aboutsummaryrefslogtreecommitdiff
path: root/common/makefiles/JavaCompilation.gmk
blob: 4301cee1f0b31a3e5598febcb112263d016e1845 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
#
# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

# This makefile is much simpler now that it can use the smart javac wrapper
# for dependency tracking between java packages and incremental compiles.
# It could be even more simple if we added support for incremental jar updates
# directly from the smart javac wrapper.

# Cleaning/copying properties here is not a good solution. The properties
# should be cleaned/copied by a annotation processor in sjavac.

# When you read this source. Remember that $(sort ...) has the side effect
# of removing duplicates. It is actually this side effect that is
# desired whenever sort is used below!

ifeq  (,$(_MAKEBASE_GMK))
    $(error You must include MakeBase.gmk prior to including JavaCompilation.gmk)
endif

FALSE_FIND_PATTERN:=-name FILE_NAME_THAT_DOESNT_EXIST

define SetupJavaCompiler
    # param 1 is for example GENERATE_OLD_BYTECODE or GENERATE_NEW_JDKBYTECODE
    # This is the name of the compiler setup.
    # param 2-9 are named args.
    #   JVM:=The jvm used to run the javac/javah command
    #   JAVAC:=The javac jar and bootstrap classpath changes, or just bin/javac if JVM is left out
    #   FLAGS:=Flags to be supplied to javac
    #   SERVER_DIR:=Use a javac server (-XDserver) and store the server related files here
    #   SERVER_JVM:=Use this JVM for the server. Defaults to the JVM above.
    $(foreach i,2 3 4 5 6 7 8 9 10 11 12 13 14 15, $(if $($i),$1_$(strip $($i)))$(NEWLINE))
    $(call LogSetupMacroEntry,SetupJavaCompiler($1),$2,$3,$4,$5,$6,$7,$8,$9,$(10),$(11),$(12),$(13),$(14),$(15))
    $(if $(16),$(error Internal makefile error: Too many arguments to SetupJavaCompiler, please update JavaCompilation.gmk))

    # The port file contains the tcp/ip on which the server listens
    # and the cookie necessary to talk to the server.
    $1_SJAVAC_PORTFILE:=$$($1_SERVER_DIR)/server.port
    # You can use a different JVM to run the background javac server.
    ifeq ($$($1_SERVER_JVM),)
        # It defaults to the same JVM that is used to start the javac command.
        $1_SERVER_JVM:=$$($1_JVM)
    endif
endef

define SetupArchive
    # param 1 is for example ARCHIVE_MYPACKAGE
    # param 2 are the dependecies
    # param 3,4,5,6,7,8,9 are named args.
    #    SRCS:=List of directories in where to find files to add to archive
    #    SUFFIXES:=File suffixes to include in jar
    #    INCLUDES:=List of directories/packages in SRCS that should be included
    #    EXCLUDES:=List of directories/packages in SRCS that should be excluded
    #    EXCLUDE_FILES:=List of files in SRCS that should be excluded
    #    EXTRA_FILES:=List of files in SRCS that should be included regardless of suffix match.
    #    JAR:=Jar file to create
    #    MANIFEST:=Optional manifest file template.
    #    JARMAIN:=Optional main class to add to manifest
    #    JARINDEX:=true means generate the index in the jar file.
    #    SKIP_METAINF:=Set to prevent contents of an META-INF directory to be automatically 
    #                  added to the archive.
    #    EXTRA_MANIFEST_ATTR:=Extra attribute to add to manifest.
    #    CHECK_COMPRESS_JAR Check the COMPRESS_JAR variable

    # NOTE: $2 is dependencies, not a named argument!
    $(foreach i,3 4 5 6 7 8 9 10 11 12 13 14 15, $(if $($i),$1_$(strip $($i)))$(NEWLINE))
    $(call LogSetupMacroEntry,SetupArchive($1),<dependencies>,$3,$4,$5,$6,$7,$8,$9,$(10),$(11),$(12),$(13),$(14),$(15))
    $(if $(findstring $(LOG_LEVEL),debug trace), $(info *[2] <dependencies> = $(strip $2)))
    $(if $(16),$(error Internal makefile error: Too many arguments to SetupArchive, please update JavaCompilation.gmk))

