from pdb import pm from miasm2.arch.x86.arch import mn_x86 from miasm2.core import parse_asm from miasm2.expression.expression import * from miasm2.core import asmblock from miasm2.arch.x86.ira import ir_a_x86_32 from miasm2.analysis.data_flow import dead_simp # First, asm code asmcfg, symbol_pool = parse_asm.parse_txt(mn_x86, 32, ''' main: MOV EAX, 1 MOV EBX, 2 MOV ECX, 2 MOV DX, 2 loop: INC EBX CMOVZ EAX, EBX ADD EAX, ECX JZ loop RET ''') symbol_pool.set_offset(symbol_pool.getby_name("main"), 0x0) for block in asmcfg.blocks: print block print "symbols:" print symbol_pool patches = asmblock.asm_resolve_final(mn_x86, asmcfg, symbol_pool) # Translate to IR ir_arch = ir_a_x86_32(symbol_pool) for block in asmcfg.blocks: print 'add block' print block ir_arch.add_block(block) # Display IR for lbl, irblock in ir_arch.blocks.items(): print irblock # Dead propagation open('graph.dot', 'w').write(ir_arch.graph.dot()) print '*' * 80 dead_simp(ir_arch) open('graph2.dot', 'w').write(ir_arch.graph.dot()) # Display new IR print 'new ir blocks' for lbl, irblock in ir_arch.blocks.items(): print irblock