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