#

# VirtualBox Guest Additions kernel module Makefile, common parts.

#

# (For 2.6.x, the main file must be called 'Makefile'!)

#

# Copyright (C) 2006-2007 Oracle Corporation

#

# This file is part of VirtualBox Open Source Edition (OSE), as

# available from http://www.virtualbox.org. This file is free software;

# you can redistribute it and/or modify it under the terms of the GNU

# General Public License (GPL) as published by the Free Software

# Foundation, in version 2 as it comes in the "COPYING" file of the

# VirtualBox OSE distribution. VirtualBox OSE is distributed in the

# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.

#

#

# These file should be included by the Makefiles for any kernel modules we

# build as part of the Guest Additions. The intended way of doing this is as

# follows:

#

# # Linux kbuild sets this to our source directory if we are called from

# # there

# obj ?= $(CURDIR)

# include $(obj)/Makefile.include.header

# MOD_NAME = <name of the module to be built, without extension>

# MOD_OBJS = <list of object files which should be included>

# MOD_FLAGS = <any additional CFLAGS which this module needs>

# include $(obj)/Makefile.include.footer

#

# The kmk kBuild define KBUILD_TARGET_ARCH is available.

#

# @todo the shared folders module Makefile also includes the following bits.

# Integrate them if necessary.

# MOD_FLAGS += -DEXPORT_SYMTAB -DVBGL_VBOXGUEST -DRT_WITH_VBOX

#

# # special hack for Fedora Core 6 2.6.18 (fc6), rhel5 2.6.18 (el5),

# # ClarkConnect 4.3 (cc4) and ClarkConnect 5 (v5)

# ifeq ($(KERNELRELEASE),)

# KFLAGS += $(foreach inc,$(KERN_INCL),\

# $(if $(wildcard $(inc)/linux/utsrelease.h),\

# $(if $(shell grep '"2.6.18.*fc6.*"' $(inc)/linux/utsrelease.h; \

# grep '"2.6.18.*el5.*"' $(inc)/linux/utsrelease.h; \

# grep '"2.6.18.*v5.*"' $(inc)/linux/utsrelease.h; \

# grep '"2.6.18.*cc4.*"' $(inc)/linux/utsrelease.h),\

# -DKERNEL_FC6,),))

# else

# KFLAGS += $(if $(shell echo "$(KERNELRELEASE)"|grep '2.6.18.*fc6.*';\

# echo "$(KERNELRELEASE)"|grep '2.6.18.*el5.*';\

# echo "$(KERNELRELEASE)"|grep '2.6.18.*v5.*';\

# echo "$(KERNELRELEASE)"|grep '2.6.18.*cc4.*'),\

# -DKERNEL_FC6,)

# endif

#

## important: Don't remove Module.symvers! DKMS does 'make clean' before building ...

# rm -rf .vboxsf* .tmp_ver* vboxsf.* Modules.symvers modules.order

#

#

# First, figure out which architecture we're targeting and the build type.

# (We have to support basic cross building (ARCH=i386|x86_64).)

# While at it, warn about BUILD_* vars found to help with user problems.

#

ifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)

$(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)

BUILD_TARGET_ARCH :=

endif

ifeq ($(BUILD_TARGET_ARCH),)

ifeq ($(ARCH),x86_64)

BUILD_TARGET_ARCH := amd64

else

ifeq ($(ARCH),i386)

BUILD_TARGET_ARCH := x86

else

ifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)

BUILD_TARGET_ARCH := amd64

else

BUILD_TARGET_ARCH := x86

endif

endif

endif

else

$(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)

endif

ifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)

$(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)

BUILD_TYPE :=

endif

ifeq ($(BUILD_TYPE),)

BUILD_TYPE := release

else

$(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)

endif