Watchpoint一个固定的地址 [英] Watchpoint a fixed address

问题描述

对于我目前的嵌入式应用程序，我试图将GDB观察点放在一个固定的内存地址。

例如，我的应用程序更新以下地址：0x10793ad0。为了确定代码的哪一部分正在损坏该值，我尝试了

  watch 0x10793ad0 
  

即使GDB在此之后没有输出任何错误，它仍然无法在执行期间中断，即使我已验证该值正在修改在开始和结束执行之间。

问题：

1. 我真的可以把手表放在固定的地址吗？
   
2. 这是正确的方式还是我错过了一些东西？

div class =h2_lin>解决方案

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

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

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

watch 0x10793ad0

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.

Questions:

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

解决方案

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

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