avr-objdump -t output diff script

gistfile1.txt

#!/bin/bash

# Diff avr-objdump -t output.
# Compares the presence and size of any non-debug symbols in the given
# section (or all sections if none given).

if [ "$#" = 3 ]; then
        SECTION=$1
        shift;
else
        SECTION='[^     ]*'
fi

if [ "$#" != 2 ]; then
        echo "Usage: $0 [section] file1 file2"
        exit 1
fi

filter() {
        # Drop anything but the request section
        grep -E "^[0-9a-f]+ ....... $SECTION    " |
        # Drop debugging symbols
        grep -Ev '^[0-9a-f]+ .....d. ' |
        # Strip the address and flags, but keep the section, size and
        # symbol name. Make them separated by tabs, so awk can split on
        # that (without also splitting on any spaces inside the symbol
        # name).
        sed -r 's/^[0-9a-f]+ ....... ([^        ]*)     ([0-9a-f]+) (.*)$/\1    \2      \3/' |
        # Shuffle the order of fields (for sorting and easy reading)
        awk -F'\t' '{ printf("%60s %s %s\n", $3, $2, $1); }' |
        sort
}

grc diff <(cat $1 | filter) <(cat $2 | filter)