MakeBase.gmk revision 1829:5a7e1695ac8c
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),$$(strip $$($$(strip $1)))))
147  endef
148
149else # HAS_FILE_FUNCTION
150
151  $(eval compress_paths = \
152      $(strip $(shell $(CAT) $(SRC_ROOT)/make/common/support/ListPathsSafely-pre-compress.incl)))
153  compress_paths += \
154      $(subst $(SRC_ROOT),X97, \
155      $(subst $(OUTPUT_ROOT),X98, \
156      $(subst X,X00, \
157      $(subst $(SPACE),\n,$(strip $1)))))
158  $(eval compress_paths += \
159      $(strip $(shell $(CAT) $(SRC_ROOT)/make/common/support/ListPathsSafely-post-compress.incl)))
160
161  decompress_paths=$(SED) -f $(SRC_ROOT)/make/common/support/ListPathsSafely-uncompress.sed \
162      -e 's|X99|\\n|g' \
163      -e 's|X98|$(OUTPUT_ROOT)|g' -e 's|X97|$(SRC_ROOT)|g' \
164      -e 's|X00|X|g'
165
166  ListPathsSafely_IfPrintf = \
167      $(if $(word $3,$($(strip $1))), \
168          $(shell $(PRINTF) -- "$(strip $(call EscapeDollar, \
169              $(call compress_paths, $(wordlist $3,$4,$($(strip $1))))))\n" \
170              | $(decompress_paths) >> $2))
171
172  # Param 1 - Name of variable containing paths/arguments to output
173  # Param 2 - File to print to
174  # Param 3 - Set to true to append to file instead of overwriting
175  define ListPathsSafely
176    ifneq (,$$(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    $$(call ListPathsSafely_IfPrintf,$1,$2,9751,10000)
233  endef
234endif # HAS_FILE_FUNCTION
235
236# The source tips can come from the Mercurial repository, or in the files
237# $(HGTIP_FILENAME) which contains the tip but is also positioned in the same
238# directory as the original $(HGDIR) directory.
239# These should not be := assignments, only used from the root Makefile.
240HG_VERSION = $(shell $(HG) version 2> /dev/null)
241HG_DIRECTORY=.hg
242HGTIP_FILENAME=.hgtip
243HG_SEARCH = ./REPO ./*/REPO ./*/*/REPO ./*/*/*/REPO
244REPO_LIST = $(patsubst ./%,%,$(patsubst %/,%,$(sort $(dir \
245    $(shell $(CD) $(SRC_ROOT) ; \
246        $(LS) -d $(HG_SEARCH:%/REPO=%/$(HG_DIRECTORY)) \
247            $(HG_SEARCH:%/REPO=%/$(HGTIP_FILENAME)) \
248        2> /dev/null)))))
249
250# Emit the repo:tip pairs to $@
251define GetSourceTips
252	$(CD) $(SRC_ROOT) ; \
253	for i in $(REPO_LIST) IGNORE ; do \
254	  if [ "$${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    LogInfo = $$(info $$(strip $$1))
289    LOG_INFO :=
290  else
291    LogInfo =
292    LOG_INFO := > /dev/null
293  endif
294  ifneq ($$(findstring $$(LOG_LEVEL), debug trace),)
295    LogDebug = $$(info $$(strip $$1))
296    LOG_DEBUG :=
297  else
298    LogDebug =
299    LOG_DEBUG := > /dev/null
300  endif
301  ifneq ($$(findstring $$(LOG_LEVEL), trace),)
302    LogTrace = $$(info $$(strip $$1))
303    LOG_TRACE :=
304  else
305    LogTrace =
306    LOG_TRACE := > /dev/null
307  endif
308endef
309
310# Make sure logging is setup for everyone that includes MakeBase.gmk.
311$(eval $(call SetupLogging))
312
313################################################################################
314# Creates a sequence of increasing numbers (inclusive).
315# Param 1 - starting number
316# Param 2 - ending number
317sequence = \
318    $(wordlist $1, $2, $(strip \
319        $(eval SEQUENCE_COUNT :=) \
320        $(call _sequence-do,$(strip $2))))
321
322_sequence-do = \
323    $(if $(word $1, $(SEQUENCE_COUNT)),, \
324      $(eval SEQUENCE_COUNT += .) \
325      $(words $(SEQUENCE_COUNT)) \
326      $(call _sequence-do,$1))
327
328################################################################################
329
330MAX_PARAMS := 35
331PARAM_SEQUENCE := $(call sequence, 2, $(MAX_PARAMS))
332
333# Template for creating a macro taking named parameters. To use it, assign the
334# template to a variable with the name you want for your macro, using '='
335# assignment. Then define a macro body with the suffix "Body". The Body macro
336# should take 1 parameter which should be a unique string for that invocation
337# of the macro.
338# Ex:
339# SetupFoo = $(NamedParamsMacroTemplate)
340# define SetupFooBody
341#   # do something
342#   # access parameters as $$($1_BAR)
343# endef
344# Call it like this
345# $(eval $(call SetupFoo, BUILD_SOMETHING, \
346#     BAR := some parameter value, \
347# ))
348define NamedParamsMacroTemplate
349  $(if $($(MAX_PARAMS)),$(error Internal makefile error: \
350      Too many named arguments to macro, please update MAX_PARAMS in MakeBase.gmk))
351  # Iterate over 2 3 4... and evaluate the named parameters with $1_ as prefix
352  $(foreach i,$(PARAM_SEQUENCE), $(if $(strip $($i)),\
353    $(strip $1)_$(strip $($i)))$(NEWLINE))
354  # Debug print all named parameter names and values
355  $(if $(findstring $(LOG_LEVEL),debug trace), \
356    $(info $0 $(strip $1) $(foreach i,$(PARAM_SEQUENCE), \
357      $(if $(strip $($i)),$(NEWLINE) $(strip [$i] $(if $(filter $(LOG_LEVEL), trace), \
358        $($i), $(wordlist 1, 20, $($(i))) $(if $(word 21, $($(i))), ...)))))))
359
360  $(if $(DEBUG_$(strip $1)),
361    $(info -------- <<< Begin expansion of $(strip $1)) \
362    $(info $(call $(0)Body,$(strip $1))) \
363    $(info -------- >>> End expansion of $(strip $1)) \
364  )
365
366  $(call $(0)Body,$(strip $1))
367endef
368
369################################################################################
370# Make directory without forking mkdir if not needed
371MakeDir = \
372    $(strip $(if $(subst $(wildcard $1 $2 $3 $4 $5 $6 $7 $8 $9),,$(strip $1 $2 $3 $4 $5 $6 $7 $8 $9)),\
373      $(shell $(MKDIR) -p $1 $2 $3 $4 $5 $6 $7 $8 $9)))
374
375################################################################################
376# Assign a variable only if it is empty
377# Param 1 - Variable to assign
378# Param 2 - Value to assign
379SetIfEmpty = \
380    $(if $($(strip $1)),,$(eval $(strip $1) := $2))
381
382################################################################################
383
384ifeq ($(OPENJDK_TARGET_OS),solaris)
385  # On Solaris, if the target is a symlink and exists, cp won't overwrite.
386  # Cp has to operate in recursive mode to allow for -P flag, to preserve soft links. If the
387  # name of the target file differs from the source file, rename after copy.
388  # If the source and target parent directories are the same, recursive copy doesn't work
389  # so we fall back on regular copy, which isn't preserving symlinks.
390  define install-file
391	$(MKDIR) -p '$(@D)'
392	$(RM) '$@'
393	if [ "$(@D)" != "$(<D)" ]; then \
394	  $(CP) -f -r -P '$<' '$(@D)'; \
395	  if [ "$(@F)" != "$(<F)" ]; then \
396	    $(MV) '$(@D)/$(<F)' '$@'; \
397	  fi; \
398	else \
399	  if [ -L '$<' ]; then \
400	    $(ECHO) "Source file is a symlink and target is in the same directory: $< $@" ; \
401	    exit 1; \
402	  fi; \
403	  $(CP) -f '$<' '$@'; \
404	fi
405  endef
406else ifeq ($(OPENJDK_TARGET_OS),macosx)
407  # On mac, extended attributes sometimes creep into the source files, which may later
408  # cause the creation of ._* files which confuses testing. Clear these with xattr if
409  # set. Some files get their write permissions removed after being copied to the
410  # output dir. When these are copied again to images, xattr would fail. By only clearing
411  # attributes when they are present, failing on this is avoided.
412  define install-file
413	$(MKDIR) -p '$(@D)'
414	$(CP) -fRP '$<' '$@'
415	if [ -n "`$(XATTR) -l '$@'`" ]; then $(XATTR) -c '$@'; fi
416  endef
417else
418  # Running mkdir and cp in the same shell speeds up copy intensive tasks in Cygwin
419  # significantly.
420  define install-file
421	$(MKDIR) -p '$(@D)' && $(CP) -fP '$<' '$@'
422  endef
423endif
424
425################################################################################
426# Filter out duplicate sub strings while preserving order. Keeps the first occurance.
427uniq = \
428    $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
429
430# Returns all whitespace-separated words in $2 where at least one of the
431# whitespace-separated words in $1 is a substring.
432containing = \
433    $(strip \
434        $(foreach v,$(strip $2),\
435          $(call uniq,$(foreach p,$(strip $1),$(if $(findstring $p,$v),$v)))))
436
437# Returns all whitespace-separated words in $2 where none of the
438# whitespace-separated words in $1 is a substring.
439not-containing = \
440    $(strip $(filter-out $(call containing,$1,$2),$2))
441
442# Return a list of all string elements that are duplicated in $1.
443dups = \
444    $(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \
445        $(words $(filter $v, $1))), $v)))
446
447# String equals
448equals = \
449    $(and $(findstring $(strip $1),$(strip $2)),\
450        $(findstring $(strip $2),$(strip $1)))
451
452# Remove a whole list of prefixes
453# $1 - List of prefixes
454# $2 - List of elements to process
455remove-prefixes = \
456    $(strip $(if $1,$(patsubst $(firstword $1)%,%,\
457      $(call remove-prefixes,$(filter-out $(firstword $1),$1),$2)),$2))
458
459# Convert the string given to upper case, without any $(shell)
460# Inspired by http://lists.gnu.org/archive/html/help-make/2013-09/msg00009.html
461uppercase_table := a,A b,B c,C d,D e,E f,F g,G h,H i,I j,J k,K l,L m,M n,N o,O \
462    p,P q,Q r,R s,S t,T u,U v,V w,W x,X y,Y z,Z
463
464uppercase_internal = \
465  $(if $(strip $1), $$(subst $(firstword $1), $(call uppercase_internal, \
466      $(wordlist 2, $(words $1), $1), $2)), $2)
467
468# Convert a string to upper case. Works only on a-z.
469# $1 - The string to convert
470uppercase = \
471  $(strip \
472    $(eval uppercase_result := $(call uppercase_internal, $(uppercase_table), $1)) \
473    $(uppercase_result) \
474  )
475
476################################################################################
477
478ifneq ($(DISABLE_CACHE_FIND), true)
479  # In Cygwin, finds are very costly, both because of expensive forks and because
480  # of bad file system caching. Find is used extensively in $(shell) commands to
481  # find source files. This makes rerunning make with no or few changes rather
482  # expensive. To speed this up, these two macros are used to cache the results
483  # of simple find commands for reuse.
484  #
485  # Runs a find and stores both the directories where it was run and the results.
486  # This macro can be called multiple times to add to the cache. Only finds files
487  # with no filters.
488  #
489  # Needs to be called with $(eval )
490  #
491  # Even if the performance benifit is negligible on other platforms, keep the
492  # functionality active unless explicitly disabled to exercise it more.
493  #
494  # Initialize FIND_CACHE_DIRS with := to make it a non recursively-expanded variable
495  FIND_CACHE_DIRS :=
496  # Param 1 - Dirs to find in
497  # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
498  define FillCacheFind
499    # Filter out already cached dirs. The - is needed when FIND_CACHE_DIRS is empty
500    # since filter out will then return empty.
501    FIND_CACHE_NEW_DIRS := $$(filter-out $$(addsuffix /%,\
502        - $(FIND_CACHE_DIRS)) $(FIND_CACHE_DIRS), $1)
503    ifneq ($$(FIND_CACHE_NEW_DIRS), )
504      # Remove any trailing slash from dirs in the cache dir list
505      FIND_CACHE_DIRS += $$(patsubst %/,%, $$(FIND_CACHE_NEW_DIRS))
506      FIND_CACHE := $$(sort $$(FIND_CACHE) $$(shell $(FIND) $$(FIND_CACHE_NEW_DIRS) \( -type f -o -type l \) $2))
507    endif
508  endef
509
510  # Mimics find by looking in the cache if all of the directories have been cached.
511  # Otherwise reverts to shell find. This is safe to call on all platforms, even if
512  # cache is deactivated.
