scripts/bundle-libraries.sh

   1 #!/usr/bin/env bash
   2 #
   3 #   Script to install host system binaries along with required libraries.
   4 #
   5 #   Copyright (C) 2012-2013 Jo-Philipp Wich <jow@openwrt.org>
   6 #
   7 #   This program is free software; you can redistribute it and/or modify
   8 #   it under the terms of the GNU General Public License as published by
   9 #   the Free Software Foundation; either version 2 of the License, or
  10 #   (at your option) any later version.
  11 #
  12 #   This program is distributed in the hope that it will be useful,
  13 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #   GNU General Public License for more details.
  16 #
  17 #   You should have received a copy of the GNU General Public License
  18 #   along with this program; if not, write to the Free Software
  19 #   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20
  21 DIR="$1"; shift
  22
  23 _cp() {
  24         cp ${VERBOSE:+-v} -L "$1" "$2" || {
  25                 echo "cp($1 $2) failed" >&2
  26                 exit 1
  27         }
  28 }
  29
  30 _md() {
  31         mkdir ${VERBOSE:+-v} -p "$1" || {
  32                 echo "mkdir($1) failed" >&2
  33                 exit 2
  34         }
  35 }
  36
  37 _ln() {
  38         ln ${VERBOSE:+-v} -sf "$1" "$2" || {
  39                 echo "ln($1 $2) failed" >&2
  40                 exit 3
  41         }
  42 }
  43
  44 for LDD in ${PATH//://ldd }/ldd; do
  45         "$LDD" --version >/dev/null 2>/dev/null && break
  46         LDD=""
  47 done
  48
  49 [ -n "$LDD" -a -x "$LDD" ] || {
  50         echo "Unable to find working ldd" >&2
  51         exit 4
  52 }
  53
  54 for BIN in "$@"; do
  55         [ -n "$BIN" -a -x "$BIN" -a -n "$DIR" ] || {
  56                 echo "Usage: $0 <destdir> <executable> ..." >&2
  57                 exit 1
  58         }
  59
  60         [ ! -d "$DIR/bundled/lib" ] && {
  61                 _md "$DIR/bundled/lib"
  62                 _md "$DIR/bundled/usr"
  63                 _ln "../lib" "$DIR/bundled/usr/lib"
  64         }
  65
  66         LDSO=""
  67
  68         echo "Bundling ${BIN##*/}"
  69         for token in $("$LDD" "$BIN" 2>/dev/null); do
  70                 case "$token" in */*.so*)
  71                         case "$token" in
  72                                 *ld-*.so*) LDSO="${token##*/}" ;;
  73                                 *) echo " * lib: ${token##*/}" ;;
  74                         esac
  75
  76                         dest="$DIR/bundled/lib/${token##*/}"
  77                         ddir="${dest%/*}"
  78
  79                         [ -f "$token" -a ! -f "$dest" ] && {
  80                                 _md "$ddir"
  81                                 _cp "$token" "$dest"
  82                         }
  83                 ;; esac
  84         done
  85
  86         _md "$DIR"
  87
  88         # is a dynamically linked executable
  89         if [ -n "$LDSO" ]; then
  90                 _cp "$BIN" "$DIR/bundled/${BIN##*/}"
  91
  92                 RUN="${LDSO#ld-}"; RUN="run-${RUN%%.so*}.sh"
  93
  94                 [ -x "$DIR/bundled/$RUN" ] || {
  95                         cat <<-EOF > "$DIR/bundled/$RUN"
  96                                 #!/usr/bin/env bash
  97                                 dir="\$(dirname "\$0")"
  98                                 bin="\$(basename "\$0")"
  99                                 exec -a "\$0" "\$dir/bundled/lib/$LDSO" --library-path "\$dir/bundled/lib" "\$dir/bundled/\$bin" "\$@"
 100                         EOF
 101                         chmod ${VERBOSE:+-v} 0755 "$DIR/bundled/$RUN"
 102                 }
 103
 104                 _ln "./bundled/$RUN" "$DIR/${BIN##*/}"
 105
 106         # is a static executable or non-elf binary
 107         else
 108                 echo " * not dynamically linked"
 109                 _cp "$BIN" "$DIR/${BIN##*/}"
 110         fi
 111 done