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      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 (${RAMDISK}.fs).  [default: ramdisk]
     17 #
     18 
     19 MINIROOT?=	miniroot
     20 RAMDISK?=	ramdisk
     21 
     22 .include <bsd.own.mk>
     23 .include "${.PARSEDIR}/Makefile.distrib"
     24 
     25 MKMAN=		no
     26 PROG=		${MINIROOT}.kmod
     27 
     28 # Not a real PROG; doesn't actually have source
     29 SRCS.${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"
     43 SRCMOD=		${DESTDIR}/netbsd/modules/miniroot/miniroot.kmod
     44 .else
     45 SRCMOD=		${DESTDIR}/stand/${MACHINE}/${MODULEVER}/modules/miniroot/miniroot.kmod
     46 .endif
     47 DSTMOD=		${.OBJDIR}/${MINIROOT}.kmod
     48 RAMDISKSRCDIR=	${.CURDIR}/../ramdisks/${RAMDISK}
     49 RAMDISKOBJDIR!=	cd ${RAMDISKSRCDIR} && ${PRINTOBJDIR}
     50 RAMDISKFS=	${RAMDISKOBJDIR}/${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 
     61 release:	${PROG}
     62 		${HOST_INSTALL_FILE} -m ${BINMODE} ${PROG}  \
     63 		    ${RELEASEDIR}/${RELEASEMACHINEDIR}/installation/miniroot/
     64