Re: EXPORT_SYMBOL question

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Sam Ravnborg wrote:

On Mon, Mar 28, 2005 at 01:10:35PM +0200, Josef E. Galea wrote:
Hi,

I have 2 modules. The first one uses EXPORT_SYMBOL to make some function available to other modules. These prototypes for these functions were also put in a header file. Now the second module uses the functions the functions defined in the first module by and includes the afore mentioned header file. However when i'm compiling the module, I get a symbol underfined warning. When I load the module it works as expected. Is there any way to get rid of these warnings.

Another problem I'm having is that when I load the second module I get `no version for "rbnode_initialize" found: kernel tainted.' (rbnode_initialize is one of the functions exported by the first module). Both MODULE_LICENSE("GPL"); and MODULE_VERSION are declared in the two modules. Is there anything I'm missing?

You need to compile both modules at the same time.
Do something like this for your two modules foo and bar:

modules/Makefile
obj-y := foo/ bar/
modules/foo/	<= Your foo module
modules/bar/	<= Your bar module

Then when building the modules stay in modules/ and
execute:
make -C <path-to-kernel-src> M=`pwd`

And to install modules:
make -C <path-to-kernel-src> M=`pwd` modules_install

	Sam

Thanks for your help. That solved both the warnings and the kernel tainted message.

Josef
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