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 warn=
  33 bind_now=
  34 verbose=
  35
  36 while test $# -gt 0; do
  37   case "$1" in
  38   --vers | --versi | --versio | --version)
  39     echo 'ldd (GNU libc) @VERSION@'
  40     echo $"Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
  41 This is free software; see the source for copying conditions.  There is NO
  42 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  43 Written by Roland McGrath and Ulrich Drepper."
  44     exit 0
  45     ;;
  46   --h | --he | --hel | --help)
  47     echo $"ldd [OPTION]... FILE...
  48       --help              print this help and exit
  49       --version           print version information and exit
  50   -d, --data-relocs       process data relocations
  51   -r, --function-relocs   process data and function relocations
  52   -v, --verbose           print all information
  53 Report bugs using the \`glibcbug' script to <bugs@gnu.org>."
  54     exit 0
  55     ;;
  56   -d | --d | --da | --dat | --data | --data- | --data-r | --data-re | \
  57   --data-rel | --data-relo | --data-reloc | --data-relocs)
  58     warn=yes
  59     shift
  60     ;;
  61   -r | --f | --fu | --fun | --func | --funct | --functi | --functio | \
  62   --function | --function- | --function-r | --function-re | --function-rel | \
  63   --function-relo | --function-reloc | --function-relocs)
  64     warn=yes
  65     bind_now=yes
  66     shift
  67     ;;
  68   -v | --verb | --verbo | --verbos | --verbose)
  69     verbose=yes
  70     shift
  71     ;;
  72   --v | --ve | --ver)
  73     echo >&2 $"ldd: option \`$1' is ambiguous"
  74     exit 1
  75     ;;
  76   --)           # Stop option processing.
  77     shift; break
  78     ;;
  79   -*)
  80     echo >&2 'ldd:' $"unrecognized option" "\`$1'"
  81     echo >&2 $"Try \`ldd --help' for more information."
  82     exit 1
  83     ;;
  84   *)
  85     break
  86     ;;
  87   esac
  88 done
  89
  90 add_env="LD_TRACE_LOADED_OBJECTS=1 LD_WARN=$warn LD_BIND_NOW=$bind_now"
  91 add_env="$add_env LD_VERBOSE=$verbose"
  92 case $# in
  93 0)
  94   echo >&2 'ldd:' $"missing file arguments"
  95   echo >&2 $"Try \`ldd --help' for more information."
  96   exit 1
  97   ;;
  98 1)
  99   # We don't list the file name when there is only one.
 100   case "$1" in
 101   */*) file="$1"
 102        ;;
 103   *) file="./$1"
 104      ;;
 105   esac
 106   if test ! -f "$file"; then
 107     echo "ldd: ${file}:" $"no such file"
 108     exit 1
 109   elif test -r "$file"; then
 110     test -x "$file" ||
 111     echo 'ldd:' $"warning: you do not have execution permission for" "\`$file'"
 112     ${RTLD} --verify "$file"
 113     case $? in
 114     0)
 115       eval $add_env exec '"$file"' || exit 1
 116       ;;
 117     1)
 118       echo $"   not a dynamic executable"
 119       exit 1
 120       ;;
 121     2)
 122       eval $add_env exec \${RTLD} '"$file"' || exit 1
 123       ;;
 124     *)
 125       echo 'ldd:' ${RTLD} $"exited with unknown exit code" "($?)" >&2
 126       exit 1
 127       ;;
 128     esac
 129   else
 130     echo 'ldd:' $"error: you do not have read permission for" "\`$file'"
 131     exit 1
 132   fi
 133   exit
 134   ;;
 135 *)
 136   result=0
 137   for file; do
 138     echo "${file}:"
 139     case "$file" in
 140     */*) :
 141          ;;
 142     *) file="./$file"
 143        ;;
 144     esac
 145     if test ! -f "$file"; then
 146       echo "ldd: ${file}:" $"no such file"
 147       result=1
 148     elif test -r "$file"; then
 149       test -x "$file" || echo 'ldd:' $"\
 150 warning: you do not have execution permission for" "\`$file'"
 151       ${RTLD} --verify "$file"
 152       case $? in
 153       0)
 154         eval $add_env '"$file"' || result=1
 155         ;;
 156       1)
 157         echo $" not a dynamic executable"
 158         result=1
 159         ;;
 160       2)
 161         eval $add_env ${RTLD} '"$file"' || result=1
 162         ;;
 163       *)
 164         echo 'ldd:' ${RTLD} $"exited with unknown exit code" "($?)" >&2
 165         exit 1
 166         ;;
 167       esac
 168     else
 169       echo 'ldd:' $"error: you do not have read permission for" "\`$file'"
 170       result=1
 171     fi
 172   done
 173 esac
 174
 175 exit $result
 176 # Local Variables:
 177 #  mode:ksh
 178 # End: