1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Usage: configinit.sh config-spec-file results-dir 5# 6# Create a .config file from the spec file. Run from the kernel source tree. 7# Exits with 0 if all went well, with 1 if all went well but the config 8# did not match, and some other number for other failures. 9# 10# The first argument is the .config specification file, which contains 11# desired settings, for example, "CONFIG_NO_HZ=y". For best results, 12# this should be a full pathname. 13# 14# Copyright (C) IBM Corporation, 2013 15# 16# Authors: Paul E. McKenney <paulmck@linux.ibm.com> 17 18T="`mktemp -d ${TMPDIR-/tmp}/configinit.sh.XXXXXX`" 19trap 'rm -rf $T' 0 20 21# Capture config spec file. 22 23c=$1 24resdir=$2 25 26sed -e 's/^\(CONFIG[0-9A-Z_]*\)=.*$/grep -v "^# \1" |/' < $c > $T/u.sh 27sed -e 's/^\(CONFIG[0-9A-Z_]*=\).*$/grep -v \1 |/' < $c >> $T/u.sh 28grep '^grep' < $T/u.sh > $T/upd.sh 29echo "cat - $c" >> $T/upd.sh 30if test -z "$TORTURE_TRUST_MAKE" 31then 32 make clean > $resdir/Make.clean 2>&1 33fi 34make $TORTURE_KMAKE_ARG $TORTURE_DEFCONFIG > $resdir/Make.defconfig.out 2>&1 35mv .config .config.sav 36sh $T/upd.sh < .config.sav > .config 37cp .config .config.new 38yes '' | make $TORTURE_KMAKE_ARG oldconfig > $resdir/Make.oldconfig.out 2> $resdir/Make.oldconfig.err 39 40# verify new config matches specification. 41configcheck.sh .config $c 42 43exit 0 44