https://github.com/pwaller/goupx

Fix golang compiled binaries on x86_64 so that they can be packed with UPX
https://github.com/pwaller/goupx

Last synced: 28 days ago
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Fix golang compiled binaries on x86_64 so that they can be packed with UPX

• Host: GitHub
• URL: https://github.com/pwaller/goupx
• Owner: pwaller
• License: mit
• Created: 2012-09-08T14:17:20.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2017-01-20T16:35:14.000Z (almost 8 years ago)
• Last Synced: 2024-02-15T05:34:33.730Z (10 months ago)
• Language: Go
• Size: 13.7 KB
• Stars: 332
• Watchers: 19
• Forks: 20
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• cybersecurity-golang-security - goupx - Fix golang compiled binaries on x86_64 so that they can be packed with UPX. (Packers / Obfuscators)
• awesome-go-security - goupx - Fix golang compiled binaries on x86_64 so that they can be packed with UPX. (Packers / Obfuscators)

README

        
goupx - Fix golang Linux ELF executables to work with upx

---------------------------------------------------

## Update: 2016/03/10

As far as I (pwaller) know, goupx is no longer necessary for Linux binaries since it was fixed in

go1.6.

## About

Installation: `go get github.com/pwaller/goupx`

(or if you don't want to do it with root, `GOPATH=${HOME}/.local go get github.com/pwaller/goupx` will install it to `${HOME}/.local/bin/goupx`).

Usage: `goupx [filename]`

Fixes the `PT_LOAD` offset of [filename] and then runs `upx`.

This is only necessary for Linux ELF executables (not Mach-O executables or windows binaries, for example).

Based on [code found on the upx bugtracker](http://sourceforge.net/tracker/?func=detail&atid=102331&aid=3408066&group_id=2331).

MIT licensed.

Fixes the following issue

=========================

    $ upx [linux ELF go binary]

                           Ultimate Packer for eXecutables

                              Copyright (C) 1996 - 2011

    UPX 3.08        Markus Oberhumer, Laszlo Molnar & John Reiser   Dec 12th 2011

            File size         Ratio      Format      Name

       --------------------   ------   -----------   -----------

    upx: goupx: EOFException: premature end of file                                

    Packed 1 file: 0 ok, 1 error.

Typical compression ratio

=========================

Resulting filesizes are typically 25% of the original go executable. Your mileage my vary.