1 /*
2 * Copyright (c) 1999, 2018, 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/systemDictionary.hpp"
37 #include "classfile/vmSymbols.hpp"
38 #include "code/codeCache.hpp"
39 #include "code/scopeDesc.hpp"
40 #include "compiler/compileBroker.hpp"
41 #include "compiler/compileLog.hpp"
42 #include "compiler/disassembler.hpp"
43 #include "gc/shared/collectedHeap.inline.hpp"
44 #include "interpreter/linkResolver.hpp"
45 #include "memory/allocation.inline.hpp"
46 #include "memory/oopFactory.hpp"
47 #include "memory/resourceArea.hpp"
48 #include "memory/universe.hpp"
49 #include "oops/constantPool.inline.hpp"
50 #include "oops/cpCache.inline.hpp"
51 #include "oops/method.inline.hpp"
52 #include "oops/methodData.hpp"
53 #include "oops/objArrayKlass.hpp"
54 #include "oops/objArrayOop.inline.hpp"
55 #include "oops/oop.inline.hpp"
56 #include "prims/jvmtiExport.hpp"
57 #include "runtime/init.hpp"
58 #include "runtime/reflection.hpp"
59 #include "runtime/jniHandles.inline.hpp"
60 #include "runtime/sharedRuntime.hpp"
61 #include "runtime/thread.inline.hpp"
62 #include "trace/tracing.hpp"
63 #include "utilities/dtrace.hpp"
64 #include "utilities/macros.hpp"
65 #ifdef COMPILER1
66 #include "c1/c1_Runtime1.hpp"
67 #endif
68 #ifdef COMPILER2
69 #include "opto/runtime.hpp"
70 #endif
71
72 // ciEnv
73 //
74 // This class is the top level broker for requests from the compiler
75 // to the VM.
76
77 ciObject* ciEnv::_null_object_instance;
78
79 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL;
80 WK_KLASSES_DO(WK_KLASS_DEFN)
81 #undef WK_KLASS_DEFN
82
83 ciSymbol* ciEnv::_unloaded_cisymbol = NULL;
84 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL;
85 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL;
86
87 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL;
88 jobject ciEnv::_ArrayStoreException_handle = NULL;
89 jobject ciEnv::_ClassCastException_handle = NULL;
90
91 #ifndef PRODUCT
92 static bool firstEnv = true;
93 #endif /* PRODUCT */
94
95 // ------------------------------------------------------------------
96 // ciEnv::ciEnv
97 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
98 : _ciEnv_arena(mtCompiler) {
99 VM_ENTRY_MARK;
100
101 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
102 thread->set_env(this);
103 assert(ciEnv::current() == this, "sanity");
104
105 _oop_recorder = NULL;
106 _debug_info = NULL;
107 _dependencies = NULL;
108 _failure_reason = NULL;
109 _inc_decompile_count_on_failure = true;
110 _compilable = MethodCompilable;
111 _break_at_compile = false;
112 _compiler_data = NULL;
113 #ifndef PRODUCT
114 assert(!firstEnv, "not initialized properly");
115 #endif /* !PRODUCT */
116
117 _system_dictionary_modification_counter = system_dictionary_modification_counter;
118 _num_inlined_bytecodes = 0;
119 assert(task == NULL || thread->task() == task, "sanity");
120 _task = task;
121 _log = NULL;
122
123 // Temporary buffer for creating symbols and such.
124 _name_buffer = NULL;
125 _name_buffer_len = 0;
126
127 _arena = &_ciEnv_arena;
128 _factory = new (_arena) ciObjectFactory(_arena, 128);
129
130 // Preload commonly referenced system ciObjects.
131
132 // During VM initialization, these instances have not yet been created.
133 // Assertions ensure that these instances are not accessed before
134 // their initialization.
135
136 assert(Universe::is_fully_initialized(), "should be complete");
137
138 oop o = Universe::null_ptr_exception_instance();
139 assert(o != NULL, "should have been initialized");
140 _NullPointerException_instance = get_object(o)->as_instance();
141 o = Universe::arithmetic_exception_instance();
142 assert(o != NULL, "should have been initialized");
143 _ArithmeticException_instance = get_object(o)->as_instance();
144
145 _ArrayIndexOutOfBoundsException_instance = NULL;
146 _ArrayStoreException_instance = NULL;
147 _ClassCastException_instance = NULL;
148 _the_null_string = NULL;
149 _the_min_jint_string = NULL;
150
151 _jvmti_can_hotswap_or_post_breakpoint = false;
152 _jvmti_can_access_local_variables = false;
153 _jvmti_can_post_on_exceptions = false;
154 _jvmti_can_pop_frame = false;
155 }
156
157 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
158 ASSERT_IN_VM;
159
160 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
161 CompilerThread* current_thread = CompilerThread::current();
162 assert(current_thread->env() == NULL, "must be");
163 current_thread->set_env(this);
164 assert(ciEnv::current() == this, "sanity");
165
166 _oop_recorder = NULL;
167 _debug_info = NULL;
168 _dependencies = NULL;
169 _failure_reason = NULL;
170 _inc_decompile_count_on_failure = true;
171 _compilable = MethodCompilable_never;
172 _break_at_compile = false;
173 _compiler_data = NULL;
174 #ifndef PRODUCT
175 assert(firstEnv, "must be first");
176 firstEnv = false;
177 #endif /* !PRODUCT */
178
179 _system_dictionary_modification_counter = 0;
180 _num_inlined_bytecodes = 0;
181 _task = NULL;
182 _log = NULL;
183
184 // Temporary buffer for creating symbols and such.
