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

6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
Summary: Initial checkin of JSDT code
Reviewed-by: acorn, sbohne

     1 /*

     2  * Copyright 1998-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any 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

    97   #define VMTYPE COMPILER1_PRESENT("Client")   \

    98                  COMPILER2_PRESENT("Server")

    99 #endif // TIERED

   100 #endif // KERNEL

   102 #ifndef HOTSPOT_VM_DISTRO

   103   #error HOTSPOT_VM_DISTRO must be defined

   104 #endif

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

   107 const char* Abstract_VM_Version::vm_name() {

   108   return VMNAME;

   109 }

   112 const char* Abstract_VM_Version::vm_vendor() {

   113 #ifdef VENDOR

   114   return XSTR(VENDOR);

   115 #else

   116   return "Sun Microsystems Inc.";

   117 #endif

   118 }

   121 const char* Abstract_VM_Version::vm_info_string() {

   122   switch (Arguments::mode()) {

   123     case Arguments::_int:

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

   125     case Arguments::_mixed:

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

   127     case Arguments::_comp:

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

   129   };

   130   ShouldNotReachHere();

   131   return "";

   132 }

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

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

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

   137 const char* Abstract_VM_Version::vm_release() {

   138   return VM_RELEASE;

   139 }

   141 #define OS       LINUX_ONLY("linux")             \

   142                  WINDOWS_ONLY("windows")         \

   143                  SOLARIS_ONLY("solaris")

   145 #define CPU      IA32_ONLY("x86")                \

   146                  IA64_ONLY("ia64")               \

   147                  AMD64_ONLY("amd64")             \

   148                  SPARC_ONLY("sparc")

   150 const char *Abstract_VM_Version::vm_platform_string() {

   151   return OS "-" CPU;

   152 }

   154 const char* Abstract_VM_Version::internal_vm_info_string() {

   155   #ifndef HOTSPOT_BUILD_USER

   156     #define HOTSPOT_BUILD_USER unknown

   157   #endif

   159   #ifndef HOTSPOT_BUILD_COMPILER

   160     #ifdef _MSC_VER

   161       #if   _MSC_VER == 1100

   162         #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"

   163       #elif _MSC_VER == 1200

   164         #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"

   165       #elif _MSC_VER == 1310

   166         #define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1"

   167       #elif _MSC_VER == 1400

   168         #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0"

   169       #else

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

   171       #endif

   172     #elif defined(__SUNPRO_CC)

   173       #if   __SUNPRO_CC == 0x420

   174         #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"

   175       #elif __SUNPRO_CC == 0x500

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

   177       #elif __SUNPRO_CC == 0x520

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

   179       #elif __SUNPRO_CC == 0x580

   180         #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"

   181       #elif __SUNPRO_CC == 0x590

   182         #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"

   183       #else

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

   185       #endif

   186     #elif defined(__GNUC__)

   187         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__

   188     #else

   189       #define HOTSPOT_BUILD_COMPILER "unknown compiler"

   190     #endif

   191   #endif

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

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

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

   197 }

   199 unsigned int Abstract_VM_Version::jvm_version() {

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

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

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

   203 }

   206 void VM_Version_init() {

   207   VM_Version::initialize();

   209 #ifndef PRODUCT

   210   if (PrintMiscellaneous && Verbose) {

   211     os::print_cpu_info(tty);

   212   }

   213 #endif

   214 }

   216 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(

   217                                                       unsigned int num,

   218                                                       unsigned int den,

   219                                                       unsigned int switch_pt) {

   220   if (FLAG_IS_DEFAULT(ParallelGCThreads)) {

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

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

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

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

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

   226     // and a chosen fraction of 5/8

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

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

   229     return (ncpus <= switch_pt) ?

   230            ncpus :

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

   232   } else {

   233     return ParallelGCThreads;

   234   }

   235 }

   237 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {

   238   return nof_parallel_worker_threads(5, 8, 8);

   239 }

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

   243 // a global flag.

   244 unsigned int Abstract_VM_Version::parallel_worker_threads() {

   245   if (!_parallel_worker_threads_initialized) {

   246     if (FLAG_IS_DEFAULT(ParallelGCThreads)) {

   247       _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();

   248     } else {

   249       _parallel_worker_threads = ParallelGCThreads;

   250     }

   251     _parallel_worker_threads_initialized = true;

   252   }

   253   return _parallel_worker_threads;

   254 }

src/share/vm/runtime/vm_version.cpp@018d5b58dd4f

src/share/vm/runtime/vm_version.cpp

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

src/share/vm/runtime/vm_version.cpp@018d5b58dd4f

src/share/vm/runtime/vm_version.cpp