hotspot/src/share/vm/classfile/classLoader.cpp
author zgu
Mon, 11 Aug 2014 10:18:09 -0700
changeset 25949 34557722059b
parent 25468 5331df506290
child 26135 82b516c550f7
permissions -rw-r--r--
6424123: JVM crashes on failed 'strdup' call Summary: Calling os::malloc()/os::strdup() and new os::strdup_check_oom() instead of ::malloc()/::strdup() for native memory tracking purpose Reviewed-by: coleenp, ctornqvi, kvn
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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/classLoaderData.inline.hpp"
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#include "classfile/javaClasses.hpp"
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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/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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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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// 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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PackageHashtable* ClassLoader::_package_hash_table = NULL;
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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, mtClass);
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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(char* dir) : ClassPathEntry() {
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  _dir = NEW_C_HEAP_ARRAY(char, strlen(dir)+1, mtClass);
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  strcpy(_dir, dir);
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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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    // 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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  _zip_name = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1, mtClass);
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  strcpy(_zip_name, zip_name);
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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, mtClass);
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}
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ClassFileStream* ClassPathZipEntry::open_stream(const char* name, 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 filesize, 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 class in mmaped jar file.
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  if (ReadMappedEntry == NULL ||
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      !(*ReadMappedEntry)(_zip, entry, &buffer, filename)) {
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      // mmaped access not available, perhaps due to compression,
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      // read contents into resource array
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      buffer     = NEW_RESOURCE_ARRAY(u1, filesize);
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      if (!(*ReadEntry)(_zip, entry, buffer, filename)) 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 result
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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(char* path, const struct stat* st) : 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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}
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LazyClassPathEntry::~LazyClassPathEntry() {
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  os::free(_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, CHECK_NULL);
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  {
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    ThreadCritical tc;
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    if (_resolved_entry == NULL) {
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      _resolved_entry = new_entry;
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      return new_entry;
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    }
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  }
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  assert(_resolved_entry != NULL, "bug in MT-safe resolution logic");
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  delete new_entry;
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  return (ClassPathEntry*) _resolved_entry;
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}
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ClassFileStream* LazyClassPathEntry::open_stream(const char* name, TRAPS) {
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  if (_meta_index != NULL &&
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      !_meta_index->may_contain(name)) {
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    return NULL;
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  }
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  if (_has_error) {
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    return NULL;
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  }
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  ClassPathEntry* cpe = resolve_entry(THREAD);
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  if (cpe == NULL) {
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    _has_error = true;
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    return NULL;
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  } else {
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    return cpe->open_stream(name, THREAD);
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  }
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}
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bool LazyClassPathEntry::is_lazy() {
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  return true;
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}
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static void print_meta_index(LazyClassPathEntry* entry,
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                             GrowableArray<char*>& meta_packages) {
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  tty->print("[Meta index for %s=", entry->name());
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  for (int i = 0; i < meta_packages.length(); i++) {
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    if (i > 0) tty->print(" ");
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    tty->print("%s", meta_packages.at(i));
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  }
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  tty->print_cr("]");
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}
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void ClassLoader::setup_meta_index() {
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  // Set up meta index which allows us to open boot jars lazily if
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  // class data sharing is enabled
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  const char* known_version = "% VERSION 2";
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  char* meta_index_path = Arguments::get_meta_index_path();
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  char* meta_index_dir  = Arguments::get_meta_index_dir();
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  FILE* file = fopen(meta_index_path, "r");
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   348
  int line_no = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
  if (file != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
    LazyClassPathEntry* cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
    GrowableArray<char*> boot_class_path_packages(10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
    char package_name[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
    bool skipCurrentJar = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
    while (fgets(package_name, sizeof(package_name), file) != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
      ++line_no;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
      // Remove trailing newline
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
      package_name[strlen(package_name) - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
      switch(package_name[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
        case '%':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   362
          if ((line_no == 1) && (strcmp(package_name, known_version) != 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   363
            if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
              tty->print("[Unsupported meta index version]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   365
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
            fclose(file);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
            return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
        // These directives indicate jar files which contain only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
        // classes, only non-classfile resources, or a combination of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
