1765546 - Add AFL instrumentation toolchain.

Status: RESOLVED FIXED

(Firefox Build System :: Toolchains, task)

Description

[Jesse Schwartzentruber (:truber)]

AFL++ instrumentation is needed for some fuzzing builds. afl-clang-fast (and ++) wraps clang and injects the necessary instrumentation for fuzzing with AFL++ or Nyx.

afl-clang-fast uses AFL_CC (and AFL_CXX) to point at the underlying compiler, but it will default to checking the compiler that was used to compile itself. In Firefox-CI, the path to clang should be constant between builds, so setting AFL_CC isn't necessary.

Comment 1

[Jesse Schwartzentruber (:truber)]

Attachment: Bug 1765546 - Add AFL++ instrumentation toolchain r?glandium!

Comment 2

[Jesse Schwartzentruber (:truber)]

try: https://treeherder.mozilla.org/jobs?repo=try&revision=12cca87121e51cc1e2227fd2b65ec492726a65ee

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/864fab531300
Add AFL++ instrumentation toolchain r=decoder,firefox-build-system-reviewers,glandium

Comment 4

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/864fab531300