kmod.mk revision 75332 
1#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
2# $FreeBSD: head/sys/conf/kmod.mk 75332 2001-04-09 09:39:29Z bp $
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# KMOD          The name of the kernel module to build.
15#
16# KMODDIR	Base path for kernel modules (see kld(4)). [/boot/kernel]
17#
18# KMODOWN	KLD owner. [${BINOWN}]
19#
20# KMODGRP	KLD group. [${BINGRP}]
21#
22# KMODMODE	KLD mode. [${BINMODE}]
23#
24# LINKS		The list of KLD links; should be full pathnames, the
25#               linked-to file coming first, followed by the linked
26#               file.  The files are hard-linked.  For example, to link
27#               /modules/master and /modules/meister, use:
28#
29#			LINKS=  /modules/master /modules/meister
30#
31# KMODLOAD	Command to load a kernel module [/sbin/kldload]
32#
33# KMODUNLOAD	Command to unload a kernel module [/sbin/kldunload]
34#
35# NOMAN		KLD does not have a manual page if set.
36#
37# PROG          The name of the kernel module to build.
38#		If not supplied, ${KMOD}.o is used.
39#
40# SRCS          List of source files
41#
42# SUBDIR        A list of subdirectories that should be built as well.
43#               Each of the targets will execute the same target in the
44#               subdirectories.
45#
46# SYMLINKS	Same as LINKS, except it creates symlinks and the
47#		linked-to pathname may be relative.
48#
49# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
50#
51# MFILES	Optionally a list of interfaces used by the module.
52#		This file contains a default list of interfaces.
53#
54# +++ targets +++
55#
56#       distribute:
57#               This is a variant of install, which will
58#               put the stuff into the right "distribution".
59#
60# 	install:
61#               install the program and its manual pages; if the Makefile
62#               does not itself define the target install, the targets
63#               beforeinstall and afterinstall may also be used to cause
64#               actions immediately before and after the install target
65#		is executed.
66#
67# 	load:
68#		Load KLD.
69#
70# 	unload:
71#		Unload KLD.
72#
73# bsd.obj.mk: clean, cleandir and obj
74# bsd.dep.mk: cleandepend, depend and tags
75# bsd.man.mk: maninstall
76#
77
78KMODLOAD?=	/sbin/kldload
79KMODUNLOAD?=	/sbin/kldunload
80
81TARGET_ARCH?=	${MACHINE_ARCH}
82
83.if !target(__initialized__)
84__initialized__:
85.if exists(${.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- ${INCLMAGIC} ${_ICFLAGS}
101
102# Add -I paths for system headers.  Individual KLD makefiles don't
103# need any -I paths for this.  Similar defaults for .PATH can't be
104# set because there are no standard paths for non-headers.
105CFLAGS+=	-I. -I@ -I@/dev
106
107# Add a -I path to standard headers like <stddef.h>.  Use a relative
108# path to src/include if possible.  If the @ symlink hasn't been built
109# yet, then we can't tell if the relative path exists.  Add both the
110# potential relative path and an absolute path in that case.
111.if exists(@)
112.if exists(@/../include)
113CFLAGS+=	-I@/../include
114.else
115CFLAGS+=	-I${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}: ${KMOD}.kld
135.if ${OBJFORMAT} == elf
136	perl5 @/kern/gensetdefs.pl ${KMOD}.kld
137	${CC} ${CFLAGS} -c setdef0.c
138	${CC} ${CFLAGS} -c setdef1.c
139	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} setdef0.o ${KMOD}.kld setdef1.o
140.else
141	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
142.endif
143
144${KMOD}.kld: ${OBJS}
145	${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
146
147.if !defined(NOMAN)
148.if 0
149MAN?=	${KMOD}.4
150.endif
151.include <bsd.man.mk>
152.else
153.if !target(all-man)
154all-man: _SUBDIR
155.endif
156.if !target(maninstall)
157maninstall: _SUBDIR
158.endif
159.endif
160
161_ILINKS=@ machine
162
163.MAIN: all
164all: objwarn ${PROG} all-man _SUBDIR
165
166beforedepend: ${_ILINKS}
167	@rm -f .depend
168
169# Ensure that the links exist without depending on it when it exists which
170# causes all the modules to be rebuilt when the directory pointed to changes.
