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src/share/vm/ci/ciEnv.cpp@fd44df5e3bc3
src/share/vm/ci/ciEnv.cpp
Wed, 14 Oct 2020 17:44:48 +0800
- author
- aoqi
- date
- Wed, 14 Oct 2020 17:44:48 +0800
- changeset 9931
- fd44df5e3bc3
- parent 7535
- 7ae4e26cb1e0
- parent 9858
- b985cbb00e68
- child 10015
- eb7ce841ccec
- permissions
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Merge
1 /*
2 * Copyright (c) 1999, 2014, 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 */
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/scopeDesc.hpp"
38 #include "compiler/compileBroker.hpp"
39 #include "compiler/compileLog.hpp"
40 #include "compiler/compilerOracle.hpp"
41 #include "gc_interface/collectedHeap.inline.hpp"
42 #include "interpreter/linkResolver.hpp"
43 #include "jfr/jfrEvents.hpp"
44 #include "memory/allocation.inline.hpp"
45 #include "memory/oopFactory.hpp"
46 #include "memory/universe.inline.hpp"
47 #include "oops/methodData.hpp"
48 #include "oops/objArrayKlass.hpp"
49 #include "oops/oop.inline.hpp"
50 #include "oops/oop.inline2.hpp"
51 #include "prims/jvmtiExport.hpp"
52 #include "runtime/init.hpp"
53 #include "runtime/reflection.hpp"
54 #include "runtime/sharedRuntime.hpp"
55 #include "runtime/thread.inline.hpp"
56 #include "utilities/dtrace.hpp"
57 #include "utilities/macros.hpp"
58 #ifdef COMPILER1
59 #include "c1/c1_Runtime1.hpp"
60 #endif
61 #ifdef COMPILER2
62 #include "opto/runtime.hpp"
63 #endif
65 // ciEnv
66 //
67 // This class is the top level broker for requests from the compiler
68 // to the VM.
70 ciObject* ciEnv::_null_object_instance;
72 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL;
73 WK_KLASSES_DO(WK_KLASS_DEFN)
74 #undef WK_KLASS_DEFN
76 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
77 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
78 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
80 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
81 jobject ciEnv::_ArrayStoreException_handle = NULL;
82 jobject ciEnv::_ClassCastException_handle = NULL;
84 #ifndef PRODUCT
85 static bool firstEnv = true;
86 #endif /* PRODUCT */
88 // ------------------------------------------------------------------
89 // ciEnv::ciEnv
90 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
91 : _ciEnv_arena(mtCompiler) {
92 VM_ENTRY_MARK;
94 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
95 thread->set_env(this);
96 assert(ciEnv::current() == this, "sanity");
98 _oop_recorder = NULL;
99 _debug_info = NULL;
100 _dependencies = NULL;
101 _failure_reason = NULL;
102 _compilable = MethodCompilable;
103 _break_at_compile = false;
104 _compiler_data = NULL;
105 #ifndef PRODUCT
106 assert(!firstEnv, "not initialized properly");
107 #endif /* !PRODUCT */
109 _system_dictionary_modification_counter = system_dictionary_modification_counter;
110 _num_inlined_bytecodes = 0;
111 assert(task == NULL || thread->task() == task, "sanity");
112 _task = task;
113 _log = NULL;
115 // Temporary buffer for creating symbols and such.
116 _name_buffer = NULL;
117 _name_buffer_len = 0;
119 _arena = &_ciEnv_arena;
120 _factory = new (_arena) ciObjectFactory(_arena, 128);
122 // Preload commonly referenced system ciObjects.
124 // During VM initialization, these instances have not yet been created.
125 // Assertions ensure that these instances are not accessed before
126 // their initialization.
128 assert(Universe::is_fully_initialized(), "should be complete");
130 oop o = Universe::null_ptr_exception_instance();
131 assert(o != NULL, "should have been initialized");
132 _NullPointerException_instance = get_object(o)->as_instance();
133 o = Universe::arithmetic_exception_instance();
134 assert(o != NULL, "should have been initialized");
135 _ArithmeticException_instance = get_object(o)->as_instance();
137 _ArrayIndexOutOfBoundsException_instance = NULL;
138 _ArrayStoreException_instance = NULL;
139 _ClassCastException_instance = NULL;
140 _the_null_string = NULL;
141 _the_min_jint_string = NULL;
142 }
144 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
145 ASSERT_IN_VM;
147 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
148 CompilerThread* current_thread = CompilerThread::current();
149 assert(current_thread->env() == NULL, "must be");
150 current_thread->set_env(this);
151 assert(ciEnv::current() == this, "sanity");
153 _oop_recorder = NULL;
154 _debug_info = NULL;
155 _dependencies = NULL;
156 _failure_reason = NULL;
157 _compilable = MethodCompilable_never;
158 _break_at_compile = false;
159 _compiler_data = NULL;
160 #ifndef PRODUCT
161 assert(firstEnv, "must be first");
162 firstEnv = false;
163 #endif /* !PRODUCT */
165 _system_dictionary_modification_counter = 0;
166 _num_inlined_bytecodes = 0;
167 _task = NULL;
168 _log = NULL;
170 // Temporary buffer for creating symbols and such.
171 _name_buffer = NULL;
172 _name_buffer_len = 0;
174 _arena = arena;
175 _factory = new (_arena) ciObjectFactory(_arena, 128);
177 // Preload commonly referenced system ciObjects.
179 // During VM initialization, these instances have not yet been created.
180 // Assertions ensure that these instances are not accessed before
181 // their initialization.
183 assert(Universe::is_fully_initialized(), "must be");
185 _NullPointerException_instance = NULL;
186 _ArithmeticException_instance = NULL;
187 _ArrayIndexOutOfBoundsException_instance = NULL;
188 _ArrayStoreException_instance = NULL;
189 _ClassCastException_instance = NULL;
190 _the_null_string = NULL;
191 _the_min_jint_string = NULL;
192 }
194 ciEnv::~ciEnv() {
195 CompilerThread* current_thread = CompilerThread::current();
196 _factory->remove_symbols();
197 // Need safepoint to clear the env on the thread. RedefineClasses might
198 // be reading it.
199 GUARDED_VM_ENTRY(current_thread->set_env(NULL);)
200 }
202 // ------------------------------------------------------------------
203 // Cache Jvmti state
204 void ciEnv::cache_jvmti_state() {
205 VM_ENTRY_MARK;
206 // Get Jvmti capabilities under lock to get consistant values.
207 MutexLocker mu(JvmtiThreadState_lock);
208 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
209 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
210 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
211 }
213 // ------------------------------------------------------------------
214 // Cache DTrace flags
215 void ciEnv::cache_dtrace_flags() {
216 // Need lock?
217 _dtrace_extended_probes = ExtendedDTraceProbes;
218 if (_dtrace_extended_probes) {
219 _dtrace_monitor_probes = true;
220 _dtrace_method_probes = true;
221 _dtrace_alloc_probes = true;
222 } else {
223 _dtrace_monitor_probes = DTraceMonitorProbes;
224 _dtrace_method_probes = DTraceMethodProbes;
225 _dtrace_alloc_probes = DTraceAllocProbes;
226 }
227 }
229 // ------------------------------------------------------------------
230 // helper for lazy exception creation
231 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
232 VM_ENTRY_MARK;
233 if (handle == NULL) {
234 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
235 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
236 jobject objh = NULL;
237 if (!HAS_PENDING_EXCEPTION && k != NULL) {
238 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
239 if (!HAS_PENDING_EXCEPTION)
240 objh = JNIHandles::make_global(obj);
241 }
242 if (HAS_PENDING_EXCEPTION) {
243 CLEAR_PENDING_EXCEPTION;
244 } else {
245 handle = objh;
246 }
247 }
248 oop obj = JNIHandles::resolve(handle);
249 return obj == NULL? NULL: get_object(obj)->as_instance();
250 }
252 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
253 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
254 _ArrayIndexOutOfBoundsException_instance
255 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
256 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
257 }
258 return _ArrayIndexOutOfBoundsException_instance;
259 }
260 ciInstance* ciEnv::ArrayStoreException_instance() {
261 if (_ArrayStoreException_instance == NULL) {
262 _ArrayStoreException_instance
263 = get_or_create_exception(_ArrayStoreException_handle,
264 vmSymbols::java_lang_ArrayStoreException());
265 }
266 return _ArrayStoreException_instance;
267 }
268 ciInstance* ciEnv::ClassCastException_instance() {
269 if (_ClassCastException_instance == NULL) {
270 _ClassCastException_instance
271 = get_or_create_exception(_ClassCastException_handle,
272 vmSymbols::java_lang_ClassCastException());
273 }
274 return _ClassCastException_instance;
275 }
277 ciInstance* ciEnv::the_null_string() {
278 if (_the_null_string == NULL) {
279 VM_ENTRY_MARK;
280 _the_null_string = get_object(Universe::the_null_string())->as_instance();
281 }
282 return _the_null_string;
283 }
285 ciInstance* ciEnv::the_min_jint_string() {
286 if (_the_min_jint_string == NULL) {
287 VM_ENTRY_MARK;
288 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
289 }
290 return _the_min_jint_string;
291 }
293 // ------------------------------------------------------------------
294 // ciEnv::get_method_from_handle
295 ciMethod* ciEnv::get_method_from_handle(Method* method) {
296 VM_ENTRY_MARK;
297 return get_metadata(method)->as_method();
298 }
300 // ------------------------------------------------------------------
301 // ciEnv::array_element_offset_in_bytes
302 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
303 VM_ENTRY_MARK;
304 objArrayOop a = (objArrayOop)a_h->get_oop();
305 assert(a->is_objArray(), "");
306 int length = a->length();
307 oop o = o_h->get_oop();
308 for (int i = 0; i < length; i++) {
309 if (a->obj_at(i) == o) return i;
310 }
311 return -1;
312 }
315 // ------------------------------------------------------------------
316 // ciEnv::check_klass_accessiblity
317 //
318 // Note: the logic of this method should mirror the logic of
319 // ConstantPool::verify_constant_pool_resolve.
