From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt

---
 kernel/scripts/dtc/Makefile |   24 +++++++++++++++++++-----
 1 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/kernel/scripts/dtc/Makefile b/kernel/scripts/dtc/Makefile
index 1c943e0..f1d2017 100644
--- a/kernel/scripts/dtc/Makefile
+++ b/kernel/scripts/dtc/Makefile
@@ -1,19 +1,33 @@
 # SPDX-License-Identifier: GPL-2.0
 # scripts/dtc makefile
 
-hostprogs-y	:= dtc
-always		:= $(hostprogs-y)
+hostprogs-always-$(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$(src)/libfdt
+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 --libs yaml-0.1)
+endif
 
 # Generated files need one more search path to include headers in source tree
-HOSTCFLAGS_dtc-lexer.lex.o := -I$(src)
-HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
+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

--
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