History

Chris Thrasher 69ffedfe52 Use `target_compile_features` to specify C++ standard requirement		2022-11-26 11:03:17 -08:00
..
.gitignore	add oss-fuzz support	2019-06-30 06:10:07 -07:00
build.sh	set clang in one place	2021-08-22 17:52:45 -07:00
chrono-duration.cc	clang format	2021-08-22 17:52:45 -07:00
chrono-timepoint.cc	add fuzzers for chrono timepoint and localtime,gmtime (#2469 )	2021-08-29 06:58:23 -07:00
CMakeLists.txt	Use `target_compile_features` to specify C++ standard requirement	2022-11-26 11:03:17 -08:00
float.cc	Detect overflow on large precision	2021-12-05 07:26:58 -08:00
fuzzer-common.h	fix UB in fuzzer common (memcpy on nullptr)	2021-08-22 17:52:45 -07:00
main.cc	Cleanup fuzzing	2020-10-13 09:08:04 -07:00
named-arg.cc	Refactor presentation types	2021-09-06 13:32:33 -07:00
one-arg.cc	Remove deprecated APIs	2022-05-21 12:20:31 -07:00
README.md	Cleanup	2020-10-11 10:13:42 -07:00
two-args.cc	Remove deprecated APIs	2022-05-21 12:20:31 -07:00

README.md

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