    $1_JARMAIN:=$(strip $$($1_JARMAIN))
    $1_JARNAME:=$$(notdir $$($1_JAR))
    $1_MANIFEST_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_manifest
    $1_DELETESS_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_deletess
    $1_DELETES_FILE:=$$(dir $$($1_JAR))_the.$$($1_JARNAME)_deletes
    $1_BIN:=$$(dir $$($1_JAR))

    ifeq (,$$($1_SUFFIXES))
        # No suffix was set, default to classes.
        $1_SUFFIXES:=.class
    endif
    # Convert suffixes to a find expression
    $1_FIND_PATTERNS:=$(FALSE_FIND_PATTERN) $$(patsubst %,$(SPACE)-o$(SPACE)-name$(SPACE)$(DQUOTE)*%$(DQUOTE),$$($1_SUFFIXES))
    # On windows, a lot of includes/excludes risk making the command line too long, so 
    # writing the grep patterns to files.
    ifneq (,$$($1_INCLUDES))
        $1_GREP_INCLUDE_PATTERNS:=$$(foreach src,$$($1_SRCS),\
					$$(addprefix $$(src)/,$$($1_INCLUDES)))
        # If there are a lot of include patterns, output to file to shorten command lines
        ifeq ($$(word 20,$$($1_GREP_INCLUDE_PATTERNS)),)
            $1_GREP_INCLUDES:=| $(GREP) $$(patsubst %,$(SPACE)-e$(SPACE)$(DQUOTE)%$(DQUOTE),$$($1_GREP_INCLUDE_PATTERNS))
        else
            $1_GREP_INCLUDE_OUTPUT:=$(RM) $$($1_BIN)/_the.$$($1_JARNAME)_include && \
                                    $$(strip $$(call ListPathsSafely,$1_GREP_INCLUDE_PATTERNS,\n, \
                                        >> $$($1_BIN)/_the.$$($1_JARNAME)_include))
            $1_GREP_INCLUDES:=| $(GREP) -f $$($1_BIN)/_the.$$($1_JARNAME)_include
        endif
    endif
    ifneq (,$$($1_EXCLUDES)$$($1_EXCLUDE_FILES))
        $1_GREP_EXCLUDE_PATTERNS:=$$(foreach src,$$($1_SRCS),$$(addprefix $$(src)/,\
		$$($1_EXCLUDES) $$($1_EXCLUDE_FILES)))
        # If there are a lot of include patterns, output to file to shorten command lines
        ifeq ($$(word 20,$$($1_GREP_EXCLUDE_PATTERNS)),)
            $1_GREP_EXCLUDES:=| $(GREP) -v $$(patsubst %,$(SPACE)-e$(SPACE)$(DQUOTE)%$(DQUOTE),$$($1_GREP_EXCLUDE_PATTERNS))
        else
            $1_GREP_EXCLUDE_OUTPUT=$(RM) $$($1_BIN)/_the.$$($1_JARNAME)_exclude && \
                                    $$(strip $$(call ListPathsSafely,$1_GREP_EXCLUDE_PATTERNS,\n, \
                                        >> $$($1_BIN)/_the.$$($1_JARNAME)_exclude))
            $1_GREP_EXCLUDES:=| $(GREP) -v -f $$($1_BIN)/_the.$$($1_JARNAME)_exclude
        endif
    endif

    # Check if this jar needs to have its index generated.
    ifneq (,$$($1_JARINDEX))
      $1_JARINDEX = (cd $$(dir $$@) && $(JAR) -i $$(notdir $$@))
    else
      $1_JARINDEX = true
    endif
    # When this macro is run in the same makefile as the java compilation, dependencies are 
    # transfered in make variables. When the macro is run in a different makefile than the 
    # java compilation, the dependencies need to be found in the filesystem.
    ifneq (,$2)
        $1_DEPS:=$2
    else
        $1_DEPS:=$$(filter $$(addprefix %,$$($1_SUFFIXES)),\
                    $$(call CacheFind,$$($1_SRCS)))
        ifneq (,$$($1_GREP_INCLUDE_PATTERNS))
            $1_DEPS:=$$(filter $$(addsuffix %,$$($1_GREP_INCLUDE_PATTERNS)),$$($1_DEPS))
        endif
        ifneq (,$$($1_GREP_EXCLUDE_PATTERNS))
            $1_DEPS:=$$(filter-out $$(addsuffix %,$$($1_GREP_EXCLUDE_PATTERNS)),$$($1_DEPS))
        endif
        # The subst of \ is needed because $ has to be escaped with \ in EXTRA_FILES for the command 
        # lines, but not here for use in make dependencies.
        $1_DEPS+=$$(subst \,,$$(foreach src,$$($1_SRCS),$$(addprefix $$(src)/,$$($1_EXTRA_FILES))))
        ifeq (,$$($1_SKIP_METAINF))
            $1_DEPS+=$$(call CacheFind $$(wildcard $$(addsuffix /META-INF,$$($1_SRCS))))
        endif
    endif

