b2bb3a5daa
Add RTE_DEVEL_BUILD make-variable which can be used to do things differently when doing development vs building a release, autodetected from source root .git presence and overridable via commandline. It is used it to enable -Werror compiler flag and may be extended to other checks. Failing build on warnings is a useful developer tool but its bad for release tarballs which can and do get built with newer compilers than what was used/available during development. Compilers routinely add new warnings so code which built silently with cc X might no longer do so with X+1. This doesn't make the existing code any more buggier and failing the build in this case does not help to improve the quality of an already released version either. This change the default flags which can be tuned with EXTRA_CFLAGS. Signed-off-by: Panu Matilainen <pmatilai@redhat.com> Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
128 lines
4.1 KiB
Makefile
128 lines
4.1 KiB
Makefile
# BSD LICENSE
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#
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# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# To be included at the beginning of all RTE user Makefiles. This
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# .mk will define the RTE environment variables by including the
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# config file of SDK. It also includes the config file from external
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# application if any.
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#
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ifeq ($(RTE_SDK),)
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$(error RTE_SDK is not defined)
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endif
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ifeq ($(wildcard $(RTE_SDK)),)
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$(error RTE_SDK variable points to an invalid location)
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endif
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# define Q to '@' or not. $(Q) is used to prefix all shell commands to
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# be executed silently.
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Q=@
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ifdef V
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ifeq ("$(origin V)", "command line")
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Q=
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endif
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endif
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export Q
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# if we are building SDK, only includes SDK configuration
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ifneq ($(BUILDING_RTE_SDK),)
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include $(RTE_OUTPUT)/.config
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# remove double-quotes from config names
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RTE_ARCH := $(CONFIG_RTE_ARCH:"%"=%)
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RTE_MACHINE := $(CONFIG_RTE_MACHINE:"%"=%)
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RTE_EXEC_ENV := $(CONFIG_RTE_EXEC_ENV:"%"=%)
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RTE_TOOLCHAIN := $(CONFIG_RTE_TOOLCHAIN:"%"=%)
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RTE_SDK_BIN := $(RTE_OUTPUT)
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endif
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RTE_TARGET ?= $(RTE_ARCH)-$(RTE_MACHINE)-$(RTE_EXEC_ENV)-$(RTE_TOOLCHAIN)
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ifeq ($(BUILDING_RTE_SDK),)
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# if we are building an external app/lib, include internal/rte.extvars.mk that will
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# define RTE_OUTPUT, RTE_SRCDIR, RTE_EXTMK, RTE_SDK_BIN, (etc ...)
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include $(RTE_SDK)/mk/internal/rte.extvars.mk
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endif
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CONFIG_RTE_LIBRTE_E1000_PMD = $(CONFIG_RTE_LIBRTE_IGB_PMD)
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ifneq ($(CONFIG_RTE_LIBRTE_E1000_PMD),y)
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CONFIG_RTE_LIBRTE_E1000_PMD = $(CONFIG_RTE_LIBRTE_EM_PMD)
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endif
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ifeq ($(RTE_ARCH),)
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$(error RTE_ARCH is not defined)
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endif
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ifeq ($(RTE_MACHINE),)
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$(error RTE_MACHINE is not defined)
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endif
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ifeq ($(RTE_EXEC_ENV),)
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$(error RTE_EXEC_ENV is not defined)
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endif
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ifeq ($(RTE_TOOLCHAIN),)
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$(error RTE_TOOLCHAIN is not defined)
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endif
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# can be overriden by make command line or exported environment variable
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RTE_KERNELDIR ?= /lib/modules/$(shell uname -r)/build
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export RTE_TARGET
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export RTE_ARCH
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export RTE_MACHINE
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export RTE_EXEC_ENV
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export RTE_TOOLCHAIN
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# developer build automatically enabled in a git tree
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ifneq ($(wildcard $(RTE_SDK)/.git),)
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RTE_DEVEL_BUILD := y
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endif
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# SRCDIR is the current source directory
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ifdef S
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SRCDIR := $(abspath $(RTE_SRCDIR)/$(S))
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else
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SRCDIR := $(RTE_SRCDIR)
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endif
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# helper: return y if option is set to y, else return an empty string
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testopt = $(if $(strip $(subst y,,$(1)) $(subst $(1),,y)),,y)
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# helper: return an empty string if option is set, else return y
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not = $(if $(strip $(subst y,,$(1)) $(subst $(1),,y)),,y)
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ifneq ($(wildcard $(RTE_SDK)/mk/target/$(RTE_TARGET)/rte.vars.mk),)
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include $(RTE_SDK)/mk/target/$(RTE_TARGET)/rte.vars.mk
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else
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include $(RTE_SDK)/mk/target/generic/rte.vars.mk
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endif
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