[PATCH 2/2] nptl: Enable MTE for stacks created for threads.

[Florian Weimer]

* Cupertino Miranda:

> diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
> index 800ca89720..6155157063 100644
> --- a/nptl/allocatestack.c
> +++ b/nptl/allocatestack.c
> @@ -153,7 +153,8 @@ static int allocate_stack_mode = ALLOCATE_GUARD_MADV_GUARD;
>  static inline int stack_prot (void)
>  {
>    return (PROT_READ | PROT_WRITE
> -	  | ((GL(dl_stack_flags) & PF_X) ? PROT_EXEC : 0));
> +	  | ((GL(dl_stack_flags) & PF_X) ? PROT_EXEC : 0)
> +	  | stack_mem_tagging_prot ());
>  }

I think we should clean this up and arrange for the dynamic linker to
determine the PROT_* flags for stacks created at run time, so that we
can use that variable directly without further processing.

Thanks,
Florian