    # Utility macros, to make the shell script receipt somewhat easier to dechipher.

    # The capture contents macro finds all files (matching the patterns, typically
    # .class and .prp) that are newer than the jar-file, ie the new content to be put into the jar.
    $1_CAPTURE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                   (($(FIND) $$(src) -type f -a \( $$($1_FIND_PATTERNS) \) -a -newer $$@ $$($1_GREP_INCLUDES) \
                       $$($1_GREP_EXCLUDES) | $(SED) 's|$$(src)/||g' &&\
                       $(ECHO) $$(subst $$(src)/,,$$($1_EXTRA_FILES))) > \
                       $$(src)/_the.$$($1_JARNAME)_contents) $$(NEWLINE))
    # The capture metainf macro finds all files below the META-INF directory that are newer than the jar-file.
    ifeq (,$$($1_SKIP_METAINF))
        $1_CAPTURE_METAINF =$$(foreach src,$$($1_SRCS),($(FIND) $$(src)/META-INF -type f -a -newer $$@ 2> /dev/null | $(SED) 's|$$(src)/||g' >> $$(src)/_the.$$($1_JARNAME)_contents ) $$(NEWLINE))
    endif
    # The capture deletes macro finds all deleted files and concatenates them. The resulting file
    # tells us what to remove from the jar-file.
    $1_CAPTURE_DELETES=$$(foreach src,$$($1_SRCS),($(FIND) $$(src) -name _the.package.deleted -newer $$@ -exec $(SED) 's|$$(src)||g' \{\} >> $$($1_DELETES_FILE) \;) $$(NEWLINE))
    # The update contents macro updates the jar file with the previously capture contents.
    # xargs is used to trim the whitespace from the contents file, to see if it is empty.
    $1_UPDATE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                    (cd $$(src) && \
                     if [ -n "`$(CAT) _the.$$($1_JARNAME)_contents | $(XARGS)`" ]; then \
                         $(ECHO) "  updating" `$(WC) -l _the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'` files && \
                         $(JAR) $$($1_JAR_UPDATE_OPTIONS) $$@ @_the.$$($1_JARNAME)_contents; \
                     fi) $$(NEWLINE))
    # The s-variants of the above macros are used when the jar is created from scratch.
    $1_SCAPTURE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                    (($(FIND) $$(src) -type f -a \( $$($1_FIND_PATTERNS) \) $$($1_GREP_INCLUDES) \
			$$($1_GREP_EXCLUDES) | $(SED) 's|$$(src)/||g' &&\
			$$(subst $$(src)/,,$(ECHO) $$($1_EXTRA_FILES))) > \
			$$(src)/_the.$$($1_JARNAME)_contents) $$(NEWLINE))

    ifeq (,$$($1_SKIP_METAINF))
        $1_SCAPTURE_METAINF=$$(foreach src,$$($1_SRCS),\
                    ($(FIND) $$(src)/META-INF -type f 2> /dev/null | $(SED) 's|$$(src)/||g' >> \
			$$(src)/_the.$$($1_JARNAME)_contents) $$(NEWLINE))
    endif
    $1_SUPDATE_CONTENTS=$$(foreach src,$$($1_SRCS),\
                    (cd $$(src) && $(JAR) $$($1_JAR_UPDATE_OPTIONS) $$@ @$$(src)/_the.$$($1_JARNAME)_contents) $$(NEWLINE))

    # Use a slightly shorter name for logging, but with enough path to identify this jar.
    $1_NAME:=$$(subst $$(OUTPUT_ROOT)/,,$$($1_JAR))

    ifneq (,$$($1_CHECK_COMPRESS_JAR))
        $1_JAR_CREATE_OPTIONS := c0fm
        $1_JAR_UPDATE_OPTIONS := u0f
        ifeq ($(COMPRESS_JARS), true)
            $1_JAR_CREATE_OPTIONS := cfm
            $1_JAR_UPDATE_OPTIONS := uf
        endif
    else
        $1_JAR_CREATE_OPTIONS := cfm
        $1_JAR_UPDATE_OPTIONS := uf
    endif

