Thu, 13 Jun 2013 22:02:40 -0700
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
Reviewed-by: dholmes, coleenp
Contributed-by: jeremymanson@google.com, calvin.cheung@oracle.com
1 #
2 # Copyright (c) 2005, 2013, 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.
8 #
9 # This code is distributed in the hope that it will be useful, but WITHOUT
10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 # version 2 for more details (a copy is included in the LICENSE file that
13 # accompanied this code).
14 #
15 # You should have received a copy of the GNU General Public License version
16 # 2 along with this work; if not, write to the Free Software Foundation,
17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 #
19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 # or visit www.oracle.com if you need additional information or have any
21 # questions.
22 #
23 #
25 # Usage:
26 #
27 # $(MAKE) -f buildtree.make SRCARCH=srcarch BUILDARCH=buildarch LIBARCH=libarch
28 # GAMMADIR=dir OS_FAMILY=os VARIANT=variant
29 #
30 # The macros ARCH, GAMMADIR, OS_FAMILY and VARIANT must be defined in the
31 # environment or on the command-line:
32 #
33 # ARCH - sparc, i486, ... HotSpot cpu and os_cpu source directory
34 # BUILDARCH - build directory
35 # LIBARCH - the corresponding directory in JDK/JRE
36 # GAMMADIR - top of workspace
37 # OS_FAMILY - operating system
38 # VARIANT - core, compiler1, compiler2, or tiered
39 # HOTSPOT_RELEASE_VERSION - <major>.<minor>-b<nn> (11.0-b07)
40 # HOTSPOT_BUILD_VERSION - internal, internal-$(USER_RELEASE_SUFFIX) or empty
41 # JRE_RELEASE_VERSION - <major>.<minor>.<micro> (1.7.0)
42 #
43 # Builds the directory trees with makefiles plus some convenience files in
44 # each directory:
45 #
46 # Makefile - for "make foo"
47 # flags.make - with macro settings
48 # vm.make - to support making "$(MAKE) -v vm.make" in makefiles
49 # adlc.make -
50 # trace.make - generate tracing event and type definitions
51 # jvmti.make - generate JVMTI bindings from the spec (JSR-163)
52 # sa.make - generate SA jar file and natives
53 #
54 # The makefiles are split this way so that "make foo" will run faster by not
55 # having to read the dependency files for the vm.
57 -include $(SPEC)
58 include $(GAMMADIR)/make/scm.make
59 include $(GAMMADIR)/make/defs.make
60 include $(GAMMADIR)/make/altsrc.make
63 # 'gmake MAKE_VERBOSE=y' or 'gmake QUIETLY=' gives all the gory details.
64 QUIETLY$(MAKE_VERBOSE) = @
66 ifeq ($(findstring true, $(JVM_VARIANT_ZERO) $(JVM_VARIANT_ZEROSHARK)), true)
67 PLATFORM_FILE = $(shell dirname $(shell dirname $(shell pwd)))/platform_zero
68 else
69 ifdef USE_SUNCC
70 PLATFORM_FILE = $(GAMMADIR)/make/$(OS_FAMILY)/platform_$(BUILDARCH).suncc
71 else
72 PLATFORM_FILE = $(GAMMADIR)/make/$(OS_FAMILY)/platform_$(BUILDARCH)
73 endif
74 endif
76 # Allow overriding of the arch part of the directory but default
77 # to BUILDARCH if nothing is specified
78 ifeq ($(VARIANTARCH),)
79 VARIANTARCH=$(BUILDARCH)
80 endif
82 ifdef FORCE_TIERED
83 ifeq ($(VARIANT),tiered)
84 PLATFORM_DIR = $(OS_FAMILY)_$(VARIANTARCH)_compiler2
85 else
86 PLATFORM_DIR = $(OS_FAMILY)_$(VARIANTARCH)_$(VARIANT)
87 endif
88 else
89 PLATFORM_DIR = $(OS_FAMILY)_$(VARIANTARCH)_$(VARIANT)
90 endif
92 #
93 # We do two levels of exclusion in the shared directory.
94 # TOPLEVEL excludes are pruned, they are not recursively searched,
95 # but lower level directories can be named without fear of collision.
96 # ALWAYS excludes are excluded at any level in the directory tree.
97 #
99 ALWAYS_EXCLUDE_DIRS = $(SCM_DIRS)
101 ifeq ($(VARIANT),tiered)
102 TOPLEVEL_EXCLUDE_DIRS = $(ALWAYS_EXCLUDE_DIRS) -o -name adlc -o -name agent
103 else
104 ifeq ($(VARIANT),compiler2)
105 TOPLEVEL_EXCLUDE_DIRS = $(ALWAYS_EXCLUDE_DIRS) -o -name adlc -o -name c1 -o -name agent
106 else
107 # compiler1 and core use the same exclude list
108 TOPLEVEL_EXCLUDE_DIRS = $(ALWAYS_EXCLUDE_DIRS) -o -name adlc -o -name opto -o -name libadt -o -name agent
109 endif
110 endif
112 # Get things from the platform file.
113 COMPILER = $(shell sed -n 's/^compiler[ ]*=[ ]*//p' $(PLATFORM_FILE))
115 SIMPLE_DIRS = \
116 $(PLATFORM_DIR)/generated/dependencies \
117 $(PLATFORM_DIR)/generated/adfiles \
118 $(PLATFORM_DIR)/generated/jvmtifiles \
119 $(PLATFORM_DIR)/generated/tracefiles
121 TARGETS = debug fastdebug optimized product
122 SUBMAKE_DIRS = $(addprefix $(PLATFORM_DIR)/,$(TARGETS))
124 # For dependencies and recursive makes.
125 BUILDTREE_MAKE = $(GAMMADIR)/make/$(OS_FAMILY)/makefiles/buildtree.make
127 BUILDTREE_TARGETS = Makefile flags.make flags_vm.make vm.make adlc.make jvmti.make trace.make sa.make
129 BUILDTREE_VARS = GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OS_FAMILY) \
130 SRCARCH=$(SRCARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH) VARIANT=$(VARIANT)
132 # Define variables to be set in flags.make.
133 # Default values are set in make/defs.make.
134 ifeq ($(HOTSPOT_BUILD_VERSION),)
135 HS_BUILD_VER=$(HOTSPOT_RELEASE_VERSION)
136 else
137 HS_BUILD_VER=$(HOTSPOT_RELEASE_VERSION)-$(HOTSPOT_BUILD_VERSION)
138 endif
139 # Set BUILD_USER from system-dependent hints: $LOGNAME, $(whoami)
140 ifndef HOTSPOT_BUILD_USER
141 HOTSPOT_BUILD_USER := $(shell echo $$LOGNAME)
142 endif
143 ifndef HOTSPOT_BUILD_USER
144 HOTSPOT_BUILD_USER := $(shell whoami)
145 endif
146 # Define HOTSPOT_VM_DISTRO based on settings in make/openjdk_distro
147 # or make/hotspot_distro.
148 ifndef HOTSPOT_VM_DISTRO
149 ifeq ($(call if-has-altsrc,$(HS_COMMON_SRC)/,true,false),true)
150 include $(GAMMADIR)/make/hotspot_distro
151 else
152 include $(GAMMADIR)/make/openjdk_distro
153 endif
154 endif
156 # if hotspot-only build and/or OPENJDK isn't passed down, need to set OPENJDK
157 ifndef OPENJDK
158 ifneq ($(call if-has-altsrc,$(HS_COMMON_SRC)/,true,false),true)
159 OPENJDK=true
160 endif
161 endif
163 BUILDTREE_VARS += HOTSPOT_RELEASE_VERSION=$(HS_BUILD_VER) HOTSPOT_BUILD_VERSION= JRE_RELEASE_VERSION=$(JRE_RELEASE_VERSION)
165 BUILDTREE = \
166 $(MAKE) -f $(BUILDTREE_MAKE) $(BUILDTREE_TARGETS) $(BUILDTREE_VARS)
168 BUILDTREE_COMMENT = echo "\# Generated by $(BUILDTREE_MAKE)"
170 all: $(SUBMAKE_DIRS)
172 # Run make in each subdirectory recursively.