320 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
321 Klass* resolved_klass) {
322 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
323 return true;
324 }
325 if (accessing_klass->is_obj_array_klass()) {
326 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
327 }
328 if (!accessing_klass->is_instance_klass()) {
329 return true;
330 }
332 if (resolved_klass->oop_is_objArray()) {
333 // Find the element klass, if this is an array.
334 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
335 }
336 if (resolved_klass->oop_is_instance()) {
337 return Reflection::verify_class_access(accessing_klass->get_Klass(),
338 resolved_klass,
339 true);
340 }
341 return true;
342 }
344 // ------------------------------------------------------------------
345 // ciEnv::get_klass_by_name_impl
346 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
347 constantPoolHandle cpool,
348 ciSymbol* name,
349 bool require_local) {
350 ASSERT_IN_VM;
351 EXCEPTION_CONTEXT;
353 // Now we need to check the SystemDictionary
354 Symbol* sym = name->get_symbol();
355 if (sym->byte_at(0) == 'L' &&
356 sym->byte_at(sym->utf8_length()-1) == ';') {
357 // This is a name from a signature. Strip off the trimmings.
358 // Call recursive to keep scope of strippedsym.
359 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
360 sym->utf8_length()-2,
361 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass));
362 ciSymbol* strippedname = get_symbol(strippedsym);
363 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
364 }
366 // Check for prior unloaded klass. The SystemDictionary's answers
367 // can vary over time but the compiler needs consistency.
368 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
369 if (unloaded_klass != NULL) {
370 if (require_local) return NULL;
371 return unloaded_klass;
372 }
374 Handle loader(THREAD, (oop)NULL);
375 Handle domain(THREAD, (oop)NULL);
376 if (accessing_klass != NULL) {
377 loader = Handle(THREAD, accessing_klass->loader());
378 domain = Handle(THREAD, accessing_klass->protection_domain());
379 }
381 // setup up the proper type to return on OOM
382 ciKlass* fail_type;
383 if (sym->byte_at(0) == '[') {
384 fail_type = _unloaded_ciobjarrayklass;
385 } else {
386 fail_type = _unloaded_ciinstance_klass;
387 }
388 KlassHandle found_klass;
389 {
390 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
391 MutexLocker ml(Compile_lock);
392 Klass* kls;
393 if (!require_local) {
394 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
395 KILL_COMPILE_ON_FATAL_(fail_type));
396 } else {
397 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
398 KILL_COMPILE_ON_FATAL_(fail_type));
399 }
400 found_klass = KlassHandle(THREAD, kls);
401 }
403 // If we fail to find an array klass, look again for its element type.
404 // The element type may be available either locally or via constraints.
405 // In either case, if we can find the element type in the system dictionary,
406 // we must build an array type around it. The CI requires array klasses
407 // to be loaded if their element klasses are loaded, except when memory
408 // is exhausted.
409 if (sym->byte_at(0) == '[' &&
410 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) {
411 // We have an unloaded array.
412 // Build it on the fly if the element class exists.
413 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1,
414 sym->utf8_length()-1,
415 KILL_COMPILE_ON_FATAL_(fail_type));
417 // Get element ciKlass recursively.
418 ciKlass* elem_klass =
419 get_klass_by_name_impl(accessing_klass,
420 cpool,
421 get_symbol(elem_sym),
422 require_local);
423 if (elem_klass != NULL && elem_klass->is_loaded()) {
424 // Now make an array for it
425 return ciObjArrayKlass::make_impl(elem_klass);
426 }
427 }
429 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) {
430 // Look inside the constant pool for pre-resolved class entries.
431 for (int i = cpool->length() - 1; i >= 1; i--) {
432 if (cpool->tag_at(i).is_klass()) {
433 Klass* kls = cpool->resolved_klass_at(i);
434 if (kls->name() == sym) {
435 found_klass = KlassHandle(THREAD, kls);
436 break;
437 }
438 }
439 }
440 }
442 if (found_klass() != NULL) {
443 // Found it. Build a CI handle.
444 return get_klass(found_klass());
445 }
447 if (require_local) return NULL;
449 // Not yet loaded into the VM, or not governed by loader constraints.
450 // Make a CI representative for it.
451 return get_unloaded_klass(accessing_klass, name);
452 }
454 // ------------------------------------------------------------------
455 // ciEnv::get_klass_by_name
456 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
457 ciSymbol* klass_name,
458 bool require_local) {
459 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
460 constantPoolHandle(),
461 klass_name,
462 require_local);)
463 }
465 // ------------------------------------------------------------------
466 // ciEnv::get_klass_by_index_impl
467 //
468 // Implementation of get_klass_by_index.
469 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool,
470 int index,
471 bool& is_accessible,
472 ciInstanceKlass* accessor) {
473 EXCEPTION_CONTEXT;
474 KlassHandle klass; // = NULL;
475 Symbol* klass_name = NULL;
477 if (cpool->tag_at(index).is_symbol()) {
478 klass_name = cpool->symbol_at(index);
479 } else {
480 // Check if it's resolved if it's not a symbol constant pool entry.
481 klass = KlassHandle(THREAD, ConstantPool::klass_at_if_loaded(cpool, index));
483 if (klass.is_null()) {
484 // The klass has not been inserted into the constant pool.
