;
108 _dependencies = NULL;
109 _failure_reason = NULL;
110 _inc_decompile_count_on_failure = true;
111 _compilable = MethodCompilable;
112 _break_at_compile = false;
113 _compiler_data = NULL;
114 #ifndef PRODUCT
115 assert(!firstEnv, "not initialized properly");
116 #endif /* !PRODUCT */
117
118 _system_dictionary_modification_counter = system_dictionary_modification_counter;
119 _num_inlined_bytecodes = 0;
120 assert(task == NULL || thread->task() == task, "sanity");
121 _task = task;
122 _log = NULL;
123
124 // Temporary buffer for creating symbols and such.
125 _name_buffer = NULL;
126 _name_buffer_len = 0;
127
128 _arena = &_ciEnv_arena;
129 _factory = new (_arena) ciObjectFactory(_arena, 128);
130
131 // Preload commonly referenced system ciObjects.
132
133 // During VM initialization, these instances have not yet been created.
134 // Assertions ensure that these instances are not accessed before
135 // their initialization.
136
137 assert(Universe::is_fully_initialized(), "should be complete");
138
139 oop o = Universe::null_ptr_exception_instance();
140 assert(o != NULL, "should have been initialized");
141 _NullPointerException_instance = get_object(o)->as_instance();
142 o = Universe::arithmetic_exception_instance();
143 assert(o != NULL, "should have been initialized");
144 _ArithmeticException_instance = get_object(o)->as_instance();
145
146 _ArrayIndexOutOfBoundsException_instance = NULL;
147 _ArrayStoreException_instance = NULL;
148 _ClassCastException_instance = NULL;
149 _the_null_string = NULL;
150 _the_min_jint_string = NULL;
151
152 _jvmti_can_hotswap_or_post_breakpoint = false;
153 _jvmti_can_access_local_variables = false;
154 _jvmti_can_post_on_exceptions = false;
155 _jvmti_can_pop_frame = false;
156 }
157
158 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
159 ASSERT_IN_VM;
160
161 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
162 CompilerThread* current_thread = CompilerThread::current();
163 assert(current_thread->env() == NULL, "must be");
164 current_thread->set_env(this);
165 assert(ciEnv::current() == this, "sanity");
166
167 _oop_recorder = NULL;
168 _debug_info = NULL;
169 _dependencies = NULL;
170 _failure_reason = NULL;
171 _inc_decompile_count_on_failure = true;
172 _compilable = MethodCompilable_never;
173 _break_at_compile = false;
174 _compiler_data = NULL;
175 #ifndef PRODUCT
176 assert(firstEnv, "must be first");
177 firstEnv = false;
178 #endif /* !PRODUCT */
179
180 _system_dictionary_modification_counter = 0;
181 _num_inlined_bytecodes = 0;
182 _task = NULL;
183 _log = NULL;
184
185 // Temporary buffer for creating symbols and such.
186 _name_buffer = NULL;
187 _name_buffer_len = 0;
188
189 _arena = arena;
190 _factory = new (_arena) ciObjectFactory(_arena, 128);
191
192 // Preload commonly referenced system ciObjects.
193
194 // During VM initialization, these instances have not yet been created.
195 // Assertions ensure that these instances are not accessed before
196 // their initialization.
197
198 assert(Universe::is_fully_initialized(), "must be");
199
200 _NullPointerException_instance = NULL;
201 _ArithmeticException_instance = NULL;
202 _ArrayIndexOutOfBoundsException_instance = NULL;
203 _ArrayStoreException_instance = NULL;
204 _ClassCastException_instance = NULL;
205 _the_null_string = NULL;
206 _the_min_jint_string = NULL;
207
208 _jvmti_can_hotswap_or_post_breakpoint = false;
209 _jvmti_can_access_local_variables = false;
210 _jvmti_can_post_on_exceptions = false;
211 _jvmti_can_pop_frame = false;
212 }
213
214 ciEnv::~ciEnv() {
215 GUARDED_VM_ENTRY(
216 CompilerThread* current_thread = CompilerThread::current();
217 _factory->remove_symbols();
218 // Need safepoint to clear the env on the thread. RedefineClasses might
219 // be reading it.
220 current_thread->set_env(NULL);
221 )
222 }
223
224 // ------------------------------------------------------------------
225 // Cache Jvmti state
226 void ciEnv::cache_jvmti_state() {
227 VM_ENTRY_MARK;
228 // Get Jvmti capabilities under lock to get consistant values.
