scripts/bundle-libraries.sh

   1 #!/usr/bin/env bash
   2 #
   3 #   Script to install host system binaries along with required libraries.
   4 #   Refer to the --help output for more information.
   5 #
   6 #   Copyright (C) 2012 Jo-Philipp Wich <jow@openwrt.org>
   7 #
   8 #   This program is free software; you can redistribute it and/or modify
   9 #   it under the terms of the GNU General Public License as published by
  10 #   the Free Software Foundation; either version 2 of the License, or
  11 #   (at your option) any later version.
  12 #
  13 #   This program is distributed in the hope that it will be useful,
  14 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #   GNU General Public License for more details.
  17 #
  18 #   You should have received a copy of the GNU General Public License
  19 #   along with this program; if not, write to the Free Software
  20 #   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21
  22 DIR="$1"; shift
  23
  24 _cp() {
  25         cp ${VERBOSE:+-v} -L "$1" "$2" || {
  26                 echo "cp($1 $2) failed" >&2
  27                 exit 1
  28         }
  29 }
  30
  31 _md() {
  32         mkdir ${VERBOSE:+-v} -p "$1" || {
  33                 echo "mkdir($1) failed" >&2
  34                 exit 2
  35         }
  36 }
  37
  38 _ln() {
  39         ln ${VERBOSE:+-v} -sf "$1" "$2" || {
  40                 echo "ln($1 $2) failed" >&2
  41                 exit 3
  42         }
  43 }
  44
  45 for LDD in ${PATH//://ldd }/ldd; do
  46         "$LDD" --version >/dev/null 2>/dev/null && break
  47         LDD=""
  48 done
  49
  50 [ -n "$LDD" -a -x "$LDD" ] || {
  51         echo "Unable to find working ldd" >&2
  52         exit 4
  53 }
  54
  55 for BIN in "$@"; do
  56         [ -n "$BIN" -a -x "$BIN" -a -n "$DIR" ] || {
  57                 echo "Usage: $0 <destdir> <executable> ..." >&2
  58                 exit 1
  59         }
  60
  61         [ ! -d "$DIR/bundled/lib" ] && {
  62                 _md "$DIR/bundled/lib"
  63                 _md "$DIR/bundled/usr"
  64                 _ln "../lib" "$DIR/bundled/usr/lib"
  65         }
  66
  67         LDSO=""
  68
  69         echo "Bundling ${BIN##*/}"
  70         for token in $("$LDD" "$BIN" 2>/dev/null); do
  71                 case "$token" in */*.so*)
  72                         case "$token" in
  73                                 *ld-*.so*) LDSO="${token##*/}" ;;
  74                                 *) echo " * lib: ${token##*/}" ;;
  75                         esac
  76
  77                         dest="$DIR/bundled/lib/${token##*/}"
  78                         ddir="${dest%/*}"
  79
  80                         [ -f "$token" -a ! -f "$dest" ] && {
  81                                 _md "$ddir"
  82                                 _cp "$token" "$dest"
  83                         }
  84                 ;; esac
  85         done
  86
  87         _md "$DIR"
  88
  89         # is a dynamically linked executable
  90         if [ -n "$LDSO" ]; then
  91                 _cp "$BIN" "$DIR/bundled/${BIN##*/}"
  92
  93                 [ -x "$DIR/bundled/run.sh" ] || {
  94                         cat <<-EOF > "$DIR/bundled/run.sh"
  95                                 #!/usr/bin/env bash
  96                                 dir="\$(dirname "\$0")"
  97                                 bin="\$(basename "\$0")"
  98                                 exec -a "\$0" "\$dir/bundled/lib/$LDSO" --library-path "\$dir/bundled/lib" "\$dir/bundled/\$bin" "\$@"
  99                         EOF
 100                         chmod ${VERBOSE:+-v} 0755 "$DIR/bundled/run.sh"
 101                 }
 102
 103                 _ln "./bundled/run.sh" "$DIR/${BIN##*/}"
 104
 105         # is a static executable or non-elf binary
 106         else
 107                 echo " * not dynamically linked"
 108                 _cp "$BIN" "$DIR/${BIN##*/}"
 109         fi
 110 done