hotspot/src/share/vm/classfile/classLoader.cpp
author mockner
Wed, 03 Feb 2016 11:40:30 -0500
changeset 35917 463d67f86eaa
parent 35498 392b50de06c6
child 36364 5971776598e5
permissions -rw-r--r--
8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging. Summary: TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData have been reimplemented using Unified logging. Reviewed-by: iklam, coleenp, dholmes, jiangli, hseigel, rprotacio Contributed-by: max.ockner@oracle.com, ioi.lam@oracle.com
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/*
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 * Copyright (c) 1997, 2016, 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/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/classLoaderExt.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/jimage.hpp"
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#include "classfile/klassFactory.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/shared/collectedHeap.inline.hpp"
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#include "gc/shared/generation.hpp"
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#include "interpreter/bytecodeStream.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/filemap.hpp"
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#include "memory/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/objArrayOop.inline.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 "runtime/vm_version.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.inline.hpp"
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#include "utilities/macros.hpp"
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#if INCLUDE_CDS
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#include "classfile/sharedClassUtil.hpp"
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#include "classfile/sharedPathsMiscInfo.hpp"
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#endif
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// Entry points in zip.dll for loading zip/jar file entries
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typedef void * * (JNICALL *ZipOpen_t)(const char *name, char **pmsg);
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typedef void (JNICALL *ZipClose_t)(jzfile *zip);
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typedef jzentry* (JNICALL *FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen);
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typedef jboolean (JNICALL *ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf);
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typedef jboolean (JNICALL *ReadMappedEntry_t)(jzfile *zip, jzentry *entry, unsigned char **buf, char *namebuf);
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typedef jzentry* (JNICALL *GetNextEntry_t)(jzfile *zip, jint n);
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typedef jboolean (JNICALL *ZipInflateFully_t)(void *inBuf, jlong inLen, void *outBuf, jlong outLen, char **pmsg);
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typedef jint     (JNICALL *Crc32_t)(jint crc, const jbyte *buf, jint len);
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static ZipOpen_t         ZipOpen            = NULL;
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static ZipClose_t        ZipClose           = NULL;
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static FindEntry_t       FindEntry          = NULL;
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static ReadEntry_t       ReadEntry          = NULL;
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static ReadMappedEntry_t ReadMappedEntry    = NULL;
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static GetNextEntry_t    GetNextEntry       = NULL;
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static canonicalize_fn_t CanonicalizeEntry  = NULL;
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static ZipInflateFully_t ZipInflateFully    = NULL;
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static Crc32_t           Crc32              = NULL;
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// Entry points for jimage.dll for loading jimage file entries
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static JImageOpen_t                    JImageOpen                    = NULL;
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static JImageClose_t                   JImageClose                   = NULL;
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static JImagePackageToModule_t         JImagePackageToModule         = NULL;
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static JImageFindResource_t            JImageFindResource            = NULL;
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static JImageGetResource_t             JImageGetResource             = NULL;
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static JImageResourceIterator_t        JImageResourceIterator        = NULL;
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// Globals
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PerfCounter*    ClassLoader::_perf_accumulated_time = NULL;
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PerfCounter*    ClassLoader::_perf_classes_inited = NULL;
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PerfCounter*    ClassLoader::_perf_class_init_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_init_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_classes_verified = NULL;
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PerfCounter*    ClassLoader::_perf_class_verify_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_verify_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_classes_linked = NULL;
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PerfCounter*    ClassLoader::_perf_class_link_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_link_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_class_parse_time = NULL;
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PerfCounter*    ClassLoader::_perf_class_parse_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_sys_class_lookup_time = NULL;
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PerfCounter*    ClassLoader::_perf_shared_classload_time = NULL;
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PerfCounter*    ClassLoader::_perf_sys_classload_time = NULL;
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PerfCounter*    ClassLoader::_perf_app_classload_time = NULL;
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PerfCounter*    ClassLoader::_perf_app_classload_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_app_classload_count = NULL;
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PerfCounter*    ClassLoader::_perf_define_appclasses = NULL;
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PerfCounter*    ClassLoader::_perf_define_appclass_time = NULL;
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PerfCounter*    ClassLoader::_perf_define_appclass_selftime = NULL;
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PerfCounter*    ClassLoader::_perf_app_classfile_bytes_read = NULL;
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PerfCounter*    ClassLoader::_perf_sys_classfile_bytes_read = NULL;
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PerfCounter*    ClassLoader::_sync_systemLoaderLockContentionRate = NULL;
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PerfCounter*    ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL;
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PerfCounter*    ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL;
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PerfCounter*    ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL;
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PerfCounter*    ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL;
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PerfCounter*    ClassLoader::_unsafe_defineClassCallCounter = NULL;
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PerfCounter*    ClassLoader::_isUnsyncloadClass = NULL;
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PerfCounter*    ClassLoader::_load_instance_class_failCounter = NULL;
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ClassPathEntry* ClassLoader::_first_entry         = NULL;
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ClassPathEntry* ClassLoader::_last_entry          = NULL;
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int             ClassLoader::_num_entries         = 0;
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PackageHashtable* ClassLoader::_package_hash_table = NULL;
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#if INCLUDE_CDS
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SharedPathsMiscInfo* ClassLoader::_shared_paths_misc_info = NULL;
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#endif
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// helper routines
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bool string_starts_with(const char* str, const char* str_to_find) {
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  size_t str_len = strlen(str);
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  size_t str_to_find_len = strlen(str_to_find);
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  if (str_to_find_len > str_len) {
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    return false;
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  }
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  return (strncmp(str, str_to_find, str_to_find_len) == 0);
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}
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static const char* get_jimage_version_string() {
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  static char version_string[10] = "";
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  if (version_string[0] == '\0') {
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    jio_snprintf(version_string, sizeof(version_string), "%d.%d",
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                 Abstract_VM_Version::vm_major_version(), Abstract_VM_Version::vm_minor_version());
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  }
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  return (const char*)version_string;
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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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ClassPathDirEntry::ClassPathDirEntry(const char* dir) : ClassPathEntry() {
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  char* copy = NEW_C_HEAP_ARRAY(char, strlen(dir)+1, mtClass);
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  strcpy(copy, dir);
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  _dir = copy;
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}
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ClassFileStream* ClassPathDirEntry::open_stream(const char* name, TRAPS) {
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  // construct full path name
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  char path[JVM_MAXPATHLEN];
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  if (jio_snprintf(path, sizeof(path), "%s%s%s", _dir, os::file_separator(), name) == -1) {
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    return NULL;
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  }
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  // check if file exists
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  struct stat st;
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  if (os::stat(path, &st) == 0) {
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#if INCLUDE_CDS
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    if (DumpSharedSpaces) {
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      // We have already check in ClassLoader::check_shared_classpath() that the directory is empty, so
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      // we should never find a file underneath it -- unless user has added a new file while we are running
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      // the dump, in which case let's quit!
