architecture module¶

`binaryninja.architecture.Architecture`()	`class Architecture` is the parent class for all CPU architectures.
`binaryninja.architecture.ArchitectureHook`(...)
`binaryninja.architecture.CoreArchitecture`(handle)
`binaryninja.architecture.InstructionBranch`(...)
`binaryninja.architecture.InstructionInfo`(...)
`binaryninja.architecture.InstructionTextToken`(...)	`class InstructionTextToken` is used to tell the core about the various components in the disassembly views.
`binaryninja.architecture.IntrinsicInfo`(...)
`binaryninja.architecture.IntrinsicInput`(type)
`binaryninja.architecture.RegisterInfo`(...)
`binaryninja.architecture.RegisterStackInfo`(...)

class Architecture[source]¶

Bases: object

class Architecture is the parent class for all CPU architectures. Subclasses of Architecture implement assembly, disassembly, IL lifting, and patching.

class Architecture has a metaclass with the additional methods register, and supports iteration:

>>> #List the architectures
>>> list(Architecture)
[<arch: aarch64>, <arch: armv7>, <arch: thumb2>, <arch: armv7eb>, <arch: thumb2eb>, <arch: mipsel32>, <arch: mips32>, <arch: ppc>, <arch: ppc64>, <arch: ppc_le>, <arch: ppc64_le>, <arch: x86_16>, <arch: x86>, <arch: x86_64>]
>>> #Register a new Architecture
>>> class MyArch(Architecture):
...  name = "MyArch"
...
>>> MyArch.register()
>>> list(Architecture)
[<arch: aarch64>, <arch: armv7>, <arch: thumb2>, <arch: armv7eb>, <arch: thumb2eb>, <arch: mipsel32>, <arch: mips32>, <arch: ppc>, <arch: ppc64>, <arch: ppc_le>, <arch: ppc64_le>, <arch: x86_16>, <arch: x86>, <arch: x86_64>, <arch: MyArch>]
>>>

For the purposes of this documentation the variable arch will be used in the following context

>>> from binaryninja import *
>>> arch = Architecture['x86']

Note

The max_instr_length property of an architecture is not necessarily representative of the maximum instruction size of the associated CPU architecture. Rather, it represents the maximum size of a potential instruction that the architecture plugin can handle. So for example, the value for x86 is 16 despite the lagest valid instruction being only 15 bytes long, and the value for mips32 is currently 8 because multiple instrutions are decoded looking for delay slots so they can be reordered.

always_branch(data: bytes, addr: int = 0) → Optional[bytes][source]¶

always_branch reads the instruction(s) in data at virtual address addr and returns a string of bytes of the same length which always branches.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched

Returns

string containing len(data) which always branches to the same location as the provided instruction

Return type

str

Example

>>> data = arch.always_branch(arch.assemble("je 10"), 0)
>>> arch.get_instruction_text(data, 0)
(['nop', '     '], 1)
>>> arch.get_instruction_text(data[1:], 0)
(['jmp', '     ', '0x9'], 5)
>>>

assemble(code: str, addr: int = 0) → bytes[source]¶

assemble converts the string of assembly instructions code loaded at virtual address addr to the byte representation of those instructions.

Note

Architecture subclasses should implement this method.

Architecture plugins can override this method to provide assembler functionality. This can be done by simply shelling out to an assembler like yasm or llvm-mc, since this method isn’t performance sensitive.

Note

It is important that the assembler used accepts a syntax identical to the one emitted by the disassembler. This will prevent confusing the user.

If there is an error in the input assembly, this function should raise a ValueError (with a reasonable error message).

Parameters

code (str) – string representation of the instructions to be assembled
addr (int) – virtual address that the instructions will be loaded at

Returns

the bytes for the assembled instructions

Return type

Python3 - a ‘bytes’ object; Python2 - a ‘bytes’ object

Example

>>> arch.assemble("je 10")
b'\x0f\x84\x04\x00\x00\x00'
>>>

convert_to_nop(data: bytes, addr: int = 0) → Optional[bytes][source]¶

convert_to_nop reads the instruction(s) in data at virtual address addr and returns a string of nop instructions of the same length as data.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched

Returns

string containing len(data) worth of no-operation instructions

Return type

str

Example

>>> arch.convert_to_nop(b"\x00\x00", 0)
b'\x90\x90'
>>>

get_associated_arch_by_address(addr: int) → Tuple[Architecture, int][source]¶

Parameters: addr (int) –
Return type: Tuple[Architecture, int]

get_default_flag_condition_low_level_il(cond: LowLevelILFlagCondition, sem_class: Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

cond (LowLevelILFlagCondition) –
sem_class (SemanticClassType) –
il (LowLevelILFunction) –

