InitSupport.gmk revision 2518:459d61aa3b54
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25
26################################################################################
27# This file contains helper functions for Init.gmk.
28# It is divided in two parts, depending on if a SPEC is present or not
29# (HAS_SPEC is true or not).
30################################################################################
31
32ifndef _INITSUPPORT_GMK
33_INITSUPPORT_GMK := 1
34
35ifeq ($(HAS_SPEC),)
36
37  # Include the corresponding closed file, if present.
38  # Normal hook mechanism cannot be used since we have no SPEC.
39  -include $(topdir)/closed/make/InitSupport.gmk
40
41  ##############################################################################
42  # Helper functions for the initial part of Init.gmk, before the spec file is
43  # loaded. Most of these functions provide parsing and setting up make options
44  # from the command-line.
45  ##############################################################################
46
47  # Make control variables, handled by Init.gmk
48  INIT_CONTROL_VARIABLES += LOG CONF CONF_NAME SPEC JOBS TEST_JOBS CONF_CHECK \
49      COMPARE_BUILD JTREG GTEST
50
51  # All known make control variables
52  MAKE_CONTROL_VARIABLES := $(INIT_CONTROL_VARIABLES) TEST JDK_FILTER
53
54  # Define a simple reverse function.
55  # Should maybe move to MakeBase.gmk, but we can't include that file now.
56  reverse = \
57      $(if $(strip $(1)), $(call reverse, $(wordlist 2, $(words $(1)), $(1)))) \
58          $(firstword $(1))
59
60  # The variable MAKEOVERRIDES contains variable assignments from the command
61  # line, but in reverse order to what the user entered.
62  # The '\#' <=> '\ 'dance is needed to keep values with space in them connected.
63  COMMAND_LINE_VARIABLES := $(subst \#,\ , $(call reverse, $(subst \ ,\#,$(MAKEOVERRIDES))))
64
65  # A list like FOO="val1" BAR="val2" containing all user-supplied make
66  # variables that we should propagate.
67  # The '\#' <=> '\ 'dance is needed to keep values with space in them connected.
68  USER_MAKE_VARS := $(subst \#,\ , $(filter-out $(addsuffix =%, $(INIT_CONTROL_VARIABLES)), \
69      $(subst \ ,\#,$(MAKEOVERRIDES))))
70
71  # Setup information about available configurations, if any.
72  build_dir=$(topdir)/build
73  all_spec_files=$(wildcard $(build_dir)/*/spec.gmk)
74  # Extract the configuration names from the path
75  all_confs=$(patsubst %/spec.gmk, %, $(patsubst $(build_dir)/%, %, $(all_spec_files)))
76
77  # Check for unknown command-line variables
78  define CheckControlVariables
79    command_line_variables := $$(strip $$(foreach var, \
80        $$(subst \ ,_,$$(MAKEOVERRIDES)), \
81        $$(firstword $$(subst =, , $$(var)))))
82    unknown_command_line_variables := $$(strip \
83        $$(filter-out $$(MAKE_CONTROL_VARIABLES), $$(command_line_variables)))
84    ifneq ($$(unknown_command_line_variables), )
85      $$(info Note: Command line contains non-control variables:)
86      $$(foreach var, $$(unknown_command_line_variables), $$(info * $$(var)=$$($$(var))))
87      $$(info Make sure it is not mistyped, and that you intend to override this variable.)
88      $$(info 'make help' will list known control variables.)
89      $$(info )
90    endif
91  endef
92
93  # Check for deprecated ALT_ variables
94  define CheckDeprecatedEnvironment
95    defined_alt_variables := $$(filter ALT_%, $$(.VARIABLES))
96    ifneq ($$(defined_alt_variables), )
97      $$(info Warning: You have the following ALT_ variables set:)
98      $$(foreach var, $$(defined_alt_variables), $$(info * $$(var)=$$($$(var))))
99      $$(info ALT_ variables are deprecated, and may result in a failed build.)
100      $$(info Please clean your environment.)
