def encode(self, encoder, name_index_map, section_index_map):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
assert encoder.bitness in [32, 64]
assert self.name in name_index_map
from peachpy.formats.elf.section import SectionIndex
assert self.section is None or isinstance(
self.section, SectionIndex) or self.section in section_index_map
name_index = name_index_map[self.name]
section_index = SectionIndex.absolute
if self.section is not None:
if isinstance(self.section, SectionIndex):
section_index = self.section
else:
section_index = section_index_map[self.section]
if encoder.bitness == 32:
return encoder.uint32(name_index) + \
encoder.uint32(self.value) + \
encoder.uint32(self.size) + \
encoder.uint8((self.binding << 4) | (self.type & 0xF)) + \
encoder.uint8(0) + \
encoder.uint16(section_index)
else:
return encoder.uint32(name_index) + \
encoder.uint8((self.binding << 4) | (self.type & 0xF)) + \
encoder.uint8(0) + \
encoder.uint16(section_index) + \
encoder.uint64(self.value) + \
encoder.uint64(self.size)
def encode(self, encoder, name_index_map, section_index_map):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
assert encoder.bitness in [32, 64]
assert self.name in name_index_map
from peachpy.formats.elf.section import SectionIndex
assert self.section is None or isinstance(self.section, SectionIndex) or self.section in section_index_map
name_index = name_index_map[self.name]
section_index = SectionIndex.absolute
if self.section is not None:
if isinstance(self.section, SectionIndex):
section_index = self.section
else:
section_index = section_index_map[self.section]
if encoder.bitness == 32:
return encoder.uint32(name_index) + \
encoder.uint32(self.value) + \
encoder.uint32(self.size) + \
encoder.uint8((self.binding << 4) | (self.type & 0xF)) + \
encoder.uint8(0) + \
encoder.uint16(section_index)
else:
return encoder.uint32(name_index) + \
encoder.uint8((self.binding << 4) | (self.type & 0xF)) + \
encoder.uint8(0) + \
encoder.uint16(section_index) + \
encoder.uint64(self.value) + \
encoder.uint64(self.size)
def encode_entry(self, encoder, symbol_index_map, section_address=0):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
assert self.symbol in symbol_index_map
symbol_index = symbol_index_map[self.symbol]
return encoder.uint32(section_address + self.offset) + \
encoder.uint32(symbol_index) + \
encoder.uint16(self.type)
def encode_entry(self, encoder, symbol_index_map, section_address=0):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
assert self.symbol in symbol_index_map
symbol_index = symbol_index_map[self.symbol]
return encoder.uint32(section_address + self.offset) + \
encoder.uint32(symbol_index) + \
encoder.uint16(self.type)
def encode_header(self,
encoder,
name_index_map,
section_index_map,
offset,
address=None,
link_section=None,
info=None,
content_size=0,
entry_size=0):
import peachpy.encoder
from peachpy.util import is_uint64, is_uint32
assert isinstance(encoder, peachpy.encoder.Encoder)
assert isinstance(name_index_map, dict)
assert section_index_map is None or isinstance(section_index_map, dict)
assert offset is None or is_uint64(offset)
assert address is None or is_uint64(address)
assert link_section is None or isinstance(link_section, Section)
assert info is None or is_uint64(info)
assert is_uint64(content_size)
assert is_uint32(entry_size)
assert encoder.bitness in [32, 64]
if encoder.bitness == 32:
assert offset is None or is_uint32(offset)
assert address is None or is_uint32(address)
assert self.name is None or self.name in name_index_map
assert section_index_map is not None or link_section is None
name_index = name_index_map.get(self.name, 0)
if address is None:
address = 0
if offset is None:
offset = 0
link = 0
if link_section is not None:
link = section_index_map[link_section]
if info is None:
info = 0
return encoder.uint32(name_index) + \
encoder.uint32(self.type) + \
encoder.unsigned_offset(self.flags) + \
encoder.unsigned_offset(address) + \
encoder.unsigned_offset(offset) + \
encoder.unsigned_offset(content_size) + \
encoder.uint32(link) + \
encoder.uint32(info) + \
encoder.unsigned_offset(self.alignment) + \
