Re: san_ignore_object not found at link time

[Andreas Schwab]

On Aug 01 2020, Eli Zaretskii wrote:

>> 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 has nothing to do with XLP.  If you add a wide integer to a pointer
you still have a pointer, whereas if you add a wide integer to a pointer
converted to intptr_t, the result is of the widened type.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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