bug#62291: 30.0.50; PGTK copy + paste to other app problem

[Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Andrew Tropin <andrew@trop.in> writes:

> On 2023-03-23 09:16, Eli Zaretskii wrote:
>
>>> Cc: 62291@debbugs.gnu.org
>>> From: Andrew Tropin <andrew@trop.in>
>>> Date: Thu, 23 Mar 2023 09:18:45 +0400
>>> 
>>> (gdb) frame 12
>>> #12 0x00007ffff798ac04 in gtk_widget_event_internal (widget=widget@entry=0xf04510, even7808    in gtkwidget.c
>>> (gdb) p widget
>>> $2 = (GtkWidget *) 0xf04510
>>> (gdb) p Vframe_list
>>> 'Vframe_list' has unknown type; cast it to its declared type
>>> (gdb) xcar
>>> Undefined command: "xcar".  Try "help".
>>> (gdb) xframe
>>> Undefined command: "xframe".  Try "help".
>>
>> To solve the last two problems, do this:
>>
>>   (gdb) source /path/to/emacs/src/.gdbinit
>>
>> These are commands we define in .gdbinit which comes with Emacs.
>
> Thank you very much. I updated my debugging setup and will write down a
> note for future readers of this thread:
>
> Downloaded latest emacs source code.
>
> guix shell -D emacs-next-pgtk --with-debug-info=glib \ 
> --with-debug-info=gtk+ --no-grafts -- \
> ./configure --enable-checking='yes,glyphs' \
> --enable-check-lisp-object-type --with-pgtk \
> CFLAGS='-O0 -g3'
>
> guix shell -D emacs-next-pgtk --with-debug-info=glib \ 
> --with-debug-info=gtk+ --no-grafts -- make
>
> cd src
> gdb emacs
>
> GNU gdb (GDB) 12.1
> Copyright (C) 2022 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
> Type "show copying" and "show warranty" for details.
> This GDB was configured as "x86_64-unknown-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <https://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
>     <http://www.gnu.org/software/gdb/documentation/>.
>
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from emacs...
> SIGINT is used by the debugger.
> Are you sure you want to change it? (y or n) [answered Y; input not from terminal]
> DISPLAY = :0
> WAYLAND_DISPLAY = wayland-1
> TERM = xterm-256color
> Breakpoint 1 at 0x57d3f4: file emacs.c, line 427.
> (gdb) r -Q
> Starting program: /home/bob/work/gnu/emacs/src/emacs -Q
> warning: Unable to find libthread_db matching inferior's thread library, thread debu
> [New LWP 9978]
> [New LWP 9979]
> [New LWP 9980]
> Gdk-Message: 22:14:56.365: Unable to load sb_v_double_arrow from the cursor theme
> Gdk-Message: 22:14:56.365: Unable to load sb_h_double_arrow from the cursor theme
> Gdk-Message: 22:14:56.403: Unable to load hand2 from the cursor theme
> Gdk-Message: 22:14:56.403: Unable to load sb_h_double_arrow from the cursor theme
> Gdk-Message: 22:14:56.403: Unable to load sb_v_double_arrow from the cursor theme
> [New LWP 9981]
> [LWP 9981 exited]
> [New LWP 9982]
> [New LWP 9983]
> [LWP 9982 exited]
> [LWP 9983 exited]
> [New LWP 9984]
> [New LWP 9985]
> [LWP 9984 exited]
> [LWP 9985 exited]
> [LWP 9979 exited]
>
> Thread 1 "emacs" received signal SIGSEGV, Segmentation fault.
> 0x00007ffff71b5424 in signal_emit_unlocked_R.isra.0 () from /gnu/store/96srhmpmxa20w
> msck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> (gdb) bt
> #0  0x00007ffff71b5424 in signal_emit_unlocked_R.isra.0 () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #1  0x00007ffff71bb21b in g_signal_emit_valist () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #2  0x00007ffff71bb722 in g_signal_emit () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #3  0x00007ffff71a7884 in g_object_dispatch_properties_changed () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #4  0x00007ffff71a9834 in g_object_notify_by_pspec () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #5  0x00007ffff79afbcd in gtk_window_focus_in_event (event=<optimized out>, widget=0x1014500) at gtkwindow.c:8503
> #6  gtk_window_focus_in_event (widget=widget@entry=0x1014500, event=<optimized out>) at gtkwindow.c:8491
> #7  0x00007ffff79de357 in _gtk_marshal_BOOLEAN__BOXED (closure=0x10aedd0, return_value=0x7fffffffb570, n_param_values=<optimized out>, param_values=0x7fffffffb620, 
>     invocation_hint=<optimized out>, marshal_data=<optimized out>) at gtkmarshalers.c:83