encoder.unsigned_offset(entry_size)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.pointer_size == 4:
return encoder.uint32(self.string_index) + \
encoder.uint8(self.type | self.visibility) + \
encoder.uint8(self.section_index) + \
encoder.uint16(self.description | self.flags) + \
encoder.uint32(self.value)
else:
return encoder.uint32(self.string_index) + \
encoder.uint8(self.type | self.visibility) + \
encoder.uint8(self.section_index) + \
encoder.uint16(self.description | self.flags) + \
encoder.uint64(self.value)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.elf_class == ElfClass.Class32:
return encoder.uint32(self.name_index) + \
encoder.uint32(self.value) + \
encoder.uint32(self.content_size) + \
encoder.uint8((self.binding << 4) | (self.type & 0xF)) + \
encoder.uint8(0) + \
encoder.uint16(self.section_index)
else:
return encoder.uint32(self.name_index) + \
encoder.uint8((self.binding << 4) | (self.type & 0xF)) + \
encoder.uint8(0) + \
encoder.uint16(self.section_index) + \
encoder.uint64(self.value) + \
encoder.uint64(self.content_size)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness, self.abi.elf_bitness)
return self.identification.as_bytearray + \
encoder.uint16(self.file_type) + \
encoder.uint16(self.abi.elf_machine_type) + \
encoder.uint32(self.file_version) + \
encoder.unsigned_offset(self.entry_address or 0) + \
encoder.unsigned_offset(self.program_header_table_offset or 0) + \
encoder.unsigned_offset(self.section_header_table_offset or 0) + \
encoder.uint32(self.flags) + \
encoder.uint16(self.file_header_size) + \
encoder.uint16(self.program_header_entry_size) + \
encoder.uint16(self.program_header_entries_count) + \
encoder.uint16(self.section_header_entry_size) + \
encoder.uint16(self.section_header_entries_count) + \
encoder.uint16(self.section_name_string_table_index)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness, self.abi.elf_bitness)
return self.identification.as_bytearray + \
encoder.uint16(self.file_type) + \
encoder.uint16(self.abi.elf_machine_type) + \
encoder.uint32(self.file_version) + \
encoder.unsigned_offset(self.entry_address or 0) + \
encoder.unsigned_offset(self.program_header_table_offset or 0) + \
encoder.unsigned_offset(self.section_header_table_offset or 0) + \
encoder.uint32(self.flags) + \
encoder.uint16(self.file_header_size) + \
encoder.uint16(self.program_header_entry_size) + \
encoder.uint16(self.program_header_entries_count) + \
encoder.uint16(self.section_header_entry_size) + \
encoder.uint16(self.section_header_entries_count) + \
encoder.uint16(self.section_name_string_table_index)
def encode(self, encoder, section_index_map, symbol_index_map):
from peachpy.formats.macho.section import Section
from peachpy.util import ilog2
symbol = 0
if isinstance(self.symbol, Symbol):
# Set "external" bit (bit 27) if referencing an external symbol
symbol = symbol_index_map[self.symbol] | 0x8000000
elif isinstance(self.symbol, Section):
symbol = section_index_map[self.symbol]
if self.is_pc_relative:
# Set "pc_relative" bit (bit 24) if the relocation is relative to the program counter
symbol |= 0x1000000
log2_size = ilog2(self.size)
symbol |= log2_size << 25
symbol |= self.type << 28
return encoder.uint32(self.offset) + encoder.uint32(symbol)
def encode_header(self, encoder, name_index_map, section_index_map, offset,
address=None, link_section=None, info=None,
content_size=0, entry_size=0):
import peachpy.encoder
from peachpy.util import is_uint64, is_uint32
assert isinstance(encoder, peachpy.encoder.Encoder)
assert isinstance(name_index_map, dict)
assert section_index_map is None or isinstance(section_index_map, dict)
assert offset is None or is_uint64(offset)
assert address is None or is_uint64(address)
assert link_section is None or isinstance(link_section, Section)
assert info is None or is_uint64(info)
assert is_uint64(content_size)
assert is_uint32(entry_size)
assert encoder.bitness in [32, 64]
if encoder.bitness == 32:
assert offset is None or is_uint32(offset)
assert address is None or is_uint32(address)
assert self.name is None or self.name in name_index_map
assert section_index_map is not None or link_section is None
name_index = name_index_map.get(self.name, 0)
if address is None:
address = 0
if offset is None:
offset = 0
link = 0
if link_section is not None:
link = section_index_map[link_section]
if info is None:
info = 0
return encoder.uint32(name_index) + \
encoder.uint32(self.type) + \
encoder.unsigned_offset(self.flags) + \
encoder.unsigned_offset(address) + \
encoder.unsigned_offset(offset) + \
encoder.unsigned_offset(content_size) + \
encoder.uint32(link) + \
encoder.uint32(info) + \
encoder.unsigned_offset(self.alignment) + \
encoder.unsigned_offset(entry_size)
def encode(self, encoder, name_index_map, section_index_map, section_address_map):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
assert self.name in name_index_map
assert self.section is None or self.section in section_index_map
name_index = name_index_map[self.name]
section_index = 0
if self.section is not None:
section_index = section_index_map[self.section]
if encoder.bitness == 32:
return encoder.uint32(name_index) + \
encoder.uint8(self.type | self.visibility) + \
encoder.uint8(section_index) + \
encoder.uint16(self.description | self.flags) + \
encoder.uint32(self.value)
else:
return encoder.uint32(name_index) + \
encoder.uint8(self.type | self.visibility) + \
encoder.uint8(section_index) + \
encoder.uint16(self.description | self.flags) + \
encoder.uint64(self.value + section_address_map[self.section])
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
return encoder.uint32(self.id) + \
encoder.uint32(self.size) + \
encoder.uint32(self.symbol_offset or 0) + \
encoder.uint32(self.symbol_count) + \
encoder.uint32(self.string_offset or 0) + \
encoder.uint32(self.string_size)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
bytes = encoder.uint32(self.magic) + \
encoder.uint32(self.cpu_type) + \
encoder.uint32(self.cpu_subtype) + \
encoder.uint32(self.file_type) + \
encoder.uint32(self.command_count) + \
encoder.uint32(self.command_size) + \
encoder.uint32(self.flags)
if self.abi.pointer_size == 8:
bytes += bytearray(4)
return bytes
def encode_command(self, encoder, symbol_offset_map, string_offset):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
command_id = 0x2
symbols_offset = 0
if self.symbols:
symbols_offset = symbol_offset_map[self.symbols[0]]
return encoder.uint32(command_id) + \
encoder.uint32(SymbolTable.command_size) + \
encoder.uint32(symbols_offset) + \
encoder.uint32(len(self.symbols)) + \
encoder.uint32(string_offset) + \
encoder.uint32(self.string_table.size)
def encode_command(self, encoder, symbol_offset_map, string_offset):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
command_id = 0x2
symbols_offset = 0
if self.symbols:
symbols_offset = symbol_offset_map[self.symbols[0]]
return encoder.uint32(command_id) + \
encoder.uint32(SymbolTable.command_size) + \
encoder.uint32(symbols_offset) + \
encoder.uint32(len(self.symbols)) + \
encoder.uint32(string_offset) + \
encoder.uint32(self.string_table.size)
def encode_command(self, encoder, offset, address, relocations_offset):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
if len(self.relocations) == 0:
relocations_offset = 0
if encoder.bitness == 32:
return encoder.fixed_string(self.section_name, 16) + \
encoder.fixed_string(self.segment_name, 16) + \
encoder.uint32(address) + \
encoder.uint32(self.content_size) + \
encoder.uint32(offset) + \
encoder.uint32(self.log2_alignment) + \
encoder.uint32(relocations_offset) + \
encoder.uint32(self.relocations_count) + \
encoder.uint32(self.type | self.attributes) + \
bytearray(8)
else:
return encoder.fixed_string(self.section_name, 16) + \
encoder.fixed_string(self.segment_name, 16) + \
encoder.uint64(address) + \
encoder.uint64(self.content_size) + \
encoder.uint32(offset) + \
encoder.uint32(self.log2_alignment) + \
encoder.uint32(relocations_offset) + \
encoder.uint32(self.relocations_count) + \
encoder.uint32(self.type | self.attributes) + \
bytearray(12)
def encode_command(self, encoder, section_offset_map, section_address_map,
section_relocations_map):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
