1 /*
2 * Copyright (c) 1999, 2018, 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.hpp"
36 #include "ci/ciValueKlass.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 "memory/allocation.inline.hpp"
47 #include "memory/oopFactory.hpp"
48 #include "memory/resourceArea.hpp"
49 #include "memory/universe.inline.hpp"
50 #include "oops/methodData.hpp"
51 #include "oops/objArrayKlass.hpp"
52 #include "oops/objArrayOop.inline.hpp"
53 #include "oops/oop.inline.hpp"
54 #include "prims/jvmtiExport.hpp"
55 #include "runtime/init.hpp"
56 #include "runtime/reflection.hpp"
57 #include "runtime/sharedRuntime.hpp"
58 #include "runtime/thread.inline.hpp"
59 #include "trace/tracing.hpp"
60 #include "utilities/dtrace.hpp"
61 #include "utilities/macros.hpp"
62 #ifdef COMPILER1
63 #include "c1/c1_Runtime1.hpp"
64 #endif
65 #ifdef COMPILER2
66 #include "opto/runtime.hpp"
67 #endif
68
69 // ciEnv
70 //
71 // This class is the top level broker for requests from the compiler
72 // to the VM.
73
74 ciObject* ciEnv::_null_object_instance;
75
76 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL;
77 WK_KLASSES_DO(WK_KLASS_DEFN)
78 #undef WK_KLASS_DEFN
79
80 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
81 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
82 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
83
84 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
85 jobject ciEnv::_ArrayStoreException_handle = NULL;
86 jobject ciEnv::_ClassCastException_handle = NULL;
87
88 #ifndef PRODUCT
89 static bool firstEnv = true;
90 #endif /* PRODUCT */
91
92 // ------------------------------------------------------------------
93 // ciEnv::ciEnv
94 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
95 : _ciEnv_arena(mtCompiler) {
96 VM_ENTRY_MARK;
97
98 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
99 thread->set_env(this);
100 assert(ciEnv::current() == this, "sanity");
101
102 _oop_recorder = NULL;
103 _debug_info = NULL;
104 _dependencies = NULL;
105 _failure_reason = NULL;
106 _inc_decompile_count_on_failure = true;
107 _compilable = MethodCompilable;
108 _break_at_compile = false;
109 _compiler_data = NULL;
110 #ifndef PRODUCT
111 assert(!firstEnv, "not initialized properly");
112 #endif /* !PRODUCT */
113
114 _system_dictionary_modification_counter = system_dictionary_modification_counter;
115 _num_inlined_bytecodes = 0;
116 assert(task == NULL || thread->task() == task, "sanity");
117 _task = task;
118 _log = NULL;
119
120 // Temporary buffer for creating symbols and such.
121 _name_buffer = NULL;
122 _name_buffer_len = 0;
123
124 _arena = &_ciEnv_arena;
125 _factory = new (_arena) ciObjectFactory(_arena, 128);
126
127 // Preload commonly referenced system ciObjects.
128
129 // During VM initialization, these instances have not yet been created.
130 // Assertions ensure that these instances are not accessed before
131 // their initialization.
132
133 assert(Universe::is_fully_initialized(), "should be complete");
134
135 oop o = Universe::null_ptr_exception_instance();
136 assert(o != NULL, "should have been initialized");
137 _NullPointerException_instance = get_object(o)->as_instance();
138 o = Universe::arithmetic_exception_instance();
139 assert(o != NULL, "should have been initialized");
140 _ArithmeticException_instance = get_object(o)->as_instance();
141
142 _ArrayIndexOutOfBoundsException_instance = NULL;
143 _ArrayStoreException_instance = NULL;
144 _ClassCastException_instance = NULL;
145 _the_null_string = NULL;
146 _the_min_jint_string = NULL;
147
148 _jvmti_can_hotswap_or_post_breakpoint = false;
149 _jvmti_can_access_local_variables = false;
150 _jvmti_can_post_on_exceptions = false;
151 _jvmti_can_pop_frame = false;
152 }
153
154 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
155 ASSERT_IN_VM;
156
157 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
158 CompilerThread* current_thread = CompilerThread::current();
159 assert(current_thread->env() == NULL, "must be");
160 current_thread->set_env(this);
161 assert(ciEnv::current() == this, "sanity");
162
163 _oop_recorder = NULL;
164 _debug_info = NULL;
165 _dependencies = NULL;
166 _failure_reason = NULL;
167 _inc_decompile_count_on_failure = true;
168 _compilable = MethodCompilable_never;
169 _break_at_compile = false;
170 _compiler_data = NULL;
171 #ifndef PRODUCT
172 assert(firstEnv, "must be first");
173 firstEnv = false;
174 #endif /* !PRODUCT */
175
176 _system_dictionary_modification_counter = 0;
177 _num_inlined_bytecodes = 0;
178 _task = NULL;
179 _log = NULL;
180
181 // Temporary buffer for creating symbols and such.
