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1# SPDX-License-Identifier: GPL-2.0
2# ===========================================================================
3# Kernel configuration targets
4# These targets are used from top-level makefile
5
6PHONY += xconfig gconfig menuconfig config syncconfig update-po-config \
7 localmodconfig localyesconfig
8
9ifdef KBUILD_KCONFIG
10Kconfig := $(KBUILD_KCONFIG)
11else
12Kconfig := Kconfig
13endif
14
15ifeq ($(quiet),silent_)
16silent := -s
17endif
18
19# We need this, in case the user has it in its environment
20unexport CONFIG_
21
22xconfig: $(obj)/qconf
23 $< $(silent) $(Kconfig)
24
25gconfig: $(obj)/gconf
26 $< $(silent) $(Kconfig)
27
28menuconfig: $(obj)/mconf
29 $< $(silent) $(Kconfig)
30
31config: $(obj)/conf
32 $< $(silent) --oldaskconfig $(Kconfig)
33
34nconfig: $(obj)/nconf
35 $< $(silent) $(Kconfig)
36
37# This has become an internal implementation detail and is now deprecated
38# for external use.
39syncconfig: $(obj)/conf
40 $(Q)mkdir -p include/config include/generated
41 $< $(silent) --$@ $(Kconfig)
42
43localyesconfig localmodconfig: $(obj)/conf
44 $(Q)mkdir -p include/config include/generated
45 $(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
46 $(Q)if [ -f .config ]; then \
47 cmp -s .tmp.config .config || \
48 (mv -f .config .config.old.1; \
49 mv -f .tmp.config .config; \
50 $< $(silent) --oldconfig $(Kconfig); \
51 mv -f .config.old.1 .config.old) \
52 else \
53 mv -f .tmp.config .config; \
54 $< $(silent) --oldconfig $(Kconfig); \
55 fi
56 $(Q)rm -f .tmp.config
57
58# Create new linux.pot file
59# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
60update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
61 $(Q)$(kecho) " GEN config.pot"
62 $(Q)xgettext --default-domain=linux \
63 --add-comments --keyword=_ --keyword=N_ \
64 --from-code=UTF-8 \
65 --files-from=$(srctree)/scripts/kconfig/POTFILES.in \
66 --directory=$(srctree) --directory=$(objtree) \
67 --output $(obj)/config.pot
68 $(Q)sed -i s/CHARSET/UTF-8 $(obj)/config.pot
69 $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \
70 $(srctree)/arch/*/um/Kconfig`; \
71 do \
72 $(kecho) " GEN $$i"; \
73 $(obj)/kxgettext $$i \
74 >> $(obj)/config.pot; \
75 done )
76 $(Q)$(kecho) " GEN linux.pot"
77 $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
78 --output $(obj)/linux.pot
79 $(Q)rm -f $(obj)/config.pot
80
81# These targets map 1:1 to the commandline options of 'conf'
82simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
83 alldefconfig randconfig listnewconfig olddefconfig
84PHONY += $(simple-targets)
85
86$(simple-targets): $(obj)/conf
87 $< $(silent) --$@ $(Kconfig)
88
89PHONY += oldnoconfig silentoldconfig savedefconfig defconfig
90
91# oldnoconfig is an alias of olddefconfig, because people already are dependent
92# on its behavior (sets new symbols to their default value but not 'n') with the
93# counter-intuitive name.
94oldnoconfig: olddefconfig
95 @echo " WARNING: \"oldnoconfig\" target will be removed after Linux 4.19"
96 @echo " Please use \"olddefconfig\" instead, which is an alias."
97
98# We do not expect manual invokcation of "silentoldcofig" (or "syncconfig").
99silentoldconfig: syncconfig
100 @echo " WARNING: \"silentoldconfig\" has been renamed to \"syncconfig\""
101 @echo " and is now an internal implementation detail."
102 @echo " What you want is probably \"oldconfig\"."
