7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #include "precompiled.hpp"
25 #include "ci/ciMethodData.hpp"
26 #include "ci/ciReplay.hpp"
27 #include "ci/ciUtilities.hpp"
28 #include "compiler/compileBroker.hpp"
29 #include "memory/allocation.inline.hpp"
30 #include "memory/oopFactory.hpp"
31 #include "memory/resourceArea.hpp"
32 #include "utilities/copy.hpp"
33 #include "utilities/macros.hpp"
34
35 #ifndef PRODUCT
36
37 // ciReplay
38
39 typedef struct _ciMethodDataRecord {
40 const char* klass;
41 const char* method;
42 const char* signature;
43 int state;
44 int current_mileage;
45 intptr_t* data;
46 int data_length;
47 char* orig_data;
48 int orig_data_length;
49 int oops_length;
50 jobject* oops_handles;
51 int* oops_offsets;
52 } ciMethodDataRecord;
53
54 typedef struct _ciMethodRecord {
55 const char* klass;
56 const char* method;
57 const char* signature;
58 int instructions_size;
59 int interpreter_invocation_count;
60 int interpreter_throwout_count;
61 int invocation_counter;
62 int backedge_counter;
63 } ciMethodRecord;
64
65 class CompileReplay;
66 static CompileReplay* replay_state;
67
68 class CompileReplay : public StackObj {
69 private:
70 FILE* stream;
71 Thread* thread;
72 Handle protection_domain;
73 Handle loader;
74
75 GrowableArray<ciMethodRecord*> ci_method_records;
76 GrowableArray<ciMethodDataRecord*> ci_method_data_records;
77
78 const char* _error_message;
79
80 char* bufptr;
81 char* buffer;
82 int buffer_length;
83 int buffer_end;
84 int line_no;
85
86 public:
87 CompileReplay(const char* filename, TRAPS) {
88 thread = THREAD;
89 loader = Handle(thread, SystemDictionary::java_system_loader());
90 stream = fopen(filename, "rt");
91 if (stream == NULL) {
92 fprintf(stderr, "ERROR: Can't open replay file %s\n", filename);
93 }
94 buffer_length = 32;
95 buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
96 _error_message = NULL;
256 result[i] = val;
257 }
258 return result;
259 }
260
261 // Parse a possibly quoted version of a symbol into a symbolOop
262 Symbol* parse_symbol(TRAPS) {
263 const char* str = parse_escaped_string();
264 if (str != NULL) {
265 Symbol* sym = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
266 return sym;
267 }
268 return NULL;
269 }
270
271 // Parse a valid klass name and look it up
272 Klass* parse_klass(TRAPS) {
273 const char* str = parse_escaped_string();
274 Symbol* klass_name = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
275 if (klass_name != NULL) {
276 Klass* k = SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, THREAD);
277 if (HAS_PENDING_EXCEPTION) {
278 oop throwable = PENDING_EXCEPTION;
279 java_lang_Throwable::print(throwable, tty);
280 tty->cr();
281 report_error(str);
282 return NULL;
283 }
284 return k;
285 }
286 return NULL;
287 }
288
289 // Lookup a klass
290 Klass* resolve_klass(const char* klass, TRAPS) {
291 Symbol* klass_name = SymbolTable::lookup(klass, (int)strlen(klass), CHECK_NULL);
292 return SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, CHECK_NULL);
293 }
294
295 // Parse the standard tuple of <klass> <name> <signature>
296 Method* parse_method(TRAPS) {
297 InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL);
298 Symbol* method_name = parse_symbol(CHECK_NULL);
299 Symbol* method_signature = parse_symbol(CHECK_NULL);
300 Method* m = k->find_method(method_name, method_signature);
301 if (m == NULL) {
302 report_error("Can't find method");
303 }
304 return m;
305 }
306
307 // Process each line of the replay file executing each command until
308 // the file ends.
309 void process(TRAPS) {
310 line_no = 1;
311 int pos = 0;
312 int c = getc(stream);
313 while(c != EOF) {
314 if (pos + 1 >= buffer_length) {
315 int newl = buffer_length * 2;
316 char* newb = NEW_RESOURCE_ARRAY(char, newl);
317 memcpy(newb, buffer, pos);
318 buffer = newb;
319 buffer_length = newl;
320 }
321 if (c == '\n') {
322 // null terminate it, reset the pointer and process the line
323 buffer[pos] = '\0';
324 buffer_end = pos++;
325 bufptr = buffer;
326 process_command(CHECK);
327 if (had_error()) {
328 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
329 tty->print_cr("%s", buffer);
379 } else if (!TieredCompilation && (comp_level != CompLevel_highest_tier)) {
380 msg = NEW_RESOURCE_ARRAY(char, msg_len);
381 switch (comp_level) {
382 case CompLevel_simple:
383 jio_snprintf(msg, msg_len, "compilation level %d requires Client VM or TieredCompilation", comp_level);
384 break;
385 case CompLevel_full_optimization:
386 jio_snprintf(msg, msg_len, "compilation level %d requires Server VM", comp_level);
387 break;
388 default:
389 jio_snprintf(msg, msg_len, "compilation level %d requires TieredCompilation", comp_level);
390 }
391 }
392 if (msg != NULL) {
393 report_error(msg);
394 return false;
395 }
396 return true;
397 }
398
399 // compile <klass> <name> <signature> <entry_bci> <comp_level>
400 void process_compile(TRAPS) {
401 Method* method = parse_method(CHECK);
402 if (had_error()) return;
403 int entry_bci = parse_int("entry_bci");
404 const char* comp_level_label = "comp_level";
405 int comp_level = parse_int(comp_level_label);
406 // old version w/o comp_level
407 if (had_error() && (error_message() == comp_level_label)) {
408 comp_level = CompLevel_full_optimization;
409 }
410 if (!is_valid_comp_level(comp_level)) {
411 return;
412 }
413 Klass* k = method->method_holder();
414 ((InstanceKlass*)k)->initialize(THREAD);
415 if (HAS_PENDING_EXCEPTION) {
416 oop throwable = PENDING_EXCEPTION;
417 java_lang_Throwable::print(throwable, tty);
418 tty->cr();
419 if (ReplayIgnoreInitErrors) {
420 CLEAR_PENDING_EXCEPTION;
421 ((InstanceKlass*)k)->set_init_state(InstanceKlass::fully_initialized);
422 } else {
423 return;
424 }
425 }
426 // Make sure the existence of a prior compile doesn't stop this one
427 nmethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, comp_level, true) : method->code();
428 if (nm != NULL) {
429 nm->make_not_entrant();
430 }
431 replay_state = this;
432 CompileBroker::compile_method(method, entry_bci, comp_level,
553 tty->print_cr("Resolving klass %s at %d", cp->unresolved_klass_at(i)->as_utf8(), i);
554 Klass* k = cp->klass_at(i, CHECK);
555 }
556 break;
557 }
558 case JVM_CONSTANT_Long:
559 case JVM_CONSTANT_Double:
560 parsed_two_word = i + 1;
561
562 case JVM_CONSTANT_ClassIndex:
563 case JVM_CONSTANT_StringIndex:
564 case JVM_CONSTANT_String:
565 case JVM_CONSTANT_UnresolvedClassInError:
566 case JVM_CONSTANT_Fieldref:
567 case JVM_CONSTANT_Methodref:
568 case JVM_CONSTANT_InterfaceMethodref:
569 case JVM_CONSTANT_NameAndType:
570 case JVM_CONSTANT_Utf8:
571 case JVM_CONSTANT_Integer:
572 case JVM_CONSTANT_Float:
573 if (tag != cp->tag_at(i).value()) {
574 report_error("tag mismatch: wrong class files?");
575 return;
576 }
577 break;
578
579 case JVM_CONSTANT_Class:
580 if (tag == JVM_CONSTANT_Class) {
581 } else if (tag == JVM_CONSTANT_UnresolvedClass) {
582 tty->print_cr("Warning: entry was unresolved in the replay data");
583 } else {
584 report_error("Unexpected tag");
585 return;
586 }
587 break;
588
589 case 0:
590 if (parsed_two_word == i) continue;
591
592 default:
761 ci_method_data_records.append(rec);
762 return rec;
763 }
764
765 // Lookup data for a ciMethodData
766 ciMethodDataRecord* find_ciMethodDataRecord(Method* method) {
767 const char* klass_name = method->method_holder()->name()->as_utf8();
768 const char* method_name = method->name()->as_utf8();
769 const char* signature = method->signature()->as_utf8();
770 for (int i = 0; i < ci_method_data_records.length(); i++) {
771 ciMethodDataRecord* rec = ci_method_data_records.at(i);
772 if (strcmp(rec->klass, klass_name) == 0 &&
773 strcmp(rec->method, method_name) == 0 &&
774 strcmp(rec->signature, signature) == 0) {
775 return rec;
776 }
777 }
778 return NULL;
779 }
780
781 const char* error_message() {
782 return _error_message;
783 }
784
785 void reset() {
786 _error_message = NULL;
787 ci_method_records.clear();
788 ci_method_data_records.clear();
789 }
790
791 // Take an ascii string contain \u#### escapes and convert it to utf8
792 // in place.
793 static void unescape_string(char* value) {
794 char* from = value;
795 char* to = value;
796 while (*from != '\0') {
797 if (*from != '\\') {
798 *from++ = *to++;
799 } else {
800 switch (from[1]) {
828 case 'n': *to++ = '\n'; from += 2; break;
829 case 'r': *to++ = '\r'; from += 2; break;
830 case 'f': *to++ = '\f'; from += 2; break;
831 default:
832 ShouldNotReachHere();
833 }
834 }
835 }
836 *from = *to;
837 }
838 };
839
840 void ciReplay::replay(TRAPS) {
841 int exit_code = replay_impl(THREAD);
842
843 Threads::destroy_vm();
844
845 vm_exit(exit_code);
846 }
847
848 int ciReplay::replay_impl(TRAPS) {
849 HandleMark hm;
850 ResourceMark rm;
851 // Make sure we don't run with background compilation
852 BackgroundCompilation = false;
853
854 if (ReplaySuppressInitializers > 2) {
855 // ReplaySuppressInitializers > 2 means that we want to allow
856 // normal VM bootstrap but once we get into the replay itself
857 // don't allow any intializers to be run.
858 ReplaySuppressInitializers = 1;
859 }
860
861 if (FLAG_IS_DEFAULT(ReplayDataFile)) {
862 tty->print_cr("ERROR: no compiler replay data file specified (use -XX:ReplayDataFile=replay_pid12345.txt).");
863 return 1;
864 }
865
866 // Load and parse the replay data
867 CompileReplay rp(ReplayDataFile, THREAD);
868 int exit_code = 0;
869 if (rp.can_replay()) {
870 rp.process(THREAD);
871 } else {
872 exit_code = 1;
873 return exit_code;
874 }
875
876 if (HAS_PENDING_EXCEPTION) {
877 oop throwable = PENDING_EXCEPTION;
878 CLEAR_PENDING_EXCEPTION;
879 java_lang_Throwable::print(throwable, tty);
880 tty->cr();
881 java_lang_Throwable::print_stack_trace(throwable, tty);
882 tty->cr();
883 exit_code = 2;
884 }
885
886 if (rp.had_error()) {
887 tty->print_cr("Failed on %s", rp.error_message());
888 exit_code = 1;
889 }
890 return exit_code;
891 }
892
893
894 void ciReplay::initialize(ciMethodData* m) {
895 if (replay_state == NULL) {
896 return;
897 }
898
899 ASSERT_IN_VM;
900 ResourceMark rm;
901
902 Method* method = m->get_MethodData()->method();
903 ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method);
904 if (rec == NULL) {
905 // This indicates some mismatch with the original environment and
906 // the replay environment though it's not always enough to
907 // interfere with reproducing a bug
908 tty->print_cr("Warning: requesting ciMethodData record for method with no data: ");
909 method->print_name(tty);
910 tty->cr();
911 } else {
912 m->_state = rec->state;
913 m->_current_mileage = rec->current_mileage;
922 env->get_metadata((*h)());
923 }
924 // Copy the updated profile data into place as intptr_ts
925 #ifdef _LP64
926 Copy::conjoint_jlongs_atomic((jlong *)rec->data, (jlong *)m->_data, rec->data_length);
927 #else
928 Copy::conjoint_jints_atomic((jint *)rec->data, (jint *)m->_data, rec->data_length);
929 #endif
930 }
931
932 // copy in the original header
933 Copy::conjoint_jbytes(rec->orig_data, (char*)&m->_orig, rec->orig_data_length);
934 }
935 }
936
937
938 bool ciReplay::should_not_inline(ciMethod* method) {
939 if (replay_state == NULL) {
940 return false;
941 }
942
943 VM_ENTRY_MARK;
944 // ciMethod without a record shouldn't be inlined.
945 return replay_state->find_ciMethodRecord(method->get_Method()) == NULL;
946 }
947
948
949 void ciReplay::initialize(ciMethod* m) {
950 if (replay_state == NULL) {
951 return;
952 }
953
954 ASSERT_IN_VM;
955 ResourceMark rm;
956
957 Method* method = m->get_Method();
958 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
959 if (rec == NULL) {
960 // This indicates some mismatch with the original environment and
961 // the replay environment though it's not always enough to
962 // interfere with reproducing a bug
963 tty->print_cr("Warning: requesting ciMethod record for method with no data: ");
964 method->print_name(tty);
965 tty->cr();
966 } else {
967 EXCEPTION_CONTEXT;
|
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #include "precompiled.hpp"
25 #include "ci/ciMethodData.hpp"
26 #include "ci/ciReplay.hpp"
27 #include "ci/ciSymbol.hpp"
28 #include "ci/ciKlass.hpp"
29 #include "ci/ciUtilities.hpp"
30 #include "compiler/compileBroker.hpp"
31 #include "memory/allocation.inline.hpp"
32 #include "memory/oopFactory.hpp"
33 #include "memory/resourceArea.hpp"
34 #include "utilities/copy.hpp"
35 #include "utilities/macros.hpp"
36
37 #ifndef PRODUCT
38
39 // ciReplay
40
41 typedef struct _ciMethodDataRecord {
42 const char* klass;
43 const char* method;
44 const char* signature;
45 int state;
46 int current_mileage;
47 intptr_t* data;
48 int data_length;
49 char* orig_data;
50 int orig_data_length;
51 int oops_length;
52 jobject* oops_handles;
53 int* oops_offsets;
54 } ciMethodDataRecord;
55
56 typedef struct _ciMethodRecord {
57 const char* klass;
58 const char* method;
59 const char* signature;
60 int instructions_size;
61 int interpreter_invocation_count;
62 int interpreter_throwout_count;
63 int invocation_counter;
64 int backedge_counter;
65 } ciMethodRecord;
66
67 typedef struct _ciInlineRecord {
68 const char* klass;
69 const char* method;
70 const char* signature;
71 int inline_depth;
72 int bci;
73 } ciInlineRecord;
74
75 class CompileReplay;
76 static CompileReplay* replay_state;
77
78 class CompileReplay : public StackObj {
79 private:
80 FILE* stream;
81 Thread* thread;
82 Handle protection_domain;
83 Handle loader;
84
85 GrowableArray<ciMethodRecord*> ci_method_records;
86 GrowableArray<ciMethodDataRecord*> ci_method_data_records;
87 // Use pointer because we may need to retirn inline records
88 // without destroying.
89 GrowableArray<ciInlineRecord*>* ci_inline_records;
90
91 const char* _error_message;
92
93 char* bufptr;
94 char* buffer;
95 int buffer_length;
96 int buffer_end;
97 int line_no;
98
99 public:
100 CompileReplay(const char* filename, TRAPS) {
101 thread = THREAD;
102 loader = Handle(thread, SystemDictionary::java_system_loader());
103 stream = fopen(filename, "rt");
104 if (stream == NULL) {
105 fprintf(stderr, "ERROR: Can't open replay file %s\n", filename);
106 }
107 buffer_length = 32;
108 buffer = NEW_RESOURCE_ARRAY(char, buffer_length);
109 _error_message = NULL;
269 result[i] = val;
270 }
271 return result;
272 }
273
274 // Parse a possibly quoted version of a symbol into a symbolOop
275 Symbol* parse_symbol(TRAPS) {
276 const char* str = parse_escaped_string();
277 if (str != NULL) {
278 Symbol* sym = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
279 return sym;
280 }
281 return NULL;
282 }
283
284 // Parse a valid klass name and look it up
285 Klass* parse_klass(TRAPS) {
286 const char* str = parse_escaped_string();
287 Symbol* klass_name = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
288 if (klass_name != NULL) {
289 Klass* k = NULL;
290 if (_iklass != NULL) {
291 k = (Klass*)_iklass->find_klass(ciSymbol::make(klass_name->as_C_string()))->constant_encoding();
292 } else {
293 k = SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, THREAD);
294 }
295 if (HAS_PENDING_EXCEPTION) {
296 oop throwable = PENDING_EXCEPTION;
297 java_lang_Throwable::print(throwable, tty);
298 tty->cr();
299 report_error(str);
300 return NULL;
301 }
302 return k;
303 }
304 return NULL;
305 }
306
307 // Lookup a klass
308 Klass* resolve_klass(const char* klass, TRAPS) {
309 Symbol* klass_name = SymbolTable::lookup(klass, (int)strlen(klass), CHECK_NULL);
310 return SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, CHECK_NULL);
311 }
312
313 // Parse the standard tuple of <klass> <name> <signature>
314 Method* parse_method(TRAPS) {
315 InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL);
316 Symbol* method_name = parse_symbol(CHECK_NULL);
317 Symbol* method_signature = parse_symbol(CHECK_NULL);
318 Method* m = k->find_method(method_name, method_signature);
319 if (m == NULL) {
320 report_error("Can't find method");
321 }
322 return m;
323 }
324
325 // Process each line of the replay file executing each command until
326 // the file ends.
327 void process(TRAPS) {
328 _imethod = NULL;
329 _iklass = NULL;
330 _entry_bci = 0;
331 _comp_level = 0;
332
333 line_no = 1;
334 int pos = 0;
335 int c = getc(stream);
336 while(c != EOF) {
337 if (pos + 1 >= buffer_length) {
338 int newl = buffer_length * 2;
339 char* newb = NEW_RESOURCE_ARRAY(char, newl);
340 memcpy(newb, buffer, pos);
341 buffer = newb;
342 buffer_length = newl;
343 }
344 if (c == '\n') {
345 // null terminate it, reset the pointer and process the line
346 buffer[pos] = '\0';
347 buffer_end = pos++;
348 bufptr = buffer;
349 process_command(CHECK);
350 if (had_error()) {
351 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
352 tty->print_cr("%s", buffer);
402 } else if (!TieredCompilation && (comp_level != CompLevel_highest_tier)) {
403 msg = NEW_RESOURCE_ARRAY(char, msg_len);
404 switch (comp_level) {
405 case CompLevel_simple:
406 jio_snprintf(msg, msg_len, "compilation level %d requires Client VM or TieredCompilation", comp_level);
407 break;
408 case CompLevel_full_optimization:
409 jio_snprintf(msg, msg_len, "compilation level %d requires Server VM", comp_level);
410 break;
411 default:
412 jio_snprintf(msg, msg_len, "compilation level %d requires TieredCompilation", comp_level);
413 }
414 }
415 if (msg != NULL) {
416 report_error(msg);
417 return false;
418 }
419 return true;
420 }
421
422 ciKlass* _iklass;
423 Method* _imethod;
424 int _entry_bci;
425 int _comp_level;
426
427 // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> <depth> <bci> <klass> <name> <signature> ...
428 void* process_inline(ciMethod* imethod, Method* m, int entry_bci, int comp_level, TRAPS) {
429 _imethod = m;
430 _iklass = imethod->holder();
431 _entry_bci = entry_bci;
432 _comp_level = comp_level;
433 line_no = 1;
434 int pos = 0;
435 int c = getc(stream);
436 while(c != EOF) {
437 if (pos + 1 >= buffer_length) {
438 int newl = buffer_length * 2;
439 char* newb = NEW_RESOURCE_ARRAY(char, newl);
440 memcpy(newb, buffer, pos);
441 buffer = newb;
442 buffer_length = newl;
443 }
444 if (c == '\n') {
445 // null terminate it, reset the pointer and process the line
446 buffer[pos] = '\0';
447 buffer_end = pos++;
448 bufptr = buffer;
449 {
450 char* cmd = parse_string();
451 if (cmd == NULL || strcmp("compile", cmd) != 0) {
452 return NULL;
453 }
454 process_compile(CHECK_NULL);
455 if (ci_inline_records != NULL && ci_inline_records->length() > 0) {
456 return ci_inline_records;
457 }
458 }
459 if (had_error()) {
460 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
461 tty->print_cr("%s", buffer);
462 return NULL;
463 }
464 pos = 0;
465 buffer_end = 0;
466 line_no++;
467 } else if (c == '\r') {
468 // skip LF
469 } else {
470 buffer[pos++] = c;
471 }
472 c = getc(stream);
473 }
474 return NULL;
475 }
476
477 // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> <depth> <bci> <klass> <name> <signature> ...
478 void process_compile(TRAPS) {
479 Method* method = parse_method(CHECK);
480 if (had_error()) return;
481 int entry_bci = parse_int("entry_bci");
482 const char* comp_level_label = "comp_level";
483 int comp_level = parse_int(comp_level_label);
484 // old version w/o comp_level
485 if (had_error() && (error_message() == comp_level_label)) {
486 comp_level = CompLevel_full_optimization;
487 }
488 if (!is_valid_comp_level(comp_level)) {
489 return;
490 }
491 if (_imethod != NULL) {
492 // Replay Inlinig
493 if (entry_bci != _entry_bci || comp_level != _comp_level) {
494 return;
495 }
496 const char* iklass_name = _imethod->method_holder()->name()->as_utf8();
497 const char* imethod_name = _imethod->name()->as_utf8();
498 const char* isignature = _imethod->signature()->as_utf8();
499 const char* klass_name = method->method_holder()->name()->as_utf8();
500 const char* method_name = method->name()->as_utf8();
501 const char* signature = method->signature()->as_utf8();
502 if (strcmp(iklass_name, klass_name) != 0 ||
503 strcmp(imethod_name, method_name) != 0 ||
504 strcmp(isignature, signature) != 0) {
505 return;
506 }
507 }
508 int inline_count = 0;
509 if (parse_tag_and_count("inline", inline_count)) {
510 // Record inlining data
511 ci_inline_records = new GrowableArray<ciInlineRecord*>();
512 for (int i = 0; i < inline_count; i++) {
513 int depth = parse_int("inline_depth");
514 int bci = parse_int("inline_bci");
515 if (had_error()) {
516 break;
517 }
518 Method* inl_method = parse_method(CHECK);
519 if (had_error()) {
520 break;
521 }
522 new_ciInlineRecord(inl_method, bci, depth);
523 }
524 }
525 if (_imethod != NULL) {
526 return; // Replay Inlining
527 }
528 Klass* k = method->method_holder();
529 ((InstanceKlass*)k)->initialize(THREAD);
530 if (HAS_PENDING_EXCEPTION) {
531 oop throwable = PENDING_EXCEPTION;
532 java_lang_Throwable::print(throwable, tty);
533 tty->cr();
534 if (ReplayIgnoreInitErrors) {
535 CLEAR_PENDING_EXCEPTION;
536 ((InstanceKlass*)k)->set_init_state(InstanceKlass::fully_initialized);
537 } else {
538 return;
539 }
540 }
541 // Make sure the existence of a prior compile doesn't stop this one
542 nmethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, comp_level, true) : method->code();
543 if (nm != NULL) {
544 nm->make_not_entrant();
545 }
546 replay_state = this;
547 CompileBroker::compile_method(method, entry_bci, comp_level,
668 tty->print_cr("Resolving klass %s at %d", cp->unresolved_klass_at(i)->as_utf8(), i);
669 Klass* k = cp->klass_at(i, CHECK);
670 }
671 break;
672 }
673 case JVM_CONSTANT_Long:
674 case JVM_CONSTANT_Double:
675 parsed_two_word = i + 1;
676
677 case JVM_CONSTANT_ClassIndex:
678 case JVM_CONSTANT_StringIndex:
679 case JVM_CONSTANT_String:
680 case JVM_CONSTANT_UnresolvedClassInError:
681 case JVM_CONSTANT_Fieldref:
682 case JVM_CONSTANT_Methodref:
683 case JVM_CONSTANT_InterfaceMethodref:
684 case JVM_CONSTANT_NameAndType:
685 case JVM_CONSTANT_Utf8:
686 case JVM_CONSTANT_Integer:
687 case JVM_CONSTANT_Float:
688 case JVM_CONSTANT_MethodHandle:
689 case JVM_CONSTANT_MethodType:
690 case JVM_CONSTANT_InvokeDynamic:
691 if (tag != cp->tag_at(i).value()) {
692 report_error("tag mismatch: wrong class files?");
693 return;
694 }
695 break;
696
697 case JVM_CONSTANT_Class:
698 if (tag == JVM_CONSTANT_Class) {
699 } else if (tag == JVM_CONSTANT_UnresolvedClass) {
700 tty->print_cr("Warning: entry was unresolved in the replay data");
701 } else {
702 report_error("Unexpected tag");
703 return;
704 }
705 break;
706
707 case 0:
708 if (parsed_two_word == i) continue;
709
710 default:
879 ci_method_data_records.append(rec);
880 return rec;
881 }
882
883 // Lookup data for a ciMethodData
884 ciMethodDataRecord* find_ciMethodDataRecord(Method* method) {
885 const char* klass_name = method->method_holder()->name()->as_utf8();
886 const char* method_name = method->name()->as_utf8();
887 const char* signature = method->signature()->as_utf8();
888 for (int i = 0; i < ci_method_data_records.length(); i++) {
889 ciMethodDataRecord* rec = ci_method_data_records.at(i);
890 if (strcmp(rec->klass, klass_name) == 0 &&
891 strcmp(rec->method, method_name) == 0 &&
892 strcmp(rec->signature, signature) == 0) {
893 return rec;
894 }
895 }
896 return NULL;
897 }
898
899 // Create and initialize a record for a ciInlineRecord
900 ciInlineRecord* new_ciInlineRecord(Method* method, int bci, int depth) {
901 ciInlineRecord* rec = NEW_RESOURCE_OBJ(ciInlineRecord);
902 rec->klass = method->method_holder()->name()->as_utf8();
903 rec->method = method->name()->as_utf8();
904 rec->signature = method->signature()->as_utf8();
905 rec->bci = bci;
906 rec->inline_depth = depth;
907 ci_inline_records->append(rec);
908 return rec;
909 }
910
911 // Lookup inlining data for a ciMethod
912 ciInlineRecord* find_ciInlineRecord(Method* method, int bci, int inline_depth) {
913 if (ci_inline_records != NULL) {
914 const char* klass_name = method->method_holder()->name()->as_utf8();
915 const char* method_name = method->name()->as_utf8();
916 const char* signature = method->signature()->as_utf8();
917 for (int i = 0; i < ci_inline_records->length(); i++) {
918 ciInlineRecord* rec = ci_inline_records->at(i);
919 if ((rec->bci == bci) &&
920 (rec->inline_depth == inline_depth) &&
921 (strcmp(rec->klass, klass_name) == 0) &&
922 (strcmp(rec->method, method_name) == 0) &&
923 (strcmp(rec->signature, signature) == 0)) {
924 return rec;
925 }
926 }
927 }
928 return NULL;
929 }
930
931 static ciInlineRecord* find_ciInlineRecord(GrowableArray<ciInlineRecord*>* records,
932 Method* method, int bci, int inline_depth) {
933 if (records != NULL) {
934 const char* klass_name = method->method_holder()->name()->as_utf8();
935 const char* method_name = method->name()->as_utf8();
936 const char* signature = method->signature()->as_utf8();
937 for (int i = 0; i < records->length(); i++) {
938 ciInlineRecord* rec = records->at(i);
939 if ((rec->bci == bci) &&
940 (rec->inline_depth == inline_depth) &&
941 (strcmp(rec->klass, klass_name) == 0) &&
942 (strcmp(rec->method, method_name) == 0) &&
943 (strcmp(rec->signature, signature) == 0)) {
944 return rec;
945 }
946 }
947 }
948 return NULL;
949 }
950
951 const char* error_message() {
952 return _error_message;
953 }
954
955 void reset() {
956 _error_message = NULL;
957 ci_method_records.clear();
958 ci_method_data_records.clear();
959 }
960
961 // Take an ascii string contain \u#### escapes and convert it to utf8
962 // in place.
963 static void unescape_string(char* value) {
964 char* from = value;
965 char* to = value;
966 while (*from != '\0') {
967 if (*from != '\\') {
968 *from++ = *to++;
969 } else {
970 switch (from[1]) {
998 case 'n': *to++ = '\n'; from += 2; break;
999 case 'r': *to++ = '\r'; from += 2; break;
1000 case 'f': *to++ = '\f'; from += 2; break;
1001 default:
1002 ShouldNotReachHere();
1003 }
1004 }
1005 }
1006 *from = *to;
1007 }
1008 };
1009
1010 void ciReplay::replay(TRAPS) {
1011 int exit_code = replay_impl(THREAD);
1012
1013 Threads::destroy_vm();
1014
1015 vm_exit(exit_code);
1016 }
1017
1018 void* ciReplay::load_inline_data(ciMethod* method, int entry_bci, int comp_level) {
1019 if (FLAG_IS_DEFAULT(InlineDataFile)) {
1020 tty->print_cr("ERROR: no inline replay data file specified (use -XX:InlineDataFile=inline_pid12345.txt).");
1021 return NULL;
1022 }
1023
1024 VM_ENTRY_MARK;
1025 // Load and parse the replay data
1026 CompileReplay rp(InlineDataFile, THREAD);
1027 if (!rp.can_replay()) {
1028 tty->print_cr("ciReplay: !rp.can_replay()");
1029 return NULL;
1030 }
1031 void* data = rp.process_inline(method, method->get_Method(), entry_bci, comp_level, THREAD);
1032 if (HAS_PENDING_EXCEPTION) {
1033 oop throwable = PENDING_EXCEPTION;
1034 CLEAR_PENDING_EXCEPTION;
1035 java_lang_Throwable::print(throwable, tty);
1036 tty->cr();
1037 java_lang_Throwable::print_stack_trace(throwable, tty);
1038 tty->cr();
1039 return NULL;
1040 }
1041
1042 if (rp.had_error()) {
1043 tty->print_cr("ciReplay: Failed on %s", rp.error_message());
1044 return NULL;
1045 }
1046 return data;
1047 }
1048
1049 int ciReplay::replay_impl(TRAPS) {
1050 HandleMark hm;
1051 ResourceMark rm;
1052 // Make sure we don't run with background compilation
1053 // BackgroundCompilation = false;
1054
1055 if (ReplaySuppressInitializers > 2) {
1056 // ReplaySuppressInitializers > 2 means that we want to allow
1057 // normal VM bootstrap but once we get into the replay itself
1058 // don't allow any intializers to be run.
1059 ReplaySuppressInitializers = 1;
1060 }
1061
1062 if (FLAG_IS_DEFAULT(ReplayDataFile)) {
1063 tty->print_cr("ERROR: no compiler replay data file specified (use -XX:ReplayDataFile=replay_pid12345.txt).");
1064 return 1;
1065 }
1066
1067 // Load and parse the replay data
1068 CompileReplay rp(ReplayDataFile, THREAD);
1069 int exit_code = 0;
1070 if (rp.can_replay()) {
1071 rp.process(THREAD);
1072 } else {
1073 exit_code = 1;
1074 return exit_code;
1075 }
1076
1077 if (HAS_PENDING_EXCEPTION) {
1078 oop throwable = PENDING_EXCEPTION;
1079 CLEAR_PENDING_EXCEPTION;
1080 java_lang_Throwable::print(throwable, tty);
1081 tty->cr();
1082 java_lang_Throwable::print_stack_trace(throwable, tty);
1083 tty->cr();
1084 exit_code = 2;
1085 }
1086
1087 if (rp.had_error()) {
1088 tty->print_cr("Failed on %s", rp.error_message());
1089 exit_code = 1;
1090 }
1091 return exit_code;
1092 }
1093
1094 void ciReplay::initialize(ciMethodData* m) {
1095 if (replay_state == NULL) {
1096 return;
1097 }
1098
1099 ASSERT_IN_VM;
1100 ResourceMark rm;
1101
1102 Method* method = m->get_MethodData()->method();
1103 ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method);
1104 if (rec == NULL) {
1105 // This indicates some mismatch with the original environment and
1106 // the replay environment though it's not always enough to
1107 // interfere with reproducing a bug
1108 tty->print_cr("Warning: requesting ciMethodData record for method with no data: ");
1109 method->print_name(tty);
1110 tty->cr();
1111 } else {
1112 m->_state = rec->state;
1113 m->_current_mileage = rec->current_mileage;
1122 env->get_metadata((*h)());
1123 }
1124 // Copy the updated profile data into place as intptr_ts
1125 #ifdef _LP64
1126 Copy::conjoint_jlongs_atomic((jlong *)rec->data, (jlong *)m->_data, rec->data_length);
1127 #else
1128 Copy::conjoint_jints_atomic((jint *)rec->data, (jint *)m->_data, rec->data_length);
1129 #endif
1130 }
1131
1132 // copy in the original header
1133 Copy::conjoint_jbytes(rec->orig_data, (char*)&m->_orig, rec->orig_data_length);
1134 }
1135 }
1136
1137
1138 bool ciReplay::should_not_inline(ciMethod* method) {
1139 if (replay_state == NULL) {
1140 return false;
1141 }
1142 VM_ENTRY_MARK;
1143 // ciMethod without a record shouldn't be inlined.
1144 return replay_state->find_ciMethodRecord(method->get_Method()) == NULL;
1145 }
1146
1147 bool ciReplay::should_inline(void* data, ciMethod* method, int bci, int inline_depth) {
1148 if (data != NULL) {
1149 GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data;
1150 VM_ENTRY_MARK;
1151 // Inline record are ordered by bci and depth.
1152 return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) != NULL;
1153 } else if (replay_state != NULL) {
1154 VM_ENTRY_MARK;
1155 // Inline record are ordered by bci and depth.
1156 return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) != NULL;
1157 }
1158 return false;
1159 }
1160
1161 bool ciReplay::should_not_inline(void* data, ciMethod* method, int bci, int inline_depth) {
1162 if (data != NULL) {
1163 GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data;
1164 VM_ENTRY_MARK;
1165 // Inline record are ordered by bci and depth.
1166 return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) == NULL;
1167 } else if (replay_state != NULL) {
1168 VM_ENTRY_MARK;
1169 // Inline record are ordered by bci and depth.
1170 return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) == NULL;
1171 }
1172 return false;
1173 }
1174
1175 void ciReplay::initialize(ciMethod* m) {
1176 if (replay_state == NULL) {
1177 return;
1178 }
1179
1180 ASSERT_IN_VM;
1181 ResourceMark rm;
1182
1183 Method* method = m->get_Method();
1184 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
1185 if (rec == NULL) {
1186 // This indicates some mismatch with the original environment and
1187 // the replay environment though it's not always enough to
1188 // interfere with reproducing a bug
1189 tty->print_cr("Warning: requesting ciMethod record for method with no data: ");
1190 method->print_name(tty);
1191 tty->cr();
1192 } else {
1193 EXCEPTION_CONTEXT;
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