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#
# VirtualBox Guest Additions Module Makefile.
#
# (For 2.6.x this file must be 'Makefile'!)
#
# Copyright (C) 2006-2007 Sun Microsystems, Inc.
#
# 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.
#
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
# Clara, CA 95054 USA or visit http://www.sun.com if you need
# additional information or have any questions.
#
## @todo We must make this into a common template *soon*.
#
# 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 $(origin BUILD_TYPE).)
endif
endif
EXTRA_CFLAGS = -fshort-wchar
ifneq ($(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
$(error Unable to find the folder to install the DRM driver to)
endif
endif # MODULE_DIR unspecified
endif
# guess kernel version (24 or 26)
ifeq ($(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)
export INCL
endif
KFLAGS := -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 \
-DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DLOG_TO_BACKDOOR -DIN_MODULE \
-DIN_GUEST_R0
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
# override is required by the Debian guys
override MODULE = vboxvideo
OBJS = vboxvideo_drm.o
ifeq ($(KERN_VERSION), 24)
#
# 2.4
#
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 -ae;
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 .vboxvideo* .tmp_ver* vboxvideo.* Modules.symvers modules.order
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