485 // Try to look it up by name.
486 {
487 // We have to lock the cpool to keep the oop from being resolved
488 // while we are accessing it.
489 MonitorLockerEx ml(cpool->lock());
490 constantTag tag = cpool->tag_at(index);
491 if (tag.is_klass()) {
492 // The klass has been inserted into the constant pool
493 // very recently.
494 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index));
495 } else {
496 assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag");
497 klass_name = cpool->unresolved_klass_at(index);
498 }
499 }
500 }
501 }
503 if (klass.is_null()) {
504 // Not found in constant pool. Use the name to do the lookup.
505 ciKlass* k = get_klass_by_name_impl(accessor,
506 cpool,
507 get_symbol(klass_name),
508 false);
509 // Calculate accessibility the hard way.
510 if (!k->is_loaded()) {
511 is_accessible = false;
512 } else if (k->loader() != accessor->loader() &&
513 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
514 // Loaded only remotely. Not linked yet.
515 is_accessible = false;
516 } else {
517 // Linked locally, and we must also check public/private, etc.
518 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
519 }
520 return k;
521 }
523 // Check for prior unloaded klass. The SystemDictionary's answers
524 // can vary over time but the compiler needs consistency.
525 ciSymbol* name = get_symbol(klass()->name());
526 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
527 if (unloaded_klass != NULL) {
528 is_accessible = false;
529 return unloaded_klass;
530 }
532 // It is known to be accessible, since it was found in the constant pool.
533 is_accessible = true;
534 return get_klass(klass());
535 }
537 // ------------------------------------------------------------------
538 // ciEnv::get_klass_by_index
539 //
540 // Get a klass from the constant pool.
541 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool,
542 int index,
543 bool& is_accessible,
544 ciInstanceKlass* accessor) {
545 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
546 }
548 // ------------------------------------------------------------------
549 // ciEnv::get_constant_by_index_impl
550 //
551 // Implementation of get_constant_by_index().
552 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool,
553 int pool_index, int cache_index,
554 ciInstanceKlass* accessor) {
555 bool ignore_will_link;
556 EXCEPTION_CONTEXT;
557 int index = pool_index;
558 if (cache_index >= 0) {
559 assert(index < 0, "only one kind of index at a time");
560 oop obj = cpool->resolved_references()->obj_at(cache_index);
561 if (obj != NULL) {
562 ciObject* ciobj = get_object(obj);
563 if (ciobj->is_array()) {
564 return ciConstant(T_ARRAY, ciobj);
565 } else {
566 assert(ciobj->is_instance(), "should be an instance");
567 return ciConstant(T_OBJECT, ciobj);
568 }
569 }
570 index = cpool->object_to_cp_index(cache_index);
571 }
572 constantTag tag = cpool->tag_at(index);
573 if (tag.is_int()) {
574 return ciConstant(T_INT, (jint)cpool->int_at(index));
575 } else if (tag.is_long()) {
576 return ciConstant((jlong)cpool->long_at(index));
577 } else if (tag.is_float()) {
578 return ciConstant((jfloat)cpool->float_at(index));
579 } else if (tag.is_double()) {
580 return ciConstant((jdouble)cpool->double_at(index));
581 } else if (tag.is_string()) {
582 oop string = NULL;
583 assert(cache_index >= 0, "should have a cache index");
584 if (cpool->is_pseudo_string_at(index)) {
585 string = cpool->pseudo_string_at(index, cache_index);
586 } else {
587 string = cpool->string_at(index, cache_index, THREAD);
588 if (HAS_PENDING_EXCEPTION) {
589 CLEAR_PENDING_EXCEPTION;
590 record_out_of_memory_failure();
591 return ciConstant();
592 }
593 }
594 ciObject* constant = get_object(string);
595 if (constant->is_array()) {
596 return ciConstant(T_ARRAY, constant);
597 } else {
598 assert (constant->is_instance(), "must be an instance, or not? ");
599 return ciConstant(T_OBJECT, constant);
600 }
601 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
602 // 4881222: allow ldc to take a class type
603 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
604 if (HAS_PENDING_EXCEPTION) {
605 CLEAR_PENDING_EXCEPTION;
606 record_out_of_memory_failure();
607 return ciConstant();
608 }
609 assert (klass->is_instance_klass() || klass->is_array_klass(),
610 "must be an instance or array klass ");
611 return ciConstant(T_OBJECT, klass->java_mirror());
612 } else if (tag.is_method_type()) {
613 // must execute Java code to link this CP entry into cache[i].f1
614 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
615 ciObject* ciobj = get_unloaded_method_type_constant(signature);
616 return ciConstant(T_OBJECT, ciobj);
617 } else if (tag.is_method_handle()) {
618 // must execute Java code to link this CP entry into cache[i].f1
619 int ref_kind = cpool->method_handle_ref_kind_at(index);
620 int callee_index = cpool->method_handle_klass_index_at(index);
621 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
622 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
623 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
624 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
625 return ciConstant(T_OBJECT, ciobj);
626 } else {
627 ShouldNotReachHere();
628 return ciConstant();
629 }
630 }
632 // ------------------------------------------------------------------
633 // ciEnv::get_constant_by_index
634 //
635 // Pull a constant out of the constant pool. How appropriate.
