--- /dev/null 2012-06-05 09:41:31.162991907 +0200 +++ new/common/makefiles/MakeHelpers.gmk 2012-07-06 00:58:07.025667368 +0200 @@ -0,0 +1,185 @@ +# +# Copyright (c) 2011, 2012, 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 +# under the terms of the GNU General Public License version 2 only, as +# published by the Free Software Foundation. Oracle designates this +# particular file as subject to the "Classpath" exception as provided +# by Oracle in the LICENSE file that accompanied this code. +# +# This code is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# version 2 for more details (a copy is included in the LICENSE file that +# accompanied this code). +# +# You should have received a copy of the GNU General Public License version +# 2 along with this work; if not, write to the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. +# +# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA +# or visit www.oracle.com if you need additional information or have any +# questions. +# + +################################################################ +# +# This file contains helper functions for the top-level Makefile that does +# not depend on the spec.gmk file having been read. (The purpose of this +# file is ju to avoid cluttering the top-level Makefile.) +# +################################################################ + +ifndef _MAKEHELPERS_GMK +_MAKEHELPERS_GMK := 1 + +############################## +# Stuff to run at include time +############################## + +# Find out which variables were passed explicitely on the make command line. These +# will be passed on to sub-makes, overriding spec.gmk settings. +MAKE_ARGS=$(foreach var,$(subst =command,,$(filter %=command,$(foreach var,$(.VARIABLES),$(var)=$(firstword $(origin $(var)))))),$(var)=$($(var))) + +list_alt_overrides_with_origins=$(filter ALT_%=environment ALT_%=command,$(foreach var,$(.VARIABLES),$(var)=$(firstword $(origin $(var))))) +list_alt_overrides=$(subst =command,,$(subst =environment,,$(list_alt_overrides_with_origins))) + +############################## +# Functions +############################## + +define fatal-error + # If the user specificed a "global" target (e.g. 'help'), do not exit but continue running + $$(if $$(findstring help,$$(MAKECMDGOALS)),,$$(error Cannot continue)) +endef + +define ParseLogLevel + ifeq ($$(origin VERBOSE),undefined) + # Setup logging according to LOG (but only if VERBOSE is not given) + ifeq ($$(LOG),) + # Set LOG to "warn" as default if not set (and no VERBOSE given) + LOG=warn + endif + ifeq ($$(LOG),warn) + VERBOSE=-s + else ifeq ($$(LOG),info) + VERBOSE= + else ifeq ($$(LOG),debug) + VERBOSE= + else ifeq ($$(LOG),trace) + VERBOSE=-d -p + else + $$(info Error: LOG must be one of: warn, info, debug or trace.) + $$(eval $$(call fatal-error)) + endif + else + ifneq ($$(LOG),) + # We have both a VERBOSE and a LOG argument. This is OK only if this is a repeated call by ourselves, + # but complain if this is the top-level make call. + ifeq ($$(MAKELEVEL),0) + $$(info Cannot use LOG=$$(LOG) and VERBOSE=$$(VERBOSE) at the same time. Choose one.) + $$(eval $$(call fatal-error)) + endif + endif + endif +endef + +# TODO: Fix duplication in MakeBase.gmk +define SetupLogging + ifneq ($(findstring $(LOG),debug trace),) + # Shell redefinition trick inspired by http://www.cmcrossroads.com/ask-mr-make/6535-tracing-rule-execution-in-gnu-make + OLD_SHELL:=$$(SHELL) + SHELL = $$(warning Building $$@$$(if $$<, (from $$<))$(if $$?, ($$? newer)))$$(OLD_SHELL) -x + endif +endef + +define ParseConfAndSpec + ifneq ($$(origin SPEC),undefined) + # We have been given a SPEC, check that it works out properly + ifeq ($$(wildcard $$(SPEC)),) + $$(info Cannot locate spec.gmk, given by SPEC=$$(SPEC)) + $$(eval $$(call fatal-error)) + endif + ifneq ($$(origin CONF),undefined) + # We also have a CONF argument. This is OK only if this is a repeated call by ourselves, + # but complain if this is the top-level make call. + ifeq ($$(MAKELEVEL),0) + $$(info Cannot use CONF=$$(CONF) and SPEC=$$(SPEC) at the same time. Choose one.) + $$(eval $$(call fatal-error)) + endif + endif + # ... OK, we're satisfied, we'll use this SPEC later on + else + # Find all spec.gmk files in the build output directory + output_dir=$$(root_dir)/build + all_spec_files=$$(wildcard $$(output_dir)/*/spec.gmk) + ifeq ($$(all_spec_files),) + $$(info No configurations found for $$(root_dir)! Please run configure to create a configuration.) + $$(eval $$(call fatal-error)) + endif + # Extract the configuration names from the path + all_confs=$$(patsubst %/spec.gmk,%,$$(patsubst $$(output_dir)/%,%,$$(all_spec_files))) + + ifneq ($$(origin CONF),undefined) + # User have given a CONF= argument. + ifeq ($$(CONF),) + # If given CONF=, match all configurations + matching_confs=$$(strip $$(all_confs)) + else + # Otherwise select those that contain the given CONF string + matching_confs=$$(strip $$(foreach var,$$(all_confs),$$(if $$(findstring $$(CONF),$$(var)),$$(var)))) + endif + ifeq ($$(matching_confs),) + $$(info No configurations found matching CONF=$$(CONF)) + $$(info Available configurations:) + $$(foreach var,$$(all_confs),$$(info * $$(var))) + $$(eval $$(call fatal-error)) + else + ifeq ($$(words $$(matching_confs)),1) + $$(info Building '$$(matching_confs)' (matching CONF=$$(CONF))) + else + $$(info Building the following configurations (matching CONF=$$(CONF)):) + $$(foreach var,$$(matching_confs),$$(info * $$(var))) + endif + endif + + # Create a SPEC definition. This will contain the path to one or more spec.gmk files. + SPEC=$$(addsuffix /spec.gmk,$$(addprefix $$(output_dir)/,$$(matching_confs))) + else + # No CONF or SPEC given, check the available configurations + ifneq ($$(words $$(all_spec_files)),1) + $$(info No CONF or SPEC given, but more than one spec.gmk found in $$(output_dir).) + $$(info Available configurations:) + $$(foreach var,$$(all_confs),$$(info * $$(var))) + $$(info Please retry building with CONF= or SPEC=) + $$(eval $$(call fatal-error)) + endif + + # We found exactly one configuration, use it + SPEC=$$(strip $$(all_spec_files)) + endif + endif +endef + +define CheckEnvironment + # Find all environment or command line variables that begin with ALT. + $(if $(list_alt_overrides), + @$(PRINTF) "\nWARNING: You have the following ALT_ variables set:\n" + @$(PRINTF) "$(foreach var,$(list_alt_overrides),$(var)=$$$(var))\n" + @$(PRINTF) "ALT_ variables are deprecated and will be ignored. Please clean your environment.\n\n" + ) +endef + +define PrintStartMessage + $(if $(VERBOSE),,@$(ECHO) Running make as $(MAKE) $(MFLAGS) $(MAKE_ARGS)) + $(call CheckEnvironment) + @$(ECHO) "Building OpenJDK for target $(if $(MAKECMDGOALS),'$(MAKECMDGOALS)','all') in configuration '$(CONF_NAME)'" +endef + +define PrintEndMessage + @$(ECHO) "Finished building OpenJDK for target '$@'" + $(call CheckEnvironment) +endef + +endif # _MAKEHELPERS_GMK