Return type

ExpressionIndex

get_default_flag_write_low_level_il(op: LowLevelILOperation, size: int, role: FlagRole, operands: List[Union[str, ILRegister, int]], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

op (LowLevelILOperation) –
size (int) –
role (FlagRole) –
operands (list(str) or list(int)) – a list of either items that are either string register names or constant integer values
il (LowLevelILFunction) –

Return type

ExpressionIndex index

get_flag_by_name(flag: FlagName) → FlagIndex[source]¶

get_flag_by_name get flag name for flag index.

Parameters: flag (FlagName) – flag name
Returns: flag index for flag name
Return type: FlagIndex

get_flag_condition_low_level_il(cond: LowLevelILFlagCondition, sem_class: Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

cond (LowLevelILFlagCondition) – Flag condition to be computed
sem_class (SemanticClassType) – Semantic class to be used (None for default semantics)
il (LowLevelILFunction) – LowLevelILFunction object to append ExpressionIndex objects to

Return type

ExpressionIndex

get_flag_index(flag: Union[FlagName, ILFlag, FlagIndex]) → FlagIndex[source]¶

Parameters: flag (Union[FlagName, ILFlag, FlagIndex]) –
Return type: FlagIndex

get_flag_name(flag: FlagIndex) → FlagName[source]¶

get_flag_name gets a flag name from a flag index.

Parameters: flag (int) – flag index
Returns: the corresponding flag name string
Return type: FlagName

get_flag_role(flag: FlagIndex, sem_class: Optional[SemanticClassIndex] = None) → FlagRole[source]¶

get_flag_role gets the role of a given flag.

Parameters

flag (int) – flag
sem_class (int) – optional semantic flag class

Returns

flag role

Return type

FlagRole

get_flag_write_low_level_il(op: LowLevelILOperation, size: int, write_type: Optional[FlagWriteTypeName], flag: Union[FlagName, ILFlag, FlagIndex], operands: List[Union[str, ILRegister, int]], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

op (LowLevelILOperation) –
size (int) –
write_type (str) –
flag (FlagType) –
operands (list(str) or list(int)) – a list of either items that are either string register names or constant integer values
il (LowLevelILFunction) –

Return type

lowlevelil.ExpressionIndex

get_flag_write_type_by_name(write_type: FlagWriteTypeName) → FlagWriteTypeIndex[source]¶

get_flag_write_type_by_name gets the flag write type name for the flag write type.

Parameters: write_type (str) – flag write type
Returns: flag write type
Return type: int

get_flag_write_type_name(write_type: FlagWriteTypeIndex) → FlagWriteTypeName[source]¶

get_flag_write_type_name gets the flag write type name for the given flag.

Parameters: write_type (FlagWriteTypeIndex) – flag
Returns: flag write type name
Return type: FlagWriteTypeName

get_flags_required_for_flag_condition(cond: LowLevelILFlagCondition, sem_class: Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]] = None)[source]¶

Parameters

cond (LowLevelILFlagCondition) –
sem_class (Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]]) –

get_instruction_info(data: bytes, addr: int) → Optional[InstructionInfo][source]¶

get_instruction_info returns an InstructionInfo object for the instruction at the given virtual address addr with data data.

Note

Architecture subclasses should implement this method.

Note

The instruction info object should always set the InstructionInfo.length to the instruction length, and the branches of the proper types should be added if the instruction is a branch.

If the instruction is a branch instruction architecture plugins should add a branch of the proper type:

BranchType

Description

UnconditionalBranch

Branch will always be taken

FalseBranch

False branch condition

TrueBranch

True branch condition

CallDestination

Branch is a call instruction (Branch with Link)

FunctionReturn

Branch returns from a function

SystemCall

System call instruction

IndirectBranch

Branch destination is a memory address or register

UnresolvedBranch

Branch destination is an unknown address

Parameters

data (str) – max_instruction_length bytes from the binary at virtual address addr
addr (int) – virtual address of bytes in data

Returns

the InstructionInfo for the current instruction

Return type

InstructionInfo

get_instruction_low_level_il(data: bytes, addr: int, il: LowLevelILFunction) → Optional[int][source]¶

get_instruction_low_level_il appends lowlevelil.ExpressionIndex objects to il for the instruction at the given virtual address addr with data data.

This is used to analyze arbitrary data at an address, if you are working with an existing binary, you likely want to be using Function.get_low_level_il_at.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – max_instruction_length bytes from the binary at virtual address addr
addr (int) – virtual address of bytes in data
il (LowLevelILFunction) – The function the current instruction belongs to

Returns

the length of the current instruction

Return type

int

get_instruction_low_level_il_instruction(bv: BinaryView, addr: int) → LowLevelILInstruction[source]¶

Parameters

bv (BinaryView) –
addr (int) –

Return type

LowLevelILInstruction

get_instruction_text(data: bytes, addr: int) → Optional[Tuple[List[InstructionTextToken], int]][source]¶

get_instruction_text returns a tuple containing a list of decoded InstructionTextToken objects and the bytes used at the given virtual address addr with data data.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – max_instruction_length bytes from the binary at virtual address addr
addr (int) – virtual address of bytes in data

Returns

a tuple containing the InstructionTextToken list and length of bytes decoded

Return type

tuple(list(InstructionTextToken), int)

get_intrinsic_index(intrinsic: Union[IntrinsicName, ILIntrinsic, IntrinsicIndex]) → IntrinsicIndex[source]¶

get_intrinsic_index gets an intrinsic index given an IntrinsicType.

Parameters: intrinsic (IntrinsicType) – intrinsic number
Returns: the corresponding intrinsic string
Return type: IntrinsicIndex

get_intrinsic_name(intrinsic: IntrinsicIndex) → IntrinsicName[source]¶

get_intrinsic_name gets an intrinsic name from an intrinsic number.

Parameters: intrinsic (int) – intrinsic number
Returns: the corresponding intrinsic string
Return type: IntrinsicName

get_low_level_il_from_bytes(data: bytes, addr: int) → LowLevelILInstruction[source]¶

get_low_level_il_from_bytes converts the instruction in bytes to il at the given virtual address

Parameters

data (str) – the bytes of the instruction
addr (int) – virtual address of bytes in data

Returns

a list of low level il instructions

Return type

LowLevelILInstruction

Example

>>> list(arch.get_low_level_il_from_bytes(b'\xeb\xfe', 0x40DEAD))
<il: jump(0x40dead)>
>>>

get_modified_regs_on_write(reg: RegisterName) → List[RegisterName][source]¶

get_modified_regs_on_write returns a list of register names that are modified when reg is written.

Parameters: reg (str) – string register name
Returns: list of register names
Return type: list(str)

get_reg_index(reg: Union[RegisterName, ILRegister, RegisterIndex]) → RegisterIndex[source]¶

Parameters: reg (Union[RegisterName, ILRegister, RegisterIndex]) –
Return type: RegisterIndex

get_reg_name(reg: RegisterIndex) → RegisterName[source]¶

get_reg_name gets a register name from a register index.

Parameters: reg (RegisterIndex) – register index
Returns: the corresponding register name
Return type: RegisterName

get_reg_stack_for_reg(reg: RegisterName) → Optional[RegisterStackName][source]¶

Parameters: reg (RegisterName) –
Return type: Optional[RegisterStackName]

get_reg_stack_index(reg_stack: Union[RegisterStackName, ILRegisterStack, RegisterStackIndex]) → RegisterStackIndex[source]¶

Parameters: reg_stack (Union[RegisterStackName, ILRegisterStack, RegisterStackIndex]) –
Return type: RegisterStackIndex

get_reg_stack_name(reg_stack: RegisterStackIndex) → RegisterStackName[source]¶

get_reg_stack_name gets a register stack name from a register stack number.

Parameters: reg_stack (int) – register stack number
Returns: the corresponding register string
Return type: RegisterStackName

get_semantic_flag_class_by_name(sem_class: SemanticClassName) → SemanticClassIndex[source]¶

get_semantic_flag_class_by_name gets the semantic flag class index by name.

Parameters: sem_class (int) – semantic flag class
Returns: semantic flag class index
Return type: str

get_semantic_flag_class_index(sem_class: Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]]) → SemanticClassIndex[source]¶

Parameters: sem_class (Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]]) –
Return type: SemanticClassIndex

get_semantic_flag_class_name(class_index: SemanticClassIndex) → SemanticClassName[source]¶

get_semantic_flag_class_name gets the name of a semantic flag class from the index.

Parameters: class_index (int) – class_index
Returns: the name of the semantic flag class
Return type: str

get_semantic_flag_group_by_name(sem_group: SemanticGroupName) → SemanticGroupIndex[source]¶

get_semantic_flag_group_by_name gets the semantic flag group index by name.

