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import logging
from miasm2.jitter.jitload import jitter, named_arguments
from miasm2.core import asmbloc
from miasm2.core.utils import *
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 = asmbloc.asm_symbol_pool()
jitter.__init__(self, ir_arml(sp), *args, **kwargs)
self.vm.set_little_endian()
def push_uint32_t(self, v):
self.cpu.SP -= 4
self.vm.set_mem(self.cpu.SP, pck32(v))
def pop_uint32_t(self):
x = upck32(self.vm.get_mem(self.cpu.SP, 4))
self.cpu.SP += 4
return x
def get_stack_arg(self, n):
x = upck32(self.vm.get_mem(self.cpu.SP + 4 * n, 4))
return x
# calling conventions
@named_arguments
def func_args_stdcall(self, n_args):
args = []
for i in xrange(min(n_args, 4)):
args.append(self.cpu.get_gpreg()['R%d' % i])
for i in xrange(max(0, n_args - 4)):
args.append(self.get_stack_arg(i))
ret_ad = self.cpu.LR
return ret_ad, args
def func_ret_stdcall(self, ret_addr, ret_value=None):
self.pc = self.cpu.PC = ret_addr
if ret_value is not None:
self.cpu.R0 = ret_value
return True
def get_arg_n_stdcall(self, n):
if n < 4:
arg = self.cpu.get_gpreg()['R%d' % n]
else:
arg = self.get_stack_arg(n-4)
return arg
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 = asmbloc.asm_symbol_pool()
jitter.__init__(self, ir_armb(sp), *args, **kwargs)
self.vm.set_big_endian()
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