xref: /dragonfly/sys/conf/kmod.mk (revision a68e0df0) 
1#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
2# $FreeBSD: src/sys/conf/kmod.mk,v 1.82.2.15 2003/02/10 13:11:50 nyan Exp $
3# $DragonFly: src/sys/conf/kmod.mk,v 1.35 2008/08/27 16:35:19 hasso Exp $
4#
5# The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
6# drivers (KLD's).
7#
8#
9# +++ variables +++
10#
11# CLEANFILES	Additional files to remove for the clean and cleandir targets.
12#
13# KMOD          The name of the kernel module to build.
14#
15# KMODDIR	Base path for kernel modules (see kld(4)).
16#		[${DESTKERNDIR}/${DESTMODULESNAME}]
17#
18# KMODOWN	KLD owner. [${BINOWN}]
19#
20# KMODGRP	KLD group. [${BINGRP}]
21#
22# KMODMODE	KLD mode. [${BINMODE}]
23#
24# KMODLOAD	Command to load a kernel module [/sbin/kldload]
25#
26# KMODUNLOAD	Command to unload a kernel module [/sbin/kldunload]
27#
28# PROG          The name of the kernel module to build.
29#		If not supplied, ${KMOD}.o is used.
30#
31# SRCS          List of source files
32#
33# DESTKERNDIR	Change the tree where the kernel and the modules get
34#		installed. [/boot]  ${DESTDIR} changes the root of the tree
35#		pointed to by ${DESTKERNDIR}.
36#
37# MFILES	Optionally a list of interfaces used by the module.
38#		This file contains a default list of interfaces.
39#
40# +++ targets +++
41#
42# 	install:
43#               install the kernel module and its manual pages; if the Makefile
44#               does not itself define the target install, the targets
45#               beforeinstall and afterinstall may also be used to cause
46#               actions immediately before and after the install target
47#		is executed.
48#
49# 	load:
50#		Load KLD.
51#
52# 	unload:
53#		Unload KLD.
54#
55# bsd.obj.mk: clean, cleandir and obj
56# bsd.dep.mk: cleandepend, depend and tags
57#
58
59OBJCOPY?=	objcopy
60KMODLOAD?=	/sbin/kldload
61KMODUNLOAD?=	/sbin/kldunload
62
63KMODDIR?=	${DESTKERNDIR}/${DESTMODULESNAME}
64KMODOWN?=	${BINOWN}
65KMODGRP?=	${BINGRP}
66KMODMODE?=	${BINMODE}
67
68.include <bsd.init.mk>
69
70.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
71
72CFLAGS+=	${COPTS} -D_KERNEL ${CWARNFLAGS}
73CFLAGS+=	-DKLD_MODULE
74
75# Don't use any standard include directories.
76# Since -nostdinc will annull any previous -I paths, we repeat all
77# such paths after -nostdinc.  It doesn't seem to be possible to
78# add to the front of `make' variable.
79#
80# Don't use -I- anymore, source-relative includes are desireable.
81_ICFLAGS:=	${CFLAGS:M-I*}
82CFLAGS+=	-nostdinc ${_ICFLAGS}
83
84# Add -I paths for system headers.  Individual KLD makefiles don't
85# need any -I paths for this.  Similar defaults for .PATH can't be
86# set because there are no standard paths for non-headers.
87#
88# NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
89# must run through the "machine_base" softlink using
90# <machine_base/i386/blah.h>.  An explicit cross-architecture path must
91# operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
92#
93CFLAGS+=	-I. -I@
94
95# Add -I paths for headers in the kernel build directory
96#
97.if defined(BUILDING_WITH_KERNEL)
98CFLAGS+=	-I${BUILDING_WITH_KERNEL}
99_MACHINE_FWD=	${BUILDING_WITH_KERNEL}
100.else
101.if defined(MAKEOBJDIRPREFIX)
102_MACHINE_FWD=	${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
103.else
104_MACHINE_FWD=	${.OBJDIR}/forwarder_${MACHINE_ARCH}
105CLEANDIRS+=	${_MACHINE_FWD}
106.endif
107.endif
108CFLAGS+=	-I${_MACHINE_FWD}/include
109.include "kern.fwd.mk"
110
111# Add a -I path to standard headers like <stddef.h>.  Use a relative
112# path to src/include if possible.  If the @ symlink hasn't been built
113# yet, then we can't tell if the relative path exists.  Add both the
114# potential relative path and an absolute path in that case.
115.if exists(@)
116.if exists(@/../include)
117CFLAGS+=	-I@/../include
118.else
119CFLAGS+=	-I${DESTDIR}/usr/include
120.endif
121.else # !@
122CFLAGS+=	-I@/../include -I${DESTDIR}/usr/include
123.endif # @
124
125.if defined(BUILDING_WITH_KERNEL) && \
126    exists(${BUILDING_WITH_KERNEL}/opt_global.h)
127CFLAGS+=	-include ${BUILDING_WITH_KERNEL}/opt_global.h
128.endif
129
130CFLAGS+=	${DEBUG_FLAGS}
131.if ${MACHINE_ARCH} == x86_64
132CFLAGS+=	-fno-omit-frame-pointer
133.endif
134
135.include <bsd.patch.mk>
136
137OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
138
139.if !defined(PROG)
140PROG=	${KMOD}.ko
141.endif
142
143.if ${MACHINE_ARCH} != x86_64
144${PROG}: ${KMOD}.kld
145	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
146.endif
147
148.if ${MACHINE_ARCH} != x86_64
149${KMOD}.kld: ${OBJS}
150	${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
151.else
152${PROG}: ${OBJS}
153	${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
154.endif
155
156# links to platform and cpu architecture include files.  If we are
157# building with a kernel these already exist in the kernel build dir.
158# '@' is a link to the system source.
159.if defined(BUILDING_WITH_KERNEL)
160_ILINKS=@
161.else
162_ILINKS=@ machine_base machine cpu_base cpu
163.endif
164
165.if defined(ARCH)
166_ILINKS+=${ARCH}
167.endif
168
169all: objwarn fwheaders ${PROG}
170
171beforedepend: fwheaders
172fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
173# Ensure that the links exist without depending on it when it exists which
174# causes all the modules to be rebuilt when the directory pointed to changes.
175.for _link in ${_ILINKS}
176.if !exists(${.OBJDIR}/${_link})
177${OBJS}: ${_link}
178.endif
179.endfor
180
181# Search for kernel source tree in standard places.
182.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
183.if !defined(SYSDIR) && exists(${_dir}/kern/)
184SYSDIR=	${_dir}
185.endif
186.endfor
187.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
188.error "can't find kernel source tree"
189.endif
190S=	${SYSDIR}
191
192#	path=`(cd $$path && /bin/pwd)` ;
193
194${_ILINKS}:
195	@case ${.TARGET} in \
196	machine) \
197		path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
198	machine_base) \
199		path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
200	cpu) \
201		path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
202	cpu_base) \
203		path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
204	@) \
205		path=${SYSDIR} ;; \
206	arch_*) \
207		path=${.CURDIR}/${MACHINE_ARCH} ;; \
208	esac ; \
209	${ECHO} ${.TARGET} "->" $$path ; \
210	${LN} -s $$path ${.TARGET}
211
212CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
213
214.if !target(install)
215
216_INSTALLFLAGS:=	${INSTALLFLAGS}
217.for ie in ${INSTALLFLAGS_EDIT}
218_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
219.endfor
220
221.if !target(realinstall)
222realinstall: _kmodinstall
223.ORDER: beforeinstall _kmodinstall
224_kmodinstall:
225.if defined(INSTALLSTRIPPEDMODULES)
226	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
227	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
228	${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
229.else
230	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
231	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
232.endif
233.endif # !target(realinstall)
234
235.include <bsd.links.mk>
236
237.endif # !target(install)
238
239.if !target(load)
240load:	${PROG}
241	${KMODLOAD} -v ./${KMOD}.ko
242.endif
243
244.if !target(unload)
245unload:
246	${KMODUNLOAD} -v ${KMOD}
247.endif
248
249.for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
250CLEANFILES+=	${_src}
251.if !target(${_src})
252.if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
253${_src}: ${BUILDING_WITH_KERNEL}/${_src}
254# we do not have to copy these files any more, the kernel build
255# directory is included in the path now.
256#	cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
257.else
258${_src}:
259	touch ${.TARGET}
260.endif	# BUILDING_WITH_KERNEL
261.endif
262.endfor
263
264MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
265    bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
266    bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
267    bus/pci/pcib_if.m \
268    bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
269    dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
270    dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
271    dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
272    libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/cryptodev_if.m
273
274.for _srcsrc in ${MFILES}
275.for _ext in c h
276.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
277CLEANFILES+=	${_src}
278.if !target(${_src})
279${_src}: @
280.if exists(@)
281${_src}: @/tools/makeobjops.awk @/${_srcsrc}
282.endif
283
284.if defined(BUILDING_WITH_KERNEL) && \
285    exists(${BUILDING_WITH_KERNEL}/${_src})
286.else
287	awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
288.endif
289.endif
290.endfor # _src
291.endfor # _ext
292.endfor # _srcsrc
293
294#.for _ext in c h
295#.if ${SRCS:Mvnode_if.${_ext}} != ""
296#CLEANFILES+=	vnode_if.${_ext}
297#vnode_if.${_ext}: @
298#.if exists(@)
299#vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
300#.endif
301#	awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
302#.endif
303#.endfor
304
305regress:
306
307.include <bsd.dep.mk>
308
309.if !exists(${DEPENDFILE})
310${OBJS}: ${SRCS:M*.h}
311.endif
312
313.include <bsd.obj.mk>
314.include "bsd.kern.mk"
315
316# Behaves like MODULE_OVERRIDE
317.if defined(KLD_DEPS)
318all: _kdeps_all
319_kdeps_all: @
320.for _mdep in ${KLD_DEPS}
321	cd ${SYSDIR}/${_mdep} && make all
322.endfor
323depend: _kdeps_depend
324_kdeps_depend: @
325.for _mdep in ${KLD_DEPS}
326	cd ${SYSDIR}/${_mdep} && make depend
327.endfor
328install: _kdeps_install
329_kdeps_install: @
330.for _mdep in ${KLD_DEPS}
331	cd ${SYSDIR}/${_mdep} && make install
332.endfor
333clean: _kdeps_clean
334_kdeps_clean: @
335.for _mdep in ${KLD_DEPS}
336	cd ${SYSDIR}/${_mdep} && make clean
337.endfor
338.endif
339