-# BSD LICENSE
-#
-# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# * Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in
-# the documentation and/or other materials provided with the
-# distribution.
-# * Neither the name of Intel Corporation nor the names of its
-# contributors may be used to endorse or promote products derived
-# from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2010-2014 Intel Corporation
# this makefile is called from the generic rte.vars.mk and is
# used to set the RTE_CPUFLAG_* environment variables giving details
CPUFLAGS += RDRAND
endif
+ifneq ($(filter $(AUTO_CPUFLAGS),__RDSEED__),)
+CPUFLAGS += RDSEED
+endif
+
ifneq ($(filter $(AUTO_CPUFLAGS),__FSGSBASE__),)
CPUFLAGS += FSGSBASE
endif
ifneq ($(filter $(AUTO_CPUFLAGS),__AVX512F__),)
ifeq ($(CONFIG_RTE_ENABLE_AVX512),y)
CPUFLAGS += AVX512F
+else
+# disable AVX512F support for GCC & binutils 2.30 as a workaround for Bug 97
+ifeq ($(FORCE_DISABLE_AVX512),y)
+MACHINE_CFLAGS += -mno-avx512f
+endif
endif
endif
endif
# ARM flags
-ifneq ($(filter $(AUTO_CPUFLAGS),__ARM_NEON),)
+ifneq ($(filter __ARM_NEON __aarch64__,$(AUTO_CPUFLAGS)),)
CPUFLAGS += NEON
endif
MACHINE_CFLAGS += $(addprefix -DRTE_MACHINE_CPUFLAG_,$(CPUFLAGS))
-# Check if the compiler suppoerts AVX512
-CC_SUPPORT_AVX512F := $(shell $(CC) -mavx512f -dM -E - < /dev/null 2>&1 | grep -q AVX512 && echo 1)
-ifeq ($(CC_SUPPORT_AVX512F),1)
-ifeq ($(CONFIG_RTE_ENABLE_AVX512),y)
-MACHINE_CFLAGS += -DCC_SUPPORT_AVX512F
-endif
-endif
-
-# Check if the compiler supports AVX2
-CC_SUPPORT_AVX2 := $(shell $(CC) -mavx2 -dM -E - < /dev/null 2>&1 | grep -q AVX2 && echo 1)
-ifeq ($(CC_SUPPORT_AVX2),1)
-MACHINE_CFLAGS += -DCC_SUPPORT_AVX2
-endif
-
# To strip whitespace
comma:= ,
empty:=