hotspot/src/share/vm/classfile/classLoader.cpp
author coleenp
Mon, 01 Dec 2014 12:16:15 -0500
changeset 27880 afb974a04396
parent 27618 790a8bf5488b
child 27883 3179632c8f66
permissions -rw-r--r--
8060074: os::free() takes MemoryTrackingLevel but doesn't need it Summary: Cleaned up unused arguments in os::free and it's callers. Reviewed-by: lfoltan, coleenp, ctornqvi, dholmes Contributed-by: max.ockner@oracle.com
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/*
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 * Copyright (c) 1997, 2014, 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 "classfile/classFileParser.hpp"
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#include "classfile/classFileStream.hpp"
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#include "classfile/classLoader.hpp"
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#include "classfile/classLoaderExt.hpp"
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#include "classfile/classLoaderData.inline.hpp"
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#include "classfile/javaClasses.hpp"
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#if INCLUDE_CDS
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#include "classfile/sharedPathsMiscInfo.hpp"
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#include "classfile/sharedClassUtil.hpp"
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#endif
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "compiler/compileBroker.hpp"
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#include "gc_interface/collectedHeap.inline.hpp"
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#include "interpreter/bytecodeStream.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/filemap.hpp"
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#include "memory/generation.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/universe.inline.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/instanceRefKlass.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/symbol.hpp"
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#include "prims/jvm_misc.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/compilationPolicy.hpp"
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#include "runtime/fprofiler.hpp"
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#include "runtime/handles.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/init.hpp"
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#include "runtime/interfaceSupport.hpp"
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#include "runtime/java.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/os.hpp"
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#include "runtime/threadCritical.hpp"
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#include "runtime/timer.hpp"
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#include "services/management.hpp"
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#include "services/threadService.hpp"
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#include "utilities/events.hpp"
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#include "utilities/hashtable.hpp"
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#include "utilities/hashtable.inline.hpp"
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// Entry points in zip.dll for loading zip/jar file entries
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typedef void * * (JNICALL *ZipOpen_t)(const char *name, char **pmsg);
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typedef void (JNICALL *ZipClose_t)(jzfile *zip);
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typedef jzentry* (JNICALL *FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen);
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typedef jboolean (JNICALL *ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf);
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typedef jboolean (JNICALL *ReadMappedEntry_t)(jzfile *zip, jzentry *entry, unsigned char **buf, char *namebuf);
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typedef jzentry* (JNICALL *GetNextEntry_t)(jzfile *zip, jint n);
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typedef jint     (JNICALL *Crc32_t)(jint crc, const jbyte *buf, jint len);
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static ZipOpen_t         ZipOpen            = NULL;
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static ZipClose_t        ZipClose           = NULL;
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static FindEntry_t       FindEntry          = NULL;
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static ReadEntry_t       ReadEntry          = NULL;
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static ReadMappedEntry_t ReadMappedEntry    = NULL;
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static GetNextEntry_t    GetNextEntry       = NULL;
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static canonicalize_fn_t CanonicalizeEntry  = NULL;
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static Crc32_t           Crc32              = NULL;
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// Globals
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PerfCounter*    ClassLoader::_perf_accumulated_time = NULL;
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PerfCounter*    ClassLoader::_perf_classes_inited = NULL;
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PerfCounter*    ClassLoader::_perf_class_init_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_init_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_classes_verified = NULL;
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PerfCounter*    ClassLoader::_perf_class_verify_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_verify_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_classes_linked = NULL;
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PerfCounter*    ClassLoader::_perf_class_link_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_link_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_class_parse_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_parse_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_sys_class_lookup_time = NULL;
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PerfCounter*    ClassLoader::_perf_shared_classload_time = NULL;
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PerfCounter*    ClassLoader::_perf_sys_classload_time = NULL;
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PerfCounter*    ClassLoader::_perf_app_classload_time = NULL;
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PerfCounter*    ClassLoader::_perf_app_classload_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_app_classload_count = NULL;
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PerfCounter*    ClassLoader::_perf_define_appclasses = NULL;
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PerfCounter*    ClassLoader::_perf_define_appclass_time = NULL;
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PerfCounter*    ClassLoader::_perf_define_appclass_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_app_classfile_bytes_read = NULL;
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PerfCounter*    ClassLoader::_perf_sys_classfile_bytes_read = NULL;
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PerfCounter*    ClassLoader::_sync_systemLoaderLockContentionRate = NULL;
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PerfCounter*    ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL;
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PerfCounter*    ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL;
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PerfCounter*    ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL;
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PerfCounter*    ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL;
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PerfCounter*    ClassLoader::_unsafe_defineClassCallCounter = NULL;
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PerfCounter*    ClassLoader::_isUnsyncloadClass = NULL;
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PerfCounter*    ClassLoader::_load_instance_class_failCounter = NULL;
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ClassPathEntry* ClassLoader::_first_entry         = NULL;
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ClassPathEntry* ClassLoader::_last_entry          = NULL;
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int             ClassLoader::_num_entries         = 0;
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PackageHashtable* ClassLoader::_package_hash_table = NULL;
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#if INCLUDE_CDS
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SharedPathsMiscInfo* ClassLoader::_shared_paths_misc_info = NULL;
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#endif
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// helper routines
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bool string_starts_with(const char* str, const char* str_to_find) {
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  size_t str_len = strlen(str);
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  size_t str_to_find_len = strlen(str_to_find);
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  if (str_to_find_len > str_len) {
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    return false;
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  }
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  return (strncmp(str, str_to_find, str_to_find_len) == 0);
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}
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bool string_ends_with(const char* str, const char* str_to_find) {
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  size_t str_len = strlen(str);
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  size_t str_to_find_len = strlen(str_to_find);
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  if (str_to_find_len > str_len) {
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    return false;
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  }
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  return (strncmp(str + (str_len - str_to_find_len), str_to_find, str_to_find_len) == 0);
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}
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MetaIndex::MetaIndex(char** meta_package_names, int num_meta_package_names) {
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  if (num_meta_package_names == 0) {
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    _meta_package_names = NULL;
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    _num_meta_package_names = 0;
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  } else {
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    _meta_package_names = NEW_C_HEAP_ARRAY(char*, num_meta_package_names, mtClass);
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    _num_meta_package_names = num_meta_package_names;
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    memcpy(_meta_package_names, meta_package_names, num_meta_package_names * sizeof(char*));
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  }
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}
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MetaIndex::~MetaIndex() {
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  FREE_C_HEAP_ARRAY(char*, _meta_package_names);
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}
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bool MetaIndex::may_contain(const char* class_name) {
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  if ( _num_meta_package_names == 0) {
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    return false;
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  }
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  size_t class_name_len = strlen(class_name);
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  for (int i = 0; i < _num_meta_package_names; i++) {
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    char* pkg = _meta_package_names[i];
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    size_t pkg_len = strlen(pkg);
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    size_t min_len = MIN2(class_name_len, pkg_len);
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    if (!strncmp(class_name, pkg, min_len)) {
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      return true;
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    }
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  }
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  return false;
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}
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ClassPathEntry::ClassPathEntry() {
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  set_next(NULL);
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}
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bool ClassPathEntry::is_lazy() {
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  return false;
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}
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ClassPathDirEntry::ClassPathDirEntry(const char* dir) : ClassPathEntry() {
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  char* copy = NEW_C_HEAP_ARRAY(char, strlen(dir)+1, mtClass);
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  strcpy(copy, dir);
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  _dir = copy;
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}
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ClassFileStream* ClassPathDirEntry::open_stream(const char* name, TRAPS) {
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  // construct full path name
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  char path[JVM_MAXPATHLEN];
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  if (jio_snprintf(path, sizeof(path), "%s%s%s", _dir, os::file_separator(), name) == -1) {
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    return NULL;
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  }
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  // check if file exists
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  struct stat st;
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  if (os::stat(path, &st) == 0) {
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#if INCLUDE_CDS
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    if (DumpSharedSpaces) {
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      // We have already check in ClassLoader::check_shared_classpath() that the directory is empty, so
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      // we should never find a file underneath it -- unless user has added a new file while we are running
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      // the dump, in which case let's quit!
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      ShouldNotReachHere();
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    }
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#endif
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    // found file, open it
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    int file_handle = os::open(path, 0, 0);
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    if (file_handle != -1) {
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      // read contents into resource array
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      u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size);
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      size_t num_read = os::read(file_handle, (char*) buffer, st.st_size);
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      // close file
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      os::close(file_handle);
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      // construct ClassFileStream
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      if (num_read == (size_t)st.st_size) {
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        if (UsePerfData) {
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          ClassLoader::perf_sys_classfile_bytes_read()->inc(num_read);
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        }
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        return new ClassFileStream(buffer, st.st_size, _dir);    // Resource allocated
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      }
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    }
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  }
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  return NULL;
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}
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ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name) : ClassPathEntry() {
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  _zip = zip;
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  char *copy = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1, mtClass);
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  strcpy(copy, zip_name);
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  _zip_name = copy;
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}
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ClassPathZipEntry::~ClassPathZipEntry() {
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  if (ZipClose != NULL) {
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    (*ZipClose)(_zip);
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  }
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  FREE_C_HEAP_ARRAY(char, _zip_name);
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}
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u1* ClassPathZipEntry::open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS) {
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    // enable call to C land
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  JavaThread* thread = JavaThread::current();
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  ThreadToNativeFromVM ttn(thread);
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  // check whether zip archive contains name
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  jint name_len;
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  jzentry* entry = (*FindEntry)(_zip, name, filesize, &name_len);
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  if (entry == NULL) return NULL;
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  u1* buffer;
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  char name_buf[128];
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  char* filename;
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  if (name_len < 128) {
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    filename = name_buf;
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  } else {
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    filename = NEW_RESOURCE_ARRAY(char, name_len + 1);
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  }
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  // file found, get pointer to the entry in mmapped jar file.
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  if (ReadMappedEntry == NULL ||
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      !(*ReadMappedEntry)(_zip, entry, &buffer, filename)) {
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      // mmapped access not available, perhaps due to compression,
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      // read contents into resource array
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      int size = (*filesize) + ((nul_terminate) ? 1 : 0);
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      buffer = NEW_RESOURCE_ARRAY(u1, size);
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      if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL;
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  }
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  // return result
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  if (nul_terminate) {
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    buffer[*filesize] = 0;
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  }
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  return buffer;
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}
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ClassFileStream* ClassPathZipEntry::open_stream(const char* name, TRAPS) {
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  jint filesize;
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  u1* buffer = open_entry(name, &filesize, false, CHECK_NULL);
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  if (buffer == NULL) {
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    return NULL;
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  }
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  if (UsePerfData) {
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    ClassLoader::perf_sys_classfile_bytes_read()->inc(filesize);
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  }
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  return new ClassFileStream(buffer, filesize, _zip_name); // Resource allocated
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}
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// invoke function for each entry in the zip file
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void ClassPathZipEntry::contents_do(void f(const char* name, void* context), void* context) {
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  JavaThread* thread = JavaThread::current();
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  HandleMark  handle_mark(thread);
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  ThreadToNativeFromVM ttn(thread);
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  for (int n = 0; ; n++) {
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    jzentry * ze = ((*GetNextEntry)(_zip, n));
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    if (ze == NULL) break;
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    (*f)(ze->name, context);
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  }
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}
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LazyClassPathEntry::LazyClassPathEntry(const char* path, const struct stat* st, bool throw_exception) : ClassPathEntry() {
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  _path = os::strdup_check_oom(path);
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  _st = *st;
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  _meta_index = NULL;
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  _resolved_entry = NULL;
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  _has_error = false;
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  _throw_exception = throw_exception;
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}
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LazyClassPathEntry::~LazyClassPathEntry() {
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  os::free((void*)_path);
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}
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bool LazyClassPathEntry::is_jar_file() {
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  return ((_st.st_mode & S_IFREG) == S_IFREG);
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}
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ClassPathEntry* LazyClassPathEntry::resolve_entry(TRAPS) {
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  if (_resolved_entry != NULL) {
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    return (ClassPathEntry*) _resolved_entry;
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  }
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  ClassPathEntry* new_entry = NULL;
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  new_entry = ClassLoader::create_class_path_entry(_path, &_st, false, _throw_exception, CHECK_NULL);
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  if (!_throw_exception && new_entry == NULL) {
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    assert(!HAS_PENDING_EXCEPTION, "must be");
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   336
    return NULL;
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   337
  }
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   338
  {
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   339
    ThreadCritical tc;
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diff changeset
   340
    if (_resolved_entry == NULL) {
489c9b5090e2 Initial load
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diff changeset
   341
      _resolved_entry = new_entry;
489c9b5090e2 Initial load
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parents:
diff changeset
   342
      return new_entry;
489c9b5090e2 Initial load
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diff changeset
   343
    }
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   344
  }
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   345
  assert(_resolved_entry != NULL, "bug in MT-safe resolution logic");
489c9b5090e2 Initial load
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   346
  delete new_entry;
489c9b5090e2 Initial load
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diff changeset
   347
  return (ClassPathEntry*) _resolved_entry;
489c9b5090e2 Initial load
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   348
}
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   349
19685
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   350
ClassFileStream* LazyClassPathEntry::open_stream(const char* name, TRAPS) {
1
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   351
  if (_meta_index != NULL &&
489c9b5090e2 Initial load
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parents:
diff changeset
   352
      !_meta_index->may_contain(name)) {
489c9b5090e2 Initial load
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parents:
diff changeset
   353
    return NULL;
489c9b5090e2 Initial load
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diff changeset
   354
  }
19685
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diff changeset
   355
  if (_has_error) {
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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diff changeset
   356
    return NULL;
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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diff changeset
   357
  }
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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   358
  ClassPathEntry* cpe = resolve_entry(THREAD);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
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diff changeset
   359
  if (cpe == NULL) {
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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diff changeset
   360
    _has_error = true;
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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diff changeset
   361
    return NULL;
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diff changeset
   362
  } else {
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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diff changeset
   363
    return cpe->open_stream(name, THREAD);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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diff changeset
   364
  }
1
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parents:
diff changeset
   365
}
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diff changeset
   366
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   367
bool LazyClassPathEntry::is_lazy() {
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   368
  return true;
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diff changeset
   369
}
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diff changeset
   370
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   371
u1* LazyClassPathEntry::open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS) {
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   372
  if (_has_error) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   373
    return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   374
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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   375
  ClassPathEntry* cpe = resolve_entry(THREAD);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   376
  if (cpe == NULL) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   377
    _has_error = true;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   378
    return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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   379
  } else if (cpe->is_jar_file()) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   380
    return ((ClassPathZipEntry*)cpe)->open_entry(name, filesize, nul_terminate,THREAD);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   381
  } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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   382
    ShouldNotReachHere();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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   383
    *filesize = 0;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   384
    return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   385
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   386
