Re: [Xenomai-help] ppc crosscompilation, missing headers

[Peter Feuerer <peter.feuerer@domain.hid>]

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Hi,

History:
https://mail.gna.org/public/xenomai-help/2007-05/msg00260.html

> Please see FAQ 14.1.4. ELDK Include Files Missing
> http://www.denx.de/wiki/view/DULG/ELDKIncludeFilesMissing

After doing this workaround, I'm able to compile the userspace part of
Xenomai, but now I can't compile any little kernelmodule using the
xenomai api. I attached the Makefile and the sourcecode of my little
example.

When trying to compile it cannot find headers like asm/param.h or
asm/types.h (because they are not in krnsrc/include/asm-ppc/ and the
workaround just added the userspace/libc headers). I guess there must be
something wrong with the Makefile, but I cannot find the problem.

regards,
--peter

[-- Attachment #2: Makefile --]
[-- Type: text/x-makefile, Size: 510 bytes --]

### List of modules to be build
MODULES = krn

### Default to sources of currently running kernel
KSRC:=../../usr/src/linux

OBJS     := ${patsubst %, %.o, $(MODULES)}
CLEANMOD := ${patsubst %, .%*, $(MODULES)}
PWD      := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)

obj-m        := $(OBJS)
EXTRA_CFLAGS := -I$(KSRC)/include/xenomai -I$(KSRC)/include/xenomai/posix

all::
	$(MAKE) -C $(KSRC) SUBDIRS=$(PWD) modules

clean::
	$(RM) $(CLEANMOD) *.o *.ko *.mod.c Module*.symvers
	$(RM) -R .tmp*

[-- Attachment #3: krn.c --]
[-- Type: text/x-csrc, Size: 512 bytes --]

#include <linux/module.h>
#include <native/task.h>

MODULE_LICENSE("GPL");
RT_TASK task;

void foo_task(void *cookie) {
   int i=0;
	rt_task_set_periodic(NULL, TM_NOW, 50000000);
   while(1)
   {
      rt_task_wait_period(NULL);
      printk("foo %d\n",i++);
   }
}

int init_module(void)
{
	rt_task_create(&task, "foo_task", 0, 99, 0);
	rt_task_start(&task, &foo_task,NULL);
	
	printk("krn module loaded\n");
	return 0;
}

void cleanup_module(void)
{
	rt_task_delete(&task);
	printk("krn module unloaded\n");
}