src/hotspot/share/classfile/classLoader.cpp
author clanger
Fri, 01 Nov 2019 07:58:05 +0100
changeset 58879 717ebfbac29d
parent 58842 6c255334120d
permissions -rw-r--r--
8232980: Cleanup initialization of function pointers into java.base from classloader.cpp Reviewed-by: iklam, ccheung
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/*
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 * Copyright (c) 1997, 2019, 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 "jvm.h"
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#include "jimage.hpp"
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#include "classfile/classFileStream.hpp"
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#include "classfile/classLoader.inline.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/moduleEntry.hpp"
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#include "classfile/modules.hpp"
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#include "classfile/packageEntry.hpp"
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#include "classfile/klassFactory.hpp"
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#include "classfile/symbolTable.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/systemDictionaryShared.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "compiler/compileBroker.hpp"
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#include "interpreter/bytecodeStream.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "logging/log.hpp"
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#include "logging/logStream.hpp"
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#include "logging/logTag.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/resourceArea.hpp"
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#include "memory/universe.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/instanceRefKlass.hpp"
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#include "oops/method.inline.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/handles.inline.hpp"
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#include "runtime/init.hpp"
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#include "runtime/interfaceSupport.inline.hpp"
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#include "runtime/java.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/os.inline.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/classpathStream.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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// Entry point in java.dll for path canonicalization
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static canonicalize_fn_t CanonicalizeEntry  = NULL;
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// Entry points in zip.dll for loading zip/jar file entries
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typedef void * * (*ZipOpen_t)(const char *name, char **pmsg);
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typedef void     (*ZipClose_t)(jzfile *zip);
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typedef jzentry* (*FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen);
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typedef jboolean (*ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf);
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typedef jzentry* (*GetNextEntry_t)(jzfile *zip, jint n);
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typedef jint     (*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 GetNextEntry_t    GetNextEntry       = 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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GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = NULL;
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GrowableArray<ModuleClassPathList*>* ClassLoader::_exploded_entries = NULL;
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ClassPathEntry* ClassLoader::_jrt_entry = NULL;
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ClassPathEntry* ClassLoader::_first_append_entry = NULL;
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ClassPathEntry* ClassLoader::_last_append_entry  = NULL;
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#if INCLUDE_CDS
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ClassPathEntry* ClassLoader::_app_classpath_entries = NULL;
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ClassPathEntry* ClassLoader::_last_app_classpath_entry = NULL;
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ClassPathEntry* ClassLoader::_module_path_entries = NULL;
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ClassPathEntry* ClassLoader::_last_module_path_entry = 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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                 VM_Version::vm_major_version(), 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 ClassLoader::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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// Used to obtain the package name from a fully qualified class name.
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// It is the responsibility of the caller to establish a ResourceMark.
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const char* ClassLoader::package_from_name(const char* const class_name, bool* bad_class_name) {
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  if (class_name == NULL) {
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    if (bad_class_name != NULL) {
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      *bad_class_name = true;
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    }
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    return NULL;
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  }
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  if (bad_class_name != NULL) {
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    *bad_class_name = false;
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  }
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  const char* const last_slash = strrchr(class_name, JVM_SIGNATURE_SLASH);
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  if (last_slash == NULL) {
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    // No package name
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    return NULL;
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  }
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  char* class_name_ptr = (char*) class_name;
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  // Skip over '['s
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  if (*class_name_ptr == JVM_SIGNATURE_ARRAY) {
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    do {
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      class_name_ptr++;
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    } while (*class_name_ptr == JVM_SIGNATURE_ARRAY);
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    // Fully qualified class names should not contain a 'L'.
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    // Set bad_class_name to true to indicate that the package name
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    // could not be obtained due to an error condition.
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    // In this situation, is_same_class_package returns false.
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    if (*class_name_ptr == JVM_SIGNATURE_CLASS) {
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      if (bad_class_name != NULL) {
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        *bad_class_name = true;
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      }
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      return NULL;
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    }
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  }
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  int length = last_slash - class_name_ptr;
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  // A class name could have just the slash character in the name.
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  if (length <= 0) {
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    // No package name
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    if (bad_class_name != NULL) {
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      *bad_class_name = true;
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    }
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    return NULL;
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  }
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  // drop name after last slash (including slash)
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  // Ex., "java/lang/String.class" => "java/lang"
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  char* pkg_name = NEW_RESOURCE_ARRAY(char, length + 1);
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  strncpy(pkg_name, class_name_ptr, length);
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  *(pkg_name+length) = '\0';
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  return (const char *)pkg_name;
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}
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// Given a fully qualified class name, find its defining package in the class loader's
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// package entry table.
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PackageEntry* ClassLoader::get_package_entry(const char* class_name, ClassLoaderData* loader_data, TRAPS) {
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  ResourceMark rm(THREAD);
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  const char *pkg_name = ClassLoader::package_from_name(class_name);
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  if (pkg_name == NULL) {
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    return NULL;
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  }
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  PackageEntryTable* pkgEntryTable = loader_data->packages();
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  TempNewSymbol pkg_symbol = SymbolTable::new_symbol(pkg_name);
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  return pkgEntryTable->lookup_only(pkg_symbol);
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}
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const char* ClassPathEntry::copy_path(const char* path) {
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  char* copy = NEW_C_HEAP_ARRAY(char, strlen(path)+1, mtClass);
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  strcpy(copy, path);
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  return 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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  assert((_dir != NULL) && (name != NULL), "sanity");
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  size_t path_len = strlen(_dir) + strlen(name) + strlen(os::file_separator()) + 1;
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  char* path = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, path_len);
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  int len = jio_snprintf(path, path_len, "%s%s%s", _dir, os::file_separator(), name);
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  assert(len == (int)(path_len - 1), "sanity");
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  // check if file exists
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  struct stat st;
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  if (os::stat(path, &st) == 0) {
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    // found file, open it
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    int file_handle = os::open(path, 0, 0);
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    if (file_handle != -1) {
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      // read contents into resource array
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      u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size);
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      size_t num_read = os::read(file_handle, (char*) buffer, st.st_size);
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      // close file
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      os::close(file_handle);
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      // construct ClassFileStream
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      if (num_read == (size_t)st.st_size) {
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        if (UsePerfData) {
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          ClassLoader::perf_sys_classfile_bytes_read()->inc(num_read);
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        }
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        FREE_RESOURCE_ARRAY(char, path, path_len);
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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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  FREE_RESOURCE_ARRAY(char, path, path_len);
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  return NULL;
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}
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ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name,
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                                     bool is_boot_append, bool from_class_path_attr) : ClassPathEntry() {
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  _zip = zip;
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  _zip_name = copy_path(zip_name);
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  _from_class_path_attr = from_class_path_attr;
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}
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ClassPathZipEntry::~ClassPathZipEntry() {
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  (*ZipClose)(_zip);
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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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  // read contents into resource array
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   321
  int size = (*filesize) + ((nul_terminate) ? 1 : 0);
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  buffer = NEW_RESOURCE_ARRAY(u1, size);
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   323
  if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL;
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   324
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  // return result
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   326
  if (nul_terminate) {
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    buffer[*filesize] = 0;
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   328
  }
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  return buffer;
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   330
}
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   331
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ClassFileStream* ClassPathZipEntry::open_stream(const char* name, TRAPS) {
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   333
  jint filesize;
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   334
  u1* buffer = open_entry(name, &filesize, false, CHECK_NULL);
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   335
  if (buffer == NULL) {
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   336
    return NULL;
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   337
  }
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   338
  if (UsePerfData) {
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   339
    ClassLoader::perf_sys_classfile_bytes_read()->inc(filesize);
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   340
  }
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  // Resource allocated
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   342
  return new ClassFileStream(buffer,
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   343
                             filesize,
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   344
                             _zip_name,
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   345
                             ClassFileStream::verify);
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   346
}
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// invoke function for each entry in the zip file
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   349
void ClassPathZipEntry::contents_do(void f(const char* name, void* context), void* context) {
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   350
  JavaThread* thread = JavaThread::current();
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   351
  HandleMark  handle_mark(thread);
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   352
  ThreadToNativeFromVM ttn(thread);
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   353
  for (int n = 0; ; n++) {
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   354
    jzentry * ze = ((*GetNextEntry)(_zip, n));
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   355
    if (ze == NULL) break;
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   356
    (*f)(ze->name, context);
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   357
  }
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   358
}
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   359
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   360
DEBUG_ONLY(ClassPathImageEntry* ClassPathImageEntry::_singleton = NULL;)
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diff changeset
   361
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a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
jgeorge
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diff changeset
   362
void ClassPathImageEntry::close_jimage() {
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jgeorge
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diff changeset
   363
  if (_jimage != NULL) {
a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
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diff changeset
   364
    (*JImageClose)(_jimage);
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jgeorge
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diff changeset
   365
    _jimage = NULL;
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jgeorge
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   366
  }
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diff changeset
   367
}
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diff changeset
   368
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   369
ClassPathImageEntry::ClassPathImageEntry(JImageFile* jimage, const char* name) :
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   370
  ClassPathEntry(),
32619
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   371
  _jimage(jimage) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   372
  guarantee(jimage != NULL, "jimage file is null");
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   373
  guarantee(name != NULL, "jimage file name is null");
54257
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diff changeset
   374
  assert(_singleton == NULL, "VM supports only one jimage");
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diff changeset
   375
  DEBUG_ONLY(_singleton = this);
32619
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diff changeset
   376
  size_t len = strlen(name) + 1;
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   377
  _name = copy_path(name);
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   378
}
47f369e3c69c 8049367: Modular Run-Time Images
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   379
47f369e3c69c 8049367: Modular Run-Time Images
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   380
ClassPathImageEntry::~ClassPathImageEntry() {
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
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diff changeset
   381
  assert(_singleton == this, "must be");
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iklam
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diff changeset
   382
  DEBUG_ONLY(_singleton = NULL);
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
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diff changeset
   383
58084
cddef3bde924 8230398: Remove NULL checks before FREE_C_HEAP_ARRAY
lkorinth
parents: 57898
diff changeset
   384
  FREE_C_HEAP_ARRAY(const char, _name);
cddef3bde924 8230398: Remove NULL checks before FREE_C_HEAP_ARRAY
lkorinth
parents: 57898
diff changeset
   385
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
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diff changeset
   386
  if (_jimage != NULL) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
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diff changeset
   387
    (*JImageClose)(_jimage);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   388
    _jimage = NULL;
27562
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diff changeset
   389
  }
47f369e3c69c 8049367: Modular Run-Time Images
chegar
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diff changeset
   390
}
47f369e3c69c 8049367: Modular Run-Time Images
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parents: 27025
diff changeset
   391
54340
2221f042556d 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents: 54257
diff changeset
   392
ClassFileStream* ClassPathImageEntry::open_stream(const char* name, TRAPS) {
2221f042556d 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents: 54257
diff changeset
   393
  return open_stream_for_loader(name, ClassLoaderData::the_null_class_loader_data(), THREAD);
2221f042556d 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents: 54257
diff changeset
   394
}
2221f042556d 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents: 54257
diff changeset
   395
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   396
// For a class in a named module, look it up in the jimage file using this syntax:
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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parents: 31612
diff changeset
   397
//    /<module-name>/<package-name>/<base-class>
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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parents: 31612
diff changeset
   398
//
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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parents: 31612
diff changeset
   399
// Assumptions:
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
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diff changeset
   400
//     1. There are no unnamed modules in the jimage file.
