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7daf246e4b
http://groups.google.com/group/airbag-dev/browse_thread/thread/5f19f13fc172c4e0 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@31 4c0a9323-5329-0410-9bdc-e9ce6186880e
77 lines
3.0 KiB
C++
77 lines
3.0 KiB
C++
// Copyright (c) 2006, Google Inc.
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// All rights reserved.
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//
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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 disclaimer
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// in the documentation and/or other materials provided with the
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// 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 from
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// 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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// memory_region.h: Access to memory regions.
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//
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// A MemoryRegion provides virtual access to a range of memory. It is an
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// abstraction allowing the actual source of memory to be independent of
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// methods which need to access a virtual memory space.
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//
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// Author: Mark Mentovai
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#ifndef PROCESSOR_MEMORY_REGION_H__
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#define PROCESSOR_MEMORY_REGION_H__
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#include "google/airbag_types.h"
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namespace google_airbag {
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class MemoryRegion {
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public:
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virtual ~MemoryRegion() {}
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// The base address of this memory region.
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virtual u_int64_t GetBase() = 0;
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// The size of this memory region.
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virtual u_int32_t GetSize() = 0;
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// Access to data of various sizes within the memory region. address
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// is a pointer to read, and it must lie within the memory region as
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// defined by its base address and size. The location pointed to by
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// value is set to the value at address. Byte-swapping is performed
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// if necessary so that the value is appropriate for the running
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// program. Returns true on success. Fails and returns false if address
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// is out of the region's bounds (after considering the width of value),
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// or for other types of errors.
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virtual bool GetMemoryAtAddress(u_int64_t address, u_int8_t* value) = 0;
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virtual bool GetMemoryAtAddress(u_int64_t address, u_int16_t* value) = 0;
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virtual bool GetMemoryAtAddress(u_int64_t address, u_int32_t* value) = 0;
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virtual bool GetMemoryAtAddress(u_int64_t address, u_int64_t* value) = 0;
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};
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} // namespace google_airbag
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#endif // PROCESSOR_MEMORY_REGION_H__
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