Callback to detect padding. More...

#include <Partitioner.h>

Inheritance diagram for Partitioner::FindDataPadding:

Collaboration diagram for Partitioner::FindDataPadding:

Public Member Functions
	FindDataPadding ()

virtual bool	operator() (bool enabled, const Args &args)
	The actual callback function. More...

Public Member Functions inherited from Partitioner::ByteRangeCallback
virtual	~ByteRangeCallback ()

Public Attributes
std::vector< SgUnsignedCharList >	patterns
	Pattern of padding, repeated at least minimum_size times. More...

size_t	minimum_nrep
	Minimum number of matched patterns to be considered padding. More...

size_t	maximum_nrep
	Maximum number of mathced patterns to be considered padding. More...

bool	begins_contiguously
	If true, pattern must start immediately after a function. More...

bool	ends_contiguously
	If true, pattern must end immediately before a function. More...

rose_addr_t	maximum_range_size
	Skip this callback if the range is larger than this. More...

size_t	nfound
	Total number of blocks found by this callback. More...

Detailed Description

Callback to detect padding.

This callback looks for repeated patterns of bytes that are used for padding and adds them as a static data block to the preceding function. Multiple patterns can be specified per callback object for efficiency, and the first pattern that matches will be used. Each pattern is matched as many times as possible (up to a user-specified maximum). Once a repeated matching of the pattern is found, it is considered padding only if it matches at least some minimum (user-specified) number of times and is anchored to (contiguous with) a preceding and/or following function according to the begins_contiguously and ends_contiguously properties.

This callback can be invoked by scan_unassigned_bytes(), scan_intrafunc_bytes(), or scan_interfunc_bytes() depending on the kind of padding for which it is searching.

Definition at line 1209 of file Partitioner.h.

Constructor & Destructor Documentation

Partitioner::FindDataPadding::FindDataPadding ( )

inline

Definition at line 1218 of file Partitioner.h.

Member Function Documentation

bool Partitioner::FindDataPadding::operator()	(	bool	enabled,
		const Args &	args
	)

virtual

The actual callback function.

This needs to be defined in subclasses.

Implements Partitioner::ByteRangeCallback.

Definition at line 1826 of file Partitioner.C.

References Partitioner::append(), SgAsmBlock::BLK_PADDING, Partitioner::debug, Range< T >::empty(), RangeMap< R, T >::end(), Partitioner::Function::entry_va, RangeMap< R, T >::find(), Partitioner::find_db_starting(), RangeMap< R, T >::find_prior(), Range< T >::first(), Range< T >::last(), max, Range< rose_addr_t >::maximum(), Range< rose_addr_t >::minimum(), offset, Partitioner::ByteRangeCallback::Args::partitioner, Partitioner::ByteRangeCallback::Args::range, Partitioner::ByteRangeCallback::Args::ranges, MemoryMap::read(), Range< T >::resize(), Partitioner::ByteRangeCallback::Args::restrict_map, Partitioner::ro_map, and Range< T >::size().

Member Data Documentation

std::vector<SgUnsignedCharList> Partitioner::FindDataPadding::patterns

Pattern of padding, repeated at least minimum_size times.

Definition at line 1210 of file Partitioner.h.

Referenced by Partitioner::post_cfg().

size_t Partitioner::FindDataPadding::minimum_nrep

Minimum number of matched patterns to be considered padding.

Definition at line 1211 of file Partitioner.h.

Referenced by Partitioner::post_cfg().

size_t Partitioner::FindDataPadding::maximum_nrep

Maximum number of mathced patterns to be considered padding.

Definition at line 1212 of file Partitioner.h.

Referenced by Partitioner::post_cfg().

bool Partitioner::FindDataPadding::begins_contiguously

If true, pattern must start immediately after a function.

Definition at line 1213 of file Partitioner.h.

Referenced by Partitioner::post_cfg().

bool Partitioner::FindDataPadding::ends_contiguously

If true, pattern must end immediately before a function.

Definition at line 1214 of file Partitioner.h.

Referenced by Partitioner::post_cfg().

rose_addr_t Partitioner::FindDataPadding::maximum_range_size

Skip this callback if the range is larger than this.

Definition at line 1215 of file Partitioner.h.

size_t Partitioner::FindDataPadding::nfound

Total number of blocks found by this callback.

Definition at line 1216 of file Partitioner.h.

The documentation for this struct was generated from the following files:

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation