kmod.mk revision 33687 
1181638Skmacy#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
2181638Skmacy#	$Id: bsd.kmod.mk,v 1.43 1998/02/01 17:19:54 bde Exp $
3181638Skmacy#
4181638Skmacy# The include file <bsd.kmod.mk> handles installing Loadable Kernel Modules.
5181638Skmacy#
6181638Skmacy#
7181638Skmacy# +++ variables +++
8181638Skmacy#
9181638Skmacy# CLEANFILES	Additional files to remove for the clean and cleandir targets.
10181638Skmacy#
11181638Skmacy# DISTRIBUTION  Name of distribution. [bin]
12181638Skmacy#
13181638Skmacy# EXPORT_SYMS	???
14181638Skmacy#
15181638Skmacy# KERN		Main Kernel source directory. [${.CURDIR}/../../sys/kern]
16181638Skmacy#
17181638Skmacy# KMOD          The name of the loadable kernel module to build.
18181638Skmacy#
19181638Skmacy# KMODDIR	Base path for loadable kernel modules
20181638Skmacy#		(see lkm(4)). [/lkm]
21181638Skmacy#
22181638Skmacy# KMODOWN	LKM owner. [${BINOWN}]
23#
24# KMODGRP	LKM group. [${BINGRP}]
25#
26# KMODMODE	LKM mode. [${BINMODE}]
27#
28# LINKS		The list of LKM links; should be full pathnames, the
29#               linked-to file coming first, followed by the linked
30#               file.  The files are hard-linked.  For example, to link
31#               /lkm/master and /lkm/meister, use:
32#
33#			LINKS=  /lkm/master /lkm/meister
34#
35# LN_FLAGS	Flags for ln(1) (see variable LINKS)
36#
37# MODLOAD	Command to load a kernel module [/sbin/modload]
38#
39# MODUNLOAD	Command to unload a kernel module [/sbin/modunload]
40#
41# NOMAN		LKM does not have a manual page if set.
42#
43# PROG          The name of the loadable kernel module to build. 
44#		If not supplied, ${KMOD}.o is used.
45#
46# PSEUDO_LKM	???
47#
48# SRCS          List of source files 
49#
50# SUBDIR        A list of subdirectories that should be built as well.
51#               Each of the targets will execute the same target in the
52#               subdirectories.
53#
54# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
55#
56#
57# +++ targets +++
58#
59#       distribute:
60#               This is a variant of install, which will
61#               put the stuff into the right "distribution".
62#
63# 	install:
64#               install the program and its manual pages; if the Makefile
65#               does not itself define the target install, the targets
66#               beforeinstall and afterinstall may also be used to cause
67#               actions immediately before and after the install target
68#		is executed.
69#
70# 	load:	
71#		Load LKM.
72#
73# 	unload:
74#		Unload LKM.
75#
76# bsd.obj.mk: clean, cleandir and obj
77# bsd.dep.mk: cleandepend, depend and tags
78# bsd.man.mk: maninstall
79#
80
81MODLOAD?=	/sbin/modload
82MODUNLOAD?=	/sbin/modunload
83
84.if exists(${.CURDIR}/../Makefile.inc)
85.include "${.CURDIR}/../Makefile.inc"
86.endif
87
88.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
89
90CFLAGS+=	${COPTS} -DKERNEL -DACTUALLY_LKM_NOT_KERNEL ${CWARNFLAGS}
91
92# Don't use any standard or source-relative include directories.
93# Since -nostdinc will annull any previous -I paths, we repeat all
94# such paths after -nostdinc.  It doesn't seem to be possible to
95# add to the front of `make' variable.
96_ICFLAGS:=	${CFLAGS:M-I*}
97CFLAGS+=	-nostdinc -I- ${_ICFLAGS}
98
99# Add -I paths for system headers.  Individual LKM makefiles don't
100# need any -I paths for this.  Similar defaults for .PATH can't be
101# set because there are no standard paths for non-headers.
102CFLAGS+=	-I${.OBJDIR} -I${.OBJDIR}/@
103
104# XXX this is now dubious.
