1 /*
2 * Copyright (c) 1997, 2015, 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 "code/codeCacheExtensions.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
50 // Initialization done by Java thread in init_globals()
51 void management_init();
52 void bytecodes_init();
53 void classLoader_init();
54 void compilationPolicy_init();
55 void codeCache_init();
56 void VM_Version_init();
57 void os_init_globals(); // depends on VM_Version_init, before universe_init
58 void stubRoutines_init1();
59 jint universe_init(); // depends on codeCache_init and stubRoutines_init
60 void interpreter_init(); // before any methods loaded
61 void invocationCounter_init(); // before any methods loaded
62 void marksweep_init();
63 void accessFlags_init();
64 void templateTable_init();
65 void InterfaceSupport_init();
66 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
67 void referenceProcessor_init();
68 void jni_handles_init();
69 void vmStructs_init();
70
71 void vtableStubs_init();
72 void InlineCacheBuffer_init();
73 void compilerOracle_init();
74 void compileBroker_init();
75
76 // Initialization after compiler initialization
77 bool universe_post_init(); // must happen after compiler_init
78 void javaClasses_init(); // must happen after vtable initialization
79 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
80
81 // Do not disable thread-local-storage, as it is important for some
82 // JNI/JVM/JVMTI functions and signal handlers to work properly
83 // during VM shutdown
84 void perfMemory_exit();
85 void ostream_exit();
86
87 void vm_init_globals() {
88 check_ThreadShadow();
89 basic_types_init();
90 eventlog_init();
91 mutex_init();
92 chunkpool_init();
93 perfMemory_init();
94 }
95
96
97 jint init_globals() {
98 HandleMark hm;
99 management_init();
100 bytecodes_init();
101 classLoader_init();
102 compilationPolicy_init();
103 codeCache_init();
104 CodeCacheExtensions::initialize();
105 VM_Version_init();
106 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::VMVersion);
107 os_init_globals();
108 stubRoutines_init1();
109 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines1);
110 jint status = universe_init(); // dependent on codeCache_init and
111 // stubRoutines_init1 and metaspace_init.
112 if (status != JNI_OK)
113 return status;
114
115 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Universe);
116 interpreter_init(); // before any methods loaded
117 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Interpreter);
118 invocationCounter_init(); // before any methods loaded
119 marksweep_init();
120 accessFlags_init();
121 templateTable_init();
122 InterfaceSupport_init();
123 SharedRuntime::generate_stubs();
124 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
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 compileBroker_init();
135 VMRegImpl::set_regName();
136
137 if (!universe_post_init()) {
138 return JNI_ERR;
139 }
140 javaClasses_init(); // must happen after vtable initialization
141 stubRoutines_init2(); // note: StubRoutines need 2-phase init
142 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines2);
143
144 #if INCLUDE_NMT
145 // Solaris stack is walkable only after stubRoutines are set up.
146 // On Other platforms, the stack is always walkable.
147 NMT_stack_walkable = true;
148 #endif // INCLUDE_NMT
149
150 // All the flags that get adjusted by VM_Version_init and os::init_2
151 // have been set so dump the flags now.
152 if (PrintFlagsFinal || PrintFlagsRanges) {
153 CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
154 }
155
156 CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::InitGlobals);
157 return JNI_OK;
158 }
159
160
161 void exit_globals() {
162 static bool destructorsCalled = false;
163 if (!destructorsCalled) {
164 destructorsCalled = true;
165 perfMemory_exit();
166 if (PrintSafepointStatistics) {
167 // Print the collected safepoint statistics.
168 SafepointSynchronize::print_stat_on_exit();
169 }
170 if (PrintStringTableStatistics) {
171 SymbolTable::dump(tty);
172 StringTable::dump(tty);
173 }
174 ostream_exit();
175 }
176 }
177
178
179 static bool _init_completed = false;
180
181 bool is_init_completed() {
182 return _init_completed;
183 }
184
185
186 void set_init_completed() {
187 assert(Universe::is_fully_initialized(), "Should have completed initialization");
188 _init_completed = true;
189 }