52 #include "logging/logTag.hpp"
53 #include "memory/allocation.inline.hpp"
54 #include "memory/oopFactory.hpp"
55 #include "memory/resourceArea.hpp"
56 #include "memory/universe.hpp"
57 #include "oops/instanceKlass.hpp"
58 #include "oops/instanceRefKlass.hpp"
59 #include "oops/klass.inline.hpp"
60 #include "oops/method.inline.hpp"
61 #include "oops/objArrayOop.inline.hpp"
62 #include "oops/oop.inline.hpp"
63 #include "oops/symbol.hpp"
64 #include "prims/jvm_misc.hpp"
65 #include "runtime/arguments.hpp"
66 #include "runtime/handles.inline.hpp"
67 #include "runtime/init.hpp"
68 #include "runtime/interfaceSupport.inline.hpp"
69 #include "runtime/java.hpp"
70 #include "runtime/javaCalls.hpp"
71 #include "runtime/os.hpp"
72 #include "runtime/perfData.hpp"
73 #include "runtime/timer.hpp"
74 #include "runtime/vm_version.hpp"
75 #include "services/management.hpp"
76 #include "services/threadService.hpp"
77 #include "utilities/checkedCast.hpp"
78 #include "utilities/classpathStream.hpp"
79 #include "utilities/events.hpp"
80 #include "utilities/macros.hpp"
81 #include "utilities/ostream.hpp"
82 #include "utilities/utf8.hpp"
83
84 #include <ctype.h>
85
86 // Entry point in java.dll for path canonicalization
87
88 typedef int (*canonicalize_fn_t)(const char *orig, char *out, int len);
89
90 static canonicalize_fn_t CanonicalizeEntry = nullptr;
91
92 // Entry points for jimage.dll for loading jimage file entries
93
94 static JImageOpen_t JImageOpen = nullptr;
95 static JImageClose_t JImageClose = nullptr;
96 static JImageFindResource_t JImageFindResource = nullptr;
97 static JImageGetResource_t JImageGetResource = nullptr;
98
99 // JimageFile pointer, or null if exploded JDK build.
100 static JImageFile* JImage_file = nullptr;
101
102 // Globals
103
104 PerfCounter* ClassLoader::_perf_accumulated_time = nullptr;
105 PerfCounter* ClassLoader::_perf_classes_inited = nullptr;
106 PerfCounter* ClassLoader::_perf_class_init_time = nullptr;
107 PerfCounter* ClassLoader::_perf_class_init_selftime = nullptr;
108 PerfCounter* ClassLoader::_perf_classes_verified = nullptr;
109 PerfCounter* ClassLoader::_perf_class_verify_time = nullptr;
110 PerfCounter* ClassLoader::_perf_class_verify_selftime = nullptr;
111 PerfCounter* ClassLoader::_perf_classes_linked = nullptr;
112 PerfCounter* ClassLoader::_perf_class_link_time = nullptr;
113 PerfCounter* ClassLoader::_perf_class_link_selftime = nullptr;
114 PerfCounter* ClassLoader::_perf_shared_classload_time = nullptr;
115 PerfCounter* ClassLoader::_perf_sys_classload_time = nullptr;
116 PerfCounter* ClassLoader::_perf_app_classload_time = nullptr;
117 PerfCounter* ClassLoader::_perf_app_classload_selftime = nullptr;
118 PerfCounter* ClassLoader::_perf_app_classload_count = nullptr;
119 PerfCounter* ClassLoader::_perf_define_appclasses = nullptr;
120 PerfCounter* ClassLoader::_perf_define_appclass_time = nullptr;
121 PerfCounter* ClassLoader::_perf_define_appclass_selftime = nullptr;
122 PerfCounter* ClassLoader::_perf_app_classfile_bytes_read = nullptr;
123 PerfCounter* ClassLoader::_perf_sys_classfile_bytes_read = nullptr;
124 PerfCounter* ClassLoader::_perf_ik_link_methods_time = nullptr;
125 PerfCounter* ClassLoader::_perf_method_adapters_time = nullptr;
126 PerfCounter* ClassLoader::_perf_ik_link_methods_count = nullptr;
