#!/bin/bash

DEBUG=""

if [ "$1" == "--debug" ]; then
    DEBUG="--debug"
    shift
fi

if [ -z "$1" ]; then
    echo "Usage: $0 /path/to/tree"
    exit 1
fi

p=$1

STRIP=strip
ARCH=`uname -m | sed -e 's/i.86/i386/'`

if [ $ARCH = ia64 ]; then
    STRIP="strip --strip-debug"
fi

if [ $ARCH = x86_64 -o $ARCH = s390x ]; then
    LIBDIR=lib64
else
    LIBDIR=lib
fi

# Must create ld.so.conf, because ldconfig does not cache
# dirs specified on the command line.
touch $p/etc/ld.so.conf
mkdir $p/proc
mount -t proc proc $p/proc
[ -d $p/usr/X11R6/$LIBDIR ] && echo /usr/X11R6/$LIBDIR > $p/etc/ld.so.conf
echo /usr/kerberos/$LIBDIR > $p/etc/ld.so.conf
(cd $p; /usr/sbin/chroot $p usr/sbin/ldconfig )

if [ $ARCH != s390 -a $ARCH != s390x ]; then
    rm -f $p/usr/sbin/ldconfig 
fi
rm $p/etc/ld.so.conf

#
# make sure we have links for programs supplied by busybox
#
# HOWEVER dont clobber existing programs supplied by other packages if exist
#
mv $p/sbin/busybox.anaconda $p/usr/bin/busybox
(cd $p/usr/bin;
set $(./busybox 2>&1| awk '/^\t([[:alnum:]_\[]+,)+/' | sed 's/,//g' | sed 's/ +//');
dontclobber=(sh busybox reboot shutdown poweroff)
while [ -n "$1" ]; do
    save=
    for n in ${dontclobber[@]} ; do
	if [ "$1" == "$n" ]; then
	    save=$n
	fi
    done
    # if it's not in our list and it doesn't exist, link to busybox
    if [ -z "$save" -a ! -f "$1" ]; then
	ln -sf ./busybox $1
    else
	[ -n "$DEBUG" ] && echo "Overriding busybox version of $1"
    fi
    shift
done
)

umount $p/proc

for l in `find $p -type f -perm +100 | grep -v "usr/X11R6/$LIBDIR/modules" | xargs file | sed -n 's/^\([^:]*\):.*ELF.*$/\1/p'`; do
    $STRIP $l -R .comment -R .note `objdump -h $l | \
	sed -n 's/^.*\(\.gnu\.warning\.[^ ]*\) .*$/-R \1/p'`
done