Hello all,
Paul Fox wrote:
> > is there a way in sdcc to see the memory requirements of individual
> > object files? i'm thinking of the moral equivalent of "size *.o",
>
> there was no response to the above, so i've put together a script that
> attempts to extract this information from the .rel files for our 8051
> project.
Slightly old thread now but I found it useful (many thanks again, Paul) and
I've made some modifications. The modified script, tested on unbuntu 10.10 and
MAC OS X 10.6.6, is inline after the change list:
- The script now takes the project's map file as the 1st argument in the
command line. It parses it and extracts the paths/names of modules which are
being linked in (instead of brute force parsing obj/*.rel). This is important
in cases when we have files which are being compiled but not linked.
- It now supports named code segments when building with banking support. The
total code size reported is the sum of code found in any of the segments listed
in the code_segs variable, rather than only in CSEG. To add/rename code
segments, just change the values inside $code_segs
- Similar for XRAM segments, it sums up variables assigned to XISEG in addition
to XSEG (listed in $mem_segs)
- If we have built sdcc from sources, we have standard library rel files in the
build dir (one directory with rel files for each memory model / stack-auto /
xstack combo). The script will optionally parse those and include them in the
calculation. In order to turn this on, simply set $sdcc_src to the location of
your SDCC sources. Then change $libdir to correspond to the memory model used
for your builds
- Slightly better portability (mainly related to different versions of sed and
awk - see inline)
========
#!/bin/bash
# Copyright 2010 One Laptop per Child
# License information below.
# produce a listing of the code and initialized constant sizes
# for the all the obj/*.rel files produced by sdcc.
# requires xargs, cut, sed, awk
me=${0##*/}
tmpfile="/tmp/$me.$$"
code_segs=( CSEG HOME BANK1 BANK2 BANK3 XINIT )
mem_segs=( XSEG XISEG )
# gawk refuses to sum up hex values unless we pass --posix
# Try 'awk' first. If that doesn't work, experiment.
AWK=awk
#AWK="gawk --posix"
#AWK=mawk
# If we want to parse SDCC's library rel files, make sure to set SDCC_SRC below
# correctly. Also, we need to change huge-stack-auto to correspond to the memory
# model used for our particular build.
# If we don't care about libraries, just ignore both steps above
sdcc_src=$HOME/svn-working-copies/sdcc
libdir=${sdcc_src}/device/lib/huge-stack-auto
trap "rm -f $tmpfile" 0
main()
{
# make sure sort puts files starting with _ at the start
export LC_COLLATE=C
pwd
date
echo $tmpfile
build_dir=$(dirname $1)
files=( $( grep .rel $1 | $AWK '{print $(NF-1)}' | sort ) )
printf " %50s %7s %7s %7s %7s\n" CODE XRAM CONST DATA BITS
listsizes | tee $tmpfile
echo
echo "-- Totals (see .mem for more accurate info) --"
echo -en " CODE:\t"
sumcol 2 < $tmpfile
echo -en " XRAM:\t"
sumcol 3 < $tmpfile
echo -en "CONST:\t"
sumcol 4 < $tmpfile
echo -en " DATA:\t"
sumcol 5 < $tmpfile
echo -en " BITS:\t"
sumcol 6 < $tmpfile
echo " (Each file with an ISR increments the reported BITS value by 1)"
}
listsizes()
{
for rel_file in ${files[@]}
do
x="$build_dir/$rel_file"
if [ ! -f $x ] ; then x="$libdir/$rel_file"; fi
if [ -f $x ]
then
(
# Output our filename
echo ${x##*/}:
# Sum up all the CODE segments
reg=""
for seg in ${code_segs[@]}
do reg="$reg|$seg"
done
egrep -w ${reg:1} $x |
sed -E -e 's/A //' \
-e 's/size //' \
-e 's/ flags.*//' \
-e "s/${reg:1}//" \
-e 's/[0-9A-F]+/0x&/' |
$AWK '{ SUM += $1 } END { print SUM }'
# Do the same for mem segments
reg=""
for seg in ${mem_segs[@]}
do reg="$reg|$seg"
done
egrep -w ${reg:1} $x |
sed -E -e 's/A //' \
-e 's/size //' \
-e 's/ flags.*//' \
-e "s/${reg:1}//" \
-e 's/[0-9A-F]+/0x&/' |
$AWK '{ SUM += $1 } END { print SUM }'
# CONST, DATA, BITS
(
egrep -w 'CONST' $x
egrep -w 'DSEG' $x
egrep -w 'BIT_BANK' $x
) |
sed -E -e 's/A //' \
-e 's/size //' \
-e 's/ flags.*//' \
-e "s/CONST|DSEG|BIT_BANK//" \
-e 's/[0-9A-F]+/0x&/'
) |
xargs -n 6 printf "%-43s %7d %7d %7d %7d %7d\n"
fi
done
}
# tally the Nth field of the input
sumcol()
{
$AWK '
BEGIN { total = 0; }
{ total += $'$1'}
END { print total; }
'
}
if [ $# != 1 ] ; then echo "Please supply a .map filename as argument."; exit ;
fi
main $1
exit
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
In other words, you are welcome to use, share and improve this program.
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As a special exception, you may use this file as part of a free software
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