DBus for embedded systems

[Colin Walters]

On Wed, Oct 8, 2008 at 5:46 AM, Lionel Landwerlin
<lionel.landwerlin at openwide.fr> wrote:

> and stripping libdbus.so and dbus-daemon,
>
> I still get :
>
> $ du -h ./dbus/.libs/libdbus-1.so.3.4.0
> 220K    ./dbus/.libs/libdbus-1.so.3.4.0
>
> $ du -h ./bus/dbus-daemon
> 264K ./bus/dbus-daemon

Anyone here familiar with embedded systems optimization?  Are there
good tools to find out what's taking up the space in that binary?
While Googling on this subject I found
http://sourceforge.net/projects/libraryopt/ which is referenced from a
journal article, didn't try it though.

> And that does not even include libexpat.
>
> Is there a plan to configure dbus more precisly ?
>
> For example :
> - I only need a systemwide daemon, is there a plan to desactivate code
> used for --session ?

I don't think the session code is very large.

> - selinux is still compiled in dbus-daemon even with --disable-selinux,
> is it really necessary ?

All of those functions should just be empty stubs when
--disable-selinux is used.  I'm not sure how much space that takes up,
but my guess is not a lot.  However if it is a problem, we could turn
the functions into inline functions in selinux.h instead, which call
the the full implementation in the .c file when SELinux is enabled, or
get inlined to nothing without.