Mercurial > hg > truffle
annotate src/share/vm/runtime/java.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
author | stefank |
---|---|
date | Tue, 23 Nov 2010 13:22:55 -0800 |
parents | c18cbe5936b8 |
children | 8f8dfba37802 |
rev | line source |
---|---|
0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
242
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
242
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
242
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_JAVA_HPP |
26 #define SHARE_VM_RUNTIME_JAVA_HPP | |
27 | |
28 #include "runtime/os.hpp" | |
29 | |
0 | 30 // Register function to be called by before_exit |
31 extern "C" { void register_on_exit_function(void (*func)(void)) ;} | |
32 | |
33 // Execute code before all handles are released and thread is killed; prologue to vm_exit | |
34 extern void before_exit(JavaThread * thread); | |
35 | |
36 // Forced VM exit (i.e, internal error or JVM_Exit) | |
37 extern void vm_exit(int code); | |
38 | |
39 // Wrapper for ::exit() | |
40 extern void vm_direct_exit(int code); | |
41 | |
42 // Shutdown the VM but do not exit the process | |
43 extern void vm_shutdown(); | |
44 // Shutdown the VM and abort the process | |
227
8d852b81e775
6694099: Hotspot vm_exit_out_of_memory should dump core
poonam
parents:
176
diff
changeset
|
45 extern void vm_abort(bool dump_core=true); |
0 | 46 |
47 // Trigger any necessary notification of the VM being shutdown | |
48 extern void notify_vm_shutdown(); | |
49 | |
50 // VM exit if error occurs during initialization of VM | |
51 extern void vm_exit_during_initialization(Handle exception); | |
52 extern void vm_exit_during_initialization(symbolHandle exception_name, const char* message); | |
53 extern void vm_exit_during_initialization(const char* error, const char* message = NULL); | |
54 extern void vm_shutdown_during_initialization(const char* error, const char* message = NULL); | |
55 | |
242 | 56 /** |
57 * Discovering the JDK_Version during initialization is tricky when the | |
58 * running JDK is less than JDK6. For JDK6 and greater, a "GetVersion" | |
59 * function exists in libjava.so and we simply call it during the | |
60 * 'initialize()' call to find the version. For JDKs with version < 6, no | |
61 * such call exists and we have to probe the JDK in order to determine | |
62 * the exact version. This probing cannot happen during late in | |
63 * the VM initialization process so there's a period of time during | |
64 * initialization when we don't know anything about the JDK version other than | |
65 * that it less than version 6. This is the "partially initialized" time, | |
66 * when we can answer only certain version queries (such as, is the JDK | |
67 * version greater than 5? Answer: no). Once the JDK probing occurs, we | |
68 * know the version and are considered fully initialized. | |
69 */ | |
70 class JDK_Version VALUE_OBJ_CLASS_SPEC { | |
0 | 71 friend class VMStructs; |
242 | 72 friend class Universe; |
73 friend void JDK_Version_init(); | |
0 | 74 private: |
242 | 75 |
76 static JDK_Version _current; | |
77 | |
78 // In this class, we promote the minor version of release to be the | |
79 // major version for releases >= 5 in anticipation of the JDK doing the | |
80 // same thing. For example, we represent "1.5.0" as major version 5 (we | |
81 // drop the leading 1 and use 5 as the 'major'). | |
82 | |
83 uint8_t _major; | |
84 uint8_t _minor; | |
85 uint8_t _micro; | |
86 uint8_t _update; | |
87 uint8_t _special; | |
88 uint8_t _build; | |
89 | |
90 // If partially initialized, the above fields are invalid and we know | |
91 // that we're less than major version 6. | |
92 bool _partially_initialized; | |
93 | |
94 bool _thread_park_blocker; | |
95 | |
96 bool is_valid() const { | |
97 return (_major != 0 || _partially_initialized); | |
98 } | |
99 | |
100 // initializes or partially initializes the _current static field | |
101 static void initialize(); | |
102 | |
103 // Completes initialization for a pre-JDK6 version. | |
104 static void fully_initialize(uint8_t major, uint8_t minor = 0, | |
105 uint8_t micro = 0, uint8_t update = 0); | |
0 | 106 |
107 public: | |
242 | 108 |
109 // Returns true if the the current version has only been partially initialized | |
