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decompile elf file

 
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NoobWithBoobs



Joined: 16 Jul 2008
Posts: 23
PostPosted: Thu Jul 17, 2008 2:23 pm    Post subject: decompile elf file Reply with quote
seeing as you can compile a bunch of files into an .elf,is there a program to seperate/decompile an elf file back to all those individual files?
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Thu Jul 17, 2008 2:31 pm    Post subject: Re: decompile elf file Reply with quote
NoobWithBoobs wrote:
seeing as you can compile a bunch of files into an .elf,is there a program to seperate/decompile an elf file back to all those individual files?


I ate a chicken burger and some fries today. Is there any way I can throw up the original ingredients in the same form they were before I ate them? No? Didn't think so. :)

In much same manner, there's no way to decompile a program back into the original C/C++ and h files. All you get is vomit (assembly language).

Pretty graphic, but it's an apt description. If you could recover the original files by decompiling, reverse engineering would be simple, not the art form it really is.
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LBGSHI



Joined: 07 Aug 2006
Posts: 136
PostPosted: Thu Jul 17, 2008 10:51 pm    Post subject: Reply with quote
Heh, there is Hanimar's disassembler (PS2Dis), which will, as J.F noted, vomit a mass of ASM at you, and for other brands of executables, there have been various attempts at "decompilers", all of which have been erratic and only partially functional (and I've never seen one produce code that would recompile, let alone recompile into a functional product).
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misfire



Joined: 06 Sep 2004
Posts: 120
Location: Germany
PostPosted: Thu Jul 17, 2008 11:47 pm    Post subject: Reply with quote
IDA Pro is by far the best disassembler I've seen so far: http://www.hex-rays.com/idapro/

Unfortunately, it's quite expensive.
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LBGSHI



Joined: 07 Aug 2006
Posts: 136
PostPosted: Fri Jul 18, 2008 12:06 am    Post subject: Reply with quote
Yes, it's true that IDA Pro is great. However, I believe only the Advanced version includes MIPS r5900l support, and if I remember correctly, Advanced costs in the thousands.
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misfire



Joined: 06 Sep 2004
Posts: 120
Location: Germany
PostPosted: Fri Jul 18, 2008 10:41 pm    Post subject: Reply with quote
As for decompiling, this looks very promising: http://www.hex-rays.com/decompiler.shtml

Though it currently only supports 32-bit x86 code.
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NoobWithBoobs



Joined: 16 Jul 2008
Posts: 23
PostPosted: Fri Aug 01, 2008 8:00 am    Post subject: Reply with quote
wow j.f.,
i dont know if i should be offended,but that was a pretty funny analogy
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LBGSHI



Joined: 07 Aug 2006
Posts: 136
PostPosted: Fri Aug 01, 2008 1:30 pm    Post subject: Reply with quote
I think that was J.F. being cordial :)
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stinkee2



Joined: 04 Jan 2009
Posts: 8
PostPosted: Sun Jan 04, 2009 2:39 pm    Post subject: I have IDA pro Advanced v 5.0 Reply with quote
I registered just to say that I have Ida Pro Advanced 5 and I would like to help...

...if possible
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anmabagima



Joined: 01 Oct 2009
Posts: 96
PostPosted: Wed Dec 30, 2009 2:11 am    Post subject: Reply with quote
Hi,

are you still part of this forum ? If this is tha case would you be able to help in decompile PSP .O files into somehow readable code, asm or what ever, as I've completely deleted my cpp sources due to an typo in my makefile.

Thanks..
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Ozqi



Joined: 23 Jan 2010
Posts: 4
Location: Sweden
PostPosted: Mon Jan 25, 2010 5:30 pm    Post subject: Reply with quote
anmabagima wrote:
Hi,

are you still part of this forum ? If this is tha case would you be able to help in decompile PSP .O files into somehow readable code, asm or what ever, as I've completely deleted my cpp sources due to an typo in my makefile.

Thanks..


I think you should be looking into file recovery programs. Never tried one myself but I bet there's a ton out there that are easy to use. Download one and hope that the sectors of your hdd that once contained the files haven't been overwritten. If they're still there this will be an extremely easier way to solve your problem than trying to decompile your elf.
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