636 //
637 // Implementation note: this query is currently in no way cached.
638 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool,
639 int pool_index, int cache_index,
640 ciInstanceKlass* accessor) {
641 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
642 }
644 // ------------------------------------------------------------------
645 // ciEnv::get_field_by_index_impl
646 //
647 // Implementation of get_field_by_index.
648 //
649 // Implementation note: the results of field lookups are cached
650 // in the accessor klass.
651 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
652 int index) {
653 ciConstantPoolCache* cache = accessor->field_cache();
654 if (cache == NULL) {
655 ciField* field = new (arena()) ciField(accessor, index);
656 return field;
657 } else {
658 ciField* field = (ciField*)cache->get(index);
659 if (field == NULL) {
660 field = new (arena()) ciField(accessor, index);
661 cache->insert(index, field);
662 }
663 return field;
664 }
665 }
667 // ------------------------------------------------------------------
668 // ciEnv::get_field_by_index
669 //
670 // Get a field by index from a klass's constant pool.
671 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
672 int index) {
673 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
674 }
676 // ------------------------------------------------------------------
677 // ciEnv::lookup_method
678 //
679 // Perform an appropriate method lookup based on accessor, holder,
680 // name, signature, and bytecode.
681 Method* ciEnv::lookup_method(InstanceKlass* accessor,
682 InstanceKlass* holder,
683 Symbol* name,
684 Symbol* sig,
685 Bytecodes::Code bc) {
686 EXCEPTION_CONTEXT;
687 KlassHandle h_accessor(THREAD, accessor);
688 KlassHandle h_holder(THREAD, holder);
689 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL));
690 methodHandle dest_method;
691 switch (bc) {
692 case Bytecodes::_invokestatic:
693 dest_method =
694 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor);
695 break;
696 case Bytecodes::_invokespecial:
697 dest_method =
698 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor);
699 break;
700 case Bytecodes::_invokeinterface:
701 dest_method =
702 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig,
703 h_accessor, true);
704 break;
705 case Bytecodes::_invokevirtual:
706 dest_method =
707 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig,
708 h_accessor, true);
709 break;
710 default: ShouldNotReachHere();
711 }
713 return dest_method();
714 }
717 // ------------------------------------------------------------------
718 // ciEnv::get_method_by_index_impl
719 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool,
720 int index, Bytecodes::Code bc,
721 ciInstanceKlass* accessor) {
722 if (bc == Bytecodes::_invokedynamic) {
723 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
724 bool is_resolved = !cpce->is_f1_null();
725 // FIXME: code generation could allow for null (unlinked) call site
726 // The call site could be made patchable as follows:
727 // Load the appendix argument from the constant pool.
728 // Test the appendix argument and jump to a known deopt routine if it is null.
729 // Jump through a patchable call site, which is initially a deopt routine.
730 // Patch the call site to the nmethod entry point of the static compiled lambda form.
731 // As with other two-component call sites, both values must be independently verified.
733 if (is_resolved) {
734 // Get the invoker Method* from the constant pool.
735 // (The appendix argument, if any, will be noted in the method's signature.)
736 Method* adapter = cpce->f1_as_method();
737 return get_method(adapter);
738 }
740 // Fake a method that is equivalent to a declared method.
741 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
742 ciSymbol* name = ciSymbol::invokeBasic_name();
743 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
744 return get_unloaded_method(holder, name, signature, accessor);
745 } else {
746 const int holder_index = cpool->klass_ref_index_at(index);
747 bool holder_is_accessible;
748 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
749 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder);
751 // Get the method's name and signature.
752 Symbol* name_sym = cpool->name_ref_at(index);
753 Symbol* sig_sym = cpool->signature_ref_at(index);
755 if (cpool->has_preresolution()
756 || (holder == ciEnv::MethodHandle_klass() &&
757 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
758 // Short-circuit lookups for JSR 292-related call sites.
759 // That is, do not rely only on name-based lookups, because they may fail
760 // if the names are not resolvable in the boot class loader (7056328).
761 switch (bc) {
762 case Bytecodes::_invokevirtual:
763 case Bytecodes::_invokeinterface:
764 case Bytecodes::_invokespecial:
765 case Bytecodes::_invokestatic:
766 {
767 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
768 if (m != NULL) {
769 return get_method(m);
770 }
771 }
772 break;
773 }
774 }
776 if (holder_is_accessible) { // Our declared holder is loaded.
777 InstanceKlass* lookup = declared_holder->get_instanceKlass();
778 Method* m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc);
779 if (m != NULL &&
780 (bc == Bytecodes::_invokestatic
781 ? m->method_holder()->is_not_initialized()
782 : !m->method_holder()->is_loaded())) {
783 m = NULL;
784 }
785 #ifdef ASSERT
786 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
787 m = NULL;
788 }
789 #endif
790 if (m != NULL) {
791 // We found the method.
792 return get_method(m);
793 }
794 }
796 // Either the declared holder was not loaded, or the method could
797 // not be found. Create a dummy ciMethod to represent the failed
798 // lookup.
799 ciSymbol* name = get_symbol(name_sym);
800 ciSymbol* signature = get_symbol(sig_sym);
801 return get_unloaded_method(declared_holder, name, signature, accessor);
802 }
803 }
806 // ------------------------------------------------------------------
807 // ciEnv::get_instance_klass_for_declared_method_holder
808 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
809 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
810 // instead of a ciInstanceKlass. For that case simply pretend that the
811 // declared holder is Object.clone since that's where the call will bottom out.
812 // A more correct fix would trickle out through many interfaces in CI,
813 // requiring ciInstanceKlass* to become ciKlass* and many more places would
814 // require checks to make sure the expected type was found. Given that this
815 // only occurs for clone() the more extensive fix seems like overkill so
816 // instead we simply smear the array type into Object.
817 guarantee(method_holder != NULL, "no method holder");
818 if (method_holder->is_instance_klass()) {
819 return method_holder->as_instance_klass();
820 } else if (method_holder->is_array_klass()) {
821 return current()->Object_klass();
822 } else {
823 ShouldNotReachHere();
824 }
825 return NULL;
826 }
829 // ------------------------------------------------------------------
830 // ciEnv::get_method_by_index
831 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool,
832 int index, Bytecodes::Code bc,
833 ciInstanceKlass* accessor) {
834 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
835 }
838 // ------------------------------------------------------------------
839 // ciEnv::name_buffer
840 char *ciEnv::name_buffer(int req_len) {
841 if (_name_buffer_len < req_len) {
842 if (_name_buffer == NULL) {
843 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
844 _name_buffer_len = req_len;
845 } else {
846 _name_buffer =
847 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
848 _name_buffer_len = req_len;
849 }
850 }
851 return _name_buffer;
852 }
854 // ------------------------------------------------------------------
855 // ciEnv::is_in_vm
856 bool ciEnv::is_in_vm() {
857 return JavaThread::current()->thread_state() == _thread_in_vm;
858 }
860 bool ciEnv::system_dictionary_modification_counter_changed() {
861 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
862 }
864 // ------------------------------------------------------------------
865 // ciEnv::validate_compile_task_dependencies
866 //
867 // Check for changes during compilation (e.g. class loads, evolution,
868 // breakpoints, call site invalidation).
869 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
870 if (failing()) return; // no need for further checks
872 // First, check non-klass dependencies as we might return early and
873 // not check klass dependencies if the system dictionary
874 // modification counter hasn't changed (see below).
875 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
876 if (deps.is_klass_type()) continue; // skip klass dependencies
877 Klass* witness = deps.check_dependency();
878 if (witness != NULL) {
879 record_failure("invalid non-klass dependency");
880 return;
881 }
882 }
884 // Klass dependencies must be checked when the system dictionary
885 // changes. If logging is enabled all violated dependences will be
886 // recorded in the log. In debug mode check dependencies even if
887 // the system dictionary hasn't changed to verify that no invalid
888 // dependencies were inserted. Any violated dependences in this
889 // case are dumped to the tty.
890 bool counter_changed = system_dictionary_modification_counter_changed();
892 bool verify_deps = trueInDebug;
893 if (!counter_changed && !verify_deps) return;
895 int klass_violations = 0;
896 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) {
897 if (!deps.is_klass_type()) continue; // skip non-klass dependencies
898 Klass* witness = deps.check_dependency();
899 if (witness != NULL) {
900 klass_violations++;
901 if (!counter_changed) {
902 // Dependence failed but counter didn't change. Log a message
903 // describing what failed and allow the assert at the end to
904 // trigger.
905 deps.print_dependency(witness);
906 } else if (xtty == NULL) {
907 // If we're not logging then a single violation is sufficient,
908 // otherwise we want to log all the dependences which were
909 // violated.
910 break;
911 }
912 }
913 }
915 if (klass_violations != 0) {
916 #ifdef ASSERT
917 if (!counter_changed && !PrintCompilation) {
918 // Print out the compile task that failed
919 _task->print_line();
920 }
921 #endif
922 assert(counter_changed, "failed dependencies, but counter didn't change");
923 record_failure("concurrent class loading");
924 }
925 }
927 // ------------------------------------------------------------------
928 // ciEnv::register_method
929 void ciEnv::register_method(ciMethod* target,
930 int entry_bci,
931 CodeOffsets* offsets,
932 int orig_pc_offset,
933 CodeBuffer* code_buffer,
934 int frame_words,
935 OopMapSet* oop_map_set,
936 ExceptionHandlerTable* handler_table,
937 ImplicitExceptionTable* inc_table,
938 AbstractCompiler* compiler,
939 int comp_level,
940 bool has_unsafe_access,
941 bool has_wide_vectors,
942 RTMState rtm_state) {
943 VM_ENTRY_MARK;
944 nmethod* nm = NULL;
945 {
946 // To prevent compile queue updates.
947 MutexLocker locker(MethodCompileQueue_lock, THREAD);
949 // Prevent SystemDictionary::add_to_hierarchy from running
950 // and invalidating our dependencies until we install this method.
