1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # ============================================ 2 # ===========================================================================
3 # Kernel configuration targets 3 # Kernel configuration targets
4 # These targets are used from top-level makefi 4 # These targets are used from top-level makefile
5 5
>> 6 PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig \
>> 7 build_menuconfig build_nconfig build_gconfig build_xconfig
>> 8
6 ifdef KBUILD_KCONFIG 9 ifdef KBUILD_KCONFIG
7 Kconfig := $(KBUILD_KCONFIG) 10 Kconfig := $(KBUILD_KCONFIG)
8 else 11 else
9 Kconfig := Kconfig 12 Kconfig := Kconfig
10 endif 13 endif
11 14
12 ifndef KBUILD_DEFCONFIG 15 ifndef KBUILD_DEFCONFIG
13 KBUILD_DEFCONFIG := defconfig 16 KBUILD_DEFCONFIG := defconfig
14 endif 17 endif
15 18
16 ifeq ($(quiet),silent_) 19 ifeq ($(quiet),silent_)
17 silent := -s 20 silent := -s
18 endif 21 endif
19 22
20 export KCONFIG_DEFCONFIG_LIST := !! 23 # We need this, in case the user has it in its environment
21 ifndef cross_compiling !! 24 unexport CONFIG_
22 kernel-release := $(shell uname -r) <<
23 KCONFIG_DEFCONFIG_LIST += \ <<
24 /lib/modules/$(kernel-release)/.config <<
25 /etc/kernel-config \ <<
26 /boot/config-$(kernel-release) <<
27 endif <<
28 KCONFIG_DEFCONFIG_LIST += arch/$(SRCARCH)/conf <<
29 25
30 ifneq ($(findstring c, $(KBUILD_EXTRA_WARN)),) !! 26 xconfig: $(obj)/qconf
31 export KCONFIG_WARN_UNKNOWN_SYMBOLS=1 !! 27 $< $(silent) $(Kconfig)
32 endif <<
33 28
34 ifneq ($(findstring e, $(KBUILD_EXTRA_WARN)),) !! 29 gconfig: $(obj)/gconf
35 export KCONFIG_WERROR=1 !! 30 $< $(silent) $(Kconfig)
36 endif <<
37 31
38 # We need this, in case the user has it in its !! 32 menuconfig: $(obj)/mconf
39 unexport CONFIG_ !! 33 $< $(silent) $(Kconfig)
40 34
41 config-prog := conf !! 35 config: $(obj)/conf
42 menuconfig-prog := mconf !! 36 $< $(silent) --oldaskconfig $(Kconfig)
43 nconfig-prog := nconf <<
44 gconfig-prog := gconf <<
45 xconfig-prog := qconf <<
46 <<
47 define config_rule <<
48 PHONY += $(1) <<
49 $(1): $(obj)/$($(1)-prog) <<
50 $(Q)$$< $(silent) $(Kconfig) <<
51 <<
52 PHONY += build_$(1) <<
53 build_$(1): $(obj)/$($(1)-prog) <<
54 endef <<
55 37
56 $(foreach c, config menuconfig nconfig gconfig !! 38 nconfig: $(obj)/nconf
>> 39 $< $(silent) $(Kconfig)
>> 40
>> 41 build_menuconfig: $(obj)/mconf
>> 42
>> 43 build_nconfig: $(obj)/nconf
>> 44
>> 45 build_gconfig: $(obj)/gconf
>> 46
>> 47 build_xconfig: $(obj)/qconf
57 48
58 PHONY += localmodconfig localyesconfig <<
59 localyesconfig localmodconfig: $(obj)/conf 49 localyesconfig localmodconfig: $(obj)/conf
60 $(Q)$(PERL) $(src)/streamline_config.p !! 50 $(Q)$(PERL) $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
61 $(Q)if [ -f .config ]; then 51 $(Q)if [ -f .config ]; then \
62 cmp -s .tmp.config .config || 52 cmp -s .tmp.config .config || \
63 (mv -f .config .config.old.1; 53 (mv -f .config .config.old.1; \
64 mv -f .tmp.config .config; 54 mv -f .tmp.config .config; \
65 $< $(silent) --oldconfig $(Kc 55 $< $(silent) --oldconfig $(Kconfig); \
66 mv -f .config.old.1 .config.o 56 mv -f .config.old.1 .config.old) \
67 else 57 else \
68 mv -f .tmp.config .config; 58 mv -f .tmp.config .config; \
69 $< $(silent) --oldconfig $(Kco 59 $< $(silent) --oldconfig $(Kconfig); \
70 fi 60 fi
71 $(Q)rm -f .tmp.config 61 $(Q)rm -f .tmp.config
72 62
73 # These targets map 1:1 to the commandline opt 63 # These targets map 1:1 to the commandline options of 'conf'
74 # 64 #
75 # Note: 65 # Note:
76 # syncconfig has become an internal implement 66 # syncconfig has become an internal implementation detail and is now
77 # deprecated for external use 67 # deprecated for external use
78 simple-targets := oldconfig allnoconfig allyes 68 simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
79 alldefconfig randconfig listnewconfig 69 alldefconfig randconfig listnewconfig olddefconfig syncconfig \
80 helpnewconfig yes2modconfig mod2yescon !! 70 helpnewconfig yes2modconfig mod2yesconfig
81 71
82 PHONY += $(simple-targets) 72 PHONY += $(simple-targets)
83 73
84 $(simple-targets): $(obj)/conf 74 $(simple-targets): $(obj)/conf
85 $(Q)$< $(silent) --$@ $(Kconfig) !! 75 $< $(silent) --$@ $(Kconfig)
86 76
87 PHONY += savedefconfig defconfig 77 PHONY += savedefconfig defconfig
88 78
89 savedefconfig: $(obj)/conf 79 savedefconfig: $(obj)/conf
90 $(Q)$< $(silent) --$@=defconfig $(Kcon !! 80 $< $(silent) --$@=defconfig $(Kconfig)
91 81
92 defconfig: $(obj)/conf 82 defconfig: $(obj)/conf
93 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/c 83 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
94 @$(kecho) "*** Default configuration i 84 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
95 $(Q)$< $(silent) --defconfig=arch/$(SR 85 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
96 else 86 else
97 @$(kecho) "*** Default configuration i 87 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
98 $(Q)$(MAKE) -f $(srctree)/Makefile $(K 88 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
99 endif 89 endif
100 90
101 %_defconfig: $(obj)/conf 91 %_defconfig: $(obj)/conf
102 $(Q)$< $(silent) --defconfig=arch/$(SR 92 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
103 93
104 configfiles = $(wildcard $(srctree)/kernel/con !! 94 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
105 all-config-fragments = $(call configfiles,*.co <<
106 config-fragments = $(call configfiles,$@) <<
107 95
108 %.config: $(obj)/conf 96 %.config: $(obj)/conf
109 $(if $(config-fragments),, $(error $@ !! 97 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
110 $(Q)$(CONFIG_SHELL) $(srctree)/scripts !! 98 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
111 $(Q)$(MAKE) -f $(srctree)/Makefile old 99 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
112 100
>> 101 PHONY += kvmconfig
>> 102 kvmconfig: kvm_guest.config
>> 103 @:
>> 104
>> 105 PHONY += xenconfig
>> 106 xenconfig: xen.config
>> 107 @:
>> 108
113 PHONY += tinyconfig 109 PHONY += tinyconfig
114 tinyconfig: 110 tinyconfig:
115 $(Q)KCONFIG_ALLCONFIG=kernel/configs/t !! 111 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
116 $(Q)$(MAKE) -f $(srctree)/Makefile tin <<
117 112
118 # CHECK: -o cache_dir=<path> working? 113 # CHECK: -o cache_dir=<path> working?
