def test_get_command_line_for_application(self): """Test get_command_line_for_application.""" self._setup_env(job_type='job') self.assertIsNotNone(build_manager.setup_build()) fuzz_inputs = os.environ['FUZZ_INPUTS'] file_to_run = os.path.join(fuzz_inputs, 'file_to_run') os.environ['APP_ARGS'] = '%TESTCASE% %TESTCASE_FILE_URL%' command_line = testcase_manager.get_command_line_for_application( file_to_run) app_path = os.environ['APP_PATH'] worker_fuzz_inputs = file_host.rebase_to_worker_root(fuzz_inputs) worker_file_to_run = os.path.join(worker_fuzz_inputs, 'file_to_run') self.assertEqual( command_line, '%s %s %s' % (app_path, worker_file_to_run, utils.file_path_to_file_url(worker_file_to_run))) launcher_path = '/path/to/launcher' os.environ['LAUNCHER_PATH'] = launcher_path command_line = testcase_manager.get_command_line_for_application( file_to_run) self.assertEqual( command_line, '%s %s %s %s' % (launcher_path, app_path, file_to_run, file_to_run))
def update_build(apk_path, force_update=True): """Prepares the device and updates the build if necessary.""" # Prepare device for app install. initialize_device() # On Android, we may need to write a command line file. We do this in # advance so that we do not have to write this to the device multiple # times. # TODO(mbarbella): Platforms code should not depend on bot. from bot import testcase_manager testcase_manager.get_command_line_for_application( write_command_line_file=True) # Install the app if it does not exist. install_application_if_needed(apk_path, force_update=force_update)
def get_impact_on_build(build_type, current_version, testcase, testcase_file_path): """Return impact and additional trace on a prod build given build_type.""" build = build_manager.setup_production_build(build_type) if not build: raise BuildFailedException( 'Build setup failed for %s' % build_type.capitalize()) if not build_manager.check_app_path(): raise AppFailedException() version = build.revision if version == current_version: return Impact(current_version, likely=False) app_path = environment.get_value('APP_PATH') command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path, needs_http=testcase.http_flag) result = testcase_manager.test_for_crash_with_retries( testcase, testcase_file_path, environment.get_value('TEST_TIMEOUT'), http_flag=testcase.http_flag) if result.is_crash(): symbolized_crash_stacktrace = result.get_stacktrace(symbolized=True) unsymbolized_crash_stacktrace = result.get_stacktrace(symbolized=False) stacktrace = utils.get_crash_stacktrace_output( command, symbolized_crash_stacktrace, unsymbolized_crash_stacktrace, build_type) return Impact(version, likely=False, extra_trace=stacktrace) return Impact()
def reproduce(self, target_path, input_path, arguments, max_time): """Reproduce a crash given an input. Args: target_path: Path to the fuzzer script or binary. input_path: Path to the reproducer input. arguments: Additional arguments needed for reproduction. max_time: Maximum allowed time for the reproduction. Returns: A ReproduceResult. """ # For blackbox fuzzers, |target_path| supplies the path to the fuzzer script # rather than a target in the build archive. fuzzer_path = target_path os.chmod(fuzzer_path, 0o775) app_path = environment.get_value('APP_PATH') app_args = testcase_manager.get_command_line_for_application( get_arguments_only=True).strip() args = _get_arguments(app_path, app_args) args.append(f'--testcase_path={input_path}') result = _run_with_interpreter_if_needed(fuzzer_path, args, max_time) return engine.ReproduceResult(result.command, result.return_code, result.time_executed, result.output)
def _check_fixed_for_custom_binary(testcase, job_type, testcase_file_path): """Simplified fixed check for test cases using custom binaries.""" revision = environment.get_value('APP_REVISION') # Update comments to reflect bot information and clean up old comments. testcase_id = testcase.key.id() testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment(testcase, data_types.TaskState.STARTED) build_manager.setup_build() if not build_manager.check_app_path(): testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment( testcase, data_types.TaskState.ERROR, 'Build setup failed for custom binary') build_fail_wait = environment.get_value('FAIL_WAIT') tasks.add_task( 'progression', testcase_id, job_type, wait_time=build_fail_wait) return test_timeout = environment.get_value('TEST_TIMEOUT', 10) result = testcase_manager.test_for_crash_with_retries( testcase, testcase_file_path, test_timeout, http_flag=testcase.http_flag) _log_output(revision, result) # Re-fetch to finalize testcase updates in branches below. testcase = data_handler.get_testcase_by_id(testcase.key.id()) # If this still crashes on