Segmentation fault (core dumped)

[efa]

I just build the GTK frontend on 2 different Debian 12 installations:

1. Debian12/WSL/Win10

$ sudo apt install  debhelper cmake intltool libdjvulibre-dev libgtkspellmm-3.0-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev libcairomm-1.0-dev libpoppler-glib-dev libtesseract-dev libsane-dev qtbase5-dev qttools5-dev qttools5-dev-tools libqtspell-qt5-dev libpoppler-qt5-dev libjson-glib-dev libxml++2.6-dev libpodofo-dev libquazip5-dev libzip-dev python3-gi uuid-dev
$ git clone https://github.com/manisandro/gImageReader.git
$ cd gImageReader
$ mkdir build
$ cd build
$ cmake -DINTERFACE_TYPE=gtk ..
$ make
$ export XDG_DATA_DIRS=$PWD:$XDG_DATA_DIRS
$ gImageReader/build$ gimagereader-gtk
(gimagereader-gtk:21354): Gtk-WARNING **: 17:53:23.208: Could not load a pixbuf from /org/gtk/libgtk/icons/16x16/status/window-close-symbolic.symbolic.png.
This may indicate that pixbuf loaders or the mime database could not be found.
**
Gtk:ERROR:../../../gtk/gtkiconhelper.c:495:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3)
Bail out! Gtk:ERROR:../../../gtk/gtkiconhelper.c:495:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3)
Segmentation fault (core dumped)

2. Debian12 (on real HW)

/gImageReader/build$ gimagereader-gtk
Segmentation fault

and a windows open with the backtrace:

gImageReader 3.4.2 (rev e1679305c8b8e2e6a38bf3fcb7699ba6a2b2860a)

#1  0x00005620f55a4341 in MainWindow::signalHandlerExec(int, bool) ()
#2  0x00005620f55a3df2 in MainWindow::signalHandler(int) ()
#3  0x00007ffaf325b050 in <signal handler called> ()
#4  0x00007ffaf4fee064 in Gtk::Widget::get_parent() ()
#5  0x00005620f55b9139 in Ui::MainWindow::~MainWindow() ()
#6  0x00005620f55a638b in MainWindow::MainWindow() ()
#7  0x00005620f56c2bc8 in Application::on_startup() ()
#8  0x00007ffaf4b0055b in Gio::Application_Class::startup_callback(_GApplication*) () at /lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#9  0x00007ffaf3dd75a9 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffaf3df0bbf in g_signal_emit_valist ()
#11 0x00007ffaf3df0dbf in g_signal_emit ()
#12 0x00007ffaf3efcea2 in g_application_register ()
#13 0x00007ffaf3efd26a in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007ffaf4b00118 in Gio::Application::local_command_line_vfunc(char**&, int&) () at /lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#15 0x00007ffaf4b0035d in Gio::Application_Class::local_command_line_vfunc_callback(_GApplication*, char***, int*) ()
#16 0x00007ffaf3efd5c6 in g_application_run ()
#17 0x00005620f56c2251 in main ()

Thread 3 (Thread 0x7ffaed7fe6c0 (LWP 3261532) "gdbus"):
#0  0x00007ffaf331b1df in __GI___poll (fds=0x5620f5937aa0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffaf3cdd9ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffaf3cddcef in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffaf3f397c6 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffaf3d07cfd in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffaf32a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffaf332885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7ffaedfff6c0 (LWP 3261531) "gmain"):
#0  0x00007ffaf331b1df in __GI___poll (fds=0x5620f592adf0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffaf3cdd9ae in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffaf3cddacc in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffaf3cddb11 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffaf3d07cfd in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffaf32a81c4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007ffaf332885c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7ffaf03e6d80 (LWP 3261530) "gimagereader-gt"):
#0  0x00007ffaf32f2bd7 in __GI___wait4 (pid=3261572, stat_loc=0x0, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30
#1  0x00005620f55a4341 in MainWindow::signalHandlerExec(int, bool) ()
#2  0x00005620f55a3df2 in MainWindow::signalHandler(int) ()
#3  0x00007ffaf325b050 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffaf4fee064 in Gtk::Widget::get_parent() () at /lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
#5  0x00005620f55b9139 in Ui::MainWindow::~MainWindow() ()
#6  0x00005620f55a638b in MainWindow::MainWindow() ()
#7  0x00005620f56c2bc8 in Application::on_startup() ()
#8  0x00007ffaf4b0055b in Gio::Application_Class::startup_callback(_GApplication*) () at /lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#9  0x00007ffaf3dd75a9 in  () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffaf3df0bbf in g_signal_emit_valist () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007ffaf3df0dbf in g_signal_emit () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007ffaf3efcea2 in g_application_register () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007ffaf3efd26a in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007ffaf4b00118 in Gio::Application::local_command_line_vfunc(char**&, int&) () at /lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#15 0x00007ffaf4b0035d in Gio::Application_Class::local_command_line_vfunc_callback(_GApplication*, char***, int*) () at /lib/x86_64-linux-gnu/libgiomm-2.4.so.1
#16 0x00007ffaf3efd5c6 in g_application_run () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#17 0x00005620f56c2251 in main ()

[manisandro]

First segfault is due to XDG_DATA_DIRS not containing the system XDG_DATA_DIRS. What does echo $XDG_DATA_DIRS give you after overriding the env?

Second one I need to investigate, does not seem to happen on linux though.

[efa]

my XDG_DATA_DIRS var was empty before
$ export XDG_DATA_DIRS=$PWD:$XDG_DATA_DIRS
so now contain only PWD

This on both Debian installations

[manisandro]

This is strange. On Fedora/KDE by default it is

/usr/share/kde-settings/kde-profile/default/share:/usr/local/share:/usr/share

Try

export XDG_DATA_DIRS=$PWD:/usr/local/share:/usr/share

[efa]

OK, so work on both Debian 12 installations

[efa]

I made some tests, and the binary need to find those files:
build/glib-2.0/schemas/org.gnome.gimagereader.gschema.xml
build/glib-2.0/schemas/gschemas.compiled
or Segmentation fault.
System schemas:
/usr/local/share:/usr/share
does not matter.
So XDG_DATA_DIRS must be set to path 'build', that it is not the gimagereader-gtk binary path, but the path up one level of glib-2.0/schemas

I think this should be solved.