On Wed, Sep 13, 2017 at 02:23:22 +0300, Valery Ushakov wrote:
> The two approaches I can think of are to use posix_memalign+memset
> instead of calloc and to use calloc and manually re-align the result.
>
> So either
>
> newthread = calloc(1, __pthread_st_size + ~RW_THREAD);
> if ((uintptr_t)newthread & ~RW_THREAD) {
> newthread = (pthread_t)(((uintptr_t)(newthread)
> + ~RW_THREAD) & RW_THREAD);
> }
As someone kindly pointed out privately, this has the problem of
losing the original pointer. Sorry, I posted still in the heat of the
(rather long) chase.
-uwe
