elf/ldd.bash.in

   1 #! @BASH@
   2
   3 # Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   4 # This file is part of the GNU C Library.
   5
   6 # The GNU C Library is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU Library General Public License as
   8 # published by the Free Software Foundation; either version 2 of the
   9 # License, or (at your option) any later version.
  10
  11 # The GNU C Library is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # Library General Public License for more details.
  15
  16 # You should have received a copy of the GNU Library General Public
  17 # License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 # Boston, MA 02111-1307, USA.
  20
  21
  22 # This is the `ldd' command, which lists what shared libraries are
  23 # used by given dynamically-linked executables.  It works by invoking the
  24 # run-time dynamic linker as a command and setting the environment
  25 # variable LD_TRACE_LOADED_OBJECTS to a non-empty value.
  26
  27 # We should be able to find the translation right at the beginning.
  28 TEXTDOMAIN=libc
  29 TEXTDOMAINDIR=@TEXTDOMAINDIR@
  30
  31 RTLD=@RTLD@
  32 RELOCS=
  33
  34 while test $# -gt 0; do
  35   case "$1" in
  36   --v | --ve | --ver | --vers | --versi | --versio | --version)
  37     echo $"ldd (GNU libc) @VERSION@
  38 Copyright (C) 1996, 1997 Free Software Foundation, Inc.
  39 This is free software; see the source for copying conditions.  There is NO
  40 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
  41     exit 0 ;;
  42   --h | --he | --hel | --help)
  43     echo $"ldd [OPTION]... FILE...
  44       --help              print this help and exit
  45       --version           print version information and exit
  46   -d, --data-relocs       process data relocations
  47   -r, --function-relocs   process data and function relocations
  48 Report bugs using the \`glibcbug' script to <bugs@gnu.ai.mit.edu>."
  49     exit 0 ;;
  50   -d | --d | --da | --dat | --data | --data- | --data-r | --data-re | \
  51   --data-rel | --data-relo | --data-reloc | --data-relocs)
  52     RELOCS='--data-relocs'
  53     shift ;;
  54   -r | --f | --fu | --fun | --func | --funct | --functi | --functio | \
  55   --function | --function- | --function-r | --function-re | --function-rel | \
  56   --function-relo | --function-reloc | --function-relocs)
  57     RELOCS='--function-relocs'
  58     shift ;;
  59   --)           # Stop option processing.
  60     shift; break ;;
  61   -*)
  62     echo >&2 $"ldd: unrecognized option" "\`$1'"
  63     echo >&2 $"Try \`ldd --help' for more information."
  64     exit 1 ;;
  65   *)
  66     break ;;
  67   esac
  68 done
  69
  70 case $# in
  71 0)
  72   echo >&2 $"ldd: missing file arguments"
  73   echo >&2 $"Try \`ldd --help' for more information."
  74   exit 1 ;;
  75 1)
  76   # We don't list the file name when there is only one.
  77   case "$1" in
  78   /*) file="$1" ;;
  79   *) file="./$1" ;;
  80   esac
  81   if test ! -f "$file"; then
  82     echo "ldd: ${file}:" $"no such file"
  83     exit 1
  84   elif test -r "$file"; then
  85     test -x "$file" ||
  86     echo $"ldd: warning: you do not have execution permission for" "\`$file'"
  87       if ${RTLD} --verify "$file"; then
  88         LD_TRACE_LOADED_OBJECTS=1 exec ${RTLD} ${RELOCS} "$file" || exit 1
  89       else
  90         echo $" not a dynamic executable"
  91         exit 1
  92       fi
  93   else
  94     echo $"ldd: error: you do not have read permission for" "\`$file'"
  95     exit 1
  96   fi
  97   exit ;;
  98 *)
  99   set -e        # Bail out immediately if ${RTLD} loses on any argument.
 100   result=0
 101   for file; do
 102     echo "${file}:"
 103     case "$file" in
 104     /*) : ;;
 105     *) file="./$file" ;;
 106     esac
 107     if test ! -f "$file"; then
 108       echo "ldd: ${file}:" $"no such file"
 109       result=1
 110     elif test -r "$file"; then
 111       test -x "$file" || echo $"\
 112 ldd: warning: you do not have execution permission for" "\`$file'"
 113       if ${RTLD} --verify "$file"; then
 114         LD_TRACE_LOADED_OBJECTS=1 ${RTLD} ${RELOCS} "$file" || result=1
 115       else
 116         echo $" not a dynamic executable"
 117         result=1
 118       fi
 119     else
 120       echo $"ldd: error: you do not have read permission for" "\`$file'"
 121       result=1
 122     fi
 123   done
 124 esac
 125
 126 exit $result
 127 # Local Variables:
 128 #  mode:ksh
 129 # End: