1 /*
2 * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "ci/ciConstant.hpp"
27 #include "ci/ciEnv.hpp"
28 #include "ci/ciField.hpp"
29 #include "ci/ciInstance.hpp"
30 #include "ci/ciInstanceKlass.hpp"
31 #include "ci/ciMethod.hpp"
32 #include "ci/ciNullObject.hpp"
33 #include "ci/ciReplay.hpp"
34 #include "ci/ciUtilities.hpp"
35 #include "classfile/systemDictionary.hpp"
36 #include "classfile/vmSymbols.hpp"
37 #include "code/codeCache.hpp"
38 #include "code/scopeDesc.hpp"
39 #include "compiler/compileBroker.hpp"
40 #include "compiler/compileLog.hpp"
41 #include "compiler/disassembler.hpp"
42 #include "gc/shared/collectedHeap.inline.hpp"
43 #include "interpreter/linkResolver.hpp"
44 #include "memory/allocation.inline.hpp"
45 #include "memory/oopFactory.hpp"
46 #include "memory/resourceArea.hpp"
47 #include "memory/universe.inline.hpp"
48 #include "oops/methodData.hpp"
49 #include "oops/objArrayKlass.hpp"
50 #include "oops/objArrayOop.inline.hpp"
51 #include "oops/oop.inline.hpp"
52 #include "prims/jvmtiExport.hpp"
53 #include "runtime/init.hpp"
54 #include "runtime/reflection.hpp"
55 #include "runtime/sharedRuntime.hpp"
56 #include "runtime/thread.inline.hpp"
57 #include "utilities/dtrace.hpp"
58 #include "utilities/macros.hpp"
59 #ifdef COMPILER1
60 #include "c1/c1_Runtime1.hpp"
61 #endif
62 #ifdef COMPILER2
63 #include "opto/runtime.hpp"
64 #endif
65 #if INCLUDE_TRACE
66 #include "trace/tracing.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 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 (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 oop obj = cpool->resolved_references()->obj_at(cache_index);
589 if (obj != NULL) {
590 ciObject* ciobj = get_object(obj);
591 if (ciobj->is_array()) {
592 return ciConstant(T_ARRAY, ciobj);
593 } else {
594 assert(ciobj->is_instance(), "should be an instance");
595 return ciConstant(T_OBJECT, ciobj);
596 }
597 }
598 index = cpool->object_to_cp_index(cache_index);
599 }
600 constantTag tag = cpool->tag_at(index);
601 if (tag.is_int()) {
602 return ciConstant(T_INT, (jint)cpool->int_at(index));
603 } else if (tag.is_long()) {
604 return ciConstant((jlong)cpool->long_at(index));
605 } else if (tag.is_float()) {
606 return ciConstant((jfloat)cpool->float_at(index));
607 } else if (tag.is_double()) {
608 return ciConstant((jdouble)cpool->double_at(index));
609 } else if (tag.is_string()) {
610 oop string = NULL;
611 assert(cache_index >= 0, "should have a cache index");
612 if (cpool->is_pseudo_string_at(index)) {
613 string = cpool->pseudo_string_at(index, cache_index);
614 } else {
615 string = cpool->string_at(index, cache_index, THREAD);
616 if (HAS_PENDING_EXCEPTION) {
617 CLEAR_PENDING_EXCEPTION;
618 record_out_of_memory_failure();
619 return ciConstant();
620 }
621 }
622 ciObject* constant = get_object(string);
623 if (constant->is_array()) {
624 return ciConstant(T_ARRAY, constant);
625 } else {
626 assert (constant->is_instance(), "must be an instance, or not? ");
627 return ciConstant(T_OBJECT, constant);
628 }
629 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
630 // 4881222: allow ldc to take a class type
631 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
632 if (HAS_PENDING_EXCEPTION) {
633 CLEAR_PENDING_EXCEPTION;
634 record_out_of_memory_failure();
635 return ciConstant();
636 }
637 assert (klass->is_instance_klass() || klass->is_array_klass(),
638 "must be an instance or array klass ");
639 return ciConstant(T_OBJECT, klass->java_mirror());
640 } else if (tag.is_method_type()) {
641 // must execute Java code to link this CP entry into cache[i].f1
642 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
643 ciObject* ciobj = get_unloaded_method_type_constant(signature);
644 return ciConstant(T_OBJECT, ciobj);
645 } else if (tag.is_method_handle()) {
646 // must execute Java code to link this CP entry into cache[i].f1
647 int ref_kind = cpool->method_handle_ref_kind_at(index);
648 int callee_index = cpool->method_handle_klass_index_at(index);
649 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
650 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
651 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
652 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
653 return ciConstant(T_OBJECT, ciobj);
654 } else {
655 ShouldNotReachHere();
656 return ciConstant();
657 }
658 }
659
660 // ------------------------------------------------------------------
661 // ciEnv::get_constant_by_index
662 //
663 // Pull a constant out of the constant pool. How appropriate.
