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#!/usr/bin/env bash
# This file is used by build.sh to setup sanitizers.
sanitizer_flags=""
sanitizers=()
# This tracks what sanitizers are enabled so they don't get enabled twice. This
# means that doing things that enable the same sanitizer twice (such as enabling
# both --asan and --fuzz) is order-dependent: only the first is used.
enable_sanitizer()
{
local san="$1"
for i in "${sanitizers[@]}"; do
[ "$san" = "$i" ] && return
done
sanitizers+=("$san")
if [ -z "$sanitizer_flags" ]; then
gyp_params+=(-Dno_zdefs=1)
fi
local cflags=$(python $cwd/coreconf/sanitizers.py "$@")
sanitizer_flags="$sanitizer_flags $cflags"
}
enable_sancov()
{
local clang_version=$($CC --version | grep -oE '([0-9]{1,}\.)+[0-9]{1,}')
if [[ ${clang_version:0:1} -lt 4 && ${clang_version:0:1} -eq 3 && ${clang_version:2:1} -lt 9 ]]; then
echo "Need at least clang-3.9 (better 4.0) for sancov." 1>&2
exit 1
fi
local sancov
if [ -n "$1" ]; then
sancov="$1"
elif [ "${clang_version:0:3}" = "3.9" ]; then
sancov=edge,indirect-calls,8bit-counters
else
sancov=trace-pc-guard,trace-cmp
fi
enable_sanitizer sancov "$sancov"
}
enable_sourcecov()
{
enable_sanitizer sourcecov
}
enable_ubsan()
{
local ubsan
if [ -n "$1" ]; then
ubsan="$1"
else
ubsan=undefined,local-bounds
fi
enable_sanitizer ubsan "$ubsan"
}
# Not strictly a sanitizer, but the pattern fits
scanbuild=()
enable_scanbuild()
{
[ "${#scanbuild[@]}" -gt 0 ] && return
scanbuild=(scan-build)
if [ -n "$1" ]; then
scanbuild+=(-o "$1")
fi
# pass on CC and CCC to scanbuild
if [ -n "$CC" ]; then
scanbuild+=(--use-cc="$CC")
fi
if [ -n "$CCC" ]; then
scanbuild+=(--use-c++="$CCC")
fi
}
run_scanbuild()
{
"${scanbuild[@]}" "$@"
}