diff options
Diffstat (limited to 'projects/libra')
| -rw-r--r-- | projects/libra/build.sh | 63 |
1 files changed, 49 insertions, 14 deletions
diff --git a/projects/libra/build.sh b/projects/libra/build.sh index ea07ced6..c778169e 100644 --- a/projects/libra/build.sh +++ b/projects/libra/build.sh @@ -17,23 +17,33 @@ # Note: This project creates Rust fuzz targets exclusively -# make OSS-Fuzz work with Rust -export CUSTOM_LIBFUZZER_PATH="$LIB_FUZZING_ENGINE_DEPRECATED" -export CUSTOM_LIBFUZZER_STD_CXX=c++ +# recipe: +# ------- +# 1. we list all the fuzzers and save to a file fuzzer_list +# 2. we build the corpus for each fuzzer +# 3. we build all the fuzzers + +# reset flags of OSS-Fuzz export CFLAGS="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION" export CXXFLAGS_EXTRA="-stdlib=libc++" export CXXFLAGS="$CFLAGS $CXXFLAGS_EXTRA" -# RUSTC_BOOTSTRAP: to get some nightly features like ASAN -export RUSTC_BOOTSTRAP=1 - -# +# correct workdir cd $SRC/libra/testsuite/libra-fuzzer -# list fuzzers +# fetch all dependencies (needed for patching rocksdb) +cargo fetch + +# patch rocksdb to not link libc++ statically +sed -i "s/link_cpp(&mut build)/build.cpp_link_stdlib(None)/" \ + /rust/git/checkouts/rust-rocksdb-a9a28e74c6ead8ef/72e45c3/librocksdb_sys/build.rs +# so now we need to link libc++ at the end +export RUSTFLAGS="-C link-arg=-L/usr/local/lib -C link-arg=-lc++" + +# 1. list fuzzers cargo run --bin libra-fuzzer list --no-desc > fuzzer_list -# build corpus and move to $OUT +# 2. build corpus and move to $OUT cat fuzzer_list | while read -r line do cargo run --bin libra-fuzzer generate -n 128 $line @@ -41,11 +51,36 @@ do rm -r fuzz/corpus/$line done -# build fuzzers -# --cfg fuzzing -> used to change code logic -# -Cdebug-assertions -> to get debug_assert in rust -# other flags -> taken from cargo fuzz -export RUSTFLAGS="--cfg fuzzing -Cdebug-assertions -Cpasses=sancov -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-trace-compares -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-trace-geps -Cllvm-args=-sanitizer-coverage-prune-blocks=0 -Cllvm-args=-sanitizer-coverage-pc-table -Clink-dead-code -Cllvm-args=-sanitizer-coverage-stack-depth -Zsanitizer=address -Ccodegen-units=1" +# rust libfuzzer flags (https://github.com/rust-fuzz/libfuzzer/blob/master/build.rs#L12) +export CUSTOM_LIBFUZZER_PATH="$LIB_FUZZING_ENGINE_DEPRECATED" +export CUSTOM_LIBFUZZER_STD_CXX=c++ +# export CUSTOM_LIBFUZZER_STD_CXX=none + +# RUSTC_BOOTSTRAP: to get some nightly features like ASAN +export RUSTC_BOOTSTRAP=1 + +# export fuzzing flags +RUSTFLAGS="$RUSTFLAGS --cfg fuzzing" # used to change code logic +RUSTFLAGS="$RUSTFLAGS -Cdebug-assertions" # to get debug_assert in rust +RUSTFLAGS="$RUSTFLAGS -Zsanitizer=address" # address sanitizer (ASAN) + +RUSTFLAGS="$RUSTFLAGS -Cdebuginfo=1" +RUSTFLAGS="$RUSTFLAGS -Cforce-frame-pointers" + +RUSTFLAGS="$RUSTFLAGS -Cpasses=sancov" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-level=4" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-trace-compares" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-inline-8bit-counters" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-trace-geps" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-prune-blocks=0" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-pc-table" +RUSTFLAGS="$RUSTFLAGS -Clink-dead-code" +RUSTFLAGS="$RUSTFLAGS -Cllvm-args=-sanitizer-coverage-stack-depth" +RUSTFLAGS="$RUSTFLAGS -Ccodegen-units=1" + +export RUSTFLAGS + +# 3. build all the fuzzers! cat fuzzer_list | while read -r line do # build |