[FFmpeg-devel] [PATCH 2/3] libavutil/aarch64/cpu.c: HWCAPS requires inline asm support.

[Martin Storsjö]

On Sun, 29 Oct 2023, Reimar.Doeffinger at gmx.de wrote:

> From: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
>
> Fixes compilation with tcc, which does not have aarch64
> inline asm support.
> ---
> libavutil/aarch64/cpu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavutil/aarch64/cpu.c b/libavutil/aarch64/cpu.c
> index bd780e8591..0d7c1e268d 100644
> --- a/libavutil/aarch64/cpu.c
> +++ b/libavutil/aarch64/cpu.c
> @@ -34,7 +34,7 @@ static int detect_flags(void)
>
>     hwcap = getauxval(AT_HWCAP);
> 
> -#if defined(HWCAP_CPUID)
> +#if defined(HWCAP_CPUID) && HAVE_INLINE_ASM
>     // We can check for DOTPROD and I8MM using HWCAP_ASIMDDP and
>     // HWCAP2_I8MM too, avoiding to read the CPUID registers (which triggers
>     // a trap, handled by the kernel). However the HWCAP_* defines for these
> -- 
> 2.39.3 (Apple Git-145)

LGTM, thanks!

// Martin