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

[Hongxu Jia]

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

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