127 PerfCounter* ClassLoader::_perf_method_adapters_count = nullptr;
128 PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = nullptr;
129 PerfCounter* ClassLoader::_perf_secondary_hash_time = nullptr;
130 PerfCounter* ClassLoader::_perf_change_wx_time = nullptr;
131
132 PerfCounter* ClassLoader::_perf_resolve_indy_time = nullptr;
133 PerfCounter* ClassLoader::_perf_resolve_invokehandle_time = nullptr;
134 PerfCounter* ClassLoader::_perf_resolve_mh_time = nullptr;
135 PerfCounter* ClassLoader::_perf_resolve_mt_time = nullptr;
136
137 PerfCounter* ClassLoader::_perf_resolve_indy_count = nullptr;
138 PerfCounter* ClassLoader::_perf_resolve_invokehandle_count = nullptr;
139 PerfCounter* ClassLoader::_perf_resolve_mh_count = nullptr;
140 PerfCounter* ClassLoader::_perf_resolve_mt_count = nullptr;
141
142 void ClassLoader::print_counters(outputStream *st) {
143 st->print_cr("ClassLoader:");
144 st->print_cr(" clinit: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", ClassLoader::class_init_time_ms(), ClassLoader::class_init_count());
145 st->print_cr(" link methods: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", Management::ticks_to_ms(_perf_ik_link_methods_time->get_value()) , _perf_ik_link_methods_count->get_value());
146 st->print_cr(" method adapters: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", Management::ticks_to_ms(_perf_method_adapters_time->get_value()) , _perf_method_adapters_count->get_value());
147 st->print_cr(" resolve...");
148 st->print_cr(" invokedynamic: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", Management::ticks_to_ms(_perf_resolve_indy_time->get_value()) , _perf_resolve_indy_count->get_value());
149 st->print_cr(" invokehandle: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", Management::ticks_to_ms(_perf_resolve_invokehandle_time->get_value()) , _perf_resolve_invokehandle_count->get_value());
150 st->print_cr(" CP_MethodHandle: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", Management::ticks_to_ms(_perf_resolve_mh_time->get_value()) , _perf_resolve_mh_count->get_value());
151 st->print_cr(" CP_MethodType: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", Management::ticks_to_ms(_perf_resolve_mt_time->get_value()) , _perf_resolve_mt_count->get_value());
152 st->cr();
153 }
154
155 GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = nullptr;
156 GrowableArray<ModuleClassPathList*>* ClassLoader::_exploded_entries = nullptr;
157 ClassPathEntry* ClassLoader::_jrt_entry = nullptr;
158
159 ClassPathEntry* volatile ClassLoader::_first_append_entry_list = nullptr;
160 ClassPathEntry* volatile ClassLoader::_last_append_entry = nullptr;
161
162 // helper routines
163 #if INCLUDE_CDS
164 static bool string_starts_with(const char* str, const char* str_to_find) {
165 size_t str_len = strlen(str);
166 size_t str_to_find_len = strlen(str_to_find);
167 if (str_to_find_len > str_len) {
168 return false;
169 }
170 return (strncmp(str, str_to_find, str_to_find_len) == 0);
171 }
172 #endif
1341 #endif // INCLUDE_CDS
1342
1343 // Initialize the class loader's access to methods in libzip. Parse and
1344 // process the boot classpath into a list ClassPathEntry objects. Once
1345 // this list has been created, it must not change order (see class PackageInfo)
1346 // it can be appended to and is by jvmti.
1347
1348 void ClassLoader::initialize(TRAPS) {
1349 if (UsePerfData) {
1350 // jvmstat performance counters
1351 NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
1352 NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime");
1353 NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1354 NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime");
1355 NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1356 NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime");
1357 NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1358 NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
1359 NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses");
1360 NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
1361
1362 NEWPERFTICKCOUNTER(_perf_shared_classload_time, SUN_CLS, "sharedClassLoadTime");
1363 NEWPERFTICKCOUNTER(_perf_sys_classload_time, SUN_CLS, "sysClassLoadTime");
1364 NEWPERFTICKCOUNTER(_perf_app_classload_time, SUN_CLS, "appClassLoadTime");
1365 NEWPERFTICKCOUNTER(_perf_app_classload_selftime, SUN_CLS, "appClassLoadTime.self");
1366 NEWPERFEVENTCOUNTER(_perf_app_classload_count, SUN_CLS, "appClassLoadCount");
1367 NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
1368 NEWPERFTICKCOUNTER(_perf_define_appclass_time, SUN_CLS, "defineAppClassTime");
1369 NEWPERFTICKCOUNTER(_perf_define_appclass_selftime, SUN_CLS, "defineAppClassTime.self");
1370 NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
1371 NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
1372 NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, "unsafeDefineClassCalls");
1373 NEWPERFTICKCOUNTER(_perf_secondary_hash_time, SUN_CLS, "secondarySuperHashTime");
1374 NEWPERFTICKCOUNTER(_perf_change_wx_time, SUN_CLS, "changeWXTime");
1375
1376 if (log_is_enabled(Info, perf, class, link)) {
1377 NEWPERFTICKCOUNTER(_perf_ik_link_methods_time, SUN_CLS, "linkMethodsTime");
1378 NEWPERFTICKCOUNTER(_perf_method_adapters_time, SUN_CLS, "makeAdaptersTime");
1379 NEWPERFEVENTCOUNTER(_perf_ik_link_methods_count, SUN_CLS, "linkMethodsCount");
1380 NEWPERFEVENTCOUNTER(_perf_method_adapters_count, SUN_CLS, "makeAdaptersCount");
1381
1382 NEWPERFTICKCOUNTER(_perf_resolve_indy_time, SUN_CLS, "resolve_invokedynamic_time");
1383 NEWPERFTICKCOUNTER(_perf_resolve_invokehandle_time, SUN_CLS, "resolve_invokehandle_time");
1384 NEWPERFTICKCOUNTER(_perf_resolve_mh_time, SUN_CLS, "resolve_MethodHandle_time");
1385 NEWPERFTICKCOUNTER(_perf_resolve_mt_time, SUN_CLS, "resolve_MethodType_time");
1386
1387 NEWPERFEVENTCOUNTER(_perf_resolve_indy_count, SUN_CLS, "resolve_invokedynamic_count");
1388 NEWPERFEVENTCOUNTER(_perf_resolve_invokehandle_count, SUN_CLS, "resolve_invokehandle_count");
1389 NEWPERFEVENTCOUNTER(_perf_resolve_mh_count, SUN_CLS, "resolve_MethodHandle_count");
1390 NEWPERFEVENTCOUNTER(_perf_resolve_mt_count, SUN_CLS, "resolve_MethodType_count");
1391 }
1392 }
1393
1394 // lookup java library entry points
1395 load_java_library();
1396 // jimage library entry points are loaded below, in lookup_vm_options
1397 setup_bootstrap_search_path(THREAD);
1398 }
1399
1400 static char* lookup_vm_resource(JImageFile *jimage, const char *jimage_version, const char *path) {
1401 jlong size;
1402 JImageLocationRef location = (*JImageFindResource)(jimage, "java.base", jimage_version, path, &size);
1403 if (location == 0)
1404 return nullptr;
1405 char *val = NEW_C_HEAP_ARRAY(char, size+1, mtClass);
1434
1435 bool ClassLoader::is_module_observable(const char* module_name) {
1436 assert(JImageOpen != nullptr, "jimage library should have been opened");
1437 if (JImage_file == nullptr) {
1438 struct stat st;
1439 const char *path = get_exploded_module_path(module_name, true);
1440 bool res = os::stat(path, &st) == 0;
1441 FREE_C_HEAP_ARRAY(char, path);
1442 return res;
1443 }
1444 jlong size;
1445 const char *jimage_version = get_jimage_version_string();
1446 return (*JImageFindResource)(JImage_file, module_name, jimage_version, "module-info.class", &size) != 0;
1447 }
1448
1449 jlong ClassLoader::classloader_time_ms() {
1450 return UsePerfData ?
