1 /*
2 * Copyright (c) 1998, 2013, 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 #ifdef TARGET_ARCH_x86
30 # include "vm_version_x86.hpp"
31 #endif
32 #ifdef TARGET_ARCH_sparc
33 # include "vm_version_sparc.hpp"
34 #endif
35 #ifdef TARGET_ARCH_zero
36 # include "vm_version_zero.hpp"
37 #endif
38 #ifdef TARGET_ARCH_arm
39 # include "vm_version_arm.hpp"
40 #endif
41 #ifdef TARGET_ARCH_ppc
42 # include "vm_version_ppc.hpp"
43 #endif
44
45 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
46 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
47 bool Abstract_VM_Version::_supports_cx8 = false;
48 bool Abstract_VM_Version::_supports_atomic_getset4 = false;
49 bool Abstract_VM_Version::_supports_atomic_getset8 = false;
50 bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
51 bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
52 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
53 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
54
55 #ifndef HOTSPOT_RELEASE_VERSION
56 #error HOTSPOT_RELEASE_VERSION must be defined
57 #endif
58 #ifndef JRE_RELEASE_VERSION
59 #error JRE_RELEASE_VERSION must be defined
60 #endif
61 #ifndef HOTSPOT_BUILD_TARGET
62 #error HOTSPOT_BUILD_TARGET must be defined
63 #endif
64
65 #ifdef PRODUCT
66 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
67 #else
68 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
69 #endif
70
71 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
72 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
73 int Abstract_VM_Version::_vm_major_version = 0;
74 int Abstract_VM_Version::_vm_minor_version = 0;
75 int Abstract_VM_Version::_vm_build_number = 0;
76 bool Abstract_VM_Version::_initialized = false;
77 int Abstract_VM_Version::_parallel_worker_threads = 0;
78 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
79
80 void Abstract_VM_Version::initialize() {
81 if (_initialized) {
82 return;
83 }
84 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
85
86 // Expecting the next vm_version format:
87 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
88 char* vm_major_ver = vm_version;
89 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
90 char* vm_minor_ver = strchr(vm_major_ver, '.');
91 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
92 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
93 vm_minor_ver += 1;
94 char* vm_build_num = strchr(vm_minor_ver, '-');
95 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
96 vm_build_num[0] = '\0'; // terminate vm_minor_ver
97 vm_build_num += 2;
98
99 _vm_major_version = atoi(vm_major_ver);
100 _vm_minor_version = atoi(vm_minor_ver);
101 _vm_build_number = atoi(vm_build_num);
102
103 os::free(vm_version);
104 _initialized = true;
105 }
106
107 #if defined(_LP64)
108 #define VMLP "64-Bit "
109 #else
110 #define VMLP ""
111 #endif
112
113 #ifndef VMTYPE
114 #ifdef TIERED
115 #define VMTYPE "Server"
116 #else // TIERED
117 #ifdef ZERO
118 #ifdef SHARK
119 #define VMTYPE "Shark"
120 #else // SHARK
121 #define VMTYPE "Zero"
122 #endif // SHARK
123 #else // ZERO
124 #define VMTYPE COMPILER1_PRESENT("Client") \
125 COMPILER2_PRESENT("Server")
126 #endif // ZERO
127 #endif // TIERED
128 #endif
129
130 #ifndef HOTSPOT_VM_DISTRO
131 #error HOTSPOT_VM_DISTRO must be defined
132 #endif
133 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
134
135 const char* Abstract_VM_Version::vm_name() {
136 return VMNAME;
137 }
138
139
140 const char* Abstract_VM_Version::vm_vendor() {
141 #ifdef VENDOR
142 return XSTR(VENDOR);
143 #else
144 return JDK_Version::is_gte_jdk17x_version() ?
