kmod.mk revision 126890 
1#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
2# $FreeBSD: head/sys/conf/kmod.mk 126890 2004-03-12 21:36:12Z trhodes $
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# KMOD          The name of the kernel module to build.
13#
14# KMODDIR	Base path for kernel modules (see kld(4)). [/boot/kernel]
15#
16# KMODOWN	KLD owner. [${BINOWN}]
17#
18# KMODGRP	KLD group. [${BINGRP}]
19#
20# KMODMODE	KLD mode. [${BINMODE}]
21#
22# KMODLOAD	Command to load a kernel module [/sbin/kldload]
23#
24# KMODUNLOAD	Command to unload a kernel module [/sbin/kldunload]
25#
26# PROG          The name of the kernel module to build.
27#		If not supplied, ${KMOD}.o is used.
28#
29# SRCS          List of source files
30#
31# DESTDIR	Change the tree where the module gets installed. [not set]
32#
33# MFILES	Optionally a list of interfaces used by the module.
34#		This file contains a default list of interfaces.
35#
36# EXPORT_SYMS	A list of symbols that should be exported from the module,
37#		or the name of a file containing a list of symbols, or YES
38#		to export all symbols.  If not defined, no symbols are
39#		exported.
40#
41# +++ targets +++
42#
43# 	install:
44#               install the kernel module; 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#
59
60AWK?=		awk
61KMODLOAD?=	/sbin/kldload
62KMODUNLOAD?=	/sbin/kldunload
63OBJCOPY?=	objcopy
64
65.if defined(KMODDEPS)
66.error "Do not use KMODDEPS on 5.0+, use MODULE_VERSION/MODULE_DEPEND"
67.endif
68
69.include <bsd.init.mk>
70
71.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
72
73.if ${CC} == "icc"
74_ICC_CFLAGS:=	${CFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
75CFLAGS=		${_ICC_CFLAGS}
76.endif
77CFLAGS+=	${COPTS} -D_KERNEL
78CFLAGS+=	-DKLD_MODULE
79
80# Don't use any standard or source-relative 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_ICFLAGS:=	${CFLAGS:M-I*}
85.if ${CC} == "icc"
86NOSTDINC=	-X
87.else
88NOSTDINC=	-nostdinc
89.endif
90CFLAGS+=	${NOSTDINC} -I- ${INCLMAGIC} ${_ICFLAGS}
91.if defined(KERNBUILDDIR)
92CFLAGS+=       -include ${KERNBUILDDIR}/opt_global.h
93.endif
94
95# Add -I paths for system headers.  Individual KLD makefiles don't
96# need any -I paths for this.  Similar defaults for .PATH can't be
97# set because there are no standard paths for non-headers.
98CFLAGS+=	-I. -I@
99
100# Add a -I path to standard headers like <stddef.h>.  Use a relative
101# path to src/include if possible.  If the @ symlink hasn't been built
102# yet, then we can't tell if the relative path exists.  Add both the
103# potential relative path and an absolute path in that case.
104.if exists(@)
105.if exists(@/../include)
106CFLAGS+=	-I@/../include
107.else
108CFLAGS+=	-I${DESTDIR}/usr/include
109.endif
110.else # !@
111CFLAGS+=	-I@/../include -I${DESTDIR}/usr/include
112.endif # @
113
114.if ${CC} != "icc"
115CFLAGS+=	-finline-limit=${INLINE_LIMIT}
116.endif
117
118# Disallow common variables, and if we end up with commons from
119# somewhere unexpected, allocate storage for them in the module itself.
120.if ${CC} != "icc"
121CFLAGS+=	-fno-common
122.endif
123LDFLAGS+=	-d -warn-common
124
125CFLAGS+=	${DEBUG_FLAGS}
126
127OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
128
129.if !defined(PROG)
130PROG=	${KMOD}.ko
131.endif
132
133.if !defined(DEBUG_FLAGS)
134FULLPROG=	${PROG}
135.else
136FULLPROG=	${PROG}.debug
137${PROG}: ${FULLPROG}
138	${OBJCOPY} --strip-debug ${FULLPROG} ${PROG}
139.endif
140
141${FULLPROG}: ${KMOD}.kld
142	${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
143.if !defined(DEBUG_FLAGS)
144	${OBJCOPY} --strip-debug ${.TARGET}
145.endif
146
147EXPORT_SYMS?=	NO
148.if ${EXPORT_SYMS} != YES
149CLEANFILES+=	${.OBJDIR}/export_syms
150.endif
151
152${KMOD}.kld: ${OBJS}
153	${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
154.if defined(EXPORT_SYMS)
155.if ${EXPORT_SYMS} != YES
156.if ${EXPORT_SYMS} == NO
157	touch ${.OBJDIR}/export_syms
158.elif !exists(${.CURDIR}/${EXPORT_SYMS})
159	echo ${EXPORT_SYMS} > ${.OBJDIR}/export_syms
160.else
161	grep -v '^#' < ${EXPORT_SYMS} >  ${.OBJDIR}/export_syms
162.endif
163	awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
164		${.OBJDIR}/export_syms | \
