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Date: Thu, 13 Feb 2003 12:26:10 -0800
From: "Randy.Dunlap" <rddunlap@osdl.org>
To: "shesha bhushan" <bhushan_vadulas@hotmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Exporting Kernel Symbols
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On Thu, 13 Feb 2003 20:22:48 +0000
"shesha bhushan" <bhushan_vadulas@hotmail.com> wrote:

| Hi,
|   I have written a new function in linux/fs/read_write.c and I want to make 
| the function avaliable to other kernel modules loaded using insmod.
| He is what I did:
| 1. Wrore the func my_func() in linux/fs/read_write.c
| 2. Used the macro EXPORT_SYMBOL(my_func) inside linux/fs/read_write.c
| 3. Have a signature of my_func in my_func.h
| 4. Include my_func.h in linux/fs/read_write.c and my_driver.c
| 5. Recompiled the kernel
| 6. Compiler my_driver as loadable module.
| 7. Brought my new kernel Up.
| 8 . Insmod my_driver.o
| Here I get the error "Unresolved symbol my_func"
| Can any one clarify this.

For what kernel version?

In 2.4.20, e.g., in linux/fs/Makefile, change the following line:

export-objs :=	filesystems.o open.o dcache.o buffer.o

to include read_write.o

--
~Randy