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