mirror of https://gitee.com/openkylin/linux.git
50 lines
1.1 KiB
Makefile
50 lines
1.1 KiB
Makefile
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hostprogs-y := genksyms
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always := $(hostprogs-y)
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genksyms-objs := genksyms.o parse.o lex.o
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# -I needed for generated C source (shipped source)
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HOSTCFLAGS_parse.o := -Wno-uninitialized -I$(src)
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# dependencies on generated files need to be listed explicitly
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$(obj)/lex.o: $(obj)/parse.h $(obj)/keywords.c
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# -I needed for generated C source (shipped source)
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HOSTCFLAGS_lex.o := -I$(src)
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ifdef GENERATE_PARSER
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# gperf
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quiet_cmd_keywords.c = GPERF $@
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cmd_keywords.c = gperf -L ANSI-C -a -C -E -g -H is_reserved_hash \
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-k 1,3,$$ -N is_reserved_word -p -t $< > $@
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$(obj)/keywords.c: $(obj)/keywords.gperf FORCE
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$(call if_changed,keywords.c)
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# flex
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quiet_cmd_lex.c = FLEX $@
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cmd_lex.c = flex -o$@ -d $(filter-out FORCE,$^)
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$(obj)/lex.c: $(obj)/lex.l $(obj)/parse.h FORCE
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$(call if_changed,lex.c)
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# bison
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quiet_cmd_parse.c = BISON $@
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cmd_parse.c = bison -o$@ -dtv $(filter-out FORCE,$^)
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$(obj)/parse.c: $(obj)/parse.y FORCE
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$(call if_changed,parse.c)
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$(obj)/parse.h: $(obj)/parse.c ;
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clean-files += parse.output
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endif
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targets += keywords.c lex.c parse.c parse.h
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