Re: [PATCH] MIPS: Handle the DSP registers for bare metal

Yao Qi
2014-12-19T13:22:27Z

Pedro Alves <palves@redhat.com> writes:

> The proper solution for this issue is to decouple GDB's internal
> register numbers from the target's g/G packet layout, which is exactly
> what happens when you have a description -- GDB uses the offsets found
> in the target description. And you're touching code that is parsing a
> description, so the real issue should be in the target description.

So, these dsp registers on bare metal target have different layout from
them on linux target, the stub should send the org.gnu.gdb.mips.dsp
feature with some different "regnum", is that correct? On linux target,
gdbserver sends

<feature name="org.gnu.gdb.mips.dsp">
<reg name="hi1" bitsize="32" regnum="72"/>
...
</feature>

on bare metal target, the stub should send

<feature name="org.gnu.gdb.mips.dsp">
<reg name="hi1" bitsize="32" regnum="73"/>
...
</feature>

is it right?

--
Yao (齐尧)