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.
You are forbidden to forbid anyone else to use, share and improve
what you give them. Help stamp out software-hoarding!
As a special exception, you may use this file as part of a free software
library for the XO of the One Laptop per Child project without restriction.
Specifically, if other files instantiate
templates or use macros or inline functions from this file, or you compile
this file and link it with other files to produce an executable, this
file does not by itself cause the resulting executable to be covered by
the GNU General Public License. This exception does not however
invalidate any other reasons why the executable file might be covered by
the GNU General Public License.
------------------------------------------------------------------------------
Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)!
Finally, a world-class log management solution at an even better price-free!
Download using promo code Free_Logger_4_Dev2Dev. Offer expires
February 28th, so secure your free ArcSight Logger TODAY!
http://p.sf.net/sfu/arcsight-sfd2d
_______________________________________________
Sdcc-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/sdcc-user
