Updates refactoring of CPU feature detection

runtime/vm/cpuinfo_android.cc

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file

[siva, 2014/02/21 19:28:55]

2014

[zra, 2014/02/21 21:51:55]

Done.

+// 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_ANDROID)
+
+#include "vm/cpuinfo.h"
+#include "vm/proccpuinfo.h"
+
+#include "platform/assert.h"
+
+namespace dart {
+
+CpuInfoMethod CpuInfo::method_ = kCpuInfoDefault;
+const char* CpuInfo::fields_[kCpuInfoMax] = {0};
+
+void CpuInfo::InitOnce(CpuInfoMethod method) {
+  // On Android, only the system call method is supported.
+  ASSERT((method == kCpuInfoDefault) || (method == kCpuInfoSystem));
+  method_ = kCpuInfoSystem;
+
+  // Initialize our read from /proc/cpuinfo.
+  ProcCpuInfo::InitOnce();
+
+#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
+  fields_[kCpuInfoProcessor] = "vendor_id";
+  fields_[kCpuInfoModel] = "model name";
+  fields_[kCpuInfoHardware] = "model name";
+  fields_[kCpuInfoFeatures] = "flags";
+#elif defined(HOST_ARCH_ARM)
+  fields_[kCpuInfoProcessor] = "Processor";
+  fields_[kCpuInfoModel] = "model name";
+  fields_[kCpuInfoHardware] = "Hardware";
+  fields_[kCpuInfoFeatures] = "Features";
+#elif defined(HOST_ARCH_MIPS)
+  fields_[kCpuInfoProcessor] = "system type";
+  fields_[kCpuInfoModel] = "cpu model";
+  fields_[kCpuInfoHardware] = "cpu model";
+  fields_[kCpuInfoFeatures] = "ASEs implemented";
+#else
+#error Unrecognized target architecture
+#endif
+}
+
+
+bool CpuInfo::FieldContains(CpuInfoIndices idx, const char* search_string) {
+  return ProcCpuInfo::FieldContains(FieldName(idx), search_string);
+}
+
+
+bool CpuInfo::FieldContainsByString(const char* field,
+                                    const char* search_string) {
+  return ProcCpuInfo::FieldContains(field, search_string);
+}
+
+
+const char* CpuInfo::ExtractField(CpuInfoIndices idx) {
+  return ProcCpuInfo::ExtractField(FieldName(idx));
+}
+
+
+const char* CpuInfo::ExtractFieldByString(const char* field) {
+  return ProcCpuInfo::ExtractField(field);
+}
+
+
+bool CpuInfo::HasField(const char* field) {
+  ProcCpuInfo::HasField(field);
+}
+
+}  // namespace dart
+
+#endif  // defined(TARGET_OS_ANDROID)