author | chegar |
Wed, 03 Dec 2014 14:21:14 +0000 | |
changeset 27562 | 47f369e3c69c |
parent 27025 | f4805f778f16 |
child 27711 | 0b952ebd3953 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
|
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
|
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
1 | 22 |
* |
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*/ |
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24 |
||
7397 | 25 |
#include "precompiled.hpp" |
26 |
#include "classfile/classFileParser.hpp" |
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#include "classfile/classFileStream.hpp" |
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#include "classfile/classLoader.hpp" |
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#include "classfile/classLoaderExt.hpp" |
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#include "classfile/classLoaderData.inline.hpp" |
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#include "classfile/imageFile.hpp" |
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#include "classfile/javaClasses.hpp" |
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#if INCLUDE_CDS |
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#include "classfile/sharedPathsMiscInfo.hpp" |
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#include "classfile/sharedClassUtil.hpp" |
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#endif |
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#include "classfile/systemDictionary.hpp" |
38 |
#include "classfile/vmSymbols.hpp" |
|
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#include "compiler/compileBroker.hpp" |
|
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#include "gc_interface/collectedHeap.inline.hpp" |
|
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#include "interpreter/bytecodeStream.hpp" |
|
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#include "interpreter/oopMapCache.hpp" |
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#include "memory/allocation.inline.hpp" |
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#include "memory/filemap.hpp" |
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#include "memory/generation.hpp" |
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#include "memory/oopFactory.hpp" |
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#include "memory/universe.inline.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/instanceRefKlass.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/symbol.hpp" |
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#include "prims/jvm_misc.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/compilationPolicy.hpp" |
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#include "runtime/fprofiler.hpp" |
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#include "runtime/handles.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/init.hpp" |
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#include "runtime/interfaceSupport.hpp" |
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#include "runtime/java.hpp" |
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#include "runtime/javaCalls.hpp" |
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#include "runtime/os.hpp" |
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#include "runtime/threadCritical.hpp" |
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#include "runtime/timer.hpp" |
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#include "services/management.hpp" |
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#include "services/threadService.hpp" |
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#include "utilities/events.hpp" |
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#include "utilities/hashtable.hpp" |
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#include "utilities/hashtable.inline.hpp" |
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// Entry points in zip.dll for loading zip/jar file entries and image file entries |
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typedef void * * (JNICALL *ZipOpen_t)(const char *name, char **pmsg); |
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typedef void (JNICALL *ZipClose_t)(jzfile *zip); |
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typedef jzentry* (JNICALL *FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen); |
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typedef jboolean (JNICALL *ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf); |
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typedef jboolean (JNICALL *ReadMappedEntry_t)(jzfile *zip, jzentry *entry, unsigned char **buf, char *namebuf); |
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typedef jzentry* (JNICALL *GetNextEntry_t)(jzfile *zip, jint n); |
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typedef jboolean (JNICALL *ZipInflateFully_t)(void *inBuf, jlong inLen, void *outBuf, jlong outLen, char **pmsg); |
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typedef jint (JNICALL *Crc32_t)(jint crc, const jbyte *buf, jint len); |
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|
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static ZipOpen_t ZipOpen = NULL; |
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static ZipClose_t ZipClose = NULL; |
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static FindEntry_t FindEntry = NULL; |
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static ReadEntry_t ReadEntry = NULL; |
|
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static ReadMappedEntry_t ReadMappedEntry = NULL; |
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static GetNextEntry_t GetNextEntry = NULL; |
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static canonicalize_fn_t CanonicalizeEntry = NULL; |
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static ZipInflateFully_t ZipInflateFully = NULL; |
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static Crc32_t Crc32 = NULL; |
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|
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// Globals |
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93 |
||
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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; |
118 |
PerfCounter* ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL; |
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PerfCounter* ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL; |
|
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PerfCounter* ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL; |
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PerfCounter* ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL; |
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PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = NULL; |
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PerfCounter* ClassLoader::_isUnsyncloadClass = NULL; |
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PerfCounter* ClassLoader::_load_instance_class_failCounter = NULL; |
|
125 |
||
126 |
ClassPathEntry* ClassLoader::_first_entry = NULL; |
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ClassPathEntry* ClassLoader::_last_entry = NULL; |
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int ClassLoader::_num_entries = 0; |
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PackageHashtable* ClassLoader::_package_hash_table = NULL; |
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#if INCLUDE_CDS |
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SharedPathsMiscInfo* ClassLoader::_shared_paths_misc_info = NULL; |
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#endif |
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// helper routines |
135 |
bool string_starts_with(const char* str, const char* str_to_find) { |
|
136 |
size_t str_len = strlen(str); |
|
137 |
size_t str_to_find_len = strlen(str_to_find); |
|
138 |
if (str_to_find_len > str_len) { |
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139 |
return false; |
|
140 |
} |
|
141 |
return (strncmp(str, str_to_find, str_to_find_len) == 0); |
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142 |
} |
|
143 |
||
144 |
bool string_ends_with(const char* str, const char* str_to_find) { |
|
145 |
size_t str_len = strlen(str); |
|
146 |
size_t str_to_find_len = strlen(str_to_find); |
|
147 |
if (str_to_find_len > str_len) { |
|
148 |
return false; |
|
149 |
} |
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150 |
return (strncmp(str + (str_len - str_to_find_len), str_to_find, str_to_find_len) == 0); |
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151 |
} |
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152 |
||
153 |
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154 |
MetaIndex::MetaIndex(char** meta_package_names, int num_meta_package_names) { |
|
155 |
if (num_meta_package_names == 0) { |
|
156 |
_meta_package_names = NULL; |
|
157 |
_num_meta_package_names = 0; |
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158 |
} else { |
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_meta_package_names = NEW_C_HEAP_ARRAY(char*, num_meta_package_names, mtClass); |
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_num_meta_package_names = num_meta_package_names; |
161 |
memcpy(_meta_package_names, meta_package_names, num_meta_package_names * sizeof(char*)); |
|
162 |
} |
|
163 |
} |
|
164 |
||
165 |
||
166 |
MetaIndex::~MetaIndex() { |
|
13195 | 167 |
FREE_C_HEAP_ARRAY(char*, _meta_package_names, mtClass); |
1 | 168 |
} |
169 |
||
170 |
||
171 |
bool MetaIndex::may_contain(const char* class_name) { |
|
172 |
if ( _num_meta_package_names == 0) { |
|
173 |
return false; |
|
174 |
} |
|
175 |
size_t class_name_len = strlen(class_name); |
|
176 |
for (int i = 0; i < _num_meta_package_names; i++) { |
|
177 |
char* pkg = _meta_package_names[i]; |
|
178 |
size_t pkg_len = strlen(pkg); |
|
179 |
size_t min_len = MIN2(class_name_len, pkg_len); |
|
180 |
if (!strncmp(class_name, pkg, min_len)) { |
|
181 |
return true; |
|
182 |
} |
|
183 |
} |
|
184 |
return false; |
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185 |
} |
|
186 |
||
187 |
||
188 |
ClassPathEntry::ClassPathEntry() { |
|
189 |
set_next(NULL); |
|
190 |
} |
|
191 |
||
192 |
||
193 |
bool ClassPathEntry::is_lazy() { |
|
194 |
return false; |
|
195 |
} |
|
196 |
||
26419 | 197 |
ClassPathDirEntry::ClassPathDirEntry(const char* dir) : ClassPathEntry() { |
198 |
char* copy = NEW_C_HEAP_ARRAY(char, strlen(dir)+1, mtClass); |
|
199 |
strcpy(copy, dir); |
|
200 |
_dir = copy; |
|
1 | 201 |
} |
202 |
||
203 |
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ClassFileStream* ClassPathDirEntry::open_stream(const char* name, TRAPS) { |
1 | 205 |
// construct full path name |
206 |
char path[JVM_MAXPATHLEN]; |
|
207 |
if (jio_snprintf(path, sizeof(path), "%s%s%s", _dir, os::file_separator(), name) == -1) { |
|
208 |
return NULL; |
|
209 |
} |
|
210 |
// check if file exists |
|
211 |
struct stat st; |
|
212 |
if (os::stat(path, &st) == 0) { |
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#if INCLUDE_CDS |
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if (DumpSharedSpaces) { |
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// We have already check in ClassLoader::check_shared_classpath() that the directory is empty, so |
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// we should never find a file underneath it -- unless user has added a new file while we are running |
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// the dump, in which case let's quit! |
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218 |
ShouldNotReachHere(); |
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219 |
} |
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#endif |
1 | 221 |
// found file, open it |
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222 |
int file_handle = os::open(path, 0, 0); |
1 | 223 |
if (file_handle != -1) { |
224 |
// read contents into resource array |
|
225 |
u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size); |
|
226 |
size_t num_read = os::read(file_handle, (char*) buffer, st.st_size); |
|
227 |
// close file |
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os::close(file_handle); |
1 | 229 |
// construct ClassFileStream |
230 |
if (num_read == (size_t)st.st_size) { |
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if (UsePerfData) { |
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232 |
ClassLoader::perf_sys_classfile_bytes_read()->inc(num_read); |
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233 |
} |
1 | 234 |
return new ClassFileStream(buffer, st.st_size, _dir); // Resource allocated |
235 |
} |
|
236 |
} |
|
237 |
} |
|
238 |
return NULL; |
|
239 |
} |
|
240 |
||
241 |
||
242 |
ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name) : ClassPathEntry() { |
|
243 |
_zip = zip; |
|
26419 | 244 |
char *copy = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1, mtClass); |
245 |
strcpy(copy, zip_name); |
|
246 |
_zip_name = copy; |
|
1 | 247 |
} |
248 |
||
249 |
ClassPathZipEntry::~ClassPathZipEntry() { |
|
250 |
if (ZipClose != NULL) { |
|
251 |
(*ZipClose)(_zip); |
|
252 |
} |
|
13195 | 253 |
FREE_C_HEAP_ARRAY(char, _zip_name, mtClass); |
1 | 254 |
} |
255 |
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u1* ClassPathZipEntry::open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS) { |
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257 |
// enable call to C land |
1 | 258 |
JavaThread* thread = JavaThread::current(); |
259 |
ThreadToNativeFromVM ttn(thread); |
|
260 |
// check whether zip archive contains name |
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261 |
jint name_len; |
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262 |
jzentry* entry = (*FindEntry)(_zip, name, filesize, &name_len); |
1 | 263 |
if (entry == NULL) return NULL; |
264 |
u1* buffer; |
|
265 |
char name_buf[128]; |
|
266 |
char* filename; |
|
267 |
if (name_len < 128) { |
|
268 |
filename = name_buf; |
|
269 |
} else { |
|
270 |
filename = NEW_RESOURCE_ARRAY(char, name_len + 1); |
|
271 |
} |
|
272 |
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// file found, get pointer to the entry in mmapped jar file. |
1 | 274 |
if (ReadMappedEntry == NULL || |
275 |
!(*ReadMappedEntry)(_zip, entry, &buffer, filename)) { |
|
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// mmapped access not available, perhaps due to compression, |
1 | 277 |
// read contents into resource array |
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278 |
int size = (*filesize) + ((nul_terminate) ? 1 : 0); |
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buffer = NEW_RESOURCE_ARRAY(u1, size); |
1 | 280 |
if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL; |
281 |
} |
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282 |
|
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283 |
// return result |
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284 |
if (nul_terminate) { |
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285 |
buffer[*filesize] = 0; |
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286 |
} |
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287 |
return buffer; |
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288 |
} |
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289 |
|
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290 |
ClassFileStream* ClassPathZipEntry::open_stream(const char* name, TRAPS) { |
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291 |
jint filesize; |
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292 |
u1* buffer = open_entry(name, &filesize, false, CHECK_NULL); |
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293 |
if (buffer == NULL) { |
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294 |
return NULL; |
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295 |
} |
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296 |
if (UsePerfData) { |
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297 |
ClassLoader::perf_sys_classfile_bytes_read()->inc(filesize); |
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298 |
} |
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return new ClassFileStream(buffer, filesize, _zip_name); // Resource allocated |
1 | 300 |
} |
301 |
||
302 |
// invoke function for each entry in the zip file |
|
303 |
void ClassPathZipEntry::contents_do(void f(const char* name, void* context), void* context) { |
|
304 |
JavaThread* thread = JavaThread::current(); |
|
305 |
HandleMark handle_mark(thread); |
|
306 |
ThreadToNativeFromVM ttn(thread); |
|
307 |
for (int n = 0; ; n++) { |
|
308 |
jzentry * ze = ((*GetNextEntry)(_zip, n)); |
|
309 |
if (ze == NULL) break; |
|
310 |
(*f)(ze->name, context); |
|
311 |
} |
|
312 |
} |
|
313 |
||
26419 | 314 |
LazyClassPathEntry::LazyClassPathEntry(const char* path, const struct stat* st, bool throw_exception) : ClassPathEntry() { |
25949 | 315 |
_path = os::strdup_check_oom(path); |
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_st = *st; |
1 | 317 |
_meta_index = NULL; |
318 |
_resolved_entry = NULL; |
|
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_has_error = false; |
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_throw_exception = throw_exception; |
1 | 321 |
} |
322 |
||
25949 | 323 |
LazyClassPathEntry::~LazyClassPathEntry() { |
26419 | 324 |
os::free((void*)_path); |
25949 | 325 |
} |
326 |
||
1 | 327 |
bool LazyClassPathEntry::is_jar_file() { |
27562 | 328 |
size_t len = strlen(_path); |
329 |
if (len < 4 || strcmp(_path + len - 4, ".jar") != 0) return false; |
|
1 | 330 |
return ((_st.st_mode & S_IFREG) == S_IFREG); |
331 |
} |
|
332 |
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333 |
ClassPathEntry* LazyClassPathEntry::resolve_entry(TRAPS) { |
1 | 334 |
if (_resolved_entry != NULL) { |
335 |
return (ClassPathEntry*) _resolved_entry; |
|
336 |
} |
|
337 |
ClassPathEntry* new_entry = NULL; |
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338 |
new_entry = ClassLoader::create_class_path_entry(_path, &_st, false, _throw_exception, CHECK_NULL); |
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if (!_throw_exception && new_entry == NULL) { |
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assert(!HAS_PENDING_EXCEPTION, "must be"); |
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341 |
return NULL; |
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342 |
} |
1 | 343 |
{ |
344 |
ThreadCritical tc; |
|
345 |
if (_resolved_entry == NULL) { |
|
346 |
_resolved_entry = new_entry; |
|
347 |
return new_entry; |
|
348 |
} |
|
349 |
} |
|
350 |
assert(_resolved_entry != NULL, "bug in MT-safe resolution logic"); |
|
351 |
delete new_entry; |
|
352 |
return (ClassPathEntry*) _resolved_entry; |
|
353 |
} |
|
354 |
||
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355 |
ClassFileStream* LazyClassPathEntry::open_stream(const char* name, TRAPS) { |
1 | 356 |
if (_meta_index != NULL && |
357 |
!_meta_index->may_contain(name)) { |
|
358 |
return NULL; |
|
359 |
} |
|
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360 |
if (_has_error) { |
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361 |
return NULL; |
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362 |
} |
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363 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
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364 |
if (cpe == NULL) { |
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365 |
_has_error = true; |
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366 |
return NULL; |
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367 |
} else { |
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368 |
return cpe->open_stream(name, THREAD); |
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369 |
} |
1 | 370 |
} |
371 |
||
372 |
bool LazyClassPathEntry::is_lazy() { |
|
373 |
return true; |
|
374 |
} |
|
375 |
||
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376 |
u1* LazyClassPathEntry::open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS) { |
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377 |
if (_has_error) { |
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|
378 |
return NULL; |
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|
379 |
} |
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380 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
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381 |
if (cpe == NULL) { |
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|
382 |
_has_error = true; |
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|
383 |
return NULL; |
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|
384 |
} else if (cpe->is_jar_file()) { |
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385 |
return ((ClassPathZipEntry*)cpe)->open_entry(name, filesize, nul_terminate,THREAD); |
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|
386 |
} else { |
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|
387 |
ShouldNotReachHere(); |
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|
388 |
*filesize = 0; |
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|
389 |
return NULL; |
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|
390 |
} |
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|
391 |
} |
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|
392 |
|
27562 | 393 |
ClassPathImageEntry::ClassPathImageEntry(char* name) : ClassPathEntry(), _image(new ImageFile(name)) { |
394 |
bool opened = _image->open(); |
|
395 |
if (!opened) { |
|
396 |
_image = NULL; |
|
397 |
} |
|
398 |
} |
|
399 |
||
400 |
ClassPathImageEntry::~ClassPathImageEntry() { |
|
401 |
if (_image) { |
|
402 |
_image->close(); |
|
403 |
_image = NULL; |
|
404 |
} |
|
405 |
} |
|
406 |
||
407 |
const char* ClassPathImageEntry::name() { |
|
408 |
return _image ? _image->name() : ""; |
|
409 |
} |
|
410 |
||
411 |
ClassFileStream* ClassPathImageEntry::open_stream(const char* name, TRAPS) { |
|
412 |
u1* buffer; |
|
413 |
u8 size; |
|
414 |
_image->get_resource(name, buffer, size); |
|
415 |
||
416 |
if (buffer) { |
|
417 |
if (UsePerfData) { |
|
418 |
ClassLoader::perf_sys_classfile_bytes_read()->inc(size); |
|
419 |
} |
|
420 |
return new ClassFileStream(buffer, (int)size, (char*)name); // Resource allocated |
|
421 |
} |
|
422 |
||
423 |
return NULL; |
|
424 |
} |
|
425 |
||
426 |
#ifndef PRODUCT |
|
427 |
void ClassPathImageEntry::compile_the_world(Handle loader, TRAPS) { |
|
428 |
tty->print_cr("CompileTheWorld : Compiling all classes in %s", name()); |
|
429 |
tty->cr(); |
|
430 |
const ImageStrings strings = _image->get_strings(); |
|
431 |
// Retrieve each path component string. |
|
432 |
u4 count = _image->get_location_count(); |
|
433 |
for (u4 i = 0; i < count; i++) { |
|
434 |
u1* location_data = _image->get_location_data(i); |
|
435 |
||
436 |
if (location_data) { |
|
437 |
ImageLocation location(location_data); |
|
438 |
const char* parent = location.get_attribute(ImageLocation::ATTRIBUTE_PARENT, strings); |
|
439 |
const char* base = location.get_attribute(ImageLocation::ATTRIBUTE_BASE, strings); |
|
440 |
const char* extension = location.get_attribute(ImageLocation::ATTRIBUTE_EXTENSION, strings); |
|
441 |
assert((strlen(parent) + strlen(base) + strlen(extension)) < JVM_MAXPATHLEN, "path exceeds buffer"); |
|
442 |
char path[JVM_MAXPATHLEN]; |
|
443 |
strcpy(path, parent); |
|
444 |
strcat(path, base); |
|
445 |
strcat(path, extension); |
|
446 |
ClassLoader::compile_the_world_in(path, loader, CHECK); |
|
447 |
} |
|
448 |
} |
|
449 |
if (HAS_PENDING_EXCEPTION) { |
|
450 |
if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
|
451 |
CLEAR_PENDING_EXCEPTION; |
|
452 |
tty->print_cr("\nCompileTheWorld : Ran out of memory\n"); |
|
453 |
tty->print_cr("Increase class metadata storage if a limit was set"); |
|
454 |
} else { |
|
455 |
tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n"); |
|
456 |
} |
|
457 |
} |
|
458 |
} |
|
459 |
||
460 |
bool ClassPathImageEntry::is_jrt() { |
|
461 |
return string_ends_with(name(), "bootmodules.jimage"); |
|
462 |
} |
|
463 |
#endif |
|
464 |
||
1 | 465 |
static void print_meta_index(LazyClassPathEntry* entry, |
466 |
GrowableArray<char*>& meta_packages) { |
|
467 |
tty->print("[Meta index for %s=", entry->name()); |
|
468 |
for (int i = 0; i < meta_packages.length(); i++) { |
|
469 |
if (i > 0) tty->print(" "); |
|
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|
470 |
tty->print("%s", meta_packages.at(i)); |
1 | 471 |
} |
472 |
tty->print_cr("]"); |
|
473 |
} |
|
474 |
||
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|
475 |
#if INCLUDE_CDS |
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|
476 |
void ClassLoader::exit_with_path_failure(const char* error, const char* message) { |
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|
477 |
assert(DumpSharedSpaces, "only called at dump time"); |
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|
478 |
tty->print_cr("Hint: enable -XX:+TraceClassPaths to diagnose the failure"); |
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|
479 |
vm_exit_during_initialization(error, message); |
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|
480 |
} |
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|
481 |
#endif |
1 | 482 |
|
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|
483 |
void ClassLoader::trace_class_path(const char* msg, const char* name) { |
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|
484 |
if (!TraceClassPaths) { |
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|
485 |
return; |
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|
486 |
} |
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|
487 |
|
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|
488 |
if (msg) { |
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|
489 |
tty->print("%s", msg); |
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|
490 |
} |
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|
491 |
if (name) { |
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|
492 |
if (strlen(name) < 256) { |
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|
493 |
tty->print("%s", name); |
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|
494 |
} else { |
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|
495 |
// For very long paths, we need to print each character separately, |
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|
496 |
// as print_cr() has a length limit |
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|
497 |
while (name[0] != '\0') { |
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|
498 |
tty->print("%c", name[0]); |
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|
499 |
name++; |
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|
500 |
} |
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|
501 |
} |
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|
502 |
} |
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|
503 |
if (msg && msg[0] == '[') { |
82b516c550f7
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diff
changeset
|
504 |
tty->print_cr("]"); |
82b516c550f7
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diff
changeset
|
505 |
} else { |
82b516c550f7
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diff
changeset
|
506 |
tty->cr(); |
82b516c550f7
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parents:
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diff
changeset
|
507 |
} |
82b516c550f7
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diff
changeset
|
508 |
} |
82b516c550f7
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diff
changeset
|
509 |
|
82b516c550f7
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diff
changeset
|
510 |
void ClassLoader::setup_bootstrap_meta_index() { |
1 | 511 |
// Set up meta index which allows us to open boot jars lazily if |
512 |
// class data sharing is enabled |
|
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|
513 |
const char* meta_index_path = Arguments::get_meta_index_path(); |
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|
514 |
const char* meta_index_dir = Arguments::get_meta_index_dir(); |
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|
515 |
setup_meta_index(meta_index_path, meta_index_dir, 0); |
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changeset
|
516 |
} |
82b516c550f7
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diff
changeset
|
517 |
|
82b516c550f7
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|
518 |
void ClassLoader::setup_meta_index(const char* meta_index_path, const char* meta_index_dir, int start_index) { |
1 | 519 |
const char* known_version = "% VERSION 2"; |
520 |
FILE* file = fopen(meta_index_path, "r"); |
|
521 |
int line_no = 0; |
|
26135
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changeset
|
522 |
#if INCLUDE_CDS |
82b516c550f7
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diff
changeset
|
523 |
if (DumpSharedSpaces) { |
82b516c550f7
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diff
changeset
|
524 |
if (file != NULL) { |
82b516c550f7
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diff
changeset
|
525 |
_shared_paths_misc_info->add_required_file(meta_index_path); |
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diff
changeset
|
526 |
} else { |
82b516c550f7
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diff
changeset
|
527 |
_shared_paths_misc_info->add_nonexist_path(meta_index_path); |
82b516c550f7
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changeset
|
528 |
} |
82b516c550f7
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diff
changeset
|
529 |
} |
82b516c550f7
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|
530 |
#endif |
1 | 531 |
if (file != NULL) { |
532 |
ResourceMark rm; |
|
533 |
LazyClassPathEntry* cur_entry = NULL; |
|
534 |
GrowableArray<char*> boot_class_path_packages(10); |
|
535 |
char package_name[256]; |
|
536 |
bool skipCurrentJar = false; |
|
537 |
while (fgets(package_name, sizeof(package_name), file) != NULL) { |
|
538 |
++line_no; |
|
539 |
// Remove trailing newline |
|
540 |
package_name[strlen(package_name) - 1] = '\0'; |
|
541 |
switch(package_name[0]) { |
|
542 |
case '%': |
|
543 |
{ |
|
544 |
if ((line_no == 1) && (strcmp(package_name, known_version) != 0)) { |
|
545 |
if (TraceClassLoading && Verbose) { |
|
546 |
tty->print("[Unsupported meta index version]"); |
|
547 |
} |
|
548 |
fclose(file); |
|
549 |
return; |
|
550 |
} |
|
551 |
} |
|
552 |
||
553 |
// These directives indicate jar files which contain only |
|
554 |
// classes, only non-classfile resources, or a combination of |
|
555 |
// the two. See src/share/classes/sun/misc/MetaIndex.java and |
|
556 |
// make/tools/MetaIndex/BuildMetaIndex.java in the J2SE |
|
557 |
// workspace. |
|
558 |
case '#': |
|
559 |
case '!': |
|
560 |
case '@': |
|
561 |
{ |
|
562 |
// Hand off current packages to current lazy entry (if any) |
|
563 |
if ((cur_entry != NULL) && |
|
564 |
(boot_class_path_packages.length() > 0)) { |
|
26135
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|
565 |
if ((TraceClassLoading || TraceClassPaths) && Verbose) { |
1 | 566 |
print_meta_index(cur_entry, boot_class_path_packages); |
567 |
} |
|
568 |
MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0), |
|
569 |
boot_class_path_packages.length()); |
|
570 |
cur_entry->set_meta_index(index); |
|
571 |
} |
|
572 |
cur_entry = NULL; |
|
573 |
boot_class_path_packages.clear(); |
|
574 |
||
575 |
// Find lazy entry corresponding to this jar file |
|
26135
82b516c550f7
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changeset
|
576 |
int count = 0; |
82b516c550f7
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changeset
|
577 |
for (ClassPathEntry* entry = _first_entry; entry != NULL; entry = entry->next(), count++) { |
82b516c550f7
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diff
changeset
|
578 |
if (count >= start_index && |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
579 |
entry->is_lazy() && |
1 | 580 |
string_starts_with(entry->name(), meta_index_dir) && |
581 |
string_ends_with(entry->name(), &package_name[2])) { |
|
582 |
cur_entry = (LazyClassPathEntry*) entry; |
|
583 |
break; |
|
584 |
} |
|
585 |
} |
|
586 |
||
587 |
// If the first character is '@', it indicates the following jar |
|
588 |
// file is a resource only jar file in which case, we should skip |
|
589 |
// reading the subsequent entries since the resource loading is |
|
590 |
// totally handled by J2SE side. |
|
591 |
if (package_name[0] == '@') { |
|
592 |
if (cur_entry != NULL) { |
|
593 |
cur_entry->set_meta_index(new MetaIndex(NULL, 0)); |
|
594 |
} |
|
595 |
cur_entry = NULL; |
|
596 |
skipCurrentJar = true; |
|
597 |
} else { |
|
598 |
skipCurrentJar = false; |
|
599 |
} |
|
600 |
||
601 |
break; |
|
602 |
} |
|
603 |
||
604 |
default: |
|
605 |
{ |
|
606 |
if (!skipCurrentJar && cur_entry != NULL) { |
|
25949 | 607 |
char* new_name = os::strdup_check_oom(package_name); |
1 | 608 |
boot_class_path_packages.append(new_name); |
609 |
} |
|
610 |
} |
|
611 |
} |
|
612 |
} |
|
613 |
// Hand off current packages to current lazy entry (if any) |
|
614 |
if ((cur_entry != NULL) && |
|
615 |
(boot_class_path_packages.length() > 0)) { |
|
26135
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changeset
|
616 |
if ((TraceClassLoading || TraceClassPaths) && Verbose) { |
1 | 617 |
print_meta_index(cur_entry, boot_class_path_packages); |
618 |
} |
|
619 |
MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0), |
|
620 |
boot_class_path_packages.length()); |
|
621 |
cur_entry->set_meta_index(index); |
|
622 |
} |
|
623 |
fclose(file); |
|
624 |
} |
|
625 |
} |
|
626 |
||
26135
82b516c550f7
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diff
changeset
|
627 |
#if INCLUDE_CDS |
82b516c550f7
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changeset
|
628 |
void ClassLoader::check_shared_classpath(const char *path) { |
82b516c550f7
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diff
changeset
|
629 |
if (strcmp(path, "") == 0) { |
82b516c550f7
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diff
changeset
|
630 |
exit_with_path_failure("Cannot have empty path in archived classpaths", NULL); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
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diff
changeset
|
631 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
632 |
|
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
633 |
struct stat st; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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diff
changeset
|
634 |
if (os::stat(path, &st) == 0) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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diff
changeset
|
635 |
if ((st.st_mode & S_IFREG) != S_IFREG) { // is directory |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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diff
changeset
|
636 |
if (!os::dir_is_empty(path)) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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diff
changeset
|
637 |
tty->print_cr("Error: non-empty directory '%s'", path); |
82b516c550f7
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iklam
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25949
diff
changeset
|
638 |
exit_with_path_failure("CDS allows only empty directories in archived classpaths", NULL); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
639 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
640 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
641 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
642 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
643 |
#endif |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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25949
diff
changeset
|
644 |
|
1 | 645 |
