1 /* 2 * Copyright (c) 1998, 2014, 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_RELEASE_VERSION 43 #error HOTSPOT_RELEASE_VERSION must be defined 44 #endif 45 46 #ifndef JDK_MAJOR_VERSION 47 #error JDK_MAJOR_VERSION must be defined 48 #endif 49 #ifndef JDK_MINOR_VERSION 50 #error JDK_MINOR_VERSION must be defined 51 #endif 52 #ifndef JDK_MICRO_VERSION 53 #error JDK_MICRO_VERSION must be defined 54 #endif 55 #ifndef JDK_BUILD_NUMBER 56 #error JDK_BUILD_NUMBER must be defined 57 #endif 58 59 #ifndef JRE_RELEASE_VERSION 60 #error JRE_RELEASE_VERSION must be defined 61 #endif 62 63 // NOTE: Builds within Visual Studio do not define the build target in 64 // HOTSPOT_RELEASE_VERSION, 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_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET 70 #else 71 #define VM_RELEASE HOTSPOT_RELEASE_VERSION 72 #endif 73 74 // HOTSPOT_RELEASE_VERSION follows the JDK release version naming convention 75 // <major_ver>.<minor_ver>.<micro_ver>[-<identifier>][-<debug_target>][-b<nn>] 76 int Abstract_VM_Version::_vm_major_version = 0; 77 int Abstract_VM_Version::_vm_minor_version = 0; 78 int Abstract_VM_Version::_vm_micro_version = 0; 79 int Abstract_VM_Version::_vm_build_number = 0; 80 bool Abstract_VM_Version::_initialized = false; 81 int Abstract_VM_Version::_parallel_worker_threads = 0; 82 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false; 83 84 #ifdef ASSERT 85 static void assert_digits(const char * s, const char * message) { 86 for (int i = 0; s[i] != '\0'; i++) { 87 assert(isdigit(s[i]), message); 88 } 89 } 90 #endif 91 92 static void set_version_field(int * version_field, const char * version_str, 93 const char * const assert_msg) { 94 if (version_str != NULL && *version_str != '\0') { 95 DEBUG_ONLY(assert_digits(version_str, assert_msg)); 96 *version_field = atoi(version_str); 97 } 98 } 99 100 void Abstract_VM_Version::initialize() { 101 if (_initialized) { 102 return; 103 } 104 105 set_version_field(&_vm_major_version, JDK_MAJOR_VERSION, "bad major version"); 106 set_version_field(&_vm_minor_version, JDK_MINOR_VERSION, "bad minor version"); 107 set_version_field(&_vm_micro_version, JDK_MICRO_VERSION, "bad micro version"); 108 int offset = (JDK_BUILD_NUMBER != NULL && JDK_BUILD_NUMBER[0] == 'b') ? 1 : 0; 109 set_version_field(&_vm_build_number, &JDK_BUILD_NUMBER[offset], 110 "bad build number"); 111 112 _initialized = true; 113 } 114 115 #if defined(_LP64) 116 #define VMLP "64-Bit " 117 #else 118 #define VMLP "" 119 #endif 120 121 #ifndef VMTYPE 122 #ifdef TIERED 123 #define VMTYPE "Server" 124 #else // TIERED 125 #ifdef ZERO 126 #ifdef SHARK 127 #define VMTYPE "Shark" 128 #else // SHARK 129 #define VMTYPE "Zero" 130 #endif // SHARK 131 #else // ZERO 132 #define VMTYPE COMPILER1_PRESENT("Client") \ 133 COMPILER2_PRESENT("Server") 134 #endif // ZERO 135 #endif // TIERED 136 #endif 137 138 #ifndef HOTSPOT_VM_DISTRO 139 #error HOTSPOT_VM_DISTRO must be defined 140 #endif 141 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM" 142 143 const char* Abstract_VM_Version::vm_name() { 144 return VMNAME; 145 } 146 147 148 const char* Abstract_VM_Version::vm_vendor() { 149 #ifdef VENDOR 150 return XSTR(VENDOR); 151 #else 152 return "Oracle Corporation"; 153 #endif 154 } 155 156 157 const char* Abstract_VM_Version::vm_info_string() { 158 switch (Arguments::mode()) { 159 case Arguments::_int: 160 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode"; 161 case Arguments::_mixed: 162 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode"; 163 case Arguments::_comp: 164 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode"; 165 }; 166 ShouldNotReachHere(); 167 return ""; 168 } 169 170 // NOTE: do *not* use stringStream. this function is called by 171 // fatal error handler. if the crash is in native thread, 172 // stringStream cannot get resource allocated and will SEGV. 173 const char* Abstract_VM_Version::vm_release() { 174 return VM_RELEASE; 175 } 176 177 // NOTE: do *not* use stringStream. this function is called by 178 // fatal error handlers. if the crash is in native thread, 179 // stringStream cannot get resource allocated and will SEGV. 180 const char* Abstract_VM_Version::jre_release_version() { 181 return JRE_RELEASE_VERSION; 182 } 183 184 #define OS LINUX_ONLY("linux") \ 185 WINDOWS_ONLY("windows") \ 186 SOLARIS_ONLY("solaris") \ 187 AIX_ONLY("aix") \ 188 BSD_ONLY("bsd") 189 190 #ifdef ZERO 191 #define CPU