xref: /dragonfly/sys/conf/kmod.mk (revision f746689a) 
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# NOMAN		KLD does not have a manual page if set.
29#
30# PROG          The name of the kernel module to build.
31#		If not supplied, ${KMOD}.o is used.
32#
33# SRCS          List of source files
34#
35# KMODDEPS	List of modules which this one is dependant on
36#
37# DESTKERNDIR	Change the tree where the kernel and the modules get
38#		installed. [/boot]  ${DESTDIR} changes the root of the tree
39#		pointed to by ${DESTKERNDIR}.
40#
41# MFILES	Optionally a list of interfaces used by the module.
42#		This file contains a default list of interfaces.
43#
44# +++ targets +++
45#
46# 	install:
47#               install the kernel module and its manual pages; if the Makefile
48#               does not itself define the target install, the targets
49#               beforeinstall and afterinstall may also be used to cause
50#               actions immediately before and after the install target
51#		is executed.
52#
53# 	load:
54#		Load KLD.
55#
56# 	unload:
57#		Unload KLD.
58#
59# bsd.obj.mk: clean, cleandir and obj
60# bsd.dep.mk: cleandepend, depend and tags
61# bsd.man.mk: maninstall
62#
63
64OBJCOPY?=	objcopy
65KMODLOAD?=	/sbin/kldload
66KMODUNLOAD?=	/sbin/kldunload
67
68KMODDIR?=	${DESTKERNDIR}/${DESTMODULESNAME}
69KMODOWN?=	${BINOWN}
70KMODGRP?=	${BINGRP}
71KMODMODE?=	${BINMODE}
72
73.include <bsd.init.mk>
74
75.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
76
77CFLAGS+=	${COPTS} -D_KERNEL ${CWARNFLAGS}
78CFLAGS+=	-DKLD_MODULE
79
80# Don't use any standard include directories.
81# Since -nostdinc will annull any previous -I paths, we repeat all
82# such paths after -nostdinc.  It doesn't seem to be possible to
83# add to the front of `make' variable.
84#
85# Don't use -I- anymore, source-relative includes are desireable.
86_ICFLAGS:=	${CFLAGS:M-I*}
87CFLAGS+=	-nostdinc ${_ICFLAGS}
88
89# Add -I paths for system headers.  Individual KLD makefiles don't
90# need any -I paths for this.  Similar defaults for .PATH can't be
91# set because there are no standard paths for non-headers.
92#
93# NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
94# must run through the "machine_base" softlink using
95# <machine_base/i386/blah.h>.  An explicit cross-architecture path must
96# operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
97#
98CFLAGS+=	-I. -I@
99
100# Add -I paths for headers in the kernel build directory
101#
102.if defined(BUILDING_WITH_KERNEL)
103CFLAGS+=	-I${BUILDING_WITH_KERNEL}
104_MACHINE_FWD=	${BUILDING_WITH_KERNEL}
105.else
106.if defined(MAKEOBJDIRPREFIX)
107_MACHINE_FWD=	${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
108.else
109_MACHINE_FWD=	${.OBJDIR}/forwarder_${MACHINE_ARCH}
110CLEANDIRS+=	${_MACHINE_FWD}
111.endif
112.endif
113CFLAGS+=	-I${_MACHINE_FWD}/include
114.include "kern.fwd.mk"
115
116# Add a -I path to standard headers like <stddef.h>.  Use a relative
117# path to src/include if possible.  If the @ symlink hasn't been built
118# yet, then we can't tell if the relative path exists.  Add both the
119# potential relative path and an absolute path in that case.
120.if exists(@)
121.if exists(@/../include)
122CFLAGS+=	-I@/../include
123.else
124CFLAGS+=	-I${DESTDIR}/usr/include
125.endif
126.else # !@
127CFLAGS+=	-I@/../include -I${DESTDIR}/usr/include
128.endif # @
129
130.if defined(BUILDING_WITH_KERNEL) && \
131    exists(${BUILDING_WITH_KERNEL}/opt_global.h)
132CFLAGS+=	-include ${BUILDING_WITH_KERNEL}/opt_global.h
133.endif
134
135CFLAGS+=	${DEBUG_FLAGS}
136.if ${MACHINE_ARCH} == amd64
137CFLAGS+=	-fno-omit-frame-pointer
138.endif
139
140.include <bsd.patch.mk>
141
142OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
143
144.if !defined(PROG)
145PROG=	${KMOD}.ko
146.endif
147
148.if ${MACHINE_ARCH} != amd64
149${PROG}: ${KMOD}.kld ${KMODDEPS}
150	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld ${KMODDEPS}
151.endif
152
153.if defined(KMODDEPS)
154.for dep in ${KMODDEPS}
155CLEANFILES+=	${dep} __${dep}_hack_dep.c
156
157${dep}:
158	touch __${dep}_hack_dep.c
159	${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
160.endfor
161.endif
162
163.if ${MACHINE_ARCH} != amd64
164${KMOD}.kld: ${OBJS}
165	${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
166.else
167${PROG}: ${OBJS}
168.endif
169
170.if !defined(NOMAN)
171.include <bsd.man.mk>
172.endif
173
174# links to platform and cpu architecture include files.  If we are
175# building with a kernel these already exist in the kernel build dir.
