1 #
   2 # Copyright (c) 2012, 2013, 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 # This must be the first rule
  27 default:
  28 
  29 # Inclusion of this pseudo-target will cause make to execute this file
  30 # serially, regardless of -j. Recursively called makefiles will not be
  31 # affected, however. This is required for correct dependency management.
  32 .NOTPARALLEL:
  33 
  34 # The shell code below will be executed on /usr/ccs/bin/make on Solaris, but not in GNU make.
  35 # /usr/ccs/bin/make lacks basically every other flow control mechanism.
  36 TEST_FOR_NON_GNUMAKE:sh=echo You are not using GNU make/gmake, this is a requirement. Check your path. 1>&2 && exit 1
  37 
  38 # Assume we have GNU make, but check version.
  39 ifeq ($(strip $(foreach v, 3.81% 3.82% 4.%, $(filter $v, $(MAKE_VERSION)))), )
  40   $(error This version of GNU Make is too low ($(MAKE_VERSION)). Check your path, or upgrade to 3.81 or newer.)
  41 endif
  42 
  43 # Locate this Makefile
  44 ifeq ($(filter /%,$(lastword $(MAKEFILE_LIST))),)
  45   makefile_path:=$(CURDIR)/$(lastword $(MAKEFILE_LIST))
  46 else
  47   makefile_path:=$(lastword $(MAKEFILE_LIST))
  48 endif
  49 root_dir:=$(dir $(makefile_path))
  50 
  51 # ... and then we can include our helper functions
  52 include $(root_dir)/make/MakeHelpers.gmk
  53 
  54 $(eval $(call ParseLogLevel))
  55 $(eval $(call ParseConfAndSpec))
  56 
  57 # Now determine if we have zero, one or several configurations to build.
  58 ifeq ($(SPEC),)
  59   # Since we got past ParseConfAndSpec, we must be building a global target. Do nothing.
  60 else
  61   # In Cygwin, the MAKE variable gets messed up if the make executable is called with
  62   # a Windows mixed path (c:/cygwin/bin/make.exe). If that's the case, fix it by removing
  63   # the prepended root_dir.
  64   ifneq ($(findstring :, $(MAKE)), )
  65     MAKE := $(patsubst $(root_dir)%, %, $(MAKE))
  66   endif
  67 
  68   # We are potentially building multiple configurations.
  69   # First, find out the valid targets
  70   # Run the makefile with an arbitrary SPEC using -p -q (quiet dry-run and dump rules) to find
  71   # available PHONY targets. Use this list as valid targets to pass on to the repeated calls.
  72   all_phony_targets := $(sort $(filter-out $(global_targets), $(strip $(shell \
  73       cd $(root_dir)/make && $(MAKE) -f Main.gmk -p -q FRC SPEC=$(firstword $(SPEC)) | \
  74       grep "^.PHONY:" | head -n 1 | cut -d " " -f 2-))))
  75 
  76   # Loop through the configurations and call the main-wrapper for each one. The wrapper
  77   # target will execute with a single configuration loaded.
  78   $(all_phony_targets):
  79         @$(if $(TARGET_RUN),,\
  80           $(foreach spec,$(SPEC),\
  81             (cd $(root_dir) && $(MAKE) SPEC=$(spec) MAIN_TARGETS="$(call GetRealTarget)" \
  82             $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) main-wrapper) &&) true)
  83         @echo > /dev/null
  84         $(eval TARGET_RUN=true)
  85 
  86   .PHONY: $(all_phony_targets)
  87 
  88   ifneq ($(MAIN_TARGETS), )
  89     # The wrapper target was called so we now have a single configuration. Load the spec file
  90     # and call the real Main.gmk.
  91     include $(SPEC)
  92 
  93     ### Clean up from previous run
  94     # Remove any build.log from a previous run, if they exist
  95     ifneq (,$(BUILD_LOG))
  96       ifneq (,$(BUILD_LOG_PREVIOUS))
  97         # Rotate old log
  98         $(shell $(RM) $(BUILD_LOG_PREVIOUS) 2> /dev/null)
  99         $(shell $(MV) $(BUILD_LOG) $(BUILD_LOG_PREVIOUS) 2> /dev/null)
 100       else
 101         $(shell $(RM) $(BUILD_LOG) 2> /dev/null)
 102       endif
 103       $(shell $(RM) $(OUTPUT_ROOT)/build-trace-time.log 2> /dev/null)
 104     endif
 105     # Remove any javac server logs and port files. This
 106     # prevents a new make run to reuse the previous servers.
