Re: [MiNT] Loadable libraries urgently needed

[Patrice Mandin <mandin.patrice@wanadoo.fr>]

Le Wed, 11 Aug 2004 09:59:41 +0200 (CEST)
Frank Naumann <fnaumann@cs.uni-magdeburg.de> a écrit:

> Hello!
> 
> > I think this is the thing we should go for here.
> 
> That don't help at all to save memory. E.g. the binary is smaller on 
> harddisc but need the same memroy on runtime.

Without MMU, this is the only solution we can use.
Example for people wanting an explanation:

Process 1:     (mintlib for process 1)
(at 0x100000)  (loaded at 0x200000)
/----+----+---\/----+----+---\
|TEXT|DATA|BSS||TEXT|DATA|BSS|
\----+----+---/\----+----+---/

Process 2:     (mintlib for process 2)
(at 0x300000)  (loaded at 0x400000)
/----+----+---\/----+----+---\
|TEXT|DATA|BSS||TEXT|DATA|BSS|
\----+----+---/\----+----+---/

As you say, we don't reduce memory usage, so in memory it is not worse
than current situation. However, we reduce disk space, and avoid
recompilation when a library change: Do you recompile all the binaries RPM
when the mintlib is updated ? So from my point of view, this would be a
progress over current situation.

Plus the fact we could make libraries specifically for each CPU (68000,
68020, 68020+fpu) and the needed ones would be loaded.

-- 
Patrice Mandin
WWW: http://membres.lycos.fr/pmandin/
Programmeur Linux, Atari
Spécialité: Développement, jeux