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 "precompiled.hpp"
26 #include "memory/universe.hpp"
27 #include "oops/oop.inline.hpp"
28 #include "runtime/arguments.hpp"
29 #ifdef TARGET_ARCH_x86
30 # include "vm_version_x86.hpp"
31 #endif
32 #ifdef TARGET_ARCH_sparc
33 # include "vm_version_sparc.hpp"
34 #endif
35 #ifdef TARGET_ARCH_zero
36 # include "vm_version_zero.hpp"
37 #endif
38
39 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
40 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
41 bool Abstract_VM_Version::_supports_cx8 = false;
42 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
43
44 #ifndef HOTSPOT_RELEASE_VERSION
45 #error HOTSPOT_RELEASE_VERSION must be defined
46 #endif
47 #ifndef JRE_RELEASE_VERSION
48 #error JRE_RELEASE_VERSION must be defined
49 #endif
50 #ifndef HOTSPOT_BUILD_TARGET
51 #error HOTSPOT_BUILD_TARGET must be defined
52 #endif
53
54 #ifdef PRODUCT
55 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
56 #else
57 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
58 #endif
59
60 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
61 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
62 int Abstract_VM_Version::_vm_major_version = 0;
63 int Abstract_VM_Version::_vm_minor_version = 0;
64 int Abstract_VM_Version::_vm_build_number = 0;
65 bool Abstract_VM_Version::_initialized = false;
66 int Abstract_VM_Version::_parallel_worker_threads = 0;
67 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
68
69 void Abstract_VM_Version::initialize() {
70 if (_initialized) {
71 return;
72 }
73 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
74
75 // Expecting the next vm_version format:
76 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
77 char* vm_major_ver = vm_version;
78 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
79 char* vm_minor_ver = strchr(vm_major_ver, '.');
80 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
81 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
82 vm_minor_ver += 1;
83 char* vm_build_num = strchr(vm_minor_ver, '-');
84 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
85 vm_build_num[0] = '\0'; // terminate vm_minor_ver
86 vm_build_num += 2;
87
88 _vm_major_version = atoi(vm_major_ver);
89 _vm_minor_version = atoi(vm_minor_ver);
90 _vm_build_number = atoi(vm_build_num);
91
92 os::free(vm_version);
93 _initialized = true;
94 }
95
96 #if defined(_LP64)
97 #define VMLP "64-Bit "
98 #else
99 #define VMLP ""
100 #endif
101
102 #ifdef KERNEL
103 #define VMTYPE "Kernel"
104 #else // KERNEL
105 #ifdef TIERED
106 #define VMTYPE "Server"
107 #else // TIERED
108 #ifdef ZERO
109 #ifdef SHARK
110 #define VMTYPE "Shark"
111 #else // SHARK
112 #define VMTYPE "Zero"
113 #endif // SHARK
114 #else // ZERO
115 #define VMTYPE COMPILER1_PRESENT("Client") \
116 COMPILER2_PRESENT("Server")
117 #endif // ZERO
118 #endif // TIERED
119 #endif // KERNEL
120
121 #ifndef HOTSPOT_VM_DISTRO
122 #error HOTSPOT_VM_DISTRO must be defined
123 #endif
124 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
125
126 const char* Abstract_VM_Version::vm_name() {
127 return VMNAME;
128 }
129
130
131 const char* Abstract_VM_Version::vm_vendor() {
132 #ifdef VENDOR
133 return XSTR(VENDOR);
134 #else
135 return JDK_Version::is_gte_jdk17x_version() ?
136 "Oracle Corporation" : "Sun Microsystems Inc.";
137 #endif
138 }
139
140
141 const char* Abstract_VM_Version::vm_info_string() {
142 switch (Arguments::mode()) {
143 case Arguments::_int:
144 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
145 case Arguments::_mixed:
146 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
147 case Arguments::_comp:
148 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
149 };
150 ShouldNotReachHere();
151 return "";
152 }
153
154 // NOTE: do *not* use stringStream. this function is called by
155 // fatal error handler. if the crash is in native thread,
156 // stringStream cannot get resource allocated and will SEGV.
157 const char* Abstract_VM_Version::vm_release() {
158 return VM_RELEASE;
159 }
160
161 #define OS LINUX_ONLY("linux") \
162 WINDOWS_ONLY("windows") \
163 SOLARIS_ONLY("solaris")
164
165 #ifdef ZERO
166 #define CPU ZERO_LIBARCH
167 #else
168 #define CPU IA32_ONLY("x86") \
169 IA64_ONLY("ia64") \
170 AMD64_ONLY("amd64") \
171 ARM_ONLY("arm") \
172 PPC_ONLY("ppc") \
173 SPARC_ONLY("sparc")
174 #endif // ZERO
175
176 const char *Abstract_VM_Version::vm_platform_string() {
177 return OS "-" CPU;
178 }
179
180 const char* Abstract_VM_Version::internal_vm_info_string() {
181 #ifndef HOTSPOT_BUILD_USER
182 #define HOTSPOT_BUILD_USER unknown
183 #endif
184
185 #ifndef HOTSPOT_BUILD_COMPILER
186 #ifdef _MSC_VER
187 #if _MSC_VER == 1100
188 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
189 #elif _MSC_VER == 1200
190 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
191 #elif _MSC_VER == 1310
192 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
193 #elif _MSC_VER == 1400
194 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
195 #elif _MSC_VER == 1500
196 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
197 #else
198 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
199 #endif
200 #elif defined(__SUNPRO_CC)
201 #if __SUNPRO_CC == 0x420
202 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
203 #elif __SUNPRO_CC == 0x500
204 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
205 #elif __SUNPRO_CC == 0x520
206 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
207 #elif __SUNPRO_CC == 0x580
208 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
209 #elif __SUNPRO_CC == 0x590
210 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
211 #elif __SUNPRO_CC == 0x5100
212 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
213 #else
214 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
215 #endif
216 #elif defined(__GNUC__)
217 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
218 #else
219 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
220 #endif
221 #endif
222
223
224 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU
225 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
226 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
227 }
228
229 unsigned int Abstract_VM_Version::jvm_version() {
230 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
231 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
232 (Abstract_VM_Version::vm_build_number() & 0xFF);
233 }
234
235
236 void VM_Version_init() {
237 VM_Version::initialize();
238
239 #ifndef PRODUCT
240 if (PrintMiscellaneous && Verbose) {
241 os::print_cpu_info(tty);
242 }
243 #endif
244 }
245
246 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
247 unsigned int num,
248 unsigned int den,
249 unsigned int switch_pt) {
250 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
251 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
252 // For very large machines, there are diminishing returns
253 // for large numbers of worker threads. Instead of
254 // hogging the whole system, use a fraction of the workers for every
255 // processor after the first 8. For example, on a 72 cpu machine
256 // and a chosen fraction of 5/8
257 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
258 unsigned int ncpus = (unsigned int) os::active_processor_count();
259 return (ncpus <= switch_pt) ?
260 ncpus :
261 (switch_pt + ((ncpus - switch_pt) * num) / den);
262 } else {
263 return ParallelGCThreads;
264 }
265 }
266
267 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
268 return nof_parallel_worker_threads(5, 8, 8);
269 }
270
271
272 // Does not set the _initialized flag since it is
273 // a global flag.
274 unsigned int Abstract_VM_Version::parallel_worker_threads() {
275 if (!_parallel_worker_threads_initialized) {
276 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
277 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
278 } else {
279 _parallel_worker_threads = ParallelGCThreads;
280 }
281 _parallel_worker_threads_initialized = true;
282 }
283 return _parallel_worker_threads;
284 }