src/share/vm/runtime/vm_version.cpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 2155
728a287f6c20
child 2508
b92c45f2bc75
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 1998, 2010, 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
    39 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
    40 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
    41 bool Abstract_VM_Version::_supports_cx8 = false;
    42 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
    44 #ifndef HOTSPOT_RELEASE_VERSION
    45   #error HOTSPOT_RELEASE_VERSION must be defined
    46 #endif
    47 #ifndef JRE_RELEASE_VERSION
    48   #error JRE_RELEASE_VERSION must be defined
    49 #endif
    50 #ifndef HOTSPOT_BUILD_TARGET
    51   #error HOTSPOT_BUILD_TARGET must be defined
    52 #endif
    54 #ifdef PRODUCT
    55   #define VM_RELEASE HOTSPOT_RELEASE_VERSION
    56 #else
    57   #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
    58 #endif
    60 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention
    61 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
    62 int Abstract_VM_Version::_vm_major_version = 0;
    63 int Abstract_VM_Version::_vm_minor_version = 0;
    64 int Abstract_VM_Version::_vm_build_number = 0;
    65 bool Abstract_VM_Version::_initialized = false;
    66 int Abstract_VM_Version::_parallel_worker_threads = 0;
    67 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
    69 void Abstract_VM_Version::initialize() {
    70   if (_initialized) {
    71     return;
    72   }
    73   char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
    75   // Expecting the next vm_version format:
    76   // <major_ver>.<minor_ver>-b<nn>[-<identifier>]
    77   char* vm_major_ver = vm_version;
    78   assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
    79   char* vm_minor_ver = strchr(vm_major_ver, '.');
    80   assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
    81   vm_minor_ver[0] = '\0'; // terminate vm_major_ver
    82   vm_minor_ver += 1;
    83   char* vm_build_num = strchr(vm_minor_ver, '-');
    84   assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
    85   vm_build_num[0] = '\0'; // terminate vm_minor_ver
    86   vm_build_num += 2;
    88   _vm_major_version = atoi(vm_major_ver);
    89   _vm_minor_version = atoi(vm_minor_ver);
    90   _vm_build_number  = atoi(vm_build_num);
    92   os::free(vm_version);
    93   _initialized = true;
    94 }
    96 #if defined(_LP64)
    97   #define VMLP "64-Bit "
    98 #else
    99   #define VMLP ""
   100 #endif
   102 #ifdef KERNEL
   103   #define VMTYPE "Kernel"
   104 #else // KERNEL
   105 #ifdef TIERED
   106   #define VMTYPE "Server"
   107 #else // TIERED
   108 #ifdef ZERO
   109 #ifdef SHARK
   110   #define VMTYPE "Shark"
   111 #else // SHARK
   112   #define VMTYPE "Zero"
   113 #endif // SHARK
   114 #else // ZERO
   115    #define VMTYPE COMPILER1_PRESENT("Client")   \
   116                   COMPILER2_PRESENT("Server")
   117 #endif // ZERO
   118 #endif // TIERED
   119 #endif // KERNEL
   121 #ifndef HOTSPOT_VM_DISTRO
   122   #error HOTSPOT_VM_DISTRO must be defined
   123 #endif
   124 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"
   126 const char* Abstract_VM_Version::vm_name() {
   127   return VMNAME;
   128 }
   131 const char* Abstract_VM_Version::vm_vendor() {
   132 #ifdef VENDOR
   133   return XSTR(VENDOR);
   134 #else
   135   return JDK_Version::is_gte_jdk17x_version() ?
   136     "Oracle Corporation" : "Sun Microsystems Inc.";
   137 #endif
   138 }
   141 const char* Abstract_VM_Version::vm_info_string() {
   142   switch (Arguments::mode()) {
   143     case Arguments::_int:
   144       return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
   145     case Arguments::_mixed:
   146       return UseSharedSpaces ? "mixed mode, sharing"       :  "mixed mode";
   147     case Arguments::_comp:
   148       return UseSharedSpaces ? "compiled mode, sharing"    : "compiled mode";
   149   };
   150   ShouldNotReachHere();
   151   return "";
   152 }
   154 // NOTE: do *not* use stringStream. this function is called by
   155 //       fatal error handler. if the crash is in native thread,
   156 //       stringStream cannot get resource allocated and will SEGV.
