706 lines
15 KiB
Bash
706 lines
15 KiB
Bash
#! /bin/sh
|
|
#
|
|
# This script is used to configure BusyBox.
|
|
#
|
|
# It was inspired by the challenge in the original Configure script
|
|
# to ``do something better'', combined with the actual need to ``do
|
|
# something better'' because the old configure script wasn't flexible
|
|
# enough.
|
|
#
|
|
# Raymond Chen was the original author of Configure.
|
|
# Michael Elizabeth Chastain (mec@shout.net) is the current maintainer.
|
|
#
|
|
# 050793 - use IFS='@' to get around a bug in a pre-version of bash-1.13
|
|
# with an empty IFS.
|
|
#
|
|
# 030995 (storner@osiris.ping.dk) - added support for tri-state answers,
|
|
# for selecting modules to compile.
|
|
#
|
|
# 180995 Bernhard Kaindl (bkaindl@ping.at) - added dummy functions for
|
|
# use with a config.in modified for make menuconfig.
|
|
#
|
|
# 301195 (boldt@math.ucsb.edu) - added help text support
|
|
#
|
|
# 281295 Paul Gortmaker - make tri_state functions collapse to boolean
|
|
# if module support is not enabled.
|
|
#
|
|
# 010296 Aaron Ucko (ucko@vax1.rockhurst.edu) - fix int and hex to accept
|
|
# arbitrary ranges
|
|
#
|
|
# 150296 Dick Streefland (dicks@tasking.nl) - report new configuration
|
|
# items and ask for a value even when doing a "make oldconfig"
|
|
#
|
|
# 200396 Tom Dyas (tdyas@eden.rutgers.edu) - when the module option is
|
|
# chosen for an item, define the macro <option_name>_MODULE
|
|
#
|
|
# 090397 Axel Boldt (boldt@math.ucsb.edu) - avoid ? and + in regular
|
|
# expressions for GNU expr since version 1.15 and up use \? and \+.
|
|
#
|
|
# 300397 Phil Blundell (pjb27@cam.ac.uk) - added support for min/max
|
|
# arguments to "int", allow dep_tristate to take a list of dependencies
|
|
# rather than just one.
|
|
#
|
|
# 090398 Axel Boldt (boldt@math.ucsb.edu) - allow for empty lines in help
|
|
# texts.
|
|
#
|
|
# 102598 Michael Chastain (mec@shout.net) - put temporary files in
|
|
# current directory, not in /tmp.
|
|
#
|
|
# 24 January 1999, Michael Elizabeth Chastain, <mec@shout.net>
|
|
# - Improve the exit message (Jeff Ronne).
|
|
#
|
|
# 7 October 2000, Ghozlane Toumi, <gtoumi@messel.emse.fr>
|
|
# added switches for "random" , "all yes" and "all modules"
|
|
#
|
|
|
|
#
|
|
# Make sure we're really running bash.
|
|
#
|
|
# I would really have preferred to write this script in a language with
|
|
# better string handling, but alas, bash is the only scripting language
|
|
# that I can be reasonable sure everybody has on their linux machine.
|
|
#
|
|
[ -z "$BASH" ] && { echo "Configure requires bash" 1>&2; exit 1; }
|
|
|
|
# Disable filename globbing once and for all.
|
|
# Enable function cacheing.
|
|
set -f -h
|
|
|
|
#
|
|
# Dummy functions for use with a config.in modified for menuconf
|
|
#
|
|
function mainmenu_option () {
|
|
:
|
|
}
|
|
function mainmenu_name () {
|
|
:
|
|
}
|
|
function endmenu () {
|
|
:
|
|
}
|
|
|
|
#
|
|
# returns a random number between 1 and $1
|
|
#
|
|
function rnd () {
|
|
rnd=$[ $RANDOM % $1 + 1 ]
|
|
}
|
|
|
|
#
|
|
# randomly chose a number in a config list (LIST_CONFIG_NAME)
|
|
# or in a range ( MIN_CONFIG_NAME MAX_CONFIG_NAME )
|
|
# ONLY if there is no forced default (and we are in an "auto" mode)
|
|
# we are limited by the range of values taken by "$RANDOM"
|
|
#
|
|
# rndval CONFIG_NAME
|
|
#
|
|
|
|
function rndval () {
|
|
[ "$AUTO" != "yes" -o -n "$old" ] && return
|
|
def_list=$(eval echo "\${LIST_$1}")
|
|
def_min=$(eval echo "\${MIN_$1}")
|
|
def_max=$(eval echo "\${MAX_$1}")
|
|
|
|
if [ -n "$def_list" ]; then
|
|
set -- $(echo $def_list | sed 's/,/ /g')
|
|
rnd $#
|
|
while [ $rnd -le $# ] ; do
|
|
def=$1
|
|
shift
|
|
done
|
|
return
|
|
fi
|
|
if [ -n "$def_min" -a -n "$def_max" ]; then
|
|
rnd $[ $def_max - $def_min ]
|
|
def=$[ $def_min + $rnd ]
|
|
fi
|
|
}
|
|
|
|
#
|
|
# help prints the corresponding help text from Configure.help to stdout
|
|
#
|
|
# help variable
|
|
#
|
|
function help () {
|
|
if [ -f docs/Configure.help ]
|
|
then
|
|
#first escape regexp special characters in the argument:
|
|
var=$(echo "$1"|sed 's/[][\/.^$*]/\\&/g')
|
|
#now pick out the right help text:
|
|
text=$(sed -n "/^$var[ ]*\$/,\${
|
|
/^$var[ ]*\$/c\\
|
|
${var}:\\
|
|
|
|
/^#/b
|
|
/^[^ ]/q
|
|
/<file:\\([^>]*\\)>/s//\\1/g
|
|
p
|
|
}" docs/Configure.help)
|
|
if [ -z "$text" ]
|
|
then
|
|
echo; echo " Sorry, no help available for this option yet.";echo
|
|
else
|
|
(echo; echo "$text") | ${PAGER:-more}
|
|
fi
|
|
else
|
|
echo;
|
|
echo " Can't access the file docs/Configure.help which"
|
|
echo " should contain the help texts."
|
|
echo
|
|
fi
|
|
}
|
|
|
|
|
|
#
|
|
# readln reads a line into $ans.
|
|
#
|
|
# readln prompt default oldval
|
|
#
|
|
function readln () {
|
|
if [ "$AUTO" = "yes" ]; then
|
|
echo -n "$1"
|
|
ans=$2
|
|
echo $ans
|
|
elif [ "$DEFAULT" = "-d" -a -n "$3" ]; then
|
|
echo "$1"
|
|
ans=$2
|
|
else
|
|
echo -n "$1"
|
|
[ -z "$3" ] && echo -n "(NEW) "
|
|
IFS='@' read ans || exit 1
|
|
[ -z "$ans" ] && ans=$2
|
|
fi
|
|
}
|
|
|
|
#
|
|
# comment does some pretty-printing
|
|
#
|
|
# comment 'xxx'
|
|
#
|
|
function comment () {
|
|
echo "*"; echo "* $1" ; echo "*"
|
|
(echo "" ; echo "#"; echo "# $1" ; echo "#") >>$CONFIG
|
|
(echo "" ; echo "/*"; echo " * $1" ; echo " */") >>$CONFIG_H
|
|
}
|
|
|
|
#
|
|
# define_bool sets the value of a boolean argument
|
|
#
|
|
# define_bool define value
|
|
#
|
|
function define_bool () {
|
|
define_tristate $1 $2
|
|
}
|
|
|
|
function define_tristate () {
|
|
case "$2" in
|
|
"y")
|
|
echo "$1=y" >>$CONFIG
|
|
echo "#define $1 1" >>$CONFIG_H
|
|
;;
|
|
|
|
"m")
|
|
echo "$1=m" >>$CONFIG
|
|
echo "#undef $1" >>$CONFIG_H
|
|
echo "#define $1_MODULE 1" >>$CONFIG_H
|
|
;;
|
|
|
|
"n")
|
|
echo "# $1 is not set" >>$CONFIG
|
|
echo "#undef $1" >>$CONFIG_H
|
|
;;
|
|
esac
|
|
eval "$1=$2"
|
|
}
|
|
|
|
#
|
|
# bool processes a boolean argument
|
|
#
|
|
# bool question define
|
|
#
|
|
function bool () {
|
|
old=$(eval echo "\${$2}")
|
|
def=${old:-'n'}
|
|
if [ "$AUTO" = "yes" -a -z "$old" ]; then
|
|
if [ "$RND" = "-r" ]; then
|
|
rnd 2
|
|
case $rnd in
|
|
"1") def="y" ;;
|
|
"2") def="n" ;;
|
|
esac
|
|
else
|
|
def=$DEF_ANS;
|
|
fi
|
|
fi
|
|
case "$def" in
|
|
"y" | "m") defprompt="Y/n/?"
