xref: /dragonfly/sys/conf/kmod.mk (revision 49781055) 
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 1.24 2006/02/15 17:13:33 corecode 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)). [/modules]
16#
17# KMODOWN	KLD owner. [${BINOWN}]
18#
19# KMODGRP	KLD group. [${BINGRP}]
20#
21# KMODMODE	KLD mode. [${BINMODE}]
22#
23# KMODLOAD	Command to load a kernel module [/sbin/kldload]
24#
25# KMODUNLOAD	Command to unload a kernel module [/sbin/kldunload]
26#
27# NOMAN		KLD does not have a manual page if set.
28#
29# PROG          The name of the kernel module to build.
30#		If not supplied, ${KMOD}.o is used.
31#
32# SRCS          List of source files
33#
34# KMODDEPS	List of modules which this one is dependant on
35#
36# DESTDIR	Change the tree where the module gets installed. [not set]
37#
38# MFILES	Optionally a list of interfaces used by the module.
39#		This file contains a default list of interfaces.
40#
41# +++ targets +++
42#
43# 	install:
44#               install the kernel module and its manual pages; if the Makefile
45#               does not itself define the target install, the targets
46#               beforeinstall and afterinstall may also be used to cause
47#               actions immediately before and after the install target
48#		is executed.
49#
50# 	load:
51#		Load KLD.
52#
53# 	unload:
54#		Unload KLD.
55#
56# bsd.obj.mk: clean, cleandir and obj
57# bsd.dep.mk: cleandepend, depend and tags
58# bsd.man.mk: maninstall
59#
60
61OBJCOPY?=	objcopy
62KMODLOAD?=	/sbin/kldload
63KMODUNLOAD?=	/sbin/kldunload
64
65.include <bsd.init.mk>
66
67.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
68
69CFLAGS+=	${COPTS} -D_KERNEL ${CWARNFLAGS}
70CFLAGS+=	-DKLD_MODULE
71
72# Don't use any standard include directories.
73# Since -nostdinc will annull any previous -I paths, we repeat all
74# such paths after -nostdinc.  It doesn't seem to be possible to
75# add to the front of `make' variable.
76#
77# Don't use -I- anymore, source-relative includes are desireable.
78_ICFLAGS:=	${CFLAGS:M-I*}
79CFLAGS+=	-nostdinc ${_ICFLAGS}
80
81# Add -I paths for system headers.  Individual KLD makefiles don't
82# need any -I paths for this.  Similar defaults for .PATH can't be
83# set because there are no standard paths for non-headers.
84CFLAGS+=	-I. -I@
85
86# Add a -I path to standard headers like <stddef.h>.  Use a relative
87# path to src/include if possible.  If the @ symlink hasn't been built
88# yet, then we can't tell if the relative path exists.  Add both the
89# potential relative path and an absolute path in that case.
90.if exists(@)
91.if exists(@/../include)
92CFLAGS+=	-I@/../include
93.else
94CFLAGS+=	-I${DESTDIR}/usr/include
95.endif
96.else # !@
97CFLAGS+=	-I@/../include -I${DESTDIR}/usr/include
98.endif # @
99
100.if defined(BUILDING_WITH_KERNEL) && \
101    exists(${BUILDING_WITH_KERNEL}/opt_global.h)
102CFLAGS+=	-include ${BUILDING_WITH_KERNEL}/opt_global.h
103.endif
104
105CFLAGS+=	${DEBUG_FLAGS}
106
107.include <bsd.patch.mk>
108
109OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
110
111.if !defined(PROG)
112PROG=	${KMOD}.ko
113.endif
114
115${PROG}: ${KMOD}.kld ${KMODDEPS}
116	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld ${KMODDEPS}
117
118.if defined(KMODDEPS)
119.for dep in ${KMODDEPS}
120CLEANFILES+=	${dep} __${dep}_hack_dep.c
121
122${dep}:
123	touch __${dep}_hack_dep.c
124	${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
125.endfor
126.endif
127
128${KMOD}.kld: ${OBJS}
129	${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
130
131.if !defined(NOMAN)
132.include <bsd.man.mk>
133.endif
134
135_ILINKS=@ arch machine
136.if defined(ARCH)
137_ILINKS+=${ARCH}
138.endif
139
140all: objwarn ${PROG}
141.if !defined(NOMAN)
142all: _manpages
143.endif
144
145beforedepend: ${_ILINKS}
146# Ensure that the links exist without depending on it when it exists which
147# causes all the modules to be rebuilt when the directory pointed to changes.
148.for _link in ${_ILINKS}
149.if !exists(${.OBJDIR}/${_link})
150${OBJS}: ${_link}
151.endif
152.endfor
153
154# Search for kernel source tree in standard places.
155.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
156.if !defined(SYSDIR) && exists(${_dir}/kern/)
157SYSDIR=	${_dir}
158.endif
159.endfor
160.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
161.error "can't find kernel source tree"
162.endif
163
164#	path=`(cd $$path && /bin/pwd)` ;
165
166${_ILINKS}:
167	@case ${.TARGET} in \
168	arch) \
169		path=${SYSDIR}/${MACHINE_ARCH} ;; \
170	machine) \
171		path=${SYSDIR}/${MACHINE_ARCH}/include ;; \
172	@) \
173		path=${SYSDIR} ;; \
174	arch_*) \
175		path=${.CURDIR}/${MACHINE_ARCH} ;; \
176	esac ; \
177	${ECHO} ${.TARGET} "->" $$path ; \
178	${LN} -s $$path ${.TARGET}
179
180CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
181
182.if !target(install)
183
184_INSTALLFLAGS:=	${INSTALLFLAGS}
185.for ie in ${INSTALLFLAGS_EDIT}
186_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
187.endfor
188
189.if !target(realinstall)
190realinstall: _kmodinstall
191.ORDER: beforeinstall _kmodinstall
192_kmodinstall:
193.if defined(INSTALLSTRIPPEDMODULES)
194	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
195	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
196	${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
197.else
198	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
199	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
200.endif
201.endif # !target(realinstall)
202
203.include <bsd.links.mk>
204
205.if !defined(NOMAN)
206realinstall: _maninstall
207.ORDER: beforeinstall _maninstall
208.endif
209
210.endif # !target(install)
211
212.if !target(load)
213load:	${PROG}
214	${KMODLOAD} -v ./${KMOD}.ko
215.endif
216
217.if !target(unload)
218unload:
219	${KMODUNLOAD} -v ${KMOD}
220.endif
221
222.for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
223CLEANFILES+=	${_src}
224.if !target(${_src})
225.if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
226${_src}: ${BUILDING_WITH_KERNEL}/${_src}
227	cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
228.else
229${_src}:
230	touch ${.TARGET}
231.endif	# BUILDING_WITH_KERNEL
232.endif
233.endfor
234
235MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
236    bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
237    bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
238    bus/pci/pcib_if.m \
239    bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
240    dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
241    dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
242    libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/crypto_if.m
243
244.for _srcsrc in ${MFILES}
245.for _ext in c h
246.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
247CLEANFILES+=	${_src}
248.if !target(${_src})
249${_src}: @
250.if exists(@)
251${_src}: @/tools/makeobjops.awk @/${_srcsrc}
252.endif
253	awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
254.endif
255.endfor # _src
256.endfor # _ext
257.endfor # _srcsrc
258
259#.for _ext in c h
260#.if ${SRCS:Mvnode_if.${_ext}} != ""
261#CLEANFILES+=	vnode_if.${_ext}
262#vnode_if.${_ext}: @
263#.if exists(@)
264#vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
265#.endif
266#	awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
267#.endif
268#.endfor
269
270regress:
271
272.include <bsd.dep.mk>
273
274.if !exists(${DEPENDFILE})
275${OBJS}: ${SRCS:M*.h}
276.endif
277
278.include <bsd.obj.mk>
279.include "bsd.kern.mk"
280
281# Behaves like MODULE_OVERRIDE
282.if defined(KLD_DEPS)
283all: _kdeps_all
284_kdeps_all: @
285.for _mdep in ${KLD_DEPS}
286	cd ${SYSDIR}/${_mdep} && make all
287.endfor
288depend: _kdeps_depend
289_kdeps_depend: @
290.for _mdep in ${KLD_DEPS}
291	cd ${SYSDIR}/${_mdep} && make depend
292.endfor
293install: _kdeps_install
294_kdeps_install: @
295.for _mdep in ${KLD_DEPS}
296	cd ${SYSDIR}/${_mdep} && make install
297.endfor
298clean: _kdeps_clean
299_kdeps_clean: @
300.for _mdep in ${KLD_DEPS}
301	cd ${SYSDIR}/${_mdep} && make clean
302.endfor
303.endif
304