Makefile

   1 # Makefile for QEMU.
   2
   3 ifneq ($(words $(subst :, ,$(CURDIR))), 1)
   4   $(error main directory cannot contain spaces nor colons)
   5 endif
   6
   7 # Always point to the root of the build tree (needs GNU make).
   8 BUILD_DIR=$(CURDIR)
   9
  10 # Before including a proper config-host.mak, assume we are in the source tree
  11 SRC_PATH=.
  12
  13 # Don't use implicit rules or variables
  14 # we have explicit rules for everything
  15 MAKEFLAGS += -rR
  16
  17 SHELL = bash -o pipefail
  18
  19 # Usage: $(call quiet-command,command and args,"NAME","args to print")
  20 # This will run "command and args", and either:
  21 #  if V=1 just print the whole command and args
  22 #  otherwise print the 'quiet' output in the format "  NAME     args to print"
  23 # NAME should be a short name of the command, 7 letters or fewer.
  24 # If called with only a single argument, will print nothing in quiet mode.
  25 quiet-command-run = $(if $(V),,$(if $2,printf "  %-7s %s\n" $2 $3 && ))$1
  26 quiet-@ = $(if $(V),,@)
  27 quiet-command = $(quiet-@)$(call quiet-command-run,$1,$2,$3)
  28
  29 UNCHECKED_GOALS := TAGS gtags cscope ctags dist \
  30     help check-help print-% \
  31     docker docker-% lcitool-refresh vm-help vm-test vm-build-%
  32
  33 all:
  34 .PHONY: all clean distclean recurse-all dist msi FORCE
  35
  36 # Don't try to regenerate Makefile or configure
  37 # We don't generate any of them
  38 Makefile: ;
  39 configure: ;
  40
  41 # All following code might depend on configuration variables
  42 ifneq ($(wildcard config-host.mak),)
  43 include config-host.mak
  44
  45 include Makefile.prereqs
  46 Makefile.prereqs: config-host.mak
  47
  48 # 0. ensure the build tree is okay
  49
  50 # Check that we're not trying to do an out-of-tree build from
  51 # a tree that's been used for an in-tree build.
  52 ifneq ($(realpath $(SRC_PATH)),$(realpath .))
  53 ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
  54 $(error This is an out of tree build but your source tree ($(SRC_PATH)) \
  55 seems to have been used for an in-tree build. You can fix this by running \
  56 "$(MAKE) distclean && rm -rf *-linux-user *-softmmu" in your source tree)
  57 endif
  58 endif
  59
  60 # force a rerun of configure if config-host.mak is too old or corrupted
  61 ifeq ($(MESON),)
  62 .PHONY: config-host.mak
  63 x := $(shell rm -rf meson-private meson-info meson-logs)
  64 endif
  65 ifeq ($(NINJA),)
  66 .PHONY: config-host.mak
  67 x := $(shell rm -rf meson-private meson-info meson-logs)
  68 else
  69 export NINJA
  70 endif
  71 ifeq ($(wildcard build.ninja),)
  72 .PHONY: config-host.mak
  73 x := $(shell rm -rf meson-private meson-info meson-logs)
  74 endif
  75 ifeq ($(origin prefix),file)
  76 .PHONY: config-host.mak
  77 x := $(shell rm -rf meson-private meson-info meson-logs)
  78 endif
  79
  80 # 1. ensure config-host.mak is up-to-date
  81 config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/scripts/meson-buildoptions.sh $(SRC_PATH)/VERSION
  82         @echo config-host.mak is out-of-date, running configure
  83         @if test -f meson-private/coredata.dat; then \
  84           ./config.status --skip-meson; \
  85         else \
  86           ./config.status; \
  87         fi
  88
  89 # 2. meson.stamp exists if meson has run at least once (so ninja reconfigure
  90 # works), but otherwise never needs to be updated
  91
  92 meson-private/coredata.dat: meson.stamp
  93 meson.stamp: config-host.mak
  94         @touch meson.stamp
  95
  96 # 3. ensure meson-generated build files are up-to-date
  97
  98 ifneq ($(NINJA),)
  99 Makefile.ninja: build.ninja
 100         $(quiet-@){ \
 101           echo 'ninja-targets = \'; \
 102           $(NINJA) -t targets all | sed 's/:.*//; $$!s/$$/ \\/'; \
 103           echo 'build-files = \'; \
 104           $(NINJA) -t query build.ninja | sed -n '1,/^  input:/d; /^  outputs:/q; s/$$/ \\/p'; \
 105         } > $@.tmp && mv $@.tmp $@
 106 -include Makefile.ninja
 107 endif
 108
 109 ifneq ($(MESON),)
 110 # The path to meson always points to pyvenv/bin/meson, but the absolute
 111 # paths could change.  In that case, force a regeneration of build.ninja.
