Re: arm literal pool

[Andrew Haley <aph at redhat dot com>]

ranjith kumar wrote:

> 1)   Given an ARM executable, how to know weather a given address
> contains  an 'arm instruction' or 'literal pool' ??

You can't, as they're interspersed.  The best you can hope to do is
track the control flow from the entry point.

> 2) What happens when we strip that binary?  Can we still determine
> whether given address contains  an 'arm instruction' or 'literal
> pool'?
> 
> 3)Can    libelf/libdwarf libraries  determine  whether given address
> contains  an 'arm instruction' or 'literal pool'  even after that
> library has been stripped? Where can I find sample programs which uses
> libelf/libdwarf libraries and will tell  whether given address
> contains  an 'arm instruction' or 'literal pool' ?
> 
> 4) How debuggers build control flow graph from an executable, when
> 'literal pool' appears in between 'instructions'?

Start from the entry point, and find everything reachable.

Andrew.