|
|
def="y"
|
|
;;
|
|
"n") defprompt="N/y/?"
|
|
;;
|
|
esac
|
|
while :; do
|
|
readln "$1 ($2) [$defprompt] " "$def" "$old"
|
|
case "$ans" in
|
|
[yY] | [yY]es ) define_bool "$2" "y"
|
|
break;;
|
|
[nN] | [nN]o ) define_bool "$2" "n"
|
|
break;;
|
|
* ) help "$2"
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
#
|
|
# tristate processes a tristate argument
|
|
#
|
|
# tristate question define
|
|
#
|
|
function tristate () {
|
|
if [ "$CONFIG_MODULES" != "y" ]; then
|
|
bool "$1" "$2"
|
|
else
|
|
old=$(eval echo "\${$2}")
|
|
def=${old:-'n'}
|
|
if [ "$AUTO" = "yes" -a -z "$old" ]; then
|
|
if [ "$RND" = "-r" ]; then
|
|
rnd 3
|
|
case $rnd in
|
|
"1") def="y" ;;
|
|
"2") def="n" ;;
|
|
"3") def="m" ;;
|
|
esac
|
|
else
|
|
def=$DEF_ANS
|
|
fi
|
|
fi
|
|
case "$def" in
|
|
"y") defprompt="Y/m/n/?"
|
|
;;
|
|
"m") defprompt="M/n/y/?"
|
|
;;
|
|
"n") defprompt="N/y/m/?"
|
|
;;
|
|
esac
|
|
while :; do
|
|
readln "$1 ($2) [$defprompt] " "$def" "$old"
|
|
case "$ans" in
|
|
[yY] | [yY]es ) define_tristate "$2" "y"
|
|
break ;;
|
|
[nN] | [nN]o ) define_tristate "$2" "n"
|
|
break ;;
|
|
[mM] ) define_tristate "$2" "m"
|
|
break ;;
|
|
* ) help "$2"
|
|
;;
|
|
esac
|
|
done
|
|
fi
|
|
}
|
|
|
|
#
|
|
# dep_tristate processes a tristate argument that depends upon
|
|
# another option or options. If any of the options we depend upon is a
|
|
# module, then the only allowable options are M or N. If all are Y, then
|
|
# this is a normal tristate. This is used in cases where modules
|
|
# are nested, and one module requires the presence of something
|
|
# else in the kernel.
|
|
#
|
|
# dep_tristate question define default ...
|
|
#
|
|
function dep_tristate () {
|
|
old=$(eval echo "\${$2}")
|
|
def=${old:-'n'}
|
|
ques=$1
|
|
var=$2
|
|
need_module=0
|
|
shift 2
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
n)
|
|
define_tristate "$var" "n"
|
|
return
|
|
;;
|
|
m)
|
|
need_module=1
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
if [ $need_module = 1 ]; then
|
|
if [ "$CONFIG_MODULES" = "y" ]; then
|
|
if [ "$AUTO" = "yes" -a -z "$old" ]; then
|
|
if [ "$RND" = "-r" ]; then
|
|
rnd 2
|
|
case $rnd in
|
|
"1") def="m" ;;
|
|
"2") def="n" ;;
|
|
esac
|
|
else
|
|
def=$DEF_ANS
|
|
fi
|
|
fi
|
|
case "$def" in
|
|
"y" | "m") defprompt="M/n/?"
|
|
def="m"
|
|
;;
|
|
"n") defprompt="N/m/?"
|
|
;;
|
|
esac
|
|
while :; do
|
|
readln "$ques ($var) [$defprompt] " "$def" "$old"
|
|
case "$ans" in
|
|
[nN] | [nN]o ) define_tristate "$var" "n"
|
|
break ;;
|
|
[mM] ) define_tristate "$var" "m"
|
|
break ;;
|
|
[yY] | [yY]es ) echo
|
|
echo " This answer is not allowed, because it is not consistent with"
|
|
echo " your other choices."
|
|
echo " This driver depends on another one which you chose to compile"
|
|
echo " as a module. This means that you can either compile this one"
|
|
echo " as a module as well (with M) or leave it out altogether (N)."
|
|
echo
|
|
;;
|
|
* ) help "$var"
|
|
;;
|
|
esac
|
|
done
|
|
fi
|
|
else
|
|
tristate "$ques" "$var"
|
|
fi
|
|
}
|
|
|
|
function dep_bool () {
|
|
ques=$1
|
|
var=$2
|
|
shift 2
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
m | n)
|
|
define_bool "$var" "n"
|
|
return
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
bool "$ques" "$var"
|
|
}
|
|
|
|
function dep_mbool () {
|
|
ques=$1
|
|
var=$2
|
|
shift 2
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
n)
|
|
define_bool "$var" "n"
|
|
return
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
bool "$ques" "$var"
|
|
}
|
|
|
|
#
|
|
# define_int sets the value of a integer argument
|
|
#
|
|
# define_int define value
|
|
#
|
|
function define_int () {
|
|
echo "$1=$2" >>$CONFIG
|
|
echo "#define $1 ($2)" >>$CONFIG_H
|
|
eval "$1=$2"
|
|
}
|
|
|
|
#
|
|
# int processes an integer argument with optional limits
|
|
#
|
|
# int question define default [min max]
|
|
#
|
|
function int () {
|
|
old=$(eval echo "\${$2}")
|
|
def=${old:-$3}
|
|
if [ $# -gt 3 ]; then
|
|
min=$4
|
|
else
|
|
min=-10000000 # !!
|
|
fi
|
|
if [ $# -gt 4 ]; then
|
|
max=$5
|
|
else
|
|
max=10000000 # !!
|
|
fi
|
|
rndval $2
|
|
while :; do
|
|
readln "$1 ($2) [$def] " "$def" "$old"
|
|
if expr \( \( $ans + 0 \) \>= $min \) \& \( $ans \<= $max \) >/dev/null 2>&1 ; then
|
|
define_int "$2" "$ans"
|
|
break
|
|
else
|
|
help "$2"
|
|
fi
|
|
done
|
|
}
|
|
|
|
#
|
|
# define_hex sets the value of a hexadecimal argument
|
|
#
|
|
# define_hex define value
|
|
#
|
|
function define_hex () {
|
|
echo "$1=$2" >>$CONFIG
|
|
echo "#define $1 0x${2#*[x,X]}" >>$CONFIG_H
|
|
eval "$1=$2"
|
|
}
|
|
|
|
#
|
|
# hex processes an hexadecimal argument
|
|
#
|
|
# hex question define default
|
|
#
|
|
function hex () {
|
|
old=$(eval echo "\${$2}")
|
|
def=${old:-$3}
|
|
def=${def#*[x,X]}
|
|
rndval $2
|
|
while :; do
|
|
readln "$1 ($2) [$def] " "$def" "$old"
|
|
ans=${ans#*[x,X]}
|
|
if expr "$ans" : '[0-9a-fA-F][0-9a-fA-F]*$' > /dev/null; then
|
|
define_hex "$2" "$ans"
|
|
break
|
|
else
|
|
help "$2"
|
|
fi
|
|
done
|
|
}
|
|
|
|
#
|
|
# define_string sets the value of a string argument
|
|
#
|
|
# define_string define value
|
|
#
|
|
function define_string () {
|
|
echo "$1=\"$2\"" >>$CONFIG
|
|
echo "#define $1 \"$2\"" >>$CONFIG_H
|
|
eval "$1=\"$2\""
|
|
}
|
|
|
|
#
|
|
# string processes a string argument
|
|
#
|
|
# string question define default
|
|
#
|
|
function string () {
|
|
old=$(eval echo "\${$2}")
|
|
def=${old:-$3}
|
|
while :; do
|
|
if [ "$old" = "?" ]; then
|
|
readln "$1 ($2) [$def] " "$def" ""
|
|
else
|
|
readln "$1 ($2) [$def] " "$def" "$old"
|
|
fi
|
|
if [ "$ans" = "?" ]; then
|
|
help "$2"
|
|
else
|
|
break
|
|
fi
|
|
done
|
|
define_string "$2" "$ans"
|
|
}
|
|
#
|
|
# choice processes a choice list (1-out-of-n)
|
|
#
|
|
# choice question choice-list default
|
|
#
|
|
# The choice list has a syntax of:
|
|
# NAME WHITESPACE VALUE { WHITESPACE NAME WHITESPACE VALUE }
|
|
# The user may enter any unique prefix of one of the NAMEs and
|
|
# choice will define VALUE as if it were a boolean option.
|
|
# VALUE must be in all uppercase. Normally, VALUE is of the
|
|
# form CONFIG_<something>. Thus, if the user selects <something>,
|
|
# the CPP symbol CONFIG_<something> will be defined and the
|
|
# shell variable CONFIG_<something> will be set to "y".
|
|
#
|
|
function choice () {
|
|
question="$1"
|
|
choices="$2"
|
|
old=
|
|
def=$3
|
|
|
|
# determine default answer:
|
|
names=""
|
|
set -- $choices
|
|
firstvar=$2
|
|
while [ -n "$2" ]; do
|
|
if [ -n "$names" ]; then
|
|
names="$names, $1"
|
|
else
|
|
names="$1"
|
|
fi
|
|
if [ "$(eval echo \"\${$2}\")" = "y" ]; then
|
|
old=$1
|
|
def=$1
|
|
fi
|
|
shift; shift
|
|
done
|
|
|
|
if [ "$RND" = "-r" -a -z "$old" ] ; then
|
|
set -- $choices
|
|
rnd $#
|
|
while [ $rnd -le $# ] ; do
|
|
def=$1
|
|
shift ; shift
|
|
done
|
|
fi
|
|
|
|
val=""
|
|
while [ -z "$val" ]; do
|
|
ambg=n
|
|
readln "$question ($names) [$def] " "$def" "$old"
|
|
ans=$(echo $ans | tr a-z A-Z)
|
|
set -- $choices
|
|
while [ -n "$1" ]; do
|
|
name=$(echo $1 | tr a-z A-Z)
|
|
case "$name" in
|
|
"$ans"* | */"$ans"* )
|
|
case "$name" in
|
|
"$ans" | */"$ans"/* | \
|
|
"$ans"/* | */"$ans" )
|
|
val="$2"
|
|
break # exact match
|
|
;;
|
|
esac
|
|
if [ -n "$val" ]; then
|
|
echo;echo \
|
|
" Sorry, \"$ans\" is ambiguous; please enter a longer string."
|
|
echo
|
|
val=""
|
|
ambg=y
|
|
break
|
|
else
|
|
val="$2"
|
|
fi;;
|
|
esac
|
|
shift; shift
|
|
done
|
|
if [ "$val" = "" -a "$ambg" = "n" ]; then
|
|
help "$firstvar"
|
|
fi
|
|
done
|
|
set -- $choices
|
|
while [ -n "$2" ]; do
|
|
if [ "$2" = "$val" ]; then
|
|
echo " defined $val"
|
|
define_bool "$2" "y"
|
|
else
|
|
define_bool "$2" "n"
|
|
fi
|
|
shift; shift
|
|
done
|
|
}
|
|
|
|
CONFIG=.tmpconfig
|
|
CONFIG_H=.tmpconfig.h
|
|
FORCE_DEFAULT=.force_default
|
|
trap "rm -f $CONFIG $CONFIG_H ; exit 1" 1 2
|
|
|
|
#
|
|
# Make sure we start out with a clean slate.
|
|
#
|
|
echo "#" > $CONFIG
|
|
echo "# Automatically generated make config: don't edit" >> $CONFIG
|
|
echo "#" >> $CONFIG
|
|
|
|
echo "/*" > $CONFIG_H
|
|
echo " * Automatically generated C config: don't edit" >> $CONFIG_H
|
|
echo " */" >> $CONFIG_H
|
|
echo "#define AUTOCONF_INCLUDED" >> $CONFIG_H
|
|
|
|
DEFAULT=""
|
|
if [ "$1" = "-d" ] ; then
|
|
DEFAULT="-d"
|
|
shift
|
|
fi
|
|
|
|
RND=""
|
|
DEF_ANS=""
|
|
AUTO=""
|
|
case "$1" in
|
|
-r) RND="-r" ; AUTO="yes" ; shift ;;
|
|
-y) DEF_ANS="y" ; AUTO="yes" ; shift ;;
|
|
-m) DEF_ANS="m" ; AUTO="yes" ; shift ;;
|
|
-n) DEF_ANS="n" ; AUTO="yes" ; shift ;;
|
|
esac
|
|
|
|
CONFIG_IN=./config.in
|
|
if [ "$1" != "" ] ; then
|
|
CONFIG_IN=$1
|
|
fi
|
|
|
|
DEFAULTS=sysdeps/$TARGET_OS/defconfig
|
|
if [ -f .config ]; then
|
|
DEFAULTS=.config
|
|
fi
|
|
|
|
if [ "$AUTO" != "yes" ]; then
|
|
if [ -f $DEFAULTS ]; then
|
|
echo "#"
|
|
echo "# Using defaults found in" $DEFAULTS
|
|
echo "#"
|
|
. $DEFAULTS
|
|
sed -e 's/# \(CONFIG_[^ ]*\) is not.*/\1=n/' <$DEFAULTS >.config-is-not.$$
|
|
. .config-is-not.$$
|
|
rm .config-is-not.$$
|
|
else
|
|
echo "#"
|
|
echo "# No defaults found"
|
|
echo "#"
|
|
fi
|
|
else
|
|
if [ -f $FORCE_DEFAULT ]; then
|
|
echo "#"
|
|
echo "# Forcing defaults found in $FORCE_DEFAULT"
|
|
echo "#"
|
|
sed -e '
|
|
s/# \(CONFIG_[^ ]*\) is not.*/\1=n/;
|
|
s/# range \(CONFIG_[^ ]*\) \([^ ][^ ]*\) \([^ ][^ ]*\)/MIN_\1=\2; MAX_\1=\3/;
|
|
s/# list \(CONFIG_[^ ]*\) \([^ ][^ ]*\)/LIST_\1=\2/
|
|
' <$FORCE_DEFAULT >.default_val.$$
|
|
. .default_val.$$
|
|
rm .default_val.$$
|
|
else
|
|
echo "#"
|
|
echo "# No defaults found"
|
|
echo "#"
|
|
fi
|
|
fi
|
|
|
|
. $CONFIG_IN
|
|
|
|
rm -f .config.old
|
|
if [ -f .config ]; then
|
|
mv .config .config.old
|
|
fi
|
|
mv .tmpconfig .config
|
|
mv .tmpconfig.h include/config.h
|
|
|
|
echo
|
|
echo "*** End of BusyBox configuration."
|
|
echo "*** Check the top-level Makefile for additional configuration."
|
|
if [ ! -f .hdepend -o "$CONFIG_MODVERSIONS" = "y" ] ; then
|
|
echo "*** Next, you must run 'make dep'."
|
|
else
|
|
echo "*** Next, you may run 'make', or 'make install'."
|
|
fi
|
|
echo
|
|
|
|
exit 0
|