Parameters: sem_group (SemanticGroupName) – semantic flag group name
Returns: semantic flag group index
Return type: int

get_semantic_flag_group_index(sem_group: Union[SemanticGroupName, ILSemanticFlagGroup, SemanticGroupIndex]) → SemanticGroupIndex[source]¶

Parameters: sem_group (Union[SemanticGroupName, ILSemanticFlagGroup, SemanticGroupIndex]) –
Return type: SemanticGroupIndex

get_semantic_flag_group_low_level_il(sem_group: Optional[Union[SemanticGroupName, ILSemanticFlagGroup, SemanticGroupIndex]], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

sem_group (Optional[SemanticGroupType]) –
il (LowLevelILFunction) –

Return type

lowlevelil.ExpressionIndex

get_semantic_flag_group_name(group_index: SemanticGroupIndex) → SemanticGroupName[source]¶

get_semantic_flag_group_name gets the name of a semantic flag group from the index.

Parameters: group_index (int) – group_index
Returns: the name of the semantic flag group
Return type: str

get_view_type_constant(type_name: str, const_name: str, default_value: int = 0) → int[source]¶

This API is deprecated and should not be used anymore.

get_view_type_constant retrieves the view type constant for the given type_name and const_name.

Parameters

type_name (str) – the BinaryView type name of the constant to be retrieved
const_name (str) – the constant name to retrieved
default_value (int) – optional default value if the type_name is not present. default value is zero.

Returns

The BinaryView type constant or the default_value if not found

Return type

int

Example

>>> ELF_RELOC_COPY = 5
>>> arch.set_view_type_constant("ELF", "R_COPY", ELF_RELOC_COPY)
>>> arch.get_view_type_constant("ELF", "R_COPY")
5
>>> arch.get_view_type_constant("ELF", "NOT_HERE", 100)
100

invert_branch(data: bytes, addr: int = 0) → Optional[bytes][source]¶

invert_branch reads the instruction(s) in data at virtual address addr and returns a string of bytes of the same length which inverts the branch of provided instruction.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched

Returns

string containing len(data) which always branches to the same location as the provided instruction

Return type

str

Example

>>> arch.get_instruction_text(arch.invert_branch(arch.assemble("je 10"), 0), 0)
(['jne', '     ', '0xa'], 6)
>>> arch.get_instruction_text(arch.invert_branch(arch.assemble("jo 10"), 0), 0)
(['jno', '     ', '0xa'], 6)
>>> arch.get_instruction_text(arch.invert_branch(arch.assemble("jge 10"), 0), 0)
(['jl', '      ', '0xa'], 6)
>>>

is_always_branch_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_always_branch_patch_available determines if the instruction data at addr can be made to always branch.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_always_branch_patch_available(arch.assemble("je 10"), 0)
True
>>> arch.is_always_branch_patch_available(arch.assemble("nop"), 0)
False
>>>

is_invert_branch_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_always_branch_patch_available determines if the instruction data at addr can be inverted.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_invert_branch_patch_available(arch.assemble("je 10"), 0)
True
>>> arch.is_invert_branch_patch_available(arch.assemble("nop"), 0)
False
>>>

is_never_branch_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_never_branch_patch_available determines if the instruction data at addr can be made to never branch.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_never_branch_patch_available(arch.assemble("je 10"), 0)
True
>>> arch.is_never_branch_patch_available(arch.assemble("nop"), 0)
False
>>>

is_skip_and_return_value_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_skip_and_return_value_patch_available determines if the instruction data at addr is a call-like instruction that can be made into an instruction returns a value.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_skip_and_return_value_patch_available(arch.assemble("call 0"), 0)
True
>>> arch.is_skip_and_return_value_patch_available(arch.assemble("jmp eax"), 0)
False
>>>

is_skip_and_return_zero_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_skip_and_return_zero_patch_available determines if the instruction data at addr is a call-like instruction that can be made into an instruction returns zero.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_skip_and_return_zero_patch_available(arch.assemble("call 0"), 0)
True
>>> arch.is_skip_and_return_zero_patch_available(arch.assemble("call eax"), 0)
True
>>> arch.is_skip_and_return_zero_patch_available(arch.assemble("jmp eax"), 0)
False
>>>

is_view_type_constant_defined(type_name: str, const_name: str) → bool[source]¶

This API is deprecated and should not be used anymore.

