xref: /openbmc/qemu/Makefile (revision cbc20bfb) 
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
50
51git_module_status := $(shell \
52  cd '$(SRC_PATH)' && \
53  GIT="$(GIT)" ./scripts/git-submodule.sh status $(GIT_SUBMODULES); \
54  echo $$?; \
55)
56
57ifeq (1,$(git_module_status))
58ifeq (no,$(GIT_UPDATE))
59git-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62            echo "GIT submodule checkout is out of date.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)
67else
68git-submodule-update:
69	$(call quiet-command, \
70          (cd $(SRC_PATH) && GIT="$(GIT)" ./scripts/git-submodule.sh update $(GIT_SUBMODULES)), \
71          "GIT","$(GIT_SUBMODULES)")
72endif
73endif
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.
79ifneq ($(realpath $(SRC_PATH)),$(realpath .))
80ifneq ($(wildcard $(SRC_PATH)/config-host.mak),)
81$(error This is an out of tree build but your source tree ($(SRC_PATH)) \
82seems 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)
84endif
85endif
86
87# force a rerun of configure if config-host.mak is too old or corrupted
88ifeq ($(MESON),)
89.PHONY: config-host.mak
90x := $(shell rm -rf meson-private meson-info meson-logs)
91endif
92ifeq ($(NINJA),)
93.PHONY: config-host.mak
94x := $(shell rm -rf meson-private meson-info meson-logs)
95endif
96ifeq ($(wildcard build.ninja),)
97.PHONY: config-host.mak
98x := $(shell rm -rf meson-private meson-info meson-logs)
99endif
100
101# 1. ensure config-host.mak is up-to-date
102config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/pc-bios $(SRC_PATH)/VERSION
103	@echo $@ is out-of-date, running configure
104	@if test -f meson-private/coredata.dat; then \
105	  ./config.status --skip-meson; \
106	else \
107	  ./config.status; \
108	fi
109
110# 2. ensure generated build files are up-to-date
111
112ifneq ($(NINJA),)
113# A separate rule is needed for Makefile dependencies to avoid -n
114export NINJA
115Makefile.ninja: build.ninja
116	$(quiet-@){ echo 'ninja-targets = \'; $(NINJA) -t targets all | sed 's/:.*//; $$!s/$$/ \\/'; } > $@
117-include Makefile.ninja
118endif
119
120ifneq ($(MESON),)
121# The dependency on config-host.mak ensures that meson has run
122Makefile.mtest: build.ninja scripts/mtest2make.py config-host.mak
123	$(MESON) introspect --targets --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
124-include Makefile.mtest
125endif
126
127# 3. Rules to bridge to other makefiles
128
129ifneq ($(NINJA),)
130NINJAFLAGS = $(if $V,-v,) \
131        $(filter-out -j, $(lastword -j1 $(filter -l% -j%, $(MAKEFLAGS)))) \
132        $(subst -k, -k0, $(filter -n -k,$(MAKEFLAGS)))
133
134ninja-cmd-goals = $(or $(MAKECMDGOALS), all)
135ninja-cmd-goals += $(foreach t, $(.tests), $(.test.deps.$t))
136
137makefile-targets := build.ninja ctags TAGS cscope dist clean uninstall
138ninja-targets := $(filter-out $(makefile-targets), $(ninja-targets))
139.PHONY: $(ninja-targets) run-ninja
140$(ninja-targets): run-ninja
141
142# Use "| cat" to give Ninja a more "make-y" output.  Use "+" to bypass the
143# --output-sync line.
144run-ninja: config-host.mak
145ifneq ($(filter $(ninja-targets), $(ninja-cmd-goals)),)
146	+@$(NINJA) $(NINJAFLAGS) $(sort $(filter $(ninja-targets), $(ninja-cmd-goals))) | cat
147endif
148endif
149
150# Force configure to re-run if the API symbols are updated
151ifeq ($(CONFIG_PLUGIN),y)
152config-host.mak: $(SRC_PATH)/plugins/qemu-plugins.symbols
153
154.PHONY: plugins
155plugins:
156	$(call quiet-command,\
157		$(MAKE) $(SUBDIR_MAKEFLAGS) -C contrib/plugins V="$(V)", \
158		"BUILD", "example plugins")
159endif # $(CONFIG_PLUGIN)
160
161else # config-host.mak does not exist
162config-host.mak:
163ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
164	@echo "Please call configure before running make!"