void ClassLoader::setup_bootstrap_search_path() { |
646 |
assert(_first_entry == NULL, "should not setup bootstrap class search path twice"); |
|
26419 | 647 |
const char* sys_class_path = Arguments::get_sysclasspath(); |
648 |
if (PrintSharedArchiveAndExit) { |
|
649 |
// Don't print sys_class_path - this is the bootcp of this current VM process, not necessarily |
|
650 |
// the same as the bootcp of the shared archive. |
|
651 |
} else { |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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diff
changeset
|
652 |
trace_class_path("[Bootstrap loader class path=", sys_class_path); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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diff
changeset
|
653 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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diff
changeset
|
654 |
#if INCLUDE_CDS |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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25949
diff
changeset
|
655 |
if (DumpSharedSpaces) { |
26419 | 656 |
_shared_paths_misc_info->add_boot_classpath(sys_class_path); |
1 | 657 |
} |
26135
82b516c550f7
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diff
changeset
|
658 |
#endif |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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diff
changeset
|
659 |
setup_search_path(sys_class_path); |
82b516c550f7
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diff
changeset
|
660 |
} |
1 | 661 |
|
26135
82b516c550f7
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diff
changeset
|
662 |
#if INCLUDE_CDS |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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diff
changeset
|
663 |
int ClassLoader::get_shared_paths_misc_info_size() { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
664 |
return _shared_paths_misc_info->get_used_bytes(); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
665 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
666 |
|
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
667 |
void* ClassLoader::get_shared_paths_misc_info() { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
668 |
return _shared_paths_misc_info->buffer(); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
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diff
changeset
|
669 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
670 |
|
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
671 |
bool ClassLoader::check_shared_paths_misc_info(void *buf, int size) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
672 |
SharedPathsMiscInfo* checker = SharedClassUtil::allocate_shared_paths_misc_info((char*)buf, size); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
673 |
bool result = checker->check(); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
674 |
delete checker; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
675 |
return result; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
676 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
677 |
#endif |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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25949
diff
changeset
|
678 |
|
26419 | 679 |
void ClassLoader::setup_search_path(const char *class_path) { |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
680 |
int offset = 0; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
681 |
int len = (int)strlen(class_path); |
1 | 682 |
int end = 0; |
683 |
||
684 |
// Iterate over class path entries |
|
685 |
for (int start = 0; start < len; start = end) { |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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diff
changeset
|
686 |
while (class_path[end] && class_path[end] != os::path_separator()[0]) { |
1 | 687 |
end++; |
688 |
} |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
689 |
EXCEPTION_MARK; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
690 |
ResourceMark rm(THREAD); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
691 |
char* path = NEW_RESOURCE_ARRAY(char, end - start + 1); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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25949
diff
changeset
|
692 |
strncpy(path, &class_path[start], end - start); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
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25949
diff
changeset
|
693 |
path[end - start] = '\0'; |
1 | 694 |
update_class_path_entry_list(path, false); |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
695 |
#if INCLUDE_CDS |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
696 |
if (DumpSharedSpaces) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
697 |
check_shared_classpath(path); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
698 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
699 |
#endif |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
700 |
while (class_path[end] == os::path_separator()[0]) { |
1 | 701 |
end++; |
702 |
} |
|
703 |
} |
|
704 |
} |
|
705 |
||
26419 | 706 |
ClassPathEntry* ClassLoader::create_class_path_entry(const char *path, const struct stat* st, |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
707 |
bool lazy, bool throw_exception, TRAPS) { |
1 | 708 |
JavaThread* thread = JavaThread::current(); |
709 |
if (lazy) { |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
710 |
return new LazyClassPathEntry(path, st, throw_exception); |
1 | 711 |
} |
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
712 |
ClassPathEntry* new_entry = NULL; |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
713 |
if ((st->st_mode & S_IFREG) == S_IFREG) { |
27562 | 714 |
// Regular file, should be a zip or image file |
1 | 715 |
// Canonicalized filename |
716 |
char canonical_path[JVM_MAXPATHLEN]; |
|
717 |
if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) { |
|
718 |
// This matches the classic VM |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
719 |
if (throw_exception) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
720 |
THROW_MSG_(vmSymbols::java_io_IOException(), "Bad pathname", NULL); |
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
721 |
} else { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
722 |
return NULL; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
723 |
} |
1 | 724 |
} |
27562 | 725 |
// TODO - add proper criteria for selecting image file |
726 |
ClassPathImageEntry* entry = new ClassPathImageEntry(canonical_path); |
|
727 |
if (entry->is_open()) { |
|
728 |
new_entry = entry; |
|
729 |
} else { |
|
1 | 730 |
char* error_msg = NULL; |
731 |
jzfile* zip; |
|
732 |
{ |
|
733 |
// enable call to C land |
|
734 |
ThreadToNativeFromVM ttn(thread); |
|
735 |
HandleMark hm(thread); |
|
736 |
zip = (*ZipOpen)(canonical_path, &error_msg); |
|
737 |
} |
|
738 |
if (zip != NULL && error_msg == NULL) { |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
739 |
new_entry = new ClassPathZipEntry(zip, path); |
1 | 740 |
} else { |
741 |
ResourceMark rm(thread); |
|
742 |
char *msg; |
|
743 |
if (error_msg == NULL) { |
|
744 |
msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ; |
|
745 |
jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path); |
|
746 |
} else { |
|
747 |
int len = (int)(strlen(path) + strlen(error_msg) + 128); |
|
748 |
msg = NEW_RESOURCE_ARRAY(char, len); ; |
|
749 |
jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path); |
|
750 |
} |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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parents:
25949
diff
changeset
|
751 |
if (throw_exception) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
752 |
THROW_MSG_(vmSymbols::java_lang_ClassNotFoundException(), msg, NULL); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
753 |
} else { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
754 |
return NULL; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
755 |
} |
1 | 756 |
} |
27562 | 757 |
} |
758 |
if (TraceClassLoading || TraceClassPaths) { |
|
759 |
tty->print_cr("[Opened %s]", path); |
|
760 |
} |
|
1 | 761 |
} else { |
762 |
// Directory |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
763 |
new_entry = new ClassPathDirEntry(path); |
27562 | 764 |
if (TraceClassLoading) { |
1 | 765 |
tty->print_cr("[Path %s]", path); |
766 |
} |
|
767 |
} |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
768 |
return new_entry; |
1 | 769 |
} |
770 |
||
771 |
||
772 |
// Create a class path zip entry for a given path (return NULL if not found |
|
773 |
// or zip/JAR file cannot be opened) |
|
774 |
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) { |
|
775 |
// check for a regular file |
|
776 |
struct stat st; |
|
777 |
if (os::stat(path, &st) == 0) { |
|
778 |
if ((st.st_mode & S_IFREG) == S_IFREG) { |
|
779 |
char canonical_path[JVM_MAXPATHLEN]; |
|
26419 | 780 |
if (get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) { |
1 | 781 |
char* error_msg = NULL; |
782 |
jzfile* zip; |
|
783 |
{ |
|
784 |
// enable call to C land |
|
785 |
JavaThread* thread = JavaThread::current(); |
|
786 |
ThreadToNativeFromVM ttn(thread); |
|
787 |
HandleMark hm(thread); |
|
788 |
zip = (*ZipOpen)(canonical_path, &error_msg); |
|
789 |
} |
|
790 |
if (zip != NULL && error_msg == NULL) { |
|
791 |
// create using canonical path |
|
792 |
return new ClassPathZipEntry(zip, canonical_path); |
|
793 |
} |
|
794 |
} |
|
795 |
} |
|
796 |
} |
|
797 |
return NULL; |
|
798 |
} |
|
799 |
||
800 |
// returns true if entry already on class path |
|
801 |
bool ClassLoader::contains_entry(ClassPathEntry *entry) { |
|
802 |
ClassPathEntry* e = _first_entry; |
|
803 |
while (e != NULL) { |
|
804 |
// assume zip entries have been canonicalized |
|
805 |
if (strcmp(entry->name(), e->name()) == 0) { |
|
806 |
return true; |
|
807 |
} |
|
808 |
e = e->next(); |
|
809 |
} |
|
810 |
return false; |
|
811 |
} |
|
812 |
||
813 |
void ClassLoader::add_to_list(ClassPathEntry *new_entry) { |
|
814 |
if (new_entry != NULL) { |
|
815 |
if (_last_entry == NULL) { |
|
816 |
_first_entry = _last_entry = new_entry; |
|
817 |
} else { |
|
818 |
_last_entry->set_next(new_entry); |
|
819 |
_last_entry = new_entry; |
|
820 |
} |
|
821 |
} |
|
26135
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changeset
|
822 |
_num_entries ++; |
1 | 823 |
} |
824 |
||
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
825 |
// Returns true IFF the file/dir exists and the entry was successfully created. |
26419 | 826 |
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
|
827 |
bool check_for_duplicates, |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
828 |
bool throw_exception) { |
1 | 829 |
struct stat st; |
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
830 |
if (os::stat(path, &st) == 0) { |
1 | 831 |
// File or directory found |
832 |
ClassPathEntry* new_entry = NULL; |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
833 |
Thread* THREAD = Thread::current(); |
26135
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
834 |
new_entry = create_class_path_entry(path, &st, LazyBootClassLoader, throw_exception, CHECK_(false)); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
835 |
if (new_entry == NULL) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
836 |
return false; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
837 |
} |
1 | 838 |
// The kernel VM adds dynamically to the end of the classloader path and |
839 |
// doesn't reorder the bootclasspath which would break java.lang.Package |
|
840 |
// (see PackageInfo). |
|
841 |
// Add new entry to linked list |
|
842 |
if (!check_for_duplicates || !contains_entry(new_entry)) { |
|
26135
82b516c550f7
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parents:
25949
diff
changeset
|
843 |
ClassLoaderExt::add_class_path_entry(path, check_for_duplicates, new_entry); |
1 | 844 |
} |
26135
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
845 |
return true; |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
846 |