171.for _link in ${_ILINKS}
172.if !exists(${.OBJDIR}/${_link})
173${OBJS}: ${_link}
174.endif
175.endfor
176
177# Search for kernel source tree in standard places.
178.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
179.if !defined(SYSDIR) && exists(${_dir}/kern/)
180SYSDIR=	${_dir}
181.endif
182.endfor
183.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
184.error "can't find kernel source tree"
185.endif
186
187${_ILINKS}:
188	@case ${.TARGET} in \
189	machine) \
190		path=${SYSDIR}/${MACHINE_ARCH}/include ;; \
191	@) \
192		path=${SYSDIR} ;; \
193	esac ; \
194	path=`(cd $$path && /bin/pwd)` ; \
195	${ECHO} ${.TARGET} "->" $$path ; \
196	ln -s $$path ${.TARGET}
197
198CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
199
200.if !target(install)
201.if !target(beforeinstall)
202beforeinstall:
203.endif
204.if !target(afterinstall)
205afterinstall:
206.endif
207
208_INSTALLFLAGS:=	-fschg ${INSTALLFLAGS}
209.for ie in ${INSTALLFLAGS_EDIT}
210_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
211.endfor
212
213realinstall: _SUBDIR
214	${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
215	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
216.if defined(LINKS) && !empty(LINKS)
217	@set ${LINKS}; \
218	while test $$# -ge 2; do \
219		l=${DESTDIR}$$1; \
220		shift; \
221		t=${DESTDIR}$$1; \
222		shift; \
223		${ECHO} $$t -\> $$l; \
224		ln -f $$l $$t; \
225	done; true
226.endif
227.if defined(SYMLINKS) && !empty(SYMLINKS)
228	@set ${SYMLINKS}; \
229	while test $$# -ge 2; do \
230		l=$$1; \
231		shift; \
232		t=${DESTDIR}$$1; \
233		shift; \
234		${ECHO} $$t -\> $$l; \
235		ln -fs $$l $$t; \
236	done; true
237.endif
238
239install: afterinstall _SUBDIR
240.if !defined(NOMAN)
241afterinstall: realinstall maninstall
242.else
243afterinstall: realinstall
244.endif
245realinstall: beforeinstall
246.endif
247
248DISTRIBUTION?=	bin
249.if !target(distribute)
250distribute: _SUBDIR
251.for dist in ${DISTRIBUTION}
252	cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
253.endfor
254.endif
255
256.if !target(load)
257load:	${PROG}
258	${KMODLOAD} -v ./${KMOD}.ko
259.endif
260
261.if !target(unload)
262unload:
263	${KMODUNLOAD} -v ${KMOD}
264.endif
265
266.for _src in ${SRCS:Mopt_*.h}
267CLEANFILES+=	${_src}
268.if !target(${_src})
269${_src}:
270	touch ${.TARGET}
271.endif
272.endfor
273
274MFILES?= kern/bus_if.m kern/device_if.m dev/iicbus/iicbb_if.m \
275    dev/iicbus/iicbus_if.m isa/isa_if.m \
276    libkern/iconv_converter_if.m \
277    dev/mii/miibus_if.m \
278    dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \
279    dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \
280    dev/usb/usb_if.m dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
281    dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m pci/agp_if.m
282
283.for _srcsrc in ${MFILES}
284.for _ext in c h
285.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
286CLEANFILES+=	${_src}
287.if !target(${_src})
288.if !exists(@)
289${_src}: @
290.endif
291.if exists(@)
292${_src}: @/kern/makeobjops.pl @/${_srcsrc}
293.endif
294	perl @/kern/makeobjops.pl -${_ext} @/${_srcsrc}
295.endif
296.endfor # _src
297.endfor # _ext
298.endfor # _srcsrc
299
300.for _ext in c h
301.if ${SRCS:Mvnode_if.${_ext}} != ""
302CLEANFILES+=	vnode_if.${_ext}
303.if !exists(@)
304vnode_if.${_ext}: @
305.endif
306.if exists(@)
307vnode_if.${_ext}: @/kern/vnode_if.pl @/kern/vnode_if.src
308.endif
309	perl @/kern/vnode_if.pl -${_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
323.include <bsd.kern.mk>
324