################################################################################
# Embtoolkit
# Copyright(C) 2009-2013 Abdoulaye Walsimou GAYE.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
#
# \file         buildsystem.mk
# \brief	buildsystem.mk of Embtoolkit.
# \author       Abdoulaye Walsimou GAYE <awg@embtoolkit.org>
# \date         May 2009
################################################################################

SYSROOT			:= $(EMBTK_ROOT)/sysroot-$(GNU_TARGET)-$(EMBTK_MCU_FLAG)
TOOLS			:= $(EMBTK_ROOT)/tools-$(GNU_TARGET)-$(EMBTK_MCU_FLAG)
TOOLS_BUILD		:= $(EMBTK_ROOT)/build/tools_build-$(GNU_TARGET)-$(EMBTK_MCU_FLAG)
PACKAGES_BUILD		:= $(EMBTK_ROOT)/build/packages_build-$(GNU_TARGET)-$(EMBTK_MCU_FLAG)
EMBTK_GENERATED 	:= $(EMBTK_ROOT)/generated
ROOTFS			:= $(EMBTK_GENERATED)/rootfs-$(GNU_TARGET)-$(EMBTK_MCU_FLAG)
HOSTTOOLS		:= $(EMBTK_ROOT)/host-tools-$(EMBTK_MCU_FLAG)
DOWNLOAD_DIR		:= $(patsubst %/,%,$(subst ",,$(strip $(CONFIG_EMBTK_DOWNLOAD_DIR))))
J			:= -j$(or $(CONFIG_EMBTK_NUMBER_BUILD_JOBS),1)

#
# New version of above variables names. The old names are scheduled for removal
#
embtk_sysroot		:= $(SYSROOT)
embtk_tools		:= $(TOOLS)
embtk_toolsb		:= $(TOOLS_BUILD)
embtk_pkgb		:= $(PACKAGES_BUILD)
embtk_generated		:= $(EMBTK_GENERATED)
embtk_rootfs		:= $(ROOTFS)
embtk_htools		:= $(HOSTTOOLS)
__embtk_dldir		:= $(patsubst %/,%,$(call __embtk_mk_uquote,$(CONFIG_EMBTK_DOWNLOAD_DIR)))
embtk_dldir		:= $(or $(__embtk_dldir),$(EMBTK_ROOT)/dl)


define __embtk_kconfig_buildrun
	PKG_CONFIG_PATH=$(EMBTK_HOST_PKG_CONFIG_PATH)				\
	$(MAKE) -f scripts/Makefile.build					\
		obj=$(EMBTK_ROOT)/scripts/kconfig				\
		EMBTK_DEFAULT_DL="$(EMBTK_ROOT)/dl/"				\
		EMBTK_VERSION=$(EMBTK_VERSION)					\
		quiet=quiet_ KBUILD_VERBOSE=0 $(1)
endef

define __embtk_mk_xconfig
	$(if $(CONFIG_EMBTK_DOTCONFIG),true,
		if [ -e $(EMBTK_DOTCONFIG).old ]; then				\
			cp $(EMBTK_DOTCONFIG).old  $(EMBTK_DOTCONFIG);		\
		fi)
	$(call __embtk_kconfig_buildrun,$(1))
endef

xconfig menuconfig olddefconfig: embtk_kconfig_basic
	$(Q)$(call __embtk_mk_xconfig,$@)

embtk_kconfig_basic:
	$(Q)$(MAKE) -f scripts/Makefile.build					\
		obj=$(EMBTK_ROOT)/scripts/basic quiet=quiet_ KBUILD_VERBOSE=0

__bsystem_xtoolchain_decompressed := $(wildcard $(embtk_generated)/toolchain-*/.*.embtk.decompressed)
clean: toolchain_clean rmallpath
	$(Q)$(__embtk_kconfig_clean)
	[ -e .config ] && cp .config .config.old || true
	$(Q)rm -rf .config kbuild.log .fakeroot*
	$(Q)$(if $(__bsystem_xtoolchain_decompressed),rm -rf $(__bsystem_xtoolchain_decompressed))

distclean: clean
	$(Q)rm -rf dl/* src/*.git src/*.svn .config.old
	$(Q)rm -rf $(embtk_generated)

define __embtk_mk_pwarning_restartbuild
	$(call embtk_pwarning,"Wrong make target - Use correct make target")
	$(call embtk_echo_yellow,"You are trying to restart all the build while it is already")
	$(call embtk_echo_yellow,"done. Please use the correct make target!!!")
	echo
	$(MAKE) help
endef