229 MutexLocker mu(JvmtiThreadState_lock);
230 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
231 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
232 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
233 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
234 }
235
236 bool ciEnv::jvmti_state_changed() const {
237 if (!_jvmti_can_access_local_variables &&
238 JvmtiExport::can_access_local_variables()) {
239 return true;
240 }
241 if (!_jvmti_can_hotswap_or_post_breakpoint &&
242 JvmtiExport::can_hotswap_or_post_breakpoint()) {
243 return true;
244 }
245 if (!_jvmti_can_post_on_exceptions &&
246 JvmtiExport::can_post_on_exceptions()) {
247 return true;
248 }
249 if (!_jvmti_can_pop_frame &&
250 JvmtiExport::can_pop_frame()) {
251 return true;
252 }
253 return false;
254 }
255
256 // ------------------------------------------------------------------
257 // Cache DTrace flags
258 void ciEnv::cache_dtrace_flags() {
259 // Need lock?
260 _dtrace_extended_probes = ExtendedDTraceProbes;
261 if (_dtrace_extended_probes) {
262 _dtrace_monitor_probes = true;
263 _dtrace_method_probes = true;
264 _dtrace_alloc_probes = true;
265 } else {
266 _dtrace_monitor_probes = DTraceMonitorProbes;
267 _dtrace_method_probes = DTraceMethodProbes;
268 _dtrace_alloc_probes = DTraceAllocProbes;
269 }
270 }
271
272 // ------------------------------------------------------------------
273 // helper for lazy exception creation
274 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
275 VM_ENTRY_MARK;
276 if (handle == NULL) {
277 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
278 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
279 jobject objh = NULL;
280 if (!HAS_PENDING_EXCEPTION && k != NULL) {
281 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
282 if (!HAS_PENDING_EXCEPTION)
283 objh = JNIHandles::make_global(Handle(THREAD, obj));
284 }
285 if (HAS_PENDING_EXCEPTION) {
286 CLEAR_PENDING_EXCEPTION;
287 } else {
288 handle = objh;
289 }
290 }
291 oop obj = JNIHandles::resolve(handle);
292 return obj == NULL? NULL: get_object(obj)->as_instance();
293 }
294
295 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
296 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
297 _ArrayIndexOutOfBoundsException_instance
298 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
299 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
300 }
301 return _ArrayIndexOutOfBoundsException_instance;
302 }
303 ciInstance* ciEnv::ArrayStoreException_instance() {
304 if (_ArrayStoreException_instance == NULL) {
305 _ArrayStoreException_instance
306 = get_or_create_exception(_ArrayStoreException_handle,
307 vmSymbols::java_lang_ArrayStoreException());
308 }
309 return _ArrayStoreException_instance;
310 }
311 ciInstance* ciEnv::ClassCastException_instance() {
312 if (_ClassCastException_instance == NULL) {
313 _ClassCastException_instance
314 = get_or_create_exception(_ClassCastException_handle,
315 vmSymbols::java_lang_ClassCastException());
316 }
317 return _ClassCastException_instance;
318 }
319
320 ciInstance* ciEnv::the_null_string() {
321 if (_the_null_string == NULL) {
322 VM_ENTRY_MARK;
323 _the_null_string = get_object(Universe::the_null_string())->as_instance();
324 }
325 return _the_null_string;
326 }
327
328 ciInstance* ciEnv::the_min_jint_string() {
329 if (_the_min_jint_string == NULL) {
330 VM_ENTRY_MARK;
331 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
332 }
333 return _the_min_jint_string;
334 }
335
336 // ------------------------------------------------------------------
337 // ciEnv::get_method_from_handle
338 ciMethod* ciEnv::get_method_from_handle(Method* method) {
339 VM_ENTRY_MARK;
340 return get_metadata(method)->as_method();
341 }
342
343 // ------------------------------------------------------------------
344 // ciEnv::array_element_offset_in_bytes
345 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
346 VM_ENTRY_MARK;
347 objArrayOop a = (objArrayOop)a_h->get_oop();
348 assert(a->is_objArray(), "");
349 int length = a->length();
350 oop o = o_h->get_oop();
351 for (int i = 0; i < length; i++) {
352 if (a->obj_at(i) == o) return i;
353 }
354 return -1;
355 }
356
357
358 // ------------------------------------------------------------------
359 // ciEnv::check_klass_accessiblity
360 //
361 // Note: the logic of this method should mirror the logic of
362 // ConstantPool::verify_constant_pool_resolve.
363 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
364 Klass* resolved_klass) {
365 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
366 return true;
367 }
368 if (accessing_klass->is_obj_array_klass()) {
369 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
370 }
371 if (!accessing_klass->is_instance_klass()) {
372 return true;
373 }
374
375 if (resolved_klass->is_objArray_klass()) {
376 // Find the element klass, if this is an array.
377 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
378 }
379 if (resolved_klass->is_instance_klass()) {
380 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
381 InstanceKlass::cast(resolved_klass),
382 true) == Reflection::ACCESS_OK);
383 }
384 return true;
385 }
386
387 // ------------------------------------------------------------------
388 // ciEnv::get_klass_by_name_impl
389 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
390 const constantPoolHandle& cpool,
391 ciSymbol* name,
392 bool require_local) {
393 ASSERT_IN_VM;
394 EXCEPTION_CONTEXT;
395
396 // Now we need to check the SystemDictionary
397 Symbol* sym = name->get_symbol();
398 if (sym->byte_at(0) == 'L' &&
399 sym->byte_at(sym->utf8_length()-1) == ';') {
400 // This is a name from a signature. Strip off the trimmings.
