#	$OpenBSD: bsd.lkm.mk,v 1.25 2013/10/15 22:40:00 deraadt Exp $

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

.include <bsd.own.mk>

.SUFFIXES: .out .o .c .cc .C .y .l .s .8 .7 .6 .5 .4 .3 .2 .1 .0

# XXX In order to at least diminish the brokenness of trusting /sys to point
# to the tree we're actually belonging to we check BSDSRCDIR.  On multi-tree
# machines /sys isn't always a link to the correct tree.
.if defined(BSDSRCDIR)
CFLAGS+=	${COPTS} -D_KERNEL -D_LKM -I${BSDSRCDIR}/sys -I${BSDSRCDIR}/sys/arch
.else
CFLAGS+=	${COPTS} -D_KERNEL -D_LKM -I/sys -I/sys/arch
.endif
.if ${WARNINGS:L} == "yes"
CFLAGS+=	${CDIAGFLAGS}
.endif

.if ${MACHINE} == "amd64"
CFLAGS+=	-mcmodel=kernel
.endif

CFLAGS+=	${NOPIE_FLAGS}
AFLAGS+=	${NOPIE_FLAGS}
LDFLAGS+=	${NOPIE_LDFLAGS}

LDFLAGS+= -r
.if defined(LKM)
SRCS?=	${LKM}.c
.if !empty(SRCS:N*.h:N*.sh)
OBJS+=	${SRCS:N*.h:N*.sh:R:S/$/.o/}
.endif
COMBINED?=combined.o
.if !defined(POSTINSTALL)
POSTINSTALL= ${LKM}install
.endif

.if defined(OBJS) && !empty(OBJS)

${COMBINED}: ${OBJS} ${DPADD}
	${LD} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}

.endif	# defined(OBJS) && !empty(OBJS)

.if	!defined(MAN)
MAN=	${LKM}.1
.endif	# !defined(MAN)
.endif	# defined(LKM)

.MAIN: all
all: ${COMBINED} _SUBDIRUSE

.if !target(clean)
clean: _SUBDIRUSE
	rm -f a.out [Ee]rrs mklog *.core \
	    ${LKM} ${COMBINED} ${OBJS} ${CLEANFILES}
.endif

cleandir: _SUBDIRUSE clean

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

.if !target(realinstall)
realinstall:
.if defined(LKM)
	${INSTALL} ${INSTALL_COPY} -o ${LKMOWN} -g ${LKMGRP} -m ${LKMMODE} \
	    ${COMBINED} ${DESTDIR}${LKMDIR}/${LKM}.o
.if exists(${.CURDIR}/${POSTINSTALL})
	${INSTALL} ${INSTALL_COPY} -o ${LKMOWN} -g ${LKMGRP} -m 555 \
	    ${.CURDIR}/${POSTINSTALL} ${DESTDIR}${LKMDIR}
.endif
.endif
.if defined(LINKS) && !empty(LINKS)
.  for lnk file in ${LINKS}
	@l=${DESTDIR}${LKMDIR}${lnk}; \
	 t=${DESTDIR}${LKMDIR}${file}; \
	 echo $$t -\> $$l; \
	 rm -f $$t; ln $$l $$t
.  endfor
.endif
.endif


load:	${COMBINED}
	if [ -x ${.CURDIR}/${POSTINSTALL} ]; then \
		modload -d -o ${LKM} -e${LKM}_lkmentry \
		    -p${.CURDIR}/${POSTINSTALL} ${COMBINED}; \
	else \
		modload -d -o ${LKM} -e${LKM}_lkmentry ${COMBINED}; \
	fi

unload:
	modunload -n ${LKM}

install: maninstall _SUBDIRUSE

maninstall: afterinstall
afterinstall: realinstall
realinstall: beforeinstall
.endif

.if !defined(NOMAN)
.include <bsd.man.mk>
.endif

.if !defined(NONLS)
.include <bsd.nls.mk>
.endif

.include <bsd.obj.mk>
.include <bsd.dep.mk>
.include <bsd.subdir.mk>
.include <bsd.sys.mk>

.PHONY: load unload