gcc-nuttx-3.x.mk

這是一個實時嵌入式作業系統 實作了MCS51 ARM等MCU

# Makefile for to build a gcc/nuttx toolchain
#
# Copyright (C) 2002-2003 Erik Andersen <[e-mail]>
# Copyright (C) 2004 Manuel Novoa III <[e-mail]>
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

ifeq ($(GCC_SNAP_DATE),)
GCC_OFFICIAL_VER:=$(GCC_VERSION)
GCC_SITE:=http://ftp.gnu.org/gnu/gcc/gcc-$(GCC_VERSION)
#GCC_SITE:=ftp://ftp.ibiblio.org/pub/mirrors/gnu/ftp/gnu/gcc/gcc-$(GCC_OFFICIAL_VER)
else
GCC_OFFICIAL_VER:=$(GCC_VERSION)-$(GCC_SNAP_DATE)
GCC_SITE:=ftp://sources.redhat.com/pub/gcc/snapshots/$(GCC_OFFICIAL_VER)
endif

GCC_SOURCE:=gcc-$(GCC_OFFICIAL_VER).tar.bz2
GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_OFFICIAL_VER)
GCC_CAT:=$(BZCAT)
GCC_STRIP_HOST_BINARIES:=true


ifeq ($(findstring 3.,$(GCC_VERSION)),3.)
GCC_NO_MPFR:=y
endif
ifeq ($(findstring 4.0.,$(GCC_VERSION)),4.0.)
GCC_NO_MPFR:=y
endif
#ifeq ($(findstring 4.1.,$(GCC_VERSION)),4.1.)
#GCC_NO_MPFR:=y
#endif

#############################################################
#
# Setup some initial stuff
#
#############################################################

GCC_TARGET_LANGUAGES:=c

ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),c++
endif

ifeq ($(BR2_INSTALL_LIBGCJ),y)
GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),java
endif

ifeq ($(BR2_INSTALL_OBJC),y)
GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),objc
endif

GCC_TARGET_PREREQ =
GCC_STAGING_PREREQ=

ifndef GCC_NO_MPFR
GCC_WITH_HOST_GMP=--with-gmp=$(GMP_HOST_DIR)
GCC_WITH_HOST_MPFR=--with-mpfr=$(MPFR_HOST_DIR)

ifeq ($(BR2_INSTALL_FORTRAN),y)
GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),fortran
#GCC_TARGET_PREREQ += $(TARGET_DIR)/lib/libmpfr.so $(TARGET_DIR)/lib/libgmp.so
#GCC_STAGING_PREREQ+= $(TOOL_BUILD_DIR)/mpfr/lib/libmpfr.so
GCC_WITH_TARGET_GMP=--with-gmp="$(GMP_TARGET_DIR)"
GCC_WITH_TARGET_MPFR=--with-mpfr="$(MPFR_TARGET_DIR)"
endif
endif # ifndef GCC_NO_MPFR

ifneq ($(BR2_ENABLE_LOCALE),y)
GCC_ENABLE_CLOCALE:=--disable-clocale
endif

#############################################################
#
# second pass compiler build.  Build the compiler targeting
# the newly built shared library.
#
#############################################################
#
# Sigh... I had to rework things because using --with-gxx-include-dir
# causes issues with include dir search order for g++.  This seems to
# have something to do with "path translations" and possibly doesn't
# affect gcc-target.  However, I haven't tested gcc-target yet so no
# guarantees.  mjn3

$(DL_DIR)/$(GCC_SOURCE):
	mkdir -p $(DL_DIR)
	$(WGET) -P $(DL_DIR) $(GCC_SITE)/$(GCC_SOURCE)

gcc-unpacked: $(GCC_DIR)/.unpacked
$(GCC_DIR)/.unpacked: $(DL_DIR)/$(GCC_SOURCE)
	mkdir -p $(TOOL_BUILD_DIR)
	$(GCC_CAT) $(DL_DIR)/$(GCC_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) -
	$(CONFIG_UPDATE) $(GCC_DIR)
	touch $@

gcc-patched: $(GCC_DIR)/.patched
$(GCC_DIR)/.patched: $(GCC_DIR)/.unpacked
	# Apply any files named gcc-*.patch from the source directory to gcc
ifeq ($(GCC_SNAP_DATE),)
	toolchain/patch-kernel.sh $(GCC_DIR) toolchain/gcc/$(GCC_VERSION) \*.patch
else
ifneq ($(wildcard toolchain/gcc/$(GCC_OFFICIAL_VER)),)
	toolchain/patch-kernel.sh $(GCC_DIR) toolchain/gcc/$(GCC_OFFICIAL_VER) \*.patch
else
	toolchain/patch-kernel.sh $(GCC_DIR) toolchain/gcc/$(GCC_VERSION) \*.patch
endif
endif


GCC_BUILD_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-build
$(GCC_BUILD_DIR)/.configured: $(GCC_DIR)/.patched $(GCC_STAGING_PREREQ)
	mkdir -p $(GCC_BUILD_DIR)
	# Important!  Required for limits.h to be fixed.
	ln -snf ../include $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
	(cd $(GCC_BUILD_DIR); PATH=$(TARGET_PATH) \
		CC="$(HOSTCC)" \
		$(GCC_DIR)/configure \
		--prefix=$(STAGING_DIR) \
		--build=$(GNU_HOST_NAME) \
		--host=$(GNU_HOST_NAME) \
		--target=$(REAL_GNU_TARGET_NAME) \
		--enable-languages=$(GCC_TARGET_LANGUAGES) \
		--disable-__cxa_atexit \
		--enable-target-optspace \
		--with-gnu-ld \
		--disable-shared \
		--disable-threads \
		$(GCC_WITH_HOST_GMP) \
		$(GCC_WITH_HOST_MPFR) \
		$(DISABLE_NLS) \
		$(MULTILIB) \
		$(SOFT_FLOAT_CONFIG_OPTION) \
		$(GCC_WITH_CPU) $(GCC_WITH_ARCH) $(GCC_WITH_TUNE) \
		$(GCC_USE_SJLJ_EXCEPTIONS) \
		$(DISABLE_LARGEFILE) \
		$(EXTRA_GCC_CONFIG_OPTIONS));
	touch $@

$(GCC_BUILD_DIR)/.compiled: $(GCC_BUILD_DIR)/.configured
	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR) all
	touch $@

$(GCC_BUILD_DIR)/.installed: $(GCC_BUILD_DIR)/.compiled
	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR) install
	if [ -d "$(STAGING_DIR)/lib64" ] ; then \
		if [ ! -e "$(STAGING_DIR)/lib" ] ; then \
			mkdir "$(STAGING_DIR)/lib" ; \
		fi ; \
		mv "$(STAGING_DIR)/lib64/"* "$(STAGING_DIR)/lib/" ; \
		rmdir "$(STAGING_DIR)/lib64" ; \
	fi
	# Strip the host binaries
ifeq ($(GCC_STRIP_HOST_BINARIES),true)
	-strip --strip-all -R .note -R .comment $(STAGING_DIR)/bin/*
endif
	# Make sure we have 'cc'.
	if [ ! -e $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-cc ] ; then \
		ln -snf $(REAL_GNU_TARGET_NAME)-gcc \
			$(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-cc ; \
	fi;
	if [ ! -e $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/bin/cc ] ; then \
		ln -snf gcc $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/bin/cc ; \
	fi;
	# Set up the symlinks to enable lying about target name.
	set -e; \
	(cd $(STAGING_DIR); \
		if [ "$(REAL_GNU_TARGET_NAME)" != "$(GNU_TARGET_NAME)" ]; then \
			ln -snf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
			cd bin; \
			for app in $(REAL_GNU_TARGET_NAME)-* ; do \
				ln -snf $${app} \
			   	$(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \
			done; \
		fi \
	);
	#
	# Now for the ugly 3.3.x soft float hack...
	#
ifeq ($(BR2_SOFT_FLOAT),y)
ifeq ($(findstring 3.3.,$(GCC_VERSION)),3.3.)
	# Make sure we have a soft float specs file for this arch
	if [ ! -f toolchain/gcc/$(GCC_VERSION)/specs-$(ARCH)-soft-float ] ; then \
		echo soft float configured but no specs file for this arch ; \
		/bin/false ; \
	fi;
	# Replace specs file with one that defaults to soft float mode.
	if [ ! -f $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs ] ; then \
		echo staging dir specs file is missing ; \
		/bin/false ; \
	fi;
	cp toolchain/gcc/$(GCC_VERSION)/specs-$(ARCH)-soft-float $(STAGING_DIR)/lib/gcc-lib/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION)/specs
endif
endif
	#
	# Ok... that's enough of that.
	#
	touch $@

$(GCC_BUILD_DIR)/.libs_installed: $(GCC_BUILD_DIR)/.installed
ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
	-cp -dpf $(STAGING_DIR)/lib/libstdc++.so* $(TARGET_DIR)/lib/
endif
ifeq ($(BR2_INSTALL_LIBGCJ),y)
	-cp -dpf $(STAGING_DIR)/lib/libgcj.so* $(TARGET_DIR)/lib/
	-cp -dpf $(STAGING_DIR)/lib/lib-org-w3c-dom.so* $(TARGET_DIR)/lib/
	-cp -dpf $(STAGING_DIR)/lib/lib-org-xml-sax.so* $(TARGET_DIR)/lib/
	-mkdir -p $(TARGET_DIR)/usr/lib/security
	-cp -dpf $(STAGING_DIR)/usr/lib/security/libgcj.security $(TARGET_DIR)/usr/lib/security/
	-cp -dpf $(STAGING_DIR)/usr/lib/security/classpath.security $(TARGET_DIR)/usr/lib/security/
endif
	touch $@

gcc: binutils $(LIBFLOAT_TARGET) \
	$(GCC_BUILD_DIR)/.installed $(GCC_BUILD_DIR)/.libs_installed \
	$(GCC_TARGETS)

gcc-source: $(DL_DIR)/$(GCC_SOURCE)

gcc-clean:
	rm -rf $(GCC_BUILD_DIR)
	for prog in cpp gcc gcc-[0-9]* protoize unprotoize gcov gccbug cc; do \
	    rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-$$prog \
	    rm -f $(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-$$prog; \
	done

gcc-dirclean: gcc_initial-dirclean
	rm -rf $(GCC_BUILD_DIR)