173 $(SUBMAKE_DIRS): $(SIMPLE_DIRS) FORCE
174 $(QUIETLY) [ -d $@ ] || { mkdir -p $@; }
175 $(QUIETLY) cd $@ && $(BUILDTREE) TARGET=$(@F)
176 $(QUIETLY) touch $@
178 $(SIMPLE_DIRS):
179 $(QUIETLY) mkdir -p $@
181 # Convenience macro which takes a source relative path, applies $(1) to the
182 # absolute path, and then replaces $(GAMMADIR) in the result with a
183 # literal "$(GAMMADIR)/" suitable for inclusion in a Makefile.
184 gamma-path=$(subst $(GAMMADIR),\$$(GAMMADIR),$(call $(1),$(HS_COMMON_SRC)/$(2)))
186 # This bit is needed to enable local rebuilds.
187 # Unless the makefile itself sets LP64, any environmental
188 # setting of LP64 will interfere with the build.
189 LP64_SETTING/32 = LP64 = \#empty
190 LP64_SETTING/64 = LP64 = 1
192 DATA_MODE/i486 = 32
193 DATA_MODE/sparc = 32
194 DATA_MODE/sparcv9 = 64
195 DATA_MODE/amd64 = 64
197 DATA_MODE = $(DATA_MODE/$(BUILDARCH))
199 flags.make: $(BUILDTREE_MAKE) ../shared_dirs.lst
200 @echo Creating $@ ...
201 $(QUIETLY) ( \
202 $(BUILDTREE_COMMENT); \
203 echo; \
204 echo "Platform_file = $(PLATFORM_FILE)" | sed 's|$(GAMMADIR)|$$(GAMMADIR)|'; \
205 sed -n '/=/s/^ */Platform_/p' < $(PLATFORM_FILE); \
206 echo; \
207 echo "GAMMADIR = $(GAMMADIR)"; \
208 echo "HS_ALT_MAKE = $(HS_ALT_MAKE)"; \
209 echo "OSNAME = $(OSNAME)"; \
210 echo "SYSDEFS = \$$(Platform_sysdefs)"; \
211 echo "SRCARCH = $(SRCARCH)"; \
212 echo "BUILDARCH = $(BUILDARCH)"; \
213 echo "LIBARCH = $(LIBARCH)"; \
214 echo "TARGET = $(TARGET)"; \
215 echo "HS_BUILD_VER = $(HS_BUILD_VER)"; \
216 echo "JRE_RELEASE_VER = $(JRE_RELEASE_VERSION)"; \
217 echo "SA_BUILD_VERSION = $(HS_BUILD_VER)"; \
218 echo "HOTSPOT_BUILD_USER = $(HOTSPOT_BUILD_USER)"; \
219 echo "HOTSPOT_VM_DISTRO = $(HOTSPOT_VM_DISTRO)"; \
220 echo "OPENJDK = $(OPENJDK)"; \
221 echo "$(LP64_SETTING/$(DATA_MODE))"; \
222 echo; \
223 echo "# Used for platform dispatching"; \
224 echo "TARGET_DEFINES = -DTARGET_OS_FAMILY_\$$(Platform_os_family)"; \
225 echo "TARGET_DEFINES += -DTARGET_ARCH_\$$(Platform_arch)"; \
226 echo "TARGET_DEFINES += -DTARGET_ARCH_MODEL_\$$(Platform_arch_model)"; \
227 echo "TARGET_DEFINES += -DTARGET_OS_ARCH_\$$(Platform_os_arch)"; \
228 echo "TARGET_DEFINES += -DTARGET_OS_ARCH_MODEL_\$$(Platform_os_arch_model)"; \
229 echo "TARGET_DEFINES += -DTARGET_COMPILER_\$$(Platform_compiler)"; \
230 echo "CFLAGS += \$$(TARGET_DEFINES)"; \
231 echo; \
232 echo "Src_Dirs_V = \\"; \
233 sed 's/$$/ \\/;s|$(GAMMADIR)|$$(GAMMADIR)|' ../shared_dirs.lst; \
234 echo "$(call gamma-path,altsrc,cpu/$(SRCARCH)/vm) \\"; \
235 echo "$(call gamma-path,commonsrc,cpu/$(SRCARCH)/vm) \\"; \
236 echo "$(call gamma-path,altsrc,os_cpu/$(OS_FAMILY)_$(SRCARCH)/vm) \\"; \
237 echo "$(call gamma-path,commonsrc,os_cpu/$(OS_FAMILY)_$(SRCARCH)/vm) \\"; \
238 echo "$(call gamma-path,altsrc,os/$(OS_FAMILY)/vm) \\"; \
239 echo "$(call gamma-path,commonsrc,os/$(OS_FAMILY)/vm) \\"; \
240 echo "$(call gamma-path,altsrc,os/posix/vm) \\"; \
241 echo "$(call gamma-path,commonsrc,os/posix/vm)"; \
242 echo; \
243 echo "Src_Dirs_I = \\"; \
244 echo "$(call gamma-path,altsrc,share/vm/prims) \\"; \
245 echo "$(call gamma-path,commonsrc,share/vm/prims) \\"; \
246 echo "$(call gamma-path,altsrc,share/vm) \\"; \
247 echo "$(call gamma-path,commonsrc,share/vm) \\"; \
248 echo "$(call gamma-path,altsrc,share/vm/precompiled) \\"; \
249 echo "$(call gamma-path,commonsrc,share/vm/precompiled) \\"; \
250 echo "$(call gamma-path,altsrc,cpu/$(SRCARCH)/vm) \\"; \
251 echo "$(call gamma-path,commonsrc,cpu/$(SRCARCH)/vm) \\"; \
252 echo "$(call gamma-path,altsrc,os_cpu/$(OS_FAMILY)_$(SRCARCH)/vm) \\"; \
253 echo "$(call gamma-path,commonsrc,os_cpu/$(OS_FAMILY)_$(SRCARCH)/vm) \\"; \
254 echo "$(call gamma-path,altsrc,os/$(OS_FAMILY)/vm) \\"; \
255 echo "$(call gamma-path,commonsrc,os/$(OS_FAMILY)/vm) \\"; \
256 echo "$(call gamma-path,altsrc,os/posix/vm) \\"; \
257 echo "$(call gamma-path,commonsrc,os/posix/vm)"; \
258 [ -n "$(CFLAGS_BROWSE)" ] && \
259 echo && echo "CFLAGS_BROWSE = $(CFLAGS_BROWSE)"; \
260 [ -n "$(ENABLE_FULL_DEBUG_SYMBOLS)" ] && \
261 echo && echo "ENABLE_FULL_DEBUG_SYMBOLS = $(ENABLE_FULL_DEBUG_SYMBOLS)"; \
262 [ -n "$(OBJCOPY)" ] && \
263 echo && echo "OBJCOPY = $(OBJCOPY)"; \
264 [ -n "$(STRIP_POLICY)" ] && \
265 echo && echo "STRIP_POLICY = $(STRIP_POLICY)"; \
266 [ -n "$(ZIP_DEBUGINFO_FILES)" ] && \
267 echo && echo "ZIP_DEBUGINFO_FILES = $(ZIP_DEBUGINFO_FILES)"; \
268 [ -n "$(ZIPEXE)" ] && \
269 echo && echo "ZIPEXE = $(ZIPEXE)"; \
270 [ -n "$(HOTSPOT_EXTRA_SYSDEFS)" ] && \
271 echo && \
272 echo "HOTSPOT_EXTRA_SYSDEFS\$$(HOTSPOT_EXTRA_SYSDEFS) = $(HOTSPOT_EXTRA_SYSDEFS)" && \
273 echo "SYSDEFS += \$$(HOTSPOT_EXTRA_SYSDEFS)"; \
274 [ -n "$(INCLUDE_TRACE)" ] && \
275 echo && echo "INCLUDE_TRACE = $(INCLUDE_TRACE)"; \
276 echo; \
277 [ -n "$(SPEC)" ] && \
278 echo "include $(SPEC)"; \
279 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(VARIANT).make"; \
280 echo "include \$$(GAMMADIR)/make/excludeSrc.make"; \
281 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(COMPILER).make"; \
282 ) > $@
284 flags_vm.make: $(BUILDTREE_MAKE) ../shared_dirs.lst
285 @echo Creating $@ ...
