1 /*
2 * Copyright (c) 1998, 2015, 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 "memory/universe.hpp"
27 #include "oops/oop.inline.hpp"
28 #include "runtime/arguments.hpp"
29 #include "runtime/vm_version.hpp"
30
31 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
32 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
33 bool Abstract_VM_Version::_supports_cx8 = false;
34 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
35 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
36 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
37 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
38 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
39 unsigned int Abstract_VM_Version::_L1_data_cache_line_size = 0;
40 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
41
42 #ifndef HOTSPOT_VERSION_STRING
43 #error HOTSPOT_VERSION_STRING must be defined
44 #endif
45
46 #ifndef VERSION_MAJOR
47 #error VERSION_MAJOR must be defined
48 #endif
49 #ifndef VERSION_MINOR
50 #error VERSION_MINOR must be defined
51 #endif
52 #ifndef VERSION_SECURITY
53 #error VERSION_SECURITY must be defined
54 #endif
55 #ifndef VERSION_BUILD
56 #error VERSION_BUILD must be defined
57 #endif
58
59 #ifndef VERSION_STRING
60 #error VERSION_STRING must be defined
61 #endif
62
63 // NOTE: Builds within Visual Studio do not define the build target in
64 // HOTSPOT_VERSION_STRING, so it must be done here
65 #if defined(VISUAL_STUDIO_BUILD) && !defined(PRODUCT)
66 #ifndef HOTSPOT_BUILD_TARGET
67 #error HOTSPOT_BUILD_TARGET must be defined
68 #endif
69 #define VM_RELEASE HOTSPOT_VERSION_STRING "-" HOTSPOT_BUILD_TARGET
70 #else
71 #define VM_RELEASE HOTSPOT_VERSION_STRING
72 #endif
73
74 // HOTSPOT_VERSION_STRING equals the JDK VERSION_STRING (unless overridden
75 // in a standalone build).
76 int Abstract_VM_Version::_vm_major_version = VERSION_MAJOR;
77 int Abstract_VM_Version::_vm_minor_version = VERSION_MINOR;
78 int Abstract_VM_Version::_vm_security_version = VERSION_SECURITY;
79 int Abstract_VM_Version::_vm_build_number = VERSION_BUILD;
80 bool Abstract_VM_Version::_initialized = false;
81 unsigned int Abstract_VM_Version::_parallel_worker_threads = 0;
82 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
83
84 void Abstract_VM_Version::initialize() {
85 // FIXME: Initialization can probably be removed now.
86 if (_initialized) {
87 return;
88 }
89
90 _initialized = true;
91 }
92
93 #if defined(_LP64)
94 #define VMLP "64-Bit "
95 #else
96 #define VMLP ""
97 #endif
98
99 #ifndef VMTYPE
100 #ifdef TIERED
101 #define VMTYPE "Server"
102 #else // TIERED
103 #ifdef ZERO
104 #ifdef SHARK
105 #define VMTYPE "Shark"
106 #else // SHARK
107 #define VMTYPE "Zero"
108 #endif // SHARK
109 #else // ZERO
110 #define VMTYPE COMPILER1_PRESENT("Client") \
111 COMPILER2_PRESENT("Server")
112 #endif // ZERO
113 #endif // TIERED
114 #endif
115
116 #ifndef HOTSPOT_VM_DISTRO
117 #error HOTSPOT_VM_DISTRO must be defined
118 #endif
119 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
120
121 const char* Abstract_VM_Version::vm_name() {
122 return VMNAME;
123 }
124
125
126 const char* Abstract_VM_Version::vm_vendor() {
127 #ifdef VENDOR
128 return XSTR(VENDOR);
129 #else
130 return "Oracle Corporation";
131 #endif
132 }
133
134
135 const char* Abstract_VM_Version::vm_info_string() {
136 switch (Arguments::mode()) {
137 case Arguments::_int:
138 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
139 case Arguments::_mixed:
140 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
141 case Arguments::_comp:
142 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
143 };
144 ShouldNotReachHere();
145 return "";
146 }
147
148 // NOTE: do *not* use stringStream. this function is called by
149 // fatal error handler. if the crash is in native thread,
150 // stringStream cannot get resource allocated and will SEGV.
151 const char* Abstract_VM_Version::vm_release() {
152 return VM_RELEASE;
153 }
154
155 // NOTE: do *not* use stringStream. this function is called by
156 // fatal error handlers. if the crash is in native thread,
157 // stringStream cannot get resource allocated and will SEGV.