Parameters

type_name (str) – the BinaryView type name of the constant to query
const_name (str) – the constant name to query

Return type

None

Example

>>> ELF_RELOC_COPY = 5
>>> arch.set_view_type_constant("ELF", "R_COPY", ELF_RELOC_COPY)
>>> arch.is_view_type_constant_defined("ELF", "R_COPY")
True
>>> arch.is_view_type_constant_defined("ELF", "NOT_THERE")
False
>>>

classmethod register() → None[source]¶

Return type: None

register_calling_convention(cc: CallingConvention) → None[source]¶

register_calling_convention registers a new calling convention for the Architecture.

Parameters: cc (CallingConvention) – CallingConvention object to be registered
Return type: None

set_view_type_constant(type_name: str, const_name: str, value: int) → None[source]¶

This API is deprecated and should not be used anymore.

set_view_type_constant creates a new binaryview type constant.

Parameters

type_name (str) – the BinaryView type name of the constant to be registered
const_name (str) – the constant name to register
value (int) – the value of the constant

Return type

None

Example

>>> ELF_RELOC_COPY = 5
>>> arch.set_view_type_constant("ELF", "R_COPY", ELF_RELOC_COPY)
>>>

skip_and_return_value(data: bytes, addr: int, value: int) → Optional[bytes][source]¶

skip_and_return_value reads the instruction(s) in data at virtual address addr and returns a string of bytes of the same length which doesn’t call and instead return a value.

Note

Architecture subclasses should implement this method.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched
value (int) –

Returns

string containing len(data) which always branches to the same location as the provided instruction

Return type

str

Example

>>> arch.get_instruction_text(arch.skip_and_return_value(arch.assemble("call 10"), 0, 0), 0)
(['mov', '     ', 'eax', ', ', '0x0'], 5)
>>>

address_size = 8¶

property calling_conventions: Mapping[str, CallingConvention]¶: Dict of CallingConvention objects (read-only)

property can_assemble: bool¶: returns if the architecture can assemble instructions (read-only)

default_int_size = 4¶

endianness = 0¶

flag_conditions_for_semantic_flag_group = {}¶

flag_roles: Dict[FlagName, FlagRole] = {}¶

flag_write_types: List[FlagWriteTypeName] = []¶

flags: List[FlagName] = []¶

flags_required_for_flag_condition: Dict[lowlevelil.LowLevelILFlagCondition, List[FlagName]] = {}¶

flags_required_for_semantic_flag_group: Dict[SemanticGroupName, List[FlagName]] = {}¶

flags_written_by_flag_write_type = {}¶

property full_width_regs: List[RegisterName]¶: List of full width register strings (read-only)

global_regs = []¶

instr_alignment = 1¶

intrinsics = {}¶

link_reg = None¶

max_instr_length = 16¶

name = None¶

next_address = 0¶

opcode_display_length = 8¶

reg_stacks: Dict[RegisterStackName, RegisterStackInfo] = {}¶

regs: Dict[RegisterName, RegisterInfo] = {}¶

semantic_class_for_flag_write_type = {}¶

semantic_flag_classes: List[SemanticClassName] = []¶

semantic_flag_groups: List[SemanticGroupName] = []¶

stack_pointer = None¶

property standalone_platform: Platform¶: Architecture standalone platform (read-only)

system_regs = []¶

property type_libraries: List[TypeLibrary]¶: Architecture type libraries

class ArchitectureHook(base_arch: Architecture)[source]¶

Bases: binaryninja.architecture.CoreArchitecture

Parameters: base_arch (Architecture) –

register() → None[source]¶

Return type: None

property base_arch: Architecture¶

class CoreArchitecture(handle: binaryninja._binaryninjacore.BNArchitecture)[source]¶

Bases: binaryninja.architecture.Architecture

Parameters: handle (binaryninja._binaryninjacore.BNArchitecture) –

always_branch(data: bytes, addr: int = 0) → Optional[bytes][source]¶

always_branch reads the instruction(s) in data at virtual address addr and returns a string of bytes of the same length which always branches.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched

Returns

string containing len(data) which always branches to the same location as the provided instruction

Return type

str

Example

>>> data = arch.always_branch(arch.assemble("je 10"), 0)
>>> arch.get_instruction_text(data, 0)
(['nop', '     '], 1)
>>> arch.get_instruction_text(bytes[1:], 0)
(['jmp', '     ', '0x9'], 5)
>>>

assemble(code: str, addr: int = 0) → bytes[source]¶

assemble converts the string of assembly instructions code loaded at virtual address addr to the byte representation of those instructions.

