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#!/bin/sh
#
# Calculates the size left in ETRAX cache when bootloader is loaded.
#
BOOT_FILE=`dirname $0`/net/net.out
HEADER_FILE=`dirname $0`/src/e100boot.h
for FILE in $BOOT_FILE $HEADER_FILE; do
if [ ! -f $FILE ]; then
echo "Could not find the file \"$FILE\"!"
exit 1
fi
done
# The cache size is given in hex
CACHE_SIZE=2000
BSS_SIZE=`nm-cris $BOOT_FILE | grep Ebss | cut -d ' ' -f 1 | tr a-f A-F`
TEXT_SIZE=`nm-cris $BOOT_FILE | grep Stext | cut -d ' ' -f 1 | tr a-f A-F`
IO_BUF_END=`grep IO_BUF_END $HEADER_FILE | awk '{ print $3 }' | \
cut -d x -f 2 | tr a-f A-F`
IO_BUF_START=`grep IO_BUF_START $HEADER_FILE | awk '{ print $3 }' | \
cut -d x -f 2 | tr a-f A-F`
FREE_SIZE=`echo "ibase=16 ; \
$CACHE_SIZE - \
($BSS_SIZE - $TEXT_SIZE + $IO_BUF_END - $IO_BUF_START)" | \
bc`
echo "Free cache size when cbl is loaded will be:"
echo -e "\t$FREE_SIZE bytes - size of stack"
if [ $FREE_SIZE -lt 0 ]; then
echo "Bootloader is too large! You will have to do some optimizing..."
exit 1
fi
exit 0
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