401 // Call recursive to keep scope of strippedsym.
402 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
403 sym->utf8_length()-2,
404 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass));
405 ciSymbol* strippedname = get_symbol(strippedsym);
406 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
407 }
408
409 // Check for prior unloaded klass. The SystemDictionary's answers
410 // can vary over time but the compiler needs consistency.
411 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
412 if (unloaded_klass != NULL) {
413 if (require_local) return NULL;
414 return unloaded_klass;
415 }
416
417 Handle loader(THREAD, (oop)NULL);
418 Handle domain(THREAD, (oop)NULL);
419 if (accessing_klass != NULL) {
420 loader = Handle(THREAD, accessing_klass->loader());
421 domain = Handle(THREAD, accessing_klass->protection_domain());
422 }
423
424 // setup up the proper type to return on OOM
425 ciKlass* fail_type;
426 if (sym->byte_at(0) == '[') {
427 fail_type = _unloaded_ciobjarrayklass;
428 } else {
429 fail_type = _unloaded_ciinstance_klass;
430 }
431 Klass* found_klass;
432 {
433 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
434 MutexLocker ml(Compile_lock);
435 Klass* kls;
436 if (!require_local) {
437 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
438 KILL_COMPILE_ON_FATAL_(fail_type));
439 } else {
440 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
441 KILL_COMPILE_ON_FATAL_(fail_type));
442 }
443 found_klass = kls;
444 }
445
446 // If we fail to find an array klass, look again for its element type.
447 // The element type may be available either locally or via constraints.
448 // In either case, if we can find the element type in the system dictionary,
449 // we must build an array type around it. The CI requires array klasses
450 // to be loaded if their element klasses are loaded, except when memory
451 // is exhausted.
452 if (sym->byte_at(0) == '[' &&
453 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) {
454 // We have an unloaded array.
455 // Build it on the fly if the element class exists.
456 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1,
457 sym->utf8_length()-1,
458 KILL_COMPILE_ON_FATAL_(fail_type));
459
460 // Get element ciKlass recursively.
461 ciKlass* elem_klass =
462 get_klass_by_name_impl(accessing_klass,
463 cpool,
464 get_symbol(elem_sym),
465 require_local);
466 if (elem_klass != NULL && elem_klass->is_loaded()) {
467 // Now make an array for it
468 return ciObjArrayKlass::make_impl(elem_klass);
469 }
470 }
471
472 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
473 // Look inside the constant pool for pre-resolved class entries.
474 for (int i = cpool->length() - 1; i >= 1; i--) {
475 if (cpool->tag_at(i).is_klass()) {
476 Klass* kls = cpool->resolved_klass_at(i);
477 if (kls->name() == sym) {
478 found_klass = kls;
479 break;
480 }
481 }
482 }
483 }
484
485 if (found_klass != NULL) {
486 // Found it. Build a CI handle.
487 return get_klass(found_klass);
488 }
489
490 if (require_local) return NULL;
491
492 // Not yet loaded into the VM, or not governed by loader constraints.
493 // Make a CI representative for it.
494 return get_unloaded_klass(accessing_klass, name);
495 }
496
497 // ------------------------------------------------------------------
498 // ciEnv::get_klass_by_name
499 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
500 ciSymbol* klass_name,
501 bool require_local) {
502 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
503 constantPoolHandle(),
504 klass_name,
505 require_local);)
506 }
507
508 // ------------------------------------------------------------------
509 // ciEnv::get_klass_by_index_impl
510 //
511 // Implementation of get_klass_by_index.
512 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
513 int index,
514 bool& is_accessible,
515 ciInstanceKlass* accessor) {
516 EXCEPTION_CONTEXT;
517 Klass* klass = NULL;
518 Symbol* klass_name = NULL;
519
520 if (cpool->tag_at(index).is_symbol()) {
521 klass_name = cpool->symbol_at(index);
522 } else {
523 // Check if it's resolved if it's not a symbol constant pool entry.
524 klass = ConstantPool::klass_at_if_loaded(cpool, index);
525 // Try to look it up by name.
526 if (klass == NULL) {
527 klass_name = cpool->klass_name_at(index);
528 }
529 }
530
531 if (klass == NULL) {
532 // Not found in constant pool. Use the name to do the lookup.
533 ciKlass* k = get_klass_by_name_impl(accessor,
534 cpool,
535 get_symbol(klass_name),
536 false);
537 // Calculate accessibility the hard way.
538 if (!k->is_loaded()) {
539 is_accessible = false;
540 } else if (!oopDesc::equals(k->loader(), accessor->loader()) &&
541 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
542 // Loaded only remotely. Not linked yet.
543 is_accessible = false;
544 } else {
545 // Linked locally, and we must also check public/private, etc.
