#!/bin/sh

#
# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0
#

set -e

if [ -z "$TMP_DIR" ] || [ -z "$OUT_DIR" ] || [ -z "$TEST" ]; then
    exit 0
fi

if command -v "perf" &> /dev/null; then
    echo "folding perf events"

    perf script \
      --input $TMP_DIR/$TEST.$PS.perf \
      2>/dev/null \
      > $OUT_DIR/$TEST.$PS.script

    cat \
      $OUT_DIR/$TEST.$PS.script \
      | inferno-collapse-perf \
      > $OUT_DIR/$TEST.$PS.stacks

    exit 0
fi

# TODO implement dtrace