author | drchase |
Fri, 09 May 2014 16:50:54 -0400 | |
changeset 24424 | 2658d7834c6e |
parent 22838 | 82c7497fbad4 |
child 25057 | f38210f84f8c |
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. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "classfile/classFileParser.hpp" |
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#include "classfile/classFileStream.hpp" |
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#include "classfile/classLoader.hpp" |
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#include "classfile/classLoaderData.inline.hpp" |
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#include "classfile/javaClasses.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
|
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#include "compiler/compileBroker.hpp" |
|
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#include "gc_interface/collectedHeap.inline.hpp" |
|
35 |
#include "interpreter/bytecodeStream.hpp" |
|
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#include "interpreter/oopMapCache.hpp" |
|
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#include "memory/allocation.inline.hpp" |
|
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#include "memory/generation.hpp" |
|
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#include "memory/oopFactory.hpp" |
|
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#include "memory/universe.inline.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/instanceRefKlass.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/symbol.hpp" |
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#include "prims/jvm_misc.hpp" |
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#include "runtime/arguments.hpp" |
|
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#include "runtime/compilationPolicy.hpp" |
|
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#include "runtime/fprofiler.hpp" |
|
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#include "runtime/handles.hpp" |
|
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#include "runtime/handles.inline.hpp" |
|
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#include "runtime/init.hpp" |
|
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#include "runtime/interfaceSupport.hpp" |
|
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#include "runtime/java.hpp" |
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#include "runtime/javaCalls.hpp" |
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#include "runtime/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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#ifdef TARGET_OS_FAMILY_linux |
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# include "os_linux.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_solaris |
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# include "os_solaris.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_windows |
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# include "os_windows.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_aix |
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# include "os_aix.inline.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_bsd |
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# include "os_bsd.inline.hpp" |
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#endif |
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78 |
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// Entry points in zip.dll for loading zip/jar file entries |
|
80 |
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81 |
typedef void * * (JNICALL *ZipOpen_t)(const char *name, char **pmsg); |
|
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typedef void (JNICALL *ZipClose_t)(jzfile *zip); |
|
83 |
typedef jzentry* (JNICALL *FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen); |
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84 |
typedef jboolean (JNICALL *ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf); |
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85 |
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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88 |
static ZipOpen_t ZipOpen = NULL; |
|
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static ZipClose_t ZipClose = NULL; |
|
90 |
static FindEntry_t FindEntry = NULL; |
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91 |
static ReadEntry_t ReadEntry = NULL; |
|
92 |
static ReadMappedEntry_t ReadMappedEntry = NULL; |
|
93 |
static GetNextEntry_t GetNextEntry = NULL; |
|
94 |
static canonicalize_fn_t CanonicalizeEntry = NULL; |
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95 |
||
96 |
// Globals |
|
97 |
||
98 |
PerfCounter* ClassLoader::_perf_accumulated_time = NULL; |
|
99 |
PerfCounter* ClassLoader::_perf_classes_inited = NULL; |
|
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PerfCounter* ClassLoader::_perf_class_init_time = NULL; |
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PerfCounter* ClassLoader::_perf_class_init_selftime = NULL; |
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PerfCounter* ClassLoader::_perf_classes_verified = NULL; |
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PerfCounter* ClassLoader::_perf_class_verify_time = NULL; |
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PerfCounter* ClassLoader::_perf_class_verify_selftime = NULL; |
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PerfCounter* ClassLoader::_perf_classes_linked = NULL; |
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PerfCounter* ClassLoader::_perf_class_link_time = NULL; |
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PerfCounter* ClassLoader::_perf_class_link_selftime = NULL; |
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PerfCounter* ClassLoader::_perf_class_parse_time = NULL; |
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PerfCounter* ClassLoader::_perf_class_parse_selftime = NULL; |
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PerfCounter* ClassLoader::_perf_sys_class_lookup_time = NULL; |
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PerfCounter* ClassLoader::_perf_shared_classload_time = NULL; |
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PerfCounter* ClassLoader::_perf_sys_classload_time = NULL; |
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PerfCounter* ClassLoader::_perf_app_classload_time = NULL; |
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PerfCounter* ClassLoader::_perf_app_classload_selftime = NULL; |
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PerfCounter* ClassLoader::_perf_app_classload_count = NULL; |
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PerfCounter* ClassLoader::_perf_define_appclasses = NULL; |
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PerfCounter* ClassLoader::_perf_define_appclass_time = NULL; |
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PerfCounter* ClassLoader::_perf_define_appclass_selftime = NULL; |
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PerfCounter* ClassLoader::_perf_app_classfile_bytes_read = NULL; |
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PerfCounter* ClassLoader::_perf_sys_classfile_bytes_read = NULL; |
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PerfCounter* ClassLoader::_sync_systemLoaderLockContentionRate = NULL; |
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PerfCounter* ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL; |
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PerfCounter* ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL; |
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PerfCounter* ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL; |
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PerfCounter* ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL; |
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PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = NULL; |
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PerfCounter* ClassLoader::_isUnsyncloadClass = NULL; |
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PerfCounter* ClassLoader::_load_instance_class_failCounter = NULL; |
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ClassPathEntry* ClassLoader::_first_entry = NULL; |
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ClassPathEntry* ClassLoader::_last_entry = NULL; |
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132 |
PackageHashtable* ClassLoader::_package_hash_table = NULL; |
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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; |
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140 |
} |
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return (strncmp(str, str_to_find, str_to_find_len) == 0); |
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142 |
} |
|
143 |
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144 |
bool string_ends_with(const char* str, const char* str_to_find) { |
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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) { |
|
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return false; |
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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 |
} |
|
152 |
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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; |
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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*)); |
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162 |
} |
|
163 |
} |
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164 |
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165 |
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MetaIndex::~MetaIndex() { |
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FREE_C_HEAP_ARRAY(char*, _meta_package_names, mtClass); |
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} |
169 |
||
170 |
||
171 |
bool MetaIndex::may_contain(const char* class_name) { |
|
172 |
if ( _num_meta_package_names == 0) { |
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173 |
return false; |
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174 |
} |
|
175 |
size_t class_name_len = strlen(class_name); |
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176 |
for (int i = 0; i < _num_meta_package_names; i++) { |
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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)) { |
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181 |
return true; |
|
182 |
} |
|
183 |
} |
|
184 |
return false; |
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185 |
} |
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186 |
||
187 |
||
188 |
ClassPathEntry::ClassPathEntry() { |
|
189 |
set_next(NULL); |
|
190 |
} |
|
191 |
||
192 |
||
193 |
bool ClassPathEntry::is_lazy() { |
|
194 |
return false; |
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195 |
} |
|
196 |
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197 |
ClassPathDirEntry::ClassPathDirEntry(char* dir) : ClassPathEntry() { |
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_dir = NEW_C_HEAP_ARRAY(char, strlen(dir)+1, mtClass); |
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strcpy(_dir, dir); |
200 |
} |
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ClassFileStream* ClassPathDirEntry::open_stream(const char* name, TRAPS) { |
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// construct full path name |
205 |
char path[JVM_MAXPATHLEN]; |
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206 |
if (jio_snprintf(path, sizeof(path), "%s%s%s", _dir, os::file_separator(), name) == -1) { |
|
207 |
return NULL; |
|
208 |
} |
|
209 |
// check if file exists |
|
210 |
struct stat st; |
|
211 |
if (os::stat(path, &st) == 0) { |
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212 |
// found file, open it |
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int file_handle = os::open(path, 0, 0); |
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if (file_handle != -1) { |
215 |
// read contents into resource array |
|
216 |
u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size); |
|
217 |
size_t num_read = os::read(file_handle, (char*) buffer, st.st_size); |
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218 |
// close file |
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os::close(file_handle); |
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// construct ClassFileStream |
221 |
if (num_read == (size_t)st.st_size) { |
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if (UsePerfData) { |
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ClassLoader::perf_sys_classfile_bytes_read()->inc(num_read); |
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} |
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return new ClassFileStream(buffer, st.st_size, _dir); // Resource allocated |
226 |
} |
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227 |
} |
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228 |
} |
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229 |
return NULL; |
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230 |
} |
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231 |
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232 |
||
233 |
ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name) : ClassPathEntry() { |
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234 |
_zip = zip; |
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13195 | 235 |
_zip_name = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1, mtClass); |
1 | 236 |
strcpy(_zip_name, zip_name); |
237 |
} |
|
238 |
||
239 |
ClassPathZipEntry::~ClassPathZipEntry() { |
|
240 |
if (ZipClose != NULL) { |
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241 |
(*ZipClose)(_zip); |
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242 |
} |
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13195 | 243 |
FREE_C_HEAP_ARRAY(char, _zip_name, mtClass); |
1 | 244 |
} |
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ClassFileStream* ClassPathZipEntry::open_stream(const char* name, TRAPS) { |
1 | 247 |
// enable call to C land |
248 |
JavaThread* thread = JavaThread::current(); |
|
249 |
ThreadToNativeFromVM ttn(thread); |
|
250 |
// check whether zip archive contains name |
|
251 |
jint filesize, name_len; |
|
252 |
jzentry* entry = (*FindEntry)(_zip, name, &filesize, &name_len); |
|
253 |
if (entry == NULL) return NULL; |
|
254 |
u1* buffer; |
|
255 |
char name_buf[128]; |
|
256 |
char* filename; |
|
257 |
if (name_len < 128) { |
|
258 |
filename = name_buf; |
|
259 |
} else { |
|
260 |
filename = NEW_RESOURCE_ARRAY(char, name_len + 1); |
|
261 |
} |
|
262 |
||
263 |
// file found, get pointer to class in mmaped jar file. |
|
264 |
if (ReadMappedEntry == NULL || |
|
265 |
!(*ReadMappedEntry)(_zip, entry, &buffer, filename)) { |
|
266 |
// mmaped access not available, perhaps due to compression, |
|
267 |
// read contents into resource array |
|
268 |
buffer = NEW_RESOURCE_ARRAY(u1, filesize); |
|
269 |
if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL; |
|
270 |
} |
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if (UsePerfData) { |
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ClassLoader::perf_sys_classfile_bytes_read()->inc(filesize); |
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273 |
} |
1 | 274 |
// return result |
275 |
return new ClassFileStream(buffer, filesize, _zip_name); // Resource allocated |
|
276 |
} |
|
277 |
||
278 |
// invoke function for each entry in the zip file |
|
279 |
void ClassPathZipEntry::contents_do(void f(const char* name, void* context), void* context) { |
|
280 |
JavaThread* thread = JavaThread::current(); |
|
281 |
HandleMark handle_mark(thread); |
|
282 |
ThreadToNativeFromVM ttn(thread); |
|
283 |
for (int n = 0; ; n++) { |
|
284 |
jzentry * ze = ((*GetNextEntry)(_zip, n)); |
|
285 |
if (ze == NULL) break; |
|
286 |
(*f)(ze->name, context); |
|
287 |
} |
|
288 |
} |
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LazyClassPathEntry::LazyClassPathEntry(char* path, const struct stat* st) : ClassPathEntry() { |
1 | 291 |
_path = strdup(path); |
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_st = *st; |
1 | 293 |
_meta_index = NULL; |
294 |
_resolved_entry = NULL; |
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_has_error = false; |
1 | 296 |
} |
297 |
||
298 |
bool LazyClassPathEntry::is_jar_file() { |
|
299 |
return ((_st.st_mode & S_IFREG) == S_IFREG); |
|
300 |
} |
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ClassPathEntry* LazyClassPathEntry::resolve_entry(TRAPS) { |
1 | 303 |
if (_resolved_entry != NULL) { |
304 |
return (ClassPathEntry*) _resolved_entry; |
|
305 |
} |
|
306 |
ClassPathEntry* new_entry = NULL; |
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new_entry = ClassLoader::create_class_path_entry(_path, &_st, false, CHECK_NULL); |
1 | 308 |
{ |
309 |
ThreadCritical tc; |
|
310 |
if (_resolved_entry == NULL) { |
|
311 |
_resolved_entry = new_entry; |
|
312 |
return new_entry; |
|
313 |
} |
|
314 |
} |
|
315 |
assert(_resolved_entry != NULL, "bug in MT-safe resolution logic"); |
|
316 |
delete new_entry; |
|
317 |
return (ClassPathEntry*) _resolved_entry; |
|
318 |
} |
|
319 |
||
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320 |
ClassFileStream* LazyClassPathEntry::open_stream(const char* name, TRAPS) { |
1 | 321 |
if (_meta_index != NULL && |
322 |
!_meta_index->may_contain(name)) { |
|
323 |
return NULL; |
|
324 |
} |
|
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|
325 |
if (_has_error) { |
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|
326 |
return NULL; |
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|
327 |
} |
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|
328 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
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|
329 |
if (cpe == NULL) { |
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330 |
_has_error = true; |
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|
331 |
return NULL; |
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|
332 |
} else { |
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|
333 |
return cpe->open_stream(name, THREAD); |
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|
334 |
} |
1 | 335 |
} |
336 |
||
337 |
bool LazyClassPathEntry::is_lazy() { |
|
338 |
return true; |
|
339 |
} |
|
340 |
||
341 |
static void print_meta_index(LazyClassPathEntry* entry, |
|
342 |
GrowableArray<char*>& meta_packages) { |
|
343 |
tty->print("[Meta index for %s=", entry->name()); |
|
344 |
for (int i = 0; i < meta_packages.length(); i++) { |
|
345 |
if (i > 0) tty->print(" "); |
|
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|
346 |
tty->print("%s", meta_packages.at(i)); |
1 | 347 |
} |
348 |
tty->print_cr("]"); |
|
349 |
} |
|
350 |
||
351 |
||
352 |
void ClassLoader::setup_meta_index() { |
|
353 |
// Set up meta index which allows us to open boot jars lazily if |
|
354 |
// class data sharing is enabled |
|
355 |
const char* known_version = "% VERSION 2"; |
|
356 |
char* meta_index_path = Arguments::get_meta_index_path(); |
|
357 |
char* meta_index_dir = Arguments::get_meta_index_dir(); |
|
358 |
FILE* file = fopen(meta_index_path, "r"); |
|
359 |
int line_no = 0; |
|
360 |
if (file != NULL) { |
|
361 |
ResourceMark rm; |
|
362 |
LazyClassPathEntry* cur_entry = NULL; |
|
363 |
GrowableArray<char*> boot_class_path_packages(10); |
|
364 |
char package_name[256]; |
|
365 |
bool skipCurrentJar = false; |
|
366 |
while (fgets(package_name, sizeof(package_name), file) != NULL) { |
|
367 |
++line_no; |
|
368 |
// Remove trailing newline |
|
369 |
package_name[strlen(package_name) - 1] = '\0'; |
|
370 |
switch(package_name[0]) { |
|
371 |
case '%': |
|
372 |
{ |
|
373 |
if ((line_no == 1) && (strcmp(package_name, known_version) != 0)) { |
|
374 |
if (TraceClassLoading && Verbose) { |
|
375 |
tty->print("[Unsupported meta index version]"); |
|
376 |
} |
|
377 |
fclose(file); |
|
378 |
return; |
|
379 |
} |
|
380 |
} |
|
381 |
||
382 |
// These directives indicate jar files which contain only |
|
383 |
// classes, only non-classfile resources, or a combination of |
|
384 |
// the two. See src/share/classes/sun/misc/MetaIndex.java and |
|
385 |
// make/tools/MetaIndex/BuildMetaIndex.java in the J2SE |
|
386 |
// workspace. |
|
387 |
case '#': |
|
388 |
case '!': |
|
389 |
case '@': |
|
390 |
{ |
|
391 |
// Hand off current packages to current lazy entry (if any) |
|
392 |
if ((cur_entry != NULL) && |
|
393 |
(boot_class_path_packages.length() > 0)) { |
|
394 |
if (TraceClassLoading && Verbose) { |
|
395 |
print_meta_index(cur_entry, boot_class_path_packages); |
|
396 |
} |
|
397 |
MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0), |
|
398 |
boot_class_path_packages.length()); |
|
399 |
cur_entry->set_meta_index(index); |
|
400 |
} |
|
401 |
cur_entry = NULL; |
|
402 |
boot_class_path_packages.clear(); |
|
403 |
||
404 |
// Find lazy entry corresponding to this jar file |
|
405 |
for (ClassPathEntry* entry = _first_entry; entry != NULL; entry = entry->next()) { |
|
406 |
if (entry->is_lazy() && |
|
407 |
string_starts_with(entry->name(), meta_index_dir) && |
|
408 |
string_ends_with(entry->name(), &package_name[2])) { |
|
409 |
cur_entry = (LazyClassPathEntry*) entry; |
|
410 |
break; |
|
411 |
} |
|
412 |
} |
|
413 |
||
414 |
// If the first character is '@', it indicates the following jar |
|
415 |
// file is a resource only jar file in which case, we should skip |
|
416 |
// reading the subsequent entries since the resource loading is |
|
417 |
// totally handled by J2SE side. |
|
418 |
if (package_name[0] == '@') { |
|
419 |
if (cur_entry != NULL) { |
|
420 |
cur_entry->set_meta_index(new MetaIndex(NULL, 0)); |
|
421 |
} |
|
422 |
cur_entry = NULL; |
|
423 |
skipCurrentJar = true; |
|
424 |
} else { |
|
425 |
skipCurrentJar = false; |
|
426 |
} |
|
427 |
||
428 |
break; |
|
429 |
} |
|
430 |
||
431 |
default: |
|
432 |
{ |
|
433 |
if (!skipCurrentJar && cur_entry != NULL) { |
|
434 |
char* new_name = strdup(package_name); |
|
435 |
boot_class_path_packages.append(new_name); |
|
436 |
} |
|
437 |
} |
|
438 |
} |
|
439 |
} |
|
440 |
// Hand off current packages to current lazy entry (if any) |
|
441 |
if ((cur_entry != NULL) && |
|
442 |
(boot_class_path_packages.length() > 0)) { |
|
443 |
if (TraceClassLoading && Verbose) { |
|
444 |
print_meta_index(cur_entry, boot_class_path_packages); |
|
445 |
} |
|
446 |
MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0), |
|
447 |
boot_class_path_packages.length()); |
|
448 |
cur_entry->set_meta_index(index); |
|
449 |
} |
|
450 |
fclose(file); |
|
451 |
} |
|
452 |
} |
|
453 |
||
454 |
void ClassLoader::setup_bootstrap_search_path() { |
|
455 |
assert(_first_entry == NULL, "should not setup bootstrap class search path twice"); |
|
456 |
char* sys_class_path = os::strdup(Arguments::get_sysclasspath()); |
|
457 |
if (TraceClassLoading && Verbose) { |
|
458 |
tty->print_cr("[Bootstrap loader class path=%s]", sys_class_path); |
|
459 |
} |
|
460 |
||
461 |
int len = (int)strlen(sys_class_path); |
|
462 |
int end = 0; |
|
463 |
||
464 |
// Iterate over class path entries |
|
465 |
for (int start = 0; start < len; start = end) { |
|
466 |
while (sys_class_path[end] && sys_class_path[end] != os::path_separator()[0]) { |
|
467 |
end++; |
|
468 |
} |
|
13195 | 469 |
char* path = NEW_C_HEAP_ARRAY(char, end-start+1, mtClass); |
1 | 470 |
strncpy(path, &sys_class_path[start], end-start); |
471 |
path[end-start] = '\0'; |
|
472 |
update_class_path_entry_list(path, false); |
|
13195 | 473 |
FREE_C_HEAP_ARRAY(char, path, mtClass); |
1 | 474 |
while (sys_class_path[end] == os::path_separator()[0]) { |
475 |
end++; |
|
476 |
} |
|
477 |
} |
|
478 |
} |
|
479 |
||
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changeset
|
480 |
ClassPathEntry* ClassLoader::create_class_path_entry(char *path, const struct stat* st, bool lazy, TRAPS) { |
1 | 481 |
JavaThread* thread = JavaThread::current(); |
482 |
if (lazy) { |
|
19685
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8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
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parents:
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diff
changeset
|
483 |
return new LazyClassPathEntry(path, st); |
1 | 484 |
} |
19685
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ccheung
parents:
19158
diff
changeset
|
485 |
ClassPathEntry* new_entry = NULL; |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
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diff
changeset
|
486 |
if ((st->st_mode & S_IFREG) == S_IFREG) { |
1 | 487 |
// Regular file, should be a zip file |
488 |
// Canonicalized filename |
|
489 |
char canonical_path[JVM_MAXPATHLEN]; |
|
490 |
if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) { |
|
491 |
// This matches the classic VM |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
492 |
THROW_MSG_(vmSymbols::java_io_IOException(), "Bad pathname", NULL); |
1 | 493 |
} |
494 |
char* error_msg = NULL; |
|
495 |
jzfile* zip; |
|
496 |
{ |
|
497 |
// enable call to C land |
|
498 |
ThreadToNativeFromVM ttn(thread); |
|
499 |
HandleMark hm(thread); |
|
500 |
zip = (*ZipOpen)(canonical_path, &error_msg); |
|
501 |
} |
|
502 |
if (zip != NULL && error_msg == NULL) { |
|
19685
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8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
503 |
new_entry = new ClassPathZipEntry(zip, path); |
1 | 504 |
if (TraceClassLoading) { |
505 |
tty->print_cr("[Opened %s]", path); |
|
506 |
} |
|
507 |
} else { |
|
508 |
ResourceMark rm(thread); |
|
509 |
char *msg; |
|
510 |
if (error_msg == NULL) { |
|
511 |
msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ; |
|
512 |
jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path); |
|
513 |
} else { |
|
514 |
int len = (int)(strlen(path) + strlen(error_msg) + 128); |
|
515 |
msg = NEW_RESOURCE_ARRAY(char, len); ; |
|
516 |
jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path); |
|
517 |
} |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
518 |
THROW_MSG_(vmSymbols::java_lang_ClassNotFoundException(), msg, NULL); |
1 | 519 |
} |
520 |
} else { |
|
521 |
// Directory |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
522 |
new_entry = new ClassPathDirEntry(path); |
1 | 523 |
if (TraceClassLoading) { |
524 |
tty->print_cr("[Path %s]", path); |
|
525 |
} |
|
526 |
} |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
527 |
return new_entry; |
1 | 528 |
} |
529 |
||
530 |
||
531 |
// Create a class path zip entry for a given path (return NULL if not found |
|
532 |
// or zip/JAR file cannot be opened) |
|
533 |
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) { |
|
534 |
// check for a regular file |
|
535 |
struct stat st; |
|
536 |
if (os::stat(path, &st) == 0) { |
|
537 |
if ((st.st_mode & S_IFREG) == S_IFREG) { |
|
538 |
char orig_path[JVM_MAXPATHLEN]; |
|
539 |
char canonical_path[JVM_MAXPATHLEN]; |
|
540 |
||
541 |
