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/compileTask.hpp"
45 #include "compiler/disassembler.hpp"
46 #include "gc/shared/collectedHeap.inline.hpp"
47 #include "interpreter/linkResolver.hpp"
48 #include "jfr/jfrEvents.hpp"
49 #include "logging/log.hpp"
50 #include "memory/allocation.inline.hpp"
51 #include "memory/oopFactory.hpp"
52 #include "memory/resourceArea.hpp"
53 #include "memory/universe.hpp"
54 #include "oops/constantPool.inline.hpp"
55 #include "oops/cpCache.inline.hpp"
56 #include "oops/method.inline.hpp"
57 #include "oops/methodData.hpp"
58 #include "oops/objArrayKlass.hpp"
59 #include "oops/objArrayOop.inline.hpp"
60 #include "oops/oop.inline.hpp"
61 #include "prims/jvmtiExport.hpp"
62 #include "runtime/handles.inline.hpp"
63 #include "runtime/init.hpp"
64 #include "runtime/reflection.hpp"
65 #include "runtime/jniHandles.inline.hpp"
66 #include "runtime/safepointVerifiers.hpp"
67 #include "runtime/sharedRuntime.hpp"
68 #include "runtime/thread.inline.hpp"
69 #include "utilities/dtrace.hpp"
70 #include "utilities/macros.hpp"
71 #ifdef COMPILER1
72 #include "c1/c1_Runtime1.hpp"
73 #endif
74 #ifdef COMPILER2
75 #include "opto/runtime.hpp"
76 #endif
77
78 // ciEnv
79 //
80 // This class is the top level broker for requests from the compiler
81 // to the VM.
82
83 ciObject* ciEnv::_null_object_instance;
84
85 #define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL;
86 WK_KLASSES_DO(WK_KLASS_DEFN)
87 #undef WK_KLASS_DEFN
88
89 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
90 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
91 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
92
93 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
94 jobject ciEnv::_ArrayStoreException_handle = NULL;
95 jobject ciEnv::_ClassCastException_handle = NULL;
96
97 #ifndef PRODUCT
98 static bool firstEnv = true;
99 #endif /* PRODUCT */
100
101 // ------------------------------------------------------------------
102 // ciEnv::ciEnv
103 ciEnv::ciEnv(CompileTask* task)
104 : _ciEnv_arena(mtCompiler) {
105 VM_ENTRY_MARK;
106
107 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
108 thread->set_env(this);
109 assert(ciEnv::current() == this, "sanity");
110
111 _oop_recorder = NULL;
112 _debug_info = NULL;
113 _dependencies = NULL;
114 _failure_reason = NULL;
115 _inc_decompile_count_on_failure = true;
116 _compilable = MethodCompilable;
117 _break_at_compile = false;
118 _compiler_data = NULL;
119 #ifndef PRODUCT
120 assert(!firstEnv, "not initialized properly");
121 #endif /* !PRODUCT */
122
123 _num_inlined_bytecodes = 0;
124 assert(task == NULL || thread->task() == task, "sanity");
125 if (task != NULL) {
126 task->mark_started(os::elapsed_counter());
127 }
128 _task = task;
129 _log = NULL;
130
131 // Temporary buffer for creating symbols and such.
132 _name_buffer = NULL;
133 _name_buffer_len = 0;
134
135 _arena = &_ciEnv_arena;
136 _factory = new (_arena) ciObjectFactory(_arena, 128);
137
138 // Preload commonly referenced system ciObjects.
139
140 // During VM initialization, these instances have not yet been created.
141 // Assertions ensure that these instances are not accessed before
142 // their initialization.
143
144 assert(Universe::is_fully_initialized(), "should be complete");
145
146 oop o = Universe::null_ptr_exception_instance();
147 assert(o != NULL, "should have been initialized");
148 _NullPointerException_instance = get_object(o)->as_instance();
149 o = Universe::arithmetic_exception_instance();
150 assert(o != NULL, "should have been initialized");
151 _ArithmeticException_instance = get_object(o)->as_instance();
152
153 _ArrayIndexOutOfBoundsException_instance = NULL;
154 _ArrayStoreException_instance = NULL;
155 _ClassCastException_instance = NULL;
156 _the_null_string = NULL;
157 _the_min_jint_string = NULL;
158
159 _jvmti_redefinition_count = 0;
160 _jvmti_can_hotswap_or_post_breakpoint = false;
161 _jvmti_can_access_local_variables = false;
162 _jvmti_can_post_on_exceptions = false;
163 _jvmti_can_pop_frame = false;
164 }
165
166 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
167 ASSERT_IN_VM;
168
169 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
170 CompilerThread* current_thread = CompilerThread::current();
171 assert(current_thread->env() == NULL, "must be");
172 current_thread->set_env(this);
173 assert(ciEnv::current() == this, "sanity");
174
175 _oop_recorder = NULL;
176 _debug_info = NULL;
177 _dependencies = NULL;
178 _failure_reason = NULL;
179 _inc_decompile_count_on_failure = true;
180 _compilable = MethodCompilable_never;
181 _break_at_compile = false;
182 _compiler_data = NULL;
183 #ifndef PRODUCT
184 assert(firstEnv, "must be first");
185 firstEnv = false;
186 #endif /* !PRODUCT */
187
188 _num_inlined_bytecodes = 0;
189 _task = NULL;
190 _log = NULL;
191
192 // Temporary buffer for creating symbols and such.