182 _name_buffer = NULL;
183 _name_buffer_len = 0;
184
185 _arena = arena;
186 _factory = new (_arena) ciObjectFactory(_arena, 128);
187
188 // Preload commonly referenced system ciObjects.
189
190 // During VM initialization, these instances have not yet been created.
191 // Assertions ensure that these instances are not accessed before
192 // their initialization.
193
194 assert(Universe::is_fully_initialized(), "must be");
195
196 _NullPointerException_instance = NULL;
197 _ArithmeticException_instance = NULL;
198 _ArrayIndexOutOfBoundsException_instance = NULL;
199 _ArrayStoreException_instance = NULL;
200 _ClassCastException_instance = NULL;
201 _the_null_string = NULL;
202 _the_min_jint_string = NULL;
203
204 _jvmti_can_hotswap_or_post_breakpoint = false;
205 _jvmti_can_access_local_variables = false;
206 _jvmti_can_post_on_exceptions = false;
207 _jvmti_can_pop_frame = false;
208 }
209
210 ciEnv::~ciEnv() {
211 GUARDED_VM_ENTRY(
212 CompilerThread* current_thread = CompilerThread::current();
213 _factory->remove_symbols();
214 // Need safepoint to clear the env on the thread. RedefineClasses might
215 // be reading it.
216 current_thread->set_env(NULL);
217 )
218 }
219
220 // ------------------------------------------------------------------
221 // Cache Jvmti state
222 void ciEnv::cache_jvmti_state() {
223 VM_ENTRY_MARK;
224 // Get Jvmti capabilities under lock to get consistant values.
225 MutexLocker mu(JvmtiThreadState_lock);
226 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
227 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
228 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
229 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
230 }
231
232 bool ciEnv::should_retain_local_variables() const {
233 return _jvmti_can_access_local_variables || _jvmti_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 if (elem_klass->is_valuetype() && elem_klass->as_value_klass()->flatten_array()) {
469 return ciValueArrayKlass::make_impl(elem_klass);
470 } else {
471 return ciObjArrayKlass::make_impl(elem_klass);
472 }
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 int i = 0;
499 while (sym->byte_at(i) == '[') {
500 i++;
501 }
502 return get_unloaded_klass(accessing_klass, name);
503 }
504
505 // ------------------------------------------------------------------
506 // ciEnv::get_klass_by_name
507 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
508 ciSymbol* klass_name,
509 bool require_local) {
510 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
511 constantPoolHandle(),
512 klass_name,
513 require_local);)
514 }
515
516 // ------------------------------------------------------------------
517 // ciEnv::get_klass_by_index_impl
518 //
519 // Implementation of get_klass_by_index.
520 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
521 int index,
522 bool& is_accessible,
523 ciInstanceKlass* accessor) {
524 EXCEPTION_CONTEXT;
525 Klass* klass = NULL;
526 Symbol* klass_name = NULL;
527
528 if (cpool->tag_at(index).is_symbol()) {
529 klass_name = cpool->symbol_at(index);
530 } else {
531 // Check if it's resolved if it's not a symbol constant pool entry.
532 klass = ConstantPool::klass_at_if_loaded(cpool, index);
533 // Try to look it up by name.
534 if (klass == NULL) {
535 klass_name = cpool->klass_name_at(index);
536 }
537 }
538
539 if (klass == NULL) {
540 // Not found in constant pool. Use the name to do the lookup.
541 ciKlass* k = get_klass_by_name_impl(accessor,
542 cpool,
543 get_symbol(klass_name),
544 false);
545 // Calculate accessibility the hard way.
546 if (!k->is_loaded()) {
547 is_accessible = false;
548 } else if (k->loader() != accessor->loader() &&
549 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
550 // Loaded only remotely. Not linked yet.
551 is_accessible = false;
552 } else {
553 // Linked locally, and we must also check public/private, etc.
554 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
555 }
556 return k;
557 }
558
559 // Check for prior unloaded klass. The SystemDictionary's answers
560 // can vary over time but the compiler needs consistency.
561 ciSymbol* name = get_symbol(klass->name());
562 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
563 if (unloaded_klass != NULL) {
564 is_accessible = false;
565 return unloaded_klass;
566 }
567
568 // It is known to be accessible, since it was found in the constant pool.
569 is_accessible = true;
570 return get_klass(klass);
571 }
572
573 // ------------------------------------------------------------------
574 // ciEnv::get_klass_by_index
575 //
576 // Get a klass from the constant pool.
577 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
578 int index,
579 bool& is_accessible,
580 ciInstanceKlass* accessor) {
581 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
582 }
583
584 // ------------------------------------------------------------------
585 // ciEnv::get_constant_by_index_impl
586 //
587 // Implementation of get_constant_by_index().
588 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
589 int pool_index, int cache_index,
590 ciInstanceKlass* accessor) {
591 bool ignore_will_link;
592 EXCEPTION_CONTEXT;
593 int index = pool_index;
594 if (cache_index >= 0) {
595 assert(index < 0, "only one kind of index at a time");
596 index = cpool->object_to_cp_index(cache_index);
597 oop obj = cpool->resolved_references()->obj_at(cache_index);
598 if (obj != NULL) {
599 if (obj == Universe::the_null_sentinel()) {
600 return ciConstant(T_OBJECT, get_object(NULL));
601 }
602 BasicType bt = T_OBJECT;
603 if (cpool->tag_at(index).is_dynamic_constant())
604 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index));
605 if (is_reference_type(bt)) {
606 } else {
607 // we have to unbox the primitive value
608 if (!is_java_primitive(bt)) return ciConstant();
609 jvalue value;
610 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
611 assert(bt2 == bt, "");
612 switch (bt2) {
613 case T_DOUBLE: return ciConstant(value.d);
614 case T_FLOAT: return ciConstant(value.f);
615 case T_LONG: return ciConstant(value.j);
616 case T_INT: return ciConstant(bt2, value.i);
617 case T_SHORT: return ciConstant(bt2, value.s);
618 case T_BYTE: return ciConstant(bt2, value.b);
619 case T_CHAR: return ciConstant(bt2, value.c);
620 case T_BOOLEAN: return ciConstant(bt2, value.z);
621 default: return ciConstant();
622 }
623 }
624 ciObject* ciobj = get_object(obj);
625 if (ciobj->is_array()) {
626 return ciConstant(T_ARRAY, ciobj);
627 } else {
628 assert(ciobj->is_instance(), "should be an instance");
629 return ciConstant(T_OBJECT, ciobj);
630 }
631 }
632 }
633 constantTag tag = cpool->tag_at(index);
634 if (tag.is_int()) {
635 return ciConstant(T_INT, (jint)cpool->int_at(index));
636 } else if (tag.is_long()) {
637 return ciConstant((jlong)cpool->long_at(index));
638 } else if (tag.is_float()) {
639 return ciConstant((jfloat)cpool->float_at(index));
640 } else if (tag.is_double()) {
641 return ciConstant((jdouble)cpool->double_at(index));
642 } else if (tag.is_string()) {
643 oop string = NULL;
644 assert(cache_index >= 0, "should have a cache index");
645 if (cpool->is_pseudo_string_at(index)) {
646 string = cpool->pseudo_string_at(index, cache_index);
647 } else {
648 string = cpool->string_at(index, cache_index, THREAD);
649 if (HAS_PENDING_EXCEPTION) {
650 CLEAR_PENDING_EXCEPTION;
651 record_out_of_memory_failure();
652 return ciConstant();
653 }
654 }
655 ciObject* constant = get_object(string);
656 if (constant->is_array()) {
657 return ciConstant(T_ARRAY, constant);
658 } else {
659 assert (constant->is_instance(), "must be an instance, or not? ");
660 return ciConstant(T_OBJECT, constant);
661 }
662 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
663 // 4881222: allow ldc to take a class type
664 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
665 if (HAS_PENDING_EXCEPTION) {
666 CLEAR_PENDING_EXCEPTION;
667 record_out_of_memory_failure();
