xref: /qemu/Makefile (revision b2a3cbb8)
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,$3)
28
29UNCHECKED_GOALS := %clean TAGS cscope ctags dist \
30    help check-help print-% \
31    docker docker-% vm-help vm-test vm-build-%
32
33all:
34.PHONY: all clean distclean recurse-all dist msi FORCE
35
36# Don't try to regenerate Makefile or configure
37# We don't generate any of them
38Makefile: ;
39configure: ;
40
41# All following code might depend on configuration variables
42ifneq ($(wildcard config-host.mak),)
43include config-host.mak
44
45include Makefile.prereqs
46Makefile.prereqs: config-host.mak
47
48git-submodule-update:
49.git-submodule-status: git-submodule-update config-host.mak
50Makefile: .git-submodule-status
51
52.PHONY: git-submodule-update
53git-submodule-update:
54ifneq ($(GIT_SUBMODULES_ACTION),ignore)
55	$(call quiet-command, \
56		(GIT="$(GIT)" "$(SRC_PATH)/scripts/git-submodule.sh" $(GIT_SUBMODULES_ACTION) $(GIT_SUBMODULES)), \
57		"GIT","$(GIT_SUBMODULES)")
58endif
59
60# 0. ensure the build tree is okay
61
62# Check that we're not trying to do an out-of-tree build from
63# a tree that's been used for an in-tree build.
64ifneq ($(realpath $(SRC_PATH)),$(realpath .))
65ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
66$(error This is an out of tree build but your source tree ($(SRC_PATH)) \
67seems to have been used for an in-tree build. You can fix this by running \
68"$(MAKE) distclean && rm -rf *-linux-user *-softmmu" in your source tree)
69endif
70endif
71
72# force a rerun of configure if config-host.mak is too old or corrupted
73ifeq ($(MESON),)
74.PHONY: config-host.mak
75x := $(shell rm -rf meson-private meson-info meson-logs)
76endif
77ifeq ($(NINJA),)
78.PHONY: config-host.mak
79x := $(shell rm -rf meson-private meson-info meson-logs)
80else
81export NINJA
82endif
83ifeq ($(wildcard build.ninja),)
84.PHONY: config-host.mak
85x := $(shell rm -rf meson-private meson-info meson-logs)
86endif
87ifeq ($(origin prefix),file)
88.PHONY: config-host.mak
89x := $(shell rm -rf meson-private meson-info meson-logs)
90endif
91
92# 1. ensure config-host.mak is up-to-date
93config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/scripts/meson-buildoptions.sh $(SRC_PATH)/VERSION
94	@echo config-host.mak is out-of-date, running configure
95	@if test -f meson-private/coredata.dat; then \
96	  ./config.status --skip-meson; \
97	else \
98	  ./config.status && touch build.ninja.stamp; \
99	fi
100
101# 2. meson.stamp exists if meson has run at least once (so ninja reconfigure
102# works), but otherwise never needs to be updated
103meson-private/coredata.dat: meson.stamp
104meson.stamp: config-host.mak
105	@touch meson.stamp
106
107# 3. ensure generated build files are up-to-date
108
109ifneq ($(NINJA),)
110Makefile.ninja: build.ninja
111	$(quiet-@){ \
112	  echo 'ninja-targets = \'; \
