Root/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
22DIR="$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
45for LDD in ${PATH//://ldd }/ldd; do
46    "$LDD" --version >/dev/null 2>/dev/null && break
47    LDD=""
48done
49
50[ -n "$LDD" -a -x "$LDD" ] || {
51    echo "Unable to find working ldd" >&2
52    exit 4
53}
54
55for 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
110done
111

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