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 
  32 ifndef _MAKEBASE_GMK
  33 _MAKEBASE_GMK := 1
  34 
  35 ifeq ($(wildcard $(SPEC)),)
  36   $(error MakeBase.gmk needs SPEC set to a proper spec.gmk)
  37 endif
  38 
  39 # By defining this pseudo target, make will automatically remove targets
  40 # if their recipe fails so that a rebuild is automatically triggered on the
  41 # next make invocation.
  42 .DELETE_ON_ERROR:
  43 
  44 ##############################
  45 # Functions
  46 ##############################
  47 
  48 
  49 ### Functions for timers
  50 
  51 # Store the build times in this directory.
  52 BUILDTIMESDIR=$(OUTPUT_ROOT)/make-support/build-times
  53 
  54 # Record starting time for build of a sub repository.
  55 define RecordStartTime
  56         $(MKDIR) -p $(BUILDTIMESDIR)
  57         $(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)
  58         $(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)_human_readable
  59 endef
  60 
  61 # Record ending time and calculate the difference and store it in a
  62 # easy to read format. Handles builds that cross midnight. Expects
  63 # that a build will never take 24 hours or more.
  64 define RecordEndTime
  65         $(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)
  66         $(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)_human_readable
  67         $(ECHO) `$(CAT) $(BUILDTIMESDIR)/build_time_start_$(strip $1)` `$(CAT) $(BUILDTIMESDIR)/build_time_end_$(strip $1)` $1 | \
  68             $(NAWK) '{ F=$$7; T=$$14; if (F > T) { T+=3600*24 }; D=T-F; H=int(D/3600); \
  69             M=int((D-H*3600)/60); S=D-H*3600-M*60; printf("%02d:%02d:%02d %s\n",H,M,S,$$15); }' \
  70             > $(BUILDTIMESDIR)/build_time_diff_$(strip $1)
  71 endef
  72 
  73 # Hook to be called when starting to execute a top-level target
  74 define TargetEnter
  75         $(PRINTF) "## Starting $(patsubst %-only,%,$@)\n"
  76         $(call RecordStartTime,$(patsubst %-only,%,$@))
  77 endef
  78 
  79 # Hook to be called when finish executing a top-level target
  80 define TargetExit
  81         $(call RecordEndTime,$(patsubst %-only,%,$@))
  82         $(PRINTF) "## Finished $(patsubst %-only,%,$@) (build time %s)\n\n" \
  83             "`$(CAT) $(BUILDTIMESDIR)/build_time_diff_$(patsubst %-only,%,$@) | $(CUT) -f 1 -d ' '`"
  84 endef
  85 
  86 ################################################################################
  87 # This macro translates $ into \$ to protect the $ from expansion in the shell.
  88 # To make this macro resilient against already escaped strings, first remove
  89 # any present escapes before escaping so that no double escapes are added.
  90 EscapeDollar = $(subst $$,\$$,$(subst \$$,$$,$(strip $1)))
  91 
  92 ################################################################################
  93 # This macro translates $ into $$ to protect the string from make itself.
  94 DoubleDollar = $(subst $$,$$$$,$(strip $1))
  95 
  96 ################################################################################
  97 
  98 # If the variable that you want to send to stdout for piping into a file or otherwise,
  99 # is potentially long, for example the a list of file paths, eg a list of all package directories.
 100 # Then you need to use ListPathsSafely, which optimistically splits the output into several shell
 101 # calls as well as use compression on recurrent file paths segments, to get around the potential
 102 # command line length problem that exists in cygwin and other shells.
 103 compress_pre:=$(strip $(shell $(CAT) $(SRC_ROOT)/make/common/support/ListPathsSafely-pre-compress.incl))
 104 compress_post:=$(strip $(shell $(CAT) $(SRC_ROOT)/make/common/support/ListPathsSafely-post-compress.incl))
 105 compress_paths=$(compress_pre)\
 106 $(subst $(SRC_ROOT),X97,\
 107 $(subst $(OUTPUT_ROOT),X98,\
 108 $(subst X,X00,\
 109 $(subst $(SPACE),\n,$(strip $1)))))\
 110 $(compress_post)
 111 
 112 decompress_paths=$(SED) -f $(SRC_ROOT)/make/common/support/ListPathsSafely-uncompress.sed -e 's|X99|\\n|g' \
 113     -e 's|X98|$(OUTPUT_ROOT)|g' -e 's|X97|$(SRC_ROOT)|g' \
 114     -e 's|X00|X|g' | tr '\n' '$2'
 115 
 116 define ListPathsSafely_If
 117         $(if $(word $3,$($1)),$(eval $1_LPS$3:=$(call compress_paths,$(wordlist $3,$4,$($1)))))
 118 endef
 119 
 120 define ListPathsSafely_Printf
 121         $(if $(strip $($1_LPS$4)),$(if $(findstring $(LOG_LEVEL),trace),,@)printf \
 122             -- "$(strip $(call EscapeDollar, $($1_LPS$4)))\n" | $(decompress_paths) $3)
 123 endef
 124 
 125 # Receipt example:
 126 #   rm -f thepaths
 127 #   $(call ListPathsSafely,THEPATHS,\n, >> thepaths)
 128 # The \n argument means translate spaces into \n
 129 # if instead , , (a space) is supplied, then spaces remain spaces.
 130 define ListPathsSafely
 131         $(if $(word 16001,$($1)),$(error Cannot list safely more than 16000 paths. $1 has $(words $($1)) paths!))
 132         $(ECHO) $(LOG_DEBUG) Writing $(words $($1)) paths to '$3'
 133         $(call ListPathsSafely_If,$1,$2,1,250)
 134         $(call ListPathsSafely_If,$1,$2,251,500)
 135         $(call ListPathsSafely_If,$1,$2,501,750)
 136         $(call ListPathsSafely_If,$1,$2,751,1000)
 137 
 138         $(call ListPathsSafely_If,$1,$2,1001,1250)
 139         $(call ListPathsSafely_If,$1,$2,1251,1500)
 140         $(call ListPathsSafely_If,$1,$2,1501,1750)
 141         $(call ListPathsSafely_If,$1,$2,1751,2000)
 142 
 143         $(call ListPathsSafely_If,$1,$2,2001,2250)
 144         $(call ListPathsSafely_If,$1,$2,2251,2500)
 145         $(call ListPathsSafely_If,$1,$2,2501,2750)
 146         $(call ListPathsSafely_If,$1,$2,2751,3000)
 147 
 148         $(call ListPathsSafely_If,$1,$2,3001,3250)
 149         $(call ListPathsSafely_If,$1,$2,3251,3500)
 150         $(call ListPathsSafely_If,$1,$2,3501,3750)
 151         $(call ListPathsSafely_If,$1,$2,3751,4000)
 152 
 153         $(call ListPathsSafely_If,$1,$2,4001,4250)
 154         $(call ListPathsSafely_If,$1,$2,4251,4500)
 155         $(call ListPathsSafely_If,$1,$2,4501,4750)
 156         $(call ListPathsSafely_If,$1,$2,4751,5000)
 157 
 158         $(call ListPathsSafely_If,$1,$2,5001,5250)
 159         $(call ListPathsSafely_If,$1,$2,5251,5500)
 160         $(call ListPathsSafely_If,$1,$2,5501,5750)
 161         $(call ListPathsSafely_If,$1,$2,5751,6000)
 162 
 163         $(call ListPathsSafely_If,$1,$2,6001,6250)
 164         $(call ListPathsSafely_If,$1,$2,6251,6500)
 165         $(call ListPathsSafely_If,$1,$2,6501,6750)
 166         $(call ListPathsSafely_If,$1,$2,6751,7000)
 167 
 168         $(call ListPathsSafely_If,$1,$2,7001,7250)
 169         $(call ListPathsSafely_If,$1,$2,7251,7500)
 170         $(call ListPathsSafely_If,$1,$2,7501,7750)
 171         $(call ListPathsSafely_If,$1,$2,7751,8000)
 172 
 173         $(call ListPathsSafely_If,$1,$2,8001,8250)
 174         $(call ListPathsSafely_If,$1,$2,8251,8500)
 175         $(call ListPathsSafely_If,$1,$2,8501,8750)
 176         $(call ListPathsSafely_If,$1,$2,8751,9000)
 177 
 178         $(call ListPathsSafely_If,$1,$2,9001,9250)
 179         $(call ListPathsSafely_If,$1,$2,9251,9500)
 180         $(call ListPathsSafely_If,$1,$2,9501,9750)
 181         $(call ListPathsSafely_If,$1,$2,9751,10000)
 182 
 183         $(call ListPathsSafely_If,$1,$2,10001,10250)
 184         $(call ListPathsSafely_If,$1,$2,10251,10500)
 185         $(call ListPathsSafely_If,$1,$2,10501,10750)
 186         $(call ListPathsSafely_If,$1,$2,10751,11000)
 187 
 188         $(call ListPathsSafely_If,$1,$2,11001,11250)
 189         $(call ListPathsSafely_If,$1,$2,11251,11500)
 190         $(call ListPathsSafely_If,$1,$2,11501,11750)
 191         $(call ListPathsSafely_If,$1,$2,11751,12000)
 192 
 193         $(call ListPathsSafely_If,$1,$2,12001,12250)
 194         $(call ListPathsSafely_If,$1,$2,12251,12500)
 195         $(call ListPathsSafely_If,$1,$2,12501,12750)
 196         $(call ListPathsSafely_If,$1,$2,12751,13000)
 197 
 198         $(call ListPathsSafely_If,$1,$2,13001,13250)
 199         $(call ListPathsSafely_If,$1,$2,13251,13500)
 200         $(call ListPathsSafely_If,$1,$2,13501,13750)
 201         $(call ListPathsSafely_If,$1,$2,13751,14000)
 202 
 203         $(call ListPathsSafely_If,$1,$2,14001,14250)
 204         $(call ListPathsSafely_If,$1,$2,14251,14500)
 205         $(call ListPathsSafely_If,$1,$2,14501,14750)
 206         $(call ListPathsSafely_If,$1,$2,14751,15000)
 207 
 208         $(call ListPathsSafely_If,$1,$2,15001,15250)
 209         $(call ListPathsSafely_If,$1,$2,15251,15500)
