Mercurial > hg > truffle
diff src/share/vm/oops/instanceKlass.cpp @ 14518:d8041d695d19
Merged with jdk9/dev/hotspot changeset 3812c088b945
author | twisti |
---|---|
date | Tue, 11 Mar 2014 18:45:59 -0700 |
parents | b270b954ba9a 16c705d792be |
children | 8762b6b8fbb6 |
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--- a/src/share/vm/oops/instanceKlass.cpp Wed Mar 12 00:00:05 2014 +0100 +++ b/src/share/vm/oops/instanceKlass.cpp Tue Mar 11 18:45:59 2014 -0700 @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -49,6 +49,7 @@ #include "prims/jvmtiExport.hpp" #include "prims/jvmtiRedefineClassesTrace.hpp" #include "prims/jvmtiRedefineClasses.hpp" +#include "prims/jvmtiThreadState.hpp" #include "prims/methodComparator.hpp" #include "runtime/fieldDescriptor.hpp" #include "runtime/handles.inline.hpp" @@ -77,51 +78,6 @@ #ifdef DTRACE_ENABLED -#ifndef USDT2 - -HS_DTRACE_PROBE_DECL4(hotspot, class__initialization__required, - char*, intptr_t, oop, intptr_t); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__recursive, - char*, intptr_t, oop, intptr_t, int); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__concurrent, - char*, intptr_t, oop, intptr_t, int); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__erroneous, - char*, intptr_t, oop, intptr_t, int); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__super__failed, - char*, intptr_t, oop, intptr_t, int); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__clinit, - char*, intptr_t, oop, intptr_t, int); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__error, - char*, intptr_t, oop, intptr_t, int); -HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__end, - char*, intptr_t, oop, intptr_t, int); - -#define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) \ - { \ - char* data = NULL; \ - int len = 0; \ - Symbol* name = (clss)->name(); \ - if (name != NULL) { \ - data = (char*)name->bytes(); \ - len = name->utf8_length(); \ - } \ - HS_DTRACE_PROBE4(hotspot, class__initialization__##type, \ - data, len, SOLARIS_ONLY((void *))(clss)->class_loader(), thread_type); \ - } - -#define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \ - { \ - char* data = NULL; \ - int len = 0; \ - Symbol* name = (clss)->name(); \ - if (name != NULL) { \ - data = (char*)name->bytes(); \ - len = name->utf8_length(); \ - } \ - HS_DTRACE_PROBE5(hotspot, class__initialization__##type, \ - data, len, SOLARIS_ONLY((void *))(clss)->class_loader(), thread_type, wait); \ - } -#else /* USDT2 */ #define HOTSPOT_CLASS_INITIALIZATION_required HOTSPOT_CLASS_INITIALIZATION_REQUIRED #define HOTSPOT_CLASS_INITIALIZATION_recursive HOTSPOT_CLASS_INITIALIZATION_RECURSIVE @@ -156,7 +112,6 @@ HOTSPOT_CLASS_INITIALIZATION_##type( \ data, len, (clss)->class_loader(), thread_type, wait); \ } -#endif /* USDT2 */ #else // ndef DTRACE_ENABLED @@ -908,10 +863,16 @@ // Step 10 and 11 Handle e(THREAD, PENDING_EXCEPTION); CLEAR_PENDING_EXCEPTION; + // JVMTI has already reported the pending exception + // JVMTI internal flag reset is needed in order to report ExceptionInInitializerError + JvmtiExport::clear_detected_exception((JavaThread*)THREAD); { EXCEPTION_MARK; this_oop->set_initialization_state_and_notify(initialization_error, THREAD); CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, class initialization error is thrown below + // JVMTI has already reported the pending exception + // JVMTI internal flag reset is needed in order to report ExceptionInInitializerError + JvmtiExport::clear_detected_exception((JavaThread*)THREAD); } DTRACE_CLASSINIT_PROBE_WAIT(error, InstanceKlass::cast(this_oop()), -1,wait); if (e->is_a(SystemDictionary::Error_klass())) { @@ -1203,7 +1164,11 @@ MutexLocker x(OopMapCacheAlloc_lock); // First time use. Allocate a cache in C heap if (_oop_map_cache == NULL) { - _oop_map_cache = new OopMapCache(); + // Release stores from OopMapCache constructor before assignment + // to _oop_map_cache. C++ compilers on ppc do not emit the + // required memory barrier only because of the volatile + // qualifier of _oop_map_cache. + OrderAccess::release_store_ptr(&_oop_map_cache, new