Commit a3919386 authored by Jan Kiszka's avatar Jan Kiszka Committed by Peter Maydell
Browse files

Add GDB qAttached support 



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.

Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 4dabe747

gdbstub.c

+10 −0
Original line number Diff line number Diff line
@@ -41,6 +41,12 @@ 
#include "qemu/sockets.h"

#include "sysemu/kvm.h"



#ifdef CONFIG_USER_ONLY

#define GDB_ATTACHED "0"

#else

#define GDB_ATTACHED "1"

#endif



static inline int target_memory_rw_debug(CPUState *cpu, target_ulong addr,

                                         uint8_t *buf, int len, bool is_write)

{
@@ -1195,6 +1201,10 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf) 
            put_packet_binary(s, buf, len + 1);

            break;

        }

        if (is_query_packet(p, "Attached", ':')) {

            put_packet(s, GDB_ATTACHED);

            break;

        }

        /* Unrecognised 'q' command.  */

        goto unknown_command;