cross compilateur ldd

Vous pouvez aussi utiliser objdump et dans le but de simplement de vidage et de recherche de l'en-tête de la fraction de la binaire. Cela peut vous épargner quelques millisecondes...

#!/bin/sh  
arm-none-linux-gnueabi-objdump -x  | grep NEEDED

Voici une autre option, vous pouvez définir la variable D'environnement LD_TRACE_LOADED_OBJECTS à n'importe quelle valeur, par exemple 1, et ensuite lancer l'exécutable, la sortie devrait être ses dépendances dynamiques.

Comme déjà dit, de par leur conception lddne peut été exécuté sur la cible. Toutefois, il est possible d'imiter ldd comportement à l'aide de readelf. Un script appelé xldd a été développé dans crosstool-ng projet. Une version indépendante de ce script est disponible ici:

https://gist.github.com/jerome-pouiller/c403786c1394f53f44a3b61214489e6f

j'ai trouvé ceci et j'espère qu'il pourra aider beaucoup de gens qui sont encore à la recherche d'une véritable solution ldd. ldd est juste un script avec le soutien de bibliothèque ld-linux. Alors pourquoi ne pas créer votre propre script ldd? Vous devez d'abord trouver ld-linux bibliothèque dans votre système, qui devrait être disponible. Dans mon cas, c'est /lib/ld-linux-armhf.alors?3 j'ai donc mis ceci dans RTLDLIST comme vous pouvez le voir dans le script ci-dessous.

et mettez ce script dans votre appareil ou carte et vous pouvez avoir ldd qui est très pratique pour trouver des bibliothèques de dépendances pour un exécutable.

Bonne chance!

#! /bin/bash
# Copyright (C) 1996-2011, 2012 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 Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 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
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; 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=/usr/share/locale

RTLDLIST="/lib/ld-linux.so.2 /lib64/ld-linux-x86-64.so.2 /lib/ld-linux-armhf.so.3"
warn=
bind_now=
verbose=

while test $# -gt 0; do
  case "" in
  --vers | --versi | --versio | --version)
    echo 'ldd (Ubuntu EGLIBC 2.15-0ubuntu10.3) 2.15'
    printf $"Copyright (C) %s 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.
" "2012"
    printf $"Written by %s and %s.
" "Roland McGrath" "Ulrich Drepper"
    exit 0
    ;;
  --h | --he | --hel | --help)
    printf $"Usage: 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
  -u, --unused            print unused direct dependencies
  -v, --verbose           print all information
"
    printf $"For bug reporting instructions, please see:
%s.
" "<http://www.debian.org/Bugs/>"
    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
    ;;
  -u | --u | --un | --unu | --unus | --unuse | --unused)
    unused=yes
    shift
    ;;
  --v | --ve | --ver)
    echo >&2 $"ldd: option \`' is ambiguous"
    exit 1
    ;;
  --)       # Stop option processing.
    shift; break
    ;;
  -*)
    echo >&2 'ldd:' $"unrecognized option" "\`'"
    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="$add_env LD_LIBRARY_VERSION=$verify_out"
add_env="$add_env LD_VERBOSE=$verbose"
if test "$unused" = yes; then
  add_env="$add_env LD_DEBUG=\"$LD_DEBUG${LD_DEBUG:+,}unused\""
fi

# The following use of cat is needed to make ldd work in SELinux
# environments where the executed program might not have permissions
# to write to the console/tty.  But only bash 3.x supports the pipefail
# option, and we don't bother to handle the case for older bash versions.
if x=`set -o` && test "$x" != "${x#*pipefail}" && set -o pipefail ; then
  try_trace() {
    eval $add_env '"$@"' | cat
  }
else
  try_trace() {
    eval $add_env '"$@"'
  }
fi

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 ! -e "$file"; then
    echo "ldd: ${file}:" $"No such file or directory" >&2
    result=1
  elif test ! -f "$file"; then
    echo "ldd: ${file}:" $"not regular file" >&2
    result=1
  elif test -r "$file"; then
    RTLD=
    ret=1
    for rtld in ${RTLDLIST}; do
      if test -x $rtld; then
    verify_out=`${rtld} --verify "$file"`
    ret=$?
    case $ret in
    [02]) RTLD=${rtld}; break;;
    esac
      fi
    done
    case $ret in
    0|2)
      try_trace "$RTLD" "$file" || result=1
      ;;
    1|126)
      # This can be a non-ELF binary or no binary at all.
      nonelf "$file" || {
    echo $" not a dynamic executable"
    result=1
      }
      ;;
    *)
      echo 'ldd:' ${RTLD} $"exited with unknown exit code" "($ret)" >&2
      exit 1
      ;;
    esac
  else
    echo 'ldd:' $"error: you do not have read permission for" "\`$file'" >&2
    result=1
  fi
done

exit $result
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