riscv-gnu-toolchain/Makefile.in

INSTALL_DIR := @prefix@
srcdir := $(shell cd @top_srcdir@ && pwd)

PACKAGES := binutils gcc glibc newlib
gcc_version := 4.9.1
binutils_version := 2.24
glibc_version := 2.20
newlib_version := 1.18.0

GNU_MIRROR := ftp://mirrors.kernel.org/gnu
gcc_url := $(GNU_MIRROR)/gcc/gcc-$(gcc_version)/gcc-$(gcc_version).tar.gz
binutils_url := $(GNU_MIRROR)/binutils/binutils-$(binutils_version).tar.gz
glibc_url := $(GNU_MIRROR)/glibc/glibc-$(glibc_version).tar.gz
newlib_url := ftp://sourceware.org/pub/newlib/newlib-$(newlib_version).tar.gz

LINUX_DIR := $(srcdir)/linux-headers/

BASH := /bin/bash
SHELL := $(BASH)

# Check that we have gawk installed.  Set awk=gawk if necessary.
ifeq ($(shell awk --version | grep GNU),)
ifeq ($(shell gawk --version),)
$(error You must have gawk installed on your system!)
else
PATH := $(srcdir)/scripts/gawk:$(PATH)
SHELL := PATH="$(PATH)" $(BASH)
endif
endif

# Check that we have gsed installed.  Set sed=gsed if necessary.
ifeq ($(shell sed --version 2> /dev/null | grep GNU),)
ifeq ($(shell gsed --version),)
$(error You must have gsed installed on your system!)
else
PATH := $(srcdir)/scripts/gsed:$(PATH)
SHELL := PATH="$(PATH)" $(BASH)
endif
endif

newlib: build-gcc-newlib

linux: build-gcc-linux-stage2

$(addprefix src/original-,$(PACKAGES)):
	mkdir -p src
	rm -rf $@ $(subst original-,,$@)-*
	cd src && curl $($(subst src/original-,,$@)_url) | tar zx
	mv $(subst original-,,$@)-$($(subst src/original-,,$@)_version) $@

$(addprefix src/,$(PACKAGES)): src/%: src/original-%
	rm -rf $@ $@.tmp
	cp -r $< $@.tmp
	rsync -a --link-dest=$(srcdir)/$(shell basename $@) $(srcdir)/$(shell basename $@)/ $@.tmp
	cd $@.tmp && patch -p1 < $(srcdir)/patches/$(shell basename $@)
	mv $@.tmp $@

.PHONY: patches $(addprefix $(srcdir)/patches/,$(PACKAGES))
$(addprefix $(srcdir)/patches/,$(PACKAGES)): $(srcdir)/patches/%: src/%
	-cd src/$(shell basename $@) && rm `cd $(srcdir)/$(shell basename $@) && find . -type f`
	-cd src && diff --exclude=manual --exclude=autom4te.cache -rupN original-$(shell basename $@) $(shell basename $@) | filterdiff --remove-timestamps > $@
	rsync -a --link-dest=$(srcdir)/$(shell basename $@) $(srcdir)/$(shell basename $@)/ $<

patches: $(addprefix $(srcdir)/patches/,$(PACKAGES))

build-binutils-linux: src/binutils
	rm -rf $@
	mkdir $@
	cd $@ && \
	CFLAGS+=-Wno-error=deprecated-declarations \
	$(shell pwd)/$</configure \
		--target=riscv64-unknown-linux-gnu \
		--prefix=$(INSTALL_DIR) \
		--enable-tls \
		--disable-multilib
	$(MAKE) -C $@
	$(MAKE) -C $@ install

build-glibc-linux: src/glibc build-gcc-linux-stage1
	rm -rf $@
	mkdir $@
	cd $@ && CC= $(shell pwd)/$</configure \
		--host=riscv64-unknown-linux-gnu \
		--prefix=$(INSTALL_DIR)/riscv64-unknown-linux-gnu \
		libc_cv_forced_unwind=yes \
		libc_cv_c_cleanup=yes \
		--enable-shared \
		--enable-__thread \
		--disable-multilib \
		--with-headers=$(LINUX_DIR)/include
	$(MAKE) -C $@
	$(MAKE) -C $@ install

build-gcc-linux-stage1: src/gcc build-binutils-linux
	rm -rf $@
	mkdir $@
	cd $@ && $(shell pwd)/$</configure \
		--target=riscv64-unknown-linux-gnu \
		--prefix=$(INSTALL_DIR) \
		--enable-shared \
		--disable-threads \
		--enable-tls \
		--enable-languages=c \
		--disable-libatomic \
		--disable-libmudflap \
		--disable-libssp \
		--disable-libquadmath \
		--disable-libgomp \
		--disable-nls \
		--disable-multilib \
		--disable-bootstrap
	-$(MAKE) -C $@ inhibit-libc=true
	$(MAKE) -C $@ install

build-gcc-linux-stage2: src/gcc build-glibc-linux
	rm -rf $@
	mkdir $@
	cd $@ && $(shell pwd)/$</configure \
		--target=riscv64-unknown-linux-gnu \
		--prefix=$(INSTALL_DIR) \
		--enable-shared \
		--enable-tls \
		--enable-languages=c,c++ \
		--disable-libmudflap \
		--disable-libssp \
		--disable-libquadmath \
		--disable-nls \
		--disable-multilib \
		--disable-bootstrap \
		--with-headers=$(LINUX_DIR)/include
	$(MAKE) -C $@
	$(MAKE) -C $@ install

build-binutils-newlib: src/binutils
	rm -rf $@
	mkdir $@
	cd $@ && \
	CFLAGS+=-Wno-error=deprecated-declarations \
	$(shell pwd)/$</configure \
		--target=riscv64-unknown-elf \
		--prefix=$(INSTALL_DIR) \
		--enable-tls
	$(MAKE) -C $@
	$(MAKE) -C $@ install

src/newlib-gcc: src/gcc src/newlib
	rm -rf $@
	rsync -a --link-dest=$(shell pwd)/src/gcc $(shell pwd)/src/gcc/* $@
	rsync -a --link-dest=$(shell pwd)/src/newlib/newlib $(shell pwd)/src/newlib/newlib $@
	rsync -a --link-dest=$(shell pwd)/src/newlib/libgloss $(shell pwd)/src/newlib/libgloss $@

build-gcc-newlib: src/newlib-gcc build-binutils-newlib
	rm -rf $@
	mkdir $@
	cd $@ && $(shell pwd)/$</configure \
		--target=riscv64-unknown-elf \
		--prefix=$(INSTALL_DIR) \
		--disable-shared \
		--disable-threads \
		--enable-tls \
		--enable-languages=c,c++ \
		--with-newlib \
		--disable-libmudflap \
		--disable-libssp \
		--disable-libquadmath \
		--disable-libgomp \
		--disable-nls
	$(MAKE) -C $@ inhibit-libc=true
	$(MAKE) -C $@ install

clean:
	rm -rf build-* $(addprefix src/,$(PACKAGES))

distclean:
	rm -rf build-* src

# All of the packages install themselves, so our install target does nothing.
install: