diff options
Diffstat (limited to 'src/spdk/dpdk/mk/toolchain/gcc/rte.vars.mk')
-rw-r--r-- | src/spdk/dpdk/mk/toolchain/gcc/rte.vars.mk | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/spdk/dpdk/mk/toolchain/gcc/rte.vars.mk b/src/spdk/dpdk/mk/toolchain/gcc/rte.vars.mk new file mode 100644 index 000000000..928f0e083 --- /dev/null +++ b/src/spdk/dpdk/mk/toolchain/gcc/rte.vars.mk @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +# +# toolchain: +# +# - 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 +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))) + $(warning "EXTRA_CFLAGS doesn't contains -O0, coverage will be inaccurate with optimizations enabled") +endif +endif + +WERROR_FLAGS := -W -Wall -Wstrict-prototypes -Wmissing-prototypes +WERROR_FLAGS += -Wmissing-declarations -Wold-style-definition -Wpointer-arith +WERROR_FLAGS += -Wcast-align -Wnested-externs -Wcast-qual +WERROR_FLAGS += -Wformat-nonliteral -Wformat-security +WERROR_FLAGS += -Wundef -Wwrite-strings -Wdeprecated + +ifeq ($(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 + +ifeq ($(CONFIG_RTE_ENABLE_LTO),y) +# 'fat-lto' is used since pmdinfogen needs to have 'this_pmd_nameX' +# exported in symbol table and without this option only internal +# representation is present. +TOOLCHAIN_CFLAGS += -flto -ffat-lto-objects +TOOLCHAIN_LDFLAGS += -flto +# workaround for GCC bug 81440 +ifeq ($(shell test $(GCC_VERSION) -lt 80 && echo 1), 1) +WERROR_FLAGS += -Wno-lto-type-mismatch +endif +endif + +# disable warning for non-initialised fields +WERROR_FLAGS += -Wno-missing-field-initializers +# workaround GCC bug with warning "may be used uninitialized" +ifeq ($(shell test $(GCC_VERSION) -lt 47 && echo 1), 1) +WERROR_FLAGS += -Wno-uninitialized +endif + +ifeq ($(shell test $(GCC_VERSION) -ge 100 && echo 1), 1) +# FIXME: Bugzilla 396 +WERROR_FLAGS += -Wno-zero-length-bounds +endif + +HOST_WERROR_FLAGS := $(WERROR_FLAGS) + +ifeq ($(shell test $(HOST_GCC_VERSION) -gt 70 && echo 1), 1) +# Tell GCC only to error for switch fallthroughs without a suitable comment +HOST_WERROR_FLAGS += -Wimplicit-fallthrough=2 +# Ignore errors for snprintf truncation +HOST_WERROR_FLAGS += -Wno-format-truncation +endif + +ifeq ($(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 + +# disable packed member unalign warnings +WERROR_FLAGS += -Wno-address-of-packed-member + +export CC AS AR LD OBJCOPY OBJDUMP STRIP READELF +export TOOLCHAIN_CFLAGS TOOLCHAIN_LDFLAGS TOOLCHAIN_ASFLAGS |