def actions_before_verification(self, symbiotic):
if self._use_llvm_backend:
return
output = symbiotic.curfile + '.c'
runcmd(['llvm2c', symbiotic.curfile, '--o', output], DbgWatch('all'))
symbiotic.curfile = output
def actions_before_verification(self, symbiotic):
# link our specific funs
self._options.linkundef = ['verifier']
symbiotic.link_undefined(
only_func=['__VERIFIER_silent_exit', '__VERIFIER_exit'])
self._options.linkundef = []
# translate to C
output = symbiotic.curfile + '.c'
runcmd(['llvm2c', symbiotic.curfile, '--add-includes', '--o', output],
DbgWatch('all'))
symbiotic.curfile = output
def actions_before_verification(self, symbiotic):
# link our specific funs
old_undf = self._options.linkundef
self._options.linkundef = ['verifier']
funs = ['__VERIFIER_silent_exit', '__VERIFIER_exit',
'__INSTR_check_nontermination', '__INSTR_fail']
symbiotic.link_undefined(only_func=funs)
self._options.linkundef = old_undf
# translate to C
output = symbiotic.curfile + '.c'
runcmd(['llvm2c', symbiotic.curfile, '--add-includes', '--o', output],
DbgWatch('all'))
symbiotic.curfile = output
def actions_before_verification(self, symbiotic):
# link our specific funs
self._options.linkundef = ['verifier']
symbiotic.link_undefined(
only_func=['__VERIFIER_silent_exit', '__VERIFIER_exit'])
self._options.linkundef = []
if self._use_llvm_backend:
return
output = symbiotic.curfile + '.c'
runcmd([
'llvm2c', symbiotic.curfile, '--no-function-call-casts', '--o',
output
], DbgWatch('all'))
symbiotic.curfile = output
def generate_exec_witness(bindir, sources, opts, saveto = None):
assert len(sources) == 1 and "Can not generate witnesses for more sources yet"
if saveto is None:
saveto = '{0}.exe'.format(sources[:sources.rfind('.')])
print('Generating executable witness to : {0}'.format(saveto))
if opts.test_comp:
pth = get_harness_file(join(opts.testsuite_output))
else:
pth = get_harness_file(join(bindir, 'klee-last'))
from symbiotic.exceptions import SymbioticException
try:
from symbiotic.transform import CompileWatch
flags = ['-D__inline=']
if opts.property.memsafety():
flags+=['-fsanitize=address']
elif opts.property.signedoverflow() or opts.property.undefinedness():
flags+=['-fsanitize=undefined']
runcmd(['clang', '-g', pth, sources[0], '-o', saveto] + flags,
CompileWatch(), 'Generating executable witness failed')
except SymbioticException as e:
dbg(str(e))
def actions_before_verification(self, symbiotic):
output = symbiotic.curfile + '.c'
runcmd(['llvm2c', symbiotic.curfile, '--o', output],
DbgWatch('all'))
symbiotic.curfile = output
def actions_after_slicing(self, symbiotic):
llvmfile = symbiotic.llvmfile
newfile = '{0}-unrolled.bc'.format(llvmfile[:-3])
runcmd(['nidhugg', '-unroll=5', llvmfile, '-transform', newfile])
symbiotic.llvmfile = newfile