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Diffstat (limited to 'mk/toolchain/gcc/rte.vars.mk')
| -rw-r--r-- | mk/toolchain/gcc/rte.vars.mk | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/mk/toolchain/gcc/rte.vars.mk b/mk/toolchain/gcc/rte.vars.mk new file mode 100644 index 00000000..ff70f3d9 --- /dev/null +++ b/mk/toolchain/gcc/rte.vars.mk @@ -0,0 +1,103 @@ +# 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) +# + +CC = $(CROSS)gcc +KERNELCC = $(CROSS)gcc +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 = $(CROSS)gcov + +ifeq ("$(origin CC)", "command line") +HOSTCC = $(CC) +else +HOSTCC = gcc +endif +HOSTAS = as + +TOOLCHAIN_ASFLAGS = +TOOLCHAIN_CFLAGS = +TOOLCHAIN_LDFLAGS = + +ifeq ($(CONFIG_RTE_LIBRTE_GCOV),y) +TOOLCHAIN_CFLAGS += --coverage +TOOLCHAIN_LDFLAGS += --coverage +ifeq (,$(findstring -O0,$(EXTRA_CFLAGS))) + $(warning "EXTRA_CFLAGS doesn't contains -O0, coverage will be inaccurate with optimizations enabled") +endif +endif + +WERROR_FLAGS := -W -Wall -Wstrict-prototypes -Wmissing-prototypes +WERROR_FLAGS += -Wmissing-declarations -Wold-style-definition -Wpointer-arith +WERROR_FLAGS += -Wcast-align -Wnested-externs -Wcast-qual +WERROR_FLAGS += -Wformat-nonliteral -Wformat-security +WERROR_FLAGS += -Wundef -Wwrite-strings + +ifeq ($(RTE_DEVEL_BUILD),y) +WERROR_FLAGS += -Werror +endif + +# There are many issues reported for ARMv7 architecture +# which are not necessarily fatal. Report as warnings. +ifeq ($(CONFIG_RTE_ARCH_ARMv7),y) +WERROR_FLAGS += -Wno-error=cast-align +endif + +# process cpu flags +include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.toolchain-compat.mk + +# workaround GCC bug with warning "missing initializer" for "= {0}" +ifeq ($(shell test $(GCC_VERSION) -lt 47 && echo 1), 1) +WERROR_FLAGS += -Wno-missing-field-initializers +endif +# workaround GCC bug with warning "may be used uninitialized" +ifeq ($(shell test $(GCC_VERSION) -lt 47 && echo 1), 1) +WERROR_FLAGS += -Wno-uninitialized +endif + +export CC AS AR LD OBJCOPY OBJDUMP STRIP READELF +export TOOLCHAIN_CFLAGS TOOLCHAIN_LDFLAGS TOOLCHAIN_ASFLAGS |