kmod.mk revision 56735 
1#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
2# $FreeBSD: head/sys/conf/kmod.mk 56735 2000-01-28 11:26:46Z bde $
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
121CFLAGS+=	${DEBUG_FLAGS}
122
123.if ${OBJFORMAT} == elf
124CLEANFILES+=	setdef0.c setdef1.c setdefs.h
125CLEANFILES+=	setdef0.o setdef1.o
126.endif
127
128OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
129
130.if !defined(PROG)
131PROG=	${KMOD}.ko
132.endif
133
134${PROG}: ${OBJS} ${DPADD} ${KMODDEPS}
135.if ${OBJFORMAT} == elf
136	gensetdefs ${OBJS}
137	${CC} ${CFLAGS} -c setdef0.c
138	${CC} ${CFLAGS} -c setdef1.c
139	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} setdef0.o ${OBJS} setdef1.o  ${KMODDEPS}
140.else
141	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${OBJS} ${KMODDEPS}
142.endif
143
144.if defined(KMODDEPS)
145.for dep in ${KMODDEPS}
146CLEANFILES+=	${dep} __${dep}_hack_dep.c
147
148${dep}:
149	touch __${dep}_hack_dep.c
150	${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
151.endfor
152.endif
153
154.if !defined(NOMAN)
155.include <bsd.man.mk>
156.if !defined(_MANPAGES) || empty(_MANPAGES)
157MAN1=	${KMOD}.4
158.endif
159
160.elif !target(maninstall)
161maninstall: _SUBDIR
162all-man:
163.endif
164
165_ILINKS=@ machine
166
167.MAIN: all
168all: objwarn ${PROG} all-man _SUBDIR
169
170beforedepend ${OBJS}: ${_ILINKS}
171
172# The search for the link targets works best if we are in a normal src
173# tree, and not too deeply below src/sys/modules.  If we are near "/", then
174# we may find /sys - this is harmless.  Other abnormal "sys" directories
175# found in the search are likely to cause problems.  If nothing is found,
176# then the links default to /usr/include and /usr/include/machine.
177${_ILINKS}:
178	@set +x; for up in ../.. ../../.. ; do \
179		case ${.TARGET} in \
180		machine) \
181			testpath=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
182			path=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
183			defaultpath=/usr/include/machine ;; \
184		@) \
185			testpath=${.CURDIR}/$$up/sys ; \
186			path=${.CURDIR}/$$up ; \
187			defaultpath=/usr/include ;; \
188		esac ; \
189		if [ -d $$testpath ] ; then break ; fi ; \
190		path=$$defaultpath ; \
191	done ; \
192	path=`(cd $$path && /bin/pwd)` ; \
193	${ECHO} ${.TARGET} "->" $$path ; \
194	ln -s $$path ${.TARGET}
195
196CLEANFILES+= ${PROG} ${OBJS} ${_ILINKS} symb.tmp tmp.o
197
198.if !target(install)
199.if !target(beforeinstall)
200beforeinstall:
201.endif
202.if !target(afterinstall)
203afterinstall:
204.endif
205
206_INSTALLFLAGS:=	${INSTALLFLAGS}
207.for ie in ${INSTALLFLAGS_EDIT}
208_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
209.endfor
210
211realinstall: _SUBDIR
212	${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
213	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
214.if defined(LINKS) && !empty(LINKS)
215	@set ${LINKS}; \
216	while test $$# -ge 2; do \
217		l=${DESTDIR}$$1; \
218		shift; \
219		t=${DESTDIR}$$1; \
220		shift; \
221		${ECHO} $$t -\> $$l; \
222		ln -f $$l $$t; \
223	done; true
224.endif
225.if defined(SYMLINKS) && !empty(SYMLINKS)
226	@set ${SYMLINKS}; \
227	while test $$# -ge 2; do \
228		l=$$1; \
229		shift; \
230		t=${DESTDIR}$$1; \
231		shift; \
232		${ECHO} $$t -\> $$l; \
233		ln -fs $$l $$t; \
234	done; true
235.endif
236
237install: afterinstall _SUBDIR
238.if !defined(NOMAN)
239afterinstall: realinstall maninstall
240.else
241afterinstall: realinstall
242.endif
243realinstall: beforeinstall
244.endif
245
246DISTRIBUTION?=	bin
247.if !target(distribute)
248distribute: _SUBDIR
249.for dist in ${DISTRIBUTION}
250	cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
251.endfor
252.endif
253
254.if !target(load)
255load:	${PROG} install
256	${KMODLOAD} ${KMOD}
257.endif
258
259.if !target(unload)
260unload:
261	${KMODUNLOAD} ${KMOD}
262.endif
263
264.if exists(${.CURDIR}/../../kern)
265KERN=	${.CURDIR}/../../kern
266.else
267KERN=	${.CURDIR}/../../sys/kern
268.endif
269
270.for _src in ${SRCS:Mopt_*.h}
271CLEANFILES+=	${_src}
272.if !target(${_src})
273${_src}:
274	touch ${.TARGET}
275.endif
276.endfor
277
278.for _srcsrc in kern/bus_if.m kern/device_if.m dev/iicbus/iicbb_if.m \
279    dev/iicbus/iicbus_if.m isa/isa_if.m dev/mii/miibus_if.m \
280    dev/pccard/card_if.m dev/pccard/power_if.m pci/pci_if.m \
281    dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m dev/usb/usb_if.m
282.for _ext in c h
283.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
284CLEANFILES+=	${_src}
285.if !target(${_src})
286${_src}: @
287.if exists(@)
288${_src}: @/kern/makedevops.pl @/${_srcsrc}
289.endif
290	perl @/kern/makedevops.pl -${_ext} @/${_srcsrc}
291.endif
292.endfor # _src
293.endfor # _ext
294.endfor # _srcsrc
295
296.for _ext in c h
297.if ${SRCS:Mvnode_if.${_ext}} != ""
298CLEANFILES+=	vnode_if.${_ext}
299vnode_if.${_ext}: @
300.if exists(@)
301vnode_if.${_ext}: @/kern/vnode_if.pl @/kern/vnode_if.src
302.endif
303	perl @/kern/vnode_if.pl -${_ext} @/kern/vnode_if.src
304.endif
305.endfor
306
307regress:
308
309.include <bsd.dep.mk>
310
311.if !exists(${DEPENDFILE})
312${OBJS}: ${SRCS:M*.h}
313.endif
314
315.include <bsd.obj.mk>
316
317.include <bsd.kern.mk>
318