def remake_trace(trace):
trace = list(enumerate(t for i, t in trace))
tbs = make_tbs(trace)
tbdict = make_tbdict(tbs)
cfg = make_slice_cfg(tbs)
return trace, tbs, tbdict, cfg
def remake_trace(trace):
trace = list(enumerate(t for i,t in trace))
tbs = make_tbs(trace)
tbdict = make_tbdict(tbs)
cfg = make_slice_cfg(tbs)
return trace, tbs, tbdict, cfg
# the derivation of the address of a buffer.
if is_memop(insn):
uses_set -= set(["A0"])
if defs_set & work:
work = (work - defs_set) | uses_set
if debug: print i, repr(insn)
if debug: print "Working set at end:", work
return source in work
if __name__ == "__main__":
trace, inbufs, outbufs = load_trace(file(sys.argv[1]))
tbs = make_tbs(trace)
tbdict = make_tbdict(tbs)
cfg = make_slice_cfg(tbs)
alloc_ctr = counter()
alloc_calls = defaultdict(list)
alloc_rets = []
for m, argbytes, name in mallocs:
for idx in range(len(
tbdict[m])): # This allows us to change the tbdict during
tb = tbdict[m][idx] # iteration without getting stale data.
i = tbs.index(tb)
callsite = tbs[i - 1]
# Find the return address and get its TB object
# Note: this might fail if we have nested calls, but worry
# For this one special case we DON'T want to track
# the derivation of the address of a buffer.
if is_memop(insn):
uses_set -= set(["A0"])
if defs_set & work:
work = (work - defs_set) | uses_set
if debug: print i,repr(insn)
if debug: print "Working set at end:", work
return source in work
if __name__ == "__main__":
trace, inbufs, outbufs = load_trace(file(sys.argv[1]))
tbs = make_tbs(trace)
tbdict = make_tbdict(tbs)
cfg = make_slice_cfg(tbs)
alloc_ctr = counter()
alloc_calls = defaultdict(list)
alloc_rets = []
for m,argbytes,name in mallocs:
for idx in range(len(tbdict[m])): # This allows us to change the tbdict during
tb = tbdict[m][idx] # iteration without getting stale data.
i = tbs.index(tb)
callsite = tbs[i-1]
# Find the return address and get its TB object
# Note: this might fail if we have nested calls, but worry
# about that later. The "right" solution is a shadow stack