Re: san_ignore_object not found at link time

[Philipp Stephani]

Am Sa., 1. Aug. 2020 um 20:03 Uhr schrieb Eli Zaretskii <eliz@gnu.org>:
>
> > Date: Sat, 01 Aug 2020 20:51:42 +0300
> > From: Eli Zaretskii <eliz@gnu.org>
> > Cc: alan@idiocy.org, emacs-devel@gnu.org, p.stephani2@gmail.com,
> >  raman@google.com
> >
> >    4641 |   void *po = (char *) ((intptr_t) (char *) XLP (obj)
> >         |              ^
> >
> > This is a 32-bit build --with-wide-int, in case it matters, where
> > EMACS_INT is a 64-bit data type.
>
> Btw, I'm probably missing something, because I don't understand how
> XLP in its current definition can work in a --with-wide-int build,
> where the size of a Lisp_Object is wider than both intptr_t and a
> 'void *'.

This is somewhat subtle, but I think in this case it works because the
function bails out for the int types, and all other types are tagged
pointers.