Parameters

code (str) – string representation of the instructions to be assembled
addr (int) – virtual address that the instructions will be loaded at

Returns

the bytes for the assembled instructions

Return type

Python3 - a ‘bytes’ object; Python2 - a ‘bytes’ object

Example

>>> arch.assemble("je 10")
b'\x0f\x84\x04\x00\x00\x00'
>>>

convert_to_nop(data: bytes, addr: int = 0) → Optional[bytes][source]¶

convert_to_nop reads the instruction(s) in data at virtual address addr and returns a string of nop instructions of the same length as data.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched

Returns

string containing len(data) worth of no-operation instructions

Return type

str

Example

>>> arch.convert_to_nop(b"\x00\x00", 0)
b'\x90\x90'
>>>

get_associated_arch_by_address(addr: int) → Tuple[Architecture, int][source]¶

Parameters: addr (int) –
Return type: Tuple[Architecture, int]

get_flag_condition_low_level_il(cond: LowLevelILFlagCondition, sem_class: Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

cond (LowLevelILFlagCondition) – Flag condition to be computed
sem_class (str) – Semantic class to be used (None for default semantics)
il (LowLevelILFunction) – LowLevelILFunction object to append ExpressionIndex objects to

Return type

ExpressionIndex

get_flag_role(flag: FlagIndex, sem_class: Optional[SemanticClassIndex] = None) → FlagRole[source]¶

get_flag_role gets the role of a given flag.

Parameters

flag (int) – flag
sem_class (int) – optional semantic flag class

Returns

flag role

Return type

FlagRole

get_flag_write_low_level_il(op: LowLevelILOperation, size: int, write_type: FlagWriteTypeName, flag: Union[FlagName, ILFlag, FlagIndex], operands: List[Union[str, ILRegister, int]], il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

op (LowLevelILOperation) –
size (int) –
write_type (str) –
operands (list(str) or list(int)) – a list of either items that are either string register names or constant integer values
il (LowLevelILFunction) –
flag (Union[FlagName, ILFlag, FlagIndex]) –

Return type

ExpressionIndex

get_flags_required_for_flag_condition(cond: LowLevelILFlagCondition, sem_class: Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]] = None) → List[FlagName][source]¶

Parameters

cond (LowLevelILFlagCondition) –
sem_class (Optional[Union[SemanticClassName, ILSemanticFlagClass, SemanticClassIndex]]) –

Return type

List[FlagName]

get_instruction_info(data: bytes, addr: int) → Optional[InstructionInfo][source]¶

get_instruction_info returns an InstructionInfo object for the instruction at the given virtual address addr with data data.

Note

The instruction info object should always set the InstructionInfo.length to the instruction length, and the branches of the proper types should be added if the instruction is a branch.

Parameters

data (bytes) – max_instruction_length bytes from the binary at virtual address addr
addr (int) – virtual address of bytes in data

Returns

the InstructionInfo for the current instruction

Return type

InstructionInfo

get_instruction_low_level_il(data: bytes, addr: int, il: LowLevelILFunction) → Optional[int][source]¶

get_instruction_low_level_il appends lowlevelil.ExpressionIndex objects to il for the instruction at the given virtual address addr with data data.

This is used to analyze arbitrary data at an address, if you are working with an existing binary, you likely want to be using Function.get_low_level_il_at.

Parameters

data (bytes) – max_instruction_length bytes from the binary at virtual address addr
addr (int) – virtual address of bytes in data
il (LowLevelILFunction) – The function the current instruction belongs to

Returns

the length of the current instruction

Return type

Optional[int]

get_instruction_text(data: bytes, addr: int) → Optional[Tuple[List[InstructionTextToken], int]][source]¶

get_instruction_text returns a list of InstructionTextToken objects for the instruction at the given virtual address addr with data data.

Parameters

data (bytes) – max_instruction_length bytes from the binary at virtual address addr
addr (int) – virtual address of bytes in data

Returns

an InstructionTextToken list for the current instruction

Return type

list(InstructionTextToken)

get_semantic_flag_group_low_level_il(sem_group: SemanticGroupName, il: LowLevelILFunction) → ExpressionIndex[source]¶

Parameters

sem_group (str) –
il (LowLevelILFunction) –

Return type

ExpressionIndex

invert_branch(data: bytes, addr: int = 0) → Optional[bytes][source]¶

invert_branch reads the instruction(s) in data at virtual address addr and returns a string of bytes of the same length which inverts the branch of provided instruction.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched

Returns

string containing len(data) which always branches to the same location as the provided instruction

