Commit 0da6bcd9 authored by Viresh Kumar's avatar Viresh Kumar Committed by Rob Herring
Browse files

scripts: dtc: Build fdtoverlay tool 



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: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/4a201dea3ba11a00cab7e936dfc1140dac1a1ae3.1611904394.git.viresh.kumar@linaro.org
parent 79edff12

scripts/dtc/Makefile

+7 −1
Original line number Diff line number Diff line 
# 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