Makefile revision 1243:56e20ce67f01 
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
27default:
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.
39ifeq ($(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.)
41endif
42
43# Locate this Makefile
44ifeq ($(filter /%,$(lastword $(MAKEFILE_LIST))),)
45  makefile_path:=$(CURDIR)/$(lastword $(MAKEFILE_LIST))
46else
47  makefile_path:=$(lastword $(MAKEFILE_LIST))
48endif
49root_dir:=$(patsubst %/,%,$(dir $(makefile_path)))
50
51ifneq ($(findstring qp,$(MAKEFLAGS)),)
52  # When called with -qp, assume an external part (e.g. bash completion) is trying
53  # to understand our targets.
54  # Duplication of global targets, needed before ParseConfAndSpec in case we have
55  # no configurations.
56  help:
57  # If CONF is not set, look for all available configurations
58  CONF?=
59endif
60
61# ... and then we can include our helper functions
62include $(root_dir)/make/MakeHelpers.gmk
63
64$(eval $(call ParseLogLevel))
65$(eval $(call ParseConfAndSpec))
66
67# Now determine if we have zero, one or several configurations to build.
68ifeq ($(SPEC),)
69  # Since we got past ParseConfAndSpec, we must be building a global target. Do nothing.
70else
71  # In Cygwin, the MAKE variable gets messed up if the make executable is called with
72  # a Windows mixed path (c:/cygwin/bin/make.exe). If that's the case, fix it by removing
73  # the prepended root_dir.
74  ifneq ($(findstring :, $(MAKE)), )
75    MAKE := $(patsubst $(root_dir)%, %, $(MAKE))
76  endif
77
78  # We are potentially building multiple configurations.
79  # First, find out the valid targets
80  # Run the makefile with an arbitrary SPEC using -p -q (quiet dry-run and dump rules) to find
81  # available PHONY targets. Use this list as valid targets to pass on to the repeated calls.
82  all_phony_targets := $(sort $(filter-out $(global_targets), $(strip $(shell \
83      cd $(root_dir)/make && $(MAKE) -f Main.gmk -p -q FRC SPEC=$(firstword $(SPEC)) \
84      -I $(root_dir)/make/common | grep "^.PHONY:" | head -n 1 | cut -d " " -f 2-))))
85
86  # Loop through the configurations and call the main-wrapper for each one. The wrapper
87  # target will execute with a single configuration loaded.
88  $(all_phony_targets):
89	@$(if $(TARGET_RUN),,\
90          $(foreach spec,$(SPEC),\
91            (cd $(root_dir) && $(MAKE) SPEC=$(spec) MAIN_TARGETS="$(call GetRealTarget)" \
92	    $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) main-wrapper) &&) true)
93	@echo > /dev/null
94	$(eval TARGET_RUN=true)
95
96  .PHONY: $(all_phony_targets)
97
98  ifneq ($(MAIN_TARGETS), )
99    # The wrapper target was called so we now have a single configuration. Load the spec file
100    # and call the real Main.gmk.
101    include $(SPEC)
102    include $(SRC_ROOT)/make/common/MakeBase.gmk
103
104    ### Clean up from previous run
105    # Remove any build.log from a previous run, if they exist
106    ifneq (,$(BUILD_LOG))
107      ifneq (,$(BUILD_LOG_PREVIOUS))
108        # Rotate old log
109        $(shell $(RM) $(BUILD_LOG_PREVIOUS) 2> /dev/null)
110        $(shell $(MV) $(BUILD_LOG) $(BUILD_LOG_PREVIOUS) 2> /dev/null)
111      else
112        $(shell $(RM) $(BUILD_LOG) 2> /dev/null)
113      endif
114      $(shell $(RM) $(OUTPUT_ROOT)/build-trace-time.log 2> /dev/null)
115    endif
116    # Remove any javac server logs and port files. This
117    # prevents a new make run to reuse the previous servers.
118    ifneq (,$(SJAVAC_SERVER_DIR))
119      $(shell $(MKDIR) -p $(SJAVAC_SERVER_DIR) && $(RM) -rf $(SJAVAC_SERVER_DIR)/*)
120    endif
121
122    # Split out the targets requiring sequential execution. Run these targets separately
123    # from the rest so that the rest may still enjoy full parallel execution.
