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Re: [PATCH 2/3] Implement new features needed for handling SystemTap probes
>>>>> "Mark" == Mark Kettenis <mark.kettenis@xs4all.nl> writes:
Tom> sdt.h is really more like an ELF feature.
Mark> Can you elaborate on that? I've googled around a bit but didn't
Mark> really find anything that describes how SystemTap works; only stuff
Mark> that describes how great it is and how it can be used. I did notice
Mark> that DTrace uses a header file with that name as well, but it seems
Mark> that the interfaces defined in the DTrace sdt.h are completely
Mark> different from the SystemTap one.
Yeah, sorry. That was too brief.
The static probes in this case are intended to be source- (but not
binary-) compatible with DTrace. They are implemented entirely in a
header file (technically two headers but one is of the "config.h"
variety) and assume ELF and GCC.
The header is independent of SystemTap proper; it just came from the
SystemTap project and so it is maintained in that source repository.
There's been some talk that it will be used as the basis for UST markers
as well, but AFAIK this work hasn't happened yet.
I don't know of any barrier to this header working as-is on other
ELF+GCC platforms. I haven't tried it myself.
If you still want this in the Linux tdep files, I suppose it can be
done.
Tom