view scripts/bloatcheck @ 953:13916d161ec0

xzcat: remove XZ_(PREALLOC|SINGLE), inline xz_dec_bcj_create Because we only use XZ_DYNALLOC, there's a bunch of dead code. This patch removes the #ifdef's and if()s associated with support for multiple modes. single_call was only used to store the mode; it is no longer needed. A little bit of reorganization was needed to reduce the number of prototypes. Documentation associated with dead code was dropped. There are still some relics of multiple modes in the continued presence of "XZ_DYNALLOC" and xz_mode. Additionally, I inlined xz_dec_bcj_create; it was called once. This loses about 125 lines, mostly comments.
author Isaac Dunham <idunham@lavabit.com>
date Wed, 17 Jul 2013 17:25:07 -0500
parents f3169b2492f1
children ca297cc8a204
line wrap: on
line source

#!/bin/bash

if [ $# -ne 2 ]
then
  echo "usage: bloatcheck old new"
  exit 1
fi

addline()
{
  NEXT="$(printf "%s% $((50-${#LASTNAME}))d% 10d %10d" "$LASTNAME" "$OLD" "$NEW" "$DELTA")"
  [ -z "$STUFF" ] &&
    STUFF="$NEXT" ||
    STUFF="$(printf "%s\n%s" "$STUFF" "$NEXT")"
}

diff <(nm --size-sort "$1" | sort -k3,3) \
     <(nm --size-sort "$2" | sort -k3,3) | grep '^[<>]' | sort -k4,4 | \
(
LASTNAME=
DELTA=0
TOTAL=0
OLD=0
NEW=0
STUFF=

printf "name% 46s% 10s% 11s\n" old new delta
echo "-----------------------------------------------------------------------"
while read a b c d
do
  THISNAME=$(echo " $d" | sed 's/[.][0-9]*$//')

  if [ "$LASTNAME" != "$THISNAME" ]
  then
    TOTAL=$(($TOTAL+$DELTA))
    [ $DELTA -ne 0 ] && addline
    LASTNAME="$THISNAME"
    DELTA=0
    OLD=0
    NEW=0
  fi

  SIZE=$(printf "%d" "0x$b")
  if [ "$a" == "<" ]
  then
    OLD=$(($OLD+$SIZE))
    SIZE=$((-1*$SIZE))
  else
    NEW=$(($NEW+$SIZE))
  fi
  DELTA=$(($DELTA+$SIZE))
done

TOTAL=$(($TOTAL+$DELTA))
[ $DELTA -ne 0 ] && addline

echo "$STUFF" | sort -k4,4nr
echo "-----------------------------------------------------------------------"
printf "% 71d total\n" "$TOTAL"
)