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 = /usr/bin/env 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,$3)
  28
  29 UNCHECKED_GOALS := %clean TAGS cscope ctags dist \
  30     help check-help print-% \
  31     docker docker-% vm-help vm-test vm-build-%
  32
  33 all:
  34 .PHONY: all clean distclean recurse-all dist msi FORCE
  35
  36 # Don't try to regenerate Makefile or configure
  37 # We don't generate any of them
  38 Makefile: ;
  39 configure: ;
  40
  41 # All following code might depend on configuration variables
  42 ifneq ($(wildcard config-host.mak),)
  43 include config-host.mak
  44
  45 git-submodule-update:
  46 .git-submodule-status: git-submodule-update config-host.mak
  47 Makefile: .git-submodule-status
  48
  49 .PHONY: git-submodule-update
  50
  51 git_module_status := $(shell \
  52   cd '$(SRC_PATH)' && \
  53   GIT="$(GIT)" ./scripts/git-submodule.sh status $(GIT_SUBMODULES); \
  54   echo $$?; \
  55 )
  56
  57 ifeq (1,$(git_module_status))
  58 ifeq (no,$(GIT_UPDATE))
  59 git-submodule-update:
  60         $(call quiet-command, \
  61             echo && \
  62             echo "GIT submodule checkout is out of date. Please run" && \
  63             echo "  scripts/git-submodule.sh update $(GIT_SUBMODULES)" && \
  64             echo "from the source directory checkout $(SRC_PATH)" && \
  65             echo && \
  66             exit 1)
  67 else
  68 git-submodule-update:
  69         $(call quiet-command, \
  70           (cd $(SRC_PATH) && GIT="$(GIT)" ./scripts/git-submodule.sh update $(GIT_SUBMODULES)), \
  71           "GIT","$(GIT_SUBMODULES)")
  72 endif
  73 endif
  74
  75 # 0. ensure the build tree is okay
  76
  77 # Check that we're not trying to do an out-of-tree build from
  78 # a tree that's been used for an in-tree build.
  79 ifneq ($(realpath $(SRC_PATH)),$(realpath .))
  80 ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
  81 $(error This is an out of tree build but your source tree ($(SRC_PATH)) \
  82 seems to have been used for an in-tree build. You can fix this by running \
  83 "$(MAKE) distclean && rm -rf *-linux-user *-softmmu" in your source tree)
  84 endif
  85 endif
  86
  87 # force a rerun of configure if config-host.mak is too old or corrupted
  88 ifeq ($(MESON),)
  89 .PHONY: config-host.mak
  90 x := $(shell rm -rf meson-private meson-info meson-logs)
  91 endif
  92 ifeq ($(NINJA),)
  93 .PHONY: config-host.mak
  94 x := $(shell rm -rf meson-private meson-info meson-logs)
  95 else
  96 export NINJA
  97 endif
  98 ifeq ($(wildcard build.ninja),)
  99 .PHONY: config-host.mak
 100 x := $(shell rm -rf meson-private meson-info meson-logs)
 101 endif
 102 ifeq ($(origin prefix),file)
 103 .PHONY: config-host.mak
 104 x := $(shell rm -rf meson-private meson-info meson-logs)
 105 endif
 106
 107 # 1. ensure config-host.mak is up-to-date
 108 config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/pc-bios $(SRC_PATH)/VERSION
 109         @echo config-host.mak is out-of-date, running configure
 110         @if test -f meson-private/coredata.dat; then \
 111           ./config.status --skip-meson; \
 112         else \
 113           ./config.status && touch build.ninja.stamp; \
 114         fi
 115
 116 # 2. meson.stamp exists if meson has run at least once (so ninja reconfigure
 117 # works), but otherwise never needs to be updated
 118 meson-private/coredata.dat: meson.stamp
 119 meson.stamp: config-host.mak
 120         @touch meson.stamp
 121
 122 # 3. ensure generated build files are up-to-date
 123
 124 ifneq ($(NINJA),)
 125 Makefile.ninja: build.ninja
 126         $(quiet-@){ \
 127           echo 'ninja-targets = \'; \
 128           $(NINJA) -t targets all | sed 's/:.*//; $$!s/$$/ \\/'; \
 129           echo 'build-files = \'; \
 130           $(NINJA) -t query build.ninja | sed -n '1,/^  input:/d; /^  outputs:/q; s/$$/ \\/p'; \
 131         } > $@.tmp && mv $@.tmp $@
 132 -include Makefile.ninja
 133
 134 # A separate rule is needed for Makefile dependencies to avoid -n
 135 build.ninja: build.ninja.stamp
 136 build.ninja.stamp: meson.stamp $(build-files)
 137         $(NINJA) $(if $V,-v,) build.ninja && touch $@
 138 endif
 139
 140 ifneq ($(MESON),)
 141 Makefile.mtest: build.ninja scripts/mtest2make.py
 142         $(MESON) introspect --targets --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
 143 -include Makefile.mtest
 144 endif
 145
 146 # 4. Rules to bridge to other makefiles
 147
 148 ifneq ($(NINJA),)
 149 MAKE.n = $(findstring n,$(firstword $(MAKEFLAGS)))
 150 MAKE.k = $(findstring k,$(firstword $(MAKEFLAGS)))
 151 MAKE.q = $(findstring q,$(firstword $(MAKEFLAGS)))
 152 MAKE.nq = $(if $(word 2, $(MAKE.n) $(MAKE.q)),nq)
 153 NINJAFLAGS = $(if $V,-v) $(if $(MAKE.n), -n) $(if $(MAKE.k), -k0) \
 154         $(filter-out -j, $(lastword -j1 $(filter -l% -j%, $(MAKEFLAGS)))) \
 155
 156 ninja-cmd-goals = $(or $(MAKECMDGOALS), all)
 157 ninja-cmd-goals += $(foreach t, $(.tests), $(.test.deps.$t))
 158
 159 makefile-targets := build.ninja ctags TAGS cscope dist clean uninstall
 160 # "ninja -t targets" also lists all prerequisites.  If build system
 161 # files are marked as PHONY, however, Make will always try to execute
 162 # "ninja build.ninja".
 163 ninja-targets := $(filter-out $(build-files) $(makefile-targets), $(ninja-targets))
 164 .PHONY: $(ninja-targets) run-ninja
 165 $(ninja-targets): run-ninja
 166
 167 # Use "| cat" to give Ninja a more "make-y" output.  Use "+" to bypass the
 168 # --output-sync line.
 169 run-ninja: config-host.mak
 170 ifneq ($(filter $(ninja-targets), $(ninja-cmd-goals)),)
 171         +$(quiet-@)$(if $(MAKE.nq),@:, $(NINJA) \
 172            $(NINJAFLAGS) $(sort $(filter $(ninja-targets), $(ninja-cmd-goals))) | cat)
 173 endif
 174 endif
 175
 176 # Force configure to re-run if the API symbols are updated
 177 ifeq ($(CONFIG_PLUGIN),y)
 178 config-host.mak: $(SRC_PATH)/plugins/qemu-plugins.symbols
 179
 180 .PHONY: plugins
 181 plugins:
 182         $(call quiet-command,\
 183                 $(MAKE) $(SUBDIR_MAKEFLAGS) -C contrib/plugins V="$(V)", \
 184                 "BUILD", "example plugins")
 185 endif # $(CONFIG_PLUGIN)
 186
 187 else # config-host.mak does not exist
 188 config-host.mak:
 189 ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
 190         @echo "Please call configure before running make!"
 191         @exit 1
 192 endif
 193 endif # config-host.mak does not exist
 194
 195 SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory --quiet)
 196
 197 include $(SRC_PATH)/tests/Makefile.include
 198
 199 all: recurse-all
 200
 201 ROM_DIRS = $(addprefix pc-bios/, $(ROMS))
 202 ROM_DIRS_RULES=$(foreach t, all clean, $(addsuffix /$(t), $(ROM_DIRS)))
 203 # Only keep -O and -g cflags
 204 .PHONY: $(ROM_DIRS_RULES)
 205 $(ROM_DIRS_RULES):
 206         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" $(notdir $@),)
 207
 208 .PHONY: recurse-all recurse-clean
 209 recurse-all: $(addsuffix /all, $(ROM_DIRS))
 210 recurse-clean: $(addsuffix /clean, $(ROM_DIRS))
 211
 212 ######################################################################
 213
 214 clean: recurse-clean
 215         -$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean || :
 216         -$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) clean-ctlist || :
 217 # avoid old build problems by removing potentially incorrect old files
 218         rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
 219         find . \( -name '*.so' -o -name '*.dll' -o -name '*.[oda]' \) -type f \
 220                 ! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-aarch64.a \
 221                 ! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-arm.a \
 222                 -exec rm {} +
 223         rm -f TAGS cscope.* *.pod *~ */*~
 224         rm -f fsdev/*.pod scsi/*.pod
 225
 226 VERSION = $(shell cat $(SRC_PATH)/VERSION)
 227
 228 dist: qemu-$(VERSION).tar.bz2
 229
 230 qemu-%.tar.bz2:
 231         $(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
 232
 233 distclean: clean
 234         -$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean -g || :
 235         rm -f config-host.mak config-host.h*
 236         rm -f tests/tcg/config-*.mak
 237         rm -f config-all-disas.mak config.status
 238         rm -f tests/qemu-iotests/common.env
 239         rm -f roms/seabios/config.mak roms/vgabios/config.mak
 240         rm -f qemu-plugins-ld.symbols qemu-plugins-ld64.symbols
 241         rm -f *-config-target.h *-config-devices.mak *-config-devices.h
 242         rm -rf meson-private meson-logs meson-info compile_commands.json
 243         rm -f Makefile.ninja Makefile.mtest build.ninja.stamp meson.stamp
 244         rm -f config.log
 245         rm -f linux-headers/asm
 246         rm -Rf .sdk
 247
 248 find-src-path = find "$(SRC_PATH)/" -path "$(SRC_PATH)/meson" -prune -o \( -name "*.[chsS]" -o -name "*.[ch].inc" \)
 249
 250 .PHONY: ctags
 251 ctags:
 252         rm -f "$(SRC_PATH)/"tags
 253         $(find-src-path) -exec ctags -f "$(SRC_PATH)/"tags --append {} +
 254
 255 .PHONY: TAGS
 256 TAGS:
 257         rm -f "$(SRC_PATH)/"TAGS
 258         $(find-src-path) -exec etags -f "$(SRC_PATH)/"TAGS --append {} +
 259
 260 .PHONY: cscope
 261 cscope:
 262         rm -f "$(SRC_PATH)"/cscope.*
 263         $(find-src-path) -print | sed -e 's,^\./,,' > "$(SRC_PATH)/cscope.files"
 264         cscope -b -i"$(SRC_PATH)/cscope.files" -f"$(SRC_PATH)"/cscope.out
 265
 266 # Needed by "meson install"
 267 export DESTDIR
 268
 269 include $(SRC_PATH)/tests/docker/Makefile.include
 270 include $(SRC_PATH)/tests/vm/Makefile.include
 271
 272 print-help-run = printf "  %-30s - %s\\n" "$1" "$2"
 273 print-help = @$(call print-help-run,$1,$2)
 274
 275 .PHONY: help
 276 help:
 277         @echo  'Generic targets:'
 278         $(call print-help,all,Build all)
 279         $(call print-help,dir/file.o,Build specified target only)
 280         $(call print-help,install,Install QEMU, documentation and tools)
 281         $(call print-help,ctags/TAGS,Generate tags file for editors)
 282         $(call print-help,cscope,Generate cscope index)
 283         $(call print-help,sparse,Run sparse on the QEMU source)
 284         @echo  ''
 285 ifeq ($(CONFIG_PLUGIN),y)
 286         @echo  'Plugin targets:'
 287         $(call print-help,plugins,Build the example TCG plugins)
 288         @echo  ''
 289 endif
 290         @echo  'Cleaning targets:'
 291         $(call print-help,clean,Remove most generated files but keep the config)
 292         $(call print-help,distclean,Remove all generated files)
 293         $(call print-help,dist,Build a distributable tarball)
 294         @echo  ''
 295         @echo  'Test targets:'
 296         $(call print-help,check,Run all tests (check-help for details))
 297         $(call print-help,bench,Run all benchmarks)
 298         $(call print-help,docker,Help about targets running tests inside containers)
 299         $(call print-help,vm-help,Help about targets running tests inside VM)
 300         @echo  ''
 301         @echo  'Documentation targets:'
 302         $(call print-help,html man,Build documentation in specified format)
 303         @echo  ''
 304 ifdef CONFIG_WIN32
 305         @echo  'Windows targets:'
 306         $(call print-help,installer,Build NSIS-based installer for QEMU)
 307 ifdef CONFIG_QGA_MSI
 308         $(call print-help,msi,Build MSI-based installer for qemu-ga)
 309 endif
 310         @echo  ''
 311 endif
 312         $(call print-help,$(MAKE) [targets],(quiet build, default))
 313         $(call print-help,$(MAKE) V=1 [targets],(verbose build))
 314
 315 # will delete the target of a rule if commands exit with a nonzero exit status
 316 .DELETE_ON_ERROR:
 317
 318 print-%:
 319         @echo '$*=$($*)'