| # Copyright 2018 the V8 project authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import random |
| |
| # List of configuration experiments for correctness fuzzing. |
| # List of <probability>, <1st config name>, <2nd config name>, <2nd d8>. |
| # Probabilities must add up to 100. |
| FOOZZIE_EXPERIMENTS = [ |
| [5, 'ignition', 'ignition_asm', 'd8'], |
| [5, 'ignition', 'trusted', 'd8'], |
| [5, 'ignition', 'trusted_opt', 'd8'], |
| [10, 'ignition', 'slow_path', 'd8'], |
| [5, 'ignition', 'slow_path_opt', 'd8'], |
| [25, 'ignition', 'ignition_turbo', 'd8'], |
| [20, 'ignition', 'ignition_turbo_opt', 'd8'], |
| [5, 'ignition_turbo_opt', 'ignition_turbo_opt', 'clang_x86/d8'], |
| [5, 'ignition_turbo', 'ignition_turbo', 'clang_x86/d8'], |
| [5, 'ignition', 'ignition', 'clang_x86/d8'], |
| [5, 'ignition', 'ignition', 'clang_x64_v8_arm64/d8'], |
| [5, 'ignition', 'ignition', 'clang_x86_v8_arm/d8'], |
| ] |
| |
| class Config(object): |
| def __init__(self, name, rng=None): |
| self.name = name |
| self.rng = rng or random.Random() |
| |
| def choose_foozzie_flags(self): |
| """Randomly chooses a configuration from FOOZZIE_EXPERIMENTS. |
| |
| Returns: List of flags to pass to v8_foozzie.py fuzz harness. |
| """ |
| acc = 0 |
| threshold = self.rng.random() * 100 |
| for prob, first_config, second_config, second_d8 in FOOZZIE_EXPERIMENTS: |
| acc += prob |
| if acc > threshold: |
| return [ |
| '--first-config=' + first_config, |
| '--second-config=' + second_config, |
| '--second-d8=' + second_d8, |
| ] |
| assert False |