configure

pcmcia source code

#!/bin/sh
#
# Configure 1.208 2002/05/26 17:36:37
#
# The contents of this file are subject to the Mozilla Public License
# Version 1.1 (the "License"); you may not use this file except in
# compliance with the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and
# limitations under the License.
#
# The initial developer of the original code is David A. Hinds
# <[e-mail]>.  Portions created by David A. Hinds
# are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
#
# Alternatively, the contents of this file may be used under the terms
# of the GNU General Public License version 2 (the "GPL"), in which case
# the provisions of the GPL are applicable instead of the above.  If you
# wish to allow the use of your version of this file only under the
# terms of the GPL and not to allow others to use your version of this
# file under the MPL, indicate your decision by deleting the provisions
# above and replace them with the notice and other provisions required
# by the GPL.  If you do not delete the provisions above, a recipient
# may use your version of this file under either the MPL or the GPL.
#
#=======================================================================

fail ()
{
    echo ""
    echo "Configuration failed."
    echo ""
    exit 1
}

# Minimal requirements for sanity
if [ ! -L include/linux/config.h ] ; then
    echo "Ack!  The PCMCIA distribution is incomplete/damaged!"
    echo "    Unpack again -- and try using a Linux filesystem this time."
    fail
fi

if ! make -v >/dev/null ; then
    echo "Ack!  This system does not have a 'make' command!"
    echo "    Install a normal set of Linux development tools and try again."
    fail
fi
if ! gcc -v >/dev/null 2>&1 ; then
    echo "Ack!  Your system does not have 'gcc' installed!"
    echo "    Install a normal set of Linux development tools and try again."
    fail
fi

if [ -r config.out ] ; then
    . ./config.out 2>/dev/null
else
    if [ ! -r config.in ] ; then
	echo "config.in does not exist!"
	fail
    fi
    . ./config.in
fi

#=======================================================================

PROMPT=y

arg () {
    VALUE="`echo X"$2" | sed -e 's/^X--[a-zA-Z_]*=//'`"
    eval $1=\"$VALUE\"
}

usage () {
    echo "usage: $0 [-n|--noprompt] [--kernel=src-dir] [--target=dir]"
    echo "    [--moddir=dir] [--arch={i386|alpha|arm|ppc] [--ucc=path]"
    echo "    [--kcc=path] [--ld=path] [--uflags=flags] [--kflags=flags]"
    echo "    [--debug=flags] [--{no}trust] [--{no}cardbus] [--{no}pnp]"
    echo "    [--{no}apm] [--force] [--current] [--srctree] [--sysv]"
    echo "    [--bsd] [--rcdir=dir] [--extraver=ver]"
    echo ""
    echo "  -n, --noprompt     non-interactive mode: no prompting"
    echo "  --kernel=DIR       use kernel source tree at DIR"
    echo "  --target=DIR       install all files using DIR as root"
    echo "  --moddir=DIR       install modules under DIR"
    echo "  --arch=ARCH        select target architecture for build"
    echo "  --ucc=PATH         specify C compiler for user code"
    echo "  --kcc=PATH         specify C compiler for kernel code"
    echo "  --ld=PATH          use another linker"
    echo "  --uflags=FLAGS     set compiler flags for user-mode tools"
    echo "  --kflags=FLAGS     set compiler flags for kernel modules"
    echo "  --debug=FLAGS      set compiler flags for debugging"
    echo "  --{no}trust        disable or enable trusted user tools"
    echo "  --{no}cardbus      disable or enable CardBus card support"
    echo "  --{no}pnp          disable or enable PnP BIOS support"
    echo "  --{no}apm          disable or enable power management support"
    echo "  --force            ignore presence of 2.4 kernel drivers"
    echo "  --current          read configuration of current kernel"
    echo "  --srctree          read kernel configuration from source tree"
    echo "  --sysv             target has SysV init script layout"
    echo "  --bsd              target uses BSD init scripts"
    echo "  --rcdir=DIR        SysV init scripts are under DIR"
    echo "  --extraver=VER     overrides EXTRAVERSION in kernel Makefile"
    exit 1
}