193 _name_buffer = NULL;
194 _name_buffer_len = 0;
195
196 _arena = arena;
197 _factory = new (_arena) ciObjectFactory(_arena, 128);
198
199 // Preload commonly referenced system ciObjects.
200
201 // During VM initialization, these instances have not yet been created.
202 // Assertions ensure that these instances are not accessed before
203 // their initialization.
204
205 assert(Universe::is_fully_initialized(), "must be");
206
207 _NullPointerException_instance = NULL;
208 _ArithmeticException_instance = NULL;
209 _ArrayIndexOutOfBoundsException_instance = NULL;
210 _ArrayStoreException_instance = NULL;
211 _ClassCastException_instance = NULL;
212 _the_null_string = NULL;
213 _the_min_jint_string = NULL;
214
215 _jvmti_redefinition_count = 0;
216 _jvmti_can_hotswap_or_post_breakpoint = false;
217 _jvmti_can_access_local_variables = false;
218 _jvmti_can_post_on_exceptions = false;
219 _jvmti_can_pop_frame = false;
220 }
221
222 ciEnv::~ciEnv() {
223 GUARDED_VM_ENTRY(
224 CompilerThread* current_thread = CompilerThread::current();
225 _factory->remove_symbols();
226 // Need safepoint to clear the env on the thread. RedefineClasses might
227 // be reading it.
228 current_thread->set_env(NULL);
229 )
230 }
231
232 // ------------------------------------------------------------------
233 // Cache Jvmti state
234 bool ciEnv::cache_jvmti_state() {
235 VM_ENTRY_MARK;
236 // Get Jvmti capabilities under lock to get consistant values.
237 MutexLocker mu(JvmtiThreadState_lock);
238 _jvmti_redefinition_count = JvmtiExport::redefinition_count();
239 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
240 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
241 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
242 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
243 _jvmti_can_get_owned_monitor_info = JvmtiExport::can_get_owned_monitor_info();
244 return _task != NULL && _task->method()->is_old();
245 }
246
247 bool ciEnv::jvmti_state_changed() const {
248 // Some classes were redefined
249 if (_jvmti_redefinition_count != JvmtiExport::redefinition_count()) {
250 return true;
251 }
252
253 if (!_jvmti_can_access_local_variables &&
254 JvmtiExport::can_access_local_variables()) {
255 return true;
256 }
257 if (!_jvmti_can_hotswap_or_post_breakpoint &&
258 JvmtiExport::can_hotswap_or_post_breakpoint()) {
259 return true;
260 }
261 if (!_jvmti_can_post_on_exceptions &&
262 JvmtiExport::can_post_on_exceptions()) {
263 return true;
264 }
265 if (!_jvmti_can_pop_frame &&
266 JvmtiExport::can_pop_frame()) {
267 return true;
268 }
269 if (!_jvmti_can_get_owned_monitor_info &&
270 JvmtiExport::can_get_owned_monitor_info()) {
271 return true;
272 }
273
274 return false;
275 }
276
277 // ------------------------------------------------------------------
278 // Cache DTrace flags
279 void ciEnv::cache_dtrace_flags() {
280 // Need lock?
281 _dtrace_extended_probes = ExtendedDTraceProbes;
282 if (_dtrace_extended_probes) {
283 _dtrace_monitor_probes = true;
284 _dtrace_method_probes = true;
285 _dtrace_alloc_probes = true;
286 } else {
287 _dtrace_monitor_probes = DTraceMonitorProbes;
288 _dtrace_method_probes = DTraceMethodProbes;
289 _dtrace_alloc_probes = DTraceAllocProbes;
290 }
291 }
292
293 // ------------------------------------------------------------------
294 // helper for lazy exception creation
295 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
296 VM_ENTRY_MARK;
297 if (handle == NULL) {
298 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
299 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
300 jobject objh = NULL;
301 if (!HAS_PENDING_EXCEPTION && k != NULL) {
302 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
303 if (!HAS_PENDING_EXCEPTION)
304 objh = JNIHandles::make_global(Handle(THREAD, obj));
305 }
306 if (HAS_PENDING_EXCEPTION) {
307 CLEAR_PENDING_EXCEPTION;
308 } else {
309 handle = objh;
310 }
311 }
312 oop obj = JNIHandles::resolve(handle);
313 return obj == NULL? NULL: get_object(obj)->as_instance();
314 }
315
316 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
317 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
318 _ArrayIndexOutOfBoundsException_instance
319 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
320 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
321 }
322 return _ArrayIndexOutOfBoundsException_instance;
323 }
324 ciInstance* ciEnv::ArrayStoreException_instance() {
325 if (_ArrayStoreException_instance == NULL) {
326 _ArrayStoreException_instance
327 = get_or_create_exception(_ArrayStoreException_handle,
328 vmSymbols::java_lang_ArrayStoreException());
329 }
330 return _ArrayStoreException_instance;
331 }
332 ciInstance* ciEnv::ClassCastException_instance() {
333 if (_ClassCastException_instance == NULL) {
334 _ClassCastException_instance
335 = get_or_create_exception(_ClassCastException_handle,
336 vmSymbols::java_lang_ClassCastException());
337 }
338 return _ClassCastException_instance;
339 }
340
341 ciInstance* ciEnv::the_null_string() {
342 if (_the_null_string == NULL) {
343 VM_ENTRY_MARK;
344 _the_null_string = get_object(Universe::the_null_string())->as_instance();
345 }
346 return _the_null_string;
347 }
348
349 ciInstance* ciEnv::the_min_jint_string() {
350 if (_the_min_jint_string == NULL) {
351 VM_ENTRY_MARK;
352 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
353 }
354 return _the_min_jint_string;
355 }
356
357 // ------------------------------------------------------------------
358 // ciEnv::get_method_from_handle
359 ciMethod* ciEnv::get_method_from_handle(Method* method) {
360 VM_ENTRY_MARK;
361 return get_metadata(method)->as_method();
362 }
363
364 // ------------------------------------------------------------------
365 // ciEnv::array_element_offset_in_bytes
366 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
367 VM_ENTRY_MARK;
368 objArrayOop a = (objArrayOop)a_h->get_oop();
369 assert(a->is_objArray(), "");
370 int length = a->length();
371 oop o = o_h->get_oop();
372 for (int i = 0; i < length; i++) {
373 if (a->obj_at(i) == o) return i;
374 }
375 return -1;
376 }
377
378
379 // ------------------------------------------------------------------
380 // ciEnv::check_klass_accessiblity
381 //
382 // Note: the logic of this method should mirror the logic of
383 // ConstantPool::verify_constant_pool_resolve.
