1 /*
2 * Copyright (c) 1998, 2012, 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 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
50
51 #ifndef HOTSPOT_RELEASE_VERSION
52 #error HOTSPOT_RELEASE_VERSION must be defined
53 #endif
54 #ifndef JRE_RELEASE_VERSION
55 #error JRE_RELEASE_VERSION must be defined
56 #endif
57 #ifndef HOTSPOT_BUILD_TARGET
58 #error HOTSPOT_BUILD_TARGET must be defined
59 #endif
60
61 #ifdef PRODUCT
62 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
63 #else
64 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
65 #endif
66
67 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
68 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
69 int Abstract_VM_Version::_vm_major_version = 0;
70 int Abstract_VM_Version::_vm_minor_version = 0;
71 int Abstract_VM_Version::_vm_build_number = 0;
72 bool Abstract_VM_Version::_initialized = false;
73 int Abstract_VM_Version::_parallel_worker_threads = 0;
74 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
75
76 void Abstract_VM_Version::initialize() {
77 if (_initialized) {
78 return;
79 }
80 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
81
82 // Expecting the next vm_version format:
83 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
84 char* vm_major_ver = vm_version;
85 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
86 char* vm_minor_ver = strchr(vm_major_ver, '.');
87 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
88 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
89 vm_minor_ver += 1;
90 char* vm_build_num = strchr(vm_minor_ver, '-');
91 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
92 vm_build_num[0] = '\0'; // terminate vm_minor_ver
93 vm_build_num += 2;
94
95 _vm_major_version = atoi(vm_major_ver);
96 _vm_minor_version = atoi(vm_minor_ver);
97 _vm_build_number = atoi(vm_build_num);
98
99 os::free(vm_version);
100 _initialized = true;
101 }
102
103 #if defined(_LP64)
104 #define VMLP "64-Bit "
105 #else
106 #define VMLP ""
107 #endif
108
109 #ifndef VMTYPE
110 #ifdef KERNEL
111 #define VMTYPE "Kernel"
112 #else // KERNEL
113 #ifdef TIERED
114 #define VMTYPE "Server"
115 #else // TIERED
116 #ifdef ZERO
117 #ifdef SHARK
118 #define VMTYPE "Shark"
119 #else // SHARK
120 #define VMTYPE "Zero"
121 #endif // SHARK
122 #else // ZERO
123 #define VMTYPE COMPILER1_PRESENT("Client") \
124 COMPILER2_PRESENT("Server")
125 #endif // ZERO
126 #endif // TIERED
127 #endif // KERNEL
128 #endif
129
130 #ifndef HOTSPOT_VM_DISTRO
131 #error HOTSPOT_VM_DISTRO must be defined
132 #endif
133 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
134
135 const char* Abstract_VM_Version::vm_name() {
136 return VMNAME;
137 }
138
139
140 const char* Abstract_VM_Version::vm_vendor() {
141 #ifdef VENDOR
142 return XSTR(VENDOR);
143 #else
144 return JDK_Version::is_gte_jdk17x_version() ?
145 "Oracle Corporation" : "Sun Microsystems Inc.";
146 #endif
147 }
148
149
150 const char* Abstract_VM_Version::vm_info_string() {
151 switch (Arguments::mode()) {
152 case Arguments::_int:
153 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
154 case Arguments::_mixed:
155 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
156 case Arguments::_comp:
157 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
158 };
159 ShouldNotReachHere();
160 return "";
161 }
162
163 // NOTE: do *not* use stringStream. this function is called by
164 // fatal error handler. if the crash is in native thread,
165 // stringStream cannot get resource allocated and will SEGV.
166 const char* Abstract_VM_Version::vm_release() {
167 return VM_RELEASE;
168 }
169
170 // NOTE: do *not* use stringStream. this function is called by
171 // fatal error handlers. if the crash is in native thread,
172 // stringStream cannot get resource allocated and will SEGV.
