Move platform abstraction to base library

src/cpu.h

-// Copyright 2006-2013 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This module contains the architecture-specific code. This make the rest of
-// the code less dependent on differences between different processor
-// architecture.
-// The classes have the same definition for all architectures. The
-// implementation for a particular architecture is put in cpu_<arch>.cc.
-// The build system then uses the implementation for the target architecture.
-//
-
-#ifndef V8_CPU_H_
-#define V8_CPU_H_
-
-#include "src/allocation.h"
-
-namespace v8 {
-namespace internal {
-
-// ----------------------------------------------------------------------------
-// CPU
-//
-// Query information about the processor.
-//
-// This class also has static methods for the architecture specific functions.
-// Add methods here to cope with differences between the supported
-// architectures. For each architecture the file cpu_<arch>.cc contains the
-// implementation of these static functions.
-
-class CPU V8_FINAL BASE_EMBEDDED {
- public:
-  CPU();
-
-  // x86 CPUID information
-  const char* vendor() const { return vendor_; }
-  int stepping() const { return stepping_; }
-  int model() const { return model_; }
-  int ext_model() const { return ext_model_; }
-  int family() const { return family_; }
-  int ext_family() const { return ext_family_; }
-  int type() const { return type_; }
-
-  // arm implementer/part information
-  int implementer() const { return implementer_; }
-  static const int ARM = 0x41;
-  static const int NVIDIA = 0x4e;
-  static const int QUALCOMM = 0x51;
-  int architecture() const { return architecture_; }
-  int part() const { return part_; }
-  static const int ARM_CORTEX_A5 = 0xc05;
-  static const int ARM_CORTEX_A7 = 0xc07;
-  static const int ARM_CORTEX_A8 = 0xc08;
-  static const int ARM_CORTEX_A9 = 0xc09;
-  static const int ARM_CORTEX_A12 = 0xc0c;
-  static const int ARM_CORTEX_A15 = 0xc0f;
-
-  // General features
-  bool has_fpu() const { return has_fpu_; }
-
-  // x86 features
-  bool has_cmov() const { return has_cmov_; }
-  bool has_sahf() const { return has_sahf_; }
-  bool has_mmx() const { return has_mmx_; }
-  bool has_sse() const { return has_sse_; }
-  bool has_sse2() const { return has_sse2_; }
-  bool has_sse3() const { return has_sse3_; }
-  bool has_ssse3() const { return has_ssse3_; }
-  bool has_sse41() const { return has_sse41_; }
-  bool has_sse42() const { return has_sse42_; }
-
-  // arm features
-  bool has_idiva() const { return has_idiva_; }
-  bool has_neon() const { return has_neon_; }
-  bool has_thumb2() const { return has_thumb2_; }
-  bool has_vfp() const { return has_vfp_; }
-  bool has_vfp3() const { return has_vfp3_; }
-  bool has_vfp3_d32() const { return has_vfp3_d32_; }
-
-  // Flush instruction cache.
-  static void FlushICache(void* start, size_t size);
-
- private:
-  char vendor_[13];
-  int stepping_;
-  int model_;
-  int ext_model_;
-  int family_;
-  int ext_family_;
-  int type_;
-  int implementer_;
-  int architecture_;
-  int part_;
-  bool has_fpu_;
-  bool has_cmov_;
-  bool has_sahf_;
-  bool has_mmx_;
-  bool has_sse_;
-  bool has_sse2_;
-  bool has_sse3_;
-  bool has_ssse3_;
-  bool has_sse41_;
-  bool has_sse42_;
-  bool has_idiva_;
-  bool has_neon_;
-  bool has_thumb2_;
-  bool has_vfp_;
-  bool has_vfp3_;
-  bool has_vfp3_d32_;
-};
-
-} }  // namespace v8::internal
-
-#endif  // V8_CPU_H_