This a makefile for compiling the kernel module.
# Makefile – makefile of our first driver
#
# if KERNELRELEASE is defined, we've been invoked from the
# kernel build system and can use its language.
ifneq (${KERNELRELEASE},)
obj-m = first-driver.o
# Otherwise we were called directly from the command line.
# Invoke the kernel build system.
else
KERNEL_SOURCE := /lib/modules/2.6.32-504.8.1.el6.x86_64/build
PWD := $(shell pwd)
default:
${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} modules
@echo kernel first-driver is ready
@$(kecho) 'Kernel: $@ is ready'
clean:
${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} clean
endif
.PHONY : install remove
install :
sudo insmod first-driver.ko
remove :
sudo rmmod first-driver
Here I have used echo and kecho as per kernel makefile documantation but it giving the following error:
make -C /lib/modules/2.6.32-504.8.1.el6.x86_64/build SUBDIRS=/home/betatest/Device-Driver-Test modules
make[1]: Entering directory '/usr/src/kernels/2.6.32-504.8.1.el6.x86_64'
Building modules, stage 2.
MODPOST 1 modules
make[1]: Leaving directory '/usr/src/kernels/2.6.32-504.8.1.el6.x86_64'
kernel first-driver is ready
make: Kernel: default is ready: Command not found
Makefile:16: recipe for target 'default' failed
make: *** [default] Error 127
I am using GNU make version 4.1 and gcc version 4.4.7 where am I going wrong. Thanks.....