From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1js8Xs-0007tW-3C for barebox@lists.infradead.org; Sun, 05 Jul 2020 17:35:16 +0000 Date: Sun, 5 Jul 2020 19:35:14 +0200 From: Sascha Hauer Message-ID: <20200705173513.GX15485@pengutronix.de> References: <20200702085934.5827-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200702085934.5827-1-a.fatoum@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH] kbuild: add dtbs target for building all dtbs of an ARCH To: Ahmad Fatoum Cc: barebox@lists.infradead.org On Thu, Jul 02, 2020 at 10:59:34AM +0200, Ahmad Fatoum wrote: > As described in the documentation, upstream device trees extended by > barebox should take care to cause compile errors, not runtime errors, > when the paths they extend disappear. This way, breakage can be easily > detected when synchronizing the dts/ directory and fixed right then. > > Make this process easier by providing a dtbs target that builds all > device trees in arch/$(SRCARCH)/dts/ if available. > > Signed-off-by: Ahmad Fatoum > --- > Makefile | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/Makefile b/Makefile > index 0da032532712..9fa741966c00 100644 > --- a/Makefile > +++ b/Makefile > @@ -990,6 +990,20 @@ include/generated/version.h: FORCE > include/generated/utsrelease.h: include/config/kernel.release FORCE > $(call filechk,utsrelease.h) > > +# --------------------------------------------------------------------------- > +# Devicetree files > + > +ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/dts/),) > +dtstree := arch/$(SRCARCH)/dts > +endif > + > +ifneq ($(dtstree),) > + > +PHONY += dtbs > +dtbs: $(patsubst $(srctree)/%.dts,$(objtree)/%.dtb,$(wildcard $(srctree)/$(dtstree)/*.dts)) > + > +endif Can we do this in a way that only rebuilds the changed files and not every dts again? Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox