annotate scripts/bloatcheck @ 1172:db517206d752 draft

Cosmetic tweak.
author Rob Landley <rob@landley.net>
date Sat, 28 Dec 2013 17:06:55 -0600
parents f3169b2492f1
children ca297cc8a204
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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f3169b2492f1 Replace GPL python debug script with BSD shell script.
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1 #!/bin/bash
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2
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3 if [ $# -ne 2 ]
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4 then
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5 echo "usage: bloatcheck old new"
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6 exit 1
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7 fi
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8
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9 addline()
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10 {
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11 NEXT="$(printf "%s% $((50-${#LASTNAME}))d% 10d %10d" "$LASTNAME" "$OLD" "$NEW" "$DELTA")"
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12 [ -z "$STUFF" ] &&
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13 STUFF="$NEXT" ||
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14 STUFF="$(printf "%s\n%s" "$STUFF" "$NEXT")"
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15 }
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16
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17 diff <(nm --size-sort "$1" | sort -k3,3) \
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18 <(nm --size-sort "$2" | sort -k3,3) | grep '^[<>]' | sort -k4,4 | \
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19 (
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20 LASTNAME=
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21 DELTA=0
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22 TOTAL=0
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23 OLD=0
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24 NEW=0
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25 STUFF=
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26
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27 printf "name% 46s% 10s% 11s\n" old new delta
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28 echo "-----------------------------------------------------------------------"
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29 while read a b c d
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30 do
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31 THISNAME=$(echo " $d" | sed 's/[.][0-9]*$//')
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32
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33 if [ "$LASTNAME" != "$THISNAME" ]
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34 then
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35 TOTAL=$(($TOTAL+$DELTA))
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36 [ $DELTA -ne 0 ] && addline
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37 LASTNAME="$THISNAME"
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38 DELTA=0
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39 OLD=0
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40 NEW=0
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41 fi
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42
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43 SIZE=$(printf "%d" "0x$b")
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44 if [ "$a" == "<" ]
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45 then
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46 OLD=$(($OLD+$SIZE))
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47 SIZE=$((-1*$SIZE))
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48 else
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49 NEW=$(($NEW+$SIZE))
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50 fi
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51 DELTA=$(($DELTA+$SIZE))
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52 done
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53
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54 TOTAL=$(($TOTAL+$DELTA))
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55 [ $DELTA -ne 0 ] && addline
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56
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57 echo "$STUFF" | sort -k4,4nr
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58 echo "-----------------------------------------------------------------------"
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59 printf "% 71d total\n" "$TOTAL"
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60 )