1 /*
2 * Copyright (c) 1998, 2019, 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 "logging/log.hpp"
27 #include "logging/logStream.hpp"
28 #include "memory/universe.hpp"
29 #include "oops/oop.inline.hpp"
30 #include "runtime/arguments.hpp"
31 #include "runtime/vm_version.hpp"
32
33 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
34 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
35
36 uint64_t Abstract_VM_Version::_features = 0;
37 const char* Abstract_VM_Version::_features_string = "";
38
39 bool Abstract_VM_Version::_supports_cx8 = false;
40 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
41 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
42 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
43 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
44 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
45 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
46
47 VirtualizationType Abstract_VM_Version::_detected_virtualization = NoDetectedVirtualization;
48
49 #ifndef HOTSPOT_VERSION_STRING
50 #error HOTSPOT_VERSION_STRING must be defined
51 #endif
52
53 #ifndef VERSION_FEATURE
54 #error VERSION_FEATURE must be defined
55 #endif
56 #ifndef VERSION_INTERIM
57 #error VERSION_INTERIM must be defined
58 #endif
59 #ifndef VERSION_UPDATE
60 #error VERSION_UPDATE must be defined
61 #endif
62 #ifndef VERSION_PATCH
63 #error VERSION_PATCH must be defined
64 #endif
65 #ifndef VERSION_BUILD
66 #error VERSION_BUILD must be defined
67 #endif
68
69 #ifndef VERSION_STRING
70 #error VERSION_STRING must be defined
71 #endif
72
73 #ifndef DEBUG_LEVEL
74 #error DEBUG_LEVEL must be defined
75 #endif
76
77 #define VM_RELEASE HOTSPOT_VERSION_STRING
78
79 // HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden
80 // in a standalone build).
81 int Abstract_VM_Version::_vm_major_version = VERSION_FEATURE;
82 int Abstract_VM_Version::_vm_minor_version = VERSION_INTERIM;
83 int Abstract_VM_Version::_vm_security_version = VERSION_UPDATE;
84 int Abstract_VM_Version::_vm_patch_version = VERSION_PATCH;
85 int Abstract_VM_Version::_vm_build_number = VERSION_BUILD;
86 unsigned int Abstract_VM_Version::_parallel_worker_threads = 0;
87 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
88
89 #if defined(_LP64)
90 #define VMLP "64-Bit "
91 #else
92 #define VMLP ""
93 #endif
94
95 #ifndef VMTYPE
96 #ifdef TIERED
97 #define VMTYPE "Server"
98 #else // TIERED
99 #ifdef ZERO
100 #define VMTYPE "Zero"
101 #else // ZERO
102 #define VMTYPE COMPILER1_PRESENT("Client") \
103 COMPILER2_PRESENT("Server")
104 #endif // ZERO
105 #endif // TIERED
106 #endif
107
108 #ifndef HOTSPOT_VM_DISTRO
109 #error HOTSPOT_VM_DISTRO must be defined
110 #endif
111 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
112
113 const char* Abstract_VM_Version::vm_name() {
114 return VMNAME;
115 }
116
117
118 const char* Abstract_VM_Version::vm_vendor() {
119 #ifdef VENDOR
120 return VENDOR;
121 #else
122 return "Oracle Corporation";
123 #endif
124 }
125
126
127 const char* Abstract_VM_Version::vm_info_string() {
128 switch (Arguments::mode()) {
129 case Arguments::_int:
130 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
131 case Arguments::_mixed:
132 if (UseSharedSpaces) {
133 if (UseAOT) {
134 return "mixed mode, aot, sharing";
135 #ifdef TIERED
136 } else if(is_client_compilation_mode_vm()) {
137 return "mixed mode, emulated-client, sharing";
138 #endif
139 } else {
140 return "mixed mode, sharing";
141 }
142 } else {
143 if (UseAOT) {
144 return "mixed mode, aot";
145 #ifdef TIERED
146 } else if(is_client_compilation_mode_vm()) {
147 return "mixed mode, emulated-client";
148 #endif
149 } else {
150 return "mixed mode";
151 }
152 }
153 case Arguments::_comp:
154 #ifdef TIERED
155 if (is_client_compilation_mode_vm()) {
156 return UseSharedSpaces ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client";
157 }
158 #endif
159 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
160 };
161 ShouldNotReachHere();
162 return "";
163 }
164
165 // NOTE: do *not* use stringStream. this function is called by
166 // fatal error handler. if the crash is in native thread,
167 // stringStream cannot get resource allocated and will SEGV.
