1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,252 @@
1.4 +/*
1.5 + * Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "precompiled.hpp"
1.29 +#include "runtime/os.hpp"
1.30 +#include "vm_version_sparc.hpp"
1.31 +
1.32 +# include <sys/auxv.h>
1.33 +# include <sys/auxv_SPARC.h>
1.34 +# include <sys/systeminfo.h>
1.35 +# include <kstat.h>
1.36 +
1.37 +// We need to keep these here as long as we have to build on Solaris
1.38 +// versions before 10.
1.39 +#ifndef SI_ARCHITECTURE_32
1.40 +#define SI_ARCHITECTURE_32 516 /* basic 32-bit SI_ARCHITECTURE */
1.41 +#endif
1.42 +
1.43 +#ifndef SI_ARCHITECTURE_64
1.44 +#define SI_ARCHITECTURE_64 517 /* basic 64-bit SI_ARCHITECTURE */
1.45 +#endif
1.46 +
1.47 +static void do_sysinfo(int si, const char* string, int* features, int mask) {
1.48 + char tmp;
1.49 + size_t bufsize = sysinfo(si, &tmp, 1);
1.50 +
1.51 + // All SI defines used below must be supported.
1.52 + guarantee(bufsize != -1, "must be supported");
1.53 +
1.54 + char* buf = (char*) malloc(bufsize);
1.55 +
1.56 + if (buf == NULL)
1.57 + return;
1.58 +
1.59 + if (sysinfo(si, buf, bufsize) == bufsize) {
1.60 + // Compare the string.
1.61 + if (strcmp(buf, string) == 0) {
1.62 + *features |= mask;
1.63 + }
1.64 + }
1.65 +
1.66 + free(buf);
1.67 +}
1.68 +
1.69 +int VM_Version::platform_features(int features) {
1.70 + // getisax(2), SI_ARCHITECTURE_32, and SI_ARCHITECTURE_64 are
1.71 + // supported on Solaris 10 and later.
1.72 + if (os::Solaris::supports_getisax()) {
1.73 +
1.74 + // Check 32-bit architecture.
1.75 + do_sysinfo(SI_ARCHITECTURE_32, "sparc", &features, v8_instructions_m);
1.76 +
1.77 + // Check 64-bit architecture.
1.78 + do_sysinfo(SI_ARCHITECTURE_64, "sparcv9", &features, generic_v9_m);
1.79 +
1.80 + // Extract valid instruction set extensions.
1.81 + uint_t avs[2];
1.82 + uint_t avn = os::Solaris::getisax(avs, 2);
1.83 + assert(avn <= 2, "should return two or less av's");
1.84 + uint_t av = avs[0];
1.85 +
1.86 +#ifndef PRODUCT
1.87 + if (PrintMiscellaneous && Verbose) {
1.88 + tty->print("getisax(2) returned: " PTR32_FORMAT, av);
1.89 + if (avn > 1) {
1.90 + tty->print(", " PTR32_FORMAT, avs[1]);
1.91 + }
1.92 + tty->cr();
1.93 + }
1.94 +#endif
1.95 +
1.96 + if (av & AV_SPARC_MUL32) features |= hardware_mul32_m;
1.97 + if (av & AV_SPARC_DIV32) features |= hardware_div32_m;
1.98 + if (av & AV_SPARC_FSMULD) features |= hardware_fsmuld_m;
1.99 + if (av & AV_SPARC_V8PLUS) features |= v9_instructions_m;
1.100 + if (av & AV_SPARC_POPC) features |= hardware_popc_m;
1.101 + if (av & AV_SPARC_VIS) features |= vis1_instructions_m;
1.102 + if (av & AV_SPARC_VIS2) features |= vis2_instructions_m;
1.103 + if (avn > 1) {
1.104 + uint_t av2 = avs[1];
1.105 +#ifndef AV2_SPARC_SPARC5
1.106 +#define AV2_SPARC_SPARC5 0x00000008 /* The 29 new fp and sub instructions */
1.107 +#endif
1.108 + if (av2 & AV2_SPARC_SPARC5) features |= sparc5_instructions_m;
1.109 + }
1.110 +
1.111 + // Next values are not defined before Solaris 10
1.112 + // but Solaris 8 is used for jdk6 update builds.
1.113 +#ifndef AV_SPARC_ASI_BLK_INIT
1.114 +#define AV_SPARC_ASI_BLK_INIT 0x0080 /* ASI_BLK_INIT_xxx ASI */
1.115 +#endif
1.116 + if (av & AV_SPARC_ASI_BLK_INIT) features |= blk_init_instructions_m;
1.117 +
1.118 +#ifndef AV_SPARC_FMAF
1.119 +#define AV_SPARC_FMAF 0x0100 /* Fused Multiply-Add */
1.120 +#endif
1.121 + if (av & AV_SPARC_FMAF) features |= fmaf_instructions_m;
1.122 +
1.123 +#ifndef AV_SPARC_FMAU
1.124 +#define AV_SPARC_FMAU 0x0200 /* Unfused Multiply-Add */
1.125 +#endif
1.126 + if (av & AV_SPARC_FMAU) features |= fmau_instructions_m;
1.127 +
1.128 +#ifndef AV_SPARC_VIS3
1.129 +#define AV_SPARC_VIS3 0x0400 /* VIS3 instruction set extensions */
1.130 +#endif
1.131 + if (av & AV_SPARC_VIS3) features |= vis3_instructions_m;
1.132 +
1.133 +#ifndef AV_SPARC_CBCOND
1.134 +#define AV_SPARC_CBCOND 0x10000000 /* compare and branch instrs supported */
1.135 +#endif
1.136 + if (av & AV_SPARC_CBCOND) features |= cbcond_instructions_m;
1.137 +
1.138 +#ifndef AV_SPARC_AES
1.139 +#define AV_SPARC_AES 0x00020000 /* aes instrs supported */
1.140 +#endif
1.141 + if (av & AV_SPARC_AES) features |= aes_instructions_m;
1.142 +
1.143 + } else {
1.144 + // getisax(2) failed, use the old legacy code.
