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From: Richard Jones <rich@annexia.org>
To: caml-list@inria.fr
Subject: [Caml-list] Initialization order bug
Date: Wed, 15 Oct 2003 17:57:23 +0100	[thread overview]
Message-ID: <20031015165723.GA26016@redhat.com> (raw)
In-Reply-To: <20031015093613.GA21312@redhat.com>

Related to the above issue is another strange bug in initialization order.

I have two libraries called:

	Perl
	  ^
	  |-------\
	  |	  | uses
	  |	Pl_LWP_UserAgent
	  |
	  | uses
	  |
	Test

But in this scenario, Perl is not initialized before Test starts
running (and hence the program crashes).

If I add a false dependency so that Test uses Pl_LWP_UserAgent, then
everything works (Perl is initialized OK before use).

Unfortunately this bug defies creating a minimal example, but if you
download:

http://www.annexia.org/tmp/perl4caml-0.3.2.tar.gz

then look at the top of examples/test.ml. Try running with and
without the fake 'let f = Pl_LWP_UserAgent.may' command at the
top of the file.

Without & it segfaults because Perl is never initialized before
being called.

With & it works OK.

The two other example programs already require one or other of the
Pl_* modules, so they work OK.

This is OCaml 3.07 from Debian/unstable.

Rich.

-- 
Richard Jones. http://www.annexia.org/ http://freshmeat.net/users/rwmj
Merjis Ltd. http://www.merjis.com/ - all your business data are belong to you.
MONOLITH is an advanced framework for writing web applications in C, easier
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  reply	other threads:[~2003-10-15 16:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-15  9:36 [Caml-list] "Error while building custom runtime system" Richard Jones
2003-10-15 16:57 ` Richard Jones [this message]
     [not found]   ` <16269.37646.599166.88324@karryall.dnsalias.org>
2003-10-16  9:18     ` [Caml-list] Initialization order bug Richard Jones

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