384 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
385 Klass* resolved_klass) {
386 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
387 return true;
388 }
389 if (accessing_klass->is_obj_array_klass()) {
390 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
391 }
392 if (!accessing_klass->is_instance_klass()) {
393 return true;
394 }
395
396 if (resolved_klass->is_objArray_klass()) {
397 // Find the element klass, if this is an array.
398 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
399 }
400 if (resolved_klass->is_instance_klass()) {
401 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
402 InstanceKlass::cast(resolved_klass),
403 true) == Reflection::ACCESS_OK);
404 }
405 return true;
406 }
407
408 // ------------------------------------------------------------------
409 // ciEnv::get_klass_by_name_impl
410 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
411 const constantPoolHandle& cpool,
412 ciSymbol* name,
413 bool require_local) {
414 ASSERT_IN_VM;
415 EXCEPTION_CONTEXT;
416
417 // Now we need to check the SystemDictionary
418 Symbol* sym = name->get_symbol();
419 if (Signature::has_envelope(sym)) {
420 // This is a name from a signature. Strip off the trimmings.
421 // Call recursive to keep scope of strippedsym.
422 TempNewSymbol strippedsym = Signature::strip_envelope(sym);
423 ciSymbol* strippedname = get_symbol(strippedsym);
424 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
425 }
426
427 // Check for prior unloaded klass. The SystemDictionary's answers
428 // can vary over time but the compiler needs consistency.
429 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
430 if (unloaded_klass != NULL) {
431 if (require_local) return NULL;
432 return unloaded_klass;
433 }
434
435 Handle loader(THREAD, (oop)NULL);
436 Handle domain(THREAD, (oop)NULL);
437 if (accessing_klass != NULL) {
438 loader = Handle(THREAD, accessing_klass->loader());
439 domain = Handle(THREAD, accessing_klass->protection_domain());
440 }
441
442 // setup up the proper type to return on OOM
443 ciKlass* fail_type;
444 if (sym->char_at(0) == JVM_SIGNATURE_ARRAY) {
445 fail_type = _unloaded_ciobjarrayklass;
446 } else {
447 fail_type = _unloaded_ciinstance_klass;
448 }
449 Klass* found_klass;
450 {
451 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
452 MutexLocker ml(Compile_lock);
453 Klass* kls;
454 if (!require_local) {
455 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
456 KILL_COMPILE_ON_FATAL_(fail_type));
457 } else {
458 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
459 KILL_COMPILE_ON_FATAL_(fail_type));
460 }
461 found_klass = kls;
462 }
463
464 // If we fail to find an array klass, look again for its element type.
465 // The element type may be available either locally or via constraints.
466 // In either case, if we can find the element type in the system dictionary,
467 // we must build an array type around it. The CI requires array klasses
468 // to be loaded if their element klasses are loaded, except when memory
469 // is exhausted.
470 if (Signature::is_array(sym) &&
471 (sym->char_at(1) == JVM_SIGNATURE_ARRAY || sym->char_at(1) == JVM_SIGNATURE_CLASS)) {
472 // We have an unloaded array.
473 // Build it on the fly if the element class exists.
474 SignatureStream ss(sym, false);
475 ss.skip_array_prefix(1);
476 // Get element ciKlass recursively.
477 ciKlass* elem_klass =
478 get_klass_by_name_impl(accessing_klass,
479 cpool,
480 get_symbol(ss.as_symbol()),
481 require_local);
482 if (elem_klass != NULL && elem_klass->is_loaded()) {
483 // Now make an array for it
484 return ciObjArrayKlass::make_impl(elem_klass);
485 }
486 }
487
488 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
489 // Look inside the constant pool for pre-resolved class entries.
490 for (int i = cpool->length() - 1; i >= 1; i--) {
491 if (cpool->tag_at(i).is_klass()) {
492 Klass* kls = cpool->resolved_klass_at(i);
493 if (kls->name() == sym) {
494 found_klass = kls;
495 break;
496 }
497 }
498 }
499 }
500
501 if (found_klass != NULL) {
502 // Found it. Build a CI handle.
503 return get_klass(found_klass);
504 }
505
506 if (require_local) return NULL;
507
508 // Not yet loaded into the VM, or not governed by loader constraints.
509 // Make a CI representative for it.
510 return get_unloaded_klass(accessing_klass, name);
511 }
512
513 // ------------------------------------------------------------------
514 // ciEnv::get_klass_by_name
515 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
516 ciSymbol* klass_name,
517 bool require_local) {
518 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
519 constantPoolHandle(),
520 klass_name,
521 require_local);)
522 }
523
524 // ------------------------------------------------------------------
525 // ciEnv::get_klass_by_index_impl
526 //
527 // Implementation of get_klass_by_index.
528 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
529 int index,
530 bool& is_accessible,
531 ciInstanceKlass* accessor) {
532 EXCEPTION_CONTEXT;
533 Klass* klass = NULL;
534 Symbol* klass_name = NULL;
535
536 if (cpool->tag_at(index).is_symbol()) {
537 klass_name = cpool->symbol_at(index);
538 } else {
539 // Check if it's resolved if it's not a symbol constant pool entry.
540 klass = ConstantPool::klass_at_if_loaded(cpool, index);
541 // Try to look it up by name.
542 if (klass == NULL) {
543 klass_name = cpool->klass_name_at(index);
544 }
545 }
546
547 if (klass == NULL) {
548 // Not found in constant pool. Use the name to do the lookup.
549 ciKlass* k = get_klass_by_name_impl(accessor,
550 cpool,
551 get_symbol(klass_name),
552 false);
553 // Calculate accessibility the hard way.
554 if (!k->is_loaded()) {
555 is_accessible = false;
556 } else if (k->loader() != accessor->loader() &&
557 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
558 // Loaded only remotely. Not linked yet.
559 is_accessible = false;
560 } else {
561 // Linked locally, and we must also check public/private, etc.
562 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
563 }
564 return k;
565 }
566
567 // Check for prior unloaded klass. The SystemDictionary's answers
568 // can vary over time but the compiler needs consistency.
569 ciSymbol* name = get_symbol(klass->name());
570 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
571 if (unloaded_klass != NULL) {
572 is_accessible = false;
573 return unloaded_klass;
574 }
575
576 // It is known to be accessible, since it was found in the constant pool.
577 is_accessible = true;
578 return get_klass(klass);
579 }
580
581 // ------------------------------------------------------------------
582 // ciEnv::get_klass_by_index
583 //
584 // Get a klass from the constant pool.
585 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
586 int index,
587 bool& is_accessible,
588 ciInstanceKlass* accessor) {
589 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
590 }
591
592 // ------------------------------------------------------------------
593 // ciEnv::get_constant_by_index_impl
594 //
595 // Implementation of get_constant_by_index().
596 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
597 int pool_index, int cache_index,
598 ciInstanceKlass* accessor) {
599 bool ignore_will_link;
600 EXCEPTION_CONTEXT;
601 int index = pool_index;
602 if (cache_index >= 0) {
603 assert(index < 0, "only one kind of index at a time");
604 index = cpool->object_to_cp_index(cache_index);
605 oop obj = cpool->resolved_references()->obj_at(cache_index);
606 if (obj != NULL) {
607 if (obj == Universe::the_null_sentinel()) {
608 return ciConstant(T_OBJECT, get_object(NULL));
609 }
610 BasicType bt = T_OBJECT;
611 if (cpool->tag_at(index).is_dynamic_constant())
612 bt = Signature::basic_type(cpool->uncached_signature_ref_at(index));
613 if (is_reference_type(bt)) {
614 } else {
615 // we have to unbox the primitive value
616 if (!is_java_primitive(bt)) return ciConstant();
617 jvalue value;
618 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
619 assert(bt2 == bt, "");
620 switch (bt2) {
621 case T_DOUBLE: return ciConstant(value.d);
622 case T_FLOAT: return ciConstant(value.f);
623 case T_LONG: return ciConstant(value.j);
624 case T_INT: return ciConstant(bt2, value.i);
625 case T_SHORT: return ciConstant(bt2, value.s);
626 case T_BYTE: return ciConstant(bt2, value.b);
627 case T_CHAR: return ciConstant(bt2, value.c);
628 case T_BOOLEAN: return ciConstant(bt2, value.z);
629 default: return ciConstant();
630 }
631 }
632 ciObject* ciobj = get_object(obj);
633 if (ciobj->is_array()) {
634 return ciConstant(T_ARRAY, ciobj);
635 } else {
636 assert(ciobj->is_instance(), "should be an instance");
637 return ciConstant(T_OBJECT, ciobj);
638 }
639 }
640 }
641 constantTag tag = cpool->tag_at(index);
642 if (tag.is_int()) {
643 return ciConstant(T_INT, (jint)cpool->int_at(index));
644 } else if (tag.is_long()) {
645 return ciConstant((jlong)cpool->long_at(index));
646 } else if (tag.is_float()) {
647 return ciConstant((jfloat)cpool->float_at(index));
648 } else if (tag.is_double()) {
649 return ciConstant((jdouble)cpool->double_at(index));
650 } else if (tag.is_string()) {
651 oop string = NULL;
652 assert(cache_index >= 0, "should have a cache index");
653 if (cpool->is_pseudo_string_at(index)) {
654 string = cpool->pseudo_string_at(index, cache_index);
655 } else {
656 string = cpool->string_at(index, cache_index, THREAD);
657 if (HAS_PENDING_EXCEPTION) {
658 CLEAR_PENDING_EXCEPTION;
659 record_out_of_memory_failure();
660 return ciConstant();
661 }
662 }
663 ciObject* constant = get_object(string);
664 if (constant->is_array()) {
665 return ciConstant(T_ARRAY, constant);
666 } else {
667 assert (constant->is_instance(), "must be an instance, or not? ");
