On Mon, May 24, 2004 at 09:49:47AM +0800, Song Sam wrote:

quoted

When compiling an external module use:
for 2.4:
make -C $ERNELSRC SUBDIRS=$PWD modules

Uh,$ERNELSRC or $KERNELSRC?

When compiling modules you better use the kbuild infrastructure, and
then also a kbuild makefile.
The way to use the kbuild infrastructure is to build your
modules with the above command, where $KERNELSRC is
the directory where you have the kernelsrc.
So you should use something like:
make -C /home/sam/src/kernel/v2.4.18/ SUBDIRS=$PWD modules
assuming the src of the kernel is located in
/home/sam/src/kernel/v2.4.18/

[Makefile]
CC = ppc_8xx-gcc

# TOPDIR  := $(shell /bin/pwd)

FILENAME = myic

MYPATH  = /workspace/keep/dmt201/kernel

CPPFLAGS := -D__KERNEL__ -D_REENTRANT
-I$(MYPATH)/include

CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
-Wno-trigraphs -O2 -fomit-frame-pointer \
-fno-strict-aliasing -fno-common -g
-I$(MYPATH)/arch/ppc -fsigned-char -msoft-float -pipe
\
-ffixed-r2 -Wno-uninitialized -mmultiple -mstring

all : $(FILENAME).o

clean :
        rm $(FILENAME).o
$(FILENAME).o : $(FILENAME).c
        $(CC) $(CFLAGS) -DMODULE
-DKBUILD_BASENAME=$(FILENAME) -c $(FILENAME).c

Thanks a million for your notes.

Try with a Makefile like this:
[Makefile]
obj-m := myic.o

That should do it.
[Later you can add the clean stuff]

	Sam

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