13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/classFileParser.hpp" 27 #include "classfile/classFileStream.hpp" 28 #include "classfile/classListParser.hpp" 29 #include "classfile/classLoader.inline.hpp" 30 #include "classfile/classLoaderExt.hpp" 31 #include "classfile/classLoaderData.inline.hpp" 32 #include "classfile/klassFactory.hpp" 33 #include "classfile/sharedClassUtil.hpp" 34 #include "classfile/sharedPathsMiscInfo.hpp" 35 #include "classfile/systemDictionaryShared.hpp" 36 #include "classfile/vmSymbols.hpp" 37 #include "memory/allocation.inline.hpp" 38 #include "memory/filemap.hpp" 39 #include "memory/resourceArea.hpp" 40 #include "oops/instanceKlass.hpp" 41 #include "oops/oop.inline.hpp" 42 #include "oops/symbol.hpp" 43 #include "runtime/arguments.hpp" 44 #include "runtime/java.hpp" 45 #include "runtime/javaCalls.hpp" 46 #include "runtime/os.hpp" 47 #include "services/threadService.hpp" 48 #include "utilities/stringUtils.hpp" 49 50 jshort ClassLoaderExt::_app_paths_start_index = ClassLoaderExt::max_classpath_index; 51 bool ClassLoaderExt::_has_app_classes = false; 52 bool ClassLoaderExt::_has_platform_classes = false; 53 54 void ClassLoaderExt::setup_app_search_path() { 55 assert(DumpSharedSpaces, "this function is only used with -Xshare:dump and -XX:+UseAppCDS"); 56 _app_paths_start_index = ClassLoader::num_boot_classpath_entries(); 57 char* app_class_path = os::strdup(Arguments::get_appclasspath()); 58 59 if (strcmp(app_class_path, ".") == 0) { 60 // This doesn't make any sense, even for AppCDS, so let's skip it. We 61 // don't want to throw an error here because -cp "." is usually assigned 62 // by the launcher when classpath is not specified. 63 trace_class_path("app loader class path (skipped)=", app_class_path); 64 } else { 65 trace_class_path("app loader class path=", app_class_path); 66 shared_paths_misc_info()->add_app_classpath(app_class_path); 67 ClassLoader::setup_app_search_path(app_class_path); 68 } 69 } 70 71 char* ClassLoaderExt::read_manifest(ClassPathEntry* entry, jint *manifest_size, bool clean_text, TRAPS) { 72 const char* name = "META-INF/MANIFEST.MF"; 73 char* manifest; 74 jint size; 75 76 assert(entry->is_jar_file(), "must be"); 77 manifest = (char*) ((ClassPathZipEntry*)entry )->open_entry(name, &size, true, CHECK_NULL); 78 79 if (manifest == NULL) { // No Manifest 80 *manifest_size = 0; 81 return NULL; 82 } 83 84 85 if (clean_text) { 86 // See http://docs.oracle.com/javase/6/docs/technotes/guides/jar/jar.html#JAR%20Manifest 87 // (1): replace all CR/LF and CR with LF 88 StringUtils::replace_no_expand(manifest, "\r\n", "\n"); 89 90 // (2) remove all new-line continuation (remove all "\n " substrings) 175 int name_len = (int)strlen(file_start); 176 if (name_len > 0) { 177 ResourceMark rm(THREAD); 178 char* libname = NEW_RESOURCE_ARRAY(char, dir_len + name_len + 1); 179 *libname = 0; 180 strncat(libname, dir_name, dir_len); 181 strncat(libname, file_start, name_len); 182 trace_class_path("library = ", libname); 183 ClassLoader::update_class_path_entry_list(libname, true, false); 184 } 185 186 file_start = file_end; 187 } 188 } 189 } 190 191 void ClassLoaderExt::setup_search_paths() { 192 if (UseAppCDS) { 193 shared_paths_misc_info()->record_app_offset(); 194 ClassLoaderExt::setup_app_search_path(); 195 } 196 } 197 198 Thread* ClassLoaderExt::Context::_dump_thread = NULL; 199 200 void ClassLoaderExt::record_result(ClassLoaderExt::Context *context, 201 Symbol* class_name, 202 const s2 classpath_index, 203 InstanceKlass* result, 204 TRAPS) { 205 assert(DumpSharedSpaces, "Sanity"); 206 207 // We need to remember where the class comes from during dumping. 208 oop loader = result->class_loader(); 209 s2 classloader_type = ClassLoader::BOOT_LOADER; 210 if (SystemDictionary::is_system_class_loader(loader)) { 211 classloader_type = ClassLoader::APP_LOADER; 212 ClassLoaderExt::set_has_app_classes(); 213 } else if (SystemDictionary::is_platform_class_loader(loader)) { 214 classloader_type = ClassLoader::PLATFORM_LOADER; | 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/classFileParser.hpp" 27 #include "classfile/classFileStream.hpp" 28 #include "classfile/classListParser.hpp" 29 #include "classfile/classLoader.inline.hpp" 30 #include "classfile/classLoaderExt.hpp" 31 #include "classfile/classLoaderData.inline.hpp" 32 #include "classfile/klassFactory.hpp" 33 #include "classfile/modules.hpp" 34 #include "classfile/sharedClassUtil.hpp" 35 #include "classfile/sharedPathsMiscInfo.hpp" 36 #include "classfile/systemDictionaryShared.hpp" 37 #include "classfile/vmSymbols.hpp" 38 #include "memory/allocation.inline.hpp" 39 #include "memory/filemap.hpp" 40 #include "memory/resourceArea.hpp" 41 #include "oops/instanceKlass.hpp" 42 #include "oops/oop.inline.hpp" 43 #include "oops/symbol.hpp" 44 #include "runtime/arguments.hpp" 45 #include "runtime/handles.inline.hpp" 46 #include "runtime/java.hpp" 47 #include "runtime/javaCalls.hpp" 48 #include "runtime/os.hpp" 49 #include "services/threadService.hpp" 50 #include "utilities/stringUtils.hpp" 51 52 jshort ClassLoaderExt::_app_class_paths_start_index = ClassLoaderExt::max_classpath_index; 53 jshort ClassLoaderExt::_app_module_paths_start_index = ClassLoaderExt::max_classpath_index; 54 bool ClassLoaderExt::_has_app_classes = false; 55 bool ClassLoaderExt::_has_platform_classes = false; 56 57 void ClassLoaderExt::setup_app_search_path() { 58 assert(DumpSharedSpaces, "this function is only used with -Xshare:dump and -XX:+UseAppCDS"); 59 _app_class_paths_start_index = ClassLoader::num_boot_classpath_entries(); 60 char* app_class_path = os::strdup(Arguments::get_appclasspath()); 61 62 if (strcmp(app_class_path, ".") == 0) { 63 // This doesn't make any sense, even for AppCDS, so let's skip it. We 64 // don't want to throw an error here because -cp "." is usually assigned 65 // by the launcher when classpath is not specified. 66 trace_class_path("app loader class path (skipped)=", app_class_path); 67 } else { 68 trace_class_path("app loader class path=", app_class_path); 69 shared_paths_misc_info()->add_app_classpath(app_class_path); 70 ClassLoader::setup_app_search_path(app_class_path); 71 } 72 } 73 74 void ClassLoaderExt::process_module_table(ModuleEntryTable* met, TRAPS) { 75 ResourceMark rm; 76 for (int i = 0; i < met->table_size(); i++) { 77 for (ModuleEntry* m = met->bucket(i); m != NULL;) { 78 char* path = m->location()->as_C_string(); 79 if (strncmp(path, "file:", 5) == 0 && ClassLoader::string_ends_with(path, ".jar")) { 80 m->print(); 81 path = ClassLoader::skip_uri_protocol(path); 82 ClassLoader::setup_module_search_path(path, THREAD); 83 } 84 m = m->next(); 85 } 86 } 87 } 88 void ClassLoaderExt::setup_module_search_path(TRAPS) { 89 assert(DumpSharedSpaces, "this function is only used with -Xshare:dump and -XX:+UseAppCDS"); 90 _app_module_paths_start_index = ClassLoader::num_boot_classpath_entries() + 91 ClassLoader::num_app_classpath_entries(); 92 Handle system_class_loader (THREAD, SystemDictionary::java_system_loader()); 93 ModuleEntryTable* met = Modules::get_module_entry_table(system_class_loader); 94 process_module_table(met, THREAD); 95 } 96 97 char* ClassLoaderExt::read_manifest(ClassPathEntry* entry, jint *manifest_size, bool clean_text, TRAPS) { 98 const char* name = "META-INF/MANIFEST.MF"; 99 char* manifest; 100 jint size; 101 102 assert(entry->is_jar_file(), "must be"); 103 manifest = (char*) ((ClassPathZipEntry*)entry )->open_entry(name, &size, true, CHECK_NULL); 104 105 if (manifest == NULL) { // No Manifest 106 *manifest_size = 0; 107 return NULL; 108 } 109 110 111 if (clean_text) { 112 // See http://docs.oracle.com/javase/6/docs/technotes/guides/jar/jar.html#JAR%20Manifest 113 // (1): replace all CR/LF and CR with LF 114 StringUtils::replace_no_expand(manifest, "\r\n", "\n"); 115 116 // (2) remove all new-line continuation (remove all "\n " substrings) 201 int name_len = (int)strlen(file_start); 202 if (name_len > 0) { 203 ResourceMark rm(THREAD); 204 char* libname = NEW_RESOURCE_ARRAY(char, dir_len + name_len + 1); 205 *libname = 0; 206 strncat(libname, dir_name, dir_len); 207 strncat(libname, file_start, name_len); 208 trace_class_path("library = ", libname); 209 ClassLoader::update_class_path_entry_list(libname, true, false); 210 } 211 212 file_start = file_end; 213 } 214 } 215 } 216 217 void ClassLoaderExt::setup_search_paths() { 218 if (UseAppCDS) { 219 shared_paths_misc_info()->record_app_offset(); 220 ClassLoaderExt::setup_app_search_path(); 221 } 222 } 223 224 void ClassLoaderExt::setup_module_paths(TRAPS) { 225 if (UseAppCDS) { 226 ClassLoaderExt::setup_module_search_path(THREAD); 227 } 228 } 229 230 Thread* ClassLoaderExt::Context::_dump_thread = NULL; 231 232 void ClassLoaderExt::record_result(ClassLoaderExt::Context *context, 233 Symbol* class_name, 234 const s2 classpath_index, 235 InstanceKlass* result, 236 TRAPS) { 237 assert(DumpSharedSpaces, "Sanity"); 238 239 // We need to remember where the class comes from during dumping. 240 oop loader = result->class_loader(); 241 s2 classloader_type = ClassLoader::BOOT_LOADER; 242 if (SystemDictionary::is_system_class_loader(loader)) { 243 classloader_type = ClassLoader::APP_LOADER; 244 ClassLoaderExt::set_has_app_classes(); 245 } else if (SystemDictionary::is_platform_class_loader(loader)) { 246 classloader_type = ClassLoader::PLATFORM_LOADER; |