jdk8-mips64-public/hotspot: src/os_cpu/solaris_sparc/vm/vm_version_solaris

src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp@1e9a9d2e6509 (annotated)

src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp

Thu, 21 Oct 2010 11:55:10 -0700

author: never
date: Thu, 21 Oct 2010 11:55:10 -0700
changeset 2262: 1e9a9d2e6509
parent 1907: c18cbe5936b8
child 2269: ae065c367d93
permissions: -rw-r--r--

6970683: improvements to hs_err output
Reviewed-by: kvn, jrose, dholmes, coleenp

 /*
  * Copyright (c) 2006, 2009, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 # include "incls/_precompiled.incl"
 # include "incls/_vm_version_solaris_sparc.cpp.incl"
 # include <sys/auxv.h>
 # include <sys/auxv_SPARC.h>
 # include <sys/systeminfo.h>
 // We need to keep these here as long as we have to build on Solaris
 // versions before 10.
 #ifndef SI_ARCHITECTURE_32
 #define SI_ARCHITECTURE_32      516     /* basic 32-bit SI_ARCHITECTURE */
 #endif
 #ifndef SI_ARCHITECTURE_64
 #define SI_ARCHITECTURE_64      517     /* basic 64-bit SI_ARCHITECTURE */
 #endif
 static void do_sysinfo(int si, const char* string, int* features, int mask) {
   char   tmp;
   size_t bufsize = sysinfo(si, &tmp, 1);
   // All SI defines used below must be supported.
   guarantee(bufsize != -1, "must be supported");
   char* buf = (char*) malloc(bufsize);
   if (buf == NULL)
     return;
   if (sysinfo(si, buf, bufsize) == bufsize) {
     // Compare the string.
     if (strcmp(buf, string) == 0) {
       *features |= mask;
     }
   }
   free(buf);
 }
 int VM_Version::platform_features(int features) {
   // getisax(2), SI_ARCHITECTURE_32, and SI_ARCHITECTURE_64 are
   // supported on Solaris 10 and later.
   if (os::Solaris::supports_getisax()) {
 #ifndef PRODUCT
     if (PrintMiscellaneous && Verbose)
       tty->print_cr("getisax(2) supported.");
 #endif
     // Check 32-bit architecture.
     do_sysinfo(SI_ARCHITECTURE_32, "sparc", &features, v8_instructions_m);
     // Check 64-bit architecture.
     do_sysinfo(SI_ARCHITECTURE_64, "sparcv9", &features, generic_v9_m);
     // Extract valid instruction set extensions.
     uint_t av;
     uint_t avn = os::Solaris::getisax(&av, 1);
     assert(avn == 1, "should only return one av");
     if (av & AV_SPARC_MUL32)  features |= hardware_mul32_m;
     if (av & AV_SPARC_DIV32)  features |= hardware_div32_m;
     if (av & AV_SPARC_FSMULD) features |= hardware_fsmuld_m;
     if (av & AV_SPARC_V8PLUS) features |= v9_instructions_m;
     if (av & AV_SPARC_POPC)   features |= hardware_popc_m;
     if (av & AV_SPARC_VIS)    features |= vis1_instructions_m;
     if (av & AV_SPARC_VIS2)   features |= vis2_instructions_m;
   } else {
     // getisax(2) failed, use the old legacy code.
 #ifndef PRODUCT
     if (PrintMiscellaneous && Verbose)
       tty->print_cr("getisax(2) not supported.");
 #endif
     char   tmp;
     size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1);
     char*  buf     = (char*) malloc(bufsize);
     if (buf != NULL) {
       if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) {
         // Figure out what kind of sparc we have
         char *sparc_string = strstr(buf, "sparc");
         if (sparc_string != NULL) {              features |= v8_instructions_m;
           if (sparc_string[5] == 'v') {
             if (sparc_string[6] == '8') {
               if (sparc_string[7] == '-') {      features |= hardware_mul32_m;
                                                  features |= hardware_div32_m;
               } else if (sparc_string[7] == 'p') features |= generic_v9_m;
               else                               features |= generic_v8_m;
             } else if (sparc_string[6] == '9')   features |= generic_v9_m;
           }
         }
         // Check for visualization instructions
         char *vis = strstr(buf, "vis");
         if (vis != NULL) {                       features |= vis1_instructions_m;
           if (vis[3] == '2')                     features |= vis2_instructions_m;
         }
       }
       free(buf);
     }
   }
   // Determine the machine type.
   do_sysinfo(SI_MACHINE, "sun4v", &features, sun4v_m);
   return features;
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp@1e9a9d2e6509 (annotated)

src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp