| 1 | # $Revision: 33184 $
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| 2 | ## @file
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| 3 | # VirtualBox Guest Additions Module Makefile.
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| 4 | #
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| 5 |
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| 6 | #
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| 7 | # Copyright (C) 2006-2010 Oracle Corporation
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| 8 | #
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| 9 | # This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | # available from http://www.virtualbox.org. This file is free software;
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| 11 | # you can redistribute it and/or modify it under the terms of the GNU
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| 12 | # General Public License (GPL) as published by the Free Software
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| 13 | # Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | # VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | # hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | #
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| 17 |
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| 18 | #
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| 19 | # First, figure out which architecture we're targeting and the build type.
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| 20 | # (We have to support basic cross building (ARCH=i386|x86_64).)
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| 21 | # While at it, warn about BUILD_* vars found to help with user problems.
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| 22 | #
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| 23 | ifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)
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| 24 | BUILD_TARGET_ARCH_DEF := amd64
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| 25 | else
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| 26 | BUILD_TARGET_ARCH_DEF := x86
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| 27 | endif
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| 28 | ifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)
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| 29 | $(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)
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| 30 | BUILD_TARGET_ARCH :=
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| 31 | endif
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| 32 | ifeq ($(BUILD_TARGET_ARCH),)
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| 33 | ifeq ($(ARCH),x86_64)
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| 34 | BUILD_TARGET_ARCH := amd64
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| 35 | else
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| 36 | ifeq ($(ARCH),i386)
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| 37 | BUILD_TARGET_ARCH := x86
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| 38 | else
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| 39 | BUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH_DEF)
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| 40 | endif
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| 41 | endif
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| 42 | else
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| 43 | ifneq ($(BUILD_TARGET_ARCH),$(BUILD_TARGET_ARCH_DEF))
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| 44 | $(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)
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| 45 | endif
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| 46 | endif
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| 47 |
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| 48 | ifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)
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| 49 | $(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)
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| 50 | BUILD_TYPE :=
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| 51 | endif
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| 52 | ifeq ($(BUILD_TYPE),)
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| 53 | BUILD_TYPE := release
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| 54 | else
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| 55 | ifneq ($(BUILD_TYPE),release)
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| 56 | $(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)
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| 57 | endif
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| 58 | endif
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| 59 |
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| 60 |
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| 61 | # override is required by the Debian guys
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| 62 | override MODULE = vboxguest
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| 63 | OBJS = \
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| 64 | VBoxGuest-linux.o \
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| 65 | VBoxGuest.o \
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| 66 | VBoxGuest2.o \
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| 67 | GenericRequest.o \
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| 68 | HGCMInternal.o \
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| 69 | Init.o \
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| 70 | PhysHeap.o \
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| 71 | SysHlp.o \
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| 72 | VMMDev.o \
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| 73 | r0drv/alloc-r0drv.o \
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| 74 | r0drv/initterm-r0drv.o \
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| 75 | r0drv/memobj-r0drv.o \
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| 76 | r0drv/mpnotification-r0drv.o \
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| 77 | r0drv/powernotification-r0drv.o \
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| 78 | r0drv/linux/alloc-r0drv-linux.o \
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| 79 | r0drv/linux/assert-r0drv-linux.o \
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| 80 | r0drv/linux/initterm-r0drv-linux.o \
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| 81 | r0drv/linux/memobj-r0drv-linux.o \
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| 82 | r0drv/linux/memuserkernel-r0drv-linux.o \
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| 83 | r0drv/linux/mp-r0drv-linux.o \
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| 84 | r0drv/linux/mpnotification-r0drv-linux.o \
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| 85 | r0drv/linux/process-r0drv-linux.o \
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| 86 | r0drv/linux/semevent-r0drv-linux.o \
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| 87 | r0drv/linux/semeventmulti-r0drv-linux.o \
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| 88 | r0drv/linux/semfastmutex-r0drv-linux.o \
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| 89 | r0drv/linux/spinlock-r0drv-linux.o \
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| 90 | r0drv/linux/thread-r0drv-linux.o \
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| 91 | r0drv/linux/time-r0drv-linux.o \
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| 92 | r0drv/linux/RTLogWriteDebugger-r0drv-linux.o \
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| 93 | r0drv/generic/semspinmutex-r0drv-generic.o \
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| 94 | common/alloc/alloc.o \
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| 95 | common/err/RTErrConvertFromErrno.o \
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| 96 | common/err/RTErrConvertToErrno.o \
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| 97 | common/log/log.o \
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| 98 | common/log/logellipsis.o \
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| 99 | common/log/logrel.o \
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| 100 | common/log/logrelellipsis.o \
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| 101 | common/log/logcom.o \
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| 102 | common/log/logformat.o \
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| 103 | common/misc/RTAssertMsg1Weak.o \
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| 104 | common/misc/RTAssertMsg2.o \
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| 105 | common/misc/RTAssertMsg2Add.o \
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| 106 | common/misc/RTAssertMsg2AddWeak.o \