strcpy(orig_path, path); |
|
542 |
if (get_canonical_path(orig_path, canonical_path, JVM_MAXPATHLEN)) { |
|
543 |
char* error_msg = NULL; |
|
544 |
jzfile* zip; |
|
545 |
{ |
|
546 |
// enable call to C land |
|
547 |
JavaThread* thread = JavaThread::current(); |
|
548 |
ThreadToNativeFromVM ttn(thread); |
|
549 |
HandleMark hm(thread); |
|
550 |
zip = (*ZipOpen)(canonical_path, &error_msg); |
|
551 |
} |
|
552 |
if (zip != NULL && error_msg == NULL) { |
|
553 |
// create using canonical path |
|
554 |
return new ClassPathZipEntry(zip, canonical_path); |
|
555 |
} |
|
556 |
} |
|
557 |
} |
|
558 |
} |
|
559 |
return NULL; |
|
560 |
} |
|
561 |
||
562 |
// returns true if entry already on class path |
|
563 |
bool ClassLoader::contains_entry(ClassPathEntry *entry) { |
|
564 |
ClassPathEntry* e = _first_entry; |
|
565 |
while (e != NULL) { |
|
566 |
// assume zip entries have been canonicalized |
|
567 |
if (strcmp(entry->name(), e->name()) == 0) { |
|
568 |
return true; |
|
569 |
} |
|
570 |
e = e->next(); |
|
571 |
} |
|
572 |
return false; |
|
573 |
} |
|
574 |
||
575 |
void ClassLoader::add_to_list(ClassPathEntry *new_entry) { |
|
576 |
if (new_entry != NULL) { |
|
577 |
if (_last_entry == NULL) { |
|
578 |
_first_entry = _last_entry = new_entry; |
|
579 |
} else { |
|
580 |
_last_entry->set_next(new_entry); |
|
581 |
_last_entry = new_entry; |
|
582 |
} |
|
583 |
} |
|
584 |
} |
|
585 |
||
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
586 |
void ClassLoader::update_class_path_entry_list(char *path, |
1 | 587 |
bool check_for_duplicates) { |
588 |
struct stat st; |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
589 |
if (os::stat(path, &st) == 0) { |
1 | 590 |
// File or directory found |
591 |
ClassPathEntry* new_entry = NULL; |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
592 |
Thread* THREAD = Thread::current(); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
593 |
new_entry = create_class_path_entry(path, &st, LazyBootClassLoader, CHECK); |
1 | 594 |
// The kernel VM adds dynamically to the end of the classloader path and |
595 |
// doesn't reorder the bootclasspath which would break java.lang.Package |
|
596 |
// (see PackageInfo). |
|
597 |
// Add new entry to linked list |
|
598 |
if (!check_for_duplicates || !contains_entry(new_entry)) { |
|
599 |
add_to_list(new_entry); |
|
600 |
} |
|
601 |
} |
|
602 |
} |
|
603 |
||
604 |
void ClassLoader::print_bootclasspath() { |
|
605 |
ClassPathEntry* e = _first_entry; |
|
606 |
tty->print("[bootclasspath= "); |
|
607 |
while (e != NULL) { |
|
608 |
tty->print("%s ;", e->name()); |
|
609 |
e = e->next(); |
|
610 |
} |
|
611 |
tty->print_cr("]"); |
|
612 |
} |
|
613 |
||
614 |
void ClassLoader::load_zip_library() { |
|
615 |
assert(ZipOpen == NULL, "should not load zip library twice"); |
|
616 |
// First make sure native library is loaded |
|
617 |
os::native_java_library(); |
|
618 |
// Load zip library |
|
619 |
char path[JVM_MAXPATHLEN]; |
|
620 |
char ebuf[1024]; |
|
14471
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
13728
diff
changeset
|
621 |
void* handle = NULL; |
f3a6b82e25cf
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
13728
diff
changeset
|
622 |
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
|
623 |
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
|
624 |
} |
1 | 625 |
if (handle == NULL) { |
626 |
vm_exit_during_initialization("Unable to load ZIP library", path); |
|
627 |
} |
|
628 |
// Lookup zip entry points |
|
7405
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
629 |
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
|
630 |
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
|
631 |
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
|
632 |
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
|
633 |
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
|
634 |
GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, os::dll_lookup(handle, "ZIP_GetNextEntry")); |
1 | 635 |
|
636 |
// ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL |
|
637 |
if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL || GetNextEntry == NULL) { |
|
638 |
vm_exit_during_initialization("Corrupted ZIP library", path); |
|
639 |
} |
|
640 |
||
641 |
// Lookup canonicalize entry in libjava.dll |
|
642 |
void *javalib_handle = os::native_java_library(); |
|
7405
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
643 |
CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, os::dll_lookup(javalib_handle, "Canonicalize")); |
1 | 644 |
// This lookup only works on 1.3. Do not check for non-null here |
645 |
} |
|
646 |
||
647 |
// PackageInfo data exists in order to support the java.lang.Package |
|
648 |
// class. A Package object provides information about a java package |
|
649 |
// (version, vendor, etc.) which originates in the manifest of the jar |
|
650 |
// file supplying the package. For application classes, the ClassLoader |
|
651 |
// object takes care of this. |
|
652 |
||
653 |
// For system (boot) classes, the Java code in the Package class needs |
|
654 |
// to be able to identify which source jar file contained the boot |
|
655 |
// class, so that it can extract the manifest from it. This table |
|
656 |
// identifies java packages with jar files in the boot classpath. |
|
657 |
||
658 |
// Because the boot classpath cannot change, the classpath index is |
|
659 |
// sufficient to identify the source jar file or directory. (Since |
|
660 |
// directories have no manifests, the directory name is not required, |
|
661 |
// but is available.) |
|
662 |
||
663 |
// When using sharing -- the pathnames of entries in the boot classpath |
|
664 |
// may not be the same at runtime as they were when the archive was |
|
665 |
// created (NFS, Samba, etc.). The actual files and directories named |
|
666 |
// in the classpath must be the same files, in the same order, even |
|
667 |
// though the exact name is not the same. |
|
668 |
||
13195 | 669 |
class PackageInfo: public BasicHashtableEntry<mtClass> { |
1 | 670 |
public: |
671 |
const char* _pkgname; // Package name |
|
672 |
int _classpath_index; // Index of directory or JAR file loaded from |
|
673 |
||
674 |
PackageInfo* next() { |
|
13195 | 675 |
return (PackageInfo*)BasicHashtableEntry<mtClass>::next(); |
1 | 676 |
} |
677 |
||
678 |
const char* pkgname() { return _pkgname; } |
|
679 |
void set_pkgname(char* pkgname) { _pkgname = pkgname; } |
|
680 |
||
681 |
const char* filename() { |
|
682 |
return ClassLoader::classpath_entry(_classpath_index)->name(); |
|
683 |
} |
|
684 |
||
685 |
void set_index(int index) { |
|
686 |
_classpath_index = index; |
|
687 |
} |
|
688 |
}; |
|
689 |
||
690 |
||
13195 | 691 |
class PackageHashtable : public BasicHashtable<mtClass> { |
1 | 692 |
private: |
693 |
inline unsigned int compute_hash(const char *s, int n) { |
|
694 |
unsigned int val = 0; |
|
695 |
while (--n >= 0) { |
|
696 |
val = *s++ + 31 * val; |
|
697 |
} |
|
698 |
return val; |
|
699 |
} |
|
700 |
||
701 |
PackageInfo* bucket(int index) { |
|
13195 | 702 |
return (PackageInfo*)BasicHashtable<mtClass>::bucket(index); |
1 | 703 |
} |
704 |
||
705 |
PackageInfo* get_entry(int index, unsigned int hash, |
|
706 |
const char* pkgname, size_t n) { |
|
707 |
for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) { |
|
708 |
if (pp->hash() == hash && |
|
709 |
strncmp(pkgname, pp->pkgname(), n) == 0 && |
|
710 |
pp->pkgname()[n] == '\0') { |
|
711 |
return pp; |
|
712 |
} |
|
713 |
} |
|
714 |
return NULL; |
|
715 |
} |
|
716 |
||
717 |
public: |
|
718 |
PackageHashtable(int table_size) |
|
13195 | 719 |
: BasicHashtable<mtClass>(table_size, sizeof(PackageInfo)) {} |
1 | 720 |
|
13195 | 721 |
PackageHashtable(int table_size, HashtableBucket<mtClass>* t, int number_of_entries) |
722 |
: BasicHashtable<mtClass>(table_size, sizeof(PackageInfo), t, number_of_entries) {} |
|
1 | 723 |
|
724 |
PackageInfo* get_entry(const char* pkgname, int n) { |
|
725 |
unsigned int hash = compute_hash(pkgname, n); |
|
726 |
return get_entry(hash_to_index(hash), hash, pkgname, n); |
|
727 |
} |
|
728 |
||
729 |
PackageInfo* new_entry(char* pkgname, int n) { |
|
730 |
unsigned int hash = compute_hash(pkgname, n); |
|
731 |
PackageInfo* pp; |
|
13195 | 732 |
pp = (PackageInfo*)BasicHashtable<mtClass>::new_entry(hash); |
1 | 733 |
pp->set_pkgname(pkgname); |
734 |
return pp; |
|
735 |
} |
|
736 |
||
737 |
void add_entry(PackageInfo* pp) { |
|
738 |
int index = hash_to_index(pp->hash()); |
|
13195 | 739 |
BasicHashtable<mtClass>::add_entry(index, pp); |
1 | 740 |
} |
741 |
||
742 |
void copy_pkgnames(const char** packages) { |
|
743 |
int n = 0; |
|
744 |
for (int i = 0; i < table_size(); ++i) { |
|
745 |
for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) { |
|
746 |
packages[n++] = pp->pkgname(); |
|
747 |
} |
|
748 |
} |
|
749 |
assert(n == number_of_entries(), "just checking"); |
|
750 |
} |
|
751 |
||
752 |
void copy_table(char** top, char* end, PackageHashtable* table); |
|
753 |
}; |
|
754 |
||
755 |
||
756 |
void PackageHashtable::copy_table(char** top, char* end, |
|
757 |