offset = section_offset_map[self.sections[0]]
memory_size = sum(section.content_size for section in self.sections)
file_size = sum(section.content_size for section in self.sections)
address = 0
if self.sections:
address = section_address_map[self.sections[0]]
# TODO: combine the two cases
if encoder.bitness == 32:
command_id = 0x1
command_size = 56 + len(self.sections) * 68
command = encoder.uint32(command_id) + \
encoder.uint32(command_size) + \
encoder.fixed_string(self.name, 16) + \
encoder.uint32(address) + \
encoder.uint32(memory_size) + \
encoder.uint32(offset) + \
encoder.uint32(file_size) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(len(self.sections)) + \
encoder.uint32(self.flags)
else:
command_id = 0x19
command_size = 72 + len(self.sections) * 80
command = encoder.uint32(command_id) + \
encoder.uint32(command_size) + \
encoder.fixed_string(self.name, 16) + \
encoder.uint64(address) + \
encoder.uint64(memory_size) + \
encoder.uint64(offset) + \
encoder.uint64(file_size) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(len(self.sections)) + \
encoder.uint32(self.flags)
for section in self.sections:
command += section.encode_command(
encoder, section_offset_map[section],
section_address_map[section],
section_relocations_map.get(section))
from peachpy.x86_64.abi import system_v_x86_64_abi
return command
def encode_command(self, encoder, offset, address, relocations_offset):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
if len(self.relocations) == 0:
relocations_offset = 0
if encoder.bitness == 32:
return encoder.fixed_string(self.section_name, 16) + \
encoder.fixed_string(self.segment_name, 16) + \
encoder.uint32(address) + \
encoder.uint32(self.content_size) + \
encoder.uint32(offset) + \
encoder.uint32(self.log2_alignment) + \
encoder.uint32(relocations_offset) + \
encoder.uint32(self.relocations_count) + \
encoder.uint32(self.type | self.attributes) + \
bytearray(8)
else:
return encoder.fixed_string(self.section_name, 16) + \
encoder.fixed_string(self.segment_name, 16) + \
encoder.uint64(address) + \
encoder.uint64(self.content_size) + \
encoder.uint32(offset) + \
encoder.uint32(self.log2_alignment) + \
encoder.uint32(relocations_offset) + \
encoder.uint32(self.relocations_count) + \
encoder.uint32(self.type | self.attributes) + \
bytearray(12)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.pointer_size == 4:
return (
encoder.fixed_string(self.name, 16)
+ encoder.fixed_string(self.segment_name, 16)
+ encoder.uint32(self.address or 0)
+ encoder.uint32(self.content_size)
+ encoder.uint32(self.offset)
+ encoder.uint32(self.alignment)
+ encoder.uint32(self.relocation_offset or 0)
+ encoder.uint32(self.relocation_count)
+ encoder.uint32(self.type | self.attributes)
+ bytearray(8)
)
else:
return (
encoder.fixed_string(self.name, 16)
+ encoder.fixed_string(self.segment_name, 16)
+ encoder.uint64(self.address or 0)
+ encoder.uint64(self.content_size)
+ encoder.uint32(self.offset)
+ encoder.uint32(self.alignment)
+ encoder.uint32(self.relocation_offset or 0)
+ encoder.uint32(self.relocation_count)
+ encoder.uint32(self.type | self.attributes)
+ bytearray(12)
)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.pointer_size == 4:
return encoder.uint32(self.id) + \
encoder.uint32(self.size) + \
encoder.fixed_string(self.name, 16) + \
encoder.uint32(self.address or 0) + \
encoder.uint32(self.memory_size) + \
encoder.uint32(self.offset) + \
encoder.uint32(self.file_size) + \
encoder.uint32(MemoryProtection.Default) + \
encoder.uint32(MemoryProtection.Default) + \
encoder.uint32(self.section_count) + \
encoder.uint32(self.flags)
else:
return encoder.uint32(self.id) + \
encoder.uint32(self.size) + \
encoder.fixed_string(self.name, 16) + \
encoder.uint64(self.address or 0) + \
encoder.uint64(self.memory_size) + \
encoder.uint64(self.offset) + \
encoder.uint64(self.file_size) + \
encoder.uint32(MemoryProtection.Default) + \
encoder.uint32(MemoryProtection.Default) + \
encoder.uint32(self.section_count) + \
encoder.uint32(self.flags)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.elf_class == ElfClass.Class32:
return encoder.uint32(self.name_index) + \