        // the two. See src/share/classes/sun/misc/MetaIndex.java and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
        // make/tools/MetaIndex/BuildMetaIndex.java in the J2SE
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
        // workspace.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
        case '#':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
        case '!':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
        case '@':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
          // Hand off current packages to current lazy entry (if any)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
          if ((cur_entry != NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
              (boot_class_path_packages.length() > 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
            if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
              print_meta_index(cur_entry, boot_class_path_packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
            MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
                                             boot_class_path_packages.length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
            cur_entry->set_meta_index(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
          cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
          boot_class_path_packages.clear();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
          // Find lazy entry corresponding to this jar file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
          for (ClassPathEntry* entry = _first_entry; entry != NULL; entry = entry->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
            if (entry->is_lazy() &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
                string_starts_with(entry->name(), meta_index_dir) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
                string_ends_with(entry->name(), &package_name[2])) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
              cur_entry = (LazyClassPathEntry*) entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
          // If the first character is '@', it indicates the following jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
          // file is a resource only jar file in which case, we should skip
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
          // reading the subsequent entries since the resource loading is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
          // totally handled by J2SE side.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
          if (package_name[0] == '@') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
            if (cur_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
              cur_entry->set_meta_index(new MetaIndex(NULL, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
            cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
            skipCurrentJar = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
          } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
            skipCurrentJar = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
          break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
        default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
          if (!skipCurrentJar && cur_entry != NULL) {
25949
34557722059b 6424123: JVM crashes on failed 'strdup' call
zgu
parents: 25468
diff changeset
   423
            char* new_name = os::strdup_check_oom(package_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
            boot_class_path_packages.append(new_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
    // Hand off current packages to current lazy entry (if any)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
    if ((cur_entry != NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
        (boot_class_path_packages.length() > 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
      if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
        print_meta_index(cur_entry, boot_class_path_packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
      MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
                                       boot_class_path_packages.length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
      cur_entry->set_meta_index(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
    fclose(file);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
void ClassLoader::setup_bootstrap_search_path() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  assert(_first_entry == NULL, "should not setup bootstrap class search path twice");
25949
34557722059b 6424123: JVM crashes on failed 'strdup' call
zgu
parents: 25468
diff changeset
   445
  char* sys_class_path = os::strdup_check_oom(Arguments::get_sysclasspath());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
    tty->print_cr("[Bootstrap loader class path=%s]", sys_class_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
  int len = (int)strlen(sys_class_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  int end = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  // Iterate over class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
  for (int start = 0; start < len; start = end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
    while (sys_class_path[end] && sys_class_path[end] != os::path_separator()[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    }
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   458
    char* path = NEW_C_HEAP_ARRAY(char, end-start+1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    strncpy(path, &sys_class_path[start], end-start);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
    path[end-start] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
    update_class_path_entry_list(path, false);
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   462
    FREE_C_HEAP_ARRAY(char, path, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
    while (sys_class_path[end] == os::path_separator()[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  }
25949
34557722059b 6424123: JVM crashes on failed 'strdup' call
zgu
parents: 25468
diff changeset
   467
  os::free(sys_class_path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   470
ClassPathEntry* ClassLoader::create_class_path_entry(char *path, const struct stat* st, bool lazy, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  if (lazy) {
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   473
    return new LazyClassPathEntry(path, st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   475
  ClassPathEntry* new_entry = NULL;
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   476
  if ((st->st_mode & S_IFREG) == S_IFREG) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
    // Regular file, should be a zip file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
    // Canonicalized filename
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
    char canonical_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
    if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
      // This matches the classic VM
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   482
      THROW_MSG_(vmSymbols::java_io_IOException(), "Bad pathname", NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
    char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
    jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
      // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
      ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
      HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
      zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
    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
   493
      new_entry = new ClassPathZipEntry(zip, path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
      if (TraceClassLoading) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
        tty->print_cr("[Opened %s]", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
      ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
      char *msg;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
      if (error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
        msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
        jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
        int len = (int)(strlen(path) + strlen(error_msg) + 128);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
        msg = NEW_RESOURCE_ARRAY(char, len); ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
        jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
      }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   508
      THROW_MSG_(vmSymbols::java_lang_ClassNotFoundException(), msg, NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
    // Directory
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   512
    new_entry = new ClassPathDirEntry(path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    if (TraceClassLoading) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
      tty->print_cr("[Path %s]", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   517
  return new_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