the most recent build, it's not fixed. The task # will be rescheduled by a cron job and re-attempted eventually. if result.is_crash(): app_path = environment.get_value('APP_PATH') command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path, needs_http=testcase.http_flag) symbolized_crash_stacktrace = result.get_stacktrace(symbolized=True) unsymbolized_crash_stacktrace = result.get_stacktrace(symbolized=False) stacktrace = utils.get_crash_stacktrace_output( command, symbolized_crash_stacktrace, unsymbolized_crash_stacktrace) testcase.last_tested_crash_stacktrace = data_handler.filter_stacktrace( stacktrace) _update_completion_metadata( testcase, revision, is_crash=True, message='still crashes on latest custom build') return # Retry once on another bot to confirm our results and in case this bot is in # a bad state which we didn't catch through our usual means. if data_handler.is_first_retry_for_task(testcase, reset_after_retry=True): tasks.add_task('progression', testcase_id, job_type) _update_completion_metadata(testcase, revision) return # The bug is fixed. testcase.fixed = 'Yes' testcase.open = False _update_completion_metadata( testcase, revision, message='fixed on latest custom build')
def fuzz(self, target_path, options, reproducers_dir, max_time): """Run a fuzzing session. Args: target_path: Path to the fuzzer script or binary. options: The FuzzOptions object returned by prepare(). reproducers_dir: The directory to put reproducers in when crashes are found. max_time: Maximum allowed time for the fuzzing to run. Returns: A FuzzResult object. """ # For blackbox fuzzers, |target_path| supplies the path to the fuzzer script # rather than a target in the build archive. fuzzer_path = target_path os.chmod(fuzzer_path, 0o775) app_path = environment.get_value('APP_PATH') app_args = testcase_manager.get_command_line_for_application( get_arguments_only=True).strip() corpus_dir = options.corpus_dir command_line_args = _get_arguments(app_path, app_args) command_line_args.append(f'--input_dir={corpus_dir}') result = _run_with_interpreter_if_needed(fuzzer_path, command_line_args, max_time) crashes = [] for testcase_path in os.listdir(reproducers_dir): if not testcase_path.startswith(TESTCASE_PREFIX): continue output_path = OUTPUT_PREFIX + testcase_path[len(TESTCASE_PREFIX):] absolute_output_path = os.path.join(reproducers_dir, output_path) # If no output was written for a test case, skip it. if not os.path.exists(absolute_output_path): continue with open(absolute_output_path, 'r', errors='replace') as handle: output = handle.read() # Filter obviously non-crashing test cases. Crashes still follow the # normal flow in fuzz task to ensure that the state should not be ignored # for other reasons, but we don't want to log every test case for the # fuzzers that don't do their own crash processing. state = stack_analyzer.get_crash_data(output) if not state.crash_type: continue full_testcase_path = os.path.join(reproducers_dir, testcase_path) crash = engine.Crash(full_testcase_path, output, options.arguments, int(result.time_executed)) crashes.append(crash) # TODO(mbarbella): Support stats. stats = {} return engine.FuzzResult(result.output, result.command, crashes, stats, result.time_executed)
def get_impact_on_build(build_type, current_version, testcase, testcase_file_path): """Return impact and additional trace on a prod build given build_type.""" # TODO(yuanjunh): remove es_enabled var after testing is done. es_enabled = testcase.get_metadata('es_enabled', False) if build_type == 'extended_stable' and not es_enabled: return Impact() build = build_manager.setup_production_build(build_type) if not build: raise BuildFailedException( 'Build setup failed for %s' % build_type.capitalize()) if not build_manager.check_app_path(): raise AppFailedException() version = build.revision if version == current_version: return Impact(current_version, likely=False) app_path = environment.get_value('APP_PATH') command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path, needs_http=testcase.http_flag) if es_enabled: logs.log( "ES build for testcase %d, command: %s" % (testcase.key.id(), command)) result = testcase_manager.test_for_crash_with_retries( testcase, testcase_file_path, environment.get_value('TEST_TIMEOUT'), http_flag=testcase.http_flag) if result.is_crash(): symbolized_crash_stacktrace = result.get_stacktrace(symbolized=True) unsymbolized_crash_stacktrace = result.get_stacktrace(symbolized=False) stacktrace = utils.get_crash_stacktrace_output( command, symbolized_crash_stacktrace, unsymbolized_crash_stacktrace, build_type) return Impact(version, likely=False, extra_trace=stacktrace) return Impact()