668 return ciConstant();
669 }
670 assert (klass->is_instance_klass() || klass->is_array_klass(),
671 "must be an instance or array klass ");
672 return ciConstant(T_OBJECT, klass->java_mirror());
673 } else if (tag.is_method_type()) {
674 // must execute Java code to link this CP entry into cache[i].f1
675 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
676 ciObject* ciobj = get_unloaded_method_type_constant(signature);
677 return ciConstant(T_OBJECT, ciobj);
678 } else if (tag.is_method_handle()) {
679 // must execute Java code to link this CP entry into cache[i].f1
680 int ref_kind = cpool->method_handle_ref_kind_at(index);
681 int callee_index = cpool->method_handle_klass_index_at(index);
682 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
683 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
684 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
685 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
686 return ciConstant(T_OBJECT, ciobj);
687 } else if (tag.is_dynamic_constant()) {
688 return ciConstant();
689 } else {
690 ShouldNotReachHere();
691 return ciConstant();
692 }
693 }
694
695 // ------------------------------------------------------------------
696 // ciEnv::get_constant_by_index
697 //
698 // Pull a constant out of the constant pool. How appropriate.
699 //
700 // Implementation note: this query is currently in no way cached.
701 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
702 int pool_index, int cache_index,
703 ciInstanceKlass* accessor) {
704 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
705 }
706
707 // ------------------------------------------------------------------
708 // ciEnv::get_field_by_index_impl
709 //
710 // Implementation of get_field_by_index.
711 //
712 // Implementation note: the results of field lookups are cached
713 // in the accessor klass.
714 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
715 int index) {
716 ciConstantPoolCache* cache = accessor->field_cache();
717 if (cache == NULL) {
718 ciField* field = new (arena()) ciField(accessor, index);
719 return field;
720 } else {
721 ciField* field = (ciField*)cache->get(index);
722 if (field == NULL) {
723 field = new (arena()) ciField(accessor, index);
724 cache->insert(index, field);
725 }
726 return field;
727 }
728 }
729
730 // ------------------------------------------------------------------
731 // ciEnv::get_field_by_index
732 //
733 // Get a field by index from a klass's constant pool.
734 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
735 int index) {
736 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
737 }
738
739 // ------------------------------------------------------------------
740 // ciEnv::lookup_method
741 //
742 // Perform an appropriate method lookup based on accessor, holder,
743 // name, signature, and bytecode.
744 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
745 ciKlass* holder,
746 Symbol* name,
747 Symbol* sig,
748 Bytecodes::Code bc,
749 constantTag tag) {
750 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
751 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
752
753 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
754 Klass* holder_klass = holder->get_Klass();
755 methodHandle dest_method;
756 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
757 switch (bc) {
758 case Bytecodes::_invokestatic:
759 dest_method =
760 LinkResolver::resolve_static_call_or_null(link_info);
761 break;
762 case Bytecodes::_invokespecial:
763 dest_method =
764 LinkResolver::resolve_special_call_or_null(link_info);
765 break;
766 case Bytecodes::_invokeinterface:
767 dest_method =
768 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
769 break;
770 case Bytecodes::_invokevirtual:
771 dest_method =
772 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
773 break;
774 default: ShouldNotReachHere();
775 }
776
777 return dest_method();
778 }
779
780
781 // ------------------------------------------------------------------
782 // ciEnv::get_method_by_index_impl
783 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
784 int index, Bytecodes::Code bc,
785 ciInstanceKlass* accessor) {
786 if (bc == Bytecodes::_invokedynamic) {
787 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
788 bool is_resolved = !cpce->is_f1_null();
789 // FIXME: code generation could allow for null (unlinked) call site
790 // The call site could be made patchable as follows:
791 // Load the appendix argument from the constant pool.