} else { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
847 |
#if INCLUDE_CDS |
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
848 |
if (DumpSharedSpaces) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
849 |
_shared_paths_misc_info->add_nonexist_path(path); |
82b516c550f7
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changeset
|
850 |
} |
26419 | 851 |
#endif |
26135
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diff
changeset
|
852 |
return false; |
1 | 853 |
} |
854 |
} |
|
855 |
||
856 |
void ClassLoader::print_bootclasspath() { |
|
857 |
ClassPathEntry* e = _first_entry; |
|
858 |
tty->print("[bootclasspath= "); |
|
859 |
while (e != NULL) { |
|
860 |
tty->print("%s ;", e->name()); |
|
861 |
e = e->next(); |
|
862 |
} |
|
863 |
tty->print_cr("]"); |
|
864 |
} |
|
865 |
||
866 |
void ClassLoader::load_zip_library() { |
|
867 |
assert(ZipOpen == NULL, "should not load zip library twice"); |
|
868 |
// First make sure native library is loaded |
|
869 |
os::native_java_library(); |
|
870 |
// Load zip library |
|
871 |
char path[JVM_MAXPATHLEN]; |
|
872 |
char ebuf[1024]; |
|
14471
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
13728
diff
changeset
|
873 |
void* handle = NULL; |
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
13728
diff
changeset
|
874 |
if (os::dll_build_name(path, sizeof(path), Arguments::get_dll_dir(), "zip")) { |
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
13728
diff
changeset
|
875 |
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
|
876 |
} |
1 | 877 |
if (handle == NULL) { |
878 |
vm_exit_during_initialization("Unable to load ZIP library", path); |
|
879 |
} |
|
880 |
// Lookup zip entry points |
|
7405
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
881 |
ZipOpen = CAST_TO_FN_PTR(ZipOpen_t, os::dll_lookup(handle, "ZIP_Open")); |
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
882 |
ZipClose = CAST_TO_FN_PTR(ZipClose_t, os::dll_lookup(handle, "ZIP_Close")); |
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
883 |
FindEntry = CAST_TO_FN_PTR(FindEntry_t, os::dll_lookup(handle, "ZIP_FindEntry")); |
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
884 |
ReadEntry = CAST_TO_FN_PTR(ReadEntry_t, os::dll_lookup(handle, "ZIP_ReadEntry")); |
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
885 |
ReadMappedEntry = CAST_TO_FN_PTR(ReadMappedEntry_t, os::dll_lookup(handle, "ZIP_ReadMappedEntry")); |
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
886 |
GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, os::dll_lookup(handle, "ZIP_GetNextEntry")); |
27562 | 887 |
ZipInflateFully = CAST_TO_FN_PTR(ZipInflateFully_t, os::dll_lookup(handle, "ZIP_InflateFully")); |
27025 | 888 |
Crc32 = CAST_TO_FN_PTR(Crc32_t, os::dll_lookup(handle, "ZIP_CRC32")); |
1 | 889 |
|
890 |
// ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL |
|
27025 | 891 |
if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL || |
892 |
GetNextEntry == NULL || Crc32 == NULL) { |
|
1 | 893 |
vm_exit_during_initialization("Corrupted ZIP library", path); |
894 |
} |
|
895 |
||
27562 | 896 |
if (ZipInflateFully == NULL) { |
897 |
vm_exit_during_initialization("Corrupted ZIP library ZIP_InflateFully missing", path); |
|
898 |
} |
|
899 |
||
1 | 900 |
// Lookup canonicalize entry in libjava.dll |
901 |
void *javalib_handle = os::native_java_library(); |
|
7405
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
902 |
CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, os::dll_lookup(javalib_handle, "Canonicalize")); |
1 | 903 |
// This lookup only works on 1.3. Do not check for non-null here |
904 |
} |
|
905 |
||
27562 | 906 |
jboolean ClassLoader::decompress(void *in, u8 inSize, void *out, u8 outSize, char **pmsg) { |
907 |
return (*ZipInflateFully)(in, inSize, out, outSize, pmsg); |
|
908 |
} |
|
909 |
||
27025 | 910 |
int ClassLoader::crc32(int crc, const char* buf, int len) { |
911 |
assert(Crc32 != NULL, "ZIP_CRC32 is not found"); |
|
912 |
return (*Crc32)(crc, (const jbyte*)buf, len); |
|
913 |
} |
|
914 |
||
1 | 915 |
// PackageInfo data exists in order to support the java.lang.Package |
916 |
// class. A Package object provides information about a java package |
|
917 |
// (version, vendor, etc.) which originates in the manifest of the jar |
|
918 |
// file supplying the package. For application classes, the ClassLoader |
|
919 |
// object takes care of this. |
|
920 |
||
921 |
// For system (boot) classes, the Java code in the Package class needs |
|
922 |
// to be able to identify which source jar file contained the boot |
|
923 |
// class, so that it can extract the manifest from it. This table |
|
924 |
// identifies java packages with jar files in the boot classpath. |
|
925 |
||
926 |
// Because the boot classpath cannot change, the classpath index is |
|
927 |
// sufficient to identify the source jar file or directory. (Since |
|
928 |
// directories have no manifests, the directory name is not required, |
|
929 |
// but is available.) |
|
930 |
||
931 |
// When using sharing -- the pathnames of entries in the boot classpath |
|
932 |
// may not be the same at runtime as they were when the archive was |
|
933 |
// created (NFS, Samba, etc.). The actual files and directories named |
|
934 |
// in the classpath must be the same files, in the same order, even |
|
935 |
// though the exact name is not the same. |
|
936 |
||
13195 | 937 |
class PackageInfo: public BasicHashtableEntry<mtClass> { |
1 | 938 |
public: |
939 |
const char* _pkgname; // Package name |
|
940 |
int _classpath_index; // Index of directory or JAR file loaded from |
|
941 |
||
942 |
PackageInfo* next() { |
|
13195 | 943 |
return (PackageInfo*)BasicHashtableEntry<mtClass>::next(); |
1 | 944 |
} |
945 |
||
946 |
const char* pkgname() { return _pkgname; } |
|
947 |
void set_pkgname(char* pkgname) { _pkgname = pkgname; } |
|
948 |
||
949 |
const char* filename() { |
|
950 |
return ClassLoader::classpath_entry(_classpath_index)->name(); |
|
951 |
} |
|
952 |
||
953 |
void set_index(int index) { |
|
954 |
_classpath_index = index; |
|
955 |
} |
|
956 |
}; |
|
957 |
||
958 |
||
13195 | 959 |
class PackageHashtable : public BasicHashtable<mtClass> { |
1 | 960 |
private: |
961 |
inline unsigned int compute_hash(const char *s, int n) { |
|
962 |
unsigned int val = 0; |
|
963 |
while (--n >= 0) { |
|
964 |
val = *s++ + 31 * val; |
|
965 |
} |
|
966 |
return val; |
|
967 |
} |
|
968 |
||
969 |
PackageInfo* bucket(int index) { |
|
13195 | 970 |
return (PackageInfo*)BasicHashtable<mtClass>::bucket(index); |
1 | 971 |
} |
972 |
||
973 |
PackageInfo* get_entry(int index, unsigned int hash, |
|
974 |
const char* pkgname, size_t n) { |
|
975 |
for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) { |
|
976 |
if (pp->hash() == hash && |
|
977 |
strncmp(pkgname, pp->pkgname(), n) == 0 && |
|
978 |
pp->pkgname()[n] == '\0') { |
|
979 |
return pp; |
|
980 |
} |
|
981 |
} |
|
982 |
return NULL; |
|
983 |
} |
|
984 |
||
985 |
public: |
|
986 |
PackageHashtable(int table_size) |
|
13195 | 987 |
: BasicHashtable<mtClass>(table_size, sizeof(PackageInfo)) {} |
1 | 988 |
|
13195 | 989 |
PackageHashtable(int table_size, HashtableBucket<mtClass>* t, int number_of_entries) |
990 |
: BasicHashtable<mtClass>(table_size, sizeof(PackageInfo), t, number_of_entries) {} |
|
1 | 991 |
|
992 |
PackageInfo* get_entry(const char* pkgname, int n) { |
|
993 |
unsigned int hash = compute_hash(pkgname, n); |
|
994 |
return get_entry(hash_to_index(hash), hash, pkgname, n); |
|
995 |
} |
|
996 |
||
997 |
PackageInfo* new_entry(char* pkgname, int n) { |
|
998 |
unsigned int hash = compute_hash(pkgname, n); |
|
999 |
PackageInfo* pp; |
|
13195 | 1000 |
pp = (PackageInfo*)BasicHashtable<mtClass>::new_entry(hash); |
1 | 1001 |
pp->set_pkgname(pkgname); |
1002 |
return pp; |
|
1003 |
} |
|
1004 |
||
1005 |
void add_entry(PackageInfo* pp) { |
|
1006 |
int index = hash_to_index(pp->hash()); |
|
13195 | 1007 |
BasicHashtable<mtClass>::add_entry(index, pp); |
1 | 1008 |
} |
1009 |
||
1010 |
void copy_pkgnames(const char** packages) { |
|
1011 |
int n = 0; |
|
1012 |
for (int i = 0; i < table_size(); ++i) { |
|
1013 |
for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) { |
|
1014 |
packages[n++] = pp->pkgname(); |
|
1015 |
} |
|
1016 |
} |
|
1017 |
assert(n == number_of_entries(), "just checking"); |
|
1018 |
} |
|
1019 |
||
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
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parents:
25949
diff
changeset
|
1020 |
CDS_ONLY(void copy_table(char** top, char* end, PackageHashtable* table);) |
1 | 1021 |
}; |
1022 |
||
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1023 |
#if INCLUDE_CDS |
1 | 1024 |
void PackageHashtable::copy_table(char** top, char* end, |
1025 |
PackageHashtable* table) { |
|
1026 |
// Copy (relocate) the table to the shared space. |
|
13195 | 1027 |
BasicHashtable<mtClass>::copy_table(top, end); |
1 | 1028 |
|
1029 |
// Calculate the space needed for the package name strings. |
|
1030 |
int i; |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1031 |
intptr_t* tableSize = (intptr_t*)(*top); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1032 |
*top += sizeof(intptr_t); // For table size |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1033 |
char* tableStart = *top; |
1 | 1034 |
|
1035 |
for (i = 0; i < table_size(); ++i) { |
|
1036 |
for (PackageInfo* pp = table->bucket(i); |
|
1037 |
pp != NULL; |
|
1038 |
pp = pp->next()) { |
|
1039 |
int n1 = (int)(strlen(pp->pkgname()) + 1); |
|
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|
1040 |
if (*top + n1 >= end) { |
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|
1041 |
report_out_of_shared_space(SharedMiscData); |
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changeset
|
1042 |
} |
1 | 1043 |
pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1)); |
1044 |
*top += n1; |
|
1045 |
} |
|
1046 |
} |
|
1047 |
*top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord)); |
|
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|
1048 |
if (*top >= end) { |
82b516c550f7
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changeset
|
1049 |
report_out_of_shared_space(SharedMiscData); |
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changeset
|
1050 |
} |
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changeset
|
1051 |
|
82b516c550f7
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changeset
|
1052 |
// Write table size |
82b516c550f7
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|
1053 |
intptr_t len = *top - (char*)tableStart; |
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|
1054 |
*tableSize = len; |
1 | 1055 |
} |
1056 |
||
1057 |
||
1058 |
void ClassLoader::copy_package_info_buckets(char** top, char* end) { |
|
1059 |
_package_hash_table->copy_buckets(top, end); |
|
1060 |
} |
|
1061 |
||
1062 |
void ClassLoader::copy_package_info_table(char** top, char* end) { |
|
1063 |
_package_hash_table->copy_table(top, end, _package_hash_table); |
|
1064 |
} |
|
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|
1065 |
#endif |
1 | 1066 |
|
1067 |
PackageInfo* ClassLoader::lookup_package(const char *pkgname) { |
|
1068 |
const char *cp = strrchr(pkgname, '/'); |
|
1069 |
if (cp != NULL) { |
|
1070 |
// Package prefix found |
|
1071 |
int n = cp - pkgname + 1; |
|
1072 |
return _package_hash_table->get_entry(pkgname, n); |
|
1073 |
} |
|
1074 |
return NULL; |
|
1075 |
} |
|
1076 |
||
1077 |
||
1078 |
bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) { |
|
1079 |
assert(pkgname != NULL, "just checking"); |
|
1080 |
// Bootstrap loader no longer holds system loader lock obj serializing |
|
1081 |
// load_instance_class and thereby add_package |
|
1082 |
{ |
|
1083 |
MutexLocker ml(PackageTable_lock, THREAD); |
|
1084 |
// First check for previously loaded entry |
|
1085 |
PackageInfo* pp = lookup_package(pkgname); |
|
1086 |
if (pp != NULL) { |
|
1087 |
// Existing entry found, check source of package |
|
1088 |
pp->set_index(classpath_index); |
|
1089 |
return true; |
|
