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|
#! /bin/sh
# Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB. If not,
# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# 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@
warn=
bind_now=
while test $# -gt 0; do
case "$1" in
--vers | --versi | --versio | --version)
echo 'ldd (GNU libc) @VERSION@
Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.'
exit 0
;;
--h | --he | --hel | --help)
echo "ldd [OPTION]... FILE...
--help print this help and exit
--version print version information and exit
-d, --data-relocs process data relocations
-r, --function-relocs process data and function relocations
-v, --verbose print all information
Report bugs using the \`glibcbug' script to <bugs@gnu.org>."
exit 0
;;
-d | --d | --da | --dat | --data | --data- | --data-r | --data-re | \
--data-rel | --data-relo | --data-reloc | --data-relocs)
warn=yes
shift
;;
-r | --f | --fu | --fun | --func | --funct | --functi | --functio | \
--function | --function- | --function-r | --function-re | --function-rel | \
--function-relo | --function-reloc | --function-relocs)
warn=yes
bind_now=yes
shift
;;
-v | --verb | --verbo | --verbos | --verbose)
verbose=yes
shift
;;
--v | --ve | --ver)
echo >&2 "ldd: option \`$1' is ambiguous"
exit 1
;;
--) # Stop option processing.
shift; break
;;
-*)
echo >&2 "\
ldd: unrecognized option \`$1'
Try \`ldd --help' for more information."
exit 1
;;
*)
break
;;
esac
done
nonelf ()
{
# Maybe extra code for non-ELF binaries.
return 1;
}
add_env="LD_TRACE_LOADED_OBJECTS=1 LD_WARN=$warn LD_BIND_NOW=$bind_now"
add_env="$add_env LD_VERBOSE=$verbose"
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 "ldd: ${file}: no such file"
exit 1
else
if test -r "$file"; then
test -x "$file" ||
echo "ldd: warning: you do not have execution permission for \`$file'"
verify_out=`${RTLD} --verify "$file"`
case $? in
0)
eval $add_env exec '"$file"' || exit 1
;;
1)
nonelf $file ||
echo ' not a dynamic executable'
exit 1
;;
2)
eval $add_env exec \${RTLD} '"$file"' || exit 1
;;
*)
echo "ldd: ${RTLD} exited with unknown exit code ($?)" >&2
exit 1
;;
esac
else
echo "ldd: error: you do not have read permission for \`$file'"
exit 1
fi
fi
exit
;;
*)
set -e # Bail out immediately if ${RTLD} loses on any argument.
result=0
for file; do
echo "${file}:"
case "$file" in
*/*) :
;;
*) file="./$file"
;;
esac
if test ! -f "$file"; then
echo "ldd: ${file}: no such file"
result=1
else
if test -r "$file"; then
test -x "$file" || echo "\
ldd: warning: you do not have execution permission for \`$file'"
verify_out=`${RTLD} --verify "$file"`
case $? in
0)
eval $add_env '"$file"' || result=1
;;
1)
nonelf $file ||
echo ' not a dynamic executable'
result=1
;;
2)
eval $add_env ${RTLD} '"$file"' || result=1
;;
*)
echo "ldd: ${RTLD} exited with unknown exit code ($?)" >&2
exit 1
;;
esac
else
echo "ldd: error: you do not have read permission for \`$file'"
result=1
fi
fi
done
esac
exit $result
|