173 const char* Abstract_VM_Version::jre_release_version() {
174 return JRE_RELEASE_VERSION;
175 }
176
177 #define OS LINUX_ONLY("linux") \
178 WINDOWS_ONLY("windows") \
179 SOLARIS_ONLY("solaris") \
180 BSD_ONLY("bsd")
181
182 #ifdef ZERO
183 #define CPU ZERO_LIBARCH
184 #else
185 #define CPU IA32_ONLY("x86") \
186 IA64_ONLY("ia64") \
187 AMD64_ONLY("amd64") \
188 ARM_ONLY("arm") \
189 PPC_ONLY("ppc") \
190 SPARC_ONLY("sparc")
191 #endif // ZERO
192
193 const char *Abstract_VM_Version::vm_platform_string() {
194 return OS "-" CPU;
195 }
196
197 const char* Abstract_VM_Version::internal_vm_info_string() {
198 #ifndef HOTSPOT_BUILD_USER
199 #define HOTSPOT_BUILD_USER unknown
200 #endif
201
202 #ifndef HOTSPOT_BUILD_COMPILER
203 #ifdef _MSC_VER
204 #if _MSC_VER == 1100
205 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
206 #elif _MSC_VER == 1200
207 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
208 #elif _MSC_VER == 1310
209 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
210 #elif _MSC_VER == 1400
211 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
212 #elif _MSC_VER == 1500
213 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
214 #else
215 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
216 #endif
217 #elif defined(__SUNPRO_CC)
218 #if __SUNPRO_CC == 0x420
219 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
220 #elif __SUNPRO_CC == 0x500
221 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
222 #elif __SUNPRO_CC == 0x520
223 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
224 #elif __SUNPRO_CC == 0x580
225 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
226 #elif __SUNPRO_CC == 0x590
227 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
228 #elif __SUNPRO_CC == 0x5100
229 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
230 #else
231 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
232 #endif
233 #elif defined(__GNUC__)
234 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
235 #else
236 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
237 #endif
238 #endif
239
240 #ifndef FLOAT_ARCH
241 #if defined(__SOFTFP__)
242 #define FLOAT_ARCH "-sflt"
243 #elif defined(E500V2)
244 #define FLOAT_ARCH "-e500v2"
245 #elif defined(ARM)
246 #define FLOAT_ARCH "-vfp"
247 #elif defined(PPC)
248 #define FLOAT_ARCH "-hflt"
249 #else
250 #define FLOAT_ARCH ""
251 #endif
252 #endif
253
254 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH
255 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
256 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
257 }
258
259 const char *Abstract_VM_Version::vm_build_user() {
260 return HOTSPOT_BUILD_USER;
261 }
262
263 unsigned int Abstract_VM_Version::jvm_version() {
264 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
265 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
266 (Abstract_VM_Version::vm_build_number() & 0xFF);
267 }
268
269
270 void VM_Version_init() {
271 VM_Version::initialize();
272
273 #ifndef PRODUCT
274 if (PrintMiscellaneous && Verbose) {
275 os::print_cpu_info(tty);
276 }
277 #endif
278 }
279
280 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
281 unsigned int num,
282 unsigned int den,
283 unsigned int switch_pt) {
284 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
285 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
286 // For very large machines, there are diminishing returns
287 // for large numbers of worker threads. Instead of
288 // hogging the whole system, use a fraction of the workers for every
289 // processor after the first 8. For example, on a 72 cpu machine
290 // and a chosen fraction of 5/8
291 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
292 unsigned int ncpus = (unsigned int) os::active_processor_count();
293 return (ncpus <= switch_pt) ?
294 ncpus :
295 (switch_pt + ((ncpus - switch_pt) * num) / den);
296 } else {
297 return ParallelGCThreads;
298 }
299 }
300
301 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
302 return nof_parallel_worker_threads(5, 8, 8);
303 }
304
305
306 // Does not set the _initialized flag since it is
307 // a global flag.
308 unsigned int Abstract_VM_Version::parallel_worker_threads() {
309 if (!_parallel_worker_threads_initialized) {
310 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
311 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
312 } else {
313 _parallel_worker_threads = ParallelGCThreads;
314 }
315 _parallel_worker_threads_initialized = true;
316 }
317 return _parallel_worker_threads;
318 }