xref: /openbmc/linux/scripts/kconfig/Makefile (revision 6f52b16c) 
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 silentoldconfig 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
37silentoldconfig: $(obj)/conf
38	$(Q)mkdir -p include/config include/generated
39	$(Q)test -e include/generated/autoksyms.h || \
40	    touch   include/generated/autoksyms.h
41	$< $(silent) --$@ $(Kconfig)
42
43localyesconfig 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
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 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
96savedefconfig: $(obj)/conf
97	$< $(silent) --$@=defconfig $(Kconfig)
98
99defconfig: $(obj)/conf
100ifeq ($(KBUILD_DEFCONFIG),)
101	$< $(silent) --defconfig $(Kconfig)
102else
103ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
104	@$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
105	$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
106else
107	@$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
108	$(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
109endif
110endif
111
112%_defconfig: $(obj)/conf
113	$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
114
115configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
116
117%.config: $(obj)/conf
118	$(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
119	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
120	+$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
121
122PHONY += kvmconfig
123kvmconfig: kvm_guest.config
124	@:
125
126PHONY += xenconfig
127xenconfig: xen.config
128	@:
129
130PHONY += tinyconfig
131tinyconfig:
132	$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
133
134# Help text used by make help
135help:
136	@echo  '  config	  - Update current config utilising a line-oriented program'
137	@echo  '  nconfig         - Update current config utilising a ncurses menu based'
138	@echo  '                    program'
139	@echo  '  menuconfig	  - Update current config utilising a menu based program'
140	@echo  '  xconfig	  - Update current config utilising a Qt based front-end'
141	@echo  '  gconfig	  - Update current config utilising a GTK+ based front-end'
142	@echo  '  oldconfig	  - Update current config utilising a provided .config as base'
143	@echo  '  localmodconfig  - Update current config disabling modules not loaded'
144	@echo  '  localyesconfig  - Update current config converting local mods to core'
145	@echo  '  silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
146	@echo  '  defconfig	  - New config with default from ARCH supplied defconfig'
147	@echo  '  savedefconfig   - Save current config as ./defconfig (minimal config)'
148	@echo  '  allnoconfig	  - New config where all options are answered with no'
149	@echo  '  allyesconfig	  - New config where all options are accepted with yes'
150	@echo  '  allmodconfig	  - New config selecting modules when possible'
151	@echo  '  alldefconfig    - New config with all symbols set to default'
152	@echo  '  randconfig	  - New config with random answer to all options'
153	@echo  '  listnewconfig   - List new options'
154	@echo  '  olddefconfig	  - Same as silentoldconfig but sets new symbols to their'
155	@echo  '                    default value'
156	@echo  '  kvmconfig	  - Enable additional options for kvm guest kernel support'
157	@echo  '  xenconfig       - Enable additional options for xen dom0 and guest kernel support'
158	@echo  '  tinyconfig	  - Configure the tiniest possible kernel'
159
160# lxdialog stuff
161check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
162
163# Use recursively expanded variables so we do not call gcc unless
164# we really need to do so. (Do not call gcc as part of make mrproper)
165HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
166                    -DLOCALE
167
168# ===========================================================================
169# Shared Makefile for the various kconfig executables:
170# conf:	  Used for defconfig, oldconfig and related targets
171# nconf:  Used for the nconfig target.
172#         Utilizes ncurses
173# mconf:  Used for the menuconfig target
174#         Utilizes the lxdialog package
175# qconf:  Used for the xconfig target
176#         Based on Qt which needs to be installed to compile it
177# gconf:  Used for the gconfig target
178#         Based on GTK+ which needs to be installed to compile it
179# object files used by all kconfig flavours
180
181lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
182lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
183
184conf-objs	:= conf.o  zconf.tab.o
185mconf-objs     := mconf.o zconf.tab.o $(lxdialog)
186nconf-objs     := nconf.o zconf.tab.o nconf.gui.o
187kxgettext-objs	:= kxgettext.o zconf.tab.o
188qconf-cxxobjs	:= qconf.o
189qconf-objs	:= zconf.tab.o
190gconf-objs	:= gconf.o zconf.tab.o
191
192hostprogs-y := conf nconf mconf kxgettext qconf gconf
193
194clean-files	:= qconf.moc .tmp_qtcheck .tmp_gtkcheck
195clean-files	+= zconf.tab.c zconf.lex.c gconf.glade.h
196clean-files     += config.pot linux.pot
197
198# Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
199PHONY += $(obj)/dochecklxdialog
200$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/dochecklxdialog
201$(obj)/dochecklxdialog:
202	$(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
203
204always := dochecklxdialog
205
206# Add environment specific flags
207HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
208
209# generated files seem to need this to find local include files
210HOSTCFLAGS_zconf.lex.o	:= -I$(src)
211HOSTCFLAGS_zconf.tab.o	:= -I$(src)
212
213LEX_PREFIX_zconf	:= zconf
214YACC_PREFIX_zconf	:= zconf
215
216HOSTLOADLIBES_qconf	= $(KC_QT_LIBS)
217HOSTCXXFLAGS_qconf.o	= $(KC_QT_CFLAGS)
218
219HOSTLOADLIBES_gconf	= `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
220HOSTCFLAGS_gconf.o	= `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
221                          -Wno-missing-prototypes
222
223HOSTLOADLIBES_mconf   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
224
225HOSTLOADLIBES_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: $(obj)/.tmp_qtcheck
230
231ifeq ($(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" >> $@
256endif
257
258$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
259
260ifeq ($(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 $@;								\
268		else									\
269			echo >&2 "*"; 							\
270			echo >&2 "* GTK+ is present but version >= 2.0.0 is required.";	\
271			echo >&2 "*";							\
272			false;								\
273		fi									\
274	else										\
275		echo >&2 "*"; 								\
276		echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; 	\
277		echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; 	\
278		echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; 		\
279		echo >&2 "*"; 								\
280		false;									\
281	fi
282endif
283
284$(obj)/zconf.tab.o: $(obj)/zconf.lex.c
285
286$(obj)/qconf.o: $(obj)/qconf.moc
287
288quiet_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
298