    # Here is the rule that creates/updates the jar file.
    $$($1_JAR) : $$($1_DEPS)
	$(MKDIR) -p $$($1_BIN)
	$$($1_GREP_INCLUDE_OUTPUT)
	$$($1_GREP_EXCLUDE_OUTPUT)
	$$(if $$($1_MANIFEST),\
		$(SED) -e "s#@@RELEASE@@#$(RELEASE)#"           \
		       -e "s#@@COMPANY_NAME@@#$(COMPANY_NAME)#" $$($1_MANIFEST) > $$($1_MANIFEST_FILE) \
	,\
		$(RM) $$($1_MANIFEST_FILE) && $(TOUCH) $$($1_MANIFEST_FILE))
	$$(if $$($1_JARMAIN),$(ECHO) "Main-Class: $$(strip $$($1_JARMAIN))" >> $$($1_MANIFEST_FILE))
	$$(if $$($1_EXTRA_MANIFEST_ATTR),$(PRINTF) "$$($1_EXTRA_MANIFEST_ATTR)\n" >> $$($1_MANIFEST_FILE))
	$$(if $$(wildcard $$@),\
		$(ECHO) Modifying $$($1_NAME) $$(NEWLINE)\
		$$($1_CAPTURE_CONTENTS) \
		$$($1_CAPTURE_METAINF) \
		$(RM) $$($1_DELETES_FILE) $$(NEWLINE)\
		$$($1_CAPTURE_DELETES) \
		$(CAT) $$($1_DELETES_FILE) > $$($1_DELETESS_FILE) $$(NEWLINE)\
		if [ -s $$($1_DELETESS_FILE) ]; then \
			$(ECHO) "  deleting" `$(WC) -l $$($1_DELETESS_FILE) | $(AWK) '{ print $$$$1 }'` files && \
	                       $(ZIP) -q -d $$@ `$(CAT) $$($1_DELETESS_FILE)` ; \
		fi $$(NEWLINE) \
		$$($1_UPDATE_CONTENTS) true $$(NEWLINE) \
		$$($1_JARINDEX) && true \
	,\
		$(ECHO) Creating $$($1_NAME) && $(JAR) $$($1_JAR_CREATE_OPTIONS) $$@ $$($1_MANIFEST_FILE) $$(NEWLINE) \
	        $$($1_SCAPTURE_CONTENTS) \
		$$($1_SCAPTURE_METAINF) \
		$$($1_SUPDATE_CONTENTS) \
		$$($1_JARINDEX) && true ) 

endef

define SetupZipArchive
    # param 1 is for example ZIP_MYSOURCE
    # param 2,3,4,5,6,7,8,9 are named args.
    #    SRC,ZIP,INCLUDES,INCLUDE_FILES,EXCLUDES,EXCLUDE_FILES,SUFFIXES,EXTRA_DEPS
    $(foreach i,2 3 4 5 6 7 8 9 10 11 12 13 14 15, $(if $($i),$1_$(strip $($i)))$(NEWLINE))
    $(call LogSetupMacroEntry,SetupZipArchive($1),$2,$3,$4,$5,$6,$7,$8,$9,$(10),$(11),$(12),$(13),$(14),$(15))
    $(if $(16),$(error Internal makefile error: Too many arguments to SetupZipArchive, please update JavaCompilation.gmk))

    # Find all files in the source tree.
    $1_ALL_SRCS := $$(call not-containing,_the.,\
            $$(filter $$(addprefix %,$$($1_SUFFIXES)),$$(call CacheFind $$($1_SRC))))

    ifneq ($$($1_INCLUDES),)
        $1_SRC_INCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_INCLUDES))))
        ifneq ($$($1_SUFFIXES),)
            $1_ZIP_INCLUDES := $$(foreach s,$$($1_SUFFIXES),\
		$$(addprefix -i$(SPACE)$(DQUOTE),$$(addsuffix /*$$s$(DQUOTE),$$($1_INCLUDES))))
        else
            $1_ZIP_INCLUDES := $$(addprefix -i$(SPACE)$(DQUOTE),$$(addsuffix /*$(DQUOTE),$$($1_INCLUDES)))
        endif
    endif
    ifneq ($$($1_INCLUDE_FILES),)
        $1_SRC_INCLUDES += $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$($1_INCLUDE_FILES)))
        $1_ZIP_INCLUDES += $$(addprefix -i$(SPACE),$$($1_INCLUDE_FILES))
    endif
    ifneq ($$($1_SRC_INCLUDES),)
        $1_ALL_SRCS     := $$(filter $$($1_SRC_INCLUDES),$$($1_ALL_SRCS))
    endif
    ifneq ($$($1_EXCLUDES),)
        $1_SRC_EXCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_EXCLUDES))))
        $1_ZIP_EXCLUDES := $$(addprefix -x$(SPACE)$(DQUOTE),$$(addsuffix /*$(DQUOTE),$$($1_EXCLUDES)))
        $1_ALL_SRCS     := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_ALL_SRCS))
    endif

    # Use a slightly shorter name for logging, but with enough path to identify this zip.
    $1_NAME:=$$(subst $$(OUTPUT_ROOT)/,,$$($1_ZIP))

    # Now $1_ALL_SRCS should contain all sources that are going to be put into the zip.
    # I.e. the zip -i and -x options should match the filtering done in the makefile.
    # Explicitly excluded files can be given with absolute path. The patsubst solution
    # isn't perfect but the likelyhood of an absolute path to match something in a src
    # dir is very small.
    # If zip has nothing to do, it returns 12 and would fail the build. Check for 12
    # and only fail if it's not.
    $$($1_ZIP) : $$($1_ALL_SRCS) $$($1_EXTRA_DEPS)
		$(MKDIR) -p $$(@D)
		$(ECHO) Updating $$($1_NAME)
		$$(foreach i,$$($1_SRC),(cd $$i && $(ZIP) -qru $$@ . $$($1_ZIP_INCLUDES) $$($1_ZIP_EXCLUDES) -x \*_the.\* $$(addprefix -x$(SPACE),$$(patsubst $$i/%,%,$$($1_EXCLUDE_FILES))) || test "$$$$?" = "12" )$$(NEWLINE)) true
		$(TOUCH) $$@
endef

define add_file_to_copy
    # param 1 = BUILD_MYPACKAGE
    # parma 2 = The source file to copy.
    $2_TARGET:=$2
    # Remove the source prefix. 
    $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$2_TARGET)))
    # Now we can setup the depency that will trigger the copying.
    $$($1_BIN)$$($2_TARGET) : $2
	$(MKDIR) -p $$(@D)
	$(CP) $$< $$@
	$(CHMOD) -f ug+w $$@

    # And do not forget this target
    $1_ALL_COPY_TARGETS += $$($1_BIN)$$($2_TARGET)
endef


# This macro is used only for properties files that are to be
# copied over to the classes directory in cleaned form:
# Previously this was inconsistently done in different repositories.
# This is the new clean standard. Though it is to be superseded by
# a standard annotation processor from with sjavac.
define add_file_to_copy_and_clean
    # param 1 = BUILD_MYPACKAGE
    # parma 2 = The source file to copy and clean.
    $2_TARGET:=$2
    # Remove the source prefix. 
    $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$2_TARGET)))
    # Now we can setup the depency that will trigger the copying.
    $$($1_BIN)$$($2_TARGET) : $2
	$(MKDIR) -p $$(@D)
	$(CAT) $$< | $(SED) -e 's/\([^\\]\):/\1\\:/g' -e  's/\([^\\]\)=/\1\\=/g' -e 's/#.*/#/g' \
                   | $(SED) -f "$(SRC_ROOT)/common/makefiles/support/unicode2x.sed" \
		   | $(SED) -e '/^#/d' -e '/^$$$$/d' \
		            -e :a -e '/\\$$$$/N; s/\\\n//; ta' \
			    -e 's/^[ \t]*//;s/[ \t]*$$$$//' \
			    -e 's/\\=/=/' | LANG=C $(SORT) > $$@
	$(CHMOD) -f ug+w $$@

    # And do not forget this target
    $1_ALL_COPY_CLEAN_TARGETS += $$($1_BIN)$$($2_TARGET)
endef

define remove_string
    $2 := $$(subst $1,,$$($2))
endef

define replace_space_with_pathsep
    $1:=$(subst $(SPACE),$(PATH_SEP),$(strip $(patsubst %,%,$2)))
endef

