1 /*
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jvm.h"
27 #include "ci/ciConstant.hpp"
28 #include "ci/ciEnv.hpp"
29 #include "ci/ciField.hpp"
30 #include "ci/ciInstance.hpp"
31 #include "ci/ciInstanceKlass.hpp"
32 #include "ci/ciMethod.hpp"
33 #include "ci/ciNullObject.hpp"
34 #include "ci/ciReplay.hpp"
35 #include "ci/ciUtilities.inline.hpp"
36 #include "classfile/symbolTable.hpp"
37 #include "classfile/systemDictionary.hpp"
38 #include "classfile/vmSymbols.hpp"
39 #include "code/codeCache.hpp"
40 #include "code/scopeDesc.hpp"
41 #include "compiler/compileBroker.hpp"
42 #include "compiler/compileLog.hpp"
43 #include "compiler/disassembler.hpp"
44 #include "gc/shared/collectedHeap.inline.hpp"
45 #include "interpreter/linkResolver.hpp"
46 #include "jfr/jfrEvents.hpp"
47 #include "logging/log.hpp"
48 #include "memory/allocation.inline.hpp"
49 #include "memory/oopFactory.hpp"
50 #include "memory/resourceArea.hpp"
51 #include "memory/universe.hpp"
52 #include "oops/constantPool.inline.hpp"
53 #include "oops/cpCache.inline.hpp"
54 #include "oops/method.inline.hpp"
55 #include "oops/methodData.hpp"
56 #include "oops/objArrayKlass.hpp"
57 #include "oops/objArrayOop.inline.hpp"
58 #include "oops/oop.inline.hpp"
59 #include "prims/jvmtiExport.hpp"
60 #include "runtime/handles.inline.hpp"
61 #include "runtime/init.hpp"
62 #include "runtime/reflection.hpp"
63 #include "runtime/jniHandles.inline.hpp"
64 #include "runtime/safepointVerifiers.hpp"
65 #include "runtime/sharedRuntime.hpp"
66 #include "runtime/thread.inline.hpp"
67 #include "utilities/dtrace.hpp"
68 #include "utilities/macros.hpp"
69 #ifdef COMPILER1
70 #include "c1/c1_Runtime1.hpp"
71 #endif
72 #ifdef COMPILER2
73 #include "opto/runtime.hpp"
74 #endif
75
76 // ciEnv
77 //
78 // This class is the top level broker for requests from the compiler
79 // to the VM.
80
81 ciObject* ciEnv::_null_object_instance;
82
83 #define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL;
84 WK_KLASSES_DO(WK_KLASS_DEFN)
85 #undef WK_KLASS_DEFN
86
87 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
88 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
89 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
90
91 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
92 jobject ciEnv::_ArrayStoreException_handle = NULL;
93 jobject ciEnv::_ClassCastException_handle = NULL;
94
95 #ifndef PRODUCT
96 static bool firstEnv = true;
97 #endif /* PRODUCT */
98
99 // ------------------------------------------------------------------
100 // ciEnv::ciEnv
101 ciEnv::ciEnv(CompileTask* task)
102 : _ciEnv_arena(mtCompiler) {
103 VM_ENTRY_MARK;
104
105 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
106 thread->set_env(this);
107 assert(ciEnv::current() == this, "sanity");
108
109 _oop_recorder = NULL;
110 _debug_info = NULL;
111 _dependencies = NULL;
112 _failure_reason = NULL;
113 _inc_decompile_count_on_failure = true;
114 _compilable = MethodCompilable;
115 _break_at_compile = false;
116 _compiler_data = NULL;
117 #ifndef PRODUCT
118 assert(!firstEnv, "not initialized properly");
119 #endif /* !PRODUCT */
120
121 _num_inlined_bytecodes = 0;
122 assert(task == NULL || thread->task() == task, "sanity");
123 if (task != NULL) {
124 task->mark_started(os::elapsed_counter());
125 }
126 _task = task;
127 _log = NULL;
128
129 // Temporary buffer for creating symbols and such.
130 _name_buffer = NULL;
131 _name_buffer_len = 0;
132
133 _arena = &_ciEnv_arena;
134 _factory = new (_arena) ciObjectFactory(_arena, 128);
135
136 // Preload commonly referenced system ciObjects.
137
138 // During VM initialization, these instances have not yet been created.
139 // Assertions ensure that these instances are not accessed before
140 // their initialization.
141
142 assert(Universe::is_fully_initialized(), "should be complete");
143
144 oop o = Universe::null_ptr_exception_instance();
145 assert(o != NULL, "should have been initialized");
146 _NullPointerException_instance = get_object(o)->as_instance();
147 o = Universe::arithmetic_exception_instance();
148 assert(o != NULL, "should have been initialized");
149 _ArithmeticException_instance = get_object(o)->as_instance();
150
151 _ArrayIndexOutOfBoundsException_instance = NULL;
152 _ArrayStoreException_instance = NULL;
153 _ClassCastException_instance = NULL;
154 _the_null_string = NULL;
155 _the_min_jint_string = NULL;
156
157 _jvmti_can_hotswap_or_post_breakpoint = false;
158 _jvmti_can_access_local_variables = false;
159 _jvmti_can_post_on_exceptions = false;
160 _jvmti_can_pop_frame = false;
161 }
162
163 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
164 ASSERT_IN_VM;
165
166 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
167 CompilerThread* current_thread = CompilerThread::current();
168 assert(current_thread->env() == NULL, "must be");
169 current_thread->set_env(this);
170 assert(ciEnv::current() == this, "sanity");
171
172 _oop_recorder = NULL;
173 _debug_info = NULL;
174 _dependencies = NULL;
175 _failure_reason = NULL;
176 _inc_decompile_count_on_failure = true;
177 _compilable = MethodCompilable_never;
178 _break_at_compile = false;
179 _compiler_data = NULL;
180 #ifndef PRODUCT
181 assert(firstEnv, "must be first");
182 firstEnv = false;
183 #endif /* !PRODUCT */
184
185 _num_inlined_bytecodes = 0;
186 _task = NULL;
187 _log = NULL;
188
189 // Temporary buffer for creating symbols and such.
