Makefile

   1 # Makefile for QEMU.
   2
   3 # Always point to the root of the build tree (needs GNU make).
   4 BUILD_DIR=$(CURDIR)
   5
   6 # All following code might depend on configuration variables
   7 ifneq ($(wildcard config-host.mak),)
   8 # Put the all: rule here so that config-host.mak can contain dependencies.
   9 all:
  10 include config-host.mak
  11
  12 # Check that we're not trying to do an out-of-tree build from
  13 # a tree that's been used for an in-tree build.
  14 ifneq ($(realpath $(SRC_PATH)),$(realpath .))
  15 ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
  16 $(error This is an out of tree build but your source tree ($(SRC_PATH)) \
  17 seems to have been used for an in-tree build. You can fix this by running \
  18 "make distclean && rm -rf *-linux-user *-softmmu" in your source tree)
  19 endif
  20 endif
  21
  22 include $(SRC_PATH)/rules.mak
  23 config-host.mak: $(SRC_PATH)/configure
  24         @echo $@ is out-of-date, running configure
  25         @sed -n "/.*Configured with/s/[^:]*: //p" $@ | sh
  26 else
  27 config-host.mak:
  28 ifneq ($(filter-out %clean,$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
  29         @echo "Please call configure before running make!"
  30         @exit 1
  31 endif
  32 endif
  33
  34 GENERATED_HEADERS = config-host.h trace.h qemu-options.def
  35 ifeq ($(TRACE_BACKEND),dtrace)
  36 GENERATED_HEADERS += trace-dtrace.h
  37 endif
  38 GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h
  39 GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c trace.c
  40
  41 # Don't try to regenerate Makefile or configure
  42 # We don't generate any of them
  43 Makefile: ;
  44 configure: ;
  45
  46 .PHONY: all clean cscope distclean dvi html info install install-doc \
  47         pdf recurse-all speed test dist
  48
  49 $(call set-vpath, $(SRC_PATH))
  50
  51 LIBS+=-lz $(LIBS_TOOLS)
  52
  53 HELPERS-$(CONFIG_LINUX) = qemu-bridge-helper$(EXESUF)
  54
  55 ifdef BUILD_DOCS
  56 DOCS=qemu-doc.html qemu-tech.html qemu.1 qemu-img.1 qemu-nbd.8 QMP/qmp-commands.txt
  57 ifdef CONFIG_VIRTFS
  58 DOCS+=fsdev/virtfs-proxy-helper.1
  59 endif
  60 else
  61 DOCS=
  62 endif
  63
  64 SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory) BUILD_DIR=$(BUILD_DIR)
  65 SUBDIR_DEVICES_MAK=$(patsubst %, %/config-devices.mak, $(TARGET_DIRS))
  66 SUBDIR_DEVICES_MAK_DEP=$(patsubst %, %/config-devices.mak.d, $(TARGET_DIRS))
  67
  68 ifeq ($(SUBDIR_DEVICES_MAK),)
  69 config-all-devices.mak:
  70         $(call quiet-command,echo '# no devices' > $@,"  GEN   $@")
  71 else
  72 config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
  73         $(call quiet-command,cat $(SUBDIR_DEVICES_MAK) | grep =y | sort -u > $@,"  GEN   $@")
  74 endif
  75
  76 -include $(SUBDIR_DEVICES_MAK_DEP)
  77
  78 %/config-devices.mak: default-configs/%.mak
  79         $(call quiet-command,$(SHELL) $(SRC_PATH)/scripts/make_device_config.sh $@ $<, "  GEN   $@")
  80         @if test -f $@; then \
  81           if cmp -s $@.old $@; then \
  82             mv $@.tmp $@; \
  83             cp -p $@ $@.old; \
  84           else \
  85             if test -f $@.old; then \
  86               echo "WARNING: $@ (user modified) out of date.";\
  87             else \
  88               echo "WARNING: $@ out of date.";\
  89             fi; \
  90             echo "Run \"make defconfig\" to regenerate."; \
  91             rm $@.tmp; \
  92           fi; \
  93          else \
  94           mv $@.tmp $@; \
  95           cp -p $@ $@.old; \
  96          fi