ZERO_LIBARCH 192 #else 193 #define CPU IA32_ONLY("x86") \ 194 IA64_ONLY("ia64") \ 195 AMD64_ONLY("amd64") \ 196 ARM_ONLY("arm") \ 197 PPC32_ONLY("ppc") \ 198 PPC64_ONLY("ppc64") \ 199 SPARC_ONLY("sparc") 200 #endif // ZERO 201 202 const char *Abstract_VM_Version::vm_platform_string() { 203 return OS "-" CPU; 204 } 205 206 const char* Abstract_VM_Version::internal_vm_info_string() { 207 #ifndef HOTSPOT_BUILD_USER 208 #define HOTSPOT_BUILD_USER unknown 209 #endif 210 211 #ifndef HOTSPOT_BUILD_COMPILER 212 #ifdef _MSC_VER 213 #if _MSC_VER == 1600 214 #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)" 215 #elif _MSC_VER == 1700 216 #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)" 217 #elif _MSC_VER == 1800 218 #define HOTSPOT_BUILD_COMPILER "MS VC++ 12.0 (VS2013)" 219 #else 220 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 221 #endif 222 #elif defined(__SUNPRO_CC) 223 #if __SUNPRO_CC == 0x420 224 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 225 #elif __SUNPRO_CC == 0x500 226 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 227 #elif __SUNPRO_CC == 0x520 228 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 229 #elif __SUNPRO_CC == 0x580 230 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 231 #elif __SUNPRO_CC == 0x590 232 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 233 #elif __SUNPRO_CC == 0x5100 234 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 235 #elif __SUNPRO_CC == 0x5120 236 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3" 237 #else 238 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 239 #endif 240 #elif defined(__GNUC__) 241 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 242 #elif defined(__IBMCPP__) 243 #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__) 244 245 #else 246 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 247 #endif 248 #endif 249 250 #ifndef FLOAT_ARCH 251 #if defined(__SOFTFP__) 252 #define FLOAT_ARCH_STR "-sflt" 253 #elif defined(E500V2) 254 #define FLOAT_ARCH_STR "-e500v2" 255 #elif defined(ARM) 256 #define FLOAT_ARCH_STR "-vfp" 257 #elif defined(PPC32) 258 #define FLOAT_ARCH_STR "-hflt" 259 #else 260 #define FLOAT_ARCH_STR "" 261 #endif 262 #else 263 #define FLOAT_ARCH_STR XSTR(FLOAT_ARCH) 264 #endif 265 266 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR 267 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__ 268 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER; 269 } 270 271 const char *Abstract_VM_Version::vm_build_user() { 272 return HOTSPOT_BUILD_USER; 273 } 274 275 unsigned int Abstract_VM_Version::jvm_version() { 276 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 277 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 278 ((Abstract_VM_Version::vm_micro_version() & 0xFF) << 8) | 279 (Abstract_VM_Version::vm_build_number() & 0xFF); 280 } 281 282 283 void VM_Version_init() { 284 VM_Version::initialize(); 285 286 #ifndef PRODUCT 287 if (PrintMiscellaneous && Verbose) { 288 os::print_cpu_info(tty); 289 } 290 #endif 291 } 292 293 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 294 unsigned int num, 295 unsigned int den, 296 unsigned int switch_pt) { 297 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 298 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 299 // For very large machines, there are diminishing returns 300 // for large numbers of worker threads. Instead of 301 // hogging the whole system, use a fraction of the workers for every 302 // processor after the first 8. For example, on a 72 cpu machine 303 // and a chosen fraction of 5/8 304 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 305 unsigned int ncpus = (unsigned int) os::active_processor_count(); 306 return (ncpus <= switch_pt) ? 307 ncpus : 308 (switch_pt + ((ncpus - switch_pt) * num) / den); 309 } else { 310 return ParallelGCThreads; 311 } 312 } 313 314 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 315 return nof_parallel_worker_threads(5, 8, 8); 316 } 317 318 319 // Does not set the _initialized flag since it is 320 // a global flag. 321 unsigned int Abstract_VM_Version::parallel_worker_threads() { 322 if (!_parallel_worker_threads_initialized) { 323 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 324 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 325 } else { 326 _parallel_worker_threads = ParallelGCThreads; 327 } 328 _parallel_worker_threads_initialized = true; 329 } 330 return _parallel_worker_threads; 331 }