792 // Test the appendix argument and jump to a known deopt routine if it is null.
793 // Jump through a patchable call site, which is initially a deopt routine.
794 // Patch the call site to the nmethod entry point of the static compiled lambda form.
795 // As with other two-component call sites, both values must be independently verified.
796
797 if (is_resolved) {
798 // Get the invoker Method* from the constant pool.
799 // (The appendix argument, if any, will be noted in the method's signature.)
800 Method* adapter = cpce->f1_as_method();
801 return get_method(adapter);
802 }
803
804 // Fake a method that is equivalent to a declared method.
805 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
806 ciSymbol* name = ciSymbol::invokeBasic_name();
807 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
808 return get_unloaded_method(holder, name, signature, accessor);
809 } else {
810 const int holder_index = cpool->klass_ref_index_at(index);
811 bool holder_is_accessible;
812 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
813
814 // Get the method's name and signature.
815 Symbol* name_sym = cpool->name_ref_at(index);
816 Symbol* sig_sym = cpool->signature_ref_at(index);
817
818 if (cpool->has_preresolution()
819 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
820 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
821 // Short-circuit lookups for JSR 292-related call sites.
822 // That is, do not rely only on name-based lookups, because they may fail
823 // if the names are not resolvable in the boot class loader (7056328).
824 switch (bc) {
825 case Bytecodes::_invokevirtual:
826 case Bytecodes::_invokeinterface:
827 case Bytecodes::_invokespecial:
828 case Bytecodes::_invokestatic:
829 {
830 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
831 if (m != NULL) {
832 return get_method(m);
833 }
834 }
835 break;
836 default:
837 break;
838 }
839 }
840
841 if (holder_is_accessible) { // Our declared holder is loaded.
842 constantTag tag = cpool->tag_ref_at(index);
843 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
844 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
845 if (m != NULL &&
846 (bc == Bytecodes::_invokestatic
847 ? m->method_holder()->is_not_initialized()
848 : !m->method_holder()->is_loaded())) {
849 m = NULL;
850 }
851 #ifdef ASSERT
852 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
853 m = NULL;
854 }
855 #endif
856 if (m != NULL) {
857 // We found the method.
858 return get_method(m);
859 }
860 }
861
862 // Either the declared holder was not loaded, or the method could
863 // not be found. Create a dummy ciMethod to represent the failed
864 // lookup.
865 ciSymbol* name = get_symbol(name_sym);
866 ciSymbol* signature = get_symbol(sig_sym);
867 return get_unloaded_method(holder, name, signature, accessor);
868 }
869 }
870
871
872 // ------------------------------------------------------------------
873 // ciEnv::get_instance_klass_for_declared_method_holder
874 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
875 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
876 // instead of a ciInstanceKlass. For that case simply pretend that the
877 // declared holder is Object.clone since that's where the call will bottom out.
878 // A more correct fix would trickle out through many interfaces in CI,
879 // requiring ciInstanceKlass* to become ciKlass* and many more places would
880 // require checks to make sure the expected type was found. Given that this
881 // only occurs for clone() the more extensive fix seems like overkill so
882 // instead we simply smear the array type into Object.
883 guarantee(method_holder != NULL, "no method holder");
884 if (method_holder->is_instance_klass()) {
885 return method_holder->as_instance_klass();
886 } else if (method_holder->is_array_klass()) {
887 return current()->Object_klass();
888 } else {
889 ShouldNotReachHere();
890 }
891 return NULL;
892 }
893
894
895 // ------------------------------------------------------------------
896 // ciEnv::get_method_by_index
897 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
898 int index, Bytecodes::Code bc,
899 ciInstanceKlass* accessor) {
900 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
901 }
902
903
904 // ------------------------------------------------------------------
905 // ciEnv::name_buffer
906 char *ciEnv::name_buffer(int req_len) {
907 if (_name_buffer_len < req_len) {
908 if (_name_buffer == NULL) {
909 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
910 _name_buffer_len = req_len;
911 } else {
912 _name_buffer =
913 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
914 _name_buffer_len = req_len;
915 }
916 }
917 return _name_buffer;
918 }
919
920 // ------------------------------------------------------------------
921 // ciEnv::is_in_vm
922 bool ciEnv::is_in_vm() {
923 return JavaThread::current()->thread_state() == _thread_in_vm;
924 }
925
926 bool ciEnv::system_dictionary_modification_counter_changed() {
927 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
928 }
929
930 // ------------------------------------------------------------------
931 // ciEnv::validate_compile_task_dependencies
932 //
933 // Check for changes during compilation (e.g. class loads, evolution,
934 // breakpoints, call site invalidation).
