File: djelfextract

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#!/usr/bin/env bash

if [ "$#" -lt 2 ]; then
  echo "Usage: djelfextract <solib_name> <out_elf>"
  exit 0
fi

ID="`LC_ALL=C readelf -W -S $1 | grep .dj64startup | sed -E -e 's/.+\] +//' | \
    tr -s '[:space:]'`"
if [ -z "$ID" ]; then
  echo ".dj64startup section not found"
  exit 1
fi

SZ=`echo "$ID" | cut -d " " -f 5 | sed -E -e 's/0*/0x/'`
OFF=`echo "$ID" | cut -d " " -f 4 | sed -E -e 's/0*/0x/'`
dd if=$1 of=$2 bs=1 count=$(($SZ)) skip=$(($OFF))