MakeBase.gmk revision 1704:2396a16033e1
1#
2# Copyright (c) 2011, 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#
28# Setup common utility functions.
29#
30################################################################
31
32ifndef _MAKEBASE_GMK
33_MAKEBASE_GMK := 1
34
35ifeq ($(wildcard $(SPEC)),)
36  $(error MakeBase.gmk needs SPEC set to a proper spec.gmk)
37endif
38
39# By defining this pseudo target, make will automatically remove targets
40# if their recipe fails so that a rebuild is automatically triggered on the
41# next make invocation.
42.DELETE_ON_ERROR:
43
44################################################################################
45# Definitions for special characters
46################################################################################
47
48# When calling macros, the spaces between arguments are
49# often semantically important! Sometimes we need to subst
50# spaces and commas, therefore we need the following macros.
51X:=
52SPACE:=$(X) $(X)
53COMMA:=,
54DOLLAR:=$$
55HASH:=\#
56LEFT_PAREN:=(
57RIGHT_PAREN:=)
58SQUOTE:='
59#'
60DQUOTE:="
61#"
62define NEWLINE
63
64
65endef
66
67# In GNU Make 4.0 and higher, there is a file function for writing to files.
68ifeq (4.0, $(firstword $(sort 4.0 $(MAKE_VERSION))))
69  HAS_FILE_FUNCTION := true
70endif
71
72##############################
73# Functions
74##############################
75
76### Debug functions
77
78# Prints the name and value of a variable
79PrintVar = \
80    $(info $(strip $1) >$($(strip $1))<)
81
82### Functions for timers
83
84# Store the build times in this directory.
85BUILDTIMESDIR=$(OUTPUT_ROOT)/make-support/build-times
86
87# Record starting time for build of a sub repository.
88define RecordStartTime
89	$(MKDIR) -p $(BUILDTIMESDIR)
90	$(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)
91	$(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)_human_readable
92endef
93
94# Record ending time and calculate the difference and store it in a
95# easy to read format. Handles builds that cross midnight. Expects
96# that a build will never take 24 hours or more.
97define RecordEndTime
98	$(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)
99	$(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)_human_readable
100	$(ECHO) `$(CAT) $(BUILDTIMESDIR)/build_time_start_$(strip $1)` `$(CAT) $(BUILDTIMESDIR)/build_time_end_$(strip $1)` $1 | \
101	    $(NAWK) '{ F=$$7; T=$$14; if (F > T) { T+=3600*24 }; D=T-F; H=int(D/3600); \
102	    M=int((D-H*3600)/60); S=D-H*3600-M*60; printf("%02d:%02d:%02d %s\n",H,M,S,$$15); }' \
103	    > $(BUILDTIMESDIR)/build_time_diff_$(strip $1)
104endef
105
106# Hook to be called when starting to execute a top-level target
107define TargetEnter
108	$(PRINTF) "## Starting $(patsubst %-only,%,$@)\n"
109	$(call RecordStartTime,$(patsubst %-only,%,$@))
110endef
111
112# Hook to be called when finish executing a top-level target
113define TargetExit
114	$(call RecordEndTime,$(patsubst %-only,%,$@))
115	$(PRINTF) "## Finished $(patsubst %-only,%,$@) (build time %s)\n\n" \
116	    "`$(CAT) $(BUILDTIMESDIR)/build_time_diff_$(patsubst %-only,%,$@) | $(CUT) -f 1 -d ' '`"
117endef
118
119################################################################################
120# This macro translates $ into \$ to protect the $ from expansion in the shell.
121# To make this macro resilient against already escaped strings, first remove
122# any present escapes before escaping so that no double escapes are added.
123EscapeDollar = $(subst $$,\$$,$(subst \$$,$$,$(strip $1)))
124
125################################################################################
126# This macro translates $ into $$ to protect the string from make itself.
