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Re: What's an annex? stratum?
Stan Shebs wrote:
Michael Eager wrote:
"Annex" is apparently an introduction of Andrew's from 2004, does kind
of look like an address space addition, although not clear that it's
Looking at target.c, I see some terms which are less
than clear: annex and stratum. Could someone tell me
what these mean?
I'm assuming that the XML target description in the docs is similarly
incomplete and/or obsolete.
There seems to be a fair amount of cruft in the code, and
even more in the documentation. Sigh.
"Stratum" is an old concept, merely a way to talk about different levels
of the target stack. In practice, the stacking concept isn't as clean as
it must have seemed initially; sometimes you really want to run a target
op in a vector down in the stack, sometimes you want to replace a target
vector in the middle. So we introduce strata as a way to find a
mid-stack target vector of a desired type. First big block comment in
target.h goes into a bit more detail.
I read the comments, but it doesn't really say what the target stack is.
I see the enum for different strata, giving a hierarchy.
I can see that you might layer a core file on top of an executable
file, so that searching for a symbol/address was passed down until
you found the one which contained it. But how does thread/process/
download fit into this picture?
Michael Eager firstname.lastname@example.org
1960 Park Blvd., Palo Alto, CA 94306 650-325-8077