xref: /openbmc/qemu/Makefile (revision feece4d0) 
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 = /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.
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
45git-submodule-update:
46.git-submodule-status: git-submodule-update config-host.mak
47Makefile: .git-submodule-status
48
49.PHONY: git-submodule-update
50git-submodule-update:
51	$(call quiet-command, \
52		(GIT="$(GIT)" "$(SRC_PATH)/scripts/git-submodule.sh" $(GIT_SUBMODULES_ACTION) $(GIT_SUBMODULES)), \
53		"GIT","$(GIT_SUBMODULES)")
54
55# 0. ensure the build tree is okay
56
57# Check that we're not trying to do an out-of-tree build from
58# a tree that's been used for an in-tree build.
59ifneq ($(realpath $(SRC_PATH)),$(realpath .))
60ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
61$(error This is an out of tree build but your source tree ($(SRC_PATH)) \
62seems to have been used for an in-tree build. You can fix this by running \
63"$(MAKE) distclean && rm -rf *-linux-user *-softmmu" in your source tree)
64endif
65endif
66
67# force a rerun of configure if config-host.mak is too old or corrupted
68ifeq ($(MESON),)
69.PHONY: config-host.mak
70x := $(shell rm -rf meson-private meson-info meson-logs)
71endif
72ifeq ($(NINJA),)
73.PHONY: config-host.mak
74x := $(shell rm -rf meson-private meson-info meson-logs)
75else
76export NINJA
77endif
78ifeq ($(wildcard build.ninja),)
79.PHONY: config-host.mak
80x := $(shell rm -rf meson-private meson-info meson-logs)
81endif
82ifeq ($(origin prefix),file)
83.PHONY: config-host.mak
84x := $(shell rm -rf meson-private meson-info meson-logs)
85endif
86
87# 1. ensure config-host.mak is up-to-date
88config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/pc-bios $(SRC_PATH)/VERSION
89	@echo config-host.mak is out-of-date, running configure
90	@if test -f meson-private/coredata.dat; then \
91	  ./config.status --skip-meson; \
92	else \
93	  ./config.status && touch build.ninja.stamp; \
94	fi
95
96# 2. meson.stamp exists if meson has run at least once (so ninja reconfigure
97# works), but otherwise never needs to be updated
98meson-private/coredata.dat: meson.stamp
99meson.stamp: config-host.mak
100	@touch meson.stamp
101
102# 3. ensure generated build files are up-to-date
103
104ifneq ($(NINJA),)
105Makefile.ninja: build.ninja
106	$(quiet-@){ \
107	  echo 'ninja-targets = \'; \
108	  $(NINJA) -t targets all | sed 's/:.*//; $$!s/$$/ \\/'; \
109	  echo 'build-files = \'; \
110	  $(NINJA) -t query build.ninja | sed -n '1,/^  input:/d; /^  outputs:/q; s/$$/ \\/p'; \
111	} > $@.tmp && mv $@.tmp $@
112-include Makefile.ninja
113
114# A separate rule is needed for Makefile dependencies to avoid -n
115build.ninja: build.ninja.stamp
116$(build-files):
117build.ninja.stamp: meson.stamp $(build-files)
118	$(NINJA) $(if $V,-v,) build.ninja && touch $@
119endif
120
121ifneq ($(MESON),)
122Makefile.mtest: build.ninja scripts/mtest2make.py
123	$(MESON) introspect --targets --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
124-include Makefile.mtest
125endif
126
127# 4. Rules to bridge to other makefiles
128
129ifneq ($(NINJA),)
130MAKE.n = $(findstring n,$(firstword $(MAKEFLAGS)))
131MAKE.k = $(findstring k,$(firstword $(MAKEFLAGS)))
132MAKE.q = $(findstring q,$(firstword $(MAKEFLAGS)))
133MAKE.nq = $(if $(word 2, $(MAKE.n) $(MAKE.q)),nq)
134NINJAFLAGS = $(if $V,-v) $(if $(MAKE.n), -n) $(if $(MAKE.k), -k0) \
135        $(filter-out -j, $(lastword -j1 $(filter -l% -j%, $(MAKEFLAGS)))) \
136
137ninja-cmd-goals = $(or $(MAKECMDGOALS), all)
138ninja-cmd-goals += $(foreach t, $(.tests), $(.test.deps.$t))
139
140makefile-targets := build.ninja ctags TAGS cscope dist clean uninstall
141# "ninja -t targets" also lists all prerequisites.  If build system
142# files are marked as PHONY, however, Make will always try to execute
143# "ninja build.ninja".