190 _name_buffer = NULL;
191 _name_buffer_len = 0;
192
193 _arena = arena;
194 _factory = new (_arena) ciObjectFactory(_arena, 128);
195
196 // Preload commonly referenced system ciObjects.
197
198 // During VM initialization, these instances have not yet been created.
199 // Assertions ensure that these instances are not accessed before
200 // their initialization.
201
202 assert(Universe::is_fully_initialized(), "must be");
203
204 _NullPointerException_instance = NULL;
205 _ArithmeticException_instance = NULL;
206 _ArrayIndexOutOfBoundsException_instance = NULL;
207 _ArrayStoreException_instance = NULL;
208 _ClassCastException_instance = NULL;
209 _the_null_string = NULL;
210 _the_min_jint_string = NULL;
211
212 _jvmti_can_hotswap_or_post_breakpoint = false;
213 _jvmti_can_access_local_variables = false;
214 _jvmti_can_post_on_exceptions = false;
215 _jvmti_can_pop_frame = false;
216 }
217
218 ciEnv::~ciEnv() {
219 GUARDED_VM_ENTRY(
220 CompilerThread* current_thread = CompilerThread::current();
221 _factory->remove_symbols();
222 // Need safepoint to clear the env on the thread. RedefineClasses might
223 // be reading it.
224 current_thread->set_env(NULL);
225 )
226 }
227
228 // ------------------------------------------------------------------
229 // Cache Jvmti state
230 void ciEnv::cache_jvmti_state() {
231 VM_ENTRY_MARK;
232 // Get Jvmti capabilities under lock to get consistant values.
233 MutexLocker mu(JvmtiThreadState_lock);
234 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
235 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
236 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
237 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
238 }
239
240 bool ciEnv::jvmti_state_changed() const {
241 if (!_jvmti_can_access_local_variables &&
242 JvmtiExport::can_access_local_variables()) {
243 return true;
244 }
245 if (!_jvmti_can_hotswap_or_post_breakpoint &&
246 JvmtiExport::can_hotswap_or_post_breakpoint()) {
247 return true;
248 }
249 if (!_jvmti_can_post_on_exceptions &&
250 JvmtiExport::can_post_on_exceptions()) {
251 return true;
252 }
253 if (!_jvmti_can_pop_frame &&
254 JvmtiExport::can_pop_frame()) {
255 return true;
256 }
257 return false;
258 }
259
260 // ------------------------------------------------------------------
261 // Cache DTrace flags
262 void ciEnv::cache_dtrace_flags() {
263 // Need lock?
264 _dtrace_extended_probes = ExtendedDTraceProbes;
265 if (_dtrace_extended_probes) {
266 _dtrace_monitor_probes = true;
267 _dtrace_method_probes = true;
268 _dtrace_alloc_probes = true;
269 } else {
270 _dtrace_monitor_probes = DTraceMonitorProbes;
271 _dtrace_method_probes = DTraceMethodProbes;
272 _dtrace_alloc_probes = DTraceAllocProbes;
273 }
274 }
275
276 // ------------------------------------------------------------------
277 // helper for lazy exception creation
278 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
279 VM_ENTRY_MARK;
280 if (handle == NULL) {
281 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
282 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
283 jobject objh = NULL;
284 if (!HAS_PENDING_EXCEPTION && k != NULL) {
285 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
286 if (!HAS_PENDING_EXCEPTION)
287 objh = JNIHandles::make_global(Handle(THREAD, obj));
288 }
289 if (HAS_PENDING_EXCEPTION) {
290 CLEAR_PENDING_EXCEPTION;
291 } else {
292 handle = objh;
293 }
294 }
295 oop obj = JNIHandles::resolve(handle);
296 return obj == NULL? NULL: get_object(obj)->as_instance();
297 }
298
299 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
300 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
301 _ArrayIndexOutOfBoundsException_instance
302 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
303 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
304 }
305 return _ArrayIndexOutOfBoundsException_instance;
306 }
307 ciInstance* ciEnv::ArrayStoreException_instance() {
308 if (_ArrayStoreException_instance == NULL) {
309 _ArrayStoreException_instance
310 = get_or_create_exception(_ArrayStoreException_handle,
311 vmSymbols::java_lang_ArrayStoreException());
312 }
313 return _ArrayStoreException_instance;
314 }
315 ciInstance* ciEnv::ClassCastException_instance() {
316 if (_ClassCastException_instance == NULL) {
317 _ClassCastException_instance
318 = get_or_create_exception(_ClassCastException_handle,
319 vmSymbols::java_lang_ClassCastException());
320 }
321 return _ClassCastException_instance;
322 }
323
324 ciInstance* ciEnv::the_null_string() {
325 if (_the_null_string == NULL) {
326 VM_ENTRY_MARK;
327 _the_null_string = get_object(Universe::the_null_string())->as_instance();
328 }
329 return _the_null_string;
330 }
331
332 ciInstance* ciEnv::the_min_jint_string() {
333 if (_the_min_jint_string == NULL) {
334 VM_ENTRY_MARK;
335 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
336 }
337 return _the_min_jint_string;
338 }
339
340 // ------------------------------------------------------------------
341 // ciEnv::get_method_from_handle
342 ciMethod* ciEnv::get_method_from_handle(Method* method) {
343 VM_ENTRY_MARK;
344 return get_metadata(method)->as_method();
345 }
346
347 // ------------------------------------------------------------------
348 // ciEnv::array_element_offset_in_bytes
349 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
350 VM_ENTRY_MARK;
351 objArrayOop a = (objArrayOop)a_h->get_oop();
352 assert(a->is_objArray(), "");
353 int length = a->length();
354 oop o = o_h->get_oop();
355 for (int i = 0; i < length; i++) {
356 if (a->obj_at(i) == o) return i;
357 }
358 return -1;
359 }
360
361
362 // ------------------------------------------------------------------
363 // ciEnv::check_klass_accessiblity
364 //
365 // Note: the logic of this method should mirror the logic of
366 // ConstantPool::verify_constant_pool_resolve.
