| 1 | # $Revision: 36671 $
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| 2 | ## @file
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| 3 | # Makefile for the VirtualBox Linux Host Driver.
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| 4 | #
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| 5 |
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| 6 | #
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| 7 | #
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| 8 | # Copyright (C) 2006-2010 Oracle Corporation
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| 9 | #
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| 10 | # This file is part of VirtualBox Open Source Edition (OSE), as
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| 11 | # available from http://www.virtualbox.org. This file is free software;
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| 12 | # you can redistribute it and/or modify it under the terms of the GNU
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| 13 | # General Public License (GPL) as published by the Free Software
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| 14 | # Foundation, in version 2 as it comes in the "COPYING" file of the
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| 15 | # VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 16 | # hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 17 | #
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| 18 | # The contents of this file may alternatively be used under the terms
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| 19 | # of the Common Development and Distribution License Version 1.0
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| 20 | # (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 21 | # VirtualBox OSE distribution, in which case the provisions of the
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| 22 | # CDDL are applicable instead of those of the GPL.
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| 23 | #
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| 24 | # You may elect to license modified versions of this file under the
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| 25 | # terms and conditions of either the GPL or the CDDL or both.
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| 26 | #
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| 27 |
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| 28 | #
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| 29 | # First, figure out which architecture we're targeting and the build type.
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| 30 | # (We have to support basic cross building (ARCH=i386|x86_64).)
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| 31 | # While at it, warn about BUILD_* vars found to help with user problems.
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| 32 | #
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| 33 | ifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)
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| 34 | BUILD_TARGET_ARCH_DEF := amd64
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| 35 | else
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| 36 | BUILD_TARGET_ARCH_DEF := x86
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| 37 | endif
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| 38 | ifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)
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| 39 | $(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)
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| 40 | BUILD_TARGET_ARCH :=
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| 41 | endif
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| 42 | ifeq ($(BUILD_TARGET_ARCH),)
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| 43 | ifeq ($(ARCH),x86_64)
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| 44 | BUILD_TARGET_ARCH := amd64
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| 45 | else
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| 46 | ifeq ($(ARCH),i386)
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| 47 | BUILD_TARGET_ARCH := x86
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| 48 | else
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| 49 | BUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH_DEF)
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| 50 | endif
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| 51 | endif
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| 52 | else
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| 53 | ifneq ($(BUILD_TARGET_ARCH),$(BUILD_TARGET_ARCH_DEF))
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| 54 | $(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)
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| 55 | endif
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| 56 | endif
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| 57 |
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| 58 | ifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)
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| 59 | $(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)
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| 60 | BUILD_TYPE :=
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| 61 | endif
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| 62 | ifeq ($(BUILD_TYPE),)
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| 63 | BUILD_TYPE := release
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| 64 | else
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| 65 | ifneq ($(BUILD_TYPE),release)
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| 66 | $(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)
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| 67 | endif
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| 68 | endif
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| 69 |
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| 70 | # override is required by the Debian guys
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| 71 | override MODULE = vboxdrv
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| 72 | OBJS = \
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| 73 | linux/SUPDrv-linux.o \
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| 74 | SUPDrv.o \
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| 75 | SUPDrvSem.o \
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| 76 | r0drv/alloc-r0drv.o \
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| 77 | r0drv/initterm-r0drv.o \
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| 78 | r0drv/memobj-r0drv.o \
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| 79 | r0drv/mpnotification-r0drv.o \
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| 80 | r0drv/powernotification-r0drv.o \
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| 81 | r0drv/linux/assert-r0drv-linux.o \
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| 82 | r0drv/linux/alloc-r0drv-linux.o \
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| 83 | r0drv/linux/initterm-r0drv-linux.o \
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| 84 | r0drv/linux/memobj-r0drv-linux.o \
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| 85 | r0drv/linux/memuserkernel-r0drv-linux.o \
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| 86 | r0drv/linux/mp-r0drv-linux.o \
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| 87 | r0drv/linux/mpnotification-r0drv-linux.o \
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| 88 | r0drv/linux/process-r0drv-linux.o \
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| 89 | r0drv/linux/semevent-r0drv-linux.o \
