1 /*
2 * Copyright (c) 1998, 2017, 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 #ifndef HOTSPOT_VERSION_STRING
48 #error HOTSPOT_VERSION_STRING must be defined
49 #endif
50
51 #ifndef VERSION_FEATURE
52 #error VERSION_FEATURE must be defined
53 #endif
54 #ifndef VERSION_INTERIM
55 #error VERSION_INTERIM must be defined
56 #endif
57 #ifndef VERSION_UPDATE
58 #error VERSION_UPDATE must be defined
59 #endif
60 #ifndef VERSION_PATCH
61 #error VERSION_PATCH must be defined
62 #endif
63 #ifndef VERSION_BUILD
64 #error VERSION_BUILD must be defined
65 #endif
66
67 #ifndef VERSION_STRING
68 #error VERSION_STRING must be defined
69 #endif
70
71 #ifndef DEBUG_LEVEL
72 #error DEBUG_LEVEL must be defined
73 #endif
74
75 #define VM_RELEASE HOTSPOT_VERSION_STRING
76
77 // HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden
78 // in a standalone build).
79 int Abstract_VM_Version::_vm_major_version = VERSION_FEATURE;
80 int Abstract_VM_Version::_vm_minor_version = VERSION_INTERIM;
81 int Abstract_VM_Version::_vm_security_version = VERSION_UPDATE;
82 int Abstract_VM_Version::_vm_patch_version = VERSION_PATCH;
83 int Abstract_VM_Version::_vm_build_number = VERSION_BUILD;
84 unsigned int Abstract_VM_Version::_parallel_worker_threads = 0;
85 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
86
87 #if defined(_LP64)
88 #define VMLP "64-Bit "
89 #else
90 #define VMLP ""
91 #endif
92
93 #ifndef VMTYPE
94 #ifdef TIERED
95 #define VMTYPE "Server"
96 #else // TIERED
97 #ifdef ZERO
98 #define VMTYPE "Zero"
99 #else // ZERO
100 #define VMTYPE COMPILER1_PRESENT("Client") \
101 COMPILER2_PRESENT("Server")
102 #endif // ZERO
103 #endif // TIERED
104 #endif
105
106 #ifndef HOTSPOT_VM_DISTRO
107 #error HOTSPOT_VM_DISTRO must be defined
108 #endif
109 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
110
111 const char* Abstract_VM_Version::vm_name() {
112 return VMNAME;
113 }
114
115
116 const char* Abstract_VM_Version::vm_vendor() {
117 #ifdef VENDOR
118 return XSTR(VENDOR);
119 #else
120 return "Oracle Corporation";
121 #endif
122 }
123
124
125 const char* Abstract_VM_Version::vm_info_string() {
126 switch (Arguments::mode()) {
127 case Arguments::_int:
128 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
129 case Arguments::_mixed:
130 if (UseSharedSpaces) {
131 if (UseAOT) {
132 return "mixed mode, aot, sharing";
133 #ifdef TIERED
134 } else if(is_client_compilation_mode_vm()) {
135 return "mixed mode, emulated-client, sharing";
136 #endif
137 } else {
138 return "mixed mode, sharing";
139 }
140 } else {
141 if (UseAOT) {
142 return "mixed mode, aot";
143 #ifdef TIERED
144 } else if(is_client_compilation_mode_vm()) {
145 return "mixed mode, emulated-client";
146 #endif
147 } else {
148 return "mixed mode";
149 }
150 }
151 case Arguments::_comp:
152 #ifdef TIERED
153 if (is_client_compilation_mode_vm()) {
154 return UseSharedSpaces ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client";
155 }
156 #endif
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 VERSION_STRING;
175 }
176
177 #define OS LINUX_ONLY("linux") \
178 WINDOWS_ONLY("windows") \
179 SOLARIS_ONLY("solaris") \
180 AIX_ONLY("aix") \
181 BSD_ONLY("bsd")
182
183 #ifndef CPU
184 #ifdef ZERO
185 #define CPU ZERO_LIBARCH
186 #elif defined(PPC64)
187 #if defined(VM_LITTLE_ENDIAN)
188 #define CPU "ppc64le"
189 #else
190 #define CPU "ppc64"
191 #endif // PPC64
192 #else
193 #define CPU AARCH64_ONLY("aarch64") \
194 AMD64_ONLY("amd64") \
195 IA32_ONLY("x86") \
196 IA64_ONLY("ia64") \
197 S390_ONLY("s390") \
198 SPARC_ONLY("sparc")
199 #endif // !ZERO
200 #endif // !CPU
201
202 const char *Abstract_VM_Version::vm_platform_string() {
203 return OS "-" CPU;
204 }
205
206 const char* Abstract_VM_Version::internal_vm_info_string() {
207 #ifndef HOTSPOT_BUILD_USER
208 #define HOTSPOT_BUILD_USER unknown
209 #endif
210
211 #ifndef HOTSPOT_BUILD_COMPILER
212 #ifdef _MSC_VER
213 #if _MSC_VER == 1600
214 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
215 #elif _MSC_VER == 1700
216 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
217 #elif _MSC_VER == 1800
218 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
219 #else
220 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
221 #endif
222 #elif defined(__SUNPRO_CC)
223 #if __SUNPRO_CC == 0x420
224 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
225 #elif __SUNPRO_CC == 0x500
226 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