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      ShouldNotReachHere();
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    }
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#endif
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    // found file, open it
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    int file_handle = os::open(path, 0, 0);
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    if (file_handle != -1) {
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      // read contents into resource array
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      u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size);
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      size_t num_read = os::read(file_handle, (char*) buffer, st.st_size);
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      // close file
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      os::close(file_handle);
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      // construct ClassFileStream
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      if (num_read == (size_t)st.st_size) {
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        if (UsePerfData) {
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          ClassLoader::perf_sys_classfile_bytes_read()->inc(num_read);
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        }
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        // Resource allocated
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        return new ClassFileStream(buffer,
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                                   st.st_size,
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                                   _dir,
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                                   ClassFileStream::verify);
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      }
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    }
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  }
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  return NULL;
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}
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ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name) : ClassPathEntry() {
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  _zip = zip;
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  char *copy = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1, mtClass);
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  strcpy(copy, zip_name);
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  _zip_name = copy;
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}
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ClassPathZipEntry::~ClassPathZipEntry() {
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  if (ZipClose != NULL) {
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    (*ZipClose)(_zip);
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  }
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  FREE_C_HEAP_ARRAY(char, _zip_name);
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}
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u1* ClassPathZipEntry::open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS) {
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    // enable call to C land
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  JavaThread* thread = JavaThread::current();
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  ThreadToNativeFromVM ttn(thread);
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  // check whether zip archive contains name
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  jint name_len;
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  jzentry* entry = (*FindEntry)(_zip, name, filesize, &name_len);
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  if (entry == NULL) return NULL;
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  u1* buffer;
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  char name_buf[128];
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  char* filename;
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  if (name_len < 128) {
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    filename = name_buf;
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  } else {
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    filename = NEW_RESOURCE_ARRAY(char, name_len + 1);
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  }
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  // file found, get pointer to the entry in mmapped jar file.
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  if (ReadMappedEntry == NULL ||
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      !(*ReadMappedEntry)(_zip, entry, &buffer, filename)) {
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      // mmapped access not available, perhaps due to compression,
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      // read contents into resource array
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      int size = (*filesize) + ((nul_terminate) ? 1 : 0);
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      buffer = NEW_RESOURCE_ARRAY(u1, size);
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      if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL;
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  }
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  // return result
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  if (nul_terminate) {
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    buffer[*filesize] = 0;
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  }
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  return buffer;
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}
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ClassFileStream* ClassPathZipEntry::open_stream(const char* name, TRAPS) {
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  jint filesize;
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  const u1* buffer = open_entry(name, &filesize, false, CHECK_NULL);
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  if (buffer == NULL) {
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    return NULL;
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  }
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  if (UsePerfData) {
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    ClassLoader::perf_sys_classfile_bytes_read()->inc(filesize);
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  }
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  // Resource allocated
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  return new ClassFileStream(buffer,
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                             filesize,
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                             _zip_name,
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                             ClassFileStream::verify);
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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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ClassPathImageEntry::ClassPathImageEntry(JImageFile* jimage, const char* name) :
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  ClassPathEntry(),
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  _jimage(jimage) {
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  guarantee(jimage != NULL, "jimage file is null");
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  guarantee(name != NULL, "jimage file name is null");
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  size_t len = strlen(name) + 1;
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  _name = NEW_C_HEAP_ARRAY(const char, len, mtClass);
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  strncpy((char *)_name, name, len);
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}
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ClassPathImageEntry::~ClassPathImageEntry() {
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  if (_name != NULL) {
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    FREE_C_HEAP_ARRAY(const char, _name);
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    _name = NULL;
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  }
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  if (_jimage != NULL) {
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    (*JImageClose)(_jimage);
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    _jimage = NULL;
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  }
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}
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   318
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   319
void ClassPathImageEntry::name_to_package(const char* name, char* buffer, int length) {
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   320
  const char *pslash = strrchr(name, '/');
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   321
  if (pslash == NULL) {
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   322
    buffer[0] = '\0';
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   323
    return;
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   324
  }
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   325
  int len = pslash - name;
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   326
#if INCLUDE_CDS
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   327
  if (len <= 0 && DumpSharedSpaces) {
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   328
    buffer[0] = '\0';
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   329
    return;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   330
  }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   331
#endif
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   332
  assert(len > 0, "Bad length for package name");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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parents: 31612
diff changeset
   333
  if (len >= length) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   334
    buffer[0] = '\0';
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   335
    return;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   336
  }
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   337
  // drop name after last slash (including slash)
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parents: 31612
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   338
  // Ex., "java/lang/String.class" => "java/lang"
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   339
  strncpy(buffer, name, len);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   340
  // ensure string termination (strncpy does not guarantee)
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   341
  buffer[len] = '\0';
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   342
}
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   343
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   344
// For a class in a named module, look it up in the jimage file using this syntax:
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   345
//    /<module-name>/<package-name>/<base-class>
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   346
//
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   347
// Assumptions:
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   348
//     1. There are no unnamed modules in the jimage file.
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   349
//     2. A package is in at most one module in the jimage file.