> #8  0x00007ffff71a34af in g_closure_invoke () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #9  0x00007ffff71b49e9 in signal_emit_unlocked_R.isra.0 () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #10 0x00007ffff71bad65 in g_signal_emit_valist () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #11 0x00007ffff71bb722 in g_signal_emit () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libgobject-2.0.so.0
> #12 0x00007ffff798ac04 in gtk_widget_event_internal (widget=widget@entry=0x1014500, event=event@entry=0x7fffe4007b50) at gtkwidget.c:7808
> #13 0x00007ffff798d472 in gtk_widget_event_internal (event=0x7fffe4007b50, widget=0x1014500) at gtkwidget.c:7379
> #14 0x00007ffff784b37a in gtk_main_do_event (event=0x7fffe4007b50) at gtkmain.c:1861
> #15 gtk_main_do_event (event=<optimized out>) at gtkmain.c:1691
> #16 0x00007ffff7efc3c5 in _gdk_event_emit (event=event@entry=0x7fffe4007b50) at gdkevents.c:73
> #17 0x00007ffff7f59352 in gdk_event_source_dispatch (base=<optimized out>, callback=<optimized out>, data=<optimized out>) at gdkeventsource.c:124
> #18 0x00007ffff70af4cb in g_main_context_dispatch () from /gnu/store/96srhmpmxa20wmsck95g3iq4hb3lz4a0-glib-2.70.2/lib/libglib-2.0.so.0
> #19 0x00000000007771e4 in pgtk_read_socket (terminal=0x1079530, hold_quit=0x7fffffffba10) at pgtkterm.c:3840
> #20 0x000000000059703c in gobble_input () at keyboard.c:7424
> #21 0x0000000000597580 in handle_async_input () at keyboard.c:7655
> #22 0x000000000059759f in process_pending_signals () at keyboard.c:7669
> #23 0x00000000005975df in unblock_input_to (level=0) at keyboard.c:7684
> #24 0x0000000000597603 in unblock_input () at keyboard.c:7703
> #25 0x000000000058fe19 in timer_check () at keyboard.c:4749
> #26 0x000000000058ce8a in readable_events (flags=1) at keyboard.c:3531
> #27 0x0000000000596f04 in get_input_pending (flags=1) at keyboard.c:7374
> #28 0x00000000005a0201 in detect_input_pending_run_timers (do_display=true) at keyboard.c:10904
> #29 0x00000000006de504 in wait_reading_process_output (time_limit=30, nsecs=0, read_kbd=-1, do_display=true, wait_for_cell=XIL(0), wait_proc=0x0, just_wait_proc=0)
>     at process.c:5779
> #30 0x0000000000431ef3 in sit_for (timeout=make_fixnum(30), reading=true, display_option=1) at dispnew.c:6256
> #31 0x000000000058a731 in read_char (commandflag=1, map=XIL(0x7ffff41b4703), prev_event=XIL(0), used_mouse_menu=0x7fffffffc42f, end_time=0x0) at keyboard.c:2879
> #32 0x000000000059e2ee in read_key_sequence (keybuf=0x7fffffffc5c0, prompt=XIL(0), dont_downcase_last=false, can_return_switch_frame=true, fix_current_buffer=true, 
> --Type <RET> for more, q to quit, c to continue without paging--c
>     prevent_redisplay=false) at keyboard.c:10081
> #33 0x0000000000585bc7 in command_loop_1 () at keyboard.c:1382
> #34 0x0000000000667131 in internal_condition_case (bfun=0x5857bc <command_loop_1>, handlers=XIL(0x90), hfun=0x584c7f <cmd_error>) at eval.c:1474
> #35 0x00000000005853cc in command_loop_2 (handlers=XIL(0x90)) at keyboard.c:1131
> #36 0x00000000006663ad in internal_catch (tag=XIL(0xff60), func=0x5853a9 <command_loop_2>, arg=XIL(0x90)) at eval.c:1197
> #37 0x0000000000585365 in command_loop () at keyboard.c:1109
> #38 0x000000000058476d in recursive_edit_1 () at keyboard.c:718
> #39 0x0000000000584974 in Frecursive_edit () at keyboard.c:801
> #40 0x000000000058034c in main (argc=2, argv=0x7fffffffcb08) at emacs.c:2530
> (gdb) frame 12
> #12 0x00007ffff798ac04 in gtk_widget_event_internal (widget=widget@entry=0x1014500, event=event@entry=0x7fffe4007b50) at gtkwidget.c:7808
> 7808    gtkwidget.c: No such file or directory.
> (gdb) frame 12
> #12 0x00007ffff798ac04 in gtk_widget_event_internal (widget=widget@entry=0x1014500, event=event@entry=0x7fffe4007b50) at gtkwidget.c:7808
> 7808    in gtkwidget.c
> (gdb) p widget
> $1 = (GtkWidget *) 0x1014500
> (gdb) p Vframe_list 
> $2 = XIL(0x7ffff41d3213)
> (gdb) xcar
> $3 = XIL(0x107975d)
> (gdb) xframe
> $4 = (struct frame *) 0x1079758
> "*scratch* - GNU Emacs at ixy"

You forgot:

  (gdb) p *$4->output_data.pgtk

Thanks.