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8165482: java in ldoms, with cpu-arch=generic has problems

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Reviewed-by: dholmes, alanbur
This commit is contained in:
Martin Walsh 2016-10-17 19:12:28 -04:00
parent c13329714b
commit 811ccf69ad
2 changed files with 32 additions and 33 deletions
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16
hotspot/src/cpu/sparc/vm/vm_version_sparc.cpp
View File

@ -179,7 +179,7 @@ void VM_Version::initialize() {
assert((OptoLoopAlignment % relocInfo::addr_unit()) == 0, "alignment is not a multiple of NOP size");
char buf[512];
jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
jio_snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
(has_v9() ? ", v9" : (has_v8() ? ", v8" : "")),
(has_hardware_popc() ? ", popc" : ""),
(has_vis1() ? ", vis1" : ""),
@ -193,6 +193,7 @@ void VM_Version::initialize() {
(has_sha512() ? ", sha512" : ""),
(has_crc32c() ? ", crc32c" : ""),
(is_ultra3() ? ", ultra3" : ""),
(has_sparc5_instr() ? ", sparc5" : ""),
(is_sun4v() ? ", sun4v" : ""),
(is_niagara_plus() ? ", niagara_plus" : (is_niagara() ? ", niagara" : "")),
(is_sparc64() ? ", sparc64" : ""),
@ -487,16 +488,11 @@ int VM_Version::parse_features(const char* implementation) {
if (strstr(impl, "SPARC-T1") != NULL) {
features |= T1_model_m;
}
} else if (strstr(impl, "SUN4V-CPU") != NULL) {
// Generic or migration class LDOM
features |= T_family_m;
} else {
if (strstr(impl, "SPARC") == NULL) {
#ifndef PRODUCT
// kstat on Solaris 8 virtual machines (branded zones)
// returns "(unsupported)" implementation. Solaris 8 is not
// supported anymore, but include this check to be on the
// safe side.
warning("Can't parse CPU implementation = '%s', assume generic SPARC", impl);
#endif
}
log_info(os, cpu)("Failed to parse CPU implementation = '%s'", impl);
}
os::free((void*)impl);
return features;

49
hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp
View File

@ -440,36 +440,39 @@ int VM_Version::platform_features(int features) {
features |= sun4v_m;
}
bool use_solaris_12_api = false;
Sysinfo impl(SI_CPUBRAND);
if (impl.valid()) {
// If SI_CPUBRAND works, that means Solaris 12 API to get the cache line sizes
// is available to us as well
use_solaris_12_api = true;
features |= parse_features(impl.value());
// If SI_CPUBRAND works, that means Solaris 12 API to get the cache line sizes
// is available to us as well
Sysinfo cpu_info(SI_CPUBRAND);
bool use_solaris_12_api = cpu_info.valid();
const char* impl;
int impl_m = 0;
if (use_solaris_12_api) {
impl = cpu_info.value();
log_info(os, cpu)("Parsing CPU implementation from %s", impl);
impl_m = parse_features(impl);
} else {
// Otherwise use 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;
bool has_implementation = false;
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) {
implementation = KSTAT_NAMED_STR_PTR(&knm[i]);
has_implementation = true;
log_info(os, cpu)("cpu_info.implementation: %s", implementation);
features |= parse_features(implementation);
break;
if (kc != NULL) {
kstat_t* ksp = kstat_lookup(kc, (char*)"cpu_info", -1, NULL);
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) {
impl = KSTAT_NAMED_STR_PTR(&knm[i]);
log_info(os, cpu)("Parsing CPU implementation from %s", impl);
impl_m = parse_features(impl);
break;
}
}
} // for(
}
}
kstat_close(kc);
}
assert(has_implementation, "unknown cpu info (changed kstat interface?)");
kstat_close(kc);
}
assert(impl_m != 0, "Unknown CPU implementation %s", impl);
features |= impl_m;
bool is_sun4v = (features & sun4v_m) != 0;
if (use_solaris_12_api && is_sun4v) {