gcc toolchain cretion script for pic32

build-pic32-gcc.sh

#!/bin/bash

set -e

#
# Path definitions
#
TOOLCHAIN_ROOT_DIR="${PWD}/$(dirname $0)"
TOOLCHAIN_DL_DIR="${TOOLCHAIN_ROOT_DIR}/dl"
TOOLCHAIN_OUT_DIR="${TOOLCHAIN_ROOT_DIR}/output"
TOOLCHAIN_BUILD_DIR="${TOOLCHAIN_OUT_DIR}/build"
TOOLCHAIN_INSTALL_DIR="${TOOLCHAIN_OUT_DIR}/install"

function die()
{
	echo "$@"
	exit 1
}

function download()
{
	mkdir -p "${TOOLCHAIN_DL_DIR}" || die "mkdir failed"
	( cd "${TOOLCHAIN_DL_DIR}" && wget -c "$1" ) || die "download failed"
}

function downloadGit()
{
	URL=$1
	REV=$2
	PKG=$3

	mkdir -p "${TOOLCHAIN_DL_DIR}/${PKG}-${REV}" || die "mkdir failed"
	git init "${TOOLCHAIN_DL_DIR}/${PKG}-${REV}" || die "git init failed"

	(
		set -e

		cd "${TOOLCHAIN_DL_DIR}/${PKG}-${REV}"

		git remote add origin "$URL"
		git fetch origin "$REV"
		git reset --hard FETCH_HEAD
	) || die "download failed"

	tar -C "${TOOLCHAIN_DL_DIR}" -czf "${TOOLCHAIN_DL_DIR}/${PKG}-${REV}.tar.gz" "${PKG}-${REV}"
}

function extract()
{
	mkdir -p "${TOOLCHAIN_BUILD_DIR}" || die "mkdir failed"
	tar -C "${TOOLCHAIN_BUILD_DIR}" -xf "${TOOLCHAIN_DL_DIR}/$1" || die "extract failed"
}

#
# package versions
#
BINUTILS_VERSION=2.24
MPFR_VERSION=3.1.2
GMP_VERSION=5.1.3
MPC_VERSION=1.0.1
GCC_VERSION=4.8.1
NEWLIB_VERSION=2.1.0
PIC32_PART_VERSION=master

#
# build variables
#
TARGET=mips-elf
PREFIX=/usr/local
MAKEFLAGS="-j 6"

export PATH="${TOOLCHAIN_INSTALL_DIR}/${PREFIX}/bin:$PATH"

#
# download stuff
#
download "http://ftp.gnu.org/gnu/binutils/binutils-${BINUTILS_VERSION}.tar.gz"
download "http://ftp.gnu.org/gnu/mpfr/mpfr-${MPFR_VERSION}.tar.gz"
download "http://ftp.gnu.org/gnu/gmp/gmp-${GMP_VERSION}.tar.gz"
download "http://ftp.gnu.org/gnu/mpc/mpc-${MPC_VERSION}.tar.gz"
download "http://ftp.gnu.org/gnu/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.gz"
download "ftp://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
downloadGit "https://github.com/jasonkajita/pic32-part-support.git" "${PIC32_PART_VERSION}" "pic32_part_support"

#
# extract stuff
#
extract "binutils-${BINUTILS_VERSION}.tar.gz"
extract "gcc-${GCC_VERSION}.tar.gz"
extract "mpfr-${MPFR_VERSION}.tar.gz"
extract "gmp-${GMP_VERSION}.tar.gz"
extract "mpc-${MPC_VERSION}.tar.gz"
extract "newlib-${NEWLIB_VERSION}.tar.gz"
extract "pic32_part_support-${PIC32_PART_VERSION}.tar.gz"

#
# build binutils
#
(
	set -e

	cd "${TOOLCHAIN_BUILD_DIR}/binutils-${BINUTILS_VERSION}"

	mkdir build
	cd build

	../configure --disable-werror --target=$TARGET --prefix=$PREFIX
	make all $MAKEFLAGS
	make install DESTDIR="${TOOLCHAIN_INSTALL_DIR}"
) || die "binutils build failed"

#
# build gcc and newlib
#
(
	set -e
	cd "${TOOLCHAIN_BUILD_DIR}/gcc-${GCC_VERSION}"

	#
	# symlink dependent libs
	#
	ln -sf "${TOOLCHAIN_BUILD_DIR}/mpfr-${MPFR_VERSION}" mpfr
	ln -sf "${TOOLCHAIN_BUILD_DIR}/mpfr-${GMP_VERSION}" gmp
	ln -sf "${TOOLCHAIN_BUILD_DIR}/mpc-${MPC_VERSION}" mpc
	ln -sf "${TOOLCHAIN_BUILD_DIR}/newlib-${NEWLIB_VERSION}/newlib" newlib

	mkdir build
	cd build
	
	../configure --target=$TARGET --prefix=$PREFIX  \
	             --enable-languages=c,c++ \
	             --with-arch-32=mips32r2 \
	             --enable-lto \
	             --disable-nls \
	             --disable-shared \
	             --disable-libstdc___v3 \
	             --disable-decimal-float \
	             --disable-threads \
	             --disable-libmudflap \
	             --disable-libssp \
	             --disable-libgomp \
	             --disable-libquadmath \
	             --with-newlib --with-headers=newlib/libc/include \
	             --disable-newlib-supplied-syscalls \
	             --disable-libgloss

	make all $MAKEFLAGS
	make install DESTDIR="${TOOLCHAIN_INSTALL_DIR}"
) || die "gcc and newlib build failed"