当只有一个观察点时，gdb 会因太多观察点而停止

Question

除了太多的硬件断点/观察点之外，您是否知道无法插入观察点的任何其他原因？

我有以下调试 session :

GNU gdb (GDB) 7.1
...
(gdb) watch itrap_t_beg[1][222]
Hardware watchpoint 1: itrap_t_beg[1][222]
(gdb) cont
Continuing.
...
Hardware watchpoint 1: itrap_t_beg[1][222]

...
(gdb) cont
Continuing.
Warning:
Could not insert hardware watchpoint 1.
Could not insert hardware breakpoints:
You may have requested too many hardware breakpoints/watchpoints.

(gdb) info break
Num     Type           Disp Enb Address            What
1       hw watchpoint  keep y                      itrap_t_beg[1][222]
        breakpoint already hit 1 time

如您所见，只有一个观察点但它不能插入断点。

你知道我该如何解决这个问题吗？

Answer 1

可以通过运行强制软件断点(没有大小限制)

设置可以使用硬件观察点 0