Re: [PATCH] binfmt_misc: pass binfmt_misc P flag to the interpreter

From: Laurent Vivier
Date: Fri Mar 06 2020 - 03:22:16 EST


Le 06/03/2020 Ã 09:13, Florian Weimer a ÃcritÂ:
> * YunQiang Su:
>
>> + if (bprm->interp_flags & BINPRM_FLAGS_PRESERVE_ARGV0)
>> + flags |= AT_FLAGS_PRESERVE_ARGV0;
>> + NEW_AUX_ENT(AT_FLAGS, flags);
>
> Is it necessary to reuse AT_FLAGS? I think it's cleaner to define a
> separate AT_ tag dedicated to binfmt_misc.
>

Not necessary, but it seemed simpler and cleaner to re-use a flag that
is marked as unused and with a name matching the new role. It avoids to
patch other packages (like glibc) to add it as it is already defined.

Thanks,
Laurent