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https://github.com/torvalds/linux
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kconfig: refactor Makefile to reduce process forks
Refactor Makefile and use read-file macro. For Make >= 4.2, it can read out a file by using the built-in function. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
This commit is contained in:
Masahiro Yamada
parent
6768fa4bcb
commit
3122c84409
4
scripts/kconfig/.gitignore
vendored
4
scripts/kconfig/.gitignore
vendored
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@ -1,5 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0-only
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/conf
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/[gmnq]conf
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/[gmnq]conf-cfg
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/[gmnq]conf-cflags
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/[gmnq]conf-libs
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/qconf-bin
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/qconf-moc.cc
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@ -159,11 +159,12 @@ conf-objs := conf.o $(common-objs)
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hostprogs += nconf
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nconf-objs := nconf.o nconf.gui.o $(common-objs)
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HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
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HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
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HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
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HOSTLDLIBS_nconf = $(call read-file, $(obj)/nconf-libs)
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HOSTCFLAGS_nconf.o = $(call read-file, $(obj)/nconf-cflags)
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HOSTCFLAGS_nconf.gui.o = $(call read-file, $(obj)/nconf-cflags)
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$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
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$(obj)/nconf: | $(obj)/nconf-libs
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$(obj)/nconf.o $(obj)/nconf.gui.o: | $(obj)/nconf-cflags
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# mconf: Used for the menuconfig target based on lxdialog
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hostprogs += mconf
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@ -171,27 +172,28 @@ lxdialog := $(addprefix lxdialog/, \
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checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
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mconf-objs := mconf.o $(lxdialog) $(common-objs)
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HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
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HOSTLDLIBS_mconf = $(call read-file, $(obj)/mconf-libs)
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$(foreach f, mconf.o $(lxdialog), \
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$(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
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$(eval HOSTCFLAGS_$f = $$(call read-file, $(obj)/mconf-cflags)))
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$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
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$(obj)/mconf: | $(obj)/mconf-libs
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$(addprefix $(obj)/, mconf.o $(lxdialog)): | $(obj)/mconf-cflags
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# qconf: Used for the xconfig target based on Qt
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hostprogs += qconf
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qconf-cxxobjs := qconf.o qconf-moc.o
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qconf-objs := images.o $(common-objs)
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HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
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HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
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HOSTCXXFLAGS_qconf-moc.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
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$(obj)/qconf.o: $(obj)/qconf-cfg
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HOSTLDLIBS_qconf = $(call read-file, $(obj)/qconf-libs)
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HOSTCXXFLAGS_qconf.o = -std=c++11 -fPIC $(call read-file, $(obj)/qconf-cflags)
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HOSTCXXFLAGS_qconf-moc.o = -std=c++11 -fPIC $(call read-file, $(obj)/qconf-cflags)
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$(obj)/qconf: | $(obj)/qconf-libs
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$(obj)/qconf.o $(obj)/qconf-moc.o: | $(obj)/qconf-cflags
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quiet_cmd_moc = MOC $@
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cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) $< -o $@
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cmd_moc = $(call read-file, $(obj)/qconf-bin)/moc $< -o $@
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$(obj)/qconf-moc.cc: $(src)/qconf.h $(obj)/qconf-cfg FORCE
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$(obj)/qconf-moc.cc: $(src)/qconf.h FORCE | $(obj)/qconf-bin
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$(call if_changed,moc)
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targets += qconf-moc.cc
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@ -200,15 +202,16 @@ targets += qconf-moc.cc
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hostprogs += gconf
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gconf-objs := gconf.o images.o $(common-objs)
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HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs)
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HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags)
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HOSTLDLIBS_gconf = $(call read-file, $(obj)/gconf-libs)
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HOSTCFLAGS_gconf.o = $(call read-file, $(obj)/gconf-cflags)
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$(obj)/gconf.o: $(obj)/gconf-cfg
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$(obj)/gconf: | $(obj)/gconf-libs
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$(obj)/gconf.o: | $(obj)/gconf-cflags
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# check if necessary packages are available, and configure build flags
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filechk_conf_cfg = $(CONFIG_SHELL) $<
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cmd_conf_cfg = $< $(addprefix $(obj)/$*conf-, cflags libs bin)
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$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
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$(call filechk,conf_cfg)
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$(obj)/%conf-cflags $(obj)/%conf-libs $(obj)/%conf-bin: $(src)/%conf-cfg.sh
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$(call cmd,conf_cfg)
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clean-files += *conf-cfg
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clean-files += *conf-cflags *conf-libs *conf-bin
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@ -1,6 +1,9 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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cflags=$1
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libs=$2
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PKG="gtk+-2.0 gmodule-2.0 libglade-2.0"
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if [ -z "$(command -v ${HOSTPKG_CONFIG})" ]; then
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@ -26,5 +29,5 @@ if ! ${HOSTPKG_CONFIG} --atleast-version=2.0.0 gtk+-2.0; then
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exit 1
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fi
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echo cflags=\"$(${HOSTPKG_CONFIG} --cflags $PKG)\"
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echo libs=\"$(${HOSTPKG_CONFIG} --libs $PKG)\"
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${HOSTPKG_CONFIG} --cflags ${PKG} > ${cflags}
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${HOSTPKG_CONFIG} --libs ${PKG} > ${libs}
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@ -1,19 +1,22 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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cflags=$1
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libs=$2
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PKG="ncursesw"
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PKG2="ncurses"
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if [ -n "$(command -v ${HOSTPKG_CONFIG})" ]; then
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if ${HOSTPKG_CONFIG} --exists $PKG; then
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echo cflags=\"$(${HOSTPKG_CONFIG} --cflags $PKG)\"
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echo libs=\"$(${HOSTPKG_CONFIG} --libs $PKG)\"
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${HOSTPKG_CONFIG} --cflags ${PKG} > ${cflags}
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${HOSTPKG_CONFIG} --libs ${PKG} > ${libs}
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exit 0
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fi
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if ${HOSTPKG_CONFIG} --exists $PKG2; then
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echo cflags=\"$(${HOSTPKG_CONFIG} --cflags $PKG2)\"
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echo libs=\"$(${HOSTPKG_CONFIG} --libs $PKG2)\"
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if ${HOSTPKG_CONFIG} --exists ${PKG2}; then
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${HOSTPKG_CONFIG} --cflags ${PKG2} > ${cflags}
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${HOSTPKG_CONFIG} --libs ${PKG2} > ${libs}
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exit 0
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fi
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fi
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@ -22,22 +25,22 @@ fi
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# (Even if it is installed, some distributions such as openSUSE cannot
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# find ncurses by pkg-config.)
