| # |
| # Copyright (C) 2012, 2016 ARM Limited. All rights reserved. |
| # |
| # This program is free software and is provided to you under the terms of the GNU General Public License version 2 |
| # as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. |
| # |
| # A copy of the licence is included with the program, and can also be obtained from Free Software |
| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| # |
| |
| # default to building for the host |
| ARCH ?= $(shell uname -m) |
| |
| # linux build system integration |
| |
| ifneq ($(KERNELRELEASE),) |
| # Inside the kernel build system |
| |
| EXTRA_CFLAGS += -I$(KBUILD_EXTMOD) |
| |
| SRC = umplock_driver.c |
| |
| MODULE:=umplock.ko |
| |
| obj-m := $(MODULE:.ko=.o) |
| $(MODULE:.ko=-y) := $(SRC:.c=.o) |
| |
| $(MODULE:.ko=-objs) := $(SRC:.c=.o) |
| |
| else |
| # Outside the kernel build system |
| # |
| # |
| |
| # Get any user defined KDIR-<names> or maybe even a hardcoded KDIR |
| -include KDIR_CONFIGURATION |
| |
| # Define host system directory |
| KDIR-$(shell uname -m):=/lib/modules/$(shell uname -r)/build |
| |
| ifeq ($(ARCH), arm) |
| # when compiling for ARM we're cross compiling |
| export CROSS_COMPILE ?= arm-none-linux-gnueabi- |
| CONFIG ?= arm |
| else |
| # Compiling for the host |
| CONFIG ?= $(shell uname -m) |
| endif |
| |
| # default cpu to select |
| CPU ?= $(shell uname -m) |
| |
| # look up KDIR based om CPU selection |
| KDIR ?= $(KDIR-$(CPU)) |
| |
| ifeq ($(KDIR),) |
| $(error No KDIR found for platform $(CPU)) |
| endif |
| |
| all: |
| $(MAKE) ARCH=$(ARCH) -C $(KDIR) M=$(CURDIR) |
| |
| kernelrelease: |
| $(MAKE) -C $(KDIR) kernelrelease |
| |
| clean: |
| $(MAKE) ARCH=$(ARCH) -C $(KDIR) M=$(CURDIR) clean |
| |
| endif |