119 PHONY += testconfig 114 PHONY += testconfig
120 testconfig: $(obj)/conf 115 testconfig: $(obj)/conf
121 $(Q)$(PYTHON3) -B -m pytest $(src)/tes !! 116 $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \
122 -o cache_dir=$(abspath $(obj)/tests/.c 117 -o cache_dir=$(abspath $(obj)/tests/.cache) \
123 $(if $(findstring 1,$(KBUILD_VERBOSE)) 118 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)
124 clean-files += tests/.cache 119 clean-files += tests/.cache
125 120
126 # Help text used by make help 121 # Help text used by make help
127 help: 122 help:
128 @echo 'Configuration targets:' <<
129 @echo ' config - Update cur 123 @echo ' config - Update current config utilising a line-oriented program'
130 @echo ' nconfig - Update cur 124 @echo ' nconfig - Update current config utilising a ncurses menu based program'
131 @echo ' menuconfig - Update cur 125 @echo ' menuconfig - Update current config utilising a menu based program'
132 @echo ' xconfig - Update cur 126 @echo ' xconfig - Update current config utilising a Qt based front-end'
133 @echo ' gconfig - Update cur 127 @echo ' gconfig - Update current config utilising a GTK+ based front-end'
134 @echo ' oldconfig - Update cur 128 @echo ' oldconfig - Update current config utilising a provided .config as base'
135 @echo ' localmodconfig - Update cur 129 @echo ' localmodconfig - Update current config disabling modules not loaded'
136 @echo ' except tho <<
137 @echo ' localyesconfig - Update cur 130 @echo ' localyesconfig - Update current config converting local mods to core'
138 @echo ' except tho <<
139 @echo ' defconfig - New config 131 @echo ' defconfig - New config with default from ARCH supplied defconfig'
140 @echo ' savedefconfig - Save curre 132 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
141 @echo ' allnoconfig - New config 133 @echo ' allnoconfig - New config where all options are answered with no'
142 @echo ' allyesconfig - New config 134 @echo ' allyesconfig - New config where all options are accepted with yes'
143 @echo ' allmodconfig - New config 135 @echo ' allmodconfig - New config selecting modules when possible'
144 @echo ' alldefconfig - New config 136 @echo ' alldefconfig - New config with all symbols set to default'
145 @echo ' randconfig - New config 137 @echo ' randconfig - New config with random answer to all options'
146 @echo ' yes2modconfig - Change ans 138 @echo ' yes2modconfig - Change answers from yes to mod if possible'
147 @echo ' mod2yesconfig - Change ans 139 @echo ' mod2yesconfig - Change answers from mod to yes if possible'
148 @echo ' mod2noconfig - Change ans <<
149 @echo ' listnewconfig - List new o 140 @echo ' listnewconfig - List new options'
150 @echo ' helpnewconfig - List new o 141 @echo ' helpnewconfig - List new options and help text'
151 @echo ' olddefconfig - Same as ol 142 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
152 @echo ' default va 143 @echo ' default value without prompting'
>> 144 @echo ' kvmconfig - Enable additional options for kvm guest kernel support'
>> 145 @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel'
>> 146 @echo ' support'
153 @echo ' tinyconfig - Configure 147 @echo ' tinyconfig - Configure the tiniest possible kernel'
154 @echo ' testconfig - Run Kconfi 148 @echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)'
155 @echo '' <<
156 @echo 'Configuration topic targets:' <<
157 @$(foreach f, $(all-config-fragments), <<
158 if help=$$(grep -m1 '^# Help: <<
159 printf ' %-25s - %s\n <<
160 fi;) <<
161 149
162 # ============================================ 150 # ===========================================================================
163 # object files used by all kconfig flavours 151 # object files used by all kconfig flavours
164 common-objs := confdata.o expr.o lexer.lex !! 152 common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
165 preprocess.o symbol.o util. !! 153 symbol.o util.o
166 154
167 $(obj)/lexer.lex.o: $(obj)/parser.tab.h 155 $(obj)/lexer.lex.o: $(obj)/parser.tab.h
168 HOSTCFLAGS_lexer.lex.o := -I $(src) !! 156 HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
169 HOSTCFLAGS_parser.tab.o := -I $(src) !! 157 HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