185 _name_buffer = NULL;
186 _name_buffer_len = 0;
187
188 _arena = arena;
189 _factory = new (_arena) ciObjectFactory(_arena, 128);
190
191 // Preload commonly referenced system ciObjects.
192
193 // During VM initialization, these instances have not yet been created.
194 // Assertions ensure that these instances are not accessed before
195 // their initialization.
196
197 assert(Universe::is_fully_initialized(), "must be");
198
199 _NullPointerException_instance = NULL;
200 _ArithmeticException_instance = NULL;
201 _ArrayIndexOutOfBoundsException_instance = NULL;
202 _ArrayStoreException_instance = NULL;
203 _ClassCastException_instance = NULL;
204 _the_null_string = NULL;
205 _the_min_jint_string = NULL;
206
207 _jvmti_can_hotswap_or_post_breakpoint = false;
208 _jvmti_can_access_local_variables = false;
209 _jvmti_can_post_on_exceptions = false;
210 _jvmti_can_pop_frame = false;
211 }
212
213 ciEnv::~ciEnv() {
214 GUARDED_VM_ENTRY(
215 CompilerThread* current_thread = CompilerThread::current();
216 _factory->remove_symbols();
217 // Need safepoint to clear the env on the thread. RedefineClasses might
218 // be reading it.
219 current_thread->set_env(NULL);
220 )
221 }
222
223 // ------------------------------------------------------------------
224 // Cache Jvmti state
225 void ciEnv::cache_jvmti_state() {
226 VM_ENTRY_MARK;
227 // Get Jvmti capabilities under lock to get consistant values.
228 MutexLocker mu(JvmtiThreadState_lock);
229 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
230 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
231 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
232 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
233 }
234
235 bool ciEnv::should_retain_local_variables() const {
236 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame;
237 }
238
239 bool ciEnv::jvmti_state_changed() const {
240 if (!_jvmti_can_access_local_variables &&
241 JvmtiExport::can_access_local_variables()) {
242 return true;
243 }
244 if (!_jvmti_can_hotswap_or_post_breakpoint &&
245 JvmtiExport::can_hotswap_or_post_breakpoint()) {
246 return true;
247 }
248 if (!_jvmti_can_post_on_exceptions &&
249 JvmtiExport::can_post_on_exceptions()) {
250 return true;
251 }
252 if (!_jvmti_can_pop_frame &&
253 JvmtiExport::can_pop_frame()) {
254 return true;
255 }
256 return false;
257 }
258
259 // ------------------------------------------------------------------
260 // Cache DTrace flags
261 void ciEnv::cache_dtrace_flags() {
262 // Need lock?
263 _dtrace_extended_probes = ExtendedDTraceProbes;
264 if (_dtrace_extended_probes) {
265 _dtrace_monitor_probes = true;
266 _dtrace_method_probes = true;
267 _dtrace_alloc_probes = true;
268 } else {
269 _dtrace_monitor_probes = DTraceMonitorProbes;
270 _dtrace_method_probes = DTraceMethodProbes;
271 _dtrace_alloc_probes = DTraceAllocProbes;
272 }
273 }
274
275 // ------------------------------------------------------------------
276 // helper for lazy exception creation
277 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
278 VM_ENTRY_MARK;
279 if (handle == NULL) {
280 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
281 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD);
282 jobject objh = NULL;
283 if (!HAS_PENDING_EXCEPTION && k != NULL) {
284 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD);
285 if (!HAS_PENDING_EXCEPTION)
286 objh = JNIHandles::make_global(Handle(THREAD, obj));
287 }
288 if (HAS_PENDING_EXCEPTION) {
289 CLEAR_PENDING_EXCEPTION;
290 } else {
291 handle = objh;
292 }
293 }
294 oop obj = JNIHandles::resolve(handle);
295 return obj == NULL? NULL: get_object(obj)->as_instance();
296 }
297
298 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
299 if (_ArrayIndexOutOfBoundsException_instance == NULL) {
300 _ArrayIndexOutOfBoundsException_instance
301 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
302 vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
303 }
304 return _ArrayIndexOutOfBoundsException_instance;
305 }
306 ciInstance* ciEnv::ArrayStoreException_instance() {
307 if (_ArrayStoreException_instance == NULL) {
308 _ArrayStoreException_instance
309 = get_or_create_exception(_ArrayStoreException_handle,
310 vmSymbols::java_lang_ArrayStoreException());
311 }
312 return _ArrayStoreException_instance;
313 }
314 ciInstance* ciEnv::ClassCastException_instance() {
315 if (_ClassCastException_instance == NULL) {
316 _ClassCastException_instance
317 = get_or_create_exception(_ClassCastException_handle,
318 vmSymbols::java_lang_ClassCastException());
319 }
320 return _ClassCastException_instance;
321 }
322
323 ciInstance* ciEnv::the_null_string() {
324 if (_the_null_string == NULL) {
325 VM_ENTRY_MARK;
326 _the_null_string = get_object(Universe::the_null_string())->as_instance();
327 }
328 return _the_null_string;
329 }
330
331 ciInstance* ciEnv::the_min_jint_string() {
332 if (_the_min_jint_string == NULL) {
333 VM_ENTRY_MARK;
334 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
335 }
336 return _the_min_jint_string;
337 }
338
339 // ------------------------------------------------------------------
340 // ciEnv::get_method_from_handle
341 ciMethod* ciEnv::get_method_from_handle(Method* method) {
342 VM_ENTRY_MARK;
343 return get_metadata(method)->as_method();
344 }
345
346 // ------------------------------------------------------------------
347 // ciEnv::array_element_offset_in_bytes
348 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) {
349 VM_ENTRY_MARK;
350 objArrayOop a = (objArrayOop)a_h->get_oop();
351 assert(a->is_objArray(), "");
352 int length = a->length();
353 oop o = o_h->get_oop();
354 for (int i = 0; i < length; i++) {
355 if (a->obj_at(i) == o) return i;
356 }
357 return -1;
358 }
359
360
361 // ------------------------------------------------------------------
362 // ciEnv::check_klass_accessiblity
363 //
364 // Note: the logic of this method should mirror the logic of
365 // ConstantPool::verify_constant_pool_resolve.
