1#!/bin/sh 2[ $# -lt 4 -o -z "$1" -o -z "$2" -o -z "$3" -o -z "$4" ] && { 3 echo "Usage: $0 <cross> <reference> <pic .a> <destination>" 4 exit 1 5} 6 7cross="$1"; shift 8ref="$1"; shift 9pic="$1"; shift 10dest="$1"; shift 11 12SYMBOLS="$(${cross}nm "$ref" | grep -E '........ [TW] ' | awk '$3 {printf "-u%s ", $3}')" 13set -x 14${cross}gcc -nostdlib -nostartfiles -shared -Wl,--gc-sections -o "$dest" $SYMBOLS "$pic" "$@" 15