Rose::BinaryAnalysis::Partitioner2::ModulesX86 Namespace Reference

Description

Disassembly and partitioning utilities for Intel x86 and amd64.

Classes
class	FunctionReturnDetector
	Basic block callback to detect function returns. More...
class	MatchAbbreviatedPrologue
	Matches an x86 MOV EDI,EDI; PUSH ESI function prologe. More...
class	MatchEnterPrologue
	Matches an x86 "ENTER xxx, 0" prologue. More...
class	MatchHotPatchPrologue
	Matches an x86 function prologue with hot patch. More...
class	MatchRetPadPush
	Match RET followed by PUSH with intervening no-op padding. More...
class	MatchStandardPrologue
	Matches an x86 function prologue. More...
class	SwitchSuccessors
	Basic block callback to detect "switch" statements. More...

Functions
bool	matchEnterAnyZero (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "ENTER x, 0".
Sawyer::Optional< rose_addr_t >	matchJmpConst (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "JMP constant".
bool	matchLeaCxMemBpConst (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "LEA ECX, [EBP + constant]" or variant.
bool	matchJmpMem (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "JMP [address]" or variant.
bool	matchMovBpSp (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "MOV EBP, ESP" or variant.
bool	matchMovDiDi (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "MOV EDI, EDI" or variant.
bool	matchPushBp (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "PUSH EBP" or variant.
bool	matchPushSi (const PartitionerConstPtr &, SgAsmX86Instruction *)
	Matches "PUSH SI" or variant.
std::vector< rose_addr_t >	scanCodeAddressTable (const PartitionerConstPtr &, AddressInterval &tableLimits, const AddressInterval &targetLimits, SwitchSuccessors::EntryType tableEntryType, size_t tableEntrySizeBytes, Sawyer::Optional< rose_addr_t > probableStartVa=Sawyer::Nothing(), size_t nSkippable=0)
	Reads a table of code addresses.
Sawyer::Optional< rose_addr_t >	findTableBase (SgAsmExpression *)
	Try to match a base+offset expression.

Function Documentation

matchJmpConst()

Sawyer::Optional< rose_addr_t > Rose::BinaryAnalysis::Partitioner2::ModulesX86::matchJmpConst	(	const PartitionerConstPtr &	,
		SgAsmX86Instruction *
	)

Matches "JMP constant".

Returns the constant if matched, nothing otherwise.

scanCodeAddressTable()

std::vector< rose_addr_t > Rose::BinaryAnalysis::Partitioner2::ModulesX86::scanCodeAddressTable	(	const PartitionerConstPtr &	,
		AddressInterval &	tableLimits,
		const AddressInterval &	targetLimits,
		SwitchSuccessors::EntryType	tableEntryType,
		size_t	tableEntrySizeBytes,
		Sawyer::Optional< rose_addr_t >	probableStartVa = Sawyer::Nothing(),
		size_t	nSkippable = 0
	)

Reads a table of code addresses.

Reads a table of code addresses from within the tableLimits memory range starting at either the specified probableStartVa or the beginning of the tableLimits. If nSkippable is positive, up to that many invalid entries can be skipped before actual valid entries are found. If no entries are skipped and the probableStartVa is larger than the minimum tableLimits then we also look backward from the probableStartVa to consume as many valid table entries as possible within the tableLimits. An entry is valid if it exists in read-only memory and its value (the target address) falls within targetLimits.

If valid table entries are found, and the table is some arbitrarily small number of entries, then it can be followed by zero or more single-byte indexes into the table entries.

Upon return, the tableLimits is adjusted to be the addresses where valid table entries were found unioned with the addresses of the optional post-table indexes. The return value is the valid table entries in the order they occur in the table.

findTableBase()

Sawyer::Optional< rose_addr_t > Rose::BinaryAnalysis::Partitioner2::ModulesX86::findTableBase

(

SgAsmExpression *

)

Try to match a base+offset expression.

Matches expressions like:

• base + register
• base + register * size
• [ base + register ]
• [ base + register * size ]

Returns the numeric value of base or nothing if the expression is not a recognized form.