   157 const char* Abstract_VM_Version::vm_release() {
   158   return VM_RELEASE;
   159 }
   161 #define OS       LINUX_ONLY("linux")             \
   162                  WINDOWS_ONLY("windows")         \
   163                  SOLARIS_ONLY("solaris")
   165 #ifdef ZERO
   166 #define CPU      ZERO_LIBARCH
   167 #else
   168 #define CPU      IA32_ONLY("x86")                \
   169                  IA64_ONLY("ia64")               \
   170                  AMD64_ONLY("amd64")             \
   171                  ARM_ONLY("arm")                 \
   172                  PPC_ONLY("ppc")                 \
   173                  SPARC_ONLY("sparc")
   174 #endif // ZERO
   176 const char *Abstract_VM_Version::vm_platform_string() {
   177   return OS "-" CPU;
   178 }
   180 const char* Abstract_VM_Version::internal_vm_info_string() {
   181   #ifndef HOTSPOT_BUILD_USER
   182     #define HOTSPOT_BUILD_USER unknown
   183   #endif
   185   #ifndef HOTSPOT_BUILD_COMPILER
   186     #ifdef _MSC_VER
   187       #if   _MSC_VER == 1100
   188         #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
   189       #elif _MSC_VER == 1200
   190         #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
   191       #elif _MSC_VER == 1310
   192         #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
   193       #elif _MSC_VER == 1400
   194         #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
   195       #elif _MSC_VER == 1500
   196         #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
   197       #else
   198         #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
   199       #endif
   200     #elif defined(__SUNPRO_CC)
   201       #if   __SUNPRO_CC == 0x420
   202         #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
   203       #elif __SUNPRO_CC == 0x500
   204         #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
   205       #elif __SUNPRO_CC == 0x520
   206         #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
   207       #elif __SUNPRO_CC == 0x580
   208         #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
   209       #elif __SUNPRO_CC == 0x590
   210         #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
   211       #elif __SUNPRO_CC == 0x5100
   212         #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
   213       #else
   214         #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
   215       #endif
   216     #elif defined(__GNUC__)
   217         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
   218     #else
   219       #define HOTSPOT_BUILD_COMPILER "unknown compiler"
   220     #endif
   221   #endif
   224   return VMNAME " (" VM_RELEASE ") for " OS "-" CPU
   225          " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
   226          " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
   227 }
   229 unsigned int Abstract_VM_Version::jvm_version() {
   230   return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
   231          ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
   232          (Abstract_VM_Version::vm_build_number() & 0xFF);
   233 }
   236 void VM_Version_init() {
   237   VM_Version::initialize();
   239 #ifndef PRODUCT
   240   if (PrintMiscellaneous && Verbose) {
   241     os::print_cpu_info(tty);
   242   }
   243 #endif
   244 }
   246 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
   247                                                       unsigned int num,
   248                                                       unsigned int den,
   249                                                       unsigned int switch_pt) {
   250   if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
   251     assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
   252     // For very large machines, there are diminishing returns
   253     // for large numbers of worker threads.  Instead of
   254     // hogging the whole system, use a fraction of the workers for every
   255     // processor after the first 8.  For example, on a 72 cpu machine
   256     // and a chosen fraction of 5/8
   257     // use 8 + (72 - 8) * (5/8) == 48 worker threads.
   258     unsigned int ncpus = (unsigned int) os::active_processor_count();
   259     return (ncpus <= switch_pt) ?
   260            ncpus :
   261           (switch_pt + ((ncpus - switch_pt) * num) / den);
   262   } else {
   263     return ParallelGCThreads;
   264   }
   265 }
   267 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
   268   return nof_parallel_worker_threads(5, 8, 8);
   269 }
   272 // Does not set the _initialized flag since it is
   273 // a global flag.
   274 unsigned int Abstract_VM_Version::parallel_worker_threads() {
   275   if (!_parallel_worker_threads_initialized) {
   276     if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
   277       _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
   278     } else {
   279       _parallel_worker_threads = ParallelGCThreads;
   280     }
   281     _parallel_worker_threads_initialized = true;
   282   }
   283   return _parallel_worker_threads;
   284 }

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