1 /*
   2  * Copyright (c) 2005, 2015, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <ctype.h>
  29 #include <assert.h>
  30 
  31 #include "jvm.h"
  32 #include "jdk_util.h"
  33 
  34 #ifndef JDK_UPDATE_VERSION
  35    /* if not defined set to 00 */
  36    #define JDK_UPDATE_VERSION "00"
  37 #endif
  38 
  39 JNIEXPORT void
  40 JDK_GetVersionInfo0(jdk_version_info* info, size_t info_size) {
  41     /* These JDK_* macros are set at Makefile or the command line */
  42     const unsigned int jdk_major_version =
  43         (unsigned int) atoi(JDK_MAJOR_VERSION);
  44     const unsigned int jdk_minor_version =
  45         (unsigned int) atoi(JDK_MINOR_VERSION);
  46     const unsigned int jdk_micro_version =
  47         (unsigned int) atoi(JDK_MICRO_VERSION);
  48 
  49     const char* jdk_build_string = JDK_BUILD_NUMBER;
  50     char build_number[4];
  51     unsigned int jdk_build_number = 0;
  52 
  53     const char* jdk_update_string = JDK_UPDATE_VERSION;
  54     unsigned int jdk_update_version = 0;
  55     char update_ver[3];
  56     char jdk_special_version = '\0';
  57 
  58     /* If the JDK_BUILD_NUMBER is of format bXX and XX is an integer
  59      * XX is the jdk_build_number.
  60      */
  61     size_t len = strlen(jdk_build_string);
  62     if (jdk_build_string[0] == 'b' && len >= 2) {
  63         size_t i = 0;
  64         for (i = 1; i < len; i++) {
  65             if (isdigit(jdk_build_string[i])) {
  66                 build_number[i-1] = jdk_build_string[i];
  67             } else {
  68                 // invalid build number
  69                 i = -1;
  70                 break;
  71             }
  72         }
  73         if (i == len) {
  74             build_number[len-1] = '\0';
  75             jdk_build_number = (unsigned int) atoi(build_number) ;
  76         }
  77     }
  78 
  79     assert(jdk_build_number <= 255);
  80 
  81     if (strlen(jdk_update_string) == 2 || strlen(jdk_update_string) == 3) {
  82         if (isdigit(jdk_update_string[0]) && isdigit(jdk_update_string[1])) {
  83             update_ver[0] = jdk_update_string[0];
  84             update_ver[1] = jdk_update_string[1];
  85             update_ver[2] = '\0';
  86             jdk_update_version = (unsigned int) atoi(update_ver);
  87             if (strlen(jdk_update_string) == 3) {
  88                 jdk_special_version = jdk_update_string[2];
  89             }
  90         }
  91     }
  92 
  93     memset(info, 0, info_size);
  94     info->jdk_version = ((jdk_major_version & 0xFF) << 24) |
  95                         ((jdk_minor_version & 0xFF) << 16) |
  96                         ((jdk_micro_version & 0xFF) << 8)  |
  97                         (jdk_build_number & 0xFF);
  98     info->update_version = jdk_update_version;
  99     info->special_update_version = (unsigned int) jdk_special_version;

 100     info->thread_park_blocker = 1;
 101     // Advertise presence of sun.misc.PostVMInitHook:
 102     // future optimization: detect if this is enabled.
 103     info->post_vm_init_hook_enabled = 1;
 104     info->pending_list_uses_discovered_field = 1;
 105 }
--- EOF ---