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#!/usr/bin/env bash
if [ -z "$OBJCOPY" ]; then
OBJCOPY=objcopy
fi
if [ -z "$STRIP" ]; then
STRIP=strip
fi
if [ "$#" -lt 1 ]; then
echo "Usage: djlink [-d <debug_name>] <solib_name> [<djstubify_opts>]"
exit 0
fi
while getopts "d:v" opt; do
case "$opt" in
d)
D="$OPTARG"
;;
v)
djstubify -v
exit $?
;;
\?)
exit 1
;;
esac
done
shift $(($OPTIND-1))
SO=$1
shift
if [ ! -f "$SO" ]; then
echo "$0: file $SO missing"
exit 1
fi
if [ -n "$D" ]; then
if [ -z "`readelf -S $SO | grep .debug_info`" ]; then
echo "$0: -d is specified but $SO is stripped"
exit 1
fi
DBG="/tmp/$D"
$OBJCOPY --only-keep-debug $SO $DBG
TMP=$(mktemp)
$STRIP -o $TMP $SO
$OBJCOPY --add-gnu-debuglink=$DBG $TMP
OFFS=`LC_ALL=C readelf -S $TMP | grep .gnu_debuglink | \
tr -s '[:space:]' | cut -d " " -f 6 | sed -E -e 's/0*/0x/'`
SO=$TMP
DOPT="-n $OFFS -l $DBG"
fi
ID="`LC_ALL=C readelf -S $SO | grep .dj64startup`"
if [ -n "$ID" ]; then
SZ=`LC_ALL=C readelf -S $SO | grep -A 1 .dj64startup | tail -n 1 | \
tr -s '[:space:]' | cut -d " " -f 2 | sed -E -e 's/0*/0x/'`
OFF=`echo "$ID" | tr -s '[:space:]' | cut -d " " -f 6 | sed -E -e 's/0*/0x/'`
DOPT="$DOPT -S $SZ -O $OFF -f 0x8000"
fi
CMD="djstubify -g $* -l $SO $DOPT"
#echo "$CMD"
$CMD
[ -z "$TMP" ] || rm "$TMP"
if [ -n "$DBG" -a -f "$DBG" ]; then
rm $DBG
fi
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