[ECOS] Configtool building and code size

[Robert Cragie]

I had some fun and games trying to build the Configtool from source on SuSE
Linux 7.2, so I thought I'd share them.

What I ended up doing was as follows:

1) Downloaded glib-1.2.10.tar.gz and gtk-1.2.10.tar.gz from
ftp://ftp.gtk.org/pub/gtk/v1.2/ and installed (glib first) following the
guidelines in the INSTALL files.
2) Downloaded wxGTK-2.4.0.tar.bz2 and wxGTK-2.4.0-scrolwin.patch via link on
http://www.ecoscentric.com/devzone/configtool.shtml, unzipped, patched and
built according to the instruction on the eCosCentric website, however I did
NOT use '~' in the --prefix path; this causes problems on 'make install' as
make can't expand '~'.
3) I had to make symbolic links for libtcl; in my case:

    ln -s /usr/lib/libtcl8.3.a /usr/lib/libtcl.a
    ln -s /usr/lib/libtcl8.3.so /usr/lib/libtcl.so

4) Built infra and configtool, again NOT using '~' in any of the paths.

This now seems to work OK. I would suggest to the eCosCentric guys that the
web pages are updated?

The reason I built the configtool is to try to get the code size down for
OpenRISC implementation. My really simple program:

<hello.c>
int my_bss;
int my_data = 2;
const int my_rodata = 4;

int main(int argc, char **argv)
{
   int i = 1;
   int j = 2;
   return i + j;
}
</hello.c>

built with:

or32-elf-gcc -g -I../install/include hello.c -L../install/lib -o
hello -Ttarget.ld -nostdlib

ends up this big:

   text	   data	    bss	    dec	    hex	filename
  82440	   2632	  14832	  99904	  18640	hello

which seems rather large to me. Any idea how I can get it smaller?

Robert Cragie, Design Engineer
_______________________________________________________________
Jennic Ltd, Furnival Street, Sheffield, S1 4QT,  UK
http://www.jennic.com  Tel: +44 (0) 114 281 2655
_______________________________________________________________


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