################################################################################
# Abdoulaye Walsimou GAYE <awg@embtoolkit.org>
# Copyright(C) 2009-2012 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         toolchain.mk
# \brief	toolchain.mk of Embtoolkit
# \author       Abdoulaye Walsimou GAYE <awg@embtoolkit.org>
# \date         May 2009
################################################################################

TARGETCC		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-gcc
TARGETCXX		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-g++
TARGETAR		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-ar
TARGETRANLIB		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-ranlib
TARGETLD		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-ld
TARGETNM		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-nm
TARGETSTRIP		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-strip
TARGETOBJDUMP		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-objdump
TARGETOBJCOPY		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-objcopy
__TARGET_CFLAGS		:= $(subst ",,$(strip $(CONFIG_EMBTK_TARGET_COMPILER_CFLAGS)))
__TARGET_CFLAGS		+= $(if $(CONFIG_EMBTK_TARGET_SIZE_OPTIMIZED),-Os)
__TARGET_CFLAGS		+= $(if $(CONFIG_EMBTK_TARGET_SPEED_OPTIMIZED),-O3)
__TARGET_CFLAGS		+= $(if $(CONFIG_EMBTK_TARGET_WITH_DEBUG_DATA),-g)
TARGET_CFLAGS		:= $(strip $(__TARGET_CFLAGS))
CROSS_COMPILE		:= $(TOOLS)/bin/$(STRICT_GNU_TARGET)-

export TARGETCC TARGETCXX TARGETAR TARGETRANLIB TARGETLD TARGETNM
export TARGETSTRIP TARGETOBJDUMP TARGETOBJCOPY TARGET_CFLAGS CROSS_COMPILE

ac_cv_func_malloc_0_nonnull=yes
export ac_cv_func_malloc_0_nonnull
ac_cv_func_realloc_0_nonnull=yes
export ac_cv_func_realloc_0_nonnull

PATH			:= $(HOSTTOOLS)/usr/bin:$(HOSTTOOLS)/usr/sbin:$(PATH)
export PATH

LIBDIR			:= $(if $(CONFIG_EMBTK_64BITS_FS_COMPAT32),lib32,lib)
export LIBDIR

#ccache on host
include $(EMBTK_ROOT)/mk/ccache.mk

#GMP on host
include $(EMBTK_ROOT)/mk/gmp.mk

#MPFR
include $(EMBTK_ROOT)/mk/mpfr.mk

#MPC
include $(EMBTK_ROOT)/mk/mpc.mk

#binutils
include $(EMBTK_ROOT)/mk/binutils.mk

#GCC
include $(EMBTK_ROOT)/mk/gcc.mk

#linux kernel headers
include $(EMBTK_ROOT)/mk/linux.mk

# strace toolchain addon
include $(EMBTK_ROOT)/mk/strace.mk
TOOLCHAIN_ADDONS-$(CONFIG_EMBTK_HAVE_STRACE) += strace_install

# gdb toolchain addon
include $(EMBTK_ROOT)/packages/development/gdb/gdb.mk
TOOLCHAIN_ADDONS-$(CONFIG_EMBTK_HAVE_GDB) += gdbfull_install
TOOLCHAIN_ADDONS-$(CONFIG_EMBTK_HAVE_GDBSERVER) += gdbserver_install
TOOLCHAIN_ADDONS-$(CONFIG_EMBTK_HOST_HAVE_GDB) += gdb_host_install

#Autotools
include $(EMBTK_ROOT)/mk/libtool.mk
include $(EMBTK_ROOT)/mk/autoconf.mk
include $(EMBTK_ROOT)/mk/automake.mk
include $(EMBTK_ROOT)/mk/m4.mk
AUTOTOOLS_INSTALL	:= m4_install libtool_install autoconf_install
AUTOTOOLS_INSTALL	+= automake_install

#cmake
include $(EMBTK_ROOT)/mk/cmake.mk
EMBTK_CMAKE_INSTALL	:= $(if $(CONFIG_EMBTK_HOST_HAVE_CMAKE),cmake_install)