while [ $# -gt 0 ] ; do
    case "$1" in
    -n|--noprompt)	PROMPT=n		;;
    --kernel=*)		arg LINUX $1 		;;
    --target=*)		arg PREFIX $1		;;
    --moddir=*)		arg MODDIR $1		;;
    --cc=*)		arg UCC "$1"		;;
    --ucc=*)		arg UCC "$1"		;;
    --kcc=*)		arg KCC "$1"		;;
    --ld=*)		arg LD "$1"		;;
    --debug=*)		arg PCDEBUG "$1"	;;
    --kflags=*)		arg KFLAGS "$1"		;;
    --uflags=*)		arg UFLAGS "$1"		;;
    --arch=*)		arg ARCH "$1"		;;
    --trust)		UNSAFE_TOOLS=y		;;
    --notrust)		UNSAFE_TOOLS=n		;;
    --cardbus)		CONFIG_CARDBUS=y	;;
    --nocardbus)	CONFIG_CARDBUS=n	;;
    --pnp)		CONFIG_PNP_BIOS=y	;;
    --nopnp)		CONFIG_PNP_BIOS=n	;;
    --apm)		USE_PM=y		;;
    --noapm)		USE_PM=n		;;
    --force)		FORCE=y			;;
    --current)		CONF_SRC=1		;;
    --srctree)		CONF_SRC=2		;;
    --sysv)		SYSV_INIT=y		;;
    --bsd)		SYSV_INIT=n		;;
    --rcdir=*)		arg RC_DIR "$1"		;;
    --extraver=*)	arg EXTRAVER "$1"	;;
    *)			usage			;;
    esac
    shift
done

#=======================================================================

CONFIG=config.new
CONFIG_H=include/pcmcia/config.h
CONFIG_MK=config.mk
MODVER=include/linux/modversions.h
rm -f .prereq.ok $CONFIG $CONFIG_H $CONFIG_MK $MODVER

cat << 'EOF' > $CONFIG
#
# Automatically generated by 'make config' -- don't edit!
#
EOF

cat << 'EOF' > $CONFIG_H
/*
  Automatically generated by 'make config' -- don't edit!
*/
#ifndef _PCMCIA_CONFIG_H
#define _PCMCIA_CONFIG_H

#define AUTOCONF_INCLUDED
#define __IN_PCMCIA_PACKAGE__

EOF

write_bool() {
    value=`eval echo '$'$1`
    if [ "$value" = "y" ] ; then
	echo "$1=y" >> $CONFIG
	echo "$1=y" >> $CONFIG_MK
	echo "#define $1 1" >> $CONFIG_H
    else
	echo "# $1 is not defined" >> $CONFIG
	echo "# $1 is not defined" >> $CONFIG_MK
	echo "#undef  $1" >> $CONFIG_H
    fi
}

write_int () {
    value=`eval echo '$'$1`
    echo "$1"=$value >> $CONFIG
    echo "$1=$value" >> $CONFIG_MK
    echo "#define $1 $value" >> $CONFIG_H
}

write_str () {
    value=`eval echo '$'$1`
    echo "$1"=\"$value\" >> $CONFIG
    echo "$1=$value" >> $CONFIG_MK
    echo "#define $1 \"$value\"" >> $CONFIG_H
}

prompt () {
    eval $3=\"$2\"
    if [ "$PROMPT" = "y" ] ; then
	/bin/echo -e "$1 [$2]: \c"
	read tmp
	if [ ! -t 1 ] ; then echo $tmp ; fi
	if [ -n "$tmp" ] ; then eval $3=\"$tmp\" ; fi
    else
	/bin/echo "$1 [$2]"
    fi
}

ask_bool () {
    default=`eval echo '$'$2`
    if [ ! "$default" ] ; then default=n ; fi
    answer=""
    while [ "$answer" != "n" -a "$answer" != "y" ] ; do
	prompt "$1 (y/n)" "$default" answer
    done
    eval "$2=$answer"
    write_bool $2
}

ask_str () {
    default=`eval echo '$'$2`
    prompt "$1" "`echo $default`" answer
    eval $2=\"$answer\"
    write_str $2
}

