Re: [Xenomai] Error: could not insert module kernel-task.ko: Unknown symbol in module

[Ruika You <crazylinuxcnc@gmail.com>]

Dear Helder Daniel,

Thanks for your guide, I solve this issue.

MODULES        =hello
PWD          := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
KSRC         ?= /lib/modules/$(shell uname -r)/build
obj-m         += ${patsubst %, %.o, $(MODULES)}

#comment this line change to your proposal
#EXTRA_CFLAGS    = -I$(KSRC)/include/xenomai -D_GNU_SOURCE -D_REENTRANT
-D__XENO__

EXTRA_CFLAGS:=$(shell /usr/xenomai/bin/xeno-config --skin native --cflags)
all:
    make -C $(KSRC) M=$(PWD) modules
clean::
    $(RM) $(CLEANMOD) *.o *.ko *.mod.c Module*.symvers Module.markers
modules.order
    $(RM) -R .tmp*

make -C /lib/modules/3.14.0/build M=/home/edm/test/hello modules
make[1]: Entering directory `/home/edm/linuxcnc/linux-kernel'
  CC [M]  /home/edm/test/hello/hello.o
In file included from /home/edm/test/hello/hello.c:4:0:
/usr/xenomai/include/native/task.h: In function ‘rt_task_spawn’:
/usr/xenomai/include/native/task.h:319:5: warning: ‘rt_task_create’ is
deprecated (declared at /usr/xenomai/include/native/task.h:252)
[-Wdeprecated-declarations]
/home/edm/test/hello/hello.c: In function ‘init_module’:
/home/edm/test/hello/hello.c:24:1: warning: ‘rt_task_create’ is deprecated
(declared at /usr/xenomai/include/native/task.h:252)
[-Wdeprecated-declarations]
  Building modules, stage 2.
  MODPOST 1 modules
  CC      /home/edm/test/hello/hello.mod.o
  LD [M]  /home/edm/test/hello/hello.ko
make[1]: Leaving directory `/home/edm/linuxcnc/linux-kernel'

By the way, I am wondering are there warning OK?

-chengxi