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#################################################################################
# Embtoolkit
# Copyright(C) 2009-2014 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 linux.mk
# \brief linux.mk of Embtoolkit
# \author Abdoulaye Walsimou GAYE <awg@embtoolkit.org>
# \date May 2009
################################################################################
__LINUX_SITE_BASE = http://ftp.kernel.org/pub/linux/kernel
__LINUX_SITE_LONGTERM = $(strip $(if $(LINUX_LONGTERMV), \
/longterm/$(LINUX_LONGTERMV)))
__LINUX_SITE = $(strip $(if $(CONFIG_EMBTK_LINUX_HAVE_MIRROR), \
$(patsubst '"',,$(strip $(CONFIG_EMBTK_LINUX_HAVE_MIRROR_SITE))), \
$(__LINUX_SITE_BASE)/$(LINUX_MAJORV)$(__LINUX_SITE_LONGTERM)))
LINUX_NAME := linux
LINUX_MAJORV := $(call embtk_get_pkgversion,linux_major)
LINUX_LONGTERMV := $(call embtk_get_pkgversion,linux_longterm)
LINUX_VERSION := $(call embtk_get_pkgversion,linux)
LINUX_SITE := $(call __LINUX_SITE)
LINUX_PACKAGE := linux-$(LINUX_VERSION).tar.bz2
LINUX_SRC_DIR := $(embtk_toolsb)/linux-$(LINUX_VERSION)
LINUX_BUILD_DIR := $(embtk_toolsb)/linux-$(LINUX_VERSION)
LINUX_KEEP_SRC_DIR := $(CONFIG_EMBTK_BUILD_LINUX_KERNEL)
LINUX_HEADERS_NAME := linux_headers
LINUX_HEADERS_VERSION := $(LINUX_VERSION)
LINUX_HEADERS_SITE := $(LINUX_SITE)
LINUX_HEADERS_PACKAGE := $(LINUX_PACKAGE)
LINUX_HEADERS_SRC_DIR := $(LINUX_SRC_DIR)
LINUX_HEADERS_BUILD_DIR := $(LINUX_BUILD_DIR)
LINUX_HEADERS_KCONFIGS_NAME := LINUX
LINUX_HEADERS_KEEP_SRC_DIR := y
LINUX_MAKE_OPTS := quiet=quiet_
LINUX_MAKE_OPTS += ARCH=$(LINUX_ARCH)
LINUX_MAKE_OPTS += CROSS_COMPILE=$(CROSS_COMPILE_CACHED)
define __embtk_install_linux_headers
$(call embtk_pinfo,"Installing linux-$(LINUX_VERSION) headers...")
$(call embtk_download_pkg,linux)
$(call embtk_decompress_pkg,linux)
$(MAKE) -C $(LINUX_BUILD_DIR) $(LINUX_MAKE_OPTS) \
INSTALL_HDR_PATH=$(embtk_sysroot)/usr headers_install
$(call __embtk_setinstalled_pkg,linux_headers)
$(call __embtk_pkg_gen_dotkconfig_f,linux_headers)
endef
define embtk_install_linux_headers
$(if $(call __embtk_pkg_installed-y,linux_headers),,
$(__embtk_install_linux_headers))
endef
#
# linux install macros
#
__embtk_linux_dotconfig_f := $(call __embtk_mk_uquote,$(CONFIG_EMBTK_LINUX_DOTCONFIG))
__embtk_linux_srcdir := $(call __embtk_mk_uquote,$(or $(CONFIG_EMBTK_LINUX_BUILD_EXTSRC),$(LINUX_SRC_DIR)))
__embtk_linux_support_modules := $(shell grep MODULES=y "$(__embtk_linux_dotconfig_f)" 2>/dev/null)
define __embtk_install_linux_check_config
if [ "x" = "x$(__embtk_linux_dotconfig_f)" ]; then \
$(call embtk_perror,"Unable to build linux kernel image: no config file");\
exit 1; \
fi
if [ ! -e $(__embtk_linux_dotconfig_f) ]; then \
$(call embtk_perror,"Unable to build linux kernel image: config file $(__embtk_linux_dotconfig_f) not found");\
exit 1; \
fi
endef
define __embtk_install_linux_check_extsrc
if [ "x" = "x$(__embtk_linux_srcdir)" ]; then \
$(call embtk_perror,"Unable to build linux kernel image: External source tree not specified");\
exit 1; \
fi
if [ ! -d $(__embtk_linux_srcdir) ]; then \
$(call embtk_perror,"Unable to build linux kernel image: External source tree $(__embtk_linux_srcdir) not found");\
exit 1; \
fi
endef
define __embtk_install_linux
$(call embtk_pinfo,"Generating linux kernel image...")
$(__embtk_install_linux_check_config)
$(if $(CONFIG_EMBTK_LINUX_BUILD_USE_EXTSRC),
$(__embtk_install_linux_check_extsrc))
$(if $(CONFIG_EMBTK_LINUX_BUILD_TOOLCHAIN_SRC),
$(call embtk_download_pkg,linux)
$(call embtk_decompress_pkg,linux))
$(MAKE) -C $(__embtk_linux_srcdir) $(LINUX_MAKE_OPTS) distclean
cp $(CONFIG_EMBTK_LINUX_DOTCONFIG) $(__embtk_linux_srcdir)/.config
$(MAKE) -C $(__embtk_linux_srcdir) $(LINUX_MAKE_OPTS) silentoldconfig
$(MAKE) -C $(__embtk_linux_srcdir) $(LINUX_MAKE_OPTS) $(J)
$(call __embtk_setinstalled_pkg,linux)
$(call __embtk_pkg_gen_dotkconfig_f,linux)
endef
define embtk_install_linux
$(if $(call __embtk_pkg_installed-y,linux),true,$(__embtk_install_linux))
$(if $(__embtk_linux_support_modules),$(embtk_postinstall_linux))
endef
define embtk_postinstall_linux
$(call embtk_pinfo,"Install linux kernel modules...")
$(MAKE) -C $(__embtk_linux_srcdir) $(LINUX_MAKE_OPTS) \
INSTALL_MOD_PATH=$(embtk_rootfs) modules_install
endef
#
# clean target and macros
#
define embtk_cleanup_linux
[ -d $(LINUX_BUILD_DIR) ] && $(call __embtk_unsetinstalled_pkg,linux) ||:
endef
define embtk_cleanup_linux_headers
[ -d $(LINUX_BUILD_DIR) ] && $(call __embtk_unsetinstalled_pkg,linux_headers) ||:
endef
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