1#!/bin/sh
  2# perf diff tests
  3# SPDX-License-Identifier: GPL-2.0
  4
  5set -e
  6
  7err=0
  8perfdata1=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
  9perfdata2=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
 10perfdata3=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
 11testprog="perf test -w thloop"
 12
 13shelldir=$(dirname "$0")
 14# shellcheck source=lib/perf_has_symbol.sh
 15. "${shelldir}"/lib/perf_has_symbol.sh
 16
 17testsym="test_loop"
 18
 19skip_test_missing_symbol ${testsym}
 20
 21cleanup() {
 22  rm -rf "${perfdata1}"
 23  rm -rf "${perfdata1}".old
 24  rm -rf "${perfdata2}"
 25  rm -rf "${perfdata2}".old
 26  rm -rf "${perfdata3}"
 27  rm -rf "${perfdata3}".old
 28
 29  trap - EXIT TERM INT
 30}
 31
 32trap_cleanup() {
 33  cleanup
 34  exit 1
 35}
 36trap trap_cleanup EXIT TERM INT
 37
 38make_data() {
 39  file="$1"
 40  if ! perf record -o "${file}" ${testprog} 2> /dev/null
 41  then
 42    echo "Workload record [Failed record]"
 43    echo 1
 44    return
 45  fi
 46  if ! perf report -i "${file}" -q | grep -q "${testsym}"
 47  then
 48    echo "Workload record [Failed missing output]"
 49    echo 1
 50    return
 51  fi
 52  echo 0
 53}
 54
 55test_two_files() {
 56  echo "Basic two file diff test"
 57  err=$(make_data "${perfdata1}")
 58  if [ $err != 0 ]
 59  then
 60    return
 61  fi
 62  err=$(make_data "${perfdata2}")
 63  if [ $err != 0 ]
 64  then
 65    return
 66  fi
 67
 68  if ! perf diff "${perfdata1}" "${perfdata2}" | grep -q "${testsym}"
 69  then
 70    echo "Basic two file diff test [Failed diff]"
 71    err=1
 72    return
 73  fi
 74  echo "Basic two file diff test [Success]"
 75}
 76
 77test_three_files() {
 78  echo "Basic three file diff test"
 79  err=$(make_data "${perfdata1}")
 80  if [ $err != 0 ]
 81  then
 82    return
 83  fi
 84  err=$(make_data "${perfdata2}")
 85  if [ $err != 0 ]
 86  then
 87    return
 88  fi
 89  err=$(make_data "${perfdata3}")
 90  if [ $err != 0 ]
 91  then
 92    return
 93  fi
 94
 95  if ! perf diff "${perfdata1}" "${perfdata2}" "${perfdata3}" | grep -q "${testsym}"
 96  then
 97    echo "Basic three file diff test [Failed diff]"
 98    err=1
 99    return
100  fi
101  echo "Basic three file diff test [Success]"
102}
103
104test_two_files
105test_three_files
106
107cleanup
108exit $err