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022a4bf6b5
linux_dsm_epyc7002/scripts/kconfig/Makefile
Masahiro Yamada 022a4bf6b5 kconfig: tests: add framework for Kconfig unit testing 
Many parts in Kconfig are so cryptic and need refactoring.  However,
its complexity prevents us from moving forward.  There are several
naive corner cases where it is difficult to notice breakage.  If
those are covered by unit tests, we will be able to touch the code
with more confidence.

Here is a simple test framework based on pytest.  The conftest.py
provides a fixture useful to run commands such as 'oldaskconfig' etc.
and to compare the resulted .config, stdout, stderr with expectations.

How to add test cases?
----------------------

For each test case, you should create a subdirectory under
scripts/kconfig/tests/ (so test cases are separated from each other).
Every test case directory should contain the following files:

 - __init__.py: describes test functions
 - Kconfig: the top level Kconfig file for the test

To do a useful job, test cases generally need additional data like
input .config and information about expected results.

How to run tests?
-----------------

You need python3 and pytest.  Then, run "make testconfig".  O= option
is supported.  If V=1 is given, detailed logs captured during tests
are displayed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
2018-03-26 02:04:01 +09:00

315 lines
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Makefile
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# SPDX-License-Identifier: GPL-2.0
# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile
PHONY += xconfig gconfig menuconfig config syncconfig update-po-config \
localmodconfig localyesconfig
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)
# This has become an internal implementation detail and is now deprecated
# for external use.
syncconfig: $(obj)/conf
$(Q)mkdir -p include/config include/generated
$(Q)test -e include/generated/autoksyms.h || \
touch include/generated/autoksyms.h
$< $(silent) --$@ $(Kconfig)
localyesconfig localmodconfig: $(obj)/conf
$(Q)mkdir -p include/config include/generated
$(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
# Create new linux.pot file
# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
$(Q)$(kecho) " GEN config.pot"
$(Q)xgettext --default-domain=linux \
--add-comments --keyword=_ --keyword=N_ \
--from-code=UTF-8 \
--files-from=$(srctree)/scripts/kconfig/POTFILES.in \
--directory=$(srctree) --directory=$(objtree) \
--output $(obj)/config.pot
$(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
$(Q)(for i in `ls $(srctree)/arch/*/Kconfig \
$(srctree)/arch/*/um/Kconfig`; \
do \
$(kecho) " GEN $$i"; \
$(obj)/kxgettext $$i \
>> $(obj)/config.pot; \
done )
$(Q)$(kecho) " GEN linux.pot"
$(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
--output $(obj)/linux.pot
$(Q)rm -f $(obj)/config.pot
# These targets map 1:1 to the commandline options of 'conf'
simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
alldefconfig randconfig listnewconfig olddefconfig
PHONY += $(simple-targets)
$(simple-targets): $(obj)/conf
$< $(silent) --$@ $(Kconfig)
PHONY += oldnoconfig silentoldconfig savedefconfig defconfig
# oldnoconfig is an alias of olddefconfig, because people already are dependent
# on its behavior (sets new symbols to their default value but not 'n') with the
# counter-intuitive name.
oldnoconfig: olddefconfig
@echo " WARNING: \"oldnoconfig\" target will be removed after Linux 4.19"
@echo " Please use \"olddefconfig\" instead, which is an alias."
# We do not expect manual invokcation of "silentoldcofig" (or "syncconfig").
silentoldconfig: syncconfig
@echo " WARNING: \"silentoldconfig\" has been renamed to \"syncconfig\""
@echo " and is now an internal implementation detail."
@echo " What you want is probably \"oldconfig\"."
@echo " \"silentoldconfig\" will be removed after Linux 4.19"
savedefconfig: $(obj)/conf
$< $(silent) --$@=defconfig $(Kconfig)
defconfig: $(obj)/conf
ifeq ($(KBUILD_DEFCONFIG),)
$< $(silent) --defconfig $(Kconfig)
else
ifneq ($(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
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)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
PHONY += kvmconfig
kvmconfig: kvm_guest.config
@:
PHONY += xenconfig
xenconfig: xen.config
@:
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-dirs += 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'
@echo ' 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 ' localyesconfig - Update current config converting local mods to core'