127DoubleDollar = $(subst $$,$$$$,$(strip $1))
128
129################################################################################
130# ListPathsSafely can be used to print command parameters to a file. This is
131# typically done if the command line lenght risk being too long for the
132# OS/shell. In later make versions, the file function can be used for this
133# purpose. For earlier versions, a more complex implementation is provided.
134#
135# The function ListPathsSafely can be called either directly or, more commonly
136# from a recipe line. If called from a recipe, it will be executed in the
137# evaluation phase of that recipe, which means that it will write to the file
138# before any other line in the recipe has been run.
139ifeq ($(HAS_FILE_FUNCTION), true)
140  # Param 1 - Name of variable containing paths/arguments to output
141  # Param 2 - File to print to
142  # Param 3 - Set to true to append to file instead of overwriting
143  define ListPathsSafely
144    $$(call MakeDir, $$(dir $$(strip $2)))
145    $$(file $$(if $$(filter true, $$(strip $3)),>>,>) \
146        $$(strip $2),$$(subst $$(SPACE),$$(NEWLINE),$$(strip $$($$(strip $1)))))
147  endef
148
149else # HAS_FILE_FUNCTION
150
151  $(eval compress_paths = \
152      $(strip $(shell $(CAT) $(SRC_ROOT)/make/common/support/ListPathsSafely-pre-compress.incl)))
153  compress_paths += \
154$(subst $(SRC_ROOT),X97,\
155$(subst $(OUTPUT_ROOT),X98,\
156$(subst X,X00,\
157      $(subst $(SPACE),\n,$(strip $1)))))
158  $(eval compress_paths += \
159      $(strip $(shell $(CAT) $(SRC_ROOT)/make/common/support/ListPathsSafely-post-compress.incl)))
160
161  decompress_paths=$(SED) -f $(SRC_ROOT)/make/common/support/ListPathsSafely-uncompress.sed \
162      -e 's|X99|\\n|g' \
163    -e 's|X98|$(OUTPUT_ROOT)|g' -e 's|X97|$(SRC_ROOT)|g' \
164      -e 's|X00|X|g'
165
166  ListPathsSafely_IfPrintf = \
167      $(if $(word $3,$($(strip $1))), \
168          $(shell $(PRINTF) -- "$(strip $(call EscapeDollar, \
169              $(call compress_paths, $(wordlist $3,$4,$($(strip $1))))))\n" \
170              | $(decompress_paths) >> $2))
171
172  # Param 1 - Name of variable containing paths/arguments to output
173  # Param 2 - File to print to
174  # Param 3 - Set to true to append to file instead of overwriting
175define ListPathsSafely
176  ifneq (,$$(word 10001,$$($1)))
177    $$(error Cannot list safely more than 10000 paths. $1 has $$(words $$($1)) paths!)
178  endif
179    $$(call MakeDir, $$(dir $2))
180    ifneq ($$(strip $3), true)
181      $$(shell $(RM) $$(strip $2))
182    endif
183
184    $$(call ListPathsSafely_IfPrintf,$1,$2,1,250)
185    $$(call ListPathsSafely_IfPrintf,$1,$2,251,500)
186    $$(call ListPathsSafely_IfPrintf,$1,$2,501,750)
187    $$(call ListPathsSafely_IfPrintf,$1,$2,751,1000)
188
189    $$(call ListPathsSafely_IfPrintf,$1,$2,1001,1250)
190    $$(call ListPathsSafely_IfPrintf,$1,$2,1251,1500)
191    $$(call ListPathsSafely_IfPrintf,$1,$2,1501,1750)
192    $$(call ListPathsSafely_IfPrintf,$1,$2,1751,2000)