define SetupJavaCompilation
    # param 1 is for example BUILD_MYPACKAGE
    # param 2,3,4,5,6,7,8 are named args.
    #    SETUP:=must point to a previously setup java compiler, for example: SETUP:=BOOTJAVAC
    #    JVM:=path to ..bin/java
    #    ADD_JAVAC_FLAGS:=javac flags to append to the default ones.
    #    SRC:=one or more directories to search for sources
    #    BIN:=store classes here
    #    INCLUDES:=myapp.foo means will only compile java files in myapp.foo or any of its sub-packages.
    #    EXCLUDES:=myapp.foo means will do not compile java files in myapp.foo or any of its sub-packages.
    #    COPY:=.prp means copy all prp files to the corresponding package in BIN.
    #    CLEAN:=.properties means copy and clean all properties file to the corresponding package in BIN.
    #    COPY_FILES:=myapp/foo/setting.txt means copy this file over to the package myapp/foo
    #    SRCZIP:=Create a src.zip based on the found sources and copied files.
    #    INCLUDE_FILES:="com/sun/SolarisFoobar.java" means only compile this file!
    #    EXCLUDE_FILES:="com/sun/SolarisFoobar.java" means do not compile this particular file!
    #                   "SolarisFoobar.java" means do not compile SolarisFoobar, wherever it is found.
    #    JAVAC_SOURCE_PATH_UGLY_OVERRIDE:=Don't use this. This forces an explicit -sourcepath to javac.
    #                                     Its only here until we cleanup some nasty source code pasta in the jdk.
    #    HEADERS:=path to directory where all generated c-headers are written.
    #    DEPENDS:=Extra dependecy
    $(foreach i,2 3 4 5 6 7 8 9 10 11 12 13 14 15, $(if $($i),$1_$(strip $($i)))$(NEWLINE))
    $(call LogSetupMacroEntry,SetupJavaCompilation($1),$2,$3,$4,$5,$6,$7,$8,$9,$(10),$(11),$(12),$(13),$(14),$(15))
    $(if $(16),$(error Internal makefile error: Too many arguments to SetupJavaCompilation, please update JavaCompilation.gmk))

    # Extract the info from the java compiler setup.
    $1_JVM   := $$($$($1_SETUP)_JVM)
    $1_JAVAC := $$($$($1_SETUP)_JAVAC)
    $1_FLAGS := $$($$($1_SETUP)_FLAGS) $(JAVAC_FLAGS) $$($1_ADD_JAVAC_FLAGS)
    ifeq ($$($1_JAVAC),)
        $$(error The Java compilation $1 refers to a non-existant java compiler setup $$($1_SETUP))
    endif
    $1_SJAVAC_PORTFILE := $$($$($1_SETUP)_SJAVAC_PORTFILE)
    $1_SERVER_JVM := $$($$($1_SETUP)_SERVER_JVM)

    # Handle addons and overrides.
    $1_SRC:=$$(call ADD_SRCS,$$($1_SRC))
    # Make sure the dirs exist.
    $$(foreach d,$$($1_SRC), $$(if $$(wildcard $$d),,$$(error SRC specified to SetupJavaCompilation $1 contains missing directory $$d)))
    $$(eval $$(call MakeDir,$$($1_BIN)))
    # Find all files in the source trees.
    $1_ALL_SRCS += $$(filter-out $(OVR_SRCS),$$(call CacheFind,$$($1_SRC)))
    # Extract the java files.
    ifneq ($$($1_EXCLUDE_FILES),)
        $1_EXCLUDE_FILES_PATTERN:=$$(addprefix %,$$($1_EXCLUDE_FILES))
    endif
    $1_SRCS     := $$(filter-out $$($1_EXCLUDE_FILES_PATTERN),$$(filter %.java,$$($1_ALL_SRCS)))
    ifneq ($$($1_INCLUDE_FILES),)
        $1_INCLUDE_FILES:=$$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$($1_INCLUDE_FILES)))
        $1_SRCS := $$(filter $$($1_INCLUDE_FILES), $$($1_SRCS))
    endif

    # Now we have a list of all java files to compile: $$($1_SRCS)

    # Create the corresponding smart javac wrapper command line.
    $1_SJAVAC_ARGS:=$$(addprefix -x ,$$(addsuffix .*,$$(subst /,.,$$($1_EXCLUDES)))) \
		$$(addprefix -i ,$$(addsuffix .*,$$(subst /,.,$$($1_INCLUDES)))) \
		$$(addprefix -xf *,$$(strip $$($1_EXCLUDE_FILES))) \
		$$(addprefix -if *,$$(strip $$($1_INCLUDE_FILES))) \
		-src "$$(subst $$(SPACE),$$(PATH_SEP),$$(strip $$($1_SRC)))"

    # Prepend the source/bin path to the filter expressions.
    ifneq ($$($1_INCLUDES),)
        $1_SRC_INCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_INCLUDES))))
        $1_SRCS     := $$(filter $$($1_SRC_INCLUDES),$$($1_SRCS))
    endif
    ifneq ($$($1_EXCLUDES),)
        $1_SRC_EXCLUDES := $$(foreach i,$$($1_SRC),$$(addprefix $$i/,$$(addsuffix /%,$$($1_EXCLUDES))))
        $1_SRCS     := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_SRCS))
    endif

