kmod.mk revision 56464 
1#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
2# $FreeBSD: head/sys/conf/kmod.mk 56464 2000-01-23 15:42:44Z peter $
3#
4# The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
5# drivers (KLD's).
6#
7#
8# +++ variables +++
9#
10# CLEANFILES	Additional files to remove for the clean and cleandir targets.
11#
12# DISTRIBUTION  Name of distribution. [bin]
13#
14# KERN		Main Kernel source directory. [${.CURDIR}/../../sys/kern]
15#
16# KMOD          The name of the kernel module to build.
17#
18# KMODDIR	Base path for kernel modules (see kld(4)). [/modules]
19#
20# KMODOWN	KLD owner. [${BINOWN}]
21#
22# KMODGRP	KLD group. [${BINGRP}]
23#
24# KMODMODE	KLD mode. [${BINMODE}]
25#
26# LINKS		The list of KLD links; should be full pathnames, the
27#               linked-to file coming first, followed by the linked
28#               file.  The files are hard-linked.  For example, to link
29#               /modules/master and /modules/meister, use:
30#
31#			LINKS=  /modules/master /modules/meister
32#
33# KMODLOAD	Command to load a kernel module [/sbin/kldload]
34#
35# KMODUNLOAD	Command to unload a kernel module [/sbin/kldunload]
36#
37# NOMAN		KLD does not have a manual page if set.
38#
39# PROG          The name of the kernel module to build. 
40#		If not supplied, ${KMOD}.o is used.
41#
42# SRCS          List of source files 
43#
44# KMODDEPS	List of modules which this one is dependant on
45#
46# SUBDIR        A list of subdirectories that should be built as well.
47#               Each of the targets will execute the same target in the
48#               subdirectories.
49#
50# SYMLINKS	Same as LINKS, except it creates symlinks and the
51#		linked-to pathname may be relative.
52#
53# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
54#
55#
56# +++ targets +++
57#
58#       distribute:
59#               This is a variant of install, which will
60#               put the stuff into the right "distribution".
61#
62# 	install:
63#               install the program and its manual pages; if the Makefile
64#               does not itself define the target install, the targets
65#               beforeinstall and afterinstall may also be used to cause
66#               actions immediately before and after the install target
67#		is executed.
68#
69# 	load:	
70#		Load KLD.
71#
72# 	unload:
73#		Unload KLD.
74#
75# bsd.obj.mk: clean, cleandir and obj
76# bsd.dep.mk: cleandepend, depend and tags
77# bsd.man.mk: maninstall
78#
79
80KMODLOAD?=	/sbin/kldload
81KMODUNLOAD?=	/sbin/kldunload
82
83.if !target(__initialized__)
84__initialized__:
85.if exists(${.CURDIR}/../Makefile.inc)
86.include "${.CURDIR}/../Makefile.inc"
87.endif
88.endif
89
90.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
91
92CFLAGS+=	${COPTS} -D_KERNEL ${CWARNFLAGS}
93CFLAGS+=	-DKLD_MODULE
94
95# Don't use any standard or source-relative include directories.
96# Since -nostdinc will annull any previous -I paths, we repeat all
97# such paths after -nostdinc.  It doesn't seem to be possible to
98# add to the front of `make' variable.
99_ICFLAGS:=	${CFLAGS:M-I*}
100CFLAGS+=	-nostdinc -I- ${_ICFLAGS}
101
102# Add -I paths for system headers.  Individual KLD makefiles don't
103# need any -I paths for this.  Similar defaults for .PATH can't be
104# set because there are no standard paths for non-headers.
105CFLAGS+=	-I. -I@
106
107# Add a -I path to standard headers like <stddef.h>.  Use a relative
108# path to src/include if possible.  If the @ symlink hasn't been built
109# yet, then we can't tell if the relative path exists.  Add both the
110# potential relative path and an absolute path in that case.
111.if exists(@)
112.if exists(@/../include)
113CFLAGS+=	-I@/../include
114.else
115CFLAGS+=	-I${DESTDIR}/usr/include
116.endif
117.else # !@
118CFLAGS+=	-I@/../include -I${DESTDIR}/usr/include
119.endif # @
120
121.if ${OBJFORMAT} == elf
122CLEANFILES+=	setdef0.c setdef1.c setdefs.h
123CLEANFILES+=	setdef0.o setdef1.o
124.endif
125
126OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
127
128.if !defined(PROG)
129PROG=	${KMOD}.ko
130.endif
131
132${PROG}: ${OBJS} ${DPADD} ${KMODDEPS}
133.if ${OBJFORMAT} == elf
134	gensetdefs ${OBJS}
135	${CC} ${CFLAGS} -c setdef0.c
136	${CC} ${CFLAGS} -c setdef1.c
137	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} setdef0.o ${OBJS} setdef1.o  ${KMODDEPS}
138.else
139	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${OBJS} ${KMODDEPS}
140.endif
141
142.if defined(KMODDEPS)
143.for dep in ${KMODDEPS}
144CLEANFILES+=	${dep} __${dep}_hack_dep.c
145
146${dep}:
147	touch __${dep}_hack_dep.c
148	${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
149.endfor
150.endif
151
152.if !defined(NOMAN)
153.include <bsd.man.mk>
154.if !defined(_MANPAGES) || empty(_MANPAGES)
155MAN1=	${KMOD}.4
156.endif
157
158.elif !target(maninstall)
159maninstall: _SUBDIR
160all-man:
161.endif
162
163_ILINKS=@ machine
164
165.MAIN: all
166all: objwarn ${PROG} all-man _SUBDIR
167
168beforedepend ${OBJS}: ${_ILINKS}
169
170# The search for the link targets works best if we are in a normal src
171# tree, and not too deeply below src/sys/modules.  If we are near "/", then
172# we may find /sys - this is harmless.  Other abnormal "sys" directories
173# found in the search are likely to cause problems.  If nothing is found,
174# then the links default to /usr/include and /usr/include/machine.
