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#!/bin/bash
(set -o igncr) 2>/dev/null && set -o igncr; # this comment is required
set -$-ue${DEBUG+xv}
#######################################################################################################################
# This script processes the memory consumption of an application and prints it out to the console.
#
# usage:
# memcalc.bash <READELFFILE> <AVAILABLEFLASH> <AVAILABLESRAM> <STARTFLASH> <STARTSRAM>
#
#######################################################################################################################
READELFFILE=$1 # file location of readelf output
AVAILABLEFLASH=$2 # Max available internal flash
AVAILABLESRAM=$3 # Max available internal SRAM
STARTFLASH=$4 # Start of internal flash
STARTSRAM=$5 # Start of internal SRAM
ENDFLASH=$((STARTFLASH + AVAILABLEFLASH))
ENDSRAM=$((STARTSRAM + AVAILABLESRAM))
# Gather the numbers
memcalc() {
local internalFlash=0
local internalSram=0
printf " -------------------------------------------------- \n"
printf " | %-20s | %-10s | %-8s | \n" 'Section Name' 'Address' 'Size'
printf " -------------------------------------------------- \n"
while IFS=$' \t\n\r' read -r line; do
local lineArray=($line)
local numElem=${#lineArray[@]}
# Only look at potentially valid lines
if [[ $numElem -ge 6 ]]; then
# Section headers
if [[ ${lineArray[0]} == "["* ]]; then
local sectionElement=NULL
local addrElement=00000000
local sizeElement=000000
for (( idx = 0 ; idx <= $numElem-4 ; idx = $idx+1 ));
do
if [[ ${lineArray[$idx]} == *"]" ]]; then
sectionElement=${lineArray[$idx+1]}
fi
# Look for regions with SHF_ALLOC = A
if [[ ${#lineArray[idx]} -eq 8 ]] && [[ ${#lineArray[idx+1]} -eq 6 ]] && [[ ${#lineArray[idx+2]} -eq 6 ]] \
&& [[ ${lineArray[$idx+4]} == *"A"* ]] ; then
addrElement=${lineArray[$idx]}
sizeElement=${lineArray[$idx+2]}
fi
done
# Only consider non-zero size sections
if [[ $addrElement != "00000000" ]]; then
printf " | %-20s | 0x%-10s | %-8s | \n" $sectionElement $addrElement $((16#$sizeElement))
# Use the section headers for SRAM tally
if [[ "0x$addrElement" -ge "$STARTSRAM" ]] && [[ "0x$addrElement" -lt "$ENDSRAM" ]]; then
internalSram=$((internalSram+$((16#$sizeElement))))
fi
fi
# Program headers
elif [[ ${lineArray[1]} == "0x"* ]] && [[ ${lineArray[2]} == "0x"* ]] && [[ ${lineArray[3]} == "0x"* ]] && [[ ${lineArray[4]} == "0x"* ]]\
&& [[ ${lineArray[3]} -ge "$STARTFLASH" ]] && [[ ${lineArray[3]} -lt "$ENDFLASH" ]]; then
# Use the program headers for Flash tally
internalFlash=$((internalFlash+${lineArray[4]}))
fi
fi
done < "$READELFFILE"
printf " -------------------------------------------------- \n\n"
printf " %-41s %-8s \n" 'Total Internal Flash (Available)' $AVAILABLEFLASH
printf " %-41s %-8s \n\n" 'Total Internal Flash (Utilized)' $internalFlash
printf " %-41s %-8s \n" 'Total Internal SRAM (Available)' $AVAILABLESRAM
printf " %-41s %-8s \n" 'Total Internal SRAM (Utilized)' $internalSram
}
memcalc
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