193
194    $$(call ListPathsSafely_IfPrintf,$1,$2,2001,2250)
195    $$(call ListPathsSafely_IfPrintf,$1,$2,2251,2500)
196    $$(call ListPathsSafely_IfPrintf,$1,$2,2501,2750)
197    $$(call ListPathsSafely_IfPrintf,$1,$2,2751,3000)
198
199    $$(call ListPathsSafely_IfPrintf,$1,$2,3001,3250)
200    $$(call ListPathsSafely_IfPrintf,$1,$2,3251,3500)
201    $$(call ListPathsSafely_IfPrintf,$1,$2,3501,3750)
202    $$(call ListPathsSafely_IfPrintf,$1,$2,3751,4000)
203
204    $$(call ListPathsSafely_IfPrintf,$1,$2,4001,4250)
205    $$(call ListPathsSafely_IfPrintf,$1,$2,4251,4500)
206    $$(call ListPathsSafely_IfPrintf,$1,$2,4501,4750)
207    $$(call ListPathsSafely_IfPrintf,$1,$2,4751,5000)
208
209    $$(call ListPathsSafely_IfPrintf,$1,$2,5001,5250)
210    $$(call ListPathsSafely_IfPrintf,$1,$2,5251,5500)
211    $$(call ListPathsSafely_IfPrintf,$1,$2,5501,5750)
212    $$(call ListPathsSafely_IfPrintf,$1,$2,5751,6000)
213
214    $$(call ListPathsSafely_IfPrintf,$1,$2,6001,6250)
215    $$(call ListPathsSafely_IfPrintf,$1,$2,6251,6500)
216    $$(call ListPathsSafely_IfPrintf,$1,$2,6501,6750)
217    $$(call ListPathsSafely_IfPrintf,$1,$2,6751,7000)
218
219    $$(call ListPathsSafely_IfPrintf,$1,$2,7001,7250)
220    $$(call ListPathsSafely_IfPrintf,$1,$2,7251,7500)
221    $$(call ListPathsSafely_IfPrintf,$1,$2,7501,7750)
222    $$(call ListPathsSafely_IfPrintf,$1,$2,7751,8000)
223
224    $$(call ListPathsSafely_IfPrintf,$1,$2,8001,8250)
225    $$(call ListPathsSafely_IfPrintf,$1,$2,8251,8500)
226    $$(call ListPathsSafely_IfPrintf,$1,$2,8501,8750)
227    $$(call ListPathsSafely_IfPrintf,$1,$2,8751,9000)
228
229    $$(call ListPathsSafely_IfPrintf,$1,$2,9001,9250)
230    $$(call ListPathsSafely_IfPrintf,$1,$2,9251,9500)
231    $$(call ListPathsSafely_IfPrintf,$1,$2,9501,9750)
232    $$(call ListPathsSafely_IfPrintf,$1,$2,9751,10000)
233endef
234endif # HAS_FILE_FUNCTION
235
236# The source tips can come from the Mercurial repository, or in the files
237# $(HGTIP_FILENAME) which contains the tip but is also positioned in the same
238# directory as the original $(HGDIR) directory.
239# These should not be := assignments, only used from the root Makefile.
240HG_VERSION = $(shell $(HG) version 2> /dev/null)
241HG_DIRECTORY=.hg
242HGTIP_FILENAME=.hgtip
243HG_SEARCH = ./REPO ./*/REPO ./*/*/REPO ./*/*/*/REPO
244REPO_LIST = $(patsubst ./%,%,$(patsubst %/,%,$(sort $(dir \
245    $(shell $(CD) $(SRC_ROOT) ; \
246        $(LS) -d $(HG_SEARCH:%/REPO=%/$(HG_DIRECTORY)) \
247            $(HG_SEARCH:%/REPO=%/$(HGTIP_FILENAME)) \
248        2> /dev/null)))))
249
250# Emit the repo:tip pairs to $@
251define GetSourceTips
252	$(CD) $(SRC_ROOT) ; \
253	for i in $(REPO_LIST) IGNORE ; do \
254	  if [ "$${i}" = "IGNORE" ] ; then \
255	    continue; \
256	  elif [ -d $${i}/$(HG_DIRECTORY) -a "$(HG_VERSION)" != "" ] ; then \
257	    $(PRINTF) " %s:%s" \
258	        "$${i}" `$(HG) tip --repository $${i} --template '{node|short}\n'` ; \
259	  elif [ -f $${i}/$(HGTIP_FILENAME) ] ; then \
260	    $(PRINTF) " %s:%s" \
261	        "$${i}" `$(CAT) $${i}/$(HGTIP_FILENAME)` ; \
262	  fi; \
263	done >> $@
264	$(PRINTF) "\n" >> $@
265endef
266
267# Create the HGTIP_FILENAME file. Called from jdk/make/closed/bundles.gmk
268define CreateHgTip
269	$(HG) tip --repository $1 --template '{node|short}\n' > $1/$(HGTIP_FILENAME); \
270	$(ECHO) $1/$(HGTIP_FILENAME)
271endef
272
273define SetupLogging
274  ifeq ($$(LOG_LEVEL), trace)
275    # Shell redefinition trick inspired by http://www.cmcrossroads.com/ask-mr-make/6535-tracing-rule-execution-in-gnu-make
276    # For each target executed, will print
277    # Building <TARGET> (from <FIRST PREREQUISITE>) (<ALL NEWER PREREQUISITES> newer)
278    # but with a limit of 20 on <ALL NEWER PREREQUISITES>, to avoid cluttering logs too much
279    # (and causing a crash on Cygwin).
280    # Default shell seems to always be /bin/sh. Must override with bash to get this to work on Solaris.
281    # Only use time if it's GNU time which supports format and output file.
282    WRAPPER_SHELL := $$(BASH) $$(SRC_ROOT)/common/bin/shell-tracer.sh $$(if $$(findstring yes,$$(IS_GNU_TIME)),$$(TIME),-) $$(OUTPUT_ROOT)/build-trace-time.log $$(SHELL)
283    SHELL := $$(warning $$(if $$@,Building $$@,Running shell command) $$(if $$<, (from $$<))$$(if $$?, ($$(wordlist 1, 20, $$?) $$(if $$(wordlist 21, 22, $$?), ... [in total $$(words $$?) files]) newer)))$$(WRAPPER_SHELL)
284  endif
285  # Never remove warning messages; this is just for completeness
286  LOG_WARN :=
287  ifneq ($$(findstring $$(LOG_LEVEL), info debug trace),)
288    LOG_INFO :=
289  else
290    LOG_INFO := > /dev/null
291  endif
292  ifneq ($$(findstring $$(LOG_LEVEL), debug trace),)
293    LOG_DEBUG :=
294  else
295    LOG_DEBUG := > /dev/null
296  endif
297  ifneq ($$(findstring $$(LOG_LEVEL), trace),)
298    LOG_TRACE :=
299  else
300    LOG_TRACE := > /dev/null
301  endif
302endef
303
304# Make sure logging is setup for everyone that includes MakeBase.gmk.
305$(eval $(call SetupLogging))
306
307################################################################################
308# Creates a sequence of increasing numbers (inclusive).
309# Param 1 - starting number
310# Param 2 - ending number
311sequence = \
312    $(wordlist $1, $2, $(strip \
313        $(eval SEQUENCE_COUNT :=) \
314        $(call _sequence-do,$(strip $2))))
315
316_sequence-do = \
317    $(if $(word $1, $(SEQUENCE_COUNT)),, \
318      $(eval SEQUENCE_COUNT += .) \
319      $(words $(SEQUENCE_COUNT)) \
320      $(call _sequence-do,$1))
321
322################################################################################
323
324MAX_PARAMS := 30
325PARAM_SEQUENCE := $(call sequence, 2, $(MAX_PARAMS))
326
327# Template for creating a macro taking named parameters. To use it, assign the
328# template to a variable with the name you want for your macro, using '='
329# assignment. Then define a macro body with the suffix "Body". The Body macro
330# should take 1 parameter which should be a unique string for that invocation
331# of the macro.