 112 # Note that this invocation of $(NINJA), just like when Make rebuilds
 113 # Makefiles, does not include -n.
 114 build.ninja: build.ninja.stamp
 115 $(build-files):
 116 build.ninja.stamp: meson.stamp $(build-files)
 117         @if test "$$(cat build.ninja.stamp)" = "$(MESON)" && test -n "$(NINJA)"; then \
 118           $(NINJA) build.ninja; \
 119         else \
 120           echo "$(MESON) setup --reconfigure $(SRC_PATH)"; \
 121           $(MESON) setup --reconfigure $(SRC_PATH); \
 122         fi && echo "$(MESON)" > $@
 123
 124 Makefile.mtest: build.ninja scripts/mtest2make.py
 125         $(MESON) introspect --targets --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
 126 -include Makefile.mtest
 127
 128 .PHONY: update-buildoptions
 129 all update-buildoptions: $(SRC_PATH)/scripts/meson-buildoptions.sh
 130 $(SRC_PATH)/scripts/meson-buildoptions.sh: $(SRC_PATH)/meson_options.txt
 131         $(MESON) introspect --buildoptions $(SRC_PATH)/meson.build | $(PYTHON) \
 132           scripts/meson-buildoptions.py > $@.tmp && mv $@.tmp $@
 133 endif
 134
 135 # 4. Rules to bridge to other makefiles
 136
 137 ifneq ($(NINJA),)
 138 # Filter out long options to avoid flags like --no-print-directory which
 139 # may result in false positive match for MAKE.n
 140 MAKE.n = $(findstring n,$(firstword $(filter-out --%,$(MAKEFLAGS))))
 141 MAKE.k = $(findstring k,$(firstword $(filter-out --%,$(MAKEFLAGS))))
 142 MAKE.q = $(findstring q,$(firstword $(filter-out --%,$(MAKEFLAGS))))
 143 MAKE.nq = $(if $(word 2, $(MAKE.n) $(MAKE.q)),nq)
 144 NINJAFLAGS = $(if $V,-v) $(if $(MAKE.n), -n) $(if $(MAKE.k), -k0) \
 145         $(filter-out -j, $(lastword -j1 $(filter -l% -j%, $(MAKEFLAGS)))) \
 146         -d keepdepfile
 147 ninja-cmd-goals = $(or $(MAKECMDGOALS), all)
 148 ninja-cmd-goals += $(foreach g, $(MAKECMDGOALS), $(.ninja-goals.$g))
 149
 150 makefile-targets := build.ninja ctags TAGS cscope dist clean
 151 # "ninja -t targets" also lists all prerequisites.  If build system
 152 # files are marked as PHONY, however, Make will always try to execute
 153 # "ninja build.ninja".
 154 ninja-targets := $(filter-out $(build-files) $(makefile-targets), $(ninja-targets))
 155 .PHONY: $(ninja-targets) run-ninja
 156 $(ninja-targets): run-ninja
 157
 158 # Use "| cat" to give Ninja a more "make-y" output.  Use "+" to bypass the
 159 # --output-sync line.
 160 run-ninja: config-host.mak
 161 ifneq ($(filter $(ninja-targets), $(ninja-cmd-goals)),)
 162         +$(if $(MAKE.nq),@:,$(quiet-@)$(NINJA) $(NINJAFLAGS) \
 163            $(sort $(filter $(ninja-targets), $(ninja-cmd-goals))) | cat)
 164 endif
 165 endif
 166
 167 else # config-host.mak does not exist
 168 ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
 169 $(error Please call configure before running make)
 170 endif
 171 endif # config-host.mak does not exist
 172
 173 SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory --quiet)
 174
 175 include $(SRC_PATH)/tests/Makefile.include
 176
 177 all: recurse-all
 178
 179 SUBDIR_RULES=$(foreach t, all clean distclean, $(addsuffix /$(t), $(SUBDIRS)))
 180 .PHONY: $(SUBDIR_RULES)
 181 $(SUBDIR_RULES):
 182         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" $(notdir $@),)
 183
 184 ifneq ($(filter contrib/plugins, $(SUBDIRS)),)
 185 .PHONY: plugins
 186 plugins: contrib/plugins/all
 187 endif
 188
 189 .PHONY: recurse-all recurse-clean
 190 recurse-all: $(addsuffix /all, $(SUBDIRS))
 191 recurse-clean: $(addsuffix /clean, $(SUBDIRS))
 192 recurse-distclean: $(addsuffix /distclean, $(SUBDIRS))
 193
 194 ######################################################################
 195
 196 clean: recurse-clean
 197         -$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean || :
 198         -$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) clean-ctlist || :
 199         find . \( -name '*.so' -o -name '*.dll' -o \
 200                   -name '*.[oda]' -o -name '*.gcno' \) -type f \
 201                 ! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-aarch64.a \
 202                 ! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-arm.a \
 203                 -exec rm {} +
 204         rm -f TAGS cscope.* *~ */*~
 205         @$(MAKE) -Ctests/qemu-iotests clean
 206
 207 VERSION = $(shell cat $(SRC_PATH)/VERSION)
 208
 209 dist: qemu-$(VERSION).tar.bz2
 210
 211 qemu-%.tar.bz2:
 212         $(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
 213
 214 distclean: clean recurse-distclean
 215         -$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean -g || :
 216         rm -f config-host.mak Makefile.prereqs
 217         rm -f tests/tcg/*/config-target.mak tests/tcg/config-host.mak
 218         rm -f config.status
 219         rm -f roms/seabios/config.mak
 220         rm -f qemu-plugins-ld.symbols qemu-plugins-ld64.symbols
 221         rm -f *-config-target.h *-config-devices.mak *-config-devices.h
 222         rm -rf meson-private meson-logs meson-info compile_commands.json
 223         rm -f Makefile.ninja Makefile.mtest build.ninja.stamp meson.stamp
 224         rm -f config.log
 225         rm -f linux-headers/asm
 226         rm -Rf .sdk qemu-bundle
 227
 228 find-src-path = find "$(SRC_PATH)" -path "$(SRC_PATH)/meson" -prune -o \
 229         -type l -prune -o \( -name "*.[chsS]" -o -name "*.[ch].inc" \)
 230
 231 .PHONY: ctags
 232 ctags:
 233         $(call quiet-command,                   \
 234                 rm -f "$(SRC_PATH)/"tags,       \
 235                 "CTAGS", "Remove old tags")
 236         $(call quiet-command, \
 237                 $(find-src-path) -exec ctags            \
 238                 -f "$(SRC_PATH)/"tags --append {} +,    \
 239                 "CTAGS", "Re-index $(SRC_PATH)")
 240
 241 .PHONY: gtags
 242 gtags:
 243         $(call quiet-command,                   \
 244                 rm -f "$(SRC_PATH)/"GTAGS;      \
 245                 rm -f "$(SRC_PATH)/"GRTAGS;     \
 246                 rm -f "$(SRC_PATH)/"GPATH,      \
 247                 "GTAGS", "Remove old $@ files")
 248         $(call quiet-command,                           \
 249                 (cd $(SRC_PATH) &&                      \
 250                  $(find-src-path) -print | gtags -f -), \
 251                 "GTAGS", "Re-index $(SRC_PATH)")
 252
 253 .PHONY: TAGS
 254 TAGS:
 255         $(call quiet-command,                   \
