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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 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
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 := $(KBUILD_KCONFIG)
11else
12Kconfig := Kconfig
13endif
14
15ifeq ($(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
37build_menuconfig: $(obj)/mconf
38
39build_nconfig: $(obj)/nconf
40
41build_gconfig: $(obj)/gconf
42
43build_xconfig: $(obj)/qconf
44
45localyesconfig localmodconfig: $(obj)/conf
46 $(Q)$(PERL) $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
47 $(Q)if [ -f .config ]; then \
48 cmp -s .tmp.config .config || \
49 (mv -f .config .config.old.1; \
50 mv -f .tmp.config .config; \
51 $< $(silent) --oldconfig $(Kconfig); \
52 mv -f .config.old.1 .config.old) \
53 else \
54 mv -f .tmp.config .config; \
55 $< $(silent) --oldconfig $(Kconfig); \
56 fi
57 $(Q)rm -f .tmp.config
58
59# These targets map 1:1 to the commandline options of 'conf'
60#
61# Note:
62# syncconfig has become an internal implementation detail and is now
63# deprecated for external use
64simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
65 alldefconfig randconfig listnewconfig olddefconfig syncconfig \
66 helpnewconfig yes2modconfig mod2yesconfig
67
68PHONY += $(simple-targets)
69
70$(simple-targets): $(obj)/conf
71 $< $(silent) --$@ $(Kconfig)
72
73PHONY += savedefconfig defconfig
74
75savedefconfig: $(obj)/conf
76 $< $(silent) --$@=defconfig $(Kconfig)
77
78defconfig: $(obj)/conf
79ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
80 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
81 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
82else
83 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
84 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
85endif
86
87%_defconfig: $(obj)/conf
88 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
89
90configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
91
92%.config: $(obj)/conf
93 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
94 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
95 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
96
97PHONY += kvmconfig
98kvmconfig: kvm_guest.config
99 @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
100 @echo >&2 " Please use 'make $<' instead."
101
102PHONY += xenconfig
103xenconfig: xen.config
104 @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
105 @echo >&2 " Please use 'make $<' instead."
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 ' except those preserved by LMC_KEEP environment variable'
129 @echo ' localyesconfig - Update current config converting local mods to core'
130 @echo ' except those preserved by LMC_KEEP environment variable'
131 @echo ' defconfig - New config with default from ARCH supplied defconfig'
132 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
133 @echo ' allnoconfig - New config where all options are answered with no'
134 @echo ' allyesconfig - New config where all options are accepted with yes'
135 @echo ' allmodconfig - New config selecting modules when possible'
136 @echo ' alldefconfig - New config with all symbols set to default'
137 @echo ' randconfig - New config with random answer to all options'
138 @echo ' yes2modconfig - Change answers from yes to mod if possible'
139 @echo ' mod2yesconfig - Change answers from mod to yes if possible'
140 @echo ' listnewconfig - List new options'
141 @echo ' helpnewconfig - List new options and help text'
142 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
143 @echo ' default value without prompting'
144 @echo ' tinyconfig - Configure the tiniest possible kernel'
145 @echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)'
146
147# ===========================================================================
148# object files used by all kconfig flavours
149common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
150 symbol.o util.o
151
152$(obj)/lexer.lex.o: $(obj)/parser.tab.h
153HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
154HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
155
156# conf: Used for defconfig, oldconfig and related targets
157hostprogs += conf
158conf-objs := conf.o $(common-objs)
159
160# nconf: Used for the nconfig target based on ncurses
161hostprogs += nconf
162nconf-objs := nconf.o nconf.gui.o $(common-objs)
163
164HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
165HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
166HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
167
168$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
169
170# mconf: Used for the menuconfig target based on lxdialog
171hostprogs += mconf
172lxdialog := $(addprefix lxdialog/, \
173 checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
174mconf-objs := mconf.o $(lxdialog) $(common-objs)
175
176HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
177$(foreach f, mconf.o $(lxdialog), \
178 $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
179
180$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
181
182# qconf: Used for the xconfig target based on Qt
183hostprogs += qconf
184qconf-cxxobjs := qconf.o qconf-moc.o
185qconf-objs := images.o $(common-objs)
186
187HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
188HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
189HOSTCXXFLAGS_qconf-moc.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
190
191$(obj)/qconf.o: $(obj)/qconf-cfg
192
193quiet_cmd_moc = MOC $@
194 cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) $< -o $@
195
196$(obj)/qconf-moc.cc: $(src)/qconf.h $(obj)/qconf-cfg FORCE
197 $(call if_changed,moc)
198
199targets += qconf-moc.cc
200
201# gconf: Used for the gconfig target based on GTK+
202hostprogs += gconf
203gconf-objs := gconf.o images.o $(common-objs)
204
205HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs)
206HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags)
207
208$(obj)/gconf.o: $(obj)/gconf-cfg
209
210# check if necessary packages are available, and configure build flags
211filechk_conf_cfg = $(CONFIG_SHELL) $<
212
213$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
214 $(call filechk,conf_cfg)
215
216clean-files += *conf-cfg