[dtrace-discuss] Asynchronous signal handling in fasttrap provider

[Adam Leventhal]

On Mon, Feb 19, 2007 at 01:29:24PM +0900, Saravanan S wrote:
> Firstly, i am interested in knowing the internals of Dtrace. I am also 
> trying to investigate how much easy it is to port Dtrace on a different
> architecture or a OS apart from SPARC/x86.

Did you have a particular architecture or OS in mind?

> I tried to find the Xray source code,
> but i was not able to. I am not sure whether the Xray  code is open or not.

I imagine the Xray code won't be made public, but the changes to CDDL files
certainly should be once Apple ships derived binaries.

> It would be nice if
> you, the dtrace community and the Apple Dtrace team can
> share your thoughts about porting Dtrace to a different
> architecture/OS, the possible pitfalls that could
> be encountered etc.,

At one point the Apple team had made noises about putting together a porting
guide. I don't think there's been any progress, but perhaps if they're asked
nicely they could be persuaded to put something together.

Adam

-- 
Adam Leventhal, Solaris Kernel Development       http://blogs.sun.com/ahl