Merge tag 'kbuild-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...
[muen/linux.git] / scripts / kconfig / Makefile
1 # SPDX-License-Identifier: GPL-2.0
2 # ===========================================================================
3 # Kernel configuration targets
4 # These targets are used from top-level makefile
5
6 PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \
7         localmodconfig localyesconfig
8
9 ifdef KBUILD_KCONFIG
10 Kconfig := $(KBUILD_KCONFIG)
11 else
12 Kconfig := Kconfig
13 endif
14
15 ifeq ($(quiet),silent_)
16 silent := -s
17 endif
18
19 # We need this, in case the user has it in its environment
20 unexport CONFIG_
21
22 xconfig: $(obj)/qconf
23         $< $(silent) $(Kconfig)
24
25 gconfig: $(obj)/gconf
26         $< $(silent) $(Kconfig)
27
28 menuconfig: $(obj)/mconf
29         $< $(silent) $(Kconfig)
30
31 config: $(obj)/conf
32         $< $(silent) --oldaskconfig $(Kconfig)
33
34 nconfig: $(obj)/nconf
35         $< $(silent) $(Kconfig)
36
37 # This has become an internal implementation detail and is now deprecated
38 # for external use.
39 silentoldconfig: $(obj)/conf
40         $(Q)mkdir -p include/config include/generated
41         $< $(silent) --$@ $(Kconfig)
42
43 localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
44         $(Q)mkdir -p include/config include/generated
45         $(Q)perl $< --$@ $(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                          $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
51                          mv -f .config.old.1 .config.old)               \
52         else                                                            \
53                         mv -f .tmp.config .config;                      \
54                         $(obj)/conf $(silent) --silentoldconfig $(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
60 update-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'
82 simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
83         alldefconfig randconfig listnewconfig olddefconfig
84 PHONY += $(simple-targets)
85
86 $(simple-targets): $(obj)/conf
87         $< $(silent) --$@ $(Kconfig)
88
89 PHONY += oldnoconfig 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.
94 oldnoconfig: 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 savedefconfig: $(obj)/conf
99         $< $(silent) --$@=defconfig $(Kconfig)
100
101 defconfig: $(obj)/conf
102 ifeq ($(KBUILD_DEFCONFIG),)
103         $< $(silent) --defconfig $(Kconfig)
104 else
105 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
106         @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
107         $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
108 else
109         @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
110         $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
111 endif
112 endif
113
114 %_defconfig: $(obj)/conf
115         $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
116
117 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
118
119 %.config: $(obj)/conf
120         $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
121         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
122         +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
123
124 PHONY += kvmconfig
125 kvmconfig: kvm_guest.config
126         @:
127
128 PHONY += xenconfig
129 xenconfig: xen.config
130         @:
131
132 PHONY += tinyconfig
133 tinyconfig:
134         $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
135
136 # Help text used by make help
137 help:
138         @echo  '  config          - Update current config utilising a line-oriented program'
139         @echo  '  nconfig         - Update current config utilising a ncurses menu based'
140         @echo  '                    program'
141         @echo  '  menuconfig      - Update current config utilising a menu based program'
142         @echo  '  xconfig         - Update current config utilising a Qt based front-end'
143         @echo  '  gconfig         - Update current config utilising a GTK+ based front-end'
144         @echo  '  oldconfig       - Update current config utilising a provided .config as base'
145         @echo  '  localmodconfig  - Update current config disabling modules not loaded'
146         @echo  '  localyesconfig  - Update current config converting local mods to core'
147         @echo  '  defconfig       - New config with default from ARCH supplied defconfig'
148         @echo  '  savedefconfig   - Save current config as ./defconfig (minimal config)'
149         @echo  '  allnoconfig     - New config where all options are answered with no'
150         @echo  '  allyesconfig    - New config where all options are accepted with yes'
151         @echo  '  allmodconfig    - New config selecting modules when possible'
152         @echo  '  alldefconfig    - New config with all symbols set to default'
153         @echo  '  randconfig      - New config with random answer to all options'
154         @echo  '  listnewconfig   - List new options'
155         @echo  '  olddefconfig    - Same as oldconfig but sets new symbols to their'
156         @echo  '                    default value without prompting'
157         @echo  '  kvmconfig       - Enable additional options for kvm guest kernel support'
158         @echo  '  xenconfig       - Enable additional options for xen dom0 and guest kernel support'
159         @echo  '  tinyconfig      - Configure the tiniest possible kernel'
160
161 # lxdialog stuff
162 check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
163
164 # Use recursively expanded variables so we do not call gcc unless
165 # we really need to do so. (Do not call gcc as part of make mrproper)
166 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
167                     -DLOCALE
168
169 # ===========================================================================
170 # Shared Makefile for the various kconfig executables:
171 # conf:   Used for defconfig, oldconfig and related targets
172 # nconf:  Used for the nconfig target.