1090 |
} |
|
1091 |
||
1092 |
const char *cp = strrchr(pkgname, '/'); |
|
1093 |
if (cp != NULL) { |
|
1094 |
// Package prefix found |
|
1095 |
int n = cp - pkgname + 1; |
|
1096 |
||
13195 | 1097 |
char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1, mtClass); |
1 | 1098 |
if (new_pkgname == NULL) { |
1099 |
return false; |
|
1100 |
} |
|
1101 |
||
1102 |
memcpy(new_pkgname, pkgname, n); |
|
1103 |
new_pkgname[n] = '\0'; |
|
1104 |
pp = _package_hash_table->new_entry(new_pkgname, n); |
|
1105 |
pp->set_index(classpath_index); |
|
1106 |
||
1107 |
// Insert into hash table |
|
1108 |
_package_hash_table->add_entry(pp); |
|
1109 |
} |
|
1110 |
return true; |
|
1111 |
} |
|
1112 |
} |
|
1113 |
||
1114 |
||
1115 |
oop ClassLoader::get_system_package(const char* name, TRAPS) { |
|
1116 |
PackageInfo* pp; |
|
1117 |
{ |
|
1118 |
MutexLocker ml(PackageTable_lock, THREAD); |
|
1119 |
pp = lookup_package(name); |
|
1120 |
} |
|
1121 |
if (pp == NULL) { |
|
1122 |
return NULL; |
|
1123 |
} else { |
|
1124 |
Handle p = java_lang_String::create_from_str(pp->filename(), THREAD); |
|
1125 |
return p(); |
|
1126 |
} |
|
1127 |
} |
|
1128 |
||
1129 |
||
1130 |
objArrayOop ClassLoader::get_system_packages(TRAPS) { |
|
1131 |
ResourceMark rm(THREAD); |
|
1132 |
int nof_entries; |
|
1133 |
const char** packages; |
|
1134 |
{ |
|
1135 |
MutexLocker ml(PackageTable_lock, THREAD); |
|
1136 |
// Allocate resource char* array containing package names |
|
1137 |
nof_entries = _package_hash_table->number_of_entries(); |
|
1138 |
if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) { |
|
1139 |
return NULL; |
|
1140 |
} |
|
1141 |
_package_hash_table->copy_pkgnames(packages); |
|
1142 |
} |
|
1143 |
// Allocate objArray and fill with java.lang.String |
|
4571 | 1144 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(), |
1 | 1145 |
nof_entries, CHECK_0); |
1146 |
objArrayHandle result(THREAD, r); |
|
1147 |
for (int i = 0; i < nof_entries; i++) { |
|
1148 |
Handle str = java_lang_String::create_from_str(packages[i], CHECK_0); |
|
1149 |
result->obj_at_put(i, str()); |
|
1150 |
} |
|
1151 |
||
1152 |
return result(); |
|
1153 |
} |
|
1154 |
||
1155 |
||
8076
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|
1156 |
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) { |
1 | 1157 |
ResourceMark rm(THREAD); |
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|
1158 |
const char* class_name = h_name->as_C_string(); |
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|
1159 |
EventMark m("loading class %s", class_name); |
1 | 1160 |
ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion); |
1161 |
||
1162 |
stringStream st; |
|
1163 |
// st.print() uses too much stack space while handling a StackOverflowError |
|
1164 |
// st.print("%s.class", h_name->as_utf8()); |
|
1165 |
st.print_raw(h_name->as_utf8()); |
|
1166 |
st.print_raw(".class"); |
|
26135
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changeset
|
1167 |
const char* file_name = st.as_string(); |
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changeset
|
1168 |
ClassLoaderExt::Context context(class_name, file_name, THREAD); |
1 | 1169 |
|
1170 |
// Lookup stream for parsing .class file |
|
1171 |
ClassFileStream* stream = NULL; |
|
1172 |
int classpath_index = 0; |
|
26135
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changeset
|
1173 |
ClassPathEntry* e = NULL; |
82b516c550f7
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changeset
|
1174 |
instanceKlassHandle h; |
1 | 1175 |
{ |
3575
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changeset
|
1176 |
PerfClassTraceTime vmtimer(perf_sys_class_lookup_time(), |
224791e7ecab
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diff
changeset
|
1177 |
((JavaThread*) THREAD)->get_thread_stat()->perf_timers_addr(), |
224791e7ecab
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diff
changeset
|
1178 |
PerfClassTraceTime::CLASS_LOAD); |
26135
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changeset
|
1179 |
e = _first_entry; |
1 | 1180 |
while (e != NULL) { |
26135
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changeset
|
1181 |
stream = e->open_stream(file_name, CHECK_NULL); |
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changeset
|
1182 |
if (!context.check(stream, classpath_index)) { |
82b516c550f7
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changeset
|
1183 |
return h; // NULL |
82b516c550f7
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diff
changeset
|
1184 |
} |
1 | 1185 |
if (stream != NULL) { |
1186 |
break; |
|
1187 |
} |
|
1188 |
e = e->next(); |
|
1189 |
++classpath_index; |
|
1190 |
} |
|
1191 |
} |
|
1192 |
||
1193 |
if (stream != NULL) { |
|
1194 |
// class file found, parse it |
|
1195 |
ClassFileParser parser(stream); |
|
14588
8ec26d2d9339
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diff
changeset
|
1196 |
ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data(); |
1 | 1197 |
Handle protection_domain; |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
1198 |
TempNewSymbol parsed_name = NULL; |
1 | 1199 |
instanceKlassHandle result = parser.parseClassFile(h_name, |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
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diff
changeset
|
1200 |
loader_data, |
1 | 1201 |
protection_domain, |
1202 |
parsed_name, |
|
26135
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changeset
|
1203 |
context.should_verify(classpath_index), |
82b516c550f7
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iklam
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changeset
|
1204 |
THREAD); |
82b516c550f7
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diff
changeset
|
1205 |
if (HAS_PENDING_EXCEPTION) { |
82b516c550f7
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iklam
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diff
changeset
|
1206 |
ResourceMark rm; |
82b516c550f7
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25949
diff
changeset
|
1207 |
if (DumpSharedSpaces) { |
82b516c550f7
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iklam
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25949
diff
changeset
|
1208 |
tty->print_cr("Preload Error: Failed to load %s", class_name); |
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
1209 |
} |
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
1210 |
return h; |
82b516c550f7
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iklam
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25949
diff
changeset
|
1211 |
} |
82b516c550f7
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diff
changeset
|
1212 |
h = context.record_result(classpath_index, e, result, THREAD); |
82b516c550f7
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25949
diff
changeset
|
1213 |
} else { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1214 |
if (DumpSharedSpaces) { |
82b516c550f7
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iklam
parents:
25949
diff
changeset
|
1215 |
tty->print_cr("Preload Error: Cannot find %s", class_name); |
1 | 1216 |
} |
1217 |
} |
|
1218 |
||
1219 |
return h; |
|
1220 |
} |
|
1221 |
||
1222 |
||
13195 | 1223 |
void ClassLoader::create_package_info_table(HashtableBucket<mtClass> *t, int length, |
1 | 1224 |
int number_of_entries) { |
1225 |
assert(_package_hash_table == NULL, "One package info table allowed."); |
|
13195 | 1226 |
assert(length == package_hash_table_size * sizeof(HashtableBucket<mtClass>), |
1 | 1227 |
"bad shared package info size."); |
1228 |
_package_hash_table = new PackageHashtable(package_hash_table_size, t, |
|
1229 |
number_of_entries); |
|
1230 |
} |
|
1231 |
||
1232 |
||
1233 |
void ClassLoader::create_package_info_table() { |
|
1234 |
assert(_package_hash_table == NULL, "shouldn't have one yet"); |
|
1235 |
_package_hash_table = new PackageHashtable(package_hash_table_size); |
|
1236 |
} |
|
1237 |
||
1238 |
||
1239 |
// Initialize the class loader's access to methods in libzip. Parse and |
|
1240 |
// process the boot classpath into a list ClassPathEntry objects. Once |
|
1241 |
// this list has been created, it must not change order (see class PackageInfo) |
|
1242 |
// it can be appended to and is by jvmti and the kernel vm. |
|
1243 |
||
1244 |
void ClassLoader::initialize() { |
|
1245 |
assert(_package_hash_table == NULL, "should have been initialized by now."); |
|
1246 |
EXCEPTION_MARK; |
|
1247 |
||
1248 |
if (UsePerfData) { |
|
1249 |
// jvmstat performance counters |
|
1250 |
NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time"); |
|
1251 |
NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime"); |
|
3575
224791e7ecab
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2567
diff
changeset
|
1252 |
NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self"); |
1 | 1253 |
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
|
1254 |
NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self"); |
1 | 1255 |
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
|
1256 |
NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self"); |
1 | 1257 |
NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses"); |
1258 |
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
|
1259 |
NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses"); |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
1260 |
|
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
1261 |
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
|
1262 |
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
|
1263 |
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
|
1264 |
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
|
1265 |
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
|
1266 |
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
|
1267 |
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
|
1268 |
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
|
1269 |
NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses"); |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
1270 |
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
|
1271 |
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
|
1272 |
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
|
1273 |
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
|
1274 |
|
1 | 1275 |
|
1276 |
// The following performance counters are added for measuring the impact |
|
1277 |
// of the bug fix of 6365597. They are mainly focused on finding out |
|
1278 |
// the behavior of system & user-defined classloader lock, whether |
|
1279 |
// ClassLoader.loadClass/findClass is being called synchronized or not. |
|
1280 |
// Also two additional counters are created to see whether 'UnsyncloadClass' |
|
1281 |
// flag is being set or not and how many times load_instance_class call |
|
1282 |
// fails with linkageError etc. |
|
1283 |
NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS, |
|
1284 |
"systemLoaderLockContentionRate"); |
|
1285 |
NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS, |
|
1286 |
"nonSystemLoaderLockContentionRate"); |
|
1287 |
NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS, |
|
1288 |
"jvmFindLoadedClassNoLockCalls"); |
|
1289 |
NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS, |
|
1290 |
"jvmDefineClassNoLockCalls"); |
|
1291 |
||
1292 |
NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS, |
|
1293 |
"jniDefineClassNoLockCalls"); |
|
1294 |
||
1295 |
NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, |
|
1296 |
"unsafeDefineClassCalls"); |
|
1297 |
||
1298 |
NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet"); |
|
1299 |
NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS, |
|
1300 |
"loadInstanceClassFailRate"); |
|
1301 |
||
1302 |
// increment the isUnsyncloadClass counter if UnsyncloadClass is set. |
|
1303 |
if (UnsyncloadClass) { |
|
1304 |
_isUnsyncloadClass->inc(); |
|
1305 |
} |
|
1306 |
} |
|
1307 |
||
1308 |
// lookup zip library entry points |
|
1309 |
load_zip_library(); |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1310 |
