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

7194254: jstack reports wrong thread priorities
Reviewed-by: dholmes, sla, fparain
Contributed-by: Dmytro Sheyko <dmytro_sheyko@hotmail.com>

     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  */

    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

    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 unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;

    49 int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;

    51 #ifndef HOTSPOT_RELEASE_VERSION

    52   #error HOTSPOT_RELEASE_VERSION must be defined

    53 #endif

    54 #ifndef JRE_RELEASE_VERSION

    55   #error JRE_RELEASE_VERSION must be defined

    56 #endif

    57 #ifndef HOTSPOT_BUILD_TARGET

    58   #error HOTSPOT_BUILD_TARGET must be defined

    59 #endif

    61 #ifdef PRODUCT

    62   #define VM_RELEASE HOTSPOT_RELEASE_VERSION

    63 #else

    64   #define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET

    65 #endif

    67 // HOTSPOT_RELEASE_VERSION must follow the release version naming convention

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

    69 int Abstract_VM_Version::_vm_major_version = 0;

    70 int Abstract_VM_Version::_vm_minor_version = 0;

    71 int Abstract_VM_Version::_vm_build_number = 0;

    72 bool Abstract_VM_Version::_initialized = false;

    73 int Abstract_VM_Version::_parallel_worker_threads = 0;

    74 bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;

    76 void Abstract_VM_Version::initialize() {

    77   if (_initialized) {

    78     return;

    79   }

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

    82   // Expecting the next vm_version format:

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

    84   char* vm_major_ver = vm_version;

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

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

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

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

    89   vm_minor_ver += 1;

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

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

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

    93   vm_build_num += 2;

    95   _vm_major_version = atoi(vm_major_ver);

    96   _vm_minor_version = atoi(vm_minor_ver);

    97   _vm_build_number  = atoi(vm_build_num);

    99   os::free(vm_version);

   100   _initialized = true;

   101 }

   103 #if defined(_LP64)

   104   #define VMLP "64-Bit "

   105 #else

   106   #define VMLP ""

   107 #endif

   109 #ifdef KERNEL

   110   #define VMTYPE "Kernel"

   111 #else // KERNEL

   112 #ifdef TIERED

   113   #define VMTYPE "Server"

   114 #else // TIERED

   115 #ifdef ZERO

   116 #ifdef SHARK

   117   #define VMTYPE "Shark"

   118 #else // SHARK

   119   #define VMTYPE "Zero"

   120 #endif // SHARK

   121 #else // ZERO

   122    #define VMTYPE COMPILER1_PRESENT("Client")   \

   123                   COMPILER2_PRESENT("Server")

   124 #endif // ZERO

   125 #endif // TIERED

   126 #endif // KERNEL

   128 #ifndef HOTSPOT_VM_DISTRO

   129   #error HOTSPOT_VM_DISTRO must be defined

   130 #endif

   131 #define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"

   133 const char* Abstract_VM_Version::vm_name() {

   134   return VMNAME;

   135 }

   138 const char* Abstract_VM_Version::vm_vendor() {

   139 #ifdef VENDOR

   140   return XSTR(VENDOR);

   141 #else

   142   return JDK_Version::is_gte_jdk17x_version() ?

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

   144 #endif

   145 }

   148 const char* Abstract_VM_Version::vm_info_string() {

   149   switch (Arguments::mode()) {

   150     case Arguments::_int:

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

   152     case Arguments::_mixed:

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

   154     case Arguments::_comp:

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

   156   };

   157   ShouldNotReachHere();

   158   return "";

   159 }

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

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

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

   164 const char* Abstract_VM_Version::vm_release() {

   165   return VM_RELEASE;

   166 }

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

   169 //       fatal error handlers. if the crash is in native thread,

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

   171 const char* Abstract_VM_Version::jre_release_version() {

   172   return JRE_RELEASE_VERSION;

   173 }

   175 #define OS       LINUX_ONLY("linux")             \

   176                  WINDOWS_ONLY("windows")         \

   177                  SOLARIS_ONLY("solaris")         \

   178                  BSD_ONLY("bsd")

   180 #ifdef ZERO

   181 #define CPU      ZERO_LIBARCH

   182 #else

   183 #define CPU      IA32_ONLY("x86")                \

   184                  IA64_ONLY("ia64")               \

   185                  AMD64_ONLY("amd64")             \

   186                  ARM_ONLY("arm")                 \

   187                  PPC_ONLY("ppc")                 \

   188                  SPARC_ONLY("sparc")

   189 #endif // ZERO

   191 const char *Abstract_VM_Version::vm_platform_string() {

   192   return OS "-" CPU;

   193 }

   195 const char* Abstract_VM_Version::internal_vm_info_string() {

   196   #ifndef HOTSPOT_BUILD_USER

   197     #define HOTSPOT_BUILD_USER unknown

   198   #endif

   200   #ifndef HOTSPOT_BUILD_COMPILER

   201     #ifdef _MSC_VER

   202       #if   _MSC_VER == 1100

   203         #define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"

   204       #elif _MSC_VER == 1200

   205         #define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"

   206       #elif _MSC_VER == 1310

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

   208       #elif _MSC_VER == 1400

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

   210       #elif _MSC_VER == 1500

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

   212       #else

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

   214       #endif

   215     #elif defined(__SUNPRO_CC)

   216       #if   __SUNPRO_CC == 0x420

   217         #define HOTSPOT_BUILD_COMPILER "Workshop 4.2"

   218       #elif __SUNPRO_CC == 0x500

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

   220       #elif __SUNPRO_CC == 0x520

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

   222       #elif __SUNPRO_CC == 0x580

   223         #define HOTSPOT_BUILD_COMPILER "Workshop 5.8"

   224       #elif __SUNPRO_CC == 0x590

   225         #define HOTSPOT_BUILD_COMPILER "Workshop 5.9"

   226       #elif __SUNPRO_CC == 0x5100

   227         #define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"

   228       #else

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

   230       #endif

   231     #elif defined(__GNUC__)

   232         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__

   233     #else

   234       #define HOTSPOT_BUILD_COMPILER "unknown compiler"

   235     #endif

   236   #endif

   238   #ifndef FLOAT_ARCH

   239     #if defined(__SOFTFP__)

   240       #define FLOAT_ARCH "-sflt"

   241     #elif defined(E500V2)

   242       #define FLOAT_ARCH "-e500v2"

   243     #elif defined(ARM)

   244       #define FLOAT_ARCH "-vfp"

   245     #elif defined(PPC)

   246       #define FLOAT_ARCH "-hflt"

   247     #else

   248       #define FLOAT_ARCH ""

   249     #endif

   250   #endif

   252   return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH

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

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

   255 }

   257 const char *Abstract_VM_Version::vm_build_user() {

   258   return HOTSPOT_BUILD_USER;

   259 }

   261 unsigned int Abstract_VM_Version::jvm_version() {

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

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

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

   265 }

   268 void VM_Version_init() {

   269   VM_Version::initialize();

   271 #ifndef PRODUCT

   272   if (PrintMiscellaneous && Verbose) {

   273     os::print_cpu_info(tty);

   274   }

   275 #endif

   276 }

   278 unsigned int Abstract_VM_Version::nof_parallel_worker_threads(

   279                                                       unsigned int num,

   280                                                       unsigned int den,

   281                                                       unsigned int switch_pt) {

   282   if (FLAG_IS_DEFAULT(ParallelGCThreads)) {

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

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

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

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

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

   288     // and a chosen fraction of 5/8

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

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

   291     return (ncpus <= switch_pt) ?

   292            ncpus :

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

   294   } else {

   295     return ParallelGCThreads;

   296   }

   297 }

   299 unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {

   300   return nof_parallel_worker_threads(5, 8, 8);

   301 }

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

   305 // a global flag.

   306 unsigned int Abstract_VM_Version::parallel_worker_threads() {

   307   if (!_parallel_worker_threads_initialized) {

   308     if (FLAG_IS_DEFAULT(ParallelGCThreads)) {

   309       _parallel_worker_threads = VM_Version::calc_parallel_worker_threads();

   310     } else {

   311       _parallel_worker_threads = ParallelGCThreads;

   312     }

   313     _parallel_worker_threads_initialized = true;

   314   }

   315   return _parallel_worker_threads;

   316 }

src/share/vm/runtime/vm_version.cpp@a7509aff1b06

src/share/vm/runtime/vm_version.cpp

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

src/share/vm/runtime/vm_version.cpp@a7509aff1b06

src/share/vm/runtime/vm_version.cpp