X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=mk%2Ftoolchain%2Fgcc%2Frte.vars.mk;h=3b907e2019c6c5b26eaaa5d5f9eb8d4ec3bbd0ff;hb=ea978e7c2255ed34046ae1c0dfbb908529c67e12;hp=09bcbfe48bf6ea0fca58461630a725a098f17903;hpb=dada9ef6edc59015b6674b5a95258787c71401b0;p=dpdk.git diff --git a/mk/toolchain/gcc/rte.vars.mk b/mk/toolchain/gcc/rte.vars.mk index 09bcbfe48b..3b907e2019 100644 --- a/mk/toolchain/gcc/rte.vars.mk +++ b/mk/toolchain/gcc/rte.vars.mk @@ -1,47 +1,45 @@ # BSD LICENSE -# -# Copyright(c) 2010-2012 Intel Corporation. All rights reserved. +# +# 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 +# +# 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 +# +# * 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 +# * 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 +# * 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 +# +# 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 +# - define CC, LD, AR, AS, ... (overridden by cmdline value) +# - define TOOLCHAIN_CFLAGS variable (overridden by cmdline value) +# - define TOOLCHAIN_LDFLAGS variable (overridden by cmdline value) +# - define TOOLCHAIN_ASFLAGS variable (overridden by cmdline value) # CC = $(CROSS)gcc +KERNELCC = $(CROSS)gcc CPP = $(CROSS)cpp # for now, we don't use as but nasm. # AS = $(CROSS)as @@ -54,7 +52,11 @@ STRIP = $(CROSS)strip READELF = $(CROSS)readelf GCOV = $(CROSS)gcov +ifeq ("$(origin CC)", "command line") +HOSTCC = $(CC) +else HOSTCC = gcc +endif HOSTAS = as TOOLCHAIN_ASFLAGS = @@ -69,18 +71,40 @@ ifeq (,$(findstring -O0,$(EXTRA_CFLAGS))) endif endif -WERROR_FLAGS := -W -Wall -Werror -Wstrict-prototypes -Wmissing-prototypes +WERROR_FLAGS := -W -Wall -Wstrict-prototypes -Wmissing-prototypes WERROR_FLAGS += -Wmissing-declarations -Wold-style-definition -Wpointer-arith WERROR_FLAGS += -Wcast-align -Wnested-externs -Wcast-qual WERROR_FLAGS += -Wformat-nonliteral -Wformat-security - -ifeq ($(CONFIG_RTE_EXEC_ENV),"linuxapp") -# These trigger warnings in newlib, so can't be used for baremetal WERROR_FLAGS += -Wundef -Wwrite-strings + +ifeq ($(RTE_DEVEL_BUILD),y) +WERROR_FLAGS += -Werror +endif + +# There are many issues reported for strict alignment architectures +# which are not necessarily fatal. Report as warnings. +ifeq ($(CONFIG_RTE_ARCH_STRICT_ALIGN),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 $(GCC_VERSION) -lt 47 && echo 1), 1) +WERROR_FLAGS += -Wno-uninitialized +endif + +ifeq ($(shell test $(GCC_VERSION) -gt 70 && echo 1), 1) +# Tell GCC only to error for switch fallthroughs without a suitable comment +WERROR_FLAGS += -Wimplicit-fallthrough=2 +# Ignore errors for snprintf truncation +WERROR_FLAGS += -Wno-format-truncation +endif + export CC AS AR LD OBJCOPY OBJDUMP STRIP READELF export TOOLCHAIN_CFLAGS TOOLCHAIN_LDFLAGS TOOLCHAIN_ASFLAGS