author | tschatzl |
Wed, 08 Aug 2018 15:31:07 +0200 | |
changeset 51334 | cc2c79d22508 |
parent 50634 | c349d409262a |
child 51444 | 3e5d28e6de32 |
permissions | -rw-r--r-- |
50113 | 1 |
/* |
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* Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "jfr/recorder/checkpoint/types/jfrTypeSetUtils.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/symbol.hpp" |
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||
51334
cc2c79d22508
8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents:
50634
diff
changeset
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JfrSymbolId::JfrSymbolId() : _sym_table(new SymbolTable(this)), _cstring_table(new CStringTable(this)), _symbol_id_counter(0) { |
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assert(_sym_table != NULL, "invariant"); |
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assert(_cstring_table != NULL, "invariant"); |
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initialize(); |
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} |
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void JfrSymbolId::initialize() { |
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clear(); |
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assert(_symbol_id_counter == 0, "invariant"); |
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} |
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void JfrSymbolId::clear() { |
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assert(_sym_table != NULL, "invariant"); |
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if (_sym_table->has_entries()) { |
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_sym_table->clear_entries(); |
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} |
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assert(!_sym_table->has_entries(), "invariant"); |
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assert(_cstring_table != NULL, "invariant"); |
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if (_cstring_table->has_entries()) { |
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_cstring_table->clear_entries(); |
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} |
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assert(!_cstring_table->has_entries(), "invariant"); |
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_symbol_id_counter = 0; |
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} |
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JfrSymbolId::~JfrSymbolId() { |
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delete _sym_table; |
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delete _cstring_table; |
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} |
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traceid JfrSymbolId::mark_anonymous_klass_name(const Klass* k) { |
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assert(k != NULL, "invariant"); |
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assert(k->is_instance_klass(), "invariant"); |
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assert(is_anonymous_klass(k), "invariant"); |
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uintptr_t anonymous_symbol_hash_code = 0; |
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const char* const anonymous_symbol = |
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create_anonymous_klass_symbol((const InstanceKlass*)k, anonymous_symbol_hash_code); |
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if (anonymous_symbol == NULL) { |
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return 0; |
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} |
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assert(anonymous_symbol_hash_code != 0, "invariant"); |
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traceid symbol_id = mark(anonymous_symbol, anonymous_symbol_hash_code); |
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assert(mark(anonymous_symbol, anonymous_symbol_hash_code) == symbol_id, "invariant"); |
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return symbol_id; |
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} |
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const JfrSymbolId::SymbolEntry* JfrSymbolId::map_symbol(const Symbol* symbol) const { |
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return _sym_table->lookup_only(symbol, (uintptr_t)const_cast<Symbol*>(symbol)->identity_hash()); |
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} |
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const JfrSymbolId::SymbolEntry* JfrSymbolId::map_symbol(uintptr_t hash) const { |
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return _sym_table->lookup_only(NULL, hash); |
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} |
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const JfrSymbolId::CStringEntry* JfrSymbolId::map_cstring(uintptr_t hash) const { |
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return _cstring_table->lookup_only(NULL, hash); |
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} |
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void JfrSymbolId::assign_id(SymbolEntry* entry) { |
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assert(entry != NULL, "invariant"); |
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assert(entry->id() == 0, "invariant"); |
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entry->set_id(++_symbol_id_counter); |
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} |
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bool JfrSymbolId::equals(const Symbol* query, uintptr_t hash, const SymbolEntry* entry) { |
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// query might be NULL |
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assert(entry != NULL, "invariant"); |
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assert(entry->hash() == hash, "invariant"); |
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return true; |
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} |
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void JfrSymbolId::assign_id(CStringEntry* entry) { |
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assert(entry != NULL, "invariant"); |
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assert(entry->id() == 0, "invariant"); |
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entry->set_id(++_symbol_id_counter); |
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} |
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bool JfrSymbolId::equals(const char* query, uintptr_t hash, const CStringEntry* entry) { |
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// query might be NULL |
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assert(entry != NULL, "invariant"); |
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assert(entry->hash() == hash, "invariant"); |
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return true; |
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} |
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traceid JfrSymbolId::mark(const Klass* k) { |
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assert(k != NULL, "invariant"); |
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traceid symbol_id = 0; |
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if (is_anonymous_klass(k)) { |
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symbol_id = mark_anonymous_klass_name(k); |
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} |
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if (0 == symbol_id) { |
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const Symbol* const sym = k->name(); |
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if (sym != NULL) { |
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symbol_id = mark(sym); |
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} |
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} |
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assert(symbol_id > 0, "a symbol handler must mark the symbol for writing"); |
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return symbol_id; |
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} |
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traceid JfrSymbolId::mark(const Symbol* symbol) { |
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assert(symbol != NULL, "invariant"); |
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return mark(symbol, (uintptr_t)const_cast<Symbol*>(symbol)->identity_hash()); |
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} |
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traceid JfrSymbolId::mark(const Symbol* data, uintptr_t hash) { |
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assert(data != NULL, "invariant"); |
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assert(_sym_table != NULL, "invariant"); |
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return _sym_table->id(data, hash); |
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} |
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traceid JfrSymbolId::mark(const char* str, uintptr_t hash) { |
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assert(str != NULL, "invariant"); |
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return _cstring_table->id(str, hash); |
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} |
