| import json |
| import os |
| import re |
| import subprocess |
| |
| from sixgill import Body |
| from collections import defaultdict, namedtuple |
| |
| scriptdir = os.path.abspath(os.path.join(os.path.dirname(__file__), "..")) |
| |
| HazardSummary = namedtuple('HazardSummary', ['function', 'variable', 'type', 'GCFunction', 'location']) |
| |
| def equal(got, expected): |
| if got != expected: |
| print("Got '%s', expected '%s'" % (got, expected)) |
| |
| def extract_unmangled(func): |
| return func.split('$')[-1] |
| |
| class Test(object): |
| def __init__(self, indir, outdir, cfg): |
| self.indir = indir |
| self.outdir = outdir |
| self.cfg = cfg |
| |
| def infile(self, path): |
| return os.path.join(self.indir, path) |
| |
| def binpath(self, prog): |
| return os.path.join(self.cfg.sixgill_bin, prog) |
| |
| def compile(self, source): |
| cmd = "{CXX} -c {source} -O3 -std=c++11 -fplugin={sixgill} -fplugin-arg-xgill-mangle=1".format( |
| source=self.infile(source), |
| CXX=self.cfg.cxx, sixgill=self.cfg.sixgill_plugin) |
| if self.cfg.verbose: |
| print("Running %s" % cmd) |
| subprocess.check_call(["sh", "-c", cmd]) |
| |
| def load_db_entry(self, dbname, pattern): |
| if not isinstance(pattern, basestring): |
| output = subprocess.check_output([self.binpath("xdbkeys"), dbname + ".xdb"]) |
| entries = output.splitlines() |
| matches = [f for f in entries if re.search(pattern, f)] |
| if len(matches) == 0: |
| raise Exception("entry not found") |
| if len(matches) > 1: |
| raise Exception("multiple entries found") |
| pattern = matches[0] |
| |
| output = subprocess.check_output([self.binpath("xdbfind"), "-json", dbname + ".xdb", pattern]) |
| return json.loads(output) |
| |
| def run_analysis_script(self, phase, upto=None): |
| file("defaults.py", "w").write('''\ |
| analysis_scriptdir = '{scriptdir}' |
| sixgill_bin = '{bindir}' |
| '''.format(scriptdir=scriptdir, bindir=self.cfg.sixgill_bin)) |
| cmd = [ os.path.join(scriptdir, "analyze.py"), phase ] |
| if upto: |
| cmd += [ "--upto", upto ] |
| cmd.append("--source=%s" % self.indir) |
| cmd.append("--objdir=%s" % self.outdir) |
| cmd.append("--js=%s" % self.cfg.js) |
| if self.cfg.verbose: |
| cmd.append("--verbose") |
| print("Running " + " ".join(cmd)) |
| subprocess.check_call(cmd) |
| |
| def computeGCTypes(self): |
| self.run_analysis_script("gcTypes", upto="gcTypes") |
| |
| def computeHazards(self): |
| self.run_analysis_script("callgraph") |
| |
| def load_text_file(self, filename, key=lambda l: l): |
| return [processed for processed in ( |
| key(line.strip()) for line in file(os.path.join(self.outdir, filename)) |
| ) if processed is not None] |
| |
| def load_suppressed_functions(self): |
| return set(self.load_text_file("suppressedFunctions.lst")) |
| |
| def load_gcTypes(self): |
| def grab_type(line): |
| m = re.match(r'^(GC\w+): (.*)', line) |
| if m: |
| return (m.group(1) + 's', m.group(2)) |
| |
| gctypes = defaultdict(list) |
| for collection, typename in self.load_text_file('gcTypes.txt', key=grab_type): |
| gctypes[collection].append(typename) |
| return gctypes |
| |
| def load_gcFunctions(self): |
| return self.load_text_file('gcFunctions.lst', key=extract_unmangled) |
| |
| def load_hazards(self): |
| def grab_hazard(line): |
| m = re.match(r"Function '(.*?)' has unrooted '(.*?)' of type '(.*?)' live across GC call '(.*?)' at (.*)", line) |
| if m: |
| info = list(m.groups()) |
| info[0] = info[0].split("$")[-1] |
| info[3] = info[3].split("$")[-1] |
| return HazardSummary(*info) |
| |
| return self.load_text_file('rootingHazards.txt', key=grab_hazard) |
| |
| def process_body(self, body): |
| return Body(body) |
| |
| def process_bodies(self, bodies): |
| return [ self.process_body(b) for b in bodies ] |