  97
  98 defconfig:
  99         rm -f config-all-devices.mak $(SUBDIR_DEVICES_MAK)
 100
 101 -include config-all-devices.mak
 102 -include config-all-disas.mak
 103
 104 all: $(DOCS) $(TOOLS) $(HELPERS-y) recurse-all
 105
 106 config-host.h: config-host.h-timestamp
 107 config-host.h-timestamp: config-host.mak
 108 qemu-options.def: $(SRC_PATH)/qemu-options.hx
 109         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $@")
 110
 111 SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
 112
 113 subdir-%:
 114         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $* V="$(V)" TARGET_DIR="$*/" all,)
 115
 116 ifneq ($(wildcard config-host.mak),)
 117 include $(SRC_PATH)/Makefile.objs
 118 endif
 119
 120 subdir-libcacard: $(oslib-obj-y) $(trace-obj-y) qemu-timer-common.o
 121
 122 subdir-pixman: pixman/Makefile
 123         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pixman V="$(V)" all,)
 124
 125 pixman/Makefile: $(SRC_PATH)/pixman/configure
 126         (cd pixman; CFLAGS="$(CFLAGS) -fPIC" $(SRC_PATH)/pixman/configure $(AUTOCONF_HOST) --disable-gtk --disable-shared --enable-static)
 127
 128 $(SRC_PATH)/pixman/configure:
 129         (cd $(SRC_PATH)/pixman; autoreconf -v --install)
 130
 131 $(SUBDIR_RULES): libqemustub.a
 132
 133 $(filter %-softmmu,$(SUBDIR_RULES)): $(universal-obj-y) $(trace-obj-y) $(common-obj-y) $(extra-obj-y)
 134
 135 $(filter %-user,$(SUBDIR_RULES)): $(universal-obj-y) $(trace-obj-y) subdir-libuser
 136
 137 ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
 138 romsubdir-%:
 139         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/",)
 140
 141 ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))
 142
 143 recurse-all: $(SUBDIR_RULES) $(ROMSUBDIR_RULES)
 144
 145 bt-host.o: QEMU_CFLAGS += $(BLUEZ_CFLAGS)
 146
 147 version.o: $(SRC_PATH)/version.rc config-host.h
 148         $(call quiet-command,$(WINDRES) -I. -o $@ $<,"  RC    $(TARGET_DIR)$@")
 149
 150 version-obj-$(CONFIG_WIN32) += version.o
 151
 152 ######################################################################
 153 # Build library with stubs
 154
 155 libqemustub.a: $(stub-obj-y)
 156
 157 ######################################################################
 158 # Support building shared library libcacard
 159
 160 .PHONY: libcacard.la install-libcacard
 161 libcacard.la: $(oslib-obj-y) qemu-timer-common.o $(trace-obj-y)
 162         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C libcacard V="$(V)" TARGET_DIR="$*/" libcacard.la,)
 163
 164 install-libcacard: libcacard.la
 165         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C libcacard V="$(V)" TARGET_DIR="$*/" install-libcacard,)
 166
 167 ######################################################################
 168
 169 qemu-img.o: qemu-img-cmds.h
 170
 171 tools-obj-y = $(oslib-obj-y) $(trace-obj-y) qemu-tool.o qemu-timer.o \
 172         main-loop.o iohandler.o error.o
 173 tools-obj-$(CONFIG_POSIX) += compatfd.o
 174
 175 qemu-img$(EXESUF): qemu-img.o $(tools-obj-y) $(block-obj-y) libqemustub.a
 176 qemu-nbd$(EXESUF): qemu-nbd.o $(tools-obj-y) $(block-obj-y) libqemustub.a
 177 qemu-io$(EXESUF): qemu-io.o cmd.o $(tools-obj-y) $(block-obj-y) libqemustub.a
 178
 179 qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o
 180
 181 vscclient$(EXESUF): LIBS += $(libcacard_libs)
 182 vscclient$(EXESUF): $(libcacard-y) $(oslib-obj-y) $(trace-obj-y) libcacard/vscclient.o libqemustub.a
 183         $(call LINK, $^)
 184
 185 fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/virtio-9p-marshal.o oslib-posix.o $(trace-obj-y)