def execute_task(testcase_id, job_type): """Run a test case with a different job type to see if they reproduce.""" testcase = data_handler.get_testcase_by_id(testcase_id) if not testcase: return if environment.is_engine_fuzzer_job( testcase.job_type) != environment.is_engine_fuzzer_job(job_type): # We should never reach here. But in case we do, we should bail out as # otherwise we will run into exceptions. return # Use a cloned testcase entity with different fuzz target paramaters for # a different fuzzing engine. original_job_type = testcase.job_type testcase = _get_variant_testcase_for_job(testcase, job_type) # Setup testcase and its dependencies. file_list, _, testcase_file_path = setup.setup_testcase(testcase, job_type) if not file_list: return # Set up a custom or regular build. We explicitly omit the crash revision # since we want to test against the latest build here. build_manager.setup_build() # Check if we have an application path. If not, our build failed to setup # correctly. if not build_manager.check_app_path(): testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment( testcase, data_types.TaskState.ERROR, "Build setup failed with job: " + job_type, ) return # Disable gestures if we're running on a different platform from that of # the original test case. use_gestures = testcase.platform == environment.platform().lower() # Reproduce the crash. app_path = environment.get_value("APP_PATH") command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path, needs_http=testcase.http_flag) test_timeout = environment.get_value("TEST_TIMEOUT", 10) revision = environment.get_value("APP_REVISION") result = testcase_manager.test_for_crash_with_retries( testcase, testcase_file_path, test_timeout, http_flag=testcase.http_flag, use_gestures=use_gestures, compare_crash=False, ) if result.is_crash() and not result.should_ignore(): crash_state = result.get_state() crash_type = result.get_type() security_flag = result.is_security_issue() gestures = testcase.gestures if use_gestures else None one_time_crasher_flag = not testcase_manager.test_for_reproducibility( testcase.fuzzer_name, testcase.actual_fuzzer_name(), testcase_file_path, crash_state, security_flag, test_timeout, testcase.http_flag, gestures, ) if one_time_crasher_flag: status = data_types.TestcaseVariantStatus.FLAKY else: status = data_types.TestcaseVariantStatus.REPRODUCIBLE crash_comparer = CrashComparer(crash_state, testcase.crash_state) is_similar = (crash_comparer.is_similar() and security_flag == testcase.security_flag) unsymbolized_crash_stacktrace = result.get_stacktrace(symbolized=False) symbolized_crash_stacktrace = result.get_stacktrace(symbolized=True) crash_stacktrace_output = utils.get_crash_stacktrace_output( command, symbolized_crash_stacktrace, unsymbolized_crash_stacktrace) else: status = data_types.TestcaseVariantStatus.UNREPRODUCIBLE is_similar = False crash_type = None crash_state = None security_flag = False crash_stacktrace_output = "No crash occurred." if original_job_type == job_type: # This case happens when someone clicks 'Update last tested stacktrace using # trunk build' button. testcase = data_handler.get_testcase_by_id(testcase_id) testcase.last_tested_crash_stacktrace = data_handler.filter_stacktrace( crash_stacktrace_output) testcase.set_metadata("last_tested_crash_revision", revision, update_testcase=True) else: # Regular case of variant analysis. variant = data_handler.get_testcase_variant(testcase_id, job_type) variant.status = status variant.revision = revision variant.crash_type = crash_type variant.crash_state = crash_state variant.security_flag = security_flag variant.is_similar = is_similar # Explicitly skipping crash stacktrace for now as it make entities larger # and we plan to use only crash paramaters in UI. variant.put()
def execute_task(testcase_id, job_type): """Execute a symbolize command.""" # Locate the testcase associated with the id. testcase = data_handler.get_testcase_by_id(testcase_id) # We should atleast have a symbolized debug or release build. if not build_manager.has_symbolized_builds(): return data_handler.update_testcase_comment(testcase, data_types.TaskState.STARTED) # Setup testcase and its dependencies. file_list, _, testcase_file_path = setup.setup_testcase(testcase, job_type) if not file_list: return # Initialize variables. build_fail_wait = environment.get_value("FAIL_WAIT") old_crash_stacktrace = data_handler.get_stacktrace(testcase) sym_crash_type = testcase.crash_type sym_crash_address = testcase.crash_address sym_crash_state = testcase.crash_state sym_redzone = DEFAULT_REDZONE warmup_timeout = environment.get_value("WARMUP_TIMEOUT") # Decide which build revision to use. if testcase.crash_stacktrace == "Pending": # This usually happen when someone clicked the 'Update