x86/speculation: Rework speculative_store_bypass_update()

[mirror_ubuntu-artful-kernel.git] / scripts / kconfig / Makefile

# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile

PHONY += xconfig gconfig menuconfig config silentoldconfig 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)

silentoldconfig: $(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)/streamline_config.pl $(obj)/conf
        $(Q)mkdir -p include/config include/generated
        $(Q)perl $< --$@ $(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;                     \
                         $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
                         mv -f .config.old.1 .config.old)               \
        else                                                            \
                        mv -f .tmp.config .config;                      \
                        $(obj)/conf $(silent) --silentoldconfig $(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 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

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

# 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  '  silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
        @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 silentoldconfig but sets new symbols to their'
        @echo  '                    default value'
        @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

clean-files     := qconf.moc .tmp_qtcheck .tmp_gtkcheck
clean-files     += zconf.tab.c zconf.lex.c zconf.hash.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))

# generated files seem to need this to find local include files
HOSTCFLAGS_zconf.lex.o  := -I$(src)
HOSTCFLAGS_zconf.tab.o  := -I$(src)

LEX_PREFIX_zconf        := zconf
YACC_PREFIX_zconf       := zconf

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)/zconf.hash.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