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   350
//
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ClassFileStream* ClassPathImageEntry::open_stream(const char* name, TRAPS) {
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   352
  jlong size;
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   353
  JImageLocationRef location = (*JImageFindResource)(_jimage, "", get_jimage_version_string(), name, &size);
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   354
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   355
  if (location == 0) {
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   356
    char package[JIMAGE_MAX_PATH];
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   357
    name_to_package(name, package, JIMAGE_MAX_PATH);
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   358
    if (package[0] != '\0') {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   359
        const char* module = (*JImagePackageToModule)(_jimage, package);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   360
        if (module == NULL) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   361
            module = "java.base";
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   362
        }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   363
        location = (*JImageFindResource)(_jimage, module, get_jimage_version_string(), name, &size);
31608
b5cb9a07591a 8080511: Refresh of jimage support
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diff changeset
   364
    }
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parents: 30764
diff changeset
   365
  }
b5cb9a07591a 8080511: Refresh of jimage support
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parents: 30764
diff changeset
   366
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   367
  if (location != 0) {
27562
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   368
    if (UsePerfData) {
47f369e3c69c 8049367: Modular Run-Time Images
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   369
      ClassLoader::perf_sys_classfile_bytes_read()->inc(size);
47f369e3c69c 8049367: Modular Run-Time Images
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   370
    }
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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   371
    char* data = NEW_RESOURCE_ARRAY(char, size);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   372
    (*JImageGetResource)(_jimage, location, data, size);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
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diff changeset
   373
    // Resource allocated
1c7168ea0034 8140485: Class load and creation cleanup
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   374
    return new ClassFileStream((u1*)data,
1c7168ea0034 8140485: Class load and creation cleanup
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   375
                               (int)size,
1c7168ea0034 8140485: Class load and creation cleanup
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   376
                               _name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
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diff changeset
   377
                               ClassFileStream::verify);
27562
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diff changeset
   378
  }
47f369e3c69c 8049367: Modular Run-Time Images
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parents: 27025
diff changeset
   379
47f369e3c69c 8049367: Modular Run-Time Images
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diff changeset
   380
  return NULL;
47f369e3c69c 8049367: Modular Run-Time Images
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parents: 27025
diff changeset
   381
}
47f369e3c69c 8049367: Modular Run-Time Images
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diff changeset
   382
47f369e3c69c 8049367: Modular Run-Time Images
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diff changeset
   383
#ifndef PRODUCT
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   384
bool ctw_visitor(JImageFile* jimage,
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   385
        const char* module_name, const char* version, const char* package,
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   386
        const char* name, const char* extension, void* arg) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   387
  if (strcmp(extension, "class") == 0) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   388
    Thread* THREAD = Thread::current();
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   389
    char path[JIMAGE_MAX_PATH];
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   390
    jio_snprintf(path, JIMAGE_MAX_PATH - 1, "%s/%s.class", package, name);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   391
    ClassLoader::compile_the_world_in(path, *(Handle*)arg, THREAD);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   392
    return !HAS_PENDING_EXCEPTION;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   393
  }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   394
  return true;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   395
}
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   396
27562
47f369e3c69c 8049367: Modular Run-Time Images
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parents: 27025
diff changeset
   397
void ClassPathImageEntry::compile_the_world(Handle loader, TRAPS) {
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   398
  tty->print_cr("CompileTheWorld : Compiling all classes in %s", name());
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   399
  tty->cr();
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   400
  (*JImageResourceIterator)(_jimage, (JImageResourceVisitor_t)ctw_visitor, (void *)&loader);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   401
  if (HAS_PENDING_EXCEPTION) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   402
    if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   403
      CLEAR_PENDING_EXCEPTION;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   404
      tty->print_cr("\nCompileTheWorld : Ran out of memory\n");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   405
      tty->print_cr("Increase class metadata storage if a limit was set");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   406
    } else {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   407
      tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n");
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   408
    }
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   409
  }
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   410
}
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   411
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   412
bool ClassPathImageEntry::is_jrt() {
31608
b5cb9a07591a 8080511: Refresh of jimage support
jfdenise
parents: 30764
diff changeset
   413
  return string_ends_with(name(), BOOT_IMAGE_NAME);
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   414
}
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   415
#endif
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   416
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   417
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   418
void ClassLoader::exit_with_path_failure(const char* error, const char* message) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   419
  assert(DumpSharedSpaces, "only called at dump time");
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   420
  tty->print_cr("Hint: enable -XX:+TraceClassPaths to diagnose the failure");
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   421
  vm_exit_during_initialization(error, message);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   422
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   423
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   425
void ClassLoader::trace_class_path(outputStream* out, const char* msg, const char* name) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   426
  if (!TraceClassPaths) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   427
    return;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   428
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   429
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   430
  if (msg) {
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   431
    out->print("%s", msg);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   432
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   433
  if (name) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   434
    if (strlen(name) < 256) {
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   435
      out->print("%s", name);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   436
    } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   437
      // For very long paths, we need to print each character separately,
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   438
      // as print_cr() has a length limit
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   439
      while (name[0] != '\0') {
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   440
        out->print("%c", name[0]);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   441
        name++;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   442
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   443
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   444
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   445
  if (msg && msg[0] == '[') {
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   446
    out->print_cr("]");
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   447
  } else {
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   448
    out->cr();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   449
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   450
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   451
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   452
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   453
void ClassLoader::check_shared_classpath(const char *path) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   454
  if (strcmp(path, "") == 0) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   455
    exit_with_path_failure("Cannot have empty path in archived classpaths", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   456
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   457
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   458
  struct stat st;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   459
  if (os::stat(path, &st) == 0) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   460
    if ((st.st_mode & S_IFREG) != S_IFREG) { // is directory
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   461
      if (!os::dir_is_empty(path)) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   462
        tty->print_cr("Error: non-empty directory '%s'", path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   463
        exit_with_path_failure("CDS allows only empty directories in archived classpaths", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   464
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   465
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   466
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   467
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   468
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   469
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
void ClassLoader::setup_bootstrap_search_path() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  assert(_first_entry == NULL, "should not setup bootstrap class search path twice");
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   472
  const char* sys_class_path = Arguments::get_sysclasspath();
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   473
  if (PrintSharedArchiveAndExit) {
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   474
    // Don't print sys_class_path - this is the bootcp of this current VM process, not necessarily
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   475
    // the same as the bootcp of the shared archive.
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   476
  } else {
34287
06ababebbd58 8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg
ccheung
parents: 32619
diff changeset
   477
    trace_class_path(tty, "[Bootstrap loader class path=", sys_class_path);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   478
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   479
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   480
  if (DumpSharedSpaces) {
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   481
    _shared_paths_misc_info->add_boot_classpath(sys_class_path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   483
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   484
  setup_search_path(sys_class_path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   485
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   487
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   488
int ClassLoader::get_shared_paths_misc_info_size() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   489
  return _shared_paths_misc_info->get_used_bytes();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   490
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   491
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   492
void* ClassLoader::get_shared_paths_misc_info() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   493
  return _shared_paths_misc_info->buffer();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   494
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   495
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   496
bool ClassLoader::check_shared_paths_misc_info(void *buf, int size) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   497
  SharedPathsMiscInfo* checker = SharedClassUtil::allocate_shared_paths_misc_info((char*)buf, size);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   498
  bool result = checker->check();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   499
  delete checker;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   500
  return result;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   501
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   502
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   503
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   504
void ClassLoader::setup_search_path(const char *class_path) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   505
  int offset = 0;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   506
  int len = (int)strlen(class_path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  int end = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  // Iterate over class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  for (int start = 0; start < len; start = end) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   511
    while (class_path[end] && class_path[end] != os::path_separator()[0]) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   514
    EXCEPTION_MARK;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   515
    ResourceMark rm(THREAD);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   516
    char* path = NEW_RESOURCE_ARRAY(char, end - start + 1);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   517
    strncpy(path, &class_path[start], end - start);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   518
    path[end - start] = '\0';
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    update_class_path_entry_list(path, false);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   520
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   521
    if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   522
      check_shared_classpath(path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   523
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   524
#endif
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   525
    while (class_path[end] == os::path_separator()[0]) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   531
ClassPathEntry* ClassLoader::create_class_path_entry(const char *path, const struct stat* st,
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   532
                                                     bool throw_exception, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  JavaThread* thread = JavaThread::current();
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   534
  ClassPathEntry* new_entry = NULL;
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   535
  if ((st->st_mode & S_IFREG) == S_IFREG) {
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   536
    // Regular file, should be a zip or jimage file
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
    // Canonicalized filename
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
    char canonical_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
    if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
      // This matches the classic VM
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   541
      if (throw_exception) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   542
        THROW_MSG_(vmSymbols::java_io_IOException(), "Bad pathname", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   543
      } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   544
        return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   545
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    }
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   547
    jint error;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   548
    JImageFile* jimage =(*JImageOpen)(canonical_path, &error);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   549
    if (jimage != NULL) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   550
      new_entry = new ClassPathImageEntry(jimage, canonical_path);
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   551
    } else {
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   552
      char* error_msg = NULL;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   553
      jzfile* zip;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   554
      {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   555
        // enable call to C land
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   556
        ThreadToNativeFromVM ttn(thread);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   557
        HandleMark hm(thread);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   558
        zip = (*ZipOpen)(canonical_path, &error_msg);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   559
      }
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   560
      if (zip != NULL && error_msg == NULL) {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   561
        new_entry = new ClassPathZipEntry(zip, path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
      } else {
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   563
        ResourceMark rm(thread);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   564
        char *msg;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   565
        if (error_msg == NULL) {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   566
          msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   567
          jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   568
        } else {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   569
          int len = (int)(strlen(path) + strlen(error_msg) + 128);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   570
          msg = NEW_RESOURCE_ARRAY(char, len); ;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   571
          jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   572
        }
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   573
        // Don't complain about bad jar files added via -Xbootclasspath/a:.
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   574
        if (throw_exception && is_init_completed()) {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   575
          THROW_MSG_(vmSymbols::java_lang_ClassNotFoundException(), msg, NULL);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   576
        } else {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   577
          return NULL;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   578
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
      }
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   580
    }
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35498
diff changeset
   581
    if (TraceClassPaths) {
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   582
      tty->print_cr("[Opened %s]", path);
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   583
    }
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35498
diff changeset
   584
    log_info(classload)("opened: %s", path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
    // Directory
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   587
    new_entry = new ClassPathDirEntry(path);
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35498
diff changeset
   588
    log_info(classload)("path: %s", path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   590
  return new_entry;
1
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
// Create a class path zip entry for a given path (return NULL if not found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
// or zip/JAR file cannot be opened)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  // check for a regular file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
  if (os::stat(path, &st) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    if ((st.st_mode & S_IFREG) == S_IFREG) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
      char canonical_path[JVM_MAXPATHLEN];
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   602
      if (get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
        char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
        jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
          // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
          JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
          ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
          HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
          zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
        if (zip != NULL && error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
          // create using canonical path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
          return new ClassPathZipEntry(zip, canonical_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
// returns true if entry already on class path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
bool ClassLoader::contains_entry(ClassPathEntry *entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
    // assume zip entries have been canonicalized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
    if (strcmp(entry->name(), e->name()) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
void ClassLoader::add_to_list(ClassPathEntry *new_entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
  if (new_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
    if (_last_entry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
      _first_entry = _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
      _last_entry->set_next(new_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
      _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   644
  _num_entries ++;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   647
// Returns true IFF the file/dir exists and the entry was successfully created.
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   648
bool ClassLoader::update_class_path_entry_list(const char *path,
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   649
                                               bool check_for_duplicates,
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   650
                                               bool throw_exception) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
  struct stat st;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   652
  if (os::stat(path, &st) == 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
    // File or directory found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
    ClassPathEntry* new_entry = NULL;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   655
    Thread* THREAD = Thread::current();
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   656
    new_entry = create_class_path_entry(path, &st, throw_exception, CHECK_(false));
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   657
    if (new_entry == NULL) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   658
      return false;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   659
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
    // The kernel VM adds dynamically to the end of the classloader path and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    // doesn't reorder the bootclasspath which would break java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
    // (see PackageInfo).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    // Add new entry to linked list
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
    if (!check_for_duplicates || !contains_entry(new_entry)) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   665
      ClassLoaderExt::add_class_path_entry(path, check_for_duplicates, new_entry);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
    }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   667
    return true;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   668
  } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   669
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   670
    if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   671
      _shared_paths_misc_info->add_nonexist_path(path);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   672
    }
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   673
#endif
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   674
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
void ClassLoader::print_bootclasspath() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
  tty->print("[bootclasspath= ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
    tty->print("%s ;", e->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
void ClassLoader::load_zip_library() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
  assert(ZipOpen == NULL, "should not load zip library twice");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
  // First make sure native library is loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
  os::native_java_library();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
  // Load zip library
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  char path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  char ebuf[1024];
14471
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   695
  void* handle = NULL;
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   696
  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
   697
