On Fri, Mar 2, 2018 at 8:05 AM, Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx>
> ---
>
> 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@xxxxxxxxx>
Cheers,
Ulf
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