def __init__(self, output_path, abi, input_path=None):
from peachpy.formats.elf.image import Image
from peachpy.formats.elf.section import TextSection
self.output_path = output_path
self.previous_writer = None
self.abi = abi
self.image = Image(abi, input_path)
self.text_section = TextSection(abi)
self.image.bind_section(self.text_section, ".text")
class ELFWriter:
def __init__(self, output_path, abi, input_path=None):
from peachpy.formats.elf.image import Image
from peachpy.formats.elf.section import TextSection
self.output_path = output_path
self.previous_writer = None
self.abi = abi
self.image = Image(abi, input_path)
self.text_section = TextSection(abi)
self.image.bind_section(self.text_section, ".text")
def __enter__(self):
global active_writer
self.previous_writer = active_writer
active_writer = self
self.output_file = open(self.output_path, "w", buffering=0)
return self
def __exit__(self, exc_type, exc_value, traceback):
global active_writer
active_writer = self.previous_writer
self.previous_writer = None
if exc_type is None:
self.image.symtab.bind()
self.output_file.write(self.image.as_bytearray)
self.output_file.close()
self.output_file = None
else:
import os
os.unlink(self.output_file.name)
self.output_file = None
raise
def add_function(self, function):
import peachpy.x86_64.function
assert isinstance(function, peachpy.x86_64.function.ABIFunction), \
"Function must be bindinded to an ABI before its assembly can be used"
encoded_function = function.encode()
function_code = encoded_function.as_bytearray
function_offset = len(self.text_section.content)
self.text_section.append(function_code)
from peachpy.formats.elf.symbol import Symbol, SymbolBinding, SymbolType
function_symbol = Symbol(self.abi)
function_symbol.name_index = self.image.strtab.add(function.name)
function_symbol.value = function_offset
function_symbol.content_size = len(function_code)
function_symbol.section_index = self.text_section.index
function_symbol.binding = SymbolBinding.Global
function_symbol.type = SymbolType.Function
self.image.symtab.add(function_symbol)
def __init__(self, output_path, abi, input_path=None):
from peachpy.formats.mscoff import Image, TextSection, ReadOnlyDataSection
self.output_path = output_path
self.previous_writer = None
self.abi = abi
self.image = Image(abi, input_path)
self.text_section = TextSection()
self.image.add_section(self.text_section)
self.rdata_section = ReadOnlyDataSection()
self.image.add_section(self.rdata_section)
def __init__(self, output_path, abi, input_path=None):
super(ELFWriter, self).__init__(output_path)
from peachpy.formats.elf.image import Image
from peachpy.formats.elf.section import TextSection
self.abi = abi
self.image = Image(abi, input_path)
self.text_section = TextSection()
self.image.add_section(self.text_section)
self.text_rela_section = None
self.rodata_section = None
def __init__(self, output_path, abi, input_path=None):
super(MSCOFFWriter, self).__init__(output_path)
from peachpy.formats.mscoff import Image, TextSection, ReadOnlyDataSection
self.output_path = output_path
self.abi = abi
self.image = Image(abi, input_path)
self.text_section = TextSection()
self.image.add_section(self.text_section)
self.rdata_section = ReadOnlyDataSection()
self.image.add_section(self.rdata_section)
def __init__(self, output_path, abi, input_path=None):
super(ELFWriter, self).__init__(output_path)
from peachpy.formats.elf.image import Image
from peachpy.formats.elf.section import TextSection, ProgramBitsSection
self.abi = abi
self.image = Image(abi, input_path)
self.text_section = TextSection()
self.image.add_section(self.text_section)
self.gnu_stack_section = ProgramBitsSection(".note.GNU-stack", allocate=False)
self.image.add_section(self.gnu_stack_section)
self.text_rela_section = None
self.rodata_section = None