101      $$(info )
102    endif
103  endef
104
105  # Check for invalid make flags like -j
106  define CheckInvalidMakeFlags
107    # This is a trick to get this rule to execute before any other rules
108    # MAKEFLAGS only indicate -j if read in a recipe (!)
109    $$(topdir)/make/Init.gmk: .FORCE
110	$$(if $$(findstring --jobserver, $$(MAKEFLAGS)), \
111	    $$(info Error: 'make -jN' is not supported, use 'make JOBS=N') \
112	    $$(error Cannot continue) \
113	)
114    .FORCE:
115    .PHONY: .FORCE
116  endef
117
118  # Check that the CONF_CHECK option is valid and set up handling
119  define ParseConfCheckOption
120    ifeq ($$(CONF_CHECK), )
121      # Default behavior is fail
122      CONF_CHECK := fail
123    else ifneq ($$(filter-out auto fail ignore, $$(CONF_CHECK)),)
124      $$(info Error: CONF_CHECK must be one of: auto, fail or ignore.)
125      $$(error Cannot continue)
126    endif
127  endef
128
129  # Look for a given option in the LOG variable, and if found, set a variable
130  # and remove the option from the LOG variable
131  # $1: The option to look for
132  # $2: The option to set to "true" if the option is found
133  define ParseLogOption
134    ifneq ($$(findstring $1, $$(LOG)),)
135      $2 := true
136      # COMMA is defined in spec.gmk, but that is not included yet
137      COMMA := ,
138      # First try to remove ",<option>" if it exists, otherwise just remove "<option>"
139      LOG_STRIPPED := $$(subst $1,, $$(subst $$(COMMA)$(strip $1),, $$(LOG)))
140      # We might have ended up with a leading comma. Remove it. Need override
141      # since LOG is set from the command line.
142      override LOG := $$(strip $$(patsubst $$(COMMA)%, %, $$(LOG_STRIPPED)))
143    endif
144  endef
145
146  define ParseLogLevel
147    # Catch old-style VERBOSE= command lines.
148    ifneq ($$(origin VERBOSE), undefined)
149      $$(info Error: VERBOSE is deprecated. Use LOG=<warn|info|debug|trace> instead.)
150      $$(error Cannot continue)
151    endif
152
153    # Setup logging according to LOG
154
155    # If the "nofile" argument is given, act on it and strip it away
156    $$(eval $$(call ParseLogOption, nofile, LOG_NOFILE))
157
158    # If the "cmdline" argument is given, act on it and strip it away
159    $$(eval $$(call ParseLogOption, cmdlines, LOG_CMDLINES))
160
161    LOG_LEVEL := $$(LOG)
162
163    ifeq ($$(LOG_LEVEL),)
164      # Set LOG to "warn" as default if not set
165      LOG_LEVEL := warn
166    endif
167
168    ifeq ($$(LOG_LEVEL), warn)
169      MAKE_LOG_FLAGS := -s
170    else ifeq ($$(LOG_LEVEL), info)
171      MAKE_LOG_FLAGS := -s
172    else ifeq ($$(LOG_LEVEL), debug)
173      MAKE_LOG_FLAGS :=
174    else ifeq ($$(LOG_LEVEL), trace)
175      MAKE_LOG_FLAGS :=
176    else
177      $$(info Error: LOG contains unknown option or log level: $$(LOG).)
178      $$(info LOG can be <level>[,<opt>[...]] where <opt> is nofile | cmdlines)
179      $$(info and <level> is warn | info | debug | trace)
180      $$(error Cannot continue)
181    endif
182  endef
183
184  define ParseConfAndSpec
185    ifneq ($$(origin SPEC), undefined)
186      # We have been given a SPEC, check that it works out properly
187      ifneq ($$(origin CONF), undefined)
188        # We also have a CONF argument. We can't have both.
189        $$(info Error: Cannot use CONF=$$(CONF) and SPEC=$$(SPEC) at the same time. Choose one.)
190        $$(error Cannot continue)
191      endif
192      ifneq ($$(origin CONF_NAME), undefined)
193        # We also have a CONF_NAME argument. We can't have both.
194        $$(info Error: Cannot use CONF_NAME=$$(CONF_NAME) and SPEC=$$(SPEC) at the same time. Choose one.)