stacktrace from # trunk' button on the testcase details page. In this case, we are forced # to use trunk. No revision -> trunk build. build_revision = None else: build_revision = testcase.crash_revision # Set up a custom or regular build based on revision. build_manager.setup_build(build_revision) # Get crash revision used in setting up build. crash_revision = environment.get_value("APP_REVISION") if not build_manager.check_app_path(): testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, "Build setup failed") tasks.add_task( "symbolize", testcase_id, job_type, wait_time=build_fail_wait) return # ASAN tool settings (if the tool is used). # See if we can get better stacks with higher redzone sizes. # A UAF might actually turn out to be OOB read/write with a bigger redzone. if environment.tool_matches("ASAN", job_type) and testcase.security_flag: redzone = MAX_REDZONE while redzone >= MIN_REDZONE: environment.reset_current_memory_tool_options( redzone_size=testcase.redzone, disable_ubsan=testcase.disable_ubsan) process_handler.terminate_stale_application_instances() command = testcase_manager.get_command_line_for_application( testcase_file_path, needs_http=testcase.http_flag) return_code, crash_time, output = process_handler.run_process( command, timeout=warmup_timeout, gestures=testcase.gestures) crash_result = CrashResult(return_code, crash_time, output) if crash_result.is_crash() and "AddressSanitizer" in output: state = crash_result.get_symbolized_data() security_flag = crash_result.is_security_issue() if (not crash_analyzer.ignore_stacktrace(state.crash_stacktrace) and security_flag == testcase.security_flag and state.crash_type == testcase.crash_type and (state.crash_type != sym_crash_type or state.crash_state != sym_crash_state)): logs.log("Changing crash parameters.\nOld : %s, %s, %s" % (sym_crash_type, sym_crash_address, sym_crash_state)) sym_crash_type = state.crash_type sym_crash_address = state.crash_address sym_crash_state = state.crash_state sym_redzone = redzone old_crash_stacktrace = state.crash_stacktrace logs.log("\nNew : %s, %s, %s" % (sym_crash_type, sym_crash_address, sym_crash_state)) break redzone /= 2 # We should have atleast a symbolized debug or a release build. symbolized_builds = build_manager.setup_symbolized_builds(crash_revision) if not symbolized_builds or ( not build_manager.check_app_path() and not build_manager.check_app_path("APP_PATH_DEBUG")): testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, "Build setup failed") tasks.add_task( "symbolize", testcase_id, job_type, wait_time=build_fail_wait) return # Increase malloc_context_size to get all stack frames. Default is 30. environment.reset_current_memory_tool_options( redzone_size=sym_redzone, malloc_context_size=STACK_FRAME_COUNT, symbolize_inline_frames=True, disable_ubsan=testcase.disable_ubsan, ) # TSAN tool settings (if the tool is used). if environment.tool_matches("TSAN", job_type): environment.set_tsan_max_history_size() # Do the symbolization if supported by this application. result, sym_crash_stacktrace = get_symbolized_stacktraces( testcase_file_path, testcase, old_crash_stacktrace, sym_crash_state) # Update crash parameters. testcase = data_handler.get_testcase_by_id(testcase_id) testcase.crash_type = sym_crash_type testcase.crash_address = sym_crash_address testcase.crash_state = sym_crash_state testcase.crash_stacktrace = data_handler.filter_stacktrace( sym_crash_stacktrace) if not result: data_handler.update_testcase_comment( testcase, data_types.TaskState.ERROR, "Unable to reproduce crash, skipping " "stacktrace update", ) else: # Switch build url to use the less-optimized symbolized build with better # stacktrace. build_url = environment.get_value("BUILD_URL") if build_url: testcase.set_metadata("build_url", build_url, update_testcase=False) data_handler.update_testcase_comment(testcase, data_types.TaskState.FINISHED) testcase.symbolized = True testcase.crash_revision = crash_revision testcase.put() # We might have updated the crash state. See if we need to marked as duplicate # based on other testcases. data_handler.handle_duplicate_entry(testcase) task_creation.create_blame_task_if_needed(testcase) # Switch current directory before builds cleanup. root_directory = environment.get_value("ROOT_DIR") os.chdir(root_directory) # Cleanup symbolized builds which are space-heavy. symbolized_builds.delete()
