GDB：观察点固定地址 [英] GDB: Watchpoint a fixed address

问题描述

对于我当前的嵌入式应用程序，我试图将GDB观察点放在固定的内存地址。

For my current embedded application I am trying to put GDB watch point at a fixed memory address.

举个例子，我的应用程序会更新以下地址：0x10793ad0。为了确保代码的哪个部分损坏了这个值，我尝试了

As an example, my application updates the following address: 0x10793ad0. In order to be sure which part of the code is corrupting the value, I tried

观看0x10793ad0

watch 0x10793ad0

甚至虽然GDB不会在此之后打印任何错误，但是在执行期间无法中断，即使我验证了在执行的开始和结束之间修改了值。

Even though GDB does not print any error after this, it is not able to break during execution even though I verified the value is getting modified at between start and end of execution.

问题：

a）我可以真正把手表固定在地址吗？我没有在网上遇到任何这样的例子。
b）这是正确的方法还是我缺少某些东西？

a) Can I really put watch at a fixed address? I didn't come across any such example online. b) Is this the right way or am I missing something?

推荐答案

在地址上设置观察点的正确方法是观看* 0x10793ad0 。请参阅 gdb doc

The right way to set watchpoint on address is watch *0x10793ad0. See gdb doc

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