Getting out-of-kernel modules compiled

From: linux-os (Dick Johnson)
Date: Wed Jan 21 2009 - 10:57:36 EST



Back in 2004, we make the following to compile
out-of-kernel modules. It worked.

Now, the kernel build doesn't "know" how to handle "asm.S"
files and always thinks a "name.o" file is the result of
a "name.c" file, so I can't buld them no matter how hard
I try!

What do I need to do????

#
# Project Makefile for kernel versions over 6
# Created 05-OCT-2004 Richard B. Johnson
#

VER := $(shell uname -r)
PWD := $(shell pwd)

all: driver

driver:
make V=1 -C /usr/src/linux-$(VER) SUBDIRS=$(PWD) modules

rtc_hwr.o: rtc_hwr.S
as -o $@ $<

obj-m = rtc.o
obj-m += rtc_hwr.o

clean:
rm -rf *.o *.ko *.mod.c \.*.cmd

make[2]: *** No rule to make target `/root/BCS/rtc/rtc_hwr.c', needed by `/root/BCS/rtc/rtc_hwr.o'. Stop.
make[1]: *** [_module_/root/BCS/rtc] Error 2
make: *** [driver] Error 2


Cheers,
Dick Johnson
Penguin : Linux version 2.6.25.17 on an i686 machine (4784.32 BogoMips).
My book : http://www.AbominableFirebug.com/
.


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