Mercurial > hg > truffle
annotate src/share/vm/runtime/vm_version.hpp @ 4155:394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 21 Dec 2011 11:25:27 +0100 |
| parents | 1af104d6cf99 |
| children | c77d473e71f7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
2426
1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
trims
parents:
2199
diff
changeset
|
2 * Copyright (c) 1997, 2011, 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:
196
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
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:
196
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_VM_VERSION_HPP |
| 26 #define SHARE_VM_RUNTIME_VM_VERSION_HPP | |
| 27 | |
| 28 #include "memory/allocation.hpp" | |
| 29 #include "utilities/ostream.hpp" | |
| 30 | |
| 0 | 31 // VM_Version provides information about the VM. |
| 32 | |
| 33 class Abstract_VM_Version: AllStatic { | |
| 34 protected: | |
| 35 friend class VMStructs; | |
| 36 static const char* _s_vm_release; | |
| 37 static const char* _s_internal_vm_info_string; | |
| 38 // These are set by machine-dependent initializations | |
| 39 static bool _supports_cx8; | |
| 40 static unsigned int _logical_processors_per_package; | |
| 41 static int _vm_major_version; | |
| 42 static int _vm_minor_version; | |
| 43 static int _vm_build_number; | |
| 44 static bool _initialized; | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
45 static int _parallel_worker_threads; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
46 static bool _parallel_worker_threads_initialized; |
| 3854 | 47 static int _reserve_for_allocation_prefetch; |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
48 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
49 static unsigned int nof_parallel_worker_threads(unsigned int num, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
50 unsigned int dem, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
51 unsigned int switch_pt); |
| 0 | 52 public: |
| 53 static void initialize(); | |
| 54 | |
| 55 // Name | |
| 56 static const char* vm_name(); | |
| 57 // Vendor | |
| 58 static const char* vm_vendor(); | |
| 59 // VM version information string printed by launcher (java -version) | |
| 60 static const char* vm_info_string(); | |
| 61 static const char* vm_release(); | |
| 62 static const char* vm_platform_string(); | |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
1972
diff
changeset
|
63 static const char* vm_build_user(); |
| 0 | 64 |
| 65 static int vm_major_version() { assert(_initialized, "not initialized"); return _vm_major_version; } | |
| 66 static int vm_minor_version() { assert(_initialized, "not initialized"); return _vm_minor_version; } | |
| 67 static int vm_build_number() { assert(_initialized, "not initialized"); return _vm_build_number; } | |
| 68 | |
| 69 // Gets the jvm_version_info.jvm_version defined in jvm.h | |
| 70 static unsigned int jvm_version(); | |
| 71 | |
| 72 // Internal version providing additional build information | |
| 73 static const char* internal_vm_info_string(); | |
| 74 | |
| 75 // does HW support an 8-byte compare-exchange operation? | |
| 76 static bool supports_cx8() {return _supports_cx8;} | |
| 77 static unsigned int logical_processors_per_package() { | |
| 78 return _logical_processors_per_package; | |
| 79 } | |
| 80 | |
| 3854 | 81 // Need a space at the end of TLAB for prefetch instructions |
| 82 // which may fault when accessing memory outside of heap. | |
| 83 static int reserve_for_allocation_prefetch() { | |
| 84 return _reserve_for_allocation_prefetch; | |
| 85 } | |
| 86 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
87 // ARCH specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
88 static bool use_biased_locking() { return true; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
89 |
| 0 | 90 // Number of page sizes efficiently supported by the hardware. Most chips now |
| 91 // support two sizes, thus this default implementation. Processor-specific | |
| 92 // subclasses should define new versions to hide this one as needed. Note | |
| 93 // that the O/S may support more sizes, but at most this many are used. | |
| 94 static uint page_size_count() { return 2; } | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
95 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
96 // Returns the number of parallel threads to be used for VM |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
97 // work. If that number has not been calculated, do so and |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
98 // save it. Returns ParallelGCThreads if it is set on the |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
99 // command line. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
100 static unsigned int parallel_worker_threads(); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
101 // Calculates and returns the number of parallel threads. May |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
102 // be VM version specific. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
103 static unsigned int calc_parallel_worker_threads(); |
| 0 | 104 }; |
| 1972 | 105 |
| 106 #endif // SHARE_VM_RUNTIME_VM_VERSION_HPP |