Commit 6733af8d authored Nov 29, 2022 by Alexey Marchuk Committed by Konrad Sztyber Dec 06, 2022

mk: Check if compiler supports -mno-avx512f



Some old compilers like gcc 4.8.5 don't support
this flag, that leads to compilation failure.
Add a check that the compiler supports the flag,
it will allow to compile SPDK with old versions
of gcc

Signed-off-by: Alexey Marchuk <alexeymar@nvidia.com>
Change-Id: I80fd6e4f1f792be107ecac593318e1da877219c4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15688


Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>

parent 1c6f8082

mk/spdk.common.mk

+2 −0

Original line number	Diff line number	Diff line
		@@ -71,11 +71,13 @@ COMMON_CFLAGS += -march=$(TARGET_ARCHITECTURE)
		endif

		ifeq ($(TARGET_MACHINE),x86_64)
		ifneq (,$(shell $(CC) --target-help \| grep -qe -mavx512f && echo 1))
		# Don't use AVX-512 instructions in SPDK code - it breaks Valgrind for
		# some cases where compiler decides to hyper-optimize a relatively
		# simple operation (like int-to-float converstion) using AVX-512
		COMMON_CFLAGS += -mno-avx512f
		endif
		endif

		ifeq ($(CONFIG_WERROR), y)
		COMMON_CFLAGS += -Werror

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