367 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
368 Klass* resolved_klass) {
369 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
370 return true;
371 }
372 if (accessing_klass->is_obj_array_klass()) {
373 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
374 }
375 if (!accessing_klass->is_instance_klass()) {
376 return true;
377 }
378
379 if (resolved_klass->is_objArray_klass()) {
380 // Find the element klass, if this is an array.
381 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
382 }
383 if (resolved_klass->is_instance_klass()) {
384 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
385 InstanceKlass::cast(resolved_klass),
386 true) == Reflection::ACCESS_OK);
387 }
388 return true;
389 }
390
391 // ------------------------------------------------------------------
392 // ciEnv::get_klass_by_name_impl
393 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
394 const constantPoolHandle& cpool,
395 ciSymbol* name,
396 bool require_local) {
397 ASSERT_IN_VM;
398 EXCEPTION_CONTEXT;
399
400 // Now we need to check the SystemDictionary
401 Symbol* sym = name->get_symbol();
402 if (sym->char_at(0) == 'L' &&
403 sym->char_at(sym->utf8_length()-1) == ';') {
404 // This is a name from a signature. Strip off the trimmings.
405 // Call recursive to keep scope of strippedsym.
406 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
407 sym->utf8_length()-2);
408 ciSymbol* strippedname = get_symbol(strippedsym);
409 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
410 }
411
412 // Check for prior unloaded klass. The SystemDictionary's answers
413 // can vary over time but the compiler needs consistency.
414 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
415 if (unloaded_klass != NULL) {
416 if (require_local) return NULL;
417 return unloaded_klass;
418 }
419
420 Handle loader(THREAD, (oop)NULL);
421 Handle domain(THREAD, (oop)NULL);
422 if (accessing_klass != NULL) {
423 loader = Handle(THREAD, accessing_klass->loader());
424 domain = Handle(THREAD, accessing_klass->protection_domain());
425 }
426
427 // setup up the proper type to return on OOM
428 ciKlass* fail_type;
429 if (sym->char_at(0) == '[') {
430 fail_type = _unloaded_ciobjarrayklass;
431 } else {
432 fail_type = _unloaded_ciinstance_klass;
433 }
434 Klass* found_klass;
435 {
436 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
437 MutexLocker ml(Compile_lock);
438 Klass* kls;
439 if (!require_local) {
440 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
441 KILL_COMPILE_ON_FATAL_(fail_type));
442 } else {
443 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
444 KILL_COMPILE_ON_FATAL_(fail_type));
445 }
446 found_klass = kls;
447 }
448
449 // If we fail to find an array klass, look again for its element type.
450 // The element type may be available either locally or via constraints.
451 // In either case, if we can find the element type in the system dictionary,
452 // we must build an array type around it. The CI requires array klasses
453 // to be loaded if their element klasses are loaded, except when memory
454 // is exhausted.
455 if (sym->char_at(0) == '[' &&
456 (sym->char_at(1) == '[' || sym->char_at(1) == 'L')) {
457 // We have an unloaded array.
458 // Build it on the fly if the element class exists.
459 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1,
460 sym->utf8_length()-1);
461
462 // Get element ciKlass recursively.
463 ciKlass* elem_klass =
464 get_klass_by_name_impl(accessing_klass,
465 cpool,
466 get_symbol(elem_sym),
467 require_local);
468 if (elem_klass != NULL && elem_klass->is_loaded()) {
469 // Now make an array for it
470 return ciObjArrayKlass::make_impl(elem_klass);
471 }
472 }
473
474 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
475 // Look inside the constant pool for pre-resolved class entries.
476 for (int i = cpool->length() - 1; i >= 1; i--) {
477 if (cpool->tag_at(i).is_klass()) {
478 Klass* kls = cpool->resolved_klass_at(i);
479 if (kls->name() == sym) {
480 found_klass = kls;
481 break;
482 }
483 }
484 }
485 }
486
487 if (found_klass != NULL) {
488 // Found it. Build a CI handle.
