elf/ldd.bash.in

   1 #! @BASH@
   2
   3 # Copyright (C) 1996, 1997, 1998 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     ;;
  43   --h | --he | --hel | --help)
  44     echo $"ldd [OPTION]... FILE...
  45       --help              print this help and exit
  46       --version           print version information and exit
  47   -d, --data-relocs       process data relocations
  48   -r, --function-relocs   process data and function relocations
  49 Report bugs using the \`glibcbug' script to <bugs@gnu.ai.mit.edu>."
  50     exit 0
  51     ;;
  52   -d | --d | --da | --dat | --data | --data- | --data-r | --data-re | \
  53   --data-rel | --data-relo | --data-reloc | --data-relocs)
  54     RELOCS='--data-relocs'
  55     shift
  56     ;;
  57   -r | --f | --fu | --fun | --func | --funct | --functi | --functio | \
  58   --function | --function- | --function-r | --function-re | --function-rel | \
  59   --function-relo | --function-reloc | --function-relocs)
  60     RELOCS='--function-relocs'
  61     shift
  62     ;;
  63   --)           # Stop option processing.
  64     shift; break
  65     ;;
  66   -*)
  67     echo >&2 $"ldd: unrecognized option" "\`$1'"
  68     echo >&2 $"Try \`ldd --help' for more information."
  69     exit 1
  70     ;;
  71   *)
  72     break
  73     ;;
  74   esac
  75 done
  76
  77 case $# in
  78 0)
  79   echo >&2 $"ldd: missing file arguments"
  80   echo >&2 $"Try \`ldd --help' for more information."
  81   exit 1
  82   ;;
  83 1)
  84   # We don't list the file name when there is only one.
  85   case "$1" in
  86   /*) file="$1"
  87       ;;
  88   *) file="./$1"
  89      ;;
  90   esac
  91   if test ! -f "$file"; then
  92     echo "ldd: ${file}:" $"no such file"
  93     exit 1
  94   elif test -r "$file"; then
  95     test -x "$file" ||
  96     echo $"ldd: warning: you do not have execution permission for" "\`$file'"
  97       if ${RTLD} --verify "$file"; then
  98         LD_TRACE_LOADED_OBJECTS=1 exec ${RTLD} ${RELOCS} "$file" || exit 1
  99       else
 100         echo $" not a dynamic executable"
 101         exit 1
 102       fi
 103   else
 104     echo $"ldd: error: you do not have read permission for" "\`$file'"
 105     exit 1
 106   fi
 107   exit
 108   ;;
 109 *)
 110   set -e        # Bail out immediately if ${RTLD} loses on any argument.
 111   result=0
 112   for file; do
 113     echo "${file}:"
 114     case "$file" in
 115     /*) :
 116         ;;
 117     *) file="./$file"
 118        ;;
 119     esac
 120     if test ! -f "$file"; then
 121       echo "ldd: ${file}:" $"no such file"
 122       result=1
 123     elif test -r "$file"; then
 124       test -x "$file" || echo $"\
 125 ldd: warning: you do not have execution permission for" "\`$file'"
 126       if ${RTLD} --verify "$file"; then
 127         LD_TRACE_LOADED_OBJECTS=1 ${RTLD} ${RELOCS} "$file" || result=1
 128       else
 129         echo $" not a dynamic executable"
 130         result=1
 131       fi
 132     else
 133       echo $"ldd: error: you do not have read permission for" "\`$file'"
 134       result=1
 135     fi
 136   done
 137 esac
 138
 139 exit $result
 140 # Local Variables:
 141 #  mode:ksh
 142 # End: