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>
145 lines
5.4 KiB
Makefile
145 lines
5.4 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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.PHONY: showversion
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showversion:
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@set -- \
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$$(sed -rne 's,^#define RTE_VER_[A-Z_]*[[:space:]]+([0-9]+).*,\1,p' \
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-e 's,^#define RTE_VER_SUFFIX[[:space:]]+"(.*)",\1,p' \
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$(RTE_SRCDIR)/lib/librte_eal/common/include/rte_version.h) ;\
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printf '%d.%02d.%d' "$$1" "$$2" "$$3"; \
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if [ -z "$$5" ]; then echo; \
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else printf '%s' "$$4"; \
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if [ $$5 -lt 16 ] ; then echo $$5; \
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else echo $$(($$5 - 16)); fi; \
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fi
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.PHONY: showversionum
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showversionum:
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@set -- \
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$$(sed -rne 's,^#define RTE_VER_[A-Z_]*[[:space:]]+([0-9]+).*,\1,p' \
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$(RTE_SRCDIR)/lib/librte_eal/common/include/rte_version.h); \
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printf '%02d%02d\n' "$$1" "$$2"
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INSTALL_CONFIGS := $(sort $(filter-out %~,\
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$(patsubst $(RTE_SRCDIR)/config/defconfig_%,%,\
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$(wildcard $(RTE_SRCDIR)/config/defconfig_*))))
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INSTALL_TARGETS := $(addsuffix _install,$(INSTALL_CONFIGS))
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.PHONY: showconfigs
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showconfigs:
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@$(foreach CONFIG, $(INSTALL_CONFIGS), echo $(CONFIG);)
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.PHONY: notemplate
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notemplate:
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@printf "No template specified. "
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@echo "Use T=template among the following list:"
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@$(MAKE) -rR showconfigs | sed 's,^, ,'
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.PHONY: config
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ifeq ($(RTE_CONFIG_TEMPLATE),)
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config: notemplate
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else
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config: $(RTE_OUTPUT)/include/rte_config.h $(RTE_OUTPUT)/Makefile
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@echo "Configuration done"
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endif
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$(RTE_OUTPUT):
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$(Q)mkdir -p $@
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ifdef NODOTCONF
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$(RTE_OUTPUT)/.config: ;
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else
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# Generate config from template, if there are duplicates keep only the last.
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# To do so the temp config is checked for duplicate keys with cut/sort/uniq
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# Then for each of those identified duplicates as long as there are more than
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# just one left the last match is removed.
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$(RTE_OUTPUT)/.config: $(RTE_CONFIG_TEMPLATE) FORCE | $(RTE_OUTPUT)
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$(Q)if [ "$(RTE_CONFIG_TEMPLATE)" != "" -a -f "$(RTE_CONFIG_TEMPLATE)" ]; then \
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$(CPP) -undef -P -x assembler-with-cpp \
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-ffreestanding \
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-o $(RTE_OUTPUT)/.config_tmp $(RTE_CONFIG_TEMPLATE) ; \
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config=$$(cat $(RTE_OUTPUT)/.config_tmp) ; \
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echo "$$config" | awk -F '=' 'BEGIN {i=1} \
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/^#/ {pos[i++]=$$0} \
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!/^#/ {if (!s[$$1]) {pos[i]=$$0; s[$$1]=i++} \
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else {pos[s[$$1]]=$$0}} END \
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{for (j=1; j<i; j++) print pos[j]}' \
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> $(RTE_OUTPUT)/.config_tmp ; \
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if ! cmp -s $(RTE_OUTPUT)/.config_tmp $(RTE_OUTPUT)/.config; then \
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cp $(RTE_OUTPUT)/.config_tmp $(RTE_OUTPUT)/.config ; \
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cp $(RTE_OUTPUT)/.config_tmp $(RTE_OUTPUT)/.config.orig ; \
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fi ; \
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rm -f $(RTE_OUTPUT)/.config_tmp ; \
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else \
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$(MAKE) -rRf $(RTE_SDK)/mk/rte.sdkconfig.mk notemplate; \
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fi
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endif
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# generate a Makefile for this build directory
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# use a relative path so it will continue to work even if we move the directory
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SDK_RELPATH=$(shell $(RTE_SDK)/buildtools/relpath.sh $(abspath $(RTE_SRCDIR)) \
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$(abspath $(RTE_OUTPUT)))
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OUTPUT_RELPATH=$(shell $(RTE_SDK)/buildtools/relpath.sh $(abspath $(RTE_OUTPUT)) \
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$(abspath $(RTE_SRCDIR)))
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$(RTE_OUTPUT)/Makefile: | $(RTE_OUTPUT)
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$(Q)$(RTE_SDK)/buildtools/gen-build-mk.sh $(SDK_RELPATH) $(OUTPUT_RELPATH) \
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> $(RTE_OUTPUT)/Makefile
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# clean installed files, and generate a new config header file
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# if NODOTCONF variable is defined, don't try to rebuild .config
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$(RTE_OUTPUT)/include/rte_config.h: $(RTE_OUTPUT)/.config
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$(Q)rm -rf $(RTE_OUTPUT)/include $(RTE_OUTPUT)/app \
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$(RTE_OUTPUT)/lib \
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$(RTE_OUTPUT)/hostlib $(RTE_OUTPUT)/kmod $(RTE_OUTPUT)/build
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$(Q)mkdir -p $(RTE_OUTPUT)/include
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$(Q)$(RTE_SDK)/buildtools/gen-config-h.sh $(RTE_OUTPUT)/.config \
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> $(RTE_OUTPUT)/include/rte_config.h
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# generate the rte_config.h
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.PHONY: headerconfig
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headerconfig: $(RTE_OUTPUT)/include/rte_config.h
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@true
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# check that .config is present, and if yes, check that rte_config.h
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# is up to date
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.PHONY: checkconfig
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checkconfig:
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@if [ ! -f $(RTE_OUTPUT)/.config ]; then \
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echo "No .config in build directory"; \
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exit 1; \
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fi
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$(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkconfig.mk \
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headerconfig NODOTCONF=1
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.PHONY: FORCE
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FORCE:
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