#=======================================================================

echo ""
echo "    -------- Linux PCMCIA Configuration Script --------"
echo ""
echo "The default responses for each question are correct for most users."
echo "Consult the PCMCIA-HOWTO for additional info about each option."
echo ""

ask_str "Linux kernel source directory" LINUX

match () { case "$1" in $2) return 0; ;; *) return 1;; esac ; }
if ! match "$LINUX" "/*" ; then
    echo "$LINUX is not an absolute path!"
    fail
fi

if [ ! -f $LINUX/kernel/Makefile ] ; then
    echo "Linux source tree '$LINUX' is incomplete or missing!"
    if [ -d $LINUX/include/linux ] ; then
	echo "    The kernel header files are present, but not " \
	     "the full source code."
    fi
    echo "    See the HOWTO for a list of FTP sites for current" \
	 "kernel sources."
    fail
fi

# What kernel are we compiling for?

version () {
    expr $1 \* 65536 + $2 \* 256 + $3
}

echo ""
for TAG in VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION ; do
    eval `sed -ne "/^$TAG/s/[ 	]//gp" $LINUX/Makefile`
done
if [ "$EXTRAVER" != "" ] ; then
    EXTRAVERSION=$EXTRAVER
    write_str EXTRAVER
fi
SRC_RELEASE=$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION
SRC_BASE=$VERSION.$PATCHLEVEL.$SUBLEVEL
VERSION_CODE=`version $VERSION $PATCHLEVEL $SUBLEVEL`
echo "The kernel source tree is version $SRC_RELEASE."
if [ $VERSION_CODE -lt `version 2 0 0` ] ; then
    echo "This package requires at least a 2.0 series kernel."
    fail
fi

HOST_ARCH=`uname -m | sed -e 's/i.86/i386/'`
if [ ! "$ARCH" ] ; then ARCH=$HOST_ARCH ; fi
CUR_RELEASE=`uname -r`
CUR_VERSION=`uname -v`
CUR_BASE=`uname -r | sed -e "s/^\([0-9]\.[0-9]\.[0-9]*\).*/\1/"`
MATCH=0 # default: different releases and/or architectures
if [ $ARCH = $HOST_ARCH ] ; then
    if [ $CUR_RELEASE = $SRC_RELEASE ] ; then
	MATCH=1 # same release, perfect match
    elif [ $CUR_BASE = $SRC_BASE ] ; then
	MATCH=1 # well, maybe same source tree
	echo "  WARNING: the current kernel is sublevel $CUR_RELEASE."
    else
	echo "  WARNING: the current kernel is version $CUR_RELEASE."
    fi
fi

# Check for consistent kernel build dates

CUR_D=`uname -v | sed -e 's/^#[0-9]* //;s/SMP //'`
CUR_D=`echo $CUR_D | sed -e 's/\(:[0-9][0-9]\) .* \([12][90]\)/\1 \2/'`
echo "The current kernel build date is $CUR_D."
SRC_VERSION="unknown";
if [ -f $LINUX/include/linux/compile.h ] ; then
    SRC_VERSION=`grep UTS_VERSION $LINUX/include/linux/compile.h |
	sed -e 's/.*"\(.*\)"/\1/'`
    SRC_D=`echo $SRC_VERSION | sed -e 's/^#[0-9]* //;s/SMP //'`
    SRC_D=`echo $SRC_D | sed -e 's/\(:[0-9][0-9]\) .* \([12][90]\)/\1 \2/'`
    if [ $MATCH = 1 -a "$SRC_D" != "$CUR_D" ] ; then
	echo "  WARNING: the source tree has a build date of $SRC_D."
	if [ `date -d "$SRC_D" +%s` -gt `date -d "$CUR_D" +%s` ] ; then
	    echo "  Did you forget to install your new kernel?"
	fi
    elif [ $MATCH = 1 ] ; then
	MATCH=2 # same release & date
    fi
fi
echo ""

