On 1/9/21 11:59 AM, Andrea Venturoli wrote:
Right now I reached an usable config on my desktop, but I will try and
get suck a backtrace and I'll come back if I succeed.
Here it is:
(gdb) bt
#0 0x0000000800e95287 in g_filename_from_uri () at
/usr/local/lib/libglib-2.0.so.0
#1 0x00000000002103a7 in install_theme (widget=0x80361c3f0, uris=0x80463bf98,
builder=0x802d504e0) at main.c:881
#2 0x000000000020f949 in appearance_settings_install_theme_cb
(widget=0x803631180, builder=0x802d504e0) at main.c:1000
#3 0x0000000800db2486 in () at /usr/local/lib/libgobject-2.0.so.0
#4 0x0000000800dc8488 in g_signal_emit_valist () at
/usr/local/lib/libgobject-2.0.so.0
#5 0x0000000800dc8ee6 in g_signal_emit () at /usr/local/lib/libgobject-2.0.so.0
#6 0x00000008008ab72e in () at /usr/local/lib/libgtk-3.so.0
#7 0x0000000800db2486 in () at /usr/local/lib/libgobject-2.0.so.0
#8 0x0000000800dc8488 in g_signal_emit_valist () at
/usr/local/lib/libgobject-2.0.so.0
#9 0x0000000800dc8ee6 in g_signal_emit () at /usr/local/lib/libgobject-2.0.so.0
#10 0x00000008008abd36 in () at /usr/local/lib/libgtk-3.so.0
#11 0x0000000800b8dc18 in () at /usr/local/lib/libgtk-3.so.0
#12 0x0000000800db2486 in () at /usr/local/lib/libgobject-2.0.so.0
#13 0x0000000800dc8488 in g_signal_emit_valist () at
/usr/local/lib/libgobject-2.0.so.0
#14 0x0000000800dc8ee6 in g_signal_emit () at /usr/local/lib/libgobject-2.0.so.0
#15 0x00000008009817f1 in () at /usr/local/lib/libgtk-3.so.0
#16 0x0000000800db588c in g_cclosure_marshal_VOID__BOXEDv () at
/usr/local/lib/libgobject-2.0.so.0
#17 0x0000000800db2486 in () at /usr/local/lib/libgobject-2.0.so.0
#18 0x0000000800dc8488 in g_signal_emit_valist () at
/usr/local/lib/libgobject-2.0.so.0
#19 0x0000000800dc8ee6 in g_signal_emit () at /usr/local/lib/libgobject-2.0.so.0
#20 0x000000080097f69e in () at /usr/local/lib/libgtk-3.so.0
#21 0x0000000800983395 in () at /usr/local/lib/libgtk-3.so.0
#22 0x000000080094341c in gtk_event_controller_handle_event () at
/usr/local/lib/libgtk-3.so.0
#23 0x0000000800b35d9c in () at /usr/local/lib/libgtk-3.so.0
#24 0x0000000800b882c1 in () at /usr/local/lib/libgtk-3.so.0
#25 0x0000000800db2486 in () at /usr/local/lib/libgobject-2.0.so.0
#26 0x0000000800dc8488 in g_signal_emit_valist () at
/usr/local/lib/libgobject-2.0.so.0
#27 0x0000000800dc8ee6 in g_signal_emit () at /usr/local/lib/libgobject-2.0.so.0
#28 0x0000000800b35ad9 in () at /usr/local/lib/libgtk-3.so.0
#29 0x00000008009d1c5f in gtk_propagate_event () at /usr/local/lib/libgtk-3.so.0
#30 0x00000008009d17ef in gtk_main_do_event () at /usr/local/lib/libgtk-3.so.0
#31 0x00000008002e43a1 in () at /usr/local/lib/libgdk-3.so.0
#32 0x0000000800319877 in () at /usr/local/lib/libgdk-3.so.0
#33 0x0000000800eb9a7e in g_main_context_dispatch () at
/usr/local/lib/libglib-2.0.so.0
#34 0x0000000800eb9e24 in () at /usr/local/lib/libglib-2.0.so.0
#35 0x0000000800eba17a in g_main_loop_run () at /usr/local/lib/libglib-2.0.so.0
#36 0x00000008009d111b in gtk_main () at /usr/local/lib/libgtk-3.so.0
#37 0x000000000020cb2d in main (argc=1, argv=0x7fffffffe660) at main.c:1307
In frame #1 (install_theme) we have:
static void
install_theme (GtkWidget *widget, gchar **uris, GtkBuilder *builder)
{
...
for (i = 0; uris[i] != NULL; i++)
{
...
However in the caller (at frame #2, i.e.
appearance_settings_install_theme_cb):
gchar **uris;
GtkFileChooser *chooser = GTK_FILE_CHOOSER (dialog);
uris = g_new0 (gchar *, 1);
filename = gtk_file_chooser_get_filename (chooser);
uris[0] = g_filename_to_uri (filename, NULL, NULL);
install_theme (window, uris, builder);
So what I think happens is that the loop processes uri[0], which holds
the filename, but fails to find a NULL after it, since it was never
allocated.
Guess it should read:
uris = g_new0 (gchar *, 2);
Of course this should be fixed upstream, but in the meantime I'm
attaching a patch that solves for me.
bye
av.
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