def getPatches(self, elfFile, symbols, file):
s = self.getSymbol(symbols, self.symbol)
# Compile a BL
assert (s.value % 4) == 0
assert (self.addr % 4) == 0
offset = (s.value - self.addr - 8) / 4
asm = bitstring.pack("intle:24, bin:4, bin:3, bin:1", offset, "0b1110", "0b101", "0b1")
return [(elfhelper.vaddr_to_offset(elfFile, self.addr), asm.tobytes())]
def main(argv):
parser = argparse.ArgumentParser(description="vaddroffset")
parser.add_argument('-o', '--offset', help="offset")
parser.add_argument('-v', '--vaddr', help="vaddr")
parser.add_argument('file', help="file")
args = parser.parse_args(argv[1:])
elff = elffile.open(args.file)
if args.offset:
print("0x%x" % (elfhelper.offset_to_vaddr(elff, int(args.offset, 0))))
elif args.vaddr:
print("0x%x" % (elfhelper.vaddr_to_offset(elff, int(args.vaddr, 0))))
def getPatches(self, elfFile, symbols, file):
s = self.getSymbol(symbols, self.symbol)
file.seek(s.value)
(new_list_size,) = struct.unpack("I", file.read(4))
file.seek(self.addr)
(instr,) = struct.unpack("I", file.read(4))
# Compute the new instruction
if instr != 0xE287A03C:
raise ValueError("Instruction '%d' is not valid" % instr)
instr = instr & 0xFFFFFF00
instr = instr + new_list_size
data = struct.pack("I", instr)
return [(elfhelper.vaddr_to_offset(elfFile, self.addr), data)]
def getPatches(self, elfFile, symbols, file):
s = self.getSymbol(symbols, self.symbol)
file.seek(s.value)
(value,) = struct.unpack("I", file.read(4))
return [(elfhelper.vaddr_to_offset(elfFile, self.addr), struct.pack("i", value))]
def getPatches(self, elfFile, symbols, file):
s = self.getSymbol(symbols, self.symbol)
return [(elfhelper.vaddr_to_offset(elfFile, self.addr), struct.pack("i", s.value))]