664 //
665 // Implementation note: this query is currently in no way cached.
666 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
667 int pool_index, int cache_index,
668 ciInstanceKlass* accessor) {
669 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
670 }
671
672 // ------------------------------------------------------------------
673 // ciEnv::get_field_by_index_impl
674 //
675 // Implementation of get_field_by_index.
676 //
677 // Implementation note: the results of field lookups are cached
678 // in the accessor klass.
679 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
680 int index) {
681 ciConstantPoolCache* cache = accessor->field_cache();
682 if (cache == NULL) {
683 ciField* field = new (arena()) ciField(accessor, index);
684 return field;
685 } else {
686 ciField* field = (ciField*)cache->get(index);
687 if (field == NULL) {
688 field = new (arena()) ciField(accessor, index);
689 cache->insert(index, field);
690 }
691 return field;
692 }
693 }
694
695 // ------------------------------------------------------------------
696 // ciEnv::get_field_by_index
697 //
698 // Get a field by index from a klass's constant pool.
699 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
700 int index) {
701 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
702 }
703
704 // ------------------------------------------------------------------
705 // ciEnv::lookup_method
706 //
707 // Perform an appropriate method lookup based on accessor, holder,
708 // name, signature, and bytecode.
709 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
710 ciKlass* holder,
711 Symbol* name,
712 Symbol* sig,
713 Bytecodes::Code bc,
714 constantTag tag) {
715 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
716 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
717
718 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
719 Klass* holder_klass = holder->get_Klass();
720 methodHandle dest_method;
721 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
722 switch (bc) {
723 case Bytecodes::_invokestatic:
724 dest_method =
725 LinkResolver::resolve_static_call_or_null(link_info);
726 break;
727 case Bytecodes::_invokespecial:
728 dest_method =
729 LinkResolver::resolve_special_call_or_null(link_info);
730 break;
731 case Bytecodes::_invokeinterface:
732 dest_method =
733 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
734 break;
735 case Bytecodes::_invokevirtual:
736 dest_method =
737 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
738 break;
739 default: ShouldNotReachHere();
740 }
741
742 return dest_method();
743 }
744
745
746 // ------------------------------------------------------------------
747 // ciEnv::get_method_by_index_impl
748 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
749 int index, Bytecodes::Code bc,
750 ciInstanceKlass* accessor) {
751 if (bc == Bytecodes::_invokedynamic) {
752 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
753 bool is_resolved = !cpce->is_f1_null();
754 // FIXME: code generation could allow for null (unlinked) call site
755 // The call site could be made patchable as follows:
756 // Load the appendix argument from the constant pool.
757 // Test the appendix argument and jump to a known deopt routine if it is null.
758 // Jump through a patchable call site, which is initially a deopt routine.
759 // Patch the call site to the nmethod entry point of the static compiled lambda form.
760 // As with other two-component call sites, both values must be independently verified.
761
762 if (is_resolved) {
763 // Get the invoker Method* from the constant pool.
764 // (The appendix argument, if any, will be noted in the method's signature.)
765 Method* adapter = cpce->f1_as_method();
766 return get_method(adapter);
767 }
768
769 // Fake a method that is equivalent to a declared method.
770 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
771 ciSymbol* name = ciSymbol::invokeBasic_name();
772 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
773 return get_unloaded_method(holder, name, signature, accessor);
774 } else {
775 const int holder_index = cpool->klass_ref_index_at(index);
776 bool holder_is_accessible;
777 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
778
779 // Get the method's name and signature.
780 Symbol* name_sym = cpool->name_ref_at(index);
781 Symbol* sig_sym = cpool->signature_ref_at(index);
782
783 if (cpool->has_preresolution()
784 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
785 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
786 // Short-circuit lookups for JSR 292-related call sites.
787 // That is, do not rely only on name-based lookups, because they may fail
788 // if the names are not resolvable in the boot class loader (7056328).
789 switch (bc) {
790 case Bytecodes::_invokevirtual:
791 case Bytecodes::_invokeinterface:
792 case Bytecodes::_invokespecial:
793 case Bytecodes::_invokestatic:
794 {
795 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
796 if (m != NULL) {
797 return get_method(m);
798 }
799 }
800 break;
801 }
802 }
803
804 if (holder_is_accessible) { // Our declared holder is loaded.
805 constantTag tag = cpool->tag_ref_at(index);
806 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
807 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
808 if (m != NULL &&
809 (bc == Bytecodes::_invokestatic
810 ? m->method_holder()->is_not_initialized()
811 : !m->method_holder()->is_loaded())) {
812 m = NULL;
813 }
814 #ifdef ASSERT
815 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
816 m = NULL;
817 }
818 #endif
819 if (m != NULL) {
820 // We found the method.
821 return get_method(m);
822 }
823 }
824
825 // Either the declared holder was not loaded, or the method could
826 // not be found. Create a dummy ciMethod to represent the failed
827 // lookup.
828 ciSymbol* name = get_symbol(name_sym);
829 ciSymbol* signature = get_symbol(sig_sym);
830 return get_unloaded_method(holder, name, signature, accessor);
831 }
832 }
833
834
835 // ------------------------------------------------------------------
836 // ciEnv::get_instance_klass_for_declared_method_holder
837 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
838 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
839 // instead of a ciInstanceKlass. For that case simply pretend that the
840 // declared holder is Object.clone since that's where the call will bottom out.
841 // A more correct fix would trickle out through many interfaces in CI,
842 // requiring ciInstanceKlass* to become ciKlass* and many more places would
843 // require checks to make sure the expected type was found. Given that this
844 // only occurs for clone() the more extensive fix seems like overkill so
845 // instead we simply smear the array type into Object.
846 guarantee(method_holder != NULL, "no method holder");
847 if (method_holder->is_instance_klass()) {
848 return method_holder->as_instance_klass();
849 } else if (method_holder->is_array_klass()) {
850 return current()->Object_klass();
851 } else {
852 ShouldNotReachHere();
853 }
854 return NULL;
855 }
856
857
858 // ------------------------------------------------------------------
859 // ciEnv::get_method_by_index
860 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
861 int index, Bytecodes::Code bc,
862 ciInstanceKlass* accessor) {
863 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
864 }
865
866
867 // ------------------------------------------------------------------
868 // ciEnv::name_buffer
869 char *ciEnv::name_buffer(int req_len) {
870 if (_name_buffer_len < req_len) {
871 if (_name_buffer == NULL) {
872 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
873 _name_buffer_len = req_len;
874 } else {
875 _name_buffer =
876 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
877 _name_buffer_len = req_len;
878 }
879 }
880 return _name_buffer;
881 }
882
883 // ------------------------------------------------------------------
884 // ciEnv::is_in_vm
885 bool ciEnv::is_in_vm() {
886 return JavaThread::current()->thread_state() == _thread_in_vm;
887 }
888
889 bool ciEnv::system_dictionary_modification_counter_changed() {
890 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
891 }
892
893 // ------------------------------------------------------------------
894 // ciEnv::validate_compile_task_dependencies
895 //
896 // Check for changes during compilation (e.g. class loads, evolution,
897 // breakpoints, call site invalidation).
898 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
899 if (failing()) return; // no need for further checks
900
901 // First, check non-klass dependencies as we might return early and
902 // not check klass dependencies if the system dictionary
903 // modification counter hasn't changed (see below).
904 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
905 if (deps.is_klass_type()) continue; // skip klass dependencies
906 Klass* witness = deps.check_dependency();
907 if (witness != NULL) {
908 if (deps.type() == Dependencies::call_site_target_value) {
909 _inc_decompile_count_on_failure = false;
910 record_failure("call site target change");
911 } else {
912 record_failure("invalid non-klass dependency");
913 }
914 return;
915 }
916 }
917
918 // Klass dependencies must be checked when the system dictionary
919 // changes. If logging is enabled all violated dependences will be
920 // recorded in the log. In debug mode check dependencies even if
921 // the system dictionary hasn't changed to verify that no invalid
922 // dependencies were inserted. Any violated dependences in this
923 // case are dumped to the tty.
