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
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