489 return get_klass(found_klass);
490 }
491
492 if (require_local) return NULL;
493
494 // Not yet loaded into the VM, or not governed by loader constraints.
495 // Make a CI representative for it.
496 return get_unloaded_klass(accessing_klass, name);
497 }
498
499 // ------------------------------------------------------------------
500 // ciEnv::get_klass_by_name
501 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
502 ciSymbol* klass_name,
503 bool require_local) {
504 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
505 constantPoolHandle(),
506 klass_name,
507 require_local);)
508 }
509
510 // ------------------------------------------------------------------
511 // ciEnv::get_klass_by_index_impl
512 //
513 // Implementation of get_klass_by_index.
514 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
515 int index,
516 bool& is_accessible,
517 ciInstanceKlass* accessor) {
518 EXCEPTION_CONTEXT;
519 Klass* klass = NULL;
520 Symbol* klass_name = NULL;
521
522 if (cpool->tag_at(index).is_symbol()) {
523 klass_name = cpool->symbol_at(index);
524 } else {
525 // Check if it's resolved if it's not a symbol constant pool entry.
526 klass = ConstantPool::klass_at_if_loaded(cpool, index);
527 // Try to look it up by name.
528 if (klass == NULL) {
529 klass_name = cpool->klass_name_at(index);
530 }
531 }
532
533 if (klass == NULL) {
534 // Not found in constant pool. Use the name to do the lookup.
535 ciKlass* k = get_klass_by_name_impl(accessor,
536 cpool,
537 get_symbol(klass_name),
538 false);
539 // Calculate accessibility the hard way.
540 if (!k->is_loaded()) {
541 is_accessible = false;
542 } else if (!oopDesc::equals(k->loader(), accessor->loader()) &&
543 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
544 // Loaded only remotely. Not linked yet.
545 is_accessible = false;
546 } else {
547 // Linked locally, and we must also check public/private, etc.
548 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
549 }
550 return k;
551 }
552
553 // Check for prior unloaded klass. The SystemDictionary's answers
554 // can vary over time but the compiler needs consistency.
555 ciSymbol* name = get_symbol(klass->name());
556 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
557 if (unloaded_klass != NULL) {
558 is_accessible = false;
559 return unloaded_klass;
560 }
561
562 // It is known to be accessible, since it was found in the constant pool.
563 is_accessible = true;
564 return get_klass(klass);
565 }
566
567 // ------------------------------------------------------------------
568 // ciEnv::get_klass_by_index
569 //
570 // Get a klass from the constant pool.
571 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
572 int index,
573 bool& is_accessible,
574 ciInstanceKlass* accessor) {
575 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
576 }
577
578 // ------------------------------------------------------------------
579 // ciEnv::get_constant_by_index_impl
580 //
581 // Implementation of get_constant_by_index().
582 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
583 int pool_index, int cache_index,
584 ciInstanceKlass* accessor) {
585 bool ignore_will_link;
586 EXCEPTION_CONTEXT;
587 int index = pool_index;
588 if (cache_index >= 0) {
589 assert(index < 0, "only one kind of index at a time");
590 index = cpool->object_to_cp_index(cache_index);
591 oop obj = cpool->resolved_references()->obj_at(cache_index);
592 if (obj != NULL) {
593 if (oopDesc::equals(obj, Universe::the_null_sentinel())) {
594 return ciConstant(T_OBJECT, get_object(NULL));
595 }
596 BasicType bt = T_OBJECT;
597 if (cpool->tag_at(index).is_dynamic_constant())
598 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index));
599 if (is_reference_type(bt)) {
600 } else {
601 // we have to unbox the primitive value
602 if (!is_java_primitive(bt)) return ciConstant();
603 jvalue value;
604 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
605 assert(bt2 == bt, "");
606 switch (bt2) {
607 case T_DOUBLE: return ciConstant(value.d);
608 case T_FLOAT: return ciConstant(value.f);
609 case T_LONG: return ciConstant(value.j);
610 case T_INT: return ciConstant(bt2, value.i);
611 case T_SHORT: return ciConstant(bt2, value.s);
612 case T_BYTE: return ciConstant(bt2, value.b);
613 case T_CHAR: return ciConstant(bt2, value.c);
614 case T_BOOLEAN: return ciConstant(bt2, value.z);
615 default: return ciConstant();
616 }
617 }
618 ciObject* ciobj = get_object(obj);
619 if (ciobj->is_array()) {
620 return ciConstant(T_ARRAY, ciobj);
621 } else {
622 assert(ciobj->is_instance(), "should be an instance");
623 return ciConstant(T_OBJECT, ciobj);
624 }
625 }
626 }
627 constantTag tag = cpool->tag_at(index);
628 if (tag.is_int()) {
629 return ciConstant(T_INT, (jint)cpool->int_at(index));
630 } else if (tag.is_long()) {
631 return ciConstant((jlong)cpool->long_at(index));
632 } else if (tag.is_float()) {
633 return ciConstant((jfloat)cpool->float_at(index));
634 } else if (tag.is_double()) {
635 return ciConstant((jdouble)cpool->double_at(index));
636 } else if (tag.is_string()) {
637 oop string = NULL;
638 assert(cache_index >= 0, "should have a cache index");
639 if (cpool->is_pseudo_string_at(index)) {
640 string = cpool->pseudo_string_at(index, cache_index);
641 } else {
642 string = cpool->string_at(index, cache_index, THREAD);
643 if (HAS_PENDING_EXCEPTION) {
644 CLEAR_PENDING_EXCEPTION;
645 record_out_of_memory_failure();
646 return ciConstant();
647 }
648 }
649 ciObject* constant = get_object(string);
650 if (constant->is_array()) {
