Hi,
We are trying to build a basic “Hello world” kernel module using 4.4.23-linaro-lt-qcom kernel version on the DragonBoard 410c.
This is the code :
#include <linux/init.h>
#include <linux/module.h>
static int hello_init(void)
}
printk(KERN_ALERT “TEST : Hello world, this is Miri\n”);
return 0;
}
static void hello_exit(void)
{
printk(KERNEL_ALERT “TEST : goodbye from miri\n”);
}
module_init(hello_init);
module_exit(hello_exit);
and the Makefile:
obj-m += Hello.o
KDIR = /usr/src/linux-headers-4.4.23-linaro-lt-qcom
all:
$(MAKE) -C $(KDIR) SUBDIR=$(PWD) modules
clean:
rm -rf *.o *.ko .mod. *.symvers *.order
also tried adding this :
CC = aarch64-linux-gnu-gcc
No luck…
The error is :
root@linaro-alip:/home/linaro/modules# make
make -C /usr/src/linux-headers-4.4.23-linaro-lt-qcom SUBDIR=/home/linaro/modules modules
make[1]: Entering directory ‘/usr/src/linux-headers-4.4.23-linaro-lt-qcom’
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
HOSTCC scripts/sortextable
scripts/sortextable.c:31:32: fatal error: tools/be_byteshift.h: No such file or directory
#include <tools/be_byteshift.h>
^
compilation terminated.
scripts/Makefile.host:91: recipe for target ‘scripts/sortextable’ failed
make[2]: *** [scripts/sortextable] Error 1
Makefile:555: recipe for target ‘scripts’ failed
make[1]: *** [scripts] Error 2
make[1]: Leaving directory ‘/usr/src/linux-headers-4.4.23-linaro-lt-qcom’
Makefile:7: recipe for target ‘all’ failed
make: *** [all] Error 2
If we try make scripts from the kernel directory it also fails.
What is the correct way to build a kernel module for this setup?
Has anyone encountered same problem?
Thanks,
Miri and Lior
(We are CS students who are using the Dragonboard 410c for a university project)