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   387
1
489c9b5090e2 Initial load
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diff changeset
   388
static void print_meta_index(LazyClassPathEntry* entry,
489c9b5090e2 Initial load
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parents:
diff changeset
   389
                             GrowableArray<char*>& meta_packages) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
  tty->print("[Meta index for %s=", entry->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
  for (int i = 0; i < meta_packages.length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
    if (i > 0) tty->print(" ");
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 22838
diff changeset
   393
    tty->print("%s", meta_packages.at(i));
1
489c9b5090e2 Initial load
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parents:
diff changeset
   394
  }
489c9b5090e2 Initial load
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parents:
diff changeset
   395
  tty->print_cr("]");
489c9b5090e2 Initial load
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parents:
diff changeset
   396
}
489c9b5090e2 Initial load
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parents:
diff changeset
   397
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diff changeset
   398
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   399
void ClassLoader::exit_with_path_failure(const char* error, const char* message) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   400
  assert(DumpSharedSpaces, "only called at dump time");
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   401
  tty->print_cr("Hint: enable -XX:+TraceClassPaths to diagnose the failure");
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   402
  vm_exit_during_initialization(error, message);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   403
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   404
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
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diff changeset
   406
void ClassLoader::trace_class_path(const char* msg, const char* name) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   407
  if (!TraceClassPaths) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   408
    return;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   409
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   410
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   411
  if (msg) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   412
    tty->print("%s", msg);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   413
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   414
  if (name) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   415
    if (strlen(name) < 256) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   416
      tty->print("%s", name);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   417
    } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   418
      // For very long paths, we need to print each character separately,
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   419
      // as print_cr() has a length limit
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   420
      while (name[0] != '\0') {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   421
        tty->print("%c", name[0]);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   422
        name++;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   423
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   424
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   425
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   426
  if (msg && msg[0] == '[') {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   427
    tty->print_cr("]");
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   428
  } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   429
    tty->cr();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   430
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   431
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   432
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   433
void ClassLoader::setup_bootstrap_meta_index() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  // Set up meta index which allows us to open boot jars lazily if
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
  // class data sharing is enabled
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   436
  const char* meta_index_path = Arguments::get_meta_index_path();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   437
  const char* meta_index_dir  = Arguments::get_meta_index_dir();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   438
  setup_meta_index(meta_index_path, meta_index_dir, 0);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   439
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   440
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   441
void ClassLoader::setup_meta_index(const char* meta_index_path, const char* meta_index_dir, int start_index) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
  const char* known_version = "% VERSION 2";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  FILE* file = fopen(meta_index_path, "r");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  int line_no = 0;
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   445
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   446
  if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   447
    if (file != NULL) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   448
      _shared_paths_misc_info->add_required_file(meta_index_path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   449
    } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   450
      _shared_paths_misc_info->add_nonexist_path(meta_index_path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   451
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   452
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   453
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
  if (file != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
    LazyClassPathEntry* cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    GrowableArray<char*> boot_class_path_packages(10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
    char package_name[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    bool skipCurrentJar = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
    while (fgets(package_name, sizeof(package_name), file) != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
      ++line_no;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
      // Remove trailing newline
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
      package_name[strlen(package_name) - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
      switch(package_name[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
        case '%':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
          if ((line_no == 1) && (strcmp(package_name, known_version) != 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
            if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
              tty->print("[Unsupported meta index version]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
            fclose(file);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
            return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
        // These directives indicate jar files which contain only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
        // classes, only non-classfile resources, or a combination of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
        // the two. See src/share/classes/sun/misc/MetaIndex.java and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
        // make/tools/MetaIndex/BuildMetaIndex.java in the J2SE
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
        // workspace.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
        case '#':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
        case '!':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
        case '@':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
          // Hand off current packages to current lazy entry (if any)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
          if ((cur_entry != NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
              (boot_class_path_packages.length() > 0)) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   488
            if ((TraceClassLoading || TraceClassPaths) && Verbose) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
              print_meta_index(cur_entry, boot_class_path_packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
            MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
                                             boot_class_path_packages.length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
            cur_entry->set_meta_index(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
          cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
          boot_class_path_packages.clear();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
          // Find lazy entry corresponding to this jar file
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   499
          int count = 0;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   500
          for (ClassPathEntry* entry = _first_entry; entry != NULL; entry = entry->next(), count++) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   501
            if (count >= start_index &&
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   502
                entry->is_lazy() &&
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
                string_starts_with(entry->name(), meta_index_dir) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
                string_ends_with(entry->name(), &package_name[2])) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
              cur_entry = (LazyClassPathEntry*) entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
          // If the first character is '@', it indicates the following jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
          // file is a resource only jar file in which case, we should skip
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
          // reading the subsequent entries since the resource loading is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
          // totally handled by J2SE side.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
          if (package_name[0] == '@') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
            if (cur_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
              cur_entry->set_meta_index(new MetaIndex(NULL, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
            cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
            skipCurrentJar = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
          } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
            skipCurrentJar = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
          break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
        default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
          if (!skipCurrentJar && cur_entry != NULL) {
25949
34557722059b 6424123: JVM crashes on failed 'strdup' call
zgu
parents: 25468
diff changeset
   530
            char* new_name = os::strdup_check_oom(package_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
            boot_class_path_packages.append(new_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
    // Hand off current packages to current lazy entry (if any)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
    if ((cur_entry != NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
        (boot_class_path_packages.length() > 0)) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   539
      if ((TraceClassLoading || TraceClassPaths) && Verbose) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
        print_meta_index(cur_entry, boot_class_path_packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
      MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
                                       boot_class_path_packages.length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
      cur_entry->set_meta_index(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    fclose(file);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   550
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   551
void ClassLoader::check_shared_classpath(const char *path) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   552
  if (strcmp(path, "") == 0) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   553
    exit_with_path_failure("Cannot have empty path in archived classpaths", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   554
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   555
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   556
  struct stat st;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   557
  if (os::stat(path, &st) == 0) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   558
    if ((st.st_mode & S_IFREG) != S_IFREG) { // is directory
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   559
      if (!os::dir_is_empty(path)) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   560
        tty->print_cr("Error: non-empty directory '%s'", path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   561
        exit_with_path_failure("CDS allows only empty directories in archived classpaths", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   562
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   563
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   564
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   565
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   566
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   567
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
void ClassLoader::setup_bootstrap_search_path() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  assert(_first_entry == NULL, "should not setup bootstrap class search path twice");
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   570
  const char* sys_class_path = Arguments::get_sysclasspath();
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   571
  if (PrintSharedArchiveAndExit) {
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   572
    // Don't print sys_class_path - this is the bootcp of this current VM process, not necessarily
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   573
    // the same as the bootcp of the shared archive.
