[issue13405] Add DTrace probes

[Frank Ch. Eigler]

Frank Ch. Eigler <fche at elastic.org> added the comment:

> Stan, anybody working in SystemTap support, could you possibly
> create a new issue in the tracker to track specifically stap
> support?. You can depend on this bug, and coordinate effort. Clone
> my repository and use it as base.

I believe the only remotely-systemtap-specific stuff we suggested
would be useful would be the addition of that PyEval_GetFrame() value
as an extra argument for function entry/exit sdt.h calls.

I believe your patch already apprx. works against systemtap (and in
fact many dtrace idiosyncracies like asm("nop") are unnecessary here),
except for the inclusion of the /usr/bin/dtrace -G-generated header
file, as mentioned in <http://bugs.python.org/issue13405#msg149054>.

Do you think it is necessary to track that in a separate bug?

- FChE

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