1 /*
2 * Copyright (c) 2013, 2025, 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 "ci/ciMethodData.hpp"
26 #include "ci/ciReplay.hpp"
27 #include "ci/ciSymbol.hpp"
28 #include "ci/ciKlass.hpp"
29 #include "ci/ciUtilities.inline.hpp"
30 #include "classfile/javaClasses.hpp"
31 #include "classfile/symbolTable.hpp"
32 #include "classfile/systemDictionary.hpp"
33 #include "compiler/compilationPolicy.hpp"
34 #include "compiler/compileBroker.hpp"
35 #include "compiler/compilerDefinitions.inline.hpp"
36 #include "interpreter/linkResolver.hpp"
37 #include "jvm.h"
38 #include "memory/allocation.inline.hpp"
39 #include "memory/oopFactory.hpp"
40 #include "memory/resourceArea.hpp"
41 #include "oops/constantPool.inline.hpp"
42 #include "oops/cpCache.inline.hpp"
43 #include "oops/fieldStreams.inline.hpp"
44 #include "oops/klass.inline.hpp"
45 #include "oops/method.inline.hpp"
46 #include "oops/oop.inline.hpp"
47 #include "oops/resolvedIndyEntry.hpp"
48 #include "prims/jvmtiExport.hpp"
49 #include "prims/methodHandles.hpp"
50 #include "runtime/fieldDescriptor.inline.hpp"
51 #include "runtime/globals_extension.hpp"
52 #include "runtime/handles.inline.hpp"
53 #include "runtime/java.hpp"
54 #include "runtime/jniHandles.inline.hpp"
55 #include "runtime/threads.hpp"
56 #include "utilities/copy.hpp"
57 #include "utilities/macros.hpp"
58 #include "utilities/utf8.hpp"
59
60 // ciReplay
61
62 typedef struct _ciMethodDataRecord {
63 const char* _klass_name;
64 const char* _method_name;
65 const char* _signature;
66
67 int _state;
68 int _invocation_counter;
69
70 intptr_t* _data;
71 char* _orig_data;
72 Klass** _classes;
73 Method** _methods;
74 int* _classes_offsets;
75 int* _methods_offsets;
76 int _data_length;
77 int _orig_data_length;
78 int _classes_length;
79 int _methods_length;
80 } ciMethodDataRecord;
81
82 typedef struct _ciMethodRecord {
83 const char* _klass_name;
84 const char* _method_name;
85 const char* _signature;
86
87 int _instructions_size;
88 int _interpreter_invocation_count;
89 int _interpreter_throwout_count;
90 int _invocation_counter;
91 int _backedge_counter;
92 } ciMethodRecord;
93
94 typedef struct _ciInstanceKlassRecord {
95 const InstanceKlass* _klass;
96 jobject _java_mirror; // Global handle to java mirror to prevent unloading
97 } ciInstanceKlassRecord;
98
99 typedef struct _ciInlineRecord {
100 const char* _klass_name;
101 const char* _method_name;
102 const char* _signature;
103
104 int _inline_depth;
105 int _inline_bci;
106 bool _inline_late;
107 } ciInlineRecord;
108
109 class CompileReplay;
110 static CompileReplay* replay_state;
111
112 class CompileReplay : public StackObj {
113 private:
114 FILE* _stream;
115 Thread* _thread;
116 Handle _loader;
117 int _version;
118
119 GrowableArray<ciMethodRecord*> _ci_method_records;
120 GrowableArray<ciMethodDataRecord*> _ci_method_data_records;
121 GrowableArray<ciInstanceKlassRecord*> _ci_instance_klass_records;
122
123 // Use pointer because we may need to return inline records
124 // without destroying them.
125 GrowableArray<ciInlineRecord*>* _ci_inline_records;
126
127 const char* _error_message;
128
129 char* _bufptr;
130 char* _buffer;
131 int _buffer_length;
132 ReallocMark _nesting; // Safety checks for arena reallocation
133
134 // "compile" data
135 ciKlass* _iklass;
136 Method* _imethod;
137 int _entry_bci;
138 int _comp_level;
139
140 public:
141 CompileReplay(const char* filename, TRAPS) {
142 _thread = THREAD;
143 _loader = Handle(_thread, SystemDictionary::java_system_loader());
144
145 _stream = os::fopen(filename, "rt");
146 if (_stream == nullptr) {
147 fprintf(stderr, "ERROR: Can't open replay file %s\n", filename);
148 }
149
150 _ci_inline_records = nullptr;
151 _error_message = nullptr;
152
153 _buffer_length = 32;
154 _buffer = NEW_RESOURCE_ARRAY(char, _buffer_length);
155 _bufptr = _buffer;
156
157 _imethod = nullptr;
158 _iklass = nullptr;
159 _entry_bci = 0;
160 _comp_level = 0;
161 _version = 0;
162
163 test();
164 }
165
166 ~CompileReplay() {
167 if (_stream != nullptr) fclose(_stream);
168 }
169
170 void test() {
171 strcpy(_buffer, "1 2 foo 4 bar 0x9 \"this is it\"");
172 _bufptr = _buffer;
173 assert(parse_int("test") == 1, "what");
174 assert(parse_int("test") == 2, "what");
175 assert(strcmp(parse_string(), "foo") == 0, "what");
176 assert(parse_int("test") == 4, "what");
177 assert(strcmp(parse_string(), "bar") == 0, "what");
178 assert(parse_intptr_t("test") == 9, "what");
179 assert(strcmp(parse_quoted_string(), "this is it") == 0, "what");
180 }
181
182 bool had_error() {
183 return _error_message != nullptr || _thread->has_pending_exception();
184 }
185
186 bool can_replay() {
187 return !(_stream == nullptr || had_error());
188 }
189
190 void report_error(const char* msg) {
191 _error_message = msg;
192 }
193
194 int parse_int(const char* label) {
195 if (had_error()) {
196 return 0;
197 }
198
199 int v = 0;
200 int read;
201 if (sscanf(_bufptr, "%i%n", &v, &read) != 1) {
202 report_error(label);
203 } else {
204 _bufptr += read;
205 }
206 return v;
207 }
208
209 intptr_t parse_intptr_t(const char* label) {
210 if (had_error()) {
211 return 0;
212 }
213
214 intptr_t v = 0;
215 int read;
216 if (sscanf(_bufptr, INTPTR_FORMAT "%n", &v, &read) != 1) {
217 report_error(label);
218 } else {
219 _bufptr += read;
220 }
221 return v;
222 }
223
224 void skip_ws() {
225 // Skip any leading whitespace
226 while (*_bufptr == ' ' || *_bufptr == '\t') {
227 _bufptr++;
228 }
229 }
230
231 // Ignore the rest of the line
232 void skip_remaining() {
233 _bufptr = &_bufptr[strlen(_bufptr)]; // skip ahead to terminator
234 }
235
236 char* scan_and_terminate(char delim) {
237 char* str = _bufptr;
238 while (*_bufptr != delim && *_bufptr != '\0') {
239 _bufptr++;
240 }
241 if (*_bufptr != '\0') {
242 *_bufptr++ = '\0';
243 }
244 if (_bufptr == str) {
245 // nothing here
246 return nullptr;
247 }
248 return str;
249 }
250
251 char* parse_string() {
252 if (had_error()) return nullptr;
253
254 skip_ws();
255 return scan_and_terminate(' ');
256 }
257
258 char* parse_quoted_string() {
259 if (had_error()) return nullptr;
260
261 skip_ws();
262
263 if (*_bufptr == '"') {
264 _bufptr++;
265 return scan_and_terminate('"');
266 } else {
267 return scan_and_terminate(' ');
268 }
269 }
270
271 char* parse_escaped_string() {
272 char* result = parse_quoted_string();
273 if (result != nullptr) {
274 unescape_string(result);
275 }
276 return result;
277 }
278
279 // Look for the tag 'tag' followed by an
280 bool parse_tag_and_count(const char* tag, int& length) {
281 const char* t = parse_string();
282 if (t == nullptr) {
283 return false;
284 }
285
286 if (strcmp(tag, t) != 0) {
287 report_error(tag);
288 return false;
289 }
290 length = parse_int("parse_tag_and_count");
291 return !had_error();
292 }
293
294 // Parse a sequence of raw data encoded as bytes and return the
295 // resulting data.
296 char* parse_data(const char* tag, int& length) {
297 int read_size = 0;
298 if (!parse_tag_and_count(tag, read_size)) {
299 return nullptr;
300 }
301
302 int actual_size = sizeof(MethodData::CompilerCounters);
303 char *result = NEW_RESOURCE_ARRAY(char, actual_size);
304 int i = 0;
305 if (read_size != actual_size) {
306 tty->print_cr("Warning: ciMethodData parsing sees MethodData size %i in file, current is %i", read_size,
307 actual_size);
308 // Replay serializes the entire MethodData, but the data is at the end.
309 // If the MethodData instance size has changed, we can pad or truncate in the beginning
310 int padding = actual_size - read_size;
311 if (padding > 0) {
312 // pad missing data with zeros
313 tty->print_cr("- Padding MethodData");
314 for (; i < padding; i++) {
315 result[i] = 0;
316 }
317 } else if (padding < 0) {
318 // drop some data
319 tty->print_cr("- Truncating MethodData");
320 for (int j = 0; j < -padding; j++) {
321 int val = parse_int("data");
322 // discard val
323 }
324 }
325 }
326
327 assert(i < actual_size, "At least some data must remain to be copied");
328 for (; i < actual_size; i++) {
329 int val = parse_int("data");
330 result[i] = val;
331 }
332 length = actual_size;
333 return result;
334 }
335
336 // Parse a standard chunk of data emitted as:
337 // 'tag' <length> # # ...
338 // Where each # is an intptr_t item
339 intptr_t* parse_intptr_data(const char* tag, int& length) {
340 if (!parse_tag_and_count(tag, length)) {
341 return nullptr;
342 }
343
344 intptr_t* result = NEW_RESOURCE_ARRAY(intptr_t, length);
345 for (int i = 0; i < length; i++) {
346 skip_ws();
347 intptr_t val = parse_intptr_t("data");
348 result[i] = val;
349 }
350 return result;
351 }
352
353 // Parse a possibly quoted version of a symbol into a symbolOop
354 Symbol* parse_symbol() {
355 const char* str = parse_escaped_string();
356 if (str != nullptr) {
357 Symbol* sym = SymbolTable::new_symbol(str);
358 return sym;
359 }
360 return nullptr;
361 }
362
363 bool parse_terminator() {
364 char* terminator = parse_string();
365 if (terminator != nullptr && strcmp(terminator, ";") == 0) {
366 return true;
367 }
368 return false;
369 }
370
371 // Parse a special hidden klass location syntax
372 // syntax: @bci <klass> <name> <signature> <bci> <location>* ;
373 // syntax: @cpi <klass> <cpi> <location>* ;
374 Klass* parse_cp_ref(TRAPS) {
375 JavaThread* thread = THREAD;
376 oop obj = nullptr;
377 char* ref = parse_string();
378 if (strcmp(ref, "bci") == 0) {
379 Method* m = parse_method(CHECK_NULL);
380 if (m == nullptr) {
381 return nullptr;
382 }
383
384 InstanceKlass* ik = m->method_holder();
385 const constantPoolHandle cp(Thread::current(), ik->constants());
386
387 // invokedynamic or invokehandle
388
389 methodHandle caller(Thread::current(), m);
390 int bci = parse_int("bci");
391 if (m->validate_bci(bci) != bci) {
392 report_error("bad bci");
393 return nullptr;
394 }
395
396 ik->link_class(CHECK_NULL);
397
398 Bytecode_invoke bytecode = Bytecode_invoke_check(caller, bci);
399 if (!Bytecodes::is_defined(bytecode.code()) || !bytecode.is_valid()) {
400 report_error("no invoke found at bci");
401 return nullptr;
402 }
403 bytecode.verify();
404 int index = bytecode.index();
405
406 CallInfo callInfo;
407 Bytecodes::Code bc = bytecode.invoke_code();
408 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, bc, CHECK_NULL);
409
410 oop appendix = nullptr;
411 Method* adapter_method = nullptr;
412 int pool_index = 0;
413
414 if (bytecode.is_invokedynamic()) {
415 cp->cache()->set_dynamic_call(callInfo, index);
416
417 appendix = cp->resolved_reference_from_indy(index);
418 adapter_method = cp->resolved_indy_entry_at(index)->method();
419 pool_index = cp->resolved_indy_entry_at(index)->constant_pool_index();
420 } else if (bytecode.is_invokehandle()) {
421 #ifdef ASSERT
422 Klass* holder = cp->klass_ref_at(index, bytecode.code(), CHECK_NULL);
423 Symbol* name = cp->name_ref_at(index, bytecode.code());
424 assert(MethodHandles::is_signature_polymorphic_name(holder, name), "");
425 #endif
426 ResolvedMethodEntry* method_entry = cp->cache()->set_method_handle(index, callInfo);
427 appendix = cp->cache()->appendix_if_resolved(method_entry);
428 adapter_method = method_entry->method();
429 pool_index = method_entry->constant_pool_index();
430 } else {
431 report_error("no dynamic invoke found");
432 return nullptr;
433 }
434 char* dyno_ref = parse_string();
435 if (strcmp(dyno_ref, "<appendix>") == 0) {
436 obj = appendix;
437 } else if (strcmp(dyno_ref, "<adapter>") == 0) {
438 if (!parse_terminator()) {
439 report_error("no dynamic invoke found");
440 return nullptr;
441 }
442 Method* adapter = adapter_method;
443 if (adapter == nullptr) {
444 report_error("no adapter found");
445 return nullptr;
446 }
447 return adapter->method_holder();
448 } else if (strcmp(dyno_ref, "<bsm>") == 0) {
449 BootstrapInfo bootstrap_specifier(cp, pool_index, index);
450 obj = cp->resolve_possibly_cached_constant_at(bootstrap_specifier.bsm_index(), CHECK_NULL);
451 } else {
452 report_error("unrecognized token");
453 return nullptr;
454 }
455 } else {
456 // constant pool ref (MethodHandle)
457 if (strcmp(ref, "cpi") != 0) {
458 report_error("unexpected token");
459 return nullptr;
460 }
461
462 Klass* k = parse_klass(CHECK_NULL);
463 if (k == nullptr) {
464 return nullptr;
465 }
466 InstanceKlass* ik = InstanceKlass::cast(k);
467 const constantPoolHandle cp(Thread::current(), ik->constants());
468
469 int cpi = parse_int("cpi");
470
471 if (cpi >= cp->length()) {
472 report_error("bad cpi");
473 return nullptr;
474 }
475 if (!cp->tag_at(cpi).is_method_handle()) {
476 report_error("no method handle found at cpi");
477 return nullptr;
478 }
479 ik->link_class(CHECK_NULL);
480 obj = cp->resolve_possibly_cached_constant_at(cpi, CHECK_NULL);
481 }
482 if (obj == nullptr) {
483 report_error("null cp object found");
484 return nullptr;
485 }
486 Klass* k = nullptr;
487 skip_ws();
488 // loop: read fields
489 char* field = nullptr;
490 do {
491 field = parse_string();
492 if (field == nullptr) {
493 report_error("no field found");
494 return nullptr;
495 }
496 if (strcmp(field, ";") == 0) {
497 break;
498 }
499 // raw Method*
500 if (strcmp(field, "<vmtarget>") == 0) {
501 Method* vmtarget = java_lang_invoke_MemberName::vmtarget(obj);
502 k = (vmtarget == nullptr) ? nullptr : vmtarget->method_holder();
503 if (k == nullptr) {
504 report_error("null vmtarget found");
505 return nullptr;
506 }
507 if (!parse_terminator()) {
508 report_error("missing terminator");
509 return nullptr;
510 }
511 return k;
512 }