195        $$(error Cannot continue)
196      endif
197      ifeq ($$(wildcard $$(SPEC)),)
198        $$(info Error: Cannot locate spec.gmk, given by SPEC=$$(SPEC).)
199        $$(error Cannot continue)
200      endif
201      ifeq ($$(filter /%, $$(SPEC)),)
202        # If given with relative path, make it absolute
203        SPECS := $$(CURDIR)/$$(strip $$(SPEC))
204      else
205        SPECS := $$(SPEC)
206      endif
207
208      # For now, unset this SPEC variable.
209      override SPEC :=
210    else
211      # Use spec.gmk files in the build output directory
212      ifeq ($$(all_spec_files),)
213        $$(info Error: No configurations found for $$(topdir).)
214        $$(info Please run 'bash configure' to create a configuration.)
215        $$(info )
216        $$(error Cannot continue)
217      endif
218
219      ifneq ($$(origin CONF_NAME), undefined)
220        ifneq ($$(origin CONF), undefined)
221          # We also have a CONF argument. We can't have both.
222          $$(info Error: Cannot use CONF=$$(CONF) and CONF_NAME=$$(CONF_NAME) at the same time. Choose one.)
223          $$(error Cannot continue)
224        endif
225        matching_conf := $$(strip $$(filter $$(CONF_NAME), $$(all_confs)))
226        ifeq ($$(matching_conf),)
227          $$(info Error: No configurations found matching CONF_NAME=$$(CONF_NAME).)
228          $$(info Available configurations in $$(build_dir):)
229          $$(foreach var, $$(all_confs), $$(info * $$(var)))
230          $$(error Cannot continue)
231        else ifneq ($$(words $$(matching_conf)), 1)
232          $$(info Error: Matching more than one configuration CONF_NAME=$$(CONF_NAME).)
233          $$(info Available configurations in $$(build_dir):)
234          $$(foreach var, $$(all_confs), $$(info * $$(var)))
235          $$(error Cannot continue)
236        else
237          $$(info Building configuration '$$(matching_conf)' (matching CONF_NAME=$$(CONF_NAME)))
238        endif
239        # Create a SPEC definition. This will contain the path to exactly one spec file.
240        SPECS := $$(build_dir)/$$(matching_conf)/spec.gmk
241      else ifneq ($$(origin CONF), undefined)
242        # User have given a CONF= argument.
243        ifeq ($$(CONF),)
244          # If given CONF=, match all configurations
245          matching_confs := $$(strip $$(all_confs))
246        else
247          # Otherwise select those that contain the given CONF string
248          matching_confs := $$(strip $$(foreach var, $$(all_confs), \
249              $$(if $$(findstring $$(CONF), $$(var)), $$(var))))
250        endif
251        ifeq ($$(matching_confs),)
252          $$(info Error: No configurations found matching CONF=$$(CONF).)
253          $$(info Available configurations in $$(build_dir):)
254          $$(foreach var, $$(all_confs), $$(info * $$(var)))
255          $$(error Cannot continue)
256        else
257          # Don't repeat this output on make restarts caused by including
258          # generated files.
259          ifeq ($$(MAKE_RESTARTS),)
260            ifeq ($$(words $$(matching_confs)), 1)
261              $$(info Building configuration '$$(matching_confs)' (matching CONF=$$(CONF)))
262            else
263              $$(info Building these configurations (matching CONF=$$(CONF)):)
264              $$(foreach var, $$(matching_confs), $$(info * $$(var)))
265            endif
266          endif
267        endif
268
269        # Create a SPEC definition. This will contain the path to one or more spec.gmk files.
270        SPECS := $$(addsuffix /spec.gmk, $$(addprefix $$(build_dir)/, $$(matching_confs)))
271      else
272        # No CONF or SPEC given, check the available configurations
273        ifneq ($$(words $$(all_spec_files)), 1)
274          $$(info Error: No CONF given, but more than one configuration found.)
275          $$(info Available configurations in $$(build_dir):)
276          $$(foreach var, $$(all_confs), $$(info * $$(var)))
277          $$(info Please retry building with CONF=<config pattern> (or SPEC=<spec file>).)
