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      1 #!/bin/sh
      2 # $NetBSD: checksize.sh,v 1.1 2011/01/26 01:18:54 pooka Exp $
      3 #
      4 # Copyright (c) 1999 Christopher G. Demetriou.  All rights reserved.
      5 #
      6 # Redistribution and use in source and binary forms, with or without
      7 # modification, are permitted provided that the following conditions
      8 # are met:
      9 # 1. Redistributions of source code must retain the above copyright
     10 #    notice, this list of conditions and the following disclaimer.
     11 # 2. Redistributions in binary form must reproduce the above copyright
     12 #    notice, this list of conditions and the following disclaimer in the
     13 #    documentation and/or other materials provided with the distribution.
     14 # 3. All advertising materials mentioning features or use of this software
     15 #    must display the following acknowledgement:
     16 #      This product includes software developed by Christopher G. Demetriou
     17 #	for the NetBSD Project.
     18 # 4. The name of the author may not be used to endorse or promote products
     19 #    derived from this software without specific prior written permission
     20 #
     21 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31 
     32 # four arguments:
     33 #	boot object with headers, to check bss size
     34 #	boot file (just text+data), to check load and total sizes
     35 #	maximum load size
     36 #	maximum total (load + bss) size
     37 
     38 progname=$0
     39 if [ $# != 3 ] || [ ! -f $1 ]; then
     40 	echo "usage: $progname bootfile maxload maxtotal" 1>&2
     41 	exit 1
     42 fi
     43 
     44 bootfile=$1
     45 maxloadsize=$2
     46 maxtotalsize=$3
     47 
     48 if [ "$SIZE" = "" ]; then
     49 	SIZE=size
     50 fi
     51 
     52 size_data=`$SIZE $bootfile`
     53 if [ $? != 0 ]; then
     54 	echo "$progname: couldn't get size of $bootfile" 2>&1
     55 	exit 1
     56 fi
     57 bss_size=`echo "$size_data" | awk ' NR == 2 { print $3 } '`
     58 
     59 load_size=`echo "$size_data" | awk ' NR == 2 { print $1 + $2 } '`
     60 
     61 echo -n "checking sizes for $bootfile... "
     62 
     63 if expr $load_size \> $maxloadsize >/dev/null 2>&1; then
     64 	echo "MAXIMUM LOAD SIZE EXCEEDED ($load_size > $maxloadsize)"
     65 	exit 1
     66 fi
     67 
     68 if expr $load_size + $bss_size \> $maxtotalsize >/dev/null 2>&1; then
     69 	echo "MAXIMUM TOTAL SIZE EXCEEDED ($load_size + $bss_size > $maxtotalsize)"
     70 	exit 1
     71 fi
     72 
     73 echo "OK - `expr $maxloadsize - $load_size` bytes free"
     74 exit 0
     75