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Re: MPS symbols
From: |
Gerd Möllmann |
Subject: |
Re: MPS symbols |
Date: |
Fri, 28 Jun 2024 14:13:45 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Helmut Eller <eller.helmut@gmail.com> writes:
> On Fri, Jun 28 2024, Gerd Möllmann wrote:
>
>> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>>
>>> Forgot something. While looking at the scanner, I wondered if we could
>>> remove the is_mps check from fix_lisp_obj now that we have the dump
>>> in MPS...
>>
>> Let's find out, pushed. Works for me :-)
>
> I think this uncovered a bug. Now this
>
> emacs -Q -eval '(progn (view-hello-file) (forward-line 7) (dotimes (_ 5)
> (redisplay) (igc--collect) (forward-line)))' -f kill-emacs
>
> causes a SIGSEGV in fix_font,
>
> case FONT_OBJECT_MAX:
> {
> struct font *f = (struct font *)v;
> const Lisp_Object *type = &f->driver->type;
> IGC_FIX12_OBJ (ss, igc_const_cast (Lisp_Object *, type));
> }
>
> It turns out that f->driver is the variable xfont_driver and it is
> actually const and the type field is a builtin symbol. So it looks like
> we can remove fix_font completely.
Hm, okay. Can you see why is segfaults? I'm wondering because I'd have
thought that we'd crash all over the place if we couldn't handle
built-in symbols...
- MPS symbols, Helmut Eller, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Helmut Eller, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Helmut Eller, 2024/06/28
- Re: MPS symbols,
Gerd Möllmann <=
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Eli Zaretskii, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Helmut Eller, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Gerd Möllmann, 2024/06/28
- Re: MPS symbols, Helmut Eller, 2024/06/28
- Re: MPS symbols, Eli Zaretskii, 2024/06/28
- Re: MPS symbols, Helmut Eller, 2024/06/28
- Re: MPS symbols, Eli Zaretskii, 2024/06/28