924 bool counter_changed = system_dictionary_modification_counter_changed();
925
926 bool verify_deps = trueInDebug;
927 if (!counter_changed && !verify_deps) return;
928
929 int klass_violations = 0;
930 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
931 if (!deps.is_klass_type()) continue; // skip non-klass dependencies
932 Klass* witness = deps.check_dependency();
933 if (witness != NULL) {
934 klass_violations++;
935 if (!counter_changed) {
936 // Dependence failed but counter didn't change. Log a message
937 // describing what failed and allow the assert at the end to
938 // trigger.
939 deps.print_dependency(witness);
940 } else if (xtty == NULL) {
941 // If we're not logging then a single violation is sufficient,
942 // otherwise we want to log all the dependences which were
943 // violated.
944 break;
945 }
946 }
947 }
948
949 if (klass_violations != 0) {
950 #ifdef ASSERT
951 if (!counter_changed && !PrintCompilation) {
952 // Print out the compile task that failed
953 _task->print_tty();
954 }
955 #endif
956 assert(counter_changed, "failed dependencies, but counter didn't change");
957 record_failure("concurrent class loading");
958 }
959 }
960
961 // ------------------------------------------------------------------
962 // ciEnv::register_method
963 void ciEnv::register_method(ciMethod* target,
964 int entry_bci,
965 CodeOffsets* offsets,
966 int orig_pc_offset,
967 CodeBuffer* code_buffer,
968 int frame_words,
969 OopMapSet* oop_map_set,
970 ExceptionHandlerTable* handler_table,
971 ImplicitExceptionTable* inc_table,
972 AbstractCompiler* compiler,
973 bool has_unsafe_access,
974 bool has_wide_vectors,
975 RTMState rtm_state) {
976 VM_ENTRY_MARK;
977 nmethod* nm = NULL;
978 {
979 // To prevent compile queue updates.
980 MutexLocker locker(MethodCompileQueue_lock, THREAD);
981
982 // Prevent SystemDictionary::add_to_hierarchy from running
983 // and invalidating our dependencies until we install this method.
984 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
985 MutexLocker ml(Compile_lock);
986 NoSafepointVerifier nsv;
987
988 // Change in Jvmti state may invalidate compilation.
989 if (!failing() && jvmti_state_changed()) {
990 record_failure("Jvmti state change invalidated dependencies");
991 }
992
993 // Change in DTrace flags may invalidate compilation.
994 if (!failing() &&
995 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
996 (!dtrace_method_probes() && DTraceMethodProbes) ||
997 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
998 record_failure("DTrace flags change invalidated dependencies");
999 }
1000
1001 if (!failing()) {
1002 if (log() != NULL) {
1003 // Log the dependencies which this compilation declares.
1004 dependencies()->log_all_dependencies();
1005 }
1006
1007 // Encode the dependencies now, so we can check them right away.
1008 dependencies()->encode_content_bytes();
1009
1010 // Check for {class loads, evolution, breakpoints, ...} during compilation
1011 validate_compile_task_dependencies(target);
1012 }
1013
1014 methodHandle method(THREAD, target->get_Method());
1015
1016 #if INCLUDE_RTM_OPT
1017 if (!failing() && (rtm_state != NoRTM) &&
1018 (method()->method_data() != NULL) &&
1019 (method()->method_data()->rtm_state() != rtm_state)) {
1020 // Preemptive decompile if rtm state was changed.
1021 record_failure("RTM state change invalidated rtm code");
1022 }
1023 #endif
1024
1025 if (failing()) {
1026 // While not a true deoptimization, it is a preemptive decompile.
1027 MethodData* mdo = method()->method_data();
1028 if (mdo != NULL && _inc_decompile_count_on_failure) {
1029 mdo->inc_decompile_count();
1030 }
1031
1032 // All buffers in the CodeBuffer are allocated in the CodeCache.
1033 // If the code buffer is created on each compile attempt
1034 // as in C2, then it must be freed.
