diff options
| -rwxr-xr-x | scripts/fuzz_opt.py | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/scripts/fuzz_opt.py b/scripts/fuzz_opt.py index f4c260665..96b142234 100755 --- a/scripts/fuzz_opt.py +++ b/scripts/fuzz_opt.py @@ -255,7 +255,22 @@ def pick_initial_contents(): # the given wasm may not work with the chosen feature opts. for example, if # we pick atomics.wast but want to run with --disable-atomics, then we'd - # error. test the wasm. + # error, so we need to test the wasm. first, make sure it doesn't have a + # features section, as that would enable a feature that we might want to + # be disabled, and our test would not error as we want it to. + if test_name.endswith('.wasm'): + temp_test_name = 'initial.wasm' + try: + run([in_bin('wasm-opt'), test_name, '-all', '--strip-target-features', + '-o', temp_test_name]) + except Exception: + # the input can be invalid if e.g. it is raw data that is used with + # -ttf as fuzzer input + print('(initial contents are not valid wasm, ignoring)') + return + test_name = temp_test_name + + # next, test the wasm. try: run([in_bin('wasm-opt'), test_name] + FEATURE_OPTS, stderr=subprocess.PIPE, |