1 /*
2 * Copyright (c) 1997, 2019, 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 "logging/log.hpp"
32 #include "logging/logTag.hpp"
33 #include "memory/universe.hpp"
34 #include "prims/methodHandles.hpp"
35 #include "runtime/flags/jvmFlag.hpp"
36 #include "runtime/handles.inline.hpp"
37 #include "runtime/icache.hpp"
38 #include "runtime/init.hpp"
39 #include "runtime/orderAccess.hpp"
40 #include "runtime/safepoint.hpp"
41 #include "runtime/sharedRuntime.hpp"
42 #include "services/memTracker.hpp"
43 #include "utilities/macros.hpp"
44
45
46 // Initialization done by VM thread in vm_init_globals()
47 void check_ThreadShadow();
48 void eventlog_init();
49 void mutex_init();
50 void chunkpool_init();
51 void perfMemory_init();
52 void SuspendibleThreadSet_init();
53
54 // Initialization done by Java thread in init_globals()
55 void management_init();
56 void bytecodes_init();
57 void classLoader_init1();
58 void compilationPolicy_init();
59 void codeCache_init();
60 void VM_Version_init();
61 void os_init_globals(); // depends on VM_Version_init, before universe_init
62 void stubRoutines_init1();
63 jint universe_init(); // depends on codeCache_init and stubRoutines_init
64 // depends on universe_init, must be before interpreter_init (currently only on SPARC)
65 void gc_barrier_stubs_init();
66 void interpreter_init(); // before any methods loaded
67 void invocationCounter_init(); // before any methods loaded
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 accessFlags_init();
123 templateTable_init();
124 InterfaceSupport_init();
125 SharedRuntime::generate_stubs();
126 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
127 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
128 referenceProcessor_init();
129 jni_handles_init();
130 #if INCLUDE_VM_STRUCTS
131 vmStructs_init();
132 #endif // INCLUDE_VM_STRUCTS
133
134 vtableStubs_init();
135 InlineCacheBuffer_init();
136 compilerOracle_init();
137 dependencyContext_init();
138
139 if (!compileBroker_init()) {
140 return JNI_EINVAL;
141 }
142 VMRegImpl::set_regName();
143
144 if (!universe_post_init()) {
145 return JNI_ERR;
146 }
147 stubRoutines_init2(); // note: StubRoutines need 2-phase init
148 MethodHandles::generate_adapters();
149
150 #if INCLUDE_NMT
151 // Solaris stack is walkable only after stubRoutines are set up.
152 // On Other platforms, the stack is always walkable.
153 NMT_stack_walkable = true;
154 #endif // INCLUDE_NMT
155
156 // All the flags that get adjusted by VM_Version_init and os::init_2
157 // have been set so dump the flags now.
158 if (PrintFlagsFinal || PrintFlagsRanges) {
159 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
160 }
161
162 return JNI_OK;
163 }
164
165
166 void exit_globals() {
167 static bool destructorsCalled = false;
168 if (!destructorsCalled) {
169 destructorsCalled = true;
170 if (log_is_enabled(Info, monitorinflation)) {
171 // The ObjectMonitor subsystem uses perf counters so
172 // do this before perfMemory_exit().
173 // ObjectSynchronizer::finish_deflate_idle_monitors()'s call
174 // to audit_and_print_stats() is done at the Debug level.
175 ObjectSynchronizer::audit_and_print_stats(true /* on_exit */);
176 }
177 perfMemory_exit();
178 SafepointTracing::statistics_exit_log();
179 if (PrintStringTableStatistics) {
180 SymbolTable::dump(tty);
181 StringTable::dump(tty);
182 }
183 ostream_exit();
184 }
185 }
186
187 static volatile bool _init_completed = false;
188
189 bool is_init_completed() {
190 return OrderAccess::load_acquire(&_init_completed);
191 }
192
193 void wait_init_completed() {
194 MonitorLockerEx ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
195 while (!_init_completed) {
196 ml.wait(Monitor::_no_safepoint_check_flag);
197 }
198 }
199
200 void set_init_completed() {
201 assert(Universe::is_fully_initialized(), "Should have completed initialization");
202 MonitorLockerEx ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
203 OrderAccess::release_store(&_init_completed, true);
204 ml.notify_all();
205 }