xref: /dragonfly/sys/conf/kmod.mk (revision 23265324) 
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 1.32 2007/01/19 07:23:42 dillon 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 ${_ICFLAGS}
80
81# Add -I paths for system headers.  Individual KLD makefiles don't
82# need any -I paths for this.  Similar defaults for .PATH can't be
83# set because there are no standard paths for non-headers.
84#
85# NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
86# must run through the "machine_base" softlink using
87# <machine_base/i386/blah.h>.  An explicit cross-architecture path must
88# operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
89#
90CFLAGS+=	-I. -I@
91
92# Add -I paths for headers in the kernel build directory
93#
94.if defined(BUILDING_WITH_KERNEL)
95CFLAGS+=	-I${BUILDING_WITH_KERNEL}
96_MACHINE_FWD=	${BUILDING_WITH_KERNEL}
97.else
98.if defined(MAKEOBJDIRPREFIX)
99_MACHINE_FWD=	${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
100.else
101_MACHINE_FWD=	${.OBJDIR}/forwarder_${MACHINE_ARCH}
102CLEANDIRS+=	${_MACHINE_FWD}
103.endif
104.endif
105CFLAGS+=	-I${_MACHINE_FWD}/include
106.include "kern.fwd.mk"
107
108# Add a -I path to standard headers like <stddef.h>.  Use a relative
109# path to src/include if possible.  If the @ symlink hasn't been built
110# yet, then we can't tell if the relative path exists.  Add both the
111# potential relative path and an absolute path in that case.
112.if exists(@)
113.if exists(@/../include)
114CFLAGS+=	-I@/../include
115.else
116CFLAGS+=	-I${DESTDIR}/usr/include
117.endif
118.else # !@
119CFLAGS+=	-I@/../include -I${DESTDIR}/usr/include
120.endif # @
121
122.if defined(BUILDING_WITH_KERNEL) && \
123    exists(${BUILDING_WITH_KERNEL}/opt_global.h)
124CFLAGS+=	-include ${BUILDING_WITH_KERNEL}/opt_global.h
125.endif
126
127CFLAGS+=	${DEBUG_FLAGS}
128
129.include <bsd.patch.mk>
130
131OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
132
133.if !defined(PROG)
134PROG=	${KMOD}.ko
135.endif
136
137${PROG}: ${KMOD}.kld ${KMODDEPS}
138	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld ${KMODDEPS}
139
140.if defined(KMODDEPS)
141.for dep in ${KMODDEPS}
142CLEANFILES+=	${dep} __${dep}_hack_dep.c
143
144${dep}:
145	touch __${dep}_hack_dep.c
146	${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
147.endfor
148.endif
149
150${KMOD}.kld: ${OBJS}
151	${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
152
153.if !defined(NOMAN)
154.include <bsd.man.mk>
155.endif
156
157# links to platform and cpu architecture include files.  If we are
158# building with a kernel these already exist in the kernel build dir.
159# '@' is a link to the system source.
160.if defined(BUILDING_WITH_KERNEL)
161_ILINKS=@
162.else
163_ILINKS=@ machine_base machine cpu_base cpu
164.endif
165
166.if defined(ARCH)
167_ILINKS+=${ARCH}
168.endif
169
170all: objwarn ${PROG}
171.if !defined(NOMAN)
172all: _manpages
173.endif
174
175beforedepend: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
176# Ensure that the links exist without depending on it when it exists which
177# causes all the modules to be rebuilt when the directory pointed to changes.
178.for _link in ${_ILINKS}
179.if !exists(${.OBJDIR}/${_link})
180${OBJS}: ${_link}
181.endif
182.endfor
183
184# Search for kernel source tree in standard places.
