1 /*
2 * Copyright (c) 1998, 2025, 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 "cds/cdsConfig.hpp"
26 #include "compiler/compilerDefinitions.hpp"
27 #include "jvm_io.h"
28 #include "runtime/arguments.hpp"
29 #include "runtime/vm_version.hpp"
30 #include "utilities/globalDefinitions.hpp"
31
32 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
33 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
34
35 uint64_t Abstract_VM_Version::_features = 0;
36 const char* Abstract_VM_Version::_features_string = "";
37 const char* Abstract_VM_Version::_cpu_info_string = "";
38 uint64_t Abstract_VM_Version::_cpu_features = 0;
39
40 #ifndef SUPPORTS_NATIVE_CX8
41 bool Abstract_VM_Version::_supports_cx8 = false;
42 #endif
43 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
44 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
45 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
46 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
47 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
48 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
49 unsigned int Abstract_VM_Version::_data_cache_line_flush_size = 0;
50
51 VirtualizationType Abstract_VM_Version::_detected_virtualization = NoDetectedVirtualization;
52
53 #ifndef HOTSPOT_VERSION_STRING
54 #error HOTSPOT_VERSION_STRING must be defined
55 #endif
56
57 #ifndef VERSION_FEATURE
58 #error VERSION_FEATURE must be defined
59 #endif
60 #ifndef VERSION_INTERIM
61 #error VERSION_INTERIM must be defined
62 #endif
63 #ifndef VERSION_UPDATE
64 #error VERSION_UPDATE must be defined
65 #endif
66 #ifndef VERSION_PATCH
67 #error VERSION_PATCH must be defined
68 #endif
69 #ifndef VERSION_BUILD
70 #error VERSION_BUILD must be defined
71 #endif
72
73 #ifndef VERSION_STRING
74 #error VERSION_STRING must be defined
75 #endif
76
77 #ifndef DEBUG_LEVEL
78 #error DEBUG_LEVEL must be defined
79 #endif
80
81 #ifndef HOTSPOT_BUILD_TIME
82 #error HOTSPOT_BUILD_TIME must be defined
83 #endif
84
85 #ifndef JVM_VARIANT
86 #error JVM_VARIANT must be defined
87 #endif
88
89 #define VM_RELEASE HOTSPOT_VERSION_STRING
90
91 // HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden
92 // in a standalone build).
93 int Abstract_VM_Version::_vm_major_version = VERSION_FEATURE;
94 int Abstract_VM_Version::_vm_minor_version = VERSION_INTERIM;
95 int Abstract_VM_Version::_vm_security_version = VERSION_UPDATE;
96 int Abstract_VM_Version::_vm_patch_version = VERSION_PATCH;
97 int Abstract_VM_Version::_vm_build_number = VERSION_BUILD;
98
99 #if defined(_LP64)
100 #define VMLP "64-Bit "
101 #else
102 #define VMLP ""
103 #endif
104
105 #ifndef VMTYPE
106 #if COMPILER1_AND_COMPILER2
107 #define VMTYPE "Server"
108 #else // COMPILER1_AND_COMPILER2
109 #ifdef ZERO
110 #define VMTYPE "Zero"
111 #else // ZERO
112 #define VMTYPE COMPILER1_PRESENT("Client") \
113 COMPILER2_PRESENT("Server")
114 #endif // ZERO
115 #endif // COMPILER1_AND_COMPILER2
116 #endif
117
118 #ifndef HOTSPOT_VM_DISTRO
119 #error HOTSPOT_VM_DISTRO must be defined
120 #endif
121 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
122
123 const char* Abstract_VM_Version::vm_name() {
124 return VMNAME;
125 }
126
127 #ifndef VENDOR_PADDING
128 # define VENDOR_PADDING 64
129 #endif
130 #ifndef VENDOR
131 # define VENDOR "Oracle Corporation"
132 #endif
133
134 static const char vm_vendor_string[sizeof(VENDOR) < VENDOR_PADDING ? VENDOR_PADDING : sizeof(VENDOR)] = VENDOR;
135
136 const char* Abstract_VM_Version::vm_vendor() {
137 return vm_vendor_string;
138 }
139
140
141 // The VM info string should be a constant, but its value cannot be finalized until after VM arguments
142 // have been fully processed. And we want to avoid dynamic memory allocation which will cause ASAN
143 // report error, so we enumerate all the cases by static const string value.
144 const char* Abstract_VM_Version::vm_info_string() {
145 switch (Arguments::mode()) {
146 case Arguments::_int:
147 if (is_vm_statically_linked()) {
148 return CDSConfig::is_using_archive() ? "interpreted mode, static, sharing" : "interpreted mode, static";
149 } else {
150 return CDSConfig::is_using_archive() ? "interpreted mode, sharing" : "interpreted mode";
151 }
152 case Arguments::_mixed:
153 if (is_vm_statically_linked()) {
154 if (CompilationModeFlag::quick_only()) {
155 return CDSConfig::is_using_archive() ? "mixed mode, emulated-client, static, sharing" : "mixed mode, emulated-client, static";
156 } else {
157 return CDSConfig::is_using_archive() ? "mixed mode, static, sharing" : "mixed mode, static";
158 }
159 } else {
160 if (CompilationModeFlag::quick_only()) {
161 return CDSConfig::is_using_archive() ? "mixed mode, emulated-client, sharing" : "mixed mode, emulated-client";
162 } else {
163 return CDSConfig::is_using_archive() ? "mixed mode, sharing" : "mixed mode";
164 }
165 }
166 case Arguments::_comp:
167 if (is_vm_statically_linked()) {
168 if (CompilationModeFlag::quick_only()) {
169 return CDSConfig::is_using_archive() ? "compiled mode, emulated-client, static, sharing" : "compiled mode, emulated-client, static";
170 }
171 return CDSConfig::is_using_archive() ? "compiled mode, static, sharing" : "compiled mode, static";
172 } else {
173 if (CompilationModeFlag::quick_only()) {
174 return CDSConfig::is_using_archive() ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client";
175 }
176 return CDSConfig::is_using_archive() ? "compiled mode, sharing" : "compiled mode";
177 }
178 }
179 ShouldNotReachHere();
180 return "";
181 }
182
183 // NOTE: do *not* use stringStream. this function is called by
184 // fatal error handler. if the crash is in native thread,
185 // stringStream cannot get resource allocated and will SEGV.
186 const char* Abstract_VM_Version::vm_release() {
187 return VM_RELEASE;
188 }
189
190 #define OS LINUX_ONLY("linux") \
191 WINDOWS_ONLY("windows") \
192 AIX_ONLY("aix") \
193 BSD_ONLY("bsd")
194
195 #ifndef CPU
196 #ifdef ZERO
197 #define CPU ZERO_LIBARCH
198 #elif defined(PPC64)
199 #if defined(VM_LITTLE_ENDIAN)
200 #define CPU "ppc64le"
201 #else
202 #define CPU "ppc64"
203 #endif // PPC64
204 #else
205 #define CPU AARCH64_ONLY("aarch64") \
206 AMD64_ONLY("amd64") \
207 IA32_ONLY("x86") \
208 S390_ONLY("s390") \
209 RISCV64_ONLY("riscv64")
210 #endif // !ZERO
211 #endif // !CPU
212
213 const char *Abstract_VM_Version::vm_platform_string() {
214 return OS "-" CPU;
215 }
216
217 const char* Abstract_VM_Version::vm_variant() {
218 return JVM_VARIANT;
219 }
220
221 const char* Abstract_VM_Version::internal_vm_info_string() {
222 #ifndef HOTSPOT_BUILD_COMPILER
223 #ifdef _MSC_VER
224 #if _MSC_VER == 1911
225 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.3 (VS2017)"
226 #elif _MSC_VER == 1912
227 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.5 (VS2017)"
228 #elif _MSC_VER == 1913
229 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.6 (VS2017)"
230 #elif _MSC_VER == 1914
231 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.7 (VS2017)"
232 #elif _MSC_VER == 1915
233 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.8 (VS2017)"
234 #elif _MSC_VER == 1916
235 #define HOTSPOT_BUILD_COMPILER "MS VC++ 15.9 (VS2017)"
236 #elif _MSC_VER == 1920
237 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.0 (VS2019)"
238 #elif _MSC_VER == 1921
239 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.1 (VS2019)"
240 #elif _MSC_VER == 1922
241 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.2 (VS2019)"
242 #elif _MSC_VER == 1923
243 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.3 (VS2019)"
244 #elif _MSC_VER == 1924
245 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.4 (VS2019)"
246 #elif _MSC_VER == 1925
247 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.5 (VS2019)"
248 #elif _MSC_VER == 1926
249 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.6 (VS2019)"
250 #elif _MSC_VER == 1927
251 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.7 (VS2019)"
252 #elif _MSC_VER == 1928
253 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.8 / 16.9 (VS2019)"
254 #elif _MSC_VER == 1929
255 #define HOTSPOT_BUILD_COMPILER "MS VC++ 16.10 / 16.11 (VS2019)"
256 #elif _MSC_VER == 1930
257 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.0 (VS2022)"
258 #elif _MSC_VER == 1931
259 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.1 (VS2022)"
260 #elif _MSC_VER == 1932
261 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.2 (VS2022)"
262 #elif _MSC_VER == 1933
263 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.3 (VS2022)"
