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License: GNU General Public License v3.0
PatchELF is a simple utility for modifing existing ELF executables and libraries. In particular, it can do the following: * Change the dynamic loader ("ELF interpreter") of executables: $ patchelf --set-interpreter /lib/my-ld-linux.so.2 my-program * Change the RPATH of executables and libraries: $ patchelf --set-rpath /opt/my-libs/lib:/other-libs my-program * Shrink the RPATH of executables and libraries: $ patchelf --shrink-rpath my-program This removes from the RPATH all directories that do not contain a library referenced by DT_NEEDED fields of the executable or library. For instance, if an executable references one library libfoo.so, has an RPATH "/lib:/usr/lib:/foo/lib", and libfoo.so can only be found in /foo/lib, then the new RPATH will be "/foo/lib". * Remove declared dependencies on dynamic libraries (DT_NEEDED entries): $ patchelf --remove-needed libfoo.so.1 my-program This option can be given multiple times. * Add a declared dependency on a dynamic library (DT_NEEDED): $ patchelf --add-needed libfoo.so.1 my-program This option can be give multiple times. * Replace a declared dependency on a dynamic library with another one (DT_NEEDED): $ patchelf --replace-needed liboriginal.so.1 libreplacement.so.1 my-program This option can be give multiple times. AUTHOR Copyright 2004-2016 Eelco Dolstra <[email protected]>. LICENSE 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 3 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, see <http://www.gnu.org/licenses/>. HOMEPAGE http://nixos.org/patchelf.html BUGS The `strip' command from binutils generated broken executables when applied to the output of patchelf (if `--set-rpath' or `--set-interpreter' with a larger path than the original is used). This appears to be a bug in binutils (http://bugs.strategoxt.org/browse/NIXPKGS-85). RELEASE HISTORY 0.9 (February 29, 2016): * Lots of new features. Please refer to the Git commit log: https://github.com/NixOS/patchelf/commits/master This release has contributions from Aaron D. Marasco, Adrien Devresse, Alexandre Pretyman, Changli Gao, Chingis Dugarzhapov, darealshinji, David Sveningsson, Eelco Dolstra, Felipe Sateler, Jeremy Sanders, Jonas Kuemmerlin, Thomas Tuegel, Tuomas Tynkkynen, Vincent Danjean and Vladimír Čunát. 0.8 (January 15, 2014): * Fix a segfault caused by certain illegal entries in symbol tables. 0.7 (January 7, 2014): * Rewrite section indices in symbol tables. This for instance allows gdb to show proper backtraces. * Added `--remove-needed' option. 0.6 (November 7, 2011): * Hacky support for executables created by the Gold linker. * Support segments with an alignment of 0 (contributed by Zack Weinberg). * Added a manual page (contributed by Jeremy Sanders <[email protected]>). 0.5 (November 4, 2009): * Various bugfixes. * `--force-rpath' now deletes the DT_RUNPATH if it is present. 0.4 (June 4, 2008): * Support for growing the RPATH on dynamic libraries. * IA-64 support (not tested) and related 64-bit fixes. * FreeBSD support. * `--set-rpath', `--shrink-rpath' and `--print-rpath' now prefer DT_RUNPATH over DT_RPATH, which is obsolete. When updating, if both are present, both are updated. If only DT_RPATH is present, it is converted to DT_RUNPATH unless `--force-rpath' is specified. If neither is present, a DT_RUNPATH is added unless `--force-rpath' is specified, in which case a DT_RPATH is added. 0.3 (May 24, 2007): * Support for 64-bit ELF binaries (such as on x86_64-linux). * Support for big-endian ELF binaries (such as on powerpc-linux). * Various bugfixes. 0.2 (January 15, 2007): * Provides a hack to get certain programs (such as the Belastingaangifte 2005) to work. 0.1 (October 11, 2005): * Initial release.
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