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# Variables for sanitizer handling
required_variables_sanitizer(){
if [[ -z ${SANITIZER_BUILD:-} ]]; then
return 0
fi
echo "SANITIZER_BUILD"
echo "SANITIZER_LLVM_VERSION"
}
artifact_dependency_sanitizer=("")
required_variables_check_sanitizer() {
# Allow empty sanitizer builds
if [[ -z ${SANITIZER_BUILD:-} ]]; then
SANITIZER_BUILD=""
return 0
fi
local sanitizers
IFS=":" read -r -a sanitizers <<< "${SANITIZER_BUILD}"
for sanitizer in "${sanitizers[@]}"; do
[[ -z "${sanitizer}" ]] && continue
[[ "${sanitizer}" == "address" ]] && continue
[[ "${sanitizer}" == "memory" ]] && continue
[[ "${sanitizer}" == "undefined" ]] && continue
echo "Unknown sanitizer: $sanitizer"
exit 1
done
}
setup_variables_sanitizer() {
if [[ -z "${SANITIZER_BUILD:-}" ]]; then
SANITIZERS=("")
SANITIZER_SUFFIX=""
return 0
fi
[[ -n ${SANITIZER_INIT+X} ]] && return 0
SANITIZER_INIT=1
# Remove ":" separator
local sanitizers
local e
local sorted_sanitizers
IFS=":" read -r -a sanitizers <<< "${SANITIZER_BUILD}"
sorted_sanitizers=( $( for e in "${sanitizers[@]}"; do echo "$e"; done | sort) )
SANITIZERS=("${sorted_sanitizers[@]}")
# Set variables used by clients.
## Build variables
[[ -z ${SANITIZER_CXX_FLAGS+x} ]] && SANITIZER_CXX_FLAGS=("")
[[ -z ${SANITIZER_C_FLAGS+x} ]] && SANITIZER_C_FLAGS=("")
[[ -z ${SANITIZER_LD_FLAGS+x} ]] && SANITIZER_LD_FLAGS=("")
# Docker_suffix
SANITIZER_SUFFIX=""
local flags
for sanitizer in "${sorted_sanitizers[@]}"; do
[[ -z "${sanitizer}" ]] && continue
# AddressSanitizer
if [ "${sanitizer}" == "address" ]; then
echo "Using ASan"
flags=( "-fsanitize=address" "-fno-omit-frame-pointer" "-g")
SANITIZER_CXX_FLAGS+=("${flags[@]}")
SANITIZER_C_FLAGS+=("${flags[@]}")
SANITIZER_LD_FLAGS+=("${flags[@]}")
SANITIZER_SUFFIX+="_asan"
continue
fi
# Undefined Behaviour Sanitizer
if [ "${sanitizer}" == "undefined" ]; then
echo "Using UBSan"
# Allow to recover from any undefined behaviour
flags=("-fsanitize=undefined" "-fno-omit-frame-pointer" "-g" "-fsanitize-recover=signed-integer-overflow,alignment,vptr")
SANITIZER_CXX_FLAGS+=("${flags[@]}")
SANITIZER_C_FLAGS+=("${flags[@]}")
SANITIZER_LD_FLAGS+=("${flags[@]}")
SANITIZER_SUFFIX+="_ubsan"
continue
fi
# Memory Sanitizer
if [ "${sanitizer}" == "memory" ]; then
echo "Using Memory Sanitizer"
# Generate full sanitizer ignore file.
cat "${DIR}/sanitizer/"*.txt > "${BASE}/sanitizer_ignore.txt"
flags=("-fsanitize=memory" "-fno-omit-frame-pointer" "-g" "-fsanitize-memory-track-origins" "-fsanitize-ignorelist=${BASE}/sanitizer_ignore.txt")
if [[ -n "${LLVM_VERSION:-}" ]]; then
# Workaround as we have to pull in MemSan-instrumented libcxx
local LLVM_BUILD_LIBCXX="${BASE}/llvm-${LLVM_VERSION}0-install_NO_D_A_memsan-libcxx"
if [[ -d "${LLVM_BUILD_LIBCXX}" ]]; then
SANITIZER_CXX_FLAGS+=(
"-nostdinc++"
"-isystem ${LLVM_BUILD_LIBCXX}/include"
"-isystem ${LLVM_BUILD_LIBCXX}/include/c++/v1"
)
SANITIZER_LD_FLAGS+=(
"-lc++abi"
"-Wl,--rpath=${LLVM_BUILD_LIBCXX}/lib"
"-L${LLVM_BUILD_LIBCXX}/lib"
"-stdlib=libc++"
)
fi
fi
SANITIZER_CXX_FLAGS+=("${flags[@]}")
SANITIZER_C_FLAGS+=("${flags[@]}")
SANITIZER_LD_FLAGS+=("${flags[@]}")
SANITIZER_SUFFIX+="_memsan"
continue
fi
echo "Unknown sanitizer: $sanitizer"
exit 1
done
}
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