1 #
   2 # Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 ################################################################################
  27 # This is the bootstrapping part of the build. This file is included from the
  28 # top level Makefile, and is responsible for launching the Main.gmk file with
  29 # the proper make and the proper make arguments.
  30 ################################################################################
  31 
  32 # This must be the first rule
  33 default:
  34 .PHONY: default
  35 
  36 # Inclusion of this pseudo-target will cause make to execute this file
  37 # serially, regardless of -j.
  38 .NOTPARALLEL:
  39 
  40 ifeq ($(HAS_SPEC),)
  41   ##############################################################################
  42   # This is the default mode. We have not been recursively called with a SPEC.
  43   ##############################################################################
  44 
  45   # Include our helper functions.
  46   include $(topdir)/make/InitSupport.gmk
  47 
  48   # Here are "global" targets, i.e. targets that can be executed without having
  49   # a configuration. This will define ALL_GLOBAL_TARGETS.
  50   include $(topdir)/make/Help.gmk
  51 
  52   # Targets provided by Init.gmk.
  53   ALL_INIT_TARGETS := print-modules print-targets print-configuration \
  54       reconfigure pre-compare-build post-compare-build
  55 
  56   # CALLED_TARGETS is the list of targets that the user provided,
  57   # or "default" if unspecified.
  58   CALLED_TARGETS := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), default)
  59 
  60   # Extract non-global targets that require a spec file.
  61   CALLED_SPEC_TARGETS := $(filter-out $(ALL_GLOBAL_TARGETS), $(CALLED_TARGETS))
  62 
  63   # If we have only global targets, or if we are called with -qp (assuming an
  64   # external part, e.g. bash completion, is trying to understand our targets),
  65   # we will skip SPEC location and the sanity checks.
  66   ifeq ($(CALLED_SPEC_TARGETS), )
  67     ONLY_GLOBAL_TARGETS := true
  68   endif
  69   ifneq ($(findstring qp, $(MAKEFLAGS)),)
  70     ONLY_GLOBAL_TARGETS := true
  71   endif
  72 
  73   ifeq ($(ONLY_GLOBAL_TARGETS), true)
  74     ############################################################################
  75     # We have only global targets, or are called with -pq.
  76     ############################################################################
  77 
  78     ifeq ($(wildcard $(SPEC)), )
  79       # If we have no SPEC provided, we will just make a "best effort" target list.
  80       # First try to grab any available pre-existing main-targets.gmk.
  81       main_targets_file := $(firstword $(wildcard $(build_dir)/*/make-support/main-targets.gmk))
  82       ifneq ($(main_targets_file), )
  83         # Extract the SPEC that corresponds to this main-targets.gmk file.
  84         SPEC := $(patsubst %/make-support/main-targets.gmk, %/spec.gmk, $(main_targets_file))
  85       else
  86         # None found, pick an arbitrary SPEC for which to generate a file
  87         SPEC := $(firstword $(all_spec_files))
  88       endif
  89     endif
  90 
  91     ifneq ($(wildcard $(SPEC)), )
  92       $(eval $(call DefineMainTargets, LAZY, $(SPEC)))
  93     else
  94       # If we have no configurations we can not provide any main targets.
  95       ALL_MAIN_TARGETS :=
  96     endif
  97 
  98     ALL_TARGETS := $(sort $(ALL_GLOBAL_TARGETS) $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS))
  99 
 100     # Just list all our targets.
 101     $(ALL_TARGETS):
 102 
 103     .PHONY: $(ALL_TARGETS)
 104 
 105   else
 106     ############################################################################
 107     # This is the normal case, we have been called from the command line by the
 108     # user and we need to call ourself back with a proper SPEC.
 109     # We have at least one non-global target, so we need to find a spec file.
 110     ############################################################################
 111 
 112     # Basic checks on environment and command line.
 113     $(eval $(call CheckControlVariables))
 114     $(eval $(call CheckDeprecatedEnvironment))
 115     $(eval $(call CheckInvalidMakeFlags))
 116 
 117     # Check that CONF_CHECK is valid.
 118     $(eval $(call ParseConfCheckOption))
 119 
 120     # Check that the LOG given is valid, and set LOG_LEVEL, LOG_NOFILE and MAKE_LOG_FLAGS.
 121     $(eval $(call ParseLogLevel))
 122 
 123     # After this SPECS contain 1..N spec files (otherwise ParseConfAndSpec fails).
 124     $(eval $(call ParseConfAndSpec))
 125 
 126     # Extract main targets from Main.gmk using the spec(s) provided. In theory,
 127     # with multiple specs, we should find the intersection of targets provided
 128     # by all specs, but we approximate this by an arbitrary spec from the list.
 129     # This will setup ALL_MAIN_TARGETS.
 130     $(eval $(call DefineMainTargets, FORCE, $(firstword $(SPECS))))
 131 
 132     # Separate called targets depending on type.
 133     INIT_TARGETS := $(filter $(ALL_INIT_TARGETS), $(CALLED_SPEC_TARGETS))
 134     MAIN_TARGETS := $(filter $(ALL_MAIN_TARGETS), $(CALLED_SPEC_TARGETS))
 135     SEQUENTIAL_TARGETS := $(filter dist-clean clean%, $(MAIN_TARGETS))
 136     PARALLEL_TARGETS := $(filter-out $(SEQUENTIAL_TARGETS), $(MAIN_TARGETS))
 137 
 138     # The spec files depend on the autoconf source code. This check makes sure
 139     # the configuration is up to date after changes to configure.
 140     CUSTOM_CONFIG_DIR ?= $(topdir)/closed/autoconf
 141 
 142     $(SPECS): $(wildcard $(topdir)/common/autoconf/*) $(wildcard $(CUSTOM_CONFIG_DIR)/*)
 143         ifeq ($(CONF_CHECK), fail)
 144           @echo "Error: The configuration is not up to date for '$(lastword $(subst /, , $(dir $@)))'."
 145           $(call PrintConfCheckFailed)
 146           @exit 2
 147         else ifeq ($(CONF_CHECK), auto)
 148           @echo "Note: The configuration is not up to date for '$(lastword $(subst /, , $(dir $@)))'."
 149           @( cd $(topdir) && \
 150               $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -f $(topdir)/make/Init.gmk \
 151               SPEC=$@ HAS_SPEC=true ACTUAL_TOPDIR=$(topdir) \
 152               reconfigure )
 153         else ifeq ($(CONF_CHECK), ignore)
 154           # Do nothing
 155         endif
 156 
 157     # Unless reconfigure is explicitely called, let all main targets depend on
 158     # the spec files to be up to date.
 159     ifeq ($(findstring reconfigure, $(INIT_TARGETS)), )
 160       $(MAIN_TARGETS): $(SPECS)
 161     endif
 162 
 163     make-info:
 164         ifneq ($(findstring $(LOG_LEVEL),info debug trace),)
 165           $(info Running make as '$(strip $(MAKE) $(MFLAGS) \
 166               $(COMMAND_LINE_VARIABLES) $(MAKECMDGOALS))')
 167         endif
 168 
 169     MAKE_INIT_WITH_SPEC_ARGUMENTS := ACTUAL_TOPDIR=$(topdir) \
 170         USER_MAKE_VARS="$(USER_MAKE_VARS)" MAKE_LOG_FLAGS=$(MAKE_LOG_FLAGS) \
 171         LOG_LEVEL=$(LOG_LEVEL) LOG_NOFILE=$(LOG_NOFILE) \
 172         INIT_TARGETS="$(INIT_TARGETS)" \
 173         SEQUENTIAL_TARGETS="$(SEQUENTIAL_TARGETS)" \
 174         PARALLEL_TARGETS="$(PARALLEL_TARGETS)"
 175 
 176     # Now the init and main targets will be called, once for each SPEC. The
 177     # recipe will be run once for every target specified, but we only want to
 178     # execute the recipe a single time, hence the TARGET_DONE with a dummy
 179     # command if true.
