Re: [PATCH 07/13] hw/xtensa/xtfpga: Remove TARGET_BIG_ENDIAN #ifdef'ry

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

On 9/30/24 00:34, Philippe Mathieu-Daudé wrote:
> Move code evaluation from preprocessor to compiler so
> both if() ladders are processed. Mostly style change.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   hw/xtensa/xtfpga.c | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
> index 955e8867a3..228f00b045 100644
> --- a/hw/xtensa/xtfpga.c
> +++ b/hw/xtensa/xtfpga.c
> @@ -415,8 +415,7 @@ static void xtfpga_init(const XtfpgaBoardDesc *board, MachineState *machine)
>               }
>           }
>           if (entry_point != env->pc) {
> -            uint8_t boot[] = {
> -#if TARGET_BIG_ENDIAN
> +            uint8_t boot_be[] = {
>                   0x60, 0x00, 0x08,       /* j    1f */
>                   0x00,                   /* .literal_position */
>                   0x00, 0x00, 0x00, 0x00, /* .literal entry_pc */
> @@ -425,7 +424,8 @@ static void xtfpga_init(const XtfpgaBoardDesc *board, MachineState *machine)
>                   0x10, 0xff, 0xfe,       /* l32r a0, entry_pc */
>                   0x12, 0xff, 0xfe,       /* l32r a2, entry_a2 */
>                   0x0a, 0x00, 0x00,       /* jx   a0 */
> -#else
> +            };
> +            uint8_t boot_le[] = {
>                   0x06, 0x02, 0x00,       /* j    1f */
>                   0x00,                   /* .literal_position */
>                   0x00, 0x00, 0x00, 0x00, /* .literal entry_pc */
> @@ -434,14 +434,16 @@ static void xtfpga_init(const XtfpgaBoardDesc *board, MachineState *machine)
>                   0x01, 0xfe, 0xff,       /* l32r a0, entry_pc */
>                   0x21, 0xfe, 0xff,       /* l32r a2, entry_a2 */
>                   0xa0, 0x00, 0x00,       /* jx   a0 */
> -#endif
>               };
> +            const size_t boot_sz = TARGET_BIG_ENDIAN ? sizeof(boot_be)
> +                                                     : sizeof(boot_le);
> +            uint8_t *boot = TARGET_BIG_ENDIAN ? boot_be : boot_le;
>               uint32_t entry_pc = tswap32(entry_point);
>               uint32_t entry_a2 = tswap32(tagptr);
>   
>               memcpy(boot + 4, &entry_pc, sizeof(entry_pc));
>               memcpy(boot + 8, &entry_a2, sizeof(entry_a2));
> -            cpu_physical_memory_write(env->pc, boot, sizeof(boot));
> +            cpu_physical_memory_write(env->pc, boot, boot_sz);
>           }
>       } else {
>           if (flash) {

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