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 := $(KBUILD_KCONFIG)
8 else 11 else
9 Kconfig := Kconfig 12 Kconfig := Kconfig
10 endif 13 endif
11 14
12 ifndef KBUILD_DEFCONFIG <<
13 KBUILD_DEFCONFIG := defconfig <<
14 endif <<
15 <<
16 ifeq ($(quiet),silent_) 15 ifeq ($(quiet),silent_)
17 silent := -s 16 silent := -s
18 endif 17 endif
19 18
20 export KCONFIG_DEFCONFIG_LIST := !! 19 # We need this, in case the user has it in its environment
21 ifndef cross_compiling !! 20 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 21
30 ifneq ($(findstring c, $(KBUILD_EXTRA_WARN)),) !! 22 xconfig: $(obj)/qconf
31 export KCONFIG_WARN_UNKNOWN_SYMBOLS=1 !! 23 $< $(silent) $(Kconfig)
32 endif <<
33 24
34 ifneq ($(findstring e, $(KBUILD_EXTRA_WARN)),) !! 25 gconfig: $(obj)/gconf
35 export KCONFIG_WERROR=1 !! 26 $< $(silent) $(Kconfig)
36 endif <<
37 27
38 # We need this, in case the user has it in its !! 28 menuconfig: $(obj)/mconf
39 unexport CONFIG_ !! 29 $< $(silent) $(Kconfig)
>> 30
>> 31 config: $(obj)/conf
>> 32 $< $(silent) --oldaskconfig $(Kconfig)
>> 33
>> 34 nconfig: $(obj)/nconf
>> 35 $< $(silent) $(Kconfig)
40 36
41 config-prog := conf !! 37 build_menuconfig: $(obj)/mconf
42 menuconfig-prog := mconf <<
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 38
56 $(foreach c, config menuconfig nconfig gconfig !! 39 build_nconfig: $(obj)/nconf
>> 40
>> 41 build_gconfig: $(obj)/gconf
>> 42
>> 43 build_xconfig: $(obj)/qconf
57 44
58 PHONY += localmodconfig localyesconfig <<
59 localyesconfig localmodconfig: $(obj)/conf 45 localyesconfig localmodconfig: $(obj)/conf
60 $(Q)$(PERL) $(src)/streamline_config.p !! 46 $(Q)$(PERL) $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
61 $(Q)if [ -f .config ]; then 47 $(Q)if [ -f .config ]; then \
62 cmp -s .tmp.config .config || 48 cmp -s .tmp.config .config || \
63 (mv -f .config .config.old.1; 49 (mv -f .config .config.old.1; \
64 mv -f .tmp.config .config; 50 mv -f .tmp.config .config; \
65 $< $(silent) --oldconfig $(Kc 51 $< $(silent) --oldconfig $(Kconfig); \
66 mv -f .config.old.1 .config.o 52 mv -f .config.old.1 .config.old) \
67 else 53 else \
68 mv -f .tmp.config .config; 54 mv -f .tmp.config .config; \
69 $< $(silent) --oldconfig $(Kco 55 $< $(silent) --oldconfig $(Kconfig); \
70 fi 56 fi
71 $(Q)rm -f .tmp.config 57 $(Q)rm -f .tmp.config
72 58
73 # These targets map 1:1 to the commandline opt 59 # These targets map 1:1 to the commandline options of 'conf'
74 # 60 #
75 # Note: 61 # Note:
76 # syncconfig has become an internal implement 62 # syncconfig has become an internal implementation detail and is now
77 # deprecated for external use 63 # deprecated for external use
78 simple-targets := oldconfig allnoconfig allyes 64 simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
79 alldefconfig randconfig listnewconfig 65 alldefconfig randconfig listnewconfig olddefconfig syncconfig \
80 helpnewconfig yes2modconfig mod2yescon !! 66 helpnewconfig yes2modconfig mod2yesconfig
81 67
82 PHONY += $(simple-targets) 68 PHONY += $(simple-targets)
83 69
84 $(simple-targets): $(obj)/conf 70 $(simple-targets): $(obj)/conf
85 $(Q)$< $(silent) --$@ $(Kconfig) !! 71 $< $(silent) --$@ $(Kconfig)
86 72
87 PHONY += savedefconfig defconfig 73 PHONY += savedefconfig defconfig
88 74
89 savedefconfig: $(obj)/conf 75 savedefconfig: $(obj)/conf
90 $(Q)$< $(silent) --$@=defconfig $(Kcon !! 76 $< $(silent) --$@=defconfig $(Kconfig)
91 77
92 defconfig: $(obj)/conf 78 defconfig: $(obj)/conf
93 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/c 79 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
94 @$(kecho) "*** Default configuration i 80 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
95 $(Q)$< $(silent) --defconfig=arch/$(SR 81 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
96 else 82 else
97 @$(kecho) "*** Default configuration i 83 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
98 $(Q)$(MAKE) -f $(srctree)/Makefile $(K 84 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
99 endif 85 endif
100 86
101 %_defconfig: $(obj)/conf 87 %_defconfig: $(obj)/conf
102 $(Q)$< $(silent) --defconfig=arch/$(SR 88 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
103 89
104 configfiles = $(wildcard $(srctree)/kernel/con !! 90 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
105 all-config-fragments = $(call configfiles,*.co <<
106 config-fragments = $(call configfiles,$@) <<
107 91
108 %.config: $(obj)/conf 92 %.config: $(obj)/conf
109 $(if $(config-fragments),, $(error $@ !! 93 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
110 $(Q)$(CONFIG_SHELL) $(srctree)/scripts !! 94 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
111 $(Q)$(MAKE) -f $(srctree)/Makefile old 95 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
112 96
>> 97 PHONY += kvmconfig
>> 98 kvmconfig: kvm_guest.config
>> 99 @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
>> 100 @echo >&2 " Please use 'make $<' instead."
>> 101
>> 102 PHONY += xenconfig
>> 103 xenconfig: xen.config
>> 104 @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
>> 105 @echo >&2 " Please use 'make $<' instead."
>> 106
113 PHONY += tinyconfig 107 PHONY += tinyconfig
114 tinyconfig: 108 tinyconfig:
115 $(Q)KCONFIG_ALLCONFIG=kernel/configs/t !! 109 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
116 $(Q)$(MAKE) -f $(srctree)/Makefile tin <<
117 110
118 # CHECK: -o cache_dir=<path> working? 111 # CHECK: -o cache_dir=<path> working?
119 PHONY += testconfig 112 PHONY += testconfig
120 testconfig: $(obj)/conf 113 testconfig: $(obj)/conf
121 $(Q)$(PYTHON3) -B -m pytest $(src)/tes !! 114 $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \
122 -o cache_dir=$(abspath $(obj)/tests/.c 115 -o cache_dir=$(abspath $(obj)/tests/.cache) \
123 $(if $(findstring 1,$(KBUILD_VERBOSE)) 116 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)
124 clean-files += tests/.cache 117 clean-files += tests/.cache
125 118
126 # Help text used by make help 119 # Help text used by make help
127 help: 120 help:
128 @echo 'Configuration targets:' <<
129 @echo ' config - Update cur 121 @echo ' config - Update current config utilising a line-oriented program'
130 @echo ' nconfig - Update cur 122 @echo ' nconfig - Update current config utilising a ncurses menu based program'
131 @echo ' menuconfig - Update cur 123 @echo ' menuconfig - Update current config utilising a menu based program'
132 @echo ' xconfig - Update cur 124 @echo ' xconfig - Update current config utilising a Qt based front-end'
133 @echo ' gconfig - Update cur 125 @echo ' gconfig - Update current config utilising a GTK+ based front-end'
134 @echo ' oldconfig - Update cur 126 @echo ' oldconfig - Update current config utilising a provided .config as base'
135 @echo ' localmodconfig - Update cur 127 @echo ' localmodconfig - Update current config disabling modules not loaded'
136 @echo ' except tho 128 @echo ' except those preserved by LMC_KEEP environment variable'
137 @echo ' localyesconfig - Update cur 129 @echo ' localyesconfig - Update current config converting local mods to core'
138 @echo ' except tho 130 @echo ' except those preserved by LMC_KEEP environment variable'
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'
153 @echo ' tinyconfig - Configure 144 @echo ' tinyconfig - Configure the tiniest possible kernel'
154 @echo ' testconfig - Run Kconfi 145 @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;) <<
161 146
162 # ============================================ 147 # ===========================================================================
163 # object files used by all kconfig flavours 148 # object files used by all kconfig flavours
164 common-objs := confdata.o expr.o lexer.lex !! 149 common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
165 preprocess.o symbol.o util. !! 150 symbol.o util.o
166 151
