source: tools/perf/process_halts.sh @ 302ef2a

#!/bin/bash -e

SAVE_TEMPS=false
while (( "$#" )); do
        case "$1" in
        -s|--save-temps)
                SAVE_TEMPS=true
                shift
                ;;
        *) # preserve positional arguments
                PARAMS="$PARAMS $1"
                shift
                ;;
        esac
done
# set positional arguments in their proper place
eval set -- "$PARAMS"

if $SAVE_TEMPS; then
        tmpfile=$(mktemp --tmpdir=$(pwd))
        echo "Saving to $tmpfile"
else
        tmpfile=$(mktemp)
        function finish {
                rm -rf "$tmpfile"
        }
        trap finish EXIT
fi
# split the wanted and unwanted output
awk "BEGIN{RS = \"[\n\r]\"}/^Processor|^PH:[0-9]+ - [0-9]+ [0-9]+/ {print \$0 > \"$tmpfile\"; next}{print \$0; fflush()}"

# pass the data to the python scirpt
DIR=$( dirname "${BASH_SOURCE[0]}")
cat $tmpfile | $DIR/view_halts.py ${PARAMS}