Salut,
je n’arrive plus à télécharger mklibs.sh sur le CVS de Debian.
Y’aurait t’il un lien valide quelque part ?
Merci
Bonsoir,
tu as des messages d’erreurs quand tu fais ça ? :
~$ apt-cache search mklibs
mklibs - Shared library reduction script
mklibs-copy - Shared library reduction script
Je suis sous fedora6. Elle me sert de plate forme de développement. La debian est sur une compact flash tournant sur une mini itx.
J’aimerai simplement sous fedora 6 ne pas me prendre la tete avec des ldd, pour remplir sur la partition dédiée les librairies du systeme debian en fonction des commandes que je veux lui inclure.
Donc, je cherche les sources du script mklibs.sh et eventuellement les programmes et librairies associées. Quelqu’un pourrait peut-etre les mettre à disposition directement ici en téléchargement ?
Merci de ta réponse.
Je comprends pas trop ce que tu veux mais ceci peut t’aider :
$ apt-file search mklibs.sh
mkinitrd-cd: usr/sbin/mklibs.sh
donc ton script apparient à mkinitrd-cd, que tu trouves là (source et tout) :
bonsoir,
tu pourrais nous dire si ceci équivaut au même :
jcode@debian:~$ sudo apt-get -s source mklibs
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances... Fait
Nécessité de prendre 10,8ko dans les sources.
Récupération des sources mklibs en virant l’option -s qui simule (oui moi je n’ai pas besoin de ces sources …).
salut, le mieux est que tu compares :
[code]#!/bin/bash
mklibs.sh: An automated way to create a minimal /lib/ directory.
Copyright 1999 by Marcus Brinkmann Marcus.Brinkmann@ruhr-uni-bochum.de
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
STATIC DATA SECTION
usage="Usage: $0 [OPTION]… -d DEST FILE …“
try=“Try “`”$0 --help’ for more information"
version=”$0 0.1, Copyright 1999 Marcus Brinkmann”
PATH=/bin:/usr/bin
default_src_path=/lib:/usr/lib
dest="“
exec=”“
action=”"
verbose="false"
no_default_libs=“false”
gcc=${GCC-gcc}
objdump=${OBJDUMP-objdump}
objcopy=${OBJCOPY-objcopy}
=================
GRAPH ABSTRACTION
=================
Because we do some hairy graph operations, we provide some
abstractions of them. Some functions here are very simple, but
the source is much more readable this way.
check_node NODE …
checks if all NODEs are valid node names.
Used internally for verificaton only.
Return 0 if all NODEs are valid.
Currently, a node is valid if it does not contain a space.
check-node () {
local node
for node in “$@” ; do
if [ “xecho $node | sed -e '/ /d'” = x ] ; then
echo 1>&2 $0: check-node: invalid node "$node"
exit 1
fi
done
return 0
}
is-graph FILE …
provides a very simple type assertion
Turns FILE into a graph if it isn’t already and returns 0.
is-graph () {
local file
for file in “$@” ; do
if [ ! -e “$file” ] ; then
touch "$qfile"
fi
done
}
add-node FILE NODE
add a node NODE to graph FILE.
This is useful if you need to make sure that a node appears
in the graph without actually connecting it to an arrow.
You don’t need to add nodes that are part of an arrow.
add-node () {
if [ $# != 2 ] ; then
echo 1>&2 $0: add-node: internal error: called with invalid number of arguments
exit 1
fi
check-node "$2"
echo “$2 $2” >> "$1"
return 0
}
add-arrow FILE NODE1 NODE2
add an arrow from NODE1 to NODE2 to graph FILE.
add-arrow () {
if [ $# != 3 ] ; then
echo 1>&2 $0: add-arrow: internal error: called with invalid number of arguments
exit 1
fi
check-node “$2” "$3"
echo “$2 $3” >> "$1"
return 0
}
find-cycle FILE
finds a cycle in a graph FILE.
