tools/memory-model/scripts/parseargs.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0+
   3 #
   4 # Parse arguments common to the various scripts.
   5 #
   6 # . scripts/parseargs.sh
   7 #
   8 # Include into other Linux kernel tools/memory-model scripts.
   9 #
  10 # Copyright IBM Corporation, 2018
  11 #
  12 # Author: Paul E. McKenney <paulmck@linux.ibm.com>
  13
  14 T=/tmp/parseargs.sh.$$
  15 mkdir $T
  16
  17 # Initialize one parameter: initparam name default
  18 initparam () {
  19         echo if test -z '"$'$1'"' > $T/s
  20         echo then >> $T/s
  21         echo    $1='"'$2'"' >> $T/s
  22         echo    export $1 >> $T/s
  23         echo fi >> $T/s
  24         echo $1_DEF='$'$1  >> $T/s
  25         . $T/s
  26 }
  27
  28 initparam LKMM_DESTDIR "."
  29 initparam LKMM_HERD_OPTIONS "-conf linux-kernel.cfg"
  30 initparam LKMM_HW_MAP_FILE ""
  31 initparam LKMM_JOBS `getconf _NPROCESSORS_ONLN`
  32 initparam LKMM_PROCS "3"
  33 initparam LKMM_TIMEOUT "1m"
  34
  35 scriptname=$0
  36
  37 usagehelp () {
  38         echo "Usage $scriptname [ arguments ]"
  39         echo "      --destdir path (place for .litmus.out, default by .litmus)"
  40         echo "      --herdopts -conf linux-kernel.cfg ..."
  41         echo "      --hw AArch64"
  42         echo "      --jobs N (number of jobs, default one per CPU)"
  43         echo "      --procs N (litmus tests with at most this many processes)"
  44         echo "      --timeout N (herd7 timeout (e.g., 10s, 1m, 2hr, 1d, '')"
  45         echo "Defaults: --destdir '$LKMM_DESTDIR_DEF' --herdopts '$LKMM_HERD_OPTIONS_DEF' --hw '$LKMM_HW_MAP_FILE' --jobs '$LKMM_JOBS_DEF' --procs '$LKMM_PROCS_DEF' --timeout '$LKMM_TIMEOUT_DEF'"
  46         exit 1
  47 }
  48
  49 usage () {
  50         usagehelp 1>&2
  51 }
  52
  53 # checkarg --argname argtype $# arg mustmatch cannotmatch
  54 checkarg () {
  55         if test $3 -le 1
  56         then
  57                 echo $1 needs argument $2 matching \"$5\"
  58                 usage
  59         fi
  60         if echo "$4" | grep -q -e "$5"
  61         then
  62                 :
  63         else
  64                 echo $1 $2 \"$4\" must match \"$5\"
  65                 usage
  66         fi
  67         if echo "$4" | grep -q -e "$6"
  68         then
  69                 echo $1 $2 \"$4\" must not match \"$6\"
  70                 usage
  71         fi
  72 }
  73
  74 while test $# -gt 0
  75 do
  76         case "$1" in
  77         --destdir)
  78                 checkarg --destdir "(path to directory)" "$#" "$2" '.\+' '^--'
  79                 LKMM_DESTDIR="$2"
  80                 mkdir $LKMM_DESTDIR > /dev/null 2>&1
  81                 if ! test -e "$LKMM_DESTDIR"
  82                 then
  83                         echo "Cannot create directory --destdir '$LKMM_DESTDIR'"
  84                         usage
  85                 fi
  86                 if test -d "$LKMM_DESTDIR" -a -x "$LKMM_DESTDIR"
  87                 then
  88                         :
  89                 else
  90                         echo "Directory --destdir '$LKMM_DESTDIR' insufficient permissions to create files"
  91                         usage
  92                 fi
  93                 shift
  94                 ;;
  95         --herdopts|--herdopt)
  96                 checkarg --destdir "(herd7 options)" "$#" "$2" '.*' '^--'
  97                 LKMM_HERD_OPTIONS="$2"
  98                 shift
  99                 ;;
 100         --hw)
 101                 checkarg --hw "(.map file architecture name)" "$#" "$2" '^[A-Za-z0-9_-]\+' '^--'
 102                 LKMM_HW_MAP_FILE="$2"
 103                 shift
 104                 ;;
 105         -j[1-9]*)
 106                 njobs="`echo $1 | sed -e 's/^-j//'`"
 107                 trailchars="`echo $njobs | sed -e 's/[0-9]\+\(.*\)$/\1/'`"
 108                 if test -n "$trailchars"
 109                 then
 110                         echo $1 trailing characters "'$trailchars'"
 111                         usagehelp
 112                 fi
 113                 LKMM_JOBS="`echo $njobs | sed -e 's/^\([0-9]\+\).*$/\1/'`"
 114                 ;;
 115         --jobs|--job|-j)
 116                 checkarg --jobs "(number)" "$#" "$2" '^[1-9][0-9]*$' '^--'
 117                 LKMM_JOBS="$2"
 118                 shift
 119                 ;;
 120         --procs|--proc)
 121                 checkarg --procs "(number)" "$#" "$2" '^[0-9]\+$' '^--'
 122                 LKMM_PROCS="$2"
 123                 shift
 124                 ;;
 125         --timeout)
 126                 checkarg --timeout "(timeout spec)" "$#" "$2" '^\([0-9]\+[smhd]\?\|\)$' '^--'
 127                 LKMM_TIMEOUT="$2"
 128                 shift
 129                 ;;
 130         --)
 131                 shift
 132                 break
 133                 ;;
 134         *)
 135                 echo Unknown argument $1
 136                 usage
 137                 ;;
 138         esac
 139         shift
 140 done
 141 if test -z "$LKMM_TIMEOUT"
 142 then
 143         LKMM_TIMEOUT_CMD=""; export LKMM_TIMEOUT_CMD
 144 else
 145         LKMM_TIMEOUT_CMD="timeout $LKMM_TIMEOUT"; export LKMM_TIMEOUT_CMD
 146 fi
 147 rm -rf $T