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Code Issues Releases Wiki Activity

kconfig: do not delay the cur_filename update 

Currently, cur_filename is updated at the first token of each statement.
However, this seems unnecessary based on my understanding; the parser
can use the same variable as the lexer tracks.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2024-02-03 00:58:12 +09:00
parent fe273c6fc3
commit d3e4a68fe2
2 changed files with 15 additions and 10 deletions
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17
scripts/kconfig/lexer.l
View File

@ -274,24 +274,17 @@ repeat:
token = yylex1();
if (prev_token == T_EOL || prev_token == T_HELPTEXT) {
if (token == T_EOL) {
if (token == T_EOL)
/* Do not pass unneeded T_EOL to the parser. */
goto repeat;
} else {
else
/*
* For the parser, update file/lineno at the first token
* For the parser, update lineno at the first token
* of each statement. Generally, \n is a statement
* terminator in Kconfig, but it is not always true
* because \n could be escaped by a backslash.
*
* FIXME:
* cur_filename and cur_lineno are used even after
* yyparse(); menu_finalize() calls menu_add_symbol().
* This should be fixed.
*/
cur_filename = current_file ? current_file->name : "<none>";
cur_lineno = yylineno;
}
}
if (prev_prev_token == T_EOL && prev_token == T_WORD &&
@ -407,6 +400,7 @@ void zconf_initscan(const char *name)
}
current_file = file_lookup(name);
cur_filename = current_file->name;
yylineno = 1;
}
@ -448,6 +442,7 @@ void zconf_nextfile(const char *name)
}
yylineno = 1;
cur_filename = file->name;
current_file = file;
}
@ -456,6 +451,8 @@ static void zconf_endfile(void)
struct buffer *tmp;
current_file = current_file->parent;
if (current_file)
cur_filename = current_file->name;
if (!current_buf)
return;

8
scripts/kconfig/parser.y
View File

@ -488,6 +488,14 @@ void conf_parse(const char *name)
yydebug = 1;
yyparse();
/*
* FIXME:
* cur_filename and cur_lineno are used even after yyparse();
* menu_finalize() calls menu_add_symbol(). This should be fixed.
*/
cur_filename = "<none>";
cur_lineno = 0;
str_printf(&autoconf_cmd,
"\n"
"$(autoconfig): $(deps_config)\n"