diff -r 9db42913e2ae -r 8508ec77df4c scripts/populate.in --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/scripts/populate.in Thu Jan 29 22:09:55 2009 +0000 @@ -0,0 +1,200 @@ +#!/bin/bash + +# This script will populate the root directory with libs from the sysroot. +# (C) 2007 Yann E. MORIN +# Licensed under the GPL v2 + +# Detect where the toolchain is: +BIN_DIR="$(cd "$(dirname "$0")"; pwd)" +CT_READELF="${BIN_DIR}/@@CT_TARGET@@-readelf" +CT_SYSROOT_DIR="${BIN_DIR}/../@@CT_TARGET@@/sys-root" + +myname=$(basename "$0") + +doHelp() { + cat <<_EOF_ +NAME + $myname - populate the target root file system + +SYNOPSIS + $myname OPTIONS -s source_root -d destination_root + +DESCRIPTION + $myname will 'populate' your target root file system ('src_dir') with + libraries from the toolchain (eg. libc.so...), storing the result into + 'dst_dir'. + +OPTIONS + -s src_dir + use 'src_dir' as the un-populated (source) root directory + + -d dst_dir + use 'dst_dir' as the place to put the populated root directory + + -l name1[:name2[...]] + Always add the specified shared library/ies name1, name2... from the + toolchain (in the sys-root). Actual library names are searched as + follows (where 'name' is replaced with the given name) in the + sys-root directory: + - libname.so + - name.so + - name + If the file is found, then the SONAME of the library is used, and the + library is copied with that name. If the library was not found, this + yields an error (unless -f was given). + + -L file + Read 'file' for a list of shared libraries to always add from the + toolchain. The file should contain one library name per line; text + after a # is ignored until the end of the line; spaces are ignored; + empty lines are ignored. Libraries are searched for as with -l. + + -f force execution: if destination directory already exists, it will be + removed first; if a specified library (above) was not found, continue. + + -v Be verbose + +_EOF_ +} + +CT_ROOT_SRC_DIR= +CT_ROOT_DST_DIR= +CT_LIB_LIST= +CT_LIB_FILE= +CT_FORCE=no +CT_ECHO=true +while getopts ":s:d:l:L:fvh" CT_OPT; do + case "${CT_OPT}" in + s) CT_ROOT_SRC_DIR="${OPTARG}";; + d) CT_ROOT_DST_DIR="${OPTARG}";; + l) CT_LIB_LIST="${CT_LIB_LIST}:${OPTARG}";; + L) CT_LIB_FILE="${OPTARG}";; + f) CT_FORCE=y;; + v) CT_ECHO=echo;; + h) doHelp + exit 0 + ;; + :) echo "$myname: '-${OPTARG}' takes exactly one argument." + exit 1 + ;; + ?) echo "$myname: unknown option '-${OPTARG}'." + exit 1 + ;; + esac +done + +# Sanity checks +if [ -z "${CT_ROOT_SRC_DIR}" -o -z "${CT_ROOT_DST_DIR}" ]; then + doHelp + exit 1 +fi +if [ ! -d "${CT_ROOT_SRC_DIR}" ]; then + echo "$myname: '${CT_ROOT_SRC_DIR}': no such file or directory" + exit 1 +fi +if [ -d "${CT_ROOT_DST_DIR}" -a "${CT_FORCE}" != "y" ]; then + echo "$myname: '${CT_ROOT_DST_DIR}': already exists" + exit 1 +fi +src_inode=$(ls -di "${CT_ROOT_SRC_DIR}") +dst_inode=$(ls -di "${CT_ROOT_DST_DIR}" 2>/dev/null) +if [ "${src_inode}" = "${dst_inode}" ]; then + echo "$myname: source and destination are the same!" + exit 1 +fi + +# Check existence of the forced libraries file +if [ -n "${CT_LIB_FILE}" -a ! \( -f "${CT_LIB_FILE}" -a -r "${CT_LIB_FILE}" \) ]; then + echo "$myname: forced libraries file '${CT_LIB_FILE}' not found!" + exit 1 +fi + +# Get rid of potentially older destination directory +if [ -d "${CT_ROOT_DST_DIR}" ]; then + mv "${CT_ROOT_DST_DIR}" "${CT_ROOT_DST_DIR}.