951 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
952 MutexLocker ml(Compile_lock);
953 No_Safepoint_Verifier nsv;
955 // Change in Jvmti state may invalidate compilation.
956 if (!failing() &&
957 ( (!jvmti_can_hotswap_or_post_breakpoint() &&
958 JvmtiExport::can_hotswap_or_post_breakpoint()) ||
959 (!jvmti_can_access_local_variables() &&
960 JvmtiExport::can_access_local_variables()) ||
961 (!jvmti_can_post_on_exceptions() &&
962 JvmtiExport::can_post_on_exceptions()) )) {
963 record_failure("Jvmti state change invalidated dependencies");
964 }
966 // Change in DTrace flags may invalidate compilation.
967 if (!failing() &&
968 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
969 (!dtrace_method_probes() && DTraceMethodProbes) ||
970 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
971 record_failure("DTrace flags change invalidated dependencies");
972 }
974 if (!failing()) {
975 if (log() != NULL) {
976 // Log the dependencies which this compilation declares.
977 dependencies()->log_all_dependencies();
978 }
980 // Encode the dependencies now, so we can check them right away.
981 dependencies()->encode_content_bytes();
983 // Check for {class loads, evolution, breakpoints, ...} during compilation
984 validate_compile_task_dependencies(target);
985 }
987 methodHandle method(THREAD, target->get_Method());
989 #if INCLUDE_RTM_OPT
990 if (!failing() && (rtm_state != NoRTM) &&
991 (method()->method_data() != NULL) &&
992 (method()->method_data()->rtm_state() != rtm_state)) {
993 // Preemptive decompile if rtm state was changed.
994 record_failure("RTM state change invalidated rtm code");
995 }
996 #endif
998 if (failing()) {
999 // While not a true deoptimization, it is a preemptive decompile.
1000 MethodData* mdo = method()->method_data();
1001 if (mdo != NULL) {
1002 mdo->inc_decompile_count();
1003 }
1005 // All buffers in the CodeBuffer are allocated in the CodeCache.
1006 // If the code buffer is created on each compile attempt
1007 // as in C2, then it must be freed.
1008 code_buffer->free_blob();
1009 return;
1010 }
1012 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1013 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1015 nm = nmethod::new_nmethod(method,
1016 compile_id(),
1017 entry_bci,
1018 offsets,
1019 orig_pc_offset,
1020 debug_info(), dependencies(), code_buffer,
1021 frame_words, oop_map_set,
1022 handler_table, inc_table,
1023 compiler, comp_level);
1024 // Free codeBlobs
1025 code_buffer->free_blob();
1027 if (nm != NULL) {
1028 nm->set_has_unsafe_access(has_unsafe_access);
1029 nm->set_has_wide_vectors(has_wide_vectors);
1030 #if INCLUDE_RTM_OPT
1031 nm->set_rtm_state(rtm_state);
1032 #endif
1034 // Record successful registration.
1035 // (Put nm into the task handle *before* publishing to the Java heap.)
1036 if (task() != NULL) {
1037 task()->set_code(nm);
1038 }
1040 if (entry_bci == InvocationEntryBci) {
1041 if (TieredCompilation) {
1042 // If there is an old version we're done with it
1043 nmethod* old = method->code();
1044 if (TraceMethodReplacement && old != NULL) {
1045 ResourceMark rm;
1046 char *method_name = method->name_and_sig_as_C_string();
1047 tty->print_cr("Replacing method %s", method_name);
1048 }
1049 if (old != NULL) {
1050 old->make_not_entrant();
1051 }
1052 }
1053 if (TraceNMethodInstalls) {
1054 ResourceMark rm;
1055 char *method_name = method->name_and_sig_as_C_string();
1056 ttyLocker ttyl;
1057 tty->print_cr("Installing method (%d) %s ",
1058 comp_level,
1059 method_name);
1060 }
1061 // Allow the code to be executed
1062 method->set_code(method, nm);
1063 } else {
1064 if (TraceNMethodInstalls) {
1065 ResourceMark rm;
1066 char *method_name = method->name_and_sig_as_C_string();
1067 ttyLocker ttyl;
1068 tty->print_cr("Installing osr method (%d) %s @ %d",
1069 comp_level,
1070 method_name,
1071 entry_bci);
1072 }
1073 method->method_holder()->add_osr_nmethod(nm);
1074 }
1075 }
1076 } // safepoints are allowed again
1078 if (nm != NULL) {
1079 // JVMTI -- compiled method notification (must be done outside lock)
1080 nm->post_compiled_method_load_event();
1081 } else {
1082 // The CodeCache is full. Print out warning and disable compilation.