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   401
//     2. A package is in at most one module in the jimage file.
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   402
//
54340
2221f042556d 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents: 54257
diff changeset
   403
ClassFileStream* ClassPathImageEntry::open_stream_for_loader(const char* name, ClassLoaderData* loader_data, TRAPS) {
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   404
  jlong size;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   405
  JImageLocationRef location = (*JImageFindResource)(_jimage, "", get_jimage_version_string(), name, &size);
31608
b5cb9a07591a 8080511: Refresh of jimage support
jfdenise
parents: 30764
diff changeset
   406
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   407
  if (location == 0) {
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   408
    ResourceMark rm;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   409
    const char* pkg_name = ClassLoader::package_from_name(name);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   410
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   411
    if (pkg_name != NULL) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   412
      if (!Universe::is_module_initialized()) {
42636
aafc434ba580 8169734: Update uses of string "java.base" to macro
rprotacio
parents: 42634
diff changeset
   413
        location = (*JImageFindResource)(_jimage, JAVA_BASE_NAME, get_jimage_version_string(), name, &size);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   414
      } else {
54340
2221f042556d 8221351: Crash in KlassFactory::check_shared_class_file_load_hook
iklam
parents: 54257
diff changeset
   415
        PackageEntry* package_entry = ClassLoader::get_package_entry(name, loader_data, CHECK_NULL);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   416
        if (package_entry != NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   417
          ResourceMark rm;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   418
          // Get the module name
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   419
          ModuleEntry* module = package_entry->module();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   420
          assert(module != NULL, "Boot classLoader package missing module");
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   421
          assert(module->is_named(), "Boot classLoader package is in unnamed module");
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   422
          const char* module_name = module->name()->as_C_string();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   423
          if (module_name != NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   424
            location = (*JImageFindResource)(_jimage, module_name, get_jimage_version_string(), name, &size);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   425
          }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   426
        }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   427
      }
31608
b5cb9a07591a 8080511: Refresh of jimage support
jfdenise
parents: 30764
diff changeset
   428
    }
b5cb9a07591a 8080511: Refresh of jimage support
jfdenise
parents: 30764
diff changeset
   429
  }
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   430
  if (location != 0) {
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   431
    if (UsePerfData) {
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   432
      ClassLoader::perf_sys_classfile_bytes_read()->inc(size);
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   433
    }
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   434
    char* data = NEW_RESOURCE_ARRAY(char, size);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   435
    (*JImageGetResource)(_jimage, location, data, size);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
   436
    // Resource allocated
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   437
    assert(this == (ClassPathImageEntry*)ClassLoader::get_jrt_entry(), "must be");
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
   438
    return new ClassFileStream((u1*)data,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
   439
                               (int)size,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
   440
                               _name,
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   441
                               ClassFileStream::verify,
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   442
                               true); // from_boot_loader_modules_image
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   443
  }
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   444
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   445
  return NULL;
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   446
}
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   447
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   448
JImageLocationRef ClassLoader::jimage_find_resource(JImageFile* jf,
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   449
                                                    const char* module_name,
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   450
                                                    const char* file_name,
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   451
                                                    jlong &size) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   452
  return ((*JImageFindResource)(jf, module_name, get_jimage_version_string(), file_name, &size));
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   453
}
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
   454
47673
6126617b8508 8185160: -XX:DumpLoadedClassList omits graal classes
iklam
parents: 47564
diff changeset
   455
bool ClassPathImageEntry::is_modules_image() const {
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   456
  assert(this == _singleton, "VM supports a single jimage");
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   457
  assert(this == (ClassPathImageEntry*)ClassLoader::get_jrt_entry(), "must be used for jrt entry");
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   458
  return true;
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   459
}
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   460
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   461
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   462
void ClassLoader::exit_with_path_failure(const char* error, const char* message) {
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
   463
  Arguments::assert_is_dumping_archive();
38151
fffedc5e5cf8 8154110: Update class* and safepoint* logging subsystems
mockner
parents: 38145
diff changeset
   464
  tty->print_cr("Hint: enable -Xlog:class+path=info to diagnose the failure");
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   465
  vm_exit_during_initialization(error, message);
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
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   469
ModuleClassPathList::ModuleClassPathList(Symbol* module_name) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   470
  _module_name = module_name;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   471
  _module_first_entry = NULL;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   472
  _module_last_entry = NULL;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   473
}
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   474
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   475
ModuleClassPathList::~ModuleClassPathList() {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   476
  // Clean out each ClassPathEntry on list
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   477
  ClassPathEntry* e = _module_first_entry;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   478
  while (e != NULL) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   479
    ClassPathEntry* next_entry = e->next();
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   480
    delete e;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   481
    e = next_entry;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   482
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   483
}
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   484
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   485
void ModuleClassPathList::add_to_list(ClassPathEntry* new_entry) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   486
  if (new_entry != NULL) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   487
    if (_module_last_entry == NULL) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   488
      _module_first_entry = _module_last_entry = new_entry;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   489
    } else {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   490
      _module_last_entry->set_next(new_entry);
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   491
      _module_last_entry = new_entry;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   492
    }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   493
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   494
}
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   495
36364
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   496
void ClassLoader::trace_class_path(const char* msg, const char* name) {
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   497
  LogTarget(Info, class, path) lt;
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   498
  if (lt.is_enabled()) {
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   499
    LogStream ls(lt);
36364
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   500
    if (msg) {
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   501
      ls.print("%s", msg);
36364
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   502
    }
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   503
    if (name) {
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   504
      if (strlen(name) < 256) {
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   505
        ls.print("%s", name);
36364
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   506
      } else {
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   507
        // For very long paths, we need to print each character separately,
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   508
        // as print_cr() has a length limit
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   509
        while (name[0] != '\0') {
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   510
          ls.print("%c", name[0]);
36364
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   511
          name++;
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   512
        }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   513
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   514
    }
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46560
diff changeset
   515
    ls.cr();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   516
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   517
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   518
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
void ClassLoader::setup_bootstrap_search_path() {
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   520
  const char* sys_class_path = Arguments::get_sysclasspath();
50962
dbe8aa90d4dd 8205946: JVM crash after call to ClassLoader::setup_bootstrap_search_path()
ccheung
parents: 50939
diff changeset
   521
  assert(sys_class_path != NULL, "System boot class path must not be NULL");
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   522
  if (PrintSharedArchiveAndExit) {
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   523
    // 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
   524
    // the same as the bootcp of the shared archive.
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   525
  } else {
36364
5971776598e5 8150103: Convert TraceClassPaths to Unified Logging
mockner
parents: 35917
diff changeset
   526
    trace_class_path("bootstrap loader class path=", sys_class_path);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   527
  }
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   528
  setup_boot_search_path(sys_class_path);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   529
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   531
#if INCLUDE_CDS
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   532
void ClassLoader::setup_app_search_path(const char *class_path) {
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
   533
  Arguments::assert_is_dumping_archive();
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   534
57865
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   535
  ResourceMark rm;
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   536
  ClasspathStream cp_stream(class_path);
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   537
57865
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   538
  while (cp_stream.has_next()) {
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   539
    const char* path = cp_stream.get_next();
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   540
    update_class_path_entry_list(path, false, false, false);
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   541
  }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   542
}
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   543
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   544
void ClassLoader::add_to_module_path_entries(const char* path,
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   545
                                             ClassPathEntry* entry) {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   546
  assert(entry != NULL, "ClassPathEntry should not be NULL");
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
   547
  Arguments::assert_is_dumping_archive();
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   548
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   549
  // The entry does not exist, add to the list
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   550
  if (_module_path_entries == NULL) {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   551
    assert(_last_module_path_entry == NULL, "Sanity");
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   552
    _module_path_entries = _last_module_path_entry = entry;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   553
  } else {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   554
    _last_module_path_entry->set_next(entry);
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   555
    _last_module_path_entry = entry;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   556
  }
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   557
}
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   558
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   559
// Add a module path to the _module_path_entries list.
