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Date:      Tue, 03 Sep 2019 14:07:03 -0000
From:      Kyle Evans <kevans@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org
Subject:   svn commit: r346304 - stable/12/sys/conf
Message-ID:  <201904162109.x3GL9vQT052213@repo.freebsd.org>

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Author: kevans
Date: Tue Apr 16 21:09:57 2019
New Revision: 346304
URL: https://svnweb.freebsd.org/changeset/base/346304

Log:
  MFC r345519: DTS/DTSO makeoptions
  
  Allow kernel config to specify DTS/DTSO to build, and out-of-tree support
  
  This allows for directives such as
  
  makeoptions DTS+=/out/of/tree/myboard.dts
  # in tree! Same rules applied as if this were in a dtb/ module
  makeoptions DTS+=otherboard.dts
  
  to be specified in config(5) and have these built/installed alongside th
  kernel. The assumption that overlays live in an overlays/ directory is only
  made for in-tree DTSO, but we still make the assumption that out-of-tree
  arm64 DTS will be in vendored directories (for now).
  
  This lowers the cost to hacking on an overlay or dts by being able to
  quickly throw it in a custom config, especially if it doesn't fit one of the
  current dtb/modules quite appropriately or it's not intended for commit
  there.
  
  The build/install targets were split out of dtb.mk to centralize the build
  logic and leave out the all/realinstall/CLEANFILES additions... it was
  believed that we didn't want to pollute the kernel build with these.
  
  The build rules were converted to suffix rules at the suggestion of Ian to
  clean things up a little bit in a world where we can have mixed
  in-tree/out-of-tree DTS/DTSO specified.

Added:
  stable/12/sys/conf/dtb.build.mk
     - copied unchanged from r345519, head/sys/conf/dtb.build.mk
Modified:
  stable/12/sys/conf/dtb.mk
  stable/12/sys/conf/kern.post.mk
Directory Properties:
  stable/12/   (props changed)

Copied: stable/12/sys/conf/dtb.build.mk (from r345519, head/sys/conf/dtb.build.mk)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ stable/12/sys/conf/dtb.build.mk	Tue Apr 16 21:09:57 2019	(r346304, copy of r345519, head/sys/conf/dtb.build.mk)
@@ -0,0 +1,77 @@
+# $FreeBSD$
+
+.include <bsd.init.mk>
+# Grab all the options for a kernel build. For backwards compat, we need to
+# do this after bsd.own.mk.
+.include "kern.opts.mk"
+