#if INCLUDE_CDS |
1 | 1311 |
// initialize search path |
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1312 |
if (DumpSharedSpaces) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1313 |
_shared_paths_misc_info = SharedClassUtil::allocate_shared_paths_misc_info(); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1314 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1315 |
#endif |
1 | 1316 |
setup_bootstrap_search_path(); |
1317 |
if (LazyBootClassLoader) { |
|
1318 |
// set up meta index which makes boot classpath initialization lazier |
|
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1319 |
setup_bootstrap_meta_index(); |
1 | 1320 |
} |
1321 |
} |
|
1322 |
||
26135
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1323 |
#if INCLUDE_CDS |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1324 |
void ClassLoader::initialize_shared_path() { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1325 |
if (DumpSharedSpaces) { |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1326 |
ClassLoaderExt::setup_search_paths(); |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1327 |
_shared_paths_misc_info->write_jint(0); // see comments in SharedPathsMiscInfo::check() |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1328 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1329 |
} |
82b516c550f7
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
25949
diff
changeset
|
1330 |
#endif |
1 | 1331 |
|
1332 |
jlong ClassLoader::classloader_time_ms() { |
|
1333 |
return UsePerfData ? |
|
1334 |
Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1; |
|
1335 |
} |
|
1336 |
||
1337 |
jlong ClassLoader::class_init_count() { |
|
1338 |
return UsePerfData ? _perf_classes_inited->get_value() : -1; |
|
1339 |
} |
|
1340 |
||
1341 |
jlong ClassLoader::class_init_time_ms() { |
|
1342 |
return UsePerfData ? |
|
1343 |
Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1; |
|
1344 |
} |
|
1345 |
||
1346 |
jlong ClassLoader::class_verify_time_ms() { |
|
1347 |
return UsePerfData ? |
|
1348 |
Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1; |
|
1349 |
} |
|
1350 |
||
1351 |
jlong ClassLoader::class_link_count() { |
|
1352 |
return UsePerfData ? _perf_classes_linked->get_value() : -1; |
|
1353 |
} |
|
1354 |
||
1355 |
jlong ClassLoader::class_link_time_ms() { |
|
1356 |
return UsePerfData ? |
|
1357 |
Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1; |
|
1358 |
} |
|
1359 |
||
1360 |
int ClassLoader::compute_Object_vtable() { |
|
1361 |
// hardwired for JDK1.2 -- would need to duplicate class file parsing |
|
1362 |
// code to determine actual value from file |
|
1363 |
// Would be value '11' if finals were in vtable |
|
1364 |
int JDK_1_2_Object_vtable_size = 5; |
|
1365 |
return JDK_1_2_Object_vtable_size * vtableEntry::size(); |
|
1366 |
} |
|
1367 |
||
1368 |
||
1369 |
void classLoader_init() { |
|
1370 |
ClassLoader::initialize(); |
|
1371 |
} |
|
1372 |
||
1373 |
||
26419 | 1374 |
bool ClassLoader::get_canonical_path(const char* orig, char* out, int len) { |
1 | 1375 |
assert(orig != NULL && out != NULL && len > 0, "bad arguments"); |
1376 |
if (CanonicalizeEntry != NULL) { |
|
26419 | 1377 |
JavaThread* THREAD = JavaThread::current(); |
1378 |
JNIEnv* env = THREAD->jni_environment(); |
|
1379 |
ResourceMark rm(THREAD); |
|
1380 |
||
1381 |
// os::native_path writes into orig_copy |
|
1382 |
char* orig_copy = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, strlen(orig)+1); |
|
1383 |
strcpy(orig_copy, orig); |
|
1384 |
if ((CanonicalizeEntry)(env, os::native_path(orig_copy), out, len) < 0) { |
|
1 | 1385 |
return false; |
1386 |
} |
|
1387 |
} else { |
|
1388 |
// On JDK 1.2.2 the Canonicalize does not exist, so just do nothing |
|
1389 |
strncpy(out, orig, len); |
|
1390 |
out[len - 1] = '\0'; |
|
1391 |
} |
|
1392 |
return true; |
|
1393 |
} |
|
1394 |
||
1395 |
#ifndef PRODUCT |
|
1396 |
||
1397 |
void ClassLoader::verify() { |
|
1398 |
_package_hash_table->verify(); |
|
1399 |
} |
|
1400 |
||
1401 |
||
1402 |
// CompileTheWorld |
|
1403 |
// |
|
1404 |
// Iterates over all class path entries and forces compilation of all methods |
|
1405 |
// in all classes found. Currently, only zip/jar archives are searched. |
|
1406 |
// |
|
1407 |
// The classes are loaded by the Java level bootstrap class loader, and the |
|
1408 |
// initializer is called. If DelayCompilationDuringStartup is true (default), |
|
1409 |
// the interpreter will run the initialization code. Note that forcing |
|
1410 |
// initialization in this way could potentially lead to initialization order |
|
1411 |
// problems, in which case we could just force the initialization bit to be set. |
|
1412 |
||
1413 |
||
1414 |
// We need to iterate over the contents of a zip/jar file, so we replicate the |
|
1415 |
// jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile, |
|
1416 |
// since jzfile already has a void* definition. |
|
1417 |
// |
|
1418 |
// Note that this is only used in debug mode. |
|
1419 |
// |
|
1420 |
// HotSpot integration note: |
|
1421 |
// Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build |
|
1422 |
||
1423 |
||
1424 |
// JDK 1.3 version |
|
25057 | 1425 |
typedef struct real_jzentry { /* Zip file entry */ |
1 | 1426 |
char *name; /* entry name */ |
1427 |
jint time; /* modification time */ |
|
1428 |
jint size; /* size of uncompressed data */ |
|
1429 |
jint csize; /* size of compressed data (zero if uncompressed) */ |
|
1430 |
jint crc; /* crc of uncompressed data */ |
|
1431 |
char *comment; /* optional zip file comment */ |
|
1432 |
jbyte *extra; /* optional extra data */ |
|
1433 |
jint pos; /* position of LOC header (if negative) or data */ |
|
25057 | 1434 |
} real_jzentry; |
1 | 1435 |
|
25057 | 1436 |
typedef struct real_jzfile { /* Zip file */ |
1 | 1437 |
char *name; /* zip file name */ |
1438 |
jint refs; /* number of active references */ |
|
1439 |
jint fd; /* open file descriptor */ |
|
1440 |
void *lock; /* read lock */ |
|
1441 |
char *comment; /* zip file comment */ |
|
1442 |
char *msg; /* zip error message */ |
|
1443 |
void *entries; /* array of hash cells */ |
|
1444 |
jint total; /* total number of entries */ |
|
1445 |
unsigned short *table; /* Hash chain heads: indexes into entries */ |
|
1446 |
jint tablelen; /* number of hash eads */ |
|
25057 | 1447 |
real_jzfile *next; /* next zip file in search list */ |
1 | 1448 |
jzentry *cache; /* we cache the most recently freed jzentry */ |
1449 |
/* Information on metadata names in META-INF directory */ |
|
1450 |
char **metanames; /* array of meta names (may have null names) */ |
|
1451 |
jint metacount; /* number of slots in metanames array */ |
|
1452 |
/* If there are any per-entry comments, they are in the comments array */ |
|
1453 |
char **comments; |
|
25057 | 1454 |
} real_jzfile; |
1 | 1455 |
|
1456 |
void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) { |
|
1457 |
// For now we only compile all methods in all classes in zip/jar files |
|
1458 |
tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir); |
|
1459 |
tty->cr(); |
|
1460 |
} |
|
1461 |
||
27562 | 1462 |
bool ClassPathDirEntry::is_jrt() { |
1 | 1463 |
return false; |
1464 |
} |
|
1465 |
||
1466 |
void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) { |
|
25057 | 1467 |
real_jzfile* zip = (real_jzfile*) _zip; |
1468 |
tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name); |
|
1469 |
tty->cr(); |
|
1470 |
// Iterate over all entries in zip file |
|
1471 |
for (int n = 0; ; n++) { |
|
1472 |
real_jzentry * ze = (real_jzentry *)((*GetNextEntry)(_zip, n)); |
|
1473 |
if (ze == NULL) break; |
|
1474 |
ClassLoader::compile_the_world_in(ze->name, loader, CHECK); |
|
1 | 1475 |
} |
1476 |
if (HAS_PENDING_EXCEPTION) { |
|
1477 |
if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
|
1478 |
CLEAR_PENDING_EXCEPTION; |
|
1479 |
tty->print_cr("\nCompileTheWorld : Ran out of memory\n"); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1480 |
tty->print_cr("Increase class metadata storage if a limit was set"); |
1 | 1481 |
} else { |
1482 |
tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n"); |
|
1483 |
} |
|
1484 |
} |
|
1485 |
} |
|
1486 |
||
27562 | 1487 |
bool ClassPathZipEntry::is_jrt() { |
25057 | 1488 |
real_jzfile* zip = (real_jzfile*) _zip; |
1 | 1489 |
int len = (int)strlen(zip->name); |
1490 |
// Check whether zip name ends in "rt.jar" |
|
1491 |
// This will match other archives named rt.jar as well, but this is |
|
1492 |
// only used for debugging. |
|
27562 | 1493 |
return string_ends_with(zip->name, "rt.jar"); |
1 | 1494 |
} |
1495 |
||
1496 |
void LazyClassPathEntry::compile_the_world(Handle loader, TRAPS) { |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1497 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1498 |
if (cpe != NULL) { |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1499 |
cpe->compile_the_world(loader, CHECK); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1500 |
} |
1 | 1501 |
} |
1502 |
||
27562 | 1503 |
bool LazyClassPathEntry::is_jrt() { |
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1504 |
Thread* THREAD = Thread::current(); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1505 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1506 |
return (cpe != NULL) ? cpe->is_jar_file() : false; |
1 | 1507 |
} |
1508 |
||
1509 |
void ClassLoader::compile_the_world() { |
|
1510 |
EXCEPTION_MARK; |
|
1511 |
HandleMark hm(THREAD); |
|
1512 |
ResourceMark rm(THREAD); |
|
1513 |
// Make sure we don't run with background compilation |
|
1514 |
BackgroundCompilation = false; |
|
1515 |
// Find bootstrap loader |
|
1516 |
Handle system_class_loader (THREAD, SystemDictionary::java_system_loader()); |
|
1517 |
// Iterate over all bootstrap class path entries |
|
1518 |
ClassPathEntry* e = _first_entry; |
|
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1519 |
jlong start = os::javaTimeMillis(); |
1 | 1520 |
while (e != NULL) { |
1521 |
// We stop at rt.jar, unless it is the first bootstrap path entry |
|
27562 | 1522 |
if (e->is_jrt() && e != _first_entry) break; |
1 | 1523 |
e->compile_the_world(system_class_loader, CATCH); |
1524 |
e = e->next(); |
|
1525 |
} |
|
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1526 |
jlong end = os::javaTimeMillis(); |
24424
2658d7834c6e
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
22838
diff
changeset
|
1527 |
tty->print_cr("CompileTheWorld : Done (%d classes, %d methods, " JLONG_FORMAT " ms)", |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1528 |
_compile_the_world_class_counter, _compile_the_world_method_counter, (end - start)); |
1 | 1529 |
{ |
1530 |
// Print statistics as if before normal exit: |
|
1531 |
extern void print_statistics(); |
|
1532 |
print_statistics(); |
|
1533 |
} |
|
1534 |
vm_exit(0); |
|
1535 |
} |
|
1536 |
||
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1537 |
int ClassLoader::_compile_the_world_class_counter = 0; |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1538 |
int ClassLoader::_compile_the_world_method_counter = 0; |
4736
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1539 |
static int _codecache_sweep_counter = 0; |
1 | 1540 |
|
8327 | 1541 |
// Filter out all exceptions except OOMs |
1542 |
static void clear_pending_exception_if_not_oom(TRAPS) { |
|
1543 |
if (HAS_PENDING_EXCEPTION && |
|
1544 |
!PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
|
1545 |
CLEAR_PENDING_EXCEPTION; |
|
1546 |
} |
|
1547 |
// The CHECK at the caller will propagate the exception out |
|
1548 |
} |
|
1549 |
||
20008
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1550 |
/** |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1551 |
* Returns if the given method should be compiled when doing compile-the-world. |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1552 |
* |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1553 |
* TODO: This should be a private method in a CompileTheWorld class. |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1554 |
*/ |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1555 |
static bool can_be_compiled(methodHandle m, int comp_level) { |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1556 |
assert(CompileTheWorld, "must be"); |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1557 |
|
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1558 |
// It's not valid to compile a native wrapper for MethodHandle methods |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1559 |
// that take a MemberName appendix since the bytecode signature is not |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1560 |
// correct. |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1561 |
vmIntrinsics::ID iid = m->intrinsic_id(); |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1562 |
if (MethodHandles::is_signature_polymorphic(iid) && MethodHandles::has_member_arg(iid)) { |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1563 |
return false; |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1564 |
} |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1565 |
|
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1566 |
return CompilationPolicy::can_be_compiled(m, comp_level); |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1567 |
} |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1568 |
|
1 | 1569 |
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) { |
27562 | 1570 |
if (string_ends_with(name, ".class")) { |
1 | 1571 |
// We have a .class file |
27562 | 1572 |
int len = (int)strlen(name); |
1 | 1573 |
char buffer[2048]; |
1574 |
strncpy(buffer, name, len - 6); |
|
1575 |
buffer[len-6] = 0; |
|
1576 |
// If the file has a period after removing .class, it's not really a |
|
1577 |
// valid class file. The class loader will check everything else. |
|
1578 |
if (strchr(buffer, '.') == NULL) { |
|
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1579 |
_compile_the_world_class_counter++; |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1580 |
if (_compile_the_world_class_counter > CompileTheWorldStopAt) return; |
2567 | 1581 |
|
1582 |
// Construct name without extension |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7910
diff
changeset
|
1583 |
TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK); |
2567 | 1584 |
// Use loader to load and initialize class |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1585 |
Klass* ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD); |
2567 | 1586 |
instanceKlassHandle k (THREAD, ik); |
1587 |
if (k.not_null() && !HAS_PENDING_EXCEPTION) { |
|
1588 |
k->initialize(THREAD); |
|
1589 |
} |
|
1590 |
bool exception_occurred = HAS_PENDING_EXCEPTION; |
|
8327 | 1591 |
clear_pending_exception_if_not_oom(CHECK); |
2567 | 1592 |
if (CompileTheWorldPreloadClasses && k.not_null()) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1593 |
ConstantPool::preload_and_initialize_all_classes(k->constants(), THREAD); |
2567 | 1594 |
if (HAS_PENDING_EXCEPTION) { |
1595 |
// If something went wrong in preloading we just ignore it |
|
8327 | 1596 |
clear_pending_exception_if_not_oom(CHECK); |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1597 |
tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_class_counter, buffer); |
1 | 1598 |
} |
2567 | 1599 |
} |
1600 |
||
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1601 |
if (_compile_the_world_class_counter >= CompileTheWorldStartAt) { |
8497
aa7fd2c3caa9
6725983: Assertion "method->method_holder())->is_not_initialized(),"method holder must be initialized"
never
parents:
8327
diff
changeset
|
1602 |
if (k.is_null() || exception_occurred) { |
1 | 1603 |
// If something went wrong (e.g. ExceptionInInitializerError) we skip this class |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1604 |
tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_class_counter, buffer); |
1 | 1605 |
} else { |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1606 |
tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_class_counter, buffer); |
1 | 1607 |
// Preload all classes to get around uncommon traps |
1608 |
// Iterate over all methods in class |
|
17126
42a942feeea2
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
17004
diff
changeset
|
1609 |
int comp_level = CompilationPolicy::policy()->initial_compile_level(); |
1 | 1610 |
for (int n = 0; n < k->methods()->length(); n++) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1611 |
methodHandle m (THREAD, k->methods()->at(n)); |
20008
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1612 |
if (can_be_compiled(m, comp_level)) { |
4736
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1613 |
if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) { |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1614 |
// Give sweeper a chance to keep up with CTW |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1615 |
VM_ForceSafepoint op; |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1616 |
VMThread::execute(&op); |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1617 |
_codecache_sweep_counter = 0; |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1618 |
} |
1 | 1619 |
// Force compilation |
17126
42a942feeea2
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
17004
diff
changeset
|
1620 |
CompileBroker::compile_method(m, InvocationEntryBci, comp_level, |
1 | 1621 |
methodHandle(), 0, "CTW", THREAD); |
1622 |
if (HAS_PENDING_EXCEPTION) { |
|
8327 | 1623 |
clear_pending_exception_if_not_oom(CHECK); |
20008
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1624 |
tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string()); |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1625 |
} else { |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1626 |
_compile_the_world_method_counter++; |
1 | 1627 |
} |
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
8921
diff
changeset
|
1628 |
if (TieredCompilation && TieredStopAtLevel >= CompLevel_full_optimization) { |
2567 | 1629 |
// Clobber the first compile and force second tier compilation |
1630 |
nmethod* nm = m->code(); |
|
26581
cb21ee34883d
8057750: CTW should not make MH intrinsics not entrant
iveresov
parents:
26135
diff
changeset
|
1631 |
if (nm != NULL && !m->is_method_handle_intrinsic()) { |
2567 | 1632 |
// Throw out the code so that the code cache doesn't fill up |
1633 |
nm->make_not_entrant(); |
|
1634 |
m->clear_code(); |
|
1635 |
} |
|
6453 | 1636 |
CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_full_optimization, |
2567 | 1637 |
methodHandle(), 0, "CTW", THREAD); |
1638 |
if (HAS_PENDING_EXCEPTION) { |
|
8327 | 1639 |
clear_pending_exception_if_not_oom(CHECK); |
20008
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1640 |
tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string()); |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1641 |
} else { |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1642 |
_compile_the_world_method_counter++; |
2567 | 1643 |
} |
1 | 1644 |
} |
20008
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1645 |
} else { |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1646 |
tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string()); |
1 | 1647 |
} |
2567 | 1648 |
|
1649 |
nmethod* nm = m->code(); |
|
26581
cb21ee34883d
8057750: CTW should not make MH intrinsics not entrant
iveresov
parents:
26135
diff
changeset
|
1650 |
if (nm != NULL && !m->is_method_handle_intrinsic()) { |
2567 | 1651 |
// Throw out the code so that the code cache doesn't fill up |
1652 |
nm->make_not_entrant(); |
|
1653 |
m->clear_code(); |
|
1 | 1654 |
} |
1655 |
} |
|
1656 |
} |
|
1657 |
} |
|
1658 |
} |
|
1659 |
} |
|
1660 |
} |
|
1661 |
||
1662 |
#endif //PRODUCT |
|
7910
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1663 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1664 |
// 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
|
1665 |
// 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
|
1666 |
void PerfClassTraceTime::initialize() { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1667 |
if (!UsePerfData) return; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1668 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1669 |
if (_eventp != NULL) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1670 |
// increment the event counter |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1671 |
_eventp->inc(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1672 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1673 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1674 |
// stop the current active thread-local timer to measure inclusive time |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1675 |
_prev_active_event = -1; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1676 |
for (int i=0; i < EVENT_TYPE_COUNT; i++) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1677 |
if (_timers[i].is_active()) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1678 |
assert(_prev_active_event == -1, "should have only one active timer"); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1679 |
_prev_active_event = i; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1680 |
_timers[i].stop(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1681 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1682 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1683 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1684 |
if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1685 |
// start the inclusive timer if not recursively called |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1686 |
_t.start(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1687 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1688 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1689 |
// start thread-local timer of the given event type |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1690 |
if (!_timers[_event_type].is_active()) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1691 |
_timers[_event_type].start(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1692 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1693 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1694 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1695 |
PerfClassTraceTime::~PerfClassTraceTime() { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1696 |
if (!UsePerfData) return; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1697 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1698 |
// stop the thread-local timer as the event completes |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1699 |
// 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
|
1700 |
_timers[_event_type].stop(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1701 |
jlong selftime = _timers[_event_type].ticks(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1702 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1703 |
if (_prev_active_event >= 0) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1704 |
_timers[_prev_active_event].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 |
if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1708 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1709 |
// increment the counters only on the leaf call |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1710 |
_t.stop(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1711 |
_timep->inc(_t.ticks()); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1712 |
if (_selftimep != NULL) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1713 |
_selftimep->inc(selftime); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1714 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1715 |
// 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
|
1716 |
ClassLoader::perf_accumulated_time()->inc(selftime); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1717 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1718 |
// reset the timer |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1719 |
_timers[_event_type].reset(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1720 |
} |