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#!/usr/bin/env python
#-*- coding:utf-8 -*-
from miasm2.expression.expression import *
from miasm2.ir.ir import ir, irbloc
from miasm2.ir.analysis import ira
from miasm2.arch.msp430.sem import ir_msp430
from miasm2.arch.msp430.regs import *
# from miasm2.core.graph import DiGraph
class ir_a_msp430_base(ir_msp430, ira):
def __init__(self, symbol_pool=None):
ir_msp430.__init__(self, symbol_pool)
self.ret_reg = self.arch.regs.R15
class ir_a_msp430(ir_a_msp430_base):
def __init__(self, symbol_pool=None):
ir_a_msp430_base.__init__(self, symbol_pool)
# for test XXX TODO
def set_dead_regs(self, b):
b.rw[-1][1].add(self.arch.regs.zf)
b.rw[-1][1].add(self.arch.regs.nf)
b.rw[-1][1].add(self.arch.regs.of)
b.rw[-1][1].add(self.arch.regs.cf)
b.rw[-1][1].add(self.arch.regs.res)
b.rw[-1][1].add(self.arch.regs.scg1)
b.rw[-1][1].add(self.arch.regs.scg0)
b.rw[-1][1].add(self.arch.regs.osc)
b.rw[-1][1].add(self.arch.regs.cpuoff)
b.rw[-1][1].add(self.arch.regs.gie)
def call_effects(self, ad):
irs = [[ExprAff(self.ret_reg, ExprOp('call_func_ret', ad, self.sp)),
ExprAff(self.sp, ExprOp('call_func_stack', ad, self.sp)),
]]
return irs
def post_add_bloc(self, bloc, ir_blocs):
ir.post_add_bloc(self, bloc, ir_blocs)
# flow_graph = DiGraph()
l = bloc.lines[-1]
if not l.is_subcall():
return
for irb in ir_blocs:
# print 'X'*40
# print irb
pc_val = None
for exprs in irb.irs:
for e in exprs:
if e.dst == PC:
pc_val = e.src
if pc_val is None:
continue
l = bloc.lines[-1]
# print str(l), 'IS CALL!'
lbl = bloc.get_next()
new_lbl = self.gen_label()
irs = self.call_effects(pc_val)
nbloc = irbloc(new_lbl, ExprId(lbl, size=self.pc.size), irs)
nbloc.lines = [l]
self.blocs[new_lbl] = nbloc
irb.dst = ExprId(new_lbl, size=self.pc.size)
def get_out_regs(self, b):
return set([self.ret_reg, self.sp])
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