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/globals.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() NOT_ALL_GCS_RETURN;
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 #if INCLUDE_ALL_GCS
62 // depends on universe_init, must be before interpreter_init (currently only on SPARC)
63 #ifndef ZERO
64 void g1_barrier_stubs_init() NOT_SPARC({});
65 #else
66 void g1_barrier_stubs_init() {};
67 #endif
68 #endif
69 void interpreter_init(); // before any methods loaded
70 void invocationCounter_init(); // before any methods loaded
71 void marksweep_init();
72 void accessFlags_init();
73 void templateTable_init();
74 void InterfaceSupport_init();
75 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
76 void referenceProcessor_init();
77 void jni_handles_init();
78 void vmStructs_init();
79
80 void vtableStubs_init();
81 void InlineCacheBuffer_init();
82 void compilerOracle_init();
83 bool compileBroker_init();
84 void dependencyContext_init();
85
86 // Initialization after compiler initialization
87 bool universe_post_init(); // must happen after compiler_init
88 void javaClasses_init(); // must happen after vtable initialization
89 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
90
91 // Do not disable thread-local-storage, as it is important for some
92 // JNI/JVM/JVMTI functions and signal handlers to work properly
93 // during VM shutdown
94 void perfMemory_exit();
95 void ostream_exit();
96
97 void vm_init_globals() {
98 check_ThreadShadow();
99 basic_types_init();
100 eventlog_init();
101 mutex_init();
102 chunkpool_init();
103 perfMemory_init();
104 SuspendibleThreadSet_init();
105 }
106
107
108 jint init_globals() {
109 HandleMark hm;
110 management_init();
111 bytecodes_init();
112 classLoader_init1();
113 compilationPolicy_init();
114 codeCache_init();
115 VM_Version_init();
116 os_init_globals();
117 stubRoutines_init1();
118 jint status = universe_init(); // dependent on codeCache_init and
119 // stubRoutines_init1 and metaspace_init.
120 if (status != JNI_OK)
121 return status;
122
123 #if INCLUDE_ALL_GCS
124 g1_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
125 #endif
126 interpreter_init(); // before any methods loaded
127 invocationCounter_init(); // before any methods loaded
128 marksweep_init();
129 accessFlags_init();
130 templateTable_init();
131 InterfaceSupport_init();
132 SharedRuntime::generate_stubs();
133 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
134 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
135 referenceProcessor_init();
136 jni_handles_init();
137 #if INCLUDE_VM_STRUCTS
138 vmStructs_init();
139 #endif // INCLUDE_VM_STRUCTS
140
141 vtableStubs_init();
142 InlineCacheBuffer_init();
143 compilerOracle_init();
144 dependencyContext_init();
145
146 if (!compileBroker_init()) {
147 return JNI_EINVAL;
148 }
149 VMRegImpl::set_regName();
150
151 if (!universe_post_init()) {
152 return JNI_ERR;
153 }
154 stubRoutines_init2(); // note: StubRoutines need 2-phase init
155 MethodHandles::generate_adapters();
156
157 #if INCLUDE_NMT
158 // Solaris stack is walkable only after stubRoutines are set up.
159 // On Other platforms, the stack is always walkable.
160 NMT_stack_walkable = true;
161 #endif // INCLUDE_NMT
162
163 // All the flags that get adjusted by VM_Version_init and os::init_2
164 // have been set so dump the flags now.
165 if (PrintFlagsFinal || PrintFlagsRanges) {
166 CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
167 }
168
169 return JNI_OK;
170 }
171
172
173 void exit_globals() {
174 static bool destructorsCalled = false;
175 if (!destructorsCalled) {
176 destructorsCalled = true;
177 perfMemory_exit();
178 if (PrintSafepointStatistics) {
179 // Print the collected safepoint statistics.
180 SafepointSynchronize::print_stat_on_exit();
181 }
182 if (PrintStringTableStatistics) {
183 SymbolTable::dump(tty);
184 StringTable::dump(tty);
185 }
186 ostream_exit();
187 }
188 }
189
190 static volatile bool _init_completed = false;
191
192 bool is_init_completed() {
193 return _init_completed;
194 }
195
196
197 void set_init_completed() {
198 assert(Universe::is_fully_initialized(), "Should have completed initialization");
199 _init_completed = true;
200 }