110 static bool is_partially_initialized() { | |
111 return _current._partially_initialized; | |
112 } | |
113 | |
114 JDK_Version() : _major(0), _minor(0), _micro(0), _update(0), | |
115 _special(0), _build(0), _partially_initialized(false), | |
116 _thread_park_blocker(false) {} | |
0 | 117 |
242 | 118 JDK_Version(uint8_t major, uint8_t minor = 0, uint8_t micro = 0, |
119 uint8_t update = 0, uint8_t special = 0, uint8_t build = 0, | |
120 bool thread_park_blocker = false) : | |
121 _major(major), _minor(minor), _micro(micro), _update(update), | |
122 _special(special), _build(build), _partially_initialized(false), | |
123 _thread_park_blocker(thread_park_blocker) {} | |
176
6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
0
diff
changeset
|
124 |
242 | 125 // Returns the current running JDK version |
126 static JDK_Version current() { return _current; } | |
127 | |
128 // Factory methods for convenience | |
129 static JDK_Version jdk(uint8_t m) { | |
130 return JDK_Version(m); | |
131 } | |
132 | |
133 static JDK_Version jdk_update(uint8_t major, uint8_t update_number) { | |
134 return JDK_Version(major, 0, 0, update_number); | |
176
6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
0
diff
changeset
|
135 } |
6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
0
diff
changeset
|
136 |
242 | 137 uint8_t major_version() const { return _major; } |
138 uint8_t minor_version() const { return _minor; } | |
139 uint8_t micro_version() const { return _micro; } | |
140 uint8_t update_version() const { return _update; } | |
141 uint8_t special_update_version() const { return _special; } | |
142 uint8_t build_number() const { return _build; } | |
143 | |
144 bool supports_thread_park_blocker() const { | |
145 return _thread_park_blocker; | |
146 } | |
147 | |
148 // Performs a full ordering comparison using all fields (update, build, etc.) | |
149 int compare(const JDK_Version& other) const; | |
150 | |
151 /** | |
152 * Performs comparison using only the major version, returning negative | |
153 * if the major version of 'this' is less than the parameter, 0 if it is | |
154 * equal, and a positive value if it is greater. | |
155 */ | |
156 int compare_major(int version) const { | |
157 if (_partially_initialized) { | |
158 if (version >= 6) { | |
159 return -1; | |
160 } else { | |
161 assert(false, "Can't make this comparison during init time"); | |
162 return -1; // conservative | |
163 } | |
176
6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
0
diff
changeset
|
164 } else { |
242 | 165 return major_version() - version; |
176
6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
0
diff
changeset
|
166 } |
6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
0
diff
changeset
|
167 } |
0 | 168 |
242 | 169 void to_string(char* buffer, size_t buflen) const; |
170 | |
171 // Convenience methods for queries on the current major/minor version | |
172 static bool is_jdk12x_version() { | |
173 return current().compare_major(2) == 0; | |
174 } | |
175 | |
176 static bool is_jdk13x_version() { | |
177 return current().compare_major(3) == 0; | |
178 } | |
179 | |
180 static bool is_jdk14x_version() { | |
181 return current().compare_major(4) == 0; | |
182 } | |
183 | |
184 static bool is_jdk15x_version() { | |
185 return current().compare_major(5) == 0; | |
186 } | |
187 | |
188 static bool is_jdk16x_version() { | |
189 return current().compare_major(6) == 0; | |
190 } | |
191 | |
192 static bool is_jdk17x_version() { | |
193 return current().compare_major(7) == 0; | |
194 } | |
195 | |
196 static bool is_gte_jdk13x_version() { | |
197 return current().compare_major(3) >= 0; | |
198 } | |
0 | 199 |
200 static bool is_gte_jdk14x_version() { | |
242 | 201 return current().compare_major(4) >= 0; |
0 | 202 } |
242 | 203 |
204 static bool is_gte_jdk15x_version() { | |
205 return current().compare_major(5) >= 0; | |
206 } | |
207 | |
0 | 208 static bool is_gte_jdk16x_version() { |
242 | 209 return current().compare_major(6) >= 0; |
0 | 210 } |
211 | |
212 static bool is_gte_jdk17x_version() { | |
242 | 213 return current().compare_major(7) >= 0; |
0 | 214 } |
215 }; | |
1972 | 216 |
217 #endif // SHARE_VM_RUNTIME_JAVA_HPP |