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 #if INCLUDE_SERIALGC
66 void marksweep_init();
67 #endif
68 void accessFlags_init();
69 void templateTable_init();
70 void InterfaceSupport_init();
71 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
72 void referenceProcessor_init();
73 void jni_handles_init();
74 void vmStructs_init();
75
76 void vtableStubs_init();
77 void InlineCacheBuffer_init();
78 void compilerOracle_init();
79 bool compileBroker_init();
80 void dependencyContext_init();
81
82 // Initialization after compiler initialization
83 bool universe_post_init(); // must happen after compiler_init
84 void javaClasses_init(); // must happen after vtable initialization
85 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
86
87 // Do not disable thread-local-storage, as it is important for some
88 // JNI/JVM/JVMTI functions and signal handlers to work properly
89 // during VM shutdown
90 void perfMemory_exit();
91 void ostream_exit();
92
93 void vm_init_globals() {
94 check_ThreadShadow();
95 basic_types_init();
96 eventlog_init();
97 mutex_init();
98 chunkpool_init();
99 perfMemory_init();
100 SuspendibleThreadSet_init();
101 }
102
103
104 jint init_globals() {
105 HandleMark hm;
106 management_init();
107 bytecodes_init();
108 classLoader_init1();
109 compilationPolicy_init();
110 codeCache_init();
111 VM_Version_init();
112 os_init_globals();
113 stubRoutines_init1();
114 jint status = universe_init(); // dependent on codeCache_init and
115 // stubRoutines_init1 and metaspace_init.
116 if (status != JNI_OK)
117 return status;
118
119 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
120 interpreter_init(); // before any methods loaded
121 invocationCounter_init(); // before any methods loaded
122 SERIALGC_ONLY(marksweep_init());
123 accessFlags_init();
124 templateTable_init();
125 InterfaceSupport_init();
126 SharedRuntime::generate_stubs();
127 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
128 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
129 referenceProcessor_init();
130 jni_handles_init();
131 #if INCLUDE_VM_STRUCTS
132 vmStructs_init();
133 #endif // INCLUDE_VM_STRUCTS
134
135 vtableStubs_init();
136 InlineCacheBuffer_init();
137 compilerOracle_init();
138 dependencyContext_init();
139
140 if (!compileBroker_init()) {
141 return JNI_EINVAL;
142 }
143 VMRegImpl::set_regName();
144
145 if (!universe_post_init()) {
146 return JNI_ERR;
147 }
148 stubRoutines_init2(); // note: StubRoutines need 2-phase init
149 MethodHandles::generate_adapters();
150
151 #if INCLUDE_NMT
152 // Solaris stack is walkable only after stubRoutines are set up.
153 // On Other platforms, the stack is always walkable.
154 NMT_stack_walkable = true;
155 #endif // INCLUDE_NMT
156
157 // All the flags that get adjusted by VM_Version_init and os::init_2
158 // have been set so dump the flags now.
159 if (PrintFlagsFinal || PrintFlagsRanges) {
160 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
161 }
162
163 return JNI_OK;
164 }
165
166
167 void exit_globals() {
168 static bool destructorsCalled = false;
169 if (!destructorsCalled) {
170 destructorsCalled = true;
171 perfMemory_exit();
172 if (PrintSafepointStatistics) {
173 // Print the collected safepoint statistics.
174 SafepointSynchronize::print_stat_on_exit();
175 }
176 if (PrintStringTableStatistics) {
177 SymbolTable::dump(tty);
178 StringTable::dump(tty);
179 }
180 ostream_exit();
181 }
182 }
183
184 static volatile bool _init_completed = false;
185
186 bool is_init_completed() {
187 return _init_completed;
188 }
189
190
191 void set_init_completed() {
192 assert(Universe::is_fully_initialized(), "Should have completed initialization");
193 _init_completed = true;
194 }