Dan Malek wrote:
> > I've made yet another update to my dead function optimisation
> This is the way the kernel used to be, with the kernel objects
> as *.a files instead of *.o files. I remember a discussion on
> some mailing lists when things changed from *.a to *.o, and I
> asked why it had changed. The response I received was the change
> was due to loadable modules, that when you link the kernel as a
> bunch of *.a files the result is usually missing lots of functions
> that a loadable module may want to call. I was told to trim down
> the size of my embedded kernel by using configuration options
> (and loadable modules) rather than selective loading of functions
> by 'ld'.
These days, kernel/ksyms.c lists some of the symbols and EXPORT_SYMBOL
handles the rest.
Those symbols and everything they refer to should remain in a kernel
with dead function optimisation. (I don't know if they do, but they
probably should do that).
So loadable modules will continue to load.
This archive was generated by hypermail 2b29 : Mon May 15 2000 - 21:00:29 EST