release/tools/optimize_lib.sh

   1 #!/bin/sh
   2
   3 #set -x
   4
   5 NM=mipsel-uclibc-nm
   6 LD=mipsel-uclibc-ld
   7 STRIP=mipsel-uclibc-strip
   8
   9 DIR=$1
  10 LIB_SO=$2
  11 LIB_A=$3
  12 LIB_SO_M=$4
  13 SEARCHDIR=$5
  14 INSTALLLIB=$6
  15
  16 MAP=${DIR}/.map
  17 SYM=${DIR}/.sybmols
  18 UNR=${DIR}/.unresolved
  19 BINARIES=`find $SEARCHDIR -path $SEARCHDIR/lib -prune -o -type f -print | file -f - | grep ELF | cut -d':' -f1`
  20
  21 if [ ! -f ${DIR}/${LIB_SO} ] ; then
  22         echo "Cann't find ${DIR}/${LIB_SO}";
  23         exit 0;
  24 fi
  25
  26 if [ ! -f ${DIR}/${LIB_A} ] ; then
  27         echo "Cann't find ${DIR}/${LIB_A}";
  28         exit 0;
  29 fi
  30
  31 rm -f $MAP
  32 rm -f $SYM
  33 rm -f $UNR
  34
  35 $NM -o --defined-only --no-sort ${DIR}/${LIB_SO} | cut -d' ' -f3 > $MAP
  36 $NM --dynamic -u --no-sort $BINARIES | sort -u > $UNR
  37 for symbol in `cat $UNR` ; do
  38         if grep -q "^$symbol" $MAP ; then echo "-u $symbol" >> $SYM ;
  39 fi ; done
  40
  41 if ls $SYM ; then
  42         xargs -t $LD -shared -o ${DIR}/${LIB_SO_M} ${DIR}/${LIB_A} < $SYM ;
  43 fi
  44
  45 if [ "a$INSTALLLIB" != "a" -a -f ${DIR}/${LIB_SO_M} ] ; then
  46         install ${DIR}/${LIB_SO_M} $INSTALLLIB
  47         $STRIP $INSTALLLIB
  48 fi