Init.gmk revision 1410:e805c9330c7a 
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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
33default:
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# If included from the top-level Makefile then topdir is set, but not when
41# recursively calling ourself with a spec.
42ifeq ($(topdir),)
43  topdir := $(strip $(patsubst %/make/, %, $(dir $(lastword $(MAKEFILE_LIST)))))
44endif
45
46# Our helper functions. Will include $(SPEC) if $(HAS_SPEC) is true.
47include $(topdir)/make/InitSupport.gmk
48
49# Here are "global" targets, i.e. targets that can be executed without having a configuration.
50# This will define ALL_GLOBAL_TARGETS.
51include $(topdir)/make/Help.gmk
52
53# Extract main targets from Main.gmk.
54ifneq ($(any_spec_file), )
55  ifeq ($(wildcard $(dir $(any_spec_file))/make-support),)
56    # If make-support does not exist, we need to build the genmodules java tool first.
57    $(info Creating data for first make execution in new configuration...)
58    ignore_output := $(shell $(MAKE) -r -R -f $(topdir)/make/Main.gmk \
59        -I $(topdir)/make/common SPEC=$(any_spec_file) NO_RECIPES=true FRC)
60    $(info Done)
61  endif
62  ALL_MAIN_TARGETS := $(shell $(MAKE) -r -R -f $(topdir)/make/Main.gmk \
63      -I $(topdir)/make/common SPEC=$(any_spec_file) NO_RECIPES=true print-targets)
64else
65  # Without at least a single valid configuration, we cannot extract any real
66  # targets. To provide a helpful error message about the missing configuration
67  # later on, accept whatever targets the user has provided for now.
68  ALL_MAIN_TARGETS := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), default)
69endif
70
71# Targets provided by this file.
72ALL_INIT_TARGETS := reconfigure
73
74ALL_TARGETS := $(sort $(ALL_GLOBAL_TARGETS) $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS))
75
76ifneq ($(findstring qp, $(MAKEFLAGS)),)
77  ##############################################################################
78  # When called with -qp, assume an external part (e.g. bash completion) is trying
79  # to understand our targets. Just list our targets and do no more checking.
80  ##############################################################################
81
82  $(ALL_TARGETS):
83
84  .PHONY: $(ALL_TARGETS)
85
86else ifeq ($(HAS_SPEC),)
87
88  ##############################################################################
89  # This is the normal case, we have been called from the command line by the
90  # user and we need to call ourself back with a proper SPEC.
91  ##############################################################################
92
93  $(eval $(call CheckControlVariables))
94  $(eval $(call CheckDeprecatedEnvironment))
95  $(eval $(call CheckInvalidMakeFlags))
96
97  $(eval $(call ParseConfCheckOption))
98
99  # Check that the LOG given is valid, and set LOG_LEVEL, LOG_NOFILE and MAKE_LOG_FLAGS.
100  $(eval $(call ParseLogLevel))
101
102  ifneq ($(findstring $(LOG_LEVEL),info debug trace),)
103    $(info Running make as '$(strip $(MAKE) $(MFLAGS) $(COMMAND_LINE_VARIABLES) $(MAKECMDGOALS))')
104  endif
105
106  # CALLED_TARGETS is the list of targets that the user provided,
107  # or "default" if unspecified.
108  CALLED_TARGETS := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), default)
109  CALLED_SPEC_TARGETS := $(filter $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS), $(CALLED_TARGETS))
110  ifneq ($(CALLED_SPEC_TARGETS),)
111    # We have at least one non-global target, which need a SPEC
112    $(eval $(call ParseConfAndSpec))
113    # Now SPECS contain 1..N spec files (otherwise ParseConfAndSpec fails)
114
115    INIT_TARGETS := $(filter $(ALL_INIT_TARGETS), $(CALLED_SPEC_TARGETS))
116    SEQUENTIAL_TARGETS := $(filter dist-clean clean%, $(CALLED_SPEC_TARGETS))
117    PARALLEL_TARGETS := $(filter-out $(INIT_TARGETS) $(SEQUENTIAL_TARGETS), $(CALLED_SPEC_TARGETS))
118
119    # The spec files depend on the autoconf source code. This check makes sure
120    # the configuration is up to date after changes to configure.
121    $(SPECS): $(wildcard $(topdir)/common/autoconf/*)
122        ifeq ($(CONF_CHECK), fail)
123	  @echo "Error: The configuration is not up to date for '$(lastword $(subst /, , $(dir $@)))'."
124	  $(call PrintConfCheckFailed)
125	  @exit 2
126        else ifeq ($(CONF_CHECK), auto)
127	  @echo "Note: The configuration is not up to date for '$(lastword $(subst /, , $(dir $@)))'."
128	  @( cd $(topdir) && \
129	      $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -f $(topdir)/make/Init.gmk SPEC=$@ HAS_SPEC=true \
130	      reconfigure )
131        else ifeq ($(CONF_CHECK), ignore)
132          # Do nothing
133        endif
134
135    # Unless reconfigure is explicitely called, let all targets depend on the spec files to be up to date.
