225 lines
9.0 KiB
Plaintext
225 lines
9.0 KiB
Plaintext
#
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# Copyright (c) 2012, 2025, Oracle and/or its affiliates. All rights reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation. Oracle designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Oracle in the LICENSE file that accompanied this code.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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# questions.
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#
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################################################################################
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# This file is the earliest part of the build bootstrap process (not counting
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# Makefile that includes it). Its main responsibility is to figure out what
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# configuration to use and pick up the corresponding SPEC file. It will then
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# call Init.gmk with this SPEC for further bootstrapping.
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################################################################################
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# This must be the first rule
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default:
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.PHONY: default
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# Inclusion of this pseudo-target will cause make to execute this file
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# serially, regardless of -j.
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.NOTPARALLEL:
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IS_PREINIT_ENV := true
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# Include our helper functions.
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include $(TOPDIR)/make/PreInitSupport.gmk
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include $(TOPDIR)/make/common/LogUtils.gmk
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# Here are "global" targets, i.e. targets that can be executed without having
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# a configuration. This will define ALL_GLOBAL_TARGETS.
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include $(TOPDIR)/make/Global.gmk
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# Targets provided by Init.gmk.
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ALL_INIT_TARGETS := print-modules print-targets print-configuration \
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print-tests reconfigure pre-compare-build post-compare-build \
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create-make-helpers
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# CALLED_TARGETS is the list of targets that the user provided,
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# or "default" if unspecified.
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CALLED_TARGETS := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), default)
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# Extract non-global targets that require a spec file.
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CALLED_SPEC_TARGETS := $(filter-out $(ALL_GLOBAL_TARGETS), $(CALLED_TARGETS))
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# If we have only global targets, or if we are called with -qp (assuming an
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# external part, e.g. bash completion, is trying to understand our targets),
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# we will skip SPEC location and the sanity checks.
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ifeq ($(CALLED_SPEC_TARGETS), )
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SKIP_SPEC := true
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endif
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ifeq ($(findstring p, $(MAKEFLAGS))$(findstring q, $(MAKEFLAGS)), pq)
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SKIP_SPEC := true
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endif
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ifneq ($(SKIP_SPEC), true)
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############################################################################
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# This is the common case: we have been called from the command line by the
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# user with a target that should be delegated to Main.gmk, so we need to
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# figure out a proper SPEC and call Init.gmk with it.
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############################################################################
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# Basic checks on environment and command line.
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$(eval $(call CheckControlVariables))
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$(eval $(call CheckInvalidMakeFlags))
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# Check that CONF_CHECK is valid.
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$(eval $(call ParseConfCheckOption))
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# Check that the LOG given is valid, and set LOG_LEVEL, LOG_NOFILE,
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# MAKE_LOG_VARS and MAKE_LOG_FLAGS.
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$(eval $(call ParseLogLevel))
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# After this SPECS contain 1..N spec files (otherwise ParseConfAndSpec fails).
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$(eval $(call ParseConfAndSpec))
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# Extract main targets from Main.gmk using the spec(s) provided. In theory,
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# with multiple specs, we should find the intersection of targets provided
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# by all specs, but we approximate this by an arbitrary spec from the list.
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# This will setup ALL_MAIN_TARGETS.
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$(eval $(call DefineMainTargets, FORCE, $(firstword $(SPECS))))
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# Separate called targets depending on type.
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INIT_TARGETS := $(filter $(ALL_INIT_TARGETS), $(CALLED_SPEC_TARGETS))
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MAIN_TARGETS := $(filter $(ALL_MAIN_TARGETS), $(CALLED_SPEC_TARGETS))
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SEQUENTIAL_TARGETS := $(filter dist-clean clean%, $(MAIN_TARGETS))
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PARALLEL_TARGETS := $(filter-out $(SEQUENTIAL_TARGETS), $(MAIN_TARGETS))
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MAKE_INIT_ARGS := $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -I $(TOPDIR)/make/common
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# The spec files depend on the autoconf source code. This check makes sure
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# the configuration is up to date after changes to configure.
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$(SPECS): $(wildcard $(TOPDIR)/make/autoconf/*) \
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$(if $(CUSTOM_CONFIG_DIR), $(wildcard $(CUSTOM_CONFIG_DIR)/*)) \
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$(addprefix $(TOPDIR)/make/conf/, version-numbers.conf branding.conf) \
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$(if $(CUSTOM_CONF_DIR), $(wildcard $(addprefix $(CUSTOM_CONF_DIR)/, \
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version-numbers.conf branding.conf)))
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ifeq ($(CONF_CHECK), fail)
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@echo Error: The configuration is not up to date for \
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"'$(lastword $(subst /, , $(dir $@)))'."
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$(call PrintConfCheckFailed)
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@exit 2
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else ifeq ($(CONF_CHECK), auto)
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@echo Note: The configuration is not up to date for \
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"'$(lastword $(subst /, , $(dir $@)))'."
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@( cd $(TOPDIR) && \
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$(MAKE) $(MAKE_INIT_ARGS) -f $(TOPDIR)/make/Init.gmk SPEC=$@ \
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reconfigure )
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else ifeq ($(CONF_CHECK), ignore)
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# Do nothing
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endif
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# Do not let make delete spec files even if aborted while doing a reconfigure
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.PRECIOUS: $(SPECS)
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# Unless reconfigure is explicitly called, let all main targets depend on
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# the spec files to be up to date.
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ifeq ($(findstring reconfigure, $(INIT_TARGETS)), )
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$(MAIN_TARGETS): $(SPECS)
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endif
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make-info:
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ifneq ($(findstring $(LOG_LEVEL), info debug trace), )
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$(info Running make as '$(strip $(MAKE) $(MFLAGS) \
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$(COMMAND_LINE_VARIABLES) $(MAKECMDGOALS))')
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endif
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MAKE_INIT_MAIN_TARGET_ARGS := \
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USER_MAKE_VARS="$(USER_MAKE_VARS)" MAKE_LOG_FLAGS=$(MAKE_LOG_FLAGS) \
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$(MAKE_LOG_VARS) \
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INIT_TARGETS="$(INIT_TARGETS)" \
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SEQUENTIAL_TARGETS="$(SEQUENTIAL_TARGETS)" \
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PARALLEL_TARGETS="$(PARALLEL_TARGETS)"
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# Now the init and main targets will be called, once for each SPEC. The
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# recipe will be run once for every target specified, but we only want to
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# execute the recipe a single time, hence the TARGET_DONE with a dummy
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# command if true.
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# The COMPARE_BUILD part implements special support for makefile development.
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$(ALL_INIT_TARGETS) $(ALL_MAIN_TARGETS): make-info
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@$(if $(TARGET_DONE), \
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true \
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, \
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( cd $(TOPDIR) && \
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$(foreach spec, $(SPECS), \
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$(MAKE) $(MAKE_INIT_ARGS) -j 1 -f $(TOPDIR)/make/Init.gmk \
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SPEC=$(spec) TOPDIR_ALT=$(TOPDIR) \
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$(MAKE_INIT_MAIN_TARGET_ARGS) main && \
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$(if $(and $(COMPARE_BUILD), $(PARALLEL_TARGETS)), \
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$(MAKE) $(MAKE_INIT_ARGS) -f $(TOPDIR)/make/Init.gmk \
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SPEC=$(spec) TOPDIR_ALT=$(TOPDIR) \
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COMPARE_BUILD="$(COMPARE_BUILD)" \
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pre-compare-build && \
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$(MAKE) $(MAKE_INIT_ARGS) -j 1 -f $(TOPDIR)/make/Init.gmk \
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SPEC=$(spec) TOPDIR_ALT=$(TOPDIR) \
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COMPARE_BUILD="$(COMPARE_BUILD):NODRYRUN=true" \
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$(MAKE_INIT_MAIN_TARGET_ARGS) main && \
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$(MAKE) $(MAKE_INIT_ARGS) -f $(TOPDIR)/make/Init.gmk \
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SPEC=$(spec) TOPDIR_ALT=$(TOPDIR) \
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COMPARE_BUILD="$(COMPARE_BUILD):NODRYRUN=true" \
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post-compare-build && \
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) \
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) true ) \
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$(eval TARGET_DONE=true) \
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)
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.PHONY: $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS)
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else # SKIP_SPEC=true
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############################################################################
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# We have only global targets, or are called with -pq (from command
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# completion). In this case we might not even have a configuration at all, but
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# still need to handle the situation gracefully even if there is no SPEC file.
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############################################################################
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ifeq ($(wildcard $(SPEC)), )
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# If we have no SPEC provided, we will just make a "best effort" target list.
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# First try to grab any available pre-existing main-targets.gmk.
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main_targets_file := $(firstword $(wildcard $(build_dir)/*/make-support/main-targets.gmk))
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ifneq ($(main_targets_file), )
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# Extract the SPEC that corresponds to this main-targets.gmk file.
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SPEC := $(patsubst %/make-support/main-targets.gmk, %/spec.gmk, $(main_targets_file))
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else
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# None found, pick an arbitrary SPEC for which to generate a file
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SPEC := $(firstword $(all_spec_files))
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endif
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endif
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ifneq ($(wildcard $(SPEC)), )
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$(eval $(call DefineMainTargets, LAZY, $(SPEC)))
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else
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# If we have no configurations we can not provide any main targets.
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ALL_MAIN_TARGETS :=
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endif
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ALL_TARGETS := $(sort $(ALL_GLOBAL_TARGETS) $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS))
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# Just list all our targets.
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$(ALL_TARGETS):
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.PHONY: $(ALL_TARGETS)
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endif # $(SKIP_SPEC)!=true
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################################################################################
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