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| 107 | common/misc/RTAssertMsg2AddWeakV.o \
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| 108 | common/misc/RTAssertMsg2Weak.o \
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| 109 | common/misc/RTAssertMsg2WeakV.o \
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| 110 | common/misc/assert.o \
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| 111 | common/string/RTStrCopy.o \
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| 112 | common/string/strformat.o \
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| 113 | common/string/strformatrt.o \
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| 114 | common/string/strformattype.o \
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| 115 | common/string/strprintf.o \
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| 116 | common/string/strtonum.o \
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| 117 | common/time/time.o \
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| 118 | generic/RTAssertShouldPanic-generic.o \
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| 119 | generic/RTLogWriteStdErr-stub-generic.o \
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| 120 | generic/RTLogWriteStdOut-stub-generic.o \
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| 121 | generic/RTSemEventWait-2-ex-generic.o \
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| 122 | generic/RTSemEventWaitNoResume-2-ex-generic.o \
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| 123 | generic/RTSemEventMultiWait-2-ex-generic.o \
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| 124 | generic/RTSemEventMultiWaitNoResume-2-ex-generic.o \
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| 125 | VBox/log-vbox.o \
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| 126 | VBox/logbackdoor.o
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| 127 | ifeq ($(BUILD_TARGET_ARCH),x86)
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| 128 | OBJS += \
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| 129 | common/math/gcc/divdi3.o \
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| 130 | common/math/gcc/moddi3.o \
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| 131 | common/math/gcc/udivdi3.o \
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| 132 | common/math/gcc/umoddi3.o \
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| 133 | common/math/gcc/qdivrem.o
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| 134 | endif
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| 135 | ifeq ($(BUILD_TARGET_ARCH),amd64)
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| 136 | OBJS += common/alloc/heapsimple.o
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| 137 | endif
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| 138 |
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| 139 | ifneq ($(MAKECMDGOALS),clean)
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| 140 |
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| 141 | ifeq ($(KERNELRELEASE),)
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| 142 |
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| 143 | #
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| 144 | # building from this directory
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| 145 | #
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| 146 |
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| 147 | # kernel base directory
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| 148 | ifndef KERN_DIR
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| 149 | KERN_DIR := /lib/modules/$(shell uname -r)/build
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| 150 | ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
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| 151 | KERN_DIR := /usr/src/linux
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| 152 | ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
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| 153 | $(error Error: unable to find the sources of your current Linux kernel. \
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| 154 | Specify KERN_DIR=<directory> and run Make again)
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| 155 | endif
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| 156 | $(warning Warning: using /usr/src/linux as the source directory of your \
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| 157 | Linux kernel. If this is not correct, specify \
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| 158 | KERN_DIR=<directory> and run Make again.)
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| 159 | endif
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| 160 | else
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| 161 | ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
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| 162 | $(error Error: KERN_DIR does not point to a directory)
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| 163 | endif
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| 164 | endif
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| 165 |
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| 166 | # includes
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| 167 | ifndef KERN_INCL
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| 168 | KERN_INCL = $(KERN_DIR)/include
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| 169 | endif
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| 170 | ifneq ($(shell if test -d $(KERN_INCL); then echo yes; fi),yes)
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| 171 | $(error Error: unable to find the include directory for your current Linux \
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| 172 | kernel. Specify KERN_INCL=<directory> and run Make again)
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| 173 | endif
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| 174 |
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| 175 | # module install dir, only for current kernel
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| 176 | ifneq ($(filter install install_rpm,$(MAKECMDGOALS)),)
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| 177 | ifndef MODULE_DIR
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| 178 | MODULE_DIR_TST := /lib/modules/$(shell uname -r)
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| 179 | ifeq ($(shell if test -d $(MODULE_DIR_TST); then echo yes; fi),yes)
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| 180 | MODULE_DIR := $(MODULE_DIR_TST)/misc
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| 181 | else
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| 182 | $(error Unable to find the folder to install the additions driver to)
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| 183 | endif
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| 184 | endif # MODULE_DIR unspecified
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| 185 | endif
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| 186 |
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| 187 | # guess kernel version (24 or 26)
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| 188 | ifeq ($(shell if grep '"2\.4\.' $(KERN_INCL)/linux/version.h > /dev/null; then echo yes; fi),yes)
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| 189 | KERN_VERSION := 24
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| 190 | else
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| 191 | KERN_VERSION := 26
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| 192 | endif
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| 193 |
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| 194 | else # neq($(KERNELRELEASE),)
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| 195 |
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| 196 | #
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| 197 | # building from kbuild (make -C <kernel_directory> M=`pwd`)
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| 198 | #
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| 199 |
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| 200 | # guess kernel version (24 or 26)
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| 201 | ifeq ($(shell if echo "$(VERSION).$(PATCHLEVEL)." | grep '2\.4\.' > /dev/null; then echo yes; fi),yes)
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| 202 | KERN_VERSION := 24
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| 203 | else
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| 204 | KERN_VERSION := 26
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| 205 | endif
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| 206 |
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| 207 | endif # neq($(KERNELRELEASE),)
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| 208 |
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| 209 | # debug - show guesses.
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| 210 | ifdef DEBUG
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| 211 | $(warning dbg: KERN_DIR = $(KERN_DIR))
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| 212 | $(warning dbg: KERN_INCL = $(KERN_INCL))
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| 213 | $(warning dbg: MODULE_DIR = $(MODULE_DIR))
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| 214 | $(warning dbg: KERN_VERSION = $(KERN_VERSION))
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| 215 | endif
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| 216 |
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| 217 | KBUILD_VERBOSE ?= 1
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| 218 |
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| 219 | #
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| 220 | # Compiler options
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| 221 | #
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| 222 | ifndef INCL
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| 223 | INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
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| 224 | ifndef KBUILD_EXTMOD
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| 225 | KBUILD_EXTMOD := $(shell pwd)
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| 226 | endif
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| 227 | INCL += $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
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| 228 | INCL += $(addprefix -I$(KBUILD_EXTMOD)/vboxguest,/ /include /r0drv/linux)
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| 229 | export INCL
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| 230 | endif
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| 231 | KFLAGS := -D__KERNEL__ -DMODULE \
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| 232 | -DVBOX -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_GUEST -DIN_GUEST_R0 \
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| 233 | -DIN_MODULE -DRT_WITH_VBOX -DVBGL_VBOXGUEST -DVBOX_WITH_HGCM
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| 234 | ifeq ($(BUILD_TARGET_ARCH),amd64)
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| 235 | KFLAGS += -DRT_ARCH_AMD64 -DVBOX_WITH_64_BITS_GUESTS
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| 236 | else
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| 237 | KFLAGS += -DRT_ARCH_X86
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| 238 | endif
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| 239 | ifeq ($(BUILD_TYPE),debug)
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| 240 | KFLAGS += -DDEBUG
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| 241 | endif
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| 242 |
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| 243 | ifeq ($(KERN_VERSION), 24)
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| 244 | #
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| 245 | # 2.4
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| 246 | #
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| 247 |
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| 248 | ifeq ($(BUILD_TARGET_ARCH),amd64)
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| 249 | KFLAGS += -mcmodel=kernel
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| 250 | endif
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| 251 |
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| 252 | CFLAGS := -O2 -DVBOX_LINUX_2_4 -DEXPORT_SYMTAB $(INCL) $(KFLAGS) $(KDEBUG)
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| 253 | MODULE_EXT := o
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| 254 |
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| 255 | # 2.4 Module linking
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| 256 | $(MODULE).o: $(OBJS)
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| 257 | $(LD) -o $@ -r $(OBJS)
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| 258 |
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| 259 | .PHONY: $(MODULE)
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| 260 | all: $(MODULE)
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| 261 | $(MODULE): $(MODULE).o
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| 262 |
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| 263 | else
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| 264 | #
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| 265 | # 2.6 and later
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| 266 | #
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| 267 |
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| 268 | MODULE_EXT := ko
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| 269 |
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| 270 | $(MODULE)-y := $(OBJS)
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| 271 |
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| 272 | # build defs
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| 273 | EXTRA_CFLAGS += $(INCL) $(KFLAGS) $(KDEBUG)
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| 274 |
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| 275 | all: $(MODULE)
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| 276 |
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| 277 | obj-m += $(MODULE).o
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| 278 |
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| 279 | $(MODULE):
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| 280 | $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) modules
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| 281 |
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| 282 | endif
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| 283 |
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| 284 | install: $(MODULE)
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| 285 | @mkdir -p $(MODULE_DIR); \
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| 286 | install -m 0664 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
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| 287 | PATH="$(PATH):/bin:/sbin" depmod -a;
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| 288 |
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| 289 | endif # eq($(MAKECMDGOALS),clean)
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| 290 |
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| 291 | clean:
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| 292 | for f in . linux r0drv generic r0drv/linux r0drv/generic VBox \
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| 293 | common/alloc common/err common/log common/math/gcc common/misc common/string common/time; \
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| 294 | do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done
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| 295 | rm -rf .vboxguest* .tmp_ver* vboxguest.* Module.symvers Modules.symvers modules.order
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