668 return ciConstant(T_OBJECT, constant);
669 }
670 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
671 // 4881222: allow ldc to take a class type
672 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
673 if (HAS_PENDING_EXCEPTION) {
674 CLEAR_PENDING_EXCEPTION;
675 record_out_of_memory_failure();
676 return ciConstant();
677 }
678 assert (klass->is_instance_klass() || klass->is_array_klass(),
679 "must be an instance or array klass ");
680 return ciConstant(T_OBJECT, klass->java_mirror());
681 } else if (tag.is_method_type()) {
682 // must execute Java code to link this CP entry into cache[i].f1
683 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
684 ciObject* ciobj = get_unloaded_method_type_constant(signature);
685 return ciConstant(T_OBJECT, ciobj);
686 } else if (tag.is_method_handle()) {
687 // must execute Java code to link this CP entry into cache[i].f1
688 int ref_kind = cpool->method_handle_ref_kind_at(index);
689 int callee_index = cpool->method_handle_klass_index_at(index);
690 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
691 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
692 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
693 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
694 return ciConstant(T_OBJECT, ciobj);
695 } else if (tag.is_dynamic_constant()) {
696 return ciConstant();
697 } else {
698 ShouldNotReachHere();
699 return ciConstant();
700 }
701 }
702
703 // ------------------------------------------------------------------
704 // ciEnv::get_constant_by_index
705 //
706 // Pull a constant out of the constant pool. How appropriate.
707 //
708 // Implementation note: this query is currently in no way cached.
709 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
710 int pool_index, int cache_index,
711 ciInstanceKlass* accessor) {
712 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
713 }
714
715 // ------------------------------------------------------------------
716 // ciEnv::get_field_by_index_impl
717 //
718 // Implementation of get_field_by_index.
719 //
720 // Implementation note: the results of field lookups are cached
721 // in the accessor klass.
722 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
723 int index) {
724 ciConstantPoolCache* cache = accessor->field_cache();
725 if (cache == NULL) {
726 ciField* field = new (arena()) ciField(accessor, index);
727 return field;
728 } else {
729 ciField* field = (ciField*)cache->get(index);
730 if (field == NULL) {
731 field = new (arena()) ciField(accessor, index);
732 cache->insert(index, field);
733 }
734 return field;
735 }
736 }
737
738 // ------------------------------------------------------------------
739 // ciEnv::get_field_by_index
740 //
741 // Get a field by index from a klass's constant pool.
742 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
743 int index) {
744 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
745 }
746
747 // ------------------------------------------------------------------
748 // ciEnv::lookup_method
749 //
750 // Perform an appropriate method lookup based on accessor, holder,
751 // name, signature, and bytecode.
752 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
753 ciKlass* holder,
754 Symbol* name,
755 Symbol* sig,
756 Bytecodes::Code bc,
757 constantTag tag) {
758 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
759 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
760
761 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
762 Klass* holder_klass = holder->get_Klass();
763 Method* dest_method;
764 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::AccessCheck::needs_access_check, tag);
765 switch (bc) {
766 case Bytecodes::_invokestatic:
767 dest_method =
768 LinkResolver::resolve_static_call_or_null(link_info);
769 break;
770 case Bytecodes::_invokespecial:
771 dest_method =
772 LinkResolver::resolve_special_call_or_null(link_info);
773 break;
774 case Bytecodes::_invokeinterface:
775 dest_method =
776 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
777 break;
778 case Bytecodes::_invokevirtual:
779 dest_method =
780 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
781 break;
782 default: ShouldNotReachHere();
783 }
784
785 return dest_method;
786 }
787
788
789 // ------------------------------------------------------------------
790 // ciEnv::get_method_by_index_impl
791 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
792 int index, Bytecodes::Code bc,
793 ciInstanceKlass* accessor) {
794 assert(cpool.not_null(), "need constant pool");
795 assert(accessor != NULL, "need origin of access");
796 if (bc == Bytecodes::_invokedynamic) {
797 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
798 bool is_resolved = !cpce->is_f1_null();
799 // FIXME: code generation could allow for null (unlinked) call site
800 // The call site could be made patchable as follows:
801 // Load the appendix argument from the constant pool.
802 // Test the appendix argument and jump to a known deopt routine if it is null.
803 // Jump through a patchable call site, which is initially a deopt routine.
804 // Patch the call site to the nmethod entry point of the static compiled lambda form.
805 // As with other two-component call sites, both values must be independently verified.
806
807 if (is_resolved) {
808 // Get the invoker Method* from the constant pool.
809 // (The appendix argument, if any, will be noted in the method's signature.)
810 Method* adapter = cpce->f1_as_method();
811 return get_method(adapter);
812 }
813
814 // Fake a method that is equivalent to a declared method.
