user instruction tracing patch?

[Frank Ch. Eigler]

Hi, Roland -

On Wed, Nov 14, 2007 at 03:38:25PM -0800, Roland McGrath wrote:

> [...]  What I find opaque in a way I don't like is the idea that I
> might need to go through every probe and function body looking for
> things that might modify "foo" to know when that means "trigger
> enabling/disabling itrace", [...]

But there wouldn't be that many probes in an ordinary hand-written
script.  Most fit on a page or two, so finding the control variables
would be doable "by inspection".

- FChE