+DTC?=		dtc
+
+.if !defined(SYSDIR)
+.if defined(S)
+SYSDIR=	${S}
+.else
+# Search for kernel source tree in standard places.
+.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
+.if exists(${_dir}/kern/)
+SYSDIR=	${_dir:tA}
+.endif
+.endfor
+.endif	# defined(S)
+.endif	# defined(SYSDIR)
+
+.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
+.error "can't find kernel source tree"
+.endif
+
+DTB=${DTS:T:R:S/$/.dtb/}
+DTBO=${DTSO:T:R:S/$/.dtbo/}
+
+.SUFFIXES: .dtb .dts .dtbo .dtso
+.PATH.dts: ${SYSDIR}/gnu/dts/${MACHINE} ${SYSDIR}/dts/${MACHINE}
+.PATH.dtso: ${SYSDIR}/dts/${MACHINE}/overlays
+
+.export DTC ECHO
+
+.dts.dtb:	${OP_META}
+	@${ECHO} Generating ${.TARGET} from ${.IMPSRC}
+	@${SYSDIR}/tools/fdt/make_dtb.sh ${SYSDIR} ${.IMPSRC} ${.OBJDIR}
+
+.dtso.dtbo:	${OP_META}
+	@${ECHO} Generating ${.TARGET} from ${.IMPSRC}
+	@${SYSDIR}/tools/fdt/make_dtbo.sh ${SYSDIR} ${.IMPSRC} ${.OBJDIR}
+
+# Add dependencies on the source file so that out-of-tree things can be included
+# without any .PATH additions.
+.for _dts in ${DTS}
+${_dts:R:T}.dtb: ${_dts}
+.endfor
+
+.for _dtso in ${DTSO}
+${_dtso:R:T}.dtbo: ${_dtso}
+.endfor
+
+_dtbinstall:
+# Need to create this because installkernel doesn't invoke mtree with BSD.root.mtree
+# to make sure the tree is setup properly. We don't recreate it to avoid duplicate
+# entries in the NO_ROOT case.
+	test -d ${DESTDIR}${DTBDIR} || ${INSTALL} -d -o ${DTBOWN} -g ${DTBGRP} ${DESTDIR}${DTBDIR}
+.for _dtb in ${DTB}
+.if ${MACHINE_CPUARCH} == "aarch64"
+	# :H:T here to grab the vendor component of the DTB path in a way that
+	# allows out-of-tree DTS builds, too.  We make the assumption that
+	# out-of-tree DTS will have a similar directory structure to in-tree,
+	# with .dts files appearing in a vendor/ directory.
+	test -d ${DESTDIR}${DTBDIR}/${_dtb:H:T} || ${INSTALL} -d -o ${DTBOWN} -g ${DTBGRP} ${DESTDIR}${DTBDIR}/${_dtb:H:T}
+	${INSTALL} -o ${DTBOWN} -g ${DTBGRP} -m ${DTBMODE} \
+	    ${_INSTALLFLAGS} ${_dtb:T} ${DESTDIR}${DTBDIR}/${_dtb:H:T}
+.else
+	${INSTALL} -o ${DTBOWN} -g ${DTBGRP} -m ${DTBMODE} \
+	    ${_INSTALLFLAGS} ${_dtb} ${DESTDIR}${DTBDIR}/
+.endif
+.endfor
+	test -d ${DESTDIR}${DTBODIR} || ${INSTALL} -d -o ${DTBOWN} -g ${DTBGRP} ${DESTDIR}${DTBODIR}
+.for _dtbo in ${DTBO}
+	${INSTALL} -o ${DTBOWN} -g ${DTBGRP} -m ${DTBMODE} \
+	    ${_INSTALLFLAGS} ${_dtbo} ${DESTDIR}${DTBODIR}/
+.endfor