167 $(obj)/lexer.lex.o: $(obj)/parser.tab.h 152 $(obj)/lexer.lex.o: $(obj)/parser.tab.h
168 HOSTCFLAGS_lexer.lex.o := -I $(src) !! 153 HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
169 HOSTCFLAGS_parser.tab.o := -I $(src) !! 154 HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
170 155
171 # conf: Used for defconfig, oldconfig and rela 156 # conf: Used for defconfig, oldconfig and related targets
172 hostprogs += conf 157 hostprogs += conf
173 conf-objs := conf.o $(common-objs) 158 conf-objs := conf.o $(common-objs)
174 159
175 # nconf: Used for the nconfig target based on 160 # nconf: Used for the nconfig target based on ncurses
176 hostprogs += nconf 161 hostprogs += nconf
177 nconf-objs := nconf.o nconf.gui.o mnconf- !! 162 nconf-objs := nconf.o nconf.gui.o $(common-objs)
178 163
179 HOSTLDLIBS_nconf = $(call read-file, $(o !! 164 HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
180 HOSTCFLAGS_nconf.o = $(call read-file, $(o !! 165 HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
181 HOSTCFLAGS_nconf.gui.o = $(call read-file, $(o !! 166 HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
182 167
183 $(obj)/nconf: | $(obj)/nconf-libs !! 168 $(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
184 $(obj)/nconf.o $(obj)/nconf.gui.o: | $(obj)/nc <<
185 169
186 # mconf: Used for the menuconfig target based 170 # mconf: Used for the menuconfig target based on lxdialog
187 hostprogs += mconf 171 hostprogs += mconf
188 lxdialog := $(addprefix lxdialog/, \ 172 lxdialog := $(addprefix lxdialog/, \
189 checklist.o inputbox.o me 173 checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
190 mconf-objs := mconf.o $(lxdialog) mnconf- !! 174 mconf-objs := mconf.o $(lxdialog) $(common-objs)
191 175
192 HOSTLDLIBS_mconf = $(call read-file, $(obj)/mc !! 176 HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
193 $(foreach f, mconf.o $(lxdialog), \ 177 $(foreach f, mconf.o $(lxdialog), \
194 $(eval HOSTCFLAGS_$f = $$(call read-file, $( !! 178 $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
195 179
196 $(obj)/mconf: | $(obj)/mconf-libs !! 180 $(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
197 $(addprefix $(obj)/, mconf.o $(lxdialog)): | $ <<
198 181
199 # qconf: Used for the xconfig target based on 182 # qconf: Used for the xconfig target based on Qt
200 hostprogs += qconf 183 hostprogs += qconf
201 qconf-cxxobjs := qconf.o qconf-moc.o 184 qconf-cxxobjs := qconf.o qconf-moc.o
202 qconf-objs := images.o $(common-objs) 185 qconf-objs := images.o $(common-objs)
203 186
204 HOSTLDLIBS_qconf = $(call read-file, $ !! 187 HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
205 HOSTCXXFLAGS_qconf.o = -std=c++11 -fPIC $( !! 188 HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
206 HOSTCXXFLAGS_qconf-moc.o = -std=c++11 -fPIC $( !! 189 HOSTCXXFLAGS_qconf-moc.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
207 $(obj)/qconf: | $(obj)/qconf-libs !! 190
208 $(obj)/qconf.o $(obj)/qconf-moc.o: | $(obj)/qc !! 191 $(obj)/qconf.o: $(obj)/qconf-cfg
209 192
210 quiet_cmd_moc = MOC $@ 193 quiet_cmd_moc = MOC $@
211 cmd_moc = $(call read-file, $(obj)/qconf !! 194 cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) $< -o $@
212 195
213 $(obj)/qconf-moc.cc: $(src)/qconf.h FORCE | $( !! 196 $(obj)/qconf-moc.cc: $(src)/qconf.h $(obj)/qconf-cfg FORCE
214 $(call if_changed,moc) 197 $(call if_changed,moc)
215 198
216 targets += qconf-moc.cc 199 targets += qconf-moc.cc
217 200
218 # gconf: Used for the gconfig target based on 201 # gconf: Used for the gconfig target based on GTK+
219 hostprogs += gconf 202 hostprogs += gconf
220 gconf-objs := gconf.o images.o $(common-o 203 gconf-objs := gconf.o images.o $(common-objs)
221 204
222 HOSTLDLIBS_gconf = $(call read-file, $(obj)/ !! 205 HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$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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