1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
# SPDX-License-Identifier: GPL-2.0
# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile
PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig \
build_menuconfig build_nconfig build_gconfig build_xconfig
ifdef KBUILD_KCONFIG
Kconfig := $(KBUILD_KCONFIG)
else
Kconfig := Kconfig
endif
ifeq ($(quiet),silent_)
silent := -s
endif
# We need this, in case the user has it in its environment
unexport CONFIG_
xconfig: $(obj)/qconf
$< $(silent) $(Kconfig)
gconfig: $(obj)/gconf
$< $(silent) $(Kconfig)
menuconfig: $(obj)/mconf
$< $(silent) $(Kconfig)
config: $(obj)/conf
$< $(silent) --oldaskconfig $(Kconfig)
nconfig: $(obj)/nconf
$< $(silent) $(Kconfig)
build_menuconfig: $(obj)/mconf
build_nconfig: $(obj)/nconf
build_gconfig: $(obj)/gconf
build_xconfig: $(obj)/qconf
localyesconfig localmodconfig: $(obj)/conf
$(Q)$(PERL) $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config
$(Q)if [ -f .config ]; then \
cmp -s .tmp.config .config || \
(mv -f .config .config.old.1; \
mv -f .tmp.config .config; \
$< $(silent) --oldconfig $(Kconfig); \
mv -f .config.old.1 .config.old) \
else \
mv -f .tmp.config .config; \
$< $(silent) --oldconfig $(Kconfig); \
fi
$(Q)rm -f .tmp.config
# These targets map 1:1 to the commandline options of 'conf'
#
# Note:
# syncconfig has become an internal implementation detail and is now
# deprecated for external use
simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
alldefconfig randconfig listnewconfig olddefconfig syncconfig \
helpnewconfig yes2modconfig mod2yesconfig
PHONY += $(simple-targets)
$(simple-targets): $(obj)/conf
$< $(silent) --$@ $(Kconfig)
PHONY += savedefconfig defconfig
savedefconfig: $(obj)/conf
$< $(silent) --$@=defconfig $(Kconfig)
defconfig: $(obj)/conf
ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
@$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
else
@$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
$(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
endif
%_defconfig: $(obj)/conf
$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
%.config: $(obj)/conf
$(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
PHONY += kvmconfig
kvmconfig: kvm_guest.config
@echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
@echo >&2 " Please use 'make $<' instead."
PHONY += xenconfig
xenconfig: xen.config
@echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
@echo >&2 " Please use 'make $<' instead."
PHONY += tinyconfig
tinyconfig:
$(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
# CHECK: -o cache_dir=<path> working?
PHONY += testconfig
testconfig: $(obj)/conf
$(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \
-o cache_dir=$(abspath $(obj)/tests/.cache) \
$(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)
clean-files += tests/.cache
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@echo ' nconfig - Update current config utilising a ncurses menu based program'
@echo ' menuconfig - Update current config utilising a menu based program'
@echo ' xconfig - Update current config utilising a Qt based front-end'
@echo ' gconfig - Update current config utilising a GTK+ based front-end'
@echo ' oldconfig - Update current config utilising a provided .config as base'
@echo ' localmodconfig - Update current config disabling modules not loaded'
@echo ' except those preserved by LMC_KEEP environment variable'
@echo ' localyesconfig - Update current config converting local mods to core'
@echo ' except those preserved by LMC_KEEP environment variable'
@echo ' defconfig - New config with default from ARCH supplied defconfig'
@echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
@echo ' allnoconfig - New config where all options are answered with no'
@echo ' allyesconfig - New config where all options are accepted with yes'
@echo ' allmodconfig - New config selecting modules when possible'
@echo ' alldefconfig - New config with all symbols set to default'
@echo ' randconfig - New config with random answer to all options'
@echo ' yes2modconfig - Change answers from yes to mod if possible'
@echo ' mod2yesconfig - Change answers from mod to yes if possible'
@echo ' listnewconfig - List new options'
@echo ' helpnewconfig - List new options and help text'
@echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
@echo ' default value without prompting'
@echo ' tinyconfig - Configure the tiniest possible kernel'
@echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)'
# ===========================================================================
# object files used by all kconfig flavours
common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
symbol.o util.o
$(obj)/lexer.lex.o: $(obj)/parser.tab.h
HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
# conf: Used for defconfig, oldconfig and related targets
hostprogs += conf
conf-objs := conf.o $(common-objs)
# nconf: Used for the nconfig target based on ncurses
hostprogs += nconf
nconf-objs := nconf.o nconf.gui.o $(common-objs)
HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
# mconf: Used for the menuconfig target based on lxdialog
hostprogs += mconf
lxdialog := $(addprefix lxdialog/, \
checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
mconf-objs := mconf.o $(lxdialog) $(common-objs)
HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
$(foreach f, mconf.o $(lxdialog), \
$(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
# qconf: Used for the xconfig target based on Qt
hostprogs += qconf
qconf-cxxobjs := qconf.o
qconf-objs := images.o $(common-objs)
HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
$(obj)/qconf.o: $(obj)/qconf-cfg $(obj)/qconf.moc
quiet_cmd_moc = MOC $@
cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) -i $< -o $@
$(obj)/%.moc: $(src)/%.h $(obj)/qconf-cfg
$(call cmd,moc)
# gconf: Used for the gconfig target based on GTK+
hostprogs += gconf
gconf-objs := gconf.o images.o $(common-objs)
HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs)
HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags)
$(obj)/gconf.o: $(obj)/gconf-cfg
# check if necessary packages are available, and configure build flags
filechk_conf_cfg = $(CONFIG_SHELL) $<
$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
$(call filechk,conf_cfg)
clean-files += *conf-cfg
|