 210         $(call ListPathsSafely_If,$1,$2,15501,15750)
 211         $(call ListPathsSafely_If,$1,$2,15751,16000)
 212 
 213         $(call ListPathsSafely_Printf,$1,$2,$3,1)
 214         $(call ListPathsSafely_Printf,$1,$2,$3,251)
 215         $(call ListPathsSafely_Printf,$1,$2,$3,501)
 216         $(call ListPathsSafely_Printf,$1,$2,$3,751)
 217 
 218         $(call ListPathsSafely_Printf,$1,$2,$3,1001)
 219         $(call ListPathsSafely_Printf,$1,$2,$3,1251)
 220         $(call ListPathsSafely_Printf,$1,$2,$3,1501)
 221         $(call ListPathsSafely_Printf,$1,$2,$3,1751)
 222 
 223         $(call ListPathsSafely_Printf,$1,$2,$3,2001)
 224         $(call ListPathsSafely_Printf,$1,$2,$3,2251)
 225         $(call ListPathsSafely_Printf,$1,$2,$3,2501)
 226         $(call ListPathsSafely_Printf,$1,$2,$3,2751)
 227 
 228         $(call ListPathsSafely_Printf,$1,$2,$3,3001)
 229         $(call ListPathsSafely_Printf,$1,$2,$3,3251)
 230         $(call ListPathsSafely_Printf,$1,$2,$3,3501)
 231         $(call ListPathsSafely_Printf,$1,$2,$3,3751)
 232 
 233         $(call ListPathsSafely_Printf,$1,$2,$3,4001)
 234         $(call ListPathsSafely_Printf,$1,$2,$3,4251)
 235         $(call ListPathsSafely_Printf,$1,$2,$3,4501)
 236         $(call ListPathsSafely_Printf,$1,$2,$3,4751)
 237 
 238         $(call ListPathsSafely_Printf,$1,$2,$3,5001)
 239         $(call ListPathsSafely_Printf,$1,$2,$3,5251)
 240         $(call ListPathsSafely_Printf,$1,$2,$3,5501)
 241         $(call ListPathsSafely_Printf,$1,$2,$3,5751)
 242 
 243         $(call ListPathsSafely_Printf,$1,$2,$3,6001)
 244         $(call ListPathsSafely_Printf,$1,$2,$3,6251)
 245         $(call ListPathsSafely_Printf,$1,$2,$3,6501)
 246         $(call ListPathsSafely_Printf,$1,$2,$3,6751)
 247 
 248         $(call ListPathsSafely_Printf,$1,$2,$3,7001)
 249         $(call ListPathsSafely_Printf,$1,$2,$3,7251)
 250         $(call ListPathsSafely_Printf,$1,$2,$3,7501)
 251         $(call ListPathsSafely_Printf,$1,$2,$3,7751)
 252 
 253         $(call ListPathsSafely_Printf,$1,$2,$3,8001)
 254         $(call ListPathsSafely_Printf,$1,$2,$3,8251)
 255         $(call ListPathsSafely_Printf,$1,$2,$3,8501)
 256         $(call ListPathsSafely_Printf,$1,$2,$3,8751)
 257 
 258         $(call ListPathsSafely_Printf,$1,$2,$3,9001)
 259         $(call ListPathsSafely_Printf,$1,$2,$3,9251)
 260         $(call ListPathsSafely_Printf,$1,$2,$3,9501)
 261         $(call ListPathsSafely_Printf,$1,$2,$3,9751)
 262 
 263         $(call ListPathsSafely_Printf,$1,$2,$3,10001)
 264         $(call ListPathsSafely_Printf,$1,$2,$3,10251)
 265         $(call ListPathsSafely_Printf,$1,$2,$3,10501)
 266         $(call ListPathsSafely_Printf,$1,$2,$3,10751)
 267 
 268         $(call ListPathsSafely_Printf,$1,$2,$3,11001)
 269         $(call ListPathsSafely_Printf,$1,$2,$3,11251)
 270         $(call ListPathsSafely_Printf,$1,$2,$3,11501)
 271         $(call ListPathsSafely_Printf,$1,$2,$3,11751)
 272 
 273         $(call ListPathsSafely_Printf,$1,$2,$3,12001)
 274         $(call ListPathsSafely_Printf,$1,$2,$3,12251)
 275         $(call ListPathsSafely_Printf,$1,$2,$3,12501)
 276         $(call ListPathsSafely_Printf,$1,$2,$3,12751)
 277 
 278         $(call ListPathsSafely_Printf,$1,$2,$3,13001)
 279         $(call ListPathsSafely_Printf,$1,$2,$3,13251)
 280         $(call ListPathsSafely_Printf,$1,$2,$3,13501)
 281         $(call ListPathsSafely_Printf,$1,$2,$3,13751)
 282 
 283         $(call ListPathsSafely_Printf,$1,$2,$3,14001)
 284         $(call ListPathsSafely_Printf,$1,$2,$3,14251)
 285         $(call ListPathsSafely_Printf,$1,$2,$3,14501)
 286         $(call ListPathsSafely_Printf,$1,$2,$3,14751)
 287 
 288         $(call ListPathsSafely_Printf,$1,$2,$3,15001)
 289         $(call ListPathsSafely_Printf,$1,$2,$3,15251)
 290         $(call ListPathsSafely_Printf,$1,$2,$3,15501)
 291         $(call ListPathsSafely_Printf,$1,$2,$3,15751)
 292 endef
 293 
 294 define ListPathsSafelyNow_IfPrintf
 295   ifneq (,$$(word $4,$$($1)))
 296     $$(eval $1_LPS$4:=$$(call compress_paths,$$(wordlist $4,$5,$$($1))))
 297     $$(shell printf -- "$$(strip $$($1_LPS$4))\n" | $(decompress_paths) $3)
 298   endif
 299 endef
 300 
 301 # And an non-receipt version:
 302 define ListPathsSafelyNow
 303   ifneq (,$$(word 10001,$$($1)))
 304     $$(error Cannot list safely more than 10000 paths. $1 has $$(words $$($1)) paths!)
 305   endif
 306   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,1,250)
 307   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,251,500)
 308   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,501,750)
 309   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,751,1000)
 310 
 311   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,1001,1250)
 312   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,1251,1500)
 313   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,1501,1750)
 314   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,1751,2000)
 315 
 316   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,2001,2250)
 317   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,2251,2500)
 318   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,2501,2750)
 319   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,2751,3000)
 320 
 321   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,3001,3250)
 322   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,3251,3500)
 323   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,3501,3750)
 324   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,3751,4000)
 325 
 326   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,4001,4250)
 327   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,4251,4500)
 328   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,4501,4750)
 329   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,4751,5000)
 330 
 331   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,5001,5250)
 332   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,5251,5500)
 333   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,5501,5750)
 334   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,5751,6000)
 335 
 336   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,6001,6250)
 337   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,6251,6500)
 338   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,6501,6750)
 339   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,6751,7000)
 340 
 341   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,7001,7250)
 342   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,7251,7500)
 343   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,7501,7750)
 344   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,7751,8000)
 345 
 346   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,8001,8250)
 347   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,8251,8500)
 348   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,8501,8750)
 349   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,8751,9000)
 350 
 351   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,9001,9250)
 352   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,9251,9500)
 353   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,9501,9750)
 354   $(call ListPathsSafelyNow_IfPrintf,$1,$2,$3,9751,10000)
 355 
 356 endef
 357 
 358 # The source tips can come from the Mercurial repository, or in the files
 359 # $(HGTIP_FILENAME) which contains the tip but is also positioned in the same
 360 # directory as the original $(HGDIR) directory.
 361 # These should not be := assignments, only used from the root Makefile.
