64 lines
2.6 KiB
Makefile
64 lines
2.6 KiB
Makefile
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# BSD LICENSE
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#
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# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# arch:
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#
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# - define ARCH variable (overridden by cmdline or by previous
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# optional define in machine .mk)
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# - define CROSS variable (overridden by cmdline or previous define
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# in machine .mk)
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# - define CPU_CFLAGS variable (overridden by cmdline or previous
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# define in machine .mk)
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# - define CPU_LDFLAGS variable (overridden by cmdline or previous
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# define in machine .mk)
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# - define CPU_ASFLAGS variable (overridden by cmdline or previous
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# define in machine .mk)
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# - may override any previously defined variable
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#
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# examples for CONFIG_RTE_ARCH: i686, x86_64, x86_64_32
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#
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ARCH ?= x86_64
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ARCH_DIR := x86
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CROSS ?=
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CPU_CFLAGS ?= -mx32
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CPU_LDFLAGS ?= -melf32_x86_64
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#CPU_ASFLAGS ?= -felf64
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# x32 is supported by Linux distribution with gcc4.8 and newer in some
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# cases there is backported support in gcc4.6
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ifneq ($(shell echo | $(CC) $(CPU_CFLAGS) -E - 2>/dev/null 1>/dev/null && echo 0), 0)
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$(error This version of GCC does not support x32 ABI)
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endif
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export ARCH CROSS CPU_CFLAGS CPU_LDFLAGS CPU_ASFLAGS
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