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import logging
from miasm2.jitter.jitload import jitter, named_arguments
from miasm2.core import asmblock
from miasm2.core.utils import pck32, upck32
from miasm2.arch.arm.sem import ir_armb, ir_arml
log = logging.getLogger('jit_arm')
hnd = logging.StreamHandler()
hnd.setFormatter(logging.Formatter("[%(levelname)s]: %(message)s"))
log.addHandler(hnd)
log.setLevel(logging.CRITICAL)
class jitter_arml(jitter):
def __init__(self, *args, **kwargs):
sp = asmblock.AsmSymbolPool()
jitter.__init__(self, ir_arml(sp), *args, **kwargs)
self.vm.set_little_endian()
def push_uint32_t(self, value):
self.cpu.SP -= 4
self.vm.set_mem(self.cpu.SP, pck32(value))
def pop_uint32_t(self):
value = upck32(self.vm.get_mem(self.cpu.SP, 4))
self.cpu.SP += 4
return value
def get_stack_arg(self, index):
return upck32(self.vm.get_mem(self.cpu.SP + 4 * index, 4))
# calling conventions
@named_arguments
def func_args_stdcall(self, n_args):
args = [self.get_arg_n_stdcall(i) for i in xrange(n_args)]
ret_ad = self.cpu.LR
return ret_ad, args
def func_ret_stdcall(self, ret_addr, ret_value1=None, ret_value2=None):
self.pc = self.cpu.PC = ret_addr
if ret_value1 is not None:
self.cpu.R0 = ret_value1
if ret_value2 is not None:
self.cpu.R1 = ret_value2
return True
def func_prepare_stdcall(self, ret_addr, *args):
for index in xrange(min(len(args), 4)):
setattr(self.cpu, 'R%d' % index, args[index])
for index in xrange(4, len(args)):
self.vm.set_mem(self.cpu.SP + 4 * (index - 4), pck32(args[index]))
self.cpu.LR = ret_addr
def get_arg_n_stdcall(self, index):
if index < 4:
arg = getattr(self.cpu, 'R%d' % index)
else:
arg = self.get_stack_arg(index-4)
return arg
func_args_systemv = func_args_stdcall
func_ret_systemv = func_ret_stdcall
func_prepare_systemv = func_prepare_stdcall
get_arg_n_systemv = get_arg_n_stdcall
def init_run(self, *args, **kwargs):
jitter.init_run(self, *args, **kwargs)
self.cpu.PC = self.pc
class jitter_armb(jitter_arml):
def __init__(self, *args, **kwargs):
sp = asmblock.AsmSymbolPool()
jitter.__init__(self, ir_armb(sp), *args, **kwargs)
self.vm.set_big_endian()
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