815 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
816 ciSymbol* name = ciSymbol::invokeBasic_name();
817 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
818 return get_unloaded_method(holder, name, signature, accessor);
819 } else {
820 const int holder_index = cpool->klass_ref_index_at(index);
821 bool holder_is_accessible;
822 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
823
824 // Get the method's name and signature.
825 Symbol* name_sym = cpool->name_ref_at(index);
826 Symbol* sig_sym = cpool->signature_ref_at(index);
827
828 if (cpool->has_preresolution()
829 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
830 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
831 // Short-circuit lookups for JSR 292-related call sites.
832 // That is, do not rely only on name-based lookups, because they may fail
833 // if the names are not resolvable in the boot class loader (7056328).
834 switch (bc) {
835 case Bytecodes::_invokevirtual:
836 case Bytecodes::_invokeinterface:
837 case Bytecodes::_invokespecial:
838 case Bytecodes::_invokestatic:
839 {
840 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
841 if (m != NULL) {
842 return get_method(m);
843 }
844 }
845 break;
846 default:
847 break;
848 }
849 }
850
851 if (holder_is_accessible) { // Our declared holder is loaded.
852 constantTag tag = cpool->tag_ref_at(index);
853 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
854 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
855 if (m != NULL &&
856 (bc == Bytecodes::_invokestatic
857 ? m->method_holder()->is_not_initialized()
858 : !m->method_holder()->is_loaded())) {
859 m = NULL;
860 }
861 #ifdef ASSERT
862 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
863 m = NULL;
864 }
865 #endif
866 if (m != NULL) {
867 // We found the method.
868 return get_method(m);
869 }
870 }
871
872 // Either the declared holder was not loaded, or the method could
873 // not be found. Create a dummy ciMethod to represent the failed
874 // lookup.
875 ciSymbol* name = get_symbol(name_sym);
876 ciSymbol* signature = get_symbol(sig_sym);
877 return get_unloaded_method(holder, name, signature, accessor);
878 }
879 }
880
881
882 // ------------------------------------------------------------------
883 // ciEnv::get_instance_klass_for_declared_method_holder
884 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
885 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
886 // instead of a ciInstanceKlass. For that case simply pretend that the
887 // declared holder is Object.clone since that's where the call will bottom out.
888 // A more correct fix would trickle out through many interfaces in CI,
889 // requiring ciInstanceKlass* to become ciKlass* and many more places would
890 // require checks to make sure the expected type was found. Given that this
891 // only occurs for clone() the more extensive fix seems like overkill so
892 // instead we simply smear the array type into Object.
893 guarantee(method_holder != NULL, "no method holder");
894 if (method_holder->is_instance_klass()) {
895 return method_holder->as_instance_klass();
896 } else if (method_holder->is_array_klass()) {
897 return current()->Object_klass();
898 } else {
899 ShouldNotReachHere();
900 }
901 return NULL;
902 }
903
904
905 // ------------------------------------------------------------------
906 // ciEnv::get_method_by_index
907 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
908 int index, Bytecodes::Code bc,
909 ciInstanceKlass* accessor) {
910 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
911 }
912
913
914 // ------------------------------------------------------------------
915 // ciEnv::name_buffer
916 char *ciEnv::name_buffer(int req_len) {
917 if (_name_buffer_len < req_len) {
918 if (_name_buffer == NULL) {
919 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
920 _name_buffer_len = req_len;
921 } else {
922 _name_buffer =
923 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
924 _name_buffer_len = req_len;
925 }
926 }
927 return _name_buffer;
928 }
929
930 // ------------------------------------------------------------------
931 // ciEnv::is_in_vm
932 bool ciEnv::is_in_vm() {
933 return JavaThread::current()->thread_state() == _thread_in_vm;
934 }
935
936 // ------------------------------------------------------------------
937 // ciEnv::validate_compile_task_dependencies
938 //
939 // Check for changes during compilation (e.g. class loads, evolution,
940 // breakpoints, call site invalidation).
941 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
942 if (failing()) return; // no need for further checks
943
944 Dependencies::DepType result = dependencies()->validate_dependencies(_task);
945 if (result != Dependencies::end_marker) {
946 if (result == Dependencies::call_site_target_value) {
947 _inc_decompile_count_on_failure = false;
948 record_failure("call site target change");
949 } else if (Dependencies::is_klass_type(result)) {
950 record_failure("concurrent class loading");
951 } else {
952 record_failure("invalid non-klass dependency");
953 }
954 }
955 }
956
957 // ------------------------------------------------------------------
958 // ciEnv::register_method
959 void ciEnv::register_method(ciMethod* target,
960 int entry_bci,
961 CodeOffsets* offsets,
962 int orig_pc_offset,
963 CodeBuffer* code_buffer,
964 int frame_words,
965 OopMapSet* oop_map_set,
966 ExceptionHandlerTable* handler_table,
967 ImplicitExceptionTable* inc_table,
968 AbstractCompiler* compiler,
969 bool has_unsafe_access,
970 bool has_wide_vectors,
971 RTMState rtm_state) {
972 VM_ENTRY_MARK;
973 nmethod* nm = NULL;
974 {
975 // To prevent compile queue updates.
976 MutexLocker locker(THREAD, MethodCompileQueue_lock);
977
978 // Prevent SystemDictionary::add_to_hierarchy from running
979 // and invalidating our dependencies until we install this method.
980 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
981 MutexLocker ml(Compile_lock);
982 NoSafepointVerifier nsv;
983
984 // Change in Jvmti state may invalidate compilation.
985 if (!failing() && jvmti_state_changed()) {
986 record_failure("Jvmti state change invalidated dependencies");
987 }
988
989 // Change in DTrace flags may invalidate compilation.
990 if (!failing() &&
991 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
992 (!dtrace_method_probes() && DTraceMethodProbes) ||
993 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
994 record_failure("DTrace flags change invalidated dependencies");
995 }
996
997 if (!failing() && target->needs_clinit_barrier() &&
998 target->holder()->is_in_error_state()) {
999 record_failure("method holder is in error state");
1000 }
1001
1002 if (!failing()) {
1003 if (log() != NULL) {
1004 // Log the dependencies which this compilation declares.
1005 dependencies()->log_all_dependencies();
1006 }
1007
1008 // Encode the dependencies now, so we can check them right away.
1009 dependencies()->encode_content_bytes();
1010
1011 // Check for {class loads, evolution, breakpoints, ...} during compilation
1012 validate_compile_task_dependencies(target);
1013 }
1014
1015 methodHandle method(THREAD, target->get_Method());
1016
1017 #if INCLUDE_RTM_OPT
1018 if (!failing() && (rtm_state != NoRTM) &&
1019 (method()->method_data() != NULL) &&
1020 (method()->method_data()->rtm_state() != rtm_state)) {
1021 // Preemptive decompile if rtm state was changed.
1022 record_failure("RTM state change invalidated rtm code");
1023 }
1024 #endif
1025
1026 if (failing()) {
1027 // While not a true deoptimization, it is a preemptive decompile.
1028 MethodData* mdo = method()->method_data();
1029 if (mdo != NULL && _inc_decompile_count_on_failure) {
1030 mdo->inc_decompile_count();
1031 }
1032
1033 // All buffers in the CodeBuffer are allocated in the CodeCache.
1034 // If the code buffer is created on each compile attempt
1035 // as in C2, then it must be freed.
1036 code_buffer->free_blob();
1037 return;
1038 }
1039
1040 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1041 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1042
1043 nm = nmethod::new_nmethod(method,
1044 compile_id(),
1045 entry_bci,
1046 offsets,
1047 orig_pc_offset,
1048 debug_info(), dependencies(), code_buffer,
1049 frame_words, oop_map_set,
1050 handler_table, inc_table,
1051 compiler, task()->comp_level());
1052
1053 // Free codeBlobs
1054 code_buffer->free_blob();
1055
1056 if (nm != NULL) {
1057 nm->set_has_unsafe_access(has_unsafe_access);
1058 nm->set_has_wide_vectors(has_wide_vectors);
1059 #if INCLUDE_RTM_OPT
1060 nm->set_rtm_state(rtm_state);
1061 #endif
1062
1063 // Record successful registration.
1064 // (Put nm into the task handle *before* publishing to the Java heap.)
1065 if (task() != NULL) {
1066 task()->set_code(nm);
1067 }
1068
1069 if (entry_bci == InvocationEntryBci) {
1070 if (TieredCompilation) {
1071 // If there is an old version we're done with it
1072 CompiledMethod* old = method->code();
1073 if (TraceMethodReplacement && old != NULL) {
1074 ResourceMark rm;
1075 char *method_name = method->name_and_sig_as_C_string();
1076 tty->print_cr("Replacing method %s", method_name);
1077 }
1078 if (old != NULL) {
1079 old->make_not_used();
1080 }
1081 }
1082
1083 LogTarget(Info, nmethod, install) lt;
1084 if (lt.is_enabled()) {
1085 ResourceMark rm;
1086 char *method_name = method->name_and_sig_as_C_string();
1087 lt.print("Installing method (%d) %s ",
1088 task()->comp_level(), method_name);
1089 }
1090 // Allow the code to be executed
1091 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
1092 if (nm->make_in_use()) {
1093 method->set_code(method, nm);
1094 }
1095 } else {
1096 LogTarget(Info, nmethod, install) lt;
1097 if (lt.is_enabled()) {
1098 ResourceMark rm;
1099 char *method_name = method->name_and_sig_as_C_string();
1100 lt.print("Installing osr method (%d) %s @ %d",
1101 task()->comp_level(), method_name, entry_bci);
1102 }
1103 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
1104 if (nm->make_in_use()) {
1105 method->method_holder()->add_osr_nmethod(nm);
1106 }
1107 }
1108 }
1109 } // safepoints are allowed again
1110
1111 if (nm != NULL) {
1112 // JVMTI -- compiled method notification (must be done outside lock)
1113 nm->post_compiled_method_load_event();
1114 } else {
1115 // The CodeCache is full.