175${_ILINKS}:
176	@set +x; for up in ../.. ../../.. ; do \
177		case ${.TARGET} in \
178		machine) \
179			testpath=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
180			path=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
181			defaultpath=/usr/include/machine ;; \
182		@) \
183			testpath=${.CURDIR}/$$up/sys ; \
184			path=${.CURDIR}/$$up ; \
185			defaultpath=/usr/include ;; \
186		esac ; \
187		if [ -d $$testpath ] ; then break ; fi ; \
188		path=$$defaultpath ; \
189	done ; \
190	path=`(cd $$path && /bin/pwd)` ; \
191	${ECHO} ${.TARGET} "->" $$path ; \
192	ln -s $$path ${.TARGET}
193
194CLEANFILES+= ${PROG} ${OBJS} ${_ILINKS} symb.tmp tmp.o
195
196.if !target(install)
197.if !target(beforeinstall)
198beforeinstall:
199.endif
200.if !target(afterinstall)
201afterinstall:
202.endif
203
204_INSTALLFLAGS:=	${INSTALLFLAGS}
205.for ie in ${INSTALLFLAGS_EDIT}
206_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
207.endfor
208
209realinstall: _SUBDIR
210	${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
211	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
212.if defined(LINKS) && !empty(LINKS)
213	@set ${LINKS}; \
214	while test $$# -ge 2; do \
215		l=${DESTDIR}$$1; \
216		shift; \
217		t=${DESTDIR}$$1; \
218		shift; \
219		${ECHO} $$t -\> $$l; \
220		ln -f $$l $$t; \
221	done; true
222.endif
223.if defined(SYMLINKS) && !empty(SYMLINKS)
224	@set ${SYMLINKS}; \
225	while test $$# -ge 2; do \
226		l=$$1; \
227		shift; \
228		t=${DESTDIR}$$1; \
229		shift; \
230		${ECHO} $$t -\> $$l; \
231		ln -fs $$l $$t; \
232	done; true
233.endif
234
235install: afterinstall _SUBDIR
236.if !defined(NOMAN)
237afterinstall: realinstall maninstall
238.else
239afterinstall: realinstall
240.endif
241realinstall: beforeinstall
242.endif
243
244DISTRIBUTION?=	bin
245.if !target(distribute)
246distribute: _SUBDIR
247.for dist in ${DISTRIBUTION}
248	cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
249.endfor
250.endif
251
252.if !target(load)
253load:	${PROG} install
254	${KMODLOAD} ${KMOD}
255.endif
256
257.if !target(unload)
258unload:
259	${KMODUNLOAD} ${KMOD}
260.endif
261
262.if exists(${.CURDIR}/../../kern)
263KERN=	${.CURDIR}/../../kern
264.else
265KERN=	${.CURDIR}/../../sys/kern
266.endif
267
268.for _src in ${SRCS:Mopt_*.h}
269CLEANFILES+=	${_src}
270.if !target(${_src})
271${_src}:
272	touch ${.TARGET}
273.endif
274.endfor
275
276.for _srcsrc in kern/bus_if.m kern/device_if.m dev/iicbus/iicbb_if.m \
277    dev/iicbus/iicbus_if.m isa/isa_if.m dev/mii/miibus_if.m \
278    dev/pccard/card_if.m dev/pccard/power_if.m pci/pci_if.m \
279    dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m dev/usb/usb_if.m
280.for _ext in c h
281.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
282CLEANFILES+=	${_src}
283.if !target(${_src})
284${_src}: @
285.if exists(@)
286${_src}: @/kern/makedevops.pl @/${_srcsrc}
287.endif
288	perl @/kern/makedevops.pl -${_ext} @/${_srcsrc}
289.endif
290.endfor # _src
291.endfor # _ext
292.endfor # _srcsrc
293
294.for _ext in c h
295.if ${SRCS:Mvnode_if.${_ext}} != ""
296CLEANFILES+=	vnode_if.${_ext}
297vnode_if.${_ext}: @
298.if exists(@)
299vnode_if.${_ext}: @/kern/vnode_if.pl @/kern/vnode_if.src
300.endif
301	perl @/kern/vnode_if.pl -${_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
315.include <bsd.kern.mk>
316