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   560
void ClassLoader::update_module_path_entry_list(const char *path, TRAPS) {
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
   561
  Arguments::assert_is_dumping_archive();
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   562
  struct stat st;
50254
61657d4a99e5 8203354: assert in ClassLoader::update_module_path_entry_list() could have incorrect message
ccheung
parents: 50206
diff changeset
   563
  if (os::stat(path, &st) != 0) {
61657d4a99e5 8203354: assert in ClassLoader::update_module_path_entry_list() could have incorrect message
ccheung
parents: 50206
diff changeset
   564
    tty->print_cr("os::stat error %d (%s). CDS dump aborted (path was \"%s\").",
61657d4a99e5 8203354: assert in ClassLoader::update_module_path_entry_list() could have incorrect message
ccheung
parents: 50206
diff changeset
   565
      errno, os::errno_name(errno), path);
61657d4a99e5 8203354: assert in ClassLoader::update_module_path_entry_list() could have incorrect message
ccheung
parents: 50206
diff changeset
   566
    vm_exit_during_initialization();
61657d4a99e5 8203354: assert in ClassLoader::update_module_path_entry_list() could have incorrect message
ccheung
parents: 50206
diff changeset
   567
  }
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   568
  // File or directory found
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   569
  ClassPathEntry* new_entry = NULL;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   570
  new_entry = create_class_path_entry(path, &st, true /* throw_exception */,
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   571
                                      false /*is_boot_append */, false /* from_class_path_attr */, CHECK);
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   572
  if (new_entry == NULL) {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   573
    return;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   574
  }
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   575
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   576
  add_to_module_path_entries(path, new_entry);
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   577
  return;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   578
}
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   579
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   580
void ClassLoader::setup_module_search_path(const char* path, TRAPS) {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   581
  update_module_path_entry_list(path, THREAD);
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
   582
}
52960
a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
jgeorge
parents: 52934
diff changeset
   583
53899
bae1944fc279 8219574: Minimal VM build failure after JDK-8219414
shade
parents: 53851
diff changeset
   584
#endif // INCLUDE_CDS
bae1944fc279 8219574: Minimal VM build failure after JDK-8219414
shade
parents: 53851
diff changeset
   585
52960
a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
jgeorge
parents: 52934
diff changeset
   586
void ClassLoader::close_jrt_image() {
53899
bae1944fc279 8219574: Minimal VM build failure after JDK-8219414
shade
parents: 53851
diff changeset
   587
  // Not applicable for exploded builds
bae1944fc279 8219574: Minimal VM build failure after JDK-8219414
shade
parents: 53851
diff changeset
   588
  if (!ClassLoader::has_jrt_entry()) return;
52960
a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
jgeorge
parents: 52934
diff changeset
   589
  _jrt_entry->close_jimage();
a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
jgeorge
parents: 52934
diff changeset
   590
}
a6182c464b31 8200613: SA: jstack throws UnmappedAddressException with a CDS core file
jgeorge
parents: 52934
diff changeset
   591
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   592
// Construct the array of module/path pairs as specified to --patch-module
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   593
// for the boot loader to search ahead of the jimage, if the class being
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   594
// loaded is defined to a module that has been specified to --patch-module.
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   595
void ClassLoader::setup_patch_mod_entries() {
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   596
  Thread* THREAD = Thread::current();
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   597
  GrowableArray<ModulePatchPath*>* patch_mod_args = Arguments::get_patch_mod_prefix();
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   598
  int num_of_entries = patch_mod_args->length();
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   599
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   600
  // Set up the boot loader's _patch_mod_entries list
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   601
  _patch_mod_entries = new (ResourceObj::C_HEAP, mtModule) GrowableArray<ModuleClassPathList*>(num_of_entries, true);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   602
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   603
  for (int i = 0; i < num_of_entries; i++) {
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   604
    const char* module_name = (patch_mod_args->at(i))->module_name();
54847
59ea39bb2809 8223657: Remove unused THREAD argument from SymbolTable functions
coleenp
parents: 54786
diff changeset
   605
    Symbol* const module_sym = SymbolTable::new_symbol(module_name);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   606
    assert(module_sym != NULL, "Failed to obtain Symbol for module name");
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   607
    ModuleClassPathList* module_cpl = new ModuleClassPathList(module_sym);
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   608
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   609
    char* class_path = (patch_mod_args->at(i))->path_string();
57865
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   610
    ResourceMark rm(THREAD);
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   611
    ClasspathStream cp_stream(class_path);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   612
57865
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   613
    while (cp_stream.has_next()) {
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   614
      const char* path = cp_stream.get_next();
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   615
      struct stat st;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   616
      if (os::stat(path, &st) == 0) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   617
        // File or directory found
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   618
        ClassPathEntry* new_entry = create_class_path_entry(path, &st, false, false, false, CHECK);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   619
        // If the path specification is valid, enter it into this module's list
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   620
        if (new_entry != NULL) {
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   621
          module_cpl->add_to_list(new_entry);
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   622
        }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   623
      }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   624
    }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   625
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   626
    // Record the module into the list of --patch-module entries only if
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   627
    // valid ClassPathEntrys have been created
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   628
    if (module_cpl->module_first_entry() != NULL) {
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   629
      _patch_mod_entries->push(module_cpl);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   630
    }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   631
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   632
}
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   633
42634
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   634
// Determine whether the module has been patched via the command-line
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   635
// option --patch-module
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   636
bool ClassLoader::is_in_patch_mod_entries(Symbol* module_name) {
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   637
  if (_patch_mod_entries != NULL && _patch_mod_entries->is_nonempty()) {
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   638
    int table_len = _patch_mod_entries->length();
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   639
    for (int i = 0; i < table_len; i++) {
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   640
      ModuleClassPathList* patch_mod = _patch_mod_entries->at(i);
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   641
      if (module_name->fast_compare(patch_mod->module_name()) == 0) {
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   642
        return true;
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   643
      }
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   644
    }
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   645
  }
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   646
  return false;
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   647
}
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
   648
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   649
// Set up the _jrt_entry if present and boot append path
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   650
void ClassLoader::setup_boot_search_path(const char *class_path) {
57865
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   651
  EXCEPTION_MARK;
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   652
  ResourceMark rm(THREAD);
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   653
  ClasspathStream cp_stream(class_path);
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   654
  bool set_base_piece = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
48470
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   656
#if INCLUDE_CDS
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
   657
  if (Arguments::is_dumping_archive()) {
48470
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   658
    if (!Arguments::has_jimage()) {
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   659
      vm_exit_during_initialization("CDS is not supported in exploded JDK build", NULL);
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   660
    }
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   661
  }
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   662
#endif
1d24b76cf639 8191374: Improve error message when CDS is not supported on exploded build
iklam
parents: 48016
diff changeset
   663
57865
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   664
  while (cp_stream.has_next()) {
489b8e142559 8230011: Consolidate duplicated classpath parsing code in classLoader.cpp
iklam
parents: 55524
diff changeset
   665
    const char* path = cp_stream.get_next();
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   666
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   667
    if (set_base_piece) {
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   668
      // The first time through the bootstrap_search setup, it must be determined
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   669
      // what the base or core piece of the boot loader search is.  Either a java runtime
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   670
      // image is present or this is an exploded module build situation.
42636
aafc434ba580 8169734: Update uses of string "java.base" to macro
rprotacio
parents: 42634
diff changeset
   671
      assert(string_ends_with(path, MODULES_IMAGE_NAME) || string_ends_with(path, JAVA_BASE_NAME),
aafc434ba580 8169734: Update uses of string "java.base" to macro
rprotacio
parents: 42634
diff changeset
   672
             "Incorrect boot loader search path, no java runtime image or " JAVA_BASE_NAME " exploded build");
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   673
      struct stat st;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   674
      if (os::stat(path, &st) == 0) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   675
        // Directory found
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   676
        ClassPathEntry* new_entry = create_class_path_entry(path, &st, false, false, false, CHECK);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   677
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   678
        // Check for a jimage
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   679
        if (Arguments::has_jimage()) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   680
          assert(_jrt_entry == NULL, "should not setup bootstrap class search path twice");
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
   681
          _jrt_entry = new_entry;
47673
6126617b8508 8185160: -XX:DumpLoadedClassList omits graal classes
iklam
parents: 47564
diff changeset
   682
          assert(new_entry != NULL && new_entry->is_modules_image(), "No java runtime image present");
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   683
          assert(_jrt_entry->jimage() != NULL, "No java runtime image");
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   684
        }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   685
      } else {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   686
        // If path does not exist, exit
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   687
        vm_exit_during_initialization("Unable to establish the boot loader search path", path);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   688
      }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   689
      set_base_piece = false;
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   690
    } else {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   691
      // Every entry on the system boot class path after the initial base piece,
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   692
      // which is set by os::set_boot_path(), is considered an appended entry.
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   693
      update_class_path_entry_list(path, false, true, false);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   694
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   698
// During an exploded modules build, each module defined to the boot loader
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   699
// will be added to the ClassLoader::_exploded_entries array.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   700
void ClassLoader::add_to_exploded_build_list(Symbol* module_sym, TRAPS) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   701
  assert(!ClassLoader::has_jrt_entry(), "Exploded build not applicable");
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
   702
  assert(_exploded_entries != NULL, "_exploded_entries was not initialized");
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   703
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   704
  // Find the module's symbol
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   705
  ResourceMark rm(THREAD);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   706
  const char *module_name = module_sym->as_C_string();
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   707
  const char *home = Arguments::get_java_home();
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   708
  const char file_sep = os::file_separator()[0];
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   709
  // 10 represents the length of "modules" + 2 file separators + \0
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   710
  size_t len = strlen(home) + strlen(module_name) + 10;
49747
376792a6e9da 8201265: Native memory leak in ClassLoader::add_to_exploded_build_list
hseigel
parents: 49739
diff changeset
   711
  char *path = NEW_RESOURCE_ARRAY(char, len);
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   712
  jio_snprintf(path, len, "%s%cmodules%c%s", home, file_sep, file_sep, module_name);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   713
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   714
  struct stat st;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   715
  if (os::stat(path, &st) == 0) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   716
    // Directory found
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   717
    ClassPathEntry* new_entry = create_class_path_entry(path, &st, false, false, false, CHECK);
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   718
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   719
    // If the path specification is valid, enter it into this module's list.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   720
    // There is no need to check for duplicate modules in the exploded entry list,
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   721
    // since no two modules with the same name can be defined to the boot loader.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   722
    // This is checked at module definition time in Modules::define_module.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   723
    if (new_entry != NULL) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   724
      ModuleClassPathList* module_cpl = new ModuleClassPathList(module_sym);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   725
      module_cpl->add_to_list(new_entry);
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
   726
      {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
   727
        MutexLocker ml(Module_lock, THREAD);
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
   728
        _exploded_entries->push(module_cpl);
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
   729
      }
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   730
      log_info(class, load)("path: %s", path);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   731
    }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   732
  }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   733
}
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   734
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   735
ClassPathEntry* ClassLoader::create_class_path_entry(const char *path, const struct stat* st,
37220
ec74292c0c9c 8075253: Multiversion JAR feature: CDS does not support MV-JARs
ccheung
parents: 36508
diff changeset
   736
                                                     bool throw_exception,
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   737
                                                     bool is_boot_append,
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   738
                                                     bool from_class_path_attr,
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   739
                                                     TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
  JavaThread* thread = JavaThread::current();
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   741
  ClassPathEntry* new_entry = NULL;
41281
e1dc38ba642f 8164011: --patch-module support for CDS
ccheung
parents: 41183
diff changeset
   742
  if ((st->st_mode & S_IFMT) == S_IFREG) {
39210
178947361a68 8153876: Replace 4K stack allocations with Resource allocations
ccheung
parents: 38733
diff changeset
   743
    ResourceMark rm(thread);
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   744
    // Regular file, should be a zip or jimage file
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
    // Canonicalized filename
39210
178947361a68 8153876: Replace 4K stack allocations with Resource allocations
ccheung
parents: 38733
diff changeset
   746
    char* canonical_path = NEW_RESOURCE_ARRAY_IN_THREAD(thread, char, JVM_MAXPATHLEN);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
    if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
      // This matches the classic VM
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   749
      if (throw_exception) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   750
        THROW_MSG_(vmSymbols::java_io_IOException(), "Bad pathname", NULL);
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   751
      } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   752
        return NULL;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   753
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
    }
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   755
    jint error;
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   756
    JImageFile* jimage =(*JImageOpen)(canonical_path, &error);
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   757
    if (jimage != NULL) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
   758
      new_entry = new ClassPathImageEntry(jimage, canonical_path);
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   759
    } else {
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   760
      char* error_msg = NULL;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   761
      jzfile* zip;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   762
      {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   763
        // enable call to C land
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   764
        ThreadToNativeFromVM ttn(thread);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   765
        HandleMark hm(thread);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   766
        zip = (*ZipOpen)(canonical_path, &error_msg);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   767
      }
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   768
      if (zip != NULL && error_msg == NULL) {
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   769
        new_entry = new ClassPathZipEntry(zip, path, is_boot_append, from_class_path_attr);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
      } else {
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   771
        char *msg;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   772
        if (error_msg == NULL) {
39210
178947361a68 8153876: Replace 4K stack allocations with Resource allocations
ccheung
parents: 38733
diff changeset
   773
          msg = NEW_RESOURCE_ARRAY_IN_THREAD(thread, char, strlen(path) + 128); ;
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   774
          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
   775
        } else {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   776
          int len = (int)(strlen(path) + strlen(error_msg) + 128);
39210
178947361a68 8153876: Replace 4K stack allocations with Resource allocations
ccheung
parents: 38733
diff changeset
   777
          msg = NEW_RESOURCE_ARRAY_IN_THREAD(thread, char, len); ;
31612
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   778
          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
   779
        }
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   780
        // 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
   781
        if (throw_exception && is_init_completed()) {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   782
          THROW_MSG_(vmSymbols::java_lang_ClassNotFoundException(), msg, NULL);
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   783
        } else {
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   784
          return NULL;
930eee00deb0 8073423: Remove LazyClassPathEntry support if no longer needed
hseigel
parents: 31608
diff changeset
   785
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
      }
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
   787
    }
38151
fffedc5e5cf8 8154110: Update class* and safepoint* logging subsystems
mockner
parents: 38145
diff changeset
   788
    log_info(class, path)("opened: %s", path);
fffedc5e5cf8 8154110: Update class* and safepoint* logging subsystems
mockner
parents: 38145
diff changeset
   789
    log_info(class, load)("opened: %s", path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
    // Directory
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   792
    new_entry = new ClassPathDirEntry(path);
38151
fffedc5e5cf8 8154110: Update class* and safepoint* logging subsystems
mockner
parents: 38145
diff changeset
   793
    log_info(class, load)("path: %s", path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  }
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   795
  return new_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
// Create a class path zip entry for a given path (return NULL if not found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
// or zip/JAR file cannot be opened)
37220
ec74292c0c9c 8075253: Multiversion JAR feature: CDS does not support MV-JARs
ccheung
parents: 36508
diff changeset
   801
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path, bool is_boot_append) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
  // check for a regular file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
  if (os::stat(path, &st) == 0) {
41281
e1dc38ba642f 8164011: --patch-module support for CDS
ccheung
parents: 41183
diff changeset
   805
    if ((st.st_mode & S_IFMT) == S_IFREG) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
      char canonical_path[JVM_MAXPATHLEN];
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
   807
      if (get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
        char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
        jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
          // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
          JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
          ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
          HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
          zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
        if (zip != NULL && error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
          // create using canonical path
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   819
          return new ClassPathZipEntry(zip, canonical_path, is_boot_append, false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
// returns true if entry already on class path
41741
2f5b8bbcb18c 8166931: Do not include classes which are unusable during run time in the classlist file
ccheung
parents: 41715
diff changeset
   828
bool ClassLoader::contains_append_entry(const char* name) {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   829
  ClassPathEntry* e = _first_append_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
    // assume zip entries have been canonicalized
41741
2f5b8bbcb18c 8166931: Do not include classes which are unusable during run time in the classlist file
ccheung
parents: 41715
diff changeset
   832
    if (strcmp(name, e->name()) == 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   840
void ClassLoader::add_to_boot_append_entries(ClassPathEntry *new_entry) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
  if (new_entry != NULL) {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   842
    if (_last_append_entry == NULL) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   843
      assert(_first_append_entry == NULL, "boot loader's append class path entry list not empty");
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   844
      _first_append_entry = _last_append_entry = new_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    } else {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   846
      _last_append_entry->set_next(new_entry);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   847
      _last_append_entry = new_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
  }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   850
}
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   851
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   852
// Record the path entries specified in -cp during dump time. The recorded
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   853
// information will be used at runtime for loading the archived app classes.
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   854
//
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   855
// Note that at dump time, ClassLoader::_app_classpath_entries are NOT used for
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   856
// loading app classes. Instead, the app class are loaded by the
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   857
// jdk/internal/loader/ClassLoaders$AppClassLoader instance.
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   858
void ClassLoader::add_to_app_classpath_entries(const char* path,
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   859
                                               ClassPathEntry* entry,
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   860
                                               bool check_for_duplicates) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   861
#if INCLUDE_CDS
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   862
  assert(entry != NULL, "ClassPathEntry should not be NULL");
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   863
  ClassPathEntry* e = _app_classpath_entries;
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   864
  if (check_for_duplicates) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   865
    while (e != NULL) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   866
      if (strcmp(e->name(), entry->name()) == 0) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   867
        // entry already exists
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   868
        return;
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   869
      }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   870
      e = e->next();
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   871
    }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   872
  }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   873
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   874
  // The entry does not exist, add to the list
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   875
  if (_app_classpath_entries == NULL) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   876
    assert(_last_app_classpath_entry == NULL, "Sanity");
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   877
    _app_classpath_entries = _last_app_classpath_entry = entry;
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   878
  } else {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   879
    _last_app_classpath_entry->set_next(entry);
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   880
    _last_app_classpath_entry = entry;
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   881
  }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   882
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   883
  if (entry->is_jar_file()) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   884
    ClassLoaderExt::process_jar_manifest(entry, check_for_duplicates);
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   885
  }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   886
#endif
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   887
}
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   888
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   889
// 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
   890
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
   891
                                               bool check_for_duplicates,
37220
ec74292c0c9c 8075253: Multiversion JAR feature: CDS does not support MV-JARs
ccheung
parents: 36508
diff changeset
   892
                                               bool is_boot_append,
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   893
                                               bool from_class_path_attr,
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   894
                                               bool throw_exception) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
  struct stat st;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   896
  if (os::stat(path, &st) == 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
    // File or directory found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
    ClassPathEntry* new_entry = NULL;
19685
3df9b00b5d5f 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents: 19158
diff changeset
   899
    Thread* THREAD = Thread::current();
55524
b279ae9843b8 8211723: AppCDS: referring to a jar file in any way other than exactly how it was done during dumping doesn't work
ccheung
parents: 54927
diff changeset
   900
    new_entry = create_class_path_entry(path, &st, throw_exception, is_boot_append, from_class_path_attr, CHECK_(false));
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   901
    if (new_entry == NULL) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   902
      return false;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   903
    }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   904
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
   905
    // Do not reorder the bootclasspath which would break get_system_package().
