# Prepare a tiny shellcode
shellcode = ''.join([
"\xe8\x00\x00\x00\x00", # CALL $
"X", # POP EAX
"\xc3", # RET
])
bin_stream = bin_stream_str(shellcode)
mdis = dis_x86_32(bin_stream)
print "Without callback:\n"
blocks = mdis.dis_multibloc(0)
print "\n".join(str(block) for block in blocks)
# Enable callback
cb_x86_funcs.append(cb_x86_callpop)
## Other method:
## mdis.dis_bloc_callback = cb_x86_callpop
# Clean disassembly cache
mdis.job_done.clear()
print "=" * 40
print "With callback:\n"
blocks_after = mdis.dis_multibloc(0)
print "\n".join(str(block) for block in blocks_after)
# Ensure the callback has been called
assert blocks.heads()[0].lines[0].name == "CALL"
assert blocks_after.heads()[0].lines[0].name == "PUSH"
# Update next blocks to process in the disassembly engine
cur_bloc.bto.clear()
cur_bloc.add_cst(loc_key, AsmConstraint.c_next)
# Prepare a tiny shellcode
shellcode = ''.join(["\xe8\x00\x00\x00\x00", # CALL $
"X", # POP EAX
"\xc3", # RET
])
bin_stream = bin_stream_str(shellcode)
mdis = dis_x86_32(bin_stream)
print "Without callback:\n"
asmcfg = mdis.dis_multiblock(0)
print "\n".join(str(block) for block in asmcfg.blocks)
# Enable callback
cb_x86_funcs.append(cb_x86_callpop)
## Other method:
## mdis.dis_block_callback = cb_x86_callpop
print "=" * 40
print "With callback:\n"
asmcfg_after = mdis.dis_multiblock(0)
print "\n".join(str(block) for block in asmcfg_after.blocks)
# Ensure the callback has been called
assert asmcfg.loc_key_to_block(asmcfg.heads()[0]).lines[0].name == "CALL"
assert asmcfg_after.loc_key_to_block(asmcfg_after.heads()[0]).lines[0].name == "PUSH"