546 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
547 }
548 return k;
549 }
550
551 // Check for prior unloaded klass. The SystemDictionary's answers
552 // can vary over time but the compiler needs consistency.
553 ciSymbol* name = get_symbol(klass->name());
554 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
555 if (unloaded_klass != NULL) {
556 is_accessible = false;
557 return unloaded_klass;
558 }
559
560 // It is known to be accessible, since it was found in the constant pool.
561 is_accessible = true;
562 return get_klass(klass);
563 }
564
565 // ------------------------------------------------------------------
566 // ciEnv::get_klass_by_index
567 //
568 // Get a klass from the constant pool.
569 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
570 int index,
571 bool& is_accessible,
572 ciInstanceKlass* accessor) {
573 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
574 }
575
576 // ------------------------------------------------------------------
577 // ciEnv::get_constant_by_index_impl
578 //
579 // Implementation of get_constant_by_index().
580 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
581 int pool_index, int cache_index,
582 ciInstanceKlass* accessor) {
583 bool ignore_will_link;
584 EXCEPTION_CONTEXT;
585 int index = pool_index;
586 if (cache_index >= 0) {
587 assert(index < 0, "only one kind of index at a time");
588 index = cpool->object_to_cp_index(cache_index);
589 oop obj = cpool->resolved_references()->obj_at(cache_index);
590 if (obj != NULL) {
591 if (oopDesc::equals(obj, Universe::the_null_sentinel())) {
592 return ciConstant(T_OBJECT, get_object(NULL));
593 }
594 BasicType bt = T_OBJECT;
595 if (cpool->tag_at(index).is_dynamic_constant())
596 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index));
597 if (is_reference_type(bt)) {
598 } else {
599 // we have to unbox the primitive value
600 if (!is_java_primitive(bt)) return ciConstant();
601 jvalue value;
602 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
603 assert(bt2 == bt, "");
604 switch (bt2) {
605 case T_DOUBLE: return ciConstant(value.d);
606 case T_FLOAT: return ciConstant(value.f);
607 case T_LONG: return ciConstant(value.j);
608 case T_INT: return ciConstant(bt2, value.i);
609 case T_SHORT: return ciConstant(bt2, value.s);
610 case T_BYTE: return ciConstant(bt2, value.b);
611 case T_CHAR: return ciConstant(bt2, value.c);
612 case T_BOOLEAN: return ciConstant(bt2, value.z);
613 default: return ciConstant();
614 }
615 }
616 ciObject* ciobj = get_object(obj);
617 if (ciobj->is_array()) {
618 return ciConstant(T_ARRAY, ciobj);
619 } else {
620 assert(ciobj->is_instance(), "should be an instance");
621 return ciConstant(T_OBJECT, ciobj);
622 }
623 }
624 }
625 constantTag tag = cpool->tag_at(index);
626 if (tag.is_int()) {
627 return ciConstant(T_INT, (jint)cpool->int_at(index));
628 } else if (tag.is_long()) {
629 return ciConstant((jlong)cpool->long_at(index));
630 } else if (tag.is_float()) {
631 return ciConstant((jfloat)cpool->float_at(index));
632 } else if (tag.is_double()) {
633 return ciConstant((jdouble)cpool->double_at(index));
634 } else if (tag.is_string()) {
635 oop string = NULL;
636 assert(cache_index >= 0, "should have a cache index");
637 if (cpool->is_pseudo_string_at(index)) {
638 string = cpool->pseudo_string_at(index, cache_index);
639 } else {
640 string = cpool->string_at(index, cache_index, THREAD);
641 if (HAS_PENDING_EXCEPTION) {
642 CLEAR_PENDING_EXCEPTION;
643 record_out_of_memory_failure();
644 return ciConstant();
645 }
646 }
647 ciObject* constant = get_object(string);
648 if (constant->is_array()) {
649 return ciConstant(T_ARRAY, constant);
650 } else {
651 assert (constant->is_instance(), "must be an instance, or not? ");
652 return ciConstant(T_OBJECT, constant);
653 }
654 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
655 // 4881222: allow ldc to take a class type
656 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
657 if (HAS_PENDING_EXCEPTION) {
658 CLEAR_PENDING_EXCEPTION;
659 record_out_of_memory_failure();
660 return ciConstant();
661 }
662 assert (klass->is_instance_klass() || klass->is_array_klass(),
663 "must be an instance or array klass ");
664 return ciConstant(T_OBJECT, klass->java_mirror());
665 } else if (tag.is_method_type()) {
666 // must execute Java code to link this CP entry into cache[i].f1
667 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
668 ciObject* ciobj = get_unloaded_method_type_constant(signature);
669 return ciConstant(T_OBJECT, ciobj);
670 } else if (tag.is_method_handle()) {
671 // must execute Java code to link this CP entry into cache[i].f1
672 int ref_kind = cpool->method_handle_ref_kind_at(index);
673 int callee_index = cpool->method_handle_klass_index_at(index);
674 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
675 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
676 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
677 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
678 return ciConstant(T_OBJECT, ciobj);
679 } else if (tag.is_dynamic_constant()) {
680 return ciConstant();
681 } else {
682 ShouldNotReachHere();
683 return ciConstant();
684 }
685 }
686
687 // ------------------------------------------------------------------
688 // ciEnv::get_constant_by_index
689 //
690 // Pull a constant out of the constant pool. How appropriate.
691 //
692 // Implementation note: this query is currently in no way cached.
693 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
694 int pool_index, int cache_index,
695 ciInstanceKlass* accessor) {
696 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
697 }
698
699 // ------------------------------------------------------------------
700 // ciEnv::get_field_by_index_impl
701 //
702 // Implementation of get_field_by_index.
703 //
704 // Implementation note: the results of field lookups are cached
705 // in the accessor klass.
706 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
707 int index) {
708 ciConstantPoolCache* cache = accessor->field_cache();
709 if (cache == NULL) {
710 ciField* field = new (arena()) ciField(accessor, index);
711 return field;
712 } else {
713 ciField* field = (ciField*)cache->get(index);
714 if (field == NULL) {
715 field = new (arena()) ciField(accessor, index);
716 cache->insert(index, field);
717 }
718 return field;
719 }
720 }
721
722 // ------------------------------------------------------------------
723 // ciEnv::get_field_by_index
724 //
725 // Get a field by index from a klass's constant pool.
726 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
727 int index) {
728 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
729 }
730
731 // ------------------------------------------------------------------
732 // ciEnv::lookup_method
733 //
734 // Perform an appropriate method lookup based on accessor, holder,
735 // name, signature, and bytecode.
736 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
737 ciKlass* holder,
738 Symbol* name,
739 Symbol* sig,
740 Bytecodes::Code bc,
741 constantTag tag) {
742 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
743 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
744
745 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
746 Klass* holder_klass = holder->get_Klass();
747 methodHandle dest_method;
748 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
749 switch (bc) {
750 case Bytecodes::_invokestatic:
751 dest_method =
752 LinkResolver::resolve_static_call_or_null(link_info);
753 break;
754 case Bytecodes::_invokespecial:
755 dest_method =
756 LinkResolver::resolve_special_call_or_null(link_info);
757 break;
758 case Bytecodes::_invokeinterface:
759 dest_method =
760 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
761 break;
762 case Bytecodes::_invokevirtual:
763 dest_method =
764 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
765 break;
766 default: ShouldNotReachHere();
767 }
768
769 return dest_method();
770 }
771
772
773 // ------------------------------------------------------------------
774 // ciEnv::get_method_by_index_impl
775 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
776 int index, Bytecodes::Code bc,
777 ciInstanceKlass* accessor) {
778 if (bc == Bytecodes::_invokedynamic) {
779 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
780 bool is_resolved = !cpce->is_f1_null();
781 // FIXME: code generation could allow for null (unlinked) call site
782 // The call site could be made patchable as follows:
783 // Load the appendix argument from the constant pool.
784 // Test the appendix argument and jump to a known deopt routine if it is null.
785 // Jump through a patchable call site, which is initially a deopt routine.
786 // Patch the call site to the nmethod entry point of the static compiled lambda form.
787 // As with other two-component call sites, both values must be independently verified.
788
789 if (is_resolved) {
790 // Get the invoker Method* from the constant pool.
791 // (The appendix argument, if any, will be noted in the method's signature.)
792 Method* adapter = cpce->f1_as_method();
793 return get_method(adapter);
794 }
795
796 // Fake a method that is equivalent to a declared method.
797 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
798 ciSymbol* name = ciSymbol::invokeBasic_name();
799 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
800 return get_unloaded_method(holder, name, signature, accessor);
801 } else {
802 const int holder_index = cpool->klass_ref_index_at(index);
803 bool holder_is_accessible;
804 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
805
806 // Get the method's name and signature.
807 Symbol* name_sym = cpool->name_ref_at(index);
808 Symbol* sig_sym = cpool->signature_ref_at(index);
809
810 if (cpool->has_preresolution()
811 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
812 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
813 // Short-circuit lookups for JSR 292-related call sites.
814 // That is, do not rely only on name-based lookups, because they may fail
815 // if the names are not resolvable in the boot class loader (7056328).
816 switch (bc) {
817 case Bytecodes::_invokevirtual:
818 case Bytecodes::_invokeinterface:
819 case Bytecodes::_invokespecial:
820 case Bytecodes::_invokestatic:
821 {
822 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
823 if (m != NULL) {
824 return get_method(m);
825 }
826 }
827 break;
828 default:
829 break;
830 }
831 }
832
833 if (holder_is_accessible) { // Our declared holder is loaded.
834 constantTag tag = cpool->tag_ref_at(index);
835 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
836 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
837 if (m != NULL &&
838 (bc == Bytecodes::_invokestatic
839 ? m->method_holder()->is_not_initialized()
840 : !m->method_holder()->is_loaded())) {
841 m = NULL;
842 }
843 #ifdef ASSERT
844 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
845 m = NULL;
846 }
847 #endif
848 if (m != NULL) {
849 // We found the method.
850 return get_method(m);
851 }
852 }
853
854 // Either the declared holder was not loaded, or the method could
855 // not be found. Create a dummy ciMethod to represent the failed
856 // lookup.
857 ciSymbol* name = get_symbol(name_sym);
858 ciSymbol* signature = get_symbol(sig_sym);
859 return get_unloaded_method(holder, name, signature, accessor);
860 }
861 }
862
863
864 // ------------------------------------------------------------------
865 // ciEnv::get_instance_klass_for_declared_method_holder
866 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
867 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
868 // instead of a ciInstanceKlass. For that case simply pretend that the
869 // declared holder is Object.clone since that's where the call will bottom out.
870 // A more correct fix would trickle out through many interfaces in CI,
871 // requiring ciInstanceKlass* to become ciKlass* and many more places would
872 // require checks to make sure the expected type was found. Given that this
873 // only occurs for clone() the more extensive fix seems like overkill so
874 // instead we simply smear the array type into Object.
875 guarantee(method_holder != NULL, "no method holder");
876 if (method_holder->is_instance_klass()) {
877 return method_holder->as_instance_klass();
878 } else if (method_holder->is_array_klass()) {
879 return current()->Object_klass();
880 } else {
881 ShouldNotReachHere();
882 }
883 return NULL;
884 }
885
886
887 // ------------------------------------------------------------------
888 // ciEnv::get_method_by_index
889 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
890 int index, Bytecodes::Code bc,
891 ciInstanceKlass* accessor) {
892 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
893 }
894
895
896 // ------------------------------------------------------------------
897 // ciEnv::name_buffer
898 char *ciEnv::name_buffer(int req_len) {
899 if (_name_buffer_len < req_len) {
900 if (_name_buffer == NULL) {
901 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
902 _name_buffer_len = req_len;
903 } else {
904 _name_buffer =
905 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
906 _name_buffer_len = req_len;
907 }
908 }
909 return _name_buffer;
910 }
911
912 // ------------------------------------------------------------------
913 // ciEnv::is_in_vm
914 bool ciEnv::is_in_vm() {
915 return JavaThread::current()->thread_state() == _thread_in_vm;
916 }
917
918 bool ciEnv::system_dictionary_modification_counter_changed() {
919 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
920 }
921
922 // ------------------------------------------------------------------
923 // ciEnv::validate_compile_task_dependencies
924 //
925 // Check for changes during compilation (e.g. class loads, evolution,
926 // breakpoints, call site invalidation).
927 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
928 if (failing()) return; // no need for further checks
929
930 bool counter_changed = system_dictionary_modification_counter_changed();
931 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed);
932 if (result != Dependencies::end_marker) {
933 if (result == Dependencies::call_site_target_value) {
934 _inc_decompile_count_on_failure = false;
935 record_failure("call site target change");
936 } else if (Dependencies::is_klass_type(result)) {
937 record_failure("concurrent class loading");
938 } else {
939 record_failure("invalid non-klass dependency");
940 }
941 }
942 }
943
944 // ------------------------------------------------------------------
945 // ciEnv::register_method
946 void ciEnv::register_method(ciMethod* target,
947 int entry_bci,
948 CodeOffsets* offsets,
949 int orig_pc_offset,
950 CodeBuffer* code_buffer,
951 int frame_words,
952 OopMapSet* oop_map_set,
953 ExceptionHandlerTable* handler_table,
954 ImplicitExceptionTable* inc_table,
955 AbstractCompiler* compiler,
956 bool has_unsafe_access,
957 bool has_wide_vectors,
958 RTMState rtm_state) {
959 VM_ENTRY_MARK;
960 nmethod* nm = NULL;
961 {
962 // To prevent compile queue updates.
963 MutexLocker locker(MethodCompileQueue_lock, THREAD);
964
965 // Prevent SystemDictionary::add_to_hierarchy from running
966 // and invalidating our dependencies until we install this method.
967 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
968 MutexLocker ml(Compile_lock);
969 NoSafepointVerifier nsv;
970
971 // Change in Jvmti state may invalidate compilation.
972 if (!failing() && jvmti_state_changed()) {
973 record_failure("Jvmti state change invalidated dependencies");
974 }
975
976 // Change in DTrace flags may invalidate compilation.
977 if (!failing() &&
978 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
979 (!dtrace_method_probes() && DTraceMethodProbes) ||
980 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
981 record_failure("DTrace flags change invalidated dependencies");
982 }
983
984 if (!failing()) {
985 if (log() != NULL) {
986 // Log the dependencies which this compilation declares.