366 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
367 Klass* resolved_klass) {
368 if (accessing_klass == NULL || !accessing_klass->is_loaded()) {
369 return true;
370 }
371 if (accessing_klass->is_obj_array_klass()) {
372 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
373 }
374 if (!accessing_klass->is_instance_klass()) {
375 return true;
376 }
377
378 if (resolved_klass->is_objArray_klass()) {
379 // Find the element klass, if this is an array.
380 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
381 }
382 if (resolved_klass->is_instance_klass()) {
383 return (Reflection::verify_class_access(accessing_klass->get_Klass(),
384 InstanceKlass::cast(resolved_klass),
385 true) == Reflection::ACCESS_OK);
386 }
387 return true;
388 }
389
390 // ------------------------------------------------------------------
391 // ciEnv::get_klass_by_name_impl
392 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
393 const constantPoolHandle& cpool,
394 ciSymbol* name,
395 bool require_local) {
396 ASSERT_IN_VM;
397 EXCEPTION_CONTEXT;
398
399 // Now we need to check the SystemDictionary
400 Symbol* sym = name->get_symbol();
401 if (sym->byte_at(0) == 'L' &&
402 sym->byte_at(sym->utf8_length()-1) == ';') {
403 // This is a name from a signature. Strip off the trimmings.
404 // Call recursive to keep scope of strippedsym.
405 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1,
406 sym->utf8_length()-2,
407 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass));
408 ciSymbol* strippedname = get_symbol(strippedsym);
409 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
410 }
411
412 // Check for prior unloaded klass. The SystemDictionary's answers
413 // can vary over time but the compiler needs consistency.
414 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
415 if (unloaded_klass != NULL) {
416 if (require_local) return NULL;
417 return unloaded_klass;
418 }
419
420 Handle loader(THREAD, (oop)NULL);
421 Handle domain(THREAD, (oop)NULL);
422 if (accessing_klass != NULL) {
423 loader = Handle(THREAD, accessing_klass->loader());
424 domain = Handle(THREAD, accessing_klass->protection_domain());
425 }
426
427 // setup up the proper type to return on OOM
428 ciKlass* fail_type;
429 if (sym->byte_at(0) == '[') {
430 fail_type = _unloaded_ciobjarrayklass;
431 } else {
432 fail_type = _unloaded_ciinstance_klass;
433 }
434 Klass* found_klass;
435 {
436 ttyUnlocker ttyul; // release tty lock to avoid ordering problems
437 MutexLocker ml(Compile_lock);
438 Klass* kls;
439 if (!require_local) {
440 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader,
441 KILL_COMPILE_ON_FATAL_(fail_type));
442 } else {
443 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain,
444 KILL_COMPILE_ON_FATAL_(fail_type));
445 }
446 found_klass = kls;
447 }
448
449 // If we fail to find an array klass, look again for its element type.
450 // The element type may be available either locally or via constraints.
451 // In either case, if we can find the element type in the system dictionary,
452 // we must build an array type around it. The CI requires array klasses
453 // to be loaded if their element klasses are loaded, except when memory
454 // is exhausted.
455 if (sym->byte_at(0) == '[' &&
456 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) {
457 // We have an unloaded array.
458 // Build it on the fly if the element class exists.
459 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1,
460 sym->utf8_length()-1,
461 KILL_COMPILE_ON_FATAL_(fail_type));
462
463 // Get element ciKlass recursively.
464 ciKlass* elem_klass =
465 get_klass_by_name_impl(accessing_klass,
466 cpool,
467 get_symbol(elem_sym),
468 require_local);
469 if (elem_klass != NULL && elem_klass->is_loaded()) {
470 // Now make an array for it
471 return ciObjArrayKlass::make_impl(elem_klass);
472 }
473 }
474
475 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) {
476 // Look inside the constant pool for pre-resolved class entries.
477 for (int i = cpool->length() - 1; i >= 1; i--) {
478 if (cpool->tag_at(i).is_klass()) {
479 Klass* kls = cpool->resolved_klass_at(i);
480 if (kls->name() == sym) {
481 found_klass = kls;
482 break;
483 }
484 }
485 }
486 }
487
488 if (found_klass != NULL) {
489 // Found it. Build a CI handle.
490 return get_klass(found_klass);
491 }
492
493 if (require_local) return NULL;
494
495 // Not yet loaded into the VM, or not governed by loader constraints.
496 // Make a CI representative for it.