144ninja-targets := $(filter-out $(build-files) $(makefile-targets), $(ninja-targets))
145.PHONY: $(ninja-targets) run-ninja
146$(ninja-targets): run-ninja
147
148# Use "| cat" to give Ninja a more "make-y" output.  Use "+" to bypass the
149# --output-sync line.
150run-ninja: config-host.mak
151ifneq ($(filter $(ninja-targets), $(ninja-cmd-goals)),)
152	+$(quiet-@)$(if $(MAKE.nq),@:, $(NINJA) -d keepdepfile \
153	   $(NINJAFLAGS) $(sort $(filter $(ninja-targets), $(ninja-cmd-goals))) | cat)
154endif
155endif
156
157# Force configure to re-run if the API symbols are updated
158ifeq ($(CONFIG_PLUGIN),y)
159config-host.mak: $(SRC_PATH)/plugins/qemu-plugins.symbols
160
161.PHONY: plugins
162plugins:
163	$(call quiet-command,\
164		$(MAKE) $(SUBDIR_MAKEFLAGS) -C contrib/plugins V="$(V)", \
165		"BUILD", "example plugins")
166endif # $(CONFIG_PLUGIN)
167
168else # config-host.mak does not exist
169config-host.mak:
170ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
171	@echo "Please call configure before running make!"
172	@exit 1
173endif
174endif # config-host.mak does not exist
175
176SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory --quiet)
177
178include $(SRC_PATH)/tests/Makefile.include
179
180all: recurse-all
181
182ROM_DIRS = $(addprefix pc-bios/, $(ROMS))
183ROM_DIRS_RULES=$(foreach t, all clean, $(addsuffix /$(t), $(ROM_DIRS)))
184# Only keep -O and -g cflags
185.PHONY: $(ROM_DIRS_RULES)
186$(ROM_DIRS_RULES):
187	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" $(notdir $@),)
188
189.PHONY: recurse-all recurse-clean
190recurse-all: $(addsuffix /all, $(ROM_DIRS))
191recurse-clean: $(addsuffix /clean, $(ROM_DIRS))
192
193######################################################################
194
195clean: recurse-clean
196	-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean || :
197	-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) clean-ctlist || :
198# avoid old build problems by removing potentially incorrect old files
199	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
200	find . \( -name '*.so' -o -name '*.dll' -o -name '*.[oda]' \) -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.* *.pod *~ */*~
205	rm -f fsdev/*.pod scsi/*.pod
206
207VERSION = $(shell cat $(SRC_PATH)/VERSION)
208
209dist: qemu-$(VERSION).tar.bz2
210
211qemu-%.tar.bz2:
212	$(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
213
214distclean: clean
215	-$(quiet-@)test -f build.ninja && $(NINJA) $(NINJAFLAGS) -t clean -g || :
216	rm -f config-host.mak config-host.h* config-poison.h
217	rm -f tests/tcg/config-*.mak
218	rm -f config-all-disas.mak config.status
219	rm -f roms/seabios/config.mak roms/vgabios/config.mak
220	rm -f qemu-plugins-ld.symbols qemu-plugins-ld64.symbols
221	rm -f *-config-target.h *-config-devices.mak *-config-devices.h
222	rm -rf meson-private meson-logs meson-info compile_commands.json
223	rm -f Makefile.ninja Makefile.mtest build.ninja.stamp meson.stamp
224	rm -f config.log
225	rm -f linux-headers/asm
226	rm -Rf .sdk
227
228find-src-path = find "$(SRC_PATH)/" -path "$(SRC_PATH)/meson" -prune -o \( -name "*.[chsS]" -o -name "*.[ch].inc" \)
229
230.PHONY: ctags
231ctags:
232	$(call quiet-command, 			\
233		rm -f "$(SRC_PATH)/"tags, 	\
