修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/scripts/dtc/Makefile
..
..
@@ -1,19 +1,33 @@
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 # SPDX-License-Identifier: GPL-2.0
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 # scripts/dtc makefile
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-hostprogs-y	:= dtc
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-always		:= $(hostprogs-y)
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+hostprogs-always-$(CONFIG_DTC)		+= dtc
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+hostprogs-always-$(CHECK_DT_BINDING)	+= dtc
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 dtc-objs	:= dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
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 		   srcpos.o checks.o util.o
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 dtc-objs	+= dtc-lexer.lex.o dtc-parser.tab.o
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 # Source files need to get at the userspace version of libfdt_env.h to compile
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-HOST_EXTRACFLAGS := -I$(src)/libfdt
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+HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
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+
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+ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),)
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+ifneq ($(CHECK_DT_BINDING)$(CHECK_DTBS),)
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+$(error dtc needs libyaml for DT schema validation support. \
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+	Install the necessary libyaml development package.)
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+endif
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+HOST_EXTRACFLAGS += -DNO_YAML
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+else
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+dtc-objs	+= yamltree.o
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+# To include <yaml.h> installed in a non-default path
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+HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)
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+# To link libyaml installed in a non-default path
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+HOSTLDLIBS_dtc	:= $(shell pkg-config --libs yaml-0.1)
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+endif
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 # Generated files need one more search path to include headers in source tree
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-HOSTCFLAGS_dtc-lexer.lex.o := -I$(src)
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-HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
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+HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
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+HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)
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 # dependencies on generated files need to be listed explicitly
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 $(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h