Re: [PATCH 1/3] gdbstub: prevent uninitialized warning

[Miroslav Rezanina]

On Wed, Mar 25, 2020 at 05:21:35PM +0800, Chen Qun wrote:
> According to the glib function requirements, we need initialise
>      the variable. Otherwise there will be compilation warnings:
> 
> qemu/gdbstub.c: In function ‘handle_query_thread_extra’:
> /usr/include/glib-2.0/glib/glib-autocleanups.h:28:3: warning:
>  ‘cpu_name’ may be used uninitialized in this function [-Wmaybe-uninitialized]
>    g_free (*pp);
>    ^~~~~~~~~~~~
> 
> Reported-by: Euler Robot <address@hidden>
> Signed-off-by: Chen Qun <address@hidden>
> ---
> Cc: "Alex Bennée" <address@hidden>
> Cc: "Philippe Mathieu-Daudé" <address@hidden>
> ---
>  gdbstub.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/gdbstub.c b/gdbstub.c
> index 013fb1ac0f..171e150950 100644
> --- a/gdbstub.c
> +++ b/gdbstub.c
> @@ -2060,8 +2060,8 @@ static void handle_query_thread_extra(GdbCmdContext 
> *gdb_ctx, void *user_ctx)
>          /* Print the CPU model and name in multiprocess mode */
>          ObjectClass *oc = object_get_class(OBJECT(cpu));
>          const char *cpu_model = object_class_get_name(oc);
> -        g_autofree char *cpu_name;
> -        cpu_name  = object_get_canonical_path_component(OBJECT(cpu));
> +        g_autofree char *cpu_name =
> +            object_get_canonical_path_component(OBJECT(cpu));
>          g_string_printf(rs, "%s %s [%s]", cpu_model, cpu_name,
>                          cpu->halted ? "halted " : "running");
>      } else {
> -- 
> 2.23.0
> 
> 
>

Fixing broken build with -Wall.

Reviewed-by: Miroslav Rezanina <address@hidden>