static probes

[Frank Ch. Eigler]

Hi -

jrs wrote:

> [...]  Would it be possible for SystemTap to check for the
> availability of a static probe before reverting to kprobing a kernel
> function?  [...]

That is, have systemtap substitute a function/statement() probe with a
mark() probe if one happens to be nearby?  It may be possible, though
the mapping is not exact.  For example, pt_regs* would not be
conveniently available in the latter case, so arbitrary $target
variables could be unavailable.

- FChE