If a cycle is found, it is printed out at stdin, one node each line,
and 0 is returned. Otherwise, nothing is printed on stdout and exit
status is 1.
find-cycle () {
if [ $# != 1 ] ; then
echo 1>&2 $0: find-cycle: internal error: called with invalid number of arguments
exit 1
fi
tsort “$1” 2> “$fl_dir/find-cycle” > /dev/null
if [ ! -s $fl_dir/find-cycle ] ; then
return 1
else
if [ “xhead -1 $fl_dir/find-cycle” != “xtsort: cycle in data” ] ; then
echo 1>&2 $0: find-cycle: internal error: tsort has invalid output format
return 2
fi
cat “$fl_dir/find-cycle” | sed -e ‘1d’ -e ‘/tsort: cycle in data/,$d’ -e 's/^tsort: //'
fi
}
shrink-nodes FILE NODE1 …
shrinks several nodes NODE1 … to a single node in graph FILE.
To hide cycles, we treat a cycle as a single node and replace
each occurence of a node in the cycle with a new node
[NODE1,…] . This change is destructive and can not be undone!
(You would need to store the entry point to the cycle for each arrow
pointing to/from it).
This function does not check if the the nodes NODE1 … exist.
However, if none of these nodes exists already, the new node will
not appear either. This makes this function sort of idem potent.
It does not check if NODE1 … are a cycle. We will assume this
later in the library dependency analysis, but nothing in the code
relies on it.
Always shrink all cycles, or you may get unresolved symbols.
Example:
N1 —> N2 N1 -------> /------------\
| “shrink-nodes N2 N4” | _ | [N2,N4] |
v -------------------> v _____/| ------------/
N3 —> N4 N3 /
A small helper function will aid us…
equal-match STRING STRING1 …
return 0 if STRING is among STRING1 …, 1 otherwise.
equal-match () {
local string
local stringk
string="$1"
shift
for stringk in “$@” ; do
if [ “x$string” = “x$stringk” ] ; then
return 0
fi
done
return 1
}
shrink-nodes () {
local head
local lnode
local rnode
local graph="$1"
shift
is-graph "$graph"
check-node “$@“
local cnode=”[echo "$@" | sed 's/ /,/g']”
Okay, it’s a hack. We treat the graph as a queue. I am just too
lazy to copy the relevant code here. Of course, we exploit several
properties of the graph and queue file format here (for example,
that graphs never can contain a QUEUE_SEPERATOR, and that a graph is
really a simple file with “a b” entries).
cat /dev/null > “$fl_dir/shrink-cycle"
while head=get-top-of-queue "$graph" ; do
lnode=echo $head|sed 's/ [^ ]*$//'
if equal-match “$lnode” “$@” ; then
lnode=”$cnode"
fi
rnode=echo $head|sed 's/^[^ ]* //'
if equal-match “$rnode” “$@” ; then
rnode="$cnode"
fi
echo “$lnode $rnode” >> "$fl_dir/shrink-cycle"
done
cat “$fl_dir/shrink-cycle” | sort -u > “$graph”
}
=================
QUEUE ABSTRACTION
=================
I added an abstract interface for queues to make the code more readable.
Queue operations usually consist of several atomic file operations, which
can get quite messy.
You can use queues to simply loop through all lines of a file, but you
also can add stuff to the queue while processing it.
Implementation: All queues consist of a QUEUE_FILE which has two parts:
the remaining entries in the queue (QUEUE) and the already processed
entries (BUCKET).
The two parts are seperated by a line containing only QUEUE_SEPERATOR.
QUEUE_SEPERATOR=SEPERATOR___ABOVE_IS_QUEUE__BELOW_IS_BUCKET___SEPERATOR
check-queue-entry QENTRY …
checks if all queue entries QENTRY are valid.
Used internally for verificaton only.
Return 0 if all QENTRYs are valid.
Currently, a node is valid if it does not match the QUEUE_SEPERATOR.
check-queue-entry () {
local qentry
for qentry in “$@” ; do
if [ “xecho $qentry | sed "/^$QUEUE_SEPERATOR$/d"” = x ] ; then
echo 1>&2 $0: check-queue-entry: invalid qentry name "$qentry"
exit 1
fi
done
return 0
}
is-queue QUEUE_FILE …
provides a very simple type assertion
Turns QUEUE_FILE into a queue if it isn’t already and returns 0.
is-queue () {
local qfile
for qfile in “$@” ; do
if [ ! -e “$qfile” ] ; then
echo “$QUEUE_SEPERATOR” > "$qfile"
else
if ! grep -q “^$QUEUE_SEPERATOR$” “$qfile” ; then
echo “$QUEUE_SEPERATOR” >> “$qfile”;
fi
fi
done
}
get-top-of-queue QUEUE_FILE
processes a queue one more time.
