import tempfile
import shutil
from distutils.spawn import find_executable
+import multiprocessing
verbose = False
creduce_cmd = None
os.chmod(filename, os.stat(filename).st_mode | stat.S_IEXEC)
class Reduce(object):
- def __init__(self, crash_script, file_to_reduce):
+ def __init__(self, crash_script, file_to_reduce, core_number):
crash_script_name, crash_script_ext = os.path.splitext(crash_script)
file_reduce_name, file_reduce_ext = os.path.splitext(file_to_reduce)
self.expected_output = []
self.needs_stack_trace = False
self.creduce_flags = ["--tidy"]
+ self.creduce_flags = ["--n", str(core_number)]
self.read_clang_args(crash_script, file_to_reduce)
self.read_expected_output()
parser.add_argument('--creduce', dest='creduce', type=str,
help="The path to the `creduce` executable. "
"Required if `creduce` is not in PATH environment.")
+ parser.add_argument('--n', dest='core_number', type=int,
+ default=max(4, multiprocessing.cpu_count() / 2),
+ help="Number of cores to use.")
parser.add_argument('-v', '--verbose', action='store_true')
args = parser.parse_args()
llvm_bin = os.path.abspath(args.llvm_bin) if args.llvm_bin else None
creduce_cmd = check_cmd('creduce', None, args.creduce)
clang_cmd = check_cmd('clang', llvm_bin, args.clang)
+ core_number = args.core_number
crash_script = check_file(args.crash_script[0])
file_to_reduce = check_file(args.file_to_reduce[0])
- r = Reduce(crash_script, file_to_reduce)
+ r = Reduce(crash_script, file_to_reduce, core_number)
r.simplify_clang_args()
r.write_interestingness_test()