1 /*
2 * Copyright (c) 1999, 2020, 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/compilerEvent.hpp"
43 #include "compiler/compileLog.hpp"
44 #include "compiler/disassembler.hpp"
45 #include "gc/shared/collectedHeap.inline.hpp"
46 #include "interpreter/linkResolver.hpp"
47 #include "jfr/jfrEvents.hpp"
48 #include "logging/log.hpp"
49 #include "memory/allocation.inline.hpp"
50 #include "memory/oopFactory.hpp"
51 #include "memory/resourceArea.hpp"
52 #include "memory/universe.hpp"
53 #include "oops/constantPool.inline.hpp"
54 #include "oops/cpCache.inline.hpp"
55 #include "oops/method.inline.hpp"
56 #include "oops/methodData.hpp"
57 #include "oops/objArrayKlass.hpp"
58 #include "oops/objArrayOop.inline.hpp"
59 #include "oops/oop.inline.hpp"
60 #include "prims/jvmtiExport.hpp"
61 #include "runtime/handles.inline.hpp"
62 #include "runtime/init.hpp"
63 #include "runtime/reflection.hpp"
64 #include "runtime/jniHandles.inline.hpp"
65 #include "runtime/safepointVerifiers.hpp"
66 #include "runtime/sharedRuntime.hpp"
67 #include "runtime/thread.inline.hpp"
68 #include "utilities/dtrace.hpp"
69 #include "utilities/macros.hpp"
70 #ifdef COMPILER1
71 #include "c1/c1_Runtime1.hpp"
72 #endif
73 #ifdef COMPILER2
74 #include "opto/runtime.hpp"
75 #endif
76
77 // ciEnv
78 //
79 // This class is the top level broker for requests from the compiler
80 // to the VM.
81
82 ciObject* ciEnv::_null_object_instance;
83
84 #define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL;
85 WK_KLASSES_DO(WK_KLASS_DEFN)
86 #undef WK_KLASS_DEFN
87
88 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
89 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
90 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
91
92 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
93 jobject ciEnv::_ArrayStoreException_handle = NULL;
94 jobject ciEnv::_ClassCastException_handle = NULL;
95
96 #ifndef PRODUCT
97 static bool firstEnv = true;
98 #endif /* PRODUCT */
99
100 // ------------------------------------------------------------------
101 // ciEnv::ciEnv
102 ciEnv::ciEnv(CompileTask* task)
103 : _ciEnv_arena(mtCompiler) {
104 VM_ENTRY_MARK;
105
106 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
107 thread->set_env(this);
108 assert(ciEnv::current() == this, "sanity");
109
110 _oop_recorder = NULL;
111 _debug_info = NULL;
112 _dependencies = NULL;
113 _failure_reason = NULL;
114 _inc_decompile_count_on_failure = true;
115 _compilable = MethodCompilable;
116 _break_at_compile = false;
117 _compiler_data = NULL;
118 #ifndef PRODUCT
119 assert(!firstEnv, "not initialized properly");
120 #endif /* !PRODUCT */
121
122 _num_inlined_bytecodes = 0;
123 assert(task == NULL || thread->task() == task, "sanity");
124 if (task != NULL) {
125 task->mark_started(os::elapsed_counter());
126 }
127 _task = task;
128 _log = NULL;
129
130 // Temporary buffer for creating symbols and such.
131 _name_buffer = NULL;
132 _name_buffer_len = 0;
133
134 _arena = &_ciEnv_arena;
135 _factory = new (_arena) ciObjectFactory(_arena, 128);
136
137 // Preload commonly referenced system ciObjects.
138
139 // During VM initialization, these instances have not yet been created.
140 // Assertions ensure that these instances are not accessed before
141 // their initialization.
142
143 assert(Universe::is_fully_initialized(), "should be complete");
144
145 oop o = Universe::null_ptr_exception_instance();
146 assert(o != NULL, "should have been initialized");
147 _NullPointerException_instance = get_object(o)->as_instance();
148 o = Universe::arithmetic_exception_instance();
149 assert(o != NULL, "should have been initialized");
150 _ArithmeticException_instance = get_object(o)->as_instance();
151
152 _ArrayIndexOutOfBoundsException_instance = NULL;
153 _ArrayStoreException_instance = NULL;
154 _ClassCastException_instance = NULL;
155 _the_null_string = NULL;
156 _the_min_jint_string = NULL;
157
158 _jvmti_redefinition_count = 0;
159 _jvmti_can_hotswap_or_post_breakpoint = false;
160 _jvmti_can_access_local_variables = false;
161 _jvmti_can_post_on_exceptions = false;
162 _jvmti_can_pop_frame = false;
163 }
164
165 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
166 ASSERT_IN_VM;
167
168 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
169 CompilerThread* current_thread = CompilerThread::current();
170 assert(current_thread->env() == NULL, "must be");
171 current_thread->set_env(this);
172 assert(ciEnv::current() == this, "sanity");
173
174 _oop_recorder = NULL;
175 _debug_info = NULL;
176 _dependencies = NULL;
177 _failure_reason = NULL;
178 _inc_decompile_count_on_failure = true;
179 _compilable = MethodCompilable_never;
180 _break_at_compile = false;
181 _compiler_data = NULL;
182 #ifndef PRODUCT
183 assert(firstEnv, "must be first");
184 firstEnv = false;
185 #endif /* !PRODUCT */
186
187 _num_inlined_bytecodes = 0;
188 _task = NULL;
189 _log = NULL;
190
191 // Temporary buffer for creating symbols and such.
192 _name_buffer = NULL;
193 _name_buffer_len = 0;
194
195 _arena = arena;
196 _factory = new (_arena) ciObjectFactory(_arena, 128);
197
198 // Preload commonly referenced system ciObjects.
199
200 // During VM initialization, these instances have not yet been created.
201 // Assertions ensure that these instances are not accessed before
202 // their initialization.
203
204 assert(Universe::is_fully_initialized(), "must be");
205
206 _NullPointerException_instance = NULL;
207 _ArithmeticException_instance = NULL;
208 _ArrayIndexOutOfBoundsException_instance = NULL;
209 _ArrayStoreException_instance = NULL;
210 _ClassCastException_instance = NULL;
211 _the_null_string = NULL;
212 _the_min_jint_string = NULL;
213
214 _jvmti_redefinition_count = 0;
215 _jvmti_can_hotswap_or_post_breakpoint = false;
216 _jvmti_can_access_local_variables = false;
217 _jvmti_can_post_on_exceptions = false;
218 _jvmti_can_pop_frame = false;
219 }
220
221 ciEnv::~ciEnv() {
222 GUARDED_VM_ENTRY(
223 CompilerThread* current_thread = CompilerThread::current();
224 _factory->remove_symbols();
225 // Need safepoint to clear the env on the thread. RedefineClasses might
226 // be reading it.
227 current_thread->set_env(NULL);
228 )
229 }
230
231 // ------------------------------------------------------------------
232 // Cache Jvmti state
233 void ciEnv::cache_jvmti_state() {
234 VM_ENTRY_MARK;
235 // Get Jvmti capabilities under lock to get consistant values.
236 MutexLocker mu(JvmtiThreadState_lock);
237 _jvmti_redefinition_count = JvmtiExport::redefinition_count();
238 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
239 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
240 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
241 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
242 _jvmti_can_get_owned_monitor_info = JvmtiExport::can_get_owned_monitor_info();
243 }
244
245 bool ciEnv::jvmti_state_changed() const {
246 // Some classes were redefined
247 if (_jvmti_redefinition_count != JvmtiExport::redefinition_count()) {
248 return true;
249 }
250
251 if (!_jvmti_can_access_local_variables &&
252 JvmtiExport::can_access_local_variables()) {
253 return true;
254 }
255 if (!_jvmti_can_hotswap_or_post_breakpoint &&
256 JvmtiExport::can_hotswap_or_post_breakpoint()) {
257 return true;
258 }
259 if (!_jvmti_can_post_on_exceptions &&
260 JvmtiExport::can_post_on_exceptions()) {
261 return true;
262 }
263 if (!_jvmti_can_pop_frame &&
264 JvmtiExport::can_pop_frame()) {
265 return true;
266 }
267 if (!_jvmti_can_get_owned_monitor_info &&
268 JvmtiExport::can_get_owned_monitor_info()) {
269 return true;
270 }
271
272 return false;
273 }
274
275 // ------------------------------------------------------------------
276 // Cache DTrace flags
277 void ciEnv::cache_dtrace_flags() {
278 // Need lock?
279 _dtrace_extended_probes = ExtendedDTraceProbes;
280 if (_dtrace_extended_probes) {
281 _dtrace_monitor_probes = true;
282 _dtrace_method_probes = true;
283 _dtrace_alloc_probes = true;
284 } else {
285 _dtrace_monitor_probes = DTraceMonitorProbes;
286 _dtrace_method_probes = DTraceMethodProbes;
287 _dtrace_alloc_probes = DTraceAllocProbes;
288 }
289 }
290
291 // ------------------------------------------------------------------
292 // helper for lazy exception creation
293 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
294 VM_ENTRY_MARK;
295 if (handle == NULL) {
296 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
297 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
298 jobject objh = NULL;
299 if (!HAS_PENDING_EXCEPTION && k != NULL) {
300 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
301 if (!HAS_PENDING_EXCEPTION)
302 objh = JNIHandles::make_global(Handle(THREAD, obj));
303 }
304 if (HAS_PENDING_EXCEPTION) {
305 CLEAR_PENDING_EXCEPTION;
306 } else {
307 handle = objh;
308 }
309 }
310 oop obj = JNIHandles::resolve(handle);
311 return obj == NULL? NULL: get_object(obj)->as_instance();
312 }
313
314 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
315 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
316 _ArrayIndexOutOfBoundsException_instance
317 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
318 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
319 }
320 return _ArrayIndexOutOfBoundsException_instance;
321 }
322 ciInstance* ciEnv::ArrayStoreException_instance() {
323 if (_ArrayStoreException_instance == NULL) {
324 _ArrayStoreException_instance
325 = get_or_create_exception(_ArrayStoreException_handle,
326 vmSymbols::java_lang_ArrayStoreException());
327 }
328 return _ArrayStoreException_instance;
329 }
330 ciInstance* ciEnv::ClassCastException_instance() {
331 if (_ClassCastException_instance == NULL) {
332 _ClassCastException_instance
333 = get_or_create_exception(_ClassCastException_handle,
334 vmSymbols::java_lang_ClassCastException());
335 }
336 return _ClassCastException_instance;
337 }
338
339 ciInstance* ciEnv::the_null_string() {
340 if (_the_null_string == NULL) {
341 VM_ENTRY_MARK;
