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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.
#
# arch:
#
# - define ARCH variable (overridden by cmdline or by previous
# optional define in machine .mk)
# - define CROSS variable (overridden by cmdline or previous define
# in machine .mk)
# - define CPU_CFLAGS variable (overridden by cmdline or previous
# define in machine .mk)
# - define CPU_LDFLAGS variable (overridden by cmdline or previous
# define in machine .mk)
# - define CPU_ASFLAGS variable (overridden by cmdline or previous
# define in machine .mk)
# - may override any previously defined variable
#
# examples for CONFIG_RTE_ARCH: i686, x86_64, x86_64_32
#
ARCH ?= x86_64
ARCH_DIR := x86
CROSS ?=
CPU_CFLAGS ?= -mx32
CPU_LDFLAGS ?= -melf32_x86_64
#CPU_ASFLAGS ?= -felf64
# x32 is supported by Linux distribution with gcc4.8 and newer in some
# cases there is backported support in gcc4.6
ifneq ($(shell echo | $(CC) $(CPU_CFLAGS) -E - 2>/dev/null 1>/dev/null && echo 0), 0)
$(error This version of GCC does not support x32 ABI)
endif
export ARCH CROSS CPU_CFLAGS CPU_LDFLAGS CPU_ASFLAGS
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