185.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
186.if !defined(SYSDIR) && exists(${_dir}/kern/)
187SYSDIR=	${_dir}
188.endif
189.endfor
190.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
191.error "can't find kernel source tree"
192.endif
193S=	${SYSDIR}
194
195#	path=`(cd $$path && /bin/pwd)` ;
196
197${_ILINKS}:
198	@case ${.TARGET} in \
199	machine) \
200		path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
201	machine_base) \
202		path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
203	cpu) \
204		path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
205	cpu_base) \
206		path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
207	@) \
208		path=${SYSDIR} ;; \
209	arch_*) \
210		path=${.CURDIR}/${MACHINE_ARCH} ;; \
211	esac ; \
212	${ECHO} ${.TARGET} "->" $$path ; \
213	${LN} -s $$path ${.TARGET}
214
215CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
216
217.if !target(install)
218
219_INSTALLFLAGS:=	${INSTALLFLAGS}
220.for ie in ${INSTALLFLAGS_EDIT}
221_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
222.endfor
223
224.if !target(realinstall)
225realinstall: _kmodinstall
226.ORDER: beforeinstall _kmodinstall
227_kmodinstall:
228.if defined(INSTALLSTRIPPEDMODULES)
229	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
230	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
231	${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
232.else
233	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
234	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
235.endif
236.endif # !target(realinstall)
237
238.include <bsd.links.mk>
239
240.if !defined(NOMAN)
241realinstall: _maninstall
242.ORDER: beforeinstall _maninstall
243.endif
244
245.endif # !target(install)
246
247.if !target(load)
248load:	${PROG}
249	${KMODLOAD} -v ./${KMOD}.ko
250.endif
251
252.if !target(unload)
253unload:
254	${KMODUNLOAD} -v ${KMOD}
255.endif
256
257.for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
258CLEANFILES+=	${_src}
259.if !target(${_src})
260.if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
261${_src}: ${BUILDING_WITH_KERNEL}/${_src}
262# we do not have to copy these files any more, the kernel build
263# directory is included in the path now.
264#	cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
265.else
266${_src}:
267	touch ${.TARGET}
268.endif	# BUILDING_WITH_KERNEL
269.endif
270.endfor
271
272MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
273    bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
274    bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
275    bus/pci/pcib_if.m \
276    bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
277    dev/disk/nata/ata_if.m \
278    dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
279    dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
280    libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/crypto_if.m
281
282.for _srcsrc in ${MFILES}
283.for _ext in c h
284.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
285CLEANFILES+=	${_src}
286.if !target(${_src})
287${_src}: @
288.if exists(@)
289${_src}: @/tools/makeobjops.awk @/${_srcsrc}
290.endif
291
292.if defined(BUILDING_WITH_KERNEL) && \
293    exists(${BUILDING_WITH_KERNEL}/${_src})
294.else
295	awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
296.endif
297.endif
298.endfor # _src
299.endfor # _ext
300.endfor # _srcsrc
301
302#.for _ext in c h
303#.if ${SRCS:Mvnode_if.${_ext}} != ""
304#CLEANFILES+=	vnode_if.${_ext}
305#vnode_if.${_ext}: @
306#.if exists(@)
307#vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
308#.endif
309#	awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
310#.endif
311#.endfor
312
313regress:
314
315.include <bsd.dep.mk>
316
317.if !exists(${DEPENDFILE})
318${OBJS}: ${SRCS:M*.h}
319.endif
320
321.include <bsd.obj.mk>
322.include "bsd.kern.mk"
323
324# Behaves like MODULE_OVERRIDE
325.if defined(KLD_DEPS)
326all: _kdeps_all
327_kdeps_all: @
328.for _mdep in ${KLD_DEPS}
329	cd ${SYSDIR}/${_mdep} && make all
330.endfor
331depend: _kdeps_depend
332_kdeps_depend: @
333.for _mdep in ${KLD_DEPS}
334	cd ${SYSDIR}/${_mdep} && make depend
335.endfor
336install: _kdeps_install
337_kdeps_install: @
338.for _mdep in ${KLD_DEPS}
339	cd ${SYSDIR}/${_mdep} && make install
340.endfor
341clean: _kdeps_clean
342_kdeps_clean: @
343.for _mdep in ${KLD_DEPS}
344	cd ${SYSDIR}/${_mdep} && make clean
345.endfor
346.endif
347