if [ ! "$UCC" ] ; then UCC=cc ; fi
if [ ! "$KCC" ] ; then
    if which kgcc >/dev/null 2>&1 ; then KCC=kgcc ; else KCC="$UCC" ; fi
fi
for x in PREFIX KCC UCC LD KFLAGS UFLAGS PCDEBUG ; do
    write_str $x
done
write_bool USE_PM

ask_bool "Build 'trusting' versions of card utilities" UNSAFE_TOOLS
ask_bool "Include 32-bit (CardBus) card support" CONFIG_CARDBUS
if [ $ARCH = "i386" -a $VERSION_CODE -gt `version 2 2 0` ] ; then
    ask_bool "Include PnP BIOS resource checking" CONFIG_PNP_BIOS
else
    CONFIG_PNP_BIOS=n
    write_bool CONFIG_PNP_BIOS
fi

if [ $MATCH = 0 ] ; then
    CONF_SRC=2 # Use source tree when required to do so
elif [ $MATCH = 2 ] ; then
    CONF_SRC=3 # Use source tree when safe to do so
elif [ $MATCH = 1 -a ! -r $LINUX/.config ] ; then
    CONF_SRC=1 # Use running kernel if tree is not configured
else
    echo ""
    echo "The PCMCIA drivers need to be compiled to match the kernel they"
    echo "will be used with, or some or all of the modules may fail to load."
    echo "If you are not sure what to do, please consult the PCMCIA-HOWTO."
    echo ""
    echo "How would you like to set kernel-specific options?"
    echo "    1 - Read from the currently running kernel"
    echo "    2 - Read from the Linux source tree"

    ans=""
    while [ "$ans" != 1 -a "$ans" != 2 ] ; do
	prompt "Enter option (1-2)" "$CONF_SRC" ans
    done
    CONF_SRC=$ans
    echo ""
fi
echo "CONF_SRC=$CONF_SRC" >> $CONFIG

if [ $CONF_SRC = 1 ] ; then
    UTS_VERSION=$CUR_VERSION ; UTS_RELEASE=$CUR_RELEASE
else
    UTS_VERSION=$SRC_VERSION ; UTS_RELEASE=$SRC_RELEASE
fi

if [ ! "$MODDIR" ] ; then
    if [ -d /lib/modules/preferred ] ; then
	MODDIR=/lib/modules/preferred
    else
	MODDIR=/lib/modules/$UTS_RELEASE
    fi
else
    MODDIR=`echo $MODDIR | \
        sed -e "s/[0-9]\.[0-9]\.[0-9]*.*/$UTS_RELEASE/"`
fi

ask_str "Module install directory" MODDIR
if ! match "$MODDIR" "/lib/modules/*" ; then
    if match "$MODDIR" "[yY]" ; then
	echo "Selected directory '$MODDIR' is bogus!"
	fail
    fi
    echo "WARNING: '$MODDIR' is an unusual target.  Be careful!"
fi

echo ""

#=======================================================================

symcheck () {
    eval "CONFIG_$1=n"
    if $KSYMS | grep "$2" >/dev/null ; then eval "CONFIG_$1=y" ; fi
    if [ "$3" ] ; then
	/sbin/insmod $3 > /dev/null 2>&1
	if $KSYMS | grep "$2" > /dev/null ; then
	    eval "CONFIG_$1=y"
	fi
    fi
}

configcheck () {
    eval "CONFIG_$1=n"
    if grep "^CONFIG_$1=y" $AUTOCONF >/dev/null ; then
	eval "CONFIG_$1=y"
    elif grep "^CONFIG_$1=m" $AUTOCONF >/dev/null ; then
	eval "CONFIG_$1=y"
    fi
}

printflag() {
    value=`eval echo '$'$2`
    /bin/echo -e "    $1 is \c"
    if [ "$value" = "y" ] ; then
	echo "enabled."
    else
	echo "disabled."
    fi
    write_bool $2
}