@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 ' listnewconfig - List new options'
@echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
@echo ' default value without prompting'
@echo ' kvmconfig - Enable additional options for kvm guest kernel support'
@echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
@echo ' tinyconfig - Configure the tiniest possible kernel'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
# Use recursively expanded variables so we do not call gcc unless
# we really need to do so. (Do not call gcc as part of make mrproper)
HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
-DLOCALE
# ===========================================================================
# Shared Makefile for the various kconfig executables:
# conf: Used for defconfig, oldconfig and related targets
# nconf: Used for the nconfig target.
# Utilizes ncurses
# mconf: Used for the menuconfig target
# Utilizes the lxdialog package
# qconf: Used for the xconfig target
# Based on Qt which needs to be installed to compile it
# gconf: Used for the gconfig target
# Based on GTK+ which needs to be installed to compile it
# object files used by all kconfig flavours
lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
conf-objs := conf.o zconf.tab.o
mconf-objs := mconf.o zconf.tab.o $(lxdialog)
nconf-objs := nconf.o zconf.tab.o nconf.gui.o
kxgettext-objs := kxgettext.o zconf.tab.o
qconf-cxxobjs := qconf.o
qconf-objs := zconf.tab.o
gconf-objs := gconf.o zconf.tab.o
hostprogs-y := conf nconf mconf kxgettext qconf gconf
targets += zconf.tab.c zconf.lex.c
clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
clean-files += zconf.tab.c zconf.lex.c gconf.glade.h
clean-files += config.pot linux.pot
# Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
PHONY += $(obj)/dochecklxdialog
$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/dochecklxdialog
$(obj)/dochecklxdialog:
$(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
always := dochecklxdialog
# Add environment specific flags
HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
HOST_EXTRACXXFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCXX) $(HOSTCXXFLAGS))
# generated files seem to need this to find local include files
HOSTCFLAGS_zconf.lex.o := -I$(src)
HOSTCFLAGS_zconf.tab.o := -I$(src)
HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
-Wno-missing-prototypes
HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
HOSTLOADLIBES_nconf = $(shell \
pkg-config --libs menuw panelw ncursesw 2>/dev/null \
|| pkg-config --libs menu panel ncurses 2>/dev/null \
|| echo "-lmenu -lpanel -lncurses" )
$(obj)/qconf.o: $(obj)/.tmp_qtcheck
ifeq ($(MAKECMDGOALS),xconfig)
$(obj)/.tmp_qtcheck: $(src)/Makefile
-include $(obj)/.tmp_qtcheck
# Qt needs some extra effort...
$(obj)/.tmp_qtcheck:
@set -e; $(kecho) " CHECK qt"; \
if pkg-config --exists Qt5Core; then \
cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \
libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \
moc=`pkg-config --variable=host_bins Qt5Core`/moc; \
elif pkg-config --exists QtCore; then \
cflags=`pkg-config --cflags QtCore QtGui`; \
libs=`pkg-config --libs QtCore QtGui`; \
moc=`pkg-config --variable=moc_location QtCore`; \
else \
echo >&2 "*"; \
echo >&2 "* Could not find Qt via pkg-config."; \
echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \
echo >&2 "*"; \
exit 1; \
fi; \
echo "KC_QT_CFLAGS=$$cflags" > $@; \
echo "KC_QT_LIBS=$$libs" >> $@; \
echo "KC_QT_MOC=$$moc" >> $@
endif
$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
ifeq ($(MAKECMDGOALS),gconfig)
-include $(obj)/.tmp_gtkcheck
# GTK+ needs some extra effort, too...
$(obj)/.tmp_gtkcheck:
@if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
touch $@; \
else \
echo >&2 "*"; \
echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \
echo >&2 "*"; \
false; \
fi \
else \
echo >&2 "*"; \
echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \
echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \
echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
echo >&2 "*"; \
false; \
fi
endif
$(obj)/zconf.tab.o: $(obj)/zconf.lex.c
$(obj)/qconf.o: $(obj)/qconf.moc
quiet_cmd_moc = MOC $@
cmd_moc = $(KC_QT_MOC) -i $< -o $@
$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
$(call cmd,moc)
# Extract gconf menu items for i18n support
$(obj)/gconf.glade.h: $(obj)/gconf.glade
$(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
$(obj)/gconf.glade
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