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authorC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:54:47 -0700
committerC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:55:43 -0700
commit5129044dce1f85ce4950f31bcf90f3886466f06a (patch)
tree1c6269614c0c15ffef8451c58ae8f8b30a1bc804 /mk/toolchain/gcc/rte.toolchain-compat.mk
parente04be89c2409570e0055b2cda60bd11395bb93b0 (diff)
Imported upstream release 16.04
* gbp import-orig ../dpdk-16.04.tar.xz Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3 Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>
Diffstat (limited to 'mk/toolchain/gcc/rte.toolchain-compat.mk')
-rw-r--r--mk/toolchain/gcc/rte.toolchain-compat.mk92
1 files changed, 92 insertions, 0 deletions
diff --git a/mk/toolchain/gcc/rte.toolchain-compat.mk b/mk/toolchain/gcc/rte.toolchain-compat.mk
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+++ b/mk/toolchain/gcc/rte.toolchain-compat.mk
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+# 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.
+
+#
+# CPUID-related options
+#
+# This was added to support compiler versions which might not support all the
+# flags we need
+#
+
+#find out GCC version
+
+GCC_MAJOR = $(shell echo __GNUC__ | $(CC) -E -x c - | tail -n 1)
+GCC_MINOR = $(shell echo __GNUC_MINOR__ | $(CC) -E -x c - | tail -n 1)
+GCC_VERSION = $(GCC_MAJOR)$(GCC_MINOR)
+
+# if GCC is older than 4.x
+ifeq ($(shell test $(GCC_VERSION) -lt 40 && echo 1), 1)
+ MACHINE_CFLAGS =
+$(warning You are using GCC < 4.x. This is neither supported, nor tested.)
+
+
+else
+# GCC graceful degradation
+# GCC 4.2.x - added support for generic target
+# GCC 4.3.x - added support for core2, ssse3, sse4.1, sse4.2
+# GCC 4.4.x - added support for avx, aes, pclmul
+# GCC 4.5.x - added support for atom
+# GCC 4.6.x - added support for corei7, corei7-avx
+# GCC 4.7.x - added support for fsgsbase, rdrnd, f16c, core-avx-i, core-avx2
+# GCC 4.9.x - added support for armv8-a+crc
+#
+ ifeq ($(shell test $(GCC_VERSION) -le 49 && echo 1), 1)
+ MACHINE_CFLAGS := $(patsubst -march=armv8-a+crc,-march=armv8-a+crc -D__ARM_FEATURE_CRC32=1,$(MACHINE_CFLAGS))
+ endif
+ ifeq ($(shell test $(GCC_VERSION) -le 47 && echo 1), 1)
+ MACHINE_CFLAGS := $(patsubst -march=core-avx-i,-march=corei7-avx,$(MACHINE_CFLAGS))
+ MACHINE_CFLAGS := $(patsubst -march=core-avx2,-march=core-avx2,$(MACHINE_CFLAGS))
+ endif
+ ifeq ($(shell test $(GCC_VERSION) -lt 46 && echo 1), 1)
+ MACHINE_CFLAGS := $(patsubst -march=corei7-avx,-march=core2 -maes -mpclmul -mavx,$(MACHINE_CFLAGS))
+ MACHINE_CFLAGS := $(patsubst -march=corei7,-march=core2 -maes -mpclmul,$(MACHINE_CFLAGS))
+ endif
+ ifeq ($(shell test $(GCC_VERSION) -lt 45 && echo 1), 1)
+ MACHINE_CFLAGS := $(patsubst -march=atom,-march=core2 -mssse3,$(MACHINE_CFLAGS))
+ endif
+ ifeq ($(shell test $(GCC_VERSION) -lt 44 && echo 1), 1)
+ MACHINE_CFLAGS := $(filter-out -mavx -mpclmul -maes,$(MACHINE_CFLAGS))
+ ifneq ($(findstring SSE4_2, $(CPUFLAGS)),)
+ MACHINE_CFLAGS += -msse4.2
+ endif
+ ifneq ($(findstring SSE4_1, $(CPUFLAGS)),)
+ MACHINE_CFLAGS += -msse4.1
+ endif
+ endif
+ ifeq ($(shell test $(GCC_VERSION) -lt 43 && echo 1), 1)
+ MACHINE_CFLAGS := $(filter-out -msse% -mssse%,$(MACHINE_CFLAGS))
+ MACHINE_CFLAGS := $(patsubst -march=core2,-march=generic,$(MACHINE_CFLAGS))
+ MACHINE_CFLAGS += -msse3
+ endif
+ ifeq ($(shell test $(GCC_VERSION) -lt 42 && echo 1), 1)
+ MACHINE_CFLAGS := $(filter-out -march% -mtune% -msse%,$(MACHINE_CFLAGS))
+ endif
+endif