651 return ciConstant(T_ARRAY, constant);
652 } else {
653 assert (constant->is_instance(), "must be an instance, or not? ");
654 return ciConstant(T_OBJECT, constant);
655 }
656 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
657 // 4881222: allow ldc to take a class type
658 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
659 if (HAS_PENDING_EXCEPTION) {
660 CLEAR_PENDING_EXCEPTION;
661 record_out_of_memory_failure();
662 return ciConstant();
663 }
664 assert (klass->is_instance_klass() || klass->is_array_klass(),
665 "must be an instance or array klass ");
666 return ciConstant(T_OBJECT, klass->java_mirror());
667 } else if (tag.is_method_type()) {
668 // must execute Java code to link this CP entry into cache[i].f1
669 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
670 ciObject* ciobj = get_unloaded_method_type_constant(signature);
671 return ciConstant(T_OBJECT, ciobj);
672 } else if (tag.is_method_handle()) {
673 // must execute Java code to link this CP entry into cache[i].f1
674 int ref_kind = cpool->method_handle_ref_kind_at(index);
675 int callee_index = cpool->method_handle_klass_index_at(index);
676 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
677 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
678 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
679 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
680 return ciConstant(T_OBJECT, ciobj);
681 } else if (tag.is_dynamic_constant()) {
682 return ciConstant();
683 } else {
684 ShouldNotReachHere();
685 return ciConstant();
686 }
687 }
688
689 // ------------------------------------------------------------------
690 // ciEnv::get_constant_by_index
691 //
692 // Pull a constant out of the constant pool. How appropriate.
693 //
694 // Implementation note: this query is currently in no way cached.
695 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
696 int pool_index, int cache_index,
697 ciInstanceKlass* accessor) {
698 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
699 }
700
701 // ------------------------------------------------------------------
702 // ciEnv::get_field_by_index_impl
703 //
704 // Implementation of get_field_by_index.
705 //
706 // Implementation note: the results of field lookups are cached
707 // in the accessor klass.
708 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
709 int index) {
710 ciConstantPoolCache* cache = accessor->field_cache();
711 if (cache == NULL) {
712 ciField* field = new (arena()) ciField(accessor, index);
713 return field;
714 } else {
715 ciField* field = (ciField*)cache->get(index);
716 if (field == NULL) {
717 field = new (arena()) ciField(accessor, index);
718 cache->insert(index, field);
719 }
720 return field;
721 }
722 }
723
724 // ------------------------------------------------------------------
725 // ciEnv::get_field_by_index
726 //
727 // Get a field by index from a klass's constant pool.
728 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
729 int index) {
730 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
731 }
732
733 // ------------------------------------------------------------------
734 // ciEnv::lookup_method
735 //
736 // Perform an appropriate method lookup based on accessor, holder,
737 // name, signature, and bytecode.
738 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
739 ciKlass* holder,
740 Symbol* name,
741 Symbol* sig,
742 Bytecodes::Code bc,
743 constantTag tag) {
744 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
745 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
746
747 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
748 Klass* holder_klass = holder->get_Klass();
749 methodHandle dest_method;
750 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
751 switch (bc) {
752 case Bytecodes::_invokestatic:
753 dest_method =
754 LinkResolver::resolve_static_call_or_null(link_info);
755 break;
756 case Bytecodes::_invokespecial:
757 dest_method =
758 LinkResolver::resolve_special_call_or_null(link_info);
759 break;
760 case Bytecodes::_invokeinterface:
761 dest_method =
762 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
763 break;
764 case Bytecodes::_invokevirtual:
765 dest_method =
766 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
767 break;
768 default: ShouldNotReachHere();
769 }
770
771 return dest_method();
772 }
773
774
775 // ------------------------------------------------------------------
776 // ciEnv::get_method_by_index_impl
777 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
778 int index, Bytecodes::Code bc,
779 ciInstanceKlass* accessor) {
780 if (bc == Bytecodes::_invokedynamic) {
781 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
782 bool is_resolved = !cpce->is_f1_null();
783 // FIXME: code generation could allow for null (unlinked) call site
784 // The call site could be made patchable as follows:
785 // Load the appendix argument from the constant pool.
786 // Test the appendix argument and jump to a known deopt routine if it is null.
787 // Jump through a patchable call site, which is initially a deopt routine.
788 // Patch the call site to the nmethod entry point of the static compiled lambda form.
789 // As with other two-component call sites, both values must be independently verified.
790
791 if (is_resolved) {
792 // Get the invoker Method* from the constant pool.
793 // (The appendix argument, if any, will be noted in the method's signature.)
794 Method* adapter = cpce->f1_as_method();
795 return get_method(adapter);
796 }
797
798 // Fake a method that is equivalent to a declared method.
