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Commit 7a88488b authored by Roman Zippel's avatar Roman Zippel Committed by Linus Torvalds
Browse files

[PATCH] kconfig: use gperf for kconfig keywords 



Use gperf to generate a hash for the kconfig keywords.  This greatly reduces
the size of the generated scanner and makes it easier to extend kconfig.

Signed-off-by: default avatarRoman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 491d7110

scripts/kconfig/Makefile

+8 −3
Original line number Diff line number Diff line
@@ -114,7 +114,7 @@ gconf-objs := gconf.o kconfig_load.o zconf.tab.o 
endif



clean-files	:= lkc_defs.h qconf.moc .tmp_qtcheck \

		   .tmp_gtkcheck zconf.tab.c lex.zconf.c

		   .tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c



# Needed for systems without gettext

KBUILD_HAVE_NLS := $(shell \
@@ -201,7 +201,7 @@ $(obj)/.tmp_gtkcheck: 
	fi

endif



$(obj)/zconf.tab.o: $(obj)/lex.zconf.c

$(obj)/zconf.tab.o: $(obj)/lex.zconf.c $(obj)/zconf.hash.c



$(obj)/kconfig_load.o: $(obj)/lkc_defs.h
@@ -217,7 +217,7 @@ $(obj)/lkc_defs.h: $(src)/lkc_proto.h 




###

# The following requires flex/bison

# The following requires flex/bison/gperf

# By default we use the _shipped versions, uncomment the following line if

# you are modifying the flex/bison src.

# LKC_GENPARSER := 1
@@ -226,6 +226,7 @@ ifdef LKC_GENPARSER 


$(obj)/zconf.tab.c: $(src)/zconf.y

$(obj)/lex.zconf.c: $(src)/zconf.l

$(obj)/zconf.hash.c: $(src)/zconf.gperf



%.tab.c: %.y

	bison -l -b $* -p $(notdir $*) $<
@@ -235,4 +236,8 @@ lex.%.c: %.l 
	flex -L -P$(notdir $*) -o$@ $<

	cp $@ $@_shipped



%.hash.c: %.gperf

	gperf < $< > $@

	cp $@ $@_shipped



endif