1451 Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
1452 }
1453
1454 jlong ClassLoader::class_init_count() {
1455 return UsePerfData ? _perf_classes_inited->get_value() : -1;
1456 }
1457
1458 jlong ClassLoader::class_init_time_ms() {
1459 return UsePerfData ?
1460 Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
1461 }
1462
1463 jlong ClassLoader::class_verify_time_ms() {
1464 return UsePerfData ?
1465 Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
1466 }
1467
1468 jlong ClassLoader::class_link_count() {
1469 return UsePerfData ? _perf_classes_linked->get_value() : -1;
1470 }
1471
1472 jlong ClassLoader::class_link_time_ms() {
1473 return UsePerfData ?
|
52 #include "logging/logTag.hpp"
53 #include "memory/allocation.inline.hpp"
54 #include "memory/oopFactory.hpp"
55 #include "memory/resourceArea.hpp"
56 #include "memory/universe.hpp"
57 #include "oops/instanceKlass.hpp"
58 #include "oops/instanceRefKlass.hpp"
59 #include "oops/klass.inline.hpp"
60 #include "oops/method.inline.hpp"
61 #include "oops/objArrayOop.inline.hpp"
62 #include "oops/oop.inline.hpp"
63 #include "oops/symbol.hpp"
64 #include "prims/jvm_misc.hpp"
65 #include "runtime/arguments.hpp"
66 #include "runtime/handles.inline.hpp"
67 #include "runtime/init.hpp"
68 #include "runtime/interfaceSupport.inline.hpp"
69 #include "runtime/java.hpp"
70 #include "runtime/javaCalls.hpp"
71 #include "runtime/os.hpp"
72 #include "runtime/perfData.inline.hpp"
73 #include "runtime/timer.hpp"
74 #include "runtime/vm_version.hpp"
75 #include "services/management.hpp"
76 #include "services/threadService.hpp"
77 #include "utilities/checkedCast.hpp"
78 #include "utilities/classpathStream.hpp"
79 #include "utilities/events.hpp"
80 #include "utilities/macros.hpp"
81 #include "utilities/ostream.hpp"
82 #include "utilities/utf8.hpp"
83
84 #include <ctype.h>
85
86 // Entry point in java.dll for path canonicalization
87
88 typedef int (*canonicalize_fn_t)(const char *orig, char *out, int len);
89
90 static canonicalize_fn_t CanonicalizeEntry = nullptr;
91
92 // Entry points for jimage.dll for loading jimage file entries
93
94 static JImageOpen_t JImageOpen = nullptr;
95 static JImageClose_t JImageClose = nullptr;
96 static JImageFindResource_t JImageFindResource = nullptr;
97 static JImageGetResource_t JImageGetResource = nullptr;
98
99 // JimageFile pointer, or null if exploded JDK build.
