1PATCHELF(1)                      User Manuals                      PATCHELF(1)
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NAME

6       patchelf - Modify ELF files
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SYNOPSIS

10       patchelf OPTION FILE
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DESCRIPTION

14       PatchELF is a simple utility for modifying existing ELF executables and
15       libraries.  It can change the dynamic  loader  ("ELF  interpreter")  of
16       executables and change the RPATH of executables and libraries.
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OPTIONS

20       The single option given operates on a given FILE, editing in place.
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23       --page-size SIZE
24              Uses the given page size instead of the default.
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27       --set-interpreter INTERPRETER
28              Change  the  dynamic  loader  ("ELF  interpreter") of executable
29              given to INTERPRETER.
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32       --print-interpreter
33              Prints the ELF interpreter of the executable.
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36       --print-soname
37              Prints DT_SONAME entry of .dynamic section.  Raises an error  if
38              DT_SONAME doesn't exist.
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41       --set-soname SONAME
42              Sets DT_SONAME entry of a library to SONAME.
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45       --set-rpath RPATH
46              Change the RPATH of the executable or library to RPATH.
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49       --remove-rpath
50              Removes  the  DT_RPATH  or DT_RUNPATH entry of the executable or
51              library.
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54       --shrink-rpath
55              Remove from the RPATH all directories  that  do  not  contain  a
56              library  referenced  by  DT_NEEDED  fields  of the executable or
57              library.
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59              For instance, if an executable references one library libfoo.so,
60              has an RPATH "/lib:/usr/lib:/foo/lib", and libfoo.so can only be
61              found in /foo/lib, then the new RPATH will be "/foo/lib".
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64       --allowed-rpath-prefixes PREFIXES
65              Combined with the "--shrink-rpath" option, this can be used  for
66              further  rpath  tuning.  For  instance,  if an executable has an
67              RPATH "/tmp/build-foo/.libs:/foo/lib", it is probably  desirable
68              to keep the "/foo/lib" reference instead of the "/tmp" entry.
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71       --print-rpath
72              Prints the RPATH for an executable or library.
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75       --force-rpath
76              Forces  the  use of the obsolete DT_RPATH in the file instead of
77              DT_RUNPATH. By default DT_RPATH is converted to DT_RUNPATH.
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80       --add-needed LIBRARY
81              Adds a declared dependency on  a  dynamic  library  (DT_NEEDED).
82              This option can be give multiple times.
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85       --replace-needed LIB_ORIG LIB_NEW
86              Replaces a declared dependency on a dynamic library with another
87              one (DT_NEEDED).  This option can be give multiple times.
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90       --remove-needed LIBRARY
91              Removes a declared dependency on LIBRARY (DT_NEEDED entry). This
92              option can be given multiple times.
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95       --no-default-lib
96              Marks the object that the search for dependencies of this object
97              will ignore any default library search paths.
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100       --debug
101              Prints details of the changes made to the input file.
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104       --version
105              Shows the version of patchelf.
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AUTHOR

109       Eelco Dolstra <e.dolstra@tudelft.nl>
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SEE ALSO

113       elf(5), ld.so(8)
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119PATCHELF                           JUNE 2010                       PATCHELF(1)