superstrip

superstrip - strip an ELF executable of all unmapped information

David Madore's superstrip, as a single C file suitable for compilation with skalibs. superstrip is a very aggressive ELF stripping utility.

History

Written by David Madore david.madore@ens.fr
Modified by Laurent Bercot ska-skaware@skarnet.org
- for use with skalibs
Modified by Berney to compile against current skalibs
- Added a Makefile
First version: 2002-09-03
Laurent's version: 2011-06-28
This version: 2017-02-15

License and No Warranty

This project is in the Public Domain -- David Madore, Laurent Bercot, Berney
However, I kindly request that any copy of this program that is modified by someone other than myself be clearly labeled as such in the comments above, and use a distinguishing tag on the version string above; or else be called by some other name than "superstrip".
This program comes with ABSOLUTELY NO WARRANTY. Use at your own risk.
This version is still in ALPHA stage of development!

How to Use

Syntax is: superstrip [file]

[file] must be a seekable ELF file, and this is only useful for an executable, possibly only for a statically linked executable. It will be copied to a temporary file, but only those parts which are mapped in memory upon loading will be kept: all other data, such as symbol names, section names, section tables, debugging information, etc, are discarded. Thus, this is like the "strip" operation, but even more radical. The primary author advises you to use this program only in situations where disk space is extremely scarce (e.g. on a floppy). Note that this will not gain you any space in memory, by definition.

Some important caveats:

Do not use on object files, nor on dynamic libraries with which you intend to link (I mean ld-link, not run-time link), this would make them useless. Use on dynamic libraries only intended for run-time link, or on dynamically linked executable, appears to work in some situations, but this is by no means guaranteed (of course, nothing about this program is guaranteed anyway, see above) and strongly discouraged. Only 32-bit ELF is supported at the moment. Support for 64-bit ELF is intended in a future version. Only native endianness is supported. That is, the program will only treat ELF files made for a machine with the same endianness as that on which it runs. This has not been extensively tested yet and many bugs are probably still lurking.

License

berney/superstrip

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