100 static JImageFile* JImage_file = nullptr;
101
102 // Globals
103
104 PerfCounter* ClassLoader::_perf_accumulated_time = nullptr;
105 PerfCounter* ClassLoader::_perf_classes_inited = nullptr;
106 PerfCounter* ClassLoader::_perf_class_init_time = nullptr;
107 PerfCounter* ClassLoader::_perf_class_init_selftime = nullptr;
108 PerfCounter* ClassLoader::_perf_class_init_bytecodes_count = nullptr;
109 PerfCounter* ClassLoader::_perf_classes_verified = nullptr;
110 PerfCounter* ClassLoader::_perf_class_verify_time = nullptr;
111 PerfCounter* ClassLoader::_perf_class_verify_selftime = nullptr;
112 PerfCounter* ClassLoader::_perf_classes_linked = nullptr;
113 PerfCounter* ClassLoader::_perf_class_link_time = nullptr;
114 PerfCounter* ClassLoader::_perf_class_link_selftime = nullptr;
115 PerfCounter* ClassLoader::_perf_shared_classload_time = nullptr;
116 PerfCounter* ClassLoader::_perf_sys_classload_time = nullptr;
117 PerfCounter* ClassLoader::_perf_app_classload_time = nullptr;
118 PerfCounter* ClassLoader::_perf_app_classload_selftime = nullptr;
119 PerfCounter* ClassLoader::_perf_app_classload_count = nullptr;
120 PerfCounter* ClassLoader::_perf_define_appclasses = nullptr;
121 PerfCounter* ClassLoader::_perf_define_appclass_time = nullptr;
122 PerfCounter* ClassLoader::_perf_define_appclass_selftime = nullptr;
123 PerfCounter* ClassLoader::_perf_app_classfile_bytes_read = nullptr;
124 PerfCounter* ClassLoader::_perf_sys_classfile_bytes_read = nullptr;
125 PerfCounter* ClassLoader::_perf_preload_total_time = nullptr;
126 PerfCounter* ClassLoader::_perf_preload_time = nullptr;
127 PerfCounter* ClassLoader::_perf_prelink_time = nullptr;
128 PerfCounter* ClassLoader::_perf_preinit_time = nullptr;
129 PerfCounter* ClassLoader::_perf_preresolve_time = nullptr;
130 PerfCounter* ClassLoader::_perf_ik_link_methods_time = nullptr;
131 PerfCounter* ClassLoader::_perf_method_adapters_time = nullptr;
132 PerfCounter* ClassLoader::_perf_ik_link_methods_count = nullptr;
133 PerfCounter* ClassLoader::_perf_method_adapters_count = nullptr;
134 PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = nullptr;
135 PerfCounter* ClassLoader::_perf_secondary_hash_time = nullptr;
136 PerfCounter* ClassLoader::_perf_change_wx_time = nullptr;
137
138 PerfTickCounters* ClassLoader::_perf_resolve_indy_time = nullptr;
139 PerfTickCounters* ClassLoader::_perf_resolve_invokehandle_time = nullptr;
140 PerfTickCounters* ClassLoader::_perf_resolve_mh_time = nullptr;
141 PerfTickCounters* ClassLoader::_perf_resolve_mt_time = nullptr;
142
143 PerfCounter* ClassLoader::_perf_resolve_indy_count = nullptr;
144 PerfCounter* ClassLoader::_perf_resolve_invokehandle_count = nullptr;
145 PerfCounter* ClassLoader::_perf_resolve_mh_count = nullptr;
146 PerfCounter* ClassLoader::_perf_resolve_mt_count = nullptr;
147
148 void ClassLoader::print_counters(outputStream *st) {
149 st->print_cr("ClassLoader:");
150 st->print_cr( " clinit: " JLONG_FORMAT_W(6) "us / " JLONG_FORMAT " events",
151 ClassLoader::class_init_time_ms(), ClassLoader::class_init_count());
152 st->print_cr(" link methods: " JLONG_FORMAT_W(6) "us / " JLONG_FORMAT " events",
153 Management::ticks_to_us(_perf_ik_link_methods_time->get_value()) , _perf_ik_link_methods_count->get_value());
154 st->print_cr(" method adapters: " JLONG_FORMAT_W(6) "us / " JLONG_FORMAT " events",
155 Management::ticks_to_us(_perf_method_adapters_time->get_value()) , _perf_method_adapters_count->get_value());
156 if (CountBytecodes || CountBytecodesPerThread) {
157 st->print_cr("; executed " JLONG_FORMAT " bytecodes", ClassLoader::class_init_bytecodes_count());
158 }
159 st->print_cr(" resolve...");
160 st->print_cr(" invokedynamic: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
