Cross Reference: /vbox/src/VBox/HostDrivers/Support/linux/Makefile

	Makefile revision 0013b984212f7f0b741f4121be352249fc7e487b
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# Makefile for the VirtualBox Linux Host Driver.
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# (For 2.6.x this file must be called 'Makefile'!)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# Copyright (C) 2006-2007 innotek GmbH
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# This file is part of VirtualBox Open Source Edition (OSE), as
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# available from http://www.virtualbox.org. This file is free software;
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# you can redistribute it and/or modify it under the terms of the GNU
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# General Public License (GPL) as published by the Free Software
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# Foundation, in version 2 as it comes in the "COPYING" file of the
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# The contents of this file may alternatively be used under the terms
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# of the Common Development and Distribution License Version 1.0
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# (CDDL) only, as it comes in the "COPYING.CDDL" file of the
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# VirtualBox OSE distribution, in which case the provisions of the
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# CDDL are applicable instead of those of the GPL.
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# You may elect to license modified versions of this file under the
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# terms and conditions of either the GPL or the CDDL or both.
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# First, figure out which architecture we're targeting and the build type.
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# (We have to support basic cross building (ARCH=i386|x86_64).)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# While at it, warn about BUILD_* vars found to help with user problems.
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore#
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore $(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore BUILD_TARGET_ARCH :=
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreendif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifeq ($(BUILD_TARGET_ARCH),)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore ifeq ($(ARCH),x86_64)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore  BUILD_TARGET_ARCH := amd64
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore else
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore  ifeq ($(ARCH),i386)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore   BUILD_TARGET_ARCH := x86
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore  else
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore   ifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    BUILD_TARGET_ARCH := amd64
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore   else
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    BUILD_TARGET_ARCH := x86
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore   endif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore  endif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore endif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreelse
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore $(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreendif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore $(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore BUILD_TYPE :=
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreendif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifeq ($(BUILD_TYPE),)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore BUILD_TYPE := release
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreelse
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore $(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)
7014882c6a3672fd0e5d60200af8643ae53c5928Richard Loweendif
7014882c6a3672fd0e5d60200af8643ae53c5928Richard Lowe
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
992413f4053d9470046876b234fe094062b730b7Garrett D'AmoreMODULE = vboxdrv
992413f4053d9470046876b234fe094062b730b7Garrett D'AmoreOBJS   = \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    linux/SUPDrv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    SUPDRVShared.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/alloc-r0drv.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/initterm-r0drv.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/alloc-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/initterm-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/process-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/semevent-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/semeventmulti-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/semfastmutex-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/spinlock-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/thread-r0drv-linux.o
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifeq ($(BUILD_TARGET_ARCH),amd64)
992413f4053d9470046876b234fe094062b730b7Garrett D'AmoreOBJS  += alloc/heapsimple.o
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreendif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifeq ($(BUILD_TYPE),debug)
992413f4053d9470046876b234fe094062b730b7Garrett D'AmoreOBJS  += \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/log/log.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/log/logcom.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/log/logformat.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/string/strformat.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/string/strformatrt.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/string/strprintf.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    common/string/strtonum.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    r0drv/linux/RTLogWriteDebugger-r0drv-linux.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    generic/RTLogWriteStdErr-stub-generic.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    generic/RTLogWriteStdOut-stub-generic.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    generic/RTLogWriteUser-generic.o \
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore    VBox/log-vbox.o \
f4f00ee6d3f12bbd07ebfdc3f8d93438792db6f0Garrett D'Amore    VBox/strformat-vbox.o
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreendif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifneq ($(MAKECMDGOALS),clean)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreifdef KDIR
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore# Debian kernel module build system
992413f4053d9470046876b234fe094062b730b7Garrett D'AmoreKERN_DIR := $(KDIR)
992413f4053d9470046876b234fe094062b730b7Garrett D'Amoreendif
992413f4053d9470046876b234fe094062b730b7Garrett D'Amore
# kernel base directory
ifndef KERN_DIR
 # build for the current kernel, version check
 KERN_DIR := /lib/modules/$(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
 # check if versions match -- works only for later 2.6 kernels
 VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) kernelrelease 2> /dev/null || true)
 ifneq ($(VBOX_KERN_VER),)
  ifneq ($(VBOX_KERN_VER),$(shell uname -r))
   $(error Error: /usr/src/linux (version $(VBOX_KERN_VER)) does not match the current kernel (version $(shell uname -r)))
  endif
 endif
else
 # build for a dedicated kernel, no version check
 ifneq ($(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 support driver to)
  endif
 endif # MODULE_DIR unspecified
endif

# guess kernel version (24 or 26)
KERN_VERSION := $(if $(wildcard $(KERN_DIR)/Rules.make),24,26)

# 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

#
# Compiler options
#
ifndef INCL
 INCL    := -I$(KERN_INCL) $(addprefix -I, $(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 -DRT_WITH_VBOX
ifndef CONFIG_VBOXDRV_FIXEDMAJOR
 KFLAGS  += -DCONFIG_VBOXDRV_AS_MISC
endif
ifeq ($(BUILD_TARGET_ARCH),amd64)
 KFLAGS  += -DRT_ARCH_AMD64
else
 KFLAGS  += -DRT_ARCH_X86
endif
ifeq ($(BUILD_TYPE),debug)
 KFLAGS  += -DDEBUG -DDEBUG_$(USER)
endif

#
# Use the RTR0MemObj API - testing.
# If this makes testboxes crash/burn/leak disable it and add a comment to defect #2116.
#
KFLAGS += -DUSE_NEW_OS_INTERFACE_FOR_MM
OBJS += r0drv/memobj-r0drv.o \
    r0drv/linux/memobj-r0drv-linux.o
ifeq ($(BUILD_TARGET_ARCH),x86) # Some gcc versions ends up needing __divdi3.
OBJS += math/gcc/qdivrem.o \
    math/gcc/divdi3.o
endif

ifeq ($(KERN_VERSION), 24)
# 2.4
TOPDIR         = $(KERN_DIR)
MODULE_EXT    := o
EXTRA_CFLAGS  := -DVBOX_LINUX_2_4
$(MODULE)-objs = $(OBJS)
else
# 2.6 and later
MODULE_EXT    := ko
$(MODULE)-y   := $(OBJS)
endif

# build defs
EXTRA_CFLAGS  += $(INCL) $(KFLAGS) $(KDEBUG)

all: $(MODULE)

obj-m += $(MODULE).o

$(MODULE):
    $(MAKE) KBUILD_VERBOSE=1 -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) modules

ifeq ($(KERN_VERSION), 24)
#
# 2.4 Module linking
#
$(MODULE).o: $(OBJS)
    $(LD) -o $@ -r $(OBJS)

include $(KERN_DIR)/Rules.make

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; \
    rm -f /etc/vbox/module_not_compiled

install_rpm: $(MODULE)
    @mkdir -p $(MODULE_DIR); \
    install -m 0664 $(MODULE).$(MODULE_EXT) $(MODULE_DIR)

endif # eq($(MAKECMDGOALS),clean)

clean:
    for f in . linux r0drv r0drv/linux; do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done
    rm -rf .vboxdrv* .tmp_ver* vboxdrv.* Module.symvers Modules.symvers