1#!/bin/sh
  2# perf record tests
  3# SPDX-License-Identifier: GPL-2.0
  4
  5set -e
  6
  7shelldir=$(dirname "$0")
  8. "${shelldir}"/lib/waiting.sh
  9
 10err=0
 11perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
 12testprog="perf test -w thloop"
 13testsym="test_loop"
 14
 15cleanup() {
 16  rm -rf "${perfdata}"
 17  rm -rf "${perfdata}".old
 18
 19  trap - EXIT TERM INT
 20}
 21
 22trap_cleanup() {
 23  cleanup
 24  exit 1
 25}
 26trap trap_cleanup EXIT TERM INT
 27
 28test_per_thread() {
 29  echo "Basic --per-thread mode test"
 30  if ! perf record -o /dev/null --quiet ${testprog} 2> /dev/null
 31  then
 32    echo "Per-thread record [Skipped event not supported]"
 33    return
 34  fi
 35  if ! perf record --per-thread -o "${perfdata}" ${testprog} 2> /dev/null
 36  then
 37    echo "Per-thread record [Failed record]"
 38    err=1
 39    return
 40  fi
 41  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
 42  then
 43    echo "Per-thread record [Failed missing output]"
 44    err=1
 45    return
 46  fi
 47
 48  # run the test program in background (for 30 seconds)
 49  ${testprog} 30 &
 50  TESTPID=$!
 51
 52  rm -f "${perfdata}"
 53
 54  wait_for_threads ${TESTPID} 2
 55  perf record -p "${TESTPID}" --per-thread -o "${perfdata}" sleep 1 2> /dev/null
 56  kill ${TESTPID}
 57
 58  if [ ! -e "${perfdata}" ]
 59  then
 60    echo "Per-thread record [Failed record -p]"
 61    err=1
 62    return
 63  fi
 64  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
 65  then
 66    echo "Per-thread record [Failed -p missing output]"
 67    err=1
 68    return
 69  fi
 70
 71  echo "Basic --per-thread mode test [Success]"
 72}
 73
 74test_register_capture() {
 75  echo "Register capture test"
 76  if ! perf list | grep -q 'br_inst_retired.near_call'
 77  then
 78    echo "Register capture test [Skipped missing event]"
 79    return
 80  fi
 81  if ! perf record --intr-regs=\? 2>&1 | grep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
 82  then
 83    echo "Register capture test [Skipped missing registers]"
 84    return
 85  fi
 86  if ! perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call \
 87    -c 1000 --per-thread ${testprog} 2> /dev/null \
 88    | perf script -F ip,sym,iregs -i - 2> /dev/null \
 89    | grep -q "DI:"
 90  then
 91    echo "Register capture test [Failed missing output]"
 92    err=1
 93    return
 94  fi
 95  echo "Register capture test [Success]"
 96}
 97
 98test_system_wide() {
 99  echo "Basic --system-wide mode test"
100  if ! perf record -aB --synth=no -o "${perfdata}" ${testprog} 2> /dev/null
101  then
102    echo "System-wide record [Skipped not supported]"
103    return
104  fi
105  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
106  then
107    echo "System-wide record [Failed missing output]"
108    err=1
109    return
110  fi
111  if ! perf record -aB --synth=no -e cpu-clock,cs --threads=cpu \
112    -o "${perfdata}" ${testprog} 2> /dev/null
113  then
114    echo "System-wide record [Failed record --threads option]"
115    err=1
116    return
117  fi
118  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
119  then
120    echo "System-wide record [Failed --threads missing output]"
121    err=1
122    return
123  fi
124  echo "Basic --system-wide mode test [Success]"
125}
126
127test_workload() {
128  echo "Basic target workload test"
129  if ! perf record -o "${perfdata}" ${testprog} 2> /dev/null
130  then
131    echo "Workload record [Failed record]"
132    err=1
133    return
134  fi
135  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
136  then
137    echo "Workload record [Failed missing output]"
138    err=1
139    return
140  fi
141  if ! perf record -e cpu-clock,cs --threads=package \
142    -o "${perfdata}" ${testprog} 2> /dev/null
143  then
144    echo "Workload record [Failed record --threads option]"
145    err=1
146    return
147  fi
148  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
149  then
150    echo "Workload record [Failed --threads missing output]"
151    err=1
152    return
153  fi
154  echo "Basic target workload test [Success]"
155}
156
157test_per_thread
158test_register_capture
159test_system_wide
160test_workload
161
162cleanup
163exit $err