mirror of
https://github.com/dart-lang/sdk
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89e24c1aef
TEST=ci (forthcoming) Change-Id: I3d34ab3af721267f9c586f4a9becdd374455cc76 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/313182 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if defined(DART_HOST_OS_WINDOWS)
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#include "vm/cpuid.h"
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#include "vm/cpuinfo.h"
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// __cpuid()
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#include <intrin.h> // NOLINT
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#include <string.h> // NOLINT
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#include "platform/assert.h"
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namespace dart {
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CpuInfoMethod CpuInfo::method_ = kCpuInfoDefault;
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const char* CpuInfo::fields_[kCpuInfoMax] = {};
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void CpuInfo::Init() {
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#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
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method_ = kCpuInfoCpuId;
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// Initialize the CpuId information.
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CpuId::Init();
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fields_[kCpuInfoProcessor] = "Processor";
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fields_[kCpuInfoModel] = "Hardware";
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fields_[kCpuInfoHardware] = "Hardware";
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fields_[kCpuInfoFeatures] = "Features";
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fields_[kCpuInfoArchitecture] = nullptr;
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#elif defined(HOST_ARCH_ARM) || defined(HOST_ARCH_ARM64)
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// We only rely on the base ARM64 version, so we don't need dynamic feature
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// detection.
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method_ = kCpuInfoNone;
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#else
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#error Unrecognized target architecture
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#endif
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}
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void CpuInfo::Cleanup() {
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if (method_ == kCpuInfoCpuId) {
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CpuId::Cleanup();
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} else {
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ASSERT(method_ == kCpuInfoNone);
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}
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}
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bool CpuInfo::FieldContains(CpuInfoIndices idx, const char* search_string) {
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if (method_ == kCpuInfoCpuId) {
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return CpuId::field(idx);
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} else {
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UNREACHABLE();
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}
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}
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const char* CpuInfo::ExtractField(CpuInfoIndices idx) {
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if (method_ == kCpuInfoCpuId) {
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return CpuId::field(idx);
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} else if (method_ == kCpuInfoNone) {
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if (idx == kCpuInfoHardware) {
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return "Generic ARM64";
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}
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UNREACHABLE();
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} else {
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UNREACHABLE();
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}
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}
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bool CpuInfo::HasField(const char* field) {
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if (method_ == kCpuInfoCpuId) {
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return (strcmp(field, fields_[kCpuInfoProcessor]) == 0) ||
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(strcmp(field, fields_[kCpuInfoModel]) == 0) ||
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(strcmp(field, fields_[kCpuInfoHardware]) == 0) ||
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(strcmp(field, fields_[kCpuInfoFeatures]) == 0);
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} else if (method_ == kCpuInfoNone) {
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return false;
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} else {
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UNREACHABLE();
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}
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}
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} // namespace dart
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#endif // defined(DART_HOST_OS_WINDOWS)
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