342 _the_null_string = get_object(Universe::the_null_string())->as_instance();
343 }
344 return _the_null_string;
345 }
346
347 ciInstance* ciEnv::the_min_jint_string() {
348 if (_the_min_jint_string == NULL) {
349 VM_ENTRY_MARK;
350 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
351 }
352 return _the_min_jint_string;
353 }
354
355 // ------------------------------------------------------------------
356 // ciEnv::get_method_from_handle
357 ciMethod* ciEnv::get_method_from_handle(Method* method) {
358 VM_ENTRY_MARK;
359 return get_metadata(method)->as_method();
360 }
361
362 // ------------------------------------------------------------------
363 // ciEnv::array_element_offset_in_bytes
364 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
365 VM_ENTRY_MARK;
366 objArrayOop a = (objArrayOop)a_h->get_oop();
367 assert(a->is_objArray(), "");
368 int length = a->length();
369 oop o = o_h->get_oop();
370 for (int i = 0; i < length; i++) {
371 if (a->obj_at(i) == o) return i;
372 }
373 return -1;
374 }
375
376
377 // ------------------------------------------------------------------
378 // ciEnv::check_klass_accessiblity
379 //
380 // Note: the logic of this method should mirror the logic of
381 // ConstantPool::verify_constant_pool_resolve.
382 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
383 Klass* resolved_klass) {
384 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
385 return true;
386 }
387 if (accessing_klass->is_obj_array_klass()) {
388 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
389 }
390 if (!accessing_klass->is_instance_klass()) {
391 return true;
392 }
393
394 if (resolved_klass->is_objArray_klass()) {
395 // Find the element klass, if this is an array.
396 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
397 }
398 if (resolved_klass->is_instance_klass()) {
399 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
400 InstanceKlass::cast(resolved_klass),
401 true) == Reflection::ACCESS_OK);
402 }
403 return true;
404 }
405
406 // ------------------------------------------------------------------
407 // ciEnv::get_klass_by_name_impl
408 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
409 const constantPoolHandle& cpool,
410 ciSymbol* name,
411 bool require_local) {
412 ASSERT_IN_VM;
413 EXCEPTION_CONTEXT;
414
415 // Now we need to check the SystemDictionary
416 Symbol* sym = name->get_symbol();
417 if (Signature::has_envelope(sym)) {
418 // This is a name from a signature. Strip off the trimmings.
419 // Call recursive to keep scope of strippedsym.
420 TempNewSymbol strippedsym = Signature::strip_envelope(sym);
421 ciSymbol* strippedname = get_symbol(strippedsym);
422 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
423 }
424
425 // Check for prior unloaded klass. The SystemDictionary's answers
426 // can vary over time but the compiler needs consistency.
427 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
428 if (unloaded_klass != NULL) {
429 if (require_local) return NULL;
430 return unloaded_klass;
431 }
432
433 Handle loader(THREAD, (oop)NULL);
434 Handle domain(THREAD, (oop)NULL);
435 if (accessing_klass != NULL) {
436 loader = Handle(THREAD, accessing_klass->loader());
437 domain = Handle(THREAD, accessing_klass->protection_domain());
438 }
439
440 // setup up the proper type to return on OOM
441 ciKlass* fail_type;
442 if (sym->char_at(0) == JVM_SIGNATURE_ARRAY) {
443 fail_type = _unloaded_ciobjarrayklass;
444 } else {
445 fail_type = _unloaded_ciinstance_klass;
446 }
447 Klass* found_klass;
448 {
449 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
450 MutexLocker ml(Compile_lock);
451 Klass* kls;
452 if (!require_local) {
453 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
454 KILL_COMPILE_ON_FATAL_(fail_type));
455 } else {
456 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
457 KILL_COMPILE_ON_FATAL_(fail_type));
458 }
459 found_klass = kls;
460 }
461
462 // If we fail to find an array klass, look again for its element type.
463 // The element type may be available either locally or via constraints.
464 // In either case, if we can find the element type in the system dictionary,
465 // we must build an array type around it. The CI requires array klasses
466 // to be loaded if their element klasses are loaded, except when memory
467 // is exhausted.
468 if (Signature::is_array(sym) &&
469 (sym->char_at(1) == JVM_SIGNATURE_ARRAY || sym->char_at(1) == JVM_SIGNATURE_CLASS)) {
470 // We have an unloaded array.
471 // Build it on the fly if the element class exists.
472 SignatureStream ss(sym, false);
473 ss.skip_array_prefix(1);
474 // Get element ciKlass recursively.
475 ciKlass* elem_klass =
476 get_klass_by_name_impl(accessing_klass,
477 cpool,
478 get_symbol(ss.as_symbol()),
479 require_local);
480 if (elem_klass != NULL && elem_klass->is_loaded()) {
481 // Now make an array for it
482 return ciObjArrayKlass::make_impl(elem_klass);
483 }
484 }
485
486 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
487 // Look inside the constant pool for pre-resolved class entries.