264 #elif _MSC_VER == 1934
265 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.4 (VS2022)"
266 #elif _MSC_VER == 1935
267 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.5 (VS2022)"
268 #elif _MSC_VER == 1936
269 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.6 (VS2022)"
270 #elif _MSC_VER == 1937
271 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.7 (VS2022)"
272 #elif _MSC_VER == 1938
273 #define HOTSPOT_BUILD_COMPILER "MS VC++ 17.8 (VS2022)"
274 #else
275 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
276 #endif
277 #elif defined(__clang_version__)
278 #define HOTSPOT_BUILD_COMPILER "clang " __VERSION__
279 #elif defined(__GNUC__)
280 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
281 #else
282 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
283 #endif
284 #endif
285
286 #ifndef FLOAT_ARCH
287 #if defined(__SOFTFP__)
288 #define FLOAT_ARCH_STR "-sflt"
289 #else
290 #define FLOAT_ARCH_STR ""
291 #endif
292 #else
293 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
294 #endif
295
296 #ifdef MUSL_LIBC
297 #define LIBC_STR "-" XSTR(LIBC)
298 #else
299 #define LIBC_STR ""
300 #endif
301
302 #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
303 " for " OS "-" CPU FLOAT_ARCH_STR LIBC_STR \
304 " JRE (" VERSION_STRING "), built on " HOTSPOT_BUILD_TIME \
305 " with " HOTSPOT_BUILD_COMPILER
306
307 return strcmp(DEBUG_LEVEL, "release") == 0
308 ? VMNAME " (" INTERNAL_VERSION_SUFFIX
309 : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX;
310 }
311
312 const char *Abstract_VM_Version::jdk_debug_level() {
313 return DEBUG_LEVEL;
314 }
315
316 const char *Abstract_VM_Version::printable_jdk_debug_level() {
317 // Debug level is not printed for "release" builds
318 return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " ";
319 }
320
321 unsigned int Abstract_VM_Version::jvm_version() {
322 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
323 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
324 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) |
325 (Abstract_VM_Version::vm_build_number() & 0xFF);
326 }
327
328 const char* Abstract_VM_Version::extract_features_string(const char* cpu_info_string,
329 size_t cpu_info_string_len,
330 size_t features_offset) {
331 assert(features_offset <= cpu_info_string_len, "");
332 if (features_offset < cpu_info_string_len) {
333 assert(cpu_info_string[features_offset + 0] == ',', "");
334 assert(cpu_info_string[features_offset + 1] == ' ', "");
335 return cpu_info_string + features_offset + 2; // skip initial ", "
336 } else {
337 return ""; // empty
338 }
339 }
340
341 bool Abstract_VM_Version::print_matching_lines_from_file(const char* filename, outputStream* st, const char* keywords_to_match[]) {
342 char line[500];
343 FILE* fp = os::fopen(filename, "r");
344 if (fp == nullptr) {
345 return false;
346 }
347
348 st->print_cr("Virtualization information:");
349 while (fgets(line, sizeof(line), fp) != nullptr) {
350 int i = 0;
351 while (keywords_to_match[i] != nullptr) {
352 if (strncmp(line, keywords_to_match[i], strlen(keywords_to_match[i])) == 0) {
353 st->print("%s", line);
354 break;
355 }
356 i++;
357 }
358 }
359 fclose(fp);
360 return true;
361 }
362
363 // Abstract_VM_Version statics
364 int Abstract_VM_Version::_no_of_threads = 0;
365 int Abstract_VM_Version::_no_of_cores = 0;
366 int Abstract_VM_Version::_no_of_sockets = 0;
367 bool Abstract_VM_Version::_initialized = false;
368 char Abstract_VM_Version::_cpu_name[CPU_TYPE_DESC_BUF_SIZE] = {0};
369 char Abstract_VM_Version::_cpu_desc[CPU_DETAILED_DESC_BUF_SIZE] = {0};
370
371 int Abstract_VM_Version::number_of_threads(void) {
372 assert(_initialized, "should be initialized");
373 return _no_of_threads;
374 }
375
376 int Abstract_VM_Version::number_of_cores(void) {
377 assert(_initialized, "should be initialized");
378 return _no_of_cores;
379 }
380
381 int Abstract_VM_Version::number_of_sockets(void) {
382 assert(_initialized, "should be initialized");
383 return _no_of_sockets;
384 }
385
386 const char* Abstract_VM_Version::cpu_name(void) {
387 assert(_initialized, "should be initialized");
388 char* tmp = NEW_C_HEAP_ARRAY_RETURN_NULL(char, CPU_TYPE_DESC_BUF_SIZE, mtTracing);
389 if (nullptr == tmp) {
390 return nullptr;
391 }
392 strncpy(tmp, _cpu_name, CPU_TYPE_DESC_BUF_SIZE);
393 return tmp;
394 }
395
396 const char* Abstract_VM_Version::cpu_description(void) {
397 assert(_initialized, "should be initialized");
398 char* tmp = NEW_C_HEAP_ARRAY_RETURN_NULL(char, CPU_DETAILED_DESC_BUF_SIZE, mtTracing);
399 if (nullptr == tmp) {
400 return nullptr;
401 }
402 strncpy(tmp, _cpu_desc, CPU_DETAILED_DESC_BUF_SIZE);
403 return tmp;
404 }