8 $debug && echo "Trying: $* $added"
9 "$@" $added >busybox.map 2>busybox_ld.err
12 # Sanitize lib list (dups, extra spaces etc)
13 #echo "BBOX_LIB_LIST=$BBOX_LIB_LIST"
14 BBOX_LIB_LIST=`echo "$BBOX_LIB_LIST" | xargs -n1 | sort | uniq | xargs`
16 # First link with all libs. If it fails, bail out
17 l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/'`
18 echo "Trying libraries: $BBOX_LIB_LIST"
19 try "-Wl,--start-group $l_list -Wl,--end-group" "$@" \
21 echo "Failed: $* -Wl,--start-group $l_list -Wl,--end-group"
25 # Hack: we are not supposed to know executable name,
26 # but this hack cuts down link time
27 mv busybox_unstripped busybox_unstripped.tmp
28 mv busybox.map busybox.map.tmp
30 # Now try to remove each lib and build without it.
31 # Stop when no lib can be removed.
33 while test "$BBOX_LIB_LIST"; do
34 $debug && echo "Trying libraries: $BBOX_LIB_LIST"
36 for one in $BBOX_LIB_LIST; do
37 without_one=`echo " $BBOX_LIB_LIST " | sed "s/ $one / /g" | xargs`
38 l_list=`echo "$without_one" | sed -e 's/ / -l/g' -e 's/^/-l/'`
39 $debug && echo "Trying -l options: $l_list"
40 if try "-Wl,--start-group $l_list -Wl,--end-group" "$@"; then
41 echo "Library $one is not needed"
42 BBOX_LIB_LIST="$without_one"
46 echo "Library $one is needed"
49 # All libs were needed, can't remove any
51 # If there is no space char, the list has just one lib.
52 # I'm not sure that in this case lib really is 100% needed.
53 # Let's try linking without it anyway... thus commented out.
54 #{ echo "$BBOX_LIB_LIST" | grep -q ' '; } || break
57 mv busybox_unstripped.tmp busybox_unstripped
58 mv busybox.map.tmp busybox.map
60 # Make the binary with final, minimal list of libs
61 echo "Final link with: $BBOX_LIB_LIST"
62 l_list=`echo "$BBOX_LIB_LIST" | sed -e 's/ / -l/g' -e 's/^/-l/'`
63 try "-Wl,--start-group $l_list -Wl,--end-group" "$@" || exit 1
66 exit 0 # Ensure "success" exit code