488 for (int i = cpool->length() - 1; i >= 1; i--) {
489 if (cpool->tag_at(i).is_klass()) {
490 Klass* kls = cpool->resolved_klass_at(i);
491 if (kls->name() == sym) {
492 found_klass = kls;
493 break;
494 }
495 }
496 }
497 }
498
499 if (found_klass != NULL) {
500 // Found it. Build a CI handle.
501 return get_klass(found_klass);
502 }
503
504 if (require_local) return NULL;
505
506 // Not yet loaded into the VM, or not governed by loader constraints.
507 // Make a CI representative for it.
508 return get_unloaded_klass(accessing_klass, name);
509 }
510
511 // ------------------------------------------------------------------
512 // ciEnv::get_klass_by_name
513 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
514 ciSymbol* klass_name,
515 bool require_local) {
516 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
517 constantPoolHandle(),
518 klass_name,
519 require_local);)
520 }
521
522 // ------------------------------------------------------------------
523 // ciEnv::get_klass_by_index_impl
524 //
525 // Implementation of get_klass_by_index.
526 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
527 int index,
528 bool& is_accessible,
529 ciInstanceKlass* accessor) {
530 EXCEPTION_CONTEXT;
531 Klass* klass = NULL;
532 Symbol* klass_name = NULL;
533
534 if (cpool->tag_at(index).is_symbol()) {
535 klass_name = cpool->symbol_at(index);
536 } else {
537 // Check if it's resolved if it's not a symbol constant pool entry.
538 klass = ConstantPool::klass_at_if_loaded(cpool, index);
539 // Try to look it up by name.
540 if (klass == NULL) {
541 klass_name = cpool->klass_name_at(index);
542 }
543 }
544
545 if (klass == NULL) {
546 // Not found in constant pool. Use the name to do the lookup.
547 ciKlass* k = get_klass_by_name_impl(accessor,
548 cpool,
549 get_symbol(klass_name),
550 false);
551 // Calculate accessibility the hard way.
552 if (!k->is_loaded()) {
553 is_accessible = false;
554 } else if (k->loader() != accessor->loader() &&
555 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
556 // Loaded only remotely. Not linked yet.
557 is_accessible = false;
558 } else {
559 // Linked locally, and we must also check public/private, etc.
560 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
561 }
562 return k;
563 }
564
565 // Check for prior unloaded klass. The SystemDictionary's answers
566 // can vary over time but the compiler needs consistency.
567 ciSymbol* name = get_symbol(klass->name());
568 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
569 if (unloaded_klass != NULL) {
570 is_accessible = false;
571 return unloaded_klass;
572 }
573
574 // It is known to be accessible, since it was found in the constant pool.
575 is_accessible = true;
576 return get_klass(klass);
577 }
578
579 // ------------------------------------------------------------------
580 // ciEnv::get_klass_by_index
581 //
582 // Get a klass from the constant pool.
583 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
584 int index,
585 bool& is_accessible,
586 ciInstanceKlass* accessor) {
587 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
588 }
589
590 // ------------------------------------------------------------------
591 // ciEnv::get_constant_by_index_impl
592 //
593 // Implementation of get_constant_by_index().
594 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
595 int pool_index, int cache_index,
596 ciInstanceKlass* accessor) {
597 bool ignore_will_link;
598 EXCEPTION_CONTEXT;
599 int index = pool_index;
600 if (cache_index >= 0) {
601 assert(index < 0, "only one kind of index at a time");
602 index = cpool->object_to_cp_index(cache_index);
603 oop obj = cpool->resolved_references()->obj_at(cache_index);
604 if (obj != NULL) {
605 if (obj == Universe::the_null_sentinel()) {
606 return ciConstant(T_OBJECT, get_object(NULL));
607 }
608 BasicType bt = T_OBJECT;
609 if (cpool->tag_at(index).is_dynamic_constant())
610 bt = Signature::basic_type(cpool->uncached_signature_ref_at(index));
611 if (is_reference_type(bt)) {
612 } else {
613 // we have to unbox the primitive value
614 if (!is_java_primitive(bt)) return ciConstant();
615 jvalue value;
616 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
617 assert(bt2 == bt, "");
618 switch (bt2) {
619 case T_DOUBLE: return ciConstant(value.d);
620 case T_FLOAT: return ciConstant(value.f);
621 case T_LONG: return ciConstant(value.j);
622 case T_INT: return ciConstant(bt2, value.i);
623 case T_SHORT: return ciConstant(bt2, value.s);
624 case T_BYTE: return ciConstant(bt2, value.b);
625 case T_CHAR: return ciConstant(bt2, value.c);
626 case T_BOOLEAN: return ciConstant(bt2, value.z);
627 default: return ciConstant();
628 }
629 }
630 ciObject* ciobj = get_object(obj);
631 if (ciobj->is_array()) {
632 return ciConstant(T_ARRAY, ciobj);
633 } else {
634 assert(ciobj->is_instance(), "should be an instance");
635 return ciConstant(T_OBJECT, ciobj);
636 }
637 }
638 }
639 constantTag tag = cpool->tag_at(index);
640 if (tag.is_int()) {
641 return ciConstant(T_INT, (jint)cpool->int_at(index));
642 } else if (tag.is_long()) {
643 return ciConstant((jlong)cpool->long_at(index));
644 } else if (tag.is_float()) {
645 return ciConstant((jfloat)cpool->float_at(index));
646 } else if (tag.is_double()) {
647 return ciConstant((jdouble)cpool->double_at(index));
648 } else if (tag.is_string()) {
649 oop string = NULL;
650 assert(cache_index >= 0, "should have a cache index");
651 if (cpool->is_pseudo_string_at(index)) {
