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 #ifdef TIERED
137 } else if(is_client_compilation_mode_vm()) {
138 return "mixed mode, emulated-client, sharing";
139 #endif
140 } else {
141 return "mixed mode, sharing";
142 }
143 } else {
144 if (UseAOT) {
145 return "mixed mode, aot";
146 #ifdef TIERED
147 } else if(is_client_compilation_mode_vm()) {
148 return "mixed mode, emulated-client";
149 #endif
150 } else {
151 return "mixed mode";
152 }
153 }
154 case Arguments::_comp:
155 #ifdef TIERED
156 if (is_client_compilation_mode_vm()) {
157 return UseSharedSpaces ? "compiled mode, emulated-client, sharing" : "compiled mode, emulated-client";
158 }
159 #endif
160 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
161 };
162 ShouldNotReachHere();
163 return "";
164 }
165
166 // NOTE: do *not* use stringStream. this function is called by
167 // fatal error handler. if the crash is in native thread,
168 // stringStream cannot get resource allocated and will SEGV.
169 const char* Abstract_VM_Version::vm_release() {
170 return VM_RELEASE;
171 }
172
173 // NOTE: do *not* use stringStream. this function is called by
174 // fatal error handlers. if the crash is in native thread,
175 // stringStream cannot get resource allocated and will SEGV.
176 const char* Abstract_VM_Version::jre_release_version() {
177 return VERSION_STRING;
178 }
179
180 #define OS LINUX_ONLY("linux") \
181 WINDOWS_ONLY("windows") \
182 SOLARIS_ONLY("solaris") \
183 AIX_ONLY("aix") \
184 BSD_ONLY("bsd")
185
186 #ifndef CPU
187 #ifdef ZERO
188 #define CPU ZERO_LIBARCH
189 #elif defined(PPC64)
190 #if defined(VM_LITTLE_ENDIAN)
191 #define CPU "ppc64le"
192 #else
193 #define CPU "ppc64"
194 #endif // PPC64
195 #else
196 #define CPU AARCH64_ONLY("aarch64") \
197 AMD64_ONLY("amd64") \
198 IA32_ONLY("x86") \
199 IA64_ONLY("ia64") \
200 S390_ONLY("s390") \
201 SPARC_ONLY("sparc")
202 #endif // !ZERO
203 #endif // !CPU
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 == 1600
217 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
218 #elif _MSC_VER == 1700
219 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
220 #elif _MSC_VER == 1800
221 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
222 #else
223 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
224 #endif
225 #elif defined(__SUNPRO_CC)
226 #if __SUNPRO_CC == 0x420
227 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
228 #elif __SUNPRO_CC == 0x500
229 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
230 #elif __SUNPRO_CC == 0x520
231 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
232 #elif __SUNPRO_CC == 0x580
233 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
234 #elif __SUNPRO_CC == 0x590
235 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
236 #elif __SUNPRO_CC == 0x5100
237 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
238 #elif __SUNPRO_CC == 0x5120
239 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
240 #elif __SUNPRO_CC == 0x5130
241 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u4"
242 #else
243 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
244 #endif
245 #elif defined(__GNUC__)
246 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
247 #elif defined(__IBMCPP__)
248 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
249
250 #else
251 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
252 #endif
253 #endif
254
255 #ifndef FLOAT_ARCH
256 #if defined(__SOFTFP__)
257 #define FLOAT_ARCH_STR "-sflt"
258 #else
259 #define FLOAT_ARCH_STR ""
260 #endif
261 #else
262 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
263 #endif
264
265 #define INTERNAL_VERSION_SUFFIX VM_RELEASE ")" \
266 " for " OS "-" CPU FLOAT_ARCH_STR \
267 " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__ \
268 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER
269
270 return strcmp(DEBUG_LEVEL, "release") == 0
271 ? VMNAME " (" INTERNAL_VERSION_SUFFIX
272 : VMNAME " (" DEBUG_LEVEL " " INTERNAL_VERSION_SUFFIX;
273 }
274
275 const char *Abstract_VM_Version::vm_build_user() {
276 return HOTSPOT_BUILD_USER;
277 }
278
279 const char *Abstract_VM_Version::jdk_debug_level() {
280 return DEBUG_LEVEL;
281 }
282
283 const char *Abstract_VM_Version::printable_jdk_debug_level() {
284 // Debug level is not printed for "release" builds
285 return strcmp(DEBUG_LEVEL, "release") == 0 ? "" : DEBUG_LEVEL " ";
286 }
287
288 unsigned int Abstract_VM_Version::jvm_version() {
289 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
290 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
291 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) |
292 (Abstract_VM_Version::vm_build_number() & 0xFF);
293 }
294
295
296 void VM_Version_init() {
297 VM_Version::initialize();
298
299 if (log_is_enabled(Info, os, cpu)) {
300 char buf[1024];
301 ResourceMark rm;
302 outputStream* log = Log(os, cpu)::info_stream();
303 os::print_cpu_info(log, buf, sizeof(buf));
304 }
305 }
306
307 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
308 unsigned int num,
309 unsigned int den,
310 unsigned int switch_pt) {
311 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
312 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
313 unsigned int threads;
314 // For very large machines, there are diminishing returns
315 // for large numbers of worker threads. Instead of
316 // hogging the whole system, use a fraction of the workers for every
317 // processor after the first 8. For example, on a 72 cpu machine
318 // and a chosen fraction of 5/8
319 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
320 unsigned int ncpus = (unsigned int) os::initial_active_processor_count();
321 threads = (ncpus <= switch_pt) ?
322 ncpus :
323 (switch_pt + ((ncpus - switch_pt) * num) / den);
324 #ifndef _LP64
325 // On 32-bit binaries the virtual address space available to the JVM
326 // is usually limited to 2-3 GB (depends on the platform).
327 // Do not use up address space with too many threads (stacks and per-thread
328 // data). Note that x86 apps running on Win64 have 2 stacks per thread.
329 // GC may more generally scale down threads by max heap size (etc), but the
330 // consequences of over-provisioning threads are higher on 32-bit JVMS,
331 // so add hard limit here:
332 threads = MIN2(threads, (2*switch_pt));
333 #endif
334 return threads;
335 } else {
336 return ParallelGCThreads;
337 }
338 }
339
340 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
341 return nof_parallel_worker_threads(5, 8, 8);
342 }
343
344
345 // Does not set the _initialized flag since it is
346 // a global flag.
347 unsigned int Abstract_VM_Version::parallel_worker_threads() {
348 if (!_parallel_worker_threads_initialized) {
349 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
350 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
351 } else {
352 _parallel_worker_threads = ParallelGCThreads;
353 }
354 _parallel_worker_threads_initialized = true;
355 }
356 return _parallel_worker_threads;
357 }