f27769f796
Increase the default baseline from "core2" architecture to "corei7". This means that all builds will have SSE4.2 support included, and we can remove special case manipulation of CFLAGS for the same. Naturally, this does mean that some machines that previously could run DPDK now can't do so, but hardware with SSE4.2 has been around for almost a decade now, so this should not be a major problem. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
68 lines
2.9 KiB
Makefile
68 lines
2.9 KiB
Makefile
# 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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# machine:
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#
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# - can define ARCH variable (overridden by cmdline value)
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# - can define CROSS variable (overridden by cmdline value)
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# - define MACHINE_CFLAGS variable (overridden by cmdline value)
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# - define MACHINE_LDFLAGS variable (overridden by cmdline value)
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# - define MACHINE_ASFLAGS variable (overridden by cmdline value)
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# - can define CPU_CFLAGS variable (overridden by cmdline value) that
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# overrides the one defined in arch.
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# - can define CPU_LDFLAGS variable (overridden by cmdline value) that
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# overrides the one defined in arch.
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# - can define CPU_ASFLAGS variable (overridden by cmdline value) that
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# overrides the one defined in arch.
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# - may override any previously defined variable
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#
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# ARCH =
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# CROSS =
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# MACHINE_CFLAGS =
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# MACHINE_LDFLAGS =
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# MACHINE_ASFLAGS =
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# CPU_CFLAGS =
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# CPU_LDFLAGS =
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# CPU_ASFLAGS =
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MACHINE_CFLAGS = -march=native
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# On FreeBSD systems, sometimes the correct CPU type is not picked up.
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# To get everything to compile, we need SSE4.2 support, so check if that is
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# reported by compiler. If not, check if the CPU actually supports it, and if
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# so, set the compilation target to be a corei7, minimum target with SSE4.2.
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SSE42_SUPPORT=$(shell $(CC) -march=native -dM -E - </dev/null | grep SSE4_2)
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ifeq ($(SSE42_SUPPORT),)
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MACHINE_CFLAGS = -march=corei7
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endif
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