158 const char* Abstract_VM_Version::jre_release_version() {
159 return VERSION_STRING;
160 }
161
162 #define OS LINUX_ONLY("linux") \
163 WINDOWS_ONLY("windows") \
164 SOLARIS_ONLY("solaris") \
165 AIX_ONLY("aix") \
166 BSD_ONLY("bsd")
167
168 #ifndef CPU
169 #ifdef ZERO
170 #define CPU ZERO_LIBARCH
171 #else
172 #define CPU IA32_ONLY("x86") \
173 IA64_ONLY("ia64") \
174 AMD64_ONLY("amd64") \
175 PPC64_ONLY("ppc64") \
176 AARCH64_ONLY("aarch64") \
177 SPARC_ONLY("sparc")
178 #endif // ZERO
179 #endif
180
181 const char *Abstract_VM_Version::vm_platform_string() {
182 return OS "-" CPU;
183 }
184
185 const char* Abstract_VM_Version::internal_vm_info_string() {
186 #ifndef HOTSPOT_BUILD_USER
187 #define HOTSPOT_BUILD_USER unknown
188 #endif
189
190 #ifndef HOTSPOT_BUILD_COMPILER
191 #ifdef _MSC_VER
192 #if _MSC_VER == 1600
193 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
194 #elif _MSC_VER == 1700
195 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
196 #elif _MSC_VER == 1800
197 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)"
198 #else
199 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
200 #endif
201 #elif defined(__SUNPRO_CC)
202 #if __SUNPRO_CC == 0x420
203 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
204 #elif __SUNPRO_CC == 0x500
205 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
206 #elif __SUNPRO_CC == 0x520
207 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
208 #elif __SUNPRO_CC == 0x580
209 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
210 #elif __SUNPRO_CC == 0x590
211 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
212 #elif __SUNPRO_CC == 0x5100
213 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
214 #elif __SUNPRO_CC == 0x5120
215 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
216 #else
217 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
218 #endif
219 #elif defined(__GNUC__)
220 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
221 #elif defined(__IBMCPP__)
222 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
223
224 #else
225 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
226 #endif
227 #endif
228
229 #ifndef FLOAT_ARCH
230 #if defined(__SOFTFP__)
231 #define FLOAT_ARCH_STR "-sflt"
232 #else
233 #define FLOAT_ARCH_STR ""
234 #endif
235 #else
236 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
237 #endif
238
239 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR
240 " JRE (" VERSION_STRING "), built on " __DATE__ " " __TIME__
241 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
242 }
243
244 const char *Abstract_VM_Version::vm_build_user() {
245 return HOTSPOT_BUILD_USER;
246 }
247
248 unsigned int Abstract_VM_Version::jvm_version() {
249 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
250 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
251 ((Abstract_VM_Version::vm_security_version() & 0xFF) << 8) |
252 (Abstract_VM_Version::vm_build_number() & 0xFF);
253 }
254
255
256 void VM_Version_init() {
257 VM_Version::initialize();
258
259 #ifndef PRODUCT
260 if (PrintMiscellaneous && Verbose) {
261 os::print_cpu_info(tty);
262 }
263 #endif
264 }
265
266 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
267 unsigned int num,
268 unsigned int den,
269 unsigned int switch_pt) {
270 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
271 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
272 // For very large machines, there are diminishing returns
273 // for large numbers of worker threads. Instead of
274 // hogging the whole system, use a fraction of the workers for every
275 // processor after the first 8. For example, on a 72 cpu machine
276 // and a chosen fraction of 5/8
277 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
278 unsigned int ncpus = (unsigned int) os::active_processor_count();
279 return (ncpus <= switch_pt) ?
280 ncpus :
281 (switch_pt + ((ncpus - switch_pt) * num) / den);
282 } else {
283 return ParallelGCThreads;
284 }
285 }
286
287 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
288 return nof_parallel_worker_threads(5, 8, 8);
289 }
290
291
292 // Does not set the _initialized flag since it is
293 // a global flag.
294 unsigned int Abstract_VM_Version::parallel_worker_threads() {
295 if (!_parallel_worker_threads_initialized) {
296 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
297 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
298 } else {
299 _parallel_worker_threads = ParallelGCThreads;
300 }
301 _parallel_worker_threads_initialized = true;
302 }
303 return _parallel_worker_threads;
304 }