From: Viresh Kumar <viresh.kumar@linaro.org>
To: Frank Rowand <frowand.list@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
Masahiro Yamada <masahiroy@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
linux-kernel@vger.kernel.org, anmar.oueja@linaro.org,
Bill Mills <bill.mills@linaro.org>,
David Gibson <david@gibson.dropbear.id.au>,
devicetree@vger.kernel.org,
Michal Marek <michal.lkml@markovi.net>
Subject: [PATCH V7 2/6] scripts: dtc: Build fdtoverlay tool
Date: Fri, 29 Jan 2021 12:54:06 +0530 [thread overview]
Message-ID: <4a201dea3ba11a00cab7e936dfc1140dac1a1ae3.1611904394.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1611904394.git.viresh.kumar@linaro.org>
We will start building overlays for platforms soon in the kernel and
would need fdtoverlay going forward. Lets start building it.
The fdtoverlay program applies one or more overlay dtb blobs to a base
dtb blob. The kernel build system would later use fdtoverlay to generate
the overlaid blobs based on platform specific configurations.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
scripts/dtc/Makefile | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index 4852bf44e913..c8c21e0f2531 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -1,13 +1,19 @@
# SPDX-License-Identifier: GPL-2.0
# scripts/dtc makefile
-hostprogs-always-$(CONFIG_DTC) += dtc
+hostprogs-always-$(CONFIG_DTC) += dtc fdtoverlay
hostprogs-always-$(CHECK_DT_BINDING) += dtc
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
srcpos.o checks.o util.o
dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
+# The upstream project builds libfdt as a separate library. We are choosing to
+# instead directly link the libfdt object files into fdtoverlay.
+libfdt-objs := fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o
+libfdt = $(addprefix libfdt/,$(libfdt-objs))
+fdtoverlay-objs := $(libfdt) fdtoverlay.o util.o
+
# Source files need to get at the userspace version of libfdt_env.h to compile
HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
--
2.25.0.rc1.19.g042ed3e048af
next prev parent reply other threads:[~2021-01-29 7:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 7:24 [PATCH V7 0/6] dt: build overlays Viresh Kumar
2021-01-29 7:24 ` [PATCH V7 1/6] scripts: dtc: Fetch fdtoverlay.c from external DTC project Viresh Kumar
2021-01-29 7:24 ` Viresh Kumar [this message]
2021-01-29 7:24 ` [PATCH V7 3/6] scripts: dtc: Remove the unused fdtdump.c file Viresh Kumar
2021-01-29 7:24 ` [PATCH V7 4/6] kbuild: Add support to build overlays (%.dtbo) Viresh Kumar
2021-02-05 9:02 ` Geert Uytterhoeven
2021-02-05 9:25 ` Viresh Kumar
2021-02-05 9:41 ` Geert Uytterhoeven
2021-02-05 9:55 ` Viresh Kumar
2021-02-05 10:17 ` Geert Uytterhoeven
2021-02-05 21:08 ` Rob Herring
2021-02-06 11:03 ` Geert Uytterhoeven
2021-02-25 1:32 ` Frank Rowand
2021-03-03 5:21 ` Viresh Kumar
2021-03-03 10:44 ` Geert Uytterhoeven
2021-03-03 10:54 ` Viresh Kumar
2021-02-06 7:28 ` David Gibson
2021-01-29 7:24 ` [PATCH V7 5/6] of: unittest: Create overlay_common.dtsi and testcases_common.dtsi Viresh Kumar
2021-02-18 21:02 ` Frank Rowand
2021-02-19 5:20 ` Frank Rowand
2021-02-19 5:28 ` Viresh Kumar
2021-01-29 7:24 ` [PATCH V7 6/6] of: unittest: Statically apply overlays using fdtoverlay Viresh Kumar
2021-02-04 1:54 ` Rob Herring
2021-02-04 7:41 ` Viresh Kumar
2021-02-08 11:18 ` Viresh Kumar
2021-02-08 14:21 ` Rob Herring
2021-02-09 4:04 ` Viresh Kumar
2021-02-09 10:10 ` Viresh Kumar
2021-02-16 10:39 ` Viresh Kumar
2021-02-04 15:58 ` [PATCH V7 0/6] dt: build overlays Rob Herring
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