987 dependencies()->log_all_dependencies();
988 }
989
990 // Encode the dependencies now, so we can check them right away.
991 dependencies()->encode_content_bytes();
992
993 // Check for {class loads, evolution, breakpoints, ...} during compilation
994 validate_compile_task_dependencies(target);
995 }
996
997 methodHandle method(THREAD, target->get_Method());
998
999 #if INCLUDE_RTM_OPT
1000 if (!failing() && (rtm_state != NoRTM) &&
1001 (method()->method_data() != NULL) &&
1002 (method()->method_data()->rtm_state() != rtm_state)) {
1003 // Preemptive decompile if rtm state was changed.
1004 record_failure("RTM state change invalidated rtm code");
1005 }
1006 #endif
1007
1008 if (failing()) {
1009 // While not a true deoptimization, it is a preemptive decompile.
1010 MethodData* mdo = method()->method_data();
1011 if (mdo != NULL && _inc_decompile_count_on_failure) {
1012 mdo->inc_decompile_count();
1013 }
1014
1015 // All buffers in the CodeBuffer are allocated in the CodeCache.
1016 // If the code buffer is created on each compile attempt
1017 // as in C2, then it must be freed.
1018 code_buffer->free_blob();
1019 return;
1020 }
1021
1022 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1023 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1024
1025 nm = nmethod::new_nmethod(method,
1026 compile_id(),
1027 entry_bci,
1028 offsets,
1029 orig_pc_offset,
1030 debug_info(), dependencies(), code_buffer,
1031 frame_words, oop_map_set,
1032 handler_table, inc_table,
1033 compiler, task()->comp_level());
1034
1035 // Free codeBlobs
1036 code_buffer->free_blob();
1037
1038 if (nm != NULL) {
1039 nm->set_has_unsafe_access(has_unsafe_access);
1040 nm->set_has_wide_vectors(has_wide_vectors);
1041 #if INCLUDE_RTM_OPT
1042 nm->set_rtm_state(rtm_state);
1043 #endif
1044
1045 // Record successful registration.
1046 // (Put nm into the task handle *before* publishing to the Java heap.)
1047 if (task() != NULL) {
1048 task()->set_code(nm);
1049 }
1050
1051 if (entry_bci == InvocationEntryBci) {
1052 if (TieredCompilation) {
1053 // If there is an old version we're done with it
1054 CompiledMethod* old = method->code();
1055 if (TraceMethodReplacement && old != NULL) {
1056 ResourceMark rm;
1057 char *method_name = method->name_and_sig_as_C_string();
1058 tty->print_cr("Replacing method %s", method_name);
1059 }
1060 if (old != NULL) {
1061 old->make_not_used();
1062 }
1063 }
1064 if (TraceNMethodInstalls) {
1065 ResourceMark rm;
1066 char *method_name = method->name_and_sig_as_C_string();
1067 ttyLocker ttyl;
1068 tty->print_cr("Installing method (%d) %s ",
1069 task()->comp_level(),
1070 method_name);
1071 }
1072 // Allow the code to be executed
1073 method->set_code(method, nm);
1074 } else {
1075 if (TraceNMethodInstalls) {
1076 ResourceMark rm;
1077 char *method_name = method->name_and_sig_as_C_string();
1078 ttyLocker ttyl;
1079 tty->print_cr("Installing osr method (%d) %s @ %d",
1080 task()->comp_level(),
1081 method_name,
1082 entry_bci);
1083 }
1084 method->method_holder()->add_osr_nmethod(nm);
1085 }
1086 nm->make_in_use();
1087 }
1088 } // safepoints are allowed again
1089
1090 if (nm != NULL) {
1091 // JVMTI -- compiled method notification (must be done outside lock)
1092 nm->post_compiled_method_load_event();
1093 } else {
1094 // The CodeCache is full.
1095 record_failure("code cache is full");
1096 }
1097 }
1098
1099
1100 // ------------------------------------------------------------------
1101 // ciEnv::find_system_klass
1102 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1103 VM_ENTRY_MARK;
1104 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1105 }
1106
1107 // ------------------------------------------------------------------
1108 // ciEnv::comp_level
1109 int ciEnv::comp_level() {
1110 if (task() == NULL) return CompLevel_highest_tier;
1111 return task()->comp_level();
1112 }
1113
1114 // ------------------------------------------------------------------
1115 // ciEnv::compile_id
1116 uint ciEnv::compile_id() {
1117 if (task() == NULL) return 0;
1118 return task()->compile_id();
1119 }
1120
1121 // ------------------------------------------------------------------
1122 // ciEnv::notice_inlined_method()
1123 void ciEnv::notice_inlined_method(ciMethod* method) {
1124 _num_inlined_bytecodes += method->code_size_for_inlining();
1125 }
1126
1127 // ------------------------------------------------------------------
1128 // ciEnv::num_inlined_bytecodes()
1129 int ciEnv::num_inlined_bytecodes() const {
1130 return _num_inlined_bytecodes;
1131 }
1132
1133 // ------------------------------------------------------------------
1134 // ciEnv::record_failure()
1135 void ciEnv::record_failure(const char* reason) {
1136 if (_failure_reason == NULL) {
1137 // Record the first failure reason.
