Re: Can't debug core files with GDB

[Daniel Jacobowitz <dan@debian.org>]

On Thu, May 25, 2006 at 05:50:56PM -0700, Tony Lin wrote:

[2.4]

>       /*
>        * saved cp0 registers
>        */
>       unsigned long cp0_epc;
>       unsigned long cp0_badvaddr;
>       unsigned long cp0_status;
>       unsigned long cp0_cause;

[2.6]

>       /* Saved special registers. */
>       unsigned long cp0_status;
>       unsigned long lo;
>       unsigned long hi;
>       unsigned long cp0_badvaddr;
>       unsigned long cp0_cause;
>       unsigned long cp0_epc;

> Notice how the offsets has changed, no idea why this was done. I
> loaded the core file in the hex dump, and sure enough it is dumped
> with this new ordering.
> 
> I guess gdb is still trying to decode using the old pt_regs format. Is
> it correct to modify gdb to use this new format? Or modify linux to
> output using the old format?

Ralf, do you remember why this changed?  I don't.

-- 
Daniel Jacobowitz
CodeSourcery