105.if defined(DESTDIR)
106CFLAGS+=	-I${DESTDIR}/usr/include
107.endif
108
109EXPORT_SYMS?= _${KMOD}
110
111.if defined(VFS_LKM)
112CFLAGS+= -DVFS_LKM -DMODVNOPS=${KMOD}vnops
113SRCS+=	vnode_if.h
114CLEANFILES+=	vnode_if.h vnode_if.c
115.endif
116
117.if defined(PSEUDO_LKM)
118CFLAGS+= -DPSEUDO_LKM
119.endif
120
121DPSRCS+= ${SRCS:M*.h}
122OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
123
124.if !defined(PROG)
125PROG=	${KMOD}.o
126.endif
127
128${PROG}: ${DPSRCS} ${OBJS} ${DPADD} 
129	${LD} -r ${LDFLAGS} -o tmp.o ${OBJS}
130.if defined(EXPORT_SYMS)
131	@rm -f symb.tmp
132	@for i in ${EXPORT_SYMS} ; do echo $$i >> symb.tmp ; done
133	symorder -c symb.tmp tmp.o
134	@rm -f symb.tmp
135.endif
136	mv tmp.o ${.TARGET}
137
138.if !defined(NOMAN)
139.include <bsd.man.mk>
140.if !defined(_MANPAGES) || empty(_MANPAGES)
141MAN1=	${KMOD}.4
142.endif
143
144.elif !target(maninstall)
145maninstall: _SUBDIR
146all-man:
147.endif
148
149_ILINKS=@ machine
150
151.MAIN: all
152all: ${_ILINKS} objwarn ${PROG} all-man _SUBDIR
153
154beforedepend: ${_ILINKS}
155
156# The search for the link targets works best if we are in a normal src
157# tree, and not too deeply below src/lkm.  If we are near "/", then
158# we may find /sys - this is harmless.  Other abnormal "sys" directories
159# found in the search are likely to cause problems.  If nothing is found,
160# then the links default to /usr/include and /usr/include/machine.
161${_ILINKS}:
162	@for up in ../.. ../../.. ; do \
163		case ${.TARGET} in \
164		machine) \
165			path=${.CURDIR}/$$up/sys/${MACHINE_ARCH}/include ; \
166			defaultpath=/usr/include/machine ;; \
167		@) \
168			path=${.CURDIR}/$$up/sys ; \
169			defaultpath=/usr/include ;; \
170		esac ; \
171		if [ -d $$path ] ; then break ; fi ; \
172		path=$$defaultpath ; \
173	done ; \
174	path=`(cd $$path && /bin/pwd)` ; \
175	${ECHO} ${.TARGET} "->" $$path ; \
176	ln -s $$path ${.TARGET}
177
178CLEANFILES+= ${KMOD} ${PROG} ${OBJS} ${_ILINKS}
179
180.if !target(install)
181.if !target(beforeinstall)
182beforeinstall:
183.endif
184.if !target(afterinstall)
185afterinstall:
186.endif
187
188realinstall: _SUBDIR
189	${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
190	    ${INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
191.if defined(LINKS) && !empty(LINKS)
192	@set ${LINKS}; \
193	while test $$# -ge 2; do \
194		l=${DESTDIR}$$1; \
195		shift; \
196		t=${DESTDIR}$$1; \
197		shift; \
198		${ECHO} $$t -\> $$l; \
199		rm -f $$t; \
200		ln ${LN_FLAGS} $$l $$t; \
201	done; true
202.endif
203
204install: afterinstall _SUBDIR
205.if !defined(NOMAN)
206afterinstall: realinstall maninstall
207.else
208afterinstall: realinstall
209.endif
210realinstall: beforeinstall
211.endif
212
213DISTRIBUTION?=	bin
214.if !target(distribute)
215distribute: _SUBDIR
216.for dist in ${DISTRIBUTION}
217	cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
218.endfor
219.endif
220
221.if !target(load)
222load:	${PROG}
223	${MODLOAD} -o ${KMOD} -e${KMOD} ${PROG}
224.endif
225
226.if !target(unload)
227unload:	${PROG}
228	${MODUNLOAD} -n ${KMOD}
229.endif
230
231KERN=	${.CURDIR}/../../sys/kern
232
233vnode_if.h:	${KERN}/vnode_if.sh ${KERN}/vnode_if.src
234	sh ${KERN}/vnode_if.sh ${KERN}/vnode_if.src
235
236./vnode_if.h:	vnode_if.h
237
238.include <bsd.obj.mk>
239.include <bsd.dep.mk>
240.include <bsd.kern.mk>
241