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PLCrashAsyncDwarfEncoding.hpp
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PLCrashAsyncDwarfEncoding.hpp
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/*
* Copyright (c) 2013 Plausible Labs Cooperative, Inc.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef PLCRASH_ASYNC_DWARF_ENCODING_H
#define PLCRASH_ASYNC_DWARF_ENCODING_H 1
#include "PLCrashAsync.h"
#include "PLCrashAsyncImageList.h"
#include "PLCrashAsyncThread.h"
#include "PLCrashAsyncDwarfPrimitives.hpp"
#include "PLCrashAsyncDwarfFDE.hpp"
#include "PLCrashFeatureConfig.h"
#include "PLCrashMacros.h"
#if PLCRASH_FEATURE_UNWIND_DWARF
PLCR_CPP_BEGIN_NS
namespace async {
/**
* @internal
* @ingroup plcrash_async_dwarf
* @{
*/
/**
* @internal
*
* A DWARF frame reader. Performs DWARF eh_frame/debug_frame parsing from a backing memory object.
*/
class dwarf_frame_reader {
public:
plcrash_error_t init (plcrash_async_mobject_t *mobj,
const plcrash_async_byteorder_t *byteorder,
bool m64,
bool debug_frame);
plcrash_error_t find_fde (pl_vm_off_t offset,
pl_vm_address_t pc,
plcrash_async_dwarf_fde_info_t *fde_info);
private:
/** A memory object containing the DWARF data at the starting address. */
plcrash_async_mobject_t *_mobj;
/** The byte order of the encoded data. */
const plcrash_async_byteorder_t *_byteorder;
/** True if the target system uses 64-bit pointers, false if it uses 32-bit pointers. */
bool _m64;
/** True if this is a debug_frame section */
bool _debug_frame;
};
PLCR_CPP_END_NS
}
/*
* @}
*/
#endif /* PLCRASH_FEATURE_UNWIND_DWARF */
#endif /* PLCRASH_ASYNC_DWARF_ENCODING_H */