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| 90 | r0drv/linux/semeventmulti-r0drv-linux.o \
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| 91 | r0drv/linux/semfastmutex-r0drv-linux.o \
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| 92 | r0drv/linux/semmutex-r0drv-linux.o \
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| 93 | r0drv/linux/spinlock-r0drv-linux.o \
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| 94 | r0drv/linux/thread-r0drv-linux.o \
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| 95 | r0drv/linux/thread2-r0drv-linux.o \
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| 96 | r0drv/linux/time-r0drv-linux.o \
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| 97 | r0drv/linux/timer-r0drv-linux.o \
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| 98 | r0drv/generic/semspinmutex-r0drv-generic.o \
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| 99 | common/alloc/alloc.o \
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| 100 | common/checksum/crc32.o \
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| 101 | common/checksum/ipv4.o \
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| 102 | common/checksum/ipv6.o \
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| 103 | common/err/RTErrConvertFromErrno.o \
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| 104 | common/err/RTErrConvertToErrno.o \
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| 105 | common/log/log.o \
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| 106 | common/log/logellipsis.o \
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| 107 | common/log/logrel.o \
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| 108 | common/log/logrelellipsis.o \
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| 109 | common/log/logcom.o \
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| 110 | common/log/logformat.o \
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| 111 | common/misc/RTAssertMsg1Weak.o \
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| 112 | common/misc/RTAssertMsg2.o \
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| 113 | common/misc/RTAssertMsg2Add.o \
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| 114 | common/misc/RTAssertMsg2AddWeak.o \
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| 115 | common/misc/RTAssertMsg2AddWeakV.o \
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| 116 | common/misc/RTAssertMsg2Weak.o \
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| 117 | common/misc/RTAssertMsg2WeakV.o \
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| 118 | common/misc/assert.o \
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| 119 | common/misc/handletable.o \
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| 120 | common/misc/handletablectx.o \
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| 121 | common/misc/thread.o \
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| 122 | common/string/RTStrCopyP.o \
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| 123 | common/string/strformat.o \
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| 124 | common/string/strformatrt.o \
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| 125 | common/string/strformattype.o \
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| 126 | common/string/strprintf.o \
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| 127 | common/string/strtonum.o \
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| 128 | common/table/avlpv.o \
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| 129 | common/time/time.o \
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| 130 | r0drv/linux/RTLogWriteDebugger-r0drv-linux.o \
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| 131 | generic/RTAssertShouldPanic-generic.o \
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| 132 | generic/RTLogWriteStdErr-stub-generic.o \
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| 133 | generic/RTLogWriteStdOut-stub-generic.o \
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| 134 | generic/RTLogWriteUser-generic.o \
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| 135 | generic/RTMpGetArraySize-generic.o \
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| 136 | generic/RTSemEventWait-2-ex-generic.o \
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| 137 | generic/RTSemEventWaitNoResume-2-ex-generic.o \
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| 138 | generic/RTSemEventMultiWait-2-ex-generic.o \
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| 139 | generic/RTSemEventMultiWaitNoResume-2-ex-generic.o \
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| 140 | generic/RTTimerCreate-generic.o \
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| 141 | generic/mppresent-generic.o \
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| 142 | generic/uuid-generic.o \
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| 143 | VBox/log-vbox.o
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| 144 | ifeq ($(BUILD_TARGET_ARCH),x86)
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| 145 | OBJS += math/gcc/divdi3.o \
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| 146 | math/gcc/moddi3.o \
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| 147 | math/gcc/qdivrem.o \
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| 148 | math/gcc/udivdi3.o \
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| 149 | math/gcc/divdi3.o \
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| 150 | math/gcc/umoddi3.o
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| 151 | endif
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| 152 | ifeq ($(BUILD_TARGET_ARCH),amd64)
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| 153 | OBJS += common/alloc/heapsimple.o
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| 154 | endif
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| 155 |
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| 156 | ifneq ($(MAKECMDGOALS),clean)
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| 157 |
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| 158 | ifeq ($(KERNELRELEASE),)
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| 159 |
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| 160 | #
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| 161 | # building from this directory
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| 162 | #
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| 163 |
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| 164 | # kernel base directory
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| 165 | ifndef KERN_DIR
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| 166 | # build for the current kernel, version check
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| 167 | KERN_DIR := /lib/modules/$(shell uname -r)/build
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| 168 | ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
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| 169 | KERN_DIR := /usr/src/linux
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| 170 | ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
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| 171 | $(error Error: unable to find the sources of your current Linux kernel. \
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| 172 | Specify KERN_DIR=<directory> and run Make again)
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| 173 | endif
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| 174 | $(warning Warning: using /usr/src/linux as the source directory of your \
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| 175 | Linux kernel. If this is not correct, specify \
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| 176 | KERN_DIR=<directory> and run Make again.)
