[bug] failed: multiple definition of `__muloti4'

[mimoo]

I can't compile my fuzzers these days anymore, and I'm banging my head on the problem.

To repro:

git clone https://github.com/google/oss-fuzz.git
python infra/helper.py shell libra
compile

This will compile with clang 10 on ubuntu xenial:

Step 8/10 : RUN clang -v
 ---> Running in ef911c30fa25
clang version 10.0.0 (https://github.com/llvm/llvm-project.git e84b7a5fe230e42b8e6fe451369874a773bf1867)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.0.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
Removing intermediate container ef911c30fa25
 ---> 76978329e057
Step 9/10 : RUN cat /etc/os-release
 ---> Running in 1e87f0c344d7
NAME="Ubuntu"
VERSION="16.04.6 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.6 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

I'm getting this error:

Step #4: error: linking with `cc` failed: exit code: 1

// ...

Step #4:   = note: /rust/rustup/toolchains/1.42.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0b278345638bce90.rlib(compiler_builtins-0b278345638bce90.compiler_builtins.c31qu5fm-cgu.0.rcgu.o): In function `__muloti4':
Step #4:           /cargo/registry/src/github.heygears.com-1ecc6299db9ec823/compiler_builtins-0.1.25/src/macros.rs:253: multiple definition of `__muloti4'
Step #4:           /tmp/rustcjXWpoV/liblibrocksdb_sys-eab822076e906c87.rlib(int128_builtins.cpp.o):int128_builtins.cpp:(.text.__muloti4+0x0): first defined here
Step #4:           collect2: error: ld returned 1 exit status
Step #4:           
Step #4: 
Step #4: error: aborting due to previous error
Step #4: 
Step #4: error: could not compile `libra_fuzzer_fuzz`.
Step #4: 
Step #4: To learn more, run the command again with --verbose.
Step #4: ********************************************************************************
Step #4: Failed to build.
Step #4: To reproduce, run:
Step #4: python infra/helper.py build_image libra
Step #4: python infra/helper.py build_fuzzers --sanitizer address --engine libfuzzer --architecture x86_64 libra
Step #4: ********************************************************************************

It looks like there is a similar error in this thread but I'm not sure what to do of it: https://reviews.llvm.org/D49828

[nagisa]

Please provide a more minimal reproducer. Preferably something that does not involve pulling down the entirety of the google’s oss fuzz project, invokes cargo directly, etc. The more external variables are removed from the equation here, the better.