def main_helper( # pylint: disable=too-many-locals, too-many-branches, too-many-statements;
settings_path: Path,
iteration_seed_override: Optional[int] = None,
fuzzing_tool_pattern: Optional[List[FuzzingTool]] = None,
allow_no_stack_traces: bool = False,
override_sigint: bool = True,
use_amber_vulkan_loader: bool = False,
active_device_names: Optional[List[str]] = None,
update_ignored_crash_signatures_gerrit_cookie: Optional[str] = None,
) -> None:
if not fuzzing_tool_pattern:
fuzzing_tool_pattern = [FuzzingTool.GLSL_FUZZ]
util.update_gcov_environment_variable_if_needed()
if override_sigint:
interrupt_util.override_sigint()
try_get_root_file()
settings = settings_util.read_or_create(settings_path)
binary_manager = binaries_util.get_default_binary_manager(
settings=settings)
temp_dir = Path() / "temp"
# Note: we use "is not None" so that if the user passes an empty Gerrit cookie, we still try to execute this code.
if update_ignored_crash_signatures_gerrit_cookie is not None:
git_tool = util.tool_on_path("git")
downloaded_graphicsfuzz_tests_dir = (
temp_dir / f"graphicsfuzz_cts_tests_{get_random_name()[:8]}")
work_dir = temp_dir / f"graphicsfuzz_cts_run_{get_random_name()[:8]}"
download_cts_gf_tests.download_cts_graphicsfuzz_tests(
git_tool=git_tool,
cookie=update_ignored_crash_signatures_gerrit_cookie,
output_tests_dir=downloaded_graphicsfuzz_tests_dir,
)
download_cts_gf_tests.extract_shaders(
tests_dir=downloaded_graphicsfuzz_tests_dir,
binaries=binary_manager)
with util.file_open_text(work_dir / "results.csv",
"w") as results_out_handle:
run_cts_gf_tests.main_helper(
tests_dir=downloaded_graphicsfuzz_tests_dir,
work_dir=work_dir,
binaries=binary_manager,
settings=settings,
active_devices=devices_util.get_active_devices(
settings.device_list),
results_out_handle=results_out_handle,
updated_settings_output_path=settings_path,
)
return
active_devices = devices_util.get_active_devices(
settings.device_list, active_device_names=active_device_names)
# Add host_preprocessor device from device list if it is missing.
if not active_devices[0].HasField("preprocess"):
for device in settings.device_list.devices:
if device.HasField("preprocess"):
active_devices.insert(0, device)
break
# Add host_preprocessor device (from scratch) if it is still missing.
if not active_devices[0].HasField("preprocess"):
active_devices.insert(
0, Device(name="host_preprocessor", preprocess=DevicePreprocess()))
reports_dir = Path() / "reports"
fuzz_failures_dir = reports_dir / FUZZ_FAILURES_DIR_NAME
references_dir = Path() / REFERENCES_DIR
donors_dir = Path() / DONORS_DIR
spirv_fuzz_shaders_dir = Path() / "spirv_fuzz_shaders"
# Log a warning if there is no tool on the PATH for printing stack traces.
prepended = util.prepend_catchsegv_if_available([], log_warning=True)
if not allow_no_stack_traces and not prepended:
raise AssertionError("Stopping because we cannot get stack traces.")
spirv_fuzz_shaders: List[Path] = []
references: List[Path] = []
if FuzzingTool.SPIRV_FUZZ in fuzzing_tool_pattern:
check_dir_exists(spirv_fuzz_shaders_dir)
spirv_fuzz_shaders = sorted(spirv_fuzz_shaders_dir.rglob("*.json"))
if FuzzingTool.GLSL_FUZZ in fuzzing_tool_pattern:
check_dir_exists(references_dir)
check_dir_exists(donors_dir)
# TODO: make GraphicsFuzz find donors recursively.
references = sorted(references_dir.rglob("*.json"))
# Filter to only include .json files that have at least one shader (.frag, .vert, .comp) file.
references = [
ref for ref in references if shader_job_util.get_related_files(ref)
]
if use_amber_vulkan_loader:
library_path = binary_manager.get_binary_path_by_name(
binaries_util.AMBER_VULKAN_LOADER_NAME).path.parent
util.add_library_paths_to_environ([library_path], os.environ)
fuzzing_tool_index = 0
while True:
interrupt_util.interrupt_if_needed()
# We have to use "is not None" because the seed could be 0.
if iteration_seed_override is not None:
iteration_seed = iteration_seed_override
else:
iteration_seed = secrets.randbits(ITERATION_SEED_BITS)
log(f"Iteration seed: {iteration_seed}")
random.seed(iteration_seed)
staging_name = get_random_name()[:8]
staging_dir = temp_dir / staging_name
try:
util.mkdir_p_new(staging_dir)
except FileExistsError:
if iteration_seed_override is not None:
raise
log(f"Staging directory already exists: {str(staging_dir)}")
log("Starting new iteration.")