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   574
  } else {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   575
    trace_class_path("[Bootstrap loader class path=", sys_class_path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   576
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   577
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   578
  if (DumpSharedSpaces) {
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   579
    _shared_paths_misc_info->add_boot_classpath(sys_class_path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   581
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   582
  setup_search_path(sys_class_path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   583
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   585
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   586
int ClassLoader::get_shared_paths_misc_info_size() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   587
  return _shared_paths_misc_info->get_used_bytes();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   588
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   589
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   590
void* ClassLoader::get_shared_paths_misc_info() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   591
  return _shared_paths_misc_info->buffer();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   592
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   593
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   594
bool ClassLoader::check_shared_paths_misc_info(void *buf, int size) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   595
  SharedPathsMiscInfo* checker = SharedClassUtil::allocate_shared_paths_misc_info((char*)buf, size);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   596
  bool result = checker->check();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   597
  delete checker;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   598
  return result;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   599
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   600
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   601
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   602
void ClassLoader::setup_search_path(const char *class_path) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   603
  int offset = 0;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   604
  int len = (int)strlen(class_path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
  int end = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  // Iterate over class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  for (int start = 0; start < len; start = end) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   609
    while (class_path[end] && class_path[end] != os::path_separator()[0]) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
    }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   612
    EXCEPTION_MARK;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   613
    ResourceMark rm(THREAD);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   614
    char* path = NEW_RESOURCE_ARRAY(char, end - start + 1);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   615
    strncpy(path, &class_path[start], end - start);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   616
    path[end - start] = '\0';
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
    update_class_path_entry_list(path, false);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   618
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   619
    if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   620
      check_shared_classpath(path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   621
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   622
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   623
    while (class_path[end] == os::path_separator()[0]) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   629
ClassPathEntry* ClassLoader::create_class_path_entry(const char *path, const struct stat* st,
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   630
                                                     bool lazy, bool throw_exception, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
  JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  if (lazy) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   633
    return new LazyClassPathEntry(path, st, throw_exception);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   635
  ClassPathEntry* new_entry = NULL;
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   636
  if ((st->st_mode & S_IFREG) == S_IFREG) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
    // Regular file, should be a zip file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
    // Canonicalized filename
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
    char canonical_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
    if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
      // This matches the classic VM
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   642
      if (throw_exception) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   643
        THROW_MSG_(vmSymbols::java_io_IOException(), "Bad pathname", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   644
      } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   645
        return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   646
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
    char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
    jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
      // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
      ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
      HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
      zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
    if (zip != NULL && error_msg == NULL) {
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   657
      new_entry = new ClassPathZipEntry(zip, path);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   658
      if (TraceClassLoading || TraceClassPaths) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
        tty->print_cr("[Opened %s]", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
      ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
      char *msg;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
      if (error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
        msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
        jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
        int len = (int)(strlen(path) + strlen(error_msg) + 128);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
        msg = NEW_RESOURCE_ARRAY(char, len); ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
        jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
      }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   672
      if (throw_exception) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   673
        THROW_MSG_(vmSymbols::java_lang_ClassNotFoundException(), msg, NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   674
      } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   675
        return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   676
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
    // Directory
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   680
    new_entry = new ClassPathDirEntry(path);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   681
    if (TraceClassLoading || TraceClassPaths) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
      tty->print_cr("[Path %s]", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
  }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   685
  return new_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
// Create a class path zip entry for a given path (return NULL if not found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
// or zip/JAR file cannot be opened)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
  // check for a regular file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  if (os::stat(path, &st) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
    if ((st.st_mode & S_IFREG) == S_IFREG) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
      char canonical_path[JVM_MAXPATHLEN];
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   697
      if (get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
        char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
        jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
          // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
          JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
          ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
          HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
          zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
        if (zip != NULL && error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
          // create using canonical path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
          return new ClassPathZipEntry(zip, canonical_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
// returns true if entry already on class path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
bool ClassLoader::contains_entry(ClassPathEntry *entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    // assume zip entries have been canonicalized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
    if (strcmp(entry->name(), e->name()) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
void ClassLoader::add_to_list(ClassPathEntry *new_entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
  if (new_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
    if (_last_entry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
      _first_entry = _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
      _last_entry->set_next(new_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
      _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
  }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   739
  _num_entries ++;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   742
// Returns true IFF the file/dir exists and the entry was successfully created.
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   743
bool ClassLoader::update_class_path_entry_list(const char *path,
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   744
                                               bool check_for_duplicates,
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   745
                                               bool throw_exception) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
  struct stat st;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   747
  if (os::stat(path, &st) == 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
    // File or directory found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
    ClassPathEntry* new_entry = NULL;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   750
    Thread* THREAD = Thread::current();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   751
    new_entry = create_class_path_entry(path, &st, LazyBootClassLoader, throw_exception, CHECK_(false));
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   752
    if (new_entry == NULL) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   753
      return false;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   754
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
    // The kernel VM adds dynamically to the end of the classloader path and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
    // doesn't reorder the bootclasspath which would break java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
    // (see PackageInfo).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
    // Add new entry to linked list
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
    if (!check_for_duplicates || !contains_entry(new_entry)) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   760
      ClassLoaderExt::add_class_path_entry(path, check_for_duplicates, new_entry);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
    }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   762
    return true;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   763
  } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   764
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   765
    if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   766
      _shared_paths_misc_info->add_nonexist_path(path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   767
    }
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   768
#endif
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   769
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
void ClassLoader::print_bootclasspath() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
  tty->print("[bootclasspath= ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
    tty->print("%s ;", e->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
void ClassLoader::load_zip_library() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  assert(ZipOpen == NULL, "should not load zip library twice");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
  // First make sure native library is loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
  os::native_java_library();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  // Load zip library
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
  char path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
  char ebuf[1024];
14471
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   790
  void* handle = NULL;
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   791
  if (os::dll_build_name(path, sizeof(path), Arguments::get_dll_dir(), "zip")) {
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   792
    handle = os::dll_load(path, ebuf, sizeof ebuf);
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   793
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  if (handle == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
    vm_exit_during_initialization("Unable to load ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  // Lookup zip entry points
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   798
  ZipOpen      = CAST_TO_FN_PTR(ZipOpen_t, os::dll_lookup(handle, "ZIP_Open"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   799
  ZipClose     = CAST_TO_FN_PTR(ZipClose_t, os::dll_lookup(handle, "ZIP_Close"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   800
  FindEntry    = CAST_TO_FN_PTR(FindEntry_t, os::dll_lookup(handle, "ZIP_FindEntry"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   801
  ReadEntry    = CAST_TO_FN_PTR(ReadEntry_t, os::dll_lookup(handle, "ZIP_ReadEntry"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   802
  ReadMappedEntry = CAST_TO_FN_PTR(ReadMappedEntry_t, os::dll_lookup(handle, "ZIP_ReadMappedEntry"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   803
  GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, os::dll_lookup(handle, "ZIP_GetNextEntry"));
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   804
  Crc32        = CAST_TO_FN_PTR(Crc32_t, os::dll_lookup(handle, "ZIP_CRC32"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  // ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   807
  if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL ||
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   808
      GetNextEntry == NULL || Crc32 == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
    vm_exit_during_initialization("Corrupted ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
  // Lookup canonicalize entry in libjava.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
  void *javalib_handle = os::native_java_library();
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   814
  CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, os::dll_lookup(javalib_handle, "Canonicalize"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
  // This lookup only works on 1.3. Do not check for non-null here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   818
int ClassLoader::crc32(int crc, const char* buf, int len) {
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   819
  assert(Crc32 != NULL, "ZIP_CRC32 is not found");
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   820
  return (*Crc32)(crc, (const jbyte*)buf, len);
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   821
}
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   822
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
// PackageInfo data exists in order to support the java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
// class.  A Package object provides information about a java package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
// (version, vendor, etc.) which originates in the manifest of the jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
// file supplying the package.  For application classes, the ClassLoader
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
// object takes care of this.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
// For system (boot) classes, the Java code in the Package class needs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
// to be able to identify which source jar file contained the boot
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
// class, so that it can extract the manifest from it.  This table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
// identifies java packages with jar files in the boot classpath.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
// Because the boot classpath cannot change, the classpath index is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
// sufficient to identify the source jar file or directory.  (Since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
// directories have no manifests, the directory name is not required,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
// but is available.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
// When using sharing -- the pathnames of entries in the boot classpath
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
// may not be the same at runtime as they were when the archive was
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
// created (NFS, Samba, etc.).  The actual files and directories named
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
// in the classpath must be the same files, in the same order, even
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
// though the exact name is not the same.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   845
class PackageInfo: public BasicHashtableEntry<mtClass> {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
  const char* _pkgname;       // Package name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
  int _classpath_index;       // Index of directory or JAR file loaded from
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
  PackageInfo* next() {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   851
    return (PackageInfo*)BasicHashtableEntry<mtClass>::next();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
  const char* pkgname()           { return _pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
  void set_pkgname(char* pkgname) { _pkgname = pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
  const char* filename() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
    return ClassLoader::classpath_entry(_classpath_index)->name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
  void set_index(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
    _classpath_index = index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   867
class PackageHashtable : public BasicHashtable<mtClass> {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
  inline unsigned int compute_hash(const char *s, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
    unsigned int val = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
    while (--n >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
      val = *s++ + 31 * val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
    return val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
  PackageInfo* bucket(int index) {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   878
    return (PackageInfo*)BasicHashtable<mtClass>::bucket(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  PackageInfo* get_entry(int index, unsigned int hash,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
                         const char* pkgname, size_t n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
    for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
      if (pp->hash() == hash &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
          strncmp(pkgname, pp->pkgname(), n) == 0 &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
          pp->pkgname()[n] == '\0') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
        return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
  PackageHashtable(int table_size)
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   895
    : BasicHashtable<mtClass>(table_size, sizeof(PackageInfo)) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   897
  PackageHashtable(int table_size, HashtableBucket<mtClass>* t, int number_of_entries)
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   898
    : BasicHashtable<mtClass>(table_size, sizeof(PackageInfo), t, number_of_entries) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
  PackageInfo* get_entry(const char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
    return get_entry(hash_to_index(hash), hash, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  PackageInfo* new_entry(char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
    PackageInfo* pp;
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   908
    pp = (PackageInfo*)BasicHashtable<mtClass>::new_entry(hash);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
    pp->set_pkgname(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
    return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
  void add_entry(PackageInfo* pp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    int index = hash_to_index(pp->hash());
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   915
    BasicHashtable<mtClass>::add_entry(index, pp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
  void copy_pkgnames(const char** packages) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
    int n = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
    for (int i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
      for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
        packages[n++] = pp->pkgname();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
    assert(n == number_of_entries(), "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   928
  CDS_ONLY(void copy_table(char** top, char* end, PackageHashtable* table);)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   931
#if INCLUDE_CDS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
void PackageHashtable::copy_table(char** top, char* end,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
                                  PackageHashtable* table) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
  // Copy (relocate) the table to the shared space.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   935
  BasicHashtable<mtClass>::copy_table(top, end);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
  // Calculate the space needed for the package name strings.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
  int i;
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   939
  intptr_t* tableSize = (intptr_t*)(*top);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   940
  *top += sizeof(intptr_t);  // For table size
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   941
  char* tableStart = *top;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
  for (i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
    for (PackageInfo* pp = table->bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
                      pp != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
                      pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
      int n1 = (int)(strlen(pp->pkgname()) + 1);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   948
      if (*top + n1 >= end) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   949
        report_out_of_shared_space(SharedMiscData);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   950
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
      pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
      *top += n1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
  *top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord));
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   956
  if (*top >= end) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   957
    report_out_of_shared_space(SharedMiscData);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   958
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   959
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   960
  // Write table size
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   961
  intptr_t len = *top - (char*)tableStart;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   962
  *tableSize = len;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
void ClassLoader::copy_package_info_buckets(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
  _package_hash_table->copy_buckets(top, end);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
void ClassLoader::copy_package_info_table(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  _package_hash_table->copy_table(top, end, _package_hash_table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