1.145 +#ifndef PRODUCT
1.146 + if (PrintMiscellaneous && Verbose)
1.147 + tty->print_cr("getisax(2) is not supported.");
1.148 +#endif
1.149 +
1.150 + char tmp;
1.151 + size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1);
1.152 + char* buf = (char*) malloc(bufsize);
1.153 +
1.154 + if (buf != NULL) {
1.155 + if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) {
1.156 + // Figure out what kind of sparc we have
1.157 + char *sparc_string = strstr(buf, "sparc");
1.158 + if (sparc_string != NULL) { features |= v8_instructions_m;
1.159 + if (sparc_string[5] == 'v') {
1.160 + if (sparc_string[6] == '8') {
1.161 + if (sparc_string[7] == '-') { features |= hardware_mul32_m;
1.162 + features |= hardware_div32_m;
1.163 + } else if (sparc_string[7] == 'p') features |= generic_v9_m;
1.164 + else features |= generic_v8_m;
1.165 + } else if (sparc_string[6] == '9') features |= generic_v9_m;
1.166 + }
1.167 + }
1.168 +
1.169 + // Check for visualization instructions
1.170 + char *vis = strstr(buf, "vis");
1.171 + if (vis != NULL) { features |= vis1_instructions_m;
1.172 + if (vis[3] == '2') features |= vis2_instructions_m;
1.173 + }
1.174 + }
1.175 + free(buf);
1.176 + }
1.177 + }
1.178 +
1.179 + // Determine the machine type.
1.180 + do_sysinfo(SI_MACHINE, "sun4v", &features, sun4v_m);
1.181 +
1.182 + {
1.183 + // Using kstat to determine the machine type.
1.184 + kstat_ctl_t* kc = kstat_open();
1.185 + kstat_t* ksp = kstat_lookup(kc, (char*)"cpu_info", -1, NULL);
1.186 + const char* implementation = "UNKNOWN";
1.187 + if (ksp != NULL) {
1.188 + if (kstat_read(kc, ksp, NULL) != -1 && ksp->ks_data != NULL) {
1.189 + kstat_named_t* knm = (kstat_named_t *)ksp->ks_data;
1.190 + for (int i = 0; i < ksp->ks_ndata; i++) {
1.191 + if (strcmp((const char*)&(knm[i].name),"implementation") == 0) {
1.192 +#ifndef KSTAT_DATA_STRING
1.193 +#define KSTAT_DATA_STRING 9
1.194 +#endif
1.195 + if (knm[i].data_type == KSTAT_DATA_CHAR) {
1.196 + // VM is running on Solaris 8 which does not have value.str.
1.197 + implementation = &(knm[i].value.c[0]);
1.198 + } else if (knm[i].data_type == KSTAT_DATA_STRING) {
1.199 + // VM is running on Solaris 10.
1.200 +#ifndef KSTAT_NAMED_STR_PTR
1.201 + // Solaris 8 was used to build VM, define the structure it misses.
1.202 + struct str_t {
1.203 + union {
1.204 + char *ptr; /* NULL-term string */
1.205 + char __pad[8]; /* 64-bit padding */
1.206 + } addr;
1.207 + uint32_t len; /* # bytes for strlen + '\0' */
1.208 + };
1.209 +#define KSTAT_NAMED_STR_PTR(knptr) (( (str_t*)&((knptr)->value) )->addr.ptr)
1.210 +#endif
1.211 + implementation = KSTAT_NAMED_STR_PTR(&knm[i]);
1.212 + }
1.213 +#ifndef PRODUCT
1.214 + if (PrintMiscellaneous && Verbose) {
1.215 + tty->print_cr("cpu_info.implementation: %s", implementation);
1.216 + }
1.217 +#endif
1.218 + // Convert to UPPER case before compare.
1.219 + char* impl = strdup(implementation);
1.220 +
1.221 + for (int i = 0; impl[i] != 0; i++)
1.222 + impl[i] = (char)toupper((uint)impl[i]);
1.223 + if (strstr(impl, "SPARC64") != NULL) {
1.224 + features |= sparc64_family_m;
1.225 + } else if (strstr(impl, "SPARC-M") != NULL) {
1.226 + // M-series SPARC is based on T-series.
1.227 + features |= (M_family_m | T_family_m);
1.228 + } else if (strstr(impl, "SPARC-T") != NULL) {
1.229 + features |= T_family_m;
1.230 + if (strstr(impl, "SPARC-T1") != NULL) {
1.231 + features |= T1_model_m;
1.232 + }
1.233 + } else {
1.234 + if (strstr(impl, "SPARC") == NULL) {
1.235 +#ifndef PRODUCT
1.236 + // kstat on Solaris 8 virtual machines (branded zones)
1.237 + // returns "(unsupported)" implementation.
1.238 + warning("kstat cpu_info implementation = '%s', should contain SPARC", impl);
1.239 +#endif
1.240 + implementation = "SPARC";
1.241 + }
1.242 + }
1.243 + free((void*)impl);
1.244 + break;
1.245 + }
1.246 + } // for(
1.247 + }
1.248 + }
1.249 + assert(strcmp(implementation, "UNKNOWN") != 0,
1.250 + "unknown cpu info (changed kstat interface?)");
1.251 + kstat_close(kc);
1.252 + }
1.253 +
1.254 + return features;
1.255 +}