227 #elif __SUNPRO_CC == 0x520
228 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
229 #elif __SUNPRO_CC == 0x580
230 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
231 #elif __SUNPRO_CC == 0x590
232 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
233 #elif __SUNPRO_CC == 0x5100
234 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
235 #elif __SUNPRO_CC == 0x5120
236 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
237 #elif __SUNPRO_CC == 0x5130
238 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4"
239 #else
240 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
241 #endif
242 #elif defined(__GNUC__)
243 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
244 #elif defined(__IBMCPP__)
245 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
246
247 #else
248 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
249 #endif
250 #endif
251
252 #ifndef FLOAT_ARCH
253 #if defined(__SOFTFP__)
254 #define FLOAT_ARCH_STR "-sflt"
255 #else
256 #define FLOAT_ARCH_STR ""
257 #endif
258 #else
259 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
260 #endif
261
262 #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
263 " for " OS "-" CPU FLOAT_ARCH_STR \
264 " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \
265 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER
266
267 return strcmp(DEBUG_LEVEL, "release") == 0
268 ? VMNAME " (" INTERNAL_VERSION_SUFFIX
269 : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX;
270 }
271
272 const char *Abstract_VM_Version::vm_build_user() {
273 return HOTSPOT_BUILD_USER;
274 }
275
276 const char *Abstract_VM_Version::jdk_debug_level() {
277 return DEBUG_LEVEL;
278 }
279
280 const char *Abstract_VM_Version::printable_jdk_debug_level() {
281 // Debug level is not printed for "release" builds
282 return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " ";
283 }
284
285 unsigned int Abstract_VM_Version::jvm_version() {
286 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
287 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
288 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) |
289 (Abstract_VM_Version::vm_build_number() & 0xFF);
290 }
291
292
293 void VM_Version_init() {
294 VM_Version::initialize();
295
296 if (log_is_enabled(Info, os, cpu)) {
297 char buf[1024];
298 ResourceMark rm;
299 LogStream ls(Log(os, cpu)::info());
300 os::print_cpu_info(&ls, buf, sizeof(buf));
301 }
302 }
303
304 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
305 unsigned int num,
306 unsigned int den,
307 unsigned int switch_pt) {
308 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
309 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
310 unsigned int threads;
311 // For very large machines, there are diminishing returns
312 // for large numbers of worker threads. Instead of
313 // hogging the whole system, use a fraction of the workers for every
314 // processor after the first 8. For example, on a 72 cpu machine
315 // and a chosen fraction of 5/8
316 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
317 unsigned int ncpus = (unsigned int) os::initial_active_processor_count();
318 threads = (ncpus <= switch_pt) ?
319 ncpus :
320 (switch_pt + ((ncpus - switch_pt) * num) / den);
321 #ifndef _LP64
322 // On 32-bit binaries the virtual address space available to the JVM
323 // is usually limited to 2-3 GB (depends on the platform).
324 // Do not use up address space with too many threads (stacks and per-thread
325 // data). Note that x86 apps running on Win64 have 2 stacks per thread.
326 // GC may more generally scale down threads by max heap size (etc), but the
327 // consequences of over-provisioning threads are higher on 32-bit JVMS,
328 // so add hard limit here:
329 threads = MIN2(threads, (2*switch_pt));
330 #endif
331 return threads;
332 } else {
333 return ParallelGCThreads;
334 }
335 }
336
337 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
338 return nof_parallel_worker_threads(5, 8, 8);
339 }
340
341
342 // Does not set the _initialized flag since it is
343 // a global flag.
344 unsigned int Abstract_VM_Version::parallel_worker_threads() {
345 if (!_parallel_worker_threads_initialized) {
346 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
347 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
348 } else {
349 _parallel_worker_threads = ParallelGCThreads;
350 }
351 _parallel_worker_threads_initialized = true;
352 }
353 return _parallel_worker_threads;
354 }