def render(self, mcanv, va):
trace = mcanv.mem
if va != trace.getStackCounter():
return DerefRenderer.render(self, mcanv, va)
pc = trace.getProgramCounter()
sym, is_thunk = trace.getSymByAddrThunkAware(pc)
if sym is None:
return DerefRenderer.render(self, mcanv, va)
# TODO: this code also exists in win32stealth and in hookbreakpoint
# we should put this somewhere common
platform = trace.getMeta('Platform')
arch = trace.getMeta('Architecture')
impapi = viv_impapi.getImportApi(platform, arch)
cc_name = impapi.getImpApiCallConv(sym)
emu = vtrace.getEmu(trace)
cc = emu.getCallingConvention(cc_name)
args_def = impapi.getImpApiArgs(sym)
if args_def is None:
# sym did not exist in impapi :(
logger.warning('sym but no impapi match: {}'.format(sym))
return DerefRenderer.render(self, mcanv, va)
argc = len(args_def)
curop = trace.parseOpcode(trace.getProgramCounter())
# use the calling convention to retrieve the args
args = None
if curop.isCall() or is_thunk:
args = cc.getPreCallArgs(trace, argc)
else:
args = cc.getCallArgs(trace, argc)
# since we are 'normalizing' the calls by visualizing all calling
# conventions in a stdcall fashion, some args (like the ones in
# registers don't have a stack va.
mcanv.addText('%s :\n' % sym)
fmt = ' arg%%d (%%s) 0x%%0%dx %%s\n' % (trace.getPointerSize() * 2, )
for index, arg in enumerate(args):
argtype = args_def[index][0]
argva = arg
if trace.isValidPointer(arg):
argva = trace.readMemoryFormat(arg, 'P')[0]
smc = e_canvas.StringMemoryCanvas(trace)
e_canvas_rend.AutoBytesRenderer(maxrend=64).render(smc, argva)
desc = str(smc)
mcanv.addText(fmt % (index, argtype, arg, desc))
mcanv.addText('-' * 5)
mcanv.addText('\n')
return DerefRenderer.render(self, mcanv, va)
def __init__(self, trace=None, parent=None):
VQTraceNotifier.__init__(self, trace)
vq_tree.VQTreeView.__init__(self, parent=parent)
self.descrend = e_mem_rend.AutoBytesRenderer()
self.setAlternatingRowColors(True)
# snapped in by someone else. use a signal instead.
self.regnames = None
# used to determine what registers have changed.
self.lastregs = {}
self.regvals = {}
self.setStyleSheet(vq_colors.getDefaultColors())
model = RegisterListModel(parent=self)
self.setModel(model)
def renderMetadata(self, mcanv, va):
trace = mcanv.mem
p = trace.readMemoryFormat(va, 'P')[0]
e_canvas_rend.AutoBytesRenderer().render(mcanv, p)
