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* [PATCH] kconfig: fix line number in recursive inclusion error message
@ 2018-03-02  7:05 Masahiro Yamada
  2018-03-02  9:43 ` Ulf Magnusson
  2018-03-03 15:34 ` Masahiro Yamada
  0 siblings, 2 replies; 3+ messages in thread
From: Masahiro Yamada @ 2018-03-02  7:05 UTC (permalink / raw)
  To: linux-kbuild
  Cc: Sam Ravnborg, Ulf Magnusson, Randy Dunlap, Masahiro Yamada, linux-kernel

When recursive inclusion is detected, the line number of the last
'included from:' is wrong.

[Test Case]

Kconfig:
  -------->8--------
  source "Kconfig2"
  -------->8--------

Kconfig2:
  -------->8--------
  source "Kconfig3"
  -------->8--------

Kconfig3:
  -------->8--------
  source "Kconfig"
  -------->8--------

[Result]

  $ make allyesconfig
  scripts/kconfig/conf  --allyesconfig Kconfig
  Kconfig:1: recursive inclusion detected. Inclusion path:
    current file : 'Kconfig'
    included from: 'Kconfig3:1'
    included from: 'Kconfig2:1'
    included from: 'Kconfig:3'
  scripts/kconfig/Makefile:89: recipe for target 'allyesconfig' failed
  make[1]: *** [allyesconfig] Error 1
  Makefile:512: recipe for target 'allyesconfig' failed
  make: *** [allyesconfig] Error 2

where we expect

    current file : 'Kconfig'
    included from: 'Kconfig3:1'
    included from: 'Kconfig2:1'
    included from: 'Kconfig:1'

The 'iter->lineno+1' in the second fpinrtf() should be 'iter->lineno-1'.
I refactored the code to merge two fprintf().

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

 scripts/kconfig/zconf.l | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 02de6fe..88b650e 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -332,16 +332,12 @@ void zconf_nextfile(const char *name)
 				"Inclusion path:\n  current file : '%s'\n",
 				zconf_curname(), zconf_lineno(),
 				zconf_curname());
-			iter = current_file->parent;
-			while (iter && \
-			       strcmp(iter->name,current_file->name)) {
-				fprintf(stderr, "  included from: '%s:%d'\n",
-					iter->name, iter->lineno-1);
+			iter = current_file;
+			do {
 				iter = iter->parent;
-			}
-			if (iter)
 				fprintf(stderr, "  included from: '%s:%d'\n",
-					iter->name, iter->lineno+1);
+					iter->name, iter->lineno - 1);
+			} while (strcmp(iter->name, current_file->name));
 			exit(1);
 		}
 	}
-- 
2.7.4

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] kconfig: fix line number in recursive inclusion error message
  2018-03-02  7:05 [PATCH] kconfig: fix line number in recursive inclusion error message Masahiro Yamada
@ 2018-03-02  9:43 ` Ulf Magnusson
  2018-03-03 15:34 ` Masahiro Yamada
  1 sibling, 0 replies; 3+ messages in thread
From: Ulf Magnusson @ 2018-03-02  9:43 UTC (permalink / raw)
  To: Masahiro Yamada
  Cc: Linux Kbuild mailing list, Sam Ravnborg, Randy Dunlap,
	Linux Kernel Mailing List