    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
   698
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  if (handle == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
    vm_exit_during_initialization("Unable to load ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  // Lookup zip entry points
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   703
  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
   704
  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
   705
  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
   706
  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
   707
  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
   708
  GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, os::dll_lookup(handle, "ZIP_GetNextEntry"));
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   709
  ZipInflateFully = CAST_TO_FN_PTR(ZipInflateFully_t, os::dll_lookup(handle, "ZIP_InflateFully"));
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   710
  Crc32        = CAST_TO_FN_PTR(Crc32_t, os::dll_lookup(handle, "ZIP_CRC32"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  // ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   713
  if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL ||
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   714
      GetNextEntry == NULL || Crc32 == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
    vm_exit_during_initialization("Corrupted ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   718
  if (ZipInflateFully == NULL) {
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   719
    vm_exit_during_initialization("Corrupted ZIP library ZIP_InflateFully missing", path);
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   720
  }
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   721
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  // Lookup canonicalize entry in libjava.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  void *javalib_handle = os::native_java_library();
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   724
  CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, os::dll_lookup(javalib_handle, "Canonicalize"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
  // This lookup only works on 1.3. Do not check for non-null here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   728
void ClassLoader::load_jimage_library() {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   729
  // First make sure native library is loaded
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   730
  os::native_java_library();
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   731
  // Load jimage library
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   732
  char path[JVM_MAXPATHLEN];
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   733
  char ebuf[1024];
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   734
  void* handle = NULL;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   735
  if (os::dll_build_name(path, sizeof(path), Arguments::get_dll_dir(), "jimage")) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   736
    handle = os::dll_load(path, ebuf, sizeof ebuf);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   737
  }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   738
  if (handle == NULL) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   739
    vm_exit_during_initialization("Unable to load jimage library", path);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   740
  }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   741
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   742
  // Lookup jimage entry points
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   743
  JImageOpen = CAST_TO_FN_PTR(JImageOpen_t, os::dll_lookup(handle, "JIMAGE_Open"));
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   744
  guarantee(JImageOpen != NULL, "function JIMAGE_Open not found");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   745
  JImageClose = CAST_TO_FN_PTR(JImageClose_t, os::dll_lookup(handle, "JIMAGE_Close"));
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   746
  guarantee(JImageClose != NULL, "function JIMAGE_Close not found");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   747
  JImagePackageToModule = CAST_TO_FN_PTR(JImagePackageToModule_t, os::dll_lookup(handle, "JIMAGE_PackageToModule"));
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   748
  guarantee(JImagePackageToModule != NULL, "function JIMAGE_PackageToModule not found");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   749
  JImageFindResource = CAST_TO_FN_PTR(JImageFindResource_t, os::dll_lookup(handle, "JIMAGE_FindResource"));
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   750
  guarantee(JImageFindResource != NULL, "function JIMAGE_FindResource not found");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   751
  JImageGetResource = CAST_TO_FN_PTR(JImageGetResource_t, os::dll_lookup(handle, "JIMAGE_GetResource"));
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   752
  guarantee(JImageGetResource != NULL, "function JIMAGE_GetResource not found");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   753
  JImageResourceIterator = CAST_TO_FN_PTR(JImageResourceIterator_t, os::dll_lookup(handle, "JIMAGE_ResourceIterator"));
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   754
  guarantee(JImageResourceIterator != NULL, "function JIMAGE_ResourceIterator not found");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   755
}
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   756
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   757
jboolean ClassLoader::decompress(void *in, u8 inSize, void *out, u8 outSize, char **pmsg) {
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   758
  return (*ZipInflateFully)(in, inSize, out, outSize, pmsg);
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   759
}
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   760
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   761
int ClassLoader::crc32(int crc, const char* buf, int len) {
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   762
  assert(Crc32 != NULL, "ZIP_CRC32 is not found");
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   763
  return (*Crc32)(crc, (const jbyte*)buf, len);
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   764
}
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
   765
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
// PackageInfo data exists in order to support the java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
// class.  A Package object provides information about a java package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
// (version, vendor, etc.) which originates in the manifest of the jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
// file supplying the package.  For application classes, the ClassLoader
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
// object takes care of this.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
// For system (boot) classes, the Java code in the Package class needs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
// to be able to identify which source jar file contained the boot
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
// class, so that it can extract the manifest from it.  This table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
// identifies java packages with jar files in the boot classpath.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
// Because the boot classpath cannot change, the classpath index is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
// sufficient to identify the source jar file or directory.  (Since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
// directories have no manifests, the directory name is not required,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
// but is available.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
// When using sharing -- the pathnames of entries in the boot classpath
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
// may not be the same at runtime as they were when the archive was
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
// created (NFS, Samba, etc.).  The actual files and directories named
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
// in the classpath must be the same files, in the same order, even
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
// though the exact name is not the same.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   788
class PackageInfo: public BasicHashtableEntry<mtClass> {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  const char* _pkgname;       // Package name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  int _classpath_index;       // Index of directory or JAR file loaded from
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  PackageInfo* next() {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   794
    return (PackageInfo*)BasicHashtableEntry<mtClass>::next();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  const char* pkgname()           { return _pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
  void set_pkgname(char* pkgname) { _pkgname = pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
  const char* filename() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    return ClassLoader::classpath_entry(_classpath_index)->name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
  void set_index(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
    _classpath_index = index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   810
class PackageHashtable : public BasicHashtable<mtClass> {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
  inline unsigned int compute_hash(const char *s, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
    unsigned int val = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
    while (--n >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
      val = *s++ + 31 * val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
    return val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
  PackageInfo* bucket(int index) {
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   821
    return (PackageInfo*)BasicHashtable<mtClass>::bucket(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
  PackageInfo* get_entry(int index, unsigned int hash,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
                         const char* pkgname, size_t n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
    for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
      if (pp->hash() == hash &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
          strncmp(pkgname, pp->pkgname(), n) == 0 &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
          pp->pkgname()[n] == '\0') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
        return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
  PackageHashtable(int table_size)
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   838
    : BasicHashtable<mtClass>(table_size, sizeof(PackageInfo)) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   840
  PackageHashtable(int table_size, HashtableBucket<mtClass>* t, int number_of_entries)
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   841
    : BasicHashtable<mtClass>(table_size, sizeof(PackageInfo), t, number_of_entries) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
  PackageInfo* get_entry(const char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    return get_entry(hash_to_index(hash), hash, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
  PackageInfo* new_entry(char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
    PackageInfo* pp;
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   851
    pp = (PackageInfo*)BasicHashtable<mtClass>::new_entry(hash);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
    pp->set_pkgname(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
    return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  void add_entry(PackageInfo* pp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
    int index = hash_to_index(pp->hash());
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   858
    BasicHashtable<mtClass>::add_entry(index, pp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
  void copy_pkgnames(const char** packages) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
    int n = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
    for (int i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
      for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
        packages[n++] = pp->pkgname();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
    assert(n == number_of_entries(), "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   871
  CDS_ONLY(void copy_table(char** top, char* end, PackageHashtable* table);)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   874
#if INCLUDE_CDS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
void PackageHashtable::copy_table(char** top, char* end,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
                                  PackageHashtable* table) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
  // Copy (relocate) the table to the shared space.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   878
  BasicHashtable<mtClass>::copy_table(top, end);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
  // Calculate the space needed for the package name strings.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  int i;
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   882
  intptr_t* tableSize = (intptr_t*)(*top);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   883
  *top += sizeof(intptr_t);  // For table size
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   884
  char* tableStart = *top;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
  for (i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
    for (PackageInfo* pp = table->bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
                      pp != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
                      pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
      int n1 = (int)(strlen(pp->pkgname()) + 1);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   891
      if (*top + n1 >= end) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   892
        report_out_of_shared_space(SharedMiscData);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   893
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
      pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
      *top += n1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
  *top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord));
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   899
  if (*top >= end) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   900
    report_out_of_shared_space(SharedMiscData);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   901
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   902
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   903
  // Write table size
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   904
