def test_getSymByAddr_exact_false(self):
'''
test for bug that was replacing symresolvers with symbol objects.
'''
fname, base, size, width = ('foo', 0x0, 0, 4)
fres = e_sym_resolv.FileSymbol(fname, base, size, width)
self.symres.addSymbol(fres)
# now symobjsbyname['foo'] = FileSymbol
symcache = [(0x16001, 0, 'alpha', e_sym_resolv.SYMSTOR_SYM_SYMBOL)]
self.symres.impSymCache(symcache, symfname='foo')
# look up the FileSymbol as a 'Symbol' (not a resolver)
# this causes the symobjsbyname to smash in a Symbol instead of a
# SymbolResolver (symobjsbyname['foo'] = Symbol)
sym = self.symres.getSymByAddr(0x10, exact=False)
assert (sym != None)
# now symobjsbyname['foo'] = Symbol
# force return of a sym that has a fname set
# causes a .get on symobjsbyname, retrieves Symbol, but then tries
# to cache since it should be a resolver since we have an fname.
# boom.
sym = self.symres.getSymByAddr(0x16010, exact=False)
assert (sym != None)
def addLibraryBase(self, libname, address, always=False):
"""
This should be used *at load time* to setup the library
event metadata.
This *must* be called from a context where it's safe to
fire notifiers, because it will fire a notifier to alert
about a LOAD_LIBRARY. (This means *not* from inside another
notifer)
"""
self.setMeta("LatestLibrary", None)
self.setMeta("LatestLibraryNorm", None)
normname = self.normFileName(libname)
if self.getSymByName(normname) is not None:
normname = "%s_%.8x" % (normname, address)
self.getMeta("LibraryPaths")[address] = libname
self.getMeta("LibraryBases")[normname] = address
self.setMeta("LatestLibrary", libname)
self.setMeta("LatestLibraryNorm", normname)
# Only actually do library work with a file or force
if os.path.exists(libname) or always:
width = self.arch.getPointerSize()
sym = e_sym_resolv.FileSymbol(normname, address, 0, width=width)
sym.casesens = self.casesens
self.addSymbol(sym)
self.libpaths[normname] = libname
self.fireNotifiers(vtrace.NOTIFY_LOAD_LIBRARY)
def test_resolver(self):
fname, base, size, width = ('foo', 0x0, 0, 4)
fres = e_sym_resolv.FileSymbol(fname, base, size, width)
self.symres.addSymbol(fres)
assert(fname in self.symres.symobjsbyname)
assert(isinstance(self.symres.symobjsbyname[fname], e_sym_resolv.SymbolResolver))
def test_sym(self):
fname, base, size, width = ('foo', 0x1234, 0x5678, 4)
fres = e_sym_resolv.FileSymbol(fname, base, size, width)
# check Symbol vars
assert (fres.name == fname)
assert (fres.value == base)
assert (fres.size == size)
#assert(fres.fname == fname)
# check SymbolResolver vars
assert (fres.width == width)
assert (fres.baseaddr == base)
def test_resolver_fname_none(self):
with self.assertRaises(Exception):
fresolv = e_sym_resolv.FileSymbol(None, 0, 0, 4)