1035 code_buffer->free_blob();
1036 return;
1037 }
1038
1039 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1040 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1041
1042 nm = nmethod::new_nmethod(method,
1043 compile_id(),
1044 entry_bci,
1045 offsets,
1046 orig_pc_offset,
1047 debug_info(), dependencies(), code_buffer,
1048 frame_words, oop_map_set,
1049 handler_table, inc_table,
1050 compiler, task()->comp_level());
1051
1052 // Free codeBlobs
1053 code_buffer->free_blob();
1054
1055 if (nm != NULL) {
1056 nm->set_has_unsafe_access(has_unsafe_access);
1057 nm->set_has_wide_vectors(has_wide_vectors);
1058 #if INCLUDE_RTM_OPT
1059 nm->set_rtm_state(rtm_state);
1060 #endif
1061
1062 // Record successful registration.
1063 // (Put nm into the task handle *before* publishing to the Java heap.)
1064 if (task() != NULL) {
1065 task()->set_code(nm);
1066 }
1067
1068 if (entry_bci == InvocationEntryBci) {
1069 if (TieredCompilation) {
1070 // If there is an old version we're done with it
1071 CompiledMethod* old = method->code();
1072 if (TraceMethodReplacement && old != NULL) {
1073 ResourceMark rm;
1074 char *method_name = method->name_and_sig_as_C_string();
1075 tty->print_cr("Replacing method %s", method_name);
1076 }
1077 if (old != NULL) {
1078 old->make_not_used();
1079 }
1080 }
1081 if (TraceNMethodInstalls) {
1082 ResourceMark rm;
1083 char *method_name = method->name_and_sig_as_C_string();
1084 ttyLocker ttyl;
1085 tty->print_cr("Installing method (%d) %s ",
1086 task()->comp_level(),
1087 method_name);
1088 }
1089 // Allow the code to be executed
1090 method->set_code(method, nm);
1091 } else {
1092 if (TraceNMethodInstalls) {
1093 ResourceMark rm;
1094 char *method_name = method->name_and_sig_as_C_string();
1095 ttyLocker ttyl;
1096 tty->print_cr("Installing osr method (%d) %s @ %d",
1097 task()->comp_level(),
1098 method_name,
1099 entry_bci);
1100 }
1101 method->method_holder()->add_osr_nmethod(nm);
1102 }
1103 }
1104 } // safepoints are allowed again
1105
1106 if (nm != NULL) {
1107 // JVMTI -- compiled method notification (must be done outside lock)
1108 nm->post_compiled_method_load_event();
1109 } else {
1110 // The CodeCache is full.
1111 record_failure("code cache is full");
1112 }
1113 }
1114
1115
1116 // ------------------------------------------------------------------
1117 // ciEnv::find_system_klass
1118 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1119 VM_ENTRY_MARK;
1120 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1121 }
1122
1123 // ------------------------------------------------------------------
1124 // ciEnv::comp_level
1125 int ciEnv::comp_level() {
1126 if (task() == NULL) return CompLevel_highest_tier;
1127 return task()->comp_level();
1128 }
1129
1130 // ------------------------------------------------------------------
1131 // ciEnv::compile_id
1132 uint ciEnv::compile_id() {
1133 if (task() == NULL) return 0;
1134 return task()->compile_id();
1135 }
1136
1137 // ------------------------------------------------------------------
1138 // ciEnv::notice_inlined_method()
1139 void ciEnv::notice_inlined_method(ciMethod* method) {
1140 _num_inlined_bytecodes += method->code_size_for_inlining();
1141 }
1142
1143 // ------------------------------------------------------------------
1144 // ciEnv::num_inlined_bytecodes()
1145 int ciEnv::num_inlined_bytecodes() const {
1146 return _num_inlined_bytecodes;
1147 }
1148
1149 // ------------------------------------------------------------------
1150 // ciEnv::record_failure()
1151 void ciEnv::record_failure(const char* reason) {
1152 if (_failure_reason == NULL) {
1153 // Record the first failure reason.
