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annotate src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp @ 1972:f95d63e2154a

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6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
author stefank
date Tue, 23 Nov 2010 13:22:55 -0800
parents ae065c367d93
children c04052fd6ae1
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1 /*
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2 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "runtime/os.hpp"
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27 #include "vm_version_sparc.hpp"
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28
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29 # include <sys/auxv.h>
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30 # include <sys/auxv_SPARC.h>
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31 # include <sys/systeminfo.h>
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32
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33 // We need to keep these here as long as we have to build on Solaris
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34 // versions before 10.
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35 #ifndef SI_ARCHITECTURE_32
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36 #define SI_ARCHITECTURE_32 516 /* basic 32-bit SI_ARCHITECTURE */
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37 #endif
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38
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39 #ifndef SI_ARCHITECTURE_64
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40 #define SI_ARCHITECTURE_64 517 /* basic 64-bit SI_ARCHITECTURE */
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41 #endif
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42
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43 static void do_sysinfo(int si, const char* string, int* features, int mask) {
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44 char tmp;
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45 size_t bufsize = sysinfo(si, &tmp, 1);
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46
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47 // All SI defines used below must be supported.
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48 guarantee(bufsize != -1, "must be supported");
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49
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50 char* buf = (char*) malloc(bufsize);
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51
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52 if (buf == NULL)
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53 return;
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54
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55 if (sysinfo(si, buf, bufsize) == bufsize) {
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56 // Compare the string.
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57 if (strcmp(buf, string) == 0) {
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58 *features |= mask;
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59 }
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60 }
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61
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62 free(buf);
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63 }
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64
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65 int VM_Version::platform_features(int features) {
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66 // getisax(2), SI_ARCHITECTURE_32, and SI_ARCHITECTURE_64 are
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67 // supported on Solaris 10 and later.
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68 if (os::Solaris::supports_getisax()) {
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69
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70 // Check 32-bit architecture.
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71 do_sysinfo(SI_ARCHITECTURE_32, "sparc", &features, v8_instructions_m);
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72
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73 // Check 64-bit architecture.
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74 do_sysinfo(SI_ARCHITECTURE_64, "sparcv9", &features, generic_v9_m);
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75
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76 // Extract valid instruction set extensions.
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77 uint_t av;
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78 uint_t avn = os::Solaris::getisax(&av, 1);
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79 assert(avn == 1, "should only return one av");
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80
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81 #ifndef PRODUCT
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82 if (PrintMiscellaneous && Verbose)
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83 tty->print_cr("getisax(2) returned: " PTR32_FORMAT, av);
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84 #endif
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85
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86 if (av & AV_SPARC_MUL32) features |= hardware_mul32_m;
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87 if (av & AV_SPARC_DIV32) features |= hardware_div32_m;
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88 if (av & AV_SPARC_FSMULD) features |= hardware_fsmuld_m;
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89 if (av & AV_SPARC_V8PLUS) features |= v9_instructions_m;
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90 if (av & AV_SPARC_POPC) features |= hardware_popc_m;
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91 if (av & AV_SPARC_VIS) features |= vis1_instructions_m;
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92 if (av & AV_SPARC_VIS2) features |= vis2_instructions_m;
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93
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94 // Next values are not defined before Solaris 10
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95 // but Solaris 8 is used for jdk6 update builds.
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96 #ifndef AV_SPARC_ASI_BLK_INIT
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97 #define AV_SPARC_ASI_BLK_INIT 0x0080 /* ASI_BLK_INIT_xxx ASI */
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98 #endif
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99 #ifndef AV_SPARC_FMAF
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100 #define AV_SPARC_FMAF 0x0100 /* Sparc64 Fused Multiply-Add */
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101 #endif
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102 if (av & AV_SPARC_ASI_BLK_INIT) features |= blk_init_instructions_m;
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103 if (av & AV_SPARC_FMAF) features |= fmaf_instructions_m;
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104 } else {
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105 // getisax(2) failed, use the old legacy code.
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106 #ifndef PRODUCT
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107 if (PrintMiscellaneous && Verbose)
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108 tty->print_cr("getisax(2) is not supported.");
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109 #endif
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110
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111 char tmp;
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112 size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1);
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113 char* buf = (char*) malloc(bufsize);
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114
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115 if (buf != NULL) {
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116 if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) {
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117 // Figure out what kind of sparc we have
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118 char *sparc_string = strstr(buf, "sparc");
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119 if (sparc_string != NULL) { features |= v8_instructions_m;
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120 if (sparc_string[5] == 'v') {
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121 if (sparc_string[6] == '8') {
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122 if (sparc_string[7] == '-') { features |= hardware_mul32_m;
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123 features |= hardware_div32_m;
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124 } else if (sparc_string[7] == 'p') features |= generic_v9_m;
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125 else features |= generic_v8_m;
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126 } else if (sparc_string[6] == '9') features |= generic_v9_m;
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127 }
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128 }
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129
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130 // Check for visualization instructions
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131 char *vis = strstr(buf, "vis");
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132 if (vis != NULL) { features |= vis1_instructions_m;
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133 if (vis[3] == '2') features |= vis2_instructions_m;
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134 }
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135 }
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136 free(buf);
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137 }
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138 }
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139
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140 // Determine the machine type.
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141 do_sysinfo(SI_MACHINE, "sun4v", &features, sun4v_m);
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142
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143 return features;
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144 }