RE: Adding platform extensions?

["Dan Guisinger" <danrg at mn dot mediaone dot net>]

Debugging info?
hmm...that would work, to some extent....I don't want the final executable
to have debugging info taked in
too bloated....

Here is how my binaries are layed out:
---------
Image Header  (Currently PE, looking at ELF)
---------
Object Table
---------
Interface Table
---------
Compiled Code

currently to come up with that it is very redundant and there are some
pitfalls to a clumbersom programming style like that.  BUT, the
object/interface technologies in the kernel work great so I don't plan on
changing them to adapt a different approach....I need compiler tools
modified so that they work with the original idea.

Now, back to my original question back a few days ago.
If I were to go about adding support to the compiler, how would I do this?
I see table upon table of numbers in the parsing engine....this code appears
alien in nature, anyone want to give me hints at what I would try?

Of course, if anyone wants in on my OS project and wants to help organize a
small porting group for making the tools, I'd obviously give all the
information I need to assist and try to help out too, but I am not expecting
this.

-Dan

-----Original Message-----
From: Jamie Lokier [mailto:jamie.lokier@cern.ch]
Sent: Tuesday, November 16, 1999 9:43 AM
To: Dan Guisinger
Cc: 'Mike Stump'; gcc@gcc.gnu.org
Subject: Re: Adding platform extensions?


Dan Guisinger wrote:
> One of the reason I don't think that C++ can do it on its own is that the
> structures store more than just a Vtbl, they have several SwCom specific
> data structures in front of it which are hidden to the programmer but
exist
> to track the object, all interface instances, and other data that is
related
> to upkeep of the SwCom subsys and integrety of the system.

I have a similar problem trying to get decent garbage collection...

> So, how about this:
> Is there a way where I can pull the size of a structure from a OBJ file,
if
> the structure is not created statically?
> That is, if the structure is atleast defined, does its size get stored
into
> the OBJ file so it can be externally referenced?

All the information should be available as debugging info.  Just compile
with debugging on.

-- Jamie