332# Ex:
333# SetupFoo = $(NamedParamsMacroTemplate)
334# define SetupFooBody
335#   # do something
336#   # access parameters as $$($1_BAR)
337# endef
338# Call it like this
339# $(eval $(call SetupFoo, BUILD_SOMETHING, \
340#     BAR := some parameter value, \
341# ))
342define NamedParamsMacroTemplate
343  $(if $($(MAX_PARAMS)),$(error Internal makefile error: \
344      Too many named arguments to macro, please update MAX_PARAMS in MakeBase.gmk))
345  # Iterate over 2 3 4... and evaluate the named parameters with $1_ as prefix
346  $(foreach i,$(PARAM_SEQUENCE), $(if $(strip $($i)),\
347    $(strip $1)_$(strip $($i)))$(NEWLINE))
348  # Debug print all named parameter names and values
349  $(if $(findstring $(LOG_LEVEL),debug trace), \
350    $(info $0 $(strip $1) $(foreach i,$(PARAM_SEQUENCE), \
351      $(if $(strip $($i)),$(NEWLINE) $(strip [$i] $(if $(filter $(LOG_LEVEL), trace), \
352        $($i), $(wordlist 1, 20, $($(i))) $(if $(word 21, $($(i))), ...)))))))
353
354  $(if $(DEBUG_$(strip $1)),
355    $(info -------- <<< Begin expansion of $(strip $1)) \
356    $(info $(call $(0)Body,$(strip $1))) \
357    $(info -------- >>> End expansion of $(strip $1)) \
358  )
359
360  $(call $(0)Body,$(strip $1))
361endef
362
363################################################################################
364# Make directory without forking mkdir if not needed
365MakeDir = \
366    $(strip $(if $(subst $(wildcard $1 $2 $3 $4 $5 $6 $7 $8 $9),,$(strip $1 $2 $3 $4 $5 $6 $7 $8 $9)),\
367      $(shell $(MKDIR) -p $1 $2 $3 $4 $5 $6 $7 $8 $9)))
368
369################################################################################
370# Assign a variable only if it is empty
371# Param 1 - Variable to assign
372# Param 2 - Value to assign
373SetIfEmpty = \
374    $(if $($(strip $1)),,$(eval $(strip $1) := $2))
375
376################################################################################
377
378ifeq ($(OPENJDK_TARGET_OS),solaris)
379  # On Solaris, if the target is a symlink and exists, cp won't overwrite.
380  # Cp has to operate in recursive mode to allow for -P flag, to preserve soft links. If the
381  # name of the target file differs from the source file, rename after copy.
382  # If the source and target parent directories are the same, recursive copy doesn't work
383  # so we fall back on regular copy, which isn't preserving symlinks.
384  define install-file
385	$(MKDIR) -p '$(@D)'
386	$(RM) '$@'
387	if [ "$(@D)" != "$(<D)" ]; then \
388	  $(CP) -f -r -P '$<' '$(@D)'; \
389	  if [ "$(@F)" != "$(<F)" ]; then \
390	    $(MV) '$(@D)/$(<F)' '$@'; \
391	  fi; \
392	else \
393	  if [ -L '$<' ]; then \
394	    $(ECHO) "Source file is a symlink and target is in the same directory: $< $@" ; \
395	    exit 1; \
396	  fi; \
397	  $(CP) -f '$<' '$@'; \
398	fi
399  endef
400else ifeq ($(OPENJDK_TARGET_OS),macosx)
401  # On mac, extended attributes sometimes creep into the source files, which may later
402  # cause the creation of ._* files which confuses testing. Clear these with xattr if
403  # set. Some files get their write permissions removed after being copied to the
404  # output dir. When these are copied again to images, xattr would fail. By only clearing
405  # attributes when they are present, failing on this is avoided.
406  define install-file
407	$(MKDIR) -p '$(@D)'
408	$(CP) -fRP '$<' '$@'
409	if [ -n "`$(XATTR) -l '$@'`" ]; then $(XATTR) -c '$@'; fi
410  endef
411else
412  # Running mkdir and cp in the same shell speeds up copy intensive tasks in Cygwin
413  # significantly.
