aboutsummaryrefslogtreecommitdiffstats
path: root/tools/memory-model/scripts/parseargs.sh
blob: 859e1d581e0511ff01fd1a5f6170a80d02c5fbbd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0+
#
# the corresponding .litmus.out file, and does not judge the result.
#
# . scripts/parseargs.sh
#
# Include into other Linux kernel tools/memory-model scripts.
#
# Copyright IBM Corporation, 2018
#
# Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

T=/tmp/parseargs.sh.$$
mkdir $T

# Initialize one parameter: initparam name default
initparam () {
	echo if test -z '"$'$1'"' > $T/s
	echo then >> $T/s
	echo	$1='"'$2'"' >> $T/s
	echo	export $1 >> $T/s
	echo fi >> $T/s
	echo $1_DEF='$'$1  >> $T/s
	. $T/s
}

initparam LKMM_DESTDIR "."
initparam LKMM_HERD_OPTIONS "-conf linux-kernel.cfg"
initparam LKMM_JOBS `getconf _NPROCESSORS_ONLN`
initparam LKMM_PROCS "3"
initparam LKMM_TIMEOUT "1m"

scriptname=$0

usagehelp () {
	echo "Usage $scriptname [ arguments ]"
	echo "      --destdir path (place for .litmus.out, default by .litmus)"
	echo "      --herdopts -conf linux-kernel.cfg ..."
	echo "      --jobs N (number of jobs, default one per CPU)"
	echo "      --procs N (litmus tests with at most this many processes)"
	echo "      --timeout N (herd7 timeout (e.g., 10s, 1m, 2hr, 1d, '')"
	echo "Defaults: --destdir '$LKMM_DESTDIR_DEF' --herdopts '$LKMM_HERD_OPTIONS_DEF' --jobs '$LKMM_JOBS_DEF' --procs '$LKMM_PROCS_DEF' --timeout '$LKMM_TIMEOUT_DEF'"
	exit 1
}

usage () {
	usagehelp 1>&2
}

# checkarg --argname argtype $# arg mustmatch cannotmatch
checkarg () {
	if test $3 -le 1
	then
		echo $1 needs argument $2 matching \"$5\"
		usage
	fi
	if echo "$4" | grep -q -e "$5"
	then
		:
	else
		echo $1 $2 \"$4\" must match \"$5\"
		usage
	fi
	if echo "$4" | grep -q -e "$6"
	then
		echo $1 $2 \"$4\" must not match \"$6\"
		usage
	fi
}

while test $# -gt 0
do
	case "$1" in
	--destdir)
		checkarg --destdir "(path to directory)" "$#" "$2" '.\+' '^--'
		LKMM_DESTDIR="$2"
		mkdir $LKMM_DESTDIR > /dev/null 2>&1
		if ! test -e "$LKMM_DESTDIR"
		then
			echo "Cannot create directory --destdir '$LKMM_DESTDIR'"
			usage
		fi
		if test -d "$LKMM_DESTDIR" -a -w "$LKMM_DESTDIR" -a -x "$LKMM_DESTDIR"
		then
			:
		else
			echo "Directory --destdir '$LKMM_DESTDIR' insufficient permissions to create files"
			usage
		fi
		shift
		;;
	--herdopts|--herdopt)
		checkarg --destdir "(herd options)" "$#" "$2" '.*' '^--'
		LKMM_HERD_OPTIONS="$2"
		shift
		;;
	-j[1-9]*)
		njobs="`echo $1 | sed -e 's/^-j//'`"
		trailchars="`echo $njobs | sed -e 's/[0-9]\+\(.*\)$/\1/'`"
		if test -n "$trailchars"
		then
			echo $1 trailing characters "'$trailchars'"
			usagehelp
		fi
		LKMM_JOBS="`echo $njobs | sed -e 's/^\([0-9]\+\).*$/\1/'`"
		;;
	--jobs|--job|-j)
		checkarg --jobs "(number)" "$#" "$2" '^[1-9][0-9]\+$' '^--'
		LKMM_JOBS="$2"
		shift
		;;
	--procs|--proc)
		checkarg --procs "(number)" "$#" "$2" '^[0-9]\+$' '^--'
		LKMM_PROCS="$2"
		shift
		;;
	--timeout)
		checkarg --timeout "(timeout spec)" "$#" "$2" '^\([0-9]\+[smhd]\?\|\)$' '^--'
		LKMM_TIMEOUT="$2"
		shift
		;;
	*)
		echo Unknown argument $1
		usage
		;;
	esac
	shift
done
if test -z "$LKMM_TIMEOUT"
then
	LKMM_TIMEOUT_CMD=""; export LKMM_TIMEOUT_CMD
else
	LKMM_TIMEOUT_CMD="timeout $LKMM_TIMEOUT"; export LKMM_TIMEOUT_CMD
fi
rm -rf $T