 186 fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap
 187
 188 qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
 189         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $@")
 190
 191 qemu-ga$(EXESUF): LIBS = $(LIBS_QGA)
 192 qemu-ga$(EXESUF): QEMU_CFLAGS += -I qga/qapi-generated
 193
 194 gen-out-type = $(subst .,-,$(suffix $@))
 195
 196 ifneq ($(wildcard config-host.mak),)
 197 include $(SRC_PATH)/tests/Makefile
 198 endif
 199
 200 qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
 201
 202 qga/qapi-generated/qga-qapi-types.c qga/qapi-generated/qga-qapi-types.h :\
 203 $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
 204         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o qga/qapi-generated -p "qga-" < $<, "  GEN   $@")
 205 qga/qapi-generated/qga-qapi-visit.c qga/qapi-generated/qga-qapi-visit.h :\
 206 $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
 207         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o qga/qapi-generated -p "qga-" < $<, "  GEN   $@")
 208 qga/qapi-generated/qga-qmp-commands.h qga/qapi-generated/qga-qmp-marshal.c :\
 209 $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 210         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -o qga/qapi-generated -p "qga-" < $<, "  GEN   $@")
 211
 212 qapi-types.c qapi-types.h :\
 213 $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
 214         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "." < $<, "  GEN   $@")
 215 qapi-visit.c qapi-visit.h :\
 216 $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
 217         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o "."  < $<, "  GEN   $@")
 218 qmp-commands.h qmp-marshal.c :\
 219 $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 220         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -m -o "." < $<, "  GEN   $@")
 221
 222 QGALIB_GEN=$(addprefix qga/qapi-generated/, qga-qapi-types.h qga-qapi-visit.h qga-qmp-commands.h)
 223 $(qga-obj-y) qemu-ga.o: $(QGALIB_GEN)
 224
 225 qemu-ga$(EXESUF): qemu-ga.o $(qga-obj-y) $(oslib-obj-y) $(trace-obj-y) $(qapi-obj-y) $(qobject-obj-y) $(version-obj-y) libqemustub.a
 226
 227 QEMULIBS=libuser
 228
 229 clean:
 230 # avoid old build problems by removing potentially incorrect old files
 231         rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
 232         rm -f qemu-options.def
 233         find . -name '*.[od]' -exec rm -f {} +
 234         rm -f *.a *.lo $(TOOLS) $(HELPERS-y) qemu-ga TAGS cscope.* *.pod *~ */*~
 235         rm -Rf .libs
 236         rm -f qemu-img-cmds.h
 237         rm -f trace-dtrace.dtrace trace-dtrace.dtrace-timestamp
 238         @# May not be present in GENERATED_HEADERS
 239         rm -f trace-dtrace.h trace-dtrace.h-timestamp
 240         rm -f $(foreach f,$(GENERATED_HEADERS),$(f) $(f)-timestamp)
 241         rm -f $(foreach f,$(GENERATED_SOURCES),$(f) $(f)-timestamp)
 242         rm -rf qapi-generated
 243         rm -rf qga/qapi-generated
 244         $(MAKE) -C tests/tcg clean
 245         for d in $(ALL_SUBDIRS) $(QEMULIBS) libcacard; do \
 246         if test -d $$d; then $(MAKE) -C $$d $@ || exit 1; fi; \
 247         rm -f $$d/qemu-options.def; \
 248         done
 249
 250 VERSION ?= $(shell cat VERSION)
 251
 252 dist: qemu-$(VERSION).tar.bz2
 253
 254 qemu-%.tar.bz2:
 255         $(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
 256
 257 distclean: clean
 258         rm -f config-host.mak config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi qemu-monitor.texi
 259         rm -f config-all-devices.mak config-all-disas.mak
 260         rm -f roms/seabios/config.mak roms/vgabios/config.mak
 261         rm -f qemu-doc.info qemu-doc.aux qemu-doc.cp qemu-doc.cps qemu-doc.dvi
 262         rm -f qemu-doc.fn qemu-doc.fns qemu-doc.info qemu-doc.ky qemu-doc.kys
 263         rm -f qemu-doc.log qemu-doc.pdf qemu-doc.pg qemu-doc.toc qemu-doc.tp
 264         rm -f qemu-doc.vr
 265         rm -f config.log
 266         rm -f linux-headers/asm
 267         rm -f qemu-tech.info qemu-tech.aux qemu-tech.cp qemu-tech.dvi qemu-tech.fn qemu-tech.info qemu-tech.ky qemu-tech.log qemu-tech.pdf qemu-tech.pg qemu-tech.toc qemu-tech.tp qemu-tech.vr
 268         for d in $(TARGET_DIRS) $(QEMULIBS); do \
 269         rm -rf $$d || exit 1 ; \
 270         done
 271         if test -f pixman/config.log; then make -C pixman distclean; fi
 272
 273 KEYMAPS=da     en-gb  et  fr     fr-ch  is  lt  modifiers  no  pt-br  sv \
 274 ar      de     en-us  fi  fr-be  hr     it  lv  nl         pl  ru     th \
 275 common  de-ch  es     fo  fr-ca  hu     ja  mk  nl-be      pt  sl     tr \
 276 bepo
 277
 278 ifdef INSTALL_BLOBS
 279 BLOBS=bios.bin sgabios.bin vgabios.bin vgabios-cirrus.bin \
 280 vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin \
 281 ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc \
 282 pxe-e1000.rom pxe-eepro100.rom pxe-ne2k_pci.rom \
 283 pxe-pcnet.rom pxe-rtl8139.rom pxe-virtio.rom \
 284 qemu-icon.bmp \
 285 bamboo.dtb petalogix-s3adsp1800.dtb petalogix-ml605.dtb \
 286 multiboot.bin linuxboot.bin kvmvapic.bin \
 287 s390-zipl.rom \
 288 spapr-rtas.bin slof.bin \
 289 palcode-clipper
 290 else
 291 BLOBS=
 292 endif
 293
 294 install-doc: $(DOCS)
 295         $(INSTALL_DIR) "$(DESTDIR)$(qemu_docdir)"
 296         $(INSTALL_DATA) qemu-doc.html  qemu-tech.html "$(DESTDIR)$(qemu_docdir)"
 297         $(INSTALL_DATA) QMP/qmp-commands.txt "$(DESTDIR)$(qemu_docdir)"
 298 ifdef CONFIG_POSIX
 299         $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
 300         $(INSTALL_DATA) qemu.1 qemu-img.1 "$(DESTDIR)$(mandir)/man1"
 301         $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man8"
 302         $(INSTALL_DATA) qemu-nbd.8 "$(DESTDIR)$(mandir)/man8"
 303 endif
 304 ifdef CONFIG_VIRTFS
 305         $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
 306         $(INSTALL_DATA) fsdev/virtfs-proxy-helper.1 "$(DESTDIR)$(mandir)/man1"
 307 endif
 308
 309 install-datadir:
 310         $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)"
 311
 312 install-confdir:
 313         $(INSTALL_DIR) "$(DESTDIR)$(qemu_confdir)"
 314
 315 install-sysconfig: install-datadir install-confdir
 316         $(INSTALL_DATA) $(SRC_PATH)/sysconfigs/target/target-x86_64.conf "$(DESTDIR)$(qemu_confdir)"
 317
 318 install: all $(if $(BUILD_DOCS),install-doc) install-sysconfig install-datadir
 319         $(INSTALL_DIR) "$(DESTDIR)$(bindir)"
 320 ifneq ($(TOOLS),)
 321         $(INSTALL_PROG) $(STRIP_OPT) $(TOOLS) "$(DESTDIR)$(bindir)"
 322 endif
 323 ifneq ($(HELPERS-y),)
 324         $(INSTALL_DIR) "$(DESTDIR)$(libexecdir)"
 325         $(INSTALL_PROG) $(STRIP_OPT) $(HELPERS-y) "$(DESTDIR)$(libexecdir)"
 326 endif
 327 ifneq ($(BLOBS),)
 328         set -e; for x in $(BLOBS); do \
 329                 $(INSTALL_DATA) $(SRC_PATH)/pc-bios/$$x "$(DESTDIR)$(qemu_datadir)"; \
 330         done
 331 endif
 332         $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/keymaps"
 333         set -e; for x in $(KEYMAPS); do \
 334                 $(INSTALL_DATA) $(SRC_PATH)/pc-bios/keymaps/$$x "$(DESTDIR)$(qemu_datadir)/keymaps"; \
