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#!/bin/sh
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ROOT=`pwd`
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SRCDIR=$ROOT/src
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BUILDDIR=$ROOT/build
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PREFIX=$ROOT/install
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GCC_SRC=gcc-4.5.2.tar.bz2
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GCC_VERSION=4.5.2
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GCC_DIR=gcc-$GCC_VERSION
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BINUTILS_SRC=binutils-2.21.1a.tar.bz2
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BINUTILS_VERSION=2.21.1
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BINUTILS_DIR=binutils-$BINUTILS_VERSION
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NEWLIB_SRC=newlib-1.19.0.tar.gz
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NEWLIB_VERSION=1.19.0
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NEWLIB_DIR=newlib-$NEWLIB_VERSION
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#INSIGHT_SRC=insight-6.8-1.tar.bz2
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#INSIGHT_VERSION=6.8-1
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#INSIGHT_DIR=insight-$INSIGHT_VERSION
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echo "I will build an arm-elf cross-compiler:
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Prefix: $PREFIX
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Sources: $SRCDIR
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Build files: $BUILDDIR
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Press ^C now if you do NOT want to do this."
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read IGNORE
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#
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# Helper functions.
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#
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unpack_source()
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{
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(
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cd $SRCDIR
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ARCHIVE_SUFFIX=${1##*.}
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if [ "$ARCHIVE_SUFFIX" = "gz" ]; then
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tar zxvf $1
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elif [ "$ARCHIVE_SUFFIX" = "bz2" ]; then
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tar jxvf $1
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else
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echo "Unknown archive format for $1"
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exit 1
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fi
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)
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}
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# Create all the directories we need.
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#mkdir -p $SRCDIR $BUILDDIR $PREFIX
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(
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cd $SRCDIR
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# Unpack the sources.
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unpack_source $(basename $GCC_SRC)
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unpack_source $(basename $BINUTILS_SRC)
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unpack_source $(basename $NEWLIB_SRC)
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#unpack_source $(basename $INSIGHT_SRC)
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)
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# Set the PATH to include the binaries we're going to build.
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OLD_PATH=$PATH
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export PATH=$PREFIX/bin:$PATH
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#
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# Stage 1: Build binutils
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#
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(
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(
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# autoconf check.
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cd $SRCDIR/$BINUTILS_DIR
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) || exit 1
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# Now, build it.
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mkdir -p $BUILDDIR/$BINUTILS_DIR
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cd $BUILDDIR/$BINUTILS_DIR
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$SRCDIR/$BINUTILS_DIR/configure --target=arm-elf --prefix=$PREFIX \
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--enable-interwork --enable-threads=posix --enable-multilib --with-float=soft --disable-werror \
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&& make all install
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) || exit 1
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#
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# Stage 2: Patch the GCC multilib rules, then build the gcc compiler only
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#
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(
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MULTILIB_CONFIG=$SRCDIR/$GCC_DIR/gcc/config/arm/t-arm-elf
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echo "
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MULTILIB_OPTIONS += mno-thumb-interwork/mthumb-interwork
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MULTILIB_DIRNAMES += normal interwork
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" >> $MULTILIB_CONFIG
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mkdir -p $BUILDDIR/$GCC_DIR
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cd $BUILDDIR/$GCC_DIR
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$SRCDIR/$GCC_DIR/configure --target=arm-elf --prefix=$PREFIX \
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--enable-interwork --enable-multilib --with-float=soft --disable-werror \
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--enable-languages="c,c++" --with-newlib \
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--with-headers=$SRCDIR/$NEWLIB_DIR/newlib/libc/include \
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--with-system-zlib --disable-shared \
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&& make all-gcc install-gcc
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) || exit 1
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#
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# Stage 3: Build and install newlib
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#
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(
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(
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# Same issue, we have to patch to support makeinfo >= 4.11.
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cd $SRCDIR/$NEWLIB_DIR
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) || exit 1
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# And now we can build it.
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mkdir -p $BUILDDIR/$NEWLIB_DIR
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cd $BUILDDIR/$NEWLIB_DIR
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$SRCDIR/$NEWLIB_DIR/configure --target=arm-elf --prefix=$PREFIX \
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--enable-interwork --enable-multilib --with-float=soft --disable-werror \
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&& make all install
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) || exit 1
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#
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# Stage 4: Build and install the rest of GCC.
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#
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(
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cd $BUILDDIR/$GCC_DIR
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make all install
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) || exit 1
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#
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# Stage 5: Build and install INSIGHT.
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#
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# edit: we currently don't need that for OsmocomBB
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#(
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# Now, build it.
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#mkdir -p $BUILDDIR/$INSIGHT_DIR
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#cd $BUILDDIR/$INSIGHT_DIR
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#$SRCDIR/$INSIGHT_DIR/configure --target=arm-elf --prefix=$PREFIX \
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# --enable-interwork --enable-multilib --with-float=soft --disable-werror \
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# && make all install
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#) || exit 1
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export PATH=$OLD_PATH
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echo "
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Build complete! Add $PREFIX/bin to your PATH to make arm-elf-gcc and friends
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accessible directly.
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"
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