Re:lib.a

Re:lib.a

[David Kesselring]

The function that I am missing (release_firmware) is compiled into
lib/lib.a. and shows up in lib.a.flags. But it does not show up in vmlinux
binary or the symbol table. I couldn't see that the generic Malta make
file has any garbage collection on but I can't see where it is lost.
What I get is unresolved symbols when I insmod my driver.
Any ideas from the experts?

David Kesselring
Atmel MMC
dkesselr@mmc.atmel.com
919-462-6587

Re: lib.a

[Ralf Baechle]

On Mon, Nov 03, 2003 at 05:22:42PM -0500, David Kesselring wrote:

> The function that I am missing (release_firmware) is compiled into
> lib/lib.a. and shows up in lib.a.flags. But it does not show up in vmlinux
> binary or the symbol table. I couldn't see that the generic Malta make
> file has any garbage collection on but I can't see where it is lost.
> What I get is unresolved symbols when I insmod my driver.
> Any ideas from the experts?

It's a library so if no reference is preceeding the library that member
won't be linked in.

  Ralf

Re: lib.a

[Geert Uytterhoeven]

On Tue, 4 Nov 2003, Ralf Baechle wrote:
> On Mon, Nov 03, 2003 at 05:22:42PM -0500, David Kesselring wrote:
> > The function that I am missing (release_firmware) is compiled into
> > lib/lib.a. and shows up in lib.a.flags. But it does not show up in vmlinux
> > binary or the symbol table. I couldn't see that the generic Malta make
> > file has any garbage collection on but I can't see where it is lost.
> > What I get is unresolved symbols when I insmod my driver.
> > Any ideas from the experts?
> 
> It's a library so if no reference is preceeding the library that member
> won't be linked in.

And to be usable by a module, you have to make sure the symbol is exported by
the kernel using EXPORT_SYMBOL().

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

lib.a

[David Kesselring]

For the mips architecture, it seems like arch/mips/lib/lib.a is linked in
and not lib/lib.a. For example on menuconfig when zlib* is selected, it is
not included in the final link. Is my understanding correct? Specifically,
2.4.23 has a firmware library (from lib/) that I would like to use with a
driver but regardless of my .config it is not being linked.
Thanks for your help.

David Kesselring
Atmel MMC
dkesselr@mmc.atmel.com
919-462-6587