1 /*
2 * Copyright (c) 1998, 2016, 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_aarch64
33 # include "vm_version_aarch64.hpp"
34 #endif
35 #ifdef TARGET_ARCH_sparc
36 # include "vm_version_sparc.hpp"
37 #endif
38 #ifdef TARGET_ARCH_zero
39 # include "vm_version_zero.hpp"
40 #endif
41 #ifdef TARGET_ARCH_arm
42 # include "vm_version_arm.hpp"
43 #endif
44 #ifdef TARGET_ARCH_ppc
45 # include "vm_version_ppc.hpp"
46 #endif
47
48 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
49 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
50 bool Abstract_VM_Version::_supports_cx8 = false;
51 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
52 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
53 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
54 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
55 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
56 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
57 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
58
59 #ifndef HOTSPOT_RELEASE_VERSION
60 #error HOTSPOT_RELEASE_VERSION must be defined
61 #endif
62 #ifndef JRE_RELEASE_VERSION
63 #error JRE_RELEASE_VERSION must be defined
64 #endif
65 #ifndef HOTSPOT_BUILD_TARGET
66 #error HOTSPOT_BUILD_TARGET must be defined
67 #endif
68
69 #ifdef PRODUCT
70 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
71 #else
72 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
73 #endif
74
75 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
76 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
77 int Abstract_VM_Version::_vm_major_version = 0;
78 int Abstract_VM_Version::_vm_minor_version = 0;
79 int Abstract_VM_Version::_vm_build_number = 0;
80 bool Abstract_VM_Version::_initialized = false;
81 int Abstract_VM_Version::_parallel_worker_threads = 0;
82 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
83
84 void Abstract_VM_Version::initialize() {
85 if (_initialized) {
86 return;
87 }
88 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
89
90 // Expecting the next vm_version format:
91 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
92 char* vm_major_ver = vm_version;
93 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
94 char* vm_minor_ver = strchr(vm_major_ver, '.');
95 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
96 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
97 vm_minor_ver += 1;
98 char* vm_build_num = strchr(vm_minor_ver, '-');
99 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
100 vm_build_num[0] = '\0'; // terminate vm_minor_ver
101 vm_build_num += 2;
102
103 _vm_major_version = atoi(vm_major_ver);
104 _vm_minor_version = atoi(vm_minor_ver);
105 _vm_build_number = atoi(vm_build_num);
106
107 os::free(vm_version);
108 _initialized = true;
109 }
110
111 #if defined(_LP64)
112 #define VMLP "64-Bit "
113 #else
114 #define VMLP ""
115 #endif
116
117 #ifndef VMTYPE
118 #ifdef TIERED
119 #define VMTYPE "Server"
120 #else // TIERED
121 #ifdef ZERO
122 #ifdef SHARK
123 #define VMTYPE "Shark"
124 #else // SHARK
125 #define VMTYPE "Zero"
126 #endif // SHARK
127 #else // ZERO
128 #define VMTYPE COMPILER1_PRESENT("Client") \
129 COMPILER2_PRESENT("Server")
130 #endif // ZERO
131 #endif // TIERED
132 #endif
133
134 #ifndef HOTSPOT_VM_DISTRO
135 #error HOTSPOT_VM_DISTRO must be defined
136 #endif
137 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
138
139 const char* Abstract_VM_Version::vm_name() {
140 return VMNAME;
141 }
142
143
144 const char* Abstract_VM_Version::vm_vendor() {
145 #ifdef VENDOR
146 return VENDOR;
147 #else
148 return JDK_Version::is_gte_jdk17x_version() ?
149 "Oracle Corporation" : "Sun Microsystems Inc.";
150 #endif
151 }
152
153
154 const char* Abstract_VM_Version::vm_info_string() {
155 switch (Arguments::mode()) {
156 case Arguments::_int:
157 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
158 case Arguments::_mixed:
159 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
160 case Arguments::_comp:
161 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
162 };
163 ShouldNotReachHere();
164 return "";
165 }
166
167 // NOTE: do *not* use stringStream. this function is called by
168 // fatal error handler. if the crash is in native thread,
169 // stringStream cannot get resource allocated and will SEGV.
170 const char* Abstract_VM_Version::vm_release() {
171 return VM_RELEASE;
172 }
173
174 // NOTE: do *not* use stringStream. this function is called by
175 // fatal error handlers. if the crash is in native thread,
176 // stringStream cannot get resource allocated and will SEGV.
