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#!/bin/bash
#-*- mode: shell-script; -*-
prefix=/usr/local
objdir=$(readlink -f ${objdir:-${PWD}})
builddir=${objdir}/.build
n_cpus=$(grep -c ^processor /proc/cpuinfo)
usage() {
echo "Usage: $0 [<options>]
--help print this message
--prefix=<DIR> set install root dir as <DIR> (default: /usr/local)
Example usage for host compilation:
$ $0 --prefix=./build.host
Example usage for cross compilation:
$ CROSS_COMPILE=arm-linux-gnueabi- ARCH=arm CFLAGS=\"-march=armv7-a\" \\
$0 --prefix=./build.arm
"
exit 1
}
while getopts ":ho:-:p" opt; do
case "$opt" in
-)
# process --long-options
case "$OPTARG" in
help) usage ;;
*=*) opt=${OPTARG%%=*}; val=${OPTARG#*=}
eval "${opt/-/_}='$val'" ;;
*) ;;
esac
;;
*) usage ;;
esac
done
shift $((OPTIND - 1))
mkdir -p ${builddir} && cd ${builddir}
ELFUTILS_VERSION=0.164
ELFUTILS_NAME=elfutils-$ELFUTILS_VERSION
ELFUTILS_TARBALL=$ELFUTILS_NAME.tar.bz2
ELFUTILS_URL=https://sourceware.org/elfutils/ftp/$ELFUTILS_VERSION/$ELFUTILS_TARBALL
if [ ! -d "$ELFUTILS_NAME" ]; then
wget -c $ELFUTILS_URL
tar xvfj $ELFUTILS_TARBALL
ln -sf $ELFUTILS_NAME elfutils
fi
cd elfutils
opt_host_cc=""
if [ ! -z $CROSS_COMPILE ]; then
HOST=$(basename $CROSS_COMPILE | sed 's/-$//g')
opt_host_cc="--host=$HOST CC=${CROSS_COMPILE}gcc"
fi
configure_cmd="./configure --prefix=$prefix $opt_host_cc"
if [ ! -f configure.cmd ] || [ "$configure_cmd" != "$(cat configure.cmd)" ]; then
$configure_cmd && echo "$configure_cmd" > configure.cmd
fi
# build and install libelf first
make -j${n_cpus} -C libelf install
# build and install libdw later on
# libdw requires to build libdwfl, libdwelf, and libebl
make -j${n_cpus} -C libdwfl
make -j${n_cpus} -C libdwelf
make -j${n_cpus} -C libebl CFLAGS="$CFLAGS -Wno-misleading-indentation"
make -j${n_cpus} -C libdw install
cd ..
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