feb9f680cd
Before this patch, the management of dependencies between directories had several issues: - the generation of .depdirs, done at configuration is slow: it can take more than one minute on some slow targets (usually ~10s on a standard PC without -j). - for instance, it is possible to express a dependency like: - app/foo depends on lib/librte_foo - and lib/librte_foo depends on app/bar But this won't work because the directories are traversed with a depth-first algorithm, so we have to choose between doing 'app' before or after 'lib'. - the script depdirs-rule.sh is too complex. - we cannot use "make -d" for debug, because the output of make is used for the generation of .depdirs. This patch moves the DEPDIRS-* variables in the upper Makefile, making the dependencies much easier to calculate. A DEPDIRS variable is still used to process library dependencies in LDLIBS. After this commit, "make config" is almost immediate. Signed-off-by: Olivier Matz <olivier.matz@6wind.com> Tested-by: Robin Jarry <robin.jarry@6wind.com> Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
126 lines
3.7 KiB
Makefile
126 lines
3.7 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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MAKEFLAGS += --no-print-directory
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# define Q to '@' or not. $(Q) is used to prefix all shell commands to
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# be executed silently.
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Q=@
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ifeq '$V' '0'
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override V=
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endif
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ifdef V
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ifeq ("$(origin V)", "command line")
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Q=
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endif
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endif
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export Q
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ifeq ($(RTE_SDK),)
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$(error RTE_SDK is not defined)
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endif
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RTE_SRCDIR = $(CURDIR)
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export RTE_SRCDIR
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BUILDING_RTE_SDK := 1
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export BUILDING_RTE_SDK
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#
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# We can specify the configuration template when doing the "make
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# config". For instance: make config T=x86_64-native-linuxapp-gcc
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#
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RTE_CONFIG_TEMPLATE :=
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ifdef T
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ifeq ("$(origin T)", "command line")
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RTE_CONFIG_TEMPLATE := $(RTE_SRCDIR)/config/defconfig_$(T)
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endif
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endif
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export RTE_CONFIG_TEMPLATE
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#
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# Default output is $(RTE_SRCDIR)/build
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# output files wil go in a separate directory
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#
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ifdef O
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ifeq ("$(origin O)", "command line")
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RTE_OUTPUT := $(abspath $(O))
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endif
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endif
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RTE_OUTPUT ?= $(RTE_SRCDIR)/build
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export RTE_OUTPUT
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# the directory where intermediate build files are stored, like *.o,
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# *.d, *.cmd, ...
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BUILDDIR = $(RTE_OUTPUT)/build
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export BUILDDIR
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export ROOTDIRS-y ROOTDIRS- ROOTDIRS-n
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.PHONY: default
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default: all
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.PHONY: config showconfigs showversion showversionum
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config showconfigs showversion showversionum:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkconfig.mk $@
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.PHONY: test test-basic test-fast test-ring test-mempool test-perf coverage
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test test-basic test-fast test-ring test-mempool test-perf coverage:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdktest.mk $@
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test: test-build
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.PHONY: install
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install:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkinstall.mk pre_install
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkinstall.mk $@
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install-%:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkinstall.mk $@
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.PHONY: doc help
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doc: doc-all
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help: doc-help
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doc-%:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkdoc.mk $*
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.PHONY: gcov gcovclean
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gcov gcovclean:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkgcov.mk $@
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.PHONY: examples examples_clean
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examples examples_clean:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkexamples.mk $@
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# all other build targets
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%:
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkconfig.mk checkconfig
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkbuild.mk $@
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