> But when I compile with:
> urop-vm:~# gcc -c -O2 lkm.c -DMODULE -D__KERNEL__ -DLINUX
>
> it gives me a handful of error messages:
>
> In file included from /usr/include/linux/prefetch.h:13,
> from /usr/include/linux/list.h:6,
> from /usr/include/linux/module.h:12,
> from lkm.c:2:
> /usr/include/asm/processor.h:56: error: `CONFIG_X86_L1_CACHE_SHIFT'
I've got the same problem when try to compile a kernel module inside a UML.
Try this Makefile:
CC=gcc
KERNELDIR=/usr/src/linux-`uname -r`
ARCHDIR=$(KERNELDIR)/arch/um
TTDIR=$(ARCHDIR)/kernel/tt
SKASDIR=$(ARCHDIR)/kernel/skas
CFLAGS= -DDEBUG -D__KERNEL__ -DMODULE -I$(KERNELDIR)/include -I$(ARCHDIR)/include -I$(TTDIR)/include -I$(SKASDIR)/include -Wall \
-Wunused -Wuninitialized -g -O
ALL = main.o
all: $(ALL)
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Daniele Bellucci
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