  intptr_t len = *top - (char*)tableStart;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   905
  *tableSize = len;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
void ClassLoader::copy_package_info_buckets(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
  _package_hash_table->copy_buckets(top, end);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
void ClassLoader::copy_package_info_table(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
  _package_hash_table->copy_table(top, end, _package_hash_table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
}
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   916
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
PackageInfo* ClassLoader::lookup_package(const char *pkgname) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
  const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
  if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
    // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
    int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
    return _package_hash_table->get_entry(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
  assert(pkgname != NULL, "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
  // Bootstrap loader no longer holds system loader lock obj serializing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
  // load_instance_class and thereby add_package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
    // First check for previously loaded entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
    PackageInfo* pp = lookup_package(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
    if (pp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
      // Existing entry found, check source of package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
    const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
    if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
      // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
      int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
   948
      char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
      if (new_pkgname == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
        return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
      memcpy(new_pkgname, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
      new_pkgname[n] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
      pp = _package_hash_table->new_entry(new_pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
      // Insert into hash table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
      _package_hash_table->add_entry(pp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
oop ClassLoader::get_system_package(const char* name, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
  PackageInfo* pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
    pp = lookup_package(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
  if (pp == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
    Handle p = java_lang_String::create_from_str(pp->filename(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
    return p();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
objArrayOop ClassLoader::get_system_packages(TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
  int nof_entries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
  const char** packages;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
    // Allocate resource char* array containing package names
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
    nof_entries = _package_hash_table->number_of_entries();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
    if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
    _package_hash_table->copy_pkgnames(packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
  // Allocate objArray and fill with java.lang.String
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 3820
diff changeset
   995
  objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
                                           nof_entries, CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
  objArrayHandle result(THREAD, r);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  for (int i = 0; i < nof_entries; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
    Handle str = java_lang_String::create_from_str(packages[i], CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
    result->obj_at_put(i, str());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
  return result();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1006
// caller needs ResourceMark
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1007
const char* ClassLoader::file_name_for_class_name(const char* class_name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1008
                                                  int class_name_len) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1009
  assert(class_name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1010
  assert((int)strlen(class_name) == class_name_len, "invariant");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1012
  static const char class_suffix[] = ".class";
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1013
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1014
  char* const file_name = NEW_RESOURCE_ARRAY(char,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1015
                                             class_name_len +
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1016
                                             sizeof(class_suffix)); // includes term NULL
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1017
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1018
  strncpy(file_name, class_name, class_name_len);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1019
  strncpy(&file_name[class_name_len], class_suffix, sizeof(class_suffix));
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1020
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1021
  return file_name;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1022
}
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1023
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1024
instanceKlassHandle ClassLoader::load_class(Symbol* name, TRAPS) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1025
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1026
  assert(name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1027
  assert(THREAD->is_Java_thread(), "must be a JavaThread");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1028
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1029
  ResourceMark rm;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1030
  HandleMark hm;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1031
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1032
  const char* const class_name = name->as_C_string();
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1033
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1034
  EventMark m("loading class %s", class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
  ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1037
  const char* const file_name = file_name_for_class_name(class_name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1038
                                                         name->utf8_length());
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1039
  assert(file_name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1040
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1041
  ClassLoaderExt::Context context(class_name, file_name, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1043
  // Lookup stream
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
  ClassFileStream* stream = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
  int classpath_index = 0;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1046
  ClassPathEntry* e = _first_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
  {
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1048
    PerfClassTraceTime vmtimer(perf_sys_class_lookup_time(),
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1049
      ((JavaThread*)THREAD)->get_thread_stat()->perf_timers_addr(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1050
      PerfClassTraceTime::CLASS_LOAD);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1051
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1052
    for (; e != NULL; e = e->next(), ++classpath_index) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1053
      stream = e->open_stream(file_name, CHECK_NULL);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1054
      if (NULL == stream) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1055
        continue;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1056
      }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1057
      if (!context.check(stream, classpath_index)) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1058
        return NULL;
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1059
      }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1060
      break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1064
  if (NULL == stream) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1065
    if (DumpSharedSpaces) {
27618
790a8bf5488b 8064375: Change certain errors to warnings in CDS output.
jiangli
parents: 27025
diff changeset
  1066
      tty->print_cr("Preload Warning: Cannot find %s", class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
    }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1068
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1071
  stream->set_verify(context.should_verify(classpath_index));
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1072
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1073
  ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1074
  Handle protection_domain;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1075
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1076
  instanceKlassHandle result = KlassFactory::create_from_stream(stream,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1077
                                                                name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1078
                                                                loader_data,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1079
                                                                protection_domain,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1080
                                                                NULL, // host_klass
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1081
                                                                NULL, // cp_patches
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1082
                                                                NULL, // parsed_name
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1083
                                                                THREAD);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1084
  if (HAS_PENDING_EXCEPTION) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1085
    if (DumpSharedSpaces) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1086
      tty->print_cr("Preload Error: Failed to load %s", class_name);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1087
    }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1088
    return NULL;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1089
  }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1090
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1091
  return context.record_result(classpath_index, e, result, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
  1094
void ClassLoader::create_package_info_table(HashtableBucket<mtClass> *t, int length,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
                                            int number_of_entries) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
  assert(_package_hash_table == NULL, "One package info table allowed.");
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 10565
diff changeset
  1097
  assert(length == package_hash_table_size * sizeof(HashtableBucket<mtClass>),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
         "bad shared package info size.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
  _package_hash_table = new PackageHashtable(package_hash_table_size, t,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
                                             number_of_entries);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
void ClassLoader::create_package_info_table() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
    assert(_package_hash_table == NULL, "shouldn't have one yet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
    _package_hash_table = new PackageHashtable(package_hash_table_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
// Initialize the class loader's access to methods in libzip.  Parse and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
// process the boot classpath into a list ClassPathEntry objects.  Once
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
// this list has been created, it must not change order (see class PackageInfo)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
// it can be appended to and is by jvmti and the kernel vm.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
void ClassLoader::initialize() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
  assert(_package_hash_table == NULL, "should have been initialized by now.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
  if (UsePerfData) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
    // jvmstat performance counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
    NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
    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
  1123
    NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
    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
  1125
    NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
    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
  1127
    NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
    NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
    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
  1130
    NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1131
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1132
    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
  1133
    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
  1134
    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
  1135
    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
  1136
    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
  1137
    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
  1138
    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
  1139
    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
  1140
    NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1141
    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
  1142
