tools/memory-model/scripts/parseargs.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0+
   3 #
   4 # the corresponding .litmus.out file, and does not judge the result.
   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.vnet.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_JOBS `getconf _NPROCESSORS_ONLN`
  31 initparam LKMM_PROCS "3"
  32 initparam LKMM_TIMEOUT "1m"
  33
  34 scriptname=$0
  35
  36 usagehelp () {
  37         echo "Usage $scriptname [ arguments ]"
  38         echo "      --destdir path (place for .litmus.out, default by .litmus)"
  39         echo "      --herdopts -conf linux-kernel.cfg ..."
  40         echo "      --jobs N (number of jobs, default one per CPU)"
  41         echo "      --procs N (litmus tests with at most this many processes)"
  42         echo "      --timeout N (herd7 timeout (e.g., 10s, 1m, 2hr, 1d, '')"
  43         echo "Defaults: --destdir '$LKMM_DESTDIR_DEF' --herdopts '$LKMM_HERD_OPTIONS_DEF' --jobs '$LKMM_JOBS_DEF' --procs '$LKMM_PROCS_DEF' --timeout '$LKMM_TIMEOUT_DEF'"
  44         exit 1
  45 }
  46
  47 usage () {
  48         usagehelp 1>&2
  49 }
  50
  51 # checkarg --argname argtype $# arg mustmatch cannotmatch
  52 checkarg () {
  53         if test $3 -le 1
  54         then
  55                 echo $1 needs argument $2 matching \"$5\"
  56                 usage
  57         fi
  58         if echo "$4" | grep -q -e "$5"
  59         then
  60                 :
  61         else
  62                 echo $1 $2 \"$4\" must match \"$5\"
  63                 usage
  64         fi
  65         if echo "$4" | grep -q -e "$6"
  66         then
  67                 echo $1 $2 \"$4\" must not match \"$6\"
  68                 usage
  69         fi
  70 }
  71
  72 while test $# -gt 0
  73 do
  74         case "$1" in
  75         --destdir)
  76                 checkarg --destdir "(path to directory)" "$#" "$2" '.\+' '^--'
  77                 LKMM_DESTDIR="$2"
  78                 mkdir $LKMM_DESTDIR > /dev/null 2>&1
  79                 if ! test -e "$LKMM_DESTDIR"
  80                 then
  81                         echo "Cannot create directory --destdir '$LKMM_DESTDIR'"
  82                         usage
  83                 fi
  84                 if test -d "$LKMM_DESTDIR" -a -w "$LKMM_DESTDIR" -a -x "$LKMM_DESTDIR"
  85                 then
  86                         :
  87                 else
  88                         echo "Directory --destdir '$LKMM_DESTDIR' insufficient permissions to create files"
  89                         usage
  90                 fi
  91                 shift
  92                 ;;
  93         --herdopts|--herdopt)
  94                 checkarg --destdir "(herd7 options)" "$#" "$2" '.*' '^--'
  95                 LKMM_HERD_OPTIONS="$2"
  96                 shift
  97                 ;;
  98         -j[1-9]*)
  99                 njobs="`echo $1 | sed -e 's/^-j//'`"
 100                 trailchars="`echo $njobs | sed -e 's/[0-9]\+\(.*\)$/\1/'`"
 101                 if test -n "$trailchars"
 102                 then
 103                         echo $1 trailing characters "'$trailchars'"
 104                         usagehelp
 105                 fi
 106                 LKMM_JOBS="`echo $njobs | sed -e 's/^\([0-9]\+\).*$/\1/'`"
 107                 ;;
 108         --jobs|--job|-j)
 109                 checkarg --jobs "(number)" "$#" "$2" '^[1-9][0-9]\+$' '^--'
 110                 LKMM_JOBS="$2"
 111                 shift
 112                 ;;
 113         --procs|--proc)
 114                 checkarg --procs "(number)" "$#" "$2" '^[0-9]\+$' '^--'
 115                 LKMM_PROCS="$2"
 116                 shift
 117                 ;;
 118         --timeout)
 119                 checkarg --timeout "(timeout spec)" "$#" "$2" '^\([0-9]\+[smhd]\?\|\)$' '^--'
 120                 LKMM_TIMEOUT="$2"
 121                 shift
 122                 ;;
 123         *)
 124                 echo Unknown argument $1
 125                 usage
 126                 ;;
 127         esac
 128         shift
 129 done
 130 if test -z "$LKMM_TIMEOUT"
 131 then
 132         LKMM_TIMEOUT_CMD=""; export LKMM_TIMEOUT_CMD
 133 else
 134         LKMM_TIMEOUT_CMD="timeout $LKMM_TIMEOUT"; export LKMM_TIMEOUT_CMD
 135 fi
 136 rm -rf $T