PackageHashtable* table) { |
|
758 |
// Copy (relocate) the table to the shared space. |
|
13195 | 759 |
BasicHashtable<mtClass>::copy_table(top, end); |
1 | 760 |
|
761 |
// Calculate the space needed for the package name strings. |
|
762 |
int i; |
|
763 |
int n = 0; |
|
764 |
for (i = 0; i < table_size(); ++i) { |
|
765 |
for (PackageInfo* pp = table->bucket(i); |
|
766 |
pp != NULL; |
|
767 |
pp = pp->next()) { |
|
768 |
n += (int)(strlen(pp->pkgname()) + 1); |
|
769 |
} |
|
770 |
} |
|
771 |
if (*top + n + sizeof(intptr_t) >= end) { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7910
diff
changeset
|
772 |
report_out_of_shared_space(SharedMiscData); |
1 | 773 |
} |
774 |
||
775 |
// Copy the table data (the strings) to the shared space. |
|
776 |
n = align_size_up(n, sizeof(HeapWord)); |
|
777 |
*(intptr_t*)(*top) = n; |
|
778 |
*top += sizeof(intptr_t); |
|
779 |
||
780 |
for (i = 0; i < table_size(); ++i) { |
|
781 |
for (PackageInfo* pp = table->bucket(i); |
|
782 |
pp != NULL; |
|
783 |
pp = pp->next()) { |
|
784 |
int n1 = (int)(strlen(pp->pkgname()) + 1); |
|
785 |
pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1)); |
|
786 |
*top += n1; |
|
787 |
} |
|
788 |
} |
|
789 |
*top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord)); |
|
790 |
} |
|
791 |
||
792 |
||
793 |
void ClassLoader::copy_package_info_buckets(char** top, char* end) { |
|
794 |
_package_hash_table->copy_buckets(top, end); |
|
795 |
} |
|
796 |
||
797 |
void ClassLoader::copy_package_info_table(char** top, char* end) { |
|
798 |
_package_hash_table->copy_table(top, end, _package_hash_table); |
|
799 |
} |
|
800 |
||
801 |
||
802 |
PackageInfo* ClassLoader::lookup_package(const char *pkgname) { |
|
803 |
const char *cp = strrchr(pkgname, '/'); |
|
804 |
if (cp != NULL) { |
|
805 |
// Package prefix found |
|
806 |
int n = cp - pkgname + 1; |
|
807 |
return _package_hash_table->get_entry(pkgname, n); |
|
808 |
} |
|
809 |
return NULL; |
|
810 |
} |
|
811 |
||
812 |
||
813 |
bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) { |
|
814 |
assert(pkgname != NULL, "just checking"); |
|
815 |
// Bootstrap loader no longer holds system loader lock obj serializing |
|
816 |
// load_instance_class and thereby add_package |
|
817 |
{ |
|
818 |
MutexLocker ml(PackageTable_lock, THREAD); |
|
819 |
// First check for previously loaded entry |
|
820 |
PackageInfo* pp = lookup_package(pkgname); |
|
821 |
if (pp != NULL) { |
|
822 |
// Existing entry found, check source of package |
|
823 |
pp->set_index(classpath_index); |
|
824 |
return true; |
|
825 |
} |
|
826 |
||
827 |
const char *cp = strrchr(pkgname, '/'); |
|
828 |
if (cp != NULL) { |
|
829 |
// Package prefix found |
|
830 |
int n = cp - pkgname + 1; |
|
831 |
||
13195 | 832 |
char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1, mtClass); |
1 | 833 |
if (new_pkgname == NULL) { |
834 |
return false; |
|
835 |
} |
|
836 |
||
837 |
memcpy(new_pkgname, pkgname, n); |
|
838 |
new_pkgname[n] = '\0'; |
|
839 |
pp = _package_hash_table->new_entry(new_pkgname, n); |
|
840 |
pp->set_index(classpath_index); |
|
841 |
||
842 |
// Insert into hash table |
|
843 |
_package_hash_table->add_entry(pp); |
|
844 |
} |
|
845 |
return true; |
|
846 |
} |
|
847 |
} |
|
848 |
||
849 |
||
850 |
oop ClassLoader::get_system_package(const char* name, TRAPS) { |
|
851 |
PackageInfo* pp; |
|
852 |
{ |
|
853 |
MutexLocker ml(PackageTable_lock, THREAD); |
|
854 |
pp = lookup_package(name); |
|
855 |
} |
|
856 |
if (pp == NULL) { |
|
857 |
return NULL; |
|
858 |
} else { |
|
859 |
Handle p = java_lang_String::create_from_str(pp->filename(), THREAD); |
|
860 |
return p(); |
|
861 |
} |
|
862 |
} |
|
863 |
||
864 |
||
865 |
objArrayOop ClassLoader::get_system_packages(TRAPS) { |
|
866 |
ResourceMark rm(THREAD); |
|
867 |
int nof_entries; |
|
868 |
const char** packages; |
|
869 |
{ |
|
870 |
MutexLocker ml(PackageTable_lock, THREAD); |
|
871 |
// Allocate resource char* array containing package names |
|
872 |
nof_entries = _package_hash_table->number_of_entries(); |
|
873 |
if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) { |
|
874 |
return NULL; |
|
875 |
} |
|
876 |
_package_hash_table->copy_pkgnames(packages); |
|
877 |
} |
|
878 |
// Allocate objArray and fill with java.lang.String |
|
4571 | 879 |
objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(), |
1 | 880 |
nof_entries, CHECK_0); |
881 |
objArrayHandle result(THREAD, r); |
|
882 |
for (int i = 0; i < nof_entries; i++) { |
|
883 |
Handle str = java_lang_String::create_from_str(packages[i], CHECK_0); |
|
884 |
result->obj_at_put(i, str()); |
|
885 |
} |
|
886 |
||
887 |
return result(); |
|
888 |
} |
|
889 |
||
890 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7910
diff
changeset
|
891 |
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) { |
1 | 892 |
ResourceMark rm(THREAD); |
19158 | 893 |
EventMark m("loading class %s", h_name->as_C_string()); |
1 | 894 |
ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion); |
895 |
||
896 |
stringStream st; |
|
897 |
// st.print() uses too much stack space while handling a StackOverflowError |
|
898 |
// st.print("%s.class", h_name->as_utf8()); |
|
899 |
st.print_raw(h_name->as_utf8()); |
|
900 |
st.print_raw(".class"); |
|
901 |
char* name = st.as_string(); |
|
902 |
||
903 |
// Lookup stream for parsing .class file |
|
904 |
ClassFileStream* stream = NULL; |
|
905 |
int classpath_index = 0; |
|
906 |
{ |
|
3575
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
907 |
PerfClassTraceTime vmtimer(perf_sys_class_lookup_time(), |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
908 |
((JavaThread*) THREAD)->get_thread_stat()->perf_timers_addr(), |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
909 |
PerfClassTraceTime::CLASS_LOAD); |
1 | 910 |
ClassPathEntry* e = _first_entry; |
911 |
while (e != NULL) { |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
912 |
stream = e->open_stream(name, CHECK_NULL); |
1 | 913 |
if (stream != NULL) { |
914 |
break; |
|
915 |
} |
|
916 |
e = e->next(); |
|
917 |
++classpath_index; |
|
918 |
} |
|
919 |
} |
|
920 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
921 |
instanceKlassHandle h; |
1 | 922 |
if (stream != NULL) { |
923 |
||
924 |
// class file found, parse it |
|
925 |
ClassFileParser parser(stream); |
|
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
14471
diff
changeset
|
926 |
ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data(); |
1 | 927 |
Handle protection_domain; |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7910
diff
changeset
|
928 |
TempNewSymbol parsed_name = NULL; |
1 | 929 |
instanceKlassHandle result = parser.parseClassFile(h_name, |
14588
8ec26d2d9339
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
14471
diff
changeset
|
930 |
loader_data, |
1 | 931 |
protection_domain, |
932 |
parsed_name, |
|
3820
0a8fbbe180db
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
3582
diff
changeset
|
933 |
false, |
1 | 934 |
CHECK_(h)); |
935 |
||
936 |
// add to package table |
|
937 |
if (add_package(name, classpath_index, THREAD)) { |
|
938 |
h = result; |
|
939 |
} |
|
940 |
} |
|
941 |
||
942 |
return h; |
|
943 |
} |
|
944 |
||
945 |
||
13195 | 946 |
void ClassLoader::create_package_info_table(HashtableBucket<mtClass> *t, int length, |
1 | 947 |
int number_of_entries) { |
948 |
assert(_package_hash_table == NULL, "One package info table allowed."); |
|
13195 | 949 |
assert(length == package_hash_table_size * sizeof(HashtableBucket<mtClass>), |
1 | 950 |
"bad shared package info size."); |
951 |
_package_hash_table = new PackageHashtable(package_hash_table_size, t, |
|
952 |
number_of_entries); |
|
953 |
} |
|
954 |
||
955 |
||
956 |
void ClassLoader::create_package_info_table() { |
|
957 |
assert(_package_hash_table == NULL, "shouldn't have one yet"); |
|
958 |
_package_hash_table = new PackageHashtable(package_hash_table_size); |
|
959 |
} |
|
960 |
||
961 |
||
962 |
// Initialize the class loader's access to methods in libzip. Parse and |
|
963 |
// process the boot classpath into a list ClassPathEntry objects. Once |
|
964 |
// this list has been created, it must not change order (see class PackageInfo) |
|
965 |
// it can be appended to and is by jvmti and the kernel vm. |
|
966 |
||
967 |
void ClassLoader::initialize() { |
|
968 |
assert(_package_hash_table == NULL, "should have been initialized by now."); |
|
969 |
EXCEPTION_MARK; |
|
970 |
||
971 |
if (UsePerfData) { |
|
972 |
// jvmstat performance counters |
|
973 |
NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time"); |
|
974 |
NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime"); |
|
3575
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
975 |
NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self"); |
1 | 976 |
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
|
977 |
NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self"); |
1 | 978 |
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
|
979 |
NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self"); |
1 | 980 |
NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses"); |
981 |
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
|
982 |
NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses"); |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
983 |
|
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
984 |
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
|
985 |
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
|
986 |
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
|
987 |
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
|
988 |
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
|
989 |
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
|
990 |
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
|
991 |
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
|
992 |
NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses"); |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2567
diff
changeset
|
993 |
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
|
994 |
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
|
995 |
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
|
996 |
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
|
997 |
|
1 | 998 |
|
999 |
// The following performance counters are added for measuring the impact |
|
1000 |
// of the bug fix of 6365597. They are mainly focused on finding out |
|
1001 |
// the behavior of system & user-defined classloader lock, whether |
|
1002 |
// ClassLoader.loadClass/findClass is being called synchronized or not. |
|
1003 |
// Also two additional counters are created to see whether 'UnsyncloadClass' |
|
1004 |
// flag is being set or not and how many times load_instance_class call |
|
1005 |
// fails with linkageError etc. |
|
1006 |
NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS, |
|
1007 |
"systemLoaderLockContentionRate"); |
|
1008 |
NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS, |
|
1009 |
"nonSystemLoaderLockContentionRate"); |
|
1010 |
NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS, |
|
1011 |
"jvmFindLoadedClassNoLockCalls"); |
|
1012 |
NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS, |
|
1013 |
"jvmDefineClassNoLockCalls"); |
|
1014 |
||
1015 |
NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS, |
|
1016 |
"jniDefineClassNoLockCalls"); |
|
1017 |
||
1018 |
NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, |
|
1019 |
"unsafeDefineClassCalls"); |
|
1020 |
||
1021 |
NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet"); |
|
1022 |
NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS, |
|
1023 |
"loadInstanceClassFailRate"); |
|
1024 |
||
1025 |
// increment the isUnsyncloadClass counter if UnsyncloadClass is set. |
|
1026 |
if (UnsyncloadClass) { |
|
1027 |
_isUnsyncloadClass->inc(); |
|
1028 |
} |
|
1029 |
} |
|
1030 |
||
1031 |
// lookup zip library entry points |
|
1032 |
load_zip_library(); |
|
1033 |
// initialize search path |
|
1034 |
setup_bootstrap_search_path(); |
|
1035 |
if (LazyBootClassLoader) { |
|
1036 |
// set up meta index which makes boot classpath initialization lazier |
|
1037 |
setup_meta_index(); |
|
1038 |
} |
|
1039 |
} |
|
1040 |
||
1041 |
||
1042 |
jlong ClassLoader::classloader_time_ms() { |
|
1043 |
return UsePerfData ? |
|
1044 |
Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1; |
|
1045 |
} |
|
1046 |
||
1047 |
jlong ClassLoader::class_init_count() { |
|
1048 |
return UsePerfData ? _perf_classes_inited->get_value() : -1; |
|
1049 |
} |
|
1050 |
||
1051 |
jlong ClassLoader::class_init_time_ms() { |
|
1052 |
return UsePerfData ? |
|
1053 |
Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1; |
|
1054 |
} |
|
1055 |
||
1056 |
jlong ClassLoader::class_verify_time_ms() { |
|
1057 |
return UsePerfData ? |
|
1058 |
Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1; |
|
1059 |
} |
|
1060 |
||
1061 |
jlong ClassLoader::class_link_count() { |
|
1062 |
return UsePerfData ? _perf_classes_linked->get_value() : -1; |
|
1063 |
} |
|
1064 |
||
1065 |
jlong ClassLoader::class_link_time_ms() { |
|
1066 |
return UsePerfData ? |
|
1067 |
Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1; |
|
1068 |
} |
|
1069 |
||
1070 |
int ClassLoader::compute_Object_vtable() { |
|
1071 |
// hardwired for JDK1.2 -- would need to duplicate class file parsing |
|
1072 |
// code to determine actual value from file |
|
1073 |
// Would be value '11' if finals were in vtable |
|
1074 |
int JDK_1_2_Object_vtable_size = 5; |
|
1075 |
return JDK_1_2_Object_vtable_size * vtableEntry::size(); |
|
1076 |
} |
|
1077 |
||
1078 |
||
1079 |
void classLoader_init() { |
|
1080 |
ClassLoader::initialize(); |
|
1081 |
} |
|
1082 |
||
1083 |
||
1084 |
bool ClassLoader::get_canonical_path(char* orig, char* out, int len) { |
|
1085 |
assert(orig != NULL && out != NULL && len > 0, "bad arguments"); |
|
1086 |
if (CanonicalizeEntry != NULL) { |
|
1087 |
JNIEnv* env = JavaThread::current()->jni_environment(); |
|
7405
e6fc8d3926f8
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
7397
diff
changeset
|
1088 |
if ((CanonicalizeEntry)(env, os::native_path(orig), out, len) < 0) { |
1 | 1089 |
return false; |
1090 |
} |
|
1091 |
} else { |
|
1092 |
// On JDK 1.2.2 the Canonicalize does not exist, so just do nothing |
|
1093 |
strncpy(out, orig, len); |
|
1094 |
out[len - 1] = '\0'; |
|
1095 |
} |
|
1096 |
return true; |
|
1097 |
} |
|
1098 |
||
1099 |
#ifndef PRODUCT |
|
1100 |
||
1101 |
void ClassLoader::verify() { |
|
1102 |
_package_hash_table->verify(); |
|
1103 |
} |
|
1104 |
||
1105 |
||
1106 |
// CompileTheWorld |
|
1107 |
// |
|
1108 |
// Iterates over all class path entries and forces compilation of all methods |
|
1109 |
// in all classes found. Currently, only zip/jar archives are searched. |
|
1110 |
// |
|
1111 |
// The classes are loaded by the Java level bootstrap class loader, and the |
|
1112 |
// initializer is called. If DelayCompilationDuringStartup is true (default), |
|
1113 |
// the interpreter will run the initialization code. Note that forcing |
|
1114 |
// initialization in this way could potentially lead to initialization order |
|
1115 |
// problems, in which case we could just force the initialization bit to be set. |
|
1116 |
||
1117 |
||
1118 |
// We need to iterate over the contents of a zip/jar file, so we replicate the |
|
1119 |
// jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile, |
|
1120 |
// since jzfile already has a void* definition. |
|
1121 |
// |
|
1122 |
// Note that this is only used in debug mode. |
|
1123 |
// |
|
1124 |
// HotSpot integration note: |
|
1125 |
// Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build |
|
1126 |
||
1127 |
||
1128 |
// JDK 1.3 version |
|
1129 |
typedef struct real_jzentry13 { /* Zip file entry */ |
|
1130 |
char *name; /* entry name */ |
|
1131 |
jint time; /* modification time */ |
|
1132 |
jint size; /* size of uncompressed data */ |
|
1133 |
jint csize; /* size of compressed data (zero if uncompressed) */ |
|
1134 |
jint crc; /* crc of uncompressed data */ |
|
1135 |
char *comment; /* optional zip file comment */ |
|
1136 |
jbyte *extra; /* optional extra data */ |
|
1137 |
jint pos; /* position of LOC header (if negative) or data */ |
|
1138 |
} real_jzentry13; |
|
1139 |
||
1140 |
typedef struct real_jzfile13 { /* Zip file */ |
|
1141 |
char *name; /* zip file name */ |
|
1142 |
jint refs; /* number of active references */ |
|
1143 |
jint fd; /* open file descriptor */ |
|
1144 |
void *lock; /* read lock */ |
|
1145 |
char *comment; /* zip file comment */ |
|
1146 |
char *msg; /* zip error message */ |
|
1147 |
void *entries; /* array of hash cells */ |
|
1148 |
jint total; /* total number of entries */ |
|
1149 |
unsigned short *table; /* Hash chain heads: indexes into entries */ |
|
1150 |
jint tablelen; /* number of hash eads */ |
|
1151 |
real_jzfile13 *next; /* next zip file in search list */ |
|
1152 |
jzentry *cache; /* we cache the most recently freed jzentry */ |
|
1153 |
/* Information on metadata names in META-INF directory */ |
|
1154 |
char **metanames; /* array of meta names (may have null names) */ |
|
1155 |
jint metacount; /* number of slots in metanames array */ |
|
1156 |
/* If there are any per-entry comments, they are in the comments array */ |
|
1157 |
char **comments; |
|
1158 |
} real_jzfile13; |
|
1159 |
||
1160 |
// JDK 1.2 version |
|
1161 |
typedef struct real_jzentry12 { /* Zip file entry */ |
|
1162 |
char *name; /* entry name */ |
|
1163 |
jint time; /* modification time */ |
|
1164 |
jint size; /* size of uncompressed data */ |
|
1165 |
jint csize; /* size of compressed data (zero if uncompressed) */ |
|
1166 |
jint crc; /* crc of uncompressed data */ |
|
1167 |
char *comment; /* optional zip file comment */ |
|
1168 |
jbyte *extra; /* optional extra data */ |
|
1169 |
jint pos; /* position of LOC header (if negative) or data */ |
|
1170 |
struct real_jzentry12 *next; /* next entry in hash table */ |
|
1171 |
} real_jzentry12; |
|
1172 |
||
1173 |
typedef struct real_jzfile12 { /* Zip file */ |
|
1174 |
char *name; /* zip file name */ |
|
1175 |
jint refs; /* number of active references */ |