113	  $(NINJA) -t targets all | sed 's/:.*//; $$!s/$$/ \\/'; \
114	  echo 'build-files = \'; \
115	  $(NINJA) -t query build.ninja | sed -n '1,/^  input:/d; /^  outputs:/q; s/$$/ \\/p'; \
116	} > $@.tmp && mv $@.tmp $@
117-include Makefile.ninja
118
119# A separate rule is needed for Makefile dependencies to avoid -n
120build.ninja: build.ninja.stamp
121$(build-files):
122build.ninja.stamp: meson.stamp $(build-files)
123	$(NINJA) $(if $V,-v,) build.ninja && touch $@
124endif
125
126ifneq ($(MESON),)
127Makefile.mtest: build.ninja scripts/mtest2make.py
128	$(MESON) introspect --targets --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
129-include Makefile.mtest
130
131.PHONY: update-buildoptions
132all update-buildoptions: $(SRC_PATH)/scripts/meson-buildoptions.sh
133$(SRC_PATH)/scripts/meson-buildoptions.sh: $(SRC_PATH)/meson_options.txt
134	$(MESON) introspect --buildoptions $(SRC_PATH)/meson.build | $(PYTHON) \
135	  scripts/meson-buildoptions.py > $@.tmp && mv $@.tmp $@
136endif
137
138# 4. Rules to bridge to other makefiles
139
140ifneq ($(NINJA),)
141# Filter out long options to avoid flags like --no-print-directory which
142# may result in false positive match for MAKE.n
143MAKE.n = $(findstring n,$(firstword $(filter-out --%,$(MAKEFLAGS))))
144MAKE.k = $(findstring k,$(firstword $(filter-out --%,$(MAKEFLAGS))))
145MAKE.q = $(findstring q,$(firstword $(filter-out --%,$(MAKEFLAGS))))
146MAKE.nq = $(if $(word 2, $(MAKE.n) $(MAKE.q)),nq)
147NINJAFLAGS = $(if $V,-v) $(if $(MAKE.n), -n) $(if $(MAKE.k), -k0) \
148        $(filter-out -j, $(lastword -j1 $(filter -l% -j%, $(MAKEFLAGS)))) \
149        -d keepdepfile
150ninja-cmd-goals = $(or $(MAKECMDGOALS), all)
151ninja-cmd-goals += $(foreach g, $(MAKECMDGOALS), $(.ninja-goals.$g))
152
153makefile-targets := build.ninja ctags TAGS cscope dist clean uninstall
154# "ninja -t targets" also lists all prerequisites.  If build system
155# files are marked as PHONY, however, Make will always try to execute
156# "ninja build.ninja".
157ninja-targets := $(filter-out $(build-files) $(makefile-targets), $(ninja-targets))
158.PHONY: $(ninja-targets) run-ninja
159$(ninja-targets): run-ninja
160
161# Use "| cat" to give Ninja a more "make-y" output.  Use "+" to bypass the
162# --output-sync line.
163run-ninja: config-host.mak
164ifneq ($(filter $(ninja-targets), $(ninja-cmd-goals)),)
165	+$(if $(MAKE.nq),@:,$(quiet-@)$(NINJA) $(NINJAFLAGS) \
166	   $(sort $(filter $(ninja-targets), $(ninja-cmd-goals))) | cat)
167endif
168endif
169
170ifeq ($(CONFIG_PLUGIN),y)
171.PHONY: plugins
172plugins:
173	$(call quiet-command,\
174		$(MAKE) $(SUBDIR_MAKEFLAGS) -C contrib/plugins V="$(V)", \
175		"BUILD", "example plugins")
176endif # $(CONFIG_PLUGIN)
177
178else # config-host.mak does not exist
179config-host.mak:
180ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
181	@echo "Please call configure before running make!"