177 const char* Abstract_VM_Version::jre_release_version() {
178 return JRE_RELEASE_VERSION;
179 }
180
181 #define OS LINUX_ONLY("linux") \
182 WINDOWS_ONLY("windows") \
183 SOLARIS_ONLY("solaris") \
184 AIX_ONLY("aix") \
185 BSD_ONLY("bsd")
186
187 #ifndef CPU
188 #ifdef ZERO
189 #define CPU ZERO_LIBARCH
190 #elif defined(PPC64)
191 #if defined(VM_LITTLE_ENDIAN)
192 #define CPU "ppc64le"
193 #else
194 #define CPU "ppc64"
195 #endif
196 #else
197 #define CPU IA32_ONLY("x86") \
198 IA64_ONLY("ia64") \
199 AMD64_ONLY("amd64") \
200 AARCH64_ONLY("aarch64") \
201 SPARC_ONLY("sparc")
202 #endif // ZERO
203 #endif
204
205 const char *Abstract_VM_Version::vm_platform_string() {
206 return OS "-" CPU;
207 }
208
209 const char* Abstract_VM_Version::internal_vm_info_string() {
210 #ifndef HOTSPOT_BUILD_USER
211 #define HOTSPOT_BUILD_USER unknown
212 #endif
213
214 #ifndef HOTSPOT_BUILD_COMPILER
215 #ifdef _MSC_VER
216 #if _MSC_VER == 1100
217 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
218 #elif _MSC_VER == 1200
219 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
220 #elif _MSC_VER == 1310
221 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
222 #elif _MSC_VER == 1400
223 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
224 #elif _MSC_VER == 1500
225 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
226 #elif _MSC_VER == 1600
227 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
228 #elif _MSC_VER == 1700
229 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
230 #elif _MSC_VER == 1800
231 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
232 #elif _MSC_VER == 1900
233 #define HOTSPOT_BUILD_COMPILER "MS VC++ 14.0 (VS2015)"
234 #elif _MSC_VER == 1911
235 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.3 (VS2017)"
236 #elif _MSC_VER == 1912
237 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)"
238 #elif _MSC_VER == 1913
239 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.6 (VS2017)"
240 #elif _MSC_VER == 1914
241 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.7 (VS2017)"
242 #elif _MSC_VER == 1915
243 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.8 (VS2017)"
244 #elif _MSC_VER == 1916
245 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.9 (VS2017)"
246 #elif _MSC_VER == 1920
247 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.0 (VS2019)"
248 #elif _MSC_VER == 1921
249 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.1 (VS2019)"
250 #elif _MSC_VER == 1922
251 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.2 (VS2019)"
252 #elif _MSC_VER == 1923
253 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.3 (VS2019)"
254 #else
255 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
256 #endif
257 #elif defined(__SUNPRO_CC)
258 #if __SUNPRO_CC == 0x420
259 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
260 #elif __SUNPRO_CC == 0x500
261 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
262 #elif __SUNPRO_CC == 0x520
263 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
264 #elif __SUNPRO_CC == 0x580
265 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
266 #elif __SUNPRO_CC == 0x590
267 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
268 #elif __SUNPRO_CC == 0x5100
269 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
270 #elif __SUNPRO_CC == 0x5120
271 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
272 #else
273 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
274 #endif
275 #elif defined(__GNUC__)
276 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
277 #elif defined(__IBMCPP__)
278 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
279
280 #else
281 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
282 #endif
283 #endif
284
285 #ifndef FLOAT_ARCH
286 #if defined(__SOFTFP__)
287 #define FLOAT_ARCH_STR "-sflt"
288 #else
289 #define FLOAT_ARCH_STR ""
290 #endif
291 #else
292 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
293 #endif
294
295 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR
296 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
297 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
298 }
299
300 const char *Abstract_VM_Version::vm_build_user() {
301 return HOTSPOT_BUILD_USER;
302 }
303
304 unsigned int Abstract_VM_Version::jvm_version() {
305 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
306 ((Abstract_VM_Version::vm_minor_version() & 0xFFFF) << 8) |
307 (Abstract_VM_Version::vm_build_number() & 0xFF);
308 }
309
310
311 void VM_Version_init() {
312 VM_Version::initialize();
313
314 #ifndef PRODUCT
315 if (PrintMiscellaneous && Verbose) {
316 os::print_cpu_info(tty);
317 }
318 #endif
319 }
320
321 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
322 unsigned int num,
323 unsigned int den,
324 unsigned int switch_pt) {
325 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
326 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
327 // For very large machines, there are diminishing returns
328 // for large numbers of worker threads. Instead of
329 // hogging the whole system, use a fraction of the workers for every
330 // processor after the first 8. For example, on a 72 cpu machine
331 // and a chosen fraction of 5/8
332 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
333 unsigned int ncpus = (unsigned int) os::initial_active_processor_count();
334 return (ncpus <= switch_pt) ?
335 ncpus :
336 (switch_pt + ((ncpus - switch_pt) * num) / den);
337 } else {
338 return ParallelGCThreads;
339 }
340 }
341
342 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
343 return nof_parallel_worker_threads(5, 8, 8);
344 }
345
346
347 // Does not set the _initialized flag since it is
348 // a global flag.
349 unsigned int Abstract_VM_Version::parallel_worker_threads() {
350 if (!_parallel_worker_threads_initialized) {
351 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
352 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
353 } else {
354 _parallel_worker_threads = ParallelGCThreads;
355 }
356 _parallel_worker_threads_initialized = true;
357 }
358 return _parallel_worker_threads;
359 }