286 $(QUIETLY) ( \
287 $(BUILDTREE_COMMENT); \
288 echo; \
289 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(TARGET).make"; \
290 ) > $@
292 ../shared_dirs.lst: $(BUILDTREE_MAKE) $(GAMMADIR)/src/share/vm
293 @echo Creating directory list $@
294 $(QUIETLY) if [ -d $(HS_ALT_SRC)/share/vm ]; then \
295 find $(HS_ALT_SRC)/share/vm/* -prune \
296 -type d \! \( $(TOPLEVEL_EXCLUDE_DIRS) \) -exec find {} \
297 \( $(ALWAYS_EXCLUDE_DIRS) \) -prune -o -type d -print \; > $@; \
298 fi;
299 $(QUIETLY) find $(HS_COMMON_SRC)/share/vm/* -prune \
300 -type d \! \( $(TOPLEVEL_EXCLUDE_DIRS) \) -exec find {} \
301 \( $(ALWAYS_EXCLUDE_DIRS) \) -prune -o -type d -print \; >> $@
303 Makefile: $(BUILDTREE_MAKE)
304 @echo Creating $@ ...
305 $(QUIETLY) ( \
306 $(BUILDTREE_COMMENT); \
307 echo; \
308 echo include flags.make; \
309 echo; \
310 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/top.make"; \
311 ) > $@
313 vm.make: $(BUILDTREE_MAKE)
314 @echo Creating $@ ...
315 $(QUIETLY) ( \
316 $(BUILDTREE_COMMENT); \
317 echo; \
318 echo include flags.make; \
319 echo include flags_vm.make; \
320 echo; \
321 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
322 ) > $@
324 adlc.make: $(BUILDTREE_MAKE)
325 @echo Creating $@ ...
326 $(QUIETLY) ( \
327 $(BUILDTREE_COMMENT); \
328 echo; \
329 echo include flags.make; \
330 echo; \
331 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
332 ) > $@
334 jvmti.make: $(BUILDTREE_MAKE)
335 @echo Creating $@ ...
336 $(QUIETLY) ( \
337 $(BUILDTREE_COMMENT); \
338 echo; \
339 echo include flags.make; \
340 echo; \
341 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
342 ) > $@
344 trace.make: $(BUILDTREE_MAKE)
345 @echo Creating $@ ...
346 $(QUIETLY) ( \
347 $(BUILDTREE_COMMENT); \
348 echo; \
349 echo include flags.make; \
350 echo; \
351 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
352 ) > $@
354 sa.make: $(BUILDTREE_MAKE)
355 @echo Creating $@ ...
356 $(QUIETLY) ( \
357 $(BUILDTREE_COMMENT); \
358 echo; \
359 echo include flags.make; \
360 echo; \
361 echo "include \$$(GAMMADIR)/make/$(OS_FAMILY)/makefiles/$(@F)"; \
362 ) > $@
364 FORCE:
366 .PHONY: all FORCE