513  #
514  # $1 can be either a directory or a file. If it's a directory, make
515  # sure we have exactly one trailing slash before the wildcard.
516  # The extra - is needed when FIND_CACHE_DIRS is empty but should be harmless.
517  #
518  # Param 1 - Dirs to find in
519  # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
520  define CacheFind
521    $(if $(filter-out $(addsuffix /%,- $(FIND_CACHE_DIRS)) $(FIND_CACHE_DIRS),$1), \
522    $(shell $(FIND) $1 \( -type f -o -type l \) $2), \
523    $(filter $(addsuffix /%,$(patsubst %/,%,$1)) $1,$(FIND_CACHE)))
524  endef
525
526else
527  # If CacheFind is disabled, just run the find command.
528  # Param 1 - Dirs to find in
529  # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
530  define CacheFind
531    $(shell $(FIND) $1 \( -type f -o -type l \) $2)
532  endef
533endif
534
535################################################################################
536
537define AddFileToCopy
538  # Helper macro for SetupCopyFiles
539  # 1 : Source file
540  # 2 : Dest file
541  # 3 : Variable to add targets to
542  # 4 : Macro to call for copy operation
543  $2: $1
544	$(ECHO) $(LOG_INFO) Copying $$(patsubst $(OUTPUT_ROOT)/%,%,$$@)
545	$$($$(strip $4))
546
547  $3 += $2
548endef
549
550# Returns the value of the first argument
551identity = \
552    $(strip $1)
553
554# Setup make rules for copying files, with an option to do more complex
555# processing instead of copying.
556#
557# Parameter 1 is the name of the rule. This name is used as variable prefix,
558# and the targets generated are listed in a variable by that name.
559#
560# Remaining parameters are named arguments. These include:
561#   SRC     : Source root dir (defaults to dir of first file)
562#   DEST    : Dest root dir
563#   FILES   : List of files to copy with absolute paths, or path relative to SRC.
564#             Must be in SRC.
565#   FLATTEN : Set to flatten the directory structure in the DEST dir.
566#   MACRO   : Optionally override the default macro used for making the copy.
567#             Default is 'install-file'
568#   NAME_MACRO : Optionally supply a macro that rewrites the target file name
569#                based on the source file name
570SetupCopyFiles = $(NamedParamsMacroTemplate)
571define SetupCopyFilesBody
572
573  ifeq ($$($1_MACRO), )
574    $1_MACRO := install-file
575  endif
576
577  # Default SRC to the dir of the first file.
578  ifeq ($$($1_SRC), )
579    $1_SRC := $$(dir $$(firstword $$($1_FILES)))
580  endif
581
582  ifeq ($$($1_NAME_MACRO), )
583    $1_NAME_MACRO := identity
584  endif
585
586  # Remove any trailing slash from SRC and DEST
587  $1_SRC := $$(patsubst %/,%,$$($1_SRC))
588  $1_DEST := $$(patsubst %/,%,$$($1_DEST))
589
590  $$(foreach f, $$(patsubst $$($1_SRC)/%,%,$$($1_FILES)), \
591      $$(eval $$(call AddFileToCopy, $$($1_SRC)/$$f, \
592      $$($1_DEST)/$$(call $$(strip $$($1_NAME_MACRO)),$$(if $$($1_FLATTEN),$$(notdir $$f),$$f)), \
593      $1, $$($1_MACRO))))
594
595endef
596
597################################################################################
598# ShellQuote
599#
600# Quotes a string with single quotes and replaces single quotes with '\'' so
601# that the contents survives being given to the shell.
602
603ShellQuote = \
604    $(SQUOTE)$(subst $(SQUOTE),$(SQUOTE)\$(SQUOTE)$(SQUOTE),$(strip $1))$(SQUOTE)
605
606################################################################################
607# Write to and read from file
608
609# Param 1 - File to read
610ReadFile = \
611    $(shell $(CAT) $1)
612
613# Param 1 - Text to write
614# Param 2 - File to write to
615ifeq ($(HAS_FILE_FUNCTION), true)
616  WriteFile = \
617      $(file >$2,$(strip $1))
618else
619  # Use printf to get consistent behavior on all platforms.
620  WriteFile = \
621      $(shell $(PRINTF) "%s" $(call ShellQuote, $1) > $2)
622endif
623
624################################################################################
625# DependOnVariable
626#
627# This macro takes a variable name and puts the value in a file only if the
628# value has changed since last. The name of the file is returned. This can be
629# used to create rule dependencies on make variable values. The following
630# example would get rebuilt if the value of SOME_VAR was changed:
631#
632# path/to/some-file: $(call DependOnVariable, SOME_VAR)
633#         echo $(SOME_VAR) > $@
634#
635# Note that leading and trailing white space in the value is ignored.
636#
637
638# Defines the sub directory structure to store variable value file in
639DependOnVariableDirName = \
640    $(strip $(subst $(SRC_ROOT)/,,\
641        $(if $(filter /%, $(firstword $(MAKEFILE_LIST))), \
642          $(firstword $(MAKEFILE_LIST)), \
643          $(CURDIR)/$(firstword $(MAKEFILE_LIST)))))
644
645# Defines the name of the file to store variable value in. Generates a name
646# unless parameter 2 is given.
647# Param 1 - Name of variable
648# Param 2 - (optional) name of file to store value in
649DependOnVariableFileName = \
650    $(strip $(if $(strip $2), $2, \
651      $(MAKESUPPORT_OUTPUTDIR)/vardeps/$(DependOnVariableDirName)/$(strip $1).vardeps))
652
653# Does the actual work with parameters stripped.
654# If the file exists AND the contents is the same as the variable, do nothing
655# else print a new file.
656# Always returns the name of the file where the value was printed.
657# Param 1 - Name of variable
658# Param 2 - (optional) name of file to store value in
659DependOnVariableHelper = \
660    $(strip \
661        $(eval -include $(call DependOnVariableFileName, $1, $2)) \
662        $(if $(call equals, $(strip $($1)), $(strip $($1_old))),,\
663          $(call MakeDir, $(dir $(call DependOnVariableFileName, $1, $2))) \
664          $(if $(findstring $(LOG_LEVEL), trace), \
665              $(info NewVariable $1: >$(strip $($1))<) \
666              $(info OldVariable $1: >$(strip $($1_old))<)) \
667          $(call WriteFile, $1_old:=$(call DoubleDollar,$($1)), \
668              $(call DependOnVariableFileName, $1, $2))) \
669        $(call DependOnVariableFileName, $1, $2) \
670    )
671
672# Main macro
673# Param 1 - Name of variable
674# Param 2 - (optional) name of file to store value in
675DependOnVariable = \
676    $(call DependOnVariableHelper,$(strip $1),$(strip $2))
677
678################################################################################
679# Failure logging support macros. These are supposed to be used by the Setup*
680# compilation macros.
681#
682# LogFailures will run a command and store a copy of output in a specified file.
683# If the command succeeds, the file is deleted, otherwise it is moved to the
684# failure-logs directory.
685# Param 1 - The log file of the failed command
686# Param 2 - A compact but representative name to describe this command
687# Param 3 - Command to run
688LogFailures = \
689  ( ($(BASH) $(SRC_ROOT)/common/bin/logger.sh $1 $3 && $(RM) $1) || \
690  (exitcode=$(DOLLAR)$(DOLLAR)? && $(MV) $1 $(MAKESUPPORT_OUTPUTDIR)/failure-logs/$(strip $2).log && exit $(DOLLAR)$(DOLLAR)exitcode) )
691
692################################################################################
693# Find lib dir for module
694# Param 1 - module name
695ifeq ($(OPENJDK_TARGET_OS_TYPE), unix)
696  FindLibDirForModule = \
697      $(SUPPORT_OUTPUTDIR)/modules_libs/$(strip $1)$(OPENJDK_TARGET_CPU_LIBDIR)
698else
699  FindLibDirForModule = \
700      $(SUPPORT_OUTPUTDIR)/modules_libs/$(strip $1)
701endif
702
703################################################################################
704# Return a string suitable for use after a -classpath option. It will correct and safe to use
705# on all platforms. Arguments are given as space separate classpath entries.
706# param 1 : A space separated list of classpath entries
707# The surrounding strip is needed to keep additional whitespace out
708PathList = \
709  "$(subst $(SPACE),$(PATH_SEP),$(strip $1))"
710
711################################################################################
712
713# Hook to include the corresponding custom file, if present.
714$(eval $(call IncludeCustomExtension, , common/MakeBase.gmk))
715
716endif # _MAKEBASE_GMK
717