define __embtk_mk_print_selectedfeatures
	$(call embtk_pinfo,"Starting build of selected features...")
	$(call embtk_echo_blue," ~~~~~~~~~~~ ")
	$(call embtk_echo_blue,"| Toolchain |")
	$(call embtk_echo_blue," ~~~~~~~~~~~ ")
	$(call embtk_echo_blue,"\tEmbToolkit          : v$(EMBTK_VERSION)")
	$(call embtk_echo_blue,"\tArchitecture        : $(LINUX_ARCH) ($(EMBTK_MCU_FLAG))")
	$(call embtk_echo_blue,"\tLinux kernel headers: linux-$(call __embtk_pkg_version,linux)")
	$(call embtk_echo_blue,"\tBinutils            : binutils-$(call  __embtk_pkg_version,binutils)")
	$(if $(CONFIG_EMTK_HAVE_LLVM),
	$(call embtk_echo_blue,"\tCLANG/LLVM          : clang/llvm-$(call __embtk_pkg_version,llvm)"))
	$(call embtk_echo_blue,"\tGCC                 : gcc-$(call __embtk_pkg_version,gcc)")
	$(call embtk_echo_blue,"\tC library           : $(call __embtk_pkg_name,$(embtk_clib))-$(call __embtk_pkg_version,$(embtk_clib))")
	$(if $(CONFIG_EMBTK_HAVE_GDB_SYSTEM),
	$(call embtk_echo_blue,"\tGDB                 : gdb-$(call __embtk_pkg_version,gdb)"))
	$(if $(CONFIG_EMBTK_HAVE_STRACE),
	$(call embtk_echo_blue,"\tStrace              : strace-$(call __embtk_pkg_version,strace)"))
	$(call embtk_echo_blue," ~~~~~~~~~~~~ ")
	$(call embtk_echo_blue,"| Host tools |")
	$(call embtk_echo_blue," ~~~~~~~~~~~~ ")
	$(call embtk_echo_blue,"\tNumber of host tools packages needed:$(__embtk_hosttools_nrpkgs-y)")
	$(if $(CONFIG_EMBTK_HAVE_ROOTFS),
		$(call embtk_echo_blue," ~~~~~~~~~~~~~~~~~~ ")
		$(call embtk_echo_blue,"| Root FS packages |")
		$(call embtk_echo_blue," ~~~~~~~~~~~~~~~~~~ ")
		$(call embtk_echo_blue,"\tNumber of root FS packages:$(__embtk_rootfs_nrpkgs-y)")
		$(call embtk_echo_blue," ~~~~~~~~~~~~~~~ ")
		$(call embtk_echo_blue,"| Root FS types |")
		$(call embtk_echo_blue," ~~~~~~~~~~~~~~~ ")
		$(call embtk_echo_blue,"\tTAR.BZ2    : Yes")
		$(call embtk_echo_blue,"\tInitramfs  : $(if $(CONFIG_EMBTK_ROOTFS_HAVE_INITRAMFS_CPIO),Yes,No)")
		$(call embtk_echo_blue,"\tsquashFS   : $(if $(CONFIG_EMBTK_ROOTFS_HAVE_SQUASHFS),Yes,No)")
		$(call embtk_echo_blue,"\tJFFS2      : $(if $(CONFIG_EMBTK_ROOTFS_HAVE_JFFS2),Yes,No)"))
endef

define __embtk_mk_startbuild
	$(__embtk_mk_print_selectedfeatures)
	$(MAKE) toolchain_install rootfs_build successful_build
endef

__bsystem_toolchain_decompressed := $(wildcard $(call __embtk_pkg_dotdecompressed_f,toolchain))
startbuild:
	$(if $(__bsystem_toolchain_decompressed),				\
		$(__embtk_mk_pwarning_restartbuild),$(__embtk_mk_startbuild))

define __embtk_mk_initsysrootdirs
	mkdir -p $(embtk_sysroot)
	mkdir -p $(embtk_sysroot)/etc
	mkdir -p $(embtk_sysroot)/lib
	mkdir -p $(embtk_sysroot)/usr
	mkdir -p $(embtk_sysroot)/root
	mkdir -p $(embtk_sysroot)/usr/lib
	$(if $(CONFIG_EMBTK_32BITS_FS),,					\
		cd $(embtk_sysroot); rm -rf lib64; ln -sf lib lib64;		\
		cd $(embtk_sysroot)/usr; rm -rf lib64; ln -sf lib lib64)
	$(if $(CONFIG_EMBTK_64BITS_FS_COMPAT32),				\
		cd $(embtk_sysroot);						\
			 rm -rf lib64; ln -sf lib lib64; mkdir -p lib32;	\
		cd $(embtk_sysroot)/usr;					\
			 rm -rf lib64; ln -sf lib lib64; mkdir -p lib32)
endef

define __embtk_mk_inittoolsdirs
	mkdir -p $(embtk_tools)
	mkdir -p $(embtk_toolsb)
endef

define __embtk_mk_initpkgdirs
	mkdir -p $(EMBTK_ROOT)/build
	mkdir -p $(embtk_pkgb)
endef

define __embtk_mk_inithosttoolsdirs
	mkdir -p $(embtk_htools)
	mkdir -p $(embtk_htools)/usr
	mkdir -p $(embtk_htools)/usr/include
	mkdir -p $(embtk_htools)/usr/local
endef

define __embtk_kconfig_clean
	rm -rf $(EMBTK_ROOT)/scripts/basic/fixdep
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'config*')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'lex.*.c')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'zconf.lex.c')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name '*.tab.c')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name '*.tab.h')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'zconf.hash.c')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name '*.moc')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'lkc_defs.h')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name '*.o')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name '*.tmp_qtcheck')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name '*.tmp_gtkcheck')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'conf')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'mconf')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'qconf')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'gconf')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/kconfig -type f -name 'kxgettext')
	rm -rf $$(find $(EMBTK_ROOT)/scripts/ -type f -name '*.*.cmd')
endef

rmallpath:
	$(Q)rm -rf $(embtk_pkgb)* $(embtk_rootfs)* $(embtk_tools)* $(embtk_toolsb)*
	$(Q)rm -rf $(embtk_sysroot)* $(embtk_htools)* $(embtk_generated)/rootfs-*
	$(Q)$(if $(CONFIG_EMBTK_CACHE_PATCHES),,rm -rf $(embtk_dldir)/*.patch)