jdk8-mips64-public/hotspot: src/share/vm/runtime/vm

     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 "incls/_precompiled.incl"

    26 # include "incls/_vm_version.cpp.incl"

    28 const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();

    29 const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();

    30 bool Abstract_VM_Version::_supports_cx8 = false;

    31 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;

    33 #ifndef HOTSPOT_RELEASE_VERSION

    34   #error HOTSPOT_RELEASE_VERSION must be defined

    35 #endif

    36 #ifndef JRE_RELEASE_VERSION

    37   #error JRE_RELEASE_VERSION must be defined

    38 #endif

    39 #ifndef HOTSPOT_BUILD_TARGET

    40   #error HOTSPOT_BUILD_TARGET must be defined

    41 #endif

    43 #ifdef PRODUCT

    44   #define VM_RELEASE HOTSPOT_RELEASE_VERSION

    45 #else

    46   #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET

    47 #endif

    49 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention

    50 // <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]

    51 int Abstract_VM_Version::_vm_major_version = 0;

    52 int Abstract_VM_Version::_vm_minor_version = 0;

    53 int Abstract_VM_Version::_vm_build_number = 0;

    54 bool Abstract_VM_Version::_initialized = false;

    55 int Abstract_VM_Version::_parallel_worker_threads = 0;

    56 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;

    58 void Abstract_VM_Version::initialize() {

    59   if (_initialized) {

    60     return;

    61   }

    62   char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);

    64   // Expecting the next vm_version format:

    65   // <major_ver>.<minor_ver>-b<nn>[-<identifier>]

    66   char* vm_major_ver = vm_version;

    67   assert(isdigit(vm_major_ver[0]),"wrong vm major version number");

    68   char* vm_minor_ver = strchr(vm_major_ver, '.');

    69   assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");

    70   vm_minor_ver[0] = '\0'; // terminate vm_major_ver

    71   vm_minor_ver += 1;

    72   char* vm_build_num = strchr(vm_minor_ver, '-');

    73   assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");

    74   vm_build_num[0] = '\0'; // terminate vm_minor_ver

    75   vm_build_num += 2;

    77   _vm_major_version = atoi(vm_major_ver);

    78   _vm_minor_version = atoi(vm_minor_ver);

    79   _vm_build_number  = atoi(vm_build_num);

    81   os::free(vm_version);

    82   _initialized = true;

    83 }

    85 #if defined(_LP64)

    86   #define VMLP "64-Bit "

    87 #else

    88   #define VMLP ""

    89 #endif

    91 #ifdef KERNEL

    92   #define VMTYPE "Kernel"

    93 #else // KERNEL

    94 #ifdef TIERED

    95   #define VMTYPE "Server"

    96 #else // TIERED

    97 #ifdef ZERO

    98 #ifdef SHARK

    99   #define VMTYPE "Shark"

   100 #else // SHARK

   101   #define VMTYPE "Zero"

   102 #endif // SHARK

   103 #else // ZERO

   104    #define VMTYPE COMPILER1_PRESENT("Client")   \

   105                   COMPILER2_PRESENT("Server")

   106 #endif // ZERO

   107 #endif // TIERED

   108 #endif // KERNEL

   110 #ifndef HOTSPOT_VM_DISTRO

   111   #error HOTSPOT_VM_DISTRO must be defined

   112 #endif

   113 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP VMTYPE " VM"

   115 const char* Abstract_VM_Version::vm_name() {

   116   return VMNAME;

   117 }

   120 const char* Abstract_VM_Version::vm_vendor() {

   121 #ifdef VENDOR

   122   return XSTR(VENDOR);

   123 #else

   124   return JDK_Version::is_gte_jdk17x_version() ?

   125     "Oracle Corporation" : "Sun Microsystems Inc.";

   126 #endif

   127 }

   130 const char* Abstract_VM_Version::vm_info_string() {

   131   switch (Arguments::mode()) {

   132     case Arguments::_int:

   133       return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";

   134     case Arguments::_mixed:

   135       return UseSharedSpaces ? "mixed mode, sharing"       :  "mixed mode";

   136     case Arguments::_comp:

   137       return UseSharedSpaces ? "compiled mode, sharing"    : "compiled mode";

   138   };

   139   ShouldNotReachHere();

   140   return "";

   141 }

   143 // NOTE: do *not* use stringStream. this function is called by

   144 //       fatal error handler. if the crash is in native thread,

   145 //       stringStream cannot get resource allocated and will SEGV.