799 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
800 ciSymbol* name = ciSymbol::invokeBasic_name();
801 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
802 return get_unloaded_method(holder, name, signature, accessor);
803 } else {
804 const int holder_index = cpool->klass_ref_index_at(index);
805 bool holder_is_accessible;
806 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
807
808 // Get the method's name and signature.
809 Symbol* name_sym = cpool->name_ref_at(index);
810 Symbol* sig_sym = cpool->signature_ref_at(index);
811
812 if (cpool->has_preresolution()
813 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
814 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
815 // Short-circuit lookups for JSR 292-related call sites.
816 // That is, do not rely only on name-based lookups, because they may fail
817 // if the names are not resolvable in the boot class loader (7056328).
818 switch (bc) {
819 case Bytecodes::_invokevirtual:
820 case Bytecodes::_invokeinterface:
821 case Bytecodes::_invokespecial:
822 case Bytecodes::_invokestatic:
823 {
824 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
825 if (m != NULL) {
826 return get_method(m);
827 }
828 }
829 break;
830 default:
831 break;
832 }
833 }
834
835 if (holder_is_accessible) { // Our declared holder is loaded.
836 constantTag tag = cpool->tag_ref_at(index);
837 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
838 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
839 if (m != NULL &&
840 (bc == Bytecodes::_invokestatic
841 ? m->method_holder()->is_not_initialized()
842 : !m->method_holder()->is_loaded())) {
843 m = NULL;
844 }
845 #ifdef ASSERT
846 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
847 m = NULL;
848 }
849 #endif
850 if (m != NULL) {
851 // We found the method.
852 return get_method(m);
853 }
854 }
855
856 // Either the declared holder was not loaded, or the method could
857 // not be found. Create a dummy ciMethod to represent the failed
858 // lookup.
859 ciSymbol* name = get_symbol(name_sym);
860 ciSymbol* signature = get_symbol(sig_sym);
861 return get_unloaded_method(holder, name, signature, accessor);
862 }
863 }
864
865
866 // ------------------------------------------------------------------
867 // ciEnv::get_instance_klass_for_declared_method_holder
868 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
869 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
870 // instead of a ciInstanceKlass. For that case simply pretend that the
871 // declared holder is Object.clone since that's where the call will bottom out.
872 // A more correct fix would trickle out through many interfaces in CI,
873 // requiring ciInstanceKlass* to become ciKlass* and many more places would
874 // require checks to make sure the expected type was found. Given that this
875 // only occurs for clone() the more extensive fix seems like overkill so
876 // instead we simply smear the array type into Object.
877 guarantee(method_holder != NULL, "no method holder");
878 if (method_holder->is_instance_klass()) {
879 return method_holder->as_instance_klass();
880 } else if (method_holder->is_array_klass()) {
881 return current()->Object_klass();
882 } else {
883 ShouldNotReachHere();
884 }
885 return NULL;
886 }
887
888
889 // ------------------------------------------------------------------
890 // ciEnv::get_method_by_index
891 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
892 int index, Bytecodes::Code bc,
893 ciInstanceKlass* accessor) {
894 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
895 }
896
897
898 // ------------------------------------------------------------------
899 // ciEnv::name_buffer
900 char *ciEnv::name_buffer(int req_len) {
901 if (_name_buffer_len < req_len) {
902 if (_name_buffer == NULL) {
903 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
904 _name_buffer_len = req_len;
905 } else {
906 _name_buffer =
907 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
908 _name_buffer_len = req_len;
909 }
910 }
911 return _name_buffer;
912 }
913
914 // ------------------------------------------------------------------
915 // ciEnv::is_in_vm
916 bool ciEnv::is_in_vm() {
917 return JavaThread::current()->thread_state() == _thread_in_vm;
918 }
919
920 // ------------------------------------------------------------------
921 // ciEnv::validate_compile_task_dependencies
922 //
923 // Check for changes during compilation (e.g. class loads, evolution,
924 // breakpoints, call site invalidation).
925 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
926 if (failing()) return; // no need for further checks
927
928 Dependencies::DepType result = dependencies()->validate_dependencies(_task);
929 if (result != Dependencies::end_marker) {
930 if (result == Dependencies::call_site_target_value) {
931 _inc_decompile_count_on_failure = false;
932 record_failure("call site target change");
933 } else if (Dependencies::is_klass_type(result)) {
934 record_failure("concurrent class loading");
935 } else {
936 record_failure("invalid non-klass dependency");
937 }
938 }
939 }
940
941 // ------------------------------------------------------------------
942 // ciEnv::register_method
943 void ciEnv::register_method(ciMethod* target,
944 int entry_bci,
945 CodeOffsets* offsets,
946 int orig_pc_offset,
947 CodeBuffer* code_buffer,
948 int frame_words,
949 OopMapSet* oop_map_set,
950 ExceptionHandlerTable* handler_table,
951 ImplicitExceptionTable* inc_table,
952 AbstractCompiler* compiler,
953 bool has_unsafe_access,
954 bool has_wide_vectors,
955 RTMState rtm_state) {
956 VM_ENTRY_MARK;
957 nmethod* nm = NULL;
958 {
959 // To prevent compile queue updates.
960 MutexLocker locker(MethodCompileQueue_lock, THREAD);
961
962 // Prevent SystemDictionary::add_to_hierarchy from running
963 // and invalidating our dependencies until we install this method.