165	xargs -J% ${OBJCOPY} % ${.TARGET}
166.endif
167.endif
168
169_ILINKS=@ machine
170
171all: objwarn ${PROG}
172
173beforedepend: ${_ILINKS}
174	@rm -f .depend
175
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}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
186.if !defined(SYSDIR) && exists(${_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
193
194${_ILINKS}:
195	@case ${.TARGET} in \
196	machine) \
197		path=${SYSDIR}/${MACHINE_ARCH}/include ;; \
198	@) \
199		path=${SYSDIR} ;; \
200	esac ; \
201	path=`(cd $$path && /bin/pwd)` ; \
202	${ECHO} ${.TARGET} "->" $$path ; \
203	ln -s $$path ${.TARGET}
204
205CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
206
207.if defined(DEBUG_FLAGS)
208CLEANFILES+= ${FULLPROG}
209.endif
210
211.if !target(install)
212
213_INSTALLFLAGS:=	${INSTALLFLAGS}
214.for ie in ${INSTALLFLAGS_EDIT}
215_INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
216.endfor
217
218.if defined(DEBUG_FLAGS)
219install.debug:
220	cd ${.CURDIR}; ${MAKE} -DINSTALL_DEBUG install
221.endif
222
223.if !target(realinstall)
224realinstall: _kmodinstall
225.ORDER: beforeinstall _kmodinstall
226_kmodinstall:
227.if defined(DEBUG_FLAGS) && defined(INSTALL_DEBUG)
228	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
229	    ${_INSTALLFLAGS} ${FULLPROG} ${DESTDIR}${KMODDIR}
230.else
231	${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
232	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
233
234.include <bsd.links.mk>
235
236.if !defined(NO_XREF)
237afterinstall: _kldxref
238.ORDER: realinstall _kldxref
239.ORDER: _installlinks _kldxref
240_kldxref:
241	@if type kldxref >/dev/null 2>&1; then \
242		${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
243		kldxref ${DESTDIR}${KMODDIR}; \
244	fi
245.endif
246.endif
247.endif !target(realinstall)
248
249.endif !target(install)
250
251.if !target(load)
252load:	${PROG}
253	${KMODLOAD} -v ${.OBJDIR}/${KMOD}.ko
254.endif
255
256.if !target(unload)
257unload:
258	${KMODUNLOAD} -v ${KMOD}
259.endif
260
261.if defined(KERNBUILDDIR)
262.PATH: ${KERNBUILDDIR}
263CFLAGS += -I${KERNBUILDDIR}
264.for _src in ${SRCS:Mopt_*.h}
265CLEANFILES+=	${_src}
266.if !target(${_src})
267${_src}:
268	ln -s ${KERNBUILDDIR}/${_src} ${.TARGET}
269.endif
270.endfor
271.else
272.for _src in ${SRCS:Mopt_*.h}
273CLEANFILES+=	${_src}
274.if !target(${_src})
275${_src}:
276	touch ${.TARGET}
277.endif
278.endfor
279.endif
280
281MFILES?= kern/bus_if.m kern/device_if.m dev/iicbus/iicbb_if.m \
282    dev/iicbus/iicbus_if.m isa/isa_if.m \
283    libkern/iconv_converter_if.m \
284    dev/mii/miibus_if.m \
285    dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \
286    dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \
287    dev/usb/usb_if.m dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
288    dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m pci/agp_if.m \
289    opencrypto/crypto_if.m pc98/pc98/canbus_if.m dev/uart/uart_if.m
290
291.for _srcsrc in ${MFILES}
292.for _ext in c h
293.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
294CLEANFILES+=	${_src}
295.if !target(${_src})
296.if !exists(@)
297${_src}: @
298.endif
299.if exists(@)
300${_src}: @/tools/makeobjops.awk @/${_srcsrc}
301.endif
302	${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext}
303.endif
304.endfor # _src
305.endfor # _ext
306.endfor # _srcsrc
307
308.for _ext in c h
309.if ${SRCS:Mvnode_if.${_ext}} != ""
310CLEANFILES+=	vnode_if.${_ext}
311.if !exists(@)
312vnode_if.${_ext}: @
313.endif
314.if exists(@)
315vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
316.endif
317	${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -${_ext}
318.endif
319.endfor
320
321.if ${SRCS:Mmiidevs.h} != ""
322CLEANFILES+=	miidevs.h
323.if !exists(@)
324miidevs.h: @
325.endif
326.if exists(@)
327miidevs.h: @/tools/devlist2h.awk @/dev/mii/miidevs
328.endif
329	${AWK} -f @/tools/devlist2h.awk @/dev/mii/miidevs
330.endif
331
332regress:
333
334lint: ${SRCS}
335	${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c}
336
337.include <bsd.dep.mk>
338
339.if !exists(${.OBJDIR}/${DEPENDFILE})
340${OBJS}: ${SRCS:M*.h}
341.endif
342
343.include <bsd.obj.mk>
344.include "kern.mk"
345