tools/testing/selftests/arm64/fp/fpsimd-stress

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0-only
   3 # Copyright (C) 2015-2019 ARM Limited.
   4 # Original author: Dave Martin <Dave.Martin@arm.com>
   5
   6 set -ue
   7
   8 NR_CPUS=`nproc`
   9
  10 pids=
  11 logs=
  12
  13 cleanup () {
  14         trap - INT TERM CHLD
  15         set +e
  16
  17         if [ -n "$pids" ]; then
  18                 kill $pids
  19                 wait $pids
  20                 pids=
  21         fi
  22
  23         if [ -n "$logs" ]; then
  24                 cat $logs
  25                 rm $logs
  26                 logs=
  27         fi
  28 }
  29
  30 interrupt () {
  31         cleanup
  32         exit 0
  33 }
  34
  35 child_died () {
  36         cleanup
  37         exit 1
  38 }
  39
  40 trap interrupt INT TERM EXIT
  41 trap child_died CHLD
  42
  43 for x in `seq 0 $((NR_CPUS * 4))`; do
  44         log=`mktemp`
  45         logs=$logs\ $log
  46         ./fpsimd-test >$log &
  47         pids=$pids\ $!
  48 done
  49
  50 # Wait for all child processes to be created:
  51 sleep 10
  52
  53 while :; do
  54         kill -USR1 $pids
  55 done &
  56 pids=$pids\ $!
  57
  58 wait
  59
  60 exit 1