scripts/genksyms/Makefile

   1
   2 hostprogs-y     := genksyms
   3 always          := $(hostprogs-y)
   4
   5 genksyms-objs   := genksyms.o parse.o lex.o
   6
   7 # -I needed for generated C source (shipped source)
   8 HOSTCFLAGS_parse.o := -Wno-uninitialized -I$(src)
   9
  10 # dependencies on generated files need to be listed explicitly
  11 $(obj)/lex.o: $(obj)/parse.h $(obj)/keywords.c
  12
  13 # -I needed for generated C source (shipped source)
  14 HOSTCFLAGS_lex.o := -I$(src)
  15
  16 ifdef GENERATE_PARSER
  17
  18 # gperf
  19
  20 quiet_cmd_keywords.c = GPERF   $@
  21       cmd_keywords.c = gperf -L ANSI-C -a -C -E -g -H is_reserved_hash  \
  22                        -k 1,3,$$ -N is_reserved_word -p -t $< > $@
  23
  24 $(obj)/keywords.c: $(obj)/keywords.gperf FORCE
  25         $(call if_changed,keywords.c)
  26         cp $@ $@_shipped
  27
  28 # flex
  29
  30 quiet_cmd_lex.c = FLEX    $@
  31       cmd_lex.c = flex -o$@ -d $<
  32
  33 $(obj)/lex.c: $(obj)/lex.l $(obj)/keywords.c FORCE
  34         $(call if_changed,lex.c)
  35         cp $@ $@_shipped
  36
  37 # bison
  38
  39 quiet_cmd_parse.c = BISON   $@
  40       cmd_parse.c = bison -o$@ -dtv $(filter-out FORCE,$^)
  41
  42 $(obj)/parse.c: $(obj)/parse.y FORCE
  43         $(call if_changed,parse.c)
  44         cp $@ $@_shipped
  45         cp $(@:.c=.h) $(@:.c=.h)_shipped
  46
  47 $(obj)/parse.h: $(obj)/parse.c ;
  48
  49 clean-files     += parse.output
  50
  51 endif
  52
  53 targets += keywords.c lex.c parse.c parse.h