linux-imx/scripts/dtc/Makefile
Uwe Kleine-König efe84d408b scripts/dtc: only append to HOST_EXTRACFLAGS instead of overwriting
When building with

	$ HOST_EXTRACFLAGS=-g make

the expectation is that host tools are built with debug informations.
This however doesn't happen if the Makefile assigns a new value to the
HOST_EXTRACFLAGS instead of appending to it. So use += instead of := for
the first assignment.

Fixes: e3fd9b5384 ("scripts/dtc: consolidate include path options in Makefile")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-09-29 15:48:08 -05:00

1.2 KiB

SPDX-License-Identifier: GPL-2.0

scripts/dtc makefile

hostprogs-always-$(CONFIG_DTC) += dtc hostprogs-always-$(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

Source files need to get at the userspace version of libfdt_env.h to compile

HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt

ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),) ifneq ($(CHECK_DT_BINDING)$(CHECK_DTBS),) $(error dtc needs libyaml for DT schema validation support.
Install the necessary libyaml development package.) endif HOST_EXTRACFLAGS += -DNO_YAML else dtc-objs += yamltree.o

To include <yaml.h> installed in a non-default path

HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)

To link libyaml installed in a non-default path

HOSTLDLIBS_dtc := $(shell pkg-config yaml-0.1 --libs) endif

Generated files need one more search path to include headers in source tree

HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src) HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)

dependencies on generated files need to be listed explicitly

$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h