Augment compiled file

[Joern Rennecke]

> I'm trying to build a bidirectional debugger, and the
> first step is to augment the output that gcc generates
> to
> include a call to a function after each source line
> compiled.
>
> Does anybody knows where should I start looking to
> make
> this change to gcc?  

search for emit_line_note in the sources.

>                      Is there any magical/hidden
> option in 
> gcc right now that will do that?

No, there isn't.

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