652 string = cpool->pseudo_string_at(index, cache_index);
653 } else {
654 string = cpool->string_at(index, cache_index, THREAD);
655 if (HAS_PENDING_EXCEPTION) {
656 CLEAR_PENDING_EXCEPTION;
657 record_out_of_memory_failure();
658 return ciConstant();
659 }
660 }
661 ciObject* constant = get_object(string);
662 if (constant->is_array()) {
663 return ciConstant(T_ARRAY, constant);
664 } else {
665 assert (constant->is_instance(), "must be an instance, or not? ");
666 return ciConstant(T_OBJECT, constant);
667 }
668 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
669 // 4881222: allow ldc to take a class type
670 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
671 if (HAS_PENDING_EXCEPTION) {
672 CLEAR_PENDING_EXCEPTION;
673 record_out_of_memory_failure();
674 return ciConstant();
675 }
676 assert (klass->is_instance_klass() || klass->is_array_klass(),
677 "must be an instance or array klass ");
678 return ciConstant(T_OBJECT, klass->java_mirror());
679 } else if (tag.is_method_type()) {
680 // must execute Java code to link this CP entry into cache[i].f1
681 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
682 ciObject* ciobj = get_unloaded_method_type_constant(signature);
683 return ciConstant(T_OBJECT, ciobj);
684 } else if (tag.is_method_handle()) {
685 // must execute Java code to link this CP entry into cache[i].f1
686 int ref_kind = cpool->method_handle_ref_kind_at(index);
687 int callee_index = cpool->method_handle_klass_index_at(index);
688 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
689 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
690 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
691 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
692 return ciConstant(T_OBJECT, ciobj);
693 } else if (tag.is_dynamic_constant()) {
694 return ciConstant();
695 } else {
696 ShouldNotReachHere();
697 return ciConstant();
698 }
699 }
700
701 // ------------------------------------------------------------------
702 // ciEnv::get_constant_by_index
703 //
704 // Pull a constant out of the constant pool. How appropriate.
705 //
706 // Implementation note: this query is currently in no way cached.
707 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
708 int pool_index, int cache_index,
709 ciInstanceKlass* accessor) {
710 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
711 }
712
713 // ------------------------------------------------------------------
714 // ciEnv::get_field_by_index_impl
715 //
716 // Implementation of get_field_by_index.
717 //
718 // Implementation note: the results of field lookups are cached
719 // in the accessor klass.
720 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
721 int index) {
722 ciConstantPoolCache* cache = accessor->field_cache();
723 if (cache == NULL) {
724 ciField* field = new (arena()) ciField(accessor, index);
725 return field;
726 } else {
727 ciField* field = (ciField*)cache->get(index);
728 if (field == NULL) {
729 field = new (arena()) ciField(accessor, index);
730 cache->insert(index, field);
731 }
732 return field;
733 }
734 }
735
736 // ------------------------------------------------------------------
737 // ciEnv::get_field_by_index
738 //
739 // Get a field by index from a klass's constant pool.
740 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
741 int index) {
742 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
743 }
744
745 // ------------------------------------------------------------------
746 // ciEnv::lookup_method
747 //
748 // Perform an appropriate method lookup based on accessor, holder,
749 // name, signature, and bytecode.
750 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
751 ciKlass* holder,
752 Symbol* name,
753 Symbol* sig,
754 Bytecodes::Code bc,
755 constantTag tag) {
756 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
757 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
758
759 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
760 Klass* holder_klass = holder->get_Klass();
761 Method* dest_method;
762 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
763 switch (bc) {
764 case Bytecodes::_invokestatic:
765 dest_method =
766 LinkResolver::resolve_static_call_or_null(link_info);
767 break;
768 case Bytecodes::_invokespecial:
769 dest_method =
770 LinkResolver::resolve_special_call_or_null(link_info);
771 break;
772 case Bytecodes::_invokeinterface:
773 dest_method =
774 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
775 break;
776 case Bytecodes::_invokevirtual:
777 dest_method =
778 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
779 break;
780 default: ShouldNotReachHere();
781 }
782
783 return dest_method;
784 }
785
786
787 // ------------------------------------------------------------------
788 // ciEnv::get_method_by_index_impl
789 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
790 int index, Bytecodes::Code bc,
791 ciInstanceKlass* accessor) {
792 assert(cpool.not_null(), "need constant pool");
793 assert(accessor != NULL, "need origin of access");
794 if (bc == Bytecodes::_invokedynamic) {
795 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
796 bool is_resolved = !cpce->is_f1_null();
797 // FIXME: code generation could allow for null (unlinked) call site
798 // The call site could be made patchable as follows:
799 // Load the appendix argument from the constant pool.
800 // Test the appendix argument and jump to a known deopt routine if it is null.