def get_symbolized_stacktraces(testcase_file_path, testcase, old_crash_stacktrace, expected_state): """Use the symbolized builds to generate an updated stacktrace.""" # Initialize variables. app_path = environment.get_value("APP_PATH") app_path_debug = environment.get_value("APP_PATH_DEBUG") long_test_timeout = environment.get_value("WARMUP_TIMEOUT") retry_limit = environment.get_value("FAIL_RETRIES") symbolized = False debug_build_stacktrace = "" release_build_stacktrace = old_crash_stacktrace # Symbolize using the debug build first so that the debug build stacktrace # comes after the more important release build stacktrace. if app_path_debug: for _ in range(retry_limit): process_handler.terminate_stale_application_instances() command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path_debug, needs_http=testcase.http_flag, ) return_code, crash_time, output = process_handler.run_process( command, timeout=long_test_timeout, gestures=testcase.gestures) crash_result = CrashResult(return_code, crash_time, output) if crash_result.is_crash(): state = crash_result.get_symbolized_data() if crash_analyzer.ignore_stacktrace(state.crash_stacktrace): continue unsymbolized_crash_stacktrace = crash_result.get_stacktrace( symbolized=False) debug_build_stacktrace = utils.get_crash_stacktrace_output( command, state.crash_stacktrace, unsymbolized_crash_stacktrace, build_type="debug", ) symbolized = True break # Symbolize using the release build. if app_path: for _ in range(retry_limit): process_handler.terminate_stale_application_instances() command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path, needs_http=testcase.http_flag) return_code, crash_time, output = process_handler.run_process( command, timeout=long_test_timeout, gestures=testcase.gestures) crash_result = CrashResult(return_code, crash_time, output) if crash_result.is_crash(): state = crash_result.get_symbolized_data() if crash_analyzer.ignore_stacktrace(state.crash_stacktrace): continue if state.crash_state != expected_state: continue # Release stack's security flag has to match the symbolized release # stack's security flag. security_flag = crash_result.is_security_issue() if security_flag != testcase.security_flag: continue unsymbolized_crash_stacktrace = crash_result.get_stacktrace( symbolized=False) release_build_stacktrace = utils.get_crash_stacktrace_output( command, state.crash_stacktrace, unsymbolized_crash_stacktrace, build_type="release", ) symbolized = True break stacktrace = release_build_stacktrace if debug_build_stacktrace: stacktrace += "\n\n" + debug_build_stacktrace return symbolized, stacktrace
def find_fixed_range(testcase_id, job_type): """Attempt to find the revision range where a testcase was fixed.""" deadline = tasks.get_task_completion_deadline() testcase = data_handler.get_testcase_by_id(testcase_id) if not testcase: return if testcase.fixed: logs.log_error('Fixed range is already set as %s, skip.' % testcase.fixed) return # Setup testcase and its dependencies. file_list, _, testcase_file_path = setup.setup_testcase(testcase, job_type) if not file_list: return # Set a flag to indicate we are running progression task. This shows pending # status on testcase report page and avoid conflicting testcase updates by # triage cron. testcase.set_metadata('progression_pending', True) # Custom binaries are handled as special cases. if build_manager.is_custom_binary(): _check_fixed_for_custom_binary(testcase, job_type, testcase_file_path) return build_bucket_path = build_manager.get_primary_bucket_path() revision_list = build_manager.get_revisions_list(build_bucket_path, testcase=testcase) if not revision_list: testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, 'Failed to fetch revision list') tasks.add_task('progression', testcase_id, job_type) return # Use min, max_index to mark the start and end of revision list that is used # for bisecting the progression range. Set start to the revision where noticed # the crash. Set end to the trunk revision. Also, use min, max from past run # if it timed out. min_revision = testcase.get_metadata('last_progression_min') max_revision = testcase.get_metadata('last_progression_max') if min_revision or max_revision: # Clear these to avoid using them in next run. If this run fails, then we # should try next run without them to see it succeeds. If this run succeeds, # we should still clear them to avoid capping max revision in next run. testcase = data_handler.get_testcase_by_id(testcase_id) testcase.delete_metadata('last_progression_min', update_testcase=False) testcase.delete_metadata('last_progression_max', update_testcase=False) testcase.put() last_tested_revision = testcase.get_metadata('last_tested_crash_revision') known_crash_revision = last_tested_revision or testcase.crash_revision if not min_revision: min_revision = known_crash_revision if not max_revision: max_revision = revisions.get_last_revision_in_list(revision_list) min_index = revisions.find_min_revision_index(revision_list, min_revision) if min_index is None: raise errors.BuildNotFoundError(min_revision, job_type) max_index = revisions.find_max_revision_index(revision_list, max_revision) if max_index is None: raise errors.BuildNotFoundError(max_revision, job_type) testcase = data_handler.get_testcase_by_id(testcase_id) data_handler.update_testcase_comment(testcase, data_types.TaskState.STARTED, 'r%d' % max_revision) # Check to see if this testcase is still crashing now. If it is, then just # bail out. result = _testcase_reproduces_in_revision(testcase, testcase_file_path, job_type, max_revision, update_metadata=True) if result.is_crash(): logs.log('Found crash with same signature on latest revision r%d.' % max_revision) app_path = environment.get_value('APP_PATH') command = testcase_manager.get_command_line_for_application( testcase_file_path, app_path=app_path, needs_http=testcase.http_flag) symbolized_crash_stacktrace = result.get_stacktrace(symbolized=True) unsymbolized_crash_stacktrace = result.get_stacktrace(symbolized=False) stacktrace = utils.get_crash_stacktrace_output( command, symbolized_crash_stacktrace, unsymbolized_crash_stacktrace) testcase = data_handler.get_testcase_by_id(testcase_id) testcase.last_tested_crash_stacktrace = data_handler.filter_stacktrace( stacktrace) _update_completion_metadata( testcase, max_revision, is_crash=True, message='still crashes on latest revision r%s' % max_revision) # Since we've verified that the test case is still crashing, clear out any # metadata indicating potential flake from previous runs. task_creation.mark_unreproducible_if_flaky(testcase, False) # For chromium project, save latest crash information for later upload # to chromecrash/. state = result.get_symbolized_data() crash_uploader.save_crash_info_if_needed(testcase_id, max_revision, job_type, state.crash_type, state.crash_address, state.frames) return # Don't burden NFS server with caching these random builds. environment.set_value('CACHE_STORE', False) # Verify that we do crash in the min revision. This is assumed to be true # while we are doing the bisect. result = _testcase_reproduces_in_revision(testcase, testcase_file_path, job_type, min_revision) if result and not result.is_crash(): testcase = data_handler.get_testcase_by_id(testcase_id) # Retry once on another bot to confirm our result. if data_handler.is_first_retry_for_task(testcase, reset_after_retry=True): tasks.add_task('progression', testcase_id, job_type) error_message = ( 'Known crash revision %d did not crash, will retry on another bot to ' 'confirm result' % known_crash_revision) data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, error_message) _update_completion_metadata(testcase, max_revision) return _clear_progression_pending(testcase) error_message = ('Known crash revision %d did not crash' % known_crash_revision) data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, error_message) task_creation.mark_unreproducible_if_flaky(testcase, True) return # Start a binary search to find last non-crashing revision. At this point, we # know that we do crash in the min_revision, and do not crash in max_revision. while time.time() < deadline: min_revision = revision_list[min_index] max_revision = revision_list[max_index] # If the min and max revisions are one apart this is as much as we can # narrow the range. if max_index - min_index == 1: _save_fixed_range(testcase_id, min_revision, max_revision, testcase_file_path) return # Occasionally, we get into this bad state. It seems to be related to test # cases with flaky stacks, but the exact cause is unknown. if max_index - min_index < 1: testcase = data_handler.get_testcase_by_id(testcase_id) testcase.fixed = 'NA' testcase.open = False message = ('Fixed testing errored out (min and max revisions ' 'are both %d)' % min_revision) _update_completion_metadata(testcase, max_revision, message=message) return # Test the middle revision of our range. middle_index = (min_index + max_index) // 2 middle_revision = revision_list[middle_index] testcase = data_handler.get_testcase_by_id(testcase_id) log_message = 'Testing r%d (current range %d:%d)' % ( middle_revision, min_revision, max_revision) data_handler.update_testcase_comment(testcase, data_types.TaskState.WIP, log_message) try: result = _testcase_reproduces_in_revision(testcase, testcase_file_path, job_type, middle_revision) except errors.BadBuildError: # Skip this revision. del revision_list[middle_index] max_index -= 1 continue if result.is_crash(): min_index = middle_index else: max_index = middle_index _save_current_fixed_range_indices(testcase_id, revision_list[min_index], revision_list[max_index]) # If we've broken out of the loop, we've exceeded the deadline. Recreate the # task to pick up where we left off. testcase = data_handler.get_testcase_by_id(testcase_id) error_message = ('Timed out, current range r%d:r%d' % (revision_list[min_index], revision_list[max_index])) data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, error_message) tasks.add_task('progression', testcase_id, job_type)