$$" + setsid nohup rm -rf "${CT_ROOT_DST_DIR}.$$" >/dev/null 2>&1 & +fi + +# Create the working copy +mkdir -p "${CT_ROOT_DST_DIR}" + +# Make all path absolute +CT_ROOT_SRC_DIR=$(cd "${CT_ROOT_SRC_DIR}"; pwd) +CT_ROOT_DST_DIR=$(cd "${CT_ROOT_DST_DIR}"; pwd) + +pushd "${CT_ROOT_SRC_DIR}" >/dev/null +tar cf - . |(cd "${CT_ROOT_DST_DIR}"; tar xf -) +popd >/dev/null + +# A function do search for a library +# Usage: do_add_lib libname +# returns: 0 if library was found and added, !0 otherwise +do_add_lib() { + local libname="$1" + local ret=1 + local true_libname + for dir in . usr; do + ${CT_ECHO} -n " trying in '${dir}'" + libfile="${CT_SYSROOT_DIR}/${dir}/lib/${libname}" + ${CT_ECHO} ": '${libfile}'" + if [ -e "${libfile}" ]; then + mkdir -p "${dir}/lib" + true_libname=$("${CT_READELF}" -d "${libfile}" |egrep "SONAME" |sed -r -e 's,.+\[(.+)\] *$,\1,;') + ${CT_ECHO} " installing as '${dir}/lib/${true_libname}'" + cat "${libfile}" >"${dir}/lib/${true_libname}" + ret=0 + break + fi + done + return ${ret} +} + +# First of, copy the forced libraries into the working copy +if [ -n "${CT_LIB_FILE}" ]; then + lib_list=$(sed -r -e ':loop; s/#.*//; s/[[:space:]]+//g; s/([^:])$/\1:/; /$/N; s/\n//; tloop;' "${CT_LIB_FILE}") + CT_LIB_LIST=$(echo "${CT_LIB_LIST}:${lib_list}" |sed -r -e 's/:+/:/g; s/^:+//; s/:+$//;') +fi +CT_LIB_LIST="${CT_LIB_LIST//:/ }" +${CT_ECHO} "Installing forced libraries..." +pushd "${CT_ROOT_DST_DIR}" >/dev/null +for name in ${CT_LIB_LIST}; do + [ -z "${name}" ] && continue + found=0 + for libname in "lib${name}.so" "${name}.so" "${name}"; do + ${CT_ECHO} " searching for '${libname}'" + if do_add_lib "${libname}"; then + found=1 + break + fi + done + if [ ${found} -eq 0 ]; then + echo "$myname: library '${libname}' not found!" + [ "${CT_FORCE}" = y ] || exit 1 + fi +done +popd >/dev/null + +# Parse the working copy for executables and libraries +pushd "${CT_ROOT_DST_DIR}" >/dev/null +still_needed=1 +while [ ${still_needed} -eq 1 ]; do + ${CT_ECHO} "Looping..." + still_needed=0 + for f in $(find . -type f -exec file {} \; |egrep ': ELF [[:digit:]]+-bit .SB (executable|shared object),' |cut -d ":" -f 1); do + ${CT_ECHO} "Scanning '${f}'" + for libname in $("${CT_READELF}" -d "${f}" |egrep '(NEEDED)' |sed -r -e 's,.+\[(.+)\] *$,\1,;'); do + ${CT_ECHO} " searching for '${libname}'" + if [ -e "lib/${libname}" \ + -o -e "usr/lib/${libname}" ]; then + ${CT_ECHO} " already present" + continue + fi + if do_add_lib "${libname}"; then + still_needed=1 + else + echo "$myname: library '${libname}' not found!" + fi + done + done +done +popd >/dev/null