1 /*
2 * Copyright (c) 1997, 2016, 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/codeCacheExtensions.hpp"
29 #include "code/icBuffer.hpp"
30 #include "gc/shared/collectedHeap.hpp"
31 #include "interpreter/bytecodes.hpp"
32 #include "memory/universe.hpp"
33 #include "prims/methodHandles.hpp"
34 #include "runtime/globals.hpp"
35 #include "runtime/handles.inline.hpp"
36 #include "runtime/icache.hpp"
37 #include "runtime/init.hpp"
38 #include "runtime/safepoint.hpp"
39 #include "runtime/sharedRuntime.hpp"
40 #include "services/memTracker.hpp"
41 #include "utilities/macros.hpp"
42
43
44 // Initialization done by VM thread in vm_init_globals()
45 void check_ThreadShadow();
46 void eventlog_init();
47 void mutex_init();
48 void chunkpool_init();
49 void perfMemory_init();
50 void SuspendibleThreadSet_init() NOT_ALL_GCS_RETURN;
51
52 // Initialization done by Java thread in init_globals()
53 void management_init();
54 void bytecodes_init();
55 void classLoader_init1();
56 void classLoader_init2(); // note: ClassLoader need 2-phase init
57 void compilationPolicy_init();
58 void codeCache_init();
59 void VM_Version_init();
60 void os_init_globals(); // depends on VM_Version_init, before universe_init
61 void stubRoutines_init1();
62 jint universe_init(); // depends on codeCache_init and stubRoutines_init
63 void interpreter_init(); // before any methods loaded
64 void invocationCounter_init(); // before any methods loaded
65 void marksweep_init();
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 CodeCacheExtensions::initialize();
110 VM_Version_init();
111 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::VMVersion);
112 os_init_globals();
113 stubRoutines_init1();
114 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines1);
115 jint status = universe_init(); // dependent on codeCache_init and
116 // stubRoutines_init1 and metaspace_init.
117 if (status != JNI_OK)
118 return status;
119
120 classLoader_init2(); // after SymbolTable creation, set up -Xpatch entries
121 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Universe);
122 interpreter_init(); // before any methods loaded
123 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Interpreter);
124 invocationCounter_init(); // before any methods loaded
125 marksweep_init();
126 accessFlags_init();
127 templateTable_init();
128 InterfaceSupport_init();
129 SharedRuntime::generate_stubs();
130 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
131 referenceProcessor_init();
132 jni_handles_init();
133 #if INCLUDE_VM_STRUCTS
134 vmStructs_init();
135 #endif // INCLUDE_VM_STRUCTS
136
137 vtableStubs_init();
138 InlineCacheBuffer_init();
139 compilerOracle_init();
140 dependencyContext_init();
141
142 if (!compileBroker_init()) {
143 return JNI_EINVAL;
144 }
145 VMRegImpl::set_regName();
146
147 if (!universe_post_init()) {
148 return JNI_ERR;
149 }
150 javaClasses_init(); // must happen after vtable initialization
151 stubRoutines_init2(); // note: StubRoutines need 2-phase init
152 MethodHandles::generate_adapters();
153 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines2);
154
155 #if INCLUDE_NMT
156 // Solaris stack is walkable only after stubRoutines are set up.
157 // On Other platforms, the stack is always walkable.
158 NMT_stack_walkable = true;
159 #endif // INCLUDE_NMT
160
161 // All the flags that get adjusted by VM_Version_init and os::init_2
162 // have been set so dump the flags now.
163 if (PrintFlagsFinal || PrintFlagsRanges) {
164 CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
165 }
166
167 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::InitGlobals);
168 return JNI_OK;
169 }
170
171
172 void exit_globals() {
173 static bool destructorsCalled = false;
174 if (!destructorsCalled) {
175 destructorsCalled = true;
176 perfMemory_exit();
177 if (PrintSafepointStatistics) {
178 // Print the collected safepoint statistics.
179 SafepointSynchronize::print_stat_on_exit();
180 }
181 if (PrintStringTableStatistics) {
182 SymbolTable::dump(tty);
183 StringTable::dump(tty);
184 }
185 ostream_exit();
186 }
187 }
188
189 static volatile bool _init_completed = false;
190
191 bool is_init_completed() {
192 return _init_completed;
193 }
194
195
196 void set_init_completed() {
197 assert(Universe::is_fully_initialized(), "Should have completed initialization");
198 _init_completed = true;
199 }