Commit 2cab1598 authored by Michal Berger's avatar Michal Berger Committed by Tomasz Zawadzki
Browse files

test/fuzz/llvm: Add support for sending fuzzer output to syslog 



The long variant of the llvm fuzzer test is producing ~30GB of output
data. Since this may put the underlying system under a severe stress,
depending on how its storage is set up, add an alternative for the
data destination.

Change-Id: I3a4c0efa8df3919642a531bcbe73c5a3daaa97e0
Signed-off-by: default avatarMichal Berger <michal.berger@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/21110


Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: default avatarSebastian Brzezinka <sebastian.brzezinka@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 0cb477dd

test/fuzz/llvm/common.sh

+9 −1
Original line number Diff line number Diff line
@@ -13,6 +13,14 @@ function cleanup() { 
	kill -9 "${pids[@]}" || :

}



function fuzzer_out_handler() {

	if [[ -n $SEND_LLVM_FUZZER_TO_SYSLOG ]]; then

		logger -p user.debug -t LLVM

	else

		cat > "$1"

	fi

}



function get_testn() {

	local fuzz_num=$1

	local mem_size=$2
@@ -44,7 +52,7 @@ function start_llvm_fuzz_all() { 
		# Run max up to $testn tests in parallel ...

		while ((testn_idx = i + ++idx, testn_idx < fuzz_num && idx < testn)); do

			core=$(printf "0x%x" $((0x1 << idx)))

			start_llvm_fuzz $testn_idx $timen $core &> "$output_dir/llvm/llvm_${FUZZER}_${testn_idx}.txt" &

			start_llvm_fuzz $testn_idx $timen $core &> >(fuzzer_out_handler "$output_dir/llvm/llvm_${FUZZER}_${testn_idx}.txt") &

			pids+=($!)

		done

		# ... and now wait for them