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| 177 | endif
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| 178 | else
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| 179 | ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
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| 180 | $(error Error: KERN_DIR does not point to a directory)
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| 181 | endif
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| 182 | endif
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| 183 |
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| 184 | # includes
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| 185 | ifndef KERN_INCL
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| 186 | KERN_INCL = $(KERN_DIR)/include
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| 187 | endif
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| 188 | ifneq ($(shell if test -d $(KERN_INCL); then echo yes; fi),yes)
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| 189 | $(error Error: unable to find the include directory for your current Linux \
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| 190 | kernel. Specify KERN_INCL=<directory> and run Make again)
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| 191 | endif
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| 192 |
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| 193 | # module install dir, only for current kernel
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| 194 | ifneq ($(filter install install_rpm,$(MAKECMDGOALS)),)
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| 195 | ifndef MODULE_DIR
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| 196 | MODULE_DIR_TST := /lib/modules/$(shell uname -r)
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| 197 | ifeq ($(shell if test -d $(MODULE_DIR_TST); then echo yes; fi),yes)
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| 198 | MODULE_DIR := $(MODULE_DIR_TST)/misc
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| 199 | else
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| 200 | $(error Unable to find the folder to install the support driver to)
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| 201 | endif
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| 202 | endif # MODULE_DIR unspecified
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| 203 | endif
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| 204 |
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| 205 | else # neq($(KERNELRELEASE),)
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| 206 |
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| 207 | #
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| 208 | # building from kbuild (make -C <kernel_directory> M=`pwd`)
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| 209 | #
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| 210 |
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| 211 | endif # neq($(KERNELRELEASE),)
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| 212 |
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| 213 | # debug - show guesses.
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| 214 | ifdef DEBUG
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| 215 | $(warning dbg: KERN_DIR = $(KERN_DIR))
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| 216 | $(warning dbg: KERN_INCL = $(KERN_INCL))
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| 217 | $(warning dbg: MODULE_DIR = $(MODULE_DIR))
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| 218 | endif
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| 219 |
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| 220 | KBUILD_VERBOSE ?= 1
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| 221 |
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| 222 | #
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| 223 | # Compiler options
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| 224 | #
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| 225 | ifndef INCL
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| 226 | INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
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| 227 | ifndef KBUILD_EXTMOD
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| 228 | KBUILD_EXTMOD := $(shell pwd)
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| 229 | endif
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| 230 | INCL += $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
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| 231 | INCL += $(addprefix -I$(KBUILD_EXTMOD)/vboxdrv,/ /include /r0drv/linux)
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| 232 | export INCL
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| 233 | endif
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| 234 | ifneq ($(wildcard $(KBUILD_EXTMOD)/vboxdrv),)
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| 235 | MANGLING := $(KBUILD_EXTMOD)/vboxdrv/include/VBox/SUPDrvMangling.h
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| 236 | else
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| 237 | MANGLING := $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h
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| 238 | endif
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| 239 | KFLAGS := -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 \
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| 240 | -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING
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| 241 | ifdef VBOX_REDHAT_KABI
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| 242 | KFLAGS += -DVBOX_REDHAT_KABI
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| 243 | endif
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| 244 | ifndef CONFIG_VBOXDRV_FIXEDMAJOR
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| 245 | KFLAGS += -DCONFIG_VBOXDRV_AS_MISC
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| 246 | endif
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| 247 | ifeq ($(BUILD_TARGET_ARCH),amd64)
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| 248 | KFLAGS += -DRT_ARCH_AMD64
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| 249 | else
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| 250 | KFLAGS += -DRT_ARCH_X86
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| 251 | endif
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| 252 | # must be consistent with Config.kmk!
