Re: [PATCH RESEND] gdb: xtensa: fix register counters for xtensa-linux

[Simon Marchi <simon.marchi@polymtl.ca>]

On 2019-01-13 03:36, Max Filippov wrote:
> In the original code (prior to 37d9e0623102) num_regs was the smallest 
> of
> the number of the first pseudo register or the first privileged 
> register, and
> num_pseudo_regs was the total number of registers minus num_regs.
> The register table is constructed so that pseudo registers are always 
> at the
> end of it, so num_regs was always equal to num_nonpriv_regs.
> I'd like to restore this in xtensa-linux gdb, and what I do is I 
> increase
> num_pseudo_regs by the difference of num_regs and num_nonpriv regs
> and set num_regs equal to num_nonpriv_regs to maintain the above 
> equations.

"num_regs == num_nonpriv_regs": is this only true for Linux, because we 
don't have access to privileged registers (and therefore there are 0 
nonpriv registers)?  For bare-metal, num_regs would be greater than 
num_nonpriv_regs?

Simon

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