Re: [Qemu-devel] [PATCH v4] Add GDB qAttached support

[Jan Kiszka]

On 2013-03-14 20:51, Jan Kiszka wrote:
> With this patch QEMU handles qAttached request from gdb. When QEMU
> replies 1, GDB sends a "detach" command at the end of a debugging
> session otherwise GDB sends "kill".
> 
> The default value for qAttached is 1 on system emulation and 0 on user
> emulation.
> 
> Based on original version by Fabien Chouteau.
> 

Ping for this and the revert of "gdbstub: Do not kill target in system
emulation mode".

Jan

> Signed-off-by: Jan Kiszka <address@hidden>
> ---
> 
> As Fabien dropped his attempt to make this configurable, let's
> preserve the value of exposing this feature to gdb statically.
> 
>  gdbstub.c |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/gdbstub.c b/gdbstub.c
> index e414ad9..9daee86 100644
> --- a/gdbstub.c
> +++ b/gdbstub.c
> @@ -42,6 +42,12 @@
>  #include "sysemu/kvm.h"
>  #include "qemu/bitops.h"
>  
> +#ifdef CONFIG_USER_ONLY
> +#define GDB_ATTACHED "0"
> +#else
> +#define GDB_ATTACHED "1"
> +#endif
> +
>  #ifndef TARGET_CPU_MEMORY_RW_DEBUG
>  static inline int target_memory_rw_debug(CPUArchState *env, target_ulong 
> addr,
>                                           uint8_t *buf, int len, int is_write)
> @@ -2491,6 +2497,10 @@ static int gdb_handle_packet(GDBState *s, const char 
> *line_buf)
>              break;
>          }
>  #endif
> +        if (strncmp(p, "Attached", 8) == 0) {
> +            put_packet(s, GDB_ATTACHED);
> +            break;
> +        }
>          /* Unrecognised 'q' command.  */
>          goto unknown_command;
>  
>

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