Return type

str

Example

>>> arch.get_instruction_text(arch.invert_branch(arch.assemble("je 10"), 0), 0)
(['jne', '     ', '0xa'], 6)
>>> arch.get_instruction_text(arch.invert_branch(arch.assemble("jo 10"), 0), 0)
(['jno', '     ', '0xa'], 6)
>>> arch.get_instruction_text(arch.invert_branch(arch.assemble("jge 10"), 0), 0)
(['jl', '      ', '0xa'], 6)
>>>

is_always_branch_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_always_branch_patch_available determines if the instruction data at addr can be made to always branch.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_always_branch_patch_available(arch.assemble("je 10"), 0)
True
>>> arch.is_always_branch_patch_available(arch.assemble("nop"), 0)
False
>>>

is_invert_branch_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_always_branch_patch_available determines if the instruction data at addr can be inverted.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_invert_branch_patch_available(arch.assemble("je 10"), 0)
True
>>> arch.is_invert_branch_patch_available(arch.assemble("nop"), 0)
False
>>>

is_never_branch_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_never_branch_patch_available determines if the instruction data at addr can be made to never branch.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_never_branch_patch_available(arch.assemble("je 10"), 0)
True
>>> arch.is_never_branch_patch_available(arch.assemble("nop"), 0)
False
>>>

is_skip_and_return_value_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_skip_and_return_value_patch_available determines if the instruction data at addr is a call-like instruction that can be made into an instruction returns a value.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_skip_and_return_value_patch_available(arch.assemble("call 0"), 0)
True
>>> arch.is_skip_and_return_value_patch_available(arch.assemble("jmp eax"), 0)
False
>>>

is_skip_and_return_zero_patch_available(data: bytes, addr: int = 0) → bool[source]¶

is_skip_and_return_zero_patch_available determines if the instruction data at addr is a call-like instruction that can be made into an instruction returns zero.

Parameters

data (str) – bytes for the instruction to be checked
addr (int) – the virtual address of the instruction to be patched

Returns

True if the instruction can be patched, False otherwise

Return type

bool

Example

>>> arch.is_skip_and_return_zero_patch_available(arch.assemble("call 0"), 0)
True
>>> arch.is_skip_and_return_zero_patch_available(arch.assemble("call eax"), 0)
True
>>> arch.is_skip_and_return_zero_patch_available(arch.assemble("jmp eax"), 0)
False
>>>

skip_and_return_value(data: bytes, addr: int, value: int) → Optional[bytes][source]¶

skip_and_return_value reads the instruction(s) in data at virtual address addr and returns a string of bytes of the same length which doesn’t call and instead return a value.

Parameters

data (str) – bytes for the instruction to be converted
addr (int) – the virtual address of the instruction to be patched
value (int) – the value to return

Returns

string containing len(data) which always branches to the same location as the provided instruction

Return type

str

Example

>>> arch.get_instruction_text(arch.skip_and_return_value(arch.assemble("call 10"), 0, 0), 0)
(['mov', '     ', 'eax', ', ', '0x0'], 5)
>>>

class InstructionBranch(type: BranchType, target: int, arch: Union[ForwardRef('Architecture'), NoneType])[source]¶

Bases: object

Parameters

type (BranchType) –
target (int) –
arch (Optional[Architecture]) –

Return type

None

arch: Optional[Architecture]¶

target: int¶

type: BranchType¶

class InstructionInfo(length: int = 0, arch_transition_by_target_addr: bool = False, branch_delay: bool = False, branches: List[binaryninja.architecture.InstructionBranch] = <factory>)[source]¶

Bases: object

Parameters

length (int) –
arch_transition_by_target_addr (bool) –
branch_delay (bool) –
branches (List[InstructionBranch]) –

Return type

None

add_branch(branch_type: BranchType, target: int = 0, arch: Optional[Architecture] = None) → None[source]¶

Parameters

branch_type (BranchType) –
target (int) –
arch (Optional[Architecture]) –

Return type

None

arch_transition_by_target_addr: bool = False¶

branch_delay: bool = False¶

branches: List[InstructionBranch]¶

length: int = 0¶

class InstructionTextToken(type: typing.Union[binaryninja.enums.InstructionTextTokenType, int], text: str, value: int = 0, size: int = 0, operand: int = 4294967295, context: binaryninja.enums.InstructionTextTokenContext = InstructionTextTokenContext.NoTokenContext, address: int = 0, confidence: int = 255, typeNames: typing.List[str] = <factory>, width: int = 0)[source]¶

Bases: object

class InstructionTextToken is used to tell the core about the various components in the disassembly views.

