|
|
|
// Copyright 2006-2008 the V8 project authors. All rights reserved.
|
|
|
|
// Redistribution and use in source and binary forms, with or without
|
|
|
|
// modification, are permitted provided that the following conditions are
|
|
|
|
// met:
|
|
|
|
//
|
|
|
|
// * Redistributions of source code must retain the above copyright
|
|
|
|
// notice, this list of conditions and the following disclaimer.
|
|
|
|
// * Redistributions in binary form must reproduce the above
|
|
|
|
// copyright notice, this list of conditions and the following
|
|
|
|
// disclaimer in the documentation and/or other materials provided
|
|
|
|
// with the distribution.
|
|
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
|
|
// contributors may be used to endorse or promote products derived
|
|
|
|
// from this software without specific prior written permission.
|
|
|
|
//
|
|
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
|
|
|
|
// 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 "allocation.h"
|
|
|
|
|
|
|
|
namespace v8 {
|
|
|
|
namespace internal {
|
|
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// CPU
|
|
|
|
//
|
|
|
|
// This class 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 functions.
|
|
|
|
|
|
|
|
class CPU : public AllStatic {
|
|
|
|
public:
|
|
|
|
// Initializes the cpu architecture support. Called once at VM startup.
|
|
|
|
static void Setup();
|
|
|
|
|
|
|
|
static bool SupportsCrankshaft();
|
|
|
|
|
|
|
|
// Flush instruction cache.
|
|
|
|
static void FlushICache(void* start, size_t size);
|
|
|
|
|
|
|
|
// Try to activate a system level debugger.
|
|
|
|
static void DebugBreak();
|
|
|
|
};
|
|
|
|
|
|
|
|
} } // namespace v8::internal
|
|
|
|
|
|
|
|
#endif // V8_CPU_H_
|