Files
sdk/runtime/vm/cpuinfo_win.cc
T
zra@google.com fd366da1cf Updates refactoring of CPU feature detection
with fix that uses cpuid for Intel/Linux.

R=asiva@google.com

Review URL: https://codereview.chromium.org//136303012

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32980 260f80e4-7a28-3924-810f-c04153c831b5
2014-02-24 19:28:30 +00:00

88 lines
2.2 KiB
C++

// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/globals.h"
#if defined(TARGET_OS_WINDOWS)
#include "vm/cpuinfo.h"
#include "vm/cpuid.h"
// __cpuid()
#include <intrin.h> // NOLINT
#include <string.h> // NOLINT
#include "platform/assert.h"
namespace dart {
CpuInfoMethod CpuInfo::method_ = kCpuInfoDefault;
const char* CpuInfo::fields_[kCpuInfoMax] = {0};
void CpuInfo::InitOnce() {
method_ = kCpuInfoCpuId;
// Initialize the CpuId information.
CpuId::InitOnce();
fields_[kCpuInfoProcessor] = "Processor";
fields_[kCpuInfoModel] = "Hardware";
fields_[kCpuInfoHardware] = "Hardware";
fields_[kCpuInfoFeatures] = "Features";
}
void CpuInfo::Cleanup() {
CpuId::Cleanup();
}
bool CpuInfo::FieldContains(CpuInfoIndices idx, const char* search_string) {
ASSERT(method_ != kCpuInfoDefault);
return strstr(CpuId::field(idx), search_string);
}
bool CpuInfo::FieldContainsByString(const char* field,
const char* search_string) {
ASSERT(method_ != kCpuInfoDefault);
for (int i = 0; i < kCpuInfoMax; i++) {
if (strcmp(field, fields_[i]) == 0) {
return FieldContains(static_cast<CpuInfoIndices>(i), search_string);
}
}
UNIMPLEMENTED();
return false;
}
const char* CpuInfo::ExtractField(CpuInfoIndices idx) {
ASSERT(method_ != kCpuInfoDefault);
return CpuId::field(idx);
}
const char* CpuInfo::ExtractFieldByString(const char* field) {
ASSERT(method_ != kCpuInfoDefault);
for (int i = 0; i < kCpuInfoMax; i++) {
if (strcmp(field, fields_[i]) == 0) {
return ExtractField(static_cast<CpuInfoIndices>(i));
}
}
UNIMPLEMENTED();
return NULL;
}
bool CpuInfo::HasField(const char* field) {
ASSERT(method_ != kCpuInfoDefault);
return (strcmp(field, fields_[kCpuInfoProcessor]) == 0) ||
(strcmp(field, fields_[kCpuInfoModel]) == 0) ||
(strcmp(field, fields_[kCpuInfoHardware]) == 0) ||
(strcmp(field, fields_[kCpuInfoFeatures]) == 0);
}
} // namespace dart
#endif // defined(TARGET_OS_WINDOWS)