278          $$(info )
279          $$(error Cannot continue)
280        endif
281
282        # We found exactly one configuration, use it
283        SPECS := $$(strip $$(all_spec_files))
284      endif
285    endif
286  endef
287
288  # Extract main targets from Main.gmk using the spec provided in $2.
289  #
290  # Param 1: FORCE = force generation of main-targets.gmk or LAZY = do not force.
291  # Param 2: The SPEC file to use.
292  define DefineMainTargets
293
294    # We will start by making sure the main-targets.gmk file is removed, if
295    # make has not been restarted. By the -include, we will trigger the
296    # rule for generating the file (which is never there since we removed it),
297    # thus generating it fresh, and make will restart, incrementing the restart
298    # count.
299    main_targets_file := $$(dir $(strip $2))make-support/main-targets.gmk
300
301    ifeq ($$(MAKE_RESTARTS),)
302      # Only do this if make has not been restarted, and if we do not force it.
303      ifeq ($(strip $1), FORCE)
304        $$(shell rm -f $$(main_targets_file))
305      endif
306    endif
307
308    $$(main_targets_file):
309	@( cd $$(topdir) && \
310	$$(MAKE) $$(MAKE_LOG_FLAGS) -r -R -f $$(topdir)/make/Main.gmk \
311	    -I $$(topdir)/make/common SPEC=$(strip $2) NO_RECIPES=true \
312	    LOG_LEVEL=$$(LOG_LEVEL) \
313	    create-main-targets-include )
314
315    # Now include main-targets.gmk. This will define ALL_MAIN_TARGETS.
316    -include $$(main_targets_file)
317  endef
318
319  define PrintConfCheckFailed
320	@echo ' '
321	@echo "Please rerun configure! Easiest way to do this is by running"
322	@echo "'make reconfigure'."
323	@echo "This behavior may also be changed using CONF_CHECK=<ignore|auto>."
324	@echo ' '
325  endef
326
327else # $(HAS_SPEC)=true
328  ##############################################################################
329  # Helper functions for the 'main' target. These functions assume a single,
330  # proper and existing SPEC is included.
331  ##############################################################################
332
333  include $(SRC_ROOT)/make/common/MakeBase.gmk
334
335  # Define basic logging setup
336  BUILD_LOG := $(OUTPUT_ROOT)/build.log
337  BUILD_TRACE_LOG := $(OUTPUT_ROOT)/build-trace-time.log
338
339  BUILD_LOG_PIPE := > >($(TEE) -a $(BUILD_LOG)) 2> >($(TEE) -a $(BUILD_LOG) >&2) && wait
340
341  # Sanity check the spec file, so it matches this source code
342  define CheckSpecSanity
343    ifneq ($$(ACTUAL_TOPDIR), $$(TOPDIR))
344      ifneq ($$(ACTUAL_TOPDIR), $$(ORIGINAL_TOPDIR))
345        ifneq ($$(ACTUAL_TOPDIR), $$(CANONICAL_TOPDIR))
346          $$(info Error: SPEC mismatch! Current working directory)
347          $$(info $$(ACTUAL_TOPDIR))
348          $$(info does not match either TOPDIR, ORIGINAL_TOPDIR or CANONICAL_TOPDIR)
349          $$(info $$(TOPDIR))
350          $$(info $$(ORIGINAL_TOPDIR))
351          $$(info $$(CANONICAL_TOPDIR))
352          $$(error Cannot continue)
353        endif
354      endif
355    endif
356  endef
357
358  # Parse COMPARE_BUILD into COMPARE_BUILD_*
359  # Syntax: COMPARE_BUILD=CONF=<configure options>:PATCH=<patch file>:
360  #         MAKE=<make targets>:COMP_OPTS=<compare script options>:
361  #         COMP_DIR=<compare script base dir>|<default>:
362  #         FAIL=<bool>
363  # If neither CONF or PATCH is given, assume <default> means CONF if it
364  # begins with "--", otherwise assume it means PATCH.
365  # MAKE and COMP_OPTS can only be used with CONF and/or PATCH specified.
366  # If any value contains "+", it will be replaced by space.
367  # FAIL can be set to false to have the return value of compare be ignored.
368  define ParseCompareBuild
369    ifneq ($$(COMPARE_BUILD), )
370      COMPARE_BUILD_OUTPUT_ROOT := $(TOPDIR)/build/compare-build/$(CONF_NAME)
371      COMPARE_BUILD_FAIL := true
372
373      ifneq ($$(findstring :, $$(COMPARE_BUILD)), )
374        $$(foreach part, $$(subst :, , $$(COMPARE_BUILD)), \
375          $$(if $$(filter PATCH=%, $$(part)), \
376            $$(eval COMPARE_BUILD_PATCH=$$(strip $$(patsubst PATCH=%, %, $$(part)))) \
377          ) \
378          $$(if $$(filter CONF=%, $$(part)), \
379            $$(eval COMPARE_BUILD_CONF=$$(strip $$(subst +, , $$(patsubst CONF=%, %, $$(part))))) \
380          ) \
381          $$(if $$(filter MAKE=%, $$(part)), \
382            $$(eval COMPARE_BUILD_MAKE=$$(strip $$(subst +, , $$(patsubst MAKE=%, %, $$(part))))) \
383          ) \
384          $$(if $$(filter COMP_OPTS=%, $$(part)), \
385            $$(eval COMPARE_BUILD_COMP_OPTS=$$(strip $$(subst +, , $$(patsubst COMP_OPTS=%, %, $$(part))))) \
386          ) \
387          $$(if $$(filter COMP_DIR=%, $$(part)), \
388            $$(eval COMPARE_BUILD_COMP_DIR=$$(strip $$(subst +, , $$(patsubst COMP_DIR=%, %, $$(part))))) \
389          ) \
390          $$(if $$(filter FAIL=%, $$(part)), \
391            $$(eval COMPARE_BUILD_FAIL=$$(strip $$(subst +, , $$(patsubst FAIL=%, %, $$(part))))) \
392          ) \
393        )
394      else
395        # Separate handling for single field case, to allow for spaces in values.
396        ifneq ($$(filter PATCH=%, $$(COMPARE_BUILD)), )
397          COMPARE_BUILD_PATCH=$$(strip $$(patsubst PATCH=%, %, $$(COMPARE_BUILD)))
398        else ifneq ($$(filter CONF=%, $$(COMPARE_BUILD)), )
399          COMPARE_BUILD_CONF=$$(strip $$(subst +, , $$(patsubst CONF=%, %, $$(COMPARE_BUILD))))
400        else ifneq ($$(filter --%, $$(COMPARE_BUILD)), )
401          # Assume CONF if value begins with --
402          COMPARE_BUILD_CONF=$$(strip $$(subst +, , $$(COMPARE_BUILD)))
403        else
404          # Otherwise assume patch file
405          COMPARE_BUILD_PATCH=$$(strip $$(COMPARE_BUILD))
406        endif
407      endif
408      ifneq ($$(COMPARE_BUILD_PATCH), )
409        ifneq ($$(wildcard $$(TOPDIR)/$$(COMPARE_BUILD_PATCH)), )
410          # Assume relative path, if file exists
411          COMPARE_BUILD_PATCH := $$(wildcard $$(TOPDIR)/$$(COMPARE_BUILD_PATCH))
412        else ifeq ($$(wildcard $$(COMPARE_BUILD_PATCH)), )
413          $$(error Patch file $$(COMPARE_BUILD_PATCH) does not exist)
414        endif
415      endif
416      ifneq ($$(COMPARE_BUILD_FAIL), true)
417        COMPARE_BUILD_IGNORE_RESULT := || true
418      endif
419    endif
420  endef
421
422  # Prepare for a comparison rebuild
423  define PrepareCompareBuild
424	$(ECHO) "Preparing for comparison rebuild"
425        # Apply patch, if any
426	$(if $(COMPARE_BUILD_PATCH), $(PATCH) -p1 < $(COMPARE_BUILD_PATCH))
427        # Move the first build away temporarily
428	$(RM) -r $(TOPDIR)/build/.compare-build-temp
429	$(MKDIR) -p $(TOPDIR)/build/.compare-build-temp
430	$(MV) $(OUTPUT_ROOT) $(TOPDIR)/build/.compare-build-temp
431        # Restore an old compare-build, or create a new compare-build directory.