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
    // Add new entry to linked list
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   907
    if (is_boot_append) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   908
      add_to_boot_append_entries(new_entry);
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   909
    } else {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
   910
      add_to_app_classpath_entries(path, new_entry, check_for_duplicates);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
    }
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   912
    return true;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   913
  } else {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
   914
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   918
static void print_module_entry_table(const GrowableArray<ModuleClassPathList*>* const module_list) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   919
  ResourceMark rm;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   920
  int num_of_entries = module_list->length();
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   921
  for (int i = 0; i < num_of_entries; i++) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   922
    ClassPathEntry* e;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   923
    ModuleClassPathList* mpl = module_list->at(i);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   924
    tty->print("%s=", mpl->module_name()->as_C_string());
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   925
    e = mpl->module_first_entry();
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   926
    while (e != NULL) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   927
      tty->print("%s", e->name());
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   928
      e = e->next();
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   929
      if (e != NULL) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   930
        tty->print("%s", os::path_separator());
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   931
      }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   932
    }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   933
    tty->print(" ;");
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   934
  }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   935
}
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   936
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
void ClassLoader::print_bootclasspath() {
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   938
  ClassPathEntry* e;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
  tty->print("[bootclasspath= ");
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   940
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   941
  // Print --patch-module module/path specifications first
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   942
  if (_patch_mod_entries != NULL) {
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
   943
    print_module_entry_table(_patch_mod_entries);
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   944
  }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   945
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   946
  // [jimage | exploded modules build]
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   947
  if (has_jrt_entry()) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   948
    // Print the location of the java runtime image
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   949
    tty->print("%s ;", _jrt_entry->name());
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   950
  } else {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   951
    // Print exploded module build path specifications
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   952
    if (_exploded_entries != NULL) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   953
      print_module_entry_table(_exploded_entries);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   954
    }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   955
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
   956
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   957
  // appended entries
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
   958
  e = _first_append_entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
    tty->print("%s ;", e->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   966
void* ClassLoader::dll_lookup(void* lib, const char* name, const char* path) {
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   967
  void* func = os::dll_lookup(lib, name);
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   968
  if (func == NULL) {
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   969
    char msg[256] = "";
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   970
    jio_snprintf(msg, sizeof(msg), "Could not resolve \"%s\"", name);
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   971
    vm_exit_during_initialization(msg, path);
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   972
  }
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   973
  return func;
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   974
}
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   975
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   976
void ClassLoader::load_java_library() {
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   977
  assert(CanonicalizeEntry == NULL, "should not load java library twice");
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   978
  void *javalib_handle = os::native_java_library();
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   979
  if (javalib_handle == NULL) {
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   980
    vm_exit_during_initialization("Unable to load java library", NULL);
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   981
  }
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   982
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   983
  CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, dll_lookup(javalib_handle, "Canonicalize", NULL));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   984
}
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   985
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
void ClassLoader::load_zip_library() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
  assert(ZipOpen == NULL, "should not load zip library twice");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
  char path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
  char ebuf[1024];
14471
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   990
  void* handle = NULL;
47089
27050b653624 8186072: dll_build_name returns true even if file is missing.
goetz
parents: 46727
diff changeset
   991
  if (os::dll_locate_lib(path, sizeof(path), Arguments::get_dll_dir(), "zip")) {
14471
f3a6b82e25cf 8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents: 13728
diff changeset
   992
    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
   993
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
  if (handle == NULL) {
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   995
    vm_exit_during_initialization("Unable to load zip library", path);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   998
  ZipOpen = CAST_TO_FN_PTR(ZipOpen_t, dll_lookup(handle, "ZIP_Open", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
   999
  ZipClose = CAST_TO_FN_PTR(ZipClose_t, dll_lookup(handle, "ZIP_Close", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1000
  FindEntry = CAST_TO_FN_PTR(FindEntry_t, dll_lookup(handle, "ZIP_FindEntry", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1001
  ReadEntry = CAST_TO_FN_PTR(ReadEntry_t, dll_lookup(handle, "ZIP_ReadEntry", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1002
  GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, dll_lookup(handle, "ZIP_GetNextEntry", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1003
  Crc32 = CAST_TO_FN_PTR(Crc32_t, dll_lookup(handle, "ZIP_CRC32", path));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1006
void ClassLoader::load_jimage_library() {
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1007
  assert(JImageOpen == NULL, "should not load jimage library twice");
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1008
  char path[JVM_MAXPATHLEN];
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1009
  char ebuf[1024];
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1010
  void* handle = NULL;
47089
27050b653624 8186072: dll_build_name returns true even if file is missing.
goetz
parents: 46727
diff changeset
  1011
  if (os::dll_locate_lib(path, sizeof(path), Arguments::get_dll_dir(), "jimage")) {
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1012
    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
  1013
  }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1014
  if (handle == NULL) {
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1015
    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
  1016
  }
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1017
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1018
  JImageOpen = CAST_TO_FN_PTR(JImageOpen_t, dll_lookup(handle, "JIMAGE_Open", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1019
  JImageClose = CAST_TO_FN_PTR(JImageClose_t, dll_lookup(handle, "JIMAGE_Close", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1020
  JImagePackageToModule = CAST_TO_FN_PTR(JImagePackageToModule_t, dll_lookup(handle, "JIMAGE_PackageToModule", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1021
  JImageFindResource = CAST_TO_FN_PTR(JImageFindResource_t, dll_lookup(handle, "JIMAGE_FindResource", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1022
  JImageGetResource = CAST_TO_FN_PTR(JImageGetResource_t, dll_lookup(handle, "JIMAGE_GetResource", path));
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1023
  JImageResourceIterator = CAST_TO_FN_PTR(JImageResourceIterator_t, dll_lookup(handle, "JIMAGE_ResourceIterator", path));
27562
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1024
}
47f369e3c69c 8049367: Modular Run-Time Images
chegar
parents: 27025
diff changeset
  1025
27025
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
  1026
int ClassLoader::crc32(int crc, const char* buf, int len) {
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
  1027
  return (*Crc32)(crc, (const jbyte*)buf, len);
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
  1028
}
f4805f778f16 8044269: Analysis of archive files.
jiangli
parents: 26583
diff changeset
  1029
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1030
// Function add_package extracts the package from the fully qualified class name
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1031
// and checks if the package is in the boot loader's package entry table.  If so,
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1032
// then it sets the classpath_index in the package entry record.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1033
//
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1034
// The classpath_index field is used to find the entry on the boot loader class
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1035
// path for packages with classes loaded by the boot loader from -Xbootclasspath/a
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1036
// in an unnamed module.  It is also used to indicate (for all packages whose
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1037
// classes are loaded by the boot loader) that at least one of the package's
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1038
// classes has been loaded.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1039
bool ClassLoader::add_package(const char *fullq_class_name, s2 classpath_index, TRAPS) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1040
  assert(fullq_class_name != NULL, "just checking");
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1041
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1042
  // Get package name from fully qualified class name.
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 39210
diff changeset
  1043
  ResourceMark rm;
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 39210
diff changeset
  1044
  const char *cp = package_from_name(fullq_class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
  if (cp != NULL) {
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 39210
diff changeset
  1046
    PackageEntryTable* pkg_entry_tbl = ClassLoaderData::the_null_class_loader_data()->packages();
54847
59ea39bb2809 8223657: Remove unused THREAD argument from SymbolTable functions
coleenp
parents: 54786
diff changeset
  1047
    TempNewSymbol pkg_symbol = SymbolTable::new_symbol(cp);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1048
    PackageEntry* pkg_entry = pkg_entry_tbl->lookup_only(pkg_symbol);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1049
    if (pkg_entry != NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1050
      assert(classpath_index != -1, "Unexpected classpath_index");
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1051
      pkg_entry->set_classpath_index(classpath_index);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1052
    } else {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1053
      return false;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1054
    }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1055
  }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1056
  return true;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1057
}
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1058
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1059
oop ClassLoader::get_system_package(const char* name, TRAPS) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1060
  // Look up the name in the boot loader's package entry table.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1061
  if (name != NULL) {
54847
59ea39bb2809 8223657: Remove unused THREAD argument from SymbolTable functions
coleenp
parents: 54786
diff changeset
  1062
    TempNewSymbol package_sym = SymbolTable::new_symbol(name);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1063
    // Look for the package entry in the boot loader's package entry table.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1064
    PackageEntry* package =
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1065
      ClassLoaderData::the_null_class_loader_data()->packages()->lookup_only(package_sym);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1066
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1067
    // Return NULL if package does not exist or if no classes in that package
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1068
    // have been loaded.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1069
    if (package != NULL && package->has_loaded_class()) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1070
      ModuleEntry* module = package->module();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1071
      if (module->location() != NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1072
        ResourceMark rm(THREAD);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1073
        Handle ml = java_lang_String::create_from_str(
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1074
          module->location()->as_C_string(), THREAD);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1075
        return ml();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1076
      }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1077
      // Return entry on boot loader class path.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1078
      Handle cph = java_lang_String::create_from_str(
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1079
        ClassLoader::classpath_entry(package->classpath_index())->name(), THREAD);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1080
      return cph();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1081
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1086
objArrayOop ClassLoader::get_system_packages(TRAPS) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1087
  ResourceMark rm(THREAD);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1088
  // List of pointers to PackageEntrys that have loaded classes.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1089
  GrowableArray<PackageEntry*>* loaded_class_pkgs = new GrowableArray<PackageEntry*>(50);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
  {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1091
    MutexLocker ml(Module_lock, THREAD);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1092
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1093
    PackageEntryTable* pe_table =
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1094
      ClassLoaderData::the_null_class_loader_data()->packages();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1096
    // Collect the packages that have at least one loaded class.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1097
    for (int x = 0; x < pe_table->table_size(); x++) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1098
      for (PackageEntry* package_entry = pe_table->bucket(x);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1099
           package_entry != NULL;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1100
           package_entry = package_entry->next()) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1101
        if (package_entry->has_loaded_class()) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1102
          loaded_class_pkgs->append(package_entry);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1103
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1109
  // Allocate objArray and fill with java.lang.String
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1110
  objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(),
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1111
                                           loaded_class_pkgs->length(), CHECK_NULL);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1112
  objArrayHandle result(THREAD, r);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1113
  for (int x = 0; x < loaded_class_pkgs->length(); x++) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1114
    PackageEntry* package_entry = loaded_class_pkgs->at(x);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1115
    Handle str = java_lang_String::create_from_symbol(package_entry->name(), CHECK_NULL);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1116
    result->obj_at_put(x, str());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
  }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1118
  return result();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1121
// caller needs ResourceMark
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1122
const char* ClassLoader::file_name_for_class_name(const char* class_name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1123
                                                  int class_name_len) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1124
  assert(class_name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1125
  assert((int)strlen(class_name) == class_name_len, "invariant");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1127
  static const char class_suffix[] = ".class";
52891
e1fcdc7ead4d 8214707: Prevent GCC 8 from reporting error in ClassLoader::file_name_for_class_name()
dchuyko
parents: 52300
diff changeset
  1128
  size_t class_suffix_len = sizeof(class_suffix);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1129
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1130
  char* const file_name = NEW_RESOURCE_ARRAY(char,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1131
                                             class_name_len +
52891
e1fcdc7ead4d 8214707: Prevent GCC 8 from reporting error in ClassLoader::file_name_for_class_name()
dchuyko
parents: 52300
diff changeset
  1132
                                             class_suffix_len); // includes term NULL
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1133
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1134
  strncpy(file_name, class_name, class_name_len);
52891
e1fcdc7ead4d 8214707: Prevent GCC 8 from reporting error in ClassLoader::file_name_for_class_name()
dchuyko
parents: 52300
diff changeset
  1135
  strncpy(&file_name[class_name_len], class_suffix, class_suffix_len);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1136
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1137
  return file_name;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1138
}
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1139
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1140
ClassPathEntry* find_first_module_cpe(ModuleEntry* mod_entry,
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1141
                                      const GrowableArray<ModuleClassPathList*>* const module_list) {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1142
  int num_of_entries = module_list->length();
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1143
  const Symbol* class_module_name = mod_entry->name();
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1144
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1145
  // Loop through all the modules in either the patch-module or exploded entries looking for module
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1146
  for (int i = 0; i < num_of_entries; i++) {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1147
    ModuleClassPathList* module_cpl = module_list->at(i);
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1148
    Symbol* module_cpl_name = module_cpl->module_name();
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1149
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1150
    if (module_cpl_name->fast_compare(class_module_name) == 0) {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1151
      // Class' module has been located.
