#!/bin/bash

#########################################################################
#                                                                       #
#                                 OCaml                                 #
#                                                                       #
#           Damien Doligez, projet Cristal, INRIA Rocquencourt          #
#                                                                       #
#   Copyright 2005 Institut National de Recherche en Informatique et    #
#   en Automatique.  All rights reserved.  This file is distributed     #
#   under the terms of the Q Public License version 1.0.                #
#                                                                       #
#########################################################################

TMP="${TMPDIR=/tmp}"
TEMP="${TMP}"/ocaml-objcopy-$$.o
UNDEF="${TMP}"/ocaml-objcopy-$$.sym

usage () {
  echo "usage: objcopy {--redefine-sym <old>=<new>} file.o" >&2
  exit 2
}

: > "$UNDEF"

while : ; do
  case $# in
    0) break;;
    *) case $1 in
         --redefine-sym)
           case $2 in
             *=*) ALIAS="$ALIAS -i${2#*=}:${2%%=*}"
                  echo ${2%%=*} >>"$UNDEF"
                  ;;
             *) usage;;
           esac
           shift 2
           ;;
         -*) usage;;
         *) case $FILE in
              "") FILE=$1; shift;;
              *) usage;;
            esac;;
       esac;;
  esac
done

ld -o "$TEMP" -r $ALIAS "$FILE"
ld -o "$FILE" -r -unexported_symbols_list "$UNDEF" "$TEMP"

rm -f "$TEMP" "$UNDEF"