continue
# Pseudocode:
# - Create test_dir(s) in staging directory.
# - Run test_dir(s) on all active devices (stop early if appropriate).
# - For each test failure on each device, copy the test to reports_dir, adding the device and crash signature.
# - Reduce each report (on the given device).
# - Produce a summary for each report.
fuzzing_tool = fuzzing_tool_pattern[fuzzing_tool_index]
fuzzing_tool_index = (fuzzing_tool_index +
1) % len(fuzzing_tool_pattern)
if fuzzing_tool == FuzzingTool.SPIRV_FUZZ:
fuzz_spirv_test.fuzz_spirv(
staging_dir,
reports_dir,
fuzz_failures_dir,
active_devices,
spirv_fuzz_shaders,
settings,
binary_manager,
)
elif fuzzing_tool == FuzzingTool.GLSL_FUZZ:
fuzz_glsl_test.fuzz_glsl(
staging_dir,
reports_dir,
fuzz_failures_dir,
active_devices,
references,
donors_dir,
settings,
binary_manager,
)
else:
raise AssertionError(f"Unknown fuzzing tool: {fuzzing_tool}")
if iteration_seed_override is not None:
log("Stopping due to iteration_seed")
break
shutil.rmtree(staging_dir)
def main_helper( # pylint: disable=too-many-locals, too-many-branches, too-many-statements;
settings_path: Path,
iteration_seed_override: Optional[int],
use_spirv_fuzz: bool,
force_no_stack_traces: bool,
) -> None:
util.update_gcov_environment_variable_if_needed()
try:
artifact_util.artifact_path_get_root()
except FileNotFoundError:
log(
"Could not find ROOT file (in the current directory or above) to mark where binaries should be stored. "
"Creating a ROOT file in the current directory."
)
util.file_write_text(Path(artifact_util.ARTIFACT_ROOT_FILE_NAME), "")
settings = settings_util.read_or_create(settings_path)
active_devices = devices_util.get_active_devices(settings.device_list)
reports_dir = Path() / "reports"
fuzz_failures_dir = reports_dir / FUZZ_FAILURES_DIR_NAME
temp_dir = Path() / "temp"
references_dir = Path() / "references"
donors_dir = Path() / "donors"
spirv_fuzz_shaders_dir = Path() / "spirv_fuzz_shaders"
# Log a warning if there is no tool on the PATH for printing stack traces.
prepended = util.prepend_catchsegv_if_available([], log_warning=True)
if not force_no_stack_traces and not prepended:
raise AssertionError("Stopping because we cannot get stack traces.")
spirv_fuzz_shaders: List[Path] = []
references: List[Path] = []
if use_spirv_fuzz:
check_dir_exists(spirv_fuzz_shaders_dir)
spirv_fuzz_shaders = sorted(spirv_fuzz_shaders_dir.rglob("*.json"))
else:
check_dir_exists(references_dir)
check_dir_exists(donors_dir)
# TODO: make GraphicsFuzz find donors recursively.
references = sorted(references_dir.rglob("*.json"))
# Filter to only include .json files that have at least one shader (.frag, .vert, .comp) file.
references = [
ref for ref in references if shader_job_util.get_related_files(ref)
]
binary_manager = binaries_util.get_default_binary_manager(
settings=settings
).get_child_binary_manager(list(settings.custom_binaries), prepend=True)
while True:
# We have to use "is not None" because the seed could be 0.
if iteration_seed_override is not None:
iteration_seed = iteration_seed_override
else:
iteration_seed = secrets.randbits(ITERATION_SEED_BITS)
log(f"Iteration seed: {iteration_seed}")
random.seed(iteration_seed)
staging_name = get_random_name()[:8]
staging_dir = temp_dir / staging_name
try:
util.mkdir_p_new(staging_dir)
except FileExistsError:
if iteration_seed_override is not None:
raise
log(f"Staging directory already exists: {str(staging_dir)}")
log(f"Starting new iteration.")
continue
# Pseudocode:
# - Create test_dir(s) in staging directory.
# - Run test_dir(s) on all active devices (stop early if appropriate).
# - For each test failure on each device, copy the test to reports_dir, adding the device and crash signature.
# - Reduce each report (on the given device).
# - Produce a summary for each report.
if use_spirv_fuzz:
fuzz_spirv_test.fuzz_spirv(
staging_dir,
reports_dir,
fuzz_failures_dir,
active_devices,
spirv_fuzz_shaders,
settings,
binary_manager,
)
else:
fuzz_glsl_test.fuzz_glsl(
staging_dir,
reports_dir,
fuzz_failures_dir,
active_devices,
references,
donors_dir,
settings,
binary_manager,
)
shutil.rmtree(staging_dir)
if iteration_seed_override is not None:
log("Stopping due to iteration_seed")
break