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glibc/elf/ldd.bash.in
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#! @BASH@ | |
# 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. | |
# We should be able to find the translation right at the beginning. | |
TEXTDOMAIN=libc | |
TEXTDOMAINDIR=@TEXTDOMAINDIR@ | |
RTLD=@RTLD@ | |
warn= | |
bind_now= | |
verbose= | |
while test $# -gt 0; do | |
case "$1" in | |
--vers | --versi | --versio | --version) | |
echo 'ldd (GNU libc) @VERSION@' | |
echo $"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'" | |
echo >&2 $"Try \`ldd --help' for more information." | |
exit 1 | |
;; | |
*) | |
break | |
;; | |
esac | |
done | |
nonelf () | |
{ | |
# Maybe extra code for non-ELF binaries. | |
return 1; | |
} | |
add_env="LD_TRACE_LOADED_OBJECTS=1 LD_WARN=$warn LD_BIND_NOW=$bind_now" | |
add_env="$add_env LD_VERBOSE=$verbose" | |
case $# in | |
0) | |
echo >&2 'ldd:' $"missing file arguments" | |
echo >&2 $"Try \`ldd --help' for more information." | |
exit 1 | |
;; | |
1) | |
single_file=t | |
;; | |
*) | |
single_file=f | |
;; | |
esac | |
result=0 | |
for file do | |
# We don't list the file name when there is only one. | |
test $single_file = t || echo "${file}:" | |
case $file in | |
*/*) : | |
;; | |
*) file=./$file | |
;; | |
esac | |
if test ! -f "$file"; then | |
echo "ldd: ${file}:" $"No such file or directory" >&2 | |
result=1 | |
elif test -r "$file"; then | |
test -x "$file" || echo 'ldd:' $"\ | |
warning: you do not have execution permission for" "\`$file'" >&2 | |
verify_out=`${RTLD} --verify "$file"` | |
case $? in | |
0) | |
eval $add_env '"$file"' || result=1 | |
;; | |
1) | |
# This can be a non-ELF binary or no binary at all. | |
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'" >&2 | |
result=1 | |
fi | |
done | |
exit $result | |
# Local Variables: | |
# mode:ksh | |
# End: |