VirtualBox

source: vbox/trunk/src/VBox/HostDrivers/Support/linux/Makefile@ 17935

Last change on this file since 17935 was 17935, checked in by vboxsync, 16 years ago

Additions/linux: fixed kernel detection

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File size: 8.5 KB
Line 
1#
2# Makefile for the VirtualBox Linux Host Driver.
3# (For 2.6.x this file must be called 'Makefile'!)
4#
5
6#
7#
8# Copyright (C) 2006-2007 Sun Microsystems, Inc.
9#
10# This file is part of VirtualBox Open Source Edition (OSE), as
11# available from http://www.virtualbox.org. This file is free software;
12# you can redistribute it and/or modify it under the terms of the GNU
13# General Public License (GPL) as published by the Free Software
14# Foundation, in version 2 as it comes in the "COPYING" file of the
15# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17#
18# The contents of this file may alternatively be used under the terms
19# of the Common Development and Distribution License Version 1.0
20# (CDDL) only, as it comes in the "COPYING.CDDL" file of the
21# VirtualBox OSE distribution, in which case the provisions of the
22# CDDL are applicable instead of those of the GPL.
23#
24# You may elect to license modified versions of this file under the
25# terms and conditions of either the GPL or the CDDL or both.
26#
27# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
28# Clara, CA 95054 USA or visit http://www.sun.com if you need
29# additional information or have any questions.
30#
31
32#
33# First, figure out which architecture we're targeting and the build type.
34# (We have to support basic cross building (ARCH=i386|x86_64).)
35# While at it, warn about BUILD_* vars found to help with user problems.
36#
37ifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)
38 $(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)
39 BUILD_TARGET_ARCH :=
40endif
41ifeq ($(BUILD_TARGET_ARCH),)
42 ifeq ($(ARCH),x86_64)
43 BUILD_TARGET_ARCH := amd64
44 else
45 ifeq ($(ARCH),i386)
46 BUILD_TARGET_ARCH := x86
47 else
48 ifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)
49 BUILD_TARGET_ARCH := amd64
50 else
51 BUILD_TARGET_ARCH := x86
52 endif
53 endif
54 endif
55else
56 $(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)
57endif
58
59ifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)
60 $(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)
61 BUILD_TYPE :=
62endif
63ifeq ($(BUILD_TYPE),)
64 BUILD_TYPE := release
65else
66 $(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)
67endif
68
69# use vm_insert_page() API (if available) to map kernel pages to userland - better debugging
70# VBOX_USE_INSERT_PAGE = 1
71
72# override is required by the Debian guys
73override MODULE = vboxdrv
74OBJS = \
75 linux/SUPDrv-linux.o \
76 SUPDrv.o \
77 r0drv/alloc-r0drv.o \
78 r0drv/initterm-r0drv.o \
79 r0drv/memobj-r0drv.o \
80 r0drv/mpnotification-r0drv.o \
81 r0drv/powernotification-r0drv.o \
82 r0drv/linux/assert-r0drv-linux.o \
83 r0drv/linux/alloc-r0drv-linux.o \
84 r0drv/linux/initterm-r0drv-linux.o \
85 r0drv/linux/memobj-r0drv-linux.o \
86 r0drv/linux/mp-r0drv-linux.o \
87 r0drv/linux/mpnotification-r0drv-linux.o \
88 r0drv/linux/process-r0drv-linux.o \
89 r0drv/linux/semevent-r0drv-linux.o \
90 r0drv/linux/semeventmulti-r0drv-linux.o \
91 r0drv/linux/semfastmutex-r0drv-linux.o \
92 r0drv/linux/spinlock-r0drv-linux.o \
93 r0drv/linux/thread-r0drv-linux.o \
94 r0drv/linux/thread2-r0drv-linux.o \
95 r0drv/linux/time-r0drv-linux.o \
96 r0drv/linux/timer-r0drv-linux.o \
97 common/err/RTErrConvertFromErrno.o \
98 common/log/log.o \
99 common/log/logellipsis.o \
100 common/log/logrel.o \
101 common/log/logrelellipsis.o \
102 common/log/logcom.o \
103 common/log/logformat.o \
104 common/string/strformat.o \
105 common/string/strformatrt.o \
106 common/string/strformattype.o \
107 common/string/strprintf.o \
108 common/string/strtonum.o \
109 r0drv/linux/RTLogWriteDebugger-r0drv-linux.o \
110 generic/RTAssertShouldPanic-generic.o \
111 generic/RTLogWriteStdErr-stub-generic.o \
112 generic/RTLogWriteStdOut-stub-generic.o \
113 generic/RTLogWriteUser-generic.o \
114 VBox/log-vbox.o \
115 VBox/strformat-vbox.o
116ifeq ($(BUILD_TARGET_ARCH),x86)
117OBJS += math/gcc/divdi3.o \
118 math/gcc/moddi3.o \
119 math/gcc/qdivrem.o \
120 math/gcc/udivdi3.o \
121 math/gcc/divdi3.o \
122 math/gcc/umoddi3.o
123endif
124ifeq ($(BUILD_TARGET_ARCH),amd64)
125OBJS += alloc/heapsimple.o
126endif
127
128ifneq ($(MAKECMDGOALS),clean)
129
130ifeq ($(KERNELRELEASE),)
131
132 #
133 # building from this directory
134 #
135
136 # kernel base directory
137 ifndef KERN_DIR
138 # build for the current kernel, version check
139 KERN_DIR := /lib/modules/$(shell uname -r)/build
140 ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
141 KERN_DIR := /usr/src/linux
142 ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
143 $(error Error: unable to find the sources of your current Linux kernel. \
144 Specify KERN_DIR=<directory> and run Make again)
145 endif
146 $(warning Warning: using /usr/src/linux as the source directory of your \
147 Linux kernel. If this is not correct, specify \
148 KERN_DIR=<directory> and run Make again.)
149 endif
150 # check if versions match -- works only for later 2.6 kernels
151 VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) kernelrelease 2> /dev/null || true)
152 ifneq ($(VBOX_KERN_VER),)
153 ifneq ($(VBOX_KERN_VER),$(shell uname -r))
154 $(error Error: /usr/src/linux (version $(VBOX_KERN_VER)) does not match \
155 the current kernel (version $(shell uname -r)))
156 endif
157 endif
158 else
159 # build for a dedicated kernel, no version check
160 ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
161 $(error Error: KERN_DIR does not point to a directory)
162 endif
163 endif
164
165 # includes
166 ifndef KERN_INCL
167 KERN_INCL = $(KERN_DIR)/include
168 endif
169 ifneq ($(shell if test -d $(KERN_INCL); then echo yes; fi),yes)
170 $(error Error: unable to find the include directory for your current Linux \
171 kernel. Specify KERN_INCL=<directory> and run Make again)
172 endif
173
174 # module install dir, only for current kernel
175 ifneq ($(filter install install_rpm,$(MAKECMDGOALS)),)
176 ifndef MODULE_DIR
177 MODULE_DIR_TST := /lib/modules/$(shell uname -r)
178 ifeq ($(shell if test -d $(MODULE_DIR_TST); then echo yes; fi),yes)
179 MODULE_DIR := $(MODULE_DIR_TST)/misc
180 else
181 $(error Unable to find the folder to install the support driver to)
182 endif
183 endif # MODULE_DIR unspecified
184 endif
185
186else # neq($(KERNELRELEASE),)
187
188 #
189 # building from kbuild (make -C <kernel_directory> M=`pwd`)
190 #
191
192endif # neq($(KERNELRELEASE),)
193
194# debug - show guesses.
195ifdef DEBUG
196$(warning dbg: KERN_DIR = $(KERN_DIR))
197$(warning dbg: KERN_INCL = $(KERN_INCL))
198$(warning dbg: MODULE_DIR = $(MODULE_DIR))
199endif
200
201KBUILD_VERBOSE ?= 1
202
203#
204# Compiler options
205#
206ifndef INCL
207 INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
208 ifndef KBUILD_EXTMOD
209 KBUILD_EXTMOD := $(shell pwd)
210 endif
211 INCL += $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
212 export INCL
213endif
214KFLAGS := -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING
215ifdef VBOX_REDHAT_KABI
216 KFLAGS += -DVBOX_REDHAT_KABI
217endif
218ifndef CONFIG_VBOXDRV_FIXEDMAJOR
219 KFLAGS += -DCONFIG_VBOXDRV_AS_MISC
220endif
221ifeq ($(BUILD_TARGET_ARCH),amd64)
222 KFLAGS += -DRT_ARCH_AMD64
223else
224 KFLAGS += -DRT_ARCH_X86
225endif
226# must be consistent with Config.kmk!
227KFLAGS += -DVBOX_WITH_64_BITS_GUESTS
228ifeq ($(BUILD_TYPE),debug)
229 KFLAGS += -DDEBUG -DDEBUG_$(USER) -g
230 # IPRT_DEBUG_SEMS indicates thread wrt sems state via the comm field.
231 KFLAGS += -DIPRT_DEBUG_SEMS
232endif
233
234# By default we use remap_pfn_range() kernel API to make kernel pages
235# visible for userland. Unfortuately, it leads to situation that
236# during debug session all structures on that page (such as PVM pointer)
237# are not accessible to the debugger (see #3214).
238# This code enables experimental support
239# for vm_insert_page() kernel API, allowing to export kernel pages
240# to the userland in more debugger-friendly way. Due to stability
241# concerns, not enabled by default yet.
242ifdef VBOX_USE_INSERT_PAGE
243 KFLAGS += -DVBOX_USE_INSERT_PAGE
244endif
245
246# 2.6 and later
247MODULE_EXT := ko
248$(MODULE)-y := $(OBJS)
249
250# build defs
251EXTRA_CFLAGS += $(INCL) $(KFLAGS) $(KDEBUG)
252
253all: $(MODULE)
254
255obj-m += $(MODULE).o
256
257$(MODULE):
258 $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) modules
259
260install: $(MODULE)
261 @mkdir -p $(MODULE_DIR); \
262 install -m 0664 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
263 PATH="$(PATH):/bin:/sbin" depmod -ae; \
264 rm -f /etc/vbox/module_not_compiled
265
266install_rpm: $(MODULE)
267 @mkdir -p $(MODULE_DIR); \
268 install -m 0664 $(MODULE).$(MODULE_EXT) $(MODULE_DIR)
269
270endif # eq($(MAKECMDGOALS),clean)
271
272clean:
273 for f in . linux r0drv r0drv/linux VBox common/err common/string common/log generic math/gcc; \
274 do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done
275 rm -rf .vboxdrv* .tmp_ver* vboxdrv.* Module.symvers Modules.symvers modules.order
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