935 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
936 if (failing()) return; // no need for further checks
937
938 bool counter_changed = system_dictionary_modification_counter_changed();
939 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed);
940 if (result != Dependencies::end_marker) {
941 if (result == Dependencies::call_site_target_value) {
942 _inc_decompile_count_on_failure = false;
943 record_failure("call site target change");
944 } else if (Dependencies::is_klass_type(result)) {
945 record_failure("invalid non-klass dependency");
946 } else {
947 record_failure("concurrent class loading");
948 }
949 }
950 }
951
952 // ------------------------------------------------------------------
953 // ciEnv::register_method
954 void ciEnv::register_method(ciMethod* target,
955 int entry_bci,
956 CodeOffsets* offsets,
957 int orig_pc_offset,
958 CodeBuffer* code_buffer,
959 int frame_words,
960 OopMapSet* oop_map_set,
961 ExceptionHandlerTable* handler_table,
962 ImplicitExceptionTable* inc_table,
963 AbstractCompiler* compiler,
964 bool has_unsafe_access,
965 bool has_wide_vectors,
966 RTMState rtm_state) {
967 VM_ENTRY_MARK;
968 nmethod* nm = NULL;
969 {
970 // To prevent compile queue updates.
971 MutexLocker locker(MethodCompileQueue_lock, THREAD);
972
973 // Prevent SystemDictionary::add_to_hierarchy from running
974 // and invalidating our dependencies until we install this method.
975 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
976 MutexLocker ml(Compile_lock);
977 NoSafepointVerifier nsv;
978
979 // Change in Jvmti state may invalidate compilation.
980 if (!failing() && jvmti_state_changed()) {
981 record_failure("Jvmti state change invalidated dependencies");
982 }
983
984 // Change in DTrace flags may invalidate compilation.
985 if (!failing() &&
986 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
987 (!dtrace_method_probes() && DTraceMethodProbes) ||
988 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
989 record_failure("DTrace flags change invalidated dependencies");
990 }
991
992 if (!failing()) {
993 if (log() != NULL) {
994 // Log the dependencies which this compilation declares.
995 dependencies()->log_all_dependencies();
996 }
997
998 // Encode the dependencies now, so we can check them right away.
999 dependencies()->encode_content_bytes();
1000
1001 // Check for {class loads, evolution, breakpoints, ...} during compilation
1002 validate_compile_task_dependencies(target);
1003 }
1004
1005 methodHandle method(THREAD, target->get_Method());
1006
1007 #if INCLUDE_RTM_OPT
1008 if (!failing() && (rtm_state != NoRTM) &&
1009 (method()->method_data() != NULL) &&
1010 (method()->method_data()->rtm_state() != rtm_state)) {
1011 // Preemptive decompile if rtm state was changed.
1012 record_failure("RTM state change invalidated rtm code");
1013 }
1014 #endif
1015
1016 if (failing()) {
1017 // While not a true deoptimization, it is a preemptive decompile.
1018 MethodData* mdo = method()->method_data();
1019 if (mdo != NULL && _inc_decompile_count_on_failure) {
1020 mdo->inc_decompile_count();
1021 }
1022
1023 // All buffers in the CodeBuffer are allocated in the CodeCache.
1024 // If the code buffer is created on each compile attempt
1025 // as in C2, then it must be freed.
1026 code_buffer->free_blob();
1027 return;
1028 }
1029
1030 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1031 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1032
1033 nm = nmethod::new_nmethod(method,
1034 compile_id(),
1035 entry_bci,
1036 offsets,
1037 orig_pc_offset,
1038 debug_info(), dependencies(), code_buffer,
1039 frame_words, oop_map_set,
1040 handler_table, inc_table,
1041 compiler, task()->comp_level());
1042
1043 // Free codeBlobs
1044 code_buffer->free_blob();
1045
1046 if (nm != NULL) {
1047 nm->set_has_unsafe_access(has_unsafe_access);
1048 nm->set_has_wide_vectors(has_wide_vectors);
1049 #if INCLUDE_RTM_OPT
1050 nm->set_rtm_state(rtm_state);
1051 #endif
1052
1053 // Record successful registration.
1054 // (Put nm into the task handle *before* publishing to the Java heap.)
1055 if (task() != NULL) {
1056 task()->set_code(nm);
1057 }
1058
1059 if (entry_bci == InvocationEntryBci) {
1060 if (TieredCompilation) {
1061 // If there is an old version we're done with it
1062 CompiledMethod* old = method->code();
1063 if (TraceMethodReplacement && old != NULL) {
1064 ResourceMark rm;
1065 char *method_name = method->name_and_sig_as_C_string();
1066 tty->print_cr("Replacing method %s", method_name);
1067 }
1068 if (old != NULL) {
1069 old->make_not_used();
1070 }
1071 }
1072 if (TraceNMethodInstalls) {
1073 ResourceMark rm;
1074 char *method_name = method->name_and_sig_as_C_string();
1075 ttyLocker ttyl;
1076 tty->print_cr("Installing method (%d) %s ",
1077 task()->comp_level(),
1078 method_name);
1079 }
1080 // Allow the code to be executed
1081 method->set_code(method, nm);
1082 } else {
1083 if (TraceNMethodInstalls) {
1084 ResourceMark rm;
1085 char *method_name = method->name_and_sig_as_C_string();
1086 ttyLocker ttyl;
1087 tty->print_cr("Installing osr method (%d) %s @ %d",
1088 task()->comp_level(),
1089 method_name,
1090 entry_bci);
1091 }
1092 method->method_holder()->add_osr_nmethod(nm);
1093 }
1094 nm->make_in_use();
1095 }
1096 } // safepoints are allowed again
1097
1098 if (nm != NULL) {
1099 // JVMTI -- compiled method notification (must be done outside lock)
1100 nm->post_compiled_method_load_event();
1101 } else {
1102 // The CodeCache is full.
1103 record_failure("code cache is full");
1104 }
1105 }
1106
1107
1108 // ------------------------------------------------------------------
1109 // ciEnv::find_system_klass
1110 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1111 VM_ENTRY_MARK;
1112 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1113 }
1114
1115 // ------------------------------------------------------------------
1116 // ciEnv::comp_level
1117 int ciEnv::comp_level() {
1118 if (task() == NULL) return CompLevel_highest_tier;
1119 return task()->comp_level();
1120 }
1121
1122 // ------------------------------------------------------------------
1123 // ciEnv::compile_id
1124 uint ciEnv::compile_id() {
1125 if (task() == NULL) return 0;
1126 return task()->compile_id();
1127 }
1128
1129 // ------------------------------------------------------------------
1130 // ciEnv::notice_inlined_method()
1131 void ciEnv::notice_inlined_method(ciMethod* method) {
1132 _num_inlined_bytecodes += method->code_size_for_inlining();
1133 }
1134
1135 // ------------------------------------------------------------------
1136 // ciEnv::num_inlined_bytecodes()
1137 int ciEnv::num_inlined_bytecodes() const {
1138 return _num_inlined_bytecodes;
1139 }
1140
1141 // ------------------------------------------------------------------
1142 // ciEnv::record_failure()
1143 void ciEnv::record_failure(const char* reason) {
1144 if (_failure_reason == NULL) {
1145 // Record the first failure reason.
1146 _failure_reason = reason;
1147 }
1148 }
1149
1150 void ciEnv::report_failure(const char* reason) {
1151 // Create and fire JFR event
1152 EventCompilationFailure event;
1153 if (event.should_commit()) {
1154 event.set_compileId(compile_id());
1155 event.set_failureMessage(reason);
1156 event.commit();
1157 }
1158 }
1159
1160 // ------------------------------------------------------------------
1161 // ciEnv::record_method_not_compilable()
1162 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1163 int new_compilable =
1164 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1165
1166 // Only note transitions to a worse state
1167 if (new_compilable > _compilable) {
1168 if (log() != NULL) {
1169 if (all_tiers) {
1170 log()->elem("method_not_compilable");
1171 } else {
1172 log()->elem("method_not_compilable_at_tier level='%d'",
1173 current()->task()->comp_level());
1174 }
1175 }
1176 _compilable = new_compilable;
1177
1178 // Reset failure reason; this one is more important.
1179 _failure_reason = NULL;
1180 record_failure(reason);
1181 }
1182 }
1183
1184 // ------------------------------------------------------------------
1185 // ciEnv::record_out_of_memory_failure()
1186 void ciEnv::record_out_of_memory_failure() {
1187 // If memory is low, we stop compiling methods.
1188 record_method_not_compilable("out of memory");
1189 }
1190
1191 ciInstance* ciEnv::unloaded_ciinstance() {
1192 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1193 }
1194
1195 // ------------------------------------------------------------------
1196 // ciEnv::dump_replay_data*
1197
1198 // Don't change thread state and acquire any locks.
1199 // Safe to call from VM error reporter.
1200
1201 void ciEnv::dump_compile_data(outputStream* out) {
1202 CompileTask* task = this->task();
1203 if (task) {
1204 Method* method = task->method();
1205 int entry_bci = task->osr_bci();
1206 int comp_level = task->comp_level();
1207 out->print("compile %s %s %s %d %d",
1208 method->klass_name()->as_quoted_ascii(),
1209 method->name()->as_quoted_ascii(),
1210 method->signature()->as_quoted_ascii(),
1211 entry_bci, comp_level);
1212 if (compiler_data() != NULL) {
1213 if (is_c2_compile(comp_level)) {
1214 #ifdef COMPILER2
1215 // Dump C2 inlining data.
1216 ((Compile*)compiler_data())->dump_inline_data(out);
1217 #endif
1218 } else if (is_c1_compile(comp_level)) {
1219 #ifdef COMPILER1
1220 // Dump C1 inlining data.
1221 ((Compilation*)compiler_data())->dump_inline_data(out);
1222 #endif
1223 }
1224 }
1225 out->cr();
1226 }
1227 }
1228
1229 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1230 ResourceMark rm;
1231 #if INCLUDE_JVMTI
1232 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1233 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1234 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1235 #endif // INCLUDE_JVMTI
1236
1237 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1238 out->print_cr("# %d ciObject found", objects->length());
1239 for (int i = 0; i < objects->length(); i++) {
1240 objects->at(i)->dump_replay_data(out);
1241 }
1242 dump_compile_data(out);
1243 out->flush();
1244 }
1245
1246 void ciEnv::dump_replay_data(outputStream* out) {
1247 GUARDED_VM_ENTRY(
1248 MutexLocker ml(Compile_lock);
1249 dump_replay_data_unsafe(out);
1250 )
1251 }
1252
1253 void ciEnv::dump_replay_data(int compile_id) {
1254 static char buffer[O_BUFLEN];
1255 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1256 if (ret > 0) {
1257 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1258 if (fd != -1) {
1259 FILE* replay_data_file = os::open(fd, "w");
1260 if (replay_data_file != NULL) {
1261 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1262 dump_replay_data(&replay_data_stream);
1263 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1264 } else {
1265 tty->print_cr("# Can't open file to dump replay data.");
1266 }
1267 }
1268 }
1269 }
1270
1271 void ciEnv::dump_inline_data(int compile_id) {
1272 static char buffer[O_BUFLEN];
1273 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1274 if (ret > 0) {
1275 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1276 if (fd != -1) {
1277 FILE* inline_data_file = os::open(fd, "w");
1278 if (inline_data_file != NULL) {
1279 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1280 GUARDED_VM_ENTRY(
1281 MutexLocker ml(Compile_lock);
1282 dump_compile_data(&replay_data_stream);
1283 )
1284 replay_data_stream.flush();
1285 tty->print("# Compiler inline data is saved as: ");
1286 tty->print_cr("%s", buffer);
1287 } else {
1288 tty->print_cr("# Can't open file to dump inline data.");
1289 }
1290 }
1291 }
1292 }