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Re: PR gdb/856

On Mon, Sep 29, 2008 at 10:17:50AM -0700, Joel Brobecker wrote:
> > Daniel's answer is here, but I never got back to it:
> >  http://sourceware.org/ml/gdb-patches/2008-06/msg00036.html
> 
> PC and block: I don't see why passing the block would be required
> for inlining support - as I understand it, we can always compute
> the actual block from the PC. No?

No.  There can be more than one block at the PC.

Normally this isn't a big deal.  Anything from blocks further out is
visible further in.  There are two exceptions.  One of them is already
a problem and GDB does not support it helpfully: shadowed variables.

{
  int x;
  {
    int x;
    ...
  }
}

The other is more noticeable; inlining.  When you say "up" you move to
the call site.  And the call site might be in a different file, and
have different macros defined.

-- 
Daniel Jacobowitz
CodeSourcery
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