    # Find all files to be copied from source to bin.
    ifneq (,$$($1_COPY))
        # Search for all files to be copied.
        $1_ALL_COPIES := $$(filter $$(addprefix %,$$($1_COPY)),$$($1_ALL_SRCS))
        # Copy these explicitly
        $1_ALL_COPIES += $$($1_COPY_FILES)
        # Copy must also respect filters.
        ifneq (,$$($1_INCLUDES))
            $1_ALL_COPIES := $$(filter $$($1_SRC_INCLUDES),$$($1_ALL_COPIES))
        endif
        ifneq (,$$($1_EXCLUDES))
            $1_ALL_COPIES := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_ALL_COPIES))
        endif
        ifneq (,$$($1_EXCLUDE_FILES))
            $1_ALL_COPIES := $$(filter-out $$($1_EXCLUDE_FILES_PATTERN),$$($1_ALL_COPIES))
        endif
        # All files below META-INF are always copied.
        $1_ALL_COPIES += $$(filter $$(addsuffix /META-INF%,$$($1_SRC)),$$($1_ALL_SRCS))
        ifneq (,$$($1_ALL_COPIES))
            # Yep, there are files to be copied!
            $1_ALL_COPY_TARGETS:=
            $$(foreach i,$$($1_ALL_COPIES),$$(eval $$(call add_file_to_copy,$1,$$i)))
            # Now we can depend on $$($1_ALL_COPY_TARGETS) to copy all files!
        endif
    endif

    # Find all property files to be copied and cleaned from source to bin.
    ifneq (,$$($1_CLEAN))
        # Search for all files to be copied.
        $1_ALL_CLEANS := $$(filter $$(addprefix %,$$($1_CLEAN)),$$($1_ALL_SRCS))
        # Copy and clean must also respect filters.
        ifneq (,$$($1_INCLUDES))
            $1_ALL_CLEANS := $$(filter $$($1_SRC_INCLUDES),$$($1_ALL_CLEANS))
        endif
        ifneq (,$$($1_EXCLUDES))
            $1_ALL_CLEANS := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_ALL_CLEANS))
        endif
        ifneq (,$$($1_EXCLUDE_FILES))
            $1_ALL_CLEANS := $$(filter-out $$($1_EXCLUDE_FILES_PATTERN),$$($1_ALL_CLEANS))
        endif
        ifneq (,$$($1_ALL_CLEANS))
            # Yep, there are files to be copied and cleaned!
            $1_ALL_COPY_CLEAN_TARGETS:=
            $$(foreach i,$$($1_ALL_CLEANS),$$(eval $$(call add_file_to_copy_and_clean,$1,$$i)))
            # Now we can depend on $$($1_ALL_COPY_CLEAN_TARGETS) to copy all files!
        endif
    endif

    # Prep the source paths.
    ifneq ($$($1_JAVAC_SOURCE_PATH_UGLY_OVERRIDE),)
      $$(eval $$(call replace_space_with_pathsep,$1_SRCROOTSC,$$($1_JAVAC_SOURCE_PATH_UGLY_OVERRIDE)))
    else
      $$(eval $$(call replace_space_with_pathsep,$1_SRCROOTSC,$$($1_SRC)))
    endif

    # Create a sed expression to remove the source roots and to replace / with .
    # and remove .java at the end. 
    $1_REWRITE_INTO_CLASSES:=$$(foreach i,$$($1_SRC),-e 's|$$i/||g') -e 's|/|.|g' -e 's|.java$$$$||g'

    ifeq ($$($1_DISABLE_SJAVAC)x$$(ENABLE_SJAVAC),xyes)
        ifneq (,$$($1_HEADERS))
            $1_HEADERS_ARG := -h $$($1_HEADERS)
        endif

        # Using sjavac to compile. 
        $1 := $$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS) $$($1_BIN)/javac_state

        # Create SJAVAC variable form JAVAC variable. Expects $1_JAVAC to be 
        # "bootclasspathprepend -cp .../javac.jar com.sun.tools.javac.Main"
        # and javac is simply replaced with sjavac.
        $1_SJAVAC:=$$(subst com.sun.tools.javac.Main,com.sun.tools.sjavac.Main,$$($1_JAVAC))