x86_config_tweak () {
    if [ $VERSION_CODE -ge `version 2 2 0` ] ; then
	if [ $CONFIG_SMP = "y" ] ; then
	    CONFIG_X86_LOCAL_APIC=y
	    CONFIG_X86_IO_APIC=y
	    write_bool CONFIG_X86_LOCAL_APIC
	    write_bool CONFIG_X86_IO_APIC
	fi
	if [ $CONFIG_PCI = "y" ] ; then
	    CONFIG_PCI_QUIRKS=y
	    write_bool CONFIG_PCI_QUIRKS
	fi
    fi
}

printconfig () {
    echo "Kernel configuration options:"
    if [ $VERSION_CODE -ge `version 2 3 18` ] ; then
	printflag "Kernel-tree PCMCIA support" CONFIG_PCMCIA
    fi
    printflag "Symmetric multiprocessing support" CONFIG_SMP
    printflag "PCI BIOS support" CONFIG_PCI
    x86_config_tweak
    printflag "Power management (APM) support" CONFIG_PM
    printflag "SCSI support" CONFIG_SCSI
    printflag "IEEE 1394 (FireWire) support" CONFIG_IEEE1394
    printflag "Networking support" CONFIG_INET
    printflag " Radio network interface support" CONFIG_NET_PCMCIA_RADIO
    printflag " Token Ring device support" CONFIG_TR
    printflag " Fast switching" CONFIG_NET_FASTROUTE
    printflag " Frame Diverter" CONFIG_NET_DIVERT
    printflag "Module version checking" CONFIG_MODVERSIONS
    printflag "Kernel debugging support" CONFIG_DEBUG_KERNEL
    if [ "$CONFIG_DEBUG_KERNEL" = "y" ] ; then
	printflag " Memory leak detection support" CONFIG_MEMLEAK
	printflag " Spinlock debugging" CONFIG_DEBUG_SPINLOCK
    fi
    printflag "Preemptive kernel patch" CONFIG_PREEMPT
    if [ $VERSION_CODE -lt `version 2 1 7` ] ; then
	printflag "PCMCIA IDE device support" CONFIG_BLK_DEV_IDE_PCMCIA
    fi
    if [ $ARCH = "i386" ] ; then
	CONFIG_X86_L1_CACHE_BYTES=32
	write_int CONFIG_X86_L1_CACHE_BYTES
	CONFIG_X86_L1_CACHE_SHIFT=5
	write_int CONFIG_X86_L1_CACHE_SHIFT
    fi
    if [ $ARCH = "alpha" ] ; then
	if [ $VERSION_CODE -lt `version 2 2 0` ] ; then
	    CONFIG_ALPHA_LCA=y
	    write_bool CONFIG_ALPHA_LCA
	else
	    CONFIG_ALPHA_GENERIC=y
	    write_bool CONFIG_ALPHA_GENERIC
	fi
    fi
    if [ $ARCH = "arm" ] ; then
	printflag "Brutus architecture" CONFIG_ARCH_BRUTUS
	printflag "Itsy target platform" CONFIG_ITSY
    fi
    if [ $ARCH = "ppc" ] ; then
    	printflag "MPC8xx architecture" CONFIG_8xx
	printflag "IBM 4xx processor" CONFIG_4xx
    	printflag "Embedded Planet LITE platform" CONFIG_RPXLITE
    	printflag "Embedded Planet CLASSIC platfom" CONFIG_RPXCLASSIC
    	printflag "MPC823 processor" CONFIG_MPC823
    	printflag "MPC850 processor" CONFIG_MPC850
    	printflag "MPC860 processor" CONFIG_MPC860
   	printflag "MPC860T processor" CONFIG_MPC860T
	if [ $VERSION_CODE -gt `version 2 4 0` ] ; then
	    CONFIG_ALL_PPC=y
	    write_bool CONFIG_ALL_PPC
	fi
    fi