On Feb 26, 2013, at 5:42 AM, E.Robbins <[email protected]> wrote:
> I'm using the ParseAPI and I'd like to access the raw bytes of certain
> blocks/functions, I'm not sure if there is a way to do this with DynInst
> already?
There is, but it's a little obtuse. Here's some code that gets a raw byte
pointer for a ParseAPI::Block:
ParseAPI::Block *block;
Offset off = block->start();
const unsigned char *ptr =
(const unsigned char *) (block->region()->getPtrToInstruction(off));
> If there isn't, I was looking for something that can translate the memory
> addresses of blocks/functions back in to file offsets? I see a lot of code
> for address translation, but I'm don't think I've found what I'm looking for.
The address translation code is mapping from a virtual offset in a file to an
address in memory, taking into account the base address a library was loaded
at. So that's not what you want. I believe that the SymtabAPI::Region class has
a virtual->physical mapping, but if you use the code above you shouldn't have
to deal with that.
Drew
>
> Any pointers would be great.
>
> Thanks,
> Ed
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--
Andrew Bernat
Paradyn Project
[email protected]
http://www.cs.wisc.edu/~bernat
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