Commit 765f4cde authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kconfig: use default 'yy' prefix for lexer and parser 



Flex and Bison provide an option to change the prefix of globally-
visible symbols.  This is useful to link multiple lexers and/or
parsers into the same executable.  However, Kconfig (and any other
host programs in kernel) uses a single lexer and parser.  I do not
see a good reason to change the default 'yy' prefix.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: default avatarUlf Magnusson <ulfalizer@gmail.com>
parent 84dd95d4

scripts/kconfig/Makefile

+0 −3
Original line number Diff line number Diff line
@@ -211,9 +211,6 @@ HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) 
HOSTCFLAGS_zconf.lex.o	:= -I$(src)

HOSTCFLAGS_zconf.tab.o	:= -I$(src)



LEX_PREFIX_zconf	:= zconf

YACC_PREFIX_zconf	:= zconf



HOSTLOADLIBES_qconf	= $(KC_QT_LIBS)

HOSTCXXFLAGS_qconf.o	= $(KC_QT_CFLAGS)

scripts/kconfig/zconf.l

+8 −8
Original line number Diff line number Diff line
@@ -106,11 +106,11 @@ n [A-Za-z0-9_-] 
		current_pos.file = current_file;

		current_pos.lineno = current_file->lineno;

		if (id && id->flags & TF_COMMAND) {

			zconflval.id = id;

			yylval.id = id;

			return id->token;

		}

		alloc_string(yytext, yyleng);

		zconflval.string = text;

		yylval.string = text;

		return T_WORD;

	}

	.	warn_ignored_character(*yytext);
@@ -142,11 +142,11 @@ n [A-Za-z0-9_-] 
	({n}|[/.])+	{

		const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);

		if (id && id->flags & TF_PARAM) {

			zconflval.id = id;

			yylval.id = id;

			return id->token;

		}

		alloc_string(yytext, yyleng);

		zconflval.string = text;

		yylval.string = text;

		return T_WORD;

	}

	#.*	/* comment */
@@ -161,7 +161,7 @@ n [A-Za-z0-9_-] 
<STRING>{

	[^'"\\\n]+/\n	{

		append_string(yytext, yyleng);

		zconflval.string = text;

		yylval.string = text;

		return T_WORD_QUOTE;

	}

	[^'"\\\n]+	{
@@ -169,7 +169,7 @@ n [A-Za-z0-9_-] 
	}

	\\.?/\n	{

		append_string(yytext + 1, yyleng - 1);

		zconflval.string = text;

		yylval.string = text;

		return T_WORD_QUOTE;

	}

	\\.?	{
@@ -178,7 +178,7 @@ n [A-Za-z0-9_-] 
	\'|\"	{

		if (str == yytext[0]) {

			BEGIN(PARAM);

			zconflval.string = text;

			yylval.string = text;

			return T_WORD_QUOTE;

		} else

			append_string(yytext, 1);
@@ -261,7 +261,7 @@ void zconf_starthelp(void) 


static void zconf_endhelp(void)

{

	zconflval.string = text;

	yylval.string = text;

	BEGIN(INITIAL);

}

scripts/kconfig/zconf.y

+11 −11
Original line number Diff line number Diff line
@@ -20,10 +20,10 @@ 


int cdebug = PRINTD;



extern int zconflex(void);

int yylex(void);

static void yyerror(const char *err);

static void zconfprint(const char *err, ...);

static void zconf_error(const char *err, ...);

static void zconferror(const char *err);

static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);



struct symbol *symbol_hash[SYMBOL_HASHSIZE];
@@ -531,9 +531,9 @@ void conf_parse(const char *name) 
	_menu_init();



	if (getenv("ZCONF_DEBUG"))

		zconfdebug = 1;

	zconfparse();

	if (zconfnerrs)

		yydebug = 1;

	yyparse();

	if (yynerrs)

		exit(1);

	if (!modules_sym)

		modules_sym = sym_find( "n" );
@@ -546,9 +546,9 @@ void conf_parse(const char *name) 
	menu_finalize(&rootmenu);

	for_all_symbols(i, sym) {

		if (sym_check_deps(sym))

			zconfnerrs++;

			yynerrs++;

	}

	if (zconfnerrs)

	if (yynerrs)

		exit(1);

	sym_set_change_count(1);

}
@@ -573,7 +573,7 @@ static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtok 
	if (id->token != endtoken) {

		zconf_error("unexpected '%s' within %s block",

			id->name, zconf_tokenname(starttoken));

		zconfnerrs++;

		yynerrs++;

		return false;

	}

	if (current_menu->file != current_file) {
@@ -582,7 +582,7 @@ static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtok 
		fprintf(stderr, "%s:%d: location of the '%s'\n",

			current_menu->file->name, current_menu->lineno,

			zconf_tokenname(starttoken));

		zconfnerrs++;

		yynerrs++;

		return false;

	}

	return true;
@@ -603,7 +603,7 @@ static void zconf_error(const char *err, ...) 
{

	va_list ap;



	zconfnerrs++;

	yynerrs++;

	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());

	va_start(ap, err);

	vfprintf(stderr, err, ap);
@@ -611,7 +611,7 @@ static void zconf_error(const char *err, ...) 
	fprintf(stderr, "\n");

}



static void zconferror(const char *err)

static void yyerror(const char *err)

{

	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);

}

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