 256                 rm -f "$(SRC_PATH)/"TAGS,       \
 257                 "TAGS", "Remove old $@")
 258         $(call quiet-command,                           \
 259                 $(find-src-path) -exec etags            \
 260                 -f "$(SRC_PATH)/"TAGS --append {} +,    \
 261                 "TAGS", "Re-index $(SRC_PATH)")
 262
 263 .PHONY: cscope
 264 cscope:
 265         $(call quiet-command,                   \
 266                 rm -f "$(SRC_PATH)/"cscope.* ,  \
 267                 "cscope", "Remove old $@ files")
 268         $(call quiet-command,                                   \
 269                 ($(find-src-path) -print | sed -e 's,^\./,,'    \
 270                 > "$(SRC_PATH)/cscope.files"),                  \
 271                 "cscope", "Create file list")
 272         $(call quiet-command,                           \
 273                 cscope -b -i"$(SRC_PATH)/cscope.files"  \
 274                 -f"$(SRC_PATH)"/cscope.out,             \
 275                 "cscope", "Re-index $(SRC_PATH)")
 276
 277 # Needed by "meson install"
 278 export DESTDIR
 279
 280 include $(SRC_PATH)/tests/lcitool/Makefile.include
 281 include $(SRC_PATH)/tests/docker/Makefile.include
 282 include $(SRC_PATH)/tests/vm/Makefile.include
 283
 284 print-help-run = printf "  %-30s - %s\\n" "$1" "$2"
 285 print-help = @$(call print-help-run,$1,$2)
 286
 287 .PHONY: update-linux-vdso
 288 update-linux-vdso:
 289         @for m in $(SRC_PATH)/linux-user/*/Makefile.vdso; do \
 290           $(MAKE) $(SUBDIR_MAKEFLAGS) -C $$(dirname $$m) -f Makefile.vdso \
 291                 SRC_PATH=$(SRC_PATH) BUILD_DIR=$(BUILD_DIR); \
 292         done
 293
 294 .PHONY: help
 295 help:
 296         @echo  'Generic targets:'
 297         $(call print-help,all,Build all)
 298         $(call print-help,dir/file.o,Build specified target only)
 299         $(call print-help,install,Install QEMU, documentation and tools)
 300         $(call print-help,ctags/gtags/TAGS,Generate tags file for editors)
 301         $(call print-help,cscope,Generate cscope index)
 302         $(call print-help,sparse,Run sparse on the QEMU source)
 303         @echo  ''
 304 ifneq ($(filter contrib/plugins, $(SUBDIRS)),)
 305         @echo  'Plugin targets:'
 306         $(call print-help,plugins,Build the example TCG plugins)
 307         @echo  ''
 308 endif
 309         @echo  'Cleaning targets:'
 310         $(call print-help,clean,Remove most generated files but keep the config)
 311         $(call print-help,distclean,Remove all generated files)
 312         $(call print-help,dist,Build a distributable tarball)
 313         @echo  ''
 314         @echo  'Linux-user targets:'
 315         $(call print-help,update-linux-vdso,Build linux-user vdso images)
 316         @echo  ''
 317         @echo  'Test targets:'
 318         $(call print-help,check,Run all tests (check-help for details))
 319         $(call print-help,bench,Run all benchmarks)
 320         $(call print-help,lcitool-help,Help about targets for managing build environment manifests)
 321         $(call print-help,docker-help,Help about targets running tests inside containers)
 322         $(call print-help,vm-help,Help about targets running tests inside VM)
 323         @echo  ''
 324         @echo  'Documentation targets:'
 325         $(call print-help,html man,Build documentation in specified format)
 326         @echo  ''
 327 ifneq ($(filter msi, $(ninja-targets)),)
 328         @echo  'Windows targets:'
 329         $(call print-help,installer,Build NSIS-based installer for QEMU)
 330         $(call print-help,msi,Build MSI-based installer for qemu-ga)
 331         @echo  ''
 332 endif
 333         $(call print-help,$(MAKE) [targets],(quiet build, default))
 334         $(call print-help,$(MAKE) V=1 [targets],(verbose build))
 335
 336 # will delete the target of a rule if commands exit with a nonzero exit status
 337 .DELETE_ON_ERROR:
 338
 339 print-%:
 340         @echo '$*=$($*)'