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Incremental linking
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Date: 2009-09-29 (21:04)
From: Gerd Stolpmann <gerd@g...>
Subject: Re: [Caml-list] Incremental linking

Am Dienstag, den 29.09.2009, 20:39 +0200 schrieb Dawid Toton:
> I have lot of modules and they are compiled to native code.
> So I have .cmx and .o files and want to link them faster.

Well, you can link several .cmx files (and their accompanying .o files)
to a .cmxa file (and an accompanying .a file): ocamlopt -a

You cannot do the same again on the next level, i.e. link
several .cmxa/.a together to get another .cmxa/.a. (I don't remember why
this restriction exists.)


> Is is possible to make linking an associative operation acting on modules?
> I would like to do something like the following:
> Knowing the correct partial order of modules (that compiler requires) I
> can create a tree that preserves that order. Leafs are modules. Other
> nodes of the tree correspond to a result of linking all descendant
> modules. Modules that are frequently recompiled are placed closer to the
> root. This way I expect to execute less linking operations during
> development.
> Documentation of ld says that files produced with --relocatable can be
> used as intermediate partially linked files. Can something like this be
> done with object code produced by ocamlopt?
> I don't know ocaml-specific details of linking, so maybe I overlook some
> obvoius obstacle?
> Dawid
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