[Toybox] sstrip/elftrunc

[Frank Bergmann]

Hi.

On Wed, Feb 08, 2012 at 07:53:44PM -0600, Rob Landley wrote:
> semi-universal container format it's not what macosx uses and lots of

If it's not elf then it does nothing. :-)

> Hmmm, elftrunc doesn't seem to have a web page butsstrip does. (Hey,
> muppet labs!  The teensy elf page is a classic.  Ok, that's worth a look...)

*lol*
Yeah, muppet labs, a good starting point to get deep knowledge.

A few years ago I searched for the origin of sstrip. IMHO the original
author didn't maintain it any more and the last changes were done in
upx-2.02. See
http://www.tuxad.com/sstrip.html
In my projects I have local copies of it and it is build and used from
within my makefiles.
Important is a small patch:
-        ESET(ehdr->e_shentsize,0); \
+        ESET(ehdr->e_shentsize,sizeof(Elf ## CLASS ## _Shdr)); \
If you set e_shentsize to zero you'll got a "corrupted section header size"
message when using "file" on a sstripped binary.

Frank

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