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1152
      return module_cpl->module_first_entry();
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1153
    }
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1154
  }
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1155
  return NULL;
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1156
}
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1157
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1158
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1159
// Search either the patch-module or exploded build entries for class.
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1160
ClassFileStream* ClassLoader::search_module_entries(const GrowableArray<ModuleClassPathList*>* const module_list,
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1161
                                                    const char* const class_name,
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1162
                                                    const char* const file_name,
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1163
                                                    TRAPS) {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1164
  ClassFileStream* stream = NULL;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1165
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1166
  // Find the class' defining module in the boot loader's module entry table
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1167
  PackageEntry* pkg_entry = get_package_entry(class_name, ClassLoaderData::the_null_class_loader_data(), CHECK_NULL);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1168
  ModuleEntry* mod_entry = (pkg_entry != NULL) ? pkg_entry->module() : NULL;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1169
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1170
  // If the module system has not defined java.base yet, then
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1171
  // classes loaded are assumed to be defined to java.base.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1172
  // When java.base is eventually defined by the module system,
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1173
  // all packages of classes that have been previously loaded
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1174
  // are verified in ModuleEntryTable::verify_javabase_packages().
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1175
  if (!Universe::is_module_initialized() &&
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1176
      !ModuleEntryTable::javabase_defined() &&
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1177
      mod_entry == NULL) {
41183
207b92e69457 8163406: The fixup_module_list must be protected by Module_lock when inserting new entries
lfoltan
parents: 40244
diff changeset
  1178
    mod_entry = ModuleEntryTable::javabase_moduleEntry();
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1179
  }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1180
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1181
  // The module must be a named module
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1182
  ClassPathEntry* e = NULL;
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1183
  if (mod_entry != NULL && mod_entry->is_named()) {
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1184
    if (module_list == _exploded_entries) {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1185
      // The exploded build entries can be added to at any time so a lock is
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1186
      // needed when searching them.
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1187
      assert(!ClassLoader::has_jrt_entry(), "Must be exploded build");
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1188
      MutexLocker ml(Module_lock, THREAD);
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1189
      e = find_first_module_cpe(mod_entry, module_list);
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1190
    } else {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1191
      e = find_first_module_cpe(mod_entry, module_list);
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1192
    }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1193
  }
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1194
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1195
  // Try to load the class from the module's ClassPathEntry list.
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1196
  while (e != NULL) {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1197
    stream = e->open_stream(file_name, CHECK_NULL);
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1198
    // No context.check is required since CDS is not supported
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1199
    // for an exploded modules build or if --patch-module is specified.
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1200
    if (NULL != stream) {
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1201
      return stream;
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1202
    }
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1203
    e = e->next();
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1204
  }
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1205
  // If the module was located, break out even if the class was not
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1206
  // located successfully from that module's ClassPathEntry list.
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1207
  // There will not be another valid entry for that module.
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1208
  return NULL;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1209
}
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1210
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1211
// Called by the boot classloader to load classes
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1212
InstanceKlass* ClassLoader::load_class(Symbol* name, bool search_append_only, TRAPS) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1213
  assert(name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1214
  assert(THREAD->is_Java_thread(), "must be a JavaThread");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1215
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1216
  ResourceMark rm(THREAD);
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1217
  HandleMark hm(THREAD);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1218
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1219
  const char* const class_name = name->as_C_string();
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1220
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1221
  EventMark m("loading class %s", class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1223
  const char* const file_name = file_name_for_class_name(class_name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1224
                                                         name->utf8_length());
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1225
  assert(file_name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1226
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1227
  // Lookup stream for parsing .class file
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
  ClassFileStream* stream = NULL;
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1229
  s2 classpath_index = 0;
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1230
  ClassPathEntry* e = NULL;
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1231
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1232
  // If search_append_only is true, boot loader visibility boundaries are
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1233
  // set to be _first_append_entry to the end. This includes:
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1234
  //   [-Xbootclasspath/a]; [jvmti appended entries]
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1235
  //
50206
adec398d9051 8193332: MetaspaceShared::check_shared_class_loader_type is not used during archive creation
iklam
parents: 50079
diff changeset
  1236
  // If search_append_only is false, boot loader visibility boundaries are
adec398d9051 8193332: MetaspaceShared::check_shared_class_loader_type is not used during archive creation
iklam
parents: 50079
diff changeset
  1237
  // set to be the --patch-module entries plus the base piece. This includes:
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1238
  //   [--patch-module=<module>=<file>(<pathsep><file>)*]; [jimage | exploded module build]
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1239
  //
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1240
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1241
  // Load Attempt #1: --patch-module
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1242
  // Determine the class' defining module.  If it appears in the _patch_mod_entries,
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1243
  // attempt to load the class from those locations specific to the module.
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1244
  // Specifications to --patch-module can contain a partial number of classes
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1245
  // that are part of the overall module definition.  So if a particular class is not
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1246
  // found within its module specification, the search should continue to Load Attempt #2.
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1247
  // Note: The --patch-module entries are never searched if the boot loader's
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1248
  //       visibility boundary is limited to only searching the append entries.
41281
e1dc38ba642f 8164011: --patch-module support for CDS
ccheung
parents: 41183
diff changeset
  1249
  if (_patch_mod_entries != NULL && !search_append_only) {
42876
ff8ff9dcccec 8168797: do not load any archived classes from a patched module
jiangli
parents: 42636
diff changeset
  1250
    // At CDS dump time, the --patch-module entries are ignored. That means a
ff8ff9dcccec 8168797: do not load any archived classes from a patched module
jiangli
parents: 42636
diff changeset
  1251
    // class is still loaded from the runtime image even if it might
ff8ff9dcccec 8168797: do not load any archived classes from a patched module
jiangli
parents: 42636
diff changeset
  1252
    // appear in the _patch_mod_entries. The runtime shared class visibility
ff8ff9dcccec 8168797: do not load any archived classes from a patched module
jiangli
parents: 42636
diff changeset
  1253
    // check will determine if a shared class is visible based on the runtime
ff8ff9dcccec 8168797: do not load any archived classes from a patched module
jiangli
parents: 42636
diff changeset
  1254
    // environemnt, including the runtime --patch-module setting.
54927
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1255
    //
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1256
    // DynamicDumpSharedSpaces requires UseSharedSpaces to be enabled. Since --patch-module
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1257
    // is not supported with UseSharedSpaces, it is not supported with DynamicDumpSharedSpaces.
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1258
    assert(!DynamicDumpSharedSpaces, "sanity");
41281
e1dc38ba642f 8164011: --patch-module support for CDS
ccheung
parents: 41183
diff changeset
  1259
    if (!DumpSharedSpaces) {
e1dc38ba642f 8164011: --patch-module support for CDS
ccheung
parents: 41183
diff changeset
  1260
      stream = search_module_entries(_patch_mod_entries, class_name, file_name, CHECK_NULL);
e1dc38ba642f 8164011: --patch-module support for CDS
ccheung
parents: 41183
diff changeset
  1261
    }
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1262
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1263
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1264
  // Load Attempt #2: [jimage | exploded build]
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1265
  if (!search_append_only && (NULL == stream)) {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1266
    if (has_jrt_entry()) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1267
      e = _jrt_entry;
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1268
      stream = _jrt_entry->open_stream(file_name, CHECK_NULL);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1269
    } else {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1270
      // Exploded build - attempt to locate class in its defining module's location.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1271
      assert(_exploded_entries != NULL, "No exploded build entries present");
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1272
      stream = search_module_entries(_exploded_entries, class_name, file_name, CHECK_NULL);
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1273
    }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1274
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1275
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1276
  // Load Attempt #3: [-Xbootclasspath/a]; [jvmti appended entries]
50206
adec398d9051 8193332: MetaspaceShared::check_shared_class_loader_type is not used during archive creation
iklam
parents: 50079
diff changeset
  1277
  if (search_append_only && (NULL == stream)) {
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1278
    // For the boot loader append path search, the starting classpath_index
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1279
    // for the appended piece is always 1 to account for either the
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1280
    // _jrt_entry or the _exploded_entries.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1281
    assert(classpath_index == 0, "The classpath_index has been incremented incorrectly");
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1282
    classpath_index = 1;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1283
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1284
    e = _first_append_entry;
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1285
    while (e != NULL) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1286
      stream = e->open_stream(file_name, CHECK_NULL);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1287
      if (NULL != stream) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1288
        break;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1289
      }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1290
      e = e->next();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1291
      ++classpath_index;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1295
  if (NULL == stream) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1296
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
50039
9fec54fe663d 8197954: Remove unnecessary intermediary APIs from AppCDS implementation
iklam
parents: 49982
diff changeset
  1299
  stream->set_verify(ClassLoaderExt::should_verify(classpath_index));
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1300
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1301
  ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1302
  Handle protection_domain;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1303
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1304
  InstanceKlass* result = KlassFactory::create_from_stream(stream,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1305
                                                           name,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1306
                                                           loader_data,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1307
                                                           protection_domain,
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 50962
diff changeset
  1308
                                                           NULL, // unsafe_anonymous_host
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1309
                                                           NULL, // cp_patches
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46289
diff changeset
  1310
                                                           THREAD);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1311
  if (HAS_PENDING_EXCEPTION) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1312
    if (DumpSharedSpaces) {
58110
85e1de070bef 8186988: use log_warning() and log_error() instead of tty->print_cr for CDS warning and error messages
ccheung
parents: 58084
diff changeset
  1313
      log_error(cds)("Preload Error: Failed to load %s", class_name);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1314
    }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1315
    return NULL;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1316
  }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34319
diff changeset
  1317
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1318
  if (!add_package(file_name, classpath_index, THREAD)) {
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1319
    return NULL;
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1320
  }
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1321
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1322
  return result;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1325
#if INCLUDE_CDS
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1326
char* ClassLoader::skip_uri_protocol(char* source) {
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1327
  if (strncmp(source, "file:", 5) == 0) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1328
    // file: protocol path could start with file:/ or file:///
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1329
    // locate the char after all the forward slashes
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1330
    int offset = 5;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1331
    while (*(source + offset) == '/') {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1332
        offset++;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1333
    }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1334
    source += offset;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1335
  // for non-windows platforms, move back one char as the path begins with a '/'
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1336
#ifndef _WINDOWS
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1337
    source -= 1;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1338
#endif
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1339
  } else if (strncmp(source, "jrt:/", 5) == 0) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1340
    source += 5;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1341
  }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1342
  return source;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1343
}
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1344
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1345
// Record the shared classpath index and loader type for classes loaded
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1346
// by the builtin loaders at dump time.