 335         done
 336         for d in $(TARGET_DIRS); do \
 337         $(MAKE) -C $$d $@ || exit 1 ; \
 338         done
 339
 340 # various test targets
 341 test speed: all
 342         $(MAKE) -C tests/tcg $@
 343
 344 .PHONY: TAGS
 345 TAGS:
 346         find "$(SRC_PATH)" -name '*.[hc]' -print0 | xargs -0 etags
 347
 348 cscope:
 349         rm -f ./cscope.*
 350         find "$(SRC_PATH)" -name "*.[chsS]" -print | sed 's,^\./,,' > ./cscope.files
 351         cscope -b
 352
 353 # documentation
 354 MAKEINFO=makeinfo
 355 MAKEINFOFLAGS=--no-headers --no-split --number-sections
 356 TEXIFLAG=$(if $(V),,--quiet)
 357 %.dvi: %.texi
 358         $(call quiet-command,texi2dvi $(TEXIFLAG) -I . $<,"  GEN   $@")
 359
 360 %.html: %.texi
 361         $(call quiet-command,LC_ALL=C $(MAKEINFO) $(MAKEINFOFLAGS) --html $< -o $@, \
 362         "  GEN   $@")
 363
 364 %.info: %.texi
 365         $(call quiet-command,$(MAKEINFO) $< -o $@,"  GEN   $@")
 366
 367 %.pdf: %.texi
 368         $(call quiet-command,texi2pdf $(TEXIFLAG) -I . $<,"  GEN   $@")
 369
 370 qemu-options.texi: $(SRC_PATH)/qemu-options.hx
 371         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 372
 373 qemu-monitor.texi: $(SRC_PATH)/hmp-commands.hx
 374         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 375
 376 QMP/qmp-commands.txt: $(SRC_PATH)/qmp-commands.hx
 377         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -q < $< > $@,"  GEN   $@")
 378
 379 qemu-img-cmds.texi: $(SRC_PATH)/qemu-img-cmds.hx
 380         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 381
 382 qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi
 383         $(call quiet-command, \
 384           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu.pod && \
 385           $(POD2MAN) --section=1 --center=" " --release=" " qemu.pod > $@, \
 386           "  GEN   $@")
 387
 388 qemu-img.1: qemu-img.texi qemu-img-cmds.texi
 389         $(call quiet-command, \
 390           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu-img.pod && \
 391           $(POD2MAN) --section=1 --center=" " --release=" " qemu-img.pod > $@, \
 392           "  GEN   $@")
 393
 394 fsdev/virtfs-proxy-helper.1: fsdev/virtfs-proxy-helper.texi
 395         $(call quiet-command, \
 396           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< fsdev/virtfs-proxy-helper.pod && \
 397           $(POD2MAN) --section=1 --center=" " --release=" " fsdev/virtfs-proxy-helper.pod > $@, \
 398           "  GEN   $@")
 399
 400 qemu-nbd.8: qemu-nbd.texi
 401         $(call quiet-command, \
 402           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu-nbd.pod && \
 403           $(POD2MAN) --section=8 --center=" " --release=" " qemu-nbd.pod > $@, \
 404           "  GEN   $@")
 405
 406 dvi: qemu-doc.dvi qemu-tech.dvi
 407 html: qemu-doc.html qemu-tech.html
 408 info: qemu-doc.info qemu-tech.info
 409 pdf: qemu-doc.pdf qemu-tech.pdf
 410
 411 qemu-doc.dvi qemu-doc.html qemu-doc.info qemu-doc.pdf: \
 412         qemu-img.texi qemu-nbd.texi qemu-options.texi \
 413         qemu-monitor.texi qemu-img-cmds.texi
 414
 415 # Add a dependency on the generated files, so that they are always
 416 # rebuilt before other object files
 417 ifneq ($(filter-out %clean,$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
 418 Makefile: $(GENERATED_HEADERS)
 419 endif
 420
 421 # Include automatically generated dependency files
 422 # Dependencies in Makefile.objs files come from our recursive subdir rules
 423 -include $(wildcard *.d tests/*.d)