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|
#! /bin/sh
# This is the `ldd' command, which lists what shared libraries are
# used by given dynamically-linked executables. It works by invoking the
# run-time dynamic linker as a command and setting the environment
# variable LD_TRACE_LOADED_OBJECTS to a non-empty value.
RTLD=@RTLD@
usage="\
ldd [OPTION]... FILE...
--help print this help and exit
--version print version information and exit
Report bugs to <bug-glibc@prep.ai.mit.edu>."
while test $# -gt 0; do
case "$1" in
--v*)
echo 'ldd (GNU libc) @VERSION@'; exit 0 ;;
--h*)
echo "$usage"; exit 0 ;;
--) # Stop option prcessing
shift; break ;;
*)
break ;;
esac
done
case $# in
0)
echo >&2 "\
ldd: missing file arguments
Try \`ldd --help' for more information."
exit 1 ;;
1)
# We don't list the file name when there is only one.
case "$1" in
/*) file="$1" ;;
*) file="./$1" ;;
esac
if test ! -f "$file"; then
echo "${file}: no such file"
elif ${RTLD} --verify "$file"; then
LD_TRACE_LOADED_OBJECTS=1 exec ${RTLD} "$file" && exit 1
else
echo ' not a dynamic executable'
fi
exit ;;
*)
set -e # Bail out immediately if ${RTLD} loses on any argument.
for file; do
echo "${file}:"
case "$file" in
/*) : ;;
*) file="./$file" ;;
esac
if test ! -f "$file"; then
echo "$file: no such file"
elif ${RTLD} --verify "$file"; then
LD_TRACE_LOADED_OBJECTS=1 ${RTLD} "$file"
else
echo ' not a dynamic executable'
fi
done
esac
exit 0
|
