busybox.mk

用于生成linux操作系统下的交叉编译工具链和嵌入式linux系统的根文件系统,支持x86、arm、powerpc等处理器

#############################################################
#
# busybox
#
#############################################################

ifeq ($(strip $(BR2_PACKAGE_BUSYBOX_SNAPSHOT)),y)
# Be aware that this changes daily....
BUSYBOX_DIR:=$(BUILD_DIR)/busybox
BUSYBOX_SOURCE:=busybox-snapshot.tar.bz2
BUSYBOX_SITE:=http://www.busybox.net/downloads/snapshots
else
BUSYBOX_VER:=1.00
BUSYBOX_DIR:=$(BUILD_DIR)/busybox-$(BUSYBOX_VER)
BUSYBOX_SOURCE:=busybox-$(BUSYBOX_VER).tar.bz2
BUSYBOX_SITE:=http://www.busybox.net/downloads
endif
BUSYBOX_UNZIP=bzcat
BUSYBOX_CONFIG:=package/busybox/busybox.config

$(DL_DIR)/$(BUSYBOX_SOURCE):
	 $(WGET) -P $(DL_DIR) $(BUSYBOX_SITE)/$(BUSYBOX_SOURCE)

busybox-source: $(DL_DIR)/$(BUSYBOX_SOURCE) $(BUSYBOX_CONFIG)

$(BUSYBOX_DIR)/.unpacked: $(DL_DIR)/$(BUSYBOX_SOURCE)
	$(BUSYBOX_UNZIP) $(DL_DIR)/$(BUSYBOX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
	# Allow busybox patches.
	toolchain/patch-kernel.sh $(BUSYBOX_DIR) package/busybox busybox-\*.patch
	touch $(BUSYBOX_DIR)/.unpacked

$(BUSYBOX_DIR)/.configured: $(BUSYBOX_DIR)/.unpacked $(BUSYBOX_CONFIG)
	cp $(BUSYBOX_CONFIG) $(BUSYBOX_DIR)/.config
	$(SED) "s,^CROSS.*,CROSS=$(TARGET_CROSS)\n\
		PREFIX=$(TARGET_DIR),;" $(BUSYBOX_DIR)/Rules.mak
ifeq ($(BR2_LARGEFILE),y)
	$(SED) "s/^.*CONFIG_LFS.*/CONFIG_LFS=y/;" $(BUSYBOX_DIR)/.config
else
	$(SED) "s/^.*CONFIG_LFS.*/CONFIG_LFS=n/;" $(BUSYBOX_DIR)/.config
	$(SED) "s/^.*FDISK_SUPPORT_LARGE_DISKS.*/FDISK_SUPPORT_LARGE_DISKS=n/;" $(BUSYBOX_DIR)/.config
endif
	$(MAKE) CC=$(TARGET_CC) CROSS="$(TARGET_CROSS)" -C $(BUSYBOX_DIR) oldconfig
	touch $(BUSYBOX_DIR)/.configured

$(BUSYBOX_DIR)/busybox: $(BUSYBOX_DIR)/.configured
	$(MAKE) CC=$(TARGET_CC) CROSS="$(TARGET_CROSS)" PREFIX="$(TARGET_DIR)" \
		EXTRA_CFLAGS="$(TARGET_CFLAGS)" -C $(BUSYBOX_DIR)

$(TARGET_DIR)/bin/busybox: $(BUSYBOX_DIR)/busybox
	$(MAKE) CC=$(TARGET_CC) CROSS="$(TARGET_CROSS)" PREFIX="$(TARGET_DIR)" \
		EXTRA_CFLAGS="$(TARGET_CFLAGS)" -C $(BUSYBOX_DIR) install
	# Just in case
	-chmod a+x $(TARGET_DIR)/usr/share/udhcpc/default.script

busybox: uclibc $(TARGET_DIR)/bin/busybox

busybox-clean:
	rm -f $(TARGET_DIR)/bin/busybox
	-$(MAKE) -C $(BUSYBOX_DIR) clean

busybox-dirclean:
	rm -rf $(BUSYBOX_DIR)