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bool JfrSymbolId::is_anonymous_klass(const Klass* k) { |
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assert(k != NULL, "invariant"); |
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return k->is_instance_klass() && ((const InstanceKlass*)k)->is_anonymous(); |
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} |
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/* |
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* jsr292 anonymous classes symbol is the external name + |
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* the identity_hashcode slash appended: |
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* java.lang.invoke.LambdaForm$BMH/22626602 |
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* |
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* caller needs ResourceMark |
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*/ |
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uintptr_t JfrSymbolId::anonymous_klass_name_hash_code(const InstanceKlass* ik) { |
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assert(ik != NULL, "invariant"); |
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assert(ik->is_anonymous(), "invariant"); |
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const oop mirror = ik->java_mirror(); |
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assert(mirror != NULL, "invariant"); |
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return (uintptr_t)mirror->identity_hash(); |
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} |
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const char* JfrSymbolId::create_anonymous_klass_symbol(const InstanceKlass* ik, uintptr_t& hashcode) { |
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assert(ik != NULL, "invariant"); |
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assert(ik->is_anonymous(), "invariant"); |
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assert(0 == hashcode, "invariant"); |
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char* anonymous_symbol = NULL; |
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const oop mirror = ik->java_mirror(); |
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assert(mirror != NULL, "invariant"); |
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char hash_buf[40]; |
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hashcode = anonymous_klass_name_hash_code(ik); |
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sprintf(hash_buf, "/" UINTX_FORMAT, hashcode); |
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const size_t hash_len = strlen(hash_buf); |
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const size_t result_len = ik->name()->utf8_length(); |
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anonymous_symbol = NEW_RESOURCE_ARRAY(char, result_len + hash_len + 1); |
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ik->name()->as_klass_external_name(anonymous_symbol, (int)result_len + 1); |
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assert(strlen(anonymous_symbol) == result_len, "invariant"); |
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strcpy(anonymous_symbol + result_len, hash_buf); |
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assert(strlen(anonymous_symbol) == result_len + hash_len, "invariant"); |
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return anonymous_symbol; |
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} |
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uintptr_t JfrSymbolId::regular_klass_name_hash_code(const Klass* k) { |
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assert(k != NULL, "invariant"); |
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const Symbol* const sym = k->name(); |
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assert(sym != NULL, "invariant"); |
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return (uintptr_t)const_cast<Symbol*>(sym)->identity_hash(); |
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} |
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JfrArtifactSet::JfrArtifactSet(bool class_unload) : _symbol_id(new JfrSymbolId()), |
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_klass_list(NULL), |
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_class_unload(class_unload) { |
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initialize(class_unload); |
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assert(_klass_list != NULL, "invariant"); |
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} |
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static const size_t initial_class_list_size = 200; |
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void JfrArtifactSet::initialize(bool class_unload) { |
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assert(_symbol_id != NULL, "invariant"); |
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_symbol_id->initialize(); |
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assert(!_symbol_id->has_entries(), "invariant"); |
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50634
c349d409262a
8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents:
50113
diff
changeset
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_symbol_id->mark(BOOTSTRAP_LOADER_NAME, 0); // pre-load "bootstrap" |
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_class_unload = class_unload; |
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// resource allocation |
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_klass_list = new GrowableArray<const Klass*>(initial_class_list_size, false, mtTracing); |
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} |
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JfrArtifactSet::~JfrArtifactSet() { |
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clear(); |
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} |
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void JfrArtifactSet::clear() { |
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_symbol_id->clear(); |
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// _klass_list will be cleared by a ResourceMark |
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} |
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traceid JfrArtifactSet::mark_anonymous_klass_name(const Klass* klass) { |
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return _symbol_id->mark_anonymous_klass_name(klass); |
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} |
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traceid JfrArtifactSet::mark(const Symbol* sym, uintptr_t hash) { |
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return _symbol_id->mark(sym, hash); |
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} |
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traceid JfrArtifactSet::mark(const Klass* klass) { |
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return _symbol_id->mark(klass); |
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} |
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traceid JfrArtifactSet::mark(const Symbol* symbol) { |
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return _symbol_id->mark(symbol); |
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} |
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traceid JfrArtifactSet::mark(const char* const str, uintptr_t hash) { |
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return _symbol_id->mark(str, hash); |
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} |
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const JfrSymbolId::SymbolEntry* JfrArtifactSet::map_symbol(const Symbol* symbol) const { |
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return _symbol_id->map_symbol(symbol); |
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} |
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const JfrSymbolId::SymbolEntry* JfrArtifactSet::map_symbol(uintptr_t hash) const { |
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return _symbol_id->map_symbol(hash); |
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} |
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const JfrSymbolId::CStringEntry* JfrArtifactSet::map_cstring(uintptr_t hash) const { |
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return _symbol_id->map_cstring(hash); |
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} |
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bool JfrArtifactSet::has_klass_entries() const { |
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return _klass_list->is_nonempty(); |
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} |
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int JfrArtifactSet::entries() const { |
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return _klass_list->length(); |
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} |
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void JfrArtifactSet::register_klass(const Klass* k) { |
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assert(k != NULL, "invariant"); |
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assert(_klass_list != NULL, "invariant"); |
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assert(_klass_list->find(k) == -1, "invariant"); |
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_klass_list->append(k); |
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} |