   146 const char* Abstract_VM_Version::vm_release() {

   147   return VM_RELEASE;

   148 }

   150 #define OS       LINUX_ONLY("linux")             \

   151                  WINDOWS_ONLY("windows")         \

   152                  SOLARIS_ONLY("solaris")

   154 #ifdef ZERO

   155 #define CPU      ZERO_LIBARCH

   156 #else

   157 #define CPU      IA32_ONLY("x86")                \

   158                  IA64_ONLY("ia64")               \

   159                  AMD64_ONLY("amd64")             \

   160                  ARM_ONLY("arm")                 \

   161                  PPC_ONLY("ppc")                 \

   162                  SPARC_ONLY("sparc")

   163 #endif // ZERO

   165 const char *Abstract_VM_Version::vm_platform_string() {

   166   return OS "-" CPU;

   167 }

   169 const char* Abstract_VM_Version::internal_vm_info_string() {

   170   #ifndef HOTSPOT_BUILD_USER

   171     #define HOTSPOT_BUILD_USER unknown

   172   #endif

   174   #ifndef HOTSPOT_BUILD_COMPILER

   175     #ifdef _MSC_VER

   176       #if   _MSC_VER == 1100

   177         #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"

   178       #elif _MSC_VER == 1200

   179         #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"

   180       #elif _MSC_VER == 1310

   181         #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"

   182       #elif _MSC_VER == 1400

   183         #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"

   184       #elif _MSC_VER == 1500

   185         #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"

   186       #else

   187         #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)

   188       #endif

   189     #elif defined(__SUNPRO_CC)

   190       #if   __SUNPRO_CC == 0x420

   191         #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"

   192       #elif __SUNPRO_CC == 0x500

   193         #define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)

   194       #elif __SUNPRO_CC == 0x520

   195         #define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)

   196       #elif __SUNPRO_CC == 0x580

   197         #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"

   198       #elif __SUNPRO_CC == 0x590

   199         #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"

   200       #elif __SUNPRO_CC == 0x5100

   201         #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"

   202       #else

   203         #define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)

   204       #endif

   205     #elif defined(__GNUC__)

   206         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__

   207     #else

   208       #define HOTSPOT_BUILD_COMPILER "unknown compiler"

   209     #endif

   210   #endif

   213   return VMNAME " (" VM_RELEASE ") for " OS "-" CPU

   214          " JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__

   215          " by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;

   216 }

   218 unsigned int Abstract_VM_Version::jvm_version() {

   219   return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |

   220          ((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |

   221          (Abstract_VM_Version::vm_build_number() & 0xFF);

   222 }

   225 void VM_Version_init() {

   226   VM_Version::initialize();

   228 #ifndef PRODUCT

   229   if (PrintMiscellaneous && Verbose) {

   230     os::print_cpu_info(tty);

   231   }

   232 #endif

   233 }

   235 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(

   236                                                       unsigned int num,

   237                                                       unsigned int den,

   238                                                       unsigned int switch_pt) {

   239   if (FLAG_IS_DEFAULT(ParallelGCThreads)) {

   240     assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");

   241     // For very large machines, there are diminishing returns

   242     // for large numbers of worker threads.  Instead of

   243     // hogging the whole system, use a fraction of the workers for every

   244     // processor after the first 8.  For example, on a 72 cpu machine

   245     // and a chosen fraction of 5/8

   246     // use 8 + (72 - 8) * (5/8) == 48 worker threads.

   247     unsigned int ncpus = (unsigned int) os::active_processor_count();

   248     return (ncpus <= switch_pt) ?

   249            ncpus :

   250           (switch_pt + ((ncpus - switch_pt) * num) / den);

   251   } else {

   252     return ParallelGCThreads;

   253   }

   254 }

   256 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {

   257   return nof_parallel_worker_threads(5, 8, 8);

   258 }

   261 // Does not set the _initialized flag since it is

   262 // a global flag.

   263 unsigned int Abstract_VM_Version::parallel_worker_threads() {

   264   if (!_parallel_worker_threads_initialized) {

   265     if (FLAG_IS_DEFAULT(ParallelGCThreads)) {

   266       _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();

   267     } else {

   268       _parallel_worker_threads = ParallelGCThreads;

   269     }

   270     _parallel_worker_threads_initialized = true;

   271   }

   272   return _parallel_worker_threads;

   273 }

src/share/vm/runtime/vm_version.cpp@0715f0cf171d

src/share/vm/runtime/vm_version.cpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/runtime/vm_version.cpp@0715f0cf171d

src/share/vm/runtime/vm_version.cpp