uclibc.mk

sm86xx rootfs来源包括补丁（ GPL ）的

#############################################################
#
# uClibc (the C library)
#
#############################################################

ifndef $(UCLIBC_CONFIG_FILE)
ifeq ($(BR2_ENABLE_LOCALE),y)
UCLIBC_CONFIG_FILE=toolchain/uClibc/uClibc.config-locale-$(BR2_UCLIBC_VERSION)
else
UCLIBC_CONFIG_FILE=toolchain/uClibc/uClibc.config-$(BR2_UCLIBC_VERSION)
endif
endif

#ifeq ($(BR2_UCLIBC_VERSION_SNAPSHOT),y)
## Be aware that this changes daily....
#UCLIBC_DIR:=$(TOOL_BUILD_DIR)/uClibc
#UCLIBC_SOURCE:=uClibc-$(strip $(subst ",, $(BR2_USE_UCLIBC_SNAPSHOT))).tar.bz2 "))
#UCLIBC_SITE:=http://www.uclibc.org/downloads/snapshots
#else
# Note: 0.9.26 has known problems.  So best use a snapshot until .27 is out.
# Anticipate the change.
VERSION:=$(shell echo $(BR2_UCLIBC_VERSION))
UCLIBC_DIR:=$(TOOL_BUILD_DIR)/uClibc-$(VERSION)
UCLIBC_SOURCE:=uClibc-$(VERSION).tar.bz2
UCLIBC_SITE:=$(DOWNLOAD_SITE)
#endif

UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
		-e 's/i.86/i386/' \
		-e 's/sparc.*/sparc/' \
		-e 's/arm.*/arm/g' \
		-e 's/m68k.*/m68k/' \
		-e 's/ppc/powerpc/g' \
		-e 's/v850.*/v850/g' \
		-e 's/sh64/sh/' \
		-e 's/sh[234].*/sh/' \
		-e 's/mips.*/mips/' \
		-e 's/mipsel.*/mips/' \
		-e 's/cris.*/cris/' \
)


$(DL_DIR)/$(UCLIBC_SOURCE):
	mkdir -p $(DL_DIR)
	$(WGET) -P $(DL_DIR) $(UCLIBC_SITE)/$(UCLIBC_SOURCE)

$(UCLIBC_DIR)/.unpacked: $(DL_DIR)/$(UCLIBC_SOURCE)
	mkdir -p $(TOOL_BUILD_DIR)
	bzcat $(DL_DIR)/$(UCLIBC_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) -
	touch $(UCLIBC_DIR)/.unpacked

UCLIBC_PATCH_LIST := $(wildcard $(BASE_DIR)/toolchain/uClibc/*_$(VERSION)*.patch)

.PHONY: uclibc-echo-patch-list
uclibc-echo-patch-list:
	@echo $(UCLIBC_PATCH_LIST)

$(UCLIBC_DIR)/.patched: $(UCLIBC_DIR)/.unpacked $(UCLIBC_PATCH_LIST)
	toolchain/patch-kernel.sh $(UCLIBC_DIR) toolchain/uClibc \*_$(VERSION)*.patch
	touch $@

.PHONY: uclibc-patched
uclibc-patched: $(UCLIBC_DIR)/.patched

$(UCLIBC_DIR)/.configured: $(UCLIBC_DIR)/.patched $(LINUX_HEADERS_DIR)/.configured
	$(SED) 's,^CROSS=.*,CROSS=$(TARGET_CROSS),g' $(UCLIBC_DIR)/Rules.mak
	cp $(UCLIBC_CONFIG_FILE) $(UCLIBC_DIR)/.config
	$(SED) 's,^.*TARGET_$(UCLIBC_TARGET_ARCH).*,TARGET_$(UCLIBC_TARGET_ARCH)=y,g' \
		$(UCLIBC_DIR)/.config
	$(SED) 's,^TARGET_ARCH.*,TARGET_ARCH=\"$(UCLIBC_TARGET_ARCH)\",g' $(UCLIBC_DIR)/.config
	$(SED) 's,^KERNEL_SOURCE=.*,KERNEL_SOURCE=\"$(LINUX_HEADERS_DIR)\",g' \
		$(UCLIBC_DIR)/.config
	$(SED) 's,^RUNTIME_PREFIX=.*,RUNTIME_PREFIX=\"/\",g' \
		$(UCLIBC_DIR)/.config
	$(SED) 's,^DEVEL_PREFIX=.*,DEVEL_PREFIX=\"/usr/\",g' \
		$(UCLIBC_DIR)/.config
	$(SED) 's,^SHARED_LIB_LOADER_PREFIX=.*,SHARED_LIB_LOADER_PREFIX=\"/lib\",g' \
		$(UCLIBC_DIR)/.config
ifeq ($(BR2_LARGEFILE),y)
	$(SED) 's,^.*UCLIBC_HAS_LFS.*,UCLIBC_HAS_LFS=y,g' $(UCLIBC_DIR)/.config
else
	$(SED) 's,^.*UCLIBC_HAS_LFS.*,UCLIBC_HAS_LFS=n,g' $(UCLIBC_DIR)/.config
endif
	$(SED) 's,.*UCLIBC_HAS_WCHAR.*,UCLIBC_HAS_WCHAR=y,g' $(UCLIBC_DIR)/.config
ifeq ($(BR2_SOFT_FLOAT),y)
	$(SED) 's,.*HAS_FPU.*,HAS_FPU=n\nUCLIBC_HAS_FLOATS=y\nUCLIBC_HAS_SOFT_FLOAT=y,g' $(UCLIBC_DIR)/.config
endif
	mkdir -p $(TOOL_BUILD_DIR)/uClibc_dev/usr/include
	mkdir -p $(TOOL_BUILD_DIR)/uClibc_dev/usr/lib
	mkdir -p $(TOOL_BUILD_DIR)/uClibc_dev/lib
	$(MAKE1) -C $(UCLIBC_DIR) \
		PREFIX=$(TOOL_BUILD_DIR)/uClibc_dev/ \
		DEVEL_PREFIX=/usr/ \
		RUNTIME_PREFIX=$(TOOL_BUILD_DIR)/uClibc_dev/ \
		HOSTCC="$(HOSTCC)" \
		pregen install_dev;
	touch $(UCLIBC_DIR)/.configured

$(UCLIBC_DIR)/lib/libc.a: $(UCLIBC_DIR)/.configured $(LIBFLOAT_TARGET)
	$(MAKE1) -C $(UCLIBC_DIR) \
		PREFIX= \
		DEVEL_PREFIX=/ \
		RUNTIME_PREFIX=/ \
		HOSTCC="$(HOSTCC)" \
		all
	touch -c $(UCLIBC_DIR)/lib/libc.a

#$(STAGING_DIR)/lib/libc.a: $(UCLIBC_DIR)/lib/libc.a
#	$(MAKE1) -C $(UCLIBC_DIR) \
#		PREFIX=$(STAGING_DIR)/ \
#		DEVEL_PREFIX=/ \
#		RUNTIME_PREFIX=/ \
#		install_runtime
#	$(MAKE1) -C $(UCLIBC_DIR) \
#		PREFIX=$(STAGING_DIR)/ \
#		DEVEL_PREFIX=/ \
#		RUNTIME_PREFIX=/ \
#		install_dev
#	# Build the host utils.  Need to add an install target...
#	$(MAKE1) -C $(UCLIBC_DIR)/utils \
#		PREFIX=$(STAGING_DIR) \
#		HOSTCC="$(HOSTCC)" \
#		hostutils
#	touch -c $(STAGING_DIR)/lib/libc.a

ifneq ($(TARGET_DIR),)
#$(TARGET_DIR)/lib/libc.so.0: $(STAGING_DIR)/lib/libc.a
#	$(MAKE1) -C $(UCLIBC_DIR) \
#		PREFIX=$(TARGET_DIR) \
#		DEVEL_PREFIX=/usr/ \
#		RUNTIME_PREFIX=/ \
#		install_runtime
#	touch -c $(TARGET_DIR)/lib/libc.so.0

$(TARGET_DIR)/usr/bin/ldd: $(UCLIBC_DIR)/.configured
	$(MAKE1) -C $(UCLIBC_DIR) $(TARGET_CONFIGURE_OPTS) \
		PREFIX=$(TARGET_DIR) utils install_utils
	touch -c $(TARGET_DIR)/usr/bin/ldd

UCLIBC_TARGETS=$(TARGET_DIR)/lib/libc.so.0

uclibc-target-utils: $(TARGET_DIR)/usr/bin/ldd

TARGETS += uclibc-target-utils
endif

uclibc-configured: $(UCLIBC_DIR)/.configured

#uclibc: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc $(STAGING_DIR)/lib/libc.a \
#	$(UCLIBC_TARGETS)
#
uclibc: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc $(STAGING_DIR)/lib/libc.a 
uclibc-source: $(DL_DIR)/$(UCLIBC_SOURCE)

uclibc-configured-source: uclibc-source

uclibc-clean:
	-$(MAKE1) -C $(UCLIBC_DIR) clean
	rm -f $(UCLIBC_DIR)/.config

uclibc-dirclean:
	rm -rf $(UCLIBC_DIR)


#############################################################
#
# uClibc for the target just needs its header files
# and whatnot installed.
#
#############################################################

ifneq ($(TARGET_DIR),)
$(TARGET_DIR)/usr/lib/libc.a: $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib/libc.a
	$(MAKE1) -C $(UCLIBC_DIR) \
		PREFIX=$(TARGET_DIR) \
		DEVEL_PREFIX=/usr/ \
		RUNTIME_PREFIX=/ \
		install_dev
	touch -c $(TARGET_DIR)/usr/lib/libc.a

uclibc_target: gcc uclibc $(TARGET_DIR)/usr/lib/libc.a $(TARGET_DIR)/usr/bin/ldd

uclibc_target-clean:
	rm -f $(TARGET_DIR)/include

uclibc_target-dirclean:
	rm -f $(TARGET_DIR)/include
endif