103 @echo " \"silentoldconfig\" will be removed after Linux 4.19"
104
105savedefconfig: $(obj)/conf
106 $< $(silent) --$@=defconfig $(Kconfig)
107
108defconfig: $(obj)/conf
109ifeq ($(KBUILD_DEFCONFIG),)
110 $< $(silent) --defconfig $(Kconfig)
111else
112ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
113 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
114 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
115else
116 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
117 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
118endif
119endif
120
121%_defconfig: $(obj)/conf
122 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
123
124configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
125
126%.config: $(obj)/conf
127 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
128 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
129 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
130
131PHONY += kvmconfig
132kvmconfig: kvm_guest.config
133 @:
134
135PHONY += xenconfig
136xenconfig: xen.config
137 @:
138
139PHONY += tinyconfig
140tinyconfig:
141 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
142
143# CHECK: -o cache_dir=<path> working?
144PHONY += testconfig
145testconfig: $(obj)/conf
146 $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \
147 -o cache_dir=$(abspath $(obj)/tests/.cache) \
148 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)
149clean-dirs += tests/.cache
150
151# Help text used by make help
152help:
153 @echo ' config - Update current config utilising a line-oriented program'
154 @echo ' nconfig - Update current config utilising a ncurses menu based'
155 @echo ' program'
156 @echo ' menuconfig - Update current config utilising a menu based program'
157 @echo ' xconfig - Update current config utilising a Qt based front-end'
158 @echo ' gconfig - Update current config utilising a GTK+ based front-end'
159 @echo ' oldconfig - Update current config utilising a provided .config as base'
160 @echo ' localmodconfig - Update current config disabling modules not loaded'
161 @echo ' localyesconfig - Update current config converting local mods to core'
162 @echo ' defconfig - New config with default from ARCH supplied defconfig'
163 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
164 @echo ' allnoconfig - New config where all options are answered with no'
165 @echo ' allyesconfig - New config where all options are accepted with yes'
166 @echo ' allmodconfig - New config selecting modules when possible'
167 @echo ' alldefconfig - New config with all symbols set to default'
168 @echo ' randconfig - New config with random answer to all options'
169 @echo ' listnewconfig - List new options'
170 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
171 @echo ' default value without prompting'
172 @echo ' kvmconfig - Enable additional options for kvm guest kernel support'
173 @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
174 @echo ' tinyconfig - Configure the tiniest possible kernel'
175
176# lxdialog stuff
177check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
178
179# Use recursively expanded variables so we do not call gcc unless
180# we really need to do so. (Do not call gcc as part of make mrproper)
181HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
182 -DLOCALE
183
184# ===========================================================================
185# Shared Makefile for the various kconfig executables:
186# conf: Used for defconfig, oldconfig and related targets
187# nconf: Used for the nconfig target.
188# Utilizes ncurses
189# mconf: Used for the menuconfig target
190# Utilizes the lxdialog package
191# qconf: Used for the xconfig target
192# Based on Qt which needs to be installed to compile it
193# gconf: Used for the gconfig target
194# Based on GTK+ which needs to be installed to compile it
195# object files used by all kconfig flavours
196
197lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
198lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
199
200conf-objs := conf.o zconf.tab.o
201mconf-objs := mconf.o zconf.tab.o $(lxdialog)
202nconf-objs := nconf.o zconf.tab.o nconf.gui.o
203kxgettext-objs := kxgettext.o zconf.tab.o
204qconf-cxxobjs := qconf.o
205qconf-objs := zconf.tab.o
206gconf-objs := gconf.o zconf.tab.o
207
208hostprogs-y := conf nconf mconf kxgettext qconf gconf
209
210targets += zconf.lex.c
211clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
212clean-files += gconf.glade.h
213clean-files += config.pot linux.pot
214
215# Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
216PHONY += $(obj)/dochecklxdialog
217$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/dochecklxdialog
218$(obj)/dochecklxdialog:
219 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
220
221always := dochecklxdialog
222
223# Add environment specific flags
224HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
225HOST_EXTRACXXFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCXX) $(HOSTCXXFLAGS))
226
227# generated files seem to need this to find local include files
228HOSTCFLAGS_zconf.lex.o := -I$(src)
229HOSTCFLAGS_zconf.tab.o := -I$(src)
230
231HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
232HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
233
234HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
235HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
236 -Wno-missing-prototypes
237
238HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
239
240HOSTLOADLIBES_nconf = $(shell \
241 pkg-config --libs menuw panelw ncursesw 2>/dev/null \
242 || pkg-config --libs menu panel ncurses 2>/dev/null \
243 || echo "-lmenu -lpanel -lncurses" )
244$(obj)/qconf.o: $(obj)/.tmp_qtcheck
245
246ifeq ($(MAKECMDGOALS),xconfig)
247$(obj)/.tmp_qtcheck: $(src)/Makefile
248-include $(obj)/.tmp_qtcheck
249
250# Qt needs some extra effort...