On Fri, Mar 2, 2018 at 8:05 AM, Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
> When recursive inclusion is detected, the line number of the last
> 'included from:' is wrong.
>
> [Test Case]
>
> Kconfig:
>   -------->8--------
>   source "Kconfig2"
>   -------->8--------
>
> Kconfig2:
>   -------->8--------
>   source "Kconfig3"
>   -------->8--------
>
> Kconfig3:
>   -------->8--------
>   source "Kconfig"
>   -------->8--------
>
> [Result]
>
>   $ make allyesconfig
>   scripts/kconfig/conf  --allyesconfig Kconfig
>   Kconfig:1: recursive inclusion detected. Inclusion path:
>     current file : 'Kconfig'
>     included from: 'Kconfig3:1'
>     included from: 'Kconfig2:1'
>     included from: 'Kconfig:3'
>   scripts/kconfig/Makefile:89: recipe for target 'allyesconfig' failed
>   make[1]: *** [allyesconfig] Error 1
>   Makefile:512: recipe for target 'allyesconfig' failed
>   make: *** [allyesconfig] Error 2
>
> where we expect
>
>     current file : 'Kconfig'
>     included from: 'Kconfig3:1'
>     included from: 'Kconfig2:1'
>     included from: 'Kconfig:1'
>
> The 'iter->lineno+1' in the second fpinrtf() should be 'iter->lineno-1'.
> I refactored the code to merge two fprintf().
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
>
>  scripts/kconfig/zconf.l | 12 ++++--------
>  1 file changed, 4 insertions(+), 8 deletions(-)
>
> diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
> index 02de6fe..88b650e 100644
> --- a/scripts/kconfig/zconf.l
> +++ b/scripts/kconfig/zconf.l
> @@ -332,16 +332,12 @@ void zconf_nextfile(const char *name)
>                                 "Inclusion path:\n  current file : '%s'\n",
>                                 zconf_curname(), zconf_lineno(),
>                                 zconf_curname());
> -                       iter = current_file->parent;
> -                       while (iter && \
> -                              strcmp(iter->name,current_file->name)) {
> -                               fprintf(stderr, "  included from: '%s:%d'\n",
> -                                       iter->name, iter->lineno-1);
> +                       iter = current_file;
> +                       do {
>                                 iter = iter->parent;
> -                       }
> -                       if (iter)
>                                 fprintf(stderr, "  included from: '%s:%d'\n",
> -                                       iter->name, iter->lineno+1);
> +                                       iter->name, iter->lineno - 1);
> +                       } while (strcmp(iter->name, current_file->name));
>                         exit(1);
>                 }
>         }
> --
> 2.7.4
>

Much neater.

Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>

Cheers,
Ulf

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] kconfig: fix line number in recursive inclusion error message
  2018-03-02  7:05 [PATCH] kconfig: fix line number in recursive inclusion error message Masahiro Yamada
  2018-03-02  9:43 ` Ulf Magnusson
@ 2018-03-03 15:34 ` Masahiro Yamada
  1 sibling, 0 replies; 3+ messages in thread
From: Masahiro Yamada @ 2018-03-03 15:34 UTC (permalink / raw)
  To: Linux Kbuild mailing list
  Cc: Sam Ravnborg, Ulf Magnusson, Randy Dunlap, Masahiro Yamada,
	Linux Kernel Mailing List

2018-03-02 16:05 GMT+09:00 Masahiro Yamada <yamada.masahiro@socionext.com>:
> When recursive inclusion is detected, the line number of the last
> 'included from:' is wrong.
>
> [Test Case]
>
> Kconfig:
>   -------->8--------
>   source "Kconfig2"
>   -------->8--------
>
> Kconfig2:
>   -------->8--------
>   source "Kconfig3"
>   -------->8--------
>
> Kconfig3:
>   -------->8--------
>   source "Kconfig"
>   -------->8--------
>
> [Result]
>
>   $ make allyesconfig
>   scripts/kconfig/conf  --allyesconfig Kconfig
>   Kconfig:1: recursive inclusion detected. Inclusion path:
>     current file : 'Kconfig'
>     included from: 'Kconfig3:1'
>     included from: 'Kconfig2:1'
>     included from: 'Kconfig:3'
>   scripts/kconfig/Makefile:89: recipe for target 'allyesconfig' failed
>   make[1]: *** [allyesconfig] Error 1
>   Makefile:512: recipe for target 'allyesconfig' failed
>   make: *** [allyesconfig] Error 2
>
> where we expect
>
>     current file : 'Kconfig'
>     included from: 'Kconfig3:1'
>     included from: 'Kconfig2:1'
>     included from: 'Kconfig:1'
>
> The 'iter->lineno+1' in the second fpinrtf() should be 'iter->lineno-1'.
> I refactored the code to merge two fprintf().
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
>

Applied to linux-kbuild/fixes.



-- 
Best Regards
Masahiro Yamada

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2018-03-02  7:05 [PATCH] kconfig: fix line number in recursive inclusion error message Masahiro Yamada
2018-03-02  9:43 ` Ulf Magnusson
2018-03-03 15:34 ` Masahiro Yamada

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