136    ifeq ($(findstring reconfigure, $(CALLED_SPEC_TARGETS)), )
137      $(CALLED_SPEC_TARGETS): $(SPECS)
138    endif
139
140    # The recipe will be run once for every target specified, but we only want to execute the
141    # recipe a single time, hence the TARGET_DONE with a dummy command if true.
142    $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS):
143	@$(if $(TARGET_DONE), \
144	  true \
145	, \
146	  $(foreach spec, $(SPECS), \
147	    ( cd $(topdir) && \
148	    $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -j 1 -f $(topdir)/make/Init.gmk \
149	        SPEC=$(spec) HAS_SPEC=true \
150	        USER_MAKE_VARS="$(USER_MAKE_VARS)" MAKE_LOG_FLAGS=$(MAKE_LOG_FLAGS) \
151	        LOG_LEVEL=$(LOG_LEVEL) LOG_NOFILE=$(LOG_NOFILE) \
152	        INIT_TARGETS="$(INIT_TARGETS)" SEQUENTIAL_TARGETS="$(SEQUENTIAL_TARGETS)" \
153	        PARALLEL_TARGETS="$(PARALLEL_TARGETS)"  \
154	        main ) && \
155	  ) true \
156	  $(eval TARGET_DONE=true) \
157	)
158
159    .PHONY: $(ALL_MAIN_TARGETS) $(ALL_INIT_TARGETS)
160
161  endif # has $(CALLED_SPEC_TARGETS)
162
163else # HAS_SPEC=true
164
165  ##############################################################################
166  # Now we have a spec. This part provides the "main" target that acts as a
167  # trampoline to call the Main.gmk with the value of $(MAKE) found in the spec
168  # file.
169  ##############################################################################
170
171  ifeq ($(LOG_NOFILE), true)
172    # Disable log wrapper if LOG=[level,]nofile was given
173    override BUILD_LOG_WRAPPER :=
174  endif
175
176  ifeq ($(OUTPUT_SYNC_SUPPORTED), true)
177    OUTPUT_SYNC_FLAG := -O$(OUTPUT_SYNC)
178  endif
179
180  $(eval $(call CheckSpecSanity))
181
182  reconfigure:
183        ifneq ($(CONFIGURE_COMMAND_LINE), )
184	  $(ECHO) "Re-running configure using arguments '$(CONFIGURE_COMMAND_LINE)'"
185        else
186	  $(ECHO) "Re-running configure using default settings"
187        endif
188	( cd $(OUTPUT_ROOT) && PATH="$(ORIGINAL_PATH)" \
189	    $(BASH) $(TOPDIR)/configure $(CONFIGURE_COMMAND_LINE) )
190
191  main-init:
192	$(call RotateLogFiles)
193	$(BUILD_LOG_WRAPPER) $(PRINTF) "Building target(s) '$(strip \
194	    $(INIT_TARGETS) $(SEQUENTIAL_TARGETS) $(PARALLEL_TARGETS) \
195	    )' in configuration '$(CONF_NAME)'\n"
196
197
198  # MAKEOVERRIDES is automatically set and propagated by Make to sub-Make calls.
199  # We need to clear it of the init-specific variables. The user-specified
200  # variables are explicitely propagated using $(USER_MAKE_VARS).
201  main: MAKEOVERRIDES :=
202
203  main: $(INIT_TARGETS) main-init
204        ifneq ($(SEQUENTIAL_TARGETS), )
205          # Don't touch build output dir since we might be cleaning. That means
206	  # no log wrapper.
207	  ( cd $(TOPDIR) && \
208	      $(MAKE) $(MAKE_ARGS) -j 1 -f make/Main.gmk $(USER_MAKE_VARS) \
209	      $(SEQUENTIAL_TARGETS) \
210	  )
211        endif
212        ifneq ($(PARALLEL_TARGETS), )
213	  $(call StartGlobalTimer)
214	  $(call PrepareSmartJavac)
215	  ( cd $(TOPDIR) && \
216	      $(BUILD_LOG_WRAPPER) $(MAKE) $(MAKE_ARGS) $(OUTPUT_SYNC_FLAG) \
217	      -j $(JOBS) -f make/Main.gmk $(USER_MAKE_VARS) \
218	      $(PARALLEL_TARGETS) \
219	  )
220	  $(call CleanupSmartJavac)
221	  $(call StopGlobalTimer)
222	  $(call ReportBuildTimes)
223        endif
224	$(BUILD_LOG_WRAPPER) $(PRINTF) "Finished building target(s) '$(strip \
225	    $(INIT_TARGETS) $(SEQUENTIAL_TARGETS) $(PARALLEL_TARGETS) \
226	    )' in configuration '$(CONF_NAME)'\n"
227
228  .PHONY: reconfigure main-init main
229endif
230