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