size_single_applets.sh

   1 #!/bin/bash
   2 # Which config to use when updating the sizes in "official"
   3 # source tree? I am using x86 glibc toolchain of some typical distro,
   4 # not-static build, 32-bit defconfig build:
   5 # # CONFIG_STATIC is not set
   6 # CONFIG_CROSS_COMPILER_PREFIX=""
   7 # CONFIG_EXTRA_CFLAGS="-m32"
   8 # CONFIG_EXTRA_LDFLAGS="-m32"
   9
  10 # The list of all applet config symbols
  11 test -f include/applets.h || { echo "No include/applets.h file"; exit 1; }
  12 apps="`
  13 grep ^IF_ include/applets.h \
  14 | grep -v ^IF_FEATURE_ \
  15 | sed 's/IF_\([A-Z0-9._-]*\)(.*/\1/' \
  16 | sort | uniq
  17 `"
  18
  19 test $# = 0 && set -- $apps
  20
  21 mintext=999999999
  22 for app; do
  23         b="busybox_${app}"
  24         test -f "$b" || continue
  25         text=`size "$b" | tail -1 | sed -e's/\t/ /g' -e's/^ *//' -e's/ .*//'`
  26         #echo "text from $app: $text"
  27         test x"${text//[0123456789]/}" = x"" || {
  28                 echo "Can't get: size $b"
  29                 exit 1
  30         }
  31         test $mintext -gt $text && {
  32                 mintext=$text
  33                 echo "# New mintext from $app: $mintext"
  34         }
  35         eval "text_${app}=$text"
  36 done
  37
  38 for app; do
  39         b="busybox_${app}"
  40         test -f "$b" || continue
  41         eval "text=\$text_${app}"
  42         echo "# $app adds $((text-mintext))"
  43 done
  44
  45 grep ^IF_ include/applets.h \
  46 | grep -v ^IF_FEATURE_ \
  47 | sed 's/, .*//' \
  48 | sed 's/\t//g' \
  49 | sed 's/ //g' \
  50 | sed 's/(APPLET(/(/' \
  51 | sed 's/(APPLET_[A-Z]*(/(/' \
  52 | sed 's/(IF_[A-Z_]*(/(/' \
  53 | sed 's/IF_\([A-Z0-9._-]*\)(\(.*\)/\1 \2/' \
  54 | sort | uniq \
  55 | while read app name; do
  56         b="busybox_${app}"
  57         test -f "$b" || continue
  58
  59         file=`grep -l "bool \"$name[\" ]" $(find -name '*.c') | xargs`
  60         # A few applets have their CONFIG items in Config.* files, not .c files:
  61         test "$file" || file=`grep -l "bool \"$name[\" ]" $(find -name 'Config.*') | xargs`
  62         test "$file" || continue
  63         #echo "FILE:'$file'"
  64
  65         eval "text=\$text_${app}"
  66         sz=$((text-mintext))
  67         sz_kb=$((sz/1000))
  68         sz_frac=$(( (sz - sz_kb*1000) ))
  69         sz_f=$((sz_frac / 100))
  70
  71         echo -n "sed 's/bool \"$name"'[" ](*[0-9tinykbytes .]*)*"*$/'
  72         if test "$sz_kb" -ge 10; then
  73                 echo -n "bool \"$name (${sz_kb} kb)\""
  74         elif test "$sz_kb" -gt 0 -a "$sz_f" = 0; then
  75                 echo -n "bool \"$name (${sz_kb} kb)\""
  76         elif test "$sz_kb" -gt 0; then
  77                 echo -n "bool \"$name ($sz_kb.${sz_f} kb)\""
  78         elif test "$sz" -ge 200; then
  79                 echo -n "bool \"$name ($sz bytes)\""
  80         else
  81                 echo -n "bool \"$name (tiny)\""
  82         fi
  83         echo "/' -i $file"
  84 done