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openwrt-xburst/scripts/relink-lib.sh
nbd d082297902 base-files: relink uclibc and libgcc libraries to remove leftovers of the statically linked initial libgcc
saves a few kb and gets rid of unused not exported functions as well
should also improve the reliability of mklibs

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25800 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-03-01 05:40:38 +00:00

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#!/bin/sh
[ $# -lt 4 -o -z "$1" -o -z "$2" -o -z "$3" -o -z "$4" ] && {
echo "Usage: $0 <cross> <reference> <pic .a> <destination>"
exit 1
}
cross="$1"; shift
ref="$1"; shift
pic="$1"; shift
dest="$1"; shift
SYMBOLS="$(${cross}nm "$ref" | grep -E '........ [TW] ' | awk '$3 {printf "-u%s ", $3}')"
set -x
${cross}gcc -nostdlib -nostartfiles -shared -Wl,--gc-sections -o "$dest" $SYMBOLS "$pic" "$@"