// Create a class path zip entry for a given path (return NULL if not found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
// or zip/JAR file cannot be opened)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  // check for a regular file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  if (os::stat(path, &st) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
    if ((st.st_mode & S_IFREG) == S_IFREG) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
      char orig_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
      char canonical_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
      strcpy(orig_path, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
      if (get_canonical_path(orig_path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
        char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
        jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
          // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
          JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
          ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
          HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
          zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
        if (zip != NULL && error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
          // create using canonical path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
          return new ClassPathZipEntry(zip, canonical_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
// returns true if entry already on class path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
bool ClassLoader::contains_entry(ClassPathEntry *entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
    // assume zip entries have been canonicalized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
    if (strcmp(entry->name(), e->name()) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
void ClassLoader::add_to_list(ClassPathEntry *new_entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
  if (new_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
    if (_last_entry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
      _first_entry = _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
      _last_entry->set_next(new_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
      _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   576
void ClassLoader::update_class_path_entry_list(char *path,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
                                               bool check_for_duplicates) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  struct stat st;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   579
  if (os::stat(path, &st) == 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
    // File or directory found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
    ClassPathEntry* new_entry = NULL;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   582
    Thread* THREAD = Thread::current();
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   583
    new_entry = create_class_path_entry(path, &st, LazyBootClassLoader, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
    // The kernel VM adds dynamically to the end of the classloader path and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
    // doesn't reorder the bootclasspath which would break java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
    // (see PackageInfo).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
    // Add new entry to linked list
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
    if (!check_for_duplicates || !contains_entry(new_entry)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
      add_to_list(new_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
void ClassLoader::print_bootclasspath() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  tty->print("[bootclasspath= ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
    tty->print("%s ;", e->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
void ClassLoader::load_zip_library() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
  assert(ZipOpen == NULL, "should not load zip library twice");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  // First make sure native library is loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  os::native_java_library();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  // Load zip library
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  char path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  char ebuf[1024];
14471
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   611
  void* handle = NULL;
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   612
  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
   613
    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
   614
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  if (handle == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
    vm_exit_during_initialization("Unable to load ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  // Lookup zip entry points
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   619
  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
   620
  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
   621
  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
   622
  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
   623
  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
   624
  GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, os::dll_lookup(handle, "ZIP_GetNextEntry"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
  // ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL || GetNextEntry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
    vm_exit_during_initialization("Corrupted ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
  // Lookup canonicalize entry in libjava.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  void *javalib_handle = os::native_java_library();
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   633
  CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, os::dll_lookup(javalib_handle, "Canonicalize"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  // This lookup only works on 1.3. Do not check for non-null here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
// PackageInfo data exists in order to support the java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
// class.  A Package object provides information about a java package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
// (version, vendor, etc.) which originates in the manifest of the jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
// file supplying the package.  For application classes, the ClassLoader
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
// object takes care of this.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
// For system (boot) classes, the Java code in the Package class needs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
// to be able to identify which source jar file contained the boot
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
// class, so that it can extract the manifest from it.  This table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
// identifies java packages with jar files in the boot classpath.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
// Because the boot classpath cannot change, the classpath index is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
// sufficient to identify the source jar file or directory.  (Since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
// directories have no manifests, the directory name is not required,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
// but is available.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
// When using sharing -- the pathnames of entries in the boot classpath
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
// may not be the same at runtime as they were when the archive was
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
// created (NFS, Samba, etc.).  The actual files and directories named
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
// in the classpath must be the same files, in the same order, even
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
// though the exact name is not the same.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   659
class PackageInfo: public BasicHashtableEntry<mtClass> {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
  const char* _pkgname;       // Package name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  int _classpath_index;       // Index of directory or JAR file loaded from
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
  PackageInfo* next() {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   665
    return (PackageInfo*)BasicHashtableEntry<mtClass>::next();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
  const char* pkgname()           { return _pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
  void set_pkgname(char* pkgname) { _pkgname = pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
  const char* filename() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
    return ClassLoader::classpath_entry(_classpath_index)->name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
  void set_index(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
    _classpath_index = index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   681
class PackageHashtable : public BasicHashtable<mtClass> {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
  inline unsigned int compute_hash(const char *s, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
    unsigned int val = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    while (--n >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
      val = *s++ + 31 * val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
    return val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
  PackageInfo* bucket(int index) {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   692
    return (PackageInfo*)BasicHashtable<mtClass>::bucket(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  PackageInfo* get_entry(int index, unsigned int hash,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
                         const char* pkgname, size_t n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
    for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
      if (pp->hash() == hash &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
          strncmp(pkgname, pp->pkgname(), n) == 0 &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
          pp->pkgname()[n] == '\0') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
        return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
  PackageHashtable(int table_size)
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   709
    : BasicHashtable<mtClass>(table_size, sizeof(PackageInfo)) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   711
  PackageHashtable(int table_size, HashtableBucket<mtClass>* t, int number_of_entries)
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   712
    : BasicHashtable<mtClass>(table_size, sizeof(PackageInfo), t, number_of_entries) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  PackageInfo* get_entry(const char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
    return get_entry(hash_to_index(hash), hash, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
  PackageInfo* new_entry(char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    PackageInfo* pp;
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   722
    pp = (PackageInfo*)BasicHashtable<mtClass>::new_entry(hash);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
    pp->set_pkgname(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
  void add_entry(PackageInfo* pp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
    int index = hash_to_index(pp->hash());
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   729
    BasicHashtable<mtClass>::add_entry(index, pp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
  void copy_pkgnames(const char** packages) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
    int n = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    for (int i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
      for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
        packages[n++] = pp->pkgname();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
    assert(n == number_of_entries(), "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  void copy_table(char** top, char* end, PackageHashtable* table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
void PackageHashtable::copy_table(char** top, char* end,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
                                  PackageHashtable* table) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
  // Copy (relocate) the table to the shared space.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   749
  BasicHashtable<mtClass>::copy_table(top, end);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  // Calculate the space needed for the package name strings.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
  int i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
  int n = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  for (i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
    for (PackageInfo* pp = table->bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
                      pp != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
                      pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
      n += (int)(strlen(pp->pkgname()) + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  if (*top + n + sizeof(intptr_t) >= end) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   762
    report_out_of_shared_space(SharedMiscData);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
  // Copy the table data (the strings) to the shared space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
  n = align_size_up(n, sizeof(HeapWord));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  *(intptr_t*)(*top) = n;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
  *top += sizeof(intptr_t);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
  for (i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
    for (PackageInfo* pp = table->bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
                      pp != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
                      pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
      int n1 = (int)(strlen(pp->pkgname()) + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
      pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
      *top += n1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
  *top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
}
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::copy_package_info_buckets(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  _package_hash_table->copy_buckets(top, end);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
void ClassLoader::copy_package_info_table(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
  _package_hash_table->copy_table(top, end, _package_hash_table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
PackageInfo* ClassLoader::lookup_package(const char *pkgname) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
    // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
    int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
    return _package_hash_table->get_entry(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
  assert(pkgname != NULL, "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
  // Bootstrap loader no longer holds system loader lock obj serializing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  // load_instance_class and thereby add_package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
    // First check for previously loaded entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
    PackageInfo* pp = lookup_package(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
    if (pp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
      // Existing entry found, check source of package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
    const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
    if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
      // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
      int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   822
      char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
      if (new_pkgname == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
        return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
      memcpy(new_pkgname, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
      new_pkgname[n] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
      pp = _package_hash_table->new_entry(new_pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
      // Insert into hash table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
      _package_hash_table->add_entry(pp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
oop ClassLoader::get_system_package(const char* name, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
  PackageInfo* pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    pp = lookup_package(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  if (pp == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
    Handle p = java_lang_String::create_from_str(pp->filename(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
    return p();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
objArrayOop ClassLoader::get_system_packages(TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
  int nof_entries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
  const char** packages;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
    // Allocate resource char* array containing package names
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
    nof_entries = _package_hash_table->number_of_entries();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
    if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    _package_hash_table->copy_pkgnames(packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
  // Allocate objArray and fill with java.lang.String