1154 _failure_reason = reason;
1155 }
1156 }
1157
1158 void ciEnv::report_failure(const char* reason) {
1159 #if INCLUDE_TRACE
1160 EventCompilationFailure event;
1161 if (event.should_commit()) {
1162 event.set_compileId(compile_id());
1163 event.set_failureMessage(reason);
1164 event.commit();
1165 }
1166 #endif
1167 }
1168
1169 // ------------------------------------------------------------------
1170 // ciEnv::record_method_not_compilable()
1171 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1172 int new_compilable =
1173 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1174
1175 // Only note transitions to a worse state
1176 if (new_compilable > _compilable) {
1177 if (log() != NULL) {
1178 if (all_tiers) {
1179 log()->elem("method_not_compilable");
1180 } else {
1181 log()->elem("method_not_compilable_at_tier level='%d'",
1182 current()->task()->comp_level());
1183 }
1184 }
1185 _compilable = new_compilable;
1186
1187 // Reset failure reason; this one is more important.
1188 _failure_reason = NULL;
1189 record_failure(reason);
1190 }
1191 }
1192
1193 // ------------------------------------------------------------------
1194 // ciEnv::record_out_of_memory_failure()
1195 void ciEnv::record_out_of_memory_failure() {
1196 // If memory is low, we stop compiling methods.
1197 record_method_not_compilable("out of memory");
1198 }
1199
1200 ciInstance* ciEnv::unloaded_ciinstance() {
1201 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1202 }
1203
1204 // ------------------------------------------------------------------
1205 // ciEnv::dump_replay_data*
1206
1207 // Don't change thread state and acquire any locks.
1208 // Safe to call from VM error reporter.
1209
1210 void ciEnv::dump_compile_data(outputStream* out) {
1211 CompileTask* task = this->task();
1212 Method* method = task->method();
1213 int entry_bci = task->osr_bci();
1214 int comp_level = task->comp_level();
1215 out->print("compile %s %s %s %d %d",
1216 method->klass_name()->as_quoted_ascii(),
1217 method->name()->as_quoted_ascii(),
1218 method->signature()->as_quoted_ascii(),
1219 entry_bci, comp_level);
1220 if (compiler_data() != NULL) {
1221 if (is_c2_compile(comp_level)) { // C2 or Shark
1222 #ifdef COMPILER2
1223 // Dump C2 inlining data.
1224 ((Compile*)compiler_data())->dump_inline_data(out);
1225 #endif
1226 } else if (is_c1_compile(comp_level)) { // C1
1227 #ifdef COMPILER1
1228 // Dump C1 inlining data.
1229 ((Compilation*)compiler_data())->dump_inline_data(out);
1230 #endif
1231 }
1232 }
1233 out->cr();
1234 }
1235
1236 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1237 ResourceMark rm;
1238 #if INCLUDE_JVMTI
1239 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1240 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1241 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1242 #endif // INCLUDE_JVMTI
1243
1244 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1245 out->print_cr("# %d ciObject found", objects->length());
1246 for (int i = 0; i < objects->length(); i++) {
1247 objects->at(i)->dump_replay_data(out);
1248 }
1249 dump_compile_data(out);
1250 out->flush();
1251 }
1252
1253 void ciEnv::dump_replay_data(outputStream* out) {
1254 GUARDED_VM_ENTRY(
1255 MutexLocker ml(Compile_lock);
1256 dump_replay_data_unsafe(out);
1257 )
1258 }
1259
1260 void ciEnv::dump_replay_data(int compile_id) {
1261 static char buffer[O_BUFLEN];
1262 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1263 if (ret > 0) {
1264 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1265 if (fd != -1) {
1266 FILE* replay_data_file = os::open(fd, "w");
1267 if (replay_data_file != NULL) {
1268 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1269 dump_replay_data(&replay_data_stream);
1270 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1271 } else {
1272 tty->print_cr("# Can't open file to dump replay data.");
1273 }
1274 }
1275 }
1276 }
1277
1278 void ciEnv::dump_inline_data(int compile_id) {
1279 static char buffer[O_BUFLEN];
1280 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1281 if (ret > 0) {
1282 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1283 if (fd != -1) {
1284 FILE* inline_data_file = os::open(fd, "w");
1285 if (inline_data_file != NULL) {
1286 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1287 GUARDED_VM_ENTRY(
1288 MutexLocker ml(Compile_lock);
1289 dump_compile_data(&replay_data_stream);
1290 )
1291 replay_data_stream.flush();
1292 tty->print("# Compiler inline data is saved as: ");
1293 tty->print_cr("%s", buffer);
1294 } else {
1295 tty->print_cr("# Can't open file to dump inline data.");
1296 }
1297 }
1298 }
1299 }