| /* |
| * Copyright (c) 2006, 2012, 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 "precompiled.hpp" |
| #include "runtime/os.hpp" |
| #include "vm_version_sparc.hpp" |
| |
| # include <sys/auxv.h> |
| # include <sys/auxv_SPARC.h> |
| # include <sys/systeminfo.h> |
| # include <kstat.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()) { |
| |
| // 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"); |
| |
| #ifndef PRODUCT |
| if (PrintMiscellaneous && Verbose) |
| tty->print_cr("getisax(2) returned: " PTR32_FORMAT, av); |
| #endif |
| |
| 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; |
| |
| // Next values are not defined before Solaris 10 |
| // but Solaris 8 is used for jdk6 update builds. |
| #ifndef AV_SPARC_ASI_BLK_INIT |
| #define AV_SPARC_ASI_BLK_INIT 0x0080 /* ASI_BLK_INIT_xxx ASI */ |
| #endif |
| if (av & AV_SPARC_ASI_BLK_INIT) features |= blk_init_instructions_m; |
| |
| #ifndef AV_SPARC_FMAF |
| #define AV_SPARC_FMAF 0x0100 /* Fused Multiply-Add */ |
| #endif |
| if (av & AV_SPARC_FMAF) features |= fmaf_instructions_m; |
| |
| #ifndef AV_SPARC_FMAU |
| #define AV_SPARC_FMAU 0x0200 /* Unfused Multiply-Add */ |
| #endif |
| if (av & AV_SPARC_FMAU) features |= fmau_instructions_m; |
| |
| #ifndef AV_SPARC_VIS3 |
| #define AV_SPARC_VIS3 0x0400 /* VIS3 instruction set extensions */ |
| #endif |
| if (av & AV_SPARC_VIS3) features |= vis3_instructions_m; |
| |
| #ifndef AV_SPARC_CBCOND |
| #define AV_SPARC_CBCOND 0x10000000 /* compare and branch instrs supported */ |
| #endif |
| if (av & AV_SPARC_CBCOND) features |= cbcond_instructions_m; |
| |
| } else { |
| // getisax(2) failed, use the old legacy code. |
| #ifndef PRODUCT |
| if (PrintMiscellaneous && Verbose) |
| tty->print_cr("getisax(2) is 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); |
| |
| { |
| // Using kstat to determine the machine type. |
| kstat_ctl_t* kc = kstat_open(); |
| kstat_t* ksp = kstat_lookup(kc, (char*)"cpu_info", -1, NULL); |
| const char* implementation = "UNKNOWN"; |
| if (ksp != NULL) { |
| if (kstat_read(kc, ksp, NULL) != -1 && ksp->ks_data != NULL) { |
| kstat_named_t* knm = (kstat_named_t *)ksp->ks_data; |
| for (int i = 0; i < ksp->ks_ndata; i++) { |
| if (strcmp((const char*)&(knm[i].name),"implementation") == 0) { |
| #ifndef KSTAT_DATA_STRING |
| #define KSTAT_DATA_STRING 9 |
| #endif |
| if (knm[i].data_type == KSTAT_DATA_CHAR) { |
| // VM is running on Solaris 8 which does not have value.str. |
| implementation = &(knm[i].value.c[0]); |
| } else if (knm[i].data_type == KSTAT_DATA_STRING) { |
| // VM is running on Solaris 10. |
| #ifndef KSTAT_NAMED_STR_PTR |
| // Solaris 8 was used to build VM, define the structure it misses. |
| struct str_t { |
| union { |
| char *ptr; /* NULL-term string */ |
| char __pad[8]; /* 64-bit padding */ |
| } addr; |
| uint32_t len; /* # bytes for strlen + '\0' */ |
| }; |
| #define KSTAT_NAMED_STR_PTR(knptr) (( (str_t*)&((knptr)->value) )->addr.ptr) |
| #endif |
| implementation = KSTAT_NAMED_STR_PTR(&knm[i]); |
| } |
| #ifndef PRODUCT |
| if (PrintMiscellaneous && Verbose) { |
| tty->print_cr("cpu_info.implementation: %s", implementation); |
| } |
| #endif |
| // Convert to UPPER case before compare. |
| char* impl = strdup(implementation); |
| |
| for (int i = 0; impl[i] != 0; i++) |
| impl[i] = (char)toupper((uint)impl[i]); |
| if (strstr(impl, "SPARC64") != NULL) { |
| features |= sparc64_family_m; |
| } else if (strstr(impl, "SPARC-M") != NULL) { |
| // M-series SPARC is based on T-series. |
| features |= (M_family_m | T_family_m); |
| } else if (strstr(impl, "SPARC-T") != NULL) { |
| features |= T_family_m; |
| if (strstr(impl, "SPARC-T1") != NULL) { |
| features |= T1_model_m; |
| } |
| } else { |
| if (strstr(impl, "SPARC") == NULL) { |
| #ifndef PRODUCT |
| // kstat on Solaris 8 virtual machines (branded zones) |
| // returns "(unsupported)" implementation. |
| warning("kstat cpu_info implementation = '%s', should contain SPARC", impl); |
| #endif |
| implementation = "SPARC"; |
| } |
| } |
| free((void*)impl); |
| break; |
| } |
| } // for( |
| } |
| } |
| assert(strcmp(implementation, "UNKNOWN") != 0, |
| "unknown cpu info (changed kstat interface?)"); |
| kstat_close(kc); |
| } |
| |
| return features; |
| } |