182	@exit 1
183endif
184endif # config-host.mak does not exist
185
186SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory --quiet)
187
188include $(SRC_PATH)/tests/Makefile.include
189
190all: recurse-all
191
192ROMS_RULES=$(foreach t, all clean distclean, $(addsuffix /$(t), $(ROMS)))
193.PHONY: $(ROMS_RULES)
194$(ROMS_RULES):
195	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" $(notdir $@),)
196
197.PHONY: recurse-all recurse-clean
198recurse-all: $(addsuffix /all, $(ROMS))
199recurse-clean: $(addsuffix /clean, $(ROMS))
200recurse-distclean: $(addsuffix /distclean, $(ROMS))
201
202######################################################################
203
204clean: recurse-clean
205	-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean || :
206	-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) clean-ctlist || :
207	find . \( -name '*.so' -o -name '*.dll' -o \
208		  -name '*.[oda]' -o -name '*.gcno' \) -type f \
209		! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-aarch64.a \
210		! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-arm.a \
211		-exec rm {} +
212	rm -f TAGS cscope.* *~ */*~
213
214VERSION = $(shell cat $(SRC_PATH)/VERSION)
215
216dist: qemu-$(VERSION).tar.bz2
217
218qemu-%.tar.bz2:
219	$(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
220
221distclean: clean recurse-distclean
222	-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean -g || :
223	rm -f config-host.mak Makefile.prereqs qemu-bundle
224	rm -f tests/tcg/*/config-target.mak tests/tcg/config-host.mak
225	rm -f config.status
226	rm -f roms/seabios/config.mak
227	rm -f qemu-plugins-ld.symbols qemu-plugins-ld64.symbols
228	rm -f *-config-target.h *-config-devices.mak *-config-devices.h
229	rm -rf meson-private meson-logs meson-info compile_commands.json
230	rm -f Makefile.ninja Makefile.mtest build.ninja.stamp meson.stamp
231	rm -f config.log
232	rm -f linux-headers/asm
233	rm -Rf .sdk
234
235find-src-path = find "$(SRC_PATH)" -path "$(SRC_PATH)/meson" -prune -o \
236	-type l -prune -o \( -name "*.[chsS]" -o -name "*.[ch].inc" \)
237
238.PHONY: ctags
239ctags:
240	$(call quiet-command, 			\
241		rm -f "$(SRC_PATH)/"tags, 	\
242		"CTAGS", "Remove old tags")
243	$(call quiet-command, \
244		$(find-src-path) -exec ctags 		\
245		-f "$(SRC_PATH)/"tags --append {} +,	\
246		"CTAGS", "Re-index $(SRC_PATH)")
247
248.PHONY: gtags
249gtags:
250	$(call quiet-command, 			\
251		rm -f "$(SRC_PATH)/"GTAGS; 	\
252		rm -f "$(SRC_PATH)/"GRTAGS; 	\
253		rm -f "$(SRC_PATH)/"GPATH, 	\
254		"GTAGS", "Remove old $@ files")
255	$(call quiet-command, 				\
256	        (cd $(SRC_PATH) && 			\
257		 $(find-src-path) -print | gtags -f -),	\
258		"GTAGS", "Re-index $(SRC_PATH)")
259
260.PHONY: TAGS
261TAGS:
262	$(call quiet-command, 			\
263		rm -f "$(SRC_PATH)/"TAGS,	\
264		"TAGS", "Remove old $@")
265	$(call quiet-command, 				\
266		$(find-src-path) -exec etags 		\
267		-f "$(SRC_PATH)/"TAGS --append {} +, 	\
268		"TAGS", "Re-index $(SRC_PATH)")
269
270.PHONY: cscope
271cscope:
272	$(call quiet-command,			\
273		rm -f "$(SRC_PATH)/"cscope.* ,	\
274		"cscope", "Remove old $@ files")
275	$(call quiet-command, 					\
276		($(find-src-path) -print | sed -e 's,^\./,,'    \
277		> "$(SRC_PATH)/cscope.files"), 			\
278		"cscope", "Create file list")
279	$(call quiet-command, 				\
280		cscope -b -i"$(SRC_PATH)/cscope.files" 	\
281		-f"$(SRC_PATH)"/cscope.out, 		\
282		"cscope", "Re-index $(SRC_PATH)")
283
284# Needed by "meson install"
285export DESTDIR
286
287include $(SRC_PATH)/tests/lcitool/Makefile.include
288include $(SRC_PATH)/tests/docker/Makefile.include
289include $(SRC_PATH)/tests/vm/Makefile.include
290
291print-help-run = printf "  %-30s - %s\\n" "$1" "$2"
292print-help = @$(call print-help-run,$1,$2)
293
294.PHONY: help
295help:
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	$(call print-help,sparse,Run sparse on the QEMU source)
303	@echo  ''
304ifeq ($(CONFIG_PLUGIN),y)
305	@echo  'Plugin targets:'
306	$(call print-help,plugins,Build the example TCG plugins)
307	@echo  ''
308endif
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  '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  ''
324ifdef CONFIG_WIN32
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