build: check AVX512 rather than binutils version

[dpdk.git] / config / x86 / meson.build

diff --git a/config/x86/meson.build b/config/x86/meson.build
index c05c2f4..6ec020e 100644 (file)
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -1,43 +1,19 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2017 Intel Corporation.
-#   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) 2017-2019 Intel Corporation
 
-# for checking defines we need to use the correct compiler flags
-march_opt = '-march=@0@'.format(machine)
+# get binutils version for the workaround of Bug 97
+if not is_windows
+       binutils_ok = run_command(binutils_avx512_check)
+       if binutils_ok.returncode() != 0 and cc.has_argument('-mno-avx512f')
+               machine_args += '-mno-avx512f'
+               warning('Binutils error with AVX512 assembly, disabling AVX512 support')
+       endif
+endif
 
 # we require SSE4.2 for DPDK
-sse_errormsg = '''SSE4.2 instruction set is required for DPDK.
-Please set the machine type to "nehalem" or "corei7" or higher value'''
-
-if cc.get_define('__SSE4_2__', args: march_opt) == ''
-       error(sse_errormsg)
+if cc.get_define('__SSE4_2__', args: machine_args) == ''
+       message('SSE 4.2 not enabled by default, explicitly enabling')
+       machine_args += '-msse4'
 endif
 
 base_flags = ['SSE', 'SSE2', 'SSE3','SSSE3', 'SSE4_1', 'SSE4_2']
@@ -46,35 +22,29 @@ foreach f:base_flags
        compile_time_cpuflags += ['RTE_CPUFLAG_' + f]
 endforeach
 
+optional_flags = ['AES', 'PCLMUL',
+               'AVX', 'AVX2', 'AVX512F',
+               'RDRND', 'RDSEED']
+foreach f:optional_flags
+       if cc.get_define('__@0@__'.format(f), args: machine_args) == '1'
+               if f == 'PCLMUL' # special case flags with different defines
+                       f = 'PCLMULQDQ'
+               elif f == 'RDRND'
+                       f = 'RDRAND'
+               endif
+               dpdk_conf.set('RTE_MACHINE_CPUFLAG_' + f, 1)
+               compile_time_cpuflags += ['RTE_CPUFLAG_' + f]
+       endif
+endforeach
+
+
 dpdk_conf.set('RTE_ARCH_X86', 1)
-if (host_machine.cpu_family() == 'x86_64')
+if dpdk_conf.get('RTE_ARCH_64')
        dpdk_conf.set('RTE_ARCH_X86_64', 1)
        dpdk_conf.set('RTE_ARCH', 'x86_64')
-       dpdk_conf.set('RTE_ARCH_64', 1)
 else
        dpdk_conf.set('RTE_ARCH_I686', 1)
        dpdk_conf.set('RTE_ARCH', 'i686')
 endif
 
-if cc.get_define('__AES__', args: march_opt) != ''
-       dpdk_conf.set('RTE_MACHINE_CPUFLAG_AES', 1)
-       compile_time_cpuflags += ['RTE_CPUFLAG_AES']
-endif
-if cc.get_define('__PCLMUL__', args: march_opt) != ''
-       dpdk_conf.set('RTE_MACHINE_CPUFLAG_PCLMULQDQ', 1)
-       compile_time_cpuflags += ['RTE_CPUFLAG_PCLMULQDQ']
-endif
-if cc.get_define('__AVX__', args: march_opt) != ''
-       dpdk_conf.set('RTE_MACHINE_CPUFLAG_AVX', 1)
-       compile_time_cpuflags += ['RTE_CPUFLAG_AVX']
-endif
-if cc.get_define('__AVX2__', args: march_opt) != ''
-       dpdk_conf.set('RTE_MACHINE_CPUFLAG_AVX2', 1)
-       compile_time_cpuflags += ['RTE_CPUFLAG_AVX2']
-endif
-if cc.get_define('__AVX512F__', args: march_opt) != ''
-       dpdk_conf.set('RTE_MACHINE_CPUFLAG_AVX512F', 1)
-       compile_time_cpuflags += ['RTE_CPUFLAG_AVX512F']
-endif
-
 dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)