170 158
171 # conf: Used for defconfig, oldconfig and rela 159 # conf: Used for defconfig, oldconfig and related targets
172 hostprogs += conf 160 hostprogs += conf
173 conf-objs := conf.o $(common-objs) 161 conf-objs := conf.o $(common-objs)
174 162
175 # nconf: Used for the nconfig target based on 163 # nconf: Used for the nconfig target based on ncurses
176 hostprogs += nconf 164 hostprogs += nconf
177 nconf-objs := nconf.o nconf.gui.o mnconf- !! 165 nconf-objs := nconf.o nconf.gui.o $(common-objs)
178 166
179 HOSTLDLIBS_nconf = $(call read-file, $(o !! 167 HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
180 HOSTCFLAGS_nconf.o = $(call read-file, $(o !! 168 HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
181 HOSTCFLAGS_nconf.gui.o = $(call read-file, $(o !! 169 HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
182 170
183 $(obj)/nconf: | $(obj)/nconf-libs !! 171 $(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
184 $(obj)/nconf.o $(obj)/nconf.gui.o: | $(obj)/nc <<
185 172
186 # mconf: Used for the menuconfig target based 173 # mconf: Used for the menuconfig target based on lxdialog
187 hostprogs += mconf 174 hostprogs += mconf
188 lxdialog := $(addprefix lxdialog/, \ 175 lxdialog := $(addprefix lxdialog/, \
189 checklist.o inputbox.o me 176 checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
190 mconf-objs := mconf.o $(lxdialog) mnconf- !! 177 mconf-objs := mconf.o $(lxdialog) $(common-objs)
191 178
192 HOSTLDLIBS_mconf = $(call read-file, $(obj)/mc !! 179 HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
193 $(foreach f, mconf.o $(lxdialog), \ 180 $(foreach f, mconf.o $(lxdialog), \
194 $(eval HOSTCFLAGS_$f = $$(call read-file, $( !! 181 $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
195 182
196 $(obj)/mconf: | $(obj)/mconf-libs !! 183 $(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
197 $(addprefix $(obj)/, mconf.o $(lxdialog)): | $ <<
198 184
199 # qconf: Used for the xconfig target based on 185 # qconf: Used for the xconfig target based on Qt
200 hostprogs += qconf 186 hostprogs += qconf
201 qconf-cxxobjs := qconf.o qconf-moc.o !! 187 qconf-cxxobjs := qconf.o
202 qconf-objs := images.o $(common-objs) 188 qconf-objs := images.o $(common-objs)
203 189
204 HOSTLDLIBS_qconf = $(call read-file, $ !! 190 HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
205 HOSTCXXFLAGS_qconf.o = -std=c++11 -fPIC $( !! 191 HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
206 HOSTCXXFLAGS_qconf-moc.o = -std=c++11 -fPIC $( <<
207 $(obj)/qconf: | $(obj)/qconf-libs <<
208 $(obj)/qconf.o $(obj)/qconf-moc.o: | $(obj)/qc <<
209 192
210 quiet_cmd_moc = MOC $@ !! 193 $(obj)/qconf.o: $(obj)/qconf-cfg $(obj)/qconf.moc
211 cmd_moc = $(call read-file, $(obj)/qconf <<
212 194
213 $(obj)/qconf-moc.cc: $(src)/qconf.h FORCE | $( !! 195 quiet_cmd_moc = MOC $@
214 $(call if_changed,moc) !! 196 cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) -i $< -o $@
215 197
216 targets += qconf-moc.cc !! 198 $(obj)/%.moc: $(src)/%.h $(obj)/qconf-cfg
>> 199 $(call cmd,moc)
217 200
218 # gconf: Used for the gconfig target based on 201 # gconf: Used for the gconfig target based on GTK+
219 hostprogs += gconf 202 hostprogs += gconf
220 gconf-objs := gconf.o images.o $(common-o 203 gconf-objs := gconf.o images.o $(common-objs)
221 204
222 HOSTLDLIBS_gconf = $(call read-file, $(obj)/ !! 205 HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs)
223 HOSTCFLAGS_gconf.o = $(call read-file, $(obj)/ !! 206 HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags)
224 207
225 $(obj)/gconf: | $(obj)/gconf-libs !! 208 $(obj)/gconf.o: $(obj)/gconf-cfg
226 $(obj)/gconf.o: | $(obj)/gconf-cflags <<
227 209
228 # check if necessary packages are available, a 210 # check if necessary packages are available, and configure build flags
229 cmd_conf_cfg = $< $(addprefix $(obj)/$*conf-, !! 211 filechk_conf_cfg = $(CONFIG_SHELL) $<
230 212
231 $(obj)/%conf-cflags $(obj)/%conf-libs $(obj)/% !! 213 $(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
232 $(call cmd,conf_cfg) !! 214 $(call filechk,conf_cfg)
233 215
234 clean-files += *conf-cflags *conf-libs *conf-b !! 216 clean-files += *conf-cfg
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