Greetings,
I'm working on a pair of externally built modules for a 2.6.2x vintage
kernel on an embedded system and am having trouble. I've exported
symbols from a HAL module for use in the other module but when I
insmod the latter I get an error saying that "no version for "<some
function name>" found".
I think I've followed the external build rules for the makefile and
its invocation and the build succeeds. The module build process reports:
make[2]: Entering directory `/home/cashwell/marvel/linux/kernels/
linux-2.6.20-custom'
CC [M] /home/cashwell/marvel/linux/modules/testirq/testirq_guts.o
LD [M] /home/cashwell/marvel/linux/modules/testirq/testirq.o
Building modules, stage 2.
MODPOST 1 modules
CC /home/cashwell/marvel/linux/modules/testirq/testirq.mod.o
LD [M] /home/cashwell/marvel/linux/modules/testirq/testirq.ko
But I get an empty Module.symvers and the warning when I insmod the
module that uses a function the module above exports.
All the web searching I've done talks about not having the kernel's
sym file and that the module build breaks. I haven't been able to find
anything that helps with PRODUCING such a file from an externally
built module. The Docs say the MODPOST step is supposed to do this
even when building external modules, and that step is noted above, but
all I get is an empty file.
Anyone have pointers on where I could look?
Thanks,
-Mike
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