1 /*
2 * Copyright (c) 1998, 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.
22 *
23 */
24
25 # include "incls/_precompiled.incl"
26 # include "incls/_vm_version.cpp.incl"
27
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;
32
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
42
43 #ifdef PRODUCT
44 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
45 #else
46 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
47 #endif
48
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;
57
58 void Abstract_VM_Version::initialize() {
59 if (_initialized) {
60 return;
61 }
62 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
63
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;
76
77 _vm_major_version = atoi(vm_major_ver);
78 _vm_minor_version = atoi(vm_minor_ver);
79 _vm_build_number = atoi(vm_build_num);
80
81 os::free(vm_version);
82 _initialized = true;
83 }
84
85 #if defined(_LP64)
86 #define VMLP "64-Bit "
87 #else
88 #define VMLP ""
89 #endif
90
91 #ifdef KERNEL
92 #define VMTYPE "Kernel"
93 #else // KERNEL
94 #ifdef TIERED
95 #define VMTYPE "Server"
96 #else // TIERED
97 #ifdef ZERO
98 #ifdef SHARK
99 #define VMTYPE "Shark"
100 #else // SHARK
101 #define VMTYPE "Zero"
102 #endif // SHARK
103 #else // ZERO
104 #define VMTYPE COMPILER1_PRESENT("Client") \
105 COMPILER2_PRESENT("Server")
106 #endif // ZERO
107 #endif // TIERED
108 #endif // KERNEL
109
110 #ifndef HOTSPOT_VM_DISTRO
111 #error HOTSPOT_VM_DISTRO must be defined
112 #endif
113 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
114
115 const char* Abstract_VM_Version::vm_name() {
116 return VMNAME;
117 }
118
119
120 const char* Abstract_VM_Version::vm_vendor() {
121 #ifdef VENDOR
122 return XSTR(VENDOR);
123 #else
124 return JDK_Version::is_gte_jdk17x_version() ?
125 "Oracle Corporation" : "Sun Microsystems Inc.";
126 #endif
127 }
128
129
130 const char* Abstract_VM_Version::vm_info_string() {
131 switch (Arguments::mode()) {
132 case Arguments::_int:
133 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
134 case Arguments::_mixed:
135 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
136 case Arguments::_comp:
137 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
138 };
139 ShouldNotReachHere();
140 return "";
141 }
142
143 // NOTE: do *not* use stringStream. this function is called by
144 // fatal error handler. if the crash is in native thread,
145 // stringStream cannot get resource allocated and will SEGV.
146 const char* Abstract_VM_Version::vm_release() {
147 return VM_RELEASE;
148 }
149
150 #define OS LINUX_ONLY("linux") \
151 WINDOWS_ONLY("windows") \
152 SOLARIS_ONLY("solaris")
153
154 #ifdef ZERO
155 #define CPU ZERO_LIBARCH
156 #else
157 #define CPU IA32_ONLY("x86") \
158 IA64_ONLY("ia64") \
159 AMD64_ONLY("amd64") \
160 ARM_ONLY("arm") \
161 PPC_ONLY("ppc") \
162 SPARC_ONLY("sparc")
163 #endif // ZERO
164
165 const char *Abstract_VM_Version::vm_platform_string() {
166 return OS "-" CPU;
167 }
168
169 const char* Abstract_VM_Version::internal_vm_info_string() {
170 #ifndef HOTSPOT_BUILD_USER
171 #define HOTSPOT_BUILD_USER unknown
172 #endif
173
174 #ifndef HOTSPOT_BUILD_COMPILER
175 #ifdef _MSC_VER
176 #if _MSC_VER == 1100
177 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
178 #elif _MSC_VER == 1200
179 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
180 #elif _MSC_VER == 1310
181 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
182 #elif _MSC_VER == 1400
183 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
184 #elif _MSC_VER == 1500
185 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
186 #else
187 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
188 #endif
189 #elif defined(__SUNPRO_CC)
190 #if __SUNPRO_CC == 0x420
191 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
192 #elif __SUNPRO_CC == 0x500
193 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
194 #elif __SUNPRO_CC == 0x520
195 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
196 #elif __SUNPRO_CC == 0x580
197 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
198 #elif __SUNPRO_CC == 0x590
199 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
200 #elif __SUNPRO_CC == 0x5100
201 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
202 #else
203 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
204 #endif
205 #elif defined(__GNUC__)
206 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
207 #else
208 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
209 #endif
210 #endif
211
212
213 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU
214 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
215 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
216 }
217
218 unsigned int Abstract_VM_Version::jvm_version() {
219 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
220 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
221 (Abstract_VM_Version::vm_build_number() & 0xFF);
222 }
223
224
225 void VM_Version_init() {
226 VM_Version::initialize();
227
228 #ifndef PRODUCT
229 if (PrintMiscellaneous && Verbose) {
230 os::print_cpu_info(tty);
231 }
232 #endif
233 }
234
235 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
236 unsigned int num,
237 unsigned int den,
238 unsigned int switch_pt) {
239 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
240 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
241 // For very large machines, there are diminishing returns
242 // for large numbers of worker threads. Instead of
243 // hogging the whole system, use a fraction of the workers for every
244 // processor after the first 8. For example, on a 72 cpu machine
245 // and a chosen fraction of 5/8
246 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
247 unsigned int ncpus = (unsigned int) os::active_processor_count();
248 return (ncpus <= switch_pt) ?
249 ncpus :
250 (switch_pt + ((ncpus - switch_pt) * num) / den);
251 } else {
252 return ParallelGCThreads;
253 }
254 }
255
256 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
257 return nof_parallel_worker_threads(5, 8, 8);
258 }
259
260
261 // Does not set the _initialized flag since it is
262 // a global flag.
263 unsigned int Abstract_VM_Version::parallel_worker_threads() {
264 if (!_parallel_worker_threads_initialized) {
265 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
266 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
267 } else {
268 _parallel_worker_threads = ParallelGCThreads;
269 }
270 _parallel_worker_threads_initialized = true;
271 }
272 return _parallel_worker_threads;
273 }