432	if test -d $(COMPARE_BUILD_OUTPUT_ROOT); then \
433	  $(MV) $(COMPARE_BUILD_OUTPUT_ROOT) $(OUTPUT_ROOT); \
434	else \
435	  $(MKDIR) -p $(OUTPUT_ROOT); \
436	fi
437        # Re-run configure with the same arguments (and possibly some additional),
438        # must be done after patching.
439	( cd $(OUTPUT_ROOT) && PATH="$(ORIGINAL_PATH)" \
440	    $(BASH) $(TOPDIR)/configure $(CONFIGURE_COMMAND_LINE) $(COMPARE_BUILD_CONF))
441  endef
442
443  # Cleanup after a compare build
444  define CleanupCompareBuild
445        # If running with a COMPARE_BUILD patch, reverse-apply it
446	$(if $(COMPARE_BUILD_PATCH), $(PATCH) -R -p1 < $(COMPARE_BUILD_PATCH))
447        # Move this build away and restore the original build
448	$(MKDIR) -p $(TOPDIR)/build/compare-build
449	$(MV) $(OUTPUT_ROOT) $(COMPARE_BUILD_OUTPUT_ROOT)
450	$(MV) $(TOPDIR)/build/.compare-build-temp/$(CONF_NAME) $(OUTPUT_ROOT)
451	$(RM) -r $(TOPDIR)/build/.compare-build-temp
452  endef
453
454  # Do the actual comparison of two builds
455  define CompareBuildDoComparison
456        # Compare first and second build. Ignore any error code from compare.sh.
457	$(ECHO) "Comparing between comparison rebuild (this/new) and baseline (other/old)"
458	$(if $(COMPARE_BUILD_COMP_DIR), \
459	  +(cd $(COMPARE_BUILD_OUTPUT_ROOT) && ./compare.sh $(COMPARE_BUILD_COMP_OPTS) \
460	      -2dirs $(COMPARE_BUILD_OUTPUT_ROOT)/$(COMPARE_BUILD_COMP_DIR) \
461	      $(OUTPUT_ROOT)/$(COMPARE_BUILD_COMP_DIR) $(COMPARE_BUILD_IGNORE_RESULT)), \
462	  +(cd $(COMPARE_BUILD_OUTPUT_ROOT) && ./compare.sh $(COMPARE_BUILD_COMP_OPTS) \
463	      -o $(OUTPUT_ROOT) $(COMPARE_BUILD_IGNORE_RESULT)) \
464	)
465  endef
466
467  define PrintFailureReports
468	$(if $(wildcard $(MAKESUPPORT_OUTPUTDIR)/failure-logs/*.log), \
469	  $(PRINTF) "\n=== Output from failing command(s) repeated here ===\n" $(NEWLINE) \
470	  $(foreach logfile, $(sort $(wildcard $(MAKESUPPORT_OUTPUTDIR)/failure-logs/*.log)), \
471	      $(PRINTF) "* For target $(notdir $(basename $(logfile))):\n" $(NEWLINE) \
472	      ($(GREP) -v -e "^Note: including file:" <  $(logfile) || true) | $(HEAD) -n 12 $(NEWLINE) \
473	      if test `$(WC) -l < $(logfile)` -gt 12; then \
474	        $(ECHO) "   ... (rest of output omitted)" ; \
475	      fi $(NEWLINE) \
476	  ) \
477	  $(PRINTF) "\n* All command lines available in $(MAKESUPPORT_OUTPUTDIR)/failure-logs.\n" $(NEWLINE) \
478	  $(PRINTF) "=== End of repeated output ===\n" \
479	)
480  endef
481
482  define PrintBuildLogFailures
483	if $(GREP) -q "recipe for target .* failed" $(BUILD_LOG) 2> /dev/null; then  \
484	  $(PRINTF) "\n=== Make failed targets repeated here ===\n" ; \
485	  $(GREP) "recipe for target .* failed" $(BUILD_LOG) ; \
486	  $(PRINTF) "=== End of repeated output ===\n" ; \
