xref: /netbsd-src/share/mk/bsd.kmodule.mk (revision 274254cdae52594c1aa480a736aef78313d15c9c)
1#	$NetBSD: bsd.kmodule.mk,v 1.18 2009/01/24 22:14:45 rmind Exp $
2
3# We are not building this with PIE
4MKPIE=no
5
6.include <bsd.init.mk>
7.include <bsd.klinks.mk>
8.include <bsd.sys.mk>
9
10##### Basic targets
11clean:		cleankmod
12realinstall:	kmodinstall
13
14KERN=		$S/kern
15
16CFLAGS+=	-ffreestanding ${COPTS}
17CPPFLAGS+=	-nostdinc -I. -I${.CURDIR} -isystem $S -isystem $S/arch
18CPPFLAGS+=	-isystem ${S}/../common/include
19CPPFLAGS+=	-D_KERNEL -D_LKM -D_MODULE
20
21# XXX until the kernel is fixed again...
22.if (defined(HAVE_GCC) && ${HAVE_GCC} == 4) || defined(HAVE_PCC)
23CFLAGS+=	-fno-strict-aliasing -Wno-pointer-sign
24.endif
25
26_YKMSRCS=	${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}}
27DPSRCS+=	${_YKMSRCS}
28CLEANFILES+=	${_YKMSRCS}
29
30.if exists($S/../gnu/usr.bin/binutils/ld/xldscripts/kmodule)
31KMODSCRIPT=	$S/../gnu/usr.bin/binutils/ld/xldscripts/kmodule
32.else
33KMODSCRIPT=	${DESTDIR}/usr/libdata/ldscripts/kmodule
34.endif
35
36OBJS+=		${SRCS:N*.h:N*.sh:R:S/$/.o/g}
37PROG?=		${KMOD}.kmod
38
39##### Build rules
40realall:	${PROG}
41
42${OBJS} ${LOBJS}: ${DPSRCS}
43
44${PROG}: ${OBJS} ${DPADD}
45	${_MKTARGET_LINK}
46	${LD} -T ${KMODSCRIPT} -r -d -o ${.TARGET} ${OBJS}
47
48##### Install rules
49.if !target(kmodinstall)
50.if !defined(KMODULEDIR)
51_OSRELEASE!=	${HOST_SH} $S/conf/osrelease.sh
52# Ensure these are recorded properly in METALOG on unprived installes:
53_INST_DIRS=	${DESTDIR}/stand/${MACHINE}
54_INST_DIRS+=	${DESTDIR}/stand/${MACHINE}/${_OSRELEASE}
55_INST_DIRS+=	${DESTDIR}/stand/${MACHINE}/${_OSRELEASE}/modules
56KMODULEDIR=	${DESTDIR}/stand/${MACHINE}/${_OSRELEASE}/modules/${KMOD}
57.endif
58_PROG:=		${KMODULEDIR}/${PROG} # installed path
59
60.if ${MKUPDATE} == "no"
61${_PROG}! ${PROG}					# install rule
62.if !defined(BUILD) && !make(all) && !make(${PROG})
63${_PROG}!	.MADE					# no build at install
64.endif
65.else
66${_PROG}: ${PROG}					# install rule
67.if !defined(BUILD) && !make(all) && !make(${PROG})
68${_PROG}:	.MADE					# no build at install
69.endif
70.endif
71	${_MKTARGET_INSTALL}
72	dirs=${_INST_DIRS:Q}; \
73	for d in $$dirs; do \
74		${INSTALL_DIR} $$d; \
75	done
76	${INSTALL_DIR} ${KMODULEDIR}
77	${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \
78		${.ALLSRC} ${.TARGET}
79
80kmodinstall::	${_PROG}
81.PHONY:		kmodinstall
82.PRECIOUS:	${_PROG}				# keep if install fails
83
84.undef _PROG
85.endif # !target(kmodinstall)
86
87##### Clean rules
88cleankmod: .PHONY
89	rm -f a.out [Ee]rrs mklog core *.core \
90		${PROG} ${OBJS} ${LOBJS} ${CLEANFILES}
91
92##### Custom rules
93lint: ${LOBJS}
94.if defined(LOBJS) && !empty(LOBJS)
95	${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[  ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD}
96.endif
97
98##### Pull in related .mk logic
99.include <bsd.man.mk>
100.include <bsd.links.mk>
101.include <bsd.dep.mk>
102
103.-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc"
104.-include "$S/arch/${MACHINE}/include/Makefile.inc"
105