Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/runtime/vm_version.cpp@873ec3787992
src/share/vm/runtime/vm_version.cpp
Wed, 21 Oct 2009 09:15:33 -0700
- author
- kvn
- date
- Wed, 21 Oct 2009 09:15:33 -0700
- changeset 1475
- 873ec3787992
- parent 1445
- 354d3184f6b2
- child 1902
- fb1a39993f69
- permissions
- -rw-r--r--
6892186: SA does not dump debug info for scalar replaced objects
Summary: Implement scalar replaced objects debug info dump in SA.
Reviewed-by: twisti
1 /*
2 * Copyright 1998-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 # include "incls/_precompiled.incl"
26 # include "incls/_vm_version.cpp.incl"
28 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
29 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
30 bool Abstract_VM_Version::_supports_cx8 = false;
31 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
33 #ifndef HOTSPOT_RELEASE_VERSION
34 #error HOTSPOT_RELEASE_VERSION must be defined
35 #endif
36 #ifndef JRE_RELEASE_VERSION
37 #error JRE_RELEASE_VERSION must be defined
38 #endif
39 #ifndef HOTSPOT_BUILD_TARGET
40 #error HOTSPOT_BUILD_TARGET must be defined
41 #endif
43 #ifdef PRODUCT
44 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
45 #else
46 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
47 #endif
49 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
50 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
51 int Abstract_VM_Version::_vm_major_version = 0;
52 int Abstract_VM_Version::_vm_minor_version = 0;
53 int Abstract_VM_Version::_vm_build_number = 0;
54 bool Abstract_VM_Version::_initialized = false;
55 int Abstract_VM_Version::_parallel_worker_threads = 0;
56 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
58 void Abstract_VM_Version::initialize() {
59 if (_initialized) {
60 return;
61 }
62 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
64 // Expecting the next vm_version format:
65 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
66 char* vm_major_ver = vm_version;
67 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
68 char* vm_minor_ver = strchr(vm_major_ver, '.');
69 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
70 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
71 vm_minor_ver += 1;
72 char* vm_build_num = strchr(vm_minor_ver, '-');
73 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
74 vm_build_num[0] = '\0'; // terminate vm_minor_ver
75 vm_build_num += 2;
77 _vm_major_version = atoi(vm_major_ver);
78 _vm_minor_version = atoi(vm_minor_ver);
79 _vm_build_number = atoi(vm_build_num);
81 os::free(vm_version);
82 _initialized = true;
83 }
85 #if defined(_LP64)
86 #define VMLP "64-Bit "
87 #else
88 #define VMLP ""
89 #endif
91 #ifdef KERNEL
92 #define VMTYPE "Kernel"
93 #else // KERNEL
94 #ifdef TIERED
95 #define VMTYPE "Server"
96 #else // TIERED
97 #ifdef ZERO
98 #define VMTYPE "Zero"
99 #else // ZERO
100 #define VMTYPE COMPILER1_PRESENT("Client") \
101 COMPILER2_PRESENT("Server")
102 #endif // ZERO
103 #endif // TIERED
104 #endif // KERNEL
106 #ifndef HOTSPOT_VM_DISTRO
107 #error HOTSPOT_VM_DISTRO must be defined
108 #endif
109 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
111 const char* Abstract_VM_Version::vm_name() {
112 return VMNAME;
113 }
116 const char* Abstract_VM_Version::vm_vendor() {
117 #ifdef VENDOR
118 return XSTR(VENDOR);
119 #else
120 return "Sun Microsystems Inc.";
121 #endif
122 }
125 const char* Abstract_VM_Version::vm_info_string() {
126 switch (Arguments::mode()) {
127 case Arguments::_int:
128 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
129 case Arguments::_mixed:
130 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
131 case Arguments::_comp:
132 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
133 };
134 ShouldNotReachHere();
135 return "";
136 }
138 // NOTE: do *not* use stringStream. this function is called by
139 // fatal error handler. if the crash is in native thread,
140 // stringStream cannot get resource allocated and will SEGV.
141 const char* Abstract_VM_Version::vm_release() {
142 return VM_RELEASE;
143 }
145 #define OS LINUX_ONLY("linux") \
146 WINDOWS_ONLY("windows") \
147 SOLARIS_ONLY("solaris")
149 #ifdef ZERO
150 #define CPU ZERO_LIBARCH
151 #else
152 #define CPU IA32_ONLY("x86") \
153 IA64_ONLY("ia64") \
154 AMD64_ONLY("amd64") \
155 SPARC_ONLY("sparc")
156 #endif // ZERO
158 const char *Abstract_VM_Version::vm_platform_string() {
159 return OS "-" CPU;
160 }
162 const char* Abstract_VM_Version::internal_vm_info_string() {
163 #ifndef HOTSPOT_BUILD_USER
164 #define HOTSPOT_BUILD_USER unknown
165 #endif
167 #ifndef HOTSPOT_BUILD_COMPILER
168 #ifdef _MSC_VER
169 #if _MSC_VER == 1100
170 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
171 #elif _MSC_VER == 1200
172 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
173 #elif _MSC_VER == 1310
174 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
175 #elif _MSC_VER == 1400
176 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
177 #elif _MSC_VER == 1500
178 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
179 #else
180 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
181 #endif
182 #elif defined(__SUNPRO_CC)
183 #if __SUNPRO_CC == 0x420
184 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
185 #elif __SUNPRO_CC == 0x500
186 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
187 #elif __SUNPRO_CC == 0x520
188 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
189 #elif __SUNPRO_CC == 0x580
190 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
191 #elif __SUNPRO_CC == 0x590
192 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
193 #else
194 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
195 #endif
196 #elif defined(__GNUC__)
197 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
198 #else
199 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
200 #endif
201 #endif
204 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU
205 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
206 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
207 }
209 unsigned int Abstract_VM_Version::jvm_version() {
210 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
211 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
212 (Abstract_VM_Version::vm_build_number() & 0xFF);
213 }
216 void VM_Version_init() {
217 VM_Version::initialize();
219 #ifndef PRODUCT
220 if (PrintMiscellaneous && Verbose) {
221 os::print_cpu_info(tty);
222 }
223 #endif
224 }
226 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
227 unsigned int num,
228 unsigned int den,
229 unsigned int switch_pt) {
230 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
231 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
232 // For very large machines, there are diminishing returns
233 // for large numbers of worker threads. Instead of
234 // hogging the whole system, use a fraction of the workers for every
235 // processor after the first 8. For example, on a 72 cpu machine
236 // and a chosen fraction of 5/8
237 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
238 unsigned int ncpus = (unsigned int) os::active_processor_count();
239 return (ncpus <= switch_pt) ?
240 ncpus :
241 (switch_pt + ((ncpus - switch_pt) * num) / den);
242 } else {
243 return ParallelGCThreads;
244 }
245 }
247 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
248 return nof_parallel_worker_threads(5, 8, 8);
249 }
252 // Does not set the _initialized flag since it is
253 // a global flag.
254 unsigned int Abstract_VM_Version::parallel_worker_threads() {
255 if (!_parallel_worker_threads_initialized) {
256 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
257 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
258 } else {
259 _parallel_worker_threads = ParallelGCThreads;
260 }
261 _parallel_worker_threads_initialized = true;
262 }
263 return _parallel_worker_threads;
264 }
