Re: [PATCH v3 23/49] semihosting: Split out semihost_sys_open

[Peter Maydell]

On Mon, 23 May 2022 at 16:46, Richard Henderson
<richard.henderson@linaro.org> wrote:
> Also, I think I mentioned this in the v2 cover but not here, that having done 
> the errno
> conversion here for arm semihosting, it worked less well for mips and xtensa, 
> which have a
> rather better defined set of errnos.
>
> My question from v2 was: should we in fact convert back from gdb's errno to 
> host errno in
> gdbstub.c handle_file_io(), and then let each semihosting backend convert 
> from host to guest?

That sounds like it's probably a better idea (though I'm not sure
what host errno we use for the gdb "unknown errno" case)...

-- PMM