init.cpp revision 1879:f95d63e2154a 
1/*
2 * Copyright (c) 1997, 2010, 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.
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23 */
24
25#include "precompiled.hpp"
26#include "code/icBuffer.hpp"
27#include "gc_interface/collectedHeap.hpp"
28#include "interpreter/bytecodes.hpp"
29#include "memory/universe.hpp"
30#include "prims/methodHandles.hpp"
31#include "runtime/handles.inline.hpp"
32#include "runtime/icache.hpp"
33#include "runtime/init.hpp"
34#include "runtime/safepoint.hpp"
35#include "runtime/sharedRuntime.hpp"
36
37// Initialization done by VM thread in vm_init_globals()
38void check_ThreadShadow();
39void eventlog_init();
40void mutex_init();
41void chunkpool_init();
42void perfMemory_init();
43
44// Initialization done by Java thread in init_globals()
45void management_init();
46void bytecodes_init();
47void classLoader_init();
48void codeCache_init();
49void VM_Version_init();
50void stubRoutines_init1();
51jint universe_init();  // dependent on codeCache_init and stubRoutines_init
52void interpreter_init();  // before any methods loaded
53void invocationCounter_init();  // before any methods loaded
54void marksweep_init();
55void accessFlags_init();
56void templateTable_init();
57void InterfaceSupport_init();
58void universe2_init();  // dependent on codeCache_init and stubRoutines_init
59void referenceProcessor_init();
60void jni_handles_init();
61void vmStructs_init();
62
63void vtableStubs_init();
64void InlineCacheBuffer_init();
65void compilerOracle_init();
66void compilationPolicy_init();
67
68
69// Initialization after compiler initialization
70bool universe_post_init();  // must happen after compiler_init
71void javaClasses_init();  // must happen after vtable initialization
72void stubRoutines_init2(); // note: StubRoutines need 2-phase init
73
74// Do not disable thread-local-storage, as it is important for some
75// JNI/JVM/JVMTI functions and signal handlers to work properly
76// during VM shutdown
77void perfMemory_exit();
78void ostream_exit();
79
80void vm_init_globals() {
81  check_ThreadShadow();
82  basic_types_init();
83  eventlog_init();
84  mutex_init();
85  chunkpool_init();
86  perfMemory_init();
87}
88
89
90jint init_globals() {
91  HandleMark hm;
92  management_init();
93  bytecodes_init();
94  classLoader_init();
95  codeCache_init();
96  VM_Version_init();
97  stubRoutines_init1();
98  jint status = universe_init();  // dependent on codeCache_init and stubRoutines_init
99  if (status != JNI_OK)
100    return status;
101
102  interpreter_init();  // before any methods loaded
103  invocationCounter_init();  // before any methods loaded
104  marksweep_init();
105  accessFlags_init();
106  templateTable_init();
107  InterfaceSupport_init();
108  SharedRuntime::generate_stubs();
109  universe2_init();  // dependent on codeCache_init and stubRoutines_init
110  referenceProcessor_init();
111  jni_handles_init();
112#ifndef VM_STRUCTS_KERNEL
113  vmStructs_init();
114#endif // VM_STRUCTS_KERNEL
115
116  vtableStubs_init();
117  InlineCacheBuffer_init();
118  compilerOracle_init();
119  compilationPolicy_init();
120  VMRegImpl::set_regName();
121
122  if (!universe_post_init()) {
123    return JNI_ERR;
124  }
125  javaClasses_init();  // must happen after vtable initialization
126  stubRoutines_init2(); // note: StubRoutines need 2-phase init
127
128  // Generate MethodHandles adapters.
129  MethodHandles::generate_adapters();
130
131  // Although we'd like to, we can't easily do a heap verify
132  // here because the main thread isn't yet a JavaThread, so
133  // its TLAB may not be made parseable from the usual interfaces.
134  if (VerifyBeforeGC && !UseTLAB &&
135      Universe::heap()->total_collections() >= VerifyGCStartAt) {
136    Universe::heap()->prepare_for_verify();
137    Universe::verify();   // make sure we're starting with a clean slate
138  }
139
140  // All the flags that get adjusted by VM_Version_init and os::init_2
141  // have been set so dump the flags now.
142  if (PrintFlagsFinal) {
143    CommandLineFlags::printFlags();
144  }
145
146  return JNI_OK;
147}
148
149
150void exit_globals() {
151  static bool destructorsCalled = false;
152  if (!destructorsCalled) {
153    destructorsCalled = true;
154    perfMemory_exit();
155    if (PrintSafepointStatistics) {
156      // Print the collected safepoint statistics.
157      SafepointSynchronize::print_stat_on_exit();
158    }
159    ostream_exit();
160  }
161}
162
163
164static bool _init_completed = false;
165
166bool is_init_completed() {
167  return _init_completed;
168}
169
170
171void set_init_completed() {
172  assert(Universe::is_fully_initialized(), "Should have completed initialization");
173  _init_completed = true;
174}
175