Re: using link map to go from address to symbol

[Nick Clifton <nickc at redhat dot com>]

Hi Michael,

> I'm looking to go from addresses to symbols.  In the past, I've used
> addr2line to go from program addresses back to their corresponding
> location in source.  But I'm in a circumstance now where I have a
> stripped executable with a (pretty large - ~30MB) link map.  I'd like to
> be able to use the link map to at least get to function or routine
> names,

Why ?  What is wrong with continuing to use the addr2line tool ?  After 
all this is exactly what it is designed for.

> assuming they haven't been optimized away.  So far, I've been
> manually searching through the link map to try to figure out what the
> address corresponds to in my source.  But I'm wondering if there isn't
> an easier or more automated way of going backwards with that link map.
> Is there some tool similar to addr2line that will work on maps instead
> of executables?

There is no such tool.  Well at least not one known to this project. 
But this sounds like the kind of task that would be particularly well 
suited to one of the scripting languages.  You might try writing a Perl 
script to parse the map file and create an associative array of 
addresses and symbol names.

Cheers
  Nick