Re: compiling 2.6 kernel module

[suren <suren@xxxxxxxxxxxxx>]

Greg,

Here is the directory structure.

  test-module
     |
     +-- test1
     |      |
     |      +--test1.c
     |      +--Makefile    
     |
     +-- test2
     |    |
     |    +---test2.c
     |    +---Makefile
     |
     +-- system
           |
           + Makefile


The toplevel makefile is "test-module/system/Makefile", and this will
try to invoke "test1/Makefile", and "test2/Makefile", and build a single
module.

#system/Makefile :
#------------------
KERNEL_SRC_DIR = /usr/src/linux-2.6
obj-m := ../test1/
obj-m += ../test2/

all :
	make -C $(KERNEL_SRC_DIR) M='pwd' modules



#test1/Makefile :
#----------------
obj-m += test1.o



#test2/Makefile :
#-----------------
obj-m += test2.o


This could build test1.ko, and test2.ko separately, but not into a
single module. I tried the following in system/Makefile, and this works.
obj-m := complete.o
complete-objs := ../test1/test1.o ../test2/test2.o

Then complete.ko is built properly, and I could install it successfully.
But I want something like this.

----------------------------
#build a single module from .o files in the "obj" directory.
obj-m := complete.o
complete-objs := ../obj/test1.o ../obj/test2.o

#Build all needed object files recursively in to a single "obj"
directory
obj-m += ../test1/
obj-m += ../test2/
----------------------------


Thanks
Suren





On Mon, 2005-05-02 at 13:11, Greg KH wrote:
> On Mon, May 02, 2005 at 01:11:19PM -0700, suren wrote:
> > Hi,
> > Did anybody tried to build a kernel loadable module on 2.6 kernel?
> > 
> > I am trying to build a single module where the required C files spreads
> > across multiple directories(with each subdirectory has a makefile). I am
> > not able  make a single module out of these multiple directories.
> > However, I could build and do insmod if all the C files are in one
> > single directory. 
> > 
> > If anybody succeeded in building a kernel module with multiple
> > directories, Can you please let me know the procedure.
> 
> You can not do this.  Sorry.  Have a pointer to your code to help show
> you how you can structure your modules?
> 
> thanks,
> 
> greg k-h
> 
> greg k-h
> 
> --
> Kernelnewbies: Help each other learn about the Linux kernel.
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