This makes creating whitelisted runtime functions more permissive on
fuzzers (when --allow-natives-for-fuzzing is passed).
- Runtime functions with too few arguments are replaced with undefined.
- Superfluous arguments are ignored.
This reduces syntax-error rate on fuzzers. Also prevents
dcheck errors when fuzzing debug builds and fuzzers use too many
arguments for runtime functions.
Bug: chromium:1044942
Change-Id: I23b45398421c50bc82d1e8bfdf019f565253db96
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2039352
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66202}
This adds two flags for whitelisting natives on fuzzers:
--allow-natives-for-fuzzing:
Enables a small subset of runtime functions and replaces others with
undefined.
--allow-natives-for-differential-fuzzing
Restricts the allowed runtime functions even further, excluding the
ones that break differential fuzzing.
Bug: chromium:1044942
Change-Id: I890bd4a6ff7c2e483dd74155290a7ace06f85239
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2020773
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66068}
