1 /*
2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
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/stringTable.hpp"
27 #include "classfile/symbolTable.hpp"
28 #include "code/icBuffer.hpp"
29 #include "gc/shared/collectedHeap.hpp"
30 #if INCLUDE_JVMCI
31 #include "jvmci/jvmci.hpp"
32 #endif
33 #include "interpreter/bytecodes.hpp"
34 #include "logging/log.hpp"
35 #include "logging/logTag.hpp"
36 #include "memory/universe.hpp"
37 #include "prims/methodHandles.hpp"
38 #include "runtime/flags/jvmFlag.hpp"
39 #include "runtime/handles.inline.hpp"
40 #include "runtime/icache.hpp"
41 #include "runtime/init.hpp"
42 #include "runtime/orderAccess.hpp"
43 #include "runtime/safepoint.hpp"
44 #include "runtime/sharedRuntime.hpp"
45 #include "services/memTracker.hpp"
46 #include "utilities/macros.hpp"
47
48
49 // Initialization done by VM thread in vm_init_globals()
50 void check_ThreadShadow();
51 void eventlog_init();
52 void mutex_init();
53 void oopstorage_init();
54 void chunkpool_init();
55 void perfMemory_init();
56 void SuspendibleThreadSet_init();
57
58 // Initialization done by Java thread in init_globals()
59 void management_init();
60 void bytecodes_init();
61 void classLoader_init1();
62 void compilationPolicy_init();
63 void codeCache_init();
64 void VM_Version_init();
65 void os_init_globals(); // depends on VM_Version_init, before universe_init
66 void stubRoutines_init1();
67 jint universe_init(); // depends on codeCache_init and stubRoutines_init
68 // depends on universe_init, must be before interpreter_init (currently only on SPARC)
69 void gc_barrier_stubs_init();
70 void interpreter_init(); // before any methods loaded
71 void invocationCounter_init(); // before any methods loaded
72 void accessFlags_init();
73 void templateTable_init();
74 void InterfaceSupport_init();
75 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
76 void referenceProcessor_init();
77 void jni_handles_init();
78 void vmStructs_init();
79
80 void vtableStubs_init();
81 void InlineCacheBuffer_init();
82 void compilerOracle_init();
83 bool compileBroker_init();
84 void dependencyContext_init();
85
86 // Initialization after compiler initialization
87 bool universe_post_init(); // must happen after compiler_init
88 void javaClasses_init(); // must happen after vtable initialization
89 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
90
91 // Do not disable thread-local-storage, as it is important for some
92 // JNI/JVM/JVMTI functions and signal handlers to work properly
93 // during VM shutdown
94 void perfMemory_exit();
95 void ostream_exit();
96
97 void vm_init_globals() {
98 check_ThreadShadow();
99 basic_types_init();
100 eventlog_init();
101 mutex_init();
102 oopstorage_init();
103 chunkpool_init();
104 perfMemory_init();
105 SuspendibleThreadSet_init();
106 }
107
108
109 jint init_globals() {
110 HandleMark hm;
111 management_init();
112 bytecodes_init();
113 classLoader_init1();
114 compilationPolicy_init();
115 codeCache_init();
116 VM_Version_init();
117 os_init_globals();
118 stubRoutines_init1();
119 jint status = universe_init(); // dependent on codeCache_init and
120 // stubRoutines_init1 and metaspace_init.
121 if (status != JNI_OK)
122 return status;
123
124 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
125 interpreter_init(); // before any methods loaded
126 invocationCounter_init(); // before any methods loaded
127 accessFlags_init();
128 templateTable_init();
129 InterfaceSupport_init();
130 VMRegImpl::set_regName(); // need this before generate_stubs (for printing oop maps).
131 SharedRuntime::generate_stubs();
132 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
133 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
134 referenceProcessor_init();
135 jni_handles_init();
136 #if INCLUDE_VM_STRUCTS
137 vmStructs_init();
138 #endif // INCLUDE_VM_STRUCTS
139
140 vtableStubs_init();
141 InlineCacheBuffer_init();
142 compilerOracle_init();
143 dependencyContext_init();
144
145 if (!compileBroker_init()) {
146 return JNI_EINVAL;
147 }
148 #if INCLUDE_JVMCI
149 if (EnableJVMCI) {
150 JVMCI::initialize_globals();
151 }
152 #endif
153
154 if (!universe_post_init()) {
155 return JNI_ERR;
156 }
157 stubRoutines_init2(); // note: StubRoutines need 2-phase init
158 MethodHandles::generate_adapters();
159
160 #if INCLUDE_NMT
161 // Solaris stack is walkable only after stubRoutines are set up.
162 // On Other platforms, the stack is always walkable.
163 NMT_stack_walkable = true;
164 #endif // INCLUDE_NMT
165
166 // All the flags that get adjusted by VM_Version_init and os::init_2
167 // have been set so dump the flags now.
168 if (PrintFlagsFinal || PrintFlagsRanges) {
169 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
170 }
171
172 return JNI_OK;
173 }
174
175
176 void exit_globals() {
177 static bool destructorsCalled = false;
178 if (!destructorsCalled) {
179 destructorsCalled = true;
180 if (log_is_enabled(Info, monitorinflation)) {
181 // The ObjectMonitor subsystem uses perf counters so
182 // do this before perfMemory_exit().
183 // ObjectSynchronizer::finish_deflate_idle_monitors()'s call
184 // to audit_and_print_stats() is done at the Debug level.
185 ObjectSynchronizer::audit_and_print_stats(true /* on_exit */);
186 }
187 perfMemory_exit();
188 SafepointTracing::statistics_exit_log();
189 if (PrintStringTableStatistics) {
190 SymbolTable::dump(tty);
191 StringTable::dump(tty);
192 }
193 ostream_exit();
194 }
195 }
196
197 static volatile bool _init_completed = false;
198
199 bool is_init_completed() {
200 return OrderAccess::load_acquire(&_init_completed);
201 }
202
203 void wait_init_completed() {
204 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
205 while (!_init_completed) {
206 ml.wait();
207 }
208 }
209
210 void set_init_completed() {
211 assert(Universe::is_fully_initialized(), "Should have completed initialization");
212 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
213 OrderAccess::release_store(&_init_completed, true);
214 ml.notify_all();
215 }