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i.MX6Q: gdb rwatch error

Question asked by Tarek El-Sherbiny on Jun 21, 2013
Latest reply on Sep 10, 2013 by Yixing Kong
Branched to a new discussion

Hi,

 

I would like to set a breakpoint in gdb when memory address is accessed using this command:

(gdb) rwatch *0xde400000

Hardware read watchpoint 1: *0xde400000

 

When I run the program I get this error:

(gdb) r

Starting program: /root/console

Unexpected error setting breakpoint: Invalid argument.

 

 

I think the system is capable of handling one hw watchpoint:

(gdb) show can-use-hw-watchpoints

Debugger's willingness to use watchpoint hardware is 1.

 

But I don't understand why can't I use it!

 

My gdb is version 7.5.1 and I'm using LTIB

 

Any ideas?

 

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