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comparison src/share/vm/prims/jvmtiImpl.cpp @ 2177:3582bf76420e

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6990754: Use native memory and reference counting to implement SymbolTable Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank
author coleenp
date Thu, 27 Jan 2011 16:11:27 -0800
parents 9afee0b9fc1d
children bf8517f4e4d0
comparison
equal deleted inserted replaced
2176:27e4ea99855d 2177:3582bf76420e
283 // add/remove breakpoint to/from versions of the method that 283 // add/remove breakpoint to/from versions of the method that
284 // are EMCP. Directly or transitively obsolete methods are 284 // are EMCP. Directly or transitively obsolete methods are
285 // not saved in the PreviousVersionInfo. 285 // not saved in the PreviousVersionInfo.
286 Thread *thread = Thread::current(); 286 Thread *thread = Thread::current();
287 instanceKlassHandle ikh = instanceKlassHandle(thread, _method->method_holder()); 287 instanceKlassHandle ikh = instanceKlassHandle(thread, _method->method_holder());
288 symbolOop m_name = _method->name(); 288 Symbol* m_name = _method->name();
289 symbolOop m_signature = _method->signature(); 289 Symbol* m_signature = _method->signature();
290 290
291 { 291 {
292 ResourceMark rm(thread); 292 ResourceMark rm(thread);
293 // PreviousVersionInfo objects returned via PreviousVersionWalker 293 // PreviousVersionInfo objects returned via PreviousVersionWalker
294 // contain a GrowableArray of handles. We have to clean up the 294 // contain a GrowableArray of handles. We have to clean up the
626 int len = (int) strlen(ty_sign); 626 int len = (int) strlen(ty_sign);
627 if (ty_sign[0] == 'L' && ty_sign[len-1] == ';') { // Need pure class/interface name 627 if (ty_sign[0] == 'L' && ty_sign[len-1] == ';') { // Need pure class/interface name
628 ty_sign++; 628 ty_sign++;
629 len -= 2; 629 len -= 2;
630 } 630 }
631 symbolHandle ty_sym = oopFactory::new_symbol_handle(ty_sign, len, thread); 631 TempNewSymbol ty_sym = SymbolTable::new_symbol(ty_sign, len, thread);
632 if (klass->name() == ty_sym()) { 632 if (klass->name() == ty_sym) {
633 return true; 633 return true;
634 } 634 }
635 // Compare primary supers 635 // Compare primary supers
636 int super_depth = klass->super_depth(); 636 int super_depth = klass->super_depth();
637 int idx; 637 int idx;
638 for (idx = 0; idx < super_depth; idx++) { 638 for (idx = 0; idx < super_depth; idx++) {
639 if (Klass::cast(klass->primary_super_of_depth(idx))->name() == ty_sym()) { 639 if (Klass::cast(klass->primary_super_of_depth(idx))->name() == ty_sym) {
640 return true; 640 return true;
641 } 641 }
642 } 642 }
643 // Compare secondary supers 643 // Compare secondary supers
644 objArrayOop sec_supers = klass->secondary_supers(); 644 objArrayOop sec_supers = klass->secondary_supers();
645 for (idx = 0; idx < sec_supers->length(); idx++) { 645 for (idx = 0; idx < sec_supers->length(); idx++) {
646 if (Klass::cast((klassOop) sec_supers->obj_at(idx))->name() == ty_sym()) { 646 if (Klass::cast((klassOop) sec_supers->obj_at(idx))->name() == ty_sym) {
647 return true; 647 return true;
648 } 648 }
649 } 649 }
650 return false; 650 return false;
651 } 651 }
688 } 688 }
689 if (signature_idx == -1) { 689 if (signature_idx == -1) {
690 _result = JVMTI_ERROR_INVALID_SLOT; 690 _result = JVMTI_ERROR_INVALID_SLOT;
691 return false; // Incorrect slot index 691 return false; // Incorrect slot index
692 } 692 }
693 symbolOop sign_sym = method_oop->constants()->symbol_at(signature_idx); 693 Symbol* sign_sym = method_oop->constants()->symbol_at(signature_idx);
694 const char* signature = (const char *) sign_sym->as_utf8(); 694 const char* signature = (const char *) sign_sym->as_utf8();
695 BasicType slot_type = char2type(signature[0]); 695 BasicType slot_type = char2type(signature[0]);
696 696
697 switch (slot_type) { 697 switch (slot_type) {
698 case T_BYTE: 698 case T_BYTE: