kernel modules and symbols

[Brian S. Park]

Hi all,
I got Linux running on our custom board and am in the process of learning
how to build the final image to be burned on the flash.

To support our application I wrote simple device driver which maps the
physical address space to user space.
During development (NFS file system), it worked good enough. I could
install/un-install it without any problem using insmod/rmmod.
However, when I tried to install the module when using SELF ramdisk image,
I get bunch of unresolved symbols error.

What gives? I'm using exactly the same kernel so the symbols should be
there whether I use NFS root or SELF ram disk as root.

Any help will be appreciated.

# insmod FPGA_module
Using /lib/modules/2.4.20/FPGA_module.o
insmod: unresolved symbol remap_page_range
insmod: unresolved symbol create_proc_entry
insmod: unresolved symbol ioremap
insmod: unresolved symbol iounmap
insmod: unresolved symbol proc_mkdir
insmod: unresolved symbol remove_proc_entry
insmod: unresolved symbol sprintf
insmod: unresolved symbol printk


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Brian S. Park  brian at corelis.com  (562) 926-6727 x143
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