diff options
Diffstat (limited to 'scripts/bundle-libraries.sh')
| -rwxr-xr-x | scripts/bundle-libraries.sh | 102 |
1 files changed, 75 insertions, 27 deletions
diff --git a/scripts/bundle-libraries.sh b/scripts/bundle-libraries.sh index aba1cd6..dfc2b85 100755 --- a/scripts/bundle-libraries.sh +++ b/scripts/bundle-libraries.sh @@ -2,7 +2,7 @@ # # Script to install host system binaries along with required libraries. # -# Copyright (C) 2012-2013 Jo-Philipp Wich <jo@mein.io> +# Copyright (C) 2012-2017 Jo-Philipp Wich <jo@mein.io> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -27,6 +27,13 @@ _cp() { } } +_mv() { + mv ${VERBOSE:+-v} "$1" "$2" || { + echo "mv($1 $2) failed" >&2 + exit 1 + } +} + _md() { mkdir ${VERBOSE:+-v} -p "$1" || { echo "mkdir($1) failed" >&2 @@ -41,6 +48,52 @@ _ln() { } } +_relpath() { + local base="$(readlink -f "$1")" + local dest="$(readlink -f "$2")" + local up + + [ -d "$base" ] || base="${base%/*}" + [ -d "$dest" ] || dest="${dest%/*}" + + while true; do + case "$base" + in "$dest"/*) + echo "$up/${base#$dest/}" + break + ;; + *) + dest="${dest%/*}" + up="${up:+$up/}.." + ;; + esac + done +} + +_wrapper() { + cat <<-EOT | ${CC:-gcc} -x c -o "$1" - + #include <unistd.h> + #include <stdio.h> + + int main(int argc, char **argv) { + const char *self = argv[0]; + const char *target = argv[1]; + + if (argc < 3) { + fprintf(stderr, "Usage: %s executable arg0 [args...]\n", self); + return 1; + } + + return execv(target, argv + 2); + } + EOT + + [ -x "$1" ] || { + echo "compiling wrapper failed" >&2 + exit 5 + } +} + for LDD in ${PATH//://ldd }/ldd; do "$LDD" --version >/dev/null 2>/dev/null && break LDD="" @@ -49,29 +102,31 @@ done [ -n "$LDD" -a -x "$LDD" ] || LDD= for BIN in "$@"; do - [ -n "$BIN" -a -x "$BIN" -a -n "$DIR" ] || { + [ -n "$BIN" -a -n "$DIR" ] || { echo "Usage: $0 <destdir> <executable> ..." >&2 exit 1 } - [ ! -d "$DIR/bundled/lib" ] && { - _md "$DIR/bundled/lib" - _md "$DIR/bundled/usr" - _ln "../lib" "$DIR/bundled/usr/lib" + [ ! -d "$DIR/lib" ] && { + _md "$DIR/lib" + _md "$DIR/usr" + _ln "../lib" "$DIR/usr/lib" + } + + [ ! -x "$DIR/lib/runas" ] && { + _wrapper "$DIR/lib/runas" } LDSO="" - echo "Bundling ${BIN##*/}" - [ -n "$LDD" ] && { + [ -n "$LDD" ] && [ -x "$BIN" ] && file "$BIN" | grep -sqE "ELF.*executable" && { for token in $("$LDD" "$BIN" 2>/dev/null); do case "$token" in */*.so*) case "$token" in *ld-*.so*) LDSO="${token##*/}" ;; - *) echo " * lib: ${token##*/}" ;; esac - dest="$DIR/bundled/lib/${token##*/}" + dest="$DIR/lib/${token##*/}" ddir="${dest%/*}" [ -f "$token" -a ! -f "$dest" ] && { @@ -82,29 +137,22 @@ for BIN in "$@"; do done } - _md "$DIR" - # is a dynamically linked executable if [ -n "$LDSO" ]; then - _cp "$BIN" "$DIR/bundled/${BIN##*/}" + echo "Bundling ${BIN##*/}" + RUNDIR="$(readlink -f "$BIN")"; RUNDIR="${RUNDIR%/*}" RUN="${LDSO#ld-}"; RUN="run-${RUN%%.so*}.sh" + REL="$(_relpath "$DIR/lib" "$BIN")" - [ -x "$DIR/bundled/$RUN" ] || { - cat <<-EOF > "$DIR/bundled/$RUN" - #!/usr/bin/env bash - dir="\$(dirname "\$0")" - bin="\$(basename "\$0")" - exec -a "\$0" "\$dir/bundled/lib/$LDSO" --library-path "\$dir/bundled/lib" "\$dir/bundled/\$bin" "\$@" - EOF - chmod ${VERBOSE:+-v} 0755 "$DIR/bundled/$RUN" - } + _mv "$BIN" "$RUNDIR/.${BIN##*/}.bin" - _ln "./bundled/$RUN" "$DIR/${BIN##*/}" + cat <<-EOF > "$BIN" + #!/usr/bin/env bash + dir="\$(dirname "\$0")" + exec "\$dir/${REL:+$REL/}$LDSO" --library-path "\$dir/${REL:+$REL/}" "\$dir/${REL:+$REL/}runas" "\$dir/.${BIN##*/}.bin" "\$0" "\$@" + EOF - # is a static executable or non-elf binary - else - [ -n "$LDD" ] && echo " * not dynamically linked" - _cp "$BIN" "$DIR/${BIN##*/}" + chmod ${VERBOSE:+-v} 0755 "$BIN" fi done |