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