Re: [DynInst_API:] Cross-Platform Binary Analysis

[Stefan Stattelmann <stefan.stattelmann@xxxxxxxxxx>]

Hi Bill,

compiling with $PLATFORM set to ppc32_linux
did the trick.

Another issue I ran into was that bare-metal
PowerPC code does not seem to work. As far as I could reconstruct the problem,
loading the ELF data section produces an error somewhere in Object-elf.C.
No problem with PowerPC Linux binaries
though.

Thanks for your help.

Stefan



From:      
 Bill Williams <bill@xxxxxxxxxxx>
To:      
 dyninst-api@xxxxxxxxxxx,

Date:      
 24.09.2013 17:28
Subject:    
   Re: [DynInst_API:]
Cross-Platform Binary Analysis
Sent by:    
   "Dyninst-api"
<dyninst-api-bounces@xxxxxxxxxxx>

---

On 09/24/2013 07:34 AM, Stefan Stattelmann wrote:
> Hi,
>
> I would like to use Dyninst for cross-platform binary analysis, e.g.,
> analyzing PowerPC code on a x86 machine. Is this currently supported
and
> if so, how? From my experiments so far it seems like binaries for
a
> different CPU architectures are not recognized automatically and thus
> cannot be decoded.
>
> Thanks and best regards,
> Stefan
>
Stefan--

The support for this is limited, but if you're looking for binary 
analysis and not instrumentation, it shouldn't be too hard to get it 
working. I believe, as a first approximation, that if you build the 
analysis components (symtab, instructionapi, parseapi, dataflowapi) with
your $PLATFORM set to your target architecture, that should give you 
components that can analyze cross-architecture binaries (but not native
ones). (Note: it is likely that there will be some kinks to work out 
there; if/when you run into trouble, please let us know.)

Improving this support has long been on our TODO list; the right thing
is to get rid of any lingering per-architecture conditional compilation
and properly abstract the platform-specific bits into classes (with 
machinery to auto-detect, as you note). This could happen for 9.0 but 
almost certainly not for 8.2.

>
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> Dyninst-api@xxxxxxxxxxx
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>


-- 
--bw

Bill Williams
Paradyn Project
bill@xxxxxxxxxxx
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