    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
  1143
    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
  1144
    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
  1145
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
    // The following performance counters are added for measuring the impact
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
    // of the bug fix of 6365597. They are mainly focused on finding out
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
    // the behavior of system & user-defined classloader lock, whether
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
    // ClassLoader.loadClass/findClass is being called synchronized or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
    // Also two additional counters are created to see whether 'UnsyncloadClass'
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
    // flag is being set or not and how many times load_instance_class call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
    // fails with linkageError etc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
    NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
                        "systemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
    NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
                        "nonSystemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
    NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
                        "jvmFindLoadedClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
    NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
                        "jvmDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
    NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
                        "jniDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
    NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
                        "unsafeDefineClassCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
    NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
    NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
                        "loadInstanceClassFailRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
    // increment the isUnsyncloadClass counter if UnsyncloadClass is set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
    if (UnsyncloadClass) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
      _isUnsyncloadClass->inc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  // lookup zip library entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
  load_zip_library();
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1181
  // lookup jimage library entry points
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1182
  load_jimage_library();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1183
#if INCLUDE_CDS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  // initialize search path
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1185
  if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1186
    _shared_paths_misc_info = SharedClassUtil::allocate_shared_paths_misc_info();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1187
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1188
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  setup_bootstrap_search_path();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1192
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1193
void ClassLoader::initialize_shared_path() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1194
  if (DumpSharedSpaces) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1195
    ClassLoaderExt::setup_search_paths();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1196
    _shared_paths_misc_info->write_jint(0); // see comments in SharedPathsMiscInfo::check()
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1197
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1198
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1199
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
jlong ClassLoader::classloader_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
    Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
jlong ClassLoader::class_init_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
  return UsePerfData ? _perf_classes_inited->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
jlong ClassLoader::class_init_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
    Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
jlong ClassLoader::class_verify_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
    Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
jlong ClassLoader::class_link_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
  return UsePerfData ? _perf_classes_linked->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
jlong ClassLoader::class_link_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
    Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
int ClassLoader::compute_Object_vtable() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
  // hardwired for JDK1.2 -- would need to duplicate class file parsing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
  // code to determine actual value from file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  // Would be value '11' if finals were in vtable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
  int JDK_1_2_Object_vtable_size = 5;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  return JDK_1_2_Object_vtable_size * vtableEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
void classLoader_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  ClassLoader::initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1243
bool ClassLoader::get_canonical_path(const char* orig, char* out, int len) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  assert(orig != NULL && out != NULL && len > 0, "bad arguments");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
  if (CanonicalizeEntry != NULL) {
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1246
    JavaThread* THREAD = JavaThread::current();
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1247
    JNIEnv* env = THREAD->jni_environment();
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1248
    ResourceMark rm(THREAD);
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1249
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1250
    // os::native_path writes into orig_copy
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1251
    char* orig_copy = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, strlen(orig)+1);
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1252
    strcpy(orig_copy, orig);
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1253
    if ((CanonicalizeEntry)(env, os::native_path(orig_copy), out, len) < 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
    // On JDK 1.2.2 the Canonicalize does not exist, so just do nothing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
    strncpy(out, orig, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
    out[len - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
void ClassLoader::verify() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
  _package_hash_table->verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
// CompileTheWorld
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
// Iterates over all class path entries and forces compilation of all methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
// in all classes found. Currently, only zip/jar archives are searched.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
// The classes are loaded by the Java level bootstrap class loader, and the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
// initializer is called. If DelayCompilationDuringStartup is true (default),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
// the interpreter will run the initialization code. Note that forcing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
// initialization in this way could potentially lead to initialization order
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
// problems, in which case we could just force the initialization bit to be set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
// We need to iterate over the contents of a zip/jar file, so we replicate the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
// jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
// since jzfile already has a void* definition.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
// Note that this is only used in debug mode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
// HotSpot integration note:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
// Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
// JDK 1.3 version
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1294
typedef struct real_jzentry {         /* Zip file entry */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
    char *name;                 /* entry name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
    jint time;                  /* modification time */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
    jint size;                  /* size of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
    jint csize;                 /* size of compressed data (zero if uncompressed) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
    jint crc;                   /* crc of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
    char *comment;              /* optional zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
    jbyte *extra;               /* optional extra data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
    jint pos;                   /* position of LOC header (if negative) or data */
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1303
} real_jzentry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1305
typedef struct real_jzfile {  /* Zip file */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
    char *name;                 /* zip file name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
    jint refs;                  /* number of active references */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
    jint fd;                    /* open file descriptor */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
    void *lock;                 /* read lock */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
    char *comment;              /* zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
    char *msg;                  /* zip error message */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
    void *entries;              /* array of hash cells */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
    jint total;                 /* total number of entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
    unsigned short *table;      /* Hash chain heads: indexes into entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
    jint tablelen;              /* number of hash eads */
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1316
    real_jzfile *next;        /* next zip file in search list */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
    jzentry *cache;             /* we cache the most recently freed jzentry */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
    /* Information on metadata names in META-INF directory */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
    char **metanames;           /* array of meta names (may have null names) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
    jint metacount;             /* number of slots in metanames array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
    /* If there are any per-entry comments, they are in the comments array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
    char **comments;
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1323
} real_jzfile;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
  // For now we only compile all methods in all classes in zip/jar files
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
  tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1331
bool ClassPathDirEntry::is_jrt() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) {
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1336
  real_jzfile* zip = (real_jzfile*) _zip;
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1337
  tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name);
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1338
  tty->cr();
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1339
  // Iterate over all entries in zip file
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1340
  for (int n = 0; ; n++) {
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1341
    real_jzentry * ze = (real_jzentry *)((*GetNextEntry)(_zip, n));
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1342
    if (ze == NULL) break;
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24424
diff changeset
  1343
    ClassLoader::compile_the_world_in(ze->name, loader, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
    if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
      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
  1349
      tty->print_cr("Increase class metadata storage if a limit was set");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
      tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n");
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
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1356
bool ClassPathZipEntry::is_jrt() {
29076
4a5f7c1e6ed7 8068687: Remove meta-index support and cleanup hotspot code for rt.jar etc in non-modular jdk image
hseigel
parents: 27926
diff changeset
  1357
  return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
void ClassLoader::compile_the_world() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
  HandleMark hm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
  // Make sure we don't run with background compilation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
  BackgroundCompilation = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
  // Find bootstrap loader
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
  Handle system_class_loader (THREAD, SystemDictionary::java_system_loader());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
  // Iterate over all bootstrap class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
  ClassPathEntry* e = _first_entry;
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1370
  jlong start = os::javaTimeMillis();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
  while (e != NULL) {
29076
4a5f7c1e6ed7 8068687: Remove meta-index support and cleanup hotspot code for rt.jar etc in non-modular jdk image
hseigel
parents: 27926
diff changeset
  1372
    // We stop at bootmodules.jimage, unless it is the first bootstrap path entry
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1373
    if (e->is_jrt() && e != _first_entry) break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
    e->compile_the_world(system_class_loader, CATCH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
  }
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1377
  jlong end = os::javaTimeMillis();
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 22838
diff changeset
  1378
  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
  1379
                _compile_the_world_class_counter, _compile_the_world_method_counter, (end - start));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
    // Print statistics as if before normal exit:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
    extern void print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
    print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
  vm_exit(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1388
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
  1389
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
  1390
static int _codecache_sweep_counter = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1392
// Filter out all exceptions except OOMs
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1393
static void clear_pending_exception_if_not_oom(TRAPS) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1394
  if (HAS_PENDING_EXCEPTION &&
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1395
      !PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1396
    CLEAR_PENDING_EXCEPTION;
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1397
  }
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1398
  // The CHECK at the caller will propagate the exception out
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1399
}
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1400
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
  1401
/**
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1402
 * 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
  1403
 *
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1404
 * 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
  1405
 */
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1406
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
  1407
  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
  1408
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1409
  // 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
  1410
  // 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
  1411
  // 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
  1412
  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
  1413
  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
  1414
    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
  1415
  }
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1416
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1417
  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
  1418
}
9f5ffba04ead 8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents: 19685
diff changeset
  1419
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1421
  if (string_ends_with(name, ".class")) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
    // We have a .class file
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1423
    int len = (int)strlen(name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
    char buffer[2048];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
    strncpy(buffer, name, len - 6);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
    buffer[len-6] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
    // If the file has a period after removing .class, it's not really a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
    // valid class file.  The class loader will check everything else.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
    if (strchr(buffer, '.') == NULL) {
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1430
      _compile_the_world_class_counter++;
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1431
      if (_compile_the_world_class_counter > CompileTheWorldStopAt) return;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1432
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1433
      // Construct name without extension
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
  1434
      TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1435
      // Use loader to load and initialize class
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1436
      Klass* ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1437
      instanceKlassHandle k (THREAD, ik);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1438
      if (k.not_null() && !HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1439
        k->initialize(THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1440
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1441
      bool exception_occurred = HAS_PENDING_EXCEPTION;
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1442
      clear_pending_exception_if_not_oom(CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1443
      if (CompileTheWorldPreloadClasses && k.not_null()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
  1444
        ConstantPool::preload_and_initialize_all_classes(k->constants(), THREAD);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1445
        if (HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1446
          // If something went wrong in preloading we just ignore it
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1447
          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
  1448
          tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
        }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1450
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1451
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1452
      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
  1453
        if (k.is_null() || exception_occurred) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
          // 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
  1455
          tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
        } else {
17004
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1457
          tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_class_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
          // Preload all classes to get around uncommon traps
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
          // Iterate over all methods in class
17126
42a942feeea2 8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents: 17004
diff changeset
  1460
          int comp_level = CompilationPolicy::policy()->initial_compile_level();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
          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
  1462
            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
  1463
            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
  1464
              if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) {
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1465
                // 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
  1466
                VM_ForceSafepoint op;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1467
                VMThread::execute(&op);
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1468
                _codecache_sweep_counter = 0;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1469
              }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
              // Force compilation
17126
42a942feeea2 8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents: 17004
diff changeset
  1471
              CompileBroker::compile_method(m, InvocationEntryBci, comp_level,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
                                            methodHandle(), 0, "CTW", THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
              if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1474
                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
  1475
                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
  1476
              } else {
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1477
                _compile_the_world_method_counter++;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
              }
10250
0794cd144834 7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents: 8921
diff changeset
  1479
              if (TieredCompilation && TieredStopAtLevel >= CompLevel_full_optimization) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1480
                // Clobber the first compile and force second tier compilation
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1481
                nmethod* nm = m->code();
26581
cb21ee34883d 8057750: CTW should not make MH intrinsics not entrant
iveresov
parents: 26135
diff changeset
  1482
                if (nm != NULL && !m->is_method_handle_intrinsic()) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1483
                  // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1484
                  nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1485
                  m->clear_code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1486
                }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5924
diff changeset
  1487
                CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_full_optimization,
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1488
                                              methodHandle(), 0, "CTW", THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1489
                if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1490
                  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
  1491
                  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
  1492
                } else {
4d2371d76a19 8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents: 14588
diff changeset
  1493
                  _compile_the_world_method_counter++;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1494
                }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
              }
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
  1496
            } 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
  1497
              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
  1498
            }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1499
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1500
            nmethod* nm = m->code();
26581
cb21ee34883d 8057750: CTW should not make MH intrinsics not entrant
iveresov
parents: 26135
diff changeset
  1501
            if (nm != NULL && !m->is_method_handle_intrinsic()) {
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1502
              // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1503
              nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1504
              m->clear_code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
#endif //PRODUCT
7910
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1514
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1515
// 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
  1516
// 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
  1517
void PerfClassTraceTime::initialize() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1518
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1519
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1520
  if (_eventp != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1521
    // increment the event counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1522
    _eventp->inc();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1523
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1524
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1525
  // stop the current active thread-local timer to measure inclusive time
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1526
  _prev_active_event = -1;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1527
  for (int i=0; i < EVENT_TYPE_COUNT; i++) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1528
     if (_timers[i].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1529
       assert(_prev_active_event == -1, "should have only one active timer");
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1530
       _prev_active_event = i;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1531
       _timers[i].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1532
     }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1533
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1534
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1535
  if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1536
    // start the inclusive timer if not recursively called
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1537
    _t.start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1538
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1539
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1540
  // start thread-local timer of the given event type
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1541
   if (!_timers[_event_type].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1542
    _timers[_event_type].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1543
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1544
}
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1545
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1546
PerfClassTraceTime::~PerfClassTraceTime() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1547
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1548
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1549
  // stop the thread-local timer as the event completes
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1550
  // 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
  1551
  _timers[_event_type].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1552
  jlong selftime = _timers[_event_type].ticks();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1553
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1554
  if (_prev_active_event >= 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1555
    _timers[_prev_active_event].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1556
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1557
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1558
  if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1559
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1560
  // increment the counters only on the leaf call
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1561
  _t.stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1562
  _timep->inc(_t.ticks());
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1563
  if (_selftimep != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1564
    _selftimep->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1565
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1566
  // 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
  1567
  ClassLoader::perf_accumulated_time()->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1568
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1569
  // reset the timer
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1570
  _timers[_event_type].reset();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1571
}