964 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
965 MutexLocker ml(Compile_lock);
966 NoSafepointVerifier nsv;
967
968 // Change in Jvmti state may invalidate compilation.
969 if (!failing() && jvmti_state_changed()) {
970 record_failure("Jvmti state change invalidated dependencies");
971 }
972
973 // Change in DTrace flags may invalidate compilation.
974 if (!failing() &&
975 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
976 (!dtrace_method_probes() && DTraceMethodProbes) ||
977 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
978 record_failure("DTrace flags change invalidated dependencies");
979 }
980
981 if (!failing() && target->needs_clinit_barrier() &&
982 target->holder()->is_in_error_state()) {
983 record_failure("method holder is in error state");
984 }
985
986 if (!failing()) {
987 if (log() != NULL) {
988 // Log the dependencies which this compilation declares.
989 dependencies()->log_all_dependencies();
990 }
991
992 // Encode the dependencies now, so we can check them right away.
993 dependencies()->encode_content_bytes();
994
995 // Check for {class loads, evolution, breakpoints, ...} during compilation
996 validate_compile_task_dependencies(target);
997 }
998
999 methodHandle method(THREAD, target->get_Method());
1000
1001 #if INCLUDE_RTM_OPT
1002 if (!failing() && (rtm_state != NoRTM) &&
1003 (method()->method_data() != NULL) &&
1004 (method()->method_data()->rtm_state() != rtm_state)) {
1005 // Preemptive decompile if rtm state was changed.
1006 record_failure("RTM state change invalidated rtm code");
1007 }
1008 #endif
1009
1010 if (failing()) {
1011 // While not a true deoptimization, it is a preemptive decompile.
1012 MethodData* mdo = method()->method_data();
1013 if (mdo != NULL && _inc_decompile_count_on_failure) {
1014 mdo->inc_decompile_count();
1015 }
1016
1017 // All buffers in the CodeBuffer are allocated in the CodeCache.
1018 // If the code buffer is created on each compile attempt
1019 // as in C2, then it must be freed.
1020 code_buffer->free_blob();
1021 return;
1022 }
1023
1024 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1025 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1026
1027 nm = nmethod::new_nmethod(method,
1028 compile_id(),
1029 entry_bci,
1030 offsets,
1031 orig_pc_offset,
1032 debug_info(), dependencies(), code_buffer,
1033 frame_words, oop_map_set,
1034 handler_table, inc_table,
1035 compiler, task()->comp_level());
1036
1037 // Free codeBlobs
1038 code_buffer->free_blob();
1039
1040 if (nm != NULL) {
1041 nm->set_has_unsafe_access(has_unsafe_access);
1042 nm->set_has_wide_vectors(has_wide_vectors);
1043 #if INCLUDE_RTM_OPT
1044 nm->set_rtm_state(rtm_state);
1045 #endif
1046
1047 // Record successful registration.
1048 // (Put nm into the task handle *before* publishing to the Java heap.)
1049 if (task() != NULL) {
1050 task()->set_code(nm);
1051 }
1052
1053 if (entry_bci == InvocationEntryBci) {
1054 if (TieredCompilation) {
1055 // If there is an old version we're done with it
1056 CompiledMethod* old = method->code();
1057 if (TraceMethodReplacement && old != NULL) {
1058 ResourceMark rm;
1059 char *method_name = method->name_and_sig_as_C_string();
1060 tty->print_cr("Replacing method %s", method_name);
1061 }
1062 if (old != NULL) {
1063 old->make_not_used();
1064 }
1065 }
1066
1067 LogTarget(Info, nmethod, install) lt;
1068 if (lt.is_enabled()) {
1069 ResourceMark rm;
1070 char *method_name = method->name_and_sig_as_C_string();
1071 lt.print("Installing method (%d) %s ",
1072 task()->comp_level(), method_name);
1073 }
1074 // Allow the code to be executed
1075 method->set_code(method, nm);
1076 } else {
1077 LogTarget(Info, nmethod, install) lt;
1078 if (lt.is_enabled()) {
1079 ResourceMark rm;
1080 char *method_name = method->name_and_sig_as_C_string();
1081 lt.print("Installing osr method (%d) %s @ %d",
1082 task()->comp_level(), method_name, entry_bci);
1083 }
1084 method->method_holder()->add_osr_nmethod(nm);
1085 }
1086 nm->make_in_use();
1087 }
1088 } // safepoints are allowed again
1089
1090 if (nm != NULL) {
1091 // JVMTI -- compiled method notification (must be done outside lock)
1092 nm->post_compiled_method_load_event();
1093 } else {
1094 // The CodeCache is full.
1095 record_failure("code cache is full");
1096 }
1097 }
1098
1099
1100 // ------------------------------------------------------------------
1101 // ciEnv::find_system_klass
1102 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1103 VM_ENTRY_MARK;
1104 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1105 }
1106
1107 // ------------------------------------------------------------------
1108 // ciEnv::comp_level
1109 int ciEnv::comp_level() {
1110 if (task() == NULL) return CompLevel_highest_tier;
1111 return task()->comp_level();
1112 }
1113
1114 // ------------------------------------------------------------------
1115 // ciEnv::compile_id
1116 uint ciEnv::compile_id() {
1117 if (task() == NULL) return 0;
1118 return task()->compile_id();
1119 }
1120
1121 // ------------------------------------------------------------------
1122 // ciEnv::notice_inlined_method()
1123 void ciEnv::notice_inlined_method(ciMethod* method) {
1124 _num_inlined_bytecodes += method->code_size_for_inlining();
1125 }
1126
1127 // ------------------------------------------------------------------
1128 // ciEnv::num_inlined_bytecodes()
1129 int ciEnv::num_inlined_bytecodes() const {
1130 return _num_inlined_bytecodes;
1131 }
1132
1133 // ------------------------------------------------------------------
1134 // ciEnv::record_failure()
1135 void ciEnv::record_failure(const char* reason) {
1136 if (_failure_reason == NULL) {
1137 // Record the first failure reason.
