[Buildroot] [PATCH 1/1] toolchain/toolchain-buildroot: PPC64 support in musl requires ALTIVEC

[Romain Naour]

Hi Vincent,

Le 31/01/2020 à 15:41, Vincent Fazio a écrit :
> musl assumes all PPC64(LE) CPUs support ALTIVEC instructions. However,
> the e5500 does not support ALTIVEC so builds targeting this CPU using
> musl will generate illegal instructions.
> 
> Disable musl if the PPC64(LE) CPU does not support ALTIVEC instructions.

Thanks for this patch.

Can you add these two links from my toolchains-builder instance:
https://gitlab.com/kubu93/toolchains-builder/-/jobs/418092743
https://gitlab.com/kubu93/toolchains-builder/-/jobs/418092744

Also I'm adding Matt in Cc:

Best regards,
Romain

> 
> Signed-off-by: Vincent Fazio <vfazio at xes-inc.com>
> ---
>  toolchain/toolchain-buildroot/Config.in | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in
> index a980f766ac..09a46822c9 100644
> --- a/toolchain/toolchain-buildroot/Config.in
> +++ b/toolchain/toolchain-buildroot/Config.in
> @@ -83,8 +83,10 @@ config BR2_TOOLCHAIN_BUILDROOT_MUSL
>  	bool "musl"
>  	depends on BR2_aarch64	   || BR2_arm   || BR2_armeb   || BR2_i386 || \
>  		   BR2_microblaze  || BR2_mips  || BR2_mipsel  || BR2_mips64 || \
> -		   BR2_mips64el    || BR2_or1k  || BR2_powerpc || BR2_powerpc64 || \
> -		   BR2_powerpc64le || BR2_RISCV_64 || BR2_sh   || BR2_x86_64
> +		   BR2_mips64el    || BR2_or1k  || BR2_powerpc || BR2_RISCV_64 || \
> +		   BR2_sh	   || BR2_x86_64 || \
> +		   ((BR2_powerpc64 || BR2_powerpc64le) && BR2_POWERPC_CPU_HAS_ALTIVEC)
> +		   # musl assumes all PPC64 targets support ALTIVEC instructions
>  	depends on !BR2_powerpc_SPE # not supported, build breaks
>  	# sh2 nommu is supported by musl, but we don't have support
>  	# for it in Buildroot.
>