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 void stubRoutines_initContinuationStubs();
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 stubRoutines_initContinuationStubs();
119 interpreter_init(); // before any methods loaded
120 invocationCounter_init(); // before any methods loaded
121 accessFlags_init();
122 templateTable_init();
123 InterfaceSupport_init();
124 SharedRuntime::generate_stubs();
125 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
126 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
127 referenceProcessor_init();
128 jni_handles_init();
129 #if INCLUDE_VM_STRUCTS
130 vmStructs_init();
131 #endif // INCLUDE_VM_STRUCTS
132
133 vtableStubs_init();
134 InlineCacheBuffer_init();
135 compilerOracle_init();
136 dependencyContext_init();
137
138 if (!compileBroker_init()) {
139 return JNI_EINVAL;
140 }
141 VMRegImpl::set_regName();
142
143 if (!universe_post_init()) {
144 return JNI_ERR;
145 }
146 stubRoutines_init2(); // note: StubRoutines need 2-phase init
147 MethodHandles::generate_adapters();
148
149 #if INCLUDE_NMT
150 // Solaris stack is walkable only after stubRoutines are set up.
151 // On Other platforms, the stack is always walkable.
152 NMT_stack_walkable = true;
153 #endif // INCLUDE_NMT
154
155 // All the flags that get adjusted by VM_Version_init and os::init_2
156 // have been set so dump the flags now.
157 if (PrintFlagsFinal || PrintFlagsRanges) {
158 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
159 }
160
161 return JNI_OK;
162 }
163
164
165 void exit_globals() {
166 static bool destructorsCalled = false;
167 if (!destructorsCalled) {
168 destructorsCalled = true;
169 perfMemory_exit();
170 if (PrintSafepointStatistics) {
171 // Print the collected safepoint statistics.
172 SafepointSynchronize::print_stat_on_exit();
173 }
174 if (PrintStringTableStatistics) {
175 SymbolTable::dump(tty);
176 StringTable::dump(tty);
177 }
178 ostream_exit();
179 }
180 }
181
182 static volatile bool _init_completed = false;
183
184 bool is_init_completed() {
185 return _init_completed;
186 }
187
188
189 void set_init_completed() {
190 assert(Universe::is_fully_initialized(), "Should have completed initialization");
191 _init_completed = true;
192 }