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https://github.com/crosstool-ng/crosstool-ng.git
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120 lines
3.5 KiB
Bash
120 lines
3.5 KiB
Bash
#!/bin/bash
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# This script will populate the root directory with libs from the sysroot.
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# (C) 2007 Yann E. MORIN
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# Licensed under the GPL v2
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CT_READELF="@@CT_READELF@@"
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CT_SYSROOT_DIR="@@CT_SYSROOT_DIR@@"
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myname=$(basename "$0")
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doHelp() {
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cat <<_EOF_
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$myname [-f] [-v] -s source_root -d destination_root
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-s dir
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use 'dir' as the un-populated (source) root directory
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-d dir
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use 'dir' as the place to put the populated root directory
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-f force execution: if destination directory already exists,
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it will be removed first.
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-v Be verbose
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_EOF_
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}
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CT_ROOT_SRC_DIR=
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CT_ROOT_DST_DIR=
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CT_FORCE=no
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CT_ECHO=true
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while getopts ":s:d:fvh" CT_OPT; do
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case "${CT_OPT}" in
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s) CT_ROOT_SRC_DIR="${OPTARG}";;
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d) CT_ROOT_DST_DIR="${OPTARG}";;
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f) CT_FORCE=y;;
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v) CT_ECHO=echo;;
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h) doHelp
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exit 0
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;;
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:) echo "$myname: \"-${OPTARG}\" takes exactly one argument."
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exit 1
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;;
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?) echo "$myname: unknown option \"-${OPTARG}\"."
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exit 1
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;;
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esac
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done
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# Sanity checks
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if [ -z "${CT_ROOT_SRC_DIR}" -o -z "${CT_ROOT_DST_DIR}" ]; then
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doHelp
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exit 1
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fi
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if [ ! -d "${CT_ROOT_SRC_DIR}" ]; then
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echo "$myname: \"${CT_ROOT_SRC_DIR}\": no such file or directory"
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exit 1
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fi
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if [ -d "${CT_ROOT_DST_DIR}" -a "${CT_FORCE}" != "y" ]; then
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echo "$myname: \"${CT_ROOT_DST_DIR}\": already exists"
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exit 1
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fi
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src_inode=$(ls -di "${CT_ROOT_SRC_DIR}")
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dst_inode=$(ls -di "${CT_ROOT_DST_DIR}" 2>/dev/null)
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if [ "${src_inode}" = "${dst_inode}" ]; then
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echo "$myname: source and destination are the same!"
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exit 1
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fi
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# Get rid of potentially older destination directory
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if [ -d "${CT_ROOT_DST_DIR}" ]; then
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mv "${CT_ROOT_DST_DIR}" "${CT_ROOT_DST_DIR}.$$"
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nohup rm -rf "${CT_ROOT_DST_DIR}.$$" >/dev/null 2>&1 &
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fi
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# Create the working copy
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mkdir -p "${CT_ROOT_DST_DIR}"
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# Make all path absolute
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CT_ROOT_SRC_DIR=$(cd "${CT_ROOT_SRC_DIR}"; pwd)
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CT_ROOT_DST_DIR=$(cd "${CT_ROOT_DST_DIR}"; pwd)
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cd "${CT_ROOT_SRC_DIR}"
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tar cf - . |(cd "${CT_ROOT_DST_DIR}"; tar xf -)
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# Parse the working copy for executables and libraries
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cd "${CT_ROOT_DST_DIR}"
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still_needed=1
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while [ ${still_needed} -eq 1 ]; do
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${CT_ECHO} "Looping..."
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still_needed=0
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for f in $(find . -type f -exec file {} \; |egrep ': ELF [[:digit:]]+-bit .SB (executable|shared object),' |cut -d ":" -f 1); do
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${CT_ECHO} "Scanning \"${f}\""
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for libname in $("${CT_READELF}" -d "${f}" |egrep '(NEEDED)' |sed -r -e 's,.+\[(.+)\] *$,\1,;'); do
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${CT_ECHO} " searching for \"${libname}\""
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if [ -e "lib/${libname}" \
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-o -e "usr/lib/${libname}" ]; then
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${CT_ECHO} " already present"
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continue
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fi
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# Need to scan .. for libgcc_s et al.
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for dir in . usr ..; do
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${CT_ECHO} -n " trying in \"${dir}\""
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tgt_dir="${dir}"
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[ "${tgt_dir}" = ".." ] && tgt_dir="usr"
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libfile="${CT_SYSROOT_DIR}/${dir}/lib/${libname}"
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${CT_ECHO} ": \"${libfile}\""
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if [ -e "${libfile}" ]; then
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mkdir -p "${dir}/lib"
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${CT_ECHO} " installing \"${tgt_dir}/lib/${libname}\""
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cp "${libfile}" "${tgt_dir}/lib/${libname}"
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still_needed=1
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break
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fi
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done
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done
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done
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done
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