        # Set the $1_REMOTE to spawn a background javac server.
        $1_REMOTE:=--server:portfile=$$($1_SJAVAC_PORTFILE),id=$1,sjavac=$$(subst $$(SPACE),%20,$$(subst $$(COMMA),%2C,$$(strip $$($1_SERVER_JVM) $$($1_SJAVAC))))

        $$($1_BIN)/javac_state: $$($1_SRCS) $$($1_DEPENDS)
		$(MKDIR) -p $$(@D)
		$$(call ListPathsSafely,$1_SRCS,\n, >> $$($1_BIN)/_the.batch.tmp)
		$(ECHO) Compiling $1
		($$($1_JVM) $$($1_SJAVAC) \
			$$($1_REMOTE) \
			-j $(JOBS) \
			--permit-unidentified-artifacts \
			--permit-sources-without-package \
			--compare-found-sources $$($1_BIN)/_the.batch.tmp \
			--log=$(LOG_LEVEL) \
			$$($1_SJAVAC_ARGS) \
			$$($1_FLAGS) \
			$$($1_HEADERS_ARG) \
			-d $$($1_BIN) && \
			$(MV) $$($1_BIN)/_the.batch.tmp $$($1_BIN)/_the.batch)
    else
        # Using plain javac to batch compile everything.
        $1 := $$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS) $$($1_BIN)/_the.batch

        # When buliding in batch, put headers in a temp dir to filter out those that actually
        # changed before copying them to the real header dir.
        ifneq (,$$($1_HEADERS))
            $1_HEADERS_ARG := -h $$($1_HEADERS).tmp

            $$($1_HEADERS)/_the.headers: $$($1_BIN)/_the.batch
		$(MKDIR) -p $$(@D)
		for f in `ls $$($1_HEADERS).tmp`; do \
		  if [ ! -f "$$($1_HEADERS)/$$$$f" ] || [ "`$(DIFF) $$($1_HEADERS)/$$$$f $$($1_HEADERS).tmp/$$$$f`" != "" ]; then \
		    $(CP) -f $$($1_HEADERS).tmp/$$$$f $$($1_HEADERS)/$$$$f; \
		  fi; \
		done
		$(RM) -r $$($1_HEADERS).tmp
		$(TOUCH) $$@

            $1 += $$($1_HEADERS)/_the.headers
        endif

        # When not using sjavac, pass along all sources to javac using an @file.
        $$($1_BIN)/_the.batch: $$($1_SRCS) $$($1_DEPENDS)
		$(MKDIR) -p $$(@D)
		$(RM) $$($1_BIN)/_the.batch $$($1_BIN)/_the.batch.tmp
		$$(call ListPathsSafely,$1_SRCS,\n, >> $$($1_BIN)/_the.batch.tmp)
		$(ECHO) Compiling `$(WC) $$($1_BIN)/_the.batch.tmp | $(TR) -s ' ' | $(CUT) -f 2 -d ' '` files for $1
		($$($1_JVM) $$($1_JAVAC) $$($1_FLAGS) \
			-implicit:none -sourcepath "$$($1_SRCROOTSC)" \
			-d $$($1_BIN) $$($1_HEADERS_ARG) @$$($1_BIN)/_the.batch.tmp && \
			$(MV) $$($1_BIN)/_the.batch.tmp $$($1_BIN)/_the.batch)

    endif

    # Check if a jar file was specified, then setup the rules for the jar.
    ifneq (,$$($1_JAR))
        # If no suffixes was explicitly set for this jar file.
        # Use class and the cleaned/copied properties file suffixes as the default
        # for the types of files to be put into the jar.
        ifeq (,$$($1_SUFFIXES))
            $1_SUFFIXES:=.class $$($1_CLEAN) $$($1_COPY)
        endif

        $$(eval $$(call SetupArchive,ARCHIVE_$1,$$($1),\
		SRCS:=$$($1_BIN),\
		SUFFIXES:=$$($1_SUFFIXES),\
		EXCLUDE:=$$($1_EXCLUDES),\
		INCLUDES:=$$($1_INCLUDES),\
		EXTRA_FILES:=$$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS),\
		JAR:=$$($1_JAR),\
		JARMAIN:=$$($1_JARMAIN),\
		MANIFEST:=$$($1_MANIFEST),\
		EXTRA_MANIFEST_ATTR:=$$($1_EXTRA_MANIFEST_ATTR),\
		JARINDEX:=$$($1_JARINDEX),\
		HEADERS:=$$($1_HEADERS),\
		SETUP:=$$($1_SETUP)))
    endif

    # Check if a srczip was specified, then setup the rules for the srczip.
    ifneq (,$$($1_SRCZIP))
        $$(eval $$(call SetupZipArchive,ARCHIVE_$1,\
		SRC:=$$($1_SRC),\
		ZIP:=$$($1_SRCZIP),\
		INCLUDES:=$$($1_INCLUDES),\
		EXCLUDES:=$$($1_EXCLUDES),\
		EXCLUDE_FILES:=$$($1_EXCLUDE_FILES)))
    endif

endef