[foozzie] Use json for flags and experiments

This will allow sharing the configs between Python and JavaScript
based fuzzers.

No-Try: true
Bug: chromium:1044942
Change-Id: Idd47ad31430cfed0629dbb5b9dd5fd2ef8c764f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2051951Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66243}

tools/clusterfuzz/BUILD.gn

@@ -11,6 +11,8 @@ if (v8_correctness_fuzzer) {
       "v8_foozzie.py",
       "v8_foozzie_harness_adjust.js",
       "v8_fuzz_config.py",
+      "v8_fuzz_experiments.json",
+      "v8_fuzz_flags.json",
       "v8_mock.js",
       "v8_mock_archs.js",
       "v8_mock_webassembly.js",

tools/clusterfuzz/v8_fuzz_config.py

@@ -2,62 +2,23 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import json
+import os
 import random
 
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
 # 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 = [
-  [10, 'ignition', 'jitless', 'd8'],
-  [10, 'ignition', 'slow_path', 'd8'],
-  [5, 'ignition', 'slow_path_opt', 'd8'],
-  [25, 'ignition', 'ignition_turbo', 'd8'],
-  [2, 'ignition_no_ic', 'ignition_turbo', 'd8'],
-  [2, 'ignition', 'ignition_turbo_no_ic', 'd8'],
-  [15, 'ignition', 'ignition_turbo_opt', 'd8'],
-  [2, 'ignition_no_ic', 'ignition_turbo_opt', 'd8'],
-  [4, 'ignition_turbo_opt', 'ignition_turbo_opt', 'clang_x64_pointer_compression/d8'],
-  [5, 'ignition_turbo', 'ignition_turbo', 'clang_x64_pointer_compression/d8'],
-  [4, 'ignition_turbo_opt', 'ignition_turbo_opt', 'clang_x86/d8'],
-  [4, 'ignition_turbo', 'ignition_turbo', 'clang_x86/d8'],
-  [4, 'ignition', 'ignition', 'clang_x86/d8'],
-  [4, 'ignition', 'ignition', 'clang_x64_v8_arm64/d8'],
-  [4, 'ignition', 'ignition', 'clang_x86_v8_arm/d8'],
-]
+with open(os.path.join(THIS_DIR, 'v8_fuzz_experiments.json')) as f:
+  FOOZZIE_EXPERIMENTS = json.load(f)
 
 # Additional flag experiments. List of tuples like
 # (<likelihood to use flags in [0,1)>, <flag>).
-ADDITIONAL_FLAGS = [
-  (0.1, '--stress-marking=100'),
-  (0.1, '--stress-scavenge=100'),
-  (0.1, '--stress-compaction-random'),
-  (0.1, '--random-gc-interval=2000'),
-  (0.2, '--noanalyze-environment-liveness'),
-  (0.1, '--stress-delay-tasks'),
-  (0.01, '--thread-pool-size=1'),
-  (0.01, '--thread-pool-size=2'),
-  (0.01, '--thread-pool-size=4'),
-  (0.01, '--thread-pool-size=8'),
-  (0.1, '--interrupt-budget=1000'),
-  (0.25, '--future'),
-  (0.2, '--no-regexp-tier-up'),
-  (0.1, '--regexp-interpret-all'),
-  (0.1, '--regexp-tier-up-ticks=10'),
-  (0.1, '--regexp-tier-up-ticks=100'),
-  (0.1, '--turbo-instruction-scheduling'),
-  (0.1, '--turbo-stress-instruction-scheduling'),
-  (0.1, '--no-enable-sse3'),
-  (0.1, '--no-enable-ssse3'),
-  (0.1, '--no-enable-sse4_1'),
-  (0.1, '--no-enable-sse4_2'),
-  (0.1, '--no-enable-sahf'),
-  (0.1, '--no-enable-avx'),
-  (0.1, '--no-enable-fma3'),
-  (0.1, '--no-enable-bmi1'),
-  (0.1, '--no-enable-bmi2'),
-  (0.1, '--no-enable-lzcnt'),
-  (0.1, '--no-enable-popcnt'),
-]
+with open(os.path.join(THIS_DIR, 'v8_fuzz_flags.json')) as f:
+  ADDITIONAL_FLAGS = json.load(f)
+
 
 class Config(object):
   def __init__(self, name, rng=None):

tools/clusterfuzz/v8_fuzz_experiments.json

+[
+  [10, "ignition", "jitless", "d8"],
+  [10, "ignition", "slow_path", "d8"],
+  [5, "ignition", "slow_path_opt", "d8"],
+  [25, "ignition", "ignition_turbo", "d8"],
+  [2, "ignition_no_ic", "ignition_turbo", "d8"],
+  [2, "ignition", "ignition_turbo_no_ic", "d8"],
+  [15, "ignition", "ignition_turbo_opt", "d8"],
+  [2, "ignition_no_ic", "ignition_turbo_opt", "d8"],
+  [4, "ignition_turbo_opt", "ignition_turbo_opt", "clang_x64_pointer_compression/d8"],
+  [5, "ignition_turbo", "ignition_turbo", "clang_x64_pointer_compression/d8"],
+  [4, "ignition_turbo_opt", "ignition_turbo_opt", "clang_x86/d8"],
+  [4, "ignition_turbo", "ignition_turbo", "clang_x86/d8"],
+  [4, "ignition", "ignition", "clang_x86/d8"],
+  [4, "ignition", "ignition", "clang_x64_v8_arm64/d8"],
+  [4, "ignition", "ignition", "clang_x86_v8_arm/d8"]
+]
\ No newline at end of file

tools/clusterfuzz/v8_fuzz_flags.json

+[
+  [0.1, "--stress-marking=100"],
+  [0.1, "--stress-scavenge=100"],
+  [0.1, "--stress-compaction-random"],
+  [0.1, "--random-gc-interval=2000"],
+  [0.2, "--noanalyze-environment-liveness"],
+  [0.1, "--stress-delay-tasks"],
+  [0.01, "--thread-pool-size=1"],
+  [0.01, "--thread-pool-size=2"],
+  [0.01, "--thread-pool-size=4"],
+  [0.01, "--thread-pool-size=8"],
+  [0.1, "--interrupt-budget=1000"],
+  [0.25, "--future"],
+  [0.2, "--no-regexp-tier-up"],
+  [0.1, "--regexp-interpret-all"],
+  [0.1, "--regexp-tier-up-ticks=10"],
+  [0.1, "--regexp-tier-up-ticks=100"],
+  [0.1, "--turbo-instruction-scheduling"],
+  [0.1, "--turbo-stress-instruction-scheduling"],
+  [0.1, "--no-enable-sse3"],
+  [0.1, "--no-enable-ssse3"],
+  [0.1, "--no-enable-sse4_1"],
+  [0.1, "--no-enable-sse4_2"],
+  [0.1, "--no-enable-sahf"],
+  [0.1, "--no-enable-avx"],
+  [0.1, "--no-enable-fma3"],
+  [0.1, "--no-enable-bmi1"],
+  [0.1, "--no-enable-bmi2"],
+  [0.1, "--no-enable-lzcnt"],
+  [0.1, "--no-enable-popcnt"]
+]
\ No newline at end of file