 107     ifneq (,$(SJAVAC_SERVER_DIR))
 108       $(shell $(MKDIR) -p $(SJAVAC_SERVER_DIR) && $(RM) -rf $(SJAVAC_SERVER_DIR)/*)
 109     endif
 110 
 111     # Split out the targets requiring sequential execution. Run these targets separately
 112     # from the rest so that the rest may still enjoy full parallel execution.
 113     SEQUENTIAL_TARGETS := $(filter dist-clean clean% reconfigure, $(MAIN_TARGETS))
 114     PARALLEL_TARGETS := $(filter-out $(SEQUENTIAL_TARGETS), $(MAIN_TARGETS))
 115 
 116     main-wrapper:
 117         ifneq ($(SEQUENTIAL_TARGETS), )
 118           (cd $(root_dir)/make && $(MAKE) -f Main.gmk SPEC=$(SPEC) -j 1 \
 119               $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $(SEQUENTIAL_TARGETS))
 120         endif
 121         ifneq ($(PARALLEL_TARGETS), )
 122           @$(call AtMakeStart)
 123           (cd $(root_dir)/make && $(BUILD_LOG_WRAPPER) $(MAKE) -f Main.gmk SPEC=$(SPEC) -j $(JOBS) \
 124               $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $(PARALLEL_TARGETS) \
 125               $(if $(filter true, $(OUTPUT_SYNC_SUPPORTED)), -O$(OUTPUT_SYNC)))
 126           @$(call AtMakeEnd)
 127         endif
 128 
 129      .PHONY: main-wrapper
 130 
 131    endif
 132 endif
 133 
 134 # Here are "global" targets, i.e. targets that can be executed without specifying a single configuration.
 135 # If you add more global targets, please update the variable global_targets in MakeHelpers.
 136 
 137 help:
 138         $(info )
 139         $(info OpenJDK Makefile help)
 140         $(info =====================)
 141         $(info )
 142         $(info Common make targets)
 143         $(info .  make [default]         # Compile all modules in langtools, hotspot, jaxp, jaxws,)
 144         $(info .                         # corba and jdk and create a runnable "exploded" image)
 145         $(info .  make all               # Compile everything, all repos, docs and images)
 146         $(info .  make images            # Create complete j2sdk and j2re images)
 147         $(info .  make docs              # Create all docs)
 148         $(info .  make docs-javadoc      # Create just javadocs, depends on less than full docs)
 149         $(info .  make profiles          # Create complete j2re compact profile images)
 150         $(info .  make bootcycle-images  # Build images twice, second time with newly built JDK)
 151         $(info .  make install           # Install the generated images locally)
 152         $(info .  make reconfigure       # Rerun configure with the same arguments as last time)
 153         $(info .  make clean             # Remove all files generated by make, but not those)
 154         $(info .                         # generated by configure)
 155         $(info .  make dist-clean        # Remove all files, including configuration)
 156         $(info .  make help              # Give some help on using make)
 157         $(info .  make test              # Run tests, default is all tests (see TEST below))
 158         $(info )
 159         $(info Targets for specific modules)
 160         $(info .  make <module>          # Build <module> and everything it depends on. )
 161         $(info .  make <module>-only     # Build <module> only, without dependencies. This)
 162         $(info .                         # is faster but can result in incorrect build results!)
 163         $(info .  make <module>-java     # Compile java classes for <module> and everything it)
 164         $(info .                         # depends on)
 165         $(info .  make <module>-libs     # Build native libraries for <module> and everything it)
 166         $(info .                         # depends on)
 167         $(info .  make <module>-launchers# Build native executables for <module> and everything it)
 168         $(info .                         # depends on)
 169         $(info .  make <module>-gensrc   # Execute the gensrc step for <module> and everything it)
 170         $(info .                         # depends on)
 171         $(info )
 172         $(info Useful make variables)
 173         $(info .  make CONF=             # Build all configurations (note, assignment is empty))
 174         $(info .  make CONF=<substring>  # Build the configuration(s) with a name matching)
 175         $(info .                         # <substring>)
 176         $(info )
 177         $(info .  make LOG=<loglevel>    # Change the log level from warn to <loglevel>)
 178         $(info .                         # Available log levels are:)
 179         $(info .                         # 'warn' (default), 'info', 'debug' and 'trace')
 180         $(info .                         # To see executed command lines, use LOG=debug)
 181         $(info )
 182         $(info .  make JOBS=<n>          # Run <n> parallel make jobs)
 183         $(info .                         # Note that -jN does not work as expected!)
 184         $(info )
 185         $(info .  make test TEST=<test>  # Only run the given test or tests, e.g.)
 186         $(info .                         # make test TEST="jdk_lang jdk_net")
 187         $(info )
 188 
 189 .PHONY: help