161 _perf_resolve_indy_time->elapsed_counter_value_us(),
162 _perf_resolve_indy_time->thread_counter_value_us(),
163 _perf_resolve_indy_count->get_value());
164 st->print_cr(" invokehandle: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
165 _perf_resolve_invokehandle_time->elapsed_counter_value_us(),
166 _perf_resolve_invokehandle_time->thread_counter_value_us(),
167 _perf_resolve_invokehandle_count->get_value());
168 st->print_cr(" CP_MethodHandle: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
169 _perf_resolve_mh_time->elapsed_counter_value_us(),
170 _perf_resolve_mh_time->thread_counter_value_us(),
171 _perf_resolve_mh_count->get_value());
172 st->print_cr(" CP_MethodType: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
173 _perf_resolve_mt_time->elapsed_counter_value_us(),
174 _perf_resolve_mt_time->thread_counter_value_us(),
175 _perf_resolve_mt_count->get_value());
176 }
177
178 GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = nullptr;
179 GrowableArray<ModuleClassPathList*>* ClassLoader::_exploded_entries = nullptr;
180 ClassPathEntry* ClassLoader::_jrt_entry = nullptr;
181
182 ClassPathEntry* volatile ClassLoader::_first_append_entry_list = nullptr;
183 ClassPathEntry* volatile ClassLoader::_last_append_entry = nullptr;
184
185 // helper routines
186 #if INCLUDE_CDS
187 static bool string_starts_with(const char* str, const char* str_to_find) {
188 size_t str_len = strlen(str);
189 size_t str_to_find_len = strlen(str_to_find);
190 if (str_to_find_len > str_len) {
191 return false;
192 }
193 return (strncmp(str, str_to_find, str_to_find_len) == 0);
194 }
195 #endif
1364 #endif // INCLUDE_CDS
1365
1366 // Initialize the class loader's access to methods in libzip. Parse and
1367 // process the boot classpath into a list ClassPathEntry objects. Once
1368 // this list has been created, it must not change order (see class PackageInfo)
1369 // it can be appended to and is by jvmti.
1370
1371 void ClassLoader::initialize(TRAPS) {
1372 if (UsePerfData) {
1373 // jvmstat performance counters
1374 NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
1375 NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime");
1376 NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1377 NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime");
1378 NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1379 NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime");
1380 NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1381 NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
1382 NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses");
1383 NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
1384 NEWPERFEVENTCOUNTER(_perf_class_init_bytecodes_count, SUN_CLS, "clinitBytecodesCount");
1385
1386 NEWPERFTICKCOUNTER(_perf_shared_classload_time, SUN_CLS, "sharedClassLoadTime");
1387 NEWPERFTICKCOUNTER(_perf_sys_classload_time, SUN_CLS, "sysClassLoadTime");
1388 NEWPERFTICKCOUNTER(_perf_app_classload_time, SUN_CLS, "appClassLoadTime");
1389 NEWPERFTICKCOUNTER(_perf_app_classload_selftime, SUN_CLS, "appClassLoadTime.self");
1390 NEWPERFEVENTCOUNTER(_perf_app_classload_count, SUN_CLS, "appClassLoadCount");
1391 NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
1392 NEWPERFTICKCOUNTER(_perf_define_appclass_time, SUN_CLS, "defineAppClassTime");
1393 NEWPERFTICKCOUNTER(_perf_define_appclass_selftime, SUN_CLS, "defineAppClassTime.self");
1394 NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
1395 NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
1396 NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, "unsafeDefineClassCalls");
1397 NEWPERFTICKCOUNTER(_perf_secondary_hash_time, SUN_CLS, "secondarySuperHashTime");
1398 NEWPERFTICKCOUNTER(_perf_change_wx_time, SUN_CLS, "changeWXTime");
1399
1400 if (log_is_enabled(Info, perf, class, link) || log_is_enabled(Info, init)) {
1401 NEWPERFTICKCOUNTER(_perf_preload_total_time, SUN_CLS, "preloadTotalTime");
1402 NEWPERFTICKCOUNTER(_perf_preload_time, SUN_CLS, "preloadTime");
1403 NEWPERFTICKCOUNTER(_perf_prelink_time, SUN_CLS, "prelinkTime");
1404 NEWPERFTICKCOUNTER(_perf_preinit_time, SUN_CLS, "preinitTime");
1405 NEWPERFTICKCOUNTER(_perf_preresolve_time, SUN_CLS, "preresolveTime");
1406
1407 NEWPERFTICKCOUNTER(_perf_ik_link_methods_time, SUN_CLS, "linkMethodsTime");
1408 NEWPERFTICKCOUNTER(_perf_method_adapters_time, SUN_CLS, "makeAdaptersTime");
1409 NEWPERFEVENTCOUNTER(_perf_ik_link_methods_count, SUN_CLS, "linkMethodsCount");
1410 NEWPERFEVENTCOUNTER(_perf_method_adapters_count, SUN_CLS, "makeAdaptersCount");
1411
1412 NEWPERFTICKCOUNTERS(_perf_resolve_indy_time, SUN_CLS, "resolve_invokedynamic_time");
1413 NEWPERFTICKCOUNTERS(_perf_resolve_invokehandle_time, SUN_CLS, "resolve_invokehandle_time");
1414 NEWPERFTICKCOUNTERS(_perf_resolve_mh_time, SUN_CLS, "resolve_MethodHandle_time");
1415 NEWPERFTICKCOUNTERS(_perf_resolve_mt_time, SUN_CLS, "resolve_MethodType_time");
1416
1417 NEWPERFEVENTCOUNTER(_perf_resolve_indy_count, SUN_CLS, "resolve_invokedynamic_count");
1418 NEWPERFEVENTCOUNTER(_perf_resolve_invokehandle_count, SUN_CLS, "resolve_invokehandle_count");
1419 NEWPERFEVENTCOUNTER(_perf_resolve_mh_count, SUN_CLS, "resolve_MethodHandle_count");
1420 NEWPERFEVENTCOUNTER(_perf_resolve_mt_count, SUN_CLS, "resolve_MethodType_count");
1421 }
1422 }
1423
1424 // lookup java library entry points
1425 load_java_library();
1426 // jimage library entry points are loaded below, in lookup_vm_options
1427 setup_bootstrap_search_path(THREAD);
1428 }
1429
1430 static char* lookup_vm_resource(JImageFile *jimage, const char *jimage_version, const char *path) {
1431 jlong size;
1432 JImageLocationRef location = (*JImageFindResource)(jimage, "java.base", jimage_version, path, &size);
1433 if (location == 0)
1434 return nullptr;
1435 char *val = NEW_C_HEAP_ARRAY(char, size+1, mtClass);
1464
1465 bool ClassLoader::is_module_observable(const char* module_name) {
1466 assert(JImageOpen != nullptr, "jimage library should have been opened");
1467 if (JImage_file == nullptr) {
1468 struct stat st;
1469 const char *path = get_exploded_module_path(module_name, true);
1470 bool res = os::stat(path, &st) == 0;
1471 FREE_C_HEAP_ARRAY(char, path);
1472 return res;
1473 }
1474 jlong size;
1475 const char *jimage_version = get_jimage_version_string();
1476 return (*JImageFindResource)(JImage_file, module_name, jimage_version, "module-info.class", &size) != 0;
1477 }
1478
1479 jlong ClassLoader::classloader_time_ms() {
1480 return UsePerfData ?
1481 Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
1482 }
1483
1484 jlong ClassLoader::class_init_bytecodes_count() {
1485 return UsePerfData ? _perf_class_init_bytecodes_count->get_value() : -1;
1486 }
1487
1488 jlong ClassLoader::class_init_count() {
1489 return UsePerfData ? _perf_classes_inited->get_value() : -1;
1490 }
1491
1492 jlong ClassLoader::class_init_time_ms() {
1493 return UsePerfData ?
1494 Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
1495 }
1496
1497 jlong ClassLoader::class_verify_time_ms() {
1498 return UsePerfData ?
1499 Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
1500 }
1501
1502 jlong ClassLoader::class_link_count() {
1503 return UsePerfData ? _perf_classes_linked->get_value() : -1;
1504 }
1505
1506 jlong ClassLoader::class_link_time_ms() {
1507 return UsePerfData ?
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