513 obj = ciReplay::obj_field(obj, field);
514 // array
515 if (obj != nullptr && obj->is_objArray()) {
516 objArrayOop arr = (objArrayOop)obj;
517 int index = parse_int("index");
518 if (index >= arr->length()) {
519 report_error("bad array index");
520 return nullptr;
521 }
522 obj = arr->obj_at(index);
523 }
524 } while (obj != nullptr);
525 if (obj == nullptr) {
526 report_error("null field found");
527 return nullptr;
528 }
529 k = obj->klass();
530 return k;
531 }
532
533 // Parse a valid klass name and look it up
534 // syntax: <name>
535 // syntax: <constant pool ref>
536 Klass* parse_klass(TRAPS) {
537 skip_ws();
538 // check for constant pool object reference (for a dynamic/hidden class)
539 bool cp_ref = (*_bufptr == '@');
540 if (cp_ref) {
541 ++_bufptr;
542 Klass* k = parse_cp_ref(CHECK_NULL);
543 if (k != nullptr && !k->is_hidden()) {
544 report_error("expected hidden class");
545 return nullptr;
546 }
547 return k;
548 }
549 char* str = parse_escaped_string();
550 Symbol* klass_name = SymbolTable::new_symbol(str);
551 if (klass_name != nullptr) {
552 Klass* k = nullptr;
553 if (_iklass != nullptr) {
554 k = (Klass*)_iklass->find_klass(ciSymbol::make(klass_name->as_C_string()))->constant_encoding();
555 } else {
556 k = SystemDictionary::resolve_or_fail(klass_name, _loader, true, THREAD);
557 }
558 if (HAS_PENDING_EXCEPTION) {
559 oop throwable = PENDING_EXCEPTION;
560 java_lang_Throwable::print(throwable, tty);
561 tty->cr();
562 report_error(str);
563 if (ReplayIgnoreInitErrors) {
564 CLEAR_PENDING_EXCEPTION;
565 _error_message = nullptr;
566 }
567 return nullptr;
568 }
569 return k;
570 }
571 return nullptr;
572 }
573
574 // Lookup a klass
575 Klass* resolve_klass(const char* klass, TRAPS) {
576 Symbol* klass_name = SymbolTable::new_symbol(klass);
577 return SystemDictionary::resolve_or_fail(klass_name, _loader, true, THREAD);
578 }
579
580 // Parse the standard tuple of <klass> <name> <signature>
581 Method* parse_method(TRAPS) {
582 InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL);
583 if (k == nullptr) {
584 report_error("Can't find holder klass");
585 return nullptr;
586 }
587 Symbol* method_name = parse_symbol();
588 Symbol* method_signature = parse_symbol();
589 Method* m = k->find_method(method_name, method_signature);
590 if (m == nullptr) {
591 report_error("Can't find method");
592 }
593 return m;
594 }
595
596 int get_line(int c) {
597 int buffer_pos = 0;
598 while(c != EOF) {
599 if (buffer_pos + 1 >= _buffer_length) {
600 _nesting.check(); // Check if a reallocation in the resource arena is safe
601 int new_length = _buffer_length * 2;
602 // Next call will throw error in case of OOM.
603 _buffer = REALLOC_RESOURCE_ARRAY(char, _buffer, _buffer_length, new_length);
604 _buffer_length = new_length;
605 }
606 if (c == '\n') {
607 c = getc(_stream); // get next char
608 break;
609 } else if (c == '\r') {
610 // skip LF
611 } else {
612 _buffer[buffer_pos++] = c;
613 }
614 c = getc(_stream);
615 }
616 // null terminate it, reset the pointer
617 _buffer[buffer_pos] = '\0'; // NL or EOF
618 _bufptr = _buffer;
619 return c;
620 }
621
622 // Process each line of the replay file executing each command until
623 // the file ends.
624 void process(TRAPS) {
625 int line_no = 1;
626 int c = getc(_stream);
627 while(c != EOF) {
628 c = get_line(c);
629 process_command(false, THREAD);
630 if (had_error()) {
631 int pos = _bufptr - _buffer + 1;
632 tty->print_cr("Error while parsing line %d at position %d: %s\n", line_no, pos, _error_message);
633 if (ReplayIgnoreInitErrors) {
634 CLEAR_PENDING_EXCEPTION;
635 _error_message = nullptr;
636 } else {
637 return;
638 }
639 }
640 line_no++;
641 }
642 reset();
643 }
644
645 void process_command(bool is_replay_inline, TRAPS) {
646 char* cmd = parse_string();
647 if (cmd == nullptr) {
648 return;
649 }
650 if (strcmp("#", cmd) == 0) {
651 // comment line, print or ignore
652 if (Verbose) {
653 tty->print_cr("# %s", _bufptr);
654 }
655 skip_remaining();
656 } else if (strcmp("version", cmd) == 0) {
657 _version = parse_int("version");
658 if (_version < 0 || _version > REPLAY_VERSION) {
659 tty->print_cr("# unrecognized version %d, expected 0 <= version <= %d", _version, REPLAY_VERSION);
660 }
661 } else if (strcmp("compile", cmd) == 0) {
662 process_compile(CHECK);
663 } else if (!is_replay_inline) {
664 if (strcmp("ciMethod", cmd) == 0) {
665 process_ciMethod(CHECK);
666 } else if (strcmp("ciMethodData", cmd) == 0) {
667 process_ciMethodData(CHECK);
668 } else if (strcmp("staticfield", cmd) == 0) {
669 process_staticfield(CHECK);
670 } else if (strcmp("ciInstanceKlass", cmd) == 0) {
671 process_ciInstanceKlass(CHECK);
672 } else if (strcmp("instanceKlass", cmd) == 0) {
673 process_instanceKlass(CHECK);
674 #if INCLUDE_JVMTI
675 } else if (strcmp("JvmtiExport", cmd) == 0) {
676 process_JvmtiExport(CHECK);
677 #endif // INCLUDE_JVMTI
678 } else {
679 report_error("unknown command");
680 }
681 } else {
682 report_error("unknown command");
683 }
684 if (!had_error() && *_bufptr != '\0') {
685 report_error("line not properly terminated");
686 }
687 }
688
689 // validation of comp_level
690 bool is_valid_comp_level(int comp_level) {
691 const int msg_len = 256;
692 char* msg = nullptr;
693 if (!is_compile(comp_level)) {
694 msg = NEW_RESOURCE_ARRAY(char, msg_len);
695 jio_snprintf(msg, msg_len, "%d isn't compilation level", comp_level);
696 } else if (is_c1_compile(comp_level) && !CompilerConfig::is_c1_enabled()) {
697 msg = NEW_RESOURCE_ARRAY(char, msg_len);
698 jio_snprintf(msg, msg_len, "compilation level %d requires C1", comp_level);
699 } else if (is_c2_compile(comp_level) && !CompilerConfig::is_c2_enabled()) {
700 msg = NEW_RESOURCE_ARRAY(char, msg_len);
701 jio_snprintf(msg, msg_len, "compilation level %d requires C2", comp_level);
702 }
703 if (msg != nullptr) {
704 report_error(msg);
705 return false;
706 }
707 return true;
708 }
709
710 // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> (<depth> <bci> <klass> <name> <signature>)*
711 void* process_inline(ciMethod* imethod, Method* m, int entry_bci, int comp_level, TRAPS) {
712 _imethod = m;
713 _iklass = imethod->holder();
714 _entry_bci = entry_bci;
715 _comp_level = comp_level;
716 int line_no = 1;
717 int c = getc(_stream);
718 while(c != EOF) {
719 c = get_line(c);
720 process_command(true, CHECK_NULL);
721 if (had_error()) {
722 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
723 tty->print_cr("%s", _buffer);
724 return nullptr;
725 }
726 if (_ci_inline_records != nullptr && _ci_inline_records->length() > 0) {
727 // Found inlining record for the requested method.
728 return _ci_inline_records;
729 }
730 line_no++;
731 }
732 return nullptr;
733 }
734
735 // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> (<depth> <bci> <inline_late> <klass> <name> <signature>)*
736 void process_compile(TRAPS) {
737 Method* method = parse_method(CHECK);
738 if (had_error()) return;
739 int entry_bci = parse_int("entry_bci");
740 int comp_level = parse_int("comp_level");
741 if (!is_valid_comp_level(comp_level)) {
742 return;
743 }
744 if (_imethod != nullptr) {
745 // Replay Inlining
746 if (entry_bci != _entry_bci || comp_level != _comp_level) {
747 return;
748 }
749 const char* iklass_name = _imethod->method_holder()->name()->as_utf8();
750 const char* imethod_name = _imethod->name()->as_utf8();
751 const char* isignature = _imethod->signature()->as_utf8();
752 const char* klass_name = method->method_holder()->name()->as_utf8();
753 const char* method_name = method->name()->as_utf8();
754 const char* signature = method->signature()->as_utf8();
755 if (strcmp(iklass_name, klass_name) != 0 ||
756 strcmp(imethod_name, method_name) != 0 ||
757 strcmp(isignature, signature) != 0) {
758 return;
759 }
760 }
761 int inline_count = 0;
762 if (parse_tag_and_count("inline", inline_count)) {
763 // Record inlining data
764 _ci_inline_records = new GrowableArray<ciInlineRecord*>();
765 for (int i = 0; i < inline_count; i++) {
766 int depth = parse_int("inline_depth");
767 int bci = parse_int("inline_bci");
768 if (had_error()) {
769 break;
770 }
771 int inline_late = 0;
772 if (_version >= 2) {
773 inline_late = parse_int("inline_late");
774 if (had_error()) {
775 break;
776 }
777 }
778
779 Method* inl_method = parse_method(CHECK);
780 if (had_error()) {
781 break;
782 }
783 new_ciInlineRecord(inl_method, bci, depth, inline_late);
784 }
785 }
786 if (_imethod != nullptr) {
787 return; // Replay Inlining
788 }
789 InstanceKlass* ik = method->method_holder();
790 ik->initialize(THREAD);
791 if (HAS_PENDING_EXCEPTION) {
792 oop throwable = PENDING_EXCEPTION;
793 java_lang_Throwable::print(throwable, tty);
794 tty->cr();
795 if (ReplayIgnoreInitErrors) {
796 CLEAR_PENDING_EXCEPTION;
797 ik->set_init_state(InstanceKlass::fully_initialized);
798 } else {
799 return;
800 }
801 }
802 // Make sure the existence of a prior compile doesn't stop this one
803 nmethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, comp_level, true) : method->code();
804 if (nm != nullptr) {
805 nm->make_not_entrant();
806 }
807 replay_state = this;
808 CompileBroker::compile_method(methodHandle(THREAD, method), entry_bci, comp_level,
809 methodHandle(), 0, CompileTask::Reason_Replay, THREAD);
810 replay_state = nullptr;
811 }
812
813 // ciMethod <klass> <name> <signature> <invocation_counter> <backedge_counter> <interpreter_invocation_count> <interpreter_throwout_count> <instructions_size>
814 void process_ciMethod(TRAPS) {
815 Method* method = parse_method(CHECK);
816 if (had_error()) return;
817 ciMethodRecord* rec = new_ciMethod(method);
818 rec->_invocation_counter = parse_int("invocation_counter");
819 rec->_backedge_counter = parse_int("backedge_counter");
820 rec->_interpreter_invocation_count = parse_int("interpreter_invocation_count");
821 rec->_interpreter_throwout_count = parse_int("interpreter_throwout_count");
822 rec->_instructions_size = parse_int("instructions_size");
823 }
824
825 // ciMethodData <klass> <name> <signature> <state> <invocation_counter> orig <length> <byte>* data <length> <ptr>* oops <length> (<offset> <klass>)* methods <length> (<offset> <klass> <name> <signature>)*
826 void process_ciMethodData(TRAPS) {
827 Method* method = parse_method(CHECK);
828 if (had_error()) return;
829 /* just copied from Method, to build interpret data*/
830
831 // To be properly initialized, some profiling in the MDO needs the
832 // method to be rewritten (number of arguments at a call for instance)
833 method->method_holder()->link_class(CHECK);
834 assert(method->method_data() == nullptr, "Should only be initialized once");
835 method->build_profiling_method_data(methodHandle(THREAD, method), CHECK);
836
837 // collect and record all the needed information for later
838 ciMethodDataRecord* rec = new_ciMethodData(method);
839 rec->_state = parse_int("state");
840 if (_version < 1) {
841 parse_int("current_mileage");
842 } else {
843 rec->_invocation_counter = parse_int("invocation_counter");
844 }
845
846 rec->_orig_data = parse_data("orig", rec->_orig_data_length);
847 if (rec->_orig_data == nullptr) {
848 return;
849 }
850 rec->_data = parse_intptr_data("data", rec->_data_length);
851 if (rec->_data == nullptr) {
852 return;
853 }
854 if (!parse_tag_and_count("oops", rec->_classes_length)) {
855 return;
856 }
857 rec->_classes = NEW_RESOURCE_ARRAY(Klass*, rec->_classes_length);
858 rec->_classes_offsets = NEW_RESOURCE_ARRAY(int, rec->_classes_length);
859 for (int i = 0; i < rec->_classes_length; i++) {
860 int offset = parse_int("offset");
861 if (had_error()) {
862 return;
863 }
864 Klass* k = parse_klass(CHECK);
865 rec->_classes_offsets[i] = offset;
866 rec->_classes[i] = k;
867 }
868
869 if (!parse_tag_and_count("methods", rec->_methods_length)) {
870 return;
871 }
872 rec->_methods = NEW_RESOURCE_ARRAY(Method*, rec->_methods_length);
873 rec->_methods_offsets = NEW_RESOURCE_ARRAY(int, rec->_methods_length);
874 for (int i = 0; i < rec->_methods_length; i++) {
875 int offset = parse_int("offset");
876 if (had_error()) {
877 return;
878 }
879 Method* m = parse_method(CHECK);
880 rec->_methods_offsets[i] = offset;
881 rec->_methods[i] = m;
882 }
883 }
884
885 // instanceKlass <name>
886 // instanceKlass <constant pool ref> # <original hidden class name>
887 //
888 // Loads and initializes the klass 'name'. This can be used to
889 // create particular class loading environments
890 void process_instanceKlass(TRAPS) {
891 // just load the referenced class
892 Klass* k = parse_klass(CHECK);
893
894 if (k == nullptr) {
895 return;
896 }
897 const char* comment = parse_string();
898 bool is_comment = comment != nullptr && strcmp(comment, "#") == 0;
899 if (k->is_hidden() != is_comment) {
900 report_error("hidden class with comment expected");
901 return;
902 }
903 // comment, print or ignore
904 if (is_comment) {
905 if (Verbose) {
906 const char* hidden = parse_string();
907 tty->print_cr("Found %s for %s", k->name()->as_quoted_ascii(), hidden);
908 }
909 skip_remaining();
910 }
911 }
912
913 // ciInstanceKlass <name> <is_linked> <is_initialized> <length> tag*
914 //
915 // Load the klass 'name' and link or initialize it. Verify that the
916 // constant pool is the same length as 'length' and make sure the
917 // constant pool tags are in the same state.
918 void process_ciInstanceKlass(TRAPS) {
919 InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK);
920 if (k == nullptr) {
921 skip_remaining();
922 return;
923 }
924 int is_linked = parse_int("is_linked");
925 int is_initialized = parse_int("is_initialized");
926 int length = parse_int("length");
927 if (is_initialized) {
928 k->initialize(THREAD);
929 if (HAS_PENDING_EXCEPTION) {
930 oop throwable = PENDING_EXCEPTION;
931 java_lang_Throwable::print(throwable, tty);
932 tty->cr();
933 if (ReplayIgnoreInitErrors) {
934 CLEAR_PENDING_EXCEPTION;
935 k->set_init_state(InstanceKlass::fully_initialized);
936 } else {
937 return;
938 }
939 }
940 } else if (is_linked) {
941 k->link_class(CHECK);
942 }
943 new_ciInstanceKlass(k);
944 ConstantPool* cp = k->constants();
945 if (length != cp->length()) {
946 report_error("constant pool length mismatch: wrong class files?");
947 return;
948 }
949
950 int parsed_two_word = 0;
951 for (int i = 1; i < length; i++) {
952 int tag = parse_int("tag");
953 if (had_error()) {
954 return;
955 }
956 switch (cp->tag_at(i).value()) {
957 case JVM_CONSTANT_UnresolvedClass: {
958 if (tag == JVM_CONSTANT_Class) {
959 tty->print_cr("Resolving klass %s at %d", cp->klass_name_at(i)->as_utf8(), i);
960 Klass* k = cp->klass_at(i, CHECK);
961 }
962 break;
963 }
964 case JVM_CONSTANT_Long:
965 case JVM_CONSTANT_Double:
966 parsed_two_word = i + 1;
967
968 case JVM_CONSTANT_ClassIndex:
969 case JVM_CONSTANT_StringIndex:
970 case JVM_CONSTANT_String:
971 case JVM_CONSTANT_UnresolvedClassInError:
972 case JVM_CONSTANT_Fieldref:
973 case JVM_CONSTANT_Methodref:
974 case JVM_CONSTANT_InterfaceMethodref:
975 case JVM_CONSTANT_NameAndType:
976 case JVM_CONSTANT_Utf8:
977 case JVM_CONSTANT_Integer:
978 case JVM_CONSTANT_Float:
979 case JVM_CONSTANT_MethodHandle:
980 case JVM_CONSTANT_MethodType:
981 case JVM_CONSTANT_Dynamic:
982 case JVM_CONSTANT_InvokeDynamic:
983 if (tag != cp->tag_at(i).value()) {
984 report_error("tag mismatch: wrong class files?");
985 return;
986 }
987 break;
988
989 case JVM_CONSTANT_Class:
990 if (tag == JVM_CONSTANT_UnresolvedClass) {
991 Klass* k = cp->klass_at(i, CHECK);
992 tty->print_cr("Warning: entry was unresolved in the replay data: %s", k->name()->as_utf8());
993 } else if (tag != JVM_CONSTANT_Class) {
994 report_error("Unexpected tag");
995 return;
996 }
997 break;
998
999 case 0:
1000 if (parsed_two_word == i) continue;
1001
1002 default:
1003 fatal("Unexpected tag: %d", cp->tag_at(i).value());
1004 break;
1005 }
1006
1007 }
1008 }
1009
1010 // staticfield <klass> <name> <signature> <value>
1011 //
1012 // Initialize a class and fill in the value for a static field.
1013 // This is useful when the compile was dependent on the value of
1014 // static fields but it's impossible to properly rerun the static
1015 // initializer.
1016 void process_staticfield(TRAPS) {
1017 InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK);
1018
1019 if (k == nullptr || ReplaySuppressInitializers == 0 ||
1020 (ReplaySuppressInitializers == 2 && k->class_loader() == nullptr)) {
1021 skip_remaining();
1022 return;
1023 }
1024
1025 assert(k->is_initialized(), "must be");
1026
1027 const char* field_name = parse_escaped_string();
1028 const char* field_signature = parse_string();
1029 fieldDescriptor fd;
1030 Symbol* name = SymbolTable::new_symbol(field_name);
1031 Symbol* sig = SymbolTable::new_symbol(field_signature);
1032 if (!k->find_local_field(name, sig, &fd) ||
1033 !fd.is_static() ||
1034 fd.has_initial_value()) {
1035 report_error(field_name);
1036 return;
1037 }
1038
1039 oop java_mirror = k->java_mirror();
1040 if (field_signature[0] == JVM_SIGNATURE_ARRAY) {
1041 int length = parse_int("array length");
1042 oop value = nullptr;
1043
1044 if (length != -1) {
1045 if (field_signature[1] == JVM_SIGNATURE_ARRAY) {
1046 // multi dimensional array
1047 ArrayKlass* kelem = (ArrayKlass *)parse_klass(CHECK);
1048 if (kelem == nullptr) {
1049 return;
1050 }
1051 int rank = 0;
1052 while (field_signature[rank] == JVM_SIGNATURE_ARRAY) {
1053 rank++;
1054 }
1055 jint* dims = NEW_RESOURCE_ARRAY(jint, rank);
1056 dims[0] = length;
1057 for (int i = 1; i < rank; i++) {
1058 dims[i] = 1; // These aren't relevant to the compiler
1059 }
1060 value = kelem->multi_allocate(rank, dims, CHECK);
1061 } else {
1062 if (strcmp(field_signature, "[B") == 0) {
1063 value = oopFactory::new_byteArray(length, CHECK);
1064 } else if (strcmp(field_signature, "[Z") == 0) {
1065 value = oopFactory::new_boolArray(length, CHECK);
1066 } else if (strcmp(field_signature, "[C") == 0) {
1067 value = oopFactory::new_charArray(length, CHECK);
1068 } else if (strcmp(field_signature, "[S") == 0) {
1069 value = oopFactory::new_shortArray(length, CHECK);
1070 } else if (strcmp(field_signature, "[F") == 0) {
1071 value = oopFactory::new_floatArray(length, CHECK);
1072 } else if (strcmp(field_signature, "[D") == 0) {
1073 value = oopFactory::new_doubleArray(length, CHECK);
1074 } else if (strcmp(field_signature, "[I") == 0) {
1075 value = oopFactory::new_intArray(length, CHECK);
1076 } else if (strcmp(field_signature, "[J") == 0) {
1077 value = oopFactory::new_longArray(length, CHECK);
1078 } else if (field_signature[0] == JVM_SIGNATURE_ARRAY &&
1079 field_signature[1] == JVM_SIGNATURE_CLASS) {
1080 Klass* actual_array_klass = parse_klass(CHECK);
1081 Klass* kelem = ObjArrayKlass::cast(actual_array_klass)->element_klass();
1082 value = oopFactory::new_objArray(kelem, length, CHECK);
1083 } else {
1084 report_error("unhandled array staticfield");
1085 }
1086 }
1087 }
1088 java_mirror->obj_field_put(fd.offset(), value);
1089 } else {
1090 const char* string_value = parse_escaped_string();
1091 if (strcmp(field_signature, "I") == 0) {
1092 int value = atoi(string_value);
1093 java_mirror->int_field_put(fd.offset(), value);
1094 } else if (strcmp(field_signature, "B") == 0) {
1095 int value = atoi(string_value);
1096 java_mirror->byte_field_put(fd.offset(), value);
1097 } else if (strcmp(field_signature, "C") == 0) {
1098 int value = atoi(string_value);
1099 java_mirror->char_field_put(fd.offset(), value);
1100 } else if (strcmp(field_signature, "S") == 0) {
1101 int value = atoi(string_value);
1102 java_mirror->short_field_put(fd.offset(), value);
1103 } else if (strcmp(field_signature, "Z") == 0) {
1104 int value = atoi(string_value);
1105 java_mirror->bool_field_put(fd.offset(), value);
1106 } else if (strcmp(field_signature, "J") == 0) {
1107 jlong value;
1108 if (sscanf(string_value, JLONG_FORMAT, &value) != 1) {
1109 fprintf(stderr, "Error parsing long: %s\n", string_value);
1110 return;
1111 }
1112 java_mirror->long_field_put(fd.offset(), value);
1113 } else if (strcmp(field_signature, "F") == 0) {
1114 float value = atof(string_value);
1115 java_mirror->float_field_put(fd.offset(), value);
1116 } else if (strcmp(field_signature, "D") == 0) {
1117 double value = atof(string_value);
1118 java_mirror->double_field_put(fd.offset(), value);
1119 } else if (strcmp(field_signature, "Ljava/lang/String;") == 0) {
1120 Handle value = java_lang_String::create_from_str(string_value, CHECK);
1121 java_mirror->obj_field_put(fd.offset(), value());
1122 } else if (field_signature[0] == JVM_SIGNATURE_CLASS) {
1123 oop value = nullptr;
1124 if (string_value != nullptr) {
1125 Klass* k = resolve_klass(string_value, CHECK);
1126 value = InstanceKlass::cast(k)->allocate_instance(CHECK);
1127 }
1128 java_mirror->obj_field_put(fd.offset(), value);
1129 } else {
1130 report_error("unhandled staticfield");
1131 }
1132 }
1133 }
1134
1135 #if INCLUDE_JVMTI
1136 // JvmtiExport <field> <value>
1137 void process_JvmtiExport(TRAPS) {
1138 const char* field = parse_string();
1139 bool value = parse_int("JvmtiExport flag") != 0;
1140 if (strcmp(field, "can_access_local_variables") == 0) {
1141 JvmtiExport::set_can_access_local_variables(value);
1142 } else if (strcmp(field, "can_hotswap_or_post_breakpoint") == 0) {
1143 JvmtiExport::set_can_hotswap_or_post_breakpoint(value);
1144 } else if (strcmp(field, "can_post_on_exceptions") == 0) {
1145 JvmtiExport::set_can_post_on_exceptions(value);
1146 } else {
1147 report_error("Unrecognized JvmtiExport directive");
1148 }
1149 }
1150 #endif // INCLUDE_JVMTI
1151
1152 // Create and initialize a record for a ciMethod
1153 ciMethodRecord* new_ciMethod(Method* method) {
1154 ciMethodRecord* rec = NEW_RESOURCE_OBJ(ciMethodRecord);
1155 rec->_klass_name = method->method_holder()->name()->as_utf8();
1156 rec->_method_name = method->name()->as_utf8();
1157 rec->_signature = method->signature()->as_utf8();
1158 _ci_method_records.append(rec);
1159 return rec;
1160 }
1161
1162 // Lookup data for a ciMethod
1163 ciMethodRecord* find_ciMethodRecord(Method* method) {
1164 const char* klass_name = method->method_holder()->name()->as_utf8();
1165 const char* method_name = method->name()->as_utf8();
1166 const char* signature = method->signature()->as_utf8();
1167 for (int i = 0; i < _ci_method_records.length(); i++) {
1168 ciMethodRecord* rec = _ci_method_records.at(i);
1169 if (strcmp(rec->_klass_name, klass_name) == 0 &&
1170 strcmp(rec->_method_name, method_name) == 0 &&
1171 strcmp(rec->_signature, signature) == 0) {
1172 return rec;
1173 }
1174 }
1175 return nullptr;
1176 }
1177
1178 // Create and initialize a record for a ciInstanceKlass which was present at replay dump time.
1179 void new_ciInstanceKlass(const InstanceKlass* klass) {
1180 ciInstanceKlassRecord* rec = NEW_RESOURCE_OBJ(ciInstanceKlassRecord);
1181 rec->_klass = klass;
1182 oop java_mirror = klass->java_mirror();
1183 Handle h_java_mirror(_thread, java_mirror);
1184 rec->_java_mirror = JNIHandles::make_global(h_java_mirror);
1185 _ci_instance_klass_records.append(rec);
1186 }
1187
1188 // Check if a ciInstanceKlass was present at replay dump time for a klass.
1189 ciInstanceKlassRecord* find_ciInstanceKlass(const InstanceKlass* klass) {
1190 for (int i = 0; i < _ci_instance_klass_records.length(); i++) {
1191 ciInstanceKlassRecord* rec = _ci_instance_klass_records.at(i);
1192 if (klass == rec->_klass) {
1193 // ciInstanceKlass for this klass was resolved.
1194 return rec;
1195 }
1196 }
1197 return nullptr;
1198 }
1199
1200 // Create and initialize a record for a ciMethodData
1201 ciMethodDataRecord* new_ciMethodData(Method* method) {
1202 ciMethodDataRecord* rec = NEW_RESOURCE_OBJ(ciMethodDataRecord);
1203 rec->_klass_name = method->method_holder()->name()->as_utf8();
1204 rec->_method_name = method->name()->as_utf8();
1205 rec->_signature = method->signature()->as_utf8();
1206 _ci_method_data_records.append(rec);
1207 return rec;
1208 }
1209
1210 // Lookup data for a ciMethodData
1211 ciMethodDataRecord* find_ciMethodDataRecord(Method* method) {
1212 const char* klass_name = method->method_holder()->name()->as_utf8();
1213 const char* method_name = method->name()->as_utf8();
1214 const char* signature = method->signature()->as_utf8();
1215 for (int i = 0; i < _ci_method_data_records.length(); i++) {
1216 ciMethodDataRecord* rec = _ci_method_data_records.at(i);
1217 if (strcmp(rec->_klass_name, klass_name) == 0 &&
1218 strcmp(rec->_method_name, method_name) == 0 &&
1219 strcmp(rec->_signature, signature) == 0) {
1220 return rec;
1221 }
1222 }
1223 return nullptr;
1224 }
1225
1226 // Create and initialize a record for a ciInlineRecord
1227 ciInlineRecord* new_ciInlineRecord(Method* method, int bci, int depth, int inline_late) {
1228 ciInlineRecord* rec = NEW_RESOURCE_OBJ(ciInlineRecord);
1229 rec->_klass_name = method->method_holder()->name()->as_utf8();
1230 rec->_method_name = method->name()->as_utf8();
1231 rec->_signature = method->signature()->as_utf8();
1232 rec->_inline_bci = bci;
1233 rec->_inline_depth = depth;
1234 rec->_inline_late = inline_late;
1235 _ci_inline_records->append(rec);
1236 return rec;
1237 }
1238
1239 // Lookup inlining data for a ciMethod
1240 ciInlineRecord* find_ciInlineRecord(Method* method, int bci, int depth) {
1241 if (_ci_inline_records != nullptr) {
1242 return find_ciInlineRecord(_ci_inline_records, method, bci, depth);
1243 }
1244 return nullptr;
1245 }
1246
1247 static ciInlineRecord* find_ciInlineRecord(GrowableArray<ciInlineRecord*>* records,
1248 Method* method, int bci, int depth) {
1249 if (records != nullptr) {
1250 const char* klass_name = method->method_holder()->name()->as_utf8();
1251 const char* method_name = method->name()->as_utf8();
1252 const char* signature = method->signature()->as_utf8();
1253 for (int i = 0; i < records->length(); i++) {
1254 ciInlineRecord* rec = records->at(i);
1255 if ((rec->_inline_bci == bci) &&
1256 (rec->_inline_depth == depth) &&
1257 (strcmp(rec->_klass_name, klass_name) == 0) &&
1258 (strcmp(rec->_method_name, method_name) == 0) &&
1259 (strcmp(rec->_signature, signature) == 0)) {
1260 return rec;
1261 }
1262 }
1263 }
1264 return nullptr;
1265 }
1266
1267 const char* error_message() {
1268 return _error_message;
1269 }
1270
1271 void reset() {
1272 _error_message = nullptr;
1273 _ci_method_records.clear();
1274 _ci_method_data_records.clear();
1275 }
1276
1277 // Take an ascii string contain \u#### escapes and convert it to utf8
1278 // in place.
1279 static void unescape_string(char* value) {
1280 char* from = value;
1281 char* to = value;
1282 while (*from != '\0') {
1283 if (*from != '\\') {
1284 *from++ = *to++;
1285 } else {
1286 switch (from[1]) {
1287 case 'u': {
1288 from += 2;
1289 jchar value=0;
1290 for (int i=0; i<4; i++) {
1291 char c = *from++;
1292 switch (c) {
1293 case '0': case '1': case '2': case '3': case '4':
1294 case '5': case '6': case '7': case '8': case '9':
1295 value = (value << 4) + c - '0';
1296 break;
1297 case 'a': case 'b': case 'c':
1298 case 'd': case 'e': case 'f':
1299 value = (value << 4) + 10 + c - 'a';
1300 break;
1301 case 'A': case 'B': case 'C':
1302 case 'D': case 'E': case 'F':
1303 value = (value << 4) + 10 + c - 'A';
1304 break;
1305 default:
1306 ShouldNotReachHere();
1307 }
1308 }
1309 UNICODE::convert_to_utf8(&value, 1, to);
1310 to++;
1311 break;
1312 }
1313 case 't': *to++ = '\t'; from += 2; break;
1314 case 'n': *to++ = '\n'; from += 2; break;
1315 case 'r': *to++ = '\r'; from += 2; break;
1316 case 'f': *to++ = '\f'; from += 2; break;
1317 default:
1318 ShouldNotReachHere();
1319 }
1320 }
1321 }
1322 *from = *to;
1323 }
1324 };
1325
1326 void ciReplay::replay(TRAPS) {
1327 int exit_code = replay_impl(THREAD);
1328
1329 Threads::destroy_vm();
1330
1331 vm_exit(exit_code);
1332 }
1333
1334 bool ciReplay::no_replay_state() {
1335 return replay_state == nullptr;
1336 }
1337
1338 void* ciReplay::load_inline_data(ciMethod* method, int entry_bci, int comp_level) {
1339 if (FLAG_IS_DEFAULT(InlineDataFile)) {
1340 tty->print_cr("ERROR: no inline replay data file specified (use -XX:InlineDataFile=inline_pid12345.txt).");
1341 return nullptr;
1342 }
1343
1344 VM_ENTRY_MARK;
1345 // Load and parse the replay data
1346 CompileReplay rp(InlineDataFile, THREAD);
1347 if (!rp.can_replay()) {
1348 tty->print_cr("ciReplay: !rp.can_replay()");
1349 return nullptr;
1350 }
1351 void* data = rp.process_inline(method, method->get_Method(), entry_bci, comp_level, THREAD);
1352 if (HAS_PENDING_EXCEPTION) {
1353 Handle throwable(THREAD, PENDING_EXCEPTION);
1354 CLEAR_PENDING_EXCEPTION;
1355 java_lang_Throwable::print_stack_trace(throwable, tty);
1356 tty->cr();
1357 return nullptr;
1358 }
1359
1360 if (rp.had_error()) {
1361 tty->print_cr("ciReplay: Failed on %s", rp.error_message());
1362 return nullptr;
1363 }
1364 return data;
1365 }
1366
1367 int ciReplay::replay_impl(TRAPS) {
1368 HandleMark hm(THREAD);
1369 ResourceMark rm(THREAD);
1370
1371 if (ReplaySuppressInitializers > 2) {
1372 // ReplaySuppressInitializers > 2 means that we want to allow
1373 // normal VM bootstrap but once we get into the replay itself
1374 // don't allow any initializers to be run.
1375 ReplaySuppressInitializers = 1;
1376 }
1377
1378 if (FLAG_IS_DEFAULT(ReplayDataFile)) {
1379 tty->print_cr("ERROR: no compiler replay data file specified (use -XX:ReplayDataFile=replay_pid12345.txt).");
1380 return 1;
1381 }
1382
1383 // Load and parse the replay data
1384 CompileReplay rp(ReplayDataFile, THREAD);
1385 int exit_code = 0;
1386 if (rp.can_replay()) {
1387 rp.process(THREAD);
1388 } else {
1389 exit_code = 1;
1390 return exit_code;
1391 }
1392
1393 if (HAS_PENDING_EXCEPTION) {
1394 Handle throwable(THREAD, PENDING_EXCEPTION);
1395 CLEAR_PENDING_EXCEPTION;
1396 java_lang_Throwable::print_stack_trace(throwable, tty);
1397 tty->cr();
1398 exit_code = 2;
1399 }
1400
1401 if (rp.had_error()) {
1402 tty->print_cr("Failed on %s", rp.error_message());
1403 exit_code = 1;
1404 }
1405 return exit_code;
1406 }
1407
1408 void ciReplay::initialize(ciMethodData* m) {
1409 if (no_replay_state()) {
1410 return;
1411 }
1412
1413 ASSERT_IN_VM;
1414 ResourceMark rm;
1415
1416 Method* method = m->get_MethodData()->method();
1417 ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method);
1418 if (rec == nullptr) {
1419 // This indicates some mismatch with the original environment and
1420 // the replay environment though it's not always enough to
1421 // interfere with reproducing a bug
1422 tty->print_cr("Warning: requesting ciMethodData record for method with no data: ");
1423 method->print_name(tty);
1424 tty->cr();
1425 } else {
1426 m->_state = rec->_state;
1427 m->_invocation_counter = rec->_invocation_counter;
1428 if (rec->_data_length != 0) {
1429 assert(m->_data_size + m->_extra_data_size == rec->_data_length * (int)sizeof(rec->_data[0]) ||
1430 m->_data_size == rec->_data_length * (int)sizeof(rec->_data[0]), "must agree");
1431
1432 // Write the correct ciObjects back into the profile data
1433 ciEnv* env = ciEnv::current();
1434 for (int i = 0; i < rec->_classes_length; i++) {
1435 Klass *k = rec->_classes[i];
1436 // In case this class pointer is is tagged, preserve the tag bits
1437 intptr_t status = 0;
1438 if (k != nullptr) {
1439 status = ciTypeEntries::with_status(env->get_metadata(k)->as_klass(), rec->_data[rec->_classes_offsets[i]]);
1440 }
1441 rec->_data[rec->_classes_offsets[i]] = status;
1442 }
1443 for (int i = 0; i < rec->_methods_length; i++) {
1444 Method *m = rec->_methods[i];
1445 *(ciMetadata**)(rec->_data + rec->_methods_offsets[i]) =
1446 env->get_metadata(m);
1447 }
1448 // Copy the updated profile data into place as intptr_ts
1449 #ifdef _LP64
1450 Copy::conjoint_jlongs_atomic((jlong *)rec->_data, (jlong *)m->_data, rec->_data_length);
1451 #else
1452 Copy::conjoint_jints_atomic((jint *)rec->_data, (jint *)m->_data, rec->_data_length);
1453 #endif
1454 }
1455
1456 // copy in the original header
1457 Copy::conjoint_jbytes(rec->_orig_data, (char*)&m->_orig, rec->_orig_data_length);
1458 }
1459 }
1460
1461
1462 bool ciReplay::should_not_inline(ciMethod* method) {
1463 if (no_replay_state()) {
1464 return false;
1465 }
1466 VM_ENTRY_MARK;
1467 // ciMethod without a record shouldn't be inlined.
1468 return replay_state->find_ciMethodRecord(method->get_Method()) == nullptr;
1469 }
1470
1471 bool ciReplay::should_inline(void* data, ciMethod* method, int bci, int inline_depth, bool& should_delay) {
1472 if (data != nullptr) {
1473 GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data;
1474 VM_ENTRY_MARK;
1475 // Inline record are ordered by bci and depth.
1476 ciInlineRecord* record = CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth);
1477 if (record == nullptr) {
1478 return false;
1479 }
1480 should_delay = record->_inline_late;
1481 return true;
1482 } else if (replay_state != nullptr) {
1483 VM_ENTRY_MARK;
1484 // Inline record are ordered by bci and depth.
1485 ciInlineRecord* record = replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth);
1486 if (record == nullptr) {
1487 return false;
1488 }
1489 should_delay = record->_inline_late;
1490 return true;
1491 }
1492 return false;
1493 }
1494
1495 bool ciReplay::should_not_inline(void* data, ciMethod* method, int bci, int inline_depth) {
1496 if (data != nullptr) {
1497 GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data;
1498 VM_ENTRY_MARK;
1499 // Inline record are ordered by bci and depth.
1500 return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) == nullptr;
1501 } else if (replay_state != nullptr) {
1502 VM_ENTRY_MARK;
1503 // Inline record are ordered by bci and depth.
1504 return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) == nullptr;
1505 }
1506 return false;
1507 }
1508
1509 void ciReplay::initialize(ciMethod* m) {
1510 if (no_replay_state()) {
1511 return;
1512 }
1513
1514 ASSERT_IN_VM;
1515 ResourceMark rm;
1516
1517 Method* method = m->get_Method();
1518 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
1519 if (rec == nullptr) {
1520 // This indicates some mismatch with the original environment and
1521 // the replay environment though it's not always enough to
1522 // interfere with reproducing a bug
1523 tty->print_cr("Warning: requesting ciMethod record for method with no data: ");
1524 method->print_name(tty);
1525 tty->cr();
1526 } else {
1527 EXCEPTION_CONTEXT;
1528 // m->_instructions_size = rec->_instructions_size;
1529 m->_inline_instructions_size = -1;
1530 m->_interpreter_invocation_count = rec->_interpreter_invocation_count;
1531 m->_interpreter_throwout_count = rec->_interpreter_throwout_count;
1532 MethodCounters* mcs = method->get_method_counters(CHECK_AND_CLEAR);
1533 guarantee(mcs != nullptr, "method counters allocation failed");
1534 mcs->invocation_counter()->_counter = rec->_invocation_counter;
1535 mcs->backedge_counter()->_counter = rec->_backedge_counter;
1536 }
1537 }
1538
1539 void ciReplay::initialize(ciInstanceKlass* ci_ik, InstanceKlass* ik) {
1540 assert(!no_replay_state(), "must have replay state");
1541
1542 ASSERT_IN_VM;
1543 ciInstanceKlassRecord* rec = replay_state->find_ciInstanceKlass(ik);
1544 assert(rec != nullptr, "ciInstanceKlass must be whitelisted");
1545 ci_ik->_java_mirror = CURRENT_ENV->get_instance(JNIHandles::resolve(rec->_java_mirror));
1546 }
1547
1548 bool ciReplay::is_loaded(Method* method) {
1549 if (no_replay_state()) {
1550 return true;
1551 }
1552
1553 ASSERT_IN_VM;
1554 ResourceMark rm;
1555
1556 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
1557 return rec != nullptr;
1558 }
1559
1560 bool ciReplay::is_klass_unresolved(const InstanceKlass* klass) {
1561 if (no_replay_state()) {
1562 return false;
1563 }
1564
1565 // Check if klass is found on whitelist.
1566 ciInstanceKlassRecord* rec = replay_state->find_ciInstanceKlass(klass);
1567 return rec == nullptr;
1568 }
1569
1570 oop ciReplay::obj_field(oop obj, Symbol* name) {
1571 InstanceKlass* ik = InstanceKlass::cast(obj->klass());
1572
1573 do {
1574 if (!ik->has_nonstatic_fields()) {
1575 ik = ik->java_super();
1576 continue;
1577 }
1578
1579 for (JavaFieldStream fs(ik); !fs.done(); fs.next()) {
1580 if (fs.access_flags().is_static()) {
1581 continue;
1582 }
1583 if (fs.name() == name) {
1584 int offset = fs.offset();
1585 #ifdef ASSERT
1586 fieldDescriptor fd = fs.field_descriptor();
1587 assert(fd.offset() == ik->field_offset(fd.index()), "!");
1588 #endif
1589 oop f = obj->obj_field(offset);
1590 return f;
1591 }
1592 }
1593
1594 ik = ik->java_super();
1595 } while (ik != nullptr);
1596 return nullptr;
1597 }
1598
1599 oop ciReplay::obj_field(oop obj, const char *name) {
1600 Symbol* fname = SymbolTable::probe(name, (int)strlen(name));
1601 if (fname == nullptr) {
1602 return nullptr;
1603 }
1604 return obj_field(obj, fname);
1605 }