Re: [PATCH 3/9] plugins: Ensure register handles are not NULL

[Pierrick Bouvier <pierrick.bouvier@linaro.org>]

On 6/12/24 08:35, Alex Bennée wrote:
> From: Akihiko Odaki <akihiko.odaki@daynix.com>
> 
> Ensure register handles are not NULL so that a plugin can assume NULL is
> invalid as a register handle.
> 
> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> Message-Id: <20240229-null-v1-1-e716501d981e@daynix.com>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>   plugins/api.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/plugins/api.c b/plugins/api.c
> index 5a0a7f8c71..6bdb26bbe3 100644
> --- a/plugins/api.c
> +++ b/plugins/api.c
> @@ -507,7 +507,7 @@ static GArray *create_register_handles(GArray *gdbstub_regs)
>           }
>   
>           /* Create a record for the plugin */
> -        desc.handle = GINT_TO_POINTER(grd->gdb_reg);
> +        desc.handle = GINT_TO_POINTER(grd->gdb_reg + 1);
>           desc.name = g_intern_string(grd->name);
>           desc.feature = g_intern_string(grd->feature_name);
>           g_array_append_val(find_data, desc);
> @@ -528,7 +528,7 @@ int qemu_plugin_read_register(struct qemu_plugin_register *reg, GByteArray *buf)
>   {
>       g_assert(current_cpu);
>   
> -    return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg));
> +    return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg) - 1);
>   }
>   
>   struct qemu_plugin_scoreboard *qemu_plugin_scoreboard_new(size_t element_size)

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>