Makefile.include.footer revision 80096fb54d147045204dcc7e3ff273158de03f81
#
# 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:
#
# 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_FLAGS = <any additional CFLAGS which this module needs>
#
# 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
#
# override is required by the Debian guys
override MODULE = $(MOD_NAME)
OBJS = $(MOD_OBJS)
ifneq ($(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)
$(error Error: unable to find the include directory for your current Linux \
kernel. Specify KERN_INCL=<directory> and run Make again)
endif
# module install dir, only for current kernel
ifneq ($(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
$(error Unable to find the folder to install the driver ($(MOD_NAME)) 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 -DVBGL_VBOXGUEST -DVBOX_WITH_HGCM \
-DLOG_TO_BACKDOOR -DRT_WITH_VBOX -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
ifeq ($(KERN_VERSION), 24)
#
# 2.4
#
CFLAGS := -O2 -DVBOX_LINUX_2_4 -DEXPORT_SYMTAB $(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)
# 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)
clean:
for f in . linux r0drv r0drv/linux; do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done