168 const char* Abstract_VM_Version::vm_release() {
169 return VM_RELEASE;
170 }
171
172 // NOTE: do *not* use stringStream. this function is called by
173 // fatal error handlers. if the crash is in native thread,
174 // stringStream cannot get resource allocated and will SEGV.
175 const char* Abstract_VM_Version::jre_release_version() {
176 return VERSION_STRING;
177 }
178
179 #define OS LINUX_ONLY("linux") \
180 WINDOWS_ONLY("windows") \
181 SOLARIS_ONLY("solaris") \
182 AIX_ONLY("aix") \
183 BSD_ONLY("bsd")
184
185 #ifndef CPU
186 #ifdef ZERO
187 #define CPU ZERO_LIBARCH
188 #elif defined(PPC64)
189 #if defined(VM_LITTLE_ENDIAN)
190 #define CPU "ppc64le"
191 #else
192 #define CPU "ppc64"
193 #endif // PPC64
194 #else
195 #define CPU AARCH64_ONLY("aarch64") \
196 AMD64_ONLY("amd64") \
197 IA32_ONLY("x86") \
198 IA64_ONLY("ia64") \
199 S390_ONLY("s390") \
200 SPARC_ONLY("sparc")
201 #endif // !ZERO
202 #endif // !CPU
203
204 const char *Abstract_VM_Version::vm_platform_string() {
205 return OS "-" CPU;
206 }
207
208 const char* Abstract_VM_Version::internal_vm_info_string() {
209 #ifndef HOTSPOT_BUILD_USER
210 #define HOTSPOT_BUILD_USER unknown
211 #endif
212
213 #ifndef HOTSPOT_BUILD_COMPILER
214 #ifdef _MSC_VER
215 #if _MSC_VER == 1600
216 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
217 #elif _MSC_VER == 1700
218 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
219 #elif _MSC_VER == 1800
220 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
221 #elif _MSC_VER == 1900
222 #define HOTSPOT_BUILD_COMPILER "MS VC++ 14.0 (VS2015)"
223 #elif _MSC_VER == 1911
224 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.3 (VS2017)"
225 #elif _MSC_VER == 1912
226 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)"
227 #elif _MSC_VER == 1913
228 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.6 (VS2017)"
229 #elif _MSC_VER == 1914
230 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.7 (VS2017)"
231 #elif _MSC_VER == 1915
232 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.8 (VS2017)"
233 #elif _MSC_VER == 1916
234 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.9 (VS2017)"
235 #elif _MSC_VER == 1920
236 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.0 (VS2019)"
237 #elif _MSC_VER == 1921
238 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.1 (VS2019)"
239 #elif _MSC_VER == 1922
240 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.2 (VS2019)"
241 #elif _MSC_VER == 1923
242 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.3 (VS2019)"
243 #else
244 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
245 #endif
246 #elif defined(__SUNPRO_CC)
247 #if __SUNPRO_CC == 0x420
248 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
249 #elif __SUNPRO_CC == 0x500
250 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
251 #elif __SUNPRO_CC == 0x520
252 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
253 #elif __SUNPRO_CC == 0x580
254 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
255 #elif __SUNPRO_CC == 0x590
256 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
257 #elif __SUNPRO_CC == 0x5100
258 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
259 #elif __SUNPRO_CC == 0x5120
260 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
261 #elif __SUNPRO_CC == 0x5130
262 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4"
263 #else
264 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
265 #endif
266 #elif defined(__GNUC__)
267 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
268 #elif defined(__IBMCPP__)
269 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
270
271 #else
272 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
273 #endif
274 #endif
275
276 #ifndef FLOAT_ARCH
277 #if defined(__SOFTFP__)
278 #define FLOAT_ARCH_STR "-sflt"
279 #else
280 #define FLOAT_ARCH_STR ""
281 #endif
282 #else
283 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
284 #endif
285
286 #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
287 " for " OS "-" CPU FLOAT_ARCH_STR \
288 " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \
289 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER
290
291 return strcmp(DEBUG_LEVEL, "release") == 0
292 ? VMNAME " (" INTERNAL_VERSION_SUFFIX
293 : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX;
294 }
295
296 const char *Abstract_VM_Version::vm_build_user() {
297 return HOTSPOT_BUILD_USER;
298 }
299
300 const char *Abstract_VM_Version::jdk_debug_level() {
301 return DEBUG_LEVEL;
302 }
303
304 const char *Abstract_VM_Version::printable_jdk_debug_level() {
305 // Debug level is not printed for "release" builds
306 return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " ";
307 }
308
309 unsigned int Abstract_VM_Version::jvm_version() {
310 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
311 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
312 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) |
313 (Abstract_VM_Version::vm_build_number() & 0xFF);
314 }
315
316 void VM_Version_init() {
317 VM_Version::initialize();
318
319 if (log_is_enabled(Info, os, cpu)) {
320 char buf[1024];
321 ResourceMark rm;
322 LogStream ls(Log(os, cpu)::info());
323 os::print_cpu_info(&ls, buf, sizeof(buf));
324 }
325 }
326
327 bool Abstract_VM_Version::print_matching_lines_from_file(const char* filename, outputStream* st, const char* keywords_to_match[]) {
328 char line[500];
329 FILE* fp = fopen(filename, "r");
330 if (fp == NULL) {
331 return false;
332 }
333
334 st->print_cr("Virtualization information:");
335 while (fgets(line, sizeof(line), fp) != NULL) {
336 int i = 0;
337 while (keywords_to_match[i] != NULL) {
338 if (strncmp(line, keywords_to_match[i], strlen(keywords_to_match[i])) == 0) {
339 st->print("%s", line);
340 break;
341 }
342 i++;
343 }
344 }
345 fclose(fp);
346 return true;
347 }
348
349
350
351 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
352 unsigned int num,
353 unsigned int den,
354 unsigned int switch_pt) {
355 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
356 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
357 unsigned int threads;
358 // For very large machines, there are diminishing returns
359 // for large numbers of worker threads. Instead of
360 // hogging the whole system, use a fraction of the workers for every
361 // processor after the first 8. For example, on a 72 cpu machine
362 // and a chosen fraction of 5/8
363 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
364 unsigned int ncpus = (unsigned int) os::initial_active_processor_count();
365 threads = (ncpus <= switch_pt) ?
366 ncpus :
367 (switch_pt + ((ncpus - switch_pt) * num) / den);
368 #ifndef _LP64
369 // On 32-bit binaries the virtual address space available to the JVM
370 // is usually limited to 2-3 GB (depends on the platform).
371 // Do not use up address space with too many threads (stacks and per-thread
372 // data). Note that x86 apps running on Win64 have 2 stacks per thread.
373 // GC may more generally scale down threads by max heap size (etc), but the
374 // consequences of over-provisioning threads are higher on 32-bit JVMS,
375 // so add hard limit here:
376 threads = MIN2(threads, (2*switch_pt));
377 #endif
378 return threads;
379 } else {
380 return ParallelGCThreads;
381 }
382 }
383
384 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
385 return nof_parallel_worker_threads(5, 8, 8);
386 }
387
388
389 // Does not set the _initialized flag since it is
390 // a global flag.
391 unsigned int Abstract_VM_Version::parallel_worker_threads() {
392 if (!_parallel_worker_threads_initialized) {
393 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
394 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
395 } else {
396 _parallel_worker_threads = ParallelGCThreads;
397 }
398 _parallel_worker_threads_initialized = true;
399 }
400 return _parallel_worker_threads;
401 }