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bug#33294: xwidget-insert crashes Emacs


From: Evgeny Zajcev
Subject: bug#33294: xwidget-insert crashes Emacs
Date: Mon, 12 Nov 2018 17:44:22 +0300

пт, 9 нояб. 2018 г. в 17:57, Eli Zaretskii <address@hidden>:
[...]

> diff --git a/src/data.c b/src/data.c
> index 8d58cbd941..eea9ccedbb 100644
> --- a/src/data.c
> +++ b/src/data.c
> @@ -276,10 +276,12 @@ for example, (type-of 1) returns `integer'.  */)
>            }
>          case PVEC_MODULE_FUNCTION:
>            return Qmodule_function;
> -        /* "Impossible" cases.  */
>          case PVEC_XWIDGET:
> -        case PVEC_OTHER:
> +          return Qxwidget;
>          case PVEC_XWIDGET_VIEW:
> +          return Qxwidget_view;
> +        /* "Impossible" cases.  */
> +        case PVEC_OTHER:
>          case PVEC_SUB_CHAR_TABLE:
>          case PVEC_FREE: ;
>          }
> @@ -3756,6 +3758,8 @@ syms_of_data (void)
>    DEFSYM (Qfont_entity, "font-entity");
>    DEFSYM (Qfont_object, "font-object");
>    DEFSYM (Qterminal, "terminal");
> +  DEFSYM (Qxwidget, "xwidget");
> +  DEFSYM (Qxwidget_view, "xwidget-view");

>    DEFSYM (Qdefun, "defun");

Evgeny, does this patch solve your original problem?

Fixes perfectly the crash, thanks!

However, I noticed that Emacs without GUI (-nw -Q) continues to crash in different place:

(gdb) bt
#0  0x00007ffff6c55db9 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#1  0x00007ffff6b047c8 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#2  0x00007ffff6b18413 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#3  0x00007ffff6b05b1c in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#4  0x00007ffff6b18309 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#5  0x00007ffff6b183a4 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#6  0x00007ffff6b06692 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#7  0x00007ffff5996317 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8  0x00007ffff597831b in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007ffff5979c01 in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff597a534 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffff6b2042a in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#12 0x00007ffff6ce97cc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#13 0x00007ffff5996317 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#14 0x00007ffff597831b in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007ffff5979c01 in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#16 0x00007ffff597a534 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#17 0x00000000005ccc74 in Fmake_xwidget (type=..., title=..., width=..., height=..., arguments=..., buffer=...) at xwidget.c:102
#18 0x000000000056cb1b in funcall_subr (subr=0xb80ca0 <Smake_xwidget>, address@hidden, address@hidden) at eval.c:2867
#19 0x000000000056bb76 in Ffuncall (nargs=<optimized out>, address@hidden) at eval.c:2776
#20 0x00000000005a4ee8 in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., address@hidden, address@hidden,
    args=<optimized out>, address@hidden) at bytecode.c:630
#21 0x000000000056b82f in funcall_lambda (fun=..., address@hidden, address@hidden, address@hidden) at eval.c:2977
....


-- 
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