#!/bin/bash
if [ -z "$1" ]; then
    echo "Load an arm ELF binary into an active emacs gud session."
    echo "usage: $0 <binary> [<gdb.script>]" 
    exit 1
fi

ELF=`readlink -f $1`
[ -z "$ELF" ] || [ ! -f "$ELF" ] && echo "Binary $1 not found." && exit 1

[ -z "$2" ] || SCRIPT=`readlink -f $2`




# This is really for gdb+openocd, but it should also work for ordinary
# gdb sessions if you provide a command file that calls "run".

CMD=`mktemp`
cat<<EOF >>$CMD
file $ELF
reset
echo - Loading $ELF\n
load
echo - Done.\\n
shell rm $CMD
EOF


# Run script after upload if specified.  Default behaviour is continue.

if [ ! -z "$SCRIPT" ]; then
cat<<EOF >>$CMD
echo - Executing gdb script $SCRIPT \\n
source $SCRIPT
echo - Done.\\n
EOF
else
cat<<EOF >>$CMD
echo - Continuing.\\n
continue
EOF
fi


# echo "CMD = $CMD, contents:"
# cat $CMD

# interrupt if running
emacsclient -e "(gdb-separate-io-interrupt)" >/dev/null  
sleep .5

# run the command file
emacsclient -e "(gud-call \"source $CMD\")"

# run until gdb removes the file
echo -n Waiting for gdb load to finish  
while [ -f $CMD ]; do
    sleep 1
    echo -n .
done
echo