def execute_task(testcase_id, job_type): """Run analyze task.""" # Reset redzones. environment.reset_current_memory_tool_options(redzone_size=128) # Unset window location size and position properties so as to use default. environment.set_value('WINDOW_ARG', '') # Locate the testcase associated with the id. testcase = data_handler.get_testcase_by_id(testcase_id) if not testcase: return data_handler.update_testcase_comment(testcase, data_types.TaskState.STARTED) metadata = data_types.TestcaseUploadMetadata.query( data_types.TestcaseUploadMetadata.testcase_id == int( testcase_id)).get() if not metadata: logs.log_error('Testcase %s has no associated upload metadata.' % testcase_id) testcase.key.delete() return is_lsan_enabled = environment.get_value('LSAN') if is_lsan_enabled: # Creates empty local blacklist so all leaks will be visible to uploader. leak_blacklist.create_empty_local_blacklist() # Store the bot name and timestamp in upload metadata. bot_name = environment.get_value('BOT_NAME') metadata.bot_name = bot_name metadata.timestamp = datetime.datetime.utcnow() metadata.put() # Adjust the test timeout, if user has provided one. if metadata.timeout: environment.set_value('TEST_TIMEOUT', metadata.timeout) # Adjust the number of retries, if user has provided one. if metadata.retries is not None: environment.set_value('CRASH_RETRIES', metadata.retries) # Setup testcase and get absolute testcase path. file_list, _, testcase_file_path = setup.setup_testcase(testcase, job_type) if not file_list: return # Set up a custom or regular build based on revision. build_manager.setup_build(testcase.crash_revision) # Check if we have an application path. If not, our build failed # to setup correctly. if not build_manager.check_app_path(): data_handler.update_testcase_comment(testcase, data_types.TaskState.ERROR, 'Build setup failed') if data_handler.is_first_retry_for_task(testcase): build_fail_wait = environment.get_value('FAIL_WAIT') tasks.add_task('analyze', testcase_id, job_type, wait_time=build_fail_wait) else: close_invalid_testcase_and_update_status(testcase, metadata, 'Build setup failed') return # Update initial testcase information. testcase.absolute_path = testcase_file_path testcase.job_type = job_type testcase.binary_flag = utils.is_binary_file(testcase_file_path) testcase.queue = tasks.default_queue() testcase.crash_state = '' # Set initial testcase metadata fields (e.g. build url, etc). data_handler.set_initial_testcase_metadata(testcase) # Update minimized arguments and use ones provided during user upload. if not testcase.minimized_arguments: minimized_arguments = environment.get_value('APP_ARGS') or '' additional_command_line_flags = testcase.get_metadata( 'uploaded_additional_args') if additional_command_line_flags: minimized_arguments += ' %s' % additional_command_line_flags environment.set_value('APP_ARGS', minimized_arguments) testcase.minimized_arguments = minimized_arguments # Update other fields not set at upload time. testcase.crash_revision = environment.get_value('APP_REVISION') data_handler.set_initial_testcase_metadata(testcase) testcase.put() # Initialize some variables. gestures = testcase.gestures http_flag = testcase.http_flag test_timeout = environment.get_value('TEST_TIMEOUT') # Get the crash output. result = testcase_manager.test_for_crash_with_retries(testcase, testcase_file_path, test_timeout, http_flag=http_flag, compare_crash=False) # If we don't get a crash, try enabling http to see if we can get a crash. # Skip engine fuzzer jobs (e.g. libFuzzer, AFL) for which http testcase paths # are not applicable. if (not result.is_crash() and not http_flag and not environment.is_engine_fuzzer_job()): result_with_http = testcase_manager.test_for_crash_with_retries( testcase, testcase_file_path, test_timeout, http_flag=True, compare_crash=False) if result_with_http.is_crash(): logs.log('Testcase needs http flag for crash.') http_flag = True result = result_with_http # Refresh our object. testcase = data_handler.get_testcase_by_id(testcase_id) if not testcase: return # Set application command line with the correct http flag. application_command_line = ( testcase_manager.get_command_line_for_application( testcase_file_path, needs_http=http_flag)) # Get the crash data. crashed = result.is_crash() crash_time = result.get_crash_time() state = result.get_symbolized_data() unsymbolized_crash_stacktrace = result.get_stacktrace(symbolized=False) # Get crash info object with minidump info. Also, re-generate