C++ 这是Qt还是我的程序的错误？

我是瓦尔格林的新手。我在Ubuntu 15.10上使用Qt5.5.1库编写了一个C++程序。我正在使用Qt Creator和调试生成集。我使用以下命令使用Valgrind检查内存泄漏：

valgrind --leak-check=yes --track-origins=yes ./texteditor

Valgrind然后给了我以下信息：

==2977== Conditional jump or move depends on uninitialised value(s)
==2977==    at 0x97ED1EC: ??? (in /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0.2400.28)
==2977==    by 0x97EE58A: ??? (in /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0.2400.28)
==2977==    by 0x5B3380B: g_cclosure_marshal_VOID__VOID (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x5B31B8A: g_closure_invoke (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x5B43FFB: ??? (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x5B4CC95: g_signal_emit_valist (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x5B4CFC4: g_signal_emit (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x96ECD00: gtk_adjustment_changed (in /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0.2400.28)
==2977==    by 0x5B35465: ??? (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x5B384FC: g_object_thaw_notify (in /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.4600.2)
==2977==    by 0x96ED182: gtk_adjustment_configure (in /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0.2400.28)
==2977==    by 0x4563C7F: ??? (in /home/tembo/Qt/5.5/gcc/lib/libQt5Widgets.so.5.5.1)
==2977==  Uninitialised value was created by a stack allocation
==2977==    at 0x456215F: ??? (in /home/tembo/Qt/5.5/gcc/lib/libQt5Widgets.so.5.5.1)

---

从上面的消息中，没有任何东西指向myProgram的位置。这是来自Qt和其他库还是我错过了指向myProgram的内容？

默认情况下，Valgrind只显示调用堆栈的前12个条目，但这可以通过

--num callers=xx

参数进行更改。您自己的程序代码中的函数可能位于堆栈的较低位置

尝试使用调试信息编译程序（

-g-O0

），然后再次运行

valgrind

。@Drop，我正在使用Qt Creator进行编译，并已设置为调试版本，-g是否延迟调试版本？您需要使用调试信息编译Qt本身。。。（

-debug

切换到configure）还要注意，调试构建（根据注释）也会增加调用堆栈要求，因为函数不会内联。