[cfe-dev] absolute locations of functions?

[ret val]

Is there a separate flag to use so locations are printed in nm? The only
relevant flag I have seen in the man page is -cppgen=functions and that does
not show addresses.

Thanks again

On Tue, Jun 7, 2011 at 1:41 PM, David Chisnall <csdavec at swan.ac.uk> wrote:

> On 7 Jun 2011, at 18:11, ret val wrote:
>
> > Is there anyway to write a pass/plugin so I can print the locations of
> all functions? Can anything run after the linker? I'm not sure what I should
> be reading up on to tackle this.
>
> If you mean their location in the resulting binary, then you don't need a
> plugin to do this: the nm utility will do it for you.  It will print the
> location of all symbols, but you can use the example clang plugin to print
> the names of all functions and then use this to filter the output of nm.
>
> If you mean that location in the address space of a running program, then
> this is not possible with a clang plugin, because this location is not
> defined until after the program / library has been loaded, and on modern
> systems will be randomised on each program run as a security precaution.
>
> David
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