Makefile.minirootkmod revision 1.5 
1#	$NetBSD: Makefile.minirootkmod,v 1.5 2020/07/02 08:48:10 lukem Exp $
2#
3# Makefile snippet to build a miniroot kernel module (e.g. miniroot.kmod)
4#
5# Required variables:
6#	NETBSDSRCDIR	top level of src tree (set by <bsd.own.mk>)
7#
8# Optional variables:
9#	MINIROOT	Basename of the kernel module to be created.
10#			".kmod" will be appended to get the file name.
11#			[default: miniroot]
12#	RAMDISK		Basename of the ramdisk to be embedded in the
13#			kernel module.  This is used as both a directory
14#			name (${.CURDIR}/../ramdisks/${RAMDISK}) and
15#			as a file name within the .OBJDIR of that
16#			directory (${RAMDISK}.fs).  [default: ramdisk]
17#
18
19MINIROOT?=	miniroot
20RAMDISK?=	ramdisk
21
22.include <bsd.own.mk>
23.include "${.PARSEDIR}/Makefile.distrib"
24
25MKMAN=		no
26PROG=		${MINIROOT}.kmod
27
28# Not a real PROG; doesn't actually have source
29SRCS.${PROG}=
30
31# SRCMOD is a skeleton version of miniroot.kmod, without an embedded ramdisk.
32# It should already have been created by "make install" in
33# .../sys/modules/miniroot, and its name includes literal "miniroot",
34# not variable ${MINIROOT}.
35#
36# DSTMOD is a copy of SRCMOD that is modified to include an embedded ramdisk.
37# It will be created by rules in this Makefile.
38#
39# RAMDISKFS is the ramdisk image to be included inside DSTMOD.  It should
40# already have been created by the Makefile in RAMDISKSRCDIR.
41#
42.if ${KERNEL_DIR:U*no} == "yes"
43SRCMOD=		${DESTDIR}/netbsd/modules/miniroot/miniroot.kmod
44.else
45SRCMOD=		${DESTDIR}/stand/${MACHINE}/${MODULEVER}/modules/miniroot/miniroot.kmod
46.endif
47DSTMOD=		${.OBJDIR}/${MINIROOT}.kmod
48RAMDISKSRCDIR=	${.CURDIR}/../ramdisks/${RAMDISK}
49RAMDISKOBJDIR!=	cd ${RAMDISKSRCDIR} && ${PRINTOBJDIR}
50RAMDISKFS=	${RAMDISKOBJDIR}/${RAMDISK}.fs
51
52${MINIROOT}.kmod:	${RAMDISKFS} ${SRCMOD}
53		${OBJCOPY} --add-section miniroot=${RAMDISKFS} \
54		    --set-section-flags miniroot=alloc,contents,load,data \
55		    ${SRCMOD} ${DSTMOD}.tmp
56		${TOOL_GZIP_N} -9c < ${DSTMOD}.tmp > ${DSTMOD}
57		rm -f ${DSTMOD}.tmp
58
59.include <bsd.prog.mk>
60
61release:	${PROG}
62		${HOST_INSTALL_FILE} -m ${BINMODE} ${PROG}  \
63		    ${RELEASEDIR}/${RELEASEMACHINEDIR}/installation/miniroot/
64