__embtk_toolchain_clib	= $(if $(CONFIG_EMBTK_CLIB_EGLIBC),eglibc,uclibc)
TOOLCHAIN_NAME		:= toolchain
TOOLCHAIN_PACKAGE	:= toolchain-$(GNU_TARGET)-$(__embtk_toolchain_clib)-$(EMBTK_MCU_FLAG).tar.bz2
TOOLCHAIN_DIR		:= $(EMBTK_GENERATED)/toolchain-$(GNU_TARGET)-$(__embtk_toolchain_clib)-$(EMBTK_MCU_FLAG)
TOOLCHAIN_BUILD_DIR	:= $(TOOLCHAIN_DIR)

TOOLCHAIN_PRE_DEPS-y	:= ccache_install $(AUTOTOOLS_INSTALL)
TOOLCHAIN_PRE_DEPS-y	+= $(EMBTK_CMAKE_INSTALL)
TOOLCHAIN_PRE_DEPS-y	+= $(if $(CONFIG_EMBTK_TOOLCHAIN_PREDEP_GPERF_HOST),	\
				gperf_host_install)

TOOLCHAIN_DEPS		:= linux_headers_install gmp_host_install
TOOLCHAIN_DEPS		+= mpfr_host_install mpc_host_install binutils_install
TOOLCHAIN_DEPS		+= gcc1_install $(__embtk_toolchain_clib)_headers_install
TOOLCHAIN_DEPS		+= gcc2_install $(__embtk_toolchain_clib)_install gcc3_install

TOOLCHAIN_ADDONS_NAME		:= toolchain-addons
TOOLCHAIN_ADDONS_DEPS		:= $(TOOLCHAIN_ADDONS-y)
TOOLCHAIN_ADDONS_BUILD_DIR	:= $(TOOLCHAIN_BUILD_DIR)/.addons

include $(EMBTK_ROOT)/mk/$(__embtk_toolchain_clib).mk

define __embtk_toolchain_mkinitdirs
	$(__embtk_mk_initsysrootdirs)
	$(__embtk_mk_inittoolsdirs)
	$(__embtk_mk_inithosttoolsdirs)
endef

define __embtk_toolchain_symlinktools
	cd $(TOOLS)/bin;							\
	tools=$$(ls $(STRICT_GNU_TARGET)-*);					\
	toolsnames=$$(echo $$tools | sed 's/$(STRICT_GNU_TARGET)-*//g');	\
	for tool in $$toolsnames; do						\
		ln -sf $(STRICT_GNU_TARGET)-$$tool $(GNU_TARGET)-$$tool;	\
	done
endef

define __embtk_toolchain_compress
	tar -cjf $(TOOLCHAIN_PACKAGE)						\
		$(notdir $(SYSROOT)) $(notdir $(TOOLS)) &&			\
	mv $(TOOLCHAIN_PACKAGE) $(TOOLCHAIN_DIR)/$(TOOLCHAIN_PACKAGE)
endef

define ___embtk_toolchain_decompress
	cd $(EMBTK_ROOT) && tar xjf $(TOOLCHAIN_DIR)/$(TOOLCHAIN_PACKAGE)
	$(__embtk_toolchain_mkinitdirs)
	$(MAKE) $(TOOLCHAIN_PRE_DEPS-y)
	mkdir -p $(GCC3_BUILD_DIR)
	touch $(GCC3_BUILD_DIR)/.installed
	touch $(GCC3_BUILD_DIR)/.gcc3_post_install
	$(MAKE) __embtk_gcc3_printmetakconfigs > 				\
					$(call __embtk_pkg_dotpkgkconfig_f,gcc3)
endef

define __embtk_toolchain_decompress
	$(if $(call __embtk_mk_pathnotexist,$(TOOLCHAIN_DIR)/.decompressed),
		$(call embtk_pinfo,"Decompressing $(GNU_TARGET)/$(EMBTK_MCU_FLAG) toolchain - please wait...")
		$(___embtk_toolchain_decompress)
		touch $(TOOLCHAIN_DIR)/.decompressed)
endef