414  define install-file
415	$(MKDIR) -p '$(@D)' && $(CP) -fP '$<' '$@'
416  endef
417endif
418
419################################################################################
420# Filter out duplicate sub strings while preserving order. Keeps the first occurance.
421uniq = \
422    $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
423
424# Returns all whitespace-separated words in $2 where at least one of the
425# whitespace-separated words in $1 is a substring.
426containing = \
427    $(strip \
428        $(foreach v,$(strip $2),\
429          $(call uniq,$(foreach p,$(strip $1),$(if $(findstring $p,$v),$v)))))
430
431# Returns all whitespace-separated words in $2 where none of the
432# whitespace-separated words in $1 is a substring.
433not-containing = \
434    $(strip $(filter-out $(call containing,$1,$2),$2))
435
436# Return a list of all string elements that are duplicated in $1.
437dups = \
438    $(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \
439        $(words $(filter $v, $1))), $v)))
440
441# String equals
442equals = \
443    $(and $(findstring $(strip $1),$(strip $2)),\
444        $(findstring $(strip $2),$(strip $1)))
445
446# Remove a whole list of prefixes
447# $1 - List of prefixes
448# $2 - List of elements to process
449remove-prefixes = \
450    $(strip $(if $1,$(patsubst $(firstword $1)%,%,\
451      $(call remove-prefixes,$(filter-out $(firstword $1),$1),$2)),$2))
452
453################################################################################
454
455ifneq ($(DISABLE_CACHE_FIND), true)
456  # In Cygwin, finds are very costly, both because of expensive forks and because
457  # of bad file system caching. Find is used extensively in $(shell) commands to
458  # find source files. This makes rerunning make with no or few changes rather
459  # expensive. To speed this up, these two macros are used to cache the results
460  # of simple find commands for reuse.
461  #
462  # Runs a find and stores both the directories where it was run and the results.
463  # This macro can be called multiple times to add to the cache. Only finds files
464  # with no filters.
465  #
466  # Needs to be called with $(eval )
467  #
468  # Even if the performance benifit is negligible on other platforms, keep the
469  # functionality active unless explicitly disabled to exercise it more.
470  #
471  # Initialize FIND_CACHE_DIRS with := to make it a non recursively-expanded variable
472  FIND_CACHE_DIRS :=
473  # Param 1 - Dirs to find in
474  # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
475  define FillCacheFind
476    # Filter out already cached dirs. The - is needed when FIND_CACHE_DIRS is empty
477    # since filter out will then return empty.
478    FIND_CACHE_NEW_DIRS := $$(filter-out $$(addsuffix /%,\
479        - $(FIND_CACHE_DIRS)) $(FIND_CACHE_DIRS), $1)
480    ifneq ($$(FIND_CACHE_NEW_DIRS), )
481      # Remove any trailing slash from dirs in the cache dir list
482      FIND_CACHE_DIRS += $$(patsubst %/,%, $$(FIND_CACHE_NEW_DIRS))
483      FIND_CACHE := $$(sort $$(FIND_CACHE) $$(shell $(FIND) $$(FIND_CACHE_NEW_DIRS) \( -type f -o -type l \) $2))
484    endif
485  endef
486
487  # Mimics find by looking in the cache if all of the directories have been cached.
488  # Otherwise reverts to shell find. This is safe to call on all platforms, even if
489  # cache is deactivated.
490  #
491  # $1 can be either a directory or a file. If it's a directory, make
492  # sure we have exactly one trailing slash before the wildcard.
493  # The extra - is needed when FIND_CACHE_DIRS is empty but should be harmless.
494  #
495  # Param 1 - Dirs to find in
496  # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
497  define CacheFind
498    $(if $(filter-out $(addsuffix /%,- $(FIND_CACHE_DIRS)) $(FIND_CACHE_DIRS),$1), \
499    $(shell $(FIND) $1 \( -type f -o -type l \) $2), \
500    $(filter $(addsuffix /%,$(patsubst %/,%,$1)) $1,$(FIND_CACHE)))
501  endef
502
503else
504  # If CacheFind is disabled, just run the find command.