If QUEUE of QUEUE_FILE is empty, exit status is 1 and no output is given.
Otherwise, top of QUEUE is removed, returned on stdout and
appended to the end of the BUCKET part of QUEUE_FILE.
get-top-of-queue () {
if [ $# != 1 ] ; then
echo 1>&2 $0: get-top-of-queue: internal error: called with invalid number of arguments
exit 1
fi
is-queue "$1"
local head=head -1 "$1"
if [ “x$head” = “x$QUEUE_SEPERATOR” ] ; then
return 1
else
sed -e 1d “$1” > "$fl_dir/get-top-of-queue"
echo “$head” | tee --append "$fl_dir/get-top-of-queue"
cat “$fl_dir/get-top-of-queue” > "$1"
return 0
fi
}
add-to-queue-if-not-there QUEUE_FILE QENTRY …
add queue entries QENTRY … to the beginning of the
QUEUE of QUEUE_FILE if it is neither in QUEUE nor in BUCKET
of QUEUE_FILE.
Return with exit status 0.
Note: If you want to add QENTRY to the end of QUEUE, you would do
something like the following:
sed -e s/^$QUEUE_SEPERATOR$/$head"’\
'"$QUEUE_SEPERATOR/"
which is necessary to pass the newline to sed. I think we can take the
easy way out.
add-to-queue-if-not-there () {
local qentry
local qfile="$1"
shift
check-queue-entry "$@"
is-queue "$qfile"
for qentry in “$@” ; do
if ! grep -q “^$qentry$” “$qfile” ; then
echo “$qentry” > "$fl_dir/add-to-queue-if-not-there"
cat “$qfile” >> "$fl_dir/add-to-queue-if-not-there"
cat “$fl_dir/add-to-queue-if-not-there” > "$qfile"
fi
done
return 0
}
==================
LIBRARY PROCESSING
==================
The following helper functions mess around with the actual
processing and installation of libraries.
get-library-depends OBJ1 …
get all libraries the objects OBJ1 … depend on.
OBJs can be binaries or shared libraries.
The list is neither sort’ed nor uniq’ed.
get-library-depends () {
if [ $# = 0 ] ; then
echo 1>&2 $0: get-library-depends: internal error: no arguments
exit 1
fi
$objdump --private-headers “$@” 2> /dev/null
| sed -n ‘s/^ *NEEDED ([^ ])$/\1/p’
}
get-undefined-symbols OBJ1 …
get all unresolved symbols in OBJ1 …
The list is neither sort’ed nor uniq’ed.
get-undefined-symbols () {
if [ $# = 0 ] ; then
echo 1>&2 $0: get-undefined-symbols: internal error: no arguments
exit 1
fi
ash has undefined reference to sys_siglist if .bss is not mentioned
here. Reported by Joel Klecker.
All symbols are epxosed, so we just catch all. Suggested by Roland
McGrath. Another thing to try is to investigate --dynamic-reloc.
$objdump --dynamic-syms “$@” 2> /dev/null
| sed -n ‘s/^.* ([^ ]*)$/\1/p’
| sed -n ‘s/^.[*UND*|.bss]. ([^ ]*)$/\1/p’
}
get-provided-symbols LIB1 LIB2 …
get all symbols available from libraries LIB1 … .
Does only work for pic libraries.
v Watch the tab stop here.
00000000 w F .text 00000000 syscall_device_write_request
00000000 g F .text 0000056c __strtoq_internal
get-provided-symbols () {
if [ $# = 0 ] ; then
echo 1>&2 $0: get-provided-symbols: internal error: no arguments
exit 1
fi
$objdump --syms “$@” 2>/dev/null | grep -v ‘*UND*’
| sed -n ‘s/^[0-9a-f]+ (g | w) … .* [0-9a-f]+ (0x8[08])? ([^ ])$/\3/p’
}
Crude hack (?) only used for diagnostic.
get-provided-symbols-of-so-lib () {
if [ $# = 0 ] ; then
echo 1>&2 $0: get-provided-symbols: internal error: no arguments
exit 1
fi
$objdump --dynamic-syms “$@” 2>/dev/null
| sed -e ‘/*UND*/d’ | sed -n ‘s/^.* ([^ ]*)$/\1/p’
}
get-common-symbols FILE1 FILE2
returns a list of all symbols in FILE1 that appear also in FILE2
Note: When get-common-symbols returns, FILE1 and FILE2 are “sort -u”'ed.
Note: Version Information in FILE1 is ignored when comparing.
get-common-symbols () {
if [ $# != 2 ] ; then
echo 1>&2 $0: get-common-symbols: internal error: called with invalid number of arguments
exit 1
fi
Not needed anymore, but we go for compatibility.
(Somewhere we HAVE to clean FILE2 up).
sort -u “$1” > $fl_dir/get-common-symbols
cat $fl_dir/get-common-symbols > "$1"
sort -u “$2” > $fl_dir/get-common-symbols
cat $fl_dir/get-common-symbols > “$2”
local symbol=
while symbol=get-top-of-queue $fl_dir/get-common-symbols ; do
grep ^$symbol$\|^$symbol@ "$1"
done
}
create-link TARGET LINK_NAME
creates a soft link if there isn’t one already.
create-link () {
if [ $# != 2 ] ; then
echo 1>&2 $0: create-link: internal error: called with invalid number of arguments
exit 1
fi
if [ ! -e “$2” ] ; then
$action ln -sf “$1” "$2"
fi
}
find-file-glob PATH FILE
search all directories in PATH for file FILE, return absolute path
FILE can be a regular expression, and/or a relative path to a file.
PATH is a list, seperator is ‘:’.
find-file-glob () {
if [ $# != 2 ] ; then
echo 1>&2 $0: find-file-glob: internal error: exactly two arguments required
exit 1
fi
local path=$1
export dir=echo $path | sed -e 's/:.*$//'
export regex=$2
until [ “x$path” = x ] ; do
if [ “x$dir” != x ] ; then
file=/bin/bash -c 'ls $dir/$regex' 2> /dev/null
if [ “$file” ] ; then
second_match=echo $file | cut -s -d " " -f 2
if [ $second_match ] ; then
echo 1>&2 $0: find-file-glob: $dir/$regex internal error: multiple matches
exit 1
fi
echo "$file"
return 0
fi
fi
path=echo $path | sed -e 's/^[^:]*:*//'
dir=echo $path | sed -e 's/:.*$//'
done
return 1
}
find-file PATH FILE
search all directories in PATH for file FILE, return absolute path
FILE can be a relative path and a filename.
PATH is a list, seperator is ‘:’.
find-file () {
if [ $# != 2 ] ; then
echo 1>&2 $0: find-file: internal error: exactly two arguments required
exit 1
fi
local path=$1
local dir=echo $path | sed -e 's/:.*$//'
until [ “x$path” = x ] ; do
if [ “x$dir” != x ] ; then
if [ -e “$dir/$2” ] ; then
echo "$dir/$2"
return 0
fi
fi
path=echo $path | sed -e 's/^[^:]*:*//'
dir=echo $path | sed -e 's/:.*$//'
done
return 1
}
find-files PATH FILE1 FILE2 …
search all directories in PATH for file FILE1, FILE2…
FILE can be a relative path and a filename.
PATH is a list, seperator is ‘:’.
Return value is a white space seperated list of absolute filenames.
find-files () {
if [ $# -lt 2 ] ; then
echo 1>&2 $0: find-files: internal error: too few arguments
exit 1
fi
local path="$1" ; shift
while [ $# != 0 ] ; do
find-file $path $1
shift
done
}
get-pic-file LIB
returns the filename of the pic archive for LIB.
