From mboxrd@z Thu Jan  1 00:00:00 1970
From: arlie@worldash.org (Arlie Stephens)
Date: Mon, 29 Apr 2013 13:18:38 -0700
Subject: Building multi-file modules
Message-ID: <20130429201837.GA14232@worldash.org>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

Hi Folks,

I've got a module, call it foo, presently built from a single source
file, drivers/char/foo.c It's gotten enormous, so I want to split it.
Ideally I'd keep the original name for one of the source files. So
what I want is a module named foo, build from source files foo.c,
bar.c and baz.c

kbuild is being uncooperative. 

The following works:

obj-$(CONFIG_FOO) += foo_renamed.o
foo_renamed-objs := foo.o bar.o baz.o

I'd just prefer not to rename either the module or the original source
file. Is this supposed to be possible, and if so, how?

I'm on RHEL 6.1, aka kernel 2.6.32, in case that matters.  Also, in
case that matters, I'm building the module into the kerenl ("y" not
"m" in the config.) 


----what I've tried----
The following gives me warnings from make:

obj-$(CONFIG_FOO) += foo.o
foo-objs := foo.o bar.o baz.o


The following never compiles foo.c:

obj-$(CONFIG_FOO) += foo.o
foo-objs := bar.o baz.o


Thanks for any insight,

--
Arlie

(Arlie Stephens					arlie at worldash.org)