165	@exit 1
166endif
167endif # config-host.mak does not exist
168
169SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory --quiet)
170
171include $(SRC_PATH)/tests/Makefile.include
172
173all: recurse-all
174
175ROM_DIRS = $(addprefix pc-bios/, $(ROMS))
176ROM_DIRS_RULES=$(foreach t, all clean, $(addsuffix /$(t), $(ROM_DIRS)))
177# Only keep -O and -g cflags
178.PHONY: $(ROM_DIRS_RULES)
179$(ROM_DIRS_RULES):
180	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $(dir $@) V="$(V)" TARGET_DIR="$(dir $@)" $(notdir $@),)
181
182.PHONY: recurse-all recurse-clean
183recurse-all: $(addsuffix /all, $(ROM_DIRS))
184recurse-clean: $(addsuffix /clean, $(ROM_DIRS))
185
186######################################################################
187
188clean: recurse-clean
189	-@test -f build.ninja && $(quiet-@)$(NINJA) $(NINJAFLAGS) -t clean || :
190	-@test -f build.ninja && $(NINJA) $(NINJAFLAGS) clean-ctlist || :
191# avoid old build problems by removing potentially incorrect old files
192	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
193	find . \( -name '*.so' -o -name '*.dll' -o -name '*.[oda]' \) -type f \
194		! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-aarch64.a \
195		! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-arm.a \
196		-exec rm {} +
197	rm -f TAGS cscope.* *.pod *~ */*~
198	rm -f fsdev/*.pod scsi/*.pod
199
200VERSION = $(shell cat $(SRC_PATH)/VERSION)
201
202dist: qemu-$(VERSION).tar.bz2
203
204qemu-%.tar.bz2:
205	$(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
206
207distclean: clean
208	-@test -f build.ninja && $(quiet-@)$(NINJA) $(NINJAFLAGS) -t clean -g || :
209	rm -f config-host.mak config-host.h*
210	rm -f tests/tcg/config-*.mak
211	rm -f config-all-disas.mak config.status
212	rm -f tests/qemu-iotests/common.env
213	rm -f roms/seabios/config.mak roms/vgabios/config.mak
214	rm -f qemu-plugins-ld.symbols qemu-plugins-ld64.symbols
215	rm -f *-config-target.h *-config-devices.mak *-config-devices.h
216	rm -rf meson-private meson-logs meson-info compile_commands.json
217	rm -f Makefile.ninja Makefile.mtest
218	rm -f config.log
219	rm -f linux-headers/asm
220	rm -Rf .sdk
221
222find-src-path = find "$(SRC_PATH)/" -path "$(SRC_PATH)/meson" -prune -o -name "*.[chsS]"
223
224.PHONY: ctags
225ctags:
226	rm -f "$(SRC_PATH)/"tags
227	$(find-src-path) -exec ctags -f "$(SRC_PATH)/"tags --append {} +
228
229.PHONY: TAGS
230TAGS:
231	rm -f "$(SRC_PATH)/"TAGS
232	$(find-src-path) -exec etags -f "$(SRC_PATH)/"TAGS --append {} +
233
234.PHONY: cscope
235cscope:
236	rm -f "$(SRC_PATH)"/cscope.*
237	$(find-src-path) -print | sed -e 's,^\./,,' > "$(SRC_PATH)/cscope.files"
238	cscope -b -i"$(SRC_PATH)/cscope.files" -f"$(SRC_PATH)"/cscope.out
239
240# Needed by "meson install"
241export DESTDIR
242
243include $(SRC_PATH)/tests/docker/Makefile.include
244include $(SRC_PATH)/tests/vm/Makefile.include
245
246print-help-run = printf "  %-30s - %s\\n" "$1" "$2"
247print-help = $(quiet-@)$(call print-help-run,$1,$2)
248
249.PHONY: help
250help:
251	@echo  'Generic targets:'
252	$(call print-help,all,Build all)
253	$(call print-help,dir/file.o,Build specified target only)
254	$(call print-help,install,Install QEMU, documentation and tools)
255	$(call print-help,ctags/TAGS,Generate tags file for editors)
256	$(call print-help,cscope,Generate cscope index)
257	$(call print-help,sparse,Run sparse on the QEMU source)
258	@echo  ''
259ifeq ($(CONFIG_PLUGIN),y)
260	@echo  'Plugin targets:'
261	$(call print-help,plugins,Build the example TCG plugins)
262	@echo  ''
263endif
264	@echo  'Cleaning targets:'
265	$(call print-help,clean,Remove most generated files but keep the config)
266	$(call print-help,distclean,Remove all generated files)
267	$(call print-help,dist,Build a distributable tarball)
268	@echo  ''
269	@echo  'Test targets:'
270	$(call print-help,check,Run all tests (check-help for details))
271	$(call print-help,bench,Run all benchmarks)
272	$(call print-help,docker,Help about targets running tests inside containers)
273	$(call print-help,vm-help,Help about targets running tests inside VM)
274	@echo  ''
275	@echo  'Documentation targets:'
276	$(call print-help,html man,Build documentation in specified format)
277	@echo  ''
278ifdef CONFIG_WIN32
279	@echo  'Windows targets:'
280	$(call print-help,installer,Build NSIS-based installer for QEMU)
281ifdef CONFIG_QGA_MSI
282	$(call print-help,msi,Build MSI-based installer for qemu-ga)
283endif
284	@echo  ''
285endif
286	$(call print-help,$(MAKE) [targets],(quiet build, default))
287	$(call print-help,$(MAKE) V=1 [targets],(verbose build))
288
289# will delete the target of a rule if commands exit with a nonzero exit status
290.DELETE_ON_ERROR:
291
292print-%:
293	@echo '$*=$($*)'
294