1#!/bin/bash 2 3set -e 4 5TARGET=nios2-linux-gnu 6LINUX_ARCH=nios2 7 8J=$(expr $(nproc) / 2) 9TOOLCHAIN_INSTALL=/usr/local 10TOOLCHAIN_BIN=${TOOLCHAIN_INSTALL}/bin 11CROSS_SYSROOT=${TOOLCHAIN_INSTALL}/$TARGET/sys-root 12 13export PATH=${TOOLCHAIN_BIN}:$PATH 14 15# 16# Grab all of the source for the toolchain bootstrap. 17# 18 19wget https://ftp.gnu.org/gnu/binutils/binutils-2.37.tar.xz 20wget https://ftp.gnu.org/gnu/gcc/gcc-11.2.0/gcc-11.2.0.tar.xz 21wget https://ftp.gnu.org/gnu/glibc/glibc-2.34.tar.xz 22wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.70.tar.xz 23 24tar axf binutils-2.37.tar.xz 25tar axf gcc-11.2.0.tar.xz 26tar axf glibc-2.34.tar.xz 27tar axf linux-5.10.70.tar.xz 28 29mv binutils-2.37 src-binu 30mv gcc-11.2.0 src-gcc 31mv glibc-2.34 src-glibc 32mv linux-5.10.70 src-linux 33 34mkdir -p bld-hdr bld-binu bld-gcc bld-glibc 35mkdir -p ${CROSS_SYSROOT}/usr/include 36 37# 38# Install kernel and glibc headers 39# 40 41cd src-linux 42make headers_install ARCH=${LINUX_ARCH} INSTALL_HDR_PATH=${CROSS_SYSROOT}/usr 43cd .. 44 45cd bld-hdr 46../src-glibc/configure --prefix=/usr --host=${TARGET} 47make install-headers DESTDIR=${CROSS_SYSROOT} 48touch ${CROSS_SYSROOT}/usr/include/gnu/stubs.h 49cd .. 50 51# 52# Build binutils 53# 54 55cd bld-binu 56../src-binu/configure --disable-werror \ 57 --prefix=${TOOLCHAIN_INSTALL} --with-sysroot --target=${TARGET} 58make -j${J} 59make install 60cd .. 61 62# 63# Build gcc, without shared libraries, because we do not yet 64# have a shared libc against which to link. 65# 66 67cd bld-gcc 68../src-gcc/configure --disable-werror --disable-shared \ 69 --prefix=${TOOLCHAIN_INSTALL} --with-sysroot --target=${TARGET} \ 70 --enable-languages=c --disable-libssp --disable-libsanitizer \ 71 --disable-libatomic --disable-libgomp --disable-libquadmath 72make -j${J} 73make install 74cd .. 75 76# 77# Build glibc 78# There are a few random things that use c++ but we didn't build that 79# cross-compiler. We can get away without them. Disable CXX so that 80# glibc doesn't try to use the host c++ compiler. 81# 82 83cd bld-glibc 84CXX=false ../src-glibc/configure --prefix=/usr --host=${TARGET} 85make -j${j} 86make install DESTDIR=${CROSS_SYSROOT} 87cd .. 88