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comparison src/share/vm/oops/constantPool.cpp @ 12264:b2e698d2276c

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8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation Summary: Enhance method resolution and resulting data structures, plus some refactoring. Reviewed-by: twisti, acorn, jrose
author drchase
date Fri, 13 Sep 2013 22:38:02 -0400
parents e0c9a1d29eb4
children a7609ec351d6
comparison
equal deleted inserted replaced
12261:2c98370f2611 12264:b2e698d2276c
391 } 391 }
392 392
393 393
394 Klass* ConstantPool::klass_ref_at_if_loaded(constantPoolHandle this_oop, int which) { 394 Klass* ConstantPool::klass_ref_at_if_loaded(constantPoolHandle this_oop, int which) {
395 return klass_at_if_loaded(this_oop, this_oop->klass_ref_index_at(which)); 395 return klass_at_if_loaded(this_oop, this_oop->klass_ref_index_at(which));
396 }
397
398
399 // This is an interface for the compiler that allows accessing non-resolved entries
400 // in the constant pool - but still performs the validations tests. Must be used
401 // in a pre-parse of the compiler - to determine what it can do and not do.
402 // Note: We cannot update the ConstantPool from the vm_thread.
403 Klass* ConstantPool::klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int index, TRAPS) {
404 int which = this_oop->klass_ref_index_at(index);
405 CPSlot entry = this_oop->slot_at(which);
406 if (entry.is_resolved()) {
407 assert(entry.get_klass()->is_klass(), "must be");
408 return entry.get_klass();
409 } else {
410 assert(entry.is_unresolved(), "must be either symbol or klass");
411 Symbol* name = entry.get_symbol();
412 oop loader = this_oop->pool_holder()->class_loader();
413 oop protection_domain = this_oop->pool_holder()->protection_domain();
414 Handle h_loader(THREAD, loader);
415 Handle h_prot (THREAD, protection_domain);
416 KlassHandle k(THREAD, SystemDictionary::find(name, h_loader, h_prot, THREAD));
417
418 // Do access check for klasses
419 if( k.not_null() ) verify_constant_pool_resolve(this_oop, k, CHECK_NULL);
420 return k();
421 }
422 } 396 }
423 397
424 398
425 Method* ConstantPool::method_at_if_loaded(constantPoolHandle cpool, 399 Method* ConstantPool::method_at_if_loaded(constantPoolHandle cpool,
426 int which) { 400 int which) {