1 /*
2 * Copyright (c) 1997, 2018, 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 #include "interpreter/bytecodes.hpp"
31 #include "memory/universe.hpp"
32 #include "prims/methodHandles.hpp"
33 #include "runtime/flags/jvmFlag.hpp"
34 #include "runtime/handles.inline.hpp"
35 #include "runtime/icache.hpp"
36 #include "runtime/init.hpp"
37 #include "runtime/orderAccess.hpp"
38 #include "runtime/safepoint.hpp"
39 #include "runtime/sharedRuntime.hpp"
40 #include "services/memTracker.hpp"
41 #include "utilities/macros.hpp"
42
43
44 // Initialization done by VM thread in vm_init_globals()
45 void check_ThreadShadow();
46 void eventlog_init();
47 void mutex_init();
48 void chunkpool_init();
49 void perfMemory_init();
50 void SuspendibleThreadSet_init();
51
52 // Initialization done by Java thread in init_globals()
53 void management_init();
54 void bytecodes_init();
55 void classLoader_init1();
56 void compilationPolicy_init();
57 void codeCache_init();
58 void VM_Version_init();
59 void os_init_globals(); // depends on VM_Version_init, before universe_init
60 void stubRoutines_init1();
61 jint universe_init(); // depends on codeCache_init and stubRoutines_init
62 // depends on universe_init, must be before interpreter_init (currently only on SPARC)
63 void gc_barrier_stubs_init();
64 void interpreter_init(); // before any methods loaded
65 void invocationCounter_init(); // before any methods loaded
66 void accessFlags_init();
67 void templateTable_init();
68 void InterfaceSupport_init();
69 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
70 void referenceProcessor_init();
71 void jni_handles_init();
72 void vmStructs_init();
73
74 void vtableStubs_init();
75 void InlineCacheBuffer_init();
76 void compilerOracle_init();
77 bool compileBroker_init();
78 void dependencyContext_init();
79
80 // Initialization after compiler initialization
81 bool universe_post_init(); // must happen after compiler_init
82 void javaClasses_init(); // must happen after vtable initialization
83 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
84
85 // Do not disable thread-local-storage, as it is important for some
86 // JNI/JVM/JVMTI functions and signal handlers to work properly
87 // during VM shutdown
88 void perfMemory_exit();
89 void ostream_exit();
90
91 void vm_init_globals() {
92 check_ThreadShadow();
93 basic_types_init();
94 eventlog_init();
95 mutex_init();
96 chunkpool_init();
97 perfMemory_init();
98 SuspendibleThreadSet_init();
99 }
100
101
102 jint init_globals() {
103 HandleMark hm;
104 management_init();
105 bytecodes_init();
106 classLoader_init1();
107 compilationPolicy_init();
108 codeCache_init();
109 VM_Version_init();
110 os_init_globals();
111 stubRoutines_init1();
112 jint status = universe_init(); // dependent on codeCache_init and
113 // stubRoutines_init1 and metaspace_init.
114 if (status != JNI_OK)
115 return status;
116
117 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
118 interpreter_init(); // before any methods loaded
119 invocationCounter_init(); // before any methods loaded
120 accessFlags_init();
121 templateTable_init();
122 InterfaceSupport_init();
123 SharedRuntime::generate_stubs();
124 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
125 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
126 referenceProcessor_init();
127 jni_handles_init();
128 #if INCLUDE_VM_STRUCTS
129 vmStructs_init();
130 #endif // INCLUDE_VM_STRUCTS
131
132 vtableStubs_init();
133 InlineCacheBuffer_init();
134 compilerOracle_init();
135 dependencyContext_init();
136
137 if (!compileBroker_init()) {
138 return JNI_EINVAL;
139 }
140 VMRegImpl::set_regName();
141
142 if (!universe_post_init()) {
143 return JNI_ERR;
144 }
145 stubRoutines_init2(); // note: StubRoutines need 2-phase init
146 MethodHandles::generate_adapters();
147
148 #if INCLUDE_NMT
149 // Solaris stack is walkable only after stubRoutines are set up.
150 // On Other platforms, the stack is always walkable.
151 NMT_stack_walkable = true;
152 #endif // INCLUDE_NMT
153
154 // All the flags that get adjusted by VM_Version_init and os::init_2
155 // have been set so dump the flags now.
156 if (PrintFlagsFinal || PrintFlagsRanges) {
157 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
158 }
159
160 return JNI_OK;
161 }
162
163
164 void exit_globals() {
165 static bool destructorsCalled = false;
166 if (!destructorsCalled) {
167 destructorsCalled = true;
168 perfMemory_exit();
169 if (PrintSafepointStatistics) {
170 // Print the collected safepoint statistics.
171 SafepointSynchronize::print_stat_on_exit();
172 }
173 if (PrintStringTableStatistics) {
174 SymbolTable::dump(tty);
175 StringTable::dump(tty);
176 }
177 ostream_exit();
178 }
179 }
180
181 static volatile bool _init_completed = false;
182
183 bool is_init_completed() {
184 return OrderAccess::load_acquire(&_init_completed);
185 }
186
187 void wait_init_completed() {
188 MonitorLockerEx ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
189 while (!_init_completed) {
190 ml.wait(Monitor::_no_safepoint_check_flag);
191 }
192 }
193
194 void set_init_completed() {
195 assert(Universe::is_fully_initialized(), "Should have completed initialization");
196 MonitorLockerEx ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
197 OrderAccess::release_store(&_init_completed, true);
198 ml.notify_all();
199 }