#!/bin/sh
#
#
# Copyright 2009 by William Astle <lost@l-w.ca>
#
#This file is part of LWTOOLS.
#
#LWTOOLS is free software: you can redistribute it and/or modify it under the
#terms of the GNU General Public License as published by the Free Software
#Foundation, either version 3 of the License, or (at your option) any later
#version.
#
#This program is distributed in the hope that it will be useful, but WITHOUT
#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
#more details.
#
#You should have received a copy of the GNU General Public License along with
#this program. If not, see <http://www.gnu.org/licenses/>.

# this was based somewhat on the "as" script from gcc6809

#echo "LWTOOLS-ld $0 $*"
path_to_lwlink=lwlink

# Set defaults.  Some are based on the target type, which is 
# determined by the name by which the program was invoked.
output_file=a.out
libpaths=
libs=
stdlibpaths="-L=/usr/local/lib -L=/usr/lib -L=/lib"
verbose=

if [ "$verbose" = 1 ]; then
	echo "$0 $@"
fi

case $0 in
	*m6809-coco-*)
		options="--format=decb"
#		options="-b .text=0x2000 -b .data=0x7000 -b .bss=0x7C00 -b .ctors=0x7F00 -b .dtors=0x7F80 -b vector=0x7FF0"
#		aslink_options="-nwxst"
#		exe_suffix=.bin
		;;
	*)
		options="--format=raw"
#		options="-b .text=0x8000 -b .data=0x1000 -b .bss=0x0100 -b .ctors=0xFD00 -b .dtors=0xFE00 -b vector=0xFFF0"
#		aslink_options="-nwxso"
#		exe_suffix=.s19
		;;
esac


while [ "$*" != "" ]; do
	arg=$1; shift
	case $arg in
		-d|-dc|-dp)
			# force allocation of space to common symbols
			# even if relocatable output file is specified
			# not supported by targets
			;;
		-X)
			# strip unneeded stuff
			# ignored - really just a no-op
			;;
		-gn)
			# Generate NoICE debug file
			# ignored because debugging not supported by targets
			;;
		-gs)
			# Generate SDCC debug file
			# ignored because debugging not supported by targets
			;;
		-o)
			output_file=$1; shift
			;;
		-L*)
			arg=${arg#-L}
			libpaths="$libpaths --library-path=$arg"
			;;
		-l*)
			arg=${arg#-l}
			libs="$libs --library=$arg"
			;;
		--section-start)
			section_value=$1; shift
			options="$options --section-base=$section_value"
			;;
		
		-Map=*)
			arg=${arg#-Map=}; shift
			options="$options --map=$arg"
			;;
			
		--script=*)
			options="$options $arg"
			;;
		-T)
			options="$options --script=$1"; shift
			;;
		-Tbss)
			options="$options --section-base=.bss=$1"; shift
			;;
		-Tdata)
			options="$options --section-base=.data=$1"; shift
			;;
		-Ttext|-Tcode)
			options="$options --section-base=.text=$1"; shift
			;;
		-v|--verbose)
			verbose=1
			;;
		*crt0.o)
			startup_files=$arg
			;;
		-g)
			# Ignored by GNU ld; we should do the same
			;;
		-h|--help)
			echo "ld (m6809)"
			exit 0
			;;
		--format-lwex)
			options="$options --format=lwex"
			;;
		
		--sysroot=*)
			options="$options $arg"
			;;
			
		-nostdlib)
			stdlibpaths=
			;;
		
		-e)
			options="$options --entry=$1"
			shift
			;;
			
		--entry)
			options="$options $arg"
			;;

		--relax)
			;;
		--start-group)
			;;
		--end-group)
			;;
		--gc-sections)
			;;
		-*)
			echo "ld (m6809): unknown option $arg"
			exit 1
			;;
		*)
			input_files="$input_files $arg"
			;;
	esac
done

options="$options -o $output_file"

if [ "$verbose" = "1" ]; then
	echo "$path_to_lwlink $options $input_files $startup_files $libpaths $stdlibpaths $libs"
fi

$path_to_lwlink $options $input_files $startup_files $libpaths $libs
rc=$?

if [ "$rc" != "0" ]; then
	rm -f $output_file
	exit $rc
fi