summaryrefslogtreecommitdiffstats
path: root/share/mk/bsd.kmod.mk
blob: f50f42c852c448166e8707921a6cf9482f931544 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
#	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
#	$Id: bsd.kmod.mk,v 1.27 1996/10/06 22:10:35 wosch Exp $
#
# The include file <bsd.kmod.mk> handles installing Loadable Kernel Modules.
# <bsd.kmod.mk> includes the file named "../Makefile.inc" if it exists,
# as well as the include file <bsd.obj.mk>, <bsd.dep.mk>, and
# may be <bsd.man.mk>
#
#
# +++ variables +++
#
# CLEANFILES	Additional files to remove for the clean and cleandir targets.
#
# DISTRIBUTION  Name of distribution. [bin]
#
# EXPORT_SYMS	???
#
# KERN		Main Kernel source directory. [${.CURDIR}/../../sys/kern]
#
# KMOD          The name of the loadable kernel module to build.
#
# KMODDIR	Base path for loadable kernel modules
#		(see lkm(4)). [/lkm]
#
# KMODOWN	LKM owner. [${BINOWN}]
#
# KMODGRP	LKM group. [${BINGRP}]
#
# KMODMODE	LKM mode. [${BINMODE}]
#
# LINKS		The list of LKM links; should be full pathnames, the
#               linked-to file coming first, followed by the linked
#               file.  The files are hard-linked.  For example, to link
#               /lkm/master and /lkm/meister, use:
#
#			LINKS=  /lkm/master /lkm/meister
#
# LN_FLAGS	Flags for ln(1) (see variable LINKS)
#
# MODLOAD	Command to load a kernel module [/sbin/modload]
#
# MODUNLOAD	Command to unload a kernel module [/sbin/modunload]
#
# NOMAN		LKM does not have a manual page if set.
#
# PROG          The name of the loadable kernel module to build. 
#		If not supplied, ${KMOD}.o is used.
#
# PSEUDO_LKM	???
#
# SRCS          List of source files 
#
# SUBDIR        A list of subdirectories that should be built as well.
#               Each of the targets will execute the same target in the
#               subdirectories.
#
# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
#
#
# +++ targets +++
#
#       distribute:
#               This is a variant of install, which will
#               put the stuff into the right "distribution".
#
# 	install:
#               install the program and its manual pages; if the Makefile
#               does not itself define the target install, the targets
#               beforeinstall and afterinstall may also be used to cause
#               actions immediately before and after the install target
#		is executed.
#
# 	load:	
#		Load LKM.
#
# 	tags:
#		Create a tags file for the source files.
#
# 	unload:
#		Unload LKM.
#
# bsd.obj.mk: clean, cleandir and obj
# bsd.dep.mk: depend
# bsd.man.mk: maninstall
#

MODLOAD?=	/sbin/modload
MODUNLOAD?=	/sbin/modunload

.if exists(${.CURDIR}/../Makefile.inc)
.include "${.CURDIR}/../Makefile.inc"
.endif

.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S

#
# Assume that we are in /usr/src/foo/bar, so /sys is
# ${.CURDIR}/../../sys.  We don't bother adding a .PATH since nothing
# actually lives in /sys directly.
#
CFLAGS+=${COPTS} -DKERNEL -DACTUALLY_LKM_NOT_KERNEL -I${.CURDIR}/../../sys \
	${CWARNFLAGS}

EXPORT_SYMS?= _${KMOD}

.if defined(VFS_LKM)
CFLAGS+= -DVFS_LKM -DMODVNOPS=${KMOD}vnops -I.
SRCS+=	vnode_if.h
CLEANFILES+=	vnode_if.h vnode_if.c
.endif

.if defined(PSEUDO_LKM)
CFLAGS+= -DPSEUDO_LKM
.endif

DPSRCS+= ${SRCS:M*.h}
OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}

.if !defined(PROG)
PROG=	${KMOD}.o
.endif

${PROG}: ${DPSRCS} ${OBJS} ${DPADD} 
	${LD} -r ${LDFLAGS} -o tmp.o ${OBJS}
.if defined(EXPORT_SYMS)
	@rm -f symb.tmp
	@for i in ${EXPORT_SYMS} ; do echo $$i >> symb.tmp ; done
	symorder -c symb.tmp tmp.o
	@rm -f symb.tmp
.endif
	mv tmp.o ${.TARGET}

.if !defined(NOMAN)
.include <bsd.man.mk>
.if !defined(_MANPAGES) || empty(_MANPAGES)
MAN1=	${KMOD}.4
.endif

.elif !target(maninstall)
maninstall: _SUBDIR
all-man:
.endif

.MAIN: all
all: objwarn ${PROG} all-man _SUBDIR

CLEANFILES+=${PROG} ${OBJS} 

.if !target(install)
.if !target(beforeinstall)
beforeinstall:
.endif
.if !target(afterinstall)
afterinstall:
.endif

realinstall: _SUBDIR
	${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
	    ${INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
.if defined(LINKS) && !empty(LINKS)
	@set ${LINKS}; \
	while test $$# -ge 2; do \
		l=${DESTDIR}$$1; \
		shift; \
		t=${DESTDIR}$$1; \
		shift; \
		${ECHO} $$t -\> $$l; \
		rm -f $$t; \
		ln ${LN_FLAGS} $$l $$t; \
	done; true
.endif

install: afterinstall _SUBDIR
.if !defined(NOMAN)
afterinstall: realinstall maninstall
.else
afterinstall: realinstall
.endif
realinstall: beforeinstall
.endif

DISTRIBUTION?=	bin
.if !target(distribute)
distribute: _SUBDIR
	cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${DISTRIBUTION} SHARED=copies
.endif

.if !target(tags)
tags: ${SRCS} _SUBDIR
.if defined(PROG)
	-cd ${.CURDIR}; ctags -f /dev/stdout ${.ALLSRC} | \
	    sed "s;\${.CURDIR}/;;" > tags
.endif
.endif


.if !target(load)
load:	${PROG}
	${MODLOAD} -o ${KMOD} -e${KMOD} ${PROG}
.endif

.if !target(unload)
unload:	${PROG}
	${MODUNLOAD} -n ${KMOD}
.endif

KERN=	${.CURDIR}/../../sys/kern

vnode_if.h:	${KERN}/vnode_if.sh ${KERN}/vnode_if.src
	sh ${KERN}/vnode_if.sh ${KERN}/vnode_if.src

./vnode_if.h:	vnode_if.h

.include <bsd.obj.mk>
.include <bsd.dep.mk>
.include <bsd.kern.mk>
OpenPOWER on IntegriCloud