3 # Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
10 # * Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # * Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in
14 # the documentation and/or other materials provided with the
16 # * Neither the name of Intel Corporation nor the names of its
17 # contributors may be used to endorse or promote products derived
18 # from this software without specific prior written permission.
20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 # this makefile is called from the generic rte.vars.mk and is
33 # used to set the RTE_CPUFLAG_* environment variables giving details
34 # of what instruction sets the target cpu supports.
36 AUTO_CPUFLAGS
:= $(shell $(CC
) $(MACHINE_CFLAGS
) $(WERROR_FLAGS
) $(EXTRA_CFLAGS
) -dM
-E
- < /dev
/null
)
38 # adding flags to CPUFLAGS
40 ifneq ($(filter $(AUTO_CPUFLAGS
),__SSE__
),)
44 ifneq ($(filter $(AUTO_CPUFLAGS
),__SSE2__
),)
48 ifneq ($(filter $(AUTO_CPUFLAGS
),__SSE3__
),)
52 ifneq ($(filter $(AUTO_CPUFLAGS
),__SSSE3__
),)
56 ifneq ($(filter $(AUTO_CPUFLAGS
),__SSE4_1__
),)
60 ifneq ($(filter $(AUTO_CPUFLAGS
),__SSE4_2__
),)
64 ifneq ($(filter $(AUTO_CPUFLAGS
),__AES__
),)
68 ifneq ($(filter $(AUTO_CPUFLAGS
),__PCLMUL__
),)
72 ifneq ($(filter $(AUTO_CPUFLAGS
),__AVX__
),)
73 ifeq ($(CONFIG_RTE_ENABLE_AVX
),y
)
78 ifneq ($(filter $(AUTO_CPUFLAGS
),__RDRND__
),)
82 ifneq ($(filter $(AUTO_CPUFLAGS
),__FSGSBASE__
),)
86 ifneq ($(filter $(AUTO_CPUFLAGS
),__F16C__
),)
90 ifneq ($(filter $(AUTO_CPUFLAGS
),__AVX2__
),)
91 ifeq ($(CONFIG_RTE_ENABLE_AVX
),y
)
96 ifneq ($(filter $(AUTO_CPUFLAGS
),__AVX512F__
),)
97 ifeq ($(CONFIG_RTE_ENABLE_AVX512
),y
)
102 # IBM Power CPU flags
103 ifneq ($(filter $(AUTO_CPUFLAGS
),__PPC64__
),)
107 ifneq ($(filter $(AUTO_CPUFLAGS
),__PPC32__
),)
111 ifneq ($(filter $(AUTO_CPUFLAGS
),__vector
),)
115 ifneq ($(filter $(AUTO_CPUFLAGS
),__builtin_vsx_xvnmaddadp
),)
120 ifneq ($(filter $(AUTO_CPUFLAGS
),__ARM_NEON
),)
124 ifneq ($(filter $(AUTO_CPUFLAGS
),__ARM_FEATURE_CRC32
),)
129 MACHINE_CFLAGS
+= $(addprefix -DRTE_MACHINE_CPUFLAG_
,$(CPUFLAGS
))
131 # To strip whitespace
134 space
:= $(empty
) $(empty
)
135 CPUFLAGSTMP1
:= $(addprefix RTE_CPUFLAG_
,$(CPUFLAGS
))
136 CPUFLAGSTMP2
:= $(subst $(space
),$(comma
),$(CPUFLAGSTMP1
))
137 CPUFLAGS_LIST
:= -DRTE_COMPILE_TIME_CPUFLAGS
=$(CPUFLAGSTMP2
)