505  # Param 1 - Dirs to find in
506  # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
507  define CacheFind
508    $(shell $(FIND) $1 \( -type f -o -type l \) $2)
509  endef
510endif
511
512################################################################################
513
514define AddFileToCopy
515  # Helper macro for SetupCopyFiles
516  # 1 : Source file
517  # 2 : Dest file
518  # 3 : Variable to add targets to
519  # 4 : Macro to call for copy operation
520  $2: $1
521	$(ECHO) $(LOG_INFO) Copying $$(patsubst $(OUTPUT_ROOT)/%,%,$$@)
522	$$($$(strip $4))
523
524  $3 += $2
525endef
526
527# Returns the value of the first argument
528identity = \
529    $(strip $1)
530
531# Setup make rules for copying files, with an option to do more complex
532# processing instead of copying.
533#
534# Parameter 1 is the name of the rule. This name is used as variable prefix,
535# and the targets generated are listed in a variable by that name.
536#
537# Remaining parameters are named arguments. These include:
538#   SRC     : Source root dir (defaults to dir of first file)
539#   DEST    : Dest root dir
540#   FILES   : List of files to copy with absolute paths, or path relative to SRC.
541#             Must be in SRC.
542#   FLATTEN : Set to flatten the directory structure in the DEST dir.
543#   MACRO   : Optionally override the default macro used for making the copy.
544#             Default is 'install-file'
545#   NAME_MACRO : Optionally supply a macro that rewrites the target file name
546#                based on the source file name
547SetupCopyFiles = $(NamedParamsMacroTemplate)
548define SetupCopyFilesBody
549
550  ifeq ($$($1_MACRO), )
551    $1_MACRO := install-file
552  endif
553
554  # Default SRC to the dir of the first file.
555  ifeq ($$($1_SRC), )
556    $1_SRC := $$(dir $$(firstword $$($1_FILES)))
557  endif
558
559  ifeq ($$($1_NAME_MACRO), )
560    $1_NAME_MACRO := identity
561  endif
562
563  # Remove any trailing slash from SRC
564  $1_SRC := $$(patsubst %/,%,$$($1_SRC))
565
566  $$(foreach f, $$(patsubst $$($1_SRC)/%,%,$$($1_FILES)), \
567      $$(eval $$(call AddFileToCopy, $$($1_SRC)/$$f, \
568      $$($1_DEST)/$$(call $$(strip $$($1_NAME_MACRO)),$$(if $$($1_FLATTEN),$$(notdir $$f),$$f)), \
569      $1, $$($1_MACRO))))
570
571endef
572
573################################################################################
574# ShellQuote
575#
576# Quotes a string with single quotes and replaces single quotes with '\'' so
577# that the contents survives being given to the shell.
578
579ShellQuote = \
580    $(SQUOTE)$(subst $(SQUOTE),$(SQUOTE)\$(SQUOTE)$(SQUOTE),$(strip $1))$(SQUOTE)
581
582################################################################################
583# Write to and read from file
584
585# Param 1 - File to read
586ReadFile = \
587    $(shell $(CAT) $1)
588
589# Param 1 - Text to write
590# Param 2 - File to write to
591ifeq ($(HAS_FILE_FUNCTION), true)
592  WriteFile = \
593      $(file >$2,$(strip $1))
594else
595# Use printf to get consistent behavior on all platforms.
596WriteFile = \
597    $(shell $(PRINTF) "%s" $(call ShellQuote, $1) > $2)
598endif
599
600################################################################################
601# DependOnVariable
602#
603# This macro takes a variable name and puts the value in a file only if the
604# value has changed since last. The name of the file is returned. This can be
605# used to create rule dependencies on make variable values. The following
606# example would get rebuilt if the value of SOME_VAR was changed:
607#
608# path/to/some-file: $(call DependOnVariable, SOME_VAR)
609#         echo $(SOME_VAR) > $@
610#
611# Note that leading and trailing white space in the value is ignored.
612#
613
614# Defines the sub directory structure to store variable value file in
615DependOnVariableDirName = \
616    $(strip $(subst $(SRC_ROOT)/,,\
617        $(if $(filter /%, $(firstword $(MAKEFILE_LIST))), \
618          $(firstword $(MAKEFILE_LIST)), \
619          $(CURDIR)/$(firstword $(MAKEFILE_LIST)))))
620
621# Defines the name of the file to store variable value in. Generates a name
622# unless parameter 2 is given.
623# Param 1 - Name of variable
624# Param 2 - (optional) name of file to store value in
625DependOnVariableFileName = \
626    $(strip $(if $(strip $2), $2, \
627      $(MAKESUPPORT_OUTPUTDIR)/vardeps/$(DependOnVariableDirName)/$(strip $1).vardeps))
628
629# Does the actual work with parameters stripped.
630# If the file exists AND the contents is the same as the variable, do nothing
631# else print a new file.
632# Always returns the name of the file where the value was printed.
633# Param 1 - Name of variable
634# Param 2 - (optional) name of file to store value in
635DependOnVariableHelper = \
636    $(strip \
637        $(eval -include $(call DependOnVariableFileName, $1, $2)) \
638        $(if $(call equals, $(strip $($1)), $(strip $($1_old))),,\
639          $(call MakeDir, $(dir $(call DependOnVariableFileName, $1, $2))) \
640          $(if $(findstring $(LOG_LEVEL), trace), \
641              $(info NewVariable $1: >$(strip $($1))<) \
642              $(info OldVariable $1: >$(strip $($1_old))<)) \
643          $(call WriteFile, $1_old:=$(call DoubleDollar,$($1)), \
644              $(call DependOnVariableFileName, $1, $2))) \
645        $(call DependOnVariableFileName, $1, $2) \
646    )
647
648# Main macro
649# Param 1 - Name of variable
650# Param 2 - (optional) name of file to store value in
651DependOnVariable = \
652    $(call DependOnVariableHelper,$(strip $1),$(strip $2))
653
654################################################################################
655# Failure logging support macros. These are supposed to be used by the Setup*
656# compilation macros.
657#
658# LogFailures will run a command and store a copy of output in a specified file.
659# If the command succeeds, the file is deleted, otherwise it is moved to the
660# failure-logs directory.
661# Param 1 - The log file of the failed command
662# Param 2 - A compact but representative name to describe this command
663# Param 3 - Command to run
664LogFailures = \
665  ( ($(BASH) $(SRC_ROOT)/common/bin/logger.sh $1 $3 && $(RM) $1) || \
666  (exitcode=$(DOLLAR)$(DOLLAR)? && $(MV) $1 $(MAKESUPPORT_OUTPUTDIR)/failure-logs/$(strip $2).log && exit $(DOLLAR)$(DOLLAR)exitcode) )
667
668################################################################################
669# Find lib dir for module
670# Param 1 - module name
671ifeq ($(OPENJDK_TARGET_OS_TYPE), unix)
672  FindLibDirForModule = \
673      $(SUPPORT_OUTPUTDIR)/modules_libs/$(strip $1)$(OPENJDK_TARGET_CPU_LIBDIR)
674else
675  FindLibDirForModule = \
676      $(SUPPORT_OUTPUTDIR)/modules_libs/$(strip $1)
677endif
678
679################################################################################
680# Return a string suitable for use after a -classpath option. It will correct and safe to use
681# on all platforms. Arguments are given as space separate classpath entries.
682# param 1 : A space separated list of classpath entries
683# The surrounding strip is needed to keep additional whitespace out
684PathList = \
685  "$(subst $(SPACE),$(PATH_SEP),$(strip $1))"
686
687################################################################################
688
689# Hook to include the corresponding custom file, if present.
690$(eval $(call IncludeCustomExtension, , common/MakeBase.gmk))
691
692endif # _MAKEBASE_GMK
693