Re: [Qemu-devel] [PATCH] gdbstub: Convert gdb-signal to target signal when continuing.

["Wei-cheng, Wang" <cole945@gmail.com>]

Ping?

On 10/27/2014 12:58 AM, Wei-cheng Wang wrote:
> QEMU should convert signal number reciving from GDB cilent
> from gdb-signal number to target sginal number - using gdb_signal_to_target().
>
> In this case, GDB_SIG_BUS is 10.  However, 10 is SIGUSR1 for target.
> So QEMU continues with the wrong signal number.
>
>
> #include <stdio.h>
> #include <signal.h>
>
> void handle_signal (int sig)
> {
>      puts ("Hello");
> }
>
> int main ()
> {
>      signal (SIGBUS, handle_signal);
>      kill (0, SIGBUS);
>      return 0;
> }
>
>
> (gdb) target remote :25566
> Remote debugging using :25566
> 0x00008b98 in _start ()
> (gdb) c
> Continuing.
>
> Program received signal SIGBUS, Bus error.
> 0x0000e18c in kill ()
> (gdb) c
> Continuing.
>
> Program terminated with signal SIGUSR1, User defined signal 1.
>                                 ^^^^^^^
> The program no longer exists.
> (gdb)
>
>
> Thansk,
> Wei-cheng Wang
>
>
> From: Cole Wang <cole945@gmail.com>
> Date: Mon, 27 Oct 2014 00:33:18 +0800
> Subject: [PATCH] gdbstub: Convert gdb-signal to target signal when continuing.
>
> Signed-off-by: Wei-cheng Wang <cole945@gmail.com>
> ---
>   gdbstub.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gdbstub.c b/gdbstub.c
> index d1b5afd..cce5c69 100644
> --- a/gdbstub.c
> +++ b/gdbstub.c
> @@ -851,7 +851,7 @@ static int gdb_handle_packet(GDBState *s, const
> char *line_buf)
>                   if (res == 's') {
>                       cpu_single_step(s->c_cpu, sstep_flags);
>                   }
> -                s->signal = res_signal;
> +                s->signal = gdb_signal_to_target(res_signal);
>                   gdb_continue(s);
>                   return RS_IDLE;
>               }
> --
> 1.9.1
>