Re: [DynInst_API:] Call Redirection to a Library Function

[Sergej Proskurin <prosig@xxxxxxx>]

Dear Bill,

On 29.04.2014 17:44, Bill Williams wrote:
> Should still work (that's the point of loadLibrary). Everything that 
> falls under a single BPatch_binaryEdit is fair game to use. 
I am still trying to redirect a call from a binary blob exit edge of the 
type "EdgeTypeEnum::CALL" to a function included within a library, which 
is loaded with help of "loadLibrary()". The function in question can be 
successfully found - but the actual process of edge redirection 
(PatchModifier::redirect) fails, since the successfully found function 
address needs first to be relocated. For testing purposes, I have tried 
to redirect the edge to a function of the initial program: this works 
without any problems.
The currently implemented redirection process fails, since it tries to 
access the BaseAddress of the function - which is probably simply an 
offset within the module - and hence aborts redirection. My question is 
whether there is a possibility to manually relocate the function so that 
it would be possible to access it within the main address space of the 
binary?
Thank you.

Best regards,
Sergej