unsymbolized # stacktrace if needed. crash_info, _ = (crash_uploader.get_crash_info_and_stacktrace( application_command_line, state.crash_stacktrace, gestures)) if crash_info: testcase.minidump_keys = crash_info.store_minidump() if not crashed: # Could not reproduce the crash. log_message = ('Testcase didn\'t crash in %d seconds (with retries)' % test_timeout) data_handler.update_testcase_comment(testcase, data_types.TaskState.FINISHED, log_message) # In the general case, we will not attempt to symbolize if we do not detect # a crash. For user uploads, we should symbolize anyway to provide more # information about what might be happening. crash_stacktrace_output = utils.get_crash_stacktrace_output( application_command_line, state.crash_stacktrace, unsymbolized_crash_stacktrace) testcase.crash_stacktrace = data_handler.filter_stacktrace( crash_stacktrace_output) # For an unreproducible testcase, retry once on another bot to confirm # our results and in case this bot is in a bad state which we didn't catch # through our usual means. if data_handler.is_first_retry_for_task(testcase): testcase.status = 'Unreproducible, retrying' testcase.put() tasks.add_task('analyze', testcase_id, job_type) return close_invalid_testcase_and_update_status(testcase, metadata, 'Unreproducible') # A non-reproducing testcase might still impact production branches. # Add the impact task to get that information. task_creation.create_impact_task_if_needed(testcase) return # Update http flag and re-run testcase to store dependencies (for bundled # archives only). testcase.http_flag = http_flag if not store_testcase_dependencies_from_bundled_testcase_archive( metadata, testcase, testcase_file_path): return # Update testcase crash parameters. testcase.crash_type = state.crash_type testcase.crash_address = state.crash_address testcase.crash_state = state.crash_state crash_stacktrace_output = utils.get_crash_stacktrace_output( application_command_line, state.crash_stacktrace, unsymbolized_crash_stacktrace) testcase.crash_stacktrace = data_handler.filter_stacktrace( crash_stacktrace_output) # Try to guess if the bug is security or not. security_flag = crash_analyzer.is_security_issue(state.crash_stacktrace, state.crash_type, state.crash_address) testcase.security_flag = security_flag # If it is, guess the severity. if security_flag: testcase.security_severity = severity_analyzer.get_security_severity( state.crash_type, state.crash_stacktrace, job_type, bool(gestures)) log_message = ('Testcase crashed in %d seconds (r%d)' % (crash_time, testcase.crash_revision)) data_handler.update_testcase_comment(testcase, data_types.TaskState.FINISHED, log_message) # See if we have to ignore this crash. if crash_analyzer.ignore_stacktrace(state.crash_stacktrace): close_invalid_testcase_and_update_status(testcase, metadata, 'Irrelavant') return # Test for reproducibility. one_time_crasher_flag = not testcase_manager.test_for_reproducibility( testcase.fuzzer_name, testcase.actual_fuzzer_name(), testcase_file_path, state.crash_state, security_flag, test_timeout, http_flag, gestures) testcase.one_time_crasher_flag = one_time_crasher_flag # Check to see if this is a duplicate. project_name = data_handler.get_project_name(job_type) existing_testcase = data_handler.find_testcase(project_name, state.crash_type, state.crash_state, security_flag) if existing_testcase: # If the existing test case is unreproducible and we are, replace the # existing test case with this one. if existing_testcase.one_time_crasher_flag and not one_time_crasher_flag: duplicate_testcase = existing_testcase original_testcase = testcase else: duplicate_testcase = testcase original_testcase = existing_testcase metadata.status = 'Duplicate' metadata.duplicate_of = existing_testcase.key.id() duplicate_testcase.status = 'Duplicate' duplicate_testcase.duplicate_of = original_testcase.key.id() duplicate_testcase.put() # Set testcase and metadata status if not set already. if testcase.status != 'Duplicate': testcase.status = 'Processed' metadata.status = 'Confirmed' # Add new leaks to global blacklist to avoid detecting duplicates. # Only add if testcase has a direct leak crash and if it's reproducible. if is_lsan_enabled: leak_blacklist.add_crash_to_global_blacklist_if_needed(testcase) # Update the testcase values. testcase.put() # Update the upload metadata. metadata.security_flag = security_flag metadata.put() # Create tasks to # 1. Minimize testcase (minimize). # 2. Find regression range (regression). # 3. Find testcase impact on production branches (impact). # 4. Check whether testcase is fixed (progression). # 5. Get second stacktrace from another job in case of # one-time crashers (stack). task_creation.create_tasks(testcase)