#

# VirtualBox Guest Additions kernel module Makefile, common parts.

#

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

#

# Copyright (C) 2006-2011 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:

#

# include Makefile.include

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

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

# MOD_DEFS = <any additional defines which this module needs>

# MOD_INCL = <any additional include paths which this module needs>

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

# MOD_CLEAN = <list of directories that the clean target should look at>

#

# 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_CFLAGS += -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

#

# override is required by the Debian guys

override MODULE = $(MOD_NAME)

OBJS = $(MOD_OBJS)

ifneq ($(MAKECMDGOALS),clean)

KBUILD_VERBOSE ?= 1

#

# Compiler options

#

ifndef INCL

INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))

ifndef KBUILD_EXTMOD

KBUILD_EXTMOD := $(shell pwd)

endif

INCL += $(MOD_INCL)

export INCL

endif

KFLAGS := -D__KERNEL__ -DMODULE $(MOD_DEFS)

ifeq ($(BUILD_TYPE),debug)

KFLAGS += -DDEBUG

endif

ifeq ($(KERN_VERSION), 24)

#

# 2.4

#

ifeq ($(BUILD_TARGET_ARCH),amd64)

KFLAGS += -mcmodel=kernel

endif

CFLAGS := -O2 -DVBOX_LINUX_2_4 $(MOD_CFLAGS) $(INCL) $(KFLAGS) $(MOD_EXTRA) $(KDEBUG)

MODULE_EXT := o

# 2.4 Module linking

$(MODULE).o: $(OBJS)

$(LD) -o $@ -r $(OBJS)

.PHONY: $(MODULE)

all: $(MODULE)

$(MODULE): $(MODULE).o

else

#

# 2.6 and later

#

MODULE_EXT := ko

$(MODULE)-y := $(OBJS)

# build defs

EXTRA_CFLAGS += $(MOD_CFLAGS) $(INCL) $(KFLAGS) $(MOD_EXTRA) $(KDEBUG)

all: $(MODULE)

obj-m += $(MODULE).o

$(MODULE):

$(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) modules

endif

install: $(MODULE)

@mkdir -p $(MODULE_DIR); \

install -m 0664 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \

PATH="$(PATH):/bin:/sbin" depmod -a;

endif # eq($(MAKECMDGOALS),clean)

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

clean:

for f in $(MOD_CLEAN); do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done

rm -rf .$(MOD_NAME)* .tmp_ver* $(MOD_NAME).* Modules.symvers modules.order