Qt 5.1.0在Windows上使用minGW 4.8花费了很长时间来调试 [英] Qt 5.1.0 on Windows using minGW 4.8 taking a really long time to debug
问题描述
我已从qt-project下载页面下载并安装了用于Windows 32位（MinGW 4.8）的Qt 5.1.0。我已经运行安装程序，并能够编译和运行应用程序使用这些库和minGW 4.8 32位工具链。
I have downloaded and installed the Qt 5.1.0 for Windows 32-bit (MinGW 4.8) from the qt-project downloads page. I have run the installer, and am able to compile and run applications using these libraries and the minGW 4.8 32-bit toolhchain.
但是，我有一个大的应用程序，当我尝试调试它（使用gG捆绑在minGW工具链），它需要一个疯狂的时间开始运行，任何与应用程序的交互都需要很长时间才能完成。不是恼人的时间量，但不可用的时间量。有没有其他人有这个问题，有什么解决方案？
However, I have a large application, and when I try to debug it (using the gdb bundled with the minGW toolchain), it takes an insane amount of time to start running, and any interaction with the application takes a long time to complete. Not an annoying amount of time, but an unusable amount of time. Has anyone else had this problem and are there any solutions?
如果这有帮助，我得到大量的输出调试时这样：
In case this helps, I get lots of output when debugging like this:
Temporarily disabling breakpoints for unloaded shared library "C:\Qt\Qt5.1.0\5.1.0\mingw48_32\plugins\somefolder\somelib.dll"
推荐答案
在7.4和7.5之间的某个点引入，这使得它慢得多。当调试QObject类时，速度变得非常慢。
There is a gdb bug that was introduced at some point between 7.4 and 7.5, which makes it much slower. When debugging QObject classes, the slower becomes awfully slow.
通过禁用调试助手，你可以改进它，但是你会错过很多宝贵的信息在局部变量和表达式。例如，你不能很好地显示QLists等的内容...
By disabling debugging helper, you improve it, but then you miss a lot of precious information in the Local Variables and Expressions. For instance, you cannot display nicely the contents of QLists, etc...
似乎是：
- 使用旧版gdb（7.4.1）从CVS或
建立gid。
- buidling gdb from the CVS or
- using an older gdb (7.4.1)
可解决问题。
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