497 return get_unloaded_klass(accessing_klass, name);
498 }
499
500 // ------------------------------------------------------------------
501 // ciEnv::get_klass_by_name
502 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
503 ciSymbol* klass_name,
504 bool require_local) {
505 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
506 constantPoolHandle(),
507 klass_name,
508 require_local);)
509 }
510
511 // ------------------------------------------------------------------
512 // ciEnv::get_klass_by_index_impl
513 //
514 // Implementation of get_klass_by_index.
515 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
516 int index,
517 bool& is_accessible,
518 ciInstanceKlass* accessor) {
519 EXCEPTION_CONTEXT;
520 Klass* klass = NULL;
521 Symbol* klass_name = NULL;
522
523 if (cpool->tag_at(index).is_symbol()) {
524 klass_name = cpool->symbol_at(index);
525 } else {
526 // Check if it's resolved if it's not a symbol constant pool entry.
527 klass = ConstantPool::klass_at_if_loaded(cpool, index);
528 // Try to look it up by name.
529 if (klass == NULL) {
530 klass_name = cpool->klass_name_at(index);
531 }
532 }
533
534 if (klass == NULL) {
535 // Not found in constant pool. Use the name to do the lookup.
536 ciKlass* k = get_klass_by_name_impl(accessor,
537 cpool,
538 get_symbol(klass_name),
539 false);
540 // Calculate accessibility the hard way.
541 if (!k->is_loaded()) {
542 is_accessible = false;
543 } else if (k->loader() != accessor->loader() &&
544 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) {
545 // Loaded only remotely. Not linked yet.
546 is_accessible = false;
547 } else {
548 // Linked locally, and we must also check public/private, etc.
549 is_accessible = check_klass_accessibility(accessor, k->get_Klass());
550 }
551 return k;
552 }
553
554 // Check for prior unloaded klass. The SystemDictionary's answers
555 // can vary over time but the compiler needs consistency.
556 ciSymbol* name = get_symbol(klass->name());
557 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
558 if (unloaded_klass != NULL) {
559 is_accessible = false;
560 return unloaded_klass;
561 }
562
563 // It is known to be accessible, since it was found in the constant pool.
564 is_accessible = true;
565 return get_klass(klass);
566 }
567
568 // ------------------------------------------------------------------
569 // ciEnv::get_klass_by_index
570 //
571 // Get a klass from the constant pool.
572 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
573 int index,
574 bool& is_accessible,
575 ciInstanceKlass* accessor) {
576 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
577 }
578
579 // ------------------------------------------------------------------
580 // ciEnv::get_constant_by_index_impl
581 //
582 // Implementation of get_constant_by_index().
583 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
584 int pool_index, int cache_index,
585 ciInstanceKlass* accessor) {
586 bool ignore_will_link;
587 EXCEPTION_CONTEXT;
588 int index = pool_index;
589 if (cache_index >= 0) {
590 assert(index < 0, "only one kind of index at a time");
591 index = cpool->object_to_cp_index(cache_index);
592 oop obj = cpool->resolved_references()->obj_at(cache_index);
593 if (obj != NULL) {
594 if (obj == Universe::the_null_sentinel()) {
595 return ciConstant(T_OBJECT, get_object(NULL));
596 }
597 BasicType bt = T_OBJECT;
598 if (cpool->tag_at(index).is_dynamic_constant())
599 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index));
600 if (is_reference_type(bt)) {
601 } else {
602 // we have to unbox the primitive value
603 if (!is_java_primitive(bt)) return ciConstant();
604 jvalue value;
605 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value);
606 assert(bt2 == bt, "");
607 switch (bt2) {
608 case T_DOUBLE: return ciConstant(value.d);
609 case T_FLOAT: return ciConstant(value.f);
610 case T_LONG: return ciConstant(value.j);
611 case T_INT: return ciConstant(bt2, value.i);
612 case T_SHORT: return ciConstant(bt2, value.s);
613 case T_BYTE: return ciConstant(bt2, value.b);
614 case T_CHAR: return ciConstant(bt2, value.c);
615 case T_BOOLEAN: return ciConstant(bt2, value.z);
616 default: return ciConstant();
617 }
618 }
619 ciObject* ciobj = get_object(obj);
620 if (ciobj->is_array()) {
621 return ciConstant(T_ARRAY, ciobj);
622 } else {
623 assert(ciobj->is_instance(), "should be an instance");
624 return ciConstant(T_OBJECT, ciobj);
625 }
626 }
627 }
628 constantTag tag = cpool->tag_at(index);
629 if (tag.is_int()) {
630 return ciConstant(T_INT, (jint)cpool->int_at(index));
631 } else if (tag.is_long()) {
632 return ciConstant((jlong)cpool->long_at(index));
633 } else if (tag.is_float()) {
634 return ciConstant((jfloat)cpool->float_at(index));
635 } else if (tag.is_double()) {
636 return ciConstant((jdouble)cpool->double_at(index));
637 } else if (tag.is_string()) {
638 oop string = NULL;
639 assert(cache_index >= 0, "should have a cache index");
640 if (cpool->is_pseudo_string_at(index)) {
641 string = cpool->pseudo_string_at(index, cache_index);
642 } else {
643 string = cpool->string_at(index, cache_index, THREAD);
644 if (HAS_PENDING_EXCEPTION) {
645 CLEAR_PENDING_EXCEPTION;
646 record_out_of_memory_failure();
647 return ciConstant();
648 }
649 }
650 ciObject* constant = get_object(string);
651 if (constant->is_array()) {
652 return ciConstant(T_ARRAY, constant);
653 } else {
654 assert (constant->is_instance(), "must be an instance, or not? ");
655 return ciConstant(T_OBJECT, constant);
656 }
657 } else if (tag.is_klass() || tag.is_unresolved_klass()) {
658 // 4881222: allow ldc to take a class type
659 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
660 if (HAS_PENDING_EXCEPTION) {