The below table is provided for documentation purposes but the complete list of TokenTypes is available at: enums.InstructionTextTokenType. Note that types marked as Not emitted by architectures are not intended to be used by Architectures during lifting. Rather, they are added by the core during analysis or display. UI plugins, however, may make use of them as appropriate.

Uses of tokens include plugins that parse the output of an architecture (though parsing IL is recommended), or additionally, applying color schemes appropriately.

InstructionTextTokenType

Description

AddressDisplayToken

Not emitted by architectures

AnnotationToken

Not emitted by architectures

ArgumentNameToken

Not emitted by architectures

BeginMemoryOperandToken

The start of memory operand

CharacterConstantToken

A printable character

CodeRelativeAddressToken

Not emitted by architectures

CodeSymbolToken

Not emitted by architectures

DataSymbolToken

Not emitted by architectures

EndMemoryOperandToken

The end of a memory operand

ExternalSymbolToken

Not emitted by architectures

FieldNameToken

Not emitted by architectures

FloatingPointToken

Floating point number

HexDumpByteValueToken

Not emitted by architectures

HexDumpInvalidByteToken

Not emitted by architectures

HexDumpSkippedByteToken

Not emitted by architectures

HexDumpTextToken

Not emitted by architectures

ImportToken

Not emitted by architectures

IndirectImportToken

Not emitted by architectures

InstructionToken

The instruction mnemonic

IntegerToken

Integers

KeywordToken

Not emitted by architectures

LocalVariableToken

Not emitted by architectures

NameSpaceSeparatorToken

Not emitted by architectures

NameSpaceToken

Not emitted by architectures

OpcodeToken

Not emitted by architectures

OperandSeparatorToken

The comma or delimiter that separates tokens

PossibleAddressToken

Integers that are likely addresses

RegisterToken

Registers

StringToken

Not emitted by architectures

StructOffsetToken

Not emitted by architectures

TagToken

Not emitted by architectures

TextToken

Used for anything not of another type.

CommentToken

Comments

TypeNameToken

Not emitted by architectures

Parameters

type (Union[InstructionTextTokenType, int]) –
text (str) –
value (int) –
size (int) –
operand (int) –
context (InstructionTextTokenContext) –
address (int) –
confidence (int) –
typeNames (List[str]) –
width (int) –

Return type

None

address: int = 0¶

confidence: int = 255¶

context: InstructionTextTokenContext = 0¶

operand: int = 4294967295¶

size: int = 0¶

text: str¶

type: Union[InstructionTextTokenType, int]¶

typeNames: List[str]¶

value: int = 0¶

width: int = 0¶

class IntrinsicInfo(inputs: List[IntrinsicInput], outputs: List[ForwardRef('types.Type')], index: Union[int, NoneType] = None)[source]¶

Bases: object

Parameters

inputs (List[IntrinsicInput]) –
outputs (List[Type]) –
index (Optional[int]) –

Return type

None

index: Optional[int] = None¶

inputs: List[IntrinsicInput]¶

outputs: List[Type]¶

class IntrinsicInput(type: 'types.Type', name: str = '')[source]¶

Bases: object

Parameters

type (Type) –
name (str) –

Return type

None

name: str = ''¶

type: Type¶

class RegisterInfo(full_width_reg: <function NewType.<locals>.new_type at 0x7f9a91c97040>, size: int, offset: int = 0, extend: binaryninja.enums.ImplicitRegisterExtend = <ImplicitRegisterExtend.NoExtend: 0>, index: Union[RegisterIndex, NoneType] = None)[source]¶

Bases: object

Parameters

full_width_reg (RegisterName) –
size (int) –
offset (int) –
extend (ImplicitRegisterExtend) –
index (Optional[RegisterIndex]) –

Return type

None

extend: ImplicitRegisterExtend = 0¶

full_width_reg: RegisterName¶

index: Optional[RegisterIndex] = None¶

offset: int = 0¶

size: int¶

class RegisterStackInfo(storage_regs: List[RegisterName], top_relative_regs: List[RegisterName], stack_top_reg: <function NewType.<locals>.new_type at 0x7f9a91c97040>, index: Union[RegisterStackIndex, NoneType] = None)[source]¶

Bases: object

Parameters

storage_regs (List[RegisterName]) –
top_relative_regs (List[RegisterName]) –
stack_top_reg (RegisterName) –
index (Optional[RegisterStackIndex]) –

Return type

None

index: Optional[RegisterStackIndex] = None¶

stack_top_reg: RegisterName¶

storage_regs: List[RegisterName]¶

top_relative_regs: List[RegisterName]¶