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POSegmentation fault when enabling optimization in a simple GTK+ application?
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  1. POSegmentation fault when enabling optimization in a simple GTK+ application?
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    copied!<p>Might be that it is too late, but I find it at least curious that the following few lines seem to be causing a segmentation fault if and only when compiled with gcc's optimization, even "-O1"!</p> <pre><code>settings_dialog = gtk_dialog_new_with_buttons("gatotray Settings" , NULL, 0, GTK_STOCK_CANCEL, FALSE, GTK_STOCK_SAVE, TRUE, 0); g_signal_connect(G_OBJECT(settings_dialog), "response", G_CALLBACK(gtk_widget_destroy), NULL); g_signal_connect(G_OBJECT(settings_dialog), "destroy", G_CALLBACK(settings_destroyed), NULL); GtkWidget *vb = gtk_dialog_get_content_area(GTK_DIALOG(settings_dialog)); GtkWidget *hb = gtk_hbox_new(FALSE, 3); gtk_container_add(GTK_CONTAINER(hb), gtk_label_new("Background:")); GtkWidget *cb = gtk_color_button_new(); gtk_container_add(GTK_CONTAINER(hb), cb); gtk_container_add(GTK_CONTAINER(vb), hb); </code></pre> <p>This is the backtrace:</p> <pre><code>(gdb) backtrace #0 0x00007ffff4d88052 in ?? () from /lib/libc.so.6 #1 0x00007ffff5304112 in g_strdup () from /lib/libglib-2.0.so.0 #2 0x00007ffff5bc799d in ?? () from /usr/lib/libgobject-2.0.so.0 #3 0x00007ffff5ba826c in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0 #4 0x00007ffff5ba84f1 in g_object_new () from /usr/lib/libgobject-2.0.so.0 #5 0x00007ffff78502d5 in gtk_button_new_from_stock () from /usr/lib/libgtk-x11-2.0.so.0 #6 0x00007ffff787cc95 in gtk_dialog_add_button () from /usr/lib/libgtk-x11-2.0.so.0 #7 0x00007ffff787cd60 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #8 0x00007ffff787cf60 in gtk_dialog_new_with_buttons () from /usr/lib/libgtk-x11-2.0.so.0 #9 0x0000000000402bb9 in show_settings_dialog () at settings.c:24 #10 0x0000000000403328 in main (argc=1, argv=0x7fffffffe2b8) at gatotray.c:286 </code></pre> <p>... settings.c:24 is exactly the first line listed above, seems like "gtk_dialog_new_with_buttons" is the culprit...</p> <p>Versions:<br> gcc: 4.4.3<br> GTK+: 2.20.1 </p> <p>BTW, forgot to mention that commenting out certain lines <em>after</em> the conflictive call prevents it from happening. Particularly the line with "gtk_container_add(GTK_CONTAINER(hb), cb);"</p> <p>I tried almost all suitable combinations of GtkTypes/GTK_MACROS, it makes no difference.</p>
 

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