1083 record_failure("code cache is full");
1084 CompileBroker::handle_full_code_cache();
1085 }
1086 }
1089 // ------------------------------------------------------------------
1090 // ciEnv::find_system_klass
1091 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1092 VM_ENTRY_MARK;
1093 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1094 }
1096 // ------------------------------------------------------------------
1097 // ciEnv::comp_level
1098 int ciEnv::comp_level() {
1099 if (task() == NULL) return CompLevel_highest_tier;
1100 return task()->comp_level();
1101 }
1103 // ------------------------------------------------------------------
1104 // ciEnv::compile_id
1105 uint ciEnv::compile_id() {
1106 if (task() == NULL) return 0;
1107 return task()->compile_id();
1108 }
1110 // ------------------------------------------------------------------
1111 // ciEnv::notice_inlined_method()
1112 void ciEnv::notice_inlined_method(ciMethod* method) {
1113 _num_inlined_bytecodes += method->code_size_for_inlining();
1114 }
1116 // ------------------------------------------------------------------
1117 // ciEnv::num_inlined_bytecodes()
1118 int ciEnv::num_inlined_bytecodes() const {
1119 return _num_inlined_bytecodes;
1120 }
1122 // ------------------------------------------------------------------
1123 // ciEnv::record_failure()
1124 void ciEnv::record_failure(const char* reason) {
1125 if (_failure_reason == NULL) {
1126 // Record the first failure reason.
1127 _failure_reason = reason;
1128 }
1129 }
1131 // ------------------------------------------------------------------
1132 // ciEnv::record_method_not_compilable()
1133 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1134 int new_compilable =
1135 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1137 // Only note transitions to a worse state
1138 if (new_compilable > _compilable) {
1139 if (log() != NULL) {
1140 if (all_tiers) {
1141 log()->elem("method_not_compilable");
1142 } else {
1143 log()->elem("method_not_compilable_at_tier level='%d'",
1144 current()->task()->comp_level());
1145 }
1146 }
1147 _compilable = new_compilable;
1149 // Reset failure reason; this one is more important.
1150 _failure_reason = NULL;
1151 record_failure(reason);
1152 }
1153 }
1155 // ------------------------------------------------------------------
1156 // ciEnv::record_out_of_memory_failure()
1157 void ciEnv::record_out_of_memory_failure() {
1158 // If memory is low, we stop compiling methods.
1159 record_method_not_compilable("out of memory");
1160 }
1162 ciInstance* ciEnv::unloaded_ciinstance() {
1163 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1164 }
1166 // ------------------------------------------------------------------
1167 // ciEnv::dump_replay_data*
1169 // Don't change thread state and acquire any locks.
1170 // Safe to call from VM error reporter.
1172 void ciEnv::dump_compile_data(outputStream* out) {
1173 CompileTask* task = this->task();
1174 Method* method = task->method();
1175 int entry_bci = task->osr_bci();
1176 int comp_level = task->comp_level();
1177 out->print("compile %s %s %s %d %d",
1178 method->klass_name()->as_quoted_ascii(),
1179 method->name()->as_quoted_ascii(),
1180 method->signature()->as_quoted_ascii(),
1181 entry_bci, comp_level);
1182 if (compiler_data() != NULL) {
1183 if (is_c2_compile(comp_level)) { // C2 or Shark
1184 #ifdef COMPILER2
1185 // Dump C2 inlining data.
1186 ((Compile*)compiler_data())->dump_inline_data(out);
1187 #endif
1188 } else if (is_c1_compile(comp_level)) { // C1
1189 #ifdef COMPILER1
1190 // Dump C1 inlining data.
1191 ((Compilation*)compiler_data())->dump_inline_data(out);
1192 #endif
1193 }
1194 }
1195 out->cr();
1196 }
1198 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1199 ResourceMark rm;
1200 #if INCLUDE_JVMTI
1201 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1202 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1203 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1204 #endif // INCLUDE_JVMTI
1206 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1207 out->print_cr("# %d ciObject found", objects->length());
1208 for (int i = 0; i < objects->length(); i++) {
1209 objects->at(i)->dump_replay_data(out);
1210 }
1211 dump_compile_data(out);
1212 out->flush();
1213 }
1215 void ciEnv::dump_replay_data(outputStream* out) {
1216 GUARDED_VM_ENTRY(
1217 MutexLocker ml(Compile_lock);
1218 dump_replay_data_unsafe(out);
1219 )
1220 }
1222 void ciEnv::dump_replay_data(int compile_id) {
1223 static char buffer[O_BUFLEN];
1224 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1225 if (ret > 0) {
1226 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1227 if (fd != -1) {
1228 FILE* replay_data_file = os::open(fd, "w");
1229 if (replay_data_file != NULL) {
1230 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1231 dump_replay_data(&replay_data_stream);
1232 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1233 } else {
1234 tty->print_cr("# Can't open file to dump replay data.");
1235 }
1236 }
1237 }
1238 }
1240 void ciEnv::dump_inline_data(int compile_id) {
1241 static char buffer[O_BUFLEN];
1242 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1243 if (ret > 0) {
1244 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1245 if (fd != -1) {
1246 FILE* inline_data_file = os::open(fd, "w");
1247 if (inline_data_file != NULL) {
1248 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1249 GUARDED_VM_ENTRY(
1250 MutexLocker ml(Compile_lock);
1251 dump_compile_data(&replay_data_stream);
1252 )
1253 replay_data_stream.flush();
1254 tty->print("# Compiler inline data is saved as: ");
1255 tty->print_cr("%s", buffer);
1256 } else {
1257 tty->print_cr("# Can't open file to dump inline data.");
1258 }
1259 }
1260 }
1261 }