176# '@' is a link to the system source.
177.if defined(BUILDING_WITH_KERNEL)
178_ILINKS=@
179.else
180_ILINKS=@ machine_base machine cpu_base cpu
181.endif
182
183.if defined(ARCH)
184_ILINKS+=${ARCH}
185.endif
186
187all: objwarn fwheaders ${PROG}
188.if !defined(NOMAN)
189all: _manpages
190.endif
191
192beforedepend: fwheaders
193fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
194# Ensure that the links exist without depending on it when it exists which
195# causes all the modules to be rebuilt when the directory pointed to changes.
196.for _link in ${_ILINKS}
197.if !exists(${.OBJDIR}/${_link})
198${OBJS}: ${_link}
199.endif
200.endfor
201
202# Search for kernel source tree in standard places.
203.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
204.if !defined(SYSDIR) && exists(${_dir}/kern/)
205SYSDIR=	${_dir}
206.endif
207.endfor
208.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
209.error "can't find kernel source tree"
210.endif
211S=	${SYSDIR}
212
213#	path=`(cd $$path && /bin/pwd)` ;
214
215${_ILINKS}:
216	@case ${.TARGET} in \
217	machine) \
218		path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
219	machine_base) \
220		path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
221	cpu) \
222		path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
223	cpu_base) \
224		path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
225	@) \
226		path=${SYSDIR} ;; \
227	arch_*) \
228		path=${.CURDIR}/${MACHINE_ARCH} ;; \
229	esac ; \
230	${ECHO} ${.TARGET} "->" $$path ; \
231	${LN} -s $$path ${.TARGET}
232
233CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
234
235.if !target(install)
236
237_INSTALLFLAGS:=	${INSTALLFLAGS}
238.for ie in ${INSTALLFLAGS_EDIT}
239_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
240.endfor
241
242.if !target(realinstall)
243realinstall: _kmodinstall
244.ORDER: beforeinstall _kmodinstall
245_kmodinstall:
246.if defined(INSTALLSTRIPPEDMODULES)
247	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
248	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
249	${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
250.else
251	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
252	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
253.endif
254.endif # !target(realinstall)
255
256.include <bsd.links.mk>
257
258.if !defined(NOMAN)
259realinstall: _maninstall
260.ORDER: beforeinstall _maninstall
261.endif
262
263.endif # !target(install)
264
265.if !target(load)
266load:	${PROG}
267	${KMODLOAD} -v ./${KMOD}.ko
268.endif
269
270.if !target(unload)
271unload:
272	${KMODUNLOAD} -v ${KMOD}
273.endif
274
275.for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
276CLEANFILES+=	${_src}
277.if !target(${_src})
278.if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
279${_src}: ${BUILDING_WITH_KERNEL}/${_src}
280# we do not have to copy these files any more, the kernel build
281# directory is included in the path now.
282#	cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
283.else
284${_src}:
285	touch ${.TARGET}
286.endif	# BUILDING_WITH_KERNEL
287.endif
288.endfor
289
290MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
291    bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
292    bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
293    bus/pci/pcib_if.m \
294    bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
295    dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
296    dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
297    dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
298    libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/crypto_if.m
299
300.for _srcsrc in ${MFILES}
301.for _ext in c h
302.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
303CLEANFILES+=	${_src}
304.if !target(${_src})
305${_src}: @
306.if exists(@)
307${_src}: @/tools/makeobjops.awk @/${_srcsrc}
308.endif
309
310.if defined(BUILDING_WITH_KERNEL) && \
311    exists(${BUILDING_WITH_KERNEL}/${_src})
312.else
313	awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
314.endif
315.endif
316.endfor # _src
317.endfor # _ext
318.endfor # _srcsrc
319
320#.for _ext in c h
321#.if ${SRCS:Mvnode_if.${_ext}} != ""
322#CLEANFILES+=	vnode_if.${_ext}
323#vnode_if.${_ext}: @
324#.if exists(@)
325#vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
326#.endif
327#	awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
328#.endif
329#.endfor
330
331regress:
332
333.include <bsd.dep.mk>
334
335.if !exists(${DEPENDFILE})
336${OBJS}: ${SRCS:M*.h}
337.endif
338
339.include <bsd.obj.mk>
340.include "bsd.kern.mk"
341
342# Behaves like MODULE_OVERRIDE
343.if defined(KLD_DEPS)
344all: _kdeps_all
345_kdeps_all: @
346.for _mdep in ${KLD_DEPS}
347	cd ${SYSDIR}/${_mdep} && make all
348.endfor
349depend: _kdeps_depend
350_kdeps_depend: @
351.for _mdep in ${KLD_DEPS}
352	cd ${SYSDIR}/${_mdep} && make depend
353.endfor
354install: _kdeps_install
355_kdeps_install: @
356.for _mdep in ${KLD_DEPS}
357	cd ${SYSDIR}/${_mdep} && make install
358.endfor
359clean: _kdeps_clean
360_kdeps_clean: @
361.for _mdep in ${KLD_DEPS}
362	cd ${SYSDIR}/${_mdep} && make clean
363.endfor
364.endif
365