build: allow using wildcards to disable drivers

[dpdk.git] / mk / machine / native / rte.vars.mk

diff --git a/mk/machine/native/rte.vars.mk b/mk/machine/native/rte.vars.mk
index 5f4c7df..8c96e3f 100644 (file)
--- a/mk/machine/native/rte.vars.mk
+++ b/mk/machine/native/rte.vars.mk
@@ -1,49 +1,19 @@
-#   BSD LICENSE
-# 
-#   Copyright(c) 2010-2012 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.
-# 
-#  version: DPDK.L.1.2.3-3
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2010-2014 Intel Corporation
 
 #
 # machine:
 #
-#   - can define ARCH variable (overriden by cmdline value)
-#   - can define CROSS variable (overriden by cmdline value)
-#   - define MACHINE_CFLAGS variable (overriden by cmdline value)
-#   - define MACHINE_LDFLAGS variable (overriden by cmdline value)
-#   - define MACHINE_ASFLAGS variable (overriden by cmdline value)
-#   - can define CPU_CFLAGS variable (overriden by cmdline value) that
+#   - can define ARCH variable (overridden by cmdline value)
+#   - can define CROSS variable (overridden by cmdline value)
+#   - define MACHINE_CFLAGS variable (overridden by cmdline value)
+#   - define MACHINE_LDFLAGS variable (overridden by cmdline value)
+#   - define MACHINE_ASFLAGS variable (overridden by cmdline value)
+#   - can define CPU_CFLAGS variable (overridden by cmdline value) that
 #     overrides the one defined in arch.
-#   - can define CPU_LDFLAGS variable (overriden by cmdline value) that
+#   - can define CPU_LDFLAGS variable (overridden by cmdline value) that
 #     overrides the one defined in arch.
-#   - can define CPU_ASFLAGS variable (overriden by cmdline value) that
+#   - can define CPU_ASFLAGS variable (overridden by cmdline value) that
 #     overrides the one defined in arch.
 #   - may override any previously defined variable
 #
@@ -58,54 +28,12 @@
 # CPU_ASFLAGS =
 
 MACHINE_CFLAGS = -march=native
-AUTO_CPUFLAGS = $(shell cat /proc/cpuinfo | grep flags -m 1)
 
-# adding flags to CPUFLAGS
-
-ifneq ($(filter $(AUTO_CPUFLAGS),sse),)
- CPUFLAGS += SSE
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),sse2),)
- CPUFLAGS += SSE2
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),sse3),)
- CPUFLAGS += SSE3
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),ssse3),)
- CPUFLAGS += SSSE3
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),sse4_1),)
- CPUFLAGS += SSE4_1
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),sse4_2),)
- CPUFLAGS += SSE4_2
+# On FreeBSD systems, sometimes the correct CPU type is not picked up.
+# To get everything to compile, we need SSE4.2 support, so check if that is
+# reported by compiler. If not, check if the CPU actually supports it, and if
+# so, set the compilation target to be a corei7, minimum target with SSE4.2.
+SSE42_SUPPORT=$(shell $(CC) -march=native -dM -E - </dev/null | grep SSE4_2)
+ifeq ($(SSE42_SUPPORT),)
+    MACHINE_CFLAGS = -march=corei7
 endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),aes),)
- CPUFLAGS += AES
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),pclmulqdq),)
- CPUFLAGS += PCLMULQDQ
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),avx),)
- CPUFLAGS += AVX
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),rdrnd),)
- CPUFLAGS += RDRAND
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),fsgsbase),)
- CPUFLAGS += FSGSBASE
-endif
-
-ifneq ($(filter $(AUTO_CPUFLAGS),f16c),)
- CPUFLAGS += F16C
-endif
\ No newline at end of file