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; }
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-T") != NULL) { features |= T_family_m; if (strstr(impl, "SPARC-T1") != NULL) { features |= T1_model_m; } } else { assert(strstr(impl, "SPARC") != NULL, "should be sparc"); } free((void*)impl); break; } } // for( } } assert(strcmp(implementation, "UNKNOWN") != 0, "unknown cpu info (changed kstat interface?)"); kstat_close(kc); } return features; }