 180     # The COMPARE_BUILD part implements special support for makefile development.
 181     $(ALL_INIT_TARGETS) $(ALL_MAIN_TARGETS): make-info
 182         @$(if $(TARGET_DONE), \
 183           true \
 184         , \
 185           ( cd $(topdir) && \
 186           $(foreach spec, $(SPECS), \
 187             $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -j 1 -f $(topdir)/make/Init.gmk \
 188                 SPEC=$(spec) HAS_SPEC=true $(MAKE_INIT_WITH_SPEC_ARGUMENTS) \
 189                 main && \
 190             $(if $(and $(COMPARE_BUILD), $(PARALLEL_TARGETS)), \
 191                 $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -f $(topdir)/make/Init.gmk \
 192                     SPEC=$(spec) HAS_SPEC=true ACTUAL_TOPDIR=$(topdir) \
 193                     COMPARE_BUILD="$(COMPARE_BUILD)" pre-compare-build && \
 194                 $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -j 1 -f $(topdir)/make/Init.gmk \
 195                     SPEC=$(spec) HAS_SPEC=true $(MAKE_INIT_WITH_SPEC_ARGUMENTS) \
 196                     COMPARE_BUILD="$(COMPARE_BUILD)" main && \
 197                 $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -f $(topdir)/make/Init.gmk \
 198                     SPEC=$(spec) HAS_SPEC=true ACTUAL_TOPDIR=$(topdir) \
 199                     COMPARE_BUILD="$(COMPARE_BUILD)" post-compare-build && \
 200             ) \
 201           ) true ) \
 202           $(eval TARGET_DONE=true) \
 203         )
 204 
 205     .PHONY: $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS)
 206 
 207   endif # $(ONLY_GLOBAL_TARGETS)!=true
 208 
 209 else # HAS_SPEC=true
 210 
 211   ##############################################################################
 212   # Now we have a spec. This part provides the "main" target that acts as a
 213   # trampoline to call the Main.gmk with the value of $(MAKE) found in the spec
 214   # file.
 215   ##############################################################################
 216 
 217   include $(SPEC)
 218 
 219   # Our helper functions.
 220   include $(TOPDIR)/make/InitSupport.gmk
 221 
 222   # Verify that the spec file we included seems okay.
 223   $(eval $(call CheckSpecSanity))
 224 
 225   # Parse COMPARE_BUILD (for makefile development)
 226   $(eval $(call ParseCompareBuild))
 227 
 228   ifeq ($(LOG_NOFILE), true)
 229     # Disable build log if LOG=[level,]nofile was given
 230     override BUILD_LOG_PIPE :=
 231   endif
 232 
 233   ifeq ($(OUTPUT_SYNC_SUPPORTED), true)
 234     OUTPUT_SYNC_FLAG := -O$(OUTPUT_SYNC)
 235   endif
 236 
 237   ##############################################################################
 238   # Init targets
 239   ##############################################################################
 240 
 241   print-modules:
 242         ( cd $(TOPDIR) && \
 243             $(MAKE) $(MAKE_ARGS) -j 1 -f make/Main.gmk $(USER_MAKE_VARS) \
 244             NO_RECIPES=true print-modules )
 245 
 246   print-targets:
 247         ( cd $(TOPDIR) && \
 248             $(MAKE) $(MAKE_ARGS) -j 1 -f make/Main.gmk $(USER_MAKE_VARS) \
 249             NO_RECIPES=true print-targets )
 250 
 251   print-configuration:
 252           $(ECHO) $(CONFIGURE_COMMAND_LINE)
 253 
 254   reconfigure:
 255         ifneq ($(CONFIGURE_COMMAND_LINE), )
 256           $(ECHO) "Re-running configure using arguments '$(CONFIGURE_COMMAND_LINE)'"
 257         else
 258           $(ECHO) "Re-running configure using default settings"
 259         endif
 260         ( cd $(OUTPUT_ROOT) && PATH="$(ORIGINAL_PATH)" \
 261             $(BASH) $(TOPDIR)/configure $(CONFIGURE_COMMAND_LINE) )
 262 
 263   ##############################################################################
 264   # The main target, for delegating into Main.gmk
 265   ##############################################################################
 266 
 267   MAIN_TARGETS := $(SEQUENTIAL_TARGETS) $(PARALLEL_TARGETS) $(COMPARE_BUILD_MAKE)
 268   TARGET_DESCRIPTION := target$(if $(word 2, $(MAIN_TARGETS)),s) \
 269       '$(strip $(MAIN_TARGETS))' in configuration '$(CONF_NAME)'
 270 
 271   # MAKEOVERRIDES is automatically set and propagated by Make to sub-Make calls.
 272   # We need to clear it of the init-specific variables. The user-specified
 273   # variables are explicitely propagated using $(USER_MAKE_VARS).
 274   main: MAKEOVERRIDES :=
 275 
 276   main: $(INIT_TARGETS)
 277         ifneq ($(SEQUENTIAL_TARGETS)$(PARALLEL_TARGETS), )
 278           $(call RotateLogFiles)
 279           $(call PrepareFailureLogs)
 280           $(PRINTF) "Building $(TARGET_DESCRIPTION)\n" $(BUILD_LOG_PIPE)
 281           ifneq ($(SEQUENTIAL_TARGETS), )
 282             # Don't touch build output dir since we might be cleaning. That
 283             # means no log pipe.
 284             ( cd $(TOPDIR) && \
 285                 $(MAKE) $(MAKE_ARGS) -j 1 -f make/Main.gmk $(USER_MAKE_VARS) \
 286                 $(SEQUENTIAL_TARGETS) )
 287           endif
 288           ifneq ($(PARALLEL_TARGETS), )
 289             $(call StartGlobalTimer)
 290             $(call PrepareSmartJavac)
 291             ( cd $(TOPDIR) && \
 292                 $(NICE) $(MAKE) $(MAKE_ARGS) $(OUTPUT_SYNC_FLAG) \
 293                     -j $(JOBS) -f make/Main.gmk $(USER_MAKE_VARS) \
 294                     $(PARALLEL_TARGETS) $(COMPARE_BUILD_MAKE) $(BUILD_LOG_PIPE) || \
 295                 ( exitcode=$$? && \
 296                 $(PRINTF) "\nERROR: Build failed for $(TARGET_DESCRIPTION) (exit code $$exitcode) \n" \
 297                     $(BUILD_LOG_PIPE) && \
 298                 cd $(TOPDIR) && $(MAKE) $(MAKE_ARGS) -j 1 -f make/Init.gmk \
 299                     HAS_SPEC=true on-failure ; \
 300                 exit $$exitcode ) )
 301             $(call CleanupSmartJavac)
 302             $(call StopGlobalTimer)
 303             $(call ReportBuildTimes)
 304           endif
 305           $(PRINTF) "Finished building $(TARGET_DESCRIPTION)\n" $(BUILD_LOG_PIPE)
 306         endif
 307 
 308     on-failure:
 309         $(call PrintFailureReports)
 310         $(call PrintBuildLogFailures)
 311         $(PRINTF) "Hint: If caused by a warning, try configure --disable-warnings-as-errors.\n\n"
 312         ifneq ($(COMPARE_BUILD), )
 313           $(call CleanupCompareBuild)
 314         endif
 315 
 316     # Support targets for COMPARE_BUILD, used for makefile development
 317     pre-compare-build:
 318         $(call PrepareCompareBuild)
 319 
 320     post-compare-build:
 321         $(call CleanupCompareBuild)
 322         $(call CompareBuildDoComparison)
 323 
 324   .PHONY: print-targets print-modules reconfigure main on-failure
 325 endif