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From:   Masahiro Yamada <yamada.masahiro@socionext.com>
To:     linux-kbuild@vger.kernel.org
Cc:     Ulf Magnusson <ulfalizer@gmail.com>, linux-kernel@vger.kernel.org,
        Masahiro Yamada <yamada.masahiro@socionext.com>
Subject: [PATCH 01/27] kconfig: fix file name and line number of warn_ignored_character()
Date:   Tue, 11 Dec 2018 20:00:44 +0900
Message-Id: <1544526070-16690-2-git-send-email-yamada.masahiro@socionext.com>
In-Reply-To: <1544526070-16690-1-git-send-email-yamada.masahiro@socionext.com>
References: <1544526070-16690-1-git-send-email-yamada.masahiro@socionext.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Currently, warn_ignore_character() displays invalid file name and
line number.

The lexer should use current_file->name and yylineno, while the parser
should use zconf_curname() and zconf_lineno().

This difference comes from that the lexer is always going ahead
of the parser. The parser needs to look ahead one token to make a
shift/reduce decision, so the lexer is requested to scan more text
from the input file.

This commit fixes the warning message from warn_ignored_character().

[Test Code]

  ----(Kconfig begin)----
  /
  -----(Kconfig end)-----

[Output]

  Before the fix:

  <none>:0:warning: ignoring unsupported character '/'

  After the fix:

  Kconfig:1:warning: ignoring unsupported character '/'

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 scripts/kconfig/zconf.l | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 25bd2b8..eeac64c 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -73,7 +73,7 @@ static void warn_ignored_character(char chr)
 {
 	fprintf(stderr,
 	        "%s:%d:warning: ignoring unsupported character '%c'\n",
-	        zconf_curname(), zconf_lineno(), chr);
+	        current_file->name, yylineno, chr);
 }
 %}
 
-- 
2.7.4