51 #include "logging/logTag.hpp"
52 #include "memory/allocation.inline.hpp"
53 #include "memory/oopFactory.hpp"
54 #include "memory/resourceArea.hpp"
55 #include "memory/universe.hpp"
56 #include "oops/instanceKlass.hpp"
57 #include "oops/instanceRefKlass.hpp"
58 #include "oops/klass.inline.hpp"
59 #include "oops/method.inline.hpp"
60 #include "oops/objArrayOop.inline.hpp"
61 #include "oops/oop.inline.hpp"
62 #include "oops/symbol.hpp"
63 #include "prims/jvm_misc.hpp"
64 #include "runtime/arguments.hpp"
65 #include "runtime/handles.inline.hpp"
66 #include "runtime/init.hpp"
67 #include "runtime/interfaceSupport.inline.hpp"
68 #include "runtime/java.hpp"
69 #include "runtime/javaCalls.hpp"
70 #include "runtime/os.hpp"
71 #include "runtime/perfData.hpp"
72 #include "runtime/timer.hpp"
73 #include "runtime/vm_version.hpp"
74 #include "services/management.hpp"
75 #include "services/threadService.hpp"
76 #include "utilities/checkedCast.hpp"
77 #include "utilities/classpathStream.hpp"
78 #include "utilities/events.hpp"
79 #include "utilities/macros.hpp"
80 #include "utilities/ostream.hpp"
81 #include "utilities/utf8.hpp"
82
83 #include <ctype.h>
84 #include <stdlib.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
131 PerfCounter* ClassLoader::_perf_resolve_indy_time = nullptr;
132 PerfCounter* ClassLoader::_perf_resolve_invokehandle_time = nullptr;
133 PerfCounter* ClassLoader::_perf_resolve_mh_time = nullptr;
134 PerfCounter* ClassLoader::_perf_resolve_mt_time = nullptr;
135
136 PerfCounter* ClassLoader::_perf_resolve_indy_count = nullptr;
137 PerfCounter* ClassLoader::_perf_resolve_invokehandle_count = nullptr;
138 PerfCounter* ClassLoader::_perf_resolve_mh_count = nullptr;
139 PerfCounter* ClassLoader::_perf_resolve_mt_count = nullptr;
140
141 void ClassLoader::print_counters(outputStream *st) {
142 st->print_cr("ClassLoader:");
143 st->print_cr(" clinit: " JLONG_FORMAT "ms / " JLONG_FORMAT " events", ClassLoader::class_init_time_ms(), ClassLoader::class_init_count());
144 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());
145 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());
146 st->print_cr(" resolve...");
147 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());
148 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());
149 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());
150 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());
151 st->cr();
152 }
153
154 GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = nullptr;
155 GrowableArray<ModuleClassPathList*>* ClassLoader::_exploded_entries = nullptr;
156 ClassPathEntry* ClassLoader::_jrt_entry = nullptr;
157
158 ClassPathEntry* volatile ClassLoader::_first_append_entry_list = nullptr;
159 ClassPathEntry* volatile ClassLoader::_last_append_entry = nullptr;
160
161 // helper routines
162 #if INCLUDE_CDS
163 static bool string_starts_with(const char* str, const char* str_to_find) {
164 size_t str_len = strlen(str);
165 size_t str_to_find_len = strlen(str_to_find);
166 if (str_to_find_len > str_len) {
167 return false;
168 }
169 return (strncmp(str, str_to_find, str_to_find_len) == 0);
170 }
171 #endif
1362 #endif // INCLUDE_CDS
1363
1364 // Initialize the class loader's access to methods in libzip. Parse and
1365 // process the boot classpath into a list ClassPathEntry objects. Once
1366 // this list has been created, it must not change order (see class PackageInfo)
1367 // it can be appended to and is by jvmti.
1368
1369 void ClassLoader::initialize(TRAPS) {
1370 if (UsePerfData) {
1371 // jvmstat performance counters
1372 NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
1373 NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime");
1374 NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1375 NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime");
1376 NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1377 NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime");
1378 NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1379 NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
1380 NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses");
1381 NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
1382
1383 NEWPERFTICKCOUNTER(_perf_shared_classload_time, SUN_CLS, "sharedClassLoadTime");
1384 NEWPERFTICKCOUNTER(_perf_sys_classload_time, SUN_CLS, "sysClassLoadTime");
1385 NEWPERFTICKCOUNTER(_perf_app_classload_time, SUN_CLS, "appClassLoadTime");
1386 NEWPERFTICKCOUNTER(_perf_app_classload_selftime, SUN_CLS, "appClassLoadTime.self");
1387 NEWPERFEVENTCOUNTER(_perf_app_classload_count, SUN_CLS, "appClassLoadCount");
1388 NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
1389 NEWPERFTICKCOUNTER(_perf_define_appclass_time, SUN_CLS, "defineAppClassTime");
1390 NEWPERFTICKCOUNTER(_perf_define_appclass_selftime, SUN_CLS, "defineAppClassTime.self");
1391 NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
1392 NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
1393 NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, "unsafeDefineClassCalls");
1394 NEWPERFTICKCOUNTER(_perf_secondary_hash_time, SUN_CLS, "secondarySuperHashTime");
1395
1396 if (log_is_enabled(Info, perf, class, link)) {
1397 NEWPERFTICKCOUNTER(_perf_ik_link_methods_time, SUN_CLS, "linkMethodsTime");
1398 NEWPERFTICKCOUNTER(_perf_method_adapters_time, SUN_CLS, "makeAdaptersTime");
1399 NEWPERFEVENTCOUNTER(_perf_ik_link_methods_count, SUN_CLS, "linkMethodsCount");
1400 NEWPERFEVENTCOUNTER(_perf_method_adapters_count, SUN_CLS, "makeAdaptersCount");
1401
1402 NEWPERFTICKCOUNTER(_perf_resolve_indy_time, SUN_CLS, "resolve_invokedynamic_time");
1403 NEWPERFTICKCOUNTER(_perf_resolve_invokehandle_time, SUN_CLS, "resolve_invokehandle_time");
1404 NEWPERFTICKCOUNTER(_perf_resolve_mh_time, SUN_CLS, "resolve_MethodHandle_time");
1405 NEWPERFTICKCOUNTER(_perf_resolve_mt_time, SUN_CLS, "resolve_MethodType_time");
1406
1407 NEWPERFEVENTCOUNTER(_perf_resolve_indy_count, SUN_CLS, "resolve_invokedynamic_count");
1408 NEWPERFEVENTCOUNTER(_perf_resolve_invokehandle_count, SUN_CLS, "resolve_invokehandle_count");
1409 NEWPERFEVENTCOUNTER(_perf_resolve_mh_count, SUN_CLS, "resolve_MethodHandle_count");
1410 NEWPERFEVENTCOUNTER(_perf_resolve_mt_count, SUN_CLS, "resolve_MethodType_count");
1411 }
1412 }
1413
1414 // lookup java library entry points
1415 load_java_library();
1416 // jimage library entry points are loaded below, in lookup_vm_options
1417 setup_bootstrap_search_path(THREAD);
1418 }
1419
1420 static char* lookup_vm_resource(JImageFile *jimage, const char *jimage_version, const char *path) {
1421 jlong size;
1422 JImageLocationRef location = (*JImageFindResource)(jimage, "java.base", jimage_version, path, &size);
1423 if (location == 0)
1424 return nullptr;
1425 char *val = NEW_C_HEAP_ARRAY(char, size+1, mtClass);
1450
1451 bool ClassLoader::is_module_observable(const char* module_name) {
1452 assert(JImageOpen != nullptr, "jimage library should have been opened");
1453 if (JImage_file == nullptr) {
1454 struct stat st;
1455 const char *path = get_exploded_module_path(module_name, true);
1456 bool res = os::stat(path, &st) == 0;
1457 FREE_C_HEAP_ARRAY(char, path);
1458 return res;
1459 }
1460 jlong size;
1461 const char *jimage_version = get_jimage_version_string();
1462 return (*JImageFindResource)(JImage_file, module_name, jimage_version, "module-info.class", &size) != 0;
1463 }
1464
1465 jlong ClassLoader::classloader_time_ms() {
1466 return UsePerfData ?
1467 Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
1468 }
1469
1470 jlong ClassLoader::class_init_count() {
1471 return UsePerfData ? _perf_classes_inited->get_value() : -1;
1472 }
1473
1474 jlong ClassLoader::class_init_time_ms() {
1475 return UsePerfData ?
1476 Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
1477 }
1478
1479 jlong ClassLoader::class_verify_time_ms() {
1480 return UsePerfData ?
1481 Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
1482 }
1483
1484 jlong ClassLoader::class_link_count() {
1485 return UsePerfData ? _perf_classes_linked->get_value() : -1;
1486 }
1487
1488 jlong ClassLoader::class_link_time_ms() {
1489 return UsePerfData ?
|
51 #include "logging/logTag.hpp"
52 #include "memory/allocation.inline.hpp"
53 #include "memory/oopFactory.hpp"
54 #include "memory/resourceArea.hpp"
55 #include "memory/universe.hpp"
56 #include "oops/instanceKlass.hpp"
57 #include "oops/instanceRefKlass.hpp"
58 #include "oops/klass.inline.hpp"
59 #include "oops/method.inline.hpp"
60 #include "oops/objArrayOop.inline.hpp"
61 #include "oops/oop.inline.hpp"
62 #include "oops/symbol.hpp"
63 #include "prims/jvm_misc.hpp"
64 #include "runtime/arguments.hpp"
65 #include "runtime/handles.inline.hpp"
66 #include "runtime/init.hpp"
67 #include "runtime/interfaceSupport.inline.hpp"
68 #include "runtime/java.hpp"
69 #include "runtime/javaCalls.hpp"
70 #include "runtime/os.hpp"
71 #include "runtime/perfData.inline.hpp"
72 #include "runtime/timer.hpp"
73 #include "runtime/vm_version.hpp"
74 #include "services/management.hpp"
75 #include "services/threadService.hpp"
76 #include "utilities/checkedCast.hpp"
77 #include "utilities/classpathStream.hpp"
78 #include "utilities/events.hpp"
79 #include "utilities/macros.hpp"
80 #include "utilities/ostream.hpp"
81 #include "utilities/utf8.hpp"
82
83 #include <ctype.h>
84 #include <stdlib.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
137 PerfTickCounters* ClassLoader::_perf_resolve_indy_time = nullptr;
138 PerfTickCounters* ClassLoader::_perf_resolve_invokehandle_time = nullptr;
139 PerfTickCounters* ClassLoader::_perf_resolve_mh_time = nullptr;
140 PerfTickCounters* ClassLoader::_perf_resolve_mt_time = nullptr;
141
142 PerfCounter* ClassLoader::_perf_resolve_indy_count = nullptr;
143 PerfCounter* ClassLoader::_perf_resolve_invokehandle_count = nullptr;
144 PerfCounter* ClassLoader::_perf_resolve_mh_count = nullptr;
145 PerfCounter* ClassLoader::_perf_resolve_mt_count = nullptr;
146
147 void ClassLoader::print_counters(outputStream *st) {
148 st->print_cr("ClassLoader:");
149 st->print_cr( " clinit: " JLONG_FORMAT_W(6) "us / " JLONG_FORMAT " events",
150 ClassLoader::class_init_time_ms(), ClassLoader::class_init_count());
151 st->print_cr(" link methods: " JLONG_FORMAT_W(6) "us / " JLONG_FORMAT " events",
152 Management::ticks_to_us(_perf_ik_link_methods_time->get_value()) , _perf_ik_link_methods_count->get_value());
153 st->print_cr(" method adapters: " JLONG_FORMAT_W(6) "us / " JLONG_FORMAT " events",
154 Management::ticks_to_us(_perf_method_adapters_time->get_value()) , _perf_method_adapters_count->get_value());
155 if (CountBytecodes || CountBytecodesPerThread) {
156 st->print_cr("; executed " JLONG_FORMAT " bytecodes", ClassLoader::class_init_bytecodes_count());
157 }
158 st->print_cr(" resolve...");
159 st->print_cr(" invokedynamic: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
160 _perf_resolve_indy_time->elapsed_counter_value_us(),
161 _perf_resolve_indy_time->thread_counter_value_us(),
162 _perf_resolve_indy_count->get_value());
163 st->print_cr(" invokehandle: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
164 _perf_resolve_invokehandle_time->elapsed_counter_value_us(),
165 _perf_resolve_invokehandle_time->thread_counter_value_us(),
166 _perf_resolve_invokehandle_count->get_value());
167 st->print_cr(" CP_MethodHandle: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
168 _perf_resolve_mh_time->elapsed_counter_value_us(),
169 _perf_resolve_mh_time->thread_counter_value_us(),
170 _perf_resolve_mh_count->get_value());
171 st->print_cr(" CP_MethodType: " JLONG_FORMAT_W(6) "us (elapsed) " JLONG_FORMAT_W(6) "us (thread) / " JLONG_FORMAT_W(5) " events",
172 _perf_resolve_mt_time->elapsed_counter_value_us(),
173 _perf_resolve_mt_time->thread_counter_value_us(),
174 _perf_resolve_mt_count->get_value());
175 }
176
177 GrowableArray<ModuleClassPathList*>* ClassLoader::_patch_mod_entries = nullptr;
178 GrowableArray<ModuleClassPathList*>* ClassLoader::_exploded_entries = nullptr;
179 ClassPathEntry* ClassLoader::_jrt_entry = nullptr;
180
181 ClassPathEntry* volatile ClassLoader::_first_append_entry_list = nullptr;
182 ClassPathEntry* volatile ClassLoader::_last_append_entry = nullptr;
183
184 // helper routines
185 #if INCLUDE_CDS
186 static bool string_starts_with(const char* str, const char* str_to_find) {
187 size_t str_len = strlen(str);
188 size_t str_to_find_len = strlen(str_to_find);
189 if (str_to_find_len > str_len) {
190 return false;
191 }
192 return (strncmp(str, str_to_find, str_to_find_len) == 0);
193 }
194 #endif
1385 #endif // INCLUDE_CDS
1386
1387 // Initialize the class loader's access to methods in libzip. Parse and
1388 // process the boot classpath into a list ClassPathEntry objects. Once
1389 // this list has been created, it must not change order (see class PackageInfo)
1390 // it can be appended to and is by jvmti.
1391
1392 void ClassLoader::initialize(TRAPS) {
1393 if (UsePerfData) {
1394 // jvmstat performance counters
1395 NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
1396 NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime");
1397 NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1398 NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime");
1399 NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1400 NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime");
1401 NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1402 NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
1403 NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses");
1404 NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
1405 NEWPERFEVENTCOUNTER(_perf_class_init_bytecodes_count, SUN_CLS, "clinitBytecodesCount");
1406
1407 NEWPERFTICKCOUNTER(_perf_shared_classload_time, SUN_CLS, "sharedClassLoadTime");
1408 NEWPERFTICKCOUNTER(_perf_sys_classload_time, SUN_CLS, "sysClassLoadTime");
1409 NEWPERFTICKCOUNTER(_perf_app_classload_time, SUN_CLS, "appClassLoadTime");
1410 NEWPERFTICKCOUNTER(_perf_app_classload_selftime, SUN_CLS, "appClassLoadTime.self");
1411 NEWPERFEVENTCOUNTER(_perf_app_classload_count, SUN_CLS, "appClassLoadCount");
1412 NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
1413 NEWPERFTICKCOUNTER(_perf_define_appclass_time, SUN_CLS, "defineAppClassTime");
1414 NEWPERFTICKCOUNTER(_perf_define_appclass_selftime, SUN_CLS, "defineAppClassTime.self");
1415 NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
1416 NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
1417 NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, "unsafeDefineClassCalls");
1418 NEWPERFTICKCOUNTER(_perf_secondary_hash_time, SUN_CLS, "secondarySuperHashTime");
1419
1420 if (log_is_enabled(Info, perf, class, link) || log_is_enabled(Info, init)) {
1421 NEWPERFTICKCOUNTER(_perf_preload_total_time, SUN_CLS, "preloadTotalTime");
1422 NEWPERFTICKCOUNTER(_perf_preload_time, SUN_CLS, "preloadTime");
1423 NEWPERFTICKCOUNTER(_perf_prelink_time, SUN_CLS, "prelinkTime");
1424 NEWPERFTICKCOUNTER(_perf_preinit_time, SUN_CLS, "preinitTime");
1425 NEWPERFTICKCOUNTER(_perf_preresolve_time, SUN_CLS, "preresolveTime");
1426
1427 NEWPERFTICKCOUNTER(_perf_ik_link_methods_time, SUN_CLS, "linkMethodsTime");
1428 NEWPERFTICKCOUNTER(_perf_method_adapters_time, SUN_CLS, "makeAdaptersTime");
1429 NEWPERFEVENTCOUNTER(_perf_ik_link_methods_count, SUN_CLS, "linkMethodsCount");
1430 NEWPERFEVENTCOUNTER(_perf_method_adapters_count, SUN_CLS, "makeAdaptersCount");
1431
1432 NEWPERFTICKCOUNTERS(_perf_resolve_indy_time, SUN_CLS, "resolve_invokedynamic_time");
1433 NEWPERFTICKCOUNTERS(_perf_resolve_invokehandle_time, SUN_CLS, "resolve_invokehandle_time");
1434 NEWPERFTICKCOUNTERS(_perf_resolve_mh_time, SUN_CLS, "resolve_MethodHandle_time");
1435 NEWPERFTICKCOUNTERS(_perf_resolve_mt_time, SUN_CLS, "resolve_MethodType_time");
1436
1437 NEWPERFEVENTCOUNTER(_perf_resolve_indy_count, SUN_CLS, "resolve_invokedynamic_count");
1438 NEWPERFEVENTCOUNTER(_perf_resolve_invokehandle_count, SUN_CLS, "resolve_invokehandle_count");
1439 NEWPERFEVENTCOUNTER(_perf_resolve_mh_count, SUN_CLS, "resolve_MethodHandle_count");
1440 NEWPERFEVENTCOUNTER(_perf_resolve_mt_count, SUN_CLS, "resolve_MethodType_count");
1441 }
1442 }
1443
1444 // lookup java library entry points
1445 load_java_library();
1446 // jimage library entry points are loaded below, in lookup_vm_options
1447 setup_bootstrap_search_path(THREAD);
1448 }
1449
1450 static char* lookup_vm_resource(JImageFile *jimage, const char *jimage_version, const char *path) {
1451 jlong size;
1452 JImageLocationRef location = (*JImageFindResource)(jimage, "java.base", jimage_version, path, &size);
1453 if (location == 0)
1454 return nullptr;
1455 char *val = NEW_C_HEAP_ARRAY(char, size+1, mtClass);
1480
1481 bool ClassLoader::is_module_observable(const char* module_name) {
1482 assert(JImageOpen != nullptr, "jimage library should have been opened");
1483 if (JImage_file == nullptr) {
1484 struct stat st;
1485 const char *path = get_exploded_module_path(module_name, true);
1486 bool res = os::stat(path, &st) == 0;
1487 FREE_C_HEAP_ARRAY(char, path);
1488 return res;
1489 }
1490 jlong size;
1491 const char *jimage_version = get_jimage_version_string();
1492 return (*JImageFindResource)(JImage_file, module_name, jimage_version, "module-info.class", &size) != 0;
1493 }
1494
1495 jlong ClassLoader::classloader_time_ms() {
1496 return UsePerfData ?
1497 Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
1498 }
1499
1500 jlong ClassLoader::class_init_bytecodes_count() {
1501 return UsePerfData ? _perf_class_init_bytecodes_count->get_value() : -1;
1502 }
1503
1504 jlong ClassLoader::class_init_count() {
1505 return UsePerfData ? _perf_classes_inited->get_value() : -1;
1506 }
1507
1508 jlong ClassLoader::class_init_time_ms() {
1509 return UsePerfData ?
1510 Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
1511 }
1512
1513 jlong ClassLoader::class_verify_time_ms() {
1514 return UsePerfData ?
1515 Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
1516 }
1517
1518 jlong ClassLoader::class_link_count() {
1519 return UsePerfData ? _perf_classes_linked->get_value() : -1;
1520 }
1521
1522 jlong ClassLoader::class_link_time_ms() {
1523 return UsePerfData ?
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