| 1 | #
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| 2 | # VirtualBox Guest Additions kernel module Makefile, common parts.
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| 3 | #
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| 4 | # (For 2.6.x, the main file must be called 'Makefile'!)
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| 5 | #
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| 6 | # Copyright (C) 2006-2011 Oracle Corporation
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| 7 | #
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| 8 | # This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | # available from http://www.alldomusa.eu.org. This file is free software;
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| 10 | # you can redistribute it and/or modify it under the terms of the GNU
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| 11 | # General Public License (GPL) as published by the Free Software
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| 12 | # Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | # VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | # hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | #
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| 16 |
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| 17 | #
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| 18 | # These file should be included by the Makefiles for any kernel modules we
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| 19 | # build as part of the Guest Additions. The intended way of doing this is as
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| 20 | # follows:
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| 21 | #
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| 22 | # include Makefile.include
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| 23 | # MOD_NAME = <name of the module to be built, without extension>
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| 24 | # MOD_OBJS = <list of object files which should be included>
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| 25 | # MOD_DEFS = <any additional defines which this module needs>
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| 26 | # MOD_INCL = <any additional include paths which this module needs>
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| 27 | # MOD_CFLAGS = <any additional CFLAGS which this module needs>
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| 28 | # MOD_CLEAN = <list of directories that the clean target should look at>
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| 29 | #
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| 30 | # The kmk kBuild define KBUILD_TARGET_ARCH is available.
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| 31 | #
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| 32 | # @todo the shared folders module Makefile also includes the following bits.
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| 33 | # Integrate them if necessary.
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| 34 | # MOD_CFLAGS += -DEXPORT_SYMTAB -DVBGL_VBOXGUEST -DRT_WITH_VBOX
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| 35 | #
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| 36 | # # special hack for Fedora Core 6 2.6.18 (fc6), rhel5 2.6.18 (el5),
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| 37 | # # ClarkConnect 4.3 (cc4) and ClarkConnect 5 (v5)
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| 38 | # ifeq ($(KERNELRELEASE),)
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| 39 | # KFLAGS += $(foreach inc,$(KERN_INCL),\
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| 40 | # $(if $(wildcard $(inc)/linux/utsrelease.h),\
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| 41 | # $(if $(shell grep '"2.6.18.*fc6.*"' $(inc)/linux/utsrelease.h; \
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| 42 | # grep '"2.6.18.*el5.*"' $(inc)/linux/utsrelease.h; \
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| 43 | # grep '"2.6.18.*v5.*"' $(inc)/linux/utsrelease.h; \
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| 44 | # grep '"2.6.18.*cc4.*"' $(inc)/linux/utsrelease.h),\
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| 45 | # -DKERNEL_FC6,),))
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| 46 | # else
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| 47 | # KFLAGS += $(if $(shell echo "$(KERNELRELEASE)"|grep '2.6.18.*fc6.*';\
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| 48 | # echo "$(KERNELRELEASE)"|grep '2.6.18.*el5.*';\
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| 49 | # echo "$(KERNELRELEASE)"|grep '2.6.18.*v5.*';\
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| 50 | # echo "$(KERNELRELEASE)"|grep '2.6.18.*cc4.*'),\
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| 51 | # -DKERNEL_FC6,)
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| 52 | # endif
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| 53 | #
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| 54 | ## important: Don't remove Module.symvers! DKMS does 'make clean' before building ...
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| 55 | # rm -rf .vboxsf* .tmp_ver* vboxsf.* Modules.symvers modules.order
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| 56 | #
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| 57 |
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| 58 |
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| 59 |
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| 60 | # override is required by the Debian guys
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| 61 | override MODULE = $(MOD_NAME)
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| 62 | OBJS = $(MOD_OBJS)
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| 63 |
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| 64 | ifneq ($(MAKECMDGOALS),clean)
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| 65 |
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| 66 | KBUILD_VERBOSE ?= 1
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| 67 |
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| 68 | #
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| 69 | # Compiler options
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| 70 | #
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| 71 | ifndef INCL
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| 72 | INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
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| 73 | ifndef KBUILD_EXTMOD
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| 74 | KBUILD_EXTMOD := $(shell pwd)
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| 75 | endif
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| 76 | INCL += $(MOD_INCL)
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| 77 | export INCL
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| 78 | endif
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| 79 | KFLAGS := -D__KERNEL__ -DMODULE $(MOD_DEFS)
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| 80 | ifeq ($(BUILD_TYPE),debug)
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| 81 | KFLAGS += -DDEBUG
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| 82 | endif
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| 83 |
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| 84 | ifeq ($(KERN_VERSION), 24)
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| 85 | #
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| 86 | # 2.4
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| 87 | #
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| 88 |
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| 89 | ifeq ($(BUILD_TARGET_ARCH),amd64)
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| 90 | KFLAGS += -mcmodel=kernel
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| 91 | endif
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| 92 |
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| 93 | CFLAGS := -O2 -DVBOX_LINUX_2_4 $(MOD_CFLAGS) $(INCL) $(KFLAGS) $(MOD_EXTRA) $(KDEBUG)
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| 94 | MODULE_EXT := o
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| 95 |
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| 96 | # 2.4 Module linking
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| 97 | $(MODULE).o: $(OBJS)
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| 98 | $(LD) -o $@ -r $(OBJS)
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| 99 |
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| 100 | .PHONY: $(MODULE)
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| 101 | all: $(MODULE)
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| 102 | $(MODULE): $(MODULE).o
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| 103 |
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| 104 | else
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| 105 | #
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| 106 | # 2.6 and later
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| 107 | #
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| 108 |
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| 109 | MODULE_EXT := ko
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| 110 |
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| 111 | $(MODULE)-y := $(OBJS)
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| 112 |
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| 113 | # build defs
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| 114 | EXTRA_CFLAGS += $(MOD_CFLAGS) $(INCL) $(KFLAGS) $(MOD_EXTRA) $(KDEBUG)
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| 115 |
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| 116 | all: $(MODULE)
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| 117 |
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| 118 | obj-m += $(MODULE).o
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| 119 |
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| 120 | $(MODULE):
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| 121 | $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) modules
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| 122 |
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| 123 | endif
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| 124 |
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| 125 | install: $(MODULE)
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| 126 | @mkdir -p $(MODULE_DIR); \
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| 127 | install -m 0664 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
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| 128 | PATH="$(PATH):/bin:/sbin" depmod -a;
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| 129 |
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| 130 | endif # eq($(MAKECMDGOALS),clean)
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| 131 |
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| 132 | # important: Don't remove Module.symvers! DKMS does 'make clean' before building ...
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| 133 | clean:
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| 134 | for f in $(MOD_CLEAN); do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done
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| 135 | rm -rf .$(MOD_NAME)* .tmp_ver* $(MOD_NAME).* Modules.symvers modules.order
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