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 3820
diff changeset
   869
  objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
                                           nof_entries, CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
  objArrayHandle result(THREAD, r);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
  for (int i = 0; i < nof_entries; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
    Handle str = java_lang_String::create_from_str(packages[i], CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
    result->obj_at_put(i, str());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
  return result();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   881
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
  ResourceMark rm(THREAD);
19158
9c755bf7cae5 8021301: better event messages
anoll
parents: 17126
diff changeset
   883
  EventMark m("loading class %s", h_name->as_C_string());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
  ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
  stringStream st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
  // st.print() uses too much stack space while handling a StackOverflowError
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
  // st.print("%s.class", h_name->as_utf8());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
  st.print_raw(h_name->as_utf8());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
  st.print_raw(".class");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
  char* name = st.as_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
  // Lookup stream for parsing .class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
  ClassFileStream* stream = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
  int classpath_index = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
  {
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   897
    PerfClassTraceTime vmtimer(perf_sys_class_lookup_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   898
                               ((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
   899
                               PerfClassTraceTime::CLASS_LOAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
    ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
    while (e != NULL) {
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   902
      stream = e->open_stream(name, CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
      if (stream != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
      e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
      ++classpath_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   911
  instanceKlassHandle h;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
  if (stream != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    // class file found, parse it
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
    ClassFileParser parser(stream);
14588
8ec26d2d9339 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 14471
diff changeset
   916
    ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
    Handle protection_domain;
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   918
    TempNewSymbol parsed_name = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
    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
   920
                                                       loader_data,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
                                                       protection_domain,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
                                                       parsed_name,
3820
0a8fbbe180db 6830542: Performance: JVM_DefineClass already verified.
acorn
parents: 3582
diff changeset
   923
                                                       false,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
                                                       CHECK_(h));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
    // add to package table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
    if (add_package(name, classpath_index, THREAD)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
      h = result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
  return h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   936
void ClassLoader::create_package_info_table(HashtableBucket<mtClass> *t, int length,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
                                            int number_of_entries) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
  assert(_package_hash_table == NULL, "One package info table allowed.");
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   939
  assert(length == package_hash_table_size * sizeof(HashtableBucket<mtClass>),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
         "bad shared package info size.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
  _package_hash_table = new PackageHashtable(package_hash_table_size, t,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
                                             number_of_entries);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
void ClassLoader::create_package_info_table() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
    assert(_package_hash_table == NULL, "shouldn't have one yet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
    _package_hash_table = new PackageHashtable(package_hash_table_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
// Initialize the class loader's access to methods in libzip.  Parse and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
// process the boot classpath into a list ClassPathEntry objects.  Once
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
// this list has been created, it must not change order (see class PackageInfo)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
// it can be appended to and is by jvmti and the kernel vm.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
void ClassLoader::initialize() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
  assert(_package_hash_table == NULL, "should have been initialized by now.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
  if (UsePerfData) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
    // jvmstat performance counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
    NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
    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
   965
    NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
    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
   967
    NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
    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
   969
    NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
    NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
    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
   972
    NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   973
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   974
    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
   975
    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
   976
    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
   977
    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
   978
    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
   979
    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
   980
    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
   981
    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
   982
    NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   983
    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
   984
    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
   985
    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
   986
    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
   987
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
    // The following performance counters are added for measuring the impact
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
    // of the bug fix of 6365597. They are mainly focused on finding out
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
    // the behavior of system & user-defined classloader lock, whether
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
    // ClassLoader.loadClass/findClass is being called synchronized or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    // Also two additional counters are created to see whether 'UnsyncloadClass'
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
    // flag is being set or not and how many times load_instance_class call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
    // fails with linkageError etc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
    NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
                        "systemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
    NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
                        "nonSystemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
    NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
                        "jvmFindLoadedClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
    NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
                        "jvmDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
    NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
                        "jniDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
    NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
                        "unsafeDefineClassCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
    NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
    NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
                        "loadInstanceClassFailRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
    // increment the isUnsyncloadClass counter if UnsyncloadClass is set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
    if (UnsyncloadClass) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
      _isUnsyncloadClass->inc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
  // lookup zip library entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
  load_zip_library();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
  // initialize search path
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
  setup_bootstrap_search_path();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
  if (LazyBootClassLoader) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
    // set up meta index which makes boot classpath initialization lazier
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
    setup_meta_index();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
jlong ClassLoader::classloader_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
    Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
jlong ClassLoader::class_init_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
  return UsePerfData ? _perf_classes_inited->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
jlong ClassLoader::class_init_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
    Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
jlong ClassLoader::class_verify_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
    Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
jlong ClassLoader::class_link_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
  return UsePerfData ? _perf_classes_linked->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
jlong ClassLoader::class_link_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
    Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
int ClassLoader::compute_Object_vtable() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
  // hardwired for JDK1.2 -- would need to duplicate class file parsing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
  // code to determine actual value from file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
  // Would be value '11' if finals were in vtable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
  int JDK_1_2_Object_vtable_size = 5;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  return JDK_1_2_Object_vtable_size * vtableEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
void classLoader_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
  ClassLoader::initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
bool ClassLoader::get_canonical_path(char* orig, char* out, int len) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
  assert(orig != NULL && out != NULL && len > 0, "bad arguments");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
  if (CanonicalizeEntry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
    JNIEnv* env = JavaThread::current()->jni_environment();
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1078
    if ((CanonicalizeEntry)(env, os::native_path(orig), out, len) < 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
    // On JDK 1.2.2 the Canonicalize does not exist, so just do nothing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
    strncpy(out, orig, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
    out[len - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
void ClassLoader::verify() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
  _package_hash_table->verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
// CompileTheWorld
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
// Iterates over all class path entries and forces compilation of all methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
// in all classes found. Currently, only zip/jar archives are searched.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
// The classes are loaded by the Java level bootstrap class loader, and the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
// initializer is called. If DelayCompilationDuringStartup is true (default),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
// the interpreter will run the initialization code. Note that forcing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
// initialization in this way could potentially lead to initialization order
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
// problems, in which case we could just force the initialization bit to be set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
// We need to iterate over the contents of a zip/jar file, so we replicate the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
// jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
// since jzfile already has a void* definition.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
// Note that this is only used in debug mode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
// HotSpot integration note:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
// Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
// JDK 1.3 version
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1119
typedef struct real_jzentry {         /* Zip file entry */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
    char *name;                 /* entry name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
    jint time;                  /* modification time */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
    jint size;                  /* size of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
    jint csize;                 /* size of compressed data (zero if uncompressed) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
    jint crc;                   /* crc of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
    char *comment;              /* optional zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
    jbyte *extra;               /* optional extra data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
    jint pos;                   /* position of LOC header (if negative) or data */
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1128
} real_jzentry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1130
typedef struct real_jzfile {  /* Zip file */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
    char *name;                 /* zip file name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
    jint refs;                  /* number of active references */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
    jint fd;                    /* open file descriptor */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
    void *lock;                 /* read lock */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
    char *comment;              /* zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
    char *msg;                  /* zip error message */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
    void *entries;              /* array of hash cells */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
    jint total;                 /* total number of entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
    unsigned short *table;      /* Hash chain heads: indexes into entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
    jint tablelen;              /* number of hash eads */
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1141
    real_jzfile *next;        /* next zip file in search list */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
    jzentry *cache;             /* we cache the most recently freed jzentry */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
    /* Information on metadata names in META-INF directory */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
    char **metanames;           /* array of meta names (may have null names) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
    jint metacount;             /* number of slots in metanames array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
    /* If there are any per-entry comments, they are in the comments array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
    char **comments;
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1148
} real_jzfile;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
  // For now we only compile all methods in all classes in zip/jar files
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
  tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
bool ClassPathDirEntry::is_rt_jar() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) {
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1162
