83 lines
2.1 KiB
Python
Executable File
83 lines
2.1 KiB
Python
Executable File
#!/usr/bin/python2
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import sys
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import re
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import argparse
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from Emulator import Emulator, CodeParseException, REGISTERS
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from TikzPainter import TikzPainter
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import Junk
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def parse_args ():
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parser = argparse.ArgumentParser(description="For fun x86-64 emulator and stack visualizer.")
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parser.add_argument('-i', '--input-file', default='-', help = '.S file to use as input', dest = 'input-file')
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parser.add_argument('-o', '--output-file', default='-', help = '.S file to use as output', dest = 'output-file')
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for register in REGISTERS:
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parser.add_argument('--'+register[1:], nargs = 1, type = int, default = None, dest = register, help = 'the initial value of the register')
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args = vars(parser.parse_args())
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# Determine args #
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registers_init = {}
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for register in REGISTERS:
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registers_init[register[1:]] = Junk.Junk('prev '+register)
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#
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registers_init['rip'] = 0
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registers_init['rsp'] = 0
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registers_init['rbp'] = Junk.Junk('old bp')
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#
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for register in REGISTERS:
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if args[register]:
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registers_init[register[1:]] = args[register][0]
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#
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program = ""
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if args['input-file'] == '-':
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program = sys.stdin.read()
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else:
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with open(args['input-file']) as file:
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program = file.read()
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# Output file:
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output_file = None
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if args['output-file'] == '-':
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output_file = sys.stdout
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else:
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output_file = open(args['output-file'], 'w')
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##
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return (program, registers_init, output_file)
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def main ():
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(program, registers_init, output_file) = parse_args()
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# Determine registers to display
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registers_to_draw = ["%rip","%rbp","%rsp", ""]
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for match in re.findall(r"%r[a-z0-9]{1,2}", program):
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if match not in registers_to_draw:
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registers_to_draw.append(match)
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# Setup emulator and drawer
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emu = Emulator(program)
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emu.setRegs(**registers_init)
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emu.setStack(Junk.Junk("junk..."), Junk.Junk("calling eip"))
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painter = TikzPainter(registers_to_draw)
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# Iteratively draw states.
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painter.drawState(emu)
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for line_nr in emu:
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painter.drawState(emu, line_nr)
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painter.drawNames(emu)
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# Display result
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output_file.write(painter.to_string())
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output_file.close()
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if __name__ == "__main__":
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main()
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