[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: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/scripts/kconfig/zconf.gperf b/scripts/kconfig/zconf.gperf
new file mode 100644
index 000000000000..c9d81cf5d7fb
--- /dev/null
+++ b/scripts/kconfig/zconf.gperf
@@ -0,0 +1,43 @@
+%language=ANSI-C
+%define hash-function-name kconf_id_hash
+%define lookup-function-name kconf_id_lookup
+%define string-pool-name kconf_id_strings
+%compare-strncmp
+%enum
+%pic
+%struct-type
+
+struct kconf_id;
+
+%%
+mainmenu,       T_MAINMENU,     TF_COMMAND
+menu,           T_MENU,         TF_COMMAND
+endmenu,        T_ENDMENU,      TF_COMMAND
+source,         T_SOURCE,       TF_COMMAND
+choice,         T_CHOICE,       TF_COMMAND
+endchoice,      T_ENDCHOICE,    TF_COMMAND
+comment,        T_COMMENT,      TF_COMMAND
+config,         T_CONFIG,       TF_COMMAND
+menuconfig,     T_MENUCONFIG,   TF_COMMAND
+help,           T_HELP,         TF_COMMAND
+if,             T_IF,           TF_COMMAND|TF_PARAM
+endif,          T_ENDIF,        TF_COMMAND
+depends,        T_DEPENDS,      TF_COMMAND
+requires,       T_REQUIRES,     TF_COMMAND
+optional,       T_OPTIONAL,     TF_COMMAND
+default,        T_DEFAULT,      TF_COMMAND
+prompt,         T_PROMPT,       TF_COMMAND
+tristate,       T_TRISTATE,     TF_COMMAND
+def_tristate,   T_DEF_TRISTATE, TF_COMMAND
+bool,           T_BOOLEAN,      TF_COMMAND
+boolean,        T_BOOLEAN,      TF_COMMAND
+def_bool,       T_DEF_BOOLEAN,  TF_COMMAND
+def_boolean,    T_DEF_BOOLEAN,  TF_COMMAND
+int,            T_INT,          TF_COMMAND
+hex,            T_HEX,          TF_COMMAND
+string,         T_STRING,       TF_COMMAND
+select,         T_SELECT,       TF_COMMAND
+enable,         T_SELECT,       TF_COMMAND
+range,          T_RANGE,        TF_COMMAND
+on,             T_ON,           TF_PARAM
+%%