Makefile
author tschatzl
Mon, 21 Jul 2014 10:00:31 +0200
changeset 25730 7eb4e685f739
parent 22031 ae288cbb4c28
child 25854 98ce0879ab4c
permissions -rw-r--r--
8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
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#
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# Copyright (c) 2012, 2013, 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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# This must be the first rule
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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. Recursively called makefiles will not be
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# affected, however. This is required for correct dependency management.
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.NOTPARALLEL:
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# The shell code below will be executed on /usr/ccs/bin/make on Solaris, but not in GNU make.
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# /usr/ccs/bin/make lacks basically every other flow control mechanism.
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TEST_FOR_NON_GNUMAKE:sh=echo You are not using GNU make/gmake, this is a requirement. Check your path. 1>&2 && exit 1
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# Assume we have GNU make, but check version.
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ifeq ($(strip $(foreach v, 3.81% 3.82% 4.%, $(filter $v, $(MAKE_VERSION)))), )
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  $(error This version of GNU Make is too low ($(MAKE_VERSION)). Check your path, or upgrade to 3.81 or newer.)
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endif
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# Locate this Makefile
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ifeq ($(filter /%,$(lastword $(MAKEFILE_LIST))),)
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  makefile_path:=$(CURDIR)/$(lastword $(MAKEFILE_LIST))
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else
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  makefile_path:=$(lastword $(MAKEFILE_LIST))
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endif
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root_dir:=$(dir $(makefile_path))
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# ... and then we can include our helper functions
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include $(root_dir)/make/MakeHelpers.gmk
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$(eval $(call ParseLogLevel))
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$(eval $(call ParseConfAndSpec))
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# Now determine if we have zero, one or several configurations to build.
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ifeq ($(SPEC),)
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  # Since we got past ParseConfAndSpec, we must be building a global target. Do nothing.
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else
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  ifeq ($(words $(SPEC)),1)
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    # We are building a single configuration. This is the normal case. Execute the Main.gmk file.
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    include $(root_dir)/make/Main.gmk
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  else
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    # We are building multiple configurations.
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    # First, find out the valid targets
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    # Run the makefile with an arbitrary SPEC using -p -q (quiet dry-run and dump rules) to find
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    # available PHONY targets. Use this list as valid targets to pass on to the repeated calls.
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    all_phony_targets=$(filter-out $(global_targets), $(strip $(shell \
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        cd $(root_dir) && $(MAKE) -p -q FRC SPEC=$(firstword $(SPEC)) | \
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        grep ^.PHONY: | head -n 1 | cut -d " " -f 2-)))
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    $(all_phony_targets):
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	@$(foreach spec,$(SPEC),(cd $(root_dir) && $(MAKE) SPEC=$(spec) \
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	    $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $@) &&) true
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    .PHONY: $(all_phony_targets)
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  endif
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endif
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# Here are "global" targets, i.e. targets that can be executed without specifying a single configuration.
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# If you addd more global targets, please update the variable global_targets in MakeHelpers.
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help:
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	$(info )
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	$(info OpenJDK Makefile help)
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	$(info =====================)
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	$(info )
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	$(info Common make targets)
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	$(info .  make [default]         # Compile all product in langtools, hotspot, jaxp, jaxws,)
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	$(info .                         # corba and jdk)
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	$(info .  make all               # Compile everything, all repos and images)
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	$(info .  make images            # Create complete j2sdk and j2re images)
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	$(info .  make docs              # Create javadocs)
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	$(info .  make overlay-images    # Create limited images for sparc 64 bit platforms)
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	$(info .  make profiles          # Create complete j2re compact profile images)
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	$(info .  make bootcycle-images  # Build images twice, second time with newly build JDK)
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	$(info .  make install           # Install the generated images locally)
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	$(info .  make clean             # Remove all files generated by make, but not those)
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	$(info .                         # generated by configure)
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	$(info .  make dist-clean        # Remove all files, including configuration)
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	$(info .  make help              # Give some help on using make)
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	$(info .  make test              # Run tests, default is all tests (see TEST below))
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	$(info )
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	$(info Targets for specific components)
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	$(info (Component is any of langtools, corba, jaxp, jaxws, hotspot, jdk, nashorn, images, overlay-images, docs or test))
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	$(info .  make <component>       # Build <component> and everything it depends on. )
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	$(info .  make <component>-only  # Build <component> only, without dependencies. This)
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	$(info .                         # is faster but can result in incorrect build results!)
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	$(info .  make clean-<component> # Remove files generated by make for <component>)
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	$(info )
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	$(info Useful make variables)
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	$(info .  make CONF=             # Build all configurations (note, assignment is empty))
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	$(info .  make CONF=<substring>  # Build the configuration(s) with a name matching)
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	$(info .                         # <substring>)
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	$(info )
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	$(info .  make LOG=<loglevel>    # Change the log level from warn to <loglevel>)
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	$(info .                         # Available log levels are:)
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	$(info .                         # 'warn' (default), 'info', 'debug' and 'trace')
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	$(info .                         # To see executed command lines, use LOG=debug)
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	$(info )
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	$(info .  make JOBS=<n>          # Run <n> parallel make jobs)
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	$(info .                         # Note that -jN does not work as expected!)
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	$(info )
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	$(info .  make test TEST=<test>  # Only run the given test or tests, e.g.)
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	$(info .                         # make test TEST="jdk_lang jdk_net")
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	$(info )
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.PHONY: help