tracepoint maintainance models

Frank Ch. Eigler fche@redhat.com
Mon Sep 18 19:40:00 GMT 2006


Hi -

On Mon, Sep 18, 2006 at 08:49:40PM +0100, Alan Cox wrote:
> [...]
> Then what we really need by the sound of it is enough gcc smarts to do
> something of the form [...]
> 	.section "debugbits"
> [...]
> Can gcc do any of that for us today ?

This is not that different from what gcc does for DWARF.  Trouble is,
there appear to exist optimization transformations which make such
data difficult or impossible to generate.  (In particular, it is
unlikely to be easier to create specialized data like this if the
compiler can't be made to create first-class DWARF for the same probe
points / data values.)

- FChE
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