661 CLEAR_PENDING_EXCEPTION;
662 record_out_of_memory_failure();
663 return ciConstant();
664 }
665 assert (klass->is_instance_klass() || klass->is_array_klass(),
666 "must be an instance or array klass ");
667 return ciConstant(T_OBJECT, klass->java_mirror());
668 } else if (tag.is_method_type()) {
669 // must execute Java code to link this CP entry into cache[i].f1
670 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
671 ciObject* ciobj = get_unloaded_method_type_constant(signature);
672 return ciConstant(T_OBJECT, ciobj);
673 } else if (tag.is_method_handle()) {
674 // must execute Java code to link this CP entry into cache[i].f1
675 int ref_kind = cpool->method_handle_ref_kind_at(index);
676 int callee_index = cpool->method_handle_klass_index_at(index);
677 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
678 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
679 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
680 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
681 return ciConstant(T_OBJECT, ciobj);
682 } else if (tag.is_dynamic_constant()) {
683 return ciConstant();
684 } else {
685 ShouldNotReachHere();
686 return ciConstant();
687 }
688 }
689
690 // ------------------------------------------------------------------
691 // ciEnv::get_constant_by_index
692 //
693 // Pull a constant out of the constant pool. How appropriate.
694 //
695 // Implementation note: this query is currently in no way cached.
696 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
697 int pool_index, int cache_index,
698 ciInstanceKlass* accessor) {
699 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
700 }
701
702 // ------------------------------------------------------------------
703 // ciEnv::get_field_by_index_impl
704 //
705 // Implementation of get_field_by_index.
706 //
707 // Implementation note: the results of field lookups are cached
708 // in the accessor klass.
709 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
710 int index) {
711 ciConstantPoolCache* cache = accessor->field_cache();
712 if (cache == NULL) {
713 ciField* field = new (arena()) ciField(accessor, index);
714 return field;
715 } else {
716 ciField* field = (ciField*)cache->get(index);
717 if (field == NULL) {
718 field = new (arena()) ciField(accessor, index);
719 cache->insert(index, field);
720 }
721 return field;
722 }
723 }
724
725 // ------------------------------------------------------------------
726 // ciEnv::get_field_by_index
727 //
728 // Get a field by index from a klass's constant pool.
729 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
730 int index) {
731 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);)
732 }
733
734 // ------------------------------------------------------------------
735 // ciEnv::lookup_method
736 //
737 // Perform an appropriate method lookup based on accessor, holder,
738 // name, signature, and bytecode.
739 Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
740 ciKlass* holder,
741 Symbol* name,
742 Symbol* sig,
743 Bytecodes::Code bc,
744 constantTag tag) {
745 // Accessibility checks are performed in ciEnv::get_method_by_index_impl.
746 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible");
747
748 InstanceKlass* accessor_klass = accessor->get_instanceKlass();
749 Klass* holder_klass = holder->get_Klass();
750 methodHandle dest_method;
751 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag);
752 switch (bc) {
753 case Bytecodes::_invokestatic:
754 dest_method =
755 LinkResolver::resolve_static_call_or_null(link_info);
756 break;
757 case Bytecodes::_invokespecial:
758 dest_method =
759 LinkResolver::resolve_special_call_or_null(link_info);
760 break;
761 case Bytecodes::_invokeinterface:
762 dest_method =
763 LinkResolver::linktime_resolve_interface_method_or_null(link_info);
764 break;
765 case Bytecodes::_invokevirtual:
766 dest_method =
767 LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
768 break;
769 default: ShouldNotReachHere();
770 }
771
772 return dest_method();
773 }
774
775
776 // ------------------------------------------------------------------
777 // ciEnv::get_method_by_index_impl
778 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
779 int index, Bytecodes::Code bc,
780 ciInstanceKlass* accessor) {
781 if (bc == Bytecodes::_invokedynamic) {
782 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index);
783 bool is_resolved = !cpce->is_f1_null();
784 // FIXME: code generation could allow for null (unlinked) call site
785 // The call site could be made patchable as follows:
786 // Load the appendix argument from the constant pool.
787 // Test the appendix argument and jump to a known deopt routine if it is null.
788 // Jump through a patchable call site, which is initially a deopt routine.
789 // Patch the call site to the nmethod entry point of the static compiled lambda form.
790 // As with other two-component call sites, both values must be independently verified.
791
792 if (is_resolved) {
793 // Get the invoker Method* from the constant pool.
794 // (The appendix argument, if any, will be noted in the method's signature.)
795 Method* adapter = cpce->f1_as_method();
796 return get_method(adapter);
797 }
798
799 // Fake a method that is equivalent to a declared method.
800 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass());
801 ciSymbol* name = ciSymbol::invokeBasic_name();
802 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index));
803 return get_unloaded_method(holder, name, signature, accessor);
804 } else {
805 const int holder_index = cpool->klass_ref_index_at(index);
806 bool holder_is_accessible;
807 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
808
809 // Get the method's name and signature.
