mirror of
https://github.com/cea-sec/miasm
synced 2026-06-21 13:48:18 +00:00
Caroline Leman
5d10f696e0
- previous dead_simp function has been moved to data_flow.py - ira class has been simplified - reach analysis code has been 'clarified'
57 lines
1.1 KiB
Python
57 lines
1.1 KiB
Python
from pdb import pm
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from miasm2.arch.x86.arch import mn_x86
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from miasm2.core import parse_asm
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from miasm2.expression.expression import *
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from miasm2.core import asmblock
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from miasm2.arch.x86.ira import ir_a_x86_32
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from miasm2.analysis.data_flow import dead_simp
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# First, asm code
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blocks, symbol_pool = parse_asm.parse_txt(mn_x86, 32, '''
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main:
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MOV EAX, 1
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MOV EBX, 2
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MOV ECX, 2
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MOV DX, 2
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loop:
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INC EBX
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CMOVZ EAX, EBX
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ADD EAX, ECX
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JZ loop
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RET
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''')
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symbol_pool.set_offset(symbol_pool.getby_name("main"), 0x0)
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for block in blocks:
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print block
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print "symbols:"
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print symbol_pool
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patches = asmblock.asm_resolve_final(mn_x86, blocks, symbol_pool)
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# Translate to IR
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ir_arch = ir_a_x86_32(symbol_pool)
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for block in blocks:
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print 'add block'
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print block
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ir_arch.add_bloc(block)
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# Display IR
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for lbl, irblock in ir_arch.blocks.items():
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print irblock
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# Dead propagation
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open('graph.dot', 'w').write(ir_arch.graph.dot())
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print '*' * 80
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dead_simp(ir_arch)
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open('graph2.dot', 'w').write(ir_arch.graph.dot())
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# Display new IR
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print 'new ir blocks'
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for lbl, irblock in ir_arch.blocks.items():
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print irblock
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