801 // Jump through a patchable call site, which is initially a deopt routine.
802 // Patch the call site to the nmethod entry point of the static compiled lambda form.
803 // As with other two-component call sites, both values must be independently verified.
804
805 if (is_resolved) {
806 // Get the invoker Method* from the constant pool.
807 // (The appendix argument, if any, will be noted in the method's signature.)
808 Method* adapter = cpce->f1_as_method();
809 return get_method(adapter);
810 }
811
812 // Fake a method that is equivalent to a declared method.
813 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
814 ciSymbol* name = ciSymbol::invokeBasic_name();
815 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
816 return get_unloaded_method(holder, name, signature, accessor);
817 } else {
818 const int holder_index = cpool->klass_ref_index_at(index);
819 bool holder_is_accessible;
820 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
821
822 // Get the method's name and signature.
823 Symbol* name_sym = cpool->name_ref_at(index);
824 Symbol* sig_sym = cpool->signature_ref_at(index);
825
826 if (cpool->has_preresolution()
827 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
828 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
829 // Short-circuit lookups for JSR 292-related call sites.
830 // That is, do not rely only on name-based lookups, because they may fail
831 // if the names are not resolvable in the boot class loader (7056328).
832 switch (bc) {
833 case Bytecodes::_invokevirtual:
834 case Bytecodes::_invokeinterface:
835 case Bytecodes::_invokespecial:
836 case Bytecodes::_invokestatic:
837 {
838 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
839 if (m != NULL) {
840 return get_method(m);
841 }
842 }
843 break;
844 default:
845 break;
846 }
847 }
848
849 if (holder_is_accessible) { // Our declared holder is loaded.
850 constantTag tag = cpool->tag_ref_at(index);
851 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
852 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
853 if (m != NULL &&
854 (bc == Bytecodes::_invokestatic
855 ? m->method_holder()->is_not_initialized()
856 : !m->method_holder()->is_loaded())) {
857 m = NULL;
858 }
859 #ifdef ASSERT
860 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
861 m = NULL;
862 }
863 #endif
864 if (m != NULL) {
865 // We found the method.
866 return get_method(m);
867 }
868 }
869
870 // Either the declared holder was not loaded, or the method could
871 // not be found. Create a dummy ciMethod to represent the failed
872 // lookup.
873 ciSymbol* name = get_symbol(name_sym);
874 ciSymbol* signature = get_symbol(sig_sym);
875 return get_unloaded_method(holder, name, signature, accessor);
876 }
877 }
878
879
880 // ------------------------------------------------------------------
881 // ciEnv::get_instance_klass_for_declared_method_holder
882 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
883 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
884 // instead of a ciInstanceKlass. For that case simply pretend that the
885 // declared holder is Object.clone since that's where the call will bottom out.
886 // A more correct fix would trickle out through many interfaces in CI,
887 // requiring ciInstanceKlass* to become ciKlass* and many more places would
888 // require checks to make sure the expected type was found. Given that this
889 // only occurs for clone() the more extensive fix seems like overkill so
890 // instead we simply smear the array type into Object.
891 guarantee(method_holder != NULL, "no method holder");
892 if (method_holder->is_instance_klass()) {
893 return method_holder->as_instance_klass();
894 } else if (method_holder->is_array_klass()) {
895 return current()->Object_klass();
896 } else {
897 ShouldNotReachHere();
898 }
899 return NULL;
900 }
901
902
903 // ------------------------------------------------------------------
904 // ciEnv::get_method_by_index
905 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
906 int index, Bytecodes::Code bc,
907 ciInstanceKlass* accessor) {
908 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
909 }
910
911
912 // ------------------------------------------------------------------
913 // ciEnv::name_buffer
914 char *ciEnv::name_buffer(int req_len) {
915 if (_name_buffer_len < req_len) {
916 if (_name_buffer == NULL) {
917 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
918 _name_buffer_len = req_len;
919 } else {
920 _name_buffer =
921 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
922 _name_buffer_len = req_len;
923 }
924 }
925 return _name_buffer;
926 }
927
928 // ------------------------------------------------------------------
929 // ciEnv::is_in_vm
930 bool ciEnv::is_in_vm() {
931 return JavaThread::current()->thread_state() == _thread_in_vm;
932 }
933
934 // ------------------------------------------------------------------
935 // ciEnv::validate_compile_task_dependencies
936 //
937 // Check for changes during compilation (e.g. class loads, evolution,
938 // breakpoints, call site invalidation).
939 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
940 if (failing()) return; // no need for further checks
941
942 Dependencies::DepType result = dependencies()->validate_dependencies(_task);
943 if (result != Dependencies::end_marker) {
944 if (result == Dependencies::call_site_target_value) {
945 _inc_decompile_count_on_failure = false;
946 record_failure("call site target change");
947 } else if (Dependencies::is_klass_type(result)) {
948 record_failure("concurrent class loading");
949 } else {
950 record_failure("invalid non-klass dependency");
951 }
952 }
953 }
954
955 // ------------------------------------------------------------------
956 // ciEnv::register_method
957 void ciEnv::register_method(ciMethod* target,
958 int entry_bci,
959 CodeOffsets* offsets,
960 int orig_pc_offset,
961 CodeBuffer* code_buffer,
962 int frame_words,
963 OopMapSet* oop_map_set,
964 ExceptionHandlerTable* handler_table,
965 ImplicitExceptionTable* inc_table,
966 AbstractCompiler* compiler,
967 bool has_unsafe_access,
968 bool has_wide_vectors,
969 RTMState rtm_state) {
970 VM_ENTRY_MARK;
971 nmethod* nm = NULL;
972 {
973 // To prevent compile queue updates.