810 Symbol* name_sym = cpool->name_ref_at(index);
811 Symbol* sig_sym = cpool->signature_ref_at(index);
812
813 if (cpool->has_preresolution()
814 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
815 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
816 // Short-circuit lookups for JSR 292-related call sites.
817 // That is, do not rely only on name-based lookups, because they may fail
818 // if the names are not resolvable in the boot class loader (7056328).
819 switch (bc) {
820 case Bytecodes::_invokevirtual:
821 case Bytecodes::_invokeinterface:
822 case Bytecodes::_invokespecial:
823 case Bytecodes::_invokestatic:
824 {
825 Method* m = ConstantPool::method_at_if_loaded(cpool, index);
826 if (m != NULL) {
827 return get_method(m);
828 }
829 }
830 break;
831 default:
832 break;
833 }
834 }
835
836 if (holder_is_accessible) { // Our declared holder is loaded.
837 constantTag tag = cpool->tag_ref_at(index);
838 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
839 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
840 if (m != NULL &&
841 (bc == Bytecodes::_invokestatic
842 ? m->method_holder()->is_not_initialized()
843 : !m->method_holder()->is_loaded())) {
844 m = NULL;
845 }
846 #ifdef ASSERT
847 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) {
848 m = NULL;
849 }
850 #endif
851 if (m != NULL) {
852 // We found the method.
853 return get_method(m);
854 }
855 }
856
857 // Either the declared holder was not loaded, or the method could
858 // not be found. Create a dummy ciMethod to represent the failed
859 // lookup.
860 ciSymbol* name = get_symbol(name_sym);
861 ciSymbol* signature = get_symbol(sig_sym);
862 return get_unloaded_method(holder, name, signature, accessor);
863 }
864 }
865
866
867 // ------------------------------------------------------------------
868 // ciEnv::get_instance_klass_for_declared_method_holder
869 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
870 // For the case of <array>.clone(), the method holder can be a ciArrayKlass
871 // instead of a ciInstanceKlass. For that case simply pretend that the
872 // declared holder is Object.clone since that's where the call will bottom out.
873 // A more correct fix would trickle out through many interfaces in CI,
874 // requiring ciInstanceKlass* to become ciKlass* and many more places would
875 // require checks to make sure the expected type was found. Given that this
876 // only occurs for clone() the more extensive fix seems like overkill so
877 // instead we simply smear the array type into Object.
878 guarantee(method_holder != NULL, "no method holder");
879 if (method_holder->is_instance_klass()) {
880 return method_holder->as_instance_klass();
881 } else if (method_holder->is_array_klass()) {
882 return current()->Object_klass();
883 } else {
884 ShouldNotReachHere();
885 }
886 return NULL;
887 }
888
889
890 // ------------------------------------------------------------------
891 // ciEnv::get_method_by_index
892 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
893 int index, Bytecodes::Code bc,
894 ciInstanceKlass* accessor) {
895 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
896 }
897
898
899 // ------------------------------------------------------------------
900 // ciEnv::name_buffer
901 char *ciEnv::name_buffer(int req_len) {
902 if (_name_buffer_len < req_len) {
903 if (_name_buffer == NULL) {
904 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
905 _name_buffer_len = req_len;
906 } else {
907 _name_buffer =
908 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
909 _name_buffer_len = req_len;
910 }
911 }
912 return _name_buffer;
913 }
914
915 // ------------------------------------------------------------------
916 // ciEnv::is_in_vm
917 bool ciEnv::is_in_vm() {
918 return JavaThread::current()->thread_state() == _thread_in_vm;
919 }
920
921 bool ciEnv::system_dictionary_modification_counter_changed() {
922 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications();
923 }
924
925 // ------------------------------------------------------------------
926 // ciEnv::validate_compile_task_dependencies
927 //
928 // Check for changes during compilation (e.g. class loads, evolution,
929 // breakpoints, call site invalidation).
930 void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
931 if (failing()) return; // no need for further checks
932
933 bool counter_changed = system_dictionary_modification_counter_changed();
934 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed);
935 if (result != Dependencies::end_marker) {
936 if (result == Dependencies::call_site_target_value) {
937 _inc_decompile_count_on_failure = false;
938 record_failure("call site target change");
939 } else if (Dependencies::is_klass_type(result)) {
940 record_failure("invalid non-klass dependency");
941 } else {
942 record_failure("concurrent class loading");
943 }
944 }
945 }
946
947 // ------------------------------------------------------------------
948 // ciEnv::register_method
949 void ciEnv::register_method(ciMethod* target,
950 int entry_bci,
951 CodeOffsets* offsets,
952 int orig_pc_offset,
953 CodeBuffer* code_buffer,
954 int frame_words,
955 OopMapSet* oop_map_set,
956 ExceptionHandlerTable* handler_table,
957 ImplicitExceptionTable* inc_table,
958 AbstractCompiler* compiler,
959 bool has_unsafe_access,
960 bool has_wide_vectors,
961 RTMState rtm_state) {
962 VM_ENTRY_MARK;
963 nmethod* nm = NULL;
964 {
965 // To prevent compile queue updates.
966 MutexLocker locker(MethodCompileQueue_lock, THREAD);
967
968 // Prevent SystemDictionary::add_to_hierarchy from running
969 // and invalidating our dependencies until we install this method.
970 // No safepoints are allowed. Otherwise, class redefinition can occur in between.
