#

# VirtualBox Guest Additions Module Makefile.

#

# (For 2.6.x this file must be 'Makefile'!)

#

# Copyright (C) 2006-2010 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.

#

#

# 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.

#

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

BUILD_TARGET_ARCH_DEF := amd64

else

BUILD_TARGET_ARCH_DEF := x86

endif

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

BUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH_DEF)

endif

endif

else

ifneq ($(BUILD_TARGET_ARCH),$(BUILD_TARGET_ARCH_DEF))

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

endif

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

ifneq ($(BUILD_TYPE),release)

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

endif

endif

# override is required by the Debian guys

override MODULE = vboxsf

OBJS = \

vfsmod.o \

dirops.o \

regops.o \

utils.o \

GenericRequest.o \

SysHlp.o \

PhysHeap.o \

Init.o \

VMMDev.o \

HGCM.o \

VBoxGuestR0LibSharedFolders.o \

VbglR0CanUsePhysPageList.o

ifeq ($(BUILD_TARGET_ARCH),x86)

OBJS += \

divdi3.o \

moddi3.o \

udivdi3.o \

umoddi3.o \

qdivrem.o

endif

EXTRA_CFLAGS = -fshort-wchar

ifneq ($(MAKECMDGOALS),clean)

ifeq ($(KERNELRELEASE),)

#

# building from this directory

#

# kernel base directory

ifndef KERN_DIR

KERN_DIR := /lib/modules/$(shell uname -r)/build

ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)

KERN_DIR := /usr/src/linux

ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)

$(error Error: unable to find the sources of your current Linux kernel. \

Specify KERN_DIR=<directory> and run Make again)

endif

$(warning Warning: using /usr/src/linux as the source directory of your \

Linux kernel. If this is not correct, specify \

KERN_DIR=<directory> and run Make again.)

endif

else

ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)

$(error Error: KERN_DIR does not point to a directory)

endif

endif

# includes

ifndef KERN_INCL

KERN_INCL = $(KERN_DIR)/include

endif

ifneq ($(shell if test -d $(KERN_INCL); then echo yes; fi),yes)

$(error Error: unable to find the include directory for your current Linux \

kernel. Specify KERN_INCL=<directory> and run Make again)

endif

# module install dir.

ifneq ($(filter install install_rpm,$(MAKECMDGOALS)),)

ifndef MODULE_DIR

MODULE_DIR_TST := /lib/modules/$(shell uname -r)

ifeq ($(shell if test -d $(MODULE_DIR_TST); then echo yes; fi),yes)

MODULE_DIR := $(MODULE_DIR_TST)/misc

else

$(error Unable to find the folder to install the shared folders driver to)

endif

endif # MODULE_DIR unspecified

endif

# guess kernel version (24 or 26)

ifeq ($(shell if grep '"2\.4\.' $(KERN_INCL)/linux/version.h > /dev/null; then echo yes; fi),yes)

KERN_VERSION := 24

else

KERN_VERSION := 26

endif

else # neq($(KERNELRELEASE),)

#

# building from kbuild (make -C <kernel_directory> M=`pwd`)

#

# guess kernel version (24 or 26)

ifeq ($(shell if echo "$(VERSION).$(PATCHLEVEL)." | grep '2\.4\.' > /dev/null; then echo yes; fi),yes)

KERN_VERSION := 24

else

KERN_VERSION := 26

endif

endif # neq($(KERNELRELEASE),)

# debug - show guesses.

ifdef DEBUG

$(warning dbg: KERN_DIR = $(KERN_DIR))

$(warning dbg: KERN_INCL = $(KERN_INCL))

$(warning dbg: MODULE_DIR = $(MODULE_DIR))

$(warning dbg: KERN_VERSION = $(KERN_VERSION))

endif

KBUILD_VERBOSE ?= 1

#

# Compiler options

#

ifndef INCL

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

ifndef KBUILD_EXTMOD

KBUILD_EXTMOD := $(shell pwd)

endif

INCL += $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)

INCL += $(addprefix -I$(KBUILD_EXTMOD)/vboxsf,/ /include /r0drv/linux)

export INCL

endif

KFLAGS := -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 \

-DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST_R0

# our module does not export any symbol

KFLAGS += -DRT_NO_EXPORT_SYMBOL

ifeq ($(BUILD_TARGET_ARCH),amd64)

KFLAGS += -DRT_ARCH_AMD64 -DVBOX_WITH_64_BITS_GUESTS

else

KFLAGS += -DRT_ARCH_X86

endif

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 $(INCL) $(KFLAGS) $(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)

# 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

# build defs

EXTRA_CFLAGS += $(INCL) $(KFLAGS) $(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 . linux r0drv r0drv/linux; do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done

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