fmt/test/fuzzing
Victor Zverovich 79f1506fe3 Add base.h
2024-01-09 19:36:12 -08:00
..
.gitignore add oss-fuzz support 2019-06-30 06:10:07 -07:00
build.sh
chrono-duration.cc
chrono-timepoint.cc add fuzzers for chrono timepoint and localtime,gmtime (#2469) 2021-08-29 06:58:23 -07:00
CMakeLists.txt
float.cc Detect overflow on large precision 2021-12-05 07:26:58 -08:00
fuzzer-common.h Add base.h 2024-01-09 19:36:12 -08:00
main.cc
named-arg.cc
one-arg.cc Remove deprecated APIs 2022-05-21 12:20:31 -07:00
README.md
two-args.cc Remove deprecated APIs 2022-05-21 12:20:31 -07:00

Running the fuzzers locally

There is a helper script to build the fuzzers, which has only been tested on Debian and Ubuntu linux so far. There should be no problems fuzzing on Windows (using clang>=8) or on Mac, but the script will probably not work out of the box.

Something along

mkdir build
cd build
export CXX=clang++
export CXXFLAGS="-fsanitize=fuzzer-no-link -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION= -g"
cmake .. -DFMT_SAFE_DURATION_CAST=On -DFMT_FUZZ=On -DFMT_FUZZ_LINKMAIN=Off -DFMT_FUZZ_LDFLAGS="-fsanitize=fuzzer"
cmake --build .

should work to build the fuzzers for all platforms which clang supports.

Execute a fuzzer with for instance

cd build
export UBSAN_OPTIONS=halt_on_error=1
mkdir out_chrono
bin/fuzzer_chrono_duration out_chrono