}
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   973
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
PackageInfo* ClassLoader::lookup_package(const char *pkgname) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
  const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
  if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
    // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
    int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
    return _package_hash_table->get_entry(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
  assert(pkgname != NULL, "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
  // Bootstrap loader no longer holds system loader lock obj serializing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
  // load_instance_class and thereby add_package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
    // First check for previously loaded entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    PackageInfo* pp = lookup_package(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
    if (pp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
      // Existing entry found, check source of package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
    const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
    if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
      // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
      int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
  1005
      char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
      if (new_pkgname == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
        return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
      memcpy(new_pkgname, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
      new_pkgname[n] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
      pp = _package_hash_table->new_entry(new_pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
      // Insert into hash table
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
      _package_hash_table->add_entry(pp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
oop ClassLoader::get_system_package(const char* name, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
  PackageInfo* pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
    pp = lookup_package(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
  if (pp == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
    Handle p = java_lang_String::create_from_str(pp->filename(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
    return p();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
objArrayOop ClassLoader::get_system_packages(TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
  int nof_entries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
  const char** packages;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
    // Allocate resource char* array containing package names
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
    nof_entries = _package_hash_table->number_of_entries();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
    if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
    _package_hash_table->copy_pkgnames(packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
  // Allocate objArray and fill with java.lang.String
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 3820
diff changeset
  1052
  objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
                                           nof_entries, CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
  objArrayHandle result(THREAD, r);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  for (int i = 0; i < nof_entries; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
    Handle str = java_lang_String::create_from_str(packages[i], CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
    result->obj_at_put(i, str());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
  return result();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
  1064
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  ResourceMark rm(THREAD);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1066
  const char* class_name = h_name->as_C_string();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1067
  EventMark m("loading class %s", class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
  ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
  stringStream st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
  // st.print() uses too much stack space while handling a StackOverflowError
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
  // st.print("%s.class", h_name->as_utf8());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
  st.print_raw(h_name->as_utf8());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
  st.print_raw(".class");
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1075
  const char* file_name = st.as_string();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1076
  ClassLoaderExt::Context context(class_name, file_name, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
  // Lookup stream for parsing .class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
  ClassFileStream* stream = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
  int classpath_index = 0;
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1081
  ClassPathEntry* e = NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1082
  instanceKlassHandle h;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
  {
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1084
    PerfClassTraceTime vmtimer(perf_sys_class_lookup_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1085
                               ((JavaThread*) THREAD)->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1086
                               PerfClassTraceTime::CLASS_LOAD);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1087
    e = _first_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
    while (e != NULL) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1089
      stream = e->open_stream(file_name, CHECK_NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1090
      if (!context.check(stream, classpath_index)) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1091
        return h; // NULL
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1092
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
      if (stream != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
      e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
      ++classpath_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
  if (stream != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
    // class file found, parse it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
    ClassFileParser parser(stream);
14588
8ec26d2d9339 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 14471
diff changeset
  1104
    ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
    Handle protection_domain;
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
  1106
    TempNewSymbol parsed_name = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
    instanceKlassHandle result = parser.parseClassFile(h_name,
14588
8ec26d2d9339 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 14471
diff changeset
  1108
                                                       loader_data,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
                                                       protection_domain,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
                                                       parsed_name,
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1111
                                                       context.should_verify(classpath_index),
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1112
                                                       THREAD);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1113
    if (HAS_PENDING_EXCEPTION) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1114
      ResourceMark rm;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1115
      if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1116
        tty->print_cr("Preload Error: Failed to load %s", class_name);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1117
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1118
      return h;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1119
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1120
    h = context.record_result(classpath_index, e, result, THREAD);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1121
  } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1122
    if (DumpSharedSpaces) {
27618
790a8bf5488b 8064375: Change certain errors to warnings in CDS output.
jiangli
parents: 27025
diff changeset
  1123
      tty->print_cr("Preload Warning: Cannot find %s", class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
  return h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
  1131
void ClassLoader::create_package_info_table(HashtableBucket<mtClass> *t, int length,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
                                            int number_of_entries) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
  assert(_package_hash_table == NULL, "One package info table allowed.");
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
  1134
  assert(length == package_hash_table_size * sizeof(HashtableBucket<mtClass>),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
         "bad shared package info size.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
  _package_hash_table = new PackageHashtable(package_hash_table_size, t,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
                                             number_of_entries);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
void ClassLoader::create_package_info_table() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
    assert(_package_hash_table == NULL, "shouldn't have one yet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
    _package_hash_table = new PackageHashtable(package_hash_table_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
// Initialize the class loader's access to methods in libzip.  Parse and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
// process the boot classpath into a list ClassPathEntry objects.  Once
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
// this list has been created, it must not change order (see class PackageInfo)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
// it can be appended to and is by jvmti and the kernel vm.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
void ClassLoader::initialize() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
  assert(_package_hash_table == NULL, "should have been initialized by now.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
  if (UsePerfData) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
    // jvmstat performance counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
    NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
    NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1160
    NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
    NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1162
    NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
    NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1164
    NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
    NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
    NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1167
    NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1168
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1169
    NEWPERFTICKCOUNTER(_perf_class_parse_time, SUN_CLS, "parseClassTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1170
    NEWPERFTICKCOUNTER(_perf_class_parse_selftime, SUN_CLS, "parseClassTime.self");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1171
    NEWPERFTICKCOUNTER(_perf_sys_class_lookup_time, SUN_CLS, "lookupSysClassTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1172
    NEWPERFTICKCOUNTER(_perf_shared_classload_time, SUN_CLS, "sharedClassLoadTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1173
    NEWPERFTICKCOUNTER(_perf_sys_classload_time, SUN_CLS, "sysClassLoadTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1174
    NEWPERFTICKCOUNTER(_perf_app_classload_time, SUN_CLS, "appClassLoadTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1175
    NEWPERFTICKCOUNTER(_perf_app_classload_selftime, SUN_CLS, "appClassLoadTime.self");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1176
    NEWPERFEVENTCOUNTER(_perf_app_classload_count, SUN_CLS, "appClassLoadCount");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1177
    NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1178
    NEWPERFTICKCOUNTER(_perf_define_appclass_time, SUN_CLS, "defineAppClassTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1179
    NEWPERFTICKCOUNTER(_perf_define_appclass_selftime, SUN_CLS, "defineAppClassTime.self");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1180
    NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1181
    NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1182
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
    // The following performance counters are added for measuring the impact
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
    // of the bug fix of 6365597. They are mainly focused on finding out
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
    // the behavior of system & user-defined classloader lock, whether
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
    // ClassLoader.loadClass/findClass is being called synchronized or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
    // Also two additional counters are created to see whether 'UnsyncloadClass'
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
    // flag is being set or not and how many times load_instance_class call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
    // fails with linkageError etc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
    NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
                        "systemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
    NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
                        "nonSystemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
    NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
                        "jvmFindLoadedClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
    NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
                        "jvmDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
    NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
                        "jniDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
    NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
                        "unsafeDefineClassCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
    NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
    NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
                        "loadInstanceClassFailRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
    // increment the isUnsyncloadClass counter if UnsyncloadClass is set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
    if (UnsyncloadClass) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
      _isUnsyncloadClass->inc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  // lookup zip library entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
  load_zip_library();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1218
#if INCLUDE_CDS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  // initialize search path
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1220
  if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1221
    _shared_paths_misc_info = SharedClassUtil::allocate_shared_paths_misc_info();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1222
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1223
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
  setup_bootstrap_search_path();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
  if (LazyBootClassLoader) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
    // set up meta index which makes boot classpath initialization lazier
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1227
    setup_bootstrap_meta_index();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1231
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1232
void ClassLoader::initialize_shared_path() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1233
  if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1234
    ClassLoaderExt::setup_search_paths();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1235
    _shared_paths_misc_info->write_jint(0); // see comments in SharedPathsMiscInfo::check()
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1236
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1237
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1238
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
jlong ClassLoader::classloader_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
    Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
jlong ClassLoader::class_init_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  return UsePerfData ? _perf_classes_inited->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
jlong ClassLoader::class_init_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
    Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
jlong ClassLoader::class_verify_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
    Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
jlong ClassLoader::class_link_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
  return UsePerfData ? _perf_classes_linked->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
jlong ClassLoader::class_link_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
    Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
int ClassLoader::compute_Object_vtable() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
  // hardwired for JDK1.2 -- would need to duplicate class file parsing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  // code to determine actual value from file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  // Would be value '11' if finals were in vtable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  int JDK_1_2_Object_vtable_size = 5;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
  return JDK_1_2_Object_vtable_size * vtableEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
void classLoader_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
  ClassLoader::initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1282
bool ClassLoader::get_canonical_path(const char* orig, char* out, int len) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  assert(orig != NULL && out != NULL && len > 0, "bad arguments");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
  if (CanonicalizeEntry != NULL) {
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1285
    JavaThread* THREAD = JavaThread::current();
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1286
    JNIEnv* env = THREAD->jni_environment();
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1287
    ResourceMark rm(THREAD);
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1288
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1289
    // os::native_path writes into orig_copy
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1290
    char* orig_copy = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, strlen(orig)+1);
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1291
    strcpy(orig_copy, orig);
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1292
    if ((CanonicalizeEntry)(env, os::native_path(orig_copy), out, len) < 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
    // On JDK 1.2.2 the Canonicalize does not exist, so just do nothing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
    strncpy(out, orig, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
    out[len - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
void ClassLoader::verify() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
  _package_hash_table->verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
// CompileTheWorld
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
// Iterates over all class path entries and forces compilation of all methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
// in all classes found. Currently, only zip/jar archives are searched.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
// The classes are loaded by the Java level bootstrap class loader, and the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
// initializer is called. If DelayCompilationDuringStartup is true (default),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
// the interpreter will run the initialization code. Note that forcing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
// initialization in this way could potentially lead to initialization order
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
// problems, in which case we could just force the initialization bit to be set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
// We need to iterate over the contents of a zip/jar file, so we replicate the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
// jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
// since jzfile already has a void* definition.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
// Note that this is only used in debug mode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
// HotSpot integration note:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
// Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
// JDK 1.3 version
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1333
typedef struct real_jzentry {         /* Zip file entry */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
    char *name;                 /* entry name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
    jint time;                  /* modification time */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
    jint size;                  /* size of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
    jint csize;                 /* size of compressed data (zero if uncompressed) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
    jint crc;                   /* crc of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
    char *comment;              /* optional zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
    jbyte *extra;               /* optional extra data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
    jint pos;                   /* position of LOC header (if negative) or data */
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1342
} real_jzentry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1344
typedef struct real_jzfile {  /* Zip file */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
    char *name;                 /* zip file name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
    jint refs;                  /* number of active references */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
    jint fd;                    /* open file descriptor */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
    void *lock;                 /* read lock */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
    char *comment;              /* zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
    char *msg;                  /* zip error message */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
    void *entries;              /* array of hash cells */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
    jint total;                 /* total number of entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
    unsigned short *table;      /* Hash chain heads: indexes into entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
    jint tablelen;              /* number of hash eads */
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1355
    real_jzfile *next;        /* next zip file in search list */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
    jzentry *cache;             /* we cache the most recently freed jzentry */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
    /* Information on metadata names in META-INF directory */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
    char **metanames;           /* array of meta names (may have null names) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
    jint metacount;             /* number of slots in metanames array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
    /* If there are any per-entry comments, they are in the comments array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
    char **comments;
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1362
} real_jzfile;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
  // For now we only compile all methods in all classes in zip/jar files
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
  tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
bool ClassPathDirEntry::is_rt_jar() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) {
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1376
  real_jzfile* zip = (real_jzfile*) _zip;
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1377
  tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name);
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1378
  tty->cr();
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1379
  // Iterate over all entries in zip file
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1380
  for (int n = 0; ; n++) {
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1381
    real_jzentry * ze = (real_jzentry *)((*GetNextEntry)(_zip, n));
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1382
    if (ze == NULL) break;
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1383
    ClassLoader::compile_the_world_in(ze->name, loader, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
    if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
      tty->print_cr("\nCompileTheWorld : Ran out of memory\n");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1389
      tty->print_cr("Increase class metadata storage if a limit was set");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
      tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
bool ClassPathZipEntry::is_rt_jar() {
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1397
  real_jzfile* zip = (real_jzfile*) _zip;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
  int len = (int)strlen(zip->name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
  // Check whether zip name ends in "rt.jar"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
  // This will match other archives named rt.jar as well, but this is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
  // only used for debugging.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
  return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
void LazyClassPathEntry::compile_the_world(Handle loader, TRAPS) {
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1406
  ClassPathEntry* cpe = resolve_entry(THREAD);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1407
  if (cpe != NULL) {
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1408
    cpe->compile_the_world(loader, CHECK);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1409
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
bool LazyClassPathEntry::is_rt_jar() {
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1413
  Thread* THREAD = Thread::current();
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1414
  ClassPathEntry* cpe = resolve_entry(THREAD);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1415
  return (cpe != NULL) ? cpe->is_jar_file() : false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
void ClassLoader::compile_the_world() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
  HandleMark hm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
  // Make sure we don't run with background compilation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
  BackgroundCompilation = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
  // Find bootstrap loader
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
  Handle system_class_loader (THREAD, SystemDictionary::java_system_loader());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
  // Iterate over all bootstrap class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
  ClassPathEntry* e = _first_entry;
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1428
  jlong start = os::javaTimeMillis();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
    // We stop at rt.jar, unless it is the first bootstrap path entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
    if (e->is_rt_jar() && e != _first_entry) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
    e->compile_the_world(system_class_loader, CATCH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
  }
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1435
  jlong end = os::javaTimeMillis();
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 22838
diff changeset
  1436
  tty->print_cr("CompileTheWorld : Done (%d classes, %d methods, " JLONG_FORMAT " ms)",
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1437
                _compile_the_world_class_counter, _compile_the_world_method_counter, (end - start));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
    // Print statistics as if before normal exit:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
    extern void print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
    print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
  vm_exit(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1446
int ClassLoader::_compile_the_world_class_counter = 0;
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1447
int ClassLoader::_compile_the_world_method_counter = 0;
4736
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1448
static int _codecache_sweep_counter = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1450
// Filter out all exceptions except OOMs
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1451
static void clear_pending_exception_if_not_oom(TRAPS) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1452
  if (HAS_PENDING_EXCEPTION &&
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1453
      !PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1454
    CLEAR_PENDING_EXCEPTION;
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1455
  }
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1456
  // The CHECK at the caller will propagate the exception out
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1457
}
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1458
20008
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1459
/**
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1460
 * Returns if the given method should be compiled when doing compile-the-world.
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1461
 *
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1462
 * TODO:  This should be a private method in a CompileTheWorld class.
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1463
 */
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1464
static bool can_be_compiled(methodHandle m, int comp_level) {
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1465
  assert(CompileTheWorld, "must be");
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1466
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1467
  // It's not valid to compile a native wrapper for MethodHandle methods
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1468
  // that take a MemberName appendix since the bytecode signature is not
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1469
  // correct.
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1470
  vmIntrinsics::ID iid = m->intrinsic_id();
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1471
  if (MethodHandles::is_signature_polymorphic(iid) && MethodHandles::has_member_arg(iid)) {
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1472
    return false;
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1473
  }
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1474
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1475
  return CompilationPolicy::can_be_compiled(m, comp_level);
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1476
}
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1477
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
  int len = (int)strlen(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
  if (len > 6 && strcmp(".class", name + len - 6) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
    // We have a .class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
    char buffer[2048];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
    strncpy(buffer, name, len - 6);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
    buffer[len-6] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
    // If the file has a period after removing .class, it's not really a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1486
    // valid class file.  The class loader will check everything else.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
    if (strchr(buffer, '.') == NULL) {
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1488
      _compile_the_world_class_counter++;
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1489
      if (_compile_the_world_class_counter > CompileTheWorldStopAt) return;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1490
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1491
      // Construct name without extension
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
  1492
      TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1493
      // Use loader to load and initialize class
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1494
      Klass* ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1495
      instanceKlassHandle k (THREAD, ik);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1496
      if (k.not_null() && !HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1497
        k->initialize(THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1498
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1499
      bool exception_occurred = HAS_PENDING_EXCEPTION;
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1500
      clear_pending_exception_if_not_oom(CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1501
      if (CompileTheWorldPreloadClasses && k.not_null()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1502
        ConstantPool::preload_and_initialize_all_classes(k->constants(), THREAD);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1503
        if (HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1504
          // If something went wrong in preloading we just ignore it
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1505
          clear_pending_exception_if_not_oom(CHECK);
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1506
          tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
        }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1508
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1509
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1510
      if (_compile_the_world_class_counter >= CompileTheWorldStartAt) {
8497
aa7fd2c3caa9 6725983: Assertion "method->method_holder())->is_not_initialized(),"method holder must be initialized"
never
parents: 8327
diff changeset
  1511
        if (k.is_null() || exception_occurred) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
          // If something went wrong (e.g. ExceptionInInitializerError) we skip this class
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1513
          tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
        } else {
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1515
          tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
          // Preload all classes to get around uncommon traps
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
          // Iterate over all methods in class
17126
42a942feeea2 8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents: 17004
diff changeset
  1518
          int comp_level = CompilationPolicy::policy()->initial_compile_level();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
          for (int n = 0; n < k->methods()->length(); n++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1520
            methodHandle m (THREAD, k->methods()->at(n));
20008
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1521
            if (can_be_compiled(m, comp_level)) {
4736
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1522
              if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) {
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1523
                // Give sweeper a chance to keep up with CTW
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1524
                VM_ForceSafepoint op;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1525
                VMThread::execute(&op);
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1526
                _codecache_sweep_counter = 0;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1527
              }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
              // Force compilation
17126
42a942feeea2 8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents: 17004
diff changeset
  1529
              CompileBroker::compile_method(m, InvocationEntryBci, comp_level,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
                                            methodHandle(), 0, "CTW", THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
              if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1532
                clear_pending_exception_if_not_oom(CHECK);
20008
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1533
                tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string());
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1534
              } else {
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1535
                _compile_the_world_method_counter++;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
              }
10250
0794cd144834 7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents: 8921
diff changeset
  1537
              if (TieredCompilation && TieredStopAtLevel >= CompLevel_full_optimization) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1538
                // Clobber the first compile and force second tier compilation
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1539
                nmethod* nm = m->code();
26581
cb21ee34883d 8057750: CTW should not make MH intrinsics not entrant
iveresov
parents: 26135
diff changeset
  1540
                if (nm != NULL && !m->is_method_handle_intrinsic()) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1541
                  // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1542
                  nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1543
                  m->clear_code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1544
                }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5924
diff changeset
  1545
                CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_full_optimization,
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1546
                                              methodHandle(), 0, "CTW", THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1547
                if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1548
                  clear_pending_exception_if_not_oom(CHECK);
20008
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1549
                  tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string());
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1550
                } else {
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1551
                  _compile_the_world_method_counter++;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1552
                }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
              }
20008
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1554
            } else {
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1555
              tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
            }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1557
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1558
            nmethod* nm = m->code();
26581
cb21ee34883d 8057750: CTW should not make MH intrinsics not entrant
iveresov
parents: 26135
diff changeset
  1559
            if (nm != NULL && !m->is_method_handle_intrinsic()) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1560
              // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1561
              nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1562
              m->clear_code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1568
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1569
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1571
#endif //PRODUCT
7910
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1572
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1573
// Please keep following two functions at end of this file. With them placed at top or in middle of the file,
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1574
// they could get inlined by agressive compiler, an unknown trick, see bug 6966589.
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1575
void PerfClassTraceTime::initialize() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1576
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1577
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1578
  if (_eventp != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1579
    // increment the event counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1580
    _eventp->inc();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1581
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1582
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1583
  // stop the current active thread-local timer to measure inclusive time
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1584
  _prev_active_event = -1;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1585
  for (int i=0; i < EVENT_TYPE_COUNT; i++) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1586
     if (_timers[i].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1587
       assert(_prev_active_event == -1, "should have only one active timer");
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1588
       _prev_active_event = i;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1589
       _timers[i].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1590
     }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1591
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1592
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1593
  if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1594
    // start the inclusive timer if not recursively called
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1595
    _t.start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1596
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1597
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1598
  // start thread-local timer of the given event type
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1599
   if (!_timers[_event_type].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1600
    _timers[_event_type].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1601
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1602
}
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1603
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1604
PerfClassTraceTime::~PerfClassTraceTime() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1605
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1606
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1607
  // stop the thread-local timer as the event completes
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1608
  // and resume the thread-local timer of the event next on the stack
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1609
  _timers[_event_type].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1610
  jlong selftime = _timers[_event_type].ticks();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1611
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1612
  if (_prev_active_event >= 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1613
    _timers[_prev_active_event].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1614
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1615
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1616
  if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1617
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1618
  // increment the counters only on the leaf call
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1619
  _t.stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1620
  _timep->inc(_t.ticks());
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1621
  if (_selftimep != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1622
    _selftimep->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1623
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1624
  // add all class loading related event selftime to the accumulated time counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1625
  ClassLoader::perf_accumulated_time()->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1626
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1627
  // reset the timer
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1628
  _timers[_event_type].reset();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1629
}