234		"CTAGS", "Remove old tags")
235	$(call quiet-command, \
236		$(find-src-path) -exec ctags 		\
237		-f "$(SRC_PATH)/"tags --append {} +,	\
238		"CTAGS", "Re-index $(SRC_PATH)")
239
240.PHONY: gtags
241gtags:
242	$(call quiet-command, 			\
243		rm -f "$(SRC_PATH)/"GTAGS; 	\
244		rm -f "$(SRC_PATH)/"GRTAGS; 	\
245		rm -f "$(SRC_PATH)/"GPATH, 	\
246		"GTAGS", "Remove old $@ files")
247	$(call quiet-command, 				\
248	        (cd $(SRC_PATH) && 			\
249		 $(find-src-path) | gtags -f -), 	\
250		"GTAGS", "Re-index $(SRC_PATH)")
251
252.PHONY: TAGS
253TAGS:
254	$(call quiet-command, 			\
255		rm -f "$(SRC_PATH)/"TAGS,	\
256		"TAGS", "Remove old $@")
257	$(call quiet-command, 				\
258		$(find-src-path) -exec etags 		\
259		-f "$(SRC_PATH)/"TAGS --append {} +, 	\
260		"TAGS", "Re-index $(SRC_PATH)")
261
262.PHONY: cscope
263cscope:
264	$(call quiet-command,			\
265		rm -f "$(SRC_PATH)/"cscope.* ,	\
266		"cscope", "Remove old $@ files")
267	$(call quiet-command, 					\
268		($(find-src-path) -print | sed -e 's,^\./,,'    \
269		> "$(SRC_PATH)/cscope.files"), 			\
270		"cscope", "Create file list")
271	$(call quiet-command, 				\
272		cscope -b -i"$(SRC_PATH)/cscope.files" 	\
273		-f"$(SRC_PATH)"/cscope.out, 		\
274		"cscope", "Re-index $(SRC_PATH)")
275
276# Needed by "meson install"
277export DESTDIR
278
279include $(SRC_PATH)/tests/docker/Makefile.include
280include $(SRC_PATH)/tests/vm/Makefile.include
281
282print-help-run = printf "  %-30s - %s\\n" "$1" "$2"
283print-help = @$(call print-help-run,$1,$2)
284
285.PHONY: help
286help:
287	@echo  'Generic targets:'
288	$(call print-help,all,Build all)
289	$(call print-help,dir/file.o,Build specified target only)
290	$(call print-help,install,Install QEMU, documentation and tools)
291	$(call print-help,ctags/gtags/TAGS,Generate tags file for editors)
292	$(call print-help,cscope,Generate cscope index)
293	$(call print-help,sparse,Run sparse on the QEMU source)
294	@echo  ''
295ifeq ($(CONFIG_PLUGIN),y)
296	@echo  'Plugin targets:'
297	$(call print-help,plugins,Build the example TCG plugins)
298	@echo  ''
299endif
300	@echo  'Cleaning targets:'
301	$(call print-help,clean,Remove most generated files but keep the config)
302	$(call print-help,distclean,Remove all generated files)
303	$(call print-help,dist,Build a distributable tarball)
304	@echo  ''
305	@echo  'Test targets:'
306	$(call print-help,check,Run all tests (check-help for details))
307	$(call print-help,bench,Run all benchmarks)
308	$(call print-help,docker-help,Help about targets running tests inside containers)
309	$(call print-help,vm-help,Help about targets running tests inside VM)
310	@echo  ''
311	@echo  'Documentation targets:'
312	$(call print-help,html man,Build documentation in specified format)
313	@echo  ''
314ifdef CONFIG_WIN32
315	@echo  'Windows targets:'
316	$(call print-help,installer,Build NSIS-based installer for QEMU)
317	$(call print-help,msi,Build MSI-based installer for qemu-ga)
318	@echo  ''
319endif
320	$(call print-help,$(MAKE) [targets],(quiet build, default))
321	$(call print-help,$(MAKE) V=1 [targets],(verbose build))
322
323# will delete the target of a rule if commands exit with a nonzero exit status
324.DELETE_ON_ERROR:
325
326print-%:
327	@echo '$*=$($*)'
328