[meta-intel] [meta-dpdk][PATCH] dpdk: workaround sse mismatch error

[Hongxu Jia]

On 2018年10月11日 13:53, Hongxu Jia wrote:
> On 2018年10月11日 13:21, Anuj Mittal wrote:
>> I think we shouldn't be building with -march=corei7 (which is what it
>> will do if you remove HOST_CC_ARCH) if the underlying hardware doesn't
>> support it. It probably wouldn't even work since default value is
>> core2duo for qemu in tune-core2.inc which doesn't support SSE 4.2 (which
>> is a requirement for dpdk).
>>
>> In my opinion, we should keep HOST_CC_ARCH and anyone using dpdk should
>> make sure that they define COMPATIBLE_MACHINE and DPDK_TARGET_MACHINE
>> properly depending on the arch that they are building for. Does that
>> make sense?
> How about remove `-march=corei7' from default value
> --- a/mk/machine/default/rte.vars.mk
> +++ b/mk/machine/default/rte.vars.mk
> @@ -26,5 +26,3 @@
>  # CPU_CFLAGS =
>  # CPU_LDFLAGS =
>  # CPU_ASFLAGS =
> -
> -MACHINE_CFLAGS += -march=corei7
>
After build test, directly remove it doesn't work, the error is still here,
as you said, let customer define COMPATIBLE_MACHINE and DPDK_TARGET_MACHINE

//Hongxu

> If customer set DPDK_TARGET_MACHINE, the should assure
> `-march' in mk/machine/**/rte.vars.mk matches with the one
> in var-HOST_CC_ARCH
>
> //Hongxu
>
>
>> Thanks,
>>
>> Anuj
>
>