 362 HG_VERSION = $(shell $(HG) version 2> /dev/null)
 363 HG_DIRECTORY=.hg
 364 HGTIP_FILENAME=.hgtip
 365 HG_SEARCH = ./REPO ./*/REPO ./*/*/REPO ./*/*/*/REPO
 366 REPO_LIST = $(patsubst ./%,%,$(patsubst %/,%,$(sort $(dir \
 367     $(shell $(CD) $(SRC_ROOT) ; ( $(LS) -d $(HG_SEARCH:%/REPO=%/$(HG_DIRECTORY)) ; \
 368         $(LS) $(HG_SEARCH:%/REPO=%/$(HGTIP_FILENAME)) ) \
 369         2> /dev/null)))))
 370 
 371 # Emit the repo:tip pairs to $@
 372 define GetSourceTips
 373         $(CD) $(SRC_ROOT) ; \
 374         for i in $(REPO_LIST) IGNORE ; do \
 375           if [ "$${i}" = "IGNORE" ] ; then \
 376             continue; \
 377           elif [ -d $${i}/$(HG_DIRECTORY) -a "$(HG_VERSION)" != "" ] ; then \
 378             $(PRINTF) " %s:%s" \
 379                 "$${i}" `$(HG) tip --repository $${i} --template '{node|short}\n'` ; \
 380           elif [ -f $${i}/$(HGTIP_FILENAME) ] ; then \
 381             $(PRINTF) " %s:%s" \
 382                 "$${i}" `$(CAT) $${i}/$(HGTIP_FILENAME)` ; \
 383           fi; \
 384         done >> $@
 385         $(PRINTF) "\n" >> $@
 386 endef
 387 
 388 # Create the HGTIP_FILENAME file. Called from jdk/make/closed/bundles.gmk
 389 define CreateHgTip
 390         $(HG) tip --repository $1 --template '{node|short}\n' > $1/$(HGTIP_FILENAME); \
 391         $(ECHO) $1/$(HGTIP_FILENAME)
 392 endef
 393 
 394 define SetupLogging
 395   ifeq ($$(LOG_LEVEL), trace)
 396     # Shell redefinition trick inspired by http://www.cmcrossroads.com/ask-mr-make/6535-tracing-rule-execution-in-gnu-make
 397     # For each target executed, will print
 398     # Building <TARGET> (from <FIRST PREREQUISITE>) (<ALL NEWER PREREQUISITES> newer)
 399     # but with a limit of 20 on <ALL NEWER PREREQUISITES>, to avoid cluttering logs too much
 400     # (and causing a crash on Cygwin).
 401     # Default shell seems to always be /bin/sh. Must override with bash to get this to work on Solaris.
 402     # Only use time if it's GNU time which supports format and output file.
 403     WRAPPER_SHELL := $$(BASH) $$(SRC_ROOT)/common/bin/shell-tracer.sh $$(if $$(findstring yes,$$(IS_GNU_TIME)),$$(TIME),-) $$(OUTPUT_ROOT)/build-trace-time.log $$(SHELL)
 404     SHELL := $$(warning $$(if $$@,Building $$@,Running shell command) $$(if $$<, (from $$<))$$(if $$?, ($$(wordlist 1, 20, $$?) $$(if $$(wordlist 21, 22, $$?), ... [in total $$(words $$?) files]) newer)))$$(WRAPPER_SHELL)
 405   endif
 406   # Never remove warning messages; this is just for completeness
 407   LOG_WARN :=
 408   ifneq ($$(findstring $$(LOG_LEVEL), info debug trace),)
 409     LOG_INFO :=
 410   else
 411     LOG_INFO := > /dev/null
 412   endif
 413   ifneq ($$(findstring $$(LOG_LEVEL), debug trace),)
 414     LOG_DEBUG :=
 415   else
 416     LOG_DEBUG := > /dev/null
 417   endif
 418   ifneq ($$(findstring $$(LOG_LEVEL), trace),)
 419     LOG_TRACE :=
 420   else
 421     LOG_TRACE := > /dev/null
 422   endif
 423 endef
 424 
 425 # Make sure logging is setup for everyone that includes MakeBase.gmk.
 426 $(eval $(call SetupLogging))
 427 
 428 ################################################################################
 429 # Creates a sequence of increasing numbers (inclusive).
 430 # Param 1 - starting number
 431 # Param 2 - ending number
 432 sequence = \
 433     $(wordlist $1, $2, $(strip \
 434         $(eval SEQUENCE_COUNT :=) \
 435         $(call _sequence-do,$(strip $2))))
 436 
 437 _sequence-do = \
 438     $(if $(word $1, $(SEQUENCE_COUNT)),, \
 439       $(eval SEQUENCE_COUNT += .) \
 440       $(words $(SEQUENCE_COUNT)) \
 441       $(call _sequence-do,$1))
 442 
 443 ################################################################################
 444 
 445 MAX_PARAMS := 30
 446 PARAM_SEQUENCE := $(call sequence, 2, $(MAX_PARAMS))
 447 
 448 # Template for creating a macro taking named parameters. To use it, assign the
 449 # template to a variable with the name you want for your macro, using '='
 450 # assignment. Then define a macro body with the suffix "Body". The Body macro
 451 # should take 1 parameter which should be a unique string for that invocation
 452 # of the macro.
 453 # Ex:
 454 # SetupFoo = $(NamedParamsMacroTemplate)
 455 # define SetupFooBody
 456 #   # do something
 457 #   # access parameters as $$($1_BAR)
 458 # endef
 459 # Call it like this
 460 # $(eval $(call SetupFoo, BUILD_SOMETHING, \
 461 #     BAR := some parameter value, \
 462 # ))
 463 define NamedParamsMacroTemplate
 464   $(if $($(MAX_PARAMS)),$(error Internal makefile error: \
 465       Too many named arguments to macro, please update MAX_PARAMS in MakeBase.gmk))
 466   # Iterate over 2 3 4... and evaluate the named parameters with $1_ as prefix
 467   $(foreach i,$(PARAM_SEQUENCE), $(if $(strip $($i)),\
 468     $(strip $1)_$(strip $($i)))$(NEWLINE))
 469   # Debug print all named parameter names and values
 470   $(if $(findstring $(LOG_LEVEL),debug trace), \
 471     $(info $0 $(strip $1) $(foreach i,$(PARAM_SEQUENCE), \
 472       $(if $(strip $($i)),$(NEWLINE) $(strip [$i] $(if $(filter $(LOG_LEVEL), trace), \
 473         $($i), $(wordlist 1, 20, $($(i))) $(if $(word 21, $($(i))), ...)))))))
 474 
 475   $(if $(DEBUG_$(strip $1)),
 476     $(info -------- <<< Begin expansion of $(strip $1)) \
 477     $(info $(call $(0)Body,$(strip $1))) \
 478     $(info -------- >>> End expansion of $(strip $1)) \
 479   )
 480 
 481   $(call $(0)Body,$(strip $1))
 482 endef
 483 
 484 ################################################################################
 485 # Make directory without forking mkdir if not needed
 486 MakeDir = \
 487     $(strip $(if $(subst $(wildcard $1 $2 $3 $4 $5 $6 $7 $8 $9),,$(strip $1 $2 $3 $4 $5 $6 $7 $8 $9)),\
 488       $(shell $(MKDIR) -p $1 $2 $3 $4 $5 $6 $7 $8 $9)))
 489 
 490 ################################################################################
 491 # Assign a variable only if it is empty
 492 # Param 1 - Variable to assign
 493 # Param 2 - Value to assign
 494 SetIfEmpty = \
 495     $(if $($(strip $1)),,$(eval $(strip $1) := $2))
 496 
 497 ################################################################################
 498 
 499 ifeq ($(OPENJDK_TARGET_OS),solaris)
 500   # On Solaris, if the target is a symlink and exists, cp won't overwrite.
 501   # Cp has to operate in recursive mode to allow for -P flag, to preserve soft links. If the
 502   # name of the target file differs from the source file, rename after copy.
 503   # If the source and target parent directories are the same, recursive copy doesn't work
 504   # so we fall back on regular copy, which isn't preserving symlinks.
 505   define install-file
 506         $(MKDIR) -p '$(@D)'
 507         $(RM) '$@'
 508         if [ "$(@D)" != "$(<D)" ]; then \
 509           $(CP) -f -r -P '$<' '$(@D)'; \
 510           if [ "$(@F)" != "$(<F)" ]; then \
 511             $(MV) '$(@D)/$(<F)' '$@'; \
 512           fi; \
 513         else \
 514           if [ -L '$<' ]; then \
 515             $(ECHO) "Source file is a symlink and target is in the same directory: $< $@" ; \
 516             exit 1; \
 517           fi; \
 518           $(CP) -f '$<' '$@'; \
 519         fi
 520   endef
 521 else ifeq ($(OPENJDK_TARGET_OS),macosx)
 522   # On mac, extended attributes sometimes creep into the source files, which may later
 523   # cause the creation of ._* files which confuses testing. Clear these with xattr if
 524   # set. Some files get their write permissions removed after being copied to the
 525   # output dir. When these are copied again to images, xattr would fail. By only clearing
 526   # attributes when they are present, failing on this is avoided.
 527   define install-file
 528         $(MKDIR) -p '$(@D)'
 529         $(CP) -fRP '$<' '$@'
 530         if [ -n "`$(XATTR) -l '$@'`" ]; then $(XATTR) -c '$@'; fi
 531   endef
 532 else
 533   # Running mkdir and cp in the same shell speeds up copy intensive tasks in Cygwin
 534   # significantly.
 535   define install-file
 536         $(MKDIR) -p '$(@D)' && $(CP) -fP '$<' '$@'
 537   endef
 538 endif
 539 
 540 ################################################################################
 541 # Convenience functions for working around make's limitations with $(filter ).
 542 containing = \
 543     $(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),$v)))
 544 not-containing = \
 545     $(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),,$v)))
 546 
 547 # Filter out duplicate sub strings while preserving order. Keeps the first occurance.
 548 uniq = \
 549     $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
 550 
 551 # Return a list of all string elements that are duplicated in $1.
 552 dups = \
 553     $(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \
 554         $(words $(filter $v, $1))), $v)))
 555 
 556 # String equals
 557 equals = \
 558     $(and $(findstring $(strip $1),$(strip $2)),\
 559         $(findstring $(strip $2),$(strip $1)))
 560 
 561 ################################################################################
 562 
 563 ifneq ($(DISABLE_CACHE_FIND), true)
 564   # In Cygwin, finds are very costly, both because of expensive forks and because
 565   # of bad file system caching. Find is used extensively in $(shell) commands to
 566   # find source files. This makes rerunning make with no or few changes rather
 567   # expensive. To speed this up, these two macros are used to cache the results
 568   # of simple find commands for reuse.
 569   #
 570   # Runs a find and stores both the directories where it was run and the results.
 571   # This macro can be called multiple times to add to the cache. Only finds files
 572   # with no filters.
 573   #
 574   # Needs to be called with $(eval )
 575   #
 576   # Even if the performance benifit is negligible on other platforms, keep the
 577   # functionality active unless explicitly disabled to exercise it more.
 578   #
 579   # Initialize FIND_CACHE_DIRS with := to make it a non recursively-expanded variable
 580   FIND_CACHE_DIRS :=
 581   # Param 1 - Dirs to find in
 582   # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
 583   define FillCacheFind
 584     # Filter out already cached dirs. The - is needed when FIND_CACHE_DIRS is empty
 585     # since filter out will then return empty.
 586     FIND_CACHE_NEW_DIRS := $$(filter-out $$(addsuffix /%,\
 587         - $(FIND_CACHE_DIRS)) $(FIND_CACHE_DIRS), $1)
 588     ifneq ($$(FIND_CACHE_NEW_DIRS), )
 589       # Remove any trailing slash from dirs in the cache dir list
 590       FIND_CACHE_DIRS += $$(patsubst %/,%, $$(FIND_CACHE_NEW_DIRS))
 591       FIND_CACHE := $$(sort $$(FIND_CACHE) $$(shell $(FIND) $$(FIND_CACHE_NEW_DIRS) \( -type f -o -type l \) $2))
 592     endif
 593   endef
 594 
 595   # Mimics find by looking in the cache if all of the directories have been cached.
 596   # Otherwise reverts to shell find. This is safe to call on all platforms, even if
 597   # cache is deactivated.
 598   #
 599   # $1 can be either a directory or a file. If it's a directory, make
 600   # sure we have exactly one trailing slash before the wildcard.
 601   # The extra - is needed when FIND_CACHE_DIRS is empty but should be harmless.
 602   #
 603   # Param 1 - Dirs to find in
 604   # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
 605   define CacheFind
 606     $(if $(filter-out $(addsuffix /%,- $(FIND_CACHE_DIRS)) $(FIND_CACHE_DIRS),$1), \
 607     $(shell $(FIND) $1 \( -type f -o -type l \) $2), \
 608     $(filter $(addsuffix /%,$(patsubst %/,%,$1)) $1,$(FIND_CACHE)))
 609   endef
 610 
 611 else
 612   # If CacheFind is disabled, just run the find command.
 613   # Param 1 - Dirs to find in
 614   # Param 2 - (optional) specialization. Normally "-a \( ... \)" expression.
 615   define CacheFind
 616     $(shell $(FIND) $1 \( -type f -o -type l \) $2)
 617   endef
 618 endif
 619 
 620 ################################################################################
 621 
 622 define AddFileToCopy
 623   # Helper macro for SetupCopyFiles
 624   # 1 : Source file
 625   # 2 : Dest file
 626   # 3 : Variable to add targets to
 627   # 4 : Macro to call for copy operation
 628   $2: $1
 629         $(ECHO) $(LOG_INFO) Copying $$(patsubst $(OUTPUT_ROOT)/%,%,$$@)
 630         $$($$(strip $4))
 631 
 632   $3 += $2
 633 endef
 634 
 635 # Setup make rules for copying files, with an option to do more complex
 636 # processing instead of copying.
 637 #
 638 # Parameter 1 is the name of the rule. This name is used as variable prefix,
 639 # and the targets generated are listed in a variable by that name.
 640 #
 641 # Remaining parameters are named arguments. These include:
 642 #   SRC     : Source root dir (defaults to dir of first file)
 643 #   DEST    : Dest root dir
 644 #   FILES   : List of files to copy with absolute paths, or path relative to SRC.
 645 #             Must be in SRC.
 646 #   FLATTEN : Set to flatten the directory structure in the DEST dir.
 647 #   MACRO   : Optionally override the default macro used for making the copy.
