#!/bin/bash

#**************************************************************************
#** Copyright (c) 2012 Paolo Galeone
#**
#** The authors hereby grant permission to use, copy, modify, distribute,
#** and license this software and its documentation for any purpose, provided
#** that existing copyright notices are retained in all copies and that this
#** notice is included verbatim in any distributions.  No written agreement,
#** license, or royalty fee is required for any of the authorized uses.
#** Modifications to this software may be copyrighted by their authors
#** and need not follow the licensing terms described here, provided that
#** the new terms are clearly indicated on the first page of each file where
#** they apply.
#**************************************************************************

#put your settings here

PROCESSOR=32MX440F256H

#linker dir
LKDIR=~/MIPS/Pinguino/p32/lkr/PIC32_PINGUINO_OTG

#include dir for non-free file
INDIR=~/MIPS/Toolchain/include/non-free

#object dir for non-free objects
OBJDIR=~/MIPS/Pinguino/p32/obj/non-free

########### do not edit below this line ##########

if [ ! "$#" -eq 1 ]
then
        echo "Usage: $0 source.c"
        exit -1
fi

GCC_INPUT=$1
FILENAME=`echo $1 | cut -d '.' -f 1`
GCC_OUTPUT="$FILENAME".elf
HEX_OUTPUT="$FILENAME".hex
HEX_TMP="$FILENAME".tmp

#little endian - #preserve sections and data defined in linker and in non-free header file
#define macro to identify processor
#link 2 linker script non free
#link non free object with processor specific functions
#link to crt0.S for program entry point (_reset) and other mips assemply routine
#input
#output
GCC_PARAMS="-EL -ffunction-sections -fdata-sections
                        -D __"$PROCESSOR"__
                        -I $INDIR
                        -T $LKDIR/procdefs.ld
                        -T $LKDIR/elf32pic32mx.x
                        $OBJDIR/processor.o
                        $OBJDIR/crt0.S
                        $GCC_INPUT
                        -o $GCC_OUTPUT";

BADRECORD='^:040000059D006000FA' # unsupported record in hex file / Jean-pierre Mandon 2012

########## EXECUTION #########

#on non return 0 status, exit failure
trap "exit -1" ERR

#copy specific processor object to processor.o
cp "$OBJDIR/$PROCESSOR".o "$OBJDIR"/processor.o

#compile
mips-sde-elf-gcc $GCC_PARAMS

#extract hexfile from elf
mips-sde-elf-objcopy -Oihex $GCC_OUTPUT $HEX_TMP

#remove unsupported record in hex file
grep --invert-match --binary $BADRECORD $HEX_TMP > $HEX_OUTPUT

#remove tmp file
rm $HEX_TMP

#remove trap on err
trap - ERR

#END EXECUTION
echo "Created $HEX_OUTPUT"
echo "Now you can upload this file to your board using ubw32"