Note: There doesn’t seem to be any convention, ick.
get-pic-file () {
if [ $# != 1 ] ; then
echo 1>&2 $0: get-pic-file: internal error: called with invalid number of arguments
exit 1
fi
case “$1” in
libc-*.so)
# For libc.so, we have some extra files to include. The older 2.1.x
# lib uses .so for the object names, while newer ones use .o. Also,
# some of them have an interp object. This should work in all cases.
echo find-files $src_path libc_pic/soinit.so libc_pic/soinit.o \ libc_pic.a libc_pic/sofini.so libc_pic/sofini.o \ libc_pic/interp.o
;;
*)
local libname=echo $1 | sed -e 's/^lib\([^-.]*\)[-.].*/\1/'
echo find-file-glob $src_path lib${libname}*_pic.a
;;
esac
return 0
}
get-extra-flags () {
if [ $# != 1 ] ; then
echo 1>&2 $0: get-extra-flags: internal error: called with invalid number of arguments
exit 1
fi
flags=""
case “$1” in
libc-[0-9]*.so)
# libc.so is a special case, we need the dynamic linker aswell
local ver=echo $1 | sed -e 's/^libc-\(.*\).so/\1/'
flags="find-file $src_path ld-${ver}.so"
;;
esac
local libname=echo $1 | sed -e 's/^lib\([^-.]*\)[-.].*/\1/'
local map=find-file $src_path lib${libname}_pic.map
test -z “$map” ||
flags="$flags -Wl,–version-script=${map}"
echo $flags
return 0
}
install-small-lib LIB_SONAME
makes a small version of library LIB_SONAME
This happens the following way:
0. Make exception for the linker ld.
1. Try to figure out complete path of pic library.
2. If no found, copy the shared library, else:
a. Get shared libraries this lib depends on, transform into a
list of “-lfoo” options.
b. Get a list of symbols both provided by the lib and in the undefined
symbols list.
c. Make the library, strip it.
d. Add symbols that are still undefined to the undefined symbols list.
e. Put library into place.
install-small-lib () {
if [ $# != 1 ] ; then
echo 1>&2 $0: install-small-lib: internal error: called with invalid number of arguments
exit 1
fi
local src_file=find-file $src_path $1
if echo "$1" | grep -q ^ld ; then
get-provided-symbols “$src_file” >> $fl_dir/provided-symbols
$action $objcopy --strip-unneeded -R .note -R .comment “$src_file” "$dest/$1"
chmod 755 "$dest/$1"
return 0
fi
local pic_objects=get-pic-file "$1"
local extra_flags=get-extra-flags "$1"
if [ “x$pic_objects” = x ] ; then
$verbose 2>&1 No pic archive for library “$1” found, falling back to simple copy.
get-provided-symbols-of-so-lib “$src_file” >> $fl_dir/provided-symbols
get-undefined-symbols “$src_file” >> $fl_dir/undefined-symbols
$action $objcopy --strip-unneeded -R .note -R .comment “$src_file” "$dest/$1"
else
$verbose 2>&1 Make small lib from “$pic_objects” in “$dest/$1”.
# XXX: If ld is NEEDED, we need to include it on the gcc command line
get-library-depends "$src_file" \
| sed -n -e 's/^lib\([^-.]*\)[-.].*/\1/p' > $fl_dir/lib-dependencies
get-provided-symbols $pic_objects > $fl_dir/lib-provided-symbols
# Argument order does matter:
get-common-symbols $fl_dir/lib-provided-symbols \
$fl_dir/undefined-symbols > $fl_dir/lib-symbols-to-include
local soname=`objdump -x $src_file 2>&1 | grep SONAME | awk '{print $2}'`
($verbose && set -x; ${gcc} \
-nostdlib -nostartfiles -shared \
"-Wl,-soname=$soname" \
`cat $fl_dir/lib-symbols-to-include | sed 's/^/-u/'` \
-o $fl_dir/lib-so $pic_objects $extra_flags -lgcc "-L$dest" \
-L`echo $src_path | sed -e 's/::*/:/g' -e 's/^://' -e 's/:$//' \
-e 's/:/ -L/g'` \
`cat $fl_dir/lib-dependencies | sed 's/^/-l/'`) \
&& $objcopy --strip-unneeded -R .note -R .comment $fl_dir/lib-so $fl_dir/lib-so-stripped \
|| {
echo 1>&2 $0: install-small-lib: $gcc or $objcopy failed.
exit 1
}
get-undefined-symbols $fl_dir/lib-so-stripped \
>> $fl_dir/undefined-symbols
get-provided-symbols-of-so-lib $fl_dir/lib-so-stripped >> $fl_dir/provided-symbols
$action cp $fl_dir/lib-so-stripped "$dest/$1"
fi
}
install-libs-in-sphere [LIB1,…]
extracts the libs in a shrinked node and cycles through them until all
possible symbols are resolved.
Always make sure this can be called recursively (from install-libs)!
install-libs-in-sphere () {
if [ $# != 1 ] ; then
echo 1>&2 $0: install-libs-in-sphere: internal error: called with invalid number of arguments
exit 1
fi
Unfortunately, we need a small parser here to do the right thing when
spheres are within spheres etc. RegEx simply can’t count brackets. 
local string=echo "$1" | sed -e 's/^\[//' -e 's/\]$//'
local char
local result=
local depth=0
while [ “x$string” != x ] ; do
# Jump to next special char for faster operation.
# Don’t be confused by the regex, it matches everything but ],[
char=echo $string | sed -e 's/^\([^],[]*\).*$/\1/'
string=echo $string | sed -e 's/^[^],[]*//'
result="$result$char";
# Read special char
char=echo $string | sed -e 's/^\(.\).*$/\1/'
string=echo $string | sed -e 's/^.//'
case “$char” in
[) depth=$(($depth+1));;
]) depth=$(($depth-1));;
,) if [ $depth = 0 ] ; then
char=’ ';
fi;;
esac
result="$result$char";
done
$verbose 2>&1 "RESOLVING LOOP…echo $result | md5sum"
echo XXX: CODE NOT FINISHED
install-libs $result
$verbose 2>&1 "END OF LOOP… echo $result | md5sum"
}
install-libs LIB1 …
goes through an ordered list of libraries and installs them.
Make sure this can be called recursively, or hell breaks loose.
Note that the code is (almost) tail-recursive. I wish I could
write this in Scheme 
install-libs () {
local cur_lib
local lib
for cur_lib in “$@” ; do
if echo “$cur_lib” | grep -q ‘^[’ ; then
install-libs-in-sphere "$cur_lib"
else
lib=find-file $src_path $cur_lib
if [ -L “$lib” ] ; then
lib=basename \readlink $lib``
create-link $lib $dest/$cur_lib
else
install-small-lib $cur_lib
fi
fi
done
}
MAIN PROGRAM
1. Option Processing
2. Data Initialization
3. Graph Construction and Reduction
4. Library Installation
Global Files:
$fl_dir/undefined-symbols
Holds all undefined symbols we consider for inclusion.
Only grows. Does not to be sort’ed and uniq’ed, but will
get occasionally.
$fl_dir/provided-symbols
Holds all defined symbols we included.
Only grows. Should later be a superset of undefined-symbols.
But some weak symbols may be missing!
$fl_dir/library-depends
Queue of all libraries to consider.
1. Option Processing
while :; do
case “$1” in
-L) src_path="$src_path:$2"; shift 2;;
-d|–dest-dir) dest=$2; shift 2;;
-n|–dry-run) action=“echo”; shift;;
-v|–verbose) verbose=“echo”; shift;;
-V|–version) echo “$version”; exit 1;;
-D|–no-default-lib) no_default_libs=“true”; shift;;
-h|–help)
echo "$usage"
echo "Make a set of minimal libraries for FILE … in directory DEST."
echo ''
echo "
Options:
-L DIRECTORY Add DIRECTORY to library search path.
-D, --no-default-lib Do not use default lib directories of $default_src_path
-n, --dry-run Don’t actually run any commands; just print them.
-v, --verbose Print additional progress information.
-V, --version Print the version number and exit.
-h, --help Print this help and exit.
-d, --dest-dir DIRECTORY Create libraries in DIRECTORY.
Required arguments for long options are also mandatory for the short options.“
exit 0;;
-) echo 1>&2 $0: $1: unknown flag; echo 1>&2 “$usage”; echo 1>&2 “$try”; exit 1;;
?) exec=”$exec $1"; shift;;
*) break;;
esac
done
if $no_default_libs; then
src_path=${src_path:-$default_src_path}
else
src_path=${src_path-$default_src_path}
fi
src_path=echo $src_path | sed 's,^:*,,'
if [ “x$exec” = x ] ; then
exit 0
fi
if [ “x$dest” = x ] ; then
echo 1>&2 $0: no destination directory given; echo 1>&2 “$usage”; exit 1
fi
2. Data Initialization
$verbose -n 2>&1 "Initializing data objects… "
Temporary directory.
fl_dir="/tmp/,mklibs.$$"
set -e
mkdir $fl_dir
set +e
trap “rm -fr $fl_dir” EXIT
Intialize our symbol array and library queue with the information
from the executables.
get-undefined-symbols $exec > $fl_dir/undefined-symbols
add-to-queue-if-not-there $fl_dir/library-depends get-library-depends $exec
$verbose 2>&1 “done.”