974 MutexLocker locker(THREAD, MethodCompileQueue_lock);
975
976 // Prevent SystemDictionary::add_to_hierarchy from running
977 // and invalidating our dependencies until we install this method.
978 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
979 MutexLocker ml(Compile_lock);
980 NoSafepointVerifier nsv;
981
982 // Change in Jvmti state may invalidate compilation.
983 if (!failing() && jvmti_state_changed()) {
984 record_failure("Jvmti state change invalidated dependencies");
985 }
986
987 // Change in DTrace flags may invalidate compilation.
988 if (!failing() &&
989 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
990 (!dtrace_method_probes() && DTraceMethodProbes) ||
991 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
992 record_failure("DTrace flags change invalidated dependencies");
993 }
994
995 if (!failing() && target->needs_clinit_barrier() &&
996 target->holder()->is_in_error_state()) {
997 record_failure("method holder is in error state");
998 }
999
1000 if (!failing()) {
1001 if (log() != NULL) {
1002 // Log the dependencies which this compilation declares.
1003 dependencies()->log_all_dependencies();
1004 }
1005
1006 // Encode the dependencies now, so we can check them right away.
1007 dependencies()->encode_content_bytes();
1008
1009 // Check for {class loads, evolution, breakpoints, ...} during compilation
1010 validate_compile_task_dependencies(target);
1011 }
1012
1013 methodHandle method(THREAD, target->get_Method());
1014
1015 #if INCLUDE_RTM_OPT
1016 if (!failing() && (rtm_state != NoRTM) &&
1017 (method()->method_data() != NULL) &&
1018 (method()->method_data()->rtm_state() != rtm_state)) {
1019 // Preemptive decompile if rtm state was changed.
1020 record_failure("RTM state change invalidated rtm code");
1021 }
1022 #endif
1023
1024 if (failing()) {
1025 // While not a true deoptimization, it is a preemptive decompile.
1026 MethodData* mdo = method()->method_data();
1027 if (mdo != NULL && _inc_decompile_count_on_failure) {
1028 mdo->inc_decompile_count();
1029 }
1030
1031 // All buffers in the CodeBuffer are allocated in the CodeCache.
1032 // If the code buffer is created on each compile attempt
1033 // as in C2, then it must be freed.
1034 code_buffer->free_blob();
1035 return;
1036 }
1037
1038 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1039 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1040
1041 nm = nmethod::new_nmethod(method,
1042 compile_id(),
1043 entry_bci,
1044 offsets,
1045 orig_pc_offset,
1046 debug_info(), dependencies(), code_buffer,
1047 frame_words, oop_map_set,
1048 handler_table, inc_table,
1049 compiler, task()->comp_level());
1050
1051 // Free codeBlobs
1052 code_buffer->free_blob();
1053
1054 if (nm != NULL) {
1055 nm->set_has_unsafe_access(has_unsafe_access);
1056 nm->set_has_wide_vectors(has_wide_vectors);
1057 #if INCLUDE_RTM_OPT
1058 nm->set_rtm_state(rtm_state);
1059 #endif
1060
1061 // Record successful registration.
1062 // (Put nm into the task handle *before* publishing to the Java heap.)
1063 if (task() != NULL) {
1064 task()->set_code(nm);
1065 }
1066
1067 if (entry_bci == InvocationEntryBci) {
1068 if (TieredCompilation) {
1069 // If there is an old version we're done with it
1070 CompiledMethod* old = method->code();
1071 if (TraceMethodReplacement && old != NULL) {
1072 ResourceMark rm;
1073 char *method_name = method->name_and_sig_as_C_string();
1074 tty->print_cr("Replacing method %s", method_name);
1075 }
1076 if (old != NULL) {
1077 old->make_not_used();
1078 }
1079 }
1080
1081 LogTarget(Info, nmethod, install) lt;
1082 if (lt.is_enabled()) {
1083 ResourceMark rm;
1084 char *method_name = method->name_and_sig_as_C_string();
1085 lt.print("Installing method (%d) %s ",
1086 task()->comp_level(), method_name);
1087 }
1088 // Allow the code to be executed
1089 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
1090 if (nm->make_in_use()) {
1091 method->set_code(method, nm);
1092 }
1093 } else {
1094 LogTarget(Info, nmethod, install) lt;
1095 if (lt.is_enabled()) {
1096 ResourceMark rm;
1097 char *method_name = method->name_and_sig_as_C_string();
1098 lt.print("Installing osr method (%d) %s @ %d",
1099 task()->comp_level(), method_name, entry_bci);
1100 }
1101 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
1102 if (nm->make_in_use()) {
1103 method->method_holder()->add_osr_nmethod(nm);
1104 }
1105 }
1106 }
1107 } // safepoints are allowed again
1108
1109 if (nm != NULL) {
1110 // JVMTI -- compiled method notification (must be done outside lock)
1111 nm->post_compiled_method_load_event();
1112 } else {
1113 // The CodeCache is full.
