1 /*
2 * Copyright (c) 1997, 2015, 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/shared/collectedHeap.hpp"
29 #include "interpreter/bytecodes.hpp"
30 #include "memory/universe.hpp"
31 #include "prims/methodHandles.hpp"
32 #include "runtime/globals.hpp"
33 #include "runtime/handles.inline.hpp"
34 #include "runtime/icache.hpp"
35 #include "runtime/init.hpp"
36 #include "runtime/safepoint.hpp"
37 #include "runtime/sharedRuntime.hpp"
38 #include "services/memTracker.hpp"
39 #include "utilities/macros.hpp"
40
41
42 // Initialization done by VM thread in vm_init_globals()
43 void check_ThreadShadow();
44 void eventlog_init();
45 void mutex_init();
46 void chunkpool_init();
47 void perfMemory_init();
48
49 // Initialization done by Java thread in init_globals()
50 void management_init();
51 void bytecodes_init();
52 void classLoader_init();
53 void compilationPolicy_init();
54 void codeCache_init();
55 void VM_Version_init();
56 void os_init_globals(); // depends on VM_Version_init, before universe_init
57 void stubRoutines_init1();
58 jint universe_init(); // depends on codeCache_init and stubRoutines_init
59 void interpreter_init(); // before any methods loaded
60 void invocationCounter_init(); // before any methods loaded
61 void marksweep_init();
62 void accessFlags_init();
63 void templateTable_init();
64 void InterfaceSupport_init();
65 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
66 void referenceProcessor_init();
67 void jni_handles_init();
68 void vmStructs_init();
69
70 void vtableStubs_init();
71 void InlineCacheBuffer_init();
72 void compilerOracle_init();
73 void compileBroker_init();
74
75 // Initialization after compiler initialization
76 bool universe_post_init(); // must happen after compiler_init
77 void javaClasses_init(); // must happen after vtable initialization
78 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
79
80 // Do not disable thread-local-storage, as it is important for some
81 // JNI/JVM/JVMTI functions and signal handlers to work properly
82 // during VM shutdown
83 void perfMemory_exit();
84 void ostream_exit();
85 bool image_decompressor_init();
86
87 void vm_init_globals() {
88 check_ThreadShadow();
89 basic_types_init();
90 eventlog_init();
91 mutex_init();
92 chunkpool_init();
93 perfMemory_init();
94 }
95
96
97 jint init_globals() {
98 HandleMark hm;
99 management_init();
100 bytecodes_init();
101 classLoader_init();
102 compilationPolicy_init();
103 codeCache_init();
104 VM_Version_init();
105 os_init_globals();
106 stubRoutines_init1();
107 jint status = universe_init(); // dependent on codeCache_init and
108 // stubRoutines_init1 and metaspace_init.
109 if (status != JNI_OK)
110 return status;
111
112 interpreter_init(); // before any methods loaded
113 invocationCounter_init(); // before any methods loaded
114 marksweep_init();
115 accessFlags_init();
116 templateTable_init();
117 InterfaceSupport_init();
118 SharedRuntime::generate_stubs();
119 if (!image_decompressor_init()) {
120 return JNI_ERR;
121 }
122 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
123 referenceProcessor_init();
124 jni_handles_init();
125 #if INCLUDE_VM_STRUCTS
126 vmStructs_init();
127 #endif // INCLUDE_VM_STRUCTS
128
129 vtableStubs_init();
130 InlineCacheBuffer_init();
131 compilerOracle_init();
132 compileBroker_init();
133 VMRegImpl::set_regName();
134
135 if (!universe_post_init()) {
136 return JNI_ERR;
137 }
138 javaClasses_init(); // must happen after vtable initialization
139 stubRoutines_init2(); // note: StubRoutines need 2-phase init
140
141 #if INCLUDE_NMT
142 // Solaris stack is walkable only after stubRoutines are set up.
143 // On Other platforms, the stack is always walkable.
144 NMT_stack_walkable = true;
145 #endif // INCLUDE_NMT
146
147 // All the flags that get adjusted by VM_Version_init and os::init_2
148 // have been set so dump the flags now.
149 if (PrintFlagsFinal || PrintFlagsRanges) {
150 CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
151 }
152
153 return JNI_OK;
154 }
155
156
157 void exit_globals() {
158 static bool destructorsCalled = false;
159 if (!destructorsCalled) {
160 destructorsCalled = true;
161 perfMemory_exit();
162 if (PrintSafepointStatistics) {
163 // Print the collected safepoint statistics.
164 SafepointSynchronize::print_stat_on_exit();
165 }
166 if (PrintStringTableStatistics) {
167 SymbolTable::dump(tty);
168 StringTable::dump(tty);
169 }
170 ostream_exit();
171 }
172 }
173
174
175 static bool _init_completed = false;
176
177 bool is_init_completed() {
178 return _init_completed;
179 }
180
181
182 void set_init_completed() {
183 assert(Universe::is_fully_initialized(), "Should have completed initialization");
184 _init_completed = true;
185 }