Modified: stable/12/sys/conf/dtb.mk
==============================================================================
--- stable/12/sys/conf/dtb.mk	Tue Apr 16 21:02:41 2019	(r346303)
+++ stable/12/sys/conf/dtb.mk	Tue Apr 16 21:09:57 2019	(r346304)
@@ -8,6 +8,8 @@
 #
 # DTS		List of the dts files to build and install.
 #
+# DTSO		List of the dts overlay files to build and install.
+#
 # DTBDIR	Base path for dtb modules [/boot/dtb]
 #
 # DTBOWN	.dtb file owner. [${BINOWN}]
@@ -20,7 +22,7 @@
 #
 # +++ targets +++
 #
-# 	install:
+#	install:
 #               install the kernel module; if the Makefile
 #               does not itself define the target install, the targets
 #               beforeinstall and afterinstall may also be used to cause
@@ -28,78 +30,15 @@
 #		is executed.
 #
 
-.include <bsd.init.mk>
-# Grab all the options for a kernel build. For backwards compat, we need to
-# do this after bsd.own.mk.
-.include "kern.opts.mk"
+.include "dtb.build.mk"
 
-DTC?=		dtc
-
-# Search for kernel source tree in standard places.
-.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
-.if !defined(SYSDIR) && exists(${_dir}/kern/)
-SYSDIR=	${_dir:tA}
-.endif
-.endfor
-.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
-.error "can't find kernel source tree"
-.endif
-
-.SUFFIXES: .dtb .dts .dtbo .dtso
-
-.PATH: ${SYSDIR}/gnu/dts/${MACHINE} ${SYSDIR}/dts/${MACHINE} ${SYSDIR}/dts/${MACHINE}/overlays
-
-DTB=${DTS:R:S/$/.dtb/}
-DTBO=${DTSO:R:S/$/.dtbo/}
-
+.if !target(install) && !target(realinstall)
 all: ${DTB} ${DTBO}
-
-.if defined(DTS)
-.export DTC ECHO
-.for _dts in ${DTS}
-${_dts:R:S/$/.dtb/}:	${_dts} ${OP_META}
-	@${ECHO} Generating ${.TARGET} from ${_dts}
-	@${SYSDIR}/tools/fdt/make_dtb.sh ${SYSDIR} ${_dts} ${.OBJDIR}
-CLEANFILES+=${_dts:R:S/$/.dtb/}
-.endfor
-.endif
-
-.if defined(DTSO)
-.export DTC ECHO
-.for _dtso in ${DTSO}
-${_dtso:R:S/$/.dtbo/}:	${_dtso} ${OP_META}
-	@${ECHO} Generating ${.TARGET} from ${_dtso}
-	@${SYSDIR}/tools/fdt/make_dtbo.sh ${SYSDIR} overlays/${_dtso} ${.OBJDIR}
-CLEANFILES+=${_dtso:R:S/$/.dtbo/}
-.endfor
-.endif
-
-.if !target(install)
-.if !target(realinstall)
 realinstall: _dtbinstall
-.ORDER: beforeinstall _kmodinstall
-_dtbinstall:
-# Need to create this because installkernel doesn't invoke mtree with BSD.root.mtree
-# to make sure the tree is setup properly. We don't recreate it to avoid duplicate
-# entries in the NO_ROOT case.
-	test -d ${DESTDIR}${DTBDIR} || ${INSTALL} -d -o ${DTBOWN} -g ${DTBGRP} ${DESTDIR}${DTBDIR}
-.for _dtb in ${DTB}
-.if ${MACHINE_CPUARCH} == "aarch64"
-	test -d ${DESTDIR}${DTBDIR}/${_dtb:H} || ${INSTALL} -d -o ${DTBOWN} -g ${DTBGRP} ${DESTDIR}${DTBDIR}/${_dtb:H}
-	${INSTALL} -o ${DTBOWN} -g ${DTBGRP} -m ${DTBMODE} \
-	    ${_INSTALLFLAGS} ${_dtb:T} ${DESTDIR}${DTBDIR}/${_dtb:H}
-.else
-	${INSTALL} -o ${DTBOWN} -g ${DTBGRP} -m ${DTBMODE} \
-	    ${_INSTALLFLAGS} ${_dtb} ${DESTDIR}${DTBDIR}/
-.endif
-.endfor
-	test -d ${DESTDIR}${DTBODIR} || ${INSTALL} -d -o ${DTBOWN} -g ${DTBGRP} ${DESTDIR}${DTBODIR}
-.for _dtbo in ${DTBO}
-	${INSTALL} -o ${DTBOWN} -g ${DTBGRP} -m ${DTBMODE} \
-	    ${_INSTALLFLAGS} ${_dtbo} ${DESTDIR}${DTBODIR}/
-.endfor
-.endif # !target(realinstall)
-.endif # !target(install)
+.ORDER: beforeinstall _dtbinstall
+
+CLEANFILES+=${DTB} ${DTBO}
+.endif # !target(install) && !target(realinstall)
 
 .include <bsd.dep.mk>
 .include <bsd.obj.mk>

Modified: stable/12/sys/conf/kern.post.mk
==============================================================================
--- stable/12/sys/conf/kern.post.mk	Tue Apr 16 21:02:41 2019	(r346303)
+++ stable/12/sys/conf/kern.post.mk	Tue Apr 16 21:09:57 2019	(r346304)
@@ -8,6 +8,16 @@
 # should be defined in the kern.pre.mk so that port makefiles can
 # override or augment them.
 
+.if defined(DTS) || defined(DTSO)
+.include "dtb.build.mk"
+
+KERNEL_EXTRA+=	${DTB} ${DTBO}
+CLEAN+=		${DTB} ${DTBO}
+
+kernel-install: _dtbinstall
+.ORDER: beforeinstall _dtbinstall
+.endif
+
 # In case the config had a makeoptions DESTDIR...
 .if defined(DESTDIR)
 MKMODULESENV+=	DESTDIR="${DESTDIR}"





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