encoder.uint32(self.content_type) + \
encoder.uint32(self.flags) + \
encoder.uint32(self.address or 0) + \
encoder.uint32(self.offset or 0) + \
encoder.uint32(self.content_size) + \
encoder.uint32(self.link_index) + \
encoder.uint32(self.info) + \
encoder.uint32(self.address_alignment) + \
encoder.uint32(self.entry_size)
else:
return encoder.uint32(self.name_index) + \
encoder.uint32(self.content_type) + \
encoder.uint64(self.flags) + \
encoder.uint64(self.address or 0) + \
encoder.uint64(self.offset or 0) + \
encoder.uint64(self.content_size) + \
encoder.uint32(self.link_index or 0) + \
encoder.uint32(self.info) + \
encoder.uint64(self.address_alignment) + \
encoder.uint64(self.entry_size)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
return encoder.uint32(self.id) + encoder.uint32(self.size)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.pointer_size == 4:
return encoder.fixed_string(self.name, 16) + \
encoder.fixed_string(self.segment_name, 16) + \
encoder.uint32(self.address or 0) + \
encoder.uint32(self.content_size) + \
encoder.uint32(self.offset) + \
encoder.uint32(self.alignment) + \
encoder.uint32(self.relocation_offset or 0) + \
encoder.uint32(self.relocation_count) + \
encoder.uint32(self.type | self.attributes) + \
bytearray(8)
else:
return encoder.fixed_string(self.name, 16) + \
encoder.fixed_string(self.segment_name, 16) + \
encoder.uint64(self.address or 0) + \
encoder.uint64(self.content_size) + \
encoder.uint32(self.offset) + \
encoder.uint32(self.alignment) + \
encoder.uint32(self.relocation_offset or 0) + \
encoder.uint32(self.relocation_count) + \
encoder.uint32(self.type | self.attributes) + \
bytearray(12)
def as_bytearray(self):
import peachpy.encoder
encoder = peachpy.encoder.Encoder(self.abi.endianness)
if self.abi.elf_class == ElfClass.Class32:
return encoder.uint32(self.name_index) + \
encoder.uint32(self.content_type) + \
encoder.uint32(self.flags) + \
encoder.uint32(self.address or 0) + \
encoder.uint32(self.offset or 0) + \
encoder.uint32(self.content_size) + \
encoder.uint32(self.link_index) + \
encoder.uint32(self.info) + \
encoder.uint32(self.address_alignment) + \
encoder.uint32(self.entry_size)
else:
return encoder.uint32(self.name_index) + \
encoder.uint32(self.content_type) + \
encoder.uint64(self.flags) + \
encoder.uint64(self.address or 0) + \
encoder.uint64(self.offset or 0) + \
encoder.uint64(self.content_size) + \
encoder.uint32(self.link_index or 0) + \
encoder.uint32(self.info) + \
encoder.uint64(self.address_alignment) + \
encoder.uint64(self.entry_size)
def encode_command(self, encoder, section_offset_map, section_address_map, section_relocations_map):
import peachpy.encoder
assert isinstance(encoder, peachpy.encoder.Encoder)
offset = section_offset_map[self.sections[0]]
memory_size = sum(section.content_size for section in self.sections)
file_size = sum(section.content_size for section in self.sections)
address = 0
if self.sections:
address = section_address_map[self.sections[0]]
# TODO: combine the two cases
if encoder.bitness == 32:
command_id = 0x1
command_size = 56 + len(self.sections) * 68
command = encoder.uint32(command_id) + \
encoder.uint32(command_size) + \
encoder.fixed_string(self.name, 16) + \
encoder.uint32(address) + \
encoder.uint32(memory_size) + \
encoder.uint32(offset) + \
encoder.uint32(file_size) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(len(self.sections)) + \
encoder.uint32(self.flags)
else:
command_id = 0x19
command_size = 72 + len(self.sections) * 80
command = encoder.uint32(command_id) + \
encoder.uint32(command_size) + \
encoder.fixed_string(self.name, 16) + \
encoder.uint64(address) + \
encoder.uint64(memory_size) + \
encoder.uint64(offset) + \
encoder.uint64(file_size) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(MemoryProtection.default) + \
encoder.uint32(len(self.sections)) + \
encoder.uint32(self.flags)
for section in self.sections:
command += section.encode_command(encoder,
section_offset_map[section],
section_address_map[section],
section_relocations_map.get(section))
from peachpy.x86_64.abi import system_v_x86_64_abi
return command
