Add support for clang by adding a toolchain folder for it with the appropriate files. Add compilation support for clang on linux by adding a new target. Signed-off-by: Bruce Richardson --- config/defconfig_x86_64-native-linuxapp-clang | 63 ++++++++++++++++++++++ mk/toolchain/clang/rte.toolchain-compat.mk | 43 +++++++++++++++ mk/toolchain/clang/rte.vars.mk | 77 +++++++++++++++++++++++++++ 3 files changed, 183 insertions(+) create mode 100644 config/defconfig_x86_64-native-linuxapp-clang create mode 100644 mk/toolchain/clang/rte.toolchain-compat.mk create mode 100644 mk/toolchain/clang/rte.vars.mk diff --git a/config/defconfig_x86_64-native-linuxapp-clang b/config/defconfig_x86_64-native-linuxapp-clang new file mode 100644 index 0000000..31f2aa4 --- /dev/null +++ b/config/defconfig_x86_64-native-linuxapp-clang @@ -0,0 +1,63 @@ +# 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. +# + +#include "common_linuxapp" + +# +# machine can define specific variables or action for a specific board +# RTE_MACHINE can be: +# default nothing specific +# native current machine +# atm Intel® Atom™ microarchitecture +# nhm Intel® microarchitecture code name Nehalem +# wsm Intel® microarchitecture code name Westmere +# snb Intel® microarchitecture code name Sandy Bridge +# ivb Intel® microarchitecture code name Ivy Bridge +# +# Note: if your compiler does not support the relevant -march options, +# it will be compiled with whatever latest processor the compiler supports! +# +CONFIG_RTE_MACHINE="native" + +# +# define the architecture we compile for. +# CONFIG_RTE_ARCH can be i686, x86_64, x86_64_32 +# +CONFIG_RTE_ARCH="x86_64" +CONFIG_RTE_ARCH_X86_64=y + +# +# The compiler we use. +# Can be gcc or icc. +# +CONFIG_RTE_TOOLCHAIN="clang" +CONFIG_RTE_TOOLCHAIN_CLANG=y diff --git a/mk/toolchain/clang/rte.toolchain-compat.mk b/mk/toolchain/clang/rte.toolchain-compat.mk new file mode 100644 index 0000000..862b7df --- /dev/null +++ b/mk/toolchain/clang/rte.toolchain-compat.mk @@ -0,0 +1,43 @@ +# 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. + +# +# CPUID-related options +# +# This was added to support compiler versions which might not support all the +# flags we need +# + +#find out CLANG version + +CLANG_MAJOR_VERSION = $(shell $(CC) -dumpversion | cut -f1 -d.) + +CLANG_MINOR_VERSION = $(shell $(CC) -dumpversion | cut -f2 -d.) diff --git a/mk/toolchain/clang/rte.vars.mk b/mk/toolchain/clang/rte.vars.mk new file mode 100644 index 0000000..d4e6862 --- /dev/null +++ b/mk/toolchain/clang/rte.vars.mk @@ -0,0 +1,77 @@ +# 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. + +# +# toolchain: +# +# - define CC, LD, AR, AS, ... (overriden by cmdline value) +# - define TOOLCHAIN_CFLAGS variable (overriden by cmdline value) +# - define TOOLCHAIN_LDFLAGS variable (overriden by cmdline value) +# - define TOOLCHAIN_ASFLAGS variable (overriden by cmdline value) +# +# examples for RTE_TOOLCHAIN: gcc, icc +# + +ifeq ($(KERNELRELEASE),) +CC = $(CROSS)clang +else +CC = $(CROSS)gcc +endif +CPP = $(CROSS)cpp +# for now, we don't use as but nasm. +# AS = $(CROSS)as +AS = nasm +AR = $(CROSS)ar +LD = $(CROSS)ld +OBJCOPY = $(CROSS)objcopy +OBJDUMP = $(CROSS)objdump +STRIP = $(CROSS)strip +READELF = $(CROSS)readelf +GCOV = $(CROSS)gcov + +HOSTCC = clang +HOSTAS = as + +TOOLCHAIN_ASFLAGS = +TOOLCHAIN_CFLAGS = +TOOLCHAIN_LDFLAGS = + +WERROR_FLAGS := -W -Wall -Werror -Wstrict-prototypes -Wmissing-prototypes +WERROR_FLAGS += -Wmissing-declarations -Wold-style-definition -Wpointer-arith +WERROR_FLAGS += -Wnested-externs -Wcast-qual +WERROR_FLAGS += -Wformat-nonliteral -Wformat-security +WERROR_FLAGS += -Wundef -Wwrite-strings + +# process cpu flags +include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.toolchain-compat.mk + +export CC AS AR LD OBJCOPY OBJDUMP STRIP READELF +export TOOLCHAIN_CFLAGS TOOLCHAIN_LDFLAGS TOOLCHAIN_ASFLAGS -- 1.9.3