diff options
| author | Arthur She <arthur.she@linaro.org> | 2014-09-15 17:14:06 -0700 |
|---|---|---|
| committer | Arthur She <arthur.she@linaro.org> | 2014-09-15 17:14:06 -0700 |
| commit | 8d5e98a61f52513749e459c98bcafd060d88b79c (patch) | |
| tree | 117c21aa0b42865a321b078ddb71c410506c51c9 /rcutorture/bin/configNR_CPUS.sh | |
| parent | 57621049dccbdd6a74d943ca81ddedaadac467fd (diff) | |
Diffstat (limited to 'rcutorture/bin/configNR_CPUS.sh')
| -rwxr-xr-x | rcutorture/bin/configNR_CPUS.sh | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/rcutorture/bin/configNR_CPUS.sh b/rcutorture/bin/configNR_CPUS.sh new file mode 100755 index 0000000..43540f1 --- /dev/null +++ b/rcutorture/bin/configNR_CPUS.sh @@ -0,0 +1,45 @@ +#!/bin/bash +# +# Extract the number of CPUs expected from the specified Kconfig-file +# fragment by checking CONFIG_SMP and CONFIG_NR_CPUS. If the specified +# file gives no clue, base the number on the number of idle CPUs on +# the system. +# +# Usage: configNR_CPUS.sh config-frag +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, you can access it online at +# http://www.gnu.org/licenses/gpl-2.0.html. +# +# Copyright (C) IBM Corporation, 2013 +# +# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com> + +cf=$1 +if test ! -r $cf +then + echo Unreadable config fragment $cf 1>&2 + exit -1 +fi +if grep -q '^CONFIG_SMP=n$' $cf +then + echo 1 + exit 0 +fi +if grep -q '^CONFIG_NR_CPUS=' $cf +then + grep '^CONFIG_NR_CPUS=' $cf | + sed -e 's/^CONFIG_NR_CPUS=\([0-9]*\).*$/\1/' + exit 0 +fi +cpus2use.sh |