1138 _failure_reason = reason;
1139 }
1140 }
1141
1142 void ciEnv::report_failure(const char* reason) {
1143 EventCompilationFailure event;
1144 if (event.should_commit()) {
1145 event.set_compileId(compile_id());
1146 event.set_failureMessage(reason);
1147 event.commit();
1148 }
1149 }
1150
1151 // ------------------------------------------------------------------
1152 // ciEnv::record_method_not_compilable()
1153 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1154 int new_compilable =
1155 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1156
1157 // Only note transitions to a worse state
1158 if (new_compilable > _compilable) {
1159 if (log() != NULL) {
1160 if (all_tiers) {
1161 log()->elem("method_not_compilable");
1162 } else {
1163 log()->elem("method_not_compilable_at_tier level='%d'",
1164 current()->task()->comp_level());
1165 }
1166 }
1167 _compilable = new_compilable;
1168
1169 // Reset failure reason; this one is more important.
1170 _failure_reason = NULL;
1171 record_failure(reason);
1172 }
1173 }
1174
1175 // ------------------------------------------------------------------
1176 // ciEnv::record_out_of_memory_failure()
1177 void ciEnv::record_out_of_memory_failure() {
1178 // If memory is low, we stop compiling methods.
1179 record_method_not_compilable("out of memory");
1180 }
1181
1182 ciInstance* ciEnv::unloaded_ciinstance() {
1183 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1184 }
1185
1186 // ------------------------------------------------------------------
1187 // ciEnv::dump_replay_data*
1188
1189 // Don't change thread state and acquire any locks.
1190 // Safe to call from VM error reporter.
1191
1192 void ciEnv::dump_compile_data(outputStream* out) {
1193 CompileTask* task = this->task();
1194 if (task) {
1195 Method* method = task->method();
1196 int entry_bci = task->osr_bci();
1197 int comp_level = task->comp_level();
1198 out->print("compile %s %s %s %d %d",
1199 method->klass_name()->as_quoted_ascii(),
1200 method->name()->as_quoted_ascii(),
1201 method->signature()->as_quoted_ascii(),
1202 entry_bci, comp_level);
1203 if (compiler_data() != NULL) {
1204 if (is_c2_compile(comp_level)) {
1205 #ifdef COMPILER2
1206 // Dump C2 inlining data.
1207 ((Compile*)compiler_data())->dump_inline_data(out);
1208 #endif
1209 } else if (is_c1_compile(comp_level)) {
1210 #ifdef COMPILER1
1211 // Dump C1 inlining data.
1212 ((Compilation*)compiler_data())->dump_inline_data(out);
1213 #endif
1214 }
1215 }
1216 out->cr();
1217 }
1218 }
1219
1220 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1221 ResourceMark rm;
1222 #if INCLUDE_JVMTI
1223 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1224 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1225 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1226 #endif // INCLUDE_JVMTI
1227
1228 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1229 out->print_cr("# %d ciObject found", objects->length());
1230 for (int i = 0; i < objects->length(); i++) {
1231 objects->at(i)->dump_replay_data(out);
1232 }
1233 dump_compile_data(out);
1234 out->flush();
1235 }
1236
1237 void ciEnv::dump_replay_data(outputStream* out) {
1238 GUARDED_VM_ENTRY(
1239 MutexLocker ml(Compile_lock);
1240 dump_replay_data_unsafe(out);
1241 )
1242 }
1243
1244 void ciEnv::dump_replay_data(int compile_id) {
1245 static char buffer[O_BUFLEN];
1246 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1247 if (ret > 0) {
1248 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1249 if (fd != -1) {
1250 FILE* replay_data_file = os::open(fd, "w");
1251 if (replay_data_file != NULL) {
1252 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1253 dump_replay_data(&replay_data_stream);
1254 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1255 } else {
1256 tty->print_cr("# Can't open file to dump replay data.");
1257 }
1258 }
1259 }
1260 }
1261
1262 void ciEnv::dump_inline_data(int compile_id) {
1263 static char buffer[O_BUFLEN];
1264 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1265 if (ret > 0) {
1266 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1267 if (fd != -1) {
1268 FILE* inline_data_file = os::open(fd, "w");
1269 if (inline_data_file != NULL) {
1270 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1271 GUARDED_VM_ENTRY(
1272 MutexLocker ml(Compile_lock);
1273 dump_compile_data(&replay_data_stream);
1274 )
1275 replay_data_stream.flush();
1276 tty->print("# Compiler inline data is saved as: ");
1277 tty->print_cr("%s", buffer);
1278 } else {
1279 tty->print_cr("# Can't open file to dump inline data.");
1280 }
1281 }
1282 }
1283 }