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scripts/dtc: consolidate include path options in Makefile 

It is tedious to specify extra compiler options for every file.
HOST_EXTRACFLAGS is useful to add options to all files in a
directory.

-I$(src)/libfdt is needed for all the files in this directory
to include libfdt_env.h etc. from scripts/dtc/libfdt/.

On the other hand, -I$(src) is used to include check-in headers
from generated C files.  Thus, I added it only to dtc-lexer.lex.o
and dtc-parser.tab.o .

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Masahiro Yamada 2018-07-04 10:59:23 +09:00
parent ad1d697358
commit e3fd9b5384
1 changed files with 4 additions and 14 deletions
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18
scripts/dtc/Makefile
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@ -9,21 +9,11 @@ dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.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$(src)/libfdt
HOSTCFLAGS_DTC := -I$(src) -I$(src)/libfdt
HOSTCFLAGS_checks.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_data.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_dtc.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_flattree.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_fstree.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_livetree.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_srcpos.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_treesource.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_util.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_dtc-lexer.lex.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_dtc-parser.tab.o := $(HOSTCFLAGS_DTC)
# Generated files need one more search path to include headers in source tree
HOSTCFLAGS_dtc-lexer.lex.o := -I$(src)
HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
# dependencies on generated files need to be listed explicitly
$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h