124    SEQUENTIAL_TARGETS := $(filter dist-clean clean% reconfigure, $(MAIN_TARGETS))
125    PARALLEL_TARGETS := $(filter-out $(SEQUENTIAL_TARGETS), $(MAIN_TARGETS))
126
127    main-wrapper:
128        ifneq ($(SEQUENTIAL_TARGETS), )
129	  (cd $(SRC_ROOT)/make && $(MAKE) -f Main.gmk SPEC=$(SPEC) -j 1 \
130	      $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $(SEQUENTIAL_TARGETS))
131        endif
132        ifneq ($(PARALLEL_TARGETS), )
133	  @$(call AtMakeStart)
134	  (cd $(SRC_ROOT)/make && $(BUILD_LOG_WRAPPER) $(MAKE) -f Main.gmk SPEC=$(SPEC) -j $(JOBS) \
135	      $(VERBOSE) VERBOSE=$(VERBOSE) LOG_LEVEL=$(LOG_LEVEL) $(PARALLEL_TARGETS) \
136	      $(if $(filter true, $(OUTPUT_SYNC_SUPPORTED)), -O$(OUTPUT_SYNC)))
137	  @$(call AtMakeEnd)
138        endif
139
140     .PHONY: main-wrapper
141
142   endif
143endif
144
145# Here are "global" targets, i.e. targets that can be executed without specifying a single configuration.
146# If you add more global targets, please update the variable global_targets in MakeHelpers.
147
148help:
149	$(info )
150	$(info OpenJDK Makefile help)
151	$(info =====================)
152	$(info )
153	$(info Common make targets)
154	$(info .  make [default]         # Compile all modules in langtools, hotspot, jaxp, jaxws,)
155	$(info .                         # corba and jdk and create a runnable "exploded" image)
156	$(info .  make all               # Compile everything, all repos, docs and images)
157	$(info .  make images            # Create complete jdk and jre images)
158	$(info .  make <phase>           # Compile the specified phase and everything it depends on)
159	$(info .                         # (gensrc, java, copy, libs, launchers, gendata, rmic))
160	$(info .  make *-only            # Applies to most targets and disables compling the)
161	$(info .                         # dependencies for the target. This is faster but may)
162	$(info .                         # result in incorrect build results!)
163	$(info .  make docs              # Create all docs)
164	$(info .  make docs-javadoc      # Create just javadocs, depends on less than full docs)
165	$(info .  make profiles          # Create complete jre compact profile images)
166	$(info .  make bootcycle-images  # Build images twice, second time with newly built JDK)
167	$(info .  make install           # Install the generated images locally)
168	$(info .  make reconfigure       # Rerun configure with the same arguments as last time)
169	$(info .  make help              # Give some help on using make)
170	$(info .  make test              # Run tests, default is all tests (see TEST below))
171	$(info )
172	$(info Targets for cleaning)
173	$(info .  make clean             # Remove all files generated by make, but not those)
174	$(info .                         # generated by configure)
175	$(info .  make dist-clean        # Remove all files, including configuration)
176	$(info .  make clean-<outputdir> # Remove the subdir in the output dir with the name)
177	$(info .  make clean-<phase>     # Remove all build results related to a certain build)
178	$(info .                         # phase (gensrc, java, libs, launchers))
179	$(info .  make clean-<module>    # Remove all build results related to a certain module)
180	$(info .  make clean-<module>-<phase> # Remove all build results related to a certain)
181	$(info .                         # module and phase)
182	$(info )
183	$(info Targets for specific modules)
184	$(info .  make <module>          # Build <module> and everything it depends on. )
185	$(info .  make <module>-<phase>  # Compile the specified phase for the specified module)
186	$(info .                         # and everything it depends on)
187	$(info .                         # (gensrc, java, copy, libs, launchers, gendata, rmic))
188	$(info )
189	$(info Useful make variables)
190	$(info .  make CONF=             # Build all configurations (note, assignment is empty))
191	$(info .  make CONF=<substring>  # Build the configuration(s) with a name matching)
192	$(info .                         # <substring>)
193	$(info )
194	$(info .  make LOG=<loglevel>    # Change the log level from warn to <loglevel>)
195	$(info .                         # Available log levels are:)
196	$(info .                         # 'warn' (default), 'info', 'debug' and 'trace')
197	$(info .                         # To see executed command lines, use LOG=debug)
198	$(info )
199	$(info .  make JOBS=<n>          # Run <n> parallel make jobs)
200	$(info .                         # Note that -jN does not work as expected!)
201	$(info )
202	$(info .  make test TEST=<test>  # Only run the given test or tests, e.g.)
203	$(info .                         # make test TEST="jdk_lang jdk_net")
204	$(info )
205
206.PHONY: help
207