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 */ 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 #ifdef KERNEL 114 #define VMTYPE "Kernel" 115 #else // KERNEL 116 #ifdef TIERED 117 #define VMTYPE "Server" 118 #else // TIERED 119 #ifdef ZERO 120 #ifdef SHARK 121 #define VMTYPE "Shark" 122 #else // SHARK 123 #define VMTYPE "Zero" 124 #endif // SHARK 125 #else // ZERO 126 #define VMTYPE COMPILER1_PRESENT("Client") \ 127 COMPILER2_PRESENT("Server") 128 #endif // ZERO 129 #endif // TIERED 130 #endif // KERNEL 131 132 #ifndef HOTSPOT_VM_DISTRO 133 #error HOTSPOT_VM_DISTRO must be defined 134 #endif 135 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM" 136 137 const char* Abstract_VM_Version::vm_name() { 138 return VMNAME; 139 } 140 141 142 const char* Abstract_VM_Version::vm_vendor() { 143 #ifdef VENDOR 144 return XSTR(VENDOR); 145 #else 146 return JDK_Version::is_gte_jdk17x_version() ? 147 "Oracle Corporation" : "Sun Microsystems Inc."; 148 #endif 149 } 150 151 152 const char* Abstract_VM_Version::vm_info_string() { 153 switch (Arguments::mode()) { 154 case Arguments::_int: 155 return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode"; 156 case Arguments::_mixed: 157 return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode"; 158 case Arguments::_comp: 159 return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode"; 160 }; 161 ShouldNotReachHere(); 162 return ""; 163 } 164 165 // NOTE: do *not* use stringStream. this function is called by 166 // fatal error handler. if the crash is in native thread, 167 // stringStream cannot get resource allocated and will SEGV. 168 const char* Abstract_VM_Version::vm_release() { 169 return VM_RELEASE; 170 } 171 172 // NOTE: do *not* use stringStream. this function is called by 173 // fatal error handlers. if the crash is in native thread, 174 // stringStream cannot get resource allocated and will SEGV. 175 const char* Abstract_VM_Version::jre_release_version() { 176 return JRE_RELEASE_VERSION; 177 } 178 179 #define OS LINUX_ONLY("linux") \ 180 WINDOWS_ONLY("windows") \ 181 SOLARIS_ONLY("solaris") \ 182 BSD_ONLY("bsd") 183 184 #ifdef ZERO 185 #define CPU ZERO_LIBARCH 186 #else 187 #define CPU IA32_ONLY("x86") \ 188 IA64_ONLY("ia64") \ 189 AMD64_ONLY("amd64") \ 190 ARM_ONLY("arm") \ 191 PPC_ONLY("ppc") \ 192 SPARC_ONLY("sparc") 193 #endif // ZERO 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 #else 217 #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER) 218 #endif 219 #elif defined(__SUNPRO_CC) 220 #if __SUNPRO_CC == 0x420 221 #define HOTSPOT_BUILD_COMPILER "Workshop 4.2" 222 #elif __SUNPRO_CC == 0x500 223 #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT) 224 #elif __SUNPRO_CC == 0x520 225 #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT) 226 #elif __SUNPRO_CC == 0x580 227 #define HOTSPOT_BUILD_COMPILER "Workshop 5.8" 228 #elif __SUNPRO_CC == 0x590 229 #define HOTSPOT_BUILD_COMPILER "Workshop 5.9" 230 #elif __SUNPRO_CC == 0x5100 231 #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1" 232 #else 233 #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC) 234 #endif 235 #elif defined(__GNUC__) 236 #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__ 237 #else 238 #define HOTSPOT_BUILD_COMPILER "unknown compiler" 239 #endif 240 #endif 241 242 #ifndef FLOAT_ARCH 243 #if defined(__SOFTFP__) 244 #define FLOAT_ARCH "-sflt" 245 #elif defined(E500V2) 246 #define FLOAT_ARCH "-e500v2" 247 #elif defined(ARM) 248 #define FLOAT_ARCH "-vfp" 249 #elif defined(PPC) 250 #define FLOAT_ARCH "-hflt" 251 #else 252 #define FLOAT_ARCH "" 253 #endif 254 #endif 255 256 return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH 257 " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__ 258 " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER; 259 } 260 261 const char *Abstract_VM_Version::vm_build_user() { 262 return HOTSPOT_BUILD_USER; 263 } 264 265 unsigned int Abstract_VM_Version::jvm_version() { 266 return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) | 267 ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) | 268 (Abstract_VM_Version::vm_build_number() & 0xFF); 269 } 270 271 272 void VM_Version_init() { 273 VM_Version::initialize(); 274 275 #ifndef PRODUCT 276 if (PrintMiscellaneous && Verbose) { 277 os::print_cpu_info(tty); 278 } 279 #endif 280 } 281 282 unsigned int Abstract_VM_Version::nof_parallel_worker_threads( 283 unsigned int num, 284 unsigned int den, 285 unsigned int switch_pt) { 286 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 287 assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0"); 288 // For very large machines, there are diminishing returns 289 // for large numbers of worker threads. Instead of 290 // hogging the whole system, use a fraction of the workers for every 291 // processor after the first 8. For example, on a 72 cpu machine 292 // and a chosen fraction of 5/8 293 // use 8 + (72 - 8) * (5/8) == 48 worker threads. 294 unsigned int ncpus = (unsigned int) os::active_processor_count(); 295 return (ncpus <= switch_pt) ? 296 ncpus : 297 (switch_pt + ((ncpus - switch_pt) * num) / den); 298 } else { 299 return ParallelGCThreads; 300 } 301 } 302 303 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() { 304 return nof_parallel_worker_threads(5, 8, 8); 305 } 306 307 308 // Does not set the _initialized flag since it is 309 // a global flag. 310 unsigned int Abstract_VM_Version::parallel_worker_threads() { 311 if (!_parallel_worker_threads_initialized) { 312 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { 313 _parallel_worker_threads = VM_Version::calc_parallel_worker_threads(); 314 } else { 315 _parallel_worker_threads = ParallelGCThreads; 316 } 317 _parallel_worker_threads_initialized = true; 318 } 319 return _parallel_worker_threads; 320 }