145 "Oracle Corporation" : "Sun Microsystems Inc.";
146 #endif
147 }
148
149
150 const char* Abstract_VM_Version::vm_info_string() {
151 switch (Arguments::mode()) {
152 case Arguments::_int:
153 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
154 case Arguments::_mixed:
155 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
156 case Arguments::_comp:
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 JRE_RELEASE_VERSION;
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 #else
187 #define CPU IA32_ONLY("x86") \
188 IA64_ONLY("ia64") \
189 AMD64_ONLY("amd64") \
190 PPC64_ONLY("ppc64") \
191 SPARC_ONLY("sparc")
192 #endif // ZERO
193 #endif
194
195 const char *Abstract_VM_Version::vm_platform_string() {
196 return OS "-" CPU;
197 }
198
199 const char* Abstract_VM_Version::internal_vm_info_string() {
200 #ifndef HOTSPOT_BUILD_USER
201 #define HOTSPOT_BUILD_USER unknown
202 #endif
203
204 #ifndef HOTSPOT_BUILD_COMPILER
205 #ifdef _MSC_VER
206 #if _MSC_VER == 1100
207 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
208 #elif _MSC_VER == 1200
209 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
210 #elif _MSC_VER == 1310
211 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
212 #elif _MSC_VER == 1400
213 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
214 #elif _MSC_VER == 1500
215 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
216 #elif _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 #else
221 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
222 #endif
223 #elif defined(__SUNPRO_CC)
224 #if __SUNPRO_CC == 0x420
225 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
226 #elif __SUNPRO_CC == 0x500
227 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
228 #elif __SUNPRO_CC == 0x520
229 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
230 #elif __SUNPRO_CC == 0x580
231 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
232 #elif __SUNPRO_CC == 0x590
233 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
234 #elif __SUNPRO_CC == 0x5100
235 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
236 #elif __SUNPRO_CC == 0x5120
237 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
238 #else
239 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
240 #endif
241 #elif defined(__GNUC__)
242 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
243 #elif defined(__IBMCPP__)
244 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
245
246 #else
247 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
248 #endif
249 #endif
250
251 #ifndef FLOAT_ARCH
252 #if defined(__SOFTFP__)
253 #define FLOAT_ARCH_STR "-sflt"
254 #else
255 #define FLOAT_ARCH_STR ""
256 #endif
257 #else
258 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
259 #endif
260
261 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR
262 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
263 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
264 }
265
266 const char *Abstract_VM_Version::vm_build_user() {
267 return HOTSPOT_BUILD_USER;
268 }
269
270 unsigned int Abstract_VM_Version::jvm_version() {
271 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
272 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
273 (Abstract_VM_Version::vm_build_number() & 0xFF);
274 }
275
276
277 void VM_Version_init() {
278 VM_Version::initialize();
279
280 #ifndef PRODUCT
281 if (PrintMiscellaneous && Verbose) {
282 os::print_cpu_info(tty);
283 }
284 #endif
285 }
286
287 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
288 unsigned int num,
289 unsigned int den,
290 unsigned int switch_pt) {
291 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
292 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
293 // For very large machines, there are diminishing returns
294 // for large numbers of worker threads. Instead of
295 // hogging the whole system, use a fraction of the workers for every
296 // processor after the first 8. For example, on a 72 cpu machine
297 // and a chosen fraction of 5/8
298 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
299 unsigned int ncpus = (unsigned int) os::active_processor_count();
300 return (ncpus <= switch_pt) ?
301 ncpus :
302 (switch_pt + ((ncpus - switch_pt) * num) / den);
303 } else {
304 return ParallelGCThreads;
305 }
306 }
307
308 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
309 return nof_parallel_worker_threads(5, 8, 8);
310 }
311
312
313 // Does not set the _initialized flag since it is
314 // a global flag.
315 unsigned int Abstract_VM_Version::parallel_worker_threads() {
316 if (!_parallel_worker_threads_initialized) {
317 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
318 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
319 } else {
320 _parallel_worker_threads = ParallelGCThreads;
321 }
322 _parallel_worker_threads_initialized = true;
323 }
324 return _parallel_worker_threads;
325 }