* [Caml-list] disassembling cmo files
@ 2005-12-07 7:45 Jonathan Roewen
2005-12-07 8:55 ` basile
0 siblings, 1 reply; 5+ messages in thread
From: Jonathan Roewen @ 2005-12-07 7:45 UTC (permalink / raw)
To: caml-list
Hi,
How can I disassemble a .cmo into something useful? I think such a
tool would prove useful to me for understanding exactly how bytecode
works, esp wrt to interactions with the garbage collector.
Jonathan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Caml-list] disassembling cmo files
2005-12-07 7:45 [Caml-list] disassembling cmo files Jonathan Roewen
@ 2005-12-07 8:55 ` basile
2005-12-07 9:52 ` David Baelde
0 siblings, 1 reply; 5+ messages in thread
From: basile @ 2005-12-07 8:55 UTC (permalink / raw)
To: Jonathan Roewen; +Cc: caml-list
> How can I disassemble a .cmo into something useful?
IIRC, the ocaml/tools directory (from Ocaml CVS)
contains a dumpobj.ml which should do it.
--
Basile Starynkevitch http://starynkevitch.net/Basile/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Caml-list] disassembling cmo files
2005-12-07 8:55 ` basile
@ 2005-12-07 9:52 ` David Baelde
2005-12-07 10:02 ` Jonathan Roewen
2005-12-07 10:11 ` Oliver Bandel
0 siblings, 2 replies; 5+ messages in thread
From: David Baelde @ 2005-12-07 9:52 UTC (permalink / raw)
To: basile; +Cc: Jonathan Roewen, caml-list
Hi,
A simple and interesting way to learn about the bytecode is the
-dinstr option of ocamlc and ocaml toplevel. It dumps a human-readable
version of the produced bytecode. Similarly, there is -dlambda.
--
David
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Caml-list] disassembling cmo files
2005-12-07 9:52 ` David Baelde
@ 2005-12-07 10:02 ` Jonathan Roewen
2005-12-07 10:11 ` Oliver Bandel
1 sibling, 0 replies; 5+ messages in thread
From: Jonathan Roewen @ 2005-12-07 10:02 UTC (permalink / raw)
To: david.baelde; +Cc: caml-list
On 12/7/05, David Baelde <david.baelde@gmail.com> wrote:
> Hi,
>
> A simple and interesting way to learn about the bytecode is the
> -dinstr option of ocamlc and ocaml toplevel. It dumps a human-readable
> version of the produced bytecode. Similarly, there is -dlambda.
Yes, I've used that before, but those are pseudo instructions .. not
what actually goes into a bytecode file I believe.
> IIRC, the ocaml/tools directory (from Ocaml CVS)
> contains a dumpobj.ml which should do it.
I tried compiling, but it complains about an undefined field in
debug_event, line 391 (ocaml3.09.0).
Jonathan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Caml-list] disassembling cmo files
2005-12-07 9:52 ` David Baelde
2005-12-07 10:02 ` Jonathan Roewen
@ 2005-12-07 10:11 ` Oliver Bandel
1 sibling, 0 replies; 5+ messages in thread
From: Oliver Bandel @ 2005-12-07 10:11 UTC (permalink / raw)
To: caml-list
On Wed, Dec 07, 2005 at 10:52:25AM +0100, David Baelde wrote:
> Hi,
>
> A simple and interesting way to learn about the bytecode is the
> -dinstr option of ocamlc and ocaml toplevel. It dumps a human-readable
> version of the produced bytecode. Similarly, there is -dlambda.
Both are very nice features but are a) undocumented and b) work
on the ml-file, not the cmo-files.
To have access to a cmo-file... well... IMHO maybe could be used to
combine Ocaml-stuff with other languages... e.g. dynamically loading
*.cmo's into C-programs...
(...should be possible to do that?!)
Ciao,
Oliver
^ permalink raw reply [flat|nested] 5+ messages in thread
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2005-12-07 7:45 [Caml-list] disassembling cmo files Jonathan Roewen
2005-12-07 8:55 ` basile
2005-12-07 9:52 ` David Baelde
2005-12-07 10:02 ` Jonathan Roewen
2005-12-07 10:11 ` Oliver Bandel
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