1PATCHELF(1)                      User Manuals                      PATCHELF(1)
2
3
4

NAME

6       patchelf - Modify ELF files
7
8

SYNOPSIS

10       patchelf OPTION FILE ...
11
12

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.
17
18

OPTIONS

20       The single option given operates on each FILE, editing in place.
21
22
23       --page-size SIZE
24              Uses the given page size instead of the default.
25
26
27       --set-interpreter INTERPRETER
28              Change  the  dynamic  loader  ("ELF  interpreter") of executable
29              given to INTERPRETER.
30
31
32       --print-interpreter
33              Prints the ELF interpreter of the executable.
34
35
36       --print-soname
37              Prints DT_SONAME entry of .dynamic section.  Raises an error  if
38              DT_SONAME doesn't exist.
39
40
41       --set-soname SONAME
42              Sets DT_SONAME entry of a library to SONAME.
43
44
45       --set-rpath RPATH
46              Change the RPATH of the executable or library to RPATH.
47
48
49       --remove-rpath
50              Removes  the  DT_RPATH  or DT_RUNPATH entry of the executable or
51              library.
52
53
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.
58
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".
62
63
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.
69
70
71       --print-rpath
72              Prints the RPATH for an executable or library.
73
74
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.
78
79
80       --add-needed LIBRARY
81              Adds a declared dependency on  a  dynamic  library  (DT_NEEDED).
82              This option can be give multiple times.
83
84
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.
88
89
90       --remove-needed LIBRARY
91              Removes a declared dependency on LIBRARY (DT_NEEDED entry). This
92              option can be given multiple times.
93
94
95       --no-default-lib
96              Marks the object that the search for dependencies of this object
97              will ignore any default library search paths.
98
99
100       --output FILE
101              Set the output file name.  If not specified, the input  will  be
102              modified in place.
103
104
105       --debug
106              Prints details of the changes made to the input file.
107
108
109       --version
110              Shows the version of patchelf.
111
112

AUTHOR

114       Eelco Dolstra <e.dolstra@tudelft.nl>
115
116

SEE ALSO

118       elf(5), ld.so(8)
119
120
121
122
123
124PATCHELF                           JUNE 2010                       PATCHELF(1)