Wed, 15 Feb 2012 16:29:40 -0800
7142680: default GC affected by jvm path
Summary: Removed old tiered code
Reviewed-by: never, kvn
1 /*
2 * Copyright (c) 1998, 2011, 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 */
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
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 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
49 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
51 #ifndef HOTSPOT_RELEASE_VERSION
52 #error HOTSPOT_RELEASE_VERSION must be defined
53 #endif
54 #ifndef JRE_RELEASE_VERSION
55 #error JRE_RELEASE_VERSION must be defined
56 #endif
57 #ifndef HOTSPOT_BUILD_TARGET
58 #error HOTSPOT_BUILD_TARGET must be defined
59 #endif
61 #ifdef PRODUCT
62 #define VM_RELEASE HOTSPOT_RELEASE_VERSION
63 #else
64 #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
65 #endif
67 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
68 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
69 int Abstract_VM_Version::_vm_major_version = 0;
70 int Abstract_VM_Version::_vm_minor_version = 0;
71 int Abstract_VM_Version::_vm_build_number = 0;
72 bool Abstract_VM_Version::_initialized = false;
73 int Abstract_VM_Version::_parallel_worker_threads = 0;
74 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
76 void Abstract_VM_Version::initialize() {
77 if (_initialized) {
78 return;
79 }
80 char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
82 // Expecting the next vm_version format:
83 // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
84 char* vm_major_ver = vm_version;
85 assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
86 char* vm_minor_ver = strchr(vm_major_ver, '.');
87 assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
88 vm_minor_ver[0] = '\0'; // terminate vm_major_ver
89 vm_minor_ver += 1;
90 char* vm_build_num = strchr(vm_minor_ver, '-');
91 assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
92 vm_build_num[0] = '\0'; // terminate vm_minor_ver
93 vm_build_num += 2;
95 _vm_major_version = atoi(vm_major_ver);
96 _vm_minor_version = atoi(vm_minor_ver);
97 _vm_build_number = atoi(vm_build_num);
99 os::free(vm_version);
100 _initialized = true;
101 }
103 #if defined(_LP64)
104 #define VMLP "64-Bit "
105 #else
106 #define VMLP ""
107 #endif
109 #ifdef KERNEL
110 #define VMTYPE "Kernel"
111 #else // KERNEL
112 #ifdef TIERED
113 #define VMTYPE "Server"
114 #else // TIERED
115 #ifdef ZERO
116 #ifdef SHARK
117 #define VMTYPE "Shark"
118 #else // SHARK
119 #define VMTYPE "Zero"
120 #endif // SHARK
121 #else // ZERO
122 #define VMTYPE COMPILER1_PRESENT("Client") \
123 COMPILER2_PRESENT("Server")
124 #endif // ZERO
125 #endif // TIERED
126 #endif // KERNEL
128 #ifndef HOTSPOT_VM_DISTRO
129 #error HOTSPOT_VM_DISTRO must be defined
130 #endif
131 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
133 const char* Abstract_VM_Version::vm_name() {
134 return VMNAME;
135 }
138 const char* Abstract_VM_Version::vm_vendor() {
139 #ifdef VENDOR
140 return XSTR(VENDOR);
141 #else
142 return JDK_Version::is_gte_jdk17x_version() ?
143 "Oracle Corporation" : "Sun Microsystems Inc.";
144 #endif
145 }
148 const char* Abstract_VM_Version::vm_info_string() {
149 switch (Arguments::mode()) {
150 case Arguments::_int:
151 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
152 case Arguments::_mixed:
153 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
154 case Arguments::_comp:
155 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
156 };
157 ShouldNotReachHere();
158 return "";
159 }
161 // NOTE: do *not* use stringStream. this function is called by
162 // fatal error handler. if the crash is in native thread,
163 // stringStream cannot get resource allocated and will SEGV.
164 const char* Abstract_VM_Version::vm_release() {
165 return VM_RELEASE;
166 }
168 // NOTE: do *not* use stringStream. this function is called by
169 // fatal error handlers. if the crash is in native thread,
170 // stringStream cannot get resource allocated and will SEGV.
171 const char* Abstract_VM_Version::jre_release_version() {
172 return JRE_RELEASE_VERSION;
173 }
175 #define OS LINUX_ONLY("linux") \
176 WINDOWS_ONLY("windows") \
177 SOLARIS_ONLY("solaris") \
178 BSD_ONLY("bsd")
180 #ifdef ZERO
181 #define CPU ZERO_LIBARCH
182 #else
183 #define CPU IA32_ONLY("x86") \
184 IA64_ONLY("ia64") \
185 AMD64_ONLY("amd64") \
186 ARM_ONLY("arm") \
187 PPC_ONLY("ppc") \
188 SPARC_ONLY("sparc")
189 #endif // ZERO
191 const char *Abstract_VM_Version::vm_platform_string() {
192 return OS "-" CPU;
193 }
195 const char* Abstract_VM_Version::internal_vm_info_string() {
196 #ifndef HOTSPOT_BUILD_USER
197 #define HOTSPOT_BUILD_USER unknown
198 #endif
200 #ifndef HOTSPOT_BUILD_COMPILER
201 #ifdef _MSC_VER
202 #if _MSC_VER == 1100
203 #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
204 #elif _MSC_VER == 1200
205 #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
206 #elif _MSC_VER == 1310
207 #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
208 #elif _MSC_VER == 1400
209 #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
210 #elif _MSC_VER == 1500
211 #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
212 #else
213 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
214 #endif
215 #elif defined(__SUNPRO_CC)
216 #if __SUNPRO_CC == 0x420
217 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
218 #elif __SUNPRO_CC == 0x500
219 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
220 #elif __SUNPRO_CC == 0x520
221 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
222 #elif __SUNPRO_CC == 0x580
223 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
224 #elif __SUNPRO_CC == 0x590
225 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
226 #elif __SUNPRO_CC == 0x5100
227 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
228 #else
229 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
230 #endif
231 #elif defined(__GNUC__)
232 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
233 #else
234 #define HOTSPOT_BUILD_COMPILER "unknown compiler"
235 #endif
236 #endif
238 #ifndef FLOAT_ARCH
239 #if defined(__SOFTFP__)
240 #define FLOAT_ARCH "-sflt"
241 #elif defined(E500V2)
242 #define FLOAT_ARCH "-e500v2"
243 #elif defined(ARM)
244 #define FLOAT_ARCH "-vfp"
245 #elif defined(PPC)
246 #define FLOAT_ARCH "-hflt"
247 #else
248 #define FLOAT_ARCH ""
249 #endif
250 #endif
252 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH
253 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
254 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
255 }
257 const char *Abstract_VM_Version::vm_build_user() {
258 return HOTSPOT_BUILD_USER;
259 }
261 unsigned int Abstract_VM_Version::jvm_version() {
262 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
263 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
264 (Abstract_VM_Version::vm_build_number() & 0xFF);
265 }
268 void VM_Version_init() {
269 VM_Version::initialize();
271 #ifndef PRODUCT
272 if (PrintMiscellaneous && Verbose) {
273 os::print_cpu_info(tty);
274 }
275 #endif
276 }
278 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
279 unsigned int num,
280 unsigned int den,
281 unsigned int switch_pt) {
282 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
283 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
284 // For very large machines, there are diminishing returns
285 // for large numbers of worker threads. Instead of
286 // hogging the whole system, use a fraction of the workers for every
287 // processor after the first 8. For example, on a 72 cpu machine
288 // and a chosen fraction of 5/8
289 // use 8 + (72 - 8) * (5/8) == 48 worker threads.
290 unsigned int ncpus = (unsigned int) os::active_processor_count();
291 return (ncpus <= switch_pt) ?
292 ncpus :
293 (switch_pt + ((ncpus - switch_pt) * num) / den);
294 } else {
295 return ParallelGCThreads;
296 }
297 }
299 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
300 return nof_parallel_worker_threads(5, 8, 8);
301 }
304 // Does not set the _initialized flag since it is
305 // a global flag.
306 unsigned int Abstract_VM_Version::parallel_worker_threads() {
307 if (!_parallel_worker_threads_initialized) {
308 if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
309 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
310 } else {
311 _parallel_worker_threads = ParallelGCThreads;
312 }
313 _parallel_worker_threads_initialized = true;
314 }
315 return _parallel_worker_threads;
316 }