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Date:      Wed, 12 May 1999 19:07:01 +1000 (EST)
From:      John Birrell <jb@cimlogic.com.au>
To:        dfr@nlsystems.com (Doug Rabson)
Cc:        jb@cimlogic.com.au, current@freebsd.org
Subject:   Re: Debugging uthreads
Message-ID:  <199905120907.TAA25926@cimlogic.com.au>
In-Reply-To: <Pine.BSF.4.05.9905120944480.385-100000@herring.nlsystems.com> from Doug Rabson at "May 12, 1999  9:48:43 am"

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Doug Rabson wrote:
> That would work. I think I only need uniqueid, sig_saved,
> saved_sigcontext, saved_jmpbuf, state and nxt. If those guys were lumped
> up at the start of struct pthread (possibly in another struct so that gdb
> doesn't need to know sizeof(struct pthread)) and marked appropriately then
> the debugger interface would be quite stable.

I'd be inclined to add the magic number too, because it gives a hint
as to whether the structure refers to a valid thread. If the thread
is destroyed, the magic number is trashed.

I think it is worth adding a new header file defining such a structure.

-- 
John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/
CIMlogic Pty Ltd, GPO Box 117A, Melbourne Vic 3001, Australia +61 418 353 137


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