487	  $(PRINTF) "\nHint: Try searching the build log for the name of the first failed target.\n" ; \
488	else \
489	  $(PRINTF) "\nNo indication of failed target found.\n" ; \
490	  $(PRINTF) "Hint: Try searching the build log for '] Error'.\n" ; \
491	fi
492  endef
493
494  define RotateLogFiles
495	$(RM) $(BUILD_LOG).old 2> /dev/null && \
496	$(MV) $(BUILD_LOG) $(BUILD_LOG).old 2> /dev/null || true
497	$(if $(findstring trace, $(LOG_LEVEL)), \
498	  $(RM) $(BUILD_TRACE_LOG).old 2> /dev/null && \
499	  $(MV) $(BUILD_TRACE_LOG) $(BUILD_TRACE_LOG).old 2> /dev/null || true \
500	)
501  endef
502
503  define PrepareFailureLogs
504	$(RM) -r $(MAKESUPPORT_OUTPUTDIR)/failure-logs 2> /dev/null && \
505	$(MKDIR) -p $(MAKESUPPORT_OUTPUTDIR)/failure-logs
506	$(RM) $(MAKESUPPORT_OUTPUTDIR)/exit-with-error 2> /dev/null
507  endef
508
509  # Remove any javac server logs and port files. This
510  # prevents a new make run to reuse the previous servers.
511  define PrepareSmartJavac
512	$(if $(SJAVAC_SERVER_DIR), \
513	  $(RM) -r $(SJAVAC_SERVER_DIR) 2> /dev/null && \
514	  $(MKDIR) -p $(SJAVAC_SERVER_DIR) \
515	)
516  endef
517
518  define CleanupSmartJavac
519	[ -f $(SJAVAC_SERVER_DIR)/server.port ] && $(ECHO) Stopping sjavac server && \
520	    $(TOUCH) $(SJAVAC_SERVER_DIR)/server.port.stop; true
521  endef
522
523  ifeq ($(OPENJDK_BUILD_OS), windows)
524    # On windows we need to synchronize with the javac server to be able to
525    # move or remove the build output directory. Since we have no proper
526    # synchronization process, wait for a while and hope it helps. This is only
527    # used by build comparisons.
528    define WaitForSmartJavacFinish
529	$(if $(SJAVAC_SERVER_DIR), \
530	  sleep 5\
531	)
532    endef
533  else
534    define WaitForSmartJavacFinish
535    endef
536  endif
537
538  define StartGlobalTimer
539	$(RM) -r $(BUILDTIMESDIR) 2> /dev/null && \
540	$(MKDIR) -p $(BUILDTIMESDIR) && \
541	$(call RecordStartTime,TOTAL)
542  endef
543
544  define StopGlobalTimer
545	$(call RecordEndTime,TOTAL)
546  endef
547
548  # Find all build_time_* files and print their contents in a list sorted
549  # on the name of the sub repository.
550  define ReportBuildTimes
551	$(PRINTF) $(LOG_INFO) -- \
552	    "----- Build times -------\nStart %s\nEnd   %s\n%s\n%s\n-------------------------\n" \
553	    "`$(CAT) $(BUILDTIMESDIR)/build_time_start_TOTAL_human_readable`" \
554	    "`$(CAT) $(BUILDTIMESDIR)/build_time_end_TOTAL_human_readable`" \
555	    "`$(LS) $(BUILDTIMESDIR)/build_time_diff_* | $(GREP) -v _TOTAL | \
556	    $(XARGS) $(CAT) | $(SORT) -k 2`" \
557	    "`$(CAT) $(BUILDTIMESDIR)/build_time_diff_TOTAL`" \
558	    $(BUILD_LOG_PIPE)
559  endef
560
561endif # HAS_SPEC
562
563endif # _INITSUPPORT_GMK
564