root/trunk/freewrt/target/Makefile

# $FreeWRT$
#-
# This file is part of the FreeWRT project. FreeWRT is copyrighted
# material, please see the LICENCE file in the top-level directory
# or at http://www.freewrt.org/licence for details.

include $(TOPDIR)/rules.mk
include $(TOPDIR)/mk/targets.mk

all: install

$(BIN_DIR):
        mkdir -p $(BIN_DIR)

linux-compile: 
linux-install: $(BIN_DIR)

### Kernel .config Creation
# The following target combines all kernel-related variables and
# config files into a single one to be used as the final kernel
# configuration when building. This is how it's done:
# 1) fetch all FWRT_KPACKAGE_KMOD_* vars into 
#    .fwrtkernelconfig.modules and set them to "m"
# 2) fetch all enabled FWRT_KERNEL_* vars into
#    .fwrtkernelconfig.kernel (no conversion, as they are booleans)
# 3) repeat 2) for the disabled ones and save them into
#    .fwrtkernelconfig.nokernel (for some obscure reason)
# 4) get the board-specific static kernel config and place it into
#    .fwrtkernelconfig.board
# 5) prepare for merging:
#    * if a variable is disabled in .fwrtkernelconfig.board and
#      enabled in either of .fwrtkernelconfig.{modules,kernel},
#      remove it from .fwrtkernelconfig.board
#    * append ${FS_CMDLINE} to the kernel commandline inside
#      .fwrtkernelconfig.board
# 6) merge (cat) .fwrtkernelconfig.board, .fwrtkernelconfig.kernel and
#    .fwrtkernelconfig.modules together into .fwrtkernelconfig.tmp
# 7) check if .fwrtkernelconfig.tmp differs from the current one
#    (.fwrtkernelconfig) at all, overwriting the current one
#    only if it does (so the timestamp stays intact)
# 8) remove the temporary .fwrtkernelconfig.tmp
###
config-prepare: $(TOPDIR)/.config
        sed -n '/^FWRT_KPACKAGE_KMOD/s//CONFIG/p' ${TOPDIR}/.config | \
            sed 's/=y/=m/' >${BUILD_DIR}/.fwrtkernelconfig.modules
        sed -n '/^FWRT_KERNEL/s//CONFIG/p' ${TOPDIR}/.config \
            >${BUILD_DIR}/.fwrtkernelconfig.kernel
        sed -n '/^# FWRT_KERNEL/s//# CONFIG/p' ${TOPDIR}/.config \
            >${BUILD_DIR}/.fwrtkernelconfig.nokernel
        cp linux/${BOARD}-${KERNEL}/kernelconfig \
            ${BUILD_DIR}/.fwrtkernelconfig.board
        (cat ${BUILD_DIR}/.fwrtkernelconfig.{modules,kernel} | \
            while IFS='=' read symbol value; do \
                echo ",g/^# $$symbol/d"; \
        done; \
        echo ',g
^\(CONFIG_CMDLINE="\)\(.*\)"
s

\1\2 ${FS_CMDLINE}"
'; \
        echo wq) | ed -s ${BUILD_DIR}/.fwrtkernelconfig.board
        cd ${BUILD_DIR} && cat .fwrtkernelconfig.board \
            .fwrtkernelconfig.kernel .fwrtkernelconfig.modules \
            >.fwrtkernelconfig.tmp
        cd ${BUILD_DIR} && cmp -s .fwrtkernelconfig.tmp .fwrtkernelconfig || \
            cp .fwrtkernelconfig.tmp .fwrtkernelconfig
        -rm -f ${BUILD_DIR}/.fwrtkernelconfig.tmp

prepare: linux-prepare
compile: linux-compile
ifneq ($(strip ${FWRT_TARGET_NOKERNEL})$(strip ${FWRT_TARGET_ROOTFS_INITRAMFS}),)
install: image_clean linux-noinstall image_install
else
install: image_clean linux-install image_install
endif
clean: linux-clean image_clean

image_clean:
        rm -f $(BIN_DIR)/$(FWRT_PREFIX)-*

image_install:
ifneq ($(strip ${FWRT_TARGET_NOKERNEL}),)
        ${MAKE} -C image/nokernel install-prepare install
else
        $(MAKE) -C image/$(BOARD) install-prepare
        $(MAKE) -C image/$(BOARD) install
endif

%-clean:
        $(TRACE) target/$(patsubst %-clean,%,$@)-clean
        $(MAKE) -C $(patsubst %-clean,%,$@) clean
%-prepare:
        $(TRACE) target/$(patsubst %-prepare,%,$@)-prepare
        $(MAKE) -C $(patsubst %-prepare,%,$@) prepare
%-compile: %-prepare
        $(TRACE) target/$(patsubst %-compile,%,$@)-compile
        $(MAKE) -C $(patsubst %-compile,%,$@) compile
%-install: %-compile
        $(TRACE) target/$(patsubst %-install,%,$@)-install
        $(MAKE) -C $(patsubst %-install,%,$@) install
%-noinstall:
        $(TRACE) target/$(patsubst %-noinstall,%,$@)-noinstall
        $(MAKE) -C $(patsubst %-noinstall,%,$@) noinstall