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| 253 | KFLAGS += -DVBOX_WITH_64_BITS_GUESTS
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| 254 | ifeq ($(BUILD_TYPE),debug)
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| 255 | KFLAGS += -DDEBUG -DDEBUG_$(USER) -g
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| 256 | # IPRT_DEBUG_SEMS indicates thread wrt sems state via the comm field.
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| 257 | #KFLAGS += -DIPRT_DEBUG_SEMS
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| 258 | endif
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| 259 |
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| 260 | # 2.6 and later
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| 261 | MODULE_EXT := ko
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| 262 | $(MODULE)-y := $(OBJS)
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| 263 |
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| 264 | # build defs
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| 265 | EXTRA_CFLAGS += -include $(MANGLING) $(INCL) $(KFLAGS) $(KDEBUG)
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| 266 |
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| 267 | all: $(MODULE)
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| 268 |
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| 269 | obj-m += $(MODULE).o
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| 270 |
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| 271 | $(MODULE):
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| 272 | $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) -C $(KERN_DIR) modules
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| 273 |
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| 274 | install: $(MODULE)
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| 275 | @mkdir -p $(MODULE_DIR); \
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| 276 | install -m 0664 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
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| 277 | PATH="$(PATH):/bin:/sbin" depmod -a; \
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| 278 | rm -f /etc/vbox/module_not_compiled
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| 279 |
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| 280 | install_rpm: $(MODULE)
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| 281 | @mkdir -p $(MODULE_DIR); \
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| 282 | install -m 0664 $(MODULE).$(MODULE_EXT) $(MODULE_DIR)
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| 283 |
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| 284 | else # eq ($(MAKECMDGOALS),clean)
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| 285 |
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| 286 | ifndef KERN_DIR
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| 287 | KERN_DIR := /lib/modules/$(shell uname -r)/build
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| 288 | ifeq ($(wildcard $(KERN_DIR)/Makefile),)
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| 289 | KERN_DIR := /usr/src/linux
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| 290 | endif
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| 291 | endif
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| 292 | ifeq ($(wildcard $(KERN_DIR)/Makefile),)
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| 293 |
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| 294 | clean:
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| 295 | find . \( -name \*.o -o -name \*.cmd \) -print0 | xargs -0 rm -f
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| 296 | rm -rf .tmp_ver* $(MODULE).* Module.symvers Modules.symvers modules.order
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| 297 |
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| 298 | else
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| 299 |
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| 300 | clean:
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| 301 | $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) -C $(KERN_DIR) clean
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| 302 |
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| 303 | endif
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| 304 |
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| 305 | endif # eq($(MAKECMDGOALS),clean)
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| 306 |
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| 307 | check: $(MODULE)
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| 308 | @if ! readelf -p __ksymtab_strings vboxdrv.ko | grep -E "\[.*\] *(RT|g_..*RT.*)"; then \
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| 309 | echo "All exported IPRT symbols are properly renamed!"; \
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| 310 | else \
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| 311 | echo "error: Some exported IPRT symbols was not properly renamed! See above." >&2; \
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| 312 | false; \
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| 313 | fi
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| 314 |
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