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