|
1176 |
jint fd; /* open file descriptor */ |
|
1177 |
void *lock; /* read lock */ |
|
1178 |
char *comment; /* zip file comment */ |
|
1179 |
char *msg; /* zip error message */ |
|
1180 |
real_jzentry12 *entries; /* array of zip entries */ |
|
1181 |
jint total; /* total number of entries */ |
|
1182 |
real_jzentry12 **table; /* hash table of entries */ |
|
1183 |
jint tablelen; /* number of buckets */ |
|
1184 |
jzfile *next; /* next zip file in search list */ |
|
1185 |
} real_jzfile12; |
|
1186 |
||
1187 |
||
1188 |
void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) { |
|
1189 |
// For now we only compile all methods in all classes in zip/jar files |
|
1190 |
tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir); |
|
1191 |
tty->cr(); |
|
1192 |
} |
|
1193 |
||
1194 |
||
1195 |
bool ClassPathDirEntry::is_rt_jar() { |
|
1196 |
return false; |
|
1197 |
} |
|
1198 |
||
1199 |
void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) { |
|
1200 |
if (JDK_Version::is_jdk12x_version()) { |
|
1201 |
compile_the_world12(loader, THREAD); |
|
1202 |
} else { |
|
1203 |
compile_the_world13(loader, THREAD); |
|
1204 |
} |
|
1205 |
if (HAS_PENDING_EXCEPTION) { |
|
1206 |
if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
|
1207 |
CLEAR_PENDING_EXCEPTION; |
|
1208 |
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
|
1209 |
tty->print_cr("Increase class metadata storage if a limit was set"); |
1 | 1210 |
} else { |
1211 |
tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n"); |
|
1212 |
} |
|
1213 |
} |
|
1214 |
} |
|
1215 |
||
1216 |
// Version that works for JDK 1.3.x |
|
1217 |
void ClassPathZipEntry::compile_the_world13(Handle loader, TRAPS) { |
|
1218 |
real_jzfile13* zip = (real_jzfile13*) _zip; |
|
1219 |
tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name); |
|
1220 |
tty->cr(); |
|
1221 |
// Iterate over all entries in zip file |
|
1222 |
for (int n = 0; ; n++) { |
|
1223 |
real_jzentry13 * ze = (real_jzentry13 *)((*GetNextEntry)(_zip, n)); |
|
1224 |
if (ze == NULL) break; |
|
1225 |
ClassLoader::compile_the_world_in(ze->name, loader, CHECK); |
|
1226 |
} |
|
1227 |
} |
|
1228 |
||
1229 |
||
1230 |
// Version that works for JDK 1.2.x |
|
1231 |
void ClassPathZipEntry::compile_the_world12(Handle loader, TRAPS) { |
|
1232 |
real_jzfile12* zip = (real_jzfile12*) _zip; |
|
1233 |
tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name); |
|
1234 |
tty->cr(); |
|
1235 |
// Iterate over all entries in zip file |
|
1236 |
for (int n = 0; ; n++) { |
|
1237 |
real_jzentry12 * ze = (real_jzentry12 *)((*GetNextEntry)(_zip, n)); |
|
1238 |
if (ze == NULL) break; |
|
1239 |
ClassLoader::compile_the_world_in(ze->name, loader, CHECK); |
|
1240 |
} |
|
1241 |
} |
|
1242 |
||
1243 |
bool ClassPathZipEntry::is_rt_jar() { |
|
1244 |
if (JDK_Version::is_jdk12x_version()) { |
|
1245 |
return is_rt_jar12(); |
|
1246 |
} else { |
|
1247 |
return is_rt_jar13(); |
|
1248 |
} |
|
1249 |
} |
|
1250 |
||
1251 |
// JDK 1.3 version |
|
1252 |
bool ClassPathZipEntry::is_rt_jar13() { |
|
1253 |
real_jzfile13* zip = (real_jzfile13*) _zip; |
|
1254 |
int len = (int)strlen(zip->name); |
|
1255 |
// Check whether zip name ends in "rt.jar" |
|
1256 |
// This will match other archives named rt.jar as well, but this is |
|
1257 |
// only used for debugging. |
|
1258 |
return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0); |
|
1259 |
} |
|
1260 |
||
1261 |
// JDK 1.2 version |
|
1262 |
bool ClassPathZipEntry::is_rt_jar12() { |
|
1263 |
real_jzfile12* zip = (real_jzfile12*) _zip; |
|
1264 |
int len = (int)strlen(zip->name); |
|
1265 |
// Check whether zip name ends in "rt.jar" |
|
1266 |
// This will match other archives named rt.jar as well, but this is |
|
1267 |
// only used for debugging. |
|
1268 |
return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0); |
|
1269 |
} |
|
1270 |
||
1271 |
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
|
1272 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1273 |
if (cpe != NULL) { |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1274 |
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
|
1275 |
} |
1 | 1276 |
} |
1277 |
||
1278 |
bool LazyClassPathEntry::is_rt_jar() { |
|
19685
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1279 |
Thread* THREAD = Thread::current(); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1280 |
ClassPathEntry* cpe = resolve_entry(THREAD); |
3df9b00b5d5f
8020675: invalid jar file in the bootclasspath could lead to jvm fatal error
ccheung
parents:
19158
diff
changeset
|
1281 |
return (cpe != NULL) ? cpe->is_jar_file() : false; |
1 | 1282 |
} |
1283 |
||
1284 |
void ClassLoader::compile_the_world() { |
|
1285 |
EXCEPTION_MARK; |
|
1286 |
HandleMark hm(THREAD); |
|
1287 |
ResourceMark rm(THREAD); |
|
1288 |
// Make sure we don't run with background compilation |
|
1289 |
BackgroundCompilation = false; |
|
1290 |
// Find bootstrap loader |
|
1291 |
Handle system_class_loader (THREAD, SystemDictionary::java_system_loader()); |
|
1292 |
// Iterate over all bootstrap class path entries |
|
1293 |
ClassPathEntry* e = _first_entry; |
|
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1294 |
jlong start = os::javaTimeMillis(); |
1 | 1295 |
while (e != NULL) { |
1296 |
// We stop at rt.jar, unless it is the first bootstrap path entry |
|
1297 |
if (e->is_rt_jar() && e != _first_entry) break; |
|
1298 |
e->compile_the_world(system_class_loader, CATCH); |
|
1299 |
e = e->next(); |
|
1300 |
} |
|
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1301 |
jlong end = os::javaTimeMillis(); |
24424
2658d7834c6e
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
22838
diff
changeset
|
1302 |
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
|
1303 |
_compile_the_world_class_counter, _compile_the_world_method_counter, (end - start)); |
1 | 1304 |
{ |
1305 |
// Print statistics as if before normal exit: |
|
1306 |
extern void print_statistics(); |
|
1307 |
print_statistics(); |
|
1308 |
} |
|
1309 |
vm_exit(0); |
|
1310 |
} |
|
1311 |
||
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1312 |
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
|
1313 |
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
|
1314 |
static int _codecache_sweep_counter = 0; |
1 | 1315 |
|
8327 | 1316 |
// Filter out all exceptions except OOMs |
1317 |
static void clear_pending_exception_if_not_oom(TRAPS) { |
|
1318 |
if (HAS_PENDING_EXCEPTION && |
|
1319 |
!PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
|
1320 |
CLEAR_PENDING_EXCEPTION; |
|
1321 |
} |
|
1322 |
// The CHECK at the caller will propagate the exception out |
|
1323 |
} |
|
1324 |
||
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
|
1325 |
/** |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1326 |
* 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
|
1327 |
* |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1328 |
* 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
|
1329 |
*/ |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1330 |
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
|
1331 |
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
|
1332 |
|
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1333 |
// 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
|
1334 |
// 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
|
1335 |
// 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
|
1336 |
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
|
1337 |
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
|
1338 |
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
|
1339 |
} |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1340 |
|
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1341 |
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
|
1342 |
} |
9f5ffba04ead
8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
twisti
parents:
19685
diff
changeset
|
1343 |
|
1 | 1344 |
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) { |
1345 |
int len = (int)strlen(name); |
|
1346 |
if (len > 6 && strcmp(".class", name + len - 6) == 0) { |
|
1347 |
// We have a .class file |
|
1348 |
char buffer[2048]; |
|
1349 |
strncpy(buffer, name, len - 6); |
|
1350 |
buffer[len-6] = 0; |
|
1351 |
// If the file has a period after removing .class, it's not really a |
|
1352 |
// valid class file. The class loader will check everything else. |
|
1353 |
if (strchr(buffer, '.') == NULL) { |
|
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1354 |
_compile_the_world_class_counter++; |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1355 |
if (_compile_the_world_class_counter > CompileTheWorldStopAt) return; |
2567 | 1356 |
|
1357 |
// Construct name without extension |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7910
diff
changeset
|
1358 |
TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK); |
2567 | 1359 |
// Use loader to load and initialize class |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1360 |
Klass* ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD); |
2567 | 1361 |
instanceKlassHandle k (THREAD, ik); |
1362 |
if (k.not_null() && !HAS_PENDING_EXCEPTION) { |
|
1363 |
k->initialize(THREAD); |
|
1364 |
} |
|
1365 |
bool exception_occurred = HAS_PENDING_EXCEPTION; |
|
8327 | 1366 |
clear_pending_exception_if_not_oom(CHECK); |
2567 | 1367 |
if (CompileTheWorldPreloadClasses && k.not_null()) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13195
diff
changeset
|
1368 |
ConstantPool::preload_and_initialize_all_classes(k->constants(), THREAD); |
2567 | 1369 |
if (HAS_PENDING_EXCEPTION) { |
1370 |
// If something went wrong in preloading we just ignore it |
|
8327 | 1371 |
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
|
1372 |
tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_class_counter, buffer); |
1 | 1373 |
} |
2567 | 1374 |
} |
1375 |
||
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1376 |
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
|
1377 |
if (k.is_null() || exception_occurred) { |
1 | 1378 |
// 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
|
1379 |
tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_class_counter, buffer); |
1 | 1380 |
} else { |
17004
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1381 |
tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_class_counter, buffer); |
1 | 1382 |
// Preload all classes to get around uncommon traps |
1383 |
// Iterate over all methods in class |
|
17126
42a942feeea2
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
17004
diff
changeset
|
1384 |
int comp_level = CompilationPolicy::policy()->initial_compile_level(); |
1 | 1385 |
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
|
1386 |
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
|
1387 |
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
|
1388 |
if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) { |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1389 |
// 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
|
1390 |
VM_ForceSafepoint op; |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1391 |
VMThread::execute(&op); |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1392 |
_codecache_sweep_counter = 0; |
e091227926da
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
4571
diff
changeset
|
1393 |
} |
1 | 1394 |
// Force compilation |
17126
42a942feeea2
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
17004
diff
changeset
|
1395 |
CompileBroker::compile_method(m, InvocationEntryBci, comp_level, |
1 | 1396 |
methodHandle(), 0, "CTW", THREAD); |
1397 |
if (HAS_PENDING_EXCEPTION) { |
|
8327 | 1398 |
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
|
1399 |
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
|
1400 |
} else { |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1401 |
_compile_the_world_method_counter++; |
1 | 1402 |
} |
10250
0794cd144834
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
8921
diff
changeset
|
1403 |
if (TieredCompilation && TieredStopAtLevel >= CompLevel_full_optimization) { |
2567 | 1404 |
// Clobber the first compile and force second tier compilation |
1405 |
nmethod* nm = m->code(); |
|
1406 |
if (nm != NULL) { |
|
1407 |
// Throw out the code so that the code cache doesn't fill up |
|
1408 |
nm->make_not_entrant(); |
|
1409 |
m->clear_code(); |
|
1410 |
} |
|
6453 | 1411 |
CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_full_optimization, |
2567 | 1412 |
methodHandle(), 0, "CTW", THREAD); |
1413 |
if (HAS_PENDING_EXCEPTION) { |
|
8327 | 1414 |
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
|
1415 |
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
|
1416 |
} else { |
4d2371d76a19
8011933: add number of classes, methods and time spent to CompileTheWorld
twisti
parents:
14588
diff
changeset
|
1417 |
_compile_the_world_method_counter++; |
2567 | 1418 |
} |
1 | 1419 |
} |
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
|
1420 |
} 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
|
1421 |
tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_class_counter, m->name_and_sig_as_C_string()); |
1 | 1422 |
} |
2567 | 1423 |
|
1424 |
nmethod* nm = m->code(); |
|
1425 |
if (nm != NULL) { |
|
1426 |
// Throw out the code so that the code cache doesn't fill up |
|
1427 |
nm->make_not_entrant(); |
|
1428 |
m->clear_code(); |
|
1 | 1429 |
} |
1430 |
} |
|
1431 |
} |
|
1432 |
} |
|
1433 |
} |
|
1434 |
} |
|
1435 |
} |
|
1436 |
||
1437 |
#endif //PRODUCT |
|
7910
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1438 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1439 |
// 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
|
1440 |
// 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
|
1441 |
void PerfClassTraceTime::initialize() { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1442 |
if (!UsePerfData) return; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1443 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1444 |
if (_eventp != NULL) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1445 |
// increment the event counter |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1446 |
_eventp->inc(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1447 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1448 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1449 |
// stop the current active thread-local timer to measure inclusive time |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1450 |
_prev_active_event = -1; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1451 |
for (int i=0; i < EVENT_TYPE_COUNT; i++) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1452 |
if (_timers[i].is_active()) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1453 |
assert(_prev_active_event == -1, "should have only one active timer"); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1454 |
_prev_active_event = i; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1455 |
_timers[i].stop(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1456 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1457 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1458 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1459 |
if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1460 |
// start the inclusive timer if not recursively called |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1461 |
_t.start(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1462 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1463 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1464 |
// start thread-local timer of the given event type |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1465 |
if (!_timers[_event_type].is_active()) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1466 |
_timers[_event_type].start(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1467 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1468 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1469 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1470 |
PerfClassTraceTime::~PerfClassTraceTime() { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1471 |
if (!UsePerfData) return; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1472 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1473 |
// stop the thread-local timer as the event completes |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1474 |
// 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
|
1475 |
_timers[_event_type].stop(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1476 |
jlong selftime = _timers[_event_type].ticks(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1477 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1478 |
if (_prev_active_event >= 0) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1479 |
_timers[_prev_active_event].start(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1480 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1481 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1482 |
if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return; |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1483 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1484 |
// increment the counters only on the leaf call |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1485 |
_t.stop(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1486 |
_timep->inc(_t.ticks()); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1487 |
if (_selftimep != NULL) { |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1488 |
_selftimep->inc(selftime); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1489 |
} |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1490 |
// 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
|
1491 |
ClassLoader::perf_accumulated_time()->inc(selftime); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1492 |
|
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1493 |
// reset the timer |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1494 |
_timers[_event_type].reset(); |
135031ddb2bb
6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents:
7405
diff
changeset
|
1495 |
} |