diff options
Diffstat (limited to 'infra/cifuzz/stack_parser.py')
| -rw-r--r-- | infra/cifuzz/stack_parser.py | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/infra/cifuzz/stack_parser.py b/infra/cifuzz/stack_parser.py index 0077caae9..69c44bc2e 100644 --- a/infra/cifuzz/stack_parser.py +++ b/infra/cifuzz/stack_parser.py @@ -13,6 +13,8 @@ # limitations under the License. """Module for parsing stacks from fuzz targets.""" +import logging + # From clusterfuzz: src/python/crash_analysis/crash_analyzer.py # Used to get the beginning of the stacktrace. STACKTRACE_TOOL_MARKERS = [ @@ -51,25 +53,33 @@ def parse_fuzzer_output(fuzzer_output, parsed_output_file_path): parsed_output_file_path: The location to store the parsed output. """ # Get index of key file points. + begin_stack = None for marker in STACKTRACE_TOOL_MARKERS: marker_index = fuzzer_output.find(marker) - if marker_index: + if marker_index != -1: begin_stack = marker_index break - end_stack = -1 + if begin_stack is None: + logging.error( + b'Could not find a begin stack marker (%s) in fuzzer output:\n%s', + STACKTRACE_TOOL_MARKERS, fuzzer_output) + return + + end_stack = None for marker in STACKTRACE_END_MARKERS: marker_index = fuzzer_output.find(marker) - if marker_index: + if marker_index != -1: end_stack = marker_index + len(marker) break - if begin_stack is None or end_stack is None: + if end_stack is None: + logging.error( + b'Could not find an end stack marker (%s) in fuzzer output:\n%s', + STACKTRACE_END_MARKERS, fuzzer_output) return summary_str = fuzzer_output[begin_stack:end_stack] - if not summary_str: - return # Write sections of fuzzer output to specific files. with open(parsed_output_file_path, 'ab') as summary_handle: |