Re: [patch] mips-tdep: info registers

[Aleksandar Ristovski <aristovski@qnx.com>]

Mark Kettenis wrote:
>> Date: Sun, 22 Feb 2009 21:52:30 -0500
>> From: Daniel Jacobowitz <drow@false.org>
>>
>> On Sun, Feb 22, 2009 at 06:08:20PM -0800, Joel Brobecker wrote:
>>>> (gdb) info registers $1
>>>> ../../gdb/mips-tdep.c:4307: internal-error: 
>>>> mips_print_registers_info:
>>>> Assertion `regnum >= gdbarch_num_regs (current_gdbarch)' 
>>>> failed.
>>> Surprisingly, this feature is not documented yet. The documentation
>>> mentions "info registers regname", but not "info registers regno".
>>> Would you mind adding a line or two and sending a (separate) patch
>>> to this list? Eli is the documentation guru...
>> Should this feature even exist?  This is a different "$1" than
>> anywhere else in GDB you might type that...
> 
> I think it shouldn't; the register numbers are internal to GDB an may
> change (once they've been properly decoupled from the remote
> interface).
> 

The use-case where the problem came up is debugging inline 
assembly code which uses register numbers instead of 
register names.

while "$1" may be confusing due to convenience variables, 
syntax:
(gdb) info register 1
is also permitted and looks quite straight-forward.



Thanks,

Aleksandar Ristovski
QNX Software Systems