Re: [PATCH v2 06/14] target/arm: use gdb_get_reg helpers

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 11/30/19 9:45 AM, Alex Bennée wrote:
> This is cleaner than poking memory directly and will make later
> clean-ups easier.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> 
> ---
> v2
>    - make sure we pass hi/lo correctly as quads are stored in LE order
> ---
>   target/arm/helper.c | 18 +++++++-----------
>   1 file changed, 7 insertions(+), 11 deletions(-)
> 
> diff --git a/target/arm/helper.c b/target/arm/helper.c
> index 0bf8f53d4b8..0ac950d6c71 100644
> --- a/target/arm/helper.c
> +++ b/target/arm/helper.c
> @@ -105,21 +105,17 @@ static int aarch64_fpu_gdb_get_reg(CPUARMState *env, uint8_t *buf, int reg)
>   {
>       switch (reg) {
>       case 0 ... 31:
> -        /* 128 bit FP register */
> -        {
> -            uint64_t *q = aa64_vfp_qreg(env, reg);
> -            stq_le_p(buf, q[0]);
> -            stq_le_p(buf + 8, q[1]);
> -            return 16;
> -        }
> +    {
> +        /* 128 bit FP register - quads are in LE order */

Oh, this was always wrong on BE :(

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> +        uint64_t *q = aa64_vfp_qreg(env, reg);
> +        return gdb_get_reg128(buf, q[1], q[0]);
> +    }
>       case 32:
>           /* FPSR */
> -        stl_p(buf, vfp_get_fpsr(env));
> -        return 4;
> +        return gdb_get_reg32(buf, vfp_get_fpsr(env));
>       case 33:
>           /* FPCR */
> -        stl_p(buf, vfp_get_fpcr(env));
> -        return 4;
> +        return gdb_get_reg32(buf,vfp_get_fpcr(env));
>       default:
>           return 0;
>       }
>