251$(obj)/.tmp_qtcheck:
252 @set -e; $(kecho) " CHECK qt"; \
253 if pkg-config --exists Qt5Core; then \
254 cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \
255 libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \
256 moc=`pkg-config --variable=host_bins Qt5Core`/moc; \
257 elif pkg-config --exists QtCore; then \
258 cflags=`pkg-config --cflags QtCore QtGui`; \
259 libs=`pkg-config --libs QtCore QtGui`; \
260 moc=`pkg-config --variable=moc_location QtCore`; \
261 else \
262 echo >&2 "*"; \
263 echo >&2 "* Could not find Qt via pkg-config."; \
264 echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \
265 echo >&2 "*"; \
266 exit 1; \
267 fi; \
268 echo "KC_QT_CFLAGS=$$cflags" > $@; \
269 echo "KC_QT_LIBS=$$libs" >> $@; \
270 echo "KC_QT_MOC=$$moc" >> $@
271endif
272
273$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
274
275ifeq ($(MAKECMDGOALS),gconfig)
276-include $(obj)/.tmp_gtkcheck
277
278# GTK+ needs some extra effort, too...
279$(obj)/.tmp_gtkcheck:
280 @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
281 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
282 touch $@; \
283 else \
284 echo >&2 "*"; \
285 echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \
286 echo >&2 "*"; \
287 false; \
288 fi \
289 else \
290 echo >&2 "*"; \
291 echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \
292 echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \
293 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
294 echo >&2 "*"; \
295 false; \
296 fi
297endif
298
299$(obj)/zconf.tab.o: $(obj)/zconf.lex.c
300
301$(obj)/qconf.o: $(obj)/qconf.moc
302
303quiet_cmd_moc = MOC $@
304 cmd_moc = $(KC_QT_MOC) -i $< -o $@
305
306$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
307 $(call cmd,moc)
308
309# Extract gconf menu items for i18n support
310$(obj)/gconf.glade.h: $(obj)/gconf.glade
311 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
312 $(obj)/gconf.glade
1# SPDX-License-Identifier: GPL-2.0
2# ===========================================================================
3# Kernel configuration targets
4# These targets are used from top-level makefile
5
6PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig \
7 build_menuconfig build_nconfig build_gconfig build_xconfig
8
9ifdef KBUILD_KCONFIG
10Kconfig := $(KBUILD_KCONFIG)
11else
12Kconfig := Kconfig
13endif
14
15ifndef KBUILD_DEFCONFIG
16KBUILD_DEFCONFIG := defconfig
17endif
18
19ifeq ($(quiet),silent_)
20silent := -s
21endif
22
23# We need this, in case the user has it in its environment
24unexport CONFIG_
25
26xconfig: $(obj)/qconf
27 $< $(silent) $(Kconfig)
28
29gconfig: $(obj)/gconf
30 $< $(silent) $(Kconfig)
31
32menuconfig: $(obj)/mconf
33 $< $(silent) $(Kconfig)
34
35config: $(obj)/conf
36 $< $(silent) --oldaskconfig $(Kconfig)
37
38nconfig: $(obj)/nconf
39 $< $(silent) $(Kconfig)
40
41build_menuconfig: $(obj)/mconf
42
43build_nconfig: $(obj)/nconf
44
45build_gconfig: $(obj)/gconf
46
47build_xconfig: $(obj)/qconf
48
49localyesconfig localmodconfig: $(obj)/conf
50 $(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
51 $(Q)if [ -f .config ]; then \
52 cmp -s .tmp.config .config || \
53 (mv -f .config .config.old.1; \
54 mv -f .tmp.config .config; \
55 $< $(silent) --oldconfig $(Kconfig); \
56 mv -f .config.old.1 .config.old) \
57 else \
58 mv -f .tmp.config .config; \
59 $< $(silent) --oldconfig $(Kconfig); \
60 fi
61 $(Q)rm -f .tmp.config
62
63# These targets map 1:1 to the commandline options of 'conf'
64#
65# Note:
66# syncconfig has become an internal implementation detail and is now
67# deprecated for external use
68simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
69 alldefconfig randconfig listnewconfig olddefconfig syncconfig
70PHONY += $(simple-targets)
71
72$(simple-targets): $(obj)/conf
73 $< $(silent) --$@ $(Kconfig)
74
75PHONY += savedefconfig defconfig
76
77savedefconfig: $(obj)/conf
78 $< $(silent) --$@=defconfig $(Kconfig)
79
80defconfig: $(obj)/conf
81ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
82 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
83 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
84else
85 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
86 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
87endif
88
89%_defconfig: $(obj)/conf
90 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
91
92configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
93
94%.config: $(obj)/conf
95 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
96 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
97 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
98
99PHONY += kvmconfig
100kvmconfig: kvm_guest.config
101 @:
102
103PHONY += xenconfig
104xenconfig: xen.config
105 @:
106
107PHONY += tinyconfig
108tinyconfig:
109 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
110
111# CHECK: -o cache_dir=<path> working?
112PHONY += testconfig
113testconfig: $(obj)/conf
114 $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \
115 -o cache_dir=$(abspath $(obj)/tests/.cache) \
116 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)
117clean-files += tests/.cache
118
119# Help text used by make help
120help:
121 @echo ' config - Update current config utilising a line-oriented program'
122 @echo ' nconfig - Update current config utilising a ncurses menu based program'
123 @echo ' menuconfig - Update current config utilising a menu based program'
124 @echo ' xconfig - Update current config utilising a Qt based front-end'
125 @echo ' gconfig - Update current config utilising a GTK+ based front-end'
126 @echo ' oldconfig - Update current config utilising a provided .config as base'
127 @echo ' localmodconfig - Update current config disabling modules not loaded'
128 @echo ' localyesconfig - Update current config converting local mods to core'
129 @echo ' defconfig - New config with default from ARCH supplied defconfig'
130 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
131 @echo ' allnoconfig - New config where all options are answered with no'
132 @echo ' allyesconfig - New config where all options are accepted with yes'
133 @echo ' allmodconfig - New config selecting modules when possible'
134 @echo ' alldefconfig - New config with all symbols set to default'
135 @echo ' randconfig - New config with random answer to all options'
136 @echo ' listnewconfig - List new options'
137 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
138 @echo ' default value without prompting'
139 @echo ' kvmconfig - Enable additional options for kvm guest kernel support'
140 @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
141 @echo ' tinyconfig - Configure the tiniest possible kernel'
142 @echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)'
143
144# ===========================================================================
145# object files used by all kconfig flavours
146common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
147 symbol.o
148
149$(obj)/lexer.lex.o: $(obj)/parser.tab.h
150HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
151HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
152
153# conf: Used for defconfig, oldconfig and related targets
154hostprogs-y += conf
155conf-objs := conf.o $(common-objs)
156
157# nconf: Used for the nconfig target based on ncurses
158hostprogs-y += nconf
159nconf-objs := nconf.o nconf.gui.o $(common-objs)
160
161HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
162HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
163HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
164
165$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
166
167# mconf: Used for the menuconfig target based on lxdialog
168hostprogs-y += mconf
169lxdialog := $(addprefix lxdialog/, \
170 checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
171mconf-objs := mconf.o $(lxdialog) $(common-objs)
172
173HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
174$(foreach f, mconf.o $(lxdialog), \
175 $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
176
177$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
178
179# qconf: Used for the xconfig target based on Qt
180hostprogs-y += qconf
181qconf-cxxobjs := qconf.o
182qconf-objs := images.o $(common-objs)
183
184HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
185HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
186
187$(obj)/qconf.o: $(obj)/qconf-cfg $(obj)/qconf.moc
188
189quiet_cmd_moc = MOC $@
190 cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) -i $< -o $@
191
192$(obj)/%.moc: $(src)/%.h $(obj)/qconf-cfg
193 $(call cmd,moc)
194
195# gconf: Used for the gconfig target based on GTK+
196hostprogs-y += gconf
197gconf-objs := gconf.o images.o $(common-objs)
198
199HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs)
200HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags)
201
202$(obj)/gconf.o: $(obj)/gconf-cfg
203
204# check if necessary packages are available, and configure build flags
205filechk_conf_cfg = $(CONFIG_SHELL) $<
206
207$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
208 $(call filechk,conf_cfg)
209
210clean-files += *conf-cfg