From: Olivier Andrieu <andrieu@ijm.jussieu.fr>
To: "Yaron M. Minsky" <yminsky@CS.Cornell.EDU>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Debugging mixed ocaml/C code
Date: Thu, 12 Sep 2002 12:09:48 +0200 [thread overview]
Message-ID: <15744.26604.455603.844746@akasha.ijm.jussieu.fr> (raw)
In-Reply-To: <3D7FF8BA.6080508@cs.cornell.edu>
Yaron M. Minsky [Wednesday 11 September 2002] :
> Instead, it segfaults in a predictable place in the ocaml code
> instead. (Surprisingly, it segfaults in the same place if I compile to
> native code or bytecode.)
Why is it surprising ? It probably means your C stub returns a
non-block value and caml thinks it's a block value (and when it tries
to access the block, it gets a segfault). Or it could be a block that
was allocated with a wrong size, etc.
You could use a generic function (using Obj) to print the actual
structure of the returned value (block/long, nb of fields, tag, etc).
--
Olivier
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next prev parent reply other threads:[~2002-09-12 10:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-12 2:15 Yaron M. Minsky
2002-09-12 10:09 ` Olivier Andrieu [this message]
[not found] ` <15744.40944.948274.528474@monkey.x.aarg.net>
2002-09-12 17:31 ` Yaron M. Minsky
2002-09-18 19:45 ` Yaron M. Minsky
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