63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
"""The libfuzzertest.TestCase for C++ libfuzzer tests."""
|
|
|
|
import datetime
|
|
import os
|
|
from typing import Optional
|
|
|
|
from buildscripts.resmokelib import core, logging, utils
|
|
from buildscripts.resmokelib.testing.testcases import interface
|
|
|
|
|
|
class CPPLibfuzzerTestCase(interface.ProcessTestCase):
|
|
"""A C++ libfuzzer test to execute."""
|
|
|
|
REGISTERED_NAME = "cpp_libfuzzer_test"
|
|
DEFAULT_TIMEOUT = datetime.timedelta(hours=1)
|
|
|
|
def __init__(
|
|
self,
|
|
logger: logging.Logger,
|
|
program_executables: list[str],
|
|
program_options: Optional[dict] = None,
|
|
corpus_directory_stem="corpora",
|
|
):
|
|
"""Initialize the CPPLibfuzzerTestCase with the executable to run."""
|
|
|
|
assert len(program_executables) == 1
|
|
interface.ProcessTestCase.__init__(
|
|
self, logger, "C++ libfuzzer test", program_executables[0]
|
|
)
|
|
|
|
self.program_executable = program_executables[0]
|
|
self.program_options = utils.default_if_none(program_options, {}).copy()
|
|
|
|
# disable writing of profraw during fuzzing unless specifically asked for
|
|
self.program_options.setdefault("env_vars", {})
|
|
self.program_options["env_vars"].setdefault("LLVM_PROFILE_FILE", "/dev/null")
|
|
|
|
self.corpus_directory = corpus_directory_stem
|
|
self.seed_directory = os.path.join(
|
|
self.corpus_directory, self.short_name(), "LLVMFuzzer.TestOneInput", "seeds"
|
|
)
|
|
|
|
old_corpus_dir = f"{corpus_directory_stem}/corpus-{self.short_name()}"
|
|
if os.path.exists(old_corpus_dir):
|
|
os.makedirs(self.seed_directory, exist_ok=True)
|
|
os.rename(old_corpus_dir, self.seed_directory)
|
|
|
|
if not os.path.exists(self.seed_directory):
|
|
self.seed_directory = ""
|
|
|
|
os.makedirs(self.corpus_directory, exist_ok=True)
|
|
|
|
interface.append_process_tracking_options(self.program_options, self._id)
|
|
|
|
def _make_process(self):
|
|
default_args = [
|
|
self.program_executable,
|
|
"--fuzz_for=1h",
|
|
f"--corpus_database={self.corpus_directory}",
|
|
f"--llvm_fuzzer_wrapper_corpus_dir={self.seed_directory}",
|
|
]
|
|
return core.programs.make_process(self.logger, default_args, **self.program_options)
|