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1347
void ClassLoader::record_result(InstanceKlass* ik, const ClassFileStream* stream, TRAPS) {
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
  1348
  Arguments::assert_is_dumping_archive();
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1349
  assert(stream != NULL, "sanity");
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1350
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 50962
diff changeset
  1351
  if (ik->is_unsafe_anonymous()) {
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 50962
diff changeset
  1352
    // We do not archive unsafe anonymous classes.
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1353
    return;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1354
  }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1355
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1356
  oop loader = ik->class_loader();
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1357
  char* src = (char*)stream->source();
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1358
  if (src == NULL) {
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1359
    if (loader == NULL) {
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1360
      // JFR classes
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1361
      ik->set_shared_classpath_index(0);
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1362
      ik->set_class_loader_type(ClassLoader::BOOT_LOADER);
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1363
    }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1364
    return;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1365
  }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1366
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1367
  assert(has_jrt_entry(), "CDS dumping does not support exploded JDK build");
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1368
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1369
  ResourceMark rm(THREAD);
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1370
  int classpath_index = -1;
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1371
  PackageEntry* pkg_entry = ik->package();
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1372
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1373
  if (FileMapInfo::get_number_of_shared_paths() > 0) {
50079
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1374
    char* canonical_path_table_entry = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, JVM_MAXPATHLEN);
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1375
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1376
    // save the path from the file: protocol or the module name from the jrt: protocol
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1377
    // if no protocol prefix is found, path is the same as stream->source()
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1378
    char* path = skip_uri_protocol(src);
50079
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1379
    char* canonical_class_src_path = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, JVM_MAXPATHLEN);
52300
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1380
    bool success = get_canonical_path(path, canonical_class_src_path, JVM_MAXPATHLEN);
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1381
    // The path is from the ClassFileStream. Since a ClassFileStream has been created successfully in functions
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1382
    // such as ClassLoader::load_class(), its source path must be valid.
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1383
    assert(success, "must be valid path");
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1384
    for (int i = 0; i < FileMapInfo::get_number_of_shared_paths(); i++) {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1385
      SharedClassPathEntry* ent = FileMapInfo::shared_path(i);
52300
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1386
      success = get_canonical_path(ent->name(), canonical_path_table_entry, JVM_MAXPATHLEN);
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1387
      // A shared path has been validated during its creation in ClassLoader::create_class_path_entry(),
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1388
      // it must be valid here.
9e29d8388514 8209598: Clean up how messages are printed when CDS aborts start-up
ccheung
parents: 52148
diff changeset
  1389
      assert(success, "must be valid path");
50079
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1390
      // If the path (from the class stream source) is the same as the shared
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1391
      // class or module path, then we have a match.
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1392
      if (strcmp(canonical_path_table_entry, canonical_class_src_path) == 0) {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1393
        // NULL pkg_entry and pkg_entry in an unnamed module implies the class
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1394
        // is from the -cp or boot loader append path which consists of -Xbootclasspath/a
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1395
        // and jvmti appended entries.
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1396
        if ((pkg_entry == NULL) || (pkg_entry->in_unnamed_module())) {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1397
          // Ensure the index is within the -cp range before assigning
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1398
          // to the classpath_index.
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1399
          if (SystemDictionary::is_system_class_loader(loader) &&
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1400
              (i >= ClassLoaderExt::app_class_paths_start_index()) &&
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1401
              (i < ClassLoaderExt::app_module_paths_start_index())) {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1402
            classpath_index = i;
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1403
            break;
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1404
          } else {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1405
            if ((i >= 1) &&
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1406
                (i < ClassLoaderExt::app_class_paths_start_index())) {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1407
              // The class must be from boot loader append path which consists of
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1408
              // -Xbootclasspath/a and jvmti appended entries.
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1409
              assert(loader == NULL, "sanity");
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1410
              classpath_index = i;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1411
              break;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1412
            }
50079
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1413
          }
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1414
        } else {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1415
          // A class from a named module from the --module-path. Ensure the index is
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1416
          // within the --module-path range before assigning to the classpath_index.
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1417
          if ((pkg_entry != NULL) && !(pkg_entry->in_unnamed_module()) && (i > 0)) {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1418
            if (i >= ClassLoaderExt::app_module_paths_start_index() &&
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1419
                i < FileMapInfo::get_number_of_shared_paths()) {
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1420
              classpath_index = i;
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1421
              break;
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1422
            }
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1423
          }
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1424
        }
50079
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1425
      }
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1426
      // for index 0 and the stream->source() is the modules image or has the jrt: protocol.
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1427
      // The class must be from the runtime modules image.
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
  1428
      if (i == 0 && (stream->from_boot_loader_modules_image() || string_starts_with(src, "jrt:"))) {
50079
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1429
        classpath_index = i;
5830a17d9fc8 8202289: Non-empty directory in module path is not handled properly at CDS/AppCDS dump time
ccheung
parents: 50039
diff changeset
  1430
        break;
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1431
      }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1432
    }
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1433
47991
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1434
    // No path entry found for this class. Must be a shared class loaded by the
a474466c4fdb 8187118: Remove appending -cp path to the boot class path at AppCDS dump time
jiangli
parents: 47765
diff changeset
  1435
    // user defined classloader.
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1436
    if (classpath_index < 0) {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1437
      assert(ik->shared_classpath_index() < 0, "Sanity");
54927
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1438
      ik->set_shared_classpath_index(UNREGISTERED_INDEX);
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1439
      SystemDictionaryShared::set_shared_class_misc_info(ik, (ClassFileStream*)stream);
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1440
      return;
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1441
    }
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1442
  } else {
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1443
    // The shared path table is set up after module system initialization.
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1444
    // The path table contains no entry before that. Any classes loaded prior
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1445
    // to the setup of the shared path table must be from the modules image.
