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" ] || LDD=
  50
  51 for BIN in "$@"; do
  52         [ -n "$BIN" -a -x "$BIN" -a -n "$DIR" ] || {
  53                 echo "Usage: $0 <destdir> <executable> ..." >&2
  54                 exit 1
  55         }
  56
  57         [ ! -d "$DIR/bundled/lib" ] && {
  58                 _md "$DIR/bundled/lib"
  59                 _md "$DIR/bundled/usr"
  60                 _ln "../lib" "$DIR/bundled/usr/lib"
  61         }
  62
  63         LDSO=""
  64
  65         echo "Bundling ${BIN##*/}"
  66         [ -n "$LDD" ] && {
  67                 for token in $("$LDD" "$BIN" 2>/dev/null); do
  68                         case "$token" in */*.so*)
  69                                 case "$token" in
  70                                         *ld-*.so*) LDSO="${token##*/}" ;;
  71                                         *) echo " * lib: ${token##*/}" ;;
  72                                 esac
  73
  74                                 dest="$DIR/bundled/lib/${token##*/}"
  75                                 ddir="${dest%/*}"
  76
  77                                 [ -f "$token" -a ! -f "$dest" ] && {
  78                                         _md "$ddir"
  79                                         _cp "$token" "$dest"
  80                                 }
  81                         ;; esac
  82                 done
  83         }
  84
  85         _md "$DIR"
  86
  87         # is a dynamically linked executable
  88         if [ -n "$LDSO" ]; then
  89                 _cp "$BIN" "$DIR/bundled/${BIN##*/}"
  90
  91                 RUN="${LDSO#ld-}"; RUN="run-${RUN%%.so*}.sh"
  92
  93                 [ -x "$DIR/bundled/$RUN" ] || {
  94                         cat <<-EOF > "$DIR/bundled/$RUN"
  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/$RUN"
 101                 }
 102
 103                 _ln "./bundled/$RUN" "$DIR/${BIN##*/}"
 104
 105         # is a static executable or non-elf binary
 106         else
 107                 [ -n "$LDD" ] && echo " * not dynamically linked"
 108                 _cp "$BIN" "$DIR/${BIN##*/}"
 109         fi
 110 done