1114 record_failure("code cache is full");
1115 }
1116 }
1117
1118
1119 // ------------------------------------------------------------------
1120 // ciEnv::find_system_klass
1121 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1122 VM_ENTRY_MARK;
1123 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1124 }
1125
1126 // ------------------------------------------------------------------
1127 // ciEnv::comp_level
1128 int ciEnv::comp_level() {
1129 if (task() == NULL) return CompLevel_highest_tier;
1130 return task()->comp_level();
1131 }
1132
1133 // ------------------------------------------------------------------
1134 // ciEnv::compile_id
1135 uint ciEnv::compile_id() {
1136 if (task() == NULL) return 0;
1137 return task()->compile_id();
1138 }
1139
1140 // ------------------------------------------------------------------
1141 // ciEnv::notice_inlined_method()
1142 void ciEnv::notice_inlined_method(ciMethod* method) {
1143 _num_inlined_bytecodes += method->code_size_for_inlining();
1144 }
1145
1146 // ------------------------------------------------------------------
1147 // ciEnv::num_inlined_bytecodes()
1148 int ciEnv::num_inlined_bytecodes() const {
1149 return _num_inlined_bytecodes;
1150 }
1151
1152 // ------------------------------------------------------------------
1153 // ciEnv::record_failure()
1154 void ciEnv::record_failure(const char* reason) {
1155 if (_failure_reason == NULL) {
1156 // Record the first failure reason.
1157 _failure_reason = reason;
1158 }
1159 }
1160
1161 void ciEnv::report_failure(const char* reason) {
1162 EventCompilationFailure event;
1163 if (event.should_commit()) {
1164 CompilerEvent::CompilationFailureEvent::post(event, compile_id(), reason);
1165 }
1166 }
1167
1168 // ------------------------------------------------------------------
1169 // ciEnv::record_method_not_compilable()
1170 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1171 int new_compilable =
1172 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1173
1174 // Only note transitions to a worse state
1175 if (new_compilable > _compilable) {
1176 if (log() != NULL) {
1177 if (all_tiers) {
1178 log()->elem("method_not_compilable");
1179 } else {
1180 log()->elem("method_not_compilable_at_tier level='%d'",
1181 current()->task()->comp_level());
1182 }
1183 }
1184 _compilable = new_compilable;
1185
1186 // Reset failure reason; this one is more important.
1187 _failure_reason = NULL;
1188 record_failure(reason);
1189 }
1190 }
1191
1192 // ------------------------------------------------------------------
1193 // ciEnv::record_out_of_memory_failure()
1194 void ciEnv::record_out_of_memory_failure() {
1195 // If memory is low, we stop compiling methods.
1196 record_method_not_compilable("out of memory");
1197 }
1198
1199 ciInstance* ciEnv::unloaded_ciinstance() {
1200 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1201 }
1202
1203 // ------------------------------------------------------------------
1204 // ciEnv::dump_replay_data*
1205
1206 // Don't change thread state and acquire any locks.
1207 // Safe to call from VM error reporter.
1208
1209 void ciEnv::dump_compile_data(outputStream* out) {
1210 CompileTask* task = this->task();
1211 if (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)) {
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)) {
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
1237 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1238 ResourceMark rm;
1239 #if INCLUDE_JVMTI
1240 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1241 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1242 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1243 #endif // INCLUDE_JVMTI
1244
1245 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1246 out->print_cr("# %d ciObject found", objects->length());
1247 for (int i = 0; i < objects->length(); i++) {
1248 objects->at(i)->dump_replay_data(out);
1249 }
1250 dump_compile_data(out);
1251 out->flush();
1252 }
1253
1254 void ciEnv::dump_replay_data(outputStream* out) {
1255 GUARDED_VM_ENTRY(
1256 MutexLocker ml(Compile_lock);
1257 dump_replay_data_unsafe(out);
1258 )
1259 }
1260
1261 void ciEnv::dump_replay_data(int compile_id) {
1262 static char buffer[O_BUFLEN];
1263 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1264 if (ret > 0) {
1265 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1266 if (fd != -1) {
1267 FILE* replay_data_file = os::open(fd, "w");
1268 if (replay_data_file != NULL) {
1269 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1270 dump_replay_data(&replay_data_stream);
1271 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1272 } else {
1273 tty->print_cr("# Can't open file to dump replay data.");
1274 }
1275 }
1276 }
1277 }
1278
1279 void ciEnv::dump_inline_data(int compile_id) {
1280 static char buffer[O_BUFLEN];
1281 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1282 if (ret > 0) {
1283 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1284 if (fd != -1) {
1285 FILE* inline_data_file = os::open(fd, "w");
1286 if (inline_data_file != NULL) {
1287 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1288 GUARDED_VM_ENTRY(
1289 MutexLocker ml(Compile_lock);
1290 dump_compile_data(&replay_data_stream);
1291 )
1292 replay_data_stream.flush();
1293 tty->print("# Compiler inline data is saved as: ");
1294 tty->print_cr("%s", buffer);
1295 } else {
1296 tty->print_cr("# Can't open file to dump inline data.");
1297 }
1298 }
1299 }
1300 }