1138 _failure_reason = reason;
1139 }
1140 }
1141
1142 void ciEnv::report_failure(const char* reason) {
1143 EventCompilationFailure event;
1144 if (event.should_commit()) {
1145 event.set_compileId(compile_id());
1146 event.set_failureMessage(reason);
1147 event.commit();
1148 }
1149 }
1150
1151 // ------------------------------------------------------------------
1152 // ciEnv::record_method_not_compilable()
1153 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1154 int new_compilable =
1155 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1156
1157 // Only note transitions to a worse state
1158 if (new_compilable > _compilable) {
1159 if (log() != NULL) {
1160 if (all_tiers) {
1161 log()->elem("method_not_compilable");
1162 } else {
1163 log()->elem("method_not_compilable_at_tier level='%d'",
1164 current()->task()->comp_level());
1165 }
1166 }
1167 _compilable = new_compilable;
1168
1169 // Reset failure reason; this one is more important.
1170 _failure_reason = NULL;
1171 record_failure(reason);
1172 }
1173 }
1174
1175 // ------------------------------------------------------------------
1176 // ciEnv::record_out_of_memory_failure()
1177 void ciEnv::record_out_of_memory_failure() {
1178 // If memory is low, we stop compiling methods.
1179 record_method_not_compilable("out of memory");
1180 }
1181
1182 ciInstance* ciEnv::unloaded_ciinstance() {
1183 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1184 }
1185
1186 // ------------------------------------------------------------------
1187 // ciEnv::dump_replay_data*
1188
1189 // Don't change thread state and acquire any locks.
1190 // Safe to call from VM error reporter.
1191
1192 void ciEnv::dump_compile_data(outputStream* out) {
1193 CompileTask* task = this->task();
1194 if (task) {
1195 Method* method = task->method();
1196 int entry_bci = task->osr_bci();
1197 int comp_level = task->comp_level();
1198 out->print("compile %s %s %s %d %d",
1199 method->klass_name()->as_quoted_ascii(),
1200 method->name()->as_quoted_ascii(),
1201 method->signature()->as_quoted_ascii(),
1202 entry_bci, comp_level);
1203 if (compiler_data() != NULL) {
1204 if (is_c2_compile(comp_level)) {
1205 #ifdef COMPILER2
1206 // Dump C2 inlining data.
1207 ((Compile*)compiler_data())->dump_inline_data(out);
1208 #endif
1209 } else if (is_c1_compile(comp_level)) {
1210 #ifdef COMPILER1
1211 // Dump C1 inlining data.
1212 ((Compilation*)compiler_data())->dump_inline_data(out);
1213 #endif
1214 }
1215 }
1216 out->cr();
1217 }
1218 }
1219
1220 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1221 ResourceMark rm;
1222 #if INCLUDE_JVMTI
1223 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1224 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1225 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1226 #endif // INCLUDE_JVMTI
1227
1228 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1229 out->print_cr("# %d ciObject found", objects->length());
1230 for (int i = 0; i < objects->length(); i++) {
1231 objects->at(i)->dump_replay_data(out);
1232 }
1233 dump_compile_data(out);
1234 out->flush();
1235 }
1236
1237 void ciEnv::dump_replay_data(outputStream* out) {
1238 GUARDED_VM_ENTRY(
1239 MutexLocker ml(Compile_lock);
1240 dump_replay_data_unsafe(out);
1241 )
1242 }
1243
1244 void ciEnv::dump_replay_data(int compile_id) {
1245 static char buffer[O_BUFLEN];
1246 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1247 if (ret > 0) {
1248 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1249 if (fd != -1) {
1250 FILE* replay_data_file = os::open(fd, "w");
1251 if (replay_data_file != NULL) {
1252 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1253 dump_replay_data(&replay_data_stream);
1254 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1255 } else {
1256 tty->print_cr("# Can't open file to dump replay data.");
1257 }
1258 }
1259 }
1260 }
1261
1262 void ciEnv::dump_inline_data(int compile_id) {
1263 static char buffer[O_BUFLEN];
1264 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1265 if (ret > 0) {
1266 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1267 if (fd != -1) {
1268 FILE* inline_data_file = os::open(fd, "w");
1269 if (inline_data_file != NULL) {
1270 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1271 GUARDED_VM_ENTRY(
1272 MutexLocker ml(Compile_lock);
1273 dump_compile_data(&replay_data_stream);
1274 )
1275 replay_data_stream.flush();
1276 tty->print("# Compiler inline data is saved as: ");
1277 tty->print_cr("%s", buffer);
1278 } else {
1279 tty->print_cr("# Can't open file to dump inline data.");
1280 }
1281 }
1282 }
1283 }