173 #         Utilizes ncurses
174 # mconf:  Used for the menuconfig target
175 #         Utilizes the lxdialog package
176 # qconf:  Used for the xconfig target
177 #         Based on Qt which needs to be installed to compile it
178 # gconf:  Used for the gconfig target
179 #         Based on GTK+ which needs to be installed to compile it
180 # object files used by all kconfig flavours
181
182 lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
183 lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
184
185 conf-objs       := conf.o  zconf.tab.o
186 mconf-objs     := mconf.o zconf.tab.o $(lxdialog)
187 nconf-objs     := nconf.o zconf.tab.o nconf.gui.o
188 kxgettext-objs  := kxgettext.o zconf.tab.o
189 qconf-cxxobjs   := qconf.o
190 qconf-objs      := zconf.tab.o
191 gconf-objs      := gconf.o zconf.tab.o
192
193 hostprogs-y := conf nconf mconf kxgettext qconf gconf
194
195 targets         += zconf.tab.c zconf.lex.c
196 clean-files     := qconf.moc .tmp_qtcheck .tmp_gtkcheck
197 clean-files     += zconf.tab.c zconf.lex.c gconf.glade.h
198 clean-files     += config.pot linux.pot
199
200 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
201 PHONY += $(obj)/dochecklxdialog
202 $(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/dochecklxdialog
203 $(obj)/dochecklxdialog:
204         $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
205
206 always := dochecklxdialog
207
208 # Add environment specific flags
209 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
210 HOST_EXTRACXXFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCXX) $(HOSTCXXFLAGS))
211
212 # generated files seem to need this to find local include files
213 HOSTCFLAGS_zconf.lex.o  := -I$(src)
214 HOSTCFLAGS_zconf.tab.o  := -I$(src)
215
216 HOSTLOADLIBES_qconf     = $(KC_QT_LIBS)
217 HOSTCXXFLAGS_qconf.o    = $(KC_QT_CFLAGS)
218
219 HOSTLOADLIBES_gconf     = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
220 HOSTCFLAGS_gconf.o      = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
221                           -Wno-missing-prototypes
222
223 HOSTLOADLIBES_mconf   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
224
225 HOSTLOADLIBES_nconf     = $(shell \
226                                 pkg-config --libs menuw panelw ncursesw 2>/dev/null \
227                                 || pkg-config --libs menu panel ncurses 2>/dev/null \
228                                 || echo "-lmenu -lpanel -lncurses"  )
229 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
230
231 ifeq ($(MAKECMDGOALS),xconfig)
232 $(obj)/.tmp_qtcheck: $(src)/Makefile
233 -include $(obj)/.tmp_qtcheck
234
235 # Qt needs some extra effort...
236 $(obj)/.tmp_qtcheck:
237         @set -e; $(kecho) "  CHECK   qt"; \
238         if pkg-config --exists Qt5Core; then \
239             cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \
240             libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \
241             moc=`pkg-config --variable=host_bins Qt5Core`/moc; \
242         elif pkg-config --exists QtCore; then \
243             cflags=`pkg-config --cflags QtCore QtGui`; \
244             libs=`pkg-config --libs QtCore QtGui`; \
245             moc=`pkg-config --variable=moc_location QtCore`; \
246         else \
247             echo >&2 "*"; \
248             echo >&2 "* Could not find Qt via pkg-config."; \
249             echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \
250             echo >&2 "*"; \
251             exit 1; \
252         fi; \
253         echo "KC_QT_CFLAGS=$$cflags" > $@; \
254         echo "KC_QT_LIBS=$$libs" >> $@; \
255         echo "KC_QT_MOC=$$moc" >> $@
256 endif
257
258 $(obj)/gconf.o: $(obj)/.tmp_gtkcheck
259
260 ifeq ($(MAKECMDGOALS),gconfig)
261 -include $(obj)/.tmp_gtkcheck
262
263 # GTK+ needs some extra effort, too...
264 $(obj)/.tmp_gtkcheck:
265         @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then               \
266                 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then                  \
267                         touch $@;                                                               \
268                 else                                                                    \
269                         echo >&2 "*";                                                   \
270                         echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \
271                         echo >&2 "*";                                                   \
272                         false;                                                          \
273                 fi                                                                      \
274         else                                                                            \
275                 echo >&2 "*";                                                           \
276                 echo >&2 "* Unable to find the GTK+ installation. Please make sure that";       \
277                 echo >&2 "* the GTK+ 2.0 development package is correctly installed...";        \
278                 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0.";             \
279                 echo >&2 "*";                                                           \
280                 false;                                                                  \
281         fi
282 endif
283
284 $(obj)/zconf.tab.o: $(obj)/zconf.lex.c
285
286 $(obj)/qconf.o: $(obj)/qconf.moc
287
288 quiet_cmd_moc = MOC     $@
289       cmd_moc = $(KC_QT_MOC) -i $< -o $@
290
291 $(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
292         $(call cmd,moc)
293
294 # Extract gconf menu items for i18n support
295 $(obj)/gconf.glade.h: $(obj)/gconf.glade
296         $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
297         $(obj)/gconf.glade