1 /*
2 * Copyright (c) 1998, 2011, 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 #ifdef TARGET_ARCH_arm
39 # include "vm_version_arm.hpp"
40 #endif
41 #ifdef TARGET_ARCH_ppc
42 # include "vm_version_ppc.hpp"
43 #endif
44
45 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
46 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
47 bool Abstract_VM_Version::_supports_cx8 = false;
48 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
49
50 #ifndef HOTSPOT_RELEASE_VERSION
51 #error HOTSPOT_RELEASE_VERSION must be defined
52 #endif
53 #ifndef JRE_RELEASE_VERSION
54 #error JRE_RELEASE_VERSION must be defined
55 #endif
56 #ifndef HOTSPOT_BUILD_TARGET
57 #error HOTSPOT_BUILD_TARGET must be defined
58 #endif
59
60 #ifdef PRODUCT
61 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
62 #else
63 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
64 #endif
65
66 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
67 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
68 int Abstract_VM_Version::_vm_major_version = 0;
69 int Abstract_VM_Version::_vm_minor_version = 0;
70 int Abstract_VM_Version::_vm_build_number = 0;
71 bool Abstract_VM_Version::_initialized = false;
72 int Abstract_VM_Version::_parallel_worker_threads = 0;
73 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
74
75 void Abstract_VM_Version::initialize() {
76 if (_initialized) {
77 return;
78 }
79 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
80
81 // Expecting the next vm_version format:
82 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
83 char* vm_major_ver = vm_version;
84 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
85 char* vm_minor_ver = strchr(vm_major_ver, '.');
86 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
87 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
88 vm_minor_ver += 1;
89 char* vm_build_num = strchr(vm_minor_ver, '-');
90 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
91 vm_build_num[0] = '\0'; // terminate vm_minor_ver
92 vm_build_num += 2;
93
94 _vm_major_version = atoi(vm_major_ver);
95 _vm_minor_version = atoi(vm_minor_ver);
96 _vm_build_number = atoi(vm_build_num);
97
98 os::free(vm_version);
99 _initialized = true;
100 }
101
102 #if defined(_LP64)
103 #define VMLP "64-Bit "
104 #else
105 #define VMLP ""
106 #endif
107
108 #ifdef KERNEL
109 #define VMTYPE "Kernel"
110 #else // KERNEL
111 #ifdef TIERED
112 #define VMTYPE "Server"
113 #else // TIERED
114 #ifdef ZERO
115 #ifdef SHARK
116 #define VMTYPE "Shark"
117 #else // SHARK
118 #define VMTYPE "Zero"
119 #endif // SHARK
120 #else // ZERO
121 #define VMTYPE COMPILER1_PRESENT("Client") \
122 COMPILER2_PRESENT("Server")
123 #endif // ZERO
124 #endif // TIERED
125 #endif // KERNEL
126
127 #ifndef HOTSPOT_VM_DISTRO
128 #error HOTSPOT_VM_DISTRO must be defined
129 #endif
130 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
131
132 const char* Abstract_VM_Version::vm_name() {
133 return VMNAME;
134 }
135
136
137 const char* Abstract_VM_Version::vm_vendor() {
138 #ifdef VENDOR
139 return XSTR(VENDOR);
140 #else
141 return JDK_Version::is_gte_jdk17x_version() ?
142 "Oracle Corporation" : "Sun Microsystems Inc.";
143 #endif
144 }
145
146
147 const char* Abstract_VM_Version::vm_info_string() {
148 switch (Arguments::mode()) {
149 case Arguments::_int:
150 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
151 case Arguments::_mixed:
152 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
153 case Arguments::_comp:
154 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
155 };
156 ShouldNotReachHere();
157 return "";
158 }
159
160 // NOTE: do *not* use stringStream. this function is called by
161 // fatal error handler. if the crash is in native thread,
162 // stringStream cannot get resource allocated and will SEGV.
163 const char* Abstract_VM_Version::vm_release() {
164 return VM_RELEASE;
165 }
166
167 #define OS LINUX_ONLY("linux") \
168 WINDOWS_ONLY("windows") \
169 SOLARIS_ONLY("solaris")
170
171 #ifdef ZERO
172 #define CPU ZERO_LIBARCH
173 #else
174 #define CPU IA32_ONLY("x86") \
175 IA64_ONLY("ia64") \
176 AMD64_ONLY("amd64") \
177 ARM_ONLY("arm") \
178 PPC_ONLY("ppc") \
179 SPARC_ONLY("sparc")
180 #endif // ZERO
181
182 const char *Abstract_VM_Version::vm_platform_string() {
183 return OS "-" CPU;
184 }
185
186 const char* Abstract_VM_Version::internal_vm_info_string() {
187 #ifndef HOTSPOT_BUILD_USER
188 #define HOTSPOT_BUILD_USER unknown
189 #endif
190
191 #ifndef HOTSPOT_BUILD_COMPILER
192 #ifdef _MSC_VER
193 #if _MSC_VER == 1100
194 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
195 #elif _MSC_VER == 1200
196 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
197 #elif _MSC_VER == 1310
198 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
199 #elif _MSC_VER == 1400
200 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
201 #elif _MSC_VER == 1500
202 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
203 #else
204 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
205 #endif
206 #elif defined(__SUNPRO_CC)
207 #if __SUNPRO_CC == 0x420
208 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
209 #elif __SUNPRO_CC == 0x500
210 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
211 #elif __SUNPRO_CC == 0x520
212 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
213 #elif __SUNPRO_CC == 0x580
214 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
215 #elif __SUNPRO_CC == 0x590
216 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
217 #elif __SUNPRO_CC == 0x5100
218 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
219 #else
220 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
221 #endif
222 #elif defined(__GNUC__)
223 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
224 #else
225 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
226 #endif
227 #endif
228
229 #ifndef FLOAT_ARCH
230 #if defined(__SOFTFP__)
231 #define FLOAT_ARCH "-sflt"
232 #elif defined(E500V2)
233 #define FLOAT_ARCH "-e500v2"
234 #elif defined(ARM)
235 #define FLOAT_ARCH "-vfp"
236 #elif defined(PPC)
237 #define FLOAT_ARCH "-hflt"
238 #else
239 #define FLOAT_ARCH ""
240 #endif
241 #endif
242
243 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH
244 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
245 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
246 }
247
248 const char *Abstract_VM_Version::vm_build_user() {
249 return HOTSPOT_BUILD_USER;
250 }
251
252 unsigned int Abstract_VM_Version::jvm_version() {
253 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
254 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
255 (Abstract_VM_Version::vm_build_number() & 0xFF);
256 }
257
258
259 void VM_Version_init() {
260 VM_Version::initialize();
261
262 #ifndef PRODUCT
263 if (PrintMiscellaneous && Verbose) {
264 os::print_cpu_info(tty);
265 }
266 #endif
267 }
268
269 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
270 unsigned int num,
271 unsigned int den,
272 unsigned int switch_pt) {
273 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
274 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
275 // For very large machines, there are diminishing returns
276 // for large numbers of worker threads. Instead of
277 // hogging the whole system, use a fraction of the workers for every
278 // processor after the first 8. For example, on a 72 cpu machine
279 // and a chosen fraction of 5/8
280 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
281 unsigned int ncpus = (unsigned int) os::active_processor_count();
282 return (ncpus <= switch_pt) ?
283 ncpus :
284 (switch_pt + ((ncpus - switch_pt) * num) / den);
285 } else {
286 return ParallelGCThreads;
287 }
288 }
289
290 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
291 return nof_parallel_worker_threads(5, 8, 8);
292 }
293
294
295 // Does not set the _initialized flag since it is
296 // a global flag.
297 unsigned int Abstract_VM_Version::parallel_worker_threads() {
298 if (!_parallel_worker_threads_initialized) {
299 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
300 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
301 } else {
302 _parallel_worker_threads = ParallelGCThreads;
303 }
304 _parallel_worker_threads_initialized = true;
305 }
306 return _parallel_worker_threads;
307 }