  real_jzfile* zip = (real_jzfile*) _zip;
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1163
  tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name);
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1164
  tty->cr();
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1165
  // Iterate over all entries in zip file
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1166
  for (int n = 0; ; n++) {
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1167
    real_jzentry * ze = (real_jzentry *)((*GetNextEntry)(_zip, n));
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1168
    if (ze == NULL) break;
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1169
    ClassLoader::compile_the_world_in(ze->name, loader, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
    if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
      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
  1175
      tty->print_cr("Increase class metadata storage if a limit was set");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
      tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
bool ClassPathZipEntry::is_rt_jar() {
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1183
  real_jzfile* zip = (real_jzfile*) _zip;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  int len = (int)strlen(zip->name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
  // Check whether zip name ends in "rt.jar"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
  // This will match other archives named rt.jar as well, but this is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
  // only used for debugging.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
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
  1192
  ClassPathEntry* cpe = resolve_entry(THREAD);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1193
  if (cpe != NULL) {
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1194
    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
  1195
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
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
  1199
  Thread* THREAD = Thread::current();
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1200
  ClassPathEntry* cpe = resolve_entry(THREAD);
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
  1201
  return (cpe != NULL) ? cpe->is_jar_file() : false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
void ClassLoader::compile_the_world() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
  HandleMark hm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  // Make sure we don't run with background compilation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
  BackgroundCompilation = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
  // Find bootstrap loader
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
  Handle system_class_loader (THREAD, SystemDictionary::java_system_loader());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
  // Iterate over all bootstrap class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
  ClassPathEntry* e = _first_entry;
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1214
  jlong start = os::javaTimeMillis();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
    // We stop at rt.jar, unless it is the first bootstrap path entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
    if (e->is_rt_jar() && e != _first_entry) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
    e->compile_the_world(system_class_loader, CATCH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  }
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1221
  jlong end = os::javaTimeMillis();
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 22838
diff changeset
  1222
  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
  1223
                _compile_the_world_class_counter, _compile_the_world_method_counter, (end - start));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
    // Print statistics as if before normal exit:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
    extern void print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
    print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
  vm_exit(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1232
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
  1233
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
  1234
static int _codecache_sweep_counter = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1236
// Filter out all exceptions except OOMs
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1237
static void clear_pending_exception_if_not_oom(TRAPS) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1238
  if (HAS_PENDING_EXCEPTION &&
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1239
      !PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1240
    CLEAR_PENDING_EXCEPTION;
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1241
  }
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1242
  // The CHECK at the caller will propagate the exception out
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1243
}
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1244
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
  1245
/**
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1246
 * 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
  1247
 *
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1248
 * 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
  1249
 */
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1250
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
  1251
  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
  1252
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1253
  // 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
  1254
  // 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
  1255
  // 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
  1256
  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
  1257
  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
  1258
    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
  1259
  }
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1260
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1261
  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
  1262
}
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1263
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  int len = (int)strlen(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
  if (len > 6 && strcmp(".class", name + len - 6) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
    // We have a .class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
    char buffer[2048];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
    strncpy(buffer, name, len - 6);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
    buffer[len-6] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
    // If the file has a period after removing .class, it's not really a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
    // valid class file.  The class loader will check everything else.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
    if (strchr(buffer, '.') == NULL) {
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1274
      _compile_the_world_class_counter++;
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1275
      if (_compile_the_world_class_counter > CompileTheWorldStopAt) return;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1276
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1277
      // Construct name without extension
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
  1278
      TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1279
      // Use loader to load and initialize class
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1280
      Klass* ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1281
      instanceKlassHandle k (THREAD, ik);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1282
      if (k.not_null() && !HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1283
        k->initialize(THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1284
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1285
      bool exception_occurred = HAS_PENDING_EXCEPTION;
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1286
      clear_pending_exception_if_not_oom(CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1287
      if (CompileTheWorldPreloadClasses && k.not_null()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1288
        ConstantPool::preload_and_initialize_all_classes(k->constants(), THREAD);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1289
        if (HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1290
          // If something went wrong in preloading we just ignore it
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1291
          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
  1292
          tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
        }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1294
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1295
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1296
      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
  1297
        if (k.is_null() || exception_occurred) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
          // 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
  1299
          tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
        } else {
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1301
          tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
          // Preload all classes to get around uncommon traps
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
          // Iterate over all methods in class
17126
42a942feeea2 8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents: 17004
diff changeset
  1304
          int comp_level = CompilationPolicy::policy()->initial_compile_level();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
          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
  1306
            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
  1307
            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
  1308
              if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) {
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1309
                // 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
  1310
                VM_ForceSafepoint op;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1311
                VMThread::execute(&op);
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1312
                _codecache_sweep_counter = 0;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1313
              }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
              // Force compilation
17126
42a942feeea2 8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents: 17004
diff changeset
  1315
              CompileBroker::compile_method(m, InvocationEntryBci, comp_level,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
                                            methodHandle(), 0, "CTW", THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
              if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1318
                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
  1319
                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
  1320
              } else {
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1321
                _compile_the_world_method_counter++;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
              }
10250
0794cd144834 7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents: 8921
diff changeset
  1323
              if (TieredCompilation && TieredStopAtLevel >= CompLevel_full_optimization) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1324
                // Clobber the first compile and force second tier compilation
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1325
                nmethod* nm = m->code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1326
                if (nm != NULL) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1327
                  // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1328
                  nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1329
                  m->clear_code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1330
                }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5924
diff changeset
  1331
                CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_full_optimization,
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1332
                                              methodHandle(), 0, "CTW", THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1333
                if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1334
                  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
  1335
                  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
  1336
                } else {
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1337
                  _compile_the_world_method_counter++;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1338
                }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
              }
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
  1340
            } 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
  1341
              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
  1342
            }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1343
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1344
            nmethod* nm = m->code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1345
            if (nm != NULL) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1346
              // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1347
              nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1348
              m->clear_code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
#endif //PRODUCT
7910
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1358
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1359
// 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
  1360
// 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
  1361
void PerfClassTraceTime::initialize() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1362
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1363
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1364
  if (_eventp != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1365
    // increment the event counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1366
    _eventp->inc();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1367
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1368
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1369
  // stop the current active thread-local timer to measure inclusive time
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1370
  _prev_active_event = -1;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1371
  for (int i=0; i < EVENT_TYPE_COUNT; i++) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1372
     if (_timers[i].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1373
       assert(_prev_active_event == -1, "should have only one active timer");
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1374
       _prev_active_event = i;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1375
       _timers[i].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1376
     }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1377
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1378
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1379
  if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1380
    // start the inclusive timer if not recursively called
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1381
    _t.start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1382
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1383
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1384
  // start thread-local timer of the given event type
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1385
   if (!_timers[_event_type].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1386
    _timers[_event_type].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1387
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1388
}
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1389
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1390
PerfClassTraceTime::~PerfClassTraceTime() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1391
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1392
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1393
  // stop the thread-local timer as the event completes
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1394
  // 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
  1395
  _timers[_event_type].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1396
  jlong selftime = _timers[_event_type].ticks();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1397
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1398
  if (_prev_active_event >= 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1399
    _timers[_prev_active_event].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1400
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1401
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1402
  if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1403
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1404
  // increment the counters only on the leaf call
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1405
  _t.stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1406
  _timep->inc(_t.ticks());
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1407
  if (_selftimep != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1408
    _selftimep->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1409
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1410
  // 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
  1411
  ClassLoader::perf_accumulated_time()->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1412
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1413
  // reset the timer
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1414
  _timers[_event_type].reset();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1415
}