Hi Luc,

On 01/10/2018 13:56, Luc Michel wrote:
> Add support for the '!' extended mode packet. This is required for the
> multiprocess extension.
> 
> Signed-off-by: Luc Michel <luc.mic...@greensocs.com>
> ---
>  gdbstub.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/gdbstub.c b/gdbstub.c
> index 299783b3b8..d372972dd3 100644
> --- a/gdbstub.c
> +++ b/gdbstub.c
> @@ -1280,10 +1280,13 @@ static int gdb_handle_packet(GDBState *s, const char 
> *line_buf)
>      trace_gdbstub_io_command(line_buf);
>  
>      p = line_buf;
>      ch = *p++;
>      switch(ch) {
> +    case '!':
> +        put_packet(s, "OK");

Don't we want to also support the 'R' packet?

> +        break;
>      case '?':
>          /* TODO: Make this return the correct value for user-mode.  */
>          snprintf(buf, sizeof(buf), "T%02xthread:%s;", GDB_SIGNAL_TRAP,
>                   gdb_fmt_thread_id(s, s->c_cpu, thread_id, 
> sizeof(thread_id)));
>          put_packet(s, buf);
> 

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