Makefile
changeset 29662 78c47f0002c3
parent 28902 0c09b47449c8
child 41040 7b919a4497ff
--- a/Makefile	Mon Mar 23 11:44:40 2015 -0700
+++ b/Makefile	Thu Mar 26 16:17:30 2015 +0100
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -23,200 +23,42 @@
 # questions.
 #
 
-# This must be the first rule
-default:
+###
+### This file is just a very small wrapper needed to run the real make/Init.gmk.
+### It also performs some sanity checks on make.
+###
 
-# Inclusion of this pseudo-target will cause make to execute this file
-# serially, regardless of -j. Recursively called makefiles will not be
-# affected, however. 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
 
-# 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
+# The .FEATURES variable is likely to be unique for GNU Make.
+ifeq ($(.FEATURES), )
+  $(info Error: '$(MAKE)' does not seem to be GNU Make, which is a requirement.)
+  $(info Check your path, or upgrade to GNU Make 3.81 or newer.)
+  $(error Cannot continue)
+endif
 
-# Assume we have GNU make, but check version.
+# 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.)
+  $(info Error: This version of GNU Make is too low ($(MAKE_VERSION)).)
+  $(info Check your path, or upgrade to GNU Make 3.81 or newer.)
+  $(error Cannot continue)
+endif
+
+# In Cygwin, the MAKE variable gets prepended with the current directory if the
+# make executable is called using a Windows mixed path (c:/cygwin/bin/make.exe).
+ifneq ($(findstring :, $(MAKE)), )
+  MAKE := $(patsubst $(CURDIR)%, %, $(patsubst $(CURDIR)/%, %, $(MAKE)))
 endif
 
 # Locate this Makefile
-ifeq ($(filter /%,$(lastword $(MAKEFILE_LIST))),)
-  makefile_path:=$(CURDIR)/$(lastword $(MAKEFILE_LIST))
+ifeq ($(filter /%, $(lastword $(MAKEFILE_LIST))),)
+  makefile_path := $(CURDIR)/$(strip $(lastword $(MAKEFILE_LIST)))
 else
-  makefile_path:=$(lastword $(MAKEFILE_LIST))
-endif
-root_dir:=$(patsubst %/,%,$(dir $(makefile_path)))
-
-ifeq ($(MAIN_TARGETS), )
-  COMMAND_LINE_VARIABLES:=$(subst =command,,$(filter %=command,$(foreach var,$(.VARIABLES),$(var)=$(firstword $(origin $(var))))))
-  MAKE_CONTROL_VARIABLES:=LOG CONF SPEC JOBS TEST IGNORE_OLD_CONFIG
-  UNKNOWN_COMMAND_LINE_VARIABLES:=$(strip $(filter-out $(MAKE_CONTROL_VARIABLES), $(COMMAND_LINE_VARIABLES)))
-  ifneq ($(UNKNOWN_COMMAND_LINE_VARIABLES), )
-    $(info Note: Command line contains non-control variables: $(UNKNOWN_COMMAND_LINE_VARIABLES).)
-    $(info Make sure it is not mistyped, and that you intend to override this variable.)
-    $(info 'make help' will list known control variables)
-  endif
-endif
-
-ifneq ($(findstring qp,$(MAKEFLAGS)),)
-  # When called with -qp, assume an external part (e.g. bash completion) is trying
-  # to understand our targets.
-  # Duplication of global targets, needed before ParseConfAndSpec in case we have
-  # no configurations.
-  help:
-  # If both CONF and SPEC are unset, look for all available configurations by
-  # setting CONF to the empty string.
-  ifeq ($(SPEC), )
-    CONF?=
-  endif
+  makefile_path := $(lastword $(MAKEFILE_LIST))
 endif
-
-# ... and then we can include our helper functions
-include $(root_dir)/make/MakeHelpers.gmk
-
-$(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
-  # In Cygwin, the MAKE variable gets messed up if the make executable is called with
-  # a Windows mixed path (c:/cygwin/bin/make.exe). If that's the case, fix it by removing
-  # the prepended root_dir.
-  ifneq ($(findstring :, $(MAKE)), )
-    MAKE := $(patsubst $(root_dir)%, %, $(MAKE))
-  endif
-
-  # We are potentially 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 := $(sort $(filter-out $(global_targets), $(strip $(shell \
-      cd $(root_dir)/make && $(MAKE) -f Main.gmk -p -q FRC SPEC=$(firstword $(SPEC)) \
-      -I $(root_dir)/make/common | grep "^.PHONY:" | head -n 1 | cut -d " " -f 2-))))
-
-  # Loop through the configurations and call the main-wrapper for each one. The wrapper
-  # target will execute with a single configuration loaded.
-  $(all_phony_targets):
-	@$(if $(TARGET_RUN),,\
-          $(foreach spec,$(SPEC),\
-            (cd $(root_dir) && $(MAKE) SPEC=$(spec) MAIN_TARGETS="$(call GetRealTarget)" \
-	    $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) main-wrapper) &&) true)
-	@echo > /dev/null
-	$(eval TARGET_RUN=true)
-
-  .PHONY: $(all_phony_targets)
-
-  ifneq ($(MAIN_TARGETS), )
-    # The wrapper target was called so we now have a single configuration. Load the spec file
-    # and call the real Main.gmk.
-    include $(SPEC)
-    include $(SRC_ROOT)/make/common/MakeBase.gmk
+topdir := $(strip $(patsubst %/, %, $(dir $(makefile_path))))
 
-    ### Clean up from previous run
-    # Remove any build.log from a previous run, if they exist
-    ifneq (,$(BUILD_LOG))
-      ifneq (,$(BUILD_LOG_PREVIOUS))
-        # Rotate old log
-        $(shell $(RM) $(BUILD_LOG_PREVIOUS) 2> /dev/null)
-        $(shell $(MV) $(BUILD_LOG) $(BUILD_LOG_PREVIOUS) 2> /dev/null)
-      else
-        $(shell $(RM) $(BUILD_LOG) 2> /dev/null)
-      endif
-      $(shell $(RM) $(OUTPUT_ROOT)/build-trace-time.log 2> /dev/null)
-    endif
-    # Remove any javac server logs and port files. This
-    # prevents a new make run to reuse the previous servers.
-    ifneq (,$(SJAVAC_SERVER_DIR))
-      $(shell $(MKDIR) -p $(SJAVAC_SERVER_DIR) && $(RM) -rf $(SJAVAC_SERVER_DIR)/*)
-    endif
-
-    # Split out the targets requiring sequential execution. Run these targets separately
-    # from the rest so that the rest may still enjoy full parallel execution.
-    SEQUENTIAL_TARGETS := $(filter dist-clean clean% reconfigure, $(MAIN_TARGETS))
-    PARALLEL_TARGETS := $(filter-out $(SEQUENTIAL_TARGETS), $(MAIN_TARGETS))
-
-    main-wrapper:
-        ifneq ($(SEQUENTIAL_TARGETS), )
-	  (cd $(SRC_ROOT)/make && $(MAKE) -f Main.gmk SPEC=$(SPEC) -j 1 \
-	      $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $(SEQUENTIAL_TARGETS))
-        endif
-        ifneq ($(PARALLEL_TARGETS), )
-	  @$(call AtMakeStart)
-	  (cd $(SRC_ROOT)/make && $(BUILD_LOG_WRAPPER) $(MAKE) -f Main.gmk SPEC=$(SPEC) -j $(JOBS) \
-	      $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $(PARALLEL_TARGETS) \
-	      $(if $(filter true, $(OUTPUT_SYNC_SUPPORTED)), -O$(OUTPUT_SYNC)))
-	  @$(call AtMakeEnd)
-        endif
-
-     .PHONY: main-wrapper
-
-   endif
-endif
-
-# Here are "global" targets, i.e. targets that can be executed without specifying a single configuration.
-# If you add more global targets, please update the variable global_targets in MakeHelpers.
-
-# Helper macro to allow $(info) to properly print strings beginning with spaces.
-_:=
-
-help:
-	$(info )
-	$(info OpenJDK Makefile help)
-	$(info =====================)
-	$(info )
-	$(info Common make targets)
-	$(info $(_) make [default]         # Compile all modules in langtools, hotspot, jdk, jaxws,)
-	$(info $(_)                        # jaxp and corba, and create a runnable "exploded" image)
-	$(info $(_) make all               # Compile everything, all repos, docs and images)
-	$(info $(_) make images            # Create complete j2sdk and j2re images)
-	$(info $(_) make <phase>           # Build the specified phase and everything it depends on)
-	$(info $(_)                        # (gensrc, java, copy, libs, launchers, gendata, rmic))
-	$(info $(_) make *-only            # Applies to most targets and disables compling the)
-	$(info $(_)                        # dependencies for the target. This is faster but may)
-	$(info $(_)                        # result in incorrect build results!)
-	$(info $(_) make docs              # Create all docs)
-	$(info $(_) make docs-javadoc      # Create just javadocs, depends on less than full docs)
-	$(info $(_) make profiles          # Create complete j2re compact profile images)
-	$(info $(_) make bootcycle-images  # Build images twice, second time with newly built JDK)
-	$(info $(_) make install           # Install the generated images locally)
-	$(info $(_) make reconfigure       # Rerun configure with the same arguments as last time)
-	$(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 cleaning)
-	$(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 clean-<outputdir> # Remove the subdir in the output dir with the name)
-	$(info $(_) make clean-<phase>     # Remove all build results related to a certain build)
-	$(info $(_)                        # phase (gensrc, java, libs, launchers))
-	$(info $(_) make clean-<module>    # Remove all build results related to a certain module)
-	$(info $(_) make clean-<module>-<phase> # Remove all build results related to a certain)
-	$(info $(_)                        # module and phase)
-	$(info )
-	$(info Targets for specific modules)
-	$(info $(_) make <module>          # Build <module> and everything it depends on.)
-	$(info $(_) make <module>-<phase>  # Compile the specified phase for the specified module)
-	$(info $(_)                        # and everything it depends on)
-	$(info $(_)                        # (gensrc, java, copy, libs, launchers, gendata, rmic))
-	$(info )
-	$(info Make control variables)
-	$(info $(_) CONF=                  # Build all configurations (note, assignment is empty))
-	$(info $(_) CONF=<substring>       # Build the configuration(s) with a name matching)
-	$(info $(_)                        # <substring>)
-	$(info $(_) SPEC=<spec file>       # Build the configuration given by the spec file)
-	$(info $(_) 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 $(_) JOBS=<n>               # Run <n> parallel make jobs)
-	$(info $(_)                        # Note that -jN does not work as expected!)
-	$(info $(_) IGNORE_OLD_CONFIG=true # Skip tests if spec file is up to date)
-	$(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
+# ... and then we can include the real makefile
+include $(topdir)/make/Init.gmk