1116 record_failure("code cache is full");
1117 }
1118 }
1119
1120
1121 // ------------------------------------------------------------------
1122 // ciEnv::find_system_klass
1123 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1124 VM_ENTRY_MARK;
1125 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1126 }
1127
1128 // ------------------------------------------------------------------
1129 // ciEnv::comp_level
1130 int ciEnv::comp_level() {
1131 if (task() == NULL) return CompLevel_highest_tier;
1132 return task()->comp_level();
1133 }
1134
1135 // ------------------------------------------------------------------
1136 // ciEnv::compile_id
1137 uint ciEnv::compile_id() {
1138 if (task() == NULL) return 0;
1139 return task()->compile_id();
1140 }
1141
1142 // ------------------------------------------------------------------
1143 // ciEnv::notice_inlined_method()
1144 void ciEnv::notice_inlined_method(ciMethod* method) {
1145 _num_inlined_bytecodes += method->code_size_for_inlining();
1146 }
1147
1148 // ------------------------------------------------------------------
1149 // ciEnv::num_inlined_bytecodes()
1150 int ciEnv::num_inlined_bytecodes() const {
1151 return _num_inlined_bytecodes;
1152 }
1153
1154 // ------------------------------------------------------------------
1155 // ciEnv::record_failure()
1156 void ciEnv::record_failure(const char* reason) {
1157 if (_failure_reason == NULL) {
1158 // Record the first failure reason.
1159 _failure_reason = reason;
1160 }
1161 }
1162
1163 void ciEnv::report_failure(const char* reason) {
1164 EventCompilationFailure event;
1165 if (event.should_commit()) {
1166 CompilerEvent::CompilationFailureEvent::post(event, compile_id(), reason);
1167 }
1168 }
1169
1170 // ------------------------------------------------------------------
1171 // ciEnv::record_method_not_compilable()
1172 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1173 int new_compilable =
1174 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1175
1176 // Only note transitions to a worse state
1177 if (new_compilable > _compilable) {
1178 if (log() != NULL) {
1179 if (all_tiers) {
1180 log()->elem("method_not_compilable");
1181 } else {
1182 log()->elem("method_not_compilable_at_tier level='%d'",
1183 current()->task()->comp_level());
1184 }
1185 }
1186 _compilable = new_compilable;
1187
1188 // Reset failure reason; this one is more important.
1189 _failure_reason = NULL;
1190 record_failure(reason);
1191 }
1192 }
1193
1194 // ------------------------------------------------------------------
1195 // ciEnv::record_out_of_memory_failure()
1196 void ciEnv::record_out_of_memory_failure() {
1197 // If memory is low, we stop compiling methods.
1198 record_method_not_compilable("out of memory");
1199 }
1200
1201 ciInstance* ciEnv::unloaded_ciinstance() {
1202 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1203 }
1204
1205 // ------------------------------------------------------------------
1206 // ciEnv::dump_replay_data*
1207
1208 // Don't change thread state and acquire any locks.
1209 // Safe to call from VM error reporter.
1210
1211 void ciEnv::dump_compile_data(outputStream* out) {
1212 CompileTask* task = this->task();
1213 if (task) {
1214 Method* method = task->method();
1215 int entry_bci = task->osr_bci();
1216 int comp_level = task->comp_level();
1217 out->print("compile %s %s %s %d %d",
1218 method->klass_name()->as_quoted_ascii(),
1219 method->name()->as_quoted_ascii(),
1220 method->signature()->as_quoted_ascii(),
1221 entry_bci, comp_level);
1222 if (compiler_data() != NULL) {
1223 if (is_c2_compile(comp_level)) {
1224 #ifdef COMPILER2
1225 // Dump C2 inlining data.
1226 ((Compile*)compiler_data())->dump_inline_data(out);
1227 #endif
1228 } else if (is_c1_compile(comp_level)) {
1229 #ifdef COMPILER1
1230 // Dump C1 inlining data.
1231 ((Compilation*)compiler_data())->dump_inline_data(out);
1232 #endif
1233 }
1234 }
1235 out->cr();
1236 }
1237 }
1238
1239 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1240 ResourceMark rm;
1241 #if INCLUDE_JVMTI
1242 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1243 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1244 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1245 #endif // INCLUDE_JVMTI
1246
1247 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1248 out->print_cr("# %d ciObject found", objects->length());
1249 for (int i = 0; i < objects->length(); i++) {
1250 objects->at(i)->dump_replay_data(out);
1251 }
1252 dump_compile_data(out);
1253 out->flush();
1254 }
1255
1256 void ciEnv::dump_replay_data(outputStream* out) {
1257 GUARDED_VM_ENTRY(
1258 MutexLocker ml(Compile_lock);
1259 dump_replay_data_unsafe(out);
1260 )
1261 }
1262
1263 void ciEnv::dump_replay_data(int compile_id) {
1264 static char buffer[O_BUFLEN];
1265 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1266 if (ret > 0) {
1267 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1268 if (fd != -1) {
1269 FILE* replay_data_file = os::open(fd, "w");
1270 if (replay_data_file != NULL) {
1271 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1272 dump_replay_data(&replay_data_stream);
1273 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1274 } else {
1275 tty->print_cr("# Can't open file to dump replay data.");
1276 }
1277 }
1278 }
1279 }
1280
1281 void ciEnv::dump_inline_data(int compile_id) {
1282 static char buffer[O_BUFLEN];
1283 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1284 if (ret > 0) {
1285 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1286 if (fd != -1) {
1287 FILE* inline_data_file = os::open(fd, "w");
1288 if (inline_data_file != NULL) {
1289 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1290 GUARDED_VM_ENTRY(
1291 MutexLocker ml(Compile_lock);
1292 dump_compile_data(&replay_data_stream);
1293 )
1294 replay_data_stream.flush();
1295 tty->print("# Compiler inline data is saved as: ");
1296 tty->print_cr("%s", buffer);
1297 } else {
1298 tty->print_cr("# Can't open file to dump inline data.");
1299 }
1300 }
1301 }
1302 }