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