54257
21702e87efdf 8220095: Assertion failure when symlink (with different name) is used for lib/modules file
iklam
parents: 53899
diff changeset
  1446
    assert(stream->from_boot_loader_modules_image(), "stream must be loaded by boot loader from modules image");
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1447
    assert(FileMapInfo::get_number_of_shared_paths() == 0, "shared path table must not have been setup");
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1448
    classpath_index = 0;
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1449
  }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1450
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1451
  const char* const class_name = ik->name()->as_C_string();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1452
  const char* const file_name = file_name_for_class_name(class_name,
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1453
                                                         ik->name()->utf8_length());
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1454
  assert(file_name != NULL, "invariant");
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1455
50039
9fec54fe663d 8197954: Remove unnecessary intermediary APIs from AppCDS implementation
iklam
parents: 49982
diff changeset
  1456
  ClassLoaderExt::record_result(classpath_index, ik, THREAD);
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1457
}
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1458
#endif // INCLUDE_CDS
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47089
diff changeset
  1459
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
// Initialize the class loader's access to methods in libzip.  Parse and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
// process the boot classpath into a list ClassPathEntry objects.  Once
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
// this list has been created, it must not change order (see class PackageInfo)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
// it can be appended to and is by jvmti and the kernel vm.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
void ClassLoader::initialize() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
  if (UsePerfData) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
    // jvmstat performance counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
    NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
    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
  1472
    NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
    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
  1474
    NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
    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
  1476
    NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
    NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
    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
  1479
    NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1480
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1481
    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
  1482
    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
  1483
    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
  1484
    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
  1485
    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
  1486
    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
  1487
    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
  1488
    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
  1489
    NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
  1490
    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
  1491
    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
  1492
    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
  1493
    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
  1494
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
    // The following performance counters are added for measuring the impact
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
    // of the bug fix of 6365597. They are mainly focused on finding out
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
    // the behavior of system & user-defined classloader lock, whether
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
    // ClassLoader.loadClass/findClass is being called synchronized or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
    NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
                        "systemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
    NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
                        "nonSystemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
    NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
                        "jvmFindLoadedClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
    NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
                        "jvmDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
    NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
                        "jniDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
    NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
                        "unsafeDefineClassCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1516
  // lookup java library entry points
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1517
  load_java_library();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
  // lookup zip library entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
  load_zip_library();
58842
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1520
  // jimage library entry points are loaded below, in lookup_vm_options
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1521
  setup_bootstrap_search_path();
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1522
}
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1523
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1524
char* lookup_vm_resource(JImageFile *jimage, const char *jimage_version, const char *path) {
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1525
  jlong size;
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1526
  JImageLocationRef location = (*JImageFindResource)(jimage, "java.base", jimage_version, path, &size);
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1527
  if (location == 0)
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1528
    return NULL;
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1529
  char *val = NEW_C_HEAP_ARRAY(char, size+1, mtClass);
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1530
  (*JImageGetResource)(jimage, location, val, size);
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1531
  val[size] = '\0';
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1532
  return val;
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1533
}
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1534
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1535
// Lookup VM options embedded in the modules jimage file
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1536
char* ClassLoader::lookup_vm_options() {
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1537
  jint error;
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1538
  char modules_path[JVM_MAXPATHLEN];
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1539
  const char* fileSep = os::file_separator();
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1540
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1541
  // Initialize jimage library entry points
32619
47acec81dcca 8087181: Move native jimage code to its own library (maybe libjimage)
jlaskey
parents: 31612
diff changeset
  1542
  load_jimage_library();
58842
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1543
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1544
  jio_snprintf(modules_path, JVM_MAXPATHLEN, "%s%slib%smodules", Arguments::get_java_home(), fileSep, fileSep);
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1545
  JImageFile* jimage =(*JImageOpen)(modules_path, &error);
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1546
  if (jimage == NULL) {
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1547
    return NULL;
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1548
  }
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1549
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1550
  const char *jimage_version = get_jimage_version_string();
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1551
  char *options = lookup_vm_resource(jimage, jimage_version, "jdk/internal/vm/options");
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1552
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1553
  (*JImageClose)(jimage);
6c255334120d 8232080: jlink plugins for vendor information and run-time options
mr
parents: 58722
diff changeset
  1554
  return options;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1557
#if INCLUDE_CDS
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1558
void ClassLoader::initialize_shared_path() {
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
  1559
  if (Arguments::is_dumping_archive()) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1560
    ClassLoaderExt::setup_search_paths();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1561
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1562
}
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1563
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1564
void ClassLoader::initialize_module_path(TRAPS) {
58447
319173c62caa 8231606: _method_ordering is not set during CDS dynamic dump time
ccheung
parents: 58110
diff changeset
  1565
  if (Arguments::is_dumping_archive()) {
49739
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1566
    ClassLoaderExt::setup_module_paths(THREAD);
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1567
    FileMapInfo::allocate_shared_path_table();
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1568
  }
00805b129186 8194812: Extend class-data sharing to support the module path
ccheung
parents: 49612
diff changeset
  1569
}
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25949
diff changeset
  1570
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1571
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1572
jlong ClassLoader::classloader_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1573
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1574
    Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1575
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1576
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1577
jlong ClassLoader::class_init_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1578
  return UsePerfData ? _perf_classes_inited->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1579
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1580
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1581
jlong ClassLoader::class_init_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1582
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1583
    Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1584
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1585
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1586
jlong ClassLoader::class_verify_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1587
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1588
    Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1589
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
jlong ClassLoader::class_link_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
  return UsePerfData ? _perf_classes_linked->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1594
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1595
jlong ClassLoader::class_link_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1596
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
    Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1599
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
int ClassLoader::compute_Object_vtable() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1601
  // hardwired for JDK1.2 -- would need to duplicate class file parsing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
  // code to determine actual value from file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
  // Would be value '11' if finals were in vtable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
  int JDK_1_2_Object_vtable_size = 5;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1605
  return JDK_1_2_Object_vtable_size * vtableEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1608
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1609
void classLoader_init1() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1610
  ClassLoader::initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1611
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1613
// Complete the ClassPathEntry setup for the boot loader
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1614
void ClassLoader::classLoader_init2(TRAPS) {
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1615
  // Setup the list of module/path pairs for --patch-module processing
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1616
  // This must be done after the SymbolTable is created in order
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1617
  // to use fast_compare on module names instead of a string compare.
40244
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1618
  if (Arguments::get_patch_mod_prefix() != NULL) {
b3055c216762 8136930: Simplify use of module-system options by custom launchers
hseigel
parents: 40016
diff changeset
  1619
    setup_patch_mod_entries();
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1620
  }
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1621
42634
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
  1622
  // Create the ModuleEntry for java.base (must occur after setup_patch_mod_entries
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
  1623
  // to successfully determine if java.base has been patched)
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
  1624
  create_javabase();
7459867ebf98 8168850: Mark module entries that have been specified by --patch-module
rprotacio
parents: 41741
diff changeset
  1625
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1626
  // Setup the initial java.base/path pair for the exploded build entries.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1627
  // As more modules are defined during module system initialization, more
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1628
  // entries will be added to the exploded build array.
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1629
  if (!has_jrt_entry()) {
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1630
    assert(!DumpSharedSpaces, "DumpSharedSpaces not supported with exploded module builds");
54927
1512d88b24c6 8207812: Implement Dynamic CDS Archive
ccheung
parents: 54847
diff changeset
  1631
    assert(!DynamicDumpSharedSpaces, "DynamicDumpSharedSpaces not supported with exploded module builds");
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1632
    assert(!UseSharedSpaces, "UsedSharedSpaces not supported with exploded module builds");
46463
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1633
    // Set up the boot loader's _exploded_entries list.  Note that this gets
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1634
    // done before loading any classes, by the same thread that will
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1635
    // subsequently do the first class load. So, no lock is needed for this.
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1636
    assert(_exploded_entries == NULL, "Should only get initialized once");
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1637
    _exploded_entries = new (ResourceObj::C_HEAP, mtModule)
4bd2ca84df7a 8178604: JVM does not allow defining boot loader modules in exploded build after module system initialization
hseigel
parents: 46404
diff changeset
  1638
      GrowableArray<ModuleClassPathList*>(EXPLODED_ENTRY_SIZE, true);
40013
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1639
    add_to_exploded_build_list(vmSymbols::java_base(), CHECK);
943cf01a6b82 8154239: -Xbootclasspath/a breaks exploded build
lfoltan
parents: 39223
diff changeset
  1640
  }
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1641
}
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1642
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1643
bool ClassLoader::get_canonical_path(const char* orig, char* out, int len) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1644
  assert(orig != NULL && out != NULL && len > 0, "bad arguments");
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1645
  JavaThread* THREAD = JavaThread::current();
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1646
  JNIEnv* env = THREAD->jni_environment();
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1647
  ResourceMark rm(THREAD);
26419
25abc4a3285c 8056971: Minor class loading clean-up
iklam
parents: 26135
diff changeset
  1648
58879
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1649
  // os::native_path writes into orig_copy
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1650
  char* orig_copy = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, strlen(orig)+1);
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1651
  strcpy(orig_copy, orig);
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1652
  if ((CanonicalizeEntry)(env, os::native_path(orig_copy), out, len) < 0) {
717ebfbac29d 8232980: Cleanup initialization of function pointers into java.base from classloader.cpp
clanger
parents: 58842
diff changeset
  1653
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1658
void ClassLoader::create_javabase() {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1659
  Thread* THREAD = Thread::current();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1660
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1661
  // Create java.base's module entry for the boot
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1662
  // class loader prior to loading j.l.Ojbect.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1663
  ClassLoaderData* null_cld = ClassLoaderData::the_null_class_loader_data();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1664
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1665
  // Get module entry table
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1666
  ModuleEntryTable* null_cld_modules = null_cld->modules();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1667
  if (null_cld_modules == NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1668
    vm_exit_during_initialization("No ModuleEntryTable for the boot class loader");
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1669
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1670
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1671
  {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1672
    MutexLocker ml(Module_lock, THREAD);
53471
525f212f1bda 8217660: Refactor module related locked_create_entry_or_null() functions
hseigel
parents: 52960
diff changeset
  1673
    ModuleEntry* jb_module = null_cld_modules->locked_create_entry(Handle(),
46404
ae62ba99a1a7 8165896: Use "open" flag from JVM_DefineModule to export all module packages
rprotacio
parents: 46329
diff changeset
  1674
                               false, vmSymbols::java_base(), NULL, NULL, null_cld);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1675
    if (jb_module == NULL) {
42636
aafc434ba580 8169734: Update uses of string "java.base" to macro
rprotacio
parents: 42634
diff changeset
  1676
      vm_exit_during_initialization("Unable to create ModuleEntry for " JAVA_BASE_NAME);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1677
    }
41183
207b92e69457 8163406: The fixup_module_list must be protected by Module_lock when inserting new entries
lfoltan
parents: 40244
diff changeset
  1678
    ModuleEntryTable::set_javabase_moduleEntry(jb_module);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1679
  }
37773
e5b3e9732c3c 8154956: Module system implementation refresh (4/2016)
alanb
parents: 37490
diff changeset
  1680
}
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36364
diff changeset
  1681
7910
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1682
// 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
  1683
// 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
  1684
void PerfClassTraceTime::initialize() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1685
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1686
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1687
  if (_eventp != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1688
    // increment the event counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1689
    _eventp->inc();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1690
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1691
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1692
  // stop the current active thread-local timer to measure inclusive time
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1693
  _prev_active_event = -1;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1694
  for (int i=0; i < EVENT_TYPE_COUNT; i++) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1695
     if (_timers[i].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1696
       assert(_prev_active_event == -1, "should have only one active timer");
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1697
       _prev_active_event = i;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1698
       _timers[i].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1699
     }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1700
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1701
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1702
  if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1703
    // start the inclusive timer if not recursively called
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1704
    _t.start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1705
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1706
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1707
  // start thread-local timer of the given event type
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1708
   if (!_timers[_event_type].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1709
    _timers[_event_type].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1710
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1711
}
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1712
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1713
PerfClassTraceTime::~PerfClassTraceTime() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1714
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1715
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1716
  // stop the thread-local timer as the event completes
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1717
  // 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
  1718
  _timers[_event_type].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1719
  jlong selftime = _timers[_event_type].ticks();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1720
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1721
  if (_prev_active_event >= 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1722
    _timers[_prev_active_event].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1723
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1724
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1725
  if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1726
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1727
  // increment the counters only on the leaf call
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1728
  _t.stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1729
  _timep->inc(_t.ticks());
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1730
  if (_selftimep != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1731
    _selftimep->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1732
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1733
  // 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
  1734
  ClassLoader::perf_accumulated_time()->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1735
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1736
  // reset the timer
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1737
  _timers[_event_type].reset();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1738
}