Re: Adding backtrace to an arm-based on-target debugger

[Ramana Radhakrishnan <ramana dot radhakrishnan at codito dot com>]

> I am working on developing an on-target debugger for applications on
> an arm-based target. I need to add a backtrace feature to it.
>
> Can someone tell me where to look for the gdb serial protocol?
>  
1. info gdbint.
2. gdb/remote.c

> When I do a "bt" on the gdb prompt I get only the current frame. It
> does not go beyond the current frame. It is as shown below.
>
> #0  Test_Func(nValue=525, psValueBuf=0xb00f0c,
> Sending packet: $mb00ee0,4#89...Ack
> Packet received: 14000000
>   nValueBufSize=20) at et_amountctl.c:390
> #1  0x00d4b9e4 in ?? ()
>
> Can you tell me what do I need to do in the target-side stub?
>
>  
Please submit your problem with a script of your debug session showing 
exactly all that you did before this and a small testcase mentioning the 
version of gdb , gcc and binutils that you are currently using for this.

You could take a look at the script command in bash or you could use 
emacs to capture the debug session using M-x gdb .

cheers
Ramana