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if [ -f /usr/include/ncursesw/ncurses.h ]; then
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echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
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echo libs=\"-lncursesw\"
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echo -D_GNU_SOURCE -I/usr/include/ncursesw > ${cflags}
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echo -lncursesw > ${libs}
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exit 0
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fi
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if [ -f /usr/include/ncurses/ncurses.h ]; then
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echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncurses\"
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echo libs=\"-lncurses\"
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echo -D_GNU_SOURCE -I/usr/include/ncurses > ${cflags}
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echo -lncurses > ${libs}
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exit 0
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fi
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# As a final fallback before giving up, check if $HOSTCC knows of a default
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# ncurses installation (e.g. from a vendor-specific sysroot).
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if echo '#include <ncurses.h>' | ${HOSTCC} -E - >/dev/null 2>&1; then
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echo cflags=\"-D_GNU_SOURCE\"
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echo libs=\"-lncurses\"
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echo -D_GNU_SOURCE > ${cflags}
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echo -lncurses > ${libs}
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exit 0
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fi
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@ -1,19 +1,22 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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cflags=$1
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libs=$2
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PKG="ncursesw menuw panelw"
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PKG2="ncurses menu panel"
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if [ -n "$(command -v ${HOSTPKG_CONFIG})" ]; then
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if ${HOSTPKG_CONFIG} --exists $PKG; then
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echo cflags=\"$(${HOSTPKG_CONFIG} --cflags $PKG)\"
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echo libs=\"$(${HOSTPKG_CONFIG} --libs $PKG)\"
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${HOSTPKG_CONFIG} --cflags ${PKG} > ${cflags}
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${HOSTPKG_CONFIG} --libs ${PKG} > ${libs}
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exit 0
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fi
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if ${HOSTPKG_CONFIG} --exists $PKG2; then
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echo cflags=\"$(${HOSTPKG_CONFIG} --cflags $PKG2)\"
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echo libs=\"$(${HOSTPKG_CONFIG} --libs $PKG2)\"
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${HOSTPKG_CONFIG} --cflags ${PKG2} > ${cflags}
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${HOSTPKG_CONFIG} --libs ${PKG2} > ${libs}
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exit 0
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fi
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fi
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@ -22,20 +25,20 @@ fi
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# (Even if it is installed, some distributions such as openSUSE cannot
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# find ncurses by pkg-config.)
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if [ -f /usr/include/ncursesw/ncurses.h ]; then
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echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
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echo libs=\"-lncursesw -lmenuw -lpanelw\"
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echo -D_GNU_SOURCE -I/usr/include/ncursesw > ${cflags}
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echo -lncursesw -lmenuw -lpanelw > ${libs}
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exit 0
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fi
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if [ -f /usr/include/ncurses/ncurses.h ]; then
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echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncurses\"
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echo libs=\"-lncurses -lmenu -lpanel\"
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echo -D_GNU_SOURCE -I/usr/include/ncurses > ${cflags}
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echo -lncurses -lmenu -lpanel > ${libs}
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exit 0
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fi
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if [ -f /usr/include/ncurses.h ]; then
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echo cflags=\"-D_GNU_SOURCE\"
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echo libs=\"-lncurses -lmenu -lpanel\"
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echo -D_GNU_SOURCE > ${cflags}
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echo -lncurses -lmenu -lpanel > ${libs}
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exit 0
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fi
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@ -1,6 +1,10 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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cflags=$1
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libs=$2
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bin=$3
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PKG="Qt5Core Qt5Gui Qt5Widgets"
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if [ -z "$(command -v ${HOSTPKG_CONFIG})" ]; then
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@ -11,9 +15,9 @@ if [ -z "$(command -v ${HOSTPKG_CONFIG})" ]; then
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fi
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if ${HOSTPKG_CONFIG} --exists $PKG; then
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echo cflags=\"-std=c++11 -fPIC $(${HOSTPKG_CONFIG} --cflags $PKG)\"
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echo libs=\"$(${HOSTPKG_CONFIG} --libs $PKG)\"
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echo moc=\"$(${HOSTPKG_CONFIG} --variable=host_bins Qt5Core)/moc\"
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${HOSTPKG_CONFIG} --cflags ${PKG} > ${cflags}
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${HOSTPKG_CONFIG} --libs ${PKG} > ${libs}
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${HOSTPKG_CONFIG} --variable=host_bins Qt5Core > ${bin}
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exit 0
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fi
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@ -47,3 +47,5 @@ rm -f arch/riscv/purgatory/kexec-purgatory.c
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rm -f scripts/extract-cert
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rm -f arch/x86/purgatory/kexec-purgatory.c
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rm -f scripts/kconfig/[gmnq]conf-cfg
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