__embtk_toolchain_addons-y = $(patsubst %_install,%,$(TOOLCHAIN_ADDONS-y))
__embtk_toolchain_addons-n = $(patsubst %_install,%,$(TOOLCHAIN_ADDONS-))
define __embtk_toolchain_build
	$(if $(findstring core,$(1)),
		$(call embtk_pinfo,"Building new $(GNU_TARGET)/$(EMBTK_MCU_FLAG) CORE toolchain - please wait...")
		rm -rf $(TOOLCHAIN_DIR)/.installed
		rm -rf $(TOOLCHAIN_DIR)/.decompressed
		$(foreach dep,$(patsubst %_install,%,$(TOOLCHAIN_DEPS)),
			$(MAKE) $(dep)_clean;)
		$(foreach pkg,$(__embtk_rootfs_pkgs-y),$(MAKE) $(pkg)_clean;)
		rm -rf $(SYSROOT) $(TOOLS)
		$(__embtk_toolchain_mkinitdirs)
		$(MAKE) $(TOOLCHAIN_PRE_DEPS-y) $(TOOLCHAIN_DEPS)
		touch $(TOOLCHAIN_DIR)/.installed)
	$(if $(findstring addons,$(1)),
		$(call embtk_pinfo,"Building new $(GNU_TARGET)/$(EMBTK_MCU_FLAG) toolchain ADDONS - please wait...")
		rm -rf $(TOOLCHAIN_ADDONS_BUILD_DIR)/.installed
		rm -rf $(TOOLCHAIN_DIR)/.decompressed
		$(if $(findstring core,$(1)),,$(___embtk_toolchain_decompress))
		$(if $(findstring core,$(1)),
			$(foreach addon,$(__embtk_toolchain_addons-y),
				$(MAKE) $(addon)_clean;))
		$(if $(TOOLCHAIN_ADDONS-),
			$(foreach addon,$(__embtk_toolchain_addons-n),
				$(MAKE) $(addon)_clean;))
		$(if $(TOOLCHAIN_ADDONS-y),
			$(MAKE) $(TOOLCHAIN_PRE_DEPS-y) $(TOOLCHAIN_ADDONS-y))
		touch $(TOOLCHAIN_ADDONS_BUILD_DIR)/.installed)
	$(if $(findstring core,$(1))$(findstring addons,$(1)),
		$(__embtk_toolchain_symlinktools)
		$(__embtk_toolchain_compress)
		touch $(TOOLCHAIN_DIR)/.decompressed
		$(call embtk_pinfo,"New $(GNU_TARGET)/$(EMBTK_MCU_FLAG) toolchain successfully built!"),
		$(__embtk_toolchain_decompress))
endef

define __embtk_toolchain_core_inst-y
	 $(and $(call __embtk_pkg_installed-y,toolchain),
	 $(call __embtk_mk_pathexist,$(TOOLCHAIN_DIR)/$(TOOLCHAIN_PACKAGE)))
endef
__embtk_toolchain_core_inst = $(if $(strip $(__embtk_toolchain_core_inst-y)),,core)

define __embtk_toolchain_addons_inst-y
	$(and $(call __embtk_pkg_installed-y,toolchain_addons),
	$(call __embtk_mk_pathexist,$(TOOLCHAIN_DIR)/$(TOOLCHAIN_PACKAGE)))
endef
__embtk_toolchain_addons_inst = $(if $(strip $(__embtk_toolchain_addons_inst-y)),,addons)

__embtk_toolchain_buildargs	= $(__embtk_toolchain_core_inst)
__embtk_toolchain_buildargs	+= $(__embtk_toolchain_addons_inst)

buildtoolchain:
	$(Q)$(call __embtk_toolchain_build,$(__embtk_toolchain_buildargs))

define __embtk_toolchain_clean
	rm -rf $(TOOLCHAIN_DIR)/.decompressed
endef

toolchain_clean:
	$(Q)$(__embtk_toolchain_clean)

# Download target for offline build
TOOLCHAIN_ALL_DEPS := $(TOOLCHAIN_PRE_DEPS-y) $(TOOLCHAIN_DEPS)
TOOLCHAIN_ALL_DEPS += $(TOOLCHAIN_ADDONS_DEPS)

packages_fetch:: $(patsubst %_install,download_%,$(TOOLCHAIN_ALL_DEPS))