971 MutexLocker ml(Compile_lock);
972 NoSafepointVerifier nsv;
973
974 // Change in Jvmti state may invalidate compilation.
975 if (!failing() && jvmti_state_changed()) {
976 record_failure("Jvmti state change invalidated dependencies");
977 }
978
979 // Change in DTrace flags may invalidate compilation.
980 if (!failing() &&
981 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) ||
982 (!dtrace_method_probes() && DTraceMethodProbes) ||
983 (!dtrace_alloc_probes() && DTraceAllocProbes) )) {
984 record_failure("DTrace flags change invalidated dependencies");
985 }
986
987 if (!failing()) {
988 if (log() != NULL) {
989 // Log the dependencies which this compilation declares.
990 dependencies()->log_all_dependencies();
991 }
992
993 // Encode the dependencies now, so we can check them right away.
994 dependencies()->encode_content_bytes();
995
996 // Check for {class loads, evolution, breakpoints, ...} during compilation
997 validate_compile_task_dependencies(target);
998 }
999
1000 methodHandle method(THREAD, target->get_Method());
1001
1002 #if INCLUDE_RTM_OPT
1003 if (!failing() && (rtm_state != NoRTM) &&
1004 (method()->method_data() != NULL) &&
1005 (method()->method_data()->rtm_state() != rtm_state)) {
1006 // Preemptive decompile if rtm state was changed.
1007 record_failure("RTM state change invalidated rtm code");
1008 }
1009 #endif
1010
1011 if (failing()) {
1012 // While not a true deoptimization, it is a preemptive decompile.
1013 MethodData* mdo = method()->method_data();
1014 if (mdo != NULL && _inc_decompile_count_on_failure) {
1015 mdo->inc_decompile_count();
1016 }
1017
1018 // All buffers in the CodeBuffer are allocated in the CodeCache.
1019 // If the code buffer is created on each compile attempt
1020 // as in C2, then it must be freed.
1021 code_buffer->free_blob();
1022 return;
1023 }
1024
1025 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
1026 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
1027
1028 nm = nmethod::new_nmethod(method,
1029 compile_id(),
1030 entry_bci,
1031 offsets,
1032 orig_pc_offset,
1033 debug_info(), dependencies(), code_buffer,
1034 frame_words, oop_map_set,
1035 handler_table, inc_table,
1036 compiler, task()->comp_level());
1037
1038 // Free codeBlobs
1039 code_buffer->free_blob();
1040
1041 if (nm != NULL) {
1042 nm->set_has_unsafe_access(has_unsafe_access);
1043 nm->set_has_wide_vectors(has_wide_vectors);
1044 #if INCLUDE_RTM_OPT
1045 nm->set_rtm_state(rtm_state);
1046 #endif
1047
1048 // Record successful registration.
1049 // (Put nm into the task handle *before* publishing to the Java heap.)
1050 if (task() != NULL) {
1051 task()->set_code(nm);
1052 }
1053
1054 if (entry_bci == InvocationEntryBci) {
1055 if (TieredCompilation) {
1056 // If there is an old version we're done with it
1057 CompiledMethod* old = method->code();
1058 if (TraceMethodReplacement && old != NULL) {
1059 ResourceMark rm;
1060 char *method_name = method->name_and_sig_as_C_string();
1061 tty->print_cr("Replacing method %s", method_name);
1062 }
1063 if (old != NULL) {
1064 old->make_not_used();
1065 }
1066 }
1067 if (TraceNMethodInstalls) {
1068 ResourceMark rm;
1069 char *method_name = method->name_and_sig_as_C_string();
1070 ttyLocker ttyl;
1071 tty->print_cr("Installing method (%d) %s ",
1072 task()->comp_level(),
1073 method_name);
1074 }
1075 // Allow the code to be executed
1076 method->set_code(method, nm);
1077 } else {
1078 if (TraceNMethodInstalls) {
1079 ResourceMark rm;
1080 char *method_name = method->name_and_sig_as_C_string();
1081 ttyLocker ttyl;
1082 tty->print_cr("Installing osr method (%d) %s @ %d",
1083 task()->comp_level(),
1084 method_name,
1085 entry_bci);
1086 }
1087 method->method_holder()->add_osr_nmethod(nm);
1088 }
1089 nm->make_in_use();
1090 }
1091 } // safepoints are allowed again
1092
1093 if (nm != NULL) {
1094 // JVMTI -- compiled method notification (must be done outside lock)
1095 nm->post_compiled_method_load_event();
1096 } else {
1097 // The CodeCache is full.
1098 record_failure("code cache is full");
1099 }
1100 }
1101
1102
1103 // ------------------------------------------------------------------
1104 // ciEnv::find_system_klass
1105 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
1106 VM_ENTRY_MARK;
1107 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false);
1108 }
1109
1110 // ------------------------------------------------------------------
1111 // ciEnv::comp_level
1112 int ciEnv::comp_level() {
1113 if (task() == NULL) return CompLevel_highest_tier;
1114 return task()->comp_level();
1115 }
1116
1117 // ------------------------------------------------------------------
1118 // ciEnv::compile_id
1119 uint ciEnv::compile_id() {
1120 if (task() == NULL) return 0;
1121 return task()->compile_id();
1122 }
1123
1124 // ------------------------------------------------------------------
1125 // ciEnv::notice_inlined_method()
1126 void ciEnv::notice_inlined_method(ciMethod* method) {
1127 _num_inlined_bytecodes += method->code_size_for_inlining();
1128 }
1129
1130 // ------------------------------------------------------------------
1131 // ciEnv::num_inlined_bytecodes()
1132 int ciEnv::num_inlined_bytecodes() const {
1133 return _num_inlined_bytecodes;
1134 }
1135
1136 // ------------------------------------------------------------------
1137 // ciEnv::record_failure()
1138 void ciEnv::record_failure(const char* reason) {
1139 if (_failure_reason == NULL) {
1140 // Record the first failure reason.
1141 _failure_reason = reason;
1142 }
1143 }
1144
1145 void ciEnv::report_failure(const char* reason) {
1146 // Create and fire JFR event
1147 EventCompilationFailure event;
1148 if (event.should_commit()) {
1149 event.set_compileId(compile_id());
1150 event.set_failureMessage(reason);
1151 event.commit();
1152 }
1153 }
1154
1155 // ------------------------------------------------------------------
1156 // ciEnv::record_method_not_compilable()
1157 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
1158 int new_compilable =
1159 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
1160
1161 // Only note transitions to a worse state
1162 if (new_compilable > _compilable) {
1163 if (log() != NULL) {
1164 if (all_tiers) {
1165 log()->elem("method_not_compilable");
1166 } else {
1167 log()->elem("method_not_compilable_at_tier level='%d'",
1168 current()->task()->comp_level());
1169 }
1170 }
1171 _compilable = new_compilable;
1172
1173 // Reset failure reason; this one is more important.
1174 _failure_reason = NULL;
1175 record_failure(reason);
1176 }
1177 }
1178
1179 // ------------------------------------------------------------------
1180 // ciEnv::record_out_of_memory_failure()
1181 void ciEnv::record_out_of_memory_failure() {
1182 // If memory is low, we stop compiling methods.
1183 record_method_not_compilable("out of memory");
1184 }
1185
1186 ciInstance* ciEnv::unloaded_ciinstance() {
1187 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
1188 }
1189
1190 // ------------------------------------------------------------------
1191 // ciEnv::dump_replay_data*
1192
1193 // Don't change thread state and acquire any locks.
1194 // Safe to call from VM error reporter.
1195
1196 void ciEnv::dump_compile_data(outputStream* out) {
1197 CompileTask* task = this->task();
1198 if (task) {
1199 Method* method = task->method();
1200 int entry_bci = task->osr_bci();
1201 int comp_level = task->comp_level();
1202 out->print("compile %s %s %s %d %d",
1203 method->klass_name()->as_quoted_ascii(),
1204 method->name()->as_quoted_ascii(),
1205 method->signature()->as_quoted_ascii(),
1206 entry_bci, comp_level);
1207 if (compiler_data() != NULL) {
1208 if (is_c2_compile(comp_level)) {
1209 #ifdef COMPILER2
1210 // Dump C2 inlining data.
1211 ((Compile*)compiler_data())->dump_inline_data(out);
1212 #endif
1213 } else if (is_c1_compile(comp_level)) {
1214 #ifdef COMPILER1
1215 // Dump C1 inlining data.
1216 ((Compilation*)compiler_data())->dump_inline_data(out);
1217 #endif
1218 }
1219 }
1220 out->cr();
1221 }
1222 }
1223
1224 void ciEnv::dump_replay_data_unsafe(outputStream* out) {
1225 ResourceMark rm;
1226 #if INCLUDE_JVMTI
1227 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
1228 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
1229 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
1230 #endif // INCLUDE_JVMTI
1231
1232 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
1233 out->print_cr("# %d ciObject found", objects->length());
1234 for (int i = 0; i < objects->length(); i++) {
1235 objects->at(i)->dump_replay_data(out);
1236 }
1237 dump_compile_data(out);
1238 out->flush();
1239 }
1240
1241 void ciEnv::dump_replay_data(outputStream* out) {
1242 GUARDED_VM_ENTRY(
1243 MutexLocker ml(Compile_lock);
1244 dump_replay_data_unsafe(out);
1245 )
1246 }
1247
1248 void ciEnv::dump_replay_data(int compile_id) {
1249 static char buffer[O_BUFLEN];
1250 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id);
1251 if (ret > 0) {
1252 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1253 if (fd != -1) {
1254 FILE* replay_data_file = os::open(fd, "w");
1255 if (replay_data_file != NULL) {
1256 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1257 dump_replay_data(&replay_data_stream);
1258 tty->print_cr("# Compiler replay data is saved as: %s", buffer);
1259 } else {
1260 tty->print_cr("# Can't open file to dump replay data.");
1261 }
1262 }
1263 }
1264 }
1265
1266 void ciEnv::dump_inline_data(int compile_id) {
1267 static char buffer[O_BUFLEN];
1268 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id);
1269 if (ret > 0) {
1270 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
1271 if (fd != -1) {
1272 FILE* inline_data_file = os::open(fd, "w");
1273 if (inline_data_file != NULL) {
1274 fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
1275 GUARDED_VM_ENTRY(
1276 MutexLocker ml(Compile_lock);
1277 dump_compile_data(&replay_data_stream);
1278 )
1279 replay_data_stream.flush();
1280 tty->print("# Compiler inline data is saved as: ");
1281 tty->print_cr("%s", buffer);
1282 } else {
1283 tty->print_cr("# Can't open file to dump inline data.");
1284 }
1285 }
1286 }
1287 }