1 /*
2 * Copyright (c) 1997, 2010, 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 "incls/_precompiled.incl"
26 # include "incls/_init.cpp.incl"
27
28 // Initialization done by VM thread in vm_init_globals()
29 void check_ThreadShadow();
30 void eventlog_init();
31 void mutex_init();
32 void chunkpool_init();
33 void perfMemory_init();
34
35 // Initialization done by Java thread in init_globals()
36 void management_init();
37 void bytecodes_init();
38 void classLoader_init();
39 void codeCache_init();
40 void VM_Version_init();
41 void stubRoutines_init1();
42 jint universe_init(); // dependent on codeCache_init and stubRoutines_init
43 void interpreter_init(); // before any methods loaded
44 void invocationCounter_init(); // before any methods loaded
45 void marksweep_init();
46 void accessFlags_init();
47 void templateTable_init();
48 void InterfaceSupport_init();
49 void universe2_init(); // dependent on codeCache_init and stubRoutines_init
50 void referenceProcessor_init();
51 void jni_handles_init();
52 void vmStructs_init();
53
54 void vtableStubs_init();
55 void InlineCacheBuffer_init();
56 void compilerOracle_init();
57 void compilationPolicy_init();
58
59
60 // Initialization after compiler initialization
61 bool universe_post_init(); // must happen after compiler_init
62 void javaClasses_init(); // must happen after vtable initialization
63 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
64
65 // Do not disable thread-local-storage, as it is important for some
66 // JNI/JVM/JVMTI functions and signal handlers to work properly
67 // during VM shutdown
68 void perfMemory_exit();
69 void ostream_exit();
70
71 void vm_init_globals() {
72 check_ThreadShadow();
73 basic_types_init();
74 eventlog_init();
75 mutex_init();
76 chunkpool_init();
77 perfMemory_init();
78 }
79
80
81 jint init_globals() {
82 HandleMark hm;
83 management_init();
84 bytecodes_init();
85 classLoader_init();
86 codeCache_init();
87 VM_Version_init();
88 stubRoutines_init1();
89 jint status = universe_init(); // dependent on codeCache_init and stubRoutines_init
90 if (status != JNI_OK)
91 return status;
92
93 interpreter_init(); // before any methods loaded
94 invocationCounter_init(); // before any methods loaded
95 marksweep_init();
96 accessFlags_init();
97 templateTable_init();
98 InterfaceSupport_init();
99 SharedRuntime::generate_stubs();
100 universe2_init(); // dependent on codeCache_init and stubRoutines_init
101 referenceProcessor_init();
102 jni_handles_init();
103 #ifndef VM_STRUCTS_KERNEL
104 vmStructs_init();
105 #endif // VM_STRUCTS_KERNEL
106
107 vtableStubs_init();
108 InlineCacheBuffer_init();
109 compilerOracle_init();
110 compilationPolicy_init();
111 VMRegImpl::set_regName();
112
113 if (!universe_post_init()) {
114 return JNI_ERR;
115 }
116 javaClasses_init(); // must happen after vtable initialization
117 stubRoutines_init2(); // note: StubRoutines need 2-phase init
118
119 // Generate MethodHandles adapters.
120 MethodHandles::generate_adapters();
121
122 // Although we'd like to, we can't easily do a heap verify
123 // here because the main thread isn't yet a JavaThread, so
124 // its TLAB may not be made parseable from the usual interfaces.
125 if (VerifyBeforeGC && !UseTLAB &&
126 Universe::heap()->total_collections() >= VerifyGCStartAt) {
127 Universe::heap()->prepare_for_verify();
128 Universe::verify(); // make sure we're starting with a clean slate
129 }
130
131 // All the flags that get adjusted by VM_Version_init and os::init_2
132 // have been set so dump the flags now.
133 if (PrintFlagsFinal) {
134 CommandLineFlags::printFlags();
135 }
136
137 return JNI_OK;
138 }
139
140
141 void exit_globals() {
142 static bool destructorsCalled = false;
143 if (!destructorsCalled) {
144 destructorsCalled = true;
145 perfMemory_exit();
146 if (PrintSafepointStatistics) {
147 // Print the collected safepoint statistics.
148 SafepointSynchronize::print_stat_on_exit();
149 }
150 ostream_exit();
151 }
152 }
153
154
155 static bool _init_completed = false;
156
157 bool is_init_completed() {
158 return _init_completed;
159 }
160
161
162 void set_init_completed() {
163 _init_completed = true;
164 }