3.a Graph Construction
Build the dependency graph, add new library dependencies to the queue on
the way.
If the soname is a link, add the target to the end of the queue and
add a simple arrow to the graph.
If the soname is a real lib, get its dependencies and add them to
the queue. Furthermore, add arrows to the graph. If the lib is not
dependant on any other lib, add the node to make sure it is mentioned
at least once in the graph.
$verbose -n 2>&1 “Constructing dependency graph… (”
while cur_lib=get-top-of-queue $fl_dir/library-depends
do
lib=find-file $src_path $cur_lib
if [ -L “$lib” ] ; then
$verbose -n 2>&1 L
lib=basename \readlink $lib`add-to-queue-if-not-there $fl_dir/library-depends "$lib" add-arrow $fl_dir/dependency-graph "$cur_lib" "$lib" else get-library-depends "$lib" > $fl_dir/backup if [ "xhead -1 $fl_dir/backup" = x ] ; then $verbose -n 2>&1 N add-node $fl_dir/dependency-graph "$cur_lib" else $verbose -n 2>&1 A for lib incat $fl_dir/backup` ; do
add-to-queue-if-not-there $fl_dir/library-depends "$lib"
add-arrow $fl_dir/dependency-graph “$cur_lib” "$lib"
done
fi
fi
done
$verbose 2>&1 “) done.”
if [ ! -f $fl_dir/dependency-graph ]; then
echo 1>&2 mklibs: internal error: $fl_dir/dependency-graph not generated
exit 1
fi
3.b Graph Reduction
Find and shrink cycles in the graph.
$verbose -n 2>&1 “Eliminating cycles… (”
while cycle=find-cycle "$fl_dir/dependency-graph" ; do
$verbose -n 2>&1 C
shrink-nodes “$fl_dir/dependency-graph” $cycle
done
$verbose 2>&1 “) done.”
4. Library Installation
Let tsort(1) do the actual work on the cycle-free graph.
tsort $fl_dir/dependency-graph > $fl_dir/backup
Now the ordered list of libraries (or cycles of them)
can be processed by install-libs. This is indeed the last step.
install-libs cat $fl_dir/backup
#sort -u $fl_dir/provided-symbols > $fl_dir/diag1
#sort -u $fl_dir/undefined-symbols > $fl_dir/diag2
#cat $fl_dir/diag1 $fl_dir/diag2 | sort | uniq -u > $fl_dir/diag3
diag3 has now the symmetric difference.
#cat $fl_dir/diag3 $fl_dir/diag2 | sort | uniq -d > $fl_dir/diag1
diag1 has now all undefined symbols that are not provided.
##cat $fl_dir/diag1 | wc
Note that some of these symbols are weak and not having them is probably
not an error.
exit 0
[/code]
Non j’ai pas pu, dans les sources, il n’y a pas de script sh …
Par contre j’ai vu que le paquet mkinitrd-cd le contenait, mais est-ce le même ? et je peux pas l’installer ça va m’enlever des paquets que je veux garder.
salut,
euh, je ne comprend pas ce que tu veux faire.
Concernant mklibs.sh tu ne l’installes pas. Tu l’exécutes.
Ce script me sert à remplir le répertoire lib contenant les bibliothèques nécessaires au fonctionnement des programmes installés dans /bin et /sbin dans le cadre de la création d’un système linux embarqué minimal.
Il ne sert qu’à cela.
ah oui, ben c’est bien ce que je dis, ce script se trouve dans le paquet mkinitrd-cd notamment. donc apt-get install mkinitrd-cd nous le fourni … ça doit être le même, c’est juste ce que je voulais dire …
Bon ok, ça y’est, je viens de relire le post du début, et je ne m’étonne plus de ton étonnement … pardon, je suis à la masse en ce moment.
Salut,
pas de problème. La brume s’est dissipée …
On l’a été je crois plus ou moins ces jours çi.
Cela doit être surement les bulles de champagne …
a++