OopMapCache()); } } // _oop_map_cache is constant after init; lookup below does is own locking. @@ -1498,13 +1463,18 @@ return -1; } -// lookup_method searches both the local methods array and all superclasses methods arrays +// uncached_lookup_method searches both the local class methods array and all +// superclasses methods arrays, skipping any overpass methods in superclasses. Method* InstanceKlass::uncached_lookup_method(Symbol* name, Symbol* signature) const { Klass* klass = const_cast<InstanceKlass*>(this); + bool dont_ignore_overpasses = true; // For the class being searched, find its overpasses. while (klass != NULL) { Method* method = InstanceKlass::cast(klass)->find_method(name, signature); - if (method != NULL) return method; + if ((method != NULL) && (dont_ignore_overpasses || !method->is_overpass())) { + return method; + } klass = InstanceKlass::cast(klass)->super(); + dont_ignore_overpasses = false; // Ignore overpass methods in all superclasses. } return NULL; } @@ -1519,7 +1489,7 @@ } // Look up interfaces if (m == NULL) { - m = lookup_method_in_all_interfaces(name, signature); + m = lookup_method_in_all_interfaces(name, signature, false); } return m; } @@ -1528,14 +1498,16 @@ // Do NOT return private or static methods, new in JDK8 which are not externally visible // They should only be found in the initial InterfaceMethodRef Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name, - Symbol* signature) const { + Symbol* signature, + bool skip_default_methods) const { Array<Klass*>* all_ifs = transitive_interfaces(); int num_ifs = all_ifs->length(); InstanceKlass *ik = NULL; for (int i = 0; i < num_ifs; i++) { ik = InstanceKlass::cast(all_ifs->at(i)); Method* m = ik->lookup_method(name, signature); - if (m != NULL && m->is_public() && !m->is_static()) { + if (m != NULL && m->is_public() && !m->is_static() && + (!skip_default_methods || !m->is_default_method())) { return m; } } @@ -2227,15 +2199,7 @@ for (int m = 0; m < methods()->length(); m++) { MethodData* mdo = methods()->at(m)->method_data(); if (mdo != NULL) { - for (ProfileData* data = mdo->first_data(); - mdo->is_valid(data); - data = mdo->next_data(data)) { - data->clean_weak_klass_links(is_alive); - } - ParametersTypeData* parameters = mdo->parameters_type_data(); - if (parameters != NULL) { - parameters->clean_weak_klass_links(is_alive); - } + mdo->clean_method_data(is_alive); } } } @@ -2754,7 +2718,7 @@ Method* m = n->method(); // Search for match while(cur != NULL && cur != n) { - if (TieredCompilation) { + if (TieredCompilation && m == cur->method()) { // Find max level before n max_level = MAX2(max_level, cur->comp_level()); } @@ -2776,7 +2740,9 @@ cur = next; while (cur != NULL) { // Find max level after n - max_level = MAX2(max_level, cur->comp_level()); + if (m == cur->method()) { + max_level = MAX2(max_level, cur->comp_level()); + } cur = cur->osr_link(); } m->set_highest_osr_comp_level(max_level); @@ -3022,8 +2988,7 @@ offset <= (juint) value->length() && offset + length <= (juint) value->length()) { st->print(BULLET"string: "); - Handle h_obj(obj); - java_lang_String::print(h_obj, st); + java_lang_String::print(obj, st); st->cr(); if (!WizardMode) return; // that is enough } @@ -3174,7 +3139,7 @@ virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } }; -void InstanceKlass::verify_on(outputStream* st, bool check_dictionary) { +void InstanceKlass::verify_on(outputStream* st) { #ifndef PRODUCT // Avoid redundant verifies, this really should be in product. if (_verify_count == Universe::verify_count()) return; @@ -3182,14 +3147,11 @@ #endif // Verify Klass - Klass::verify_on(st, check_dictionary); - - // Verify that klass is present in SystemDictionary if not already - // verifying the SystemDictionary. - if (is_loaded() && !is_anonymous() && check_dictionary) { - Symbol* h_name = name(); - SystemDictionary::verify_obj_klass_present(h_name, class_loader_data()); - } + Klass::verify_on(st); + + // Verify that klass is present in ClassLoaderData + guarantee(class_loader_data()->contains_klass(this), + "this class isn't found in class loader data"); // Verify vtables if (is_linked()) {