Unable to compile SpiderMonkey with afl-clang-fast

[L R]

I used afl-clang-fast to compile SpiderMonkey, but it said "No instrumentation detected when fuzzing.

Environment details:

compiler: clang-11

OS: ubuntu 20.04

AFL version: 2.57b

After setting CC=afl-clang-fast and CXX=afl-clang-fast++, the afl-clang-fast++ is indeed used.

The failure of the afl fuzzing is shown here.

Please give me some suggests. Thanks.

[L R]

Moreover, when afl-clang and afl-clang++ are used to compile, the target will crash in the function __afl_setup_first.

[Nikolay Shaplov]

В письме от воскресенье, 20 августа 2023 г. 09:37:48 MSK пользователь L R
написал:

I have no idea what is your problem. But the first thing I will try it this
case, I will try to use AFL++ instead of AFL 2.57b.

If this problem is still exist, I would create an issue in AFL++'s github.
If you give step-by-step guide how to reproduce it (starting from git clone of
the SpiderMonkey code) van Hauser will most probably try it, and might give
you some feedback, or even fix a bug in AFL++

--
Nikolay Shaplov aka Nataraj
Fuzzing Engineer at Postgres Professional
Matrix IM: @dhyan:nataraj.su

[L R]

Hi, I used AFL++ and everything works. Thanks.