1 /*
2 * Copyright (c) 1997, 2013, 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 "code/icBuffer.hpp"
28 #include "gc_interface/collectedHeap.hpp"
29 #include "interpreter/bytecodes.hpp"
30 #include "memory/universe.hpp"
31 #include "prims/methodHandles.hpp"
32 #include "runtime/handles.inline.hpp"
33 #include "runtime/icache.hpp"
34 #include "runtime/init.hpp"
35 #include "runtime/safepoint.hpp"
36 #include "runtime/sharedRuntime.hpp"
37 #include "utilities/macros.hpp"
38
39 // Initialization done by VM thread in vm_init_globals()
40 void check_ThreadShadow();
41 void eventlog_init();
42 void mutex_init();
43 void chunkpool_init();
44 void perfMemory_init();
45
46 // Initialization done by Java thread in init_globals()
47 void management_init();
48 void bytecodes_init();
49 void classLoader_init();
50 void codeCache_init();
51 void VM_Version_init();
52 void os_init_globals(); // depends on VM_Version_init, before universe_init
53 void stubRoutines_init1();
54 jint universe_init(); // depends on codeCache_init and stubRoutines_init
55 void interpreter_init(); // before any methods loaded
56 void invocationCounter_init(); // before any methods loaded
57 void marksweep_init();
58 void accessFlags_init();
59 void templateTable_init();
60 void InterfaceSupport_init();
61 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
62 void referenceProcessor_init();
63 void jni_handles_init();
64 void vmStructs_init();
65
66 void vtableStubs_init();
67 void InlineCacheBuffer_init();
68 void compilerOracle_init();
69 void compilationPolicy_init();
70 void compileBroker_init();
71
72 // Initialization after compiler initialization
73 bool universe_post_init(); // must happen after compiler_init
74 void javaClasses_init(); // must happen after vtable initialization
75 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
76
77 // Do not disable thread-local-storage, as it is important for some
78 // JNI/JVM/JVMTI functions and signal handlers to work properly
79 // during VM shutdown
80 void perfMemory_exit();
81 void ostream_exit();
82
83 void vm_init_globals() {
84 check_ThreadShadow();
85 basic_types_init();
86 eventlog_init();
87 mutex_init();
88 chunkpool_init();
89 perfMemory_init();
90 }
91
92
93 jint init_globals() {
94 HandleMark hm;
95 management_init();
96 bytecodes_init();
97 classLoader_init();
98 codeCache_init();
99 VM_Version_init();
100 os_init_globals();
101 stubRoutines_init1();
102 jint status = universe_init(); // dependent on codeCache_init and
103 // stubRoutines_init1 and metaspace_init.
104 if (status != JNI_OK)
105 return status;
106
107 interpreter_init(); // before any methods loaded
108 invocationCounter_init(); // before any methods loaded
109 marksweep_init();
110 accessFlags_init();
111 templateTable_init();
112 InterfaceSupport_init();
113 SharedRuntime::generate_stubs();
114 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
115 referenceProcessor_init();
116 jni_handles_init();
117 #if INCLUDE_VM_STRUCTS
118 vmStructs_init();
119 #endif // INCLUDE_VM_STRUCTS
120
121 vtableStubs_init();
122 InlineCacheBuffer_init();
123 compilerOracle_init();
124 compilationPolicy_init();
125 compileBroker_init();
126 VMRegImpl::set_regName();
127
128 if (!universe_post_init()) {
129 return JNI_ERR;
130 }
131 javaClasses_init(); // must happen after vtable initialization
132 stubRoutines_init2(); // note: StubRoutines need 2-phase init
133
134 // All the flags that get adjusted by VM_Version_init and os::init_2
135 // have been set so dump the flags now.
136 if (PrintFlagsFinal) {
137 CommandLineFlags::printFlags(tty, false);
138 }
139
140 return JNI_OK;
141 }
142
143
144 void exit_globals() {
145 static bool destructorsCalled = false;
146 if (!destructorsCalled) {
147 destructorsCalled = true;
148 perfMemory_exit();
149 if (PrintSafepointStatistics) {
150 // Print the collected safepoint statistics.
151 SafepointSynchronize::print_stat_on_exit();
152 }
153 if (PrintStringTableStatistics) {
154 SymbolTable::dump(tty);
155 StringTable::dump(tty);
156 }
157 ostream_exit();
158 }
159 }
160
161
162 static bool _init_completed = false;
163
164 bool is_init_completed() {
165 return _init_completed;
166 }
167
168
169 void set_init_completed() {
170 assert(Universe::is_fully_initialized(), "Should have completed initialization");
171 _init_completed = true;
172 }