 648 #             Default is 'install-file'
 649 SetupCopyFiles = $(NamedParamsMacroTemplate)
 650 define SetupCopyFilesBody
 651 
 652   ifeq ($$($1_MACRO), )
 653     $1_MACRO := install-file
 654   endif
 655 
 656   # Default SRC to the dir of the first file.
 657   ifeq ($$($1_SRC), )
 658     $1_SRC := $$(dir $$(firstword $$($1_FILES)))
 659   endif
 660 
 661   # Remove any trailing slash from SRC
 662   $1_SRC := $$(patsubst %/,%,$$($1_SRC))
 663 
 664   $$(foreach f, $$(patsubst $$($1_SRC)/%,%,$$($1_FILES)), \
 665       $$(eval $$(call AddFileToCopy, $$($1_SRC)/$$f, \
 666       $$($1_DEST)/$$(if $$($1_FLATTEN),$$(notdir $$f),$$f), $1, $$($1_MACRO))))
 667 
 668 endef
 669 
 670 ################################################################################
 671 # ShellQuote
 672 #
 673 # Quotes a string with single quotes and replaces single quotes with '\'' so
 674 # that the contents survives being given to the shell.
 675 
 676 ShellQuote = \
 677     $(SQUOTE)$(subst $(SQUOTE),$(SQUOTE)\$(SQUOTE)$(SQUOTE),$(strip $1))$(SQUOTE)
 678 
 679 ################################################################################
 680 # Write to and read from file
 681 
 682 # Param 1 - File to read
 683 ReadFile = \
 684     $(shell $(CAT) $1)
 685 
 686 # Param 1 - Text to write
 687 # Param 2 - File to write to
 688 # Use printf to get consistent behavior on all platforms.
 689 WriteFile = \
 690     $(shell $(PRINTF) "%s" $(call ShellQuote, $1) > $2)
 691 
 692 ################################################################################
 693 # DependOnVariable
 694 #
 695 # This macro takes a variable name and puts the value in a file only if the
 696 # value has changed since last. The name of the file is returned. This can be
 697 # used to create rule dependencies on make variable values. The following
 698 # example would get rebuilt if the value of SOME_VAR was changed:
 699 #
 700 # path/to/some-file: $(call DependOnVariable, SOME_VAR)
 701 #         echo $(SOME_VAR) > $@
 702 #
 703 # Note that leading and trailing white space in the value is ignored.
 704 #
 705 
 706 # Defines the sub directory structure to store variable value file in
 707 DependOnVariableDirName = \
 708     $(strip $(subst $(SRC_ROOT)/,,\
 709         $(if $(filter /%, $(firstword $(MAKEFILE_LIST))), \
 710           $(firstword $(MAKEFILE_LIST)), \
 711           $(CURDIR)/$(firstword $(MAKEFILE_LIST)))))
 712 
 713 # Defines the name of the file to store variable value in. Generates a name
 714 # unless parameter 2 is given.
 715 # Param 1 - Name of variable
 716 # Param 2 - (optional) name of file to store value in
 717 DependOnVariableFileName = \
 718     $(strip $(if $(strip $2), $2, \
 719       $(MAKESUPPORT_OUTPUTDIR)/vardeps/$(DependOnVariableDirName)/$(strip $1).vardeps))
 720 
 721 # Does the actual work with parameters stripped.
 722 # If the file exists AND the contents is the same as the variable, do nothing
 723 # else print a new file.
 724 # Always returns the name of the file where the value was printed.
 725 # Param 1 - Name of variable
 726 # Param 2 - (optional) name of file to store value in
 727 DependOnVariableHelper = \
 728     $(strip $(if $(and $(wildcard $(call DependOnVariableFileName, $1, $2)),\
 729         $(call equals, $(strip $($1)), \
 730             $(call ReadFile, $(call DependOnVariableFileName, $1, $2)))),,\
 731       $(call MakeDir, $(dir $(call DependOnVariableFileName, $1, $2))) \
 732       $(if $(findstring $(LOG_LEVEL), trace), \
 733           $(info Variable $1: >$(strip $($1))<) \
 734           $(info File: >$(call ReadFile, $(call DependOnVariableFileName, $1, $2))<)) \
 735       $(call WriteFile, $($1), $(call DependOnVariableFileName, $1, $2))) \
 736     $(call DependOnVariableFileName, $1, $2))
 737 
 738 # Main macro
 739 # Param 1 - Name of variable
 740 # Param 2 - (optional) name of file to store value in
 741 DependOnVariable = \
 742     $(call DependOnVariableHelper,$(strip $1),$(strip $2))
 743 
 744 ################################################################################
 745 
 746 # Hook to include the corresponding custom file, if present.
 747 $(eval $(call IncludeCustomExtension, , common/MakeBase.gmk))
 748 
 749 endif # _MAKEBASE_GMK