LXR qemu/Makefile

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